From 8cf12c39bed8a8ecdf04181e68f7194f6c29f856 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir@tuxera.com>
Date: Fri, 30 Oct 2020 14:28:39 +0200
Subject: [PATCH 0001/4878] erofs: remove a void EROFS_VERSION macro set in
 Makefile

Since commit 4f761fa253b4 ("erofs: rename errln/infoln/debugln to
erofs_{err, info, dbg}") the defined macro EROFS_VERSION has no affect,
therefore removing it from the Makefile is a non-functional change.

Link: https://lore.kernel.org/r/20201030122839.25431-1-vladimir@tuxera.com
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Vladimir Zapolskiy <vladimir@tuxera.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/Makefile | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/fs/erofs/Makefile b/fs/erofs/Makefile
index 46f2aa4ba46c2..af159539fc1b2 100644
--- a/fs/erofs/Makefile
+++ b/fs/erofs/Makefile
@@ -1,11 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
-EROFS_VERSION = "1.0"
-
-ccflags-y += -DEROFS_VERSION=\"$(EROFS_VERSION)\"
-
 obj-$(CONFIG_EROFS_FS) += erofs.o
 erofs-objs := super.o inode.o data.o namei.o dir.o utils.o
 erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
 erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o
-
-- 
GitLab


From e74fd4e33a6de4987edfd2ec880e5bee1f8da415 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Tue, 8 Dec 2020 17:58:32 +0800
Subject: [PATCH 0002/4878] erofs: get rid of magical Z_EROFS_MAPPING_STAGING

Previously, we played around with magical page->mapping for short-lived
temporary pages since we need to identify different types of pages in
the same pcluster but both invalidated and short-lived temporary pages
can have page->mapping == NULL. It was considered as safe because that
temporary pages are all non-LRU / non-movable pages.

This patch tends to use specific page->private to identify short-lived
pages instead so it won't rely on page->mapping anymore. Details are
described in "compress.h" as well.

Link: https://lore.kernel.org/r/20201208095834.3133565-1-hsiangkao@redhat.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/compress.h     | 51 ++++++++++++++++++++++++++----------
 fs/erofs/decompressor.c |  2 +-
 fs/erofs/zdata.c        | 57 ++++++++++++++++++++++-------------------
 fs/erofs/zdata.h        |  1 +
 4 files changed, 71 insertions(+), 40 deletions(-)

diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h
index 3d452443c545b..4dadde18cdf19 100644
--- a/fs/erofs/compress.h
+++ b/fs/erofs/compress.h
@@ -26,30 +26,55 @@ struct z_erofs_decompress_req {
 	bool inplace_io, partial_decoding;
 };
 
+/* some special page->private (unsigned long, see below) */
+#define Z_EROFS_SHORTLIVED_PAGE		(-1UL << 2)
+
 /*
- * - 0x5A110C8D ('sallocated', Z_EROFS_MAPPING_STAGING) -
- * used to mark temporary allocated pages from other
- * file/cached pages and NULL mapping pages.
+ * For all pages in a pcluster, page->private should be one of
+ * Type                         Last 2bits      page->private
+ * short-lived page             00              Z_EROFS_SHORTLIVED_PAGE
+ * cached/managed page          00              pointer to z_erofs_pcluster
+ * online page (file-backed,    01/10/11        sub-index << 2 | count
+ *              some pages can be used for inplace I/O)
+ *
+ * page->mapping should be one of
+ * Type                 page->mapping
+ * short-lived page     NULL
+ * cached/managed page  non-NULL or NULL (invalidated/truncated page)
+ * online page          non-NULL
+ *
+ * For all managed pages, PG_private should be set with 1 extra refcount,
+ * which is used for page reclaim / migration.
  */
-#define Z_EROFS_MAPPING_STAGING         ((void *)0x5A110C8D)
 
-/* check if a page is marked as staging */
-static inline bool z_erofs_page_is_staging(struct page *page)
+/*
+ * short-lived pages are pages directly from buddy system with specific
+ * page->private (no need to set PagePrivate since these are non-LRU /
+ * non-movable pages and bypass reclaim / migration code).
+ */
+static inline bool z_erofs_is_shortlived_page(struct page *page)
 {
-	return page->mapping == Z_EROFS_MAPPING_STAGING;
+	if (page->private != Z_EROFS_SHORTLIVED_PAGE)
+		return false;
+
+	DBG_BUGON(page->mapping);
+	return true;
 }
 
-static inline bool z_erofs_put_stagingpage(struct list_head *pagepool,
-					   struct page *page)
+static inline bool z_erofs_put_shortlivedpage(struct list_head *pagepool,
+					      struct page *page)
 {
-	if (!z_erofs_page_is_staging(page))
+	if (!z_erofs_is_shortlived_page(page))
 		return false;
 
-	/* staging pages should not be used by others at the same time */
-	if (page_ref_count(page) > 1)
+	/* short-lived pages should not be used by others at the same time */
+	if (page_ref_count(page) > 1) {
 		put_page(page);
-	else
+	} else {
+		/* follow the pcluster rule above. */
+		set_page_private(page, 0);
 		list_add(&page->lru, pagepool);
+	}
 	return true;
 }
 
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index cbadbf55c6c20..1cb1ffd105698 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -76,7 +76,7 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 			victim = erofs_allocpage(pagepool, GFP_KERNEL);
 			if (!victim)
 				return -ENOMEM;
-			victim->mapping = Z_EROFS_MAPPING_STAGING;
+			set_page_private(victim, Z_EROFS_SHORTLIVED_PAGE);
 		}
 		rq->out[i] = victim;
 	}
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 86fd3bf62af61..cfb0d11f893b7 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -226,11 +226,8 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 
 		/* barrier is implied in the following 'unlock_page' */
 		WRITE_ONCE(pcl->compressed_pages[i], NULL);
-		set_page_private(page, 0);
-		ClearPagePrivate(page);
-
+		detach_page_private(page);
 		unlock_page(page);
-		put_page(page);
 	}
 	return 0;
 }
@@ -254,10 +251,8 @@ int erofs_try_to_free_cached_page(struct address_space *mapping,
 		}
 		erofs_workgroup_unfreeze(&pcl->obj, 1);
 
-		if (ret) {
-			ClearPagePrivate(page);
-			put_page(page);
-		}
+		if (ret)
+			detach_page_private(page);
 	}
 	return ret;
 }
@@ -648,12 +643,12 @@ hitted:
 
 retry:
 	err = z_erofs_attach_page(clt, page, page_type);
-	/* should allocate an additional staging page for pagevec */
+	/* should allocate an additional short-lived page for pagevec */
 	if (err == -EAGAIN) {
 		struct page *const newpage =
 				alloc_page(GFP_NOFS | __GFP_NOFAIL);
 
-		newpage->mapping = Z_EROFS_MAPPING_STAGING;
+		set_page_private(newpage, Z_EROFS_SHORTLIVED_PAGE);
 		err = z_erofs_attach_page(clt, newpage,
 					  Z_EROFS_PAGE_TYPE_EXCLUSIVE);
 		if (!err)
@@ -710,6 +705,11 @@ static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,
 		queue_work(z_erofs_workqueue, &io->u.work);
 }
 
+static bool z_erofs_page_is_invalidated(struct page *page)
+{
+	return !page->mapping && !z_erofs_is_shortlived_page(page);
+}
+
 static void z_erofs_decompressqueue_endio(struct bio *bio)
 {
 	tagptr1_t t = tagptr_init(tagptr1_t, bio->bi_private);
@@ -722,7 +722,7 @@ static void z_erofs_decompressqueue_endio(struct bio *bio)
 		struct page *page = bvec->bv_page;
 
 		DBG_BUGON(PageUptodate(page));
-		DBG_BUGON(!page->mapping);
+		DBG_BUGON(z_erofs_page_is_invalidated(page));
 
 		if (err)
 			SetPageError(page);
@@ -795,9 +795,9 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 
 		/* all pages in pagevec ought to be valid */
 		DBG_BUGON(!page);
-		DBG_BUGON(!page->mapping);
+		DBG_BUGON(z_erofs_page_is_invalidated(page));
 
-		if (z_erofs_put_stagingpage(pagepool, page))
+		if (z_erofs_put_shortlivedpage(pagepool, page))
 			continue;
 
 		if (page_type == Z_EROFS_VLE_PAGE_TYPE_HEAD)
@@ -831,9 +831,9 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 
 		/* all compressed pages ought to be valid */
 		DBG_BUGON(!page);
-		DBG_BUGON(!page->mapping);
+		DBG_BUGON(z_erofs_page_is_invalidated(page));
 
-		if (!z_erofs_page_is_staging(page)) {
+		if (!z_erofs_is_shortlived_page(page)) {
 			if (erofs_page_is_managed(sbi, page)) {
 				if (!PageUptodate(page))
 					err = -EIO;
@@ -858,7 +858,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 			overlapped = true;
 		}
 
-		/* PG_error needs checking for inplaced and staging pages */
+		/* PG_error needs checking for all non-managed pages */
 		if (PageError(page)) {
 			DBG_BUGON(PageUptodate(page));
 			err = -EIO;
@@ -897,8 +897,8 @@ out:
 		if (erofs_page_is_managed(sbi, page))
 			continue;
 
-		/* recycle all individual staging pages */
-		(void)z_erofs_put_stagingpage(pagepool, page);
+		/* recycle all individual short-lived pages */
+		(void)z_erofs_put_shortlivedpage(pagepool, page);
 
 		WRITE_ONCE(compressed_pages[i], NULL);
 	}
@@ -908,10 +908,10 @@ out:
 		if (!page)
 			continue;
 
-		DBG_BUGON(!page->mapping);
+		DBG_BUGON(z_erofs_page_is_invalidated(page));
 
-		/* recycle all individual staging pages */
-		if (z_erofs_put_stagingpage(pagepool, page))
+		/* recycle all individual short-lived pages */
+		if (z_erofs_put_shortlivedpage(pagepool, page))
 			continue;
 
 		if (err < 0)
@@ -1011,13 +1011,17 @@ repeat:
 	mapping = READ_ONCE(page->mapping);
 
 	/*
-	 * unmanaged (file) pages are all locked solidly,
+	 * file-backed online pages in plcuster are all locked steady,
 	 * therefore it is impossible for `mapping' to be NULL.
 	 */
 	if (mapping && mapping != mc)
 		/* ought to be unmanaged pages */
 		goto out;
 
+	/* directly return for shortlived page as well */
+	if (z_erofs_is_shortlived_page(page))
+		goto out;
+
 	lock_page(page);
 
 	/* only true if page reclaim goes wrong, should never happen */
@@ -1062,8 +1066,8 @@ repeat:
 out_allocpage:
 	page = erofs_allocpage(pagepool, gfp | __GFP_NOFAIL);
 	if (!tocache || add_to_page_cache_lru(page, mc, index + nr, gfp)) {
-		/* non-LRU / non-movable temporary page is needed */
-		page->mapping = Z_EROFS_MAPPING_STAGING;
+		/* turn into temporary page if fails */
+		set_page_private(page, Z_EROFS_SHORTLIVED_PAGE);
 		tocache = false;
 	}
 
@@ -1080,8 +1084,9 @@ out_allocpage:
 	}
 
 	if (tocache) {
-		set_page_private(page, (unsigned long)pcl);
-		SetPagePrivate(page);
+		attach_page_private(page, pcl);
+		/* drop a ref added by allocpage (then we have 2 refs here) */
+		put_page(page);
 	}
 out:	/* the only exit (for tracing and debugging) */
 	return page;
diff --git a/fs/erofs/zdata.h b/fs/erofs/zdata.h
index 68c9b29fc0ca5..b503b353d4abc 100644
--- a/fs/erofs/zdata.h
+++ b/fs/erofs/zdata.h
@@ -173,6 +173,7 @@ static inline void z_erofs_onlinepage_endio(struct page *page)
 
 	v = atomic_dec_return(u.o);
 	if (!(v & Z_EROFS_ONLINEPAGE_COUNT_MASK)) {
+		set_page_private(page, 0);
 		ClearPagePrivate(page);
 		if (!PageError(page))
 			SetPageUptodate(page);
-- 
GitLab


From faca09518d611a2b6391a6ee410c524d060fb5aa Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Tue, 8 Dec 2020 17:58:33 +0800
Subject: [PATCH 0003/4878] erofs: insert to managed cache after adding to pcl

Previously, it could be some concern to call add_to_page_cache_lru()
with page->mapping == Z_EROFS_MAPPING_STAGING (!= NULL).

In contrast, page->private is used instead now, so partially revert
commit 5ddcee1f3a1c ("erofs: get rid of __stagingpage_alloc helper")
with some adaption for simplicity.

Link: https://lore.kernel.org/r/20201208095834.3133565-2-hsiangkao@redhat.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zdata.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index cfb0d11f893b7..37fee144f0e7d 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -1065,29 +1065,21 @@ repeat:
 	put_page(page);
 out_allocpage:
 	page = erofs_allocpage(pagepool, gfp | __GFP_NOFAIL);
-	if (!tocache || add_to_page_cache_lru(page, mc, index + nr, gfp)) {
-		/* turn into temporary page if fails */
-		set_page_private(page, Z_EROFS_SHORTLIVED_PAGE);
-		tocache = false;
-	}
-
 	if (oldpage != cmpxchg(&pcl->compressed_pages[nr], oldpage, page)) {
-		if (tocache) {
-			/* since it added to managed cache successfully */
-			unlock_page(page);
-			put_page(page);
-		} else {
-			list_add(&page->lru, pagepool);
-		}
+		list_add(&page->lru, pagepool);
 		cond_resched();
 		goto repeat;
 	}
 
-	if (tocache) {
-		attach_page_private(page, pcl);
-		/* drop a ref added by allocpage (then we have 2 refs here) */
-		put_page(page);
+	if (!tocache || add_to_page_cache_lru(page, mc, index + nr, gfp)) {
+		/* turn into temporary page if fails (1 ref) */
+		set_page_private(page, Z_EROFS_SHORTLIVED_PAGE);
+		goto out;
 	}
+	attach_page_private(page, pcl);
+	/* drop a refcount added by allocpage (then we have 2 refs here) */
+	put_page(page);
+
 out:	/* the only exit (for tracing and debugging) */
 	return page;
 }
-- 
GitLab


From 43f037b6c3d0e03b6bde894e0eb6113da38b1a13 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Tue, 8 Dec 2020 17:58:34 +0800
Subject: [PATCH 0004/4878] erofs: simplify try_to_claim_pcluster()

simplify try_to_claim_pcluster() by directly using cmpxchg() here
(the retry loop caused more overhead.) Also, move the chain loop
detection in and rename it to z_erofs_try_to_claim_pcluster().

Link: https://lore.kernel.org/r/20201208095834.3133565-3-hsiangkao@redhat.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zdata.c | 51 +++++++++++++++++++++++-------------------------
 1 file changed, 24 insertions(+), 27 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 37fee144f0e7d..777790038bc9d 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -292,34 +292,33 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 	return ret ? 0 : -EAGAIN;
 }
 
-static enum z_erofs_collectmode
-try_to_claim_pcluster(struct z_erofs_pcluster *pcl,
-		      z_erofs_next_pcluster_t *owned_head)
+static void z_erofs_try_to_claim_pcluster(struct z_erofs_collector *clt)
 {
-	/* let's claim these following types of pclusters */
-retry:
-	if (pcl->next == Z_EROFS_PCLUSTER_NIL) {
-		/* type 1, nil pcluster */
-		if (cmpxchg(&pcl->next, Z_EROFS_PCLUSTER_NIL,
-			    *owned_head) != Z_EROFS_PCLUSTER_NIL)
-			goto retry;
+	struct z_erofs_pcluster *pcl = clt->pcl;
+	z_erofs_next_pcluster_t *owned_head = &clt->owned_head;
 
+	/* type 1, nil pcluster (this pcluster doesn't belong to any chain.) */
+	if (cmpxchg(&pcl->next, Z_EROFS_PCLUSTER_NIL,
+		    *owned_head) == Z_EROFS_PCLUSTER_NIL) {
 		*owned_head = &pcl->next;
-		/* lucky, I am the followee :) */
-		return COLLECT_PRIMARY_FOLLOWED;
-	} else if (pcl->next == Z_EROFS_PCLUSTER_TAIL) {
-		/*
-		 * type 2, link to the end of a existing open chain,
-		 * be careful that its submission itself is governed
-		 * by the original owned chain.
-		 */
-		if (cmpxchg(&pcl->next, Z_EROFS_PCLUSTER_TAIL,
-			    *owned_head) != Z_EROFS_PCLUSTER_TAIL)
-			goto retry;
+		/* so we can attach this pcluster to our submission chain. */
+		clt->mode = COLLECT_PRIMARY_FOLLOWED;
+		return;
+	}
+
+	/*
+	 * type 2, link to the end of an existing open chain, be careful
+	 * that its submission is controlled by the original attached chain.
+	 */
+	if (cmpxchg(&pcl->next, Z_EROFS_PCLUSTER_TAIL,
+		    *owned_head) == Z_EROFS_PCLUSTER_TAIL) {
 		*owned_head = Z_EROFS_PCLUSTER_TAIL;
-		return COLLECT_PRIMARY_HOOKED;
+		clt->mode = COLLECT_PRIMARY_HOOKED;
+		clt->tailpcl = NULL;
+		return;
 	}
-	return COLLECT_PRIMARY;	/* :( better luck next time */
+	/* type 3, it belongs to a chain, but it isn't the end of the chain */
+	clt->mode = COLLECT_PRIMARY;
 }
 
 static int z_erofs_lookup_collection(struct z_erofs_collector *clt,
@@ -364,10 +363,8 @@ static int z_erofs_lookup_collection(struct z_erofs_collector *clt,
 	/* used to check tail merging loop due to corrupted images */
 	if (clt->owned_head == Z_EROFS_PCLUSTER_TAIL)
 		clt->tailpcl = pcl;
-	clt->mode = try_to_claim_pcluster(pcl, &clt->owned_head);
-	/* clean tailpcl if the current owned_head is Z_EROFS_PCLUSTER_TAIL */
-	if (clt->owned_head == Z_EROFS_PCLUSTER_TAIL)
-		clt->tailpcl = NULL;
+
+	z_erofs_try_to_claim_pcluster(clt);
 	clt->cl = cl;
 	return 0;
 }
-- 
GitLab


From ee264ce71050a060df31a82d68d05244a53fa221 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 9 Dec 2020 20:37:17 +0800
Subject: [PATCH 0005/4878] erofs: force inplace I/O under low memory scenario

Try to forcely switch to inplace I/O under low memory scenario in
order to avoid direct memory reclaim due to cached page allocation.

Link: https://lore.kernel.org/r/20201209123717.12430-1-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/compress.h |  3 +++
 fs/erofs/zdata.c    | 48 +++++++++++++++++++++++++++++++++++++--------
 2 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h
index 4dadde18cdf19..aea129ddda74b 100644
--- a/fs/erofs/compress.h
+++ b/fs/erofs/compress.h
@@ -28,11 +28,13 @@ struct z_erofs_decompress_req {
 
 /* some special page->private (unsigned long, see below) */
 #define Z_EROFS_SHORTLIVED_PAGE		(-1UL << 2)
+#define Z_EROFS_PREALLOCATED_PAGE	(-2UL << 2)
 
 /*
  * For all pages in a pcluster, page->private should be one of
  * Type                         Last 2bits      page->private
  * short-lived page             00              Z_EROFS_SHORTLIVED_PAGE
+ * preallocated page (tryalloc) 00              Z_EROFS_PREALLOCATED_PAGE
  * cached/managed page          00              pointer to z_erofs_pcluster
  * online page (file-backed,    01/10/11        sub-index << 2 | count
  *              some pages can be used for inplace I/O)
@@ -40,6 +42,7 @@ struct z_erofs_decompress_req {
  * page->mapping should be one of
  * Type                 page->mapping
  * short-lived page     NULL
+ * preallocated page    NULL
  * cached/managed page  non-NULL or NULL (invalidated/truncated page)
  * online page          non-NULL
  *
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 777790038bc9d..6cb356c4217b2 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -20,6 +20,11 @@
 enum z_erofs_cache_alloctype {
 	DONTALLOC,	/* don't allocate any cached pages */
 	DELAYEDALLOC,	/* delayed allocation (at the time of submitting io) */
+	/*
+	 * try to use cached I/O if page allocation succeeds or fallback
+	 * to in-place I/O instead to avoid any direct reclaim.
+	 */
+	TRYALLOC,
 };
 
 /*
@@ -154,13 +159,16 @@ static DEFINE_MUTEX(z_pagemap_global_lock);
 
 static void preload_compressed_pages(struct z_erofs_collector *clt,
 				     struct address_space *mc,
-				     enum z_erofs_cache_alloctype type)
+				     enum z_erofs_cache_alloctype type,
+				     struct list_head *pagepool)
 {
 	const struct z_erofs_pcluster *pcl = clt->pcl;
 	const unsigned int clusterpages = BIT(pcl->clusterbits);
 	struct page **pages = clt->compressedpages;
 	pgoff_t index = pcl->obj.index + (pages - pcl->compressed_pages);
 	bool standalone = true;
+	gfp_t gfp = (mapping_gfp_mask(mc) & ~__GFP_DIRECT_RECLAIM) |
+			__GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN;
 
 	if (clt->mode < COLLECT_PRIMARY_FOLLOWED)
 		return;
@@ -168,6 +176,7 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 	for (; pages < pcl->compressed_pages + clusterpages; ++pages) {
 		struct page *page;
 		compressed_page_t t;
+		struct page *newpage = NULL;
 
 		/* the compressed page was loaded before */
 		if (READ_ONCE(*pages))
@@ -179,7 +188,15 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 			t = tag_compressed_page_justfound(page);
 		} else if (type == DELAYEDALLOC) {
 			t = tagptr_init(compressed_page_t, PAGE_UNALLOCATED);
+		} else if (type == TRYALLOC) {
+			newpage = erofs_allocpage(pagepool, gfp);
+			if (!newpage)
+				goto dontalloc;
+
+			set_page_private(newpage, Z_EROFS_PREALLOCATED_PAGE);
+			t = tag_compressed_page_justfound(newpage);
 		} else {	/* DONTALLOC */
+dontalloc:
 			if (standalone)
 				clt->compressedpages = pages;
 			standalone = false;
@@ -189,8 +206,12 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 		if (!cmpxchg_relaxed(pages, NULL, tagptr_cast_ptr(t)))
 			continue;
 
-		if (page)
+		if (page) {
 			put_page(page);
+		} else if (newpage) {
+			set_page_private(newpage, 0);
+			list_add(&newpage->lru, pagepool);
+		}
 	}
 
 	if (standalone)		/* downgrade to PRIMARY_FOLLOWED_NOINPLACE */
@@ -554,7 +575,7 @@ static bool should_alloc_managed_pages(struct z_erofs_decompress_frontend *fe,
 }
 
 static int z_erofs_do_read_page(struct z_erofs_decompress_frontend *fe,
-				struct page *page)
+				struct page *page, struct list_head *pagepool)
 {
 	struct inode *const inode = fe->inode;
 	struct erofs_sb_info *const sbi = EROFS_I_SB(inode);
@@ -607,11 +628,12 @@ restart_now:
 
 	/* preload all compressed pages (maybe downgrade role if necessary) */
 	if (should_alloc_managed_pages(fe, sbi->ctx.cache_strategy, map->m_la))
-		cache_strategy = DELAYEDALLOC;
+		cache_strategy = TRYALLOC;
 	else
 		cache_strategy = DONTALLOC;
 
-	preload_compressed_pages(clt, MNGD_MAPPING(sbi), cache_strategy);
+	preload_compressed_pages(clt, MNGD_MAPPING(sbi),
+				 cache_strategy, pagepool);
 
 hitted:
 	/*
@@ -1005,6 +1027,16 @@ repeat:
 	justfound = tagptr_unfold_tags(t);
 	page = tagptr_unfold_ptr(t);
 
+	/*
+	 * preallocated cached pages, which is used to avoid direct reclaim
+	 * otherwise, it will go inplace I/O path instead.
+	 */
+	if (page->private == Z_EROFS_PREALLOCATED_PAGE) {
+		WRITE_ONCE(pcl->compressed_pages[nr], page);
+		set_page_private(page, 0);
+		tocache = true;
+		goto out_tocache;
+	}
 	mapping = READ_ONCE(page->mapping);
 
 	/*
@@ -1067,7 +1099,7 @@ out_allocpage:
 		cond_resched();
 		goto repeat;
 	}
-
+out_tocache:
 	if (!tocache || add_to_page_cache_lru(page, mc, index + nr, gfp)) {
 		/* turn into temporary page if fails (1 ref) */
 		set_page_private(page, Z_EROFS_SHORTLIVED_PAGE);
@@ -1278,7 +1310,7 @@ static int z_erofs_readpage(struct file *file, struct page *page)
 
 	f.headoffset = (erofs_off_t)page->index << PAGE_SHIFT;
 
-	err = z_erofs_do_read_page(&f, page);
+	err = z_erofs_do_read_page(&f, page, &pagepool);
 	(void)z_erofs_collector_end(&f.clt);
 
 	/* if some compressed cluster ready, need submit them anyway */
@@ -1332,7 +1364,7 @@ static void z_erofs_readahead(struct readahead_control *rac)
 		/* traversal in reverse order */
 		head = (void *)page_private(page);
 
-		err = z_erofs_do_read_page(&f, page);
+		err = z_erofs_do_read_page(&f, page, &pagepool);
 		if (err)
 			erofs_err(inode->i_sb,
 				  "readahead error at page %lu @ nid %llu",
-- 
GitLab


From c370f6662585d39b4a4107ec204b8ff93743afae Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Wed, 9 Dec 2020 19:57:40 +0800
Subject: [PATCH 0006/4878] erofs: avoid using generic_block_bmap

Surprisingly, `block' in sector_t indicates the number of
i_blkbits-sized blocks rather than sectors for bmap.

In addition, considering buffer_head limits mapped size to 32-bits,
should avoid using generic_block_bmap.

Link: https://lore.kernel.org/r/20201209115740.18802-1-huangjianan@oppo.com
Fixes: 9da681e017a3 ("staging: erofs: support bmap")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
[ Gao Xiang: slightly update the commit message description. ]
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/data.c | 26 +++++++-------------------
 1 file changed, 7 insertions(+), 19 deletions(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 347be146884c3..ea4f693bee224 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -312,27 +312,12 @@ static void erofs_raw_access_readahead(struct readahead_control *rac)
 		submit_bio(bio);
 }
 
-static int erofs_get_block(struct inode *inode, sector_t iblock,
-			   struct buffer_head *bh, int create)
-{
-	struct erofs_map_blocks map = {
-		.m_la = iblock << 9,
-	};
-	int err;
-
-	err = erofs_map_blocks(inode, &map, EROFS_GET_BLOCKS_RAW);
-	if (err)
-		return err;
-
-	if (map.m_flags & EROFS_MAP_MAPPED)
-		bh->b_blocknr = erofs_blknr(map.m_pa);
-
-	return err;
-}
-
 static sector_t erofs_bmap(struct address_space *mapping, sector_t block)
 {
 	struct inode *inode = mapping->host;
+	struct erofs_map_blocks map = {
+		.m_la = blknr_to_addr(block),
+	};
 
 	if (EROFS_I(inode)->datalayout == EROFS_INODE_FLAT_INLINE) {
 		erofs_blk_t blks = i_size_read(inode) >> LOG_BLOCK_SIZE;
@@ -341,7 +326,10 @@ static sector_t erofs_bmap(struct address_space *mapping, sector_t block)
 			return 0;
 	}
 
-	return generic_block_bmap(mapping, block, erofs_get_block);
+	if (!erofs_map_blocks(inode, &map, EROFS_GET_BLOCKS_RAW))
+		return erofs_blknr(map.m_pa);
+
+	return 0;
 }
 
 /* for uncompressed (aligned) files and raw access for other files */
-- 
GitLab


From c76119a525a841fc845bc5551fefacc985d37be8 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 5 Jan 2021 23:03:16 -0500
Subject: [PATCH 0007/4878] erofs: use %pd instead of messing with ->d_name

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/erofs/namei.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
index 5f8cc7346c694..3a81e1f7fc067 100644
--- a/fs/erofs/namei.c
+++ b/fs/erofs/namei.c
@@ -234,8 +234,8 @@ static struct dentry *erofs_lookup(struct inode *dir,
 	} else if (err) {
 		inode = ERR_PTR(err);
 	} else {
-		erofs_dbg("%s, %s (nid %llu) found, d_type %u", __func__,
-			  dentry->d_name.name, nid, d_type);
+		erofs_dbg("%s, %pd (nid %llu) found, d_type %u", __func__,
+			  dentry, nid, d_type);
 		inode = erofs_iget(dir->i_sb, nid, d_type == FT_DIR);
 	}
 	return d_splice_alias(inode, dentry);
-- 
GitLab


From 169b40a1a5c43e9c63349466d6d93c7ff27b5f84 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 20 Jan 2021 09:30:16 +0800
Subject: [PATCH 0008/4878] erofs: fix shift-out-of-bounds of blkszbits

syzbot generated a crafted bitszbits which can be shifted
out-of-bounds[1]. So directly print unsupported blkszbits
instead of blksize.

[1] https://lore.kernel.org/r/000000000000c72ddd05b9444d2f@google.com

Link: https://lore.kernel.org/r/20210120013016.14071-1-hsiangkao@aol.com
Reported-by: syzbot+c68f467cd7c45860e8d4@syzkaller.appspotmail.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index be10b16ea66ee..d5a6b9b888a56 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -158,8 +158,8 @@ static int erofs_read_superblock(struct super_block *sb)
 	blkszbits = dsb->blkszbits;
 	/* 9(512 bytes) + LOG_SECTORS_PER_BLOCK == LOG_BLOCK_SIZE */
 	if (blkszbits != LOG_BLOCK_SIZE) {
-		erofs_err(sb, "blksize %u isn't supported on this platform",
-			  1 << blkszbits);
+		erofs_err(sb, "blkszbits %u isn't supported on this platform",
+			  blkszbits);
 		goto out;
 	}
 
-- 
GitLab


From 00f982c3a6d4353cd26c4047c8904da870e59194 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Tue, 9 Feb 2021 21:06:18 +0800
Subject: [PATCH 0009/4878] erofs: initialized fields can only be observed
 after bit is set

Currently, although set_bit() & test_bit() pairs are used as a fast-
path for initialized configurations. However, these atomic ops are
actually relaxed forms. Instead, load-acquire & store-release form is
needed to make sure uninitialized fields won't be observed in advance
here (yet no such corresponding bitops so use full barriers instead.)

Link: https://lore.kernel.org/r/20210209130618.15838-1-hsiangkao@aol.com
Fixes: 62dc45979f3f ("staging: erofs: fix race of initializing xattrs of a inode at the same time")
Fixes: 152a333a5895 ("staging: erofs: add compacted compression indexes support")
Cc: <stable@vger.kernel.org> # 5.3+
Reported-by: Huang Jianan <huangjianan@oppo.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/xattr.c | 10 +++++++++-
 fs/erofs/zmap.c  | 10 +++++++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
index 5bde77d708524..47314a26767a8 100644
--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -48,8 +48,14 @@ static int init_inode_xattrs(struct inode *inode)
 	int ret = 0;
 
 	/* the most case is that xattrs of this inode are initialized. */
-	if (test_bit(EROFS_I_EA_INITED_BIT, &vi->flags))
+	if (test_bit(EROFS_I_EA_INITED_BIT, &vi->flags)) {
+		/*
+		 * paired with smp_mb() at the end of the function to ensure
+		 * fields will only be observed after the bit is set.
+		 */
+		smp_mb();
 		return 0;
+	}
 
 	if (wait_on_bit_lock(&vi->flags, EROFS_I_BL_XATTR_BIT, TASK_KILLABLE))
 		return -ERESTARTSYS;
@@ -137,6 +143,8 @@ static int init_inode_xattrs(struct inode *inode)
 	}
 	xattr_iter_end(&it, atomic_map);
 
+	/* paired with smp_mb() at the beginning of the function. */
+	smp_mb();
 	set_bit(EROFS_I_EA_INITED_BIT, &vi->flags);
 
 out_unlock:
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index ae325541884e3..14d2de35110cc 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -36,8 +36,14 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 	void *kaddr;
 	struct z_erofs_map_header *h;
 
-	if (test_bit(EROFS_I_Z_INITED_BIT, &vi->flags))
+	if (test_bit(EROFS_I_Z_INITED_BIT, &vi->flags)) {
+		/*
+		 * paired with smp_mb() at the end of the function to ensure
+		 * fields will only be observed after the bit is set.
+		 */
+		smp_mb();
 		return 0;
+	}
 
 	if (wait_on_bit_lock(&vi->flags, EROFS_I_BL_Z_BIT, TASK_KILLABLE))
 		return -ERESTARTSYS;
@@ -83,6 +89,8 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 
 	vi->z_physical_clusterbits[1] = vi->z_logical_clusterbits +
 					((h->h_clusterbits >> 5) & 7);
+	/* paired with smp_mb() at the beginning of the function */
+	smp_mb();
 	set_bit(EROFS_I_Z_INITED_BIT, &vi->flags);
 unmap_done:
 	kunmap_atomic(kaddr);
-- 
GitLab


From 610664e21845f9ca472f0dc890ba763f25f98468 Mon Sep 17 00:00:00 2001
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: Fri, 29 Jan 2021 04:38:57 +0000
Subject: [PATCH 0010/4878] block: Add bio_max_segs

It's often inconvenient to use BIO_MAX_PAGES due to min() requiring the
sign to be the same.  Introduce bio_max_segs() and change BIO_MAX_PAGES to
be unsigned to make it easier for the users.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-map.c                     |  4 +---
 drivers/block/xen-blkback/blkback.c |  4 +---
 drivers/md/dm-io.c                  |  4 ++--
 drivers/md/dm-log-writes.c          | 10 +++++-----
 drivers/nvme/target/io-cmd-bdev.c   |  8 ++++----
 drivers/nvme/target/passthru.c      |  4 ++--
 drivers/target/target_core_iblock.c |  9 +++------
 drivers/target/target_core_pscsi.c  |  2 +-
 fs/block_dev.c                      | 10 +++++-----
 fs/direct-io.c                      |  2 +-
 fs/erofs/data.c                     |  4 +---
 fs/ext4/readpage.c                  |  3 +--
 fs/f2fs/data.c                      |  3 +--
 fs/f2fs/node.c                      |  2 +-
 fs/iomap/buffered-io.c              |  4 ++--
 fs/mpage.c                          |  4 +---
 fs/nfs/blocklayout/blocklayout.c    |  6 +++---
 fs/xfs/xfs_bio_io.c                 |  2 +-
 fs/xfs/xfs_buf.c                    |  4 ++--
 include/linux/bio.h                 |  7 ++++++-
 20 files changed, 44 insertions(+), 52 deletions(-)

diff --git a/block/blk-map.c b/block/blk-map.c
index 21630dccac628..369e204d14d01 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -150,9 +150,7 @@ static int bio_copy_user_iov(struct request *rq, struct rq_map_data *map_data,
 	bmd->is_our_pages = !map_data;
 	bmd->is_null_mapped = (map_data && map_data->null_mapped);
 
-	nr_pages = DIV_ROUND_UP(offset + len, PAGE_SIZE);
-	if (nr_pages > BIO_MAX_PAGES)
-		nr_pages = BIO_MAX_PAGES;
+	nr_pages = bio_max_segs(DIV_ROUND_UP(offset + len, PAGE_SIZE));
 
 	ret = -ENOMEM;
 	bio = bio_kmalloc(gfp_mask, nr_pages);
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 9ebf53903d7bf..2d5ebf2c321b2 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -1322,9 +1322,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
 				     pages[i]->page,
 				     seg[i].nsec << 9,
 				     seg[i].offset) == 0)) {
-
-			int nr_iovecs = min_t(int, (nseg-i), BIO_MAX_PAGES);
-			bio = bio_alloc(GFP_KERNEL, nr_iovecs);
+			bio = bio_alloc(GFP_KERNEL, bio_max_segs(nseg - i));
 			if (unlikely(bio == NULL))
 				goto fail_put_bio;
 
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 4312007d2d34b..2d3cda0acacb6 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -341,8 +341,8 @@ static void do_region(int op, int op_flags, unsigned region,
 			num_bvecs = 1;
 			break;
 		default:
-			num_bvecs = min_t(int, BIO_MAX_PAGES,
-					  dm_sector_div_up(remaining, (PAGE_SIZE >> SECTOR_SHIFT)));
+			num_bvecs = bio_max_segs(dm_sector_div_up(remaining,
+						(PAGE_SIZE >> SECTOR_SHIFT)));
 		}
 
 		bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, &io->client->bios);
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index e3d35c6c9f714..57882654ffee7 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -264,15 +264,14 @@ static int write_inline_data(struct log_writes_c *lc, void *entry,
 			     size_t entrylen, void *data, size_t datalen,
 			     sector_t sector)
 {
-	int num_pages, bio_pages, pg_datalen, pg_sectorlen, i;
+	int bio_pages, pg_datalen, pg_sectorlen, i;
 	struct page *page;
 	struct bio *bio;
 	size_t ret;
 	void *ptr;
 
 	while (datalen) {
-		num_pages = ALIGN(datalen, PAGE_SIZE) >> PAGE_SHIFT;
-		bio_pages = min(num_pages, BIO_MAX_PAGES);
+		bio_pages = bio_max_segs(DIV_ROUND_UP(datalen, PAGE_SIZE));
 
 		atomic_inc(&lc->io_blocks);
 
@@ -364,7 +363,7 @@ static int log_one_block(struct log_writes_c *lc,
 		goto out;
 
 	atomic_inc(&lc->io_blocks);
-	bio = bio_alloc(GFP_KERNEL, min(block->vec_cnt, BIO_MAX_PAGES));
+	bio = bio_alloc(GFP_KERNEL, bio_max_segs(block->vec_cnt));
 	if (!bio) {
 		DMERR("Couldn't alloc log bio");
 		goto error;
@@ -386,7 +385,8 @@ static int log_one_block(struct log_writes_c *lc,
 		if (ret != block->vecs[i].bv_len) {
 			atomic_inc(&lc->io_blocks);
 			submit_bio(bio);
-			bio = bio_alloc(GFP_KERNEL, min(block->vec_cnt - i, BIO_MAX_PAGES));
+			bio = bio_alloc(GFP_KERNEL,
+					bio_max_segs(block->vec_cnt - i));
 			if (!bio) {
 				DMERR("Couldn't alloc log bio");
 				goto error;
diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index 125dde3f410ee..e2d92da5d5212 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -185,7 +185,7 @@ static int nvmet_bdev_alloc_bip(struct nvmet_req *req, struct bio *bio,
 	}
 
 	bip = bio_integrity_alloc(bio, GFP_NOIO,
-		min_t(unsigned int, req->metadata_sg_cnt, BIO_MAX_PAGES));
+					bio_max_segs(req->metadata_sg_cnt));
 	if (IS_ERR(bip)) {
 		pr_err("Unable to allocate bio_integrity_payload\n");
 		return PTR_ERR(bip);
@@ -225,7 +225,7 @@ static int nvmet_bdev_alloc_bip(struct nvmet_req *req, struct bio *bio,
 
 static void nvmet_bdev_execute_rw(struct nvmet_req *req)
 {
-	int sg_cnt = req->sg_cnt;
+	unsigned int sg_cnt = req->sg_cnt;
 	struct bio *bio;
 	struct scatterlist *sg;
 	struct blk_plug plug;
@@ -263,7 +263,7 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
 		bio = &req->b.inline_bio;
 		bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
 	} else {
-		bio = bio_alloc(GFP_KERNEL, min(sg_cnt, BIO_MAX_PAGES));
+		bio = bio_alloc(GFP_KERNEL, bio_max_segs(sg_cnt));
 	}
 	bio_set_dev(bio, req->ns->bdev);
 	bio->bi_iter.bi_sector = sector;
@@ -290,7 +290,7 @@ static void nvmet_bdev_execute_rw(struct nvmet_req *req)
 				}
 			}
 
-			bio = bio_alloc(GFP_KERNEL, min(sg_cnt, BIO_MAX_PAGES));
+			bio = bio_alloc(GFP_KERNEL, bio_max_segs(sg_cnt));
 			bio_set_dev(bio, req->ns->bdev);
 			bio->bi_iter.bi_sector = sector;
 			bio->bi_opf = op;
diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c
index 8ee94f0568983..6c747dc458df5 100644
--- a/drivers/nvme/target/passthru.c
+++ b/drivers/nvme/target/passthru.c
@@ -26,7 +26,7 @@ static u16 nvmet_passthru_override_id_ctrl(struct nvmet_req *req)
 	struct nvme_ctrl *pctrl = ctrl->subsys->passthru_ctrl;
 	u16 status = NVME_SC_SUCCESS;
 	struct nvme_id_ctrl *id;
-	int max_hw_sectors;
+	unsigned int max_hw_sectors;
 	int page_shift;
 
 	id = kzalloc(sizeof(*id), GFP_KERNEL);
@@ -200,7 +200,7 @@ static int nvmet_passthru_map_sg(struct nvmet_req *req, struct request *rq)
 	else if (nvme_is_write(req->cmd))
 		op_flags = REQ_SYNC | REQ_IDLE;
 
-	bio = bio_alloc(GFP_KERNEL, req->sg_cnt);
+	bio = bio_alloc(GFP_KERNEL, bio_max_segs(req->sg_cnt));
 	bio->bi_end_io = bio_put;
 	bio->bi_opf = req_op(rq) | op_flags;
 
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index f2bd2e207e0b3..b09878674df5e 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -314,10 +314,8 @@ iblock_get_bio(struct se_cmd *cmd, sector_t lba, u32 sg_num, int op,
 	 * Only allocate as many vector entries as the bio code allows us to,
 	 * we'll loop later on until we have handled the whole request.
 	 */
-	if (sg_num > BIO_MAX_PAGES)
-		sg_num = BIO_MAX_PAGES;
-
-	bio = bio_alloc_bioset(GFP_NOIO, sg_num, &ib_dev->ibd_bio_set);
+	bio = bio_alloc_bioset(GFP_NOIO, bio_max_segs(sg_num),
+				&ib_dev->ibd_bio_set);
 	if (!bio) {
 		pr_err("Unable to allocate memory for bio\n");
 		return NULL;
@@ -637,8 +635,7 @@ iblock_alloc_bip(struct se_cmd *cmd, struct bio *bio,
 		return -ENODEV;
 	}
 
-	bip = bio_integrity_alloc(bio, GFP_NOIO,
-			min_t(unsigned int, cmd->t_prot_nents, BIO_MAX_PAGES));
+	bip = bio_integrity_alloc(bio, GFP_NOIO, bio_max_segs(cmd->t_prot_nents));
 	if (IS_ERR(bip)) {
 		pr_err("Unable to allocate bio_integrity_payload\n");
 		return PTR_ERR(bip);
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 4e37fa9b409d5..1b140a08ea597 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -881,7 +881,7 @@ pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 
 			if (!bio) {
 new_bio:
-				nr_vecs = min_t(int, BIO_MAX_PAGES, nr_pages);
+				nr_vecs = bio_max_segs(nr_pages);
 				nr_pages -= nr_vecs;
 				/*
 				 * Calls bio_kmalloc() and sets bio->bi_end_io()
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 147b8f7c719f3..dfee9ca0e946f 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -218,7 +218,7 @@ static void blkdev_bio_end_io_simple(struct bio *bio)
 
 static ssize_t
 __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
-		int nr_pages)
+		unsigned int nr_pages)
 {
 	struct file *file = iocb->ki_filp;
 	struct block_device *bdev = I_BDEV(bdev_file_inode(file));
@@ -352,8 +352,8 @@ static void blkdev_bio_end_io(struct bio *bio)
 	}
 }
 
-static ssize_t
-__blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
+static ssize_t __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
+		unsigned int nr_pages)
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = bdev_file_inode(file);
@@ -483,7 +483,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
 static ssize_t
 blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 {
-	int nr_pages;
+	unsigned int nr_pages;
 
 	nr_pages = iov_iter_npages(iter, BIO_MAX_PAGES + 1);
 	if (!nr_pages)
@@ -491,7 +491,7 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 	if (is_sync_kiocb(iocb) && nr_pages <= BIO_MAX_PAGES)
 		return __blkdev_direct_IO_simple(iocb, iter, nr_pages);
 
-	return __blkdev_direct_IO(iocb, iter, min(nr_pages, BIO_MAX_PAGES));
+	return __blkdev_direct_IO(iocb, iter, bio_max_segs(nr_pages));
 }
 
 static __init int blkdev_init(void)
diff --git a/fs/direct-io.c b/fs/direct-io.c
index d53fa92a1ab65..c6a31d900af1a 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -693,7 +693,7 @@ static inline int dio_new_bio(struct dio *dio, struct dio_submit *sdio,
 	if (ret)
 		goto out;
 	sector = start_sector << (sdio->blkbits - 9);
-	nr_pages = min(sdio->pages_in_io, BIO_MAX_PAGES);
+	nr_pages = bio_max_segs(sdio->pages_in_io);
 	BUG_ON(nr_pages <= 0);
 	dio_bio_alloc(dio, sdio, map_bh->b_bdev, sector, nr_pages);
 	sdio->boundary = 0;
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index ea4f693bee224..f88851c5c250b 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -215,10 +215,8 @@ submit_bio_retry:
 		/* max # of continuous pages */
 		if (nblocks > DIV_ROUND_UP(map.m_plen, PAGE_SIZE))
 			nblocks = DIV_ROUND_UP(map.m_plen, PAGE_SIZE);
-		if (nblocks > BIO_MAX_PAGES)
-			nblocks = BIO_MAX_PAGES;
 
-		bio = bio_alloc(GFP_NOIO, nblocks);
+		bio = bio_alloc(GFP_NOIO, bio_max_segs(nblocks));
 
 		bio->bi_end_io = erofs_readendio;
 		bio_set_dev(bio, sb->s_bdev);
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index f014c5e473a9d..3db9234035053 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -371,8 +371,7 @@ int ext4_mpage_readpages(struct inode *inode,
 			 * bio_alloc will _always_ be able to allocate a bio if
 			 * __GFP_DIRECT_RECLAIM is set, see bio_alloc_bioset().
 			 */
-			bio = bio_alloc(GFP_KERNEL,
-				min_t(int, nr_pages, BIO_MAX_PAGES));
+			bio = bio_alloc(GFP_KERNEL, bio_max_segs(nr_pages));
 			fscrypt_set_bio_crypt_ctx(bio, inode, next_block,
 						  GFP_KERNEL);
 			ext4_set_bio_post_read_ctx(bio, inode, page->index);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index ecbd8a6e839c1..8c250a2f237bf 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -996,8 +996,7 @@ static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
 	unsigned int post_read_steps = 0;
 
 	bio = bio_alloc_bioset(for_write ? GFP_NOIO : GFP_KERNEL,
-			       min_t(int, nr_pages, BIO_MAX_PAGES),
-			       &f2fs_bioset);
+			       bio_max_segs(nr_pages), &f2fs_bioset);
 	if (!bio)
 		return ERR_PTR(-ENOMEM);
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 897b8377ea8bf..e863136081b47 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2817,7 +2817,7 @@ int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
 	sum_entry = &sum->entries[0];
 
 	for (i = 0; i < last_offset; i += nrpages, addr += nrpages) {
-		nrpages = min(last_offset - i, BIO_MAX_PAGES);
+		nrpages = bio_max_segs(last_offset - i);
 
 		/* readahead node pages */
 		f2fs_ra_meta_pages(sbi, addr, nrpages, META_POR, true);
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 10cc7979ce380..167d6fd93253b 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -278,14 +278,14 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
 	if (!is_contig || bio_full(ctx->bio, plen)) {
 		gfp_t gfp = mapping_gfp_constraint(page->mapping, GFP_KERNEL);
 		gfp_t orig_gfp = gfp;
-		int nr_vecs = (length + PAGE_SIZE - 1) >> PAGE_SHIFT;
+		unsigned int nr_vecs = DIV_ROUND_UP(length, PAGE_SIZE);
 
 		if (ctx->bio)
 			submit_bio(ctx->bio);
 
 		if (ctx->rac) /* same as readahead_gfp_mask */
 			gfp |= __GFP_NORETRY | __GFP_NOWARN;
-		ctx->bio = bio_alloc(gfp, min(BIO_MAX_PAGES, nr_vecs));
+		ctx->bio = bio_alloc(gfp, bio_max_segs(nr_vecs));
 		/*
 		 * If the bio_alloc fails, try it again for a single page to
 		 * avoid having to deal with partial page reads.  This emulates
diff --git a/fs/mpage.c b/fs/mpage.c
index 830e6cc2a9e72..961234d687792 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -304,9 +304,7 @@ alloc_new:
 				goto out;
 		}
 		args->bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
-					min_t(int, args->nr_pages,
-					      BIO_MAX_PAGES),
-					gfp);
+					bio_max_segs(args->nr_pages), gfp);
 		if (args->bio == NULL)
 			goto confused;
 	}
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
index 08108b6d2fa10..feab9fdc022fb 100644
--- a/fs/nfs/blocklayout/blocklayout.c
+++ b/fs/nfs/blocklayout/blocklayout.c
@@ -115,13 +115,13 @@ bl_submit_bio(struct bio *bio)
 	return NULL;
 }
 
-static struct bio *
-bl_alloc_init_bio(int npg, struct block_device *bdev, sector_t disk_sector,
+static struct bio *bl_alloc_init_bio(unsigned int npg,
+		struct block_device *bdev, sector_t disk_sector,
 		bio_end_io_t end_io, struct parallel_io *par)
 {
 	struct bio *bio;
 
-	npg = min(npg, BIO_MAX_PAGES);
+	npg = bio_max_segs(npg);
 	bio = bio_alloc(GFP_NOIO, npg);
 	if (!bio && (current->flags & PF_MEMALLOC)) {
 		while (!bio && (npg /= 2))
diff --git a/fs/xfs/xfs_bio_io.c b/fs/xfs/xfs_bio_io.c
index e2148f2d5d6bc..17f36db2f7928 100644
--- a/fs/xfs/xfs_bio_io.c
+++ b/fs/xfs/xfs_bio_io.c
@@ -6,7 +6,7 @@
 
 static inline unsigned int bio_max_vecs(unsigned int count)
 {
-	return min_t(unsigned, howmany(count, PAGE_SIZE), BIO_MAX_PAGES);
+	return bio_max_segs(howmany(count, PAGE_SIZE));
 }
 
 int
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 4e4cf91f4f9fe..ad8bb66786816 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1480,7 +1480,7 @@ xfs_buf_ioapply_map(
 	int		op)
 {
 	int		page_index;
-	int		total_nr_pages = bp->b_page_count;
+	unsigned int	total_nr_pages = bp->b_page_count;
 	int		nr_pages;
 	struct bio	*bio;
 	sector_t	sector =  bp->b_maps[map].bm_bn;
@@ -1505,7 +1505,7 @@ xfs_buf_ioapply_map(
 
 next_chunk:
 	atomic_inc(&bp->b_io_remaining);
-	nr_pages = min(total_nr_pages, BIO_MAX_PAGES);
+	nr_pages = bio_max_segs(total_nr_pages);
 
 	bio = bio_alloc(GFP_NOIO, nr_pages);
 	bio_set_dev(bio, bp->b_target->bt_bdev);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index c6d7653829264..469369877d919 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -19,7 +19,12 @@
 #define BIO_BUG_ON
 #endif
 
-#define BIO_MAX_PAGES		256
+#define BIO_MAX_PAGES		256U
+
+static inline unsigned int bio_max_segs(unsigned int nr_segs)
+{
+	return min(nr_segs, BIO_MAX_PAGES);
+}
 
 #define bio_prio(bio)			(bio)->bi_ioprio
 #define bio_set_prio(bio, prio)		((bio)->bi_ioprio = prio)
-- 
GitLab


From 1571cef7ef499539bb882022919ce1e8ca7d379d Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Sat, 6 Mar 2021 12:04:38 +0800
Subject: [PATCH 0011/4878] erofs: fix bio->bi_max_vecs behavior change

Martin reported an issue that directory read could be hung on the
latest -rc kernel with some certain image. The root cause is that
commit baa2c7c97153 ("block: set .bi_max_vecs as actual allocated
vector number") changes .bi_max_vecs behavior. bio->bi_max_vecs
is set as actual allocated vector number rather than the requested
number now.

Let's avoid using .bi_max_vecs completely instead.

Link: https://lore.kernel.org/r/20210306040438.8084-1-hsiangkao@aol.com
Reported-by: Martin DEVERA <devik@eaxlabs.cz>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
[ Gao Xiang: note that <= 5.11 kernels are not impacted. ]
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/data.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index f88851c5c250b..1249e74b3bf04 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -129,6 +129,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio,
 					      struct page *page,
 					      erofs_off_t *last_block,
 					      unsigned int nblocks,
+					      unsigned int *eblks,
 					      bool ra)
 {
 	struct inode *const inode = mapping->host;
@@ -145,8 +146,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio,
 
 	/* note that for readpage case, bio also equals to NULL */
 	if (bio &&
-	    /* not continuous */
-	    *last_block + 1 != current_block) {
+	    (*last_block + 1 != current_block || !*eblks)) {
 submit_bio_retry:
 		submit_bio(bio);
 		bio = NULL;
@@ -216,7 +216,8 @@ submit_bio_retry:
 		if (nblocks > DIV_ROUND_UP(map.m_plen, PAGE_SIZE))
 			nblocks = DIV_ROUND_UP(map.m_plen, PAGE_SIZE);
 
-		bio = bio_alloc(GFP_NOIO, bio_max_segs(nblocks));
+		*eblks = bio_max_segs(nblocks);
+		bio = bio_alloc(GFP_NOIO, *eblks);
 
 		bio->bi_end_io = erofs_readendio;
 		bio_set_dev(bio, sb->s_bdev);
@@ -229,16 +230,8 @@ submit_bio_retry:
 	/* out of the extent or bio is full */
 	if (err < PAGE_SIZE)
 		goto submit_bio_retry;
-
+	--*eblks;
 	*last_block = current_block;
-
-	/* shift in advance in case of it followed by too many gaps */
-	if (bio->bi_iter.bi_size >= bio->bi_max_vecs * PAGE_SIZE) {
-		/* err should reassign to 0 after submitting */
-		err = 0;
-		goto submit_bio_out;
-	}
-
 	return bio;
 
 err_out:
@@ -252,7 +245,6 @@ has_updated:
 
 	/* if updated manually, continuous pages has a gap */
 	if (bio)
-submit_bio_out:
 		submit_bio(bio);
 	return err ? ERR_PTR(err) : NULL;
 }
@@ -264,23 +256,26 @@ submit_bio_out:
 static int erofs_raw_access_readpage(struct file *file, struct page *page)
 {
 	erofs_off_t last_block;
+	unsigned int eblks;
 	struct bio *bio;
 
 	trace_erofs_readpage(page, true);
 
 	bio = erofs_read_raw_page(NULL, page->mapping,
-				  page, &last_block, 1, false);
+				  page, &last_block, 1, &eblks, false);
 
 	if (IS_ERR(bio))
 		return PTR_ERR(bio);
 
-	DBG_BUGON(bio);	/* since we have only one bio -- must be NULL */
+	if (bio)
+		submit_bio(bio);
 	return 0;
 }
 
 static void erofs_raw_access_readahead(struct readahead_control *rac)
 {
 	erofs_off_t last_block;
+	unsigned int eblks;
 	struct bio *bio = NULL;
 	struct page *page;
 
@@ -291,7 +286,7 @@ static void erofs_raw_access_readahead(struct readahead_control *rac)
 		prefetchw(&page->flags);
 
 		bio = erofs_read_raw_page(bio, rac->mapping, page, &last_block,
-				readahead_count(rac), true);
+				readahead_count(rac), &eblks, true);
 
 		/* all the page errors are ignored when readahead */
 		if (IS_ERR(bio)) {
@@ -305,7 +300,6 @@ static void erofs_raw_access_readahead(struct readahead_control *rac)
 		put_page(page);
 	}
 
-	/* the rare case (end in gaps) */
 	if (bio)
 		submit_bio(bio);
 }
-- 
GitLab


From e901d97d09bf82c710fdff9d12cdfee1cdd30310 Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Tue, 16 Mar 2021 11:15:14 +0800
Subject: [PATCH 0012/4878] erofs: avoid memory allocation failure during
 rolling decompression

Currently, err would be treated as io error. Therefore, it'd be
better to ensure memory allocation during rolling decompression
to avoid such io error.

In the long term, we might consider adding another !Uptodate case
for such case.

Link: https://lore.kernel.org/r/20210316031515.90954-1-huangjianan@oppo.com
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 1cb1ffd105698..34e73ff76f89e 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -73,9 +73,8 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 			victim = availables[--top];
 			get_page(victim);
 		} else {
-			victim = erofs_allocpage(pagepool, GFP_KERNEL);
-			if (!victim)
-				return -ENOMEM;
+			victim = erofs_allocpage(pagepool,
+						 GFP_KERNEL | __GFP_NOFAIL);
 			set_page_private(victim, Z_EROFS_SHORTLIVED_PAGE);
 		}
 		rq->out[i] = victim;
-- 
GitLab


From 0881930cda47d74be759d17b7609f279d716016d Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Wed, 17 Mar 2021 11:54:47 +0800
Subject: [PATCH 0013/4878] erofs: use workqueue decompression for atomic
 contexts only

z_erofs_decompressqueue_endio may not be executed in the atomic
context, for example, when dm-verity is turned on. In this scenario,
data can be decompressed directly to get rid of additional kworker
scheduling overhead.

Link: https://lore.kernel.org/r/20210317035448.13921-2-huangjianan@oppo.com
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zdata.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 6cb356c4217b2..cf2d28582c142 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -706,6 +706,7 @@ err_out:
 	goto out;
 }
 
+static void z_erofs_decompressqueue_work(struct work_struct *work);
 static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,
 				       bool sync, int bios)
 {
@@ -720,8 +721,14 @@ static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,
 		return;
 	}
 
-	if (!atomic_add_return(bios, &io->pending_bios))
+	if (atomic_add_return(bios, &io->pending_bios))
+		return;
+	/* Use workqueue decompression for atomic contexts only */
+	if (in_atomic() || irqs_disabled()) {
 		queue_work(z_erofs_workqueue, &io->u.work);
+		return;
+	}
+	z_erofs_decompressqueue_work(&io->u.work);
 }
 
 static bool z_erofs_page_is_invalidated(struct page *page)
-- 
GitLab


From 100de3f9d997245d61af24fa6cc57f5525e24743 Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Wed, 17 Mar 2021 11:54:48 +0800
Subject: [PATCH 0014/4878] erofs: use sync decompression for atomic contexts
 only

Sync decompression was introduced to get rid of additional kworker
scheduling overhead. But there is no such overhead in non-atomic
contexts. Therefore, it should be better to turn off sync decompression
to avoid the current thread waiting in z_erofs_runqueue.

Link: https://lore.kernel.org/r/20210317035448.13921-3-huangjianan@oppo.com
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/internal.h | 2 ++
 fs/erofs/super.c    | 1 +
 fs/erofs/zdata.c    | 8 ++++++--
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 67a7ec9456866..fbc4040715be4 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -50,6 +50,8 @@ struct erofs_fs_context {
 #ifdef CONFIG_EROFS_FS_ZIP
 	/* current strategy of how to use managed cache */
 	unsigned char cache_strategy;
+	/* strategy of sync decompression (false - auto, true - force on) */
+	bool readahead_sync_decompress;
 
 	/* threshold for decompression synchronously */
 	unsigned int max_sync_decompress_pages;
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index d5a6b9b888a56..0445d09b63310 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -200,6 +200,7 @@ static void erofs_default_options(struct erofs_fs_context *ctx)
 #ifdef CONFIG_EROFS_FS_ZIP
 	ctx->cache_strategy = EROFS_ZIP_CACHE_READAROUND;
 	ctx->max_sync_decompress_pages = 3;
+	ctx->readahead_sync_decompress = false;
 #endif
 #ifdef CONFIG_EROFS_FS_XATTR
 	set_opt(ctx, XATTR_USER);
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index cf2d28582c142..25a0c4890d0a3 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -710,6 +710,8 @@ static void z_erofs_decompressqueue_work(struct work_struct *work);
 static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,
 				       bool sync, int bios)
 {
+	struct erofs_sb_info *const sbi = EROFS_SB(io->sb);
+
 	/* wake up the caller thread for sync decompression */
 	if (sync) {
 		unsigned long flags;
@@ -723,9 +725,10 @@ static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,
 
 	if (atomic_add_return(bios, &io->pending_bios))
 		return;
-	/* Use workqueue decompression for atomic contexts only */
+	/* Use workqueue and sync decompression for atomic contexts only */
 	if (in_atomic() || irqs_disabled()) {
 		queue_work(z_erofs_workqueue, &io->u.work);
+		sbi->ctx.readahead_sync_decompress = true;
 		return;
 	}
 	z_erofs_decompressqueue_work(&io->u.work);
@@ -1340,7 +1343,8 @@ static void z_erofs_readahead(struct readahead_control *rac)
 	struct erofs_sb_info *const sbi = EROFS_I_SB(inode);
 
 	unsigned int nr_pages = readahead_count(rac);
-	bool sync = (nr_pages <= sbi->ctx.max_sync_decompress_pages);
+	bool sync = (sbi->ctx.readahead_sync_decompress &&
+			nr_pages <= sbi->ctx.max_sync_decompress_pages);
 	struct z_erofs_decompress_frontend f = DECOMPRESS_FRONTEND_INIT(inode);
 	struct page *page, *head = NULL;
 	LIST_HEAD(pagepool);
-- 
GitLab


From 06c42f636ea8782485729f8d3262d847f4771e71 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Mon, 22 Mar 2021 02:32:27 +0800
Subject: [PATCH 0015/4878] erofs: complete a missing case for inplace I/O

Add a missing case which could cause unnecessary page allocation but
not directly use inplace I/O instead, which increases runtime extra
memory footprint.

The detail is, considering an online file-backed page, the right half
of the page is chosen to be cached (e.g. the end page of a readahead
request) and some of its data doesn't exist in managed cache, so the
pcluster will be definitely kept in the submission chain. (IOWs, it
cannot be decompressed without I/O, e.g., due to the bypass queue).

Currently, DELAYEDALLOC/TRYALLOC cases can be downgraded as NOINPLACE,
and stop online pages from inplace I/O. After this patch, unneeded page
allocations won't be observed in pickup_page_for_submission() then.

Link: https://lore.kernel.org/r/20210321183227.5182-1-hsiangkao@aol.com
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zdata.c | 44 +++++++++++++++++++++++++++++---------------
 1 file changed, 29 insertions(+), 15 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 25a0c4890d0a3..13cf04a9812ba 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -104,6 +104,12 @@ enum z_erofs_collectmode {
 	 * |_______PRIMARY_FOLLOWED_______|________PRIMARY_HOOKED___________|
 	 */
 	COLLECT_PRIMARY_HOOKED,
+	/*
+	 * a weak form of COLLECT_PRIMARY_FOLLOWED, the difference is that it
+	 * could be dispatched into bypass queue later due to uptodated managed
+	 * pages. All related online pages cannot be reused for inplace I/O (or
+	 * pagevec) since it can be directly decoded without I/O submission.
+	 */
 	COLLECT_PRIMARY_FOLLOWED_NOINPLACE,
 	/*
 	 * The current collection has been linked with the owned chain, and
@@ -186,21 +192,25 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 
 		if (page) {
 			t = tag_compressed_page_justfound(page);
-		} else if (type == DELAYEDALLOC) {
-			t = tagptr_init(compressed_page_t, PAGE_UNALLOCATED);
-		} else if (type == TRYALLOC) {
-			newpage = erofs_allocpage(pagepool, gfp);
-			if (!newpage)
-				goto dontalloc;
-
-			set_page_private(newpage, Z_EROFS_PREALLOCATED_PAGE);
-			t = tag_compressed_page_justfound(newpage);
-		} else {	/* DONTALLOC */
-dontalloc:
-			if (standalone)
-				clt->compressedpages = pages;
+		} else {
+			/* I/O is needed, no possible to decompress directly */
 			standalone = false;
-			continue;
+			switch (type) {
+			case DELAYEDALLOC:
+				t = tagptr_init(compressed_page_t,
+						PAGE_UNALLOCATED);
+				break;
+			case TRYALLOC:
+				newpage = erofs_allocpage(pagepool, gfp);
+				if (!newpage)
+					continue;
+				set_page_private(newpage,
+						 Z_EROFS_PREALLOCATED_PAGE);
+				t = tag_compressed_page_justfound(newpage);
+				break;
+			default:        /* DONTALLOC */
+				continue;
+			}
 		}
 
 		if (!cmpxchg_relaxed(pages, NULL, tagptr_cast_ptr(t)))
@@ -214,7 +224,11 @@ dontalloc:
 		}
 	}
 
-	if (standalone)		/* downgrade to PRIMARY_FOLLOWED_NOINPLACE */
+	/*
+	 * don't do inplace I/O if all compressed pages are available in
+	 * managed cache since it can be moved to the bypass queue instead.
+	 */
+	if (standalone)
 		clt->mode = COLLECT_PRIMARY_FOLLOWED_NOINPLACE;
 }
 
-- 
GitLab


From 90130bc0731f60b7890c355324525c694893dcab Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Thu, 25 Mar 2021 15:10:08 +0800
Subject: [PATCH 0016/4878] erofs: don't use erofs_map_blocks() any more

Currently, erofs_map_blocks() will be called only from
erofs_{bmap, read_raw_page} which are all for uncompressed files.
So, the compression branch in erofs_map_blocks() is pointless. Let's
remove it and use erofs_map_blocks_flatmode() directly. Also update
related comments.

Link: https://lore.kernel.org/r/20210325071008.573-1-zbestahu@gmail.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/data.c     | 19 ++-----------------
 fs/erofs/internal.h |  6 ++----
 2 files changed, 4 insertions(+), 21 deletions(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 1249e74b3bf04..ebac756cb2a38 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -109,21 +109,6 @@ err_out:
 	return err;
 }
 
-int erofs_map_blocks(struct inode *inode,
-		     struct erofs_map_blocks *map, int flags)
-{
-	if (erofs_inode_is_data_compressed(EROFS_I(inode)->datalayout)) {
-		int err = z_erofs_map_blocks_iter(inode, map, flags);
-
-		if (map->mpage) {
-			put_page(map->mpage);
-			map->mpage = NULL;
-		}
-		return err;
-	}
-	return erofs_map_blocks_flatmode(inode, map, flags);
-}
-
 static inline struct bio *erofs_read_raw_page(struct bio *bio,
 					      struct address_space *mapping,
 					      struct page *page,
@@ -159,7 +144,7 @@ submit_bio_retry:
 		erofs_blk_t blknr;
 		unsigned int blkoff;
 
-		err = erofs_map_blocks(inode, &map, EROFS_GET_BLOCKS_RAW);
+		err = erofs_map_blocks_flatmode(inode, &map, EROFS_GET_BLOCKS_RAW);
 		if (err)
 			goto err_out;
 
@@ -318,7 +303,7 @@ static sector_t erofs_bmap(struct address_space *mapping, sector_t block)
 			return 0;
 	}
 
-	if (!erofs_map_blocks(inode, &map, EROFS_GET_BLOCKS_RAW))
+	if (!erofs_map_blocks_flatmode(inode, &map, EROFS_GET_BLOCKS_RAW))
 		return erofs_blknr(map.m_pa);
 
 	return 0;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index fbc4040715be4..f08057859d570 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -289,7 +289,7 @@ extern const struct address_space_operations erofs_raw_access_aops;
 extern const struct address_space_operations z_erofs_aops;
 
 /*
- * Logical to physical block mapping, used by erofs_map_blocks()
+ * Logical to physical block mapping
  *
  * Different with other file systems, it is used for 2 access modes:
  *
@@ -336,7 +336,7 @@ struct erofs_map_blocks {
 	struct page *mpage;
 };
 
-/* Flags used by erofs_map_blocks() */
+/* Flags used by erofs_map_blocks_flatmode() */
 #define EROFS_GET_BLOCKS_RAW    0x0001
 
 /* zmap.c */
@@ -358,8 +358,6 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode,
 /* data.c */
 struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr);
 
-int erofs_map_blocks(struct inode *, struct erofs_map_blocks *, int);
-
 /* inode.c */
 static inline unsigned long erofs_inode_hash(erofs_nid_t nid)
 {
-- 
GitLab


From aed227860d5a7b48a1539c6a58d96ab1cccbc4b4 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Mon, 29 Mar 2021 08:36:14 +0800
Subject: [PATCH 0017/4878] erofs: add unsupported inode i_format check

If any unknown i_format fields are set (may be of some new incompat
inode features), mark such inode as unsupported.

Just in case of any new incompat i_format fields added in the future.

Link: https://lore.kernel.org/r/20210329003614.6583-1-hsiangkao@aol.com
Fixes: 431339ba9042 ("staging: erofs: add inode operations")
Cc: <stable@vger.kernel.org> # 4.19+
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/erofs_fs.h | 3 +++
 fs/erofs/inode.c    | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 9ad1615f44743..e8d04d808fa62 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -75,6 +75,9 @@ static inline bool erofs_inode_is_data_compressed(unsigned int datamode)
 #define EROFS_I_VERSION_BIT             0
 #define EROFS_I_DATALAYOUT_BIT          1
 
+#define EROFS_I_ALL	\
+	((1 << (EROFS_I_DATALAYOUT_BIT + EROFS_I_DATALAYOUT_BITS)) - 1)
+
 /* 32-byte reduced form of an ondisk inode */
 struct erofs_inode_compact {
 	__le16 i_format;	/* inode format hints */
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 3e21c0e8adae7..0a94a52a119fb 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -44,6 +44,13 @@ static struct page *erofs_read_inode(struct inode *inode,
 	dic = page_address(page) + *ofs;
 	ifmt = le16_to_cpu(dic->i_format);
 
+	if (ifmt & ~EROFS_I_ALL) {
+		erofs_err(inode->i_sb, "unsupported i_format %u of nid %llu",
+			  ifmt, vi->nid);
+		err = -EOPNOTSUPP;
+		goto err_out;
+	}
+
 	vi->datalayout = erofs_inode_datalayout(ifmt);
 	if (vi->datalayout >= EROFS_INODE_DATALAYOUT_MAX) {
 		erofs_err(inode->i_sb, "unsupported datalayout %u of nid %llu",
-- 
GitLab


From 5cf3a4cd72eb8e9793208fda38a0b03fab2003d0 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Mon, 29 Mar 2021 09:23:05 +0800
Subject: [PATCH 0018/4878] erofs: introduce erofs_sb_has_xxx() helpers

Introduce erofs_sb_has_xxx() to make long checks short, especially
for later big pcluster & LZMA features.

Link: https://lore.kernel.org/r/20210329012308.28743-2-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c | 3 +--
 fs/erofs/internal.h     | 9 +++++++++
 fs/erofs/super.c        | 2 +-
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 34e73ff76f89e..80e8871aef71c 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -124,8 +124,7 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 	support_0padding = false;
 
 	/* decompression inplace is only safe when 0padding is enabled */
-	if (EROFS_SB(rq->sb)->feature_incompat &
-	    EROFS_FEATURE_INCOMPAT_LZ4_0PADDING) {
+	if (erofs_sb_has_lz4_0padding(EROFS_SB(rq->sb))) {
 		support_0padding = true;
 
 		while (!src[inputmargin & ~PAGE_MASK])
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index f08057859d570..5d03023481795 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -218,6 +218,15 @@ static inline erofs_off_t iloc(struct erofs_sb_info *sbi, erofs_nid_t nid)
 	return blknr_to_addr(sbi->meta_blkaddr) + (nid << sbi->islotbits);
 }
 
+#define EROFS_FEATURE_FUNCS(name, compat, feature) \
+static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \
+{ \
+	return sbi->feature_##compat & EROFS_FEATURE_##feature; \
+}
+
+EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING)
+EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM)
+
 /* atomic flag definitions */
 #define EROFS_I_EA_INITED_BIT	0
 #define EROFS_I_Z_INITED_BIT	1
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 0445d09b63310..991b99eaf22a8 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -149,7 +149,7 @@ static int erofs_read_superblock(struct super_block *sb)
 	}
 
 	sbi->feature_compat = le32_to_cpu(dsb->feature_compat);
-	if (sbi->feature_compat & EROFS_FEATURE_COMPAT_SB_CHKSUM) {
+	if (erofs_sb_has_sb_chksum(sbi)) {
 		ret = erofs_superblock_csum_verify(sb, data);
 		if (ret)
 			goto out;
-- 
GitLab


From 69fbc0634e2c555b40f2435fcafbc168b79271ca Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Mon, 29 Mar 2021 09:23:06 +0800
Subject: [PATCH 0019/4878] erofs: support adjust lz4 history window size

lz4 uses LZ4_DISTANCE_MAX to record history preservation. When
using rolling decompression, a block with a higher compression
ratio will cause a larger memory allocation (up to 64k). It may
cause a large resource burden in extreme cases on devices with
small memory and a large number of concurrent IOs. So appropriately
reducing this value can improve performance.

Decreasing this value will reduce the compression ratio (except
when input_size <LZ4_DISTANCE_MAX). But considering that erofs
currently only supports 4k output, reducing this value will not
significantly reduce the compression benefits.

The maximum value of LZ4_DISTANCE_MAX defined by lz4 is 64k, and
we can only reduce this value. For the old kernel, it just can't
reduce the memory allocation during rolling decompression without
affecting the decompression result.

Link: https://lore.kernel.org/r/20210329012308.28743-3-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
[ Gao Xiang: introduce struct erofs_sb_lz4_info for configurations. ]
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c | 21 +++++++++++++++++----
 fs/erofs/erofs_fs.h     |  4 +++-
 fs/erofs/internal.h     | 19 +++++++++++++++++++
 fs/erofs/super.c        |  4 +++-
 4 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 80e8871aef71c..93411e9df9b67 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -28,6 +28,17 @@ struct z_erofs_decompressor {
 	char *name;
 };
 
+int z_erofs_load_lz4_config(struct super_block *sb,
+			    struct erofs_super_block *dsb)
+{
+	u16 distance = le16_to_cpu(dsb->lz4_max_distance);
+
+	EROFS_SB(sb)->lz4.max_distance_pages = distance ?
+					DIV_ROUND_UP(distance, PAGE_SIZE) + 1 :
+					LZ4_MAX_DISTANCE_PAGES;
+	return 0;
+}
+
 static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 					 struct list_head *pagepool)
 {
@@ -36,6 +47,8 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 	struct page *availables[LZ4_MAX_DISTANCE_PAGES] = { NULL };
 	unsigned long bounced[DIV_ROUND_UP(LZ4_MAX_DISTANCE_PAGES,
 					   BITS_PER_LONG)] = { 0 };
+	unsigned int lz4_max_distance_pages =
+				EROFS_SB(rq->sb)->lz4.max_distance_pages;
 	void *kaddr = NULL;
 	unsigned int i, j, top;
 
@@ -44,14 +57,14 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 		struct page *const page = rq->out[i];
 		struct page *victim;
 
-		if (j >= LZ4_MAX_DISTANCE_PAGES)
+		if (j >= lz4_max_distance_pages)
 			j = 0;
 
 		/* 'valid' bounced can only be tested after a complete round */
 		if (test_bit(j, bounced)) {
-			DBG_BUGON(i < LZ4_MAX_DISTANCE_PAGES);
-			DBG_BUGON(top >= LZ4_MAX_DISTANCE_PAGES);
-			availables[top++] = rq->out[i - LZ4_MAX_DISTANCE_PAGES];
+			DBG_BUGON(i < lz4_max_distance_pages);
+			DBG_BUGON(top >= lz4_max_distance_pages);
+			availables[top++] = rq->out[i - lz4_max_distance_pages];
 		}
 
 		if (page) {
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index e8d04d808fa62..dc7cc79410dfd 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -39,7 +39,9 @@ struct erofs_super_block {
 	__u8 uuid[16];          /* 128-bit uuid for volume */
 	__u8 volume_name[16];   /* volume name */
 	__le32 feature_incompat;
-	__u8 reserved2[44];
+	/* customized lz4 sliding window size instead of 64k by default */
+	__le16 lz4_max_distance;
+	__u8 reserved2[42];
 };
 
 /*
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 5d03023481795..9b01edc938cba 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -59,6 +59,12 @@ struct erofs_fs_context {
 	unsigned int mount_opt;
 };
 
+/* all filesystem-wide lz4 configurations */
+struct erofs_sb_lz4_info {
+	/* # of pages needed for EROFS lz4 rolling decompression */
+	u16 max_distance_pages;
+};
+
 struct erofs_sb_info {
 #ifdef CONFIG_EROFS_FS_ZIP
 	/* list for all registered superblocks, mainly for shrinker */
@@ -72,6 +78,8 @@ struct erofs_sb_info {
 
 	/* pseudo inode to manage cached pages */
 	struct inode *managed_cache;
+
+	struct erofs_sb_lz4_info lz4;
 #endif	/* CONFIG_EROFS_FS_ZIP */
 	u32 blocks;
 	u32 meta_blkaddr;
@@ -429,6 +437,8 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 				       struct erofs_workgroup *egrp);
 int erofs_try_to_free_cached_page(struct address_space *mapping,
 				  struct page *page);
+int z_erofs_load_lz4_config(struct super_block *sb,
+			    struct erofs_super_block *dsb);
 #else
 static inline void erofs_shrinker_register(struct super_block *sb) {}
 static inline void erofs_shrinker_unregister(struct super_block *sb) {}
@@ -436,6 +446,15 @@ static inline int erofs_init_shrinker(void) { return 0; }
 static inline void erofs_exit_shrinker(void) {}
 static inline int z_erofs_init_zip_subsystem(void) { return 0; }
 static inline void z_erofs_exit_zip_subsystem(void) {}
+static inline int z_erofs_load_lz4_config(struct super_block *sb,
+				struct erofs_super_block *dsb)
+{
+	if (dsb->lz4_max_distance) {
+		erofs_err(sb, "lz4 algorithm isn't enabled");
+		return -EINVAL;
+	}
+	return 0;
+}
 #endif	/* !CONFIG_EROFS_FS_ZIP */
 
 #define EFSCORRUPTED    EUCLEAN         /* Filesystem is corrupted */
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 991b99eaf22a8..3212e4f73f852 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -187,7 +187,9 @@ static int erofs_read_superblock(struct super_block *sb)
 		ret = -EFSCORRUPTED;
 		goto out;
 	}
-	ret = 0;
+
+	/* parse on-disk compression configurations */
+	ret = z_erofs_load_lz4_config(sb, dsb);
 out:
 	kunmap(page);
 	put_page(page);
-- 
GitLab


From 8c8cfb8c3ca45874e36aa2a090ad772635a836be Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Mon, 29 Mar 2021 09:23:07 +0800
Subject: [PATCH 0020/4878] erofs: introduce on-disk lz4 fs configurations

Introduce z_erofs_lz4_cfgs to store all lz4 configurations.
Currently it's only max_distance, but will be used for new
features later.

Link: https://lore.kernel.org/r/20210329012308.28743-4-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c | 15 +++++++++++++--
 fs/erofs/erofs_fs.h     |  6 ++++++
 fs/erofs/internal.h     |  8 +++++---
 fs/erofs/super.c        |  2 +-
 4 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 93411e9df9b67..97538ff24a191 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -29,9 +29,20 @@ struct z_erofs_decompressor {
 };
 
 int z_erofs_load_lz4_config(struct super_block *sb,
-			    struct erofs_super_block *dsb)
+			    struct erofs_super_block *dsb,
+			    struct z_erofs_lz4_cfgs *lz4, int size)
 {
-	u16 distance = le16_to_cpu(dsb->lz4_max_distance);
+	u16 distance;
+
+	if (lz4) {
+		if (size < sizeof(struct z_erofs_lz4_cfgs)) {
+			erofs_err(sb, "invalid lz4 cfgs, size=%u", size);
+			return -EINVAL;
+		}
+		distance = le16_to_cpu(lz4->max_distance);
+	} else {
+		distance = le16_to_cpu(dsb->lz4_max_distance);
+	}
 
 	EROFS_SB(sb)->lz4.max_distance_pages = distance ?
 					DIV_ROUND_UP(distance, PAGE_SIZE) + 1 :
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index dc7cc79410dfd..700597e9c810d 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -200,6 +200,12 @@ enum {
 	Z_EROFS_COMPRESSION_MAX
 };
 
+/* 14 bytes (+ length field = 16 bytes) */
+struct z_erofs_lz4_cfgs {
+	__le16 max_distance;
+	u8 reserved[12];
+} __packed;
+
 /*
  * bit 0 : COMPACTED_2B indexes (0 - off; 1 - on)
  *  e.g. for 4k logical cluster size,      4B        if compacted 2B is off;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 9b01edc938cba..5ab4ffc2389e5 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -438,7 +438,8 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 int erofs_try_to_free_cached_page(struct address_space *mapping,
 				  struct page *page);
 int z_erofs_load_lz4_config(struct super_block *sb,
-			    struct erofs_super_block *dsb);
+			    struct erofs_super_block *dsb,
+			    struct z_erofs_lz4_cfgs *lz4, int len);
 #else
 static inline void erofs_shrinker_register(struct super_block *sb) {}
 static inline void erofs_shrinker_unregister(struct super_block *sb) {}
@@ -447,9 +448,10 @@ static inline void erofs_exit_shrinker(void) {}
 static inline int z_erofs_init_zip_subsystem(void) { return 0; }
 static inline void z_erofs_exit_zip_subsystem(void) {}
 static inline int z_erofs_load_lz4_config(struct super_block *sb,
-				struct erofs_super_block *dsb)
+				  struct erofs_super_block *dsb,
+				  struct z_erofs_lz4_cfgs *lz4, int len)
 {
-	if (dsb->lz4_max_distance) {
+	if (lz4 || dsb->lz4_max_distance) {
 		erofs_err(sb, "lz4 algorithm isn't enabled");
 		return -EINVAL;
 	}
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 3212e4f73f852..1ca8da3f21254 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -189,7 +189,7 @@ static int erofs_read_superblock(struct super_block *sb)
 	}
 
 	/* parse on-disk compression configurations */
-	ret = z_erofs_load_lz4_config(sb, dsb);
+	ret = z_erofs_load_lz4_config(sb, dsb, NULL, 0);
 out:
 	kunmap(page);
 	put_page(page);
-- 
GitLab


From ad120342b6f95a3a732ec333906689e361eadb14 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Mon, 29 Mar 2021 18:00:12 +0800
Subject: [PATCH 0021/4878] erofs: add on-disk compression configurations

Add a bitmap for available compression algorithms and a variable-sized
on-disk table for compression options in preparation for upcoming big
pcluster and LZMA algorithm, which follows the end of super block.

To parse the compression options, the bitmap is scanned one by one.
For each available algorithm, there is data followed by 2-byte `length'
correspondingly (it's enough for most cases, or entire fs blocks should
be used.)

With such available algorithm bitmap, kernel itself can also refuse to
mount such filesystem if any unsupported compression algorithm exists.

Note that COMPR_CFGS feature will be enabled with BIG_PCLUSTER.

Link: https://lore.kernel.org/r/20210329100012.12980-1-hsiangkao@aol.com
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c |   2 +-
 fs/erofs/erofs_fs.h     |  16 +++--
 fs/erofs/internal.h     |   5 +-
 fs/erofs/super.c        | 141 +++++++++++++++++++++++++++++++++++++++-
 4 files changed, 157 insertions(+), 7 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 97538ff24a191..27aa6a99b3716 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -41,7 +41,7 @@ int z_erofs_load_lz4_config(struct super_block *sb,
 		}
 		distance = le16_to_cpu(lz4->max_distance);
 	} else {
-		distance = le16_to_cpu(dsb->lz4_max_distance);
+		distance = le16_to_cpu(dsb->u1.lz4_max_distance);
 	}
 
 	EROFS_SB(sb)->lz4.max_distance_pages = distance ?
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 700597e9c810d..17bc0b5f117dd 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -18,15 +18,18 @@
  * be incompatible with this kernel version.
  */
 #define EROFS_FEATURE_INCOMPAT_LZ4_0PADDING	0x00000001
+#define EROFS_FEATURE_INCOMPAT_COMPR_CFGS	0x00000002
 #define EROFS_ALL_FEATURE_INCOMPAT		EROFS_FEATURE_INCOMPAT_LZ4_0PADDING
 
-/* 128-byte erofs on-disk super block */
+#define EROFS_SB_EXTSLOT_SIZE	16
+
+/* erofs on-disk super block (currently 128 bytes) */
 struct erofs_super_block {
 	__le32 magic;           /* file system magic number */
 	__le32 checksum;        /* crc32c(super_block) */
 	__le32 feature_compat;
 	__u8 blkszbits;         /* support block_size == PAGE_SIZE only */
-	__u8 reserved;
+	__u8 sb_extslots;	/* superblock size = 128 + sb_extslots * 16 */
 
 	__le16 root_nid;	/* nid of root directory */
 	__le64 inos;            /* total valid ino # (== f_files - f_favail) */
@@ -39,8 +42,12 @@ struct erofs_super_block {
 	__u8 uuid[16];          /* 128-bit uuid for volume */
 	__u8 volume_name[16];   /* volume name */
 	__le32 feature_incompat;
-	/* customized lz4 sliding window size instead of 64k by default */
-	__le16 lz4_max_distance;
+	union {
+		/* bitmap for available compression algorithms */
+		__le16 available_compr_algs;
+		/* customized sliding window size instead of 64k by default */
+		__le16 lz4_max_distance;
+	} __packed u1;
 	__u8 reserved2[42];
 };
 
@@ -199,6 +206,7 @@ enum {
 	Z_EROFS_COMPRESSION_LZ4	= 0,
 	Z_EROFS_COMPRESSION_MAX
 };
+#define Z_EROFS_ALL_COMPR_ALGS		(1 << (Z_EROFS_COMPRESSION_MAX - 1))
 
 /* 14 bytes (+ length field = 16 bytes) */
 struct z_erofs_lz4_cfgs {
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 5ab4ffc2389e5..ad7fea371325b 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -75,6 +75,7 @@ struct erofs_sb_info {
 	struct xarray managed_pslots;
 
 	unsigned int shrinker_run_no;
+	u16 available_compr_algs;
 
 	/* pseudo inode to manage cached pages */
 	struct inode *managed_cache;
@@ -90,6 +91,7 @@ struct erofs_sb_info {
 	/* inode slot unit size in bit shift */
 	unsigned char islotbits;
 
+	u32 sb_size;			/* total superblock size */
 	u32 build_time_nsec;
 	u64 build_time;
 
@@ -233,6 +235,7 @@ static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \
 }
 
 EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING)
+EROFS_FEATURE_FUNCS(compr_cfgs, incompat, INCOMPAT_COMPR_CFGS)
 EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM)
 
 /* atomic flag definitions */
@@ -451,7 +454,7 @@ static inline int z_erofs_load_lz4_config(struct super_block *sb,
 				  struct erofs_super_block *dsb,
 				  struct z_erofs_lz4_cfgs *lz4, int len)
 {
-	if (lz4 || dsb->lz4_max_distance) {
+	if (lz4 || dsb->u1.lz4_max_distance) {
 		erofs_err(sb, "lz4 algorithm isn't enabled");
 		return -EINVAL;
 	}
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 1ca8da3f21254..b641658e772ff 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -122,6 +122,136 @@ static bool check_layout_compatibility(struct super_block *sb,
 	return true;
 }
 
+#ifdef CONFIG_EROFS_FS_ZIP
+/* read variable-sized metadata, offset will be aligned by 4-byte */
+static void *erofs_read_metadata(struct super_block *sb, struct page **pagep,
+				 erofs_off_t *offset, int *lengthp)
+{
+	struct page *page = *pagep;
+	u8 *buffer, *ptr;
+	int len, i, cnt;
+	erofs_blk_t blk;
+
+	*offset = round_up(*offset, 4);
+	blk = erofs_blknr(*offset);
+
+	if (!page || page->index != blk) {
+		if (page) {
+			unlock_page(page);
+			put_page(page);
+		}
+		page = erofs_get_meta_page(sb, blk);
+		if (IS_ERR(page))
+			goto err_nullpage;
+	}
+
+	ptr = kmap(page);
+	len = le16_to_cpu(*(__le16 *)&ptr[erofs_blkoff(*offset)]);
+	if (!len)
+		len = U16_MAX + 1;
+	buffer = kmalloc(len, GFP_KERNEL);
+	if (!buffer) {
+		buffer = ERR_PTR(-ENOMEM);
+		goto out;
+	}
+	*offset += sizeof(__le16);
+	*lengthp = len;
+
+	for (i = 0; i < len; i += cnt) {
+		cnt = min(EROFS_BLKSIZ - (int)erofs_blkoff(*offset), len - i);
+		blk = erofs_blknr(*offset);
+
+		if (!page || page->index != blk) {
+			if (page) {
+				kunmap(page);
+				unlock_page(page);
+				put_page(page);
+			}
+			page = erofs_get_meta_page(sb, blk);
+			if (IS_ERR(page)) {
+				kfree(buffer);
+				goto err_nullpage;
+			}
+			ptr = kmap(page);
+		}
+		memcpy(buffer + i, ptr + erofs_blkoff(*offset), cnt);
+		*offset += cnt;
+	}
+out:
+	kunmap(page);
+	*pagep = page;
+	return buffer;
+err_nullpage:
+	*pagep = NULL;
+	return page;
+}
+
+static int erofs_load_compr_cfgs(struct super_block *sb,
+				 struct erofs_super_block *dsb)
+{
+	struct erofs_sb_info *sbi;
+	struct page *page;
+	unsigned int algs, alg;
+	erofs_off_t offset;
+	int size, ret;
+
+	sbi = EROFS_SB(sb);
+	sbi->available_compr_algs = le16_to_cpu(dsb->u1.available_compr_algs);
+
+	if (sbi->available_compr_algs & ~Z_EROFS_ALL_COMPR_ALGS) {
+		erofs_err(sb, "try to load compressed fs with unsupported algorithms %x",
+			  sbi->available_compr_algs & ~Z_EROFS_ALL_COMPR_ALGS);
+		return -EINVAL;
+	}
+
+	offset = EROFS_SUPER_OFFSET + sbi->sb_size;
+	page = NULL;
+	alg = 0;
+	ret = 0;
+
+	for (algs = sbi->available_compr_algs; algs; algs >>= 1, ++alg) {
+		void *data;
+
+		if (!(algs & 1))
+			continue;
+
+		data = erofs_read_metadata(sb, &page, &offset, &size);
+		if (IS_ERR(data)) {
+			ret = PTR_ERR(data);
+			goto err;
+		}
+
+		switch (alg) {
+		case Z_EROFS_COMPRESSION_LZ4:
+			ret = z_erofs_load_lz4_config(sb, dsb, data, size);
+			break;
+		default:
+			DBG_BUGON(1);
+			ret = -EFAULT;
+		}
+		kfree(data);
+		if (ret)
+			goto err;
+	}
+err:
+	if (page) {
+		unlock_page(page);
+		put_page(page);
+	}
+	return ret;
+}
+#else
+static int erofs_load_compr_cfgs(struct super_block *sb,
+				 struct erofs_super_block *dsb)
+{
+	if (dsb->u1.available_compr_algs) {
+		erofs_err(sb, "try to load compressed fs when compression is disabled");
+		return -EINVAL;
+	}
+	return 0;
+}
+#endif
+
 static int erofs_read_superblock(struct super_block *sb)
 {
 	struct erofs_sb_info *sbi;
@@ -166,6 +296,12 @@ static int erofs_read_superblock(struct super_block *sb)
 	if (!check_layout_compatibility(sb, dsb))
 		goto out;
 
+	sbi->sb_size = 128 + dsb->sb_extslots * EROFS_SB_EXTSLOT_SIZE;
+	if (sbi->sb_size > EROFS_BLKSIZ) {
+		erofs_err(sb, "invalid sb_extslots %u (more than a fs block)",
+			  sbi->sb_size);
+		goto out;
+	}
 	sbi->blocks = le32_to_cpu(dsb->blocks);
 	sbi->meta_blkaddr = le32_to_cpu(dsb->meta_blkaddr);
 #ifdef CONFIG_EROFS_FS_XATTR
@@ -189,7 +325,10 @@ static int erofs_read_superblock(struct super_block *sb)
 	}
 
 	/* parse on-disk compression configurations */
-	ret = z_erofs_load_lz4_config(sb, dsb, NULL, 0);
+	if (erofs_sb_has_compr_cfgs(sbi))
+		ret = erofs_load_compr_cfgs(sb, dsb);
+	else
+		ret = z_erofs_load_lz4_config(sb, dsb, NULL, 0);
 out:
 	kunmap(page);
 	put_page(page);
-- 
GitLab


From 377bae60d01eb9444f31089dafcb4bdd8503a900 Mon Sep 17 00:00:00 2001
From: Ruiqi Gong <gongruiqi1@huawei.com>
Date: Wed, 31 Mar 2021 05:39:20 -0400
Subject: [PATCH 0022/4878] erofs: Clean up spelling mistakes found in fs/erofs

zmap.c: s/correspoinding/corresponding
zdata.c: s/endding/ending

Link: https://lore.kernel.org/r/20210331093920.31923-1-gongruiqi1@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ruiqi Gong <gongruiqi1@huawei.com>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zdata.c | 2 +-
 fs/erofs/zmap.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 13cf04a9812ba..836e31f16120d 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -933,7 +933,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 				 }, pagepool);
 
 out:
-	/* must handle all compressed pages before endding pages */
+	/* must handle all compressed pages before ending pages */
 	for (i = 0; i < clusterpages; ++i) {
 		page = compressed_pages[i];
 
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 14d2de35110cc..b384f546d3682 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -443,7 +443,7 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 		m.delta[0] = 1;
 		fallthrough;
 	case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD:
-		/* get the correspoinding first chunk */
+		/* get the corresponding first chunk */
 		err = z_erofs_extent_lookback(&m, m.delta[0]);
 		if (err)
 			goto unmap_out;
-- 
GitLab


From fd75d0fb190853344aeac221fef166a8d452108a Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:18 +0800
Subject: [PATCH 0023/4878] erofs: reserve physical_clusterbits[]

Formal big pcluster design is actually more powerful / flexable than
the previous thought whose pclustersize was fixed as power-of-2 blocks,
which was obviously inefficient and space-wasting. Instead, pclustersize
can now be set independently for each pcluster, so various pcluster
sizes can also be used together in one file if mkfs wants (for example,
according to data type and/or compression ratio).

Let's get rid of previous physical_clusterbits[] setting (also notice
that corresponding on-disk fields are still 0 for now). Therefore,
head1/2 can be used for at most 2 different algorithms in one file and
again pclustersize is now independent of these.

Link: https://lore.kernel.org/r/20210407043927.10623-2-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/erofs_fs.h |  4 +---
 fs/erofs/internal.h |  1 -
 fs/erofs/zdata.c    |  3 +--
 fs/erofs/zmap.c     | 15 ---------------
 4 files changed, 2 insertions(+), 21 deletions(-)

diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 17bc0b5f117dd..626b7d3e9ab7d 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -233,9 +233,7 @@ struct z_erofs_map_header {
 	__u8	h_algorithmtype;
 	/*
 	 * bit 0-2 : logical cluster bits - 12, e.g. 0 for 4096;
-	 * bit 3-4 : (physical - logical) cluster bits of head 1:
-	 *       For example, if logical clustersize = 4096, 1 for 8192.
-	 * bit 5-7 : (physical - logical) cluster bits of head 2.
+	 * bit 3-7 : reserved.
 	 */
 	__u8	h_clusterbits;
 };
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index ad7fea371325b..ad30fed6d52e2 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -266,7 +266,6 @@ struct erofs_inode {
 			unsigned short z_advise;
 			unsigned char  z_algorithmtype[2];
 			unsigned char  z_logical_clusterbits;
-			unsigned char  z_physical_clusterbits[2];
 		};
 #endif	/* CONFIG_EROFS_FS_ZIP */
 	};
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 836e31f16120d..6e8fcd1e85240 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -430,8 +430,7 @@ static int z_erofs_register_collection(struct z_erofs_collector *clt,
 	else
 		pcl->algorithmformat = Z_EROFS_COMPRESSION_SHIFTED;
 
-	pcl->clusterbits = EROFS_I(inode)->z_physical_clusterbits[0];
-	pcl->clusterbits -= PAGE_SHIFT;
+	pcl->clusterbits = 0;
 
 	/* new pclusters should be claimed as type 1, primary and followed */
 	pcl->next = clt->owned_head;
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index b384f546d3682..7fd6bd843471f 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -17,11 +17,8 @@ int z_erofs_fill_inode(struct inode *inode)
 		vi->z_algorithmtype[0] = 0;
 		vi->z_algorithmtype[1] = 0;
 		vi->z_logical_clusterbits = LOG_BLOCK_SIZE;
-		vi->z_physical_clusterbits[0] = vi->z_logical_clusterbits;
-		vi->z_physical_clusterbits[1] = vi->z_logical_clusterbits;
 		set_bit(EROFS_I_Z_INITED_BIT, &vi->flags);
 	}
-
 	inode->i_mapping->a_ops = &z_erofs_aops;
 	return 0;
 }
@@ -77,18 +74,6 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 	}
 
 	vi->z_logical_clusterbits = LOG_BLOCK_SIZE + (h->h_clusterbits & 7);
-	vi->z_physical_clusterbits[0] = vi->z_logical_clusterbits +
-					((h->h_clusterbits >> 3) & 3);
-
-	if (vi->z_physical_clusterbits[0] != LOG_BLOCK_SIZE) {
-		erofs_err(sb, "unsupported physical clusterbits %u for nid %llu, please upgrade kernel",
-			  vi->z_physical_clusterbits[0], vi->nid);
-		err = -EOPNOTSUPP;
-		goto unmap_done;
-	}
-
-	vi->z_physical_clusterbits[1] = vi->z_logical_clusterbits +
-					((h->h_clusterbits >> 5) & 7);
 	/* paired with smp_mb() at the beginning of the function */
 	smp_mb();
 	set_bit(EROFS_I_Z_INITED_BIT, &vi->flags);
-- 
GitLab


From f1f52c7608b860a80dcec3dcfcc0861e5aaf95d3 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Sat, 10 Apr 2021 03:06:30 +0800
Subject: [PATCH 0024/4878] erofs: introduce multipage per-CPU buffers

To deal the with the cases which inplace decompression is infeasible
for some inplace I/O. Per-CPU buffers was introduced to get rid of page
allocation latency and thrash for low-latency decompression algorithms
such as lz4.

For the big pcluster feature, introduce multipage per-CPU buffers to
keep such inplace I/O pclusters temporarily as well but note that
per-CPU pages are just consecutive virtually.

When a new big pcluster fs is mounted, its max pclustersize will be
read and per-CPU buffers can be growed if needed. Shrinking adjustable
per-CPU buffers is more complex (because we don't know if such size
is still be used), so currently just release them all when unloading.

Link: https://lore.kernel.org/r/20210409190630.19569-1-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/Makefile       |   2 +-
 fs/erofs/decompressor.c |   8 ++-
 fs/erofs/internal.h     |  25 ++-----
 fs/erofs/pcpubuf.c      | 148 ++++++++++++++++++++++++++++++++++++++++
 fs/erofs/super.c        |   2 +
 fs/erofs/utils.c        |  12 ----
 6 files changed, 163 insertions(+), 34 deletions(-)
 create mode 100644 fs/erofs/pcpubuf.c

diff --git a/fs/erofs/Makefile b/fs/erofs/Makefile
index af159539fc1b2..1f9aced49070a 100644
--- a/fs/erofs/Makefile
+++ b/fs/erofs/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 obj-$(CONFIG_EROFS_FS) += erofs.o
-erofs-objs := super.o inode.o data.o namei.o dir.o utils.o
+erofs-objs := super.o inode.o data.o namei.o dir.o utils.o pcpubuf.o
 erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
 erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 27aa6a99b3716..fb4838c0f0df9 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -47,7 +47,9 @@ int z_erofs_load_lz4_config(struct super_block *sb,
 	EROFS_SB(sb)->lz4.max_distance_pages = distance ?
 					DIV_ROUND_UP(distance, PAGE_SIZE) + 1 :
 					LZ4_MAX_DISTANCE_PAGES;
-	return 0;
+
+	/* TODO: use max pclusterblks after bigpcluster is enabled */
+	return erofs_pcpubuf_growsize(1);
 }
 
 static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
@@ -114,7 +116,7 @@ static void *generic_copy_inplace_data(struct z_erofs_decompress_req *rq,
 	 * pages should be copied in order to avoid being overlapped.
 	 */
 	struct page **in = rq->in;
-	u8 *const tmp = erofs_get_pcpubuf(0);
+	u8 *const tmp = erofs_get_pcpubuf(1);
 	u8 *tmpp = tmp;
 	unsigned int inlen = rq->inputsize - pageofs_in;
 	unsigned int count = min_t(uint, inlen, PAGE_SIZE - pageofs_in);
@@ -271,7 +273,7 @@ static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
 	 * compressed data is preferred.
 	 */
 	if (rq->outputsize <= PAGE_SIZE * 7 / 8) {
-		dst = erofs_get_pcpubuf(0);
+		dst = erofs_get_pcpubuf(1);
 		if (IS_ERR(dst))
 			return PTR_ERR(dst);
 
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index ad30fed6d52e2..6ba582ce957e8 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -197,9 +197,6 @@ static inline int erofs_wait_on_workgroup_freezed(struct erofs_workgroup *grp)
 
 /* hard limit of pages per compressed cluster */
 #define Z_EROFS_CLUSTER_MAX_PAGES       (CONFIG_EROFS_FS_CLUSTER_PAGE_LIMIT)
-#define EROFS_PCPUBUF_NR_PAGES          Z_EROFS_CLUSTER_MAX_PAGES
-#else
-#define EROFS_PCPUBUF_NR_PAGES          0
 #endif	/* !CONFIG_EROFS_FS_ZIP */
 
 /* we strictly follow PAGE_SIZE and no buffer head yet */
@@ -404,24 +401,16 @@ int erofs_namei(struct inode *dir, struct qstr *name,
 /* dir.c */
 extern const struct file_operations erofs_dir_fops;
 
+/* pcpubuf.c */
+void *erofs_get_pcpubuf(unsigned int requiredpages);
+void erofs_put_pcpubuf(void *ptr);
+int erofs_pcpubuf_growsize(unsigned int nrpages);
+void erofs_pcpubuf_init(void);
+void erofs_pcpubuf_exit(void);
+
 /* utils.c / zdata.c */
 struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp);
 
-#if (EROFS_PCPUBUF_NR_PAGES > 0)
-void *erofs_get_pcpubuf(unsigned int pagenr);
-#define erofs_put_pcpubuf(buf) do { \
-	(void)&(buf);	\
-	preempt_enable();	\
-} while (0)
-#else
-static inline void *erofs_get_pcpubuf(unsigned int pagenr)
-{
-	return ERR_PTR(-EOPNOTSUPP);
-}
-
-#define erofs_put_pcpubuf(buf) do {} while (0)
-#endif
-
 #ifdef CONFIG_EROFS_FS_ZIP
 int erofs_workgroup_put(struct erofs_workgroup *grp);
 struct erofs_workgroup *erofs_find_workgroup(struct super_block *sb,
diff --git a/fs/erofs/pcpubuf.c b/fs/erofs/pcpubuf.c
new file mode 100644
index 0000000000000..6c885575128ac
--- /dev/null
+++ b/fs/erofs/pcpubuf.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) Gao Xiang <xiang@kernel.org>
+ *
+ * For low-latency decompression algorithms (e.g. lz4), reserve consecutive
+ * per-CPU virtual memory (in pages) in advance to store such inplace I/O
+ * data if inplace decompression is failed (due to unmet inplace margin for
+ * example).
+ */
+#include "internal.h"
+
+struct erofs_pcpubuf {
+	raw_spinlock_t lock;
+	void *ptr;
+	struct page **pages;
+	unsigned int nrpages;
+};
+
+static DEFINE_PER_CPU(struct erofs_pcpubuf, erofs_pcb);
+
+void *erofs_get_pcpubuf(unsigned int requiredpages)
+	__acquires(pcb->lock)
+{
+	struct erofs_pcpubuf *pcb = &get_cpu_var(erofs_pcb);
+
+	raw_spin_lock(&pcb->lock);
+	/* check if the per-CPU buffer is too small */
+	if (requiredpages > pcb->nrpages) {
+		raw_spin_unlock(&pcb->lock);
+		put_cpu_var(erofs_pcb);
+		/* (for sparse checker) pretend pcb->lock is still taken */
+		__acquire(pcb->lock);
+		return NULL;
+	}
+	return pcb->ptr;
+}
+
+void erofs_put_pcpubuf(void *ptr) __releases(pcb->lock)
+{
+	struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, smp_processor_id());
+
+	DBG_BUGON(pcb->ptr != ptr);
+	raw_spin_unlock(&pcb->lock);
+	put_cpu_var(erofs_pcb);
+}
+
+/* the next step: support per-CPU page buffers hotplug */
+int erofs_pcpubuf_growsize(unsigned int nrpages)
+{
+	static DEFINE_MUTEX(pcb_resize_mutex);
+	static unsigned int pcb_nrpages;
+	LIST_HEAD(pagepool);
+	int delta, cpu, ret, i;
+
+	mutex_lock(&pcb_resize_mutex);
+	delta = nrpages - pcb_nrpages;
+	ret = 0;
+	/* avoid shrinking pcpubuf, since no idea how many fses rely on */
+	if (delta <= 0)
+		goto out;
+
+	for_each_possible_cpu(cpu) {
+		struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, cpu);
+		struct page **pages, **oldpages;
+		void *ptr, *old_ptr;
+
+		pages = kmalloc_array(nrpages, sizeof(*pages), GFP_KERNEL);
+		if (!pages) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		for (i = 0; i < nrpages; ++i) {
+			pages[i] = erofs_allocpage(&pagepool, GFP_KERNEL);
+			if (!pages[i]) {
+				ret = -ENOMEM;
+				oldpages = pages;
+				goto free_pagearray;
+			}
+		}
+		ptr = vmap(pages, nrpages, VM_MAP, PAGE_KERNEL);
+		if (!ptr) {
+			ret = -ENOMEM;
+			oldpages = pages;
+			goto free_pagearray;
+		}
+		raw_spin_lock(&pcb->lock);
+		old_ptr = pcb->ptr;
+		pcb->ptr = ptr;
+		oldpages = pcb->pages;
+		pcb->pages = pages;
+		i = pcb->nrpages;
+		pcb->nrpages = nrpages;
+		raw_spin_unlock(&pcb->lock);
+
+		if (!oldpages) {
+			DBG_BUGON(old_ptr);
+			continue;
+		}
+
+		if (old_ptr)
+			vunmap(old_ptr);
+free_pagearray:
+		while (i)
+			list_add(&oldpages[--i]->lru, &pagepool);
+		kfree(oldpages);
+		if (ret)
+			break;
+	}
+	pcb_nrpages = nrpages;
+	put_pages_list(&pagepool);
+out:
+	mutex_unlock(&pcb_resize_mutex);
+	return ret;
+}
+
+void erofs_pcpubuf_init(void)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, cpu);
+
+		raw_spin_lock_init(&pcb->lock);
+	}
+}
+
+void erofs_pcpubuf_exit(void)
+{
+	int cpu, i;
+
+	for_each_possible_cpu(cpu) {
+		struct erofs_pcpubuf *pcb = &per_cpu(erofs_pcb, cpu);
+
+		if (pcb->ptr) {
+			vunmap(pcb->ptr);
+			pcb->ptr = NULL;
+		}
+		if (!pcb->pages)
+			continue;
+
+		for (i = 0; i < pcb->nrpages; ++i)
+			if (pcb->pages[i])
+				put_page(pcb->pages[i]);
+		kfree(pcb->pages);
+		pcb->pages = NULL;
+	}
+}
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index b641658e772ff..bbf3bbd908e08 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -655,6 +655,7 @@ static int __init erofs_module_init(void)
 	if (err)
 		goto shrinker_err;
 
+	erofs_pcpubuf_init();
 	err = z_erofs_init_zip_subsystem();
 	if (err)
 		goto zip_err;
@@ -684,6 +685,7 @@ static void __exit erofs_module_exit(void)
 	/* Ensure all RCU free inodes are safe before cache is destroyed. */
 	rcu_barrier();
 	kmem_cache_destroy(erofs_inode_cachep);
+	erofs_pcpubuf_exit();
 }
 
 /* get filesystem statistics */
diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index de9986d2f82fd..6758c5b19f7cf 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -21,18 +21,6 @@ struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp)
 	return page;
 }
 
-#if (EROFS_PCPUBUF_NR_PAGES > 0)
-static struct {
-	u8 data[PAGE_SIZE * EROFS_PCPUBUF_NR_PAGES];
-} ____cacheline_aligned_in_smp erofs_pcpubuf[NR_CPUS];
-
-void *erofs_get_pcpubuf(unsigned int pagenr)
-{
-	preempt_disable();
-	return &erofs_pcpubuf[smp_processor_id()].data[pagenr * PAGE_SIZE];
-}
-#endif
-
 #ifdef CONFIG_EROFS_FS_ZIP
 /* global shrink count (for all mounted EROFS instances) */
 static atomic_long_t erofs_global_shrink_cnt;
-- 
GitLab


From 895377a4d6e43527cab07c7c7bd3e004f768e421 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:20 +0800
Subject: [PATCH 0025/4878] erofs: introduce physical cluster slab pools

Since multiple pcluster sizes could be used at once, the number of
compressed pages will become a variable factor. It's necessary to
introduce slab pools rather than a single slab cache now.

This limits the pclustersize to 1M (Z_EROFS_PCLUSTER_MAX_SIZE), and
get rid of the obsolete EROFS_FS_CLUSTER_PAGE_LIMIT, which has no
use now.

Link: https://lore.kernel.org/r/20210407043927.10623-4-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/Kconfig    |  14 ----
 fs/erofs/erofs_fs.h |   3 +
 fs/erofs/internal.h |   3 -
 fs/erofs/zdata.c    | 172 +++++++++++++++++++++++++++++---------------
 fs/erofs/zdata.h    |  14 ++--
 5 files changed, 126 insertions(+), 80 deletions(-)

diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index 74b0aaa7114c2..858b3339f381f 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -76,17 +76,3 @@ config EROFS_FS_ZIP
 
 	  If you don't want to enable compression feature, say N.
 
-config EROFS_FS_CLUSTER_PAGE_LIMIT
-	int "EROFS Cluster Pages Hard Limit"
-	depends on EROFS_FS_ZIP
-	range 1 256
-	default "1"
-	help
-	  Indicates maximum # of pages of a compressed
-	  physical cluster.
-
-	  For example, if files in a image were compressed
-	  into 8k-unit, hard limit should not be configured
-	  less than 2. Otherwise, the image will be refused
-	  to mount on this kernel.
-
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 626b7d3e9ab7d..76777673eb63c 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -201,6 +201,9 @@ static inline unsigned int erofs_xattr_entry_size(struct erofs_xattr_entry *e)
 				 e->e_name_len + le16_to_cpu(e->e_value_size));
 }
 
+/* maximum supported size of a physical compression cluster */
+#define Z_EROFS_PCLUSTER_MAX_SIZE	(1024 * 1024)
+
 /* available compression algorithm types (for h_algorithmtype) */
 enum {
 	Z_EROFS_COMPRESSION_LZ4	= 0,
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 6ba582ce957e8..3a25f588b8182 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -194,9 +194,6 @@ static inline int erofs_wait_on_workgroup_freezed(struct erofs_workgroup *grp)
 	return v;
 }
 #endif	/* !CONFIG_SMP */
-
-/* hard limit of pages per compressed cluster */
-#define Z_EROFS_CLUSTER_MAX_PAGES       (CONFIG_EROFS_FS_CLUSTER_PAGE_LIMIT)
 #endif	/* !CONFIG_EROFS_FS_ZIP */
 
 /* we strictly follow PAGE_SIZE and no buffer head yet */
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 6e8fcd1e85240..a0f83b876c819 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -10,6 +10,93 @@
 
 #include <trace/events/erofs.h>
 
+/*
+ * since pclustersize is variable for big pcluster feature, introduce slab
+ * pools implementation for different pcluster sizes.
+ */
+struct z_erofs_pcluster_slab {
+	struct kmem_cache *slab;
+	unsigned int maxpages;
+	char name[48];
+};
+
+#define _PCLP(n) { .maxpages = n }
+
+static struct z_erofs_pcluster_slab pcluster_pool[] __read_mostly = {
+	_PCLP(1), _PCLP(4), _PCLP(16), _PCLP(64), _PCLP(128),
+	_PCLP(Z_EROFS_PCLUSTER_MAX_PAGES)
+};
+
+static void z_erofs_destroy_pcluster_pool(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcluster_pool); ++i) {
+		if (!pcluster_pool[i].slab)
+			continue;
+		kmem_cache_destroy(pcluster_pool[i].slab);
+		pcluster_pool[i].slab = NULL;
+	}
+}
+
+static int z_erofs_create_pcluster_pool(void)
+{
+	struct z_erofs_pcluster_slab *pcs;
+	struct z_erofs_pcluster *a;
+	unsigned int size;
+
+	for (pcs = pcluster_pool;
+	     pcs < pcluster_pool + ARRAY_SIZE(pcluster_pool); ++pcs) {
+		size = struct_size(a, compressed_pages, pcs->maxpages);
+
+		sprintf(pcs->name, "erofs_pcluster-%u", pcs->maxpages);
+		pcs->slab = kmem_cache_create(pcs->name, size, 0,
+					      SLAB_RECLAIM_ACCOUNT, NULL);
+		if (pcs->slab)
+			continue;
+
+		z_erofs_destroy_pcluster_pool();
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static struct z_erofs_pcluster *z_erofs_alloc_pcluster(unsigned int nrpages)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcluster_pool); ++i) {
+		struct z_erofs_pcluster_slab *pcs = pcluster_pool + i;
+		struct z_erofs_pcluster *pcl;
+
+		if (nrpages > pcs->maxpages)
+			continue;
+
+		pcl = kmem_cache_zalloc(pcs->slab, GFP_NOFS);
+		if (!pcl)
+			return ERR_PTR(-ENOMEM);
+		pcl->pclusterpages = nrpages;
+		return pcl;
+	}
+	return ERR_PTR(-EINVAL);
+}
+
+static void z_erofs_free_pcluster(struct z_erofs_pcluster *pcl)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcluster_pool); ++i) {
+		struct z_erofs_pcluster_slab *pcs = pcluster_pool + i;
+
+		if (pcl->pclusterpages > pcs->maxpages)
+			continue;
+
+		kmem_cache_free(pcs->slab, pcl);
+		return;
+	}
+	DBG_BUGON(1);
+}
+
 /*
  * a compressed_pages[] placeholder in order to avoid
  * being filled with file pages for in-place decompression.
@@ -37,12 +124,11 @@ typedef tagptr1_t compressed_page_t;
 	tagptr_fold(compressed_page_t, page, 1)
 
 static struct workqueue_struct *z_erofs_workqueue __read_mostly;
-static struct kmem_cache *pcluster_cachep __read_mostly;
 
 void z_erofs_exit_zip_subsystem(void)
 {
 	destroy_workqueue(z_erofs_workqueue);
-	kmem_cache_destroy(pcluster_cachep);
+	z_erofs_destroy_pcluster_pool();
 }
 
 static inline int z_erofs_init_workqueue(void)
@@ -59,32 +145,16 @@ static inline int z_erofs_init_workqueue(void)
 	return z_erofs_workqueue ? 0 : -ENOMEM;
 }
 
-static void z_erofs_pcluster_init_once(void *ptr)
-{
-	struct z_erofs_pcluster *pcl = ptr;
-	struct z_erofs_collection *cl = z_erofs_primarycollection(pcl);
-	unsigned int i;
-
-	mutex_init(&cl->lock);
-	cl->nr_pages = 0;
-	cl->vcnt = 0;
-	for (i = 0; i < Z_EROFS_CLUSTER_MAX_PAGES; ++i)
-		pcl->compressed_pages[i] = NULL;
-}
-
 int __init z_erofs_init_zip_subsystem(void)
 {
-	pcluster_cachep = kmem_cache_create("erofs_compress",
-					    Z_EROFS_WORKGROUP_SIZE, 0,
-					    SLAB_RECLAIM_ACCOUNT,
-					    z_erofs_pcluster_init_once);
-	if (pcluster_cachep) {
-		if (!z_erofs_init_workqueue())
-			return 0;
-
-		kmem_cache_destroy(pcluster_cachep);
-	}
-	return -ENOMEM;
+	int err = z_erofs_create_pcluster_pool();
+
+	if (err)
+		return err;
+	err = z_erofs_init_workqueue();
+	if (err)
+		z_erofs_destroy_pcluster_pool();
+	return err;
 }
 
 enum z_erofs_collectmode {
@@ -169,7 +239,6 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 				     struct list_head *pagepool)
 {
 	const struct z_erofs_pcluster *pcl = clt->pcl;
-	const unsigned int clusterpages = BIT(pcl->clusterbits);
 	struct page **pages = clt->compressedpages;
 	pgoff_t index = pcl->obj.index + (pages - pcl->compressed_pages);
 	bool standalone = true;
@@ -179,7 +248,7 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 	if (clt->mode < COLLECT_PRIMARY_FOLLOWED)
 		return;
 
-	for (; pages < pcl->compressed_pages + clusterpages; ++pages) {
+	for (; pages < pcl->compressed_pages + pcl->pclusterpages; ++pages) {
 		struct page *page;
 		compressed_page_t t;
 		struct page *newpage = NULL;
@@ -239,14 +308,13 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 	struct z_erofs_pcluster *const pcl =
 		container_of(grp, struct z_erofs_pcluster, obj);
 	struct address_space *const mapping = MNGD_MAPPING(sbi);
-	const unsigned int clusterpages = BIT(pcl->clusterbits);
 	int i;
 
 	/*
 	 * refcount of workgroup is now freezed as 1,
 	 * therefore no need to worry about available decompression users.
 	 */
-	for (i = 0; i < clusterpages; ++i) {
+	for (i = 0; i < pcl->pclusterpages; ++i) {
 		struct page *page = pcl->compressed_pages[i];
 
 		if (!page)
@@ -271,13 +339,12 @@ int erofs_try_to_free_cached_page(struct address_space *mapping,
 				  struct page *page)
 {
 	struct z_erofs_pcluster *const pcl = (void *)page_private(page);
-	const unsigned int clusterpages = BIT(pcl->clusterbits);
 	int ret = 0;	/* 0 - busy */
 
 	if (erofs_workgroup_try_to_freeze(&pcl->obj, 1)) {
 		unsigned int i;
 
-		for (i = 0; i < clusterpages; ++i) {
+		for (i = 0; i < pcl->pclusterpages; ++i) {
 			if (pcl->compressed_pages[i] == page) {
 				WRITE_ONCE(pcl->compressed_pages[i], NULL);
 				ret = 1;
@@ -297,9 +364,9 @@ static inline bool z_erofs_try_inplace_io(struct z_erofs_collector *clt,
 					  struct page *page)
 {
 	struct z_erofs_pcluster *const pcl = clt->pcl;
-	const unsigned int clusterpages = BIT(pcl->clusterbits);
 
-	while (clt->compressedpages < pcl->compressed_pages + clusterpages) {
+	while (clt->compressedpages <
+	       pcl->compressed_pages + pcl->pclusterpages) {
 		if (!cmpxchg(clt->compressedpages++, NULL, page))
 			return true;
 	}
@@ -413,10 +480,10 @@ static int z_erofs_register_collection(struct z_erofs_collector *clt,
 	struct erofs_workgroup *grp;
 	int err;
 
-	/* no available workgroup, let's allocate one */
-	pcl = kmem_cache_alloc(pcluster_cachep, GFP_NOFS);
-	if (!pcl)
-		return -ENOMEM;
+	/* no available pcluster, let's allocate one */
+	pcl = z_erofs_alloc_pcluster(map->m_plen >> PAGE_SHIFT);
+	if (IS_ERR(pcl))
+		return PTR_ERR(pcl);
 
 	atomic_set(&pcl->obj.refcount, 1);
 	pcl->obj.index = map->m_pa >> PAGE_SHIFT;
@@ -430,24 +497,18 @@ static int z_erofs_register_collection(struct z_erofs_collector *clt,
 	else
 		pcl->algorithmformat = Z_EROFS_COMPRESSION_SHIFTED;
 
-	pcl->clusterbits = 0;
-
 	/* new pclusters should be claimed as type 1, primary and followed */
 	pcl->next = clt->owned_head;
 	clt->mode = COLLECT_PRIMARY_FOLLOWED;
 
 	cl = z_erofs_primarycollection(pcl);
-
-	/* must be cleaned before freeing to slab */
-	DBG_BUGON(cl->nr_pages);
-	DBG_BUGON(cl->vcnt);
-
 	cl->pageofs = map->m_la & ~PAGE_MASK;
 
 	/*
 	 * lock all primary followed works before visible to others
 	 * and mutex_trylock *never* fails for a new pcluster.
 	 */
+	mutex_init(&cl->lock);
 	DBG_BUGON(!mutex_trylock(&cl->lock));
 
 	grp = erofs_insert_workgroup(inode->i_sb, &pcl->obj);
@@ -471,7 +532,7 @@ static int z_erofs_register_collection(struct z_erofs_collector *clt,
 
 err_out:
 	mutex_unlock(&cl->lock);
-	kmem_cache_free(pcluster_cachep, pcl);
+	z_erofs_free_pcluster(pcl);
 	return err;
 }
 
@@ -517,7 +578,7 @@ out:
 
 	clt->compressedpages = clt->pcl->compressed_pages;
 	if (clt->mode <= COLLECT_PRIMARY) /* cannot do in-place I/O */
-		clt->compressedpages += Z_EROFS_CLUSTER_MAX_PAGES;
+		clt->compressedpages += clt->pcl->pclusterpages;
 	return 0;
 }
 
@@ -530,9 +591,8 @@ static void z_erofs_rcu_callback(struct rcu_head *head)
 	struct z_erofs_collection *const cl =
 		container_of(head, struct z_erofs_collection, rcu);
 
-	kmem_cache_free(pcluster_cachep,
-			container_of(cl, struct z_erofs_pcluster,
-				     primary_collection));
+	z_erofs_free_pcluster(container_of(cl, struct z_erofs_pcluster,
+					   primary_collection));
 }
 
 void erofs_workgroup_free_rcu(struct erofs_workgroup *grp)
@@ -784,9 +844,8 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 				       struct list_head *pagepool)
 {
 	struct erofs_sb_info *const sbi = EROFS_SB(sb);
-	const unsigned int clusterpages = BIT(pcl->clusterbits);
 	struct z_erofs_pagevec_ctor ctor;
-	unsigned int i, outputsize, llen, nr_pages;
+	unsigned int i, inputsize, outputsize, llen, nr_pages;
 	struct page *pages_onstack[Z_EROFS_VMAP_ONSTACK_PAGES];
 	struct page **pages, **compressed_pages, *page;
 
@@ -866,7 +925,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 	overlapped = false;
 	compressed_pages = pcl->compressed_pages;
 
-	for (i = 0; i < clusterpages; ++i) {
+	for (i = 0; i < pcl->pclusterpages; ++i) {
 		unsigned int pagenr;
 
 		page = compressed_pages[i];
@@ -919,12 +978,13 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 		partial = true;
 	}
 
+	inputsize = pcl->pclusterpages * PAGE_SIZE;
 	err = z_erofs_decompress(&(struct z_erofs_decompress_req) {
 					.sb = sb,
 					.in = compressed_pages,
 					.out = pages,
 					.pageofs_out = cl->pageofs,
-					.inputsize = PAGE_SIZE,
+					.inputsize = inputsize,
 					.outputsize = outputsize,
 					.alg = pcl->algorithmformat,
 					.inplace_io = overlapped,
@@ -933,7 +993,7 @@ static int z_erofs_decompress_pcluster(struct super_block *sb,
 
 out:
 	/* must handle all compressed pages before ending pages */
-	for (i = 0; i < clusterpages; ++i) {
+	for (i = 0; i < pcl->pclusterpages; ++i) {
 		page = compressed_pages[i];
 
 		if (erofs_page_is_managed(sbi, page))
@@ -1236,7 +1296,7 @@ static void z_erofs_submit_queue(struct super_block *sb,
 		pcl = container_of(owned_head, struct z_erofs_pcluster, next);
 
 		cur = pcl->obj.index;
-		end = cur + BIT(pcl->clusterbits);
+		end = cur + pcl->pclusterpages;
 
 		/* close the main owned chain at first */
 		owned_head = cmpxchg(&pcl->next, Z_EROFS_PCLUSTER_TAIL,
diff --git a/fs/erofs/zdata.h b/fs/erofs/zdata.h
index b503b353d4abc..942ee69dff6af 100644
--- a/fs/erofs/zdata.h
+++ b/fs/erofs/zdata.h
@@ -10,6 +10,7 @@
 #include "internal.h"
 #include "zpvec.h"
 
+#define Z_EROFS_PCLUSTER_MAX_PAGES	(Z_EROFS_PCLUSTER_MAX_SIZE / PAGE_SIZE)
 #define Z_EROFS_NR_INLINE_PAGEVECS      3
 
 /*
@@ -59,16 +60,17 @@ struct z_erofs_pcluster {
 	/* A: point to next chained pcluster or TAILs */
 	z_erofs_next_pcluster_t next;
 
-	/* A: compressed pages (including multi-usage pages) */
-	struct page *compressed_pages[Z_EROFS_CLUSTER_MAX_PAGES];
-
 	/* A: lower limit of decompressed length and if full length or not */
 	unsigned int length;
 
+	/* I: physical cluster size in pages */
+	unsigned short pclusterpages;
+
 	/* I: compression algorithm format */
 	unsigned char algorithmformat;
-	/* I: bit shift of physical cluster size */
-	unsigned char clusterbits;
+
+	/* A: compressed pages (can be cached or inplaced pages) */
+	struct page *compressed_pages[];
 };
 
 #define z_erofs_primarycollection(pcluster) (&(pcluster)->primary_collection)
@@ -82,8 +84,6 @@ struct z_erofs_pcluster {
 
 #define Z_EROFS_PCLUSTER_NIL            (NULL)
 
-#define Z_EROFS_WORKGROUP_SIZE  sizeof(struct z_erofs_pcluster)
-
 struct z_erofs_decompressqueue {
 	struct super_block *sb;
 	atomic_t pending_bios;
-- 
GitLab


From 8b18ae7145f142ceb7e1d1ea7aad35008f7c531d Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:21 +0800
Subject: [PATCH 0026/4878] erofs: fix up inplace I/O pointer for big pcluster

When picking up inplace I/O pages, it should be traversed in reverse
order in aligned with the traversal order of file-backed online pages.
Also, index should be updated together when preloading compressed pages.

Previously, only page-sized pclustersize was supported so no problem
at all. Also rename `compressedpages' to `icpage_ptr' to reflect its
functionality.

Link: https://lore.kernel.org/r/20210407043927.10623-5-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zdata.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index a0f83b876c819..40f07b50b2ecf 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -204,7 +204,8 @@ struct z_erofs_collector {
 
 	struct z_erofs_pcluster *pcl, *tailpcl;
 	struct z_erofs_collection *cl;
-	struct page **compressedpages;
+	/* a pointer used to pick up inplace I/O pages */
+	struct page **icpage_ptr;
 	z_erofs_next_pcluster_t owned_head;
 
 	enum z_erofs_collectmode mode;
@@ -238,17 +239,19 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 				     enum z_erofs_cache_alloctype type,
 				     struct list_head *pagepool)
 {
-	const struct z_erofs_pcluster *pcl = clt->pcl;
-	struct page **pages = clt->compressedpages;
-	pgoff_t index = pcl->obj.index + (pages - pcl->compressed_pages);
+	struct z_erofs_pcluster *pcl = clt->pcl;
 	bool standalone = true;
 	gfp_t gfp = (mapping_gfp_mask(mc) & ~__GFP_DIRECT_RECLAIM) |
 			__GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN;
+	struct page **pages;
+	pgoff_t index;
 
 	if (clt->mode < COLLECT_PRIMARY_FOLLOWED)
 		return;
 
-	for (; pages < pcl->compressed_pages + pcl->pclusterpages; ++pages) {
+	pages = pcl->compressed_pages;
+	index = pcl->obj.index;
+	for (; index < pcl->obj.index + pcl->pclusterpages; ++index, ++pages) {
 		struct page *page;
 		compressed_page_t t;
 		struct page *newpage = NULL;
@@ -360,16 +363,14 @@ int erofs_try_to_free_cached_page(struct address_space *mapping,
 }
 
 /* page_type must be Z_EROFS_PAGE_TYPE_EXCLUSIVE */
-static inline bool z_erofs_try_inplace_io(struct z_erofs_collector *clt,
-					  struct page *page)
+static bool z_erofs_try_inplace_io(struct z_erofs_collector *clt,
+				   struct page *page)
 {
 	struct z_erofs_pcluster *const pcl = clt->pcl;
 
-	while (clt->compressedpages <
-	       pcl->compressed_pages + pcl->pclusterpages) {
-		if (!cmpxchg(clt->compressedpages++, NULL, page))
+	while (clt->icpage_ptr > pcl->compressed_pages)
+		if (!cmpxchg(--clt->icpage_ptr, NULL, page))
 			return true;
-	}
 	return false;
 }
 
@@ -576,9 +577,8 @@ out:
 	z_erofs_pagevec_ctor_init(&clt->vector, Z_EROFS_NR_INLINE_PAGEVECS,
 				  clt->cl->pagevec, clt->cl->vcnt);
 
-	clt->compressedpages = clt->pcl->compressed_pages;
-	if (clt->mode <= COLLECT_PRIMARY) /* cannot do in-place I/O */
-		clt->compressedpages += clt->pcl->pclusterpages;
+	/* since file-backed online pages are traversed in reverse order */
+	clt->icpage_ptr = clt->pcl->compressed_pages + clt->pcl->pclusterpages;
 	return 0;
 }
 
-- 
GitLab


From 4ecd714109d8e8bb13965fda9190975a76cee607 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:22 +0800
Subject: [PATCH 0027/4878] erofs: add big physical cluster definition

Big pcluster indicates the size of compressed data for each physical
pcluster is no longer fixed as block size, but could be more than 1
block (more accurately, 1 logical pcluster)

When big pcluster feature is enabled for head0/1, delta0 of the 1st
non-head lcluster index will keep block count of this pcluster in
lcluster size instead of 1. Or, the compressed size of pcluster
should be 1 lcluster if pcluster has no non-head lcluster index.

Also note that BIG_PCLUSTER feature reuses COMPR_CFGS feature since
it depends on COMPR_CFGS and will be released together.

Link: https://lore.kernel.org/r/20210407043927.10623-6-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/erofs_fs.h | 19 +++++++++++++++----
 fs/erofs/internal.h |  1 +
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 76777673eb63c..ecc3a0ea0bc4f 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -19,6 +19,7 @@
  */
 #define EROFS_FEATURE_INCOMPAT_LZ4_0PADDING	0x00000001
 #define EROFS_FEATURE_INCOMPAT_COMPR_CFGS	0x00000002
+#define EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER	0x00000002
 #define EROFS_ALL_FEATURE_INCOMPAT		EROFS_FEATURE_INCOMPAT_LZ4_0PADDING
 
 #define EROFS_SB_EXTSLOT_SIZE	16
@@ -214,17 +215,20 @@ enum {
 /* 14 bytes (+ length field = 16 bytes) */
 struct z_erofs_lz4_cfgs {
 	__le16 max_distance;
-	u8 reserved[12];
+	__le16 max_pclusterblks;
+	u8 reserved[10];
 } __packed;
 
 /*
  * bit 0 : COMPACTED_2B indexes (0 - off; 1 - on)
  *  e.g. for 4k logical cluster size,      4B        if compacted 2B is off;
  *                                  (4B) + 2B + (4B) if compacted 2B is on.
+ * bit 1 : HEAD1 big pcluster (0 - off; 1 - on)
+ * bit 2 : HEAD2 big pcluster (0 - off; 1 - on)
  */
-#define Z_EROFS_ADVISE_COMPACTED_2B_BIT         0
-
-#define Z_EROFS_ADVISE_COMPACTED_2B     (1 << Z_EROFS_ADVISE_COMPACTED_2B_BIT)
+#define Z_EROFS_ADVISE_COMPACTED_2B		0x0001
+#define Z_EROFS_ADVISE_BIG_PCLUSTER_1		0x0002
+#define Z_EROFS_ADVISE_BIG_PCLUSTER_2		0x0004
 
 struct z_erofs_map_header {
 	__le32	h_reserved1;
@@ -279,6 +283,13 @@ enum {
 #define Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS        2
 #define Z_EROFS_VLE_DI_CLUSTER_TYPE_BIT         0
 
+/*
+ * D0_CBLKCNT will be marked _only_ at the 1st non-head lcluster to store the
+ * compressed block count of a compressed extent (in logical clusters, aka.
+ * block count of a pcluster).
+ */
+#define Z_EROFS_VLE_DI_D0_CBLKCNT		(1 << 11)
+
 struct z_erofs_vle_decompressed_index {
 	__le16 di_advise;
 	/* where to decompress in the head cluster */
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 3a25f588b8182..10370274e8214 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -230,6 +230,7 @@ static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \
 
 EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING)
 EROFS_FEATURE_FUNCS(compr_cfgs, incompat, INCOMPAT_COMPR_CFGS)
+EROFS_FEATURE_FUNCS(big_pcluster, incompat, INCOMPAT_BIG_PCLUSTER)
 EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM)
 
 /* atomic flag definitions */
-- 
GitLab


From 9e236b41fed9618cb6d8c749d427b8cccd19f5ce Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:23 +0800
Subject: [PATCH 0028/4878] erofs: adjust per-CPU buffers according to
 max_pclusterblks

Adjust per-CPU buffers on demand since big pcluster definition is
available. Also, bail out unsupported pcluster size according to
Z_EROFS_PCLUSTER_MAX_SIZE.

Link: https://lore.kernel.org/r/20210407043927.10623-7-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c | 20 ++++++++++++++++----
 fs/erofs/internal.h     |  2 ++
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index fb4838c0f0df9..900de4725d35e 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -32,6 +32,7 @@ int z_erofs_load_lz4_config(struct super_block *sb,
 			    struct erofs_super_block *dsb,
 			    struct z_erofs_lz4_cfgs *lz4, int size)
 {
+	struct erofs_sb_info *sbi = EROFS_SB(sb);
 	u16 distance;
 
 	if (lz4) {
@@ -40,16 +41,27 @@ int z_erofs_load_lz4_config(struct super_block *sb,
 			return -EINVAL;
 		}
 		distance = le16_to_cpu(lz4->max_distance);
+
+		sbi->lz4.max_pclusterblks = le16_to_cpu(lz4->max_pclusterblks);
+		if (!sbi->lz4.max_pclusterblks) {
+			sbi->lz4.max_pclusterblks = 1;	/* reserved case */
+		} else if (sbi->lz4.max_pclusterblks >
+			   Z_EROFS_PCLUSTER_MAX_SIZE / EROFS_BLKSIZ) {
+			erofs_err(sb, "too large lz4 pclusterblks %u",
+				  sbi->lz4.max_pclusterblks);
+			return -EINVAL;
+		} else if (sbi->lz4.max_pclusterblks >= 2) {
+			erofs_info(sb, "EXPERIMENTAL big pcluster feature in use. Use at your own risk!");
+		}
 	} else {
 		distance = le16_to_cpu(dsb->u1.lz4_max_distance);
+		sbi->lz4.max_pclusterblks = 1;
 	}
 
-	EROFS_SB(sb)->lz4.max_distance_pages = distance ?
+	sbi->lz4.max_distance_pages = distance ?
 					DIV_ROUND_UP(distance, PAGE_SIZE) + 1 :
 					LZ4_MAX_DISTANCE_PAGES;
-
-	/* TODO: use max pclusterblks after bigpcluster is enabled */
-	return erofs_pcpubuf_growsize(1);
+	return erofs_pcpubuf_growsize(sbi->lz4.max_pclusterblks);
 }
 
 static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 10370274e8214..d13f017c86592 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -63,6 +63,8 @@ struct erofs_fs_context {
 struct erofs_sb_lz4_info {
 	/* # of pages needed for EROFS lz4 rolling decompression */
 	u16 max_distance_pages;
+	/* maximum possible blocks for pclusters in the filesystem */
+	u16 max_pclusterblks;
 };
 
 struct erofs_sb_info {
-- 
GitLab


From 0c2ae1607dbefa4fdbeb569133540c9ad0a6b385 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:24 +0800
Subject: [PATCH 0029/4878] erofs: support parsing big pcluster compress
 indexes

When INCOMPAT_BIG_PCLUSTER sb feature is enabled, legacy compress indexes
will also have the same on-disk header compact indexes to keep per-file
configurations instead of leaving it zeroed.

If ADVISE_BIG_PCLUSTER is set for a file, CBLKCNT will be loaded for each
pcluster in this file by parsing 1st non-head lcluster.

Link: https://lore.kernel.org/r/20210407043927.10623-8-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zmap.c | 79 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 73 insertions(+), 6 deletions(-)

diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 7fd6bd843471f..6c0c47f68b750 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -11,8 +11,10 @@
 int z_erofs_fill_inode(struct inode *inode)
 {
 	struct erofs_inode *const vi = EROFS_I(inode);
+	struct erofs_sb_info *sbi = EROFS_SB(inode->i_sb);
 
-	if (vi->datalayout == EROFS_INODE_FLAT_COMPRESSION_LEGACY) {
+	if (!erofs_sb_has_big_pcluster(sbi) &&
+	    vi->datalayout == EROFS_INODE_FLAT_COMPRESSION_LEGACY) {
 		vi->z_advise = 0;
 		vi->z_algorithmtype[0] = 0;
 		vi->z_algorithmtype[1] = 0;
@@ -49,7 +51,8 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 	if (test_bit(EROFS_I_Z_INITED_BIT, &vi->flags))
 		goto out_unlock;
 
-	DBG_BUGON(vi->datalayout == EROFS_INODE_FLAT_COMPRESSION_LEGACY);
+	DBG_BUGON(!erofs_sb_has_big_pcluster(EROFS_SB(sb)) &&
+		  vi->datalayout == EROFS_INODE_FLAT_COMPRESSION_LEGACY);
 
 	pos = ALIGN(iloc(EROFS_SB(sb), vi->nid) + vi->inode_isize +
 		    vi->xattr_isize, 8);
@@ -96,7 +99,7 @@ struct z_erofs_maprecorder {
 	u8  type;
 	u16 clusterofs;
 	u16 delta[2];
-	erofs_blk_t pblk;
+	erofs_blk_t pblk, compressedlcs;
 };
 
 static int z_erofs_reload_indexes(struct z_erofs_maprecorder *m,
@@ -159,6 +162,15 @@ static int legacy_load_cluster_from_disk(struct z_erofs_maprecorder *m,
 	case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD:
 		m->clusterofs = 1 << vi->z_logical_clusterbits;
 		m->delta[0] = le16_to_cpu(di->di_u.delta[0]);
+		if (m->delta[0] & Z_EROFS_VLE_DI_D0_CBLKCNT) {
+			if (!(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1)) {
+				DBG_BUGON(1);
+				return -EFSCORRUPTED;
+			}
+			m->compressedlcs = m->delta[0] &
+				~Z_EROFS_VLE_DI_D0_CBLKCNT;
+			m->delta[0] = 1;
+		}
 		m->delta[1] = le16_to_cpu(di->di_u.delta[1]);
 		break;
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
@@ -366,6 +378,58 @@ static int z_erofs_extent_lookback(struct z_erofs_maprecorder *m,
 	return 0;
 }
 
+static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
+					    unsigned int initial_lcn)
+{
+	struct erofs_inode *const vi = EROFS_I(m->inode);
+	struct erofs_map_blocks *const map = m->map;
+	const unsigned int lclusterbits = vi->z_logical_clusterbits;
+	unsigned long lcn;
+	int err;
+
+	DBG_BUGON(m->type != Z_EROFS_VLE_CLUSTER_TYPE_PLAIN &&
+		  m->type != Z_EROFS_VLE_CLUSTER_TYPE_HEAD);
+	if (!(map->m_flags & EROFS_MAP_ZIPPED) ||
+	    !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1)) {
+		map->m_plen = 1 << lclusterbits;
+		return 0;
+	}
+
+	lcn = m->lcn + 1;
+	if (m->compressedlcs)
+		goto out;
+	if (lcn == initial_lcn)
+		goto err_bonus_cblkcnt;
+
+	err = z_erofs_load_cluster_from_disk(m, lcn);
+	if (err)
+		return err;
+
+	switch (m->type) {
+	case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD:
+		if (m->delta[0] != 1)
+			goto err_bonus_cblkcnt;
+		if (m->compressedlcs)
+			break;
+		fallthrough;
+	default:
+		erofs_err(m->inode->i_sb,
+			  "cannot found CBLKCNT @ lcn %lu of nid %llu",
+			  lcn, vi->nid);
+		DBG_BUGON(1);
+		return -EFSCORRUPTED;
+	}
+out:
+	map->m_plen = m->compressedlcs << lclusterbits;
+	return 0;
+err_bonus_cblkcnt:
+	erofs_err(m->inode->i_sb,
+		  "bogus CBLKCNT @ lcn %lu of nid %llu",
+		  lcn, vi->nid);
+	DBG_BUGON(1);
+	return -EFSCORRUPTED;
+}
+
 int z_erofs_map_blocks_iter(struct inode *inode,
 			    struct erofs_map_blocks *map,
 			    int flags)
@@ -377,6 +441,7 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 	};
 	int err = 0;
 	unsigned int lclusterbits, endoff;
+	unsigned long initial_lcn;
 	unsigned long long ofs, end;
 
 	trace_z_erofs_map_blocks_iter_enter(inode, map, flags);
@@ -395,10 +460,10 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 
 	lclusterbits = vi->z_logical_clusterbits;
 	ofs = map->m_la;
-	m.lcn = ofs >> lclusterbits;
+	initial_lcn = ofs >> lclusterbits;
 	endoff = ofs & ((1 << lclusterbits) - 1);
 
-	err = z_erofs_load_cluster_from_disk(&m, m.lcn);
+	err = z_erofs_load_cluster_from_disk(&m, initial_lcn);
 	if (err)
 		goto unmap_out;
 
@@ -442,10 +507,12 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 	}
 
 	map->m_llen = end - map->m_la;
-	map->m_plen = 1 << lclusterbits;
 	map->m_pa = blknr_to_addr(m.pblk);
 	map->m_flags |= EROFS_MAP_MAPPED;
 
+	err = z_erofs_get_extent_compressedlen(&m, initial_lcn);
+	if (err)
+		goto out;
 unmap_out:
 	if (m.kaddr)
 		kunmap_atomic(m.kaddr);
-- 
GitLab


From 962ad377eb7699d10ea779431c43a93c43d6feba Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:25 +0800
Subject: [PATCH 0030/4878] erofs: support parsing big pcluster compact indexes

Different from non-compact indexes, several lclusters are packed
as the compact form at once and an unique base blkaddr is stored for
each pack, so each lcluster index would take less space on avarage
(e.g. 2 bytes for COMPACT_2B.) btw, that is also why BIG_PCLUSTER
switch should be consistent for compact head0/1.

Prior to big pcluster, the size of all pclusters was 1 lcluster.
Therefore, when a new HEAD lcluster was scanned, blkaddr would be
bumped by 1 lcluster. However, that way doesn't work anymore for
big pcluster since we actually don't know the compressed size of
pclusters in advance (before reading CBLKCNT lcluster).

So, instead, let blkaddr of each pack be the first pcluster blkaddr
with a valid CBLKCNT, in detail,

 1) if CBLKCNT starts at the pack, this first valid pcluster is
    itself, e.g.
  _____________________________________________________________
 |_CBLKCNT0_|_NONHEAD_| .. |_HEAD_|_CBLKCNT1_| ... |_HEAD_| ...
 ^ = blkaddr base          ^ += CBLKCNT0           ^ += CBLKCNT1

 2) if CBLKCNT doesn't start at the pack, the first valid pcluster
    is the next pcluster, e.g.
  _________________________________________________________
 | NONHEAD_| .. |_HEAD_|_CBLKCNT0_| ... |_HEAD_|_HEAD_| ...
                ^ = blkaddr base        ^ += CBLKCNT0
                                               ^ += 1

When a CBLKCNT is found, blkaddr will be increased by CBLKCNT
lclusters, or a new HEAD is found immediately, bump blkaddr by 1
instead (see the picture above.)

Also noted if CBLKCNT is the end of the pack, instead of storing
delta1 (distance of the next HEAD lcluster) as normal NONHEADs,
it still uses the compressed block count (delta0) since delta1
can be calculated indirectly but the block count can't.

Adjust decoding logic to fit big pcluster compact indexes as well.

Link: https://lore.kernel.org/r/20210407043927.10623-9-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/zmap.c | 72 ++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 62 insertions(+), 10 deletions(-)

diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 6c0c47f68b750..e62d813756f28 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -77,6 +77,22 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 	}
 
 	vi->z_logical_clusterbits = LOG_BLOCK_SIZE + (h->h_clusterbits & 7);
+	if (!erofs_sb_has_big_pcluster(EROFS_SB(sb)) &&
+	    vi->z_advise & (Z_EROFS_ADVISE_BIG_PCLUSTER_1 |
+			    Z_EROFS_ADVISE_BIG_PCLUSTER_2)) {
+		erofs_err(sb, "per-inode big pcluster without sb feature for nid %llu",
+			  vi->nid);
+		err = -EFSCORRUPTED;
+		goto unmap_done;
+	}
+	if (vi->datalayout == EROFS_INODE_FLAT_COMPRESSION &&
+	    !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1) ^
+	    !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_2)) {
+		erofs_err(sb, "big pcluster head1/2 of compact indexes should be consistent for nid %llu",
+			  vi->nid);
+		err = -EFSCORRUPTED;
+		goto unmap_done;
+	}
 	/* paired with smp_mb() at the beginning of the function */
 	smp_mb();
 	set_bit(EROFS_I_Z_INITED_BIT, &vi->flags);
@@ -207,6 +223,7 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 	unsigned int vcnt, base, lo, encodebits, nblk;
 	int i;
 	u8 *in, type;
+	bool big_pcluster;
 
 	if (1 << amortizedshift == 4)
 		vcnt = 2;
@@ -215,6 +232,7 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 	else
 		return -EOPNOTSUPP;
 
+	big_pcluster = vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1;
 	encodebits = ((vcnt << amortizedshift) - sizeof(__le32)) * 8 / vcnt;
 	base = round_down(eofs, vcnt << amortizedshift);
 	in = m->kaddr + base;
@@ -226,7 +244,15 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 	m->type = type;
 	if (type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD) {
 		m->clusterofs = 1 << lclusterbits;
-		if (i + 1 != vcnt) {
+		if (lo & Z_EROFS_VLE_DI_D0_CBLKCNT) {
+			if (!big_pcluster) {
+				DBG_BUGON(1);
+				return -EFSCORRUPTED;
+			}
+			m->compressedlcs = lo & ~Z_EROFS_VLE_DI_D0_CBLKCNT;
+			m->delta[0] = 1;
+			return 0;
+		} else if (i + 1 != (int)vcnt) {
 			m->delta[0] = lo;
 			return 0;
 		}
@@ -239,22 +265,48 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 					  in, encodebits * (i - 1), &type);
 		if (type != Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD)
 			lo = 0;
+		else if (lo & Z_EROFS_VLE_DI_D0_CBLKCNT)
+			lo = 1;
 		m->delta[0] = lo + 1;
 		return 0;
 	}
 	m->clusterofs = lo;
 	m->delta[0] = 0;
 	/* figout out blkaddr (pblk) for HEAD lclusters */
-	nblk = 1;
-	while (i > 0) {
-		--i;
-		lo = decode_compactedbits(lclusterbits, lomask,
-					  in, encodebits * i, &type);
-		if (type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD)
-			i -= lo;
-
-		if (i >= 0)
+	if (!big_pcluster) {
+		nblk = 1;
+		while (i > 0) {
+			--i;
+			lo = decode_compactedbits(lclusterbits, lomask,
+						  in, encodebits * i, &type);
+			if (type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD)
+				i -= lo;
+
+			if (i >= 0)
+				++nblk;
+		}
+	} else {
+		nblk = 0;
+		while (i > 0) {
+			--i;
+			lo = decode_compactedbits(lclusterbits, lomask,
+						  in, encodebits * i, &type);
+			if (type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD) {
+				if (lo & Z_EROFS_VLE_DI_D0_CBLKCNT) {
+					--i;
+					nblk += lo & ~Z_EROFS_VLE_DI_D0_CBLKCNT;
+					continue;
+				}
+				/* bigpcluster shouldn't have plain d0 == 1 */
+				if (lo <= 1) {
+					DBG_BUGON(1);
+					return -EFSCORRUPTED;
+				}
+				i -= lo - 2;
+				continue;
+			}
 			++nblk;
+		}
 	}
 	in += (vcnt << amortizedshift) - sizeof(__le32);
 	m->pblk = le32_to_cpu(*(__le32 *)in) + nblk;
-- 
GitLab


From 0966f7ebb93c0675c8a8d5d304644c9ffd8e68b6 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:26 +0800
Subject: [PATCH 0031/4878] erofs: support decompress big pcluster for lz4
 backend

Prior to big pcluster, there was only one compressed page so it'd
easy to map this. However, when big pcluster is enabled, more work
needs to be done to handle multiple compressed pages. In detail,

 - (maptype 0) if there is only one compressed page + no need
   to copy inplace I/O, just map it directly what we did before;

 - (maptype 1) if there are more compressed pages + no need to
   copy inplace I/O, vmap such compressed pages instead;

 - (maptype 2) if inplace I/O needs to be copied, use per-CPU
   buffers for decompression then.

Another thing is how to detect inplace decompression is feasable or
not (it's still quite easy for non big pclusters), apart from the
inplace margin calculation, inplace I/O page reusing order is also
needed to be considered for each compressed page. Currently, if the
compressed page is the xth page, it shouldn't be reused as [0 ...
nrpages_out - nrpages_in + x], otherwise a full copy will be triggered.

Although there are some extra optimization ideas for this, I'd like
to make big pcluster work correctly first and obviously it can be
further optimized later since it has nothing with the on-disk format
at all.

Link: https://lore.kernel.org/r/20210407043927.10623-10-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/decompressor.c | 218 +++++++++++++++++++++++-----------------
 fs/erofs/internal.h     |  15 +++
 2 files changed, 138 insertions(+), 95 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 900de4725d35e..88e33addf2298 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -120,44 +120,85 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 	return kaddr ? 1 : 0;
 }
 
-static void *generic_copy_inplace_data(struct z_erofs_decompress_req *rq,
-				       u8 *src, unsigned int pageofs_in)
+static void *z_erofs_handle_inplace_io(struct z_erofs_decompress_req *rq,
+			void *inpage, unsigned int *inputmargin, int *maptype,
+			bool support_0padding)
 {
-	/*
-	 * if in-place decompression is ongoing, those decompressed
-	 * pages should be copied in order to avoid being overlapped.
-	 */
-	struct page **in = rq->in;
-	u8 *const tmp = erofs_get_pcpubuf(1);
-	u8 *tmpp = tmp;
-	unsigned int inlen = rq->inputsize - pageofs_in;
-	unsigned int count = min_t(uint, inlen, PAGE_SIZE - pageofs_in);
-
-	while (tmpp < tmp + inlen) {
-		if (!src)
-			src = kmap_atomic(*in);
-		memcpy(tmpp, src + pageofs_in, count);
-		kunmap_atomic(src);
-		src = NULL;
-		tmpp += count;
-		pageofs_in = 0;
-		count = PAGE_SIZE;
+	unsigned int nrpages_in, nrpages_out;
+	unsigned int ofull, oend, inputsize, total, i, j;
+	struct page **in;
+	void *src, *tmp;
+
+	inputsize = rq->inputsize;
+	nrpages_in = PAGE_ALIGN(inputsize) >> PAGE_SHIFT;
+	oend = rq->pageofs_out + rq->outputsize;
+	ofull = PAGE_ALIGN(oend);
+	nrpages_out = ofull >> PAGE_SHIFT;
+
+	if (rq->inplace_io) {
+		if (rq->partial_decoding || !support_0padding ||
+		    ofull - oend < LZ4_DECOMPRESS_INPLACE_MARGIN(inputsize))
+			goto docopy;
+
+		for (i = 0; i < nrpages_in; ++i) {
+			DBG_BUGON(rq->in[i] == NULL);
+			for (j = 0; j < nrpages_out - nrpages_in + i; ++j)
+				if (rq->out[j] == rq->in[i])
+					goto docopy;
+		}
+	}
+
+	if (nrpages_in <= 1) {
+		*maptype = 0;
+		return inpage;
+	}
+	kunmap_atomic(inpage);
+	might_sleep();
+	src = erofs_vm_map_ram(rq->in, nrpages_in);
+	if (!src)
+		return ERR_PTR(-ENOMEM);
+	*maptype = 1;
+	return src;
+
+docopy:
+	/* Or copy compressed data which can be overlapped to per-CPU buffer */
+	in = rq->in;
+	src = erofs_get_pcpubuf(nrpages_in);
+	if (!src) {
+		DBG_BUGON(1);
+		kunmap_atomic(inpage);
+		return ERR_PTR(-EFAULT);
+	}
+
+	tmp = src;
+	total = rq->inputsize;
+	while (total) {
+		unsigned int page_copycnt =
+			min_t(unsigned int, total, PAGE_SIZE - *inputmargin);
+
+		if (!inpage)
+			inpage = kmap_atomic(*in);
+		memcpy(tmp, inpage + *inputmargin, page_copycnt);
+		kunmap_atomic(inpage);
+		inpage = NULL;
+		tmp += page_copycnt;
+		total -= page_copycnt;
 		++in;
+		*inputmargin = 0;
 	}
-	return tmp;
+	*maptype = 2;
+	return src;
 }
 
 static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 {
-	unsigned int inputmargin, inlen;
-	u8 *src;
-	bool copied, support_0padding;
-	int ret;
-
-	if (rq->inputsize > PAGE_SIZE)
-		return -EOPNOTSUPP;
+	unsigned int inputmargin;
+	u8 *headpage, *src;
+	bool support_0padding;
+	int ret, maptype;
 
-	src = kmap_atomic(*rq->in);
+	DBG_BUGON(*rq->in == NULL);
+	headpage = kmap_atomic(*rq->in);
 	inputmargin = 0;
 	support_0padding = false;
 
@@ -165,50 +206,37 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 	if (erofs_sb_has_lz4_0padding(EROFS_SB(rq->sb))) {
 		support_0padding = true;
 
-		while (!src[inputmargin & ~PAGE_MASK])
+		while (!headpage[inputmargin & ~PAGE_MASK])
 			if (!(++inputmargin & ~PAGE_MASK))
 				break;
 
 		if (inputmargin >= rq->inputsize) {
-			kunmap_atomic(src);
+			kunmap_atomic(headpage);
 			return -EIO;
 		}
 	}
 
-	copied = false;
-	inlen = rq->inputsize - inputmargin;
-	if (rq->inplace_io) {
-		const uint oend = (rq->pageofs_out +
-				   rq->outputsize) & ~PAGE_MASK;
-		const uint nr = PAGE_ALIGN(rq->pageofs_out +
-					   rq->outputsize) >> PAGE_SHIFT;
-
-		if (rq->partial_decoding || !support_0padding ||
-		    rq->out[nr - 1] != rq->in[0] ||
-		    rq->inputsize - oend <
-		      LZ4_DECOMPRESS_INPLACE_MARGIN(inlen)) {
-			src = generic_copy_inplace_data(rq, src, inputmargin);
-			inputmargin = 0;
-			copied = true;
-		}
-	}
+	rq->inputsize -= inputmargin;
+	src = z_erofs_handle_inplace_io(rq, headpage, &inputmargin, &maptype,
+					support_0padding);
+	if (IS_ERR(src))
+		return PTR_ERR(src);
 
 	/* legacy format could compress extra data in a pcluster. */
 	if (rq->partial_decoding || !support_0padding)
 		ret = LZ4_decompress_safe_partial(src + inputmargin, out,
-						  inlen, rq->outputsize,
-						  rq->outputsize);
+				rq->inputsize, rq->outputsize, rq->outputsize);
 	else
 		ret = LZ4_decompress_safe(src + inputmargin, out,
-					  inlen, rq->outputsize);
+					  rq->inputsize, rq->outputsize);
 
 	if (ret != rq->outputsize) {
 		erofs_err(rq->sb, "failed to decompress %d in[%u, %u] out[%u]",
-			  ret, inlen, inputmargin, rq->outputsize);
+			  ret, rq->inputsize, inputmargin, rq->outputsize);
 
 		WARN_ON(1);
 		print_hex_dump(KERN_DEBUG, "[ in]: ", DUMP_PREFIX_OFFSET,
-			       16, 1, src + inputmargin, inlen, true);
+			       16, 1, src + inputmargin, rq->inputsize, true);
 		print_hex_dump(KERN_DEBUG, "[out]: ", DUMP_PREFIX_OFFSET,
 			       16, 1, out, rq->outputsize, true);
 
@@ -217,10 +245,16 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 		ret = -EIO;
 	}
 
-	if (copied)
-		erofs_put_pcpubuf(src);
-	else
+	if (maptype == 0) {
 		kunmap_atomic(src);
+	} else if (maptype == 1) {
+		vm_unmap_ram(src, PAGE_ALIGN(rq->inputsize) >> PAGE_SHIFT);
+	} else if (maptype == 2) {
+		erofs_put_pcpubuf(src);
+	} else {
+		DBG_BUGON(1);
+		return -EFAULT;
+	}
 	return ret;
 }
 
@@ -270,57 +304,51 @@ static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
 	const struct z_erofs_decompressor *alg = decompressors + rq->alg;
 	unsigned int dst_maptype;
 	void *dst;
-	int ret, i;
+	int ret;
 
-	if (nrpages_out == 1 && !rq->inplace_io) {
-		DBG_BUGON(!*rq->out);
-		dst = kmap_atomic(*rq->out);
-		dst_maptype = 0;
-		goto dstmap_out;
-	}
+	/* two optimized fast paths only for non bigpcluster cases yet */
+	if (rq->inputsize <= PAGE_SIZE) {
+		if (nrpages_out == 1 && !rq->inplace_io) {
+			DBG_BUGON(!*rq->out);
+			dst = kmap_atomic(*rq->out);
+			dst_maptype = 0;
+			goto dstmap_out;
+		}
 
-	/*
-	 * For the case of small output size (especially much less
-	 * than PAGE_SIZE), memcpy the decompressed data rather than
-	 * compressed data is preferred.
-	 */
-	if (rq->outputsize <= PAGE_SIZE * 7 / 8) {
-		dst = erofs_get_pcpubuf(1);
-		if (IS_ERR(dst))
-			return PTR_ERR(dst);
-
-		rq->inplace_io = false;
-		ret = alg->decompress(rq, dst);
-		if (!ret)
-			copy_from_pcpubuf(rq->out, dst, rq->pageofs_out,
-					  rq->outputsize);
-
-		erofs_put_pcpubuf(dst);
-		return ret;
+		/*
+		 * For the case of small output size (especially much less
+		 * than PAGE_SIZE), memcpy the decompressed data rather than
+		 * compressed data is preferred.
+		 */
+		if (rq->outputsize <= PAGE_SIZE * 7 / 8) {
+			dst = erofs_get_pcpubuf(1);
+			if (IS_ERR(dst))
+				return PTR_ERR(dst);
+
+			rq->inplace_io = false;
+			ret = alg->decompress(rq, dst);
+			if (!ret)
+				copy_from_pcpubuf(rq->out, dst, rq->pageofs_out,
+						  rq->outputsize);
+
+			erofs_put_pcpubuf(dst);
+			return ret;
+		}
 	}
 
+	/* general decoding path which can be used for all cases */
 	ret = alg->prepare_destpages(rq, pagepool);
-	if (ret < 0) {
+	if (ret < 0)
 		return ret;
-	} else if (ret) {
+	if (ret) {
 		dst = page_address(*rq->out);
 		dst_maptype = 1;
 		goto dstmap_out;
 	}
 
-	i = 0;
-	while (1) {
-		dst = vm_map_ram(rq->out, nrpages_out, -1);
-
-		/* retry two more times (totally 3 times) */
-		if (dst || ++i >= 3)
-			break;
-		vm_unmap_aliases();
-	}
-
+	dst = erofs_vm_map_ram(rq->out, nrpages_out);
 	if (!dst)
 		return -ENOMEM;
-
 	dst_maptype = 2;
 
 dstmap_out:
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index d13f017c86592..e2120c740be96 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -401,6 +401,21 @@ int erofs_namei(struct inode *dir, struct qstr *name,
 /* dir.c */
 extern const struct file_operations erofs_dir_fops;
 
+static inline void *erofs_vm_map_ram(struct page **pages, unsigned int count)
+{
+	int retried = 0;
+
+	while (1) {
+		void *p = vm_map_ram(pages, count, -1);
+
+		/* retry two more times (totally 3 times) */
+		if (p || ++retried >= 3)
+			return p;
+		vm_unmap_aliases();
+	}
+	return NULL;
+}
+
 /* pcpubuf.c */
 void *erofs_get_pcpubuf(unsigned int requiredpages);
 void erofs_put_pcpubuf(void *ptr);
-- 
GitLab


From 7ab82c26eec9ff029223a2219a2b2d8b8f35982c Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@redhat.com>
Date: Wed, 7 Apr 2021 12:39:27 +0800
Subject: [PATCH 0032/4878] erofs: enable big pcluster feature

Enable COMPR_CFGS and BIG_PCLUSTER since the implementations are
all settled properly.

Link: https://lore.kernel.org/r/20210407043927.10623-11-xiang@kernel.org
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
---
 fs/erofs/erofs_fs.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index ecc3a0ea0bc4f..8739d3adf51f1 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -20,7 +20,10 @@
 #define EROFS_FEATURE_INCOMPAT_LZ4_0PADDING	0x00000001
 #define EROFS_FEATURE_INCOMPAT_COMPR_CFGS	0x00000002
 #define EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER	0x00000002
-#define EROFS_ALL_FEATURE_INCOMPAT		EROFS_FEATURE_INCOMPAT_LZ4_0PADDING
+#define EROFS_ALL_FEATURE_INCOMPAT		\
+	(EROFS_FEATURE_INCOMPAT_LZ4_0PADDING | \
+	 EROFS_FEATURE_INCOMPAT_COMPR_CFGS | \
+	 EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER)
 
 #define EROFS_SB_EXTSLOT_SIZE	16
 
-- 
GitLab


From 2cc43c8b41f804abd9882f5a8b2b66353fc32292 Mon Sep 17 00:00:00 2001
From: Gao Xiang <xiang@kernel.org>
Date: Mon, 10 May 2021 14:47:15 +0800
Subject: [PATCH 0033/4878] erofs: fix 1 lcluster-sized pcluster for big
 pcluster

If the 1st NONHEAD lcluster of a pcluster isn't CBLKCNT lcluster type
rather than a HEAD or PLAIN type instead, which means its pclustersize
_must_ be 1 lcluster (since its uncompressed size < 2 lclusters),
as illustrated below:

       HEAD     HEAD / PLAIN    lcluster type
   ____________ ____________
  |_:__________|_________:__|   file data (uncompressed)
   .                .
  .____________.
  |____________|                pcluster data (compressed)

Such on-disk case was explained before [1] but missed to be handled
properly in the runtime implementation.

It can be observed if manually generating 1 lcluster-sized pcluster
with 2 lclusters (thus CBLKCNT doesn't exist.) Let's fix it now.

[1] https://lore.kernel.org/r/20210407043927.10623-1-xiang@kernel.org

Link: https://lore.kernel.org/r/20210510064715.29123-1-xiang@kernel.org
Fixes: cec6e93beadf ("erofs: support parsing big pcluster compress indexes")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 fs/erofs/zmap.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index e62d813756f28..efaf32596b97f 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -450,14 +450,31 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
 	lcn = m->lcn + 1;
 	if (m->compressedlcs)
 		goto out;
-	if (lcn == initial_lcn)
-		goto err_bonus_cblkcnt;
 
 	err = z_erofs_load_cluster_from_disk(m, lcn);
 	if (err)
 		return err;
 
+	/*
+	 * If the 1st NONHEAD lcluster has already been handled initially w/o
+	 * valid compressedlcs, which means at least it mustn't be CBLKCNT, or
+	 * an internal implemenatation error is detected.
+	 *
+	 * The following code can also handle it properly anyway, but let's
+	 * BUG_ON in the debugging mode only for developers to notice that.
+	 */
+	DBG_BUGON(lcn == initial_lcn &&
+		  m->type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD);
+
 	switch (m->type) {
+	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
+		/*
+		 * if the 1st NONHEAD lcluster is actually PLAIN or HEAD type
+		 * rather than CBLKCNT, it's a 1 lcluster-sized pcluster.
+		 */
+		m->compressedlcs = 1;
+		break;
 	case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD:
 		if (m->delta[0] != 1)
 			goto err_bonus_cblkcnt;
-- 
GitLab


From 5eb9e07a684fb8d5c9fb1c9b546edfb6e2c8067d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Wed, 19 May 2021 14:16:57 +0000
Subject: [PATCH 0034/4878] erofs: fix error return code in
 erofs_read_superblock()

'ret' will be overwritten to 0 if erofs_sb_has_sb_chksum() return true,
thus 0 will return in some error handling cases. Fix to return negative
error code -EINVAL instead of 0.

Link: https://lore.kernel.org/r/20210519141657.3062715-1-weiyongjun1@huawei.com
Fixes: b858a4844cfb ("erofs: support superblock checksum")
Cc: stable <stable@vger.kernel.org> # 5.5+
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Gao Xiang <xiang@kernel.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 fs/erofs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index bbf3bbd908e08..22991d22af5a2 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -285,6 +285,7 @@ static int erofs_read_superblock(struct super_block *sb)
 			goto out;
 	}
 
+	ret = -EINVAL;
 	blkszbits = dsb->blkszbits;
 	/* 9(512 bytes) + LOG_SECTORS_PER_BLOCK == LOG_BLOCK_SIZE */
 	if (blkszbits != LOG_BLOCK_SIZE) {
-- 
GitLab


From 656ebd2306bfa8a7ea720246e825b43f4088b5d9 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Mon, 19 Apr 2021 18:26:23 +0800
Subject: [PATCH 0035/4878] erofs: remove the occupied parameter from
 z_erofs_pagevec_enqueue()

No any behavior to variable occupied in z_erofs_attach_page() which
is only caller to z_erofs_pagevec_enqueue().

Link: https://lore.kernel.org/r/20210419102623.2015-1-zbestahu@gmail.com
Signed-off-by: Yue Hu <huyue2@yulong.com>
Reviewed-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 fs/erofs/zdata.c | 4 +---
 fs/erofs/zpvec.h | 5 +----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 40f07b50b2ecf..d24ef49e599fe 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -380,7 +380,6 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 			       enum z_erofs_page_type type)
 {
 	int ret;
-	bool occupied;
 
 	/* give priority for inplaceio */
 	if (clt->mode >= COLLECT_PRIMARY &&
@@ -388,8 +387,7 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 	    z_erofs_try_inplace_io(clt, page))
 		return 0;
 
-	ret = z_erofs_pagevec_enqueue(&clt->vector,
-				      page, type, &occupied);
+	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type);
 	clt->cl->vcnt += (unsigned int)ret;
 
 	return ret ? 0 : -EAGAIN;
diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h
index 1d67cbd387042..95a620739e6a6 100644
--- a/fs/erofs/zpvec.h
+++ b/fs/erofs/zpvec.h
@@ -107,10 +107,8 @@ static inline void z_erofs_pagevec_ctor_init(struct z_erofs_pagevec_ctor *ctor,
 
 static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
 					   struct page *page,
-					   enum z_erofs_page_type type,
-					   bool *occupied)
+					   enum z_erofs_page_type type)
 {
-	*occupied = false;
 	if (!ctor->next && type)
 		if (ctor->index + 1 == ctor->nr)
 			return false;
@@ -125,7 +123,6 @@ static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
 	/* should remind that collector->next never equal to 1, 2 */
 	if (type == (uintptr_t)ctor->next) {
 		ctor->next = page;
-		*occupied = true;
 	}
 	ctor->pages[ctor->index++] = tagptr_fold(erofs_vtptr_t, page, type);
 	return true;
-- 
GitLab


From e6f1019aead1f7c05460f79dca515c0be3a19811 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Thu, 3 Jun 2021 00:06:34 +0800
Subject: [PATCH 0036/4878] erofs: clean up file headers & footers

 - Remove my outdated misleading email address;

 - Get rid of all unnecessary trailing newline by accident.

Link: https://lore.kernel.org/r/20210602160634.10757-1-xiang@kernel.org
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/Kconfig        | 1 -
 fs/erofs/compress.h     | 2 --
 fs/erofs/data.c         | 2 --
 fs/erofs/decompressor.c | 2 --
 fs/erofs/dir.c          | 2 --
 fs/erofs/erofs_fs.h     | 2 --
 fs/erofs/inode.c        | 2 --
 fs/erofs/internal.h     | 2 --
 fs/erofs/namei.c        | 2 --
 fs/erofs/super.c        | 2 --
 fs/erofs/tagptr.h       | 3 ---
 fs/erofs/utils.c        | 2 --
 fs/erofs/xattr.c        | 2 --
 fs/erofs/xattr.h        | 1 -
 fs/erofs/zdata.c        | 2 --
 fs/erofs/zdata.h        | 1 -
 fs/erofs/zmap.c         | 2 --
 fs/erofs/zpvec.h        | 2 --
 18 files changed, 34 deletions(-)

diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index 858b3339f381f..906af0c1998c1 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -75,4 +75,3 @@ config EROFS_FS_ZIP
 	  Enable fixed-sized output compression for EROFS.
 
 	  If you don't want to enable compression feature, say N.
-
diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h
index aea129ddda74b..3701c72bacb2e 100644
--- a/fs/erofs/compress.h
+++ b/fs/erofs/compress.h
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2019 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_FS_COMPRESS_H
 #define __EROFS_FS_COMPRESS_H
@@ -85,4 +84,3 @@ int z_erofs_decompress(struct z_erofs_decompress_req *rq,
 		       struct list_head *pagepool);
 
 #endif
-
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index ebac756cb2a38..3787a5fb0a42b 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "internal.h"
 #include <linux/prefetch.h>
@@ -315,4 +314,3 @@ const struct address_space_operations erofs_raw_access_aops = {
 	.readahead = erofs_raw_access_readahead,
 	.bmap = erofs_bmap,
 };
-
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 88e33addf2298..a5bc4b1b7813e 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2019 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "compress.h"
 #include <linux/module.h>
@@ -407,4 +406,3 @@ int z_erofs_decompress(struct z_erofs_decompress_req *rq,
 		return z_erofs_shifted_transform(rq, pagepool);
 	return z_erofs_decompress_generic(rq, pagepool);
 }
-
diff --git a/fs/erofs/dir.c b/fs/erofs/dir.c
index 2776bb832127d..eee9b0b31b639 100644
--- a/fs/erofs/dir.c
+++ b/fs/erofs/dir.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "internal.h"
 
@@ -139,4 +138,3 @@ const struct file_operations erofs_dir_fops = {
 	.read		= generic_read_dir,
 	.iterate_shared	= erofs_readdir,
 };
-
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 8739d3adf51f1..0f8da74570b44 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -4,7 +4,6 @@
  *
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_FS_H
 #define __EROFS_FS_H
@@ -348,4 +347,3 @@ static inline void erofs_check_ondisk_layout_definitions(void)
 }
 
 #endif
-
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 0a94a52a119fb..5f9c6fb79ac01 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "xattr.h"
 
@@ -373,4 +372,3 @@ const struct inode_operations erofs_fast_symlink_iops = {
 	.listxattr = erofs_listxattr,
 	.get_acl = erofs_get_acl,
 };
-
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index e2120c740be96..960342e69eda7 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_INTERNAL_H
 #define __EROFS_INTERNAL_H
@@ -468,4 +467,3 @@ static inline int z_erofs_load_lz4_config(struct super_block *sb,
 #define EFSCORRUPTED    EUCLEAN         /* Filesystem is corrupted */
 
 #endif	/* __EROFS_INTERNAL_H */
-
diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
index 3a81e1f7fc067..a8271ce5e13ff 100644
--- a/fs/erofs/namei.c
+++ b/fs/erofs/namei.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "xattr.h"
 
@@ -247,4 +246,3 @@ const struct inode_operations erofs_dir_iops = {
 	.listxattr = erofs_listxattr,
 	.get_acl = erofs_get_acl,
 };
-
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 22991d22af5a2..8fc6c04b54f41 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include <linux/module.h>
 #include <linux/buffer_head.h>
@@ -752,4 +751,3 @@ module_exit(erofs_module_exit);
 MODULE_DESCRIPTION("Enhanced ROM File System");
 MODULE_AUTHOR("Gao Xiang, Chao Yu, Miao Xie, CONSUMER BG, HUAWEI Inc.");
 MODULE_LICENSE("GPL");
-
diff --git a/fs/erofs/tagptr.h b/fs/erofs/tagptr.h
index a72897c86744c..64ceb7270b5c1 100644
--- a/fs/erofs/tagptr.h
+++ b/fs/erofs/tagptr.h
@@ -1,8 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * A tagged pointer implementation
- *
- * Copyright (C) 2018 Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_FS_TAGPTR_H
 #define __EROFS_FS_TAGPTR_H
@@ -107,4 +105,3 @@ tagptr_init(o, cmpxchg(&ptptr->v, o.v, n.v)); })
 *ptptr; })
 
 #endif	/* __EROFS_FS_TAGPTR_H */
-
diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index 6758c5b19f7cf..bd86067a63f7f 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "internal.h"
 #include <linux/pagevec.h>
@@ -278,4 +277,3 @@ void erofs_exit_shrinker(void)
 	unregister_shrinker(&erofs_shrinker_info);
 }
 #endif	/* !CONFIG_EROFS_FS_ZIP */
-
diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
index 47314a26767a8..8dd54b420a1d6 100644
--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include <linux/security.h>
 #include "xattr.h"
@@ -709,4 +708,3 @@ struct posix_acl *erofs_get_acl(struct inode *inode, int type)
 	return acl;
 }
 #endif
-
diff --git a/fs/erofs/xattr.h b/fs/erofs/xattr.h
index 815304bd335f5..366dcb400525f 100644
--- a/fs/erofs/xattr.h
+++ b/fs/erofs/xattr.h
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_XATTR_H
 #define __EROFS_XATTR_H
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index d24ef49e599fe..c75e94606a41b 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "zdata.h"
 #include "compress.h"
@@ -1469,4 +1468,3 @@ const struct address_space_operations z_erofs_aops = {
 	.readpage = z_erofs_readpage,
 	.readahead = z_erofs_readahead,
 };
-
diff --git a/fs/erofs/zdata.h b/fs/erofs/zdata.h
index 942ee69dff6af..3a008f1b9f787 100644
--- a/fs/erofs/zdata.h
+++ b/fs/erofs/zdata.h
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_FS_ZDATA_H
 #define __EROFS_FS_ZDATA_H
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index efaf32596b97f..f68aea4baed74 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2018-2019 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #include "internal.h"
 #include <asm/unaligned.h>
@@ -597,4 +596,3 @@ out:
 	DBG_BUGON(err < 0 && err != -ENOMEM);
 	return err;
 }
-
diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h
index 95a620739e6a6..dfd7fe0503bb1 100644
--- a/fs/erofs/zpvec.h
+++ b/fs/erofs/zpvec.h
@@ -2,7 +2,6 @@
 /*
  * Copyright (C) 2018 HUAWEI, Inc.
  *             https://www.huawei.com/
- * Created by Gao Xiang <gaoxiang25@huawei.com>
  */
 #ifndef __EROFS_FS_ZPVEC_H
 #define __EROFS_FS_ZPVEC_H
@@ -151,4 +150,3 @@ z_erofs_pagevec_dequeue(struct z_erofs_pagevec_ctor *ctor,
 	return tagptr_unfold_ptr(t);
 }
 #endif
-
-- 
GitLab


From 46244d8b6100d7cea96b5df1d17e5745d1edeafb Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Thu, 5 Aug 2021 08:35:59 +0800
Subject: [PATCH 0037/4878] erofs: iomap support for non-tailpacking DIO

Add iomap support for non-tailpacking uncompressed data in order to
support DIO and DAX.

Direct I/O is useful in certain scenarios for uncompressed files.
For example, double pagecache can be avoid by direct I/O when
loop device is used for uncompressed files containing upper layer
compressed filesystem.

This adds iomap DIO support for non-tailpacking cases first and
tail-packing inline files are handled in the follow-up patch.

Link: https://lore.kernel.org/r/20210805003601.183063-2-hsiangkao@linux.alibaba.com
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/Kconfig    |  1 +
 fs/erofs/data.c     | 96 ++++++++++++++++++++++++++++++++++++++++++++-
 fs/erofs/inode.c    |  5 ++-
 fs/erofs/internal.h |  1 +
 4 files changed, 101 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index 906af0c1998c1..14b7470267423 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -3,6 +3,7 @@
 config EROFS_FS
 	tristate "EROFS filesystem support"
 	depends on BLOCK
+	select FS_IOMAP
 	select LIBCRC32C
 	help
 	  EROFS (Enhanced Read-Only File System) is a lightweight
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 3787a5fb0a42b..21558dab05d5f 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -5,7 +5,8 @@
  */
 #include "internal.h"
 #include <linux/prefetch.h>
-
+#include <linux/iomap.h>
+#include <linux/uio.h>
 #include <trace/events/erofs.h>
 
 static void erofs_readendio(struct bio *bio)
@@ -308,9 +309,102 @@ static sector_t erofs_bmap(struct address_space *mapping, sector_t block)
 	return 0;
 }
 
+static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
+		unsigned int flags, struct iomap *iomap, struct iomap *srcmap)
+{
+	int ret;
+	struct erofs_map_blocks map;
+
+	map.m_la = offset;
+	map.m_llen = length;
+
+	ret = erofs_map_blocks_flatmode(inode, &map, EROFS_GET_BLOCKS_RAW);
+	if (ret < 0)
+		return ret;
+
+	iomap->bdev = inode->i_sb->s_bdev;
+	iomap->offset = map.m_la;
+	iomap->length = map.m_llen;
+	iomap->flags = 0;
+
+	if (!(map.m_flags & EROFS_MAP_MAPPED)) {
+		iomap->type = IOMAP_HOLE;
+		iomap->addr = IOMAP_NULL_ADDR;
+		if (!iomap->length)
+			iomap->length = length;
+		return 0;
+	}
+
+	/* that shouldn't happen for now */
+	if (map.m_flags & EROFS_MAP_META) {
+		DBG_BUGON(1);
+		return -ENOTBLK;
+	}
+	iomap->type = IOMAP_MAPPED;
+	iomap->addr = map.m_pa;
+	return 0;
+}
+
+static const struct iomap_ops erofs_iomap_ops = {
+	.iomap_begin = erofs_iomap_begin,
+};
+
+static int erofs_prepare_dio(struct kiocb *iocb, struct iov_iter *to)
+{
+	struct inode *inode = file_inode(iocb->ki_filp);
+	loff_t align = iocb->ki_pos | iov_iter_count(to) |
+		iov_iter_alignment(to);
+	struct block_device *bdev = inode->i_sb->s_bdev;
+	unsigned int blksize_mask;
+
+	if (bdev)
+		blksize_mask = (1 << ilog2(bdev_logical_block_size(bdev))) - 1;
+	else
+		blksize_mask = (1 << inode->i_blkbits) - 1;
+
+	if (align & blksize_mask)
+		return -EINVAL;
+
+	/*
+	 * Temporarily fall back tail-packing inline to buffered I/O instead
+	 * since tail-packing inline support relies on an iomap core update.
+	 */
+	if (EROFS_I(inode)->datalayout == EROFS_INODE_FLAT_INLINE &&
+	    iocb->ki_pos + iov_iter_count(to) >
+			rounddown(inode->i_size, EROFS_BLKSIZ))
+		return 1;
+	return 0;
+}
+
+static ssize_t erofs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
+{
+	/* no need taking (shared) inode lock since it's a ro filesystem */
+	if (!iov_iter_count(to))
+		return 0;
+
+	if (iocb->ki_flags & IOCB_DIRECT) {
+		int err = erofs_prepare_dio(iocb, to);
+
+		if (!err)
+			return iomap_dio_rw(iocb, to, &erofs_iomap_ops,
+					    NULL, 0);
+		if (err < 0)
+			return err;
+	}
+	return generic_file_buffered_read(iocb, to, 0);
+}
+
 /* for uncompressed (aligned) files and raw access for other files */
 const struct address_space_operations erofs_raw_access_aops = {
 	.readpage = erofs_raw_access_readpage,
 	.readahead = erofs_raw_access_readahead,
 	.bmap = erofs_bmap,
+	.direct_IO = noop_direct_IO,
+};
+
+const struct file_operations erofs_file_fops = {
+	.llseek		= generic_file_llseek,
+	.read_iter	= erofs_file_read_iter,
+	.mmap		= generic_file_readonly_mmap,
+	.splice_read	= generic_file_splice_read,
 };
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 5f9c6fb79ac01..e4a2e9a2f30aa 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -247,7 +247,10 @@ static int erofs_fill_inode(struct inode *inode, int isdir)
 	switch (inode->i_mode & S_IFMT) {
 	case S_IFREG:
 		inode->i_op = &erofs_generic_iops;
-		inode->i_fop = &generic_ro_fops;
+		if (erofs_inode_is_data_compressed(vi->datalayout))
+			inode->i_fop = &generic_ro_fops;
+		else
+			inode->i_fop = &erofs_file_fops;
 		break;
 	case S_IFDIR:
 		inode->i_op = &erofs_dir_iops;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 960342e69eda7..eaa151e70620c 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -371,6 +371,7 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode,
 #endif	/* !CONFIG_EROFS_FS_ZIP */
 
 /* data.c */
+extern const struct file_operations erofs_file_fops;
 struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr);
 
 /* inode.c */
-- 
GitLab


From e9de2f5d7502211fea93e88391c39853068a15c5 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Thu, 5 Aug 2021 08:36:00 +0800
Subject: [PATCH 0038/4878] erofs: dax support for non-tailpacking regular file

DAX is quite useful for some VM use cases in order to save guest
memory extremely with minimal lightweight EROFS.

In order to prepare for such use cases, add preliminary dax support
for non-tailpacking regular files for now.

Tested with the DRAM-emulated PMEM and the EROFS image generated by
"mkfs.erofs -Enoinline_data enwik9.fsdax.img enwik9"

Link: https://lore.kernel.org/r/20210805003601.183063-3-hsiangkao@linux.alibaba.com
Cc: nvdimm@lists.linux.dev
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 Documentation/filesystems/erofs.rst |  3 ++
 fs/erofs/data.c                     | 41 +++++++++++++++++++-
 fs/erofs/inode.c                    |  4 ++
 fs/erofs/internal.h                 |  3 ++
 fs/erofs/super.c                    | 59 ++++++++++++++++++++++++++++-
 5 files changed, 107 insertions(+), 3 deletions(-)

diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index bf145171c2bf8..42109e46b80f2 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -84,6 +84,9 @@ cache_strategy=%s      Select a strategy for cached decompression from now on:
                                    It still does in-place I/O decompression
                                    for the rest compressed physical clusters.
 		       ==========  =============================================
+dax={always,never}     Use direct access (no page cache).  See
+                       Documentation/filesystems/dax.rst.
+dax                    A legacy option which is an alias for ``dax=always``.
 ===================    =========================================================
 
 On-disk details
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 21558dab05d5f..dc8984a876fa9 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -7,6 +7,7 @@
 #include <linux/prefetch.h>
 #include <linux/iomap.h>
 #include <linux/uio.h>
+#include <linux/dax.h>
 #include <trace/events/erofs.h>
 
 static void erofs_readendio(struct bio *bio)
@@ -323,6 +324,7 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 		return ret;
 
 	iomap->bdev = inode->i_sb->s_bdev;
+	iomap->dax_dev = EROFS_I_SB(inode)->dax_dev;
 	iomap->offset = map.m_la;
 	iomap->length = map.m_llen;
 	iomap->flags = 0;
@@ -382,6 +384,10 @@ static ssize_t erofs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	if (!iov_iter_count(to))
 		return 0;
 
+#ifdef CONFIG_FS_DAX
+	if (IS_DAX(iocb->ki_filp->f_mapping->host))
+		return dax_iomap_rw(iocb, to, &erofs_iomap_ops);
+#endif
 	if (iocb->ki_flags & IOCB_DIRECT) {
 		int err = erofs_prepare_dio(iocb, to);
 
@@ -402,9 +408,42 @@ const struct address_space_operations erofs_raw_access_aops = {
 	.direct_IO = noop_direct_IO,
 };
 
+#ifdef CONFIG_FS_DAX
+static vm_fault_t erofs_dax_huge_fault(struct vm_fault *vmf,
+		enum page_entry_size pe_size)
+{
+	return dax_iomap_fault(vmf, pe_size, NULL, NULL, &erofs_iomap_ops);
+}
+
+static vm_fault_t erofs_dax_fault(struct vm_fault *vmf)
+{
+	return erofs_dax_huge_fault(vmf, PE_SIZE_PTE);
+}
+
+static const struct vm_operations_struct erofs_dax_vm_ops = {
+	.fault		= erofs_dax_fault,
+	.huge_fault	= erofs_dax_huge_fault,
+};
+
+static int erofs_file_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	if (!IS_DAX(file_inode(file)))
+		return generic_file_readonly_mmap(file, vma);
+
+	if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE))
+		return -EINVAL;
+
+	vma->vm_ops = &erofs_dax_vm_ops;
+	vma->vm_flags |= VM_HUGEPAGE;
+	return 0;
+}
+#else
+#define erofs_file_mmap	generic_file_readonly_mmap
+#endif
+
 const struct file_operations erofs_file_fops = {
 	.llseek		= generic_file_llseek,
 	.read_iter	= erofs_file_read_iter,
-	.mmap		= generic_file_readonly_mmap,
+	.mmap		= erofs_file_mmap,
 	.splice_read	= generic_file_splice_read,
 };
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index e4a2e9a2f30aa..42066915b1673 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -174,6 +174,10 @@ static struct page *erofs_read_inode(struct inode *inode,
 	inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec;
 	inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec;
 
+	inode->i_flags &= ~S_DAX;
+	if (test_opt(&sbi->ctx, DAX_ALWAYS) && S_ISREG(inode->i_mode) &&
+	    vi->datalayout == EROFS_INODE_FLAT_PLAIN)
+		inode->i_flags |= S_DAX;
 	if (!nblks)
 		/* measure inode.i_blocks as generic filesystems */
 		inode->i_blocks = roundup(inode->i_size, EROFS_BLKSIZ) >> 9;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index eaa151e70620c..f1b898bb2a2ba 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -83,6 +83,7 @@ struct erofs_sb_info {
 
 	struct erofs_sb_lz4_info lz4;
 #endif	/* CONFIG_EROFS_FS_ZIP */
+	struct dax_device *dax_dev;
 	u32 blocks;
 	u32 meta_blkaddr;
 #ifdef CONFIG_EROFS_FS_XATTR
@@ -115,6 +116,8 @@ struct erofs_sb_info {
 /* Mount flags set via mount options or defaults */
 #define EROFS_MOUNT_XATTR_USER		0x00000010
 #define EROFS_MOUNT_POSIX_ACL		0x00000020
+#define EROFS_MOUNT_DAX_ALWAYS		0x00000040
+#define EROFS_MOUNT_DAX_NEVER		0x00000080
 
 #define clear_opt(ctx, option)	((ctx)->mount_opt &= ~EROFS_MOUNT_##option)
 #define set_opt(ctx, option)	((ctx)->mount_opt |= EROFS_MOUNT_##option)
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 8fc6c04b54f41..e8de689c94f4c 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -11,6 +11,7 @@
 #include <linux/crc32c.h>
 #include <linux/fs_context.h>
 #include <linux/fs_parser.h>
+#include <linux/dax.h>
 #include "xattr.h"
 
 #define CREATE_TRACE_POINTS
@@ -355,6 +356,8 @@ enum {
 	Opt_user_xattr,
 	Opt_acl,
 	Opt_cache_strategy,
+	Opt_dax,
+	Opt_dax_enum,
 	Opt_err
 };
 
@@ -365,14 +368,47 @@ static const struct constant_table erofs_param_cache_strategy[] = {
 	{}
 };
 
+static const struct constant_table erofs_dax_param_enums[] = {
+	{"always",	EROFS_MOUNT_DAX_ALWAYS},
+	{"never",	EROFS_MOUNT_DAX_NEVER},
+	{}
+};
+
 static const struct fs_parameter_spec erofs_fs_parameters[] = {
 	fsparam_flag_no("user_xattr",	Opt_user_xattr),
 	fsparam_flag_no("acl",		Opt_acl),
 	fsparam_enum("cache_strategy",	Opt_cache_strategy,
 		     erofs_param_cache_strategy),
+	fsparam_flag("dax",             Opt_dax),
+	fsparam_enum("dax",		Opt_dax_enum, erofs_dax_param_enums),
 	{}
 };
 
+static bool erofs_fc_set_dax_mode(struct fs_context *fc, unsigned int mode)
+{
+#ifdef CONFIG_FS_DAX
+	struct erofs_fs_context *ctx = fc->fs_private;
+
+	switch (mode) {
+	case EROFS_MOUNT_DAX_ALWAYS:
+		warnfc(fc, "DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
+		set_opt(ctx, DAX_ALWAYS);
+		clear_opt(ctx, DAX_NEVER);
+		return true;
+	case EROFS_MOUNT_DAX_NEVER:
+		set_opt(ctx, DAX_NEVER);
+		clear_opt(ctx, DAX_ALWAYS);
+		return true;
+	default:
+		DBG_BUGON(1);
+		return false;
+	}
+#else
+	errorfc(fc, "dax options not supported");
+	return false;
+#endif
+}
+
 static int erofs_fc_parse_param(struct fs_context *fc,
 				struct fs_parameter *param)
 {
@@ -412,6 +448,14 @@ static int erofs_fc_parse_param(struct fs_context *fc,
 		errorfc(fc, "compression not supported, cache_strategy ignored");
 #endif
 		break;
+	case Opt_dax:
+		if (!erofs_fc_set_dax_mode(fc, EROFS_MOUNT_DAX_ALWAYS))
+			return -EINVAL;
+		break;
+	case Opt_dax_enum:
+		if (!erofs_fc_set_dax_mode(fc, result.uint_32))
+			return -EINVAL;
+		break;
 	default:
 		return -ENOPARAM;
 	}
@@ -496,10 +540,16 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
 		return -ENOMEM;
 
 	sb->s_fs_info = sbi;
+	sbi->dax_dev = fs_dax_get_by_bdev(sb->s_bdev);
 	err = erofs_read_superblock(sb);
 	if (err)
 		return err;
 
+	if (test_opt(ctx, DAX_ALWAYS) &&
+	    !bdev_dax_supported(sb->s_bdev, EROFS_BLKSIZ)) {
+		errorfc(fc, "DAX unsupported by block device. Turning off DAX.");
+		clear_opt(ctx, DAX_ALWAYS);
+	}
 	sb->s_flags |= SB_RDONLY | SB_NOATIME;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
 	sb->s_time_gran = 1;
@@ -609,6 +659,7 @@ static void erofs_kill_sb(struct super_block *sb)
 	sbi = EROFS_SB(sb);
 	if (!sbi)
 		return;
+	fs_put_dax(sbi->dax_dev);
 	kfree(sbi);
 	sb->s_fs_info = NULL;
 }
@@ -711,8 +762,8 @@ static int erofs_statfs(struct dentry *dentry, struct kstatfs *buf)
 
 static int erofs_show_options(struct seq_file *seq, struct dentry *root)
 {
-	struct erofs_sb_info *sbi __maybe_unused = EROFS_SB(root->d_sb);
-	struct erofs_fs_context *ctx __maybe_unused = &sbi->ctx;
+	struct erofs_sb_info *sbi = EROFS_SB(root->d_sb);
+	struct erofs_fs_context *ctx = &sbi->ctx;
 
 #ifdef CONFIG_EROFS_FS_XATTR
 	if (test_opt(ctx, XATTR_USER))
@@ -734,6 +785,10 @@ static int erofs_show_options(struct seq_file *seq, struct dentry *root)
 	else if (ctx->cache_strategy == EROFS_ZIP_CACHE_READAROUND)
 		seq_puts(seq, ",cache_strategy=readaround");
 #endif
+	if (test_opt(ctx, DAX_ALWAYS))
+		seq_puts(seq, ",dax=always");
+	if (test_opt(ctx, DAX_NEVER))
+		seq_puts(seq, ",dax=never");
 	return 0;
 }
 
-- 
GitLab


From 64690bbc4deb86cea574af4979bf483830fbaf18 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Thu, 5 Aug 2021 08:36:01 +0800
Subject: [PATCH 0039/4878] erofs: convert all uncompressed cases to iomap

Since tail-packing inline has been supported by iomap now, let's
convert all EROFS uncompressed data I/O to iomap, which is pretty
straight-forward.

Link: https://lore.kernel.org/r/20210805003601.183063-4-hsiangkao@linux.alibaba.com
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/data.c | 290 +++++++++---------------------------------------
 1 file changed, 51 insertions(+), 239 deletions(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index dc8984a876fa9..21a87575ff1b3 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -10,29 +10,6 @@
 #include <linux/dax.h>
 #include <trace/events/erofs.h>
 
-static void erofs_readendio(struct bio *bio)
-{
-	struct bio_vec *bvec;
-	blk_status_t err = bio->bi_status;
-	struct bvec_iter_all iter_all;
-
-	bio_for_each_segment_all(bvec, bio, iter_all) {
-		struct page *page = bvec->bv_page;
-
-		/* page is already locked */
-		DBG_BUGON(PageUptodate(page));
-
-		if (err)
-			SetPageError(page);
-		else
-			SetPageUptodate(page);
-
-		unlock_page(page);
-		/* page could be reclaimed now */
-	}
-	bio_put(bio);
-}
-
 struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr)
 {
 	struct address_space *const mapping = sb->s_bdev->bd_inode->i_mapping;
@@ -110,206 +87,6 @@ err_out:
 	return err;
 }
 
-static inline struct bio *erofs_read_raw_page(struct bio *bio,
-					      struct address_space *mapping,
-					      struct page *page,
-					      erofs_off_t *last_block,
-					      unsigned int nblocks,
-					      unsigned int *eblks,
-					      bool ra)
-{
-	struct inode *const inode = mapping->host;
-	struct super_block *const sb = inode->i_sb;
-	erofs_off_t current_block = (erofs_off_t)page->index;
-	int err;
-
-	DBG_BUGON(!nblocks);
-
-	if (PageUptodate(page)) {
-		err = 0;
-		goto has_updated;
-	}
-
-	/* note that for readpage case, bio also equals to NULL */
-	if (bio &&
-	    (*last_block + 1 != current_block || !*eblks)) {
-submit_bio_retry:
-		submit_bio(bio);
-		bio = NULL;
-	}
-
-	if (!bio) {
-		struct erofs_map_blocks map = {
-			.m_la = blknr_to_addr(current_block),
-		};
-		erofs_blk_t blknr;
-		unsigned int blkoff;
-
-		err = erofs_map_blocks_flatmode(inode, &map, EROFS_GET_BLOCKS_RAW);
-		if (err)
-			goto err_out;
-
-		/* zero out the holed page */
-		if (!(map.m_flags & EROFS_MAP_MAPPED)) {
-			zero_user_segment(page, 0, PAGE_SIZE);
-			SetPageUptodate(page);
-
-			/* imply err = 0, see erofs_map_blocks */
-			goto has_updated;
-		}
-
-		/* for RAW access mode, m_plen must be equal to m_llen */
-		DBG_BUGON(map.m_plen != map.m_llen);
-
-		blknr = erofs_blknr(map.m_pa);
-		blkoff = erofs_blkoff(map.m_pa);
-
-		/* deal with inline page */
-		if (map.m_flags & EROFS_MAP_META) {
-			void *vsrc, *vto;
-			struct page *ipage;
-
-			DBG_BUGON(map.m_plen > PAGE_SIZE);
-
-			ipage = erofs_get_meta_page(inode->i_sb, blknr);
-
-			if (IS_ERR(ipage)) {
-				err = PTR_ERR(ipage);
-				goto err_out;
-			}
-
-			vsrc = kmap_atomic(ipage);
-			vto = kmap_atomic(page);
-			memcpy(vto, vsrc + blkoff, map.m_plen);
-			memset(vto + map.m_plen, 0, PAGE_SIZE - map.m_plen);
-			kunmap_atomic(vto);
-			kunmap_atomic(vsrc);
-			flush_dcache_page(page);
-
-			SetPageUptodate(page);
-			/* TODO: could we unlock the page earlier? */
-			unlock_page(ipage);
-			put_page(ipage);
-
-			/* imply err = 0, see erofs_map_blocks */
-			goto has_updated;
-		}
-
-		/* pa must be block-aligned for raw reading */
-		DBG_BUGON(erofs_blkoff(map.m_pa));
-
-		/* max # of continuous pages */
-		if (nblocks > DIV_ROUND_UP(map.m_plen, PAGE_SIZE))
-			nblocks = DIV_ROUND_UP(map.m_plen, PAGE_SIZE);
-
-		*eblks = bio_max_segs(nblocks);
-		bio = bio_alloc(GFP_NOIO, *eblks);
-
-		bio->bi_end_io = erofs_readendio;
-		bio_set_dev(bio, sb->s_bdev);
-		bio->bi_iter.bi_sector = (sector_t)blknr <<
-			LOG_SECTORS_PER_BLOCK;
-		bio->bi_opf = REQ_OP_READ | (ra ? REQ_RAHEAD : 0);
-	}
-
-	err = bio_add_page(bio, page, PAGE_SIZE, 0);
-	/* out of the extent or bio is full */
-	if (err < PAGE_SIZE)
-		goto submit_bio_retry;
-	--*eblks;
-	*last_block = current_block;
-	return bio;
-
-err_out:
-	/* for sync reading, set page error immediately */
-	if (!ra) {
-		SetPageError(page);
-		ClearPageUptodate(page);
-	}
-has_updated:
-	unlock_page(page);
-
-	/* if updated manually, continuous pages has a gap */
-	if (bio)
-		submit_bio(bio);
-	return err ? ERR_PTR(err) : NULL;
-}
-
-/*
- * since we dont have write or truncate flows, so no inode
- * locking needs to be held at the moment.
- */
-static int erofs_raw_access_readpage(struct file *file, struct page *page)
-{
-	erofs_off_t last_block;
-	unsigned int eblks;
-	struct bio *bio;
-
-	trace_erofs_readpage(page, true);
-
-	bio = erofs_read_raw_page(NULL, page->mapping,
-				  page, &last_block, 1, &eblks, false);
-
-	if (IS_ERR(bio))
-		return PTR_ERR(bio);
-
-	if (bio)
-		submit_bio(bio);
-	return 0;
-}
-
-static void erofs_raw_access_readahead(struct readahead_control *rac)
-{
-	erofs_off_t last_block;
-	unsigned int eblks;
-	struct bio *bio = NULL;
-	struct page *page;
-
-	trace_erofs_readpages(rac->mapping->host, readahead_index(rac),
-			readahead_count(rac), true);
-
-	while ((page = readahead_page(rac))) {
-		prefetchw(&page->flags);
-
-		bio = erofs_read_raw_page(bio, rac->mapping, page, &last_block,
-				readahead_count(rac), &eblks, true);
-
-		/* all the page errors are ignored when readahead */
-		if (IS_ERR(bio)) {
-			pr_err("%s, readahead error at page %lu of nid %llu\n",
-			       __func__, page->index,
-			       EROFS_I(rac->mapping->host)->nid);
-
-			bio = NULL;
-		}
-
-		put_page(page);
-	}
-
-	if (bio)
-		submit_bio(bio);
-}
-
-static sector_t erofs_bmap(struct address_space *mapping, sector_t block)
-{
-	struct inode *inode = mapping->host;
-	struct erofs_map_blocks map = {
-		.m_la = blknr_to_addr(block),
-	};
-
-	if (EROFS_I(inode)->datalayout == EROFS_INODE_FLAT_INLINE) {
-		erofs_blk_t blks = i_size_read(inode) >> LOG_BLOCK_SIZE;
-
-		if (block >> LOG_SECTORS_PER_BLOCK >= blks)
-			return 0;
-	}
-
-	if (!erofs_map_blocks_flatmode(inode, &map, EROFS_GET_BLOCKS_RAW))
-		return erofs_blknr(map.m_pa);
-
-	return 0;
-}
-
 static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 		unsigned int flags, struct iomap *iomap, struct iomap *srcmap)
 {
@@ -328,6 +105,7 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	iomap->offset = map.m_la;
 	iomap->length = map.m_llen;
 	iomap->flags = 0;
+	iomap->private = NULL;
 
 	if (!(map.m_flags & EROFS_MAP_MAPPED)) {
 		iomap->type = IOMAP_HOLE;
@@ -337,20 +115,63 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 		return 0;
 	}
 
-	/* that shouldn't happen for now */
 	if (map.m_flags & EROFS_MAP_META) {
-		DBG_BUGON(1);
-		return -ENOTBLK;
+		struct page *ipage;
+
+		iomap->type = IOMAP_INLINE;
+		ipage = erofs_get_meta_page(inode->i_sb,
+					    erofs_blknr(map.m_pa));
+		if (IS_ERR(ipage))
+			return PTR_ERR(ipage);
+		iomap->inline_data = page_address(ipage) +
+					erofs_blkoff(map.m_pa);
+		iomap->private = ipage;
+	} else {
+		iomap->type = IOMAP_MAPPED;
+		iomap->addr = map.m_pa;
 	}
-	iomap->type = IOMAP_MAPPED;
-	iomap->addr = map.m_pa;
 	return 0;
 }
 
+static int erofs_iomap_end(struct inode *inode, loff_t pos, loff_t length,
+		ssize_t written, unsigned int flags, struct iomap *iomap)
+{
+	struct page *ipage = iomap->private;
+
+	if (ipage) {
+		DBG_BUGON(iomap->type != IOMAP_INLINE);
+		unlock_page(ipage);
+		put_page(ipage);
+	} else {
+		DBG_BUGON(iomap->type == IOMAP_INLINE);
+	}
+	return written;
+}
+
 static const struct iomap_ops erofs_iomap_ops = {
 	.iomap_begin = erofs_iomap_begin,
+	.iomap_end = erofs_iomap_end,
 };
 
+/*
+ * since we dont have write or truncate flows, so no inode
+ * locking needs to be held at the moment.
+ */
+static int erofs_readpage(struct file *file, struct page *page)
+{
+	return iomap_readpage(page, &erofs_iomap_ops);
+}
+
+static void erofs_readahead(struct readahead_control *rac)
+{
+	return iomap_readahead(rac, &erofs_iomap_ops);
+}
+
+static sector_t erofs_bmap(struct address_space *mapping, sector_t block)
+{
+	return iomap_bmap(mapping, block, &erofs_iomap_ops);
+}
+
 static int erofs_prepare_dio(struct kiocb *iocb, struct iov_iter *to)
 {
 	struct inode *inode = file_inode(iocb->ki_filp);
@@ -366,15 +187,6 @@ static int erofs_prepare_dio(struct kiocb *iocb, struct iov_iter *to)
 
 	if (align & blksize_mask)
 		return -EINVAL;
-
-	/*
-	 * Temporarily fall back tail-packing inline to buffered I/O instead
-	 * since tail-packing inline support relies on an iomap core update.
-	 */
-	if (EROFS_I(inode)->datalayout == EROFS_INODE_FLAT_INLINE &&
-	    iocb->ki_pos + iov_iter_count(to) >
-			rounddown(inode->i_size, EROFS_BLKSIZ))
-		return 1;
 	return 0;
 }
 
@@ -402,8 +214,8 @@ static ssize_t erofs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 
 /* for uncompressed (aligned) files and raw access for other files */
 const struct address_space_operations erofs_raw_access_aops = {
-	.readpage = erofs_raw_access_readpage,
-	.readahead = erofs_raw_access_readahead,
+	.readpage = erofs_readpage,
+	.readahead = erofs_readahead,
 	.bmap = erofs_bmap,
 	.direct_IO = noop_direct_IO,
 };
-- 
GitLab


From 9d04b61cc25ded278243f14c498814b1bb30c2f5 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Tue, 10 Aug 2021 14:54:50 +0800
Subject: [PATCH 0040/4878] erofs: directly use wrapper erofs_page_is_managed()
 when shrinking

We already have the wrapper function to identify managed page.

Link: https://lore.kernel.org/r/20210810065450.1320-1-zbestahu@gmail.com
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/zdata.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index c75e94606a41b..684b03b3ad5f8 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -309,7 +309,6 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 {
 	struct z_erofs_pcluster *const pcl =
 		container_of(grp, struct z_erofs_pcluster, obj);
-	struct address_space *const mapping = MNGD_MAPPING(sbi);
 	int i;
 
 	/*
@@ -326,7 +325,7 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 		if (!trylock_page(page))
 			return -EBUSY;
 
-		if (page->mapping != mapping)
+		if (!erofs_page_is_managed(sbi, page))
 			continue;
 
 		/* barrier is implied in the following 'unlock_page' */
-- 
GitLab


From c31a809bd055fefff009d63fcf4363908334f299 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Tue, 10 Aug 2021 15:24:16 +0800
Subject: [PATCH 0041/4878] erofs: remove the mapping parameter from
 erofs_try_to_free_cached_page()

The mapping is not used at all, remove it and update related code.

Link: https://lore.kernel.org/r/20210810072416.1392-1-zbestahu@gmail.com
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/internal.h | 3 +--
 fs/erofs/super.c    | 2 +-
 fs/erofs/zdata.c    | 3 +--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index f1b898bb2a2ba..f71447431dbb2 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -444,8 +444,7 @@ int __init z_erofs_init_zip_subsystem(void);
 void z_erofs_exit_zip_subsystem(void);
 int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 				       struct erofs_workgroup *egrp);
-int erofs_try_to_free_cached_page(struct address_space *mapping,
-				  struct page *page);
+int erofs_try_to_free_cached_page(struct page *page);
 int z_erofs_load_lz4_config(struct super_block *sb,
 			    struct erofs_super_block *dsb,
 			    struct z_erofs_lz4_cfgs *lz4, int len);
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index e8de689c94f4c..a8d49e8fc83a3 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -474,7 +474,7 @@ static int erofs_managed_cache_releasepage(struct page *page, gfp_t gfp_mask)
 	DBG_BUGON(mapping->a_ops != &managed_cache_aops);
 
 	if (PagePrivate(page))
-		ret = erofs_try_to_free_cached_page(mapping, page);
+		ret = erofs_try_to_free_cached_page(page);
 
 	return ret;
 }
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 684b03b3ad5f8..b233877820bb5 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -336,8 +336,7 @@ int erofs_try_to_free_all_cached_pages(struct erofs_sb_info *sbi,
 	return 0;
 }
 
-int erofs_try_to_free_cached_page(struct address_space *mapping,
-				  struct page *page)
+int erofs_try_to_free_cached_page(struct page *page)
 {
 	struct z_erofs_pcluster *const pcl = (void *)page_private(page);
 	int ret = 0;	/* 0 - busy */
-- 
GitLab


From 03bd83842b2b82fa9388cc0f9c999d8e2b7f8a08 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Wed, 18 Aug 2021 23:22:31 +0800
Subject: [PATCH 0042/4878] erofs: add support for the full decompressed length

Previously, there is no need to get the full decompressed length since
EROFS supports partial decompression. However for some other cases
such as fiemap, the full decompressed length is necessary for iomap to
make it work properly.

This patch adds a way to get the full decompressed length. Note that
it takes more metadata overhead and it'd be avoided if possible in the
performance sensitive scenario.

Link: https://lore.kernel.org/r/20210818152231.243691-1-hsiangkao@linux.alibaba.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/internal.h |  5 +++
 fs/erofs/zmap.c     | 95 +++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 92 insertions(+), 8 deletions(-)

diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index f71447431dbb2..03f09b1f43333 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -356,6 +356,11 @@ struct erofs_map_blocks {
 
 /* Flags used by erofs_map_blocks_flatmode() */
 #define EROFS_GET_BLOCKS_RAW    0x0001
+/*
+ * Used to get the exact decompressed length, e.g. fiemap (consider lookback
+ * approach instead if possible since it's more metadata lightweight.)
+ */
+#define EROFS_GET_BLOCKS_FIEMAP	0x0002
 
 /* zmap.c */
 #ifdef CONFIG_EROFS_FS_ZIP
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index f68aea4baed74..c2a31810abeb9 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -212,9 +212,34 @@ static unsigned int decode_compactedbits(unsigned int lobits,
 	return lo;
 }
 
+static int get_compacted_la_distance(unsigned int lclusterbits,
+				     unsigned int encodebits,
+				     unsigned int vcnt, u8 *in, int i)
+{
+	const unsigned int lomask = (1 << lclusterbits) - 1;
+	unsigned int lo, d1 = 0;
+	u8 type;
+
+	DBG_BUGON(i >= vcnt);
+
+	do {
+		lo = decode_compactedbits(lclusterbits, lomask,
+					  in, encodebits * i, &type);
+
+		if (type != Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD)
+			return d1;
+		++d1;
+	} while (++i < vcnt);
+
+	/* vcnt - 1 (Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD) item */
+	if (!(lo & Z_EROFS_VLE_DI_D0_CBLKCNT))
+		d1 += lo - 1;
+	return d1;
+}
+
 static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 				  unsigned int amortizedshift,
-				  unsigned int eofs)
+				  unsigned int eofs, bool lookahead)
 {
 	struct erofs_inode *const vi = EROFS_I(m->inode);
 	const unsigned int lclusterbits = vi->z_logical_clusterbits;
@@ -243,6 +268,11 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 	m->type = type;
 	if (type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD) {
 		m->clusterofs = 1 << lclusterbits;
+
+		/* figure out lookahead_distance: delta[1] if needed */
+		if (lookahead)
+			m->delta[1] = get_compacted_la_distance(lclusterbits,
+						encodebits, vcnt, in, i);
 		if (lo & Z_EROFS_VLE_DI_D0_CBLKCNT) {
 			if (!big_pcluster) {
 				DBG_BUGON(1);
@@ -313,7 +343,7 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
 }
 
 static int compacted_load_cluster_from_disk(struct z_erofs_maprecorder *m,
-					    unsigned long lcn)
+					    unsigned long lcn, bool lookahead)
 {
 	struct inode *const inode = m->inode;
 	struct erofs_inode *const vi = EROFS_I(inode);
@@ -364,11 +394,12 @@ out:
 	err = z_erofs_reload_indexes(m, erofs_blknr(pos));
 	if (err)
 		return err;
-	return unpack_compacted_index(m, amortizedshift, erofs_blkoff(pos));
+	return unpack_compacted_index(m, amortizedshift, erofs_blkoff(pos),
+				      lookahead);
 }
 
 static int z_erofs_load_cluster_from_disk(struct z_erofs_maprecorder *m,
-					  unsigned int lcn)
+					  unsigned int lcn, bool lookahead)
 {
 	const unsigned int datamode = EROFS_I(m->inode)->datalayout;
 
@@ -376,7 +407,7 @@ static int z_erofs_load_cluster_from_disk(struct z_erofs_maprecorder *m,
 		return legacy_load_cluster_from_disk(m, lcn);
 
 	if (datamode == EROFS_INODE_FLAT_COMPRESSION)
-		return compacted_load_cluster_from_disk(m, lcn);
+		return compacted_load_cluster_from_disk(m, lcn, lookahead);
 
 	return -EINVAL;
 }
@@ -399,7 +430,7 @@ static int z_erofs_extent_lookback(struct z_erofs_maprecorder *m,
 
 	/* load extent head logical cluster if needed */
 	lcn -= lookback_distance;
-	err = z_erofs_load_cluster_from_disk(m, lcn);
+	err = z_erofs_load_cluster_from_disk(m, lcn, false);
 	if (err)
 		return err;
 
@@ -450,7 +481,7 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
 	if (m->compressedlcs)
 		goto out;
 
-	err = z_erofs_load_cluster_from_disk(m, lcn);
+	err = z_erofs_load_cluster_from_disk(m, lcn, false);
 	if (err)
 		return err;
 
@@ -498,6 +529,48 @@ err_bonus_cblkcnt:
 	return -EFSCORRUPTED;
 }
 
+static int z_erofs_get_extent_decompressedlen(struct z_erofs_maprecorder *m)
+{
+	struct inode *inode = m->inode;
+	struct erofs_inode *vi = EROFS_I(inode);
+	struct erofs_map_blocks *map = m->map;
+	unsigned int lclusterbits = vi->z_logical_clusterbits;
+	u64 lcn = m->lcn, headlcn = map->m_la >> lclusterbits;
+	int err;
+
+	do {
+		/* handle the last EOF pcluster (no next HEAD lcluster) */
+		if ((lcn << lclusterbits) >= inode->i_size) {
+			map->m_llen = inode->i_size - map->m_la;
+			return 0;
+		}
+
+		err = z_erofs_load_cluster_from_disk(m, lcn, true);
+		if (err)
+			return err;
+
+		if (m->type == Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD) {
+			DBG_BUGON(!m->delta[1] &&
+				  m->clusterofs != 1 << lclusterbits);
+		} else if (m->type == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN ||
+			   m->type == Z_EROFS_VLE_CLUSTER_TYPE_HEAD) {
+			/* go on until the next HEAD lcluster */
+			if (lcn != headlcn)
+				break;
+			m->delta[1] = 1;
+		} else {
+			erofs_err(inode->i_sb, "unknown type %u @ lcn %llu of nid %llu",
+				  m->type, lcn, vi->nid);
+			DBG_BUGON(1);
+			return -EOPNOTSUPP;
+		}
+		lcn += m->delta[1];
+	} while (m->delta[1]);
+
+	map->m_llen = (lcn << lclusterbits) + m->clusterofs - map->m_la;
+	return 0;
+}
+
 int z_erofs_map_blocks_iter(struct inode *inode,
 			    struct erofs_map_blocks *map,
 			    int flags)
@@ -531,7 +604,7 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 	initial_lcn = ofs >> lclusterbits;
 	endoff = ofs & ((1 << lclusterbits) - 1);
 
-	err = z_erofs_load_cluster_from_disk(&m, initial_lcn);
+	err = z_erofs_load_cluster_from_disk(&m, initial_lcn, false);
 	if (err)
 		goto unmap_out;
 
@@ -581,6 +654,12 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 	err = z_erofs_get_extent_compressedlen(&m, initial_lcn);
 	if (err)
 		goto out;
+
+	if (flags & EROFS_GET_BLOCKS_FIEMAP) {
+		err = z_erofs_get_extent_decompressedlen(&m);
+		if (!err)
+			map->m_flags |= EROFS_MAP_FULL_MAPPED;
+	}
 unmap_out:
 	if (m.kaddr)
 		kunmap_atomic(m.kaddr);
-- 
GitLab


From da0b1ebe3457f881d20c59ce0663646da573b32e Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Fri, 13 Aug 2021 13:29:31 +0800
Subject: [PATCH 0043/4878] erofs: add fiemap support with iomap

This adds fiemap support for both uncompressed files and compressed
files by using iomap infrastructure.

Link: https://lore.kernel.org/r/20210813052931.203280-3-hsiangkao@linux.alibaba.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/data.c     | 15 ++++++++++++++-
 fs/erofs/inode.c    |  1 +
 fs/erofs/internal.h |  5 +++++
 fs/erofs/namei.c    |  1 +
 fs/erofs/zmap.c     | 38 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 21a87575ff1b3..035930138fc27 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -5,7 +5,6 @@
  */
 #include "internal.h"
 #include <linux/prefetch.h>
-#include <linux/iomap.h>
 #include <linux/uio.h>
 #include <linux/dax.h>
 #include <trace/events/erofs.h>
@@ -153,6 +152,20 @@ static const struct iomap_ops erofs_iomap_ops = {
 	.iomap_end = erofs_iomap_end,
 };
 
+int erofs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+		 u64 start, u64 len)
+{
+	if (erofs_inode_is_data_compressed(EROFS_I(inode)->datalayout)) {
+#ifdef CONFIG_EROFS_FS_ZIP
+		return iomap_fiemap(inode, fieinfo, start, len,
+				    &z_erofs_iomap_report_ops);
+#else
+		return -EOPNOTSUPP;
+#endif
+	}
+	return iomap_fiemap(inode, fieinfo, start, len, &erofs_iomap_ops);
+}
+
 /*
  * since we dont have write or truncate flows, so no inode
  * locking needs to be held at the moment.
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 42066915b1673..9f0d029bf798f 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -364,6 +364,7 @@ const struct inode_operations erofs_generic_iops = {
 	.getattr = erofs_getattr,
 	.listxattr = erofs_listxattr,
 	.get_acl = erofs_get_acl,
+	.fiemap = erofs_fiemap,
 };
 
 const struct inode_operations erofs_symlink_iops = {
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 03f09b1f43333..1e41fcc13854d 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -15,6 +15,7 @@
 #include <linux/magic.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
+#include <linux/iomap.h>
 #include "erofs_fs.h"
 
 /* redefine pr_fmt "erofs: " */
@@ -363,6 +364,8 @@ struct erofs_map_blocks {
 #define EROFS_GET_BLOCKS_FIEMAP	0x0002
 
 /* zmap.c */
+extern const struct iomap_ops z_erofs_iomap_report_ops;
+
 #ifdef CONFIG_EROFS_FS_ZIP
 int z_erofs_fill_inode(struct inode *inode);
 int z_erofs_map_blocks_iter(struct inode *inode,
@@ -381,6 +384,8 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode,
 /* data.c */
 extern const struct file_operations erofs_file_fops;
 struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr);
+int erofs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+		 u64 start, u64 len);
 
 /* inode.c */
 static inline unsigned long erofs_inode_hash(erofs_nid_t nid)
diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
index a8271ce5e13ff..8629e616028cb 100644
--- a/fs/erofs/namei.c
+++ b/fs/erofs/namei.c
@@ -245,4 +245,5 @@ const struct inode_operations erofs_dir_iops = {
 	.getattr = erofs_getattr,
 	.listxattr = erofs_listxattr,
 	.get_acl = erofs_get_acl,
+	.fiemap = erofs_fiemap,
 };
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index c2a31810abeb9..9fb98d85a3cea 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -675,3 +675,41 @@ out:
 	DBG_BUGON(err < 0 && err != -ENOMEM);
 	return err;
 }
+
+static int z_erofs_iomap_begin_report(struct inode *inode, loff_t offset,
+				loff_t length, unsigned int flags,
+				struct iomap *iomap, struct iomap *srcmap)
+{
+	int ret;
+	struct erofs_map_blocks map = { .m_la = offset };
+
+	ret = z_erofs_map_blocks_iter(inode, &map, EROFS_GET_BLOCKS_FIEMAP);
+	if (map.mpage)
+		put_page(map.mpage);
+	if (ret < 0)
+		return ret;
+
+	iomap->bdev = inode->i_sb->s_bdev;
+	iomap->offset = map.m_la;
+	iomap->length = map.m_llen;
+	if (map.m_flags & EROFS_MAP_MAPPED) {
+		iomap->type = IOMAP_MAPPED;
+		iomap->addr = map.m_pa;
+	} else {
+		iomap->type = IOMAP_HOLE;
+		iomap->addr = IOMAP_NULL_ADDR;
+		/*
+		 * No strict rule how to describe extents for post EOF, yet
+		 * we need do like below. Otherwise, iomap itself will get
+		 * into an endless loop on post EOF.
+		 */
+		if (iomap->offset >= inode->i_size)
+			iomap->length = length + map.m_la - offset;
+	}
+	iomap->flags = 0;
+	return 0;
+}
+
+const struct iomap_ops z_erofs_iomap_report_ops = {
+	.iomap_begin = z_erofs_iomap_begin_report,
+};
-- 
GitLab


From bc267ffd71db12532431e6dcdb8333d7d7dd2f03 Mon Sep 17 00:00:00 2001
From: Gao Xiang <xiang@kernel.org>
Date: Tue, 11 May 2021 00:25:05 +0800
Subject: [PATCH 0044/4878] erofs: fix broken illustration in documentation

Illustration was broken after ReST conversion by accident.
(checked by 'make SPHINXDIRS="filesystems" htmldocs')

Link: https://lore.kernel.org/r/20210510162506.28637-1-xiang@kernel.org
Fixes: e66d8631ddb3 ("docs: filesystems: convert erofs.txt to ReST")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 Documentation/filesystems/erofs.rst | 119 ++++++++++++++--------------
 1 file changed, 59 insertions(+), 60 deletions(-)

diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index 42109e46b80f2..eca63e1ac49c8 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -116,31 +116,31 @@ may not. All metadatas can be now observed in two different spaces (views):
 
     ::
 
-				    |-> aligned with 8B
-					    |-> followed closely
-	+ meta_blkaddr blocks                                      |-> another slot
-	_____________________________________________________________________
-	|  ...   | inode |  xattrs  | extents  | data inline | ... | inode ...
-	|________|_______|(optional)|(optional)|__(optional)_|_____|__________
-		|-> aligned with the inode slot size
-		    .                   .
-		    .                         .
-		.                              .
-		.                                    .
-	    .                                         .
-	    .                                              .
-	.____________________________________________________|-> aligned with 4B
-	| xattr_ibody_header | shared xattrs | inline xattrs |
-	|____________________|_______________|_______________|
-	|->    12 bytes    <-|->x * 4 bytes<-|               .
-			    .                .                 .
-			.                      .                   .
-		.                           .                     .
-	    ._______________________________.______________________.
-	    | id | id | id | id |  ... | id | ent | ... | ent| ... |
-	    |____|____|____|____|______|____|_____|_____|____|_____|
-					    |-> aligned with 4B
-							|-> aligned with 4B
+                                 |-> aligned with 8B
+                                            |-> followed closely
+     + meta_blkaddr blocks                                      |-> another slot
+       _____________________________________________________________________
+     |  ...   | inode |  xattrs  | extents  | data inline | ... | inode ...
+     |________|_______|(optional)|(optional)|__(optional)_|_____|__________
+              |-> aligned with the inode slot size
+                   .                   .
+                 .                         .
+               .                              .
+             .                                    .
+           .                                         .
+         .                                              .
+       .____________________________________________________|-> aligned with 4B
+       | xattr_ibody_header | shared xattrs | inline xattrs |
+       |____________________|_______________|_______________|
+       |->    12 bytes    <-|->x * 4 bytes<-|               .
+                           .                .                 .
+                     .                      .                   .
+                .                           .                     .
+            ._______________________________.______________________.
+            | id | id | id | id |  ... | id | ent | ... | ent| ... |
+            |____|____|____|____|______|____|_____|_____|____|_____|
+                                            |-> aligned with 4B
+                                                        |-> aligned with 4B
 
     Inode could be 32 or 64 bytes, which can be distinguished from a common
     field which all inode versions have -- i_format::
@@ -178,13 +178,13 @@ may not. All metadatas can be now observed in two different spaces (views):
     Each share xattr can also be directly found by the following formula:
          xattr offset = xattr_blkaddr * block_size + 4 * xattr_id
 
-    ::
+::
 
-			    |-> aligned by  4 bytes
-	+ xattr_blkaddr blocks                     |-> aligned with 4 bytes
-	_________________________________________________________________________
-	|  ...   | xattr_entry |  xattr data | ... |  xattr_entry | xattr data  ...
-	|________|_____________|_____________|_____|______________|_______________
+                           |-> aligned by  4 bytes
+    + xattr_blkaddr blocks                     |-> aligned with 4 bytes
+     _________________________________________________________________________
+    |  ...   | xattr_entry |  xattr data | ... |  xattr_entry | xattr data  ...
+    |________|_____________|_____________|_____|______________|_______________
 
 Directories
 -----------
@@ -196,19 +196,18 @@ algorithm (could refer to the related source code).
 
 ::
 
-		    ___________________________
-		    /                           |
-		/              ______________|________________
-		/              /              | nameoff1       | nameoffN-1
-    ____________.______________._______________v________________v__________
-    | dirent | dirent | ... | dirent | filename | filename | ... | filename |
-    |___.0___|____1___|_____|___N-1__|____0_____|____1_____|_____|___N-1____|
-	\                           ^
-	\                          |                           * could have
-	\                         |                             trailing '\0'
-	    \________________________| nameoff0
-
-				Directory block
+                  ___________________________
+                 /                           |
+                /              ______________|________________
+               /              /              | nameoff1       | nameoffN-1
+  ____________.______________._______________v________________v__________
+ | dirent | dirent | ... | dirent | filename | filename | ... | filename |
+ |___.0___|____1___|_____|___N-1__|____0_____|____1_____|_____|___N-1____|
+      \                           ^
+       \                          |                           * could have
+        \                         |                             trailing '\0'
+         \________________________| nameoff0
+                             Directory block
 
 Note that apart from the offset of the first filename, nameoff0 also indicates
 the total number of directory entries in this block since it is no need to
@@ -219,22 +218,22 @@ Compression
 Currently, EROFS supports 4KB fixed-sized output transparent file compression,
 as illustrated below::
 
-	    |---- Variant-Length Extent ----|-------- VLE --------|----- VLE -----
-	    clusterofs                      clusterofs            clusterofs
-	    |                               |                     |   logical data
-    _________v_______________________________v_____________________v_______________
-    ... |    .        |             |        .    |             |  .          | ...
-    ____|____.________|_____________|________.____|_____________|__.__________|____
-	|-> cluster <-|-> cluster <-|-> cluster <-|-> cluster <-|-> cluster <-|
-	    size          size          size          size          size
-	    .                             .                .                   .
-	    .                       .               .                  .
-		.                  .              .                .
-	_______._____________._____________._____________._____________________
-	    ... |             |             |             | ... physical data
-	_______|_____________|_____________|_____________|_____________________
-		|-> cluster <-|-> cluster <-|-> cluster <-|
-		    size          size          size
+          |<-    variable-sized extent    ->|<-       VLE         ->|
+        clusterofs                        clusterofs              clusterofs
+          |                                 |                       |
+ _________v_________________________________v_______________________v________
+ ... |    .         |              |        .     |              |  .   ...
+ ____|____._________|______________|________.___ _|______________|__.________
+     |-> lcluster <-|-> lcluster <-|-> lcluster <-|-> lcluster <-|
+          size           size           size           size   .             .
+           .                            .                .              .
+            .                       .               .               .
+             .                   .              .               .
+       _______.______________.______________.______________._________________
+          ... |              |              |              | ...
+       _______|______________|______________|______________|_________________
+              |-> pcluster <-|-> pcluster <-|-> pcluster <-|
+                    size           size           size
 
 Currently each on-disk physical cluster can contain 4KB (un)compressed data
 at most. For each logical cluster, there is a corresponding on-disk index to
-- 
GitLab


From 852782683ff735abac65085f2adeb10d204ef99d Mon Sep 17 00:00:00 2001
From: Gao Xiang <xiang@kernel.org>
Date: Tue, 11 May 2021 16:44:14 +0800
Subject: [PATCH 0045/4878] erofs: update documentation about data compression

Add more description about (NON)HEAD lclusters, and the new big
pcluster feature.

Link: https://lore.kernel.org/r/20210511084414.21305-1-xiang@kernel.org
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 Documentation/filesystems/erofs.rst | 68 +++++++++++++++++++++--------
 1 file changed, 49 insertions(+), 19 deletions(-)

diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index eca63e1ac49c8..868e3972227f8 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -50,8 +50,8 @@ Here is the main features of EROFS:
 
  - Support POSIX.1e ACLs by using xattrs;
 
- - Support transparent file compression as an option:
-   LZ4 algorithm with 4 KB fixed-sized output compression for high performance.
+ - Support transparent data compression as an option:
+   LZ4 algorithm with the fixed-sized output compression for high performance.
 
 The following git tree provides the file system user-space tools under
 development (ex, formatting tool mkfs.erofs):
@@ -213,10 +213,21 @@ Note that apart from the offset of the first filename, nameoff0 also indicates
 the total number of directory entries in this block since it is no need to
 introduce another on-disk field at all.
 
-Compression
------------
-Currently, EROFS supports 4KB fixed-sized output transparent file compression,
-as illustrated below::
+Data compression
+----------------
+EROFS implements LZ4 fixed-sized output compression which generates fixed-sized
+compressed data blocks from variable-sized input in contrast to other existing
+fixed-sized input solutions. Relatively higher compression ratios can be gotten
+by using fixed-sized output compression since nowadays popular data compression
+algorithms are mostly LZ77-based and such fixed-sized output approach can be
+benefited from the historical dictionary (aka. sliding window).
+
+In details, original (uncompressed) data is turned into several variable-sized
+extents and in the meanwhile, compressed into physical clusters (pclusters).
+In order to record each variable-sized extent, logical clusters (lclusters) are
+introduced as the basic unit of compress indexes to indicate whether a new
+extent is generated within the range (HEAD) or not (NONHEAD). Lclusters are now
+fixed in block size, as illustrated below::
 
           |<-    variable-sized extent    ->|<-       VLE         ->|
         clusterofs                        clusterofs              clusterofs
@@ -225,18 +236,37 @@ as illustrated below::
  ... |    .         |              |        .     |              |  .   ...
  ____|____._________|______________|________.___ _|______________|__.________
      |-> lcluster <-|-> lcluster <-|-> lcluster <-|-> lcluster <-|
-          size           size           size           size   .             .
-           .                            .                .              .
-            .                       .               .               .
-             .                   .              .               .
-       _______.______________.______________.______________._________________
+          (HEAD)        (NONHEAD)       (HEAD)        (NONHEAD)    .
+           .             CBLKCNT            .                    .
+            .                               .                  .
+             .                              .                .
+       _______._____________________________.______________._________________
           ... |              |              |              | ...
        _______|______________|______________|______________|_________________
-              |-> pcluster <-|-> pcluster <-|-> pcluster <-|
-                    size           size           size
-
-Currently each on-disk physical cluster can contain 4KB (un)compressed data
-at most. For each logical cluster, there is a corresponding on-disk index to
-describe its cluster type, physical cluster address, etc.
-
-See "struct z_erofs_vle_decompressed_index" in erofs_fs.h for more details.
+              |->      big pcluster       <-|-> pcluster <-|
+
+A physical cluster can be seen as a container of physical compressed blocks
+which contains compressed data. Previously, only lcluster-sized (4KB) pclusters
+were supported. After big pcluster feature is introduced (available since
+Linux v5.13), pcluster can be a multiple of lcluster size.
+
+For each HEAD lcluster, clusterofs is recorded to indicate where a new extent
+starts and blkaddr is used to seek the compressed data. For each NONHEAD
+lcluster, delta0 and delta1 are available instead of blkaddr to indicate the
+distance to its HEAD lcluster and the next HEAD lcluster. A PLAIN lcluster is
+also a HEAD lcluster except that its data is uncompressed. See the comments
+around "struct z_erofs_vle_decompressed_index" in erofs_fs.h for more details.
+
+If big pcluster is enabled, pcluster size in lclusters needs to be recorded as
+well. Let the delta0 of the first NONHEAD lcluster store the compressed block
+count with a special flag as a new called CBLKCNT NONHEAD lcluster. It's easy
+to understand its delta0 is constantly 1, as illustrated below::
+
+   __________________________________________________________
+  | HEAD |  NONHEAD  | NONHEAD | ... | NONHEAD | HEAD | HEAD |
+  |__:___|_(CBLKCNT)_|_________|_____|_________|__:___|____:_|
+     |<----- a big pcluster (with CBLKCNT) ------>|<--  -->|
+           a lcluster-sized pcluster (without CBLKCNT) ^
+
+If another HEAD follows a HEAD lcluster, there is no room to record CBLKCNT,
+but it's easy to know the size of such pcluster is 1 lcluster as well.
-- 
GitLab


From 4e82e57024f9f473f4bf6f702cddd81365a017a7 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Fri, 20 Aug 2021 18:00:18 +0800
Subject: [PATCH 0046/4878] erofs: introduce chunk-based file on-disk format

Currently, uncompressed data except for tail-packing inline is
consecutive on disk.

In order to support chunk-based data deduplication, add a new
corresponding inode data layout.

In the future, the data source of chunks can be either (un)compressed.

Link: https://lore.kernel.org/r/20210820100019.208490-1-hsiangkao@linux.alibaba.com
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 Documentation/filesystems/erofs.rst | 16 ++++++++--
 fs/erofs/erofs_fs.h                 | 47 +++++++++++++++++++++++++++--
 2 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index 868e3972227f8..b97579b7d8fbc 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -156,13 +156,14 @@ may not. All metadatas can be now observed in two different spaces (views):
 
     Xattrs, extents, data inline are followed by the corresponding inode with
     proper alignment, and they could be optional for different data mappings.
-    _currently_ total 4 valid data mappings are supported:
+    _currently_ total 5 data layouts are supported:
 
     ==  ====================================================================
      0  flat file data without data inline (no extent);
      1  fixed-sized output data compression (with non-compacted indexes);
      2  flat file data with tail packing data inline (no extent);
-     3  fixed-sized output data compression (with compacted indexes, v5.3+).
+     3  fixed-sized output data compression (with compacted indexes, v5.3+);
+     4  chunk-based file (v5.15+).
     ==  ====================================================================
 
     The size of the optional xattrs is indicated by i_xattr_count in inode
@@ -213,6 +214,17 @@ Note that apart from the offset of the first filename, nameoff0 also indicates
 the total number of directory entries in this block since it is no need to
 introduce another on-disk field at all.
 
+Chunk-based file
+----------------
+In order to support chunk-based data deduplication, a new inode data layout has
+been supported since Linux v5.15: Files are split in equal-sized data chunks
+with ``extents`` area of the inode metadata indicating how to get the chunk
+data: these can be simply as a 4-byte block address array or in the 8-byte
+chunk index form (see struct erofs_inode_chunk_index in erofs_fs.h for more
+details.)
+
+By the way, chunk-based files are all uncompressed for now.
+
 Data compression
 ----------------
 EROFS implements LZ4 fixed-sized output compression which generates fixed-sized
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 0f8da74570b44..b0b23f41abc38 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -4,6 +4,7 @@
  *
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
+ * Copyright (C) 2021, Alibaba Cloud
  */
 #ifndef __EROFS_FS_H
 #define __EROFS_FS_H
@@ -19,10 +20,12 @@
 #define EROFS_FEATURE_INCOMPAT_LZ4_0PADDING	0x00000001
 #define EROFS_FEATURE_INCOMPAT_COMPR_CFGS	0x00000002
 #define EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER	0x00000002
+#define EROFS_FEATURE_INCOMPAT_CHUNKED_FILE	0x00000004
 #define EROFS_ALL_FEATURE_INCOMPAT		\
 	(EROFS_FEATURE_INCOMPAT_LZ4_0PADDING | \
 	 EROFS_FEATURE_INCOMPAT_COMPR_CFGS | \
-	 EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER)
+	 EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER | \
+	 EROFS_FEATURE_INCOMPAT_CHUNKED_FILE)
 
 #define EROFS_SB_EXTSLOT_SIZE	16
 
@@ -64,13 +67,16 @@ struct erofs_super_block {
  * inode, [xattrs], last_inline_data, ... | ... | no-holed data
  * 3 - inode compression D:
  * inode, [xattrs], map_header, extents ... | ...
- * 4~7 - reserved
+ * 4 - inode chunk-based E:
+ * inode, [xattrs], chunk indexes ... | ...
+ * 5~7 - reserved
  */
 enum {
 	EROFS_INODE_FLAT_PLAIN			= 0,
 	EROFS_INODE_FLAT_COMPRESSION_LEGACY	= 1,
 	EROFS_INODE_FLAT_INLINE			= 2,
 	EROFS_INODE_FLAT_COMPRESSION		= 3,
+	EROFS_INODE_CHUNK_BASED			= 4,
 	EROFS_INODE_DATALAYOUT_MAX
 };
 
@@ -90,6 +96,19 @@ static inline bool erofs_inode_is_data_compressed(unsigned int datamode)
 #define EROFS_I_ALL	\
 	((1 << (EROFS_I_DATALAYOUT_BIT + EROFS_I_DATALAYOUT_BITS)) - 1)
 
+/* indicate chunk blkbits, thus 'chunksize = blocksize << chunk blkbits' */
+#define EROFS_CHUNK_FORMAT_BLKBITS_MASK		0x001F
+/* with chunk indexes or just a 4-byte blkaddr array */
+#define EROFS_CHUNK_FORMAT_INDEXES		0x0020
+
+#define EROFS_CHUNK_FORMAT_ALL	\
+	(EROFS_CHUNK_FORMAT_BLKBITS_MASK | EROFS_CHUNK_FORMAT_INDEXES)
+
+struct erofs_inode_chunk_info {
+	__le16 format;		/* chunk blkbits, etc. */
+	__le16 reserved;
+};
+
 /* 32-byte reduced form of an ondisk inode */
 struct erofs_inode_compact {
 	__le16 i_format;	/* inode format hints */
@@ -107,6 +126,9 @@ struct erofs_inode_compact {
 
 		/* for device files, used to indicate old/new device # */
 		__le32 rdev;
+
+		/* for chunk-based files, it contains the summary info */
+		struct erofs_inode_chunk_info c;
 	} i_u;
 	__le32 i_ino;           /* only used for 32-bit stat compatibility */
 	__le16 i_uid;
@@ -135,6 +157,9 @@ struct erofs_inode_extended {
 
 		/* for device files, used to indicate old/new device # */
 		__le32 rdev;
+
+		/* for chunk-based files, it contains the summary info */
+		struct erofs_inode_chunk_info c;
 	} i_u;
 
 	/* only used for 32-bit stat compatibility */
@@ -204,6 +229,19 @@ static inline unsigned int erofs_xattr_entry_size(struct erofs_xattr_entry *e)
 				 e->e_name_len + le16_to_cpu(e->e_value_size));
 }
 
+/* represent a zeroed chunk (hole) */
+#define EROFS_NULL_ADDR			-1
+
+/* 4-byte block address array */
+#define EROFS_BLOCK_MAP_ENTRY_SIZE	sizeof(__le32)
+
+/* 8-byte inode chunk indexes */
+struct erofs_inode_chunk_index {
+	__le16 advise;		/* always 0, don't care for now */
+	__le16 device_id;	/* back-end storage id, always 0 for now */
+	__le32 blkaddr;		/* start block address of this inode chunk */
+};
+
 /* maximum supported size of a physical compression cluster */
 #define Z_EROFS_PCLUSTER_MAX_SIZE	(1024 * 1024)
 
@@ -338,9 +376,14 @@ static inline void erofs_check_ondisk_layout_definitions(void)
 	BUILD_BUG_ON(sizeof(struct erofs_inode_extended) != 64);
 	BUILD_BUG_ON(sizeof(struct erofs_xattr_ibody_header) != 12);
 	BUILD_BUG_ON(sizeof(struct erofs_xattr_entry) != 4);
+	BUILD_BUG_ON(sizeof(struct erofs_inode_chunk_info) != 4);
+	BUILD_BUG_ON(sizeof(struct erofs_inode_chunk_index) != 8);
 	BUILD_BUG_ON(sizeof(struct z_erofs_map_header) != 8);
 	BUILD_BUG_ON(sizeof(struct z_erofs_vle_decompressed_index) != 8);
 	BUILD_BUG_ON(sizeof(struct erofs_dirent) != 12);
+	/* keep in sync between 2 index structures for better extendibility */
+	BUILD_BUG_ON(sizeof(struct erofs_inode_chunk_index) !=
+		     sizeof(struct z_erofs_vle_decompressed_index));
 
 	BUILD_BUG_ON(BIT(Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS) <
 		     Z_EROFS_VLE_CLUSTER_TYPE_MAX - 1);
-- 
GitLab


From 03f484b511f0d73cf603eb88881a90493732a4e1 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Fri, 20 Aug 2021 18:00:19 +0800
Subject: [PATCH 0047/4878] erofs: support reading chunk-based uncompressed
 files

Add runtime support for chunk-based uncompressed files
described in the previous patch.

Link: https://lore.kernel.org/r/20210820100019.208490-2-hsiangkao@linux.alibaba.com
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/data.c     | 90 ++++++++++++++++++++++++++++++++++++++++-----
 fs/erofs/inode.c    | 18 ++++++++-
 fs/erofs/internal.h |  5 +++
 3 files changed, 102 insertions(+), 11 deletions(-)

diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 035930138fc27..e944d9e26c88e 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -2,6 +2,7 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
+ * Copyright (C) 2021, Alibaba Cloud
  */
 #include "internal.h"
 #include <linux/prefetch.h>
@@ -37,13 +38,6 @@ static int erofs_map_blocks_flatmode(struct inode *inode,
 	nblocks = DIV_ROUND_UP(inode->i_size, PAGE_SIZE);
 	lastblk = nblocks - tailendpacking;
 
-	if (offset >= inode->i_size) {
-		/* leave out-of-bound access unmapped */
-		map->m_flags = 0;
-		map->m_plen = 0;
-		goto out;
-	}
-
 	/* there is no hole in flatmode */
 	map->m_flags = EROFS_MAP_MAPPED;
 
@@ -78,14 +72,90 @@ static int erofs_map_blocks_flatmode(struct inode *inode,
 		goto err_out;
 	}
 
-out:
 	map->m_llen = map->m_plen;
-
 err_out:
 	trace_erofs_map_blocks_flatmode_exit(inode, map, flags, 0);
 	return err;
 }
 
+static int erofs_map_blocks(struct inode *inode,
+			    struct erofs_map_blocks *map, int flags)
+{
+	struct super_block *sb = inode->i_sb;
+	struct erofs_inode *vi = EROFS_I(inode);
+	struct erofs_inode_chunk_index *idx;
+	struct page *page;
+	u64 chunknr;
+	unsigned int unit;
+	erofs_off_t pos;
+	int err = 0;
+
+	if (map->m_la >= inode->i_size) {
+		/* leave out-of-bound access unmapped */
+		map->m_flags = 0;
+		map->m_plen = 0;
+		goto out;
+	}
+
+	if (vi->datalayout != EROFS_INODE_CHUNK_BASED)
+		return erofs_map_blocks_flatmode(inode, map, flags);
+
+	if (vi->chunkformat & EROFS_CHUNK_FORMAT_INDEXES)
+		unit = sizeof(*idx);			/* chunk index */
+	else
+		unit = EROFS_BLOCK_MAP_ENTRY_SIZE;	/* block map */
+
+	chunknr = map->m_la >> vi->chunkbits;
+	pos = ALIGN(iloc(EROFS_SB(sb), vi->nid) + vi->inode_isize +
+		    vi->xattr_isize, unit) + unit * chunknr;
+
+	page = erofs_get_meta_page(inode->i_sb, erofs_blknr(pos));
+	if (IS_ERR(page))
+		return PTR_ERR(page);
+
+	map->m_la = chunknr << vi->chunkbits;
+	map->m_plen = min_t(erofs_off_t, 1UL << vi->chunkbits,
+			    roundup(inode->i_size - map->m_la, EROFS_BLKSIZ));
+
+	/* handle block map */
+	if (!(vi->chunkformat & EROFS_CHUNK_FORMAT_INDEXES)) {
+		__le32 *blkaddr = page_address(page) + erofs_blkoff(pos);
+
+		if (le32_to_cpu(*blkaddr) == EROFS_NULL_ADDR) {
+			map->m_flags = 0;
+		} else {
+			map->m_pa = blknr_to_addr(le32_to_cpu(*blkaddr));
+			map->m_flags = EROFS_MAP_MAPPED;
+		}
+		goto out_unlock;
+	}
+	/* parse chunk indexes */
+	idx = page_address(page) + erofs_blkoff(pos);
+	switch (le32_to_cpu(idx->blkaddr)) {
+	case EROFS_NULL_ADDR:
+		map->m_flags = 0;
+		break;
+	default:
+		/* only one device is supported for now */
+		if (idx->device_id) {
+			erofs_err(sb, "invalid device id %u @ %llu for nid %llu",
+				  le16_to_cpu(idx->device_id),
+				  chunknr, vi->nid);
+			err = -EFSCORRUPTED;
+			goto out_unlock;
+		}
+		map->m_pa = blknr_to_addr(le32_to_cpu(idx->blkaddr));
+		map->m_flags = EROFS_MAP_MAPPED;
+		break;
+	}
+out_unlock:
+	unlock_page(page);
+	put_page(page);
+out:
+	map->m_llen = map->m_plen;
+	return err;
+}
+
 static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 		unsigned int flags, struct iomap *iomap, struct iomap *srcmap)
 {
@@ -95,7 +165,7 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	map.m_la = offset;
 	map.m_llen = length;
 
-	ret = erofs_map_blocks_flatmode(inode, &map, EROFS_GET_BLOCKS_RAW);
+	ret = erofs_map_blocks(inode, &map, EROFS_GET_BLOCKS_RAW);
 	if (ret < 0)
 		return ret;
 
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 9f0d029bf798f..c5c7237843a63 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -2,6 +2,7 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
+ * Copyright (C) 2021, Alibaba Cloud
  */
 #include "xattr.h"
 
@@ -122,7 +123,9 @@ static struct page *erofs_read_inode(struct inode *inode,
 		/* total blocks for compressed files */
 		if (erofs_inode_is_data_compressed(vi->datalayout))
 			nblks = le32_to_cpu(die->i_u.compressed_blocks);
-
+		else if (vi->datalayout == EROFS_INODE_CHUNK_BASED)
+			/* fill chunked inode summary info */
+			vi->chunkformat = le16_to_cpu(die->i_u.c.format);
 		kfree(copied);
 		break;
 	case EROFS_INODE_LAYOUT_COMPACT:
@@ -160,6 +163,8 @@ static struct page *erofs_read_inode(struct inode *inode,
 		inode->i_size = le32_to_cpu(dic->i_size);
 		if (erofs_inode_is_data_compressed(vi->datalayout))
 			nblks = le32_to_cpu(dic->i_u.compressed_blocks);
+		else if (vi->datalayout == EROFS_INODE_CHUNK_BASED)
+			vi->chunkformat = le16_to_cpu(dic->i_u.c.format);
 		break;
 	default:
 		erofs_err(inode->i_sb,
@@ -169,6 +174,17 @@ static struct page *erofs_read_inode(struct inode *inode,
 		goto err_out;
 	}
 
+	if (vi->datalayout == EROFS_INODE_CHUNK_BASED) {
+		if (!(vi->chunkformat & EROFS_CHUNK_FORMAT_ALL)) {
+			erofs_err(inode->i_sb,
+				  "unsupported chunk format %x of nid %llu",
+				  vi->chunkformat, vi->nid);
+			err = -EOPNOTSUPP;
+			goto err_out;
+		}
+		vi->chunkbits = LOG_BLOCK_SIZE +
+			(vi->chunkformat & EROFS_CHUNK_FORMAT_BLKBITS_MASK);
+	}
 	inode->i_mtime.tv_sec = inode->i_ctime.tv_sec;
 	inode->i_atime.tv_sec = inode->i_ctime.tv_sec;
 	inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 1e41fcc13854d..4fcfd18aa80db 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -2,6 +2,7 @@
 /*
  * Copyright (C) 2017-2018 HUAWEI, Inc.
  *             https://www.huawei.com/
+ * Copyright (C) 2021, Alibaba Cloud
  */
 #ifndef __EROFS_INTERNAL_H
 #define __EROFS_INTERNAL_H
@@ -261,6 +262,10 @@ struct erofs_inode {
 
 	union {
 		erofs_blk_t raw_blkaddr;
+		struct {
+			unsigned short	chunkformat;
+			unsigned char	chunkbits;
+		};
 #ifdef CONFIG_EROFS_FS_ZIP
 		struct {
 			unsigned short z_advise;
-- 
GitLab


From f60c7302a578b9076f0b00d0fc5c69b839d7abdf Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Wed, 25 Aug 2021 20:07:57 +0800
Subject: [PATCH 0048/4878] erofs: fix double free of 'copied'

Dan reported a new smatch warning [1]
"fs/erofs/inode.c:210 erofs_read_inode() error: double free of 'copied'"

Due to new chunk-based format handling logic, the error path can be
called after kfree(copied).

Set "copied = NULL" after kfree(copied) to fix this.

[1] https://lore.kernel.org/r/202108251030.bELQozR7-lkp@intel.com

Link: https://lore.kernel.org/r/20210825120757.11034-1-hsiangkao@linux.alibaba.com
Fixes: c5aa903a59db ("erofs: support reading chunk-based uncompressed files")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index c5c7237843a63..5573e466a4264 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -127,6 +127,7 @@ static struct page *erofs_read_inode(struct inode *inode,
 			/* fill chunked inode summary info */
 			vi->chunkformat = le16_to_cpu(die->i_u.c.format);
 		kfree(copied);
+		copied = NULL;
 		break;
 	case EROFS_INODE_LAYOUT_COMPACT:
 		vi->inode_isize = sizeof(struct erofs_inode_compact);
-- 
GitLab


From 8f662a7c85816a4d566ee5c49c5115af9848407e Mon Sep 17 00:00:00 2001
From: Randall Huang <huangrandall@google.com>
Date: Fri, 1 Oct 2021 10:50:50 +0800
Subject: [PATCH 0049/4878] ANDROID: add iov_iter_bvec symbol to symbol list

Add iov_iter_bvec symbol to fix the modpost error

Bug: 200034376
Signed-off-by: Randall Huang <huangrandall@google.com>
Change-Id: Ib04054f1e0a04173463a72ff399afb7d1342f7f7
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 419bbb187d9bf..571b659fbfec4 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -929,6 +929,7 @@
   __ioremap
   io_schedule_timeout
   iounmap
+  iov_iter_bvec
   iput
   __irq_alloc_descs
   irq_create_mapping_affinity
-- 
GitLab


From b643778ad49dc1825634450050a7b1b7c5da6d1f Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Thu, 15 Jul 2021 09:58:05 -0700
Subject: [PATCH 0050/4878] iomap: Don't create iomap_page objects for inline
 files

In iomap_readpage_actor, don't create iop objects for inline inodes.
Otherwise, iomap_read_inline_data will set PageUptodate without setting
iop->uptodate, and iomap_page_release will eventually complain.

To prevent this kind of bug from occurring in the future, make sure the
page doesn't have private data attached in iomap_read_inline_data.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/iomap/buffered-io.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 167d6fd93253b..9045ee5ccc3e0 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -215,6 +215,7 @@ iomap_read_inline_data(struct inode *inode, struct page *page,
 	if (PageUptodate(page))
 		return;
 
+	BUG_ON(page_has_private(page));
 	BUG_ON(page->index);
 	BUG_ON(size > PAGE_SIZE - offset_in_page(iomap->inline_data));
 
@@ -239,7 +240,7 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
 {
 	struct iomap_readpage_ctx *ctx = data;
 	struct page *page = ctx->cur_page;
-	struct iomap_page *iop = iomap_page_create(inode, page);
+	struct iomap_page *iop;
 	bool same_page = false, is_contig = false;
 	loff_t orig_pos = pos;
 	unsigned poff, plen;
@@ -252,6 +253,7 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
 	}
 
 	/* zero post-eof blocks as the page may be mapped */
+	iop = iomap_page_create(inode, page);
 	iomap_adjust_read_range(inode, iop, &pos, length, &poff, &plen);
 	if (plen == 0)
 		goto done;
-- 
GitLab


From 4c646eceff35f0bfee4c67285c6963ac2db6849e Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Tue, 3 Aug 2021 09:38:22 -0700
Subject: [PATCH 0051/4878] iomap: support reading inline data from non-zero
 pos

The existing inline data support only works for cases where the entire
file is stored as inline data.  For larger files, EROFS stores the
initial blocks separately and the remainder of the file ("file tail")
adjacent to the inode.  Generalise inline data to allow reading the
inline file tail.  Tails may not cross a page boundary in memory.

We currently have no filesystems that support tails and writing,
so that case is currently disabled (see iomap_write_begin_inline).

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 fs/iomap/buffered-io.c | 42 ++++++++++++++++++++++++++++++------------
 fs/iomap/direct-io.c   | 10 ++++++----
 include/linux/iomap.h  | 18 ++++++++++++++++++
 3 files changed, 54 insertions(+), 16 deletions(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 9045ee5ccc3e0..8695e786d4551 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -205,25 +205,32 @@ struct iomap_readpage_ctx {
 	struct readahead_control *rac;
 };
 
-static void
-iomap_read_inline_data(struct inode *inode, struct page *page,
+static int iomap_read_inline_data(struct inode *inode, struct page *page,
 		struct iomap *iomap)
 {
-	size_t size = i_size_read(inode);
+	size_t size = i_size_read(inode) - iomap->offset;
 	void *addr;
 
 	if (PageUptodate(page))
-		return;
+		return 0;
 
-	BUG_ON(page_has_private(page));
-	BUG_ON(page->index);
-	BUG_ON(size > PAGE_SIZE - offset_in_page(iomap->inline_data));
+	/* inline data must start page aligned in the file */
+	if (WARN_ON_ONCE(offset_in_page(iomap->offset)))
+		return -EIO;
+	if (WARN_ON_ONCE(size > PAGE_SIZE -
+			 offset_in_page(iomap->inline_data)))
+		return -EIO;
+	if (WARN_ON_ONCE(size > iomap->length))
+		return -EIO;
+	if (WARN_ON_ONCE(page_has_private(page)))
+		return -EIO;
 
 	addr = kmap_atomic(page);
 	memcpy(addr, iomap->inline_data, size);
 	memset(addr + size, 0, PAGE_SIZE - size);
 	kunmap_atomic(addr);
 	SetPageUptodate(page);
+	return 0;
 }
 
 static inline bool iomap_block_needs_zeroing(struct inode *inode,
@@ -247,8 +254,10 @@ iomap_readpage_actor(struct inode *inode, loff_t pos, loff_t length, void *data,
 	sector_t sector;
 
 	if (iomap->type == IOMAP_INLINE) {
-		WARN_ON_ONCE(pos);
-		iomap_read_inline_data(inode, page, iomap);
+		int ret = iomap_read_inline_data(inode, page, iomap);
+
+		if (ret)
+			return ret;
 		return PAGE_SIZE;
 	}
 
@@ -589,6 +598,15 @@ __iomap_write_begin(struct inode *inode, loff_t pos, unsigned len, int flags,
 	return 0;
 }
 
+static int iomap_write_begin_inline(struct inode *inode,
+		struct page *page, struct iomap *srcmap)
+{
+	/* needs more work for the tailpacking case; disable for now */
+	if (WARN_ON_ONCE(srcmap->offset != 0))
+		return -EIO;
+	return iomap_read_inline_data(inode, page, srcmap);
+}
+
 static int
 iomap_write_begin(struct inode *inode, loff_t pos, unsigned len, unsigned flags,
 		struct page **pagep, struct iomap *iomap, struct iomap *srcmap)
@@ -618,7 +636,7 @@ iomap_write_begin(struct inode *inode, loff_t pos, unsigned len, unsigned flags,
 	}
 
 	if (srcmap->type == IOMAP_INLINE)
-		iomap_read_inline_data(inode, page, srcmap);
+		status = iomap_write_begin_inline(inode, page, srcmap);
 	else if (iomap->flags & IOMAP_F_BUFFER_HEAD)
 		status = __block_write_begin_int(page, pos, len, NULL, srcmap);
 	else
@@ -696,11 +714,11 @@ static size_t iomap_write_end_inline(struct inode *inode, struct page *page,
 	void *addr;
 
 	WARN_ON_ONCE(!PageUptodate(page));
-	BUG_ON(pos + copied > PAGE_SIZE - offset_in_page(iomap->inline_data));
+	BUG_ON(!iomap_inline_data_valid(iomap));
 
 	flush_dcache_page(page);
 	addr = kmap_atomic(page);
-	memcpy(iomap->inline_data + pos, addr + pos, copied);
+	memcpy(iomap_inline_data(iomap, pos), addr + pos, copied);
 	kunmap_atomic(addr);
 
 	mark_inode_dirty(inode);
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 933f234d5becd..53e3cde0e3079 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -348,23 +348,25 @@ iomap_dio_inline_actor(struct inode *inode, loff_t pos, loff_t length,
 		struct iomap_dio *dio, struct iomap *iomap)
 {
 	struct iov_iter *iter = dio->submit.iter;
+	void *inline_data = iomap_inline_data(iomap, pos);
 	size_t copied;
 
-	BUG_ON(pos + length > PAGE_SIZE - offset_in_page(iomap->inline_data));
+	if (WARN_ON_ONCE(!iomap_inline_data_valid(iomap)))
+		return -EIO;
 
 	if (dio->flags & IOMAP_DIO_WRITE) {
 		loff_t size = inode->i_size;
 
 		if (pos > size)
-			memset(iomap->inline_data + size, 0, pos - size);
-		copied = copy_from_iter(iomap->inline_data + pos, length, iter);
+			memset(iomap_inline_data(iomap, size), 0, pos - size);
+		copied = copy_from_iter(inline_data, length, iter);
 		if (copied) {
 			if (pos + copied > size)
 				i_size_write(inode, pos + copied);
 			mark_inode_dirty(inode);
 		}
 	} else {
-		copied = copy_to_iter(iomap->inline_data + pos, length, iter);
+		copied = copy_to_iter(inline_data, length, iter);
 	}
 	dio->size += copied;
 	return copied;
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 5bd3cac4df9cb..e5f692dec41d2 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -96,6 +96,24 @@ iomap_sector(struct iomap *iomap, loff_t pos)
 	return (iomap->addr + pos - iomap->offset) >> SECTOR_SHIFT;
 }
 
+/*
+ * Returns the inline data pointer for logical offset @pos.
+ */
+static inline void *iomap_inline_data(struct iomap *iomap, loff_t pos)
+{
+	return iomap->inline_data + pos - iomap->offset;
+}
+
+/*
+ * Check if the mapping's length is within the valid range for inline data.
+ * This is used to guard against accessing data beyond the page inline_data
+ * points at.
+ */
+static inline bool iomap_inline_data_valid(struct iomap *iomap)
+{
+	return iomap->length <= PAGE_SIZE - offset_in_page(iomap->inline_data);
+}
+
 /*
  * When a filesystem sets page_ops in an iomap mapping it returns, page_prepare
  * and page_done will be called for each page written to.  This only applies to
-- 
GitLab


From 63fa67820a6dd052a4bb38c37edc1b00da2b8533 Mon Sep 17 00:00:00 2001
From: Tai Kuo <taikuo@google.com>
Date: Tue, 5 Oct 2021 20:06:11 +0800
Subject: [PATCH 0052/4878] ANDROID: update symbol list for device tree parsing

device_get_child_node_count
device_get_next_child_node
fwnode_property_read_u32_array

Bug: 193793095
Signed-off-by: Tai Kuo <taikuo@google.com>
Change-Id: Ia5397f7323fb35fe3de426cc19ff375d31b44f2f
---
 android/abi_gki_aarch64_generic | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 571b659fbfec4..a7e607d94a38f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -316,7 +316,9 @@
   device_destroy
   device_find_child
   device_for_each_child
+  device_get_child_node_count
   device_get_dma_attr
+  device_get_next_child_node
   device_initialize
   device_init_wakeup
   device_link_add
@@ -750,6 +752,7 @@
   full_name_hash
   fwnode_get_name
   fwnode_gpiod_get_index
+  fwnode_property_read_u32_array
   gcd
   generic_file_llseek
   generic_handle_irq
-- 
GitLab


From d570c48dd37dbe8fc6875d4461d01a9554ae2560 Mon Sep 17 00:00:00 2001
From: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Date: Mon, 28 Jun 2021 10:45:09 -0300
Subject: [PATCH 0053/4878] tty: Fix out-of-bound vmalloc access in imageblit

[ Upstream commit 3b0c406124719b625b1aba431659f5cdc24a982c ]

This issue happens when a userspace program does an ioctl
FBIOPUT_VSCREENINFO passing the fb_var_screeninfo struct
containing only the fields xres, yres, and bits_per_pixel
with values.

If this struct is the same as the previous ioctl, the
vc_resize() detects it and doesn't call the resize_screen(),
leaving the fb_var_screeninfo incomplete. And this leads to
the updatescrollmode() calculates a wrong value to
fbcon_display->vrows, which makes the real_y() return a
wrong value of y, and that value, eventually, causes
the imageblit to access an out-of-bound address value.

To solve this issue I made the resize_screen() be called
even if the screen does not need any resizing, so it will
"fix and fill" the fb_var_screeninfo independently.

Cc: stable <stable@vger.kernel.org> # after 5.15-rc2 is out, give it time to bake
Reported-and-tested-by: syzbot+858dc7a2f7ef07c2c219@syzkaller.appspotmail.com
Signed-off-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Link: https://lore.kernel.org/r/20210628134509.15895-1-igormtorrente@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/vt/vt.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index cea40ef090b77..a7ee1171eeb3e 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1220,8 +1220,25 @@ static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
 	new_row_size = new_cols << 1;
 	new_screen_size = new_row_size * new_rows;
 
-	if (new_cols == vc->vc_cols && new_rows == vc->vc_rows)
-		return 0;
+	if (new_cols == vc->vc_cols && new_rows == vc->vc_rows) {
+		/*
+		 * This function is being called here to cover the case
+		 * where the userspace calls the FBIOPUT_VSCREENINFO twice,
+		 * passing the same fb_var_screeninfo containing the fields
+		 * yres/xres equal to a number non-multiple of vc_font.height
+		 * and yres_virtual/xres_virtual equal to number lesser than the
+		 * vc_font.height and yres/xres.
+		 * In the second call, the struct fb_var_screeninfo isn't
+		 * being modified by the underlying driver because of the
+		 * if above, and this causes the fbcon_display->vrows to become
+		 * negative and it eventually leads to out-of-bound
+		 * access by the imageblit function.
+		 * To give the correct values to the struct and to not have
+		 * to deal with possible errors from the code below, we call
+		 * the resize_screen here as well.
+		 */
+		return resize_screen(vc, new_cols, new_rows, user);
+	}
 
 	if (new_screen_size > KMALLOC_MAX_SIZE || !new_screen_size)
 		return -EINVAL;
-- 
GitLab


From a7d4fc84404d45d72f4490417e8cc3efa4af93f1 Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Thu, 5 Aug 2021 15:29:17 +0800
Subject: [PATCH 0054/4878] cpufreq: schedutil: Use kobject release() method to
 free sugov_tunables

[ Upstream commit e5c6b312ce3cc97e90ea159446e6bfa06645364d ]

The struct sugov_tunables is protected by the kobject, so we can't free
it directly. Otherwise we would get a call trace like this:
  ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x30
  WARNING: CPU: 3 PID: 720 at lib/debugobjects.c:505 debug_print_object+0xb8/0x100
  Modules linked in:
  CPU: 3 PID: 720 Comm: a.sh Tainted: G        W         5.14.0-rc1-next-20210715-yocto-standard+ #507
  Hardware name: Marvell OcteonTX CN96XX board (DT)
  pstate: 40400009 (nZcv daif +PAN -UAO -TCO BTYPE=--)
  pc : debug_print_object+0xb8/0x100
  lr : debug_print_object+0xb8/0x100
  sp : ffff80001ecaf910
  x29: ffff80001ecaf910 x28: ffff00011b10b8d0 x27: ffff800011043d80
  x26: ffff00011a8f0000 x25: ffff800013cb3ff0 x24: 0000000000000000
  x23: ffff80001142aa68 x22: ffff800011043d80 x21: ffff00010de46f20
  x20: ffff800013c0c520 x19: ffff800011d8f5b0 x18: 0000000000000010
  x17: 6e6968207473696c x16: 5f72656d6974203a x15: 6570797420746365
  x14: 6a626f2029302065 x13: 303378302f307830 x12: 2b6e665f72656d69
  x11: ffff8000124b1560 x10: ffff800012331520 x9 : ffff8000100ca6b0
  x8 : 000000000017ffe8 x7 : c0000000fffeffff x6 : 0000000000000001
  x5 : ffff800011d8c000 x4 : ffff800011d8c740 x3 : 0000000000000000
  x2 : ffff0001108301c0 x1 : ab3c90eedf9c0f00 x0 : 0000000000000000
  Call trace:
   debug_print_object+0xb8/0x100
   __debug_check_no_obj_freed+0x1c0/0x230
   debug_check_no_obj_freed+0x20/0x88
   slab_free_freelist_hook+0x154/0x1c8
   kfree+0x114/0x5d0
   sugov_exit+0xbc/0xc0
   cpufreq_exit_governor+0x44/0x90
   cpufreq_set_policy+0x268/0x4a8
   store_scaling_governor+0xe0/0x128
   store+0xc0/0xf0
   sysfs_kf_write+0x54/0x80
   kernfs_fop_write_iter+0x128/0x1c0
   new_sync_write+0xf0/0x190
   vfs_write+0x2d4/0x478
   ksys_write+0x74/0x100
   __arm64_sys_write+0x24/0x30
   invoke_syscall.constprop.0+0x54/0xe0
   do_el0_svc+0x64/0x158
   el0_svc+0x2c/0xb0
   el0t_64_sync_handler+0xb0/0xb8
   el0t_64_sync+0x198/0x19c
  irq event stamp: 5518
  hardirqs last  enabled at (5517): [<ffff8000100cbd7c>] console_unlock+0x554/0x6c8
  hardirqs last disabled at (5518): [<ffff800010fc0638>] el1_dbg+0x28/0xa0
  softirqs last  enabled at (5504): [<ffff8000100106e0>] __do_softirq+0x4d0/0x6c0
  softirqs last disabled at (5483): [<ffff800010049548>] irq_exit+0x1b0/0x1b8

So split the original sugov_tunables_free() into two functions,
sugov_clear_global_tunables() is just used to clear the global_tunables
and the new sugov_tunables_free() is used as kobj_type::release to
release the sugov_tunables safely.

Fixes: 9bdcb44e391d ("cpufreq: schedutil: New governor based on scheduler utilization data")
Cc: 4.7+ <stable@vger.kernel.org> # 4.7+
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/cpufreq_schedutil.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 97d318b0cd0cb..5e39da0ae0868 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -610,9 +610,17 @@ static struct attribute *sugov_attrs[] = {
 };
 ATTRIBUTE_GROUPS(sugov);
 
+static void sugov_tunables_free(struct kobject *kobj)
+{
+	struct gov_attr_set *attr_set = container_of(kobj, struct gov_attr_set, kobj);
+
+	kfree(to_sugov_tunables(attr_set));
+}
+
 static struct kobj_type sugov_tunables_ktype = {
 	.default_groups = sugov_groups,
 	.sysfs_ops = &governor_sysfs_ops,
+	.release = &sugov_tunables_free,
 };
 
 /********************** cpufreq governor interface *********************/
@@ -712,12 +720,10 @@ static struct sugov_tunables *sugov_tunables_alloc(struct sugov_policy *sg_polic
 	return tunables;
 }
 
-static void sugov_tunables_free(struct sugov_tunables *tunables)
+static void sugov_clear_global_tunables(void)
 {
 	if (!have_governor_per_policy())
 		global_tunables = NULL;
-
-	kfree(tunables);
 }
 
 static int sugov_init(struct cpufreq_policy *policy)
@@ -780,7 +786,7 @@ out:
 fail:
 	kobject_put(&tunables->attr_set.kobj);
 	policy->governor_data = NULL;
-	sugov_tunables_free(tunables);
+	sugov_clear_global_tunables();
 
 stop_kthread:
 	sugov_kthread_stop(sg_policy);
@@ -807,7 +813,7 @@ static void sugov_exit(struct cpufreq_policy *policy)
 	count = gov_attr_set_put(&tunables->attr_set, &sg_policy->tunables_hook);
 	policy->governor_data = NULL;
 	if (!count)
-		sugov_tunables_free(tunables);
+		sugov_clear_global_tunables();
 
 	mutex_unlock(&global_tunables_lock);
 
-- 
GitLab


From 2193cf76f43acdbd87b8609c7206f0b414b241d9 Mon Sep 17 00:00:00 2001
From: Saurav Kashyap <skashyap@marvell.com>
Date: Mon, 9 Aug 2021 21:37:18 -0700
Subject: [PATCH 0055/4878] scsi: qla2xxx: Changes to support kdump kernel for
 NVMe BFS

[ Upstream commit 4a0a542fe5e4273baf9228459ef3f75c29490cba ]

The MSI-X and MSI calls fails in kdump kernel. Because of this
qla2xxx_create_qpair() fails leading to .create_queue callback failure.
The fix is to return existing qpair instead of allocating new one and
allocate a single hw queue.

[   19.975838] qla2xxx [0000:d8:00.1]-00c7:11: MSI-X: Failed to enable support,
giving   up -- 16/-28.
[   19.984885] qla2xxx [0000:d8:00.1]-0037:11: Falling back-to MSI mode --
ret=-28.
[   19.992278] qla2xxx [0000:d8:00.1]-0039:11: Falling back-to INTa mode --
ret=-28.
..
..
..
[   21.141518] qla2xxx [0000:d8:00.0]-2104:2: qla_nvme_alloc_queue: handle
00000000e7ee499d, idx =1, qsize 32
[   21.151166] qla2xxx [0000:d8:00.0]-0181:2: FW/Driver is not multi-queue capable.
[   21.158558] qla2xxx [0000:d8:00.0]-2122:2: Failed to allocate qpair
[   21.164824] nvme nvme0: NVME-FC{0}: reset: Reconnect attempt failed (-22)
[   21.171612] nvme nvme0: NVME-FC{0}: Reconnect attempt in 2 seconds

Link: https://lore.kernel.org/r/20210810043720.1137-13-njavali@marvell.com
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_def.h  |  1 -
 drivers/scsi/qla2xxx/qla_isr.c  |  2 ++
 drivers/scsi/qla2xxx/qla_nvme.c | 40 +++++++++++++++------------------
 3 files changed, 20 insertions(+), 23 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 4f0486fe30dd7..e1fd91a581202 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -3913,7 +3913,6 @@ struct qla_hw_data {
 		uint32_t	scm_supported_f:1;
 				/* Enabled in Driver */
 		uint32_t	scm_enabled:1;
-		uint32_t	max_req_queue_warned:1;
 		uint32_t	plogi_template_valid:1;
 	} flags;
 
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index a24b82de4aab7..5e040b6debc84 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -4158,6 +4158,8 @@ skip_msi:
 		ql_dbg(ql_dbg_init, vha, 0x0125,
 		    "INTa mode: Enabled.\n");
 		ha->flags.mr_intr_valid = 1;
+		/* Set max_qpair to 0, as MSI-X and MSI in not enabled */
+		ha->max_qpairs = 0;
 	}
 
 clear_risc_ints:
diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index f6c76a063294b..5acee3c798d42 100644
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -109,19 +109,24 @@ static int qla_nvme_alloc_queue(struct nvme_fc_local_port *lport,
 		return -EINVAL;
 	}
 
-	if (ha->queue_pair_map[qidx]) {
-		*handle = ha->queue_pair_map[qidx];
-		ql_log(ql_log_info, vha, 0x2121,
-		    "Returning existing qpair of %p for idx=%x\n",
-		    *handle, qidx);
-		return 0;
-	}
+	/* Use base qpair if max_qpairs is 0 */
+	if (!ha->max_qpairs) {
+		qpair = ha->base_qpair;
+	} else {
+		if (ha->queue_pair_map[qidx]) {
+			*handle = ha->queue_pair_map[qidx];
+			ql_log(ql_log_info, vha, 0x2121,
+			       "Returning existing qpair of %p for idx=%x\n",
+			       *handle, qidx);
+			return 0;
+		}
 
-	qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
-	if (qpair == NULL) {
-		ql_log(ql_log_warn, vha, 0x2122,
-		    "Failed to allocate qpair\n");
-		return -EINVAL;
+		qpair = qla2xxx_create_qpair(vha, 5, vha->vp_idx, true);
+		if (!qpair) {
+			ql_log(ql_log_warn, vha, 0x2122,
+			       "Failed to allocate qpair\n");
+			return -EINVAL;
+		}
 	}
 	*handle = qpair;
 
@@ -715,18 +720,9 @@ int qla_nvme_register_hba(struct scsi_qla_host *vha)
 
 	WARN_ON(vha->nvme_local_port);
 
-	if (ha->max_req_queues < 3) {
-		if (!ha->flags.max_req_queue_warned)
-			ql_log(ql_log_info, vha, 0x2120,
-			       "%s: Disabling FC-NVME due to lack of free queue pairs (%d).\n",
-			       __func__, ha->max_req_queues);
-		ha->flags.max_req_queue_warned = 1;
-		return ret;
-	}
-
 	qla_nvme_fc_transport.max_hw_queues =
 	    min((uint8_t)(qla_nvme_fc_transport.max_hw_queues),
-		(uint8_t)(ha->max_req_queues - 2));
+		(uint8_t)(ha->max_qpairs ? ha->max_qpairs : 1));
 
 	pinfo.node_name = wwn_to_u64(vha->node_name);
 	pinfo.port_name = wwn_to_u64(vha->port_name);
-- 
GitLab


From 3945c481360caee7d496c95b5c73afe923a1c7cd Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 14 Sep 2021 16:56:23 +0000
Subject: [PATCH 0056/4878] cpufreq: schedutil: Destroy mutex before
 kobject_put() frees the memory

[ Upstream commit cdef1196608892b9a46caa5f2b64095a7f0be60c ]

Since commit e5c6b312ce3c ("cpufreq: schedutil: Use kobject release()
method to free sugov_tunables") kobject_put() has kfree()d the
attr_set before gov_attr_set_put() returns.

kobject_put() isn't the last user of attr_set in gov_attr_set_put(),
the subsequent mutex_destroy() triggers a use-after-free:
| BUG: KASAN: use-after-free in mutex_is_locked+0x20/0x60
| Read of size 8 at addr ffff000800ca4250 by task cpuhp/2/20
|
| CPU: 2 PID: 20 Comm: cpuhp/2 Not tainted 5.15.0-rc1 #12369
| Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development
| Platform, BIOS EDK II Jul 30 2018
| Call trace:
|  dump_backtrace+0x0/0x380
|  show_stack+0x1c/0x30
|  dump_stack_lvl+0x8c/0xb8
|  print_address_description.constprop.0+0x74/0x2b8
|  kasan_report+0x1f4/0x210
|  kasan_check_range+0xfc/0x1a4
|  __kasan_check_read+0x38/0x60
|  mutex_is_locked+0x20/0x60
|  mutex_destroy+0x80/0x100
|  gov_attr_set_put+0xfc/0x150
|  sugov_exit+0x78/0x190
|  cpufreq_offline.isra.0+0x2c0/0x660
|  cpuhp_cpufreq_offline+0x14/0x24
|  cpuhp_invoke_callback+0x430/0x6d0
|  cpuhp_thread_fun+0x1b0/0x624
|  smpboot_thread_fn+0x5e0/0xa6c
|  kthread+0x3a0/0x450
|  ret_from_fork+0x10/0x20

Swap the order of the calls.

Fixes: e5c6b312ce3c ("cpufreq: schedutil: Use kobject release() method to free sugov_tunables")
Cc: 4.7+ <stable@vger.kernel.org> # 4.7+
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cpufreq/cpufreq_governor_attr_set.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq_governor_attr_set.c b/drivers/cpufreq/cpufreq_governor_attr_set.c
index 66b05a326910e..a6f365b9cc1ad 100644
--- a/drivers/cpufreq/cpufreq_governor_attr_set.c
+++ b/drivers/cpufreq/cpufreq_governor_attr_set.c
@@ -74,8 +74,8 @@ unsigned int gov_attr_set_put(struct gov_attr_set *attr_set, struct list_head *l
 	if (count)
 		return count;
 
-	kobject_put(&attr_set->kobj);
 	mutex_destroy(&attr_set->update_lock);
+	kobject_put(&attr_set->kobj);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(gov_attr_set_put);
-- 
GitLab


From 23115ca7d22718662418a79962551ad42033cbd3 Mon Sep 17 00:00:00 2001
From: Pawel Laszczak <pawell@cadence.com>
Date: Tue, 7 Sep 2021 08:26:19 +0200
Subject: [PATCH 0057/4878] usb: cdns3: fix race condition before setting
 doorbell

[ Upstream commit b69ec50b3e55c4b2a85c8bc46763eaf330605847 ]

For DEV_VER_V3 version there exist race condition between clearing
ep_sts.EP_STS_TRBERR and setting ep_cmd.EP_CMD_DRDY bit.
Setting EP_CMD_DRDY will be ignored by controller when
EP_STS_TRBERR is set. So, between these two instructions we have
a small time gap in which the EP_STSS_TRBERR can be set. In such case
the transfer will not start after setting doorbell.

Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver")
cc: <stable@vger.kernel.org> # 5.12.x
Tested-by: Aswath Govindraju <a-govindraju@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Link: https://lore.kernel.org/r/20210907062619.34622-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/cdns3/gadget.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c
index 9d38f864cb68c..e111622944139 100644
--- a/drivers/usb/cdns3/gadget.c
+++ b/drivers/usb/cdns3/gadget.c
@@ -1101,6 +1101,19 @@ static int cdns3_ep_run_stream_transfer(struct cdns3_endpoint *priv_ep,
 	return 0;
 }
 
+static void cdns3_rearm_drdy_if_needed(struct cdns3_endpoint *priv_ep)
+{
+	struct cdns3_device *priv_dev = priv_ep->cdns3_dev;
+
+	if (priv_dev->dev_ver < DEV_VER_V3)
+		return;
+
+	if (readl(&priv_dev->regs->ep_sts) & EP_STS_TRBERR) {
+		writel(EP_STS_TRBERR, &priv_dev->regs->ep_sts);
+		writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd);
+	}
+}
+
 /**
  * cdns3_ep_run_transfer - start transfer on no-default endpoint hardware
  * @priv_ep: endpoint object
@@ -1352,6 +1365,7 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep,
 		/*clearing TRBERR and EP_STS_DESCMIS before seting DRDY*/
 		writel(EP_STS_TRBERR | EP_STS_DESCMIS, &priv_dev->regs->ep_sts);
 		writel(EP_CMD_DRDY, &priv_dev->regs->ep_cmd);
+		cdns3_rearm_drdy_if_needed(priv_ep);
 		trace_cdns3_doorbell_epx(priv_ep->name,
 					 readl(&priv_dev->regs->ep_traddr));
 	}
-- 
GitLab


From e9edc7bc611a2c3b3079677abe97e7fa9db596ce Mon Sep 17 00:00:00 2001
From: Cameron Berkenpas <cam@neo-zeon.de>
Date: Mon, 13 Sep 2021 14:26:29 -0700
Subject: [PATCH 0058/4878] ALSA: hda/realtek: Quirks to enable speaker output
 for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops.

commit ad7cc2d41b7a8d0c5c5ecff37c3de7a4e137b3a6 upstream.

This patch initializes and enables speaker output on the Lenovo Legion 7i
15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 series of laptops using the
HDA verb sequence specific to each model.

Speaker automute is suppressed for the Lenovo Legion 7i 15IMHG05 to avoid
breaking speaker output on resume and when devices are unplugged from its
headphone jack.

Thanks to: Andreas Holzer, Vincent Morel, sycxyc, Max Christian Pohle and
all others that helped.

[ minor coding style fixes by tiwai ]

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208555
Signed-off-by: Cameron Berkenpas <cam@neo-zeon.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210913212627.339362-1-cam@neo-zeon.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 129 ++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f47f639980dbb..9f37adb2b4d09 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6375,6 +6375,20 @@ static void alc_fixup_thinkpad_acpi(struct hda_codec *codec,
 	hda_fixup_thinkpad_acpi(codec, fix, action);
 }
 
+/* Fixup for Lenovo Legion 15IMHg05 speaker output on headset removal. */
+static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec,
+						  const struct hda_fixup *fix,
+						  int action)
+{
+	struct alc_spec *spec = codec->spec;
+
+	switch (action) {
+	case HDA_FIXUP_ACT_PRE_PROBE:
+		spec->gen.suppress_auto_mute = 1;
+		break;
+	}
+}
+
 /* for alc295_fixup_hp_top_speakers */
 #include "hp_x360_helper.c"
 
@@ -6591,6 +6605,10 @@ enum {
 	ALC623_FIXUP_LENOVO_THINKSTATION_P340,
 	ALC255_FIXUP_ACER_HEADPHONE_AND_MIC,
 	ALC236_FIXUP_HP_LIMIT_INT_MIC_BOOST,
+	ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS,
+	ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE,
+	ALC287_FIXUP_YOGA7_14ITL_SPEAKERS,
+	ALC287_FIXUP_13S_GEN2_SPEAKERS
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8175,6 +8193,113 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF,
 	},
+	[ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS] = {
+		.type = HDA_FIXUP_VERBS,
+		//.v.verbs = legion_15imhg05_coefs,
+		.v.verbs = (const struct hda_verb[]) {
+			 // set left speaker Legion 7i.
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x41 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xc },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x1a },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+
+			 // set right speaker Legion 7i.
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x42 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xc },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x2a },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+			 {}
+		},
+		.chained = true,
+		.chain_id = ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE,
+	},
+	[ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc287_fixup_legion_15imhg05_speakers,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE,
+	},
+	[ALC287_FIXUP_YOGA7_14ITL_SPEAKERS] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			 // set left speaker Yoga 7i.
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x41 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xc },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x1a },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+
+			 // set right speaker Yoga 7i.
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x46 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xc },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x2a },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+
+			 { 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			 { 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+			 {}
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE,
+	},
+	[ALC287_FIXUP_13S_GEN2_SPEAKERS] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x41 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x42 },
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+			{}
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -8567,6 +8692,10 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME),
 	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
+	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x3853, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x3819, "Lenovo 13s Gen2 ITL", ALC287_FIXUP_13S_GEN2_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo B50-70", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
-- 
GitLab


From d1d0016e4a7d317c7680f63e61f717c066157b57 Mon Sep 17 00:00:00 2001
From: Jia He <justin.he@arm.com>
Date: Wed, 22 Sep 2021 23:29:19 +0800
Subject: [PATCH 0059/4878] ACPI: NFIT: Use fallback node id when numa info in
 NFIT table is incorrect

commit f060db99374e80e853ac4916b49f0a903f65e9dc upstream.

When ACPI NFIT table is failing to populate correct numa information
on arm64, dax_kmem will get NUMA_NO_NODE from the NFIT driver.

Without this patch, pmem can't be probed as RAM devices on arm64 guest:
  $ndctl create-namespace -fe namespace0.0 --mode=devdax --map=dev -s 1g -a 128M
  kmem dax0.0: rejecting DAX region [mem 0x240400000-0x2bfffffff] with invalid node: -1
  kmem: probe of dax0.0 failed with error -22

Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jia He <justin.he@arm.com>
Cc: <stable@vger.kernel.org>
Fixes: c221c0b0308f ("device-dax: "Hotplug" persistent memory for use like normal RAM")
Link: https://lore.kernel.org/r/20210922152919.6940-1-justin.he@arm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/nfit/core.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index d061bff5cc96c..99e23a5df0267 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -3018,6 +3018,18 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
 		ndr_desc->target_node = NUMA_NO_NODE;
 	}
 
+	/* Fallback to address based numa information if node lookup failed */
+	if (ndr_desc->numa_node == NUMA_NO_NODE) {
+		ndr_desc->numa_node = memory_add_physaddr_to_nid(spa->address);
+		dev_info(acpi_desc->dev, "changing numa node from %d to %d for nfit region [%pa-%pa]",
+			NUMA_NO_NODE, ndr_desc->numa_node, &res.start, &res.end);
+	}
+	if (ndr_desc->target_node == NUMA_NO_NODE) {
+		ndr_desc->target_node = phys_to_target_node(spa->address);
+		dev_info(acpi_desc->dev, "changing target node from %d to %d for nfit region [%pa-%pa]",
+			NUMA_NO_NODE, ndr_desc->numa_node, &res.start, &res.end);
+	}
+
 	/*
 	 * Persistence domain bits are hierarchical, if
 	 * ACPI_NFIT_CAPABILITY_CACHE_FLUSH is set then
-- 
GitLab


From 23a6dfa10f0379509b334ee6db428488b7fbe0a0 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 16 Sep 2021 13:34:24 -0700
Subject: [PATCH 0060/4878] fs-verity: fix signed integer overflow with i_size
 near S64_MAX

commit 80f6e3080bfcf865062a926817b3ca6c4a137a57 upstream.

If the file size is almost S64_MAX, the calculated number of Merkle tree
levels exceeds FS_VERITY_MAX_LEVELS, causing FS_IOC_ENABLE_VERITY to
fail.  This is unintentional, since as the comment above the definition
of FS_VERITY_MAX_LEVELS states, it is enough for over U64_MAX bytes of
data using SHA-256 and 4K blocks.  (Specifically, 4096*128**8 >= 2**64.)

The bug is actually that when the number of blocks in the first level is
calculated from i_size, there is a signed integer overflow due to i_size
being signed.  Fix this by treating i_size as unsigned.

This was found by the new test "generic: test fs-verity EFBIG scenarios"
(https://lkml.kernel.org/r/b1d116cd4d0ea74b9cd86f349c672021e005a75c.1631558495.git.boris@bur.io).

This didn't affect ext4 or f2fs since those have a smaller maximum file
size, but it did affect btrfs which allows files up to S64_MAX bytes.

Reported-by: Boris Burkov <boris@bur.io>
Fixes: 3fda4c617e84 ("fs-verity: implement FS_IOC_ENABLE_VERITY ioctl")
Fixes: fd2d1acfcadf ("fs-verity: add the hook for file ->open()")
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Boris Burkov <boris@bur.io>
Link: https://lore.kernel.org/r/20210916203424.113376-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/verity/enable.c | 2 +-
 fs/verity/open.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/verity/enable.c b/fs/verity/enable.c
index 5ab3bbec81087..734862e608fd3 100644
--- a/fs/verity/enable.c
+++ b/fs/verity/enable.c
@@ -177,7 +177,7 @@ static int build_merkle_tree(struct file *filp,
 	 * (level 0) and ascending to the root node (level 'num_levels - 1').
 	 * Then at the end (level 'num_levels'), calculate the root hash.
 	 */
-	blocks = (inode->i_size + params->block_size - 1) >>
+	blocks = ((u64)inode->i_size + params->block_size - 1) >>
 		 params->log_blocksize;
 	for (level = 0; level <= params->num_levels; level++) {
 		err = build_merkle_tree_level(filp, level, blocks, params,
diff --git a/fs/verity/open.c b/fs/verity/open.c
index bfe0280c14e49..67d71f7b1b483 100644
--- a/fs/verity/open.c
+++ b/fs/verity/open.c
@@ -89,7 +89,7 @@ int fsverity_init_merkle_tree_params(struct merkle_tree_params *params,
 	 */
 
 	/* Compute number of levels and the number of blocks in each level */
-	blocks = (inode->i_size + params->block_size - 1) >> log_blocksize;
+	blocks = ((u64)inode->i_size + params->block_size - 1) >> log_blocksize;
 	pr_debug("Data is %lld bytes (%llu blocks)\n", inode->i_size, blocks);
 	while (blocks > 1) {
 		if (params->num_levels >= FS_VERITY_MAX_LEVELS) {
-- 
GitLab


From 196dabd96bbfd8b816aeeb9b7a59bd489ed0ac89 Mon Sep 17 00:00:00 2001
From: Paul Fertser <fercerpav@gmail.com>
Date: Fri, 24 Sep 2021 12:30:09 +0300
Subject: [PATCH 0061/4878] hwmon: (tmp421) handle I2C errors

commit 2938b2978a70d4cc10777ee71c9e512ffe4e0f4b upstream.

Function i2c_smbus_read_byte_data() can return a negative error number
instead of the data read if I2C transaction failed for whatever reason.

Lack of error checking can lead to serious issues on production
hardware, e.g. errors treated as temperatures produce spurious critical
temperature-crossed-threshold errors in BMC logs for OCP server
hardware. The patch was tested with Mellanox OCP Mezzanine card
emulating TMP421 protocol for temperature sensing which sometimes leads
to I2C protocol error during early boot up stage.

Fixes: 9410700b881f ("hwmon: Add driver for Texas Instruments TMP421/422/423 sensor chips")
Cc: stable@vger.kernel.org
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Link: https://lore.kernel.org/r/20210924093011.26083-1-fercerpav@gmail.com
[groeck: dropped unnecessary line breaks]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/tmp421.c | 38 ++++++++++++++++++++++++++++----------
 1 file changed, 28 insertions(+), 10 deletions(-)

diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index ede66ea6a730d..8fd8c3a94dfe0 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -119,38 +119,56 @@ static int temp_from_u16(u16 reg)
 	return (temp * 1000 + 128) / 256;
 }
 
-static struct tmp421_data *tmp421_update_device(struct device *dev)
+static int tmp421_update_device(struct tmp421_data *data)
 {
-	struct tmp421_data *data = dev_get_drvdata(dev);
 	struct i2c_client *client = data->client;
+	int ret = 0;
 	int i;
 
 	mutex_lock(&data->update_lock);
 
 	if (time_after(jiffies, data->last_updated + (HZ / 2)) ||
 	    !data->valid) {
-		data->config = i2c_smbus_read_byte_data(client,
-			TMP421_CONFIG_REG_1);
+		ret = i2c_smbus_read_byte_data(client, TMP421_CONFIG_REG_1);
+		if (ret < 0)
+			goto exit;
+		data->config = ret;
 
 		for (i = 0; i < data->channels; i++) {
-			data->temp[i] = i2c_smbus_read_byte_data(client,
-				TMP421_TEMP_MSB[i]) << 8;
-			data->temp[i] |= i2c_smbus_read_byte_data(client,
-				TMP421_TEMP_LSB[i]);
+			ret = i2c_smbus_read_byte_data(client, TMP421_TEMP_MSB[i]);
+			if (ret < 0)
+				goto exit;
+			data->temp[i] = ret << 8;
+
+			ret = i2c_smbus_read_byte_data(client, TMP421_TEMP_LSB[i]);
+			if (ret < 0)
+				goto exit;
+			data->temp[i] |= ret;
 		}
 		data->last_updated = jiffies;
 		data->valid = 1;
 	}
 
+exit:
 	mutex_unlock(&data->update_lock);
 
-	return data;
+	if (ret < 0) {
+		data->valid = 0;
+		return ret;
+	}
+
+	return 0;
 }
 
 static int tmp421_read(struct device *dev, enum hwmon_sensor_types type,
 		       u32 attr, int channel, long *val)
 {
-	struct tmp421_data *tmp421 = tmp421_update_device(dev);
+	struct tmp421_data *tmp421 = dev_get_drvdata(dev);
+	int ret = 0;
+
+	ret = tmp421_update_device(tmp421);
+	if (ret)
+		return ret;
 
 	switch (attr) {
 	case hwmon_temp_input:
-- 
GitLab


From 7c4fd5de39f273626a2b0f3a446d2cc85cd47616 Mon Sep 17 00:00:00 2001
From: Nadezda Lutovinova <lutovinova@ispras.ru>
Date: Tue, 21 Sep 2021 18:51:53 +0300
Subject: [PATCH 0062/4878] hwmon: (w83793) Fix NULL pointer dereference by
 removing unnecessary structure field

commit dd4d747ef05addab887dc8ff0d6ab9860bbcd783 upstream.

If driver read tmp value sufficient for
(tmp & 0x08) && (!(tmp & 0x80)) && ((tmp & 0x7) == ((tmp >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().

The patch fixes possible NULL pointer dereference by removing lm75[].

Found by Linux Driver Verification project (linuxtesting.org).

Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-3-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multi-line alignments]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/w83793.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index e7d0484eabe4c..1d2854de1cfc9 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -202,7 +202,6 @@ static inline s8 TEMP_TO_REG(long val, s8 min, s8 max)
 }
 
 struct w83793_data {
-	struct i2c_client *lm75[2];
 	struct device *hwmon_dev;
 	struct mutex update_lock;
 	char valid;			/* !=0 if following fields are valid */
@@ -1566,7 +1565,6 @@ w83793_detect_subclients(struct i2c_client *client)
 	int address = client->addr;
 	u8 tmp;
 	struct i2c_adapter *adapter = client->adapter;
-	struct w83793_data *data = i2c_get_clientdata(client);
 
 	id = i2c_adapter_id(adapter);
 	if (force_subclients[0] == id && force_subclients[1] == address) {
@@ -1586,21 +1584,19 @@ w83793_detect_subclients(struct i2c_client *client)
 	}
 
 	tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
-	if (!(tmp & 0x08))
-		data->lm75[0] = devm_i2c_new_dummy_device(&client->dev, adapter,
-							  0x48 + (tmp & 0x7));
-	if (!(tmp & 0x80)) {
-		if (!IS_ERR(data->lm75[0])
-		    && ((tmp & 0x7) == ((tmp >> 4) & 0x7))) {
-			dev_err(&client->dev,
-				"duplicate addresses 0x%x, "
-				"use force_subclients\n", data->lm75[0]->addr);
-			return -ENODEV;
-		}
-		data->lm75[1] = devm_i2c_new_dummy_device(&client->dev, adapter,
-							  0x48 + ((tmp >> 4) & 0x7));
+
+	if (!(tmp & 0x88) && (tmp & 0x7) == ((tmp >> 4) & 0x7)) {
+		dev_err(&client->dev,
+			"duplicate addresses 0x%x, use force_subclient\n", 0x48 + (tmp & 0x7));
+		return -ENODEV;
 	}
 
+	if (!(tmp & 0x08))
+		devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + (tmp & 0x7));
+
+	if (!(tmp & 0x80))
+		devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + ((tmp >> 4) & 0x7));
+
 	return 0;
 }
 
-- 
GitLab


From 1499bb2c3a87a2efea0065adab2bd66badee61c3 Mon Sep 17 00:00:00 2001
From: Nadezda Lutovinova <lutovinova@ispras.ru>
Date: Tue, 21 Sep 2021 18:51:52 +0300
Subject: [PATCH 0063/4878] hwmon: (w83792d) Fix NULL pointer dereference by
 removing unnecessary structure field

commit 0f36b88173f028e372668ae040ab1a496834d278 upstream.

If driver read val value sufficient for
(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().

The patch fixes possible NULL pointer dereference by removing lm75[].

Found by Linux Driver Verification project (linuxtesting.org).

Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-2-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/w83792d.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index abd5c3a722b91..1f175f3813506 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -264,9 +264,6 @@ struct w83792d_data {
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 
-	/* array of 2 pointers to subclients */
-	struct i2c_client *lm75[2];
-
 	u8 in[9];		/* Register value */
 	u8 in_max[9];		/* Register value */
 	u8 in_min[9];		/* Register value */
@@ -927,7 +924,6 @@ w83792d_detect_subclients(struct i2c_client *new_client)
 	int address = new_client->addr;
 	u8 val;
 	struct i2c_adapter *adapter = new_client->adapter;
-	struct w83792d_data *data = i2c_get_clientdata(new_client);
 
 	id = i2c_adapter_id(adapter);
 	if (force_subclients[0] == id && force_subclients[1] == address) {
@@ -946,21 +942,19 @@ w83792d_detect_subclients(struct i2c_client *new_client)
 	}
 
 	val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
-	if (!(val & 0x08))
-		data->lm75[0] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
-							  0x48 + (val & 0x7));
-	if (!(val & 0x80)) {
-		if (!IS_ERR(data->lm75[0]) &&
-			((val & 0x7) == ((val >> 4) & 0x7))) {
-			dev_err(&new_client->dev,
-				"duplicate addresses 0x%x, use force_subclient\n",
-				data->lm75[0]->addr);
-			return -ENODEV;
-		}
-		data->lm75[1] = devm_i2c_new_dummy_device(&new_client->dev, adapter,
-							  0x48 + ((val >> 4) & 0x7));
+
+	if (!(val & 0x88) && (val & 0x7) == ((val >> 4) & 0x7)) {
+		dev_err(&new_client->dev,
+			"duplicate addresses 0x%x, use force_subclient\n", 0x48 + (val & 0x7));
+		return -ENODEV;
 	}
 
+	if (!(val & 0x08))
+		devm_i2c_new_dummy_device(&new_client->dev, adapter, 0x48 + (val & 0x7));
+
+	if (!(val & 0x80))
+		devm_i2c_new_dummy_device(&new_client->dev, adapter, 0x48 + ((val >> 4) & 0x7));
+
 	return 0;
 }
 
-- 
GitLab


From 516d9055039017a20a698103be2b556b4c976bb8 Mon Sep 17 00:00:00 2001
From: Nadezda Lutovinova <lutovinova@ispras.ru>
Date: Tue, 21 Sep 2021 18:51:51 +0300
Subject: [PATCH 0064/4878] hwmon: (w83791d) Fix NULL pointer dereference by
 removing unnecessary structure field

commit 943c15ac1b84d378da26bba41c83c67e16499ac4 upstream.

If driver read val value sufficient for
(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().

The patch fixes possible NULL pointer dereference by removing lm75[].

Found by Linux Driver Verification project (linuxtesting.org).

Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-1-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multi-line alignment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/w83791d.c | 29 +++++++++++------------------
 1 file changed, 11 insertions(+), 18 deletions(-)

diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
index 37b25a1474c46..3c1be2c11fdf0 100644
--- a/drivers/hwmon/w83791d.c
+++ b/drivers/hwmon/w83791d.c
@@ -273,9 +273,6 @@ struct w83791d_data {
 	char valid;			/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 
-	/* array of 2 pointers to subclients */
-	struct i2c_client *lm75[2];
-
 	/* volts */
 	u8 in[NUMBER_OF_VIN];		/* Register value */
 	u8 in_max[NUMBER_OF_VIN];	/* Register value */
@@ -1257,7 +1254,6 @@ static const struct attribute_group w83791d_group_fanpwm45 = {
 static int w83791d_detect_subclients(struct i2c_client *client)
 {
 	struct i2c_adapter *adapter = client->adapter;
-	struct w83791d_data *data = i2c_get_clientdata(client);
 	int address = client->addr;
 	int i, id;
 	u8 val;
@@ -1280,22 +1276,19 @@ static int w83791d_detect_subclients(struct i2c_client *client)
 	}
 
 	val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
-	if (!(val & 0x08))
-		data->lm75[0] = devm_i2c_new_dummy_device(&client->dev, adapter,
-							  0x48 + (val & 0x7));
-	if (!(val & 0x80)) {
-		if (!IS_ERR(data->lm75[0]) &&
-				((val & 0x7) == ((val >> 4) & 0x7))) {
-			dev_err(&client->dev,
-				"duplicate addresses 0x%x, "
-				"use force_subclient\n",
-				data->lm75[0]->addr);
-			return -ENODEV;
-		}
-		data->lm75[1] = devm_i2c_new_dummy_device(&client->dev, adapter,
-							  0x48 + ((val >> 4) & 0x7));
+
+	if (!(val & 0x88) && (val & 0x7) == ((val >> 4) & 0x7)) {
+		dev_err(&client->dev,
+			"duplicate addresses 0x%x, use force_subclient\n", 0x48 + (val & 0x7));
+		return -ENODEV;
 	}
 
+	if (!(val & 0x08))
+		devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + (val & 0x7));
+
+	if (!(val & 0x80))
+		devm_i2c_new_dummy_device(&client->dev, adapter, 0x48 + ((val >> 4) & 0x7));
+
 	return 0;
 }
 
-- 
GitLab


From bd4e446a6947528f6ea7e0e7f19031a4389a4017 Mon Sep 17 00:00:00 2001
From: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Date: Thu, 23 Sep 2021 20:22:16 +0300
Subject: [PATCH 0065/4878] gpio: pca953x: do not ignore i2c errors

commit 540cffbab8b8e6c52a4121666ca18d6e94586ed2 upstream.

Per gpio_chip interface, error shall be proparated to the caller.

Attempt to silent diagnostics by returning zero (as written in the
comment) is plain wrong, because the zero return can be interpreted by
the caller as the gpio value.

Cc: stable@vger.kernel.org
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-pca953x.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 7cc7d137133aa..3a3aeef1017f5 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -467,15 +467,8 @@ static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off)
 	mutex_lock(&chip->i2c_lock);
 	ret = regmap_read(chip->regmap, inreg, &reg_val);
 	mutex_unlock(&chip->i2c_lock);
-	if (ret < 0) {
-		/*
-		 * NOTE:
-		 * diagnostic already emitted; that's all we should
-		 * do unless gpio_*_value_cansleep() calls become different
-		 * from their nonsleeping siblings (and report faults).
-		 */
-		return 0;
-	}
+	if (ret < 0)
+		return ret;
 
 	return !!(reg_val & bit);
 }
-- 
GitLab


From 201ba843fef53d7098ed30d359046938e3b50193 Mon Sep 17 00:00:00 2001
From: Jonathan Hsu <jonathan.hsu@mediatek.com>
Date: Fri, 24 Sep 2021 16:58:48 +0800
Subject: [PATCH 0066/4878] scsi: ufs: Fix illegal offset in UPIU event trace

commit e8c2da7e329ce004fee748b921e4c765dc2fa338 upstream.

Fix incorrect index for UTMRD reference in ufshcd_add_tm_upiu_trace().

Link: https://lore.kernel.org/r/20210924085848.25500-1-jonathan.hsu@mediatek.com
Fixes: 4b42d557a8ad ("scsi: ufs: core: Fix wrong Task Tag used in task management request UPIUs")
Cc: stable@vger.kernel.org
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jonathan Hsu <jonathan.hsu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4dabd09400c6d..3139d9df6f320 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -318,8 +318,7 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 		const char *str)
 {
-	int off = (int)tag - hba->nutrs;
-	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[off];
+	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag];
 
 	trace_ufshcd_upiu(dev_name(hba->dev), str, &descp->req_header,
 			&descp->input_param1);
-- 
GitLab


From 57de2dcb18742dc2860861c9f496da7d42b67da0 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 27 Sep 2021 11:58:39 +0200
Subject: [PATCH 0067/4878] mac80211: fix use-after-free in CCMP/GCMP RX

commit 94513069eb549737bcfc3d988d6ed4da948a2de8 upstream.

When PN checking is done in mac80211, for fragmentation we need
to copy the PN to the RX struct so we can later use it to do a
comparison, since commit bf30ca922a0c ("mac80211: check defrag
PN against current frame").

Unfortunately, in that commit I used the 'hdr' variable without
it being necessarily valid, so use-after-free could occur if it
was necessary to reallocate (parts of) the frame.

Fix this by reloading the variable after the code that results
in the reallocations, if any.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=214401.

Cc: stable@vger.kernel.org
Fixes: bf30ca922a0c ("mac80211: check defrag PN against current frame")
Link: https://lore.kernel.org/r/20210927115838.12b9ac6bb233.I1d066acd5408a662c3b6e828122cd314fcb28cdb@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/wpa.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index bca47fad5a162..4eed23e276104 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -520,6 +520,9 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx,
 			return RX_DROP_UNUSABLE;
 	}
 
+	/* reload hdr - skb might have been reallocated */
+	hdr = (void *)rx->skb->data;
+
 	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN - mic_len;
 	if (!rx->sta || data_len < 0)
 		return RX_DROP_UNUSABLE;
@@ -749,6 +752,9 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx)
 			return RX_DROP_UNUSABLE;
 	}
 
+	/* reload hdr - skb might have been reallocated */
+	hdr = (void *)rx->skb->data;
+
 	data_len = skb->len - hdrlen - IEEE80211_GCMP_HDR_LEN - mic_len;
 	if (!rx->sta || data_len < 0)
 		return RX_DROP_UNUSABLE;
-- 
GitLab


From 782122ae7db0c4af199a0fdb4d03fcc1e2c7b734 Mon Sep 17 00:00:00 2001
From: Zelin Deng <zelin.deng@linux.alibaba.com>
Date: Wed, 29 Sep 2021 13:13:48 +0800
Subject: [PATCH 0068/4878] x86/kvmclock: Move this_cpu_pvti into kvmclock.h

commit ad9af930680bb396c87582edc172b3a7cf2a3fbf upstream.

There're other modules might use hv_clock_per_cpu variable like ptp_kvm,
so move it into kvmclock.h and export the symbol to make it visiable to
other modules.

Signed-off-by: Zelin Deng <zelin.deng@linux.alibaba.com>
Cc: <stable@vger.kernel.org>
Message-Id: <1632892429-101194-2-git-send-email-zelin.deng@linux.alibaba.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/kvmclock.h | 14 ++++++++++++++
 arch/x86/kernel/kvmclock.c      | 13 ++-----------
 2 files changed, 16 insertions(+), 11 deletions(-)

diff --git a/arch/x86/include/asm/kvmclock.h b/arch/x86/include/asm/kvmclock.h
index eceea92990974..6c57651921028 100644
--- a/arch/x86/include/asm/kvmclock.h
+++ b/arch/x86/include/asm/kvmclock.h
@@ -2,6 +2,20 @@
 #ifndef _ASM_X86_KVM_CLOCK_H
 #define _ASM_X86_KVM_CLOCK_H
 
+#include <linux/percpu.h>
+
 extern struct clocksource kvm_clock;
 
+DECLARE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
+
+static inline struct pvclock_vcpu_time_info *this_cpu_pvti(void)
+{
+	return &this_cpu_read(hv_clock_per_cpu)->pvti;
+}
+
+static inline struct pvclock_vsyscall_time_info *this_cpu_hvclock(void)
+{
+	return this_cpu_read(hv_clock_per_cpu);
+}
+
 #endif /* _ASM_X86_KVM_CLOCK_H */
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index c4ac26333bc41..bb657e2e6c687 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -50,18 +50,9 @@ early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall);
 static struct pvclock_vsyscall_time_info
 			hv_clock_boot[HVC_BOOT_ARRAY_SIZE] __bss_decrypted __aligned(PAGE_SIZE);
 static struct pvclock_wall_clock wall_clock __bss_decrypted;
-static DEFINE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
 static struct pvclock_vsyscall_time_info *hvclock_mem;
-
-static inline struct pvclock_vcpu_time_info *this_cpu_pvti(void)
-{
-	return &this_cpu_read(hv_clock_per_cpu)->pvti;
-}
-
-static inline struct pvclock_vsyscall_time_info *this_cpu_hvclock(void)
-{
-	return this_cpu_read(hv_clock_per_cpu);
-}
+DEFINE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
+EXPORT_PER_CPU_SYMBOL_GPL(hv_clock_per_cpu);
 
 /*
  * The wallclock is the time of day when we booted. Since then, some time may
-- 
GitLab


From bebabb76ad9acca8858e0371e102fb60d708e25b Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Fri, 27 Aug 2021 11:25:14 +0200
Subject: [PATCH 0069/4878] KVM: x86: Fix stack-out-of-bounds memory access
 from ioapic_write_indirect()

commit 2f9b68f57c6278c322793a06063181deded0ad69 upstream.

KASAN reports the following issue:

 BUG: KASAN: stack-out-of-bounds in kvm_make_vcpus_request_mask+0x174/0x440 [kvm]
 Read of size 8 at addr ffffc9001364f638 by task qemu-kvm/4798

 CPU: 0 PID: 4798 Comm: qemu-kvm Tainted: G               X --------- ---
 Hardware name: AMD Corporation DAYTONA_X/DAYTONA_X, BIOS RYM0081C 07/13/2020
 Call Trace:
  dump_stack+0xa5/0xe6
  print_address_description.constprop.0+0x18/0x130
  ? kvm_make_vcpus_request_mask+0x174/0x440 [kvm]
  __kasan_report.cold+0x7f/0x114
  ? kvm_make_vcpus_request_mask+0x174/0x440 [kvm]
  kasan_report+0x38/0x50
  kasan_check_range+0xf5/0x1d0
  kvm_make_vcpus_request_mask+0x174/0x440 [kvm]
  kvm_make_scan_ioapic_request_mask+0x84/0xc0 [kvm]
  ? kvm_arch_exit+0x110/0x110 [kvm]
  ? sched_clock+0x5/0x10
  ioapic_write_indirect+0x59f/0x9e0 [kvm]
  ? static_obj+0xc0/0xc0
  ? __lock_acquired+0x1d2/0x8c0
  ? kvm_ioapic_eoi_inject_work+0x120/0x120 [kvm]

The problem appears to be that 'vcpu_bitmap' is allocated as a single long
on stack and it should really be KVM_MAX_VCPUS long. We also seem to clear
the lower 16 bits of it with bitmap_zero() for no particular reason (my
guess would be that 'bitmap' and 'vcpu_bitmap' variables in
kvm_bitmap_or_dest_vcpus() caused the confusion: while the later is indeed
16-bit long, the later should accommodate all possible vCPUs).

Fixes: 7ee30bc132c6 ("KVM: x86: deliver KVM IOAPIC scan request to target vCPUs")
Fixes: 9a2ae9f6b6bb ("KVM: x86: Zero the IOAPIC scan request dest vCPUs bitmap")
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210827092516.1027264-7-vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/ioapic.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index ff005fe738a4c..8c065da73f8e5 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -319,8 +319,8 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 	unsigned index;
 	bool mask_before, mask_after;
 	union kvm_ioapic_redirect_entry *e;
-	unsigned long vcpu_bitmap;
 	int old_remote_irr, old_delivery_status, old_dest_id, old_dest_mode;
+	DECLARE_BITMAP(vcpu_bitmap, KVM_MAX_VCPUS);
 
 	switch (ioapic->ioregsel) {
 	case IOAPIC_REG_VERSION:
@@ -384,9 +384,9 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 			irq.shorthand = APIC_DEST_NOSHORT;
 			irq.dest_id = e->fields.dest_id;
 			irq.msi_redir_hint = false;
-			bitmap_zero(&vcpu_bitmap, 16);
+			bitmap_zero(vcpu_bitmap, KVM_MAX_VCPUS);
 			kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq,
-						 &vcpu_bitmap);
+						 vcpu_bitmap);
 			if (old_dest_mode != e->fields.dest_mode ||
 			    old_dest_id != e->fields.dest_id) {
 				/*
@@ -399,10 +399,10 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 				    kvm_lapic_irq_dest_mode(
 					!!e->fields.dest_mode);
 				kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq,
-							 &vcpu_bitmap);
+							 vcpu_bitmap);
 			}
 			kvm_make_scan_ioapic_request_mask(ioapic->kvm,
-							  &vcpu_bitmap);
+							  vcpu_bitmap);
 		} else {
 			kvm_make_scan_ioapic_request(ioapic->kvm);
 		}
-- 
GitLab


From 4ed671e6bc62325729311dbc75c6db52d10233a7 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Tue, 14 Sep 2021 18:48:16 +0300
Subject: [PATCH 0070/4878] KVM: x86: nSVM: don't copy virt_ext from vmcb12

commit faf6b755629627f19feafa75b32e81cd7738f12d upstream.

These field correspond to features that we don't expose yet to L2

While currently there are no CVE worthy features in this field,
if AMD adds more features to this field, that could allow guest
escapes similar to CVE-2021-3653 and CVE-2021-3656.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210914154825.104886-6-mlevitsk@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/svm/nested.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index df17146e841fb..f0946872f5e6d 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -447,7 +447,6 @@ static void nested_prepare_vmcb_control(struct vcpu_svm *svm)
 		(svm->nested.ctl.int_ctl & int_ctl_vmcb12_bits) |
 		(svm->nested.hsave->control.int_ctl & int_ctl_vmcb01_bits);
 
-	svm->vmcb->control.virt_ext            = svm->nested.ctl.virt_ext;
 	svm->vmcb->control.int_vector          = svm->nested.ctl.int_vector;
 	svm->vmcb->control.int_state           = svm->nested.ctl.int_state;
 	svm->vmcb->control.event_inj           = svm->nested.ctl.event_inj;
-- 
GitLab


From 3778511dfc5941b0ee99d1040faab5c69e51dfac Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Tue, 7 Sep 2021 18:35:30 +0200
Subject: [PATCH 0071/4878] KVM: nVMX: Filter out all unsupported controls when
 eVMCS was activated

commit 8d68bad6d869fae8f4d50ab6423538dec7da72d1 upstream.

Windows Server 2022 with Hyper-V role enabled failed to boot on KVM when
enlightened VMCS is advertised. Debugging revealed there are two exposed
secondary controls it is not happy with: SECONDARY_EXEC_ENABLE_VMFUNC and
SECONDARY_EXEC_SHADOW_VMCS. These controls are known to be unsupported,
as there are no corresponding fields in eVMCSv1 (see the comment above
EVMCS1_UNSUPPORTED_2NDEXEC definition).

Previously, commit 31de3d2500e4 ("x86/kvm/hyper-v: move VMX controls
sanitization out of nested_enable_evmcs()") introduced the required
filtering mechanism for VMX MSRs but for some reason put only known
to be problematic (and not full EVMCS1_UNSUPPORTED_* lists) controls
there.

Note, Windows Server 2022 seems to have gained some sanity check for VMX
MSRs: it doesn't even try to launch a guest when there's something it
doesn't like, nested_evmcs_check_controls() mechanism can't catch the
problem.

Let's be bold this time and instead of playing whack-a-mole just filter out
all unsupported controls from VMX MSRs.

Fixes: 31de3d2500e4 ("x86/kvm/hyper-v: move VMX controls sanitization out of nested_enable_evmcs()")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210907163530.110066-1-vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/evmcs.c | 12 +++++++++---
 arch/x86/kvm/vmx/vmx.c   |  9 +++++----
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/vmx/evmcs.c b/arch/x86/kvm/vmx/evmcs.c
index f3199bb02f22d..c0d6fee9225fe 100644
--- a/arch/x86/kvm/vmx/evmcs.c
+++ b/arch/x86/kvm/vmx/evmcs.c
@@ -352,14 +352,20 @@ void nested_evmcs_filter_control_msr(u32 msr_index, u64 *pdata)
 	switch (msr_index) {
 	case MSR_IA32_VMX_EXIT_CTLS:
 	case MSR_IA32_VMX_TRUE_EXIT_CTLS:
-		ctl_high &= ~VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL;
+		ctl_high &= ~EVMCS1_UNSUPPORTED_VMEXIT_CTRL;
 		break;
 	case MSR_IA32_VMX_ENTRY_CTLS:
 	case MSR_IA32_VMX_TRUE_ENTRY_CTLS:
-		ctl_high &= ~VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL;
+		ctl_high &= ~EVMCS1_UNSUPPORTED_VMENTRY_CTRL;
 		break;
 	case MSR_IA32_VMX_PROCBASED_CTLS2:
-		ctl_high &= ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+		ctl_high &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
+		break;
+	case MSR_IA32_VMX_PINBASED_CTLS:
+		ctl_high &= ~EVMCS1_UNSUPPORTED_PINCTRL;
+		break;
+	case MSR_IA32_VMX_VMFUNC:
+		ctl_low &= ~EVMCS1_UNSUPPORTED_VMFUNC;
 		break;
 	}
 
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index fcd8bcb7e0ea9..e0dba0037a85f 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1867,10 +1867,11 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 				    &msr_info->data))
 			return 1;
 		/*
-		 * Enlightened VMCS v1 doesn't have certain fields, but buggy
-		 * Hyper-V versions are still trying to use corresponding
-		 * features when they are exposed. Filter out the essential
-		 * minimum.
+		 * Enlightened VMCS v1 doesn't have certain VMCS fields but
+		 * instead of just ignoring the features, different Hyper-V
+		 * versions are either trying to use them and fail or do some
+		 * sanity checking and refuse to boot. Filter all unsupported
+		 * features out.
 		 */
 		if (!msr_info->host_initiated &&
 		    vmx->nested.enlightened_vmcs_enabled)
-- 
GitLab


From 249e5e5a501ee69b26d55b68f863671396e62f7f Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Wed, 1 Sep 2021 13:30:26 -0700
Subject: [PATCH 0072/4878] KVM: rseq: Update rseq when processing
 NOTIFY_RESUME on xfer to KVM guest

commit 8646e53633f314e4d746a988240d3b951a92f94a upstream.

Invoke rseq's NOTIFY_RESUME handler when processing the flag prior to
transferring to a KVM guest, which is roughly equivalent to an exit to
userspace and processes many of the same pending actions.  While the task
cannot be in an rseq critical section as the KVM path is reachable only
by via ioctl(KVM_RUN), the side effects that apply to rseq outside of a
critical section still apply, e.g. the current CPU needs to be updated if
the task is migrated.

Clearing TIF_NOTIFY_RESUME without informing rseq can lead to segfaults
and other badness in userspace VMMs that use rseq in combination with KVM,
e.g. due to the CPU ID being stale after task migration.

Fixes: 72c3c0fe54a3 ("x86/kvm: Use generic xfer to guest work function")
Reported-by: Peter Foley <pefoley@google.com>
Bisected-by: Doug Evans <dje@google.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210901203030.1292304-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[sean: Resolve benign conflict due to unrelated access_ok() check in 5.10]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/entry/kvm.c |  4 +++-
 kernel/rseq.c      | 13 ++++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/kernel/entry/kvm.c b/kernel/entry/kvm.c
index b6678a5e3cf64..2a3139dab109e 100644
--- a/kernel/entry/kvm.c
+++ b/kernel/entry/kvm.c
@@ -16,8 +16,10 @@ static int xfer_to_guest_mode_work(struct kvm_vcpu *vcpu, unsigned long ti_work)
 		if (ti_work & _TIF_NEED_RESCHED)
 			schedule();
 
-		if (ti_work & _TIF_NOTIFY_RESUME)
+		if (ti_work & _TIF_NOTIFY_RESUME) {
 			tracehook_notify_resume(NULL);
+			rseq_handle_notify_resume(NULL, NULL);
+		}
 
 		ret = arch_xfer_to_guest_mode_handle_work(vcpu, ti_work);
 		if (ret)
diff --git a/kernel/rseq.c b/kernel/rseq.c
index a4f86a9d6937c..0077713bf2400 100644
--- a/kernel/rseq.c
+++ b/kernel/rseq.c
@@ -268,9 +268,16 @@ void __rseq_handle_notify_resume(struct ksignal *ksig, struct pt_regs *regs)
 		return;
 	if (unlikely(!access_ok(t->rseq, sizeof(*t->rseq))))
 		goto error;
-	ret = rseq_ip_fixup(regs);
-	if (unlikely(ret < 0))
-		goto error;
+	/*
+	 * regs is NULL if and only if the caller is in a syscall path.  Skip
+	 * fixup and leave rseq_cs as is so that rseq_sycall() will detect and
+	 * kill a misbehaving userspace on debug kernels.
+	 */
+	if (regs) {
+		ret = rseq_ip_fixup(regs);
+		if (unlikely(ret < 0))
+			goto error;
+	}
 	if (unlikely(rseq_update_cpu_id(t)))
 		goto error;
 	return;
-- 
GitLab


From 31a13f039e15e6e16d30081cd07a8bbb1d9526e3 Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Tue, 14 Sep 2021 16:57:46 +0200
Subject: [PATCH 0073/4878] media: ir_toy: prevent device from hanging during
 transmit

commit f0c15b360fb65ee39849afe987c16eb3d0175d0d upstream.

If the IR Toy is receiving IR while a transmit is done, it may end up
hanging. We can prevent this from happening by re-entering sample mode
just before issuing the transmit command.

Link: https://github.com/bengtmartensson/HarcHardware/discussions/25

Cc: stable@vger.kernel.org
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/rc/ir_toy.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/ir_toy.c b/drivers/media/rc/ir_toy.c
index 3e729a17b35ff..48d52baec1a1c 100644
--- a/drivers/media/rc/ir_toy.c
+++ b/drivers/media/rc/ir_toy.c
@@ -24,6 +24,7 @@ static const u8 COMMAND_VERSION[] = { 'v' };
 // End transmit and repeat reset command so we exit sump mode
 static const u8 COMMAND_RESET[] = { 0xff, 0xff, 0, 0, 0, 0, 0 };
 static const u8 COMMAND_SMODE_ENTER[] = { 's' };
+static const u8 COMMAND_SMODE_EXIT[] = { 0 };
 static const u8 COMMAND_TXSTART[] = { 0x26, 0x24, 0x25, 0x03 };
 
 #define REPLY_XMITCOUNT 't'
@@ -309,12 +310,30 @@ static int irtoy_tx(struct rc_dev *rc, uint *txbuf, uint count)
 		buf[i] = cpu_to_be16(v);
 	}
 
-	buf[count] = cpu_to_be16(0xffff);
+	buf[count] = 0xffff;
 
 	irtoy->tx_buf = buf;
 	irtoy->tx_len = size;
 	irtoy->emitted = 0;
 
+	// There is an issue where if the unit is receiving IR while the
+	// first TXSTART command is sent, the device might end up hanging
+	// with its led on. It does not respond to any command when this
+	// happens. To work around this, re-enter sample mode.
+	err = irtoy_command(irtoy, COMMAND_SMODE_EXIT,
+			    sizeof(COMMAND_SMODE_EXIT), STATE_RESET);
+	if (err) {
+		dev_err(irtoy->dev, "exit sample mode: %d\n", err);
+		return err;
+	}
+
+	err = irtoy_command(irtoy, COMMAND_SMODE_ENTER,
+			    sizeof(COMMAND_SMODE_ENTER), STATE_COMMAND);
+	if (err) {
+		dev_err(irtoy->dev, "enter sample mode: %d\n", err);
+		return err;
+	}
+
 	err = irtoy_command(irtoy, COMMAND_TXSTART, sizeof(COMMAND_TXSTART),
 			    STATE_TX);
 	kfree(buf);
-- 
GitLab


From 0a16c9751e0f1de96f08643216cf1f19e8a5a787 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgg@nvidia.com>
Date: Wed, 15 Sep 2021 17:21:43 -0300
Subject: [PATCH 0074/4878] RDMA/cma: Do not change
 route.addr.src_addr.ss_family

commit bc0bdc5afaa740d782fbf936aaeebd65e5c2921d upstream.

If the state is not idle then rdma_bind_addr() will immediately fail and
no change to global state should happen.

For instance if the state is already RDMA_CM_LISTEN then this will corrupt
the src_addr and would cause the test in cma_cancel_operation():

		if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev)

To view a mangled src_addr, eg with a IPv6 loopback address but an IPv4
family, failing the test.

This would manifest as this trace from syzkaller:

  BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 lib/list_debug.c:26
  Read of size 8 at addr ffff8881546491e0 by task syz-executor.1/32204

  CPU: 1 PID: 32204 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller #0
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  Call Trace:
   __dump_stack lib/dump_stack.c:79 [inline]
   dump_stack+0x141/0x1d7 lib/dump_stack.c:120
   print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:232
   __kasan_report mm/kasan/report.c:399 [inline]
   kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416
   __list_add_valid+0x93/0xa0 lib/list_debug.c:26
   __list_add include/linux/list.h:67 [inline]
   list_add_tail include/linux/list.h:100 [inline]
   cma_listen_on_all drivers/infiniband/core/cma.c:2557 [inline]
   rdma_listen+0x787/0xe00 drivers/infiniband/core/cma.c:3751
   ucma_listen+0x16a/0x210 drivers/infiniband/core/ucma.c:1102
   ucma_write+0x259/0x350 drivers/infiniband/core/ucma.c:1732
   vfs_write+0x28e/0xa30 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
   entry_SYSCALL_64_after_hwframe+0x44/0xae

Which is indicating that an rdma_id_private was destroyed without doing
cma_cancel_listens().

Instead of trying to re-use the src_addr memory to indirectly create an
any address build one explicitly on the stack and bind to that as any
other normal flow would do.

Link: https://lore.kernel.org/r/0-v1-9fbb33f5e201+2a-cma_listen_jgg@nvidia.com
Cc: stable@vger.kernel.org
Fixes: 732d41c545bb ("RDMA/cma: Make the locking for automatic state transition more clear")
Reported-by: syzbot+6bb0528b13611047209c@syzkaller.appspotmail.com
Tested-by: Hao Sun <sunhao.th@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/cma.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 34b94e5253905..a4962b499b611 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3732,9 +3732,13 @@ int rdma_listen(struct rdma_cm_id *id, int backlog)
 	int ret;
 
 	if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_LISTEN)) {
+		struct sockaddr_in any_in = {
+			.sin_family = AF_INET,
+			.sin_addr.s_addr = htonl(INADDR_ANY),
+		};
+
 		/* For a well behaved ULP state will be RDMA_CM_IDLE */
-		id->route.addr.src_addr.ss_family = AF_INET;
-		ret = rdma_bind_addr(id, cma_src_addr(id_priv));
+		ret = rdma_bind_addr(id, (struct sockaddr *)&any_in);
 		if (ret)
 			return ret;
 		if (WARN_ON(!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND,
-- 
GitLab


From c331fad63b6d527193ae8b7c056b2f10fef53c81 Mon Sep 17 00:00:00 2001
From: Charlene Liu <Charlene.Liu@amd.com>
Date: Mon, 20 Sep 2021 14:30:02 -0400
Subject: [PATCH 0075/4878] drm/amd/display: Pass PCI deviceid into DC

commit d942856865c733ff60450de9691af796ad71d7bc upstream.

[why]
pci deviceid not passed to dal dc, without proper break,
dcn2.x falls into dcn3.x code path

[how]
pass in pci deviceid, and break once dal_version initialized.

Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index ce21a21ddb235..d9525fbedad2d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -951,6 +951,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 
 	init_data.asic_id.pci_revision_id = adev->pdev->revision;
 	init_data.asic_id.hw_internal_rev = adev->external_rev_id;
+	init_data.asic_id.chip_id = adev->pdev->device;
 
 	init_data.asic_id.vram_width = adev->gmc.vram_width;
 	/* TODO: initialize init_data.asic_id.vram_type here!!!! */
-- 
GitLab


From 9f382e1edf90ae03be43dbd4976c2a332cd7ce2d Mon Sep 17 00:00:00 2001
From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Sun, 26 Sep 2021 22:19:35 +0800
Subject: [PATCH 0076/4878] drm/amdgpu: correct initial cp_hqd_quantum for gfx9

commit 9f52c25f59b504a29dda42d83ac1e24d2af535d4 upstream.

didn't read the value of mmCP_HQD_QUANTUM from correct
register offset

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index ac3a88197b2fc..c7d6a677d86d8 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3542,7 +3542,7 @@ static int gfx_v9_0_mqd_init(struct amdgpu_ring *ring)
 
 	/* set static priority for a queue/ring */
 	gfx_v9_0_mqd_set_priority(ring, mqd);
-	mqd->cp_hqd_quantum = RREG32(mmCP_HQD_QUANTUM);
+	mqd->cp_hqd_quantum = RREG32_SOC15(GC, 0, mmCP_HQD_QUANTUM);
 
 	/* map_queues packet doesn't need activate the queue,
 	 * so only kiq need set this field.
-- 
GitLab


From 12cbdaeeb5d4dfde7a8c2f9eed93bcfa4f4653cd Mon Sep 17 00:00:00 2001
From: Andrea Claudi <aclaudi@redhat.com>
Date: Fri, 10 Sep 2021 18:08:39 +0200
Subject: [PATCH 0077/4878] ipvs: check that ip_vs_conn_tab_bits is between 8
 and 20

[ Upstream commit 69e73dbfda14fbfe748d3812da1244cce2928dcb ]

ip_vs_conn_tab_bits may be provided by the user through the
conn_tab_bits module parameter. If this value is greater than 31, or
less than 0, the shift operator used to derive tab_size causes undefined
behaviour.

Fix this checking ip_vs_conn_tab_bits value to be in the range specified
in ipvs Kconfig. If not, simply use default value.

Fixes: 6f7edb4881bf ("IPVS: Allow boot time change of hash size")
Reported-by: Yi Chen <yiche@redhat.com>
Signed-off-by: Andrea Claudi <aclaudi@redhat.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/ipvs/ip_vs_conn.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index c100c6b112c81..2c467c422dc63 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -1468,6 +1468,10 @@ int __init ip_vs_conn_init(void)
 	int idx;
 
 	/* Compute size and mask */
+	if (ip_vs_conn_tab_bits < 8 || ip_vs_conn_tab_bits > 20) {
+		pr_info("conn_tab_bits not in [8, 20]. Using default value\n");
+		ip_vs_conn_tab_bits = CONFIG_IP_VS_TAB_BITS;
+	}
 	ip_vs_conn_tab_size = 1 << ip_vs_conn_tab_bits;
 	ip_vs_conn_tab_mask = ip_vs_conn_tab_size - 1;
 
-- 
GitLab


From d93f65586c59a555dc4ef2fe365d32457bef0fde Mon Sep 17 00:00:00 2001
From: Hou Tao <houtao1@huawei.com>
Date: Tue, 14 Sep 2021 10:33:51 +0800
Subject: [PATCH 0078/4878] bpf: Handle return value of
 BPF_PROG_TYPE_STRUCT_OPS prog

[ Upstream commit 356ed64991c6847a0c4f2e8fa3b1133f7a14f1fc ]

Currently if a function ptr in struct_ops has a return value, its
caller will get a random return value from it, because the return
value of related BPF_PROG_TYPE_STRUCT_OPS prog is just dropped.

So adding a new flag BPF_TRAMP_F_RET_FENTRY_RET to tell bpf trampoline
to save and return the return value of struct_ops prog if ret_size of
the function ptr is greater than 0. Also restricting the flag to be
used alone.

Fixes: 85d33df357b6 ("bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210914023351.3664499-1-houtao1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/net/bpf_jit_comp.c | 53 ++++++++++++++++++++++++++++---------
 include/linux/bpf.h         |  2 ++
 kernel/bpf/bpf_struct_ops.c |  7 +++--
 3 files changed, 47 insertions(+), 15 deletions(-)

diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 0a962cd6bac18..a0a7ead52698c 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -1547,7 +1547,7 @@ static void restore_regs(const struct btf_func_model *m, u8 **prog, int nr_args,
 }
 
 static int invoke_bpf_prog(const struct btf_func_model *m, u8 **pprog,
-			   struct bpf_prog *p, int stack_size, bool mod_ret)
+			   struct bpf_prog *p, int stack_size, bool save_ret)
 {
 	u8 *prog = *pprog;
 	int cnt = 0;
@@ -1573,11 +1573,15 @@ static int invoke_bpf_prog(const struct btf_func_model *m, u8 **pprog,
 	if (emit_call(&prog, p->bpf_func, prog))
 		return -EINVAL;
 
-	/* BPF_TRAMP_MODIFY_RETURN trampolines can modify the return
+	/*
+	 * BPF_TRAMP_MODIFY_RETURN trampolines can modify the return
 	 * of the previous call which is then passed on the stack to
 	 * the next BPF program.
+	 *
+	 * BPF_TRAMP_FENTRY trampoline may need to return the return
+	 * value of BPF_PROG_TYPE_STRUCT_OPS prog.
 	 */
-	if (mod_ret)
+	if (save_ret)
 		emit_stx(&prog, BPF_DW, BPF_REG_FP, BPF_REG_0, -8);
 
 	if (p->aux->sleepable) {
@@ -1645,13 +1649,15 @@ static int emit_cond_near_jump(u8 **pprog, void *func, void *ip, u8 jmp_cond)
 }
 
 static int invoke_bpf(const struct btf_func_model *m, u8 **pprog,
-		      struct bpf_tramp_progs *tp, int stack_size)
+		      struct bpf_tramp_progs *tp, int stack_size,
+		      bool save_ret)
 {
 	int i;
 	u8 *prog = *pprog;
 
 	for (i = 0; i < tp->nr_progs; i++) {
-		if (invoke_bpf_prog(m, &prog, tp->progs[i], stack_size, false))
+		if (invoke_bpf_prog(m, &prog, tp->progs[i], stack_size,
+				    save_ret))
 			return -EINVAL;
 	}
 	*pprog = prog;
@@ -1694,6 +1700,23 @@ static int invoke_bpf_mod_ret(const struct btf_func_model *m, u8 **pprog,
 	return 0;
 }
 
+static bool is_valid_bpf_tramp_flags(unsigned int flags)
+{
+	if ((flags & BPF_TRAMP_F_RESTORE_REGS) &&
+	    (flags & BPF_TRAMP_F_SKIP_FRAME))
+		return false;
+
+	/*
+	 * BPF_TRAMP_F_RET_FENTRY_RET is only used by bpf_struct_ops,
+	 * and it must be used alone.
+	 */
+	if ((flags & BPF_TRAMP_F_RET_FENTRY_RET) &&
+	    (flags & ~BPF_TRAMP_F_RET_FENTRY_RET))
+		return false;
+
+	return true;
+}
+
 /* Example:
  * __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
  * its 'struct btf_func_model' will be nr_args=2
@@ -1766,17 +1789,19 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image, void *i
 	struct bpf_tramp_progs *fmod_ret = &tprogs[BPF_TRAMP_MODIFY_RETURN];
 	u8 **branches = NULL;
 	u8 *prog;
+	bool save_ret;
 
 	/* x86-64 supports up to 6 arguments. 7+ can be added in the future */
 	if (nr_args > 6)
 		return -ENOTSUPP;
 
-	if ((flags & BPF_TRAMP_F_RESTORE_REGS) &&
-	    (flags & BPF_TRAMP_F_SKIP_FRAME))
+	if (!is_valid_bpf_tramp_flags(flags))
 		return -EINVAL;
 
-	if (flags & BPF_TRAMP_F_CALL_ORIG)
-		stack_size += 8; /* room for return value of orig_call */
+	/* room for return value of orig_call or fentry prog */
+	save_ret = flags & (BPF_TRAMP_F_CALL_ORIG | BPF_TRAMP_F_RET_FENTRY_RET);
+	if (save_ret)
+		stack_size += 8;
 
 	if (flags & BPF_TRAMP_F_SKIP_FRAME)
 		/* skip patched call instruction and point orig_call to actual
@@ -1803,7 +1828,8 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image, void *i
 	}
 
 	if (fentry->nr_progs)
-		if (invoke_bpf(m, &prog, fentry, stack_size))
+		if (invoke_bpf(m, &prog, fentry, stack_size,
+			       flags & BPF_TRAMP_F_RET_FENTRY_RET))
 			return -EINVAL;
 
 	if (fmod_ret->nr_progs) {
@@ -1850,7 +1876,7 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image, void *i
 	}
 
 	if (fexit->nr_progs)
-		if (invoke_bpf(m, &prog, fexit, stack_size)) {
+		if (invoke_bpf(m, &prog, fexit, stack_size, false)) {
 			ret = -EINVAL;
 			goto cleanup;
 		}
@@ -1870,9 +1896,10 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image, void *i
 			ret = -EINVAL;
 			goto cleanup;
 		}
-		/* restore original return value back into RAX */
-		emit_ldx(&prog, BPF_DW, BPF_REG_0, BPF_REG_FP, -8);
 	}
+	/* restore return value of orig_call or fentry prog back into RAX */
+	if (save_ret)
+		emit_ldx(&prog, BPF_DW, BPF_REG_0, BPF_REG_FP, -8);
 
 	EMIT1(0x5B); /* pop rbx */
 	EMIT1(0xC9); /* leave */
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 3f93a50c25efe..0caa448f7b409 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -526,6 +526,8 @@ struct btf_func_model {
  * programs only. Should not be used with normal calls and indirect calls.
  */
 #define BPF_TRAMP_F_SKIP_FRAME		BIT(2)
+/* Return the return value of fentry prog. Only used by bpf_struct_ops. */
+#define BPF_TRAMP_F_RET_FENTRY_RET	BIT(4)
 
 /* Each call __bpf_prog_enter + call bpf_func + call __bpf_prog_exit is ~50
  * bytes on x86.  Pick a number to fit into BPF_IMAGE_SIZE / 2
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index f527063864b55..ac283f9b2332e 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -367,6 +367,7 @@ static int bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
 		const struct btf_type *mtype, *ptype;
 		struct bpf_prog *prog;
 		u32 moff;
+		u32 flags;
 
 		moff = btf_member_bit_offset(t, member) / 8;
 		ptype = btf_type_resolve_ptr(btf_vmlinux, member->type, NULL);
@@ -430,10 +431,12 @@ static int bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
 
 		tprogs[BPF_TRAMP_FENTRY].progs[0] = prog;
 		tprogs[BPF_TRAMP_FENTRY].nr_progs = 1;
+		flags = st_ops->func_models[i].ret_size > 0 ?
+			BPF_TRAMP_F_RET_FENTRY_RET : 0;
 		err = arch_prepare_bpf_trampoline(NULL, image,
 						  st_map->image + PAGE_SIZE,
-						  &st_ops->func_models[i], 0,
-						  tprogs, NULL);
+						  &st_ops->func_models[i],
+						  flags, tprogs, NULL);
 		if (err < 0)
 			goto reset_unlock;
 
-- 
GitLab


From 62ba3c50104b405b522bf539eebf70cf0dce8fcd Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@gentwo.de>
Date: Wed, 8 Sep 2021 13:43:28 +0200
Subject: [PATCH 0079/4878] IB/cma: Do not send IGMP leaves for sendonly
 Multicast groups

[ Upstream commit 2cc74e1ee31d00393b6698ec80b322fd26523da4 ]

ROCE uses IGMP for Multicast instead of the native Infiniband system where
joins are required in order to post messages on the Multicast group.  On
Ethernet one can send Multicast messages to arbitrary addresses without
the need to subscribe to a group.

So ROCE correctly does not send IGMP joins during rdma_join_multicast().

F.e. in cma_iboe_join_multicast() we see:

   if (addr->sa_family == AF_INET) {
                if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
                        ib.rec.hop_limit = IPV6_DEFAULT_HOPLIMIT;
                        if (!send_only) {
                                err = cma_igmp_send(ndev, &ib.rec.mgid,
                                                    true);
                        }
                }
        } else {

So the IGMP join is suppressed as it is unnecessary.

However no such check is done in destroy_mc(). And therefore leaving a
sendonly multicast group will send an IGMP leave.

This means that the following scenario can lead to a multicast receiver
unexpectedly being unsubscribed from a MC group:

1. Sender thread does a sendonly join on MC group X. No IGMP join
   is sent.

2. Receiver thread does a regular join on the same MC Group x.
   IGMP join is sent and the receiver begins to get messages.

3. Sender thread terminates and destroys MC group X.
   IGMP leave is sent and the receiver no longer receives data.

This patch adds the same logic for sendonly joins to destroy_mc() that is
also used in cma_iboe_join_multicast().

Fixes: ab15c95a17b3 ("IB/core: Support for CMA multicast join flags")
Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2109081340540.668072@gentwo.de
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/cma.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index a4962b499b611..3029e96161b54 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1814,6 +1814,8 @@ static void cma_release_port(struct rdma_id_private *id_priv)
 static void destroy_mc(struct rdma_id_private *id_priv,
 		       struct cma_multicast *mc)
 {
+	bool send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);
+
 	if (rdma_cap_ib_mcast(id_priv->id.device, id_priv->id.port_num))
 		ib_sa_free_multicast(mc->sa_mc);
 
@@ -1830,7 +1832,10 @@ static void destroy_mc(struct rdma_id_private *id_priv,
 
 			cma_set_mgid(id_priv, (struct sockaddr *)&mc->addr,
 				     &mgid);
-			cma_igmp_send(ndev, &mgid, false);
+
+			if (!send_only)
+				cma_igmp_send(ndev, &mgid, false);
+
 			dev_put(ndev);
 		}
 
-- 
GitLab


From 3f4e68902d2e545033c80d7ad62fd9a439e573f4 Mon Sep 17 00:00:00 2001
From: Tao Liu <thomas.liu@ucloud.cn>
Date: Mon, 13 Sep 2021 17:33:44 +0800
Subject: [PATCH 0080/4878] RDMA/cma: Fix listener leak in
 rdma_cma_listen_on_all() failure

[ Upstream commit ca465e1f1f9b38fe916a36f7d80c5d25f2337c81 ]

If cma_listen_on_all() fails it leaves the per-device ID still on the
listen_list but the state is not set to RDMA_CM_ADDR_BOUND.

When the cmid is eventually destroyed cma_cancel_listens() is not called
due to the wrong state, however the per-device IDs are still holding the
refcount preventing the ID from being destroyed, thus deadlocking:

 task:rping state:D stack:   0 pid:19605 ppid: 47036 flags:0x00000084
 Call Trace:
  __schedule+0x29a/0x780
  ? free_unref_page_commit+0x9b/0x110
  schedule+0x3c/0xa0
  schedule_timeout+0x215/0x2b0
  ? __flush_work+0x19e/0x1e0
  wait_for_completion+0x8d/0xf0
  _destroy_id+0x144/0x210 [rdma_cm]
  ucma_close_id+0x2b/0x40 [rdma_ucm]
  __destroy_id+0x93/0x2c0 [rdma_ucm]
  ? __xa_erase+0x4a/0xa0
  ucma_destroy_id+0x9a/0x120 [rdma_ucm]
  ucma_write+0xb8/0x130 [rdma_ucm]
  vfs_write+0xb4/0x250
  ksys_write+0xb5/0xd0
  ? syscall_trace_enter.isra.19+0x123/0x190
  do_syscall_64+0x33/0x40
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Ensure that cma_listen_on_all() atomically unwinds its action under the
lock during error.

Fixes: c80a0c52d85c ("RDMA/cma: Add missing error handling of listen_id")
Link: https://lore.kernel.org/r/20210913093344.17230-1-thomas.liu@ucloud.cn
Signed-off-by: Tao Liu <thomas.liu@ucloud.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/cma.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 3029e96161b54..8e54184566f7f 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1750,15 +1750,16 @@ static void cma_cancel_route(struct rdma_id_private *id_priv)
 	}
 }
 
-static void cma_cancel_listens(struct rdma_id_private *id_priv)
+static void _cma_cancel_listens(struct rdma_id_private *id_priv)
 {
 	struct rdma_id_private *dev_id_priv;
 
+	lockdep_assert_held(&lock);
+
 	/*
 	 * Remove from listen_any_list to prevent added devices from spawning
 	 * additional listen requests.
 	 */
-	mutex_lock(&lock);
 	list_del(&id_priv->list);
 
 	while (!list_empty(&id_priv->listen_list)) {
@@ -1772,6 +1773,12 @@ static void cma_cancel_listens(struct rdma_id_private *id_priv)
 		rdma_destroy_id(&dev_id_priv->id);
 		mutex_lock(&lock);
 	}
+}
+
+static void cma_cancel_listens(struct rdma_id_private *id_priv)
+{
+	mutex_lock(&lock);
+	_cma_cancel_listens(id_priv);
 	mutex_unlock(&lock);
 }
 
@@ -2582,7 +2589,7 @@ static int cma_listen_on_all(struct rdma_id_private *id_priv)
 	return 0;
 
 err_listen:
-	list_del(&id_priv->list);
+	_cma_cancel_listens(id_priv);
 	mutex_unlock(&lock);
 	if (to_destroy)
 		rdma_destroy_id(&to_destroy->id);
-- 
GitLab


From c61736a994fe68b0e5498e4e84e1c9108dc41075 Mon Sep 17 00:00:00 2001
From: Piotr Krysiuk <piotras@gmail.com>
Date: Wed, 15 Sep 2021 17:04:37 +0100
Subject: [PATCH 0081/4878] bpf, mips: Validate conditional branch offsets

[ Upstream commit 37cb28ec7d3a36a5bace7063a3dba633ab110f8b ]

The conditional branch instructions on MIPS use 18-bit signed offsets
allowing for a branch range of 128 KBytes (backward and forward).
However, this limit is not observed by the cBPF JIT compiler, and so
the JIT compiler emits out-of-range branches when translating certain
cBPF programs. A specific example of such a cBPF program is included in
the "BPF_MAXINSNS: exec all MSH" test from lib/test_bpf.c that executes
anomalous machine code containing incorrect branch offsets under JIT.

Furthermore, this issue can be abused to craft undesirable machine
code, where the control flow is hijacked to execute arbitrary Kernel
code.

The following steps can be used to reproduce the issue:

  # echo 1 > /proc/sys/net/core/bpf_jit_enable
  # modprobe test_bpf test_name="BPF_MAXINSNS: exec all MSH"

This should produce multiple warnings from build_bimm() similar to:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 209 at arch/mips/mm/uasm-mips.c:210 build_insn+0x558/0x590
  Micro-assembler field overflow
  Modules linked in: test_bpf(+)
  CPU: 0 PID: 209 Comm: modprobe Not tainted 5.14.3 #1
  Stack : 00000000 807bb824 82b33c9c 801843c0 00000000 00000004 00000000 63c9b5ee
          82b33af4 80999898 80910000 80900000 82fd6030 00000001 82b33a98 82087180
          00000000 00000000 80873b28 00000000 000000fc 82b3394c 00000000 2e34312e
          6d6d6f43 809a180f 809a1836 6f6d203a 80900000 00000001 82b33bac 80900000
          00027f80 00000000 00000000 807bb824 00000000 804ed790 001cc317 00000001
  [...]
  Call Trace:
  [<80108f44>] show_stack+0x38/0x118
  [<807a7aac>] dump_stack_lvl+0x5c/0x7c
  [<807a4b3c>] __warn+0xcc/0x140
  [<807a4c3c>] warn_slowpath_fmt+0x8c/0xb8
  [<8011e198>] build_insn+0x558/0x590
  [<8011e358>] uasm_i_bne+0x20/0x2c
  [<80127b48>] build_body+0xa58/0x2a94
  [<80129c98>] bpf_jit_compile+0x114/0x1e4
  [<80613fc4>] bpf_prepare_filter+0x2ec/0x4e4
  [<8061423c>] bpf_prog_create+0x80/0xc4
  [<c0a006e4>] test_bpf_init+0x300/0xba8 [test_bpf]
  [<8010051c>] do_one_initcall+0x50/0x1d4
  [<801c5e54>] do_init_module+0x60/0x220
  [<801c8b20>] sys_finit_module+0xc4/0xfc
  [<801144d0>] syscall_common+0x34/0x58
  [...]
  ---[ end trace a287d9742503c645 ]---

Then the anomalous machine code executes:

=> 0xc0a18000:  addiu   sp,sp,-16
   0xc0a18004:  sw      s3,0(sp)
   0xc0a18008:  sw      s4,4(sp)
   0xc0a1800c:  sw      s5,8(sp)
   0xc0a18010:  sw      ra,12(sp)
   0xc0a18014:  move    s5,a0
   0xc0a18018:  move    s4,zero
   0xc0a1801c:  move    s3,zero

   # __BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 0)
   0xc0a18020:  lui     t6,0x8012
   0xc0a18024:  ori     t4,t6,0x9e14
   0xc0a18028:  li      a1,0
   0xc0a1802c:  jalr    t4
   0xc0a18030:  move    a0,s5
   0xc0a18034:  bnez    v0,0xc0a1ffb8           # incorrect branch offset
   0xc0a18038:  move    v0,zero
   0xc0a1803c:  andi    s4,s3,0xf
   0xc0a18040:  b       0xc0a18048
   0xc0a18044:  sll     s4,s4,0x2
   [...]

   # __BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 0)
   0xc0a1ffa0:  lui     t6,0x8012
   0xc0a1ffa4:  ori     t4,t6,0x9e14
   0xc0a1ffa8:  li      a1,0
   0xc0a1ffac:  jalr    t4
   0xc0a1ffb0:  move    a0,s5
   0xc0a1ffb4:  bnez    v0,0xc0a1ffb8           # incorrect branch offset
   0xc0a1ffb8:  move    v0,zero
   0xc0a1ffbc:  andi    s4,s3,0xf
   0xc0a1ffc0:  b       0xc0a1ffc8
   0xc0a1ffc4:  sll     s4,s4,0x2

   # __BPF_STMT(BPF_LDX | BPF_B | BPF_MSH, 0)
   0xc0a1ffc8:  lui     t6,0x8012
   0xc0a1ffcc:  ori     t4,t6,0x9e14
   0xc0a1ffd0:  li      a1,0
   0xc0a1ffd4:  jalr    t4
   0xc0a1ffd8:  move    a0,s5
   0xc0a1ffdc:  bnez    v0,0xc0a3ffb8           # correct branch offset
   0xc0a1ffe0:  move    v0,zero
   0xc0a1ffe4:  andi    s4,s3,0xf
   0xc0a1ffe8:  b       0xc0a1fff0
   0xc0a1ffec:  sll     s4,s4,0x2
   [...]

   # epilogue
   0xc0a3ffb8:  lw      s3,0(sp)
   0xc0a3ffbc:  lw      s4,4(sp)
   0xc0a3ffc0:  lw      s5,8(sp)
   0xc0a3ffc4:  lw      ra,12(sp)
   0xc0a3ffc8:  addiu   sp,sp,16
   0xc0a3ffcc:  jr      ra
   0xc0a3ffd0:  nop

To mitigate this issue, we assert the branch ranges for each emit call
that could generate an out-of-range branch.

Fixes: 36366e367ee9 ("MIPS: BPF: Restore MIPS32 cBPF JIT")
Fixes: c6610de353da ("MIPS: net: Add BPF JIT")
Signed-off-by: Piotr Krysiuk <piotras@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Acked-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/bpf/20210915160437.4080-1-piotras@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/net/bpf_jit.c | 57 +++++++++++++++++++++++++++++++----------
 1 file changed, 43 insertions(+), 14 deletions(-)

diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
index 0af88622c6192..cb6d22439f71b 100644
--- a/arch/mips/net/bpf_jit.c
+++ b/arch/mips/net/bpf_jit.c
@@ -662,6 +662,11 @@ static void build_epilogue(struct jit_ctx *ctx)
 	((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative : func) : \
 	 func##_positive)
 
+static bool is_bad_offset(int b_off)
+{
+	return b_off > 0x1ffff || b_off < -0x20000;
+}
+
 static int build_body(struct jit_ctx *ctx)
 {
 	const struct bpf_prog *prog = ctx->skf;
@@ -728,7 +733,10 @@ load_common:
 			/* Load return register on DS for failures */
 			emit_reg_move(r_ret, r_zero, ctx);
 			/* Return with error */
-			emit_b(b_imm(prog->len, ctx), ctx);
+			b_off = b_imm(prog->len, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_b(b_off, ctx);
 			emit_nop(ctx);
 			break;
 		case BPF_LD | BPF_W | BPF_IND:
@@ -775,8 +783,10 @@ load_ind:
 			emit_jalr(MIPS_R_RA, r_s0, ctx);
 			emit_reg_move(MIPS_R_A0, r_skb, ctx); /* delay slot */
 			/* Check the error value */
-			emit_bcond(MIPS_COND_NE, r_ret, 0,
-				   b_imm(prog->len, ctx), ctx);
+			b_off = b_imm(prog->len, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_bcond(MIPS_COND_NE, r_ret, 0, b_off, ctx);
 			emit_reg_move(r_ret, r_zero, ctx);
 			/* We are good */
 			/* X <- P[1:K] & 0xf */
@@ -855,8 +865,10 @@ load_ind:
 			/* A /= X */
 			ctx->flags |= SEEN_X | SEEN_A;
 			/* Check if r_X is zero */
-			emit_bcond(MIPS_COND_EQ, r_X, r_zero,
-				   b_imm(prog->len, ctx), ctx);
+			b_off = b_imm(prog->len, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_bcond(MIPS_COND_EQ, r_X, r_zero, b_off, ctx);
 			emit_load_imm(r_ret, 0, ctx); /* delay slot */
 			emit_div(r_A, r_X, ctx);
 			break;
@@ -864,8 +876,10 @@ load_ind:
 			/* A %= X */
 			ctx->flags |= SEEN_X | SEEN_A;
 			/* Check if r_X is zero */
-			emit_bcond(MIPS_COND_EQ, r_X, r_zero,
-				   b_imm(prog->len, ctx), ctx);
+			b_off = b_imm(prog->len, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_bcond(MIPS_COND_EQ, r_X, r_zero, b_off, ctx);
 			emit_load_imm(r_ret, 0, ctx); /* delay slot */
 			emit_mod(r_A, r_X, ctx);
 			break;
@@ -926,7 +940,10 @@ load_ind:
 			break;
 		case BPF_JMP | BPF_JA:
 			/* pc += K */
-			emit_b(b_imm(i + k + 1, ctx), ctx);
+			b_off = b_imm(i + k + 1, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_b(b_off, ctx);
 			emit_nop(ctx);
 			break;
 		case BPF_JMP | BPF_JEQ | BPF_K:
@@ -1056,12 +1073,16 @@ jmp_cmp:
 			break;
 		case BPF_RET | BPF_A:
 			ctx->flags |= SEEN_A;
-			if (i != prog->len - 1)
+			if (i != prog->len - 1) {
 				/*
 				 * If this is not the last instruction
 				 * then jump to the epilogue
 				 */
-				emit_b(b_imm(prog->len, ctx), ctx);
+				b_off = b_imm(prog->len, ctx);
+				if (is_bad_offset(b_off))
+					return -E2BIG;
+				emit_b(b_off, ctx);
+			}
 			emit_reg_move(r_ret, r_A, ctx); /* delay slot */
 			break;
 		case BPF_RET | BPF_K:
@@ -1075,7 +1096,10 @@ jmp_cmp:
 				 * If this is not the last instruction
 				 * then jump to the epilogue
 				 */
-				emit_b(b_imm(prog->len, ctx), ctx);
+				b_off = b_imm(prog->len, ctx);
+				if (is_bad_offset(b_off))
+					return -E2BIG;
+				emit_b(b_off, ctx);
 				emit_nop(ctx);
 			}
 			break;
@@ -1133,8 +1157,10 @@ jmp_cmp:
 			/* Load *dev pointer */
 			emit_load_ptr(r_s0, r_skb, off, ctx);
 			/* error (0) in the delay slot */
-			emit_bcond(MIPS_COND_EQ, r_s0, r_zero,
-				   b_imm(prog->len, ctx), ctx);
+			b_off = b_imm(prog->len, ctx);
+			if (is_bad_offset(b_off))
+				return -E2BIG;
+			emit_bcond(MIPS_COND_EQ, r_s0, r_zero, b_off, ctx);
 			emit_reg_move(r_ret, r_zero, ctx);
 			if (code == (BPF_ANC | SKF_AD_IFINDEX)) {
 				BUILD_BUG_ON(sizeof_field(struct net_device, ifindex) != 4);
@@ -1244,7 +1270,10 @@ void bpf_jit_compile(struct bpf_prog *fp)
 
 	/* Generate the actual JIT code */
 	build_prologue(&ctx);
-	build_body(&ctx);
+	if (build_body(&ctx)) {
+		module_memfree(ctx.target);
+		goto out;
+	}
 	build_epilogue(&ctx);
 
 	/* Update the icache */
-- 
GitLab


From 76bbb482d33bfcd7e9070ecf594c9ec73e01c930 Mon Sep 17 00:00:00 2001
From: Vadim Pasternak <vadimp@nvidia.com>
Date: Thu, 16 Sep 2021 21:31:51 +0300
Subject: [PATCH 0082/4878] hwmon: (mlxreg-fan) Return non-zero value when fan
 current state is enforced from sysfs

[ Upstream commit e6fab7af6ba1bc77c78713a83876f60ca7a4a064 ]

Fan speed minimum can be enforced from sysfs. For example, setting
current fan speed to 20 is used to enforce fan speed to be at 100%
speed, 19 - to be not below 90% speed, etcetera. This feature provides
ability to limit fan speed according to some system wise
considerations, like absence of some replaceable units or high system
ambient temperature.

Request for changing fan minimum speed is configuration request and can
be set only through 'sysfs' write procedure. In this situation value of
argument 'state' is above nominal fan speed maximum.

Return non-zero code in this case to avoid
thermal_cooling_device_stats_update() call, because in this case
statistics update violates thermal statistics table range.
The issues is observed in case kernel is configured with option
CONFIG_THERMAL_STATISTICS.

Here is the trace from KASAN:
[  159.506659] BUG: KASAN: slab-out-of-bounds in thermal_cooling_device_stats_update+0x7d/0xb0
[  159.516016] Read of size 4 at addr ffff888116163840 by task hw-management.s/7444
[  159.545625] Call Trace:
[  159.548366]  dump_stack+0x92/0xc1
[  159.552084]  ? thermal_cooling_device_stats_update+0x7d/0xb0
[  159.635869]  thermal_zone_device_update+0x345/0x780
[  159.688711]  thermal_zone_device_set_mode+0x7d/0xc0
[  159.694174]  mlxsw_thermal_modules_init+0x48f/0x590 [mlxsw_core]
[  159.700972]  ? mlxsw_thermal_set_cur_state+0x5a0/0x5a0 [mlxsw_core]
[  159.731827]  mlxsw_thermal_init+0x763/0x880 [mlxsw_core]
[  160.070233] RIP: 0033:0x7fd995909970
[  160.074239] Code: 73 01 c3 48 8b 0d 28 d5 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 99 2d 2c 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ..
[  160.095242] RSP: 002b:00007fff54f5d938 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  160.103722] RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 00007fd995909970
[  160.111710] RDX: 0000000000000013 RSI: 0000000001906008 RDI: 0000000000000001
[  160.119699] RBP: 0000000001906008 R08: 00007fd995bc9760 R09: 00007fd996210700
[  160.127687] R10: 0000000000000073 R11: 0000000000000246 R12: 0000000000000013
[  160.135673] R13: 0000000000000001 R14: 00007fd995bc8600 R15: 0000000000000013
[  160.143671]
[  160.145338] Allocated by task 2924:
[  160.149242]  kasan_save_stack+0x19/0x40
[  160.153541]  __kasan_kmalloc+0x7f/0xa0
[  160.157743]  __kmalloc+0x1a2/0x2b0
[  160.161552]  thermal_cooling_device_setup_sysfs+0xf9/0x1a0
[  160.167687]  __thermal_cooling_device_register+0x1b5/0x500
[  160.173833]  devm_thermal_of_cooling_device_register+0x60/0xa0
[  160.180356]  mlxreg_fan_probe+0x474/0x5e0 [mlxreg_fan]
[  160.248140]
[  160.249807] The buggy address belongs to the object at ffff888116163400
[  160.249807]  which belongs to the cache kmalloc-1k of size 1024
[  160.263814] The buggy address is located 64 bytes to the right of
[  160.263814]  1024-byte region [ffff888116163400, ffff888116163800)
[  160.277536] The buggy address belongs to the page:
[  160.282898] page:0000000012275840 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888116167000 pfn:0x116160
[  160.294872] head:0000000012275840 order:3 compound_mapcount:0 compound_pincount:0
[  160.303251] flags: 0x200000000010200(slab|head|node=0|zone=2)
[  160.309694] raw: 0200000000010200 ffffea00046f7208 ffffea0004928208 ffff88810004dbc0
[  160.318367] raw: ffff888116167000 00000000000a0006 00000001ffffffff 0000000000000000
[  160.327033] page dumped because: kasan: bad access detected
[  160.333270]
[  160.334937] Memory state around the buggy address:
[  160.356469] >ffff888116163800: fc ..

Fixes: 65afb4c8e7e4 ("hwmon: (mlxreg-fan) Add support for Mellanox FAN driver")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20210916183151.869427-1-vadimp@nvidia.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/mlxreg-fan.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/mlxreg-fan.c b/drivers/hwmon/mlxreg-fan.c
index ed8d59d4eecb3..bd8f5a3aaad9c 100644
--- a/drivers/hwmon/mlxreg-fan.c
+++ b/drivers/hwmon/mlxreg-fan.c
@@ -291,8 +291,8 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
 {
 	struct mlxreg_fan *fan = cdev->devdata;
 	unsigned long cur_state;
+	int i, config = 0;
 	u32 regval;
-	int i;
 	int err;
 
 	/*
@@ -305,6 +305,12 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
 	 * overwritten.
 	 */
 	if (state >= MLXREG_FAN_SPEED_MIN && state <= MLXREG_FAN_SPEED_MAX) {
+		/*
+		 * This is configuration change, which is only supported through sysfs.
+		 * For configuration non-zero value is to be returned to avoid thermal
+		 * statistics update.
+		 */
+		config = 1;
 		state -= MLXREG_FAN_MAX_STATE;
 		for (i = 0; i < state; i++)
 			fan->cooling_levels[i] = state;
@@ -319,7 +325,7 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
 
 		cur_state = MLXREG_FAN_PWM_DUTY2STATE(regval);
 		if (state < cur_state)
-			return 0;
+			return config;
 
 		state = cur_state;
 	}
@@ -335,7 +341,7 @@ static int mlxreg_fan_set_cur_state(struct thermal_cooling_device *cdev,
 		dev_err(fan->dev, "Failed to write PWM duty\n");
 		return err;
 	}
-	return 0;
+	return config;
 }
 
 static const struct thermal_cooling_device_ops mlxreg_fan_cooling_ops = {
-- 
GitLab


From 3748871e1215834a5671849162afbcc4328f7f96 Mon Sep 17 00:00:00 2001
From: Chih-Kang Chang <gary.chang@realtek.com>
Date: Mon, 30 Aug 2021 15:32:40 +0800
Subject: [PATCH 0083/4878] mac80211: Fix ieee80211_amsdu_aggregate frag_tail
 bug

[ Upstream commit fe94bac626d9c1c5bc98ab32707be8a9d7f8adba ]

In ieee80211_amsdu_aggregate() set a pointer frag_tail point to the
end of skb_shinfo(head)->frag_list, and use it to bind other skb in
the end of this function. But when execute ieee80211_amsdu_aggregate()
->ieee80211_amsdu_realloc_pad()->pskb_expand_head(), the address of
skb_shinfo(head)->frag_list will be changed. However, the
ieee80211_amsdu_aggregate() not update frag_tail after call
pskb_expand_head(). That will cause the second skb can't bind to the
head skb appropriately.So we update the address of frag_tail to fix it.

Fixes: 6e0456b54545 ("mac80211: add A-MSDU tx support")
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20210830073240.12736-1-pkshih@realtek.com
[reword comment]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/tx.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 673ad3cf2c3ab..bef517ccdecbb 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3365,6 +3365,14 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	if (!ieee80211_amsdu_prepare_head(sdata, fast_tx, head))
 		goto out;
 
+	/* If n == 2, the "while (*frag_tail)" loop above didn't execute
+	 * and  frag_tail should be &skb_shinfo(head)->frag_list.
+	 * However, ieee80211_amsdu_prepare_head() can reallocate it.
+	 * Reload frag_tail to have it pointing to the correct place.
+	 */
+	if (n == 2)
+		frag_tail = &skb_shinfo(head)->frag_list;
+
 	/*
 	 * Pad out the previous subframe to a multiple of 4 by adding the
 	 * padding to the next one, that's being added. Note that head->len
-- 
GitLab


From 1282bb00835ff79d2d9c023055d514df5b4de260 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 20 Sep 2021 14:45:22 +0200
Subject: [PATCH 0084/4878] mac80211: limit injected vht mcs/nss in
 ieee80211_parse_tx_radiotap

[ Upstream commit 13cb6d826e0ac0d144b0d48191ff1a111d32f0c6 ]

Limit max values for vht mcs and nss in ieee80211_parse_tx_radiotap
routine in order to fix the following warning reported by syzbot:

WARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_rate_set_vht include/net/mac80211.h:989 [inline]
WARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244
Modules linked in:
CPU: 0 PID: 10717 Comm: syz-executor.5 Not tainted 5.14.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ieee80211_rate_set_vht include/net/mac80211.h:989 [inline]
RIP: 0010:ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244
RSP: 0018:ffffc9000186f3e8 EFLAGS: 00010216
RAX: 0000000000000618 RBX: ffff88804ef76500 RCX: ffffc900143a5000
RDX: 0000000000040000 RSI: ffffffff888f478e RDI: 0000000000000003
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000100
R10: ffffffff888f46f9 R11: 0000000000000000 R12: 00000000fffffff8
R13: ffff88804ef7653c R14: 0000000000000001 R15: 0000000000000004
FS:  00007fbf5718f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2de23000 CR3: 000000006a671000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 ieee80211_monitor_select_queue+0xa6/0x250 net/mac80211/iface.c:740
 netdev_core_pick_tx+0x169/0x2e0 net/core/dev.c:4089
 __dev_queue_xmit+0x6f9/0x3710 net/core/dev.c:4165
 __bpf_tx_skb net/core/filter.c:2114 [inline]
 __bpf_redirect_no_mac net/core/filter.c:2139 [inline]
 __bpf_redirect+0x5ba/0xd20 net/core/filter.c:2162
 ____bpf_clone_redirect net/core/filter.c:2429 [inline]
 bpf_clone_redirect+0x2ae/0x420 net/core/filter.c:2401
 bpf_prog_eeb6f53a69e5c6a2+0x59/0x234
 bpf_dispatcher_nop_func include/linux/bpf.h:717 [inline]
 __bpf_prog_run include/linux/filter.h:624 [inline]
 bpf_prog_run include/linux/filter.h:631 [inline]
 bpf_test_run+0x381/0xa30 net/bpf/test_run.c:119
 bpf_prog_test_run_skb+0xb84/0x1ee0 net/bpf/test_run.c:663
 bpf_prog_test_run kernel/bpf/syscall.c:3307 [inline]
 __sys_bpf+0x2137/0x5df0 kernel/bpf/syscall.c:4605
 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4689 [inline]
 __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9

Reported-by: syzbot+0196ac871673f0c20f68@syzkaller.appspotmail.com
Fixes: 646e76bb5daf4 ("mac80211: parse VHT info in injected frames")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/c26c3f02dcb38ab63b2f2534cb463d95ee81bb13.1632141760.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/tx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bef517ccdecbb..bbbcc678c655c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2177,7 +2177,11 @@ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb,
 			}
 
 			vht_mcs = iterator.this_arg[4] >> 4;
+			if (vht_mcs > 11)
+				vht_mcs = 0;
 			vht_nss = iterator.this_arg[4] & 0xF;
+			if (!vht_nss || vht_nss > 8)
+				vht_nss = 1;
 			break;
 
 		/*
-- 
GitLab


From 8576e72ac5d651c3ef41afc54b657bed7e9a69d7 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 20 Sep 2021 15:40:05 +0200
Subject: [PATCH 0085/4878] mac80211: mesh: fix potentially unaligned access

[ Upstream commit b9731062ce8afd35cf723bf3a8ad55d208f915a5 ]

The pointer here points directly into the frame, so the
access is potentially unaligned. Use get_unaligned_le16
to avoid that.

Fixes: 3f52b7e328c5 ("mac80211: mesh power save basics")
Link: https://lore.kernel.org/r/20210920154009.3110ff75be0c.Ib6a2ff9e9cc9bc6fca50fce631ec1ce725cc926b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/mesh_ps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/mesh_ps.c b/net/mac80211/mesh_ps.c
index 204830a55240b..3fbd0b9ff9135 100644
--- a/net/mac80211/mesh_ps.c
+++ b/net/mac80211/mesh_ps.c
@@ -2,6 +2,7 @@
 /*
  * Copyright 2012-2013, Marco Porsch <marco.porsch@s2005.tu-chemnitz.de>
  * Copyright 2012-2013, cozybit Inc.
+ * Copyright (C) 2021 Intel Corporation
  */
 
 #include "mesh.h"
@@ -588,7 +589,7 @@ void ieee80211_mps_frame_release(struct sta_info *sta,
 
 	/* only transmit to PS STA with announced, non-zero awake window */
 	if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
-	    (!elems->awake_window || !le16_to_cpu(*elems->awake_window)))
+	    (!elems->awake_window || !get_unaligned_le16(elems->awake_window)))
 		return;
 
 	if (!test_sta_flag(sta, WLAN_STA_MPSP_OWNER))
-- 
GitLab


From 2c204cf594df3b9468368dc9d0b24d482d93cda7 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 Sep 2021 11:29:37 +0200
Subject: [PATCH 0086/4878] mac80211-hwsim: fix late beacon hrtimer handling

[ Upstream commit 313bbd1990b6ddfdaa7da098d0c56b098a833572 ]

Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx
that our handling of the hrtimer here is wrong: If the timer fires
late (e.g. due to vCPU scheduling, as reported by Dmitry/syzbot)
then it tries to actually rearm the timer at the next deadline,
which might be in the past already:

 1          2          3          N          N+1
 |          |          |   ...    |          |

 ^ intended to fire here (1)
            ^ next deadline here (2)
                                      ^ actually fired here

The next time it fires, it's later, but will still try to schedule
for the next deadline (now 3), etc. until it catches up with N,
but that might take a long time, causing stalls etc.

Now, all of this is simulation, so we just have to fix it, but
note that the behaviour is wrong even per spec, since there's no
value then in sending all those beacons unaligned - they should be
aligned to the TBTT (1, 2, 3, ... in the picture), and if we're a
bit (or a lot) late, then just resume at that point.

Therefore, change the code to use hrtimer_forward_now() which will
ensure that the next firing of the timer would be at N+1 (in the
picture), i.e. the next interval point after the current time.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: syzbot+0e964fad69a9c462bc1e@syzkaller.appspotmail.com
Fixes: 01e59e467ecf ("mac80211_hwsim: hrtimer beacon")
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210915112936.544f383472eb.I3f9712009027aa09244b65399bf18bf482a8c4f1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mac80211_hwsim.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 4ca0b06d09add..b793d61d15d27 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1795,8 +1795,8 @@ mac80211_hwsim_beacon(struct hrtimer *timer)
 		bcn_int -= data->bcn_delta;
 		data->bcn_delta = 0;
 	}
-	hrtimer_forward(&data->beacon_timer, hrtimer_get_expires(timer),
-			ns_to_ktime(bcn_int * NSEC_PER_USEC));
+	hrtimer_forward_now(&data->beacon_timer,
+			    ns_to_ktime(bcn_int * NSEC_PER_USEC));
 	return HRTIMER_RESTART;
 }
 
-- 
GitLab


From 9c6591ae8e63f93c895ad5e2703c36c548aac997 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Thu, 23 Sep 2021 00:05:04 -0400
Subject: [PATCH 0087/4878] sctp: break out if skb_header_pointer returns NULL
 in sctp_rcv_ootb

[ Upstream commit f7e745f8e94492a8ac0b0a26e25f2b19d342918f ]

We should always check if skb_header_pointer's return is NULL before
using it, otherwise it may cause null-ptr-deref, as syzbot reported:

  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
  RIP: 0010:sctp_rcv_ootb net/sctp/input.c:705 [inline]
  RIP: 0010:sctp_rcv+0x1d84/0x3220 net/sctp/input.c:196
  Call Trace:
  <IRQ>
   sctp6_rcv+0x38/0x60 net/sctp/ipv6.c:1109
   ip6_protocol_deliver_rcu+0x2e9/0x1ca0 net/ipv6/ip6_input.c:422
   ip6_input_finish+0x62/0x170 net/ipv6/ip6_input.c:463
   NF_HOOK include/linux/netfilter.h:307 [inline]
   NF_HOOK include/linux/netfilter.h:301 [inline]
   ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:472
   dst_input include/net/dst.h:460 [inline]
   ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline]
   NF_HOOK include/linux/netfilter.h:307 [inline]
   NF_HOOK include/linux/netfilter.h:301 [inline]
   ipv6_rcv+0x28c/0x3c0 net/ipv6/ip6_input.c:297

Fixes: 3acb50c18d8d ("sctp: delay as much as possible skb_linearize")
Reported-by: syzbot+581aff2ae6b860625116@syzkaller.appspotmail.com
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 49c49a4d203f0..34494a0b28bd0 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -677,7 +677,7 @@ static int sctp_rcv_ootb(struct sk_buff *skb)
 		ch = skb_header_pointer(skb, offset, sizeof(*ch), &_ch);
 
 		/* Break out if chunk length is less then minimal. */
-		if (ntohs(ch->length) < sizeof(_ch))
+		if (!ch || ntohs(ch->length) < sizeof(_ch))
 			break;
 
 		ch_end = offset + SCTP_PAD4(ntohs(ch->length));
-- 
GitLab


From 560271d09f780726f52f65cb6f19f0e95084abdc Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Thu, 23 Sep 2021 17:04:11 -0700
Subject: [PATCH 0088/4878] mptcp: don't return sockets in foreign netns

[ Upstream commit ea1300b9df7c8e8b65695a08b8f6aaf4b25fec9c ]

mptcp_token_get_sock() may return a mptcp socket that is in
a different net namespace than the socket that received the token value.

The mptcp syncookie code path had an explicit check for this,
this moves the test into mptcp_token_get_sock() function.

Eventually token.c should be converted to pernet storage, but
such change is not suitable for net tree.

Fixes: 2c5ebd001d4f0 ("mptcp: refactor token container")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mptcp/mptcp_diag.c |  2 +-
 net/mptcp/protocol.h   |  2 +-
 net/mptcp/subflow.c    |  2 +-
 net/mptcp/syncookies.c | 13 +------------
 net/mptcp/token.c      | 11 ++++++++---
 net/mptcp/token_test.c | 14 ++++++++------
 6 files changed, 20 insertions(+), 24 deletions(-)

diff --git a/net/mptcp/mptcp_diag.c b/net/mptcp/mptcp_diag.c
index 5f390a97f556d..f1af3f44875ed 100644
--- a/net/mptcp/mptcp_diag.c
+++ b/net/mptcp/mptcp_diag.c
@@ -36,7 +36,7 @@ static int mptcp_diag_dump_one(struct netlink_callback *cb,
 	struct sock *sk;
 
 	net = sock_net(in_skb->sk);
-	msk = mptcp_token_get_sock(req->id.idiag_cookie[0]);
+	msk = mptcp_token_get_sock(net, req->id.idiag_cookie[0]);
 	if (!msk)
 		goto out_nosk;
 
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index 13ab89dc19141..3e5af8397434a 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -424,7 +424,7 @@ int mptcp_token_new_connect(struct sock *sk);
 void mptcp_token_accept(struct mptcp_subflow_request_sock *r,
 			struct mptcp_sock *msk);
 bool mptcp_token_exists(u32 token);
-struct mptcp_sock *mptcp_token_get_sock(u32 token);
+struct mptcp_sock *mptcp_token_get_sock(struct net *net, u32 token);
 struct mptcp_sock *mptcp_token_iter_next(const struct net *net, long *s_slot,
 					 long *s_num);
 void mptcp_token_destroy(struct mptcp_sock *msk);
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index bba5696fee36d..2e92384909241 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -69,7 +69,7 @@ static struct mptcp_sock *subflow_token_join_request(struct request_sock *req,
 	struct mptcp_sock *msk;
 	int local_id;
 
-	msk = mptcp_token_get_sock(subflow_req->token);
+	msk = mptcp_token_get_sock(sock_net(req_to_sk(req)), subflow_req->token);
 	if (!msk) {
 		SUBFLOW_REQ_INC_STATS(req, MPTCP_MIB_JOINNOTOKEN);
 		return NULL;
diff --git a/net/mptcp/syncookies.c b/net/mptcp/syncookies.c
index 37127781aee98..7f22526346a7e 100644
--- a/net/mptcp/syncookies.c
+++ b/net/mptcp/syncookies.c
@@ -108,18 +108,12 @@ bool mptcp_token_join_cookie_init_state(struct mptcp_subflow_request_sock *subfl
 
 	e->valid = 0;
 
-	msk = mptcp_token_get_sock(e->token);
+	msk = mptcp_token_get_sock(net, e->token);
 	if (!msk) {
 		spin_unlock_bh(&join_entry_locks[i]);
 		return false;
 	}
 
-	/* If this fails, the token got re-used in the mean time by another
-	 * mptcp socket in a different netns, i.e. entry is outdated.
-	 */
-	if (!net_eq(sock_net((struct sock *)msk), net))
-		goto err_put;
-
 	subflow_req->remote_nonce = e->remote_nonce;
 	subflow_req->local_nonce = e->local_nonce;
 	subflow_req->backup = e->backup;
@@ -128,11 +122,6 @@ bool mptcp_token_join_cookie_init_state(struct mptcp_subflow_request_sock *subfl
 	subflow_req->msk = msk;
 	spin_unlock_bh(&join_entry_locks[i]);
 	return true;
-
-err_put:
-	spin_unlock_bh(&join_entry_locks[i]);
-	sock_put((struct sock *)msk);
-	return false;
 }
 
 void __init mptcp_join_cookie_init(void)
diff --git a/net/mptcp/token.c b/net/mptcp/token.c
index 0691a4883f3ab..f0d656bf27ada 100644
--- a/net/mptcp/token.c
+++ b/net/mptcp/token.c
@@ -232,6 +232,7 @@ found:
 
 /**
  * mptcp_token_get_sock - retrieve mptcp connection sock using its token
+ * @net: restrict to this namespace
  * @token: token of the mptcp connection to retrieve
  *
  * This function returns the mptcp connection structure with the given token.
@@ -239,7 +240,7 @@ found:
  *
  * returns NULL if no connection with the given token value exists.
  */
-struct mptcp_sock *mptcp_token_get_sock(u32 token)
+struct mptcp_sock *mptcp_token_get_sock(struct net *net, u32 token)
 {
 	struct hlist_nulls_node *pos;
 	struct token_bucket *bucket;
@@ -252,11 +253,15 @@ struct mptcp_sock *mptcp_token_get_sock(u32 token)
 again:
 	sk_nulls_for_each_rcu(sk, pos, &bucket->msk_chain) {
 		msk = mptcp_sk(sk);
-		if (READ_ONCE(msk->token) != token)
+		if (READ_ONCE(msk->token) != token ||
+		    !net_eq(sock_net(sk), net))
 			continue;
+
 		if (!refcount_inc_not_zero(&sk->sk_refcnt))
 			goto not_found;
-		if (READ_ONCE(msk->token) != token) {
+
+		if (READ_ONCE(msk->token) != token ||
+		    !net_eq(sock_net(sk), net)) {
 			sock_put(sk);
 			goto again;
 		}
diff --git a/net/mptcp/token_test.c b/net/mptcp/token_test.c
index e1bd6f0a0676f..5d984bec1cd86 100644
--- a/net/mptcp/token_test.c
+++ b/net/mptcp/token_test.c
@@ -11,6 +11,7 @@ static struct mptcp_subflow_request_sock *build_req_sock(struct kunit *test)
 			    GFP_USER);
 	KUNIT_EXPECT_NOT_ERR_OR_NULL(test, req);
 	mptcp_token_init_request((struct request_sock *)req);
+	sock_net_set((struct sock *)req, &init_net);
 	return req;
 }
 
@@ -22,7 +23,7 @@ static void mptcp_token_test_req_basic(struct kunit *test)
 	KUNIT_ASSERT_EQ(test, 0,
 			mptcp_token_new_request((struct request_sock *)req));
 	KUNIT_EXPECT_NE(test, 0, (int)req->token);
-	KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(req->token));
+	KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(&init_net, req->token));
 
 	/* cleanup */
 	mptcp_token_destroy_request((struct request_sock *)req);
@@ -55,6 +56,7 @@ static struct mptcp_sock *build_msk(struct kunit *test)
 	msk = kunit_kzalloc(test, sizeof(struct mptcp_sock), GFP_USER);
 	KUNIT_EXPECT_NOT_ERR_OR_NULL(test, msk);
 	refcount_set(&((struct sock *)msk)->sk_refcnt, 1);
+	sock_net_set((struct sock *)msk, &init_net);
 	return msk;
 }
 
@@ -74,11 +76,11 @@ static void mptcp_token_test_msk_basic(struct kunit *test)
 			mptcp_token_new_connect((struct sock *)icsk));
 	KUNIT_EXPECT_NE(test, 0, (int)ctx->token);
 	KUNIT_EXPECT_EQ(test, ctx->token, msk->token);
-	KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(ctx->token));
+	KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(&init_net, ctx->token));
 	KUNIT_EXPECT_EQ(test, 2, (int)refcount_read(&sk->sk_refcnt));
 
 	mptcp_token_destroy(msk);
-	KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(ctx->token));
+	KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(&init_net, ctx->token));
 }
 
 static void mptcp_token_test_accept(struct kunit *test)
@@ -90,11 +92,11 @@ static void mptcp_token_test_accept(struct kunit *test)
 			mptcp_token_new_request((struct request_sock *)req));
 	msk->token = req->token;
 	mptcp_token_accept(req, msk);
-	KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(msk->token));
+	KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(&init_net, msk->token));
 
 	/* this is now a no-op */
 	mptcp_token_destroy_request((struct request_sock *)req);
-	KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(msk->token));
+	KUNIT_EXPECT_PTR_EQ(test, msk, mptcp_token_get_sock(&init_net, msk->token));
 
 	/* cleanup */
 	mptcp_token_destroy(msk);
@@ -116,7 +118,7 @@ static void mptcp_token_test_destroyed(struct kunit *test)
 
 	/* simulate race on removal */
 	refcount_set(&sk->sk_refcnt, 0);
-	KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(msk->token));
+	KUNIT_EXPECT_PTR_EQ(test, null_msk, mptcp_token_get_sock(&init_net, msk->token));
 
 	/* cleanup */
 	mptcp_token_destroy(msk);
-- 
GitLab


From 89d96f147d82c74f8ec1e2812695fbf89ec3e7ee Mon Sep 17 00:00:00 2001
From: Paul Fertser <fercerpav@gmail.com>
Date: Fri, 24 Sep 2021 12:30:10 +0300
Subject: [PATCH 0089/4878] hwmon: (tmp421) report /PVLD condition as fault

[ Upstream commit 540effa7f283d25bcc13c0940d808002fee340b8 ]

For both local and remote sensors all the supported ICs can report an
"undervoltage lockout" condition which means the conversion wasn't
properly performed due to insufficient power supply voltage and so the
measurement results can't be trusted.

Fixes: 9410700b881f ("hwmon: Add driver for Texas Instruments TMP421/422/423 sensor chips")
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Link: https://lore.kernel.org/r/20210924093011.26083-2-fercerpav@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/tmp421.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 8fd8c3a94dfe0..c9ef83627bb73 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -179,10 +179,10 @@ static int tmp421_read(struct device *dev, enum hwmon_sensor_types type,
 		return 0;
 	case hwmon_temp_fault:
 		/*
-		 * The OPEN bit signals a fault. This is bit 0 of the temperature
-		 * register (low byte).
+		 * Any of OPEN or /PVLD bits indicate a hardware mulfunction
+		 * and the conversion result may be incorrect
 		 */
-		*val = tmp421->temp[channel] & 0x01;
+		*val = !!(tmp421->temp[channel] & 0x03);
 		return 0;
 	default:
 		return -EOPNOTSUPP;
@@ -195,9 +195,6 @@ static umode_t tmp421_is_visible(const void *data, enum hwmon_sensor_types type,
 {
 	switch (attr) {
 	case hwmon_temp_fault:
-		if (channel == 0)
-			return 0;
-		return 0444;
 	case hwmon_temp_input:
 		return 0444;
 	default:
-- 
GitLab


From 5ee40530b0a6eaae24f77c63411bb1216caab0e2 Mon Sep 17 00:00:00 2001
From: Paul Fertser <fercerpav@gmail.com>
Date: Fri, 24 Sep 2021 12:30:11 +0300
Subject: [PATCH 0090/4878] hwmon: (tmp421) fix rounding for negative values

[ Upstream commit 724e8af85854c4d3401313b6dd7d79cf792d8990 ]

Old code produces -24999 for 0b1110011100000000 input in standard format due to
always rounding up rather than "away from zero".

Use the common macro for division, unify and simplify the conversion code along
the way.

Fixes: 9410700b881f ("hwmon: Add driver for Texas Instruments TMP421/422/423 sensor chips")
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Link: https://lore.kernel.org/r/20210924093011.26083-3-fercerpav@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/tmp421.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index c9ef83627bb73..b963a369c5ab3 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -100,23 +100,17 @@ struct tmp421_data {
 	s16 temp[4];
 };
 
-static int temp_from_s16(s16 reg)
+static int temp_from_raw(u16 reg, bool extended)
 {
 	/* Mask out status bits */
 	int temp = reg & ~0xf;
 
-	return (temp * 1000 + 128) / 256;
-}
-
-static int temp_from_u16(u16 reg)
-{
-	/* Mask out status bits */
-	int temp = reg & ~0xf;
-
-	/* Add offset for extended temperature range. */
-	temp -= 64 * 256;
+	if (extended)
+		temp = temp - 64 * 256;
+	else
+		temp = (s16)temp;
 
-	return (temp * 1000 + 128) / 256;
+	return DIV_ROUND_CLOSEST(temp * 1000, 256);
 }
 
 static int tmp421_update_device(struct tmp421_data *data)
@@ -172,10 +166,8 @@ static int tmp421_read(struct device *dev, enum hwmon_sensor_types type,
 
 	switch (attr) {
 	case hwmon_temp_input:
-		if (tmp421->config & TMP421_CONFIG_RANGE)
-			*val = temp_from_u16(tmp421->temp[channel]);
-		else
-			*val = temp_from_s16(tmp421->temp[channel]);
+		*val = temp_from_raw(tmp421->temp[channel],
+				     tmp421->config & TMP421_CONFIG_RANGE);
 		return 0;
 	case hwmon_temp_fault:
 		/*
-- 
GitLab


From b22c5e2c8e0380430a1c6d9ccbac8cb19d4ce986 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Thu, 23 Sep 2021 16:23:33 +0300
Subject: [PATCH 0091/4878] net: enetc: fix the incorrect clearing of IF_MODE
 bits

[ Upstream commit 325fd36ae76a6d089983b2d2eccb41237d35b221 ]

The enetc phylink .mac_config handler intends to clear the IFMODE field
(bits 1:0) of the PM0_IF_MODE register, but incorrectly clears all the
other fields instead.

For normal operation, the bug was inconsequential, due to the fact that
we write the PM0_IF_MODE register in two stages, first in
phylink .mac_config (which incorrectly cleared out a bunch of stuff),
then we update the speed and duplex to the correct values in
phylink .mac_link_up.

Judging by the code (not tested), it looks like maybe loopback mode was
broken, since this is one of the settings in PM0_IF_MODE which is
incorrectly cleared.

Fixes: c76a97218dcb ("net: enetc: force the RGMII speed and duplex instead of operating in inband mode")
Reported-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/enetc/enetc_pf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 68133563a40c1..716b396bf0947 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -504,8 +504,7 @@ static void enetc_mac_config(struct enetc_hw *hw, phy_interface_t phy_mode)
 
 	if (phy_interface_mode_is_rgmii(phy_mode)) {
 		val = enetc_port_rd(hw, ENETC_PM0_IF_MODE);
-		val &= ~ENETC_PM0_IFM_EN_AUTO;
-		val &= ENETC_PM0_IFM_IFMODE_MASK;
+		val &= ~(ENETC_PM0_IFM_EN_AUTO | ENETC_PM0_IFM_IFMODE_MASK);
 		val |= ENETC_PM0_IFM_IFMODE_GMII | ENETC_PM0_IFM_RG;
 		enetc_port_wr(hw, ENETC_PM0_IF_MODE, val);
 	}
-- 
GitLab


From 8de12ad9162ca2648c82d631c47c2f7de565aa73 Mon Sep 17 00:00:00 2001
From: Xiao Liang <shaw.leon@gmail.com>
Date: Thu, 23 Sep 2021 23:03:19 +0800
Subject: [PATCH 0092/4878] net: ipv4: Fix rtnexthop len when RTA_FLOW is
 present

[ Upstream commit 597aa16c782496bf74c5dc3b45ff472ade6cee64 ]

Multipath RTA_FLOW is embedded in nexthop. Dump it in fib_add_nexthop()
to get the length of rtnexthop correct.

Fixes: b0f60193632e ("ipv4: Refactor nexthop attributes in fib_dump_info")
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/ip_fib.h     |  2 +-
 include/net/nexthop.h    |  2 +-
 net/ipv4/fib_semantics.c | 16 +++++++++-------
 net/ipv6/route.c         |  5 +++--
 4 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 2ec062aaa9782..4d431d7b4415a 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -553,5 +553,5 @@ int ip_valid_fib_dump_req(struct net *net, const struct nlmsghdr *nlh,
 int fib_nexthop_info(struct sk_buff *skb, const struct fib_nh_common *nh,
 		     u8 rt_family, unsigned char *flags, bool skip_oif);
 int fib_add_nexthop(struct sk_buff *skb, const struct fib_nh_common *nh,
-		    int nh_weight, u8 rt_family);
+		    int nh_weight, u8 rt_family, u32 nh_tclassid);
 #endif  /* _NET_FIB_H */
diff --git a/include/net/nexthop.h b/include/net/nexthop.h
index 4c8c9fe9a3f0e..fd87d727aa217 100644
--- a/include/net/nexthop.h
+++ b/include/net/nexthop.h
@@ -211,7 +211,7 @@ int nexthop_mpath_fill_node(struct sk_buff *skb, struct nexthop *nh,
 		struct fib_nh_common *nhc = &nhi->fib_nhc;
 		int weight = nhg->nh_entries[i].weight;
 
-		if (fib_add_nexthop(skb, nhc, weight, rt_family) < 0)
+		if (fib_add_nexthop(skb, nhc, weight, rt_family, 0) < 0)
 			return -EMSGSIZE;
 	}
 
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 1f75dc686b6b6..642503e89924b 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1663,7 +1663,7 @@ EXPORT_SYMBOL_GPL(fib_nexthop_info);
 
 #if IS_ENABLED(CONFIG_IP_ROUTE_MULTIPATH) || IS_ENABLED(CONFIG_IPV6)
 int fib_add_nexthop(struct sk_buff *skb, const struct fib_nh_common *nhc,
-		    int nh_weight, u8 rt_family)
+		    int nh_weight, u8 rt_family, u32 nh_tclassid)
 {
 	const struct net_device *dev = nhc->nhc_dev;
 	struct rtnexthop *rtnh;
@@ -1681,6 +1681,9 @@ int fib_add_nexthop(struct sk_buff *skb, const struct fib_nh_common *nhc,
 
 	rtnh->rtnh_flags = flags;
 
+	if (nh_tclassid && nla_put_u32(skb, RTA_FLOW, nh_tclassid))
+		goto nla_put_failure;
+
 	/* length of rtnetlink header + attributes */
 	rtnh->rtnh_len = nlmsg_get_pos(skb) - (void *)rtnh;
 
@@ -1708,14 +1711,13 @@ static int fib_add_multipath(struct sk_buff *skb, struct fib_info *fi)
 	}
 
 	for_nexthops(fi) {
-		if (fib_add_nexthop(skb, &nh->nh_common, nh->fib_nh_weight,
-				    AF_INET) < 0)
-			goto nla_put_failure;
+		u32 nh_tclassid = 0;
 #ifdef CONFIG_IP_ROUTE_CLASSID
-		if (nh->nh_tclassid &&
-		    nla_put_u32(skb, RTA_FLOW, nh->nh_tclassid))
-			goto nla_put_failure;
+		nh_tclassid = nh->nh_tclassid;
 #endif
+		if (fib_add_nexthop(skb, &nh->nh_common, nh->fib_nh_weight,
+				    AF_INET, nh_tclassid) < 0)
+			goto nla_put_failure;
 	} endfor_nexthops(fi);
 
 mp_end:
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 168a7b4d957ae..a68a7d7c07280 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5566,14 +5566,15 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 			goto nla_put_failure;
 
 		if (fib_add_nexthop(skb, &rt->fib6_nh->nh_common,
-				    rt->fib6_nh->fib_nh_weight, AF_INET6) < 0)
+				    rt->fib6_nh->fib_nh_weight, AF_INET6,
+				    0) < 0)
 			goto nla_put_failure;
 
 		list_for_each_entry_safe(sibling, next_sibling,
 					 &rt->fib6_siblings, fib6_siblings) {
 			if (fib_add_nexthop(skb, &sibling->fib6_nh->nh_common,
 					    sibling->fib6_nh->fib_nh_weight,
-					    AF_INET6) < 0)
+					    AF_INET6, 0) < 0)
 				goto nla_put_failure;
 		}
 
-- 
GitLab


From 8321738c6e5ab8c85983c3ac5d7d36e0ccc451ae Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Fri, 24 Sep 2021 01:00:16 +0300
Subject: [PATCH 0093/4878] smsc95xx: fix stalled rx after link change

[ Upstream commit 5ab8a447bcfee1ded709e7ff5dc7608ca9f66ae2 ]

After commit 05b35e7eb9a1 ("smsc95xx: add phylib support"), link changes
are no longer propagated to usbnet. As a result, rx URB allocation won't
happen until there is a packet sent out first (this might never happen,
e.g. running just ssh server with a static IP). Fix by triggering usbnet
EVENT_LINK_CHANGE.

Fixes: 05b35e7eb9a1 ("smsc95xx: add phylib support")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/smsc95xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index ea0d5f04dc3a8..465e11dcdf129 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1178,7 +1178,10 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
 
 static void smsc95xx_handle_link_change(struct net_device *net)
 {
+	struct usbnet *dev = netdev_priv(net);
+
 	phy_print_status(net->phydev);
+	usbnet_defer_kevent(dev, EVENT_LINK_CHANGE);
 }
 
 static int smsc95xx_start_phy(struct usbnet *dev)
-- 
GitLab


From d35d95e8b9da638d27bce9552262e0c486138343 Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Tue, 21 Sep 2021 14:42:02 +0100
Subject: [PATCH 0094/4878] drm/i915/request: fix early tracepoints

[ Upstream commit c83ff0186401169eb27ce5057d820b7a863455c3 ]

Currently we blow up in trace_dma_fence_init, when calling into
get_driver_name or get_timeline_name, since both the engine and context
might be NULL(or contain some garbage address) in the case of newly
allocated slab objects via the request ctor. Note that we also use
SLAB_TYPESAFE_BY_RCU here, which allows requests to be immediately
freed, but delay freeing the underlying page by an RCU grace period.
With this scheme requests can be re-allocated, at the same time as they
are also being read by some lockless RCU lookup mechanism.

In the ctor case, which is only called for new slab objects(i.e allocate
new page and call the ctor for each object) it's safe to reset the
context/engine prior to calling into dma_fence_init, since we can be
certain that no one is doing an RCU lookup which might depend on peeking
at the engine/context, like in active_engine(), since the object can't
yet be externally visible.

In the recycled case(which might also be externally visible) the request
refcount always transitions from 0->1 after we set the context/engine
etc, which should ensure it's valid to dereference the engine for
example, when doing an RCU list-walk, so long as we can also increment
the refcount first. If the refcount is already zero, then the request is
considered complete/released.  If it's non-zero, then the request might
be in the process of being re-allocated, or potentially still in flight,
however after successfully incrementing the refcount, it's possible to
carefully inspect the request state, to determine if the request is
still what we were looking for. Note that all externally visible
requests returned to the cache must have zero refcount.

One possible fix then is to move dma_fence_init out from the request
ctor. Originally this was how it was done, but it was moved in:

commit 855e39e65cfc33a73724f1cc644ffc5754864a20
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Feb 3 09:41:48 2020 +0000

    drm/i915: Initialise basic fence before acquiring seqno

where it looks like intel_timeline_get_seqno() relied on some of the
rq->fence state, but that is no longer the case since:

commit 12ca695d2c1ed26b2dcbb528b42813bd0f216cfc
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Tue Mar 23 16:49:50 2021 +0100

    drm/i915: Do not share hwsp across contexts any more, v8.

intel_timeline_get_seqno() could also be cleaned up slightly by dropping
the request argument.

Moving dma_fence_init back out of the ctor, should ensure we have enough
of the request initialised in case of trace_dma_fence_init.
Functionally this should be the same, and is effectively what we were
already open coding before, except now we also assign the fence->lock
and fence->ops, but since these are invariant for recycled
requests(which might be externally visible), and will therefore already
hold the same value, it shouldn't matter.

An alternative fix, since we don't yet have a fully initialised request
when in the ctor, is just setting the context/engine as NULL, but this
does require adding some extra handling in get_driver_name etc.

v2(Daniel):
  - Try to make the commit message less confusing

Fixes: 855e39e65cfc ("drm/i915: Initialise basic fence before acquiring seqno")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Michael Mason <michael.w.mason@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210921134202.3803151-1-matthew.auld@intel.com
(cherry picked from commit be988eaee1cb208c4445db46bc3ceaf75f586f0b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/i915/i915_request.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index d8fef42ca38e1..896389f930294 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -776,8 +776,6 @@ static void __i915_request_ctor(void *arg)
 	i915_sw_fence_init(&rq->submit, submit_notify);
 	i915_sw_fence_init(&rq->semaphore, semaphore_notify);
 
-	dma_fence_init(&rq->fence, &i915_fence_ops, &rq->lock, 0, 0);
-
 	rq->capture_list = NULL;
 
 	init_llist_head(&rq->execute_cb);
@@ -840,17 +838,12 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
 	rq->ring = ce->ring;
 	rq->execution_mask = ce->engine->mask;
 
-	kref_init(&rq->fence.refcount);
-	rq->fence.flags = 0;
-	rq->fence.error = 0;
-	INIT_LIST_HEAD(&rq->fence.cb_list);
-
 	ret = intel_timeline_get_seqno(tl, rq, &seqno);
 	if (ret)
 		goto err_free;
 
-	rq->fence.context = tl->fence_context;
-	rq->fence.seqno = seqno;
+	dma_fence_init(&rq->fence, &i915_fence_ops, &rq->lock,
+		       tl->fence_context, seqno);
 
 	RCU_INIT_POINTER(rq->timeline, tl);
 	RCU_INIT_POINTER(rq->hwsp_cacheline, tl->hwsp_cacheline);
-- 
GitLab


From ee4d0495a65e366538063907c8b4459245620e0c Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 26 Sep 2021 19:41:24 +0200
Subject: [PATCH 0095/4878] dsa: mv88e6xxx: 6161: Use chip wide MAX MTU
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit fe23036192c95b66e60d019d2ec1814d0d561ffd ]

The datasheets suggests the 6161 uses a per port setting for jumbo
frames. Testing has however shown this is not correct, it uses the old
style chip wide MTU control. Change the ops in the 6161 structure to
reflect this.

Fixes: 1baf0fac10fb ("net: dsa: mv88e6xxx: Use chip-wide max frame size for MTU")
Reported by: 曹煜 <cao88yu@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 184cbc93328c2..caa3c4f304059 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3455,7 +3455,6 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
 	.port_set_frame_mode = mv88e6351_port_set_frame_mode,
 	.port_set_egress_floods = mv88e6352_port_set_egress_floods,
 	.port_set_ether_type = mv88e6351_port_set_ether_type,
-	.port_set_jumbo_size = mv88e6165_port_set_jumbo_size,
 	.port_egress_rate_limiting = mv88e6097_port_egress_rate_limiting,
 	.port_pause_limit = mv88e6097_port_pause_limit,
 	.port_disable_learn_limit = mv88e6xxx_port_disable_learn_limit,
@@ -3480,6 +3479,7 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
 	.avb_ops = &mv88e6165_avb_ops,
 	.ptp_ops = &mv88e6165_ptp_ops,
 	.phylink_validate = mv88e6185_phylink_validate,
+	.set_max_frame_size = mv88e6185_g1_set_max_frame_size,
 };
 
 static const struct mv88e6xxx_ops mv88e6165_ops = {
-- 
GitLab


From 7b771b12229e82dac66cf0090d0774475a3c662c Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 26 Sep 2021 19:41:25 +0200
Subject: [PATCH 0096/4878] dsa: mv88e6xxx: Fix MTU definition
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit b92ce2f54c0f0ff781e914ec189c25f7bf1b1ec2 ]

The MTU passed to the DSA driver is the payload size, typically 1500.
However, the switch uses the frame size when applying restrictions.
Adjust the MTU with the size of the Ethernet header and the frame
checksum. The VLAN header also needs to be included when the frame
size it per port, but not when it is global.

Fixes: 1baf0fac10fb ("net: dsa: mv88e6xxx: Use chip-wide max frame size for MTU")
Reported by: 曹煜 <cao88yu@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c    | 12 ++++++------
 drivers/net/dsa/mv88e6xxx/global1.c |  2 ++
 drivers/net/dsa/mv88e6xxx/port.c    |  2 ++
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index caa3c4f304059..50bbea220fbf5 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2613,8 +2613,8 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 	if (err)
 		return err;
 
-	/* Port Control 2: don't force a good FCS, set the maximum frame size to
-	 * 10240 bytes, disable 802.1q tags checking, don't discard tagged or
+	/* Port Control 2: don't force a good FCS, set the MTU size to
+	 * 10222 bytes, disable 802.1q tags checking, don't discard tagged or
 	 * untagged frames on this port, do a destination address lookup on all
 	 * received packets as usual, disable ARP mirroring and don't send a
 	 * copy of all transmitted/received frames on this port to the CPU.
@@ -2633,7 +2633,7 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 		return err;
 
 	if (chip->info->ops->port_set_jumbo_size) {
-		err = chip->info->ops->port_set_jumbo_size(chip, port, 10240);
+		err = chip->info->ops->port_set_jumbo_size(chip, port, 10218);
 		if (err)
 			return err;
 	}
@@ -2718,10 +2718,10 @@ static int mv88e6xxx_get_max_mtu(struct dsa_switch *ds, int port)
 	struct mv88e6xxx_chip *chip = ds->priv;
 
 	if (chip->info->ops->port_set_jumbo_size)
-		return 10240;
+		return 10240 - VLAN_ETH_HLEN - ETH_FCS_LEN;
 	else if (chip->info->ops->set_max_frame_size)
-		return 1632;
-	return 1522;
+		return 1632 - VLAN_ETH_HLEN - ETH_FCS_LEN;
+	return 1522 - VLAN_ETH_HLEN - ETH_FCS_LEN;
 }
 
 static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
diff --git a/drivers/net/dsa/mv88e6xxx/global1.c b/drivers/net/dsa/mv88e6xxx/global1.c
index 33d443a37efc4..9936ae69e5ee4 100644
--- a/drivers/net/dsa/mv88e6xxx/global1.c
+++ b/drivers/net/dsa/mv88e6xxx/global1.c
@@ -232,6 +232,8 @@ int mv88e6185_g1_set_max_frame_size(struct mv88e6xxx_chip *chip, int mtu)
 	u16 val;
 	int err;
 
+	mtu += ETH_HLEN + ETH_FCS_LEN;
+
 	err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_CTL1, &val);
 	if (err)
 		return err;
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index 8128dc607cf46..dfd9e8292e9a0 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -1082,6 +1082,8 @@ int mv88e6165_port_set_jumbo_size(struct mv88e6xxx_chip *chip, int port,
 	u16 reg;
 	int err;
 
+	size += VLAN_ETH_HLEN + ETH_FCS_LEN;
+
 	err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL2, &reg);
 	if (err)
 		return err;
-- 
GitLab


From c20a0ad7b6a054d77c3f20660befe77eaae3f24d Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 26 Sep 2021 19:41:26 +0200
Subject: [PATCH 0097/4878] dsa: mv88e6xxx: Include tagger overhead when
 setting MTU for DSA and CPU ports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit b9c587fed61cf88bd45822c3159644445f6d5aa6 ]

Same members of the Marvell Ethernet switches impose MTU restrictions
on ports used for connecting to the CPU or another switch for DSA. If
the MTU is set too low, tagged frames will be discarded. Ensure the
worst case tagger overhead is included in setting the MTU for DSA and
CPU ports.

Fixes: 1baf0fac10fb ("net: dsa: mv88e6xxx: Use chip-wide max frame size for MTU")
Reported by: 曹煜 <cao88yu@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 9 ++++++---
 drivers/net/dsa/mv88e6xxx/chip.h | 1 +
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 50bbea220fbf5..18388ea5ebd96 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2718,10 +2718,10 @@ static int mv88e6xxx_get_max_mtu(struct dsa_switch *ds, int port)
 	struct mv88e6xxx_chip *chip = ds->priv;
 
 	if (chip->info->ops->port_set_jumbo_size)
-		return 10240 - VLAN_ETH_HLEN - ETH_FCS_LEN;
+		return 10240 - VLAN_ETH_HLEN - EDSA_HLEN - ETH_FCS_LEN;
 	else if (chip->info->ops->set_max_frame_size)
-		return 1632 - VLAN_ETH_HLEN - ETH_FCS_LEN;
-	return 1522 - VLAN_ETH_HLEN - ETH_FCS_LEN;
+		return 1632 - VLAN_ETH_HLEN - EDSA_HLEN - ETH_FCS_LEN;
+	return 1522 - VLAN_ETH_HLEN - EDSA_HLEN - ETH_FCS_LEN;
 }
 
 static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
@@ -2729,6 +2729,9 @@ static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 	struct mv88e6xxx_chip *chip = ds->priv;
 	int ret = 0;
 
+	if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
+		new_mtu += EDSA_HLEN;
+
 	mv88e6xxx_reg_lock(chip);
 	if (chip->info->ops->port_set_jumbo_size)
 		ret = chip->info->ops->port_set_jumbo_size(chip, port, new_mtu);
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 81c244fc04195..51a7ff44478ec 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -18,6 +18,7 @@
 #include <linux/timecounter.h>
 #include <net/dsa.h>
 
+#define EDSA_HLEN		8
 #define MV88E6XXX_N_FID		4096
 
 /* PVT limits for 4-bit port and 5-bit switch */
-- 
GitLab


From f2edf80cdd0316e9e3452437e9797e948b8271bf Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Wed, 8 Sep 2021 10:52:36 -0700
Subject: [PATCH 0098/4878] e100: fix length calculation in e100_get_regs_len

[ Upstream commit 4329c8dc110b25d5f04ed20c6821bb60deff279f ]

commit abf9b902059f ("e100: cleanup unneeded math") tried to simplify
e100_get_regs_len and remove a double 'divide and then multiply'
calculation that the e100_reg_regs_len function did.

This change broke the size calculation entirely as it failed to account
for the fact that the numbered registers are actually 4 bytes wide and
not 1 byte. This resulted in a significant under allocation of the
register buffer used by e100_get_regs.

Fix this by properly multiplying the register count by u32 first before
adding the size of the dump buffer.

Fixes: abf9b902059f ("e100: cleanup unneeded math")
Reported-by: Felicitas Hetzelt <felicitashetzelt@gmail.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/e100.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index 609e47b8287d1..fee329d98621d 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -2435,7 +2435,11 @@ static void e100_get_drvinfo(struct net_device *netdev,
 static int e100_get_regs_len(struct net_device *netdev)
 {
 	struct nic *nic = netdev_priv(netdev);
-	return 1 + E100_PHY_REGS + sizeof(nic->mem->dump_buf);
+
+	/* We know the number of registers, and the size of the dump buffer.
+	 * Calculate the total size in bytes.
+	 */
+	return (1 + E100_PHY_REGS) * sizeof(u32) + sizeof(nic->mem->dump_buf);
 }
 
 static void e100_get_regs(struct net_device *netdev,
-- 
GitLab


From 7e3eda32b88140252f11c81b100bda4a43f4a727 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Wed, 8 Sep 2021 10:52:37 -0700
Subject: [PATCH 0099/4878] e100: fix buffer overrun in e100_get_regs

[ Upstream commit 51032e6f17ce990d06123ad7307f258c50d25aa7 ]

The e100_get_regs function is used to implement a simple register dump
for the e100 device. The data is broken into a couple of MAC control
registers, and then a series of PHY registers, followed by a memory dump
buffer.

The total length of the register dump is defined as (1 + E100_PHY_REGS)
* sizeof(u32) + sizeof(nic->mem->dump_buf).

The logic for filling in the PHY registers uses a convoluted inverted
count for loop which counts from E100_PHY_REGS (0x1C) down to 0, and
assigns the slots 1 + E100_PHY_REGS - i. The first loop iteration will
fill in [1] and the final loop iteration will fill in [1 + 0x1C]. This
is actually one more than the supposed number of PHY registers.

The memory dump buffer is then filled into the space at
[2 + E100_PHY_REGS] which will cause that memcpy to assign 4 bytes past
the total size.

The end result is that we overrun the total buffer size allocated by the
kernel, which could lead to a panic or other issues due to memory
corruption.

It is difficult to determine the actual total number of registers
here. The only 8255x datasheet I could find indicates there are 28 total
MDI registers. However, we're reading 29 here, and reading them in
reverse!

In addition, the ethtool e100 register dump interface appears to read
the first PHY register to determine if the device is in MDI or MDIx
mode. This doesn't appear to be documented anywhere within the 8255x
datasheet. I can only assume it must be in register 28 (the extra
register we're reading here).

Lets not change any of the intended meaning of what we copy here. Just
extend the space by 4 bytes to account for the extra register and
continue copying the data out in the same order.

Change the E100_PHY_REGS value to be the correct total (29) so that the
total register dump size is calculated properly. Fix the offset for
where we copy the dump buffer so that it doesn't overrun the total size.

Re-write the for loop to use counting up instead of the convoluted
down-counting. Correct the mdio_read offset to use the 0-based register
offsets, but maintain the bizarre reverse ordering so that we have the
ABI expected by applications like ethtool. This requires and additional
subtraction of 1. It seems a bit odd but it makes the flow of assignment
into the register buffer easier to follow.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Felicitas Hetzelt <felicitashetzelt@gmail.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/e100.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index fee329d98621d..ee86ea12fa379 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -2431,7 +2431,7 @@ static void e100_get_drvinfo(struct net_device *netdev,
 		sizeof(info->bus_info));
 }
 
-#define E100_PHY_REGS 0x1C
+#define E100_PHY_REGS 0x1D
 static int e100_get_regs_len(struct net_device *netdev)
 {
 	struct nic *nic = netdev_priv(netdev);
@@ -2453,14 +2453,18 @@ static void e100_get_regs(struct net_device *netdev,
 	buff[0] = ioread8(&nic->csr->scb.cmd_hi) << 24 |
 		ioread8(&nic->csr->scb.cmd_lo) << 16 |
 		ioread16(&nic->csr->scb.status);
-	for (i = E100_PHY_REGS; i >= 0; i--)
-		buff[1 + E100_PHY_REGS - i] =
-			mdio_read(netdev, nic->mii.phy_id, i);
+	for (i = 0; i < E100_PHY_REGS; i++)
+		/* Note that we read the registers in reverse order. This
+		 * ordering is the ABI apparently used by ethtool and other
+		 * applications.
+		 */
+		buff[1 + i] = mdio_read(netdev, nic->mii.phy_id,
+					E100_PHY_REGS - 1 - i);
 	memset(nic->mem->dump_buf, 0, sizeof(nic->mem->dump_buf));
 	e100_exec_cb(nic, NULL, e100_dump);
 	msleep(10);
-	memcpy(&buff[2 + E100_PHY_REGS], nic->mem->dump_buf,
-		sizeof(nic->mem->dump_buf));
+	memcpy(&buff[1 + E100_PHY_REGS], nic->mem->dump_buf,
+	       sizeof(nic->mem->dump_buf));
 }
 
 static void e100_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-- 
GitLab


From f908072391a653776d7ce9e23d63d3789a6c4b7d Mon Sep 17 00:00:00 2001
From: Yixing Liu <liuyixing1@huawei.com>
Date: Fri, 11 Dec 2020 09:37:36 +0800
Subject: [PATCH 0100/4878] RDMA/hns: Fix inaccurate prints

[ Upstream commit 61918e9b008492f48577692428aca3cebf56111a ]

Some %d in print format string should be %u, and some prints miss the
useful errno or are in nonstandard format. Just fix above issues.

Link: https://lore.kernel.org/r/1607650657-35992-11-git-send-email-liweihang@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_alloc.c |  4 +-
 drivers/infiniband/hw/hns/hns_roce_cq.c    | 35 +++++++------
 drivers/infiniband/hw/hns/hns_roce_hem.c   | 18 +++----
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 30 +++++------
 drivers/infiniband/hw/hns/hns_roce_mr.c    | 10 ++--
 drivers/infiniband/hw/hns/hns_roce_pd.c    |  2 +-
 drivers/infiniband/hw/hns/hns_roce_qp.c    | 61 +++++++++++++---------
 drivers/infiniband/hw/hns/hns_roce_srq.c   | 37 +++++++------
 8 files changed, 107 insertions(+), 90 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_alloc.c b/drivers/infiniband/hw/hns/hns_roce_alloc.c
index a6b23dec1adcf..5b2baf89d1109 100644
--- a/drivers/infiniband/hw/hns/hns_roce_alloc.c
+++ b/drivers/infiniband/hw/hns/hns_roce_alloc.c
@@ -240,7 +240,7 @@ int hns_roce_get_kmem_bufs(struct hns_roce_dev *hr_dev, dma_addr_t *bufs,
 	end = start + buf_cnt;
 	if (end > buf->npages) {
 		dev_err(hr_dev->dev,
-			"Failed to check kmem bufs, end %d + %d total %d!\n",
+			"failed to check kmem bufs, end %d + %d total %u!\n",
 			start, buf_cnt, buf->npages);
 		return -EINVAL;
 	}
@@ -262,7 +262,7 @@ int hns_roce_get_umem_bufs(struct hns_roce_dev *hr_dev, dma_addr_t *bufs,
 	u64 addr;
 
 	if (page_shift < HNS_HW_PAGE_SHIFT) {
-		dev_err(hr_dev->dev, "Failed to check umem page shift %d!\n",
+		dev_err(hr_dev->dev, "failed to check umem page shift %u!\n",
 			page_shift);
 		return -EINVAL;
 	}
diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c
index da346129f6e9e..8a6bded9c11cb 100644
--- a/drivers/infiniband/hw/hns/hns_roce_cq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_cq.c
@@ -50,29 +50,29 @@ static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
 
 	ret = hns_roce_mtr_find(hr_dev, &hr_cq->mtr, 0, mtts, ARRAY_SIZE(mtts),
 				&dma_handle);
-	if (ret < 1) {
-		ibdev_err(ibdev, "Failed to find CQ mtr\n");
+	if (!ret) {
+		ibdev_err(ibdev, "failed to find CQ mtr, ret = %d.\n", ret);
 		return -EINVAL;
 	}
 
 	cq_table = &hr_dev->cq_table;
 	ret = hns_roce_bitmap_alloc(&cq_table->bitmap, &hr_cq->cqn);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc CQ bitmap, err %d\n", ret);
+		ibdev_err(ibdev, "failed to alloc CQ bitmap, ret = %d.\n", ret);
 		return ret;
 	}
 
 	/* Get CQC memory HEM(Hardware Entry Memory) table */
 	ret = hns_roce_table_get(hr_dev, &cq_table->table, hr_cq->cqn);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to get CQ(0x%lx) context, err %d\n",
+		ibdev_err(ibdev, "failed to get CQ(0x%lx) context, ret = %d.\n",
 			  hr_cq->cqn, ret);
 		goto err_out;
 	}
 
 	ret = xa_err(xa_store(&cq_table->array, hr_cq->cqn, hr_cq, GFP_KERNEL));
 	if (ret) {
-		ibdev_err(ibdev, "Failed to xa_store CQ\n");
+		ibdev_err(ibdev, "failed to xa_store CQ, ret = %d.\n", ret);
 		goto err_put;
 	}
 
@@ -91,7 +91,7 @@ static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
 	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
 	if (ret) {
 		ibdev_err(ibdev,
-			  "Failed to send create cmd for CQ(0x%lx), err %d\n",
+			  "failed to send create cmd for CQ(0x%lx), ret = %d.\n",
 			  hr_cq->cqn, ret);
 		goto err_xa;
 	}
@@ -147,7 +147,7 @@ static int alloc_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
 {
 	struct ib_device *ibdev = &hr_dev->ib_dev;
 	struct hns_roce_buf_attr buf_attr = {};
-	int err;
+	int ret;
 
 	buf_attr.page_shift = hr_dev->caps.cqe_buf_pg_sz + HNS_HW_PAGE_SHIFT;
 	buf_attr.region[0].size = hr_cq->cq_depth * hr_cq->cqe_size;
@@ -155,13 +155,13 @@ static int alloc_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
 	buf_attr.region_count = 1;
 	buf_attr.fixed_page = true;
 
-	err = hns_roce_mtr_create(hr_dev, &hr_cq->mtr, &buf_attr,
+	ret = hns_roce_mtr_create(hr_dev, &hr_cq->mtr, &buf_attr,
 				  hr_dev->caps.cqe_ba_pg_sz + HNS_HW_PAGE_SHIFT,
 				  udata, addr);
-	if (err)
-		ibdev_err(ibdev, "Failed to alloc CQ mtr, err %d\n", err);
+	if (ret)
+		ibdev_err(ibdev, "failed to alloc CQ mtr, ret = %d.\n", ret);
 
-	return err;
+	return ret;
 }
 
 static void free_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
@@ -252,13 +252,13 @@ int hns_roce_create_cq(struct ib_cq *ib_cq, const struct ib_cq_init_attr *attr,
 	int ret;
 
 	if (cq_entries < 1 || cq_entries > hr_dev->caps.max_cqes) {
-		ibdev_err(ibdev, "Failed to check CQ count %d max=%d\n",
+		ibdev_err(ibdev, "failed to check CQ count %u, max = %u.\n",
 			  cq_entries, hr_dev->caps.max_cqes);
 		return -EINVAL;
 	}
 
 	if (vector >= hr_dev->caps.num_comp_vectors) {
-		ibdev_err(ibdev, "Failed to check CQ vector=%d max=%d\n",
+		ibdev_err(ibdev, "failed to check CQ vector = %d, max = %d.\n",
 			  vector, hr_dev->caps.num_comp_vectors);
 		return -EINVAL;
 	}
@@ -276,7 +276,7 @@ int hns_roce_create_cq(struct ib_cq *ib_cq, const struct ib_cq_init_attr *attr,
 		ret = ib_copy_from_udata(&ucmd, udata,
 					 min(udata->inlen, sizeof(ucmd)));
 		if (ret) {
-			ibdev_err(ibdev, "Failed to copy CQ udata, err %d\n",
+			ibdev_err(ibdev, "failed to copy CQ udata, ret = %d.\n",
 				  ret);
 			return ret;
 		}
@@ -286,19 +286,20 @@ int hns_roce_create_cq(struct ib_cq *ib_cq, const struct ib_cq_init_attr *attr,
 
 	ret = alloc_cq_buf(hr_dev, hr_cq, udata, ucmd.buf_addr);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc CQ buf, err %d\n", ret);
+		ibdev_err(ibdev, "failed to alloc CQ buf, ret = %d.\n", ret);
 		return ret;
 	}
 
 	ret = alloc_cq_db(hr_dev, hr_cq, udata, ucmd.db_addr, &resp);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc CQ db, err %d\n", ret);
+		ibdev_err(ibdev, "failed to alloc CQ db, ret = %d.\n", ret);
 		goto err_cq_buf;
 	}
 
 	ret = alloc_cqc(hr_dev, hr_cq);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc CQ context, err %d\n", ret);
+		ibdev_err(ibdev,
+			  "failed to alloc CQ context, ret = %d.\n", ret);
 		goto err_cq_db;
 	}
 
diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c
index 66f9f036ef946..c880a8be7e3cd 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hem.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hem.c
@@ -184,7 +184,7 @@ static int get_hem_table_config(struct hns_roce_dev *hr_dev,
 		mhop->hop_num = hr_dev->caps.srqc_hop_num;
 		break;
 	default:
-		dev_err(dev, "Table %d not support multi-hop addressing!\n",
+		dev_err(dev, "table %u not support multi-hop addressing!\n",
 			type);
 		return -EINVAL;
 	}
@@ -232,8 +232,8 @@ int hns_roce_calc_hem_mhop(struct hns_roce_dev *hr_dev,
 		mhop->l0_idx = table_idx;
 		break;
 	default:
-		dev_err(dev, "Table %d not support hop_num = %d!\n",
-			     table->type, mhop->hop_num);
+		dev_err(dev, "table %u not support hop_num = %u!\n",
+			table->type, mhop->hop_num);
 		return -EINVAL;
 	}
 	if (mhop->l0_idx >= mhop->ba_l0_num)
@@ -438,13 +438,13 @@ static int calc_hem_config(struct hns_roce_dev *hr_dev,
 		index->buf = l0_idx;
 		break;
 	default:
-		ibdev_err(ibdev, "Table %d not support mhop.hop_num = %d!\n",
+		ibdev_err(ibdev, "table %u not support mhop.hop_num = %u!\n",
 			  table->type, mhop->hop_num);
 		return -EINVAL;
 	}
 
 	if (unlikely(index->buf >= table->num_hem)) {
-		ibdev_err(ibdev, "Table %d exceed hem limt idx %llu,max %lu!\n",
+		ibdev_err(ibdev, "table %u exceed hem limt idx %llu, max %lu!\n",
 			  table->type, index->buf, table->num_hem);
 		return -EINVAL;
 	}
@@ -714,15 +714,15 @@ static void clear_mhop_hem(struct hns_roce_dev *hr_dev,
 			step_idx = hop_num;
 
 		if (hr_dev->hw->clear_hem(hr_dev, table, obj, step_idx))
-			ibdev_warn(ibdev, "Clear hop%d HEM failed.\n", hop_num);
+			ibdev_warn(ibdev, "failed to clear hop%u HEM.\n", hop_num);
 
 		if (index->inited & HEM_INDEX_L1)
 			if (hr_dev->hw->clear_hem(hr_dev, table, obj, 1))
-				ibdev_warn(ibdev, "Clear HEM step 1 failed.\n");
+				ibdev_warn(ibdev, "failed to clear HEM step 1.\n");
 
 		if (index->inited & HEM_INDEX_L0)
 			if (hr_dev->hw->clear_hem(hr_dev, table, obj, 0))
-				ibdev_warn(ibdev, "Clear HEM step 0 failed.\n");
+				ibdev_warn(ibdev, "failed to clear HEM step 0.\n");
 	}
 }
 
@@ -1234,7 +1234,7 @@ static int hem_list_alloc_mid_bt(struct hns_roce_dev *hr_dev,
 	}
 
 	if (offset < r->offset) {
-		dev_err(hr_dev->dev, "invalid offset %d,min %d!\n",
+		dev_err(hr_dev->dev, "invalid offset %d, min %u!\n",
 			offset, r->offset);
 		return -EINVAL;
 	}
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index ebcf26dec1e30..c29ba8ee51e29 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -361,7 +361,7 @@ static int check_send_valid(struct hns_roce_dev *hr_dev,
 	} else if (unlikely(hr_qp->state == IB_QPS_RESET ||
 		   hr_qp->state == IB_QPS_INIT ||
 		   hr_qp->state == IB_QPS_RTR)) {
-		ibdev_err(ibdev, "failed to post WQE, QP state %d!\n",
+		ibdev_err(ibdev, "failed to post WQE, QP state %hhu!\n",
 			  hr_qp->state);
 		return -EINVAL;
 	} else if (unlikely(hr_dev->state >= HNS_ROCE_DEVICE_STATE_RST_DOWN)) {
@@ -665,7 +665,7 @@ static int hns_roce_v2_post_send(struct ib_qp *ibqp,
 		wqe_idx = (qp->sq.head + nreq) & (qp->sq.wqe_cnt - 1);
 
 		if (unlikely(wr->num_sge > qp->sq.max_gs)) {
-			ibdev_err(ibdev, "num_sge=%d > qp->sq.max_gs=%d\n",
+			ibdev_err(ibdev, "num_sge = %d > qp->sq.max_gs = %u.\n",
 				  wr->num_sge, qp->sq.max_gs);
 			ret = -EINVAL;
 			*bad_wr = wr;
@@ -750,7 +750,7 @@ static int hns_roce_v2_post_recv(struct ib_qp *ibqp,
 		wqe_idx = (hr_qp->rq.head + nreq) & (hr_qp->rq.wqe_cnt - 1);
 
 		if (unlikely(wr->num_sge > hr_qp->rq.max_gs)) {
-			ibdev_err(ibdev, "rq:num_sge=%d >= qp->sq.max_gs=%d\n",
+			ibdev_err(ibdev, "num_sge = %d >= max_sge = %u.\n",
 				  wr->num_sge, hr_qp->rq.max_gs);
 			ret = -EINVAL;
 			*bad_wr = wr;
@@ -1920,8 +1920,8 @@ static void calc_pg_sz(int obj_num, int obj_size, int hop_num, int ctx_bt_num,
 		obj_per_chunk = ctx_bt_num * obj_per_chunk_default;
 		break;
 	default:
-		pr_err("Table %d not support hop_num = %d!\n", hem_type,
-			hop_num);
+		pr_err("table %u not support hop_num = %u!\n", hem_type,
+		       hop_num);
 		return;
 	}
 
@@ -3562,7 +3562,7 @@ static int get_op_for_set_hem(struct hns_roce_dev *hr_dev, u32 type,
 		break;
 	default:
 		dev_warn(hr_dev->dev,
-			 "Table %d not to be written by mailbox!\n", type);
+			 "table %u not to be written by mailbox!\n", type);
 		return -EINVAL;
 	}
 
@@ -3681,7 +3681,7 @@ static int hns_roce_v2_clear_hem(struct hns_roce_dev *hr_dev,
 		op = HNS_ROCE_CMD_DESTROY_SRQC_BT0;
 		break;
 	default:
-		dev_warn(dev, "Table %d not to be destroyed by mailbox!\n",
+		dev_warn(dev, "table %u not to be destroyed by mailbox!\n",
 			 table->type);
 		return 0;
 	}
@@ -4318,7 +4318,7 @@ static int modify_qp_rtr_to_rts(struct ib_qp *ibqp,
 
 	ret = config_qp_sq_buf(hr_dev, hr_qp, context, qpc_mask);
 	if (ret) {
-		ibdev_err(ibdev, "failed to config sq buf, ret %d\n", ret);
+		ibdev_err(ibdev, "failed to config sq buf, ret = %d.\n", ret);
 		return ret;
 	}
 
@@ -4804,7 +4804,7 @@ static int hns_roce_v2_modify_qp(struct ib_qp *ibqp,
 	/* SW pass context to HW */
 	ret = hns_roce_v2_qp_modify(hr_dev, context, qpc_mask, hr_qp);
 	if (ret) {
-		ibdev_err(ibdev, "failed to modify QP, ret = %d\n", ret);
+		ibdev_err(ibdev, "failed to modify QP, ret = %d.\n", ret);
 		goto out;
 	}
 
@@ -4897,7 +4897,7 @@ static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
 
 	ret = hns_roce_v2_query_qpc(hr_dev, hr_qp, &context);
 	if (ret) {
-		ibdev_err(ibdev, "failed to query QPC, ret = %d\n", ret);
+		ibdev_err(ibdev, "failed to query QPC, ret = %d.\n", ret);
 		ret = -EINVAL;
 		goto out;
 	}
@@ -5018,7 +5018,7 @@ static int hns_roce_v2_destroy_qp_common(struct hns_roce_dev *hr_dev,
 					    hr_qp->state, IB_QPS_RESET);
 		if (ret)
 			ibdev_err(ibdev,
-				  "failed to modify QP to RST, ret = %d\n",
+				  "failed to modify QP to RST, ret = %d.\n",
 				  ret);
 	}
 
@@ -5057,7 +5057,7 @@ static int hns_roce_v2_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata)
 	ret = hns_roce_v2_destroy_qp_common(hr_dev, hr_qp, udata);
 	if (ret)
 		ibdev_err(&hr_dev->ib_dev,
-			  "failed to destroy QP 0x%06lx, ret = %d\n",
+			  "failed to destroy QP, QPN = 0x%06lx, ret = %d.\n",
 			  hr_qp->qpn, ret);
 
 	hns_roce_qp_destroy(hr_dev, hr_qp, udata);
@@ -5080,7 +5080,7 @@ static int hns_roce_v2_qp_flow_control_init(struct hns_roce_dev *hr_dev,
 	hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_RESET_SCCC, false);
 	ret =  hns_roce_cmq_send(hr_dev, &desc, 1);
 	if (ret) {
-		ibdev_err(ibdev, "failed to reset SCC ctx, ret = %d\n", ret);
+		ibdev_err(ibdev, "failed to reset SCC ctx, ret = %d.\n", ret);
 		goto out;
 	}
 
@@ -5090,7 +5090,7 @@ static int hns_roce_v2_qp_flow_control_init(struct hns_roce_dev *hr_dev,
 	clr->qpn = cpu_to_le32(hr_qp->qpn);
 	ret =  hns_roce_cmq_send(hr_dev, &desc, 1);
 	if (ret) {
-		ibdev_err(ibdev, "failed to clear SCC ctx, ret = %d\n", ret);
+		ibdev_err(ibdev, "failed to clear SCC ctx, ret = %d.\n", ret);
 		goto out;
 	}
 
@@ -5339,7 +5339,7 @@ static int hns_roce_v2_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
 	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
 	if (ret)
 		ibdev_err(&hr_dev->ib_dev,
-			  "failed to process cmd when modifying CQ, ret = %d\n",
+			  "failed to process cmd when modifying CQ, ret = %d.\n",
 			  ret);
 
 	return ret;
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index 7f81a695e9af9..027ec8413ac25 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -185,14 +185,14 @@ static int hns_roce_mr_enable(struct hns_roce_dev *hr_dev,
 	else
 		ret = hr_dev->hw->frmr_write_mtpt(hr_dev, mailbox->buf, mr);
 	if (ret) {
-		dev_err(dev, "Write mtpt fail!\n");
+		dev_err(dev, "failed to write mtpt, ret = %d.\n", ret);
 		goto err_page;
 	}
 
 	ret = hns_roce_hw_create_mpt(hr_dev, mailbox,
 				     mtpt_idx & (hr_dev->caps.num_mtpts - 1));
 	if (ret) {
-		dev_err(dev, "CREATE_MPT failed (%d)\n", ret);
+		dev_err(dev, "failed to create mpt, ret = %d.\n", ret);
 		goto err_page;
 	}
 
@@ -495,7 +495,7 @@ int hns_roce_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 
 	ret = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, hns_roce_set_page);
 	if (ret < 1) {
-		ibdev_err(ibdev, "failed to store sg pages %d %d, cnt = %d.\n",
+		ibdev_err(ibdev, "failed to store sg pages %u %u, cnt = %d.\n",
 			  mr->npages, mr->pbl_mtr.hem_cfg.buf_pg_count, ret);
 		goto err_page_list;
 	}
@@ -862,7 +862,7 @@ int hns_roce_mtr_map(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
 		if (r->offset + r->count > page_cnt) {
 			err = -EINVAL;
 			ibdev_err(ibdev,
-				  "Failed to check mtr%d end %d + %d, max %d\n",
+				  "failed to check mtr%u end %u + %u, max %u.\n",
 				  i, r->offset, r->count, page_cnt);
 			return err;
 		}
@@ -870,7 +870,7 @@ int hns_roce_mtr_map(struct hns_roce_dev *hr_dev, struct hns_roce_mtr *mtr,
 		err = mtr_map_region(hr_dev, mtr, &pages[r->offset], r);
 		if (err) {
 			ibdev_err(ibdev,
-				  "Failed to map mtr%d offset %d, err %d\n",
+				  "failed to map mtr%u offset %u, ret = %d.\n",
 				  i, r->offset, err);
 			return err;
 		}
diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c
index f78fa1d3d8075..012a769d6a6a8 100644
--- a/drivers/infiniband/hw/hns/hns_roce_pd.c
+++ b/drivers/infiniband/hw/hns/hns_roce_pd.c
@@ -65,7 +65,7 @@ int hns_roce_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
 
 	ret = hns_roce_pd_alloc(to_hr_dev(ib_dev), &pd->pdn);
 	if (ret) {
-		ibdev_err(ib_dev, "failed to alloc pd, ret = %d\n", ret);
+		ibdev_err(ib_dev, "failed to alloc pd, ret = %d.\n", ret);
 		return ret;
 	}
 
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 7ce9ad8aee1ec..291e06d631505 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -452,12 +452,12 @@ static int check_sq_size_with_integrity(struct hns_roce_dev *hr_dev,
 	/* Sanity check SQ size before proceeding */
 	if (ucmd->log_sq_stride > max_sq_stride ||
 	    ucmd->log_sq_stride < HNS_ROCE_IB_MIN_SQ_STRIDE) {
-		ibdev_err(&hr_dev->ib_dev, "Failed to check SQ stride size\n");
+		ibdev_err(&hr_dev->ib_dev, "failed to check SQ stride size.\n");
 		return -EINVAL;
 	}
 
 	if (cap->max_send_sge > hr_dev->caps.max_sq_sg) {
-		ibdev_err(&hr_dev->ib_dev, "Failed to check SQ SGE size %d\n",
+		ibdev_err(&hr_dev->ib_dev, "failed to check SQ SGE size %u.\n",
 			  cap->max_send_sge);
 		return -EINVAL;
 	}
@@ -563,7 +563,7 @@ static int set_kernel_sq_size(struct hns_roce_dev *hr_dev,
 
 	cnt = roundup_pow_of_two(max(cap->max_send_wr, hr_dev->caps.min_wqes));
 	if (cnt > hr_dev->caps.max_wqes) {
-		ibdev_err(ibdev, "failed to check WQE num, WQE num = %d.\n",
+		ibdev_err(ibdev, "failed to check WQE num, WQE num = %u.\n",
 			  cnt);
 		return -EINVAL;
 	}
@@ -736,7 +736,8 @@ static int alloc_qp_db(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
 						   &hr_qp->sdb);
 			if (ret) {
 				ibdev_err(ibdev,
-					  "Failed to map user SQ doorbell\n");
+					  "failed to map user SQ doorbell, ret = %d.\n",
+					  ret);
 				goto err_out;
 			}
 			hr_qp->en_flags |= HNS_ROCE_QP_CAP_SQ_RECORD_DB;
@@ -747,7 +748,8 @@ static int alloc_qp_db(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
 						   &hr_qp->rdb);
 			if (ret) {
 				ibdev_err(ibdev,
-					  "Failed to map user RQ doorbell\n");
+					  "failed to map user RQ doorbell, ret = %d.\n",
+					  ret);
 				goto err_sdb;
 			}
 			hr_qp->en_flags |= HNS_ROCE_QP_CAP_RQ_RECORD_DB;
@@ -763,7 +765,8 @@ static int alloc_qp_db(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
 			ret = hns_roce_alloc_db(hr_dev, &hr_qp->rdb, 0);
 			if (ret) {
 				ibdev_err(ibdev,
-					  "Failed to alloc kernel RQ doorbell\n");
+					  "failed to alloc kernel RQ doorbell, ret = %d.\n",
+					  ret);
 				goto err_out;
 			}
 			*hr_qp->rdb.db_record = 0;
@@ -806,14 +809,14 @@ static int alloc_kernel_wrid(struct hns_roce_dev *hr_dev,
 
 	sq_wrid = kcalloc(hr_qp->sq.wqe_cnt, sizeof(u64), GFP_KERNEL);
 	if (ZERO_OR_NULL_PTR(sq_wrid)) {
-		ibdev_err(ibdev, "Failed to alloc SQ wrid\n");
+		ibdev_err(ibdev, "failed to alloc SQ wrid.\n");
 		return -ENOMEM;
 	}
 
 	if (hr_qp->rq.wqe_cnt) {
 		rq_wrid = kcalloc(hr_qp->rq.wqe_cnt, sizeof(u64), GFP_KERNEL);
 		if (ZERO_OR_NULL_PTR(rq_wrid)) {
-			ibdev_err(ibdev, "Failed to alloc RQ wrid\n");
+			ibdev_err(ibdev, "failed to alloc RQ wrid.\n");
 			ret = -ENOMEM;
 			goto err_sq;
 		}
@@ -873,7 +876,9 @@ static int set_qp_param(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
 
 		ret = set_user_sq_size(hr_dev, &init_attr->cap, hr_qp, ucmd);
 		if (ret)
-			ibdev_err(ibdev, "Failed to set user SQ size\n");
+			ibdev_err(ibdev,
+				  "failed to set user SQ size, ret = %d.\n",
+				  ret);
 	} else {
 		if (init_attr->create_flags &
 		    IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) {
@@ -888,7 +893,9 @@ static int set_qp_param(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp,
 
 		ret = set_kernel_sq_size(hr_dev, &init_attr->cap, hr_qp);
 		if (ret)
-			ibdev_err(ibdev, "Failed to set kernel SQ size\n");
+			ibdev_err(ibdev,
+				  "failed to set kernel SQ size, ret = %d.\n",
+				  ret);
 	}
 
 	return ret;
@@ -914,45 +921,48 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev,
 
 	ret = set_qp_param(hr_dev, hr_qp, init_attr, udata, &ucmd);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to set QP param\n");
+		ibdev_err(ibdev, "failed to set QP param, ret = %d.\n", ret);
 		return ret;
 	}
 
 	if (!udata) {
 		ret = alloc_kernel_wrid(hr_dev, hr_qp);
 		if (ret) {
-			ibdev_err(ibdev, "Failed to alloc wrid\n");
+			ibdev_err(ibdev, "failed to alloc wrid, ret = %d.\n",
+				  ret);
 			return ret;
 		}
 	}
 
 	ret = alloc_qp_db(hr_dev, hr_qp, init_attr, udata, &ucmd, &resp);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc QP doorbell\n");
+		ibdev_err(ibdev, "failed to alloc QP doorbell, ret = %d.\n",
+			  ret);
 		goto err_wrid;
 	}
 
 	ret = alloc_qp_buf(hr_dev, hr_qp, init_attr, udata, ucmd.buf_addr);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc QP buffer\n");
+		ibdev_err(ibdev, "failed to alloc QP buffer, ret = %d.\n", ret);
 		goto err_db;
 	}
 
 	ret = alloc_qpn(hr_dev, hr_qp);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc QPN\n");
+		ibdev_err(ibdev, "failed to alloc QPN, ret = %d.\n", ret);
 		goto err_buf;
 	}
 
 	ret = alloc_qpc(hr_dev, hr_qp);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc QP context\n");
+		ibdev_err(ibdev, "failed to alloc QP context, ret = %d.\n",
+			  ret);
 		goto err_qpn;
 	}
 
 	ret = hns_roce_qp_store(hr_dev, hr_qp, init_attr);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to store QP\n");
+		ibdev_err(ibdev, "failed to store QP, ret = %d.\n", ret);
 		goto err_qpc;
 	}
 
@@ -1098,9 +1108,8 @@ static int hns_roce_check_qp_attr(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 
 	if ((attr_mask & IB_QP_PORT) &&
 	    (attr->port_num == 0 || attr->port_num > hr_dev->caps.num_ports)) {
-		ibdev_err(&hr_dev->ib_dev,
-			"attr port_num invalid.attr->port_num=%d\n",
-			attr->port_num);
+		ibdev_err(&hr_dev->ib_dev, "invalid attr, port_num = %u.\n",
+			  attr->port_num);
 		return -EINVAL;
 	}
 
@@ -1108,8 +1117,8 @@ static int hns_roce_check_qp_attr(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 		p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port;
 		if (attr->pkey_index >= hr_dev->caps.pkey_table_len[p]) {
 			ibdev_err(&hr_dev->ib_dev,
-				"attr pkey_index invalid.attr->pkey_index=%d\n",
-				attr->pkey_index);
+				  "invalid attr, pkey_index = %u.\n",
+				  attr->pkey_index);
 			return -EINVAL;
 		}
 	}
@@ -1117,16 +1126,16 @@ static int hns_roce_check_qp_attr(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
 	    attr->max_rd_atomic > hr_dev->caps.max_qp_init_rdma) {
 		ibdev_err(&hr_dev->ib_dev,
-			"attr max_rd_atomic invalid.attr->max_rd_atomic=%d\n",
-			attr->max_rd_atomic);
+			  "invalid attr, max_rd_atomic = %u.\n",
+			  attr->max_rd_atomic);
 		return -EINVAL;
 	}
 
 	if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
 	    attr->max_dest_rd_atomic > hr_dev->caps.max_qp_dest_rdma) {
 		ibdev_err(&hr_dev->ib_dev,
-			"attr max_dest_rd_atomic invalid.attr->max_dest_rd_atomic=%d\n",
-			attr->max_dest_rd_atomic);
+			  "invalid attr, max_dest_rd_atomic = %u.\n",
+			  attr->max_dest_rd_atomic);
 		return -EINVAL;
 	}
 
diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c
index 75d74f4bb52c9..f27523e1a12d7 100644
--- a/drivers/infiniband/hw/hns/hns_roce_srq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_srq.c
@@ -93,7 +93,8 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq,
 	ret = hns_roce_mtr_find(hr_dev, &srq->buf_mtr, 0, mtts_wqe,
 				ARRAY_SIZE(mtts_wqe), &dma_handle_wqe);
 	if (ret < 1) {
-		ibdev_err(ibdev, "Failed to find mtr for SRQ WQE\n");
+		ibdev_err(ibdev, "failed to find mtr for SRQ WQE, ret = %d.\n",
+			  ret);
 		return -ENOBUFS;
 	}
 
@@ -101,32 +102,34 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq,
 	ret = hns_roce_mtr_find(hr_dev, &srq->idx_que.mtr, 0, mtts_idx,
 				ARRAY_SIZE(mtts_idx), &dma_handle_idx);
 	if (ret < 1) {
-		ibdev_err(ibdev, "Failed to find mtr for SRQ idx\n");
+		ibdev_err(ibdev, "failed to find mtr for SRQ idx, ret = %d.\n",
+			  ret);
 		return -ENOBUFS;
 	}
 
 	ret = hns_roce_bitmap_alloc(&srq_table->bitmap, &srq->srqn);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc SRQ number, err %d\n", ret);
+		ibdev_err(ibdev,
+			  "failed to alloc SRQ number, ret = %d.\n", ret);
 		return -ENOMEM;
 	}
 
 	ret = hns_roce_table_get(hr_dev, &srq_table->table, srq->srqn);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to get SRQC table, err %d\n", ret);
+		ibdev_err(ibdev, "failed to get SRQC table, ret = %d.\n", ret);
 		goto err_out;
 	}
 
 	ret = xa_err(xa_store(&srq_table->xa, srq->srqn, srq, GFP_KERNEL));
 	if (ret) {
-		ibdev_err(ibdev, "Failed to store SRQC, err %d\n", ret);
+		ibdev_err(ibdev, "failed to store SRQC, ret = %d.\n", ret);
 		goto err_put;
 	}
 
 	mailbox = hns_roce_alloc_cmd_mailbox(hr_dev);
 	if (IS_ERR_OR_NULL(mailbox)) {
 		ret = -ENOMEM;
-		ibdev_err(ibdev, "Failed to alloc mailbox for SRQC\n");
+		ibdev_err(ibdev, "failed to alloc mailbox for SRQC.\n");
 		goto err_xa;
 	}
 
@@ -137,7 +140,7 @@ static int alloc_srqc(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq,
 	ret = hns_roce_hw_create_srq(hr_dev, mailbox, srq->srqn);
 	hns_roce_free_cmd_mailbox(hr_dev, mailbox);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to config SRQC, err %d\n", ret);
+		ibdev_err(ibdev, "failed to config SRQC, ret = %d.\n", ret);
 		goto err_xa;
 	}
 
@@ -198,7 +201,8 @@ static int alloc_srq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq,
 				  hr_dev->caps.srqwqe_ba_pg_sz +
 				  HNS_HW_PAGE_SHIFT, udata, addr);
 	if (err)
-		ibdev_err(ibdev, "Failed to alloc SRQ buf mtr, err %d\n", err);
+		ibdev_err(ibdev,
+			  "failed to alloc SRQ buf mtr, ret = %d.\n", err);
 
 	return err;
 }
@@ -229,14 +233,15 @@ static int alloc_srq_idx(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq,
 				  hr_dev->caps.idx_ba_pg_sz + HNS_HW_PAGE_SHIFT,
 				  udata, addr);
 	if (err) {
-		ibdev_err(ibdev, "Failed to alloc SRQ idx mtr, err %d\n", err);
+		ibdev_err(ibdev,
+			  "failed to alloc SRQ idx mtr, ret = %d.\n", err);
 		return err;
 	}
 
 	if (!udata) {
 		idx_que->bitmap = bitmap_zalloc(srq->wqe_cnt, GFP_KERNEL);
 		if (!idx_que->bitmap) {
-			ibdev_err(ibdev, "Failed to alloc SRQ idx bitmap\n");
+			ibdev_err(ibdev, "failed to alloc SRQ idx bitmap.\n");
 			err = -ENOMEM;
 			goto err_idx_mtr;
 		}
@@ -303,7 +308,7 @@ int hns_roce_create_srq(struct ib_srq *ib_srq,
 		ret = ib_copy_from_udata(&ucmd, udata,
 					 min(udata->inlen, sizeof(ucmd)));
 		if (ret) {
-			ibdev_err(ibdev, "Failed to copy SRQ udata, err %d\n",
+			ibdev_err(ibdev, "failed to copy SRQ udata, ret = %d.\n",
 				  ret);
 			return ret;
 		}
@@ -311,20 +316,21 @@ int hns_roce_create_srq(struct ib_srq *ib_srq,
 
 	ret = alloc_srq_buf(hr_dev, srq, udata, ucmd.buf_addr);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc SRQ buffer, err %d\n", ret);
+		ibdev_err(ibdev,
+			  "failed to alloc SRQ buffer, ret = %d.\n", ret);
 		return ret;
 	}
 
 	ret = alloc_srq_idx(hr_dev, srq, udata, ucmd.que_addr);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc SRQ idx, err %d\n", ret);
+		ibdev_err(ibdev, "failed to alloc SRQ idx, ret = %d.\n", ret);
 		goto err_buf_alloc;
 	}
 
 	if (!udata) {
 		ret = alloc_srq_wrid(hr_dev, srq);
 		if (ret) {
-			ibdev_err(ibdev, "Failed to alloc SRQ wrid, err %d\n",
+			ibdev_err(ibdev, "failed to alloc SRQ wrid, ret = %d.\n",
 				  ret);
 			goto err_idx_alloc;
 		}
@@ -336,7 +342,8 @@ int hns_roce_create_srq(struct ib_srq *ib_srq,
 
 	ret = alloc_srqc(hr_dev, srq, to_hr_pd(ib_srq->pd)->pdn, cqn, 0, 0);
 	if (ret) {
-		ibdev_err(ibdev, "Failed to alloc SRQ context, err %d\n", ret);
+		ibdev_err(ibdev,
+			  "failed to alloc SRQ context, ret = %d.\n", ret);
 		goto err_wrid_alloc;
 	}
 
-- 
GitLab


From 59efda5073abb4fff2ce8c90ca9c2d25882e84a4 Mon Sep 17 00:00:00 2001
From: Lorenz Bauer <lmb@cloudflare.com>
Date: Wed, 22 Sep 2021 12:11:52 +0100
Subject: [PATCH 0101/4878] bpf: Exempt CAP_BPF from checks against
 bpf_jit_limit

[ Upstream commit 8a98ae12fbefdb583a7696de719a1d57e5e940a2 ]

When introducing CAP_BPF, bpf_jit_charge_modmem() was not changed to treat
programs with CAP_BPF as privileged for the purpose of JIT memory allocation.
This means that a program without CAP_BPF can block a program with CAP_BPF
from loading a program.

Fix this by checking bpf_capable() in bpf_jit_charge_modmem().

Fixes: 2c78ee898d8f ("bpf: Implement CAP_BPF")
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210922111153.19843-1-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index d12efb2550d35..2e4a658d65d6e 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -831,7 +831,7 @@ int bpf_jit_charge_modmem(u32 pages)
 {
 	if (atomic_long_add_return(pages, &bpf_jit_current) >
 	    (bpf_jit_limit >> PAGE_SHIFT)) {
-		if (!capable(CAP_SYS_ADMIN)) {
+		if (!bpf_capable()) {
 			atomic_long_sub(pages, &bpf_jit_current);
 			return -EPERM;
 		}
-- 
GitLab


From 4967ae9ab44b8a92b51859dfdf6b81794a61b9a6 Mon Sep 17 00:00:00 2001
From: Jiri Benc <jbenc@redhat.com>
Date: Mon, 27 Sep 2021 18:01:36 +0200
Subject: [PATCH 0102/4878] selftests, bpf: Fix makefile dependencies on libbpf

[ Upstream commit d888eaac4fb1df30320bb1305a8f78efe86524c6 ]

When building bpf selftest with make -j, I'm randomly getting build failures
such as this one:

  In file included from progs/bpf_flow.c:19:
  [...]/tools/testing/selftests/bpf/tools/include/bpf/bpf_helpers.h:11:10: fatal error: 'bpf_helper_defs.h' file not found
  #include "bpf_helper_defs.h"
           ^~~~~~~~~~~~~~~~~~~

The file that fails the build varies between runs but it's always in the
progs/ subdir.

The reason is a missing make dependency on libbpf for the .o files in
progs/. There was a dependency before commit 3ac2e20fba07e but that commit
removed it to prevent unneeded rebuilds. However, that only works if libbpf
has been built already; the 'wildcard' prerequisite does not trigger when
there's no bpf_helper_defs.h generated yet.

Keep the libbpf as an order-only prerequisite to satisfy both goals. It is
always built before the progs/ objects but it does not trigger unnecessary
rebuilds by itself.

Fixes: 3ac2e20fba07e ("selftests/bpf: BPF object files should depend only on libbpf headers")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/ee84ab66436fba05a197f952af23c98d90eb6243.1632758415.git.jbenc@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index b5322d60068c4..1d91555333608 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -326,7 +326,8 @@ $(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
 		     $(TRUNNER_BPF_PROGS_DIR)/%.c			\
 		     $(TRUNNER_BPF_PROGS_DIR)/*.h			\
 		     $$(INCLUDE_DIR)/vmlinux.h				\
-		     $(wildcard $(BPFDIR)/bpf_*.h) | $(TRUNNER_OUTPUT)
+		     $(wildcard $(BPFDIR)/bpf_*.h)			\
+		     | $(TRUNNER_OUTPUT) $$(BPFOBJ)
 	$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,			\
 					  $(TRUNNER_BPF_CFLAGS),	\
 					  $(TRUNNER_BPF_LDFLAGS))
-- 
GitLab


From f1dd6e10f077cef7f8a073fae759db8e41705ac8 Mon Sep 17 00:00:00 2001
From: Jiri Benc <jbenc@redhat.com>
Date: Thu, 23 Sep 2021 10:40:22 +0200
Subject: [PATCH 0103/4878] selftests, bpf: test_lwt_ip_encap: Really disable
 rp_filter

[ Upstream commit 79e2c306667542b8ee2d9a9d947eadc7039f0a3c ]

It's not enough to set net.ipv4.conf.all.rp_filter=0, that does not override
a greater rp_filter value on the individual interfaces. We also need to set
net.ipv4.conf.default.rp_filter=0 before creating the interfaces. That way,
they'll also get their own rp_filter value of zero.

Fixes: 0fde56e4385b0 ("selftests: bpf: add test_lwt_ip_encap selftest")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/b1cdd9d469f09ea6e01e9c89a6071c79b7380f89.1632386362.git.jbenc@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/test_lwt_ip_encap.sh | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_lwt_ip_encap.sh b/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
index 59ea56945e6cd..b497bb85b667f 100755
--- a/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
+++ b/tools/testing/selftests/bpf/test_lwt_ip_encap.sh
@@ -112,6 +112,14 @@ setup()
 	ip netns add "${NS2}"
 	ip netns add "${NS3}"
 
+	# rp_filter gets confused by what these tests are doing, so disable it
+	ip netns exec ${NS1} sysctl -wq net.ipv4.conf.all.rp_filter=0
+	ip netns exec ${NS2} sysctl -wq net.ipv4.conf.all.rp_filter=0
+	ip netns exec ${NS3} sysctl -wq net.ipv4.conf.all.rp_filter=0
+	ip netns exec ${NS1} sysctl -wq net.ipv4.conf.default.rp_filter=0
+	ip netns exec ${NS2} sysctl -wq net.ipv4.conf.default.rp_filter=0
+	ip netns exec ${NS3} sysctl -wq net.ipv4.conf.default.rp_filter=0
+
 	ip link add veth1 type veth peer name veth2
 	ip link add veth3 type veth peer name veth4
 	ip link add veth5 type veth peer name veth6
@@ -236,11 +244,6 @@ setup()
 	ip -netns ${NS1} -6 route add ${IPv6_GRE}/128 dev veth5 via ${IPv6_6} ${VRF}
 	ip -netns ${NS2} -6 route add ${IPv6_GRE}/128 dev veth7 via ${IPv6_8} ${VRF}
 
-	# rp_filter gets confused by what these tests are doing, so disable it
-	ip netns exec ${NS1} sysctl -wq net.ipv4.conf.all.rp_filter=0
-	ip netns exec ${NS2} sysctl -wq net.ipv4.conf.all.rp_filter=0
-	ip netns exec ${NS3} sysctl -wq net.ipv4.conf.all.rp_filter=0
-
 	TMPFILE=$(mktemp /tmp/test_lwt_ip_encap.XXXXXX)
 
 	sleep 1  # reduce flakiness
-- 
GitLab


From 1f2ca30fbde6387c2c68e7b8fc3bdda3158d2789 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 27 Sep 2021 16:13:02 +0200
Subject: [PATCH 0104/4878] net: ks8851: fix link error

[ Upstream commit 51bb08dd04a05035a64504faa47651d36b0f3125 ]

An object file cannot be built for both loadable module and built-in
use at the same time:

arm-linux-gnueabi-ld: drivers/net/ethernet/micrel/ks8851_common.o: in function `ks8851_probe_common':
ks8851_common.c:(.text+0xf80): undefined reference to `__this_module'

Change the ks8851_common code to be a standalone module instead,
and use Makefile logic to ensure this is built-in if at least one
of its two users is.

Fixes: 797047f875b5 ("net: ks8851: Implement Parallel bus operations")
Link: https://lore.kernel.org/netdev/20210125121937.3900988-1-arnd@kernel.org/
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/micrel/Makefile        | 6 ++----
 drivers/net/ethernet/micrel/ks8851_common.c | 8 ++++++++
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/micrel/Makefile b/drivers/net/ethernet/micrel/Makefile
index 5cc00d22c708c..6ecc4eb30e74b 100644
--- a/drivers/net/ethernet/micrel/Makefile
+++ b/drivers/net/ethernet/micrel/Makefile
@@ -4,8 +4,6 @@
 #
 
 obj-$(CONFIG_KS8842) += ks8842.o
-obj-$(CONFIG_KS8851) += ks8851.o
-ks8851-objs = ks8851_common.o ks8851_spi.o
-obj-$(CONFIG_KS8851_MLL) += ks8851_mll.o
-ks8851_mll-objs = ks8851_common.o ks8851_par.o
+obj-$(CONFIG_KS8851) += ks8851_common.o ks8851_spi.o
+obj-$(CONFIG_KS8851_MLL) += ks8851_common.o ks8851_par.o
 obj-$(CONFIG_KSZ884X_PCI) += ksz884x.o
diff --git a/drivers/net/ethernet/micrel/ks8851_common.c b/drivers/net/ethernet/micrel/ks8851_common.c
index d65872172229b..f74eae8eed02f 100644
--- a/drivers/net/ethernet/micrel/ks8851_common.c
+++ b/drivers/net/ethernet/micrel/ks8851_common.c
@@ -1031,6 +1031,7 @@ int ks8851_suspend(struct device *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ks8851_suspend);
 
 int ks8851_resume(struct device *dev)
 {
@@ -1044,6 +1045,7 @@ int ks8851_resume(struct device *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ks8851_resume);
 #endif
 
 int ks8851_probe_common(struct net_device *netdev, struct device *dev,
@@ -1175,6 +1177,7 @@ err_reg:
 err_reg_io:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ks8851_probe_common);
 
 int ks8851_remove_common(struct device *dev)
 {
@@ -1191,3 +1194,8 @@ int ks8851_remove_common(struct device *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ks8851_remove_common);
+
+MODULE_DESCRIPTION("KS8851 Network driver");
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_LICENSE("GPL");
-- 
GitLab


From 0306a2c7df7ebe7c740ecb6c845668401ed3cc8e Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 28 Sep 2021 06:33:15 -0600
Subject: [PATCH 0105/4878] Revert "block, bfq: honor already-setup queue
 merges"

[ Upstream commit ebc69e897e17373fbe1daaff1debaa77583a5284 ]

This reverts commit 2d52c58b9c9bdae0ca3df6a1eab5745ab3f7d80b.

We have had several folks complain that this causes hangs for them, which
is especially problematic as the commit has also hit stable already.

As no resolution seems to be forthcoming right now, revert the patch.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=214503
Fixes: 2d52c58b9c9b ("block, bfq: honor already-setup queue merges")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/bfq-iosched.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 65c200e0ecb59..b8c2ddc01aec3 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -2526,15 +2526,6 @@ bfq_setup_merge(struct bfq_queue *bfqq, struct bfq_queue *new_bfqq)
 	 * are likely to increase the throughput.
 	 */
 	bfqq->new_bfqq = new_bfqq;
-	/*
-	 * The above assignment schedules the following redirections:
-	 * each time some I/O for bfqq arrives, the process that
-	 * generated that I/O is disassociated from bfqq and
-	 * associated with new_bfqq. Here we increases new_bfqq->ref
-	 * in advance, adding the number of processes that are
-	 * expected to be associated with new_bfqq as they happen to
-	 * issue I/O.
-	 */
 	new_bfqq->ref += process_refs;
 	return new_bfqq;
 }
@@ -2594,10 +2585,6 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 {
 	struct bfq_queue *in_service_bfqq, *new_bfqq;
 
-	/* if a merge has already been setup, then proceed with that first */
-	if (bfqq->new_bfqq)
-		return bfqq->new_bfqq;
-
 	/*
 	 * Do not perform queue merging if the device is non
 	 * rotational and performs internal queueing. In fact, such a
@@ -2652,6 +2639,9 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 	if (bfq_too_late_for_merging(bfqq))
 		return NULL;
 
+	if (bfqq->new_bfqq)
+		return bfqq->new_bfqq;
+
 	if (!io_struct || unlikely(bfqq == &bfqd->oom_bfqq))
 		return NULL;
 
-- 
GitLab


From 16138cf938dc1194ba1dddcd7028080f35322ddc Mon Sep 17 00:00:00 2001
From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Date: Mon, 27 Sep 2021 21:44:08 +0530
Subject: [PATCH 0106/4878] scsi: csiostor: Add module softdep on cxgb4

[ Upstream commit 79a7482249a7353bc86aff8127954d5febf02472 ]

Both cxgb4 and csiostor drivers run on their own independent Physical
Function. But when cxgb4 and csiostor are both being loaded in parallel via
modprobe, there is a race when firmware upgrade is attempted by both the
drivers.

When the cxgb4 driver initiates the firmware upgrade, it halts the firmware
and the chip until upgrade is complete. When the csiostor driver is coming
up in parallel, the firmware mailbox communication fails with timeouts and
the csiostor driver probe fails.

Add a module soft dependency on cxgb4 driver to ensure loading csiostor
triggers cxgb4 to load first when available to avoid the firmware upgrade
race.

Link: https://lore.kernel.org/r/1632759248-15382-1-git-send-email-rahul.lakkireddy@chelsio.com
Fixes: a3667aaed569 ("[SCSI] csiostor: Chelsio FCoE offload driver")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/csiostor/csio_init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index 390b07bf92b97..ccbded3353bd0 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -1254,3 +1254,4 @@ MODULE_DEVICE_TABLE(pci, csio_pci_tbl);
 MODULE_VERSION(CSIO_DRV_VERSION);
 MODULE_FIRMWARE(FW_FNAME_T5);
 MODULE_FIRMWARE(FW_FNAME_T6);
+MODULE_SOFTDEP("pre: cxgb4");
-- 
GitLab


From 20f6c4a31a525edd9ea6243712b868ba0e4e331e Mon Sep 17 00:00:00 2001
From: Feng Zhou <zhoufeng.zf@bytedance.com>
Date: Tue, 28 Sep 2021 15:23:59 -0700
Subject: [PATCH 0107/4878] ixgbe: Fix NULL pointer dereference in
 ixgbe_xdp_setup

[ Upstream commit 513e605d7a9ce136886cb42ebb2c40e9a6eb6333 ]

The ixgbe driver currently generates a NULL pointer dereference with
some machine (online cpus < 63). This is due to the fact that the
maximum value of num_xdp_queues is nr_cpu_ids. Code is in
"ixgbe_set_rss_queues"".

Here's how the problem repeats itself:
Some machine (online cpus < 63), And user set num_queues to 63 through
ethtool. Code is in the "ixgbe_set_channels",
	adapter->ring_feature[RING_F_FDIR].limit = count;

It becomes 63.

When user use xdp, "ixgbe_set_rss_queues" will set queues num.
	adapter->num_rx_queues = rss_i;
	adapter->num_tx_queues = rss_i;
	adapter->num_xdp_queues = ixgbe_xdp_queues(adapter);

And rss_i's value is from
	f = &adapter->ring_feature[RING_F_FDIR];
	rss_i = f->indices = f->limit;

So "num_rx_queues" > "num_xdp_queues", when run to "ixgbe_xdp_setup",
	for (i = 0; i < adapter->num_rx_queues; i++)
		if (adapter->xdp_ring[i]->xsk_umem)

It leads to panic.

Call trace:
[exception RIP: ixgbe_xdp+368]
RIP: ffffffffc02a76a0  RSP: ffff9fe16202f8d0  RFLAGS: 00010297
RAX: 0000000000000000  RBX: 0000000000000020  RCX: 0000000000000000
RDX: 0000000000000000  RSI: 000000000000001c  RDI: ffffffffa94ead90
RBP: ffff92f8f24c0c18   R8: 0000000000000000   R9: 0000000000000000
R10: ffff9fe16202f830  R11: 0000000000000000  R12: ffff92f8f24c0000
R13: ffff9fe16202fc01  R14: 000000000000000a  R15: ffffffffc02a7530
ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 7 [ffff9fe16202f8f0] dev_xdp_install at ffffffffa89fbbcc
 8 [ffff9fe16202f920] dev_change_xdp_fd at ffffffffa8a08808
 9 [ffff9fe16202f960] do_setlink at ffffffffa8a20235
10 [ffff9fe16202fa88] rtnl_setlink at ffffffffa8a20384
11 [ffff9fe16202fc78] rtnetlink_rcv_msg at ffffffffa8a1a8dd
12 [ffff9fe16202fcf0] netlink_rcv_skb at ffffffffa8a717eb
13 [ffff9fe16202fd40] netlink_unicast at ffffffffa8a70f88
14 [ffff9fe16202fd80] netlink_sendmsg at ffffffffa8a71319
15 [ffff9fe16202fdf0] sock_sendmsg at ffffffffa89df290
16 [ffff9fe16202fe08] __sys_sendto at ffffffffa89e19c8
17 [ffff9fe16202ff30] __x64_sys_sendto at ffffffffa89e1a64
18 [ffff9fe16202ff38] do_syscall_64 at ffffffffa84042b9
19 [ffff9fe16202ff50] entry_SYSCALL_64_after_hwframe at ffffffffa8c0008c

So I fix ixgbe_max_channels so that it will not allow a setting of queues
to be higher than the num_online_cpus(). And when run to ixgbe_xdp_setup,
take the smaller value of num_rx_queues and num_xdp_queues.

Fixes: 4a9b32f30f80 ("ixgbe: fix potential RX buffer starvation for AF_XDP")
Signed-off-by: Feng Zhou <zhoufeng.zf@bytedance.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 2 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c    | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index a280aa34ca1df..55983904b6df1 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3216,7 +3216,7 @@ static unsigned int ixgbe_max_channels(struct ixgbe_adapter *adapter)
 		max_combined = ixgbe_max_rss_indices(adapter);
 	}
 
-	return max_combined;
+	return min_t(int, max_combined, num_online_cpus());
 }
 
 static void ixgbe_get_channels(struct net_device *dev,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 37439b76fcb5e..ffe322136c584 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -10123,6 +10123,7 @@ static int ixgbe_xdp_setup(struct net_device *dev, struct bpf_prog *prog)
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
 	struct bpf_prog *old_prog;
 	bool need_reset;
+	int num_queues;
 
 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
 		return -EINVAL;
@@ -10172,11 +10173,14 @@ static int ixgbe_xdp_setup(struct net_device *dev, struct bpf_prog *prog)
 	/* Kick start the NAPI context if there is an AF_XDP socket open
 	 * on that queue id. This so that receiving will start.
 	 */
-	if (need_reset && prog)
-		for (i = 0; i < adapter->num_rx_queues; i++)
+	if (need_reset && prog) {
+		num_queues = min_t(int, adapter->num_rx_queues,
+				   adapter->num_xdp_queues);
+		for (i = 0; i < num_queues; i++)
 			if (adapter->xdp_ring[i]->xsk_pool)
 				(void)ixgbe_xsk_wakeup(adapter->netdev, i,
 						       XDP_WAKEUP_RX);
+	}
 
 	return 0;
 }
-- 
GitLab


From f8ba689cb69523144d10606096ef686002dd7285 Mon Sep 17 00:00:00 2001
From: Jian Shen <shenjian15@huawei.com>
Date: Wed, 29 Sep 2021 17:35:49 +0800
Subject: [PATCH 0108/4878] net: hns3: do not allow call hns3_nic_net_open
 repeatedly

[ Upstream commit 5b09e88e1bf7fe86540fab4b5f3eece8abead39e ]

hns3_nic_net_open() is not allowed to called repeatly, but there
is no checking for this. When doing device reset and setup tc
concurrently, there is a small oppotunity to call hns3_nic_net_open
repeatedly, and cause kernel bug by calling napi_enable twice.

The calltrace information is like below:
[ 3078.222780] ------------[ cut here ]------------
[ 3078.230255] kernel BUG at net/core/dev.c:6991!
[ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)
[ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G           O      5.14.0-rc4+ #1
[ 3078.269102] Hardware name:  , BIOS KpxxxFPGA 1P B600 V181 08/12/2021
[ 3078.276801] Workqueue: hclge hclge_service_task [hclge]
[ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--)
[ 3078.296168] pc : napi_enable+0x80/0x84
tc qdisc sho[w  3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3]

[ 3078.314771] sp : ffff8000108abb20
[ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300
[ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000
[ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880
[ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000
[ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930
[ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4
[ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8
[ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344
[ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938
[ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0
[ 3078.414657] Call trace:
[ 3078.418517]  napi_enable+0x80/0x84
[ 3078.424626]  hns3_reset_notify_up_enet+0x78/0xd0 [hns3]
[ 3078.433469]  hns3_reset_notify+0x64/0x80 [hns3]
[ 3078.441430]  hclge_notify_client+0x68/0xb0 [hclge]
[ 3078.450511]  hclge_reset_rebuild+0x524/0x884 [hclge]
[ 3078.458879]  hclge_reset_service_task+0x3c4/0x680 [hclge]
[ 3078.467470]  hclge_service_task+0xb0/0xb54 [hclge]
[ 3078.475675]  process_one_work+0x1dc/0x48c
[ 3078.481888]  worker_thread+0x15c/0x464
[ 3078.487104]  kthread+0x160/0x170
[ 3078.492479]  ret_from_fork+0x10/0x18
[ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000)
[ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]---

Once hns3_nic_net_open() is excute success, the flag
HNS3_NIC_STATE_DOWN will be cleared. So add checking for this
flag, directly return when HNS3_NIC_STATE_DOWN is no set.

Fixes: e888402789b9 ("net: hns3: call hns3_nic_net_open() while doing HNAE3_UP_CLIENT")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 936b9cfe1a62f..4777db2623cf4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -444,6 +444,11 @@ static int hns3_nic_net_open(struct net_device *netdev)
 	if (hns3_nic_resetting(netdev))
 		return -EBUSY;
 
+	if (!test_bit(HNS3_NIC_STATE_DOWN, &priv->state)) {
+		netdev_warn(netdev, "net open repeatedly!\n");
+		return 0;
+	}
+
 	netif_carrier_off(netdev);
 
 	ret = hns3_nic_set_real_num_queue(netdev);
-- 
GitLab


From 8d3d27664ef42775c14118c0127d015c687c744f Mon Sep 17 00:00:00 2001
From: Yonglong Liu <liuyonglong@huawei.com>
Date: Sat, 28 Nov 2020 11:51:50 +0800
Subject: [PATCH 0109/4878] net: hns3: keep MAC pause mode when multiple TCs
 are enabled

[ Upstream commit d78e5b6a6764cb6e83668806b63d74566db36399 ]

Bellow HNAE3_DEVICE_VERSION_V3, MAC pause mode just support one
TC, when enabled multiple TCs, force enable PFC mode.

HNAE3_DEVICE_VERSION_V3 can support MAC pause mode on multiple
TCs, so when enable multiple TCs, just keep MAC pause mode,
and enable PFC mode just according to the user settings.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index e8495f58a1a8e..42e82bf69b8e0 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -682,7 +682,7 @@ static void hclge_tm_pg_info_init(struct hclge_dev *hdev)
 	}
 }
 
-static void hclge_pfc_info_init(struct hclge_dev *hdev)
+static void hclge_update_fc_mode_by_dcb_flag(struct hclge_dev *hdev)
 {
 	if (!(hdev->flag & HCLGE_FLAG_DCB_ENABLE)) {
 		if (hdev->fc_mode_last_time == HCLGE_FC_PFC)
@@ -700,6 +700,27 @@ static void hclge_pfc_info_init(struct hclge_dev *hdev)
 	}
 }
 
+static void hclge_update_fc_mode(struct hclge_dev *hdev)
+{
+	if (!hdev->tm_info.pfc_en) {
+		hdev->tm_info.fc_mode = hdev->fc_mode_last_time;
+		return;
+	}
+
+	if (hdev->tm_info.fc_mode != HCLGE_FC_PFC) {
+		hdev->fc_mode_last_time = hdev->tm_info.fc_mode;
+		hdev->tm_info.fc_mode = HCLGE_FC_PFC;
+	}
+}
+
+static void hclge_pfc_info_init(struct hclge_dev *hdev)
+{
+	if (hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3)
+		hclge_update_fc_mode(hdev);
+	else
+		hclge_update_fc_mode_by_dcb_flag(hdev);
+}
+
 static void hclge_tm_schd_info_init(struct hclge_dev *hdev)
 {
 	hclge_tm_pg_info_init(hdev);
-- 
GitLab


From 64dae9551f8af31033836a043f2273fee2a74c55 Mon Sep 17 00:00:00 2001
From: Jian Shen <shenjian15@huawei.com>
Date: Wed, 29 Sep 2021 17:35:52 +0800
Subject: [PATCH 0110/4878] net: hns3: fix mixed flag HCLGE_FLAG_MQPRIO_ENABLE
 and HCLGE_FLAG_DCB_ENABLE

[ Upstream commit 0472e95ffeac8e61259eec17ab61608c6b35599d ]

HCLGE_FLAG_MQPRIO_ENABLE is supposed to set when enable
multiple TCs with tc mqprio, and HCLGE_FLAG_DCB_ENABLE is
supposed to set when enable multiple TCs with ets. But
the driver mixed the flags when updating the tm configuration.

Furtherly, PFC should be available when HCLGE_FLAG_MQPRIO_ENABLE
too, so remove the unnecessary limitation.

Fixes: 5a5c90917467 ("net: hns3: add support for tc mqprio offload")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../hisilicon/hns3/hns3pf/hclge_dcb.c         |  7 +++--
 .../ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 31 +++----------------
 2 files changed, 10 insertions(+), 28 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index a93c7eb4e7cbb..28a90ead4795d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -248,6 +248,10 @@ static int hclge_ieee_setets(struct hnae3_handle *h, struct ieee_ets *ets)
 	}
 
 	hclge_tm_schd_info_update(hdev, num_tc);
+	if (num_tc > 1)
+		hdev->flag |= HCLGE_FLAG_DCB_ENABLE;
+	else
+		hdev->flag &= ~HCLGE_FLAG_DCB_ENABLE;
 
 	ret = hclge_ieee_ets_to_tm_info(hdev, ets);
 	if (ret)
@@ -313,8 +317,7 @@ static int hclge_ieee_setpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
 	u8 i, j, pfc_map, *prio_tc;
 	int ret;
 
-	if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
-	    hdev->flag & HCLGE_FLAG_MQPRIO_ENABLE)
+	if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
 		return -EINVAL;
 
 	if (pfc->pfc_en == hdev->tm_info.pfc_en)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 42e82bf69b8e0..69d081515c60a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -646,14 +646,6 @@ static void hclge_tm_tc_info_init(struct hclge_dev *hdev)
 	for (i = 0; i < HNAE3_MAX_USER_PRIO; i++)
 		hdev->tm_info.prio_tc[i] =
 			(i >= hdev->tm_info.num_tc) ? 0 : i;
-
-	/* DCB is enabled if we have more than 1 TC or pfc_en is
-	 * non-zero.
-	 */
-	if (hdev->tm_info.num_tc > 1 || hdev->tm_info.pfc_en)
-		hdev->flag |= HCLGE_FLAG_DCB_ENABLE;
-	else
-		hdev->flag &= ~HCLGE_FLAG_DCB_ENABLE;
 }
 
 static void hclge_tm_pg_info_init(struct hclge_dev *hdev)
@@ -684,10 +676,10 @@ static void hclge_tm_pg_info_init(struct hclge_dev *hdev)
 
 static void hclge_update_fc_mode_by_dcb_flag(struct hclge_dev *hdev)
 {
-	if (!(hdev->flag & HCLGE_FLAG_DCB_ENABLE)) {
+	if (hdev->tm_info.num_tc == 1 && !hdev->tm_info.pfc_en) {
 		if (hdev->fc_mode_last_time == HCLGE_FC_PFC)
 			dev_warn(&hdev->pdev->dev,
-				 "DCB is disable, but last mode is FC_PFC\n");
+				 "Only 1 tc used, but last mode is FC_PFC\n");
 
 		hdev->tm_info.fc_mode = hdev->fc_mode_last_time;
 	} else if (hdev->tm_info.fc_mode != HCLGE_FC_PFC) {
@@ -713,7 +705,7 @@ static void hclge_update_fc_mode(struct hclge_dev *hdev)
 	}
 }
 
-static void hclge_pfc_info_init(struct hclge_dev *hdev)
+void hclge_tm_pfc_info_update(struct hclge_dev *hdev)
 {
 	if (hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3)
 		hclge_update_fc_mode(hdev);
@@ -729,7 +721,7 @@ static void hclge_tm_schd_info_init(struct hclge_dev *hdev)
 
 	hclge_tm_vport_info_update(hdev);
 
-	hclge_pfc_info_init(hdev);
+	hclge_tm_pfc_info_update(hdev);
 }
 
 static int hclge_tm_pg_to_pri_map(struct hclge_dev *hdev)
@@ -1465,19 +1457,6 @@ void hclge_tm_schd_info_update(struct hclge_dev *hdev, u8 num_tc)
 	hclge_tm_schd_info_init(hdev);
 }
 
-void hclge_tm_pfc_info_update(struct hclge_dev *hdev)
-{
-	/* DCB is enabled if we have more than 1 TC or pfc_en is
-	 * non-zero.
-	 */
-	if (hdev->tm_info.num_tc > 1 || hdev->tm_info.pfc_en)
-		hdev->flag |= HCLGE_FLAG_DCB_ENABLE;
-	else
-		hdev->flag &= ~HCLGE_FLAG_DCB_ENABLE;
-
-	hclge_pfc_info_init(hdev);
-}
-
 int hclge_tm_init_hw(struct hclge_dev *hdev, bool init)
 {
 	int ret;
@@ -1523,7 +1502,7 @@ int hclge_tm_vport_map_update(struct hclge_dev *hdev)
 	if (ret)
 		return ret;
 
-	if (!(hdev->flag & HCLGE_FLAG_DCB_ENABLE))
+	if (hdev->tm_info.num_tc == 1 && !hdev->tm_info.pfc_en)
 		return 0;
 
 	return hclge_tm_bp_setup(hdev);
-- 
GitLab


From d4a14faf7919b331d95d87d7d84e36774f9408c4 Mon Sep 17 00:00:00 2001
From: Jian Shen <shenjian15@huawei.com>
Date: Wed, 29 Sep 2021 17:35:53 +0800
Subject: [PATCH 0111/4878] net: hns3: fix show wrong state when add existing
 uc mac address

[ Upstream commit 108b3c7810e14892c4a1819b1d268a2c785c087c ]

Currently, if function adds an existing unicast mac address, eventhough
driver will not add this address into hardware, but it will return 0 in
function hclge_add_uc_addr_common(). It will cause the state of this
unicast mac address is ACTIVE in driver, but it should be in TO-ADD state.

To fix this problem, function hclge_add_uc_addr_common() returns -EEXIST
if mac address is existing, and delete two error log to avoid printing
them all the time after this modification.

Fixes: 72110b567479 ("net: hns3: return 0 and print warning when hit duplicate MAC")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 24357e9071553..0e869f449f12c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -7581,15 +7581,8 @@ int hclge_add_uc_addr_common(struct hclge_vport *vport,
 	}
 
 	/* check if we just hit the duplicate */
-	if (!ret) {
-		dev_warn(&hdev->pdev->dev, "VF %u mac(%pM) exists\n",
-			 vport->vport_id, addr);
-		return 0;
-	}
-
-	dev_err(&hdev->pdev->dev,
-		"PF failed to add unicast entry(%pM) in the MAC table\n",
-		addr);
+	if (!ret)
+		return -EEXIST;
 
 	return ret;
 }
@@ -7743,7 +7736,13 @@ static void hclge_sync_vport_mac_list(struct hclge_vport *vport,
 		} else {
 			set_bit(HCLGE_VPORT_STATE_MAC_TBL_CHANGE,
 				&vport->state);
-			break;
+
+			/* If one unicast mac address is existing in hardware,
+			 * we need to try whether other unicast mac addresses
+			 * are new addresses that can be added.
+			 */
+			if (ret != -EEXIST)
+				break;
 		}
 	}
 }
-- 
GitLab


From 8e89876c84b23d79a7ea58c3f5c300695a227570 Mon Sep 17 00:00:00 2001
From: Huazhong Tan <tanhuazhong@huawei.com>
Date: Fri, 26 Mar 2021 09:36:25 +0800
Subject: [PATCH 0112/4878] net: hns3: fix prototype warning

[ Upstream commit a1e144d7dc3c55aa4d451e3a23cd8f34cd65ee01 ]

Correct a report warning in hns3_ethtool.c

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index c0aa3be0cdfbb..0aee100902ff2 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -301,7 +301,7 @@ out:
 }
 
 /**
- * hns3_nic_self_test - self test
+ * hns3_self_test - self test
  * @ndev: net device
  * @eth_test: test cmd
  * @data: test result
-- 
GitLab


From 85e4f5d28d25c40965004c225133457f3bcb0ac9 Mon Sep 17 00:00:00 2001
From: Peng Li <lipeng321@huawei.com>
Date: Mon, 30 Aug 2021 14:06:37 +0800
Subject: [PATCH 0113/4878] net: hns3: reconstruct function hns3_self_test

[ Upstream commit 4c8dab1c709c5a715bce14efdb8f4e889d86aa04 ]

This patch reconstructs function hns3_self_test to reduce the code
cycle complexity and make code more concise.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/hisilicon/hns3/hns3_ethtool.c    | 101 +++++++++++-------
 1 file changed, 64 insertions(+), 37 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 0aee100902ff2..436d777cce067 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -300,33 +300,8 @@ out:
 	return ret_val;
 }
 
-/**
- * hns3_self_test - self test
- * @ndev: net device
- * @eth_test: test cmd
- * @data: test result
- */
-static void hns3_self_test(struct net_device *ndev,
-			   struct ethtool_test *eth_test, u64 *data)
+static void hns3_set_selftest_param(struct hnae3_handle *h, int (*st_param)[2])
 {
-	struct hns3_nic_priv *priv = netdev_priv(ndev);
-	struct hnae3_handle *h = priv->ae_handle;
-	int st_param[HNS3_SELF_TEST_TYPE_NUM][2];
-	bool if_running = netif_running(ndev);
-	int test_index = 0;
-	u32 i;
-
-	if (hns3_nic_resetting(ndev)) {
-		netdev_err(ndev, "dev resetting!");
-		return;
-	}
-
-	/* Only do offline selftest, or pass by default */
-	if (eth_test->flags != ETH_TEST_FL_OFFLINE)
-		return;
-
-	netif_dbg(h, drv, ndev, "self test start");
-
 	st_param[HNAE3_LOOP_APP][0] = HNAE3_LOOP_APP;
 	st_param[HNAE3_LOOP_APP][1] =
 			h->flags & HNAE3_SUPPORT_APP_LOOPBACK;
@@ -343,6 +318,18 @@ static void hns3_self_test(struct net_device *ndev,
 	st_param[HNAE3_LOOP_PHY][0] = HNAE3_LOOP_PHY;
 	st_param[HNAE3_LOOP_PHY][1] =
 			h->flags & HNAE3_SUPPORT_PHY_LOOPBACK;
+}
+
+static void hns3_selftest_prepare(struct net_device *ndev,
+				  bool if_running, int (*st_param)[2])
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	if (netif_msg_ifdown(h))
+		netdev_info(ndev, "self test start\n");
+
+	hns3_set_selftest_param(h, st_param);
 
 	if (if_running)
 		ndev->netdev_ops->ndo_stop(ndev);
@@ -361,6 +348,35 @@ static void hns3_self_test(struct net_device *ndev,
 		h->ae_algo->ops->halt_autoneg(h, true);
 
 	set_bit(HNS3_NIC_STATE_TESTING, &priv->state);
+}
+
+static void hns3_selftest_restore(struct net_device *ndev, bool if_running)
+{
+	struct hns3_nic_priv *priv = netdev_priv(ndev);
+	struct hnae3_handle *h = priv->ae_handle;
+
+	clear_bit(HNS3_NIC_STATE_TESTING, &priv->state);
+
+	if (h->ae_algo->ops->halt_autoneg)
+		h->ae_algo->ops->halt_autoneg(h, false);
+
+#if IS_ENABLED(CONFIG_VLAN_8021Q)
+	if (h->ae_algo->ops->enable_vlan_filter)
+		h->ae_algo->ops->enable_vlan_filter(h, true);
+#endif
+
+	if (if_running)
+		ndev->netdev_ops->ndo_open(ndev);
+
+	if (netif_msg_ifdown(h))
+		netdev_info(ndev, "self test end\n");
+}
+
+static void hns3_do_selftest(struct net_device *ndev, int (*st_param)[2],
+			     struct ethtool_test *eth_test, u64 *data)
+{
+	int test_index = 0;
+	u32 i;
 
 	for (i = 0; i < HNS3_SELF_TEST_TYPE_NUM; i++) {
 		enum hnae3_loop loop_type = (enum hnae3_loop)st_param[i][0];
@@ -379,21 +395,32 @@ static void hns3_self_test(struct net_device *ndev,
 
 		test_index++;
 	}
+}
 
-	clear_bit(HNS3_NIC_STATE_TESTING, &priv->state);
-
-	if (h->ae_algo->ops->halt_autoneg)
-		h->ae_algo->ops->halt_autoneg(h, false);
+/**
+ * hns3_nic_self_test - self test
+ * @ndev: net device
+ * @eth_test: test cmd
+ * @data: test result
+ */
+static void hns3_self_test(struct net_device *ndev,
+			   struct ethtool_test *eth_test, u64 *data)
+{
+	int st_param[HNS3_SELF_TEST_TYPE_NUM][2];
+	bool if_running = netif_running(ndev);
 
-#if IS_ENABLED(CONFIG_VLAN_8021Q)
-	if (h->ae_algo->ops->enable_vlan_filter)
-		h->ae_algo->ops->enable_vlan_filter(h, true);
-#endif
+	if (hns3_nic_resetting(ndev)) {
+		netdev_err(ndev, "dev resetting!");
+		return;
+	}
 
-	if (if_running)
-		ndev->netdev_ops->ndo_open(ndev);
+	/* Only do offline selftest, or pass by default */
+	if (eth_test->flags != ETH_TEST_FL_OFFLINE)
+		return;
 
-	netif_dbg(h, drv, ndev, "self test end\n");
+	hns3_selftest_prepare(ndev, if_running, st_param);
+	hns3_do_selftest(ndev, st_param, eth_test, data);
+	hns3_selftest_restore(ndev, if_running);
 }
 
 static int hns3_get_sset_count(struct net_device *netdev, int stringset)
-- 
GitLab


From 071febc37e066c9bd6f417179b4f763d0b13437b Mon Sep 17 00:00:00 2001
From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Wed, 29 Sep 2021 17:35:55 +0800
Subject: [PATCH 0114/4878] net: hns3: fix always enable rx vlan filter problem
 after selftest

[ Upstream commit 27bf4af69fcb9845fb2f0076db5d562ec072e70f ]

Currently, the rx vlan filter will always be disabled before selftest and
be enabled after selftest as the rx vlan filter feature is fixed on in
old device earlier than V3.

However, this feature is not fixed in some new devices and it can be
disabled by user. In this case, it is wrong if rx vlan filter is enabled
after selftest. So fix it.

Fixes: bcc26e8dc432 ("net: hns3: remove unused code in hns3_self_test()")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 436d777cce067..cd0d7a546957a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -336,7 +336,8 @@ static void hns3_selftest_prepare(struct net_device *ndev,
 
 #if IS_ENABLED(CONFIG_VLAN_8021Q)
 	/* Disable the vlan filter for selftest does not support it */
-	if (h->ae_algo->ops->enable_vlan_filter)
+	if (h->ae_algo->ops->enable_vlan_filter &&
+	    ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
 		h->ae_algo->ops->enable_vlan_filter(h, false);
 #endif
 
@@ -361,7 +362,8 @@ static void hns3_selftest_restore(struct net_device *ndev, bool if_running)
 		h->ae_algo->ops->halt_autoneg(h, false);
 
 #if IS_ENABLED(CONFIG_VLAN_8021Q)
-	if (h->ae_algo->ops->enable_vlan_filter)
+	if (h->ae_algo->ops->enable_vlan_filter &&
+	    ndev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
 		h->ae_algo->ops->enable_vlan_filter(h, true);
 #endif
 
-- 
GitLab


From e63f6d8fe74a5e65a77189cc13930630e8e88971 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 28 Sep 2021 13:32:33 -0700
Subject: [PATCH 0115/4878] net: phy: bcm7xxx: Fixed indirect MMD operations

[ Upstream commit d88fd1b546ff19c8040cfaea76bf16aed1c5a0bb ]

When EEE support was added to the 28nm EPHY it was assumed that it would
be able to support the standard clause 45 over clause 22 register access
method. It turns out that the PHY does not support that, which is the
very reason for using the indirect shadow mode 2 bank 3 access method.

Implement {read,write}_mmd to allow the standard PHY library routines
pertaining to EEE querying and configuration to work correctly on these
PHYs. This forces us to implement a __phy_set_clr_bits() function that
does not grab the MDIO bus lock since the PHY driver's {read,write}_mmd
functions are always called with that lock held.

Fixes: 83ee102a6998 ("net: phy: bcm7xxx: add support for 28nm EPHY")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/bcm7xxx.c | 114 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 110 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c
index 15812001b3ff0..115044e21c742 100644
--- a/drivers/net/phy/bcm7xxx.c
+++ b/drivers/net/phy/bcm7xxx.c
@@ -27,7 +27,12 @@
 #define MII_BCM7XXX_SHD_2_ADDR_CTRL	0xe
 #define MII_BCM7XXX_SHD_2_CTRL_STAT	0xf
 #define MII_BCM7XXX_SHD_2_BIAS_TRIM	0x1a
+#define MII_BCM7XXX_SHD_3_PCS_CTRL	0x0
+#define MII_BCM7XXX_SHD_3_PCS_STATUS	0x1
+#define MII_BCM7XXX_SHD_3_EEE_CAP	0x2
 #define MII_BCM7XXX_SHD_3_AN_EEE_ADV	0x3
+#define MII_BCM7XXX_SHD_3_EEE_LP	0x4
+#define MII_BCM7XXX_SHD_3_EEE_WK_ERR	0x5
 #define MII_BCM7XXX_SHD_3_PCS_CTRL_2	0x6
 #define  MII_BCM7XXX_PCS_CTRL_2_DEF	0x4400
 #define MII_BCM7XXX_SHD_3_AN_STAT	0xb
@@ -216,25 +221,37 @@ static int bcm7xxx_28nm_resume(struct phy_device *phydev)
 	return genphy_config_aneg(phydev);
 }
 
-static int phy_set_clr_bits(struct phy_device *dev, int location,
-					int set_mask, int clr_mask)
+static int __phy_set_clr_bits(struct phy_device *dev, int location,
+			      int set_mask, int clr_mask)
 {
 	int v, ret;
 
-	v = phy_read(dev, location);
+	v = __phy_read(dev, location);
 	if (v < 0)
 		return v;
 
 	v &= ~clr_mask;
 	v |= set_mask;
 
-	ret = phy_write(dev, location, v);
+	ret = __phy_write(dev, location, v);
 	if (ret < 0)
 		return ret;
 
 	return v;
 }
 
+static int phy_set_clr_bits(struct phy_device *dev, int location,
+			    int set_mask, int clr_mask)
+{
+	int ret;
+
+	mutex_lock(&dev->mdio.bus->mdio_lock);
+	ret = __phy_set_clr_bits(dev, location, set_mask, clr_mask);
+	mutex_unlock(&dev->mdio.bus->mdio_lock);
+
+	return ret;
+}
+
 static int bcm7xxx_28nm_ephy_01_afe_config_init(struct phy_device *phydev)
 {
 	int ret;
@@ -398,6 +415,93 @@ static int bcm7xxx_28nm_ephy_config_init(struct phy_device *phydev)
 	return bcm7xxx_28nm_ephy_apd_enable(phydev);
 }
 
+#define MII_BCM7XXX_REG_INVALID	0xff
+
+static u8 bcm7xxx_28nm_ephy_regnum_to_shd(u16 regnum)
+{
+	switch (regnum) {
+	case MDIO_CTRL1:
+		return MII_BCM7XXX_SHD_3_PCS_CTRL;
+	case MDIO_STAT1:
+		return MII_BCM7XXX_SHD_3_PCS_STATUS;
+	case MDIO_PCS_EEE_ABLE:
+		return MII_BCM7XXX_SHD_3_EEE_CAP;
+	case MDIO_AN_EEE_ADV:
+		return MII_BCM7XXX_SHD_3_AN_EEE_ADV;
+	case MDIO_AN_EEE_LPABLE:
+		return MII_BCM7XXX_SHD_3_EEE_LP;
+	case MDIO_PCS_EEE_WK_ERR:
+		return MII_BCM7XXX_SHD_3_EEE_WK_ERR;
+	default:
+		return MII_BCM7XXX_REG_INVALID;
+	}
+}
+
+static bool bcm7xxx_28nm_ephy_dev_valid(int devnum)
+{
+	return devnum == MDIO_MMD_AN || devnum == MDIO_MMD_PCS;
+}
+
+static int bcm7xxx_28nm_ephy_read_mmd(struct phy_device *phydev,
+				      int devnum, u16 regnum)
+{
+	u8 shd = bcm7xxx_28nm_ephy_regnum_to_shd(regnum);
+	int ret;
+
+	if (!bcm7xxx_28nm_ephy_dev_valid(devnum) ||
+	    shd == MII_BCM7XXX_REG_INVALID)
+		return -EOPNOTSUPP;
+
+	/* set shadow mode 2 */
+	ret = __phy_set_clr_bits(phydev, MII_BCM7XXX_TEST,
+				 MII_BCM7XXX_SHD_MODE_2, 0);
+	if (ret < 0)
+		return ret;
+
+	/* Access the desired shadow register address */
+	ret = __phy_write(phydev, MII_BCM7XXX_SHD_2_ADDR_CTRL, shd);
+	if (ret < 0)
+		goto reset_shadow_mode;
+
+	ret = __phy_read(phydev, MII_BCM7XXX_SHD_2_CTRL_STAT);
+
+reset_shadow_mode:
+	/* reset shadow mode 2 */
+	__phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, 0,
+			   MII_BCM7XXX_SHD_MODE_2);
+	return ret;
+}
+
+static int bcm7xxx_28nm_ephy_write_mmd(struct phy_device *phydev,
+				       int devnum, u16 regnum, u16 val)
+{
+	u8 shd = bcm7xxx_28nm_ephy_regnum_to_shd(regnum);
+	int ret;
+
+	if (!bcm7xxx_28nm_ephy_dev_valid(devnum) ||
+	    shd == MII_BCM7XXX_REG_INVALID)
+		return -EOPNOTSUPP;
+
+	/* set shadow mode 2 */
+	ret = __phy_set_clr_bits(phydev, MII_BCM7XXX_TEST,
+				 MII_BCM7XXX_SHD_MODE_2, 0);
+	if (ret < 0)
+		return ret;
+
+	/* Access the desired shadow register address */
+	ret = __phy_write(phydev, MII_BCM7XXX_SHD_2_ADDR_CTRL, shd);
+	if (ret < 0)
+		goto reset_shadow_mode;
+
+	/* Write the desired value in the shadow register */
+	__phy_write(phydev, MII_BCM7XXX_SHD_2_CTRL_STAT, val);
+
+reset_shadow_mode:
+	/* reset shadow mode 2 */
+	return __phy_set_clr_bits(phydev, MII_BCM7XXX_TEST, 0,
+				  MII_BCM7XXX_SHD_MODE_2);
+}
+
 static int bcm7xxx_28nm_ephy_resume(struct phy_device *phydev)
 {
 	int ret;
@@ -595,6 +699,8 @@ static void bcm7xxx_28nm_remove(struct phy_device *phydev)
 	.get_stats	= bcm7xxx_28nm_get_phy_stats,			\
 	.probe		= bcm7xxx_28nm_probe,				\
 	.remove		= bcm7xxx_28nm_remove,				\
+	.read_mmd	= bcm7xxx_28nm_ephy_read_mmd,			\
+	.write_mmd	= bcm7xxx_28nm_ephy_write_mmd,			\
 }
 
 #define BCM7XXX_40NM_EPHY(_oui, _name)					\
-- 
GitLab


From d0d520c19e7ea19ed38dc5797b12397b6ccf9f88 Mon Sep 17 00:00:00 2001
From: Vlad Buslov <vladbu@nvidia.com>
Date: Wed, 29 Sep 2021 18:08:49 +0300
Subject: [PATCH 0116/4878] net: sched: flower: protect fl_walk() with rcu

[ Upstream commit d5ef190693a7d76c5c192d108e8dec48307b46ee ]

Patch that refactored fl_walk() to use idr_for_each_entry_continue_ul()
also removed rcu protection of individual filters which causes following
use-after-free when filter is deleted concurrently. Fix fl_walk() to obtain
rcu read lock while iterating and taking the filter reference and temporary
release the lock while calling arg->fn() callback that can sleep.

KASAN trace:

[  352.773640] ==================================================================
[  352.775041] BUG: KASAN: use-after-free in fl_walk+0x159/0x240 [cls_flower]
[  352.776304] Read of size 4 at addr ffff8881c8251480 by task tc/2987

[  352.777862] CPU: 3 PID: 2987 Comm: tc Not tainted 5.15.0-rc2+ #2
[  352.778980] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[  352.781022] Call Trace:
[  352.781573]  dump_stack_lvl+0x46/0x5a
[  352.782332]  print_address_description.constprop.0+0x1f/0x140
[  352.783400]  ? fl_walk+0x159/0x240 [cls_flower]
[  352.784292]  ? fl_walk+0x159/0x240 [cls_flower]
[  352.785138]  kasan_report.cold+0x83/0xdf
[  352.785851]  ? fl_walk+0x159/0x240 [cls_flower]
[  352.786587]  kasan_check_range+0x145/0x1a0
[  352.787337]  fl_walk+0x159/0x240 [cls_flower]
[  352.788163]  ? fl_put+0x10/0x10 [cls_flower]
[  352.789007]  ? __mutex_unlock_slowpath.constprop.0+0x220/0x220
[  352.790102]  tcf_chain_dump+0x231/0x450
[  352.790878]  ? tcf_chain_tp_delete_empty+0x170/0x170
[  352.791833]  ? __might_sleep+0x2e/0xc0
[  352.792594]  ? tfilter_notify+0x170/0x170
[  352.793400]  ? __mutex_unlock_slowpath.constprop.0+0x220/0x220
[  352.794477]  tc_dump_tfilter+0x385/0x4b0
[  352.795262]  ? tc_new_tfilter+0x1180/0x1180
[  352.796103]  ? __mod_node_page_state+0x1f/0xc0
[  352.796974]  ? __build_skb_around+0x10e/0x130
[  352.797826]  netlink_dump+0x2c0/0x560
[  352.798563]  ? netlink_getsockopt+0x430/0x430
[  352.799433]  ? __mutex_unlock_slowpath.constprop.0+0x220/0x220
[  352.800542]  __netlink_dump_start+0x356/0x440
[  352.801397]  rtnetlink_rcv_msg+0x3ff/0x550
[  352.802190]  ? tc_new_tfilter+0x1180/0x1180
[  352.802872]  ? rtnl_calcit.isra.0+0x1f0/0x1f0
[  352.803668]  ? tc_new_tfilter+0x1180/0x1180
[  352.804344]  ? _copy_from_iter_nocache+0x800/0x800
[  352.805202]  ? kasan_set_track+0x1c/0x30
[  352.805900]  netlink_rcv_skb+0xc6/0x1f0
[  352.806587]  ? rht_deferred_worker+0x6b0/0x6b0
[  352.807455]  ? rtnl_calcit.isra.0+0x1f0/0x1f0
[  352.808324]  ? netlink_ack+0x4d0/0x4d0
[  352.809086]  ? netlink_deliver_tap+0x62/0x3d0
[  352.809951]  netlink_unicast+0x353/0x480
[  352.810744]  ? netlink_attachskb+0x430/0x430
[  352.811586]  ? __alloc_skb+0xd7/0x200
[  352.812349]  netlink_sendmsg+0x396/0x680
[  352.813132]  ? netlink_unicast+0x480/0x480
[  352.813952]  ? __import_iovec+0x192/0x210
[  352.814759]  ? netlink_unicast+0x480/0x480
[  352.815580]  sock_sendmsg+0x6c/0x80
[  352.816299]  ____sys_sendmsg+0x3a5/0x3c0
[  352.817096]  ? kernel_sendmsg+0x30/0x30
[  352.817873]  ? __ia32_sys_recvmmsg+0x150/0x150
[  352.818753]  ___sys_sendmsg+0xd8/0x140
[  352.819518]  ? sendmsg_copy_msghdr+0x110/0x110
[  352.820402]  ? ___sys_recvmsg+0xf4/0x1a0
[  352.821110]  ? __copy_msghdr_from_user+0x260/0x260
[  352.821934]  ? _raw_spin_lock+0x81/0xd0
[  352.822680]  ? __handle_mm_fault+0xef3/0x1b20
[  352.823549]  ? rb_insert_color+0x2a/0x270
[  352.824373]  ? copy_page_range+0x16b0/0x16b0
[  352.825209]  ? perf_event_update_userpage+0x2d0/0x2d0
[  352.826190]  ? __fget_light+0xd9/0xf0
[  352.826941]  __sys_sendmsg+0xb3/0x130
[  352.827613]  ? __sys_sendmsg_sock+0x20/0x20
[  352.828377]  ? do_user_addr_fault+0x2c5/0x8a0
[  352.829184]  ? fpregs_assert_state_consistent+0x52/0x60
[  352.830001]  ? exit_to_user_mode_prepare+0x32/0x160
[  352.830845]  do_syscall_64+0x35/0x80
[  352.831445]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  352.832331] RIP: 0033:0x7f7bee973c17
[  352.833078] Code: 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[  352.836202] RSP: 002b:00007ffcbb368e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  352.837524] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7bee973c17
[  352.838715] RDX: 0000000000000000 RSI: 00007ffcbb368e50 RDI: 0000000000000003
[  352.839838] RBP: 00007ffcbb36d090 R08: 00000000cea96d79 R09: 00007f7beea34a40
[  352.841021] R10: 00000000004059bb R11: 0000000000000246 R12: 000000000046563f
[  352.842208] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffcbb36d088

[  352.843784] Allocated by task 2960:
[  352.844451]  kasan_save_stack+0x1b/0x40
[  352.845173]  __kasan_kmalloc+0x7c/0x90
[  352.845873]  fl_change+0x282/0x22db [cls_flower]
[  352.846696]  tc_new_tfilter+0x6cf/0x1180
[  352.847493]  rtnetlink_rcv_msg+0x471/0x550
[  352.848323]  netlink_rcv_skb+0xc6/0x1f0
[  352.849097]  netlink_unicast+0x353/0x480
[  352.849886]  netlink_sendmsg+0x396/0x680
[  352.850678]  sock_sendmsg+0x6c/0x80
[  352.851398]  ____sys_sendmsg+0x3a5/0x3c0
[  352.852202]  ___sys_sendmsg+0xd8/0x140
[  352.852967]  __sys_sendmsg+0xb3/0x130
[  352.853718]  do_syscall_64+0x35/0x80
[  352.854457]  entry_SYSCALL_64_after_hwframe+0x44/0xae

[  352.855830] Freed by task 7:
[  352.856421]  kasan_save_stack+0x1b/0x40
[  352.857139]  kasan_set_track+0x1c/0x30
[  352.857854]  kasan_set_free_info+0x20/0x30
[  352.858609]  __kasan_slab_free+0xed/0x130
[  352.859348]  kfree+0xa7/0x3c0
[  352.859951]  process_one_work+0x44d/0x780
[  352.860685]  worker_thread+0x2e2/0x7e0
[  352.861390]  kthread+0x1f4/0x220
[  352.862022]  ret_from_fork+0x1f/0x30

[  352.862955] Last potentially related work creation:
[  352.863758]  kasan_save_stack+0x1b/0x40
[  352.864378]  kasan_record_aux_stack+0xab/0xc0
[  352.865028]  insert_work+0x30/0x160
[  352.865617]  __queue_work+0x351/0x670
[  352.866261]  rcu_work_rcufn+0x30/0x40
[  352.866917]  rcu_core+0x3b2/0xdb0
[  352.867561]  __do_softirq+0xf6/0x386

[  352.868708] Second to last potentially related work creation:
[  352.869779]  kasan_save_stack+0x1b/0x40
[  352.870560]  kasan_record_aux_stack+0xab/0xc0
[  352.871426]  call_rcu+0x5f/0x5c0
[  352.872108]  queue_rcu_work+0x44/0x50
[  352.872855]  __fl_put+0x17c/0x240 [cls_flower]
[  352.873733]  fl_delete+0xc7/0x100 [cls_flower]
[  352.874607]  tc_del_tfilter+0x510/0xb30
[  352.886085]  rtnetlink_rcv_msg+0x471/0x550
[  352.886875]  netlink_rcv_skb+0xc6/0x1f0
[  352.887636]  netlink_unicast+0x353/0x480
[  352.888285]  netlink_sendmsg+0x396/0x680
[  352.888942]  sock_sendmsg+0x6c/0x80
[  352.889583]  ____sys_sendmsg+0x3a5/0x3c0
[  352.890311]  ___sys_sendmsg+0xd8/0x140
[  352.891019]  __sys_sendmsg+0xb3/0x130
[  352.891716]  do_syscall_64+0x35/0x80
[  352.892395]  entry_SYSCALL_64_after_hwframe+0x44/0xae

[  352.893666] The buggy address belongs to the object at ffff8881c8251000
                which belongs to the cache kmalloc-2k of size 2048
[  352.895696] The buggy address is located 1152 bytes inside of
                2048-byte region [ffff8881c8251000, ffff8881c8251800)
[  352.897640] The buggy address belongs to the page:
[  352.898492] page:00000000213bac35 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c8250
[  352.900110] head:00000000213bac35 order:3 compound_mapcount:0 compound_pincount:0
[  352.901541] flags: 0x2ffff800010200(slab|head|node=0|zone=2|lastcpupid=0x1ffff)
[  352.902908] raw: 002ffff800010200 0000000000000000 dead000000000122 ffff888100042f00
[  352.904391] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000
[  352.905861] page dumped because: kasan: bad access detected

[  352.907323] Memory state around the buggy address:
[  352.908218]  ffff8881c8251380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  352.909471]  ffff8881c8251400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  352.910735] >ffff8881c8251480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  352.912012]                    ^
[  352.912642]  ffff8881c8251500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  352.913919]  ffff8881c8251580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  352.915185] ==================================================================

Fixes: d39d714969cd ("idr: introduce idr_for_each_entry_continue_ul()")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/cls_flower.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index a5212a3f86e2f..8ff6945b9f8f4 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -2169,18 +2169,24 @@ static void fl_walk(struct tcf_proto *tp, struct tcf_walker *arg,
 
 	arg->count = arg->skip;
 
+	rcu_read_lock();
 	idr_for_each_entry_continue_ul(&head->handle_idr, f, tmp, id) {
 		/* don't return filters that are being deleted */
 		if (!refcount_inc_not_zero(&f->refcnt))
 			continue;
+		rcu_read_unlock();
+
 		if (arg->fn(tp, f, arg) < 0) {
 			__fl_put(f);
 			arg->stop = 1;
+			rcu_read_lock();
 			break;
 		}
 		__fl_put(f);
 		arg->count++;
+		rcu_read_lock();
 	}
+	rcu_read_unlock();
 	arg->cookie = id;
 }
 
-- 
GitLab


From 3db53827a0e9130d9e2cbe3c3b5bca601caa4c74 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 29 Sep 2021 15:57:50 -0700
Subject: [PATCH 0117/4878] af_unix: fix races in sk_peer_pid and sk_peer_cred
 accesses

[ Upstream commit 35306eb23814444bd4021f8a1c3047d3cb0c8b2b ]

Jann Horn reported that SO_PEERCRED and SO_PEERGROUPS implementations
are racy, as af_unix can concurrently change sk_peer_pid and sk_peer_cred.

In order to fix this issue, this patch adds a new spinlock that needs
to be used whenever these fields are read or written.

Jann also pointed out that l2cap_sock_get_peer_pid_cb() is currently
reading sk->sk_peer_pid which makes no sense, as this field
is only possibly set by AF_UNIX sockets.
We will have to clean this in a separate patch.
This could be done by reverting b48596d1dc25 "Bluetooth: L2CAP: Add get_peer_pid callback"
or implementing what was truly expected.

Fixes: 109f6e39fa07 ("af_unix: Allow SO_PEERCRED to work across namespaces.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jann Horn <jannh@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/sock.h |  2 ++
 net/core/sock.c    | 32 ++++++++++++++++++++++++++------
 net/unix/af_unix.c | 34 ++++++++++++++++++++++++++++------
 3 files changed, 56 insertions(+), 12 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 3c7addf951509..cdca984f36305 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -479,8 +479,10 @@ struct sock {
 	u32			sk_ack_backlog;
 	u32			sk_max_ack_backlog;
 	kuid_t			sk_uid;
+	spinlock_t		sk_peer_lock;
 	struct pid		*sk_peer_pid;
 	const struct cred	*sk_peer_cred;
+
 	long			sk_rcvtimeo;
 	ktime_t			sk_stamp;
 #if BITS_PER_LONG==32
diff --git a/net/core/sock.c b/net/core/sock.c
index d638c5361ed29..f9c835167391d 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1255,6 +1255,16 @@ set_sndbuf:
 }
 EXPORT_SYMBOL(sock_setsockopt);
 
+static const struct cred *sk_get_peer_cred(struct sock *sk)
+{
+	const struct cred *cred;
+
+	spin_lock(&sk->sk_peer_lock);
+	cred = get_cred(sk->sk_peer_cred);
+	spin_unlock(&sk->sk_peer_lock);
+
+	return cred;
+}
 
 static void cred_to_ucred(struct pid *pid, const struct cred *cred,
 			  struct ucred *ucred)
@@ -1428,7 +1438,11 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		struct ucred peercred;
 		if (len > sizeof(peercred))
 			len = sizeof(peercred);
+
+		spin_lock(&sk->sk_peer_lock);
 		cred_to_ucred(sk->sk_peer_pid, sk->sk_peer_cred, &peercred);
+		spin_unlock(&sk->sk_peer_lock);
+
 		if (copy_to_user(optval, &peercred, len))
 			return -EFAULT;
 		goto lenout;
@@ -1436,20 +1450,23 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 
 	case SO_PEERGROUPS:
 	{
+		const struct cred *cred;
 		int ret, n;
 
-		if (!sk->sk_peer_cred)
+		cred = sk_get_peer_cred(sk);
+		if (!cred)
 			return -ENODATA;
 
-		n = sk->sk_peer_cred->group_info->ngroups;
+		n = cred->group_info->ngroups;
 		if (len < n * sizeof(gid_t)) {
 			len = n * sizeof(gid_t);
+			put_cred(cred);
 			return put_user(len, optlen) ? -EFAULT : -ERANGE;
 		}
 		len = n * sizeof(gid_t);
 
-		ret = groups_to_user((gid_t __user *)optval,
-				     sk->sk_peer_cred->group_info);
+		ret = groups_to_user((gid_t __user *)optval, cred->group_info);
+		put_cred(cred);
 		if (ret)
 			return ret;
 		goto lenout;
@@ -1788,9 +1805,10 @@ static void __sk_destruct(struct rcu_head *head)
 		sk->sk_frag.page = NULL;
 	}
 
-	if (sk->sk_peer_cred)
-		put_cred(sk->sk_peer_cred);
+	/* We do not need to acquire sk->sk_peer_lock, we are the last user. */
+	put_cred(sk->sk_peer_cred);
 	put_pid(sk->sk_peer_pid);
+
 	if (likely(sk->sk_net_refcnt))
 		put_net(sock_net(sk));
 	sk_prot_free(sk->sk_prot_creator, sk);
@@ -3000,6 +3018,8 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
 	sk->sk_peer_pid 	=	NULL;
 	sk->sk_peer_cred	=	NULL;
+	spin_lock_init(&sk->sk_peer_lock);
+
 	sk->sk_write_pending	=	0;
 	sk->sk_rcvlowat		=	1;
 	sk->sk_rcvtimeo		=	MAX_SCHEDULE_TIMEOUT;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index d5c0ae34b1e45..b7edca89e0ba9 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -593,20 +593,42 @@ static void unix_release_sock(struct sock *sk, int embrion)
 
 static void init_peercred(struct sock *sk)
 {
-	put_pid(sk->sk_peer_pid);
-	if (sk->sk_peer_cred)
-		put_cred(sk->sk_peer_cred);
+	const struct cred *old_cred;
+	struct pid *old_pid;
+
+	spin_lock(&sk->sk_peer_lock);
+	old_pid = sk->sk_peer_pid;
+	old_cred = sk->sk_peer_cred;
 	sk->sk_peer_pid  = get_pid(task_tgid(current));
 	sk->sk_peer_cred = get_current_cred();
+	spin_unlock(&sk->sk_peer_lock);
+
+	put_pid(old_pid);
+	put_cred(old_cred);
 }
 
 static void copy_peercred(struct sock *sk, struct sock *peersk)
 {
-	put_pid(sk->sk_peer_pid);
-	if (sk->sk_peer_cred)
-		put_cred(sk->sk_peer_cred);
+	const struct cred *old_cred;
+	struct pid *old_pid;
+
+	if (sk < peersk) {
+		spin_lock(&sk->sk_peer_lock);
+		spin_lock_nested(&peersk->sk_peer_lock, SINGLE_DEPTH_NESTING);
+	} else {
+		spin_lock(&peersk->sk_peer_lock);
+		spin_lock_nested(&sk->sk_peer_lock, SINGLE_DEPTH_NESTING);
+	}
+	old_pid = sk->sk_peer_pid;
+	old_cred = sk->sk_peer_cred;
 	sk->sk_peer_pid  = get_pid(peersk->sk_peer_pid);
 	sk->sk_peer_cred = get_cred(peersk->sk_peer_cred);
+
+	spin_unlock(&sk->sk_peer_lock);
+	spin_unlock(&peersk->sk_peer_lock);
+
+	put_pid(old_pid);
+	put_cred(old_cred);
 }
 
 static int unix_listen(struct socket *sock, int backlog)
-- 
GitLab


From 7fc5f60a01bbcce366d2180722f2bf71c9e3c3df Mon Sep 17 00:00:00 2001
From: Kan Liang <kan.liang@linux.intel.com>
Date: Tue, 28 Sep 2021 08:19:03 -0700
Subject: [PATCH 0118/4878] perf/x86/intel: Update event constraints for ICX

[ Upstream commit ecc2123e09f9e71ddc6c53d71e283b8ada685fe2 ]

According to the latest event list, the event encoding 0xEF is only
available on the first 4 counters. Add it into the event constraints
table.

Fixes: 6017608936c1 ("perf/x86/intel: Add Icelake support")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1632842343-25862-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/intel/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 3b8b8eede1a8a..4684bf9fcc428 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -263,6 +263,7 @@ static struct event_constraint intel_icl_event_constraints[] = {
 	INTEL_EVENT_CONSTRAINT_RANGE(0xa8, 0xb0, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xb7, 0xbd, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xe6, 0xf),
+	INTEL_EVENT_CONSTRAINT(0xef, 0xf),
 	INTEL_EVENT_CONSTRAINT_RANGE(0xf0, 0xf4, 0xf),
 	EVENT_CONSTRAINT_END
 };
-- 
GitLab


From 44c600a57d57547a0bb4865f2589cfb26728b524 Mon Sep 17 00:00:00 2001
From: Vadim Pasternak <vadimp@nvidia.com>
Date: Mon, 27 Sep 2021 10:07:40 +0300
Subject: [PATCH 0119/4878] hwmon: (pmbus/mp2975) Add missed POUT attribute for
 page 1 mp2975 controller

[ Upstream commit 2292e2f685cd5c65e3f47bbcf9f469513acc3195 ]

Add missed attribute for reading POUT from page 1.
It is supported by device, but has been missed in initial commit.

Fixes: 2c6fcbb21149 ("hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20210927070740.2149290-1-vadimp@nvidia.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pmbus/mp2975.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c
index 1c3e2a9453b12..a41fe06e0ad4c 100644
--- a/drivers/hwmon/pmbus/mp2975.c
+++ b/drivers/hwmon/pmbus/mp2975.c
@@ -54,7 +54,7 @@
 
 #define MP2975_RAIL2_FUNC	(PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | \
 				 PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | \
-				 PMBUS_PHASE_VIRTUAL)
+				 PMBUS_HAVE_POUT | PMBUS_PHASE_VIRTUAL)
 
 struct mp2975_data {
 	struct pmbus_driver_info info;
-- 
GitLab


From 011b4de950d80d9438e67b44622e2a587e097d56 Mon Sep 17 00:00:00 2001
From: Keith Busch <kbusch@kernel.org>
Date: Mon, 27 Sep 2021 08:43:06 -0700
Subject: [PATCH 0120/4878] nvme: add command id quirk for apple controllers

commit a2941f6aa71a72be2c82c0a168523a492d093530 upstream.

Some apple controllers use the command id as an index to implementation
specific data structures and will fail if the value is out of bounds.
The nvme driver's recently introduced command sequence number breaks
this controller.

Provide a quirk so these spec incompliant controllers can function as
before. The driver will not have the ability to detect bad completions
when this quirk is used, but we weren't previously checking this anyway.

The quirk bit was selected so that it can readily apply to stable.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=214509
Cc: Sven Peter <sven@svenpeter.dev>
Reported-by: Orlando Chamberlain <redecorating@protonmail.com>
Reported-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210927154306.387437-1-kbusch@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/core.c | 4 +++-
 drivers/nvme/host/nvme.h | 6 ++++++
 drivers/nvme/host/pci.c  | 3 ++-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index bbc3efef50278..99b5152482fe4 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -831,6 +831,7 @@ EXPORT_SYMBOL_GPL(nvme_cleanup_cmd);
 blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
 		struct nvme_command *cmd)
 {
+	struct nvme_ctrl *ctrl = nvme_req(req)->ctrl;
 	blk_status_t ret = BLK_STS_OK;
 
 	nvme_clear_nvme_request(req);
@@ -877,7 +878,8 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
 		return BLK_STS_IOERR;
 	}
 
-	nvme_req(req)->genctr++;
+	if (!(ctrl->quirks & NVME_QUIRK_SKIP_CID_GEN))
+		nvme_req(req)->genctr++;
 	cmd->common.command_id = nvme_cid(req);
 	trace_nvme_setup_cmd(req, cmd);
 	return ret;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 8c735c55c15bf..5dd1dd8021ba1 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -144,6 +144,12 @@ enum nvme_quirks {
 	 * NVMe 1.3 compliance.
 	 */
 	NVME_QUIRK_NO_NS_DESC_LIST		= (1 << 15),
+
+	/*
+	 * The controller requires the command_id value be be limited, so skip
+	 * encoding the generation sequence number.
+	 */
+	NVME_QUIRK_SKIP_CID_GEN			= (1 << 17),
 };
 
 /*
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 09767a805492c..d79abb88a0c62 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3259,7 +3259,8 @@ static const struct pci_device_id nvme_id_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2005),
 		.driver_data = NVME_QUIRK_SINGLE_VECTOR |
 				NVME_QUIRK_128_BYTES_SQES |
-				NVME_QUIRK_SHARED_TAGS },
+				NVME_QUIRK_SHARED_TAGS |
+				NVME_QUIRK_SKIP_CID_GEN },
 
 	{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) },
 	{ 0, }
-- 
GitLab


From 15fd3954bca729467675b976e85f54f1d03a2aad Mon Sep 17 00:00:00 2001
From: Chen Jingwen <chenjingwen6@huawei.com>
Date: Tue, 28 Sep 2021 20:56:57 +0800
Subject: [PATCH 0121/4878] elf: don't use MAP_FIXED_NOREPLACE for elf
 interpreter mappings

commit 9b2f72cc0aa4bb444541bb87581c35b7508b37d3 upstream.

In commit b212921b13bd ("elf: don't use MAP_FIXED_NOREPLACE for elf
executable mappings") we still leave MAP_FIXED_NOREPLACE in place for
load_elf_interp.

Unfortunately, this will cause kernel to fail to start with:

    1 (init): Uhuuh, elf segment at 00003ffff7ffd000 requested but the memory is mapped already
    Failed to execute /init (error -17)

The reason is that the elf interpreter (ld.so) has overlapping segments.

  readelf -l ld-2.31.so
  Program Headers:
    Type           Offset             VirtAddr           PhysAddr
                   FileSiz            MemSiz              Flags  Align
    LOAD           0x0000000000000000 0x0000000000000000 0x0000000000000000
                   0x000000000002c94c 0x000000000002c94c  R E    0x10000
    LOAD           0x000000000002dae0 0x000000000003dae0 0x000000000003dae0
                   0x00000000000021e8 0x0000000000002320  RW     0x10000
    LOAD           0x000000000002fe00 0x000000000003fe00 0x000000000003fe00
                   0x00000000000011ac 0x0000000000001328  RW     0x10000

The reason for this problem is the same as described in commit
ad55eac74f20 ("elf: enforce MAP_FIXED on overlaying elf segments").

Not only executable binaries, elf interpreters (e.g. ld.so) can have
overlapping elf segments, so we better drop MAP_FIXED_NOREPLACE and go
back to MAP_FIXED in load_elf_interp.

Fixes: 4ed28639519c ("fs, elf: drop MAP_FIXED usage from elf_map")
Cc: <stable@vger.kernel.org> # v4.19
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Chen Jingwen <chenjingwen6@huawei.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/binfmt_elf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index fa50e8936f5fc..04c4aa7a1df2c 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -627,7 +627,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 
 			vaddr = eppnt->p_vaddr;
 			if (interp_elf_ex->e_type == ET_EXEC || load_addr_set)
-				elf_type |= MAP_FIXED_NOREPLACE;
+				elf_type |= MAP_FIXED;
 			else if (no_base && interp_elf_ex->e_type == ET_DYN)
 				load_addr = -vaddr;
 
-- 
GitLab


From 3bef1b7242e0a344177ba95ddafb3d2c67693ab2 Mon Sep 17 00:00:00 2001
From: Nirmoy Das <nirmoy.das@amd.com>
Date: Thu, 2 Sep 2021 12:29:17 +0200
Subject: [PATCH 0122/4878] debugfs: debugfs_create_file_size(): use IS_ERR to
 check for error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit af505cad9567f7a500d34bf183696d570d7f6810 upstream.

debugfs_create_file() returns encoded error so use IS_ERR for checking
return value.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Fixes: ff9fb72bc077 ("debugfs: return error values, not NULL")
Cc: stable <stable@vger.kernel.org>
References: https://gitlab.freedesktop.org/drm/amd/-/issues/1686
Link: https://lore.kernel.org/r/20210902102917.2233-1-nirmoy.das@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/debugfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 720d65f224f09..848e0aaa8da5d 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -524,7 +524,7 @@ void debugfs_create_file_size(const char *name, umode_t mode,
 {
 	struct dentry *de = debugfs_create_file(name, mode, parent, data, fops);
 
-	if (de)
+	if (!IS_ERR(de))
 		d_inode(de)->i_size = file_size;
 }
 EXPORT_SYMBOL_GPL(debugfs_create_file_size);
-- 
GitLab


From 5f6a309a699675680df15d9b6d389114515b4426 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 17 Sep 2021 13:46:17 +0200
Subject: [PATCH 0123/4878] ipack: ipoctal: fix stack information leak

commit a89936cce87d60766a75732a9e7e25c51164f47c upstream.

The tty driver name is used also after registering the driver and must
specifically not be allocated on the stack to avoid leaking information
to user space (or triggering an oops).

Drivers should not try to encode topology information in the tty device
name but this one snuck in through staging without anyone noticing and
another driver has since copied this malpractice.

Fixing the ABI is a separate issue, but this at least plugs the security
hole.

Fixes: ba4dc61fe8c5 ("Staging: ipack: add support for IP-OCTAL mezzanine board")
Cc: stable@vger.kernel.org      # 3.5
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917114622.5412-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ipack/devices/ipoctal.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index d480a514c9837..ced928afc13c6 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -266,7 +266,6 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 	int res;
 	int i;
 	struct tty_driver *tty;
-	char name[20];
 	struct ipoctal_channel *channel;
 	struct ipack_region *region;
 	void __iomem *addr;
@@ -357,8 +356,11 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 	/* Fill struct tty_driver with ipoctal data */
 	tty->owner = THIS_MODULE;
 	tty->driver_name = KBUILD_MODNAME;
-	sprintf(name, KBUILD_MODNAME ".%d.%d.", bus_nr, slot);
-	tty->name = name;
+	tty->name = kasprintf(GFP_KERNEL, KBUILD_MODNAME ".%d.%d.", bus_nr, slot);
+	if (!tty->name) {
+		res = -ENOMEM;
+		goto err_put_driver;
+	}
 	tty->major = 0;
 
 	tty->minor_start = 0;
@@ -374,8 +376,7 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 	res = tty_register_driver(tty);
 	if (res) {
 		dev_err(&ipoctal->dev->dev, "Can't register tty driver.\n");
-		put_tty_driver(tty);
-		return res;
+		goto err_free_name;
 	}
 
 	/* Save struct tty_driver for use it when uninstalling the device */
@@ -412,6 +413,13 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 				       ipoctal_irq_handler, ipoctal);
 
 	return 0;
+
+err_free_name:
+	kfree(tty->name);
+err_put_driver:
+	put_tty_driver(tty);
+
+	return res;
 }
 
 static inline int ipoctal_copy_write_buffer(struct ipoctal_channel *channel,
@@ -700,6 +708,7 @@ static void __ipoctal_remove(struct ipoctal *ipoctal)
 	}
 
 	tty_unregister_driver(ipoctal->tty_drv);
+	kfree(ipoctal->tty_drv->name);
 	put_tty_driver(ipoctal->tty_drv);
 	kfree(ipoctal);
 }
-- 
GitLab


From f46e5db92fa2c28724724a39f1f51e8ca6a78de9 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 17 Sep 2021 13:46:18 +0200
Subject: [PATCH 0124/4878] ipack: ipoctal: fix tty registration race

commit 65c001df517a7bf9be8621b53d43c89f426ce8d6 upstream.

Make sure to set the tty class-device driver data before registering the
tty to avoid having a racing open() dereference a NULL pointer.

Fixes: 9c1d784afc6f ("Staging: ipack/devices/ipoctal: Get rid of ipoctal_list.")
Cc: stable@vger.kernel.org      # 3.7
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917114622.5412-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ipack/devices/ipoctal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index ced928afc13c6..84488dc34942f 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -395,13 +395,13 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 		spin_lock_init(&channel->lock);
 		channel->pointer_read = 0;
 		channel->pointer_write = 0;
-		tty_dev = tty_port_register_device(&channel->tty_port, tty, i, NULL);
+		tty_dev = tty_port_register_device_attr(&channel->tty_port, tty,
+							i, NULL, channel, NULL);
 		if (IS_ERR(tty_dev)) {
 			dev_err(&ipoctal->dev->dev, "Failed to register tty device.\n");
 			tty_port_destroy(&channel->tty_port);
 			continue;
 		}
-		dev_set_drvdata(tty_dev, channel);
 	}
 
 	/*
-- 
GitLab


From 67d1df661088b70382cd2499945ad80333c16ba1 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 17 Sep 2021 13:46:19 +0200
Subject: [PATCH 0125/4878] ipack: ipoctal: fix tty-registration error handling

commit cd20d59291d1790dc74248476e928f57fc455189 upstream.

Registration of the ipoctal tty devices is unlikely to fail, but if it
ever does, make sure not to deregister a never registered tty device
(and dereference a NULL pointer) when the driver is later unbound.

Fixes: 2afb41d9d30d ("Staging: ipack/devices/ipoctal: Check tty_register_device return value.")
Cc: stable@vger.kernel.org      # 3.7
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917114622.5412-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ipack/devices/ipoctal.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index 84488dc34942f..4dd924994bb9b 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -35,6 +35,7 @@ struct ipoctal_channel {
 	unsigned int			pointer_read;
 	unsigned int			pointer_write;
 	struct tty_port			tty_port;
+	bool				tty_registered;
 	union scc2698_channel __iomem	*regs;
 	union scc2698_block __iomem	*block_regs;
 	unsigned int			board_id;
@@ -399,9 +400,11 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 							i, NULL, channel, NULL);
 		if (IS_ERR(tty_dev)) {
 			dev_err(&ipoctal->dev->dev, "Failed to register tty device.\n");
+			tty_port_free_xmit_buf(&channel->tty_port);
 			tty_port_destroy(&channel->tty_port);
 			continue;
 		}
+		channel->tty_registered = true;
 	}
 
 	/*
@@ -702,6 +705,10 @@ static void __ipoctal_remove(struct ipoctal *ipoctal)
 
 	for (i = 0; i < NR_CHANNELS; i++) {
 		struct ipoctal_channel *channel = &ipoctal->channel[i];
+
+		if (!channel->tty_registered)
+			continue;
+
 		tty_unregister_device(ipoctal->tty_drv, i);
 		tty_port_free_xmit_buf(&channel->tty_port);
 		tty_port_destroy(&channel->tty_port);
-- 
GitLab


From 843efca98e6a24a917585247883d7cc34e9fe077 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 17 Sep 2021 13:46:20 +0200
Subject: [PATCH 0126/4878] ipack: ipoctal: fix missing allocation-failure
 check

commit 445c8132727728dc297492a7d9fc074af3e94ba3 upstream.

Add the missing error handling when allocating the transmit buffer to
avoid dereferencing a NULL pointer in write() should the allocation
ever fail.

Fixes: ba4dc61fe8c5 ("Staging: ipack: add support for IP-OCTAL mezzanine board")
Cc: stable@vger.kernel.org      # 3.5
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917114622.5412-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ipack/devices/ipoctal.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index 4dd924994bb9b..9e6e105e35aa7 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -388,7 +388,9 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
 
 		channel = &ipoctal->channel[i];
 		tty_port_init(&channel->tty_port);
-		tty_port_alloc_xmit_buf(&channel->tty_port);
+		res = tty_port_alloc_xmit_buf(&channel->tty_port);
+		if (res)
+			continue;
 		channel->tty_port.ops = &ipoctal_tty_port_ops;
 
 		ipoctal_reset_stats(&channel->stats);
-- 
GitLab


From 7cea848678470daadbfdaa6a112b823c290f900c Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 17 Sep 2021 13:46:21 +0200
Subject: [PATCH 0127/4878] ipack: ipoctal: fix module reference leak

commit bb8a4fcb2136508224c596a7e665bdba1d7c3c27 upstream.

A reference to the carrier module was taken on every open but was only
released once when the final reference to the tty struct was dropped.

Fix this by taking the module reference and initialising the tty driver
data when installing the tty.

Fixes: 82a82340bab6 ("ipoctal: get carrier driver to avoid rmmod")
Cc: stable@vger.kernel.org      # 3.18
Cc: Federico Vaga <federico.vaga@cern.ch>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917114622.5412-6-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ipack/devices/ipoctal.c | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c
index 9e6e105e35aa7..1f7512c991a32 100644
--- a/drivers/ipack/devices/ipoctal.c
+++ b/drivers/ipack/devices/ipoctal.c
@@ -84,22 +84,34 @@ static int ipoctal_port_activate(struct tty_port *port, struct tty_struct *tty)
 	return 0;
 }
 
-static int ipoctal_open(struct tty_struct *tty, struct file *file)
+static int ipoctal_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct ipoctal_channel *channel = dev_get_drvdata(tty->dev);
 	struct ipoctal *ipoctal = chan_to_ipoctal(channel, tty->index);
-	int err;
-
-	tty->driver_data = channel;
+	int res;
 
 	if (!ipack_get_carrier(ipoctal->dev))
 		return -EBUSY;
 
-	err = tty_port_open(&channel->tty_port, tty, file);
-	if (err)
-		ipack_put_carrier(ipoctal->dev);
+	res = tty_standard_install(driver, tty);
+	if (res)
+		goto err_put_carrier;
+
+	tty->driver_data = channel;
+
+	return 0;
+
+err_put_carrier:
+	ipack_put_carrier(ipoctal->dev);
+
+	return res;
+}
+
+static int ipoctal_open(struct tty_struct *tty, struct file *file)
+{
+	struct ipoctal_channel *channel = tty->driver_data;
 
-	return err;
+	return tty_port_open(&channel->tty_port, tty, file);
 }
 
 static void ipoctal_reset_stats(struct ipoctal_stats *stats)
@@ -665,6 +677,7 @@ static void ipoctal_cleanup(struct tty_struct *tty)
 
 static const struct tty_operations ipoctal_fops = {
 	.ioctl =		NULL,
+	.install =		ipoctal_install,
 	.open =			ipoctal_open,
 	.close =		ipoctal_close,
 	.write =		ipoctal_write_tty,
-- 
GitLab


From d11502fa26913f84883438c55fab0a8cb0d11474 Mon Sep 17 00:00:00 2001
From: Ritesh Harjani <riteshh@linux.ibm.com>
Date: Sat, 5 Jun 2021 10:39:32 +0530
Subject: [PATCH 0128/4878] ext4: fix loff_t overflow in ext4_max_bitmap_size()

commit 75ca6ad408f459f00b09a64f04c774559848c097 upstream.

We should use unsigned long long rather than loff_t to avoid
overflow in ext4_max_bitmap_size() for comparison before returning.
w/o this patch sbi->s_bitmap_maxbytes was becoming a negative
value due to overflow of upper_limit (with has_huge_files as true)

Below is a quick test to trigger it on a 64KB pagesize system.

sudo mkfs.ext4 -b 65536 -O ^has_extents,^64bit /dev/loop2
sudo mount /dev/loop2 /mnt
sudo echo "hello" > /mnt/hello 	-> This will error out with
				"echo: write error: File too large"

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/594f409e2c543e90fd836b78188dfa5c575065ba.1622867594.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/super.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 099e4afa41e52..e5e896b6200ac 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3194,17 +3194,17 @@ static loff_t ext4_max_size(int blkbits, int has_huge_files)
  */
 static loff_t ext4_max_bitmap_size(int bits, int has_huge_files)
 {
-	loff_t res = EXT4_NDIR_BLOCKS;
+	unsigned long long upper_limit, res = EXT4_NDIR_BLOCKS;
 	int meta_blocks;
-	loff_t upper_limit;
-	/* This is calculated to be the largest file size for a dense, block
+
+	/*
+	 * This is calculated to be the largest file size for a dense, block
 	 * mapped file such that the file's total number of 512-byte sectors,
 	 * including data and all indirect blocks, does not exceed (2^48 - 1).
 	 *
 	 * __u32 i_blocks_lo and _u16 i_blocks_high represent the total
 	 * number of 512-byte sectors of the file.
 	 */
-
 	if (!has_huge_files) {
 		/*
 		 * !has_huge_files or implies that the inode i_block field
@@ -3247,7 +3247,7 @@ static loff_t ext4_max_bitmap_size(int bits, int has_huge_files)
 	if (res > MAX_LFS_FILESIZE)
 		res = MAX_LFS_FILESIZE;
 
-	return res;
+	return (loff_t)res;
 }
 
 static ext4_fsblk_t descriptor_loc(struct super_block *sb,
-- 
GitLab


From dc0942168ab3e38e3a6e6368fae3ebc4b5f4ce2d Mon Sep 17 00:00:00 2001
From: Hou Tao <houtao1@huawei.com>
Date: Fri, 20 Aug 2021 12:45:05 +0800
Subject: [PATCH 0129/4878] ext4: limit the number of blocks in one ADD_RANGE
 TLV

commit a2c2f0826e2b75560b31daf1cd9a755ab93cf4c6 upstream.

Now EXT4_FC_TAG_ADD_RANGE uses ext4_extent to track the
newly-added blocks, but the limit on the max value of
ee_len field is ignored, and it can lead to BUG_ON as
shown below when running command "fallocate -l 128M file"
on a fast_commit-enabled fs:

  kernel BUG at fs/ext4/ext4_extents.h:199!
  invalid opcode: 0000 [#1] SMP PTI
  CPU: 3 PID: 624 Comm: fallocate Not tainted 5.14.0-rc6+ #1
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
  RIP: 0010:ext4_fc_write_inode_data+0x1f3/0x200
  Call Trace:
   ? ext4_fc_write_inode+0xf2/0x150
   ext4_fc_commit+0x93b/0xa00
   ? ext4_fallocate+0x1ad/0x10d0
   ext4_sync_file+0x157/0x340
   ? ext4_sync_file+0x157/0x340
   vfs_fsync_range+0x49/0x80
   do_fsync+0x3d/0x70
   __x64_sys_fsync+0x14/0x20
   do_syscall_64+0x3b/0xc0
   entry_SYSCALL_64_after_hwframe+0x44/0xae

Simply fixing it by limiting the number of blocks
in one EXT4_FC_TAG_ADD_RANGE TLV.

Fixes: aa75f4d3daae ("ext4: main fast-commit commit path")
Cc: stable@kernel.org
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210820044505.474318-1-houtao1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/fast_commit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 53647fa038773..08ca690f928bd 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -832,6 +832,12 @@ static int ext4_fc_write_inode_data(struct inode *inode, u32 *crc)
 					    sizeof(lrange), (u8 *)&lrange, crc))
 				return -ENOSPC;
 		} else {
+			unsigned int max = (map.m_flags & EXT4_MAP_UNWRITTEN) ?
+				EXT_UNWRITTEN_MAX_LEN : EXT_INIT_MAX_LEN;
+
+			/* Limit the number of blocks in one extent */
+			map.m_len = min(max, map.m_len);
+
 			fc_ext.fc_ino = cpu_to_le32(inode->i_ino);
 			ex = (struct ext4_extent *)&fc_ext.fc_ex;
 			ex->ee_block = cpu_to_le32(map.m_lblk);
-- 
GitLab


From 9ccf35492b084ecbc916761a5c6f42599450f013 Mon Sep 17 00:00:00 2001
From: Jeffle Xu <jefflexu@linux.alibaba.com>
Date: Mon, 23 Aug 2021 14:13:58 +0800
Subject: [PATCH 0130/4878] ext4: fix reserved space counter leakage

commit 6fed83957f21eff11c8496e9f24253b03d2bc1dc upstream.

When ext4_insert_delayed block receives and recovers from an error from
ext4_es_insert_delayed_block(), e.g., ENOMEM, it does not release the
space it has reserved for that block insertion as it should. One effect
of this bug is that s_dirtyclusters_counter is not decremented and
remains incorrectly elevated until the file system has been unmounted.
This can result in premature ENOSPC returns and apparent loss of free
space.

Another effect of this bug is that
/sys/fs/ext4/<dev>/delayed_allocation_blocks can remain non-zero even
after syncfs has been executed on the filesystem.

Besides, add check for s_dirtyclusters_counter when inode is going to be
evicted and freed. s_dirtyclusters_counter can still keep non-zero until
inode is written back in .evict_inode(), and thus the check is delayed
to .destroy_inode().

Fixes: 51865fda28e5 ("ext4: let ext4 maintain extent status tree")
Cc: stable@kernel.org
Suggested-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210823061358.84473-1-jefflexu@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/inode.c | 5 +++++
 fs/ext4/super.c | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 18a5321b5ef37..63a292db75877 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1641,6 +1641,7 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	int ret;
 	bool allocated = false;
+	bool reserved = false;
 
 	/*
 	 * If the cluster containing lblk is shared with a delayed,
@@ -1657,6 +1658,7 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
 		ret = ext4_da_reserve_space(inode);
 		if (ret != 0)   /* ENOSPC */
 			goto errout;
+		reserved = true;
 	} else {   /* bigalloc */
 		if (!ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk)) {
 			if (!ext4_es_scan_clu(inode,
@@ -1669,6 +1671,7 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
 					ret = ext4_da_reserve_space(inode);
 					if (ret != 0)   /* ENOSPC */
 						goto errout;
+					reserved = true;
 				} else {
 					allocated = true;
 				}
@@ -1679,6 +1682,8 @@ static int ext4_insert_delayed_block(struct inode *inode, ext4_lblk_t lblk)
 	}
 
 	ret = ext4_es_insert_delayed_block(inode, lblk, allocated);
+	if (ret && reserved)
+		ext4_da_release_space(inode, 1);
 
 errout:
 	return ret;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e5e896b6200ac..cbeb024296719 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1356,6 +1356,12 @@ static void ext4_destroy_inode(struct inode *inode)
 				true);
 		dump_stack();
 	}
+
+	if (EXT4_I(inode)->i_reserved_data_blocks)
+		ext4_msg(inode->i_sb, KERN_ERR,
+			 "Inode %lu (%p): i_reserved_data_blocks (%u) not cleared!",
+			 inode->i_ino, EXT4_I(inode),
+			 EXT4_I(inode)->i_reserved_data_blocks);
 }
 
 static void init_once(void *foo)
-- 
GitLab


From a63474dbf692dd09b50fed592bc41f6de5f102fc Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 2 Sep 2021 11:36:01 -0400
Subject: [PATCH 0131/4878] ext4: add error checking to
 ext4_ext_replay_set_iblocks()

commit 1fd95c05d8f742abfe906620780aee4dbe1a2db0 upstream.

If the call to ext4_map_blocks() fails due to an corrupted file
system, ext4_ext_replay_set_iblocks() can get stuck in an infinite
loop.  This could be reproduced by running generic/526 with a file
system that has inline_data and fast_commit enabled.  The system will
repeatedly log to the console:

EXT4-fs warning (device dm-3): ext4_block_to_path:105: block 1074800922 > max in inode 131076

and the stack that it gets stuck in is:

   ext4_block_to_path+0xe3/0x130
   ext4_ind_map_blocks+0x93/0x690
   ext4_map_blocks+0x100/0x660
   skip_hole+0x47/0x70
   ext4_ext_replay_set_iblocks+0x223/0x440
   ext4_fc_replay_inode+0x29e/0x3b0
   ext4_fc_replay+0x278/0x550
   do_one_pass+0x646/0xc10
   jbd2_journal_recover+0x14a/0x270
   jbd2_journal_load+0xc4/0x150
   ext4_load_journal+0x1f3/0x490
   ext4_fill_super+0x22d4/0x2c00

With this patch, generic/526 still fails, but system is no longer
locking up in a tight loop.  It's likely the root casue is that
fast_commit replay is corrupting file systems with inline_data, and we
probably need to add better error handling in the fast commit replay
code path beyond what is done here, which essentially just breaks the
infinite loop without reporting the to the higher levels of the code.

Fixes: 8016E29F4362 ("ext4: fast commit recovery path")
Cc: stable@kernel.org
Cc: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index e00a35530a4e0..aa4d74f9d1623 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5907,7 +5907,7 @@ void ext4_ext_replay_shrink_inode(struct inode *inode, ext4_lblk_t end)
 }
 
 /* Check if *cur is a hole and if it is, skip it */
-static void skip_hole(struct inode *inode, ext4_lblk_t *cur)
+static int skip_hole(struct inode *inode, ext4_lblk_t *cur)
 {
 	int ret;
 	struct ext4_map_blocks map;
@@ -5916,9 +5916,12 @@ static void skip_hole(struct inode *inode, ext4_lblk_t *cur)
 	map.m_len = ((inode->i_size) >> inode->i_sb->s_blocksize_bits) - *cur;
 
 	ret = ext4_map_blocks(NULL, inode, &map, 0);
+	if (ret < 0)
+		return ret;
 	if (ret != 0)
-		return;
+		return 0;
 	*cur = *cur + map.m_len;
+	return 0;
 }
 
 /* Count number of blocks used by this inode and update i_blocks */
@@ -5967,7 +5970,9 @@ int ext4_ext_replay_set_iblocks(struct inode *inode)
 	 * iblocks by total number of differences found.
 	 */
 	cur = 0;
-	skip_hole(inode, &cur);
+	ret = skip_hole(inode, &cur);
+	if (ret < 0)
+		goto out;
 	path = ext4_find_extent(inode, cur, NULL, 0);
 	if (IS_ERR(path))
 		goto out;
@@ -5986,8 +5991,12 @@ int ext4_ext_replay_set_iblocks(struct inode *inode)
 		}
 		cur = max(cur + 1, le32_to_cpu(ex->ee_block) +
 					ext4_ext_get_actual_len(ex));
-		skip_hole(inode, &cur);
-
+		ret = skip_hole(inode, &cur);
+		if (ret < 0) {
+			ext4_ext_drop_refs(path);
+			kfree(path);
+			break;
+		}
 		path2 = ext4_find_extent(inode, cur, NULL, 0);
 		if (IS_ERR(path2)) {
 			ext4_ext_drop_refs(path);
-- 
GitLab


From 3770e21f60fc29326a7f3febfa8adc9a3c2dde62 Mon Sep 17 00:00:00 2001
From: yangerkun <yangerkun@huawei.com>
Date: Tue, 14 Sep 2021 19:14:15 +0800
Subject: [PATCH 0132/4878] ext4: fix potential infinite loop in
 ext4_dx_readdir()

commit 42cb447410d024e9d54139ae9c21ea132a8c384c upstream.

When ext4_htree_fill_tree() fails, ext4_dx_readdir() can run into an
infinite loop since if info->last_pos != ctx->pos this will reset the
directory scan and reread the failing entry.  For example:

1. a dx_dir which has 3 block, block 0 as dx_root block, block 1/2 as
   leaf block which own the ext4_dir_entry_2
2. block 1 read ok and call_filldir which will fill the dirent and update
   the ctx->pos
3. block 2 read fail, but we has already fill some dirent, so we will
   return back to userspace will a positive return val(see ksys_getdents64)
4. the second ext4_dx_readdir will reset the world since info->last_pos
   != ctx->pos, and will also init the curr_hash which pos to block 1
5. So we will read block1 too, and once block2 still read fail, we can
   only fill one dirent because the hash of the entry in block1(besides
   the last one) won't greater than curr_hash
6. this time, we forget update last_pos too since the read for block2
   will fail, and since we has got the one entry, ksys_getdents64 can
   return success
7. Latter we will trapped in a loop with step 4~6

Cc: stable@kernel.org
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210914111415.3921954-1-yangerkun@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/dir.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index ca50c90adc4c4..70a0f5e56f4d5 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -534,7 +534,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
 	struct dir_private_info *info = file->private_data;
 	struct inode *inode = file_inode(file);
 	struct fname *fname;
-	int	ret;
+	int ret = 0;
 
 	if (!info) {
 		info = ext4_htree_create_dir_info(file, ctx->pos);
@@ -582,7 +582,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
 						   info->curr_minor_hash,
 						   &info->next_hash);
 			if (ret < 0)
-				return ret;
+				goto finished;
 			if (ret == 0) {
 				ctx->pos = ext4_get_htree_eof(file);
 				break;
@@ -613,7 +613,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
 	}
 finished:
 	info->last_pos = ctx->pos;
-	return 0;
+	return ret < 0 ? ret : 0;
 }
 
 static int ext4_dir_open(struct inode * inode, struct file * filp)
-- 
GitLab


From a7f4c633ae120562e91a0891101ed44eaa6c6d1e Mon Sep 17 00:00:00 2001
From: Andrej Shadura <andrew.shadura@collabora.co.uk>
Date: Thu, 16 Sep 2021 17:33:11 +0100
Subject: [PATCH 0133/4878] HID: u2fzero: ignore incomplete packets without
 data

commit 22d65765f211cc83186fd8b87521159f354c0da9 upstream.

Since the actual_length calculation is performed unsigned, packets
shorter than 7 bytes (e.g. packets without data or otherwise truncated)
or non-received packets ("zero" bytes) can cause buffer overflow.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=214437
Fixes: 42337b9d4d958("HID: add driver for U2F Zero built-in LED and RNG")
Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-u2fzero.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-u2fzero.c b/drivers/hid/hid-u2fzero.c
index 95e0807878c7e..d70cd3d7f583b 100644
--- a/drivers/hid/hid-u2fzero.c
+++ b/drivers/hid/hid-u2fzero.c
@@ -198,7 +198,9 @@ static int u2fzero_rng_read(struct hwrng *rng, void *data,
 	}
 
 	ret = u2fzero_recv(dev, &req, &resp);
-	if (ret < 0)
+
+	/* ignore errors or packets without data */
+	if (ret < offsetof(struct u2f_hid_msg, init.data))
 		return 0;
 
 	/* only take the minimum amount of data it is safe to take */
-- 
GitLab


From 5c3a90b6ff75c18d9c8e1701b3b9b56580acfc61 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 27 Sep 2021 17:29:24 -0700
Subject: [PATCH 0134/4878] net: udp: annotate data race around
 udp_sk(sk)->corkflag

commit a9f5970767d11eadc805d5283f202612c7ba1f59 upstream.

up->corkflag field can be read or written without any lock.
Annotate accesses to avoid possible syzbot/KCSAN reports.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/udp.c | 10 +++++-----
 net/ipv6/udp.c |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index e73312546c5a1..bd7fd9b1f24c8 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1035,7 +1035,7 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	__be16 dport;
 	u8  tos;
 	int err, is_udplite = IS_UDPLITE(sk);
-	int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
+	int corkreq = READ_ONCE(up->corkflag) || msg->msg_flags&MSG_MORE;
 	int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
 	struct sk_buff *skb;
 	struct ip_options_data opt_copy;
@@ -1343,7 +1343,7 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
 	}
 
 	up->len += size;
-	if (!(up->corkflag || (flags&MSG_MORE)))
+	if (!(READ_ONCE(up->corkflag) || (flags&MSG_MORE)))
 		ret = udp_push_pending_frames(sk);
 	if (!ret)
 		ret = size;
@@ -2609,9 +2609,9 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
 	switch (optname) {
 	case UDP_CORK:
 		if (val != 0) {
-			up->corkflag = 1;
+			WRITE_ONCE(up->corkflag, 1);
 		} else {
-			up->corkflag = 0;
+			WRITE_ONCE(up->corkflag, 0);
 			lock_sock(sk);
 			push_pending_frames(sk);
 			release_sock(sk);
@@ -2734,7 +2734,7 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname,
 
 	switch (optname) {
 	case UDP_CORK:
-		val = up->corkflag;
+		val = READ_ONCE(up->corkflag);
 		break;
 
 	case UDP_ENCAP:
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index a448b6cd47273..1943ae5103eb6 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1288,7 +1288,7 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 	int addr_len = msg->msg_namelen;
 	bool connected = false;
 	int ulen = len;
-	int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
+	int corkreq = READ_ONCE(up->corkflag) || msg->msg_flags&MSG_MORE;
 	int err;
 	int is_udplite = IS_UDPLITE(sk);
 	int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
-- 
GitLab


From 4ad4852b9adf1345561c202569fe88b0af21eabf Mon Sep 17 00:00:00 2001
From: Shuming Fan <shumingf@realtek.com>
Date: Mon, 8 Feb 2021 17:40:42 -0600
Subject: [PATCH 0135/4878] ASoC: dapm: use component prefix when checking
 widget names

commit ae4fc532244b3bb4d86c397418d980b0c6be1dfd upstream.

On a TigerLake SoundWire platform, we see these warnings:

[   27.360086] rt5682 sdw:0:25d:5682:0: ASoC: DAPM unknown pin MICBIAS
[   27.360092] rt5682 sdw:0:25d:5682:0: ASoC: DAPM unknown pin Vref2

This is root-caused to the addition of a component prefix in the
machine driver. The tests in soc-dapm should account for a prefix
instead of reporting an invalid issue.

Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210208234043.59750-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Robert Lee <lerobert@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-dapm.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 148c095df27b1..f4b380d6aecf8 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2528,9 +2528,20 @@ static struct snd_soc_dapm_widget *dapm_find_widget(
 {
 	struct snd_soc_dapm_widget *w;
 	struct snd_soc_dapm_widget *fallback = NULL;
+	char prefixed_pin[80];
+	const char *pin_name;
+	const char *prefix = soc_dapm_prefix(dapm);
+
+	if (prefix) {
+		snprintf(prefixed_pin, sizeof(prefixed_pin), "%s %s",
+			 prefix, pin);
+		pin_name = prefixed_pin;
+	} else {
+		pin_name = pin;
+	}
 
 	for_each_card_widgets(dapm->card, w) {
-		if (!strcmp(w->name, pin)) {
+		if (!strcmp(w->name, pin_name)) {
 			if (w->dapm == dapm)
 				return w;
 			else
-- 
GitLab


From 28f0fdbac0f52c411763a6bbc475b0643a5d8d28 Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Wed, 21 Jul 2021 16:14:57 +0800
Subject: [PATCH 0136/4878] usb: hso: remove the bailout parameter

commit dcb713d53e2eadf42b878c12a471e74dc6ed3145 upstream.

There are two invocation sites of hso_free_net_device. After
refactoring hso_create_net_device, this parameter is useless.
Remove the bailout in the hso_free_net_device and change the invocation
sites of this function.

Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[Backport this cleanup patch to 5.10 and 5.14 in order to keep the
codebase consistent with the 4.14/4.19/5.4 patchseries]
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/hso.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index df8d4c1e5be74..db484215a78c8 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2354,7 +2354,7 @@ static int remove_net_device(struct hso_device *hso_dev)
 }
 
 /* Frees our network device */
-static void hso_free_net_device(struct hso_device *hso_dev, bool bailout)
+static void hso_free_net_device(struct hso_device *hso_dev)
 {
 	int i;
 	struct hso_net *hso_net = dev2net(hso_dev);
@@ -2377,7 +2377,7 @@ static void hso_free_net_device(struct hso_device *hso_dev, bool bailout)
 	kfree(hso_net->mux_bulk_tx_buf);
 	hso_net->mux_bulk_tx_buf = NULL;
 
-	if (hso_net->net && !bailout)
+	if (hso_net->net)
 		free_netdev(hso_net->net);
 
 	kfree(hso_dev);
@@ -3137,7 +3137,7 @@ static void hso_free_interface(struct usb_interface *interface)
 				rfkill_unregister(rfk);
 				rfkill_destroy(rfk);
 			}
-			hso_free_net_device(network_table[i], false);
+			hso_free_net_device(network_table[i]);
 		}
 	}
 }
-- 
GitLab


From 17ccc64e4fa5d3673528474bfeda814d95dc600a Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 26 Aug 2021 16:04:27 +0300
Subject: [PATCH 0137/4878] crypto: ccp - fix resource leaks in
 ccp_run_aes_gcm_cmd()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 505d9dcb0f7ddf9d075e729523a33d38642ae680 upstream.

There are three bugs in this code:

1) If we ccp_init_data() fails for &src then we need to free aad.
   Use goto e_aad instead of goto e_ctx.
2) The label to free the &final_wa was named incorrectly as "e_tag" but
   it should have been "e_final_wa".  One error path leaked &final_wa.
3) The &tag was leaked on one error path.  In that case, I added a free
   before the goto because the resource was local to that block.

Fixes: 36cf515b9bbe ("crypto: ccp - Enable support for AES GCM on v5 CCPs")
Reported-by: "minihanshen(沈明航)" <minihanshen@tencent.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: John Allen <john.allen@amd.com>
Tested-by: John Allen <john.allen@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/ccp/ccp-ops.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index d6a8f4e4b14a8..c15625e8ff66e 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -778,7 +778,7 @@ ccp_run_aes_gcm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
 				    in_place ? DMA_BIDIRECTIONAL
 					     : DMA_TO_DEVICE);
 		if (ret)
-			goto e_ctx;
+			goto e_aad;
 
 		if (in_place) {
 			dst = src;
@@ -863,7 +863,7 @@ ccp_run_aes_gcm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
 	op.u.aes.size = 0;
 	ret = cmd_q->ccp->vdata->perform->aes(&op);
 	if (ret)
-		goto e_dst;
+		goto e_final_wa;
 
 	if (aes->action == CCP_AES_ACTION_ENCRYPT) {
 		/* Put the ciphered tag after the ciphertext. */
@@ -873,17 +873,19 @@ ccp_run_aes_gcm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
 		ret = ccp_init_dm_workarea(&tag, cmd_q, authsize,
 					   DMA_BIDIRECTIONAL);
 		if (ret)
-			goto e_tag;
+			goto e_final_wa;
 		ret = ccp_set_dm_area(&tag, 0, p_tag, 0, authsize);
-		if (ret)
-			goto e_tag;
+		if (ret) {
+			ccp_dm_free(&tag);
+			goto e_final_wa;
+		}
 
 		ret = crypto_memneq(tag.address, final_wa.address,
 				    authsize) ? -EBADMSG : 0;
 		ccp_dm_free(&tag);
 	}
 
-e_tag:
+e_final_wa:
 	ccp_dm_free(&final_wa);
 
 e_dst:
-- 
GitLab


From dedfc35a2de2bae9fa3da8210a05bfd515f83fee Mon Sep 17 00:00:00 2001
From: "F.A.Sulaiman" <asha.16@itfac.mrt.ac.lk>
Date: Tue, 24 Aug 2021 20:37:30 +0530
Subject: [PATCH 0138/4878] HID: betop: fix slab-out-of-bounds Write in
 betop_probe

commit 1e4ce418b1cb1a810256b5fb3fd33d22d1325993 upstream.

Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver.
The problem is the driver assumes the device must have an input report but
some malicious devices violate this assumption.

So this patch checks hid_device's input is non empty before it's been used.

Reported-by: syzbot+07efed3bc5a1407bd742@syzkaller.appspotmail.com
Signed-off-by: F.A. SULAIMAN <asha.16@itfac.mrt.ac.lk>
Reviewed-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-betopff.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c
index 0790fbd3fc9a2..467d789f9bc2d 100644
--- a/drivers/hid/hid-betopff.c
+++ b/drivers/hid/hid-betopff.c
@@ -56,15 +56,22 @@ static int betopff_init(struct hid_device *hid)
 {
 	struct betopff_device *betopff;
 	struct hid_report *report;
-	struct hid_input *hidinput =
-			list_first_entry(&hid->inputs, struct hid_input, list);
+	struct hid_input *hidinput;
 	struct list_head *report_list =
 			&hid->report_enum[HID_OUTPUT_REPORT].report_list;
-	struct input_dev *dev = hidinput->input;
+	struct input_dev *dev;
 	int field_count = 0;
 	int error;
 	int i, j;
 
+	if (list_empty(&hid->inputs)) {
+		hid_err(hid, "no inputs found\n");
+		return -ENODEV;
+	}
+
+	hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
+	dev = hidinput->input;
+
 	if (list_empty(report_list)) {
 		hid_err(hid, "no output reports found\n");
 		return -ENODEV;
-- 
GitLab


From da5b8b9319f044c2ca24f6602c54033931e0c1cc Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@netfilter.org>
Date: Mon, 6 Sep 2021 18:26:34 +0200
Subject: [PATCH 0139/4878] netfilter: ipset: Fix oversized kvmalloc() calls

commit 7bbc3d385bd813077acaf0e6fdb2a86a901f5382 upstream.

The commit

commit 7661809d493b426e979f39ab512e3adf41fbcc69
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Wed Jul 14 09:45:49 2021 -0700

    mm: don't allow oversized kvmalloc() calls

limits the max allocatable memory via kvmalloc() to MAX_INT. Apply the
same limit in ipset.

Reported-by: syzbot+3493b1873fb3ea827986@syzkaller.appspotmail.com
Reported-by: syzbot+2b8443c35458a617c904@syzkaller.appspotmail.com
Reported-by: syzbot+ee5cb15f4a0e85e0d54e@syzkaller.appspotmail.com
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/ipset/ip_set_hash_gen.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 7cd1d31fb2b88..b0670388da49a 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -132,11 +132,11 @@ htable_size(u8 hbits)
 {
 	size_t hsize;
 
-	/* We must fit both into u32 in jhash and size_t */
+	/* We must fit both into u32 in jhash and INT_MAX in kvmalloc_node() */
 	if (hbits > 31)
 		return 0;
 	hsize = jhash_size(hbits);
-	if ((((size_t)-1) - sizeof(struct htable)) / sizeof(struct hbucket *)
+	if ((INT_MAX - sizeof(struct htable)) / sizeof(struct hbucket *)
 	    < hsize)
 		return 0;
 
-- 
GitLab


From 57a269a1b12a3a6fe51f62e1be5e74494bad1d92 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 14 Jul 2021 09:45:49 -0700
Subject: [PATCH 0140/4878] mm: don't allow oversized kvmalloc() calls

commit 7661809d493b426e979f39ab512e3adf41fbcc69 upstream.

'kvmalloc()' is a convenience function for people who want to do a
kmalloc() but fall back on vmalloc() if there aren't enough physically
contiguous pages, or if the allocation is larger than what kmalloc()
supports.

However, let's make sure it doesn't get _too_ easy to do crazy things
with it.  In particular, don't allow big allocations that could be due
to integer overflow or underflow.  So make sure the allocation size fits
in an 'int', to protect against trivial integer conversion issues.

Acked-by: Willy Tarreau <w@1wt.eu>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/util.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mm/util.c b/mm/util.c
index d5be677718500..90792e4eaa252 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -581,6 +581,10 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
 	if (ret || size <= PAGE_SIZE)
 		return ret;
 
+	/* Don't even allow crazy sizes */
+	if (WARN_ON_ONCE(size > INT_MAX))
+		return NULL;
+
 	return __vmalloc_node(size, 1, flags, node,
 			__builtin_return_address(0));
 }
-- 
GitLab


From f7ac4d24e1610b92689946fa88177673f1e88a3f Mon Sep 17 00:00:00 2001
From: Anirudh Rayabharam <mail@anirudhrb.com>
Date: Thu, 24 Jun 2021 00:10:29 +0530
Subject: [PATCH 0141/4878] HID: usbhid: free raw_report buffers in usbhid_stop

commit f7744fa16b96da57187dc8e5634152d3b63d72de upstream.

Free the unsent raw_report buffers when the device is removed.

Fixes a memory leak reported by syzbot at:
https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47

Reported-by: syzbot+47b26cd837ececfc666d@syzkaller.appspotmail.com
Tested-by: syzbot+47b26cd837ececfc666d@syzkaller.appspotmail.com
Signed-off-by: Anirudh Rayabharam <mail@anirudhrb.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/usbhid/hid-core.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 8d4ac4b9fb9da..009a0469d54f6 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -503,7 +503,7 @@ static void hid_ctrl(struct urb *urb)
 
 	if (unplug) {
 		usbhid->ctrltail = usbhid->ctrlhead;
-	} else {
+	} else if (usbhid->ctrlhead != usbhid->ctrltail) {
 		usbhid->ctrltail = (usbhid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
 
 		if (usbhid->ctrlhead != usbhid->ctrltail &&
@@ -1221,9 +1221,20 @@ static void usbhid_stop(struct hid_device *hid)
 	mutex_lock(&usbhid->mutex);
 
 	clear_bit(HID_STARTED, &usbhid->iofl);
+
 	spin_lock_irq(&usbhid->lock);	/* Sync with error and led handlers */
 	set_bit(HID_DISCONNECTED, &usbhid->iofl);
+	while (usbhid->ctrltail != usbhid->ctrlhead) {
+		if (usbhid->ctrl[usbhid->ctrltail].dir == USB_DIR_OUT) {
+			kfree(usbhid->ctrl[usbhid->ctrltail].raw_report);
+			usbhid->ctrl[usbhid->ctrltail].raw_report = NULL;
+		}
+
+		usbhid->ctrltail = (usbhid->ctrltail + 1) &
+			(HID_CONTROL_FIFO_SIZE - 1);
+	}
 	spin_unlock_irq(&usbhid->lock);
+
 	usb_kill_urb(usbhid->urbin);
 	usb_kill_urb(usbhid->urbout);
 	usb_kill_urb(usbhid->urbctrl);
-- 
GitLab


From deb2949417677649e2413266d7ce8c2ff73952b4 Mon Sep 17 00:00:00 2001
From: Haimin Zhang <tcs_kernel@tencent.com>
Date: Fri, 3 Sep 2021 10:37:06 +0800
Subject: [PATCH 0142/4878] KVM: x86: Handle SRCU initialization failure during
 page track init

commit eb7511bf9182292ef1df1082d23039e856d1ddfb upstream.

Check the return of init_srcu_struct(), which can fail due to OOM, when
initializing the page track mechanism.  Lack of checking leads to a NULL
pointer deref found by a modified syzkaller.

Reported-by: TCS Robot <tcs_robot@tencent.com>
Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com>
Message-Id: <1630636626-12262-1-git-send-email-tcs_kernel@tencent.com>
[Move the call towards the beginning of kvm_arch_init_vm. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/kvm_page_track.h | 2 +-
 arch/x86/kvm/mmu/page_track.c         | 4 ++--
 arch/x86/kvm/x86.c                    | 7 ++++++-
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/kvm_page_track.h b/arch/x86/include/asm/kvm_page_track.h
index 87bd6025d91d4..6a5f3acf2b331 100644
--- a/arch/x86/include/asm/kvm_page_track.h
+++ b/arch/x86/include/asm/kvm_page_track.h
@@ -46,7 +46,7 @@ struct kvm_page_track_notifier_node {
 			    struct kvm_page_track_notifier_node *node);
 };
 
-void kvm_page_track_init(struct kvm *kvm);
+int kvm_page_track_init(struct kvm *kvm);
 void kvm_page_track_cleanup(struct kvm *kvm);
 
 void kvm_page_track_free_memslot(struct kvm_memory_slot *slot);
diff --git a/arch/x86/kvm/mmu/page_track.c b/arch/x86/kvm/mmu/page_track.c
index 8443a675715b0..81cf4babbd0b4 100644
--- a/arch/x86/kvm/mmu/page_track.c
+++ b/arch/x86/kvm/mmu/page_track.c
@@ -163,13 +163,13 @@ void kvm_page_track_cleanup(struct kvm *kvm)
 	cleanup_srcu_struct(&head->track_srcu);
 }
 
-void kvm_page_track_init(struct kvm *kvm)
+int kvm_page_track_init(struct kvm *kvm)
 {
 	struct kvm_page_track_notifier_head *head;
 
 	head = &kvm->arch.track_notifier_head;
-	init_srcu_struct(&head->track_srcu);
 	INIT_HLIST_HEAD(&head->track_notifier_list);
+	return init_srcu_struct(&head->track_srcu);
 }
 
 /*
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 75c59ad27e9fd..d65da3b5837b2 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -10392,9 +10392,15 @@ void kvm_arch_free_vm(struct kvm *kvm)
 
 int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 {
+	int ret;
+
 	if (type)
 		return -EINVAL;
 
+	ret = kvm_page_track_init(kvm);
+	if (ret)
+		return ret;
+
 	INIT_HLIST_HEAD(&kvm->arch.mask_notifier_list);
 	INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
 	INIT_LIST_HEAD(&kvm->arch.zapped_obsolete_pages);
@@ -10421,7 +10427,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn);
 
 	kvm_hv_init_vm(kvm);
-	kvm_page_track_init(kvm);
 	kvm_mmu_init_vm(kvm);
 
 	return kvm_x86_ops.vm_init(kvm);
-- 
GitLab


From e2d192301a0df8160d1555b66ae8611e8050e424 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 17 Sep 2021 15:15:56 -0700
Subject: [PATCH 0143/4878] netfilter: conntrack: serialize hash resizes and
 cleanups

commit e9edc188fc76499b0b9bd60364084037f6d03773 upstream.

Syzbot was able to trigger the following warning [1]

No repro found by syzbot yet but I was able to trigger similar issue
by having 2 scripts running in parallel, changing conntrack hash sizes,
and:

for j in `seq 1 1000` ; do unshare -n /bin/true >/dev/null ; done

It would take more than 5 minutes for net_namespace structures
to be cleaned up.

This is because nf_ct_iterate_cleanup() has to restart everytime
a resize happened.

By adding a mutex, we can serialize hash resizes and cleanups
and also make get_next_corpse() faster by skipping over empty
buckets.

Even without resizes in the picture, this patch considerably
speeds up network namespace dismantles.

[1]
INFO: task syz-executor.0:8312 can't die for more than 144 seconds.
task:syz-executor.0  state:R  running task     stack:25672 pid: 8312 ppid:  6573 flags:0x00004006
Call Trace:
 context_switch kernel/sched/core.c:4955 [inline]
 __schedule+0x940/0x26f0 kernel/sched/core.c:6236
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6408
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 __local_bh_enable_ip+0x109/0x120 kernel/softirq.c:390
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 get_next_corpse net/netfilter/nf_conntrack_core.c:2252 [inline]
 nf_ct_iterate_cleanup+0x15a/0x450 net/netfilter/nf_conntrack_core.c:2275
 nf_conntrack_cleanup_net_list+0x14c/0x4f0 net/netfilter/nf_conntrack_core.c:2469
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
 setup_net+0x639/0xa30 net/core/net_namespace.c:349
 copy_net_ns+0x319/0x760 net/core/net_namespace.c:470
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:226
 ksys_unshare+0x445/0x920 kernel/fork.c:3128
 __do_sys_unshare kernel/fork.c:3202 [inline]
 __se_sys_unshare kernel/fork.c:3200 [inline]
 __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3200
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f63da68e739
RSP: 002b:00007f63d7c05188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f63da792f80 RCX: 00007f63da68e739
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f63da6e8cc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f63da792f80
R13: 00007fff50b75d3f R14: 00007f63d7c05300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8b980020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446
2 locks held by kworker/u4:2/153:
 #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
 #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
 #0: ffff888010c69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2268
 #1: ffffc9000140fdb0 ((kfence_timer).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2272
1 lock held by systemd-udevd/2970:
1 lock held by in:imklog/6258:
 #0: ffff88807f970ff0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
3 locks held by kworker/1:6/8158:
1 lock held by syz-executor.0/8312:
2 locks held by kworker/u4:13/9320:
1 lock held by syz-executor.5/10178:
1 lock held by syz-executor.4/10217:

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nf_conntrack_core.c | 70 ++++++++++++++++---------------
 1 file changed, 37 insertions(+), 33 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 54430a34d2f64..6a66e99459351 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -75,6 +75,9 @@ static __read_mostly struct kmem_cache *nf_conntrack_cachep;
 static DEFINE_SPINLOCK(nf_conntrack_locks_all_lock);
 static __read_mostly bool nf_conntrack_locks_all;
 
+/* serialize hash resizes and nf_ct_iterate_cleanup */
+static DEFINE_MUTEX(nf_conntrack_mutex);
+
 #define GC_SCAN_INTERVAL	(120u * HZ)
 #define GC_SCAN_MAX_DURATION	msecs_to_jiffies(10)
 
@@ -2173,28 +2176,31 @@ get_next_corpse(int (*iter)(struct nf_conn *i, void *data),
 	spinlock_t *lockp;
 
 	for (; *bucket < nf_conntrack_htable_size; (*bucket)++) {
+		struct hlist_nulls_head *hslot = &nf_conntrack_hash[*bucket];
+
+		if (hlist_nulls_empty(hslot))
+			continue;
+
 		lockp = &nf_conntrack_locks[*bucket % CONNTRACK_LOCKS];
 		local_bh_disable();
 		nf_conntrack_lock(lockp);
-		if (*bucket < nf_conntrack_htable_size) {
-			hlist_nulls_for_each_entry(h, n, &nf_conntrack_hash[*bucket], hnnode) {
-				if (NF_CT_DIRECTION(h) != IP_CT_DIR_REPLY)
-					continue;
-				/* All nf_conn objects are added to hash table twice, one
-				 * for original direction tuple, once for the reply tuple.
-				 *
-				 * Exception: In the IPS_NAT_CLASH case, only the reply
-				 * tuple is added (the original tuple already existed for
-				 * a different object).
-				 *
-				 * We only need to call the iterator once for each
-				 * conntrack, so we just use the 'reply' direction
-				 * tuple while iterating.
-				 */
-				ct = nf_ct_tuplehash_to_ctrack(h);
-				if (iter(ct, data))
-					goto found;
-			}
+		hlist_nulls_for_each_entry(h, n, hslot, hnnode) {
+			if (NF_CT_DIRECTION(h) != IP_CT_DIR_REPLY)
+				continue;
+			/* All nf_conn objects are added to hash table twice, one
+			 * for original direction tuple, once for the reply tuple.
+			 *
+			 * Exception: In the IPS_NAT_CLASH case, only the reply
+			 * tuple is added (the original tuple already existed for
+			 * a different object).
+			 *
+			 * We only need to call the iterator once for each
+			 * conntrack, so we just use the 'reply' direction
+			 * tuple while iterating.
+			 */
+			ct = nf_ct_tuplehash_to_ctrack(h);
+			if (iter(ct, data))
+				goto found;
 		}
 		spin_unlock(lockp);
 		local_bh_enable();
@@ -2212,26 +2218,20 @@ found:
 static void nf_ct_iterate_cleanup(int (*iter)(struct nf_conn *i, void *data),
 				  void *data, u32 portid, int report)
 {
-	unsigned int bucket = 0, sequence;
+	unsigned int bucket = 0;
 	struct nf_conn *ct;
 
 	might_sleep();
 
-	for (;;) {
-		sequence = read_seqcount_begin(&nf_conntrack_generation);
-
-		while ((ct = get_next_corpse(iter, data, &bucket)) != NULL) {
-			/* Time to push up daises... */
+	mutex_lock(&nf_conntrack_mutex);
+	while ((ct = get_next_corpse(iter, data, &bucket)) != NULL) {
+		/* Time to push up daises... */
 
-			nf_ct_delete(ct, portid, report);
-			nf_ct_put(ct);
-			cond_resched();
-		}
-
-		if (!read_seqcount_retry(&nf_conntrack_generation, sequence))
-			break;
-		bucket = 0;
+		nf_ct_delete(ct, portid, report);
+		nf_ct_put(ct);
+		cond_resched();
 	}
+	mutex_unlock(&nf_conntrack_mutex);
 }
 
 struct iter_data {
@@ -2461,8 +2461,10 @@ int nf_conntrack_hash_resize(unsigned int hashsize)
 	if (!hash)
 		return -ENOMEM;
 
+	mutex_lock(&nf_conntrack_mutex);
 	old_size = nf_conntrack_htable_size;
 	if (old_size == hashsize) {
+		mutex_unlock(&nf_conntrack_mutex);
 		kvfree(hash);
 		return 0;
 	}
@@ -2498,6 +2500,8 @@ int nf_conntrack_hash_resize(unsigned int hashsize)
 	nf_conntrack_all_unlock();
 	local_bh_enable();
 
+	mutex_unlock(&nf_conntrack_mutex);
+
 	synchronize_net();
 	kvfree(old_hash);
 	return 0;
-- 
GitLab


From 96f439a7eda6e80b1f45a97da7d3020b259b04a4 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 13 Sep 2021 20:38:52 +0200
Subject: [PATCH 0144/4878] netfilter: nf_tables: Fix oversized kvmalloc()
 calls

commit 45928afe94a094bcda9af858b96673d59bc4a0e9 upstream.

The commit 7661809d493b ("mm: don't allow oversized kvmalloc() calls")
limits the max allocatable memory via kvmalloc() to MAX_INT.

Reported-by: syzbot+cd43695a64bcd21b8596@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nf_tables_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index c605a3e713e76..b781ba97c474e 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -4265,7 +4265,7 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
 	if (ops->privsize != NULL)
 		size = ops->privsize(nla, &desc);
 	alloc_size = sizeof(*set) + size + udlen;
-	if (alloc_size < size)
+	if (alloc_size < size || alloc_size > INT_MAX)
 		return -ENOMEM;
 	set = kvzalloc(alloc_size, GFP_KERNEL);
 	if (!set)
-- 
GitLab


From 5cd40b137cba45a5a3d0b9a8554f779a3e0e93b4 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 6 Oct 2021 15:56:04 +0200
Subject: [PATCH 0145/4878] Linux 5.10.71

Link: https://lore.kernel.org/r/20211004125034.579439135@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211005083301.812942169@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: SSalvatore Bonaccorso <carnil@debian.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 4a9541a18618b..1637ff7c1b751 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 70
+SUBLEVEL = 71
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 9e60632924655dec59521f346cfd114229438524 Mon Sep 17 00:00:00 2001
From: David Kimmel <davidkimmel@google.com>
Date: Wed, 6 Oct 2021 17:22:55 +0000
Subject: [PATCH 0146/4878] ANDROID: GKI: Update the ABI symbol list

Expose param_get_int/param_set_int for module use

Bug: 202230809
Change-Id: I5b1daa38a04024783c52881d14ef460b18da3dbc
Signed-off-by: David Kimmel <davidkimmel@google.com>
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index a7e607d94a38f..c15760dce6892 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1224,6 +1224,7 @@
   panic
   panic_notifier_list
   param_array_ops
+  param_get_int
   param_ops_bool
   param_ops_byte
   param_ops_charp
@@ -1232,6 +1233,7 @@
   param_ops_string
   param_ops_uint
   param_ops_ulong
+  param_set_int
   pause_cpus
   pci_alloc_irq_vectors_affinity
   pci_assign_resource
-- 
GitLab


From 5e40c6100df466c791220a7b63e7bdfbfc99f370 Mon Sep 17 00:00:00 2001
From: Akilesh Kailash <akailash@google.com>
Date: Mon, 13 Sep 2021 09:26:42 +0000
Subject: [PATCH 0147/4878] FROMLIST: dm-verity: skip verity_handle_error on
 I/O errors

If there is an I/O error and FEC correction fails, return
an error instead of calling verity_handle_error().

Suggested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Akilesh Kailash <akailash@google.com>

Bug: 197830746
Change-Id: Idd5f65bb72c78a1cca44e5593e40880b2408b564
Link: https://lore.kernel.org/all/20210913092642.3237796-1-akailash@google.com/
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
(cherry picked from commit fca745e32dfec052ecc04431f0ca58d49cce8e94)
---
 drivers/md/dm-verity-target.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 808a98ef624c3..9d5c6dd5b7564 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -475,6 +475,7 @@ static int verity_verify_io(struct dm_verity_io *io)
 	struct bvec_iter start;
 	unsigned b;
 	struct crypto_wait wait;
+	struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size);
 
 	for (b = 0; b < io->n_blocks; b++) {
 		int r;
@@ -529,9 +530,17 @@ static int verity_verify_io(struct dm_verity_io *io)
 		else if (verity_fec_decode(v, io, DM_VERITY_BLOCK_TYPE_DATA,
 					   cur_block, NULL, &start) == 0)
 			continue;
-		else if (verity_handle_err(v, DM_VERITY_BLOCK_TYPE_DATA,
+		else {
+			if (bio->bi_status) {
+				/*
+				 * Error correction failed; Just return error
+				 */
+				return -EIO;
+			}
+			if (verity_handle_err(v, DM_VERITY_BLOCK_TYPE_DATA,
 					   cur_block))
-			return -EIO;
+				return -EIO;
+		}
 	}
 
 	return 0;
-- 
GitLab


From 5530b97f9ea42de09b5222cdfed1bfa5816310a8 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 30 Sep 2021 11:12:50 -0700
Subject: [PATCH 0148/4878] BACKPORT: FROMGIT: scsi: ufs: core: Retry
 START_STOP on UNIT_ATTENTION

Commit 57d104c153d3 ("ufs: add UFS power management support") made the UFS
driver submit a REQUEST SENSE command before submitting a power management
command to a WLUN to clear the POWER ON unit attention. Instead of
submitting a REQUEST SENSE command before submitting a power management
command, retry the power management command until it succeeds.

This is the preparation to get rid of all UNIT ATTENTION code which should
be handled by users.

Bug: 194712579
Link: https://lore.kernel.org/r/20211001182015.1347587-2-jaegeuk@kernel.org
(cherry picked from commit af21c3fd5b3ec540a97b367a70b26616ff7e0c55
    git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I7e639d89ae9fbd5ff0f1b3a6e5cbe77682ebefc0
---
 drivers/scsi/ufs/ufshcd.c | 12 +++++++++---
 include/scsi/scsi.h       | 15 +++++++++++++++
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 07a5f5f3c2050..a63174e59a085 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8571,7 +8571,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 	struct scsi_sense_hdr sshdr;
 	struct scsi_device *sdp;
 	unsigned long flags;
-	int ret;
+	int ret, retries;
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	sdp = hba->sdev_ufs_device;
@@ -8605,8 +8605,14 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 	 * callbacks hence set the RQF_PM flag so that it doesn't resume the
 	 * already suspended childs.
 	 */
-	ret = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr,
-			START_STOP_TIMEOUT, 0, 0, RQF_PM, NULL);
+	for (retries = 3; retries > 0; --retries) {
+		ret = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr,
+				START_STOP_TIMEOUT, 0, 0, RQF_PM, NULL);
+		if (!scsi_status_is_check_condition(ret) ||
+				!scsi_sense_valid(&sshdr) ||
+				sshdr.sense_key != UNIT_ATTENTION)
+			break;
+	}
 	if (ret) {
 		sdev_printk(KERN_WARNING, sdp,
 			    "START_STOP failed for power mode: %d, result %x\n",
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 5339baadc082e..ef3345119b29a 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -88,6 +88,21 @@ static inline int scsi_is_wlun(u64 lun)
 	return (lun & 0xff00) == SCSI_W_LUN_BASE;
 }
 
+/**
+ * scsi_status_is_check_condition - check the status return.
+ *
+ * @status: the status passed up from the driver (including host and
+ *          driver components)
+ *
+ * This returns true if the status code is SAM_STAT_CHECK_CONDITION.
+ */
+static inline int scsi_status_is_check_condition(int status)
+{
+	if (status < 0)
+		return false;
+	status &= 0xfe;
+	return status == SAM_STAT_CHECK_CONDITION;
+}
 
 /*
  *  MESSAGE CODES
-- 
GitLab


From 7b92323fdd66532a4c65ee58c465549efbf913e1 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 23 Sep 2021 13:11:42 -0700
Subject: [PATCH 0149/4878] BACKPORT: FROMGIT: scsi: ufs: core: Stop clearing
 unit attentions

Commit aa53f580e67b ("scsi: ufs: Minor adjustments to error handling")
introduced a ufshcd_clear_ua_wluns() call in
ufshcd_err_handling_unprepare(). As explained in detail by Adrian Hunter,
this can trigger a deadlock. Avoid that deadlock by removing the code that
clears the unit attention. This is safe because the only software that
relies on clearing unit attentions is the Android Trusty software and
because support for handling unit attentions has been added in the Trusty software.

See also https://lore.kernel.org/linux-scsi/20210930124224.114031-2-adrian.hunter@intel.com/

Note that, should apply "scsi: ufs: retry START_STOP on UNIT_ATTENTION" before
this patch, since this patch gives UNIT ATTENTION to scsi_execute(START_STOP).

Bug: 194712579
(cherry picked from commit edc0596cc04bf0ac3a69c66e994d3ff8b650ff71
        git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Link: https://lore.kernel.org/r/20211001182015.1347587-3-jaegeuk@kernel.org
Fixes: aa53f580e67b ("scsi: ufs: Minor adjustments to error handling")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I73656b8b6773558dc7a552700d283c1ae6dc25f7
---
 drivers/scsi/ufs/ufshcd.c | 97 ---------------------------------------
 drivers/scsi/ufs/ufshcd.h |  2 -
 2 files changed, 99 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a63174e59a085..eac2d91c349de 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -225,7 +225,6 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba);
 static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd);
 static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag);
 static void ufshcd_hba_exit(struct ufs_hba *hba);
-static int ufshcd_clear_ua_wluns(struct ufs_hba *hba);
 static int ufshcd_probe_hba(struct ufs_hba *hba, bool async);
 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
 static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
@@ -4082,8 +4081,6 @@ int ufshcd_link_recovery(struct ufs_hba *hba)
 	if (ret)
 		dev_err(hba->dev, "%s: link recovery failed, err %d",
 			__func__, ret);
-	else
-		ufshcd_clear_ua_wluns(hba);
 
 	return ret;
 }
@@ -5941,7 +5938,6 @@ static void ufshcd_err_handling_unprepare(struct ufs_hba *hba)
 	ufshcd_release(hba);
 	if (ufshcd_is_clkscaling_supported(hba))
 		ufshcd_clk_scaling_suspend(hba, false);
-	ufshcd_clear_ua_wluns(hba);
 	pm_runtime_put(hba->dev);
 }
 
@@ -7862,8 +7858,6 @@ static int ufshcd_add_lus(struct ufs_hba *hba)
 	if (ret)
 		goto out;
 
-	ufshcd_clear_ua_wluns(hba);
-
 	/* Initialize devfreq after UFS device is detected */
 	if (ufshcd_is_clkscaling_supported(hba)) {
 		memcpy(&hba->clk_scaling.saved_pwr_info.info,
@@ -7889,63 +7883,6 @@ out:
 	return ret;
 }
 
-static int
-ufshcd_send_request_sense(struct ufs_hba *hba, struct scsi_device *sdp);
-
-static int ufshcd_clear_ua_wlun(struct ufs_hba *hba, u8 wlun)
-{
-	struct scsi_device *sdp;
-	unsigned long flags;
-	int ret = 0;
-
-	spin_lock_irqsave(hba->host->host_lock, flags);
-	if (wlun == UFS_UPIU_UFS_DEVICE_WLUN)
-		sdp = hba->sdev_ufs_device;
-	else if (wlun == UFS_UPIU_RPMB_WLUN)
-		sdp = hba->sdev_rpmb;
-	else
-		BUG();
-	if (sdp) {
-		ret = scsi_device_get(sdp);
-		if (!ret && !scsi_device_online(sdp)) {
-			ret = -ENODEV;
-			scsi_device_put(sdp);
-		}
-	} else {
-		ret = -ENODEV;
-	}
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
-	if (ret)
-		goto out_err;
-
-	ret = ufshcd_send_request_sense(hba, sdp);
-	scsi_device_put(sdp);
-out_err:
-	if (ret)
-		dev_err(hba->dev, "%s: UAC clear LU=%x ret = %d\n",
-				__func__, wlun, ret);
-	return ret;
-}
-
-static int ufshcd_clear_ua_wluns(struct ufs_hba *hba)
-{
-	int ret = 0;
-
-	if (!hba->wlun_dev_clr_ua)
-		goto out;
-
-	ret = ufshcd_clear_ua_wlun(hba, UFS_UPIU_UFS_DEVICE_WLUN);
-	if (!ret)
-		ret = ufshcd_clear_ua_wlun(hba, UFS_UPIU_RPMB_WLUN);
-	if (!ret)
-		hba->wlun_dev_clr_ua = false;
-out:
-	if (ret)
-		dev_err(hba->dev, "%s: Failed to clear UAC WLUNS ret = %d\n",
-				__func__, ret);
-	return ret;
-}
-
 /**
  * ufshcd_probe_hba - probe hba to detect device and initialize
  * @hba: per-adapter instance
@@ -7999,7 +7936,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
 	/* UFS device is also active now */
 	ufshcd_set_ufs_dev_active(hba);
 	ufshcd_force_reset_auto_bkops(hba);
-	hba->wlun_dev_clr_ua = true;
 
 	/* Gear up to HS gear if supported */
 	if (hba->max_pwr_info.is_valid) {
@@ -8526,35 +8462,6 @@ static void ufshcd_hba_exit(struct ufs_hba *hba)
 	}
 }
 
-static int
-ufshcd_send_request_sense(struct ufs_hba *hba, struct scsi_device *sdp)
-{
-	unsigned char cmd[6] = {REQUEST_SENSE,
-				0,
-				0,
-				0,
-				UFS_SENSE_SIZE,
-				0};
-	char *buffer;
-	int ret;
-
-	buffer = kzalloc(UFS_SENSE_SIZE, GFP_KERNEL);
-	if (!buffer) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	ret = scsi_execute(sdp, cmd, DMA_FROM_DEVICE, buffer,
-			UFS_SENSE_SIZE, NULL, NULL,
-			msecs_to_jiffies(1000), 3, 0, RQF_PM, NULL);
-	if (ret)
-		pr_err("%s: failed with err %d\n", __func__, ret);
-
-	kfree(buffer);
-out:
-	return ret;
-}
-
 /**
  * ufshcd_set_dev_pwr_mode - sends START STOP UNIT command to set device
  *			     power mode
@@ -8596,7 +8503,6 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 	 * handling context.
 	 */
 	hba->host->eh_noresume = 1;
-	ufshcd_clear_ua_wluns(hba);
 
 	cmd[4] = pwr_mode << 4;
 
@@ -8925,7 +8831,6 @@ enable_gating:
 
 	hba->clk_gating.is_suspended = false;
 	hba->dev_info.b_rpm_dev_flush_capable = false;
-	ufshcd_clear_ua_wluns(hba);
 	ufshcd_release(hba);
 	ufshpb_resume(hba);
 out:
@@ -9034,8 +8939,6 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		cancel_delayed_work(&hba->rpm_dev_flush_recheck_work);
 	}
 
-	ufshcd_clear_ua_wluns(hba);
-
 	/* Schedule clock gating in case of no access to UFS device yet */
 	ufshcd_release(hba);
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index f4d0fb6fdd972..914533a8ae691 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -881,8 +881,6 @@ struct ufs_hba {
 	struct ufs_vreg_info vreg_info;
 	struct list_head clk_list_head;
 
-	bool wlun_dev_clr_ua;
-
 	/* Number of requests aborts */
 	int req_abort_count;
 
-- 
GitLab


From 2ababcd8c2ababe7f11032b928b9e8ab35af5e8c Mon Sep 17 00:00:00 2001
From: Tobias Schramm <t.schramm@manjaro.org>
Date: Fri, 27 Aug 2021 07:03:57 +0200
Subject: [PATCH 0150/4878] spi: rockchip: handle zero length transfers without
 timing out

[ Upstream commit 5457773ef99f25fcc4b238ac76b68e28273250f4 ]

Previously zero length transfers submitted to the Rokchip SPI driver would
time out in the SPI layer. This happens because the SPI peripheral does
not trigger a transfer completion interrupt for zero length transfers.

Fix that by completing zero length transfers immediately at start of
transfer.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Link: https://lore.kernel.org/r/20210827050357.165409-1-t.schramm@manjaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-rockchip.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 0aab37cd64e74..624273d0e727f 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -582,6 +582,12 @@ static int rockchip_spi_transfer_one(
 	int ret;
 	bool use_dma;
 
+	/* Zero length transfers won't trigger an interrupt on completion */
+	if (!xfer->len) {
+		spi_finalize_current_transfer(ctlr);
+		return 1;
+	}
+
 	WARN_ON(readl_relaxed(rs->regs + ROCKCHIP_SPI_SSIENR) &&
 		(readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_BUSY));
 
-- 
GitLab


From e5611503249fd0cfa0c8262ee18cca39865ed972 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 5 Sep 2021 15:02:09 +0200
Subject: [PATCH 0151/4878] platform/x86: touchscreen_dmi: Add info for the
 Chuwi HiBook (CWI514) tablet

[ Upstream commit 3bf1669b0e033c885ebcb1ddc2334088dd125f2d ]

Add touchscreen info for the Chuwi HiBook (CWI514) tablet. This includes
info for getting the firmware directly from the UEFI, so that the user does
not need to manually install the firmware in /lib/firmware/silead.

This change will make the touchscreen on these devices work OOTB,
without requiring any manual setup.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210905130210.32810-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/touchscreen_dmi.c | 37 ++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 99260915122c0..4f5d53b585db6 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -141,6 +141,33 @@ static const struct ts_dmi_data chuwi_hi10_pro_data = {
 	.properties     = chuwi_hi10_pro_props,
 };
 
+static const struct property_entry chuwi_hibook_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-min-x", 30),
+	PROPERTY_ENTRY_U32("touchscreen-min-y", 4),
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1892),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1276),
+	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
+	PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
+	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hibook.fw"),
+	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+	PROPERTY_ENTRY_BOOL("silead,home-button"),
+	{ }
+};
+
+static const struct ts_dmi_data chuwi_hibook_data = {
+	.embedded_fw = {
+		.name	= "silead/gsl1680-chuwi-hibook.fw",
+		.prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
+		.length	= 40392,
+		.sha256	= { 0xf7, 0xc0, 0xe8, 0x5a, 0x6c, 0xf2, 0xeb, 0x8d,
+			    0x12, 0xc4, 0x45, 0xbf, 0x55, 0x13, 0x4c, 0x1a,
+			    0x13, 0x04, 0x31, 0x08, 0x65, 0x73, 0xf7, 0xa8,
+			    0x1b, 0x7d, 0x59, 0xc9, 0xe6, 0x97, 0xf7, 0x38 },
+	},
+	.acpi_name      = "MSSL0017:00",
+	.properties     = chuwi_hibook_props,
+};
+
 static const struct property_entry chuwi_vi8_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-min-x", 4),
 	PROPERTY_ENTRY_U32("touchscreen-min-y", 6),
@@ -936,6 +963,16 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
 		},
 	},
+	{
+		/* Chuwi HiBook (CWI514) */
+		.driver_data = (void *)&chuwi_hibook_data,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
+			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			/* Above matches are too generic, add bios-date match */
+			DMI_MATCH(DMI_BIOS_DATE, "05/07/2016"),
+		},
+	},
 	{
 		/* Chuwi Vi8 (CWI506) */
 		.driver_data = (void *)&chuwi_vi8_data,
-- 
GitLab


From f986cf270284e0dff977d95b33deebb590708583 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 5 Sep 2021 15:02:10 +0200
Subject: [PATCH 0152/4878] platform/x86: touchscreen_dmi: Update info for the
 Chuwi Hi10 Plus (CWI527) tablet

[ Upstream commit 196159d278ae3b49e7bbb7c76822e6008fd89b97 ]

Add info for getting the firmware directly from the UEFI for the Chuwi Hi10
Plus (CWI527), so that the user does not need to manually install the
firmware in /lib/firmware/silead.

This change will make the touchscreen on these devices work OOTB,
without requiring any manual setup.

Also tweak the min and width/height values a bit for more accurate position
reporting.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210905130210.32810-2-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/touchscreen_dmi.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 4f5d53b585db6..59b7e90cd5875 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -100,10 +100,10 @@ static const struct ts_dmi_data chuwi_hi10_air_data = {
 };
 
 static const struct property_entry chuwi_hi10_plus_props[] = {
-	PROPERTY_ENTRY_U32("touchscreen-min-x", 0),
-	PROPERTY_ENTRY_U32("touchscreen-min-y", 5),
-	PROPERTY_ENTRY_U32("touchscreen-size-x", 1914),
-	PROPERTY_ENTRY_U32("touchscreen-size-y", 1283),
+	PROPERTY_ENTRY_U32("touchscreen-min-x", 12),
+	PROPERTY_ENTRY_U32("touchscreen-min-y", 10),
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1908),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1270),
 	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi10plus.fw"),
 	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
 	PROPERTY_ENTRY_BOOL("silead,home-button"),
@@ -111,6 +111,15 @@ static const struct property_entry chuwi_hi10_plus_props[] = {
 };
 
 static const struct ts_dmi_data chuwi_hi10_plus_data = {
+	.embedded_fw = {
+		.name	= "silead/gsl1680-chuwi-hi10plus.fw",
+		.prefix = { 0xf0, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00 },
+		.length	= 34056,
+		.sha256	= { 0xfd, 0x0a, 0x08, 0x08, 0x3c, 0xa6, 0x34, 0x4e,
+			    0x2c, 0x49, 0x9c, 0xcd, 0x7d, 0x44, 0x9d, 0x38,
+			    0x10, 0x68, 0xb5, 0xbd, 0xb7, 0x2a, 0x63, 0xb5,
+			    0x67, 0x0b, 0x96, 0xbd, 0x89, 0x67, 0x85, 0x09 },
+	},
 	.acpi_name      = "MSSL0017:00",
 	.properties     = chuwi_hi10_plus_props,
 };
-- 
GitLab


From 83050cc23909ae7fe788af2ff67cfe314fb714cd Mon Sep 17 00:00:00 2001
From: Dai Ngo <dai.ngo@oracle.com>
Date: Thu, 16 Sep 2021 14:22:12 -0400
Subject: [PATCH 0153/4878] nfsd: back channel stuck in
 SEQ4_STATUS_CB_PATH_DOWN

[ Upstream commit 02579b2ff8b0becfb51d85a975908ac4ab15fba8 ]

When the back channel enters SEQ4_STATUS_CB_PATH_DOWN state, the client
recovers by sending BIND_CONN_TO_SESSION but the server fails to recover
the back channel and leaves it as NFSD4_CB_DOWN.

Fix by enhancing nfsd4_bind_conn_to_session to probe the back channel
by calling nfsd4_probe_callback.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfsd/nfs4state.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 0313390fa4b44..1cdf7e0a5c22d 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3512,7 +3512,7 @@ static struct nfsd4_conn *__nfsd4_find_conn(struct svc_xprt *xpt, struct nfsd4_s
 }
 
 static __be32 nfsd4_match_existing_connection(struct svc_rqst *rqst,
-				struct nfsd4_session *session, u32 req)
+		struct nfsd4_session *session, u32 req, struct nfsd4_conn **conn)
 {
 	struct nfs4_client *clp = session->se_client;
 	struct svc_xprt *xpt = rqst->rq_xprt;
@@ -3535,6 +3535,8 @@ static __be32 nfsd4_match_existing_connection(struct svc_rqst *rqst,
 	else
 		status = nfserr_inval;
 	spin_unlock(&clp->cl_lock);
+	if (status == nfs_ok && conn)
+		*conn = c;
 	return status;
 }
 
@@ -3559,8 +3561,16 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
 	status = nfserr_wrong_cred;
 	if (!nfsd4_mach_creds_match(session->se_client, rqstp))
 		goto out;
-	status = nfsd4_match_existing_connection(rqstp, session, bcts->dir);
-	if (status == nfs_ok || status == nfserr_inval)
+	status = nfsd4_match_existing_connection(rqstp, session,
+			bcts->dir, &conn);
+	if (status == nfs_ok) {
+		if (bcts->dir == NFS4_CDFC4_FORE_OR_BOTH ||
+				bcts->dir == NFS4_CDFC4_BACK)
+			conn->cn_flags |= NFS4_CDFC4_BACK;
+		nfsd4_probe_callback(session->se_client);
+		goto out;
+	}
+	if (status == nfserr_inval)
 		goto out;
 	status = nfsd4_map_bcts_dir(&bcts->dir);
 	if (status)
-- 
GitLab


From 50628b06e604401138c767b7b57600cbaae1597b Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Tue, 17 Aug 2021 07:55:40 +0800
Subject: [PATCH 0154/4878] btrfs: replace BUG_ON() in btrfs_csum_one_bio()
 with proper error handling

[ Upstream commit bbc9a6eb5eec03dcafee266b19f56295e3b2aa8f ]

There is a BUG_ON() in btrfs_csum_one_bio() to catch code logic error.
It has indeed caught several bugs during subpage development.
But the BUG_ON() itself will bring down the whole system which is
an overkill.

Replace it with a WARN() and exit gracefully, so that it won't crash the
whole system while we can still catch the code logic error.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/file-item.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 48a2ea6d70921..2de1d8247494e 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -568,7 +568,18 @@ blk_status_t btrfs_csum_one_bio(struct btrfs_inode *inode, struct bio *bio,
 
 		if (!ordered) {
 			ordered = btrfs_lookup_ordered_extent(inode, offset);
-			BUG_ON(!ordered); /* Logic error */
+			/*
+			 * The bio range is not covered by any ordered extent,
+			 * must be a code logic error.
+			 */
+			if (unlikely(!ordered)) {
+				WARN(1, KERN_WARNING
+			"no ordered extent for root %llu ino %llu offset %llu\n",
+				     inode->root->root_key.objectid,
+				     btrfs_ino(inode), offset);
+				kvfree(sums);
+				return BLK_STS_IOERR;
+			}
 		}
 
 		nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info,
-- 
GitLab


From 63c89930d4b5f6205b4f4f13498a37cee86d80fa Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Wed, 8 Sep 2021 19:05:44 +0100
Subject: [PATCH 0155/4878] btrfs: fix mount failure due to past and transient
 device flush error

[ Upstream commit 6b225baababf1e3d41a4250e802cbd193e1343fb ]

When we get an error flushing one device, during a super block commit, we
record the error in the device structure, in the field 'last_flush_error'.
This is used to later check if we should error out the super block commit,
depending on whether the number of flush errors is greater than or equals
to the maximum tolerated device failures for a raid profile.

However if we get a transient device flush error, unmount the filesystem
and later try to mount it, we can fail the mount because we treat that
past error as critical and consider the device is missing. Even if it's
very likely that the error will happen again, as it's probably due to a
hardware related problem, there may be cases where the error might not
happen again. One example is during testing, and a test case like the
new generic/648 from fstests always triggers this. The test cases
generic/019 and generic/475 also trigger this scenario, but very
sporadically.

When this happens we get an error like this:

  $ mount /dev/sdc /mnt
  mount: /mnt wrong fs type, bad option, bad superblock on /dev/sdc, missing codepage or helper program, or other error.

  $ dmesg
  (...)
  [12918.886926] BTRFS warning (device sdc): chunk 13631488 missing 1 devices, max tolerance is 0 for writable mount
  [12918.888293] BTRFS warning (device sdc): writable mount is not allowed due to too many missing devices
  [12918.890853] BTRFS error (device sdc): open_ctree failed

The failure happens because when btrfs_check_rw_degradable() is called at
mount time, or at remount from RO to RW time, is sees a non zero value in
a device's ->last_flush_error attribute, and therefore considers that the
device is 'missing'.

Fix this by setting a device's ->last_flush_error to zero when we close a
device, making sure the error is not seen on the next mount attempt. We
only need to track flush errors during the current mount, so that we never
commit a super block if such errors happened.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/volumes.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d8b8764f5bd10..593e0c6d6b44e 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1147,6 +1147,19 @@ static void btrfs_close_one_device(struct btrfs_device *device)
 	atomic_set(&device->dev_stats_ccnt, 0);
 	extent_io_tree_release(&device->alloc_state);
 
+	/*
+	 * Reset the flush error record. We might have a transient flush error
+	 * in this mount, and if so we aborted the current transaction and set
+	 * the fs to an error state, guaranteeing no super blocks can be further
+	 * committed. However that error might be transient and if we unmount the
+	 * filesystem and mount it again, we should allow the mount to succeed
+	 * (btrfs_check_rw_degradable() should not fail) - if after mounting the
+	 * filesystem again we still get flush errors, then we will again abort
+	 * any transaction and set the error state, guaranteeing no commits of
+	 * unsafe super blocks.
+	 */
+	device->last_flush_error = 0;
+
 	/* Verify the device is back in a pristine state  */
 	ASSERT(!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state));
 	ASSERT(!test_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state));
-- 
GitLab


From a41938d07201d0e7793f5aade5574a49f32ae82f Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 17 Sep 2021 16:34:32 +0300
Subject: [PATCH 0156/4878] net: mdio: introduce a shutdown method to mdio
 device drivers

[ Upstream commit cf9579976f724ad517cc15b7caadea728c7e245c ]

MDIO-attached devices might have interrupts and other things that might
need quiesced when we kexec into a new kernel. Things are even more
creepy when those interrupt lines are shared, and in that case it is
absolutely mandatory to disable all interrupt sources.

Moreover, MDIO devices might be DSA switches, and DSA needs its own
shutdown method to unlink from the DSA master, which is a new
requirement that appeared after commit 2f1e8ea726e9 ("net: dsa: link
interfaces with the DSA master to get rid of lockdep warnings").

So introduce a ->shutdown method in the MDIO device driver structure.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/mdio_device.c | 11 +++++++++++
 include/linux/mdio.h          |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/phy/mdio_device.c b/drivers/net/phy/mdio_device.c
index 0837319a52d75..797c41f5590ef 100644
--- a/drivers/net/phy/mdio_device.c
+++ b/drivers/net/phy/mdio_device.c
@@ -179,6 +179,16 @@ static int mdio_remove(struct device *dev)
 	return 0;
 }
 
+static void mdio_shutdown(struct device *dev)
+{
+	struct mdio_device *mdiodev = to_mdio_device(dev);
+	struct device_driver *drv = mdiodev->dev.driver;
+	struct mdio_driver *mdiodrv = to_mdio_driver(drv);
+
+	if (mdiodrv->shutdown)
+		mdiodrv->shutdown(mdiodev);
+}
+
 /**
  * mdio_driver_register - register an mdio_driver with the MDIO layer
  * @drv: new mdio_driver to register
@@ -193,6 +203,7 @@ int mdio_driver_register(struct mdio_driver *drv)
 	mdiodrv->driver.bus = &mdio_bus_type;
 	mdiodrv->driver.probe = mdio_probe;
 	mdiodrv->driver.remove = mdio_remove;
+	mdiodrv->driver.shutdown = mdio_shutdown;
 
 	retval = driver_register(&mdiodrv->driver);
 	if (retval) {
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index dbd69b3d170b4..de5fb4b333ce3 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -72,6 +72,9 @@ struct mdio_driver {
 
 	/* Clears up any memory if needed */
 	void (*remove)(struct mdio_device *mdiodev);
+
+	/* Quiesces the device on system shutdown, turns off interrupts etc */
+	void (*shutdown)(struct mdio_device *mdiodev);
 };
 #define to_mdio_driver(d)						\
 	container_of(to_mdio_common_driver(d), struct mdio_driver, mdiodrv)
-- 
GitLab


From fdfb3bc87381e46b43bb521dfa8b02628b38a955 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@suse.com>
Date: Fri, 17 Sep 2021 08:27:10 +0200
Subject: [PATCH 0157/4878] xen-netback: correct success/error reporting for
 the SKB-with-fraglist case

[ Upstream commit 3ede7f84c7c21f93c5eac611d60eba3f2c765e0f ]

When re-entering the main loop of xenvif_tx_check_gop() a 2nd time, the
special considerations for the head of the SKB no longer apply. Don't
mistakenly report ERROR to the frontend for the first entry in the list,
even if - from all I can tell - this shouldn't matter much as the overall
transmit will need to be considered failed anyway.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/xen-netback/netback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 986b569709616..b0cbc7fead745 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -499,7 +499,7 @@ check_frags:
 				 * the header's copy failed, and they are
 				 * sharing a slot, send an error
 				 */
-				if (i == 0 && sharedslot)
+				if (i == 0 && !first_shinfo && sharedslot)
 					xenvif_idx_release(queue, pending_idx,
 							   XEN_NETIF_RSP_ERROR);
 				else
-- 
GitLab


From b114f2d18e0f97e2776ccfd877f88b3f30ba54a9 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 20 Sep 2021 10:56:32 -0700
Subject: [PATCH 0158/4878] sparc64: fix pci_iounmap() when CONFIG_PCI is not
 set

[ Upstream commit d8b1e10a2b8efaf71d151aa756052fbf2f3b6d57 ]

Guenter reported [1] that the pci_iounmap() changes remain problematic,
with sparc64 allnoconfig and tinyconfig still not building due to the
header file changes and confusion with the arch-specific pci_iounmap()
implementation.

I'm pretty convinced that sparc should just use GENERIC_IOMAP instead of
doing its own thing, since it turns out that the sparc64 version of
pci_iounmap() is somewhat buggy (see [2]).  But in the meantime, this
just fixes the build by avoiding the trivial re-definition of the empty
case.

Link: https://lore.kernel.org/lkml/20210920134424.GA346531@roeck-us.net/ [1]
Link: https://lore.kernel.org/lkml/CAHk-=wgheheFx9myQyy5osh79BAazvmvYURAtub2gQtMvLrhqQ@mail.gmail.com/ [2]
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sparc/lib/iomap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index c9da9f139694d..f3a8cd491ce0d 100644
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -19,8 +19,10 @@ void ioport_unmap(void __iomem *addr)
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
+#ifdef CONFIG_PCI
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	/* nothing to do */
 }
 EXPORT_SYMBOL(pci_iounmap);
+#endif
-- 
GitLab


From 76c7063c7405f30758876af25cfc5e9e39b7bc6e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 21 Sep 2021 23:32:33 +0300
Subject: [PATCH 0159/4878] ext2: fix sleeping in atomic bugs on error

[ Upstream commit 372d1f3e1bfede719864d0d1fbf3146b1e638c88 ]

The ext2_error() function syncs the filesystem so it sleeps.  The caller
is holding a spinlock so it's not allowed to sleep.

   ext2_statfs() <- disables preempt
   -> ext2_count_free_blocks()
      -> ext2_get_group_desc()

Fix this by using WARN() to print an error message and a stack trace
instead of using ext2_error().

Link: https://lore.kernel.org/r/20210921203233.GA16529@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext2/balloc.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 1f3f4326bf3ce..c17ccc19b938e 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -48,10 +48,9 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
 	struct ext2_sb_info *sbi = EXT2_SB(sb);
 
 	if (block_group >= sbi->s_groups_count) {
-		ext2_error (sb, "ext2_get_group_desc",
-			    "block_group >= groups_count - "
-			    "block_group = %d, groups_count = %lu",
-			    block_group, sbi->s_groups_count);
+		WARN(1, "block_group >= groups_count - "
+		     "block_group = %d, groups_count = %lu",
+		     block_group, sbi->s_groups_count);
 
 		return NULL;
 	}
@@ -59,10 +58,9 @@ struct ext2_group_desc * ext2_get_group_desc(struct super_block * sb,
 	group_desc = block_group >> EXT2_DESC_PER_BLOCK_BITS(sb);
 	offset = block_group & (EXT2_DESC_PER_BLOCK(sb) - 1);
 	if (!sbi->s_group_desc[group_desc]) {
-		ext2_error (sb, "ext2_get_group_desc",
-			    "Group descriptor not loaded - "
-			    "block_group = %d, group_desc = %lu, desc = %lu",
-			     block_group, group_desc, offset);
+		WARN(1, "Group descriptor not loaded - "
+		     "block_group = %d, group_desc = %lu, desc = %lu",
+		      block_group, group_desc, offset);
 		return NULL;
 	}
 
-- 
GitLab


From 60df9f55562a57173a11b6c7011eee40dfa48157 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@redhat.com>
Date: Mon, 6 Sep 2021 17:01:12 +0800
Subject: [PATCH 0160/4878] scsi: sd: Free scsi_disk device via put_device()

[ Upstream commit 265dfe8ebbabae7959060bd1c3f75c2473b697ed ]

After a device is initialized via device_initialize() it should be freed
via put_device(). sd_probe() currently gets this wrong, fix it up.

Link: https://lore.kernel.org/r/20210906090112.531442-1-ming.lei@redhat.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/sd.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index f0c0935d79099..56e2917085874 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3443,15 +3443,16 @@ static int sd_probe(struct device *dev)
 	}
 
 	device_initialize(&sdkp->dev);
-	sdkp->dev.parent = dev;
+	sdkp->dev.parent = get_device(dev);
 	sdkp->dev.class = &sd_disk_class;
 	dev_set_name(&sdkp->dev, "%s", dev_name(dev));
 
 	error = device_add(&sdkp->dev);
-	if (error)
-		goto out_free_index;
+	if (error) {
+		put_device(&sdkp->dev);
+		goto out;
+	}
 
-	get_device(dev);
 	dev_set_drvdata(dev, sdkp);
 
 	gd->major = sd_major((index & 0xf0) >> 4);
-- 
GitLab


From ed6574d4846936a063940c2c7a552d0bce52dc49 Mon Sep 17 00:00:00 2001
From: Faizel K B <faizel.kb@dicortech.com>
Date: Thu, 2 Sep 2021 17:14:44 +0530
Subject: [PATCH 0161/4878] usb: testusb: Fix for showing the connection speed

[ Upstream commit f81c08f897adafd2ed43f86f00207ff929f0b2eb ]

testusb' application which uses 'usbtest' driver reports 'unknown speed'
from the function 'find_testdev'. The variable 'entry->speed' was not
updated from  the application. The IOCTL mentioned in the FIXME comment can
only report whether the connection is low speed or not. Speed is read using
the IOCTL USBDEVFS_GET_SPEED which reports the proper speed grade.  The
call is implemented in the function 'handle_testdev' where the file
descriptor was availble locally. Sample output is given below where 'high
speed' is printed as the connected speed.

sudo ./testusb -a
high speed      /dev/bus/usb/001/011    0
/dev/bus/usb/001/011 test 0,    0.000015 secs
/dev/bus/usb/001/011 test 1,    0.194208 secs
/dev/bus/usb/001/011 test 2,    0.077289 secs
/dev/bus/usb/001/011 test 3,    0.170604 secs
/dev/bus/usb/001/011 test 4,    0.108335 secs
/dev/bus/usb/001/011 test 5,    2.788076 secs
/dev/bus/usb/001/011 test 6,    2.594610 secs
/dev/bus/usb/001/011 test 7,    2.905459 secs
/dev/bus/usb/001/011 test 8,    2.795193 secs
/dev/bus/usb/001/011 test 9,    8.372651 secs
/dev/bus/usb/001/011 test 10,    6.919731 secs
/dev/bus/usb/001/011 test 11,   16.372687 secs
/dev/bus/usb/001/011 test 12,   16.375233 secs
/dev/bus/usb/001/011 test 13,    2.977457 secs
/dev/bus/usb/001/011 test 14 --> 22 (Invalid argument)
/dev/bus/usb/001/011 test 17,    0.148826 secs
/dev/bus/usb/001/011 test 18,    0.068718 secs
/dev/bus/usb/001/011 test 19,    0.125992 secs
/dev/bus/usb/001/011 test 20,    0.127477 secs
/dev/bus/usb/001/011 test 21 --> 22 (Invalid argument)
/dev/bus/usb/001/011 test 24,    4.133763 secs
/dev/bus/usb/001/011 test 27,    2.140066 secs
/dev/bus/usb/001/011 test 28,    2.120713 secs
/dev/bus/usb/001/011 test 29,    0.507762 secs

Signed-off-by: Faizel K B <faizel.kb@dicortech.com>
Link: https://lore.kernel.org/r/20210902114444.15106-1-faizel.kb@dicortech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/usb/testusb.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/tools/usb/testusb.c b/tools/usb/testusb.c
index ee8208b2f9460..69c3ead25313d 100644
--- a/tools/usb/testusb.c
+++ b/tools/usb/testusb.c
@@ -265,12 +265,6 @@ nomem:
 	}
 
 	entry->ifnum = ifnum;
-
-	/* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */
-
-	fprintf(stderr, "%s speed\t%s\t%u\n",
-		speed(entry->speed), entry->name, entry->ifnum);
-
 	entry->next = testdevs;
 	testdevs = entry;
 	return 0;
@@ -299,6 +293,14 @@ static void *handle_testdev (void *arg)
 		return 0;
 	}
 
+	status  =  ioctl(fd, USBDEVFS_GET_SPEED, NULL);
+	if (status < 0)
+		fprintf(stderr, "USBDEVFS_GET_SPEED failed %d\n", status);
+	else
+		dev->speed = status;
+	fprintf(stderr, "%s speed\t%s\t%u\n",
+			speed(dev->speed), dev->name, dev->ifnum);
+
 restart:
 	for (i = 0; i < TEST_CASES; i++) {
 		if (dev->test != -1 && dev->test != i)
-- 
GitLab


From 2754fa3b73df7d0ae042f3ed6cfd9df9042f6262 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Tue, 31 Aug 2021 16:42:36 +0800
Subject: [PATCH 0162/4878] usb: dwc2: check return value after calling
 platform_get_resource()

[ Upstream commit 856e6e8e0f9300befa87dde09edb578555c99a82 ]

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210831084236.1359677-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/hcd.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 6af1dcbc36564..30919f741b7fd 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -5074,6 +5074,10 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg)
 	hcd->has_tt = 1;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		retval = -EINVAL;
+		goto error1;
+	}
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-- 
GitLab


From 6a4aaf1d84f75fc86961d5982f2b43d1897de1d3 Mon Sep 17 00:00:00 2001
From: Oded Gabbay <ogabbay@kernel.org>
Date: Sun, 12 Sep 2021 10:25:49 +0300
Subject: [PATCH 0163/4878] habanalabs/gaudi: fix LBW RR configuration

[ Upstream commit 0a5ff77bf0a94468d541735f919a633f167787e9 ]

Couple of fixes to the LBW RR configuration:

1. Add missing configuration of the SM RR registers in the DMA_IF.
2. Remove HBW range that doesn't belong.
3. Add entire gap + DBG area, from end of TPC7 to end of entire
   DBG space.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../misc/habanalabs/gaudi/gaudi_security.c    | 115 ++++++++++--------
 1 file changed, 67 insertions(+), 48 deletions(-)

diff --git a/drivers/misc/habanalabs/gaudi/gaudi_security.c b/drivers/misc/habanalabs/gaudi/gaudi_security.c
index 2d7add0e5bcc0..9343a81d31221 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi_security.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi_security.c
@@ -8,16 +8,21 @@
 #include "gaudiP.h"
 #include "../include/gaudi/asic_reg/gaudi_regs.h"
 
-#define GAUDI_NUMBER_OF_RR_REGS		24
-#define GAUDI_NUMBER_OF_LBW_RANGES	12
+#define GAUDI_NUMBER_OF_LBW_RR_REGS	28
+#define GAUDI_NUMBER_OF_HBW_RR_REGS	24
+#define GAUDI_NUMBER_OF_LBW_RANGES	10
 
-static u64 gaudi_rr_lbw_hit_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_hit_aw_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+	mmDMA_IF_W_S_SOB_HIT_WPROT,
 	mmDMA_IF_W_S_DMA0_HIT_WPROT,
 	mmDMA_IF_W_S_DMA1_HIT_WPROT,
+	mmDMA_IF_E_S_SOB_HIT_WPROT,
 	mmDMA_IF_E_S_DMA0_HIT_WPROT,
 	mmDMA_IF_E_S_DMA1_HIT_WPROT,
+	mmDMA_IF_W_N_SOB_HIT_WPROT,
 	mmDMA_IF_W_N_DMA0_HIT_WPROT,
 	mmDMA_IF_W_N_DMA1_HIT_WPROT,
+	mmDMA_IF_E_N_SOB_HIT_WPROT,
 	mmDMA_IF_E_N_DMA0_HIT_WPROT,
 	mmDMA_IF_E_N_DMA1_HIT_WPROT,
 	mmSIF_RTR_0_LBW_RANGE_PROT_HIT_AW,
@@ -38,13 +43,17 @@ static u64 gaudi_rr_lbw_hit_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_7_LBW_RANGE_PROT_HIT_AW,
 };
 
-static u64 gaudi_rr_lbw_hit_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_hit_ar_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+	mmDMA_IF_W_S_SOB_HIT_RPROT,
 	mmDMA_IF_W_S_DMA0_HIT_RPROT,
 	mmDMA_IF_W_S_DMA1_HIT_RPROT,
+	mmDMA_IF_E_S_SOB_HIT_RPROT,
 	mmDMA_IF_E_S_DMA0_HIT_RPROT,
 	mmDMA_IF_E_S_DMA1_HIT_RPROT,
+	mmDMA_IF_W_N_SOB_HIT_RPROT,
 	mmDMA_IF_W_N_DMA0_HIT_RPROT,
 	mmDMA_IF_W_N_DMA1_HIT_RPROT,
+	mmDMA_IF_E_N_SOB_HIT_RPROT,
 	mmDMA_IF_E_N_DMA0_HIT_RPROT,
 	mmDMA_IF_E_N_DMA1_HIT_RPROT,
 	mmSIF_RTR_0_LBW_RANGE_PROT_HIT_AR,
@@ -65,13 +74,17 @@ static u64 gaudi_rr_lbw_hit_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_7_LBW_RANGE_PROT_HIT_AR,
 };
 
-static u64 gaudi_rr_lbw_min_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_min_aw_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+	mmDMA_IF_W_S_SOB_MIN_WPROT_0,
 	mmDMA_IF_W_S_DMA0_MIN_WPROT_0,
 	mmDMA_IF_W_S_DMA1_MIN_WPROT_0,
+	mmDMA_IF_E_S_SOB_MIN_WPROT_0,
 	mmDMA_IF_E_S_DMA0_MIN_WPROT_0,
 	mmDMA_IF_E_S_DMA1_MIN_WPROT_0,
+	mmDMA_IF_W_N_SOB_MIN_WPROT_0,
 	mmDMA_IF_W_N_DMA0_MIN_WPROT_0,
 	mmDMA_IF_W_N_DMA1_MIN_WPROT_0,
+	mmDMA_IF_E_N_SOB_MIN_WPROT_0,
 	mmDMA_IF_E_N_DMA0_MIN_WPROT_0,
 	mmDMA_IF_E_N_DMA1_MIN_WPROT_0,
 	mmSIF_RTR_0_LBW_RANGE_PROT_MIN_AW_0,
@@ -92,13 +105,17 @@ static u64 gaudi_rr_lbw_min_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_7_LBW_RANGE_PROT_MIN_AW_0,
 };
 
-static u64 gaudi_rr_lbw_max_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_max_aw_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+	mmDMA_IF_W_S_SOB_MAX_WPROT_0,
 	mmDMA_IF_W_S_DMA0_MAX_WPROT_0,
 	mmDMA_IF_W_S_DMA1_MAX_WPROT_0,
+	mmDMA_IF_E_S_SOB_MAX_WPROT_0,
 	mmDMA_IF_E_S_DMA0_MAX_WPROT_0,
 	mmDMA_IF_E_S_DMA1_MAX_WPROT_0,
+	mmDMA_IF_W_N_SOB_MAX_WPROT_0,
 	mmDMA_IF_W_N_DMA0_MAX_WPROT_0,
 	mmDMA_IF_W_N_DMA1_MAX_WPROT_0,
+	mmDMA_IF_E_N_SOB_MAX_WPROT_0,
 	mmDMA_IF_E_N_DMA0_MAX_WPROT_0,
 	mmDMA_IF_E_N_DMA1_MAX_WPROT_0,
 	mmSIF_RTR_0_LBW_RANGE_PROT_MAX_AW_0,
@@ -119,13 +136,17 @@ static u64 gaudi_rr_lbw_max_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_7_LBW_RANGE_PROT_MAX_AW_0,
 };
 
-static u64 gaudi_rr_lbw_min_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_min_ar_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+	mmDMA_IF_W_S_SOB_MIN_RPROT_0,
 	mmDMA_IF_W_S_DMA0_MIN_RPROT_0,
 	mmDMA_IF_W_S_DMA1_MIN_RPROT_0,
+	mmDMA_IF_E_S_SOB_MIN_RPROT_0,
 	mmDMA_IF_E_S_DMA0_MIN_RPROT_0,
 	mmDMA_IF_E_S_DMA1_MIN_RPROT_0,
+	mmDMA_IF_W_N_SOB_MIN_RPROT_0,
 	mmDMA_IF_W_N_DMA0_MIN_RPROT_0,
 	mmDMA_IF_W_N_DMA1_MIN_RPROT_0,
+	mmDMA_IF_E_N_SOB_MIN_RPROT_0,
 	mmDMA_IF_E_N_DMA0_MIN_RPROT_0,
 	mmDMA_IF_E_N_DMA1_MIN_RPROT_0,
 	mmSIF_RTR_0_LBW_RANGE_PROT_MIN_AR_0,
@@ -146,13 +167,17 @@ static u64 gaudi_rr_lbw_min_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_7_LBW_RANGE_PROT_MIN_AR_0,
 };
 
-static u64 gaudi_rr_lbw_max_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_lbw_max_ar_regs[GAUDI_NUMBER_OF_LBW_RR_REGS] = {
+	mmDMA_IF_W_S_SOB_MAX_RPROT_0,
 	mmDMA_IF_W_S_DMA0_MAX_RPROT_0,
 	mmDMA_IF_W_S_DMA1_MAX_RPROT_0,
+	mmDMA_IF_E_S_SOB_MAX_RPROT_0,
 	mmDMA_IF_E_S_DMA0_MAX_RPROT_0,
 	mmDMA_IF_E_S_DMA1_MAX_RPROT_0,
+	mmDMA_IF_W_N_SOB_MAX_RPROT_0,
 	mmDMA_IF_W_N_DMA0_MAX_RPROT_0,
 	mmDMA_IF_W_N_DMA1_MAX_RPROT_0,
+	mmDMA_IF_E_N_SOB_MAX_RPROT_0,
 	mmDMA_IF_E_N_DMA0_MAX_RPROT_0,
 	mmDMA_IF_E_N_DMA1_MAX_RPROT_0,
 	mmSIF_RTR_0_LBW_RANGE_PROT_MAX_AR_0,
@@ -173,7 +198,7 @@ static u64 gaudi_rr_lbw_max_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_7_LBW_RANGE_PROT_MAX_AR_0,
 };
 
-static u64 gaudi_rr_hbw_hit_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_hit_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_HIT_AW,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_HIT_AW,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_HIT_AW,
@@ -200,7 +225,7 @@ static u64 gaudi_rr_hbw_hit_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_HIT_AW
 };
 
-static u64 gaudi_rr_hbw_hit_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_hit_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_HIT_AR,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_HIT_AR,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_HIT_AR,
@@ -227,7 +252,7 @@ static u64 gaudi_rr_hbw_hit_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_HIT_AR
 };
 
-static u64 gaudi_rr_hbw_base_low_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_low_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AW_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_LOW_AW_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AW_0,
@@ -254,7 +279,7 @@ static u64 gaudi_rr_hbw_base_low_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_LOW_AW_0
 };
 
-static u64 gaudi_rr_hbw_base_high_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_high_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AW_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_HIGH_AW_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AW_0,
@@ -281,7 +306,7 @@ static u64 gaudi_rr_hbw_base_high_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_HIGH_AW_0
 };
 
-static u64 gaudi_rr_hbw_mask_low_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_low_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AW_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_LOW_AW_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AW_0,
@@ -308,7 +333,7 @@ static u64 gaudi_rr_hbw_mask_low_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_MASK_LOW_AW_0
 };
 
-static u64 gaudi_rr_hbw_mask_high_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_high_aw_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AW_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_HIGH_AW_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AW_0,
@@ -335,7 +360,7 @@ static u64 gaudi_rr_hbw_mask_high_aw_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_MASK_HIGH_AW_0
 };
 
-static u64 gaudi_rr_hbw_base_low_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_low_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AR_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_LOW_AR_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_LOW_AR_0,
@@ -362,7 +387,7 @@ static u64 gaudi_rr_hbw_base_low_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_LOW_AR_0
 };
 
-static u64 gaudi_rr_hbw_base_high_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_base_high_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AR_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_BASE_HIGH_AR_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_BASE_HIGH_AR_0,
@@ -389,7 +414,7 @@ static u64 gaudi_rr_hbw_base_high_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_BASE_HIGH_AR_0
 };
 
-static u64 gaudi_rr_hbw_mask_low_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_low_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AR_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_LOW_AR_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_LOW_AR_0,
@@ -416,7 +441,7 @@ static u64 gaudi_rr_hbw_mask_low_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
 	mmNIF_RTR_CTRL_7_RANGE_SEC_MASK_LOW_AR_0
 };
 
-static u64 gaudi_rr_hbw_mask_high_ar_regs[GAUDI_NUMBER_OF_RR_REGS] = {
+static u64 gaudi_rr_hbw_mask_high_ar_regs[GAUDI_NUMBER_OF_HBW_RR_REGS] = {
 	mmDMA_IF_W_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AR_0,
 	mmDMA_IF_W_S_DOWN_CH1_RANGE_SEC_MASK_HIGH_AR_0,
 	mmDMA_IF_E_S_DOWN_CH0_RANGE_SEC_MASK_HIGH_AR_0,
@@ -8870,50 +8895,44 @@ static void gaudi_init_range_registers_lbw(struct hl_device *hdev)
 	u32 lbw_rng_end[GAUDI_NUMBER_OF_LBW_RANGES];
 	int i, j;
 
-	lbw_rng_start[0]  = (0xFBFE0000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[0]    = (0xFBFFF000 & 0x3FFFFFF) + 1;
+	lbw_rng_start[0]  = (0xFC0E8000 & 0x3FFFFFF) - 1; /* 0x000E7FFF */
+	lbw_rng_end[0]    = (0xFC11FFFF & 0x3FFFFFF) + 1; /* 0x00120000 */
 
-	lbw_rng_start[1]  = (0xFC0E8000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[1]    = (0xFC120000 & 0x3FFFFFF) + 1;
+	lbw_rng_start[1]  = (0xFC1E8000 & 0x3FFFFFF) - 1; /* 0x001E7FFF */
+	lbw_rng_end[1]    = (0xFC48FFFF & 0x3FFFFFF) + 1; /* 0x00490000 */
 
-	lbw_rng_start[2]  = (0xFC1E8000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[2]    = (0xFC48FFFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[2]  = (0xFC600000 & 0x3FFFFFF) - 1; /* 0x005FFFFF */
+	lbw_rng_end[2]    = (0xFCC48FFF & 0x3FFFFFF) + 1; /* 0x00C49000 */
 
-	lbw_rng_start[3]  = (0xFC600000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[3]    = (0xFCC48FFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[3]  = (0xFCC4A000 & 0x3FFFFFF) - 1; /* 0x00C49FFF */
+	lbw_rng_end[3]    = (0xFCCDFFFF & 0x3FFFFFF) + 1; /* 0x00CE0000 */
 
-	lbw_rng_start[4]  = (0xFCC4A000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[4]    = (0xFCCDFFFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[4]  = (0xFCCE4000 & 0x3FFFFFF) - 1; /* 0x00CE3FFF */
+	lbw_rng_end[4]    = (0xFCD1FFFF & 0x3FFFFFF) + 1; /* 0x00D20000 */
 
-	lbw_rng_start[5]  = (0xFCCE4000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[5]    = (0xFCD1FFFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[5]  = (0xFCD24000 & 0x3FFFFFF) - 1; /* 0x00D23FFF */
+	lbw_rng_end[5]    = (0xFCD5FFFF & 0x3FFFFFF) + 1; /* 0x00D60000 */
 
-	lbw_rng_start[6]  = (0xFCD24000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[6]    = (0xFCD5FFFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[6]  = (0xFCD64000 & 0x3FFFFFF) - 1; /* 0x00D63FFF */
+	lbw_rng_end[6]    = (0xFCD9FFFF & 0x3FFFFFF) + 1; /* 0x00DA0000 */
 
-	lbw_rng_start[7]  = (0xFCD64000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[7]    = (0xFCD9FFFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[7]  = (0xFCDA4000 & 0x3FFFFFF) - 1; /* 0x00DA3FFF */
+	lbw_rng_end[7]    = (0xFCDDFFFF & 0x3FFFFFF) + 1; /* 0x00DE0000 */
 
-	lbw_rng_start[8]  = (0xFCDA4000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[8]    = (0xFCDDFFFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[8]  = (0xFCDE4000 & 0x3FFFFFF) - 1; /* 0x00DE3FFF */
+	lbw_rng_end[8]    = (0xFCE05FFF & 0x3FFFFFF) + 1; /* 0x00E06000 */
 
-	lbw_rng_start[9]  = (0xFCDE4000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[9]    = (0xFCE05FFF & 0x3FFFFFF) + 1;
+	lbw_rng_start[9]  = (0xFCFC9000 & 0x3FFFFFF) - 1; /* 0x00FC8FFF */
+	lbw_rng_end[9]    = (0xFFFFFFFE & 0x3FFFFFF) + 1; /* 0x03FFFFFF */
 
-	lbw_rng_start[10]  = (0xFEC43000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[10]    = (0xFEC43FFF & 0x3FFFFFF) + 1;
-
-	lbw_rng_start[11] = (0xFE484000 & 0x3FFFFFF) - 1;
-	lbw_rng_end[11]   = (0xFE484FFF & 0x3FFFFFF) + 1;
-
-	for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++) {
+	for (i = 0 ; i < GAUDI_NUMBER_OF_LBW_RR_REGS ; i++) {
 		WREG32(gaudi_rr_lbw_hit_aw_regs[i],
 				(1 << GAUDI_NUMBER_OF_LBW_RANGES) - 1);
 		WREG32(gaudi_rr_lbw_hit_ar_regs[i],
 				(1 << GAUDI_NUMBER_OF_LBW_RANGES) - 1);
 	}
 
-	for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++)
+	for (i = 0 ; i < GAUDI_NUMBER_OF_LBW_RR_REGS ; i++)
 		for (j = 0 ; j < GAUDI_NUMBER_OF_LBW_RANGES ; j++) {
 			WREG32(gaudi_rr_lbw_min_aw_regs[i] + (j << 2),
 							lbw_rng_start[j]);
@@ -8960,12 +8979,12 @@ static void gaudi_init_range_registers_hbw(struct hl_device *hdev)
 	 * 6th range is the host
 	 */
 
-	for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++) {
+	for (i = 0 ; i < GAUDI_NUMBER_OF_HBW_RR_REGS ; i++) {
 		WREG32(gaudi_rr_hbw_hit_aw_regs[i], 0x1F);
 		WREG32(gaudi_rr_hbw_hit_ar_regs[i], 0x1D);
 	}
 
-	for (i = 0 ; i < GAUDI_NUMBER_OF_RR_REGS ; i++) {
+	for (i = 0 ; i < GAUDI_NUMBER_OF_HBW_RR_REGS ; i++) {
 		WREG32(gaudi_rr_hbw_base_low_aw_regs[i], dram_addr_lo);
 		WREG32(gaudi_rr_hbw_base_low_ar_regs[i], dram_addr_lo);
 
-- 
GitLab


From bcc4b4de63a44130608d9cb68aa8707c130163d2 Mon Sep 17 00:00:00 2001
From: Li Zhijian <lizhijian@cn.fujitsu.com>
Date: Wed, 15 Sep 2021 21:45:54 +0800
Subject: [PATCH 0164/4878] selftests: be sure to make khdr before other
 targets
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 8914a7a247e065438a0ec86a58c1c359223d2c9e ]

LKP/0Day reported some building errors about kvm, and errors message
are not always same:
- lib/x86_64/processor.c:1083:31: error: ‘KVM_CAP_NESTED_STATE’ undeclared
(first use in this function); did you mean ‘KVM_CAP_PIT_STATE2’?
- lib/test_util.c:189:30: error: ‘MAP_HUGE_16KB’ undeclared (first use
in this function); did you mean ‘MAP_HUGE_16GB’?

Although kvm relies on the khdr, they still be built in parallel when -j
is specified. In this case, it will cause compiling errors.

Here we mark target khdr as NOTPARALLEL to make it be always built
first.

CC: Philip Li <philip.li@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/lib.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 0af84ad48aa77..b7217b5251f57 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -48,6 +48,7 @@ ARCH		?= $(SUBARCH)
 # When local build is done, headers are installed in the default
 # INSTALL_HDR_PATH usr/include.
 .PHONY: khdr
+.NOTPARALLEL:
 khdr:
 ifndef KSFT_KHDR_INSTALL_DONE
 ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
-- 
GitLab


From c4506403e1f32fc41a83a693a0a8f9f0bc13e171 Mon Sep 17 00:00:00 2001
From: Shuah Khan <skhan@linuxfoundation.org>
Date: Wed, 15 Sep 2021 15:28:06 -0600
Subject: [PATCH 0165/4878] selftests:kvm: fix get_warnings_count() ignoring
 fscanf() return warn
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 39a71f712d8a13728febd8f3cb3f6db7e1fa7221 ]

Fix get_warnings_count() to check fscanf() return value to get rid
of the following warning:

x86_64/mmio_warning_test.c: In function ‘get_warnings_count’:
x86_64/mmio_warning_test.c:85:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   85 |  fscanf(f, "%d", &warnings);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
index e6480fd5c4bdc..8039e1eff9388 100644
--- a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
+++ b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
@@ -82,7 +82,8 @@ int get_warnings_count(void)
 	FILE *f;
 
 	f = popen("dmesg | grep \"WARNING:\" | wc -l", "r");
-	fscanf(f, "%d", &warnings);
+	if (fscanf(f, "%d", &warnings) < 1)
+		warnings = 0;
 	fclose(f);
 
 	return warnings;
-- 
GitLab


From c251d023ed22732fa9b0c367240afe1187b4fa6f Mon Sep 17 00:00:00 2001
From: Daniel Wagner <dwagner@suse.de>
Date: Tue, 14 Sep 2021 11:20:06 +0200
Subject: [PATCH 0166/4878] nvme-fc: update hardware queues before using them

[ Upstream commit 555f66d0f8a38537456acc77043d0e4469fcbe8e ]

In case the number of hardware queues changes, we need to update the
tagset and the mapping of ctx to hctx first.

If we try to create and connect the I/O queues first, this operation
will fail (target will reject the connect call due to the wrong number
of queues) and hence we bail out of the recreate function. Then we
will to try the very same operation again, thus we don't make any
progress.

Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/fc.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index a0bcec33b0208..86c6862e71a17 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2952,14 +2952,6 @@ nvme_fc_recreate_io_queues(struct nvme_fc_ctrl *ctrl)
 	if (ctrl->ctrl.queue_count == 1)
 		return 0;
 
-	ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
-	if (ret)
-		goto out_free_io_queues;
-
-	ret = nvme_fc_connect_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
-	if (ret)
-		goto out_delete_hw_queues;
-
 	if (prior_ioq_cnt != nr_io_queues) {
 		dev_info(ctrl->ctrl.device,
 			"reconnect: revising io queue count from %d to %d\n",
@@ -2969,6 +2961,14 @@ nvme_fc_recreate_io_queues(struct nvme_fc_ctrl *ctrl)
 		nvme_unfreeze(&ctrl->ctrl);
 	}
 
+	ret = nvme_fc_create_hw_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
+	if (ret)
+		goto out_free_io_queues;
+
+	ret = nvme_fc_connect_io_queues(ctrl, ctrl->ctrl.sqsize + 1);
+	if (ret)
+		goto out_delete_hw_queues;
+
 	return 0;
 
 out_delete_hw_queues:
-- 
GitLab


From 7a670cfb0f4cba692a2cc0caa60810986ceeab3d Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Tue, 14 Sep 2021 11:20:07 +0200
Subject: [PATCH 0167/4878] nvme-fc: avoid race between time out and tear down

[ Upstream commit e5445dae29d25d7b03e0a10d3d4277a1d0c8119b ]

To avoid race between time out and tear down, in tear down process,
first we quiesce the queue, and then delete the timer and cancel
the time out work for the queue.

This patch merges the admin and io sync ops into the queue teardown logic
as shown in the RDMA patch 3017013dcc "nvme-rdma: avoid race between time
out and tear down". There is no teardown_lock in nvme-fc.

Signed-off-by: James Smart <jsmart2021@gmail.com>
Tested-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/fc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 86c6862e71a17..906cab35afe7a 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2486,6 +2486,7 @@ __nvme_fc_abort_outstanding_ios(struct nvme_fc_ctrl *ctrl, bool start_queues)
 	 */
 	if (ctrl->ctrl.queue_count > 1) {
 		nvme_stop_queues(&ctrl->ctrl);
+		nvme_sync_io_queues(&ctrl->ctrl);
 		blk_mq_tagset_busy_iter(&ctrl->tag_set,
 				nvme_fc_terminate_exchange, &ctrl->ctrl);
 		blk_mq_tagset_wait_completed_request(&ctrl->tag_set);
@@ -2509,6 +2510,7 @@ __nvme_fc_abort_outstanding_ios(struct nvme_fc_ctrl *ctrl, bool start_queues)
 	 * clean up the admin queue. Same thing as above.
 	 */
 	blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
+	blk_sync_queue(ctrl->ctrl.admin_q);
 	blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
 				nvme_fc_terminate_exchange, &ctrl->ctrl);
 	blk_mq_tagset_wait_completed_request(&ctrl->admin_tag_set);
-- 
GitLab


From 2e28f7dd3743bf8f386fa72b96e5da2898039df5 Mon Sep 17 00:00:00 2001
From: Ansuel Smith <ansuelsmth@gmail.com>
Date: Tue, 7 Sep 2021 23:25:42 +0200
Subject: [PATCH 0168/4878] thermal/drivers/tsens: Fix wrong check for tzd in
 irq handlers

[ Upstream commit cf96921876dcee4d6ac07b9de470368a075ba9ad ]

Some devices can have some thermal sensors disabled from the
factory. The current two irq handler functions check all the sensor by
default and the check if the sensor was actually registered is
wrong. The tzd is actually never set if the registration fails hence
the IS_ERR check is wrong.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210907212543.20220-1-ansuelsmth@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/qcom/tsens.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 3c4c0516e58ab..cb4f4b5224460 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -415,7 +415,7 @@ static irqreturn_t tsens_critical_irq_thread(int irq, void *data)
 		const struct tsens_sensor *s = &priv->sensor[i];
 		u32 hw_id = s->hw_id;
 
-		if (IS_ERR(s->tzd))
+		if (!s->tzd)
 			continue;
 		if (!tsens_threshold_violated(priv, hw_id, &d))
 			continue;
@@ -465,7 +465,7 @@ static irqreturn_t tsens_irq_thread(int irq, void *data)
 		const struct tsens_sensor *s = &priv->sensor[i];
 		u32 hw_id = s->hw_id;
 
-		if (IS_ERR(s->tzd))
+		if (!s->tzd)
 			continue;
 		if (!tsens_threshold_violated(priv, hw_id, &d))
 			continue;
-- 
GitLab


From 8724a2a0e6d95242fd9e5c5dcffbd55ab4194b66 Mon Sep 17 00:00:00 2001
From: Wen Xiong <wenxiong@linux.ibm.com>
Date: Thu, 16 Sep 2021 22:24:21 -0500
Subject: [PATCH 0169/4878] scsi: ses: Retry failed Send/Receive Diagnostic
 commands

[ Upstream commit fbdac19e642899455b4e64c63aafe2325df7aafa ]

Setting SCSI logging level with error=3, we saw some errors from enclosues:

[108017.360833] ses 0:0:9:0: tag#641 Done: NEEDS_RETRY Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
[108017.360838] ses 0:0:9:0: tag#641 CDB: Receive Diagnostic 1c 01 01 00 20 00
[108017.427778] ses 0:0:9:0: Power-on or device reset occurred
[108017.427784] ses 0:0:9:0: tag#641 Done: SUCCESS Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
[108017.427788] ses 0:0:9:0: tag#641 CDB: Receive Diagnostic 1c 01 01 00 20 00
[108017.427791] ses 0:0:9:0: tag#641 Sense Key : Unit Attention [current]
[108017.427793] ses 0:0:9:0: tag#641 Add. Sense: Bus device reset function occurred
[108017.427801] ses 0:0:9:0: Failed to get diagnostic page 0x1
[108017.427804] ses 0:0:9:0: Failed to bind enclosure -19
[108017.427895] ses 0:0:10:0: Attached Enclosure device
[108017.427942] ses 0:0:10:0: Attached scsi generic sg18 type 13

Retry if the Send/Receive Diagnostic commands complete with a transient
error status (NOT_READY or UNIT_ATTENTION with ASC 0x29).

Link: https://lore.kernel.org/r/1631849061-10210-2-git-send-email-wenxiong@linux.ibm.com
Reviewed-by: Brian King <brking@linux.ibm.com>
Reviewed-by: James Bottomley <jejb@linux.ibm.com>
Signed-off-by: Wen Xiong <wenxiong@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ses.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index c2afba2a5414d..43e682297fd5f 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -87,9 +87,16 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
 		0
 	};
 	unsigned char recv_page_code;
+	unsigned int retries = SES_RETRIES;
+	struct scsi_sense_hdr sshdr;
+
+	do {
+		ret = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
+				       &sshdr, SES_TIMEOUT, 1, NULL);
+	} while (ret > 0 && --retries && scsi_sense_valid(&sshdr) &&
+		 (sshdr.sense_key == NOT_READY ||
+		  (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
 
-	ret =  scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
-				NULL, SES_TIMEOUT, SES_RETRIES, NULL);
 	if (unlikely(ret))
 		return ret;
 
@@ -121,9 +128,16 @@ static int ses_send_diag(struct scsi_device *sdev, int page_code,
 		bufflen & 0xff,
 		0
 	};
+	struct scsi_sense_hdr sshdr;
+	unsigned int retries = SES_RETRIES;
+
+	do {
+		result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen,
+					  &sshdr, SES_TIMEOUT, 1, NULL);
+	} while (result > 0 && --retries && scsi_sense_valid(&sshdr) &&
+		 (sshdr.sense_key == NOT_READY ||
+		  (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
 
-	result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, buf, bufflen,
-				  NULL, SES_TIMEOUT, SES_RETRIES, NULL);
 	if (result)
 		sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n",
 			    result);
-- 
GitLab


From a7be240d1703784be96d23715a0b716a0d2fcc34 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 10 Sep 2021 18:29:25 +0100
Subject: [PATCH 0170/4878] irqchip/gic: Work around broken Renesas integration

[ Upstream commit b78f26926b17cc289e4f16b63363abe0aa2e8efc ]

Geert reported that the GIC driver locks up on a Renesas system
since 005c34ae4b44f085 ("irqchip/gic: Atomically update affinity")
fixed the driver to use writeb_relaxed() instead of writel_relaxed().

As it turns out, the interconnect used on this system mandates
32bit wide accesses for all MMIO transactions, even if the GIC
architecture specifically mandates for some registers to be byte
accessible. Gahhh...

Work around the issue by crudly detecting the offending system,
and falling back to an inefficient RMW+lock implementation.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/CAMuHMdV+Ev47K5NO8XHsanSq5YRMCHn2gWAQyV-q2LpJVy9HiQ@mail.gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-gic.c | 52 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 6053245a4754c..176f5f06432d1 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -107,6 +107,8 @@ static DEFINE_RAW_SPINLOCK(cpu_map_lock);
 
 #endif
 
+static DEFINE_STATIC_KEY_FALSE(needs_rmw_access);
+
 /*
  * The GIC mapping of CPU interfaces does not necessarily match
  * the logical CPU numbering.  Let's use a mapping as returned
@@ -777,6 +779,25 @@ static int gic_pm_init(struct gic_chip_data *gic)
 #endif
 
 #ifdef CONFIG_SMP
+static void rmw_writeb(u8 bval, void __iomem *addr)
+{
+	static DEFINE_RAW_SPINLOCK(rmw_lock);
+	unsigned long offset = (unsigned long)addr & 3UL;
+	unsigned long shift = offset * 8;
+	unsigned long flags;
+	u32 val;
+
+	raw_spin_lock_irqsave(&rmw_lock, flags);
+
+	addr -= offset;
+	val = readl_relaxed(addr);
+	val &= ~GENMASK(shift + 7, shift);
+	val |= bval << shift;
+	writel_relaxed(val, addr);
+
+	raw_spin_unlock_irqrestore(&rmw_lock, flags);
+}
+
 static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 			    bool force)
 {
@@ -791,7 +812,10 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 	if (cpu >= NR_GIC_CPU_IF || cpu >= nr_cpu_ids)
 		return -EINVAL;
 
-	writeb_relaxed(gic_cpu_map[cpu], reg);
+	if (static_branch_unlikely(&needs_rmw_access))
+		rmw_writeb(gic_cpu_map[cpu], reg);
+	else
+		writeb_relaxed(gic_cpu_map[cpu], reg);
 	irq_data_update_effective_affinity(d, cpumask_of(cpu));
 
 	return IRQ_SET_MASK_OK_DONE;
@@ -1384,6 +1408,30 @@ static bool gic_check_eoimode(struct device_node *node, void __iomem **base)
 	return true;
 }
 
+static bool gic_enable_rmw_access(void *data)
+{
+	/*
+	 * The EMEV2 class of machines has a broken interconnect, and
+	 * locks up on accesses that are less than 32bit. So far, only
+	 * the affinity setting requires it.
+	 */
+	if (of_machine_is_compatible("renesas,emev2")) {
+		static_branch_enable(&needs_rmw_access);
+		return true;
+	}
+
+	return false;
+}
+
+static const struct gic_quirk gic_quirks[] = {
+	{
+		.desc		= "broken byte access",
+		.compatible	= "arm,pl390",
+		.init		= gic_enable_rmw_access,
+	},
+	{ },
+};
+
 static int gic_of_setup(struct gic_chip_data *gic, struct device_node *node)
 {
 	if (!gic || !node)
@@ -1400,6 +1448,8 @@ static int gic_of_setup(struct gic_chip_data *gic, struct device_node *node)
 	if (of_property_read_u32(node, "cpu-offset", &gic->percpu_offset))
 		gic->percpu_offset = 0;
 
+	gic_enable_of_quirks(node, gic_quirks, gic);
+
 	return 0;
 
 error:
-- 
GitLab


From 84778fd66d3d48638d34512a4b496955ff6b0b86 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Thu, 23 Sep 2021 16:00:31 -0500
Subject: [PATCH 0171/4878] smb3: correct smb3 ACL security descriptor

[ Upstream commit b06d893ef2492245d0319b4136edb4c346b687a3 ]

Address warning:

        fs/smbfs_client/smb2pdu.c:2425 create_sd_buf()
        warn: struct type mismatch 'smb3_acl vs cifs_acl'

Pointed out by Dan Carpenter via smatch code analysis tool

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/smb2pdu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index ca5102773b72b..88554b640b0da 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2339,7 +2339,7 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len)
 	buf->sd.OffsetDacl = cpu_to_le32(ptr - (__u8 *)&buf->sd);
 	/* Ship the ACL for now. we will copy it into buf later. */
 	aclptr = ptr;
-	ptr += sizeof(struct cifs_acl);
+	ptr += sizeof(struct smb3_acl);
 
 	/* create one ACE to hold the mode embedded in reserved special SID */
 	acelen = setup_special_mode_ACE((struct cifs_ace *)ptr, (__u64)mode);
@@ -2364,7 +2364,7 @@ create_sd_buf(umode_t mode, bool set_owner, unsigned int *len)
 	acl.AclRevision = ACL_REVISION; /* See 2.4.4.1 of MS-DTYP */
 	acl.AclSize = cpu_to_le16(acl_size);
 	acl.AceCount = cpu_to_le16(ace_count);
-	memcpy(aclptr, &acl, sizeof(struct cifs_acl));
+	memcpy(aclptr, &acl, sizeof(struct smb3_acl));
 
 	buf->ccontext.DataLength = cpu_to_le32(ptr - (__u8 *)&buf->sd);
 	*len = roundup(ptr - (__u8 *)buf, 8);
-- 
GitLab


From 352b02562a3e01a640bf7d242ebf61003cf93c59 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Fri, 24 Sep 2021 15:43:41 -0700
Subject: [PATCH 0172/4878] tools/vm/page-types: remove dependency on opt_file
 for idle page tracking

[ Upstream commit ebaeab2fe87987cef28eb5ab174c42cd28594387 ]

Idle page tracking can also be used for process address space, not only
file mappings.

Without this change, using with '-i' option for process address space
encounters below errors reported.

  $ sudo ./page-types -p $(pidof bash) -i
  mark page idle: Bad file descriptor
  mark page idle: Bad file descriptor
  mark page idle: Bad file descriptor
  mark page idle: Bad file descriptor
  ...

Link: https://lkml.kernel.org/r/20210917032826.10669-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/vm/page-types.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c
index 0517c744b04e8..f62f10c988db1 100644
--- a/tools/vm/page-types.c
+++ b/tools/vm/page-types.c
@@ -1331,7 +1331,7 @@ int main(int argc, char *argv[])
 	if (opt_list && opt_list_mapcnt)
 		kpagecount_fd = checked_open(PROC_KPAGECOUNT, O_RDONLY);
 
-	if (opt_mark_idle && opt_file)
+	if (opt_mark_idle)
 		page_idle_fd = checked_open(SYS_KERNEL_MM_PAGE_IDLE, O_RDWR);
 
 	if (opt_list && opt_pid)
-- 
GitLab


From b8add3f47ae7fee564a941aa9ade3eb51ea997f0 Mon Sep 17 00:00:00 2001
From: Oliver Upton <oupton@google.com>
Date: Tue, 21 Sep 2021 17:11:21 +0000
Subject: [PATCH 0173/4878] selftests: KVM: Align SMCCC call with the spec in
 steal_time

[ Upstream commit 01f91acb55be7aac3950b89c458bcea9ef6e4f49 ]

The SMC64 calling convention passes a function identifier in w0 and its
parameters in x1-x17. Given this, there are two deviations in the
SMC64 call performed by the steal_time test: the function identifier is
assigned to a 64 bit register and the parameter is only 32 bits wide.

Align the call with the SMCCC by using a 32 bit register to handle the
function identifier and increasing the parameter width to 64 bits.

Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Oliver Upton <oupton@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20210921171121.2148982-3-oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/steal_time.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c
index fcc840088c919..7daedee3e7ee7 100644
--- a/tools/testing/selftests/kvm/steal_time.c
+++ b/tools/testing/selftests/kvm/steal_time.c
@@ -120,12 +120,12 @@ struct st_time {
 	uint64_t st_time;
 };
 
-static int64_t smccc(uint32_t func, uint32_t arg)
+static int64_t smccc(uint32_t func, uint64_t arg)
 {
 	unsigned long ret;
 
 	asm volatile(
-		"mov	x0, %1\n"
+		"mov	w0, %w1\n"
 		"mov	x1, %2\n"
 		"hvc	#0\n"
 		"mov	%0, x0\n"
-- 
GitLab


From 6d0ff920599960a22ea520afda99eed3096c0e12 Mon Sep 17 00:00:00 2001
From: Sergey Senozhatsky <senozhatsky@chromium.org>
Date: Thu, 2 Sep 2021 12:11:00 +0900
Subject: [PATCH 0174/4878] KVM: do not shrink halt_poll_ns below grow_start

[ Upstream commit ae232ea460888dc5a8b37e840c553b02521fbf18 ]

grow_halt_poll_ns() ignores values between 0 and
halt_poll_ns_grow_start (10000 by default). However,
when we shrink halt_poll_ns we may fall way below
halt_poll_ns_grow_start and endup with halt_poll_ns
values that don't make a lot of sense: like 1 or 9,
or 19.

VCPU1 trace (halt_poll_ns_shrink equals 2):

VCPU1 grow 10000
VCPU1 shrink 5000
VCPU1 shrink 2500
VCPU1 shrink 1250
VCPU1 shrink 625
VCPU1 shrink 312
VCPU1 shrink 156
VCPU1 shrink 78
VCPU1 shrink 39
VCPU1 shrink 19
VCPU1 shrink 9
VCPU1 shrink 4

Mirror what grow_halt_poll_ns() does and set halt_poll_ns
to 0 as soon as new shrink-ed halt_poll_ns value falls
below halt_poll_ns_grow_start.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210902031100.252080-1-senozhatsky@chromium.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 virt/kvm/kvm_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 0e4310c415a8d..57c0c3b18bde7 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2756,15 +2756,19 @@ out:
 
 static void shrink_halt_poll_ns(struct kvm_vcpu *vcpu)
 {
-	unsigned int old, val, shrink;
+	unsigned int old, val, shrink, grow_start;
 
 	old = val = vcpu->halt_poll_ns;
 	shrink = READ_ONCE(halt_poll_ns_shrink);
+	grow_start = READ_ONCE(halt_poll_ns_grow_start);
 	if (shrink == 0)
 		val = 0;
 	else
 		val /= shrink;
 
+	if (val < grow_start)
+		val = 0;
+
 	vcpu->halt_poll_ns = val;
 	trace_kvm_halt_poll_ns_shrink(vcpu->vcpu_id, val, old);
 }
-- 
GitLab


From ae34f26d4a8487e37ab9cfdca72f447c1ef49aa5 Mon Sep 17 00:00:00 2001
From: Fares Mehanna <faresx@amazon.de>
Date: Wed, 15 Sep 2021 13:39:50 +0000
Subject: [PATCH 0175/4878] kvm: x86: Add AMD PMU MSRs to msrs_to_save_all[]

[ Upstream commit e1fc1553cd78292ab3521c94c9dd6e3e70e606a1 ]

Intel PMU MSRs is in msrs_to_save_all[], so add AMD PMU MSRs to have a
consistent behavior between Intel and AMD when using KVM_GET_MSRS,
KVM_SET_MSRS or KVM_GET_MSR_INDEX_LIST.

We have to add legacy and new MSRs to handle guests running without
X86_FEATURE_PERFCTR_CORE.

Signed-off-by: Fares Mehanna <faresx@amazon.de>
Message-Id: <20210915133951.22389-1-faresx@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/x86.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d65da3b5837b2..b885063dc393f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1250,6 +1250,13 @@ static const u32 msrs_to_save_all[] = {
 	MSR_ARCH_PERFMON_EVENTSEL0 + 12, MSR_ARCH_PERFMON_EVENTSEL0 + 13,
 	MSR_ARCH_PERFMON_EVENTSEL0 + 14, MSR_ARCH_PERFMON_EVENTSEL0 + 15,
 	MSR_ARCH_PERFMON_EVENTSEL0 + 16, MSR_ARCH_PERFMON_EVENTSEL0 + 17,
+
+	MSR_K7_EVNTSEL0, MSR_K7_EVNTSEL1, MSR_K7_EVNTSEL2, MSR_K7_EVNTSEL3,
+	MSR_K7_PERFCTR0, MSR_K7_PERFCTR1, MSR_K7_PERFCTR2, MSR_K7_PERFCTR3,
+	MSR_F15H_PERF_CTL0, MSR_F15H_PERF_CTL1, MSR_F15H_PERF_CTL2,
+	MSR_F15H_PERF_CTL3, MSR_F15H_PERF_CTL4, MSR_F15H_PERF_CTL5,
+	MSR_F15H_PERF_CTR0, MSR_F15H_PERF_CTR1, MSR_F15H_PERF_CTR2,
+	MSR_F15H_PERF_CTR3, MSR_F15H_PERF_CTR4, MSR_F15H_PERF_CTR5,
 };
 
 static u32 msrs_to_save[ARRAY_SIZE(msrs_to_save_all)];
-- 
GitLab


From b56475c29bd82589c5cab0c349476206ae7a2e40 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Tue, 14 Sep 2021 18:48:12 +0300
Subject: [PATCH 0176/4878] KVM: x86: nSVM: restore int_vector in
 svm_clear_vintr

[ Upstream commit aee77e1169c1900fe4248dc186962e745b479d9e ]

In svm_clear_vintr we try to restore the virtual interrupt
injection that might be pending, but we fail to restore
the interrupt vector.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210914154825.104886-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/svm/svm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 1c23aee3778c3..5e1d7396a6b8a 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1497,6 +1497,8 @@ static void svm_clear_vintr(struct vcpu_svm *svm)
 			(svm->nested.ctl.int_ctl & V_TPR_MASK));
 		svm->vmcb->control.int_ctl |= svm->nested.ctl.int_ctl &
 			V_IRQ_INJECTION_BITS_MASK;
+
+		svm->vmcb->control.int_vector = svm->nested.ctl.int_vector;
 	}
 
 	vmcb_mark_dirty(svm->vmcb, VMCB_INTR);
-- 
GitLab


From 02bf504bc32b2b29e0c30d1d55fb0a504962282b Mon Sep 17 00:00:00 2001
From: Anand K Mistry <amistry@google.com>
Date: Wed, 29 Sep 2021 17:04:21 +1000
Subject: [PATCH 0177/4878] perf/x86: Reset destroy callback on event init
 failure

commit 02d029a41dc986e2d5a77ecca45803857b346829 upstream.

perf_init_event tries multiple init callbacks and does not reset the
event state between tries. When x86_pmu_event_init runs, it
unconditionally sets the destroy callback to hw_perf_event_destroy. On
the next init attempt after x86_pmu_event_init, in perf_try_init_event,
if the pmu's capabilities includes PERF_PMU_CAP_NO_EXCLUDE, the destroy
callback will be run. However, if the next init didn't set the destroy
callback, hw_perf_event_destroy will be run (since the callback wasn't
reset).

Looking at other pmu init functions, the common pattern is to only set
the destroy callback on a successful init. Resetting the callback on
failure tries to replicate that pattern.

This was discovered after commit f11dd0d80555 ("perf/x86/amd/ibs: Extend
PERF_PMU_CAP_NO_EXCLUDE to IBS Op") when the second (and only second)
run of the perf tool after a reboot results in 0 samples being
generated. The extra run of hw_perf_event_destroy results in
active_events having an extra decrement on each perf run. The second run
has active_events == 0 and every subsequent run has active_events < 0.
When active_events == 0, the NMI handler will early-out and not record
any samples.

Signed-off-by: Anand K Mistry <amistry@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210929170405.1.I078b98ee7727f9ae9d6df8262bad7e325e40faf0@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index e6db1a1f22d7d..1f5d96ba4866d 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2284,6 +2284,7 @@ static int x86_pmu_event_init(struct perf_event *event)
 	if (err) {
 		if (event->destroy)
 			event->destroy(event);
+		event->destroy = NULL;
 	}
 
 	if (READ_ONCE(x86_pmu.attr_rdpmc) &&
-- 
GitLab


From 387aecdab7facf7af40ff1ce8ba2d819b1f11829 Mon Sep 17 00:00:00 2001
From: Kate Hsuan <hpa@redhat.com>
Date: Fri, 3 Sep 2021 17:44:11 +0800
Subject: [PATCH 0178/4878] libata: Add ATA_HORKAGE_NO_NCQ_ON_ATI for Samsung
 860 and 870 SSD.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 7a8526a5cd51cf5f070310c6c37dd7293334ac49 upstream.

Many users are reporting that the Samsung 860 and 870 SSD are having
various issues when combined with AMD/ATI (vendor ID 0x1002)  SATA
controllers and only completely disabling NCQ helps to avoid these
issues.

Always disabling NCQ for Samsung 860/870 SSDs regardless of the host
SATA adapter vendor will cause I/O performance degradation with well
behaved adapters. To limit the performance impact to ATI adapters,
introduce the ATA_HORKAGE_NO_NCQ_ON_ATI flag to force disable NCQ
only for these adapters.

Also, two libata.force parameters (noncqati and ncqati) are introduced
to disable and enable the NCQ for the system which equipped with ATI
SATA adapter and Samsung 860 and 870 SSDs. The user can determine NCQ
function to be enabled or disabled according to the demand.

After verifying the chipset from the user reports, the issue appears
on AMD/ATI SB7x0/SB8x0/SB9x0 SATA Controllers and does not appear on
recent AMD SATA adapters. The vendor ID of ATI should be 0x1002.
Therefore, ATA_HORKAGE_NO_NCQ_ON_AMD was modified to
ATA_HORKAGE_NO_NCQ_ON_ATI.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=201693
Signed-off-by: Kate Hsuan <hpa@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210903094411.58749-1-hpa@redhat.com
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Krzysztof Olędzki <ole@ans.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libata-core.c | 34 ++++++++++++++++++++++++++++++++--
 include/linux/libata.h    |  1 +
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 0e6e73b8023fc..8916163d508e0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2199,6 +2199,25 @@ static void ata_dev_config_ncq_prio(struct ata_device *dev)
 
 }
 
+static bool ata_dev_check_adapter(struct ata_device *dev,
+				  unsigned short vendor_id)
+{
+	struct pci_dev *pcidev = NULL;
+	struct device *parent_dev = NULL;
+
+	for (parent_dev = dev->tdev.parent; parent_dev != NULL;
+	     parent_dev = parent_dev->parent) {
+		if (dev_is_pci(parent_dev)) {
+			pcidev = to_pci_dev(parent_dev);
+			if (pcidev->vendor == vendor_id)
+				return true;
+			break;
+		}
+	}
+
+	return false;
+}
+
 static int ata_dev_config_ncq(struct ata_device *dev,
 			       char *desc, size_t desc_sz)
 {
@@ -2217,6 +2236,13 @@ static int ata_dev_config_ncq(struct ata_device *dev,
 		snprintf(desc, desc_sz, "NCQ (not used)");
 		return 0;
 	}
+
+	if (dev->horkage & ATA_HORKAGE_NO_NCQ_ON_ATI &&
+	    ata_dev_check_adapter(dev, PCI_VENDOR_ID_ATI)) {
+		snprintf(desc, desc_sz, "NCQ (not used)");
+		return 0;
+	}
+
 	if (ap->flags & ATA_FLAG_NCQ) {
 		hdepth = min(ap->scsi_host->can_queue, ATA_MAX_QUEUE);
 		dev->flags |= ATA_DFLAG_NCQ;
@@ -3951,9 +3977,11 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "Samsung SSD 850*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 	{ "Samsung SSD 860*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
-						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+						ATA_HORKAGE_ZERO_AFTER_TRIM |
+						ATA_HORKAGE_NO_NCQ_ON_ATI, },
 	{ "Samsung SSD 870*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
-						ATA_HORKAGE_ZERO_AFTER_TRIM, },
+						ATA_HORKAGE_ZERO_AFTER_TRIM |
+						ATA_HORKAGE_NO_NCQ_ON_ATI, },
 	{ "FCCT*M500*",			NULL,	ATA_HORKAGE_NO_NCQ_TRIM |
 						ATA_HORKAGE_ZERO_AFTER_TRIM, },
 
@@ -6108,6 +6136,8 @@ static int __init ata_parse_force_one(char **cur,
 		{ "ncq",	.horkage_off	= ATA_HORKAGE_NONCQ },
 		{ "noncqtrim",	.horkage_on	= ATA_HORKAGE_NO_NCQ_TRIM },
 		{ "ncqtrim",	.horkage_off	= ATA_HORKAGE_NO_NCQ_TRIM },
+		{ "noncqati",	.horkage_on	= ATA_HORKAGE_NO_NCQ_ON_ATI },
+		{ "ncqati",	.horkage_off	= ATA_HORKAGE_NO_NCQ_ON_ATI },
 		{ "dump_id",	.horkage_on	= ATA_HORKAGE_DUMP_ID },
 		{ "pio0",	.xfer_mask	= 1 << (ATA_SHIFT_PIO + 0) },
 		{ "pio1",	.xfer_mask	= 1 << (ATA_SHIFT_PIO + 1) },
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 5f550eb27f811..57dffa0d58702 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -422,6 +422,7 @@ enum {
 	ATA_HORKAGE_NOTRIM	= (1 << 24),	/* don't use TRIM */
 	ATA_HORKAGE_MAX_SEC_1024 = (1 << 25),	/* Limit max sects to 1024 */
 	ATA_HORKAGE_MAX_TRIM_128M = (1 << 26),	/* Limit max trim size to 128M */
+	ATA_HORKAGE_NO_NCQ_ON_ATI = (1 << 27),	/* Disable NCQ on ATI chipset */
 
 	 /* DMA mask for user DMA control: User visible values; DO NOT
 	    renumber */
-- 
GitLab


From 5aa003b38148d584f20455ecac85c51187d0b71e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 9 Oct 2021 14:40:58 +0200
Subject: [PATCH 0179/4878] Linux 5.10.72

Link: https://lore.kernel.org/r/20211008112716.914501436@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 1637ff7c1b751..48211c8503d4e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 71
+SUBLEVEL = 72
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From d7a956441fef82be6357db6393a368e6ac52c9ca Mon Sep 17 00:00:00 2001
From: Sami Tolvanen <samitolvanen@google.com>
Date: Mon, 16 Aug 2021 11:05:19 -0700
Subject: [PATCH 0180/4878] BACKPORT: kbuild: Fix TRIM_UNUSED_KSYMS with
 LTO_CLANG

With CONFIG_LTO_CLANG, we currently link modules into native
code just before modpost, which means with TRIM_UNUSED_KSYMS
enabled, we still look at the LLVM bitcode in the .o files when
generating the list of used symbols. As the bitcode doesn't
yet have calls to compiler intrinsics and llvm-nm doesn't see
function references that only exist in function-level inline
assembly, we currently need a whitelist for TRIM_UNUSED_KSYMS to
work with LTO.

This change moves module LTO linking to happen earlier, and
thus avoids the issue with LLVM bitcode and TRIM_UNUSED_KSYMS
entirely, allowing us to also drop the whitelist from
gen_autoksyms.sh.

Link: https://github.com/ClangBuiltLinux/linux/issues/1369
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Alexander Lobakin <alobakin@pm.me>
Tested-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

(cherry picked from commit 850ded46c64299f04d15e39caaba21963fb966f8)

Conflicts:
	scripts/Makefile.modfinal
	scripts/Makefile.modpost

Bug: 189327973
Change-Id: I61c3782619e6475cfff74c270b70e01e229dc8df
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 scripts/Makefile.build    | 29 ++++++++++++++++++++++++++++-
 scripts/Makefile.lib      |  7 +++++++
 scripts/Makefile.modfinal | 23 ++---------------------
 scripts/Makefile.modpost  | 22 +++-------------------
 scripts/gen_autoksyms.sh  | 12 ------------
 5 files changed, 40 insertions(+), 53 deletions(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1a4aa5edfd1e6..40bff93c824bf 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -88,6 +88,10 @@ endif
 
 targets-for-modules := $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))
 
+ifdef CONFIG_LTO_CLANG
+targets-for-modules += $(patsubst %.o, %.lto.o, $(filter %.o, $(obj-m)))
+endif
+
 ifdef need-modorder
 targets-for-modules += $(obj)/modules.order
 endif
@@ -273,12 +277,35 @@ $(obj)/%.o: $(src)/%.c $(recordmcount_source) $$(objtool_dep) FORCE
 	$(call if_changed_rule,cc_o_c)
 	$(call cmd,force_checksrc)
 
+ifdef CONFIG_LTO_CLANG
+# Module .o files may contain LLVM bitcode, compile them into native code
+# before ELF processing
+quiet_cmd_cc_lto_link_modules = LTO [M] $@
+cmd_cc_lto_link_modules =						\
+	$(LD) $(ld_flags) -r -o $@					\
+		$(shell [ -s $(@:.lto.o=.o.symversions) ] &&		\
+			echo -T $(@:.lto.o=.o.symversions))		\
+		--whole-archive $(filter-out FORCE,$^)
+
+ifdef CONFIG_STACK_VALIDATION
+ifneq ($(SKIP_STACK_VALIDATION),1)
+# objtool was skipped for LLVM bitcode, run it now that we have compiled
+# modules into native code
+cmd_cc_lto_link_modules += ;						\
+	$(objtree)/tools/objtool/objtool $(objtool_args) --module $@
+endif # SKIP_STACK_VALIDATION
+endif
+
+$(obj)/%.lto.o: $(obj)/%.o FORCE
+	$(call if_changed,cc_lto_link_modules)
+endif
+
 cmd_mod = { \
 	echo $(if $($*-objs)$($*-y)$($*-m), $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), $(@:.mod=.o)); \
 	$(undefined_syms) echo; \
 	} > $@
 
-$(obj)/%.mod: $(obj)/%.o FORCE
+$(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o FORCE
 	$(call if_changed,mod)
 
 quiet_cmd_cc_lst_c = MKLST   $@
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index a4f4906160b74..28f73e4355b1f 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -234,6 +234,13 @@ dtc_cpp_flags  = -Wp,-MMD,$(depfile).pre.tmp -nostdinc                    \
 		 $(addprefix -I,$(DTC_INCLUDE))                          \
 		 -undef -D__DTS__
 
+ifeq ($(CONFIG_LTO_CLANG),y)
+# With CONFIG_LTO_CLANG, .o files in modules might be LLVM bitcode, so we
+# need to run LTO to compile them into native code (.lto.o) before further
+# processing.
+mod-prelink-ext := .lto
+endif
+
 # Objtool arguments are also needed for modfinal with LTO, so we define
 # then here to avoid duplication.
 objtool_args =								\
diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal
index 9ae3d9ae3d367..6e2c8f8fbc8db 100644
--- a/scripts/Makefile.modfinal
+++ b/scripts/Makefile.modfinal
@@ -9,7 +9,7 @@ __modfinal:
 include $(objtree)/include/config/auto.conf
 include $(srctree)/scripts/Kbuild.include
 
-# for c_flags and objtool_args
+# for c_flags and mod-prelink-ext
 include $(srctree)/scripts/Makefile.lib
 
 # find all modules listed in modules.order
@@ -32,25 +32,6 @@ quiet_cmd_cc_o_c = CC [M]  $@
 
 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
 
-ifdef CONFIG_LTO_CLANG
-# With CONFIG_LTO_CLANG, reuse the object file we compiled for modpost to
-# avoid a second slow LTO link
-prelink-ext := .lto
-
-# ELF processing was skipped earlier because we didn't have native code,
-# so let's now process the prelinked binary before we link the module.
-
-ifdef CONFIG_STACK_VALIDATION
-ifneq ($(SKIP_STACK_VALIDATION),1)
-cmd_ld_ko_o +=								\
-	$(objtree)/tools/objtool/objtool $(objtool_args)		\
-		$(@:.ko=$(prelink-ext).o);
-
-endif # SKIP_STACK_VALIDATION
-endif # CONFIG_STACK_VALIDATION
-
-endif # CONFIG_LTO_CLANG
-
 quiet_cmd_ld_ko_o = LD [M]  $@
       cmd_ld_ko_o +=							\
 	$(LD) -r $(KBUILD_LDFLAGS)					\
@@ -75,7 +56,7 @@ cmd_ld_ko_o += ;							\
 	fi
 endif
 
-$(modules): %.ko: %$(prelink-ext).o %.mod.o scripts/module.lds FORCE
+$(modules): %.ko: %$(mod-prelink-ext).o %.mod.o scripts/module.lds FORCE
 	+$(call if_changed,ld_ko_o)
 
 targets += $(modules) $(modules:.ko=.mod.o)
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 772e73ee455dd..1be58a03bbad3 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -43,7 +43,7 @@ __modpost:
 include include/config/auto.conf
 include scripts/Kbuild.include
 
-# for ld_flags
+# for mod-prelink-ext
 include scripts/Makefile.lib
 
 mixed-build-prefix = $(if $(KBUILD_MIXED_TREE),$(KBUILD_MIXED_TREE)/)
@@ -142,30 +142,14 @@ $(input-symdump):
 	@echo >&2 'WARNING: Symbol version dump "$@" is missing.'
 	@echo >&2 '         Modules may not have dependencies or modversions.'
 
-ifdef CONFIG_LTO_CLANG
-# With CONFIG_LTO_CLANG, .o files might be LLVM bitcode, so we need to run
-# LTO to compile them into native code before running modpost
-prelink-ext := .lto
-
-quiet_cmd_cc_lto_link_modules = LTO [M] $@
-cmd_cc_lto_link_modules =						\
-	$(LD) $(ld_flags) -r -o $@					\
-		$(shell [ -s $(@:.lto.o=.o.symversions) ] &&		\
-			echo -T $(@:.lto.o=.o.symversions))		\
-		--whole-archive $^
-
-%.lto.o: %.o
-	$(call if_changed,cc_lto_link_modules)
-endif
-
 modules := $(sort $(shell cat $(MODORDER)))
 
 # Read out modules.order to pass in modpost.
 # Otherwise, allmodconfig would fail with "Argument list too long".
 quiet_cmd_modpost = MODPOST $@
-      cmd_modpost = sed 's/\.ko$$/$(prelink-ext)\.o/' $< | $(MODPOST) -T -
+      cmd_modpost = sed 's/\.ko$$/$(mod-prelink-ext)\.o/' $< | $(MODPOST) -T -
 
-$(output-symdump): $(MODORDER) $(input-symdump) $(modules:.ko=$(prelink-ext).o) FORCE
+$(output-symdump): $(MODORDER) $(input-symdump) $(modules:.ko=$(mod-prelink-ext).o) FORCE
 	$(call if_changed,modpost)
 
 targets += $(output-symdump)
diff --git a/scripts/gen_autoksyms.sh b/scripts/gen_autoksyms.sh
index da320151e7c39..6ed0d225c8b1c 100755
--- a/scripts/gen_autoksyms.sh
+++ b/scripts/gen_autoksyms.sh
@@ -26,18 +26,6 @@ if [ -n "$CONFIG_MODVERSIONS" ]; then
 	needed_symbols="$needed_symbols module_layout"
 fi
 
-# With CONFIG_LTO_CLANG, LLVM bitcode has not yet been compiled into a binary
-# when the .mod files are generated, which means they don't yet contain
-# references to certain symbols that will be present in the final binaries.
-if [ -n "$CONFIG_LTO_CLANG" ]; then
-	# intrinsic functions
-	needed_symbols="$needed_symbols memcpy memmove memset"
-	# ftrace
-	needed_symbols="$needed_symbols _mcount"
-	# stack protector symbols
-	needed_symbols="$needed_symbols __stack_chk_fail __stack_chk_guard"
-fi
-
 ksym_wl=
 if [ -n "$CONFIG_UNUSED_KSYMS_WHITELIST" ]; then
 	# Use 'eval' to expand the whitelist path and check if it is relative
-- 
GitLab


From de58a967a3c279dd524c0cccd9d40aa055bae79e Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 8 Oct 2021 12:49:19 -0700
Subject: [PATCH 0181/4878] ANDROID: ABI: update fips140 symbol list

Generated by running:

    BUILD_CONFIG=common/build.config.gki.aarch64.fips140 build/build_abi.sh --update-symbol-list

Bug: 188620248
Bug: 189327973
Change-Id: Ic5693e2b0e7bf608fe1239e176f2f337e025055c
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 android/abi_gki_aarch64_fips140 | 36 ++++++---------------------------
 1 file changed, 6 insertions(+), 30 deletions(-)

diff --git a/android/abi_gki_aarch64_fips140 b/android/abi_gki_aarch64_fips140
index b4810fec64190..d541c9f794dcb 100644
--- a/android/abi_gki_aarch64_fips140
+++ b/android/abi_gki_aarch64_fips140
@@ -6,12 +6,11 @@
 # required by fips140.ko
   add_random_ready_callback
   aead_register_instance
-  arm64_const_caps_ready
+  arch_timer_read_counter
   bcmp
   cancel_work_sync
   __cfi_slowpath
   cpu_have_feature
-  cpu_hwcap_keys
   crypto_aead_decrypt
   crypto_aead_encrypt
   crypto_aead_setauthsize
@@ -28,7 +27,6 @@
   crypto_alloc_skcipher
   crypto_attr_alg_name
   crypto_check_attr_type
-  crypto_cipher_decrypt_one
   crypto_cipher_encrypt_one
   crypto_cipher_setkey
   crypto_destroy_tfm
@@ -50,7 +48,6 @@
   crypto_register_skciphers
   crypto_register_template
   crypto_register_templates
-  crypto_remove_final
   crypto_remove_spawns
   crypto_req_done
   crypto_rng_reset
@@ -64,8 +61,8 @@
   crypto_skcipher_decrypt
   crypto_skcipher_encrypt
   crypto_skcipher_setkey
-  crypto_spawn_tfm
   crypto_spawn_tfm2
+  crypto_spawn_tfm
   crypto_unregister_aead
   crypto_unregister_alg
   crypto_unregister_rng
@@ -88,9 +85,9 @@
   kfree_sensitive
   __kmalloc
   kmalloc_caches
-  kmalloc_order_trace
   kmem_cache_alloc_trace
   kmemdup
+  ktime_get
   __list_add_valid
   __list_del_entry_valid
   memcpy
@@ -103,6 +100,9 @@
   preempt_schedule_notrace
   printk
   queue_work_on
+  ___ratelimit
+  _raw_spin_lock
+  _raw_spin_unlock
   refcount_warn_saturate
   scatterwalk_ffwd
   scatterwalk_map_and_copy
@@ -137,27 +137,3 @@
   tracepoint_probe_register
   up_write
   wait_for_completion
-
-# needed by fips140.ko but not identified by the tooling
-# TODO(b/189327973): [GKI: ABI] Build of fips140.ko module fails to identify some symbols
-  __crypto_memneq
-  __crypto_xor
-  aes_decrypt
-  aes_encrypt
-  aes_expandkey
-  ce_aes_expandkey
-  crypto_aes_inv_sbox
-  crypto_aes_sbox
-  crypto_aes_set_key
-  crypto_ft_tab
-  crypto_inc
-  crypto_it_tab
-  crypto_sha1_finup
-  crypto_sha1_update
-  gf128mul_lle
-  sha1_transform
-  sha224_final
-  sha256
-  sha256_block_data_order
-  sha256_final
-  sha256_update
-- 
GitLab


From 422bc2feb7e3e800a6c75a25795c7786794b7f2d Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 8 Oct 2021 12:49:20 -0700
Subject: [PATCH 0182/4878] ANDROID: fips140: use FIPS140_CFLAGS when compiling
 fips140-selftests.c

These flags are supposed to be used when building all source files for
the module.

Bug: 188620248
Fixes: b7397e89db29 ("ANDROID: fips140: add power-up cryptographic self-tests")
Change-Id: I41cacff040c8a8a0065dd3cfc537303f1ff18335
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/Makefile b/crypto/Makefile
index f353273de0181..bf5e547afc760 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -237,6 +237,7 @@ fips140-objs		:= fips140-module.o fips140-selftests.o crypto-fips.a
 obj-m			+= fips140.o
 
 CFLAGS_fips140-module.o += $(FIPS140_CFLAGS)
+CFLAGS_fips140-selftests.o += $(FIPS140_CFLAGS)
 
 hostprogs-always-y := fips140_gen_hmac
 HOSTLDLIBS_fips140_gen_hmac := -lcrypto -lelf
-- 
GitLab


From 6ae8277450ae86113cf7eea8b8348e509e2cc72d Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@google.com>
Date: Mon, 4 Oct 2021 11:33:03 +0000
Subject: [PATCH 0183/4878] ANDROID: module: apply special LTO treatment to
 .text even if CFI is disabled

We currently only emit directives for handling the .text section into
the module linker script if both LTO and CFI are enabled, while for
other sections, we do this even if CFI is not enabled. This is
inconsistent at best, but as it also interferes with the assumption in
the fips140.ko module that the .text._start and .text._end input
sections are placed at the very start and end of the .text section,
which currently can only be relied upon if CFI is enabled.

So rearrange the #ifdef so that it only covers the .text.__cfi_check
input section. Note that aligning to page size is likely to be redundant
in any case, given that the .text section is laid out first, and module
allocations are page aligned to begin with, so making that part
unconditional is unlikely to make an observeable difference in the
output.

Bug: 153614920
Bug: 188620248
Fixes: 6be141eb36fe ("ANDROID: crypto: fips140 - perform load time integrity check")
Change-Id: I3f9ed0ae8fa8fe5693c8d2964566cbb42c101aa7
Signed-off-by: Ard Biesheuvel <ardb@google.com>
---
 scripts/module.lds.S | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index 1713fc5383bbf..8b9dcec11d1e3 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -56,14 +56,16 @@ SECTIONS {
 		*(.rodata.._end)
 	}
 
-#ifdef CONFIG_CFI_CLANG
-	/*
-	 * With CFI_CLANG, ensure __cfi_check is at the beginning of the
-	 * .text section, and that the section is aligned to page size.
-	 */
 	.text : ALIGN(PAGE_SIZE) {
 		*(.text.._start)
+#ifdef CONFIG_CFI_CLANG
+		/*
+		 * With CFI_CLANG, ensure __cfi_check is at the beginning of
+		 * the .text section, and that the section is aligned to page
+		 * size.
+		 */
 		*(.text.__cfi_check)
+#endif
 		*(.text .text.[0-9a-zA-Z_]*)
 		__cfi_jt_start = .;
 		*(.text..L.cfi.jumptable .text..L.cfi.jumptable.*)
@@ -71,7 +73,6 @@ SECTIONS {
 		*(.text.._end)
 	}
 #endif
-#endif
 }
 
 /* bring in arch-specific sections */
-- 
GitLab


From 502af6e3490d3ed51cf2131306303445b0d56579 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@google.com>
Date: Fri, 1 Oct 2021 20:06:35 +0000
Subject: [PATCH 0184/4878] ANDROID: fips140: preserve RELA sections without
 relying on the module loader

Instead of having a special case in the core kernel's module loader that
treats a module called 'fips140.ko' in a special way, use a host tool to
tweak the ELF metadata of this module so that the RELA data is preserved
and accessible to the module init code.

This is done in the following way:
- each RELA section that we care about (the ones for .text and .rodata
  at the moment) is copied into a new section called .init.rela.<name>
  with the SHF_ALLOC attribute, so that the module loader will copy it
  into __init memory at load time;
- for each such section, an offset/count tuple is added as a global
  variable to the module;
- the count field of those tuples is populated directly by the host tool
  based on the actual size of the RELA section in question;
- the offset field is decorated with a place-relative relocation against
  the start of the copied RELA section via a weak symbol reference,
  which causes an entry to be emitted into the ELF symbol table;
- these ELF symbol table entries are updated by the host tool and turned
  into STT_SECTION type symbols with STB_GLOBAL linkage, carrying the
  correct section index.

With these changes in place, the unmodified module loader will load all
required information into memory in a way that permits the module init
code to locate the relocations, and apply them in reverse.

Bug: 153614920
Bug: 188620248
Change-Id: I07d9704febdf913834502dd09c19aa4a04d983b1
Signed-off-by: Ard Biesheuvel <ardb@google.com>
---
 arch/arm64/Makefile.postlink | 18 +++++++--
 crypto/Makefile              |  3 +-
 crypto/fips140-module.c      | 16 ++++----
 crypto/fips140-refs.S        | 34 +++++++++++++++++
 crypto/fips140_gen_hmac.c    | 73 ++++++++++++++++++++++++++++++++++--
 5 files changed, 128 insertions(+), 16 deletions(-)
 create mode 100644 crypto/fips140-refs.S

diff --git a/arch/arm64/Makefile.postlink b/arch/arm64/Makefile.postlink
index eedcf35f8d944..a13789148bfb6 100644
--- a/arch/arm64/Makefile.postlink
+++ b/arch/arm64/Makefile.postlink
@@ -3,8 +3,11 @@
 #
 # This file is included by the generic Kbuild makefile to permit the
 # architecture to perform postlink actions on vmlinux and any .ko module file.
-# In this case, we only need it for fips140.ko, which needs a HMAC digest to be
-# injected into it. All other targets are NOPs.
+# In this case, we only need it for fips140.ko, which needs some postprocessing
+# for the integrity check mandated by FIPS. This involves making copies of the
+# relocation sections so that the module will have access to them at
+# initialization time, and calculating and injecting a HMAC digest into the
+# module. All other targets are NOPs.
 #
 
 PHONY := __archpost
@@ -15,7 +18,14 @@ include scripts/Kbuild.include
 
 CMD_FIPS140_GEN_HMAC = crypto/fips140_gen_hmac
 quiet_cmd_gen_hmac = HMAC    $@
-      cmd_gen_hmac = $(CMD_FIPS140_GEN_HMAC) $@
+      cmd_gen_hmac = $(OBJCOPY) $@ \
+	--dump-section=$(shell $(READELF) -SW $@|grep -Eo '\.rela\.text\S*')=$@.rela.text \
+	--dump-section=$(shell $(READELF) -SW $@|grep -Eo '\.rela\.rodata\S*')=$@.rela.rodata \
+	--add-section=.init.rela.text=$@.rela.text \
+	--add-section=.init.rela.rodata=$@.rela.rodata \
+	--set-section-flags=.init.rela.text=alloc,readonly \
+	--set-section-flags=.init.rela.rodata=alloc,readonly && \
+	$(CMD_FIPS140_GEN_HMAC) $@
 
 # `@true` prevents complaints when there is nothing to be done
 
@@ -29,7 +39,7 @@ $(objtree)/crypto/fips140.ko: FORCE
 	@true
 
 clean:
-	@true
+	rm -f $(objtree)/crypto/fips140.ko.rela.*
 
 PHONY += FORCE clean
 
diff --git a/crypto/Makefile b/crypto/Makefile
index bf5e547afc760..bee803d812d2a 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -233,7 +233,8 @@ $(obj)/lib-crypto-%-fips.o: $(srctree)/lib/crypto/%.c FORCE
 $(obj)/crypto-fips.a: $(addprefix $(obj)/,$(crypto-fips-objs)) FORCE
 	$(call if_changed,ar_and_symver)
 
-fips140-objs		:= fips140-module.o fips140-selftests.o crypto-fips.a
+fips140-objs		:= fips140-module.o fips140-selftests.o crypto-fips.a \
+			   fips140-refs.o
 obj-m			+= fips140.o
 
 CFLAGS_fips140-module.o += $(FIPS140_CFLAGS)
diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 0be7642773e28..704b367ec562f 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -279,6 +279,11 @@ static void __init unapply_rodata_relocations(void *section, int section_size,
 	}
 }
 
+extern struct {
+	u32	offset;
+	u32	count;
+} fips140_rela_text, fips140_rela_rodata;
+
 static bool __init check_fips140_module_hmac(void)
 {
 	SHASH_DESC_ON_STACK(desc, dontcare);
@@ -306,15 +311,12 @@ static bool __init check_fips140_module_hmac(void)
 
 	// apply the relocations in reverse on the copies of .text  and .rodata
 	unapply_text_relocations(textcopy, textsize,
-				 __this_module.arch.text_relocations,
-				 __this_module.arch.num_text_relocations);
+				 offset_to_ptr(&fips140_rela_text.offset),
+				 fips140_rela_text.count);
 
 	unapply_rodata_relocations(rodatacopy, rodatasize,
-				   __this_module.arch.rodata_relocations,
-				   __this_module.arch.num_rodata_relocations);
-
-	kfree(__this_module.arch.text_relocations);
-	kfree(__this_module.arch.rodata_relocations);
+				  offset_to_ptr(&fips140_rela_rodata.offset),
+				  fips140_rela_rodata.count);
 
 	desc->tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);
 	if (IS_ERR(desc->tfm)) {
diff --git a/crypto/fips140-refs.S b/crypto/fips140-refs.S
new file mode 100644
index 0000000000000..fcbd527763231
--- /dev/null
+++ b/crypto/fips140-refs.S
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2021 Google LLC
+ * Author: Ard Biesheuvel <ardb@google.com>
+ *
+ * This file contains the variable definitions that will be used by the FIPS140
+ * s/w module to access the RELA sections in the ELF image. These are used to
+ * apply the relocations applied by the module loader in reverse, so that we
+ * can reconstruct the image that was used to derive the HMAC used by the
+ * integrity check.
+ *
+ * The first .long of each entry will be populated by the module loader based
+ * on the actual placement of the respective RELA section in memory. The second
+ * .long carries the RELA entry count, and is populated by the host tool that
+ * also generates the HMAC of the contents of .text and .rodata.
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+	.section	".init.rodata", "a"
+
+	.align	2
+	.globl	fips140_rela_text
+fips140_rela_text:
+	.weak	__sec_rela_text
+	.long	__sec_rela_text - .
+	.long	0
+
+	.globl	fips140_rela_rodata
+fips140_rela_rodata:
+	.weak	__sec_rela_rodata
+	.long	__sec_rela_rodata - .
+	.long	0
diff --git a/crypto/fips140_gen_hmac.c b/crypto/fips140_gen_hmac.c
index eebdc729ca994..69f754d38a1d6 100644
--- a/crypto/fips140_gen_hmac.c
+++ b/crypto/fips140_gen_hmac.c
@@ -28,7 +28,7 @@
 static Elf64_Ehdr *ehdr;
 static Elf64_Shdr *shdr;
 static int num_shdr;
-static const char *strtab;
+static const char *strtab, *shstrtab;
 static Elf64_Sym *syms;
 static int num_syms;
 
@@ -42,17 +42,78 @@ static Elf64_Shdr *find_symtab_section(void)
 	return NULL;
 }
 
-static void *get_sym_addr(const char *sym_name)
+static int get_section_idx(const char *name)
+{
+	int i;
+
+	for (i = 0; i < num_shdr; i++)
+		if (!strcmp(shstrtab + shdr[i].sh_name, name))
+			return i;
+	return -1;
+}
+
+static int get_sym_idx(const char *sym_name)
 {
 	int i;
 
 	for (i = 0; i < num_syms; i++)
 		if (!strcmp(strtab + syms[i].st_name, sym_name))
-			return (void *)ehdr + shdr[syms[i].st_shndx].sh_offset +
-			       syms[i].st_value;
+			return i;
+	return -1;
+}
+
+static void *get_sym_addr(const char *sym_name)
+{
+	int i = get_sym_idx(sym_name);
+
+	if (i >= 0)
+		return (void *)ehdr + shdr[syms[i].st_shndx].sh_offset +
+		       syms[i].st_value;
 	return NULL;
 }
 
+static int update_rela_ref(const char *name)
+{
+	/*
+	 * We need to do a couple of things to ensure that the copied RELA data
+	 * is accessible to the module itself at module init time:
+	 * - the associated entry in the symbol table needs to refer to the
+	 *   correct section index, and have SECTION type and GLOBAL linkage.
+	 * - the 'count' global variable in the module need to be set to the
+	 *   right value based on the size of the RELA section.
+	 */
+	unsigned int *size_var;
+	int sec_idx, sym_idx;
+	char str[32];
+
+	sprintf(str, "fips140_rela_%s", name);
+	size_var = get_sym_addr(str);
+	if (!size_var) {
+		printf("variable '%s' not found, disregarding .%s section\n",
+		       str, name);
+		return 1;
+	}
+
+	sprintf(str, "__sec_rela_%s", name);
+	sym_idx = get_sym_idx(str);
+
+	sprintf(str, ".init.rela.%s", name);
+	sec_idx = get_section_idx(str);
+
+	if (sec_idx < 0 || sym_idx < 0) {
+		fprintf(stderr, "failed to locate metadata for .%s section in binary\n",
+			name);
+		return 0;
+	}
+
+	syms[sym_idx].st_shndx = sec_idx;
+	syms[sym_idx].st_info = (STB_GLOBAL << 4) | STT_SECTION;
+
+	size_var[1] = shdr[sec_idx].sh_size / sizeof(Elf64_Rela);
+
+	return 1;
+}
+
 static void hmac_section(HMAC_CTX *hmac, const char *start, const char *end)
 {
 	void *start_addr = get_sym_addr(start);
@@ -103,6 +164,10 @@ int main(int argc, char **argv)
 	num_syms = symtab_shdr->sh_size / sizeof(Elf64_Sym);
 
 	strtab = (void *)ehdr + shdr[symtab_shdr->sh_link].sh_offset;
+	shstrtab = (void *)ehdr + shdr[ehdr->e_shstrndx].sh_offset;
+
+	if (!update_rela_ref("text") || !update_rela_ref("rodata"))
+		exit(EXIT_FAILURE);
 
 	hmac_key = get_sym_addr("fips140_integ_hmac_key");
 	if (!hmac_key) {
-- 
GitLab


From 360fd2c40208b2c8522ceed9d5b3107c7bb2b086 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@google.com>
Date: Fri, 1 Oct 2021 20:08:32 +0000
Subject: [PATCH 0185/4878] ANDROID: arm64: module: remove FIPS-140 hack from
 module loader

We no longer rely on the module loader treating a module called
'fips140.ko' in a special way, so let's remove this terrible code.

Bug: 153614920
Bug: 188620248
Change-Id: I05da5fd6308eafae641bb403e3522f9fa58333be
Signed-off-by: Ard Biesheuvel <ardb@google.com>
---
 arch/arm64/include/asm/module.h |  6 ------
 arch/arm64/kernel/module-plts.c | 34 ---------------------------------
 2 files changed, 40 deletions(-)

diff --git a/arch/arm64/include/asm/module.h b/arch/arm64/include/asm/module.h
index 65fc16f2c2850..4e7fa2623896b 100644
--- a/arch/arm64/include/asm/module.h
+++ b/arch/arm64/include/asm/module.h
@@ -20,12 +20,6 @@ struct mod_arch_specific {
 
 	/* for CONFIG_DYNAMIC_FTRACE */
 	struct plt_entry	*ftrace_trampolines;
-
-	/* for FIPS 140 certified kernel module */
-	const Elf64_Rela	*text_relocations;
-	const Elf64_Rela	*rodata_relocations;
-	int			num_text_relocations;
-	int			num_rodata_relocations;
 };
 #endif
 
diff --git a/arch/arm64/kernel/module-plts.c b/arch/arm64/kernel/module-plts.c
index cee0781112d40..2e224435c0249 100644
--- a/arch/arm64/kernel/module-plts.c
+++ b/arch/arm64/kernel/module-plts.c
@@ -7,7 +7,6 @@
 #include <linux/ftrace.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/slab.h>
 #include <linux/sort.h>
 
 static struct plt_entry __get_adrp_add_pair(u64 dst, u64 pc,
@@ -291,7 +290,6 @@ static int partition_branch_plt_relas(Elf64_Sym *syms, Elf64_Rela *rela,
 int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 			      char *secstrings, struct module *mod)
 {
-	bool copy_rela_for_fips140 = false;
 	unsigned long core_plts = 0;
 	unsigned long init_plts = 0;
 	Elf64_Sym *syms = NULL;
@@ -323,10 +321,6 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 		return -ENOEXEC;
 	}
 
-	if (IS_ENABLED(CONFIG_CRYPTO_FIPS140) &&
-	    !strcmp(mod->name, "fips140"))
-		copy_rela_for_fips140 = true;
-
 	for (i = 0; i < ehdr->e_shnum; i++) {
 		Elf64_Rela *rels = (void *)ehdr + sechdrs[i].sh_offset;
 		int nents, numrels = sechdrs[i].sh_size / sizeof(Elf64_Rela);
@@ -335,38 +329,10 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 		if (sechdrs[i].sh_type != SHT_RELA)
 			continue;
 
-#ifdef CONFIG_CRYPTO_FIPS140
-		if (copy_rela_for_fips140 &&
-		    !strcmp(secstrings + dstsec->sh_name, ".rodata")) {
-			void *p = kmemdup(rels, numrels * sizeof(Elf64_Rela),
-					  GFP_KERNEL);
-			if (!p) {
-				pr_err("fips140: failed to allocate .rodata RELA buffer\n");
-				return -ENOMEM;
-			}
-			mod->arch.rodata_relocations = p;
-			mod->arch.num_rodata_relocations = numrels;
-		}
-#endif
-
 		/* ignore relocations that operate on non-exec sections */
 		if (!(dstsec->sh_flags & SHF_EXECINSTR))
 			continue;
 
-#ifdef CONFIG_CRYPTO_FIPS140
-		if (copy_rela_for_fips140 &&
-		    !strcmp(secstrings + dstsec->sh_name, ".text")) {
-			void *p = kmemdup(rels, numrels * sizeof(Elf64_Rela),
-					  GFP_KERNEL);
-			if (!p) {
-				pr_err("fips140: failed to allocate .text RELA buffer\n");
-				return -ENOMEM;
-			}
-			mod->arch.text_relocations = p;
-			mod->arch.num_text_relocations = numrels;
-		}
-#endif
-
 		/*
 		 * sort branch relocations requiring a PLT by type, symbol index
 		 * and addend
-- 
GitLab


From 794a927156deaa2a051a3ffe71bc8370ea8da686 Mon Sep 17 00:00:00 2001
From: Pavel Hofman <pavel.hofman@ivitera.com>
Date: Mon, 6 Sep 2021 15:08:22 +0200
Subject: [PATCH 0186/4878] UPSTREAM: usb: gadget: u_audio: EP-OUT bInterval in
 fback frequency

The patch increases the bitshift in feedback frequency
calculation with EP-OUT bInterval value.

Tests have revealed that Win10 and OSX UAC2 drivers require
the feedback frequency to be based on the actual packet
interval instead of on the USB2 microframe. Otherwise they
ignore the feedback value. Linux snd-usb-audio driver
detects the applied bitshift automatically.

Tested-by: Henrik Enquist <henrik.enquist@gmail.com>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210906130822.12256-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 199044440
Change-Id: Idf8f1c6cde108d7527be4cdd030d87ec645252fd
(cherry picked from commit f5dfd98a80ff8d50cf4ae2820857d7f5a46cbab9)
Signed-off-by: Jack Pham <jackp@codeaurora.org>
---
 drivers/usb/gadget/function/u_audio.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c
index 5223bc09c1a5b..e35a66aec941b 100644
--- a/drivers/usb/gadget/function/u_audio.c
+++ b/drivers/usb/gadget/function/u_audio.c
@@ -76,11 +76,13 @@ static const struct snd_pcm_hardware uac_pcm_hardware = {
 };
 
 static void u_audio_set_fback_frequency(enum usb_device_speed speed,
+					struct usb_ep *out_ep,
 					unsigned long long freq,
 					unsigned int pitch,
 					void *buf)
 {
 	u32 ff = 0;
+	const struct usb_endpoint_descriptor *ep_desc;
 
 	/*
 	 * Because the pitch base is 1000000, the final divider here
@@ -108,8 +110,13 @@ static void u_audio_set_fback_frequency(enum usb_device_speed speed,
 		 * byte fromat (that is Q16.16)
 		 *
 		 * ff = (freq << 16) / 8000
+		 *
+		 * Win10 and OSX UAC2 drivers require number of samples per packet
+		 * in order to honor the feedback value.
+		 * Linux snd-usb-audio detects the applied bit-shift automatically.
 		 */
-		freq <<= 4;
+		ep_desc = out_ep->desc;
+		freq <<= 4 + (ep_desc->bInterval - 1);
 	}
 
 	ff = DIV_ROUND_CLOSEST_ULL((freq * pitch), 1953125);
@@ -247,7 +254,7 @@ static void u_audio_iso_fback_complete(struct usb_ep *ep,
 		pr_debug("%s: iso_complete status(%d) %d/%d\n",
 			__func__, status, req->actual, req->length);
 
-	u_audio_set_fback_frequency(audio_dev->gadget->speed,
+	u_audio_set_fback_frequency(audio_dev->gadget->speed, audio_dev->out_ep,
 				    params->c_srate, prm->pitch,
 				    req->buf);
 
@@ -506,7 +513,7 @@ int u_audio_start_capture(struct g_audio *audio_dev)
 	 * be meauserd at start of playback
 	 */
 	prm->pitch = 1000000;
-	u_audio_set_fback_frequency(audio_dev->gadget->speed,
+	u_audio_set_fback_frequency(audio_dev->gadget->speed, ep,
 				    params->c_srate, prm->pitch,
 				    req_fback->buf);
 
-- 
GitLab


From 0db720fb4e964f1cc31dd8fa2006ccc88c5274f0 Mon Sep 17 00:00:00 2001
From: Pavel Hofman <pavel.hofman@ivitera.com>
Date: Fri, 24 Sep 2021 10:00:27 +0200
Subject: [PATCH 0187/4878] UPSTREAM: usb: gadget: f_uac2: fixed EP-IN
 wMaxPacketSize

Async feedback patches broke enumeration on Windows 10 previously fixed
by commit 789ea77310f0 ("usb: gadget: f_uac2: always increase endpoint
max_packet_size by one audio slot").

While the existing calculation for EP OUT capture for async mode yields
size+1 frame due to uac2_opts->fb_max > 0, playback side lost the +1
feature.  Therefore the +1 frame addition must be re-introduced for
playback. Win10 enumerates the device only when both EP IN and EP OUT
max packet sizes are (at least) +1 frame.

Fixes: e89bb4288378 ("usb: gadget: u_audio: add real feedback implementation")
Cc: stable <stable@vger.kernel.org>
Tested-by: Henrik Enquist <henrik.enquist@gmail.com>
Tested-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20210924080027.5362-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 199044440
Change-Id: I74994d717b0eb543104e3ed7b20ca06c7c584be9
(cherry picked from commit 0560c9c552c1815e7b480bc11fd785fefc82bb27)
Signed-off-by: Jack Pham <jackp@codeaurora.org>
---
 drivers/usb/gadget/function/f_uac2.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index 37c94031af1ed..53cb6b2637a09 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -593,11 +593,17 @@ static int set_ep_max_packet_size(const struct f_uac2_opts *uac2_opts,
 		ssize = uac2_opts->c_ssize;
 	}
 
-	if (!is_playback && (uac2_opts->c_sync == USB_ENDPOINT_SYNC_ASYNC))
+	if (!is_playback && (uac2_opts->c_sync == USB_ENDPOINT_SYNC_ASYNC)) {
+	  // Win10 requires max packet size + 1 frame
 		srate = srate * (1000 + uac2_opts->fb_max) / 1000;
-
-	max_size_bw = num_channels(chmask) * ssize *
-		DIV_ROUND_UP(srate, factor / (1 << (ep_desc->bInterval - 1)));
+		// updated srate is always bigger, therefore DIV_ROUND_UP always yields +1
+		max_size_bw = num_channels(chmask) * ssize *
+			(DIV_ROUND_UP(srate, factor / (1 << (ep_desc->bInterval - 1))));
+	} else {
+		// adding 1 frame provision for Win10
+		max_size_bw = num_channels(chmask) * ssize *
+			(DIV_ROUND_UP(srate, factor / (1 << (ep_desc->bInterval - 1))) + 1);
+	}
 	ep_desc->wMaxPacketSize = cpu_to_le16(min_t(u16, max_size_bw,
 						    max_size_ep));
 
-- 
GitLab


From 96ba6e3e5ebafa7111689bafa6b17d3701db1783 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 3 Aug 2021 09:15:12 -0700
Subject: [PATCH 0188/4878] FROMGIT: blk-mq: Introduce the
 BLK_MQ_F_NO_SCHED_BY_DEFAULT flag

elevator_get_default() uses the following algorithm to select an I/O
scheduler from inside add_disk():
- In case of a single hardware queue or sharing hardware queues across
  multiple request queues (BLK_MQ_F_TAG_HCTX_SHARED), use mq-deadline.
- Otherwise, use 'none'.

This is a good choice for most but not for all block drivers. Make it
possible to override the selection of mq-deadline with a new flag,
namely BLK_MQ_F_NO_SCHED_BY_DEFAULT.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Bug: 194450129
(cherry picked from commit 90b7198001f23ea37d3b46dc631bdaa2357a20b1 git://git.kernel.dk/linux-block/ for-5.15/block)
Change-Id: I4fb658957c193f350e74bdb5876c20a8f628fcb1
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 block/elevator.c       | 3 +++
 include/linux/blk-mq.h | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/block/elevator.c b/block/elevator.c
index 2a525863d4e92..4ce6b22813a14 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -624,6 +624,9 @@ static inline bool elv_support_iosched(struct request_queue *q)
  */
 static struct elevator_type *elevator_get_default(struct request_queue *q)
 {
+	if (q->tag_set && q->tag_set->flags & BLK_MQ_F_NO_SCHED_BY_DEFAULT)
+		return NULL;
+
 	if (q->nr_hw_queues != 1)
 		return NULL;
 
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 1626eb27be246..a2aa73d8437a0 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -394,7 +394,13 @@ enum {
 	BLK_MQ_F_STACKING	= 1 << 2,
 	BLK_MQ_F_TAG_HCTX_SHARED = 1 << 3,
 	BLK_MQ_F_BLOCKING	= 1 << 5,
+	/* Do not allow an I/O scheduler to be configured. */
 	BLK_MQ_F_NO_SCHED	= 1 << 6,
+	/*
+	 * Select 'none' during queue registration in case of a single hwq
+	 * or shared hwqs instead of 'mq-deadline'.
+	 */
+	BLK_MQ_F_NO_SCHED_BY_DEFAULT	= 1 << 7,
 	BLK_MQ_F_ALLOC_POLICY_START_BIT = 8,
 	BLK_MQ_F_ALLOC_POLICY_BITS = 1,
 
-- 
GitLab


From d3e0de546d88c55c8a096a971c7377c5dae743e7 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Mon, 2 Aug 2021 10:05:29 -0700
Subject: [PATCH 0189/4878] FROMGIT: loop: Select I/O scheduler 'none' from
 inside add_disk()

We noticed that the user interface of Android devices becomes very slow
under memory pressure. This is because Android uses the zram driver on top
of the loop driver for swapping, because under memory pressure the swap
code alternates reads and writes quickly, because mq-deadline is the
default scheduler for loop devices and because mq-deadline delays writes by
five seconds for such a workload with default settings. Fix this by making
the kernel select I/O scheduler 'none' from inside add_disk() for loop
devices. This default can be overridden at any time from user space,
e.g. via a udev rule. This approach has an advantage compared to changing
the I/O scheduler from userspace from 'mq-deadline' into 'none', namely
that synchronize_rcu() does not get called.

Additionally, this patch reduces the Android boot time on my test setup
with 0.5 seconds compared to configuring the loop I/O scheduler from user
space.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Bug: 194450129
(cherry picked from commit 2112f5c1330a671fa852051d85cb9eadc05d7eb7 git://git.kernel.dk/linux-block/ for-5.15/block)
Change-Id: I6f9579b4cd2cb22fcb5c858d4f292f1870336fdd
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/block/loop.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f0fa0c8e7ec60..32f0ec984fff7 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -2117,7 +2117,8 @@ static int loop_add(struct loop_device **l, int i)
 	lo->tag_set.queue_depth = 128;
 	lo->tag_set.numa_node = NUMA_NO_NODE;
 	lo->tag_set.cmd_size = sizeof(struct loop_cmd);
-	lo->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_STACKING;
+	lo->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_STACKING |
+		BLK_MQ_F_NO_SCHED_BY_DEFAULT;
 	lo->tag_set.driver_data = lo;
 
 	err = blk_mq_alloc_tag_set(&lo->tag_set);
-- 
GitLab


From 2c6430620492f84f4168d4994584c5623570b241 Mon Sep 17 00:00:00 2001
From: Will McVicker <willmcvicker@google.com>
Date: Tue, 12 Oct 2021 14:48:13 -0700
Subject: [PATCH 0190/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 196974386
Signed-off-by: Will McVicker <willmcvicker@google.com>
Change-Id: Ib5ab45cde5ed8c0b955427dcf284cc487b68337e
---
 android/abi_gki_aarch64_generic | 97 +++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index c15760dce6892..56668a860dd46 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -54,6 +54,7 @@
   __bitmap_andnot
   __bitmap_clear
   __bitmap_equal
+  bitmap_from_arr32
   __bitmap_or
   bitmap_parse
   bitmap_parselist
@@ -66,6 +67,7 @@
   blkdev_put
   blk_execute_rq_nowait
   blk_get_request
+  blk_ksm_init_passthrough
   blk_put_request
   blk_queue_flag_clear
   blk_queue_flag_set
@@ -155,6 +157,7 @@
   clk_get
   __clk_get_hw
   __clk_get_name
+  clk_get_parent
   clk_get_rate
   clk_hw_get_name
   clk_hw_get_parent
@@ -172,6 +175,8 @@
   clocks_calc_mult_shift
   __clocksource_register_scale
   cma_alloc
+  cma_for_each_area
+  cma_get_name
   cma_release
   compat_alloc_user_space
   complete
@@ -262,6 +267,7 @@
   crypto_comp_compress
   crypto_comp_decompress
   crypto_destroy_tfm
+  __crypto_memneq
   crypto_register_alg
   crypto_register_scomp
   crypto_shash_digest
@@ -271,6 +277,8 @@
   crypto_skcipher_setkey
   crypto_unregister_alg
   crypto_unregister_scomp
+  csum_ipv6_magic
+  csum_tcpudp_nofold
   _ctype
   debugfs_attr_read
   debugfs_attr_write
@@ -300,12 +308,18 @@
   dev_driver_string
   _dev_emerg
   _dev_err
+  dev_err_probe
   devfreq_add_device
   devfreq_add_governor
+  devfreq_monitor_resume
+  devfreq_monitor_start
+  devfreq_monitor_stop
+  devfreq_monitor_suspend
   devfreq_recommended_opp
   devfreq_register_opp_notifier
   devfreq_remove_device
   devfreq_unregister_opp_notifier
+  devfreq_update_interval
   dev_fwnode
   dev_get_by_name
   device_add_disk
@@ -325,6 +339,7 @@
   device_link_del
   device_property_present
   device_property_read_string
+  device_property_read_string_array
   device_property_read_u32_array
   device_register
   device_remove_file
@@ -341,6 +356,8 @@
   devm_blk_ksm_init
   devm_clk_get
   devm_clk_get_optional
+  devm_clk_hw_register
+  devm_clk_hw_register_clkdev
   devm_clk_put
   devm_device_add_groups
   __devm_drm_dev_alloc
@@ -373,6 +390,7 @@
   devm_kstrdup_const
   devm_mfd_add_devices
   devm_nvmem_register
+  devm_of_clk_add_hw_provider
   __devm_of_phy_provider_register
   devm_of_platform_populate
   devm_phy_create
@@ -391,6 +409,7 @@
   __devm_regmap_init_spi
   devm_regulator_bulk_get
   devm_regulator_get
+  devm_regulator_get_exclusive
   devm_regulator_get_optional
   devm_regulator_put
   devm_regulator_register
@@ -400,6 +419,7 @@
   devm_snd_soc_register_component
   devm_thermal_of_cooling_device_register
   devm_thermal_zone_of_sensor_register
+  devm_thermal_zone_of_sensor_unregister
   devm_usb_get_phy_by_phandle
   _dev_notice
   dev_pm_domain_attach_by_name
@@ -501,9 +521,12 @@
   down_read
   down_read_trylock
   down_timeout
+  down_trylock
   down_write
   drain_workqueue
+  driver_create_file
   driver_register
+  driver_remove_file
   driver_unregister
   drm_add_modes_noedid
   drm_atomic_add_affected_connectors
@@ -828,12 +851,17 @@
   have_governor_per_policy
   hex2bin
   hex_dump_to_buffer
+  hex_to_bin
   hrtimer_active
   hrtimer_cancel
   hrtimer_forward
   hrtimer_init
+  hrtimer_init_sleeper
+  hrtimer_sleeper_start_expires
   hrtimer_start_range_ns
   hrtimer_try_to_cancel
+  hwrng_register
+  hwrng_unregister
   i2c_adapter_type
   i2c_add_numbered_adapter
   i2c_bus_type
@@ -847,6 +875,8 @@
   i2c_new_dummy_device
   i2c_put_adapter
   i2c_register_driver
+  i2c_smbus_read_byte_data
+  i2c_smbus_write_byte_data
   i2c_smbus_xfer
   i2c_transfer
   i2c_transfer_buffer_flags
@@ -865,6 +895,8 @@
   ieee80211_get_channel_khz
   iio_device_unregister
   import_iovec
+  in6_pton
+  in_aton
   inc_zone_page_state
   init_dummy_netdev
   init_net
@@ -933,6 +965,7 @@
   io_schedule_timeout
   iounmap
   iov_iter_bvec
+  ip_send_check
   iput
   __irq_alloc_descs
   irq_create_mapping_affinity
@@ -982,6 +1015,7 @@
   kimage_voffset
   __kmalloc
   kmalloc_caches
+  kmalloc_order
   kmalloc_order_trace
   kmem_cache_alloc
   kmem_cache_alloc_trace
@@ -996,6 +1030,7 @@
   kobject_init_and_add
   kobject_put
   kobject_uevent
+  kobject_uevent_env
   kobj_sysfs_ops
   krealloc
   kstat
@@ -1051,11 +1086,13 @@
   log_abnormal_wakeup_reason
   __log_post_read_mmio
   __log_read_mmio
+  log_threaded_irq_wakeup_reason
   __log_write_mmio
   loops_per_jiffy
   lzo1x_1_compress
   lzo1x_decompress_safe
   lzorle1x_1_compress
+  mac_pton
   mbox_chan_received_data
   mbox_controller_register
   mbox_controller_unregister
@@ -1103,6 +1140,7 @@
   module_put
   __msecs_to_jiffies
   msleep
+  msleep_interruptible
   __mutex_init
   mutex_is_locked
   mutex_lock
@@ -1128,6 +1166,7 @@
   __netlink_kernel_create
   netlink_kernel_release
   netlink_unicast
+  net_ratelimit
   nla_memcpy
   __nla_parse
   nla_put
@@ -1151,8 +1190,10 @@
   of_clk_add_provider
   of_clk_get
   of_clk_get_by_name
+  of_clk_hw_simple_get
   of_clk_src_onecell_get
   of_count_phandle_with_args
+  of_cpu_node_to_id
   of_device_get_match_data
   of_device_is_available
   of_device_is_compatible
@@ -1183,6 +1224,7 @@
   of_get_regulator_init_data
   of_iomap
   of_irq_find_parent
+  of_irq_get
   of_irq_get_byname
   of_irq_parse_one
   of_machine_is_compatible
@@ -1216,6 +1258,8 @@
   of_reserved_mem_lookup
   of_root
   of_thermal_get_ntrips
+  of_thermal_get_trip_points
+  of_thermal_is_trip_valid
   of_translate_address
   of_usb_host_tpl_support
   page_endio
@@ -1269,6 +1313,7 @@
   perf_event_disable
   perf_event_enable
   perf_event_pause
+  perf_event_read_local
   perf_event_read_value
   perf_event_release_kernel
   perf_event_update_userpage
@@ -1295,6 +1340,7 @@
   pin_user_pages
   pin_user_pages_fast
   pin_user_pages_remote
+  pktgen_xfrm_outer_mode_output
   platform_bus_type
   platform_device_add
   platform_device_add_data
@@ -1348,6 +1394,7 @@
   power_supply_set_property
   power_supply_unregister
   power_supply_unreg_notifier
+  prandom_u32
   preempt_schedule
   preempt_schedule_notrace
   prepare_to_wait
@@ -1362,7 +1409,9 @@
   proc_dostring
   proc_douintvec_minmax
   proc_mkdir
+  proc_mkdir_data
   proc_remove
+  pskb_expand_head
   __pskb_pull_tail
   put_device
   put_disk
@@ -1426,6 +1475,7 @@
   register_netdevice
   register_netdevice_notifier
   register_oom_notifier
+  register_pernet_subsys
   register_pm_notifier
   register_reboot_notifier
   register_restart_handler
@@ -1499,6 +1549,9 @@
   rtc_tm_to_time64
   rtc_update_irq
   rtc_valid_tm
+  __rt_mutex_init
+  rt_mutex_lock
+  rt_mutex_unlock
   rtnl_is_locked
   rtnl_lock
   rtnl_unlock
@@ -1551,6 +1604,7 @@
   seq_write
   set_blocksize
   set_cpus_allowed_ptr
+  set_freezable
   set_normalized_timespec64
   set_page_dirty
   set_page_dirty_lock
@@ -1579,6 +1633,7 @@
   single_open
   single_open_size
   single_release
+  skb_checksum
   skb_clone
   skb_copy
   skb_copy_expand
@@ -1620,15 +1675,22 @@
   snd_soc_component_enable_pin
   snd_soc_component_force_enable_pin
   snd_soc_component_get_pin_status
+  snd_soc_component_read
   snd_soc_component_set_jack
   snd_soc_component_set_pll
   snd_soc_component_set_sysclk
+  snd_soc_component_update_bits
+  snd_soc_component_write
   snd_soc_dai_set_pll
   snd_soc_dai_set_sysclk
   snd_soc_dai_set_tdm_slot
   snd_soc_dapm_add_routes
   snd_soc_dapm_del_routes
+  snd_soc_dapm_disable_pin
+  snd_soc_dapm_disable_pin_unlocked
+  snd_soc_dapm_force_enable_pin_unlocked
   snd_soc_dapm_get_enum_double
+  snd_soc_dapm_get_pin_status
   snd_soc_dapm_get_volsw
   snd_soc_dapm_ignore_suspend
   snd_soc_dapm_kcontrol_widget
@@ -1637,6 +1699,7 @@
   snd_soc_dapm_put_enum_double
   snd_soc_dapm_put_volsw
   snd_soc_dapm_sync
+  snd_soc_dapm_sync_unlocked
   snd_soc_get_enum_double
   snd_soc_get_volsw
   snd_soc_get_volsw_range
@@ -1645,12 +1708,15 @@
   snd_soc_info_volsw
   snd_soc_info_volsw_range
   snd_soc_info_volsw_sx
+  snd_soc_jack_report
   snd_soc_lookup_component
   snd_soc_new_compress
   snd_soc_of_get_dai_link_codecs
   snd_soc_of_get_dai_name
   snd_soc_of_parse_card_name
   snd_soc_of_parse_daifmt
+  snd_soc_params_to_bclk
+  snd_soc_params_to_frame_size
   snd_soc_put_enum_double
   snd_soc_put_volsw
   snd_soc_put_volsw_range
@@ -1666,6 +1732,8 @@
   softnet_data
   sort
   __spi_alloc_controller
+  spi_bus_lock
+  spi_bus_unlock
   spi_controller_resume
   spi_controller_suspend
   spi_finalize_current_message
@@ -1673,10 +1741,15 @@
   __spi_register_driver
   spi_setup
   spi_sync
+  spi_sync_locked
   spi_unregister_controller
   split_page
   sprintf
   sprint_symbol
+  srcu_init_notifier_head
+  srcu_notifier_call_chain
+  srcu_notifier_chain_register
+  srcu_notifier_chain_unregister
   sscanf
   __stack_chk_fail
   static_key_disable
@@ -1700,6 +1773,7 @@
   strncmp
   strncpy
   strncpy_from_user
+  strndup_user
   strnlen
   strnstr
   strpbrk
@@ -1740,6 +1814,7 @@
   system_freezing_cnt
   system_highpri_wq
   system_long_wq
+  system_power_efficient_wq
   system_state
   system_unbound_wq
   system_wq
@@ -1751,6 +1826,7 @@
   __task_pid_nr_ns
   task_rq_lock
   tcpci_get_tcpm_port
+  tcpci_irq
   tcpci_register_port
   tcpci_unregister_port
   tcpm_cc_change
@@ -1804,12 +1880,17 @@
   __traceiter_android_rvh_ufs_reprogram_all_keys
   __traceiter_android_rvh_util_est_update
   __traceiter_android_vh_arch_set_freq_scale
+  __traceiter_android_vh_cma_alloc_finish
+  __traceiter_android_vh_cma_alloc_start
   __traceiter_android_vh_cpu_idle_enter
   __traceiter_android_vh_cpu_idle_exit
   __traceiter_android_vh_enable_thermal_genl_check
   __traceiter_android_vh_ep_create_wakeup_source
   __traceiter_android_vh_ipi_stop
+  __traceiter_android_vh_meminfo_proc_show
   __traceiter_android_vh_of_i2c_get_board_info
+  __traceiter_android_vh_pagecache_get_page
+  __traceiter_android_vh_rmqueue
   __traceiter_android_vh_setscheduler_uclamp
   __traceiter_android_vh_snd_compr_use_pause_in_drain
   __traceiter_android_vh_sysrq_crash
@@ -1834,6 +1915,8 @@
   __traceiter_dwc3_readl
   __traceiter_dwc3_writel
   __traceiter_gpu_mem_total
+  __traceiter_mm_vmscan_direct_reclaim_begin
+  __traceiter_mm_vmscan_direct_reclaim_end
   __traceiter_pelt_cfs_tp
   __traceiter_pelt_dl_tp
   __traceiter_pelt_irq_tp
@@ -1869,12 +1952,17 @@
   __tracepoint_android_rvh_ufs_reprogram_all_keys
   __tracepoint_android_rvh_util_est_update
   __tracepoint_android_vh_arch_set_freq_scale
+  __tracepoint_android_vh_cma_alloc_finish
+  __tracepoint_android_vh_cma_alloc_start
   __tracepoint_android_vh_cpu_idle_enter
   __tracepoint_android_vh_cpu_idle_exit
   __tracepoint_android_vh_enable_thermal_genl_check
   __tracepoint_android_vh_ep_create_wakeup_source
   __tracepoint_android_vh_ipi_stop
+  __tracepoint_android_vh_meminfo_proc_show
   __tracepoint_android_vh_of_i2c_get_board_info
+  __tracepoint_android_vh_pagecache_get_page
+  __tracepoint_android_vh_rmqueue
   __tracepoint_android_vh_setscheduler_uclamp
   __tracepoint_android_vh_snd_compr_use_pause_in_drain
   __tracepoint_android_vh_sysrq_crash
@@ -1899,6 +1987,8 @@
   __tracepoint_dwc3_readl
   __tracepoint_dwc3_writel
   __tracepoint_gpu_mem_total
+  __tracepoint_mm_vmscan_direct_reclaim_begin
+  __tracepoint_mm_vmscan_direct_reclaim_end
   __tracepoint_pelt_cfs_tp
   __tracepoint_pelt_dl_tp
   __tracepoint_pelt_irq_tp
@@ -1947,6 +2037,7 @@
   uart_write_wakeup
   uclamp_eff_value
   __udelay
+  udp4_hwcsum
   ufshcd_bkops_ctrl
   ufshcd_hold
   ufshcd_pltfrm_init
@@ -1972,6 +2063,7 @@
   unregister_netdevice_notifier
   unregister_netdevice_queue
   unregister_oom_notifier
+  unregister_pernet_subsys
   unregister_pm_notifier
   unregister_reboot_notifier
   unregister_shrinker
@@ -2109,6 +2201,7 @@
   vsscanf
   vunmap
   vzalloc
+  vzalloc_node
   wait_for_completion
   wait_for_completion_interruptible_timeout
   wait_for_completion_timeout
@@ -2121,6 +2214,7 @@
   wakeup_source_destroy
   wakeup_source_register
   wakeup_source_unregister
+  __wake_up_sync
   __warn_printk
   watchdog_init_timeout
   watchdog_register_device
@@ -2133,6 +2227,9 @@
   wiphy_unregister
   woken_wake_function
   work_busy
+  __xfrm_state_destroy
+  xfrm_state_lookup_byspi
+  xfrm_stateonly_find
   xhci_address_device
   xhci_bus_resume
   xhci_bus_suspend
-- 
GitLab


From 16d728110bd76d1ebb4aad8bcf36596f7ce11be0 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 21 Sep 2021 16:34:42 +0200
Subject: [PATCH 0191/4878] Partially revert "usb: Kconfig: using select for
 USB_COMMON dependency"

commit 4d1aa9112c8e6995ef2c8a76972c9671332ccfea upstream.

This reverts commit cb9c1cfc86926d0e86d19c8e34f6c23458cd3478 for
USB_LED_TRIG.  This config symbol has bool type and enables extra code
in usb_common itself, not a separate driver.  Enabling it should not
force usb_common to be built-in!

Fixes: cb9c1cfc8692 ("usb: Kconfig: using select for USB_COMMON dependency")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Link: https://lore.kernel.org/r/20210921143442.340087-1-carnil@debian.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/common/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/common/Kconfig b/drivers/usb/common/Kconfig
index 5e8a04e3dd3c8..b856622431a73 100644
--- a/drivers/usb/common/Kconfig
+++ b/drivers/usb/common/Kconfig
@@ -6,8 +6,7 @@ config USB_COMMON
 
 config USB_LED_TRIG
 	bool "USB LED Triggers"
-	depends on LEDS_CLASS && LEDS_TRIGGERS
-	select USB_COMMON
+	depends on LEDS_CLASS && USB_COMMON && LEDS_TRIGGERS
 	help
 	  This option adds LED triggers for USB host and/or gadget activity.
 
-- 
GitLab


From b3265b88e83b16c7be762fa5fb7e0632bce0002c Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Tue, 21 Sep 2021 08:37:54 -0300
Subject: [PATCH 0192/4878] usb: chipidea: ci_hdrc_imx: Also search for 'phys'
 phandle

commit 8253a34bfae3278baca52fc1209b7c29270486ca upstream.

When passing 'phys' in the devicetree to describe the USB PHY phandle
(which is the recommended way according to
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the
following NULL pointer dereference is observed on i.MX7 and i.MX8MM:

[    1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098
[    1.498170] Mem abort info:
[    1.500966]   ESR = 0x96000044
[    1.504030]   EC = 0x25: DABT (current EL), IL = 32 bits
[    1.509356]   SET = 0, FnV = 0
[    1.512416]   EA = 0, S1PTW = 0
[    1.515569]   FSC = 0x04: level 0 translation fault
[    1.520458] Data abort info:
[    1.523349]   ISV = 0, ISS = 0x00000044
[    1.527196]   CM = 0, WnR = 1
[    1.530176] [0000000000000098] user address but active_mm is swapper
[    1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP
[    1.542125] Modules linked in:
[    1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3
[    1.551901] Hardware name: Kontron i.MX8MM N801X S (DT)
[    1.557133] Workqueue: events_unbound deferred_probe_work_func
[    1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)
[    1.568998] pc : imx7d_charger_detection+0x3f0/0x510
[    1.573973] lr : imx7d_charger_detection+0x22c/0x510

This happens because the charger functions check for the phy presence
inside the imx_usbmisc_data structure (data->usb_phy), but the chipidea
core populates the usb_phy passed via 'phys' inside 'struct ci_hdrc'
(ci->usb_phy) instead.

This causes the NULL pointer dereference inside imx7d_charger_detection().

Fix it by also searching for 'phys' in case 'fsl,usbphy' is not found.

Tested on a imx7s-warp board.

Fixes: 746f316b753a ("usb: chipidea: introduce imx7d USB charger detection")
Cc: stable@vger.kernel.org
Reported-by: Heiko Thiery <heiko.thiery@gmail.com>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Acked-by: Peter Chen <peter.chen@kernel.org>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210921113754.767631-1-festevam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index ee565bdb44d65..b4c6527fe5f66 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -425,11 +425,16 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 	data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0);
 	if (IS_ERR(data->phy)) {
 		ret = PTR_ERR(data->phy);
-		/* Return -EINVAL if no usbphy is available */
-		if (ret == -ENODEV)
-			data->phy = NULL;
-		else
-			goto err_clk;
+		if (ret == -ENODEV) {
+			data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0);
+			if (IS_ERR(data->phy)) {
+				ret = PTR_ERR(data->phy);
+				if (ret == -ENODEV)
+					data->phy = NULL;
+				else
+					goto err_clk;
+			}
+		}
 	}
 
 	pdata.usb_phy = data->phy;
-- 
GitLab


From fc8b3e838bdf343e3341df176fa7d8170ea5c691 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 29 Sep 2021 11:09:36 +0200
Subject: [PATCH 0193/4878] USB: cdc-acm: fix racy tty buffer accesses

commit 65a205e6113506e69a503b61d97efec43fc10fd7 upstream.

A recent change that started reporting break events to the line
discipline caused the tty-buffer insertions to no longer be serialised
by inserting events also from the completion handler for the interrupt
endpoint.

Completion calls for distinct endpoints are not guaranteed to be
serialised. For example, in case a host-controller driver uses
bottom-half completion, the interrupt and bulk-in completion handlers
can end up running in parallel on two CPUs (high-and low-prio tasklets,
respectively) thereby breaking the tty layer's single producer
assumption.

Fix this by holding the read lock also when inserting characters from
the bulk endpoint.

Fixes: 08dff274edda ("cdc-acm: fix BREAK rx code path adding necessary calls")
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210929090937.7410-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/class/cdc-acm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 7748b1335558e..80508daf75acd 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -475,11 +475,16 @@ static int acm_submit_read_urbs(struct acm *acm, gfp_t mem_flags)
 
 static void acm_process_read_urb(struct acm *acm, struct urb *urb)
 {
+	unsigned long flags;
+
 	if (!urb->actual_length)
 		return;
 
+	spin_lock_irqsave(&acm->read_lock, flags);
 	tty_insert_flip_string(&acm->port, urb->transfer_buffer,
 			urb->actual_length);
+	spin_unlock_irqrestore(&acm->read_lock, flags);
+
 	tty_flip_buffer_push(&acm->port);
 }
 
-- 
GitLab


From feb3fe702a589ccf95ad5c5312db35462ab80733 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 29 Sep 2021 11:09:37 +0200
Subject: [PATCH 0194/4878] USB: cdc-acm: fix break reporting

commit 58fc1daa4d2e9789b9ffc880907c961ea7c062cc upstream.

A recent change that started reporting break events forgot to push the
event to the line discipline, which meant that a detected break would
not be reported until further characters had been receive (the port
could even have been closed and reopened in between).

Fixes: 08dff274edda ("cdc-acm: fix BREAK rx code path adding necessary calls")
Cc: stable@vger.kernel.org
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210929090937.7410-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/class/cdc-acm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 80508daf75acd..7950d5b3af429 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -340,6 +340,9 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf)
 			acm->iocount.overrun++;
 		spin_unlock_irqrestore(&acm->read_lock, flags);
 
+		if (newctrl & ACM_CTRL_BRK)
+			tty_flip_buffer_push(&acm->port);
+
 		if (difference)
 			wake_up_all(&acm->wioctl);
 
-- 
GitLab


From 1d4e9f27d20d73dd3f5b65b2febb4ef887b94b9b Mon Sep 17 00:00:00 2001
From: Xu Yang <xu.yang_2@nxp.com>
Date: Tue, 28 Sep 2021 19:16:39 +0800
Subject: [PATCH 0195/4878] usb: typec: tcpm: handle SRC_STARTUP state if cc
 changes

commit 6d91017a295e9790eec02c4e43f020cdb55f5d98 upstream.

TCPM for DRP should do the same action as SRC_ATTACHED when cc changes in
SRC_STARTUP state. Otherwise, TCPM will transition to SRC_UNATTACHED state
which is not satisfied with the Type-C spec.

Per Type-C spec:
DRP port should move to Unattached.SNK instead of Unattached.SRC if sink
removed.

Fixes: 4b4e02c83167 ("typec: tcpm: Move out of staging")
cc: <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20210928111639.3854174-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/typec/tcpm/tcpm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 0b08dd3b19eb0..291d020427924 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -3922,6 +3922,7 @@ static void _tcpm_cc_change(struct tcpm_port *port, enum typec_cc_status cc1,
 			tcpm_set_state(port, SRC_ATTACH_WAIT, 0);
 		break;
 	case SRC_ATTACHED:
+	case SRC_STARTUP:
 	case SRC_SEND_CAPABILITIES:
 	case SRC_READY:
 		if (tcpm_port_is_disconnected(port) ||
-- 
GitLab


From de1e8bd36ab4ba9a34911802f9c8f029621dcb67 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Mon, 6 Sep 2021 10:56:28 +1000
Subject: [PATCH 0196/4878] drm/nouveau/kms/tu102-: delay enabling cursor until
 after assign_windows

commit f732e2e34aa08493fdd762f3daa4e5f16bbf1e45 upstream.

Prevent NVD core channel error code 67 occuring and hanging display,
managed to reproduce on GA102 while testing suspend/resume scenarios.

Required extension of earlier commit to fix interactions with EFI.

Fixes: e78b1b545c6c ("drm/nouveau/kms/nv50: workaround EFI GOP window channel format differences")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: <stable@vger.kernel.org> # v5.12+
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210906005628.11499-2-skeggsb@gmail.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/dispnv50/head.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c b/drivers/gpu/drm/nouveau/dispnv50/head.c
index 61826cac3061a..be649d14f8797 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
@@ -51,6 +51,7 @@ nv50_head_flush_clr(struct nv50_head *head,
 void
 nv50_head_flush_set_wndw(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
+	if (asyh->set.curs   ) head->func->curs_set(head, asyh);
 	if (asyh->set.olut   ) {
 		asyh->olut.offset = nv50_lut_load(&head->olut,
 						  asyh->olut.buffer,
@@ -66,7 +67,6 @@ nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 	if (asyh->set.view   ) head->func->view    (head, asyh);
 	if (asyh->set.mode   ) head->func->mode    (head, asyh);
 	if (asyh->set.core   ) head->func->core_set(head, asyh);
-	if (asyh->set.curs   ) head->func->curs_set(head, asyh);
 	if (asyh->set.base   ) head->func->base    (head, asyh);
 	if (asyh->set.ovly   ) head->func->ovly    (head, asyh);
 	if (asyh->set.dither ) head->func->dither  (head, asyh);
-- 
GitLab


From 13d17cc717d58034a472353ab0e3a84fb675c678 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@suse.com>
Date: Wed, 22 Sep 2021 12:17:48 +0200
Subject: [PATCH 0197/4878] xen/privcmd: fix error handling in mmap-resource
 processing

commit e11423d6721dd63b23fb41ade5e8d0b448b17780 upstream.

xen_pfn_t is the same size as int only on 32-bit builds (and not even
on Arm32). Hence pfns[] can't be used directly to read individual error
values returned from xen_remap_domain_mfn_array(); every other error
indicator would be skipped/ignored on 64-bit.

Fixes: 3ad0876554ca ("xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE")
Cc: stable@vger.kernel.org
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Link: https://lore.kernel.org/r/aa6d6a67-6889-338a-a910-51e889f792d5@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
---
 drivers/xen/privcmd.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 720a7b7abd46d..fe8df32bb612b 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -803,11 +803,12 @@ static long privcmd_ioctl_mmap_resource(struct file *file,
 		unsigned int domid =
 			(xdata.flags & XENMEM_rsrc_acq_caller_owned) ?
 			DOMID_SELF : kdata.dom;
-		int num;
+		int num, *errs = (int *)pfns;
 
+		BUILD_BUG_ON(sizeof(*errs) > sizeof(*pfns));
 		num = xen_remap_domain_mfn_array(vma,
 						 kdata.addr & PAGE_MASK,
-						 pfns, kdata.num, (int *)pfns,
+						 pfns, kdata.num, errs,
 						 vma->vm_page_prot,
 						 domid,
 						 vma->vm_private_data);
@@ -817,7 +818,7 @@ static long privcmd_ioctl_mmap_resource(struct file *file,
 			unsigned int i;
 
 			for (i = 0; i < num; i++) {
-				rc = pfns[i];
+				rc = errs[i];
 				if (rc < 0)
 					break;
 			}
-- 
GitLab


From e5cb3680b958ed3eb66504c0865f767d760cc9cd Mon Sep 17 00:00:00 2001
From: Neil Armstrong <narmstrong@baylibre.com>
Date: Tue, 28 Sep 2021 09:36:52 +0200
Subject: [PATCH 0198/4878] mmc: meson-gx: do not use memcpy_to/fromio for
 dram-access-quirk

commit 8a38a4d51c5055d0201542e5ea3c0cb287f6e223 upstream.

The memory at the end of the controller only accepts 32bit read/write
accesses, but the arm64 memcpy_to/fromio implementation only uses 64bit
(which will be split into two 32bit access) and 8bit leading to incomplete
copies to/from this memory when the buffer is not multiple of 8bytes.

Add a local copy using writel/readl accesses to make sure we use the right
memory access width.

The switch to memcpy_to/fromio was done because of 285133040e6c
("arm64: Import latest memcpy()/memmove() implementation"), but using memcpy
worked before since it mainly used 32bit memory acceses.

Fixes: 103a5348c22c ("mmc: meson-gx: use memcpy_to/fromio for dram-access-quirk")
Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Suggested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210928073652.434690-1-narmstrong@baylibre.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/meson-gx-mmc.c | 73 ++++++++++++++++++++++++++-------
 1 file changed, 59 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index d3f40c9a8c6c8..b274083a6e635 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -735,7 +735,7 @@ static void meson_mmc_desc_chain_transfer(struct mmc_host *mmc, u32 cmd_cfg)
 	writel(start, host->regs + SD_EMMC_START);
 }
 
-/* local sg copy to buffer version with _to/fromio usage for dram_access_quirk */
+/* local sg copy for dram_access_quirk */
 static void meson_mmc_copy_buffer(struct meson_host *host, struct mmc_data *data,
 				  size_t buflen, bool to_buffer)
 {
@@ -753,21 +753,27 @@ static void meson_mmc_copy_buffer(struct meson_host *host, struct mmc_data *data
 	sg_miter_start(&miter, sgl, nents, sg_flags);
 
 	while ((offset < buflen) && sg_miter_next(&miter)) {
-		unsigned int len;
+		unsigned int buf_offset = 0;
+		unsigned int len, left;
+		u32 *buf = miter.addr;
 
 		len = min(miter.length, buflen - offset);
+		left = len;
 
-		/* When dram_access_quirk, the bounce buffer is a iomem mapping */
-		if (host->dram_access_quirk) {
-			if (to_buffer)
-				memcpy_toio(host->bounce_iomem_buf + offset, miter.addr, len);
-			else
-				memcpy_fromio(miter.addr, host->bounce_iomem_buf + offset, len);
+		if (to_buffer) {
+			do {
+				writel(*buf++, host->bounce_iomem_buf + offset + buf_offset);
+
+				buf_offset += 4;
+				left -= 4;
+			} while (left);
 		} else {
-			if (to_buffer)
-				memcpy(host->bounce_buf + offset, miter.addr, len);
-			else
-				memcpy(miter.addr, host->bounce_buf + offset, len);
+			do {
+				*buf++ = readl(host->bounce_iomem_buf + offset + buf_offset);
+
+				buf_offset += 4;
+				left -= 4;
+			} while (left);
 		}
 
 		offset += len;
@@ -819,7 +825,11 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
 		if (data->flags & MMC_DATA_WRITE) {
 			cmd_cfg |= CMD_CFG_DATA_WR;
 			WARN_ON(xfer_bytes > host->bounce_buf_size);
-			meson_mmc_copy_buffer(host, data, xfer_bytes, true);
+			if (host->dram_access_quirk)
+				meson_mmc_copy_buffer(host, data, xfer_bytes, true);
+			else
+				sg_copy_to_buffer(data->sg, data->sg_len,
+						  host->bounce_buf, xfer_bytes);
 			dma_wmb();
 		}
 
@@ -838,12 +848,43 @@ static void meson_mmc_start_cmd(struct mmc_host *mmc, struct mmc_command *cmd)
 	writel(cmd->arg, host->regs + SD_EMMC_CMD_ARG);
 }
 
+static int meson_mmc_validate_dram_access(struct mmc_host *mmc, struct mmc_data *data)
+{
+	struct scatterlist *sg;
+	int i;
+
+	/* Reject request if any element offset or size is not 32bit aligned */
+	for_each_sg(data->sg, sg, data->sg_len, i) {
+		if (!IS_ALIGNED(sg->offset, sizeof(u32)) ||
+		    !IS_ALIGNED(sg->length, sizeof(u32))) {
+			dev_err(mmc_dev(mmc), "unaligned sg offset %u len %u\n",
+				data->sg->offset, data->sg->length);
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
 static void meson_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
 {
 	struct meson_host *host = mmc_priv(mmc);
 	bool needs_pre_post_req = mrq->data &&
 			!(mrq->data->host_cookie & SD_EMMC_PRE_REQ_DONE);
 
+	/*
+	 * The memory at the end of the controller used as bounce buffer for
+	 * the dram_access_quirk only accepts 32bit read/write access,
+	 * check the aligment and length of the data before starting the request.
+	 */
+	if (host->dram_access_quirk && mrq->data) {
+		mrq->cmd->error = meson_mmc_validate_dram_access(mmc, mrq->data);
+		if (mrq->cmd->error) {
+			mmc_request_done(mmc, mrq);
+			return;
+		}
+	}
+
 	if (needs_pre_post_req) {
 		meson_mmc_get_transfer_mode(mmc, mrq);
 		if (!meson_mmc_desc_chain_mode(mrq->data))
@@ -988,7 +1029,11 @@ static irqreturn_t meson_mmc_irq_thread(int irq, void *dev_id)
 	if (meson_mmc_bounce_buf_read(data)) {
 		xfer_bytes = data->blksz * data->blocks;
 		WARN_ON(xfer_bytes > host->bounce_buf_size);
-		meson_mmc_copy_buffer(host, data, xfer_bytes, false);
+		if (host->dram_access_quirk)
+			meson_mmc_copy_buffer(host, data, xfer_bytes, false);
+		else
+			sg_copy_from_buffer(data->sg, data->sg_len,
+					    host->bounce_buf, xfer_bytes);
 	}
 
 	next_cmd = meson_mmc_get_next_command(cmd);
-- 
GitLab


From 3a0feae5f642258f6a217560a2d8f8a773e79cf0 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Fri, 24 Sep 2021 11:28:50 +0300
Subject: [PATCH 0199/4878] mmc: sdhci-of-at91: wait for calibration done
 before proceed

commit af467fad78f03a42de8b72190f6a595366b870db upstream.

Datasheet specifies that at the end of calibration the SDMMC_CALCR_EN
bit will be cleared. No commands should be send before calibration is
done.

Fixes: dbdea70f71d67 ("mmc: sdhci-of-at91: fix CALCR register being rewritten")
Fixes: 727d836a375ad ("mmc: sdhci-of-at91: add DT property to enable calibration on full reset")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210924082851.2132068-2-claudiu.beznea@microchip.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-of-at91.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index 5564d7b23e7cd..134ba01d3063b 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -11,6 +11,7 @@
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/slot-gpio.h>
@@ -114,6 +115,7 @@ static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_at91_priv *priv = sdhci_pltfm_priv(pltfm_host);
+	unsigned int tmp;
 
 	sdhci_reset(host, mask);
 
@@ -126,6 +128,10 @@ static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
 
 		sdhci_writel(host, calcr | SDMMC_CALCR_ALWYSON | SDMMC_CALCR_EN,
 			     SDMMC_CALCR);
+
+		if (read_poll_timeout(sdhci_readl, tmp, !(tmp & SDMMC_CALCR_EN),
+				      10, 20000, false, host, SDMMC_CALCR))
+			dev_err(mmc_dev(host->mmc), "Failed to calibrate\n");
 	}
 }
 
-- 
GitLab


From 1500f0c83670294b786e0cbf62c15da23fae1a26 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Fri, 24 Sep 2021 11:28:51 +0300
Subject: [PATCH 0200/4878] mmc: sdhci-of-at91: replace while loop with
 read_poll_timeout

commit 30d4b990ec644e8bd49ef0a2f074fabc0d189e53 upstream.

Replace while loop with read_poll_timeout().

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210924082851.2132068-3-claudiu.beznea@microchip.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-of-at91.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index 134ba01d3063b..d1a1c548c515f 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -62,7 +62,6 @@ static void sdhci_at91_set_force_card_detect(struct sdhci_host *host)
 static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
 {
 	u16 clk;
-	unsigned long timeout;
 
 	host->mmc->actual_clock = 0;
 
@@ -87,16 +86,11 @@ static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
 
 	/* Wait max 20 ms */
-	timeout = 20;
-	while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL))
-		& SDHCI_CLOCK_INT_STABLE)) {
-		if (timeout == 0) {
-			pr_err("%s: Internal clock never stabilised.\n",
-			       mmc_hostname(host->mmc));
-			return;
-		}
-		timeout--;
-		mdelay(1);
+	if (read_poll_timeout(sdhci_readw, clk, (clk & SDHCI_CLOCK_INT_STABLE),
+			      1000, 20000, false, host, SDHCI_CLOCK_CONTROL)) {
+		pr_err("%s: Internal clock never stabilised.\n",
+		       mmc_hostname(host->mmc));
+		return;
 	}
 
 	clk |= SDHCI_CLOCK_CARD_EN;
-- 
GitLab


From 9763ffd4da217adfcbdcd519e9f434dfa3952fc3 Mon Sep 17 00:00:00 2001
From: Zheng Liang <zhengliang6@huawei.com>
Date: Fri, 24 Sep 2021 09:16:27 +0800
Subject: [PATCH 0201/4878] ovl: fix missing negative dentry check in
 ovl_rename()

commit a295aef603e109a47af355477326bd41151765b6 upstream.

The following reproducer

  mkdir lower upper work merge
  touch lower/old
  touch lower/new
  mount -t overlay overlay -olowerdir=lower,upperdir=upper,workdir=work merge
  rm merge/new
  mv merge/old merge/new & unlink upper/new

may result in this race:

PROCESS A:
  rename("merge/old", "merge/new");
  overwrite=true,ovl_lower_positive(old)=true,
  ovl_dentry_is_whiteout(new)=true -> flags |= RENAME_EXCHANGE

PROCESS B:
  unlink("upper/new");

PROCESS A:
  lookup newdentry in new_upperdir
  call vfs_rename() with negative newdentry and RENAME_EXCHANGE

Fix by adding the missing check for negative newdentry.

Signed-off-by: Zheng Liang <zhengliang6@huawei.com>
Fixes: e9be9d5e76e3 ("overlay filesystem")
Cc: <stable@vger.kernel.org> # v3.18
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/dir.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 08b595c526d74..16955a307dcd9 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -1214,9 +1214,13 @@ static int ovl_rename(struct inode *olddir, struct dentry *old,
 				goto out_dput;
 		}
 	} else {
-		if (!d_is_negative(newdentry) &&
-		    (!new_opaque || !ovl_is_whiteout(newdentry)))
-			goto out_dput;
+		if (!d_is_negative(newdentry)) {
+			if (!new_opaque || !ovl_is_whiteout(newdentry))
+				goto out_dput;
+		} else {
+			if (flags & RENAME_EXCHANGE)
+				goto out_dput;
+		}
 	}
 
 	if (olddentry == trap)
-- 
GitLab


From 1bc2f315a215585f8bc07257542e67373c86e801 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Mon, 27 Sep 2021 11:23:57 +0200
Subject: [PATCH 0202/4878] ovl: fix IOCB_DIRECT if underlying fs doesn't
 support direct IO

commit 1dc1eed46f9fa4cb8a07baa24fb44c96d6dd35c9 upstream.

Normally the check at open time suffices, but e.g loop device does set
IOCB_DIRECT after doing its own checks (which are not sufficent for
overlayfs).

Make sure we don't call the underlying filesystem read/write method with
the IOCB_DIRECT if it's not supported.

Reported-by: Huang Jianan <huangjianan@oppo.com>
Fixes: 16914e6fc7e1 ("ovl: add ovl_read_iter()")
Cc: <stable@vger.kernel.org> # v4.19
Tested-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/file.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 5c5c3972ebd0a..f7135777cb4eb 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -301,6 +301,12 @@ static ssize_t ovl_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 	if (ret)
 		return ret;
 
+	ret = -EINVAL;
+	if (iocb->ki_flags & IOCB_DIRECT &&
+	    (!real.file->f_mapping->a_ops ||
+	     !real.file->f_mapping->a_ops->direct_IO))
+		goto out_fdput;
+
 	old_cred = ovl_override_creds(file_inode(file)->i_sb);
 	if (is_sync_kiocb(iocb)) {
 		ret = vfs_iter_read(real.file, iter, &iocb->ki_pos,
@@ -325,7 +331,7 @@ static ssize_t ovl_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 out:
 	revert_creds(old_cred);
 	ovl_file_accessed(file);
-
+out_fdput:
 	fdput(real);
 
 	return ret;
@@ -354,6 +360,12 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
 	if (ret)
 		goto out_unlock;
 
+	ret = -EINVAL;
+	if (iocb->ki_flags & IOCB_DIRECT &&
+	    (!real.file->f_mapping->a_ops ||
+	     !real.file->f_mapping->a_ops->direct_IO))
+		goto out_fdput;
+
 	if (!ovl_should_sync(OVL_FS(inode->i_sb)))
 		ifl &= ~(IOCB_DSYNC | IOCB_SYNC);
 
@@ -389,6 +401,7 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
 	}
 out:
 	revert_creds(old_cred);
+out_fdput:
 	fdput(real);
 
 out_unlock:
-- 
GitLab


From 12d4b179022ac7d07aa263b46159779536b3c6a6 Mon Sep 17 00:00:00 2001
From: Patrick Ho <Patrick.Ho@netapp.com>
Date: Sat, 21 Aug 2021 02:56:26 -0400
Subject: [PATCH 0203/4878] nfsd: fix error handling of
 register_pernet_subsys() in init_nfsd()

commit 1d625050c7c2dd877e108e382b8aaf1ae3cfe1f4 upstream.

init_nfsd() should not unregister pernet subsys if the register fails
but should instead unwind from the last successful operation which is
register_filesystem().

Unregistering a failed register_pernet_subsys() call can result in
a kernel GPF as revealed by programmatically injecting an error in
register_pernet_subsys().

Verified the fix handled failure gracefully with no lingering nfsd
entry in /proc/filesystems.  This change was introduced by the commit
bd5ae9288d64 ("nfsd: register pernet ops last, unregister first"),
the original error handling logic was correct.

Fixes: bd5ae9288d64 ("nfsd: register pernet ops last, unregister first")
Cc: stable@vger.kernel.org
Signed-off-by: Patrick Ho <Patrick.Ho@netapp.com>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfsctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 0759e589ab52b..ddf2b375632b7 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1547,7 +1547,7 @@ static int __init init_nfsd(void)
 		goto out_free_all;
 	return 0;
 out_free_all:
-	unregister_pernet_subsys(&nfsd_net_ops);
+	unregister_filesystem(&nfsd_fs_type);
 out_free_exports:
 	remove_proc_entry("fs/nfs/exports", NULL);
 	remove_proc_entry("fs/nfs", NULL);
-- 
GitLab


From 8f174a208c4c7dae73b36db2ca84d06ee901ecb1 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Thu, 30 Sep 2021 15:44:41 -0400
Subject: [PATCH 0204/4878] nfsd4: Handle the NFSv4 READDIR 'dircount' hint
 being zero

commit f2e717d655040d632c9015f19aa4275f8b16e7f2 upstream.

RFC3530 notes that the 'dircount' field may be zero, in which case the
recommendation is to ignore it, and only enforce the 'maxcount' field.
In RFC5661, this recommendation to ignore a zero valued field becomes a
requirement.

Fixes: aee377644146 ("nfsd4: fix rd_dircount enforcement")
Cc: <stable@vger.kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs4xdr.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 5f5169b9c2e90..46f825cf53f4f 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3427,15 +3427,18 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
 		goto fail;
 	cd->rd_maxcount -= entry_bytes;
 	/*
-	 * RFC 3530 14.2.24 describes rd_dircount as only a "hint", so
-	 * let's always let through the first entry, at least:
+	 * RFC 3530 14.2.24 describes rd_dircount as only a "hint", and
+	 * notes that it could be zero. If it is zero, then the server
+	 * should enforce only the rd_maxcount value.
 	 */
-	if (!cd->rd_dircount)
-		goto fail;
-	name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
-	if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
-		goto fail;
-	cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
+	if (cd->rd_dircount) {
+		name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
+		if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
+			goto fail;
+		cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
+		if (!cd->rd_dircount)
+			cd->rd_maxcount = 0;
+	}
 
 	cd->cookie_offset = cookie_offset;
 skip_entry:
-- 
GitLab


From 9aac782ab0ab0fd0a8e507a6294359c2f5cf182d Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Fri, 1 Oct 2021 09:59:21 -0400
Subject: [PATCH 0205/4878] SUNRPC: fix sign error causing rpcsec_gss drops

commit 2ba5acfb34957e8a7fe47cd78c77ca88e9cc2b03 upstream.

If sd_max is unsigned, then sd_max - GSS_SEQ_WIN is a very large number
whenever sd_max is less than GSS_SEQ_WIN, and the comparison:

	seq_num <= sd->sd_max - GSS_SEQ_WIN

in gss_check_seq_num is pretty much always true, even when that's
clearly not what was intended.

This was causing pynfs to hang when using krb5, because pynfs uses zero
as the initial gss sequence number.  That's perfectly legal, but this
logic error causes knfsd to drop the rpc in that case.  Out-of-order
sequence IDs in the first GSS_SEQ_WIN (128) calls will also cause this.

Fixes: 10b9d99a3dbb ("SUNRPC: Augment server-side rpcgss tracepoints")
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sunrpc/auth_gss/svcauth_gss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index e22f2d65457da..f5111d62972d3 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -643,7 +643,7 @@ static bool gss_check_seq_num(const struct svc_rqst *rqstp, struct rsc *rsci,
 		}
 		__set_bit(seq_num % GSS_SEQ_WIN, sd->sd_win);
 		goto ok;
-	} else if (seq_num <= sd->sd_max - GSS_SEQ_WIN) {
+	} else if (seq_num + GSS_SEQ_WIN <= sd->sd_max) {
 		goto toolow;
 	}
 	if (__test_and_set_bit(seq_num % GSS_SEQ_WIN, sd->sd_win))
-- 
GitLab


From f9a855d1bcb2630db6163de363945c9c84feaa46 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 5 Oct 2021 15:34:33 +0200
Subject: [PATCH 0206/4878] xen/balloon: fix cancelled balloon action
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 319933a80fd4f07122466a77f93e5019d71be74c upstream.

In case a ballooning action is cancelled the new kernel thread handling
the ballooning might end up in a busy loop.

Fix that by handling the cancelled action gracefully.

While at it introduce a short wait for the BP_WAIT case.

Cc: stable@vger.kernel.org
Fixes: 8480ed9c2bbd56 ("xen/balloon: use a kernel thread instead a workqueue")
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Tested-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211005133433.32008-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/balloon.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 15d4b1ef19f83..1911a62a6d9c1 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -491,12 +491,12 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
 }
 
 /*
- * Stop waiting if either state is not BP_EAGAIN and ballooning action is
- * needed, or if the credit has changed while state is BP_EAGAIN.
+ * Stop waiting if either state is BP_DONE and ballooning action is
+ * needed, or if the credit has changed while state is not BP_DONE.
  */
 static bool balloon_thread_cond(enum bp_state state, long credit)
 {
-	if (state != BP_EAGAIN)
+	if (state == BP_DONE)
 		credit = 0;
 
 	return current_credit() != credit || kthread_should_stop();
@@ -516,10 +516,19 @@ static int balloon_thread(void *unused)
 
 	set_freezable();
 	for (;;) {
-		if (state == BP_EAGAIN)
-			timeout = balloon_stats.schedule_delay * HZ;
-		else
+		switch (state) {
+		case BP_DONE:
+		case BP_ECANCELED:
 			timeout = 3600 * HZ;
+			break;
+		case BP_EAGAIN:
+			timeout = balloon_stats.schedule_delay * HZ;
+			break;
+		case BP_WAIT:
+			timeout = HZ;
+			break;
+		}
+
 		credit = current_credit();
 
 		wait_event_freezable_timeout(balloon_thread_wq,
-- 
GitLab


From 71d3ce62ac88190c63eb470e86fe76fc7e19bb0f Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@kernel.org>
Date: Thu, 2 Sep 2021 12:58:28 +0300
Subject: [PATCH 0207/4878] ARM: dts: omap3430-sdp: Fix NAND device node

commit 80d680fdccba214e8106dc1aa33de5207ad75394 upstream.

Nand is on CS1 so reg properties first field should be 1 not 0.

Fixes: 44e4716499b8 ("ARM: dts: omap3: Fix NAND device nodes")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/omap3430-sdp.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3430-sdp.dts b/arch/arm/boot/dts/omap3430-sdp.dts
index c5b9037184149..7d530ae3483b8 100644
--- a/arch/arm/boot/dts/omap3430-sdp.dts
+++ b/arch/arm/boot/dts/omap3430-sdp.dts
@@ -101,7 +101,7 @@
 
 	nand@1,0 {
 		compatible = "ti,omap2-nand";
-		reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
+		reg = <1 0 4>; /* CS1, offset 0, IO size 4 */
 		interrupt-parent = <&gpmc>;
 		interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
 			     <1 IRQ_TYPE_NONE>;	/* termcount */
-- 
GitLab


From ac06fe40e8896c96786b47857ddc50738a103f6e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Vok=C3=A1=C4=8D?= <michal.vokac@ysoft.com>
Date: Wed, 18 Aug 2021 09:02:08 +0200
Subject: [PATCH 0208/4878] ARM: dts: imx6dl-yapp4: Fix lp5562 LED driver probe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 9b663b34c94a78f39fa2c7a8271b1f828b546e16 upstream.

Since the LED multicolor framework support was added in commit
92a81562e695 ("leds: lp55xx: Add multicolor framework support to lp55xx")
LEDs on this platform stopped working.

Author of the framework attempted to accommodate this DT to the
framework in commit b86d3d21cd4c ("ARM: dts: imx6dl-yapp4: Add reg property
to the lp5562 channel node") but that is not sufficient. A color property
is now required even if the multicolor framework is not used, otherwise
the driver probe fails:

  lp5562: probe of 1-0030 failed with error -22

Add the color property to fix this.

Fixes: 92a81562e695 ("leds: lp55xx: Add multicolor framework support to lp55xx")
Cc: <stable@vger.kernel.org>
Cc: linux-leds@vger.kernel.org
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
index 9148a01ed6d9f..ebc0892e37c7a 100644
--- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
+++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
@@ -5,6 +5,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/pwm/pwm.h>
 
 / {
@@ -275,6 +276,7 @@
 			led-cur = /bits/ 8 <0x20>;
 			max-cur = /bits/ 8 <0x60>;
 			reg = <0>;
+			color = <LED_COLOR_ID_RED>;
 		};
 
 		chan@1 {
@@ -282,6 +284,7 @@
 			led-cur = /bits/ 8 <0x20>;
 			max-cur = /bits/ 8 <0x60>;
 			reg = <1>;
+			color = <LED_COLOR_ID_GREEN>;
 		};
 
 		chan@2 {
@@ -289,6 +292,7 @@
 			led-cur = /bits/ 8 <0x20>;
 			max-cur = /bits/ 8 <0x60>;
 			reg = <2>;
+			color = <LED_COLOR_ID_BLUE>;
 		};
 
 		chan@3 {
@@ -296,6 +300,7 @@
 			led-cur = /bits/ 8 <0x0>;
 			max-cur = /bits/ 8 <0x0>;
 			reg = <3>;
+			color = <LED_COLOR_ID_WHITE>;
 		};
 	};
 
-- 
GitLab


From 05287407dedf5275ce2e98eb5cd0dd03922eb3cd Mon Sep 17 00:00:00 2001
From: David Heidelberg <david@ixit.cz>
Date: Wed, 18 Aug 2021 08:53:17 +0200
Subject: [PATCH 0209/4878] ARM: dts: qcom: apq8064: use compatible which
 contains chipid

commit f5c03f131dae3f06d08464e6157dd461200f78d9 upstream.

Also resolves these kernel warnings for APQ8064:
adreno 4300000.adreno-3xx: Using legacy qcom,chipid binding!
adreno 4300000.adreno-3xx: Use compatible qcom,adreno-320.2 instead.

Tested on Nexus 7 2013, no functional changes.

Cc: <stable@vger.kernel.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20210818065317.19822-1-david@ixit.cz
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/qcom-apq8064.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index e36d590e83732..01ea4590ffce5 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -1148,7 +1148,7 @@
 		};
 
 		gpu: adreno-3xx@4300000 {
-			compatible = "qcom,adreno-3xx";
+			compatible = "qcom,adreno-320.2", "qcom,adreno";
 			reg = <0x04300000 0x20000>;
 			reg-names = "kgsl_3d0_reg_memory";
 			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
@@ -1163,7 +1163,6 @@
 			    <&mmcc GFX3D_AHB_CLK>,
 			    <&mmcc GFX3D_AXI_CLK>,
 			    <&mmcc MMSS_IMEM_AHB_CLK>;
-			qcom,chipid = <0x03020002>;
 
 			iommus = <&gfx3d 0
 				  &gfx3d 1
-- 
GitLab


From 427faa29e06f0709476ea1bd59758f997ec8b64e Mon Sep 17 00:00:00 2001
From: Alexandre Ghiti <alex@ghiti.fr>
Date: Sat, 18 Sep 2021 18:02:21 +0200
Subject: [PATCH 0210/4878] riscv: Flush current cpu icache before other cpus

commit bb8958d5dc79acbd071397abb57b8756375fe1ce upstream.

On SiFive Unmatched, I recently fell onto the following BUG when booting:

[    0.000000] ftrace: allocating 36610 entries in 144 pages
[    0.000000] Oops - illegal instruction [#1]
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.13.1+ #5
[    0.000000] Hardware name: SiFive HiFive Unmatched A00 (DT)
[    0.000000] epc : riscv_cpuid_to_hartid_mask+0x6/0xae
[    0.000000]  ra : __sbi_rfence_v02+0xc8/0x10a
[    0.000000] epc : ffffffff80007240 ra : ffffffff80009964 sp : ffffffff81803e10
[    0.000000]  gp : ffffffff81a1ea70 tp : ffffffff8180f500 t0 : ffffffe07fe30000
[    0.000000]  t1 : 0000000000000004 t2 : 0000000000000000 s0 : ffffffff81803e60
[    0.000000]  s1 : 0000000000000000 a0 : ffffffff81a22238 a1 : ffffffff81803e10
[    0.000000]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000
[    0.000000]  a5 : 0000000000000000 a6 : ffffffff8000989c a7 : 0000000052464e43
[    0.000000]  s2 : ffffffff81a220c8 s3 : 0000000000000000 s4 : 0000000000000000
[    0.000000]  s5 : 0000000000000000 s6 : 0000000200000100 s7 : 0000000000000001
[    0.000000]  s8 : ffffffe07fe04040 s9 : ffffffff81a22c80 s10: 0000000000001000
[    0.000000]  s11: 0000000000000004 t3 : 0000000000000001 t4 : 0000000000000008
[    0.000000]  t5 : ffffffcf04000808 t6 : ffffffe3ffddf188
[    0.000000] status: 0000000200000100 badaddr: 0000000000000000 cause: 0000000000000002
[    0.000000] [<ffffffff80007240>] riscv_cpuid_to_hartid_mask+0x6/0xae
[    0.000000] [<ffffffff80009474>] sbi_remote_fence_i+0x1e/0x26
[    0.000000] [<ffffffff8000b8f4>] flush_icache_all+0x12/0x1a
[    0.000000] [<ffffffff8000666c>] patch_text_nosync+0x26/0x32
[    0.000000] [<ffffffff8000884e>] ftrace_init_nop+0x52/0x8c
[    0.000000] [<ffffffff800f051e>] ftrace_process_locs.isra.0+0x29c/0x360
[    0.000000] [<ffffffff80a0e3c6>] ftrace_init+0x80/0x130
[    0.000000] [<ffffffff80a00f8c>] start_kernel+0x5c4/0x8f6
[    0.000000] ---[ end trace f67eb9af4d8d492b ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

While ftrace is looping over a list of addresses to patch, it always failed
when patching the same function: riscv_cpuid_to_hartid_mask. Looking at the
backtrace, the illegal instruction is encountered in this same function.
However, patch_text_nosync, after patching the instructions, calls
flush_icache_range. But looking at what happens in this function:

flush_icache_range -> flush_icache_all
                   -> sbi_remote_fence_i
                   -> __sbi_rfence_v02
                   -> riscv_cpuid_to_hartid_mask

The icache and dcache of the current cpu are never synchronized between the
patching of riscv_cpuid_to_hartid_mask and calling this same function.

So fix this by flushing the current cpu's icache before asking for the other
cpus to do the same.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Fixes: fab957c11efe ("RISC-V: Atomic and Locking Code")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/mm/cacheflush.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/riscv/mm/cacheflush.c b/arch/riscv/mm/cacheflush.c
index 094118663285d..89f81067e09ed 100644
--- a/arch/riscv/mm/cacheflush.c
+++ b/arch/riscv/mm/cacheflush.c
@@ -16,6 +16,8 @@ static void ipi_remote_fence_i(void *info)
 
 void flush_icache_all(void)
 {
+	local_flush_icache_all();
+
 	if (IS_ENABLED(CONFIG_RISCV_SBI))
 		sbi_remote_fence_i(NULL);
 	else
-- 
GitLab


From ab8073794be3316ae6928225dd795c657eb8b05a Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Sun, 15 Aug 2021 12:18:52 -0700
Subject: [PATCH 0211/4878] bus: ti-sysc: Add break in switch statement in
 sysc_init_soc()

[ Upstream commit e879f855e590b40fe3c79f2fbd8f65ca3c724120 ]

After commit a6d90e9f2232 ("bus: ti-sysc: AM3: RNG is GP only"), clang
with -Wimplicit-fallthrough enabled warns:

drivers/bus/ti-sysc.c:2958:3: warning: unannotated fall-through between
switch labels [-Wimplicit-fallthrough]
                default:
                ^
drivers/bus/ti-sysc.c:2958:3: note: insert 'break;' to avoid
fall-through
                default:
                ^
                break;
1 warning generated.

Clang's version of this warning is a little bit more pedantic than
GCC's. Add the missing break to satisfy it to match what has been done
all over the kernel tree.

Fixes: a6d90e9f2232 ("bus: ti-sysc: AM3: RNG is GP only")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bus/ti-sysc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 159b57c6dc4df..d2b7338c073f7 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -2922,6 +2922,7 @@ static int sysc_init_soc(struct sysc *ddata)
 			break;
 		case SOC_AM3:
 			sysc_add_disabled(0x48310000);  /* rng */
+			break;
 		default:
 			break;
 		};
-- 
GitLab


From 25ac88e601ebc7c44a5aa0a5fa094e59e53eaaae Mon Sep 17 00:00:00 2001
From: Antonio Martorana <amartora@codeaurora.org>
Date: Mon, 16 Aug 2021 17:24:39 -0700
Subject: [PATCH 0212/4878] soc: qcom: socinfo: Fixed argument passed to
 platform_set_data()

[ Upstream commit 9c5a4ec69bbf5951f84ada9e0db9c6c50de61808 ]

Set qcom_socinfo pointer as data being stored instead of pointer
to soc_device structure. Aligns with future calls to platform_get_data()
which expects qcom_socinfo pointer.

Fixes: efb448d0a3fc ("soc: qcom: Add socinfo driver")
Signed-off-by: Antonio Martorana <amartora@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1629159879-95777-1-git-send-email-amartora@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/qcom/socinfo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c
index e0620416e5743..60c82dcaa8d1d 100644
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@ -521,7 +521,7 @@ static int qcom_socinfo_probe(struct platform_device *pdev)
 	/* Feed the soc specific unique data into entropy pool */
 	add_device_randomness(info, item_size);
 
-	platform_set_drvdata(pdev, qs->soc_dev);
+	platform_set_drvdata(pdev, qs);
 
 	return 0;
 }
-- 
GitLab


From d89a313a573953074e57fc42170dd32a315659c1 Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Sun, 29 Aug 2021 22:30:25 +0200
Subject: [PATCH 0213/4878] ARM: dts: qcom: apq8064: Use 27MHz PXO clock as DSI
 PLL reference

[ Upstream commit f1db21c315f4b4f8c3fbea56aac500673132d317 ]

The 28NM DSI PLL driver for msm8960 calculates with a 27MHz reference
clock and should hence use PXO, not CXO which runs at 19.2MHz.

Note that none of the DSI PHY/PLL drivers currently use this "ref"
clock; they all rely on (sometimes inexistant) global clock names and
usually function normally without a parent clock.  This discrepancy will
be corrected in a future patch, for which this change needs to be in
place first.

Fixes: 6969d1d9c615 ("ARM: dts: qcom-apq8064: Set 'cxo_board' as ref clock of the DSI PHY")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Link: https://lore.kernel.org/r/20210829203027.276143-2-marijn.suijten@somainline.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/qcom-apq8064.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 01ea4590ffce5..72c4a9fc41a20 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -198,7 +198,7 @@
 			clock-frequency = <19200000>;
 		};
 
-		pxo_board {
+		pxo_board: pxo_board {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
 			clock-frequency = <27000000>;
@@ -1305,7 +1305,7 @@
 			reg-names = "dsi_pll", "dsi_phy", "dsi_phy_regulator";
 			clock-names = "iface_clk", "ref";
 			clocks = <&mmcc DSI_M_AHB_CLK>,
-				 <&cxo_board>;
+				 <&pxo_board>;
 		};
 
 
-- 
GitLab


From 14f52004bda51ce7695abada3470752a73fa6b60 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Mon, 23 Aug 2021 16:19:12 +0300
Subject: [PATCH 0214/4878] ARM: at91: pm: do not panic if ram controllers are
 not enabled

[ Upstream commit 1605de1b3ca66e3eddbca4b3c353c13c26476fe2 ]

In case PM is enabled but there is no RAM controller information
in DT the code will panic. Avoid such scenarios by not initializing
platform specific PM code in case RAM controller is not provided
via DT.

Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: 827de1f123ba0 ("ARM: at91: remove at91_dt_initialize and machine init_early()")
Fixes: 892e1f4a3ae58 ("ARM: at91: pm: add sama7g5 ddr phy controller")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210823131915.23857-2-claudiu.beznea@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-at91/pm.c | 58 +++++++++++++++++++++++++++++++++--------
 1 file changed, 47 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 120f9aa6fff32..3f015cb6ec2b0 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -517,18 +517,22 @@ static const struct of_device_id ramc_ids[] __initconst = {
 	{ /*sentinel*/ }
 };
 
-static __init void at91_dt_ramc(void)
+static __init int at91_dt_ramc(void)
 {
 	struct device_node *np;
 	const struct of_device_id *of_id;
 	int idx = 0;
 	void *standby = NULL;
 	const struct ramc_info *ramc;
+	int ret;
 
 	for_each_matching_node_and_match(np, ramc_ids, &of_id) {
 		soc_pm.data.ramc[idx] = of_iomap(np, 0);
-		if (!soc_pm.data.ramc[idx])
-			panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx);
+		if (!soc_pm.data.ramc[idx]) {
+			pr_err("unable to map ramc[%d] cpu registers\n", idx);
+			ret = -ENOMEM;
+			goto unmap_ramc;
+		}
 
 		ramc = of_id->data;
 		if (!standby)
@@ -538,15 +542,26 @@ static __init void at91_dt_ramc(void)
 		idx++;
 	}
 
-	if (!idx)
-		panic(pr_fmt("unable to find compatible ram controller node in dtb\n"));
+	if (!idx) {
+		pr_err("unable to find compatible ram controller node in dtb\n");
+		ret = -ENODEV;
+		goto unmap_ramc;
+	}
 
 	if (!standby) {
 		pr_warn("ramc no standby function available\n");
-		return;
+		return 0;
 	}
 
 	at91_cpuidle_device.dev.platform_data = standby;
+
+	return 0;
+
+unmap_ramc:
+	while (idx)
+		iounmap(soc_pm.data.ramc[--idx]);
+
+	return ret;
 }
 
 static void at91rm9200_idle(void)
@@ -869,6 +884,8 @@ static void __init at91_pm_init(void (*pm_idle)(void))
 
 void __init at91rm9200_pm_init(void)
 {
+	int ret;
+
 	if (!IS_ENABLED(CONFIG_SOC_AT91RM9200))
 		return;
 
@@ -880,7 +897,9 @@ void __init at91rm9200_pm_init(void)
 	soc_pm.data.standby_mode = AT91_PM_STANDBY;
 	soc_pm.data.suspend_mode = AT91_PM_ULP0;
 
-	at91_dt_ramc();
+	ret = at91_dt_ramc();
+	if (ret)
+		return;
 
 	/*
 	 * AT91RM9200 SDRAM low-power mode cannot be used with self-refresh.
@@ -895,13 +914,17 @@ void __init sam9x60_pm_init(void)
 	static const int modes[] __initconst = {
 		AT91_PM_STANDBY, AT91_PM_ULP0, AT91_PM_ULP0_FAST, AT91_PM_ULP1,
 	};
+	int ret;
 
 	if (!IS_ENABLED(CONFIG_SOC_SAM9X60))
 		return;
 
 	at91_pm_modes_validate(modes, ARRAY_SIZE(modes));
 	at91_pm_modes_init();
-	at91_dt_ramc();
+	ret = at91_dt_ramc();
+	if (ret)
+		return;
+
 	at91_pm_init(NULL);
 
 	soc_pm.ws_ids = sam9x60_ws_ids;
@@ -910,6 +933,8 @@ void __init sam9x60_pm_init(void)
 
 void __init at91sam9_pm_init(void)
 {
+	int ret;
+
 	if (!IS_ENABLED(CONFIG_SOC_AT91SAM9))
 		return;
 
@@ -921,7 +946,10 @@ void __init at91sam9_pm_init(void)
 	soc_pm.data.standby_mode = AT91_PM_STANDBY;
 	soc_pm.data.suspend_mode = AT91_PM_ULP0;
 
-	at91_dt_ramc();
+	ret = at91_dt_ramc();
+	if (ret)
+		return;
+
 	at91_pm_init(at91sam9_idle);
 }
 
@@ -930,12 +958,16 @@ void __init sama5_pm_init(void)
 	static const int modes[] __initconst = {
 		AT91_PM_STANDBY, AT91_PM_ULP0, AT91_PM_ULP0_FAST,
 	};
+	int ret;
 
 	if (!IS_ENABLED(CONFIG_SOC_SAMA5))
 		return;
 
 	at91_pm_modes_validate(modes, ARRAY_SIZE(modes));
-	at91_dt_ramc();
+	ret = at91_dt_ramc();
+	if (ret)
+		return;
+
 	at91_pm_init(NULL);
 }
 
@@ -945,13 +977,17 @@ void __init sama5d2_pm_init(void)
 		AT91_PM_STANDBY, AT91_PM_ULP0, AT91_PM_ULP0_FAST, AT91_PM_ULP1,
 		AT91_PM_BACKUP,
 	};
+	int ret;
 
 	if (!IS_ENABLED(CONFIG_SOC_SAMA5D2))
 		return;
 
 	at91_pm_modes_validate(modes, ARRAY_SIZE(modes));
 	at91_pm_modes_init();
-	at91_dt_ramc();
+	ret = at91_dt_ramc();
+	if (ret)
+		return;
+
 	at91_pm_init(NULL);
 
 	soc_pm.ws_ids = sama5d2_ws_ids;
-- 
GitLab


From 8f977e97b2b9284b76af46ccf64ce6ceecf60144 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Sat, 28 Aug 2021 15:02:02 +0800
Subject: [PATCH 0215/4878] soc: qcom: mdt_loader: Drop PT_LOAD check on hash
 segment

[ Upstream commit 833d51d7c66d6708abbc02398892b96b950167b9 ]

PT_LOAD type denotes that the segment should be loaded into the final
firmware memory region.  Hash segment is not one such, because it's only
needed for PAS init and shouldn't be in the final firmware memory region.
That's why mdt_phdr_valid() explicitly reject non PT_LOAD segment and
hash segment.  This actually makes the hash segment type check in
qcom_mdt_read_metadata() unnecessary and redundant.  For a hash segment,
it won't be loaded into firmware memory region anyway, due to the
QCOM_MDT_TYPE_HASH check in mdt_phdr_valid(), even if it has a PT_LOAD
type for some reason (misusing or abusing?).

Some firmware files on Sony phones are such examples, e.g WCNSS firmware
of Sony Xperia M4 Aqua phone.  The type of hash segment is just PT_LOAD.
Drop the unnecessary hash segment type check in qcom_mdt_read_metadata()
to fix firmware loading failure on these phones, while hash segment is
still kept away from the final firmware memory region.

Fixes: 498b98e93900 ("soc: qcom: mdt_loader: Support loading non-split images")
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210828070202.7033-1-shawn.guo@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/qcom/mdt_loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/mdt_loader.c b/drivers/soc/qcom/mdt_loader.c
index eba7f76f9d61a..6034cd8992b0e 100644
--- a/drivers/soc/qcom/mdt_loader.c
+++ b/drivers/soc/qcom/mdt_loader.c
@@ -98,7 +98,7 @@ void *qcom_mdt_read_metadata(const struct firmware *fw, size_t *data_len)
 	if (ehdr->e_phnum < 2)
 		return ERR_PTR(-EINVAL);
 
-	if (phdrs[0].p_type == PT_LOAD || phdrs[1].p_type == PT_LOAD)
+	if (phdrs[0].p_type == PT_LOAD)
 		return ERR_PTR(-EINVAL);
 
 	if ((phdrs[1].p_flags & QCOM_MDT_TYPE_MASK) != QCOM_MDT_TYPE_HASH)
-- 
GitLab


From 2ba34cf0c16cbe381c9625b8133648036600012f Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Sun, 5 Sep 2021 02:00:48 +0200
Subject: [PATCH 0216/4878] ARM: dts: imx: Add missing pinctrl-names for panel
 on M53Menlo

[ Upstream commit c8c1efe14a4aadcfe93a158b1272e48298d2de15 ]

The panel already contains pinctrl-0 phandle, but it is missing
the default pinctrl-names property, so the pin configuration is
ignored. Fill in the missing pinctrl-names property, so the pin
configuration is applied.

Fixes: d81765d693db6 ("ARM: dts: imx53: Update LCD panel node on M53Menlo")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx53-m53menlo.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx53-m53menlo.dts b/arch/arm/boot/dts/imx53-m53menlo.dts
index d3082b9774e40..48adcfd32cea9 100644
--- a/arch/arm/boot/dts/imx53-m53menlo.dts
+++ b/arch/arm/boot/dts/imx53-m53menlo.dts
@@ -56,6 +56,7 @@
 	panel {
 		compatible = "edt,etm0700g0dh6";
 		pinctrl-0 = <&pinctrl_display_gpio>;
+		pinctrl-names = "default";
 		enable-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>;
 
 		port {
-- 
GitLab


From 9e99ad4194a503bba830a148a8447b39a46299c0 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Sun, 5 Sep 2021 02:01:37 +0200
Subject: [PATCH 0217/4878] ARM: dts: imx: Fix USB host power regulator
 polarity on M53Menlo

[ Upstream commit 5c187e2eb3f92daa38cb3d4ab45e1107ea34108e ]

The MIC2025 switch input signal nEN is active low, describe it as such
in the DT. The previous change to this regulator polarity was incorrectly
influenced by broken quirks in gpiolib-of.c, which is now long fixed. So
fix this regulator polarity setting here once and for all.

Fixes: 3c3601cd6a6d3 ("ARM: dts: imx53: Update USB configuration on M53Menlo")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx53-m53menlo.dts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx53-m53menlo.dts b/arch/arm/boot/dts/imx53-m53menlo.dts
index 48adcfd32cea9..4f88e96d81ddb 100644
--- a/arch/arm/boot/dts/imx53-m53menlo.dts
+++ b/arch/arm/boot/dts/imx53-m53menlo.dts
@@ -77,8 +77,7 @@
 		regulator-name = "vbus";
 		regulator-min-microvolt = <5000000>;
 		regulator-max-microvolt = <5000000>;
-		gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
-		enable-active-high;
+		gpio = <&gpio1 2 0>;
 	};
 };
 
-- 
GitLab


From d9b838ae390e6867c62fd7330ddcc540350825d3 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Tue, 14 Sep 2021 14:17:15 -0300
Subject: [PATCH 0218/4878] ARM: dts: imx6qdl-pico: Fix Ethernet support

[ Upstream commit 450e7fe9b1b3c90eeed74a2fe0eeb13a7b57f3da ]

Currently, it is no longer possible to retrieve a DHCP address
on the imx6qdl-pico board.

This issue has been exposed by commit f5d9aa79dfdf ("ARM: imx6q:
remove clk-out fixup for the Atheros AR8031 and AR8035 PHYs").

Fix it by describing the qca,clk-out-frequency property as suggested
by the commit above.

Fixes: 98670a0bb0ef14bbb3 ("ARM: dts: imx6qdl: Add imx6qdl-pico support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx6qdl-pico.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-pico.dtsi b/arch/arm/boot/dts/imx6qdl-pico.dtsi
index 5de4ccb979163..f7a56d6b160c8 100644
--- a/arch/arm/boot/dts/imx6qdl-pico.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-pico.dtsi
@@ -176,7 +176,18 @@
 	pinctrl-0 = <&pinctrl_enet>;
 	phy-mode = "rgmii-id";
 	phy-reset-gpios = <&gpio1 26 GPIO_ACTIVE_LOW>;
+	phy-handle = <&phy>;
 	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy: ethernet-phy@1 {
+			reg = <1>;
+			qca,clk-out-frequency = <125000000>;
+		};
+	};
 };
 
 &hdmi {
-- 
GitLab


From 8aef3824e9469445e748d00b89a9f18bb77cab03 Mon Sep 17 00:00:00 2001
From: Long Li <longli@microsoft.com>
Date: Mon, 30 Aug 2021 16:13:27 -0700
Subject: [PATCH 0219/4878] PCI: hv: Fix sleep while in non-sleep context when
 removing child devices from the bus
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 41608b64b10b80fe00dd253cd8326ec8ad85930f ]

In hv_pci_bus_exit, the code is holding a spinlock while calling
pci_destroy_slot(), which takes a mutex.

This is not safe for spinlock. Fix this by moving the children to be
deleted to a list on the stack, and removing them after spinlock is
released.

Fixes: 94d22763207a ("PCI: hv: Fix a race condition when removing the device")

Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Rob Herring <robh@kernel.org>
Cc: "Krzysztof Wilczyński" <kw@linux.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Michael Kelley <mikelley@microsoft.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/linux-hyperv/20210823152130.GA21501@kili/
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
Link: https://lore.kernel.org/r/1630365207-20616-1-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-hyperv.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index 44e15f0e3a2ed..ad3e3cde1c20d 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -3259,9 +3259,17 @@ static int hv_pci_bus_exit(struct hv_device *hdev, bool keep_devs)
 		return 0;
 
 	if (!keep_devs) {
-		/* Delete any children which might still exist. */
+		struct list_head removed;
+
+		/* Move all present children to the list on stack */
+		INIT_LIST_HEAD(&removed);
 		spin_lock_irqsave(&hbus->device_list_lock, flags);
-		list_for_each_entry_safe(hpdev, tmp, &hbus->children, list_entry) {
+		list_for_each_entry_safe(hpdev, tmp, &hbus->children, list_entry)
+			list_move_tail(&hpdev->list_entry, &removed);
+		spin_unlock_irqrestore(&hbus->device_list_lock, flags);
+
+		/* Remove all children in the list */
+		list_for_each_entry_safe(hpdev, tmp, &removed, list_entry) {
 			list_del(&hpdev->list_entry);
 			if (hpdev->pci_slot)
 				pci_destroy_slot(hpdev->pci_slot);
@@ -3269,7 +3277,6 @@ static int hv_pci_bus_exit(struct hv_device *hdev, bool keep_devs)
 			put_pcichild(hpdev);
 			put_pcichild(hpdev);
 		}
-		spin_unlock_irqrestore(&hbus->device_list_lock, flags);
 	}
 
 	ret = hv_send_resources_released(hdev);
-- 
GitLab


From fbca14abc11154683c9ebf534e6f23846a5318f4 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 20 Sep 2021 14:23:44 +0200
Subject: [PATCH 0220/4878] ath5k: fix building with LEDS=m

[ Upstream commit fb8c3a3c52400512fc8b3b61150057b888c30b0d ]

Randconfig builds still show a failure for the ath5k driver,
similar to the one that was fixed for ath9k earlier:

WARNING: unmet direct dependencies detected for MAC80211_LEDS
  Depends on [n]: NET [=y] && WIRELESS [=y] && MAC80211 [=y] && (LEDS_CLASS [=m]=y || LEDS_CLASS [=m]=MAC80211 [=y])
  Selected by [m]:
  - ATH5K [=m] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ATH [=y] && (PCI [=y] || ATH25) && MAC80211 [=y]
net/mac80211/led.c: In function 'ieee80211_alloc_led_names':
net/mac80211/led.c:34:22: error: 'struct led_trigger' has no member named 'name'
   34 |         local->rx_led.name = kasprintf(GFP_KERNEL, "%srx",
      |                      ^

Copying the same logic from my ath9k patch makes this one work
as well, stubbing out the calls to the LED subsystem.

Fixes: b64acb28da83 ("ath9k: fix build error with LEDS_CLASS=m")
Fixes: 72cdab808714 ("ath9k: Do not select MAC80211_LEDS by default")
Fixes: 3a078876caee ("ath5k: convert LED code to use mac80211 triggers")
Link: https://lore.kernel.org/all/20210722105501.1000781-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210920122359.353810-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath5k/Kconfig |  4 +---
 drivers/net/wireless/ath/ath5k/led.c   | 10 ++++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/Kconfig b/drivers/net/wireless/ath/ath5k/Kconfig
index f35cd8de228e4..6914b37bb0fbc 100644
--- a/drivers/net/wireless/ath/ath5k/Kconfig
+++ b/drivers/net/wireless/ath/ath5k/Kconfig
@@ -3,9 +3,7 @@ config ATH5K
 	tristate "Atheros 5xxx wireless cards support"
 	depends on (PCI || ATH25) && MAC80211
 	select ATH_COMMON
-	select MAC80211_LEDS
-	select LEDS_CLASS
-	select NEW_LEDS
+	select MAC80211_LEDS if LEDS_CLASS=y || LEDS_CLASS=MAC80211
 	select ATH5K_AHB if ATH25
 	select ATH5K_PCI if !ATH25
 	help
diff --git a/drivers/net/wireless/ath/ath5k/led.c b/drivers/net/wireless/ath/ath5k/led.c
index 6a2a168567630..33e9928af3635 100644
--- a/drivers/net/wireless/ath/ath5k/led.c
+++ b/drivers/net/wireless/ath/ath5k/led.c
@@ -89,7 +89,8 @@ static const struct pci_device_id ath5k_led_devices[] = {
 
 void ath5k_led_enable(struct ath5k_hw *ah)
 {
-	if (test_bit(ATH_STAT_LEDSOFT, ah->status)) {
+	if (IS_ENABLED(CONFIG_MAC80211_LEDS) &&
+	    test_bit(ATH_STAT_LEDSOFT, ah->status)) {
 		ath5k_hw_set_gpio_output(ah, ah->led_pin);
 		ath5k_led_off(ah);
 	}
@@ -104,7 +105,8 @@ static void ath5k_led_on(struct ath5k_hw *ah)
 
 void ath5k_led_off(struct ath5k_hw *ah)
 {
-	if (!test_bit(ATH_STAT_LEDSOFT, ah->status))
+	if (!IS_ENABLED(CONFIG_MAC80211_LEDS) ||
+	    !test_bit(ATH_STAT_LEDSOFT, ah->status))
 		return;
 	ath5k_hw_set_gpio(ah, ah->led_pin, !ah->led_on);
 }
@@ -146,7 +148,7 @@ ath5k_register_led(struct ath5k_hw *ah, struct ath5k_led *led,
 static void
 ath5k_unregister_led(struct ath5k_led *led)
 {
-	if (!led->ah)
+	if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !led->ah)
 		return;
 	led_classdev_unregister(&led->led_dev);
 	ath5k_led_off(led->ah);
@@ -169,7 +171,7 @@ int ath5k_init_leds(struct ath5k_hw *ah)
 	char name[ATH5K_LED_MAX_NAME_LEN + 1];
 	const struct pci_device_id *match;
 
-	if (!ah->pdev)
+	if (!IS_ENABLED(CONFIG_MAC80211_LEDS) || !ah->pdev)
 		return 0;
 
 #ifdef CONFIG_ATH5K_AHB
-- 
GitLab


From 997bec509a83aeb7f02a795c26ed0280f9a9ceab Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Thu, 16 Sep 2021 18:13:39 +0300
Subject: [PATCH 0221/4878] arm64: dts: qcom: pm8150: use qcom,pm8998-pon
 binding

[ Upstream commit a153d317168aa3d61a204fadc85bac3995381d33 ]

Change pm8150 to use the qcom,pm8998-pon compatible string for the pon
in order to pass reboot mode properly.

Fixes: 5101f22a5c37 ("arm64: dts: qcom: pm8150: Add base dts file")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210916151341.1797512-1-dmitry.baryshkov@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/pm8150.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/pm8150.dtsi b/arch/arm64/boot/dts/qcom/pm8150.dtsi
index 1b6406927509f..82edcd74ce983 100644
--- a/arch/arm64/boot/dts/qcom/pm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8150.dtsi
@@ -48,7 +48,7 @@
 		#size-cells = <0>;
 
 		pon: power-on@800 {
-			compatible = "qcom,pm8916-pon";
+			compatible = "qcom,pm8998-pon";
 			reg = <0x0800>;
 			pwrkey {
 				compatible = "qcom,pm8941-pwrkey";
-- 
GitLab


From 3d288ed98314f31607832ba759f5fb1b90cd9e98 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 24 Sep 2021 20:29:51 -0700
Subject: [PATCH 0222/4878] xtensa: use CONFIG_USE_OF instead of CONFIG_OF
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit d67ed2510d28a1eb33171010d35cf52178cfcbdd ]

CONFIG_OF can be set by a randconfig or by a user -- without setting the
early flattree option (OF_EARLY_FLATTREE).  This causes build errors.
However, if randconfig or a user sets USE_OF in the Xtensa config,
the right kconfig symbols are set to fix the build.

Fixes these build errors:

../arch/xtensa/kernel/setup.c:67:19: error: ‘__dtb_start’ undeclared here (not in a function); did you mean ‘dtb_start’?
   67 | void *dtb_start = __dtb_start;
      |                   ^~~~~~~~~~~
../arch/xtensa/kernel/setup.c: In function 'xtensa_dt_io_area':
../arch/xtensa/kernel/setup.c:201:14: error: implicit declaration of function 'of_flat_dt_is_compatible'; did you mean 'of_machine_is_compatible'? [-Werror=implicit-function-declaration]
  201 |         if (!of_flat_dt_is_compatible(node, "simple-bus"))
../arch/xtensa/kernel/setup.c:204:18: error: implicit declaration of function 'of_get_flat_dt_prop' [-Werror=implicit-function-declaration]
  204 |         ranges = of_get_flat_dt_prop(node, "ranges", &len);
../arch/xtensa/kernel/setup.c:204:16: error: assignment to 'const __be32 *' {aka 'const unsigned int *'} from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
  204 |         ranges = of_get_flat_dt_prop(node, "ranges", &len);
      |                ^
../arch/xtensa/kernel/setup.c: In function 'early_init_devtree':
../arch/xtensa/kernel/setup.c:228:9: error: implicit declaration of function 'early_init_dt_scan'; did you mean 'early_init_devtree'? [-Werror=implicit-function-declaration]
  228 |         early_init_dt_scan(params);
../arch/xtensa/kernel/setup.c:229:9: error: implicit declaration of function 'of_scan_flat_dt' [-Werror=implicit-function-declaration]
  229 |         of_scan_flat_dt(xtensa_dt_io_area, NULL);

xtensa-elf-ld: arch/xtensa/mm/mmu.o:(.text+0x0): undefined reference to `xtensa_kio_paddr'

Fixes: da844a81779e ("xtensa: add device trees support")
Fixes: 6cb971114f63 ("xtensa: remap io area defined in device tree")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/include/asm/kmem_layout.h |  2 +-
 arch/xtensa/kernel/setup.c            | 12 ++++++------
 arch/xtensa/mm/mmu.c                  |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/xtensa/include/asm/kmem_layout.h b/arch/xtensa/include/asm/kmem_layout.h
index 7cbf68ca71060..6fc05cba61a27 100644
--- a/arch/xtensa/include/asm/kmem_layout.h
+++ b/arch/xtensa/include/asm/kmem_layout.h
@@ -78,7 +78,7 @@
 #endif
 #define XCHAL_KIO_SIZE			0x10000000
 
-#if (!XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY) && defined(CONFIG_OF)
+#if (!XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY) && defined(CONFIG_USE_OF)
 #define XCHAL_KIO_PADDR			xtensa_get_kio_paddr()
 #ifndef __ASSEMBLY__
 extern unsigned long xtensa_kio_paddr;
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index ed184106e4cf9..ee9082a142feb 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -63,7 +63,7 @@ extern unsigned long initrd_end;
 extern int initrd_below_start_ok;
 #endif
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 void *dtb_start = __dtb_start;
 #endif
 
@@ -125,7 +125,7 @@ __tagtable(BP_TAG_INITRD, parse_tag_initrd);
 
 #endif /* CONFIG_BLK_DEV_INITRD */
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 
 static int __init parse_tag_fdt(const bp_tag_t *tag)
 {
@@ -135,7 +135,7 @@ static int __init parse_tag_fdt(const bp_tag_t *tag)
 
 __tagtable(BP_TAG_FDT, parse_tag_fdt);
 
-#endif /* CONFIG_OF */
+#endif /* CONFIG_USE_OF */
 
 static int __init parse_tag_cmdline(const bp_tag_t* tag)
 {
@@ -183,7 +183,7 @@ static int __init parse_bootparam(const bp_tag_t *tag)
 }
 #endif
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 
 #if !XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY
 unsigned long xtensa_kio_paddr = XCHAL_KIO_DEFAULT_PADDR;
@@ -232,7 +232,7 @@ void __init early_init_devtree(void *params)
 		strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 }
 
-#endif /* CONFIG_OF */
+#endif /* CONFIG_USE_OF */
 
 /*
  * Initialize architecture. (Early stage)
@@ -253,7 +253,7 @@ void __init init_arch(bp_tag_t *bp_start)
 	if (bp_start)
 		parse_bootparam(bp_start);
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 	early_init_devtree(dtb_start);
 #endif
 
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index fd2193df8a145..511bb92518f28 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -100,7 +100,7 @@ void init_mmu(void)
 
 void init_kio(void)
 {
-#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && defined(CONFIG_OF)
+#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY && defined(CONFIG_USE_OF)
 	/*
 	 * Update the IO area mapping in case xtensa_kio_paddr has changed
 	 */
-- 
GitLab


From 6b0132f73094d1f8d77ab20e02d7d2bf59c3496c Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Mon, 27 Sep 2021 09:46:33 -0700
Subject: [PATCH 0223/4878] xtensa: call irqchip_init only when CONFIG_USE_OF
 is selected

[ Upstream commit 6489f8d0e1d93a3603d8dad8125797559e4cf2a2 ]

During boot time kernel configured with OF=y but USE_OF=n displays the
following warnings and hangs shortly after starting userspace:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/irq/irqdomain.c:695 irq_create_mapping_affinity+0x29/0xc0
irq_create_mapping_affinity(, 6) called with NULL domain
CPU: 0 PID: 0 Comm: swapper Not tainted 5.15.0-rc3-00001-gd67ed2510d28 #30
Call Trace:
  __warn+0x69/0xc4
  warn_slowpath_fmt+0x6c/0x94
  irq_create_mapping_affinity+0x29/0xc0
  local_timer_setup+0x40/0x88
  time_init+0xb1/0xe8
  start_kernel+0x31d/0x3f4
  _startup+0x13b/0x13b
---[ end trace 1e6630e1c5eda35b ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at arch/xtensa/kernel/time.c:141 local_timer_setup+0x58/0x88
error: can't map timer irq
CPU: 0 PID: 0 Comm: swapper Tainted: G        W         5.15.0-rc3-00001-gd67ed2510d28 #30
Call Trace:
  __warn+0x69/0xc4
  warn_slowpath_fmt+0x6c/0x94
  local_timer_setup+0x58/0x88
  time_init+0xb1/0xe8
  start_kernel+0x31d/0x3f4
  _startup+0x13b/0x13b
---[ end trace 1e6630e1c5eda35c ]---
Failed to request irq 0 (timer)

Fix that by calling irqchip_init only when CONFIG_USE_OF is selected and
calling legacy interrupt controller init otherwise.

Fixes: da844a81779e ("xtensa: add device trees support")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/kernel/irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index a48bf2d10ac2d..80cc9770a8d2d 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -145,7 +145,7 @@ unsigned xtensa_get_ext_irq_no(unsigned irq)
 
 void __init init_IRQ(void)
 {
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 	irqchip_init();
 #else
 #ifdef CONFIG_HAVE_SMP
-- 
GitLab


From 29a19eaeb29d57f4576cf57ccac5a2740f1384db Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Date: Fri, 24 Sep 2021 15:21:54 +0300
Subject: [PATCH 0224/4878] iwlwifi: pcie: add configuration of a Wi-Fi adapter
 on Dell XPS 15

[ Upstream commit fe5c735d0d47b495be6753d6aea4f8f78c909a0a ]

There is a Killer AX1650 2x2 Wi-Fi 6 and Bluetooth 5.1 wireless adapter
found on Dell XPS 15 (9510) laptop, its configuration was present on
Linux v5.7, however accidentally it has been removed from the list of
supported devices, let's add it back.

The problem is manifested on driver initialization:

  Intel(R) Wireless WiFi driver for Linux
  iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
  iwlwifi: No config found for PCI dev 43f0/1651, rev=0x354, rfid=0x10a100
  iwlwifi: probe of 0000:00:14.3 failed with error -22

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=213939
Fixes: 3f910a25839b ("iwlwifi: pcie: convert all AX101 devices to the device tables")
Cc: Julien Wajsberg <felash@gmail.com>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Acked-by: Luca Coelho <luca@coelho.fi>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210924122154.2376577-1-vladimir.zapolskiy@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 90b12e201795c..4e43efd5d1ea1 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -635,6 +635,8 @@ static const struct iwl_dev_info iwl_dev_info_table[] = {
 	IWL_DEV_INFO(0x43F0, 0x0074, iwl_ax201_cfg_qu_hr, NULL),
 	IWL_DEV_INFO(0x43F0, 0x0078, iwl_ax201_cfg_qu_hr, NULL),
 	IWL_DEV_INFO(0x43F0, 0x007C, iwl_ax201_cfg_qu_hr, NULL),
+	IWL_DEV_INFO(0x43F0, 0x1651, killer1650s_2ax_cfg_qu_b0_hr_b0, iwl_ax201_killer_1650s_name),
+	IWL_DEV_INFO(0x43F0, 0x1652, killer1650i_2ax_cfg_qu_b0_hr_b0, iwl_ax201_killer_1650i_name),
 	IWL_DEV_INFO(0x43F0, 0x2074, iwl_ax201_cfg_qu_hr, NULL),
 	IWL_DEV_INFO(0x43F0, 0x4070, iwl_ax201_cfg_qu_hr, NULL),
 	IWL_DEV_INFO(0xA0F0, 0x0070, iwl_ax201_cfg_qu_hr, NULL),
-- 
GitLab


From 1d8f4447e8c442f8d2aeabfd3653957015043179 Mon Sep 17 00:00:00 2001
From: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Date: Tue, 28 Sep 2021 11:13:10 +0200
Subject: [PATCH 0225/4878] bpf, arm: Fix register clobbering in div/mod
 implementation

[ Upstream commit 79e3445b38e0cab94264a3894c0c3d57c930b97e ]

On ARM CPUs that lack div/mod instructions, ALU32 BPF_DIV and BPF_MOD are
implemented using a call to a helper function. Before, the emitted code
for those function calls failed to preserve caller-saved ARM registers.
Since some of those registers happen to be mapped to BPF registers, it
resulted in eBPF register values being overwritten.

This patch emits code to push and pop the remaining caller-saved ARM
registers r2-r3 into the stack during the div/mod function call. ARM
registers r0-r1 are used as arguments and return value, and those were
already saved and restored correctly.

Fixes: 39c13c204bb1 ("arm: eBPF JIT compiler")
Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/net/bpf_jit_32.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index ce8b043263521..1214e39aad5ec 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -36,6 +36,10 @@
  *                        +-----+
  *                        |RSVD | JIT scratchpad
  * current ARM_SP =>      +-----+ <= (BPF_FP - STACK_SIZE + SCRATCH_SIZE)
+ *                        | ... | caller-saved registers
+ *                        +-----+
+ *                        | ... | arguments passed on stack
+ * ARM_SP during call =>  +-----|
  *                        |     |
  *                        | ... | Function call stack
  *                        |     |
@@ -63,6 +67,12 @@
  *
  * When popping registers off the stack at the end of a BPF function, we
  * reference them via the current ARM_FP register.
+ *
+ * Some eBPF operations are implemented via a call to a helper function.
+ * Such calls are "invisible" in the eBPF code, so it is up to the calling
+ * program to preserve any caller-saved ARM registers during the call. The
+ * JIT emits code to push and pop those registers onto the stack, immediately
+ * above the callee stack frame.
  */
 #define CALLEE_MASK	(1 << ARM_R4 | 1 << ARM_R5 | 1 << ARM_R6 | \
 			 1 << ARM_R7 | 1 << ARM_R8 | 1 << ARM_R9 | \
@@ -70,6 +80,8 @@
 #define CALLEE_PUSH_MASK (CALLEE_MASK | 1 << ARM_LR)
 #define CALLEE_POP_MASK  (CALLEE_MASK | 1 << ARM_PC)
 
+#define CALLER_MASK	(1 << ARM_R0 | 1 << ARM_R1 | 1 << ARM_R2 | 1 << ARM_R3)
+
 enum {
 	/* Stack layout - these are offsets from (top of stack - 4) */
 	BPF_R2_HI,
@@ -464,6 +476,7 @@ static inline int epilogue_offset(const struct jit_ctx *ctx)
 
 static inline void emit_udivmod(u8 rd, u8 rm, u8 rn, struct jit_ctx *ctx, u8 op)
 {
+	const int exclude_mask = BIT(ARM_R0) | BIT(ARM_R1);
 	const s8 *tmp = bpf2a32[TMP_REG_1];
 
 #if __LINUX_ARM_ARCH__ == 7
@@ -495,11 +508,17 @@ static inline void emit_udivmod(u8 rd, u8 rm, u8 rn, struct jit_ctx *ctx, u8 op)
 		emit(ARM_MOV_R(ARM_R0, rm), ctx);
 	}
 
+	/* Push caller-saved registers on stack */
+	emit(ARM_PUSH(CALLER_MASK & ~exclude_mask), ctx);
+
 	/* Call appropriate function */
 	emit_mov_i(ARM_IP, op == BPF_DIV ?
 		   (u32)jit_udiv32 : (u32)jit_mod32, ctx);
 	emit_blx_r(ARM_IP, ctx);
 
+	/* Restore caller-saved registers from stack */
+	emit(ARM_POP(CALLER_MASK & ~exclude_mask), ctx);
+
 	/* Save return value */
 	if (rd != ARM_R0)
 		emit(ARM_MOV_R(rd, ARM_R0), ctx);
-- 
GitLab


From d5f4b27c3cfcf8be787035d61cf254b747257ac7 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 30 Sep 2021 11:30:03 +0300
Subject: [PATCH 0226/4878] soc: ti: omap-prm: Fix external abort for am335x
 pruss

[ Upstream commit b232537074fcaf0c2837abbb217429c097bb7598 ]

Starting with v5.15-rc1, we may now see some am335x beaglebone black
device produce the following error on pruss probe:

Unhandled fault: external abort on non-linefetch (0x1008) at 0xe0326000

This has started with the enabling of pruss for am335x in the dts files.

Turns out the is caused by the PRM reset handling not waiting for the
reset bit to clear. To fix the issue, let's always wait for the reset
bit to clear, even if there is a separate reset status register.

We attempted to fix a similar issue for dra7 iva with a udelay() in
commit effe89e40037 ("soc: ti: omap-prm: Fix occasional abort on reset
deassert for dra7 iva"). There is no longer a need for the udelay()
for dra7 iva reset either with the check added for reset bit clearing.

Cc: Drew Fustini <pdp7pdp7@gmail.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Robert Nelson <robertcnelson@gmail.com>
Cc: Yongqin Liu <yongqin.liu@linaro.org>
Fixes: effe89e40037 ("soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva")
Reported-by: Matti Vaittinen <mazziesaccount@gmail.com>
Tested-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/ti/omap_prm.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/soc/ti/omap_prm.c b/drivers/soc/ti/omap_prm.c
index fb067b5e4a977..4a782bfd753c3 100644
--- a/drivers/soc/ti/omap_prm.c
+++ b/drivers/soc/ti/omap_prm.c
@@ -509,25 +509,28 @@ static int omap_reset_deassert(struct reset_controller_dev *rcdev,
 	writel_relaxed(v, reset->prm->base + reset->prm->data->rstctrl);
 	spin_unlock_irqrestore(&reset->lock, flags);
 
-	if (!has_rstst)
-		goto exit;
+	/* wait for the reset bit to clear */
+	ret = readl_relaxed_poll_timeout_atomic(reset->prm->base +
+						reset->prm->data->rstctrl,
+						v, !(v & BIT(id)), 1,
+						OMAP_RESET_MAX_WAIT);
+	if (ret)
+		pr_err("%s: timedout waiting for %s:%lu\n", __func__,
+		       reset->prm->data->name, id);
 
 	/* wait for the status to be set */
-	ret = readl_relaxed_poll_timeout_atomic(reset->prm->base +
+	if (has_rstst) {
+		ret = readl_relaxed_poll_timeout_atomic(reset->prm->base +
 						 reset->prm->data->rstst,
 						 v, v & BIT(st_bit), 1,
 						 OMAP_RESET_MAX_WAIT);
-	if (ret)
-		pr_err("%s: timedout waiting for %s:%lu\n", __func__,
-		       reset->prm->data->name, id);
+		if (ret)
+			pr_err("%s: timedout waiting for %s:%lu\n", __func__,
+			       reset->prm->data->name, id);
+	}
 
-exit:
-	if (reset->clkdm) {
-		/* At least dra7 iva needs a delay before clkdm idle */
-		if (has_rstst)
-			udelay(1);
+	if (reset->clkdm)
 		pdata->clkdm_allow_idle(reset->clkdm);
-	}
 
 	return ret;
 }
-- 
GitLab


From 064faa8e8a9b50f5010c5aa5740e06d477677a89 Mon Sep 17 00:00:00 2001
From: Tatsuhiko Yasumatsu <th.yasumatsu@gmail.com>
Date: Thu, 30 Sep 2021 22:55:45 +0900
Subject: [PATCH 0227/4878] bpf: Fix integer overflow in
 prealloc_elems_and_freelist()

[ Upstream commit 30e29a9a2bc6a4888335a6ede968b75cd329657a ]

In prealloc_elems_and_freelist(), the multiplication to calculate the
size passed to bpf_map_area_alloc() could lead to an integer overflow.
As a result, out-of-bounds write could occur in pcpu_freelist_populate()
as reported by KASAN:

[...]
[   16.968613] BUG: KASAN: slab-out-of-bounds in pcpu_freelist_populate+0xd9/0x100
[   16.969408] Write of size 8 at addr ffff888104fc6ea0 by task crash/78
[   16.970038]
[   16.970195] CPU: 0 PID: 78 Comm: crash Not tainted 5.15.0-rc2+ #1
[   16.970878] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
[   16.972026] Call Trace:
[   16.972306]  dump_stack_lvl+0x34/0x44
[   16.972687]  print_address_description.constprop.0+0x21/0x140
[   16.973297]  ? pcpu_freelist_populate+0xd9/0x100
[   16.973777]  ? pcpu_freelist_populate+0xd9/0x100
[   16.974257]  kasan_report.cold+0x7f/0x11b
[   16.974681]  ? pcpu_freelist_populate+0xd9/0x100
[   16.975190]  pcpu_freelist_populate+0xd9/0x100
[   16.975669]  stack_map_alloc+0x209/0x2a0
[   16.976106]  __sys_bpf+0xd83/0x2ce0
[...]

The possibility of this overflow was originally discussed in [0], but
was overlooked.

Fix the integer overflow by changing elem_size to u64 from u32.

  [0] https://lore.kernel.org/bpf/728b238e-a481-eb50-98e9-b0f430ab01e7@gmail.com/

Fixes: 557c0c6e7df8 ("bpf: convert stackmap to pre-allocation")
Signed-off-by: Tatsuhiko Yasumatsu <th.yasumatsu@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210930135545.173698-1-th.yasumatsu@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/stackmap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
index ebf60848d5eb7..4477873ac3a0b 100644
--- a/kernel/bpf/stackmap.c
+++ b/kernel/bpf/stackmap.c
@@ -64,7 +64,8 @@ static inline int stack_map_data_size(struct bpf_map *map)
 
 static int prealloc_elems_and_freelist(struct bpf_stack_map *smap)
 {
-	u32 elem_size = sizeof(struct stack_map_bucket) + smap->map.value_size;
+	u64 elem_size = sizeof(struct stack_map_bucket) +
+			(u64)smap->map.value_size;
 	int err;
 
 	smap->elems = bpf_map_area_alloc(elem_size * smap->map.max_entries,
-- 
GitLab


From d70cb6c77ad983f37a401fd29017da4546c57093 Mon Sep 17 00:00:00 2001
From: Raed Salem <raeds@nvidia.com>
Date: Thu, 26 Aug 2021 17:07:17 +0300
Subject: [PATCH 0228/4878] net/mlx5e: IPSEC RX, enable checksum complete

[ Upstream commit f9a10440f0b1f33faa792af26f4e9823a9b8b6a4 ]

Currently in Rx data path IPsec crypto offloaded packets uses
csum_none flag, so checksum is handled by the stack, this naturally
have some performance/cpu utilization impact on such flows. As Nvidia
NIC starting from ConnectX6DX provides checksum complete value out of
the box also for such flows there is no sense in taking csum_none path,
furthermore the stack (xfrm) have the method to handle checksum complete
corrections for such flows i.e. IPsec trailer removal and consequently
checksum value adjustment.

Because of the above and in addition the ConnectX6DX is the first HW
which supports IPsec crypto offload then it is safe to report csum
complete for IPsec offloaded traffic.

Fixes: b2ac7541e377 ("net/mlx5e: IPsec: Add Connect-X IPsec Rx data path offload")
Signed-off-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index f327b78261ec4..117a593414537 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -999,14 +999,9 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 		goto csum_unnecessary;
 
 	if (likely(is_last_ethertype_ip(skb, &network_depth, &proto))) {
-		u8 ipproto = get_ip_proto(skb, network_depth, proto);
-
-		if (unlikely(ipproto == IPPROTO_SCTP))
+		if (unlikely(get_ip_proto(skb, network_depth, proto) == IPPROTO_SCTP))
 			goto csum_unnecessary;
 
-		if (unlikely(mlx5_ipsec_is_rx_flow(cqe)))
-			goto csum_none;
-
 		stats->csum_complete++;
 		skb->ip_summed = CHECKSUM_COMPLETE;
 		skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
-- 
GitLab


From 6e6f79e39830708f05179cc2d18f552e5cd8c43b Mon Sep 17 00:00:00 2001
From: Moshe Shemesh <moshe@nvidia.com>
Date: Thu, 23 Sep 2021 17:57:47 +0300
Subject: [PATCH 0229/4878] net/mlx5: E-Switch, Fix double allocation of acl
 flow counter

[ Upstream commit a586775f83bd729ad60b56352dbe067f4bb0beee ]

Flow counter is allocated in eswitch legacy acl setting functions
without checking if already allocated by previous setting. Add a check
to avoid such double allocation.

Fixes: 07bab9502641 ("net/mlx5: E-Switch, Refactor eswitch ingress acl codes")
Fixes: ea651a86d468 ("net/mlx5: E-Switch, Refactor eswitch egress acl codes")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../mellanox/mlx5/core/esw/acl/egress_lgcy.c         | 12 ++++++++----
 .../mellanox/mlx5/core/esw/acl/ingress_lgcy.c        |  4 +++-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c
index 3e19b1721303f..b00c7d47833f3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c
@@ -79,12 +79,16 @@ int esw_acl_egress_lgcy_setup(struct mlx5_eswitch *esw,
 	int dest_num = 0;
 	int err = 0;
 
-	if (MLX5_CAP_ESW_EGRESS_ACL(esw->dev, flow_counter)) {
+	if (vport->egress.legacy.drop_counter) {
+		drop_counter = vport->egress.legacy.drop_counter;
+	} else if (MLX5_CAP_ESW_EGRESS_ACL(esw->dev, flow_counter)) {
 		drop_counter = mlx5_fc_create(esw->dev, false);
-		if (IS_ERR(drop_counter))
+		if (IS_ERR(drop_counter)) {
 			esw_warn(esw->dev,
 				 "vport[%d] configure egress drop rule counter err(%ld)\n",
 				 vport->vport, PTR_ERR(drop_counter));
+			drop_counter = NULL;
+		}
 		vport->egress.legacy.drop_counter = drop_counter;
 	}
 
@@ -123,7 +127,7 @@ int esw_acl_egress_lgcy_setup(struct mlx5_eswitch *esw,
 	flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP;
 
 	/* Attach egress drop flow counter */
-	if (!IS_ERR_OR_NULL(drop_counter)) {
+	if (drop_counter) {
 		flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
 		drop_ctr_dst.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
 		drop_ctr_dst.counter_id = mlx5_fc_id(drop_counter);
@@ -162,7 +166,7 @@ void esw_acl_egress_lgcy_cleanup(struct mlx5_eswitch *esw,
 	esw_acl_egress_table_destroy(vport);
 
 clean_drop_counter:
-	if (!IS_ERR_OR_NULL(vport->egress.legacy.drop_counter)) {
+	if (vport->egress.legacy.drop_counter) {
 		mlx5_fc_destroy(esw->dev, vport->egress.legacy.drop_counter);
 		vport->egress.legacy.drop_counter = NULL;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_lgcy.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_lgcy.c
index d64fad2823e73..45570d0a58d2f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_lgcy.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/ingress_lgcy.c
@@ -160,7 +160,9 @@ int esw_acl_ingress_lgcy_setup(struct mlx5_eswitch *esw,
 
 	esw_acl_ingress_lgcy_rules_destroy(vport);
 
-	if (MLX5_CAP_ESW_INGRESS_ACL(esw->dev, flow_counter)) {
+	if (vport->ingress.legacy.drop_counter) {
+		counter = vport->ingress.legacy.drop_counter;
+	} else if (MLX5_CAP_ESW_INGRESS_ACL(esw->dev, flow_counter)) {
 		counter = mlx5_fc_create(esw->dev, false);
 		if (IS_ERR(counter)) {
 			esw_warn(esw->dev,
-- 
GitLab


From 0d2dd40a7be61b89a7c99dae8ee96389d27b413a Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Thu, 30 Sep 2021 20:50:28 +0300
Subject: [PATCH 0230/4878] phy: mdio: fix memory leak

[ Upstream commit ca6e11c337daf7925ff8a2aac8e84490a8691905 ]

Syzbot reported memory leak in MDIO bus interface, the problem was in
wrong state logic.

MDIOBUS_ALLOCATED indicates 2 states:
	1. Bus is only allocated
	2. Bus allocated and __mdiobus_register() fails, but
	   device_register() was called

In case of device_register() has been called we should call put_device()
to correctly free the memory allocated for this device, but mdiobus_free()
calls just kfree(dev) in case of MDIOBUS_ALLOCATED state

To avoid this behaviour we need to set bus->state to MDIOBUS_UNREGISTERED
_before_ calling device_register(), because put_device() should be
called even in case of device_register() failure.

Link: https://lore.kernel.org/netdev/YVMRWNDZDUOvQjHL@shell.armlinux.org.uk/
Fixes: 46abc02175b3 ("phylib: give mdio buses a device tree presence")
Reported-and-tested-by: syzbot+398e7dc692ddbbb4cfec@syzkaller.appspotmail.com
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/eceae1429fbf8fa5c73dd2a0d39d525aa905074d.1633024062.git.paskripkin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/mdio_bus.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index b848439fa837c..2645ca35103c9 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -534,6 +534,13 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
 	bus->dev.groups = NULL;
 	dev_set_name(&bus->dev, "%s", bus->id);
 
+	/* We need to set state to MDIOBUS_UNREGISTERED to correctly release
+	 * the device in mdiobus_free()
+	 *
+	 * State will be updated later in this function in case of success
+	 */
+	bus->state = MDIOBUS_UNREGISTERED;
+
 	err = device_register(&bus->dev);
 	if (err) {
 		pr_err("mii_bus %s failed to register\n", bus->id);
-- 
GitLab


From acff2d182c0768a713cee77442caeb07668bd68f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 30 Sep 2021 14:22:39 -0700
Subject: [PATCH 0231/4878] net_sched: fix NULL deref in fifo_set_limit()

[ Upstream commit 560ee196fe9e5037e5015e2cdb14b3aecb1cd7dc ]

syzbot reported another NULL deref in fifo_set_limit() [1]

I could repro the issue with :

unshare -n
tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit
tc qd replace dev lo parent 1:0 pfifo_fast
tc qd change dev lo root handle 1:0 tbf limit 300000 burst 70000 rate 100Mbit

pfifo_fast does not have a change() operation.
Make fifo_set_limit() more robust about this.

[1]
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 1cf99067 P4D 1cf99067 PUD 7ca49067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 14443 Comm: syz-executor959 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
RSP: 0018:ffffc9000e2f7310 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff8d6ecc00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888024c27910 RDI: ffff888071e34000
RBP: ffff888071e34000 R08: 0000000000000001 R09: ffffffff8fcfb947
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888024c27910
R13: ffff888071e34018 R14: 0000000000000000 R15: ffff88801ef74800
FS:  00007f321d897700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000722c3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fifo_set_limit net/sched/sch_fifo.c:242 [inline]
 fifo_set_limit+0x198/0x210 net/sched/sch_fifo.c:227
 tbf_change+0x6ec/0x16d0 net/sched/sch_tbf.c:418
 qdisc_change net/sched/sch_api.c:1332 [inline]
 tc_modify_qdisc+0xd9a/0x1a60 net/sched/sch_api.c:1634
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5572
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: fb0305ce1b03 ("net-sched: consolidate default fifo qdisc setup")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20210930212239.3430364-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_fifo.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sched/sch_fifo.c b/net/sched/sch_fifo.c
index a579a4131d22d..e1040421b7979 100644
--- a/net/sched/sch_fifo.c
+++ b/net/sched/sch_fifo.c
@@ -233,6 +233,9 @@ int fifo_set_limit(struct Qdisc *q, unsigned int limit)
 	if (strncmp(q->ops->id + 1, "fifo", 4) != 0)
 		return 0;
 
+	if (!q->ops->change)
+		return 0;
+
 	nla = kmalloc(nla_attr_size(sizeof(struct tc_fifo_qopt)), GFP_KERNEL);
 	if (nla) {
 		nla->nla_type = RTM_NEWQDISC;
-- 
GitLab


From 442ea65d0ccb375588ee24027085ba121c9e0653 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Sat, 2 Oct 2021 11:04:09 +0200
Subject: [PATCH 0232/4878] powerpc/fsl/dts: Fix phy-connection-type for
 fm1mac3
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit eed183abc0d3b8adb64fd1363b7cea7986cd58d6 ]

Property phy-connection-type contains invalid value "sgmii-2500" per scheme
defined in file ethernet-controller.yaml.

Correct phy-connection-type value should be "2500base-x".

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 84e0f1c13806 ("powerpc/mpc85xx: Add MDIO bus muxing support to the board device tree(s)")
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/boot/dts/fsl/t1023rdb.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/dts/fsl/t1023rdb.dts b/arch/powerpc/boot/dts/fsl/t1023rdb.dts
index 5ba6fbfca2742..f82f85c65964c 100644
--- a/arch/powerpc/boot/dts/fsl/t1023rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/t1023rdb.dts
@@ -154,7 +154,7 @@
 
 			fm1mac3: ethernet@e4000 {
 				phy-handle = <&sgmii_aqr_phy3>;
-				phy-connection-type = "sgmii-2500";
+				phy-connection-type = "2500base-x";
 				sleep = <&rcpm 0x20000000>;
 			};
 
-- 
GitLab


From 95ba03fb4cb12fb72f6c3d28a1d0388ad4ad9290 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 1 Oct 2021 19:20:33 +0300
Subject: [PATCH 0233/4878] ptp_pch: Load module automatically if ID matches

[ Upstream commit 7cd8b1542a7ba0720c5a0a85ed414a122015228b ]

The driver can't be loaded automatically because it misses
module alias to be provided. Add corresponding MODULE_DEVICE_TABLE()
call to the driver.

Fixes: 863d08ece9bf ("supports eg20t ptp clock")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ptp/ptp_pch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c
index ce10ecd41ba0f..9492ed09518ff 100644
--- a/drivers/ptp/ptp_pch.c
+++ b/drivers/ptp/ptp_pch.c
@@ -651,6 +651,7 @@ static const struct pci_device_id pch_ieee1588_pcidev_id[] = {
 	 },
 	{0}
 };
+MODULE_DEVICE_TABLE(pci, pch_ieee1588_pcidev_id);
 
 static SIMPLE_DEV_PM_OPS(pch_pm_ops, pch_suspend, pch_resume);
 
-- 
GitLab


From 10afd15972630267b01393ae1e133ee48ba814c7 Mon Sep 17 00:00:00 2001
From: Michael Walle <michael@walle.cc>
Date: Thu, 1 Oct 2020 11:11:30 +0200
Subject: [PATCH 0234/4878] arm64: dts: ls1028a: add missing CAN nodes

[ Upstream commit 04fa4f03e3533f51b4db19cb487435f5862a0514 ]

The LS1028A has two FlexCAN controller. These are compatible with
the ones from the LX2160A. Add the nodes.

The first controller was tested on the Kontron sl28 board.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index 5f42904d53ab6..580690057601c 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -386,6 +386,24 @@
 			status = "disabled";
 		};
 
+		can0: can@2180000 {
+			compatible = "fsl,ls1028ar1-flexcan", "fsl,lx2160ar1-flexcan";
+			reg = <0x0 0x2180000 0x0 0x10000>;
+			interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&sysclk>, <&clockgen 4 1>;
+			clock-names = "ipg", "per";
+			status = "disabled";
+		};
+
+		can1: can@2190000 {
+			compatible = "fsl,ls1028ar1-flexcan", "fsl,lx2160ar1-flexcan";
+			reg = <0x0 0x2190000 0x0 0x10000>;
+			interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&sysclk>, <&clockgen 4 1>;
+			clock-names = "ipg", "per";
+			status = "disabled";
+		};
+
 		duart0: serial@21c0500 {
 			compatible = "fsl,ns16550", "ns16550a";
 			reg = <0x00 0x21c0500 0x0 0x100>;
-- 
GitLab


From 2b0035d1058a8535f99e57f55f6045bda08f81c6 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 24 Sep 2021 14:35:12 +0200
Subject: [PATCH 0235/4878] dt-bindings: drm/bridge: ti-sn65dsi86: Fix reg
 value

[ Upstream commit b2d70c0dbf2731a37d1c7bcc86ab2387954d5f56 ]

make dtbs_check:

    arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dt.yaml: bridge@2c: reg:0:0: 45 was expected

According to the datasheet, the I2C address can be either 0x2c or 0x2d,
depending on the ADDR control input.

Fixes: e3896e6dddf0b821 ("dt-bindings: drm/bridge: Document sn65dsi86 bridge bindings")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Link: https://lore.kernel.org/r/08f73c2aa0d4e580303357dfae107d084d962835.1632486753.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../devicetree/bindings/display/bridge/ti,sn65dsi86.yaml        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
index f8622bd0f61ee..f0e0345da498f 100644
--- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
@@ -18,7 +18,7 @@ properties:
     const: ti,sn65dsi86
 
   reg:
-    const: 0x2d
+    enum: [ 0x2c, 0x2d ]
 
   enable-gpios:
     maxItems: 1
-- 
GitLab


From cb8880680bdfde95aa4836807d81400f0a449117 Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: Tue, 28 Sep 2021 15:49:40 +0200
Subject: [PATCH 0236/4878] ARM: imx6: disable the GIC CPU interface before
 calling stby-poweroff sequence

[ Upstream commit 783f3db030563f7bcdfe2d26428af98ea1699a8e ]

Any pending interrupt can prevent entering standby based power off state.
To avoid it, disable the GIC CPU interface.

Fixes: 8148d2136002 ("ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-imx/pm-imx6.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index 40c74b4c4d730..e24409c1f5d39 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -9,6 +9,7 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/genalloc.h>
+#include <linux/irqchip/arm-gic.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <linux/of.h>
@@ -618,6 +619,7 @@ static void __init imx6_pm_common_init(const struct imx6_pm_socdata
 
 static void imx6_pm_stby_poweroff(void)
 {
+	gic_cpu_if_down(0);
 	imx6_set_lpm(STOP_POWER_OFF);
 	imx6q_suspend_finish(0);
 
-- 
GitLab


From c480d15190eba5a552aa66570dceeaba4863048b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 4 Oct 2021 18:05:07 -0700
Subject: [PATCH 0237/4878] net: bridge: use nla_total_size_64bit() in
 br_get_linkxstats_size()

[ Upstream commit dbe0b88064494b7bb6a9b2aa7e085b14a3112d44 ]

bridge_fill_linkxstats() is using nla_reserve_64bit().

We must use nla_total_size_64bit() instead of nla_total_size()
for corresponding data structure.

Fixes: 1080ab95e3c7 ("net: bridge: add support for IGMP/MLD stats and export them via netlink")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Nikolay Aleksandrov <nikolay@nvidia.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 73f71c22f4c03..bfe6ab1914c82 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1590,7 +1590,7 @@ static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
 	}
 
 	return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
-	       nla_total_size(sizeof(struct br_mcast_stats)) +
+	       nla_total_size_64bit(sizeof(struct br_mcast_stats)) +
 	       nla_total_size(0);
 }
 
-- 
GitLab


From 60955b65bd6a7dca624dd36c9a77b3326a6851a6 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 4 Oct 2021 18:05:08 -0700
Subject: [PATCH 0238/4878] net: bridge: fix under estimation in
 br_get_linkxstats_size()

[ Upstream commit 0854a0513321cf70bea5fa483ebcaa983cc7c62e ]

Commit de1799667b00 ("net: bridge: add STP xstats")
added an additional nla_reserve_64bit() in br_fill_linkxstats(),
but forgot to update br_get_linkxstats_size() accordingly.

This can trigger the following in rtnl_stats_get()

	WARN_ON(err == -EMSGSIZE);

Fixes: de1799667b00 ("net: bridge: add STP xstats")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Nikolay Aleksandrov <nikolay@nvidia.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_netlink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index bfe6ab1914c82..31b00ba5dcc84 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1591,6 +1591,7 @@ static size_t br_get_linkxstats_size(const struct net_device *dev, int attr)
 
 	return numvls * nla_total_size(sizeof(struct bridge_vlan_xstats)) +
 	       nla_total_size_64bit(sizeof(struct br_mcast_stats)) +
+	       (p ? nla_total_size_64bit(sizeof(p->stp_xstats)) : 0) +
 	       nla_total_size(0);
 }
 
-- 
GitLab


From 3ec73ffeef54596c32aff0e73fe60971b9c8b866 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 4 Oct 2021 12:55:22 -0700
Subject: [PATCH 0239/4878] net/sched: sch_taprio: properly cancel timer from
 taprio_destroy()

[ Upstream commit a56d447f196fa9973c568f54c0d76d5391c3b0c0 ]

There is a comment in qdisc_create() about us not calling ops->reset()
in some cases.

err_out4:
	/*
	 * Any broken qdiscs that would require a ops->reset() here?
	 * The qdisc was never in action so it shouldn't be necessary.
	 */

As taprio sets a timer before actually receiving a packet, we need
to cancel it from ops->destroy, just in case ops->reset has not
been called.

syzbot reported:

ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64_64.h:22
WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 8441 Comm: syz-executor813 Not tainted 5.14.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd e0 d3 e3 89 4c 89 ee 48 c7 c7 e0 c7 e3 89 e8 5b 86 11 05 <0f> 0b 83 05 85 03 92 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000130f330 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff88802baeb880 RSI: ffffffff815d87b5 RDI: fffff52000261e58
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815d25ee R11: 0000000000000000 R12: ffffffff898dd020
R13: ffffffff89e3ce20 R14: ffffffff81653630 R15: dffffc0000000000
FS:  0000000000f0d300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb64b3e000 CR3: 0000000036557000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __debug_check_no_obj_freed lib/debugobjects.c:987 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1018
 slab_free_hook mm/slub.c:1603 [inline]
 slab_free_freelist_hook+0x171/0x240 mm/slub.c:1653
 slab_free mm/slub.c:3213 [inline]
 kfree+0xe4/0x540 mm/slub.c:4267
 qdisc_create+0xbcf/0x1320 net/sched/sch_api.c:1299
 tc_modify_qdisc+0x4c8/0x1a60 net/sched/sch_api.c:1663
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2403
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2457
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2486
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80

Fixes: 44d4775ca518 ("net/sched: sch_taprio: reset child qdiscs before freeing them")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Davide Caratti <dcaratti@redhat.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Acked-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_taprio.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index cb5e5220da552..93899559ba6d2 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -1630,6 +1630,10 @@ static void taprio_destroy(struct Qdisc *sch)
 	list_del(&q->taprio_list);
 	spin_unlock(&taprio_list_lock);
 
+	/* Note that taprio_reset() might not be called if an error
+	 * happens in qdisc_create(), after taprio_init() has been called.
+	 */
+	hrtimer_cancel(&q->advance_timer);
 
 	taprio_disable_offload(dev, q, NULL);
 
-- 
GitLab


From 144715fbab1be6a2fbb0062ae2a33da6eeee7935 Mon Sep 17 00:00:00 2001
From: Sean Anderson <sean.anderson@seco.com>
Date: Mon, 4 Oct 2021 17:50:02 -0400
Subject: [PATCH 0240/4878] net: sfp: Fix typo in state machine debug string

[ Upstream commit 25a9da6641f1f66006e93ddbefee13a437efa8c0 ]

The string should be "tx_disable" to match the state enum.

Fixes: 4005a7cb4f55 ("net: phy: sftp: print debug message with text, not numbers")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/sfp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 2fff62695455d..32c34c728c7a1 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -133,7 +133,7 @@ static const char * const sm_state_strings[] = {
 	[SFP_S_LINK_UP] = "link_up",
 	[SFP_S_TX_FAULT] = "tx_fault",
 	[SFP_S_REINIT] = "reinit",
-	[SFP_S_TX_DISABLE] = "rx_disable",
+	[SFP_S_TX_DISABLE] = "tx_disable",
 };
 
 static const char *sm_state_to_str(unsigned short sm_state)
-- 
GitLab


From 628b31d96711ebacca39a961ee676861ec2d63d0 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 4 Oct 2021 14:24:15 -0700
Subject: [PATCH 0241/4878] netlink: annotate data races around nlk->bound

[ Upstream commit 7707a4d01a648e4c655101a469c956cb11273655 ]

While existing code is correct, KCSAN is reporting
a data-race in netlink_insert / netlink_sendmsg [1]

It is correct to read nlk->bound without a lock, as netlink_autobind()
will acquire all needed locks.

[1]
BUG: KCSAN: data-race in netlink_insert / netlink_sendmsg

write to 0xffff8881031c8b30 of 1 bytes by task 18752 on cpu 0:
 netlink_insert+0x5cc/0x7f0 net/netlink/af_netlink.c:597
 netlink_autobind+0xa9/0x150 net/netlink/af_netlink.c:842
 netlink_sendmsg+0x479/0x7c0 net/netlink/af_netlink.c:1892
 sock_sendmsg_nosec net/socket.c:703 [inline]
 sock_sendmsg net/socket.c:723 [inline]
 ____sys_sendmsg+0x360/0x4d0 net/socket.c:2392
 ___sys_sendmsg net/socket.c:2446 [inline]
 __sys_sendmsg+0x1ed/0x270 net/socket.c:2475
 __do_sys_sendmsg net/socket.c:2484 [inline]
 __se_sys_sendmsg net/socket.c:2482 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2482
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881031c8b30 of 1 bytes by task 18751 on cpu 1:
 netlink_sendmsg+0x270/0x7c0 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:703 [inline]
 sock_sendmsg net/socket.c:723 [inline]
 __sys_sendto+0x2a8/0x370 net/socket.c:2019
 __do_sys_sendto net/socket.c:2031 [inline]
 __se_sys_sendto net/socket.c:2027 [inline]
 __x64_sys_sendto+0x74/0x90 net/socket.c:2027
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 18751 Comm: syz-executor.0 Not tainted 5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: da314c9923fe ("netlink: Replace rhash_portid with bound")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netlink/af_netlink.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 8434da3c0487a..0886267ea81ef 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -586,7 +586,10 @@ static int netlink_insert(struct sock *sk, u32 portid)
 
 	/* We need to ensure that the socket is hashed and visible. */
 	smp_wmb();
-	nlk_sk(sk)->bound = portid;
+	/* Paired with lockless reads from netlink_bind(),
+	 * netlink_connect() and netlink_sendmsg().
+	 */
+	WRITE_ONCE(nlk_sk(sk)->bound, portid);
 
 err:
 	release_sock(sk);
@@ -1004,7 +1007,8 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
 	if (nlk->ngroups < BITS_PER_LONG)
 		groups &= (1UL << nlk->ngroups) - 1;
 
-	bound = nlk->bound;
+	/* Paired with WRITE_ONCE() in netlink_insert() */
+	bound = READ_ONCE(nlk->bound);
 	if (bound) {
 		/* Ensure nlk->portid is up-to-date. */
 		smp_rmb();
@@ -1090,8 +1094,9 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr,
 
 	/* No need for barriers here as we return to user-space without
 	 * using any of the bound attributes.
+	 * Paired with WRITE_ONCE() in netlink_insert().
 	 */
-	if (!nlk->bound)
+	if (!READ_ONCE(nlk->bound))
 		err = netlink_autobind(sock);
 
 	if (err == 0) {
@@ -1880,7 +1885,8 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 		dst_group = nlk->dst_group;
 	}
 
-	if (!nlk->bound) {
+	/* Paired with WRITE_ONCE() in netlink_insert() */
+	if (!READ_ONCE(nlk->bound)) {
 		err = netlink_autobind(sock);
 		if (err)
 			goto out;
-- 
GitLab


From 40a84fcae2bf3003cc4f84ea8d6040838031f7ff Mon Sep 17 00:00:00 2001
From: John Garry <john.garry@huawei.com>
Date: Thu, 22 Oct 2020 19:02:26 +0800
Subject: [PATCH 0242/4878] perf jevents: Tidy error handling

[ Upstream commit fa1b41a74d1136cbdd6960f36d7b9c7aa35c8139 ]

There is much duplication in the error handling for directory transvering
for prcessing JSONs.

Factor out the common code to tidy a bit.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-By: Kajol Jain<kjain@linux.ibm.com>
Link: https://lore.kernel.org/r/1603364547-197086-2-git-send-email-john.garry@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/pmu-events/jevents.c | 83 ++++++++++++++-------------------
 1 file changed, 35 insertions(+), 48 deletions(-)

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index dcfdf6a322dc4..c679a79aef513 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -1100,12 +1100,13 @@ static int process_one_file(const char *fpath, const struct stat *sb,
  */
 int main(int argc, char *argv[])
 {
-	int rc, ret = 0;
+	int rc, ret = 0, empty_map = 0;
 	int maxfds;
 	char ldirname[PATH_MAX];
 	const char *arch;
 	const char *output_file;
 	const char *start_dirname;
+	char *err_string_ext = "";
 	struct stat stbuf;
 
 	prog = basename(argv[0]);
@@ -1133,7 +1134,8 @@ int main(int argc, char *argv[])
 	/* If architecture does not have any event lists, bail out */
 	if (stat(ldirname, &stbuf) < 0) {
 		pr_info("%s: Arch %s has no PMU event lists\n", prog, arch);
-		goto empty_map;
+		empty_map = 1;
+		goto err_close_eventsfp;
 	}
 
 	/* Include pmu-events.h first */
@@ -1150,75 +1152,60 @@ int main(int argc, char *argv[])
 	 */
 
 	maxfds = get_maxfds();
-	mapfile = NULL;
 	rc = nftw(ldirname, preprocess_arch_std_files, maxfds, 0);
-	if (rc && verbose) {
-		pr_info("%s: Error preprocessing arch standard files %s\n",
-			prog, ldirname);
-		goto empty_map;
-	} else if (rc < 0) {
-		/* Make build fail */
-		fclose(eventsfp);
-		free_arch_std_events();
-		return 1;
-	} else if (rc) {
-		goto empty_map;
-	}
+	if (rc)
+		goto err_processing_std_arch_event_dir;
 
 	rc = nftw(ldirname, process_one_file, maxfds, 0);
-	if (rc && verbose) {
-		pr_info("%s: Error walking file tree %s\n", prog, ldirname);
-		goto empty_map;
-	} else if (rc < 0) {
-		/* Make build fail */
-		fclose(eventsfp);
-		free_arch_std_events();
-		ret = 1;
-		goto out_free_mapfile;
-	} else if (rc) {
-		goto empty_map;
-	}
+	if (rc)
+		goto err_processing_dir;
 
 	sprintf(ldirname, "%s/test", start_dirname);
 
 	rc = nftw(ldirname, process_one_file, maxfds, 0);
-	if (rc && verbose) {
-		pr_info("%s: Error walking file tree %s rc=%d for test\n",
-			prog, ldirname, rc);
-		goto empty_map;
-	} else if (rc < 0) {
-		/* Make build fail */
-		free_arch_std_events();
-		ret = 1;
-		goto out_free_mapfile;
-	} else if (rc) {
-		goto empty_map;
-	}
+	if (rc)
+		goto err_processing_dir;
 
 	if (close_table)
 		print_events_table_suffix(eventsfp);
 
 	if (!mapfile) {
 		pr_info("%s: No CPU->JSON mapping?\n", prog);
-		goto empty_map;
+		empty_map = 1;
+		goto err_close_eventsfp;
 	}
 
-	if (process_mapfile(eventsfp, mapfile)) {
+	rc = process_mapfile(eventsfp, mapfile);
+	fclose(eventsfp);
+	if (rc) {
 		pr_info("%s: Error processing mapfile %s\n", prog, mapfile);
 		/* Make build fail */
-		fclose(eventsfp);
-		free_arch_std_events();
 		ret = 1;
+		goto err_out;
 	}
 
+	free_arch_std_events();
+	free(mapfile);
+	return 0;
 
-	goto out_free_mapfile;
-
-empty_map:
+err_processing_std_arch_event_dir:
+	err_string_ext = " for std arch event";
+err_processing_dir:
+	if (verbose) {
+		pr_info("%s: Error walking file tree %s%s\n", prog, ldirname,
+			err_string_ext);
+		empty_map = 1;
+	} else if (rc < 0) {
+		ret = 1;
+	} else {
+		empty_map = 1;
+	}
+err_close_eventsfp:
 	fclose(eventsfp);
-	create_empty_mapping(output_file);
+	if (empty_map)
+		create_empty_mapping(output_file);
+err_out:
 	free_arch_std_events();
-out_free_mapfile:
 	free(mapfile);
 	return ret;
 }
-- 
GitLab


From 18d2568cc7ffb05537a503bd2852d414e51b4fe9 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 8 Sep 2021 08:49:36 +0300
Subject: [PATCH 0243/4878] bus: ti-sysc: Use CLKDM_NOAUTO for dra7 dcan1 for
 errata i893

[ Upstream commit b13a270ace2e4c70653aa1d1d0394c553905802f ]

Commit 94f6345712b3 ("bus: ti-sysc: Implement quirk handling for
CLKDM_NOAUTO") should have also added the quirk for dra7 dcan1 in
addition to dcan2 for errata i893 handling.

Let's also pass the quirk flag for legacy mode booting for if "ti,hwmods"
dts property is used with related dcan hwmod data. This should be only
needed if anybody needs to git bisect earlier stable trees though.

Fixes: 94f6345712b3 ("bus: ti-sysc: Implement quirk handling for CLKDM_NOAUTO")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-omap2/omap_hwmod.c | 2 ++
 drivers/bus/ti-sysc.c            | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 83d595ebcf1f6..9443f129859b2 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -3618,6 +3618,8 @@ int omap_hwmod_init_module(struct device *dev,
 		oh->flags |= HWMOD_SWSUP_SIDLE_ACT;
 	if (data->cfg->quirks & SYSC_QUIRK_SWSUP_MSTANDBY)
 		oh->flags |= HWMOD_SWSUP_MSTANDBY;
+	if (data->cfg->quirks & SYSC_QUIRK_CLKDM_NOAUTO)
+		oh->flags |= HWMOD_CLKDM_NOAUTO;
 
 	error = omap_hwmod_check_module(dev, oh, data, sysc_fields,
 					rev_offs, sysc_offs, syss_offs,
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index d2b7338c073f7..02341fd66e8d2 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1464,6 +1464,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 	/* Quirks that need to be set based on detected module */
 	SYSC_QUIRK("aess", 0, 0, 0x10, -ENODEV, 0x40000000, 0xffffffff,
 		   SYSC_MODULE_QUIRK_AESS),
+	/* Errata i893 handling for dra7 dcan1 and 2 */
+	SYSC_QUIRK("dcan", 0x4ae3c000, 0x20, -ENODEV, -ENODEV, 0xa3170504, 0xffffffff,
+		   SYSC_QUIRK_CLKDM_NOAUTO),
 	SYSC_QUIRK("dcan", 0x48480000, 0x20, -ENODEV, -ENODEV, 0xa3170504, 0xffffffff,
 		   SYSC_QUIRK_CLKDM_NOAUTO),
 	SYSC_QUIRK("dss", 0x4832a000, 0, 0x10, 0x14, 0x00000020, 0xffffffff,
-- 
GitLab


From d2ccbaaa6615332e4c28c6f99f54876414de1d1f Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Wed, 15 Sep 2021 19:58:36 +0200
Subject: [PATCH 0244/4878] drm/sun4i: dw-hdmi: Fix HDMI PHY clock setup

[ Upstream commit c64c8e04a12ed3e2238761e26cda78e72550dc98 ]

Recent rework, which made HDMI PHY driver a platform device, inadvertely
reversed clock setup order. HW is very touchy about it. Proper way is to
handle controllers resets and clocks first and HDMI PHYs second.

Currently, without this fix, first mode set completely fails (nothing on
HDMI monitor) on H3 era PHYs. On H6, it still somehow work.

Move HDMI PHY reset & clocks handling to sun8i_hdmi_phy_init() which
will assure that code is executed after controllers reset & clocks are
handled. Additionally, add sun8i_hdmi_phy_deinit() which will deinit
them at controllers driver unload.

Tested on A64, H3, H6 and R40.

Fixes: 9bf3797796f5 ("drm/sun4i: dw-hdmi: Make HDMI PHY into a platform device")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210915175836.3158839-1-jernej.skrabec@gmail.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c  |  7 +-
 drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h  |  4 +-
 drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 97 ++++++++++++++------------
 3 files changed, 61 insertions(+), 47 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
index f75fb157f2ff7..016b877051dab 100644
--- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
+++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
@@ -216,11 +216,13 @@ static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master,
 		goto err_disable_clk_tmds;
 	}
 
+	ret = sun8i_hdmi_phy_init(hdmi->phy);
+	if (ret)
+		goto err_disable_clk_tmds;
+
 	drm_encoder_helper_add(encoder, &sun8i_dw_hdmi_encoder_helper_funcs);
 	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
 
-	sun8i_hdmi_phy_init(hdmi->phy);
-
 	plat_data->mode_valid = hdmi->quirks->mode_valid;
 	plat_data->use_drm_infoframe = hdmi->quirks->use_drm_infoframe;
 	sun8i_hdmi_phy_set_ops(hdmi->phy, plat_data);
@@ -262,6 +264,7 @@ static void sun8i_dw_hdmi_unbind(struct device *dev, struct device *master,
 	struct sun8i_dw_hdmi *hdmi = dev_get_drvdata(dev);
 
 	dw_hdmi_unbind(hdmi->hdmi);
+	sun8i_hdmi_phy_deinit(hdmi->phy);
 	clk_disable_unprepare(hdmi->clk_tmds);
 	reset_control_assert(hdmi->rst_ctrl);
 	gpiod_set_value(hdmi->ddc_en, 0);
diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
index 74f6ed0e25709..bffe1b9cd3dcb 100644
--- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
+++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
@@ -169,6 +169,7 @@ struct sun8i_hdmi_phy {
 	struct clk			*clk_phy;
 	struct clk			*clk_pll0;
 	struct clk			*clk_pll1;
+	struct device			*dev;
 	unsigned int			rcal;
 	struct regmap			*regs;
 	struct reset_control		*rst_phy;
@@ -205,7 +206,8 @@ encoder_to_sun8i_dw_hdmi(struct drm_encoder *encoder)
 
 int sun8i_hdmi_phy_get(struct sun8i_dw_hdmi *hdmi, struct device_node *node);
 
-void sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy);
+int sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy);
+void sun8i_hdmi_phy_deinit(struct sun8i_hdmi_phy *phy);
 void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
 			    struct dw_hdmi_plat_data *plat_data);
 
diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
index c9239708d398c..b64d93da651d2 100644
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
@@ -506,9 +506,60 @@ static void sun8i_hdmi_phy_init_h3(struct sun8i_hdmi_phy *phy)
 	phy->rcal = (val & SUN8I_HDMI_PHY_ANA_STS_RCAL_MASK) >> 2;
 }
 
-void sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy)
+int sun8i_hdmi_phy_init(struct sun8i_hdmi_phy *phy)
 {
+	int ret;
+
+	ret = reset_control_deassert(phy->rst_phy);
+	if (ret) {
+		dev_err(phy->dev, "Cannot deassert phy reset control: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(phy->clk_bus);
+	if (ret) {
+		dev_err(phy->dev, "Cannot enable bus clock: %d\n", ret);
+		goto err_assert_rst_phy;
+	}
+
+	ret = clk_prepare_enable(phy->clk_mod);
+	if (ret) {
+		dev_err(phy->dev, "Cannot enable mod clock: %d\n", ret);
+		goto err_disable_clk_bus;
+	}
+
+	if (phy->variant->has_phy_clk) {
+		ret = sun8i_phy_clk_create(phy, phy->dev,
+					   phy->variant->has_second_pll);
+		if (ret) {
+			dev_err(phy->dev, "Couldn't create the PHY clock\n");
+			goto err_disable_clk_mod;
+		}
+
+		clk_prepare_enable(phy->clk_phy);
+	}
+
 	phy->variant->phy_init(phy);
+
+	return 0;
+
+err_disable_clk_mod:
+	clk_disable_unprepare(phy->clk_mod);
+err_disable_clk_bus:
+	clk_disable_unprepare(phy->clk_bus);
+err_assert_rst_phy:
+	reset_control_assert(phy->rst_phy);
+
+	return ret;
+}
+
+void sun8i_hdmi_phy_deinit(struct sun8i_hdmi_phy *phy)
+{
+	clk_disable_unprepare(phy->clk_mod);
+	clk_disable_unprepare(phy->clk_bus);
+	clk_disable_unprepare(phy->clk_phy);
+
+	reset_control_assert(phy->rst_phy);
 }
 
 void sun8i_hdmi_phy_set_ops(struct sun8i_hdmi_phy *phy,
@@ -638,6 +689,7 @@ static int sun8i_hdmi_phy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	phy->variant = (struct sun8i_hdmi_phy_variant *)match->data;
+	phy->dev = dev;
 
 	ret = of_address_to_resource(node, 0, &res);
 	if (ret) {
@@ -696,47 +748,10 @@ static int sun8i_hdmi_phy_probe(struct platform_device *pdev)
 		goto err_put_clk_pll1;
 	}
 
-	ret = reset_control_deassert(phy->rst_phy);
-	if (ret) {
-		dev_err(dev, "Cannot deassert phy reset control: %d\n", ret);
-		goto err_put_rst_phy;
-	}
-
-	ret = clk_prepare_enable(phy->clk_bus);
-	if (ret) {
-		dev_err(dev, "Cannot enable bus clock: %d\n", ret);
-		goto err_deassert_rst_phy;
-	}
-
-	ret = clk_prepare_enable(phy->clk_mod);
-	if (ret) {
-		dev_err(dev, "Cannot enable mod clock: %d\n", ret);
-		goto err_disable_clk_bus;
-	}
-
-	if (phy->variant->has_phy_clk) {
-		ret = sun8i_phy_clk_create(phy, dev,
-					   phy->variant->has_second_pll);
-		if (ret) {
-			dev_err(dev, "Couldn't create the PHY clock\n");
-			goto err_disable_clk_mod;
-		}
-
-		clk_prepare_enable(phy->clk_phy);
-	}
-
 	platform_set_drvdata(pdev, phy);
 
 	return 0;
 
-err_disable_clk_mod:
-	clk_disable_unprepare(phy->clk_mod);
-err_disable_clk_bus:
-	clk_disable_unprepare(phy->clk_bus);
-err_deassert_rst_phy:
-	reset_control_assert(phy->rst_phy);
-err_put_rst_phy:
-	reset_control_put(phy->rst_phy);
 err_put_clk_pll1:
 	clk_put(phy->clk_pll1);
 err_put_clk_pll0:
@@ -753,12 +768,6 @@ static int sun8i_hdmi_phy_remove(struct platform_device *pdev)
 {
 	struct sun8i_hdmi_phy *phy = platform_get_drvdata(pdev);
 
-	clk_disable_unprepare(phy->clk_mod);
-	clk_disable_unprepare(phy->clk_bus);
-	clk_disable_unprepare(phy->clk_phy);
-
-	reset_control_assert(phy->rst_phy);
-
 	reset_control_put(phy->rst_phy);
 
 	clk_put(phy->clk_pll0);
-- 
GitLab


From 008224cdc12628d21a3eb92259fa3aa3ea5b22a1 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Tue, 21 Sep 2021 22:21:02 +0100
Subject: [PATCH 0245/4878] video: fbdev: gbefb: Only instantiate device when
 built for IP32

[ Upstream commit 11b8e2bb986d23157e82e267fb8cc6b281dfdee9 ]

The gbefb driver not only registers a driver but also the device for that
driver. This is all well and good when run on the IP32 machines that are
supported by the driver but since the driver supports building with
COMPILE_TEST we might also be building on other platforms which do not have
this hardware and will crash instantiating the driver. Add an IS_ENABLED()
check so we compile out the device registration if we don't have the Kconfig
option for the machine enabled.

Fixes: 552ccf6b259d290c0c ("video: fbdev: gbefb: add COMPILE_TEST support")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210921212102.30803-1-broonie@kernel.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/gbefb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c
index 31270a8986e8e..8f8ca1f88fe21 100644
--- a/drivers/video/fbdev/gbefb.c
+++ b/drivers/video/fbdev/gbefb.c
@@ -1269,7 +1269,7 @@ static struct platform_device *gbefb_device;
 static int __init gbefb_init(void)
 {
 	int ret = platform_driver_register(&gbefb_driver);
-	if (!ret) {
+	if (IS_ENABLED(CONFIG_SGI_IP32) && !ret) {
 		gbefb_device = platform_device_alloc("gbefb", 0);
 		if (gbefb_device) {
 			ret = platform_device_add(gbefb_device);
-- 
GitLab


From f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 Mon Sep 17 00:00:00 2001
From: Jeremy Cline <jcline@redhat.com>
Date: Wed, 2 Dec 2020 19:02:20 -0500
Subject: [PATCH 0246/4878] drm/nouveau: avoid a use-after-free when BO init
 fails

[ Upstream commit bcf34aa5082ee2343574bc3f4d1c126030913e54 ]

nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code
back to the caller. On failures, ttm_bo_init() invokes the provided
destructor which should de-initialize and free the memory.

Thus, when nouveau_bo_init() returns an error the gem object has already
been released and the memory freed by nouveau_bo_del_ttm().

Fixes: 019cbd4a4feb ("drm/nouveau: Initialize GEM object before TTM object")
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201203000220.18238-1-jcline@redhat.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_gem.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index c2051380d18c0..6504ebec11901 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -196,10 +196,8 @@ nouveau_gem_new(struct nouveau_cli *cli, u64 size, int align, uint32_t domain,
 	}
 
 	ret = nouveau_bo_init(nvbo, size, align, domain, NULL, NULL);
-	if (ret) {
-		nouveau_bo_ref(NULL, &nvbo);
+	if (ret)
 		return ret;
-	}
 
 	/* we restrict allowed domains on nv50+ to only the types
 	 * that were requested at creation time.  not possibly on
-- 
GitLab


From 65fff0a8efcdca8d84ffe3e23057c3b32403482d Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Sat, 11 Sep 2021 15:50:22 +0800
Subject: [PATCH 0247/4878] drm/nouveau/kms/nv50-: fix file release memory leak

[ Upstream commit 0b3d4945cc7e7ea1acd52cb06dfa83bfe265b6d5 ]

When using single_open() for opening, single_release() should be
called, otherwise the 'op' allocated in single_open() will be leaked.

Fixes: 12885ecbfe62 ("drm/nouveau/kms/nvd9-: Add CRC support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210911075023.3969054-1-yangyingliang@huawei.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/dispnv50/crc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/crc.c b/drivers/gpu/drm/nouveau/dispnv50/crc.c
index b8c31b697797e..66f32d965c723 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/crc.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/crc.c
@@ -704,6 +704,7 @@ static const struct file_operations nv50_crc_flip_threshold_fops = {
 	.open = nv50_crc_debugfs_flip_threshold_open,
 	.read = seq_read,
 	.write = nv50_crc_debugfs_flip_threshold_set,
+	.release = single_release,
 };
 
 int nv50_head_crc_late_register(struct nv50_head *head)
-- 
GitLab


From f69556a42043b5444ca712ee889829ba89fdcba8 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Sat, 11 Sep 2021 15:50:23 +0800
Subject: [PATCH 0248/4878] drm/nouveau/debugfs: fix file release memory leak

[ Upstream commit f5a8703a9c418c6fc54eb772712dfe7641e3991c ]

When using single_open() for opening, single_release() should be
called, otherwise the 'op' allocated in single_open() will be leaked.

Fixes: 6e9fc177399f ("drm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfs")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210911075023.3969054-2-yangyingliang@huawei.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index c2bc05eb2e54a..1cbe01048b930 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -207,6 +207,7 @@ static const struct file_operations nouveau_pstate_fops = {
 	.open = nouveau_debugfs_pstate_open,
 	.read = seq_read,
 	.write = nouveau_debugfs_pstate_set,
+	.release = single_release,
 };
 
 static struct drm_info_list nouveau_debugfs_list[] = {
-- 
GitLab


From 5d903a694b087f2aec9f18b0e0dedeeebd66f7af Mon Sep 17 00:00:00 2001
From: Catherine Sullivan <csully@google.com>
Date: Tue, 5 Oct 2021 19:42:19 -0700
Subject: [PATCH 0249/4878] gve: Correct available tx qpl check

[ Upstream commit d03477ee10f4bc35d3573cf1823814378ef2dca2 ]

The qpl_map_size is rounded up to a multiple of sizeof(long), but the
number of qpls doesn't have to be.

Fixes: f5cedc84a30d2 ("gve: Add transmit and receive support")
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Jeroen de Borst <jeroendb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/google/gve/gve.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h
index f5c80229ea966..cfb174624d4ee 100644
--- a/drivers/net/ethernet/google/gve/gve.h
+++ b/drivers/net/ethernet/google/gve/gve.h
@@ -472,7 +472,7 @@ struct gve_queue_page_list *gve_assign_rx_qpl(struct gve_priv *priv)
 				    gve_num_tx_qpls(priv));
 
 	/* we are out of rx qpls */
-	if (id == priv->qpl_cfg.qpl_map_size)
+	if (id == gve_num_tx_qpls(priv) + gve_num_rx_qpls(priv))
 		return NULL;
 
 	set_bit(id, priv->qpl_cfg.qpl_id_map);
-- 
GitLab


From 72c2a68f1d833d2793ee63c626c376a054e2dfe4 Mon Sep 17 00:00:00 2001
From: Tao Liu <xliutaox@google.com>
Date: Tue, 5 Oct 2021 19:42:20 -0700
Subject: [PATCH 0250/4878] gve: Avoid freeing NULL pointer

[ Upstream commit 922aa9bcac92b3ab6a423526a8e785b35a60b441 ]

Prevent possible crashes when cleaning up after unsuccessful
initializations.

Fixes: 893ce44df5658 ("gve: Add basic driver framework for Compute Engine Virtual NIC")
Signed-off-by: Tao Liu <xliutaox@google.com>
Signed-off-by: Catherine Sully <csully@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/google/gve/gve_main.c | 27 ++++++++++++++--------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index 0b714b606ba19..22b2c6a8d08fc 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -71,6 +71,9 @@ static int gve_alloc_counter_array(struct gve_priv *priv)
 
 static void gve_free_counter_array(struct gve_priv *priv)
 {
+	if (!priv->counter_array)
+		return;
+
 	dma_free_coherent(&priv->pdev->dev,
 			  priv->num_event_counters *
 			  sizeof(*priv->counter_array),
@@ -131,6 +134,9 @@ static int gve_alloc_stats_report(struct gve_priv *priv)
 
 static void gve_free_stats_report(struct gve_priv *priv)
 {
+	if (!priv->stats_report)
+		return;
+
 	del_timer_sync(&priv->stats_report_timer);
 	dma_free_coherent(&priv->pdev->dev, priv->stats_report_len,
 			  priv->stats_report, priv->stats_report_bus);
@@ -301,18 +307,19 @@ static void gve_free_notify_blocks(struct gve_priv *priv)
 {
 	int i;
 
-	if (priv->msix_vectors) {
-		/* Free the irqs */
-		for (i = 0; i < priv->num_ntfy_blks; i++) {
-			struct gve_notify_block *block = &priv->ntfy_blocks[i];
-			int msix_idx = i;
+	if (!priv->msix_vectors)
+		return;
 
-			irq_set_affinity_hint(priv->msix_vectors[msix_idx].vector,
-					      NULL);
-			free_irq(priv->msix_vectors[msix_idx].vector, block);
-		}
-		free_irq(priv->msix_vectors[priv->mgmt_msix_idx].vector, priv);
+	/* Free the irqs */
+	for (i = 0; i < priv->num_ntfy_blks; i++) {
+		struct gve_notify_block *block = &priv->ntfy_blocks[i];
+		int msix_idx = i;
+
+		irq_set_affinity_hint(priv->msix_vectors[msix_idx].vector,
+				      NULL);
+		free_irq(priv->msix_vectors[msix_idx].vector, block);
 	}
+	free_irq(priv->msix_vectors[priv->mgmt_msix_idx].vector, priv);
 	dma_free_coherent(&priv->pdev->dev,
 			  priv->num_ntfy_blks * sizeof(*priv->ntfy_blocks),
 			  priv->ntfy_blocks, priv->ntfy_block_bus);
-- 
GitLab


From 9a043022522e7966f87c39fd6248cbf8fc617046 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 5 Oct 2021 14:04:17 -0700
Subject: [PATCH 0251/4878] rtnetlink: fix if_nlmsg_stats_size() under
 estimation

[ Upstream commit d34367991933d28bd7331f67a759be9a8c474014 ]

rtnl_fill_statsinfo() is filling skb with one mandatory if_stats_msg structure.

nlmsg_put(skb, pid, seq, type, sizeof(struct if_stats_msg), flags);

But if_nlmsg_stats_size() never considered the needed storage.

This bug did not show up because alloc_skb(X) allocates skb with
extra tailroom, because of added alignments. This could very well
be changed in the future to have deterministic behavior.

Fixes: 10c9ead9f3c6 ("rtnetlink: add new RTM_GETSTATS message to dump link stats")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Roopa Prabhu <roopa@nvidia.com>
Acked-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/rtnetlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 7266571d5c7e2..27ffa83ffeb3c 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -5257,7 +5257,7 @@ nla_put_failure:
 static size_t if_nlmsg_stats_size(const struct net_device *dev,
 				  u32 filter_mask)
 {
-	size_t size = 0;
+	size_t size = NLMSG_ALIGN(sizeof(struct if_stats_msg));
 
 	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_64, 0))
 		size += nla_total_size_64bit(sizeof(struct rtnl_link_stats64));
-- 
GitLab


From 35f6ddd934e6a2c9eb52a8bdf8fae72529c9a282 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 5 Oct 2021 17:30:30 -0700
Subject: [PATCH 0252/4878] gve: fix gve_get_stats()

[ Upstream commit 2f57d4975fa027eabd35fdf23a49f8222ef3abf2 ]

gve_get_stats() can report wrong numbers if/when u64_stats_fetch_retry()
returns true.

What is needed here is to sample values in temporary variables,
and only use them after each loop is ended.

Fixes: f5cedc84a30d ("gve: Add transmit and receive support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Catherine Sullivan <csully@google.com>
Cc: Sagi Shahar <sagis@google.com>
Cc: Jon Olson <jonolson@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Luigi Rizzo <lrizzo@google.com>
Cc: Jeroen de Borst <jeroendb@google.com>
Cc: Tao Liu <xliutaox@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/google/gve/gve_main.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index 22b2c6a8d08fc..b658bf9b53997 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -30,6 +30,7 @@ static void gve_get_stats(struct net_device *dev, struct rtnl_link_stats64 *s)
 {
 	struct gve_priv *priv = netdev_priv(dev);
 	unsigned int start;
+	u64 packets, bytes;
 	int ring;
 
 	if (priv->rx) {
@@ -37,10 +38,12 @@ static void gve_get_stats(struct net_device *dev, struct rtnl_link_stats64 *s)
 			do {
 				start =
 				  u64_stats_fetch_begin(&priv->rx[ring].statss);
-				s->rx_packets += priv->rx[ring].rpackets;
-				s->rx_bytes += priv->rx[ring].rbytes;
+				packets = priv->rx[ring].rpackets;
+				bytes = priv->rx[ring].rbytes;
 			} while (u64_stats_fetch_retry(&priv->rx[ring].statss,
 						       start));
+			s->rx_packets += packets;
+			s->rx_bytes += bytes;
 		}
 	}
 	if (priv->tx) {
@@ -48,10 +51,12 @@ static void gve_get_stats(struct net_device *dev, struct rtnl_link_stats64 *s)
 			do {
 				start =
 				  u64_stats_fetch_begin(&priv->tx[ring].statss);
-				s->tx_packets += priv->tx[ring].pkt_done;
-				s->tx_bytes += priv->tx[ring].bytes_done;
+				packets = priv->tx[ring].pkt_done;
+				bytes = priv->tx[ring].bytes_done;
 			} while (u64_stats_fetch_retry(&priv->tx[ring].statss,
 						       start));
+			s->tx_packets += packets;
+			s->tx_bytes += bytes;
 		}
 	}
 }
-- 
GitLab


From d3a07ca78acecae90a7c8b1af7a26cbfc59ba2c8 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 5 Oct 2021 18:01:38 -0700
Subject: [PATCH 0253/4878] gve: report 64bit tx_bytes counter from
 gve_handle_report_stats()

[ Upstream commit 17c37d748f2b122a95b6d0524d410302ff89a2b1 ]

Each tx queue maintains a 64bit counter for bytes, there is
no reason to truncate this to 32bit (or this has not been
documented)

Fixes: 24aeb56f2d38 ("gve: Add Gvnic stats AQ command and ethtool show/set-priv-flags.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yangchun Fu <yangchun@google.com>
Cc: Kuo Zhao <kuozhao@google.com>
Cc: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/google/gve/gve_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index b658bf9b53997..fd52218f48846 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -987,9 +987,10 @@ static void gve_handle_reset(struct gve_priv *priv)
 
 void gve_handle_report_stats(struct gve_priv *priv)
 {
-	int idx, stats_idx = 0, tx_bytes;
-	unsigned int start = 0;
 	struct stats *stats = priv->stats_report->stats;
+	int idx, stats_idx = 0;
+	unsigned int start = 0;
+	u64 tx_bytes;
 
 	if (!gve_get_report_stats(priv))
 		return;
-- 
GitLab


From 2dc768a98c9b83f33a2bc98a275bf4b352d946f1 Mon Sep 17 00:00:00 2001
From: Jiri Benc <jbenc@redhat.com>
Date: Tue, 14 Sep 2021 10:54:42 +0200
Subject: [PATCH 0254/4878] i40e: fix endless loop under rtnl

[ Upstream commit 857b6c6f665cca9828396d9743faf37fd09e9ac3 ]

The loop in i40e_get_capabilities can never end. The problem is that
although i40e_aq_discover_capabilities returns with an error if there's
a firmware problem, the returned error is not checked. There is a check for
pf->hw.aq.asq_last_status but that value is set to I40E_AQ_RC_OK on most
firmware problems.

When i40e_aq_discover_capabilities encounters a firmware problem, it will
encounter the same problem on its next invocation. As the result, the loop
becomes endless. We hit this with I40E_ERR_ADMIN_QUEUE_TIMEOUT but looking
at the code, it can happen with a range of other firmware errors.

I don't know what the correct behavior should be: whether the firmware
should be retried a few times, or whether pf->hw.aq.asq_last_status should
be always set to the encountered firmware error (but then it would be
pointless and can be just replaced by the i40e_aq_discover_capabilities
return value). However, the current behavior with an endless loop under the
rtnl mutex(!) is unacceptable and Intel has not submitted a fix, although we
explained the bug to them 7 months ago.

This may not be the best possible fix but it's better than hanging the whole
system on a firmware bug.

Fixes: 56a62fc86895 ("i40e: init code and hardware support")
Tested-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index bc648ce0743c7..0a1eea0846e66 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9662,7 +9662,7 @@ static int i40e_get_capabilities(struct i40e_pf *pf,
 		if (pf->hw.aq.asq_last_status == I40E_AQ_RC_ENOMEM) {
 			/* retry with a larger buffer */
 			buf_len = data_size;
-		} else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK) {
+		} else if (pf->hw.aq.asq_last_status != I40E_AQ_RC_OK || err) {
 			dev_info(&pf->pdev->dev,
 				 "capability discovery failed, err %s aq_err %s\n",
 				 i40e_stat_str(&pf->hw, err),
-- 
GitLab


From 97aeed72af4f83ae51534f0a2473ff52f8d66236 Mon Sep 17 00:00:00 2001
From: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Date: Fri, 24 Sep 2021 11:40:41 +0200
Subject: [PATCH 0255/4878] i40e: Fix freeing of uninitialized misc IRQ vector

[ Upstream commit 2e5a20573a926302b233b0c2e1077f5debc7ab2e ]

When VSI set up failed in i40e_probe() as part of PF switch set up
driver was trying to free misc IRQ vectors in
i40e_clear_interrupt_scheme and produced a kernel Oops:

   Trying to free already-free IRQ 266
   WARNING: CPU: 0 PID: 5 at kernel/irq/manage.c:1731 __free_irq+0x9a/0x300
   Workqueue: events work_for_cpu_fn
   RIP: 0010:__free_irq+0x9a/0x300
   Call Trace:
   ? synchronize_irq+0x3a/0xa0
   free_irq+0x2e/0x60
   i40e_clear_interrupt_scheme+0x53/0x190 [i40e]
   i40e_probe.part.108+0x134b/0x1a40 [i40e]
   ? kmem_cache_alloc+0x158/0x1c0
   ? acpi_ut_update_ref_count.part.1+0x8e/0x345
   ? acpi_ut_update_object_reference+0x15e/0x1e2
   ? strstr+0x21/0x70
   ? irq_get_irq_data+0xa/0x20
   ? mp_check_pin_attr+0x13/0xc0
   ? irq_get_irq_data+0xa/0x20
   ? mp_map_pin_to_irq+0xd3/0x2f0
   ? acpi_register_gsi_ioapic+0x93/0x170
   ? pci_conf1_read+0xa4/0x100
   ? pci_bus_read_config_word+0x49/0x70
   ? do_pci_enable_device+0xcc/0x100
   local_pci_probe+0x41/0x90
   work_for_cpu_fn+0x16/0x20
   process_one_work+0x1a7/0x360
   worker_thread+0x1cf/0x390
   ? create_worker+0x1a0/0x1a0
   kthread+0x112/0x130
   ? kthread_flush_work_fn+0x10/0x10
   ret_from_fork+0x1f/0x40

The problem is that at that point misc IRQ vectors
were not allocated yet and we get a call trace
that driver is trying to free already free IRQ vectors.

Add a check in i40e_clear_interrupt_scheme for __I40E_MISC_IRQ_REQUESTED
PF state before calling i40e_free_misc_vector. This state is set only if
misc IRQ vectors were properly initialized.

Fixes: c17401a1dd21 ("i40e: use separate state bit for miscellaneous IRQ setup")
Reported-by: PJ Waskiewicz <pwaskiewicz@jumptrading.com>
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 0a1eea0846e66..52c2d6fdeb7a0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4839,7 +4839,8 @@ static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
 {
 	int i;
 
-	i40e_free_misc_vector(pf);
+	if (test_bit(__I40E_MISC_IRQ_REQUESTED, pf->state))
+		i40e_free_misc_vector(pf);
 
 	i40e_put_lump(pf->irq_pile, pf->iwarp_base_vector,
 		      I40E_IWARP_IRQ_PILE_ID);
-- 
GitLab


From 985cca1ad11ed9c84b3922c6f05aef2d11e13e76 Mon Sep 17 00:00:00 2001
From: Mike Manning <mvrmanning@gmail.com>
Date: Tue, 5 Oct 2021 14:03:42 +0100
Subject: [PATCH 0256/4878] net: prefer socket bound to interface when not in
 VRF

[ Upstream commit 8d6c414cd2fb74aa6812e9bfec6178f8246c4f3a ]

The commit 6da5b0f027a8 ("net: ensure unbound datagram socket to be
chosen when not in a VRF") modified compute_score() so that a device
match is always made, not just in the case of an l3mdev skb, then
increments the score also for unbound sockets. This ensures that
sockets bound to an l3mdev are never selected when not in a VRF.
But as unbound and bound sockets are now scored equally, this results
in the last opened socket being selected if there are matches in the
default VRF for an unbound socket and a socket bound to a dev that is
not an l3mdev. However, handling prior to this commit was to always
select the bound socket in this case. Reinstate this handling by
incrementing the score only for bound sockets. The required isolation
due to choosing between an unbound socket and a socket bound to an
l3mdev remains in place due to the device match always being made.
The same approach is taken for compute_score() for stream sockets.

Fixes: 6da5b0f027a8 ("net: ensure unbound datagram socket to be chosen when not in a VRF")
Fixes: e78190581aff ("net: ensure unbound stream socket to be chosen when not in a VRF")
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/cf0a8523-b362-1edf-ee78-eef63cbbb428@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/inet_hashtables.c  | 4 +++-
 net/ipv4/udp.c              | 3 ++-
 net/ipv6/inet6_hashtables.c | 2 +-
 net/ipv6/udp.c              | 3 ++-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 45fb450b45227..f3fd5c911ed09 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -242,8 +242,10 @@ static inline int compute_score(struct sock *sk, struct net *net,
 
 		if (!inet_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif))
 			return -1;
+		score =  sk->sk_bound_dev_if ? 2 : 1;
 
-		score = sk->sk_family == PF_INET ? 2 : 1;
+		if (sk->sk_family == PF_INET)
+			score++;
 		if (READ_ONCE(sk->sk_incoming_cpu) == raw_smp_processor_id())
 			score++;
 	}
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index bd7fd9b1f24c8..655f0d8a13d36 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -390,7 +390,8 @@ static int compute_score(struct sock *sk, struct net *net,
 					dif, sdif);
 	if (!dev_match)
 		return -1;
-	score += 4;
+	if (sk->sk_bound_dev_if)
+		score += 4;
 
 	if (READ_ONCE(sk->sk_incoming_cpu) == raw_smp_processor_id())
 		score++;
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 55c290d556059..67c9114835c84 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -106,7 +106,7 @@ static inline int compute_score(struct sock *sk, struct net *net,
 		if (!inet_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif))
 			return -1;
 
-		score = 1;
+		score =  sk->sk_bound_dev_if ? 2 : 1;
 		if (READ_ONCE(sk->sk_incoming_cpu) == raw_smp_processor_id())
 			score++;
 	}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 1943ae5103eb6..bae6b51a9bd46 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -133,7 +133,8 @@ static int compute_score(struct sock *sk, struct net *net,
 	dev_match = udp_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif);
 	if (!dev_match)
 		return -1;
-	score++;
+	if (sk->sk_bound_dev_if)
+		score++;
 
 	if (READ_ONCE(sk->sk_incoming_cpu) == raw_smp_processor_id())
 		score++;
-- 
GitLab


From 87990a60b45ff820e6ffb10d2f779892f400f7b5 Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Thu, 30 Sep 2021 13:44:54 +1000
Subject: [PATCH 0257/4878] powerpc/iommu: Report the correct most efficient
 DMA mask for PCI devices

[ Upstream commit 23c216b335d1fbd716076e8263b54a714ea3cf0e ]

According to dma-api.rst, the dma_get_required_mask() helper should return
"the mask that the platform requires to operate efficiently". Which in
the case of PPC64 means the bypass mask and not a mask from an IOMMU table
which is shorter and slower to use due to map/unmap operations (especially
expensive on "pseries").

However the existing implementation ignores the possibility of bypassing
and returns the IOMMU table mask on the pseries platform which makes some
drivers (mpt3sas is one example) choose 32bit DMA even though bypass is
supported. The powernv platform sort of handles it by having a bigger
default window with a mask >=40 but it only works as drivers choose
63/64bit if the required mask is >32 which is rather pointless.

This reintroduces the bypass capability check to let drivers make
a better choice of the DMA mask.

Fixes: f1565c24b596 ("powerpc: use the generic dma_ops_bypass mode")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210930034454.95794-1-aik@ozlabs.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/dma-iommu.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index a1c7441940184..9ac0651795cf6 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -117,6 +117,15 @@ u64 dma_iommu_get_required_mask(struct device *dev)
 	struct iommu_table *tbl = get_iommu_table_base(dev);
 	u64 mask;
 
+	if (dev_is_pci(dev)) {
+		u64 bypass_mask = dma_direct_get_required_mask(dev);
+
+		if (dma_iommu_dma_supported(dev, bypass_mask)) {
+			dev_info(dev, "%s: returning bypass mask 0x%llx\n", __func__, bypass_mask);
+			return bypass_mask;
+		}
+	}
+
 	if (!tbl)
 		return 0;
 
-- 
GitLab


From f86de018fd7a24ee07372d55ffa7824f0c674a95 Mon Sep 17 00:00:00 2001
From: Jamie Iles <quic_jiles@quicinc.com>
Date: Wed, 22 Sep 2021 17:57:18 +0100
Subject: [PATCH 0258/4878] i2c: acpi: fix resource leak in reconfiguration
 device addition

[ Upstream commit 6558b646ce1c2a872fe1c2c7cb116f05a2c1950f ]

acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a
reference on the adapter which is never released which will result in a
reference count leak and render the adapter unremovable.  Make sure to
put the adapter after creating the client in the same manner that we do
for OF.

Fixes: 525e6fabeae2 ("i2c / ACPI: add support for ACPI reconfigure notifications")
Signed-off-by: Jamie Iles <quic_jiles@quicinc.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[wsa: fixed title]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/i2c-core-acpi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 37c510d9347a7..4b136d8710743 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -426,6 +426,7 @@ static int i2c_acpi_notify(struct notifier_block *nb, unsigned long value,
 			break;
 
 		i2c_acpi_register_device(adapter, adev, &info);
+		put_device(&adapter->dev);
 		break;
 	case ACPI_RECONFIG_DEVICE_REMOVE:
 		if (!acpi_device_enumerated(adev))
-- 
GitLab


From de834e12b96d90d7edd1374c9b12a62baa8cdb9b Mon Sep 17 00:00:00 2001
From: Kewei Xu <kewei.xu@mediatek.com>
Date: Fri, 17 Sep 2021 18:14:14 +0800
Subject: [PATCH 0259/4878] i2c: mediatek: Add OFFSET_EXT_CONF setting back

[ Upstream commit 3bce7703c7ba648bd9e174dc1413f422b7998833 ]

In the commit be5ce0e97cc7 ("i2c: mediatek: Add i2c ac-timing adjust
support"), we miss setting OFFSET_EXT_CONF register if
i2c->dev_comp->timing_adjust is false, now add it back.

Fixes: be5ce0e97cc7 ("i2c: mediatek: Add i2c ac-timing adjust support")
Signed-off-by: Kewei Xu <kewei.xu@mediatek.com>
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-mt65xx.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 1a5f1ccd1d2f7..0af2784cbd0d9 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -41,6 +41,8 @@
 #define I2C_HANDSHAKE_RST		0x0020
 #define I2C_FIFO_ADDR_CLR		0x0001
 #define I2C_DELAY_LEN			0x0002
+#define I2C_ST_START_CON		0x8001
+#define I2C_FS_START_CON		0x1800
 #define I2C_TIME_CLR_VALUE		0x0000
 #define I2C_TIME_DEFAULT_VALUE		0x0003
 #define I2C_WRRD_TRANAC_VALUE		0x0002
@@ -479,6 +481,7 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c)
 {
 	u16 control_reg;
 	u16 intr_stat_reg;
+	u16 ext_conf_val;
 
 	mtk_i2c_writew(i2c, I2C_CHN_CLR_FLAG, OFFSET_START);
 	intr_stat_reg = mtk_i2c_readw(i2c, OFFSET_INTR_STAT);
@@ -517,8 +520,13 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c)
 	if (i2c->dev_comp->ltiming_adjust)
 		mtk_i2c_writew(i2c, i2c->ltiming_reg, OFFSET_LTIMING);
 
+	if (i2c->speed_hz <= I2C_MAX_STANDARD_MODE_FREQ)
+		ext_conf_val = I2C_ST_START_CON;
+	else
+		ext_conf_val = I2C_FS_START_CON;
+
 	if (i2c->dev_comp->timing_adjust) {
-		mtk_i2c_writew(i2c, i2c->ac_timing.ext, OFFSET_EXT_CONF);
+		ext_conf_val = i2c->ac_timing.ext;
 		mtk_i2c_writew(i2c, i2c->ac_timing.inter_clk_div,
 			       OFFSET_CLOCK_DIV);
 		mtk_i2c_writew(i2c, I2C_SCL_MIS_COMP_VALUE,
@@ -543,6 +551,7 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c)
 				       OFFSET_HS_STA_STO_AC_TIMING);
 		}
 	}
+	mtk_i2c_writew(i2c, ext_conf_val, OFFSET_EXT_CONF);
 
 	/* If use i2c pin from PMIC mt6397 side, need set PATH_DIR first */
 	if (i2c->have_pmic)
-- 
GitLab


From 2c152d9da8fed3cade515eb5249fab805c87d831 Mon Sep 17 00:00:00 2001
From: Tong Tiangen <tongtiangen@huawei.com>
Date: Wed, 1 Sep 2021 02:46:21 +0000
Subject: [PATCH 0260/4878] riscv/vdso: make arch_setup_additional_pages wait
 for mmap_sem for write killable

[ Upstream commit 8bb0ab3ae7a4dbe6cf32deb830cf2bdbf5736867 ]

riscv architectures relying on mmap_sem for write in their
arch_setup_additional_pages. If the waiting task gets killed by the oom
killer it would block oom_reaper from asynchronous address space reclaim
and reduce the chances of timely OOM resolving.  Wait for the lock in
the killable mode and return with EINTR if the task got killed while
waiting.

Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Fixes: 76d2a0493a17 ("RISC-V: Init and Halt Code")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/riscv/kernel/vdso.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/vdso.c b/arch/riscv/kernel/vdso.c
index 3f1d35e7c98a6..73d45931a053a 100644
--- a/arch/riscv/kernel/vdso.c
+++ b/arch/riscv/kernel/vdso.c
@@ -65,7 +65,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 
 	vdso_len = (vdso_pages + 1) << PAGE_SHIFT;
 
-	mmap_write_lock(mm);
+	if (mmap_write_lock_killable(mm))
+		return -EINTR;
+
 	vdso_base = get_unmapped_area(NULL, 0, vdso_len, 0, 0);
 	if (IS_ERR_VALUE(vdso_base)) {
 		ret = vdso_base;
-- 
GitLab


From 29fdb11ca88d3c490a3d56f0dc77eb9444d086be Mon Sep 17 00:00:00 2001
From: Tiezhu Yang <yangtiezhu@loongson.cn>
Date: Mon, 27 Sep 2021 15:06:14 +0800
Subject: [PATCH 0261/4878] bpf, s390: Fix potential memory leak about jit_data

[ Upstream commit 686cb8b9f6b46787f035afe8fbd132a74e6b1bdd ]

Make sure to free jit_data through kfree() in the error path.

Fixes: 1c8f9b91c456 ("bpf: s390: add JIT support for multi-function programs")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/net/bpf_jit_comp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 8d9047d2d1e11..cd0cbdafedbd2 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -1775,7 +1775,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
 	jit.addrs = kvcalloc(fp->len + 1, sizeof(*jit.addrs), GFP_KERNEL);
 	if (jit.addrs == NULL) {
 		fp = orig_fp;
-		goto out;
+		goto free_addrs;
 	}
 	/*
 	 * Three initial passes:
-- 
GitLab


From a4037dded56bb82eb4fbb37b5bdbf18a55e2bb96 Mon Sep 17 00:00:00 2001
From: Palmer Dabbelt <palmerdabbelt@google.com>
Date: Sat, 2 Oct 2021 17:21:20 -0700
Subject: [PATCH 0262/4878] RISC-V: Include clone3() on rv32

[ Upstream commit 59a4e0d5511ba61353ea9a4efdb1b86c23ecf134 ]

As far as I can tell this should be enabled on rv32 as well, I'm not
sure why it's rv64-only.  checksyscalls is complaining about our lack of
clone3() on rv32.

Fixes: 56ac5e213933 ("riscv: enable sys_clone3 syscall for rv64")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/riscv/include/uapi/asm/unistd.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h
index 4b989ae15d59f..8062996c2dfd0 100644
--- a/arch/riscv/include/uapi/asm/unistd.h
+++ b/arch/riscv/include/uapi/asm/unistd.h
@@ -18,9 +18,10 @@
 #ifdef __LP64__
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SET_GET_RLIMIT
-#define __ARCH_WANT_SYS_CLONE3
 #endif /* __LP64__ */
 
+#define __ARCH_WANT_SYS_CLONE3
+
 #include <asm-generic/unistd.h>
 
 /*
-- 
GitLab


From 18a2a2cafcf93ece4bde3a4f0b76324a7bfc0872 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Wed, 6 Oct 2021 01:55:23 +0530
Subject: [PATCH 0263/4878] powerpc/bpf: Fix BPF_SUB when imm == 0x80000000

[ Upstream commit 5855c4c1f415ca3ba1046e77c0b3d3dfc96c9025 ]

We aren't handling subtraction involving an immediate value of
0x80000000 properly. Fix the same.

Fixes: 156d0e290e969c ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Fold in fix from Naveen to use imm <= 32768]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/fc4b1276eb10761fd7ce0814c8dd089da2815251.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/net/bpf_jit_comp64.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 658ca2bab13cc..0752967f351bb 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -347,18 +347,25 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
 			EMIT(PPC_RAW_SUB(dst_reg, dst_reg, src_reg));
 			goto bpf_alu32_trunc;
 		case BPF_ALU | BPF_ADD | BPF_K: /* (u32) dst += (u32) imm */
-		case BPF_ALU | BPF_SUB | BPF_K: /* (u32) dst -= (u32) imm */
 		case BPF_ALU64 | BPF_ADD | BPF_K: /* dst += imm */
+			if (!imm) {
+				goto bpf_alu32_trunc;
+			} else if (imm >= -32768 && imm < 32768) {
+				EMIT(PPC_RAW_ADDI(dst_reg, dst_reg, IMM_L(imm)));
+			} else {
+				PPC_LI32(b2p[TMP_REG_1], imm);
+				EMIT(PPC_RAW_ADD(dst_reg, dst_reg, b2p[TMP_REG_1]));
+			}
+			goto bpf_alu32_trunc;
+		case BPF_ALU | BPF_SUB | BPF_K: /* (u32) dst -= (u32) imm */
 		case BPF_ALU64 | BPF_SUB | BPF_K: /* dst -= imm */
-			if (BPF_OP(code) == BPF_SUB)
-				imm = -imm;
-			if (imm) {
-				if (imm >= -32768 && imm < 32768)
-					EMIT(PPC_RAW_ADDI(dst_reg, dst_reg, IMM_L(imm)));
-				else {
-					PPC_LI32(b2p[TMP_REG_1], imm);
-					EMIT(PPC_RAW_ADD(dst_reg, dst_reg, b2p[TMP_REG_1]));
-				}
+			if (!imm) {
+				goto bpf_alu32_trunc;
+			} else if (imm > -32768 && imm <= 32768) {
+				EMIT(PPC_RAW_ADDI(dst_reg, dst_reg, IMM_L(-imm)));
+			} else {
+				PPC_LI32(b2p[TMP_REG_1], imm);
+				EMIT(PPC_RAW_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]));
 			}
 			goto bpf_alu32_trunc;
 		case BPF_ALU | BPF_MUL | BPF_X: /* (u32) dst *= (u32) src */
-- 
GitLab


From 411b38fe68ba20a8bbe724b0939762c3f16e16ca Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Tue, 5 Oct 2021 00:56:38 +1000
Subject: [PATCH 0264/4878] powerpc/64s: fix program check interrupt emergency
 stack path

[ Upstream commit 3e607dc4df180b72a38e75030cb0f94d12808712 ]

Emergency stack path was jumping into a 3: label inside the
__GEN_COMMON_BODY macro for the normal path after it had finished,
rather than jumping over it. By a small miracle this is the correct
place to build up a new interrupt frame with the existing stack
pointer, so things basically worked okay with an added weird looking
700 trap frame on top (which had the wrong ->nip so it didn't decode
bug messages either).

Fix this by avoiding using numeric labels when jumping over non-trivial
macros.

Before:

 LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV
 Modules linked in:
 CPU: 0 PID: 88 Comm: sh Not tainted 5.15.0-rc2-00034-ge057cdade6e5 #2637
 NIP:  7265677368657265 LR: c00000000006c0c8 CTR: c0000000000097f0
 REGS: c0000000fffb3a50 TRAP: 0700   Not tainted
 MSR:  9000000000021031 <SF,HV,ME,IR,DR,LE>  CR: 00000700  XER: 20040000
 CFAR: c0000000000098b0 IRQMASK: 0
 GPR00: c00000000006c964 c0000000fffb3cf0 c000000001513800 0000000000000000
 GPR04: 0000000048ab0778 0000000042000000 0000000000000000 0000000000001299
 GPR08: 000001e447c718ec 0000000022424282 0000000000002710 c00000000006bee8
 GPR12: 9000000000009033 c0000000016b0000 00000000000000b0 0000000000000001
 GPR16: 0000000000000000 0000000000000002 0000000000000000 0000000000000ff8
 GPR20: 0000000000001fff 0000000000000007 0000000000000080 00007fff89d90158
 GPR24: 0000000002000000 0000000002000000 0000000000000255 0000000000000300
 GPR28: c000000001270000 0000000042000000 0000000048ab0778 c000000080647e80
 NIP [7265677368657265] 0x7265677368657265
 LR [c00000000006c0c8] ___do_page_fault+0x3f8/0xb10
 Call Trace:
 [c0000000fffb3cf0] [c00000000000bdac] soft_nmi_common+0x13c/0x1d0 (unreliable)
 --- interrupt: 700 at decrementer_common_virt+0xb8/0x230
 NIP:  c0000000000098b8 LR: c00000000006c0c8 CTR: c0000000000097f0
 REGS: c0000000fffb3d60 TRAP: 0700   Not tainted
 MSR:  9000000000021031 <SF,HV,ME,IR,DR,LE>  CR: 22424282  XER: 20040000
 CFAR: c0000000000098b0 IRQMASK: 0
 GPR00: c00000000006c964 0000000000002400 c000000001513800 0000000000000000
 GPR04: 0000000048ab0778 0000000042000000 0000000000000000 0000000000001299
 GPR08: 000001e447c718ec 0000000022424282 0000000000002710 c00000000006bee8
 GPR12: 9000000000009033 c0000000016b0000 00000000000000b0 0000000000000001
 GPR16: 0000000000000000 0000000000000002 0000000000000000 0000000000000ff8
 GPR20: 0000000000001fff 0000000000000007 0000000000000080 00007fff89d90158
 GPR24: 0000000002000000 0000000002000000 0000000000000255 0000000000000300
 GPR28: c000000001270000 0000000042000000 0000000048ab0778 c000000080647e80
 NIP [c0000000000098b8] decrementer_common_virt+0xb8/0x230
 LR [c00000000006c0c8] ___do_page_fault+0x3f8/0xb10
 --- interrupt: 700
 Instruction dump:
 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
 ---[ end trace 6d28218e0cc3c949 ]---

After:

 ------------[ cut here ]------------
 kernel BUG at arch/powerpc/kernel/exceptions-64s.S:491!
 Oops: Exception in kernel mode, sig: 5 [#1]
 LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV
 Modules linked in:
 CPU: 0 PID: 88 Comm: login Not tainted 5.15.0-rc2-00034-ge057cdade6e5-dirty #2638
 NIP:  c0000000000098b8 LR: c00000000006bf04 CTR: c0000000000097f0
 REGS: c0000000fffb3d60 TRAP: 0700   Not tainted
 MSR:  9000000000021031 <SF,HV,ME,IR,DR,LE>  CR: 24482227  XER: 00040000
 CFAR: c0000000000098b0 IRQMASK: 0
 GPR00: c00000000006bf04 0000000000002400 c000000001513800 c000000001271868
 GPR04: 00000000100f0d29 0000000042000000 0000000000000007 0000000000000009
 GPR08: 00000000100f0d29 0000000024482227 0000000000002710 c000000000181b3c
 GPR12: 9000000000009033 c0000000016b0000 00000000100f0d29 c000000005b22f00
 GPR16: 00000000ffff0000 0000000000000001 0000000000000009 00000000100eed90
 GPR20: 00000000100eed90 0000000010000000 000000001000a49c 00000000100f1430
 GPR24: c000000001271868 0000000002000000 0000000000000215 0000000000000300
 GPR28: c000000001271800 0000000042000000 00000000100f0d29 c000000080647860
 NIP [c0000000000098b8] decrementer_common_virt+0xb8/0x230
 LR [c00000000006bf04] ___do_page_fault+0x234/0xb10
 Call Trace:
 Instruction dump:
 4182000c 39400001 48000008 894d0932 714a0001 39400008 408225fc 718a4000
 7c2a0b78 3821fcf0 41c20008 e82d0910 <0981fcf0> f92101a0 f9610170 f9810178
 ---[ end trace a5dbd1f5ea4ccc51 ]---

Fixes: 0a882e28468f4 ("powerpc/64s/exception: remove bad stack branch")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211004145642.1331214-2-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/exceptions-64s.S | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 9d3b468bd2d7a..10df278dc3fbe 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1715,27 +1715,30 @@ EXC_COMMON_BEGIN(program_check_common)
 	 */
 
 	andi.	r10,r12,MSR_PR
-	bne	2f			/* If userspace, go normal path */
+	bne	.Lnormal_stack		/* If userspace, go normal path */
 
 	andis.	r10,r12,(SRR1_PROGTM)@h
-	bne	1f			/* If TM, emergency		*/
+	bne	.Lemergency_stack	/* If TM, emergency		*/
 
 	cmpdi	r1,-INT_FRAME_SIZE	/* check if r1 is in userspace	*/
-	blt	2f			/* normal path if not		*/
+	blt	.Lnormal_stack		/* normal path if not		*/
 
 	/* Use the emergency stack					*/
-1:	andi.	r10,r12,MSR_PR		/* Set CR0 correctly for label	*/
+.Lemergency_stack:
+	andi.	r10,r12,MSR_PR		/* Set CR0 correctly for label	*/
 					/* 3 in EXCEPTION_PROLOG_COMMON	*/
 	mr	r10,r1			/* Save r1			*/
 	ld	r1,PACAEMERGSP(r13)	/* Use emergency stack		*/
 	subi	r1,r1,INT_FRAME_SIZE	/* alloc stack frame		*/
 	__ISTACK(program_check)=0
 	__GEN_COMMON_BODY program_check
-	b 3f
-2:
+	b .Ldo_program_check
+
+.Lnormal_stack:
 	__ISTACK(program_check)=1
 	__GEN_COMMON_BODY program_check
-3:
+
+.Ldo_program_check:
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	program_check_exception
 	REST_NVGPRS(r1) /* instruction emulation may change GPRs */
-- 
GitLab


From f73ca4961d51304a8f1418a6b6b9d9c77ea95041 Mon Sep 17 00:00:00 2001
From: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Date: Mon, 20 Sep 2021 22:03:26 +0530
Subject: [PATCH 0265/4878] pseries/eeh: Fix the kdump kernel crash during
 eeh_pseries_init

[ Upstream commit eb8257a12192f43ffd41bd90932c39dade958042 ]

On pseries LPAR when an empty slot is assigned to partition OR in single
LPAR mode, kdump kernel crashes during issuing PHB reset.

In the kdump scenario, we traverse all PHBs and issue reset using the
pe_config_addr of the first child device present under each PHB. However
the code assumes that none of the PHB slots can be empty and uses
list_first_entry() to get the first child device under the PHB. Since
list_first_entry() expects the list to be non-empty, it returns an
invalid pci_dn entry and ends up accessing NULL phb pointer under
pci_dn->phb causing kdump kernel crash.

This patch fixes the below kdump kernel crash by skipping empty slots:

  audit: initializing netlink subsys (disabled)
  thermal_sys: Registered thermal governor 'fair_share'
  thermal_sys: Registered thermal governor 'step_wise'
  cpuidle: using governor menu
  pstore: Registered nvram as persistent store backend
  Issue PHB reset ...
  audit: type=2000 audit(1631267818.000:1): state=initialized audit_enabled=0 res=1
  BUG: Kernel NULL pointer dereference on read at 0x00000268
  Faulting instruction address: 0xc000000008101fb0
  Oops: Kernel access of bad area, sig: 7 [#1]
  LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
  Modules linked in:
  CPU: 7 PID: 1 Comm: swapper/7 Not tainted 5.14.0 #1
  NIP:  c000000008101fb0 LR: c000000009284ccc CTR: c000000008029d70
  REGS: c00000001161b840 TRAP: 0300   Not tainted  (5.14.0)
  MSR:  8000000002009033 <SF,VEC,EE,ME,IR,DR,RI,LE>  CR: 28000224  XER: 20040002
  CFAR: c000000008101f0c DAR: 0000000000000268 DSISR: 00080000 IRQMASK: 0
  ...
  NIP pseries_eeh_get_pe_config_addr+0x100/0x1b0
  LR  __machine_initcall_pseries_eeh_pseries_init+0x2cc/0x350
  Call Trace:
    0xc00000001161bb80 (unreliable)
    __machine_initcall_pseries_eeh_pseries_init+0x2cc/0x350
    do_one_initcall+0x60/0x2d0
    kernel_init_freeable+0x350/0x3f8
    kernel_init+0x3c/0x17c
    ret_from_kernel_thread+0x5c/0x64

Fixes: 5a090f7c363fd ("powerpc/pseries: PCIE PHB reset")
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
[mpe: Tweak wording and trim oops]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/163215558252.413351.8600189949820258982.stgit@jupiter
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/pseries/eeh_pseries.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index cf024fa37bda0..7ed38ebd0c7b6 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -868,6 +868,10 @@ static int __init eeh_pseries_init(void)
 	if (is_kdump_kernel() || reset_devices) {
 		pr_info("Issue PHB reset ...\n");
 		list_for_each_entry(phb, &hose_list, list_node) {
+			// Skip if the slot is empty
+			if (list_empty(&PCI_DN(phb->dn)->child_list))
+				continue;
+
 			pdn = list_first_entry(&PCI_DN(phb->dn)->child_list, struct pci_dn, list);
 			config_addr = pseries_eeh_get_pe_config_addr(pdn);
 
-- 
GitLab


From d7c36115fb8177e58a8aa99e79e7e076f6f07395 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Tue, 3 Aug 2021 13:35:24 +0200
Subject: [PATCH 0266/4878] x86/platform/olpc: Correct ifdef symbol to intended
 CONFIG_OLPC_XO15_SCI

commit 4758fd801f919b8b9acad78d2e49a195ec2be46b upstream.

The refactoring in the commit in Fixes introduced an ifdef
CONFIG_OLPC_XO1_5_SCI, however the config symbol is actually called
"CONFIG_OLPC_XO15_SCI".

Fortunately, ./scripts/checkkconfigsymbols.py warns:

OLPC_XO1_5_SCI
Referencing files: arch/x86/platform/olpc/olpc.c

Correct this ifdef condition to the intended config symbol.

Fixes: ec9964b48033 ("Platform: OLPC: Move EC-specific functionality out from x86")
Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20210803113531.30720-3-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/platform/olpc/olpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/olpc/olpc.c b/arch/x86/platform/olpc/olpc.c
index ee2beda590d0d..1d4a00e767ece 100644
--- a/arch/x86/platform/olpc/olpc.c
+++ b/arch/x86/platform/olpc/olpc.c
@@ -274,7 +274,7 @@ static struct olpc_ec_driver ec_xo1_driver = {
 
 static struct olpc_ec_driver ec_xo1_5_driver = {
 	.ec_cmd = olpc_xo1_ec_cmd,
-#ifdef CONFIG_OLPC_XO1_5_SCI
+#ifdef CONFIG_OLPC_XO15_SCI
 	/*
 	 * XO-1.5 EC wakeups are available when olpc-xo15-sci driver is
 	 * compiled in
-- 
GitLab


From df121cf550032175454e325d816af27b89cf0447 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Tue, 3 Aug 2021 13:35:25 +0200
Subject: [PATCH 0267/4878] x86/Kconfig: Correct reference to MWINCHIP3D

commit 225bac2dc5d192e55f2c50123ee539b1edf8a411 upstream.

Commit in Fixes intended to exclude the Winchip series and referred to
CONFIG_WINCHIP3D, but the config symbol is called CONFIG_MWINCHIP3D.

Hence, scripts/checkkconfigsymbols.py warns:

WINCHIP3D
Referencing files: arch/x86/Kconfig

Correct the reference to the intended config symbol.

Fixes: 69b8d3fcabdc ("x86/Kconfig: Exclude i586-class CPUs lacking PAE support from the HIGHMEM64G Kconfig group")
Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20210803113531.30720-4-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f3c8a8110f60c..4201d0cf5f835 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1415,7 +1415,7 @@ config HIGHMEM4G
 
 config HIGHMEM64G
 	bool "64GB"
-	depends on !M486SX && !M486 && !M586 && !M586TSC && !M586MMX && !MGEODE_LX && !MGEODEGX1 && !MCYRIXIII && !MELAN && !MWINCHIPC6 && !WINCHIP3D && !MK6
+	depends on !M486SX && !M486 && !M586 && !M586TSC && !M586MMX && !MGEODE_LX && !MGEODEGX1 && !MCYRIXIII && !MELAN && !MWINCHIPC6 && !MWINCHIP3D && !MK6
 	select X86_PAE
 	help
 	  Select this if you have a 32-bit processor and more than 4
-- 
GitLab


From 5d637bc6f98ae7f980f4773608f997f222176ef5 Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Thu, 30 Sep 2021 23:42:01 -0500
Subject: [PATCH 0268/4878] x86/sev: Return an error on a returned non-zero
 SW_EXITINFO1[31:0]

commit 06f2ac3d4219bbbfd93d79e01966a42053084f11 upstream.

After returning from a VMGEXIT NAE event, SW_EXITINFO1[31:0] is checked
for a value of 1, which indicates an error and that SW_EXITINFO2
contains exception information. However, future versions of the GHCB
specification may define new values for SW_EXITINFO1[31:0], so really
any non-zero value should be treated as an error.

Fixes: 597cfe48212a ("x86/boot/compressed/64: Setup a GHCB-based VC Exception handler")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # 5.10+
Link: https://lkml.kernel.org/r/efc772af831e9e7f517f0439b13b41f56bad8784.1633063321.git.thomas.lendacky@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/sev-es-shared.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/sev-es-shared.c b/arch/x86/kernel/sev-es-shared.c
index ecb20b17b7df6..82db4014deb21 100644
--- a/arch/x86/kernel/sev-es-shared.c
+++ b/arch/x86/kernel/sev-es-shared.c
@@ -130,6 +130,8 @@ static enum es_result sev_es_ghcb_hv_call(struct ghcb *ghcb,
 		} else {
 			ret = ES_VMM_ERROR;
 		}
+	} else if (ghcb->save.sw_exit_info_1 & 0xffffffff) {
+		ret = ES_VMM_ERROR;
 	} else {
 		ret = ES_OK;
 	}
-- 
GitLab


From 6bfe1f6fc8769c728d4de87aa8e30ec36e706a9d Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Tue, 3 Aug 2021 13:35:23 +0200
Subject: [PATCH 0269/4878] x86/entry: Correct reference to intended
 CONFIG_64_BIT

commit 2c861f2b859385e9eaa6e464a8a7435b5a6bf564 upstream.

Commit in Fixes adds a condition with IS_ENABLED(CONFIG_64_BIT),
but the intended config item is called CONFIG_64BIT, as defined in
arch/x86/Kconfig.

Fortunately, scripts/checkkconfigsymbols.py warns:

64_BIT
Referencing files: arch/x86/include/asm/entry-common.h

Correct the reference to the intended config symbol.

Fixes: 662a0221893a ("x86/entry: Fix AC assertion")
Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20210803113531.30720-2-lukas.bulwahn@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/entry-common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/entry-common.h b/arch/x86/include/asm/entry-common.h
index 6fe54b2813c13..4a382fb6a9ef8 100644
--- a/arch/x86/include/asm/entry-common.h
+++ b/arch/x86/include/asm/entry-common.h
@@ -24,7 +24,7 @@ static __always_inline void arch_check_user_regs(struct pt_regs *regs)
 		 * For !SMAP hardware we patch out CLAC on entry.
 		 */
 		if (boot_cpu_has(X86_FEATURE_SMAP) ||
-		    (IS_ENABLED(CONFIG_64_BIT) && boot_cpu_has(X86_FEATURE_XENPV)))
+		    (IS_ENABLED(CONFIG_64BIT) && boot_cpu_has(X86_FEATURE_XENPV)))
 			mask |= X86_EFLAGS_AC;
 
 		WARN_ON_ONCE(flags & mask);
-- 
GitLab


From f2447f6587b8ffe42ba04d14ce67d429a1163e5e Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Mon, 4 Oct 2021 00:34:23 +0200
Subject: [PATCH 0270/4878] x86/entry: Clear X86_FEATURE_SMAP when
 CONFIG_X86_SMAP=n

commit 3958b9c34c2729597e182cc606cc43942fd19f7c upstream.

Commit

  3c73b81a9164 ("x86/entry, selftests: Further improve user entry sanity checks")

added a warning if AC is set when in the kernel.

Commit

  662a0221893a3d ("x86/entry: Fix AC assertion")

changed the warning to only fire if the CPU supports SMAP.

However, the warning can still trigger on a machine that supports SMAP
but where it's disabled in the kernel config and when running the
syscall_nt selftest, for example:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 49 at irqentry_enter_from_user_mode
  CPU: 0 PID: 49 Comm: init Tainted: G                T 5.15.0-rc4+ #98 e6202628ee053b4f310759978284bd8bb0ce6905
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
  RIP: 0010:irqentry_enter_from_user_mode
  ...
  Call Trace:
   ? irqentry_enter
   ? exc_general_protection
   ? asm_exc_general_protection
   ? asm_exc_general_protectio

IS_ENABLED(CONFIG_X86_SMAP) could be added to the warning condition, but
even this would not be enough in case SMAP is disabled at boot time with
the "nosmap" parameter.

To be consistent with "nosmap" behaviour, clear X86_FEATURE_SMAP when
!CONFIG_X86_SMAP.

Found using entry-fuzz + satrandconfig.

 [ bp: Massage commit message. ]

Fixes: 3c73b81a9164 ("x86/entry, selftests: Further improve user entry sanity checks")
Fixes: 662a0221893a ("x86/entry: Fix AC assertion")
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20211003223423.8666-1-vegard.nossum@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 25148ebd36341..ec21f5e9ffd05 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -320,6 +320,7 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
 #ifdef CONFIG_X86_SMAP
 		cr4_set_bits(X86_CR4_SMAP);
 #else
+		clear_cpu_cap(c, X86_FEATURE_SMAP);
 		cr4_clear_bits(X86_CR4_SMAP);
 #endif
 	}
-- 
GitLab


From 825c00c2ee143eff1d869605c318270686f689e0 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 30 Sep 2021 19:21:39 +0200
Subject: [PATCH 0271/4878] x86/hpet: Use another crystalball to evaluate HPET
 usability

commit 6e3cd95234dc1eda488f4f487c281bac8fef4d9b upstream.

On recent Intel systems the HPET stops working when the system reaches PC10
idle state.

The approach of adding PCI ids to the early quirks to disable HPET on
these systems is a whack a mole game which makes no sense.

Check for PC10 instead and force disable HPET if supported. The check is
overbroad as it does not take ACPI, intel_idle enablement and command
line parameters into account. That's fine as long as there is at least
PMTIMER available to calibrate the TSC frequency. The decision can be
overruled by adding "hpet=force" on the kernel command line.

Remove the related early PCI quirks for affected Ice Cake and Coffin Lake
systems as they are not longer required. That should also cover all
other systems, i.e. Tiger Rag and newer generations, which are most
likely affected by this as well.

Fixes: Yet another hardware trainwreck
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Cc: stable@vger.kernel.org
Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/early-quirks.c |  6 ---
 arch/x86/kernel/hpet.c         | 81 ++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index a4b5af03dcc1b..0c6d1dc59fa21 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -711,12 +711,6 @@ static struct chipset early_qrk[] __initdata = {
 	 */
 	{ PCI_VENDOR_ID_INTEL, 0x0f00,
 		PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
-	{ PCI_VENDOR_ID_INTEL, 0x3e20,
-		PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
-	{ PCI_VENDOR_ID_INTEL, 0x3ec4,
-		PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
-	{ PCI_VENDOR_ID_INTEL, 0x8a12,
-		PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
 	{ PCI_VENDOR_ID_BROADCOM, 0x4331,
 	  PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
 	{}
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 7a50f0b62a709..4ab7a9757e521 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -9,6 +9,7 @@
 
 #include <asm/hpet.h>
 #include <asm/time.h>
+#include <asm/mwait.h>
 
 #undef  pr_fmt
 #define pr_fmt(fmt) "hpet: " fmt
@@ -806,6 +807,83 @@ static bool __init hpet_counting(void)
 	return false;
 }
 
+static bool __init mwait_pc10_supported(void)
+{
+	unsigned int eax, ebx, ecx, mwait_substates;
+
+	if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+		return false;
+
+	if (!cpu_feature_enabled(X86_FEATURE_MWAIT))
+		return false;
+
+	if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF)
+		return false;
+
+	cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &mwait_substates);
+
+	return (ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) &&
+	       (ecx & CPUID5_ECX_INTERRUPT_BREAK) &&
+	       (mwait_substates & (0xF << 28));
+}
+
+/*
+ * Check whether the system supports PC10. If so force disable HPET as that
+ * stops counting in PC10. This check is overbroad as it does not take any
+ * of the following into account:
+ *
+ *	- ACPI tables
+ *	- Enablement of intel_idle
+ *	- Command line arguments which limit intel_idle C-state support
+ *
+ * That's perfectly fine. HPET is a piece of hardware designed by committee
+ * and the only reasons why it is still in use on modern systems is the
+ * fact that it is impossible to reliably query TSC and CPU frequency via
+ * CPUID or firmware.
+ *
+ * If HPET is functional it is useful for calibrating TSC, but this can be
+ * done via PMTIMER as well which seems to be the last remaining timer on
+ * X86/INTEL platforms that has not been completely wreckaged by feature
+ * creep.
+ *
+ * In theory HPET support should be removed altogether, but there are older
+ * systems out there which depend on it because TSC and APIC timer are
+ * dysfunctional in deeper C-states.
+ *
+ * It's only 20 years now that hardware people have been asked to provide
+ * reliable and discoverable facilities which can be used for timekeeping
+ * and per CPU timer interrupts.
+ *
+ * The probability that this problem is going to be solved in the
+ * forseeable future is close to zero, so the kernel has to be cluttered
+ * with heuristics to keep up with the ever growing amount of hardware and
+ * firmware trainwrecks. Hopefully some day hardware people will understand
+ * that the approach of "This can be fixed in software" is not sustainable.
+ * Hope dies last...
+ */
+static bool __init hpet_is_pc10_damaged(void)
+{
+	unsigned long long pcfg;
+
+	/* Check whether PC10 substates are supported */
+	if (!mwait_pc10_supported())
+		return false;
+
+	/* Check whether PC10 is enabled in PKG C-state limit */
+	rdmsrl(MSR_PKG_CST_CONFIG_CONTROL, pcfg);
+	if ((pcfg & 0xF) < 8)
+		return false;
+
+	if (hpet_force_user) {
+		pr_warn("HPET force enabled via command line, but dysfunctional in PC10.\n");
+		return false;
+	}
+
+	pr_info("HPET dysfunctional in PC10. Force disabled.\n");
+	boot_hpet_disable = true;
+	return true;
+}
+
 /**
  * hpet_enable - Try to setup the HPET timer. Returns 1 on success.
  */
@@ -819,6 +897,9 @@ int __init hpet_enable(void)
 	if (!is_hpet_capable())
 		return 0;
 
+	if (hpet_is_pc10_damaged())
+		return 0;
+
 	hpet_set_mapping();
 	if (!hpet_virt_address)
 		return 0;
-- 
GitLab


From 0268aa579b1f741b12300bc7f084ffe990cfde5f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 13 Oct 2021 10:04:30 +0200
Subject: [PATCH 0272/4878] Linux 5.10.73

Link: https://lore.kernel.org/r/20211011134508.362906295@linuxfoundation.org
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211011153306.939942789@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Link: https://lore.kernel.org/r/20211012093348.134236881@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 48211c8503d4e..3f62cea9afc0e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 72
+SUBLEVEL = 73
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 096df2158765ef722711a80dbfb7a1f90a3fd5d0 Mon Sep 17 00:00:00 2001
From: Jone Chou <jonechou@google.com>
Date: Sat, 9 Oct 2021 01:26:34 +0800
Subject: [PATCH 0273/4878] ANDROID: Update the ABI symbol list

__traceiter_android_rvh_arm64_serror_panic()
__traceiter_android_rvh_bad_mode()
__traceiter_android_rvh_die_kernel_fault()
__traceiter_android_rvh_do_mem_abort()
__traceiter_android_rvh_do_sea()
__traceiter_android_rvh_do_sp_pc_abort()
__traceiter_android_rvh_do_undefinstr()
are now used

Bug: 175824090
Signed-off-by: Jone Chou <jonechou@google.com>
Change-Id: I3082e3ba32d09e96d9e89c43566e399dc1ca61cb
---
 android/abi_gki_aarch64_generic | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 56668a860dd46..b13fd3adbc8dd 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1860,11 +1860,18 @@
   trace_event_raw_init
   trace_event_reg
   trace_handle_return
+  __traceiter_android_rvh_arm64_serror_panic
+  __traceiter_android_rvh_bad_mode
   __traceiter_android_rvh_cgroup_force_kthread_migration
   __traceiter_android_rvh_check_preempt_wakeup
   __traceiter_android_rvh_cpu_cgroup_online
   __traceiter_android_rvh_cpu_overutilized
   __traceiter_android_rvh_dequeue_task
+  __traceiter_android_rvh_die_kernel_fault
+  __traceiter_android_rvh_do_mem_abort
+  __traceiter_android_rvh_do_sea
+  __traceiter_android_rvh_do_sp_pc_abort
+  __traceiter_android_rvh_do_undefinstr
   __traceiter_android_rvh_find_energy_efficient_cpu
   __traceiter_android_rvh_irqs_disable
   __traceiter_android_rvh_irqs_enable
@@ -1932,11 +1939,18 @@
   __traceiter_sched_util_est_se_tp
   __traceiter_suspend_resume
   trace_output_call
+  __tracepoint_android_rvh_arm64_serror_panic
+  __tracepoint_android_rvh_bad_mode
   __tracepoint_android_rvh_cgroup_force_kthread_migration
   __tracepoint_android_rvh_check_preempt_wakeup
   __tracepoint_android_rvh_cpu_cgroup_online
   __tracepoint_android_rvh_cpu_overutilized
   __tracepoint_android_rvh_dequeue_task
+  __tracepoint_android_rvh_die_kernel_fault
+  __tracepoint_android_rvh_do_mem_abort
+  __tracepoint_android_rvh_do_sea
+  __tracepoint_android_rvh_do_sp_pc_abort
+  __tracepoint_android_rvh_do_undefinstr
   __tracepoint_android_rvh_find_energy_efficient_cpu
   __tracepoint_android_rvh_irqs_disable
   __tracepoint_android_rvh_irqs_enable
-- 
GitLab


From 85b077a461fd5eb61a96f7e456329b9e5e966ce2 Mon Sep 17 00:00:00 2001
From: Zenghui Yu <yuzenghui@huawei.com>
Date: Tue, 7 Sep 2021 13:21:37 +0800
Subject: [PATCH 0274/4878] UPSTREAM: KVM: arm64: nvhe: Fix missing FORCE for
 hyp-reloc.S build rule

Add FORCE so that if_changed can detect the command line change.

We'll otherwise see a compilation warning since commit e1f86d7b4b2a
("kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and
filechk").

arch/arm64/kvm/hyp/nvhe/Makefile:58: FORCE prerequisite is missing

Cc: David Brazdil <dbrazdil@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210907052137.1059-1-yuzenghui@huawei.com
(cherry picked from commit a49b50a3c1c3226d26e1dd11e8b763f27e477623)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: Ib180d4f602c655339a71856e25ea8fd66d562d86
---
 arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 73bd835d6aad1..18dd2dbdd5bf9 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -54,7 +54,7 @@ $(obj)/kvm_nvhe.tmp.o: $(obj)/hyp.lds $(addprefix $(obj)/,$(hyp-obj)) FORCE
 #    runtime. Because the hypervisor is part of the kernel binary, relocations
 #    produce a kernel VA. We enumerate relocations targeting hyp at build time
 #    and convert the kernel VAs at those positions to hyp VAs.
-$(obj)/hyp-reloc.S: $(obj)/kvm_nvhe.tmp.o $(obj)/gen-hyprel
+$(obj)/hyp-reloc.S: $(obj)/kvm_nvhe.tmp.o $(obj)/gen-hyprel FORCE
 	$(call if_changed,hyprel)
 
 # 5) Compile hyp-reloc.S and link it into the existing partially linked object.
-- 
GitLab


From 1f1ae710026bff66f8382cad7030905741a6cb7e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 19 Sep 2021 14:09:49 +0100
Subject: [PATCH 0275/4878] UPSTREAM: KVM: arm64: Fix PMU probe ordering

Russell reported that since 5.13, KVM's probing of the PMU has
started to fail on his HW. As it turns out, there is an implicit
ordering dependency between the architectural PMU probing code and
and KVM's own probing. If, due to probe ordering reasons, KVM probes
before the PMU driver, it will fail to detect the PMU and prevent it
from being advertised to guests as well as the VMM.

Obviously, this is one probing too many, and we should be able to
deal with any ordering.

Add a callback from the PMU code into KVM to advertise the registration
of a host CPU PMU, allowing for any probing order.

Fixes: 5421db1be3b1 ("KVM: arm64: Divorce the perf code from oprofile helpers")
Reported-by: "Russell King (Oracle)" <linux@armlinux.org.uk>
Tested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/YUYRKVflRtUytzy5@shell.armlinux.org.uk
Cc: stable@vger.kernel.org
(cherry picked from commit e840f42a49925707fca90e6c7a4095118fdb8c4d)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: I1e93edee2965c75fdbc306e456f97cfcb4c2e92d
---
 arch/arm64/kvm/perf.c        | 3 ---
 arch/arm64/kvm/pmu-emul.c    | 9 ++++++++-
 drivers/perf/arm_pmu.c       | 2 ++
 include/kvm/arm_pmu.h        | 3 ---
 include/linux/perf/arm_pmu.h | 6 ++++++
 5 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/perf.c b/arch/arm64/kvm/perf.c
index f9bb3b14130ee..c84fe24b2ea1e 100644
--- a/arch/arm64/kvm/perf.c
+++ b/arch/arm64/kvm/perf.c
@@ -50,9 +50,6 @@ static struct perf_guest_info_callbacks kvm_guest_cbs = {
 
 int kvm_perf_init(void)
 {
-	if (kvm_pmu_probe_pmuver() != ID_AA64DFR0_PMUVER_IMP_DEF && !is_protected_kvm_enabled())
-		static_branch_enable(&kvm_arm_pmu_available);
-
 	return perf_register_guest_info_callbacks(&kvm_guest_cbs);
 }
 
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index f5065f23b413f..2af3c37445e00 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -740,7 +740,14 @@ void kvm_pmu_set_counter_event_type(struct kvm_vcpu *vcpu, u64 data,
 	kvm_pmu_create_perf_event(vcpu, select_idx);
 }
 
-int kvm_pmu_probe_pmuver(void)
+void kvm_host_pmu_init(struct arm_pmu *pmu)
+{
+	if (pmu->pmuver != 0 && pmu->pmuver != ID_AA64DFR0_PMUVER_IMP_DEF &&
+	    !kvm_arm_support_pmu_v3() && !is_protected_kvm_enabled())
+		static_branch_enable(&kvm_arm_pmu_available);
+}
+
+static int kvm_pmu_probe_pmuver(void)
 {
 	struct perf_event_attr attr = { };
 	struct perf_event *event;
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index cb2f55f450e4a..18bc15a5f4189 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -986,6 +986,8 @@ int armpmu_register(struct arm_pmu *pmu)
 		pmu->name, pmu->num_events,
 		has_nmi ? ", using NMIs" : "");
 
+	kvm_host_pmu_init(pmu);
+
 	return 0;
 
 out_destroy:
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h
index 864b9997efb20..90f21898aad83 100644
--- a/include/kvm/arm_pmu.h
+++ b/include/kvm/arm_pmu.h
@@ -61,7 +61,6 @@ int kvm_arm_pmu_v3_get_attr(struct kvm_vcpu *vcpu,
 int kvm_arm_pmu_v3_has_attr(struct kvm_vcpu *vcpu,
 			    struct kvm_device_attr *attr);
 int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu);
-int kvm_pmu_probe_pmuver(void);
 #else
 struct kvm_pmu {
 };
@@ -118,8 +117,6 @@ static inline u64 kvm_pmu_get_pmceid(struct kvm_vcpu *vcpu, bool pmceid1)
 	return 0;
 }
 
-static inline int kvm_pmu_probe_pmuver(void) { return 0xf; }
-
 #endif
 
 #endif
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h
index 505480217cf1a..2512e2f9cd4e7 100644
--- a/include/linux/perf/arm_pmu.h
+++ b/include/linux/perf/arm_pmu.h
@@ -163,6 +163,12 @@ int arm_pmu_acpi_probe(armpmu_init_fn init_fn);
 static inline int arm_pmu_acpi_probe(armpmu_init_fn init_fn) { return 0; }
 #endif
 
+#ifdef CONFIG_KVM
+void kvm_host_pmu_init(struct arm_pmu *pmu);
+#else
+#define kvm_host_pmu_init(x)	do { } while(0)
+#endif
+
 /* Internal functions only for core arm_pmu code */
 struct arm_pmu *armpmu_alloc(void);
 struct arm_pmu *armpmu_alloc_atomic(void);
-- 
GitLab


From 02e48f383b2acb42c85028563cc75453842f11ce Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 11 Oct 2021 10:33:20 -0700
Subject: [PATCH 0276/4878] ANDROID: fips140: block crypto operations until
 tests complete

As per the new guidance from the lab, the module must block crypto
operations until the tests have completed.  It's unclear what this means
exactly (given that technically this is impossible), but let's make some
changes that should be enough to comply with the requirement's intent.

First, register the library functions and update the live algorithms
after the tests rather than before the tests.  This is a trivial change.

Much more problematic is the fact that the algorithms are registered
with the kernel's crypto framework before the tests run, as the tests
depend on the framework.  Unfortunately, the lab believes that the
kernel isn't allowed to enforce the ordering here; the module itself
must.  Moreover, trying to solve this by copying the crypto API
framework into the module proved to be heavily problematic.

Thus, implement an alternate solution: make the module override the tfm
initialization function of every algorithm it registers, so that it can
wait for the tests to complete before allowing the use of any algorithm.
This is sufficient if the user makes a supported sequence of API calls.

Bug: 153614920
Bug: 188620248
Change-Id: I11ffba90c08114dda4e91c4be7ce8b608c4e14c1
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/Makefile                   |  13 +-
 crypto/fips140-alg-registration.c | 388 ++++++++++++++++++++++++++++++
 crypto/fips140-defs.h             |  25 ++
 crypto/fips140-module.c           |  29 ++-
 crypto/fips140-module.h           |   4 +
 5 files changed, 442 insertions(+), 17 deletions(-)
 create mode 100644 crypto/fips140-alg-registration.c
 create mode 100644 crypto/fips140-defs.h

diff --git a/crypto/Makefile b/crypto/Makefile
index bee803d812d2a..9ada957d4cbd8 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -200,7 +200,7 @@ obj-$(CONFIG_CRYPTO_SIMD) += crypto_simd.o
 
 ifneq ($(CONFIG_CRYPTO_FIPS140_MOD),)
 
-FIPS140_CFLAGS := -D__DISABLE_EXPORTS -DBUILD_FIPS140_KO
+FIPS140_CFLAGS := -D__DISABLE_EXPORTS -DBUILD_FIPS140_KO -include fips140-defs.h
 
 CFLAGS_jitterentropy-fips.o := -O0
 KASAN_SANITIZE_jitterentropy-fips.o = n
@@ -233,10 +233,15 @@ $(obj)/lib-crypto-%-fips.o: $(srctree)/lib/crypto/%.c FORCE
 $(obj)/crypto-fips.a: $(addprefix $(obj)/,$(crypto-fips-objs)) FORCE
 	$(call if_changed,ar_and_symver)
 
-fips140-objs		:= fips140-module.o fips140-selftests.o crypto-fips.a \
-			   fips140-refs.o
-obj-m			+= fips140.o
+fips140-objs := \
+	fips140-alg-registration.o \
+	fips140-module.o \
+	fips140-refs.o \
+	fips140-selftests.o \
+	crypto-fips.a
+obj-m += fips140.o
 
+CFLAGS_fips140-alg-registration.o += $(FIPS140_CFLAGS)
 CFLAGS_fips140-module.o += $(FIPS140_CFLAGS)
 CFLAGS_fips140-selftests.o += $(FIPS140_CFLAGS)
 
diff --git a/crypto/fips140-alg-registration.c b/crypto/fips140-alg-registration.c
new file mode 100644
index 0000000000000..03757f88890b3
--- /dev/null
+++ b/crypto/fips140-alg-registration.c
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Block crypto operations until tests complete
+ *
+ * Copyright 2021 Google LLC
+ *
+ * This file defines the fips140_crypto_register_*() functions, to which all
+ * calls to crypto_register_*() in the module are redirected.  These functions
+ * override the tfm initialization function of each algorithm to insert a wait
+ * for the module having completed its self-tests and integrity check.
+ *
+ * The exact field that we override depends on the algorithm type.  For
+ * algorithm types that have a strongly-typed initialization function pointer
+ * (e.g. skcipher), we must override that, since cra_init isn't guaranteed to be
+ * called for those despite the field being present in the base struct.  For the
+ * other algorithm types (e.g. "cipher") we must override cra_init.
+ *
+ * All of this applies to both normal algorithms and template instances.
+ *
+ * The purpose of all of this is to meet a FIPS requirement where the module
+ * must not produce any output from cryptographic algorithms until it completes
+ * its tests.  Technically this is impossible, but this solution meets the
+ * intent of the requirement, assuming the user makes a supported sequence of
+ * API calls.  Note that we can't simply run the tests before registering the
+ * algorithms, as the algorithms must be registered in order to run the tests.
+ *
+ * It would be much easier to handle this in the kernel's crypto API framework.
+ * Unfortunately, that was deemed insufficient because the module itself is
+ * required to do the enforcement.  What is *actually* required is still very
+ * vague, but the approach implemented here should meet the requirement.
+ */
+
+/*
+ * This file is the one place in fips140.ko that needs to call the kernel's real
+ * algorithm registration functions, so #undefine all the macros from
+ * fips140-defs.h so that the "fips140_" prefix doesn't automatically get added.
+ */
+#undef aead_register_instance
+#undef ahash_register_instance
+#undef crypto_register_aead
+#undef crypto_register_aeads
+#undef crypto_register_ahash
+#undef crypto_register_ahashes
+#undef crypto_register_alg
+#undef crypto_register_algs
+#undef crypto_register_rng
+#undef crypto_register_rngs
+#undef crypto_register_shash
+#undef crypto_register_shashes
+#undef crypto_register_skcipher
+#undef crypto_register_skciphers
+#undef shash_register_instance
+#undef skcipher_register_instance
+
+#include <crypto/algapi.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/rng.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/xarray.h>
+
+#include "fips140-module.h"
+
+/* Indicates whether the self-tests and integrity check have completed */
+DECLARE_COMPLETION(fips140_tests_done);
+
+/* The thread running the self-tests and integrity check */
+struct task_struct *fips140_init_thread;
+
+/*
+ * Map from crypto_alg to original initialization function (possibly NULL)
+ *
+ * Note: unregistering an algorithm will leak its map entry, as we don't bother
+ * to remove it.  This should be fine since fips140.ko can't be unloaded.  The
+ * proper solution would be to store the original function pointer in a new
+ * field in 'struct crypto_alg', but that would require kernel support.
+ */
+static DEFINE_XARRAY(fips140_init_func_map);
+
+static bool fips140_ready(void)
+{
+	return completion_done(&fips140_tests_done);
+}
+
+/*
+ * Wait until crypto operations are allowed to proceed.  Return true if the
+ * tests are done, or false if the caller is the thread running the tests so it
+ * is allowed to proceed anyway.
+ */
+static bool fips140_wait_until_ready(struct crypto_alg *alg)
+{
+	if (fips140_ready())
+		return true;
+	/*
+	 * The thread running the tests must not wait.  Since tfms can only be
+	 * allocated in task context, we can reliably determine whether the
+	 * invocation is from that thread or not by checking 'current'.
+	 */
+	if (current == fips140_init_thread)
+		return false;
+
+	pr_info("blocking user of %s until tests complete\n",
+		alg->cra_driver_name);
+	wait_for_completion(&fips140_tests_done);
+	pr_info("tests done, allowing %s to proceed\n", alg->cra_driver_name);
+	return true;
+}
+
+static int fips140_store_init_function(struct crypto_alg *alg, void *func)
+{
+	void *ret;
+
+	/*
+	 * The XArray API requires 4-byte aligned values.  Although function
+	 * pointers in general aren't guaranteed to be 4-byte aligned, it should
+	 * be the case for the platforms this module is used on.
+	 */
+	if (WARN_ON((unsigned long)func & 3))
+		return -EINVAL;
+
+	ret = xa_store(&fips140_init_func_map, (unsigned long)alg, func,
+		       GFP_KERNEL);
+	return xa_err(ret);
+}
+
+/* Get the algorithm's original initialization function (possibly NULL) */
+static void *fips140_load_init_function(struct crypto_alg *alg)
+{
+	return xa_load(&fips140_init_func_map, (unsigned long)alg);
+}
+
+/* tfm initialization function overrides */
+
+static int fips140_alg_init_tfm(struct crypto_tfm *tfm)
+{
+	struct crypto_alg *alg = tfm->__crt_alg;
+	int (*cra_init)(struct crypto_tfm *tfm) =
+		fips140_load_init_function(alg);
+
+	if (fips140_wait_until_ready(alg))
+		WRITE_ONCE(alg->cra_init, cra_init);
+	return cra_init ? cra_init(tfm) : 0;
+}
+
+static int fips140_aead_init_tfm(struct crypto_aead *tfm)
+{
+	struct aead_alg *alg = crypto_aead_alg(tfm);
+	int (*init)(struct crypto_aead *tfm) =
+		fips140_load_init_function(&alg->base);
+
+	if (fips140_wait_until_ready(&alg->base))
+		WRITE_ONCE(alg->init, init);
+	return init ? init(tfm) : 0;
+}
+
+static int fips140_ahash_init_tfm(struct crypto_ahash *tfm)
+{
+	struct hash_alg_common *halg = crypto_hash_alg_common(tfm);
+	struct ahash_alg *alg = container_of(halg, struct ahash_alg, halg);
+	int (*init_tfm)(struct crypto_ahash *tfm) =
+		fips140_load_init_function(&halg->base);
+
+	if (fips140_wait_until_ready(&halg->base))
+		WRITE_ONCE(alg->init_tfm, init_tfm);
+	return init_tfm ? init_tfm(tfm) : 0;
+}
+
+static int fips140_shash_init_tfm(struct crypto_shash *tfm)
+{
+	struct shash_alg *alg = crypto_shash_alg(tfm);
+	int (*init_tfm)(struct crypto_shash *tfm) =
+		fips140_load_init_function(&alg->base);
+
+	if (fips140_wait_until_ready(&alg->base))
+		WRITE_ONCE(alg->init_tfm, init_tfm);
+	return init_tfm ? init_tfm(tfm) : 0;
+}
+
+static int fips140_skcipher_init_tfm(struct crypto_skcipher *tfm)
+{
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	int (*init)(struct crypto_skcipher *tfm) =
+		fips140_load_init_function(&alg->base);
+
+	if (fips140_wait_until_ready(&alg->base))
+		WRITE_ONCE(alg->init, init);
+	return init ? init(tfm) : 0;
+}
+
+/* Single algorithm registration */
+
+#define prepare_alg(alg, base_alg, field, wrapper_func)			\
+({									\
+	int err = 0;							\
+									\
+	if (!fips140_ready() && alg->field != wrapper_func) {		\
+		err = fips140_store_init_function(base_alg, alg->field);\
+		if (err == 0)						\
+			alg->field = wrapper_func;			\
+	}								\
+	err;								\
+})
+
+static int fips140_prepare_alg(struct crypto_alg *alg)
+{
+	/*
+	 * Override cra_init.  This is only for algorithm types like cipher and
+	 * rng that don't have a strongly-typed initialization function.
+	 */
+	return prepare_alg(alg, alg, cra_init, fips140_alg_init_tfm);
+}
+
+static int fips140_prepare_aead_alg(struct aead_alg *alg)
+{
+	return prepare_alg(alg, &alg->base, init, fips140_aead_init_tfm);
+}
+
+static int fips140_prepare_ahash_alg(struct ahash_alg *alg)
+{
+	return prepare_alg(alg, &alg->halg.base, init_tfm,
+			   fips140_ahash_init_tfm);
+}
+
+static int fips140_prepare_rng_alg(struct rng_alg *alg)
+{
+	/*
+	 * rng doesn't have a strongly-typed initialization function, so we must
+	 * treat rng algorithms as "generic" algorithms.
+	 */
+	return fips140_prepare_alg(&alg->base);
+}
+
+static int fips140_prepare_shash_alg(struct shash_alg *alg)
+{
+	return prepare_alg(alg, &alg->base, init_tfm, fips140_shash_init_tfm);
+}
+
+static int fips140_prepare_skcipher_alg(struct skcipher_alg *alg)
+{
+	return prepare_alg(alg, &alg->base, init, fips140_skcipher_init_tfm);
+}
+
+int fips140_crypto_register_alg(struct crypto_alg *alg)
+{
+	return fips140_prepare_alg(alg) ?: crypto_register_alg(alg);
+}
+
+int fips140_crypto_register_aead(struct aead_alg *alg)
+{
+	return fips140_prepare_aead_alg(alg) ?: crypto_register_aead(alg);
+}
+
+int fips140_crypto_register_ahash(struct ahash_alg *alg)
+{
+	return fips140_prepare_ahash_alg(alg) ?: crypto_register_ahash(alg);
+}
+
+int fips140_crypto_register_rng(struct rng_alg *alg)
+{
+	return fips140_prepare_rng_alg(alg) ?: crypto_register_rng(alg);
+}
+
+int fips140_crypto_register_shash(struct shash_alg *alg)
+{
+	return fips140_prepare_shash_alg(alg) ?: crypto_register_shash(alg);
+}
+
+int fips140_crypto_register_skcipher(struct skcipher_alg *alg)
+{
+	return fips140_prepare_skcipher_alg(alg) ?:
+		crypto_register_skcipher(alg);
+}
+
+/* Instance registration */
+
+int fips140_aead_register_instance(struct crypto_template *tmpl,
+				   struct aead_instance *inst)
+{
+	return fips140_prepare_aead_alg(&inst->alg) ?:
+		aead_register_instance(tmpl, inst);
+}
+
+int fips140_ahash_register_instance(struct crypto_template *tmpl,
+				    struct ahash_instance *inst)
+{
+	return fips140_prepare_ahash_alg(&inst->alg) ?:
+		ahash_register_instance(tmpl, inst);
+}
+
+int fips140_shash_register_instance(struct crypto_template *tmpl,
+				    struct shash_instance *inst)
+{
+	return fips140_prepare_shash_alg(&inst->alg) ?:
+		shash_register_instance(tmpl, inst);
+}
+
+int fips140_skcipher_register_instance(struct crypto_template *tmpl,
+				       struct skcipher_instance *inst)
+{
+	return fips140_prepare_skcipher_alg(&inst->alg) ?:
+		skcipher_register_instance(tmpl, inst);
+}
+
+/* Bulk algorithm registration */
+
+int fips140_crypto_register_algs(struct crypto_alg *algs, int count)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < count; i++) {
+		err = fips140_prepare_alg(&algs[i]);
+		if (err)
+			return err;
+	}
+
+	return crypto_register_algs(algs, count);
+}
+
+int fips140_crypto_register_aeads(struct aead_alg *algs, int count)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < count; i++) {
+		err = fips140_prepare_aead_alg(&algs[i]);
+		if (err)
+			return err;
+	}
+
+	return crypto_register_aeads(algs, count);
+}
+
+int fips140_crypto_register_ahashes(struct ahash_alg *algs, int count)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < count; i++) {
+		err = fips140_prepare_ahash_alg(&algs[i]);
+		if (err)
+			return err;
+	}
+
+	return crypto_register_ahashes(algs, count);
+}
+
+int fips140_crypto_register_rngs(struct rng_alg *algs, int count)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < count; i++) {
+		err = fips140_prepare_rng_alg(&algs[i]);
+		if (err)
+			return err;
+	}
+
+	return crypto_register_rngs(algs, count);
+}
+
+int fips140_crypto_register_shashes(struct shash_alg *algs, int count)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < count; i++) {
+		err = fips140_prepare_shash_alg(&algs[i]);
+		if (err)
+			return err;
+	}
+
+	return crypto_register_shashes(algs, count);
+}
+
+int fips140_crypto_register_skciphers(struct skcipher_alg *algs, int count)
+{
+	int i;
+	int err;
+
+	for (i = 0; i < count; i++) {
+		err = fips140_prepare_skcipher_alg(&algs[i]);
+		if (err)
+			return err;
+	}
+
+	return crypto_register_skciphers(algs, count);
+}
diff --git a/crypto/fips140-defs.h b/crypto/fips140-defs.h
new file mode 100644
index 0000000000000..e64a2f739aa91
--- /dev/null
+++ b/crypto/fips140-defs.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2021 Google LLC
+ *
+ * This file is automatically included by all files built into fips140.ko, via
+ * the "-include" compiler flag.  It redirects all calls to algorithm
+ * registration functions to the wrapper functions defined within the module.
+ */
+
+#define aead_register_instance		fips140_aead_register_instance
+#define ahash_register_instance		fips140_ahash_register_instance
+#define crypto_register_aead		fips140_crypto_register_aead
+#define crypto_register_aeads		fips140_crypto_register_aeads
+#define crypto_register_ahash		fips140_crypto_register_ahash
+#define crypto_register_ahashes		fips140_crypto_register_ahashes
+#define crypto_register_alg		fips140_crypto_register_alg
+#define crypto_register_algs		fips140_crypto_register_algs
+#define crypto_register_rng		fips140_crypto_register_rng
+#define crypto_register_rngs		fips140_crypto_register_rngs
+#define crypto_register_shash		fips140_crypto_register_shash
+#define crypto_register_shashes		fips140_crypto_register_shashes
+#define crypto_register_skcipher	fips140_crypto_register_skcipher
+#define crypto_register_skciphers	fips140_crypto_register_skciphers
+#define shash_register_instance		fips140_shash_register_instance
+#define skcipher_register_instance	fips140_skcipher_register_instance
diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 704b367ec562f..31df2b1e006f9 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -571,6 +571,7 @@ fips140_init(void)
 	const u32 *initcall;
 
 	pr_info("loading module\n");
+	fips140_init_thread = current;
 
 	unregister_existing_fips140_algos();
 
@@ -592,19 +593,6 @@ fips140_init(void)
 		}
 	}
 
-	if (!update_live_fips140_algos())
-		goto panic;
-
-	if (!update_fips140_library_routines())
-		goto panic;
-
-	/*
-	 * Wait until all tasks have at least been scheduled once and preempted
-	 * voluntarily. This ensures that none of the superseded algorithms that
-	 * were already in use will still be live.
-	 */
-	synchronize_rcu_tasks();
-
 	if (!fips140_run_selftests())
 		goto panic;
 
@@ -623,6 +611,21 @@ fips140_init(void)
 	}
 	pr_info("integrity check passed\n");
 
+	complete_all(&fips140_tests_done);
+
+	if (!update_live_fips140_algos())
+		goto panic;
+
+	if (!update_fips140_library_routines())
+		goto panic;
+
+	/*
+	 * Wait until all tasks have at least been scheduled once and preempted
+	 * voluntarily. This ensures that none of the superseded algorithms that
+	 * were already in use will still be live.
+	 */
+	synchronize_rcu_tasks();
+
 	pr_info("module successfully loaded\n");
 	return 0;
 
diff --git a/crypto/fips140-module.h b/crypto/fips140-module.h
index b30a2e2928a65..f33580cf7bf8b 100644
--- a/crypto/fips140-module.h
+++ b/crypto/fips140-module.h
@@ -6,6 +6,7 @@
 #ifndef _CRYPTO_FIPS140_MODULE_H
 #define _CRYPTO_FIPS140_MODULE_H
 
+#include <linux/completion.h>
 #include <linux/module.h>
 
 #undef pr_fmt
@@ -15,6 +16,9 @@
 extern char *fips140_broken_alg;
 #endif
 
+extern struct completion fips140_tests_done;
+extern struct task_struct *fips140_init_thread;
+
 bool __init __must_check fips140_run_selftests(void);
 
 #endif /* _CRYPTO_FIPS140_MODULE_H */
-- 
GitLab


From 19ed81406a97503b48cdb37b98d88c90f9f9ccee Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Tue, 12 Oct 2021 11:39:14 -0700
Subject: [PATCH 0277/4878] ANDROID: ABI: update fips140 symbol list

Generated by running:

    BUILD_CONFIG=common/build.config.gki.aarch64.fips140 build/build_abi.sh --update-symbol-list

Note: some registration functions are added to the list only because
they are called from fips140-alg-registration.c by wrapper functions
that aren't currently used.  I'm thinking it makes sense to include
these extra wrapper functions so that people don't have to dig into the
guts of fips140-alg-registration.c to add and remove wrappers later as
the kernel is updated.  E.g., currently the module's algorithms happen
to use crypto_register_skciphers() but not crypto_register_skcipher(),
but this is just an implementation detail.  Also, most of these extra
symbols will end up being used by OEM crypto drivers (like they are in
android12-5.10) and thus will end up in the KMI anyway.

We could drop this extra stuff if it's preferred, though.

Bug: 188620248
Change-Id: Icd74d8d31889e7771ec0bc0c05bcb59173016a8a
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 android/abi_gki_aarch64_fips140 | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/android/abi_gki_aarch64_fips140 b/android/abi_gki_aarch64_fips140
index d541c9f794dcb..9706be74a95a6 100644
--- a/android/abi_gki_aarch64_fips140
+++ b/android/abi_gki_aarch64_fips140
@@ -6,10 +6,13 @@
 # required by fips140.ko
   add_random_ready_callback
   aead_register_instance
+  ahash_register_instance
   arch_timer_read_counter
   bcmp
   cancel_work_sync
   __cfi_slowpath
+  complete_all
+  completion_done
   cpu_have_feature
   crypto_aead_decrypt
   crypto_aead_encrypt
@@ -40,11 +43,16 @@
   crypto_inst_setname
   crypto_put_default_null_skcipher
   crypto_register_aead
+  crypto_register_aeads
+  crypto_register_ahash
+  crypto_register_ahashes
   crypto_register_alg
+  crypto_register_algs
   crypto_register_rng
   crypto_register_rngs
   crypto_register_shash
   crypto_register_shashes
+  crypto_register_skcipher
   crypto_register_skciphers
   crypto_register_template
   crypto_register_templates
@@ -137,3 +145,5 @@
   tracepoint_probe_register
   up_write
   wait_for_completion
+  xa_load
+  xa_store
-- 
GitLab


From 7d9b940e8bac2505ae807960b31185d0009a0f02 Mon Sep 17 00:00:00 2001
From: "Isaac J. Manjarres" <isaacm@codeaurora.org>
Date: Wed, 13 Oct 2021 15:44:26 -0700
Subject: [PATCH 0278/4878] ANDROID: GKI: Disable CONFIG_ZONE_DMA on x86

Disable this config to remove unused zone.

Bug: 202983514
Change-Id: Ia56b0e3394db6801956980bccb09f233cc5bc106
Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
---
 arch/x86/configs/gki_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index a4b51298fab78..ac72b64614604 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -47,6 +47,7 @@ CONFIG_SLAB_FREELIST_RANDOM=y
 CONFIG_SLAB_FREELIST_HARDENED=y
 CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
 CONFIG_PROFILING=y
+# CONFIG_ZONE_DMA is not set
 CONFIG_SMP=y
 CONFIG_X86_X2APIC=y
 CONFIG_HYPERVISOR_GUEST=y
-- 
GitLab


From d7a15e1e4fd7db751739d04141390fa6699fd870 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Fri, 16 Jul 2021 20:20:21 +0800
Subject: [PATCH 0279/4878] ext4: check and update i_disksize properly

[ Upstream commit 4df031ff5876d94b48dd9ee486ba5522382a06b2 ]

After commit 3da40c7b0898 ("ext4: only call ext4_truncate when size <=
isize"), i_disksize could always be updated to i_size in ext4_setattr(),
and we could sure that i_disksize <= i_size since holding inode lock and
if i_disksize < i_size there are delalloc writes pending in the range
upto i_size. If the end of the current write is <= i_size, there's no
need to touch i_disksize since writeback will push i_disksize upto
i_size eventually. So we can switch to check i_size instead of
i_disksize in ext4_da_write_end() when write to the end of the file.
we also could remove ext4_mark_inode_dirty() together because we defer
inode dirtying to generic_write_end() or ext4_da_write_inline_data_end().

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210716122024.1105856-2-yi.zhang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/inode.c | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 63a292db75877..f0dcc09e220be 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3090,35 +3090,37 @@ static int ext4_da_write_end(struct file *file,
 	end = start + copied - 1;
 
 	/*
-	 * generic_write_end() will run mark_inode_dirty() if i_size
-	 * changes.  So let's piggyback the i_disksize mark_inode_dirty
-	 * into that.
+	 * Since we are holding inode lock, we are sure i_disksize <=
+	 * i_size. We also know that if i_disksize < i_size, there are
+	 * delalloc writes pending in the range upto i_size. If the end of
+	 * the current write is <= i_size, there's no need to touch
+	 * i_disksize since writeback will push i_disksize upto i_size
+	 * eventually. If the end of the current write is > i_size and
+	 * inside an allocated block (ext4_da_should_update_i_disksize()
+	 * check), we need to update i_disksize here as neither
+	 * ext4_writepage() nor certain ext4_writepages() paths not
+	 * allocating blocks update i_disksize.
+	 *
+	 * Note that we defer inode dirtying to generic_write_end() /
+	 * ext4_da_write_inline_data_end().
 	 */
 	new_i_size = pos + copied;
-	if (copied && new_i_size > EXT4_I(inode)->i_disksize) {
+	if (copied && new_i_size > inode->i_size) {
 		if (ext4_has_inline_data(inode) ||
-		    ext4_da_should_update_i_disksize(page, end)) {
+		    ext4_da_should_update_i_disksize(page, end))
 			ext4_update_i_disksize(inode, new_i_size);
-			/* We need to mark inode dirty even if
-			 * new_i_size is less that inode->i_size
-			 * bu greater than i_disksize.(hint delalloc)
-			 */
-			ret = ext4_mark_inode_dirty(handle, inode);
-		}
 	}
 
 	if (write_mode != CONVERT_INLINE_DATA &&
 	    ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA) &&
 	    ext4_has_inline_data(inode))
-		ret2 = ext4_da_write_inline_data_end(inode, pos, len, copied,
+		ret = ext4_da_write_inline_data_end(inode, pos, len, copied,
 						     page);
 	else
-		ret2 = generic_write_end(file, mapping, pos, len, copied,
+		ret = generic_write_end(file, mapping, pos, len, copied,
 							page, fsdata);
 
-	copied = ret2;
-	if (ret2 < 0)
-		ret = ret2;
+	copied = ret;
 	ret2 = ext4_journal_stop(handle);
 	if (unlikely(ret2 && !ret))
 		ret = ret2;
-- 
GitLab


From 14cbfeeee41b83167bc308f01983618cc5851b53 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Fri, 16 Jul 2021 20:20:22 +0800
Subject: [PATCH 0280/4878] ext4: correct the error path of
 ext4_write_inline_data_end()

[ Upstream commit 55ce2f649b9e88111270333a8127e23f4f8f42d7 ]

Current error path of ext4_write_inline_data_end() is not correct.

Firstly, it should pass out the error value if ext4_get_inode_loc()
return fail, or else it could trigger infinite loop if we inject error
here. And then it's better to add inode to orphan list if it return fail
in ext4_journal_stop(), otherwise we could not restore inline xattr
entry after power failure. Finally, we need to reset the 'ret' value if
ext4_write_inline_data_end() return success in ext4_write_end() and
ext4_journalled_write_end(), otherwise we could not get the error return
value of ext4_journal_stop().

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210716122024.1105856-3-yi.zhang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/inline.c | 15 +++++----------
 fs/ext4/inode.c  |  7 +++++--
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 0f7b53d5edea6..a96b688a0410f 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -733,18 +733,13 @@ int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
 	void *kaddr;
 	struct ext4_iloc iloc;
 
-	if (unlikely(copied < len)) {
-		if (!PageUptodate(page)) {
-			copied = 0;
-			goto out;
-		}
-	}
+	if (unlikely(copied < len) && !PageUptodate(page))
+		return 0;
 
 	ret = ext4_get_inode_loc(inode, &iloc);
 	if (ret) {
 		ext4_std_error(inode->i_sb, ret);
-		copied = 0;
-		goto out;
+		return ret;
 	}
 
 	ext4_write_lock_xattr(inode, &no_expand);
@@ -757,7 +752,7 @@ int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
 	(void) ext4_find_inline_data_nolock(inode);
 
 	kaddr = kmap_atomic(page);
-	ext4_write_inline_data(inode, &iloc, kaddr, pos, len);
+	ext4_write_inline_data(inode, &iloc, kaddr, pos, copied);
 	kunmap_atomic(kaddr);
 	SetPageUptodate(page);
 	/* clear page dirty so that writepages wouldn't work for us. */
@@ -766,7 +761,7 @@ int ext4_write_inline_data_end(struct inode *inode, loff_t pos, unsigned len,
 	ext4_write_unlock_xattr(inode, &no_expand);
 	brelse(iloc.bh);
 	mark_inode_dirty(inode);
-out:
+
 	return copied;
 }
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f0dcc09e220be..317aa1b90fb95 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1296,6 +1296,7 @@ static int ext4_write_end(struct file *file,
 			goto errout;
 		}
 		copied = ret;
+		ret = 0;
 	} else
 		copied = block_write_end(file, mapping, pos,
 					 len, copied, page, fsdata);
@@ -1322,13 +1323,14 @@ static int ext4_write_end(struct file *file,
 	if (i_size_changed || inline_data)
 		ret = ext4_mark_inode_dirty(handle, inode);
 
+errout:
 	if (pos + len > inode->i_size && !verity && ext4_can_truncate(inode))
 		/* if we have allocated more blocks and copied
 		 * less. We will have blocks allocated outside
 		 * inode->i_size. So truncate them
 		 */
 		ext4_orphan_add(handle, inode);
-errout:
+
 	ret2 = ext4_journal_stop(handle);
 	if (!ret)
 		ret = ret2;
@@ -1411,6 +1413,7 @@ static int ext4_journalled_write_end(struct file *file,
 			goto errout;
 		}
 		copied = ret;
+		ret = 0;
 	} else if (unlikely(copied < len) && !PageUptodate(page)) {
 		copied = 0;
 		ext4_journalled_zero_new_buffers(handle, page, from, to);
@@ -1440,6 +1443,7 @@ static int ext4_journalled_write_end(struct file *file,
 			ret = ret2;
 	}
 
+errout:
 	if (pos + len > inode->i_size && !verity && ext4_can_truncate(inode))
 		/* if we have allocated more blocks and copied
 		 * less. We will have blocks allocated outside
@@ -1447,7 +1451,6 @@ static int ext4_journalled_write_end(struct file *file,
 		 */
 		ext4_orphan_add(handle, inode);
 
-errout:
 	ret2 = ext4_journal_stop(handle);
 	if (!ret)
 		ret = ret2;
-- 
GitLab


From 0bcfa99e8faeef75567e6d3a5ac9680d28240b21 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Tue, 7 Sep 2021 13:44:36 -0500
Subject: [PATCH 0281/4878] ASoC: Intel: sof_sdw: tag SoundWire BEs as
 non-atomic

[ Upstream commit 58eafe1ff52ee1ce255759fc15729519af180cbb ]

The SoundWire BEs make use of 'stream' functions for .prepare and
.trigger. These functions will in turn force a Bank Switch, which
implies a wait operation.

Mark SoundWire BEs as nonatomic for consistency, but keep all other
types of BEs as is. The initialization of .nonatomic is done outside
of the create_sdw_dailink helper to avoid adding more parameters to
deal with a single exception to the rule that BEs are atomic.

Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210907184436.33152-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/sof_sdw.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index 2770e8179983a..25548555d8d79 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -847,6 +847,11 @@ static int create_sdw_dailink(struct device *dev, int *be_index,
 			      cpus + *cpu_id, cpu_dai_num,
 			      codecs, codec_num,
 			      NULL, &sdw_ops);
+		/*
+		 * SoundWire DAILINKs use 'stream' functions and Bank Switch operations
+		 * based on wait_for_completion(), tag them as 'nonatomic'.
+		 */
+		dai_links[*be_index].nonatomic = true;
 
 		ret = set_codec_init_func(link, dai_links + (*be_index)++,
 					  playback, group_id);
-- 
GitLab


From ddf026d6ae9aa6ba188800c9e3f2e79ec1597a67 Mon Sep 17 00:00:00 2001
From: Mizuho Mori <morimolymoly@gmail.com>
Date: Thu, 29 Jul 2021 20:03:25 +0900
Subject: [PATCH 0282/4878] HID: apple: Fix logical maximum and usage maximum
 of Magic Keyboard JIS
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 67fd71ba16a37c663d139f5ba5296f344d80d072 ]

Apple Magic Keyboard(JIS)'s Logical Maximum and Usage Maximum are wrong.

Below is a report descriptor.

0x05, 0x01,         /*  Usage Page (Desktop),                           */
0x09, 0x06,         /*  Usage (Keyboard),                               */
0xA1, 0x01,         /*  Collection (Application),                       */
0x85, 0x01,         /*      Report ID (1),                              */
0x05, 0x07,         /*      Usage Page (Keyboard),                      */
0x15, 0x00,         /*      Logical Minimum (0),                        */
0x25, 0x01,         /*      Logical Maximum (1),                        */
0x19, 0xE0,         /*      Usage Minimum (KB Leftcontrol),             */
0x29, 0xE7,         /*      Usage Maximum (KB Right GUI),               */
0x75, 0x01,         /*      Report Size (1),                            */
0x95, 0x08,         /*      Report Count (8),                           */
0x81, 0x02,         /*      Input (Variable),                           */
0x95, 0x05,         /*      Report Count (5),                           */
0x75, 0x01,         /*      Report Size (1),                            */
0x05, 0x08,         /*      Usage Page (LED),                           */
0x19, 0x01,         /*      Usage Minimum (01h),                        */
0x29, 0x05,         /*      Usage Maximum (05h),                        */
0x91, 0x02,         /*      Output (Variable),                          */
0x95, 0x01,         /*      Report Count (1),                           */
0x75, 0x03,         /*      Report Size (3),                            */
0x91, 0x03,         /*      Output (Constant, Variable),                */
0x95, 0x08,         /*      Report Count (8),                           */
0x75, 0x01,         /*      Report Size (1),                            */
0x15, 0x00,         /*      Logical Minimum (0),                        */
0x25, 0x01,         /*      Logical Maximum (1),                        */

here is a report descriptor which is parsed one in kernel.
see sys/kernel/debug/hid/<dev>/rdesc

05 01 09 06 a1 01 85 01 05 07
15 00 25 01 19 e0 29 e7 75 01
95 08 81 02 95 05 75 01 05 08
19 01 29 05 91 02 95 01 75 03
91 03 95 08 75 01 15 00 25 01
06 00 ff 09 03 81 03 95 06 75
08 15 00 25 [65] 05 07 19 00 29
[65] 81 00 95 01 75 01 15 00 25
01 05 0c 09 b8 81 02 95 01 75
01 06 01 ff 09 03 81 02 95 01
75 06 81 03 06 02 ff 09 55 85
55 15 00 26 ff 00 75 08 95 40
b1 a2 c0 06 00 ff 09 14 a1 01
85 90 05 84 75 01 95 03 15 00
25 01 09 61 05 85 09 44 09 46
81 02 95 05 81 01 75 08 95 01
15 00 26 ff 00 09 65 81 02 c0
00

Position 64(Logical Maximum) and 70(Usage Maximum) are 101.
Both should be 0xE7 to support JIS specific keys(ろ, Eisu, Kana, |) support.
position 117 is also 101 but not related(it is Usage 65h).

There are no difference of product id between JIS and ANSI.
They are same 0x0267.

Signed-off-by: Mizuho Mori <morimolymoly@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-apple.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 6b8f0d004d345..5c1d33cda863b 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -322,12 +322,19 @@ static int apple_event(struct hid_device *hdev, struct hid_field *field,
 
 /*
  * MacBook JIS keyboard has wrong logical maximum
+ * Magic Keyboard JIS has wrong logical maximum
  */
 static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
 	struct apple_sc *asc = hid_get_drvdata(hdev);
 
+	if(*rsize >=71 && rdesc[70] == 0x65 && rdesc[64] == 0x65) {
+		hid_info(hdev,
+			 "fixing up Magic Keyboard JIS report descriptor\n");
+		rdesc[64] = rdesc[70] = 0xe7;
+	}
+
 	if ((asc->quirks & APPLE_RDESC_JIS) && *rsize >= 60 &&
 			rdesc[53] == 0x65 && rdesc[59] == 0x65) {
 		hid_info(hdev,
-- 
GitLab


From ddc4ba737bcb31c227192af4e194ec0f01516700 Mon Sep 17 00:00:00 2001
From: Jeremy Sowden <jeremy@azazel.net>
Date: Sun, 12 Sep 2021 22:24:33 +0100
Subject: [PATCH 0283/4878] netfilter: ip6_tables: zero-initialize fragment
 offset

[ Upstream commit 310e2d43c3ad429c1fba4b175806cf1f55ed73a6 ]

ip6tables only sets the `IP6T_F_PROTO` flag on a rule if a protocol is
specified (`-p tcp`, for example).  However, if the flag is not set,
`ip6_packet_match` doesn't call `ipv6_find_hdr` for the skb, in which
case the fragment offset is left uninitialized and a garbage value is
passed to each matcher.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/netfilter/ip6_tables.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index eb2b5404806c6..d36168baf6776 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -273,6 +273,7 @@ ip6t_do_table(struct sk_buff *skb,
 	 * things we don't know, ie. tcp syn flag or ports).  If the
 	 * rule is also a fragment-specific rule, non-fragments won't
 	 * match it. */
+	acpar.fragoff = 0;
 	acpar.hotdrop = false;
 	acpar.state   = state;
 
-- 
GitLab


From f6952b1e22c2de8f23d59f944b0f17cb2733a846 Mon Sep 17 00:00:00 2001
From: Joshua-Dickens <Joshua@Joshua-Dickens.com>
Date: Tue, 14 Sep 2021 13:28:25 -0400
Subject: [PATCH 0284/4878] HID: wacom: Add new Intuos BT
 (CTL-4100WL/CTL-6100WL) device IDs

[ Upstream commit 0c8fbaa553077630e8eae45bd9676cfc01836aeb ]

Add the new PIDs to wacom_wac.c to support the new models in the Intuos series.

[jkosina@suse.cz: fix changelog]
Signed-off-by: Joshua Dickens <joshua.dickens@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/wacom_wac.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 4228ddc3df0e6..b2719cf37aa52 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -4715,6 +4715,12 @@ static const struct wacom_features wacom_features_0x393 =
 	{ "Wacom Intuos Pro S", 31920, 19950, 8191, 63,
 	  INTUOSP2S_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 7,
 	  .touch_max = 10 };
+static const struct wacom_features wacom_features_0x3c6 =
+	{ "Wacom Intuos BT S", 15200, 9500, 4095, 63,
+	  INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
+static const struct wacom_features wacom_features_0x3c8 =
+	{ "Wacom Intuos BT M", 21600, 13500, 4095, 63,
+	  INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
 
 static const struct wacom_features wacom_features_HID_ANY_ID =
 	{ "Wacom HID", .type = HID_GENERIC, .oVid = HID_ANY_ID, .oPid = HID_ANY_ID };
@@ -4888,6 +4894,8 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x37A) },
 	{ USB_DEVICE_WACOM(0x37B) },
 	{ BT_DEVICE_WACOM(0x393) },
+	{ BT_DEVICE_WACOM(0x3c6) },
+	{ BT_DEVICE_WACOM(0x3c8) },
 	{ USB_DEVICE_WACOM(0x4001) },
 	{ USB_DEVICE_WACOM(0x4004) },
 	{ USB_DEVICE_WACOM(0x5000) },
-- 
GitLab


From bcb647c1e15d3ddd8ab94d556aa38d77448b40d9 Mon Sep 17 00:00:00 2001
From: Marc Herbert <marc.herbert@intel.com>
Date: Thu, 16 Sep 2021 11:50:08 +0300
Subject: [PATCH 0285/4878] ASoC: SOF: loader: release_firmware() on load
 failure to avoid batching

[ Upstream commit 8a8e1813ffc35111fc0b6db49968ceb0e1615ced ]

Invoke release_firmware() when the firmware fails to boot in
sof_probe_continue().

The request_firmware() framework must be informed of failures in
sof_probe_continue() otherwise its internal "batching"
feature (different from caching) cached the firmware image
forever. Attempts to correct the file in /lib/firmware/ were then
silently and confusingly ignored until the next reboot. Unloading the
drivers did not help because from their disconnected perspective the
firmware had failed so there was nothing to release.

Also leverage the new snd_sof_fw_unload() function to simplify the
snd_sof_device_remove() function.

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20210916085008.28929-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/core.c   | 4 +---
 sound/soc/sof/loader.c | 2 ++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index adc7c37145d64..feced9077dfe1 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -354,7 +354,6 @@ int snd_sof_device_remove(struct device *dev)
 			dev_warn(dev, "error: %d failed to prepare DSP for device removal",
 				 ret);
 
-		snd_sof_fw_unload(sdev);
 		snd_sof_ipc_free(sdev);
 		snd_sof_free_debug(sdev);
 		snd_sof_free_trace(sdev);
@@ -377,8 +376,7 @@ int snd_sof_device_remove(struct device *dev)
 		snd_sof_remove(sdev);
 
 	/* release firmware */
-	release_firmware(pdata->fw);
-	pdata->fw = NULL;
+	snd_sof_fw_unload(sdev);
 
 	return 0;
 }
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index ba9ed66f98bc7..2d5c3fc93bc5c 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -830,5 +830,7 @@ EXPORT_SYMBOL(snd_sof_run_firmware);
 void snd_sof_fw_unload(struct snd_sof_dev *sdev)
 {
 	/* TODO: support module unloading at runtime */
+	release_firmware(sdev->pdata->fw);
+	sdev->pdata->fw = NULL;
 }
 EXPORT_SYMBOL(snd_sof_fw_unload);
-- 
GitLab


From 5182d6db80bb2f08a7d700c5c4b8c3d0db58411c Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 15 Sep 2021 16:46:38 +0200
Subject: [PATCH 0286/4878] netfilter: nf_nat_masquerade: make async
 masq_inet6_event handling generic

[ Upstream commit 30db406923b9285a9bac06a6af5e74bd6d0f1d06 ]

masq_inet6_event is called asynchronously from system work queue,
because the inet6 notifier is atomic and nf_iterate_cleanup can sleep.

The ipv4 and device notifiers call nf_iterate_cleanup directly.

This is legal, but these notifiers are called with RTNL mutex held.
A large conntrack table with many devices coming and going will have severe
impact on the system usability, with 'ip a' blocking for several seconds.

This change places the defer code into a helper and makes it more
generic so ipv4 and ifdown notifiers can be converted to defer the
cleanup walk as well in a follow patch.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_nat_masquerade.c | 122 ++++++++++++++++++------------
 1 file changed, 75 insertions(+), 47 deletions(-)

diff --git a/net/netfilter/nf_nat_masquerade.c b/net/netfilter/nf_nat_masquerade.c
index 8e8a65d46345b..415919a6ac1ad 100644
--- a/net/netfilter/nf_nat_masquerade.c
+++ b/net/netfilter/nf_nat_masquerade.c
@@ -9,8 +9,19 @@
 
 #include <net/netfilter/nf_nat_masquerade.h>
 
+struct masq_dev_work {
+	struct work_struct work;
+	struct net *net;
+	union nf_inet_addr addr;
+	int ifindex;
+	int (*iter)(struct nf_conn *i, void *data);
+};
+
+#define MAX_MASQ_WORKER_COUNT	16
+
 static DEFINE_MUTEX(masq_mutex);
 static unsigned int masq_refcnt __read_mostly;
+static atomic_t masq_worker_count __read_mostly;
 
 unsigned int
 nf_nat_masquerade_ipv4(struct sk_buff *skb, unsigned int hooknum,
@@ -63,6 +74,63 @@ nf_nat_masquerade_ipv4(struct sk_buff *skb, unsigned int hooknum,
 }
 EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv4);
 
+static void iterate_cleanup_work(struct work_struct *work)
+{
+	struct masq_dev_work *w;
+
+	w = container_of(work, struct masq_dev_work, work);
+
+	nf_ct_iterate_cleanup_net(w->net, w->iter, (void *)w, 0, 0);
+
+	put_net(w->net);
+	kfree(w);
+	atomic_dec(&masq_worker_count);
+	module_put(THIS_MODULE);
+}
+
+/* Iterate conntrack table in the background and remove conntrack entries
+ * that use the device/address being removed.
+ *
+ * In case too many work items have been queued already or memory allocation
+ * fails iteration is skipped, conntrack entries will time out eventually.
+ */
+static void nf_nat_masq_schedule(struct net *net, union nf_inet_addr *addr,
+				 int ifindex,
+				 int (*iter)(struct nf_conn *i, void *data),
+				 gfp_t gfp_flags)
+{
+	struct masq_dev_work *w;
+
+	if (atomic_read(&masq_worker_count) > MAX_MASQ_WORKER_COUNT)
+		return;
+
+	net = maybe_get_net(net);
+	if (!net)
+		return;
+
+	if (!try_module_get(THIS_MODULE))
+		goto err_module;
+
+	w = kzalloc(sizeof(*w), gfp_flags);
+	if (w) {
+		/* We can overshoot MAX_MASQ_WORKER_COUNT, no big deal */
+		atomic_inc(&masq_worker_count);
+
+		INIT_WORK(&w->work, iterate_cleanup_work);
+		w->ifindex = ifindex;
+		w->net = net;
+		w->iter = iter;
+		if (addr)
+			w->addr = *addr;
+		schedule_work(&w->work);
+		return;
+	}
+
+	module_put(THIS_MODULE);
+ err_module:
+	put_net(net);
+}
+
 static int device_cmp(struct nf_conn *i, void *ifindex)
 {
 	const struct nf_conn_nat *nat = nfct_nat(i);
@@ -136,8 +204,6 @@ static struct notifier_block masq_inet_notifier = {
 };
 
 #if IS_ENABLED(CONFIG_IPV6)
-static atomic_t v6_worker_count __read_mostly;
-
 static int
 nat_ipv6_dev_get_saddr(struct net *net, const struct net_device *dev,
 		       const struct in6_addr *daddr, unsigned int srcprefs,
@@ -187,13 +253,6 @@ nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range2 *range,
 }
 EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6);
 
-struct masq_dev_work {
-	struct work_struct work;
-	struct net *net;
-	struct in6_addr addr;
-	int ifindex;
-};
-
 static int inet6_cmp(struct nf_conn *ct, void *work)
 {
 	struct masq_dev_work *w = (struct masq_dev_work *)work;
@@ -204,21 +263,7 @@ static int inet6_cmp(struct nf_conn *ct, void *work)
 
 	tuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
 
-	return ipv6_addr_equal(&w->addr, &tuple->dst.u3.in6);
-}
-
-static void iterate_cleanup_work(struct work_struct *work)
-{
-	struct masq_dev_work *w;
-
-	w = container_of(work, struct masq_dev_work, work);
-
-	nf_ct_iterate_cleanup_net(w->net, inet6_cmp, (void *)w, 0, 0);
-
-	put_net(w->net);
-	kfree(w);
-	atomic_dec(&v6_worker_count);
-	module_put(THIS_MODULE);
+	return nf_inet_addr_cmp(&w->addr, &tuple->dst.u3);
 }
 
 /* atomic notifier; can't call nf_ct_iterate_cleanup_net (it can sleep).
@@ -233,36 +278,19 @@ static int masq_inet6_event(struct notifier_block *this,
 {
 	struct inet6_ifaddr *ifa = ptr;
 	const struct net_device *dev;
-	struct masq_dev_work *w;
-	struct net *net;
+	union nf_inet_addr addr;
 
-	if (event != NETDEV_DOWN || atomic_read(&v6_worker_count) >= 16)
+	if (event != NETDEV_DOWN)
 		return NOTIFY_DONE;
 
 	dev = ifa->idev->dev;
-	net = maybe_get_net(dev_net(dev));
-	if (!net)
-		return NOTIFY_DONE;
 
-	if (!try_module_get(THIS_MODULE))
-		goto err_module;
+	memset(&addr, 0, sizeof(addr));
 
-	w = kmalloc(sizeof(*w), GFP_ATOMIC);
-	if (w) {
-		atomic_inc(&v6_worker_count);
+	addr.in6 = ifa->addr;
 
-		INIT_WORK(&w->work, iterate_cleanup_work);
-		w->ifindex = dev->ifindex;
-		w->net = net;
-		w->addr = ifa->addr;
-		schedule_work(&w->work);
-
-		return NOTIFY_DONE;
-	}
-
-	module_put(THIS_MODULE);
- err_module:
-	put_net(net);
+	nf_nat_masq_schedule(dev_net(dev), &addr, dev->ifindex, inet6_cmp,
+			     GFP_ATOMIC);
 	return NOTIFY_DONE;
 }
 
-- 
GitLab


From 9ec9a975ea374f8290265ad1e4447df73ffb0ecc Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 15 Sep 2021 16:46:39 +0200
Subject: [PATCH 0287/4878] netfilter: nf_nat_masquerade: defer conntrack walk
 to work queue

[ Upstream commit 7970a19b71044bf4dc2c1becc200275bdf1884d4 ]

The ipv4 and device notifiers are called with RTNL mutex held.
The table walk can take some time, better not block other RTNL users.

'ip a' has been reported to block for up to 20 seconds when conntrack table
has many entries and device down events are frequent (e.g., PPP).

Reported-and-tested-by: Martin Zaharinov <micron10@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_nat_masquerade.c | 50 +++++++++++++++----------------
 1 file changed, 24 insertions(+), 26 deletions(-)

diff --git a/net/netfilter/nf_nat_masquerade.c b/net/netfilter/nf_nat_masquerade.c
index 415919a6ac1ad..acd73f717a088 100644
--- a/net/netfilter/nf_nat_masquerade.c
+++ b/net/netfilter/nf_nat_masquerade.c
@@ -131,13 +131,14 @@ static void nf_nat_masq_schedule(struct net *net, union nf_inet_addr *addr,
 	put_net(net);
 }
 
-static int device_cmp(struct nf_conn *i, void *ifindex)
+static int device_cmp(struct nf_conn *i, void *arg)
 {
 	const struct nf_conn_nat *nat = nfct_nat(i);
+	const struct masq_dev_work *w = arg;
 
 	if (!nat)
 		return 0;
-	return nat->masq_index == (int)(long)ifindex;
+	return nat->masq_index == w->ifindex;
 }
 
 static int masq_device_event(struct notifier_block *this,
@@ -153,8 +154,8 @@ static int masq_device_event(struct notifier_block *this,
 		 * and forget them.
 		 */
 
-		nf_ct_iterate_cleanup_net(net, device_cmp,
-					  (void *)(long)dev->ifindex, 0, 0);
+		nf_nat_masq_schedule(net, NULL, dev->ifindex,
+				     device_cmp, GFP_KERNEL);
 	}
 
 	return NOTIFY_DONE;
@@ -162,35 +163,45 @@ static int masq_device_event(struct notifier_block *this,
 
 static int inet_cmp(struct nf_conn *ct, void *ptr)
 {
-	struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
-	struct net_device *dev = ifa->ifa_dev->dev;
 	struct nf_conntrack_tuple *tuple;
+	struct masq_dev_work *w = ptr;
 
-	if (!device_cmp(ct, (void *)(long)dev->ifindex))
+	if (!device_cmp(ct, ptr))
 		return 0;
 
 	tuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
 
-	return ifa->ifa_address == tuple->dst.u3.ip;
+	return nf_inet_addr_cmp(&w->addr, &tuple->dst.u3);
 }
 
 static int masq_inet_event(struct notifier_block *this,
 			   unsigned long event,
 			   void *ptr)
 {
-	struct in_device *idev = ((struct in_ifaddr *)ptr)->ifa_dev;
-	struct net *net = dev_net(idev->dev);
+	const struct in_ifaddr *ifa = ptr;
+	const struct in_device *idev;
+	const struct net_device *dev;
+	union nf_inet_addr addr;
+
+	if (event != NETDEV_DOWN)
+		return NOTIFY_DONE;
 
 	/* The masq_dev_notifier will catch the case of the device going
 	 * down.  So if the inetdev is dead and being destroyed we have
 	 * no work to do.  Otherwise this is an individual address removal
 	 * and we have to perform the flush.
 	 */
+	idev = ifa->ifa_dev;
 	if (idev->dead)
 		return NOTIFY_DONE;
 
-	if (event == NETDEV_DOWN)
-		nf_ct_iterate_cleanup_net(net, inet_cmp, ptr, 0, 0);
+	memset(&addr, 0, sizeof(addr));
+
+	addr.ip = ifa->ifa_address;
+
+	dev = idev->dev;
+	nf_nat_masq_schedule(dev_net(idev->dev), &addr, dev->ifindex,
+			     inet_cmp, GFP_KERNEL);
 
 	return NOTIFY_DONE;
 }
@@ -253,19 +264,6 @@ nf_nat_masquerade_ipv6(struct sk_buff *skb, const struct nf_nat_range2 *range,
 }
 EXPORT_SYMBOL_GPL(nf_nat_masquerade_ipv6);
 
-static int inet6_cmp(struct nf_conn *ct, void *work)
-{
-	struct masq_dev_work *w = (struct masq_dev_work *)work;
-	struct nf_conntrack_tuple *tuple;
-
-	if (!device_cmp(ct, (void *)(long)w->ifindex))
-		return 0;
-
-	tuple = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-
-	return nf_inet_addr_cmp(&w->addr, &tuple->dst.u3);
-}
-
 /* atomic notifier; can't call nf_ct_iterate_cleanup_net (it can sleep).
  *
  * Defer it to the system workqueue.
@@ -289,7 +287,7 @@ static int masq_inet6_event(struct notifier_block *this,
 
 	addr.in6 = ifa->addr;
 
-	nf_nat_masq_schedule(dev_net(dev), &addr, dev->ifindex, inet6_cmp,
+	nf_nat_masq_schedule(dev_net(dev), &addr, dev->ifindex, inet_cmp,
 			     GFP_ATOMIC);
 	return NOTIFY_DONE;
 }
-- 
GitLab


From 977aee58142a19ccf9ef8fe56f1430e2ef99931f Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Fri, 27 Aug 2021 22:42:30 +0800
Subject: [PATCH 0288/4878] mac80211: Drop frames from invalid MAC address in
 ad-hoc mode

[ Upstream commit a6555f844549cd190eb060daef595f94d3de1582 ]

WARNING: CPU: 1 PID: 9 at net/mac80211/sta_info.c:554
sta_info_insert_rcu+0x121/0x12a0
Modules linked in:
CPU: 1 PID: 9 Comm: kworker/u8:1 Not tainted 5.14.0-rc7+ #253
Workqueue: phy3 ieee80211_iface_work
RIP: 0010:sta_info_insert_rcu+0x121/0x12a0
...
Call Trace:
 ieee80211_ibss_finish_sta+0xbc/0x170
 ieee80211_ibss_work+0x13f/0x7d0
 ieee80211_iface_work+0x37a/0x500
 process_one_work+0x357/0x850
 worker_thread+0x41/0x4d0

If an Ad-Hoc node receives packets with invalid source MAC address,
it hits a WARN_ON in sta_info_insert_check(), this can spam the log.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20210827144230.39944-1-yuehaibing@huawei.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 38b5695c2a0c8..b7979c0bffd0f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4064,7 +4064,8 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
 		if (!bssid)
 			return false;
 		if (ether_addr_equal(sdata->vif.addr, hdr->addr2) ||
-		    ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2))
+		    ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2) ||
+		    !is_valid_ether_addr(hdr->addr2))
 			return false;
 		if (ieee80211_is_beacon(hdr->frame_control))
 			return true;
-- 
GitLab


From 194e8a4f0acd8a9d2915fd5fb8249e2797393078 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 25 Jul 2021 17:19:00 +0000
Subject: [PATCH 0289/4878] m68k: Handle arrivals of multiple signals correctly

[ Upstream commit 4bb0bd81ce5e97092dfda6a106d414b703ec0ee8 ]

When we have several pending signals, have entered with the kernel
with large exception frame *and* have already built at least one
sigframe, regs->stkadj is going to be non-zero and regs->format/sr/pc
are going to be junk - the real values are in shifted exception stack
frame we'd built when putting together the first sigframe.

If that happens, subsequent sigframes are going to be garbage.
Not hard to fix - just need to find the "adjusted" frame first
and look for format/vector/sr/pc in it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Reviewed-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Link: https://lore.kernel.org/r/YP2dBIAPTaVvHiZ6@zeniv-ca.linux.org.uk
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/m68k/kernel/signal.c | 88 +++++++++++++++++++--------------------
 1 file changed, 42 insertions(+), 46 deletions(-)

diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index 46f91e0f6a082..fd916844a683f 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -447,7 +447,7 @@ static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs)
 
 	if (CPU_IS_060 ? sc->sc_fpstate[2] : sc->sc_fpstate[0]) {
 		fpu_version = sc->sc_fpstate[0];
-		if (CPU_IS_020_OR_030 &&
+		if (CPU_IS_020_OR_030 && !regs->stkadj &&
 		    regs->vector >= (VEC_FPBRUC * 4) &&
 		    regs->vector <= (VEC_FPNAN * 4)) {
 			/* Clear pending exception in 68882 idle frame */
@@ -510,7 +510,7 @@ static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *
 		if (!(CPU_IS_060 || CPU_IS_COLDFIRE))
 			context_size = fpstate[1];
 		fpu_version = fpstate[0];
-		if (CPU_IS_020_OR_030 &&
+		if (CPU_IS_020_OR_030 && !regs->stkadj &&
 		    regs->vector >= (VEC_FPBRUC * 4) &&
 		    regs->vector <= (VEC_FPNAN * 4)) {
 			/* Clear pending exception in 68882 idle frame */
@@ -828,18 +828,24 @@ badframe:
 	return 0;
 }
 
+static inline struct pt_regs *rte_regs(struct pt_regs *regs)
+{
+	return (void *)regs + regs->stkadj;
+}
+
 static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
 			     unsigned long mask)
 {
+	struct pt_regs *tregs = rte_regs(regs);
 	sc->sc_mask = mask;
 	sc->sc_usp = rdusp();
 	sc->sc_d0 = regs->d0;
 	sc->sc_d1 = regs->d1;
 	sc->sc_a0 = regs->a0;
 	sc->sc_a1 = regs->a1;
-	sc->sc_sr = regs->sr;
-	sc->sc_pc = regs->pc;
-	sc->sc_formatvec = regs->format << 12 | regs->vector;
+	sc->sc_sr = tregs->sr;
+	sc->sc_pc = tregs->pc;
+	sc->sc_formatvec = tregs->format << 12 | tregs->vector;
 	save_a5_state(sc, regs);
 	save_fpu_state(sc, regs);
 }
@@ -847,6 +853,7 @@ static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
 static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs)
 {
 	struct switch_stack *sw = (struct switch_stack *)regs - 1;
+	struct pt_regs *tregs = rte_regs(regs);
 	greg_t __user *gregs = uc->uc_mcontext.gregs;
 	int err = 0;
 
@@ -867,9 +874,9 @@ static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *
 	err |= __put_user(sw->a5, &gregs[13]);
 	err |= __put_user(sw->a6, &gregs[14]);
 	err |= __put_user(rdusp(), &gregs[15]);
-	err |= __put_user(regs->pc, &gregs[16]);
-	err |= __put_user(regs->sr, &gregs[17]);
-	err |= __put_user((regs->format << 12) | regs->vector, &uc->uc_formatvec);
+	err |= __put_user(tregs->pc, &gregs[16]);
+	err |= __put_user(tregs->sr, &gregs[17]);
+	err |= __put_user((tregs->format << 12) | tregs->vector, &uc->uc_formatvec);
 	err |= rt_save_fpu_state(uc, regs);
 	return err;
 }
@@ -886,13 +893,14 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
 			struct pt_regs *regs)
 {
 	struct sigframe __user *frame;
-	int fsize = frame_extra_sizes(regs->format);
+	struct pt_regs *tregs = rte_regs(regs);
+	int fsize = frame_extra_sizes(tregs->format);
 	struct sigcontext context;
 	int err = 0, sig = ksig->sig;
 
 	if (fsize < 0) {
 		pr_debug("setup_frame: Unknown frame format %#x\n",
-			 regs->format);
+			 tregs->format);
 		return -EFAULT;
 	}
 
@@ -903,7 +911,7 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
 
 	err |= __put_user(sig, &frame->sig);
 
-	err |= __put_user(regs->vector, &frame->code);
+	err |= __put_user(tregs->vector, &frame->code);
 	err |= __put_user(&frame->sc, &frame->psc);
 
 	if (_NSIG_WORDS > 1)
@@ -929,34 +937,28 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
 
 	push_cache ((unsigned long) &frame->retcode);
 
-	/*
-	 * Set up registers for signal handler.  All the state we are about
-	 * to destroy is successfully copied to sigframe.
-	 */
-	wrusp ((unsigned long) frame);
-	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
-	adjustformat(regs);
-
 	/*
 	 * This is subtle; if we build more than one sigframe, all but the
 	 * first one will see frame format 0 and have fsize == 0, so we won't
 	 * screw stkadj.
 	 */
-	if (fsize)
+	if (fsize) {
 		regs->stkadj = fsize;
-
-	/* Prepare to skip over the extra stuff in the exception frame.  */
-	if (regs->stkadj) {
-		struct pt_regs *tregs =
-			(struct pt_regs *)((ulong)regs + regs->stkadj);
+		tregs = rte_regs(regs);
 		pr_debug("Performing stackadjust=%04lx\n", regs->stkadj);
-		/* This must be copied with decreasing addresses to
-                   handle overlaps.  */
 		tregs->vector = 0;
 		tregs->format = 0;
-		tregs->pc = regs->pc;
 		tregs->sr = regs->sr;
 	}
+
+	/*
+	 * Set up registers for signal handler.  All the state we are about
+	 * to destroy is successfully copied to sigframe.
+	 */
+	wrusp ((unsigned long) frame);
+	tregs->pc = (unsigned long) ksig->ka.sa.sa_handler;
+	adjustformat(regs);
+
 	return 0;
 }
 
@@ -964,7 +966,8 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
 			   struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
-	int fsize = frame_extra_sizes(regs->format);
+	struct pt_regs *tregs = rte_regs(regs);
+	int fsize = frame_extra_sizes(tregs->format);
 	int err = 0, sig = ksig->sig;
 
 	if (fsize < 0) {
@@ -1014,34 +1017,27 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
 
 	push_cache ((unsigned long) &frame->retcode);
 
-	/*
-	 * Set up registers for signal handler.  All the state we are about
-	 * to destroy is successfully copied to sigframe.
-	 */
-	wrusp ((unsigned long) frame);
-	regs->pc = (unsigned long) ksig->ka.sa.sa_handler;
-	adjustformat(regs);
-
 	/*
 	 * This is subtle; if we build more than one sigframe, all but the
 	 * first one will see frame format 0 and have fsize == 0, so we won't
 	 * screw stkadj.
 	 */
-	if (fsize)
+	if (fsize) {
 		regs->stkadj = fsize;
-
-	/* Prepare to skip over the extra stuff in the exception frame.  */
-	if (regs->stkadj) {
-		struct pt_regs *tregs =
-			(struct pt_regs *)((ulong)regs + regs->stkadj);
+		tregs = rte_regs(regs);
 		pr_debug("Performing stackadjust=%04lx\n", regs->stkadj);
-		/* This must be copied with decreasing addresses to
-                   handle overlaps.  */
 		tregs->vector = 0;
 		tregs->format = 0;
-		tregs->pc = regs->pc;
 		tregs->sr = regs->sr;
 	}
+
+	/*
+	 * Set up registers for signal handler.  All the state we are about
+	 * to destroy is successfully copied to sigframe.
+	 */
+	wrusp ((unsigned long) frame);
+	tregs->pc = (unsigned long) ksig->ka.sa.sa_handler;
+	adjustformat(regs);
 	return 0;
 }
 
-- 
GitLab


From 3d68c7b0ab5b5b9fd7a2a8b13114ac0336e23a30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Thu, 23 Sep 2021 22:11:13 +0200
Subject: [PATCH 0290/4878] hwmon: (ltc2947) Properly handle errors when
 looking for the external clock
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 6f7d70467121f790b36af2d84bc02b5c236bf5e6 ]

The return value of devm_clk_get should in general be propagated to
upper layer. In this case the clk is optional, use the appropriate
wrapper instead of interpreting all errors as "The optional clk is not
available".

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210923201113.398932-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/ltc2947-core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/ltc2947-core.c b/drivers/hwmon/ltc2947-core.c
index bb3f7749a0b00..5423466de697a 100644
--- a/drivers/hwmon/ltc2947-core.c
+++ b/drivers/hwmon/ltc2947-core.c
@@ -989,8 +989,12 @@ static int ltc2947_setup(struct ltc2947_data *st)
 		return ret;
 
 	/* check external clock presence */
-	extclk = devm_clk_get(st->dev, NULL);
-	if (!IS_ERR(extclk)) {
+	extclk = devm_clk_get_optional(st->dev, NULL);
+	if (IS_ERR(extclk))
+		return dev_err_probe(st->dev, PTR_ERR(extclk),
+				     "Failed to get external clock\n");
+
+	if (extclk) {
 		unsigned long rate_hz;
 		u8 pre = 0, div, tbctl;
 		u64 aux;
-- 
GitLab


From bda06aff03a1fe0530a8245ef0988e5ba01ea915 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E8=B4=87?= <yun.wang@linux.alibaba.com>
Date: Fri, 24 Sep 2021 10:35:58 +0800
Subject: [PATCH 0291/4878] net: prevent user from passing illegal stab size

[ Upstream commit b193e15ac69d56f35e1d8e2b5d16cbd47764d053 ]

We observed below report when playing with netlink sock:

  UBSAN: shift-out-of-bounds in net/sched/sch_api.c:580:10
  shift exponent 249 is too large for 32-bit type
  CPU: 0 PID: 685 Comm: a.out Not tainted
  Call Trace:
   dump_stack_lvl+0x8d/0xcf
   ubsan_epilogue+0xa/0x4e
   __ubsan_handle_shift_out_of_bounds+0x161/0x182
   __qdisc_calculate_pkt_len+0xf0/0x190
   __dev_queue_xmit+0x2ed/0x15b0

it seems like kernel won't check the stab log value passing from
user, and will use the insane value later to calculate pkt_len.

This patch just add a check on the size/cell_log to avoid insane
calculation.

Reported-by: Abaci <abaci@linux.alibaba.com>
Signed-off-by: Michael Wang <yun.wang@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/pkt_sched.h | 1 +
 net/sched/sch_api.c     | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 2be90a54a4044..7e58b44705705 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -11,6 +11,7 @@
 #include <uapi/linux/pkt_sched.h>
 
 #define DEFAULT_TX_QUEUE_LEN	1000
+#define STAB_SIZE_LOG_MAX	30
 
 struct qdisc_walker {
 	int	stop;
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 54a8c363bcdda..7b24582a8a164 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -513,6 +513,12 @@ static struct qdisc_size_table *qdisc_get_stab(struct nlattr *opt,
 		return stab;
 	}
 
+	if (s->size_log > STAB_SIZE_LOG_MAX ||
+	    s->cell_log > STAB_SIZE_LOG_MAX) {
+		NL_SET_ERR_MSG(extack, "Invalid logarithmic size of size table");
+		return ERR_PTR(-EINVAL);
+	}
+
 	stab = kmalloc(sizeof(*stab) + tsize * sizeof(u16), GFP_KERNEL);
 	if (!stab)
 		return ERR_PTR(-ENOMEM);
-- 
GitLab


From 42c871d38e3d3c2272ead31a846ad58eef66d690 Mon Sep 17 00:00:00 2001
From: MichelleJin <shjy180909@gmail.com>
Date: Mon, 27 Sep 2021 03:34:57 +0000
Subject: [PATCH 0292/4878] mac80211: check return value of rhashtable_init

[ Upstream commit 111461d573741c17eafad029ac93474fa9adcce0 ]

When rhashtable_init() fails, it returns -EINVAL.
However, since error return value of rhashtable_init is not checked,
it can cause use of uninitialized pointers.
So, fix unhandled errors of rhashtable_init.

Signed-off-by: MichelleJin <shjy180909@gmail.com>
Link: https://lore.kernel.org/r/20210927033457.1020967-4-shjy180909@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/mesh_pathtbl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 620ecf922408b..870c8eafef929 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -60,7 +60,10 @@ static struct mesh_table *mesh_table_alloc(void)
 	atomic_set(&newtbl->entries,  0);
 	spin_lock_init(&newtbl->gates_lock);
 	spin_lock_init(&newtbl->walk_lock);
-	rhashtable_init(&newtbl->rhead, &mesh_rht_params);
+	if (rhashtable_init(&newtbl->rhead, &mesh_rht_params)) {
+		kfree(newtbl);
+		return NULL;
+	}
 
 	return newtbl;
 }
-- 
GitLab


From db868b45324d0473db165f43a9d3730413993080 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 27 Sep 2021 11:26:21 -0700
Subject: [PATCH 0293/4878] vboxfs: fix broken legacy mount signature checking

[ Upstream commit 9b3b353ef330e20bc2d99bf3165cc044cff26a09 ]

Commit 9d682ea6bcc7 ("vboxsf: Fix the check for the old binary
mount-arguments struct") was meant to fix a build error due to sign
mismatch in 'char' and the use of character constants, but it just moved
the error elsewhere, in that on some architectures characters and signed
and on others they are unsigned, and that's just how the C standard
works.

The proper fix is a simple "don't do that then".  The code was just
being silly and odd, and it should never have cared about signed vs
unsigned characters in the first place, since what it is testing is not
four "characters", but four bytes.

And the way to compare four bytes is by using "memcmp()".

Which compilers will know to just turn into a single 32-bit compare with
a constant, as long as you don't have crazy debug options enabled.

Link: https://lore.kernel.org/lkml/20210927094123.576521-1-arnd@kernel.org/
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/vboxsf/super.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/fs/vboxsf/super.c b/fs/vboxsf/super.c
index d7816c01a4f62..c578e772cbd58 100644
--- a/fs/vboxsf/super.c
+++ b/fs/vboxsf/super.c
@@ -21,10 +21,7 @@
 
 #define VBOXSF_SUPER_MAGIC 0x786f4256 /* 'VBox' little endian */
 
-#define VBSF_MOUNT_SIGNATURE_BYTE_0 ('\000')
-#define VBSF_MOUNT_SIGNATURE_BYTE_1 ('\377')
-#define VBSF_MOUNT_SIGNATURE_BYTE_2 ('\376')
-#define VBSF_MOUNT_SIGNATURE_BYTE_3 ('\375')
+static const unsigned char VBSF_MOUNT_SIGNATURE[4] = "\000\377\376\375";
 
 static int follow_symlinks;
 module_param(follow_symlinks, int, 0444);
@@ -386,12 +383,7 @@ fail_nomem:
 
 static int vboxsf_parse_monolithic(struct fs_context *fc, void *data)
 {
-	unsigned char *options = data;
-
-	if (options && options[0] == VBSF_MOUNT_SIGNATURE_BYTE_0 &&
-		       options[1] == VBSF_MOUNT_SIGNATURE_BYTE_1 &&
-		       options[2] == VBSF_MOUNT_SIGNATURE_BYTE_2 &&
-		       options[3] == VBSF_MOUNT_SIGNATURE_BYTE_3) {
+	if (data && !memcmp(data, VBSF_MOUNT_SIGNATURE, 4)) {
 		vbg_err("vboxsf: Old binary mount data not supported, remove obsolete mount.vboxsf and/or update your VBoxService.\n");
 		return -EINVAL;
 	}
-- 
GitLab


From a5ba615fbeb30e9c9df62e25997c5d2011c1a400 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 27 Sep 2021 14:48:23 -0700
Subject: [PATCH 0294/4878] net: sun: SUNVNET_COMMON should depend on INET

[ Upstream commit 103bde372f084206c6972be543ecc247ebbff9f3 ]

When CONFIG_INET is not set, there are failing references to IPv4
functions, so make this driver depend on INET.

Fixes these build errors:

sparc64-linux-ld: drivers/net/ethernet/sun/sunvnet_common.o: in function `sunvnet_start_xmit_common':
sunvnet_common.c:(.text+0x1a68): undefined reference to `__icmp_send'
sparc64-linux-ld: drivers/net/ethernet/sun/sunvnet_common.o: in function `sunvnet_poll_common':
sunvnet_common.c:(.text+0x358c): undefined reference to `ip_send_check'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Aaron Young <aaron.young@oracle.com>
Cc: Rashmi Narasimhan <rashmi.narasimhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sun/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/sun/Kconfig b/drivers/net/ethernet/sun/Kconfig
index 309de38a75304..b0d3f9a2950c0 100644
--- a/drivers/net/ethernet/sun/Kconfig
+++ b/drivers/net/ethernet/sun/Kconfig
@@ -73,6 +73,7 @@ config CASSINI
 config SUNVNET_COMMON
 	tristate "Common routines to support Sun Virtual Networking"
 	depends on SUN_LDOMS
+	depends on INET
 	default m
 
 config SUNVNET
-- 
GitLab


From 621ddffb70db824eabd63d18ac635180fe9500f9 Mon Sep 17 00:00:00 2001
From: Leslie Shi <Yuliang.Shi@amd.com>
Date: Thu, 23 Sep 2021 16:05:31 +0800
Subject: [PATCH 0295/4878] drm/amdgpu: fix gart.bo pin_count leak
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 66805763a97f8f7bdf742fc0851d85c02ed9411f ]

gmc_v{9,10}_0_gart_disable() isn't called matched with
correspoding gart_enbale function in SRIOV case. This will
lead to gart.bo pin_count leak on driver unload.

Cc: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Leslie Shi <Yuliang.Shi@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 3 ++-
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index dbc8b76b9b78e..150fa5258fb6f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -1018,6 +1018,8 @@ static int gmc_v10_0_hw_fini(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	gmc_v10_0_gart_disable(adev);
+
 	if (amdgpu_sriov_vf(adev)) {
 		/* full access mode, so don't touch any GMC register */
 		DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
@@ -1026,7 +1028,6 @@ static int gmc_v10_0_hw_fini(void *handle)
 
 	amdgpu_irq_put(adev, &adev->gmc.ecc_irq, 0);
 	amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
-	gmc_v10_0_gart_disable(adev);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 3ebbddb63705c..3a864041968f6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1677,6 +1677,8 @@ static int gmc_v9_0_hw_fini(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	gmc_v9_0_gart_disable(adev);
+
 	if (amdgpu_sriov_vf(adev)) {
 		/* full access mode, so don't touch any GMC register */
 		DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
@@ -1685,7 +1687,6 @@ static int gmc_v9_0_hw_fini(void *handle)
 
 	amdgpu_irq_put(adev, &adev->gmc.ecc_irq, 0);
 	amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
-	gmc_v9_0_gart_disable(adev);
 
 	return 0;
 }
-- 
GitLab


From d993d1e1c4113cebe32cf56f3b4c5b9fb405274c Mon Sep 17 00:00:00 2001
From: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Date: Fri, 24 Sep 2021 17:51:53 +0800
Subject: [PATCH 0296/4878] scsi: ses: Fix unsigned comparison with less than
 zero

[ Upstream commit dd689ed5aa905daf4ba4c99319a52aad6ea0a796 ]

Fix the following coccicheck warning:

./drivers/scsi/ses.c:137:10-16: WARNING: Unsigned expression compared
with zero: result > 0.

Link: https://lore.kernel.org/r/1632477113-90378-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ses.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 43e682297fd5f..0a1734f34587d 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -118,7 +118,7 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
 static int ses_send_diag(struct scsi_device *sdev, int page_code,
 			 void *buf, int bufflen)
 {
-	u32 result;
+	int result;
 
 	unsigned char cmd[] = {
 		SEND_DIAGNOSTIC,
-- 
GitLab


From 57c7ca3d5592d153dd5459894ffb63f2a40ac17c Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Sat, 25 Sep 2021 00:03:30 +0100
Subject: [PATCH 0297/4878] scsi: virtio_scsi: Fix spelling mistake "Unsupport"
 -> "Unsupported"

[ Upstream commit cced4c0ec7c06f5230a2958907a409c849762293 ]

There are a couple of spelling mistakes in pr_info and pr_err messages.
Fix them.

Link: https://lore.kernel.org/r/20210924230330.143785-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/virtio_scsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index b9c86a7e3b97d..6dac58ae61206 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -302,7 +302,7 @@ static void virtscsi_handle_transport_reset(struct virtio_scsi *vscsi,
 		}
 		break;
 	default:
-		pr_info("Unsupport virtio scsi event reason %x\n", event->reason);
+		pr_info("Unsupported virtio scsi event reason %x\n", event->reason);
 	}
 }
 
@@ -394,7 +394,7 @@ static void virtscsi_handle_event(struct work_struct *work)
 		virtscsi_handle_param_change(vscsi, event);
 		break;
 	default:
-		pr_err("Unsupport virtio scsi event %x\n", event->event);
+		pr_err("Unsupported virtio scsi event %x\n", event->event);
 	}
 	virtscsi_kick_event(vscsi, event_node);
 }
-- 
GitLab


From bdae2a08343613782be6c5be97b6c3a1ebccbfff Mon Sep 17 00:00:00 2001
From: Song Liu <songliubraving@fb.com>
Date: Wed, 29 Sep 2021 12:43:13 -0700
Subject: [PATCH 0298/4878] perf/core: fix userpage->time_enabled of inactive
 events

[ Upstream commit f792565326825ed806626da50c6f9a928f1079c1 ]

Users of rdpmc rely on the mmapped user page to calculate accurate
time_enabled. Currently, userpage->time_enabled is only updated when the
event is added to the pmu. As a result, inactive event (due to counter
multiplexing) does not have accurate userpage->time_enabled. This can
be reproduced with something like:

   /* open 20 task perf_event "cycles", to create multiplexing */

   fd = perf_event_open();  /* open task perf_event "cycles" */
   userpage = mmap(fd);     /* use mmap and rdmpc */

   while (true) {
     time_enabled_mmap = xxx; /* use logic in perf_event_mmap_page */
     time_enabled_read = read(fd).time_enabled;
     if (time_enabled_mmap > time_enabled_read)
         BUG();
   }

Fix this by updating userpage for inactive events in merge_sched_in.

Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reported-and-tested-by: Lucian Grijincu <lucian@fb.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210929194313.2398474-1-songliubraving@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/perf_event.h |  4 +++-
 kernel/events/core.c       | 34 ++++++++++++++++++++++++++++++----
 2 files changed, 33 insertions(+), 5 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 072ac6c1ef2b6..c095e713cf08f 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -682,7 +682,9 @@ struct perf_event {
 	/*
 	 * timestamp shadows the actual context timing but it can
 	 * be safely used in NMI interrupt context. It reflects the
-	 * context time as it was when the event was last scheduled in.
+	 * context time as it was when the event was last scheduled in,
+	 * or when ctx_sched_in failed to schedule the event because we
+	 * run out of PMC.
 	 *
 	 * ctx_time already accounts for ctx->timestamp. Therefore to
 	 * compute ctx_time for a sample, simply add perf_clock().
diff --git a/kernel/events/core.c b/kernel/events/core.c
index c677f934353af..c811519261710 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -3695,6 +3695,29 @@ static noinline int visit_groups_merge(struct perf_cpu_context *cpuctx,
 	return 0;
 }
 
+static inline bool event_update_userpage(struct perf_event *event)
+{
+	if (likely(!atomic_read(&event->mmap_count)))
+		return false;
+
+	perf_event_update_time(event);
+	perf_set_shadow_time(event, event->ctx);
+	perf_event_update_userpage(event);
+
+	return true;
+}
+
+static inline void group_update_userpage(struct perf_event *group_event)
+{
+	struct perf_event *event;
+
+	if (!event_update_userpage(group_event))
+		return;
+
+	for_each_sibling_event(event, group_event)
+		event_update_userpage(event);
+}
+
 static int merge_sched_in(struct perf_event *event, void *data)
 {
 	struct perf_event_context *ctx = event->ctx;
@@ -3713,14 +3736,15 @@ static int merge_sched_in(struct perf_event *event, void *data)
 	}
 
 	if (event->state == PERF_EVENT_STATE_INACTIVE) {
+		*can_add_hw = 0;
 		if (event->attr.pinned) {
 			perf_cgroup_event_disable(event, ctx);
 			perf_event_set_state(event, PERF_EVENT_STATE_ERROR);
+		} else {
+			ctx->rotate_necessary = 1;
+			perf_mux_hrtimer_restart(cpuctx);
+			group_update_userpage(event);
 		}
-
-		*can_add_hw = 0;
-		ctx->rotate_necessary = 1;
-		perf_mux_hrtimer_restart(cpuctx);
 	}
 
 	return 0;
@@ -6239,6 +6263,8 @@ accounting:
 
 		ring_buffer_attach(event, rb);
 
+		perf_event_update_time(event);
+		perf_set_shadow_time(event, event->ctx);
 		perf_event_init_userpage(event);
 		perf_event_update_userpage(event);
 	} else {
-- 
GitLab


From bb893f075431e97dd72cde0721957a73d26578a8 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 20 Sep 2021 15:31:11 +0200
Subject: [PATCH 0299/4878] sched: Always inline is_percpu_thread()

[ Upstream commit 83d40a61046f73103b4e5d8f1310261487ff63b0 ]

  vmlinux.o: warning: objtool: check_preemption_disabled()+0x81: call to is_percpu_thread() leaves .noinstr.text section

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210928084218.063371959@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sched.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 29c7ccd5ae42e..b85b26d9ccefe 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1589,7 +1589,7 @@ extern struct pid *cad_pid;
 #define tsk_used_math(p)			((p)->flags & PF_USED_MATH)
 #define used_math()				tsk_used_math(current)
 
-static inline bool is_percpu_thread(void)
+static __always_inline bool is_percpu_thread(void)
 {
 #ifdef CONFIG_SMP
 	return (current->flags & PF_NO_SETAFFINITY) &&
-- 
GitLab


From 42b49f012b6a8c5b012a666971dab6ce38725dff Mon Sep 17 00:00:00 2001
From: Brandon Wyman <bjwyman@gmail.com>
Date: Tue, 28 Sep 2021 20:50:51 +0000
Subject: [PATCH 0300/4878] hwmon: (pmbus/ibm-cffps) max_power_out swap changes

[ Upstream commit f067d5585cda2de1e47dde914a8a4f151659e0ad ]

The bytes for max_power_out from the ibm-cffps devices differ in byte
order for some power supplies.

The Witherspoon power supply returns the bytes in MSB/LSB order.

The Rainier power supply returns the bytes in LSB/MSB order.

The Witherspoon power supply uses version cffps1. The Rainier power
supply should use version cffps2. If version is cffps1, swap the bytes
before output to max_power_out.

Tested:
    Witherspoon before: 3148. Witherspoon after: 3148.
    Rainier before: 53255. Rainier after: 2000.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210928205051.1222815-1-bjwyman@gmail.com
[groeck: Replaced yoda programming]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pmbus/ibm-cffps.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/pmbus/ibm-cffps.c b/drivers/hwmon/pmbus/ibm-cffps.c
index 79bc2032dcb2a..da261d32450d0 100644
--- a/drivers/hwmon/pmbus/ibm-cffps.c
+++ b/drivers/hwmon/pmbus/ibm-cffps.c
@@ -171,8 +171,14 @@ static ssize_t ibm_cffps_debugfs_read(struct file *file, char __user *buf,
 		cmd = CFFPS_SN_CMD;
 		break;
 	case CFFPS_DEBUGFS_MAX_POWER_OUT:
-		rc = i2c_smbus_read_word_swapped(psu->client,
-						 CFFPS_MAX_POWER_OUT_CMD);
+		if (psu->version == cffps1) {
+			rc = i2c_smbus_read_word_swapped(psu->client,
+					CFFPS_MAX_POWER_OUT_CMD);
+		} else {
+			rc = i2c_smbus_read_word_data(psu->client,
+					CFFPS_MAX_POWER_OUT_CMD);
+		}
+
 		if (rc < 0)
 			return rc;
 
-- 
GitLab


From 77434fe5a077f05f0851931d6a71d1098b6004f8 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 17 Oct 2021 10:43:34 +0200
Subject: [PATCH 0301/4878] Linux 5.10.74

Link: https://lore.kernel.org/r/20211014145207.979449962@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 3f62cea9afc0e..84d540aed24c9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 73
+SUBLEVEL = 74
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 8ad987a3378ad2a1af8c591c93d6dd380c5490e9 Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Tue, 12 Oct 2021 20:30:45 +0800
Subject: [PATCH 0302/4878] FROMGIT: f2fs: fix to use WHINT_MODE

Since active_logs can be set to 2 or 4 or NR_CURSEG_PERSIST_TYPE(6),
it cannot be set to NR_CURSEG_TYPE(8).
That is, whint_mode is always off.

Therefore, the condition is changed from NR_CURSEG_TYPE to
NR_CURSEG_PERSIST_TYPE.

Bug: 202812742
Cc: Chao Yu <chao@kernel.org>
Fixes: d0b9e42ab615 (f2fs: introduce inmem curseg)
Reported-by: tanghuan <tanghuan@vivo.com>
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit 011e0868e0cf1237675b22e36fffa958fb08f46e
https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git/ dev)

Change-Id: Ic2a2b055e1f37f6263d8243527e83fe6bd4f7070
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fa732d012e99b..6ee09093ee75e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1292,7 +1292,7 @@ default_check:
 	/* Not pass down write hints if the number of active logs is lesser
 	 * than NR_CURSEG_PERSIST_TYPE.
 	 */
-	if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
+	if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_PERSIST_TYPE)
 		F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
 
 	if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
-- 
GitLab


From 58c6b39cae5487929c26054608a38a05a0b9fb2c Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 22 Sep 2021 12:10:59 +0300
Subject: [PATCH 0303/4878] FROMGIT: scsi: ufs: Fix task management completion

The UFS driver uses blk_mq_tagset_busy_iter() when identifying task
management requests to complete, however blk_mq_tagset_busy_iter()
doesn't work.

blk_mq_tagset_busy_iter() only iterates requests dispatched by the block
layer. That appears as if it might have started since commit 37f4a24c2469a1
("blk-mq: centralise related handling into blk_mq_get_driver_tag") which
removed 'data->hctx->tags->rqs[rq->tag] = rq' from blk_mq_rq_ctx_init()
which gets called:

	blk_get_request
		blk_mq_alloc_request
			__blk_mq_alloc_request
				blk_mq_rq_ctx_init

Since UFS task management requests are not dispatched by the block
layer, hctx->tags->rqs[rq->tag] remains NULL,  and since
blk_mq_tagset_busy_iter() relies on finding requests using
hctx->tags->rqs[rq->tag], UFS task management requests are never found by
blk_mq_tagset_busy_iter().

By using blk_mq_tagset_busy_iter(), the UFS driver was relying on internal
details of the block layer, which was fragile and subsequently got
broken. Fix by removing the use of blk_mq_tagset_busy_iter() and having
the driver keep track of task management requests.

Fixes: 1235fc569e0bf5 ("scsi: ufs: core: Fix task management request completion timeout")
Fixes: 69a6c269c097d7 ("scsi: ufs: Use blk_{get,put}_request() to allocate and free TMFs")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Bug: 200291871
(cherry picked from commit f5ef336fd2e4c36dedae4e7ca66cf5349d6fda62 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Change-Id: I4e11f40c7371fd66b3a6b570d06c956b113df142
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 52 +++++++++++++++++----------------------
 drivers/scsi/ufs/ufshcd.h |  1 +
 2 files changed, 23 insertions(+), 30 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index eac2d91c349de..b683c18674632 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6348,27 +6348,6 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba, u32 intr_status)
 	return retval;
 }
 
-struct ctm_info {
-	struct ufs_hba	*hba;
-	unsigned long	pending;
-	unsigned int	ncpl;
-};
-
-static bool ufshcd_compl_tm(struct request *req, void *priv, bool reserved)
-{
-	struct ctm_info *const ci = priv;
-	struct completion *c;
-
-	WARN_ON_ONCE(reserved);
-	if (test_bit(req->tag, &ci->pending))
-		return true;
-	ci->ncpl++;
-	c = req->end_io_data;
-	if (c)
-		complete(c);
-	return true;
-}
-
 /**
  * ufshcd_tmc_handler - handle task management function completion
  * @hba: per adapter instance
@@ -6379,18 +6358,24 @@ static bool ufshcd_compl_tm(struct request *req, void *priv, bool reserved)
  */
 static irqreturn_t ufshcd_tmc_handler(struct ufs_hba *hba)
 {
-	unsigned long flags;
-	struct request_queue *q = hba->tmf_queue;
-	struct ctm_info ci = {
-		.hba	 = hba,
-	};
+	unsigned long flags, pending, issued;
+	irqreturn_t ret = IRQ_NONE;
+	int tag;
+
+	pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
-	ci.pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
-	blk_mq_tagset_busy_iter(q->tag_set, ufshcd_compl_tm, &ci);
+	issued = hba->outstanding_tasks & ~pending;
+	for_each_set_bit(tag, &issued, hba->nutmrs) {
+		struct request *req = hba->tmf_rqs[tag];
+		struct completion *c = req->end_io_data;
+
+		complete(c);
+		ret = IRQ_HANDLED;
+	}
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
-	return ci.ncpl ? IRQ_HANDLED : IRQ_NONE;
+	return ret;
 }
 
 /**
@@ -6513,9 +6498,9 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	ufshcd_hold(hba, false);
 
 	spin_lock_irqsave(host->host_lock, flags);
-	blk_mq_start_request(req);
 
 	task_tag = req->tag;
+	hba->tmf_rqs[req->tag] = req;
 	treq->req_header.dword_0 |= cpu_to_be32(task_tag);
 
 	memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq));
@@ -6559,6 +6544,7 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	}
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
+	hba->tmf_rqs[req->tag] = NULL;
 	__clear_bit(task_tag, &hba->outstanding_tasks);
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
@@ -9399,6 +9385,12 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		err = PTR_ERR(hba->tmf_queue);
 		goto free_tmf_tag_set;
 	}
+	hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs,
+				    sizeof(*hba->tmf_rqs), GFP_KERNEL);
+	if (!hba->tmf_rqs) {
+		err = -ENOMEM;
+		goto free_tmf_queue;
+	}
 
 	/* Reset the attached device */
 	ufshcd_vops_device_reset(hba);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 914533a8ae691..efc3c88e57878 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -843,6 +843,7 @@ struct ufs_hba {
 
 	struct blk_mq_tag_set tmf_tag_set;
 	struct request_queue *tmf_queue;
+	struct request **tmf_rqs;
 
 	struct uic_command *active_uic_cmd;
 	struct mutex uic_cmd_mutex;
-- 
GitLab


From 8843b0a47e300acc61eb0c56d37f081a08479a40 Mon Sep 17 00:00:00 2001
From: Patrick Rohr <prohr@google.com>
Date: Wed, 13 Oct 2021 16:25:19 +0200
Subject: [PATCH 0304/4878] ANDROID: gki_defconfig: Enable NET_ACT_BPF

This is used for go/bandwidth-limiting.

Test: TreeHugger
Bug: 157552970
Signed-off-by: Patrick Rohr <prohr@google.com>
Change-Id: I89831743c63dff7d62e41e2fd457e6e628d7d0a2
(cherry picked from commit 35613e1fcbf4bff6d6bcb88c2adff7dec1a230c2)
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 2163631885fe7..db6f17205b0fd 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -259,6 +259,7 @@ CONFIG_NET_ACT_POLICE=y
 CONFIG_NET_ACT_GACT=y
 CONFIG_NET_ACT_MIRRED=y
 CONFIG_NET_ACT_SKBEDIT=y
+CONFIG_NET_ACT_BPF=y
 CONFIG_VSOCKETS=y
 CONFIG_CGROUP_NET_PRIO=y
 CONFIG_BPF_JIT=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index ac72b64614604..466d53e818b52 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -236,6 +236,7 @@ CONFIG_NET_ACT_POLICE=y
 CONFIG_NET_ACT_GACT=y
 CONFIG_NET_ACT_MIRRED=y
 CONFIG_NET_ACT_SKBEDIT=y
+CONFIG_NET_ACT_BPF=y
 CONFIG_VSOCKETS=y
 CONFIG_CGROUP_NET_PRIO=y
 CONFIG_BPF_JIT=y
-- 
GitLab


From f077d699c1d2aa05c8d5982bd646b040353f052c Mon Sep 17 00:00:00 2001
From: Jonas Hahnfeld <hahnjo@hahnjo.de>
Date: Tue, 12 Oct 2021 22:09:07 +0200
Subject: [PATCH 0305/4878] ALSA: usb-audio: Add quirk for VF0770

commit 48827e1d6af58f219e89c7ec08dccbca28c7694e upstream.

The device advertises 8 formats, but only a rate of 48kHz is honored
by the hardware and 24 bits give chopped audio, so only report the
one working combination. This fixes out-of-the-box audio experience
with PipeWire which otherwise attempts to choose S24_3LE (while
PulseAudio defaulted to S16_LE).

Signed-off-by: Jonas Hahnfeld <hahnjo@hahnjo.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211012200906.3492-1-hahnjo@hahnjo.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/quirks-table.h | 42 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 5728bf722c88a..7c649cd380493 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -77,6 +77,48 @@
 /* E-Mu 0204 USB */
 { USB_DEVICE_VENDOR_SPEC(0x041e, 0x3f19) },
 
+/*
+ * Creative Technology, Ltd Live! Cam Sync HD [VF0770]
+ * The device advertises 8 formats, but only a rate of 48kHz is honored by the
+ * hardware and 24 bits give chopped audio, so only report the one working
+ * combination.
+ */
+{
+	USB_DEVICE(0x041e, 0x4095),
+	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = &(const struct snd_usb_audio_quirk[]) {
+			{
+				.ifnum = 2,
+				.type = QUIRK_AUDIO_STANDARD_MIXER,
+			},
+			{
+				.ifnum = 3,
+				.type = QUIRK_AUDIO_FIXED_ENDPOINT,
+				.data = &(const struct audioformat) {
+					.formats = SNDRV_PCM_FMTBIT_S16_LE,
+					.channels = 2,
+					.fmt_bits = 16,
+					.iface = 3,
+					.altsetting = 4,
+					.altset_idx = 4,
+					.endpoint = 0x82,
+					.ep_attr = 0x05,
+					.rates = SNDRV_PCM_RATE_48000,
+					.rate_min = 48000,
+					.rate_max = 48000,
+					.nr_rates = 1,
+					.rate_table = (unsigned int[]) { 48000 },
+				},
+			},
+			{
+				.ifnum = -1
+			},
+		},
+	},
+},
+
 /*
  * HP Wireless Audio
  * When not ignored, causes instability issues for some users, forcing them to
-- 
GitLab


From 4aab156d302c92b68c2b7e254a398c32ec33238c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sun, 10 Oct 2021 09:55:46 +0200
Subject: [PATCH 0306/4878] ALSA: pcm: Workaround for a wrong offset in
 SYNC_PTR compat ioctl

commit 228af5a4fa3a8293bd8b7ac5cf59548ee29627bf upstream.

Michael Forney reported an incorrect padding type that was defined in
the commit 80fe7430c708 ("ALSA: add new 32-bit layout for
snd_pcm_mmap_status/control") for PCM control mmap data.
His analysis is correct, and this caused the misplacements of PCM
control data on 32bit arch and 32bit compat mode.

The bug is that the __pad2 definition in __snd_pcm_mmap_control64
struct was wrongly with __pad_before_uframe, which should have been
__pad_after_uframe instead.  This struct is used in SYNC_PTR ioctl and
control mmap.  Basically this bug leads to two problems:

- The offset of avail_min field becomes wrong, it's placed right after
  appl_ptr without padding on little-endian

- When appl_ptr and avail_min are read as 64bit values in kernel side,
  the values become either zero or corrupted (mixed up)

One good news is that, because both user-space and kernel
misunderstand the wrong offset, at least, 32bit application running on
32bit kernel works as is.  Also, 64bit applications are unaffected
because the padding size is zero.  The remaining problem is the 32bit
compat mode; as mentioned in the above, avail_min is placed right
after appl_ptr on little-endian archs, 64bit kernel reads bogus values
for appl_ptr updates, which may lead to streaming bugs like jumping,
XRUN or whatever unexpected.
(However, we haven't heard any serious bug reports due to this over
years, so practically seen, it's fairly safe to assume that the impact
by this bug is limited.)

Ideally speaking, we should correct the wrong mmap status control
definition.  But this would cause again incompatibility with the
existing binaries, and fixing it (e.g. by renumbering ioctls) would be
really messy.

So, as of this patch, we only correct the behavior of 32bit compat
mode and keep the rest as is.  Namely, the SYNC_PTR ioctl is now
handled differently in compat mode to read/write the 32bit values at
the right offsets.  The control mmap of 32bit apps on 64bit kernels
has been already disabled (which is likely rather an overlook, but
this worked fine at this time :), so covering SYNC_PTR ioctl should
suffice as a fallback.

Fixes: 80fe7430c708 ("ALSA: add new 32-bit layout for snd_pcm_mmap_status/control")
Reported-by: Michael Forney <mforney@mforney.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: <stable@vger.kernel.org>
Cc: Rich Felker <dalias@libc.org>
Link: https://lore.kernel.org/r/29QBMJU8DE71E.2YZSH8IHT5HMH@mforney.org
Link: https://lore.kernel.org/r/20211010075546.23220-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/pcm_compat.c | 72 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 590a46a9e78de..a226d8f240287 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -466,6 +466,76 @@ static int snd_pcm_ioctl_sync_ptr_x32(struct snd_pcm_substream *substream,
 }
 #endif /* CONFIG_X86_X32 */
 
+#ifdef __BIG_ENDIAN
+typedef char __pad_before_u32[4];
+typedef char __pad_after_u32[0];
+#else
+typedef char __pad_before_u32[0];
+typedef char __pad_after_u32[4];
+#endif
+
+/* PCM 2.0.15 API definition had a bug in mmap control; it puts the avail_min
+ * at the wrong offset due to a typo in padding type.
+ * The bug hits only 32bit.
+ * A workaround for incorrect read/write is needed only in 32bit compat mode.
+ */
+struct __snd_pcm_mmap_control64_buggy {
+	__pad_before_u32 __pad1;
+	__u32 appl_ptr;
+	__pad_before_u32 __pad2;	/* SiC! here is the bug */
+	__pad_before_u32 __pad3;
+	__u32 avail_min;
+	__pad_after_uframe __pad4;
+};
+
+static int snd_pcm_ioctl_sync_ptr_buggy(struct snd_pcm_substream *substream,
+					struct snd_pcm_sync_ptr __user *_sync_ptr)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_pcm_sync_ptr sync_ptr;
+	struct __snd_pcm_mmap_control64_buggy *sync_cp;
+	volatile struct snd_pcm_mmap_status *status;
+	volatile struct snd_pcm_mmap_control *control;
+	int err;
+
+	memset(&sync_ptr, 0, sizeof(sync_ptr));
+	sync_cp = (struct __snd_pcm_mmap_control64_buggy *)&sync_ptr.c.control;
+	if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags)))
+		return -EFAULT;
+	if (copy_from_user(sync_cp, &(_sync_ptr->c.control), sizeof(*sync_cp)))
+		return -EFAULT;
+	status = runtime->status;
+	control = runtime->control;
+	if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) {
+		err = snd_pcm_hwsync(substream);
+		if (err < 0)
+			return err;
+	}
+	snd_pcm_stream_lock_irq(substream);
+	if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) {
+		err = pcm_lib_apply_appl_ptr(substream, sync_cp->appl_ptr);
+		if (err < 0) {
+			snd_pcm_stream_unlock_irq(substream);
+			return err;
+		}
+	} else {
+		sync_cp->appl_ptr = control->appl_ptr;
+	}
+	if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN))
+		control->avail_min = sync_cp->avail_min;
+	else
+		sync_cp->avail_min = control->avail_min;
+	sync_ptr.s.status.state = status->state;
+	sync_ptr.s.status.hw_ptr = status->hw_ptr;
+	sync_ptr.s.status.tstamp = status->tstamp;
+	sync_ptr.s.status.suspended_state = status->suspended_state;
+	sync_ptr.s.status.audio_tstamp = status->audio_tstamp;
+	snd_pcm_stream_unlock_irq(substream);
+	if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr)))
+		return -EFAULT;
+	return 0;
+}
+
 /*
  */
 enum {
@@ -535,7 +605,7 @@ static long snd_pcm_ioctl_compat(struct file *file, unsigned int cmd, unsigned l
 		if (in_x32_syscall())
 			return snd_pcm_ioctl_sync_ptr_x32(substream, argp);
 #endif /* CONFIG_X86_X32 */
-		return snd_pcm_common_ioctl(file, substream, cmd, argp);
+		return snd_pcm_ioctl_sync_ptr_buggy(substream, argp);
 	case SNDRV_PCM_IOCTL_HW_REFINE32:
 		return snd_pcm_ioctl_hw_params_compat(substream, 1, argp);
 	case SNDRV_PCM_IOCTL_HW_PARAMS32:
-- 
GitLab


From 7680631ac7ab14b5061b475605f469d87952e1b1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 30 Sep 2021 13:41:14 +0200
Subject: [PATCH 0307/4878] ALSA: seq: Fix a potential UAF by wrong
 private_free call order

commit 1f8763c59c4ec6254d629fe77c0a52220bd907aa upstream.

John Keeping reported and posted a patch for a potential UAF in
rawmidi sequencer destruction: the snd_rawmidi_dev_seq_free() may be
called after the associated rawmidi object got already freed.
After a deeper look, it turned out that the bug is rather the
incorrect private_free call order for a snd_seq_device.  The
snd_seq_device private_free gets called at the release callback of the
sequencer device object, while this was rather expected to be executed
at the snd_device call chains that runs at the beginning of the whole
card-free procedure.  It's been broken since the rewrite of
sequencer-device binding (although it hasn't surfaced because the
sequencer device release happens usually right along with the card
device release).

This patch corrects the private_free call to be done in the right
place, at snd_seq_device_dev_free().

Fixes: 7c37ae5c625a ("ALSA: seq: Rewrite sequencer device binding with standard bus")
Reported-and-tested-by: John Keeping <john@metanate.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210930114114.8645-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/seq_device.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/sound/core/seq_device.c b/sound/core/seq_device.c
index 7ed13cb32ef82..f22d3bbfcaa54 100644
--- a/sound/core/seq_device.c
+++ b/sound/core/seq_device.c
@@ -147,6 +147,8 @@ static int snd_seq_device_dev_free(struct snd_device *device)
 	struct snd_seq_device *dev = device->device_data;
 
 	cancel_autoload_drivers();
+	if (dev->private_free)
+		dev->private_free(dev);
 	put_device(&dev->dev);
 	return 0;
 }
@@ -174,11 +176,7 @@ static int snd_seq_device_dev_disconnect(struct snd_device *device)
 
 static void snd_seq_dev_release(struct device *dev)
 {
-	struct snd_seq_device *sdev = to_seq_dev(dev);
-
-	if (sdev->private_free)
-		sdev->private_free(sdev);
-	kfree(sdev);
+	kfree(to_seq_dev(dev));
 }
 
 /*
-- 
GitLab


From 9bb1659ac594a1cc657cef2880a544ecf8dce2d2 Mon Sep 17 00:00:00 2001
From: John Liu <johnliu55tw@gmail.com>
Date: Thu, 30 Sep 2021 13:53:16 +0200
Subject: [PATCH 0308/4878] ALSA: hda/realtek: Enable 4-speaker output for Dell
 Precision 5560 laptop

commit eb676622846b34a751e2ff9b5910a5322a4e0000 upstream.

The Dell Precision 5560 laptop appears to use the 4-speakers-on-ALC289
audio just like its sibling product XPS 9510, so it requires the same
quirk to enable woofer output. Tested on my Dell Precision 5560.

Signed-off-by: John Liu <johnliu55tw@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210930115316.659-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9f37adb2b4d09..3513f690a9e39 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8391,6 +8391,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x0a30, "Dell", ALC236_FIXUP_DELL_AIO_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0a58, "Dell", ALC255_FIXUP_DELL_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0a61, "Dell XPS 15 9510", ALC289_FIXUP_DUAL_SPK),
+	SND_PCI_QUIRK(0x1028, 0x0a62, "Dell Precision 5560", ALC289_FIXUP_DUAL_SPK),
 	SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
-- 
GitLab


From c6e5290e6cc163add96010de8ecfbfdc35efbed6 Mon Sep 17 00:00:00 2001
From: Chris Chiu <chris.chiu@canonical.com>
Date: Fri, 1 Oct 2021 14:28:56 +0800
Subject: [PATCH 0309/4878] ALSA: hda - Enable headphone mic on Dell Latitude
 laptops with ALC3254

commit 2b987fe84429361c7f189568c476d1bd00d2ff7e upstream.

The headphone mic is not working on Dell Latitude laptops with ALC3254.
The codec vendor id is 0x10ec0295 and share the same pincfg as defined
in ALC295_STANDARD_PINS. So the ALC269_FIXUP_DELL1_MIC_NO_PRESENCE will
be applied per alc269_pin_fixup_tbl[] but actually the headphone mic is
using NID 0x1b instead of 0x1a. The ALC269_FIXUP_DELL4_MIC_NO_PRESENCE
need to be applied instead.

Use ALC269_FIXUP_DELL4_MIC_NO_PRESENCE for particular models before
a generic fixup comes out.

Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211001062856.1037901-1-chris.chiu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 3513f690a9e39..3261ad8f3b762 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8392,6 +8392,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x0a58, "Dell", ALC255_FIXUP_DELL_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1028, 0x0a61, "Dell XPS 15 9510", ALC289_FIXUP_DUAL_SPK),
 	SND_PCI_QUIRK(0x1028, 0x0a62, "Dell Precision 5560", ALC289_FIXUP_DUAL_SPK),
+	SND_PCI_QUIRK(0x1028, 0x0a9d, "Dell Latitude 5430", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x0a9e, "Dell Latitude 5430", ALC269_FIXUP_DELL4_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
-- 
GitLab


From 8a5f01f4b01c4984544d96abc20591052dc86c90 Mon Sep 17 00:00:00 2001
From: Werner Sembach <wse@tuxedocomputers.com>
Date: Fri, 1 Oct 2021 15:31:10 +0200
Subject: [PATCH 0310/4878] ALSA: hda/realtek: Complete partial device name to
 avoid ambiguity

commit 1f8d398e1cd8813f8ec16d55c086e8270a9c18ab upstream.

The string "Clevo X170" is not enough to unambiguously identify the correct
device.

Fixing it so another Clevo barebone name starting with "X170" can be added
without causing confusion.

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211001133111.428249-2-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 3261ad8f3b762..c21d0e95906f0 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2549,7 +2549,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1558, 0x67e1, "Clevo PB71[DE][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x67e5, "Clevo PC70D[PRS](?:-D|-G)?", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x70d1, "Clevo PC70[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
-	SND_PCI_QUIRK(0x1558, 0x7714, "Clevo X170", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
+	SND_PCI_QUIRK(0x1558, 0x7714, "Clevo X170SM", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x9501, "Clevo P950HR", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1558, 0x9506, "Clevo P955HQ", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1558, 0x950a, "Clevo P955H[PR]", ALC1220_FIXUP_CLEVO_P950),
-- 
GitLab


From 1e10c6bf15d26ec8df8d45a13b5da58d6d9a6b53 Mon Sep 17 00:00:00 2001
From: Werner Sembach <wse@tuxedocomputers.com>
Date: Fri, 1 Oct 2021 15:31:11 +0200
Subject: [PATCH 0311/4878] ALSA: hda/realtek: Add quirk for Clevo X170KM-G

commit cc03069a397005da24f6783835c274d5aedf6043 upstream.

This applies a SND_PCI_QUIRK(...) to the Clevo X170KM-G barebone. This
fixes the issue of the devices internal Speaker not working.

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211001133111.428249-3-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c21d0e95906f0..71c9c7d89dfb3 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2550,6 +2550,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1558, 0x67e5, "Clevo PC70D[PRS](?:-D|-G)?", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x70d1, "Clevo PC70[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x7714, "Clevo X170SM", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
+	SND_PCI_QUIRK(0x1558, 0x7715, "Clevo X170KM-G", ALC1220_FIXUP_CLEVO_PB51ED),
 	SND_PCI_QUIRK(0x1558, 0x9501, "Clevo P950HR", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1558, 0x9506, "Clevo P955HQ", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1558, 0x950a, "Clevo P955H[PR]", ALC1220_FIXUP_CLEVO_P950),
-- 
GitLab


From 0fa256509b9f71e6936b6782418510120aac1bf7 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Tue, 5 Oct 2021 14:35:14 +0800
Subject: [PATCH 0312/4878] ALSA: hda/realtek - ALC236 headset MIC recording
 issue

commit 5aec98913095ed3b4424ed6c5fdeb6964e9734da upstream.

In power save mode, the recording voice from headset mic will 2s more delay.
Add this patch will solve this issue.

[ minor coding style fix by tiwai ]

Signed-off-by: Kailang Yang <kailang@realtek.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/ccb0cdd5bbd7486eabbd8d987d384cb0@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 71c9c7d89dfb3..43fa079bbb7c9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -527,6 +527,8 @@ static void alc_shutup_pins(struct hda_codec *codec)
 	struct alc_spec *spec = codec->spec;
 
 	switch (codec->core.vendor_id) {
+	case 0x10ec0236:
+	case 0x10ec0256:
 	case 0x10ec0283:
 	case 0x10ec0286:
 	case 0x10ec0288:
@@ -3532,7 +3534,8 @@ static void alc256_shutup(struct hda_codec *codec)
 	/* If disable 3k pulldown control for alc257, the Mic detection will not work correctly
 	 * when booting with headset plugged. So skip setting it for the codec alc257
 	 */
-	if (codec->core.vendor_id != 0x10ec0257)
+	if (spec->codec_variant != ALC269_TYPE_ALC257 &&
+	    spec->codec_variant != ALC269_TYPE_ALC256)
 		alc_update_coef_idx(codec, 0x46, 0, 3 << 12);
 
 	if (!spec->no_shutup_pins)
-- 
GitLab


From 554a5027f53698c537e83562716fedd7151b7edd Mon Sep 17 00:00:00 2001
From: Werner Sembach <wse@tuxedocomputers.com>
Date: Wed, 6 Oct 2021 15:04:15 +0200
Subject: [PATCH 0313/4878] ALSA: hda/realtek: Add quirk for TongFang PHxTxX1

commit dd6dd6e3c791db7fdbc5433ec7e450717aa3a0ce upstream.

This applies a SND_PCI_QUIRK(...) to the TongFang PHxTxX1 barebone. This
fixes the issue of the internal Microphone not working after booting
another OS.

When booting a certain another OS this barebone keeps some coeff settings
even after a cold shutdown. These coeffs prevent the microphone detection
from working in Linux, making the Laptop think that there is always an
external microphone plugged-in and therefore preventing the use of the
internal one.

The relevant indexes and values where gathered by naively diff-ing and
reading a working and a non-working coeff dump.

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211006130415.538243-1-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 43fa079bbb7c9..daa1383e549bb 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6399,6 +6399,24 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec,
 /* for alc285_fixup_ideapad_s740_coef() */
 #include "ideapad_s740_helper.c"
 
+static void alc256_fixup_tongfang_reset_persistent_settings(struct hda_codec *codec,
+							    const struct hda_fixup *fix,
+							    int action)
+{
+	/*
+	* A certain other OS sets these coeffs to different values. On at least one TongFang
+	* barebone these settings might survive even a cold reboot. So to restore a clean slate the
+	* values are explicitly reset to default here. Without this, the external microphone is
+	* always in a plugged-in state, while the internal microphone is always in an unplugged
+	* state, breaking the ability to use the internal microphone.
+	*/
+	alc_write_coef_idx(codec, 0x24, 0x0000);
+	alc_write_coef_idx(codec, 0x26, 0x0000);
+	alc_write_coef_idx(codec, 0x29, 0x3000);
+	alc_write_coef_idx(codec, 0x37, 0xfe05);
+	alc_write_coef_idx(codec, 0x45, 0x5089);
+}
+
 enum {
 	ALC269_FIXUP_GPIO2,
 	ALC269_FIXUP_SONY_VAIO,
@@ -6612,7 +6630,8 @@ enum {
 	ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS,
 	ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE,
 	ALC287_FIXUP_YOGA7_14ITL_SPEAKERS,
-	ALC287_FIXUP_13S_GEN2_SPEAKERS
+	ALC287_FIXUP_13S_GEN2_SPEAKERS,
+	ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8304,6 +8323,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_HEADSET_MODE,
 	},
+	[ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc256_fixup_tongfang_reset_persistent_settings,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -8733,6 +8756,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1b7d, 0xa831, "Ordissimo EVE2 ", ALC269VB_FIXUP_ORDISSIMO_EVE2), /* Also known as Malata PC-B1303 */
 	SND_PCI_QUIRK(0x1c06, 0x2013, "Lemote A1802", ALC269_FIXUP_LEMOTE_A1802),
 	SND_PCI_QUIRK(0x1c06, 0x2015, "Lemote A190X", ALC269_FIXUP_LEMOTE_A190X),
+	SND_PCI_QUIRK(0x1d05, 0x1132, "TongFang PHxTxX1", ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS),
 	SND_PCI_QUIRK(0x1d72, 0x1602, "RedmiBook", ALC255_FIXUP_XIAOMI_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1d72, 0x1701, "XiaomiNotebook Pro", ALC298_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1d72, 0x1901, "RedmiBook 14", ALC256_FIXUP_ASUS_HEADSET_MIC),
-- 
GitLab


From 1099953b32c6eb71ea03fa5793cad4fe7fa514df Mon Sep 17 00:00:00 2001
From: Cameron Berkenpas <cam@neo-zeon.de>
Date: Sun, 10 Oct 2021 15:54:11 -0700
Subject: [PATCH 0314/4878] ALSA: hda/realtek: Fix for quirk to enable speaker
 output on the Lenovo 13s Gen2

commit 023a062f238129e8a542b5163c4350ceb076283e upstream.

The previous patch's HDA verb initialization for the Lenovo 13s
sequence was slightly off. This updated verb sequence has been tested
and confirmed working.

Fixes: ad7cc2d41b7a ("ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops.")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208555
Cc: <stable@vger.kernel.org>
Signed-off-by: Cameron Berkenpas <cam@neo-zeon.de>
Link: https://lore.kernel.org/r/20211010225410.23423-1-cam@neo-zeon.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index daa1383e549bb..6c6a379ebabbe 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8306,7 +8306,7 @@ static const struct hda_fixup alc269_fixups[] = {
 		.v.verbs = (const struct hda_verb[]) {
 			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x24 },
 			{ 0x20, AC_VERB_SET_PROC_COEF, 0x41 },
-			{ 0x20, AC_VERB_SET_PROC_COEF, 0xb020 },
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x26 },
 			{ 0x20, AC_VERB_SET_PROC_COEF, 0x2 },
 			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
 			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0 },
-- 
GitLab


From c3bf276fd7c8e75749dd4d7e8ad01b633634fb35 Mon Sep 17 00:00:00 2001
From: Hui Wang <hui.wang@canonical.com>
Date: Tue, 12 Oct 2021 19:47:48 +0800
Subject: [PATCH 0315/4878] ALSA: hda/realtek: Fix the mic type detection issue
 for ASUS G551JW

commit a3fd1a986e499a06ac5ef95c3a39aa4611e7444c upstream.

We need to define the codec pin 0x1b to be the mic, but somehow
the mic doesn't support hot plugging detection, and Windows also has
this issue, so we set it to phantom headset-mic.

Also the determine_headset_type() often returns the omtp type by a
mistake when we plug a ctia headset, this makes the mic can't record
sound at all. Because most of the headset are ctia type nowadays and
some machines have the fixed ctia type audio jack, it is possible this
machine has the fixed ctia jack too. Here we set this mic jack to
fixed ctia type, this could avoid the mic type detection mistake and
make the ctia headset work stable.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214537
Reported-and-tested-by: msd <msd.mmq@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20211012114748.5238-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6c6a379ebabbe..c36239cea474f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -10129,6 +10129,9 @@ enum {
 	ALC671_FIXUP_HP_HEADSET_MIC2,
 	ALC662_FIXUP_ACER_X2660G_HEADSET_MODE,
 	ALC662_FIXUP_ACER_NITRO_HEADSET_MODE,
+	ALC668_FIXUP_ASUS_NO_HEADSET_MIC,
+	ALC668_FIXUP_HEADSET_MIC,
+	ALC668_FIXUP_MIC_DET_COEF,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
@@ -10512,6 +10515,29 @@ static const struct hda_fixup alc662_fixups[] = {
 		.chained = true,
 		.chain_id = ALC662_FIXUP_USI_FUNC
 	},
+	[ALC668_FIXUP_ASUS_NO_HEADSET_MIC] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x1b, 0x04a1112c },
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC668_FIXUP_HEADSET_MIC
+	},
+	[ALC668_FIXUP_HEADSET_MIC] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc269_fixup_headset_mic,
+		.chained = true,
+		.chain_id = ALC668_FIXUP_MIC_DET_COEF
+	},
+	[ALC668_FIXUP_MIC_DET_COEF] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x15 },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x0d60 },
+			{}
+		},
+	},
 };
 
 static const struct snd_pci_quirk alc662_fixup_tbl[] = {
@@ -10547,6 +10573,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x15a7, "ASUS UX51VZH", ALC662_FIXUP_BASS_16),
 	SND_PCI_QUIRK(0x1043, 0x177d, "ASUS N551", ALC668_FIXUP_ASUS_Nx51),
 	SND_PCI_QUIRK(0x1043, 0x17bd, "ASUS N751", ALC668_FIXUP_ASUS_Nx51),
+	SND_PCI_QUIRK(0x1043, 0x185d, "ASUS G551JW", ALC668_FIXUP_ASUS_NO_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1043, 0x1963, "ASUS X71SL", ALC662_FIXUP_ASUS_MODE8),
 	SND_PCI_QUIRK(0x1043, 0x1b73, "ASUS N55SF", ALC662_FIXUP_BASS_16),
 	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_BASS_MODE4_CHMAP),
-- 
GitLab


From 7ef43c0f68fb6d5c00c7ac32538b2e988d6a38e2 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Thu, 14 Oct 2021 14:35:07 -0400
Subject: [PATCH 0316/4878] nds32/ftrace: Fix Error: invalid operands (*UND*
 and *UND* sections) for `^'

commit be358af1191b1b2fedebd8f3421cafdc8edacc7d upstream.

I received a build failure for a new patch I'm working on the nds32
architecture, and when I went to test it, I couldn't get to my build error,
because it failed to build with a bunch of:

  Error: invalid operands (*UND* and *UND* sections) for `^'

issues with various files. Those files were temporary asm files that looked
like:  kernel/.tmp_mc_fork.s

I decided to look deeper, and found that the "mc" portion of that name
stood for "mcount", and was created by the recordmcount.pl script. One that
I wrote over a decade ago. Once I knew the source of the problem, I was
able to investigate it further.

The way the recordmcount.pl script works (BTW, there's a C version that
simply modifies the ELF object) is by doing an "objdump" on the object
file. Looks for all the calls to "mcount", and creates an offset of those
locations from some global variable it can use (usually a global function
name, found with <.*>:). Creates a asm file that is a table of references
to these locations, using the found variable/function. Compiles it and
links it back into the original object file. This asm file is called
".tmp_mc_<object_base_name>.s".

The problem here is that the objdump produced by the nds32 object file,
contains things that look like:

 0000159a <.L3^B1>:
    159a:       c6 00           beqz38 $r6, 159a <.L3^B1>
                        159a: R_NDS32_9_PCREL_RELA      .text+0x159e
    159c:       84 d2           movi55 $r6, #-14
    159e:       80 06           mov55 $r0, $r6
    15a0:       ec 3c           addi10.sp #0x3c

Where ".L3^B1 is somehow selected as the "global" variable to index off of.

Then the assembly file that holds the mcount locations looks like this:

        .section __mcount_loc,"a",@progbits
        .align 2
        .long .L3^B1 + -5522
        .long .L3^B1 + -5384
        .long .L3^B1 + -5270
        .long .L3^B1 + -5098
        .long .L3^B1 + -4970
        .long .L3^B1 + -4758
        .long .L3^B1 + -4122
        [...]

And when it is compiled back to an object to link to the original object,
the compile fails on the "^" symbol.

Simple solution for now, is to have the perl script ignore using function
symbols that have an "^" in the name.

Link: https://lkml.kernel.org/r/20211014143507.4ad2c0f7@gandalf.local.home

Cc: stable@vger.kernel.org
Acked-by: Greentime Hu <green.hu@gmail.com>
Fixes: fbf58a52ac088 ("nds32/ftrace: Add RECORD_MCOUNT support")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/recordmcount.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 4f84657f55c23..f459ae883a0a6 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -222,7 +222,7 @@ if ($arch =~ /(x86(_64)?)|(i386)/) {
 $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
 $weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
 $section_regex = "Disassembly of section\\s+(\\S+):";
-$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
+$function_regex = "^([0-9a-fA-F]+)\\s+<([^^]*?)>:";
 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s(mcount|__fentry__)\$";
 $section_type = '@progbits';
 $mcount_adjust = 0;
-- 
GitLab


From faba7916cdc0da11c7402538fe95642b43c7b73b Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@huawei.com>
Date: Tue, 5 Oct 2021 14:08:36 +0200
Subject: [PATCH 0317/4878] s390: fix strrchr() implementation

commit 8e0ab8e26b72a80e991c66a8abc16e6c856abe3d upstream.

Fix two problems found in the strrchr() implementation for s390
architectures: evaluate empty strings (return the string address instead of
NULL, if '\0' is passed as second argument); evaluate the first character
of non-empty strings (the current implementation stops at the second).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reported-by: Heiko Carstens <hca@linux.ibm.com> (incorrect behavior with empty strings)
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Link: https://lore.kernel.org/r/20211005120836.60630-1-roberto.sassu@huawei.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/lib/string.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/s390/lib/string.c b/arch/s390/lib/string.c
index 93b3209b94a2f..db4e539d8c7fe 100644
--- a/arch/s390/lib/string.c
+++ b/arch/s390/lib/string.c
@@ -246,14 +246,13 @@ EXPORT_SYMBOL(strcmp);
 #ifdef __HAVE_ARCH_STRRCHR
 char *strrchr(const char *s, int c)
 {
-       size_t len = __strend(s) - s;
-
-       if (len)
-	       do {
-		       if (s[len] == (char) c)
-			       return (char *) s + len;
-	       } while (--len > 0);
-       return NULL;
+	ssize_t len = __strend(s) - s;
+
+	do {
+		if (s[len] == (char)c)
+			return (char *)s + len;
+	} while (--len >= 0);
+	return NULL;
 }
 EXPORT_SYMBOL(strrchr);
 #endif
-- 
GitLab


From e3c37135c9ca9d7a31a8fbb6520947d5406c44c1 Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@kernel.org>
Date: Thu, 16 Sep 2021 17:51:26 -0500
Subject: [PATCH 0318/4878] clk: socfpga: agilex: fix duplicate s2f_user0_clk

commit 09540fa337196be20e9f0241652364f09275d374 upstream.

Remove the duplicate s2f_user0_clk and the unused s2f_usr0_mux define.

Fixes: f817c132db67 ("clk: socfpga: agilex: fix up s2f_user0_clk representation")
Cc: stable@vger.kernel.org
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20210916225126.1427700-1-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/clk/socfpga/clk-agilex.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/clk/socfpga/clk-agilex.c b/drivers/clk/socfpga/clk-agilex.c
index 7182afb4258a7..225636c2b5696 100644
--- a/drivers/clk/socfpga/clk-agilex.c
+++ b/drivers/clk/socfpga/clk-agilex.c
@@ -165,13 +165,6 @@ static const struct clk_parent_data mpu_mux[] = {
 	  .name = "boot_clk", },
 };
 
-static const struct clk_parent_data s2f_usr0_mux[] = {
-	{ .fw_name = "f2s-free-clk",
-	  .name = "f2s-free-clk", },
-	{ .fw_name = "boot_clk",
-	  .name = "boot_clk", },
-};
-
 static const struct clk_parent_data emac_mux[] = {
 	{ .fw_name = "emaca_free_clk",
 	  .name = "emaca_free_clk", },
@@ -299,8 +292,6 @@ static const struct stratix10_gate_clock agilex_gate_clks[] = {
 	  4, 0x44, 28, 1, 0, 0, 0},
 	{ AGILEX_CS_TIMER_CLK, "cs_timer_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
 	  5, 0, 0, 0, 0x30, 1, 0},
-	{ AGILEX_S2F_USER0_CLK, "s2f_user0_clk", NULL, s2f_usr0_mux, ARRAY_SIZE(s2f_usr0_mux), 0, 0x24,
-	  6, 0, 0, 0, 0, 0, 0},
 	{ AGILEX_EMAC0_CLK, "emac0_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0x7C,
 	  0, 0, 0, 0, 0x94, 26, 0},
 	{ AGILEX_EMAC1_CLK, "emac1_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0x7C,
-- 
GitLab


From 5dab6e8f141a305030b37d9e6fcbe7c27b3513ab Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 24 Sep 2021 00:35:42 +0000
Subject: [PATCH 0319/4878] csky: don't let sigreturn play with priveleged bits
 of status register

commit fbd63c08cdcca5fb1315aca3172b3c9c272cfb4f upstream.

csky restore_sigcontext() blindly overwrites regs->sr with the value
it finds in sigcontext.  Attacker can store whatever they want in there,
which includes things like S-bit.  Userland shouldn't be able to set
that, or anything other than C flag (bit 0).

Do the same thing other architectures with protected bits in flags
register do - preserve everything that shouldn't be settable in
user mode, picking the rest from the value saved is sigcontext.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Guo Ren <guoren@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/csky/kernel/signal.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/csky/kernel/signal.c b/arch/csky/kernel/signal.c
index 8b068cf374478..0ca49b5e3dd37 100644
--- a/arch/csky/kernel/signal.c
+++ b/arch/csky/kernel/signal.c
@@ -52,10 +52,14 @@ static long restore_sigcontext(struct pt_regs *regs,
 	struct sigcontext __user *sc)
 {
 	int err = 0;
+	unsigned long sr = regs->sr;
 
 	/* sc_pt_regs is structured the same as the start of pt_regs */
 	err |= __copy_from_user(regs, &sc->sc_pt_regs, sizeof(struct pt_regs));
 
+	/* BIT(0) of regs->sr is Condition Code/Carry bit */
+	regs->sr = (sr & ~1) | (regs->sr & 1);
+
 	/* Restore the floating-point state. */
 	err |= restore_fpu_state(sc);
 
-- 
GitLab


From 0c97008859cad117568b3b5cc073993025b59a57 Mon Sep 17 00:00:00 2001
From: Guo Ren <guoren@linux.alibaba.com>
Date: Fri, 24 Sep 2021 15:33:38 +0800
Subject: [PATCH 0320/4878] csky: Fixup regs.sr broken in ptrace

commit af89ebaa64de726ca0a39bbb0bf0c81a1f43ad50 upstream.

gpr_get() return the entire pt_regs (include sr) to userspace, if we
don't restore the C bit in gpr_set, it may break the ALU result in
that context. So the C flag bit is part of gpr context, that's why
riscv totally remove the C bit in the ISA. That makes sr reg clear
from userspace to supervisor privilege.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/csky/kernel/ptrace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c
index a4cf2e2ac15ac..ac07695bc5418 100644
--- a/arch/csky/kernel/ptrace.c
+++ b/arch/csky/kernel/ptrace.c
@@ -98,7 +98,8 @@ static int gpr_set(struct task_struct *target,
 	if (ret)
 		return ret;
 
-	regs.sr = task_pt_regs(target)->sr;
+	/* BIT(0) of regs.sr is Condition Code/Carry bit */
+	regs.sr = (regs.sr & BIT(0)) | (task_pt_regs(target)->sr & ~BIT(0));
 #ifdef CONFIG_CPU_HAS_HILO
 	regs.dcsr = task_pt_regs(target)->dcsr;
 #endif
-- 
GitLab


From a31c33aa80a550b3848024533bda215a0aa52e0b Mon Sep 17 00:00:00 2001
From: Mike Kravetz <mike.kravetz@oracle.com>
Date: Tue, 5 Oct 2021 13:25:29 -0700
Subject: [PATCH 0321/4878] arm64/hugetlb: fix CMA gigantic page order for
 non-4K PAGE_SIZE

commit 2e5809a4ddb15969503e43b06662a9a725f613ea upstream.

For non-4K PAGE_SIZE configs, the largest gigantic huge page size is
CONT_PMD_SHIFT order. On arm64 with 64K PAGE_SIZE, the gigantic page is
16G. Therefore, one should be able to specify 'hugetlb_cma=16G' on the
kernel command line so that one gigantic page can be allocated from CMA.
However, when adding such an option the following message is produced:

hugetlb_cma: cma area should be at least 8796093022208 MiB

This is because the calculation for non-4K gigantic page order is
incorrect in the arm64 specific routine arm64_hugetlb_cma_reserve().

Fixes: abb7962adc80 ("arm64/hugetlb: Reserve CMA areas for gigantic pages on 16K and 64K configs")
Cc: <stable@vger.kernel.org> # 5.9.x
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20211005202529.213812-1-mike.kravetz@oracle.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/mm/hugetlbpage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 55ecf6de9ff77..99cd6e7184083 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -43,7 +43,7 @@ void __init arm64_hugetlb_cma_reserve(void)
 #ifdef CONFIG_ARM64_4K_PAGES
 	order = PUD_SHIFT - PAGE_SHIFT;
 #else
-	order = CONT_PMD_SHIFT + PMD_SHIFT - PAGE_SHIFT;
+	order = CONT_PMD_SHIFT - PAGE_SHIFT;
 #endif
 	/*
 	 * HugeTLB CMA reservation is required for gigantic
-- 
GitLab


From e7e3ed5c92b6b7255f19605b56de2bf7a0f2f7db Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Fri, 17 Sep 2021 02:59:13 +0200
Subject: [PATCH 0322/4878] drm/msm: Avoid potential overflow in
 timeout_to_jiffies()

commit 171316a68d9a8e0d9e28b7cf4c15afc4c6244a4e upstream.

The return type of ktime_divns() is s64. The timeout_to_jiffies() currently
assigns the result of this ktime_divns() to unsigned long, which on 32 bit
systems may overflow. Furthermore, the result of this function is sometimes
also passed to functions which expect signed long, dma_fence_wait_timeout()
is one such example.

Fix this by adjusting the type of remaining_jiffies to s64, so we do not
suffer overflow there, and return a value limited to range of 0..INT_MAX,
which is safe for all usecases of this timeout.

The above overflow can be triggered if userspace passes in too large timeout
value, larger than INT_MAX / HZ seconds. The kernel detects it and complains
about "schedule_timeout: wrong timeout value %lx" and generates a warning
backtrace.

Note that this fixes commit 6cedb8b377bb ("drm/msm: avoid using 'timespec'"),
because the previously used timespec_to_jiffies() function returned unsigned
long instead of s64:
static inline unsigned long timespec_to_jiffies(const struct timespec *value)

Fixes: 6cedb8b377bb ("drm/msm: avoid using 'timespec'")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jordan Crouse <jcrouse@codeaurora.org>
Cc: Rob Clark <robdclark@chromium.org>
Cc: stable@vger.kernel.org # 5.6+
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210917005913.157379-1-marex@denx.de
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/msm_drv.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 0b2686b060c73..d96b254b8aa46 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -543,7 +543,7 @@ static inline int align_pitch(int width, int bpp)
 static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
 {
 	ktime_t now = ktime_get();
-	unsigned long remaining_jiffies;
+	s64 remaining_jiffies;
 
 	if (ktime_compare(*timeout, now) < 0) {
 		remaining_jiffies = 0;
@@ -552,7 +552,7 @@ static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
 		remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
 	}
 
-	return remaining_jiffies;
+	return clamp(remaining_jiffies, 0LL, (s64)INT_MAX);
 }
 
 #endif /* __MSM_DRV_H__ */
-- 
GitLab


From 206868a5b6c14adc4098dd3210a2f7510d97a670 Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Tue, 14 Sep 2021 14:57:59 +0800
Subject: [PATCH 0323/4878] btrfs: unlock newly allocated extent buffer after
 error

commit 19ea40dddf1833db868533958ca066f368862211 upstream.

[BUG]
There is a bug report that injected ENOMEM error could leave a tree
block locked while we return to user-space:

  BTRFS info (device loop0): enabling ssd optimizations
  FAULT_INJECTION: forcing a failure.
  name failslab, interval 1, probability 0, space 0, times 0
  CPU: 0 PID: 7579 Comm: syz-executor Not tainted 5.15.0-rc1 #16
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
  rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
  Call Trace:
   __dump_stack lib/dump_stack.c:88 [inline]
   dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106
   fail_dump lib/fault-inject.c:52 [inline]
   should_fail+0x13c/0x160 lib/fault-inject.c:146
   should_failslab+0x5/0x10 mm/slab_common.c:1328
   slab_pre_alloc_hook.constprop.99+0x4e/0xc0 mm/slab.h:494
   slab_alloc_node mm/slub.c:3120 [inline]
   slab_alloc mm/slub.c:3214 [inline]
   kmem_cache_alloc+0x44/0x280 mm/slub.c:3219
   btrfs_alloc_delayed_extent_op fs/btrfs/delayed-ref.h:299 [inline]
   btrfs_alloc_tree_block+0x38c/0x670 fs/btrfs/extent-tree.c:4833
   __btrfs_cow_block+0x16f/0x7d0 fs/btrfs/ctree.c:415
   btrfs_cow_block+0x12a/0x300 fs/btrfs/ctree.c:570
   btrfs_search_slot+0x6b0/0xee0 fs/btrfs/ctree.c:1768
   btrfs_insert_empty_items+0x80/0xf0 fs/btrfs/ctree.c:3905
   btrfs_new_inode+0x311/0xa60 fs/btrfs/inode.c:6530
   btrfs_create+0x12b/0x270 fs/btrfs/inode.c:6783
   lookup_open+0x660/0x780 fs/namei.c:3282
   open_last_lookups fs/namei.c:3352 [inline]
   path_openat+0x465/0xe20 fs/namei.c:3557
   do_filp_open+0xe3/0x170 fs/namei.c:3588
   do_sys_openat2+0x357/0x4a0 fs/open.c:1200
   do_sys_open+0x87/0xd0 fs/open.c:1216
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x34/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x44/0xae
  RIP: 0033:0x46ae99
  Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48
  89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d
  01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
  RSP: 002b:00007f46711b9c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
  RAX: ffffffffffffffda RBX: 000000000078c0a0 RCX: 000000000046ae99
  RDX: 0000000000000000 RSI: 00000000000000a1 RDI: 0000000020005800
  RBP: 00007f46711b9c80 R08: 0000000000000000 R09: 0000000000000000
  R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000017
  R13: 0000000000000000 R14: 000000000078c0a0 R15: 00007ffc129da6e0

  ================================================
  WARNING: lock held when returning to user space!
  5.15.0-rc1 #16 Not tainted
  ------------------------------------------------
  syz-executor/7579 is leaving the kernel with locks still held!
  1 lock held by syz-executor/7579:
   #0: ffff888104b73da8 (btrfs-tree-01/1){+.+.}-{3:3}, at:
  __btrfs_tree_lock+0x2e/0x1a0 fs/btrfs/locking.c:112

[CAUSE]
In btrfs_alloc_tree_block(), after btrfs_init_new_buffer(), the new
extent buffer @buf is locked, but if later operations like adding
delayed tree ref fail, we just free @buf without unlocking it,
resulting above warning.

[FIX]
Unlock @buf in out_free_buf: label.

Reported-by: Hao Sun <sunhao.th@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CACkBjsZ9O6Zr0KK1yGn=1rQi6Crh1yeCRdTSBxx9R99L4xdn-Q@mail.gmail.com/
CC: stable@vger.kernel.org # 5.4+
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/extent-tree.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c346c46020e5e..284294620e9fa 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4715,6 +4715,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
 out_free_delayed:
 	btrfs_free_delayed_extent_op(extent_op);
 out_free_buf:
+	btrfs_tree_unlock(buf);
 	free_extent_buffer(buf);
 out_free_reserved:
 	btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 0);
-- 
GitLab


From 95d3aba5febea20d185888763e5dbf7966ad8947 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Fri, 1 Oct 2021 13:52:31 +0100
Subject: [PATCH 0324/4878] btrfs: deal with errors when replaying dir entry
 during log replay

commit e15ac6413745e3def00e663de00aea5a717311c1 upstream.

At replay_one_one(), we are treating any error returned from
btrfs_lookup_dir_item() or from btrfs_lookup_dir_index_item() as meaning
that there is no existing directory entry in the fs/subvolume tree.
This is not correct since we can get errors such as, for example, -EIO
when reading extent buffers while searching the fs/subvolume's btree.

So fix that and return the error to the caller when it is not -ENOENT.

CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 7bf3936aceda2..ca8fbc7ef473e 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1938,7 +1938,14 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
 		ret = -EINVAL;
 		goto out;
 	}
-	if (IS_ERR_OR_NULL(dst_di)) {
+
+	if (dst_di == ERR_PTR(-ENOENT))
+		dst_di = NULL;
+
+	if (IS_ERR(dst_di)) {
+		ret = PTR_ERR(dst_di);
+		goto out;
+	} else if (!dst_di) {
 		/* we need a sequence number to insert, so we only
 		 * do inserts for the BTRFS_DIR_INDEX_KEY types
 		 */
-- 
GitLab


From 4ed68471bc370ad681b85aaf22fbbffe20fb7b12 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Fri, 1 Oct 2021 13:52:32 +0100
Subject: [PATCH 0325/4878] btrfs: deal with errors when adding inode reference
 during log replay

commit 52db77791fe24538c8aa2a183248399715f6b380 upstream.

At __inode_add_ref(), we treating any error returned from
btrfs_lookup_dir_item() or from btrfs_lookup_dir_index_item() as meaning
that there is no existing directory entry in the fs/subvolume tree.
This is not correct since we can get errors such as, for example, -EIO
when reading extent buffers while searching the fs/subvolume's btree.

So fix that and return the error to the caller when it is not -ENOENT.

CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ca8fbc7ef473e..66d275bf76bc0 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1137,7 +1137,10 @@ next:
 	/* look for a conflicting sequence number */
 	di = btrfs_lookup_dir_index_item(trans, root, path, btrfs_ino(dir),
 					 ref_index, name, namelen, 0);
-	if (di && !IS_ERR(di)) {
+	if (IS_ERR(di)) {
+		if (PTR_ERR(di) != -ENOENT)
+			return PTR_ERR(di);
+	} else if (di) {
 		ret = drop_one_dir_item(trans, root, path, dir, di);
 		if (ret)
 			return ret;
@@ -1147,7 +1150,9 @@ next:
 	/* look for a conflicting name */
 	di = btrfs_lookup_dir_item(trans, root, path, btrfs_ino(dir),
 				   name, namelen, 0);
-	if (di && !IS_ERR(di)) {
+	if (IS_ERR(di)) {
+		return PTR_ERR(di);
+	} else if (di) {
 		ret = drop_one_dir_item(trans, root, path, dir, di);
 		if (ret)
 			return ret;
-- 
GitLab


From 352349aa4948491d0ca2ac0e2af5ccf9b82d0d4c Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Fri, 1 Oct 2021 13:48:18 +0100
Subject: [PATCH 0326/4878] btrfs: check for error when looking up inode during
 dir entry replay

commit cfd312695b71df04c3a2597859ff12c470d1e2e4 upstream.

At replay_one_name(), we are treating any error from btrfs_lookup_inode()
as if the inode does not exists. Fix this by checking for an error and
returning it to the caller.

CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 66d275bf76bc0..c3bb5c4375ab0 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1902,8 +1902,8 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
 	struct btrfs_key log_key;
 	struct inode *dir;
 	u8 log_type;
-	int exists;
-	int ret = 0;
+	bool exists;
+	int ret;
 	bool update_size = (key->type == BTRFS_DIR_INDEX_KEY);
 	bool name_added = false;
 
@@ -1923,12 +1923,12 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
 		   name_len);
 
 	btrfs_dir_item_key_to_cpu(eb, di, &log_key);
-	exists = btrfs_lookup_inode(trans, root, path, &log_key, 0);
-	if (exists == 0)
-		exists = 1;
-	else
-		exists = 0;
+	ret = btrfs_lookup_inode(trans, root, path, &log_key, 0);
 	btrfs_release_path(path);
+	if (ret < 0)
+		goto out;
+	exists = (ret == 0);
+	ret = 0;
 
 	if (key->type == BTRFS_DIR_ITEM_KEY) {
 		dst_di = btrfs_lookup_dir_item(trans, root, path, key->objectid,
-- 
GitLab


From 52924879ed450b5c0731c7abd670f2ac57dde93d Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 1 Oct 2021 13:57:18 -0400
Subject: [PATCH 0327/4878] btrfs: update refs for any root except tree log
 roots

commit d175209be04d7d263fa1a54cde7608c706c9d0d7 upstream.

I hit a stuck relocation on btrfs/061 during my overnight testing.  This
turned out to be because we had left over extent entries in our extent
root for a data reloc inode that no longer existed.  This happened
because in btrfs_drop_extents() we only update refs if we have SHAREABLE
set or we are the tree_root.  This regression was introduced by
aeb935a45581 ("btrfs: don't set SHAREABLE flag for data reloc tree")
where we stopped setting SHAREABLE for the data reloc tree.

The problem here is we actually do want to update extent references for
data extents in the data reloc tree, in fact we only don't want to
update extent references if the file extents are in the log tree.
Update this check to only skip updating references in the case of the
log tree.

This is relatively rare, because you have to be running scrub at the
same time, which is what btrfs/061 does.  The data reloc inode has its
extents pre-allocated, and then we copy the extent into the
pre-allocated chunks.  We theoretically should never be calling
btrfs_drop_extents() on a data reloc inode.  The exception of course is
with scrub, if our pre-allocated extent falls inside of the block group
we are scrubbing, then the block group will be marked read only and we
will be forced to cow that extent.  This means we will call
btrfs_drop_extents() on that range when we COW that file extent.

This isn't really problematic if we do this, the data reloc inode
requires that our extent lengths match exactly with the extent we are
copying, thankfully we validate the extent is correct with
get_new_location(), so if we happen to COW only part of the extent we
won't link it in when we do the relocation, so we are safe from any
other shenanigans that arise because of this interaction with scrub.

Fixes: aeb935a45581 ("btrfs: don't set SHAREABLE flag for data reloc tree")
CC: stable@vger.kernel.org # 5.8+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/file.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 6ab91661cd261..711483d15c4ce 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -710,8 +710,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
 	if (start >= inode->disk_i_size && !replace_extent)
 		modify_tree = 0;
 
-	update_refs = (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) ||
-		       root == fs_info->tree_root);
+	update_refs = (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID);
 	while (1) {
 		recow = 0;
 		ret = btrfs_lookup_file_extent(trans, root, path, ino,
-- 
GitLab


From 0e32a2b85c7d92ece86c17dfef390c5ed79c6378 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Tue, 5 Oct 2021 16:35:27 -0400
Subject: [PATCH 0328/4878] btrfs: fix abort logic in
 btrfs_replace_file_extents

commit 4afb912f439c4bc4e6a4f3e7547f2e69e354108f upstream.

Error injection testing uncovered a case where we'd end up with a
corrupt file system with a missing extent in the middle of a file.  This
occurs because the if statement to decide if we should abort is wrong.

The only way we would abort in this case is if we got a ret !=
-EOPNOTSUPP and we called from the file clone code.  However the
prealloc code uses this path too.  Instead we need to abort if there is
an error, and the only error we _don't_ abort on is -EOPNOTSUPP and only
if we came from the clone file code.

CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/file.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 711483d15c4ce..f59ec55e5feb2 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2661,14 +2661,16 @@ int btrfs_replace_file_extents(struct inode *inode, struct btrfs_path *path,
 					   1, 0, 0, NULL);
 		if (ret != -ENOSPC) {
 			/*
-			 * When cloning we want to avoid transaction aborts when
-			 * nothing was done and we are attempting to clone parts
-			 * of inline extents, in such cases -EOPNOTSUPP is
-			 * returned by __btrfs_drop_extents() without having
-			 * changed anything in the file.
+			 * The only time we don't want to abort is if we are
+			 * attempting to clone a partial inline extent, in which
+			 * case we'll get EOPNOTSUPP.  However if we aren't
+			 * clone we need to abort no matter what, because if we
+			 * got EOPNOTSUPP via prealloc then we messed up and
+			 * need to abort.
 			 */
-			if (extent_info && !extent_info->is_new_extent &&
-			    ret && ret != -EOPNOTSUPP)
+			if (ret &&
+			    (ret != -EOPNOTSUPP ||
+			     (extent_info && extent_info->is_new_extent)))
 				btrfs_abort_transaction(trans, ret);
 			break;
 		}
-- 
GitLab


From e4f7171c2395fd822585e721c25e1039759ed11d Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Fri, 17 Sep 2021 16:59:58 +0000
Subject: [PATCH 0329/4878] x86/resctrl: Free the ctrlval arrays when
 domain_setup_mon_state() fails

commit 64e87d4bd3201bf8a4685083ee4daf5c0d001452 upstream.

domain_add_cpu() is called whenever a CPU is brought online. The
earlier call to domain_setup_ctrlval() allocates the control value
arrays.

If domain_setup_mon_state() fails, the control value arrays are not
freed.

Add the missing kfree() calls.

Fixes: 1bd2a63b4f0de ("x86/intel_rdt/mba_sc: Add initialization support")
Fixes: edf6fa1c4a951 ("x86/intel_rdt/cqm: Add RMID (Resource monitoring ID) management")
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20210917165958.28313-1-james.morse@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/resctrl/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index e8b5f1cf1ae8c..4ccb9039f5950 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -590,6 +590,8 @@ static void domain_add_cpu(int cpu, struct rdt_resource *r)
 	}
 
 	if (r->mon_capable && domain_setup_mon_state(r, d)) {
+		kfree(d->ctrl_val);
+		kfree(d->mbps_val);
 		kfree(d);
 		return;
 	}
-- 
GitLab


From 9f0d6c781cb5ebb03a2ae80d94cfedf2e0d1b4e3 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 1 Oct 2021 20:36:44 +0300
Subject: [PATCH 0330/4878] mei: me: add Ice Lake-N device id.

commit 75c10c5e7a715550afdd51ef8cfd1d975f48f9e1 upstream.

Add Ice Lake-N device ID.

The device can be found on MacBookPro16,2 [1].

[1]: https://linux-hardware.org/?probe=f1c5cf0c43

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211001173644.16068-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/hw-me-regs.h | 1 +
 drivers/misc/mei/pci-me.c     | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index cb34925e10f15..67bb6a25fd0a0 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -92,6 +92,7 @@
 #define MEI_DEV_ID_CDF        0x18D3  /* Cedar Fork */
 
 #define MEI_DEV_ID_ICP_LP     0x34E0  /* Ice Lake Point LP */
+#define MEI_DEV_ID_ICP_N      0x38E0  /* Ice Lake Point N */
 
 #define MEI_DEV_ID_JSP_N      0x4DE0  /* Jasper Lake Point N */
 
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index c3393b383e598..3a45aaf002ac8 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -96,6 +96,7 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_H_3, MEI_ME_PCH8_ITOUCH_CFG)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_ICP_LP, MEI_ME_PCH12_CFG)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_ICP_N, MEI_ME_PCH12_CFG)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_TGP_LP, MEI_ME_PCH15_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_TGP_H, MEI_ME_PCH15_SPS_CFG)},
-- 
GitLab


From 0ee66290f00602d91413a3779b0f5ee7e7dd51d9 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 8 Oct 2021 12:25:45 +0300
Subject: [PATCH 0331/4878] USB: xhci: dbc: fix tty registration race

commit 880de403777376e50bdf60def359fa50a722006f upstream.

Make sure to allocate resources before registering the tty device to
avoid having a racing open() and write() fail to enable rx or
dereference a NULL pointer when accessing the uninitialised fifo.

Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver")
Cc: stable@vger.kernel.org      # 4.16
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211008092547.3996295-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-dbgtty.c | 28 +++++++++++++---------------
 1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c
index ae4e4ab638b55..2a53b28319999 100644
--- a/drivers/usb/host/xhci-dbgtty.c
+++ b/drivers/usb/host/xhci-dbgtty.c
@@ -408,40 +408,38 @@ static int xhci_dbc_tty_register_device(struct xhci_dbc *dbc)
 		return -EBUSY;
 
 	xhci_dbc_tty_init_port(dbc, port);
-	tty_dev = tty_port_register_device(&port->port,
-					   dbc_tty_driver, 0, NULL);
-	if (IS_ERR(tty_dev)) {
-		ret = PTR_ERR(tty_dev);
-		goto register_fail;
-	}
 
 	ret = kfifo_alloc(&port->write_fifo, DBC_WRITE_BUF_SIZE, GFP_KERNEL);
 	if (ret)
-		goto buf_alloc_fail;
+		goto err_exit_port;
 
 	ret = xhci_dbc_alloc_requests(dbc, BULK_IN, &port->read_pool,
 				      dbc_read_complete);
 	if (ret)
-		goto request_fail;
+		goto err_free_fifo;
 
 	ret = xhci_dbc_alloc_requests(dbc, BULK_OUT, &port->write_pool,
 				      dbc_write_complete);
 	if (ret)
-		goto request_fail;
+		goto err_free_requests;
+
+	tty_dev = tty_port_register_device(&port->port,
+					   dbc_tty_driver, 0, NULL);
+	if (IS_ERR(tty_dev)) {
+		ret = PTR_ERR(tty_dev);
+		goto err_free_requests;
+	}
 
 	port->registered = true;
 
 	return 0;
 
-request_fail:
+err_free_requests:
 	xhci_dbc_free_requests(&port->read_pool);
 	xhci_dbc_free_requests(&port->write_pool);
+err_free_fifo:
 	kfifo_free(&port->write_fifo);
-
-buf_alloc_fail:
-	tty_unregister_device(dbc_tty_driver, 0);
-
-register_fail:
+err_exit_port:
 	xhci_dbc_tty_exit_port(port);
 
 	dev_err(dbc->dev, "can't register tty port, err %d\n", ret);
-- 
GitLab


From dc3e0a20dbb9dbaa22f4a33dea34230f8c663c40 Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.com>
Date: Fri, 8 Oct 2021 12:25:43 +0300
Subject: [PATCH 0332/4878] xhci: guard accesses to ep_state in
 xhci_endpoint_reset()

commit a01ba2a3378be85538e0183ae5367c1bc1d5aaf3 upstream.

See https://github.com/raspberrypi/linux/issues/3981

Two read-modify-write cycles on ep->ep_state are not guarded by
xhci->lock. Fix these.

Fixes: f5249461b504 ("xhci: Clear the host side toggle manually when endpoint is soft reset")
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211008092547.3996295-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 6389dc99bc9a4..0d6dc2e20f2aa 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3173,10 +3173,13 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
 		return;
 
 	/* Bail out if toggle is already being cleared by a endpoint reset */
+	spin_lock_irqsave(&xhci->lock, flags);
 	if (ep->ep_state & EP_HARD_CLEAR_TOGGLE) {
 		ep->ep_state &= ~EP_HARD_CLEAR_TOGGLE;
+		spin_unlock_irqrestore(&xhci->lock, flags);
 		return;
 	}
+	spin_unlock_irqrestore(&xhci->lock, flags);
 	/* Only interrupt and bulk ep's use data toggle, USB2 spec 5.5.4-> */
 	if (usb_endpoint_xfer_control(&host_ep->desc) ||
 	    usb_endpoint_xfer_isoc(&host_ep->desc))
@@ -3262,8 +3265,10 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
 	xhci_free_command(xhci, cfg_cmd);
 cleanup:
 	xhci_free_command(xhci, stop_cmd);
+	spin_lock_irqsave(&xhci->lock, flags);
 	if (ep->ep_state & EP_SOFT_CLEAR_TOGGLE)
 		ep->ep_state &= ~EP_SOFT_CLEAR_TOGGLE;
+	spin_unlock_irqrestore(&xhci->lock, flags);
 }
 
 static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,
-- 
GitLab


From dec944bb7079b37968cf69c8a438f91f15c4cc61 Mon Sep 17 00:00:00 2001
From: Pavankumar Kondeti <pkondeti@codeaurora.org>
Date: Fri, 8 Oct 2021 12:25:46 +0300
Subject: [PATCH 0333/4878] xhci: Fix command ring pointer corruption while
 aborting a command

commit ff0e50d3564f33b7f4b35cadeabd951d66cfc570 upstream.

The command ring pointer is located at [6:63] bits of the command
ring control register (CRCR). All the control bits like command stop,
abort are located at [0:3] bits. While aborting a command, we read the
CRCR and set the abort bit and write to the CRCR. The read will always
give command ring pointer as all zeros. So we essentially write only
the control bits. Since we split the 64 bit write into two 32 bit writes,
there is a possibility of xHC command ring stopped before the upper
dword (all zeros) is written. If that happens, xHC updates the upper
dword of its internal command ring pointer with all zeros. Next time,
when the command ring is restarted, we see xHC memory access failures.
Fix this issue by only writing to the lower dword of CRCR where all
control bits are located.

Cc: stable@vger.kernel.org
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211008092547.3996295-5-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-ring.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index dc2068e3bedb7..ec8f2910faf97 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -342,16 +342,22 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
 /* Must be called with xhci->lock held, releases and aquires lock back */
 static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 {
-	u64 temp_64;
+	u32 temp_32;
 	int ret;
 
 	xhci_dbg(xhci, "Abort command ring\n");
 
 	reinit_completion(&xhci->cmd_ring_stop_completion);
 
-	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
-	xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
-			&xhci->op_regs->cmd_ring);
+	/*
+	 * The control bits like command stop, abort are located in lower
+	 * dword of the command ring control register. Limit the write
+	 * to the lower dword to avoid corrupting the command ring pointer
+	 * in case if the command ring is stopped by the time upper dword
+	 * is written.
+	 */
+	temp_32 = readl(&xhci->op_regs->cmd_ring);
+	writel(temp_32 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring);
 
 	/* Section 4.6.1.2 of xHCI 1.0 spec says software should also time the
 	 * completion of the Command Abort operation. If CRR is not negated in 5
-- 
GitLab


From d40e193abd073d8bf39ae9979633761f032c0a75 Mon Sep 17 00:00:00 2001
From: Nikolay Martynov <mar.kolya@gmail.com>
Date: Fri, 8 Oct 2021 12:25:47 +0300
Subject: [PATCH 0334/4878] xhci: Enable trust tx length quirk for Fresco FL11
 USB controller

commit ea0f69d8211963c4b2cc1998b86779a500adb502 upstream.

Tested on SD5200T TB3 dock which has Fresco Logic FL1100 USB 3.0 Host
Controller.
Before this patch streaming video from USB cam made mouse and keyboard
connected to the same USB bus unusable. Also video was jerky.
With this patch streaming video doesn't have any effect on other
periferals and video is smooth.

Cc: stable@vger.kernel.org
Signed-off-by: Nikolay Martynov <mar.kolya@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211008092547.3996295-6-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 119d1a8fbb194..2299866dc82ff 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -30,6 +30,7 @@
 #define PCI_VENDOR_ID_FRESCO_LOGIC	0x1b73
 #define PCI_DEVICE_ID_FRESCO_LOGIC_PDK	0x1000
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009	0x1009
+#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100	0x1100
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400	0x1400
 
 #define PCI_VENDOR_ID_ETRON		0x1b6f
@@ -112,6 +113,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	/* Look for vendor-specific quirks */
 	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
 			(pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
+			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 ||
 			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) {
 		if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
 				pdev->revision == 0x0) {
-- 
GitLab


From 2c5dd2a8af7704776376c8885d3b78d2442c32ed Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 27 Sep 2021 14:13:57 +0200
Subject: [PATCH 0335/4878] cb710: avoid NULL pointer subtraction

commit 42641042c10c757fe10cc09088cf3f436cec5007 upstream.

clang-14 complains about an unusual way of converting a pointer to
an integer:

drivers/misc/cb710/sgbuf2.c:50:15: error: performing pointer subtraction with a null pointer has undefined behavior [-Werror,-Wnull-pointer-subtraction]
        return ((ptr - NULL) & 3) != 0;

Replace this with a normal cast to uintptr_t.

Fixes: 5f5bac8272be ("mmc: Driver for CB710/720 memory card reader (MMC part)")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210927121408.939246-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/cb710/sgbuf2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/cb710/sgbuf2.c b/drivers/misc/cb710/sgbuf2.c
index e5a4ed3701eb8..a798fad5f03c2 100644
--- a/drivers/misc/cb710/sgbuf2.c
+++ b/drivers/misc/cb710/sgbuf2.c
@@ -47,7 +47,7 @@ static inline bool needs_unaligned_copy(const void *ptr)
 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 	return false;
 #else
-	return ((ptr - NULL) & 3) != 0;
+	return ((uintptr_t)ptr & 3) != 0;
 #endif
 }
 
-- 
GitLab


From 5100dc4489ab7497da9c062cb6a781a5ba04d51b Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@kernel.org>
Date: Wed, 1 Sep 2021 08:33:19 +0200
Subject: [PATCH 0336/4878] efi/cper: use stack buffer for error record
 decoding

commit b3a72ca80351917cc23f9e24c35f3c3979d3c121 upstream.

Joe reports that using a statically allocated buffer for converting CPER
error records into human readable text is probably a bad idea. Even
though we are not aware of any actual issues, a stack buffer is clearly
a better choice here anyway, so let's move the buffer into the stack
frames of the two functions that refer to it.

Cc: <stable@vger.kernel.org>
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/efi/cper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
index ea7ca74fc1730..232c092c4c970 100644
--- a/drivers/firmware/efi/cper.c
+++ b/drivers/firmware/efi/cper.c
@@ -25,8 +25,6 @@
 #include <acpi/ghes.h>
 #include <ras/ras_event.h>
 
-static char rcd_decode_str[CPER_REC_LEN];
-
 /*
  * CPER record ID need to be unique even after reboot, because record
  * ID is used as index for ERST storage, while CPER records from
@@ -313,6 +311,7 @@ const char *cper_mem_err_unpack(struct trace_seq *p,
 				struct cper_mem_err_compact *cmem)
 {
 	const char *ret = trace_seq_buffer_ptr(p);
+	char rcd_decode_str[CPER_REC_LEN];
 
 	if (cper_mem_err_location(cmem, rcd_decode_str))
 		trace_seq_printf(p, "%s", rcd_decode_str);
@@ -327,6 +326,7 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem,
 	int len)
 {
 	struct cper_mem_err_compact cmem;
+	char rcd_decode_str[CPER_REC_LEN];
 
 	/* Don't trust UEFI 2.1/2.2 structure with bad validation bits */
 	if (len == sizeof(struct cper_sec_mem_err_old) &&
-- 
GitLab


From 3b42751401424a1c0f39297b7f4317598aa33474 Mon Sep 17 00:00:00 2001
From: Zhang Jianhua <chris.zjh@huawei.com>
Date: Thu, 23 Sep 2021 10:53:40 +0800
Subject: [PATCH 0337/4878] efi: Change down_interruptible() in
 virt_efi_reset_system() to down_trylock()

commit 38fa3206bf441911258e5001ac8b6738693f8d82 upstream.

While reboot the system by sysrq, the following bug will be occur.

BUG: sleeping function called from invalid context at kernel/locking/semaphore.c:90
in_atomic(): 0, irqs_disabled(): 128, non_block: 0, pid: 10052, name: rc.shutdown
CPU: 3 PID: 10052 Comm: rc.shutdown Tainted: G        W O      5.10.0 #1
Call trace:
 dump_backtrace+0x0/0x1c8
 show_stack+0x18/0x28
 dump_stack+0xd0/0x110
 ___might_sleep+0x14c/0x160
 __might_sleep+0x74/0x88
 down_interruptible+0x40/0x118
 virt_efi_reset_system+0x3c/0xd0
 efi_reboot+0xd4/0x11c
 machine_restart+0x60/0x9c
 emergency_restart+0x1c/0x2c
 sysrq_handle_reboot+0x1c/0x2c
 __handle_sysrq+0xd0/0x194
 write_sysrq_trigger+0xbc/0xe4
 proc_reg_write+0xd4/0xf0
 vfs_write+0xa8/0x148
 ksys_write+0x6c/0xd8
 __arm64_sys_write+0x18/0x28
 el0_svc_common.constprop.3+0xe4/0x16c
 do_el0_svc+0x1c/0x2c
 el0_svc+0x20/0x30
 el0_sync_handler+0x80/0x17c
 el0_sync+0x158/0x180

The reason for this problem is that irq has been disabled in
machine_restart() and then it calls down_interruptible() in
virt_efi_reset_system(), which would occur sleep in irq context,
it is dangerous! Commit 99409b935c9a("locking/semaphore: Add
might_sleep() to down_*() family") add might_sleep() in
down_interruptible(), so the bug info is here. down_trylock()
can solve this problem, cause there is no might_sleep.

--------

Cc: <stable@vger.kernel.org>
Signed-off-by: Zhang Jianhua <chris.zjh@huawei.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/efi/runtime-wrappers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/runtime-wrappers.c b/drivers/firmware/efi/runtime-wrappers.c
index 1410beaef5c30..f3e54f6616f02 100644
--- a/drivers/firmware/efi/runtime-wrappers.c
+++ b/drivers/firmware/efi/runtime-wrappers.c
@@ -414,7 +414,7 @@ static void virt_efi_reset_system(int reset_type,
 				  unsigned long data_size,
 				  efi_char16_t *data)
 {
-	if (down_interruptible(&efi_runtime_lock)) {
+	if (down_trylock(&efi_runtime_lock)) {
 		pr_warn("failed to invoke the reset_system() runtime service:\n"
 			"could not get exclusive access to the firmware\n");
 		return;
-- 
GitLab


From 9d89e287116796bf987cc48f5c8632ef3048f8eb Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 6 Oct 2021 00:16:31 +0200
Subject: [PATCH 0338/4878] usb: musb: dsps: Fix the probe error path

commit c2115b2b16421d93d4993f3fe4c520e91d6fe801 upstream.

Commit 7c75bde329d7 ("usb: musb: musb_dsps: request_irq() after
initializing musb") has inverted the calls to
dsps_setup_optional_vbus_irq() and dsps_create_musb_pdev() without
updating correctly the error path. dsps_create_musb_pdev() allocates and
registers a new platform device which must be unregistered and freed
with platform_device_unregister(), and this is missing upon
dsps_setup_optional_vbus_irq() error.

While on the master branch it seems not to trigger any issue, I observed
a kernel crash because of a NULL pointer dereference with a v5.10.70
stable kernel where the patch mentioned above was backported. With this
kernel version, -EPROBE_DEFER is returned the first time
dsps_setup_optional_vbus_irq() is called which triggers the probe to
error out without unregistering the platform device. Unfortunately, on
the Beagle Bone Black Wireless, the platform device still living in the
system is being used by the USB Ethernet gadget driver, which during the
boot phase triggers the crash.

My limited knowledge of the musb world prevents me to revert this commit
which was sent to silence a robot warning which, as far as I understand,
does not make sense. The goal of this patch was to prevent an IRQ to
fire before the platform device being registered. I think this cannot
ever happen due to the fact that enabling the interrupts is done by the
->enable() callback of the platform musb device, and this platform
device must be already registered in order for the core or any other
user to use this callback.

Hence, I decided to fix the error path, which might prevent future
errors on mainline kernels while also fixing older ones.

Fixes: 7c75bde329d7 ("usb: musb: musb_dsps: request_irq() after initializing musb")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20211005221631.1529448-1-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/musb/musb_dsps.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index ce9fc46c92661..b5935834f9d24 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -899,11 +899,13 @@ static int dsps_probe(struct platform_device *pdev)
 	if (usb_get_dr_mode(&pdev->dev) == USB_DR_MODE_PERIPHERAL) {
 		ret = dsps_setup_optional_vbus_irq(pdev, glue);
 		if (ret)
-			goto err;
+			goto unregister_pdev;
 	}
 
 	return 0;
 
+unregister_pdev:
+	platform_device_unregister(glue->musb);
 err:
 	pm_runtime_disable(&pdev->dev);
 	iounmap(glue->usbss_base);
-- 
GitLab


From 3147f57215887de916811d80acdf3f5671ddf515 Mon Sep 17 00:00:00 2001
From: Michael Cullen <michael@michaelcullen.name>
Date: Fri, 15 Oct 2021 13:17:50 -0700
Subject: [PATCH 0339/4878] Input: xpad - add support for another USB ID of
 Nacon GC-100

commit 3378a07daa6cdd11e042797454c706d1c69f9ca6 upstream.

The Nacon GX100XF is already mapped, but it seems there is a Nacon
GC-100 (identified as NC5136Wht PCGC-100WHITE though I believe other
colours exist) with a different USB ID when in XInput mode.

Signed-off-by: Michael Cullen <michael@michaelcullen.name>
Link: https://lore.kernel.org/r/20211015192051.5196-1-michael@michaelcullen.name
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/joystick/xpad.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index e5f1e3cf9179f..ba101afcfc27f 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -331,6 +331,7 @@ static const struct xpad_device {
 	{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
 	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
 	{ 0x24c6, 0xfafe, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x3285, 0x0607, "Nacon GC-100", 0, XTYPE_XBOX360 },
 	{ 0x3767, 0x0101, "Fanatec Speedster 3 Forceshock Wheel", 0, XTYPE_XBOX },
 	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
 	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
@@ -447,6 +448,7 @@ static const struct usb_device_id xpad_table[] = {
 	XPAD_XBOXONE_VENDOR(0x24c6),		/* PowerA Controllers */
 	XPAD_XBOXONE_VENDOR(0x2e24),		/* Hyperkin Duke X-Box One pad */
 	XPAD_XBOX360_VENDOR(0x2f24),		/* GameSir Controllers */
+	XPAD_XBOX360_VENDOR(0x3285),		/* Nacon GC-100 */
 	{ }
 };
 
-- 
GitLab


From d4b77900cffe7ccaefcf7fa3a3a5b06a882b282c Mon Sep 17 00:00:00 2001
From: Aleksander Morgado <aleksander@aleksander.es>
Date: Thu, 7 Oct 2021 14:25:01 +0200
Subject: [PATCH 0340/4878] USB: serial: qcserial: add EM9191 QDL support

commit 11c52d250b34a0862edc29db03fbec23b30db6da upstream.

When the module boots into QDL download mode it exposes the 1199:90d2
ids, which can be mapped to the qcserial driver, and used to run
firmware upgrades (e.g. with the qmi-firmware-update program).

  T:  Bus=01 Lev=03 Prnt=08 Port=03 Cnt=01 Dev#= 10 Spd=480 MxCh= 0
  D:  Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
  P:  Vendor=1199 ProdID=90d2 Rev=00.00
  S:  Manufacturer=Sierra Wireless, Incorporated
  S:  Product=Sierra Wireless EM9191
  S:  SerialNumber=8W0382004102A109
  C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=2mA
  I:  If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=10 Driver=qcserial

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/qcserial.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 83da8236e3c8b..c18bf8164bc2e 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -165,6 +165,7 @@ static const struct usb_device_id id_table[] = {
 	{DEVICE_SWI(0x1199, 0x907b)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x1199, 0x9090)},	/* Sierra Wireless EM7565 QDL */
 	{DEVICE_SWI(0x1199, 0x9091)},	/* Sierra Wireless EM7565 */
+	{DEVICE_SWI(0x1199, 0x90d2)},	/* Sierra Wireless EM9191 QDL */
 	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
-- 
GitLab


From bf26bc72dc5927b28480f0983c447f789eb89ef7 Mon Sep 17 00:00:00 2001
From: Yu-Tung Chang <mtwget@gmail.com>
Date: Thu, 30 Sep 2021 10:11:12 +0800
Subject: [PATCH 0341/4878] USB: serial: option: add Quectel EC200S-CN module
 support

commit 2263eb7370060bdb0013bc14e1a7c9bf33617a55 upstream.

Add usb product id of the Quectel EC200S-CN module.

usb-devices output for 0x6002:
T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  3 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=6002 Rev=03.18
S:  Manufacturer=Android
S:  Product=Android
S:  SerialNumber=0000
C:  #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=06 Prot=00 Driver=cdc_ether
I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
I:  If#=0x2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)

Signed-off-by: Yu-Tung Chang <mtwget@gmail.com>
Link: https://lore.kernel.org/r/20210930021112.330396-1-mtwget@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 1e990a8264a53..07ad5b8df22c3 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -251,6 +251,7 @@ static void option_instat_callback(struct urb *urb);
 #define QUECTEL_PRODUCT_EP06			0x0306
 #define QUECTEL_PRODUCT_EM12			0x0512
 #define QUECTEL_PRODUCT_RM500Q			0x0800
+#define QUECTEL_PRODUCT_EC200S_CN		0x6002
 #define QUECTEL_PRODUCT_EC200T			0x6026
 
 #define CMOTECH_VENDOR_ID			0x16d8
@@ -1128,6 +1129,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x10),
 	  .driver_info = ZLP },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
 
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
-- 
GitLab


From ecad614b0c6885761d0decdc1291749a0876dd4f Mon Sep 17 00:00:00 2001
From: Daniele Palmas <dnlplm@gmail.com>
Date: Mon, 4 Oct 2021 12:56:55 +0200
Subject: [PATCH 0342/4878] USB: serial: option: add Telit LE910Cx composition
 0x1204

commit f5a8a07edafed8bede17a95ef8940fe3a57a77d5 upstream.

Add the following Telit LE910Cx composition:

0x1204: tty, adb, mbim, tty, tty, tty, tty

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Link: https://lore.kernel.org/r/20211004105655.8515-1-dnlplm@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 07ad5b8df22c3..2ac8a800ec548 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1229,6 +1229,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1203, 0xff),	/* Telit LE910Cx (RNDIS) */
 	  .driver_info = NCTRL(2) | RSVD(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1204, 0xff),	/* Telit LE910Cx (MBIM) */
+	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
-- 
GitLab


From 3f0ca245a834119536e0d054ae3b5f85cb12628b Mon Sep 17 00:00:00 2001
From: Tomaz Solc <tomaz.solc@tablix.org>
Date: Wed, 6 Oct 2021 14:57:50 +0200
Subject: [PATCH 0343/4878] USB: serial: option: add prod. id for Quectel EG91

commit c184accc4a42c7872dc8e8d0fc97a740dc61fe24 upstream.

Adding support for Quectel EG91 LTE module.

The interface layout is same as for EG95.

usb-devices output:
T:  Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#=  3 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=0191 Rev=03.18
S:  Manufacturer=Android
S:  Product=Android
C:  #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan

Interfaces:

0: Diag
1: GNSS
2: AT-command interface/modem
3: Modem
4: QMI

Signed-off-by: Tomaz Solc <tomaz.solc@tablix.org>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 2ac8a800ec548..c7356718a7c66 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -246,6 +246,7 @@ static void option_instat_callback(struct urb *urb);
 /* These Quectel products use Quectel's vendor ID */
 #define QUECTEL_PRODUCT_EC21			0x0121
 #define QUECTEL_PRODUCT_EC25			0x0125
+#define QUECTEL_PRODUCT_EG91			0x0191
 #define QUECTEL_PRODUCT_EG95			0x0195
 #define QUECTEL_PRODUCT_BG96			0x0296
 #define QUECTEL_PRODUCT_EP06			0x0306
@@ -1112,6 +1113,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0xff, 0xff),
 	  .driver_info = NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0, 0) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG91, 0xff, 0xff, 0xff),
+	  .driver_info = NUMEP2 },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG91, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0xff, 0xff),
 	  .driver_info = NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
-- 
GitLab


From 86e3ad8b759d1152d69442a4bb36cfa65448c9e7 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Wed, 22 Sep 2021 16:43:26 +0100
Subject: [PATCH 0344/4878] misc: fastrpc: Add missing lock before accessing
 find_vma()

commit f9a470db2736b01538ad193c316eb3f26be37d58 upstream.

fastrpc driver is using find_vma() without any protection, as a
result we see below warning due to recent patch 5b78ed24e8ec
("mm/pagemap: add mmap_assert_locked() annotations to find_vma*()")
which added mmap_assert_locked() in find_vma() function.

This bug went un-noticed in previous versions. Fix this issue by adding
required protection while calling find_vma().

CPU: 0 PID: 209746 Comm: benchmark_model Not tainted 5.15.0-rc2-00445-ge14fe2bf817a-dirty #969
Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : find_vma+0x64/0xd0
lr : find_vma+0x60/0xd0
sp : ffff8000158ebc40
...

Call trace:
 find_vma+0x64/0xd0
 fastrpc_internal_invoke+0x570/0xda8
 fastrpc_device_ioctl+0x3e0/0x928
 __arm64_sys_ioctl+0xac/0xf0
 invoke_syscall+0x44/0x100
 el0_svc_common.constprop.3+0x70/0xf8
 do_el0_svc+0x24/0x88
 el0_svc+0x3c/0x138
 el0t_64_sync_handler+0x90/0xb8
 el0t_64_sync+0x180/0x184

Fixes: 80f3afd72bd4 ("misc: fastrpc: consider address offset before sending to DSP")
Cc: stable@vger.kernel.org
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210922154326.8927-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/fastrpc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 273d9c1591793..a9c9d86eef4bc 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -812,10 +812,12 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)
 			rpra[i].pv = (u64) ctx->args[i].ptr;
 			pages[i].addr = ctx->maps[i]->phys;
 
+			mmap_read_lock(current->mm);
 			vma = find_vma(current->mm, ctx->args[i].ptr);
 			if (vma)
 				pages[i].addr += ctx->args[i].ptr -
 						 vma->vm_start;
+			mmap_read_unlock(current->mm);
 
 			pg_start = (ctx->args[i].ptr & PAGE_MASK) >> PAGE_SHIFT;
 			pg_end = ((ctx->args[i].ptr + len - 1) & PAGE_MASK) >>
-- 
GitLab


From 92e6e08ca2b056d0474a599527556c4ecc30ebbf Mon Sep 17 00:00:00 2001
From: Halil Pasic <pasic@linux.ibm.com>
Date: Mon, 11 Oct 2021 07:39:21 +0200
Subject: [PATCH 0345/4878] virtio: write back F_VERSION_1 before validate

commit 2f9a174f918e29608564c7a4e8329893ab604fb4 upstream.

The virtio specification virtio-v1.1-cs01 states: "Transitional devices
MUST detect Legacy drivers by detecting that VIRTIO_F_VERSION_1 has not
been acknowledged by the driver."  This is exactly what QEMU as of 6.1
has done relying solely on VIRTIO_F_VERSION_1 for detecting that.

However, the specification also says: "... the driver MAY read (but MUST
NOT write) the device-specific configuration fields to check that it can
support the device ..." before setting FEATURES_OK.

In that case, any transitional device relying solely on
VIRTIO_F_VERSION_1 for detecting legacy drivers will return data in
legacy format.  In particular, this implies that it is in big endian
format for big endian guests. This naturally confuses the driver which
expects little endian in the modern mode.

It is probably a good idea to amend the spec to clarify that
VIRTIO_F_VERSION_1 can only be relied on after the feature negotiation
is complete. Before validate callback existed, config space was only
read after FEATURES_OK. However, we already have two regressions, so
let's address this here as well.

The regressions affect the VIRTIO_NET_F_MTU feature of virtio-net and
the VIRTIO_BLK_F_BLK_SIZE feature of virtio-blk for BE guests when
virtio 1.0 is used on both sides. The latter renders virtio-blk unusable
with DASD backing, because things simply don't work with the default.
See Fixes tags for relevant commits.

For QEMU, we can work around the issue by writing out the feature bits
with VIRTIO_F_VERSION_1 bit set.  We (ab)use the finalize_features
config op for this. This isn't enough to address all vhost devices since
these do not get the features until FEATURES_OK, however it looks like
the affected devices actually never handled the endianness for legacy
mode correctly, so at least that's not a regression.

No devices except virtio net and virtio blk seem to be affected.

Long term the right thing to do is to fix the hypervisors.

Cc: <stable@vger.kernel.org> #v4.11
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Fixes: 82e89ea077b9 ("virtio-blk: Add validation for block size in config space")
Fixes: fe36cbe0671e ("virtio_net: clear MTU when out of range")
Reported-by: markver@us.ibm.com
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20211011053921.1198936-1-pasic@linux.ibm.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virtio/virtio.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 84b5dec5d29cd..5c53098755a35 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -240,6 +240,17 @@ static int virtio_dev_probe(struct device *_d)
 		driver_features_legacy = driver_features;
 	}
 
+	/*
+	 * Some devices detect legacy solely via F_VERSION_1. Write
+	 * F_VERSION_1 to force LE config space accesses before FEATURES_OK for
+	 * these when needed.
+	 */
+	if (drv->validate && !virtio_legacy_is_little_endian()
+			  && device_features & BIT_ULL(VIRTIO_F_VERSION_1)) {
+		dev->features = BIT_ULL(VIRTIO_F_VERSION_1);
+		dev->config->finalize_features(dev);
+	}
+
 	if (device_features & (1ULL << VIRTIO_F_VERSION_1))
 		dev->features = driver_features & device_features;
 	else
-- 
GitLab


From a7bd0dd3f2ed4630a0250b46e53752d3f38831d7 Mon Sep 17 00:00:00 2001
From: Hans Potsch <hans.potsch@nokia.com>
Date: Wed, 6 Oct 2021 14:13:32 +0200
Subject: [PATCH 0346/4878] EDAC/armada-xp: Fix output of uncorrectable error
 counter

commit d9b7748ffc45250b4d7bcf22404383229bc495f5 upstream.

The number of correctable errors is displayed as uncorrectable
errors because the "SBE" error count is passed to both calls of
edac_mc_handle_error().

Pass the correct uncorrectable error count to the second
edac_mc_handle_error() call when logging uncorrectable errors.

 [ bp: Massage commit message. ]

Fixes: 7f6998a41257 ("ARM: 8888/1: EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC")
Signed-off-by: Hans Potsch <hans.potsch@nokia.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20211006121332.58788-1-hans.potsch@nokia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/armada_xp_edac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/armada_xp_edac.c b/drivers/edac/armada_xp_edac.c
index e3e757513d1bc..b1f46a974b9e0 100644
--- a/drivers/edac/armada_xp_edac.c
+++ b/drivers/edac/armada_xp_edac.c
@@ -178,7 +178,7 @@ static void axp_mc_check(struct mem_ctl_info *mci)
 				     "details unavailable (multiple errors)");
 	if (cnt_dbe)
 		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
-				     cnt_sbe, /* error count */
+				     cnt_dbe, /* error count */
 				     0, 0, 0, /* pfn, offset, syndrome */
 				     -1, -1, -1, /* top, mid, low layer */
 				     mci->ctl_name,
-- 
GitLab


From 57e48886401b14cd351423fabfec2cfd18df4f66 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <swboyd@chromium.org>
Date: Wed, 13 Oct 2021 13:45:11 +0100
Subject: [PATCH 0347/4878] nvmem: Fix shift-out-of-bound (UBSAN) with byte
 size cells

commit 5d388fa01fa6eb310ac023a363a6cb216d9d8fe9 upstream.

If a cell has 'nbits' equal to a multiple of BITS_PER_BYTE the logic

 *p &= GENMASK((cell->nbits%BITS_PER_BYTE) - 1, 0);

will become undefined behavior because nbits modulo BITS_PER_BYTE is 0, and we
subtract one from that making a large number that is then shifted more than the
number of bits that fit into an unsigned long.

UBSAN reports this problem:

 UBSAN: shift-out-of-bounds in drivers/nvmem/core.c:1386:8
 shift exponent 64 is too large for 64-bit type 'unsigned long'
 CPU: 6 PID: 7 Comm: kworker/u16:0 Not tainted 5.15.0-rc3+ #9
 Hardware name: Google Lazor (rev3+) with KB Backlight (DT)
 Workqueue: events_unbound deferred_probe_work_func
 Call trace:
  dump_backtrace+0x0/0x170
  show_stack+0x24/0x30
  dump_stack_lvl+0x64/0x7c
  dump_stack+0x18/0x38
  ubsan_epilogue+0x10/0x54
  __ubsan_handle_shift_out_of_bounds+0x180/0x194
  __nvmem_cell_read+0x1ec/0x21c
  nvmem_cell_read+0x58/0x94
  nvmem_cell_read_variable_common+0x4c/0xb0
  nvmem_cell_read_variable_le_u32+0x40/0x100
  a6xx_gpu_init+0x170/0x2f4
  adreno_bind+0x174/0x284
  component_bind_all+0xf0/0x264
  msm_drm_bind+0x1d8/0x7a0
  try_to_bring_up_master+0x164/0x1ac
  __component_add+0xbc/0x13c
  component_add+0x20/0x2c
  dp_display_probe+0x340/0x384
  platform_probe+0xc0/0x100
  really_probe+0x110/0x304
  __driver_probe_device+0xb8/0x120
  driver_probe_device+0x4c/0xfc
  __device_attach_driver+0xb0/0x128
  bus_for_each_drv+0x90/0xdc
  __device_attach+0xc8/0x174
  device_initial_probe+0x20/0x2c
  bus_probe_device+0x40/0xa4
  deferred_probe_work_func+0x7c/0xb8
  process_one_work+0x128/0x21c
  process_scheduled_works+0x40/0x54
  worker_thread+0x1ec/0x2a8
  kthread+0x138/0x158
  ret_from_fork+0x10/0x20

Fix it by making sure there are any bits to mask out.

Fixes: 69aba7948cbe ("nvmem: Add a simple NVMEM framework for consumers")
Cc: Douglas Anderson <dianders@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211013124511.18726-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvmem/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index bb8fb2b3711d4..6b170083cd248 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -1229,7 +1229,8 @@ static void nvmem_shift_read_buffer_in_place(struct nvmem_cell *cell, void *buf)
 		*p-- = 0;
 
 	/* clear msb bits if any leftover in the last byte */
-	*p &= GENMASK((cell->nbits%BITS_PER_BYTE) - 1, 0);
+	if (cell->nbits % BITS_PER_BYTE)
+		*p &= GENMASK((cell->nbits % BITS_PER_BYTE) - 1, 0);
 }
 
 static int __nvmem_cell_read(struct nvmem_device *nvmem,
-- 
GitLab


From 9e46bdfb55a3a2a4f72baa3df6697fc21dcb18bc Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Wed, 6 Oct 2021 19:34:55 +0200
Subject: [PATCH 0348/4878] x86/Kconfig: Do not enable
 AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT automatically

commit 711885906b5c2df90746a51f4cd674f1ab9fbb1d upstream.

This Kconfig option was added initially so that memory encryption is
enabled by default on machines which support it.

However, devices which have DMA masks that are less than the bit
position of the encryption bit, aka C-bit, require the use of an IOMMU
or the use of SWIOTLB.

If the IOMMU is disabled or in passthrough mode, the kernel would switch
to SWIOTLB bounce-buffering for those transfers.

In order to avoid that,

  2cc13bb4f59f ("iommu: Disable passthrough mode when SME is active")

disables the default IOMMU passthrough mode so that devices for which the
default 256K DMA is insufficient, can use the IOMMU instead.

However 2, there are cases where the IOMMU is disabled in the BIOS, etc.
(think the usual hardware folk "oops, I dropped the ball there" cases) or a
driver doesn't properly use the DMA APIs or a device has a firmware or
hardware bug, e.g.:

  ea68573d408f ("drm/amdgpu: Fail to load on RAVEN if SME is active")

However 3, in the above GPU use case, there are APIs like Vulkan and
some OpenGL/OpenCL extensions which are under the assumption that
user-allocated memory can be passed in to the kernel driver and both the
GPU and CPU can do coherent and concurrent access to the same memory.
That cannot work with SWIOTLB bounce buffers, of course.

So, in order for those devices to function, drop the "default y" for the
SME by default active option so that users who want to have SME enabled,
will need to either enable it in their config or use "mem_encrypt=on" on
the kernel command line.

 [ tlendacky: Generalize commit message. ]

Fixes: 7744ccdbc16f ("x86/mm: Add Secure Memory Encryption (SME) support")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/8bbacd0e-4580-3194-19d2-a0ecad7df09c@molgen.mpg.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4201d0cf5f835..c3d9f56c90186 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1534,7 +1534,6 @@ config AMD_MEM_ENCRYPT
 
 config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
 	bool "Activate AMD Secure Memory Encryption (SME) by default"
-	default y
 	depends on AMD_MEM_ENCRYPT
 	help
 	  Say yes to have system memory encrypted by default if running on
-- 
GitLab


From ea947267eb6f21f7127e2c94858e2f981344bc44 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@kaod.org>
Date: Mon, 11 Oct 2021 09:02:03 +0200
Subject: [PATCH 0349/4878] powerpc/xive: Discard disabled interrupts in
 get_irqchip_state()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 6f779e1d359b8d5801f677c1d49dcfa10bf95674 upstream.

When an interrupt is passed through, the KVM XIVE device calls the
set_vcpu_affinity() handler which raises the P bit to mask the
interrupt and to catch any in-flight interrupts while routing the
interrupt to the guest.

On the guest side, drivers (like some Intels) can request at probe
time some MSIs and call synchronize_irq() to check that there are no
in flight interrupts. This will call the XIVE get_irqchip_state()
handler which will always return true as the interrupt P bit has been
set on the host side and lock the CPU in an infinite loop.

Fix that by discarding disabled interrupts in get_irqchip_state().

Fixes: da15c03b047d ("powerpc/xive: Implement get_irqchip_state method for XIVE to fix shutdown race")
Cc: stable@vger.kernel.org #v5.4+
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Tested-by: seeteena <s1seetee@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211011070203.99726-1-clg@kaod.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/sysdev/xive/common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index 5b0f6b6278e3d..6018f73d947da 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -997,7 +997,8 @@ static int xive_get_irqchip_state(struct irq_data *data,
 		 * interrupt to be inactive in that case.
 		 */
 		*state = (pq != XIVE_ESB_INVALID) && !xd->stale_p &&
-			(xd->saved_p || !!(pq & XIVE_ESB_VAL_P));
+			(xd->saved_p || (!!(pq & XIVE_ESB_VAL_P) &&
+			 !irqd_irq_disabled(data)));
 		return 0;
 	default:
 		return -EINVAL;
-- 
GitLab


From b45923f66eb6f5df152411f1872bd01bbc5ec3e8 Mon Sep 17 00:00:00 2001
From: Billy Tsai <billy_tsai@aspeedtech.com>
Date: Tue, 31 Aug 2021 15:14:44 +0800
Subject: [PATCH 0350/4878] iio: adc: aspeed: set driver data when adc probe.

commit eb795cd97365a3d3d9da3926d234a7bc32a3bb15 upstream.

Fix the issue when adc remove will get the null driver data.

Fixed: commit 573803234e72 ("iio: Aspeed ADC")
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20210831071458.2334-2-billy_tsai@aspeedtech.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/aspeed_adc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index 19efaa41bc344..34ec0c28b2dff 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -183,6 +183,7 @@ static int aspeed_adc_probe(struct platform_device *pdev)
 
 	data = iio_priv(indio_dev);
 	data->dev = &pdev->dev;
+	platform_set_drvdata(pdev, indio_dev);
 
 	data->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->base))
-- 
GitLab


From d5f13bbb51046537b2c2b9868177fb8fe8a6a6e9 Mon Sep 17 00:00:00 2001
From: Saravana Kannan <saravanak@google.com>
Date: Tue, 28 Sep 2021 17:07:33 -0700
Subject: [PATCH 0351/4878] drivers: bus: simple-pm-bus: Add support for
 probing simple bus only devices

commit 98e96cf80045a383fcc47c58dd4e87b3ae587b3e upstream.

fw_devlink could end up creating device links for bus only devices.
However, bus only devices don't get probed and can block probe() or
sync_state() [1] call backs of other devices. To avoid this, probe these
devices using the simple-pm-bus driver.

However, there are instances of devices that are not simple buses (they get
probed by their specific drivers) that also list the "simple-bus" (or other
bus only compatible strings) in their compatible property to automatically
populate their child devices. We still want these devices to get probed by
their specific drivers. So, we make sure this driver only probes devices
that are only buses.

[1] - https://lore.kernel.org/lkml/CAPDyKFo9Bxremkb1dDrr4OcXSpE0keVze94Cm=zrkOVxHHxBmQ@mail.gmail.com/

Fixes: c442a0d18744 ("driver core: Set fw_devlink to "permissive" behavior by default")
Cc: stable <stable@vger.kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Tested-by: Saravana Kannan <saravanak@google.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210929000735.585237-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bus/simple-pm-bus.c | 39 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/simple-pm-bus.c b/drivers/bus/simple-pm-bus.c
index c5eb46cbf388b..244b8f3b38b40 100644
--- a/drivers/bus/simple-pm-bus.c
+++ b/drivers/bus/simple-pm-bus.c
@@ -16,7 +16,33 @@
 
 static int simple_pm_bus_probe(struct platform_device *pdev)
 {
-	struct device_node *np = pdev->dev.of_node;
+	const struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	const struct of_device_id *match;
+
+	/*
+	 * Allow user to use driver_override to bind this driver to a
+	 * transparent bus device which has a different compatible string
+	 * that's not listed in simple_pm_bus_of_match. We don't want to do any
+	 * of the simple-pm-bus tasks for these devices, so return early.
+	 */
+	if (pdev->driver_override)
+		return 0;
+
+	match = of_match_device(dev->driver->of_match_table, dev);
+	/*
+	 * These are transparent bus devices (not simple-pm-bus matches) that
+	 * have their child nodes populated automatically.  So, don't need to
+	 * do anything more. We only match with the device if this driver is
+	 * the most specific match because we don't want to incorrectly bind to
+	 * a device that has a more specific driver.
+	 */
+	if (match && match->data) {
+		if (of_property_match_string(np, "compatible", match->compatible) == 0)
+			return 0;
+		else
+			return -ENODEV;
+	}
 
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
@@ -30,14 +56,25 @@ static int simple_pm_bus_probe(struct platform_device *pdev)
 
 static int simple_pm_bus_remove(struct platform_device *pdev)
 {
+	const void *data = of_device_get_match_data(&pdev->dev);
+
+	if (pdev->driver_override || data)
+		return 0;
+
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
 	pm_runtime_disable(&pdev->dev);
 	return 0;
 }
 
+#define ONLY_BUS	((void *) 1) /* Match if the device is only a bus. */
+
 static const struct of_device_id simple_pm_bus_of_match[] = {
 	{ .compatible = "simple-pm-bus", },
+	{ .compatible = "simple-bus",	.data = ONLY_BUS },
+	{ .compatible = "simple-mfd",	.data = ONLY_BUS },
+	{ .compatible = "isa",		.data = ONLY_BUS },
+	{ .compatible = "arm,amba-bus",	.data = ONLY_BUS },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
-- 
GitLab


From be8ef91d61663bfcc79f5c0eb33f9a26ab74de73 Mon Sep 17 00:00:00 2001
From: Saravana Kannan <saravanak@google.com>
Date: Wed, 29 Sep 2021 12:05:49 -0700
Subject: [PATCH 0352/4878] driver core: Reject pointless SYNC_STATE_ONLY
 device links

commit f729a592adb6760013c3e48622a5bf256b992452 upstream.

SYNC_STATE_ONLY device links intentionally allow cycles because cyclic
sync_state() dependencies are valid and necessary.

However a SYNC_STATE_ONLY device link where the consumer and the supplier
are the same device is pointless because the device link would be deleted
as soon as the device probes (because it's also the consumer) and won't
affect when the sync_state() callback is called. It's a waste of CPU cycles
and memory to create this device link. So reject any attempts to create
such a device link.

Fixes: 05ef983e0d65 ("driver core: Add device link support for SYNC_STATE_ONLY flag")
Cc: stable <stable@vger.kernel.org>
Reported-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210929190549.860541-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index a364fe565007c..2bc4db5ffe445 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -549,7 +549,8 @@ struct device_link *device_link_add(struct device *consumer,
 {
 	struct device_link *link;
 
-	if (!consumer || !supplier || flags & ~DL_ADD_VALID_FLAGS ||
+	if (!consumer || !supplier || consumer == supplier ||
+	    flags & ~DL_ADD_VALID_FLAGS ||
 	    (flags & DL_FLAG_STATELESS && flags & DL_MANAGED_LINK_FLAGS) ||
 	    (flags & DL_FLAG_SYNC_STATE_ONLY &&
 	     flags != DL_FLAG_SYNC_STATE_ONLY) ||
-- 
GitLab


From a8177f0576fa8c72024f48775ff3bbb698e8134f Mon Sep 17 00:00:00 2001
From: Alexandru Tachici <alexandru.tachici@analog.com>
Date: Mon, 6 Sep 2021 09:56:28 +0300
Subject: [PATCH 0353/4878] iio: adc: ad7192: Add IRQ flag

commit 89a86da5cb8e0ee153111fb68a719d31582c206b upstream.

IRQ type in ad_sigma_delta_info struct was missing.

In Sigma-Delta devices the SDO line is also used as an interrupt.
Leaving IRQ on level instead of falling might trigger a sample read
when the IRQ is enabled, as the SDO line is already low. Not sure
if SDO line will always immediately go high in ad_sd_buffer_postenable
before the IRQ is enabled.

Also the datasheet seem to explicitly say the falling edge of the SDO
should be used as an interrupt:
>From the AD7192 datasheet: "The DOUT/RDY falling edge can be used
as an interrupt to a processor,"

Fixes: da4d3d6bb9f6 ("iio: adc: ad-sigma-delta: Allow custom IRQ flags")
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210906065630.16325-2-alexandru.tachici@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ad7192.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index 1141cc13a1249..1b8baba9d4d64 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -293,6 +293,7 @@ static const struct ad_sigma_delta_info ad7192_sigma_delta_info = {
 	.has_registers = true,
 	.addr_shift = 3,
 	.read_mask = BIT(6),
+	.irq_flags = IRQF_TRIGGER_FALLING,
 };
 
 static const struct ad_sd_calib_data ad7192_calib_arr[8] = {
-- 
GitLab


From d078043a1775e6564ae70bf849ce183713d13d5b Mon Sep 17 00:00:00 2001
From: Alexandru Tachici <alexandru.tachici@analog.com>
Date: Mon, 6 Sep 2021 09:56:29 +0300
Subject: [PATCH 0354/4878] iio: adc: ad7780: Fix IRQ flag

commit e081102f3077aa716974ccebec97003c890d5641 upstream.

Correct IRQ flag here is falling.

In Sigma-Delta devices the SDO line is also used as an interrupt.
Leaving IRQ on level instead of falling might trigger a sample read
when the IRQ is enabled, as the SDO line is already low. Not sure
if SDO line will always immediately go high in ad_sd_buffer_postenable
before the IRQ is enabled.

Also the datasheet seem to explicitly say the falling edge of the SDO
should be used as an interrupt:
>From the AD7780 datasheet: " The DOUT/Figure 22 RDY falling edge
can be used as an interrupt to a processor"

Fixes: da4d3d6bb9f6 ("iio: adc: ad-sigma-delta: Allow custom IRQ flags")
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210906065630.16325-3-alexandru.tachici@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ad7780.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7780.c b/drivers/iio/adc/ad7780.c
index 42e7e8e595d18..c70048bc791bd 100644
--- a/drivers/iio/adc/ad7780.c
+++ b/drivers/iio/adc/ad7780.c
@@ -203,7 +203,7 @@ static const struct ad_sigma_delta_info ad7780_sigma_delta_info = {
 	.set_mode = ad7780_set_mode,
 	.postprocess_sample = ad7780_postprocess_sample,
 	.has_registers = false,
-	.irq_flags = IRQF_TRIGGER_LOW,
+	.irq_flags = IRQF_TRIGGER_FALLING,
 };
 
 #define _AD7780_CHANNEL(_bits, _wordsize, _mask_all)		\
-- 
GitLab


From 4425d059aa2e907c04771bb6550f31973c843262 Mon Sep 17 00:00:00 2001
From: Alexandru Tachici <alexandru.tachici@analog.com>
Date: Mon, 6 Sep 2021 09:56:30 +0300
Subject: [PATCH 0355/4878] iio: adc: ad7793: Fix IRQ flag

commit 1a913270e57a8e7f1e3789802f1f64e6d0654626 upstream.

In Sigma-Delta devices the SDO line is also used as an interrupt.
Leaving IRQ on level instead of falling might trigger a sample read
when the IRQ is enabled, as the SDO line is already low. Not sure
if SDO line will always immediately go high in ad_sd_buffer_postenable
before the IRQ is enabled.

Also the datasheet seem to explicitly say the falling edge of the SDO
should be used as an interrupt:
>From the AD7793 datasheet: " The DOUT/RDY falling edge can be
used as an interrupt to a processor"

Fixes: da4d3d6bb9f6 ("iio: adc: ad-sigma-delta: Allow custom IRQ flags")
Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210906065630.16325-4-alexandru.tachici@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ad7793.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 440ef4c7be074..7c9c95c252cf8 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -206,7 +206,7 @@ static const struct ad_sigma_delta_info ad7793_sigma_delta_info = {
 	.has_registers = true,
 	.addr_shift = 3,
 	.read_mask = BIT(6),
-	.irq_flags = IRQF_TRIGGER_LOW,
+	.irq_flags = IRQF_TRIGGER_FALLING,
 };
 
 static const struct ad_sd_calib_data ad7793_calib_arr[6] = {
-- 
GitLab


From f931076d32b686014cf31f12cdb2781aa26bff46 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 21 Aug 2021 12:37:24 +0200
Subject: [PATCH 0356/4878] iio: adc128s052: Fix the error handling path of
 'adc128_probe()'

commit bbcf40816b547b3c37af49168950491d20d81ce1 upstream.

A successful 'regulator_enable()' call should be balanced by a
corresponding 'regulator_disable()' call in the error handling path of the
probe, as already done in the remove function.

Update the error handling path accordingly.

Fixes: 913b86468674 ("iio: adc: Add TI ADC128S052")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/85189f1cfcf6f5f7b42d8730966f2a074b07b5f5.1629542160.git.christophe.jaillet@wanadoo.fr
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ti-adc128s052.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
index 3143f35a6509a..83c1ae07b3e9a 100644
--- a/drivers/iio/adc/ti-adc128s052.c
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -171,7 +171,13 @@ static int adc128_probe(struct spi_device *spi)
 	mutex_init(&adc->lock);
 
 	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err_disable_regulator;
 
+	return 0;
+
+err_disable_regulator:
+	regulator_disable(adc->reg);
 	return ret;
 }
 
-- 
GitLab


From 1671cfd31b66fcc90812de0b9d8c8c1e71917ba4 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 18 Aug 2021 13:11:24 +0200
Subject: [PATCH 0357/4878] iio: adc: max1027: Fix wrong shift with 12-bit
 devices
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 732ae19ee8f58ecaf30cbc1bbbda5cbee6a45043 upstream.

10-bit devices must shift the value twice.
This is not needed anymore on 12-bit devices.

Fixes: ae47d009b508 ("iio: adc: max1027: Introduce 12-bit devices support")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210818111139.330636-2-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/max1027.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index ca1dff3924ff9..110a133cc8d47 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -103,7 +103,7 @@ MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids);
 			.sign = 'u',					\
 			.realbits = depth,				\
 			.storagebits = 16,				\
-			.shift = 2,					\
+			.shift = (depth == 10) ? 2 : 0,			\
 			.endianness = IIO_BE,				\
 		},							\
 	}
-- 
GitLab


From e811506f609a16afe5c4109cbf881aad5917792f Mon Sep 17 00:00:00 2001
From: Hui Liu <hui.liu@mediatek.com>
Date: Sun, 26 Sep 2021 15:30:28 +0800
Subject: [PATCH 0358/4878] iio: mtk-auxadc: fix case IIO_CHAN_INFO_PROCESSED

commit c2980c64c7fd4585d684574c92d1624d44961edd upstream.

The previous driver does't apply the necessary scaling to take the
voltage range into account.
We change readback value from raw data to input voltage to fix case
IIO_CHAN_INFO_PROCESSED.

Fixes: ace4cdfe67be ("iio: adc: mt2701: Add Mediatek auxadc driver for mt2701.")
Signed-off-by: Hui Liu <hui.liu@mediatek.com>
Link: https://lore.kernel.org/r/20210926073028.11045-2-hui.liu@mediatek.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/mt6577_auxadc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c
index 79c1dd68b9092..d4fccd52ef08b 100644
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -82,6 +82,10 @@ static const struct iio_chan_spec mt6577_auxadc_iio_channels[] = {
 	MT6577_AUXADC_CHANNEL(15),
 };
 
+/* For Voltage calculation */
+#define VOLTAGE_FULL_RANGE  1500	/* VA voltage */
+#define AUXADC_PRECISE      4096	/* 12 bits */
+
 static int mt_auxadc_get_cali_data(int rawdata, bool enable_cali)
 {
 	return rawdata;
@@ -191,6 +195,10 @@ static int mt6577_auxadc_read_raw(struct iio_dev *indio_dev,
 		}
 		if (adc_dev->dev_comp->sample_data_cali)
 			*val = mt_auxadc_get_cali_data(*val, true);
+
+		/* Convert adc raw data to voltage: 0 - 1500 mV */
+		*val = *val * VOLTAGE_FULL_RANGE / AUXADC_PRECISE;
+
 		return IIO_VAL_INT;
 
 	default:
-- 
GitLab


From 41e84a4f25b6bd1714679eee4cb99ded68479234 Mon Sep 17 00:00:00 2001
From: Jiri Valek - 2N <valek@2n.cz>
Date: Mon, 20 Sep 2021 14:53:48 +0200
Subject: [PATCH 0359/4878] iio: light: opt3001: Fixed timeout error when 0 lux

commit 26d90b5590579def54382a2fc34cfbe8518a9851 upstream.

Reading from sensor returned timeout error under
zero light conditions.

Signed-off-by: Jiri Valek - 2N <valek@2n.cz>
Fixes: ac663db3678a ("iio: light: opt3001: enable operation w/o IRQ")
Link: https://lore.kernel.org/r/20210920125351.6569-1-valek@2n.cz
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/light/opt3001.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index 2d48d61909a4d..ff776259734ad 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -276,6 +276,8 @@ static int opt3001_get_lux(struct opt3001 *opt, int *val, int *val2)
 		ret = wait_event_timeout(opt->result_ready_queue,
 				opt->result_ready,
 				msecs_to_jiffies(OPT3001_RESULT_READY_LONG));
+		if (ret == 0)
+			return -ETIMEDOUT;
 	} else {
 		/* Sleep for result ready time */
 		timeout = (opt->int_time == OPT3001_INT_TIME_SHORT) ?
@@ -312,9 +314,7 @@ err:
 		/* Disallow IRQ to access the device while lock is active */
 		opt->ok_to_ignore_lock = false;
 
-	if (ret == 0)
-		return -ETIMEDOUT;
-	else if (ret < 0)
+	if (ret < 0)
 		return ret;
 
 	if (opt->use_irq) {
-- 
GitLab


From abe5b13dd959495c64dd98cf2f16d0510a93d595 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 18 Aug 2021 13:11:25 +0200
Subject: [PATCH 0360/4878] iio: adc: max1027: Fix the number of max1X31
 channels
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f0cb5fed37ab37f6a6c5463c5fd39b58a45670c8 upstream.

The macro MAX1X29_CHANNELS() already calls MAX1X27_CHANNELS().
Calling MAX1X27_CHANNELS() before MAX1X29_CHANNELS() in the definition
of MAX1X31_CHANNELS() declares the first 8 channels twice. So drop this
extra call from the MAX1X31 channels list definition.

Fixes: 7af5257d8427 ("iio: adc: max1027: Prepare the introduction of different resolutions")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210818111139.330636-3-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/max1027.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index 110a133cc8d47..a08efaaf1a814 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -142,7 +142,6 @@ MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids);
 	MAX1027_V_CHAN(11, depth)
 
 #define MAX1X31_CHANNELS(depth)			\
-	MAX1X27_CHANNELS(depth),		\
 	MAX1X29_CHANNELS(depth),		\
 	MAX1027_V_CHAN(12, depth),		\
 	MAX1027_V_CHAN(13, depth),		\
-- 
GitLab


From 0fbc3cf7dd9a88240813b305db2adfc84f2e2a02 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 9 Sep 2021 12:13:36 +0300
Subject: [PATCH 0361/4878] iio: ssp_sensors: add more range checking in
 ssp_parse_dataframe()

commit 8167c9a375ccceed19048ad9d68cb2d02ed276e0 upstream.

The "idx" is validated at the start of the loop but it gets incremented
during the iteration so it needs to be checked again.

Fixes: 50dd64d57eee ("iio: common: ssp_sensors: Add sensorhub driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210909091336.GA26312@kili
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/common/ssp_sensors/ssp_spi.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/common/ssp_sensors/ssp_spi.c b/drivers/iio/common/ssp_sensors/ssp_spi.c
index 4864c38b8d1c2..387551eac184f 100644
--- a/drivers/iio/common/ssp_sensors/ssp_spi.c
+++ b/drivers/iio/common/ssp_sensors/ssp_spi.c
@@ -273,6 +273,8 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len)
 	for (idx = 0; idx < len;) {
 		switch (dataframe[idx++]) {
 		case SSP_MSG2AP_INST_BYPASS_DATA:
+			if (idx >= len)
+				return -EPROTO;
 			sd = dataframe[idx++];
 			if (sd < 0 || sd >= SSP_SENSOR_MAX) {
 				dev_err(SSP_DEV,
@@ -282,10 +284,13 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len)
 
 			if (indio_devs[sd]) {
 				spd = iio_priv(indio_devs[sd]);
-				if (spd->process_data)
+				if (spd->process_data) {
+					if (idx >= len)
+						return -EPROTO;
 					spd->process_data(indio_devs[sd],
 							  &dataframe[idx],
 							  data->timestamp);
+				}
 			} else {
 				dev_err(SSP_DEV, "no client for frame\n");
 			}
@@ -293,6 +298,8 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len)
 			idx += ssp_offset_map[sd];
 			break;
 		case SSP_MSG2AP_INST_DEBUG_DATA:
+			if (idx >= len)
+				return -EPROTO;
 			sd = ssp_print_mcu_debug(dataframe, &idx, len);
 			if (sd) {
 				dev_err(SSP_DEV,
-- 
GitLab


From 6c0024bcaadcae57523675d66589a4b37b9281d1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 14 Sep 2021 13:53:33 +0300
Subject: [PATCH 0362/4878] iio: ssp_sensors: fix error code in
 ssp_print_mcu_debug()

commit 4170d3dd1467e9d78cb9af374b19357dc324b328 upstream.

The ssp_print_mcu_debug() function should return negative error codes on
error.  Returning "length" is meaningless.  This change does not affect
runtime because the callers only care about zero/non-zero.

Reported-by: Jonathan Cameron <jic23@kernel.org>
Fixes: 50dd64d57eee ("iio: common: ssp_sensors: Add sensorhub driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210914105333.GA11657@kili
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/common/ssp_sensors/ssp_spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/common/ssp_sensors/ssp_spi.c b/drivers/iio/common/ssp_sensors/ssp_spi.c
index 387551eac184f..769bd9280524a 100644
--- a/drivers/iio/common/ssp_sensors/ssp_spi.c
+++ b/drivers/iio/common/ssp_sensors/ssp_spi.c
@@ -137,7 +137,7 @@ static int ssp_print_mcu_debug(char *data_frame, int *data_index,
 	if (length > received_len - *data_index || length <= 0) {
 		ssp_dbg("[SSP]: MSG From MCU-invalid debug length(%d/%d)\n",
 			length, received_len);
-		return length ? length : -EPROTO;
+		return -EPROTO;
 	}
 
 	ssp_dbg("[SSP]: MSG From MCU - %s\n", &data_frame[*data_index]);
-- 
GitLab


From 07f8856824864a659c941f4ccf9ec72ce19e1f01 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 16 Aug 2021 21:39:54 +0300
Subject: [PATCH 0363/4878] iio: dac: ti-dac5571: fix an error code in probe()

commit f7a28df7db84eb3410e9eca37832efa5aed93338 upstream.

If we have an unexpected number of channels then return -EINVAL instead
of returning success.

Fixes: df38a4a72a3b ("iio: dac: add TI DAC5571 family support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210816183954.GB2068@kili
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/dac/ti-dac5571.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index d3295767a079c..c0714cb1e164a 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -350,6 +350,7 @@ static int dac5571_probe(struct i2c_client *client,
 		data->dac5571_pwrdwn = dac5571_pwrdwn_quad;
 		break;
 	default:
+		ret = -EINVAL;
 		goto err;
 	}
 
-- 
GitLab


From 76644f94595bfeabd2f69259417f4f547dd580f2 Mon Sep 17 00:00:00 2001
From: Sumit Garg <sumit.garg@linaro.org>
Date: Tue, 12 Oct 2021 13:01:16 +0530
Subject: [PATCH 0364/4878] tee: optee: Fix missing devices unregister during
 optee_remove

commit 7f565d0ead264329749c0da488de9c8dfa2f18ce upstream.

When OP-TEE driver is built as a module, OP-TEE client devices
registered on TEE bus during probe should be unregistered during
optee_remove. So implement optee_unregister_devices() accordingly.

Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support")
Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tee/optee/core.c          |  3 +++
 drivers/tee/optee/device.c        | 22 ++++++++++++++++++++++
 drivers/tee/optee/optee_private.h |  1 +
 3 files changed, 26 insertions(+)

diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
index 823a81d8ff0ed..f255a96ae5a48 100644
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -585,6 +585,9 @@ static int optee_remove(struct platform_device *pdev)
 {
 	struct optee *optee = platform_get_drvdata(pdev);
 
+	/* Unregister OP-TEE specific client devices on TEE bus */
+	optee_unregister_devices();
+
 	/*
 	 * Ask OP-TEE to free all cached shared memory objects to decrease
 	 * reference counters and also avoid wild pointers in secure world
diff --git a/drivers/tee/optee/device.c b/drivers/tee/optee/device.c
index 7a897d51969fc..031806468af48 100644
--- a/drivers/tee/optee/device.c
+++ b/drivers/tee/optee/device.c
@@ -53,6 +53,13 @@ static int get_devices(struct tee_context *ctx, u32 session,
 	return 0;
 }
 
+static void optee_release_device(struct device *dev)
+{
+	struct tee_client_device *optee_device = to_tee_client_device(dev);
+
+	kfree(optee_device);
+}
+
 static int optee_register_device(const uuid_t *device_uuid)
 {
 	struct tee_client_device *optee_device = NULL;
@@ -63,6 +70,7 @@ static int optee_register_device(const uuid_t *device_uuid)
 		return -ENOMEM;
 
 	optee_device->dev.bus = &tee_bus_type;
+	optee_device->dev.release = optee_release_device;
 	if (dev_set_name(&optee_device->dev, "optee-ta-%pUb", device_uuid)) {
 		kfree(optee_device);
 		return -ENOMEM;
@@ -154,3 +162,17 @@ int optee_enumerate_devices(u32 func)
 {
 	return  __optee_enumerate_devices(func);
 }
+
+static int __optee_unregister_device(struct device *dev, void *data)
+{
+	if (!strncmp(dev_name(dev), "optee-ta", strlen("optee-ta")))
+		device_unregister(dev);
+
+	return 0;
+}
+
+void optee_unregister_devices(void)
+{
+	bus_for_each_dev(&tee_bus_type, NULL, NULL,
+			 __optee_unregister_device);
+}
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h
index dbdd367be1568..f6bb4a763ba94 100644
--- a/drivers/tee/optee/optee_private.h
+++ b/drivers/tee/optee/optee_private.h
@@ -184,6 +184,7 @@ void optee_fill_pages_list(u64 *dst, struct page **pages, int num_pages,
 #define PTA_CMD_GET_DEVICES		0x0
 #define PTA_CMD_GET_DEVICES_SUPP	0x1
 int optee_enumerate_devices(u32 func);
+void optee_unregister_devices(void);
 
 /*
  * Small helpers
-- 
GitLab


From 6e6e3018d3ced1cc1f7115f29221fc5ba793a2a2 Mon Sep 17 00:00:00 2001
From: Nicolas Saenz Julienne <nsaenz@kernel.org>
Date: Tue, 31 Aug 2021 14:58:43 +0200
Subject: [PATCH 0365/4878] ARM: dts: bcm2711-rpi-4-b: Fix usb's unit address

commit 3f32472854614d6f53b09b4812372dba9fc5c7de upstream.

The unit address is supposed to represent '<device>,<function>'. Which
are both 0 for RPi4b's XHCI controller. On top of that although
OpenFirmware states bus number goes in the high part of the last reg
parameter, FDT doesn't seem to care for it[1], so remove it.

[1] https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210830103909.323356-1-nsaenzju@redhat.com/#24414633
Fixes: 258f92d2f840 ("ARM: dts: bcm2711: Add reset controller to xHCI node")
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210831125843.1233488-2-nsaenzju@redhat.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 5395e8c2484e0..46f105d5c974f 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -262,8 +262,8 @@
 
 		reg = <0 0 0 0 0>;
 
-		usb@1,0 {
-			reg = <0x10000 0 0 0 0>;
+		usb@0,0 {
+			reg = <0 0 0 0 0>;
 			resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
 		};
 	};
-- 
GitLab


From 48613e687e281833ae654514e162c71185c843d3 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Sat, 7 Aug 2021 13:06:32 +0200
Subject: [PATCH 0366/4878] ARM: dts: bcm2711: fix MDIO #address- and
 #size-cells

commit 2faff6737a8a684b077264f0aed131526c99eec4 upstream.

The values of #address-cells and #size-cells are swapped. Fix this
and avoid the following DT schema warnings for mdio@e14:

 #address-cells:0:0: 1 was expected
 #size-cells:0:0: 0 was expected

Fixes: be8af7a9e3cc ("ARM: dts: bcm2711-rpi-4: Enable GENET support")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1628334401-6577-2-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 3d040f6e2a20f..398ecd7b9b68b 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -514,8 +514,8 @@
 				compatible = "brcm,genet-mdio-v5";
 				reg = <0xe14 0x8>;
 				reg-names = "mdio";
-				#address-cells = <0x0>;
-				#size-cells = <0x1>;
+				#address-cells = <0x1>;
+				#size-cells = <0x0>;
 			};
 		};
 	};
-- 
GitLab


From 6e6082250b53d9125c06e82de8a1948fc345bfc8 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Sat, 7 Aug 2021 13:06:33 +0200
Subject: [PATCH 0367/4878] ARM: dts: bcm2711-rpi-4-b: fix sd_io_1v8_reg
 regulator states

commit b55ec7528879a822a4d350248daa04bbb27f25fd upstream.

DT schema check complains at sd_io_1v8_reg about the following:

 [1800000, 1, 3300000, 0] is too long
 Additional items are not allowed (3300000, 0 were unexpected)

So fix the states definition.

Fixes: 7dbe8c62ceeb ("ARM: dts: Add minimal Raspberry Pi 4 support")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1628334401-6577-3-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 46f105d5c974f..76de029c588ab 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -54,8 +54,8 @@
 		regulator-always-on;
 		regulator-settling-time-us = <5000>;
 		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
-		states = <1800000 0x1
-			  3300000 0x0>;
+		states = <1800000 0x1>,
+			 <3300000 0x0>;
 		status = "okay";
 	};
 
-- 
GitLab


From 2d937cc12c140b2eb20cbb0fc8502d7232f18fe3 Mon Sep 17 00:00:00 2001
From: Nicolas Saenz Julienne <nsaenz@kernel.org>
Date: Tue, 31 Aug 2021 14:58:42 +0200
Subject: [PATCH 0368/4878] ARM: dts: bcm2711-rpi-4-b: Fix pcie0's unit address
 formatting

commit 13dbc954b3c9a9de0ad5b7279e8d3b708d31068b upstream.

dtbs_check currently complains that:

arch/arm/boot/dts/bcm2711-rpi-4-b.dts:220.10-231.4: Warning
(pci_device_reg): /scb/pcie@7d500000/pci@1,0: PCI unit address format
error, expected "0,0"

Unsurprisingly pci@0,0 is the right address, as illustrated by its reg
property:

    &pcie0 {
	    pci@0,0 {
		    /*
		     * As defined in the IEEE Std 1275-1994 document,
		     * reg is a five-cell address encoded as (phys.hi
		     * phys.mid phys.lo size.hi size.lo). phys.hi
		     * should contain the device's BDF as 0b00000000
		     * bbbbbbbb dddddfff 00000000. The other cells
		     * should be zero.
		     */
		    reg = <0 0 0 0 0>;
	    };
    };

The device is clearly 0. So fix it.

Also add a missing 'device_type = "pci"'.

Fixes: 258f92d2f840 ("ARM: dts: bcm2711: Add reset controller to xHCI node")
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210831125843.1233488-1-nsaenzju@redhat.com
Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 76de029c588ab..167538518a1ec 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -255,7 +255,8 @@
 };
 
 &pcie0 {
-	pci@1,0 {
+	pci@0,0 {
+		device_type = "pci";
 		#address-cells = <3>;
 		#size-cells = <2>;
 		ranges;
-- 
GitLab


From 6fecdb5b54a5d37e5c018307ea9180502c85d158 Mon Sep 17 00:00:00 2001
From: Keith Busch <kbusch@kernel.org>
Date: Wed, 6 Oct 2021 23:50:31 -0700
Subject: [PATCH 0369/4878] nvme-pci: Fix abort command id

commit 85f74acf097a63a07f5a7c215db6883e5c35e3ff upstream.

The request tag is no longer the only component of the command id.

Fixes: e7006de6c2380 ("nvme: code command_id with a genctr for use-after-free validation")
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index d79abb88a0c62..1b85349f57af0 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1342,7 +1342,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
 
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.abort.opcode = nvme_admin_abort_cmd;
-	cmd.abort.cid = req->tag;
+	cmd.abort.cid = nvme_cid(req);
 	cmd.abort.sqid = cpu_to_le16(nvmeq->qid);
 
 	dev_warn(nvmeq->dev->ctrl.device,
-- 
GitLab


From d84a69ac410f6228873d05d35120f6bdddab7fc3 Mon Sep 17 00:00:00 2001
From: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Date: Wed, 13 Oct 2021 17:27:29 -0300
Subject: [PATCH 0370/4878] sctp: account stream padding length for reconf
 chunk

commit a2d859e3fc97e79d907761550dbc03ff1b36479c upstream.

sctp_make_strreset_req() makes repeated calls to sctp_addto_chunk()
which will automatically account for padding on each call. inreq and
outreq are already 4 bytes aligned, but the payload is not and doing
SCTP_PAD4(a + b) (which _sctp_make_chunk() did implicitly here) is
different from SCTP_PAD4(a) + SCTP_PAD4(b) and not enough. It led to
possible attempt to use more buffer than it was allocated and triggered
a BUG_ON.

Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Fixes: cc16f00f6529 ("sctp: add support for generating stream reconf ssn reset request chunk")
Reported-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/b97c1f8b0c7ff79ac4ed206fc2c49d3612e0850c.1634156849.git.mleitner@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sctp/sm_make_chunk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index fa0d96320baae..64e0f4864b733 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3651,7 +3651,7 @@ struct sctp_chunk *sctp_make_strreset_req(
 	outlen = (sizeof(outreq) + stream_len) * out;
 	inlen = (sizeof(inreq) + stream_len) * in;
 
-	retval = sctp_make_reconf(asoc, outlen + inlen);
+	retval = sctp_make_reconf(asoc, SCTP_PAD4(outlen) + SCTP_PAD4(inlen));
 	if (!retval)
 		return NULL;
 
-- 
GitLab


From 17a027aafd529bb1f97c6c520a03207b80aab14d Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 24 Sep 2021 01:46:40 +0300
Subject: [PATCH 0371/4878] gpio: pca953x: Improve bias setting

commit 55a9968c7e139209a9e93d4ca4321731bea5fc95 upstream.

The commit 15add06841a3 ("gpio: pca953x: add ->set_config implementation")
introduced support for bias setting. However this, due to being half-baked,
brought potential issues:
 - the turning bias via disabling makes the pin floating for a while;
 - once enabled, bias can't be disabled.

Fix all these by adding support for bias disabling and move the disabling
part under the corresponding conditional.

While at it, add support for default setting, since it's cheap to add.

Fixes: 15add06841a3 ("gpio: pca953x: add ->set_config implementation")
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-pca953x.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 3a3aeef1017f5..a78167b2c9ca2 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -558,21 +558,21 @@ static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip,
 
 	mutex_lock(&chip->i2c_lock);
 
-	/* Disable pull-up/pull-down */
-	ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, 0);
-	if (ret)
-		goto exit;
-
 	/* Configure pull-up/pull-down */
 	if (config == PIN_CONFIG_BIAS_PULL_UP)
 		ret = regmap_write_bits(chip->regmap, pull_sel_reg, bit, bit);
 	else if (config == PIN_CONFIG_BIAS_PULL_DOWN)
 		ret = regmap_write_bits(chip->regmap, pull_sel_reg, bit, 0);
+	else
+		ret = 0;
 	if (ret)
 		goto exit;
 
-	/* Enable pull-up/pull-down */
-	ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, bit);
+	/* Disable/Enable pull-up/pull-down */
+	if (config == PIN_CONFIG_BIAS_DISABLE)
+		ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, 0);
+	else
+		ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, bit);
 
 exit:
 	mutex_unlock(&chip->i2c_lock);
@@ -586,7 +586,9 @@ static int pca953x_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
 
 	switch (pinconf_to_config_param(config)) {
 	case PIN_CONFIG_BIAS_PULL_UP:
+	case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
 	case PIN_CONFIG_BIAS_PULL_DOWN:
+	case PIN_CONFIG_BIAS_DISABLE:
 		return pca953x_gpio_set_pull_up_down(chip, offset, config);
 	default:
 		return -ENOTSUPP;
-- 
GitLab


From 33ca8501051152e7aa3e9ce146360156c8a0dbff Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Tue, 12 Oct 2021 11:34:46 +0200
Subject: [PATCH 0372/4878] net: arc: select CRC32

commit e599ee234ad4fdfe241d937bbabd96e0d8f9d868 upstream.

Fix the following build/link error by adding a dependency on the CRC32
routines:

  ld: drivers/net/ethernet/arc/emac_main.o: in function `arc_emac_set_rx_mode':
  emac_main.c:(.text+0xb11): undefined reference to `crc32_le'

The crc32_le() call comes through the ether_crc_le() call in
arc_emac_set_rx_mode().

[v2: moved the select to ARC_EMAC_CORE; the Makefile is a bit confusing,
but the error comes from emac_main.o, which is part of the arc_emac module,
which in turn is enabled by CONFIG_ARC_EMAC_CORE. Note that arc_emac is
different from emac_arc...]

Fixes: 775dd682e2b0ec ("arc_emac: implement promiscuous mode and multicast filtering")
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Link: https://lore.kernel.org/r/20211012093446.1575-1-vegard.nossum@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/arc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/arc/Kconfig b/drivers/net/ethernet/arc/Kconfig
index 37a41773dd435..92a79c4ffa2c7 100644
--- a/drivers/net/ethernet/arc/Kconfig
+++ b/drivers/net/ethernet/arc/Kconfig
@@ -21,6 +21,7 @@ config ARC_EMAC_CORE
 	depends on ARC || ARCH_ROCKCHIP || COMPILE_TEST
 	select MII
 	select PHYLIB
+	select CRC32
 
 config ARC_EMAC
 	tristate "ARC EMAC support"
-- 
GitLab


From afb0c67dfdb5b84aae5bfc30a32de8623a12dd56 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Tue, 12 Oct 2021 17:25:09 +0200
Subject: [PATCH 0373/4878] net: korina: select CRC32

commit 427f974d9727ca681085ddcd0530c97ab5811ae0 upstream.

Fix the following build/link error by adding a dependency on the CRC32
routines:

  ld: drivers/net/ethernet/korina.o: in function `korina_multicast_list':
  korina.c:(.text+0x1af): undefined reference to `crc32_le'

Fixes: ef11291bcd5f9 ("Add support the Korina (IDT RC32434) Ethernet MAC")
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Florian fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211012152509.21771-1-vegard.nossum@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index de50e8b9e6562..fad9a2c77fa7c 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -99,6 +99,7 @@ config JME
 config KORINA
 	tristate "Korina (IDT RC32434) Ethernet support"
 	depends on MIKROTIK_RB532
+	select CRC32
 	help
 	  If you have a Mikrotik RouterBoard 500 or IDT RC32434
 	  based system say Y. Otherwise say N.
-- 
GitLab


From 4f7bddf8c5c01cac74373443b13a68e1c6723a94 Mon Sep 17 00:00:00 2001
From: Valentine Fatiev <valentinef@nvidia.com>
Date: Sun, 15 Aug 2021 17:43:19 +0300
Subject: [PATCH 0374/4878] net/mlx5e: Fix memory leak in
 mlx5_core_destroy_cq() error path

commit 94b960b9deffc02fc0747afc01f72cc62ab099e3 upstream.

Prior to this patch in case mlx5_core_destroy_cq() failed it returns
without completing all destroy operations and that leads to memory leak.
Instead, complete the destroy flow before return error.

Also move mlx5_debug_cq_remove() to the beginning of mlx5_core_destroy_cq()
to be symmetrical with mlx5_core_create_cq().

kmemleak complains on:

unreferenced object 0xc000000038625100 (size 64):
  comm "ethtool", pid 28301, jiffies 4298062946 (age 785.380s)
  hex dump (first 32 bytes):
    60 01 48 94 00 00 00 c0 b8 05 34 c3 00 00 00 c0  `.H.......4.....
    02 00 00 00 00 00 00 00 00 db 7d c1 00 00 00 c0  ..........}.....
  backtrace:
    [<000000009e8643cb>] add_res_tree+0xd0/0x270 [mlx5_core]
    [<00000000e7cb8e6c>] mlx5_debug_cq_add+0x5c/0xc0 [mlx5_core]
    [<000000002a12918f>] mlx5_core_create_cq+0x1d0/0x2d0 [mlx5_core]
    [<00000000cef0a696>] mlx5e_create_cq+0x210/0x3f0 [mlx5_core]
    [<000000009c642c26>] mlx5e_open_cq+0xb4/0x130 [mlx5_core]
    [<0000000058dfa578>] mlx5e_ptp_open+0x7f4/0xe10 [mlx5_core]
    [<0000000081839561>] mlx5e_open_channels+0x9cc/0x13e0 [mlx5_core]
    [<0000000009cf05d4>] mlx5e_switch_priv_channels+0xa4/0x230
[mlx5_core]
    [<0000000042bbedd8>] mlx5e_safe_switch_params+0x14c/0x300
[mlx5_core]
    [<0000000004bc9db8>] set_pflag_tx_port_ts+0x9c/0x160 [mlx5_core]
    [<00000000a0553443>] mlx5e_set_priv_flags+0xd0/0x1b0 [mlx5_core]
    [<00000000a8f3d84b>] ethnl_set_privflags+0x234/0x2d0
    [<00000000fd27f27c>] genl_family_rcv_msg_doit+0x108/0x1d0
    [<00000000f495e2bb>] genl_family_rcv_msg+0xe4/0x1f0
    [<00000000646c5c2c>] genl_rcv_msg+0x78/0x120
    [<00000000d53e384e>] netlink_rcv_skb+0x74/0x1a0

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: Valentine Fatiev <valentinef@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/cq.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cq.c b/drivers/net/ethernet/mellanox/mlx5/core/cq.c
index 360e093874d4f..c74600be570ed 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cq.c
@@ -154,6 +154,8 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq)
 	u32 in[MLX5_ST_SZ_DW(destroy_cq_in)] = {};
 	int err;
 
+	mlx5_debug_cq_remove(dev, cq);
+
 	mlx5_eq_del_cq(mlx5_get_async_eq(dev), cq);
 	mlx5_eq_del_cq(&cq->eq->core, cq);
 
@@ -161,16 +163,13 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq)
 	MLX5_SET(destroy_cq_in, in, cqn, cq->cqn);
 	MLX5_SET(destroy_cq_in, in, uid, cq->uid);
 	err = mlx5_cmd_exec_in(dev, destroy_cq, in);
-	if (err)
-		return err;
 
 	synchronize_irq(cq->irqn);
 
-	mlx5_debug_cq_remove(dev, cq);
 	mlx5_cq_put(cq);
 	wait_for_completion(&cq->free);
 
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL(mlx5_core_destroy_cq);
 
-- 
GitLab


From 12da46cb6a90541d39267034dd6a94b0335881e4 Mon Sep 17 00:00:00 2001
From: Aya Levin <ayal@nvidia.com>
Date: Sun, 26 Sep 2021 17:55:41 +0300
Subject: [PATCH 0375/4878] net/mlx5e: Mutually exclude RX-FCS and
 RX-port-timestamp

commit 0bc73ad46a76ed6ece4dcacb28858e7b38561e1c upstream.

Due to current HW arch limitations, RX-FCS (scattering FCS frame field
to software) and RX-port-timestamp (improved timestamp accuracy on the
receive side) can't work together.
RX-port-timestamp is not controlled by the user and it is enabled by
default when supported by the HW/FW.
This patch sets RX-port-timestamp opposite to RX-FCS configuration.

Fixes: 102722fc6832 ("net/mlx5e: Add support for RXFCS feature flag")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/mellanox/mlx5/core/en_main.c | 57 +++++++++++++++++--
 include/linux/mlx5/mlx5_ifc.h                 | 10 +++-
 2 files changed, 60 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 6974090a7efac..6ec4b96497ffb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3819,20 +3819,67 @@ static int set_feature_rx_all(struct net_device *netdev, bool enable)
 	return mlx5_set_port_fcs(mdev, !enable);
 }
 
+static int mlx5e_set_rx_port_ts(struct mlx5_core_dev *mdev, bool enable)
+{
+	u32 in[MLX5_ST_SZ_DW(pcmr_reg)] = {};
+	bool supported, curr_state;
+	int err;
+
+	if (!MLX5_CAP_GEN(mdev, ports_check))
+		return 0;
+
+	err = mlx5_query_ports_check(mdev, in, sizeof(in));
+	if (err)
+		return err;
+
+	supported = MLX5_GET(pcmr_reg, in, rx_ts_over_crc_cap);
+	curr_state = MLX5_GET(pcmr_reg, in, rx_ts_over_crc);
+
+	if (!supported || enable == curr_state)
+		return 0;
+
+	MLX5_SET(pcmr_reg, in, local_port, 1);
+	MLX5_SET(pcmr_reg, in, rx_ts_over_crc, enable);
+
+	return mlx5_set_ports_check(mdev, in, sizeof(in));
+}
+
 static int set_feature_rx_fcs(struct net_device *netdev, bool enable)
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
+	struct mlx5e_channels *chs = &priv->channels;
+	struct mlx5_core_dev *mdev = priv->mdev;
 	int err;
 
 	mutex_lock(&priv->state_lock);
 
-	priv->channels.params.scatter_fcs_en = enable;
-	err = mlx5e_modify_channels_scatter_fcs(&priv->channels, enable);
-	if (err)
-		priv->channels.params.scatter_fcs_en = !enable;
+	if (enable) {
+		err = mlx5e_set_rx_port_ts(mdev, false);
+		if (err)
+			goto out;
 
-	mutex_unlock(&priv->state_lock);
+		chs->params.scatter_fcs_en = true;
+		err = mlx5e_modify_channels_scatter_fcs(chs, true);
+		if (err) {
+			chs->params.scatter_fcs_en = false;
+			mlx5e_set_rx_port_ts(mdev, true);
+		}
+	} else {
+		chs->params.scatter_fcs_en = false;
+		err = mlx5e_modify_channels_scatter_fcs(chs, false);
+		if (err) {
+			chs->params.scatter_fcs_en = true;
+			goto out;
+		}
+		err = mlx5e_set_rx_port_ts(mdev, true);
+		if (err) {
+			mlx5_core_warn(mdev, "Failed to set RX port timestamp %d\n", err);
+			err = 0;
+		}
+	}
 
+out:
+	mutex_unlock(&priv->state_lock);
 	return err;
 }
 
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 70a3664785f80..f5e829e12a76d 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -9274,16 +9274,22 @@ struct mlx5_ifc_pcmr_reg_bits {
 	u8         reserved_at_0[0x8];
 	u8         local_port[0x8];
 	u8         reserved_at_10[0x10];
+
 	u8         entropy_force_cap[0x1];
 	u8         entropy_calc_cap[0x1];
 	u8         entropy_gre_calc_cap[0x1];
-	u8         reserved_at_23[0x1b];
+	u8         reserved_at_23[0xf];
+	u8         rx_ts_over_crc_cap[0x1];
+	u8         reserved_at_33[0xb];
 	u8         fcs_cap[0x1];
 	u8         reserved_at_3f[0x1];
+
 	u8         entropy_force[0x1];
 	u8         entropy_calc[0x1];
 	u8         entropy_gre_calc[0x1];
-	u8         reserved_at_43[0x1b];
+	u8         reserved_at_43[0xf];
+	u8         rx_ts_over_crc[0x1];
+	u8         reserved_at_53[0xb];
 	u8         fcs_chk[0x1];
 	u8         reserved_at_5f[0x1];
 };
-- 
GitLab


From 9053c5b4594c96cc8978ba4f34e67f89fea89d52 Mon Sep 17 00:00:00 2001
From: Herve Codina <herve.codina@bootlin.com>
Date: Fri, 8 Oct 2021 12:34:37 +0200
Subject: [PATCH 0376/4878] net: stmmac: fix get_hw_feature() on old hardware

commit 075da584bae2da6a37428d59a477b6bdad430ac3 upstream.

Some old IPs do not provide the hardware feature register.
On these IPs, this register is read 0x00000000.

In old driver version, this feature was handled but a regression came
with the commit f10a6a3541b4 ("stmmac: rework get_hw_feature function").
Indeed, this commit removes the return value in dma->get_hw_feature().
This return value was used to indicate the validity of retrieved
information and used later on in stmmac_hw_init() to override
priv->plat data if this hardware feature were valid.

This patch restores the return code in ->get_hw_feature() in order
to indicate the hardware feature validity and override priv->plat
data only if this hardware feature is valid.

Fixes: f10a6a3541b4 ("stmmac: rework get_hw_feature function")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c | 13 +++++++++++--
 drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c    |  6 ++++--
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c  |  6 ++++--
 drivers/net/ethernet/stmicro/stmmac/hwif.h          |  6 +++---
 4 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index 2bac49b49f739..fbf2deafe8ba3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -218,11 +218,18 @@ static void dwmac1000_dump_dma_regs(void __iomem *ioaddr, u32 *reg_space)
 				readl(ioaddr + DMA_BUS_MODE + i * 4);
 }
 
-static void dwmac1000_get_hw_feature(void __iomem *ioaddr,
-				     struct dma_features *dma_cap)
+static int dwmac1000_get_hw_feature(void __iomem *ioaddr,
+				    struct dma_features *dma_cap)
 {
 	u32 hw_cap = readl(ioaddr + DMA_HW_FEATURE);
 
+	if (!hw_cap) {
+		/* 0x00000000 is the value read on old hardware that does not
+		 * implement this register
+		 */
+		return -EOPNOTSUPP;
+	}
+
 	dma_cap->mbps_10_100 = (hw_cap & DMA_HW_FEAT_MIISEL);
 	dma_cap->mbps_1000 = (hw_cap & DMA_HW_FEAT_GMIISEL) >> 1;
 	dma_cap->half_duplex = (hw_cap & DMA_HW_FEAT_HDSEL) >> 2;
@@ -252,6 +259,8 @@ static void dwmac1000_get_hw_feature(void __iomem *ioaddr,
 	dma_cap->number_tx_channel = (hw_cap & DMA_HW_FEAT_TXCHCNT) >> 22;
 	/* Alternate (enhanced) DESC mode */
 	dma_cap->enh_desc = (hw_cap & DMA_HW_FEAT_ENHDESSEL) >> 24;
+
+	return 0;
 }
 
 static void dwmac1000_rx_watchdog(void __iomem *ioaddr, u32 riwt,
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
index a7249e4071f16..935510cdc3ffd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
@@ -337,8 +337,8 @@ static void dwmac4_dma_tx_chan_op_mode(void __iomem *ioaddr, int mode,
 	writel(mtl_tx_op, ioaddr +  MTL_CHAN_TX_OP_MODE(channel));
 }
 
-static void dwmac4_get_hw_feature(void __iomem *ioaddr,
-				  struct dma_features *dma_cap)
+static int dwmac4_get_hw_feature(void __iomem *ioaddr,
+				 struct dma_features *dma_cap)
 {
 	u32 hw_cap = readl(ioaddr + GMAC_HW_FEATURE0);
 
@@ -425,6 +425,8 @@ static void dwmac4_get_hw_feature(void __iomem *ioaddr,
 	dma_cap->frpbs = (hw_cap & GMAC_HW_FEAT_FRPBS) >> 11;
 	dma_cap->frpsel = (hw_cap & GMAC_HW_FEAT_FRPSEL) >> 10;
 	dma_cap->dvlan = (hw_cap & GMAC_HW_FEAT_DVLAN) >> 5;
+
+	return 0;
 }
 
 /* Enable/disable TSO feature and set MSS */
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index 77308c5c5d294..a5583d706b9f2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -365,8 +365,8 @@ static int dwxgmac2_dma_interrupt(void __iomem *ioaddr,
 	return ret;
 }
 
-static void dwxgmac2_get_hw_feature(void __iomem *ioaddr,
-				    struct dma_features *dma_cap)
+static int dwxgmac2_get_hw_feature(void __iomem *ioaddr,
+				   struct dma_features *dma_cap)
 {
 	u32 hw_cap;
 
@@ -439,6 +439,8 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr,
 	dma_cap->frpes = (hw_cap & XGMAC_HWFEAT_FRPES) >> 11;
 	dma_cap->frpbs = (hw_cap & XGMAC_HWFEAT_FRPPB) >> 9;
 	dma_cap->frpsel = (hw_cap & XGMAC_HWFEAT_FRPSEL) >> 3;
+
+	return 0;
 }
 
 static void dwxgmac2_rx_watchdog(void __iomem *ioaddr, u32 riwt, u32 nchan)
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index b0b84244ef107..8b7ec2457eba2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -203,8 +203,8 @@ struct stmmac_dma_ops {
 	int (*dma_interrupt) (void __iomem *ioaddr,
 			      struct stmmac_extra_stats *x, u32 chan);
 	/* If supported then get the optional core features */
-	void (*get_hw_feature)(void __iomem *ioaddr,
-			       struct dma_features *dma_cap);
+	int (*get_hw_feature)(void __iomem *ioaddr,
+			      struct dma_features *dma_cap);
 	/* Program the HW RX Watchdog */
 	void (*rx_watchdog)(void __iomem *ioaddr, u32 riwt, u32 number_chan);
 	void (*set_tx_ring_len)(void __iomem *ioaddr, u32 len, u32 chan);
@@ -255,7 +255,7 @@ struct stmmac_dma_ops {
 #define stmmac_dma_interrupt_status(__priv, __args...) \
 	stmmac_do_callback(__priv, dma, dma_interrupt, __args)
 #define stmmac_get_hw_feature(__priv, __args...) \
-	stmmac_do_void_callback(__priv, dma, get_hw_feature, __args)
+	stmmac_do_callback(__priv, dma, get_hw_feature, __args)
 #define stmmac_rx_watchdog(__priv, __args...) \
 	stmmac_do_void_callback(__priv, dma, rx_watchdog, __args)
 #define stmmac_set_tx_ring_len(__priv, __args...) \
-- 
GitLab


From f2e1de075018cf71bcd7d628e9f759cb8540b0c3 Mon Sep 17 00:00:00 2001
From: Arun Ramadoss <arun.ramadoss@microchip.com>
Date: Mon, 11 Oct 2021 21:18:08 +0530
Subject: [PATCH 0377/4878] net: dsa: microchip: Added the condition for
 scheduling ksz_mib_read_work

commit ef1100ef20f29aec4e62abeccdb5bdbebba1e378 upstream.

When the ksz module is installed and removed using rmmod, kernel crashes
with null pointer dereferrence error. During rmmod, ksz_switch_remove
function tries to cancel the mib_read_workqueue using
cancel_delayed_work_sync routine and unregister switch from dsa.

During dsa_unregister_switch it calls ksz_mac_link_down, which in turn
reschedules the workqueue since mib_interval is non-zero.
Due to which queue executed after mib_interval and it tries to access
dp->slave. But the slave is unregistered in the ksz_switch_remove
function. Hence kernel crashes.

To avoid this crash, before canceling the workqueue, resetted the
mib_interval to 0.

v1 -> v2:
-Removed the if condition in ksz_mib_read_work

Fixes: 469b390e1ba3 ("net: dsa: microchip: use delayed_work instead of timer + work")
Signed-off-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/microchip/ksz_common.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 88fa0779e0bc9..e3c338624b95c 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -460,8 +460,10 @@ EXPORT_SYMBOL(ksz_switch_register);
 void ksz_switch_remove(struct ksz_device *dev)
 {
 	/* timer started */
-	if (dev->mib_read_interval)
+	if (dev->mib_read_interval) {
+		dev->mib_read_interval = 0;
 		cancel_delayed_work_sync(&dev->mib_read);
+	}
 
 	dev->dev_ops->exit(dev);
 	dsa_unregister_switch(dev->ds);
-- 
GitLab


From e19c10d6e07c59c96e90fe053a72683ad8b0397e Mon Sep 17 00:00:00 2001
From: Nanyong Sun <sunnanyong@huawei.com>
Date: Tue, 12 Oct 2021 20:59:01 +0800
Subject: [PATCH 0378/4878] net: encx24j600: check error in
 devm_regmap_init_encx24j600

commit f03dca0c9e2297c84a018e306f8a9cd534ee4287 upstream.

devm_regmap_init may return error which caused by like out of memory,
this will results in null pointer dereference later when reading
or writing register:

general protection fault in encx24j600_spi_probe
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
CPU: 0 PID: 286 Comm: spi-encx24j600- Not tainted 5.15.0-rc2-00142-g9978db750e31-dirty #11 9c53a778c1306b1b02359f3c2bbedc0222cba652
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:regcache_cache_bypass drivers/base/regmap/regcache.c:540
Code: 54 41 89 f4 55 53 48 89 fb 48 83 ec 08 e8 26 94 a8 fe 48 8d bb a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 4a 03 00 00 4c 8d ab b0 00 00 00 48 8b ab a0 00
RSP: 0018:ffffc900010476b8 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: 0000000000000000
RDX: 0000000000000012 RSI: ffff888002de0000 RDI: 0000000000000094
RBP: ffff888013c9a000 R08: 0000000000000000 R09: fffffbfff3f9cc6a
R10: ffffc900010476e8 R11: fffffbfff3f9cc69 R12: 0000000000000001
R13: 000000000000000a R14: ffff888013c9af54 R15: ffff888013c9ad08
FS:  00007ffa984ab580(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a6384136c8 CR3: 000000003bbe6003 CR4: 0000000000770ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 encx24j600_spi_probe drivers/net/ethernet/microchip/encx24j600.c:459
 spi_probe drivers/spi/spi.c:397
 really_probe drivers/base/dd.c:517
 __driver_probe_device drivers/base/dd.c:751
 driver_probe_device drivers/base/dd.c:782
 __device_attach_driver drivers/base/dd.c:899
 bus_for_each_drv drivers/base/bus.c:427
 __device_attach drivers/base/dd.c:971
 bus_probe_device drivers/base/bus.c:487
 device_add drivers/base/core.c:3364
 __spi_add_device drivers/spi/spi.c:599
 spi_add_device drivers/spi/spi.c:641
 spi_new_device drivers/spi/spi.c:717
 new_device_store+0x18c/0x1f1 [spi_stub 4e02719357f1ff33f5a43d00630982840568e85e]
 dev_attr_store drivers/base/core.c:2074
 sysfs_kf_write fs/sysfs/file.c:139
 kernfs_fop_write_iter fs/kernfs/file.c:300
 new_sync_write fs/read_write.c:508 (discriminator 4)
 vfs_write fs/read_write.c:594
 ksys_write fs/read_write.c:648
 do_syscall_64 arch/x86/entry/common.c:50
 entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:113

Add error check in devm_regmap_init_encx24j600 to avoid this situation.

Fixes: 04fbfce7a222 ("net: Microchip encx24j600 driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
Link: https://lore.kernel.org/r/20211012125901.3623144-1-sunnanyong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/microchip/encx24j600-regmap.c | 10 ++++++++--
 drivers/net/ethernet/microchip/encx24j600.c        |  5 ++++-
 drivers/net/ethernet/microchip/encx24j600_hw.h     |  4 ++--
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/microchip/encx24j600-regmap.c b/drivers/net/ethernet/microchip/encx24j600-regmap.c
index 796e46a539269..81a8ccca7e5e0 100644
--- a/drivers/net/ethernet/microchip/encx24j600-regmap.c
+++ b/drivers/net/ethernet/microchip/encx24j600-regmap.c
@@ -497,13 +497,19 @@ static struct regmap_bus phymap_encx24j600 = {
 	.reg_read = regmap_encx24j600_phy_reg_read,
 };
 
-void devm_regmap_init_encx24j600(struct device *dev,
-				 struct encx24j600_context *ctx)
+int devm_regmap_init_encx24j600(struct device *dev,
+				struct encx24j600_context *ctx)
 {
 	mutex_init(&ctx->mutex);
 	regcfg.lock_arg = ctx;
 	ctx->regmap = devm_regmap_init(dev, &regmap_encx24j600, ctx, &regcfg);
+	if (IS_ERR(ctx->regmap))
+		return PTR_ERR(ctx->regmap);
 	ctx->phymap = devm_regmap_init(dev, &phymap_encx24j600, ctx, &phycfg);
+	if (IS_ERR(ctx->phymap))
+		return PTR_ERR(ctx->phymap);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(devm_regmap_init_encx24j600);
 
diff --git a/drivers/net/ethernet/microchip/encx24j600.c b/drivers/net/ethernet/microchip/encx24j600.c
index 2c0dcd7acf3fd..c95e29ae6f20c 100644
--- a/drivers/net/ethernet/microchip/encx24j600.c
+++ b/drivers/net/ethernet/microchip/encx24j600.c
@@ -1024,10 +1024,13 @@ static int encx24j600_spi_probe(struct spi_device *spi)
 	priv->speed = SPEED_100;
 
 	priv->ctx.spi = spi;
-	devm_regmap_init_encx24j600(&spi->dev, &priv->ctx);
 	ndev->irq = spi->irq;
 	ndev->netdev_ops = &encx24j600_netdev_ops;
 
+	ret = devm_regmap_init_encx24j600(&spi->dev, &priv->ctx);
+	if (ret)
+		goto out_free;
+
 	mutex_init(&priv->lock);
 
 	/* Reset device and check if it is connected */
diff --git a/drivers/net/ethernet/microchip/encx24j600_hw.h b/drivers/net/ethernet/microchip/encx24j600_hw.h
index f604a260ede79..711147a159aa9 100644
--- a/drivers/net/ethernet/microchip/encx24j600_hw.h
+++ b/drivers/net/ethernet/microchip/encx24j600_hw.h
@@ -15,8 +15,8 @@ struct encx24j600_context {
 	int bank;
 };
 
-void devm_regmap_init_encx24j600(struct device *dev,
-				 struct encx24j600_context *ctx);
+int devm_regmap_init_encx24j600(struct device *dev,
+				struct encx24j600_context *ctx);
 
 /* Single-byte instructions */
 #define BANK_SELECT(bank) (0xC0 | ((bank & (BANK_MASK >> BANK_SHIFT)) << 1))
-- 
GitLab


From 84e0f2fc662e8f60688a015e7bf89e57522281c8 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 13 Oct 2021 16:35:49 +0200
Subject: [PATCH 0379/4878] ethernet: s2io: fix setting mac address during
 resume

commit 40507e7aada8422c38aafa0c8a1a09e4623c712a upstream.

After recent cleanups, gcc started warning about a suspicious
memcpy() call during the s2io_io_resume() function:

In function '__dev_addr_set',
    inlined from 'eth_hw_addr_set' at include/linux/etherdevice.h:318:2,
    inlined from 's2io_set_mac_addr' at drivers/net/ethernet/neterion/s2io.c:5205:2,
    inlined from 's2io_io_resume' at drivers/net/ethernet/neterion/s2io.c:8569:7:
arch/x86/include/asm/string_32.h:182:25: error: '__builtin_memcpy' accessing 6 bytes at offsets 0 and 2 overlaps 4 bytes at offset 2 [-Werror=restrict]
  182 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/netdevice.h:4648:9: note: in expansion of macro 'memcpy'
 4648 |         memcpy(dev->dev_addr, addr, len);
      |         ^~~~~~

What apparently happened is that an old cleanup changed the calling
conventions for s2io_set_mac_addr() from taking an ethernet address
as a character array to taking a struct sockaddr, but one of the
callers was not changed at the same time.

Change it to instead call the low-level do_s2io_prog_unicast() function
that still takes the old argument type.

Fixes: 2fd376884558 ("S2io: Added support set_mac_address driver entry point")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211013143613.2049096-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/neterion/s2io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index d13d92bf74478..3cae8449fadb7 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -8555,7 +8555,7 @@ static void s2io_io_resume(struct pci_dev *pdev)
 			return;
 		}
 
-		if (s2io_set_mac_addr(netdev, netdev->dev_addr) == FAILURE) {
+		if (do_s2io_prog_unicast(netdev, netdev->dev_addr) == FAILURE) {
 			s2io_card_down(sp);
 			pr_err("Can't restore mac addr after reset.\n");
 			return;
-- 
GitLab


From ba39f55952a217b83311467c0b911126dad9b37f Mon Sep 17 00:00:00 2001
From: Cindy Lu <lulu@redhat.com>
Date: Wed, 29 Sep 2021 17:09:33 +0800
Subject: [PATCH 0380/4878] vhost-vdpa: Fix the wrong input in config_cb

commit bcef9356fc2e1302daf373c83c826aa27954d128 upstream.

Fix the wrong input in for config_cb. In function vhost_vdpa_config_cb,
the input cb.private was used as struct vhost_vdpa, so the input was
wrong here, fix this issue

Fixes: 776f395004d8 ("vhost_vdpa: Support config interrupt in vdpa")
Signed-off-by: Cindy Lu <lulu@redhat.com>
Link: https://lore.kernel.org/r/20210929090933.20465-1-lulu@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/vhost/vdpa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index c4d53ff06bf85..fdeb20f2f174c 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -325,7 +325,7 @@ static long vhost_vdpa_set_config_call(struct vhost_vdpa *v, u32 __user *argp)
 	struct eventfd_ctx *ctx;
 
 	cb.callback = vhost_vdpa_config_cb;
-	cb.private = v->vdpa;
+	cb.private = v;
 	if (copy_from_user(&fd, argp, sizeof(fd)))
 		return  -EFAULT;
 
-- 
GitLab


From 2f21f06a5e7a1df4ee518b5edafe74ff6d985189 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Wed, 13 Oct 2021 11:49:32 +0800
Subject: [PATCH 0381/4878] nfc: fix error handling of nfc_proto_register()

commit 0911ab31896f0e908540746414a77dd63912748d upstream.

When nfc proto id is using, nfc_proto_register() return -EBUSY error
code, but forgot to unregister proto. Fix it by adding proto_unregister()
in the error handling case.

Fixes: c7fe3b52c128 ("NFC: add NFC socket family")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211013034932.2833737-1-william.xuanziyang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/af_nfc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/nfc/af_nfc.c b/net/nfc/af_nfc.c
index 4a9e72073564a..581358dcbdf8d 100644
--- a/net/nfc/af_nfc.c
+++ b/net/nfc/af_nfc.c
@@ -60,6 +60,9 @@ int nfc_proto_register(const struct nfc_protocol *nfc_proto)
 		proto_tab[nfc_proto->id] = nfc_proto;
 	write_unlock(&proto_tab_lock);
 
+	if (rc)
+		proto_unregister(nfc_proto->proto);
+
 	return rc;
 }
 EXPORT_SYMBOL(nfc_proto_register);
-- 
GitLab


From 3f2960b39f22e26cf8addae93c3f5884d1c183c9 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Wed, 13 Oct 2021 15:50:12 +0800
Subject: [PATCH 0382/4878] NFC: digital: fix possible memory leak in
 digital_tg_listen_mdaa()

commit 58e7dcc9ca29c14e44267a4d0ea61e3229124907 upstream.

'params' is allocated in digital_tg_listen_mdaa(), but not free when
digital_send_cmd() failed, which will cause memory leak. Fix it by
freeing 'params' if digital_send_cmd() return failed.

Fixes: 1c7a4c24fbfd ("NFC Digital: Add target NFC-DEP support")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/digital_core.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index e3599ed4a7a87..9c9caa307cf16 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -277,6 +277,7 @@ int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 static int digital_tg_listen_mdaa(struct nfc_digital_dev *ddev, u8 rf_tech)
 {
 	struct digital_tg_mdaa_params *params;
+	int rc;
 
 	params = kzalloc(sizeof(*params), GFP_KERNEL);
 	if (!params)
@@ -291,8 +292,12 @@ static int digital_tg_listen_mdaa(struct nfc_digital_dev *ddev, u8 rf_tech)
 	get_random_bytes(params->nfcid2 + 2, NFC_NFCID2_MAXSIZE - 2);
 	params->sc = DIGITAL_SENSF_FELICA_SC;
 
-	return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN_MDAA, NULL, params,
-				500, digital_tg_recv_atr_req, NULL);
+	rc = digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN_MDAA, NULL, params,
+			      500, digital_tg_recv_atr_req, NULL);
+	if (rc)
+		kfree(params);
+
+	return rc;
 }
 
 static int digital_tg_listen_md(struct nfc_digital_dev *ddev, u8 rf_tech)
-- 
GitLab


From 50cb95487c265187289810addec5093d4fed8329 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Wed, 13 Oct 2021 15:50:32 +0800
Subject: [PATCH 0383/4878] NFC: digital: fix possible memory leak in
 digital_in_send_sdd_req()

commit 291c932fc3692e4d211a445ba8aa35663831bac7 upstream.

'skb' is allocated in digital_in_send_sdd_req(), but not free when
digital_in_send_cmd() failed, which will cause memory leak. Fix it
by freeing 'skb' if digital_in_send_cmd() return failed.

Fixes: 2c66daecc409 ("NFC Digital: Add NFC-A technology support")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/digital_technology.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index 84d2345c75a3f..3adf4589852af 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -465,8 +465,12 @@ static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
 	skb_put_u8(skb, sel_cmd);
 	skb_put_u8(skb, DIGITAL_SDD_REQ_SEL_PAR);
 
-	return digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sdd_res,
-				   target);
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sdd_res,
+				 target);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
 }
 
 static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
-- 
GitLab


From 116932c0e45e8f7f4e485550a60992505e56eb63 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 6 Oct 2021 10:34:19 +0300
Subject: [PATCH 0384/4878] pata_legacy: fix a couple uninitialized variable
 bugs

commit 013923477cb311293df9079332cf8b806ed0e6f2 upstream.

The last byte of "pad" is used without being initialized.

Fixes: 55dba3120fbc ("libata: update ->data_xfer hook for ATAPI")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/pata_legacy.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 4fd12b20df239..d91ba47f2fc44 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -315,7 +315,8 @@ static unsigned int pdc_data_xfer_vlb(struct ata_queued_cmd *qc,
 			iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
 		if (unlikely(slop)) {
-			__le32 pad;
+			__le32 pad = 0;
+
 			if (rw == READ) {
 				pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
 				memcpy(buf + buflen - slop, &pad, slop);
@@ -705,7 +706,8 @@ static unsigned int vlb32_data_xfer(struct ata_queued_cmd *qc,
 			ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
 		if (unlikely(slop)) {
-			__le32 pad;
+			__le32 pad = 0;
+
 			if (rw == WRITE) {
 				memcpy(&pad, buf + buflen - slop, slop);
 				iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr);
-- 
GitLab


From 7eef482db72831c3676d2114a1876ad1999cdac7 Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Wed, 13 Oct 2021 14:16:31 +0800
Subject: [PATCH 0385/4878] ata: ahci_platform: fix null-ptr-deref in
 ahci_platform_enable_regulators()

commit 776c75010803849c1cc4f11031a2b3960ab05202 upstream.

I got a null-ptr-deref report:

KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
...
RIP: 0010:regulator_enable+0x84/0x260
...
Call Trace:
 ahci_platform_enable_regulators+0xae/0x320
 ahci_platform_enable_resources+0x1a/0x120
 ahci_probe+0x4f/0x1b9
 platform_probe+0x10b/0x280
...
 entry_SYSCALL_64_after_hwframe+0x44/0xae

If devm_regulator_get() in ahci_platform_get_resources() fails,
hpriv->phy_regulator will point to NULL, when enabling or disabling it,
null-ptr-deref will occur.

ahci_probe()
	ahci_platform_get_resources()
		devm_regulator_get(, "phy") // failed, let phy_regulator = NULL
	ahci_platform_enable_resources()
		ahci_platform_enable_regulators()
			regulator_enable(hpriv->phy_regulator) // null-ptr-deref

commit 962399bb7fbf ("ata: libahci_platform: Fix regulator_get_optional()
misuse") replaces devm_regulator_get_optional() with devm_regulator_get(),
but PHY regulator omits to delete "hpriv->phy_regulator = NULL;" like AHCI.
Delete it like AHCI regulator to fix this bug.

Fixes: commit 962399bb7fbf ("ata: libahci_platform: Fix regulator_get_optional() misuse")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libahci_platform.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index b2f5520882918..0910441321f72 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -440,10 +440,7 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
 	hpriv->phy_regulator = devm_regulator_get(dev, "phy");
 	if (IS_ERR(hpriv->phy_regulator)) {
 		rc = PTR_ERR(hpriv->phy_regulator);
-		if (rc == -EPROBE_DEFER)
-			goto err_out;
-		rc = 0;
-		hpriv->phy_regulator = NULL;
+		goto err_out;
 	}
 
 	if (flags & AHCI_PLATFORM_GET_RESETS) {
-- 
GitLab


From e59d839743b50cb1d3f42a786bea48cc5621d254 Mon Sep 17 00:00:00 2001
From: Ido Schimmel <idosch@nvidia.com>
Date: Tue, 12 Oct 2021 20:49:55 +0300
Subject: [PATCH 0386/4878] mlxsw: thermal: Fix out-of-bounds memory accesses

commit 332fdf951df8b870e3da86b122ae304e2aabe88c upstream.

Currently, mlxsw allows cooling states to be set above the maximum
cooling state supported by the driver:

 # cat /sys/class/thermal/thermal_zone2/cdev0/type
 mlxsw_fan
 # cat /sys/class/thermal/thermal_zone2/cdev0/max_state
 10
 # echo 18 > /sys/class/thermal/thermal_zone2/cdev0/cur_state
 # echo $?
 0

This results in out-of-bounds memory accesses when thermal state
transition statistics are enabled (CONFIG_THERMAL_STATISTICS=y), as the
transition table is accessed with a too large index (state) [1].

According to the thermal maintainer, it is the responsibility of the
driver to reject such operations [2].

Therefore, return an error when the state to be set exceeds the maximum
cooling state supported by the driver.

To avoid dead code, as suggested by the thermal maintainer [3],
partially revert commit a421ce088ac8 ("mlxsw: core: Extend cooling
device with cooling levels") that tried to interpret these invalid
cooling states (above the maximum) in a special way. The cooling levels
array is not removed in order to prevent the fans going below 20% PWM,
which would cause them to get stuck at 0% PWM.

[1]
BUG: KASAN: slab-out-of-bounds in thermal_cooling_device_stats_update+0x271/0x290
Read of size 4 at addr ffff8881052f7bf8 by task kworker/0:0/5

CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.15.0-rc3-custom-45935-gce1adf704b14 #122
Hardware name: Mellanox Technologies Ltd. "MSN2410-CB2FO"/"SA000874", BIOS 4.6.5 03/08/2016
Workqueue: events_freezable_power_ thermal_zone_device_check
Call Trace:
 dump_stack_lvl+0x8b/0xb3
 print_address_description.constprop.0+0x1f/0x140
 kasan_report.cold+0x7f/0x11b
 thermal_cooling_device_stats_update+0x271/0x290
 __thermal_cdev_update+0x15e/0x4e0
 thermal_cdev_update+0x9f/0xe0
 step_wise_throttle+0x770/0xee0
 thermal_zone_device_update+0x3f6/0xdf0
 process_one_work+0xa42/0x1770
 worker_thread+0x62f/0x13e0
 kthread+0x3ee/0x4e0
 ret_from_fork+0x1f/0x30

Allocated by task 1:
 kasan_save_stack+0x1b/0x40
 __kasan_kmalloc+0x7c/0x90
 thermal_cooling_device_setup_sysfs+0x153/0x2c0
 __thermal_cooling_device_register.part.0+0x25b/0x9c0
 thermal_cooling_device_register+0xb3/0x100
 mlxsw_thermal_init+0x5c5/0x7e0
 __mlxsw_core_bus_device_register+0xcb3/0x19c0
 mlxsw_core_bus_device_register+0x56/0xb0
 mlxsw_pci_probe+0x54f/0x710
 local_pci_probe+0xc6/0x170
 pci_device_probe+0x2b2/0x4d0
 really_probe+0x293/0xd10
 __driver_probe_device+0x2af/0x440
 driver_probe_device+0x51/0x1e0
 __driver_attach+0x21b/0x530
 bus_for_each_dev+0x14c/0x1d0
 bus_add_driver+0x3ac/0x650
 driver_register+0x241/0x3d0
 mlxsw_sp_module_init+0xa2/0x174
 do_one_initcall+0xee/0x5f0
 kernel_init_freeable+0x45a/0x4de
 kernel_init+0x1f/0x210
 ret_from_fork+0x1f/0x30

The buggy address belongs to the object at ffff8881052f7800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 1016 bytes inside of
 1024-byte region [ffff8881052f7800, ffff8881052f7c00)
The buggy address belongs to the page:
page:0000000052355272 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1052f0
head:0000000052355272 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head|node=0|zone=2)
raw: 0200000000010200 ffffea0005034800 0000000300000003 ffff888100041dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8881052f7a80: 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc fc
 ffff8881052f7b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881052f7b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff8881052f7c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881052f7c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

[2] https://lore.kernel.org/linux-pm/9aca37cb-1629-5c67-1895-1fdc45c0244e@linaro.org/
[3] https://lore.kernel.org/linux-pm/af9857f2-578e-de3a-e62b-6baff7e69fd4@linaro.org/

CC: Daniel Lezcano <daniel.lezcano@linaro.org>
Fixes: a50c1e35650b ("mlxsw: core: Implement thermal zone")
Fixes: a421ce088ac8 ("mlxsw: core: Extend cooling device with cooling levels")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20211012174955.472928-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/mellanox/mlxsw/core_thermal.c    | 52 ++-----------------
 1 file changed, 5 insertions(+), 47 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index 42e4437ac3c16..7ec1d0ee9beeb 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -25,16 +25,8 @@
 #define MLXSW_THERMAL_ZONE_MAX_NAME	16
 #define MLXSW_THERMAL_TEMP_SCORE_MAX	GENMASK(31, 0)
 #define MLXSW_THERMAL_MAX_STATE	10
+#define MLXSW_THERMAL_MIN_STATE	2
 #define MLXSW_THERMAL_MAX_DUTY	255
-/* Minimum and maximum fan allowed speed in percent: from 20% to 100%. Values
- * MLXSW_THERMAL_MAX_STATE + x, where x is between 2 and 10 are used for
- * setting fan speed dynamic minimum. For example, if value is set to 14 (40%)
- * cooling levels vector will be set to 4, 4, 4, 4, 4, 5, 6, 7, 8, 9, 10 to
- * introduce PWM speed in percent: 40, 40, 40, 40, 40, 50, 60. 70, 80, 90, 100.
- */
-#define MLXSW_THERMAL_SPEED_MIN		(MLXSW_THERMAL_MAX_STATE + 2)
-#define MLXSW_THERMAL_SPEED_MAX		(MLXSW_THERMAL_MAX_STATE * 2)
-#define MLXSW_THERMAL_SPEED_MIN_LEVEL	2		/* 20% */
 
 /* External cooling devices, allowed for binding to mlxsw thermal zones. */
 static char * const mlxsw_thermal_external_allowed_cdev[] = {
@@ -635,49 +627,16 @@ static int mlxsw_thermal_set_cur_state(struct thermal_cooling_device *cdev,
 	struct mlxsw_thermal *thermal = cdev->devdata;
 	struct device *dev = thermal->bus_info->dev;
 	char mfsc_pl[MLXSW_REG_MFSC_LEN];
-	unsigned long cur_state, i;
 	int idx;
-	u8 duty;
 	int err;
 
+	if (state > MLXSW_THERMAL_MAX_STATE)
+		return -EINVAL;
+
 	idx = mlxsw_get_cooling_device_idx(thermal, cdev);
 	if (idx < 0)
 		return idx;
 
-	/* Verify if this request is for changing allowed fan dynamical
-	 * minimum. If it is - update cooling levels accordingly and update
-	 * state, if current state is below the newly requested minimum state.
-	 * For example, if current state is 5, and minimal state is to be
-	 * changed from 4 to 6, thermal->cooling_levels[0 to 5] will be changed
-	 * all from 4 to 6. And state 5 (thermal->cooling_levels[4]) should be
-	 * overwritten.
-	 */
-	if (state >= MLXSW_THERMAL_SPEED_MIN &&
-	    state <= MLXSW_THERMAL_SPEED_MAX) {
-		state -= MLXSW_THERMAL_MAX_STATE;
-		for (i = 0; i <= MLXSW_THERMAL_MAX_STATE; i++)
-			thermal->cooling_levels[i] = max(state, i);
-
-		mlxsw_reg_mfsc_pack(mfsc_pl, idx, 0);
-		err = mlxsw_reg_query(thermal->core, MLXSW_REG(mfsc), mfsc_pl);
-		if (err)
-			return err;
-
-		duty = mlxsw_reg_mfsc_pwm_duty_cycle_get(mfsc_pl);
-		cur_state = mlxsw_duty_to_state(duty);
-
-		/* If current fan state is lower than requested dynamical
-		 * minimum, increase fan speed up to dynamical minimum.
-		 */
-		if (state < cur_state)
-			return 0;
-
-		state = cur_state;
-	}
-
-	if (state > MLXSW_THERMAL_MAX_STATE)
-		return -EINVAL;
-
 	/* Normalize the state to the valid speed range. */
 	state = thermal->cooling_levels[state];
 	mlxsw_reg_mfsc_pack(mfsc_pl, idx, mlxsw_state_to_duty(state));
@@ -980,8 +939,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
 
 	/* Initialize cooling levels per PWM state. */
 	for (i = 0; i < MLXSW_THERMAL_MAX_STATE; i++)
-		thermal->cooling_levels[i] = max(MLXSW_THERMAL_SPEED_MIN_LEVEL,
-						 i);
+		thermal->cooling_levels[i] = max(MLXSW_THERMAL_MIN_STATE, i);
 
 	thermal->polling_delay = bus_info->low_frequency ?
 				 MLXSW_THERMAL_SLOW_POLL_INT :
-- 
GitLab


From c216cebdd245b6d8546950269453d89414eda973 Mon Sep 17 00:00:00 2001
From: Vadim Pasternak <vadimp@nvidia.com>
Date: Mon, 27 Sep 2021 17:22:13 +0300
Subject: [PATCH 0387/4878] platform/mellanox: mlxreg-io: Fix argument base in
 kstrtou32() call

commit 9b024201693e397441668cca0d2df7055fe572eb upstream.

Change kstrtou32() argument 'base' to be zero instead of 'len'.
It works by chance for setting one bit value, but it is not supposed to
work in case value passed to mlxreg_io_attr_store() is greater than 1.

It works for example, for:
echo 1 > /sys/devices/platform/mlxplat/mlxreg-io/hwmon/.../jtag_enable
But it will fail for:
echo n > /sys/devices/platform/mlxplat/mlxreg-io/hwmon/.../jtag_enable,
where n > 1.

The flow for input buffer conversion is as below:
_kstrtoull(const char *s, unsigned int base, unsigned long long *res)
calls:
rv = _parse_integer(s, base, &_res);

For the second case, where n > 1:
- _parse_integer() converts 's' to 'val'.
  For n=2, 'len' is set to 2 (string buffer is 0x32 0x0a), for n=3
  'len' is set to 3 (string buffer 0x33 0x0a), etcetera.
- 'base' is equal or greater then '2' (length of input buffer).

As a result, _parse_integer() exits with result zero (rv):
	rv = 0;
	while (1) {
		...
		if (val >= base)-> (2 >= 2)
			break;
		...
		rv++;
		...
	}

And _kstrtoull() in their turn will fail:
	if (rv == 0)
		return -EINVAL;

Fixes: 5ec4a8ace06c ("platform/mellanox: Introduce support for Mellanox register access driver")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20210927142214.2613929-2-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/mellanox/mlxreg-io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/mellanox/mlxreg-io.c b/drivers/platform/mellanox/mlxreg-io.c
index 7646708d57e42..a023ec02126b4 100644
--- a/drivers/platform/mellanox/mlxreg-io.c
+++ b/drivers/platform/mellanox/mlxreg-io.c
@@ -141,7 +141,7 @@ mlxreg_io_attr_store(struct device *dev, struct device_attribute *attr,
 		return -EINVAL;
 
 	/* Convert buffer to input value. */
-	ret = kstrtou32(buf, len, &input_val);
+	ret = kstrtou32(buf, 0, &input_val);
 	if (ret)
 		return ret;
 
-- 
GitLab


From d9428f08e1c3b8d4da3d98f27f9eae0412b2cb38 Mon Sep 17 00:00:00 2001
From: Vadim Pasternak <vadimp@nvidia.com>
Date: Mon, 27 Sep 2021 17:22:14 +0300
Subject: [PATCH 0388/4878] platform/mellanox: mlxreg-io: Fix read access of
 n-bytes size attributes

commit db9cc7d6f95e7d89b0ce57e785cfd9d67a7505d8 upstream.

Fix shift argument for function rol32(). It should be provided in bits,
while was provided in bytes.

Fixes: 86148190a7db ("platform/mellanox: mlxreg-io: Add support for complex attributes")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20210927142214.2613929-3-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/mellanox/mlxreg-io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/mellanox/mlxreg-io.c b/drivers/platform/mellanox/mlxreg-io.c
index a023ec02126b4..a916cd89cbbed 100644
--- a/drivers/platform/mellanox/mlxreg-io.c
+++ b/drivers/platform/mellanox/mlxreg-io.c
@@ -98,7 +98,7 @@ mlxreg_io_get_reg(void *regmap, struct mlxreg_core_data *data, u32 in_val,
 			if (ret)
 				goto access_error;
 
-			*regval |= rol32(val, regsize * i);
+			*regval |= rol32(val, regsize * i * 8);
 		}
 	}
 
-- 
GitLab


From a4a37e6516f86dd0e67efafbf0d41840f4669b1f Mon Sep 17 00:00:00 2001
From: Kamal Dasu <kdasu@broadcom.com>
Date: Fri, 8 Oct 2021 16:36:02 -0400
Subject: [PATCH 0389/4878] spi: bcm-qspi: clear MSPI spifie interrupt during
 probe

commit 75b3cb97eb1f05042745c0655a7145b0262d4c5c upstream.

Intermittent Kernel crash has been observed on probe in
bcm_qspi_mspi_l2_isr() handler when the MSPI spifie interrupt bit
has not been cleared before registering for interrupts.
Fix the driver to move SoC specific custom interrupt handling code
before we register IRQ in probe. Also clear MSPI interrupt status
resgiter prior to registering IRQ handlers.

Fixes: cc20a38612db ("spi: iproc-qspi: Add Broadcom iProc SoCs support")
Signed-off-by: Kamal Dasu <kdasu@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211008203603.40915-3-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/spi/spi-bcm-qspi.c | 77 ++++++++++++++++++++++----------------
 1 file changed, 45 insertions(+), 32 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index c028446c74604..b4d5930be2a95 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1250,10 +1250,14 @@ static void bcm_qspi_hw_init(struct bcm_qspi *qspi)
 
 static void bcm_qspi_hw_uninit(struct bcm_qspi *qspi)
 {
+	u32 status = bcm_qspi_read(qspi, MSPI, MSPI_MSPI_STATUS);
+
 	bcm_qspi_write(qspi, MSPI, MSPI_SPCR2, 0);
 	if (has_bspi(qspi))
 		bcm_qspi_write(qspi, MSPI, MSPI_WRITE_LOCK, 0);
 
+	/* clear interrupt */
+	bcm_qspi_write(qspi, MSPI, MSPI_MSPI_STATUS, status & ~1);
 }
 
 static const struct spi_controller_mem_ops bcm_qspi_mem_ops = {
@@ -1397,6 +1401,47 @@ int bcm_qspi_probe(struct platform_device *pdev,
 	if (!qspi->dev_ids)
 		return -ENOMEM;
 
+	/*
+	 * Some SoCs integrate spi controller (e.g., its interrupt bits)
+	 * in specific ways
+	 */
+	if (soc_intc) {
+		qspi->soc_intc = soc_intc;
+		soc_intc->bcm_qspi_int_set(soc_intc, MSPI_DONE, true);
+	} else {
+		qspi->soc_intc = NULL;
+	}
+
+	if (qspi->clk) {
+		ret = clk_prepare_enable(qspi->clk);
+		if (ret) {
+			dev_err(dev, "failed to prepare clock\n");
+			goto qspi_probe_err;
+		}
+		qspi->base_clk = clk_get_rate(qspi->clk);
+	} else {
+		qspi->base_clk = MSPI_BASE_FREQ;
+	}
+
+	if (data->has_mspi_rev) {
+		rev = bcm_qspi_read(qspi, MSPI, MSPI_REV);
+		/* some older revs do not have a MSPI_REV register */
+		if ((rev & 0xff) == 0xff)
+			rev = 0;
+	}
+
+	qspi->mspi_maj_rev = (rev >> 4) & 0xf;
+	qspi->mspi_min_rev = rev & 0xf;
+	qspi->mspi_spcr3_sysclk = data->has_spcr3_sysclk;
+
+	qspi->max_speed_hz = qspi->base_clk / (bcm_qspi_spbr_min(qspi) * 2);
+
+	/*
+	 * On SW resets it is possible to have the mask still enabled
+	 * Need to disable the mask and clear the status while we init
+	 */
+	bcm_qspi_hw_uninit(qspi);
+
 	for (val = 0; val < num_irqs; val++) {
 		irq = -1;
 		name = qspi_irq_tab[val].irq_name;
@@ -1433,38 +1478,6 @@ int bcm_qspi_probe(struct platform_device *pdev,
 		goto qspi_probe_err;
 	}
 
-	/*
-	 * Some SoCs integrate spi controller (e.g., its interrupt bits)
-	 * in specific ways
-	 */
-	if (soc_intc) {
-		qspi->soc_intc = soc_intc;
-		soc_intc->bcm_qspi_int_set(soc_intc, MSPI_DONE, true);
-	} else {
-		qspi->soc_intc = NULL;
-	}
-
-	ret = clk_prepare_enable(qspi->clk);
-	if (ret) {
-		dev_err(dev, "failed to prepare clock\n");
-		goto qspi_probe_err;
-	}
-
-	qspi->base_clk = clk_get_rate(qspi->clk);
-
-	if (data->has_mspi_rev) {
-		rev = bcm_qspi_read(qspi, MSPI, MSPI_REV);
-		/* some older revs do not have a MSPI_REV register */
-		if ((rev & 0xff) == 0xff)
-			rev = 0;
-	}
-
-	qspi->mspi_maj_rev = (rev >> 4) & 0xf;
-	qspi->mspi_min_rev = rev & 0xf;
-	qspi->mspi_spcr3_sysclk = data->has_spcr3_sysclk;
-
-	qspi->max_speed_hz = qspi->base_clk / (bcm_qspi_spbr_min(qspi) * 2);
-
 	bcm_qspi_hw_init(qspi);
 	init_completion(&qspi->mspi_done);
 	init_completion(&qspi->bspi_done);
-- 
GitLab


From d0f0e17103972f40b46930afcb7685438028ec0d Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Tue, 12 Oct 2021 13:52:42 +0200
Subject: [PATCH 0390/4878] drm/panel: olimex-lcd-olinuxino: select CRC32

commit a14bc107edd0c108bda2245e50daa22f91c95d20 upstream.

Fix the following build/link error by adding a dependency on the CRC32
routines:

  ld: drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.o: in function `lcd_olinuxino_probe':
  panel-olimex-lcd-olinuxino.c:(.text+0x303): undefined reference to `crc32_le'

Fixes: 17fd7a9d324fd ("drm/panel: Add support for Olimex LCD-OLinuXino panel")
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211012115242.10325-1-vegard.nossum@oracle.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/panel/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index b9dbedf8f15e8..6153972e0127a 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -233,6 +233,7 @@ config DRM_PANEL_OLIMEX_LCD_OLINUXINO
 	depends on OF
 	depends on I2C
 	depends on BACKLIGHT_CLASS_DEVICE
+	select CRC32
 	help
 	  The panel is used with different sizes LCDs, from 480x272 to
 	  1280x800, and 24 bit per pixel.
-- 
GitLab


From a7b45024f66f9ec769e8dbb1a51ae83cd05929c7 Mon Sep 17 00:00:00 2001
From: Douglas Anderson <dianders@chromium.org>
Date: Tue, 5 Oct 2021 19:29:08 -0700
Subject: [PATCH 0391/4878] drm/edid: In connector_bad_edid() cap num_of_ext by
 num_blocks read
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 97794170b696856483f74b47bfb6049780d2d3a0 upstream.

In commit e11f5bd8228f ("drm: Add support for DP 1.4 Compliance edid
corruption test") the function connector_bad_edid() started assuming
that the memory for the EDID passed to it was big enough to hold
`edid[0x7e] + 1` blocks of data (1 extra for the base block). It
completely ignored the fact that the function was passed `num_blocks`
which indicated how much memory had been allocated for the EDID.

Let's fix this by adding a bounds check.

This is important for handling the case where there's an error in the
first block of the EDID. In that case we will call
connector_bad_edid() without having re-allocated memory based on
`edid[0x7e]`.

Fixes: e11f5bd8228f ("drm: Add support for DP 1.4 Compliance edid corruption test")
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211005192905.v2.1.Ib059f9c23c2611cb5a9d760e7d0a700c1295928d@changeid
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/drm_edid.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index b7ddf504e0249..add317bd8d55c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1835,11 +1835,20 @@ static void connector_bad_edid(struct drm_connector *connector,
 			       u8 *edid, int num_blocks)
 {
 	int i;
-	u8 num_of_ext = edid[0x7e];
+	u8 last_block;
+
+	/*
+	 * 0x7e in the EDID is the number of extension blocks. The EDID
+	 * is 1 (base block) + num_ext_blocks big. That means we can think
+	 * of 0x7e in the EDID of the _index_ of the last block in the
+	 * combined chunk of memory.
+	 */
+	last_block = edid[0x7e];
 
 	/* Calculate real checksum for the last edid extension block data */
-	connector->real_edid_checksum =
-		drm_edid_block_checksum(edid + num_of_ext * EDID_LENGTH);
+	if (last_block < num_blocks)
+		connector->real_edid_checksum =
+			drm_edid_block_checksum(edid + last_block * EDID_LENGTH);
 
 	if (connector->bad_edid_counter++ && !drm_debug_enabled(DRM_UT_KMS))
 		return;
-- 
GitLab


From 91a340768b012f5b910a203a805b97a345b3db37 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 29 Sep 2021 13:18:57 +0100
Subject: [PATCH 0392/4878] drm/msm: Fix null pointer dereference on pointer
 edp

commit 2133c4fc8e1348dcb752f267a143fe2254613b34 upstream.

The initialization of pointer dev dereferences pointer edp before
edp is null checked, so there is a potential null pointer deference
issue. Fix this by only dereferencing edp after edp has been null
checked.

Addresses-Coverity: ("Dereference before null check")
Fixes: ab5b0107ccf3 ("drm/msm: Initial add eDP support in msm drm driver (v5)")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210929121857.213922-1-colin.king@canonical.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/edp/edp_ctrl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/edp/edp_ctrl.c b/drivers/gpu/drm/msm/edp/edp_ctrl.c
index 0d9657cc70dbb..937b4abb15526 100644
--- a/drivers/gpu/drm/msm/edp/edp_ctrl.c
+++ b/drivers/gpu/drm/msm/edp/edp_ctrl.c
@@ -1116,7 +1116,7 @@ void msm_edp_ctrl_power(struct edp_ctrl *ctrl, bool on)
 int msm_edp_ctrl_init(struct msm_edp *edp)
 {
 	struct edp_ctrl *ctrl = NULL;
-	struct device *dev = &edp->pdev->dev;
+	struct device *dev;
 	int ret;
 
 	if (!edp) {
@@ -1124,6 +1124,7 @@ int msm_edp_ctrl_init(struct msm_edp *edp)
 		return -EINVAL;
 	}
 
+	dev = &edp->pdev->dev;
 	ctrl = devm_kzalloc(dev, sizeof(*ctrl), GFP_KERNEL);
 	if (!ctrl)
 		return -ENOMEM;
-- 
GitLab


From abd11864159b17a3fb5786ec7564e5d494691c0a Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Sat, 25 Sep 2021 22:28:24 +0300
Subject: [PATCH 0393/4878] drm/msm/mdp5: fix cursor-related warnings

commit c491a0c7bbf3a64732cb8414021429d15ec08eec upstream.

Since f35a2a99100f ("drm/encoder: make encoder control functions
optional") drm_mode_config_validate would print warnings if both cursor
plane and cursor functions are provided. Restore separate set of
drm_crtc_funcs to be used if separate cursor plane is provided.

[    6.556046] ------------[ cut here ]------------
[    6.556071] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_set func
[    6.556091] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:648 drm_mode_config_validate+0x238/0x4d0
[    6.567453] Modules linked in:
[    6.577604] CPU: 1 PID: 76 Comm: kworker/u8:2 Not tainted 5.15.0-rc1-dirty #43
[    6.580557] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[    6.587763] Workqueue: events_unbound deferred_probe_work_func
[    6.593926] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    6.599740] pc : drm_mode_config_validate+0x238/0x4d0
[    6.606596] lr : drm_mode_config_validate+0x238/0x4d0
[    6.611804] sp : ffff8000121b3980
[    6.616838] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[    6.620140] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[    6.627258] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[    6.634376] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[    6.641494] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c78709
[    6.648613] x14: 0000000000000000 x13: ffff800011a22850 x12: 00000000000009ab
[    6.655730] x11: 0000000000000339 x10: ffff800011a22850 x9 : ffff800011a22850
[    6.662848] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[    6.669966] x5 : 000000000000bff4 x4 : 40000000fffff339 x3 : 0000000000000000
[    6.677084] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[    6.684205] Call trace:
[    6.691319]  drm_mode_config_validate+0x238/0x4d0
[    6.693577]  drm_dev_register+0x17c/0x210
[    6.698435]  msm_drm_bind+0x4b4/0x694
[    6.702429]  try_to_bring_up_master+0x164/0x1d0
[    6.706075]  __component_add+0xa0/0x170
[    6.710415]  component_add+0x14/0x20
[    6.714234]  msm_hdmi_dev_probe+0x1c/0x2c
[    6.718053]  platform_probe+0x68/0xe0
[    6.721959]  really_probe.part.0+0x9c/0x30c
[    6.725606]  __driver_probe_device+0x98/0x144
[    6.729600]  driver_probe_device+0xc8/0x15c
[    6.734114]  __device_attach_driver+0xb4/0x120
[    6.738106]  bus_for_each_drv+0x78/0xd0
[    6.742619]  __device_attach+0xdc/0x184
[    6.746351]  device_initial_probe+0x14/0x20
[    6.750172]  bus_probe_device+0x9c/0xa4
[    6.754337]  deferred_probe_work_func+0x88/0xc0
[    6.758158]  process_one_work+0x1d0/0x370
[    6.762671]  worker_thread+0x2c8/0x470
[    6.766839]  kthread+0x15c/0x170
[    6.770483]  ret_from_fork+0x10/0x20
[    6.773870] ---[ end trace 5884eb76cd26d274 ]---
[    6.777500] ------------[ cut here ]------------
[    6.782043] [CRTC:93:crtc-0] must not have both a cursor plane and a cursor_move func
[    6.782063] WARNING: CPU: 1 PID: 76 at drivers/gpu/drm/drm_mode_config.c:654 drm_mode_config_validate+0x290/0x4d0
[    6.794362] Modules linked in:
[    6.804600] CPU: 1 PID: 76 Comm: kworker/u8:2 Tainted: G        W         5.15.0-rc1-dirty #43
[    6.807555] Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
[    6.816148] Workqueue: events_unbound deferred_probe_work_func
[    6.822311] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    6.828126] pc : drm_mode_config_validate+0x290/0x4d0
[    6.834981] lr : drm_mode_config_validate+0x290/0x4d0
[    6.840189] sp : ffff8000121b3980
[    6.845223] x29: ffff8000121b3990 x28: 0000000000000000 x27: 0000000000000001
[    6.848525] x26: ffff8000114cde50 x25: ffff8000114cdd40 x24: ffff0000987282d8
[    6.855643] x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000001
[    6.862763] x20: ffff000098728000 x19: ffff000080a39000 x18: ffffffffffffffff
[    6.869879] x17: 3136564e3631564e x16: 0000000000000324 x15: ffff800011c790c2
[    6.876998] x14: 0000000000000000 x13: ffff800011a22850 x12: 0000000000000a2f
[    6.884116] x11: 0000000000000365 x10: ffff800011a22850 x9 : ffff800011a22850
[    6.891234] x8 : 00000000ffffefff x7 : ffff800011a7a850 x6 : ffff800011a7a850
[    6.898351] x5 : 000000000000bff4 x4 : 40000000fffff365 x3 : 0000000000000000
[    6.905470] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00008093b800
[    6.912590] Call trace:
[    6.919702]  drm_mode_config_validate+0x290/0x4d0
[    6.921960]  drm_dev_register+0x17c/0x210
[    6.926821]  msm_drm_bind+0x4b4/0x694
[    6.930813]  try_to_bring_up_master+0x164/0x1d0
[    6.934459]  __component_add+0xa0/0x170
[    6.938799]  component_add+0x14/0x20
[    6.942619]  msm_hdmi_dev_probe+0x1c/0x2c
[    6.946438]  platform_probe+0x68/0xe0
[    6.950345]  really_probe.part.0+0x9c/0x30c
[    6.953991]  __driver_probe_device+0x98/0x144
[    6.957984]  driver_probe_device+0xc8/0x15c
[    6.962498]  __device_attach_driver+0xb4/0x120
[    6.966492]  bus_for_each_drv+0x78/0xd0
[    6.971004]  __device_attach+0xdc/0x184
[    6.974737]  device_initial_probe+0x14/0x20
[    6.978556]  bus_probe_device+0x9c/0xa4
[    6.982722]  deferred_probe_work_func+0x88/0xc0
[    6.986543]  process_one_work+0x1d0/0x370
[    6.991057]  worker_thread+0x2c8/0x470
[    6.995223]  kthread+0x15c/0x170
[    6.998869]  ret_from_fork+0x10/0x20
[    7.002255] ---[ end trace 5884eb76cd26d275 ]---

Fixes: aa649e875daf ("drm/msm/mdp5: mdp5_crtc: Restore cursor state only if LM cursors are enabled")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210925192824.3416259-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
index 7d7668998501a..a8fa084dfa494 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
@@ -1119,6 +1119,20 @@ static void mdp5_crtc_reset(struct drm_crtc *crtc)
 	__drm_atomic_helper_crtc_reset(crtc, &mdp5_cstate->base);
 }
 
+static const struct drm_crtc_funcs mdp5_crtc_no_lm_cursor_funcs = {
+	.set_config = drm_atomic_helper_set_config,
+	.destroy = mdp5_crtc_destroy,
+	.page_flip = drm_atomic_helper_page_flip,
+	.reset = mdp5_crtc_reset,
+	.atomic_duplicate_state = mdp5_crtc_duplicate_state,
+	.atomic_destroy_state = mdp5_crtc_destroy_state,
+	.atomic_print_state = mdp5_crtc_atomic_print_state,
+	.get_vblank_counter = mdp5_crtc_get_vblank_counter,
+	.enable_vblank  = msm_crtc_enable_vblank,
+	.disable_vblank = msm_crtc_disable_vblank,
+	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
+};
+
 static const struct drm_crtc_funcs mdp5_crtc_funcs = {
 	.set_config = drm_atomic_helper_set_config,
 	.destroy = mdp5_crtc_destroy,
@@ -1307,6 +1321,8 @@ struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
 	mdp5_crtc->lm_cursor_enabled = cursor_plane ? false : true;
 
 	drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane,
+				  cursor_plane ?
+				  &mdp5_crtc_no_lm_cursor_funcs :
 				  &mdp5_crtc_funcs, NULL);
 
 	drm_flip_work_init(&mdp5_crtc->unref_cursor_work,
-- 
GitLab


From b28586fb04f35a2d07ebe62e702525139bb2ce3d Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@chromium.org>
Date: Thu, 30 Sep 2021 10:43:20 -0700
Subject: [PATCH 0394/4878] drm/msm/a6xx: Track current ctx by seqno

commit 14eb0cb4e9a7323c8735cf6c681ed8423ce6ae06 upstream.

In theory a context can be destroyed and a new one allocated at the same
address, making the pointer comparision to detect when we don't need to
update the current pagetables invalid.  Instead assign a sequence number
to each context on creation, and use this for the check.

Fixes: 84c31ee16f90 ("drm/msm/a6xx: Add support for per-instance pagetables")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c |  6 +++---
 drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 11 ++++++++++-
 drivers/gpu/drm/msm/msm_drv.c         |  3 +++
 drivers/gpu/drm/msm/msm_drv.h         |  1 +
 4 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 2dcbe02846cd9..9e09805575db4 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -99,7 +99,7 @@ static void a6xx_set_pagetable(struct a6xx_gpu *a6xx_gpu,
 	u32 asid;
 	u64 memptr = rbmemptr(ring, ttbr0);
 
-	if (ctx == a6xx_gpu->cur_ctx)
+	if (ctx->seqno == a6xx_gpu->cur_ctx_seqno)
 		return;
 
 	if (msm_iommu_pagetable_params(ctx->aspace->mmu, &ttbr, &asid))
@@ -132,7 +132,7 @@ static void a6xx_set_pagetable(struct a6xx_gpu *a6xx_gpu,
 	OUT_PKT7(ring, CP_EVENT_WRITE, 1);
 	OUT_RING(ring, 0x31);
 
-	a6xx_gpu->cur_ctx = ctx;
+	a6xx_gpu->cur_ctx_seqno = ctx->seqno;
 }
 
 static void a6xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
@@ -887,7 +887,7 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
 	/* Always come up on rb 0 */
 	a6xx_gpu->cur_ring = gpu->rb[0];
 
-	a6xx_gpu->cur_ctx = NULL;
+	a6xx_gpu->cur_ctx_seqno = 0;
 
 	/* Enable the SQE_to start the CP engine */
 	gpu_write(gpu, REG_A6XX_CP_SQE_CNTL, 1);
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
index 69765a722cae6..f923edbd5daaf 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h
@@ -19,7 +19,16 @@ struct a6xx_gpu {
 	uint64_t sqe_iova;
 
 	struct msm_ringbuffer *cur_ring;
-	struct msm_file_private *cur_ctx;
+
+	/**
+	 * cur_ctx_seqno:
+	 *
+	 * The ctx->seqno value of the context with current pgtables
+	 * installed.  Tracked by seqno rather than pointer value to
+	 * avoid dangling pointers, and cases where a ctx can be freed
+	 * and a new one created with the same address.
+	 */
+	int cur_ctx_seqno;
 
 	struct a6xx_gmu gmu;
 
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index edee4c2a76ce4..33e42b2f9cfcb 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -581,6 +581,7 @@ static void load_gpu(struct drm_device *dev)
 
 static int context_init(struct drm_device *dev, struct drm_file *file)
 {
+	static atomic_t ident = ATOMIC_INIT(0);
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_file_private *ctx;
 
@@ -594,6 +595,8 @@ static int context_init(struct drm_device *dev, struct drm_file *file)
 	ctx->aspace = msm_gpu_create_private_address_space(priv->gpu, current);
 	file->driver_priv = ctx;
 
+	ctx->seqno = atomic_inc_return(&ident);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index d96b254b8aa46..1fe809add8f62 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -58,6 +58,7 @@ struct msm_file_private {
 	int queueid;
 	struct msm_gem_address_space *aspace;
 	struct kref ref;
+	int seqno;
 };
 
 enum msm_mdp_plane_property {
-- 
GitLab


From 2c5658717428ae4f7c0ef8706b45f0d00821d744 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 1 Oct 2021 15:33:08 +0300
Subject: [PATCH 0395/4878] drm/msm/dsi: Fix an error code in
 msm_dsi_modeset_init()

commit 739b4e7756d3301dd673ca517afca46a5f635562 upstream.

Return an error code if msm_dsi_manager_validate_current_config().
Don't return success.

Fixes: 8b03ad30e314 ("drm/msm/dsi: Use one connector for dual DSI mode")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211001123308.GF2283@kili
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/dsi/dsi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index 7e364b9c9f9e1..1adead764feed 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -208,8 +208,10 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
 		goto fail;
 	}
 
-	if (!msm_dsi_manager_validate_current_config(msm_dsi->id))
+	if (!msm_dsi_manager_validate_current_config(msm_dsi->id)) {
+		ret = -EINVAL;
 		goto fail;
+	}
 
 	msm_dsi->encoder = encoder;
 
-- 
GitLab


From c6b2400095ba232b1f2a0a499c2d7847940a9a2e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 1 Oct 2021 15:34:09 +0300
Subject: [PATCH 0396/4878] drm/msm/dsi: fix off by one in dsi_bus_clk_enable
 error handling

commit c8f01ffc83923a91e8087aaa077de13354a7aa59 upstream.

This disables a lock which wasn't enabled and it does not disable
the first lock in the array.

Fixes: 6e0eb52eba9e ("drm/msm/dsi: Parse bus clocks from a list")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211001123409.GG2283@kili
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index b17ac6c275549..96b5dcf8e4540 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -464,7 +464,7 @@ static int dsi_bus_clk_enable(struct msm_dsi_host *msm_host)
 
 	return 0;
 err:
-	for (; i > 0; i--)
+	while (--i >= 0)
 		clk_disable_unprepare(msm_host->bus_clks[i]);
 
 	return ret;
-- 
GitLab


From 057ee6843bbbe9e7114b6b35b6beab655288df24 Mon Sep 17 00:00:00 2001
From: Jackie Liu <liuyun01@kylinos.cn>
Date: Mon, 23 Aug 2021 17:25:26 +0800
Subject: [PATCH 0397/4878] acpi/arm64: fix next_platform_timer() section
 mismatch error

commit 596143e3aec35c93508d6b7a05ddc999ee209b61 upstream.

Fix modpost Section mismatch error in next_platform_timer().

  [...]
  WARNING: modpost: vmlinux.o(.text.unlikely+0x26e60): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
  The function next_platform_timer() references
  the variable __initdata acpi_gtdt_desc.
  This is often because next_platform_timer lacks a __initdata
  annotation or the annotation of acpi_gtdt_desc is wrong.

  WARNING: modpost: vmlinux.o(.text.unlikely+0x26e64): Section mismatch in reference from the function next_platform_timer() to the variable .init.data:acpi_gtdt_desc
  The function next_platform_timer() references
  the variable __initdata acpi_gtdt_desc.
  This is often because next_platform_timer lacks a __initdata
  annotation or the annotation of acpi_gtdt_desc is wrong.

  ERROR: modpost: Section mismatches detected.
  Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
  make[1]: *** [scripts/Makefile.modpost:59: vmlinux.symvers] Error 1
  make[1]: *** Deleting file 'vmlinux.symvers'
  make: *** [Makefile:1176: vmlinux] Error 2
  [...]

Fixes: a712c3ed9b8a ("acpi/arm64: Add memory-mapped timer support in GTDT driver")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/20210823092526.2407526-1-liu.yun@linux.dev
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/arm64/gtdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/arm64/gtdt.c b/drivers/acpi/arm64/gtdt.c
index 0a0a982f9c28d..c0e77c1c8e09d 100644
--- a/drivers/acpi/arm64/gtdt.c
+++ b/drivers/acpi/arm64/gtdt.c
@@ -36,7 +36,7 @@ struct acpi_gtdt_descriptor {
 
 static struct acpi_gtdt_descriptor acpi_gtdt_desc __initdata;
 
-static inline void *next_platform_timer(void *platform_timer)
+static inline __init void *next_platform_timer(void *platform_timer)
 {
 	struct acpi_gtdt_header *gh = platform_timer;
 
-- 
GitLab


From fdaff7f9e806fe241de0c4613ab6615000db23e9 Mon Sep 17 00:00:00 2001
From: Prashant Malani <pmalani@chromium.org>
Date: Tue, 28 Sep 2021 03:19:30 -0700
Subject: [PATCH 0398/4878] platform/x86: intel_scu_ipc: Fix busy loop expiry
 time
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 41512e4dc0b84525495e784295092592adb87f1b upstream.

The macro IPC_TIMEOUT is already in jiffies (it is also used like that
elsewhere in the file when calling wait_for_completion_timeout()). Don’t
convert it using helper functions for the purposes of calculating the
busy loop expiry time.

Fixes: e7b7ab3847c9 (“platform/x86: intel_scu_ipc: Sleeping is fine when polling”)
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Cc: Benson Leung <bleung@chromium.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20210928101932.2543937-2-pmalani@chromium.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/x86/intel_scu_ipc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index d9cf7f7602b0b..425d2064148f9 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -232,7 +232,7 @@ static inline u32 ipc_data_readl(struct intel_scu_ipc_dev *scu, u32 offset)
 /* Wait till scu status is busy */
 static inline int busy_loop(struct intel_scu_ipc_dev *scu)
 {
-	unsigned long end = jiffies + msecs_to_jiffies(IPC_TIMEOUT);
+	unsigned long end = jiffies + IPC_TIMEOUT;
 
 	do {
 		u32 status;
-- 
GitLab


From 51f6e72ca656a80fbb76f640a51e1628ec15776f Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 7 Oct 2021 19:49:57 +0200
Subject: [PATCH 0399/4878] mqprio: Correct stats in mqprio_dump_class_stats().

commit 14132690860e4d06aa3e1c4d7d8e9866ba7756dd upstream.

Introduction of lockless subqueues broke the class statistics.
Before the change stats were accumulated in `bstats' and `qstats'
on the stack which was then copied to struct gnet_dump.

After the change the `bstats' and `qstats' are initialized to 0
and never updated, yet still fed to gnet_dump. The code updates
the global qdisc->cpu_bstats and qdisc->cpu_qstats instead,
clobbering them. Most likely a copy-paste error from the code in
mqprio_dump().

__gnet_stats_copy_basic() and __gnet_stats_copy_queue() accumulate
the values for per-CPU case but for global stats they overwrite
the value, so only stats from the last loop iteration / tc end up
in sch->[bq]stats.

Use the on-stack [bq]stats variables again and add the stats manually
in the global case.

Fixes: ce679e8df7ed2 ("net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mqprio")
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
https://lore.kernel.org/all/20211007175000.2334713-2-bigeasy@linutronix.de/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/sch_mqprio.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index 8766ab5b87880..5eb3b1b7ae5e7 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -529,22 +529,28 @@ static int mqprio_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 		for (i = tc.offset; i < tc.offset + tc.count; i++) {
 			struct netdev_queue *q = netdev_get_tx_queue(dev, i);
 			struct Qdisc *qdisc = rtnl_dereference(q->qdisc);
-			struct gnet_stats_basic_cpu __percpu *cpu_bstats = NULL;
-			struct gnet_stats_queue __percpu *cpu_qstats = NULL;
 
 			spin_lock_bh(qdisc_lock(qdisc));
+
 			if (qdisc_is_percpu_stats(qdisc)) {
-				cpu_bstats = qdisc->cpu_bstats;
-				cpu_qstats = qdisc->cpu_qstats;
+				qlen = qdisc_qlen_sum(qdisc);
+
+				__gnet_stats_copy_basic(NULL, &bstats,
+							qdisc->cpu_bstats,
+							&qdisc->bstats);
+				__gnet_stats_copy_queue(&qstats,
+							qdisc->cpu_qstats,
+							&qdisc->qstats,
+							qlen);
+			} else {
+				qlen		+= qdisc->q.qlen;
+				bstats.bytes	+= qdisc->bstats.bytes;
+				bstats.packets	+= qdisc->bstats.packets;
+				qstats.backlog	+= qdisc->qstats.backlog;
+				qstats.drops	+= qdisc->qstats.drops;
+				qstats.requeues	+= qdisc->qstats.requeues;
+				qstats.overlimits += qdisc->qstats.overlimits;
 			}
-
-			qlen = qdisc_qlen_sum(qdisc);
-			__gnet_stats_copy_basic(NULL, &sch->bstats,
-						cpu_bstats, &qdisc->bstats);
-			__gnet_stats_copy_queue(&sch->qstats,
-						cpu_qstats,
-						&qdisc->qstats,
-						qlen);
 			spin_unlock_bh(qdisc_lock(qdisc));
 		}
 
-- 
GitLab


From ecfd4fa15b06564d5e4f5a03886d28daa4310060 Mon Sep 17 00:00:00 2001
From: chongjiapeng <jiapeng.chong@linux.alibaba.com>
Date: Sat, 9 Oct 2021 16:09:26 +0800
Subject: [PATCH 0400/4878] qed: Fix missing error code in qed_slowpath_start()

commit a5a14ea7b4e55604acb0dc9d88fdb4cb6945bc77 upstream.

The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'rc'.

Eliminate the follow smatch warning:

drivers/net/ethernet/qlogic/qed/qed_main.c:1298 qed_slowpath_start()
warn: missing error code 'rc'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Fixes: d51e4af5c209 ("qed: aRFS infrastructure support")
Signed-off-by: chongjiapeng <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qed/qed_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 6bb9ec98a12b5..41bc31e3f9356 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -1295,6 +1295,7 @@ static int qed_slowpath_start(struct qed_dev *cdev,
 			} else {
 				DP_NOTICE(cdev,
 					  "Failed to acquire PTT for aRFS\n");
+				rc = -EINVAL;
 				goto err;
 			}
 		}
-- 
GitLab


From 6da9af2d25318fcb9e64b78de3c977bddc01f476 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Mon, 11 Oct 2021 17:22:49 +0200
Subject: [PATCH 0401/4878] r8152: select CRC32 and
 CRYPTO/CRYPTO_HASH/CRYPTO_SHA256

commit 9973a43012b6ad1720dbc4d5faf5302c28635b8c upstream.

Fix the following build/link errors by adding a dependency on
CRYPTO, CRYPTO_HASH, CRYPTO_SHA256 and CRC32:

  ld: drivers/net/usb/r8152.o: in function `rtl8152_fw_verify_checksum':
  r8152.c:(.text+0x2b2a): undefined reference to `crypto_alloc_shash'
  ld: r8152.c:(.text+0x2bed): undefined reference to `crypto_shash_digest'
  ld: r8152.c:(.text+0x2c50): undefined reference to `crypto_destroy_tfm'
  ld: drivers/net/usb/r8152.o: in function `_rtl8152_set_rx_mode':
  r8152.c:(.text+0xdcb0): undefined reference to `crc32_le'

Fixes: 9370f2d05a2a1 ("r8152: support request_firmware for RTL8153")
Fixes: ac718b69301c7 ("net/usb: new driver for RTL8152")
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index b46993d5f9978..4efad42b9aa97 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -99,6 +99,10 @@ config USB_RTL8150
 config USB_RTL8152
 	tristate "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters"
 	select MII
+	select CRC32
+	select CRYPTO
+	select CRYPTO_HASH
+	select CRYPTO_SHA256
 	help
 	  This option adds support for Realtek RTL8152 based USB 2.0
 	  10/100 Ethernet adapters and RTL8153 based USB 3.0 10/100/1000
-- 
GitLab


From 9c546af181bcda53a822522016aeff1f7aaa517b Mon Sep 17 00:00:00 2001
From: Baowen Zheng <baowen.zheng@corigine.com>
Date: Tue, 12 Oct 2021 14:48:50 +0200
Subject: [PATCH 0402/4878] nfp: flow_offload: move flow_indr_dev_register from
 app init to app start

commit 60d950f443a52d950126ad664fbd4a1eb8353dc9 upstream.

In commit 74fc4f828769 ("net: Fix offloading indirect devices dependency
on qdisc order creation"), it adds a process to trigger the callback to
setup the bo callback when the driver regists a callback.

In our current implement, we are not ready to run the callback when nfp
call the function flow_indr_dev_register, then there will be error
message as:

kernel: Oops: 0000 [#1] SMP PTI
kernel: CPU: 0 PID: 14119 Comm: kworker/0:0 Tainted: G
kernel: Workqueue: events work_for_cpu_fn
kernel: RIP: 0010:nfp_flower_indr_setup_tc_cb+0x258/0x410
kernel: RSP: 0018:ffffbc1e02c57bf8 EFLAGS: 00010286
kernel: RAX: 0000000000000000 RBX: ffff9c761fabc000 RCX: 0000000000000001
kernel: RDX: 0000000000000001 RSI: fffffffffffffff0 RDI: ffffffffc0be9ef1
kernel: RBP: ffffbc1e02c57c58 R08: ffffffffc08f33aa R09: ffff9c6db7478800
kernel: R10: 0000009c003f6e00 R11: ffffbc1e02800000 R12: ffffbc1e000d9000
kernel: R13: ffffbc1e000db428 R14: ffff9c6db7478800 R15: ffff9c761e884e80
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: fffffffffffffff0 CR3: 00000009e260a004 CR4: 00000000007706f0
kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kernel: PKRU: 55555554
kernel: Call Trace:
kernel: ? flow_indr_dev_register+0xab/0x210
kernel: ? __cond_resched+0x15/0x30
kernel: ? kmem_cache_alloc_trace+0x44/0x4b0
kernel: ? nfp_flower_setup_tc+0x1d0/0x1d0 [nfp]
kernel: flow_indr_dev_register+0x158/0x210
kernel: ? tcf_block_unbind+0xe0/0xe0
kernel: nfp_flower_init+0x40b/0x650 [nfp]
kernel: nfp_net_pci_probe+0x25f/0x960 [nfp]
kernel: ? nfp_rtsym_read_le+0x76/0x130 [nfp]
kernel: nfp_pci_probe+0x6a9/0x820 [nfp]
kernel: local_pci_probe+0x45/0x80

So we need to call flow_indr_dev_register in app start process instead of
init stage.

Fixes: 74fc4f828769 ("net: Fix offloading indirect devices dependency on qdisc order creation")
Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Link: https://lore.kernel.org/r/20211012124850.13025-1-louis.peens@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/netronome/nfp/flower/main.c  | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.c b/drivers/net/ethernet/netronome/nfp/flower/main.c
index c029950a81e20..ac1dcfa1d1790 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/main.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.c
@@ -830,10 +830,6 @@ static int nfp_flower_init(struct nfp_app *app)
 	if (err)
 		goto err_cleanup;
 
-	err = flow_indr_dev_register(nfp_flower_indr_setup_tc_cb, app);
-	if (err)
-		goto err_cleanup;
-
 	if (app_priv->flower_ext_feats & NFP_FL_FEATS_VF_RLIM)
 		nfp_flower_qos_init(app);
 
@@ -942,7 +938,20 @@ static int nfp_flower_start(struct nfp_app *app)
 			return err;
 	}
 
-	return nfp_tunnel_config_start(app);
+	err = flow_indr_dev_register(nfp_flower_indr_setup_tc_cb, app);
+	if (err)
+		return err;
+
+	err = nfp_tunnel_config_start(app);
+	if (err)
+		goto err_tunnel_config;
+
+	return 0;
+
+err_tunnel_config:
+	flow_indr_dev_unregister(nfp_flower_indr_setup_tc_cb, app,
+				 nfp_flower_setup_indr_tc_release);
+	return err;
 }
 
 static void nfp_flower_stop(struct nfp_app *app)
-- 
GitLab


From f33890d9bb59cf7100d28a483ef1d35d45299ef4 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Tue, 12 Oct 2021 14:40:37 +0300
Subject: [PATCH 0403/4878] net: mscc: ocelot: warn when a PTP IRQ is raised
 for an unknown skb

commit 9fde506e0c53b8309f69b18b4b8144c544b4b3b1 upstream.

When skb_match is NULL, it means we received a PTP IRQ for a timestamp
ID that the kernel has no idea about, since there is no skb in the
timestamping queue with that timestamp ID.

This is a grave error and not something to just "continue" over.
So print a big warning in case this happens.

Also, move the check above ocelot_get_hwtimestamp(), there is no point
in reading the full 64-bit current PTP time if we're not going to do
anything with it anyway for this skb.

Fixes: 4e3b0468e6d7 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mscc/ocelot.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 5bfc7acfd13a9..8c45b236649a9 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -594,12 +594,12 @@ void ocelot_get_txtstamp(struct ocelot *ocelot)
 
 		spin_unlock_irqrestore(&port->tx_skbs.lock, flags);
 
+		if (WARN_ON(!skb_match))
+			continue;
+
 		/* Get the h/w timestamp */
 		ocelot_get_hwtimestamp(ocelot, &ts);
 
-		if (unlikely(!skb_match))
-			continue;
-
 		/* Set the timestamp into the skb */
 		memset(&shhwtstamps, 0, sizeof(shhwtstamps));
 		shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec);
-- 
GitLab


From 3593fa147c86f996916415359494f8e85075db8b Mon Sep 17 00:00:00 2001
From: Shannon Nelson <snelson@pensando.io>
Date: Fri, 8 Oct 2021 12:38:01 -0700
Subject: [PATCH 0404/4878] ionic: don't remove netdev->dev_addr when syncing
 uc list

commit 5c976a56570f29aaf4a2f9a1bf99789c252183c9 upstream.

Bridging, and possibly other upper stack gizmos, adds the
lower device's netdev->dev_addr to its own uc list, and
then requests it be deleted when the upper bridge device is
removed.  This delete request also happens with the bridging
vlan_filtering is enabled and then disabled.

Bonding has a similar behavior with the uc list, but since it
also uses set_mac to manage netdev->dev_addr, it doesn't have
the same the failure case.

Because we store our netdev->dev_addr in our uc list, we need
to ignore the delete request from dev_uc_sync so as to not
lose the address and all hope of communicating.  Note that
ndo_set_mac_address is expressly changing netdev->dev_addr,
so no limitation is set there.

Fixes: 2a654540be10 ("ionic: Add Rx filter and rx_mode ndo support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 6dc7ce6494488..1b44155fa24b2 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -1096,6 +1096,10 @@ static int ionic_ndo_addr_add(struct net_device *netdev, const u8 *addr)
 
 static int ionic_addr_del(struct net_device *netdev, const u8 *addr)
 {
+	/* Don't delete our own address from the uc list */
+	if (ether_addr_equal(addr, netdev->dev_addr))
+		return 0;
+
 	return ionic_lif_addr(netdev_priv(netdev), addr, false, true);
 }
 
-- 
GitLab


From 3e287365216330ba5041f7fa1369460ad716f422 Mon Sep 17 00:00:00 2001
From: Maarten Zanders <maarten.zanders@mind.be>
Date: Mon, 11 Oct 2021 16:27:20 +0200
Subject: [PATCH 0405/4878] net: dsa: mv88e6xxx: don't use PHY_DETECT on
 internal PHY's

commit 4a3e0aeddf091f00974b02627c157843ce382a24 upstream.

mv88e6xxx_port_ppu_updates() interpretes data in the PORT_STS
register incorrectly for internal ports (ie no PPU). In these
cases, the PHY_DETECT bit indicates link status. This results
in forcing the MAC state whenever the PHY link goes down which
is not intended. As a side effect, LED's configured to show
link status stay lit even though the physical link is down.

Add a check in mac_link_down and mac_link_up to see if it
concerns an external port and only then, look at PPU status.

Fixes: 5d5b231da7ac (net: dsa: mv88e6xxx: use PHY_DETECT in mac_link_up/mac_link_down)
Reported-by: Maarten Zanders <m.zanders@televic.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Maarten Zanders <maarten.zanders@mind.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 18388ea5ebd96..afc5500ef8ed9 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -726,7 +726,11 @@ static void mv88e6xxx_mac_link_down(struct dsa_switch *ds, int port,
 	ops = chip->info->ops;
 
 	mv88e6xxx_reg_lock(chip);
-	if ((!mv88e6xxx_port_ppu_updates(chip, port) ||
+	/* Internal PHYs propagate their configuration directly to the MAC.
+	 * External PHYs depend on whether the PPU is enabled for this port.
+	 */
+	if (((!mv88e6xxx_phy_is_internal(ds, port) &&
+	      !mv88e6xxx_port_ppu_updates(chip, port)) ||
 	     mode == MLO_AN_FIXED) && ops->port_set_link)
 		err = ops->port_set_link(chip, port, LINK_FORCED_DOWN);
 	mv88e6xxx_reg_unlock(chip);
@@ -749,7 +753,12 @@ static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port,
 	ops = chip->info->ops;
 
 	mv88e6xxx_reg_lock(chip);
-	if (!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) {
+	/* Internal PHYs propagate their configuration directly to the MAC.
+	 * External PHYs depend on whether the PPU is enabled for this port.
+	 */
+	if ((!mv88e6xxx_phy_is_internal(ds, port) &&
+	     !mv88e6xxx_port_ppu_updates(chip, port)) ||
+	    mode == MLO_AN_FIXED) {
 		/* FIXME: for an automedia port, should we force the link
 		 * down here - what if the link comes up due to "other" media
 		 * while we're bringing the port up, how is the exclusivity
-- 
GitLab


From 3a9842b42e421f6496a78a42a123639cf6d7ed31 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 20 Oct 2021 11:45:06 +0200
Subject: [PATCH 0406/4878] Linux 5.10.75

Link: https://lore.kernel.org/r/20211018132334.702559133@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 84d540aed24c9..74318cf964b89 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 74
+SUBLEVEL = 75
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 67946e40368065eb60d35a263d60a7cd6478ec84 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Thu, 9 Sep 2021 02:37:41 +0000
Subject: [PATCH 0407/4878] FROMGIT: dma-buf: system_heap: Avoid warning on
 mid-order allocations
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When trying to do mid-order allocations, set __GFP_NOWARN to
avoid warning messages if the allocation fails, as we will
still fall back to single page allocatitions in that case.
This is the similar to what we already do for large order
allocations.

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Liam Mark <lmark@codeaurora.org>
Cc: Chris Goldsworthy <cgoldswo@codeaurora.org>
Cc: Laura Abbott <labbott@kernel.org>
Cc: Brian Starkey <Brian.Starkey@arm.com>
Cc: Hridya Valsaraju <hridya@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sandeep Patil <sspatil@google.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Ørjan Eide <orjan.eide@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: James Jones <jajones@nvidia.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210909023741.2592429-1-john.stultz@linaro.org
(cherry picked from commit 5ad2d11feafbb9a51291754c66b35e450ac6ee59
 git://anongit.freedesktop.org/drm/drm-misc drm-misc-next)
Signed-off-by: John Stultz <john.stultz@linaro.org>
Bug: 177702259
Change-Id: I48be9fad7fa6cb14547fa9b24a648763894ef321
---
 drivers/dma-buf/heaps/system_heap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 5f71a73a00a44..2aa3b5eafaff5 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -49,11 +49,12 @@ struct dma_heap_attachment {
 	bool uncached;
 };
 
+#define LOW_ORDER_GFP (GFP_HIGHUSER | __GFP_ZERO | __GFP_COMP)
+#define MID_ORDER_GFP (LOW_ORDER_GFP | __GFP_NOWARN)
 #define HIGH_ORDER_GFP  (((GFP_HIGHUSER | __GFP_ZERO | __GFP_NOWARN \
 				| __GFP_NORETRY) & ~__GFP_RECLAIM) \
 				| __GFP_COMP)
-#define LOW_ORDER_GFP (GFP_HIGHUSER | __GFP_ZERO | __GFP_COMP)
-static gfp_t order_flags[] = {HIGH_ORDER_GFP, LOW_ORDER_GFP, LOW_ORDER_GFP};
+static gfp_t order_flags[] = {HIGH_ORDER_GFP, MID_ORDER_GFP, LOW_ORDER_GFP};
 /*
  * The selection of the orders used for allocation (1MB, 64K, 4K) is designed
  * to match with the sizes often found in IOMMUs. Using order 4 pages instead
-- 
GitLab


From 50f9dcec888ac70dd37d981512da82e4a13560b7 Mon Sep 17 00:00:00 2001
From: Kashyap Desai <kashyap.desai@broadcom.com>
Date: Mon, 15 Feb 2021 13:10:44 +0530
Subject: [PATCH 0408/4878] UPSTREAM: scsi: core: Add mq_poll support to SCSI
 layer

Currently IOPOLL support is only available in block layer. This patch
adds mq_poll support to the SCSI layer.

Link: https://lore.kernel.org/r/20210215074048.19424-2-kashyap.desai@broadcom.com
Cc: sumit.saxena@broadcom.com
Cc: chandrakanth.patil@broadcom.com
Cc: linux-block@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit af1830956dc3dca0c87b2d679f7c91a8fe0331e1)
Bug: 199284641
Change-Id: I5d670e1af76f6b632159e3610bd74267781f21b8
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/scsi_lib.c  | 16 ++++++++++++++++
 include/scsi/scsi_host.h | 11 +++++++++++
 2 files changed, 27 insertions(+)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index d89db29fa829c..f8d83d30fd9fe 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1781,6 +1781,19 @@ static void scsi_mq_exit_request(struct blk_mq_tag_set *set, struct request *rq,
 			       cmd->sense_buffer);
 }
 
+
+static int scsi_mq_poll(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+	struct scsi_device *sdev = q->queuedata;
+	struct Scsi_Host *shost = sdev->host;
+
+	if (shost->hostt->mq_poll)
+		return shost->hostt->mq_poll(shost, hctx->queue_num);
+
+	return 0;
+}
+
 static int scsi_map_queues(struct blk_mq_tag_set *set)
 {
 	struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set);
@@ -1848,6 +1861,7 @@ static const struct blk_mq_ops scsi_mq_ops_no_commit = {
 	.cleanup_rq	= scsi_cleanup_rq,
 	.busy		= scsi_mq_lld_busy,
 	.map_queues	= scsi_map_queues,
+	.poll		= scsi_mq_poll,
 };
 
 
@@ -1876,6 +1890,7 @@ static const struct blk_mq_ops scsi_mq_ops = {
 	.cleanup_rq	= scsi_cleanup_rq,
 	.busy		= scsi_mq_lld_busy,
 	.map_queues	= scsi_map_queues,
+	.poll		= scsi_mq_poll,
 };
 
 struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev)
@@ -1908,6 +1923,7 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost)
 	else
 		tag_set->ops = &scsi_mq_ops_no_commit;
 	tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1;
+	tag_set->nr_maps = shost->nr_maps ? : 1;
 	tag_set->queue_depth = shost->can_queue;
 	tag_set->cmd_size = cmd_size;
 	tag_set->numa_node = NUMA_NO_NODE;
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 8c0d37f389df7..4714b9dd1ecdf 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -271,6 +271,16 @@ struct scsi_host_template {
 	 */
 	int (* map_queues)(struct Scsi_Host *shost);
 
+	/*
+	 * SCSI interface of blk_poll - poll for IO completions.
+	 * Only applicable if SCSI LLD exposes multiple h/w queues.
+	 *
+	 * Return value: Number of completed entries found.
+	 *
+	 * Status: OPTIONAL
+	 */
+	int (* mq_poll)(struct Scsi_Host *shost, unsigned int queue_num);
+
 	/*
 	 * Check if scatterlists need to be padded for DMA draining.
 	 *
@@ -616,6 +626,7 @@ struct Scsi_Host {
 	 * the total queue depth is can_queue.
 	 */
 	unsigned nr_hw_queues;
+	unsigned nr_maps;
 	unsigned active_mode:2;
 	unsigned unchecked_isa_dma:1;
 
-- 
GitLab


From 0b77effb9ea345376ebac502cc456001932e1f45 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 5 Oct 2021 14:33:06 +0100
Subject: [PATCH 0409/4878] FROMLIST: sign-file: Use OpenSSL provided define to
 compile out deprecated APIs

OpenSSL's ENGINE API is deprecated in OpenSSL v3.0.

Use OPENSSL_NO_ENGINE to disallow its use and fall back on the BIO API.

This is required for fully hermetic builds in android-kernel.

Link: https://lore.kernel.org/lkml/20211005161833.1522737-1-lee.jones@linaro.org/
Fixes: bce40b72a381b ("ANDROID: Disable hermetic toolchain for allmodconfig builds")
Co-developed-by: Adam Langley <agl@google.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I5ecac477c274ef040934710fd4a042c133942e34
(cherry picked from commit e9d39639a5297c1601f025c8fddd30a936fedc16)
---
 scripts/sign-file.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/scripts/sign-file.c b/scripts/sign-file.c
index fbd34b8e8f578..fa3fa59db6669 100644
--- a/scripts/sign-file.c
+++ b/scripts/sign-file.c
@@ -135,7 +135,9 @@ static int pem_pw_cb(char *buf, int len, int w, void *v)
 static EVP_PKEY *read_private_key(const char *private_key_name)
 {
 	EVP_PKEY *private_key;
+	BIO *b;
 
+#ifndef OPENSSL_NO_ENGINE
 	if (!strncmp(private_key_name, "pkcs11:", 7)) {
 		ENGINE *e;
 
@@ -153,17 +155,16 @@ static EVP_PKEY *read_private_key(const char *private_key_name)
 		private_key = ENGINE_load_private_key(e, private_key_name,
 						      NULL, NULL);
 		ERR(!private_key, "%s", private_key_name);
-	} else {
-		BIO *b;
-
-		b = BIO_new_file(private_key_name, "rb");
-		ERR(!b, "%s", private_key_name);
-		private_key = PEM_read_bio_PrivateKey(b, NULL, pem_pw_cb,
-						      NULL);
-		ERR(!private_key, "%s", private_key_name);
-		BIO_free(b);
+		return private_key;
 	}
+#endif
 
+	b = BIO_new_file(private_key_name, "rb");
+	ERR(!b, "%s", private_key_name);
+	private_key = PEM_read_bio_PrivateKey(b, NULL, pem_pw_cb,
+					      NULL);
+	ERR(!private_key, "%s", private_key_name);
+	BIO_free(b);
 	return private_key;
 }
 
-- 
GitLab


From 64fd52d1a0d6862f7a8b3b28fe82e3d810484036 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 7 Oct 2021 11:32:12 +0100
Subject: [PATCH 0410/4878] ANDROID: sign-file: Fix warning when
 OPENSSL_NO_ENGINE is set

Place drain_openssl_errors() function under the same build constraints
as the code that calls it.

  scripts/sign-file.c:96:13: warning: unused function 'drain_openssl_errors' [-Wunused-function]
  static void drain_openssl_errors(void)
            ^
  1 warning generated.

For some reason this wasn't picked-up on during automated testing.

Fixes: e9d39639a529 ("FROMLIST: sign-file: Use OpenSSL provided define to compile out deprecated APIs")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I3b337a9deac4ee83cb780792ece8f5f701a01f5f
(cherry picked from commit fad17703b529eeb423eab346ffb8e8fd16baf745)
---
 scripts/sign-file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/sign-file.c b/scripts/sign-file.c
index fa3fa59db6669..8f06328d1cd11 100644
--- a/scripts/sign-file.c
+++ b/scripts/sign-file.c
@@ -92,6 +92,7 @@ static void display_openssl_errors(int l)
 	}
 }
 
+#ifndef OPENSSL_NO_ENGINE
 static void drain_openssl_errors(void)
 {
 	const char *file;
@@ -101,6 +102,7 @@ static void drain_openssl_errors(void)
 		return;
 	while (ERR_get_error_line(&file, &line)) {}
 }
+#endif
 
 #define ERR(cond, fmt, ...)				\
 	do {						\
-- 
GitLab


From e6c72a49cf8b0a0eb34f576114d51354680f8876 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 5 Oct 2021 17:23:02 +0100
Subject: [PATCH 0411/4878] ANDROID: build.config.allmodconfig: Enable hermetic
 builds

This was previously not possible due to the lack of kernel module
signing support in BoringSSL.

Said support has now landed in Kernel Build Tools.

Fixes: bce40b72a381b ("ANDROID: Disable hermetic toolchain for allmodconfig builds")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: Ideddac33d8d79f2819a9f68e3e80a0b045e58907
(cherry picked from commit 055fcf7583025227dec9d0417c347a5cfaeb8471)
---
 build.config.allmodconfig | 2 --
 1 file changed, 2 deletions(-)

diff --git a/build.config.allmodconfig b/build.config.allmodconfig
index 945c4bac54c61..fe3aefa905182 100644
--- a/build.config.allmodconfig
+++ b/build.config.allmodconfig
@@ -1,7 +1,5 @@
 DEFCONFIG=allmodconfig
 
-HERMETIC_TOOLCHAIN=0
-
 POST_DEFCONFIG_CMDS="update_config"
 function update_config() {
     ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
-- 
GitLab


From 4016d452a40276fa99e7a0b64a3617a48ae6d6e4 Mon Sep 17 00:00:00 2001
From: Jack Pham <jackp@codeaurora.org>
Date: Thu, 21 Oct 2021 11:01:28 -0700
Subject: [PATCH 0412/4878] FROMGIT: usb: dwc3: gadget: Skip resizing EP's TX
 FIFO if already resized

Some functions may dynamically enable and disable their endpoints
regularly throughout their operation, particularly when Set Interface
is employed to switch between Alternate Settings.  For instance the
UAC2 function has its respective endpoints for playback & capture
associated with AltSetting 1, in which case those endpoints would not
get enabled until the host activates the AltSetting.  And they
conversely become disabled when the interfaces' AltSetting 0 is
chosen.

With the DWC3 FIFO resizing algorithm recently added, every
usb_ep_enable() call results in a call to resize that EP's TXFIFO,
but if the same endpoint is enabled again and again, this incorrectly
leads to FIFO RAM allocation exhaustion as the mechanism did not
account for the possibility that endpoints can be re-enabled many
times.

Example log splat:

	dwc3 a600000.dwc3: Fifosize(3717) > RAM size(3462) ep3in depth:217973127
	configfs-gadget gadget: u_audio_start_capture:521 Error!
	dwc3 a600000.dwc3: request 000000000be13e18 was not queued to ep3in

Add another bit DWC3_EP_TXFIFO_RESIZED to dep->flags to keep track of
whether an EP had already been resized in the current configuration.
If so, bail out of dwc3_gadget_resize_tx_fifos() to avoid the
calculation error resulting from accumulating the EP's FIFO depth
repeatedly.  This flag is retained across multiple ep_disable() and
ep_enable() calls and is cleared when GTXFIFOSIZn is reset in
dwc3_gadget_clear_tx_fifos() upon receiving the next Set Config.

Fixes: 9f607a309fbe9 ("usb: dwc3: Resize TX FIFOs to meet EP bursting requirements")
Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Link: https://lore.kernel.org/r/20211021180129.27938-1-jackp@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

(cherry picked from commit 876a75cb520f5869533a30a6ca01545ec817b7a0
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next)
Bug: 204047971
Change-Id: Ia104c2fa9be36182a23a7e6f923e499ef3bcc3b1
Signed-off-by: Jack Pham <quic_jackp@quicinc.com>
---
 drivers/usb/dwc3/core.h   | 1 +
 drivers/usb/dwc3/gadget.c | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index d938f85c58471..48244e076c30f 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -728,6 +728,7 @@ struct dwc3_ep {
 #define DWC3_EP_FORCE_RESTART_STREAM	BIT(9)
 #define DWC3_EP_FIRST_STREAM_PRIMED	BIT(10)
 #define DWC3_EP_PENDING_CLEAR_STALL	BIT(11)
+#define DWC3_EP_TXFIFO_RESIZED		BIT(12)
 
 	/* This last one is specific to EP0 */
 #define DWC3_EP0_DIR_IN		BIT(31)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2867c923a8053..0168d26d35f18 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -700,6 +700,7 @@ void dwc3_gadget_clear_tx_fifos(struct dwc3 *dwc)
 				   DWC31_GTXFIFOSIZ_TXFRAMNUM;
 
 		dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(num >> 1), size);
+		dep->flags &= ~DWC3_EP_TXFIFO_RESIZED;
 	}
 	dwc->num_ep_resized = 0;
 }
@@ -745,6 +746,10 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep)
 	if (!usb_endpoint_dir_in(dep->endpoint.desc) || dep->number <= 1)
 		return 0;
 
+	/* bail if already resized */
+	if (dep->flags & DWC3_EP_TXFIFO_RESIZED)
+		return 0;
+
 	ram1_depth = DWC3_RAM1_DEPTH(dwc->hwparams.hwparams7);
 
 	if ((dep->endpoint.maxburst > 1 &&
@@ -805,6 +810,7 @@ static int dwc3_gadget_resize_tx_fifos(struct dwc3_ep *dep)
 	}
 
 	dwc3_writel(dwc->regs, DWC3_GTXFIFOSIZ(dep->number >> 1), fifo_size);
+	dep->flags |= DWC3_EP_TXFIFO_RESIZED;
 	dwc->num_ep_resized++;
 
 	return 0;
@@ -993,7 +999,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
 
 	dep->stream_capable = false;
 	dep->type = 0;
-	dep->flags = 0;
+	dep->flags &= DWC3_EP_TXFIFO_RESIZED;
 
 	return 0;
 }
-- 
GitLab


From 8637bab65fbd333dfd3a84f347956014438bf8ca Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Tue, 26 Oct 2021 09:57:12 +0800
Subject: [PATCH 0413/4878] Revert "Revert "sched/core: Initialize the idle
 task with preemption disabled""

This reverts commit 3adeb2ab1ae3e5820d1acd11e3f4ad8d9b0ec102.

Commit 3c51d82d0b ("sched/core: Initialize the idle task with preemption
disabled") was reverted because of a bug (b/201047587). Fix is now
available so reintroduces the commit.

Bug: 201047587
Bug: 201771367
Signed-off-by: Woody Lin <woodylin@google.com>
Change-Id: I752da99d92c28a33b8cb2605ff8c2fdf9eb33042
---
 arch/alpha/kernel/smp.c          | 1 -
 arch/arc/kernel/smp.c            | 1 -
 arch/arm/kernel/smp.c            | 1 -
 arch/arm64/include/asm/preempt.h | 2 +-
 arch/arm64/kernel/smp.c          | 1 -
 arch/csky/kernel/smp.c           | 1 -
 arch/ia64/kernel/smpboot.c       | 1 -
 arch/mips/kernel/smp.c           | 1 -
 arch/openrisc/kernel/smp.c       | 2 --
 arch/parisc/kernel/smp.c         | 1 -
 arch/powerpc/kernel/smp.c        | 1 -
 arch/riscv/kernel/smpboot.c      | 1 -
 arch/s390/include/asm/preempt.h  | 4 ++--
 arch/s390/kernel/smp.c           | 1 -
 arch/sh/kernel/smp.c             | 2 --
 arch/sparc/kernel/smp_32.c       | 1 -
 arch/sparc/kernel/smp_64.c       | 3 ---
 arch/x86/include/asm/preempt.h   | 2 +-
 arch/x86/kernel/smpboot.c        | 1 -
 arch/xtensa/kernel/smp.c         | 1 -
 include/asm-generic/preempt.h    | 2 +-
 init/main.c                      | 6 +-----
 kernel/fork.c                    | 2 +-
 kernel/sched/core.c              | 2 +-
 kernel/smpboot.c                 | 1 -
 25 files changed, 8 insertions(+), 34 deletions(-)

diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index f3a58c1fdd55e..cb64e4797d2a8 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -166,7 +166,6 @@ smp_callin(void)
 	DBGS(("smp_callin: commencing CPU %d current %p active_mm %p\n",
 	      cpuid, current, current->active_mm));
 
-	preempt_disable();
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
 }
 
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 52906d3145371..db0e104d68355 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -189,7 +189,6 @@ void start_kernel_secondary(void)
 	pr_info("## CPU%u LIVE ##: Executing Code...\n", cpu);
 
 	local_irq_enable();
-	preempt_disable();
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
 }
 
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index ba27e184402a7..123432bb500ed 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -436,7 +436,6 @@ asmlinkage void secondary_start_kernel(void)
 #endif
 	pr_debug("CPU%u: Booted secondary processor\n", cpu);
 
-	preempt_disable();
 	trace_hardirqs_off();
 
 	/*
diff --git a/arch/arm64/include/asm/preempt.h b/arch/arm64/include/asm/preempt.h
index 80e946b2abee2..e83f0982b99c1 100644
--- a/arch/arm64/include/asm/preempt.h
+++ b/arch/arm64/include/asm/preempt.h
@@ -23,7 +23,7 @@ static inline void preempt_count_set(u64 pc)
 } while (0)
 
 #define init_idle_preempt_count(p, cpu) do { \
-	task_thread_info(p)->preempt_count = PREEMPT_ENABLED; \
+	task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
 } while (0)
 
 static inline void set_preempt_need_resched(void)
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 1bcf403a8e673..92a1bbb9f3196 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -232,7 +232,6 @@ asmlinkage notrace void secondary_start_kernel(void)
 		init_gic_priority_masking();
 
 	rcu_cpu_starting(cpu);
-	preempt_disable();
 	trace_hardirqs_off();
 
 	/*
diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index 041d0de6a1b67..1a8d7eaf1ff71 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c
@@ -282,7 +282,6 @@ void csky_start_secondary(void)
 	pr_info("CPU%u Online: %s...\n", cpu, __func__);
 
 	local_irq_enable();
-	preempt_disable();
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
 }
 
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c
index 093040f7e626a..0cad990385c04 100644
--- a/arch/ia64/kernel/smpboot.c
+++ b/arch/ia64/kernel/smpboot.c
@@ -440,7 +440,6 @@ start_secondary (void *unused)
 #endif
 	efi_map_pal_code();
 	cpu_init();
-	preempt_disable();
 	smp_callin();
 
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 48d84d5fcc361..ff25926c5458c 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -348,7 +348,6 @@ asmlinkage void start_secondary(void)
 	 */
 
 	calibrate_delay();
-	preempt_disable();
 	cpu = smp_processor_id();
 	cpu_data[cpu].udelay_val = loops_per_jiffy;
 
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
index 29c82ef2e207c..e4dad76066aed 100644
--- a/arch/openrisc/kernel/smp.c
+++ b/arch/openrisc/kernel/smp.c
@@ -134,8 +134,6 @@ asmlinkage __init void secondary_start_kernel(void)
 	set_cpu_online(cpu, true);
 
 	local_irq_enable();
-
-	preempt_disable();
 	/*
 	 * OK, it's off to the idle thread for us
 	 */
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 10227f667c8a6..1405b603b91b6 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -302,7 +302,6 @@ void __init smp_callin(unsigned long pdce_proc)
 #endif
 
 	smp_cpu_init(slave_id);
-	preempt_disable();
 
 	flush_cache_all_local(); /* start with known state */
 	flush_tlb_all_local(NULL);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index aa0a35ebc04ab..91f274134884e 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1436,7 +1436,6 @@ void start_secondary(void *unused)
 	smp_store_cpu_info(cpu);
 	set_dec(tb_ticks_per_jiffy);
 	rcu_cpu_starting(cpu);
-	preempt_disable();
 	cpu_callin_map[cpu] = 1;
 
 	if (smp_ops->setup_cpu)
diff --git a/arch/riscv/kernel/smpboot.c b/arch/riscv/kernel/smpboot.c
index 96167d55ed984..0b04e0eae3ab5 100644
--- a/arch/riscv/kernel/smpboot.c
+++ b/arch/riscv/kernel/smpboot.c
@@ -166,7 +166,6 @@ asmlinkage __visible void smp_callin(void)
 	 * Disable preemption before enabling interrupts, so we don't try to
 	 * schedule a CPU that hasn't actually started yet.
 	 */
-	preempt_disable();
 	local_irq_enable();
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
 }
diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h
index 6ede29907fbf7..e38480eb58faa 100644
--- a/arch/s390/include/asm/preempt.h
+++ b/arch/s390/include/asm/preempt.h
@@ -32,7 +32,7 @@ static inline void preempt_count_set(int pc)
 #define init_task_preempt_count(p)	do { } while (0)
 
 #define init_idle_preempt_count(p, cpu)	do { \
-	S390_lowcore.preempt_count = PREEMPT_ENABLED; \
+	S390_lowcore.preempt_count = PREEMPT_DISABLED; \
 } while (0)
 
 static inline void set_preempt_need_resched(void)
@@ -91,7 +91,7 @@ static inline void preempt_count_set(int pc)
 #define init_task_preempt_count(p)	do { } while (0)
 
 #define init_idle_preempt_count(p, cpu)	do { \
-	S390_lowcore.preempt_count = PREEMPT_ENABLED; \
+	S390_lowcore.preempt_count = PREEMPT_DISABLED; \
 } while (0)
 
 static inline void set_preempt_need_resched(void)
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 791bc373418bd..7db5460553b7d 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -863,7 +863,6 @@ static void smp_init_secondary(void)
 	set_cpu_flag(CIF_ASCE_SECONDARY);
 	cpu_init();
 	rcu_cpu_starting(cpu);
-	preempt_disable();
 	init_cpu_timer();
 	vtime_init();
 	pfault_init();
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 372acdc9033eb..65924d9ec2459 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -186,8 +186,6 @@ asmlinkage void start_secondary(void)
 
 	per_cpu_trap_init();
 
-	preempt_disable();
-
 	notify_cpu_starting(cpu);
 
 	local_irq_enable();
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index 50c127ab46d5b..22b148e5a5f88 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -348,7 +348,6 @@ static void sparc_start_secondary(void *arg)
 	 */
 	arch_cpu_pre_starting(arg);
 
-	preempt_disable();
 	cpu = smp_processor_id();
 
 	notify_cpu_starting(cpu);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index e38d8bf454e86..ae5faa1d989d2 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -138,9 +138,6 @@ void smp_callin(void)
 
 	set_cpu_online(cpuid, true);
 
-	/* idle thread is expected to have preempt disabled */
-	preempt_disable();
-
 	local_irq_enable();
 
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index 69485ca13665f..a334dd0d7c42c 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -43,7 +43,7 @@ static __always_inline void preempt_count_set(int pc)
 #define init_task_preempt_count(p) do { } while (0)
 
 #define init_idle_preempt_count(p, cpu) do { \
-	per_cpu(__preempt_count, (cpu)) = PREEMPT_ENABLED; \
+	per_cpu(__preempt_count, (cpu)) = PREEMPT_DISABLED; \
 } while (0)
 
 /*
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 582387fc939f4..8baff500914ea 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -230,7 +230,6 @@ static void notrace start_secondary(void *unused)
 	cpu_init_exception_handling();
 	cpu_init();
 	x86_cpuinit.early_percpu_clock_init();
-	preempt_disable();
 	smp_callin();
 
 	enable_start_cpu0 = 0;
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index cd85a7a2722ba..1254da07ead1f 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -145,7 +145,6 @@ void secondary_start_kernel(void)
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 	enter_lazy_tlb(mm, current);
 
-	preempt_disable();
 	trace_hardirqs_off();
 
 	calibrate_delay();
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index d683f5e6d7913..b4d43a4af5f79 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -29,7 +29,7 @@ static __always_inline void preempt_count_set(int pc)
 } while (0)
 
 #define init_idle_preempt_count(p, cpu) do { \
-	task_thread_info(p)->preempt_count = PREEMPT_ENABLED; \
+	task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
 } while (0)
 
 static __always_inline void set_preempt_need_resched(void)
diff --git a/init/main.c b/init/main.c
index 9934624dbe083..c5f7de7df91a2 100644
--- a/init/main.c
+++ b/init/main.c
@@ -908,11 +908,7 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
 	 * time - but meanwhile we still have a functioning scheduler.
 	 */
 	sched_init();
-	/*
-	 * Disable preemption - early bootup scheduling is extremely
-	 * fragile until we cpu_idle() for the first time.
-	 */
-	preempt_disable();
+
 	if (WARN(!irqs_disabled(),
 		 "Interrupts were enabled *very* early, fixing it\n"))
 		local_irq_disable();
diff --git a/kernel/fork.c b/kernel/fork.c
index ec8c47c7664e0..16018dc846382 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2434,7 +2434,7 @@ static inline void init_idle_pids(struct task_struct *idle)
 	}
 }
 
-struct task_struct *fork_idle(int cpu)
+struct task_struct * __init fork_idle(int cpu)
 {
 	struct task_struct *task;
 	struct kernel_clone_args args = {
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 891f85bb815b1..34a69dd29a43e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6743,7 +6743,7 @@ void show_state_filter(unsigned long state_filter)
  * NOTE: this function does not set the idle thread's NEED_RESCHED
  * flag, to make booting more robust.
  */
-void init_idle(struct task_struct *idle, int cpu)
+void __init init_idle(struct task_struct *idle, int cpu)
 {
 	struct rq *rq = cpu_rq(cpu);
 	unsigned long flags;
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index f25208e8df836..e4163042c4d66 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -33,7 +33,6 @@ struct task_struct *idle_thread_get(unsigned int cpu)
 
 	if (!tsk)
 		return ERR_PTR(-ENOMEM);
-	init_idle(tsk, cpu);
 	return tsk;
 }
 
-- 
GitLab


From 1c80cd1956da86e8cb2df1af436c802ba0850fdf Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Tue, 12 Oct 2021 16:35:21 +0800
Subject: [PATCH 0414/4878] UPSTREAM: sched/scs: Reset the shadow stack when
 idle_task_exit

Commit f1a0a376ca0c ("sched/core: Initialize the idle task with
preemption disabled") removed the init_idle() call from
idle_thread_get(). This was the sole call-path on hotplug that resets
the Shadow Call Stack (scs) Stack Pointer (sp).

Not resetting the scs-sp leads to scs overflow after enough hotplug
cycles. Therefore add an explicit scs_task_reset() to the hotplug code
to make sure the scs-sp does get reset on hotplug.

Fixes: f1a0a376ca0c ("sched/core: Initialize the idle task with preemption disabled")
Signed-off-by: Woody Lin <woodylin@google.com>
[peterz: Changelog]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lore.kernel.org/r/20211012083521.973587-1-woodylin@google.com
(cherry picked from commit 63acd42c0d4942f74710b11c38602fb14dea7320)
Bug: 201047587
Bug: 201771367
Change-Id: I9e48270f8d4c698c140cc3f427cadae636acb6d7
---
 kernel/sched/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 34a69dd29a43e..3db86fd60c11d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6915,6 +6915,7 @@ void idle_task_exit(void)
 		finish_arch_post_lock_switch();
 	}
 
+	scs_task_reset(current);
 	/* finish_cpu(), as ran on the BP, will clean up the active_mm state */
 }
 
-- 
GitLab


From b14adc19004d752a3646651d5825f4d4a3c609da Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Tue, 26 Oct 2021 09:58:22 +0800
Subject: [PATCH 0415/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 196974386
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: I406d95e8fc06cfb6294e5cbbed59a7596e0bb0b6
---
 android/abi_gki_aarch64_generic | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index b13fd3adbc8dd..cb7c91208f588 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -138,6 +138,7 @@
   cfg80211_rx_mgmt_khz
   cfg80211_scan_done
   cfg80211_sched_scan_results
+  cfg80211_sched_scan_stopped
   cfg80211_sched_scan_stopped_rtnl
   __cfg80211_send_event_skb
   cfg80211_unlink_bss
@@ -359,12 +360,15 @@
   devm_clk_hw_register
   devm_clk_hw_register_clkdev
   devm_clk_put
+  devm_device_add_group
   devm_device_add_groups
+  devm_device_remove_group
   __devm_drm_dev_alloc
   devm_drm_panel_bridge_add_typed
   devm_extcon_dev_allocate
   devm_extcon_dev_register
   devm_free_irq
+  devm_fwnode_pwm_get
   devm_gen_pool_create
   devm_gpiochip_add_data_with_key
   devm_gpiod_get
@@ -388,6 +392,7 @@
   devm_kmemdup
   devm_kstrdup
   devm_kstrdup_const
+  devm_led_classdev_register_ext
   devm_mfd_add_devices
   devm_nvmem_register
   devm_of_clk_add_hw_provider
@@ -403,6 +408,7 @@
   devm_platform_ioremap_resource
   devm_platform_ioremap_resource_byname
   devm_power_supply_register
+  devm_pwm_get
   devm_regmap_add_irq_chip
   __devm_regmap_init
   __devm_regmap_init_i2c
@@ -440,6 +446,7 @@
   dev_pm_opp_set_regulators
   dev_pm_qos_read_value
   dev_pm_qos_update_request
+  dev_printk
   dev_printk_emit
   dev_queue_xmit
   devres_add
@@ -775,6 +782,9 @@
   full_name_hash
   fwnode_get_name
   fwnode_gpiod_get_index
+  fwnode_handle_put
+  fwnode_property_present
+  fwnode_property_read_string
   fwnode_property_read_u32_array
   gcd
   generic_file_llseek
@@ -801,6 +811,7 @@
   get_governor_parent_kobj
   get_pid_task
   get_random_bytes
+  get_random_bytes_arch
   get_random_u32
   get_sg_io_hdr
   __get_task_comm
@@ -852,6 +863,12 @@
   hex2bin
   hex_dump_to_buffer
   hex_to_bin
+  hid_add_device
+  hid_allocate_device
+  hid_debug
+  hid_destroy_device
+  hid_input_report
+  hid_parse_report
   hrtimer_active
   hrtimer_cancel
   hrtimer_forward
@@ -875,6 +892,7 @@
   i2c_new_dummy_device
   i2c_put_adapter
   i2c_register_driver
+  i2c_smbus_read_byte
   i2c_smbus_read_byte_data
   i2c_smbus_write_byte_data
   i2c_smbus_xfer
@@ -1167,11 +1185,13 @@
   netlink_kernel_release
   netlink_unicast
   net_ratelimit
+  nla_append
   nla_memcpy
   __nla_parse
   nla_put
   nla_put_64bit
   nla_put_nohdr
+  nla_reserve
   nla_strlcpy
   __nlmsg_put
   no_llseek
@@ -1253,6 +1273,7 @@
   of_property_read_variable_u8_array
   of_prop_next_string
   of_prop_next_u32
+  of_pwm_xlate_with_flags
   of_reserved_mem_device_init_by_idx
   of_reserved_mem_device_release
   of_reserved_mem_lookup
@@ -1394,6 +1415,7 @@
   power_supply_set_property
   power_supply_unregister
   power_supply_unreg_notifier
+  prandom_bytes
   prandom_u32
   preempt_schedule
   preempt_schedule_notrace
@@ -1421,6 +1443,11 @@
   __put_task_struct
   put_unused_fd
   put_vaddr_frames
+  pwm_apply_state
+  pwmchip_add
+  pwmchip_remove
+  pwm_get_chip_data
+  pwm_set_chip_data
   queue_delayed_work_on
   queue_work_on
   ___ratelimit
@@ -1520,6 +1547,7 @@
   regulator_set_voltage_sel_regmap
   regulator_unregister
   regulatory_hint
+  regulatory_set_wiphy_regd_sync_rtnl
   release_firmware
   __release_region
   remap_pfn_range
@@ -2227,6 +2255,7 @@
   wakeup_source_create
   wakeup_source_destroy
   wakeup_source_register
+  wakeup_source_remove
   wakeup_source_unregister
   __wake_up_sync
   __warn_printk
-- 
GitLab


From ca5822a433a81af7cad3af47edeb3e3183642c5d Mon Sep 17 00:00:00 2001
From: Alex Hong <rurumihong@google.com>
Date: Tue, 26 Oct 2021 23:06:40 +0800
Subject: [PATCH 0416/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 199698959
Signed-off-by: Alex Hong <rurumihong@google.com>
Change-Id: I2a7f132983276c55641cefa6754de63ed7f58403
---
 android/abi_gki_aarch64_generic | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index cb7c91208f588..99dd29ded6434 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -87,6 +87,7 @@
   blocking_notifier_chain_unregister
   bpf_trace_run1
   bpf_trace_run10
+  bpf_trace_run11
   bpf_trace_run12
   bpf_trace_run2
   bpf_trace_run3
@@ -1579,6 +1580,7 @@
   rtc_valid_tm
   __rt_mutex_init
   rt_mutex_lock
+  rt_mutex_trylock
   rt_mutex_unlock
   rtnl_is_locked
   rtnl_lock
@@ -1928,6 +1930,7 @@
   __traceiter_android_vh_rmqueue
   __traceiter_android_vh_setscheduler_uclamp
   __traceiter_android_vh_snd_compr_use_pause_in_drain
+  __traceiter_android_vh_sound_usb_support_cpu_suspend
   __traceiter_android_vh_sysrq_crash
   __traceiter_android_vh_thermal_pm_notify_suspend
   __traceiter_android_vh_timerfd_create
@@ -1943,6 +1946,8 @@
   __traceiter_android_vh_ufs_send_tm_command
   __traceiter_android_vh_ufs_send_uic_command
   __traceiter_android_vh_ufs_update_sysfs
+  __traceiter_android_vh_usb_dev_resume
+  __traceiter_android_vh_usb_dev_suspend
   __traceiter_clock_set_rate
   __traceiter_cpu_frequency
   __traceiter_device_pm_callback_end
@@ -2007,6 +2012,7 @@
   __tracepoint_android_vh_rmqueue
   __tracepoint_android_vh_setscheduler_uclamp
   __tracepoint_android_vh_snd_compr_use_pause_in_drain
+  __tracepoint_android_vh_sound_usb_support_cpu_suspend
   __tracepoint_android_vh_sysrq_crash
   __tracepoint_android_vh_thermal_pm_notify_suspend
   __tracepoint_android_vh_timerfd_create
@@ -2022,6 +2028,8 @@
   __tracepoint_android_vh_ufs_send_tm_command
   __tracepoint_android_vh_ufs_send_uic_command
   __tracepoint_android_vh_ufs_update_sysfs
+  __tracepoint_android_vh_usb_dev_resume
+  __tracepoint_android_vh_usb_dev_suspend
   __tracepoint_clock_set_rate
   __tracepoint_cpu_frequency
   __tracepoint_device_pm_callback_end
-- 
GitLab


From b3b7f831a49b56c258ab8ef08d04045fcfb9b4a7 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 1 Sep 2021 22:18:18 +0200
Subject: [PATCH 0417/4878] parisc: math-emu: Fix fall-through warnings

commit 6f1fce595b78b775d7fb585c15c2dc3a6994f96e upstream.

Fix lots of fallthrough warnings, e.g.:
arch/parisc/math-emu/fpudispatch.c:323:33: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/math-emu/fpudispatch.c | 56 ++++++++++++++++++++++++++++--
 1 file changed, 53 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/math-emu/fpudispatch.c b/arch/parisc/math-emu/fpudispatch.c
index 7c46969ead9b1..01ed133227c25 100644
--- a/arch/parisc/math-emu/fpudispatch.c
+++ b/arch/parisc/math-emu/fpudispatch.c
@@ -310,12 +310,15 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					r1 &= ~3;
 					fpregs[t+3] = fpregs[r1+3];
 					fpregs[t+2] = fpregs[r1+2];
+					fallthrough;
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					fpregs[t] = fpregs[r1];
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 3: /* FABS */
 				switch (fmt) {
 				    case 2: /* illegal */
@@ -325,13 +328,16 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					r1 &= ~3;
 					fpregs[t+3] = fpregs[r1+3];
 					fpregs[t+2] = fpregs[r1+2];
+					fallthrough;
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					/* copy and clear sign bit */
 					fpregs[t] = fpregs[r1] & 0x7fffffff;
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 6: /* FNEG */
 				switch (fmt) {
 				    case 2: /* illegal */
@@ -341,13 +347,16 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					r1 &= ~3;
 					fpregs[t+3] = fpregs[r1+3];
 					fpregs[t+2] = fpregs[r1+2];
+					fallthrough;
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					/* copy and invert sign bit */
 					fpregs[t] = fpregs[r1] ^ 0x80000000;
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 7: /* FNEGABS */
 				switch (fmt) {
 				    case 2: /* illegal */
@@ -357,13 +366,16 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					r1 &= ~3;
 					fpregs[t+3] = fpregs[r1+3];
 					fpregs[t+2] = fpregs[r1+2];
+					fallthrough;
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					/* copy and set sign bit */
 					fpregs[t] = fpregs[r1] | 0x80000000;
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 4: /* FSQRT */
 				switch (fmt) {
 				    case 0:
@@ -376,6 +388,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 5: /* FRND */
 				switch (fmt) {
 				    case 0:
@@ -389,7 +402,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(MAJOR_0C_EXCP);
 				}
 		} /* end of switch (subop) */
-
+		BUG();
 	case 1: /* class 1 */
 		df = extru(ir,fpdfpos,2); /* get dest format */
 		if ((df & 2) || (fmt & 2)) {
@@ -419,6 +432,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* dbl/dbl */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 1: /* FCNVXF */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -434,6 +448,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(dbl_to_dbl_fcnvxf(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 2: /* FCNVFX */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -449,6 +464,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(dbl_to_dbl_fcnvfx(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 3: /* FCNVFXT */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -464,6 +480,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(dbl_to_dbl_fcnvfxt(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 5: /* FCNVUF (PA2.0 only) */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -479,6 +496,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(dbl_to_dbl_fcnvuf(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 6: /* FCNVFU (PA2.0 only) */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -494,6 +512,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(dbl_to_dbl_fcnvfu(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 7: /* FCNVFUT (PA2.0 only) */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -509,10 +528,11 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 					return(dbl_to_dbl_fcnvfut(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 4: /* undefined */
 				return(MAJOR_0C_EXCP);
 		} /* end of switch subop */
-
+		BUG();
 	case 2: /* class 2 */
 		fpu_type_flags=fpregs[FPU_TYPE_FLAG_POS];
 		r2 = extru(ir, fpr2pos, 5) * sizeof(double)/sizeof(u_int);
@@ -590,6 +610,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 1: /* FTEST */
 				switch (fmt) {
 				    case 0:
@@ -609,8 +630,10 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3:
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 		    } /* end of switch subop */
 		} /* end of else for PA1.0 & PA1.1 */
+		BUG();
 	case 3: /* class 3 */
 		r2 = extru(ir,fpr2pos,5) * sizeof(double)/sizeof(u_int);
 		if (r2 == 0)
@@ -633,6 +656,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 1: /* FSUB */
 				switch (fmt) {
 				    case 0:
@@ -645,6 +669,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 2: /* FMPY */
 				switch (fmt) {
 				    case 0:
@@ -657,6 +682,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 3: /* FDIV */
 				switch (fmt) {
 				    case 0:
@@ -669,6 +695,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 			case 4: /* FREM */
 				switch (fmt) {
 				    case 0:
@@ -681,6 +708,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
 				    case 3: /* quad not implemented */
 					return(MAJOR_0C_EXCP);
 				}
+				BUG();
 		} /* end of class 3 switch */
 	} /* end of switch(class) */
 
@@ -736,10 +764,12 @@ u_int fpregs[];
 					return(MAJOR_0E_EXCP);
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					fpregs[t] = fpregs[r1];
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 3: /* FABS */
 				switch (fmt) {
 				    case 2:
@@ -747,10 +777,12 @@ u_int fpregs[];
 					return(MAJOR_0E_EXCP);
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					fpregs[t] = fpregs[r1] & 0x7fffffff;
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 6: /* FNEG */
 				switch (fmt) {
 				    case 2:
@@ -758,10 +790,12 @@ u_int fpregs[];
 					return(MAJOR_0E_EXCP);
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					fpregs[t] = fpregs[r1] ^ 0x80000000;
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 7: /* FNEGABS */
 				switch (fmt) {
 				    case 2:
@@ -769,10 +803,12 @@ u_int fpregs[];
 					return(MAJOR_0E_EXCP);
 				    case 1: /* double */
 					fpregs[t+1] = fpregs[r1+1];
+					fallthrough;
 				    case 0: /* single */
 					fpregs[t] = fpregs[r1] | 0x80000000;
 					return(NOEXCEPTION);
 				}
+				BUG();
 			case 4: /* FSQRT */
 				switch (fmt) {
 				    case 0:
@@ -785,6 +821,7 @@ u_int fpregs[];
 				    case 3:
 					return(MAJOR_0E_EXCP);
 				}
+				BUG();
 			case 5: /* FRMD */
 				switch (fmt) {
 				    case 0:
@@ -798,7 +835,7 @@ u_int fpregs[];
 					return(MAJOR_0E_EXCP);
 				}
 		} /* end of switch (subop */
-	
+		BUG();
 	case 1: /* class 1 */
 		df = extru(ir,fpdfpos,2); /* get dest format */
 		/*
@@ -826,6 +863,7 @@ u_int fpregs[];
 				    case 3: /* dbl/dbl */
 					return(MAJOR_0E_EXCP);
 				}
+				BUG();
 			case 1: /* FCNVXF */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -841,6 +879,7 @@ u_int fpregs[];
 					return(dbl_to_dbl_fcnvxf(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 2: /* FCNVFX */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -856,6 +895,7 @@ u_int fpregs[];
 					return(dbl_to_dbl_fcnvfx(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 3: /* FCNVFXT */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -871,6 +911,7 @@ u_int fpregs[];
 					return(dbl_to_dbl_fcnvfxt(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 5: /* FCNVUF (PA2.0 only) */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -886,6 +927,7 @@ u_int fpregs[];
 					return(dbl_to_dbl_fcnvuf(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 6: /* FCNVFU (PA2.0 only) */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -901,6 +943,7 @@ u_int fpregs[];
 					return(dbl_to_dbl_fcnvfu(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 7: /* FCNVFUT (PA2.0 only) */
 				switch(fmt) {
 				    case 0: /* sgl/sgl */
@@ -916,9 +959,11 @@ u_int fpregs[];
 					return(dbl_to_dbl_fcnvfut(&fpregs[r1],0,
 						&fpregs[t],status));
 				}
+				BUG();
 			case 4: /* undefined */
 				return(MAJOR_0C_EXCP);
 		} /* end of switch subop */
+		BUG();
 	case 2: /* class 2 */
 		/*
 		 * Be careful out there.
@@ -994,6 +1039,7 @@ u_int fpregs[];
 				}
 		    } /* end of switch subop */
 		} /* end of else for PA1.0 & PA1.1 */
+		BUG();
 	case 3: /* class 3 */
 		/*
 		 * Be careful out there.
@@ -1026,6 +1072,7 @@ u_int fpregs[];
 					return(dbl_fadd(&fpregs[r1],&fpregs[r2],
 						&fpregs[t],status));
 				}
+				BUG();
 			case 1: /* FSUB */
 				switch (fmt) {
 				    case 0:
@@ -1035,6 +1082,7 @@ u_int fpregs[];
 					return(dbl_fsub(&fpregs[r1],&fpregs[r2],
 						&fpregs[t],status));
 				}
+				BUG();
 			case 2: /* FMPY or XMPYU */
 				/*
 				 * check for integer multiply (x bit set)
@@ -1071,6 +1119,7 @@ u_int fpregs[];
 					       &fpregs[r2],&fpregs[t],status));
 				    }
 				}
+				BUG();
 			case 3: /* FDIV */
 				switch (fmt) {
 				    case 0:
@@ -1080,6 +1129,7 @@ u_int fpregs[];
 					return(dbl_fdiv(&fpregs[r1],&fpregs[r2],
 						&fpregs[t],status));
 				}
+				BUG();
 			case 4: /* FREM */
 				switch (fmt) {
 				    case 0:
-- 
GitLab


From b6f32897af190d4716412e156ee0abcc16e4f1e5 Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.org>
Date: Fri, 8 Oct 2021 12:25:44 +0300
Subject: [PATCH 0418/4878] xhci: add quirk for host controllers that don't
 update endpoint DCS
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 5255660b208aebfdb71d574f3952cf48392f4306 upstream.

Seen on a VLI VL805 PCIe to USB controller. For non-stream endpoints
at least, if the xHC halts on a particular TRB due to an error then
the DCS field in the Out Endpoint Context maintained by the hardware
is not updated with the current cycle state.

Using the quirk XHCI_EP_CTX_BROKEN_DCS and instead fetch the DCS bit
from the TRB that the xHC stopped on.

[ bjorn: rebased to v5.14-rc2 ]

Link: https://github.com/raspberrypi/linux/issues/3060
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211008092547.3996295-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c  |  4 +++-
 drivers/usb/host/xhci-ring.c | 26 +++++++++++++++++++++++++-
 drivers/usb/host/xhci.h      |  1 +
 3 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 2299866dc82ff..8c65e9476b41f 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -276,8 +276,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 			pdev->device == 0x3432)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 
-	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
+	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
+		xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
+	}
 
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index ec8f2910faf97..4512c4223392a 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -562,7 +562,10 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
 	struct xhci_virt_ep *ep = &dev->eps[ep_index];
 	struct xhci_ring *ep_ring;
 	struct xhci_segment *new_seg;
+	struct xhci_segment *halted_seg = NULL;
 	union xhci_trb *new_deq;
+	union xhci_trb *halted_trb;
+	int index = 0;
 	dma_addr_t addr;
 	u64 hw_dequeue;
 	bool cycle_found = false;
@@ -600,7 +603,28 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
 	hw_dequeue = xhci_get_hw_deq(xhci, dev, ep_index, stream_id);
 	new_seg = ep_ring->deq_seg;
 	new_deq = ep_ring->dequeue;
-	state->new_cycle_state = hw_dequeue & 0x1;
+
+	/*
+	 * Quirk: xHC write-back of the DCS field in the hardware dequeue
+	 * pointer is wrong - use the cycle state of the TRB pointed to by
+	 * the dequeue pointer.
+	 */
+	if (xhci->quirks & XHCI_EP_CTX_BROKEN_DCS &&
+	    !(ep->ep_state & EP_HAS_STREAMS))
+		halted_seg = trb_in_td(xhci, cur_td->start_seg,
+				       cur_td->first_trb, cur_td->last_trb,
+				       hw_dequeue & ~0xf, false);
+	if (halted_seg) {
+		index = ((dma_addr_t)(hw_dequeue & ~0xf) - halted_seg->dma) /
+			 sizeof(*halted_trb);
+		halted_trb = &halted_seg->trbs[index];
+		state->new_cycle_state = halted_trb->generic.field[3] & 0x1;
+		xhci_dbg(xhci, "Endpoint DCS = %d TRB index = %d cycle = %d\n",
+			 (u8)(hw_dequeue & 0x1), index,
+			 state->new_cycle_state);
+	} else {
+		state->new_cycle_state = hw_dequeue & 0x1;
+	}
 	state->stream_id = stream_id;
 
 	/*
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 1c97c8d81154d..45584a2783366 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1884,6 +1884,7 @@ struct xhci_hcd {
 #define XHCI_DISABLE_SPARSE	BIT_ULL(38)
 #define XHCI_SG_TRB_CACHE_SIZE_QUIRK	BIT_ULL(39)
 #define XHCI_NO_SOFT_RETRY	BIT_ULL(40)
+#define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(42)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
-- 
GitLab


From f59da9f7efa73a31b6287bd9b8f03a8d536e524f Mon Sep 17 00:00:00 2001
From: Kamal Mostafa <kamal@canonical.com>
Date: Mon, 18 Oct 2021 10:18:08 -0700
Subject: [PATCH 0419/4878] io_uring: fix splice_fd_in checks backport typo

The linux-5.10.y backport of commit "io_uring: add ->splice_fd_in checks"
includes a typo: "|" where "||" should be. (The original upstream commit
is fine.)

Fixes: 54eb6211b979 ("io_uring: add ->splice_fd_in checks")
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org # v5.10
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/io_uring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 26753d0cb4312..0736487165da4 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5559,7 +5559,7 @@ static int io_timeout_remove_prep(struct io_kiocb *req,
 		return -EINVAL;
 	if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
 		return -EINVAL;
-	if (sqe->ioprio || sqe->buf_index || sqe->len || sqe->timeout_flags |
+	if (sqe->ioprio || sqe->buf_index || sqe->len || sqe->timeout_flags ||
 	    sqe->splice_fd_in)
 		return -EINVAL;
 
-- 
GitLab


From 5489c1bed5b86c07a8fafc2d6dad89e902b70c69 Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Thu, 19 Aug 2021 13:42:38 -0500
Subject: [PATCH 0420/4878] arm: dts: vexpress-v2p-ca9: Fix the SMB
 unit-address

[ Upstream commit 2e9edc07df2ec6f835222151fa4e536e9e54856a ]

Based on 'ranges', the 'bus@4000000' node unit-address is off by 1 '0'.

Link: https://lore.kernel.org/r/20210819184239.1192395-5-robh@kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/vexpress-v2m.dtsi    | 2 +-
 arch/arm/boot/dts/vexpress-v2p-ca9.dts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/vexpress-v2m.dtsi b/arch/arm/boot/dts/vexpress-v2m.dtsi
index 2ac41ed3a57c7..659dcf4004b47 100644
--- a/arch/arm/boot/dts/vexpress-v2m.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m.dtsi
@@ -19,7 +19,7 @@
  */
 
 / {
-	bus@4000000 {
+	bus@40000000 {
 		motherboard {
 			model = "V2M-P1";
 			arm,hbi = <0x190>;
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca9.dts b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
index 4c58479558562..1317f0f58d53d 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca9.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
@@ -295,7 +295,7 @@
 		};
 	};
 
-	smb: bus@4000000 {
+	smb: bus@40000000 {
 		compatible = "simple-bus";
 
 		#address-cells = <2>;
-- 
GitLab


From 85c1827eeee7fa8998fd57ec48b74fcc9ae9cf40 Mon Sep 17 00:00:00 2001
From: Eugen Hristev <eugen.hristev@microchip.com>
Date: Thu, 2 Sep 2021 15:13:58 +0300
Subject: [PATCH 0421/4878] ARM: dts: at91: sama5d2_som1_ek: disable ISC node
 by default

[ Upstream commit 4348cc10da6377a86940beb20ad357933b8f91bb ]

Without a sensor node, the ISC will simply fail to probe, as the
corresponding port node is missing.
It is then logical to disable the node in the devicetree.
If we add a port with a connection to a sensor endpoint, ISC can be enabled.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20210902121358.503589-1-eugen.hristev@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/at91-sama5d27_som1_ek.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
index 9a18453d78428..0a53f21a89032 100644
--- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -71,7 +71,6 @@
 			isc: isc@f0008000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>;
-				status = "okay";
 			};
 
 			qspi1: spi@f0024000 {
-- 
GitLab


From a6285b1b2212ac6f9af30980ed3def7a5b37680e Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Date: Mon, 4 Oct 2021 16:22:07 +0900
Subject: [PATCH 0422/4878] block: decode QUEUE_FLAG_HCTX_ACTIVE in debugfs
 output

[ Upstream commit 1dbdd99b511c966be9147ad72991a2856ac76f22 ]

While debugging an issue we've found that $DEBUGFS/block/$disk/state
doesn't decode QUEUE_FLAG_HCTX_ACTIVE but only displays its numerical
value.

Add QUEUE_FLAG(HCTX_ACTIVE) to the blk_queue_flag_name array so it'll get
decoded properly.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/4351076388918075bd80ef07756f9d2ce63be12c.1633332053.git.johannes.thumshirn@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-mq-debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 4de03da9a624b..b5f26082b9594 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -129,6 +129,7 @@ static const char *const blk_queue_flag_name[] = {
 	QUEUE_FLAG_NAME(PCI_P2PDMA),
 	QUEUE_FLAG_NAME(ZONE_RESETALL),
 	QUEUE_FLAG_NAME(RQ_ALLOC_TIME),
+	QUEUE_FLAG_NAME(HCTX_ACTIVE),
 	QUEUE_FLAG_NAME(NOWAIT),
 };
 #undef QUEUE_FLAG_NAME
-- 
GitLab


From 101e1bcb114743033f0df86adcaa9b8571f93a06 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@suse.com>
Date: Thu, 30 Sep 2021 14:16:15 +0200
Subject: [PATCH 0423/4878] xen/x86: prevent PVH type from getting clobbered

[ Upstream commit 9172b5c4a778da1f855b2e3780b1afabb3cfd523 ]

Like xen_start_flags, xen_domain_type gets set before .bss gets cleared.
Hence this variable also needs to be prevented from getting put in .bss,
which is possible because XEN_NATIVE is an enumerator evaluating to
zero. Any use prior to init_hvm_pv_info() setting the variable again
would lead to wrong decisions; one such case is xenboot_console_setup()
when called as a result of "earlyprintk=xen".

Use __ro_after_init as more applicable than either __section(".data") or
__read_mostly.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>

Link: https://lore.kernel.org/r/d301677b-6f22-5ae6-bd36-458e1f323d0b@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/xen/enlighten.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index aa9f50fccc5da..0f68c6da7382b 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -51,9 +51,6 @@ DEFINE_PER_CPU(struct vcpu_info, xen_vcpu_info);
 DEFINE_PER_CPU(uint32_t, xen_vcpu_id);
 EXPORT_PER_CPU_SYMBOL(xen_vcpu_id);
 
-enum xen_domain_type xen_domain_type = XEN_NATIVE;
-EXPORT_SYMBOL_GPL(xen_domain_type);
-
 unsigned long *machine_to_phys_mapping = (void *)MACH2PHYS_VIRT_START;
 EXPORT_SYMBOL(machine_to_phys_mapping);
 unsigned long  machine_to_phys_nr;
@@ -68,9 +65,11 @@ __read_mostly int xen_have_vector_callback;
 EXPORT_SYMBOL_GPL(xen_have_vector_callback);
 
 /*
- * NB: needs to live in .data because it's used by xen_prepare_pvh which runs
- * before clearing the bss.
+ * NB: These need to live in .data or alike because they're used by
+ * xen_prepare_pvh() which runs before clearing the bss.
  */
+enum xen_domain_type __ro_after_init xen_domain_type = XEN_NATIVE;
+EXPORT_SYMBOL_GPL(xen_domain_type);
 uint32_t xen_start_flags __section(".data") = 0;
 EXPORT_SYMBOL(xen_start_flags);
 
-- 
GitLab


From d8284c981c1cbde04544a5bf378e25c0962d99db Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 1 Oct 2021 15:40:00 -0400
Subject: [PATCH 0424/4878] drm/amdgpu/display: fix dependencies for
 DRM_AMD_DC_SI
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 4702b34d1de9582df9dfa0e583ea28fff7de29df ]

Depends on DRM_AMDGPU_SI and DRM_AMD_DC

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/Kconfig b/drivers/gpu/drm/amd/display/Kconfig
index 3c410d236c491..f3274eb6b3418 100644
--- a/drivers/gpu/drm/amd/display/Kconfig
+++ b/drivers/gpu/drm/amd/display/Kconfig
@@ -33,6 +33,8 @@ config DRM_AMD_DC_HDCP
 
 config DRM_AMD_DC_SI
 	bool "AMD DC support for Southern Islands ASICs"
+	depends on DRM_AMDGPU_SI
+	depends on DRM_AMD_DC
 	default n
 	help
 	  Choose this option to enable new AMD DC support for SI asics
-- 
GitLab


From bfef5d826276c59898d7f13303e39f840dd4a49d Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Tue, 5 Oct 2021 11:36:01 -0700
Subject: [PATCH 0425/4878] xtensa: xtfpga: use CONFIG_USE_OF instead of
 CONFIG_OF

[ Upstream commit f3d7c2cdf6dc0d5402ec29c3673893b3542c5ad1 ]

Use platform data to initialize xtfpga device drivers when CONFIG_USE_OF
is not selected. This fixes xtfpga networking when CONFIG_USE_OF is not
selected but CONFIG_OF is.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/platforms/xtfpga/setup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index 4f7d6142d41fa..59b7f11f2a3e2 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -66,7 +66,7 @@ void __init platform_calibrate_ccount(void)
 
 #endif
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 
 static void __init xtfpga_clk_setup(struct device_node *np)
 {
@@ -284,4 +284,4 @@ static int __init xtavnet_init(void)
  */
 arch_initcall(xtavnet_init);
 
-#endif /* CONFIG_OF */
+#endif /* CONFIG_USE_OF */
-- 
GitLab


From 546c04c857912a60b0724a29315845b1e2379c90 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 1 Aug 2021 10:36:59 -0700
Subject: [PATCH 0426/4878] xtensa: xtfpga: Try software restart before
 simulating CPU reset

[ Upstream commit 012e974501a270d8dfd4ee2039e1fdf7579c907e ]

Rebooting xtensa images loaded with the '-kernel' option in qemu does
not work. When executing a reboot command, the qemu session either hangs
or experiences an endless sequence of error messages.

  Kernel panic - not syncing: Unrecoverable error in exception handler

Reset code jumps to the CPU restart address, but Linux can not recover
from there because code and data in the kernel init sections have been
discarded and overwritten at this point.

XTFPGA platforms have a means to reset the CPU by writing 0xdead into a
specific FPGA IO address. When used in QEMU the kernel image loaded with
the '-kernel' option gets restored to its original state allowing the
machine to boot successfully.

Use that mechanism to attempt a platform reset. If it does not work,
fall back to the existing mechanism.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/xtensa/platforms/xtfpga/setup.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c
index 59b7f11f2a3e2..538e6748e85a7 100644
--- a/arch/xtensa/platforms/xtfpga/setup.c
+++ b/arch/xtensa/platforms/xtfpga/setup.c
@@ -51,8 +51,12 @@ void platform_power_off(void)
 
 void platform_restart(void)
 {
-	/* Flush and reset the mmu, simulate a processor reset, and
-	 * jump to the reset vector. */
+	/* Try software reset first. */
+	WRITE_ONCE(*(u32 *)XTFPGA_SWRST_VADDR, 0xdead);
+
+	/* If software reset did not work, flush and reset the mmu,
+	 * simulate a processor reset, and jump to the reset vector.
+	 */
 	cpu_reset();
 	/* control never gets here */
 }
-- 
GitLab


From 0f4308a164a9de4ffaf86b22082dbdfa16bdc601 Mon Sep 17 00:00:00 2001
From: Benjamin Coddington <bcodding@redhat.com>
Date: Wed, 6 Oct 2021 13:20:44 -0400
Subject: [PATCH 0427/4878] NFSD: Keep existing listeners on portlist error

[ Upstream commit c20106944eb679fa3ab7e686fe5f6ba30fbc51e5 ]

If nfsd has existing listening sockets without any processes, then an error
returned from svc_create_xprt() for an additional transport will remove
those existing listeners.  We're seeing this in practice when userspace
attempts to create rpcrdma transports without having the rpcrdma modules
present before creating nfsd kernel processes.  Fix this by checking for
existing sockets before calling nfsd_destroy().

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfsd/nfsctl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index ddf2b375632b7..21c4ffda5f943 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -792,7 +792,10 @@ out_close:
 		svc_xprt_put(xprt);
 	}
 out_err:
-	nfsd_destroy(net);
+	if (!list_empty(&nn->nfsd_serv->sv_permsocks))
+		nn->nfsd_serv->sv_nrthreads--;
+	 else
+		nfsd_destroy(net);
 	return err;
 }
 
-- 
GitLab


From 2a670c323055282c9b72794a491d53cef86bbeaf Mon Sep 17 00:00:00 2001
From: Juhee Kang <claudiajkang@gmail.com>
Date: Mon, 4 Oct 2021 21:14:38 +0900
Subject: [PATCH 0428/4878] netfilter: xt_IDLETIMER: fix panic that occurs when
 timer_type has garbage value

[ Upstream commit 902c0b1887522a099aa4e1e6b4b476c2fe5dd13e ]

Currently, when the rule related to IDLETIMER is added, idletimer_tg timer
structure is initialized by kmalloc on executing idletimer_tg_create
function. However, in this process timer->timer_type is not defined to
a specific value. Thus, timer->timer_type has garbage value and it occurs
kernel panic. So, this commit fixes the panic by initializing
timer->timer_type using kzalloc instead of kmalloc.

Test commands:
    # iptables -A OUTPUT -j IDLETIMER --timeout 1 --label test
    $ cat /sys/class/xt_idletimer/timers/test
      Killed

Splat looks like:
    BUG: KASAN: user-memory-access in alarm_expires_remaining+0x49/0x70
    Read of size 8 at addr 0000002e8c7bc4c8 by task cat/917
    CPU: 12 PID: 917 Comm: cat Not tainted 5.14.0+ #3 79940a339f71eb14fc81aee1757a20d5bf13eb0e
    Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014
    Call Trace:
     dump_stack_lvl+0x6e/0x9c
     kasan_report.cold+0x112/0x117
     ? alarm_expires_remaining+0x49/0x70
     __asan_load8+0x86/0xb0
     alarm_expires_remaining+0x49/0x70
     idletimer_tg_show+0xe5/0x19b [xt_IDLETIMER 11219304af9316a21bee5ba9d58f76a6b9bccc6d]
     dev_attr_show+0x3c/0x60
     sysfs_kf_seq_show+0x11d/0x1f0
     ? device_remove_bin_file+0x20/0x20
     kernfs_seq_show+0xa4/0xb0
     seq_read_iter+0x29c/0x750
     kernfs_fop_read_iter+0x25a/0x2c0
     ? __fsnotify_parent+0x3d1/0x570
     ? iov_iter_init+0x70/0x90
     new_sync_read+0x2a7/0x3d0
     ? __x64_sys_llseek+0x230/0x230
     ? rw_verify_area+0x81/0x150
     vfs_read+0x17b/0x240
     ksys_read+0xd9/0x180
     ? vfs_write+0x460/0x460
     ? do_syscall_64+0x16/0xc0
     ? lockdep_hardirqs_on+0x79/0x120
     __x64_sys_read+0x43/0x50
     do_syscall_64+0x3b/0xc0
     entry_SYSCALL_64_after_hwframe+0x44/0xae
    RIP: 0033:0x7f0cdc819142
    Code: c0 e9 c2 fe ff ff 50 48 8d 3d 3a ca 0a 00 e8 f5 19 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
    RSP: 002b:00007fff28eee5b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
    RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f0cdc819142
    RDX: 0000000000020000 RSI: 00007f0cdc032000 RDI: 0000000000000003
    RBP: 00007f0cdc032000 R08: 00007f0cdc031010 R09: 0000000000000000
    R10: 0000000000000022 R11: 0000000000000246 R12: 00005607e9ee31f0
    R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000

Fixes: 68983a354a65 ("netfilter: xtables: Add snapshot of hardidletimer target")
Signed-off-by: Juhee Kang <claudiajkang@gmail.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/xt_IDLETIMER.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/xt_IDLETIMER.c b/net/netfilter/xt_IDLETIMER.c
index 7b2f359bfce46..2f7cf5ecebf4f 100644
--- a/net/netfilter/xt_IDLETIMER.c
+++ b/net/netfilter/xt_IDLETIMER.c
@@ -137,7 +137,7 @@ static int idletimer_tg_create(struct idletimer_tg_info *info)
 {
 	int ret;
 
-	info->timer = kmalloc(sizeof(*info->timer), GFP_KERNEL);
+	info->timer = kzalloc(sizeof(*info->timer), GFP_KERNEL);
 	if (!info->timer) {
 		ret = -ENOMEM;
 		goto out;
-- 
GitLab


From 39afed394cc62365d54b02e091668bd68c3a5299 Mon Sep 17 00:00:00 2001
From: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Date: Wed, 6 Oct 2021 22:19:43 +0200
Subject: [PATCH 0429/4878] dma-debug: fix sg checks in debug_dma_map_sg()

[ Upstream commit 293d92cbbd2418ca2ba43fed07f1b92e884d1c77 ]

The following warning occurred sporadically on s390:
DMA-API: nvme 0006:00:00.0: device driver maps memory from kernel text or rodata [addr=0000000048cc5e2f] [len=131072]
WARNING: CPU: 4 PID: 825 at kernel/dma/debug.c:1083 check_for_illegal_area+0xa8/0x138

It is a false-positive warning, due to broken logic in debug_dma_map_sg().
check_for_illegal_area() checks for overlay of sg elements with kernel text
or rodata. It is called with sg_dma_len(s) instead of s->length as
parameter. After the call to ->map_sg(), sg_dma_len() will contain the
length of possibly combined sg elements in the DMA address space, and not
the individual sg element length, which would be s->length.

The check will then use the physical start address of an sg element, and
add the DMA length for the overlap check, which could result in the false
warning, because the DMA length can be larger than the actual single sg
element length.

In addition, the call to check_for_illegal_area() happens in the iteration
over mapped_ents, which will not include all individual sg elements if
any of them were combined in ->map_sg().

Fix this by using s->length instead of sg_dma_len(s). Also put the call to
check_for_illegal_area() in a separate loop, iterating over all the
individual sg elements ("nents" instead of "mapped_ents").

While at it, as suggested by Robin Murphy, also move check_for_stack()
inside the new loop, as it is similarly concerned with validating the
individual sg elements.

Link: https://lore.kernel.org/lkml/20210705185252.4074653-1-gerald.schaefer@linux.ibm.com
Fixes: 884d05970bfb ("dma-debug: use sg_dma_len accessor")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/dma/debug.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 4457545299177..10d07ace46c15 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -1300,6 +1300,12 @@ void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 	if (unlikely(dma_debug_disabled()))
 		return;
 
+	for_each_sg(sg, s, nents, i) {
+		check_for_stack(dev, sg_page(s), s->offset);
+		if (!PageHighMem(sg_page(s)))
+			check_for_illegal_area(dev, sg_virt(s), s->length);
+	}
+
 	for_each_sg(sg, s, mapped_ents, i) {
 		entry = dma_entry_alloc();
 		if (!entry)
@@ -1315,12 +1321,6 @@ void debug_dma_map_sg(struct device *dev, struct scatterlist *sg,
 		entry->sg_call_ents   = nents;
 		entry->sg_mapped_ents = mapped_ents;
 
-		check_for_stack(dev, sg_page(s), s->offset);
-
-		if (!PageHighMem(sg_page(s))) {
-			check_for_illegal_area(dev, sg_virt(s), sg_dma_len(s));
-		}
-
 		check_sg_segment(dev, s);
 
 		add_dma_entry(entry);
-- 
GitLab


From 842fce43190cc3611584c178caec8300c7eaf236 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@nxp.com>
Date: Wed, 13 Oct 2021 13:17:04 +0800
Subject: [PATCH 0430/4878] ASoC: wm8960: Fix clock configuration on slave mode

[ Upstream commit 6b9b546dc00797c74bef491668ce5431ff54e1e2 ]

There is a noise issue for 8kHz sample rate on slave mode.
Compared with master mode, the difference is the DACDIV
setting, after correcting the DACDIV, the noise is gone.

There is no noise issue for 48kHz sample rate, because
the default value of DACDIV is correct for 48kHz.

So wm8960_configure_clocking() should be functional for
ADC and DAC function even if it is slave mode.

In order to be compatible for old use case, just add
condition for checking that sysclk is zero with
slave mode.

Fixes: 0e50b51aa22f ("ASoC: wm8960: Let wm8960 driver configure its bit clock and frame clock")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/1634102224-3922-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/wm8960.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 9d325555e2191..618692e2e0e41 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -742,9 +742,16 @@ static int wm8960_configure_clocking(struct snd_soc_component *component)
 	int i, j, k;
 	int ret;
 
-	if (!(iface1 & (1<<6))) {
-		dev_dbg(component->dev,
-			"Codec is slave mode, no need to configure clock\n");
+	/*
+	 * For Slave mode clocking should still be configured,
+	 * so this if statement should be removed, but some platform
+	 * may not work if the sysclk is not configured, to avoid such
+	 * compatible issue, just add '!wm8960->sysclk' condition in
+	 * this if statement.
+	 */
+	if (!(iface1 & (1 << 6)) && !wm8960->sysclk) {
+		dev_warn(component->dev,
+			 "slave mode, but proceeding with no clock configuration\n");
 		return 0;
 	}
 
-- 
GitLab


From 69ea08c1b539657c0bea27d972f03b393caccc30 Mon Sep 17 00:00:00 2001
From: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Date: Tue, 14 Sep 2021 19:25:05 -0400
Subject: [PATCH 0431/4878] ice: fix getting UDP tunnel entry

[ Upstream commit e4c2efa1393c6f1fbfabf91d1d83fcb4ae691ccb ]

Correct parameters order in call to ice_tunnel_idx_to_entry function.

Entry in sparse port table is correct when the idx is 0. For idx 1 one
correct entry should be skipped, for idx 2 two of them should be skipped
etc. Change if condition to be true when idx is 0, which means that
previous valid entry of this tunnel type were skipped.

Fixes: b20e6c17c468 ("ice: convert to new udp_tunnel infrastructure")
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_flex_pipe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c
index 9095b4d274ad2..a81be917f6538 100644
--- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c
+++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c
@@ -1669,7 +1669,7 @@ static u16 ice_tunnel_idx_to_entry(struct ice_hw *hw, enum ice_tunnel_type type,
 	for (i = 0; i < hw->tnl.count && i < ICE_TUNNEL_MAX_ENTRIES; i++)
 		if (hw->tnl.tbl[i].valid &&
 		    hw->tnl.tbl[i].type == type &&
-		    idx--)
+		    idx-- == 0)
 			return i;
 
 	WARN_ON_ONCE(1);
@@ -1829,7 +1829,7 @@ int ice_udp_tunnel_set_port(struct net_device *netdev, unsigned int table,
 	u16 index;
 
 	tnl_type = ti->type == UDP_TUNNEL_TYPE_VXLAN ? TNL_VXLAN : TNL_GENEVE;
-	index = ice_tunnel_idx_to_entry(&pf->hw, idx, tnl_type);
+	index = ice_tunnel_idx_to_entry(&pf->hw, tnl_type, idx);
 
 	status = ice_create_tunnel(&pf->hw, index, tnl_type, ntohs(ti->port));
 	if (status) {
-- 
GitLab


From 911e01990c70521d3601a03ca15716925afa9ca4 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Tue, 12 Oct 2021 08:18:13 -0400
Subject: [PATCH 0432/4878] netfilter: ip6t_rt: fix rt0_hdr parsing in rt_mt6

[ Upstream commit a482c5e00a9b5a194085bcd372ac36141028becb ]

In rt_mt6(), when it's a nonlinear skb, the 1st skb_header_pointer()
only copies sizeof(struct ipv6_rt_hdr) to _route that rh points to.
The access by ((const struct rt0_hdr *)rh)->reserved will overflow
the buffer. So this access should be moved below the 2nd call to
skb_header_pointer().

Besides, after the 2nd skb_header_pointer(), its return value should
also be checked, othersize, *rp may cause null-pointer-ref.

v1->v2:
  - clean up some old debugging log.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/netfilter/ip6t_rt.c | 48 +++++-------------------------------
 1 file changed, 6 insertions(+), 42 deletions(-)

diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index 733c83d38b308..4ad8b2032f1f9 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -25,12 +25,7 @@ MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");
 static inline bool
 segsleft_match(u_int32_t min, u_int32_t max, u_int32_t id, bool invert)
 {
-	bool r;
-	pr_debug("segsleft_match:%c 0x%x <= 0x%x <= 0x%x\n",
-		 invert ? '!' : ' ', min, id, max);
-	r = (id >= min && id <= max) ^ invert;
-	pr_debug(" result %s\n", r ? "PASS" : "FAILED");
-	return r;
+	return (id >= min && id <= max) ^ invert;
 }
 
 static bool rt_mt6(const struct sk_buff *skb, struct xt_action_param *par)
@@ -65,30 +60,6 @@ static bool rt_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 		return false;
 	}
 
-	pr_debug("IPv6 RT LEN %u %u ", hdrlen, rh->hdrlen);
-	pr_debug("TYPE %04X ", rh->type);
-	pr_debug("SGS_LEFT %u %02X\n", rh->segments_left, rh->segments_left);
-
-	pr_debug("IPv6 RT segsleft %02X ",
-		 segsleft_match(rtinfo->segsleft[0], rtinfo->segsleft[1],
-				rh->segments_left,
-				!!(rtinfo->invflags & IP6T_RT_INV_SGS)));
-	pr_debug("type %02X %02X %02X ",
-		 rtinfo->rt_type, rh->type,
-		 (!(rtinfo->flags & IP6T_RT_TYP) ||
-		  ((rtinfo->rt_type == rh->type) ^
-		   !!(rtinfo->invflags & IP6T_RT_INV_TYP))));
-	pr_debug("len %02X %04X %02X ",
-		 rtinfo->hdrlen, hdrlen,
-		 !(rtinfo->flags & IP6T_RT_LEN) ||
-		  ((rtinfo->hdrlen == hdrlen) ^
-		   !!(rtinfo->invflags & IP6T_RT_INV_LEN)));
-	pr_debug("res %02X %02X %02X ",
-		 rtinfo->flags & IP6T_RT_RES,
-		 ((const struct rt0_hdr *)rh)->reserved,
-		 !((rtinfo->flags & IP6T_RT_RES) &&
-		   (((const struct rt0_hdr *)rh)->reserved)));
-
 	ret = (segsleft_match(rtinfo->segsleft[0], rtinfo->segsleft[1],
 			      rh->segments_left,
 			      !!(rtinfo->invflags & IP6T_RT_INV_SGS))) &&
@@ -107,22 +78,22 @@ static bool rt_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 						       reserved),
 					sizeof(_reserved),
 					&_reserved);
+		if (!rp) {
+			par->hotdrop = true;
+			return false;
+		}
 
 		ret = (*rp == 0);
 	}
 
-	pr_debug("#%d ", rtinfo->addrnr);
 	if (!(rtinfo->flags & IP6T_RT_FST)) {
 		return ret;
 	} else if (rtinfo->flags & IP6T_RT_FST_NSTRICT) {
-		pr_debug("Not strict ");
 		if (rtinfo->addrnr > (unsigned int)((hdrlen - 8) / 16)) {
-			pr_debug("There isn't enough space\n");
 			return false;
 		} else {
 			unsigned int i = 0;
 
-			pr_debug("#%d ", rtinfo->addrnr);
 			for (temp = 0;
 			     temp < (unsigned int)((hdrlen - 8) / 16);
 			     temp++) {
@@ -138,26 +109,20 @@ static bool rt_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 					return false;
 				}
 
-				if (ipv6_addr_equal(ap, &rtinfo->addrs[i])) {
-					pr_debug("i=%d temp=%d;\n", i, temp);
+				if (ipv6_addr_equal(ap, &rtinfo->addrs[i]))
 					i++;
-				}
 				if (i == rtinfo->addrnr)
 					break;
 			}
-			pr_debug("i=%d #%d\n", i, rtinfo->addrnr);
 			if (i == rtinfo->addrnr)
 				return ret;
 			else
 				return false;
 		}
 	} else {
-		pr_debug("Strict ");
 		if (rtinfo->addrnr > (unsigned int)((hdrlen - 8) / 16)) {
-			pr_debug("There isn't enough space\n");
 			return false;
 		} else {
-			pr_debug("#%d ", rtinfo->addrnr);
 			for (temp = 0; temp < rtinfo->addrnr; temp++) {
 				ap = skb_header_pointer(skb,
 							ptr
@@ -173,7 +138,6 @@ static bool rt_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 				if (!ipv6_addr_equal(ap, &rtinfo->addrs[temp]))
 					break;
 			}
-			pr_debug("temp=%d #%d\n", temp, rtinfo->addrnr);
 			if (temp == rtinfo->addrnr &&
 			    temp == (unsigned int)((hdrlen - 8) / 16))
 				return ret;
-- 
GitLab


From 9c8943812dace238ec49fd62e599aad196a583c6 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <atenart@kernel.org>
Date: Tue, 12 Oct 2021 16:54:37 +0200
Subject: [PATCH 0433/4878] netfilter: ipvs: make global sysctl readonly in
 non-init netns

[ Upstream commit 174c376278949c44aad89c514a6b5db6cee8db59 ]

Because the data pointer of net/ipv4/vs/debug_level is not updated per
netns, it must be marked as read-only in non-init netns.

Fixes: c6d2d445d8de ("IPVS: netns, final patch enabling network name space.")
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/ipvs/ip_vs_ctl.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index c25097092a060..29ec3ef63edc7 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -4090,6 +4090,11 @@ static int __net_init ip_vs_control_net_init_sysctl(struct netns_ipvs *ipvs)
 	tbl[idx++].data = &ipvs->sysctl_conn_reuse_mode;
 	tbl[idx++].data = &ipvs->sysctl_schedule_icmp;
 	tbl[idx++].data = &ipvs->sysctl_ignore_tunneled;
+#ifdef CONFIG_IP_VS_DEBUG
+	/* Global sysctls must be ro in non-init netns */
+	if (!net_eq(net, &init_net))
+		tbl[idx++].mode = 0444;
+#endif
 
 	ipvs->sysctl_hdr = register_net_sysctl(net, "net/ipv4/vs", tbl);
 	if (ipvs->sysctl_hdr == NULL) {
-- 
GitLab


From c28bea6b876f6d47e36c949c87de938dc0083858 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Fri, 15 Oct 2021 15:07:54 +0200
Subject: [PATCH 0434/4878] lan78xx: select CRC32

[ Upstream commit 46393d61a328d7c4e3264252dae891921126c674 ]

Fix the following build/link error by adding a dependency on the CRC32
routines:

  ld: drivers/net/usb/lan78xx.o: in function `lan78xx_set_multicast':
  lan78xx.c:(.text+0x48cf): undefined reference to `crc32_le'

The actual use of crc32_le() comes indirectly through ether_crc().

Fixes: 55d7de9de6c30 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 4efad42b9aa97..867ff2ee8ecf3 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -117,6 +117,7 @@ config USB_LAN78XX
 	select PHYLIB
 	select MICROCHIP_PHY
 	select FIXED_PHY
+	select CRC32
 	help
 	  This option adds support for Microchip LAN78XX based USB 2
 	  & USB 3 10/100/1000 Ethernet adapters.
-- 
GitLab


From 38d984e5e845b2c0ec87e396c3f3771b4187990f Mon Sep 17 00:00:00 2001
From: Leonard Crestez <cdleonard@gmail.com>
Date: Fri, 15 Oct 2021 10:26:04 +0300
Subject: [PATCH 0435/4878] tcp: md5: Fix overlap between vrf and non-vrf keys

[ Upstream commit 86f1e3a8489f6a0232c1f3bc2bdb379f5ccdecec ]

With net.ipv4.tcp_l3mdev_accept=1 it is possible for a listen socket to
accept connection from the same client address in different VRFs. It is
also possible to set different MD5 keys for these clients which differ
only in the tcpm_l3index field.

This appears to work when distinguishing between different VRFs but not
between non-VRF and VRF connections. In particular:

 * tcp_md5_do_lookup_exact will match a non-vrf key against a vrf key.
This means that adding a key with l3index != 0 after a key with l3index
== 0 will cause the earlier key to be deleted. Both keys can be present
if the non-vrf key is added later.
 * _tcp_md5_do_lookup can match a non-vrf key before a vrf key. This
casues failures if the passwords differ.

Fix this by making tcp_md5_do_lookup_exact perform an actual exact
comparison on l3index and by making  __tcp_md5_do_lookup perfer
vrf-bound keys above other considerations like prefixlen.

Fixes: dea53bb80e07 ("tcp: Add l3index to tcp_md5sig_key and md5 functions")
Signed-off-by: Leonard Crestez <cdleonard@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp_ipv4.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 71395e745bc5e..017cd666387f3 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1022,6 +1022,20 @@ static void tcp_v4_reqsk_destructor(struct request_sock *req)
 DEFINE_STATIC_KEY_FALSE(tcp_md5_needed);
 EXPORT_SYMBOL(tcp_md5_needed);
 
+static bool better_md5_match(struct tcp_md5sig_key *old, struct tcp_md5sig_key *new)
+{
+	if (!old)
+		return true;
+
+	/* l3index always overrides non-l3index */
+	if (old->l3index && new->l3index == 0)
+		return false;
+	if (old->l3index == 0 && new->l3index)
+		return true;
+
+	return old->prefixlen < new->prefixlen;
+}
+
 /* Find the Key structure for an address.  */
 struct tcp_md5sig_key *__tcp_md5_do_lookup(const struct sock *sk, int l3index,
 					   const union tcp_md5_addr *addr,
@@ -1059,8 +1073,7 @@ struct tcp_md5sig_key *__tcp_md5_do_lookup(const struct sock *sk, int l3index,
 			match = false;
 		}
 
-		if (match && (!best_match ||
-			      key->prefixlen > best_match->prefixlen))
+		if (match && better_md5_match(best_match, key))
 			best_match = key;
 	}
 	return best_match;
@@ -1090,7 +1103,7 @@ static struct tcp_md5sig_key *tcp_md5_do_lookup_exact(const struct sock *sk,
 				 lockdep_sock_is_held(sk)) {
 		if (key->family != family)
 			continue;
-		if (key->l3index && key->l3index != l3index)
+		if (key->l3index != l3index)
 			continue;
 		if (!memcmp(&key->addr, addr, size) &&
 		    key->prefixlen == prefixlen)
-- 
GitLab


From ef97219d5fecd96b599dc48a9f95c5a50fc434ab Mon Sep 17 00:00:00 2001
From: Stephen Suryaputra <ssuryaextr@gmail.com>
Date: Thu, 14 Oct 2021 09:08:45 -0400
Subject: [PATCH 0436/4878] ipv6: When forwarding count rx stats on the orig
 netdev

[ Upstream commit 0857d6f8c759d95f89d0436f86cdfd189ef99f20 ]

Commit bdb7cc643fc9 ("ipv6: Count interface receive statistics on the
ingress netdev") does not work when ip6_forward() executes on the skbs
with vrf-enslaved netdev. Use IP6CB(skb)->iif to get to the right one.

Add a selftest script to verify.

Fixes: bdb7cc643fc9 ("ipv6: Count interface receive statistics on the ingress netdev")
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211014130845.410602-1-ssuryaextr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/ip6_output.c                         |   3 +-
 .../testing/selftests/net/forwarding/Makefile |   1 +
 .../net/forwarding/forwarding.config.sample   |   2 +
 .../net/forwarding/ip6_forward_instats_vrf.sh | 172 ++++++++++++++++++
 tools/testing/selftests/net/forwarding/lib.sh |   8 +
 5 files changed, 185 insertions(+), 1 deletion(-)
 create mode 100755 tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 72a673a43a754..c2f8e69d7d7a0 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -487,13 +487,14 @@ static bool ip6_pkt_too_big(const struct sk_buff *skb, unsigned int mtu)
 
 int ip6_forward(struct sk_buff *skb)
 {
-	struct inet6_dev *idev = __in6_dev_get_safely(skb->dev);
 	struct dst_entry *dst = skb_dst(skb);
 	struct ipv6hdr *hdr = ipv6_hdr(skb);
 	struct inet6_skb_parm *opt = IP6CB(skb);
 	struct net *net = dev_net(dst->dev);
+	struct inet6_dev *idev;
 	u32 mtu;
 
+	idev = __in6_dev_get_safely(dev_get_by_index_rcu(net, IP6CB(skb)->iif));
 	if (net->ipv6.devconf_all->forwarding == 0)
 		goto error;
 
diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
index 250fbb2d16252..881e680c2e9c2 100644
--- a/tools/testing/selftests/net/forwarding/Makefile
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -9,6 +9,7 @@ TEST_PROGS = bridge_igmp.sh \
 	gre_inner_v4_multipath.sh \
 	gre_inner_v6_multipath.sh \
 	gre_multipath.sh \
+	ip6_forward_instats_vrf.sh \
 	ip6gre_inner_v4_multipath.sh \
 	ip6gre_inner_v6_multipath.sh \
 	ipip_flat_gre_key.sh \
diff --git a/tools/testing/selftests/net/forwarding/forwarding.config.sample b/tools/testing/selftests/net/forwarding/forwarding.config.sample
index b802c14d29509..e5e2fbeca22ec 100644
--- a/tools/testing/selftests/net/forwarding/forwarding.config.sample
+++ b/tools/testing/selftests/net/forwarding/forwarding.config.sample
@@ -39,3 +39,5 @@ NETIF_CREATE=yes
 # Timeout (in seconds) before ping exits regardless of how many packets have
 # been sent or received
 PING_TIMEOUT=5
+# IPv6 traceroute utility name.
+TROUTE6=traceroute6
diff --git a/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh b/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh
new file mode 100755
index 0000000000000..9f5b3e2e5e954
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh
@@ -0,0 +1,172 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test ipv6 stats on the incoming if when forwarding with VRF
+
+ALL_TESTS="
+	ipv6_ping
+	ipv6_in_too_big_err
+	ipv6_in_hdr_err
+	ipv6_in_addr_err
+	ipv6_in_discard
+"
+
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:1:1::2/64
+	ip -6 route add vrf v$h1 2001:1:2::/64 via 2001:1:1::1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 2001:1:2::/64 via 2001:1:1::1
+	simple_if_fini $h1 2001:1:1::2/64
+}
+
+router_create()
+{
+	vrf_create router
+	__simple_if_init $rtr1 router 2001:1:1::1/64
+	__simple_if_init $rtr2 router 2001:1:2::1/64
+	mtu_set $rtr2 1280
+}
+
+router_destroy()
+{
+	mtu_restore $rtr2
+	__simple_if_fini $rtr2 2001:1:2::1/64
+	__simple_if_fini $rtr1 2001:1:1::1/64
+	vrf_destroy router
+}
+
+h2_create()
+{
+	simple_if_init $h2 2001:1:2::2/64
+	ip -6 route add vrf v$h2 2001:1:1::/64 via 2001:1:2::1
+	mtu_set $h2 1280
+}
+
+h2_destroy()
+{
+	mtu_restore $h2
+	ip -6 route del vrf v$h2 2001:1:1::/64 via 2001:1:2::1
+	simple_if_fini $h2 2001:1:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rtr1=${NETIFS[p2]}
+
+	rtr2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	h1_create
+	router_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	router_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ipv6_in_too_big_err()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
+	local vrf_name=$(master_name_get $h1)
+
+	# Send too big packets
+	ip vrf exec $vrf_name \
+		$PING6 -s 1300 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InTooBigErrors"
+}
+
+ipv6_in_hdr_err()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
+	local vrf_name=$(master_name_get $h1)
+
+	# Send packets with hop limit 1, easiest with traceroute6 as some ping6
+	# doesn't allow hop limit to be specified
+	ip vrf exec $vrf_name \
+		$TROUTE6 2001:1:2::2 &> /dev/null
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InHdrErrors"
+}
+
+ipv6_in_addr_err()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
+	local vrf_name=$(master_name_get $h1)
+
+	# Disable forwarding temporary while sending the packet
+	sysctl -qw net.ipv6.conf.all.forwarding=0
+	ip vrf exec $vrf_name \
+		$PING6 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
+	sysctl -qw net.ipv6.conf.all.forwarding=1
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InAddrErrors"
+}
+
+ipv6_in_discard()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InDiscards)
+	local vrf_name=$(master_name_get $h1)
+
+	# Add a policy to discard
+	ip xfrm policy add dst 2001:1:2::2/128 dir fwd action block
+	ip vrf exec $vrf_name \
+		$PING6 2001:1:2::2 -c 1 -w $PING_TIMEOUT &> /dev/null
+	ip xfrm policy del dst 2001:1:2::2/128 dir fwd
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InDiscards)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InDiscards"
+}
+ipv6_ping()
+{
+	RET=0
+
+	ping6_test $h1 2001:1:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 927f9ba49e087..be6fa808d2196 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -674,6 +674,14 @@ qdisc_parent_stats_get()
 	    | jq '.[] | select(.parent == "'"$parent"'") | '"$selector"
 }
 
+ipv6_stats_get()
+{
+	local dev=$1; shift
+	local stat=$1; shift
+
+	cat /proc/net/dev_snmp6/$dev | grep "^$stat" | cut -f2
+}
+
 humanize()
 {
 	local speed=$1; shift
-- 
GitLab


From 6edf99b000d6fb0e2b6a58580c1735453d6f3922 Mon Sep 17 00:00:00 2001
From: Aleksander Jan Bajkowski <olek2@wp.pl>
Date: Sat, 16 Oct 2021 00:10:20 +0200
Subject: [PATCH 0437/4878] net: dsa: lantiq_gswip: fix register definition

[ Upstream commit 66d262804a2276721eac86cf18fcd61046149193 ]

I compared the register definitions with the D-Link DWR-966
GPL sources and found that the PUAFD field definition was
incorrect. This definition is unused and causes no issues.

Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/lantiq_gswip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 95e634cbc4b63..4d23a7aba7961 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -229,7 +229,7 @@
 #define GSWIP_SDMA_PCTRLp(p)		(0xBC0 + ((p) * 0x6))
 #define  GSWIP_SDMA_PCTRL_EN		BIT(0)	/* SDMA Port Enable */
 #define  GSWIP_SDMA_PCTRL_FCEN		BIT(1)	/* Flow Control Enable */
-#define  GSWIP_SDMA_PCTRL_PAUFWD	BIT(1)	/* Pause Frame Forwarding */
+#define  GSWIP_SDMA_PCTRL_PAUFWD	BIT(3)	/* Pause Frame Forwarding */
 
 #define GSWIP_TABLE_ACTIVE_VLAN		0x01
 #define GSWIP_TABLE_VLAN_MAPPING	0x02
-- 
GitLab


From 81dbd898fb7b93286dc962bb3dde38270c0d5b74 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 4 Oct 2021 00:56:06 -0700
Subject: [PATCH 0438/4878] NIOS2: irqflags: rename a redefined register name

[ Upstream commit 4cce60f15c04d69eff6ffc539ab09137dbe15070 ]

Both arch/nios2/ and drivers/mmc/host/tmio_mmc.c define a macro
with the name "CTL_STATUS". Change the one in arch/nios2/ to be
"CTL_FSTATUS" (flags status) to eliminate the build warning.

In file included from ../drivers/mmc/host/tmio_mmc.c:22:
drivers/mmc/host/tmio_mmc.h:31: warning: "CTL_STATUS" redefined
   31 | #define CTL_STATUS 0x1c
arch/nios2/include/asm/registers.h:14: note: this is the location of the previous definition
   14 | #define CTL_STATUS      0

Fixes: b31ebd8055ea ("nios2: Nios2 registers")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/nios2/include/asm/irqflags.h  | 4 ++--
 arch/nios2/include/asm/registers.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/nios2/include/asm/irqflags.h b/arch/nios2/include/asm/irqflags.h
index b3ec3e510706d..25acf27862f91 100644
--- a/arch/nios2/include/asm/irqflags.h
+++ b/arch/nios2/include/asm/irqflags.h
@@ -9,7 +9,7 @@
 
 static inline unsigned long arch_local_save_flags(void)
 {
-	return RDCTL(CTL_STATUS);
+	return RDCTL(CTL_FSTATUS);
 }
 
 /*
@@ -18,7 +18,7 @@ static inline unsigned long arch_local_save_flags(void)
  */
 static inline void arch_local_irq_restore(unsigned long flags)
 {
-	WRCTL(CTL_STATUS, flags);
+	WRCTL(CTL_FSTATUS, flags);
 }
 
 static inline void arch_local_irq_disable(void)
diff --git a/arch/nios2/include/asm/registers.h b/arch/nios2/include/asm/registers.h
index 183c720e454d9..95b67dd16f818 100644
--- a/arch/nios2/include/asm/registers.h
+++ b/arch/nios2/include/asm/registers.h
@@ -11,7 +11,7 @@
 #endif
 
 /* control register numbers */
-#define CTL_STATUS	0
+#define CTL_FSTATUS	0
 #define CTL_ESTATUS	1
 #define CTL_BSTATUS	2
 #define CTL_IENABLE	3
-- 
GitLab


From 53770a411559cf7bc0906d1df319cc533d2f4f58 Mon Sep 17 00:00:00 2001
From: Nathan Lynch <nathanl@linux.ibm.com>
Date: Fri, 15 Oct 2021 12:39:02 -0500
Subject: [PATCH 0439/4878] powerpc/smp: do not decrement idle task preempt
 count in CPU offline

[ Upstream commit 787252a10d9422f3058df9a4821f389e5326c440 ]

With PREEMPT_COUNT=y, when a CPU is offlined and then onlined again, we
get:

BUG: scheduling while atomic: swapper/1/0/0x00000000
no locks held by swapper/1/0.
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.15.0-rc2+ #100
Call Trace:
 dump_stack_lvl+0xac/0x108
 __schedule_bug+0xac/0xe0
 __schedule+0xcf8/0x10d0
 schedule_idle+0x3c/0x70
 do_idle+0x2d8/0x4a0
 cpu_startup_entry+0x38/0x40
 start_secondary+0x2ec/0x3a0
 start_secondary_prolog+0x10/0x14

This is because powerpc's arch_cpu_idle_dead() decrements the idle task's
preempt count, for reasons explained in commit a7c2bb8279d2 ("powerpc:
Re-enable preemption before cpu_die()"), specifically "start_secondary()
expects a preempt_count() of 0."

However, since commit 2c669ef6979c ("powerpc/preempt: Don't touch the idle
task's preempt_count during hotplug") and commit f1a0a376ca0c ("sched/core:
Initialize the idle task with preemption disabled"), that justification no
longer holds.

The idle task isn't supposed to re-enable preemption, so remove the
vestigial preempt_enable() from the CPU offline path.

Tested with pseries and powernv in qemu, and pseries on PowerVM.

Fixes: 2c669ef6979c ("powerpc/preempt: Don't touch the idle task's preempt_count during hotplug")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211015173902.2278118-1-nathanl@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/smp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 91f274134884e..452cbf98bfd71 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1578,8 +1578,6 @@ void __cpu_die(unsigned int cpu)
 
 void arch_cpu_idle_dead(void)
 {
-	sched_preempt_enable_no_resched();
-
 	/*
 	 * Disable on the down path. This will be re-enabled by
 	 * start_secondary() via start_secondary_resume() below
-- 
GitLab


From 21f61d10435c9c112bc14433fc026b231bdea918 Mon Sep 17 00:00:00 2001
From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Tue, 19 Oct 2021 22:16:29 +0800
Subject: [PATCH 0440/4878] net: hns3: reset DWRR of unused tc to zero

[ Upstream commit b63fcaab959807282e9822e659034edf95fc8bd1 ]

Currently, DWRR of tc will be initialized to a fixed value when this tc
is enabled, but it is not been reset to 0 when this tc is disabled. It
cause a problem that the DWRR of unused tc is not 0 after using tc tool
to add and delete multi-tc parameters.

For examples, after enabling 4 TCs and restoring to 1 TC by follow
tc commands:

$ tc qdisc add dev eth0 root mqprio num_tc 4 map 0 1 2 3 0 1 2 3 queues \
  8@0 8@8 8@16 8@24 hw 1 mode channel
$ tc qdisc del dev eth0 root

Now there is just one TC is enabled for eth0, but the tc info querying by
debugfs is shown as follow:

$ cat /mnt/hns3/0000:7d:00.0/tm/tc_sch_info
enabled tc number: 1
weight_offset: 14
TC    MODE  WEIGHT
0     dwrr    100
1     dwrr    100
2     dwrr    100
3     dwrr    100
4     dwrr      0
5     dwrr      0
6     dwrr      0
7     dwrr      0

This patch fixes it by resetting DWRR of tc to 0 when tc is disabled.

Fixes: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 69d081515c60a..71aa6d16fc19e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -671,6 +671,8 @@ static void hclge_tm_pg_info_init(struct hclge_dev *hdev)
 		hdev->tm_info.pg_info[i].tc_bit_map = hdev->hw_tc_map;
 		for (k = 0; k < hdev->tm_info.num_tc; k++)
 			hdev->tm_info.pg_info[i].tc_dwrr[k] = BW_PERCENT;
+		for (; k < HNAE3_MAX_TC; k++)
+			hdev->tm_info.pg_info[i].tc_dwrr[k] = 0;
 	}
 }
 
-- 
GitLab


From 96c013f40c9b524f15fafc653284776902d2dfd8 Mon Sep 17 00:00:00 2001
From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Tue, 19 Oct 2021 22:16:30 +0800
Subject: [PATCH 0441/4878] net: hns3: add limit ets dwrr bandwidth cannot be 0

[ Upstream commit 731797fdffa3d083db536e2fdd07ceb050bb40b1 ]

If ets dwrr bandwidth of tc is set to 0, the hardware will switch to SP
mode. In this case, this tc may occupy all the tx bandwidth if it has
huge traffic, so it violates the purpose of the user setting.

To fix this problem, limit the ets dwrr bandwidth must greater than 0.

Fixes: cacde272dd00 ("net: hns3: Add hclge_dcb module for the support of DCB feature")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 28a90ead4795d..8e6085753b9f2 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -134,6 +134,15 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
 				*changed = true;
 			break;
 		case IEEE_8021QAZ_TSA_ETS:
+			/* The hardware will switch to sp mode if bandwidth is
+			 * 0, so limit ets bandwidth must be greater than 0.
+			 */
+			if (!ets->tc_tx_bw[i]) {
+				dev_err(&hdev->pdev->dev,
+					"tc%u ets bw cannot be 0\n", i);
+				return -EINVAL;
+			}
+
 			if (hdev->tm_info.tc_info[i].tc_sch_mode !=
 				HCLGE_SCH_MODE_DWRR)
 				*changed = true;
-- 
GitLab


From 32b860d364d2fe3b2a5c2f506d7f7d08afea4994 Mon Sep 17 00:00:00 2001
From: Yunsheng Lin <linyunsheng@huawei.com>
Date: Tue, 19 Oct 2021 22:16:33 +0800
Subject: [PATCH 0442/4878] net: hns3: schedule the polling again when
 allocation fails

[ Upstream commit 68752b24f51a71d4f350a764d890b670f59062c5 ]

Currently when there is a rx page allocation failure, it is
possible that polling may be stopped if there is no more packet
to be reveiced, which may cause queue stall problem under memory
pressure.

This patch makes sure polling is scheduled again when there is
any rx page allocation failure, and polling will try to allocate
receive buffers until it succeeds.

Now the allocation retry is added, it is unnecessary to do the rx
page allocation at the end of rx cleaning, so remove it. And reset
the unused_count to zero after calling hns3_nic_alloc_rx_buffers()
to avoid calling hns3_nic_alloc_rx_buffers() repeatedly under
memory pressure.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 22 ++++++++++---------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 4777db2623cf4..e2790deb6dab0 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2637,7 +2637,8 @@ static int hns3_desc_unused(struct hns3_enet_ring *ring)
 	return ((ntc >= ntu) ? 0 : ring->desc_num) + ntc - ntu;
 }
 
-static void hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
+/* Return true if there is any allocation failure */
+static bool hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 				      int cleand_count)
 {
 	struct hns3_desc_cb *desc_cb;
@@ -2662,7 +2663,10 @@ static void hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 				hns3_rl_err(ring_to_netdev(ring),
 					    "alloc rx buffer failed: %d\n",
 					    ret);
-				break;
+
+				writel(i, ring->tqp->io_base +
+				       HNS3_RING_RX_RING_HEAD_REG);
+				return true;
 			}
 			hns3_replace_buffer(ring, ring->next_to_use, &res_cbs);
 
@@ -2675,6 +2679,7 @@ static void hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring,
 	}
 
 	writel(i, ring->tqp->io_base + HNS3_RING_RX_RING_HEAD_REG);
+	return false;
 }
 
 static bool hns3_page_is_reusable(struct page *page)
@@ -3218,6 +3223,7 @@ int hns3_clean_rx_ring(struct hns3_enet_ring *ring, int budget,
 {
 #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16
 	int unused_count = hns3_desc_unused(ring);
+	bool failure = false;
 	int recv_pkts = 0;
 	int err;
 
@@ -3226,9 +3232,9 @@ int hns3_clean_rx_ring(struct hns3_enet_ring *ring, int budget,
 	while (recv_pkts < budget) {
 		/* Reuse or realloc buffers */
 		if (unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) {
-			hns3_nic_alloc_rx_buffers(ring, unused_count);
-			unused_count = hns3_desc_unused(ring) -
-					ring->pending_buf;
+			failure = failure ||
+				hns3_nic_alloc_rx_buffers(ring, unused_count);
+			unused_count = 0;
 		}
 
 		/* Poll one pkt */
@@ -3247,11 +3253,7 @@ int hns3_clean_rx_ring(struct hns3_enet_ring *ring, int budget,
 	}
 
 out:
-	/* Make all data has been write before submit */
-	if (unused_count > 0)
-		hns3_nic_alloc_rx_buffers(ring, unused_count);
-
-	return recv_pkts;
+	return failure ? budget : recv_pkts;
 }
 
 static bool hns3_get_new_flow_lvl(struct hns3_enet_ring_group *ring_group)
-- 
GitLab


From 6a72e1d78a2ffd5ae94190434aafa7056891c9a8 Mon Sep 17 00:00:00 2001
From: Yufeng Mo <moyufeng@huawei.com>
Date: Tue, 19 Oct 2021 22:16:34 +0800
Subject: [PATCH 0443/4878] net: hns3: fix vf reset workqueue cannot exit

[ Upstream commit 1385cc81baeb3bd8cbbbcdc1557f038ac1712529 ]

The task of VF reset is performed through the workqueue. It checks the
value of hdev->reset_pending to determine whether to exit the loop.
However, the value of hdev->reset_pending may also be assigned by
the interrupt function hclgevf_misc_irq_handle(), which may cause the
loop fail to exit and keep occupying the workqueue. This loop is not
necessary, so remove it and the workqueue will be rescheduled if the
reset needs to be retried or a new reset occurs.

Fixes: 1cc9bc6e5867 ("net: hns3: split hclgevf_reset() into preparing and rebuilding part")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 3641d7c31451c..a47f23f27a11c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2160,9 +2160,9 @@ static void hclgevf_reset_service_task(struct hclgevf_dev *hdev)
 		hdev->reset_attempts = 0;
 
 		hdev->last_reset_time = jiffies;
-		while ((hdev->reset_type =
-			hclgevf_get_reset_level(hdev, &hdev->reset_pending))
-		       != HNAE3_NONE_RESET)
+		hdev->reset_type =
+			hclgevf_get_reset_level(hdev, &hdev->reset_pending);
+		if (hdev->reset_type != HNAE3_NONE_RESET)
 			hclgevf_reset(hdev);
 	} else if (test_and_clear_bit(HCLGEVF_RESET_REQUESTED,
 				      &hdev->reset_state)) {
-- 
GitLab


From d36b15e3e7b5937cb1f6ac590a85facc3a320642 Mon Sep 17 00:00:00 2001
From: Peng Li <lipeng321@huawei.com>
Date: Tue, 19 Oct 2021 22:16:35 +0800
Subject: [PATCH 0444/4878] net: hns3: disable sriov before unload hclge layer

[ Upstream commit 0dd8a25f355b4df2d41c08df1716340854c7d4c5 ]

HNS3 driver includes hns3.ko, hnae3.ko and hclge.ko.
hns3.ko includes network stack and pci_driver, hclge.ko includes
HW device action, algo_ops and timer task, hnae3.ko includes some
register function.

When SRIOV is enable and hclge.ko is removed, HW device is unloaded
but VF still exists, PF will not reply VF mbx messages, and cause
errors.

This patch fix it by disable SRIOV before remove hclge.ko.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.c   | 21 +++++++++++++++++++
 drivers/net/ethernet/hisilicon/hns3/hnae3.h   |  1 +
 .../hisilicon/hns3/hns3pf/hclge_main.c        |  1 +
 3 files changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
index eef1b2764d34a..67b0bf310daaa 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
@@ -10,6 +10,27 @@ static LIST_HEAD(hnae3_ae_algo_list);
 static LIST_HEAD(hnae3_client_list);
 static LIST_HEAD(hnae3_ae_dev_list);
 
+void hnae3_unregister_ae_algo_prepare(struct hnae3_ae_algo *ae_algo)
+{
+	const struct pci_device_id *pci_id;
+	struct hnae3_ae_dev *ae_dev;
+
+	if (!ae_algo)
+		return;
+
+	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
+		if (!hnae3_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))
+			continue;
+
+		pci_id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
+		if (!pci_id)
+			continue;
+		if (IS_ENABLED(CONFIG_PCI_IOV))
+			pci_disable_sriov(ae_dev->pdev);
+	}
+}
+EXPORT_SYMBOL(hnae3_unregister_ae_algo_prepare);
+
 /* we are keeping things simple and using single lock for all the
  * list. This is a non-critical code so other updations, if happen
  * in parallel, can wait.
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 912c51e327d64..4a9576a449e10 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -754,6 +754,7 @@ struct hnae3_handle {
 int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev);
 void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev);
 
+void hnae3_unregister_ae_algo_prepare(struct hnae3_ae_algo *ae_algo);
 void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo);
 void hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo);
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 0e869f449f12c..7b94764b4f5d9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -11518,6 +11518,7 @@ static int hclge_init(void)
 
 static void hclge_exit(void)
 {
+	hnae3_unregister_ae_algo_prepare(&ae_algo);
 	hnae3_unregister_ae_algo(&ae_algo);
 	destroy_workqueue(hclge_wq);
 }
-- 
GitLab


From 29f1bdcaa3ddfc9be22c82fa927a8e35b8132df0 Mon Sep 17 00:00:00 2001
From: Kurt Kanzenbach <kurt@linutronix.de>
Date: Wed, 20 Oct 2021 09:04:33 +0200
Subject: [PATCH 0445/4878] net: stmmac: Fix E2E delay mechanism

[ Upstream commit 3cb958027cb8b78d3ee639ce9af54c2ef1bf964f ]

When utilizing End to End delay mechanism, the following error messages show up:

|root@ehl1:~# ptp4l --tx_timestamp_timeout=50 -H -i eno2 -E -m
|ptp4l[950.573]: selected /dev/ptp3 as PTP clock
|ptp4l[950.586]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE
|ptp4l[950.586]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE
|ptp4l[952.879]: port 1: new foreign master 001395.fffe.4897b4-1
|ptp4l[956.879]: selected best master clock 001395.fffe.4897b4
|ptp4l[956.879]: port 1: assuming the grand master role
|ptp4l[956.879]: port 1: LISTENING to GRAND_MASTER on RS_GRAND_MASTER
|ptp4l[962.017]: port 1: received DELAY_REQ without timestamp
|ptp4l[962.273]: port 1: received DELAY_REQ without timestamp
|ptp4l[963.090]: port 1: received DELAY_REQ without timestamp

Commit f2fb6b6275eb ("net: stmmac: enable timestamp snapshot for required PTP
packets in dwmac v5.10a") already addresses this problem for the dwmac
v5.10. However, same holds true for all dwmacs above version v4.10. Correct the
check accordingly. Afterwards everything works as expected.

Tested on Intel Atom(R) x6414RE Processor.

Fixes: 14f347334bf2 ("net: stmmac: Correctly take timestamp for PTPv2")
Fixes: f2fb6b6275eb ("net: stmmac: enable timestamp snapshot for required PTP packets in dwmac v5.10a")
Suggested-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6133b2fe8a78a..0ac61e7ab43cd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -605,7 +605,7 @@ static int stmmac_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
 			config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
 			ptp_v2 = PTP_TCR_TSVER2ENA;
 			snap_type_sel = PTP_TCR_SNAPTYPSEL_1;
-			if (priv->synopsys_id != DWMAC_CORE_5_10)
+			if (priv->synopsys_id < DWMAC_CORE_4_10)
 				ts_event_en = PTP_TCR_TSEVNTENA;
 			ptp_over_ipv4_udp = PTP_TCR_TSIPV4ENA;
 			ptp_over_ipv6_udp = PTP_TCR_TSIPV6ENA;
-- 
GitLab


From 6418508a3ac2a85a48d097f478566708a4f43087 Mon Sep 17 00:00:00 2001
From: Sasha Neftin <sasha.neftin@intel.com>
Date: Wed, 22 Sep 2021 09:55:42 +0300
Subject: [PATCH 0446/4878] e1000e: Fix packet loss on Tiger Lake and later

[ Upstream commit 639e298f432fb058a9496ea16863f53b1ce935fe ]

Update the HW MAC initialization flow. Do not gate DMA clock from
the modPHY block. Keeping this clock will prevent dropped packets
sent in burst mode on the Kumeran interface.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=213651
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=213377
Fixes: fb776f5d57ee ("e1000e: Add support for Tiger Lake")
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Mark Pearson <markpearson@lenovo.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/e1000e/ich8lan.c | 11 ++++++++++-
 drivers/net/ethernet/intel/e1000e/ich8lan.h |  3 +++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 854c585de2e13..3cbb8d1ed67fe 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -4811,7 +4811,7 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
 static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
 {
 	struct e1000_mac_info *mac = &hw->mac;
-	u32 ctrl_ext, txdctl, snoop;
+	u32 ctrl_ext, txdctl, snoop, fflt_dbg;
 	s32 ret_val;
 	u16 i;
 
@@ -4870,6 +4870,15 @@ static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
 		snoop = (u32)~(PCIE_NO_SNOOP_ALL);
 	e1000e_set_pcie_no_snoop(hw, snoop);
 
+	/* Enable workaround for packet loss issue on TGP PCH
+	 * Do not gate DMA clock from the modPHY block
+	 */
+	if (mac->type >= e1000_pch_tgp) {
+		fflt_dbg = er32(FFLT_DBG);
+		fflt_dbg |= E1000_FFLT_DBG_DONT_GATE_WAKE_DMA_CLK;
+		ew32(FFLT_DBG, fflt_dbg);
+	}
+
 	ctrl_ext = er32(CTRL_EXT);
 	ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
 	ew32(CTRL_EXT, ctrl_ext);
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.h b/drivers/net/ethernet/intel/e1000e/ich8lan.h
index e757896287eba..8f2a8f4ce0ee4 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.h
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.h
@@ -286,6 +286,9 @@
 /* Proprietary Latency Tolerance Reporting PCI Capability */
 #define E1000_PCI_LTR_CAP_LPT		0xA8
 
+/* Don't gate wake DMA clock */
+#define E1000_FFLT_DBG_DONT_GATE_WAKE_DMA_CLK	0x1000
+
 void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw);
 void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
 						  bool state);
-- 
GitLab


From eccd00728b1a0665e69f1895164e81bcb068f11c Mon Sep 17 00:00:00 2001
From: Tony Nguyen <anthony.l.nguyen@intel.com>
Date: Tue, 19 Oct 2021 13:04:16 -0700
Subject: [PATCH 0447/4878] ice: Add missing E810 device ids

[ Upstream commit 7dcf78b870be6418d72bb1c4d4924bf0f5ca5052 ]

As part of support for E810 XXV devices, some device ids were
inadvertently left out. Add those missing ids.

Fixes: 195fb97766da ("ice: add additional E810 device id")
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_common.c | 2 ++
 drivers/net/ethernet/intel/ice/ice_devids.h | 4 ++++
 drivers/net/ethernet/intel/ice/ice_main.c   | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 2239a5f45e5a7..64714757bd4f4 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -24,6 +24,8 @@ static enum ice_status ice_set_mac_type(struct ice_hw *hw)
 	case ICE_DEV_ID_E810C_BACKPLANE:
 	case ICE_DEV_ID_E810C_QSFP:
 	case ICE_DEV_ID_E810C_SFP:
+	case ICE_DEV_ID_E810_XXV_BACKPLANE:
+	case ICE_DEV_ID_E810_XXV_QSFP:
 	case ICE_DEV_ID_E810_XXV_SFP:
 		hw->mac_type = ICE_MAC_E810;
 		break;
diff --git a/drivers/net/ethernet/intel/ice/ice_devids.h b/drivers/net/ethernet/intel/ice/ice_devids.h
index 9d8194671f6a6..ef4392e6e2444 100644
--- a/drivers/net/ethernet/intel/ice/ice_devids.h
+++ b/drivers/net/ethernet/intel/ice/ice_devids.h
@@ -21,6 +21,10 @@
 #define ICE_DEV_ID_E810C_QSFP		0x1592
 /* Intel(R) Ethernet Controller E810-C for SFP */
 #define ICE_DEV_ID_E810C_SFP		0x1593
+/* Intel(R) Ethernet Controller E810-XXV for backplane */
+#define ICE_DEV_ID_E810_XXV_BACKPLANE	0x1599
+/* Intel(R) Ethernet Controller E810-XXV for QSFP */
+#define ICE_DEV_ID_E810_XXV_QSFP	0x159A
 /* Intel(R) Ethernet Controller E810-XXV for SFP */
 #define ICE_DEV_ID_E810_XXV_SFP		0x159B
 /* Intel(R) Ethernet Connection E823-C for backplane */
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 5d0dc1f811e0f..66d92a0cfef35 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4773,6 +4773,8 @@ static const struct pci_device_id ice_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_BACKPLANE), 0 },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_QSFP), 0 },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E810C_SFP), 0 },
+	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_BACKPLANE), 0 },
+	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_QSFP), 0 },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E810_XXV_SFP), 0 },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_BACKPLANE), 0 },
 	{ PCI_VDEVICE(INTEL, ICE_DEV_ID_E823C_QSFP), 0 },
-- 
GitLab


From 00ad7a01540968da214e1fe607aff27b97f9883a Mon Sep 17 00:00:00 2001
From: Dan Johansen <strit@manjaro.org>
Date: Wed, 18 Aug 2021 23:48:18 +0200
Subject: [PATCH 0448/4878] drm/panel: ilitek-ili9881c: Fix sync for Feixin
 K101-IM2BYL02 panel

[ Upstream commit 772970620a839141835eaf2bc507d957b10adcca ]

This adjusts sync values according to the datasheet

Fixes: 1c243751c095 ("drm/panel: ilitek-ili9881c: add support for Feixin K101-IM2BYL02 panel")
Co-developed-by: Marius Gripsgard <marius@ubports.com>
Signed-off-by: Dan Johansen <strit@manjaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210818214818.298089-1-strit@manjaro.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index 0145129d7c661..534dd7414d428 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -590,14 +590,14 @@ static const struct drm_display_mode k101_im2byl02_default_mode = {
 	.clock		= 69700,
 
 	.hdisplay	= 800,
-	.hsync_start	= 800 + 6,
-	.hsync_end	= 800 + 6 + 15,
-	.htotal		= 800 + 6 + 15 + 16,
+	.hsync_start	= 800 + 52,
+	.hsync_end	= 800 + 52 + 8,
+	.htotal		= 800 + 52 + 8 + 48,
 
 	.vdisplay	= 1280,
-	.vsync_start	= 1280 + 8,
-	.vsync_end	= 1280 + 8 + 48,
-	.vtotal		= 1280 + 8 + 48 + 52,
+	.vsync_start	= 1280 + 16,
+	.vsync_end	= 1280 + 16 + 6,
+	.vtotal		= 1280 + 16 + 6 + 15,
 
 	.width_mm	= 135,
 	.height_mm	= 217,
-- 
GitLab


From 4a0928c3ebca08e3919514dd0cef674ecace01ba Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Wed, 20 Oct 2021 19:52:06 +0300
Subject: [PATCH 0449/4878] net: enetc: fix ethtool counter name for PM0_TERR

[ Upstream commit fb8dc5fc8cbdfd62ecd16493848aee2f42ed84d9 ]

There are two counters named "MAC tx frames", one of them is actually
incorrect. The correct name for that counter should be "MAC tx error
frames", which is symmetric to the existing "MAC rx error frames".

Fixes: 16eb4c85c964 ("enetc: Add ethtool statistics")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: <Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20211020165206.1069889-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/enetc/enetc_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
index 89e558135432b..9c1690f64a027 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
@@ -157,7 +157,7 @@ static const struct {
 	{ ENETC_PM0_TFRM,   "MAC tx frames" },
 	{ ENETC_PM0_TFCS,   "MAC tx fcs errors" },
 	{ ENETC_PM0_TVLAN,  "MAC tx VLAN frames" },
-	{ ENETC_PM0_TERR,   "MAC tx frames" },
+	{ ENETC_PM0_TERR,   "MAC tx frame errors" },
 	{ ENETC_PM0_TUCA,   "MAC tx unicast frames" },
 	{ ENETC_PM0_TMCA,   "MAC tx multicast frames" },
 	{ ENETC_PM0_TBCA,   "MAC tx broadcast frames" },
-- 
GitLab


From 4758e92e75cac632ddfb518e17601595b4f1ccac Mon Sep 17 00:00:00 2001
From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Fri, 24 Sep 2021 16:55:56 +0900
Subject: [PATCH 0450/4878] can: rcar_can: fix suspend/resume

commit f7c05c3987dcfde9a4e8c2d533db013fabebca0d upstream.

If the driver was not opened, rcar_can_suspend() should not call
clk_disable() because the clock was not enabled.

Fixes: fd1159318e55 ("can: add Renesas R-Car CAN driver")
Link: https://lore.kernel.org/all/20210924075556.223685-1-yoshihiro.shimoda.uh@renesas.com
Cc: stable@vger.kernel.org
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Ayumi Nakamichi <ayumi.nakamichi.kf@renesas.com>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Tested-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/rcar/rcar_can.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index 48575900adb75..3570a4de0085a 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -846,10 +846,12 @@ static int __maybe_unused rcar_can_suspend(struct device *dev)
 	struct rcar_can_priv *priv = netdev_priv(ndev);
 	u16 ctlr;
 
-	if (netif_running(ndev)) {
-		netif_stop_queue(ndev);
-		netif_device_detach(ndev);
-	}
+	if (!netif_running(ndev))
+		return 0;
+
+	netif_stop_queue(ndev);
+	netif_device_detach(ndev);
+
 	ctlr = readw(&priv->regs->ctlr);
 	ctlr |= RCAR_CAN_CTLR_CANM_HALT;
 	writew(ctlr, &priv->regs->ctlr);
@@ -868,6 +870,9 @@ static int __maybe_unused rcar_can_resume(struct device *dev)
 	u16 ctlr;
 	int err;
 
+	if (!netif_running(ndev))
+		return 0;
+
 	err = clk_enable(priv->clk);
 	if (err) {
 		netdev_err(ndev, "clk_enable() failed, error %d\n", err);
@@ -881,10 +886,9 @@ static int __maybe_unused rcar_can_resume(struct device *dev)
 	writew(ctlr, &priv->regs->ctlr);
 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
 
-	if (netif_running(ndev)) {
-		netif_device_attach(ndev);
-		netif_start_queue(ndev);
-	}
+	netif_device_attach(ndev);
+	netif_start_queue(ndev);
+
 	return 0;
 }
 
-- 
GitLab


From 9697ad6395f97208ca620912503a6943ea308ca0 Mon Sep 17 00:00:00 2001
From: Stephane Grosjean <s.grosjean@peak-system.com>
Date: Wed, 29 Sep 2021 16:21:10 +0200
Subject: [PATCH 0451/4878] can: peak_usb: pcan_usb_fd_decode_status(): fix
 back to ERROR_ACTIVE state notification

commit 3d031abc7e7249573148871180c28ecedb5e27df upstream.

This corrects the lack of notification of a return to ERROR_ACTIVE
state for USB - CANFD devices from PEAK-System.

Fixes: 0a25e1f4f185 ("can: peak_usb: add support for PEAK new CANFD USB adapters")
Link: https://lore.kernel.org/all/20210929142111.55757-1-s.grosjean@peak-system.com
Cc: stable@vger.kernel.org
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
index d565922838186..301a0f54fc994 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -551,11 +551,10 @@ static int pcan_usb_fd_decode_status(struct pcan_usb_fd_if *usb_if,
 	} else if (sm->channel_p_w_b & PUCAN_BUS_WARNING) {
 		new_state = CAN_STATE_ERROR_WARNING;
 	} else {
-		/* no error bit (so, no error skb, back to active state) */
-		dev->can.state = CAN_STATE_ERROR_ACTIVE;
+		/* back to (or still in) ERROR_ACTIVE state */
+		new_state = CAN_STATE_ERROR_ACTIVE;
 		pdev->bec.txerr = 0;
 		pdev->bec.rxerr = 0;
-		return 0;
 	}
 
 	/* state hasn't changed */
-- 
GitLab


From 28f28e4bc3a5e0051faa963f10b778ab38c1db69 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Thu, 14 Oct 2021 06:28:33 +0000
Subject: [PATCH 0452/4878] can: peak_pci: peak_pci_remove(): fix UAF

commit 949fe9b35570361bc6ee2652f89a0561b26eec98 upstream.

When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.

Fix this by releasing 'dev' later.

The following log reveals it:

[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[   35.965513 ] Call Trace:
[   35.965718 ]  dump_stack_lvl+0xa8/0xd1
[   35.966028 ]  print_address_description+0x87/0x3b0
[   35.966420 ]  kasan_report+0x172/0x1c0
[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170
[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20
[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.968752 ]  pci_device_remove+0xa9/0x250

Fixes: e6d9c80b7ca1 ("can: peak_pci: add support of some new PEAK-System PCI cards")
Link: https://lore.kernel.org/all/1634192913-15639-1-git-send-email-zheyuma97@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/sja1000/peak_pci.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/can/sja1000/peak_pci.c b/drivers/net/can/sja1000/peak_pci.c
index 4713921bd511e..c3fd7cd802a97 100644
--- a/drivers/net/can/sja1000/peak_pci.c
+++ b/drivers/net/can/sja1000/peak_pci.c
@@ -731,16 +731,15 @@ static void peak_pci_remove(struct pci_dev *pdev)
 		struct net_device *prev_dev = chan->prev_dev;
 
 		dev_info(&pdev->dev, "removing device %s\n", dev->name);
+		/* do that only for first channel */
+		if (!prev_dev && chan->pciec_card)
+			peak_pciec_remove(chan->pciec_card);
 		unregister_sja1000dev(dev);
 		free_sja1000dev(dev);
 		dev = prev_dev;
 
-		if (!dev) {
-			/* do that only for first channel */
-			if (chan->pciec_card)
-				peak_pciec_remove(chan->pciec_card);
+		if (!dev)
 			break;
-		}
 		priv = netdev_priv(dev);
 		chan = priv->priv;
 	}
-- 
GitLab


From 0917fb04069a51c5458a5ca95b7859de88cb61b8 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 7 May 2021 11:18:39 +0200
Subject: [PATCH 0453/4878] can: isotp: isotp_sendmsg(): fix return error on FC
 timeout on TX path

commit d674a8f123b4096d85955c7eaabec688f29724c9 upstream.

When the a large chunk of data send and the receiver does not send a
Flow Control frame back in time, the sendmsg() does not return a error
code, but the number of bytes sent corresponding to the size of the
packet.

If a timeout occurs the isotp_tx_timer_handler() is fired, sets
sk->sk_err and calls the sk->sk_error_report() function. It was
wrongly expected that the error would be propagated to user space in
every case. For isotp_sendmsg() blocking on wait_event_interruptible()
this is not the case.

This patch fixes the problem by checking if sk->sk_err is set and
returning the error to user space.

Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Link: https://github.com/hartkopp/can-isotp/issues/42
Link: https://github.com/hartkopp/can-isotp/pull/43
Link: https://lore.kernel.org/all/20210507091839.1366379-1-mkl@pengutronix.de
Cc: stable@vger.kernel.org
Reported-by: Sottas Guillaume (LMB) <Guillaume.Sottas@liebherr.com>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 5fc28f190677b..c3bbbf4bb8477 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -953,6 +953,9 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	if (wait_tx_done) {
 		/* wait for complete transmission of current pdu */
 		wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);
+
+		if (sk->sk_err)
+			return -sk->sk_err;
 	}
 
 	return size;
-- 
GitLab


From 053bc12df0d6097c1126d0e14fa778a0a8faeb64 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Sat, 9 Oct 2021 15:40:18 +0800
Subject: [PATCH 0454/4878] can: isotp: isotp_sendmsg(): add result check for
 wait_event_interruptible()

commit 9acf636215a6ce9362fe618e7da4913b8bfe84c8 upstream.

Using wait_event_interruptible() to wait for complete transmission,
but do not check the result of wait_event_interruptible() which can be
interrupted. It will result in TX buffer has multiple accessors and
the later process interferes with the previous process.

Following is one of the problems reported by syzbot.

=============================================================
WARNING: CPU: 0 PID: 0 at net/can/isotp.c:840 isotp_tx_timer_handler+0x2e0/0x4c0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.13.0-rc7+ #68
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014
RIP: 0010:isotp_tx_timer_handler+0x2e0/0x4c0
Call Trace:
 <IRQ>
 ? isotp_setsockopt+0x390/0x390
 __hrtimer_run_queues+0xb8/0x610
 hrtimer_run_softirq+0x91/0xd0
 ? rcu_read_lock_sched_held+0x4d/0x80
 __do_softirq+0xe8/0x553
 irq_exit_rcu+0xf8/0x100
 sysvec_apic_timer_interrupt+0x9e/0xc0
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20

Add result check for wait_event_interruptible() in isotp_sendmsg()
to avoid multiple accessers for tx buffer.

Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Link: https://lore.kernel.org/all/10ca695732c9dd267c76a3c30f37aefe1ff7e32f.1633764159.git.william.xuanziyang@huawei.com
Cc: stable@vger.kernel.org
Reported-by: syzbot+78bab6958a614b0c80b9@syzkaller.appspotmail.com
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index c3bbbf4bb8477..9492009bc4ae2 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -863,7 +863,9 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 			return -EAGAIN;
 
 		/* wait for complete transmission of current pdu */
-		wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);
+		err = wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);
+		if (err)
+			return err;
 	}
 
 	if (!size || size > MAX_MSG_LENGTH)
-- 
GitLab


From ecfccb1c58c9c4585cc112d24cb0f06a88ee3525 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Mon, 6 Sep 2021 17:42:19 +0800
Subject: [PATCH 0455/4878] can: j1939: j1939_tp_rxtimer(): fix errant alert in
 j1939_tp_rxtimer

commit b504a884f6b5a77dac7d580ffa08e482f70d1a30 upstream.

When the session state is J1939_SESSION_DONE, j1939_tp_rxtimer() will
give an alert "rx timeout, send abort", but do nothing actually. Move
the alert into session active judgment condition, it is more
reasonable.

One of the scenarios is that j1939_tp_rxtimer() execute followed by
j1939_xtp_rx_abort_one(). After j1939_xtp_rx_abort_one(), the session
state is J1939_SESSION_DONE, then j1939_tp_rxtimer() give an alert.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/20210906094219.95924-1-william.xuanziyang@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/transport.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index bdc95bd7a851f..ea3f1ae61017f 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -1230,12 +1230,11 @@ static enum hrtimer_restart j1939_tp_rxtimer(struct hrtimer *hrtimer)
 		session->err = -ETIME;
 		j1939_session_deactivate(session);
 	} else {
-		netdev_alert(priv->ndev, "%s: 0x%p: rx timeout, send abort\n",
-			     __func__, session);
-
 		j1939_session_list_lock(session->priv);
 		if (session->state >= J1939_SESSION_ACTIVE &&
 		    session->state < J1939_SESSION_ACTIVE_MAX) {
+			netdev_alert(priv->ndev, "%s: 0x%p: rx timeout, send abort\n",
+				     __func__, session);
 			j1939_session_get(session);
 			hrtimer_start(&session->rxtimer,
 				      ms_to_ktime(J1939_XTP_ABORT_TIMEOUT_MS),
-- 
GitLab


From 864e77771a24c877aaf53aee019f78619cbcd668 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Sun, 26 Sep 2021 18:47:57 +0800
Subject: [PATCH 0456/4878] can: j1939: j1939_netdev_start(): fix UAF for
 rx_kref of j1939_priv

commit d9d52a3ebd284882f5562c88e55991add5d01586 upstream.

It will trigger UAF for rx_kref of j1939_priv as following.

        cpu0                                    cpu1
j1939_sk_bind(socket0, ndev0, ...)
j1939_netdev_start
                                        j1939_sk_bind(socket1, ndev0, ...)
                                        j1939_netdev_start
j1939_priv_set
                                        j1939_priv_get_by_ndev_locked
j1939_jsk_add
.....
j1939_netdev_stop
kref_put_lock(&priv->rx_kref, ...)
                                        kref_get(&priv->rx_kref, ...)
                                        REFCOUNT_WARN("addition on 0;...")

====================================================
refcount_t: addition on 0; use-after-free.
WARNING: CPU: 1 PID: 20874 at lib/refcount.c:25 refcount_warn_saturate+0x169/0x1e0
RIP: 0010:refcount_warn_saturate+0x169/0x1e0
Call Trace:
 j1939_netdev_start+0x68b/0x920
 j1939_sk_bind+0x426/0xeb0
 ? security_socket_bind+0x83/0xb0

The rx_kref's kref_get() and kref_put() should use j1939_netdev_lock to
protect.

Fixes: 9d71dd0c70099 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/20210926104757.2021540-1-william.xuanziyang@huawei.com
Cc: stable@vger.kernel.org
Reported-by: syzbot+85d9878b19c94f9019ad@syzkaller.appspotmail.com
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/can/j1939/main.c b/net/can/j1939/main.c
index 6884d18f919c7..266c189f1e809 100644
--- a/net/can/j1939/main.c
+++ b/net/can/j1939/main.c
@@ -249,11 +249,14 @@ struct j1939_priv *j1939_netdev_start(struct net_device *ndev)
 	struct j1939_priv *priv, *priv_new;
 	int ret;
 
-	priv = j1939_priv_get_by_ndev(ndev);
+	spin_lock(&j1939_netdev_lock);
+	priv = j1939_priv_get_by_ndev_locked(ndev);
 	if (priv) {
 		kref_get(&priv->rx_kref);
+		spin_unlock(&j1939_netdev_lock);
 		return priv;
 	}
+	spin_unlock(&j1939_netdev_lock);
 
 	priv = j1939_priv_create(ndev);
 	if (!priv)
@@ -269,10 +272,10 @@ struct j1939_priv *j1939_netdev_start(struct net_device *ndev)
 		/* Someone was faster than us, use their priv and roll
 		 * back our's.
 		 */
+		kref_get(&priv_new->rx_kref);
 		spin_unlock(&j1939_netdev_lock);
 		dev_put(ndev);
 		kfree(priv);
-		kref_get(&priv_new->rx_kref);
 		return priv_new;
 	}
 	j1939_priv_set(ndev, priv);
-- 
GitLab


From 5abc9b9d3ca5df054aaabd10f9d99ebf5ffadeef Mon Sep 17 00:00:00 2001
From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Thu, 30 Sep 2021 11:33:20 +0800
Subject: [PATCH 0457/4878] can: j1939: j1939_xtp_rx_dat_one(): cancel session
 if receive TP.DT with error length

commit 379743985ab6cfe2cbd32067cf4ed497baca6d06 upstream.

According to SAE-J1939-21, the data length of TP.DT must be 8 bytes, so
cancel session when receive unexpected TP.DT message.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/1632972800-45091-1-git-send-email-zhangchangzhong@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/transport.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index ea3f1ae61017f..0076280cb0b3e 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -1770,6 +1770,7 @@ static void j1939_xtp_rx_dpo(struct j1939_priv *priv, struct sk_buff *skb,
 static void j1939_xtp_rx_dat_one(struct j1939_session *session,
 				 struct sk_buff *skb)
 {
+	enum j1939_xtp_abort abort = J1939_XTP_ABORT_FAULT;
 	struct j1939_priv *priv = session->priv;
 	struct j1939_sk_buff_cb *skcb;
 	struct sk_buff *se_skb = NULL;
@@ -1784,9 +1785,11 @@ static void j1939_xtp_rx_dat_one(struct j1939_session *session,
 
 	skcb = j1939_skb_to_cb(skb);
 	dat = skb->data;
-	if (skb->len <= 1)
+	if (skb->len != 8) {
 		/* makes no sense */
+		abort = J1939_XTP_ABORT_UNEXPECTED_DATA;
 		goto out_session_cancel;
+	}
 
 	switch (session->last_cmd) {
 	case 0xff:
@@ -1884,7 +1887,7 @@ static void j1939_xtp_rx_dat_one(struct j1939_session *session,
  out_session_cancel:
 	kfree_skb(se_skb);
 	j1939_session_timers_cancel(session);
-	j1939_session_cancel(session, J1939_XTP_ABORT_FAULT);
+	j1939_session_cancel(session, abort);
 	j1939_session_put(session);
 }
 
-- 
GitLab


From d48db508f9119a98e4bbee76da43364d879aca73 Mon Sep 17 00:00:00 2001
From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Thu, 14 Oct 2021 17:26:40 +0800
Subject: [PATCH 0458/4878] can: j1939: j1939_xtp_rx_rts_session_new(): abort
 TP less than 9 bytes

commit a4fbe70c5cb746441d56b28cf88161d9e0e25378 upstream.

The receiver should abort TP if 'total message size' in TP.CM_RTS and
TP.CM_BAM is less than 9 or greater than 1785 [1], but currently the
j1939 stack only checks the upper bound and the receiver will accept
the following broadcast message:

  vcan1  18ECFF00   [8]  20 08 00 02 FF 00 23 01
  vcan1  18EBFF00   [8]  01 00 00 00 00 00 00 00
  vcan1  18EBFF00   [8]  02 00 FF FF FF FF FF FF

This patch adds check for the lower bound and abort illegal TP.

[1] SAE-J1939-82 A.3.4 Row 2 and A.3.6 Row 6.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/1634203601-3460-1-git-send-email-zhangchangzhong@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/j1939-priv.h | 1 +
 net/can/j1939/transport.c  | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/net/can/j1939/j1939-priv.h b/net/can/j1939/j1939-priv.h
index 12369b604ce95..cea712fb2a9e0 100644
--- a/net/can/j1939/j1939-priv.h
+++ b/net/can/j1939/j1939-priv.h
@@ -326,6 +326,7 @@ int j1939_session_activate(struct j1939_session *session);
 void j1939_tp_schedule_txtimer(struct j1939_session *session, int msec);
 void j1939_session_timers_cancel(struct j1939_session *session);
 
+#define J1939_MIN_TP_PACKET_SIZE 9
 #define J1939_MAX_TP_PACKET_SIZE (7 * 0xff)
 #define J1939_MAX_ETP_PACKET_SIZE (7 * 0x00ffffff)
 
diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index 0076280cb0b3e..e59fbbffa31ce 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -1596,6 +1596,8 @@ j1939_session *j1939_xtp_rx_rts_session_new(struct j1939_priv *priv,
 			abort = J1939_XTP_ABORT_FAULT;
 		else if (len > priv->tp_max_packet_size)
 			abort = J1939_XTP_ABORT_RESOURCE;
+		else if (len < J1939_MIN_TP_PACKET_SIZE)
+			abort = J1939_XTP_ABORT_FAULT;
 	}
 
 	if (abort != J1939_XTP_NO_ABORT) {
-- 
GitLab


From 603d4bcc0fcdd99339f0b6b675fa14e140161de4 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@kernel.org>
Date: Thu, 30 Sep 2021 08:33:13 -0400
Subject: [PATCH 0459/4878] ceph: skip existing superblocks that are
 blocklisted or shut down when mounting

commit 98d0a6fb7303a6f4a120b8b8ed05b86ff5db53e8 upstream.

Currently when mounting, we may end up finding an existing superblock
that corresponds to a blocklisted MDS client. This means that the new
mount ends up being unusable.

If we've found an existing superblock with a client that is already
blocklisted, and the client is not configured to recover on its own,
fail the match. Ditto if the superblock has been forcibly unmounted.

While we're in here, also rename "other" to the more conventional "fsc".

Cc: stable@vger.kernel.org
URL: https://bugzilla.redhat.com/show_bug.cgi?id=1901499
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ceph/super.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 33ba6f0aa55ce..f33bfb255db8f 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -997,16 +997,16 @@ static int ceph_compare_super(struct super_block *sb, struct fs_context *fc)
 	struct ceph_fs_client *new = fc->s_fs_info;
 	struct ceph_mount_options *fsopt = new->mount_options;
 	struct ceph_options *opt = new->client->options;
-	struct ceph_fs_client *other = ceph_sb_to_client(sb);
+	struct ceph_fs_client *fsc = ceph_sb_to_client(sb);
 
 	dout("ceph_compare_super %p\n", sb);
 
-	if (compare_mount_options(fsopt, opt, other)) {
+	if (compare_mount_options(fsopt, opt, fsc)) {
 		dout("monitor(s)/mount options don't match\n");
 		return 0;
 	}
 	if ((opt->flags & CEPH_OPT_FSID) &&
-	    ceph_fsid_compare(&opt->fsid, &other->client->fsid)) {
+	    ceph_fsid_compare(&opt->fsid, &fsc->client->fsid)) {
 		dout("fsid doesn't match\n");
 		return 0;
 	}
@@ -1014,6 +1014,17 @@ static int ceph_compare_super(struct super_block *sb, struct fs_context *fc)
 		dout("flags differ\n");
 		return 0;
 	}
+
+	if (fsc->blocklisted && !ceph_test_mount_opt(fsc, CLEANRECOVER)) {
+		dout("client is blocklisted (and CLEANRECOVER is not set)\n");
+		return 0;
+	}
+
+	if (fsc->mount_state == CEPH_MOUNT_SHUTDOWN) {
+		dout("client has been forcibly unmounted\n");
+		return 0;
+	}
+
 	return 1;
 }
 
-- 
GitLab


From 1727e8688d2ea6e1eaf3b94621a9981cc73ce3b9 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@kernel.org>
Date: Thu, 7 Oct 2021 14:19:49 -0400
Subject: [PATCH 0460/4878] ceph: fix handling of "meta" errors

commit 1bd85aa65d0e7b5e4d09240f492f37c569fdd431 upstream.

Currently, we check the wb_err too early for directories, before all of
the unsafe child requests have been waited on. In order to fix that we
need to check the mapping->wb_err later nearer to the end of ceph_fsync.

We also have an overly-complex method for tracking errors after
blocklisting. The errors recorded in cleanup_session_requests go to a
completely separate field in the inode, but we end up reporting them the
same way we would for any other error (in fsync).

There's no real benefit to tracking these errors in two different
places, since the only reporting mechanism for them is in fsync, and
we'd need to advance them both every time.

Given that, we can just remove i_meta_err, and convert the places that
used it to instead just use mapping->wb_err instead. That also fixes
the original problem by ensuring that we do a check_and_advance of the
wb_err at the end of the fsync op.

Cc: stable@vger.kernel.org
URL: https://tracker.ceph.com/issues/52864
Reported-by: Patrick Donnelly <pdonnell@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ceph/caps.c       | 12 +++---------
 fs/ceph/file.c       |  1 -
 fs/ceph/inode.c      |  2 --
 fs/ceph/mds_client.c | 17 +++++------------
 fs/ceph/super.h      |  3 ---
 5 files changed, 8 insertions(+), 27 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 48ea95b81df84..676f551953060 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2334,7 +2334,6 @@ static int unsafe_request_wait(struct inode *inode)
 
 int ceph_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
-	struct ceph_file_info *fi = file->private_data;
 	struct inode *inode = file->f_mapping->host;
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	u64 flush_tid;
@@ -2369,14 +2368,9 @@ int ceph_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	if (err < 0)
 		ret = err;
 
-	if (errseq_check(&ci->i_meta_err, READ_ONCE(fi->meta_err))) {
-		spin_lock(&file->f_lock);
-		err = errseq_check_and_advance(&ci->i_meta_err,
-					       &fi->meta_err);
-		spin_unlock(&file->f_lock);
-		if (err < 0)
-			ret = err;
-	}
+	err = file_check_and_advance_wb_err(file);
+	if (err < 0)
+		ret = err;
 out:
 	dout("fsync %p%s result=%d\n", inode, datasync ? " datasync" : "", ret);
 	return ret;
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index f1895f78ab452..8e6855e7ed836 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -233,7 +233,6 @@ static int ceph_init_file_info(struct inode *inode, struct file *file,
 
 	spin_lock_init(&fi->rw_contexts_lock);
 	INIT_LIST_HEAD(&fi->rw_contexts);
-	fi->meta_err = errseq_sample(&ci->i_meta_err);
 	fi->filp_gen = READ_ONCE(ceph_inode_to_client(inode)->filp_gen);
 
 	return 0;
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 63e781e4f7e44..76be50f6f041a 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -529,8 +529,6 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
 
 	ceph_fscache_inode_init(ci);
 
-	ci->i_meta_err = 0;
-
 	return &ci->vfs_inode;
 }
 
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 0f57b7d094578..76e347a8cf088 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1481,7 +1481,6 @@ static void cleanup_session_requests(struct ceph_mds_client *mdsc,
 {
 	struct ceph_mds_request *req;
 	struct rb_node *p;
-	struct ceph_inode_info *ci;
 
 	dout("cleanup_session_requests mds%d\n", session->s_mds);
 	mutex_lock(&mdsc->mutex);
@@ -1490,16 +1489,10 @@ static void cleanup_session_requests(struct ceph_mds_client *mdsc,
 				       struct ceph_mds_request, r_unsafe_item);
 		pr_warn_ratelimited(" dropping unsafe request %llu\n",
 				    req->r_tid);
-		if (req->r_target_inode) {
-			/* dropping unsafe change of inode's attributes */
-			ci = ceph_inode(req->r_target_inode);
-			errseq_set(&ci->i_meta_err, -EIO);
-		}
-		if (req->r_unsafe_dir) {
-			/* dropping unsafe directory operation */
-			ci = ceph_inode(req->r_unsafe_dir);
-			errseq_set(&ci->i_meta_err, -EIO);
-		}
+		if (req->r_target_inode)
+			mapping_set_error(req->r_target_inode->i_mapping, -EIO);
+		if (req->r_unsafe_dir)
+			mapping_set_error(req->r_unsafe_dir->i_mapping, -EIO);
 		__unregister_request(mdsc, req);
 	}
 	/* zero r_attempts, so kick_requests() will re-send requests */
@@ -1668,7 +1661,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		spin_unlock(&mdsc->cap_dirty_lock);
 
 		if (dirty_dropped) {
-			errseq_set(&ci->i_meta_err, -EIO);
+			mapping_set_error(inode->i_mapping, -EIO);
 
 			if (ci->i_wrbuffer_ref_head == 0 &&
 			    ci->i_wr_ref == 0 &&
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 9362eeb5812d9..4db305fd2a02a 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -430,8 +430,6 @@ struct ceph_inode_info {
 	struct fscache_cookie *fscache;
 	u32 i_fscache_gen;
 #endif
-	errseq_t i_meta_err;
-
 	struct inode vfs_inode; /* at end */
 };
 
@@ -773,7 +771,6 @@ struct ceph_file_info {
 	spinlock_t rw_contexts_lock;
 	struct list_head rw_contexts;
 
-	errseq_t meta_err;
 	u32 filp_gen;
 	atomic_t num_locks;
 };
-- 
GitLab


From f1b98569e81c37d7e0deada7172f8f60860c1360 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 18 Oct 2021 15:15:39 -0700
Subject: [PATCH 0461/4878] ocfs2: fix data corruption after conversion from
 inline format

commit 5314454ea3ff6fc746eaf71b9a7ceebed52888fa upstream.

Commit 6dbf7bb55598 ("fs: Don't invalidate page buffers in
block_write_full_page()") uncovered a latent bug in ocfs2 conversion
from inline inode format to a normal inode format.

The code in ocfs2_convert_inline_data_to_extents() attempts to zero out
the whole cluster allocated for file data by grabbing, zeroing, and
dirtying all pages covering this cluster.  However these pages are
beyond i_size, thus writeback code generally ignores these dirty pages
and no blocks were ever actually zeroed on the disk.

This oversight was fixed by commit 693c241a5f6a ("ocfs2: No need to zero
pages past i_size.") for standard ocfs2 write path, inline conversion
path was apparently forgotten; the commit log also has a reasoning why
the zeroing actually is not needed.

After commit 6dbf7bb55598, things became worse as writeback code stopped
invalidating buffers on pages beyond i_size and thus these pages end up
with clean PageDirty bit but with buffers attached to these pages being
still dirty.  So when a file is converted from inline format, then
writeback triggers, and then the file is grown so that these pages
become valid, the invalid dirtiness state is preserved,
mark_buffer_dirty() does nothing on these pages (buffers are already
dirty) but page is never written back because it is clean.  So data
written to these pages is lost once pages are reclaimed.

Simple reproducer for the problem is:

  xfs_io -f -c "pwrite 0 2000" -c "pwrite 2000 2000" -c "fsync" \
    -c "pwrite 4000 2000" ocfs2_file

After unmounting and mounting the fs again, you can observe that end of
'ocfs2_file' has lost its contents.

Fix the problem by not doing the pointless zeroing during conversion
from inline format similarly as in the standard write path.

[akpm@linux-foundation.org: fix whitespace, per Joseph]

Link: https://lkml.kernel.org/r/20210930095405.21433-1-jack@suse.cz
Fixes: 6dbf7bb55598 ("fs: Don't invalidate page buffers in block_write_full_page()")
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Tested-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Cc: "Markov, Andrey" <Markov.Andrey@Dell.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ocfs2/alloc.c | 46 ++++++++++++----------------------------------
 1 file changed, 12 insertions(+), 34 deletions(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 78710788c2370..a9a6276ff29bd 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -7047,7 +7047,7 @@ void ocfs2_set_inode_data_inline(struct inode *inode, struct ocfs2_dinode *di)
 int ocfs2_convert_inline_data_to_extents(struct inode *inode,
 					 struct buffer_head *di_bh)
 {
-	int ret, i, has_data, num_pages = 0;
+	int ret, has_data, num_pages = 0;
 	int need_free = 0;
 	u32 bit_off, num;
 	handle_t *handle;
@@ -7056,26 +7056,17 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
 	struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
 	struct ocfs2_alloc_context *data_ac = NULL;
-	struct page **pages = NULL;
-	loff_t end = osb->s_clustersize;
+	struct page *page = NULL;
 	struct ocfs2_extent_tree et;
 	int did_quota = 0;
 
 	has_data = i_size_read(inode) ? 1 : 0;
 
 	if (has_data) {
-		pages = kcalloc(ocfs2_pages_per_cluster(osb->sb),
-				sizeof(struct page *), GFP_NOFS);
-		if (pages == NULL) {
-			ret = -ENOMEM;
-			mlog_errno(ret);
-			return ret;
-		}
-
 		ret = ocfs2_reserve_clusters(osb, 1, &data_ac);
 		if (ret) {
 			mlog_errno(ret);
-			goto free_pages;
+			goto out;
 		}
 	}
 
@@ -7095,7 +7086,8 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
 	}
 
 	if (has_data) {
-		unsigned int page_end;
+		unsigned int page_end = min_t(unsigned, PAGE_SIZE,
+							osb->s_clustersize);
 		u64 phys;
 
 		ret = dquot_alloc_space_nodirty(inode,
@@ -7119,15 +7111,8 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
 		 */
 		block = phys = ocfs2_clusters_to_blocks(inode->i_sb, bit_off);
 
-		/*
-		 * Non sparse file systems zero on extend, so no need
-		 * to do that now.
-		 */
-		if (!ocfs2_sparse_alloc(osb) &&
-		    PAGE_SIZE < osb->s_clustersize)
-			end = PAGE_SIZE;
-
-		ret = ocfs2_grab_eof_pages(inode, 0, end, pages, &num_pages);
+		ret = ocfs2_grab_eof_pages(inode, 0, page_end, &page,
+					   &num_pages);
 		if (ret) {
 			mlog_errno(ret);
 			need_free = 1;
@@ -7138,20 +7123,15 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
 		 * This should populate the 1st page for us and mark
 		 * it up to date.
 		 */
-		ret = ocfs2_read_inline_data(inode, pages[0], di_bh);
+		ret = ocfs2_read_inline_data(inode, page, di_bh);
 		if (ret) {
 			mlog_errno(ret);
 			need_free = 1;
 			goto out_unlock;
 		}
 
-		page_end = PAGE_SIZE;
-		if (PAGE_SIZE > osb->s_clustersize)
-			page_end = osb->s_clustersize;
-
-		for (i = 0; i < num_pages; i++)
-			ocfs2_map_and_dirty_page(inode, handle, 0, page_end,
-						 pages[i], i > 0, &phys);
+		ocfs2_map_and_dirty_page(inode, handle, 0, page_end, page, 0,
+					 &phys);
 	}
 
 	spin_lock(&oi->ip_lock);
@@ -7182,8 +7162,8 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
 	}
 
 out_unlock:
-	if (pages)
-		ocfs2_unlock_and_free_pages(pages, num_pages);
+	if (page)
+		ocfs2_unlock_and_free_pages(&page, num_pages);
 
 out_commit:
 	if (ret < 0 && did_quota)
@@ -7207,8 +7187,6 @@ out_commit:
 out:
 	if (data_ac)
 		ocfs2_free_alloc_context(data_ac);
-free_pages:
-	kfree(pages);
 	return ret;
 }
 
-- 
GitLab


From 93be0eeea14cf39235e585c8f56df3b3859deaad Mon Sep 17 00:00:00 2001
From: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Date: Mon, 18 Oct 2021 15:15:42 -0700
Subject: [PATCH 0462/4878] ocfs2: mount fails with buffer overflow in strlen

commit b15fa9224e6e1239414525d8d556d824701849fc upstream.

Starting with kernel 5.11 built with CONFIG_FORTIFY_SOURCE mouting an
ocfs2 filesystem with either o2cb or pcmk cluster stack fails with the
trace below.  Problem seems to be that strings for cluster stack and
cluster name are not guaranteed to be null terminated in the disk
representation, while strlcpy assumes that the source string is always
null terminated.  This causes a read outside of the source string
triggering the buffer overflow detection.

  detected buffer overflow in strlen
  ------------[ cut here ]------------
  kernel BUG at lib/string.c:1149!
  invalid opcode: 0000 [#1] SMP PTI
  CPU: 1 PID: 910 Comm: mount.ocfs2 Not tainted 5.14.0-1-amd64 #1
    Debian 5.14.6-2
  RIP: 0010:fortify_panic+0xf/0x11
  ...
  Call Trace:
   ocfs2_initialize_super.isra.0.cold+0xc/0x18 [ocfs2]
   ocfs2_fill_super+0x359/0x19b0 [ocfs2]
   mount_bdev+0x185/0x1b0
   legacy_get_tree+0x27/0x40
   vfs_get_tree+0x25/0xb0
   path_mount+0x454/0xa20
   __x64_sys_mount+0x103/0x140
   do_syscall_64+0x3b/0xc0
   entry_SYSCALL_64_after_hwframe+0x44/0xae

Link: https://lkml.kernel.org/r/20210929180654.32460-1-vvidic@valentin-vidic.from.hr
Signed-off-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ocfs2/super.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 2febc76e9de70..435f82892432c 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -2171,11 +2171,17 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	}
 
 	if (ocfs2_clusterinfo_valid(osb)) {
+		/*
+		 * ci_stack and ci_cluster in ocfs2_cluster_info may not be null
+		 * terminated, so make sure no overflow happens here by using
+		 * memcpy. Destination strings will always be null terminated
+		 * because osb is allocated using kzalloc.
+		 */
 		osb->osb_stackflags =
 			OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags;
-		strlcpy(osb->osb_cluster_stack,
+		memcpy(osb->osb_cluster_stack,
 		       OCFS2_RAW_SB(di)->s_cluster_info.ci_stack,
-		       OCFS2_STACK_LABEL_LEN + 1);
+		       OCFS2_STACK_LABEL_LEN);
 		if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) {
 			mlog(ML_ERROR,
 			     "couldn't mount because of an invalid "
@@ -2184,9 +2190,9 @@ static int ocfs2_initialize_super(struct super_block *sb,
 			status = -EINVAL;
 			goto bail;
 		}
-		strlcpy(osb->osb_cluster_name,
+		memcpy(osb->osb_cluster_name,
 			OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster,
-			OCFS2_CLUSTER_NAME_LEN + 1);
+			OCFS2_CLUSTER_NAME_LEN);
 	} else {
 		/* The empty string is identical with classic tools that
 		 * don't know about s_cluster_info. */
-- 
GitLab


From 3cda4bfffd4f755645577aaa9e96a606657b4525 Mon Sep 17 00:00:00 2001
From: Nadav Amit <namit@vmware.com>
Date: Mon, 18 Oct 2021 15:15:25 -0700
Subject: [PATCH 0463/4878] userfaultfd: fix a race between writeprotect and
 exit_mmap()

commit cb185d5f1ebf900f4ae3bf84cee212e6dd035aca upstream.

A race is possible when a process exits, its VMAs are removed by
exit_mmap() and at the same time userfaultfd_writeprotect() is called.

The race was detected by KASAN on a development kernel, but it appears
to be possible on vanilla kernels as well.

Use mmget_not_zero() to prevent the race as done in other userfaultfd
operations.

Link: https://lkml.kernel.org/r/20210921200247.25749-1-namit@vmware.com
Fixes: 63b2d4174c4ad ("userfaultfd: wp: add the writeprotect API to userfaultfd ioctl")
Signed-off-by: Nadav Amit <namit@vmware.com>
Tested-by: Li  Wang <liwang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/userfaultfd.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 17397c7532f12..aef0da5d6f636 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1794,9 +1794,15 @@ static int userfaultfd_writeprotect(struct userfaultfd_ctx *ctx,
 	if (mode_wp && mode_dontwake)
 		return -EINVAL;
 
-	ret = mwriteprotect_range(ctx->mm, uffdio_wp.range.start,
-				  uffdio_wp.range.len, mode_wp,
-				  &ctx->mmap_changing);
+	if (mmget_not_zero(ctx->mm)) {
+		ret = mwriteprotect_range(ctx->mm, uffdio_wp.range.start,
+					  uffdio_wp.range.len, mode_wp,
+					  &ctx->mmap_changing);
+		mmput(ctx->mm);
+	} else {
+		return -ESRCH;
+	}
+
 	if (ret)
 		return ret;
 
-- 
GitLab


From 895ceeff31b1f5e01ac8d5567d48215bbbcf9d97 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Mon, 18 Oct 2021 15:16:09 -0700
Subject: [PATCH 0464/4878] elfcore: correct reference to CONFIG_UML

commit b0e901280d9860a0a35055f220e8e457f300f40a upstream.

Commit 6e7b64b9dd6d ("elfcore: fix building with clang") introduces
special handling for two architectures, ia64 and User Mode Linux.
However, the wrong name, i.e., CONFIG_UM, for the intended Kconfig
symbol for User-Mode Linux was used.

Although the directory for User Mode Linux is ./arch/um; the Kconfig
symbol for this architecture is called CONFIG_UML.

Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs:

  UM
  Referencing files: include/linux/elfcore.h
  Similar symbols: UML, NUMA

Correct the name of the config to the intended one.

[akpm@linux-foundation.org: fix um/x86_64, per Catalin]
  Link: https://lkml.kernel.org/r/20211006181119.2851441-1-catalin.marinas@arm.com
  Link: https://lkml.kernel.org/r/YV6pejGzLy5ppEpt@arm.com

Link: https://lkml.kernel.org/r/20211006082209.417-1-lukas.bulwahn@gmail.com
Fixes: 6e7b64b9dd6d ("elfcore: fix building with clang")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Barret Rhoden <brho@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/elfcore.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index de51c1bef27da..40e93bfa559d1 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -104,7 +104,7 @@ static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_reg
 #endif
 }
 
-#if defined(CONFIG_UM) || defined(CONFIG_IA64)
+#if (defined(CONFIG_UML) && defined(CONFIG_X86_32)) || defined(CONFIG_IA64)
 /*
  * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
  * extra segments containing the gate DSO contents.  Dumping its
-- 
GitLab


From b721500c979b71a9f02eb84ca384082722c62d4e Mon Sep 17 00:00:00 2001
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: Mon, 18 Oct 2021 15:16:12 -0700
Subject: [PATCH 0465/4878] vfs: check fd has read access in
 kernel_read_file_from_fd()

commit 032146cda85566abcd1c4884d9d23e4e30a07e9a upstream.

If we open a file without read access and then pass the fd to a syscall
whose implementation calls kernel_read_file_from_fd(), we get a warning
from __kernel_read():

        if (WARN_ON_ONCE(!(file->f_mode & FMODE_READ)))

This currently affects both finit_module() and kexec_file_load(), but it
could affect other syscalls in the future.

Link: https://lkml.kernel.org/r/20211007220110.600005-1-willy@infradead.org
Fixes: b844f0ecbc56 ("vfs: define kernel_copy_file_from_fd()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/kernel_read_file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/kernel_read_file.c b/fs/kernel_read_file.c
index 90d255fbdd9b3..c84d87f558cb6 100644
--- a/fs/kernel_read_file.c
+++ b/fs/kernel_read_file.c
@@ -178,7 +178,7 @@ int kernel_read_file_from_fd(int fd, loff_t offset, void **buf,
 	struct fd f = fdget(fd);
 	int ret = -EBADF;
 
-	if (!f.file)
+	if (!f.file || !(f.file->f_mode & FMODE_READ))
 		goto out;
 
 	ret = kernel_read_file(f.file, offset, buf, buf_size, file_size, id);
-- 
GitLab


From 6411397b6d7a84eebdbdf2446c4e6f780f7e25b2 Mon Sep 17 00:00:00 2001
From: Brendan Grieve <brendan@grieve.com.au>
Date: Fri, 15 Oct 2021 10:53:35 +0800
Subject: [PATCH 0466/4878] ALSA: usb-audio: Provide quirk for Sennheiser
 GSP670 Headset

commit 3c414eb65c294719a91a746260085363413f91c1 upstream.

As per discussion at: https://github.com/szszoke/sennheiser-gsp670-pulseaudio-profile/issues/13

The GSP670 has 2 playback and 1 recording device that by default are
detected in an incompatible order for alsa. This may have been done to make
it compatible for the console by the manufacturer and only affects the
latest firmware which uses its own ID.

This quirk will resolve this by reordering the channels.

Signed-off-by: Brendan Grieve <brendan@grieve.com.au>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211015025335.196592-1-brendan@grieve.com.au
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/quirks-table.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 7c649cd380493..949c6d129f2a9 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3698,6 +3698,38 @@ AU0828_DEVICE(0x2040, 0x7270, "Hauppauge", "HVR-950Q"),
 		}
 	}
 },
+{
+	/*
+	 * Sennheiser GSP670
+	 * Change order of interfaces loaded
+	 */
+	USB_DEVICE(0x1395, 0x0300),
+	.bInterfaceClass = USB_CLASS_PER_INTERFACE,
+	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+		.ifnum = QUIRK_ANY_INTERFACE,
+		.type = QUIRK_COMPOSITE,
+		.data = &(const struct snd_usb_audio_quirk[]) {
+			// Communication
+			{
+				.ifnum = 3,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			// Recording
+			{
+				.ifnum = 4,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			// Main
+			{
+				.ifnum = 1,
+				.type = QUIRK_AUDIO_STANDARD_INTERFACE
+			},
+			{
+				.ifnum = -1
+			}
+		}
+	}
+},
 
 #undef USB_DEVICE_VENDOR_SPEC
 #undef USB_AUDIO_DEVICE
-- 
GitLab


From a2606acf418efaad368b1f49deb21191bc82837d Mon Sep 17 00:00:00 2001
From: Steven Clarkson <sc@lambdal.com>
Date: Thu, 14 Oct 2021 06:35:54 -0700
Subject: [PATCH 0467/4878] ALSA: hda/realtek: Add quirk for Clevo PC50HS

commit aef454b40288158b850aab13e3d2a8c406779401 upstream.

Apply existing PCI quirk to the Clevo PC50HS and related models to fix
audio output on the built in speakers.

Signed-off-by: Steven Clarkson <sc@lambdal.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211014133554.1326741-1-sc@lambdal.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c36239cea474f..f511ae66bc8aa 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2547,6 +2547,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1558, 0x65d2, "Clevo PB51R[CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x65e1, "Clevo PB51[ED][DF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x65e5, "Clevo PC50D[PRS](?:-D|-G)?", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
+	SND_PCI_QUIRK(0x1558, 0x65f1, "Clevo PC50HS", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x67d1, "Clevo PB71[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x67e1, "Clevo PB71[DE][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x67e5, "Clevo PC70D[PRS](?:-D|-G)?", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
-- 
GitLab


From 0d867a359979b368f8f00de48893d46a43440736 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Oct 2021 16:17:12 +0200
Subject: [PATCH 0468/4878] ASoC: DAPM: Fix missing kctl change notifications

commit 5af82c81b2c49cfb1cad84d9eb6eab0e3d1c4842 upstream.

The put callback of a kcontrol is supposed to return 1 when the value
is changed, and this will be notified to user-space.  However, some
DAPM kcontrols always return 0 (except for errors), hence the
user-space misses the update of a control value.

This patch corrects the behavior by properly returning 1 when the
value gets updated.

Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211006141712.2439-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-dapm.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index f4b380d6aecf8..08960167d34f5 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2559,6 +2559,7 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
 				const char *pin, int status)
 {
 	struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
+	int ret = 0;
 
 	dapm_assert_locked(dapm);
 
@@ -2571,13 +2572,14 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
 		dapm_mark_dirty(w, "pin configuration");
 		dapm_widget_invalidate_input_paths(w);
 		dapm_widget_invalidate_output_paths(w);
+		ret = 1;
 	}
 
 	w->connected = status;
 	if (status == 0)
 		w->force = 0;
 
-	return 0;
+	return ret;
 }
 
 /**
@@ -3582,14 +3584,15 @@ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 	const char *pin = (const char *)kcontrol->private_value;
+	int ret;
 
 	if (ucontrol->value.integer.value[0])
-		snd_soc_dapm_enable_pin(&card->dapm, pin);
+		ret = snd_soc_dapm_enable_pin(&card->dapm, pin);
 	else
-		snd_soc_dapm_disable_pin(&card->dapm, pin);
+		ret = snd_soc_dapm_disable_pin(&card->dapm, pin);
 
 	snd_soc_dapm_sync(&card->dapm);
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
 
@@ -4035,7 +4038,7 @@ static int snd_soc_dapm_dai_link_put(struct snd_kcontrol *kcontrol,
 
 	rtd->params_select = ucontrol->value.enumerated.item[0];
 
-	return 0;
+	return 1;
 }
 
 static void
-- 
GitLab


From 16802fa4c33eb1a8efb23f1e93365190e4047d05 Mon Sep 17 00:00:00 2001
From: Gaosheng Cui <cuigaosheng1@huawei.com>
Date: Sat, 16 Oct 2021 15:23:50 +0800
Subject: [PATCH 0469/4878] audit: fix possible null-pointer dereference in
 audit_filter_rules

commit 6e3ee990c90494561921c756481d0e2125d8b895 upstream.

Fix  possible null-pointer dereference in audit_filter_rules.

audit_filter_rules() error: we previously assumed 'ctx' could be null

Cc: stable@vger.kernel.org
Fixes: bf361231c295 ("audit: add saddr_fam filter field")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/auditsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 8dba8f0983b5c..638f424859edc 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -653,7 +653,7 @@ static int audit_filter_rules(struct task_struct *tsk,
 			result = audit_comparator(audit_loginuid_set(tsk), f->op, f->val);
 			break;
 		case AUDIT_SADDR_FAM:
-			if (ctx->sockaddr)
+			if (ctx && ctx->sockaddr)
 				result = audit_comparator(ctx->sockaddr->ss_family,
 							  f->op, f->val);
 			break;
-- 
GitLab


From 3e16d9d525a7a62c40655b2747be35b674fd4dc5 Mon Sep 17 00:00:00 2001
From: DENG Qingfang <dqfext@gmail.com>
Date: Sat, 16 Oct 2021 14:24:14 +0800
Subject: [PATCH 0470/4878] net: dsa: mt7530: correct ds->num_ports

commit 342afce10d6f61c443c95e244f812d4766f73f53 upstream.

Setting ds->num_ports to DSA_MAX_PORTS made DSA core allocate unnecessary
dsa_port's and call mt7530_port_disable for non-existent ports.

Set it to MT7530_NUM_PORTS to fix that, and dsa_is_user_port check in
port_enable/disable is no longer required.

Cc: stable@vger.kernel.org
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/mt7530.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 73de09093c350..1f642fdbf214c 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -981,9 +981,6 @@ mt7530_port_enable(struct dsa_switch *ds, int port,
 {
 	struct mt7530_priv *priv = ds->priv;
 
-	if (!dsa_is_user_port(ds, port))
-		return 0;
-
 	mutex_lock(&priv->reg_mutex);
 
 	/* Allow the user port gets connected to the cpu port and also
@@ -1006,9 +1003,6 @@ mt7530_port_disable(struct dsa_switch *ds, int port)
 {
 	struct mt7530_priv *priv = ds->priv;
 
-	if (!dsa_is_user_port(ds, port))
-		return;
-
 	mutex_lock(&priv->reg_mutex);
 
 	/* Clear up all port matrix which could be restored in the next
@@ -2593,7 +2587,7 @@ mt7530_probe(struct mdio_device *mdiodev)
 		return -ENOMEM;
 
 	priv->ds->dev = &mdiodev->dev;
-	priv->ds->num_ports = DSA_MAX_PORTS;
+	priv->ds->num_ports = MT7530_NUM_PORTS;
 
 	/* Use medatek,mcm property to distinguish hardware type that would
 	 * casues a little bit differences on power-on sequence.
-- 
GitLab


From 9258f58432c5e83494cf5887a6bf59b6055b612c Mon Sep 17 00:00:00 2001
From: "Christopher M. Riedl" <cmr@codefail.de>
Date: Sat, 6 Feb 2021 01:23:42 -0600
Subject: [PATCH 0471/4878] powerpc64/idle: Fix SP offsets when saving GPRs

commit 73287caa9210ded6066833195f4335f7f688a46b upstream.

The idle entry/exit code saves/restores GPRs in the stack "red zone"
(Protected Zone according to PowerPC64 ELF ABI v2). However, the offset
used for the first GPR is incorrect and overwrites the back chain - the
Protected Zone actually starts below the current SP. In practice this is
probably not an issue, but it's still incorrect so fix it.

Also expand the comments to explain why using the stack "red zone"
instead of creating a new stackframe is appropriate here.

Signed-off-by: Christopher M. Riedl <cmr@codefail.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210206072342.5067-1-cmr@codefail.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/idle_book3s.S | 138 ++++++++++++++++--------------
 1 file changed, 73 insertions(+), 65 deletions(-)

diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index 22f249b6f58de..f9e6d83e67207 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -52,28 +52,32 @@ _GLOBAL(isa300_idle_stop_mayloss)
 	std	r1,PACAR1(r13)
 	mflr	r4
 	mfcr	r5
-	/* use stack red zone rather than a new frame for saving regs */
-	std	r2,-8*0(r1)
-	std	r14,-8*1(r1)
-	std	r15,-8*2(r1)
-	std	r16,-8*3(r1)
-	std	r17,-8*4(r1)
-	std	r18,-8*5(r1)
-	std	r19,-8*6(r1)
-	std	r20,-8*7(r1)
-	std	r21,-8*8(r1)
-	std	r22,-8*9(r1)
-	std	r23,-8*10(r1)
-	std	r24,-8*11(r1)
-	std	r25,-8*12(r1)
-	std	r26,-8*13(r1)
-	std	r27,-8*14(r1)
-	std	r28,-8*15(r1)
-	std	r29,-8*16(r1)
-	std	r30,-8*17(r1)
-	std	r31,-8*18(r1)
-	std	r4,-8*19(r1)
-	std	r5,-8*20(r1)
+	/*
+	 * Use the stack red zone rather than a new frame for saving regs since
+	 * in the case of no GPR loss the wakeup code branches directly back to
+	 * the caller without deallocating the stack frame first.
+	 */
+	std	r2,-8*1(r1)
+	std	r14,-8*2(r1)
+	std	r15,-8*3(r1)
+	std	r16,-8*4(r1)
+	std	r17,-8*5(r1)
+	std	r18,-8*6(r1)
+	std	r19,-8*7(r1)
+	std	r20,-8*8(r1)
+	std	r21,-8*9(r1)
+	std	r22,-8*10(r1)
+	std	r23,-8*11(r1)
+	std	r24,-8*12(r1)
+	std	r25,-8*13(r1)
+	std	r26,-8*14(r1)
+	std	r27,-8*15(r1)
+	std	r28,-8*16(r1)
+	std	r29,-8*17(r1)
+	std	r30,-8*18(r1)
+	std	r31,-8*19(r1)
+	std	r4,-8*20(r1)
+	std	r5,-8*21(r1)
 	/* 168 bytes */
 	PPC_STOP
 	b	.	/* catch bugs */
@@ -89,8 +93,8 @@ _GLOBAL(isa300_idle_stop_mayloss)
  */
 _GLOBAL(idle_return_gpr_loss)
 	ld	r1,PACAR1(r13)
-	ld	r4,-8*19(r1)
-	ld	r5,-8*20(r1)
+	ld	r4,-8*20(r1)
+	ld	r5,-8*21(r1)
 	mtlr	r4
 	mtcr	r5
 	/*
@@ -98,25 +102,25 @@ _GLOBAL(idle_return_gpr_loss)
 	 * from PACATOC. This could be avoided for that less common case
 	 * if KVM saved its r2.
 	 */
-	ld	r2,-8*0(r1)
-	ld	r14,-8*1(r1)
-	ld	r15,-8*2(r1)
-	ld	r16,-8*3(r1)
-	ld	r17,-8*4(r1)
-	ld	r18,-8*5(r1)
-	ld	r19,-8*6(r1)
-	ld	r20,-8*7(r1)
-	ld	r21,-8*8(r1)
-	ld	r22,-8*9(r1)
-	ld	r23,-8*10(r1)
-	ld	r24,-8*11(r1)
-	ld	r25,-8*12(r1)
-	ld	r26,-8*13(r1)
-	ld	r27,-8*14(r1)
-	ld	r28,-8*15(r1)
-	ld	r29,-8*16(r1)
-	ld	r30,-8*17(r1)
-	ld	r31,-8*18(r1)
+	ld	r2,-8*1(r1)
+	ld	r14,-8*2(r1)
+	ld	r15,-8*3(r1)
+	ld	r16,-8*4(r1)
+	ld	r17,-8*5(r1)
+	ld	r18,-8*6(r1)
+	ld	r19,-8*7(r1)
+	ld	r20,-8*8(r1)
+	ld	r21,-8*9(r1)
+	ld	r22,-8*10(r1)
+	ld	r23,-8*11(r1)
+	ld	r24,-8*12(r1)
+	ld	r25,-8*13(r1)
+	ld	r26,-8*14(r1)
+	ld	r27,-8*15(r1)
+	ld	r28,-8*16(r1)
+	ld	r29,-8*17(r1)
+	ld	r30,-8*18(r1)
+	ld	r31,-8*19(r1)
 	blr
 
 /*
@@ -154,28 +158,32 @@ _GLOBAL(isa206_idle_insn_mayloss)
 	std	r1,PACAR1(r13)
 	mflr	r4
 	mfcr	r5
-	/* use stack red zone rather than a new frame for saving regs */
-	std	r2,-8*0(r1)
-	std	r14,-8*1(r1)
-	std	r15,-8*2(r1)
-	std	r16,-8*3(r1)
-	std	r17,-8*4(r1)
-	std	r18,-8*5(r1)
-	std	r19,-8*6(r1)
-	std	r20,-8*7(r1)
-	std	r21,-8*8(r1)
-	std	r22,-8*9(r1)
-	std	r23,-8*10(r1)
-	std	r24,-8*11(r1)
-	std	r25,-8*12(r1)
-	std	r26,-8*13(r1)
-	std	r27,-8*14(r1)
-	std	r28,-8*15(r1)
-	std	r29,-8*16(r1)
-	std	r30,-8*17(r1)
-	std	r31,-8*18(r1)
-	std	r4,-8*19(r1)
-	std	r5,-8*20(r1)
+	/*
+	 * Use the stack red zone rather than a new frame for saving regs since
+	 * in the case of no GPR loss the wakeup code branches directly back to
+	 * the caller without deallocating the stack frame first.
+	 */
+	std	r2,-8*1(r1)
+	std	r14,-8*2(r1)
+	std	r15,-8*3(r1)
+	std	r16,-8*4(r1)
+	std	r17,-8*5(r1)
+	std	r18,-8*6(r1)
+	std	r19,-8*7(r1)
+	std	r20,-8*8(r1)
+	std	r21,-8*9(r1)
+	std	r22,-8*10(r1)
+	std	r23,-8*11(r1)
+	std	r24,-8*12(r1)
+	std	r25,-8*13(r1)
+	std	r26,-8*14(r1)
+	std	r27,-8*15(r1)
+	std	r28,-8*16(r1)
+	std	r29,-8*17(r1)
+	std	r30,-8*18(r1)
+	std	r31,-8*19(r1)
+	std	r4,-8*20(r1)
+	std	r5,-8*21(r1)
 	cmpwi	r3,PNV_THREAD_NAP
 	bne	1f
 	IDLE_STATE_ENTER_SEQ_NORET(PPC_NAP)
-- 
GitLab


From fbd724c49bead048ae9fc1a5b7bff2fb3e54f855 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 15 Oct 2021 23:01:48 +1100
Subject: [PATCH 0472/4878] KVM: PPC: Book3S HV: Fix stack handling in
 idle_kvm_start_guest()

commit 9b4416c5095c20e110c82ae602c254099b83b72f upstream.

In commit 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in
C") kvm_start_guest() became idle_kvm_start_guest(). The old code
allocated a stack frame on the emergency stack, but didn't use the
frame to store anything, and also didn't store anything in its caller's
frame.

idle_kvm_start_guest() on the other hand is written more like a normal C
function, it creates a frame on entry, and also stores CR/LR into its
callers frame (per the ABI). The problem is that there is no caller
frame on the emergency stack.

The emergency stack for a given CPU is allocated with:

  paca_ptrs[i]->emergency_sp = alloc_stack(limit, i) + THREAD_SIZE;

So emergency_sp actually points to the first address above the emergency
stack allocation for a given CPU, we must not store above it without
first decrementing it to create a frame. This is different to the
regular kernel stack, paca->kstack, which is initialised to point at an
initial frame that is ready to use.

idle_kvm_start_guest() stores the backchain, CR and LR all of which
write outside the allocation for the emergency stack. It then creates a
stack frame and saves the non-volatile registers. Unfortunately the
frame it creates is not large enough to fit the non-volatiles, and so
the saving of the non-volatile registers also writes outside the
emergency stack allocation.

The end result is that we corrupt whatever is at 0-24 bytes, and 112-248
bytes above the emergency stack allocation.

In practice this has gone unnoticed because the memory immediately above
the emergency stack happens to be used for other stack allocations,
either another CPUs mc_emergency_sp or an IRQ stack. See the order of
calls to irqstack_early_init() and emergency_stack_init().

The low addresses of another stack are the top of that stack, and so are
only used if that stack is under extreme pressue, which essentially
never happens in practice - and if it did there's a high likelyhood we'd
crash due to that stack overflowing.

Still, we shouldn't be corrupting someone else's stack, and it is purely
luck that we aren't corrupting something else.

To fix it we save CR/LR into the caller's frame using the existing r1 on
entry, we then create a SWITCH_FRAME_SIZE frame (which has space for
pt_regs) on the emergency stack with the backchain pointing to the
existing stack, and then finally we switch to the new frame on the
emergency stack.

Fixes: 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211015133929.832061-1-mpe@ellerman.id.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 5777b72bb8b62..bde26d8ef3416 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -292,13 +292,15 @@ kvm_novcpu_exit:
  * r3 contains the SRR1 wakeup value, SRR1 is trashed.
  */
 _GLOBAL(idle_kvm_start_guest)
-	ld	r4,PACAEMERGSP(r13)
 	mfcr	r5
 	mflr	r0
-	std	r1,0(r4)
-	std	r5,8(r4)
-	std	r0,16(r4)
-	subi	r1,r4,STACK_FRAME_OVERHEAD
+	std	r5, 8(r1)	// Save CR in caller's frame
+	std	r0, 16(r1)	// Save LR in caller's frame
+	// Create frame on emergency stack
+	ld	r4, PACAEMERGSP(r13)
+	stdu	r1, -SWITCH_FRAME_SIZE(r4)
+	// Switch to new frame on emergency stack
+	mr	r1, r4
 	SAVE_NVGPRS(r1)
 
 	/*
@@ -444,10 +446,9 @@ kvm_no_guest:
 	/* set up r3 for return */
 	mfspr	r3,SPRN_SRR1
 	REST_NVGPRS(r1)
-	addi	r1, r1, STACK_FRAME_OVERHEAD
-	ld	r0, 16(r1)
-	ld	r5, 8(r1)
-	ld	r1, 0(r1)
+	ld	r1, 0(r1)	// Switch back to caller stack
+	ld	r0, 16(r1)	// Reload LR
+	ld	r5, 8(r1)	// Reload CR
 	mtlr	r0
 	mtcr	r5
 	blr
-- 
GitLab


From 197ec50b2df12dbfb17929eda643b16117b6f0ca Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 15 Oct 2021 23:02:08 +1100
Subject: [PATCH 0473/4878] KVM: PPC: Book3S HV: Make idle_kvm_start_guest()
 return 0 if it went to guest

commit cdeb5d7d890e14f3b70e8087e745c4a6a7d9f337 upstream.

We call idle_kvm_start_guest() from power7_offline() if the thread has
been requested to enter KVM. We pass it the SRR1 value that was returned
from power7_idle_insn() which tells us what sort of wakeup we're
processing.

Depending on the SRR1 value we pass in, the KVM code might enter the
guest, or it might return to us to do some host action if the wakeup
requires it.

If idle_kvm_start_guest() is able to handle the wakeup, and enter the
guest it is supposed to indicate that by returning a zero SRR1 value to
us.

That was the behaviour prior to commit 10d91611f426 ("powerpc/64s:
Reimplement book3s idle code in C"), however in that commit the
handling of SRR1 was reworked, and the zeroing behaviour was lost.

Returning from idle_kvm_start_guest() without zeroing the SRR1 value can
confuse the host offline code, causing the guest to crash and other
weirdness.

Fixes: 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211015133929.832061-2-mpe@ellerman.id.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index bde26d8ef3416..db78123166a8b 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -301,6 +301,7 @@ _GLOBAL(idle_kvm_start_guest)
 	stdu	r1, -SWITCH_FRAME_SIZE(r4)
 	// Switch to new frame on emergency stack
 	mr	r1, r4
+	std	r3, 32(r1)	// Save SRR1 wakeup value
 	SAVE_NVGPRS(r1)
 
 	/*
@@ -352,6 +353,10 @@ kvm_unsplit_wakeup:
 
 kvm_secondary_got_guest:
 
+	// About to go to guest, clear saved SRR1
+	li	r0, 0
+	std	r0, 32(r1)
+
 	/* Set HSTATE_DSCR(r13) to something sensible */
 	ld	r6, PACA_DSCR_DEFAULT(r13)
 	std	r6, HSTATE_DSCR(r13)
@@ -443,8 +448,8 @@ kvm_no_guest:
 	mfspr	r4, SPRN_LPCR
 	rlwimi	r4, r3, 0, LPCR_PECE0 | LPCR_PECE1
 	mtspr	SPRN_LPCR, r4
-	/* set up r3 for return */
-	mfspr	r3,SPRN_SRR1
+	// Return SRR1 wakeup value, or 0 if we went into the guest
+	ld	r3, 32(r1)
 	REST_NVGPRS(r1)
 	ld	r1, 0(r1)	// Switch back to caller stack
 	ld	r0, 16(r1)	// Reload LR
-- 
GitLab


From c5c2a80368e97ac179d6a101c99f1e1f36146ec2 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Wed, 20 Oct 2021 20:48:26 +1100
Subject: [PATCH 0474/4878] powerpc/idle: Don't corrupt back chain when going
 idle

commit 496c5fe25c377ddb7815c4ce8ecfb676f051e9b6 upstream.

In isa206_idle_insn_mayloss() we store various registers into the stack
red zone, which is allowed.

However inside the IDLE_STATE_ENTER_SEQ_NORET macro we save r2 again,
to 0(r1), which corrupts the stack back chain.

We used to do the same in isa206_idle_insn_mayloss() itself, but we
fixed that in 73287caa9210 ("powerpc64/idle: Fix SP offsets when saving
GPRs"), however we missed that the macro also corrupts the back chain.

Corrupting the back chain is bad for debuggability but doesn't
necessarily cause a bug.

However we recently changed the stack handling in some KVM code, and it
now relies on the stack back chain being valid when it returns. The
corruption causes that code to return with r1 pointing somewhere in
kernel data, at some point LR is restored from the stack and we branch
to NULL or somewhere else invalid.

Only affects Power8 hosts running KVM guests, with dynamic_mt_modes
enabled (which it is by default).

The fixes tag below points to the commit that changed the KVM stack
handling, exposing this bug. The actual corruption of the back chain has
always existed since 948cf67c4726 ("powerpc: Add NAP mode support on
Power7 in HV mode").

Fixes: 9b4416c5095c ("KVM: PPC: Book3S HV: Fix stack handling in idle_kvm_start_guest()")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211020094826.3222052-1-mpe@ellerman.id.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/idle_book3s.S | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index f9e6d83e67207..b16aecaaa9126 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -126,14 +126,16 @@ _GLOBAL(idle_return_gpr_loss)
 /*
  * This is the sequence required to execute idle instructions, as
  * specified in ISA v2.07 (and earlier). MSR[IR] and MSR[DR] must be 0.
- *
- * The 0(r1) slot is used to save r2 in isa206, so use that here.
+ * We have to store a GPR somewhere, ptesync, then reload it, and create
+ * a false dependency on the result of the load. It doesn't matter which
+ * GPR we store, or where we store it. We have already stored r2 to the
+ * stack at -8(r1) in isa206_idle_insn_mayloss, so use that.
  */
 #define IDLE_STATE_ENTER_SEQ_NORET(IDLE_INST)			\
 	/* Magic NAP/SLEEP/WINKLE mode enter sequence */	\
-	std	r2,0(r1);					\
+	std	r2,-8(r1);					\
 	ptesync;						\
-	ld	r2,0(r1);					\
+	ld	r2,-8(r1);					\
 236:	cmpd	cr0,r2,r2;					\
 	bne	236b;						\
 	IDLE_INST;						\
-- 
GitLab


From 48843dd23c7bfcb0f0c3a02926d660f939dc2b9f Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Mon, 18 Oct 2021 15:15:55 -0700
Subject: [PATCH 0475/4878] mm, slub: fix mismatch between reconstructed
 freelist depth and cnt

commit 899447f669da76cc3605665e1a95ee877bc464cc upstream.

If object's reuse is delayed, it will be excluded from the reconstructed
freelist.  But we forgot to adjust the cnt accordingly.  So there will
be a mismatch between reconstructed freelist depth and cnt.  This will
lead to free_debug_processing() complaining about freelist count or a
incorrect slub inuse count.

Link: https://lkml.kernel.org/r/20210916123920.48704-3-linmiaohe@huawei.com
Fixes: c3895391df38 ("kasan, slub: fix handling of kasan_slab_free hook")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/slub.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index f5fc44208bdc3..8ea137ca32796 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1543,7 +1543,8 @@ static __always_inline bool slab_free_hook(struct kmem_cache *s, void *x)
 }
 
 static inline bool slab_free_freelist_hook(struct kmem_cache *s,
-					   void **head, void **tail)
+					   void **head, void **tail,
+					   int *cnt)
 {
 
 	void *object;
@@ -1578,6 +1579,12 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
 			*head = object;
 			if (!*tail)
 				*tail = object;
+		} else {
+			/*
+			 * Adjust the reconstructed freelist depth
+			 * accordingly if object's reuse is delayed.
+			 */
+			--(*cnt);
 		}
 	} while (object != old_tail);
 
@@ -3137,7 +3144,7 @@ static __always_inline void slab_free(struct kmem_cache *s, struct page *page,
 	 * With KASAN enabled slab_free_freelist_hook modifies the freelist
 	 * to remove objects, whose reuse must be delayed.
 	 */
-	if (slab_free_freelist_hook(s, &head, &tail))
+	if (slab_free_freelist_hook(s, &head, &tail, &cnt))
 		do_slab_free(s, page, head, tail, cnt, addr);
 }
 
-- 
GitLab


From 568f906340b43120abd6fcc67c37396482f85930 Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Mon, 18 Oct 2021 15:15:59 -0700
Subject: [PATCH 0476/4878] mm, slub: fix potential memoryleak in
 kmem_cache_open()

commit 9037c57681d25e4dcc442d940d6dbe24dd31f461 upstream.

In error path, the random_seq of slub cache might be leaked.  Fix this
by using __kmem_cache_release() to release all the relevant resources.

Link: https://lkml.kernel.org/r/20210916123920.48704-4-linmiaohe@huawei.com
Fixes: 210e7a43fa90 ("mm: SLUB freelist randomization")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/slub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index 8ea137ca32796..8470c428b51f1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3832,8 +3832,8 @@ static int kmem_cache_open(struct kmem_cache *s, slab_flags_t flags)
 	if (alloc_kmem_cache_cpus(s))
 		return 0;
 
-	free_kmem_cache_nodes(s);
 error:
+	__kmem_cache_release(s);
 	return -EINVAL;
 }
 
-- 
GitLab


From b41fd8f5d2ade45cb8b3e745705a0922e43a019a Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Mon, 18 Oct 2021 15:16:06 -0700
Subject: [PATCH 0477/4878] mm, slub: fix incorrect memcg slab count for bulk
 free

commit 3ddd60268c24bcac9d744404cc277e9dc52fe6b6 upstream.

kmem_cache_free_bulk() will call memcg_slab_free_hook() for all objects
when doing bulk free.  So we shouldn't call memcg_slab_free_hook() again
for bulk free to avoid incorrect memcg slab count.

Link: https://lkml.kernel.org/r/20210916123920.48704-6-linmiaohe@huawei.com
Fixes: d1b2cf6cb84a ("mm: memcg/slab: uncharge during kmem_cache_free_bulk()")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/slub.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index 8470c428b51f1..1384dc9068337 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3100,7 +3100,9 @@ static __always_inline void do_slab_free(struct kmem_cache *s,
 	struct kmem_cache_cpu *c;
 	unsigned long tid;
 
-	memcg_slab_free_hook(s, &head, 1);
+	/* memcg_slab_free_hook() is already called for bulk free. */
+	if (!tail)
+		memcg_slab_free_hook(s, &head, 1);
 redo:
 	/*
 	 * Determine the currently cpus per cpu slab.
-- 
GitLab


From 8f042315fcc46b7fc048ba7d7a3e136927e384d4 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 20 Oct 2021 06:22:59 -0400
Subject: [PATCH 0478/4878] KVM: nVMX: promptly process interrupts delivered
 while in guest mode

commit 3a25dfa67fe40f3a2690af2c562e0947a78bd6a0 upstream.

Since commit c300ab9f08df ("KVM: x86: Replace late check_nested_events() hack with
more precise fix") there is no longer the certainty that check_nested_events()
tries to inject an external interrupt vmexit to L1 on every call to vcpu_enter_guest.
Therefore, even in that case we need to set KVM_REQ_EVENT.  This ensures
that inject_pending_event() is called, and from there kvm_check_nested_events().

Fixes: c300ab9f08df ("KVM: x86: Replace late check_nested_events() hack with more precise fix")
Cc: stable@vger.kernel.org
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/vmx.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index e0dba0037a85f..f77d98973782b 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -6316,18 +6316,13 @@ static int vmx_sync_pir_to_irr(struct kvm_vcpu *vcpu)
 
 		/*
 		 * If we are running L2 and L1 has a new pending interrupt
-		 * which can be injected, we should re-evaluate
-		 * what should be done with this new L1 interrupt.
-		 * If L1 intercepts external-interrupts, we should
-		 * exit from L2 to L1. Otherwise, interrupt should be
-		 * delivered directly to L2.
+		 * which can be injected, this may cause a vmexit or it may
+		 * be injected into L2.  Either way, this interrupt will be
+		 * processed via KVM_REQ_EVENT, not RVI, because we do not use
+		 * virtual interrupt delivery to inject L1 interrupts into L2.
 		 */
-		if (is_guest_mode(vcpu) && max_irr_updated) {
-			if (nested_exit_on_intr(vcpu))
-				kvm_vcpu_exiting_guest_mode(vcpu);
-			else
-				kvm_make_request(KVM_REQ_EVENT, vcpu);
-		}
+		if (is_guest_mode(vcpu) && max_irr_updated)
+			kvm_make_request(KVM_REQ_EVENT, vcpu);
 	} else {
 		max_irr = kvm_lapic_find_highest_irr(vcpu);
 	}
-- 
GitLab


From 77c0ef979e32b8bc22f36a013bab77cd37e31530 Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Thu, 7 Oct 2021 19:44:30 +0200
Subject: [PATCH 0479/4878] nfc: nci: fix the UAF of rf_conn_info object

commit 1b1499a817c90fd1ce9453a2c98d2a01cca0e775 upstream.

The nci_core_conn_close_rsp_packet() function will release the conn_info
with given conn_id. However, it needs to set the rf_conn_info to NULL to
prevent other routines like nci_rf_intf_activated_ntf_packet() to trigger
the UAF.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/nci/rsp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index a48297b79f34f..b0ed2b47ac437 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -277,6 +277,8 @@ static void nci_core_conn_close_rsp_packet(struct nci_dev *ndev,
 							 ndev->cur_conn_id);
 		if (conn_info) {
 			list_del(&conn_info->list);
+			if (conn_info == ndev->rf_conn_info)
+				ndev->rf_conn_info = NULL;
 			devm_kfree(&ndev->nfc_dev->dev, conn_info);
 		}
 	}
-- 
GitLab


From 7f221ccbee4ec662e2292d490a43ce6c314c4594 Mon Sep 17 00:00:00 2001
From: Xiaolong Huang <butterflyhuangxx@gmail.com>
Date: Fri, 8 Oct 2021 14:58:30 +0800
Subject: [PATCH 0480/4878] isdn: cpai: check ctr->cnr to avoid array index out
 of bound

commit 1f3e2e97c003f80c4b087092b225c8787ff91e4d upstream.

The cmtp_add_connection() would add a cmtp session to a controller
and run a kernel thread to process cmtp.

	__module_get(THIS_MODULE);
	session->task = kthread_run(cmtp_session, session, "kcmtpd_ctr_%d",
								session->num);

During this process, the kernel thread would call detach_capi_ctr()
to detach a register controller. if the controller
was not attached yet, detach_capi_ctr() would
trigger an array-index-out-bounds bug.

[   46.866069][ T6479] UBSAN: array-index-out-of-bounds in
drivers/isdn/capi/kcapi.c:483:21
[   46.867196][ T6479] index -1 is out of range for type 'capi_ctr *[32]'
[   46.867982][ T6479] CPU: 1 PID: 6479 Comm: kcmtpd_ctr_0 Not tainted
5.15.0-rc2+ #8
[   46.869002][ T6479] Hardware name: QEMU Standard PC (i440FX + PIIX,
1996), BIOS 1.14.0-2 04/01/2014
[   46.870107][ T6479] Call Trace:
[   46.870473][ T6479]  dump_stack_lvl+0x57/0x7d
[   46.870974][ T6479]  ubsan_epilogue+0x5/0x40
[   46.871458][ T6479]  __ubsan_handle_out_of_bounds.cold+0x43/0x48
[   46.872135][ T6479]  detach_capi_ctr+0x64/0xc0
[   46.872639][ T6479]  cmtp_session+0x5c8/0x5d0
[   46.873131][ T6479]  ? __init_waitqueue_head+0x60/0x60
[   46.873712][ T6479]  ? cmtp_add_msgpart+0x120/0x120
[   46.874256][ T6479]  kthread+0x147/0x170
[   46.874709][ T6479]  ? set_kthread_struct+0x40/0x40
[   46.875248][ T6479]  ret_from_fork+0x1f/0x30
[   46.875773][ T6479]

Signed-off-by: Xiaolong Huang <butterflyhuangxx@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211008065830.305057-1-butterflyhuangxx@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/isdn/capi/kcapi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index cb0afe8971623..7313454e403a6 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -480,6 +480,11 @@ int detach_capi_ctr(struct capi_ctr *ctr)
 
 	ctr_down(ctr, CAPI_CTR_DETACHED);
 
+	if (ctr->cnr < 1 || ctr->cnr - 1 >= CAPI_MAXCONTR) {
+		err = -EINVAL;
+		goto unlock_out;
+	}
+
 	if (capi_controller[ctr->cnr - 1] != ctr) {
 		err = -EINVAL;
 		goto unlock_out;
-- 
GitLab


From f8a6541345c2d384c1343a2990e16e4c696f47a1 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@gmail.com>
Date: Tue, 5 Oct 2021 22:54:54 +0200
Subject: [PATCH 0481/4878] netfilter: Kconfig: use 'default y' instead of 'm'
 for bool config option

commit 77076934afdcd46516caf18ed88b2f88025c9ddb upstream.

This option, NF_CONNTRACK_SECMARK, is a bool, so it can never be 'm'.

Fixes: 33b8e77605620 ("[NETFILTER]: Add CONFIG_NETFILTER_ADVANCED option")
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 52370211e46bf..6bafd3876aff3 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -94,7 +94,7 @@ config NF_CONNTRACK_MARK
 config NF_CONNTRACK_SECMARK
 	bool  'Connection tracking security mark support'
 	depends on NETWORK_SECMARK
-	default m if NETFILTER_ADVANCED=n
+	default y if NETFILTER_ADVANCED=n
 	help
 	  This option enables security markings to be applied to
 	  connections.  Typically they are copied to connections from
-- 
GitLab


From 0e033cb40761e50b9ed437397898cccad40def0b Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Tue, 12 Oct 2021 18:37:09 +0200
Subject: [PATCH 0482/4878] selftests: netfilter: remove stray bash debug line

commit 3e6ed7703dae6838c104d73d3e76e9b79f5c0528 upstream.

This should not be there.

Fixes: 2de03b45236f ("selftests: netfilter: add flowtable test script")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/netfilter/nft_flowtable.sh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/testing/selftests/netfilter/nft_flowtable.sh b/tools/testing/selftests/netfilter/nft_flowtable.sh
index 431296c0f91cf..aefe50e0e4a85 100755
--- a/tools/testing/selftests/netfilter/nft_flowtable.sh
+++ b/tools/testing/selftests/netfilter/nft_flowtable.sh
@@ -199,7 +199,6 @@ fi
 # test basic connectivity
 if ! ip netns exec ns1 ping -c 1 -q 10.0.2.99 > /dev/null; then
   echo "ERROR: ns1 cannot reach ns2" 1>&2
-  bash
   exit 1
 fi
 
-- 
GitLab


From 96835b68d7b39df9b25d5a08a2ffa9cb2562cffa Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@nvidia.com>
Date: Fri, 15 Oct 2021 12:05:46 +0300
Subject: [PATCH 0483/4878] net: bridge: mcast: use
 multicast_membership_interval for IGMPv3

commit fac3cb82a54a4b7c49c932f96ef196cf5774344c upstream.

When I added IGMPv3 support I decided to follow the RFC for computing
the GMI dynamically:
" 8.4. Group Membership Interval

   The Group Membership Interval is the amount of time that must pass
   before a multicast router decides there are no more members of a
   group or a particular source on a network.

   This value MUST be ((the Robustness Variable) times (the Query
   Interval)) plus (one Query Response Interval)."

But that actually is inconsistent with how the bridge used to compute it
for IGMPv2, where it was user-configurable that has a correct default value
but it is up to user-space to maintain it. This would make it consistent
with the other timer values which are also maintained correct by the user
instead of being dynamically computed. It also changes back to the previous
user-expected GMI behaviour for IGMPv3 queries which were supported before
IGMPv3 was added. Note that to properly compute it dynamically we would
need to add support for "Robustness Variable" which is currently missing.

Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Fixes: 0436862e417e ("net: bridge: mcast: support for IGMPv3/MLDv2 ALLOW_NEW_SOURCES report")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bridge/br_private.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 5e5726048a1af..2b88b17cc8b25 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -931,9 +931,7 @@ static inline unsigned long br_multicast_lmqt(const struct net_bridge *br)
 
 static inline unsigned long br_multicast_gmi(const struct net_bridge *br)
 {
-	/* use the RFC default of 2 for QRV */
-	return 2 * br->multicast_query_interval +
-	       br->multicast_query_response_interval;
+	return br->multicast_membership_interval;
 }
 #else
 static inline int br_multicast_rcv(struct net_bridge *br,
-- 
GitLab


From f40c2281d2c0674d32ba732fee45222d76495472 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Sat, 16 Oct 2021 23:04:46 +0200
Subject: [PATCH 0484/4878] drm: mxsfb: Fix NULL pointer dereference crash on
 unload

commit 3cfc183052c3dbf8eae57b6c1685dab00ed3db4a upstream.

The mxsfb->crtc.funcs may already be NULL when unloading the driver,
in which case calling mxsfb_irq_disable() via drm_irq_uninstall() from
mxsfb_unload() leads to NULL pointer dereference.

Since all we care about is masking the IRQ and mxsfb->base is still
valid, just use that to clear and mask the IRQ.

Fixes: ae1ed00932819 ("drm: mxsfb: Stop using DRM simple display pipeline helper")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Abrecht <public@danielabrecht.ch>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Stefan Agner <stefan@agner.ch>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211016210446.171616-1-marex@denx.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/mxsfb/mxsfb_drv.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index f31e8ef3c258c..25e422d2e7f8f 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -268,7 +268,11 @@ static void mxsfb_irq_disable(struct drm_device *drm)
 	struct mxsfb_drm_private *mxsfb = drm->dev_private;
 
 	mxsfb_enable_axi_clk(mxsfb);
-	mxsfb->crtc.funcs->disable_vblank(&mxsfb->crtc);
+
+	/* Disable and clear VBLANK IRQ */
+	writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+	writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+
 	mxsfb_disable_axi_clk(mxsfb);
 }
 
-- 
GitLab


From 69078a94365a74cfbf113890ca9cc86ba1d1e5c0 Mon Sep 17 00:00:00 2001
From: Yunsheng Lin <linyunsheng@huawei.com>
Date: Tue, 19 Oct 2021 22:16:31 +0800
Subject: [PATCH 0485/4878] net: hns3: fix the max tx size according to user
 manual

commit adfb7b4966c0c4c63a791f202b8b3837b07a9ece upstream.

Currently the max tx size supported by the hw is calculated by
using the max BD num supported by the hw. According to the hw
user manual, the max tx size is fixed value for both non-TSO and
TSO skb.

This patch updates the max tx size according to the manual.

Fixes: 8ae10cfb5089("net: hns3: support tx-scatter-gather-fraglist feature")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 7 ++-----
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 6 ++----
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index e2790deb6dab0..568ac6b321fa3 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1283,7 +1283,6 @@ void hns3_shinfo_pack(struct skb_shared_info *shinfo, __u32 *size)
 
 static int hns3_skb_linearize(struct hns3_enet_ring *ring,
 			      struct sk_buff *skb,
-			      u8 max_non_tso_bd_num,
 			      unsigned int bd_num)
 {
 	/* 'bd_num == UINT_MAX' means the skb' fraglist has a
@@ -1300,8 +1299,7 @@ static int hns3_skb_linearize(struct hns3_enet_ring *ring,
 	 * will not help.
 	 */
 	if (skb->len > HNS3_MAX_TSO_SIZE ||
-	    (!skb_is_gso(skb) && skb->len >
-	     HNS3_MAX_NON_TSO_SIZE(max_non_tso_bd_num))) {
+	    (!skb_is_gso(skb) && skb->len > HNS3_MAX_NON_TSO_SIZE)) {
 		u64_stats_update_begin(&ring->syncp);
 		ring->stats.hw_limitation++;
 		u64_stats_update_end(&ring->syncp);
@@ -1336,8 +1334,7 @@ static int hns3_nic_maybe_stop_tx(struct hns3_enet_ring *ring,
 			goto out;
 		}
 
-		if (hns3_skb_linearize(ring, skb, max_non_tso_bd_num,
-				       bd_num))
+		if (hns3_skb_linearize(ring, skb, bd_num))
 			return -ENOMEM;
 
 		bd_num = hns3_tx_bd_count(skb->len);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 398686b15a826..a8ad7ccae20e9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -170,11 +170,9 @@ enum hns3_nic_state {
 
 #define HNS3_MAX_BD_SIZE			65535
 #define HNS3_MAX_TSO_BD_NUM			63U
-#define HNS3_MAX_TSO_SIZE \
-	(HNS3_MAX_BD_SIZE * HNS3_MAX_TSO_BD_NUM)
+#define HNS3_MAX_TSO_SIZE			1048576U
+#define HNS3_MAX_NON_TSO_SIZE			9728U
 
-#define HNS3_MAX_NON_TSO_SIZE(max_non_tso_bd_num) \
-	(HNS3_MAX_BD_SIZE * (max_non_tso_bd_num))
 
 #define HNS3_VECTOR_GL0_OFFSET			0x100
 #define HNS3_VECTOR_GL1_OFFSET			0x200
-- 
GitLab


From 81d8e70cdce4f4e1414943ed0f78215b1abb0027 Mon Sep 17 00:00:00 2001
From: Brendan Higgins <brendanhiggins@google.com>
Date: Wed, 29 Sep 2021 14:27:09 -0700
Subject: [PATCH 0486/4878] gcc-plugins/structleak: add makefile var for
 disabling structleak

[ Upstream commit 554afc3b9797511e3245864e32aebeb6abbab1e3 ]

KUnit and structleak don't play nice, so add a makefile variable for
enabling structleak when it complains.

Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/Makefile.gcc-plugins | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins
index 952e46876329a..4aad284800355 100644
--- a/scripts/Makefile.gcc-plugins
+++ b/scripts/Makefile.gcc-plugins
@@ -19,6 +19,10 @@ gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF)		\
 		+= -fplugin-arg-structleak_plugin-byref
 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL)	\
 		+= -fplugin-arg-structleak_plugin-byref-all
+ifdef CONFIG_GCC_PLUGIN_STRUCTLEAK
+    DISABLE_STRUCTLEAK_PLUGIN += -fplugin-arg-structleak_plugin-disable
+endif
+export DISABLE_STRUCTLEAK_PLUGIN
 gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_STRUCTLEAK)		\
 		+= -DSTRUCTLEAK_PLUGIN
 
-- 
GitLab


From 369db2a91d5cfa55b04c919af7f5680276996e06 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Oct 2021 16:19:40 +0200
Subject: [PATCH 0487/4878] ALSA: hda: intel: Allow repeatedly probing on codec
 configuration errors

[ Upstream commit c0f1886de7e173865f1a0fa7680a1c07954a987f ]

It seems that a few recent AMD systems show the codec configuration
errors at the early boot, while loading the driver at a later stage
works magically.  Although the root cause of the error isn't clear,
it's certainly not bad to allow retrying the codec probe in such a
case if that helps.

This patch adds the capability for retrying the probe upon codec probe
errors on the certain AMD platforms.  The probe_work is changed to a
delayed work, and at the secondary call, it'll jump to the codec
probing.

Note that, not only adding the re-probing, this includes the behavior
changes in the codec configuration function.  Namely,
snd_hda_codec_configure() won't unregister the codec at errors any
longer.  Instead, its caller, azx_codec_configure() unregisters the
codecs with the probe failures *if* any codec has been successfully
configured.  If all codec probe failed, it doesn't unregister but let
it re-probed -- which is the most case we're seeing and this patch
tries to improve.

Even if the driver doesn't re-probe or give up, it will go to the
"free-all" error path, hence the leftover codecs shall be disabled /
deleted in anyway.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1190801
Link: https://lore.kernel.org/r/20211006141940.2897-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/sound/hda_codec.h      |  1 +
 sound/pci/hda/hda_bind.c       | 20 +++++++++++---------
 sound/pci/hda/hda_codec.c      |  1 +
 sound/pci/hda/hda_controller.c | 24 ++++++++++++++++--------
 sound/pci/hda/hda_controller.h |  2 +-
 sound/pci/hda/hda_intel.c      | 29 +++++++++++++++++++++++------
 sound/pci/hda/hda_intel.h      |  4 +++-
 7 files changed, 56 insertions(+), 25 deletions(-)

diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h
index 73827b7d17e00..cf530e9fb5f5c 100644
--- a/include/sound/hda_codec.h
+++ b/include/sound/hda_codec.h
@@ -225,6 +225,7 @@ struct hda_codec {
 #endif
 
 	/* misc flags */
+	unsigned int configured:1; /* codec was configured */
 	unsigned int in_freeing:1; /* being released */
 	unsigned int registered:1; /* codec was registered */
 	unsigned int display_power_control:1; /* needs display power */
diff --git a/sound/pci/hda/hda_bind.c b/sound/pci/hda/hda_bind.c
index 17a25e453f60c..4efbcc41fdfb7 100644
--- a/sound/pci/hda/hda_bind.c
+++ b/sound/pci/hda/hda_bind.c
@@ -301,29 +301,31 @@ int snd_hda_codec_configure(struct hda_codec *codec)
 {
 	int err;
 
+	if (codec->configured)
+		return 0;
+
 	if (is_generic_config(codec))
 		codec->probe_id = HDA_CODEC_ID_GENERIC;
 	else
 		codec->probe_id = 0;
 
-	err = snd_hdac_device_register(&codec->core);
-	if (err < 0)
-		return err;
+	if (!device_is_registered(&codec->core.dev)) {
+		err = snd_hdac_device_register(&codec->core);
+		if (err < 0)
+			return err;
+	}
 
 	if (!codec->preset)
 		codec_bind_module(codec);
 	if (!codec->preset) {
 		err = codec_bind_generic(codec);
 		if (err < 0) {
-			codec_err(codec, "Unable to bind the codec\n");
-			goto error;
+			codec_dbg(codec, "Unable to bind the codec\n");
+			return err;
 		}
 	}
 
+	codec->configured = 1;
 	return 0;
-
- error:
-	snd_hdac_device_unregister(&codec->core);
-	return err;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_configure);
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 4cec1bd77e6fe..6dece719be669 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -791,6 +791,7 @@ void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
 	snd_array_free(&codec->nids);
 	remove_conn_list(codec);
 	snd_hdac_regmap_exit(&codec->core);
+	codec->configured = 0;
 }
 EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind);
 
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index b972d59eb1ec2..3de7dc34def24 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -25,6 +25,7 @@
 #include <sound/core.h>
 #include <sound/initval.h>
 #include "hda_controller.h"
+#include "hda_local.h"
 
 #define CREATE_TRACE_POINTS
 #include "hda_controller_trace.h"
@@ -1259,17 +1260,24 @@ EXPORT_SYMBOL_GPL(azx_probe_codecs);
 int azx_codec_configure(struct azx *chip)
 {
 	struct hda_codec *codec, *next;
+	int success = 0;
 
-	/* use _safe version here since snd_hda_codec_configure() deregisters
-	 * the device upon error and deletes itself from the bus list.
-	 */
-	list_for_each_codec_safe(codec, next, &chip->bus) {
-		snd_hda_codec_configure(codec);
+	list_for_each_codec(codec, &chip->bus) {
+		if (!snd_hda_codec_configure(codec))
+			success++;
 	}
 
-	if (!azx_bus(chip)->num_codecs)
-		return -ENODEV;
-	return 0;
+	if (success) {
+		/* unregister failed codecs if any codec has been probed */
+		list_for_each_codec_safe(codec, next, &chip->bus) {
+			if (!codec->configured) {
+				codec_err(codec, "Unable to configure, disabling\n");
+				snd_hdac_device_unregister(&codec->core);
+			}
+		}
+	}
+
+	return success ? 0 : -ENODEV;
 }
 EXPORT_SYMBOL_GPL(azx_codec_configure);
 
diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h
index 68f9668788ea2..324cba13c7bac 100644
--- a/sound/pci/hda/hda_controller.h
+++ b/sound/pci/hda/hda_controller.h
@@ -41,7 +41,7 @@
 /* 24 unused */
 #define AZX_DCAPS_COUNT_LPIB_DELAY  (1 << 25)	/* Take LPIB as delay */
 #define AZX_DCAPS_PM_RUNTIME	(1 << 26)	/* runtime PM support */
-/* 27 unused */
+#define AZX_DCAPS_RETRY_PROBE	(1 << 27)	/* retry probe if no codec is configured */
 #define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28)	/* CORBRP clears itself after reset */
 #define AZX_DCAPS_NO_MSI64      (1 << 29)	/* Stick to 32-bit MSIs */
 #define AZX_DCAPS_SEPARATE_STREAM_TAG	(1 << 30) /* capture and playback use separate stream tag */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 4c8b281c39921..8bc27e7c05905 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -341,7 +341,8 @@ enum {
 /* quirks for AMD SB */
 #define AZX_DCAPS_PRESET_AMD_SB \
 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_AMD_WORKAROUND |\
-	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
+	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME |\
+	 AZX_DCAPS_RETRY_PROBE)
 
 /* quirks for Nvidia */
 #define AZX_DCAPS_PRESET_NVIDIA \
@@ -1758,7 +1759,7 @@ static void azx_check_snoop_available(struct azx *chip)
 
 static void azx_probe_work(struct work_struct *work)
 {
-	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
+	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work.work);
 	azx_probe_continue(&hda->chip);
 }
 
@@ -1867,7 +1868,7 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 	}
 
 	/* continue probing in work context as may trigger request module */
-	INIT_WORK(&hda->probe_work, azx_probe_work);
+	INIT_DELAYED_WORK(&hda->probe_work, azx_probe_work);
 
 	*rchip = chip;
 
@@ -2202,7 +2203,7 @@ static int azx_probe(struct pci_dev *pci,
 #endif
 
 	if (schedule_probe)
-		schedule_work(&hda->probe_work);
+		schedule_delayed_work(&hda->probe_work, 0);
 
 	dev++;
 	if (chip->disabled)
@@ -2290,6 +2291,11 @@ static int azx_probe_continue(struct azx *chip)
 	int dev = chip->dev_index;
 	int err;
 
+	if (chip->disabled || hda->init_failed)
+		return -EIO;
+	if (hda->probe_retry)
+		goto probe_retry;
+
 	to_hda_bus(bus)->bus_probing = 1;
 	hda->probe_continued = 1;
 
@@ -2351,10 +2357,20 @@ static int azx_probe_continue(struct azx *chip)
 #endif
 	}
 #endif
+
+ probe_retry:
 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
 		err = azx_codec_configure(chip);
-		if (err < 0)
+		if (err) {
+			if ((chip->driver_caps & AZX_DCAPS_RETRY_PROBE) &&
+			    ++hda->probe_retry < 60) {
+				schedule_delayed_work(&hda->probe_work,
+						      msecs_to_jiffies(1000));
+				return 0; /* keep things up */
+			}
+			dev_err(chip->card->dev, "Cannot probe codecs, giving up\n");
 			goto out_free;
+		}
 	}
 
 	err = snd_card_register(chip->card);
@@ -2384,6 +2400,7 @@ out_free:
 		display_power(chip, false);
 	complete_all(&hda->probe_wait);
 	to_hda_bus(bus)->bus_probing = 0;
+	hda->probe_retry = 0;
 	return 0;
 }
 
@@ -2409,7 +2426,7 @@ static void azx_remove(struct pci_dev *pci)
 		 * device during cancel_work_sync() call.
 		 */
 		device_unlock(&pci->dev);
-		cancel_work_sync(&hda->probe_work);
+		cancel_delayed_work_sync(&hda->probe_work);
 		device_lock(&pci->dev);
 
 		snd_card_free(card);
diff --git a/sound/pci/hda/hda_intel.h b/sound/pci/hda/hda_intel.h
index 3fb119f090408..0f39418f9328b 100644
--- a/sound/pci/hda/hda_intel.h
+++ b/sound/pci/hda/hda_intel.h
@@ -14,7 +14,7 @@ struct hda_intel {
 
 	/* sync probing */
 	struct completion probe_wait;
-	struct work_struct probe_work;
+	struct delayed_work probe_work;
 
 	/* card list (for power_save trigger) */
 	struct list_head list;
@@ -30,6 +30,8 @@ struct hda_intel {
 	unsigned int freed:1; /* resources already released */
 
 	bool need_i915_power:1; /* the hda controller needs i915 power */
+
+	int probe_retry;	/* being probe-retry */
 };
 
 #endif
-- 
GitLab


From f9d16a4284890bbcfa0888b02a718c1bae8168b3 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Fri, 1 Oct 2021 13:52:30 +0100
Subject: [PATCH 0488/4878] btrfs: deal with errors when checking if a dir
 entry exists during log replay

[ Upstream commit 77a5b9e3d14cbce49ceed2766b2003c034c066dc ]

Currently inode_in_dir() ignores errors returned from
btrfs_lookup_dir_index_item() and from btrfs_lookup_dir_item(), treating
any errors as if the directory entry does not exists in the fs/subvolume
tree, which is obviously not correct, as we can get errors such as -EIO
when reading extent buffers while searching the fs/subvolume's tree.

Fix that by making inode_in_dir() return the errors and making its only
caller, add_inode_ref(), deal with returned errors as well.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/tree-log.c | 47 ++++++++++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 18 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index c3bb5c4375ab0..3b93a98fd5449 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -894,9 +894,11 @@ out:
 }
 
 /*
- * helper function to see if a given name and sequence number found
- * in an inode back reference are already in a directory and correctly
- * point to this inode
+ * See if a given name and sequence number found in an inode back reference are
+ * already in a directory and correctly point to this inode.
+ *
+ * Returns: < 0 on error, 0 if the directory entry does not exists and 1 if it
+ * exists.
  */
 static noinline int inode_in_dir(struct btrfs_root *root,
 				 struct btrfs_path *path,
@@ -905,29 +907,35 @@ static noinline int inode_in_dir(struct btrfs_root *root,
 {
 	struct btrfs_dir_item *di;
 	struct btrfs_key location;
-	int match = 0;
+	int ret = 0;
 
 	di = btrfs_lookup_dir_index_item(NULL, root, path, dirid,
 					 index, name, name_len, 0);
-	if (di && !IS_ERR(di)) {
+	if (IS_ERR(di)) {
+		if (PTR_ERR(di) != -ENOENT)
+			ret = PTR_ERR(di);
+		goto out;
+	} else if (di) {
 		btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);
 		if (location.objectid != objectid)
 			goto out;
-	} else
+	} else {
 		goto out;
-	btrfs_release_path(path);
+	}
 
+	btrfs_release_path(path);
 	di = btrfs_lookup_dir_item(NULL, root, path, dirid, name, name_len, 0);
-	if (di && !IS_ERR(di)) {
-		btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);
-		if (location.objectid != objectid)
-			goto out;
-	} else
+	if (IS_ERR(di)) {
+		ret = PTR_ERR(di);
 		goto out;
-	match = 1;
+	} else if (di) {
+		btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);
+		if (location.objectid == objectid)
+			ret = 1;
+	}
 out:
 	btrfs_release_path(path);
-	return match;
+	return ret;
 }
 
 /*
@@ -1477,10 +1485,12 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 		if (ret)
 			goto out;
 
-		/* if we already have a perfect match, we're done */
-		if (!inode_in_dir(root, path, btrfs_ino(BTRFS_I(dir)),
-					btrfs_ino(BTRFS_I(inode)), ref_index,
-					name, namelen)) {
+		ret = inode_in_dir(root, path, btrfs_ino(BTRFS_I(dir)),
+				   btrfs_ino(BTRFS_I(inode)), ref_index,
+				   name, namelen);
+		if (ret < 0) {
+			goto out;
+		} else if (ret == 0) {
 			/*
 			 * look for a conflicting back reference in the
 			 * metadata. if we find one we have to unlink that name
@@ -1538,6 +1548,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 
 			btrfs_update_inode(trans, root, inode);
 		}
+		/* Else, ret == 1, we already have a perfect match, we're done. */
 
 		ref_ptr = (unsigned long)(ref_ptr + ref_struct_size) + namelen;
 		kfree(name);
-- 
GitLab


From 15d3ad79885b91d9bdcaa102027021d447b89ea5 Mon Sep 17 00:00:00 2001
From: Herve Codina <herve.codina@bootlin.com>
Date: Fri, 8 Oct 2021 12:34:39 +0200
Subject: [PATCH 0489/4878] net: stmmac: add support for dwmac 3.40a

[ Upstream commit 9cb1d19f47fafad7dcf7c8564e633440c946cfd7 ]

dwmac 3.40a is an old ip version that can be found on SPEAr3xx soc.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c   | 1 +
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
index fad503820e040..b3365b34cac7c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-generic.c
@@ -71,6 +71,7 @@ err_remove_config_dt:
 
 static const struct of_device_id dwmac_generic_match[] = {
 	{ .compatible = "st,spear600-gmac"},
+	{ .compatible = "snps,dwmac-3.40a"},
 	{ .compatible = "snps,dwmac-3.50a"},
 	{ .compatible = "snps,dwmac-3.610"},
 	{ .compatible = "snps,dwmac-3.70a"},
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 53be8fc1d125f..48186cd32ce10 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -508,6 +508,14 @@ stmmac_probe_config_dt(struct platform_device *pdev, const char **mac)
 		plat->pmt = 1;
 	}
 
+	if (of_device_is_compatible(np, "snps,dwmac-3.40a")) {
+		plat->has_gmac = 1;
+		plat->enh_desc = 1;
+		plat->tx_coe = 1;
+		plat->bugged_jumbo = 1;
+		plat->pmt = 1;
+	}
+
 	if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.10a") ||
 	    of_device_is_compatible(np, "snps,dwmac-4.20a") ||
-- 
GitLab


From ab4f542b515b694ecb7d7a73a4e7e908528a7cfe Mon Sep 17 00:00:00 2001
From: Herve Codina <herve.codina@bootlin.com>
Date: Fri, 8 Oct 2021 12:34:40 +0200
Subject: [PATCH 0490/4878] ARM: dts: spear3xx: Fix gmac node

[ Upstream commit 6636fec29cdf6665bd219564609e8651f6ddc142 ]

On SPEAr3xx, ethernet driver is not compatible with the SPEAr600
one.
Indeed, SPEAr3xx uses an earlier version of this IP (v3.40) and
needs some driver tuning compare to SPEAr600.

The v3.40 IP support was added to stmmac driver and this patch
fixes this issue and use the correct compatible string for
SPEAr3xx

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/spear3xx.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/spear3xx.dtsi b/arch/arm/boot/dts/spear3xx.dtsi
index f266b7b034823..cc88ebe7a60ce 100644
--- a/arch/arm/boot/dts/spear3xx.dtsi
+++ b/arch/arm/boot/dts/spear3xx.dtsi
@@ -47,7 +47,7 @@
 		};
 
 		gmac: eth@e0800000 {
-			compatible = "st,spear600-gmac";
+			compatible = "snps,dwmac-3.40a";
 			reg = <0xe0800000 0x8000>;
 			interrupts = <23 22>;
 			interrupt-names = "macirq", "eth_wake_irq";
-- 
GitLab


From 9f591cbdbed3d7822b2bdba89b34a6d7b434317d Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Sat, 9 Oct 2021 11:33:49 +0000
Subject: [PATCH 0491/4878] isdn: mISDN: Fix sleeping function called from
 invalid context

[ Upstream commit 6510e80a0b81b5d814e3aea6297ba42f5e76f73c ]

The driver can call card->isac.release() function from an atomic
context.

Fix this by calling this function after releasing the lock.

The following log reveals it:

[   44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[   44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[   44.169574 ] INFO: lockdep is turned off.
[   44.169899 ] irq event stamp: 0
[   44.170160 ] hardirqs last  enabled at (0): [<0000000000000000>] 0x0
[   44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00
[   44.171240 ] softirqs last  enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00
[   44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0
[   44.172318 ] Preemption disabled at:
[   44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet]
[   44.174441 ] Call Trace:
[   44.174630 ]  dump_stack_lvl+0xa8/0xd1
[   44.174912 ]  dump_stack+0x15/0x17
[   44.175166 ]  ___might_sleep+0x3a2/0x510
[   44.175459 ]  ? nj_release+0x69/0x500 [netjet]
[   44.175791 ]  __might_sleep+0x82/0xe0
[   44.176063 ]  ? start_flush_work+0x20/0x7b0
[   44.176375 ]  start_flush_work+0x33/0x7b0
[   44.176672 ]  ? trace_irq_enable_rcuidle+0x85/0x170
[   44.177034 ]  ? kasan_quarantine_put+0xaa/0x1f0
[   44.177372 ]  ? kasan_quarantine_put+0xaa/0x1f0
[   44.177711 ]  __flush_work+0x11a/0x1a0
[   44.177991 ]  ? flush_work+0x20/0x20
[   44.178257 ]  ? lock_release+0x13c/0x8f0
[   44.178550 ]  ? __kasan_check_write+0x14/0x20
[   44.178872 ]  ? do_raw_spin_lock+0x148/0x360
[   44.179187 ]  ? read_lock_is_recursive+0x20/0x20
[   44.179530 ]  ? __kasan_check_read+0x11/0x20
[   44.179846 ]  ? do_raw_spin_unlock+0x55/0x900
[   44.180168 ]  ? ____kasan_slab_free+0x116/0x140
[   44.180505 ]  ? _raw_spin_unlock_irqrestore+0x41/0x60
[   44.180878 ]  ? skb_queue_purge+0x1a3/0x1c0
[   44.181189 ]  ? kfree+0x13e/0x290
[   44.181438 ]  flush_work+0x17/0x20
[   44.181695 ]  mISDN_freedchannel+0xe8/0x100
[   44.182006 ]  isac_release+0x210/0x260 [mISDNipac]
[   44.182366 ]  nj_release+0xf6/0x500 [netjet]
[   44.182685 ]  nj_remove+0x48/0x70 [netjet]
[   44.182989 ]  pci_device_remove+0xa9/0x250

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/isdn/hardware/mISDN/netjet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c
index 2a1ddd47a0968..a52f275f82634 100644
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@@ -949,8 +949,8 @@ nj_release(struct tiger_hw *card)
 		nj_disable_hwirq(card);
 		mode_tiger(&card->bc[0], ISDN_P_NONE);
 		mode_tiger(&card->bc[1], ISDN_P_NONE);
-		card->isac.release(&card->isac);
 		spin_unlock_irqrestore(&card->lock, flags);
+		card->isac.release(&card->isac);
 		release_region(card->base, card->base_s);
 		card->base_s = 0;
 	}
-- 
GitLab


From 85c8d8c1609df3038801b45989b6ae18ef03c265 Mon Sep 17 00:00:00 2001
From: Prashant Malani <pmalani@chromium.org>
Date: Tue, 28 Sep 2021 03:19:34 -0700
Subject: [PATCH 0492/4878] platform/x86: intel_scu_ipc: Update timeout value
 in comment

[ Upstream commit a0c5814b9933f25ecb6de169483c5b88cf632bca ]

The comment decribing the IPC timeout hadn't been updated when the
actual timeout was changed from 3 to 5 seconds in
commit a7d53dbbc70a ("platform/x86: intel_scu_ipc: Increase virtual
timeout from 3 to 5 seconds") .

Since the value is anyway updated to 10s now, take this opportunity to
update the value in the comment too.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Cc: Benson Leung <bleung@chromium.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20210928101932.2543937-4-pmalani@chromium.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/intel_scu_ipc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 425d2064148f9..69d706039cb20 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -247,7 +247,7 @@ static inline int busy_loop(struct intel_scu_ipc_dev *scu)
 	return -ETIMEDOUT;
 }
 
-/* Wait till ipc ioc interrupt is received or timeout in 3 HZ */
+/* Wait till ipc ioc interrupt is received or timeout in 10 HZ */
 static inline int ipc_wait_for_interrupt(struct intel_scu_ipc_dev *scu)
 {
 	int status;
-- 
GitLab


From e56a3e7ae3533ae1bf2dc742cf3538e459324340 Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Tue, 12 Oct 2021 17:29:35 +0300
Subject: [PATCH 0493/4878] ALSA: hda: avoid write to STATESTS if controller is
 in reset

[ Upstream commit b37a15188eae9d4c49c5bb035e0c8d4058e4d9b3 ]

The snd_hdac_bus_reset_link() contains logic to clear STATESTS register
before performing controller reset. This code dates back to an old
bugfix in commit e8a7f136f5ed ("[ALSA] hda-intel - Improve HD-audio
codec probing robustness"). Originally the code was added to
azx_reset().

The code was moved around in commit a41d122449be ("ALSA: hda - Embed bus
into controller object") and ended up to snd_hdac_bus_reset_link() and
called primarily via snd_hdac_bus_init_chip().

The logic to clear STATESTS is correct when snd_hdac_bus_init_chip() is
called when controller is not in reset. In this case, STATESTS can be
cleared. This can be useful e.g. when forcing a controller reset to retry
codec probe. A normal non-power-on reset will not clear the bits.

However, this old logic is problematic when controller is already in
reset. The HDA specification states that controller must be taken out of
reset before writing to registers other than GCTL.CRST (1.0a spec,
3.3.7). The write to STATESTS in snd_hdac_bus_reset_link() will be lost
if the controller is already in reset per the HDA specification mentioned.

This has been harmless on older hardware. On newer generation of Intel
PCIe based HDA controllers, if configured to report issues, this write
will emit an unsupported request error. If ACPI Platform Error Interface
(APEI) is enabled in kernel, this will end up to kernel log.

Fix the code in snd_hdac_bus_reset_link() to only clear the STATESTS if
the function is called when controller is not in reset. Otherwise
clearing the bits is not possible and should be skipped.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211012142935.3731820-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/hdac_controller.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index b98449fd92f3b..522d1897659cb 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -421,8 +421,9 @@ int snd_hdac_bus_reset_link(struct hdac_bus *bus, bool full_reset)
 	if (!full_reset)
 		goto skip_reset;
 
-	/* clear STATESTS */
-	snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);
+	/* clear STATESTS if not in reset */
+	if (snd_hdac_chip_readb(bus, GCTL) & AZX_GCTL_RESET)
+		snd_hdac_chip_writew(bus, STATESTS, STATESTS_INT_MASK);
 
 	/* reset controller */
 	snd_hdac_bus_enter_link_reset(bus);
-- 
GitLab


From 7a5a1f09c8b45685a2336d418b5a49439c190e92 Mon Sep 17 00:00:00 2001
From: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Date: Mon, 11 Oct 2021 17:37:04 +0900
Subject: [PATCH 0494/4878] libperf tests: Fix test_stat_cpu

[ Upstream commit 3ff6d64e68abc231955d216236615918797614ae ]

The `cpu` argument of perf_evsel__read() must specify the cpu index.

perf_cpu_map__for_each_cpu() is for iterating the cpu number (not index)
and is thus not appropriate for use with perf_evsel__read().

So, if there is an offline CPU, the cpu number specified in the argument
may point out of range because the cpu number and the cpu index are
different.

Fix test_stat_cpu().

Testing it:

  # make tests -C tools/lib/perf/
  make: Entering directory '/home/nakamura/kernel_src/linux-5.15-rc4_fix/tools/lib/perf'
  running static:
  - running tests/test-cpumap.c...OK
  - running tests/test-threadmap.c...OK
  - running tests/test-evlist.c...OK
  - running tests/test-evsel.c...OK
  running dynamic:
  - running tests/test-cpumap.c...OK
  - running tests/test-threadmap.c...OK
  - running tests/test-evlist.c...OK
  - running tests/test-evsel.c...OK
  make: Leaving directory '/home/nakamura/kernel_src/linux-5.15-rc4_fix/tools/lib/perf'

Signed-off-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211011083704.4108720-1-nakamura.shun@fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/perf/tests/test-evlist.c | 6 +++---
 tools/lib/perf/tests/test-evsel.c  | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/lib/perf/tests/test-evlist.c b/tools/lib/perf/tests/test-evlist.c
index bd19cabddaf62..60b5d1801103b 100644
--- a/tools/lib/perf/tests/test-evlist.c
+++ b/tools/lib/perf/tests/test-evlist.c
@@ -38,7 +38,7 @@ static int test_stat_cpu(void)
 		.type	= PERF_TYPE_SOFTWARE,
 		.config	= PERF_COUNT_SW_TASK_CLOCK,
 	};
-	int err, cpu, tmp;
+	int err, idx;
 
 	cpus = perf_cpu_map__new(NULL);
 	__T("failed to create cpus", cpus);
@@ -64,10 +64,10 @@ static int test_stat_cpu(void)
 	perf_evlist__for_each_evsel(evlist, evsel) {
 		cpus = perf_evsel__cpus(evsel);
 
-		perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
+		for (idx = 0; idx < perf_cpu_map__nr(cpus); idx++) {
 			struct perf_counts_values counts = { .val = 0 };
 
-			perf_evsel__read(evsel, cpu, 0, &counts);
+			perf_evsel__read(evsel, idx, 0, &counts);
 			__T("failed to read value for evsel", counts.val != 0);
 		}
 	}
diff --git a/tools/lib/perf/tests/test-evsel.c b/tools/lib/perf/tests/test-evsel.c
index 0ad82d7a2a51b..2de98768d8444 100644
--- a/tools/lib/perf/tests/test-evsel.c
+++ b/tools/lib/perf/tests/test-evsel.c
@@ -21,7 +21,7 @@ static int test_stat_cpu(void)
 		.type	= PERF_TYPE_SOFTWARE,
 		.config	= PERF_COUNT_SW_CPU_CLOCK,
 	};
-	int err, cpu, tmp;
+	int err, idx;
 
 	cpus = perf_cpu_map__new(NULL);
 	__T("failed to create cpus", cpus);
@@ -32,10 +32,10 @@ static int test_stat_cpu(void)
 	err = perf_evsel__open(evsel, cpus, NULL);
 	__T("failed to open evsel", err == 0);
 
-	perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
+	for (idx = 0; idx < perf_cpu_map__nr(cpus); idx++) {
 		struct perf_counts_values counts = { .val = 0 };
 
-		perf_evsel__read(evsel, cpu, 0, &counts);
+		perf_evsel__read(evsel, idx, 0, &counts);
 		__T("failed to read value for evsel", counts.val != 0);
 	}
 
-- 
GitLab


From ea9c1f5d8a3add8d47986460513660ff24ef66bb Mon Sep 17 00:00:00 2001
From: Kan Liang <kan.liang@linux.intel.com>
Date: Wed, 6 Oct 2021 13:12:17 -0700
Subject: [PATCH 0495/4878] perf/x86/msr: Add Sapphire Rapids CPU support

[ Upstream commit 71920ea97d6d1d800ee8b51951dc3fda3f5dc698 ]

SMI_COUNT MSR is supported on Sapphire Rapids CPU.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/1633551137-192083-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/msr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c
index 4be8f9cabd070..ca8ce64df2ceb 100644
--- a/arch/x86/events/msr.c
+++ b/arch/x86/events/msr.c
@@ -68,6 +68,7 @@ static bool test_intel(int idx, void *data)
 	case INTEL_FAM6_BROADWELL_D:
 	case INTEL_FAM6_BROADWELL_G:
 	case INTEL_FAM6_BROADWELL_X:
+	case INTEL_FAM6_SAPPHIRERAPIDS_X:
 
 	case INTEL_FAM6_ATOM_SILVERMONT:
 	case INTEL_FAM6_ATOM_SILVERMONT_D:
-- 
GitLab


From 0eb254479685b21ba8e2387a85746cff1b93d10a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Fri, 15 Oct 2021 21:19:33 -0700
Subject: [PATCH 0496/4878] Input: snvs_pwrkey - add clk handling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit d997cc1715df7b6c3df798881fb9941acf0079f8 ]

On i.MX7S and i.MX8M* (but not i.MX6*) the pwrkey device has an
associated clock. Accessing the registers requires that this clock is
enabled. Binding the driver on at least i.MX7S and i.MX8MP while not
having the clock enabled results in a complete hang of the machine.
(This usually only happens if snvs_pwrkey is built as a module and the
rtc-snvs driver isn't already bound because at bootup the required clk
is on and only gets disabled when the clk framework disables unused clks
late during boot.)

This completes the fix in commit 135be16d3505 ("ARM: dts: imx7s: add
snvs clock to pwrkey").

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211013062848.2667192-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/keyboard/snvs_pwrkey.c | 29 ++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/input/keyboard/snvs_pwrkey.c b/drivers/input/keyboard/snvs_pwrkey.c
index 2f5e3ab5ed638..65286762b02ab 100644
--- a/drivers/input/keyboard/snvs_pwrkey.c
+++ b/drivers/input/keyboard/snvs_pwrkey.c
@@ -3,6 +3,7 @@
 // Driver for the IMX SNVS ON/OFF Power Key
 // Copyright (C) 2015 Freescale Semiconductor, Inc. All Rights Reserved.
 
+#include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -99,6 +100,11 @@ static irqreturn_t imx_snvs_pwrkey_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static void imx_snvs_pwrkey_disable_clk(void *data)
+{
+	clk_disable_unprepare(data);
+}
+
 static void imx_snvs_pwrkey_act(void *pdata)
 {
 	struct pwrkey_drv_data *pd = pdata;
@@ -111,6 +117,7 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 	struct pwrkey_drv_data *pdata;
 	struct input_dev *input;
 	struct device_node *np;
+	struct clk *clk;
 	int error;
 	u32 vid;
 
@@ -134,6 +141,28 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, "KEY_POWER without setting in dts\n");
 	}
 
+	clk = devm_clk_get_optional(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "Failed to get snvs clock (%pe)\n", clk);
+		return PTR_ERR(clk);
+	}
+
+	error = clk_prepare_enable(clk);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to enable snvs clock (%pe)\n",
+			ERR_PTR(error));
+		return error;
+	}
+
+	error = devm_add_action_or_reset(&pdev->dev,
+					 imx_snvs_pwrkey_disable_clk, clk);
+	if (error) {
+		dev_err(&pdev->dev,
+			"Failed to register clock cleanup handler (%pe)\n",
+			ERR_PTR(error));
+		return error;
+	}
+
 	pdata->wakeup = of_property_read_bool(np, "wakeup-source");
 
 	pdata->irq = platform_get_irq(pdev, 0);
-- 
GitLab


From 90c8e8c0829b78518cf9dc4f6fca286848ce4c5a Mon Sep 17 00:00:00 2001
From: Mike Christie <michael.christie@oracle.com>
Date: Sun, 10 Oct 2021 11:19:04 -0500
Subject: [PATCH 0497/4878] scsi: iscsi: Fix set_param() handling

[ Upstream commit 187a580c9e7895978dcd1e627b9c9e7e3d13ca96 ]

In commit 9e67600ed6b8 ("scsi: iscsi: Fix race condition between login and
sync thread") we meant to add a check where before we call ->set_param() we
make sure the iscsi_cls_connection is bound. The problem is that between
versions 4 and 5 of the patch the deletion of the unchecked set_param()
call was dropped so we ended up with 2 calls. As a result we can still hit
a crash where we access the unbound connection on the first call.

This patch removes that first call.

Fixes: 9e67600ed6b8 ("scsi: iscsi: Fix race condition between login and sync thread")
Link: https://lore.kernel.org/r/20211010161904.60471-1-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Li Feng <fengli@smartx.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_transport_iscsi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 41772b88610ae..3f7fa8de36427 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2907,8 +2907,6 @@ iscsi_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev)
 			session->recovery_tmo = value;
 		break;
 	default:
-		err = transport->set_param(conn, ev->u.set_param.param,
-					   data, ev->u.set_param.len);
 		if ((conn->state == ISCSI_CONN_BOUND) ||
 			(conn->state == ISCSI_CONN_UP)) {
 			err = transport->set_param(conn, ev->u.set_param.param,
-- 
GitLab


From 96f0aebf29be25254fa585af43924e34aa21fd9a Mon Sep 17 00:00:00 2001
From: Joy Gu <jgu@purestorage.com>
Date: Tue, 12 Oct 2021 12:18:33 -0700
Subject: [PATCH 0498/4878] scsi: qla2xxx: Fix a memory leak in an error path
 of qla2x00_process_els()

[ Upstream commit 7fb223d0ad801f633c78cbe42b1d1b55f5d163ad ]

Commit 8c0eb596baa5 ("[SCSI] qla2xxx: Fix a memory leak in an error path of
qla2x00_process_els()"), intended to change:

        bsg_job->request->msgcode == FC_BSG_HST_ELS_NOLOGIN

to:

        bsg_job->request->msgcode != FC_BSG_RPT_ELS

but changed it to:

        bsg_job->request->msgcode == FC_BSG_RPT_ELS

instead.

Change the == to a != to avoid leaking the fcport structure or freeing
unallocated memory.

Link: https://lore.kernel.org/r/20211012191834.90306-2-jgu@purestorage.com
Fixes: 8c0eb596baa5 ("[SCSI] qla2xxx: Fix a memory leak in an error path of qla2x00_process_els()")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Joy Gu <jgu@purestorage.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_bsg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 7fa085969a63a..1fd292a6ac881 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -414,7 +414,7 @@ done_unmap_sg:
 	goto done_free_fcport;
 
 done_free_fcport:
-	if (bsg_request->msgcode == FC_BSG_RPT_ELS)
+	if (bsg_request->msgcode != FC_BSG_RPT_ELS)
 		qla2x00_free_fcport(fcport);
 done:
 	return rval;
-- 
GitLab


From 96fe5061291d9e9734abf6bb187ef7532824522d Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Tue, 12 Oct 2021 16:35:21 +0800
Subject: [PATCH 0499/4878] sched/scs: Reset the shadow stack when
 idle_task_exit

[ Upstream commit 63acd42c0d4942f74710b11c38602fb14dea7320 ]

Commit f1a0a376ca0c ("sched/core: Initialize the idle task with
preemption disabled") removed the init_idle() call from
idle_thread_get(). This was the sole call-path on hotplug that resets
the Shadow Call Stack (scs) Stack Pointer (sp).

Not resetting the scs-sp leads to scs overflow after enough hotplug
cycles. Therefore add an explicit scs_task_reset() to the hotplug code
to make sure the scs-sp does get reset on hotplug.

Fixes: f1a0a376ca0c ("sched/core: Initialize the idle task with preemption disabled")
Signed-off-by: Woody Lin <woodylin@google.com>
[peterz: Changelog]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lore.kernel.org/r/20211012083521.973587-1-woodylin@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 6db20a66e8e68..e4551d1736fa3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6677,6 +6677,7 @@ void idle_task_exit(void)
 		finish_arch_post_lock_switch();
 	}
 
+	scs_task_reset(current);
 	/* finish_cpu(), as ran on the BP, will clean up the active_mm state */
 }
 
-- 
GitLab


From c58654f344dda734c320ecf81634443a9e1c61c1 Mon Sep 17 00:00:00 2001
From: Yunsheng Lin <linyunsheng@huawei.com>
Date: Tue, 19 Oct 2021 22:16:32 +0800
Subject: [PATCH 0500/4878] net: hns3: fix for miscalculation of rx unused desc

[ Upstream commit 9f9f0f19994b42b3e5e8735d41b9c5136828a76c ]

rx unused desc is the desc that need attatching new buffer
before refilling to hw to receive new packet, the number of
desc need attatching new buffer is calculated using next_to_use
and next_to_clean. when next_to_use == next_to_clean, currently
hns3 driver assumes that all the desc has the buffer attatched,
but 'next_to_use == next_to_clean' also means all the desc need
attatching new buffer if hw has comsumed all the desc and the
driver has not attatched any buffer to the desc yet.

This patch adds 'refill' in desc_cb to indicate whether a new
buffer has been refilled to a desc.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++++++++
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 568ac6b321fa3..ae7cd73c823b7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2421,6 +2421,7 @@ static void hns3_buffer_detach(struct hns3_enet_ring *ring, int i)
 {
 	hns3_unmap_buffer(ring, &ring->desc_cb[i]);
 	ring->desc[i].addr = 0;
+	ring->desc_cb[i].refill = 0;
 }
 
 static void hns3_free_buffer_detach(struct hns3_enet_ring *ring, int i,
@@ -2498,6 +2499,7 @@ static int hns3_alloc_and_attach_buffer(struct hns3_enet_ring *ring, int i)
 		return ret;
 
 	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
+	ring->desc_cb[i].refill = 1;
 
 	return 0;
 }
@@ -2528,12 +2530,14 @@ static void hns3_replace_buffer(struct hns3_enet_ring *ring, int i,
 	hns3_unmap_buffer(ring, &ring->desc_cb[i]);
 	ring->desc_cb[i] = *res_cb;
 	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma);
+	ring->desc_cb[i].refill = 1;
 	ring->desc[i].rx.bd_base_info = 0;
 }
 
 static void hns3_reuse_buffer(struct hns3_enet_ring *ring, int i)
 {
 	ring->desc_cb[i].reuse_flag = 0;
+	ring->desc_cb[i].refill = 1;
 	ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma +
 					 ring->desc_cb[i].page_offset);
 	ring->desc[i].rx.bd_base_info = 0;
@@ -2631,6 +2635,9 @@ static int hns3_desc_unused(struct hns3_enet_ring *ring)
 	int ntc = ring->next_to_clean;
 	int ntu = ring->next_to_use;
 
+	if (unlikely(ntc == ntu && !ring->desc_cb[ntc].refill))
+		return ring->desc_num;
+
 	return ((ntc >= ntu) ? 0 : ring->desc_num) + ntc - ntu;
 }
 
@@ -2907,6 +2914,7 @@ static void hns3_rx_ring_move_fw(struct hns3_enet_ring *ring)
 {
 	ring->desc[ring->next_to_clean].rx.bd_base_info &=
 		cpu_to_le32(~BIT(HNS3_RXD_VLD_B));
+	ring->desc_cb[ring->next_to_clean].refill = 0;
 	ring->next_to_clean += 1;
 
 	if (unlikely(ring->next_to_clean == ring->desc_num))
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index a8ad7ccae20e9..54d02ea4aaa7c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -283,6 +283,7 @@ struct hns3_desc_cb {
 	u32 length;     /* length of the buffer */
 
 	u16 reuse_flag;
+	u16 refill;
 
 	/* desc type, used by the ring user to mark the type of the priv data */
 	u16 type;
-- 
GitLab


From 2304dfb548a4ba95faa9ef5f87fa88aad3f08923 Mon Sep 17 00:00:00 2001
From: Dexuan Cui <decui@microsoft.com>
Date: Thu, 7 Oct 2021 21:35:46 -0700
Subject: [PATCH 0501/4878] scsi: core: Fix shost->cmd_per_lun calculation in
 scsi_add_host_with_dma()

commit 50b6cb3516365cb69753b006be2b61c966b70588 upstream.

After commit ea2f0f77538c ("scsi: core: Cap scsi_host cmd_per_lun at
can_queue"), a 416-CPU VM running on Hyper-V hangs during boot because the
hv_storvsc driver sets scsi_driver.can_queue to an integer value that
exceeds SHRT_MAX, and hence scsi_add_host_with_dma() sets
shost->cmd_per_lun to a negative "short" value.

Use min_t(int, ...) to work around the issue.

Link: https://lore.kernel.org/r/20211008043546.6006-1-decui@microsoft.com
Fixes: ea2f0f77538c ("scsi: core: Cap scsi_host cmd_per_lun at can_queue")
Cc: stable@vger.kernel.org
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/hosts.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index da3920a19d53d..d664c4650b2dd 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -220,7 +220,8 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev,
 		goto fail;
 	}
 
-	shost->cmd_per_lun = min_t(short, shost->cmd_per_lun,
+	/* Use min_t(int, ...) in case shost->can_queue exceeds SHRT_MAX */
+	shost->cmd_per_lun = min_t(int, shost->cmd_per_lun,
 				   shost->can_queue);
 
 	error = scsi_init_sense_cache(shost);
-- 
GitLab


From f18b90e9366f6d01f65de127e3fe56988cd9f8fd Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Sat, 9 Oct 2021 15:40:30 +0800
Subject: [PATCH 0502/4878] can: isotp: isotp_sendmsg(): fix TX buffer
 concurrent access in isotp_sendmsg()

commit 43a08c3bdac4cb42eff8fe5e2278bffe0c5c3daa upstream.

When isotp_sendmsg() concurrent, tx.state of all TX processes can be
ISOTP_IDLE. The conditions so->tx.state != ISOTP_IDLE and
wq_has_sleeper(&so->wait) can not protect TX buffer from being
accessed by multiple TX processes.

We can use cmpxchg() to try to modify tx.state to ISOTP_SENDING firstly.
If the modification of the previous process succeed, the later process
must wait tx.state to ISOTP_IDLE firstly. Thus, we can ensure TX buffer
is accessed by only one process at the same time. And we should also
restore the original tx.state at the subsequent error processes.

Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Link: https://lore.kernel.org/all/c2517874fbdf4188585cf9ddf67a8fa74d5dbde5.1633764159.git.william.xuanziyang@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 40 +++++++++++++++++++++++++++-------------
 1 file changed, 27 insertions(+), 13 deletions(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 9492009bc4ae2..8ee580538d876 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -121,7 +121,7 @@ enum {
 struct tpcon {
 	int idx;
 	int len;
-	u8 state;
+	u32 state;
 	u8 bs;
 	u8 sn;
 	u8 ll_dl;
@@ -846,6 +846,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 {
 	struct sock *sk = sock->sk;
 	struct isotp_sock *so = isotp_sk(sk);
+	u32 old_state = so->tx.state;
 	struct sk_buff *skb;
 	struct net_device *dev;
 	struct canfd_frame *cf;
@@ -858,39 +859,45 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 		return -EADDRNOTAVAIL;
 
 	/* we do not support multiple buffers - for now */
-	if (so->tx.state != ISOTP_IDLE || wq_has_sleeper(&so->wait)) {
-		if (msg->msg_flags & MSG_DONTWAIT)
-			return -EAGAIN;
+	if (cmpxchg(&so->tx.state, ISOTP_IDLE, ISOTP_SENDING) != ISOTP_IDLE ||
+	    wq_has_sleeper(&so->wait)) {
+		if (msg->msg_flags & MSG_DONTWAIT) {
+			err = -EAGAIN;
+			goto err_out;
+		}
 
 		/* wait for complete transmission of current pdu */
 		err = wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE);
 		if (err)
-			return err;
+			goto err_out;
 	}
 
-	if (!size || size > MAX_MSG_LENGTH)
-		return -EINVAL;
+	if (!size || size > MAX_MSG_LENGTH) {
+		err = -EINVAL;
+		goto err_out;
+	}
 
 	err = memcpy_from_msg(so->tx.buf, msg, size);
 	if (err < 0)
-		return err;
+		goto err_out;
 
 	dev = dev_get_by_index(sock_net(sk), so->ifindex);
-	if (!dev)
-		return -ENXIO;
+	if (!dev) {
+		err = -ENXIO;
+		goto err_out;
+	}
 
 	skb = sock_alloc_send_skb(sk, so->ll.mtu + sizeof(struct can_skb_priv),
 				  msg->msg_flags & MSG_DONTWAIT, &err);
 	if (!skb) {
 		dev_put(dev);
-		return err;
+		goto err_out;
 	}
 
 	can_skb_reserve(skb);
 	can_skb_prv(skb)->ifindex = dev->ifindex;
 	can_skb_prv(skb)->skbcnt = 0;
 
-	so->tx.state = ISOTP_SENDING;
 	so->tx.len = size;
 	so->tx.idx = 0;
 
@@ -949,7 +956,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	if (err) {
 		pr_notice_once("can-isotp: %s: can_send_ret %d\n",
 			       __func__, err);
-		return err;
+		goto err_out;
 	}
 
 	if (wait_tx_done) {
@@ -961,6 +968,13 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	}
 
 	return size;
+
+err_out:
+	so->tx.state = old_state;
+	if (so->tx.state == ISOTP_IDLE)
+		wake_up_interruptible(&so->wait);
+
+	return err;
 }
 
 static int isotp_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
-- 
GitLab


From 188907c252188ac7a5ec3efcfa31dae1f47b8a20 Mon Sep 17 00:00:00 2001
From: Niklas Schnelle <schnelle@linux.ibm.com>
Date: Wed, 22 Sep 2021 15:55:12 +0200
Subject: [PATCH 0503/4878] s390/pci: fix zpci_zdev_put() on reserve

commit a46044a92add6a400f4dada7b943b30221f7cc80 upstream.

Since commit 2a671f77ee49 ("s390/pci: fix use after free of zpci_dev")
the reference count of a zpci_dev is incremented between
pcibios_add_device() and pcibios_release_device() which was supposed to
prevent the zpci_dev from being freed while the common PCI code has
access to it. It was missed however that the handling of zPCI
availability events assumed that once zpci_zdev_put() was called no
later availability event would still see the device. With the previously
mentioned commit however this assumption no longer holds and we must
make sure that we only drop the initial long-lived reference the zPCI
subsystem holds exactly once.

Do so by introducing a zpci_device_reserved() function that handles when
a device is reserved. Here we make sure the zpci_dev will not be
considered for further events by removing it from the zpci_list.

This also means that the device actually stays in the
ZPCI_FN_STATE_RESERVED state between the time we know it has been
reserved and the final reference going away. We thus need to consider it
a real state instead of just a conceptual state after the removal. The
final cleanup of PCI resources, removal from zbus, and destruction of
the IOMMU stays in zpci_release_device() to make sure holders of the
reference do see valid data until the release.

Fixes: 2a671f77ee49 ("s390/pci: fix use after free of zpci_dev")
Cc: stable@vger.kernel.org
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/include/asm/pci.h        |  3 ++
 arch/s390/pci/pci.c                | 45 ++++++++++++++++++++++++++----
 arch/s390/pci/pci_event.c          |  4 +--
 drivers/pci/hotplug/s390_pci_hpc.c |  9 +-----
 4 files changed, 46 insertions(+), 15 deletions(-)

diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index a75d94a9bcb2f..1226971533fe4 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -205,6 +205,9 @@ int zpci_create_device(u32 fid, u32 fh, enum zpci_state state);
 void zpci_remove_device(struct zpci_dev *zdev, bool set_error);
 int zpci_enable_device(struct zpci_dev *);
 int zpci_disable_device(struct zpci_dev *);
+void zpci_device_reserved(struct zpci_dev *zdev);
+bool zpci_is_device_configured(struct zpci_dev *zdev);
+
 int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64);
 int zpci_unregister_ioat(struct zpci_dev *, u8);
 void zpci_remove_reserved_devices(void);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index f5ddbc625c1a5..e14e4a3a647a2 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -92,7 +92,7 @@ void zpci_remove_reserved_devices(void)
 	spin_unlock(&zpci_list_lock);
 
 	list_for_each_entry_safe(zdev, tmp, &remove, entry)
-		zpci_zdev_put(zdev);
+		zpci_device_reserved(zdev);
 }
 
 int pci_domain_nr(struct pci_bus *bus)
@@ -787,6 +787,39 @@ error:
 	return rc;
 }
 
+bool zpci_is_device_configured(struct zpci_dev *zdev)
+{
+	enum zpci_state state = zdev->state;
+
+	return state != ZPCI_FN_STATE_RESERVED &&
+		state != ZPCI_FN_STATE_STANDBY;
+}
+
+/**
+ * zpci_device_reserved() - Mark device as resverved
+ * @zdev: the zpci_dev that was reserved
+ *
+ * Handle the case that a given zPCI function was reserved by another system.
+ * After a call to this function the zpci_dev can not be found via
+ * get_zdev_by_fid() anymore but may still be accessible via existing
+ * references though it will not be functional anymore.
+ */
+void zpci_device_reserved(struct zpci_dev *zdev)
+{
+	if (zdev->has_hp_slot)
+		zpci_exit_slot(zdev);
+	/*
+	 * Remove device from zpci_list as it is going away. This also
+	 * makes sure we ignore subsequent zPCI events for this device.
+	 */
+	spin_lock(&zpci_list_lock);
+	list_del(&zdev->entry);
+	spin_unlock(&zpci_list_lock);
+	zdev->state = ZPCI_FN_STATE_RESERVED;
+	zpci_dbg(3, "rsv fid:%x\n", zdev->fid);
+	zpci_zdev_put(zdev);
+}
+
 void zpci_release_device(struct kref *kref)
 {
 	struct zpci_dev *zdev = container_of(kref, struct zpci_dev, kref);
@@ -802,6 +835,12 @@ void zpci_release_device(struct kref *kref)
 	case ZPCI_FN_STATE_STANDBY:
 		if (zdev->has_hp_slot)
 			zpci_exit_slot(zdev);
+		spin_lock(&zpci_list_lock);
+		list_del(&zdev->entry);
+		spin_unlock(&zpci_list_lock);
+		zpci_dbg(3, "rsv fid:%x\n", zdev->fid);
+		fallthrough;
+	case ZPCI_FN_STATE_RESERVED:
 		zpci_cleanup_bus_resources(zdev);
 		zpci_bus_device_unregister(zdev);
 		zpci_destroy_iommu(zdev);
@@ -809,10 +848,6 @@ void zpci_release_device(struct kref *kref)
 	default:
 		break;
 	}
-
-	spin_lock(&zpci_list_lock);
-	list_del(&zdev->entry);
-	spin_unlock(&zpci_list_lock);
 	zpci_dbg(3, "rem fid:%x\n", zdev->fid);
 	kfree(zdev);
 }
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index ac0c65cdd69d9..b7cfde7e80a8a 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -146,7 +146,7 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
 		zdev->state = ZPCI_FN_STATE_STANDBY;
 		if (!clp_get_state(ccdf->fid, &state) &&
 		    state == ZPCI_FN_STATE_RESERVED) {
-			zpci_zdev_put(zdev);
+			zpci_device_reserved(zdev);
 		}
 		break;
 	case 0x0306: /* 0x308 or 0x302 for multiple devices */
@@ -156,7 +156,7 @@ static void __zpci_event_availability(struct zpci_ccdf_avail *ccdf)
 	case 0x0308: /* Standby -> Reserved */
 		if (!zdev)
 			break;
-		zpci_zdev_put(zdev);
+		zpci_device_reserved(zdev);
 		break;
 	default:
 		break;
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index a047c421debe2..93174f503464e 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -109,14 +109,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	struct zpci_dev *zdev = container_of(hotplug_slot, struct zpci_dev,
 					     hotplug_slot);
 
-	switch (zdev->state) {
-	case ZPCI_FN_STATE_STANDBY:
-		*value = 0;
-		break;
-	default:
-		*value = 1;
-		break;
-	}
+	*value = zpci_is_device_configured(zdev) ? 1 : 0;
 	return 0;
 }
 
-- 
GitLab


From cfe9266213c441b2b7486aa600e151e46a8c38ba Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Mon, 27 Sep 2021 14:39:21 +0200
Subject: [PATCH 0504/4878] bpf, test, cgroup: Use sk_{alloc,free} for test
 cases

commit 435b08ec0094ac1e128afe6cfd0d9311a8c617a7 upstream.

BPF test infra has some hacks in place which kzalloc() a socket and perform
minimum init via sock_net_set() and sock_init_data(). As a result, the sk's
skcd->cgroup is NULL since it didn't go through proper initialization as it
would have been the case from sk_alloc(). Rather than re-adding a NULL test
in sock_cgroup_ptr() just for this, use sk_{alloc,free}() pair for the test
socket. The latter also allows to get rid of the bpf_sk_storage_free() special
case.

Fixes: 8520e224f547 ("bpf, cgroups: Fix cgroup v2 fallback on v1/v2 mixed mode")
Fixes: b7a1848e8398 ("bpf: add BPF_PROG_TEST_RUN support for flow dissector")
Fixes: 2cb494a36c98 ("bpf: add tests for direct packet access from CGROUP_SKB")
Reported-by: syzbot+664b58e9a40fbb2cec71@syzkaller.appspotmail.com
Reported-by: syzbot+33f36d0754d4c5c0e102@syzkaller.appspotmail.com
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: syzbot+664b58e9a40fbb2cec71@syzkaller.appspotmail.com
Tested-by: syzbot+33f36d0754d4c5c0e102@syzkaller.appspotmail.com
Link: https://lore.kernel.org/bpf/20210927123921.21535-2-daniel@iogearbox.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bpf/test_run.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index 72d424a5a1429..eb684f31fd698 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -481,6 +481,12 @@ static void convert_skb_to___skb(struct sk_buff *skb, struct __sk_buff *__skb)
 	__skb->gso_segs = skb_shinfo(skb)->gso_segs;
 }
 
+static struct proto bpf_dummy_proto = {
+	.name   = "bpf_dummy",
+	.owner  = THIS_MODULE,
+	.obj_size = sizeof(struct sock),
+};
+
 int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr,
 			  union bpf_attr __user *uattr)
 {
@@ -525,20 +531,19 @@ int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr,
 		break;
 	}
 
-	sk = kzalloc(sizeof(struct sock), GFP_USER);
+	sk = sk_alloc(net, AF_UNSPEC, GFP_USER, &bpf_dummy_proto, 1);
 	if (!sk) {
 		kfree(data);
 		kfree(ctx);
 		return -ENOMEM;
 	}
-	sock_net_set(sk, net);
 	sock_init_data(NULL, sk);
 
 	skb = build_skb(data, 0);
 	if (!skb) {
 		kfree(data);
 		kfree(ctx);
-		kfree(sk);
+		sk_free(sk);
 		return -ENOMEM;
 	}
 	skb->sk = sk;
@@ -611,8 +616,7 @@ out:
 	if (dev && dev != net->loopback_dev)
 		dev_put(dev);
 	kfree_skb(skb);
-	bpf_sk_storage_free(sk);
-	kfree(sk);
+	sk_free(sk);
 	kfree(ctx);
 	return ret;
 }
-- 
GitLab


From 3a0dc2e35a5d6546b1db87fe985582dadc64fe7b Mon Sep 17 00:00:00 2001
From: Yanfei Xu <yanfei.xu@windriver.com>
Date: Sun, 26 Sep 2021 12:53:13 +0800
Subject: [PATCH 0505/4878] net: mdiobus: Fix memory leak in __mdiobus_register

commit ab609f25d19858513919369ff3d9a63c02cd9e2e upstream.

Once device_register() failed, we should call put_device() to
decrement reference count for cleanup. Or it will cause memory
leak.

BUG: memory leak
unreferenced object 0xffff888114032e00 (size 256):
  comm "kworker/1:3", pid 2960, jiffies 4294943572 (age 15.920s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 08 2e 03 14 81 88 ff ff  ................
    08 2e 03 14 81 88 ff ff 90 76 65 82 ff ff ff ff  .........ve.....
  backtrace:
    [<ffffffff8265cfab>] kmalloc include/linux/slab.h:591 [inline]
    [<ffffffff8265cfab>] kzalloc include/linux/slab.h:721 [inline]
    [<ffffffff8265cfab>] device_private_init drivers/base/core.c:3203 [inline]
    [<ffffffff8265cfab>] device_add+0x89b/0xdf0 drivers/base/core.c:3253
    [<ffffffff828dd643>] __mdiobus_register+0xc3/0x450 drivers/net/phy/mdio_bus.c:537
    [<ffffffff828cb835>] __devm_mdiobus_register+0x75/0xf0 drivers/net/phy/mdio_devres.c:87
    [<ffffffff82b92a00>] ax88772_init_mdio drivers/net/usb/asix_devices.c:676 [inline]
    [<ffffffff82b92a00>] ax88772_bind+0x330/0x480 drivers/net/usb/asix_devices.c:786
    [<ffffffff82baa33f>] usbnet_probe+0x3ff/0xdf0 drivers/net/usb/usbnet.c:1745
    [<ffffffff82c36e17>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<ffffffff82661d17>] call_driver_probe drivers/base/dd.c:517 [inline]
    [<ffffffff82661d17>] really_probe.part.0+0xe7/0x380 drivers/base/dd.c:596
    [<ffffffff826620bc>] really_probe drivers/base/dd.c:558 [inline]
    [<ffffffff826620bc>] __driver_probe_device+0x10c/0x1e0 drivers/base/dd.c:751
    [<ffffffff826621ba>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:781
    [<ffffffff82662a26>] __device_attach_driver+0xf6/0x140 drivers/base/dd.c:898
    [<ffffffff8265eca7>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427
    [<ffffffff826625a2>] __device_attach+0x122/0x260 drivers/base/dd.c:969
    [<ffffffff82660916>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487
    [<ffffffff8265cd0b>] device_add+0x5fb/0xdf0 drivers/base/core.c:3359
    [<ffffffff82c343b9>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2170
    [<ffffffff82c4473c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238

BUG: memory leak
unreferenced object 0xffff888116f06900 (size 32):
  comm "kworker/0:2", pid 2670, jiffies 4294944448 (age 7.160s)
  hex dump (first 32 bytes):
    75 73 62 2d 30 30 31 3a 30 30 33 00 00 00 00 00  usb-001:003.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff81484516>] kstrdup+0x36/0x70 mm/util.c:60
    [<ffffffff814845a3>] kstrdup_const+0x53/0x80 mm/util.c:83
    [<ffffffff82296ba2>] kvasprintf_const+0xc2/0x110 lib/kasprintf.c:48
    [<ffffffff82358d4b>] kobject_set_name_vargs+0x3b/0xe0 lib/kobject.c:289
    [<ffffffff826575f3>] dev_set_name+0x63/0x90 drivers/base/core.c:3147
    [<ffffffff828dd63b>] __mdiobus_register+0xbb/0x450 drivers/net/phy/mdio_bus.c:535
    [<ffffffff828cb835>] __devm_mdiobus_register+0x75/0xf0 drivers/net/phy/mdio_devres.c:87
    [<ffffffff82b92a00>] ax88772_init_mdio drivers/net/usb/asix_devices.c:676 [inline]
    [<ffffffff82b92a00>] ax88772_bind+0x330/0x480 drivers/net/usb/asix_devices.c:786
    [<ffffffff82baa33f>] usbnet_probe+0x3ff/0xdf0 drivers/net/usb/usbnet.c:1745
    [<ffffffff82c36e17>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
    [<ffffffff82661d17>] call_driver_probe drivers/base/dd.c:517 [inline]
    [<ffffffff82661d17>] really_probe.part.0+0xe7/0x380 drivers/base/dd.c:596
    [<ffffffff826620bc>] really_probe drivers/base/dd.c:558 [inline]
    [<ffffffff826620bc>] __driver_probe_device+0x10c/0x1e0 drivers/base/dd.c:751
    [<ffffffff826621ba>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:781
    [<ffffffff82662a26>] __device_attach_driver+0xf6/0x140 drivers/base/dd.c:898
    [<ffffffff8265eca7>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427
    [<ffffffff826625a2>] __device_attach+0x122/0x260 drivers/base/dd.c:969

Reported-by: syzbot+398e7dc692ddbbb4cfec@syzkaller.appspotmail.com
Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/mdio_bus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 2645ca35103c9..453490be7055a 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -544,6 +544,7 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
 	err = device_register(&bus->dev);
 	if (err) {
 		pr_err("mii_bus %s failed to register\n", bus->id);
+		put_device(&bus->dev);
 		return -EINVAL;
 	}
 
-- 
GitLab


From 021b6d11e590bbb2b8f243b699204b48ea3857f4 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Mon, 18 Oct 2021 15:44:12 -0400
Subject: [PATCH 0506/4878] tracing: Have all levels of checks prevent
 recursion

commit ed65df63a39a3f6ed04f7258de8b6789e5021c18 upstream.

While writing an email explaining the "bit = 0" logic for a discussion on
making ftrace_test_recursion_trylock() disable preemption, I discovered a
path that makes the "not do the logic if bit is zero" unsafe.

The recursion logic is done in hot paths like the function tracer. Thus,
any code executed causes noticeable overhead. Thus, tricks are done to try
to limit the amount of code executed. This included the recursion testing
logic.

Having recursion testing is important, as there are many paths that can
end up in an infinite recursion cycle when tracing every function in the
kernel. Thus protection is needed to prevent that from happening.

Because it is OK to recurse due to different running context levels (e.g.
an interrupt preempts a trace, and then a trace occurs in the interrupt
handler), a set of bits are used to know which context one is in (normal,
softirq, irq and NMI). If a recursion occurs in the same level, it is
prevented*.

Then there are infrastructure levels of recursion as well. When more than
one callback is attached to the same function to trace, it calls a loop
function to iterate over all the callbacks. Both the callbacks and the
loop function have recursion protection. The callbacks use the
"ftrace_test_recursion_trylock()" which has a "function" set of context
bits to test, and the loop function calls the internal
trace_test_and_set_recursion() directly, with an "internal" set of bits.

If an architecture does not implement all the features supported by ftrace
then the callbacks are never called directly, and the loop function is
called instead, which will implement the features of ftrace.

Since both the loop function and the callbacks do recursion protection, it
was seemed unnecessary to do it in both locations. Thus, a trick was made
to have the internal set of recursion bits at a more significant bit
location than the function bits. Then, if any of the higher bits were set,
the logic of the function bits could be skipped, as any new recursion
would first have to go through the loop function.

This is true for architectures that do not support all the ftrace
features, because all functions being traced must first go through the
loop function before going to the callbacks. But this is not true for
architectures that support all the ftrace features. That's because the
loop function could be called due to two callbacks attached to the same
function, but then a recursion function inside the callback could be
called that does not share any other callback, and it will be called
directly.

i.e.

 traced_function_1: [ more than one callback tracing it ]
   call loop_func

 loop_func:
   trace_recursion set internal bit
   call callback

 callback:
   trace_recursion [ skipped because internal bit is set, return 0 ]
   call traced_function_2

 traced_function_2: [ only traced by above callback ]
   call callback

 callback:
   trace_recursion [ skipped because internal bit is set, return 0 ]
   call traced_function_2

 [ wash, rinse, repeat, BOOM! out of shampoo! ]

Thus, the "bit == 0 skip" trick is not safe, unless the loop function is
call for all functions.

Since we want to encourage architectures to implement all ftrace features,
having them slow down due to this extra logic may encourage the
maintainers to update to the latest ftrace features. And because this
logic is only safe for them, remove it completely.

 [*] There is on layer of recursion that is allowed, and that is to allow
     for the transition between interrupt context (normal -> softirq ->
     irq -> NMI), because a trace may occur before the context update is
     visible to the trace recursion logic.

Link: https://lore.kernel.org/all/609b565a-ed6e-a1da-f025-166691b5d994@linux.alibaba.com/
Link: https://lkml.kernel.org/r/20211018154412.09fcad3c@gandalf.local.home

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Jisheng Zhang <jszhang@kernel.org>
Cc: =?utf-8?b?546L6LSH?= <yun.wang@linux.alibaba.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: stable@vger.kernel.org
Fixes: edc15cafcbfa3 ("tracing: Avoid unnecessary multiple recursion checks")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/ftrace.c          |  4 +--
 kernel/trace/trace.h           | 61 +++++++++++-----------------------
 kernel/trace/trace_functions.c |  2 +-
 3 files changed, 23 insertions(+), 44 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 30010614b9237..4a5d35dc490b2 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -6985,7 +6985,7 @@ __ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
 	struct ftrace_ops *op;
 	int bit;
 
-	bit = trace_test_and_set_recursion(TRACE_LIST_START, TRACE_LIST_MAX);
+	bit = trace_test_and_set_recursion(TRACE_LIST_START);
 	if (bit < 0)
 		return;
 
@@ -7060,7 +7060,7 @@ static void ftrace_ops_assist_func(unsigned long ip, unsigned long parent_ip,
 {
 	int bit;
 
-	bit = trace_test_and_set_recursion(TRACE_LIST_START, TRACE_LIST_MAX);
+	bit = trace_test_and_set_recursion(TRACE_LIST_START);
 	if (bit < 0)
 		return;
 
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 6784b572ce597..15a811d34cd82 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -573,18 +573,6 @@ struct tracer {
  *    then this function calls...
  *   The function callback, which can use the FTRACE bits to
  *    check for recursion.
- *
- * Now if the arch does not support a feature, and it calls
- * the global list function which calls the ftrace callback
- * all three of these steps will do a recursion protection.
- * There's no reason to do one if the previous caller already
- * did. The recursion that we are protecting against will
- * go through the same steps again.
- *
- * To prevent the multiple recursion checks, if a recursion
- * bit is set that is higher than the MAX bit of the current
- * check, then we know that the check was made by the previous
- * caller, and we can skip the current check.
  */
 enum {
 	/* Function recursion bits */
@@ -592,12 +580,14 @@ enum {
 	TRACE_FTRACE_NMI_BIT,
 	TRACE_FTRACE_IRQ_BIT,
 	TRACE_FTRACE_SIRQ_BIT,
+	TRACE_FTRACE_TRANSITION_BIT,
 
-	/* INTERNAL_BITs must be greater than FTRACE_BITs */
+	/* Internal use recursion bits */
 	TRACE_INTERNAL_BIT,
 	TRACE_INTERNAL_NMI_BIT,
 	TRACE_INTERNAL_IRQ_BIT,
 	TRACE_INTERNAL_SIRQ_BIT,
+	TRACE_INTERNAL_TRANSITION_BIT,
 
 	TRACE_BRANCH_BIT,
 /*
@@ -637,12 +627,6 @@ enum {
 	 * function is called to clear it.
 	 */
 	TRACE_GRAPH_NOTRACE_BIT,
-
-	/*
-	 * When transitioning between context, the preempt_count() may
-	 * not be correct. Allow for a single recursion to cover this case.
-	 */
-	TRACE_TRANSITION_BIT,
 };
 
 #define trace_recursion_set(bit)	do { (current)->trace_recursion |= (1<<(bit)); } while (0)
@@ -662,12 +646,18 @@ enum {
 #define TRACE_CONTEXT_BITS	4
 
 #define TRACE_FTRACE_START	TRACE_FTRACE_BIT
-#define TRACE_FTRACE_MAX	((1 << (TRACE_FTRACE_START + TRACE_CONTEXT_BITS)) - 1)
 
 #define TRACE_LIST_START	TRACE_INTERNAL_BIT
-#define TRACE_LIST_MAX		((1 << (TRACE_LIST_START + TRACE_CONTEXT_BITS)) - 1)
 
-#define TRACE_CONTEXT_MASK	TRACE_LIST_MAX
+#define TRACE_CONTEXT_MASK	((1 << (TRACE_LIST_START + TRACE_CONTEXT_BITS)) - 1)
+
+enum {
+	TRACE_CTX_NMI,
+	TRACE_CTX_IRQ,
+	TRACE_CTX_SOFTIRQ,
+	TRACE_CTX_NORMAL,
+	TRACE_CTX_TRANSITION,
+};
 
 static __always_inline int trace_get_context_bit(void)
 {
@@ -675,59 +665,48 @@ static __always_inline int trace_get_context_bit(void)
 
 	if (in_interrupt()) {
 		if (in_nmi())
-			bit = 0;
+			bit = TRACE_CTX_NMI;
 
 		else if (in_irq())
-			bit = 1;
+			bit = TRACE_CTX_IRQ;
 		else
-			bit = 2;
+			bit = TRACE_CTX_SOFTIRQ;
 	} else
-		bit = 3;
+		bit = TRACE_CTX_NORMAL;
 
 	return bit;
 }
 
-static __always_inline int trace_test_and_set_recursion(int start, int max)
+static __always_inline int trace_test_and_set_recursion(int start)
 {
 	unsigned int val = current->trace_recursion;
 	int bit;
 
-	/* A previous recursion check was made */
-	if ((val & TRACE_CONTEXT_MASK) > max)
-		return 0;
-
 	bit = trace_get_context_bit() + start;
 	if (unlikely(val & (1 << bit))) {
 		/*
 		 * It could be that preempt_count has not been updated during
 		 * a switch between contexts. Allow for a single recursion.
 		 */
-		bit = TRACE_TRANSITION_BIT;
+		bit = start + TRACE_CTX_TRANSITION;
 		if (trace_recursion_test(bit))
 			return -1;
 		trace_recursion_set(bit);
 		barrier();
-		return bit + 1;
+		return bit;
 	}
 
-	/* Normal check passed, clear the transition to allow it again */
-	trace_recursion_clear(TRACE_TRANSITION_BIT);
-
 	val |= 1 << bit;
 	current->trace_recursion = val;
 	barrier();
 
-	return bit + 1;
+	return bit;
 }
 
 static __always_inline void trace_clear_recursion(int bit)
 {
 	unsigned int val = current->trace_recursion;
 
-	if (!bit)
-		return;
-
-	bit--;
 	bit = 1 << bit;
 	val &= ~bit;
 
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index 2c2126e1871d4..93e20ed642e53 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -144,7 +144,7 @@ function_trace_call(unsigned long ip, unsigned long parent_ip,
 	pc = preempt_count();
 	preempt_disable_notrace();
 
-	bit = trace_test_and_set_recursion(TRACE_FTRACE_START, TRACE_FTRACE_MAX);
+	bit = trace_test_and_set_recursion(TRACE_FTRACE_START);
 	if (bit < 0)
 		goto out;
 
-- 
GitLab


From 3a845fa00fd730ae3b48e87b11794c2270a7c9ac Mon Sep 17 00:00:00 2001
From: Sasha Neftin <sasha.neftin@intel.com>
Date: Wed, 22 Sep 2021 09:54:49 +0300
Subject: [PATCH 0507/4878] e1000e: Separate TGP board type from SPT

[ Upstream commit 280db5d420090a24e4e41f9ddcbf37920a598572 ]

We have the same LAN controller on different PCHs. Separate TGP board
type from SPT which will allow for specific fixes to be applied for
TGP platforms.

Suggested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Mark Pearson <markpearson@lenovo.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/e1000e/e1000.h   |  4 ++-
 drivers/net/ethernet/intel/e1000e/ich8lan.c | 20 ++++++++++++++
 drivers/net/ethernet/intel/e1000e/netdev.c  | 29 +++++++++++----------
 3 files changed, 38 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
index 5b2143f4b1f85..3178efd980066 100644
--- a/drivers/net/ethernet/intel/e1000e/e1000.h
+++ b/drivers/net/ethernet/intel/e1000e/e1000.h
@@ -113,7 +113,8 @@ enum e1000_boards {
 	board_pch2lan,
 	board_pch_lpt,
 	board_pch_spt,
-	board_pch_cnp
+	board_pch_cnp,
+	board_pch_tgp
 };
 
 struct e1000_ps_page {
@@ -499,6 +500,7 @@ extern const struct e1000_info e1000_pch2_info;
 extern const struct e1000_info e1000_pch_lpt_info;
 extern const struct e1000_info e1000_pch_spt_info;
 extern const struct e1000_info e1000_pch_cnp_info;
+extern const struct e1000_info e1000_pch_tgp_info;
 extern const struct e1000_info e1000_es2_info;
 
 void e1000e_ptp_init(struct e1000_adapter *adapter);
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index 3cbb8d1ed67fe..b38b914f9ac6c 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -5999,3 +5999,23 @@ const struct e1000_info e1000_pch_cnp_info = {
 	.phy_ops		= &ich8_phy_ops,
 	.nvm_ops		= &spt_nvm_ops,
 };
+
+const struct e1000_info e1000_pch_tgp_info = {
+	.mac			= e1000_pch_tgp,
+	.flags			= FLAG_IS_ICH
+				  | FLAG_HAS_WOL
+				  | FLAG_HAS_HW_TIMESTAMP
+				  | FLAG_HAS_CTRLEXT_ON_LOAD
+				  | FLAG_HAS_AMT
+				  | FLAG_HAS_FLASH
+				  | FLAG_HAS_JUMBO_FRAMES
+				  | FLAG_APME_IN_WUC,
+	.flags2			= FLAG2_HAS_PHY_STATS
+				  | FLAG2_HAS_EEE,
+	.pba			= 26,
+	.max_hw_frame_size	= 9022,
+	.get_variants		= e1000_get_variants_ich8lan,
+	.mac_ops		= &ich8_mac_ops,
+	.phy_ops		= &ich8_phy_ops,
+	.nvm_ops		= &spt_nvm_ops,
+};
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 361b8d0bd78d7..d0c4de0231120 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -50,6 +50,7 @@ static const struct e1000_info *e1000_info_tbl[] = {
 	[board_pch_lpt]		= &e1000_pch_lpt_info,
 	[board_pch_spt]		= &e1000_pch_spt_info,
 	[board_pch_cnp]		= &e1000_pch_cnp_info,
+	[board_pch_tgp]		= &e1000_pch_tgp_info,
 };
 
 struct e1000_reg_info {
@@ -7837,20 +7838,20 @@ static const struct pci_device_id e1000_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V11), board_pch_cnp },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_LM12), board_pch_spt },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_CMP_I219_V12), board_pch_spt },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM13), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V13), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM14), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V14), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM15), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V15), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_LM16), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_V16), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_LM17), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_V17), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_LM18), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_V18), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_LM19), board_pch_cnp },
-	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_V19), board_pch_cnp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM13), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V13), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM14), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V14), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_LM15), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_TGP_I219_V15), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_LM16), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_V16), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_LM17), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_ADP_I219_V17), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_LM18), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_V18), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_LM19), board_pch_tgp },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_PCH_MTP_I219_V19), board_pch_tgp },
 
 	{ 0, 0, 0, 0, 0, 0, 0 }	/* terminate list */
 };
-- 
GitLab


From d088db8637bb705a987ca5a497c081089ce3ccb1 Mon Sep 17 00:00:00 2001
From: Lorenz Bauer <lmb@cloudflare.com>
Date: Mon, 25 Oct 2021 17:06:19 +0100
Subject: [PATCH 0508/4878] selftests: bpf: fix backported ASSERT_FALSE

Commit 183d9ebd449c ("selftests/bpf: Fix core_reloc test runner") causes
builds of selftests/bpf to fail on 5.10.y since the branch doesn't have the
ASSERT_FALSE macro yet. Replace ASSERT_FALSE with ASSERT_EQ.

Fixes: 183d9ebd449c ("selftests/bpf: Fix core_reloc test runner")
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/bpf/prog_tests/core_reloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index 8b641c306f263..5b52985cb60e6 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -857,7 +857,7 @@ void test_core_reloc(void)
 			goto cleanup;
 		}
 
-		if (!ASSERT_FALSE(test_case->fails, "obj_load_should_fail"))
+		if (!ASSERT_EQ(test_case->fails, false, "obj_load_should_fail"))
 			goto cleanup;
 
 		equal = memcmp(data->out, test_case->output,
-- 
GitLab


From c56c801391c3e138baffa782d31957f679f94c80 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Wed, 8 Sep 2021 19:25:59 +0100
Subject: [PATCH 0509/4878] ARM: 9122/1: select HAVE_FUTEX_CMPXCHG

commit 9d417cbe36eee7afdd85c2e871685f8dab7c2dba upstream.

tglx notes:
  This function [futex_detect_cmpxchg] is only needed when an
  architecture has to runtime discover whether the CPU supports it or
  not.  ARM has unconditional support for this, so the obvious thing to
  do is the below.

Fixes linkage failure from Clang randconfigs:
kernel/futex.o:(.text.fixup+0x5c): relocation truncated to fit: R_ARM_JUMP24 against `.init.text'
and boot failures for CONFIG_THUMB2_KERNEL.

Link: https://github.com/ClangBuiltLinux/linux/issues/325

Comments from Nick Desaulniers:

 See-also: 03b8c7b623c8 ("futex: Allow architectures to skip
 futex_atomic_cmpxchg_inatomic() test")

Reported-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org # v3.14+
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 002e0cf025f59..a0eac00e2c81a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -87,6 +87,7 @@ config ARM
 	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL && !CC_IS_CLANG
 	select HAVE_FUNCTION_TRACER if !XIP_KERNEL
+	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_GCC_PLUGINS
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)
 	select HAVE_IDE if PCI || ISA || PCMCIA
-- 
GitLab


From cfa79faf7e1ffa93e76461c7716864377bff76bd Mon Sep 17 00:00:00 2001
From: Fabien Dessenne <fabien.dessenne@foss.st.com>
Date: Fri, 8 Oct 2021 14:25:17 +0200
Subject: [PATCH 0510/4878] pinctrl: stm32: use valid pin identifier in
 stm32_pinctrl_resume()

commit c370bb474016ab9edfdabd7c08a88dd13a71ddbd upstream.

When resuming from low power, the driver attempts to restore the
configuration of some pins. This is done by a call to:
  stm32_pinctrl_restore_gpio_regs(struct stm32_pinctrl *pctl, u32 pin)
where 'pin' must be a valid pin value (i.e. matching some 'groups->pin').
Fix the current implementation which uses some wrong 'pin' value.

Fixes: e2f3cf18c3e2 ("pinctrl: stm32: add suspend/resume management")
Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Link: https://lore.kernel.org/r/20211008122517.617633-1-fabien.dessenne@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/stm32/pinctrl-stm32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index 3af4430543dca..a5f1f6ba74392 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1645,8 +1645,8 @@ int __maybe_unused stm32_pinctrl_resume(struct device *dev)
 	struct stm32_pinctrl_group *g = pctl->groups;
 	int i;
 
-	for (i = g->pin; i < g->pin + pctl->ngroups; i++)
-		stm32_pinctrl_restore_gpio_regs(pctl, i);
+	for (i = 0; i < pctl->ngroups; i++, g++)
+		stm32_pinctrl_restore_gpio_regs(pctl, g->pin);
 
 	return 0;
 }
-- 
GitLab


From 378e85d1aeb5c93db43f2089630ec40c7385bd54 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 27 Oct 2021 09:56:57 +0200
Subject: [PATCH 0511/4878] Linux 5.10.76

Link: https://lore.kernel.org/r/20211025190956.374447057@linuxfoundation.org
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 74318cf964b89..605bd943b224e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 75
+SUBLEVEL = 76
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From ca61e9c59a402798beca69ba20a1d05ef244ad6c Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@google.com>
Date: Wed, 27 Oct 2021 09:07:09 -0700
Subject: [PATCH 0512/4878] ANDROID: f2fs: fix potential deadlock by android
 ftrace

sb_internal#2 --> &s->s_dquot.dqio_sem --> fs_reclaim

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(fs_reclaim);
                                lock(&s->s_dquot.dqio_sem);
                                lock(fs_reclaim);
   lock(sb_internal#2);

 *** DEADLOCK ***

 3 locks held by kswapd0/133:
  #0: ffffffda597c93a8 (fs_reclaim){+.+.}-{0:0}, at: __fs_reclaim_acquire+0x4/0x50
  #1: ffffffda597bc890 (shrinker_rwsem){++++}-{3:3}, at: shrink_slab+0xa0/0x19c
  #2: ffffff80d5fb90e0 (&type->s_umount_key#50){.+.+}-{3:3}, at: super_cache_scan+0x40/0x1dc

stack backtrace:
 CPU: 7 PID: 133 Comm: kswapd0 Tainted: G        W  O      5.10.43-android12-9-g4665ec64f3df #1
 Hardware name: MT6879(ENG) (DT)
 Call trace:
  dump_backtrace.cfi_jt+0x0/0x8
  show_stack+0x1c/0x2c
  dump_stack_lvl+0xd8/0x16c
  print_circular_bug+0x2d4/0x2d8
  check_noncircular+0x190/0x1a4
  validate_chain+0xc54/0x2d34
  __lock_acquire+0x7e4/0xed4
  lock_acquire+0x114/0x394
  f2fs_evict_inode+0x1a0/0x8b8
  evict+0xd4/0x2f8
  iput+0x1c0/0x258
  dentry_unlink_inode+0x16c/0x1dc
  __dentry_kill+0x128/0x280
  shrink_dentry_list+0x6c/0x420
  prune_dcache_sb+0x5c/0x90
  super_cache_scan+0x13c/0x1dc
  do_shrink_slab+0x1e0/0x388
  shrink_slab+0xf4/0x19c
  shrink_node_memcgs+0x80/0x25c
  shrink_node+0x324/0x710
  balance_pgdat+0x3a8/0x6a8
  kswapd+0x484/0x594
  kthread+0x15c/0x1ac
  ret_from_fork+0x10/0x30

Bug: 201025620
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: Idaa303eb7c681a56ad5d4e1f6dddbda71f7fece4
---
 fs/f2fs/data.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 8e0e0e4eaa27b..e86ebe117128b 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3386,7 +3386,13 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
 	block_t blkaddr = NULL_ADDR;
 	int err = 0;
 
-	if (trace_android_fs_datawrite_start_enabled()) {
+	/*
+	 * Should avoid quota operations which can make deadlock:
+	 * kswapd -> f2fs_evict_inode -> dquot_drop ->
+	 *   f2fs_dquot_commit -> f2fs_write_begin ->
+	 *   d_obtain_alias -> __d_alloc -> kmem_cache_alloc(GFP_KERNEL)
+	 */
+	if (trace_android_fs_datawrite_start_enabled() && !IS_NOQUOTA(inode)) {
 		char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];
 
 		path = android_fstrace_get_pathname(pathbuf,
-- 
GitLab


From 54aecb72dba94d1bb68844af6e4790b5823fb6ce Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 27 Oct 2021 12:01:42 -0700
Subject: [PATCH 0513/4878] ANDROID: fips140: remove in-place updating of live
 algorithms

The lab has confirmed that it is actually fine for users to keep using
non-FIPS code after the module has loaded if they were already using it
beforehand.  So remove the code that tried to prevent this by updating
live algorithms in-place.  Similarly, remove the call to
synchronize_rcu_tasks() which no longer has any purpose.

We still need to move the live algorithms to a private list, so keep
doing that.  Keep appending "+orig" to cra_name as well, and start doing
the same for cra_driver_name too.

Bug: 188620248
Change-Id: I29c9faec7d7314484a03f9729924b2f892552c7c
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-module.c | 247 ++++++++--------------------------------
 1 file changed, 46 insertions(+), 201 deletions(-)

diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 31df2b1e006f9..61b90f6c7b8d2 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -130,7 +130,7 @@ static bool __init is_fips140_algo(struct crypto_alg *alg)
 	return false;
 }
 
-static LIST_HEAD(unchecked_fips140_algos);
+static LIST_HEAD(existing_live_algos);
 
 /*
  * Release a list of algorithms which have been removed from crypto_alg_list.
@@ -173,38 +173,53 @@ static void __init unregister_existing_fips140_algos(void)
 	down_write(&crypto_alg_sem);
 
 	/*
-	 * Find all registered algorithms that we care about, and move them to
-	 * a private list so that they are no longer exposed via the algo
-	 * lookup API. Subsequently, we will unregister them if they are not in
-	 * active use. If they are, we cannot simply remove them but we can
-	 * adapt them later to use our integrity checked backing code.
+	 * Find all registered algorithms that we care about, and move them to a
+	 * private list so that they are no longer exposed via the algo lookup
+	 * API. Subsequently, we will unregister them if they are not in active
+	 * use. If they are, we can't fully unregister them but we can ensure
+	 * that new users won't use them.
 	 */
 	list_for_each_entry_safe(alg, tmp, &crypto_alg_list, cra_list) {
-		if (is_fips140_algo(alg)) {
-			if (refcount_read(&alg->cra_refcnt) == 1) {
-				/*
-				 * This algorithm is not currently in use, but
-				 * there may be template instances holding
-				 * references to it via spawns. So let's tear
-				 * it down like crypto_unregister_alg() would,
-				 * but without releasing the lock, to prevent
-				 * races with concurrent TFM allocations.
-				 */
-				alg->cra_flags |= CRYPTO_ALG_DEAD;
-				list_move(&alg->cra_list, &remove_list);
-				crypto_remove_spawns(alg, &spawns, NULL);
-			} else {
-				/*
-				 * This algorithm is live, i.e., there are TFMs
-				 * allocated that rely on it for its crypto
-				 * transformations. We will swap these out
-				 * later with integrity checked versions.
-				 */
-				pr_info("found already-live algorithm '%s' ('%s')\n",
-					alg->cra_name, alg->cra_driver_name);
-				list_move(&alg->cra_list,
-					  &unchecked_fips140_algos);
-			}
+		if (!is_fips140_algo(alg))
+			continue;
+		if (refcount_read(&alg->cra_refcnt) == 1) {
+			/*
+			 * This algorithm is not currently in use, but there may
+			 * be template instances holding references to it via
+			 * spawns. So let's tear it down like
+			 * crypto_unregister_alg() would, but without releasing
+			 * the lock, to prevent races with concurrent TFM
+			 * allocations.
+			 */
+			alg->cra_flags |= CRYPTO_ALG_DEAD;
+			list_move(&alg->cra_list, &remove_list);
+			crypto_remove_spawns(alg, &spawns, NULL);
+		} else {
+			/*
+			 * This algorithm is live, i.e. it has TFMs allocated,
+			 * so we can't fully unregister it.  It's not necessary
+			 * to dynamically redirect existing users to the FIPS
+			 * code, given that they can't be relying on FIPS
+			 * certified crypto in the first place.  However, we do
+			 * need to ensure that new users will get the FIPS code.
+			 *
+			 * In most cases, setting alg->cra_priority to 0
+			 * achieves this.  However, that isn't enough for
+			 * algorithms like "hmac(sha256)" that need to be
+			 * instantiated from a template, since existing
+			 * algorithms always take priority over a template being
+			 * instantiated.  Therefore, we move the algorithm to
+			 * a private list so that algorithm lookups won't find
+			 * it anymore.  To further distinguish it from the FIPS
+			 * algorithms, we also append "+orig" to its name.
+			 */
+			pr_info("found already-live algorithm '%s' ('%s')\n",
+				alg->cra_name, alg->cra_driver_name);
+			alg->cra_priority = 0;
+			strlcat(alg->cra_name, "+orig", CRYPTO_MAX_ALG_NAME);
+			strlcat(alg->cra_driver_name, "+orig",
+				CRYPTO_MAX_ALG_NAME);
+			list_move(&alg->cra_list, &existing_live_algos);
 		}
 	}
 	up_write(&crypto_alg_sem);
@@ -355,166 +370,6 @@ static bool __init check_fips140_module_hmac(void)
 	return true;
 }
 
-static bool __init update_live_fips140_algos(void)
-{
-	struct crypto_alg *alg, *new_alg, *tmp;
-
-	/*
-	 * Find all algorithms that we could not unregister the last time
-	 * around, due to the fact that they were already in use.
-	 */
-	down_write(&crypto_alg_sem);
-	list_for_each_entry_safe(alg, tmp, &unchecked_fips140_algos, cra_list) {
-
-		/*
-		 * Take this algo off the list before releasing the lock. This
-		 * ensures that a concurrent invocation of
-		 * crypto_unregister_alg() observes a consistent state, i.e.,
-		 * the algo is still on the list, and crypto_unregister_alg()
-		 * will release it, or it is not, and crypto_unregister_alg()
-		 * will issue a warning but ignore this condition otherwise.
-		 */
-		list_del_init(&alg->cra_list);
-		up_write(&crypto_alg_sem);
-
-		/*
-		 * Grab the algo that will replace the live one.
-		 * Note that this will instantiate template based instances as
-		 * well, as long as their driver name uses the conventional
-		 * pattern of "template(algo)". In this case, we are relying on
-		 * the fact that the templates carried by this module will
-		 * supersede the builtin ones, due to the fact that they were
-		 * registered later, and therefore appear first in the linked
-		 * list. For example, "hmac(sha1-ce)" constructed using the
-		 * builtin hmac template and the builtin SHA1 driver will be
-		 * superseded by the integrity checked versions of HMAC and
-		 * SHA1-ce carried in this module.
-		 *
-		 * Note that this takes a reference to the new algorithm which
-		 * will never get released. This is intentional: once we copy
-		 * the function pointers from the new algo into the old one, we
-		 * cannot drop the new algo unless we are sure that the old one
-		 * has been released, and this is someting we don't keep track
-		 * of at the moment.
-		 */
-		new_alg = crypto_alg_mod_lookup(alg->cra_driver_name,
-						alg->cra_flags & CRYPTO_ALG_TYPE_MASK,
-						CRYPTO_ALG_TYPE_MASK | CRYPTO_NOLOAD);
-
-		if (IS_ERR(new_alg)) {
-			pr_crit("Failed to allocate '%s' for updating live algo (%ld)\n",
-				alg->cra_driver_name, PTR_ERR(new_alg));
-			return false;
-		}
-
-		/*
-		 * The FIPS module's algorithms are expected to be built from
-		 * the same source code as the in-kernel ones so that they are
-		 * fully compatible. In general, there's no way to verify full
-		 * compatibility at runtime, but we can at least verify that
-		 * the algorithm properties match.
-		 */
-		if (alg->cra_ctxsize != new_alg->cra_ctxsize ||
-		    alg->cra_alignmask != new_alg->cra_alignmask) {
-			pr_crit("Failed to update live algo '%s' due to mismatch:\n"
-				"cra_ctxsize   : %u vs %u\n"
-				"cra_alignmask : 0x%x vs 0x%x\n",
-				alg->cra_driver_name,
-				alg->cra_ctxsize, new_alg->cra_ctxsize,
-				alg->cra_alignmask, new_alg->cra_alignmask);
-			return false;
-		}
-
-		/*
-		 * Update the name and priority so the algorithm stands out as
-		 * one that was updated in order to comply with FIPS140, and
-		 * that it is not the preferred version for further use.
-		 */
-		strlcat(alg->cra_name, "+orig", CRYPTO_MAX_ALG_NAME);
-		alg->cra_priority = 0;
-
-		switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
-			struct aead_alg *old_aead, *new_aead;
-			struct skcipher_alg *old_skcipher, *new_skcipher;
-			struct shash_alg *old_shash, *new_shash;
-			struct rng_alg *old_rng, *new_rng;
-
-		case CRYPTO_ALG_TYPE_CIPHER:
-			alg->cra_u.cipher = new_alg->cra_u.cipher;
-			break;
-
-		case CRYPTO_ALG_TYPE_AEAD:
-			old_aead = container_of(alg, struct aead_alg, base);
-			new_aead = container_of(new_alg, struct aead_alg, base);
-
-			old_aead->setkey	= new_aead->setkey;
-			old_aead->setauthsize	= new_aead->setauthsize;
-			old_aead->encrypt	= new_aead->encrypt;
-			old_aead->decrypt	= new_aead->decrypt;
-			old_aead->init		= new_aead->init;
-			old_aead->exit		= new_aead->exit;
-			break;
-
-		case CRYPTO_ALG_TYPE_SKCIPHER:
-			old_skcipher = container_of(alg, struct skcipher_alg, base);
-			new_skcipher = container_of(new_alg, struct skcipher_alg, base);
-
-			old_skcipher->setkey	= new_skcipher->setkey;
-			old_skcipher->encrypt	= new_skcipher->encrypt;
-			old_skcipher->decrypt	= new_skcipher->decrypt;
-			old_skcipher->init	= new_skcipher->init;
-			old_skcipher->exit	= new_skcipher->exit;
-			break;
-
-		case CRYPTO_ALG_TYPE_SHASH:
-			old_shash = container_of(alg, struct shash_alg, base);
-			new_shash = container_of(new_alg, struct shash_alg, base);
-
-			old_shash->init		= new_shash->init;
-			old_shash->update	= new_shash->update;
-			old_shash->final	= new_shash->final;
-			old_shash->finup	= new_shash->finup;
-			old_shash->digest	= new_shash->digest;
-			old_shash->export	= new_shash->export;
-			old_shash->import	= new_shash->import;
-			old_shash->setkey	= new_shash->setkey;
-			old_shash->init_tfm	= new_shash->init_tfm;
-			old_shash->exit_tfm	= new_shash->exit_tfm;
-			break;
-
-		case CRYPTO_ALG_TYPE_RNG:
-			old_rng = container_of(alg, struct rng_alg, base);
-			new_rng = container_of(new_alg, struct rng_alg, base);
-
-			old_rng->generate	= new_rng->generate;
-			old_rng->seed		= new_rng->seed;
-			old_rng->set_ent	= new_rng->set_ent;
-			break;
-		default:
-			/*
-			 * This should never happen: every item on the
-			 * fips140_algorithms list should match one of the
-			 * cases above, so if we end up here, something is
-			 * definitely wrong.
-			 */
-			pr_crit("Unexpected type %u for algo %s, giving up ...\n",
-				alg->cra_flags & CRYPTO_ALG_TYPE_MASK,
-				alg->cra_driver_name);
-			return false;
-		}
-
-		/*
-		 * Move the algorithm back to the algorithm list, so it is
-		 * visible in /proc/crypto et al.
-		 */
-		down_write(&crypto_alg_sem);
-		list_add_tail(&alg->cra_list, &crypto_alg_list);
-	}
-	up_write(&crypto_alg_sem);
-
-	return true;
-}
-
 static void fips140_sha256(void *p, const u8 *data, unsigned int len, u8 *out,
 			   int *hook_inuse)
 {
@@ -613,19 +468,9 @@ fips140_init(void)
 
 	complete_all(&fips140_tests_done);
 
-	if (!update_live_fips140_algos())
-		goto panic;
-
 	if (!update_fips140_library_routines())
 		goto panic;
 
-	/*
-	 * Wait until all tasks have at least been scheduled once and preempted
-	 * voluntarily. This ensures that none of the superseded algorithms that
-	 * were already in use will still be live.
-	 */
-	synchronize_rcu_tasks();
-
 	pr_info("module successfully loaded\n");
 	return 0;
 
-- 
GitLab


From 80f6f4d3c4cb296e2dae66ee1fe2c54549cda4bc Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 27 Oct 2021 13:07:45 -0700
Subject: [PATCH 0514/4878] ANDROID: ABI: update fips140 symbol list

Generated by running:

    BUILD_CONFIG=common/build.config.gki.aarch64.fips140 build/build_abi.sh --update-symbol-list

Bug: 188620248
Change-Id: I4032f0659e4d52586196711ba9a7714c4f26c95b
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 android/abi_gki_aarch64_fips140 | 2 --
 1 file changed, 2 deletions(-)

diff --git a/android/abi_gki_aarch64_fips140 b/android/abi_gki_aarch64_fips140
index 9706be74a95a6..361966d132626 100644
--- a/android/abi_gki_aarch64_fips140
+++ b/android/abi_gki_aarch64_fips140
@@ -21,7 +21,6 @@
   crypto_ahash_finup
   crypto_ahash_setkey
   crypto_alg_list
-  crypto_alg_mod_lookup
   crypto_alg_sem
   crypto_alloc_aead
   crypto_alloc_base
@@ -132,7 +131,6 @@
   strlcpy
   strlen
   strncmp
-  synchronize_rcu_tasks
   system_wq
   __traceiter_android_vh_aes_decrypt
   __traceiter_android_vh_aes_encrypt
-- 
GitLab


From c14d52059bd86d27ce3c8e581196b011d0cc4d32 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 27 Oct 2021 15:22:43 -0700
Subject: [PATCH 0515/4878] ANDROID: fips140: zeroize temporary values from
 integrity check

FIPS 140-3 requires this for some reason.

Bug: 188620248
Change-Id: I7c286532097e1d8971faf4d8be31b801f9007e3b
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-module.c | 42 ++++++++++++++++++++++++++---------------
 1 file changed, 27 insertions(+), 15 deletions(-)

diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 61b90f6c7b8d2..951fc8ea82555 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -301,10 +301,12 @@ extern struct {
 
 static bool __init check_fips140_module_hmac(void)
 {
+	struct crypto_shash *tfm = NULL;
 	SHASH_DESC_ON_STACK(desc, dontcare);
 	u8 digest[SHA256_DIGEST_SIZE];
 	void *textcopy, *rodatacopy;
 	int textsize, rodatasize;
+	bool ok = false;
 	int err;
 
 	textsize	= &__fips140_text_end - &__fips140_text_start;
@@ -316,7 +318,7 @@ static bool __init check_fips140_module_hmac(void)
 	textcopy = kmalloc(textsize + rodatasize, GFP_KERNEL);
 	if (!textcopy) {
 		pr_err("Failed to allocate memory for copy of .text\n");
-		return false;
+		goto out;
 	}
 
 	rodatacopy = textcopy + textsize;
@@ -333,28 +335,29 @@ static bool __init check_fips140_module_hmac(void)
 				  offset_to_ptr(&fips140_rela_rodata.offset),
 				  fips140_rela_rodata.count);
 
-	desc->tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);
-	if (IS_ERR(desc->tfm)) {
-		pr_err("failed to allocate hmac tfm (%ld)\n", PTR_ERR(desc->tfm));
-		kfree(textcopy);
-		return false;
+	tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);
+	if (IS_ERR(tfm)) {
+		pr_err("failed to allocate hmac tfm (%ld)\n", PTR_ERR(tfm));
+		tfm = NULL;
+		goto out;
 	}
+	desc->tfm = tfm;
 
 	pr_info("using '%s' for integrity check\n",
-		crypto_shash_driver_name(desc->tfm));
+		crypto_shash_driver_name(tfm));
 
-	err = crypto_shash_setkey(desc->tfm, fips140_integ_hmac_key,
+	err = crypto_shash_setkey(tfm, fips140_integ_hmac_key,
 				  strlen(fips140_integ_hmac_key)) ?:
 	      crypto_shash_init(desc) ?:
 	      crypto_shash_update(desc, textcopy, textsize) ?:
 	      crypto_shash_finup(desc, rodatacopy, rodatasize, digest);
 
-	crypto_free_shash(desc->tfm);
-	kfree(textcopy);
+	/* Zeroizing this is important; see the comment below. */
+	shash_desc_zero(desc);
 
 	if (err) {
 		pr_err("failed to calculate hmac shash (%d)\n", err);
-		return false;
+		goto out;
 	}
 
 	if (memcmp(digest, fips140_integ_hmac_digest, sizeof(digest))) {
@@ -363,11 +366,20 @@ static bool __init check_fips140_module_hmac(void)
 
 		pr_err("calculated digest: %*phN\n", (int)sizeof(digest),
 		       digest);
-
-		return false;
+		goto out;
 	}
-
-	return true;
+	ok = true;
+out:
+	/*
+	 * FIPS 140-3 requires that all "temporary value(s) generated during the
+	 * integrity test" be zeroized (ref: FIPS 140-3 IG 9.7.B).  There is no
+	 * technical reason to do this given that these values are public
+	 * information, but this is the requirement so we follow it.
+	 */
+	crypto_free_shash(tfm);
+	memzero_explicit(digest, sizeof(digest));
+	kfree_sensitive(textcopy);
+	return ok;
 }
 
 static void fips140_sha256(void *p, const u8 *data, unsigned int len, u8 *out,
-- 
GitLab


From 9b049759c803e803016372aee168111dae30afe5 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 5 Oct 2021 10:01:41 +0100
Subject: [PATCH 0516/4878] UPSTREAM: KVM: arm64: Fix host stage-2 PGD refcount

The KVM page-table library refcounts the pages of concatenated stage-2
PGDs individually. However, when running KVM in protected mode, the
host's stage-2 PGD is currently managed by EL2 as a single high-order
compound page, which can cause the refcount of the tail pages to reach 0
when they shouldn't, hence corrupting the page-table.

Fix this by introducing a new hyp_split_page() helper in the EL2 page
allocator (matching the kernel's split_page() function), and make use of
it from host_s2_zalloc_pages_exact().

Fixes: 1025c8c0c6ac ("KVM: arm64: Wrap the host with a stage 2")
Acked-by: Will Deacon <will@kernel.org>
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005090155.734578-5-qperret@google.com
(cherry picked from commit 1d58a17ef54599506d44c45ac95be27273a4d2b1)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: Id4ce111f77a558dc55b857f827fc961aa80b1d8e
---
 arch/arm64/kvm/hyp/include/nvhe/gfp.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 13 ++++++++++++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c  | 14 ++++++++++++++
 3 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/gfp.h b/arch/arm64/kvm/hyp/include/nvhe/gfp.h
index fb0f523d14921..0a048dc06a7d7 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/gfp.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/gfp.h
@@ -24,6 +24,7 @@ struct hyp_pool {
 
 /* Allocation */
 void *hyp_alloc_pages(struct hyp_pool *pool, unsigned short order);
+void hyp_split_page(struct hyp_page *page);
 void hyp_get_page(struct hyp_pool *pool, void *addr);
 void hyp_put_page(struct hyp_pool *pool, void *addr);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index bacd493a4eacd..34eeb524b6860 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -35,7 +35,18 @@ const u8 pkvm_hyp_id = 1;
 
 static void *host_s2_zalloc_pages_exact(size_t size)
 {
-	return hyp_alloc_pages(&host_s2_pool, get_order(size));
+	void *addr = hyp_alloc_pages(&host_s2_pool, get_order(size));
+
+	hyp_split_page(hyp_virt_to_page(addr));
+
+	/*
+	 * The size of concatenated PGDs is always a power of two of PAGE_SIZE,
+	 * so there should be no need to free any of the tail pages to make the
+	 * allocation exact.
+	 */
+	WARN_ON(size != (PAGE_SIZE << get_order(size)));
+
+	return addr;
 }
 
 static void *host_s2_zalloc_page(void *pool)
diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index 41fc25bdfb346..a6e874e61a40e 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -193,6 +193,20 @@ void hyp_get_page(struct hyp_pool *pool, void *addr)
 	hyp_spin_unlock(&pool->lock);
 }
 
+void hyp_split_page(struct hyp_page *p)
+{
+	unsigned short order = p->order;
+	unsigned int i;
+
+	p->order = 0;
+	for (i = 1; i < (1 << order); i++) {
+		struct hyp_page *tail = p + i;
+
+		tail->order = 0;
+		hyp_set_page_refcounted(tail);
+	}
+}
+
 void *hyp_alloc_pages(struct hyp_pool *pool, unsigned short order)
 {
 	unsigned short i = order;
-- 
GitLab


From ea1c63bab1b44d88bb3e48dbf6a5f5a947beada5 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 5 Oct 2021 10:01:42 +0100
Subject: [PATCH 0517/4878] UPSTREAM: KVM: arm64: Report corrupted refcount at
 EL2

Some of the refcount manipulation helpers used at EL2 are instrumented
to catch a corrupted state, but not all of them are treated equally. Let's
make things more consistent by instrumenting hyp_page_ref_dec_and_test()
as well.

Acked-by: Will Deacon <will@kernel.org>
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005090155.734578-6-qperret@google.com
(cherry picked from commit 7615c2a514788559c6684234b8fc27f3a843c2c6)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: I68831927545cd1050900096be319f5b0dcb96576
---
 arch/arm64/kvm/hyp/nvhe/page_alloc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index a6e874e61a40e..0bd7701ad1df5 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -152,6 +152,7 @@ static inline void hyp_page_ref_inc(struct hyp_page *p)
 
 static inline int hyp_page_ref_dec_and_test(struct hyp_page *p)
 {
+	BUG_ON(!p->refcount);
 	p->refcount--;
 	return (p->refcount == 0);
 }
-- 
GitLab


From 6abd817eac42cd8849dd9866f105f6f3c3a6df8e Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 5 Oct 2021 13:20:31 +0100
Subject: [PATCH 0518/4878] UPSTREAM: KVM: arm64: Release mmap_lock when using
 VM_SHARED with MTE

VM_SHARED mappings are currently forbidden in a memslot with MTE to
prevent two VMs racing to sanitise the same page. However, this check
is performed while holding current->mm's mmap_lock, but fails to release
it. Fix this by releasing the lock when needed.

Fixes: ea7fc1bb1cd1 ("KVM: arm64: Introduce MTE VM feature")
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005122031.809857-1-qperret@google.com
(cherry picked from commit 6e6a8ef088e1222cb1250942f51ad9c1ab219ab2)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: Ie1f956d5c33c2ecff832114216ae4cc509371ddb
---
 arch/arm64/kvm/mmu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 98c6c38ac8a85..f16fe3dc5639f 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1586,8 +1586,10 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 		 * when updating the PG_mte_tagged page flag, see
 		 * sanitise_mte_tags for more details.
 		 */
-		if (kvm_has_mte(kvm) && vma->vm_flags & VM_SHARED)
-			return -EINVAL;
+		if (kvm_has_mte(kvm) && vma->vm_flags & VM_SHARED) {
+			ret = -EINVAL;
+			break;
+		}
 
 		if (vma->vm_flags & VM_PFNMAP) {
 			/* IO region dirty page logging not allowed */
-- 
GitLab


From df4c5491ab63f12af02891fceceb5d56faddf087 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 22 Oct 2021 19:07:29 +0100
Subject: [PATCH 0519/4878] ANDROID: Incremental fs: Fix dentry get/put
 imbalance on vfs_mkdir() failure

Syz{bot,kaller} reports[0]:

  BUG: Dentry ffff888119d8a000{i=0,n=.index}  still in use (1) [unmount of ramfs ramfs]
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 367 at fs/dcache.c:1616 umount_check+0x18d/0x1d0 fs/dcache.c:1607
  Modules linked in:
  CPU: 0 PID: 367 Comm: syz-executor388 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0
  Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  RIP: 0010:umount_check+0x18d/0x1d0 fs/dcache.c:1607
  Code: 8b 0b 49 81 c6 f8 03 00 00 48 c7 c7 00 40 2e 85 4c 89 e6 48 8b 55 d0 4c 89 e1 45 89 f8 31 c0 41 56 e8 ae d9 9e ff 48 83 c4 08 <0f> 0b e9 f1 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c9 fe ff
  RSP: 0018:ffffc9000096f770 EFLAGS: 00010292
  RAX: 0000000000000055 RBX: ffffffff866af200 RCX: 1ad6b89836e5b500
  RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
  RBP: ffffc9000096f7a0 R08: ffffffff81545368 R09: 0000000000000003
  R10: fffff5200012de41 R11: 0000000000000004 R12: ffff888119d8a000
  R13: dffffc0000000000 R14: ffff88811d7373f8 R15: 0000000000000001
  FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007f01b7bddb68 CR3: 000000010c4f0000 CR4: 00000000003506b0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Call Trace:
   d_walk+0x309/0x540 fs/dcache.c:1326
   do_one_tree fs/dcache.c:1623 [inline]
   shrink_dcache_for_umount+0x8e/0x1b0 fs/dcache.c:1639
   generic_shutdown_super+0x66/0x2c0 fs/super.c:447
   kill_anon_super fs/super.c:1108 [inline]
   kill_litter_super+0x75/0xa0 fs/super.c:1117
   ramfs_kill_sb+0x44/0x50 fs/ramfs/inode.c:270
   deactivate_locked_super+0xb0/0x100 fs/super.c:335
   deactivate_super+0xa5/0xd0 fs/super.c:366
   cleanup_mnt+0x45f/0x510 fs/namespace.c:1118
   __cleanup_mnt+0x19/0x20 fs/namespace.c:1125
   task_work_run+0x147/0x1b0 kernel/task_work.c:154
   exit_task_work include/linux/task_work.h:30 [inline]
   do_exit+0x70e/0x23a0 kernel/exit.c:813
   do_group_exit+0x16a/0x2d0 kernel/exit.c:910
   get_signal+0x133e/0x1f80 kernel/signal.c:2790
   arch_do_signal+0x8d/0x620 arch/x86/kernel/signal.c:805
   exit_to_user_mode_loop kernel/entry/common.c:161 [inline]
   exit_to_user_mode_prepare+0xaa/0xe0 kernel/entry/common.c:191
   syscall_exit_to_user_mode+0x24/0x40 kernel/entry/common.c:266
   do_syscall_64+0x3d/0x70 arch/x86/entry/common.c:56
   entry_SYSCALL_64_after_hwframe+0x44/0xa9
  RIP: 0033:0x7f01b7b884f9
  Code: Unable to access opcode bytes at RIP 0x7f01b7b884cf.
  RSP: 002b:00007f01b7b19308 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
  RAX: fffffffffffffe00 RBX: 00007f01b7c103f8 RCX: 00007f

Which was due to a missing dput() before returning from a vfs_mkdir() failure.

Bug: 203827798
Link: [0] https://syzkaller.appspot.com/bug?extid=81b5ca9b2848f4dad8fa
Reported-by: syzbot+81b5ca9b2848f4dad8fa@syzkaller.appspotmail.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: Iaef9aa0aecc964645aaca5fe8d79388ae28527bd
---
 fs/incfs/vfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
index 0650ee90f8b1e..ea7866fbfd6e1 100644
--- a/fs/incfs/vfs.c
+++ b/fs/incfs/vfs.c
@@ -458,8 +458,10 @@ static struct dentry *open_or_create_special_dir(struct dentry *backing_dir,
 	err = vfs_mkdir(backing_inode, index_dentry, 0777);
 	inode_unlock(backing_inode);
 
-	if (err)
+	if (err) {
+		dput(index_dentry);
 		return ERR_PTR(err);
+	}
 
 	if (!d_really_is_positive(index_dentry) ||
 		unlikely(d_unhashed(index_dentry))) {
-- 
GitLab


From b6fbc2e7e573b1c75a195d067cd7ee6e6e933bba Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 29 Oct 2021 11:00:34 -0700
Subject: [PATCH 0520/4878] ANDROID: Fix mmu_notifier imbalance

SPF patchset introduced an mmu_notifier imbalance by adding a new exit
path that skips mmu_notifier_invalidate_range_only_end after calling
mmu_notifier_invalidate_range_start. This triggers a BUG in KVM driver
checking for mmu_notifier_count to remain balanced

Fixes: afeec97a8dfc ("FROMLIST: mm: prepare for FAULT_FLAG_SPECULATIVE")
Bug: 161210518
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ibe9d1f0903a23b48c9d733b81249b190e5321c2f
---
 mm/memory.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index 097bf967a0479..e9845afdbf7fe 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3159,7 +3159,7 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
 	 */
 	if (!pte_map_lock(vmf)) {
 		ret = VM_FAULT_RETRY;
-		goto out_free_new;
+		goto out_invalidate_end;
 	}
 	if (likely(pte_same(*vmf->pte, vmf->orig_pte))) {
 		if (old_page) {
@@ -3247,6 +3247,8 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
 		put_page(old_page);
 	}
 	return page_copied ? VM_FAULT_WRITE : 0;
+out_invalidate_end:
+	mmu_notifier_invalidate_range_only_end(&range);
 out_free_new:
 	put_page(new_page);
 out:
-- 
GitLab


From 68e090ac4b31d16fc9d55ee2a2ce0f5aaca2051d Mon Sep 17 00:00:00 2001
From: Wesley Cheng <quic_wcheng@quicinc.com>
Date: Tue, 26 Oct 2021 19:30:38 -0700
Subject: [PATCH 0521/4878] FROMGIT: usb: gadget: udc: core: Revise comments
 for USB ep enable/disable

The usb_ep_disable() and usb_ep_enable() routines are being widely
used in atomic/interrupt context by function drivers.  Hence, the
statement about it being able to only run in process context may
not be true.  Add an explicit comment mentioning that it can be used
in atomic context.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>

Bug: 204343836
(cherry picked from commit b0d5d2a71641bb50cada708cc8fdca946a837e9a
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing)
Change-Id: I1adb5d074fe2f9e33ebfdb30d335283c56bc7b39
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 drivers/usb/gadget/udc/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index edb83c8825de9..24d0ace3ed3c2 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -89,7 +89,7 @@ EXPORT_SYMBOL_GPL(usb_ep_set_maxpacket_limit);
  * configurable, with more generic names like "ep-a".  (remember that for
  * USB, "in" means "towards the USB host".)
  *
- * This routine must be called in process context.
+ * This routine may be called in an atomic (interrupt) context.
  *
  * returns zero, or a negative error code.
  */
@@ -134,7 +134,7 @@ EXPORT_SYMBOL_GPL(usb_ep_enable);
  * gadget drivers must call usb_ep_enable() again before queueing
  * requests to the endpoint.
  *
- * This routine must be called in process context.
+ * This routine may be called in an atomic (interrupt) context.
  *
  * returns zero, or a negative error code.
  */
-- 
GitLab


From 5350b8fef2a685a6375ead0538e170c176a7c8f3 Mon Sep 17 00:00:00 2001
From: Wesley Cheng <quic_wcheng@quicinc.com>
Date: Wed, 27 Oct 2021 13:00:37 -0700
Subject: [PATCH 0522/4878] FROMGIT: usb: gadget: f_mass_storage: Disable eps
 during disconnect

When receiving a disconnect event from the UDC, the mass storage
function driver currently runs the handle_exception() routine
asynchronously.  For UDCs that support runtime PM, there is a
possibility the UDC is already suspended by the time the
do_set_interface() is executed.  This can lead to HW register access
while the UDC is already suspended.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>

Bug: 204343836
(cherry picked from commit 9fff139aeb11186fd8e75860c959c86cb43ab2f6
 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing)
Change-Id: I6c8011baddf02d6b0eadb5934416bc24b8a93f4a
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 drivers/usb/gadget/function/f_mass_storage.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 950c9435beec3..73a28f8a38a7e 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -2301,6 +2301,16 @@ static void fsg_disable(struct usb_function *f)
 {
 	struct fsg_dev *fsg = fsg_from_func(f);
 
+	/* Disable the endpoints */
+	if (fsg->bulk_in_enabled) {
+		usb_ep_disable(fsg->bulk_in);
+		fsg->bulk_in_enabled = 0;
+	}
+	if (fsg->bulk_out_enabled) {
+		usb_ep_disable(fsg->bulk_out);
+		fsg->bulk_out_enabled = 0;
+	}
+
 	__raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE, NULL);
 }
 
-- 
GitLab


From ca321442a517262edec97228a229c3f92b8f79cf Mon Sep 17 00:00:00 2001
From: Konstantin Vyshetsky <vkon@google.com>
Date: Wed, 25 Aug 2021 15:42:09 -0700
Subject: [PATCH 0523/4878] ANDROID: scsi: ufs: add complete init vendor hook

Currently the core UFS driver does not have a vops to notify when the
device is operational. This commit introduces a hook, which serves to
notify device completing initialization and is ready to accept I/O.

This is required by the FIPS140-2 [1] self integrity test of inline
encryption engine, which must run whenever the host controller is reset.
The code requires sleeping while waiting for I/O to complete and allocating
some memory dynamically, which requires the vendor hook to be restricted.

[1] https://csrc.nist.gov/publications/detail/fips/140/2/final

Bug: 185809932
Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Change-Id: I6f476f9c2e2b50574d2898c3f1ef6b648d92df24
---
 drivers/android/vendor_hooks.c | 1 +
 drivers/scsi/ufs/ufshcd.c      | 2 ++
 include/trace/hooks/ufshcd.h   | 4 ++++
 3 files changed, 7 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 3bba6cf5d1bb3..86d05e5ee82ed 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -212,6 +212,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_filemap_fault_cache_page);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_genl_check);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_thermal_pm_notify_suspend);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_fill_prdt);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_ufs_complete_init);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_ufs_reprogram_all_keys);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_prepare_command);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_update_sysfs);
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b683c18674632..ea35b629c2c17 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7953,6 +7953,8 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
 	ufshcd_auto_hibern8_enable(hba);
 
 	ufshpb_reset(hba);
+
+	trace_android_rvh_ufs_complete_init(hba);
 out:
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	if (ret)
diff --git a/include/trace/hooks/ufshcd.h b/include/trace/hooks/ufshcd.h
index ec8845a550763..744a1db41631d 100644
--- a/include/trace/hooks/ufshcd.h
+++ b/include/trace/hooks/ufshcd.h
@@ -19,6 +19,10 @@ DECLARE_HOOK(android_vh_ufs_fill_prdt,
 		 unsigned int segments, int *err),
 	TP_ARGS(hba, lrbp, segments, err));
 
+DECLARE_RESTRICTED_HOOK(android_rvh_ufs_complete_init,
+			TP_PROTO(struct ufs_hba *hba),
+			TP_ARGS(hba), 1);
+
 DECLARE_RESTRICTED_HOOK(android_rvh_ufs_reprogram_all_keys,
 			TP_PROTO(struct ufs_hba *hba, int *err),
 			TP_ARGS(hba, err), 1);
-- 
GitLab


From f412a5bfbec2157609f11e33a3b4e0916e8444b9 Mon Sep 17 00:00:00 2001
From: Alex Hong <rurumihong@google.com>
Date: Sat, 30 Oct 2021 03:37:04 +0800
Subject: [PATCH 0524/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 199698959
Bug: 204542043
Signed-off-by: Alex Hong <rurumihong@google.com>
Change-Id: Ia121aed6194ec87e48fe56de7fc6801ed5a031f5
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 99dd29ded6434..22fe988859535 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1914,6 +1914,7 @@
   __traceiter_android_rvh_typec_tcpci_chk_contaminant
   __traceiter_android_rvh_typec_tcpci_get_vbus
   __traceiter_android_rvh_uclamp_eff_get
+  __traceiter_android_rvh_ufs_complete_init
   __traceiter_android_rvh_ufs_reprogram_all_keys
   __traceiter_android_rvh_util_est_update
   __traceiter_android_vh_arch_set_freq_scale
@@ -1996,6 +1997,7 @@
   __tracepoint_android_rvh_typec_tcpci_chk_contaminant
   __tracepoint_android_rvh_typec_tcpci_get_vbus
   __tracepoint_android_rvh_uclamp_eff_get
+  __tracepoint_android_rvh_ufs_complete_init
   __tracepoint_android_rvh_ufs_reprogram_all_keys
   __tracepoint_android_rvh_util_est_update
   __tracepoint_android_vh_arch_set_freq_scale
-- 
GitLab


From 3ceaa85c331d30752af3b88d280cc1bcaee2eb27 Mon Sep 17 00:00:00 2001
From: Lexi Shao <shaolexi@huawei.com>
Date: Thu, 23 Sep 2021 03:41:25 +0100
Subject: [PATCH 0525/4878] ARM: 9132/1: Fix __get_user_check failure with ARM
 KASAN images

commit df909df0770779f1a5560c2bb641a2809655ef28 upstream.

ARM: kasan: Fix __get_user_check failure with kasan

In macro __get_user_check defined in arch/arm/include/asm/uaccess.h,
error code is store in register int __e(r0). When kasan is
enabled, assigning value to kernel address might trigger kasan check,
which unexpectedly overwrites r0 and causes undefined behavior on arm
kasan images.

One example is failure in do_futex and results in process soft lockup.
Log:
watchdog: BUG: soft lockup - CPU#0 stuck for 62946ms! [rs:main
Q:Reg:1151]
...
(__asan_store4) from (futex_wait_setup+0xf8/0x2b4)
(futex_wait_setup) from (futex_wait+0x138/0x394)
(futex_wait) from (do_futex+0x164/0xe40)
(do_futex) from (sys_futex_time32+0x178/0x230)
(sys_futex_time32) from (ret_fast_syscall+0x0/0x50)

The soft lockup happens in function futex_wait_setup. The reason is
function get_futex_value_locked always return EINVAL, thus pc jump
back to retry label and causes looping.

This line in function get_futex_value_locked
	ret = __get_user(*dest, from);
is expanded to
	*dest = (typeof(*(p))) __r2; ,
in macro __get_user_check. Writing to pointer dest triggers kasan check
and overwrites the return value of __get_user_x function.
The assembly code of get_futex_value_locked in kernel/futex.c:
...
c01f6dc8:       eb0b020e        bl      c04b7608 <__get_user_4>
// "x = (typeof(*(p))) __r2;" triggers kasan check and r0 is overwritten
c01f6dCc:       e1a00007        mov     r0, r7
c01f6dd0:       e1a05002        mov     r5, r2
c01f6dd4:       eb04f1e6        bl      c0333574 <__asan_store4>
c01f6dd8:       e5875000        str     r5, [r7]
// save ret value of __get_user(*dest, from), which is dest address now
c01f6ddc:       e1a05000        mov     r5, r0
...
// checking return value of __get_user failed
c01f6e00:       e3550000        cmp     r5, #0
...
c01f6e0c:       01a00005        moveq   r0, r5
// assign return value to EINVAL
c01f6e10:       13e0000d        mvnne   r0, #13

Return value is the destination address of get_user thus certainly
non-zero, so get_futex_value_locked always return EINVAL.

Fix it by using a tmp vairable to store the error code before the
assignment. This fix has no effects to non-kasan images thanks to compiler
optimization. It only affects cases that overwrite r0 due to kasan check.

This should fix bug discussed in Link:
[1] https://lore.kernel.org/linux-arm-kernel/0ef7c2a5-5d8b-c5e0-63fa-31693fd4495c@gmail.com/

Fixes: 421015713b30 ("ARM: 9017/2: Enable KASan for ARM")
Signed-off-by: Lexi Shao <shaolexi@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/uaccess.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index a13d902064722..d9db752c51fe2 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -200,6 +200,7 @@ extern int __get_user_64t_4(void *);
 		register unsigned long __l asm("r1") = __limit;		\
 		register int __e asm("r0");				\
 		unsigned int __ua_flags = uaccess_save_and_enable();	\
+		int __tmp_e;						\
 		switch (sizeof(*(__p))) {				\
 		case 1:							\
 			if (sizeof((x)) >= 8)				\
@@ -227,9 +228,10 @@ extern int __get_user_64t_4(void *);
 			break;						\
 		default: __e = __get_user_bad(); break;			\
 		}							\
+		__tmp_e = __e;						\
 		uaccess_restore(__ua_flags);				\
 		x = (typeof(*(p))) __r2;				\
-		__e;							\
+		__tmp_e;						\
 	})
 
 #define get_user(x, p)							\
-- 
GitLab


From 6ad8bbc9d301145335c35f29ed7878b61b0ad81f Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Mon, 4 Oct 2021 18:03:28 +0100
Subject: [PATCH 0526/4878] ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are
 4B aligned

commit e6a0c958bdf9b2e1b57501fc9433a461f0a6aadd upstream.

A kernel built with CONFIG_THUMB2_KERNEL=y and using clang as the
assembler could generate non-naturally-aligned v7wbi_tlb_fns which
results in a boot failure. The original commit adding the macro missed
the .align directive on this data.

Link: https://github.com/ClangBuiltLinux/linux/issues/1447
Link: https://lore.kernel.org/all/0699da7b-354f-aecc-a62f-e25693209af4@linaro.org/
Debugged-by: Ard Biesheuvel <ardb@kernel.org>
Debugged-by: Nathan Chancellor <nathan@kernel.org>
Debugged-by: Richard Henderson <richard.henderson@linaro.org>

Fixes: 66a625a88174 ("ARM: mm: proc-macros: Add generic proc/cache/tlb struct definition macros")
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/proc-macros.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index e2c743aa2eb2b..d9f7dfe2a7ed3 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -340,6 +340,7 @@ ENTRY(\name\()_cache_fns)
 
 .macro define_tlb_functions name:req, flags_up:req, flags_smp
 	.type	\name\()_tlb_fns, #object
+	.align 2
 ENTRY(\name\()_tlb_fns)
 	.long	\name\()_flush_user_tlb_range
 	.long	\name\()_flush_kern_tlb_range
-- 
GitLab


From 8a6af97c31beefcc0f0836d90b5fea3b303cc6c9 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:30:04 +0100
Subject: [PATCH 0527/4878] ARM: 9134/1: remove duplicate memcpy() definition

commit eaf6cc7165c9c5aa3c2f9faa03a98598123d0afb upstream.

Both the decompressor code and the kasan logic try to override
the memcpy() and memmove()  definitions, which leading to a clash
in a KASAN-enabled kernel with XZ decompression:

arch/arm/boot/compressed/decompress.c:50:9: error: 'memmove' macro redefined [-Werror,-Wmacro-redefined]
 #define memmove memmove
        ^
arch/arm/include/asm/string.h:59:9: note: previous definition is here
 #define memmove(dst, src, len) __memmove(dst, src, len)
        ^
arch/arm/boot/compressed/decompress.c:51:9: error: 'memcpy' macro redefined [-Werror,-Wmacro-redefined]
 #define memcpy memcpy
        ^
arch/arm/include/asm/string.h:58:9: note: previous definition is here
 #define memcpy(dst, src, len) __memcpy(dst, src, len)
        ^

Here we want the set of functions from the decompressor, so undefine
the other macros before the override.

Link: https://lore.kernel.org/linux-arm-kernel/CACRpkdZYJogU_SN3H9oeVq=zJkRgRT1gDz3xp59gdqWXxw-B=w@mail.gmail.com/
Link: https://lore.kernel.org/lkml/202105091112.F5rmd4By-lkp@intel.com/

Fixes: d6d51a96c7d6 ("ARM: 9014/2: Replace string mem* functions for KASan")
Fixes: a7f464f3db93 ("ARM: 7001/2: Wire up support for the XZ decompressor")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/compressed/decompress.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c
index aa075d8372ea2..74255e8198314 100644
--- a/arch/arm/boot/compressed/decompress.c
+++ b/arch/arm/boot/compressed/decompress.c
@@ -47,7 +47,10 @@ extern char * strchrnul(const char *, int);
 #endif
 
 #ifdef CONFIG_KERNEL_XZ
+/* Prevent KASAN override of string helpers in decompressor */
+#undef memmove
 #define memmove memmove
+#undef memcpy
 #define memcpy memcpy
 #include "../../../../lib/decompress_unxz.c"
 #endif
-- 
GitLab


From c06d7d9bfcf6830fdc82ff07fe955d3e48bc0fe9 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:30:08 +0100
Subject: [PATCH 0528/4878] ARM: 9138/1: fix link warning with XIP +
 frame-pointer

commit 44cc6412e66b2b84544eaf2e14cf1764301e2a80 upstream.

When frame pointers are used instead of the ARM unwinder,
and the kernel is built using clang with an external assembler
and CONFIG_XIP_KERNEL, every file produces two warnings
like:

arm-linux-gnueabi-ld: warning: orphan section `.ARM.extab' from `net/mac802154/util.o' being placed in section `.ARM.extab'
arm-linux-gnueabi-ld: warning: orphan section `.ARM.exidx' from `net/mac802154/util.o' being placed in section `.ARM.exidx'

The same fix was already merged for the normal (non-XIP)

linker script, with a longer description.

Fixes: c39866f268f8 ("arm/build: Always handle .ARM.exidx and .ARM.extab sections")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/vmlinux-xip.lds.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S
index 50136828f5b54..e0c00986487fb 100644
--- a/arch/arm/kernel/vmlinux-xip.lds.S
+++ b/arch/arm/kernel/vmlinux-xip.lds.S
@@ -40,6 +40,10 @@ SECTIONS
 		ARM_DISCARD
 		*(.alt.smp.init)
 		*(.pv_table)
+#ifndef CONFIG_ARM_UNWIND
+		*(.ARM.exidx) *(.ARM.exidx.*)
+		*(.ARM.extab) *(.ARM.extab.*)
+#endif
 	}
 
 	. = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
-- 
GitLab


From 15b278f94bbb788974881f5e67d3f12f0f8be7cc Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:30:09 +0100
Subject: [PATCH 0529/4878] ARM: 9139/1: kprobes: fix arch_init_kprobes()
 prototype

commit 1f323127cab086e4fd618981b1e5edc396eaf0f4 upstream.

With extra warnings enabled, gcc complains about this function
definition:

arch/arm/probes/kprobes/core.c: In function 'arch_init_kprobes':
arch/arm/probes/kprobes/core.c:465:12: warning: old-style function definition [-Wold-style-definition]
  465 | int __init arch_init_kprobes()

Link: https://lore.kernel.org/all/20201027093057.c685a14b386acacb3c449e3d@kernel.org/

Fixes: 24ba613c9d6c ("ARM kprobes: core code")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/probes/kprobes/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/probes/kprobes/core.c b/arch/arm/probes/kprobes/core.c
index a9653117ca0dd..e513d8a467760 100644
--- a/arch/arm/probes/kprobes/core.c
+++ b/arch/arm/probes/kprobes/core.c
@@ -462,7 +462,7 @@ static struct undef_hook kprobes_arm_break_hook = {
 
 #endif /* !CONFIG_THUMB2_KERNEL */
 
-int __init arch_init_kprobes()
+int __init arch_init_kprobes(void)
 {
 	arm_probes_decode_init();
 #ifdef CONFIG_THUMB2_KERNEL
-- 
GitLab


From 5a768b4d3e1a3eda23b8c5690645fde2bcff910a Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:30:37 +0100
Subject: [PATCH 0530/4878] ARM: 9141/1: only warn about XIP address when not
 compile testing

commit 48ccc8edf5b90622cdc4f8878e0042ab5883e2ca upstream.

In randconfig builds, we sometimes come across this warning:

arm-linux-gnueabi-ld: XIP start address may cause MPU programming issues

While this is helpful for actual systems to figure out why it
fails, the warning does not provide any benefit for build testing,
so guard it in a check for CONFIG_COMPILE_TEST, which is usually
set on randconfig builds.

Fixes: 216218308cfb ("ARM: 8713/1: NOMMU: Support MPU in XIP configuration")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/vmlinux-xip.lds.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S
index e0c00986487fb..f14c2360ea0b1 100644
--- a/arch/arm/kernel/vmlinux-xip.lds.S
+++ b/arch/arm/kernel/vmlinux-xip.lds.S
@@ -176,7 +176,7 @@ ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
 ASSERT((_end - __bss_start) >= 12288, ".bss too small for CONFIG_XIP_DEFLATED_DATA")
 #endif
 
-#ifdef CONFIG_ARM_MPU
+#if defined(CONFIG_ARM_MPU) && !defined(CONFIG_COMPILE_TEST)
 /*
  * Due to PMSAv7 restriction on base address and size we have to
  * enforce minimal alignment restrictions. It was seen that weaker
-- 
GitLab


From 3f2c12ec8a3f992c528c7ad83f7272122dfe8d84 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Thu, 18 Feb 2021 22:32:51 +0000
Subject: [PATCH 0531/4878] io_uring: don't take uring_lock during iowq cancel

commit 792bb6eb862333658bf1bd2260133f0507e2da8d upstream.

[   97.866748] a.out/2890 is trying to acquire lock:
[   97.867829] ffff8881046763e8 (&ctx->uring_lock){+.+.}-{3:3}, at:
io_wq_submit_work+0x155/0x240
[   97.869735]
[   97.869735] but task is already holding lock:
[   97.871033] ffff88810dfe0be8 (&ctx->uring_lock){+.+.}-{3:3}, at:
__x64_sys_io_uring_enter+0x3f0/0x5b0
[   97.873074]
[   97.873074] other info that might help us debug this:
[   97.874520]  Possible unsafe locking scenario:
[   97.874520]
[   97.875845]        CPU0
[   97.876440]        ----
[   97.877048]   lock(&ctx->uring_lock);
[   97.877961]   lock(&ctx->uring_lock);
[   97.878881]
[   97.878881]  *** DEADLOCK ***
[   97.878881]
[   97.880341]  May be due to missing lock nesting notation
[   97.880341]
[   97.881952] 1 lock held by a.out/2890:
[   97.882873]  #0: ffff88810dfe0be8 (&ctx->uring_lock){+.+.}-{3:3}, at:
__x64_sys_io_uring_enter+0x3f0/0x5b0
[   97.885108]
[   97.885108] stack backtrace:
[   97.890457] Call Trace:
[   97.891121]  dump_stack+0xac/0xe3
[   97.891972]  __lock_acquire+0xab6/0x13a0
[   97.892940]  lock_acquire+0x2c3/0x390
[   97.894894]  __mutex_lock+0xae/0x9f0
[   97.901101]  io_wq_submit_work+0x155/0x240
[   97.902112]  io_wq_cancel_cb+0x162/0x490
[   97.904126]  io_async_find_and_cancel+0x3b/0x140
[   97.905247]  io_issue_sqe+0x86d/0x13e0
[   97.909122]  __io_queue_sqe+0x10b/0x550
[   97.913971]  io_queue_sqe+0x235/0x470
[   97.914894]  io_submit_sqes+0xcce/0xf10
[   97.917872]  __x64_sys_io_uring_enter+0x3fb/0x5b0
[   97.921424]  do_syscall_64+0x2d/0x40
[   97.922329]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

While holding uring_lock, e.g. from inline execution, async cancel
request may attempt cancellations through io_wq_submit_work, which may
try to grab a lock. Delay it to task_work, so we do it from a clean
context and don't have to worry about locking.

Cc: <stable@vger.kernel.org> # 5.5+
Fixes: c07e6719511e ("io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work()")
Reported-by: Abaci <abaci@linux.alibaba.com>
Reported-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
[Lee: The first hunk solves a different (double free) issue in v5.10.
      Only the first hunk of the original patch is relevant to v5.10 AND
      the first hunk of the original patch is only relevant to v5.10]
Reported-by: syzbot+59d8a1f4e60c20c066cf@syzkaller.appspotmail.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/io_uring.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 0736487165da4..ee7ceea899346 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2075,7 +2075,9 @@ static void io_req_task_cancel(struct callback_head *cb)
 	struct io_kiocb *req = container_of(cb, struct io_kiocb, task_work);
 	struct io_ring_ctx *ctx = req->ctx;
 
+	mutex_lock(&ctx->uring_lock);
 	__io_req_task_cancel(req, -ECANCELED);
+	mutex_unlock(&ctx->uring_lock);
 	percpu_ref_put(&ctx->refs);
 }
 
-- 
GitLab


From e184a21b5ccc49f3e1c3160bc280a5995e933b04 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Wed, 6 Oct 2021 01:55:22 +0530
Subject: [PATCH 0532/4878] powerpc/bpf: Fix BPF_MOD when imm == 1

commit 8bbc9d822421d9ac8ff9ed26a3713c9afc69d6c8 upstream.

Only ignore the operation if dividing by 1.

Fixes: 156d0e290e969c ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Tested-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c674ca18c3046885602caebb326213731c675d06.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/net/bpf_jit_comp64.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 0752967f351bb..a2750d6ffd0f5 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -415,8 +415,14 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
 		case BPF_ALU64 | BPF_DIV | BPF_K: /* dst /= imm */
 			if (imm == 0)
 				return -EINVAL;
-			else if (imm == 1)
-				goto bpf_alu32_trunc;
+			if (imm == 1) {
+				if (BPF_OP(code) == BPF_DIV) {
+					goto bpf_alu32_trunc;
+				} else {
+					EMIT(PPC_RAW_LI(dst_reg, 0));
+					break;
+				}
+			}
 
 			PPC_LI32(b2p[TMP_REG_1], imm);
 			switch (BPF_CLASS(code)) {
-- 
GitLab


From d4d9c065988c4c2c7c0cc4be0f7e1c3563e1e779 Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Mon, 12 Jul 2021 15:27:46 +0100
Subject: [PATCH 0533/4878] arm64: Avoid premature usercopy failure

commit 295cf156231ca3f9e3a66bde7fab5e09c41835e0 upstream.

Al reminds us that the usercopy API must only return complete failure
if absolutely nothing could be copied. Currently, if userspace does
something silly like giving us an unaligned pointer to Device memory,
or a size which overruns MTE tag bounds, we may fail to honour that
requirement when faulting on a multi-byte access even though a smaller
access could have succeeded.

Add a mitigation to the fixup routines to fall back to a single-byte
copy if we faulted on a larger access before anything has been written
to the destination, to guarantee making *some* forward progress. We
needn't be too concerned about the overall performance since this should
only occur when callers are doing something a bit dodgy in the first
place. Particularly broken userspace might still be able to trick
generic_perform_write() into an infinite loop by targeting write() at
an mmap() of some read-only device register where the fault-in load
succeeds but any store synchronously aborts such that copy_to_user() is
genuinely unable to make progress, but, well, don't do that...

CC: stable@vger.kernel.org
Reported-by: Chen Huang <chenhuang5@huawei.com>
Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/dc03d5c675731a1f24a62417dba5429ad744234e.1626098433.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Chen Huang <chenhuang5@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/lib/copy_from_user.S | 13 ++++++++++---
 arch/arm64/lib/copy_in_user.S   | 21 ++++++++++++++-------
 arch/arm64/lib/copy_to_user.S   | 14 +++++++++++---
 3 files changed, 35 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/lib/copy_from_user.S b/arch/arm64/lib/copy_from_user.S
index 0f8a3a9e3795b..957a6d092d7af 100644
--- a/arch/arm64/lib/copy_from_user.S
+++ b/arch/arm64/lib/copy_from_user.S
@@ -29,7 +29,7 @@
 	.endm
 
 	.macro ldrh1 reg, ptr, val
-	uao_user_alternative 9998f, ldrh, ldtrh, \reg, \ptr, \val
+	uao_user_alternative 9997f, ldrh, ldtrh, \reg, \ptr, \val
 	.endm
 
 	.macro strh1 reg, ptr, val
@@ -37,7 +37,7 @@
 	.endm
 
 	.macro ldr1 reg, ptr, val
-	uao_user_alternative 9998f, ldr, ldtr, \reg, \ptr, \val
+	uao_user_alternative 9997f, ldr, ldtr, \reg, \ptr, \val
 	.endm
 
 	.macro str1 reg, ptr, val
@@ -45,7 +45,7 @@
 	.endm
 
 	.macro ldp1 reg1, reg2, ptr, val
-	uao_ldp 9998f, \reg1, \reg2, \ptr, \val
+	uao_ldp 9997f, \reg1, \reg2, \ptr, \val
 	.endm
 
 	.macro stp1 reg1, reg2, ptr, val
@@ -53,8 +53,10 @@
 	.endm
 
 end	.req	x5
+srcin	.req	x15
 SYM_FUNC_START(__arch_copy_from_user)
 	add	end, x0, x2
+	mov	srcin, x1
 #include "copy_template.S"
 	mov	x0, #0				// Nothing to copy
 	ret
@@ -63,6 +65,11 @@ EXPORT_SYMBOL(__arch_copy_from_user)
 
 	.section .fixup,"ax"
 	.align	2
+9997:	cmp	dst, dstin
+	b.ne	9998f
+	// Before being absolutely sure we couldn't copy anything, try harder
+USER(9998f, ldtrb tmp1w, [srcin])
+	strb	tmp1w, [dst], #1
 9998:	sub	x0, end, dst			// bytes not copied
 	ret
 	.previous
diff --git a/arch/arm64/lib/copy_in_user.S b/arch/arm64/lib/copy_in_user.S
index 80e37ada0ee1a..35c01da09323e 100644
--- a/arch/arm64/lib/copy_in_user.S
+++ b/arch/arm64/lib/copy_in_user.S
@@ -30,33 +30,34 @@
 	.endm
 
 	.macro ldrh1 reg, ptr, val
-	uao_user_alternative 9998f, ldrh, ldtrh, \reg, \ptr, \val
+	uao_user_alternative 9997f, ldrh, ldtrh, \reg, \ptr, \val
 	.endm
 
 	.macro strh1 reg, ptr, val
-	uao_user_alternative 9998f, strh, sttrh, \reg, \ptr, \val
+	uao_user_alternative 9997f, strh, sttrh, \reg, \ptr, \val
 	.endm
 
 	.macro ldr1 reg, ptr, val
-	uao_user_alternative 9998f, ldr, ldtr, \reg, \ptr, \val
+	uao_user_alternative 9997f, ldr, ldtr, \reg, \ptr, \val
 	.endm
 
 	.macro str1 reg, ptr, val
-	uao_user_alternative 9998f, str, sttr, \reg, \ptr, \val
+	uao_user_alternative 9997f, str, sttr, \reg, \ptr, \val
 	.endm
 
 	.macro ldp1 reg1, reg2, ptr, val
-	uao_ldp 9998f, \reg1, \reg2, \ptr, \val
+	uao_ldp 9997f, \reg1, \reg2, \ptr, \val
 	.endm
 
 	.macro stp1 reg1, reg2, ptr, val
-	uao_stp 9998f, \reg1, \reg2, \ptr, \val
+	uao_stp 9997f, \reg1, \reg2, \ptr, \val
 	.endm
 
 end	.req	x5
-
+srcin	.req	x15
 SYM_FUNC_START(__arch_copy_in_user)
 	add	end, x0, x2
+	mov	srcin, x1
 #include "copy_template.S"
 	mov	x0, #0
 	ret
@@ -65,6 +66,12 @@ EXPORT_SYMBOL(__arch_copy_in_user)
 
 	.section .fixup,"ax"
 	.align	2
+9997:	cmp	dst, dstin
+	b.ne	9998f
+	// Before being absolutely sure we couldn't copy anything, try harder
+USER(9998f, ldtrb tmp1w, [srcin])
+USER(9998f, sttrb tmp1w, [dst])
+	add	dst, dst, #1
 9998:	sub	x0, end, dst			// bytes not copied
 	ret
 	.previous
diff --git a/arch/arm64/lib/copy_to_user.S b/arch/arm64/lib/copy_to_user.S
index 4ec59704b8f2d..85705350ff354 100644
--- a/arch/arm64/lib/copy_to_user.S
+++ b/arch/arm64/lib/copy_to_user.S
@@ -32,7 +32,7 @@
 	.endm
 
 	.macro strh1 reg, ptr, val
-	uao_user_alternative 9998f, strh, sttrh, \reg, \ptr, \val
+	uao_user_alternative 9997f, strh, sttrh, \reg, \ptr, \val
 	.endm
 
 	.macro ldr1 reg, ptr, val
@@ -40,7 +40,7 @@
 	.endm
 
 	.macro str1 reg, ptr, val
-	uao_user_alternative 9998f, str, sttr, \reg, \ptr, \val
+	uao_user_alternative 9997f, str, sttr, \reg, \ptr, \val
 	.endm
 
 	.macro ldp1 reg1, reg2, ptr, val
@@ -48,12 +48,14 @@
 	.endm
 
 	.macro stp1 reg1, reg2, ptr, val
-	uao_stp 9998f, \reg1, \reg2, \ptr, \val
+	uao_stp 9997f, \reg1, \reg2, \ptr, \val
 	.endm
 
 end	.req	x5
+srcin	.req	x15
 SYM_FUNC_START(__arch_copy_to_user)
 	add	end, x0, x2
+	mov	srcin, x1
 #include "copy_template.S"
 	mov	x0, #0
 	ret
@@ -62,6 +64,12 @@ EXPORT_SYMBOL(__arch_copy_to_user)
 
 	.section .fixup,"ax"
 	.align	2
+9997:	cmp	dst, dstin
+	b.ne	9998f
+	// Before being absolutely sure we couldn't copy anything, try harder
+	ldrb	tmp1w, [srcin]
+USER(9998f, sttrb tmp1w, [dst])
+	add	dst, dst, #1
 9998:	sub	x0, end, dst			// bytes not copied
 	ret
 	.previous
-- 
GitLab


From b663890d854403e566169f7e90aed5cd6ff64f6b Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 2 Jul 2021 12:45:02 -0400
Subject: [PATCH 0534/4878] ext4: fix possible UAF when remounting r/o a
 mmp-protected file system

commit 61bb4a1c417e5b95d9edb4f887f131de32e419cb upstream.

After commit 618f003199c6 ("ext4: fix memory leak in
ext4_fill_super"), after the file system is remounted read-only, there
is a race where the kmmpd thread can exit, causing sbi->s_mmp_tsk to
point at freed memory, which the call to ext4_stop_mmpd() can trip
over.

Fix this by only allowing kmmpd() to exit when it is stopped via
ext4_stop_mmpd().

Link: https://lore.kernel.org/r/20210707002433.3719773-1-tytso@mit.edu
Reported-by: Ye Bin <yebin10@huawei.com>
Bug-Report-Link: <20210629143603.2166962-1-yebin10@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/mmp.c   | 31 +++++++++++++++----------------
 fs/ext4/super.c |  6 +++++-
 2 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 6cb598b549ca1..bc364c119af6a 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -156,7 +156,12 @@ static int kmmpd(void *data)
 	memcpy(mmp->mmp_nodename, init_utsname()->nodename,
 	       sizeof(mmp->mmp_nodename));
 
-	while (!kthread_should_stop()) {
+	while (!kthread_should_stop() && !sb_rdonly(sb)) {
+		if (!ext4_has_feature_mmp(sb)) {
+			ext4_warning(sb, "kmmpd being stopped since MMP feature"
+				     " has been disabled.");
+			goto wait_to_exit;
+		}
 		if (++seq > EXT4_MMP_SEQ_MAX)
 			seq = 1;
 
@@ -177,16 +182,6 @@ static int kmmpd(void *data)
 			failed_writes++;
 		}
 
-		if (!(le32_to_cpu(es->s_feature_incompat) &
-		    EXT4_FEATURE_INCOMPAT_MMP)) {
-			ext4_warning(sb, "kmmpd being stopped since MMP feature"
-				     " has been disabled.");
-			goto exit_thread;
-		}
-
-		if (sb_rdonly(sb))
-			break;
-
 		diff = jiffies - last_update_time;
 		if (diff < mmp_update_interval * HZ)
 			schedule_timeout_interruptible(mmp_update_interval *
@@ -207,7 +202,7 @@ static int kmmpd(void *data)
 				ext4_error_err(sb, -retval,
 					       "error reading MMP data: %d",
 					       retval);
-				goto exit_thread;
+				goto wait_to_exit;
 			}
 
 			mmp_check = (struct mmp_struct *)(bh_check->b_data);
@@ -221,7 +216,7 @@ static int kmmpd(void *data)
 				ext4_error_err(sb, EBUSY, "abort");
 				put_bh(bh_check);
 				retval = -EBUSY;
-				goto exit_thread;
+				goto wait_to_exit;
 			}
 			put_bh(bh_check);
 		}
@@ -244,7 +239,13 @@ static int kmmpd(void *data)
 
 	retval = write_mmp_block(sb, bh);
 
-exit_thread:
+wait_to_exit:
+	while (!kthread_should_stop()) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (!kthread_should_stop())
+			schedule();
+	}
+	set_current_state(TASK_RUNNING);
 	return retval;
 }
 
@@ -391,5 +392,3 @@ failed:
 	brelse(bh);
 	return 1;
 }
-
-
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index cbeb024296719..953c7e8757831 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5932,7 +5932,6 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 				 */
 				ext4_mark_recovery_complete(sb, es);
 			}
-			ext4_stop_mmpd(sbi);
 		} else {
 			/* Make sure we can mount this feature set readwrite */
 			if (ext4_has_feature_readonly(sb) ||
@@ -6046,6 +6045,9 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 	if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks)
 		ext4_release_system_zone(sb);
 
+	if (!ext4_has_feature_mmp(sb) || sb_rdonly(sb))
+		ext4_stop_mmpd(sbi);
+
 	/*
 	 * Some options can be enabled by ext4 and/or by VFS mount flag
 	 * either way we need to make sure it matches in both *flags and
@@ -6078,6 +6080,8 @@ restore_opts:
 	for (i = 0; i < EXT4_MAXQUOTAS; i++)
 		kfree(to_free[i]);
 #endif
+	if (!ext4_has_feature_mmp(sb) || sb_rdonly(sb))
+		ext4_stop_mmpd(sbi);
 	kfree(orig_data);
 	return err;
 }
-- 
GitLab


From 693ecbe8f799405f8775719deedb1f76265d375a Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Thu, 21 Oct 2021 14:29:44 +0200
Subject: [PATCH 0535/4878] usbnet: sanity check for maxpacket

commit 397430b50a363d8b7bdda00522123f82df6adc5e upstream.

maxpacket of 0 makes no sense and oopses as we need to divide
by it. Give up.

V2: fixed typo in log and stylistic issues

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: syzbot+76bb1d34ffa0adc03baa@syzkaller.appspotmail.com
Reviewed-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211021122944.21816-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/usbnet.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 6062dc27870e7..d0c8aec1b8dac 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1755,6 +1755,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	if (!dev->rx_urb_size)
 		dev->rx_urb_size = dev->hard_mtu;
 	dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
+	if (dev->maxpacket == 0) {
+		/* that is a broken device */
+		goto out4;
+	}
 
 	/* let userspace know we have a random address */
 	if (ether_addr_equal(net->dev_addr, node_id))
-- 
GitLab


From 017718dfbb6fc7c75e43b1e2554638948d4cb607 Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Tue, 26 Oct 2021 20:40:15 +0800
Subject: [PATCH 0536/4878] usbnet: fix error return code in usbnet_probe()

commit 6f7c88691191e6c52ef2543d6f1da8d360b27a24 upstream.

Return error code if usb_maxpacket() returns 0 in usbnet_probe()

Fixes: 397430b50a36 ("usbnet: sanity check for maxpacket")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211026124015.3025136-1-wanghai38@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/usbnet.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index d0c8aec1b8dac..402390b1a66b5 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1757,6 +1757,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
 	if (dev->maxpacket == 0) {
 		/* that is a broken device */
+		status = -ENODEV;
 		goto out4;
 	}
 
-- 
GitLab


From 01c2881bb0e0a71b87ca425e1b763ac13855aa7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Fri, 8 Oct 2021 22:59:38 +0200
Subject: [PATCH 0537/4878] Revert "pinctrl: bcm: ns: support updated DT
 binding as syscon subnode"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 6dba4bdfd7a30e77b848a45404b224588bf989e5 upstream.

This reverts commit a49d784d5a8272d0f63c448fe8dc69e589db006e.

The updated binding was wrong / invalid and has been reverted. There
isn't any upstream kernel DTS using it and Broadcom isn't known to use
it neither. There is close to zero chance this will cause regression for
anyone.

Actually in-kernel bcm5301x.dtsi still uses the old good binding and so
it's broken since the driver update. This revert fixes it.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20211008205938.29925-3-zajec5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/bcm/pinctrl-ns.c | 29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-ns.c b/drivers/pinctrl/bcm/pinctrl-ns.c
index e79690bd8b85f..d7f8175d2c1c8 100644
--- a/drivers/pinctrl/bcm/pinctrl-ns.c
+++ b/drivers/pinctrl/bcm/pinctrl-ns.c
@@ -5,7 +5,6 @@
 
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -13,7 +12,6 @@
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
 #include <linux/platform_device.h>
-#include <linux/regmap.h>
 #include <linux/slab.h>
 
 #define FLAG_BCM4708		BIT(1)
@@ -24,8 +22,7 @@ struct ns_pinctrl {
 	struct device *dev;
 	unsigned int chipset_flag;
 	struct pinctrl_dev *pctldev;
-	struct regmap *regmap;
-	u32 offset;
+	void __iomem *base;
 
 	struct pinctrl_desc pctldesc;
 	struct ns_pinctrl_group *groups;
@@ -232,9 +229,9 @@ static int ns_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev,
 		unset |= BIT(pin_number);
 	}
 
-	regmap_read(ns_pinctrl->regmap, ns_pinctrl->offset, &tmp);
+	tmp = readl(ns_pinctrl->base);
 	tmp &= ~unset;
-	regmap_write(ns_pinctrl->regmap, ns_pinctrl->offset, tmp);
+	writel(tmp, ns_pinctrl->base);
 
 	return 0;
 }
@@ -266,13 +263,13 @@ static const struct of_device_id ns_pinctrl_of_match_table[] = {
 static int ns_pinctrl_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct device_node *np = dev->of_node;
 	const struct of_device_id *of_id;
 	struct ns_pinctrl *ns_pinctrl;
 	struct pinctrl_desc *pctldesc;
 	struct pinctrl_pin_desc *pin;
 	struct ns_pinctrl_group *group;
 	struct ns_pinctrl_function *function;
+	struct resource *res;
 	int i;
 
 	ns_pinctrl = devm_kzalloc(dev, sizeof(*ns_pinctrl), GFP_KERNEL);
@@ -290,18 +287,12 @@ static int ns_pinctrl_probe(struct platform_device *pdev)
 		return -EINVAL;
 	ns_pinctrl->chipset_flag = (uintptr_t)of_id->data;
 
-	ns_pinctrl->regmap = syscon_node_to_regmap(of_get_parent(np));
-	if (IS_ERR(ns_pinctrl->regmap)) {
-		int err = PTR_ERR(ns_pinctrl->regmap);
-
-		dev_err(dev, "Failed to map pinctrl regs: %d\n", err);
-
-		return err;
-	}
-
-	if (of_property_read_u32(np, "offset", &ns_pinctrl->offset)) {
-		dev_err(dev, "Failed to get register offset\n");
-		return -ENOENT;
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "cru_gpio_control");
+	ns_pinctrl->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(ns_pinctrl->base)) {
+		dev_err(dev, "Failed to map pinctrl regs\n");
+		return PTR_ERR(ns_pinctrl->base);
 	}
 
 	memcpy(pctldesc, &ns_pinctrl_desc, sizeof(*pctldesc));
-- 
GitLab


From 9a52798dce738020cef7e89ab3bbe5dee5f69a43 Mon Sep 17 00:00:00 2001
From: Sachi King <nakato@nakato.io>
Date: Sat, 9 Oct 2021 14:32:40 +1100
Subject: [PATCH 0538/4878] pinctrl: amd: disable and mask interrupts on probe

commit 4e5a04be88fe335ad5331f4f8c17f4ebd357e065 upstream.

Some systems such as the Microsoft Surface Laptop 4 leave interrupts
enabled and configured for use in sleep states on boot, which cause
unexpected behaviour such as spurious wakes and failed resumes in
s2idle states.

As interrupts should not be enabled until they are claimed and
explicitly enabled, disabling any interrupts mistakenly left enabled by
firmware should be safe.

Signed-off-by: Sachi King <nakato@nakato.io>
Link: https://lore.kernel.org/r/20211009033240.21543-1-nakato@nakato.io
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/pinctrl-amd.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index ef49402c0623d..e20bcc835d6a8 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -764,6 +764,34 @@ static const struct pinconf_ops amd_pinconf_ops = {
 	.pin_config_group_set = amd_pinconf_group_set,
 };
 
+static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
+{
+	struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+	unsigned long flags;
+	u32 pin_reg, mask;
+	int i;
+
+	mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3) |
+		BIT(INTERRUPT_MASK_OFF) | BIT(INTERRUPT_ENABLE_OFF) |
+		BIT(WAKE_CNTRL_OFF_S4);
+
+	for (i = 0; i < desc->npins; i++) {
+		int pin = desc->pins[i].number;
+		const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);
+
+		if (!pd)
+			continue;
+
+		raw_spin_lock_irqsave(&gpio_dev->lock, flags);
+
+		pin_reg = readl(gpio_dev->base + i * 4);
+		pin_reg &= ~mask;
+		writel(pin_reg, gpio_dev->base + i * 4);
+
+		raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
+	}
+}
+
 #ifdef CONFIG_PM_SLEEP
 static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin)
 {
@@ -901,6 +929,9 @@ static int amd_gpio_probe(struct platform_device *pdev)
 		return PTR_ERR(gpio_dev->pctrl);
 	}
 
+	/* Disable and mask interrupts */
+	amd_gpio_irq_init(gpio_dev);
+
 	girq = &gpio_dev->gc.irq;
 	girq->chip = &amd_gpio_irqchip;
 	/* This will let us handle the parent IRQ in the driver */
-- 
GitLab


From 5aa5bab579575452bc59f9626e1cd44b4cfbd373 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Fri, 22 Oct 2021 09:12:26 +0000
Subject: [PATCH 0539/4878] ata: sata_mv: Fix the error handling of
 mv_chip_id()

commit a0023bb9dd9bc439d44604eeec62426a990054cd upstream.

mv_init_host() propagates the value returned by mv_chip_id() which in turn
gets propagated by mv_pci_init_one() and hits local_pci_probe().

During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.

Since this is a bug rather than a recoverable runtime error we should
use dev_alert() instead of dev_err().

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/sata_mv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index b62446ea5f408..11be88f70690e 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -3892,8 +3892,8 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
 		break;
 
 	default:
-		dev_err(host->dev, "BUG: invalid board index %u\n", board_idx);
-		return 1;
+		dev_alert(host->dev, "BUG: invalid board index %u\n", board_idx);
+		return -EINVAL;
 	}
 
 	hpriv->hp_flags = hp_flags;
-- 
GitLab


From 0b1b3e086b0af2c2faa9938c4db956fe6ce5c965 Mon Sep 17 00:00:00 2001
From: Max VA <maxv@sentinelone.com>
Date: Mon, 25 Oct 2021 17:31:53 +0200
Subject: [PATCH 0540/4878] tipc: fix size validations for the MSG_CRYPTO type

commit fa40d9734a57bcbfa79a280189799f76c88f7bb0 upstream.

The function tipc_crypto_key_rcv is used to parse MSG_CRYPTO messages
to receive keys from other nodes in the cluster in order to decrypt any
further messages from them.
This patch verifies that any supplied sizes in the message body are
valid for the received message.

Fixes: 1ef6f7c9390f ("tipc: add automatic session key exchange")
Signed-off-by: Max VA <maxv@sentinelone.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/tipc/crypto.c | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index f8e73c4a00933..23b100f36ee48 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -2278,43 +2278,53 @@ static bool tipc_crypto_key_rcv(struct tipc_crypto *rx, struct tipc_msg *hdr)
 	u16 key_gen = msg_key_gen(hdr);
 	u16 size = msg_data_sz(hdr);
 	u8 *data = msg_data(hdr);
+	unsigned int keylen;
+
+	/* Verify whether the size can exist in the packet */
+	if (unlikely(size < sizeof(struct tipc_aead_key) + TIPC_AEAD_KEYLEN_MIN)) {
+		pr_debug("%s: message data size is too small\n", rx->name);
+		goto exit;
+	}
+
+	keylen = ntohl(*((__be32 *)(data + TIPC_AEAD_ALG_NAME)));
+
+	/* Verify the supplied size values */
+	if (unlikely(size != keylen + sizeof(struct tipc_aead_key) ||
+		     keylen > TIPC_AEAD_KEY_SIZE_MAX)) {
+		pr_debug("%s: invalid MSG_CRYPTO key size\n", rx->name);
+		goto exit;
+	}
 
 	spin_lock(&rx->lock);
 	if (unlikely(rx->skey || (key_gen == rx->key_gen && rx->key.keys))) {
 		pr_err("%s: key existed <%p>, gen %d vs %d\n", rx->name,
 		       rx->skey, key_gen, rx->key_gen);
-		goto exit;
+		goto exit_unlock;
 	}
 
 	/* Allocate memory for the key */
 	skey = kmalloc(size, GFP_ATOMIC);
 	if (unlikely(!skey)) {
 		pr_err("%s: unable to allocate memory for skey\n", rx->name);
-		goto exit;
+		goto exit_unlock;
 	}
 
 	/* Copy key from msg data */
-	skey->keylen = ntohl(*((__be32 *)(data + TIPC_AEAD_ALG_NAME)));
+	skey->keylen = keylen;
 	memcpy(skey->alg_name, data, TIPC_AEAD_ALG_NAME);
 	memcpy(skey->key, data + TIPC_AEAD_ALG_NAME + sizeof(__be32),
 	       skey->keylen);
 
-	/* Sanity check */
-	if (unlikely(size != tipc_aead_key_size(skey))) {
-		kfree(skey);
-		skey = NULL;
-		goto exit;
-	}
-
 	rx->key_gen = key_gen;
 	rx->skey_mode = msg_key_mode(hdr);
 	rx->skey = skey;
 	rx->nokey = 0;
 	mb(); /* for nokey flag */
 
-exit:
+exit_unlock:
 	spin_unlock(&rx->lock);
 
+exit:
 	/* Schedule the key attaching on this crypto */
 	if (likely(skey && queue_delayed_work(tx->wq, &rx->work, 0)))
 		return true;
-- 
GitLab


From 11c0406b4c3379a410876739b39227446598572a Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Mon, 25 Oct 2021 16:49:36 +0200
Subject: [PATCH 0541/4878] nfc: port100: fix using -ERRNO as command type mask

commit 2195f2062e4cc93870da8e71c318ef98a1c51cef upstream.

During probing, the driver tries to get a list (mask) of supported
command types in port100_get_command_type_mask() function.  The value
is u64 and 0 is treated as invalid mask (no commands supported).  The
function however returns also -ERRNO as u64 which will be interpret as
valid command mask.

Return 0 on every error case of port100_get_command_type_mask(), so the
probing will stop.

Cc: <stable@vger.kernel.org>
Fixes: 0347a6ab300a ("NFC: port100: Commands mechanism implementation")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nfc/port100.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 8e4d355dc3aec..1caebefb25ff1 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -1003,11 +1003,11 @@ static u64 port100_get_command_type_mask(struct port100 *dev)
 
 	skb = port100_alloc_skb(dev, 0);
 	if (!skb)
-		return -ENOMEM;
+		return 0;
 
 	resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb);
 	if (IS_ERR(resp))
-		return PTR_ERR(resp);
+		return 0;
 
 	if (resp->len < 8)
 		mask = 0;
-- 
GitLab


From c828115a14eacbf42042770fd68543f134e89efa Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Thu, 30 Sep 2021 20:49:42 +0300
Subject: [PATCH 0542/4878] Revert "net: mdiobus: Fix memory leak in
 __mdiobus_register"

commit 10eff1f5788b6ffac212c254e2f3666219576889 upstream.

This reverts commit ab609f25d19858513919369ff3d9a63c02cd9e2e.

This patch is correct in the sense that we _should_ call device_put() in
case of device_register() failure, but the problem in this code is more
vast.

We need to set bus->state to UNMDIOBUS_REGISTERED before calling
device_register() to correctly release the device in mdiobus_free().
This patch prevents us from doing it, since in case of device_register()
failure put_device() will be called 2 times and it will cause UAF or
something else.

Also, Reported-by: tag in revered commit was wrong, since syzbot
reported different leak in same function.

Link: https://lore.kernel.org/netdev/20210928092657.GI2048@kadam/
Acked-by: Yanfei Xu <yanfei.xu@windriver.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/f12fb1faa4eccf0f355788225335eb4309ff2599.1633024062.git.paskripkin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/mdio_bus.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 453490be7055a..2645ca35103c9 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -544,7 +544,6 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
 	err = device_register(&bus->dev);
 	if (err) {
 		pr_err("mii_bus %s failed to register\n", bus->id);
-		put_device(&bus->dev);
 		return -EINVAL;
 	}
 
-- 
GitLab


From f3dec7e7ace38224f82cf83f0049159d067c2e19 Mon Sep 17 00:00:00 2001
From: Daniel Jordan <daniel.m.jordan@oracle.com>
Date: Wed, 27 Oct 2021 17:59:20 -0400
Subject: [PATCH 0543/4878] net/tls: Fix flipped sign in tls_err_abort() calls

commit da353fac65fede6b8b4cfe207f0d9408e3121105 upstream.

sk->sk_err appears to expect a positive value, a convention that ktls
doesn't always follow and that leads to memory corruption in other code.
For instance,

    [kworker]
    tls_encrypt_done(..., err=<negative error from crypto request>)
      tls_err_abort(.., err)
        sk->sk_err = err;

    [task]
    splice_from_pipe_feed
      ...
        tls_sw_do_sendpage
          if (sk->sk_err) {
            ret = -sk->sk_err;  // ret is positive

    splice_from_pipe_feed (continued)
      ret = actor(...)  // ret is still positive and interpreted as bytes
                        // written, resulting in underflow of buf->len and
                        // sd->len, leading to huge buf->offset and bogus
                        // addresses computed in later calls to actor()

Fix all tls_err_abort() callers to pass a negative error code
consistently and centralize the error-prone sign flip there, throwing in
a warning to catch future misuse and uninlining the function so it
really does only warn once.

Cc: stable@vger.kernel.org
Fixes: c46234ebb4d1e ("tls: RX path for ktls")
Reported-by: syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/tls.h |  9 ++-------
 net/tls/tls_sw.c  | 17 +++++++++++++----
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/include/net/tls.h b/include/net/tls.h
index 43891b28fc482..745b3bc6ce91d 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -359,6 +359,7 @@ int tls_sk_query(struct sock *sk, int optname, char __user *optval,
 		int __user *optlen);
 int tls_sk_attach(struct sock *sk, int optname, char __user *optval,
 		  unsigned int optlen);
+void tls_err_abort(struct sock *sk, int err);
 
 int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx);
 void tls_sw_strparser_arm(struct sock *sk, struct tls_context *ctx);
@@ -467,12 +468,6 @@ static inline bool tls_is_sk_tx_device_offloaded(struct sock *sk)
 #endif
 }
 
-static inline void tls_err_abort(struct sock *sk, int err)
-{
-	sk->sk_err = err;
-	sk->sk_error_report(sk);
-}
-
 static inline bool tls_bigint_increment(unsigned char *seq, int len)
 {
 	int i;
@@ -513,7 +508,7 @@ static inline void tls_advance_record_sn(struct sock *sk,
 					 struct cipher_context *ctx)
 {
 	if (tls_bigint_increment(ctx->rec_seq, prot->rec_seq_size))
-		tls_err_abort(sk, EBADMSG);
+		tls_err_abort(sk, -EBADMSG);
 
 	if (prot->version != TLS_1_3_VERSION)
 		tls_bigint_increment(ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE,
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 15395683b8e2a..eda1a5d0ef0c0 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -35,6 +35,7 @@
  * SOFTWARE.
  */
 
+#include <linux/bug.h>
 #include <linux/sched/signal.h>
 #include <linux/module.h>
 #include <linux/splice.h>
@@ -43,6 +44,14 @@
 #include <net/strparser.h>
 #include <net/tls.h>
 
+noinline void tls_err_abort(struct sock *sk, int err)
+{
+	WARN_ON_ONCE(err >= 0);
+	/* sk->sk_err should contain a positive error code. */
+	sk->sk_err = -err;
+	sk->sk_error_report(sk);
+}
+
 static int __skb_nsg(struct sk_buff *skb, int offset, int len,
                      unsigned int recursion_level)
 {
@@ -419,7 +428,7 @@ int tls_tx_records(struct sock *sk, int flags)
 
 tx_err:
 	if (rc < 0 && rc != -EAGAIN)
-		tls_err_abort(sk, EBADMSG);
+		tls_err_abort(sk, -EBADMSG);
 
 	return rc;
 }
@@ -764,7 +773,7 @@ static int tls_push_record(struct sock *sk, int flags,
 			       msg_pl->sg.size + prot->tail_size, i);
 	if (rc < 0) {
 		if (rc != -EINPROGRESS) {
-			tls_err_abort(sk, EBADMSG);
+			tls_err_abort(sk, -EBADMSG);
 			if (split) {
 				tls_ctx->pending_open_record_frags = true;
 				tls_merge_open_record(sk, rec, tmp, orig_end);
@@ -1828,7 +1837,7 @@ int tls_sw_recvmsg(struct sock *sk,
 		err = decrypt_skb_update(sk, skb, &msg->msg_iter,
 					 &chunk, &zc, async_capable);
 		if (err < 0 && err != -EINPROGRESS) {
-			tls_err_abort(sk, EBADMSG);
+			tls_err_abort(sk, -EBADMSG);
 			goto recv_end;
 		}
 
@@ -2008,7 +2017,7 @@ ssize_t tls_sw_splice_read(struct socket *sock,  loff_t *ppos,
 		}
 
 		if (err < 0) {
-			tls_err_abort(sk, EBADMSG);
+			tls_err_abort(sk, -EBADMSG);
 			goto splice_read_end;
 		}
 		ctx->decrypted = 1;
-- 
GitLab


From efe934629fff0dc8862e300cffdd9b1012be3333 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:56:08 +0200
Subject: [PATCH 0544/4878] mmc: vub300: fix control-message timeouts

commit 8c8171929116cc23f74743d99251eedadf62341a upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 88095e7b473a ("mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver")
Cc: stable@vger.kernel.org      # 3.0
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025115608.5287-1-johan@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/vub300.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 4950d10d3a191..97beece62fec4 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -576,7 +576,7 @@ static void check_vub300_port_status(struct vub300_mmc_host *vub300)
 				GET_SYSTEM_PORT_STATUS,
 				USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 				0x0000, 0x0000, &vub300->system_port_status,
-				sizeof(vub300->system_port_status), HZ);
+				sizeof(vub300->system_port_status), 1000);
 	if (sizeof(vub300->system_port_status) == retval)
 		new_system_port_status(vub300);
 }
@@ -1241,7 +1241,7 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
 						SET_INTERRUPT_PSEUDOCODE,
 						USB_DIR_OUT | USB_TYPE_VENDOR |
 						USB_RECIP_DEVICE, 0x0000, 0x0000,
-						xfer_buffer, xfer_length, HZ);
+						xfer_buffer, xfer_length, 1000);
 			kfree(xfer_buffer);
 			if (retval < 0)
 				goto copy_error_message;
@@ -1284,7 +1284,7 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
 						SET_TRANSFER_PSEUDOCODE,
 						USB_DIR_OUT | USB_TYPE_VENDOR |
 						USB_RECIP_DEVICE, 0x0000, 0x0000,
-						xfer_buffer, xfer_length, HZ);
+						xfer_buffer, xfer_length, 1000);
 			kfree(xfer_buffer);
 			if (retval < 0)
 				goto copy_error_message;
@@ -1991,7 +1991,7 @@ static void __set_clock_speed(struct vub300_mmc_host *vub300, u8 buf[8],
 		usb_control_msg(vub300->udev, usb_sndctrlpipe(vub300->udev, 0),
 				SET_CLOCK_SPEED,
 				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				0x00, 0x00, buf, buf_array_size, HZ);
+				0x00, 0x00, buf, buf_array_size, 1000);
 	if (retval != 8) {
 		dev_err(&vub300->udev->dev, "SET_CLOCK_SPEED"
 			" %dkHz failed with retval=%d\n", kHzClock, retval);
@@ -2013,14 +2013,14 @@ static void vub300_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		usb_control_msg(vub300->udev, usb_sndctrlpipe(vub300->udev, 0),
 				SET_SD_POWER,
 				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				0x0000, 0x0000, NULL, 0, HZ);
+				0x0000, 0x0000, NULL, 0, 1000);
 		/* must wait for the VUB300 u-proc to boot up */
 		msleep(600);
 	} else if ((ios->power_mode == MMC_POWER_UP) && !vub300->card_powered) {
 		usb_control_msg(vub300->udev, usb_sndctrlpipe(vub300->udev, 0),
 				SET_SD_POWER,
 				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				0x0001, 0x0000, NULL, 0, HZ);
+				0x0001, 0x0000, NULL, 0, 1000);
 		msleep(600);
 		vub300->card_powered = 1;
 	} else if (ios->power_mode == MMC_POWER_ON) {
@@ -2275,14 +2275,14 @@ static int vub300_probe(struct usb_interface *interface,
 				GET_HC_INF0,
 				USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 				0x0000, 0x0000, &vub300->hc_info,
-				sizeof(vub300->hc_info), HZ);
+				sizeof(vub300->hc_info), 1000);
 	if (retval < 0)
 		goto error5;
 	retval =
 		usb_control_msg(vub300->udev, usb_sndctrlpipe(vub300->udev, 0),
 				SET_ROM_WAIT_STATES,
 				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				firmware_rom_wait_states, 0x0000, NULL, 0, HZ);
+				firmware_rom_wait_states, 0x0000, NULL, 0, 1000);
 	if (retval < 0)
 		goto error5;
 	dev_info(&vub300->udev->dev,
@@ -2297,7 +2297,7 @@ static int vub300_probe(struct usb_interface *interface,
 				GET_SYSTEM_PORT_STATUS,
 				USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 				0x0000, 0x0000, &vub300->system_port_status,
-				sizeof(vub300->system_port_status), HZ);
+				sizeof(vub300->system_port_status), 1000);
 	if (retval < 0) {
 		goto error4;
 	} else if (sizeof(vub300->system_port_status) == retval) {
-- 
GitLab


From 44c2bc2a6bbe6da262533c57969b14d1d1679c68 Mon Sep 17 00:00:00 2001
From: Wenbin Mei <wenbin.mei@mediatek.com>
Date: Tue, 26 Oct 2021 15:08:12 +0800
Subject: [PATCH 0545/4878] mmc: cqhci: clear HALT state after CQE enable

commit 92b18252b91de567cd875f2e84722b10ab34ee28 upstream.

While mmc0 enter suspend state, we need halt CQE to send legacy cmd(flush
cache) and disable cqe, for resume back, we enable CQE and not clear HALT
state.
In this case MediaTek mmc host controller will keep the value for HALT
state after CQE disable/enable flow, so the next CQE transfer after resume
will be timeout due to CQE is in HALT state, the log as below:
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: timeout for tag 2
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: ============ CQHCI REGISTER DUMP ===========
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Caps:      0x100020b6 | Version:  0x00000510
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Config:    0x00001103 | Control:  0x00000001
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Int stat:  0x00000000 | Int enab: 0x00000006
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Int sig:   0x00000006 | Int Coal: 0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: TDL base:  0xfd05f000 | TDL up32: 0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Doorbell:  0x8000203c | TCN:      0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Dev queue: 0x00000000 | Dev Pend: 0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Task clr:  0x00000000 | SSC1:     0x00001000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: SSC2:      0x00000001 | DCMD rsp: 0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: RED mask:  0xfdf9a080 | TERRI:    0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: Resp idx:  0x00000000 | Resp arg: 0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: CRNQP:     0x00000000 | CRNQDUN:  0x00000000
<4>.(4)[318:kworker/4:1H]mmc0: cqhci: CRNQIS:    0x00000000 | CRNQIE:   0x00000000

This change check HALT state after CQE enable, if CQE is in HALT state, we
will clear it.

Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Cc: stable@vger.kernel.org
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: a4080225f51d ("mmc: cqhci: support for command queue enabled host")
Link: https://lore.kernel.org/r/20211026070812.9359-1-wenbin.mei@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/cqhci.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/cqhci.c b/drivers/mmc/host/cqhci.c
index 697fe40756bf2..7ba4f714106f9 100644
--- a/drivers/mmc/host/cqhci.c
+++ b/drivers/mmc/host/cqhci.c
@@ -273,6 +273,9 @@ static void __cqhci_enable(struct cqhci_host *cq_host)
 
 	cqhci_writel(cq_host, cqcfg, CQHCI_CFG);
 
+	if (cqhci_readl(cq_host, CQHCI_CTL) & CQHCI_HALT)
+		cqhci_writel(cq_host, 0, CQHCI_CTL);
+
 	mmc->cqe_on = true;
 
 	if (cq_host->ops->enable)
-- 
GitLab


From 12a46f72f4994cf17b1dd3d94d11094ea5a15f86 Mon Sep 17 00:00:00 2001
From: Wenbin Mei <wenbin.mei@mediatek.com>
Date: Thu, 28 Oct 2021 10:20:49 +0800
Subject: [PATCH 0546/4878] mmc: mediatek: Move cqhci init behind ungate clock

commit e8a1ff65927080278e6826f797b7c197fb2611a6 upstream.

We must enable clock before cqhci init, because crypto needs read
information from CQHCI registers, otherwise, it will hang in MediaTek mmc
host controller.

Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Fixes: 88bd652b3c74 ("mmc: mediatek: command queue support")
Cc: stable@vger.kernel.org
Acked-by: Chaotian Jing <chaotian.jing@mediatek.com>
Link: https://lore.kernel.org/r/20211028022049.22129-1-wenbin.mei@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/mtk-sd.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index dc84e2dff4085..fb8b9475b1d01 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -2503,6 +2503,25 @@ static int msdc_drv_probe(struct platform_device *pdev)
 		host->dma_mask = DMA_BIT_MASK(32);
 	mmc_dev(mmc)->dma_mask = &host->dma_mask;
 
+	host->timeout_clks = 3 * 1048576;
+	host->dma.gpd = dma_alloc_coherent(&pdev->dev,
+				2 * sizeof(struct mt_gpdma_desc),
+				&host->dma.gpd_addr, GFP_KERNEL);
+	host->dma.bd = dma_alloc_coherent(&pdev->dev,
+				MAX_BD_NUM * sizeof(struct mt_bdma_desc),
+				&host->dma.bd_addr, GFP_KERNEL);
+	if (!host->dma.gpd || !host->dma.bd) {
+		ret = -ENOMEM;
+		goto release_mem;
+	}
+	msdc_init_gpd_bd(host, &host->dma);
+	INIT_DELAYED_WORK(&host->req_timeout, msdc_request_timeout);
+	spin_lock_init(&host->lock);
+
+	platform_set_drvdata(pdev, mmc);
+	msdc_ungate_clock(host);
+	msdc_init_hw(host);
+
 	if (mmc->caps2 & MMC_CAP2_CQE) {
 		host->cq_host = devm_kzalloc(mmc->parent,
 					     sizeof(*host->cq_host),
@@ -2523,25 +2542,6 @@ static int msdc_drv_probe(struct platform_device *pdev)
 		mmc->max_seg_size = 64 * 1024;
 	}
 
-	host->timeout_clks = 3 * 1048576;
-	host->dma.gpd = dma_alloc_coherent(&pdev->dev,
-				2 * sizeof(struct mt_gpdma_desc),
-				&host->dma.gpd_addr, GFP_KERNEL);
-	host->dma.bd = dma_alloc_coherent(&pdev->dev,
-				MAX_BD_NUM * sizeof(struct mt_bdma_desc),
-				&host->dma.bd_addr, GFP_KERNEL);
-	if (!host->dma.gpd || !host->dma.bd) {
-		ret = -ENOMEM;
-		goto release_mem;
-	}
-	msdc_init_gpd_bd(host, &host->dma);
-	INIT_DELAYED_WORK(&host->req_timeout, msdc_request_timeout);
-	spin_lock_init(&host->lock);
-
-	platform_set_drvdata(pdev, mmc);
-	msdc_ungate_clock(host);
-	msdc_init_hw(host);
-
 	ret = devm_request_irq(&pdev->dev, host->irq, msdc_irq,
 			       IRQF_TRIGGER_NONE, pdev->name, host);
 	if (ret)
-- 
GitLab


From a95a76fc01a0e7b79c02cb73962fea44f6e3c4a0 Mon Sep 17 00:00:00 2001
From: Jaehoon Chung <jh80.chung@samsung.com>
Date: Fri, 22 Oct 2021 17:21:06 +0900
Subject: [PATCH 0547/4878] mmc: dw_mmc: exynos: fix the finding clock sample
 value

commit 697542bceae51f7620af333b065dd09d213629fb upstream.

Even though there are candiates value if can't find best value, it's
returned -EIO. It's not proper behavior.
If there is not best value, use a first candiate value to work eMMC.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Cc: stable@vger.kernel.org
Fixes: c537a1c5ff63 ("mmc: dw_mmc: exynos: add variable delay tuning sequence")
Link: https://lore.kernel.org/r/20211022082106.1557-1-jh80.chung@samsung.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 0c75810812a0a..1f8a3c0ddfe11 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -464,6 +464,18 @@ static s8 dw_mci_exynos_get_best_clksmpl(u8 candiates)
 		}
 	}
 
+	/*
+	 * If there is no cadiates value, then it needs to return -EIO.
+	 * If there are candiates values and don't find bset clk sample value,
+	 * then use a first candiates clock sample value.
+	 */
+	for (i = 0; i < iter; i++) {
+		__c = ror8(candiates, i);
+		if ((__c & 0x1) == 0x1) {
+			loc = i;
+			goto out;
+		}
+	}
 out:
 	return loc;
 }
@@ -494,6 +506,8 @@ static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
 		priv->tuned_sample = found;
 	} else {
 		ret = -EIO;
+		dev_warn(&mmc->class_dev,
+			"There is no candiates value about clksmpl!\n");
 	}
 
 	return ret;
-- 
GitLab


From ee3213b117ce93d8df90d43e3eecb89b3c8e6f92 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Mon, 4 Oct 2021 10:49:35 +0800
Subject: [PATCH 0548/4878] mmc: sdhci: Map more voltage level to
 SDHCI_POWER_330

commit 4217d07b9fb328751f877d3bd9550122014860a2 upstream.

On Thundercomm TurboX CM2290, the eMMC OCR reports vdd = 23 (3.5 ~ 3.6 V),
which is being treated as an invalid value by sdhci_set_power_noreg().
And thus eMMC is totally broken on the platform.

[    1.436599] ------------[ cut here ]------------
[    1.436606] mmc0: Invalid vdd 0x17
[    1.436640] WARNING: CPU: 2 PID: 69 at drivers/mmc/host/sdhci.c:2048 sdhci_set_power_noreg+0x168/0x2b4
[    1.436655] Modules linked in:
[    1.436662] CPU: 2 PID: 69 Comm: kworker/u8:1 Tainted: G        W         5.15.0-rc1+ #137
[    1.436669] Hardware name: Thundercomm TurboX CM2290 (DT)
[    1.436674] Workqueue: events_unbound async_run_entry_fn
[    1.436685] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    1.436692] pc : sdhci_set_power_noreg+0x168/0x2b4
[    1.436698] lr : sdhci_set_power_noreg+0x168/0x2b4
[    1.436703] sp : ffff800010803a60
[    1.436705] x29: ffff800010803a60 x28: ffff6a9102465f00 x27: ffff6a9101720a70
[    1.436715] x26: ffff6a91014de1c0 x25: ffff6a91014de010 x24: ffff6a91016af280
[    1.436724] x23: ffffaf7b1b276640 x22: 0000000000000000 x21: ffff6a9101720000
[    1.436733] x20: ffff6a9101720370 x19: ffff6a9101720580 x18: 0000000000000020
[    1.436743] x17: 0000000000000000 x16: 0000000000000004 x15: ffffffffffffffff
[    1.436751] x14: 0000000000000000 x13: 00000000fffffffd x12: ffffaf7b1b84b0bc
[    1.436760] x11: ffffaf7b1b720d10 x10: 000000000000000a x9 : ffff800010803a60
[    1.436769] x8 : 000000000000000a x7 : 000000000000000f x6 : 00000000fffff159
[    1.436778] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 00000000ffffffff
[    1.436787] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff6a9101718d80
[    1.436797] Call trace:
[    1.436800]  sdhci_set_power_noreg+0x168/0x2b4
[    1.436805]  sdhci_set_ios+0xa0/0x7fc
[    1.436811]  mmc_power_up.part.0+0xc4/0x164
[    1.436818]  mmc_start_host+0xa0/0xb0
[    1.436824]  mmc_add_host+0x60/0x90
[    1.436830]  __sdhci_add_host+0x174/0x330
[    1.436836]  sdhci_msm_probe+0x7c0/0x920
[    1.436842]  platform_probe+0x68/0xe0
[    1.436850]  really_probe.part.0+0x9c/0x31c
[    1.436857]  __driver_probe_device+0x98/0x144
[    1.436863]  driver_probe_device+0xc8/0x15c
[    1.436869]  __device_attach_driver+0xb4/0x120
[    1.436875]  bus_for_each_drv+0x78/0xd0
[    1.436881]  __device_attach_async_helper+0xac/0xd0
[    1.436888]  async_run_entry_fn+0x34/0x110
[    1.436895]  process_one_work+0x1d0/0x354
[    1.436903]  worker_thread+0x13c/0x470
[    1.436910]  kthread+0x150/0x160
[    1.436915]  ret_from_fork+0x10/0x20
[    1.436923] ---[ end trace fcfac44cb045c3a8 ]---

Fix the issue by mapping MMC_VDD_35_36 (and MMC_VDD_34_35) to
SDHCI_POWER_330 as well.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211004024935.15326-1-shawn.guo@linaro.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index b1e1d327cb8eb..07d131fac7606 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2043,6 +2043,12 @@ void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode,
 			break;
 		case MMC_VDD_32_33:
 		case MMC_VDD_33_34:
+		/*
+		 * 3.4 ~ 3.6V are valid only for those platforms where it's
+		 * known that the voltage range is supported by hardware.
+		 */
+		case MMC_VDD_34_35:
+		case MMC_VDD_35_36:
 			pwr = SDHCI_POWER_330;
 			break;
 		default:
-- 
GitLab


From 01169a43353d4cb895d1957cd70dc553da3f944e Mon Sep 17 00:00:00 2001
From: Haibo Chen <haibo.chen@nxp.com>
Date: Fri, 15 Oct 2021 10:00:36 +0800
Subject: [PATCH 0549/4878] mmc: sdhci-esdhc-imx: clear the buffer_read_ready
 to reset standard tuning circuit

commit 9af372dc70e9fdcbb70939dac75365e7b88580b4 upstream.

To reset standard tuning circuit completely, after clear ESDHC_MIX_CTRL_EXE_TUNE,
also need to clear bit buffer_read_ready, this operation will finally clear the
USDHC IP internal logic flag execute_tuning_with_clr_buf, make sure the following
normal data transfer will not be impacted by standard tuning logic used before.

Find this issue when do quick SD card insert/remove stress test. During standard
tuning prodedure, if remove SD card, USDHC standard tuning logic can't clear the
internal flag execute_tuning_with_clr_buf. Next time when insert SD card, all
data related commands can't get any data related interrupts, include data transfer
complete interrupt, data timeout interrupt, data CRC interrupt, data end bit interrupt.
Always trigger software timeout issue. Even reset the USDHC through bits in register
SYS_CTRL (0x2C, bit28 reset tuning, bit26 reset data, bit 25 reset command, bit 24
reset all) can't recover this. From the user's point of view, USDHC stuck, SD can't
be recognized any more.

Fixes: d9370424c948 ("mmc: sdhci-esdhc-imx: reset tuning circuit when power on mmc card")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1634263236-6111-1-git-send-email-haibo.chen@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index d28809e479628..20cbd71cba9d9 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1157,6 +1157,7 @@ static void esdhc_reset_tuning(struct sdhci_host *host)
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
 	u32 ctrl;
+	int ret;
 
 	/* Reset the tuning circuit */
 	if (esdhc_is_usdhc(imx_data)) {
@@ -1169,7 +1170,22 @@ static void esdhc_reset_tuning(struct sdhci_host *host)
 		} else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
 			ctrl = readl(host->ioaddr + SDHCI_AUTO_CMD_STATUS);
 			ctrl &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
+			ctrl &= ~ESDHC_MIX_CTRL_EXE_TUNE;
 			writel(ctrl, host->ioaddr + SDHCI_AUTO_CMD_STATUS);
+			/* Make sure ESDHC_MIX_CTRL_EXE_TUNE cleared */
+			ret = readl_poll_timeout(host->ioaddr + SDHCI_AUTO_CMD_STATUS,
+				ctrl, !(ctrl & ESDHC_MIX_CTRL_EXE_TUNE), 1, 50);
+			if (ret == -ETIMEDOUT)
+				dev_warn(mmc_dev(host->mmc),
+				 "Warning! clear execute tuning bit failed\n");
+			/*
+			 * SDHCI_INT_DATA_AVAIL is W1C bit, set this bit will clear the
+			 * usdhc IP internal logic flag execute_tuning_with_clr_buf, which
+			 * will finally make sure the normal data transfer logic correct.
+			 */
+			ctrl = readl(host->ioaddr + SDHCI_INT_STATUS);
+			ctrl |= SDHCI_INT_DATA_AVAIL;
+			writel(ctrl, host->ioaddr + SDHCI_INT_STATUS);
 		}
 	}
 }
-- 
GitLab


From 5043fbd294f5909a080ade0f04b70a4da9e122b7 Mon Sep 17 00:00:00 2001
From: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com>
Date: Thu, 28 Oct 2021 14:36:17 -0700
Subject: [PATCH 0550/4878] ocfs2: fix race between searching chunks and
 release journal_head from buffer_head

commit 6f1b228529ae49b0f85ab89bcdb6c365df401558 upstream.

Encountered a race between ocfs2_test_bg_bit_allocatable() and
jbd2_journal_put_journal_head() resulting in the below vmcore.

  PID: 106879  TASK: ffff880244ba9c00  CPU: 2   COMMAND: "loop3"
  Call trace:
    panic
    oops_end
    no_context
    __bad_area_nosemaphore
    bad_area_nosemaphore
    __do_page_fault
    do_page_fault
    page_fault
      [exception RIP: ocfs2_block_group_find_clear_bits+316]
    ocfs2_block_group_find_clear_bits [ocfs2]
    ocfs2_cluster_group_search [ocfs2]
    ocfs2_search_chain [ocfs2]
    ocfs2_claim_suballoc_bits [ocfs2]
    __ocfs2_claim_clusters [ocfs2]
    ocfs2_claim_clusters [ocfs2]
    ocfs2_local_alloc_slide_window [ocfs2]
    ocfs2_reserve_local_alloc_bits [ocfs2]
    ocfs2_reserve_clusters_with_limit [ocfs2]
    ocfs2_reserve_clusters [ocfs2]
    ocfs2_lock_refcount_allocators [ocfs2]
    ocfs2_make_clusters_writable [ocfs2]
    ocfs2_replace_cow [ocfs2]
    ocfs2_refcount_cow [ocfs2]
    ocfs2_file_write_iter [ocfs2]
    lo_rw_aio
    loop_queue_work
    kthread_worker_fn
    kthread
    ret_from_fork

When ocfs2_test_bg_bit_allocatable() called bh2jh(bg_bh), the
bg_bh->b_private NULL as jbd2_journal_put_journal_head() raced and
released the jounal head from the buffer head.  Needed to take bit lock
for the bit 'BH_JournalHead' to fix this race.

Link: https://lkml.kernel.org/r/1634820718-6043-1-git-send-email-gautham.ananthakrishna@oracle.com
Signed-off-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: <rajesh.sivaramasubramaniom@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ocfs2/suballoc.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 8c8cf7f4eb34e..e7d04adb6cb87 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -1253,7 +1253,7 @@ static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh,
 {
 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
 	struct journal_head *jh;
-	int ret;
+	int ret = 1;
 
 	if (ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap))
 		return 0;
@@ -1261,14 +1261,18 @@ static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh,
 	if (!buffer_jbd(bg_bh))
 		return 1;
 
-	jh = bh2jh(bg_bh);
-	spin_lock(&jh->b_state_lock);
-	bg = (struct ocfs2_group_desc *) jh->b_committed_data;
-	if (bg)
-		ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap);
-	else
-		ret = 1;
-	spin_unlock(&jh->b_state_lock);
+	jbd_lock_bh_journal_head(bg_bh);
+	if (buffer_jbd(bg_bh)) {
+		jh = bh2jh(bg_bh);
+		spin_lock(&jh->b_state_lock);
+		bg = (struct ocfs2_group_desc *) jh->b_committed_data;
+		if (bg)
+			ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap);
+		else
+			ret = 1;
+		spin_unlock(&jh->b_state_lock);
+	}
+	jbd_unlock_bh_journal_head(bg_bh);
 
 	return ret;
 }
-- 
GitLab


From db1191a529e45c41bfd7692ccc5157fe90dc4a9c Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagi@grimberg.me>
Date: Sun, 24 Oct 2021 10:43:31 +0300
Subject: [PATCH 0551/4878] nvme-tcp: fix H2CData PDU send accounting (again)

commit 25e1f67eda4a19c91dc05c84d6d413c53efb447b upstream.

We should not access request members after the last send, even to
determine if indeed it was the last data payload send. The reason is
that a completion could have arrived and trigger a new execution of the
request which overridden these members. This was fixed by commit
825619b09ad3 ("nvme-tcp: fix possible use-after-completion").

Commit e371af033c56 broke that assumption again to address cases where
multiple r2t pdus are sent per request. To fix it, we need to record the
request data_sent and data_len and after the payload network send we
reference these counters to determine weather we should advance the
request iterator.

Fixes: e371af033c56 ("nvme-tcp: fix incorrect h2cdata pdu offset accounting")
Reported-by: Keith Busch <kbusch@kernel.org>
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/tcp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 05ad6bee085c1..f3a7b6c1bdfa3 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -910,12 +910,14 @@ static void nvme_tcp_fail_request(struct nvme_tcp_request *req)
 static int nvme_tcp_try_send_data(struct nvme_tcp_request *req)
 {
 	struct nvme_tcp_queue *queue = req->queue;
+	int req_data_len = req->data_len;
 
 	while (true) {
 		struct page *page = nvme_tcp_req_cur_page(req);
 		size_t offset = nvme_tcp_req_cur_offset(req);
 		size_t len = nvme_tcp_req_cur_length(req);
 		bool last = nvme_tcp_pdu_last_send(req, len);
+		int req_data_sent = req->data_sent;
 		int ret, flags = MSG_DONTWAIT;
 
 		if (last && !queue->data_digest && !nvme_tcp_queue_more(queue))
@@ -942,7 +944,7 @@ static int nvme_tcp_try_send_data(struct nvme_tcp_request *req)
 		 * in the request where we don't want to modify it as we may
 		 * compete with the RX path completing the request.
 		 */
-		if (req->data_sent + ret < req->data_len)
+		if (req_data_sent + ret < req_data_len)
 			nvme_tcp_advance_req(req, ret);
 
 		/* fully successful last send in current PDU */
-- 
GitLab


From fa29cec42c2d306cae0d5dbe0d92f0185253e8dc Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 30 Sep 2021 13:11:21 +0200
Subject: [PATCH 0552/4878] cfg80211: scan: fix RCU in
 cfg80211_add_nontrans_list()

commit a2083eeb119fb9307258baea9b7c243ca9a2e0b6 upstream.

The SSID pointer is pointing to RCU protected data, so we
need to have it under rcu_read_lock() for the entire use.
Fix this.

Cc: stable@vger.kernel.org
Fixes: 0b8fb8235be8 ("cfg80211: Parsing of Multiple BSSID information in scanning")
Link: https://lore.kernel.org/r/20210930131120.6ddfc603aa1d.I2137344c4e2426525b1a8e4ce5fca82f8ecbfe7e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/wireless/scan.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index fab1f0d504036..fd614a5a00b42 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -418,14 +418,17 @@ cfg80211_add_nontrans_list(struct cfg80211_bss *trans_bss,
 	}
 	ssid_len = ssid[1];
 	ssid = ssid + 2;
-	rcu_read_unlock();
 
 	/* check if nontrans_bss is in the list */
 	list_for_each_entry(bss, &trans_bss->nontrans_list, nontrans_list) {
-		if (is_bss(bss, nontrans_bss->bssid, ssid, ssid_len))
+		if (is_bss(bss, nontrans_bss->bssid, ssid, ssid_len)) {
+			rcu_read_unlock();
 			return 0;
+		}
 	}
 
+	rcu_read_unlock();
+
 	/* add to the list */
 	list_add_tail(&nontrans_bss->nontrans_list, &trans_bss->nontrans_list);
 	return 0;
-- 
GitLab


From 4c22227e39c7a0b4dab55617ee8d34d171fab8d4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 25 Oct 2021 13:31:12 +0200
Subject: [PATCH 0553/4878] cfg80211: fix management registrations locking

commit 09b1d5dc6ce1c9151777f6c4e128a59457704c97 upstream.

The management registrations locking was broken, the list was
locked for each wdev, but cfg80211_mgmt_registrations_update()
iterated it without holding all the correct spinlocks, causing
list corruption.

Rather than trying to fix it with fine-grained locking, just
move the lock to the wiphy/rdev (still need the list on each
wdev), we already need to hold the wdev lock to change it, so
there's no contention on the lock in any case. This trivially
fixes the bug since we hold one wdev's lock already, and now
will hold the lock that protects all lists.

Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Fixes: 6cd536fe62ef ("cfg80211: change internal management frame registration API")
Link: https://lore.kernel.org/r/20211025133111.5cf733eab0f4.I7b0abb0494ab712f74e2efcd24bb31ac33f7eee9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/cfg80211.h |  2 --
 net/wireless/core.c    |  2 +-
 net/wireless/core.h    |  2 ++
 net/wireless/mlme.c    | 26 ++++++++++++++------------
 4 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8a1bf2dbadd0c..2a819be384a78 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5202,7 +5202,6 @@ struct cfg80211_cqm_config;
  *	netdev and may otherwise be used by driver read-only, will be update
  *	by cfg80211 on change_interface
  * @mgmt_registrations: list of registrations for management frames
- * @mgmt_registrations_lock: lock for the list
  * @mgmt_registrations_need_update: mgmt registrations were updated,
  *	need to propagate the update to the driver
  * @mtx: mutex used to lock data in this struct, may be used by drivers
@@ -5249,7 +5248,6 @@ struct wireless_dev {
 	u32 identifier;
 
 	struct list_head mgmt_registrations;
-	spinlock_t mgmt_registrations_lock;
 	u8 mgmt_registrations_need_update:1;
 
 	struct mutex mtx;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 240282c083aa7..3f4554723761d 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -501,6 +501,7 @@ use_default_name:
 	INIT_WORK(&rdev->propagate_cac_done_wk, cfg80211_propagate_cac_done_wk);
 	INIT_WORK(&rdev->mgmt_registrations_update_wk,
 		  cfg80211_mgmt_registrations_update_wk);
+	spin_lock_init(&rdev->mgmt_registrations_lock);
 
 #ifdef CONFIG_CFG80211_DEFAULT_PS
 	rdev->wiphy.flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
@@ -1256,7 +1257,6 @@ void cfg80211_init_wdev(struct wireless_dev *wdev)
 	INIT_LIST_HEAD(&wdev->event_list);
 	spin_lock_init(&wdev->event_lock);
 	INIT_LIST_HEAD(&wdev->mgmt_registrations);
-	spin_lock_init(&wdev->mgmt_registrations_lock);
 	INIT_LIST_HEAD(&wdev->pmsr_list);
 	spin_lock_init(&wdev->pmsr_lock);
 	INIT_WORK(&wdev->pmsr_free_wk, cfg80211_pmsr_free_wk);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 7df91f9402124..a3362a32acb32 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -101,6 +101,8 @@ struct cfg80211_registered_device {
 	struct work_struct propagate_cac_done_wk;
 
 	struct work_struct mgmt_registrations_update_wk;
+	/* lock for all wdev lists */
+	spinlock_t mgmt_registrations_lock;
 
 	/* must be last because of the way we do wiphy_priv(),
 	 * and it should at least be aligned to NETDEV_ALIGN */
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 0ac820780437d..6dcfc5a348742 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -448,9 +448,9 @@ static void cfg80211_mgmt_registrations_update(struct wireless_dev *wdev)
 
 	ASSERT_RTNL();
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 	if (!wdev->mgmt_registrations_need_update) {
-		spin_unlock_bh(&wdev->mgmt_registrations_lock);
+		spin_unlock_bh(&rdev->mgmt_registrations_lock);
 		return;
 	}
 
@@ -475,7 +475,7 @@ static void cfg80211_mgmt_registrations_update(struct wireless_dev *wdev)
 	rcu_read_unlock();
 
 	wdev->mgmt_registrations_need_update = 0;
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	rdev_update_mgmt_frame_registrations(rdev, wdev, &upd);
 }
@@ -499,6 +499,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 				int match_len, bool multicast_rx,
 				struct netlink_ext_ack *extack)
 {
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_mgmt_registration *reg, *nreg;
 	int err = 0;
 	u16 mgmt_type;
@@ -544,7 +545,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 	if (!nreg)
 		return -ENOMEM;
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 
 	list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
 		int mlen = min(match_len, reg->match_len);
@@ -579,7 +580,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 		list_add(&nreg->list, &wdev->mgmt_registrations);
 	}
 	wdev->mgmt_registrations_need_update = 1;
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	cfg80211_mgmt_registrations_update(wdev);
 
@@ -587,7 +588,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 
  out:
 	kfree(nreg);
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	return err;
 }
@@ -598,7 +599,7 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
 	struct cfg80211_mgmt_registration *reg, *tmp;
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 
 	list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
 		if (reg->nlportid != nlportid)
@@ -611,7 +612,7 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 		schedule_work(&rdev->mgmt_registrations_update_wk);
 	}
 
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	if (nlportid && rdev->crit_proto_nlportid == nlportid) {
 		rdev->crit_proto_nlportid = 0;
@@ -624,15 +625,16 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 
 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
 {
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct cfg80211_mgmt_registration *reg, *tmp;
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 	list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
 		list_del(&reg->list);
 		kfree(reg);
 	}
 	wdev->mgmt_registrations_need_update = 1;
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	cfg80211_mgmt_registrations_update(wdev);
 }
@@ -780,7 +782,7 @@ bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq, int sig_dbm,
 	data = buf + ieee80211_hdrlen(mgmt->frame_control);
 	data_len = len - ieee80211_hdrlen(mgmt->frame_control);
 
-	spin_lock_bh(&wdev->mgmt_registrations_lock);
+	spin_lock_bh(&rdev->mgmt_registrations_lock);
 
 	list_for_each_entry(reg, &wdev->mgmt_registrations, list) {
 		if (reg->frame_type != ftype)
@@ -804,7 +806,7 @@ bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq, int sig_dbm,
 		break;
 	}
 
-	spin_unlock_bh(&wdev->mgmt_registrations_lock);
+	spin_unlock_bh(&rdev->mgmt_registrations_lock);
 
 	trace_cfg80211_return_bool(result);
 	return result;
-- 
GitLab


From 8fb858b74ac517763aa97bd3acaacbe31167ff14 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 26 Oct 2021 12:36:17 +0200
Subject: [PATCH 0554/4878] net: lan78xx: fix division by zero in send path

commit db6c3c064f5d55fa9969f33eafca3cdbefbb3541 upstream.

Add the missing endpoint max-packet sanity check to probe() to avoid
division by zero in lan78xx_tx_bh() in case a malicious device has
broken descriptors (or when doing descriptor fuzz testing).

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Cc: stable@vger.kernel.org      # 4.3
Cc: Woojung.Huh@microchip.com <Woojung.Huh@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/lan78xx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index a5cd42bae9621..a4f9912b36366 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -3745,6 +3745,12 @@ static int lan78xx_probe(struct usb_interface *intf,
 
 	dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1);
 
+	/* Reject broken descriptors. */
+	if (dev->maxpacket == 0) {
+		ret = -ENODEV;
+		goto out4;
+	}
+
 	/* driver requires remote-wakeup capability during autosuspend. */
 	intf->needs_remote_wakeup = 1;
 
-- 
GitLab


From 69a7fa5cb0de06c8956b040f19a7248c8c8308ca Mon Sep 17 00:00:00 2001
From: Rongwei Wang <rongwei.wang@linux.alibaba.com>
Date: Thu, 28 Oct 2021 14:36:27 -0700
Subject: [PATCH 0555/4878] mm, thp: bail out early in collapse_file for
 writeback page

commit 74c42e1baacf206338b1dd6b6199ac964512b5bb upstream.

Currently collapse_file does not explicitly check PG_writeback, instead,
page_has_private and try_to_release_page are used to filter writeback
pages.  This does not work for xfs with blocksize equal to or larger
than pagesize, because in such case xfs has no page->private.

This makes collapse_file bail out early for writeback page.  Otherwise,
xfs end_page_writeback will panic as follows.

  page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:ffff0003f88c86a8 index:0x0 pfn:0x84ef32
  aops:xfs_address_space_operations [xfs] ino:30000b7 dentry name:"libtest.so"
  flags: 0x57fffe0000008027(locked|referenced|uptodate|active|writeback)
  raw: 57fffe0000008027 ffff80001b48bc28 ffff80001b48bc28 ffff0003f88c86a8
  raw: 0000000000000000 0000000000000000 00000000ffffffff ffff0000c3e9a000
  page dumped because: VM_BUG_ON_PAGE(((unsigned int) page_ref_count(page) + 127u <= 127u))
  page->mem_cgroup:ffff0000c3e9a000
  ------------[ cut here ]------------
  kernel BUG at include/linux/mm.h:1212!
  Internal error: Oops - BUG: 0 [#1] SMP
  Modules linked in:
  BUG: Bad page state in process khugepaged  pfn:84ef32
   xfs(E)
  page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:0 index:0x0 pfn:0x84ef32
   libcrc32c(E) rfkill(E) aes_ce_blk(E) crypto_simd(E) ...
  CPU: 25 PID: 0 Comm: swapper/25 Kdump: loaded Tainted: ...
  pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--)
  Call trace:
    end_page_writeback+0x1c0/0x214
    iomap_finish_page_writeback+0x13c/0x204
    iomap_finish_ioend+0xe8/0x19c
    iomap_writepage_end_bio+0x38/0x50
    bio_endio+0x168/0x1ec
    blk_update_request+0x278/0x3f0
    blk_mq_end_request+0x34/0x15c
    virtblk_request_done+0x38/0x74 [virtio_blk]
    blk_done_softirq+0xc4/0x110
    __do_softirq+0x128/0x38c
    __irq_exit_rcu+0x118/0x150
    irq_exit+0x1c/0x30
    __handle_domain_irq+0x8c/0xf0
    gic_handle_irq+0x84/0x108
    el1_irq+0xcc/0x180
    arch_cpu_idle+0x18/0x40
    default_idle_call+0x4c/0x1a0
    cpuidle_idle_call+0x168/0x1e0
    do_idle+0xb4/0x104
    cpu_startup_entry+0x30/0x9c
    secondary_start_kernel+0x104/0x180
  Code: d4210000 b0006161 910c8021 94013f4d (d4210000)
  ---[ end trace 4a88c6a074082f8c ]---
  Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt

Link: https://lkml.kernel.org/r/20211022023052.33114-1-rongwei.wang@linux.alibaba.com
Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Rongwei Wang <rongwei.wang@linux.alibaba.com>
Signed-off-by: Xu Yu <xuyu@linux.alibaba.com>
Suggested-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Song Liu <song@kernel.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/khugepaged.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index ee88125785638..ff389d970b683 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1758,6 +1758,10 @@ static void collapse_file(struct mm_struct *mm,
 				filemap_flush(mapping);
 				result = SCAN_FAIL;
 				goto xa_unlocked;
+			} else if (PageWriteback(page)) {
+				xas_unlock_irq(&xas);
+				result = SCAN_FAIL;
+				goto xa_unlocked;
 			} else if (trylock_page(page)) {
 				get_page(page);
 				xas_unlock_irq(&xas);
@@ -1793,7 +1797,8 @@ static void collapse_file(struct mm_struct *mm,
 			goto out_unlock;
 		}
 
-		if (!is_shmem && PageDirty(page)) {
+		if (!is_shmem && (PageDirty(page) ||
+				  PageWriteback(page))) {
 			/*
 			 * khugepaged only works on read-only fd, so this
 			 * page is dirty because it hasn't been flushed
-- 
GitLab


From c21b4002214c1c7e7b627b9b53375612f7aab6db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Wed, 20 Oct 2021 19:19:46 +0200
Subject: [PATCH 0556/4878] drm/ttm: fix memleak in ttm_transfered_destroy
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 0db55f9a1bafbe3dac750ea669de9134922389b5 upstream.

We need to cleanup the fences for ghost objects as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reported-by: Erhard F. <erhard_f@mailbox.org>
Tested-by: Erhard F. <erhard_f@mailbox.org>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447
CC: <stable@vger.kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211020173211.2247-1-christian.koenig@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/ttm/ttm_bo_util.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index fb2a25f8408fc..8fba425a76268 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -322,6 +322,7 @@ static void ttm_transfered_destroy(struct ttm_buffer_object *bo)
 	struct ttm_transfer_obj *fbo;
 
 	fbo = container_of(bo, struct ttm_transfer_obj, base);
+	dma_resv_fini(&fbo->base.base._resv);
 	ttm_bo_put(fbo->bo);
 	kfree(fbo);
 }
-- 
GitLab


From eb3b6805e3e9d98b2507201fd061a231988ce623 Mon Sep 17 00:00:00 2001
From: Thelford Williams <tdwilliamsiv@gmail.com>
Date: Wed, 13 Oct 2021 16:04:13 -0400
Subject: [PATCH 0557/4878] drm/amdgpu: fix out of bounds write

commit 5afa7898ab7a0ec9c28556a91df714bf3c2f725e upstream.

Size can be any value and is user controlled resulting in overwriting the
40 byte array wr_buf with an arbitrary length of data from buf.

Signed-off-by: Thelford Williams <tdwilliamsiv@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index fbb65c95464b3..e43f82bcb231a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -264,7 +264,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
 	if (!wr_buf)
 		return -ENOSPC;
 
-	if (parse_write_buffer_into_params(wr_buf, size,
+	if (parse_write_buffer_into_params(wr_buf, wr_buf_size,
 					   (long *)param, buf,
 					   max_param_num,
 					   &param_nums)) {
-- 
GitLab


From 01599bf7cc2b49c3d2be886cb438647dc25446ed Mon Sep 17 00:00:00 2001
From: Quanyang Wang <quanyang.wang@windriver.com>
Date: Mon, 18 Oct 2021 15:56:23 +0800
Subject: [PATCH 0558/4878] cgroup: Fix memory leak caused by missing
 cgroup_bpf_offline

commit 04f8ef5643bcd8bcde25dfdebef998aea480b2ba upstream.

When enabling CONFIG_CGROUP_BPF, kmemleak can be observed by running
the command as below:

    $mount -t cgroup -o none,name=foo cgroup cgroup/
    $umount cgroup/

unreferenced object 0xc3585c40 (size 64):
  comm "mount", pid 425, jiffies 4294959825 (age 31.990s)
  hex dump (first 32 bytes):
    01 00 00 80 84 8c 28 c0 00 00 00 00 00 00 00 00  ......(.........
    00 00 00 00 00 00 00 00 6c 43 a0 c3 00 00 00 00  ........lC......
  backtrace:
    [<e95a2f9e>] cgroup_bpf_inherit+0x44/0x24c
    [<1f03679c>] cgroup_setup_root+0x174/0x37c
    [<ed4b0ac5>] cgroup1_get_tree+0x2c0/0x4a0
    [<f85b12fd>] vfs_get_tree+0x24/0x108
    [<f55aec5c>] path_mount+0x384/0x988
    [<e2d5e9cd>] do_mount+0x64/0x9c
    [<208c9cfe>] sys_mount+0xfc/0x1f4
    [<06dd06e0>] ret_fast_syscall+0x0/0x48
    [<a8308cb3>] 0xbeb4daa8

This is because that since the commit 2b0d3d3e4fcf ("percpu_ref: reduce
memory footprint of percpu_ref in fast path") root_cgrp->bpf.refcnt.data
is allocated by the function percpu_ref_init in cgroup_bpf_inherit which
is called by cgroup_setup_root when mounting, but not freed along with
root_cgrp when umounting. Adding cgroup_bpf_offline which calls
percpu_ref_kill to cgroup_kill_sb can free root_cgrp->bpf.refcnt.data in
umount path.

This patch also fixes the commit 4bfc0bb2c60e ("bpf: decouple the lifetime
of cgroup_bpf from cgroup itself"). A cgroup_bpf_offline is needed to do a
cleanup that frees the resources which are allocated by cgroup_bpf_inherit
in cgroup_setup_root.

And inside cgroup_bpf_offline, cgroup_get() is at the beginning and
cgroup_put is at the end of cgroup_bpf_release which is called by
cgroup_bpf_offline. So cgroup_bpf_offline can keep the balance of
cgroup's refcount.

Fixes: 2b0d3d3e4fcf ("percpu_ref: reduce memory footprint of percpu_ref in fast path")
Fixes: 4bfc0bb2c60e ("bpf: decouple the lifetime of cgroup_bpf from cgroup itself")
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20211018075623.26884-1-quanyang.wang@windriver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/cgroup/cgroup.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index c8b811e039cc2..60d38e2f69dd8 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2147,8 +2147,10 @@ static void cgroup_kill_sb(struct super_block *sb)
 	 * And don't kill the default root.
 	 */
 	if (list_empty(&root->cgrp.self.children) && root != &cgrp_dfl_root &&
-	    !percpu_ref_is_dying(&root->cgrp.self.refcnt))
+	    !percpu_ref_is_dying(&root->cgrp.self.refcnt)) {
+		cgroup_bpf_offline(&root->cgrp);
 		percpu_ref_kill(&root->cgrp.self.refcnt);
+	}
 	cgroup_put(&root->cgrp);
 	kernfs_kill_sb(sb);
 }
-- 
GitLab


From cac6b043cea3e120f4fccec16f7381747cbfdc0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= <bjorn@kernel.org>
Date: Thu, 28 Oct 2021 14:51:15 +0200
Subject: [PATCH 0559/4878] riscv, bpf: Fix potential NULL dereference
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 27de809a3d83a6199664479ebb19712533d6fd9b upstream.

The bpf_jit_binary_free() function requires a non-NULL argument. When
the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps,
jit_data->header will be NULL, which triggers a NULL
dereference. Avoid this by checking the argument, prior calling the
function.

Fixes: ca6cb5447cec ("riscv, bpf: Factor common RISC-V JIT code")
Signed-off-by: Björn Töpel <bjorn@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20211028125115.514587-1-bjorn@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/net/bpf_jit_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/net/bpf_jit_core.c b/arch/riscv/net/bpf_jit_core.c
index 3630d447352c6..cbf7d2414886e 100644
--- a/arch/riscv/net/bpf_jit_core.c
+++ b/arch/riscv/net/bpf_jit_core.c
@@ -125,7 +125,8 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
 
 	if (i == NR_JIT_ITERATIONS) {
 		pr_err("bpf-jit: image did not converge in <%d passes!\n", i);
-		bpf_jit_binary_free(jit_data->header);
+		if (jit_data->header)
+			bpf_jit_binary_free(jit_data->header);
 		prog = orig_prog;
 		goto out_offset;
 	}
-- 
GitLab


From 15dec6d8f8642a26d6a272af2d7f9877df8f02b8 Mon Sep 17 00:00:00 2001
From: Liu Jian <liujian56@huawei.com>
Date: Tue, 12 Oct 2021 13:20:19 +0800
Subject: [PATCH 0560/4878] tcp_bpf: Fix one concurrency problem in the
 tcp_bpf_send_verdict function

commit cd9733f5d75c94a32544d6ce5be47e14194cf137 upstream.

With two Msgs, msgA and msgB and a user doing nonblocking sendmsg calls (or
multiple cores) on a single socket 'sk' we could get the following flow.

 msgA, sk                               msgB, sk
 -----------                            ---------------
 tcp_bpf_sendmsg()
 lock(sk)
 psock = sk->psock
                                        tcp_bpf_sendmsg()
                                        lock(sk) ... blocking
tcp_bpf_send_verdict
if (psock->eval == NONE)
   psock->eval = sk_psock_msg_verdict
 ..
 < handle SK_REDIRECT case >
   release_sock(sk)                     < lock dropped so grab here >
   ret = tcp_bpf_sendmsg_redir
                                        psock = sk->psock
                                        tcp_bpf_send_verdict
 lock_sock(sk) ... blocking on B
                                        if (psock->eval == NONE) <- boom.
                                         psock->eval will have msgA state

The problem here is we dropped the lock on msgA and grabbed it with msgB.
Now we have old state in psock and importantly psock->eval has not been
cleared. So msgB will run whatever action was done on A and the verdict
program may never see it.

Fixes: 604326b41a6fb ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20211012052019.184398-1-liujian56@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/tcp_bpf.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index f91ae827d47f5..9194070c67250 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -317,6 +317,7 @@ static int tcp_bpf_send_verdict(struct sock *sk, struct sk_psock *psock,
 	bool cork = false, enospc = sk_msg_full(msg);
 	struct sock *sk_redir;
 	u32 tosend, delta = 0;
+	u32 eval = __SK_NONE;
 	int ret;
 
 more_data:
@@ -360,13 +361,24 @@ more_data:
 	case __SK_REDIRECT:
 		sk_redir = psock->sk_redir;
 		sk_msg_apply_bytes(psock, tosend);
+		if (!psock->apply_bytes) {
+			/* Clean up before releasing the sock lock. */
+			eval = psock->eval;
+			psock->eval = __SK_NONE;
+			psock->sk_redir = NULL;
+		}
 		if (psock->cork) {
 			cork = true;
 			psock->cork = NULL;
 		}
 		sk_msg_return(sk, msg, tosend);
 		release_sock(sk);
+
 		ret = tcp_bpf_sendmsg_redir(sk_redir, msg, tosend, flags);
+
+		if (eval == __SK_REDIRECT)
+			sock_put(sk_redir);
+
 		lock_sock(sk);
 		if (unlikely(ret < 0)) {
 			int free = sk_msg_free_nocharge(sk, msg);
-- 
GitLab


From dd2260ec643d309d8c58ceac3aa77f80db765488 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
Date: Tue, 26 Oct 2021 13:00:19 +0200
Subject: [PATCH 0561/4878] bpf: Fix potential race in tail call compatibility
 check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 54713c85f536048e685258f880bf298a74c3620d upstream.

Lorenzo noticed that the code testing for program type compatibility of
tail call maps is potentially racy in that two threads could encounter a
map with an unset type simultaneously and both return true even though they
are inserting incompatible programs.

The race window is quite small, but artificially enlarging it by adding a
usleep_range() inside the check in bpf_prog_array_compatible() makes it
trivial to trigger from userspace with a program that does, essentially:

        map_fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, 4, 4, 2, 0);
        pid = fork();
        if (pid) {
                key = 0;
                value = xdp_fd;
        } else {
                key = 1;
                value = tc_fd;
        }
        err = bpf_map_update_elem(map_fd, &key, &value, 0);

While the race window is small, it has potentially serious ramifications in
that triggering it would allow a BPF program to tail call to a program of a
different type. So let's get rid of it by protecting the update with a
spinlock. The commit in the Fixes tag is the last commit that touches the
code in question.

v2:
- Use a spinlock instead of an atomic variable and cmpxchg() (Alexei)
v3:
- Put lock and the members it protects into an embedded 'owner' struct (Daniel)

Fixes: 3324b584b6f6 ("ebpf: misc core cleanup")
Reported-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211026110019.363464-1-toke@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/bpf.h   |  7 +++++--
 kernel/bpf/arraymap.c |  1 +
 kernel/bpf/core.c     | 20 +++++++++++++-------
 kernel/bpf/syscall.c  |  6 ++++--
 4 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 0caa448f7b409..1f62a4eec283c 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -862,8 +862,11 @@ struct bpf_array_aux {
 	 * stored in the map to make sure that all callers and callees have
 	 * the same prog type and JITed flag.
 	 */
-	enum bpf_prog_type type;
-	bool jited;
+	struct {
+		spinlock_t lock;
+		enum bpf_prog_type type;
+		bool jited;
+	} owner;
 	/* Programs with direct jumps into programs part of this array. */
 	struct list_head poke_progs;
 	struct bpf_map *map;
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index c6c81eceb68fb..36c68dcea2369 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -1025,6 +1025,7 @@ static struct bpf_map *prog_array_map_alloc(union bpf_attr *attr)
 	INIT_WORK(&aux->work, prog_array_map_clear_deferred);
 	INIT_LIST_HEAD(&aux->poke_progs);
 	mutex_init(&aux->poke_mutex);
+	spin_lock_init(&aux->owner.lock);
 
 	map = array_map_alloc(attr);
 	if (IS_ERR(map)) {
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 2e4a658d65d6e..72e4bf0ee5460 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -1775,20 +1775,26 @@ static unsigned int __bpf_prog_ret0_warn(const void *ctx,
 bool bpf_prog_array_compatible(struct bpf_array *array,
 			       const struct bpf_prog *fp)
 {
+	bool ret;
+
 	if (fp->kprobe_override)
 		return false;
 
-	if (!array->aux->type) {
+	spin_lock(&array->aux->owner.lock);
+
+	if (!array->aux->owner.type) {
 		/* There's no owner yet where we could check for
 		 * compatibility.
 		 */
-		array->aux->type  = fp->type;
-		array->aux->jited = fp->jited;
-		return true;
+		array->aux->owner.type  = fp->type;
+		array->aux->owner.jited = fp->jited;
+		ret = true;
+	} else {
+		ret = array->aux->owner.type  == fp->type &&
+		      array->aux->owner.jited == fp->jited;
 	}
-
-	return array->aux->type  == fp->type &&
-	       array->aux->jited == fp->jited;
+	spin_unlock(&array->aux->owner.lock);
+	return ret;
 }
 
 static int bpf_check_tail_call(const struct bpf_prog *fp)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 9433ab9995cd7..9cae74a75d6cf 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -535,8 +535,10 @@ static void bpf_map_show_fdinfo(struct seq_file *m, struct file *filp)
 
 	if (map->map_type == BPF_MAP_TYPE_PROG_ARRAY) {
 		array = container_of(map, struct bpf_array, map);
-		type  = array->aux->type;
-		jited = array->aux->jited;
+		spin_lock(&array->aux->owner.lock);
+		type  = array->aux->owner.type;
+		jited = array->aux->owner.jited;
+		spin_unlock(&array->aux->owner.lock);
 	}
 
 	seq_printf(m,
-- 
GitLab


From ee4908f909b3761ded2e32c79a6ea5ed20e1fdc6 Mon Sep 17 00:00:00 2001
From: Xu Kuohai <xukuohai@huawei.com>
Date: Tue, 19 Oct 2021 03:29:34 +0000
Subject: [PATCH 0562/4878] bpf: Fix error usage of map_fd and fdget() in
 generic_map_update_batch()

commit fda7a38714f40b635f5502ec4855602c6b33dad2 upstream.

1. The ufd in generic_map_update_batch() should be read from batch.map_fd;
2. A call to fdget() should be followed by a symmetric call to fdput().

Fixes: aa2e93b8e58e ("bpf: Add generic support for update and delete batch ops")
Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211019032934.1210517-1-xukuohai@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/syscall.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 9cae74a75d6cf..5b6da64da46d7 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -1309,12 +1309,11 @@ int generic_map_update_batch(struct bpf_map *map,
 	void __user *values = u64_to_user_ptr(attr->batch.values);
 	void __user *keys = u64_to_user_ptr(attr->batch.keys);
 	u32 value_size, cp, max_count;
-	int ufd = attr->map_fd;
+	int ufd = attr->batch.map_fd;
 	void *key, *value;
 	struct fd f;
 	int err = 0;
 
-	f = fdget(ufd);
 	if (attr->batch.elem_flags & ~BPF_F_LOCK)
 		return -EINVAL;
 
@@ -1339,6 +1338,7 @@ int generic_map_update_batch(struct bpf_map *map,
 		return -ENOMEM;
 	}
 
+	f = fdget(ufd); /* bpf_map_do_batch() guarantees ufd is valid */
 	for (cp = 0; cp < max_count; cp++) {
 		err = -EFAULT;
 		if (copy_from_user(key, keys + cp * map->key_size,
@@ -1358,6 +1358,7 @@ int generic_map_update_batch(struct bpf_map *map,
 
 	kfree(value);
 	kfree(key);
+	fdput(f);
 	return err;
 }
 
-- 
GitLab


From c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Tue, 12 Oct 2021 13:55:19 -0400
Subject: [PATCH 0563/4878] IB/qib: Protect from buffer overflow in struct
 qib_user_sdma_pkt fields

commit d39bf40e55e666b5905fdbd46a0dced030ce87be upstream.

Overflowing either addrlimit or bytes_togo can allow userspace to trigger
a buffer overflow of kernel memory. Check for overflows in all the places
doing math on user controlled buffers.

Fixes: f931551bafe1 ("IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters")
Link: https://lore.kernel.org/r/20211012175519.7298.77738.stgit@awfm-01.cornelisnetworks.com
Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/qib/qib_user_sdma.c | 33 ++++++++++++++++-------
 1 file changed, 23 insertions(+), 10 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index a67599b5a550a..ac11943a5ddb0 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -602,7 +602,7 @@ done:
 /*
  * How many pages in this iovec element?
  */
-static int qib_user_sdma_num_pages(const struct iovec *iov)
+static size_t qib_user_sdma_num_pages(const struct iovec *iov)
 {
 	const unsigned long addr  = (unsigned long) iov->iov_base;
 	const unsigned long  len  = iov->iov_len;
@@ -658,7 +658,7 @@ static void qib_user_sdma_free_pkt_frag(struct device *dev,
 static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
 				   struct qib_user_sdma_queue *pq,
 				   struct qib_user_sdma_pkt *pkt,
-				   unsigned long addr, int tlen, int npages)
+				   unsigned long addr, int tlen, size_t npages)
 {
 	struct page *pages[8];
 	int i, j;
@@ -722,7 +722,7 @@ static int qib_user_sdma_pin_pkt(const struct qib_devdata *dd,
 	unsigned long idx;
 
 	for (idx = 0; idx < niov; idx++) {
-		const int npages = qib_user_sdma_num_pages(iov + idx);
+		const size_t npages = qib_user_sdma_num_pages(iov + idx);
 		const unsigned long addr = (unsigned long) iov[idx].iov_base;
 
 		ret = qib_user_sdma_pin_pages(dd, pq, pkt, addr,
@@ -824,8 +824,8 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
 		unsigned pktnw;
 		unsigned pktnwc;
 		int nfrags = 0;
-		int npages = 0;
-		int bytes_togo = 0;
+		size_t npages = 0;
+		size_t bytes_togo = 0;
 		int tiddma = 0;
 		int cfur;
 
@@ -885,7 +885,11 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
 
 			npages += qib_user_sdma_num_pages(&iov[idx]);
 
-			bytes_togo += slen;
+			if (check_add_overflow(bytes_togo, slen, &bytes_togo) ||
+			    bytes_togo > type_max(typeof(pkt->bytes_togo))) {
+				ret = -EINVAL;
+				goto free_pbc;
+			}
 			pktnwc += slen >> 2;
 			idx++;
 			nfrags++;
@@ -904,8 +908,7 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
 		}
 
 		if (frag_size) {
-			int tidsmsize, n;
-			size_t pktsize;
+			size_t tidsmsize, n, pktsize, sz, addrlimit;
 
 			n = npages*((2*PAGE_SIZE/frag_size)+1);
 			pktsize = struct_size(pkt, addr, n);
@@ -923,14 +926,24 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
 			else
 				tidsmsize = 0;
 
-			pkt = kmalloc(pktsize+tidsmsize, GFP_KERNEL);
+			if (check_add_overflow(pktsize, tidsmsize, &sz)) {
+				ret = -EINVAL;
+				goto free_pbc;
+			}
+			pkt = kmalloc(sz, GFP_KERNEL);
 			if (!pkt) {
 				ret = -ENOMEM;
 				goto free_pbc;
 			}
 			pkt->largepkt = 1;
 			pkt->frag_size = frag_size;
-			pkt->addrlimit = n + ARRAY_SIZE(pkt->addr);
+			if (check_add_overflow(n, ARRAY_SIZE(pkt->addr),
+					       &addrlimit) ||
+			    addrlimit > type_max(typeof(pkt->addrlimit))) {
+				ret = -EINVAL;
+				goto free_pbc;
+			}
+			pkt->addrlimit = addrlimit;
 
 			if (tiddma) {
 				char *tidsm = (char *)pkt + pktsize;
-- 
GitLab


From d98883f6c33e0d960afedcecaa92fc2b61fec383 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Wed, 13 Oct 2021 10:18:52 -0400
Subject: [PATCH 0564/4878] IB/hfi1: Fix abba locking issue with sc_disable()

commit 13bac861952a78664907a0f927d3e874e9a59034 upstream.

sc_disable() after having disabled the send context wakes up any waiters
by calling hfi1_qp_wakeup() while holding the waitlock for the sc.

This is contrary to the model for all other calls to hfi1_qp_wakeup()
where the waitlock is dropped and a local is used to drive calls to
hfi1_qp_wakeup().

Fix by moving the sc->piowait into a local list and driving the wakeup
calls from the list.

Fixes: 099a884ba4c0 ("IB/hfi1: Handle wakeup of orphaned QPs for pio")
Link: https://lore.kernel.org/r/20211013141852.128104.2682.stgit@awfm-01.cornelisnetworks.com
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hfi1/pio.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c
index ff864f6f02667..1cd8f80f097a7 100644
--- a/drivers/infiniband/hw/hfi1/pio.c
+++ b/drivers/infiniband/hw/hfi1/pio.c
@@ -920,6 +920,7 @@ void sc_disable(struct send_context *sc)
 {
 	u64 reg;
 	struct pio_buf *pbuf;
+	LIST_HEAD(wake_list);
 
 	if (!sc)
 		return;
@@ -954,19 +955,21 @@ void sc_disable(struct send_context *sc)
 	spin_unlock(&sc->release_lock);
 
 	write_seqlock(&sc->waitlock);
-	while (!list_empty(&sc->piowait)) {
+	if (!list_empty(&sc->piowait))
+		list_move(&sc->piowait, &wake_list);
+	write_sequnlock(&sc->waitlock);
+	while (!list_empty(&wake_list)) {
 		struct iowait *wait;
 		struct rvt_qp *qp;
 		struct hfi1_qp_priv *priv;
 
-		wait = list_first_entry(&sc->piowait, struct iowait, list);
+		wait = list_first_entry(&wake_list, struct iowait, list);
 		qp = iowait_to_qp(wait);
 		priv = qp->priv;
 		list_del_init(&priv->s_iowait.list);
 		priv->s_iowait.lock = NULL;
 		hfi1_qp_wakeup(qp, RVT_S_WAIT_PIO | HFI1_S_WAIT_PIO_DRAIN);
 	}
-	write_sequnlock(&sc->waitlock);
 
 	spin_unlock_irq(&sc->alloc_lock);
 }
-- 
GitLab


From 4286c72c5321666b58438e73229ba39e56461bd7 Mon Sep 17 00:00:00 2001
From: Varun Prakash <varun@chelsio.com>
Date: Mon, 25 Oct 2021 22:46:54 +0530
Subject: [PATCH 0565/4878] nvmet-tcp: fix data digest pointer calculation

commit e790de54e94a7a15fb725b34724d41d41cbaa60c upstream.

exp_ddgst is of type __le32, &cmd->exp_ddgst + cmd->offset increases
&cmd->exp_ddgst by 4 * cmd->offset, fix this by type casting
&cmd->exp_ddgst to u8 *.

Fixes: 872d26a391da ("nvmet-tcp: add NVMe over TCP target driver")
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/target/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index dedcb7aaf0d82..5266d534c4b31 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -690,7 +690,7 @@ static int nvmet_try_send_ddgst(struct nvmet_tcp_cmd *cmd, bool last_in_batch)
 	struct nvmet_tcp_queue *queue = cmd->queue;
 	struct msghdr msg = { .msg_flags = MSG_DONTWAIT };
 	struct kvec iov = {
-		.iov_base = &cmd->exp_ddgst + cmd->offset,
+		.iov_base = (u8 *)&cmd->exp_ddgst + cmd->offset,
 		.iov_len = NVME_TCP_DIGEST_LENGTH - cmd->offset
 	};
 	int ret;
-- 
GitLab


From 32f3db20f1261273b3a7ebcd437722c4ca9bff60 Mon Sep 17 00:00:00 2001
From: Varun Prakash <varun@chelsio.com>
Date: Mon, 25 Oct 2021 22:47:30 +0530
Subject: [PATCH 0566/4878] nvme-tcp: fix data digest pointer calculation

commit d89b9f3bbb58e9e378881209756b0723694f22ff upstream.

ddgst is of type __le32, &req->ddgst + req->offset
increases &req->ddgst by 4 * req->offset, fix this by
type casting &req->ddgst to u8 *.

Fixes: 3f2304f8c6d6 ("nvme-tcp: add NVMe over TCP host driver")
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index f3a7b6c1bdfa3..afef377424c44 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1040,7 +1040,7 @@ static int nvme_tcp_try_send_ddgst(struct nvme_tcp_request *req)
 	int ret;
 	struct msghdr msg = { .msg_flags = MSG_DONTWAIT };
 	struct kvec iov = {
-		.iov_base = &req->ddgst + req->offset,
+		.iov_base = (u8 *)&req->ddgst + req->offset,
 		.iov_len = NVME_TCP_DIGEST_LENGTH - req->offset
 	};
 
-- 
GitLab


From c63d7f2ca99a2e2a9b62d42bffa0ccec407b91b0 Mon Sep 17 00:00:00 2001
From: Varun Prakash <varun@chelsio.com>
Date: Tue, 26 Oct 2021 19:01:55 +0530
Subject: [PATCH 0567/4878] nvme-tcp: fix possible req->offset corruption

commit ce7723e9cdae4eb3030da082876580f4b2dc0861 upstream.

With commit db5ad6b7f8cd ("nvme-tcp: try to send request in queue_rq
context") r2t and response PDU can get processed while send function
is executing.

Current data digest send code uses req->offset after kernel_sendmsg(),
this creates a race condition where req->offset gets reset before it
is used in send function.

This can happen in two cases -
1. Target sends r2t PDU which resets req->offset.
2. Target send response PDU which completes the req and then req is
   used for a new command, nvme_tcp_setup_cmd_pdu() resets req->offset.

Fix this by storing req->offset in a local variable and using
this local variable after kernel_sendmsg().

Fixes: db5ad6b7f8cd ("nvme-tcp: try to send request in queue_rq context")
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/tcp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index afef377424c44..e99d439894187 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1037,6 +1037,7 @@ static int nvme_tcp_try_send_data_pdu(struct nvme_tcp_request *req)
 static int nvme_tcp_try_send_ddgst(struct nvme_tcp_request *req)
 {
 	struct nvme_tcp_queue *queue = req->queue;
+	size_t offset = req->offset;
 	int ret;
 	struct msghdr msg = { .msg_flags = MSG_DONTWAIT };
 	struct kvec iov = {
@@ -1053,7 +1054,7 @@ static int nvme_tcp_try_send_ddgst(struct nvme_tcp_request *req)
 	if (unlikely(ret <= 0))
 		return ret;
 
-	if (req->offset + ret == NVME_TCP_DIGEST_LENGTH) {
+	if (offset + ret == NVME_TCP_DIGEST_LENGTH) {
 		nvme_tcp_done_send_req(queue);
 		return 1;
 	}
-- 
GitLab


From 24fd8e2f027dc8d4cfaa5b1ec9b83278df22f8dc Mon Sep 17 00:00:00 2001
From: Rakesh Babu <rsaladi2@marvell.com>
Date: Wed, 27 Oct 2021 23:02:33 +0530
Subject: [PATCH 0568/4878] octeontx2-af: Display all enabled PF VF rsrc_alloc
 entries.

commit e77bcdd1f639809950c45234b08647ac6d3ffe7b upstream.

Currently, we are using a fixed buffer size of length 2048 to display
rsrc_alloc output. As a result a maximum of 2048 characters of
rsrc_alloc output is displayed, which may lead sometimes to display only
partial output. This patch fixes this dependency on max limit of buffer
size and displays all PF VF entries.

Each column of the debugfs entry "rsrc_alloc" uses a fixed width of 12
characters to print the list of LFs of each block for a PF/VF. If the
length of list of LFs of a block exceeds this fixed width then the list
gets truncated and displays only a part of the list. This patch fixes
this by using the maximum possible length of list of LFs among all
blocks of all PFs and VFs entries as the width size.

Fixes: f7884097141b ("octeontx2-af: Formatting debugfs entry rsrc_alloc.")
Fixes: 23205e6d06d4 ("octeontx2-af: Dump current resource provisioning status")
Signed-off-by: Rakesh Babu <rsaladi2@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../marvell/octeontx2/af/rvu_debugfs.c        | 138 ++++++++++++++----
 1 file changed, 106 insertions(+), 32 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index bc870bff14df7..5205796859f6c 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -139,18 +139,85 @@ static const struct file_operations rvu_dbg_##name##_fops = { \
 
 static void print_nix_qsize(struct seq_file *filp, struct rvu_pfvf *pfvf);
 
+static void get_lf_str_list(struct rvu_block block, int pcifunc,
+			    char *lfs)
+{
+	int lf = 0, seq = 0, len = 0, prev_lf = block.lf.max;
+
+	for_each_set_bit(lf, block.lf.bmap, block.lf.max) {
+		if (lf >= block.lf.max)
+			break;
+
+		if (block.fn_map[lf] != pcifunc)
+			continue;
+
+		if (lf == prev_lf + 1) {
+			prev_lf = lf;
+			seq = 1;
+			continue;
+		}
+
+		if (seq)
+			len += sprintf(lfs + len, "-%d,%d", prev_lf, lf);
+		else
+			len += (len ? sprintf(lfs + len, ",%d", lf) :
+				      sprintf(lfs + len, "%d", lf));
+
+		prev_lf = lf;
+		seq = 0;
+	}
+
+	if (seq)
+		len += sprintf(lfs + len, "-%d", prev_lf);
+
+	lfs[len] = '\0';
+}
+
+static int get_max_column_width(struct rvu *rvu)
+{
+	int index, pf, vf, lf_str_size = 12, buf_size = 256;
+	struct rvu_block block;
+	u16 pcifunc;
+	char *buf;
+
+	buf = kzalloc(buf_size, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
+		for (vf = 0; vf <= rvu->hw->total_vfs; vf++) {
+			pcifunc = pf << 10 | vf;
+			if (!pcifunc)
+				continue;
+
+			for (index = 0; index < BLK_COUNT; index++) {
+				block = rvu->hw->block[index];
+				if (!strlen(block.name))
+					continue;
+
+				get_lf_str_list(block, pcifunc, buf);
+				if (lf_str_size <= strlen(buf))
+					lf_str_size = strlen(buf) + 1;
+			}
+		}
+	}
+
+	kfree(buf);
+	return lf_str_size;
+}
+
 /* Dumps current provisioning status of all RVU block LFs */
 static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 					  char __user *buffer,
 					  size_t count, loff_t *ppos)
 {
-	int index, off = 0, flag = 0, go_back = 0, len = 0;
+	int index, off = 0, flag = 0, len = 0, i = 0;
 	struct rvu *rvu = filp->private_data;
-	int lf, pf, vf, pcifunc;
+	int bytes_not_copied = 0;
 	struct rvu_block block;
-	int bytes_not_copied;
-	int lf_str_size = 12;
+	int pf, vf, pcifunc;
 	int buf_size = 2048;
+	int lf_str_size;
 	char *lfs;
 	char *buf;
 
@@ -162,6 +229,9 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 	if (!buf)
 		return -ENOSPC;
 
+	/* Get the maximum width of a column */
+	lf_str_size = get_max_column_width(rvu);
+
 	lfs = kzalloc(lf_str_size, GFP_KERNEL);
 	if (!lfs) {
 		kfree(buf);
@@ -175,65 +245,69 @@ static ssize_t rvu_dbg_rsrc_attach_status(struct file *filp,
 					 "%-*s", lf_str_size,
 					 rvu->hw->block[index].name);
 		}
+
 	off += scnprintf(&buf[off], buf_size - 1 - off, "\n");
+	bytes_not_copied = copy_to_user(buffer + (i * off), buf, off);
+	if (bytes_not_copied)
+		goto out;
+
+	i++;
+	*ppos += off;
 	for (pf = 0; pf < rvu->hw->total_pfs; pf++) {
 		for (vf = 0; vf <= rvu->hw->total_vfs; vf++) {
+			off = 0;
+			flag = 0;
 			pcifunc = pf << 10 | vf;
 			if (!pcifunc)
 				continue;
 
 			if (vf) {
 				sprintf(lfs, "PF%d:VF%d", pf, vf - 1);
-				go_back = scnprintf(&buf[off],
-						    buf_size - 1 - off,
-						    "%-*s", lf_str_size, lfs);
+				off = scnprintf(&buf[off],
+						buf_size - 1 - off,
+						"%-*s", lf_str_size, lfs);
 			} else {
 				sprintf(lfs, "PF%d", pf);
-				go_back = scnprintf(&buf[off],
-						    buf_size - 1 - off,
-						    "%-*s", lf_str_size, lfs);
+				off = scnprintf(&buf[off],
+						buf_size - 1 - off,
+						"%-*s", lf_str_size, lfs);
 			}
 
-			off += go_back;
-			for (index = 0; index < BLKTYPE_MAX; index++) {
+			for (index = 0; index < BLK_COUNT; index++) {
 				block = rvu->hw->block[index];
 				if (!strlen(block.name))
 					continue;
 				len = 0;
 				lfs[len] = '\0';
-				for (lf = 0; lf < block.lf.max; lf++) {
-					if (block.fn_map[lf] != pcifunc)
-						continue;
+				get_lf_str_list(block, pcifunc, lfs);
+				if (strlen(lfs))
 					flag = 1;
-					len += sprintf(&lfs[len], "%d,", lf);
-				}
 
-				if (flag)
-					len--;
-				lfs[len] = '\0';
 				off += scnprintf(&buf[off], buf_size - 1 - off,
 						 "%-*s", lf_str_size, lfs);
-				if (!strlen(lfs))
-					go_back += lf_str_size;
 			}
-			if (!flag)
-				off -= go_back;
-			else
-				flag = 0;
-			off--;
-			off +=	scnprintf(&buf[off], buf_size - 1 - off, "\n");
+			if (flag) {
+				off +=	scnprintf(&buf[off],
+						  buf_size - 1 - off, "\n");
+				bytes_not_copied = copy_to_user(buffer +
+								(i * off),
+								buf, off);
+				if (bytes_not_copied)
+					goto out;
+
+				i++;
+				*ppos += off;
+			}
 		}
 	}
 
-	bytes_not_copied = copy_to_user(buffer, buf, off);
+out:
 	kfree(lfs);
 	kfree(buf);
-
 	if (bytes_not_copied)
 		return -EFAULT;
 
-	*ppos = off;
-	return off;
+	return *ppos;
 }
 
 RVU_DEBUG_FOPS(rsrc_status, rsrc_attach_status, NULL);
-- 
GitLab


From 10e40fb2f508f3b6af07c9bdc03595d3309d0e16 Mon Sep 17 00:00:00 2001
From: Patrisious Haddad <phaddad@nvidia.com>
Date: Wed, 6 Oct 2021 12:31:53 +0300
Subject: [PATCH 0569/4878] RDMA/mlx5: Set user priority for DCT

commit 1ab52ac1e9bc9391f592c9fa8340a6e3e9c36286 upstream.

Currently, the driver doesn't set the PCP-based priority for DCT, hence
DCT response packets are transmitted without user priority.

Fix it by setting user provided priority in the eth_prio field in the DCT
context, which in turn sets the value in the transmitted packet.

Fixes: 776a3906b692 ("IB/mlx5: Add support for DC target QP")
Link: https://lore.kernel.org/r/5fd2d94a13f5742d8803c218927322257d53205c.1633512672.git.leonro@nvidia.com
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/mlx5/qp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 011477356a1de..7a2bec0ac0055 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -4216,6 +4216,8 @@ static int mlx5_ib_modify_dct(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 		MLX5_SET(dctc, dctc, mtu, attr->path_mtu);
 		MLX5_SET(dctc, dctc, my_addr_index, attr->ah_attr.grh.sgid_index);
 		MLX5_SET(dctc, dctc, hop_limit, attr->ah_attr.grh.hop_limit);
+		if (attr->ah_attr.type == RDMA_AH_ATTR_TYPE_ROCE)
+			MLX5_SET(dctc, dctc, eth_prio, attr->ah_attr.sl & 0x7);
 
 		err = mlx5_core_create_dct(dev, &qp->dct.mdct, qp->dct.in,
 					   MLX5_ST_SZ_BYTES(create_dct_in), out,
-- 
GitLab


From 2cf7d935d6ba3fdae254ad6585fe74464de270f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <u@pkh.me>
Date: Sun, 5 Sep 2021 02:20:27 +0200
Subject: [PATCH 0570/4878] arm64: dts: allwinner: h5: NanoPI Neo 2: Fix
 ethernet node
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 0764e365dacd0b8f75c1736f9236be280649bd18 upstream.

RX and TX delay are provided by ethernet PHY. Reflect that in ethernet
node.

Fixes: 44a94c7ef989 ("arm64: dts: allwinner: H5: Restore EMAC changes")
Signed-off-by: Clément Bœsch <u@pkh.me>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210905002027.171984-1-u@pkh.me
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts
index b059e20813bdf..e8ab8c2df51a0 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-nanopi-neo2.dts
@@ -75,7 +75,7 @@
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_gmac_3v3>;
 	phy-handle = <&ext_rgmii_phy>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 
-- 
GitLab


From e51371bd687e7ff4a2f5f53d97d4388500fb27e1 Mon Sep 17 00:00:00 2001
From: Jim Quinlan <jim2101024@gmail.com>
Date: Tue, 14 Sep 2021 15:11:21 -0700
Subject: [PATCH 0571/4878] reset: brcmstb-rescal: fix incorrect polarity of
 status bit

commit f33eb7f29c16ba78db3221ee02346fd832274cdd upstream.

The readl_poll_timeout() should complete when the status bit
is a 1, not 0.

Fixes: 4cf176e52397 ("reset: Add Broadcom STB RESCAL reset controller")
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210914221122.62315-1-f.fainelli@gmail.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/reset/reset-brcmstb-rescal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/reset/reset-brcmstb-rescal.c b/drivers/reset/reset-brcmstb-rescal.c
index b6f074d6a65f8..433fa0c40e477 100644
--- a/drivers/reset/reset-brcmstb-rescal.c
+++ b/drivers/reset/reset-brcmstb-rescal.c
@@ -38,7 +38,7 @@ static int brcm_rescal_reset_set(struct reset_controller_dev *rcdev,
 	}
 
 	ret = readl_poll_timeout(base + BRCM_RESCAL_STATUS, reg,
-				 !(reg & BRCM_RESCAL_STATUS_BIT), 100, 1000);
+				 (reg & BRCM_RESCAL_STATUS_BIT), 100, 1000);
 	if (ret) {
 		dev_err(data->dev, "time out on SATA/PCIe rescal\n");
 		return ret;
-- 
GitLab


From 36e911a16b377bde0ad91a8c679069d0d310b1a6 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Tue, 12 Oct 2021 10:37:35 +0800
Subject: [PATCH 0572/4878] regmap: Fix possible double-free in
 regcache_rbtree_exit()

commit 55e6d8037805b3400096d621091dfbf713f97e83 upstream.

In regcache_rbtree_insert_to_block(), when 'present' realloc failed,
the 'blk' which is supposed to assign to 'rbnode->block' will be freed,
so 'rbnode->block' points a freed memory, in the error handling path of
regcache_rbtree_init(), 'rbnode->block' will be freed again in
regcache_rbtree_exit(), KASAN will report double-free as follows:

BUG: KASAN: double-free or invalid-free in kfree+0xce/0x390
Call Trace:
 slab_free_freelist_hook+0x10d/0x240
 kfree+0xce/0x390
 regcache_rbtree_exit+0x15d/0x1a0
 regcache_rbtree_init+0x224/0x2c0
 regcache_init+0x88d/0x1310
 __regmap_init+0x3151/0x4a80
 __devm_regmap_init+0x7d/0x100
 madera_spi_probe+0x10f/0x333 [madera_spi]
 spi_probe+0x183/0x210
 really_probe+0x285/0xc30

To fix this, moving up the assignment of rbnode->block to immediately after
the reallocation has succeeded so that the data structure stays valid even
if the second reallocation fails.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 3f4ff561bc88b ("regmap: rbtree: Make cache_present bitmap per node")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211012023735.1632786-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/regmap/regcache-rbtree.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c
index cfa29dc89bbff..fabf87058d80b 100644
--- a/drivers/base/regmap/regcache-rbtree.c
+++ b/drivers/base/regmap/regcache-rbtree.c
@@ -281,14 +281,14 @@ static int regcache_rbtree_insert_to_block(struct regmap *map,
 	if (!blk)
 		return -ENOMEM;
 
+	rbnode->block = blk;
+
 	if (BITS_TO_LONGS(blklen) > BITS_TO_LONGS(rbnode->blklen)) {
 		present = krealloc(rbnode->cache_present,
 				   BITS_TO_LONGS(blklen) * sizeof(*present),
 				   GFP_KERNEL);
-		if (!present) {
-			kfree(blk);
+		if (!present)
 			return -ENOMEM;
-		}
 
 		memset(present + BITS_TO_LONGS(rbnode->blklen), 0,
 		       (BITS_TO_LONGS(blklen) - BITS_TO_LONGS(rbnode->blklen))
@@ -305,7 +305,6 @@ static int regcache_rbtree_insert_to_block(struct regmap *map,
 	}
 
 	/* update the rbnode block, its size and the base register */
-	rbnode->block = blk;
 	rbnode->blklen = blklen;
 	rbnode->base_reg = base_reg;
 	rbnode->cache_present = present;
-- 
GitLab


From b0a2cd38553c77928ef1646ed1518486b1e70ae8 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Sun, 24 Oct 2021 16:13:56 +0300
Subject: [PATCH 0573/4878] net: batman-adv: fix error handling

commit 6f68cd634856f8ca93bafd623ba5357e0f648c68 upstream.

Syzbot reported ODEBUG warning in batadv_nc_mesh_free(). The problem was
in wrong error handling in batadv_mesh_init().

Before this patch batadv_mesh_init() was calling batadv_mesh_free() in case
of any batadv_*_init() calls failure. This approach may work well, when
there is some kind of indicator, which can tell which parts of batadv are
initialized; but there isn't any.

All written above lead to cleaning up uninitialized fields. Even if we hide
ODEBUG warning by initializing bat_priv->nc.work, syzbot was able to hit
GPF in batadv_nc_purge_paths(), because hash pointer in still NULL. [1]

To fix these bugs we can unwind batadv_*_init() calls one by one.
It is good approach for 2 reasons: 1) It fixes bugs on error handling
path 2) It improves the performance, since we won't call unneeded
batadv_*_free() functions.

So, this patch makes all batadv_*_init() clean up all allocated memory
before returning with an error to no call correspoing batadv_*_free()
and open-codes batadv_mesh_free() with proper order to avoid touching
uninitialized fields.

Link: https://lore.kernel.org/netdev/000000000000c87fbd05cef6bcb0@google.com/ [1]
Reported-and-tested-by: syzbot+28b0702ada0bf7381f58@syzkaller.appspotmail.com
Fixes: c6c8fea29769 ("net: Add batman-adv meshing protocol")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Acked-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/batman-adv/bridge_loop_avoidance.c |  8 +++-
 net/batman-adv/main.c                  | 56 ++++++++++++++++++--------
 net/batman-adv/network-coding.c        |  4 +-
 net/batman-adv/translation-table.c     |  4 +-
 4 files changed, 52 insertions(+), 20 deletions(-)

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index ba0027d1f2dfd..ee9cead765450 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1561,10 +1561,14 @@ int batadv_bla_init(struct batadv_priv *bat_priv)
 		return 0;
 
 	bat_priv->bla.claim_hash = batadv_hash_new(128);
-	bat_priv->bla.backbone_hash = batadv_hash_new(32);
+	if (!bat_priv->bla.claim_hash)
+		return -ENOMEM;
 
-	if (!bat_priv->bla.claim_hash || !bat_priv->bla.backbone_hash)
+	bat_priv->bla.backbone_hash = batadv_hash_new(32);
+	if (!bat_priv->bla.backbone_hash) {
+		batadv_hash_destroy(bat_priv->bla.claim_hash);
 		return -ENOMEM;
+	}
 
 	batadv_hash_set_lock_class(bat_priv->bla.claim_hash,
 				   &batadv_claim_hash_lock_class_key);
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 70fee9b42e25f..9f267b190779f 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -196,29 +196,41 @@ int batadv_mesh_init(struct net_device *soft_iface)
 
 	bat_priv->gw.generation = 0;
 
-	ret = batadv_v_mesh_init(bat_priv);
-	if (ret < 0)
-		goto err;
-
 	ret = batadv_originator_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_orig;
+	}
 
 	ret = batadv_tt_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_tt;
+	}
+
+	ret = batadv_v_mesh_init(bat_priv);
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_v;
+	}
 
 	ret = batadv_bla_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_bla;
+	}
 
 	ret = batadv_dat_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_dat;
+	}
 
 	ret = batadv_nc_mesh_init(bat_priv);
-	if (ret < 0)
-		goto err;
+	if (ret < 0) {
+		atomic_set(&bat_priv->mesh_state, BATADV_MESH_DEACTIVATING);
+		goto err_nc;
+	}
 
 	batadv_gw_init(bat_priv);
 	batadv_mcast_init(bat_priv);
@@ -228,8 +240,20 @@ int batadv_mesh_init(struct net_device *soft_iface)
 
 	return 0;
 
-err:
-	batadv_mesh_free(soft_iface);
+err_nc:
+	batadv_dat_free(bat_priv);
+err_dat:
+	batadv_bla_free(bat_priv);
+err_bla:
+	batadv_v_mesh_free(bat_priv);
+err_v:
+	batadv_tt_free(bat_priv);
+err_tt:
+	batadv_originator_free(bat_priv);
+err_orig:
+	batadv_purge_outstanding_packets(bat_priv, NULL);
+	atomic_set(&bat_priv->mesh_state, BATADV_MESH_INACTIVE);
+
 	return ret;
 }
 
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 61ddd6d709a0e..35b3e03c07774 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -155,8 +155,10 @@ int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
 				   &batadv_nc_coding_hash_lock_class_key);
 
 	bat_priv->nc.decoding_hash = batadv_hash_new(128);
-	if (!bat_priv->nc.decoding_hash)
+	if (!bat_priv->nc.decoding_hash) {
+		batadv_hash_destroy(bat_priv->nc.coding_hash);
 		goto err;
+	}
 
 	batadv_hash_set_lock_class(bat_priv->nc.decoding_hash,
 				   &batadv_nc_decoding_hash_lock_class_key);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index a510f7f86a7dc..de946ea8f13c8 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -4405,8 +4405,10 @@ int batadv_tt_init(struct batadv_priv *bat_priv)
 		return ret;
 
 	ret = batadv_tt_global_init(bat_priv);
-	if (ret < 0)
+	if (ret < 0) {
+		batadv_tt_local_table_free(bat_priv);
 		return ret;
+	}
 
 	batadv_tvlv_handler_register(bat_priv, batadv_tt_tvlv_ogm_handler_v1,
 				     batadv_tt_tvlv_unicast_handler_v1,
-- 
GitLab


From aed897e96b191b56109bac700bf3555113e75ea1 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Mon, 25 Oct 2021 02:31:48 -0400
Subject: [PATCH 0574/4878] net-sysfs: initialize uid and gid before calling
 net_ns_get_ownership

commit f7a1e76d0f608961cc2fc681f867a834f2746bce upstream.

Currently in net_ns_get_ownership() it may not be able to set uid or gid
if make_kuid or make_kgid returns an invalid value, and an uninit-value
issue can be triggered by this.

This patch is to fix it by initializing the uid and gid before calling
net_ns_get_ownership(), as it does in kobject_get_ownership()

Fixes: e6dee9f3893c ("net-sysfs: add netdev_change_owner()")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/net-sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index b4562f9d074cf..cc5f760c78250 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1957,9 +1957,9 @@ int netdev_register_kobject(struct net_device *ndev)
 int netdev_change_owner(struct net_device *ndev, const struct net *net_old,
 			const struct net *net_new)
 {
+	kuid_t old_uid = GLOBAL_ROOT_UID, new_uid = GLOBAL_ROOT_UID;
+	kgid_t old_gid = GLOBAL_ROOT_GID, new_gid = GLOBAL_ROOT_GID;
 	struct device *dev = &ndev->dev;
-	kuid_t old_uid, new_uid;
-	kgid_t old_gid, new_gid;
 	int error;
 
 	net_ns_get_ownership(net_old, &old_uid, &old_gid);
-- 
GitLab


From 04121b10cdf0361c0fac761a9264659935878693 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Date: Sun, 24 Oct 2021 22:15:46 +0200
Subject: [PATCH 0575/4878] cfg80211: correct bridge/4addr mode check

commit 689a0a9f505f7bffdefe6f17fddb41c8ab6344f6 upstream.

Without the patch we fail:

$ sudo brctl addbr br0
$ sudo brctl addif br0 wlp1s0
$ sudo iw wlp1s0 set 4addr on
command failed: Device or resource busy (-16)

Last command failed but iface was already in 4addr mode.

Fixes: ad4bb6f8883a ("cfg80211: disallow bridging managed/adhoc interfaces")
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Link: https://lore.kernel.org/r/20211024201546.614379-1-janusz.dziedzic@gmail.com
[add fixes tag, fix indentation, edit commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/wireless/util.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 4fb8d1b14e76a..3f8c46bb6d9a4 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1028,14 +1028,14 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 	    !(rdev->wiphy.interface_modes & (1 << ntype)))
 		return -EOPNOTSUPP;
 
-	/* if it's part of a bridge, reject changing type to station/ibss */
-	if (netif_is_bridge_port(dev) &&
-	    (ntype == NL80211_IFTYPE_ADHOC ||
-	     ntype == NL80211_IFTYPE_STATION ||
-	     ntype == NL80211_IFTYPE_P2P_CLIENT))
-		return -EBUSY;
-
 	if (ntype != otype) {
+		/* if it's part of a bridge, reject changing type to station/ibss */
+		if (netif_is_bridge_port(dev) &&
+		    (ntype == NL80211_IFTYPE_ADHOC ||
+		     ntype == NL80211_IFTYPE_STATION ||
+		     ntype == NL80211_IFTYPE_P2P_CLIENT))
+			return -EBUSY;
+
 		dev->ieee80211_ptr->use_4addr = false;
 		dev->ieee80211_ptr->mesh_id_up_len = 0;
 		wdev_lock(dev->ieee80211_ptr);
-- 
GitLab


From 2b7c5eed19d3009dd6cca36853b3a22d7eff9209 Mon Sep 17 00:00:00 2001
From: Michael Chan <michael.chan@broadcom.com>
Date: Mon, 25 Oct 2021 05:05:28 -0400
Subject: [PATCH 0576/4878] net: Prevent infinite while loop in skb_tx_hash()

commit 0c57eeecc559ca6bc18b8c4e2808bc78dbe769b0 upstream.

Drivers call netdev_set_num_tc() and then netdev_set_tc_queue()
to set the queue count and offset for each TC.  So the queue count
and offset for the TCs may be zero for a short period after dev->num_tc
has been set.  If a TX packet is being transmitted at this time in the
code path netdev_pick_tx() -> skb_tx_hash(), skb_tx_hash() may see
nonzero dev->num_tc but zero qcount for the TC.  The while loop that
keeps looping while hash >= qcount will not end.

Fix it by checking the TC's qcount to be nonzero before using it.

Fixes: eadec877ce9c ("net: Add support for subordinate traffic classes to netdev_pick_tx")
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/dev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index b9d19fbb15890..6a4e0e3c59fec 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3171,6 +3171,12 @@ static u16 skb_tx_hash(const struct net_device *dev,
 
 		qoffset = sb_dev->tc_to_txq[tc].offset;
 		qcount = sb_dev->tc_to_txq[tc].count;
+		if (unlikely(!qcount)) {
+			net_warn_ratelimited("%s: invalid qcount, qoffset %u for tc %u\n",
+					     sb_dev->name, qoffset, tc);
+			qoffset = 0;
+			qcount = dev->real_num_tx_queues;
+		}
 	}
 
 	if (skb_rx_queue_recorded(skb)) {
-- 
GitLab


From 863a423ee07b0d602335b283457c9337ad5a60c4 Mon Sep 17 00:00:00 2001
From: Mark Zhang <markzhang@nvidia.com>
Date: Sun, 24 Oct 2021 09:08:20 +0300
Subject: [PATCH 0577/4878] RDMA/sa_query: Use strscpy_pad instead of memcpy to
 copy a string

commit 64733956ebba7cc629856f4a6ee35a52bc9c023f upstream.

When copying the device name, the length of the data memcpy copied exceeds
the length of the source buffer, which cause the KASAN issue below.  Use
strscpy_pad() instead.

 BUG: KASAN: slab-out-of-bounds in ib_nl_set_path_rec_attrs+0x136/0x320 [ib_core]
 Read of size 64 at addr ffff88811a10f5e0 by task rping/140263
 CPU: 3 PID: 140263 Comm: rping Not tainted 5.15.0-rc1+ #1
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 Call Trace:
  dump_stack_lvl+0x57/0x7d
  print_address_description.constprop.0+0x1d/0xa0
  kasan_report+0xcb/0x110
  kasan_check_range+0x13d/0x180
  memcpy+0x20/0x60
  ib_nl_set_path_rec_attrs+0x136/0x320 [ib_core]
  ib_nl_make_request+0x1c6/0x380 [ib_core]
  send_mad+0x20a/0x220 [ib_core]
  ib_sa_path_rec_get+0x3e3/0x800 [ib_core]
  cma_query_ib_route+0x29b/0x390 [rdma_cm]
  rdma_resolve_route+0x308/0x3e0 [rdma_cm]
  ucma_resolve_route+0xe1/0x150 [rdma_ucm]
  ucma_write+0x17b/0x1f0 [rdma_ucm]
  vfs_write+0x142/0x4d0
  ksys_write+0x133/0x160
  do_syscall_64+0x43/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae
 RIP: 0033:0x7f26499aa90f
 Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 5c fd ff ff 48
 RSP: 002b:00007f26495f2dc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
 RAX: ffffffffffffffda RBX: 00000000000007d0 RCX: 00007f26499aa90f
 RDX: 0000000000000010 RSI: 00007f26495f2e00 RDI: 0000000000000003
 RBP: 00005632a8315440 R08: 0000000000000000 R09: 0000000000000001
 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f26495f2e00
 R13: 00005632a83154e0 R14: 00005632a8315440 R15: 00005632a830a810

 Allocated by task 131419:
  kasan_save_stack+0x1b/0x40
  __kasan_kmalloc+0x7c/0x90
  proc_self_get_link+0x8b/0x100
  pick_link+0x4f1/0x5c0
  step_into+0x2eb/0x3d0
  walk_component+0xc8/0x2c0
  link_path_walk+0x3b8/0x580
  path_openat+0x101/0x230
  do_filp_open+0x12e/0x240
  do_sys_openat2+0x115/0x280
  __x64_sys_openat+0xce/0x140
  do_syscall_64+0x43/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: 2ca546b92a02 ("IB/sa: Route SA pathrecord query through netlink")
Link: https://lore.kernel.org/r/72ede0f6dab61f7f23df9ac7a70666e07ef314b0.1635055496.git.leonro@nvidia.com
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/sa_query.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 8c930bf1df894..de88f472eaad2 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -760,8 +760,9 @@ static void ib_nl_set_path_rec_attrs(struct sk_buff *skb,
 
 	/* Construct the family header first */
 	header = skb_put(skb, NLMSG_ALIGN(sizeof(*header)));
-	memcpy(header->device_name, dev_name(&query->port->agent->device->dev),
-	       LS_DEVICE_NAME_MAX);
+	strscpy_pad(header->device_name,
+		    dev_name(&query->port->agent->device->dev),
+		    LS_DEVICE_NAME_MAX);
 	header->port_num = query->port->port_num;
 
 	if ((comp_mask & IB_SA_PATH_REC_REVERSIBLE) &&
-- 
GitLab


From aead02927af3aee16b2644315e47b3356719656b Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Thu, 14 Oct 2021 14:33:42 +0200
Subject: [PATCH 0578/4878] gpio: xgs-iproc: fix parsing of ngpios property

commit 85fe6415c146d5d42ce300c12f1ecf4d4af47d40 upstream.

of_property_read_u32 returns 0 on success, not true, so we need to
invert the check to actually take over the provided ngpio value.

Fixes: 6a41b6c5fc20 ("gpio: Add xgs-iproc driver")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-xgs-iproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-xgs-iproc.c b/drivers/gpio/gpio-xgs-iproc.c
index ad5489a65d542..dd40277b9d06d 100644
--- a/drivers/gpio/gpio-xgs-iproc.c
+++ b/drivers/gpio/gpio-xgs-iproc.c
@@ -224,7 +224,7 @@ static int iproc_gpio_probe(struct platform_device *pdev)
 	}
 
 	chip->gc.label = dev_name(dev);
-	if (of_property_read_u32(dn, "ngpios", &num_gpios))
+	if (!of_property_read_u32(dn, "ngpios", &num_gpios))
 		chip->gc.ngpio = num_gpios;
 
 	irq = platform_get_irq(pdev, 0);
-- 
GitLab


From be98be1a17e9502321889b2142b5cba4aec7e087 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 20 Oct 2021 12:11:16 -0700
Subject: [PATCH 0579/4878] nios2: Make NIOS2_DTB_SOURCE_BOOL depend on
 !COMPILE_TEST

commit 4a089e95b4d6bb625044d47aed0c442a8f7bd093 upstream.

nios2:allmodconfig builds fail with

make[1]: *** No rule to make target 'arch/nios2/boot/dts/""',
	needed by 'arch/nios2/boot/dts/built-in.a'.  Stop.
make: [Makefile:1868: arch/nios2/boot/dts] Error 2 (ignored)

This is seen with compile tests since those enable NIOS2_DTB_SOURCE_BOOL,
which in turn enables NIOS2_DTB_SOURCE. This causes the build error
because the default value for NIOS2_DTB_SOURCE is an empty string.
Disable NIOS2_DTB_SOURCE_BOOL for compile tests to avoid the error.

Fixes: 2fc8483fdcde ("nios2: Build infrastructure")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/nios2/platform/Kconfig.platform | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/nios2/platform/Kconfig.platform b/arch/nios2/platform/Kconfig.platform
index 9e32fb7f3d4ce..e849daff6fd16 100644
--- a/arch/nios2/platform/Kconfig.platform
+++ b/arch/nios2/platform/Kconfig.platform
@@ -37,6 +37,7 @@ config NIOS2_DTB_PHYS_ADDR
 
 config NIOS2_DTB_SOURCE_BOOL
 	bool "Compile and link device tree into kernel image"
+	depends on !COMPILE_TEST
 	help
 	  This allows you to specify a dts (device tree source) file
 	  which will be compiled and linked into the kernel image.
-- 
GitLab


From e81bed557fe7dedff78ac1a7c098f4375b4981e2 Mon Sep 17 00:00:00 2001
From: Ido Schimmel <idosch@nvidia.com>
Date: Sun, 24 Oct 2021 09:40:14 +0300
Subject: [PATCH 0580/4878] mlxsw: pci: Recycle received packet upon allocation
 failure

commit 759635760a804b0d8ad0cc677b650f1544cae22f upstream.

When the driver fails to allocate a new Rx buffer, it passes an empty Rx
descriptor (contains zero address and size) to the device and marks it
as invalid by setting the skb pointer in the descriptor's metadata to
NULL.

After processing enough Rx descriptors, the driver will try to process
the invalid descriptor, but will return immediately seeing that the skb
pointer is NULL. Since the driver no longer passes new Rx descriptors to
the device, the Rx queue will eventually become full and the device will
start to drop packets.

Fix this by recycling the received packet if allocation of the new
packet failed. This means that allocation is no longer performed at the
end of the Rx routine, but at the start, before tearing down the DMA
mapping of the received packet.

Remove the comment about the descriptor being zeroed as it is no longer
correct. This is OK because we either use the descriptor as-is (when
recycling) or overwrite its address and size fields with that of the
newly allocated Rx buffer.

The issue was discovered when a process ("perf") consumed too much
memory and put the system under memory pressure. It can be reproduced by
injecting slab allocation failures [1]. After the fix, the Rx queue no
longer comes to a halt.

[1]
 # echo 10 > /sys/kernel/debug/failslab/times
 # echo 1000 > /sys/kernel/debug/failslab/interval
 # echo 100 > /sys/kernel/debug/failslab/probability

 FAULT_INJECTION: forcing a failure.
 name failslab, interval 1000, probability 100, space 0, times 8
 [...]
 Call Trace:
  <IRQ>
  dump_stack_lvl+0x34/0x44
  should_fail.cold+0x32/0x37
  should_failslab+0x5/0x10
  kmem_cache_alloc_node+0x23/0x190
  __alloc_skb+0x1f9/0x280
  __netdev_alloc_skb+0x3a/0x150
  mlxsw_pci_rdq_skb_alloc+0x24/0x90
  mlxsw_pci_cq_tasklet+0x3dc/0x1200
  tasklet_action_common.constprop.0+0x9f/0x100
  __do_softirq+0xb5/0x252
  irq_exit_rcu+0x7a/0xa0
  common_interrupt+0x83/0xa0
  </IRQ>
  asm_common_interrupt+0x1e/0x40
 RIP: 0010:cpuidle_enter_state+0xc8/0x340
 [...]
 mlxsw_spectrum2 0000:06:00.0: Failed to alloc skb for RDQ

Fixes: eda6500a987a ("mlxsw: Add PCI bus implementation")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20211024064014.1060919-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlxsw/pci.c | 25 +++++++++++------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index 641cdd81882b8..ffaeda75eec42 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -353,13 +353,10 @@ static int mlxsw_pci_rdq_skb_alloc(struct mlxsw_pci *mlxsw_pci,
 	struct sk_buff *skb;
 	int err;
 
-	elem_info->u.rdq.skb = NULL;
 	skb = netdev_alloc_skb_ip_align(NULL, buf_len);
 	if (!skb)
 		return -ENOMEM;
 
-	/* Assume that wqe was previously zeroed. */
-
 	err = mlxsw_pci_wqe_frag_map(mlxsw_pci, wqe, 0, skb->data,
 				     buf_len, DMA_FROM_DEVICE);
 	if (err)
@@ -548,21 +545,26 @@ static void mlxsw_pci_cqe_rdq_handle(struct mlxsw_pci *mlxsw_pci,
 	struct pci_dev *pdev = mlxsw_pci->pdev;
 	struct mlxsw_pci_queue_elem_info *elem_info;
 	struct mlxsw_rx_info rx_info = {};
-	char *wqe;
+	char wqe[MLXSW_PCI_WQE_SIZE];
 	struct sk_buff *skb;
 	u16 byte_count;
 	int err;
 
 	elem_info = mlxsw_pci_queue_elem_info_consumer_get(q);
-	skb = elem_info->u.sdq.skb;
-	if (!skb)
-		return;
-	wqe = elem_info->elem;
-	mlxsw_pci_wqe_frag_unmap(mlxsw_pci, wqe, 0, DMA_FROM_DEVICE);
+	skb = elem_info->u.rdq.skb;
+	memcpy(wqe, elem_info->elem, MLXSW_PCI_WQE_SIZE);
 
 	if (q->consumer_counter++ != consumer_counter_limit)
 		dev_dbg_ratelimited(&pdev->dev, "Consumer counter does not match limit in RDQ\n");
 
+	err = mlxsw_pci_rdq_skb_alloc(mlxsw_pci, elem_info);
+	if (err) {
+		dev_err_ratelimited(&pdev->dev, "Failed to alloc skb for RDQ\n");
+		goto out;
+	}
+
+	mlxsw_pci_wqe_frag_unmap(mlxsw_pci, wqe, 0, DMA_FROM_DEVICE);
+
 	if (mlxsw_pci_cqe_lag_get(cqe_v, cqe)) {
 		rx_info.is_lag = true;
 		rx_info.u.lag_id = mlxsw_pci_cqe_lag_id_get(cqe_v, cqe);
@@ -594,10 +596,7 @@ static void mlxsw_pci_cqe_rdq_handle(struct mlxsw_pci *mlxsw_pci,
 	skb_put(skb, byte_count);
 	mlxsw_core_skb_receive(mlxsw_pci->core, skb, &rx_info);
 
-	memset(wqe, 0, q->elem_size);
-	err = mlxsw_pci_rdq_skb_alloc(mlxsw_pci, elem_info);
-	if (err)
-		dev_dbg_ratelimited(&pdev->dev, "Failed to alloc skb for RDQ\n");
+out:
 	/* Everything is set up, ring doorbell to pass elem to HW */
 	q->producer_counter++;
 	mlxsw_pci_queue_doorbell_producer_ring(mlxsw_pci, q);
-- 
GitLab


From bfa6fbdb4e39b8483fd7ec70c4c82a5105348193 Mon Sep 17 00:00:00 2001
From: Yuiko Oshino <yuiko.oshino@microchip.com>
Date: Fri, 22 Oct 2021 11:13:53 -0400
Subject: [PATCH 0581/4878] net: ethernet: microchip: lan743x: Fix driver crash
 when lan743x_pm_resume fails

commit d6423d2ec39cce2bfca418c81ef51792891576bc upstream.

The driver needs to clean up and return when the initialization fails on resume.

Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 8947c3a628109..79fd031f44eb5 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -3066,6 +3066,8 @@ static int lan743x_pm_resume(struct device *dev)
 	if (ret) {
 		netif_err(adapter, probe, adapter->netdev,
 			  "lan743x_hardware_init returned %d\n", ret);
+		lan743x_pci_cleanup(adapter);
+		return ret;
 	}
 
 	/* open netdev when netdev is at running state while resume.
-- 
GitLab


From c2af2092c9bbb33c0131a8aca5b8f6db7c223d08 Mon Sep 17 00:00:00 2001
From: Yuiko Oshino <yuiko.oshino@microchip.com>
Date: Fri, 22 Oct 2021 11:53:43 -0400
Subject: [PATCH 0582/4878] net: ethernet: microchip: lan743x: Fix dma
 allocation failure by using dma_set_mask_and_coherent

commit 95a359c9553342d36d408d35331ff0bfce75272f upstream.

The dma failure was reported in the raspberry pi github (issue #4117).
https://github.com/raspberrypi/linux/issues/4117
The use of dma_set_mask_and_coherent fixes the issue.
Tested on 32/64-bit raspberry pi CM4 and 64-bit ubuntu x86 PC with EVB-LAN7430.

Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 79fd031f44eb5..3355e0a5b272c 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1770,6 +1770,16 @@ static int lan743x_tx_ring_init(struct lan743x_tx *tx)
 		ret = -EINVAL;
 		goto cleanup;
 	}
+	if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev,
+				      DMA_BIT_MASK(64))) {
+		if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev,
+					      DMA_BIT_MASK(32))) {
+			dev_warn(&tx->adapter->pdev->dev,
+				 "lan743x_: No suitable DMA available\n");
+			ret = -ENOMEM;
+			goto cleanup;
+		}
+	}
 	ring_allocation_size = ALIGN(tx->ring_size *
 				     sizeof(struct lan743x_tx_descriptor),
 				     PAGE_SIZE);
@@ -2318,6 +2328,16 @@ static int lan743x_rx_ring_init(struct lan743x_rx *rx)
 		ret = -EINVAL;
 		goto cleanup;
 	}
+	if (dma_set_mask_and_coherent(&rx->adapter->pdev->dev,
+				      DMA_BIT_MASK(64))) {
+		if (dma_set_mask_and_coherent(&rx->adapter->pdev->dev,
+					      DMA_BIT_MASK(32))) {
+			dev_warn(&rx->adapter->pdev->dev,
+				 "lan743x_: No suitable DMA available\n");
+			ret = -ENOMEM;
+			goto cleanup;
+		}
+	}
 	ring_allocation_size = ALIGN(rx->ring_size *
 				     sizeof(struct lan743x_rx_descriptor),
 				     PAGE_SIZE);
-- 
GitLab


From 44e8c93e1e4960566b34beb85b73f5ab4a6b6e76 Mon Sep 17 00:00:00 2001
From: Trevor Woerner <twoerner@gmail.com>
Date: Sun, 24 Oct 2021 13:50:02 -0400
Subject: [PATCH 0583/4878] net: nxp: lpc_eth.c: avoid hang when bringing
 interface down

commit ace19b992436a257d9a793672e57abc28fe83e2e upstream.

A hard hang is observed whenever the ethernet interface is brought
down. If the PHY is stopped before the LPC core block is reset,
the SoC will hang. Comparing lpc_eth_close() and lpc_eth_open() I
re-arranged the ordering of the functions calls in lpc_eth_close() to
reset the hardware before stopping the PHY.
Fixes: b7370112f519 ("lpc32xx: Added ethernet driver")
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/nxp/lpc_eth.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index d3cbb4215f5cf..9e098e40fb1c6 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1015,9 +1015,6 @@ static int lpc_eth_close(struct net_device *ndev)
 	napi_disable(&pldat->napi);
 	netif_stop_queue(ndev);
 
-	if (ndev->phydev)
-		phy_stop(ndev->phydev);
-
 	spin_lock_irqsave(&pldat->lock, flags);
 	__lpc_eth_reset(pldat);
 	netif_carrier_off(ndev);
@@ -1025,6 +1022,8 @@ static int lpc_eth_close(struct net_device *ndev)
 	writel(0, LPC_ENET_MAC2(pldat->net_base));
 	spin_unlock_irqrestore(&pldat->lock, flags);
 
+	if (ndev->phydev)
+		phy_stop(ndev->phydev);
 	clk_disable_unprepare(pldat->clk);
 
 	return 0;
-- 
GitLab


From 58722323d4bc7e7fb9e1e4397551f7a02f2f2757 Mon Sep 17 00:00:00 2001
From: Daniel Jordan <daniel.m.jordan@oracle.com>
Date: Wed, 27 Oct 2021 17:59:21 -0400
Subject: [PATCH 0584/4878] net/tls: Fix flipped sign in async_wait.err
 assignment

commit 1d9d6fd21ad4a28b16ed9ee5432ae738b9dc58aa upstream.

sk->sk_err contains a positive number, yet async_wait.err wants the
opposite.  Fix the missed sign flip, which Jakub caught by inspection.

Fixes: a42055e8d2c3 ("net/tls: Add support for async encryption of records for performance")
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/tls/tls_sw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index eda1a5d0ef0c0..14cce61160a58 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -459,7 +459,7 @@ static void tls_encrypt_done(struct crypto_async_request *req, int err)
 
 		/* If err is already set on socket, return the same code */
 		if (sk->sk_err) {
-			ctx->async_wait.err = sk->sk_err;
+			ctx->async_wait.err = -sk->sk_err;
 		} else {
 			ctx->async_wait.err = err;
 			tls_err_abort(sk, err);
-- 
GitLab


From 258c5fea44cf09d502b7ce641abe8c01e6821655 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 24 Oct 2021 21:48:02 +0200
Subject: [PATCH 0585/4878] phy: phy_ethtool_ksettings_get: Lock the phy for
 consistency

commit c10a485c3de5ccbf1fff65a382cebcb2730c6b06 upstream.

The PHY structure should be locked while copying information out if
it, otherwise there is no guarantee of self consistency. Without the
lock the PHY state machine could be updating the structure.

Fixes: 2d55173e71b0 ("phy: add generic function to support ksetting support")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/phy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 28ddaad721ed1..56413b299e1b9 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -316,6 +316,7 @@ EXPORT_SYMBOL(phy_ethtool_ksettings_set);
 void phy_ethtool_ksettings_get(struct phy_device *phydev,
 			       struct ethtool_link_ksettings *cmd)
 {
+	mutex_lock(&phydev->lock);
 	linkmode_copy(cmd->link_modes.supported, phydev->supported);
 	linkmode_copy(cmd->link_modes.advertising, phydev->advertising);
 	linkmode_copy(cmd->link_modes.lp_advertising, phydev->lp_advertising);
@@ -334,6 +335,7 @@ void phy_ethtool_ksettings_get(struct phy_device *phydev,
 	cmd->base.autoneg = phydev->autoneg;
 	cmd->base.eth_tp_mdix_ctrl = phydev->mdix_ctrl;
 	cmd->base.eth_tp_mdix = phydev->mdix;
+	mutex_unlock(&phydev->lock);
 }
 EXPORT_SYMBOL(phy_ethtool_ksettings_get);
 
-- 
GitLab


From 81780b624d1cdf6920cd28c6c404d58e56972cd8 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 24 Oct 2021 21:48:03 +0200
Subject: [PATCH 0586/4878] phy: phy_ethtool_ksettings_set: Move after
 phy_start_aneg

commit 64cd92d5e8180c2ded3fdea76862de6f596ae2c9 upstream.

This allows it to make use of a helper which assume the PHY is already
locked.

Fixes: 2d55173e71b0 ("phy: add generic function to support ksetting support")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/phy.c | 106 +++++++++++++++++++++---------------------
 1 file changed, 53 insertions(+), 53 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 56413b299e1b9..13af3a28fe8fb 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -260,59 +260,6 @@ static void phy_sanitize_settings(struct phy_device *phydev)
 	}
 }
 
-int phy_ethtool_ksettings_set(struct phy_device *phydev,
-			      const struct ethtool_link_ksettings *cmd)
-{
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
-	u8 autoneg = cmd->base.autoneg;
-	u8 duplex = cmd->base.duplex;
-	u32 speed = cmd->base.speed;
-
-	if (cmd->base.phy_address != phydev->mdio.addr)
-		return -EINVAL;
-
-	linkmode_copy(advertising, cmd->link_modes.advertising);
-
-	/* We make sure that we don't pass unsupported values in to the PHY */
-	linkmode_and(advertising, advertising, phydev->supported);
-
-	/* Verify the settings we care about. */
-	if (autoneg != AUTONEG_ENABLE && autoneg != AUTONEG_DISABLE)
-		return -EINVAL;
-
-	if (autoneg == AUTONEG_ENABLE && linkmode_empty(advertising))
-		return -EINVAL;
-
-	if (autoneg == AUTONEG_DISABLE &&
-	    ((speed != SPEED_1000 &&
-	      speed != SPEED_100 &&
-	      speed != SPEED_10) ||
-	     (duplex != DUPLEX_HALF &&
-	      duplex != DUPLEX_FULL)))
-		return -EINVAL;
-
-	phydev->autoneg = autoneg;
-
-	if (autoneg == AUTONEG_DISABLE) {
-		phydev->speed = speed;
-		phydev->duplex = duplex;
-	}
-
-	linkmode_copy(phydev->advertising, advertising);
-
-	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
-			 phydev->advertising, autoneg == AUTONEG_ENABLE);
-
-	phydev->master_slave_set = cmd->base.master_slave_cfg;
-	phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
-
-	/* Restart the PHY */
-	phy_start_aneg(phydev);
-
-	return 0;
-}
-EXPORT_SYMBOL(phy_ethtool_ksettings_set);
-
 void phy_ethtool_ksettings_get(struct phy_device *phydev,
 			       struct ethtool_link_ksettings *cmd)
 {
@@ -818,6 +765,59 @@ static int phy_poll_aneg_done(struct phy_device *phydev)
 	return ret < 0 ? ret : 0;
 }
 
+int phy_ethtool_ksettings_set(struct phy_device *phydev,
+			      const struct ethtool_link_ksettings *cmd)
+{
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
+	u8 autoneg = cmd->base.autoneg;
+	u8 duplex = cmd->base.duplex;
+	u32 speed = cmd->base.speed;
+
+	if (cmd->base.phy_address != phydev->mdio.addr)
+		return -EINVAL;
+
+	linkmode_copy(advertising, cmd->link_modes.advertising);
+
+	/* We make sure that we don't pass unsupported values in to the PHY */
+	linkmode_and(advertising, advertising, phydev->supported);
+
+	/* Verify the settings we care about. */
+	if (autoneg != AUTONEG_ENABLE && autoneg != AUTONEG_DISABLE)
+		return -EINVAL;
+
+	if (autoneg == AUTONEG_ENABLE && linkmode_empty(advertising))
+		return -EINVAL;
+
+	if (autoneg == AUTONEG_DISABLE &&
+	    ((speed != SPEED_1000 &&
+	      speed != SPEED_100 &&
+	      speed != SPEED_10) ||
+	     (duplex != DUPLEX_HALF &&
+	      duplex != DUPLEX_FULL)))
+		return -EINVAL;
+
+	phydev->autoneg = autoneg;
+
+	if (autoneg == AUTONEG_DISABLE) {
+		phydev->speed = speed;
+		phydev->duplex = duplex;
+	}
+
+	linkmode_copy(phydev->advertising, advertising);
+
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+			 phydev->advertising, autoneg == AUTONEG_ENABLE);
+
+	phydev->master_slave_set = cmd->base.master_slave_cfg;
+	phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
+
+	/* Restart the PHY */
+	phy_start_aneg(phydev);
+
+	return 0;
+}
+EXPORT_SYMBOL(phy_ethtool_ksettings_set);
+
 /**
  * phy_speed_down - set speed to lowest speed supported by both link partners
  * @phydev: the phy_device struct
-- 
GitLab


From 5b88bb9377ee48bf29c2c184cdabc7036dc4ddd6 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 24 Oct 2021 21:48:04 +0200
Subject: [PATCH 0587/4878] phy: phy_start_aneg: Add an unlocked version

commit 707293a56f95f8e7e0cfae008010c7933fb68973 upstream.

Split phy_start_aneg into a wrapper which takes the PHY lock, and a
helper doing the real work. This will be needed when
phy_ethtook_ksettings_set takes the lock.

Fixes: 2d55173e71b0 ("phy: add generic function to support ksetting support")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/phy.c | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 13af3a28fe8fb..a84b68e7ce827 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -716,7 +716,7 @@ static int phy_check_link_status(struct phy_device *phydev)
 }
 
 /**
- * phy_start_aneg - start auto-negotiation for this PHY device
+ * _phy_start_aneg - start auto-negotiation for this PHY device
  * @phydev: the phy_device struct
  *
  * Description: Sanitizes the settings (if we're not autonegotiating
@@ -724,25 +724,43 @@ static int phy_check_link_status(struct phy_device *phydev)
  *   If the PHYCONTROL Layer is operating, we change the state to
  *   reflect the beginning of Auto-negotiation or forcing.
  */
-int phy_start_aneg(struct phy_device *phydev)
+static int _phy_start_aneg(struct phy_device *phydev)
 {
 	int err;
 
+	lockdep_assert_held(&phydev->lock);
+
 	if (!phydev->drv)
 		return -EIO;
 
-	mutex_lock(&phydev->lock);
-
 	if (AUTONEG_DISABLE == phydev->autoneg)
 		phy_sanitize_settings(phydev);
 
 	err = phy_config_aneg(phydev);
 	if (err < 0)
-		goto out_unlock;
+		return err;
 
 	if (phy_is_started(phydev))
 		err = phy_check_link_status(phydev);
-out_unlock:
+
+	return err;
+}
+
+/**
+ * phy_start_aneg - start auto-negotiation for this PHY device
+ * @phydev: the phy_device struct
+ *
+ * Description: Sanitizes the settings (if we're not autonegotiating
+ *   them), and then calls the driver's config_aneg function.
+ *   If the PHYCONTROL Layer is operating, we change the state to
+ *   reflect the beginning of Auto-negotiation or forcing.
+ */
+int phy_start_aneg(struct phy_device *phydev)
+{
+	int err;
+
+	mutex_lock(&phydev->lock);
+	err = _phy_start_aneg(phydev);
 	mutex_unlock(&phydev->lock);
 
 	return err;
-- 
GitLab


From 4509000a2515d26faeac5d44bb00d6ccf325ebd2 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 24 Oct 2021 21:48:05 +0200
Subject: [PATCH 0588/4878] phy: phy_ethtool_ksettings_set: Lock the PHY while
 changing settings

commit af1a02aa23c37045e6adfcf074cf7dbac167a403 upstream.

There is a race condition where the PHY state machine can change
members of the phydev structure at the same time userspace requests a
change via ethtool. To prevent this, have phy_ethtool_ksettings_set
take the PHY lock.

Fixes: 2d55173e71b0 ("phy: add generic function to support ksetting support")
Reported-by: Walter Stoll <Walter.Stoll@duagon.com>
Suggested-by: Walter Stoll <Walter.Stoll@duagon.com>
Tested-by: Walter Stoll <Walter.Stoll@duagon.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/phy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index a84b68e7ce827..5ee7cde0c2e97 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -814,6 +814,7 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
 	      duplex != DUPLEX_FULL)))
 		return -EINVAL;
 
+	mutex_lock(&phydev->lock);
 	phydev->autoneg = autoneg;
 
 	if (autoneg == AUTONEG_DISABLE) {
@@ -830,8 +831,9 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
 	phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
 
 	/* Restart the PHY */
-	phy_start_aneg(phydev);
+	_phy_start_aneg(phydev);
 
+	mutex_unlock(&phydev->lock);
 	return 0;
 }
 EXPORT_SYMBOL(phy_ethtool_ksettings_set);
-- 
GitLab


From ad111d4435d85fd3eeb2c09692030d89f8862401 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:41 -0400
Subject: [PATCH 0589/4878] sctp: use init_tag from inithdr for ABORT chunk

[ Upstream commit 4f7019c7eb33967eb87766e0e4602b5576873680 ]

Currently Linux SCTP uses the verification tag of the existing SCTP
asoc when failing to process and sending the packet with the ABORT
chunk. This will result in the peer accepting the ABORT chunk and
removing the SCTP asoc. One could exploit this to terminate a SCTP
asoc.

This patch is to fix it by always using the initiate tag of the
received INIT chunk for the ABORT chunk to be sent.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/sm_statefuns.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index b65bdaa84228f..89a86728184d1 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -6248,6 +6248,7 @@ static struct sctp_packet *sctp_ootb_pkt_new(
 		 * yet.
 		 */
 		switch (chunk->chunk_hdr->type) {
+		case SCTP_CID_INIT:
 		case SCTP_CID_INIT_ACK:
 		{
 			struct sctp_initack_chunk *initack;
-- 
GitLab


From 8c50693d25e4ab6873b32bc3cea23b382a94d05f Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:43 -0400
Subject: [PATCH 0590/4878] sctp: fix the processing for INIT_ACK chunk

[ Upstream commit 438b95a7c98f77d51cbf4db021f41b602d750a3f ]

Currently INIT_ACK chunk in non-cookie_echoed state is processed in
sctp_sf_discard_chunk() to send an abort with the existent asoc's
vtag if the chunk length is not valid. But the vtag in the chunk's
sctphdr is not verified, which may be exploited by one to cook a
malicious chunk to terminal a SCTP asoc.

sctp_sf_discard_chunk() also is called in many other places to send
an abort, and most of those have this problem. This patch is to fix
it by sending abort with the existent asoc's vtag only if the vtag
from the chunk's sctphdr is verified in sctp_sf_discard_chunk().

Note on sctp_sf_do_9_1_abort() and sctp_sf_shutdown_pending_abort(),
the chunk length has been verified before sctp_sf_discard_chunk(),
so replace it with sctp_sf_discard(). On sctp_sf_do_asconf_ack() and
sctp_sf_do_asconf(), move the sctp_chunk_length_valid check ahead of
sctp_sf_discard_chunk(), then replace it with sctp_sf_discard().

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/sm_statefuns.c | 37 +++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 89a86728184d1..5063f98843678 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -2280,7 +2280,7 @@ enum sctp_disposition sctp_sf_shutdown_pending_abort(
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	if (!sctp_err_chunk_valid(chunk))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@@ -2326,7 +2326,7 @@ enum sctp_disposition sctp_sf_shutdown_sent_abort(
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	if (!sctp_err_chunk_valid(chunk))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@@ -2596,7 +2596,7 @@ enum sctp_disposition sctp_sf_do_9_1_abort(
 	 */
 	if (SCTP_ADDR_DEL ==
 		    sctp_bind_addr_state(&asoc->base.bind_addr, &chunk->dest))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg, commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	if (!sctp_err_chunk_valid(chunk))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@@ -3745,6 +3745,11 @@ enum sctp_disposition sctp_sf_do_asconf(struct net *net,
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 	}
 
+	/* Make sure that the ASCONF ADDIP chunk has a valid length.  */
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_addip_chunk)))
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
+
 	/* ADD-IP: Section 4.1.1
 	 * This chunk MUST be sent in an authenticated way by using
 	 * the mechanism defined in [I-D.ietf-tsvwg-sctp-auth]. If this chunk
@@ -3753,13 +3758,7 @@ enum sctp_disposition sctp_sf_do_asconf(struct net *net,
 	 */
 	if (!asoc->peer.asconf_capable ||
 	    (!net->sctp.addip_noauth && !chunk->auth))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg,
-					     commands);
-
-	/* Make sure that the ASCONF ADDIP chunk has a valid length.  */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_addip_chunk)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	hdr = (struct sctp_addiphdr *)chunk->skb->data;
 	serial = ntohl(hdr->serial);
@@ -3888,6 +3887,12 @@ enum sctp_disposition sctp_sf_do_asconf_ack(struct net *net,
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 	}
 
+	/* Make sure that the ADDIP chunk has a valid length.  */
+	if (!sctp_chunk_length_valid(asconf_ack,
+				     sizeof(struct sctp_addip_chunk)))
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
+
 	/* ADD-IP, Section 4.1.2:
 	 * This chunk MUST be sent in an authenticated way by using
 	 * the mechanism defined in [I-D.ietf-tsvwg-sctp-auth]. If this chunk
@@ -3896,14 +3901,7 @@ enum sctp_disposition sctp_sf_do_asconf_ack(struct net *net,
 	 */
 	if (!asoc->peer.asconf_capable ||
 	    (!net->sctp.addip_noauth && !asconf_ack->auth))
-		return sctp_sf_discard_chunk(net, ep, asoc, type, arg,
-					     commands);
-
-	/* Make sure that the ADDIP chunk has a valid length.  */
-	if (!sctp_chunk_length_valid(asconf_ack,
-				     sizeof(struct sctp_addip_chunk)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
 	addip_hdr = (struct sctp_addiphdr *)asconf_ack->skb->data;
 	rcvd_serial = ntohl(addip_hdr->serial);
@@ -4475,6 +4473,9 @@ enum sctp_disposition sctp_sf_discard_chunk(struct net *net,
 {
 	struct sctp_chunk *chunk = arg;
 
+	if (asoc && !sctp_vtag_verify(chunk, asoc))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* Make sure that the chunk has a valid length.
 	 * Since we don't know the chunk type, we use a general
 	 * chunkhdr structure to make a comparison.
-- 
GitLab


From dad2486414b5c81697aa5a24383fbb65fad13cae Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:44 -0400
Subject: [PATCH 0591/4878] sctp: fix the processing for COOKIE_ECHO chunk

[ Upstream commit a64b341b8695e1c744dd972b39868371b4f68f83 ]

1. In closed state: in sctp_sf_do_5_1D_ce():

  When asoc is NULL, making packet for abort will use chunk's vtag
  in sctp_ootb_pkt_new(). But when asoc exists, vtag from the chunk
  should be verified before using peer.i.init_tag to make packet
  for abort in sctp_ootb_pkt_new(), and just discard it if vtag is
  not correct.

2. In the other states: in sctp_sf_do_5_2_4_dupcook():

  asoc always exists, but duplicate cookie_echo's vtag will be
  handled by sctp_tietags_compare() and then take actions, so before
  that we only verify the vtag for the abort sent for invalid chunk
  length.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/sm_statefuns.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 5063f98843678..0cfbf6046bf87 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -697,6 +697,9 @@ enum sctp_disposition sctp_sf_do_5_1D_ce(struct net *net,
 	struct sock *sk;
 	int error = 0;
 
+	if (asoc && !sctp_vtag_verify(chunk, asoc))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* If the packet is an OOTB packet which is temporarily on the
 	 * control endpoint, respond with an ABORT.
 	 */
@@ -711,7 +714,8 @@ enum sctp_disposition sctp_sf_do_5_1D_ce(struct net *net,
 	 * in sctp_unpack_cookie().
 	 */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
-		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
+						  commands);
 
 	/* If the endpoint is not listening or if the number of associations
 	 * on the TCP-style socket exceed the max backlog, respond with an
@@ -2141,9 +2145,11 @@ enum sctp_disposition sctp_sf_do_5_2_4_dupcook(
 	 * enough for the chunk header.  Cookie length verification is
 	 * done later.
 	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr))) {
+		if (!sctp_vtag_verify(chunk, asoc))
+			asoc = NULL;
+		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg, commands);
+	}
 
 	/* "Decode" the chunk.  We have no optional parameters so we
 	 * are in good shape.
-- 
GitLab


From 14c1e02b11c2233343573aff90766ef8472f27e7 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:45 -0400
Subject: [PATCH 0592/4878] sctp: add vtag check in sctp_sf_violation

[ Upstream commit aa0f697e45286a6b5f0ceca9418acf54b9099d99 ]

sctp_sf_violation() is called when processing HEARTBEAT_ACK chunk
in cookie_wait state, and some other places are also using it.

The vtag in the chunk's sctphdr should be verified, otherwise, as
later in chunk length check, it may send abort with the existent
asoc's vtag, which can be exploited by one to cook a malicious
chunk to terminate a SCTP asoc.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/sm_statefuns.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 0cfbf6046bf87..324c0222d9e6b 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -4549,6 +4549,9 @@ enum sctp_disposition sctp_sf_violation(struct net *net,
 {
 	struct sctp_chunk *chunk = arg;
 
+	if (!sctp_vtag_verify(chunk, asoc))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* Make sure that the chunk has a valid length. */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
 		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-- 
GitLab


From c2442f721972ea7c317fbfd55c902616b3151ad5 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:46 -0400
Subject: [PATCH 0593/4878] sctp: add vtag check in sctp_sf_do_8_5_1_E_sa

[ Upstream commit ef16b1734f0a176277b7bb9c71a6d977a6ef3998 ]

sctp_sf_do_8_5_1_E_sa() is called when processing SHUTDOWN_ACK chunk
in cookie_wait and cookie_echoed state.

The vtag in the chunk's sctphdr should be verified, otherwise, as
later in chunk length check, it may send abort with the existent
asoc's vtag, which can be exploited by one to cook a malicious
chunk to terminate a SCTP asoc.

Note that when fails to verify the vtag from SHUTDOWN-ACK chunk,
SHUTDOWN COMPLETE message will still be sent back to peer, but
with the vtag from SHUTDOWN-ACK chunk, as said in 5) of
rfc4960#section-8.4.

While at it, also remove the unnecessary chunk length check from
sctp_sf_shut_8_4_5(), as it's already done in both places where
it calls sctp_sf_shut_8_4_5().

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/sm_statefuns.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 324c0222d9e6b..82a76fda226b3 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3683,12 +3683,6 @@ static enum sctp_disposition sctp_sf_shut_8_4_5(
 
 	SCTP_INC_STATS(net, SCTP_MIB_OUTCTRLCHUNKS);
 
-	/* If the chunk length is invalid, we don't want to process
-	 * the reset of the packet.
-	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
-		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
-
 	/* We need to discard the rest of the packet to prevent
 	 * potential bomming attacks from additional bundled chunks.
 	 * This is documented in SCTP Threats ID.
@@ -3716,6 +3710,9 @@ enum sctp_disposition sctp_sf_do_8_5_1_E_sa(struct net *net,
 {
 	struct sctp_chunk *chunk = arg;
 
+	if (!sctp_vtag_verify(chunk, asoc))
+		asoc = NULL;
+
 	/* Make sure that the SHUTDOWN_ACK chunk has a valid length. */
 	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_chunkhdr)))
 		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-- 
GitLab


From a7112b8eeb14b3db21bc96abc79ca7525d77e129 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:47 -0400
Subject: [PATCH 0594/4878] sctp: add vtag check in sctp_sf_ootb

[ Upstream commit 9d02831e517aa36ee6bdb453a0eb47bd49923fe3 ]

sctp_sf_ootb() is called when processing DATA chunk in closed state,
and many other places are also using it.

The vtag in the chunk's sctphdr should be verified, otherwise, as
later in chunk length check, it may send abort with the existent
asoc's vtag, which can be exploited by one to cook a malicious
chunk to terminate a SCTP asoc.

When fails to verify the vtag from the chunk, this patch sets asoc
to NULL, so that the abort will be made with the vtag from the
received chunk later.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/sm_statefuns.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 82a76fda226b3..096e6be1d8fc8 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3568,6 +3568,9 @@ enum sctp_disposition sctp_sf_ootb(struct net *net,
 
 	SCTP_INC_STATS(net, SCTP_MIB_OUTOFBLUES);
 
+	if (asoc && !sctp_vtag_verify(chunk, asoc))
+		asoc = NULL;
+
 	ch = (struct sctp_chunkhdr *)chunk->chunk_hdr;
 	do {
 		/* Report violation if the chunk is less then minimal */
-- 
GitLab


From 727e5deca8027b0dd25eb3b1852134bf965767c3 Mon Sep 17 00:00:00 2001
From: Alexey Denisov <rtgbnm@gmail.com>
Date: Thu, 28 Jan 2021 09:48:59 +0500
Subject: [PATCH 0595/4878] lan743x: fix endianness when accessing descriptors

[ Upstream commit 462512824f902a24de794290dd622e664587da1d ]

TX/RX descriptor ring fields are always little-endian, but conversion
wasn't performed for big-endian CPUs, so the driver failed to work.

This patch makes the driver work on big-endian CPUs. It was tested and
confirmed to work on NXP P1010 processor (PowerPC).

Signed-off-by: Alexey Denisov <rtgbnm@gmail.com>
Link: https://lore.kernel.org/r/20210128044859.280219-1-rtgbnm@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 66 +++++++++----------
 drivers/net/ethernet/microchip/lan743x_main.h | 20 +++---
 2 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 3355e0a5b272c..e14dfaafe4391 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1280,7 +1280,7 @@ static void lan743x_tx_release_desc(struct lan743x_tx *tx,
 	if (!(buffer_info->flags & TX_BUFFER_INFO_FLAG_ACTIVE))
 		goto done;
 
-	descriptor_type = (descriptor->data0) &
+	descriptor_type = le32_to_cpu(descriptor->data0) &
 			  TX_DESC_DATA0_DTYPE_MASK_;
 	if (descriptor_type == TX_DESC_DATA0_DTYPE_DATA_)
 		goto clean_up_data_descriptor;
@@ -1340,7 +1340,7 @@ static int lan743x_tx_next_index(struct lan743x_tx *tx, int index)
 
 static void lan743x_tx_release_completed_descriptors(struct lan743x_tx *tx)
 {
-	while ((*tx->head_cpu_ptr) != (tx->last_head)) {
+	while (le32_to_cpu(*tx->head_cpu_ptr) != (tx->last_head)) {
 		lan743x_tx_release_desc(tx, tx->last_head, false);
 		tx->last_head = lan743x_tx_next_index(tx, tx->last_head);
 	}
@@ -1426,10 +1426,10 @@ static int lan743x_tx_frame_start(struct lan743x_tx *tx,
 	if (dma_mapping_error(dev, dma_ptr))
 		return -ENOMEM;
 
-	tx_descriptor->data1 = DMA_ADDR_LOW32(dma_ptr);
-	tx_descriptor->data2 = DMA_ADDR_HIGH32(dma_ptr);
-	tx_descriptor->data3 = (frame_length << 16) &
-		TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_;
+	tx_descriptor->data1 = cpu_to_le32(DMA_ADDR_LOW32(dma_ptr));
+	tx_descriptor->data2 = cpu_to_le32(DMA_ADDR_HIGH32(dma_ptr));
+	tx_descriptor->data3 = cpu_to_le32((frame_length << 16) &
+		TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_);
 
 	buffer_info->skb = NULL;
 	buffer_info->dma_ptr = dma_ptr;
@@ -1470,7 +1470,7 @@ static void lan743x_tx_frame_add_lso(struct lan743x_tx *tx,
 		tx->frame_data0 |= TX_DESC_DATA0_IOC_;
 	}
 	tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail];
-	tx_descriptor->data0 = tx->frame_data0;
+	tx_descriptor->data0 = cpu_to_le32(tx->frame_data0);
 
 	/* move to next descriptor */
 	tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail);
@@ -1514,7 +1514,7 @@ static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx,
 
 	/* wrap up previous descriptor */
 	tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail];
-	tx_descriptor->data0 = tx->frame_data0;
+	tx_descriptor->data0 = cpu_to_le32(tx->frame_data0);
 
 	/* move to next descriptor */
 	tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail);
@@ -1540,10 +1540,10 @@ static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx,
 		return -ENOMEM;
 	}
 
-	tx_descriptor->data1 = DMA_ADDR_LOW32(dma_ptr);
-	tx_descriptor->data2 = DMA_ADDR_HIGH32(dma_ptr);
-	tx_descriptor->data3 = (frame_length << 16) &
-			       TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_;
+	tx_descriptor->data1 = cpu_to_le32(DMA_ADDR_LOW32(dma_ptr));
+	tx_descriptor->data2 = cpu_to_le32(DMA_ADDR_HIGH32(dma_ptr));
+	tx_descriptor->data3 = cpu_to_le32((frame_length << 16) &
+			       TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_);
 
 	buffer_info->skb = NULL;
 	buffer_info->dma_ptr = dma_ptr;
@@ -1587,7 +1587,7 @@ static void lan743x_tx_frame_end(struct lan743x_tx *tx,
 	if (ignore_sync)
 		buffer_info->flags |= TX_BUFFER_INFO_FLAG_IGNORE_SYNC;
 
-	tx_descriptor->data0 = tx->frame_data0;
+	tx_descriptor->data0 = cpu_to_le32(tx->frame_data0);
 	tx->frame_tail = lan743x_tx_next_index(tx, tx->frame_tail);
 	tx->last_tail = tx->frame_tail;
 
@@ -2004,11 +2004,11 @@ static int lan743x_rx_init_ring_element(struct lan743x_rx *rx, int index,
 	}
 
 	buffer_info->buffer_length = length;
-	descriptor->data1 = DMA_ADDR_LOW32(buffer_info->dma_ptr);
-	descriptor->data2 = DMA_ADDR_HIGH32(buffer_info->dma_ptr);
+	descriptor->data1 = cpu_to_le32(DMA_ADDR_LOW32(buffer_info->dma_ptr));
+	descriptor->data2 = cpu_to_le32(DMA_ADDR_HIGH32(buffer_info->dma_ptr));
 	descriptor->data3 = 0;
-	descriptor->data0 = (RX_DESC_DATA0_OWN_ |
-			    (length & RX_DESC_DATA0_BUF_LENGTH_MASK_));
+	descriptor->data0 = cpu_to_le32((RX_DESC_DATA0_OWN_ |
+			    (length & RX_DESC_DATA0_BUF_LENGTH_MASK_)));
 	skb_reserve(buffer_info->skb, RX_HEAD_PADDING);
 	lan743x_rx_update_tail(rx, index);
 
@@ -2023,12 +2023,12 @@ static void lan743x_rx_reuse_ring_element(struct lan743x_rx *rx, int index)
 	descriptor = &rx->ring_cpu_ptr[index];
 	buffer_info = &rx->buffer_info[index];
 
-	descriptor->data1 = DMA_ADDR_LOW32(buffer_info->dma_ptr);
-	descriptor->data2 = DMA_ADDR_HIGH32(buffer_info->dma_ptr);
+	descriptor->data1 = cpu_to_le32(DMA_ADDR_LOW32(buffer_info->dma_ptr));
+	descriptor->data2 = cpu_to_le32(DMA_ADDR_HIGH32(buffer_info->dma_ptr));
 	descriptor->data3 = 0;
-	descriptor->data0 = (RX_DESC_DATA0_OWN_ |
+	descriptor->data0 = cpu_to_le32((RX_DESC_DATA0_OWN_ |
 			    ((buffer_info->buffer_length) &
-			    RX_DESC_DATA0_BUF_LENGTH_MASK_));
+			    RX_DESC_DATA0_BUF_LENGTH_MASK_)));
 	lan743x_rx_update_tail(rx, index);
 }
 
@@ -2062,7 +2062,7 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 {
 	struct skb_shared_hwtstamps *hwtstamps = NULL;
 	int result = RX_PROCESS_RESULT_NOTHING_TO_DO;
-	int current_head_index = *rx->head_cpu_ptr;
+	int current_head_index = le32_to_cpu(*rx->head_cpu_ptr);
 	struct lan743x_rx_buffer_info *buffer_info;
 	struct lan743x_rx_descriptor *descriptor;
 	int extension_index = -1;
@@ -2077,14 +2077,14 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 
 	if (rx->last_head != current_head_index) {
 		descriptor = &rx->ring_cpu_ptr[rx->last_head];
-		if (descriptor->data0 & RX_DESC_DATA0_OWN_)
+		if (le32_to_cpu(descriptor->data0) & RX_DESC_DATA0_OWN_)
 			goto done;
 
-		if (!(descriptor->data0 & RX_DESC_DATA0_FS_))
+		if (!(le32_to_cpu(descriptor->data0) & RX_DESC_DATA0_FS_))
 			goto done;
 
 		first_index = rx->last_head;
-		if (descriptor->data0 & RX_DESC_DATA0_LS_) {
+		if (le32_to_cpu(descriptor->data0) & RX_DESC_DATA0_LS_) {
 			last_index = rx->last_head;
 		} else {
 			int index;
@@ -2092,10 +2092,10 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 			index = lan743x_rx_next_index(rx, first_index);
 			while (index != current_head_index) {
 				descriptor = &rx->ring_cpu_ptr[index];
-				if (descriptor->data0 & RX_DESC_DATA0_OWN_)
+				if (le32_to_cpu(descriptor->data0) & RX_DESC_DATA0_OWN_)
 					goto done;
 
-				if (descriptor->data0 & RX_DESC_DATA0_LS_) {
+				if (le32_to_cpu(descriptor->data0) & RX_DESC_DATA0_LS_) {
 					last_index = index;
 					break;
 				}
@@ -2104,17 +2104,17 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 		}
 		if (last_index >= 0) {
 			descriptor = &rx->ring_cpu_ptr[last_index];
-			if (descriptor->data0 & RX_DESC_DATA0_EXT_) {
+			if (le32_to_cpu(descriptor->data0) & RX_DESC_DATA0_EXT_) {
 				/* extension is expected to follow */
 				int index = lan743x_rx_next_index(rx,
 								  last_index);
 				if (index != current_head_index) {
 					descriptor = &rx->ring_cpu_ptr[index];
-					if (descriptor->data0 &
+					if (le32_to_cpu(descriptor->data0) &
 					    RX_DESC_DATA0_OWN_) {
 						goto done;
 					}
-					if (descriptor->data0 &
+					if (le32_to_cpu(descriptor->data0) &
 					    RX_DESC_DATA0_EXT_) {
 						extension_index = index;
 					} else {
@@ -2166,7 +2166,7 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 			}
 			buffer_info->skb = NULL;
 			packet_length =	RX_DESC_DATA0_FRAME_LENGTH_GET_
-					(descriptor->data0);
+					(le32_to_cpu(descriptor->data0));
 			skb_put(skb, packet_length - 4);
 			skb->protocol = eth_type_trans(skb,
 						       rx->adapter->netdev);
@@ -2204,8 +2204,8 @@ process_extension:
 			descriptor = &rx->ring_cpu_ptr[extension_index];
 			buffer_info = &rx->buffer_info[extension_index];
 
-			ts_sec = descriptor->data1;
-			ts_nsec = (descriptor->data2 &
+			ts_sec = le32_to_cpu(descriptor->data1);
+			ts_nsec = (le32_to_cpu(descriptor->data2) &
 				  RX_DESC_DATA2_TS_NS_MASK_);
 			lan743x_rx_reuse_ring_element(rx, extension_index);
 			real_last_index = extension_index;
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index a536f4a4994df..751f2bc9ce84e 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h
@@ -660,7 +660,7 @@ struct lan743x_tx {
 
 	struct lan743x_tx_buffer_info *buffer_info;
 
-	u32		*head_cpu_ptr;
+	__le32		*head_cpu_ptr;
 	dma_addr_t	head_dma_ptr;
 	int		last_head;
 	int		last_tail;
@@ -690,7 +690,7 @@ struct lan743x_rx {
 
 	struct lan743x_rx_buffer_info *buffer_info;
 
-	u32		*head_cpu_ptr;
+	__le32		*head_cpu_ptr;
 	dma_addr_t	head_dma_ptr;
 	u32		last_head;
 	u32		last_tail;
@@ -775,10 +775,10 @@ struct lan743x_adapter {
 #define TX_DESC_DATA3_FRAME_LENGTH_MSS_MASK_	(0x3FFF0000)
 
 struct lan743x_tx_descriptor {
-	u32     data0;
-	u32     data1;
-	u32     data2;
-	u32     data3;
+	__le32     data0;
+	__le32     data1;
+	__le32     data2;
+	__le32     data3;
 } __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);
 
 #define TX_BUFFER_INFO_FLAG_ACTIVE		BIT(0)
@@ -813,10 +813,10 @@ struct lan743x_tx_buffer_info {
 #define RX_HEAD_PADDING		NET_IP_ALIGN
 
 struct lan743x_rx_descriptor {
-	u32     data0;
-	u32     data1;
-	u32     data2;
-	u32     data3;
+	__le32     data0;
+	__le32     data1;
+	__le32     data2;
+	__le32     data3;
 } __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);
 
 #define RX_BUFFER_INFO_FLAG_ACTIVE      BIT(0)
-- 
GitLab


From e11a7355fb984dacd09f33ec7954938afa8e6de5 Mon Sep 17 00:00:00 2001
From: Halil Pasic <pasic@linux.ibm.com>
Date: Tue, 19 Oct 2021 19:53:59 +0200
Subject: [PATCH 0596/4878] KVM: s390: clear kicked_mask before sleeping again

[ Upstream commit 9b57e9d5010bbed7c0d9d445085840f7025e6f9a ]

The idea behind kicked mask is that we should not re-kick a vcpu that
is already in the "kick" process, i.e. that was kicked and is
is about to be dispatched if certain conditions are met.

The problem with the current implementation is, that it assumes the
kicked vcpu is going to enter SIE shortly. But under certain
circumstances, the vcpu we just kicked will be deemed non-runnable and
will remain in wait state. This can happen, if the interrupt(s) this
vcpu got kicked to deal with got already cleared (because the interrupts
got delivered to another vcpu). In this case kvm_arch_vcpu_runnable()
would return false, and the vcpu would remain in kvm_vcpu_block(),
but this time with its kicked_mask bit set. So next time around we
wouldn't kick the vcpu form __airqs_kick_single_vcpu(), but would assume
that we just kicked it.

Let us make sure the kicked_mask is cleared before we give up on
re-dispatching the vcpu.

Fixes: 9f30f6216378 ("KVM: s390: add gib_alert_irq_handler()")
Reported-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Michael Mueller <mimu@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20211019175401.3757927-2-pasic@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kvm/kvm-s390.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 7f719b468b440..00f03f363c9b0 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -3312,6 +3312,7 @@ out_free_sie_block:
 
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
 {
+	clear_bit(vcpu->vcpu_idx, vcpu->kvm->arch.gisa_int.kicked_mask);
 	return kvm_s390_vcpu_has_irq(vcpu, 0);
 }
 
-- 
GitLab


From 8ecddaca7942a54316faf9de8214d12edb49c448 Mon Sep 17 00:00:00 2001
From: Halil Pasic <pasic@linux.ibm.com>
Date: Tue, 19 Oct 2021 19:54:00 +0200
Subject: [PATCH 0597/4878] KVM: s390: preserve deliverable_mask in
 __airqs_kick_single_vcpu

[ Upstream commit 0e9ff65f455dfd0a8aea5e7843678ab6fe097e21 ]

Changing the deliverable mask in __airqs_kick_single_vcpu() is a bug. If
one idle vcpu can't take the interrupts we want to deliver, we should
look for another vcpu that can, instead of saying that we don't want
to deliver these interrupts by clearing the bits from the
deliverable_mask.

Fixes: 9f30f6216378 ("KVM: s390: add gib_alert_irq_handler()")
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Michael Mueller <mimu@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20211019175401.3757927-3-pasic@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kvm/interrupt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 2bb9996ff09b4..e6c4f29fc6956 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -3053,13 +3053,14 @@ static void __airqs_kick_single_vcpu(struct kvm *kvm, u8 deliverable_mask)
 	int vcpu_idx, online_vcpus = atomic_read(&kvm->online_vcpus);
 	struct kvm_s390_gisa_interrupt *gi = &kvm->arch.gisa_int;
 	struct kvm_vcpu *vcpu;
+	u8 vcpu_isc_mask;
 
 	for_each_set_bit(vcpu_idx, kvm->arch.idle_mask, online_vcpus) {
 		vcpu = kvm_get_vcpu(kvm, vcpu_idx);
 		if (psw_ioint_disabled(vcpu))
 			continue;
-		deliverable_mask &= (u8)(vcpu->arch.sie_block->gcr[6] >> 24);
-		if (deliverable_mask) {
+		vcpu_isc_mask = (u8)(vcpu->arch.sie_block->gcr[6] >> 24);
+		if (deliverable_mask & vcpu_isc_mask) {
 			/* lately kicked but not yet running */
 			if (test_and_set_bit(vcpu_idx, gi->kicked_mask))
 				return;
-- 
GitLab


From acb8832f6a1ca53d0134246c889f6eb4010de6eb Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 15:28:41 +0900
Subject: [PATCH 0598/4878] scsi: ufs: ufs-exynos: Correct timeout value
 setting registers

[ Upstream commit 282da7cef078a87b6d5e8ceba8b17e428cf0e37c ]

PA_PWRMODEUSERDATA0 -> DL_FC0PROTTIMEOUTVAL
PA_PWRMODEUSERDATA1 -> DL_TC0REPLAYTIMEOUTVAL
PA_PWRMODEUSERDATA2 -> DL_AFC0REQTIMEOUTVAL

Link: https://lore.kernel.org/r/20211018062841.18226-1-chanho61.park@samsung.com
Fixes: a967ddb22d94 ("scsi: ufs: ufs-exynos: Apply vendor-specific values for three timeouts")
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufs-exynos.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 3f4f3d6f48f9f..0246ea99df7b3 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -654,9 +654,9 @@ static int exynos_ufs_pre_pwr_mode(struct ufs_hba *hba,
 	}
 
 	/* setting for three timeout values for traffic class #0 */
-	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA0), 8064);
-	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA1), 28224);
-	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA2), 20160);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(DL_FC0PROTTIMEOUTVAL), 8064);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(DL_TC0REPLAYTIMEOUTVAL), 28224);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(DL_AFC0REQTIMEOUTVAL), 20160);
 
 	return 0;
 out:
-- 
GitLab


From 7a4cf25d8329477b42b96c0c8c7a68036b4208b5 Mon Sep 17 00:00:00 2001
From: Chen Lu <181250012@smail.nju.edu.cn>
Date: Mon, 18 Oct 2021 13:22:38 +0800
Subject: [PATCH 0599/4878] riscv: fix misalgned trap vector base address

commit 64a19591a2938b170aa736443d5d3bf4c51e1388 upstream.

The trap vector marked by label .Lsecondary_park must align on a
4-byte boundary, as the {m,s}tvec is defined to require 4-byte
alignment.

Signed-off-by: Chen Lu <181250012@smail.nju.edu.cn>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Fixes: e011995e826f ("RISC-V: Move relocate and few other functions out of __init")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/kernel/head.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 7e849797c9c38..1a819c18bedec 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -175,6 +175,7 @@ setup_trap_vector:
 	csrw CSR_SCRATCH, zero
 	ret
 
+.align 2
 .Lsecondary_park:
 	/* We lack SMP support or have too many harts, so park this hart */
 	wfi
-- 
GitLab


From 6f416815c505ad1e0c2d0f5c7300e18ba16ad281 Mon Sep 17 00:00:00 2001
From: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Date: Fri, 29 Oct 2021 06:59:27 +0200
Subject: [PATCH 0600/4878] riscv: Fix asan-stack clang build

commit 54c5639d8f507ebefa814f574cb6f763033a72a5 upstream.

Nathan reported that because KASAN_SHADOW_OFFSET was not defined in
Kconfig, it prevents asan-stack from getting disabled with clang even
when CONFIG_KASAN_STACK is disabled: fix this by defining the
corresponding config.

Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Fixes: 8ad8b72721d0 ("riscv: Add KASAN support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/Kconfig             | 6 ++++++
 arch/riscv/include/asm/kasan.h | 3 +--
 arch/riscv/mm/kasan_init.c     | 3 +++
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index f7abd118d23d3..1b894c3275781 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -138,6 +138,12 @@ config PAGE_OFFSET
 	default 0xffffffff80000000 if 64BIT && MAXPHYSMEM_2GB
 	default 0xffffffe000000000 if 64BIT && MAXPHYSMEM_128GB
 
+config KASAN_SHADOW_OFFSET
+	hex
+	depends on KASAN_GENERIC
+	default 0xdfffffc800000000 if 64BIT
+	default 0xffffffff if 32BIT
+
 config ARCH_FLATMEM_ENABLE
 	def_bool y
 
diff --git a/arch/riscv/include/asm/kasan.h b/arch/riscv/include/asm/kasan.h
index b04028c6218c9..db10a64e3b981 100644
--- a/arch/riscv/include/asm/kasan.h
+++ b/arch/riscv/include/asm/kasan.h
@@ -14,8 +14,7 @@
 #define KASAN_SHADOW_START	KERN_VIRT_START /* 2^64 - 2^38 */
 #define KASAN_SHADOW_END	(KASAN_SHADOW_START + KASAN_SHADOW_SIZE)
 
-#define KASAN_SHADOW_OFFSET	(KASAN_SHADOW_END - (1ULL << \
-					(64 - KASAN_SHADOW_SCALE_SHIFT)))
+#define KASAN_SHADOW_OFFSET	_AC(CONFIG_KASAN_SHADOW_OFFSET, UL)
 
 void kasan_init(void);
 asmlinkage void kasan_early_init(void);
diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
index a8a2ffd9114aa..883c3be43ea98 100644
--- a/arch/riscv/mm/kasan_init.c
+++ b/arch/riscv/mm/kasan_init.c
@@ -16,6 +16,9 @@ asmlinkage void __init kasan_early_init(void)
 	uintptr_t i;
 	pgd_t *pgd = early_pg_dir + pgd_index(KASAN_SHADOW_START);
 
+	BUILD_BUG_ON(KASAN_SHADOW_OFFSET !=
+		KASAN_SHADOW_END - (1UL << (64 - KASAN_SHADOW_SCALE_SHIFT)));
+
 	for (i = 0; i < PTRS_PER_PTE; ++i)
 		set_pte(kasan_early_shadow_pte + i,
 			mk_pte(virt_to_page(kasan_early_shadow_page),
-- 
GitLab


From fbb91dadb512e8602c68ab6d5a049420aaebc55e Mon Sep 17 00:00:00 2001
From: Song Liu <songliubraving@fb.com>
Date: Sun, 3 Oct 2021 22:32:38 -0700
Subject: [PATCH 0601/4878] perf script: Check session->header.env.arch before
 using it

commit 29c77550eef31b0d72a45b49eeab03b8963264e8 upstream.

When perf.data is not written cleanly, we would like to process existing
data as much as possible (please see f_header.data.size == 0 condition
in perf_session__read_header). However, perf.data with partial data may
crash perf. Specifically, we see crash in 'perf script' for NULL
session->header.env.arch.

Fix this by checking session->header.env.arch before using it to determine
native_arch. Also split the if condition so it is easier to read.

Committer notes:

If it is a pipe, we already assume is a native arch, so no need to check
session->header.env.arch.

Signed-off-by: Song Liu <songliubraving@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-team@fb.com
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211004053238.514936-1-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/builtin-script.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 2bb159c105035..1d727387cb205 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3820,11 +3820,15 @@ int cmd_script(int argc, const char **argv)
 		goto out_delete;
 
 	uname(&uts);
-	if (data.is_pipe ||  /* assume pipe_mode indicates native_arch */
-	    !strcmp(uts.machine, session->header.env.arch) ||
-	    (!strcmp(uts.machine, "x86_64") &&
-	     !strcmp(session->header.env.arch, "i386")))
+	if (data.is_pipe) { /* Assume pipe_mode indicates native_arch */
 		native_arch = true;
+	} else if (session->header.env.arch) {
+		if (!strcmp(uts.machine, session->header.env.arch))
+			native_arch = true;
+		else if (!strcmp(uts.machine, "x86_64") &&
+			 !strcmp(session->header.env.arch, "i386"))
+			native_arch = true;
+	}
 
 	script.session = session;
 	script__setup_sample_type(&script);
-- 
GitLab


From 09df347cfd189774130f8ae8267324b97aaf868e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 2 Nov 2021 19:48:25 +0100
Subject: [PATCH 0602/4878] Linux 5.10.77

Link: https://lore.kernel.org/r/20211101082511.254155853@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 605bd943b224e..a58f49e415dc6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 76
+SUBLEVEL = 77
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 21b60b0671e3e35cd243737ffab5e617bda12cbd Mon Sep 17 00:00:00 2001
From: Carlos Llamas <cmllamas@google.com>
Date: Thu, 15 Jul 2021 03:18:03 +0000
Subject: [PATCH 0603/4878] UPSTREAM: binderfs: add support for feature files

Provide userspace with a mechanism to discover features supported by
the binder driver to refrain from using any unsupported ones in the
first place. Starting with "oneway_spam_detection" only new features
are to be listed under binderfs and all previous ones are assumed to
be supported.

Assuming an instance of binderfs has been mounted at /dev/binderfs,
binder feature files can be found under /dev/binderfs/features/.
Usage example:

  $ mkdir /dev/binderfs
  $ mount -t binder binder /dev/binderfs
  $ cat /dev/binderfs/features/oneway_spam_detection
  1

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20210715031805.1725878-1-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit fc470abf54b2bd6e539065e07905e767b443d719)
Bug: 191910201
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Change-Id: Ia5c03aa1881981bee26459e741134b83d5b59693
---
 drivers/android/binderfs.c | 39 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index 7b4f154f07e6c..346f315e8bd7e 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -58,6 +58,10 @@ enum binderfs_stats_mode {
 	binderfs_stats_mode_global,
 };
 
+struct binder_features {
+	bool oneway_spam_detection;
+};
+
 static const struct constant_table binderfs_param_stats[] = {
 	{ "global", binderfs_stats_mode_global },
 	{}
@@ -69,6 +73,10 @@ static const struct fs_parameter_spec binderfs_fs_parameters[] = {
 	{}
 };
 
+static struct binder_features binder_features = {
+	.oneway_spam_detection = true,
+};
+
 static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb)
 {
 	return sb->s_fs_info;
@@ -581,6 +589,33 @@ out:
 	return dentry;
 }
 
+static int binder_features_show(struct seq_file *m, void *unused)
+{
+	bool *feature = m->private;
+
+	seq_printf(m, "%d\n", *feature);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(binder_features);
+
+static int init_binder_features(struct super_block *sb)
+{
+	struct dentry *dentry, *dir;
+
+	dir = binderfs_create_dir(sb->s_root, "features");
+	if (IS_ERR(dir))
+		return PTR_ERR(dir);
+
+	dentry = binderfs_create_file(dir, "oneway_spam_detection",
+				      &binder_features_fops,
+				      &binder_features.oneway_spam_detection);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+
+	return 0;
+}
+
 static int init_binder_logs(struct super_block *sb)
 {
 	struct dentry *binder_logs_root_dir, *dentry, *proc_log_dir;
@@ -721,6 +756,10 @@ static int binderfs_fill_super(struct super_block *sb, struct fs_context *fc)
 			name++;
 	}
 
+	ret = init_binder_features(sb);
+	if (ret)
+		return ret;
+
 	if (info->mount_opts.stats_mode == binderfs_stats_mode_global)
 		return init_binder_logs(sb);
 
-- 
GitLab


From 28cbcfe380f224c26ab0baf3e405063262dca028 Mon Sep 17 00:00:00 2001
From: Carlos Llamas <cmllamas@google.com>
Date: Thu, 15 Jul 2021 03:18:04 +0000
Subject: [PATCH 0604/4878] UPSTREAM: docs: binderfs: add section about feature
 files

Document how binder feature files can be used to determine whether a
feature is supported by the binder driver. "oneway_spam_detection" is
used as an example as it is the first available feature file.

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20210715031805.1725878-2-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 06e1721d2a265d1247093f5ad5ae2958ef10a604)
Bug: 191910201
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Change-Id: I9c4542e0ee65dd94a492fe0440ba8f1a48d8b797
---
 Documentation/admin-guide/binderfs.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/admin-guide/binderfs.rst b/Documentation/admin-guide/binderfs.rst
index 8243af9b3510e..9919879dcba35 100644
--- a/Documentation/admin-guide/binderfs.rst
+++ b/Documentation/admin-guide/binderfs.rst
@@ -72,3 +72,16 @@ that the `rm() <rm_>`_ tool can be used to delete them. Note that the
 ``binder-control`` device cannot be deleted since this would make the binderfs
 instance unuseable.  The ``binder-control`` device will be deleted when the
 binderfs instance is unmounted and all references to it have been dropped.
+
+Binder features
+---------------
+
+Assuming an instance of binderfs has been mounted at ``/dev/binderfs``, the
+features supported by the binder driver can be located under
+``/dev/binderfs/features/``. The presence of individual files can be tested
+to determine whether a particular feature is supported by the driver.
+
+Example::
+
+        cat /dev/binderfs/features/oneway_spam_detection
+        1
-- 
GitLab


From 3edb9977490bbd2ff64d7a8d0bc90875b95e482c Mon Sep 17 00:00:00 2001
From: Carlos Llamas <cmllamas@google.com>
Date: Thu, 15 Jul 2021 03:18:05 +0000
Subject: [PATCH 0605/4878] UPSTREAM: selftests/binderfs: add test for feature
 files

Verify that feature files are created successfully after mounting a
binderfs instance. Note that only "oneway_spam_detection" feature is
tested with this patch as it is currently the only feature listed.

Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20210715031805.1725878-3-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 07e913418ce4ba5eb620dd4668bf91ec94e11136)
Bug: 191910201
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Change-Id: I86d7ef34b3099c8714c319e48029aaf3dbf87081
---
 .../filesystems/binderfs/binderfs_test.c        | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
index 477cbb042f5ba..0315955ff0f41 100644
--- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
+++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
@@ -62,6 +62,9 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
 	struct binder_version version = { 0 };
 	char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
 		device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
+	static const char * const binder_features[] = {
+		"oneway_spam_detection",
+	};
 
 	change_mountns(_metadata);
 
@@ -150,6 +153,20 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
 	}
 
 	/* success: binder-control device removal failed as expected */
+
+	for (int i = 0; i < ARRAY_SIZE(binder_features); i++) {
+		snprintf(device_path, sizeof(device_path), "%s/features/%s",
+			 binderfs_mntpt, binder_features[i]);
+		fd = open(device_path, O_CLOEXEC | O_RDONLY);
+		EXPECT_GE(fd, 0) {
+			TH_LOG("%s - Failed to open binder feature: %s",
+				strerror(errno), binder_features[i]);
+			goto umount;
+		}
+		close(fd);
+	}
+
+	/* success: binder feature files found */
 	result = 0;
 
 umount:
-- 
GitLab


From fe4b8d3c687efcf27064e472730291edbd81dad6 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Tue, 2 Nov 2021 14:50:17 -0700
Subject: [PATCH 0606/4878] ANDROID: fips140: add service indicators

To satisfy the FIPS 140-3 "service indicators" requirement, add a
function which checks whether the given algorithm is "approved" or not.

Note that this function is a bit different from the module's other APIs
in that it is an exported symbol rather than a registration-based API.
This avoids needing to make kernel/KMI changes, so I think we should do
it this way if possible, given that it's unlikely this function will be
used in practice outside of the lab test.  Built-in code can still call
this function via symbol_get() if it really wants to.

Bug: 188620248
Change-Id: I26c976258fa9446b34eb189bba7154142d85da16
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-module.c | 99 +++++++++++++++++++++++++++++------------
 crypto/fips140-module.h |  2 +
 2 files changed, 72 insertions(+), 29 deletions(-)

diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 951fc8ea82555..79b09b0704632 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -14,6 +14,8 @@
  * don't need to meet these requirements.
  */
 
+#undef __DISABLE_EXPORTS
+
 #include <linux/ctype.h>
 #include <linux/module.h>
 #include <crypto/aead.h>
@@ -86,34 +88,37 @@ const u8 *__rodata_start = &__fips140_rodata_start;
  * When adding a new algorithm here, make sure to consider whether it needs a
  * self-test added to fips140_selftests[] as well.
  */
-static const char * const fips140_algorithms[] __initconst = {
-	"aes",
-
-	"cmac(aes)",
-	"ecb(aes)",
-
-	"cbc(aes)",
-	"cts(cbc(aes))",
-	"ctr(aes)",
-	"xts(aes)",
-	"gcm(aes)",
-
-	"hmac(sha1)",
-	"hmac(sha224)",
-	"hmac(sha256)",
-	"hmac(sha384)",
-	"hmac(sha512)",
-	"sha1",
-	"sha224",
-	"sha256",
-	"sha384",
-	"sha512",
-
-	"stdrng",
-	"jitterentropy_rng",
+static const struct {
+	const char *name;
+	bool approved;
+} fips140_algs_to_replace[] = {
+	{"aes", true},
+
+	{"cmac(aes)", true},
+	{"ecb(aes)", true},
+
+	{"cbc(aes)", true},
+	{"cts(cbc(aes))", true},
+	{"ctr(aes)", true},
+	{"xts(aes)", true},
+	{"gcm(aes)", false},
+
+	{"hmac(sha1)", true},
+	{"hmac(sha224)", true},
+	{"hmac(sha256)", true},
+	{"hmac(sha384)", true},
+	{"hmac(sha512)", true},
+	{"sha1", true},
+	{"sha224", true},
+	{"sha256", true},
+	{"sha384", true},
+	{"sha512", true},
+
+	{"stdrng", true},
+	{"jitterentropy_rng", false},
 };
 
-static bool __init is_fips140_algo(struct crypto_alg *alg)
+static bool __init fips140_should_unregister_alg(struct crypto_alg *alg)
 {
 	int i;
 
@@ -124,11 +129,47 @@ static bool __init is_fips140_algo(struct crypto_alg *alg)
 	if (alg->cra_flags & CRYPTO_ALG_ASYNC)
 		return false;
 
-	for (i = 0; i < ARRAY_SIZE(fips140_algorithms); i++)
-		if (!strcmp(alg->cra_name, fips140_algorithms[i]))
+	for (i = 0; i < ARRAY_SIZE(fips140_algs_to_replace); i++) {
+		if (!strcmp(alg->cra_name, fips140_algs_to_replace[i].name))
 			return true;
+	}
+	return false;
+}
+
+/*
+ * FIPS 140-3 service indicators.  FIPS 140-3 requires that all services
+ * "provide an indicator when the service utilises an approved cryptographic
+ * algorithm, security function or process in an approved manner".  What this
+ * means is very debatable, even with the help of the FIPS 140-3 Implementation
+ * Guidance document.  However, it was decided that a function that takes in an
+ * algorithm name and returns whether that algorithm is approved or not will
+ * meet this requirement.  Note, this relies on some properties of the module:
+ *
+ *   - The module doesn't distinguish between "services" and "algorithms"; its
+ *     services are simply its algorithms.
+ *
+ *   - The status of an approved algorithm is never non-approved, since (a) the
+ *     module doesn't support operating in a non-approved mode, such as a mode
+ *     where the self-tests are skipped; (b) there are no cases where the module
+ *     supports non-approved settings for approved algorithms, e.g.
+ *     non-approved key sizes; and (c) this function isn't available to be
+ *     called until the module_init function has completed, so it's guaranteed
+ *     that the self-tests and integrity check have already passed.
+ *
+ *   - The module does support some non-approved algorithms, so a single static
+ *     indicator ("return true;") would not be acceptable.
+ */
+bool fips140_is_approved_service(const char *name)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(fips140_algs_to_replace); i++) {
+		if (!strcmp(name, fips140_algs_to_replace[i].name))
+			return fips140_algs_to_replace[i].approved;
+	}
 	return false;
 }
+EXPORT_SYMBOL_GPL(fips140_is_approved_service);
 
 static LIST_HEAD(existing_live_algos);
 
@@ -180,7 +221,7 @@ static void __init unregister_existing_fips140_algos(void)
 	 * that new users won't use them.
 	 */
 	list_for_each_entry_safe(alg, tmp, &crypto_alg_list, cra_list) {
-		if (!is_fips140_algo(alg))
+		if (!fips140_should_unregister_alg(alg))
 			continue;
 		if (refcount_read(&alg->cra_refcnt) == 1) {
 			/*
diff --git a/crypto/fips140-module.h b/crypto/fips140-module.h
index f33580cf7bf8b..a01d6c5c1049e 100644
--- a/crypto/fips140-module.h
+++ b/crypto/fips140-module.h
@@ -21,4 +21,6 @@ extern struct task_struct *fips140_init_thread;
 
 bool __init __must_check fips140_run_selftests(void);
 
+bool fips140_is_approved_service(const char *name);
+
 #endif /* _CRYPTO_FIPS140_MODULE_H */
-- 
GitLab


From 2888f960d09f3af00d1e45f1facd311ccd5b778a Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Tue, 2 Nov 2021 14:50:18 -0700
Subject: [PATCH 0607/4878] ANDROID: fips140: add name and version, and a
 function to retrieve them

This is needed to meet a FIPS 140-3 requirement that modules provide a
service that retrieves their name and versioning information.

Bug: 188620248
Change-Id: I36049c839c4217e3616daab52ec536b46479c12a
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-module.c | 23 ++++++++++++++++++++++-
 crypto/fips140-module.h |  9 +++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 79b09b0704632..5e42891fbd0d3 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -171,6 +171,27 @@ bool fips140_is_approved_service(const char *name)
 }
 EXPORT_SYMBOL_GPL(fips140_is_approved_service);
 
+/*
+ * FIPS 140-3 requires that modules provide a "service" that outputs "the name
+ * or module identifier and the versioning information that can be correlated
+ * with a validation record".  This function meets that requirement.
+ *
+ * Note: the module also prints this same information to the kernel log when it
+ * is loaded.  That might meet the requirement by itself.  However, given the
+ * vagueness of what counts as a "service", we provide this function too, just
+ * in case the certification lab or CMVP is happier with an explicit function.
+ *
+ * Note: /sys/modules/fips140/scmversion also provides versioning information
+ * about the module.  However that file just shows the bare git commit ID, so it
+ * probably isn't sufficient to meet the FIPS requirement, which seems to want
+ * the "official" module name and version number used in the FIPS certificate.
+ */
+const char *fips140_module_version(void)
+{
+	return FIPS140_MODULE_NAME " " FIPS140_MODULE_VERSION;
+}
+EXPORT_SYMBOL_GPL(fips140_module_version);
+
 static LIST_HEAD(existing_live_algos);
 
 /*
@@ -478,7 +499,7 @@ fips140_init(void)
 {
 	const u32 *initcall;
 
-	pr_info("loading module\n");
+	pr_info("loading " FIPS140_MODULE_NAME " " FIPS140_MODULE_VERSION "\n");
 	fips140_init_thread = current;
 
 	unregister_existing_fips140_algos();
diff --git a/crypto/fips140-module.h b/crypto/fips140-module.h
index a01d6c5c1049e..ff99d5b2ab4a1 100644
--- a/crypto/fips140-module.h
+++ b/crypto/fips140-module.h
@@ -12,6 +12,14 @@
 #undef pr_fmt
 #define pr_fmt(fmt) "fips140: " fmt
 
+/*
+ * This is the name and version number of the module that are shown on the FIPS
+ * certificate.  These don't necessarily have any relation to the filename of
+ * the .ko file, or to the git branch or commit ID.
+ */
+#define FIPS140_MODULE_NAME "Android Kernel Cryptographic Module"
+#define FIPS140_MODULE_VERSION "v1.0"
+
 #ifdef CONFIG_CRYPTO_FIPS140_MOD_ERROR_INJECTION
 extern char *fips140_broken_alg;
 #endif
@@ -22,5 +30,6 @@ extern struct task_struct *fips140_init_thread;
 bool __init __must_check fips140_run_selftests(void);
 
 bool fips140_is_approved_service(const char *name);
+const char *fips140_module_version(void);
 
 #endif /* _CRYPTO_FIPS140_MODULE_H */
-- 
GitLab


From 1d32a8db58e1e516dd5d6d0a7173804becf2a857 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Wed, 3 Nov 2021 15:04:35 +0000
Subject: [PATCH 0608/4878] ANDROID: Revert "FROMLIST: KVM: arm64: Allow KVM to
 be disabled from the command line"

This reverts commit 5b63fb56a85c960aaf0aab6c1eec47bf3df94bf9.

This conflicts with the upstream version, so revert it in favour of the
latter.

Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I54453c68247bcc1b8444994136e968b55c06d342
---
 Documentation/admin-guide/kernel-parameters.txt |  3 ---
 arch/arm64/include/asm/kvm_host.h               |  1 -
 arch/arm64/kernel/idreg-override.c              |  1 -
 arch/arm64/kvm/arm.c                            | 14 +-------------
 4 files changed, 1 insertion(+), 18 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 69804b20833fb..4223a4ba2ea00 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2302,9 +2302,6 @@
 	kvm-arm.mode=
 			[KVM,ARM] Select one of KVM/arm64's modes of operation.
 
-			none: Forcefully disable KVM and run in nVHE mode,
-			      preventing KVM from ever initialising.
-
 			nvhe: Standard nVHE-based mode, without support for
 			      protected guests.
 
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index d276bc897ad92..b45ae346301a0 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -59,7 +59,6 @@
 enum kvm_mode {
 	KVM_MODE_DEFAULT,
 	KVM_MODE_PROTECTED,
-	KVM_MODE_NONE,
 };
 enum kvm_mode kvm_get_mode(void);
 
diff --git a/arch/arm64/kernel/idreg-override.c b/arch/arm64/kernel/idreg-override.c
index 3ef853a792f3f..f2f6f4150bdc6 100644
--- a/arch/arm64/kernel/idreg-override.c
+++ b/arch/arm64/kernel/idreg-override.c
@@ -94,7 +94,6 @@ static const struct {
 	char	alias[FTR_ALIAS_NAME_LEN];
 	char	feature[FTR_ALIAS_OPTION_LEN];
 } aliases[] __initconst = {
-	{ "kvm-arm.mode=none",		"id_aa64mmfr1.vh=0" },
 	{ "kvm-arm.mode=nvhe",		"id_aa64mmfr1.vh=0" },
 	{ "kvm-arm.mode=protected",	"id_aa64mmfr1.vh=0" },
 	{ "arm64.nobti",		"id_aa64pfr1.bt=0" },
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index d0688ceaccf06..de81ec8df665a 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -2046,11 +2046,6 @@ int kvm_arch_init(void *opaque)
 		return -ENODEV;
 	}
 
-	if (kvm_get_mode() == KVM_MODE_NONE) {
-		kvm_info("KVM disabled from command line\n");
-		return -ENODEV;
-	}
-
 	in_hyp_mode = is_kernel_in_hyp_mode();
 
 	if (cpus_have_final_cap(ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE) ||
@@ -2124,15 +2119,8 @@ static int __init early_kvm_mode_cfg(char *arg)
 		return 0;
 	}
 
-	if (strcmp(arg, "nvhe") == 0 && !WARN_ON(is_kernel_in_hyp_mode())) {
-		kvm_mode = KVM_MODE_DEFAULT;
+	if (strcmp(arg, "nvhe") == 0 && !WARN_ON(is_kernel_in_hyp_mode()))
 		return 0;
-	}
-
-	if (strcmp(arg, "none") == 0 && !WARN_ON(is_kernel_in_hyp_mode())) {
-		kvm_mode = KVM_MODE_NONE;
-		return 0;
-	}
 
 	return -EINVAL;
 }
-- 
GitLab


From 591190d98ad230bbbae3fa6aa7b6c050ef126605 Mon Sep 17 00:00:00 2001
From: Hector Martin <marcan@marcan.st>
Date: Mon, 1 Mar 2021 12:36:24 +0900
Subject: [PATCH 0609/4878] BACKPORT: arm64: Move ICH_ sysreg bits from
 arm-gic-v3.h to sysreg.h

These definitions are in arm-gic-v3.h for historical reasons which no
longer apply. Move them to sysreg.h so the AIC driver can use them, as
it needs to peek into vGIC registers to deal with the GIC maintentance
interrupt.

Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
(cherry picked from commit 8a657f71705f9f9c2bf8308e2cfd57b9f329e0d9)
[willdeacon@: Resolved context conflict with backport of
              ARM64_FEATURE_MASK() macro]
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I02fac25baa6db9920c6b245925e2114b162b7991
---
 arch/arm64/include/asm/sysreg.h    | 59 ++++++++++++++++++++++++++++++
 include/linux/irqchip/arm-gic-v3.h | 56 ----------------------------
 2 files changed, 59 insertions(+), 56 deletions(-)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 6a7b689e6bbe1..b57c41a80f237 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -1099,6 +1099,65 @@
 #define TRFCR_ELx_ExTRE			BIT(1)
 #define TRFCR_ELx_E0TRE			BIT(0)
 
+/* GIC Hypervisor interface registers */
+/* ICH_MISR_EL2 bit definitions */
+#define ICH_MISR_EOI		(1 << 0)
+#define ICH_MISR_U		(1 << 1)
+
+/* ICH_LR*_EL2 bit definitions */
+#define ICH_LR_VIRTUAL_ID_MASK	((1ULL << 32) - 1)
+
+#define ICH_LR_EOI		(1ULL << 41)
+#define ICH_LR_GROUP		(1ULL << 60)
+#define ICH_LR_HW		(1ULL << 61)
+#define ICH_LR_STATE		(3ULL << 62)
+#define ICH_LR_PENDING_BIT	(1ULL << 62)
+#define ICH_LR_ACTIVE_BIT	(1ULL << 63)
+#define ICH_LR_PHYS_ID_SHIFT	32
+#define ICH_LR_PHYS_ID_MASK	(0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
+#define ICH_LR_PRIORITY_SHIFT	48
+#define ICH_LR_PRIORITY_MASK	(0xffULL << ICH_LR_PRIORITY_SHIFT)
+
+/* ICH_HCR_EL2 bit definitions */
+#define ICH_HCR_EN		(1 << 0)
+#define ICH_HCR_UIE		(1 << 1)
+#define ICH_HCR_NPIE		(1 << 3)
+#define ICH_HCR_TC		(1 << 10)
+#define ICH_HCR_TALL0		(1 << 11)
+#define ICH_HCR_TALL1		(1 << 12)
+#define ICH_HCR_EOIcount_SHIFT	27
+#define ICH_HCR_EOIcount_MASK	(0x1f << ICH_HCR_EOIcount_SHIFT)
+
+/* ICH_VMCR_EL2 bit definitions */
+#define ICH_VMCR_ACK_CTL_SHIFT	2
+#define ICH_VMCR_ACK_CTL_MASK	(1 << ICH_VMCR_ACK_CTL_SHIFT)
+#define ICH_VMCR_FIQ_EN_SHIFT	3
+#define ICH_VMCR_FIQ_EN_MASK	(1 << ICH_VMCR_FIQ_EN_SHIFT)
+#define ICH_VMCR_CBPR_SHIFT	4
+#define ICH_VMCR_CBPR_MASK	(1 << ICH_VMCR_CBPR_SHIFT)
+#define ICH_VMCR_EOIM_SHIFT	9
+#define ICH_VMCR_EOIM_MASK	(1 << ICH_VMCR_EOIM_SHIFT)
+#define ICH_VMCR_BPR1_SHIFT	18
+#define ICH_VMCR_BPR1_MASK	(7 << ICH_VMCR_BPR1_SHIFT)
+#define ICH_VMCR_BPR0_SHIFT	21
+#define ICH_VMCR_BPR0_MASK	(7 << ICH_VMCR_BPR0_SHIFT)
+#define ICH_VMCR_PMR_SHIFT	24
+#define ICH_VMCR_PMR_MASK	(0xffUL << ICH_VMCR_PMR_SHIFT)
+#define ICH_VMCR_ENG0_SHIFT	0
+#define ICH_VMCR_ENG0_MASK	(1 << ICH_VMCR_ENG0_SHIFT)
+#define ICH_VMCR_ENG1_SHIFT	1
+#define ICH_VMCR_ENG1_MASK	(1 << ICH_VMCR_ENG1_SHIFT)
+
+/* ICH_VTR_EL2 bit definitions */
+#define ICH_VTR_PRI_BITS_SHIFT	29
+#define ICH_VTR_PRI_BITS_MASK	(7 << ICH_VTR_PRI_BITS_SHIFT)
+#define ICH_VTR_ID_BITS_SHIFT	23
+#define ICH_VTR_ID_BITS_MASK	(7 << ICH_VTR_ID_BITS_SHIFT)
+#define ICH_VTR_SEIS_SHIFT	22
+#define ICH_VTR_SEIS_MASK	(1 << ICH_VTR_SEIS_SHIFT)
+#define ICH_VTR_A3V_SHIFT	21
+#define ICH_VTR_A3V_MASK	(1 << ICH_VTR_A3V_SHIFT)
+
 #define ARM64_FEATURE_FIELD_BITS	4
 
 /* Create a mask for the feature bits of the specified feature. */
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 43348c487c8e4..ef67c56081a4a 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -575,67 +575,11 @@
 #define ICC_SRE_EL1_DFB			(1U << 1)
 #define ICC_SRE_EL1_SRE			(1U << 0)
 
-/*
- * Hypervisor interface registers (SRE only)
- */
-#define ICH_LR_VIRTUAL_ID_MASK		((1ULL << 32) - 1)
-
-#define ICH_LR_EOI			(1ULL << 41)
-#define ICH_LR_GROUP			(1ULL << 60)
-#define ICH_LR_HW			(1ULL << 61)
-#define ICH_LR_STATE			(3ULL << 62)
-#define ICH_LR_PENDING_BIT		(1ULL << 62)
-#define ICH_LR_ACTIVE_BIT		(1ULL << 63)
-#define ICH_LR_PHYS_ID_SHIFT		32
-#define ICH_LR_PHYS_ID_MASK		(0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
-#define ICH_LR_PRIORITY_SHIFT		48
-#define ICH_LR_PRIORITY_MASK		(0xffULL << ICH_LR_PRIORITY_SHIFT)
-
 /* These are for GICv2 emulation only */
 #define GICH_LR_VIRTUALID		(0x3ffUL << 0)
 #define GICH_LR_PHYSID_CPUID_SHIFT	(10)
 #define GICH_LR_PHYSID_CPUID		(7UL << GICH_LR_PHYSID_CPUID_SHIFT)
 
-#define ICH_MISR_EOI			(1 << 0)
-#define ICH_MISR_U			(1 << 1)
-
-#define ICH_HCR_EN			(1 << 0)
-#define ICH_HCR_UIE			(1 << 1)
-#define ICH_HCR_NPIE			(1 << 3)
-#define ICH_HCR_TC			(1 << 10)
-#define ICH_HCR_TALL0			(1 << 11)
-#define ICH_HCR_TALL1			(1 << 12)
-#define ICH_HCR_EOIcount_SHIFT		27
-#define ICH_HCR_EOIcount_MASK		(0x1f << ICH_HCR_EOIcount_SHIFT)
-
-#define ICH_VMCR_ACK_CTL_SHIFT		2
-#define ICH_VMCR_ACK_CTL_MASK		(1 << ICH_VMCR_ACK_CTL_SHIFT)
-#define ICH_VMCR_FIQ_EN_SHIFT		3
-#define ICH_VMCR_FIQ_EN_MASK		(1 << ICH_VMCR_FIQ_EN_SHIFT)
-#define ICH_VMCR_CBPR_SHIFT		4
-#define ICH_VMCR_CBPR_MASK		(1 << ICH_VMCR_CBPR_SHIFT)
-#define ICH_VMCR_EOIM_SHIFT		9
-#define ICH_VMCR_EOIM_MASK		(1 << ICH_VMCR_EOIM_SHIFT)
-#define ICH_VMCR_BPR1_SHIFT		18
-#define ICH_VMCR_BPR1_MASK		(7 << ICH_VMCR_BPR1_SHIFT)
-#define ICH_VMCR_BPR0_SHIFT		21
-#define ICH_VMCR_BPR0_MASK		(7 << ICH_VMCR_BPR0_SHIFT)
-#define ICH_VMCR_PMR_SHIFT		24
-#define ICH_VMCR_PMR_MASK		(0xffUL << ICH_VMCR_PMR_SHIFT)
-#define ICH_VMCR_ENG0_SHIFT		0
-#define ICH_VMCR_ENG0_MASK		(1 << ICH_VMCR_ENG0_SHIFT)
-#define ICH_VMCR_ENG1_SHIFT		1
-#define ICH_VMCR_ENG1_MASK		(1 << ICH_VMCR_ENG1_SHIFT)
-
-#define ICH_VTR_PRI_BITS_SHIFT		29
-#define ICH_VTR_PRI_BITS_MASK		(7 << ICH_VTR_PRI_BITS_SHIFT)
-#define ICH_VTR_ID_BITS_SHIFT		23
-#define ICH_VTR_ID_BITS_MASK		(7 << ICH_VTR_ID_BITS_SHIFT)
-#define ICH_VTR_SEIS_SHIFT		22
-#define ICH_VTR_SEIS_MASK		(1 << ICH_VTR_SEIS_SHIFT)
-#define ICH_VTR_A3V_SHIFT		21
-#define ICH_VTR_A3V_MASK		(1 << ICH_VTR_A3V_SHIFT)
-
 #define ICC_IAR1_EL1_SPURIOUS		0x3ff
 
 #define ICC_SRE_EL2_SRE			(1 << 0)
-- 
GitLab


From ae9bcd230cd2f03533044131b8cf8925d73eef4d Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 8 Oct 2021 14:58:34 +0100
Subject: [PATCH 0610/4878] UPSTREAM: KVM: arm64: Turn __KVM_HOST_SMCCC_FUNC_*
 into an enum (mostly)

__KVM_HOST_SMCCC_FUNC_* is a royal pain, as there is a fair amount
of churn around these #defines, and we avoid making it an enum
only for the sake of the early init, low level code that requires
__KVM_HOST_SMCCC_FUNC___kvm_hyp_init to be usable from assembly.

Let's be brave and turn everything but this symbol into an enum,
using a bit of arithmetic to avoid any overlap.

Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/877depq9gw.wl-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-2-will@kernel.org
(cherry picked from commit a78738ed1d9bf40d09109599b884508c69d188b8)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4cad5753673fb3959ce230e0a8cb9f5e3ab16877
---
 arch/arm64/include/asm/kvm_asm.h | 44 +++++++++++++++++---------------
 1 file changed, 24 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 899f7291083fd..b38016b561b54 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -43,31 +43,35 @@
 #define KVM_HOST_SMCCC_FUNC(name) KVM_HOST_SMCCC_ID(__KVM_HOST_SMCCC_FUNC_##name)
 
 #define __KVM_HOST_SMCCC_FUNC___kvm_hyp_init			0
-#define __KVM_HOST_SMCCC_FUNC___kvm_vcpu_run			1
-#define __KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context		2
-#define __KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid_ipa		3
-#define __KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid		4
-#define __KVM_HOST_SMCCC_FUNC___kvm_flush_cpu_context		5
-#define __KVM_HOST_SMCCC_FUNC___kvm_timer_set_cntvoff		6
-#define __KVM_HOST_SMCCC_FUNC___kvm_enable_ssbs			7
-#define __KVM_HOST_SMCCC_FUNC___vgic_v3_get_gic_config		8
-#define __KVM_HOST_SMCCC_FUNC___vgic_v3_read_vmcr		9
-#define __KVM_HOST_SMCCC_FUNC___vgic_v3_write_vmcr		10
-#define __KVM_HOST_SMCCC_FUNC___vgic_v3_init_lrs		11
-#define __KVM_HOST_SMCCC_FUNC___kvm_get_mdcr_el2		12
-#define __KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs		13
-#define __KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs		14
-#define __KVM_HOST_SMCCC_FUNC___pkvm_init			15
-#define __KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp		16
-#define __KVM_HOST_SMCCC_FUNC___pkvm_create_private_mapping	17
-#define __KVM_HOST_SMCCC_FUNC___pkvm_cpu_set_vector		18
-#define __KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize		19
-#define __KVM_HOST_SMCCC_FUNC___kvm_adjust_pc			20
 
 #ifndef __ASSEMBLY__
 
 #include <linux/mm.h>
 
+enum __kvm_host_smccc_func {
+	/* __KVM_HOST_SMCCC_FUNC___kvm_hyp_init */
+	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run = __KVM_HOST_SMCCC_FUNC___kvm_hyp_init + 1,
+	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
+	__KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid_ipa,
+	__KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid,
+	__KVM_HOST_SMCCC_FUNC___kvm_flush_cpu_context,
+	__KVM_HOST_SMCCC_FUNC___kvm_timer_set_cntvoff,
+	__KVM_HOST_SMCCC_FUNC___kvm_enable_ssbs,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_get_gic_config,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_read_vmcr,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_write_vmcr,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_init_lrs,
+	__KVM_HOST_SMCCC_FUNC___kvm_get_mdcr_el2,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs,
+	__KVM_HOST_SMCCC_FUNC___pkvm_init,
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
+	__KVM_HOST_SMCCC_FUNC___pkvm_create_private_mapping,
+	__KVM_HOST_SMCCC_FUNC___pkvm_cpu_set_vector,
+	__KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize,
+	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
+};
+
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
 #define DECLARE_KVM_NVHE_SYM(sym)	extern char kvm_nvhe_sym(sym)[]
 
-- 
GitLab


From 78b51c6f5778f49c850b99ee89b1621581b7541e Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 8 Oct 2021 14:58:35 +0100
Subject: [PATCH 0611/4878] UPSTREAM: arm64: Prevent kexec and hibernation if
 is_protected_kvm_enabled()

When pKVM is enabled, the hypervisor code at EL2 and its data structures
are inaccessible to the host kernel and cannot be torn down or replaced
as this would defeat the integrity properies which pKVM aims to provide.
Furthermore, the ABI between the host and EL2 is flexible and private to
whatever the current implementation of KVM requires and so booting a new
kernel with an old EL2 component is very likely to end in disaster.

In preparation for uninstalling the hyp stub calls which are relied upon
to reset EL2, disable kexec and hibernation in the host when protected
KVM is enabled.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-3-will@kernel.org
(cherry picked from commit 8f4566f18db5d1257fc2d5442e16274424a529c1)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib85048668b185268dc95374f74b0b5bfa65fc33f
---
 arch/arm64/kernel/smp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 92a1bbb9f3196..fd9c0ce1b6457 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -1145,7 +1145,8 @@ bool cpus_are_stuck_in_kernel(void)
 {
 	bool smp_spin_tables = (num_possible_cpus() > 1 && !have_cpu_die());
 
-	return !!cpus_stuck_in_kernel || smp_spin_tables;
+	return !!cpus_stuck_in_kernel || smp_spin_tables ||
+		is_protected_kvm_enabled();
 }
 
 int nr_ipi_get(void)
-- 
GitLab


From 12f0397b3f39bb7baef0c59f58891c3996b52c5d Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 8 Oct 2021 14:58:36 +0100
Subject: [PATCH 0612/4878] UPSTREAM: KVM: arm64: Reject stub hypercalls after
 pKVM has been initialised

The stub hypercalls provide mechanisms to reset and replace the EL2 code,
so uninstall them once pKVM has been initialised in order to ensure the
integrity of the hypervisor code.

To ensure pKVM initialisation remains functional, split cpu_hyp_reinit()
into two helper functions to separate usage of the stub from usage of
pkvm hypercalls either side of __pkvm_init on the boot CPU.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-4-will@kernel.org
(cherry picked from commit 8579a185bacaa64c65e43e251ceede2f7600f7e2)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6ad3affee8119fb312be91c2e6555103d12089cd
---
 arch/arm64/kvm/arm.c           | 31 +++++++++++++++++++++++--------
 arch/arm64/kvm/hyp/nvhe/host.S | 26 +++++++++++++++++---------
 2 files changed, 40 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index de81ec8df665a..85686b3e4b9e4 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1561,25 +1561,33 @@ static void cpu_set_hyp_vector(void)
 		kvm_call_hyp_nvhe(__pkvm_cpu_set_vector, data->slot);
 }
 
-static void cpu_hyp_reinit(void)
+static void cpu_hyp_init_context(void)
 {
 	kvm_init_host_cpu_context(&this_cpu_ptr_hyp_sym(kvm_host_data)->host_ctxt);
 
-	cpu_hyp_reset();
-
-	if (is_kernel_in_hyp_mode())
-		kvm_timer_init_vhe();
-	else
+	if (!is_kernel_in_hyp_mode())
 		cpu_init_hyp_mode();
+}
 
+static void cpu_hyp_init_features(void)
+{
 	cpu_set_hyp_vector();
-
 	kvm_arm_init_debug();
 
+	if (is_kernel_in_hyp_mode())
+		kvm_timer_init_vhe();
+
 	if (vgic_present)
 		kvm_vgic_init_cpu_hardware();
 }
 
+static void cpu_hyp_reinit(void)
+{
+	cpu_hyp_reset();
+	cpu_hyp_init_context();
+	cpu_hyp_init_features();
+}
+
 static void _kvm_arch_hardware_enable(void *discard)
 {
 	if (!__this_cpu_read(kvm_arm_hardware_enabled)) {
@@ -1770,10 +1778,17 @@ static int do_pkvm_init(u32 hyp_va_bits)
 	int ret;
 
 	preempt_disable();
-	hyp_install_host_vector();
+	cpu_hyp_init_context();
 	ret = kvm_call_hyp_nvhe(__pkvm_init, hyp_mem_base, hyp_mem_size,
 				num_possible_cpus(), kern_hyp_va(per_cpu_base),
 				hyp_va_bits);
+	cpu_hyp_init_features();
+
+	/*
+	 * The stub hypercalls are now disabled, so set our local flag to
+	 * prevent a later re-init attempt in kvm_arch_hardware_enable().
+	 */
+	__this_cpu_write(kvm_arm_hardware_enabled, 1);
 	preempt_enable();
 
 	return ret;
diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S
index 7c2bf71596305..537c8db4d5510 100644
--- a/arch/arm64/kvm/hyp/nvhe/host.S
+++ b/arch/arm64/kvm/hyp/nvhe/host.S
@@ -110,17 +110,14 @@ SYM_FUNC_START(__hyp_do_panic)
 	b	__host_enter_for_panic
 SYM_FUNC_END(__hyp_do_panic)
 
-.macro host_el1_sync_vect
-	.align 7
-.L__vect_start\@:
-	stp	x0, x1, [sp, #-16]!
-	mrs	x0, esr_el2
-	lsr	x0, x0, #ESR_ELx_EC_SHIFT
-	cmp	x0, #ESR_ELx_EC_HVC64
-	b.ne	__host_exit
-
+SYM_FUNC_START(__host_hvc)
 	ldp	x0, x1, [sp]		// Don't fixup the stack yet
 
+	/* No stub for you, sonny Jim */
+alternative_if ARM64_KVM_PROTECTED_MODE
+	b	__host_exit
+alternative_else_nop_endif
+
 	/* Check for a stub HVC call */
 	cmp	x0, #HVC_STUB_HCALL_NR
 	b.hs	__host_exit
@@ -137,6 +134,17 @@ SYM_FUNC_END(__hyp_do_panic)
 	ldr	x5, =__kvm_handle_stub_hvc
 	hyp_pa	x5, x6
 	br	x5
+SYM_FUNC_END(__host_hvc)
+
+.macro host_el1_sync_vect
+	.align 7
+.L__vect_start\@:
+	stp	x0, x1, [sp, #-16]!
+	mrs	x0, esr_el2
+	lsr	x0, x0, #ESR_ELx_EC_SHIFT
+	cmp	x0, #ESR_ELx_EC_HVC64
+	b.eq	__host_hvc
+	b	__host_exit
 .L__vect_end\@:
 .if ((.L__vect_end\@ - .L__vect_start\@) > 0x80)
 	.error "host_el1_sync_vect larger than vector entry"
-- 
GitLab


From 35aeb981163b2872064c51f9ae0309d45fc9aa66 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 8 Oct 2021 14:58:37 +0100
Subject: [PATCH 0613/4878] UPSTREAM: KVM: arm64: Propagate errors from
 __pkvm_prot_finalize hypercall

If the __pkvm_prot_finalize hypercall returns an error, we WARN but fail
to propagate the failure code back to kvm_arch_init().

Pass a pointer to a zero-initialised return variable so that failure
to finalise the pKVM protections on a host CPU can be reported back to
KVM.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-5-will@kernel.org
(cherry picked from commit 2f2e1a5069679491d18cf9021da19b40c56a17f3)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I83610a95046341a7429e09ead03ed08b87e0873a
---
 arch/arm64/kvm/arm.c | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 85686b3e4b9e4..80fccd599344d 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1968,9 +1968,25 @@ out_err:
 	return err;
 }
 
-static void _kvm_host_prot_finalize(void *discard)
+static void _kvm_host_prot_finalize(void *arg)
 {
-	WARN_ON(kvm_call_hyp_nvhe(__pkvm_prot_finalize));
+	int *err = arg;
+
+	if (WARN_ON(kvm_call_hyp_nvhe(__pkvm_prot_finalize)))
+		WRITE_ONCE(*err, -EINVAL);
+}
+
+static int pkvm_drop_host_privileges(void)
+{
+	int ret = 0;
+
+	/*
+	 * Flip the static key upfront as that may no longer be possible
+	 * once the host stage 2 is installed.
+	 */
+	static_branch_enable(&kvm_protected_mode_initialized);
+	on_each_cpu(_kvm_host_prot_finalize, &ret, 1);
+	return ret;
 }
 
 static int finalize_hyp_mode(void)
@@ -1984,15 +2000,7 @@ static int finalize_hyp_mode(void)
 	 * None of other sections should ever be introspected.
 	 */
 	kmemleak_free_part(__hyp_bss_start, __hyp_bss_end - __hyp_bss_start);
-
-	/*
-	 * Flip the static key upfront as that may no longer be possible
-	 * once the host stage 2 is installed.
-	 */
-	static_branch_enable(&kvm_protected_mode_initialized);
-	on_each_cpu(_kvm_host_prot_finalize, NULL, 1);
-
-	return 0;
+	return pkvm_drop_host_privileges();
 }
 
 struct kvm_vcpu *kvm_mpidr_to_vcpu(struct kvm *kvm, unsigned long mpidr)
-- 
GitLab


From f6de8edc88d6be2754012a665e359102620350cc Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 8 Oct 2021 14:58:38 +0100
Subject: [PATCH 0614/4878] UPSTREAM: KVM: arm64: Prevent re-finalisation of
 pKVM for a given CPU

__pkvm_prot_finalize() completes the deprivilege of the host when pKVM
is in use by installing a stage-2 translation table for the calling CPU.

Issuing the hypercall multiple times for a given CPU makes little sense,
but in such a case just return early with -EPERM rather than go through
the whole page-table dance again.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-6-will@kernel.org
(cherry picked from commit 07036cffe17ec07e8fb630d86f8ea21832d9e57d)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I79dc15319bd3dc09233d95cfaa07d020e8a57973
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 34eeb524b6860..55d1fcd8bf61a 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -134,6 +134,9 @@ int __pkvm_prot_finalize(void)
 	struct kvm_s2_mmu *mmu = &host_kvm.arch.mmu;
 	struct kvm_nvhe_init_params *params = this_cpu_ptr(&kvm_init_params);
 
+	if (params->hcr_el2 & HCR_VM)
+		return -EPERM;
+
 	params->vttbr = kvm_get_vttbr(mmu);
 	params->vtcr = host_kvm.arch.vtcr;
 	params->hcr_el2 |= HCR_VM;
-- 
GitLab


From 975154d1702446f056ac0f06c511a52bd207b47e Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 8 Oct 2021 14:58:39 +0100
Subject: [PATCH 0615/4878] UPSTREAM: KVM: arm64: Disable privileged hypercalls
 after pKVM finalisation

After pKVM has been 'finalised' using the __pkvm_prot_finalize hypercall,
the calling CPU will have a Stage-2 translation enabled to prevent access
to memory pages owned by EL2.

Although this forms a significant part of the process to deprivilege the
host kernel, we also need to ensure that the hypercall interface is
reduced so that the EL2 code cannot, for example, be re-initialised using
a new set of vectors.

Re-order the hypercalls so that only a suffix remains available after
finalisation of pKVM.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-7-will@kernel.org
(cherry picked from commit 057bed206f70d624c2eacb43ec56551950a26832)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I61e57c7bff456d40866acd01475b2e9ace1e1bd6
---
 arch/arm64/include/asm/kvm_asm.h   | 25 +++++++++++---------
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 37 +++++++++++++++++++++---------
 2 files changed, 40 insertions(+), 22 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index b38016b561b54..520276a459ce8 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -49,27 +49,30 @@
 #include <linux/mm.h>
 
 enum __kvm_host_smccc_func {
+	/* Hypercalls available only prior to pKVM finalisation */
 	/* __KVM_HOST_SMCCC_FUNC___kvm_hyp_init */
-	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run = __KVM_HOST_SMCCC_FUNC___kvm_hyp_init + 1,
+	__KVM_HOST_SMCCC_FUNC___kvm_get_mdcr_el2 = __KVM_HOST_SMCCC_FUNC___kvm_hyp_init + 1,
+	__KVM_HOST_SMCCC_FUNC___pkvm_init,
+	__KVM_HOST_SMCCC_FUNC___pkvm_create_private_mapping,
+	__KVM_HOST_SMCCC_FUNC___pkvm_cpu_set_vector,
+	__KVM_HOST_SMCCC_FUNC___kvm_enable_ssbs,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_init_lrs,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_get_gic_config,
+	__KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize,
+
+	/* Hypercalls available after pKVM finalisation */
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
+	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
+	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
 	__KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid_ipa,
 	__KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_cpu_context,
 	__KVM_HOST_SMCCC_FUNC___kvm_timer_set_cntvoff,
-	__KVM_HOST_SMCCC_FUNC___kvm_enable_ssbs,
-	__KVM_HOST_SMCCC_FUNC___vgic_v3_get_gic_config,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_read_vmcr,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_write_vmcr,
-	__KVM_HOST_SMCCC_FUNC___vgic_v3_init_lrs,
-	__KVM_HOST_SMCCC_FUNC___kvm_get_mdcr_el2,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs,
-	__KVM_HOST_SMCCC_FUNC___pkvm_init,
-	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
-	__KVM_HOST_SMCCC_FUNC___pkvm_create_private_mapping,
-	__KVM_HOST_SMCCC_FUNC___pkvm_cpu_set_vector,
-	__KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize,
-	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 2da6aa8da8680..8566805ef62c3 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -165,36 +165,51 @@ typedef void (*hcall_t)(struct kvm_cpu_context *);
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
 
 static const hcall_t host_hcall[] = {
-	HANDLE_FUNC(__kvm_vcpu_run),
+	/* ___kvm_hyp_init */
+	HANDLE_FUNC(__kvm_get_mdcr_el2),
+	HANDLE_FUNC(__pkvm_init),
+	HANDLE_FUNC(__pkvm_create_private_mapping),
+	HANDLE_FUNC(__pkvm_cpu_set_vector),
+	HANDLE_FUNC(__kvm_enable_ssbs),
+	HANDLE_FUNC(__vgic_v3_init_lrs),
+	HANDLE_FUNC(__vgic_v3_get_gic_config),
+	HANDLE_FUNC(__pkvm_prot_finalize),
+
+	HANDLE_FUNC(__pkvm_host_share_hyp),
 	HANDLE_FUNC(__kvm_adjust_pc),
+	HANDLE_FUNC(__kvm_vcpu_run),
 	HANDLE_FUNC(__kvm_flush_vm_context),
 	HANDLE_FUNC(__kvm_tlb_flush_vmid_ipa),
 	HANDLE_FUNC(__kvm_tlb_flush_vmid),
 	HANDLE_FUNC(__kvm_flush_cpu_context),
 	HANDLE_FUNC(__kvm_timer_set_cntvoff),
-	HANDLE_FUNC(__kvm_enable_ssbs),
-	HANDLE_FUNC(__vgic_v3_get_gic_config),
 	HANDLE_FUNC(__vgic_v3_read_vmcr),
 	HANDLE_FUNC(__vgic_v3_write_vmcr),
-	HANDLE_FUNC(__vgic_v3_init_lrs),
-	HANDLE_FUNC(__kvm_get_mdcr_el2),
 	HANDLE_FUNC(__vgic_v3_save_aprs),
 	HANDLE_FUNC(__vgic_v3_restore_aprs),
-	HANDLE_FUNC(__pkvm_init),
-	HANDLE_FUNC(__pkvm_cpu_set_vector),
-	HANDLE_FUNC(__pkvm_host_share_hyp),
-	HANDLE_FUNC(__pkvm_create_private_mapping),
-	HANDLE_FUNC(__pkvm_prot_finalize),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(unsigned long, id, host_ctxt, 0);
+	unsigned long hcall_min = 0;
 	hcall_t hfn;
 
+	/*
+	 * If pKVM has been initialised then reject any calls to the
+	 * early "privileged" hypercalls. Note that we cannot reject
+	 * calls to __pkvm_prot_finalize for two reasons: (1) The static
+	 * key used to determine initialisation must be toggled prior to
+	 * finalisation and (2) finalisation is performed on a per-CPU
+	 * basis. This is all fine, however, since __pkvm_prot_finalize
+	 * returns -EPERM after the first call for a given CPU.
+	 */
+	if (static_branch_unlikely(&kvm_protected_mode_initialized))
+		hcall_min = __KVM_HOST_SMCCC_FUNC___pkvm_prot_finalize;
+
 	id -= KVM_HOST_SMCCC_ID(0);
 
-	if (unlikely(id >= ARRAY_SIZE(host_hcall)))
+	if (unlikely(id < hcall_min || id >= ARRAY_SIZE(host_hcall)))
 		goto inval;
 
 	hfn = host_hcall[id];
-- 
GitLab


From fdd4c3ca3727694f268b1719043f14d19435eb30 Mon Sep 17 00:00:00 2001
From: Ricardo Koller <ricarkol@google.com>
Date: Mon, 4 Oct 2021 18:19:11 -0700
Subject: [PATCH 0616/4878] UPSTREAM: kvm: arm64: vgic: Introduce
 vgic_check_iorange

Add the new vgic_check_iorange helper that checks that an iorange is
sane: the start address and size have valid alignments, the range is
within the addressable PA range, start+size doesn't overflow, and the
start wasn't already defined.

No functional change.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-2-ricarkol@google.com
(cherry picked from commit f25c5e4dafd859b941a4654cbab9eb83ff994bcd)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ic702fe5c28dc1c7a7bc5975703acee084b8a7b6b
---
 arch/arm64/kvm/vgic/vgic-kvm-device.c | 22 ++++++++++++++++++++++
 arch/arm64/kvm/vgic/vgic.h            |  4 ++++
 2 files changed, 26 insertions(+)

diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c
index 7740995de982e..cc0ad227b3801 100644
--- a/arch/arm64/kvm/vgic/vgic-kvm-device.c
+++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c
@@ -29,6 +29,28 @@ int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
 	return 0;
 }
 
+int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr,
+		       phys_addr_t addr, phys_addr_t alignment,
+		       phys_addr_t size)
+{
+	int ret;
+
+	ret = vgic_check_ioaddr(kvm, &ioaddr, addr, alignment);
+	if (ret)
+		return ret;
+
+	if (!IS_ALIGNED(size, alignment))
+		return -EINVAL;
+
+	if (addr + size < addr)
+		return -EINVAL;
+
+	if (addr + size > kvm_phys_size(kvm))
+		return -E2BIG;
+
+	return 0;
+}
+
 static int vgic_check_type(struct kvm *kvm, int type_needed)
 {
 	if (kvm->arch.vgic.vgic_model != type_needed)
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 14a9218641f57..4be01c38e8f1f 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -175,6 +175,10 @@ void vgic_irq_handle_resampling(struct vgic_irq *irq,
 int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
 		      phys_addr_t addr, phys_addr_t alignment);
 
+int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr,
+		       phys_addr_t addr, phys_addr_t alignment,
+		       phys_addr_t size);
+
 void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu);
 void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
 void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr);
-- 
GitLab


From de006431c7e2b5f7f00b8269a8ae033e33ba964f Mon Sep 17 00:00:00 2001
From: Ricardo Koller <ricarkol@google.com>
Date: Mon, 4 Oct 2021 18:19:12 -0700
Subject: [PATCH 0617/4878] UPSTREAM: KVM: arm64: vgic-v3: Check redist region
 is not above the VM IPA size

Verify that the redistributor regions do not extend beyond the
VM-specified IPA range (phys_size). This can happen when using
KVM_VGIC_V3_ADDR_TYPE_REDIST or KVM_VGIC_V3_ADDR_TYPE_REDIST_REGIONS
with:

  base + size > phys_size AND base < phys_size

Add the missing check into vgic_v3_alloc_redist_region() which is called
when setting the regions, and into vgic_v3_check_base() which is called
when attempting the first vcpu-run. The vcpu-run check does not apply to
KVM_VGIC_V3_ADDR_TYPE_REDIST_REGIONS because the regions size is known
before the first vcpu-run. Note that using the REDIST_REGIONS API
results in a different check, which already exists, at first vcpu run:
that the number of redist regions is enough for all vcpus.

Finally, this patch also enables some extra tests in
vgic_v3_alloc_redist_region() by calculating "size" early for the legacy
redist api: like checking that the REDIST region can fit all the already
created vcpus.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-3-ricarkol@google.com
(cherry picked from commit 4612d98f58c73ad63928200fd332f75c8e524dae)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I9c5877cb305621d206e36250aa970a55926d4b5e
---
 arch/arm64/kvm/vgic/vgic-mmio-v3.c | 6 ++++--
 arch/arm64/kvm/vgic/vgic-v3.c      | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-mmio-v3.c b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
index 03a253785700a..09c6dda4329a1 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
@@ -796,7 +796,9 @@ static int vgic_v3_alloc_redist_region(struct kvm *kvm, uint32_t index,
 	struct vgic_dist *d = &kvm->arch.vgic;
 	struct vgic_redist_region *rdreg;
 	struct list_head *rd_regions = &d->rd_regions;
-	size_t size = count * KVM_VGIC_V3_REDIST_SIZE;
+	int nr_vcpus = atomic_read(&kvm->online_vcpus);
+	size_t size = count ? count * KVM_VGIC_V3_REDIST_SIZE
+			    : nr_vcpus * KVM_VGIC_V3_REDIST_SIZE;
 	int ret;
 
 	/* cross the end of memory ? */
@@ -840,7 +842,7 @@ static int vgic_v3_alloc_redist_region(struct kvm *kvm, uint32_t index,
 
 	rdreg->base = VGIC_ADDR_UNDEF;
 
-	ret = vgic_check_ioaddr(kvm, &rdreg->base, base, SZ_64K);
+	ret = vgic_check_iorange(kvm, rdreg->base, base, SZ_64K, size);
 	if (ret)
 		goto free;
 
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 21a6207fb2eed..960f51a8691f8 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -483,8 +483,10 @@ bool vgic_v3_check_base(struct kvm *kvm)
 		return false;
 
 	list_for_each_entry(rdreg, &d->rd_regions, list) {
-		if (rdreg->base + vgic_v3_rd_region_size(kvm, rdreg) <
-			rdreg->base)
+		size_t sz = vgic_v3_rd_region_size(kvm, rdreg);
+
+		if (vgic_check_iorange(kvm, VGIC_ADDR_UNDEF,
+				       rdreg->base, SZ_64K, sz))
 			return false;
 	}
 
-- 
GitLab


From 42319f7a6efbcd61eeed6547a8d46400fd553170 Mon Sep 17 00:00:00 2001
From: Ricardo Koller <ricarkol@google.com>
Date: Mon, 4 Oct 2021 18:19:13 -0700
Subject: [PATCH 0618/4878] UPSTREAM: KVM: arm64: vgic-v2: Check cpu interface
 region is not above the VM IPA size

Verify that the GICv2 CPU interface does not extend beyond the
VM-specified IPA range (phys_size).

  base + size > phys_size AND base < phys_size

Add the missing check into kvm_vgic_addr() which is called when setting
the region. This patch also enables some superfluous checks for the
distributor (vgic_check_ioaddr was enough as alignment == size for the
distributors).

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-4-ricarkol@google.com
(cherry picked from commit c56a87da0a7fa14180082249ac954c7ebc9e74e1)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib462da73c1f819152ee799507f037126db02ebbe
---
 arch/arm64/kvm/vgic/vgic-kvm-device.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c
index cc0ad227b3801..08ae34b1a9861 100644
--- a/arch/arm64/kvm/vgic/vgic-kvm-device.c
+++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c
@@ -79,7 +79,7 @@ int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write)
 {
 	int r = 0;
 	struct vgic_dist *vgic = &kvm->arch.vgic;
-	phys_addr_t *addr_ptr, alignment;
+	phys_addr_t *addr_ptr, alignment, size;
 	u64 undef_value = VGIC_ADDR_UNDEF;
 
 	mutex_lock(&kvm->lock);
@@ -88,16 +88,19 @@ int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write)
 		r = vgic_check_type(kvm, KVM_DEV_TYPE_ARM_VGIC_V2);
 		addr_ptr = &vgic->vgic_dist_base;
 		alignment = SZ_4K;
+		size = KVM_VGIC_V2_DIST_SIZE;
 		break;
 	case KVM_VGIC_V2_ADDR_TYPE_CPU:
 		r = vgic_check_type(kvm, KVM_DEV_TYPE_ARM_VGIC_V2);
 		addr_ptr = &vgic->vgic_cpu_base;
 		alignment = SZ_4K;
+		size = KVM_VGIC_V2_CPU_SIZE;
 		break;
 	case KVM_VGIC_V3_ADDR_TYPE_DIST:
 		r = vgic_check_type(kvm, KVM_DEV_TYPE_ARM_VGIC_V3);
 		addr_ptr = &vgic->vgic_dist_base;
 		alignment = SZ_64K;
+		size = KVM_VGIC_V3_DIST_SIZE;
 		break;
 	case KVM_VGIC_V3_ADDR_TYPE_REDIST: {
 		struct vgic_redist_region *rdreg;
@@ -162,7 +165,7 @@ int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write)
 		goto out;
 
 	if (write) {
-		r = vgic_check_ioaddr(kvm, addr_ptr, *addr, alignment);
+		r = vgic_check_iorange(kvm, *addr_ptr, *addr, alignment, size);
 		if (!r)
 			*addr_ptr = *addr;
 	} else {
-- 
GitLab


From cb9c7ad480a793361562c6c9d08a3e79480413af Mon Sep 17 00:00:00 2001
From: Ricardo Koller <ricarkol@google.com>
Date: Mon, 4 Oct 2021 18:19:14 -0700
Subject: [PATCH 0619/4878] UPSTREAM: KVM: arm64: vgic-v3: Check ITS region is
 not above the VM IPA size

Verify that the ITS region does not extend beyond the VM-specified IPA
range (phys_size).

  base + size > phys_size AND base < phys_size

Add the missing check into vgic_its_set_attr() which is called when
setting the region.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-5-ricarkol@google.com
(cherry picked from commit 2ec02f6c64f043a249850c835ca7975c3a155d8b)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I859d3e9e702b84579e67f2e0e0b8e13e0759b921
---
 arch/arm64/kvm/vgic/vgic-its.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c
index 61728c543eb9c..ad55bb8cd30f5 100644
--- a/arch/arm64/kvm/vgic/vgic-its.c
+++ b/arch/arm64/kvm/vgic/vgic-its.c
@@ -2710,8 +2710,8 @@ static int vgic_its_set_attr(struct kvm_device *dev,
 		if (copy_from_user(&addr, uaddr, sizeof(addr)))
 			return -EFAULT;
 
-		ret = vgic_check_ioaddr(dev->kvm, &its->vgic_its_base,
-					addr, SZ_64K);
+		ret = vgic_check_iorange(dev->kvm, its->vgic_its_base,
+					 addr, SZ_64K, KVM_VGIC_V3_ITS_SIZE);
 		if (ret)
 			return ret;
 
-- 
GitLab


From 27402d5cc99b77081792ad491afaddf956e2ba21 Mon Sep 17 00:00:00 2001
From: Ricardo Koller <ricarkol@google.com>
Date: Mon, 4 Oct 2021 18:19:15 -0700
Subject: [PATCH 0620/4878] UPSTREAM: KVM: arm64: vgic: Drop
 vgic_check_ioaddr()

There are no more users of vgic_check_ioaddr(). Move its checks to
vgic_check_iorange() and then remove it.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211005011921.437353-6-ricarkol@google.com
(cherry picked from commit 96e903896969679104c7fef2c776ed1b5b09584f)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib6716c451f76bd80d7596f2c9837df4f2ecfcf7a
---
 arch/arm64/kvm/vgic/vgic-kvm-device.c | 26 ++++----------------------
 arch/arm64/kvm/vgic/vgic.h            |  3 ---
 2 files changed, 4 insertions(+), 25 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-kvm-device.c b/arch/arm64/kvm/vgic/vgic-kvm-device.c
index 08ae34b1a9861..0d000d2fe8d28 100644
--- a/arch/arm64/kvm/vgic/vgic-kvm-device.c
+++ b/arch/arm64/kvm/vgic/vgic-kvm-device.c
@@ -14,38 +14,20 @@
 
 /* common helpers */
 
-int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
-		      phys_addr_t addr, phys_addr_t alignment)
-{
-	if (addr & ~kvm_phys_mask(kvm))
-		return -E2BIG;
-
-	if (!IS_ALIGNED(addr, alignment))
-		return -EINVAL;
-
-	if (!IS_VGIC_ADDR_UNDEF(*ioaddr))
-		return -EEXIST;
-
-	return 0;
-}
-
 int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr,
 		       phys_addr_t addr, phys_addr_t alignment,
 		       phys_addr_t size)
 {
-	int ret;
-
-	ret = vgic_check_ioaddr(kvm, &ioaddr, addr, alignment);
-	if (ret)
-		return ret;
+	if (!IS_VGIC_ADDR_UNDEF(ioaddr))
+		return -EEXIST;
 
-	if (!IS_ALIGNED(size, alignment))
+	if (!IS_ALIGNED(addr, alignment) || !IS_ALIGNED(size, alignment))
 		return -EINVAL;
 
 	if (addr + size < addr)
 		return -EINVAL;
 
-	if (addr + size > kvm_phys_size(kvm))
+	if (addr & ~kvm_phys_mask(kvm) || addr + size > kvm_phys_size(kvm))
 		return -E2BIG;
 
 	return 0;
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 4be01c38e8f1f..3fd6c86a7ef34 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -172,9 +172,6 @@ void vgic_kick_vcpus(struct kvm *kvm);
 void vgic_irq_handle_resampling(struct vgic_irq *irq,
 				bool lr_deactivated, bool lr_pending);
 
-int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
-		      phys_addr_t addr, phys_addr_t alignment);
-
 int vgic_check_iorange(struct kvm *kvm, phys_addr_t ioaddr,
 		       phys_addr_t addr, phys_addr_t alignment,
 		       phys_addr_t size);
-- 
GitLab


From a621a4e6cb1e249d165f643d511c887c7fc4cdc7 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 1 Oct 2021 18:05:53 +0100
Subject: [PATCH 0621/4878] UPSTREAM: KVM: arm64: Allow KVM to be disabled from
 the command line

Although KVM can be compiled out of the kernel, it cannot be disabled
at runtime. Allow this possibility by introducing a new mode that
will prevent KVM from initialising.

This is useful in the (limited) circumstances where you don't want
KVM to be available (what is wrong with you?), or when you want
to install another hypervisor instead (good luck with that).

Reviewed-by: David Brazdil <dbrazdil@google.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Scull <ascull@google.com>
Link: https://lore.kernel.org/r/20211001170553.3062988-1-maz@kernel.org
(cherry picked from commit b6a68b97af23cc75781bed38221ce73144ac2e39)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie796c716fc7cece906a8cded0ae4652a828988bb
---
 Documentation/admin-guide/kernel-parameters.txt |  2 ++
 arch/arm64/include/asm/kvm_host.h               |  1 +
 arch/arm64/kvm/arm.c                            | 14 +++++++++++++-
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 4223a4ba2ea00..3df1208786074 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2302,6 +2302,8 @@
 	kvm-arm.mode=
 			[KVM,ARM] Select one of KVM/arm64's modes of operation.
 
+			none: Forcefully disable KVM.
+
 			nvhe: Standard nVHE-based mode, without support for
 			      protected guests.
 
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index b45ae346301a0..d276bc897ad92 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -59,6 +59,7 @@
 enum kvm_mode {
 	KVM_MODE_DEFAULT,
 	KVM_MODE_PROTECTED,
+	KVM_MODE_NONE,
 };
 enum kvm_mode kvm_get_mode(void);
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 80fccd599344d..67be557a27e2c 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -2069,6 +2069,11 @@ int kvm_arch_init(void *opaque)
 		return -ENODEV;
 	}
 
+	if (kvm_get_mode() == KVM_MODE_NONE) {
+		kvm_info("KVM disabled from command line\n");
+		return -ENODEV;
+	}
+
 	in_hyp_mode = is_kernel_in_hyp_mode();
 
 	if (cpus_have_final_cap(ARM64_WORKAROUND_DEVICE_LOAD_ACQUIRE) ||
@@ -2142,8 +2147,15 @@ static int __init early_kvm_mode_cfg(char *arg)
 		return 0;
 	}
 
-	if (strcmp(arg, "nvhe") == 0 && !WARN_ON(is_kernel_in_hyp_mode()))
+	if (strcmp(arg, "nvhe") == 0 && !WARN_ON(is_kernel_in_hyp_mode())) {
+		kvm_mode = KVM_MODE_DEFAULT;
 		return 0;
+	}
+
+	if (strcmp(arg, "none") == 0) {
+		kvm_mode = KVM_MODE_NONE;
+		return 0;
+	}
 
 	return -EINVAL;
 }
-- 
GitLab


From ddd24bfa8317d3ac981780df1b8562735f414441 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 21 Sep 2021 15:22:30 -0700
Subject: [PATCH 0622/4878] UPSTREAM: KVM: arm64: Unconditionally include
 generic KVM's Kconfig

Unconditionally "source" the generic KVM Kconfig instead of wrapping it
with KVM=y.  A future patch will select HAVE_KVM so that referencing
HAVE_KVM in common kernel code doesn't break, and because KVM=y and
HAVE_KVM=n is weird.  Source the generic KVM Kconfig unconditionally so
that HAVE_KVM and KVM don't end up with a circular dependency.

Note, all but one of generic KVM's "configs" are of the HAVE_XYZ nature,
and the one outlier correctly takes a dependency on CONFIG_KVM, i.e. the
generic Kconfig is intended to be included unconditionally.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
[maz: made NVHE_EL2_DEBUG depend on KVM]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210921222231.518092-2-seanjc@google.com
(cherry picked from commit c8f1e96734069c788b10545f4fd82bcbb6b55dfa)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I94e4a0666f5da3ff17ebfa0068eec5a9358556f3
---
 arch/arm64/kvm/Kconfig | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 7634c1ecc0ed6..21e8b1ce8fb13 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -4,6 +4,7 @@
 #
 
 source "virt/lib/Kconfig"
+source "virt/kvm/Kconfig"
 
 menuconfig VIRTUALIZATION
 	bool "Virtualization"
@@ -45,12 +46,9 @@ menuconfig KVM
 
 	  If unsure, say N.
 
-if KVM
-
-source "virt/kvm/Kconfig"
-
 config NVHE_EL2_DEBUG
 	bool "Debug mode for non-VHE EL2 object"
+	depends on KVM
 	help
 	  Say Y here to enable the debug mode for the non-VHE KVM EL2 object.
 	  Failure reports will BUG() in the hypervisor. This is intended for
@@ -58,6 +56,4 @@ config NVHE_EL2_DEBUG
 
 	  If unsure, say N.
 
-endif # KVM
-
 endif # VIRTUALIZATION
-- 
GitLab


From a9684b06cd30f6a1b6af4800ec5613e1fb6c4570 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 21 Sep 2021 15:22:31 -0700
Subject: [PATCH 0623/4878] BACKPORT: KVM: arm64: Depend on HAVE_KVM instead of
 OF

Select HAVE_KVM at all times on arm64, as the OF requirement is
always there (even in the case of an ACPI system, we still depend
on some of the OF infrastructure), and won't fo away.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Acked-by: Will Deacon <will@kernel.org>
[maz: Drop the "HAVE_KVM if OF" dependency, as OF is always there on arm64,
 new commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210921222231.518092-3-seanjc@google.com
(cherry picked from commit e26bb75aa2f17fc079e6a24dff653b098e1f5d37)
[willdeacon@: Fixed context conflict in arm64 KVM Kconfig]
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I64236d409454463bf0f2b0a2efb2e5a00d8f3deb
---
 arch/arm64/Kconfig     | 1 +
 arch/arm64/kvm/Kconfig | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 96d0e0b0aab5c..f99a4b733e606 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -176,6 +176,7 @@ config ARM64
 	select HAVE_GCC_PLUGINS
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select HAVE_KVM
 	select HAVE_NMI
 	select HAVE_PATA_PLATFORM
 	select HAVE_PERF_EVENTS
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 21e8b1ce8fb13..ecec40c186a98 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -20,7 +20,7 @@ if VIRTUALIZATION
 
 menuconfig KVM
 	bool "Kernel-based Virtual Machine (KVM) support"
-	depends on OF
+	depends on HAVE_KVM
 	# for TASKSTATS/TASK_DELAY_ACCT:
 	depends on NET && MULTIUSER
 	select MMU_NOTIFIER
-- 
GitLab


From d6905346b5a1b519ca7c833ac781851b3d9f92d0 Mon Sep 17 00:00:00 2001
From: Alexandru Elisei <alexandru.elisei@arm.com>
Date: Mon, 11 Oct 2021 11:58:38 +0100
Subject: [PATCH 0624/4878] UPSTREAM: KVM: arm64: Return early from
 read_id_reg() if register is RAZ

If read_id_reg() is called for an ID register which is Read-As-Zero (RAZ),
it initializes the return value to zero, then goes through a list of
registers which require special handling before returning the final value.

By not returning as soon as it checks that the register should be RAZ, the
function creates the opportunity for bugs, if, for example, a patch changes
a register to RAZ (like has happened with PMSWINC_EL0 in commit
11663111cd49), but doesn't remove the special handling from read_id_reg();
or if a register is RAZ in certain situations, but readable in others.

Return early to make it impossible for a RAZ register to be anything other
than zero.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011105840.155815-2-alexandru.elisei@arm.com
(cherry picked from commit 00d5101b254b77c35a8d55fe46331b19192866f3)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I048ae4c92f29e617326807536de760a4e3536f83
---
 arch/arm64/kvm/sys_regs.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 1d46e185f31e1..4adda8bf31681 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1064,7 +1064,12 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
 		struct sys_reg_desc const *r, bool raz)
 {
 	u32 id = reg_to_encoding(r);
-	u64 val = raz ? 0 : read_sanitised_ftr_reg(id);
+	u64 val;
+
+	if (raz)
+		return 0;
+
+	val = read_sanitised_ftr_reg(id);
 
 	switch (id) {
 	case SYS_ID_AA64PFR0_EL1:
-- 
GitLab


From fcc366aff269e77bf13023dc6dabcb7d6e4b7176 Mon Sep 17 00:00:00 2001
From: Alexandru Elisei <alexandru.elisei@arm.com>
Date: Mon, 11 Oct 2021 11:58:39 +0100
Subject: [PATCH 0625/4878] UPSTREAM: KVM: arm64: Use get_raz_reg() for
 userspace reads of PMSWINC_EL0

PMSWINC_EL0 is a write-only register and was initially part of the VCPU
register state, but was later removed in commit 7a3ba3095a32 ("KVM:
arm64: Remove PMSWINC_EL0 shadow register"). To prevent regressions, the
register was kept accessible from userspace as Read-As-Zero (RAZ).

The read function that is used to handle userspace reads of this
register is get_raz_id_reg(), which, while technically correct, as it
returns 0, it is not semantically correct, as PMSWINC_EL0 is not an ID
register as the function name suggests.

Add a new function, get_raz_reg(), to use it as the accessor for
PMSWINC_EL0, as to not conflate get_raz_id_reg() to handle other types
of registers.

No functional change intended.

Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011105840.155815-3-alexandru.elisei@arm.com
(cherry picked from commit 5a4309762356f05df4c92629e5df15ab75c42c0d)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6e64f10097c1f1e6094ea0c4c48b03c69fa7053b
---
 arch/arm64/kvm/sys_regs.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 4adda8bf31681..1be827740f876 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1285,6 +1285,15 @@ static int set_raz_id_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 	return __set_id_reg(vcpu, rd, uaddr, true);
 }
 
+static int get_raz_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
+		       const struct kvm_one_reg *reg, void __user *uaddr)
+{
+	const u64 id = sys_reg_to_index(rd);
+	const u64 val = 0;
+
+	return reg_to_user(uaddr, &val, id);
+}
+
 static int set_wi_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 		      const struct kvm_one_reg *reg, void __user *uaddr)
 {
@@ -1647,7 +1656,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	 * previously (and pointlessly) advertised in the past...
 	 */
 	{ PMU_SYS_REG(SYS_PMSWINC_EL0),
-	  .get_user = get_raz_id_reg, .set_user = set_wi_reg,
+	  .get_user = get_raz_reg, .set_user = set_wi_reg,
 	  .access = access_pmswinc, .reset = NULL },
 	{ PMU_SYS_REG(SYS_PMSELR_EL0),
 	  .access = access_pmselr, .reset = reset_pmselr, .reg = PMSELR_EL0 },
-- 
GitLab


From 43594fbf0b0fadd2980765961b9174d9777d8af7 Mon Sep 17 00:00:00 2001
From: Alexandru Elisei <alexandru.elisei@arm.com>
Date: Mon, 11 Oct 2021 11:58:40 +0100
Subject: [PATCH 0626/4878] UPSTREAM: KVM: arm64: Replace get_raz_id_reg() with
 get_raz_reg()

Reading a RAZ ID register isn't different from reading any other RAZ
register, so get rid of get_raz_id_reg() and replace it with get_raz_reg(),
which does the same thing, but does it without going through two layers of
indirection.

No functional change.

Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011105840.155815-4-alexandru.elisei@arm.com
(cherry picked from commit ebf6aa8c047352fe43b1e20e580f12d5564da28e)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Idd8725ff57571a1cb1c95a0ddcf35059e4a41ccc
---
 arch/arm64/kvm/sys_regs.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 1be827740f876..3aff06aafd0c8 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1273,12 +1273,6 @@ static int set_id_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 	return __set_id_reg(vcpu, rd, uaddr, raz);
 }
 
-static int get_raz_id_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
-			  const struct kvm_one_reg *reg, void __user *uaddr)
-{
-	return __get_id_reg(vcpu, rd, uaddr, true);
-}
-
 static int set_raz_id_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
 			  const struct kvm_one_reg *reg, void __user *uaddr)
 {
@@ -1402,7 +1396,7 @@ static unsigned int mte_visibility(const struct kvm_vcpu *vcpu,
 #define ID_UNALLOCATED(crm, op2) {			\
 	Op0(3), Op1(0), CRn(0), CRm(crm), Op2(op2),	\
 	.access = access_raz_id_reg,			\
-	.get_user = get_raz_id_reg,			\
+	.get_user = get_raz_reg,			\
 	.set_user = set_raz_id_reg,			\
 }
 
@@ -1414,7 +1408,7 @@ static unsigned int mte_visibility(const struct kvm_vcpu *vcpu,
 #define ID_HIDDEN(name) {			\
 	SYS_DESC(SYS_##name),			\
 	.access = access_raz_id_reg,		\
-	.get_user = get_raz_id_reg,		\
+	.get_user = get_raz_reg,		\
 	.set_user = set_raz_id_reg,		\
 }
 
-- 
GitLab


From 307468fab8551563df6541b8bb8f3249d71b3266 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 15:56:26 +0100
Subject: [PATCH 0627/4878] UPSTREAM: KVM: arm64: Move __get_fault_info() and
 co into their own include file

In order to avoid including the whole of the switching helpers
in unrelated files, move the __get_fault_info() and related helpers
into their own include file.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211010145636.1950948-2-tabba@google.com
(cherry picked from commit 7dd9b5a157485ae8c48f76f087b1867ace016613)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ibe44e3c8ad84233cbbd4c5d66f42f0e8578d7b86
---
 arch/arm64/kvm/hyp/include/hyp/fault.h  | 75 +++++++++++++++++++++++++
 arch/arm64/kvm/hyp/include/hyp/switch.h | 61 +-------------------
 arch/arm64/kvm/hyp/nvhe/mem_protect.c   |  2 +-
 3 files changed, 77 insertions(+), 61 deletions(-)
 create mode 100644 arch/arm64/kvm/hyp/include/hyp/fault.h

diff --git a/arch/arm64/kvm/hyp/include/hyp/fault.h b/arch/arm64/kvm/hyp/include/hyp/fault.h
new file mode 100644
index 0000000000000..1b8a2dcd712f3
--- /dev/null
+++ b/arch/arm64/kvm/hyp/include/hyp/fault.h
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2015 - ARM Ltd
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ */
+
+#ifndef __ARM64_KVM_HYP_FAULT_H__
+#define __ARM64_KVM_HYP_FAULT_H__
+
+#include <asm/kvm_asm.h>
+#include <asm/kvm_emulate.h>
+#include <asm/kvm_hyp.h>
+#include <asm/kvm_mmu.h>
+
+static inline bool __translate_far_to_hpfar(u64 far, u64 *hpfar)
+{
+	u64 par, tmp;
+
+	/*
+	 * Resolve the IPA the hard way using the guest VA.
+	 *
+	 * Stage-1 translation already validated the memory access
+	 * rights. As such, we can use the EL1 translation regime, and
+	 * don't have to distinguish between EL0 and EL1 access.
+	 *
+	 * We do need to save/restore PAR_EL1 though, as we haven't
+	 * saved the guest context yet, and we may return early...
+	 */
+	par = read_sysreg_par();
+	if (!__kvm_at("s1e1r", far))
+		tmp = read_sysreg_par();
+	else
+		tmp = SYS_PAR_EL1_F; /* back to the guest */
+	write_sysreg(par, par_el1);
+
+	if (unlikely(tmp & SYS_PAR_EL1_F))
+		return false; /* Translation failed, back to guest */
+
+	/* Convert PAR to HPFAR format */
+	*hpfar = PAR_TO_HPFAR(tmp);
+	return true;
+}
+
+static inline bool __get_fault_info(u64 esr, struct kvm_vcpu_fault_info *fault)
+{
+	u64 hpfar, far;
+
+	far = read_sysreg_el2(SYS_FAR);
+
+	/*
+	 * The HPFAR can be invalid if the stage 2 fault did not
+	 * happen during a stage 1 page table walk (the ESR_EL2.S1PTW
+	 * bit is clear) and one of the two following cases are true:
+	 *   1. The fault was due to a permission fault
+	 *   2. The processor carries errata 834220
+	 *
+	 * Therefore, for all non S1PTW faults where we either have a
+	 * permission fault or the errata workaround is enabled, we
+	 * resolve the IPA using the AT instruction.
+	 */
+	if (!(esr & ESR_ELx_S1PTW) &&
+	    (cpus_have_final_cap(ARM64_WORKAROUND_834220) ||
+	     (esr & ESR_ELx_FSC_TYPE) == FSC_PERM)) {
+		if (!__translate_far_to_hpfar(far, &hpfar))
+			return false;
+	} else {
+		hpfar = read_sysreg(hpfar_el2);
+	}
+
+	fault->far_el2 = far;
+	fault->hpfar_el2 = hpfar;
+	return true;
+}
+
+#endif
diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index a0e78a6027be0..54abc8298ec38 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -8,6 +8,7 @@
 #define __ARM64_KVM_HYP_SWITCH_H__
 
 #include <hyp/adjust_pc.h>
+#include <hyp/fault.h>
 
 #include <linux/arm-smccc.h>
 #include <linux/kvm_host.h>
@@ -133,66 +134,6 @@ static inline void ___deactivate_traps(struct kvm_vcpu *vcpu)
 	}
 }
 
-static inline bool __translate_far_to_hpfar(u64 far, u64 *hpfar)
-{
-	u64 par, tmp;
-
-	/*
-	 * Resolve the IPA the hard way using the guest VA.
-	 *
-	 * Stage-1 translation already validated the memory access
-	 * rights. As such, we can use the EL1 translation regime, and
-	 * don't have to distinguish between EL0 and EL1 access.
-	 *
-	 * We do need to save/restore PAR_EL1 though, as we haven't
-	 * saved the guest context yet, and we may return early...
-	 */
-	par = read_sysreg_par();
-	if (!__kvm_at("s1e1r", far))
-		tmp = read_sysreg_par();
-	else
-		tmp = SYS_PAR_EL1_F; /* back to the guest */
-	write_sysreg(par, par_el1);
-
-	if (unlikely(tmp & SYS_PAR_EL1_F))
-		return false; /* Translation failed, back to guest */
-
-	/* Convert PAR to HPFAR format */
-	*hpfar = PAR_TO_HPFAR(tmp);
-	return true;
-}
-
-static inline bool __get_fault_info(u64 esr, struct kvm_vcpu_fault_info *fault)
-{
-	u64 hpfar, far;
-
-	far = read_sysreg_el2(SYS_FAR);
-
-	/*
-	 * The HPFAR can be invalid if the stage 2 fault did not
-	 * happen during a stage 1 page table walk (the ESR_EL2.S1PTW
-	 * bit is clear) and one of the two following cases are true:
-	 *   1. The fault was due to a permission fault
-	 *   2. The processor carries errata 834220
-	 *
-	 * Therefore, for all non S1PTW faults where we either have a
-	 * permission fault or the errata workaround is enabled, we
-	 * resolve the IPA using the AT instruction.
-	 */
-	if (!(esr & ESR_ELx_S1PTW) &&
-	    (cpus_have_final_cap(ARM64_WORKAROUND_834220) ||
-	     (esr & ESR_ELx_FSC_TYPE) == FSC_PERM)) {
-		if (!__translate_far_to_hpfar(far, &hpfar))
-			return false;
-	} else {
-		hpfar = read_sysreg(hpfar_el2);
-	}
-
-	fault->far_el2 = far;
-	fault->hpfar_el2 = hpfar;
-	return true;
-}
-
 static inline bool __populate_fault_info(struct kvm_vcpu *vcpu)
 {
 	u8 ec;
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 55d1fcd8bf61a..2a34dd8c8b0ad 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -11,7 +11,7 @@
 #include <asm/kvm_pgtable.h>
 #include <asm/stage2_pgtable.h>
 
-#include <hyp/switch.h>
+#include <hyp/fault.h>
 
 #include <nvhe/gfp.h>
 #include <nvhe/memory.h>
-- 
GitLab


From 1b22c8d87e825107caf5ef366dd0b79853d2fbbd Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 15:56:27 +0100
Subject: [PATCH 0628/4878] UPSTREAM: KVM: arm64: Don't include switch.h into
 nvhe/kvm-main.c

hyp-main.c includes switch.h while it only requires adjust-pc.h.
Fix it to remove an unnecessary dependency.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211010145636.1950948-3-tabba@google.com
(cherry picked from commit cc1e6fdfa92b82902883b70dafa729d3bd427b80)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4ebb380d0938c9c52a28290600834ca564524ba5
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 8566805ef62c3..6d4a76a32ebca 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -4,7 +4,7 @@
  * Author: Andrew Scull <ascull@google.com>
  */
 
-#include <hyp/switch.h>
+#include <hyp/adjust_pc.h>
 
 #include <asm/pgtable-types.h>
 #include <asm/kvm_asm.h>
-- 
GitLab


From 23ca5095d593ebba6c91fa06390b758ae85990e9 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 15:56:28 +0100
Subject: [PATCH 0629/4878] UPSTREAM: KVM: arm64: Move early handlers to per-EC
 handlers

Simplify the early exception handling by slicing the gigantic decoding
tree into a more manageable set of functions, similar to what we have
in handle_exit.c.

This will also make the structure reusable for pKVM's own early exit
handling.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211010145636.1950948-4-tabba@google.com
(cherry picked from commit 8fb2046180a0ad347f2e5bcae760dca67e65aa73)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I73dea0f33208fa7ac41a945b46a09b5d4dfcf969
---
 arch/arm64/kvm/hyp/include/hyp/switch.h | 160 ++++++++++++++----------
 arch/arm64/kvm/hyp/nvhe/switch.c        |  16 +++
 arch/arm64/kvm/hyp/vhe/switch.c         |  16 +++
 3 files changed, 124 insertions(+), 68 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 54abc8298ec38..1e4177322be7b 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -136,16 +136,7 @@ static inline void ___deactivate_traps(struct kvm_vcpu *vcpu)
 
 static inline bool __populate_fault_info(struct kvm_vcpu *vcpu)
 {
-	u8 ec;
-	u64 esr;
-
-	esr = vcpu->arch.fault.esr_el2;
-	ec = ESR_ELx_EC(esr);
-
-	if (ec != ESR_ELx_EC_DABT_LOW && ec != ESR_ELx_EC_IABT_LOW)
-		return true;
-
-	return __get_fault_info(esr, &vcpu->arch.fault);
+	return __get_fault_info(vcpu->arch.fault.esr_el2, &vcpu->arch.fault);
 }
 
 static inline void __hyp_sve_save_host(struct kvm_vcpu *vcpu)
@@ -166,8 +157,13 @@ static inline void __hyp_sve_restore_guest(struct kvm_vcpu *vcpu)
 	write_sysreg_el1(__vcpu_sys_reg(vcpu, ZCR_EL1), SYS_ZCR);
 }
 
-/* Check for an FPSIMD/SVE trap and handle as appropriate */
-static inline bool __hyp_handle_fpsimd(struct kvm_vcpu *vcpu)
+/*
+ * We trap the first access to the FP/SIMD to save the host context and
+ * restore the guest context lazily.
+ * If FP/SIMD is not implemented, handle the trap and inject an undefined
+ * instruction exception to the guest. Similarly for trapped SVE accesses.
+ */
+static bool kvm_hyp_handle_fpsimd(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
 	bool sve_guest, sve_host;
 	u8 esr_ec;
@@ -185,9 +181,6 @@ static inline bool __hyp_handle_fpsimd(struct kvm_vcpu *vcpu)
 	}
 
 	esr_ec = kvm_vcpu_trap_get_class(vcpu);
-	if (esr_ec != ESR_ELx_EC_FP_ASIMD &&
-	    esr_ec != ESR_ELx_EC_SVE)
-		return false;
 
 	/* Don't handle SVE traps for non-SVE vcpus here: */
 	if (!sve_guest && esr_ec != ESR_ELx_EC_FP_ASIMD)
@@ -325,7 +318,7 @@ static inline bool esr_is_ptrauth_trap(u32 esr)
 
 DECLARE_PER_CPU(struct kvm_cpu_context, kvm_hyp_ctxt);
 
-static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu)
+static bool kvm_hyp_handle_ptrauth(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
 	struct kvm_cpu_context *ctxt;
 	u64 val;
@@ -350,6 +343,87 @@ static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu)
 	return true;
 }
 
+static bool kvm_hyp_handle_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	if (cpus_have_final_cap(ARM64_WORKAROUND_CAVIUM_TX2_219_TVM) &&
+	    handle_tx2_tvm(vcpu))
+		return true;
+
+	if (static_branch_unlikely(&vgic_v3_cpuif_trap) &&
+	    __vgic_v3_perform_cpuif_access(vcpu) == 1)
+		return true;
+
+	return false;
+}
+
+static bool kvm_hyp_handle_cp15_32(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	if (static_branch_unlikely(&vgic_v3_cpuif_trap) &&
+	    __vgic_v3_perform_cpuif_access(vcpu) == 1)
+		return true;
+
+	return false;
+}
+
+static bool kvm_hyp_handle_iabt_low(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	if (!__populate_fault_info(vcpu))
+		return true;
+
+	return false;
+}
+
+static bool kvm_hyp_handle_dabt_low(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	if (!__populate_fault_info(vcpu))
+		return true;
+
+	if (static_branch_unlikely(&vgic_v2_cpuif_trap)) {
+		bool valid;
+
+		valid = kvm_vcpu_trap_get_fault_type(vcpu) == FSC_FAULT &&
+			kvm_vcpu_dabt_isvalid(vcpu) &&
+			!kvm_vcpu_abt_issea(vcpu) &&
+			!kvm_vcpu_abt_iss1tw(vcpu);
+
+		if (valid) {
+			int ret = __vgic_v2_perform_cpuif_access(vcpu);
+
+			if (ret == 1)
+				return true;
+
+			/* Promote an illegal access to an SError.*/
+			if (ret == -1)
+				*exit_code = ARM_EXCEPTION_EL1_SERROR;
+		}
+	}
+
+	return false;
+}
+
+typedef bool (*exit_handler_fn)(struct kvm_vcpu *, u64 *);
+
+static const exit_handler_fn *kvm_get_exit_handler_array(void);
+
+/*
+ * Allow the hypervisor to handle the exit with an exit handler if it has one.
+ *
+ * Returns true if the hypervisor handled the exit, and control should go back
+ * to the guest, or false if it hasn't.
+ */
+static inline bool kvm_hyp_handle_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	const exit_handler_fn *handlers = kvm_get_exit_handler_array();
+	exit_handler_fn fn;
+
+	fn = handlers[kvm_vcpu_trap_get_class(vcpu)];
+
+	if (fn)
+		return fn(vcpu, exit_code);
+
+	return false;
+}
+
 /*
  * Return true when we were able to fixup the guest exit and should return to
  * the guest, false when we should restore the host state and return to the
@@ -384,59 +458,9 @@ static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 	if (*exit_code != ARM_EXCEPTION_TRAP)
 		goto exit;
 
-	if (cpus_have_final_cap(ARM64_WORKAROUND_CAVIUM_TX2_219_TVM) &&
-	    kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_SYS64 &&
-	    handle_tx2_tvm(vcpu))
+	/* Check if there's an exit handler and allow it to handle the exit. */
+	if (kvm_hyp_handle_exit(vcpu, exit_code))
 		goto guest;
-
-	/*
-	 * We trap the first access to the FP/SIMD to save the host context
-	 * and restore the guest context lazily.
-	 * If FP/SIMD is not implemented, handle the trap and inject an
-	 * undefined instruction exception to the guest.
-	 * Similarly for trapped SVE accesses.
-	 */
-	if (__hyp_handle_fpsimd(vcpu))
-		goto guest;
-
-	if (__hyp_handle_ptrauth(vcpu))
-		goto guest;
-
-	if (!__populate_fault_info(vcpu))
-		goto guest;
-
-	if (static_branch_unlikely(&vgic_v2_cpuif_trap)) {
-		bool valid;
-
-		valid = kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_DABT_LOW &&
-			kvm_vcpu_trap_get_fault_type(vcpu) == FSC_FAULT &&
-			kvm_vcpu_dabt_isvalid(vcpu) &&
-			!kvm_vcpu_abt_issea(vcpu) &&
-			!kvm_vcpu_abt_iss1tw(vcpu);
-
-		if (valid) {
-			int ret = __vgic_v2_perform_cpuif_access(vcpu);
-
-			if (ret == 1)
-				goto guest;
-
-			/* Promote an illegal access to an SError.*/
-			if (ret == -1)
-				*exit_code = ARM_EXCEPTION_EL1_SERROR;
-
-			goto exit;
-		}
-	}
-
-	if (static_branch_unlikely(&vgic_v3_cpuif_trap) &&
-	    (kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_SYS64 ||
-	     kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_CP15_32)) {
-		int ret = __vgic_v3_perform_cpuif_access(vcpu);
-
-		if (ret == 1)
-			goto guest;
-	}
-
 exit:
 	/* Return to the host kernel and handle the exit */
 	return false;
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index a34b01cc8ab9e..4f3992a1aabd4 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -158,6 +158,22 @@ static void __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
 		write_sysreg(pmu->events_host, pmcntenset_el0);
 }
 
+static const exit_handler_fn hyp_exit_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= NULL,
+	[ESR_ELx_EC_CP15_32]		= kvm_hyp_handle_cp15_32,
+	[ESR_ELx_EC_SYS64]		= kvm_hyp_handle_sysreg,
+	[ESR_ELx_EC_SVE]		= kvm_hyp_handle_fpsimd,
+	[ESR_ELx_EC_FP_ASIMD]		= kvm_hyp_handle_fpsimd,
+	[ESR_ELx_EC_IABT_LOW]		= kvm_hyp_handle_iabt_low,
+	[ESR_ELx_EC_DABT_LOW]		= kvm_hyp_handle_dabt_low,
+	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
+};
+
+static const exit_handler_fn *kvm_get_exit_handler_array(void)
+{
+	return hyp_exit_handlers;
+}
+
 /* Switch to the guest for legacy non-VHE systems */
 int __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index ded2c66675f06..9aedc8afc8b96 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -96,6 +96,22 @@ void deactivate_traps_vhe_put(struct kvm_vcpu *vcpu)
 	__deactivate_traps_common(vcpu);
 }
 
+static const exit_handler_fn hyp_exit_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= NULL,
+	[ESR_ELx_EC_CP15_32]		= kvm_hyp_handle_cp15_32,
+	[ESR_ELx_EC_SYS64]		= kvm_hyp_handle_sysreg,
+	[ESR_ELx_EC_SVE]		= kvm_hyp_handle_fpsimd,
+	[ESR_ELx_EC_FP_ASIMD]		= kvm_hyp_handle_fpsimd,
+	[ESR_ELx_EC_IABT_LOW]		= kvm_hyp_handle_iabt_low,
+	[ESR_ELx_EC_DABT_LOW]		= kvm_hyp_handle_dabt_low,
+	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
+};
+
+static const exit_handler_fn *kvm_get_exit_handler_array(void)
+{
+	return hyp_exit_handlers;
+}
+
 /* Switch to the guest for VHE systems running in EL2 */
 static int __kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
 {
-- 
GitLab


From a72e44fd8023917ed74d5656ef9fe4ec5dd8da0d Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:29 +0100
Subject: [PATCH 0630/4878] UPSTREAM: KVM: arm64: Pass struct kvm to per-EC
 handlers

We need struct kvm to check for protected VMs to be able to pick
the right handlers for them in subsequent patches.

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-5-tabba@google.com
(cherry picked from commit 3b1a690eda0dc1891e8fc93991b122bff6fabf8c)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I806c6b96f894b22da284f3864cd1820c74a59275
---
 arch/arm64/kvm/hyp/include/hyp/switch.h | 4 ++--
 arch/arm64/kvm/hyp/nvhe/switch.c        | 2 +-
 arch/arm64/kvm/hyp/vhe/switch.c         | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 1e4177322be7b..481399bf9b94f 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -403,7 +403,7 @@ static bool kvm_hyp_handle_dabt_low(struct kvm_vcpu *vcpu, u64 *exit_code)
 
 typedef bool (*exit_handler_fn)(struct kvm_vcpu *, u64 *);
 
-static const exit_handler_fn *kvm_get_exit_handler_array(void);
+static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm);
 
 /*
  * Allow the hypervisor to handle the exit with an exit handler if it has one.
@@ -413,7 +413,7 @@ static const exit_handler_fn *kvm_get_exit_handler_array(void);
  */
 static inline bool kvm_hyp_handle_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
-	const exit_handler_fn *handlers = kvm_get_exit_handler_array();
+	const exit_handler_fn *handlers = kvm_get_exit_handler_array(kern_hyp_va(vcpu->kvm));
 	exit_handler_fn fn;
 
 	fn = handlers[kvm_vcpu_trap_get_class(vcpu)];
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 4f3992a1aabd4..8c9a0464be007 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -169,7 +169,7 @@ static const exit_handler_fn hyp_exit_handlers[] = {
 	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
 };
 
-static const exit_handler_fn *kvm_get_exit_handler_array(void)
+static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm)
 {
 	return hyp_exit_handlers;
 }
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 9aedc8afc8b96..f6fb97accf659 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -107,7 +107,7 @@ static const exit_handler_fn hyp_exit_handlers[] = {
 	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
 };
 
-static const exit_handler_fn *kvm_get_exit_handler_array(void)
+static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm)
 {
 	return hyp_exit_handlers;
 }
-- 
GitLab


From 6374824968875ef25b5fd2c0d14d8f8c72261f6a Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:30 +0100
Subject: [PATCH 0631/4878] UPSTREAM: KVM: arm64: Add missing field descriptor
 for MDCR_EL2

It's not currently used. Added for completeness.

No functional change intended.

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-6-tabba@google.com
(cherry picked from commit 53868390778270f2890621f4498a53587719a3ff)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I5285c895d38977e85311f61d12085d7c04608707
---
 arch/arm64/include/asm/kvm_arm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 327120c0089fe..a39fcf318c774 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -295,6 +295,7 @@
 #define MDCR_EL2_HPMFZO		(UL(1) << 29)
 #define MDCR_EL2_MTPME		(UL(1) << 28)
 #define MDCR_EL2_TDCC		(UL(1) << 27)
+#define MDCR_EL2_HLP		(UL(1) << 26)
 #define MDCR_EL2_HCCD		(UL(1) << 23)
 #define MDCR_EL2_TTRF		(UL(1) << 19)
 #define MDCR_EL2_HPMD		(UL(1) << 17)
-- 
GitLab


From 943e2e3312fcbd90dbfc5668a1113801ce2569c5 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:31 +0100
Subject: [PATCH 0632/4878] UPSTREAM: KVM: arm64: Simplify masking out MTE in
 feature id reg

Simplify code for hiding MTE support in feature id register when
MTE is not enabled/supported by KVM.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-7-tabba@google.com
(cherry picked from commit 16dd1fbb12f72effcd3539561c2a94aed3ab6581)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ida53f2393ec89e1f6bb89f6bdffdc6461fadbf5f
---
 arch/arm64/kvm/sys_regs.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 3aff06aafd0c8..3dfee9d1201cf 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1082,14 +1082,8 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
 		val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_CSV3), (u64)vcpu->kvm->arch.pfr0_csv3);
 		break;
 	case SYS_ID_AA64PFR1_EL1:
-		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_MTE);
-		if (kvm_has_mte(vcpu->kvm)) {
-			u64 pfr, mte;
-
-			pfr = read_sanitised_ftr_reg(SYS_ID_AA64PFR1_EL1);
-			mte = cpuid_feature_extract_unsigned_field(pfr, ID_AA64PFR1_MTE_SHIFT);
-			val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR1_MTE), mte);
-		}
+		if (!kvm_has_mte(vcpu->kvm))
+			val &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_MTE);
 		break;
 	case SYS_ID_AA64ISAR1_EL1:
 		if (!vcpu_has_ptrauth(vcpu))
-- 
GitLab


From 325eedfbd9bd2e8b744e68978da42c7fc7f38d78 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:32 +0100
Subject: [PATCH 0633/4878] UPSTREAM: KVM: arm64: Add handlers for protected VM
 System Registers

Add system register handlers for protected VMs. These cover Sys64
registers (including feature id registers), and debug.

No functional change intended as these are not hooked in yet to
the guest exit handlers introduced earlier. So when trapping is
triggered, the exit handlers let the host handle it, as before.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-8-tabba@google.com
(cherry picked from commit 6c30bfb18d0b7d09593f204c936493cfcd153956)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6b1f89f181739383c2354dab88f7f8044551febf
---
 arch/arm64/include/asm/kvm_fixed_config.h  | 195 ++++++++
 arch/arm64/include/asm/kvm_hyp.h           |   5 +
 arch/arm64/kvm/arm.c                       |   5 +
 arch/arm64/kvm/hyp/include/nvhe/sys_regs.h |  29 ++
 arch/arm64/kvm/hyp/nvhe/Makefile           |   2 +-
 arch/arm64/kvm/hyp/nvhe/setup.c            |   3 +
 arch/arm64/kvm/hyp/nvhe/switch.c           |   1 +
 arch/arm64/kvm/hyp/nvhe/sys_regs.c         | 498 +++++++++++++++++++++
 8 files changed, 737 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/include/asm/kvm_fixed_config.h
 create mode 100644 arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
 create mode 100644 arch/arm64/kvm/hyp/nvhe/sys_regs.c

diff --git a/arch/arm64/include/asm/kvm_fixed_config.h b/arch/arm64/include/asm/kvm_fixed_config.h
new file mode 100644
index 0000000000000..0ed06923f7e96
--- /dev/null
+++ b/arch/arm64/include/asm/kvm_fixed_config.h
@@ -0,0 +1,195 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 Google LLC
+ * Author: Fuad Tabba <tabba@google.com>
+ */
+
+#ifndef __ARM64_KVM_FIXED_CONFIG_H__
+#define __ARM64_KVM_FIXED_CONFIG_H__
+
+#include <asm/sysreg.h>
+
+/*
+ * This file contains definitions for features to be allowed or restricted for
+ * guest virtual machines, depending on the mode KVM is running in and on the
+ * type of guest that is running.
+ *
+ * The ALLOW masks represent a bitmask of feature fields that are allowed
+ * without any restrictions as long as they are supported by the system.
+ *
+ * The RESTRICT_UNSIGNED masks, if present, represent unsigned fields for
+ * features that are restricted to support at most the specified feature.
+ *
+ * If a feature field is not present in either, than it is not supported.
+ *
+ * The approach taken for protected VMs is to allow features that are:
+ * - Needed by common Linux distributions (e.g., floating point)
+ * - Trivial to support, e.g., supporting the feature does not introduce or
+ * require tracking of additional state in KVM
+ * - Cannot be trapped or prevent the guest from using anyway
+ */
+
+/*
+ * Allow for protected VMs:
+ * - Floating-point and Advanced SIMD
+ * - Data Independent Timing
+ */
+#define PVM_ID_AA64PFR0_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64PFR0_FP) | \
+	ARM64_FEATURE_MASK(ID_AA64PFR0_ASIMD) | \
+	ARM64_FEATURE_MASK(ID_AA64PFR0_DIT) \
+	)
+
+/*
+ * Restrict to the following *unsigned* features for protected VMs:
+ * - AArch64 guests only (no support for AArch32 guests):
+ *	AArch32 adds complexity in trap handling, emulation, condition codes,
+ *	etc...
+ * - RAS (v1)
+ *	Supported by KVM
+ */
+#define PVM_ID_AA64PFR0_RESTRICT_UNSIGNED (\
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL0), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL2), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL3), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_RAS), ID_AA64PFR0_RAS_V1) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Branch Target Identification
+ * - Speculative Store Bypassing
+ */
+#define PVM_ID_AA64PFR1_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64PFR1_BT) | \
+	ARM64_FEATURE_MASK(ID_AA64PFR1_SSBS) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Mixed-endian
+ * - Distinction between Secure and Non-secure Memory
+ * - Mixed-endian at EL0 only
+ * - Non-context synchronizing exception entry and exit
+ */
+#define PVM_ID_AA64MMFR0_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_BIGENDEL) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_SNSMEM) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_BIGENDEL0) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_EXS) \
+	)
+
+/*
+ * Restrict to the following *unsigned* features for protected VMs:
+ * - 40-bit IPA
+ * - 16-bit ASID
+ */
+#define PVM_ID_AA64MMFR0_RESTRICT_UNSIGNED (\
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64MMFR0_PARANGE), ID_AA64MMFR0_PARANGE_40) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64MMFR0_ASID), ID_AA64MMFR0_ASID_16) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Hardware translation table updates to Access flag and Dirty state
+ * - Number of VMID bits from CPU
+ * - Hierarchical Permission Disables
+ * - Privileged Access Never
+ * - SError interrupt exceptions from speculative reads
+ * - Enhanced Translation Synchronization
+ */
+#define PVM_ID_AA64MMFR1_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_HADBS) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_VMIDBITS) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_HPD) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_PAN) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_SPECSEI) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_ETS) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Common not Private translations
+ * - User Access Override
+ * - IESB bit in the SCTLR_ELx registers
+ * - Unaligned single-copy atomicity and atomic functions
+ * - ESR_ELx.EC value on an exception by read access to feature ID space
+ * - TTL field in address operations.
+ * - Break-before-make sequences when changing translation block size
+ * - E0PDx mechanism
+ */
+#define PVM_ID_AA64MMFR2_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_CNP) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_UAO) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_IESB) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_AT) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_IDS) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_TTL) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_BBM) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_E0PD) \
+	)
+
+/*
+ * No support for Scalable Vectors for protected VMs:
+ *	Requires additional support from KVM, e.g., context-switching and
+ *	trapping at EL2
+ */
+#define PVM_ID_AA64ZFR0_ALLOW (0ULL)
+
+/*
+ * No support for debug, including breakpoints, and watchpoints for protected
+ * VMs:
+ *	The Arm architecture mandates support for at least the Armv8 debug
+ *	architecture, which would include at least 2 hardware breakpoints and
+ *	watchpoints. Providing that support to protected guests adds
+ *	considerable state and complexity. Therefore, the reserved value of 0 is
+ *	used for debug-related fields.
+ */
+#define PVM_ID_AA64DFR0_ALLOW (0ULL)
+#define PVM_ID_AA64DFR1_ALLOW (0ULL)
+
+/*
+ * No support for implementation defined features.
+ */
+#define PVM_ID_AA64AFR0_ALLOW (0ULL)
+#define PVM_ID_AA64AFR1_ALLOW (0ULL)
+
+/*
+ * No restrictions on instructions implemented in AArch64.
+ */
+#define PVM_ID_AA64ISAR0_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_AES) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA1) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA2) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_CRC32) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_ATOMICS) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_RDM) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA3) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SM3) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SM4) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_DP) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_FHM) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_TS) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_TLB) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_RNDR) \
+	)
+
+#define PVM_ID_AA64ISAR1_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_DPB) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_APA) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_API) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_JSCVT) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_FCMA) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_LRCPC) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_GPI) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_FRINTTS) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_SB) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_SPECRES) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_BF16) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_DGH) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
+	)
+
+#endif /* __ARM64_KVM_FIXED_CONFIG_H__ */
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 657d0c94cf828..5afd14ab15b9f 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -115,7 +115,12 @@ int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
 void __noreturn __host_enter(struct kvm_cpu_context *host_ctxt);
 #endif
 
+extern u64 kvm_nvhe_sym(id_aa64pfr0_el1_sys_val);
+extern u64 kvm_nvhe_sym(id_aa64pfr1_el1_sys_val);
+extern u64 kvm_nvhe_sym(id_aa64isar0_el1_sys_val);
+extern u64 kvm_nvhe_sym(id_aa64isar1_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val);
+extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 
 #endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 67be557a27e2c..47f8a80d22cb6 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1799,8 +1799,13 @@ static int kvm_hyp_init_protection(u32 hyp_va_bits)
 	void *addr = phys_to_virt(hyp_mem_base);
 	int ret;
 
+	kvm_nvhe_sym(id_aa64pfr0_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1);
+	kvm_nvhe_sym(id_aa64pfr1_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64PFR1_EL1);
+	kvm_nvhe_sym(id_aa64isar0_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64ISAR0_EL1);
+	kvm_nvhe_sym(id_aa64isar1_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64ISAR1_EL1);
 	kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
 	kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
+	kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR2_EL1);
 
 	ret = create_hyp_mappings(addr, addr + hyp_mem_size, PAGE_HYP);
 	if (ret)
diff --git a/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h b/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
new file mode 100644
index 0000000000000..3288128738aa7
--- /dev/null
+++ b/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 Google LLC
+ * Author: Fuad Tabba <tabba@google.com>
+ */
+
+#ifndef __ARM64_KVM_NVHE_SYS_REGS_H__
+#define __ARM64_KVM_NVHE_SYS_REGS_H__
+
+#include <asm/kvm_host.h>
+
+u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64pfr1(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64zfr0(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64dfr0(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64dfr1(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64afr0(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64afr1(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64isar0(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64isar1(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64mmfr0(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64mmfr1(const struct kvm_vcpu *vcpu);
+u64 get_pvm_id_aa64mmfr2(const struct kvm_vcpu *vcpu);
+
+bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
+int kvm_check_pvm_sysreg_table(void);
+void inject_undef64(struct kvm_vcpu *vcpu);
+
+#endif /* __ARM64_KVM_NVHE_SYS_REGS_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 18dd2dbdd5bf9..0ff7733fcc161 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -14,7 +14,7 @@ lib-objs := $(addprefix ../../../lib/, $(lib-objs))
 
 obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \
 	 hyp-main.o hyp-smp.o psci-relay.o early_alloc.o stub.o page_alloc.o \
-	 cache.o setup.o mm.o mem_protect.o
+	 cache.o setup.o mm.o mem_protect.o sys_regs.o
 obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
 	 ../fpsimd.o ../hyp-entry.o ../exception.o ../pgtable.o
 obj-y += $(lib-objs)
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 57c27846320f4..c85ff64e63f21 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -14,6 +14,7 @@
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
+#include <nvhe/sys_regs.h>
 #include <nvhe/trap_handler.h>
 
 struct hyp_pool hpool;
@@ -260,6 +261,8 @@ int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
 	void (*fn)(phys_addr_t params_pa, void *finalize_fn_va);
 	int ret;
 
+	BUG_ON(kvm_check_pvm_sysreg_table());
+
 	if (!PAGE_ALIGNED(phys) || !PAGE_ALIGNED(size))
 		return -EINVAL;
 
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 8c9a0464be007..17d1a95125073 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -28,6 +28,7 @@
 #include <asm/thread_info.h>
 
 #include <nvhe/mem_protect.h>
+#include <nvhe/sys_regs.h>
 
 /* Non-VHE specific context */
 DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data);
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
new file mode 100644
index 0000000000000..6e3ea49af3025
--- /dev/null
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -0,0 +1,498 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 Google LLC
+ * Author: Fuad Tabba <tabba@google.com>
+ */
+
+#include <asm/kvm_asm.h>
+#include <asm/kvm_fixed_config.h>
+#include <asm/kvm_mmu.h>
+
+#include <hyp/adjust_pc.h>
+
+#include <nvhe/sys_regs.h>
+
+#include "../../sys_regs.h"
+
+/*
+ * Copies of the host's CPU features registers holding sanitized values at hyp.
+ */
+u64 id_aa64pfr0_el1_sys_val;
+u64 id_aa64pfr1_el1_sys_val;
+u64 id_aa64isar0_el1_sys_val;
+u64 id_aa64isar1_el1_sys_val;
+u64 id_aa64mmfr2_el1_sys_val;
+
+/*
+ * Inject an unknown/undefined exception to an AArch64 guest while most of its
+ * sysregs are live.
+ */
+void inject_undef64(struct kvm_vcpu *vcpu)
+{
+	u32 esr = (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT);
+
+	*vcpu_pc(vcpu) = read_sysreg_el2(SYS_ELR);
+	*vcpu_cpsr(vcpu) = read_sysreg_el2(SYS_SPSR);
+
+	vcpu->arch.flags |= (KVM_ARM64_EXCEPT_AA64_EL1 |
+			     KVM_ARM64_EXCEPT_AA64_ELx_SYNC |
+			     KVM_ARM64_PENDING_EXCEPTION);
+
+	__kvm_adjust_pc(vcpu);
+
+	write_sysreg_el1(esr, SYS_ESR);
+	write_sysreg_el1(read_sysreg_el2(SYS_ELR), SYS_ELR);
+	write_sysreg_el2(*vcpu_pc(vcpu), SYS_ELR);
+	write_sysreg_el2(*vcpu_cpsr(vcpu), SYS_SPSR);
+}
+
+/*
+ * Returns the restricted features values of the feature register based on the
+ * limitations in restrict_fields.
+ * A feature id field value of 0b0000 does not impose any restrictions.
+ * Note: Use only for unsigned feature field values.
+ */
+static u64 get_restricted_features_unsigned(u64 sys_reg_val,
+					    u64 restrict_fields)
+{
+	u64 value = 0UL;
+	u64 mask = GENMASK_ULL(ARM64_FEATURE_FIELD_BITS - 1, 0);
+
+	/*
+	 * According to the Arm Architecture Reference Manual, feature fields
+	 * use increasing values to indicate increases in functionality.
+	 * Iterate over the restricted feature fields and calculate the minimum
+	 * unsigned value between the one supported by the system, and what the
+	 * value is being restricted to.
+	 */
+	while (sys_reg_val && restrict_fields) {
+		value |= min(sys_reg_val & mask, restrict_fields & mask);
+		sys_reg_val &= ~mask;
+		restrict_fields &= ~mask;
+		mask <<= ARM64_FEATURE_FIELD_BITS;
+	}
+
+	return value;
+}
+
+/*
+ * Functions that return the value of feature id registers for protected VMs
+ * based on allowed features, system features, and KVM support.
+ */
+
+u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu)
+{
+	const struct kvm *kvm = (const struct kvm *)kern_hyp_va(vcpu->kvm);
+	u64 set_mask = 0;
+	u64 allow_mask = PVM_ID_AA64PFR0_ALLOW;
+
+	if (!vcpu_has_sve(vcpu))
+		allow_mask &= ~ARM64_FEATURE_MASK(ID_AA64PFR0_SVE);
+
+	set_mask |= get_restricted_features_unsigned(id_aa64pfr0_el1_sys_val,
+		PVM_ID_AA64PFR0_RESTRICT_UNSIGNED);
+
+	/* Spectre and Meltdown mitigation in KVM */
+	set_mask |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_CSV2),
+			       (u64)kvm->arch.pfr0_csv2);
+	set_mask |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_CSV3),
+			       (u64)kvm->arch.pfr0_csv3);
+
+	return (id_aa64pfr0_el1_sys_val & allow_mask) | set_mask;
+}
+
+u64 get_pvm_id_aa64pfr1(const struct kvm_vcpu *vcpu)
+{
+	const struct kvm *kvm = (const struct kvm *)kern_hyp_va(vcpu->kvm);
+	u64 allow_mask = PVM_ID_AA64PFR1_ALLOW;
+
+	if (!kvm_has_mte(kvm))
+		allow_mask &= ~ARM64_FEATURE_MASK(ID_AA64PFR1_MTE);
+
+	return id_aa64pfr1_el1_sys_val & allow_mask;
+}
+
+u64 get_pvm_id_aa64zfr0(const struct kvm_vcpu *vcpu)
+{
+	/*
+	 * No support for Scalable Vectors, therefore, hyp has no sanitized
+	 * copy of the feature id register.
+	 */
+	BUILD_BUG_ON(PVM_ID_AA64ZFR0_ALLOW != 0ULL);
+	return 0;
+}
+
+u64 get_pvm_id_aa64dfr0(const struct kvm_vcpu *vcpu)
+{
+	/*
+	 * No support for debug, including breakpoints, and watchpoints,
+	 * therefore, pKVM has no sanitized copy of the feature id register.
+	 */
+	BUILD_BUG_ON(PVM_ID_AA64DFR0_ALLOW != 0ULL);
+	return 0;
+}
+
+u64 get_pvm_id_aa64dfr1(const struct kvm_vcpu *vcpu)
+{
+	/*
+	 * No support for debug, therefore, hyp has no sanitized copy of the
+	 * feature id register.
+	 */
+	BUILD_BUG_ON(PVM_ID_AA64DFR1_ALLOW != 0ULL);
+	return 0;
+}
+
+u64 get_pvm_id_aa64afr0(const struct kvm_vcpu *vcpu)
+{
+	/*
+	 * No support for implementation defined features, therefore, hyp has no
+	 * sanitized copy of the feature id register.
+	 */
+	BUILD_BUG_ON(PVM_ID_AA64AFR0_ALLOW != 0ULL);
+	return 0;
+}
+
+u64 get_pvm_id_aa64afr1(const struct kvm_vcpu *vcpu)
+{
+	/*
+	 * No support for implementation defined features, therefore, hyp has no
+	 * sanitized copy of the feature id register.
+	 */
+	BUILD_BUG_ON(PVM_ID_AA64AFR1_ALLOW != 0ULL);
+	return 0;
+}
+
+u64 get_pvm_id_aa64isar0(const struct kvm_vcpu *vcpu)
+{
+	return id_aa64isar0_el1_sys_val & PVM_ID_AA64ISAR0_ALLOW;
+}
+
+u64 get_pvm_id_aa64isar1(const struct kvm_vcpu *vcpu)
+{
+	u64 allow_mask = PVM_ID_AA64ISAR1_ALLOW;
+
+	if (!vcpu_has_ptrauth(vcpu))
+		allow_mask &= ~(ARM64_FEATURE_MASK(ID_AA64ISAR1_APA) |
+				ARM64_FEATURE_MASK(ID_AA64ISAR1_API) |
+				ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA) |
+				ARM64_FEATURE_MASK(ID_AA64ISAR1_GPI));
+
+	return id_aa64isar1_el1_sys_val & allow_mask;
+}
+
+u64 get_pvm_id_aa64mmfr0(const struct kvm_vcpu *vcpu)
+{
+	u64 set_mask;
+
+	set_mask = get_restricted_features_unsigned(id_aa64mmfr0_el1_sys_val,
+		PVM_ID_AA64MMFR0_RESTRICT_UNSIGNED);
+
+	return (id_aa64mmfr0_el1_sys_val & PVM_ID_AA64MMFR0_ALLOW) | set_mask;
+}
+
+u64 get_pvm_id_aa64mmfr1(const struct kvm_vcpu *vcpu)
+{
+	return id_aa64mmfr1_el1_sys_val & PVM_ID_AA64MMFR1_ALLOW;
+}
+
+u64 get_pvm_id_aa64mmfr2(const struct kvm_vcpu *vcpu)
+{
+	return id_aa64mmfr2_el1_sys_val & PVM_ID_AA64MMFR2_ALLOW;
+}
+
+/* Read a sanitized cpufeature ID register by its sys_reg_desc. */
+static u64 read_id_reg(const struct kvm_vcpu *vcpu,
+		       struct sys_reg_desc const *r)
+{
+	u32 id = reg_to_encoding(r);
+
+	switch (id) {
+	case SYS_ID_AA64PFR0_EL1:
+		return get_pvm_id_aa64pfr0(vcpu);
+	case SYS_ID_AA64PFR1_EL1:
+		return get_pvm_id_aa64pfr1(vcpu);
+	case SYS_ID_AA64ZFR0_EL1:
+		return get_pvm_id_aa64zfr0(vcpu);
+	case SYS_ID_AA64DFR0_EL1:
+		return get_pvm_id_aa64dfr0(vcpu);
+	case SYS_ID_AA64DFR1_EL1:
+		return get_pvm_id_aa64dfr1(vcpu);
+	case SYS_ID_AA64AFR0_EL1:
+		return get_pvm_id_aa64afr0(vcpu);
+	case SYS_ID_AA64AFR1_EL1:
+		return get_pvm_id_aa64afr1(vcpu);
+	case SYS_ID_AA64ISAR0_EL1:
+		return get_pvm_id_aa64isar0(vcpu);
+	case SYS_ID_AA64ISAR1_EL1:
+		return get_pvm_id_aa64isar1(vcpu);
+	case SYS_ID_AA64MMFR0_EL1:
+		return get_pvm_id_aa64mmfr0(vcpu);
+	case SYS_ID_AA64MMFR1_EL1:
+		return get_pvm_id_aa64mmfr1(vcpu);
+	case SYS_ID_AA64MMFR2_EL1:
+		return get_pvm_id_aa64mmfr2(vcpu);
+	default:
+		/*
+		 * Should never happen because all cases are covered in
+		 * pvm_sys_reg_descs[].
+		 */
+		WARN_ON(1);
+		break;
+	}
+
+	return 0;
+}
+
+/*
+ * Accessor for AArch32 feature id registers.
+ *
+ * The value of these registers is "unknown" according to the spec if AArch32
+ * isn't supported.
+ */
+static bool pvm_access_id_aarch32(struct kvm_vcpu *vcpu,
+				  struct sys_reg_params *p,
+				  const struct sys_reg_desc *r)
+{
+	if (p->is_write) {
+		inject_undef64(vcpu);
+		return false;
+	}
+
+	/*
+	 * No support for AArch32 guests, therefore, pKVM has no sanitized copy
+	 * of AArch32 feature id registers.
+	 */
+	BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1),
+		     PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) > ID_AA64PFR0_ELx_64BIT_ONLY);
+
+	/* Use 0 for architecturally "unknown" values. */
+	p->regval = 0;
+	return true;
+}
+
+/*
+ * Accessor for AArch64 feature id registers.
+ *
+ * If access is allowed, set the regval to the protected VM's view of the
+ * register and return true.
+ * Otherwise, inject an undefined exception and return false.
+ */
+static bool pvm_access_id_aarch64(struct kvm_vcpu *vcpu,
+				  struct sys_reg_params *p,
+				  const struct sys_reg_desc *r)
+{
+	if (p->is_write) {
+		inject_undef64(vcpu);
+		return false;
+	}
+
+	p->regval = read_id_reg(vcpu, r);
+	return true;
+}
+
+/* Mark the specified system register as an AArch32 feature id register. */
+#define AARCH32(REG) { SYS_DESC(REG), .access = pvm_access_id_aarch32 }
+
+/* Mark the specified system register as an AArch64 feature id register. */
+#define AARCH64(REG) { SYS_DESC(REG), .access = pvm_access_id_aarch64 }
+
+/* Mark the specified system register as not being handled in hyp. */
+#define HOST_HANDLED(REG) { SYS_DESC(REG), .access = NULL }
+
+/*
+ * Architected system registers.
+ * Important: Must be sorted ascending by Op0, Op1, CRn, CRm, Op2
+ *
+ * NOTE: Anything not explicitly listed here is *restricted by default*, i.e.,
+ * it will lead to injecting an exception into the guest.
+ */
+static const struct sys_reg_desc pvm_sys_reg_descs[] = {
+	/* Cache maintenance by set/way operations are restricted. */
+
+	/* Debug and Trace Registers are restricted. */
+
+	/* AArch64 mappings of the AArch32 ID registers */
+	/* CRm=1 */
+	AARCH32(SYS_ID_PFR0_EL1),
+	AARCH32(SYS_ID_PFR1_EL1),
+	AARCH32(SYS_ID_DFR0_EL1),
+	AARCH32(SYS_ID_AFR0_EL1),
+	AARCH32(SYS_ID_MMFR0_EL1),
+	AARCH32(SYS_ID_MMFR1_EL1),
+	AARCH32(SYS_ID_MMFR2_EL1),
+	AARCH32(SYS_ID_MMFR3_EL1),
+
+	/* CRm=2 */
+	AARCH32(SYS_ID_ISAR0_EL1),
+	AARCH32(SYS_ID_ISAR1_EL1),
+	AARCH32(SYS_ID_ISAR2_EL1),
+	AARCH32(SYS_ID_ISAR3_EL1),
+	AARCH32(SYS_ID_ISAR4_EL1),
+	AARCH32(SYS_ID_ISAR5_EL1),
+	AARCH32(SYS_ID_MMFR4_EL1),
+	AARCH32(SYS_ID_ISAR6_EL1),
+
+	/* CRm=3 */
+	AARCH32(SYS_MVFR0_EL1),
+	AARCH32(SYS_MVFR1_EL1),
+	AARCH32(SYS_MVFR2_EL1),
+	AARCH32(SYS_ID_PFR2_EL1),
+	AARCH32(SYS_ID_DFR1_EL1),
+	AARCH32(SYS_ID_MMFR5_EL1),
+
+	/* AArch64 ID registers */
+	/* CRm=4 */
+	AARCH64(SYS_ID_AA64PFR0_EL1),
+	AARCH64(SYS_ID_AA64PFR1_EL1),
+	AARCH64(SYS_ID_AA64ZFR0_EL1),
+	AARCH64(SYS_ID_AA64DFR0_EL1),
+	AARCH64(SYS_ID_AA64DFR1_EL1),
+	AARCH64(SYS_ID_AA64AFR0_EL1),
+	AARCH64(SYS_ID_AA64AFR1_EL1),
+	AARCH64(SYS_ID_AA64ISAR0_EL1),
+	AARCH64(SYS_ID_AA64ISAR1_EL1),
+	AARCH64(SYS_ID_AA64MMFR0_EL1),
+	AARCH64(SYS_ID_AA64MMFR1_EL1),
+	AARCH64(SYS_ID_AA64MMFR2_EL1),
+
+	HOST_HANDLED(SYS_SCTLR_EL1),
+	HOST_HANDLED(SYS_ACTLR_EL1),
+	HOST_HANDLED(SYS_CPACR_EL1),
+
+	HOST_HANDLED(SYS_RGSR_EL1),
+	HOST_HANDLED(SYS_GCR_EL1),
+
+	/* Scalable Vector Registers are restricted. */
+
+	HOST_HANDLED(SYS_TTBR0_EL1),
+	HOST_HANDLED(SYS_TTBR1_EL1),
+	HOST_HANDLED(SYS_TCR_EL1),
+
+	HOST_HANDLED(SYS_APIAKEYLO_EL1),
+	HOST_HANDLED(SYS_APIAKEYHI_EL1),
+	HOST_HANDLED(SYS_APIBKEYLO_EL1),
+	HOST_HANDLED(SYS_APIBKEYHI_EL1),
+	HOST_HANDLED(SYS_APDAKEYLO_EL1),
+	HOST_HANDLED(SYS_APDAKEYHI_EL1),
+	HOST_HANDLED(SYS_APDBKEYLO_EL1),
+	HOST_HANDLED(SYS_APDBKEYHI_EL1),
+	HOST_HANDLED(SYS_APGAKEYLO_EL1),
+	HOST_HANDLED(SYS_APGAKEYHI_EL1),
+
+	HOST_HANDLED(SYS_AFSR0_EL1),
+	HOST_HANDLED(SYS_AFSR1_EL1),
+	HOST_HANDLED(SYS_ESR_EL1),
+
+	HOST_HANDLED(SYS_ERRIDR_EL1),
+	HOST_HANDLED(SYS_ERRSELR_EL1),
+	HOST_HANDLED(SYS_ERXFR_EL1),
+	HOST_HANDLED(SYS_ERXCTLR_EL1),
+	HOST_HANDLED(SYS_ERXSTATUS_EL1),
+	HOST_HANDLED(SYS_ERXADDR_EL1),
+	HOST_HANDLED(SYS_ERXMISC0_EL1),
+	HOST_HANDLED(SYS_ERXMISC1_EL1),
+
+	HOST_HANDLED(SYS_TFSR_EL1),
+	HOST_HANDLED(SYS_TFSRE0_EL1),
+
+	HOST_HANDLED(SYS_FAR_EL1),
+	HOST_HANDLED(SYS_PAR_EL1),
+
+	/* Performance Monitoring Registers are restricted. */
+
+	HOST_HANDLED(SYS_MAIR_EL1),
+	HOST_HANDLED(SYS_AMAIR_EL1),
+
+	/* Limited Ordering Regions Registers are restricted. */
+
+	HOST_HANDLED(SYS_VBAR_EL1),
+	HOST_HANDLED(SYS_DISR_EL1),
+
+	/* GIC CPU Interface registers are restricted. */
+
+	HOST_HANDLED(SYS_CONTEXTIDR_EL1),
+	HOST_HANDLED(SYS_TPIDR_EL1),
+
+	HOST_HANDLED(SYS_SCXTNUM_EL1),
+
+	HOST_HANDLED(SYS_CNTKCTL_EL1),
+
+	HOST_HANDLED(SYS_CCSIDR_EL1),
+	HOST_HANDLED(SYS_CLIDR_EL1),
+	HOST_HANDLED(SYS_CSSELR_EL1),
+	HOST_HANDLED(SYS_CTR_EL0),
+
+	/* Performance Monitoring Registers are restricted. */
+
+	HOST_HANDLED(SYS_TPIDR_EL0),
+	HOST_HANDLED(SYS_TPIDRRO_EL0),
+
+	HOST_HANDLED(SYS_SCXTNUM_EL0),
+
+	/* Activity Monitoring Registers are restricted. */
+
+	HOST_HANDLED(SYS_CNTP_TVAL_EL0),
+	HOST_HANDLED(SYS_CNTP_CTL_EL0),
+	HOST_HANDLED(SYS_CNTP_CVAL_EL0),
+
+	/* Performance Monitoring Registers are restricted. */
+
+	HOST_HANDLED(SYS_DACR32_EL2),
+	HOST_HANDLED(SYS_IFSR32_EL2),
+	HOST_HANDLED(SYS_FPEXC32_EL2),
+};
+
+/*
+ * Checks that the sysreg table is unique and in-order.
+ *
+ * Returns 0 if the table is consistent, or 1 otherwise.
+ */
+int kvm_check_pvm_sysreg_table(void)
+{
+	unsigned int i;
+
+	for (i = 1; i < ARRAY_SIZE(pvm_sys_reg_descs); i++) {
+		if (cmp_sys_reg(&pvm_sys_reg_descs[i-1], &pvm_sys_reg_descs[i]) >= 0)
+			return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * Handler for protected VM MSR, MRS or System instruction execution.
+ *
+ * Returns true if the hypervisor has handled the exit, and control should go
+ * back to the guest, or false if it hasn't, to be handled by the host.
+ */
+bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	const struct sys_reg_desc *r;
+	struct sys_reg_params params;
+	unsigned long esr = kvm_vcpu_get_esr(vcpu);
+	int Rt = kvm_vcpu_sys_get_rt(vcpu);
+
+	params = esr_sys64_to_params(esr);
+	params.regval = vcpu_get_reg(vcpu, Rt);
+
+	r = find_reg(&params, pvm_sys_reg_descs, ARRAY_SIZE(pvm_sys_reg_descs));
+
+	/* Undefined (RESTRICTED). */
+	if (r == NULL) {
+		inject_undef64(vcpu);
+		return true;
+	}
+
+	/* Handled by the host (HOST_HANDLED) */
+	if (r->access == NULL)
+		return false;
+
+	/* Handled by hyp: skip instruction if instructed to do so. */
+	if (r->access(vcpu, &params, r))
+		__kvm_skip_instr(vcpu);
+
+	if (!params.is_write)
+		vcpu_set_reg(vcpu, Rt, params.regval);
+
+	return true;
+}
-- 
GitLab


From 055490c66dfd2f296dfad88312337eb070910b9b Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:33 +0100
Subject: [PATCH 0634/4878] BACKPORT: KVM: arm64: Initialize trap registers for
 protected VMs

Protected VMs have more restricted features that need to be
trapped. Moreover, the host should not be trusted to set the
appropriate trapping registers and their values.

Initialize the trapping registers, i.e., hcr_el2, mdcr_el2, and
cptr_el2 at EL2 for protected guests, based on the values of the
guest's feature id registers.

No functional change intended as trap handlers introduced in the
previous patch are still not hooked in to the guest exit
handlers.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-9-tabba@google.com
(cherry picked from commit 2a0c343386ae1a6826e1b9d751bfc14f4711c2de)
[willdeacon@: Resolve conflict with hypercall definitions moving to an enum]
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I16390fa00dbbd8c08e4c84a6a718f8b743212b95
---
 arch/arm64/include/asm/kvm_asm.h              |   1 +
 arch/arm64/include/asm/kvm_host.h             |   2 +
 arch/arm64/kvm/arm.c                          |   8 +
 .../arm64/kvm/hyp/include/nvhe/trap_handler.h |   2 +
 arch/arm64/kvm/hyp/nvhe/Makefile              |   2 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |   9 +
 arch/arm64/kvm/hyp/nvhe/pkvm.c                | 186 ++++++++++++++++++
 7 files changed, 209 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/kvm/hyp/nvhe/pkvm.c

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 520276a459ce8..006ca3af082af 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -73,6 +73,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_write_vmcr,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs,
+	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_init_traps,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index d276bc897ad92..0fb9db5861c93 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -788,6 +788,8 @@ static inline bool kvm_vm_is_protected(struct kvm *kvm)
 	return false;
 }
 
+void kvm_init_protected_traps(struct kvm_vcpu *vcpu);
+
 int kvm_arm_vcpu_finalize(struct kvm_vcpu *vcpu, int feature);
 bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu);
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 47f8a80d22cb6..0a4b95b204eef 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -617,6 +617,14 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
 
 	ret = kvm_arm_pmu_v3_enable(vcpu);
 
+	/*
+	 * Initialize traps for protected VMs.
+	 * NOTE: Move to run in EL2 directly, rather than via a hypercall, once
+	 * the code is in place for first run initialization at EL2.
+	 */
+	if (kvm_vm_is_protected(kvm))
+		kvm_call_hyp_nvhe(__pkvm_vcpu_init_traps, vcpu);
+
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h b/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h
index 1e6d995968a1f..45a84f0ade04b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h
@@ -15,4 +15,6 @@
 #define DECLARE_REG(type, name, ctxt, reg)	\
 				type name = (type)cpu_reg(ctxt, (reg))
 
+void __pkvm_vcpu_init_traps(struct kvm_vcpu *vcpu);
+
 #endif /* __ARM64_KVM_NVHE_TRAP_HANDLER_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 0ff7733fcc161..2f8c165c60e49 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -14,7 +14,7 @@ lib-objs := $(addprefix ../../../lib/, $(lib-objs))
 
 obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \
 	 hyp-main.o hyp-smp.o psci-relay.o early_alloc.o stub.o page_alloc.o \
-	 cache.o setup.o mm.o mem_protect.o sys_regs.o
+	 cache.o setup.o mm.o mem_protect.o sys_regs.o pkvm.o
 obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
 	 ../fpsimd.o ../hyp-entry.o ../exception.o ../pgtable.o
 obj-y += $(lib-objs)
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 6d4a76a32ebca..b096bf009144f 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -160,6 +160,14 @@ static void handle___pkvm_prot_finalize(struct kvm_cpu_context *host_ctxt)
 {
 	cpu_reg(host_ctxt, 1) = __pkvm_prot_finalize();
 }
+
+static void handle___pkvm_vcpu_init_traps(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+
+	__pkvm_vcpu_init_traps(kern_hyp_va(vcpu));
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -187,6 +195,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__vgic_v3_write_vmcr),
 	HANDLE_FUNC(__vgic_v3_save_aprs),
 	HANDLE_FUNC(__vgic_v3_restore_aprs),
+	HANDLE_FUNC(__pkvm_vcpu_init_traps),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
new file mode 100644
index 0000000000000..633547cc1033d
--- /dev/null
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 Google LLC
+ * Author: Fuad Tabba <tabba@google.com>
+ */
+
+#include <linux/kvm_host.h>
+#include <linux/mm.h>
+#include <asm/kvm_fixed_config.h>
+#include <nvhe/sys_regs.h>
+#include <nvhe/trap_handler.h>
+
+/*
+ * Set trap register values based on features in ID_AA64PFR0.
+ */
+static void pvm_init_traps_aa64pfr0(struct kvm_vcpu *vcpu)
+{
+	const u64 feature_ids = get_pvm_id_aa64pfr0(vcpu);
+	u64 hcr_set = HCR_RW;
+	u64 hcr_clear = 0;
+	u64 cptr_set = 0;
+
+	/* Protected KVM does not support AArch32 guests. */
+	BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL0),
+		PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) != ID_AA64PFR0_ELx_64BIT_ONLY);
+	BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1),
+		PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) != ID_AA64PFR0_ELx_64BIT_ONLY);
+
+	/*
+	 * Linux guests assume support for floating-point and Advanced SIMD. Do
+	 * not change the trapping behavior for these from the KVM default.
+	 */
+	BUILD_BUG_ON(!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_FP),
+				PVM_ID_AA64PFR0_ALLOW));
+	BUILD_BUG_ON(!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_ASIMD),
+				PVM_ID_AA64PFR0_ALLOW));
+
+	/* Trap RAS unless all current versions are supported */
+	if (FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_RAS), feature_ids) <
+	    ID_AA64PFR0_RAS_V1P1) {
+		hcr_set |= HCR_TERR | HCR_TEA;
+		hcr_clear |= HCR_FIEN;
+	}
+
+	/* Trap AMU */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_AMU), feature_ids)) {
+		hcr_clear |= HCR_AMVOFFEN;
+		cptr_set |= CPTR_EL2_TAM;
+	}
+
+	/* Trap SVE */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_SVE), feature_ids))
+		cptr_set |= CPTR_EL2_TZ;
+
+	vcpu->arch.hcr_el2 |= hcr_set;
+	vcpu->arch.hcr_el2 &= ~hcr_clear;
+	vcpu->arch.cptr_el2 |= cptr_set;
+}
+
+/*
+ * Set trap register values based on features in ID_AA64PFR1.
+ */
+static void pvm_init_traps_aa64pfr1(struct kvm_vcpu *vcpu)
+{
+	const u64 feature_ids = get_pvm_id_aa64pfr1(vcpu);
+	u64 hcr_set = 0;
+	u64 hcr_clear = 0;
+
+	/* Memory Tagging: Trap and Treat as Untagged if not supported. */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR1_MTE), feature_ids)) {
+		hcr_set |= HCR_TID5;
+		hcr_clear |= HCR_DCT | HCR_ATA;
+	}
+
+	vcpu->arch.hcr_el2 |= hcr_set;
+	vcpu->arch.hcr_el2 &= ~hcr_clear;
+}
+
+/*
+ * Set trap register values based on features in ID_AA64DFR0.
+ */
+static void pvm_init_traps_aa64dfr0(struct kvm_vcpu *vcpu)
+{
+	const u64 feature_ids = get_pvm_id_aa64dfr0(vcpu);
+	u64 mdcr_set = 0;
+	u64 mdcr_clear = 0;
+	u64 cptr_set = 0;
+
+	/* Trap/constrain PMU */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMUVER), feature_ids)) {
+		mdcr_set |= MDCR_EL2_TPM | MDCR_EL2_TPMCR;
+		mdcr_clear |= MDCR_EL2_HPME | MDCR_EL2_MTPME |
+			      MDCR_EL2_HPMN_MASK;
+	}
+
+	/* Trap Debug */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DEBUGVER), feature_ids))
+		mdcr_set |= MDCR_EL2_TDRA | MDCR_EL2_TDA | MDCR_EL2_TDE;
+
+	/* Trap OS Double Lock */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DOUBLELOCK), feature_ids))
+		mdcr_set |= MDCR_EL2_TDOSA;
+
+	/* Trap SPE */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMSVER), feature_ids)) {
+		mdcr_set |= MDCR_EL2_TPMS;
+		mdcr_clear |= MDCR_EL2_E2PB_MASK << MDCR_EL2_E2PB_SHIFT;
+	}
+
+	/* Trap Trace Filter */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_TRACE_FILT), feature_ids))
+		mdcr_set |= MDCR_EL2_TTRF;
+
+	/* Trap Trace */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_TRACEVER), feature_ids))
+		cptr_set |= CPTR_EL2_TTA;
+
+	vcpu->arch.mdcr_el2 |= mdcr_set;
+	vcpu->arch.mdcr_el2 &= ~mdcr_clear;
+	vcpu->arch.cptr_el2 |= cptr_set;
+}
+
+/*
+ * Set trap register values based on features in ID_AA64MMFR0.
+ */
+static void pvm_init_traps_aa64mmfr0(struct kvm_vcpu *vcpu)
+{
+	const u64 feature_ids = get_pvm_id_aa64mmfr0(vcpu);
+	u64 mdcr_set = 0;
+
+	/* Trap Debug Communications Channel registers */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_FGT), feature_ids))
+		mdcr_set |= MDCR_EL2_TDCC;
+
+	vcpu->arch.mdcr_el2 |= mdcr_set;
+}
+
+/*
+ * Set trap register values based on features in ID_AA64MMFR1.
+ */
+static void pvm_init_traps_aa64mmfr1(struct kvm_vcpu *vcpu)
+{
+	const u64 feature_ids = get_pvm_id_aa64mmfr1(vcpu);
+	u64 hcr_set = 0;
+
+	/* Trap LOR */
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR1_LOR), feature_ids))
+		hcr_set |= HCR_TLOR;
+
+	vcpu->arch.hcr_el2 |= hcr_set;
+}
+
+/*
+ * Set baseline trap register values.
+ */
+static void pvm_init_trap_regs(struct kvm_vcpu *vcpu)
+{
+	const u64 hcr_trap_feat_regs = HCR_TID3;
+	const u64 hcr_trap_impdef = HCR_TACR | HCR_TIDCP | HCR_TID1;
+
+	/*
+	 * Always trap:
+	 * - Feature id registers: to control features exposed to guests
+	 * - Implementation-defined features
+	 */
+	vcpu->arch.hcr_el2 |= hcr_trap_feat_regs | hcr_trap_impdef;
+
+	/* Clear res0 and set res1 bits to trap potential new features. */
+	vcpu->arch.hcr_el2 &= ~(HCR_RES0);
+	vcpu->arch.mdcr_el2 &= ~(MDCR_EL2_RES0);
+	vcpu->arch.cptr_el2 |= CPTR_NVHE_EL2_RES1;
+	vcpu->arch.cptr_el2 &= ~(CPTR_NVHE_EL2_RES0);
+}
+
+/*
+ * Initialize trap register values for protected VMs.
+ */
+void __pkvm_vcpu_init_traps(struct kvm_vcpu *vcpu)
+{
+	pvm_init_trap_regs(vcpu);
+	pvm_init_traps_aa64pfr0(vcpu);
+	pvm_init_traps_aa64pfr1(vcpu);
+	pvm_init_traps_aa64dfr0(vcpu);
+	pvm_init_traps_aa64mmfr0(vcpu);
+	pvm_init_traps_aa64mmfr1(vcpu);
+}
-- 
GitLab


From 72201fd6ba322a577ca29728d1574fbe60420afd Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:34 +0100
Subject: [PATCH 0635/4878] UPSTREAM: KVM: arm64: Move sanitized copies of CPU
 features

Move the sanitized copies of the CPU feature registers to the
recently created sys_regs.c. This consolidates all copies in a
more relevant file.

No functional change intended.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-10-tabba@google.com
(cherry picked from commit 72e1be120eaaf82a58c81fcf173cdb1d7a5dcfbb)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4138d2c02c7f10427dea8c50b4e205a26d88b99b
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 6 ------
 arch/arm64/kvm/hyp/nvhe/sys_regs.c    | 2 ++
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 2a34dd8c8b0ad..c1a90dd022b8c 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -25,12 +25,6 @@ struct host_kvm host_kvm;
 
 static struct hyp_pool host_s2_pool;
 
-/*
- * Copies of the host's CPU features registers holding sanitized values.
- */
-u64 id_aa64mmfr0_el1_sys_val;
-u64 id_aa64mmfr1_el1_sys_val;
-
 const u8 pkvm_hyp_id = 1;
 
 static void *host_s2_zalloc_pages_exact(size_t size)
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 6e3ea49af3025..6bde2dc5205c8 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -21,6 +21,8 @@ u64 id_aa64pfr0_el1_sys_val;
 u64 id_aa64pfr1_el1_sys_val;
 u64 id_aa64isar0_el1_sys_val;
 u64 id_aa64isar1_el1_sys_val;
+u64 id_aa64mmfr0_el1_sys_val;
+u64 id_aa64mmfr1_el1_sys_val;
 u64 id_aa64mmfr2_el1_sys_val;
 
 /*
-- 
GitLab


From 70d78e70b9445cdbf536febcb1861cb81c8187bb Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:35 +0100
Subject: [PATCH 0636/4878] UPSTREAM: KVM: arm64: Trap access to pVM restricted
 features

Trap accesses to restricted features for VMs running in protected
mode.

Access to feature registers are emulated, and only supported
features are exposed to protected VMs.

Accesses to restricted registers as well as restricted
instructions are trapped, and an undefined exception is injected
into the protected guests, i.e., with EC = 0x0 (unknown reason).
This EC is the one used, according to the Arm Architecture
Reference Manual, for unallocated or undefined system registers
or instructions.

Only affects the functionality of protected VMs. Otherwise,
should not affect non-protected VMs when KVM is running in
protected mode.

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-11-tabba@google.com
(cherry picked from commit 1423afcb411780c7a6a68f801fdcfb6920ad6f06)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I380d0b748414254a2ae25eb3a10a5c2a34a7c6a9
---
 arch/arm64/kvm/hyp/nvhe/switch.c | 57 ++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 17d1a95125073..2c72c31e516ea 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -20,6 +20,7 @@
 #include <asm/kprobes.h>
 #include <asm/kvm_asm.h>
 #include <asm/kvm_emulate.h>
+#include <asm/kvm_fixed_config.h>
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 #include <asm/fpsimd.h>
@@ -159,6 +160,49 @@ static void __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
 		write_sysreg(pmu->events_host, pmcntenset_el0);
 }
 
+/**
+ * Handler for protected VM restricted exceptions.
+ *
+ * Inject an undefined exception into the guest and return true to indicate that
+ * the hypervisor has handled the exit, and control should go back to the guest.
+ */
+static bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	inject_undef64(vcpu);
+	return true;
+}
+
+/**
+ * Handler for protected VM MSR, MRS or System instruction execution in AArch64.
+ *
+ * Returns true if the hypervisor has handled the exit, and control should go
+ * back to the guest, or false if it hasn't.
+ */
+static bool kvm_handle_pvm_sys64(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	if (kvm_handle_pvm_sysreg(vcpu, exit_code))
+		return true;
+
+	return kvm_hyp_handle_sysreg(vcpu, exit_code);
+}
+
+/**
+ * Handler for protected floating-point and Advanced SIMD accesses.
+ *
+ * Returns true if the hypervisor has handled the exit, and control should go
+ * back to the guest, or false if it hasn't.
+ */
+static bool kvm_handle_pvm_fpsimd(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	/* Linux guests assume support for floating-point and Advanced SIMD. */
+	BUILD_BUG_ON(!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_FP),
+				PVM_ID_AA64PFR0_ALLOW));
+	BUILD_BUG_ON(!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_ASIMD),
+				PVM_ID_AA64PFR0_ALLOW));
+
+	return kvm_hyp_handle_fpsimd(vcpu, exit_code);
+}
+
 static const exit_handler_fn hyp_exit_handlers[] = {
 	[0 ... ESR_ELx_EC_MAX]		= NULL,
 	[ESR_ELx_EC_CP15_32]		= kvm_hyp_handle_cp15_32,
@@ -170,8 +214,21 @@ static const exit_handler_fn hyp_exit_handlers[] = {
 	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
 };
 
+static const exit_handler_fn pvm_exit_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= NULL,
+	[ESR_ELx_EC_SYS64]		= kvm_handle_pvm_sys64,
+	[ESR_ELx_EC_SVE]		= kvm_handle_pvm_restricted,
+	[ESR_ELx_EC_FP_ASIMD]		= kvm_handle_pvm_fpsimd,
+	[ESR_ELx_EC_IABT_LOW]		= kvm_hyp_handle_iabt_low,
+	[ESR_ELx_EC_DABT_LOW]		= kvm_hyp_handle_dabt_low,
+	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
+};
+
 static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm)
 {
+	if (unlikely(kvm_vm_is_protected(kvm)))
+		return pvm_exit_handlers;
+
 	return hyp_exit_handlers;
 }
 
-- 
GitLab


From e57b02181eb637d0366aaf419c2f341df2816065 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Sun, 10 Oct 2021 15:56:36 +0100
Subject: [PATCH 0637/4878] UPSTREAM: KVM: arm64: Handle protected guests at 32
 bits

Protected KVM does not support protected AArch32 guests. However,
it is possible for the guest to force run AArch32, potentially
causing problems. Add an extra check so that if the hypervisor
catches the guest doing that, it can prevent the guest from
running again by resetting vcpu->arch.target and returning
ARM_EXCEPTION_IL.

If this were to happen, The VMM can try and fix it by re-
initializing the vcpu with KVM_ARM_VCPU_INIT, however, this is
likely not possible for protected VMs.

Adapted from commit 22f553842b14 ("KVM: arm64: Handle Asymmetric
AArch32 systems")

Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010145636.1950948-12-tabba@google.com
(cherry picked from commit 5f39efc42052b042c4d7ba6fd77934e8de43e10c)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0bf557b32ef0a6bae510e4a97fbdb2ed0359355d
---
 arch/arm64/kvm/hyp/nvhe/switch.c | 34 ++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 2c72c31e516ea..f25b6353a598f 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -232,6 +232,37 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm)
 	return hyp_exit_handlers;
 }
 
+/*
+ * Some guests (e.g., protected VMs) are not be allowed to run in AArch32.
+ * The ARMv8 architecture does not give the hypervisor a mechanism to prevent a
+ * guest from dropping to AArch32 EL0 if implemented by the CPU. If the
+ * hypervisor spots a guest in such a state ensure it is handled, and don't
+ * trust the host to spot or fix it.  The check below is based on the one in
+ * kvm_arch_vcpu_ioctl_run().
+ *
+ * Returns false if the guest ran in AArch32 when it shouldn't have, and
+ * thus should exit to the host, or true if a the guest run loop can continue.
+ */
+static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	struct kvm *kvm = kern_hyp_va(vcpu->kvm);
+
+	if (kvm_vm_is_protected(kvm) && vcpu_mode_is_32bit(vcpu)) {
+		/*
+		 * As we have caught the guest red-handed, decide that it isn't
+		 * fit for purpose anymore by making the vcpu invalid. The VMM
+		 * can try and fix it by re-initializing the vcpu with
+		 * KVM_ARM_VCPU_INIT, however, this is likely not possible for
+		 * protected VMs.
+		 */
+		vcpu->arch.target = -1;
+		*exit_code = ARM_EXCEPTION_IL;
+		return false;
+	}
+
+	return true;
+}
+
 /* Switch to the guest for legacy non-VHE systems */
 int __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 {
@@ -294,6 +325,9 @@ int __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 		/* Jump in the fire! */
 		exit_code = __guest_enter(vcpu);
 
+		if (unlikely(!handle_aarch32_guest(vcpu, &exit_code)))
+			break;
+
 		/* And we're baaack! */
 	} while (fixup_guest_exit(vcpu, &exit_code));
 
-- 
GitLab


From 54dcb1a625f0dda9c3e27d81ec7e9bb9c8dce295 Mon Sep 17 00:00:00 2001
From: Alexandru Elisei <alexandru.elisei@arm.com>
Date: Mon, 11 Oct 2021 16:38:35 +0100
Subject: [PATCH 0638/4878] UPSTREAM: Documentation: admin-guide: Document side
 effects when pKVM is enabled

Recent changes to KVM for arm64 has made it impossible for the host to
hibernate or use kexec when protected mode is enabled via the kernel
command line.

There are people who rely on kexec (for example, developers who use kexec
as a quick way to test a new kernel), let's document this change in
behaviour, so it doesn't catch them by surprise and we have a place to
point people to if it does.

Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211011153835.291147-1-alexandru.elisei@arm.com
(cherry picked from commit 53e8ce137f7b34bd7a54429d18e0d0e5f56f54e8)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I674520b73423e9a7c705788853ad7d9e8f1be2e2
---
 Documentation/admin-guide/kernel-parameters.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 3df1208786074..1ea93a0f028fe 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2311,7 +2311,9 @@
 				   state is kept private from the host.
 				   Not valid if the kernel is running in EL2.
 
-			Defaults to VHE/nVHE based on hardware support.
+			Defaults to VHE/nVHE based on hardware support. Setting
+			mode to "protected" will disable kexec and hibernation
+			for the host.
 
 	kvm-arm.vgic_v3_group0_trap=
 			[KVM,ARM] Trap guest accesses to GICv3 group-0
-- 
GitLab


From f7c9b45b2848e7bc6ae57c5b2ab457633bd7cd7a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 12 Oct 2021 12:23:12 +0100
Subject: [PATCH 0639/4878] UPSTREAM: KVM: arm64: Fix reporting of endianess
 when the access originates at EL0

We currently check SCTLR_EL1.EE when computing the address of
a faulting guest access. However, the fault could have occured at
EL0, in which case the right bit to check would be SCTLR_EL1.E0E.

This is pretty unlikely to cause any issue in practice: You'd have
to have a guest with a LE EL1 and a BE EL0 (or the other way around),
and have mapped a device into the EL0 page tables.

Good luck with that!

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211012112312.1247467-1-maz@kernel.org
(cherry picked from commit 69adec18e94ff3ca20447916a3bd23ab1d06b878)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I63c040ceb6aeabb9bc70a51f43f2136ebf381a41
---
 arch/arm64/include/asm/kvm_emulate.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index fd418955e31e6..f4871e47b2d0b 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -396,7 +396,10 @@ static inline bool kvm_vcpu_is_be(struct kvm_vcpu *vcpu)
 	if (vcpu_mode_is_32bit(vcpu))
 		return !!(*vcpu_cpsr(vcpu) & PSR_AA32_E_BIT);
 
-	return !!(vcpu_read_sys_reg(vcpu, SCTLR_EL1) & (1 << 25));
+	if (vcpu_mode_priv(vcpu))
+		return !!(vcpu_read_sys_reg(vcpu, SCTLR_EL1) & SCTLR_ELx_EE);
+	else
+		return !!(vcpu_read_sys_reg(vcpu, SCTLR_EL1) & SCTLR_EL1_E0E);
 }
 
 static inline unsigned long vcpu_data_guest_to_host(struct kvm_vcpu *vcpu,
-- 
GitLab


From f4e2ec73893ef9259bd1429a2fee3d7610fdd568 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 16:09:06 +0100
Subject: [PATCH 0640/4878] UPSTREAM: KVM: arm64: Force ID_AA64PFR0_EL1.GIC=1
 when exposing a virtual GICv3

Until now, we always let ID_AA64PFR0_EL1.GIC reflect the value
visible on the host, even if we were running a GICv2-enabled VM
on a GICv3+compat host.

That's fine, but we also now have the case of a host that does not
expose ID_AA64PFR0_EL1.GIC==1 despite having a vGIC. Yes, this is
confusing. Thank you M1.

Let's go back to first principles and expose ID_AA64PFR0_EL1.GIC=1
when a GICv3 is exposed to the guest. This also hides a GICv4.1
CPU interface from the guest which has no business knowing about
the v4.1 extension.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-2-maz@kernel.org
(cherry picked from commit 562e530fd7707aad7fed953692d1835612238966)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iffb0a1fcd962413e7048f48efb5129c723ebaddc
---
 arch/arm64/kvm/sys_regs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 3dfee9d1201cf..e3ec1a44f94d8 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1080,6 +1080,11 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
 		val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_CSV2), (u64)vcpu->kvm->arch.pfr0_csv2);
 		val &= ~ARM64_FEATURE_MASK(ID_AA64PFR0_CSV3);
 		val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_CSV3), (u64)vcpu->kvm->arch.pfr0_csv3);
+		if (irqchip_in_kernel(vcpu->kvm) &&
+		    vcpu->kvm->arch.vgic.vgic_model == KVM_DEV_TYPE_ARM_VGIC_V3) {
+			val &= ~ARM64_FEATURE_MASK(ID_AA64PFR0_GIC);
+			val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_GIC), 1);
+		}
 		break;
 	case SYS_ID_AA64PFR1_EL1:
 		if (!kvm_has_mte(vcpu->kvm))
-- 
GitLab


From 70b935e8513acc85037052c895f3e41e2676032d Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 16:09:07 +0100
Subject: [PATCH 0641/4878] UPSTREAM: KVM: arm64: vgic-v3: Work around GICv3
 locally generated SErrors

The infamous M1 has a feature nobody else ever implemented,
in the form of the "GIC locally generated SError interrupts",
also known as SEIS for short.

These SErrors are generated when a guest does something that violates
the GIC state machine. It would have been simpler to just *ignore*
the damned thing, but that's not what this HW does. Oh well.

This part of of the architecture is also amazingly under-specified.
There is a whole 10 lines that describe the feature in a spec that
is 930 pages long, and some of these lines are factually wrong.
Oh, and it is deprecated, so the insentive to clarify it is low.

Now, the spec says that this should be a *virtual* SError when
HCR_EL2.AMO is set. As it turns out, that's not always the case
on this CPU, and the SError sometimes fires on the host as a
physical SError. Goodbye, cruel world. This clearly is a HW bug,
and it means that a guest can easily take the host down, on demand.

Thankfully, we have seen systems that were just as broken in the
past, and we have the perfect vaccine for it.

Apple M1, please meet the Cavium ThunderX workaround. All your
GIC accesses will be trapped, sanitised, and emulated. Only the
signalling aspect of the HW will be used. It won't be super speedy,
but it will at least be safe. You're most welcome.

Given that this has only ever been seen on this single implementation,
that the spec is unclear at best and that we cannot trust it to ever
be implemented correctly, gate the workaround solely on ICH_VTR_EL2.SEIS
being set.

Tested-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-3-maz@kernel.org
(cherry picked from commit df652bcf1136db7f16e486a204ba4b4fc4181759)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Icee1ac199b1e6850d6d487d386f2e6e6929c19ca
---
 arch/arm64/kvm/vgic/vgic-v3.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 960f51a8691f8..2773a520f6e69 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -673,6 +673,14 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
 		group1_trap = true;
 	}
 
+	if (kvm_vgic_global_state.ich_vtr_el2 & ICH_VTR_SEIS_MASK) {
+		kvm_info("GICv3 with locally generated SEI\n");
+
+		group0_trap = true;
+		group1_trap = true;
+		common_trap = true;
+	}
+
 	if (group0_trap || group1_trap || common_trap) {
 		kvm_info("GICv3 sysreg trapping enabled ([%s%s%s], reduced performance)\n",
 			 group0_trap ? "G0" : "",
-- 
GitLab


From 0b95abfacacdaecc86c30197317840db1060b57d Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 16:09:08 +0100
Subject: [PATCH 0642/4878] UPSTREAM: KVM: arm64: vgic-v3: Reduce common group
 trapping to ICV_DIR_EL1 when possible

On systems that advertise ICH_VTR_EL2.SEIS, we trap all GICv3 sysreg
accesses from the guest. From a performance perspective, this is OK
as long as the guest doesn't hammer the GICv3 CPU interface.

In most cases, this is fine, unless the guest actively uses
priorities and switches PMR_EL1 very often. Which is exactly what
happens when a Linux guest runs with irqchip.gicv3_pseudo_nmi=1.
In these condition, the performance plumets as we hit PMR each time
we mask/unmask interrupts. Not good.

There is however an opportunity for improvement. Careful reading
of the architecture specification indicates that the only GICv3
sysreg belonging to the common group (which contains the SGI
registers, PMR, DIR, CTLR and RPR) that is allowed to generate
a SError is DIR. Everything else is safe.

It is thus possible to substitute the trapping of all the common
group with just that of DIR if it supported by the implementation.
Yes, that's yet another optional bit of the architecture.
So let's just do that, as it leads to some impressive result on
the M1:

Without this change:
	bash-5.1# /host/home/maz/hackbench 100 process 1000
	Running with 100*40 (== 4000) tasks.
	Time: 56.596

With this change:
	bash-5.1# /host/home/maz/hackbench 100 process 1000
	Running with 100*40 (== 4000) tasks.
	Time: 8.649

which is a pretty convincing result.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20211010150910.2911495-4-maz@kernel.org
(cherry picked from commit 0924729b21bffdd0e13f29ea6256d299fc807cff)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I93eeac29ea47f1f03d0dc4dd97efe9e2ec18db58
---
 arch/arm64/include/asm/sysreg.h |  3 +++
 arch/arm64/kvm/vgic/vgic-v3.c   | 15 +++++++++++----
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index b57c41a80f237..b0dfcfa4bcd5c 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -1125,6 +1125,7 @@
 #define ICH_HCR_TC		(1 << 10)
 #define ICH_HCR_TALL0		(1 << 11)
 #define ICH_HCR_TALL1		(1 << 12)
+#define ICH_HCR_TDIR		(1 << 14)
 #define ICH_HCR_EOIcount_SHIFT	27
 #define ICH_HCR_EOIcount_MASK	(0x1f << ICH_HCR_EOIcount_SHIFT)
 
@@ -1157,6 +1158,8 @@
 #define ICH_VTR_SEIS_MASK	(1 << ICH_VTR_SEIS_SHIFT)
 #define ICH_VTR_A3V_SHIFT	21
 #define ICH_VTR_A3V_MASK	(1 << ICH_VTR_A3V_SHIFT)
+#define ICH_VTR_TDS_SHIFT	19
+#define ICH_VTR_TDS_MASK	(1 << ICH_VTR_TDS_SHIFT)
 
 #define ARM64_FEATURE_FIELD_BITS	4
 
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 2773a520f6e69..04f62c4b07fb5 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -15,6 +15,7 @@
 static bool group0_trap;
 static bool group1_trap;
 static bool common_trap;
+static bool dir_trap;
 static bool gicv4_enable;
 
 void vgic_v3_set_underflow(struct kvm_vcpu *vcpu)
@@ -296,6 +297,8 @@ void vgic_v3_enable(struct kvm_vcpu *vcpu)
 		vgic_v3->vgic_hcr |= ICH_HCR_TALL1;
 	if (common_trap)
 		vgic_v3->vgic_hcr |= ICH_HCR_TC;
+	if (dir_trap)
+		vgic_v3->vgic_hcr |= ICH_HCR_TDIR;
 }
 
 int vgic_v3_lpi_sync_pending_status(struct kvm *kvm, struct vgic_irq *irq)
@@ -678,14 +681,18 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
 
 		group0_trap = true;
 		group1_trap = true;
-		common_trap = true;
+		if (ich_vtr_el2 & ICH_VTR_TDS_MASK)
+			dir_trap = true;
+		else
+			common_trap = true;
 	}
 
-	if (group0_trap || group1_trap || common_trap) {
-		kvm_info("GICv3 sysreg trapping enabled ([%s%s%s], reduced performance)\n",
+	if (group0_trap || group1_trap || common_trap | dir_trap) {
+		kvm_info("GICv3 sysreg trapping enabled ([%s%s%s%s], reduced performance)\n",
 			 group0_trap ? "G0" : "",
 			 group1_trap ? "G1" : "",
-			 common_trap ? "C"  : "");
+			 common_trap ? "C"  : "",
+			 dir_trap    ? "D"  : "");
 		static_branch_enable(&vgic_v3_cpuif_trap);
 	}
 
-- 
GitLab


From b092b90a213dcd7503b9adad30945ef6d6e548f6 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 16:09:09 +0100
Subject: [PATCH 0643/4878] UPSTREAM: KVM: arm64: vgic-v3: Don't advertise
 ICC_CTLR_EL1.SEIS

Since we are trapping all sysreg accesses when ICH_VTR_EL2.SEIS
is set, and that we never deliver an SError when emulating
any of the GICv3 sysregs, don't advertise ICC_CTLR_EL1.SEIS.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-5-maz@kernel.org
(cherry picked from commit f87ab682722299cddf8cf5f7bc17053d70300ee0)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I6b4876d925b148a36b492fc23243d8f36a529fbb
---
 arch/arm64/kvm/hyp/vgic-v3-sr.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index 39f8f7f9227c3..b3b50de496a31 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -987,8 +987,6 @@ static void __vgic_v3_read_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt)
 	val = ((vtr >> 29) & 7) << ICC_CTLR_EL1_PRI_BITS_SHIFT;
 	/* IDbits */
 	val |= ((vtr >> 23) & 7) << ICC_CTLR_EL1_ID_BITS_SHIFT;
-	/* SEIS */
-	val |= ((vtr >> 22) & 1) << ICC_CTLR_EL1_SEIS_SHIFT;
 	/* A3V */
 	val |= ((vtr >> 21) & 1) << ICC_CTLR_EL1_A3V_SHIFT;
 	/* EOImode */
-- 
GitLab


From 2ae16afb1042278a6fa3546a130333deb2544de8 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 10 Oct 2021 16:09:10 +0100
Subject: [PATCH 0644/4878] UPSTREAM: KVM: arm64: vgic-v3: Align emulated cpuif
 LPI state machine with the pseudocode

Having realised that a virtual LPI does transition through an active
state that does not exist on bare metal, align the CPU interface
emulation with the behaviour specified in the architecture pseudocode.

The LPIs now transition to active on IAR read, and to inactive on
EOI write. Special care is taken not to increment the EOIcount for
an LPI that isn't present in the LRs.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211010150910.2911495-6-maz@kernel.org
(cherry picked from commit 9d449c71bd8f74282e84213c8f0b8328293ab0a7)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I93a517888cbcd56560920cb2cb9d671542591d7e
---
 arch/arm64/kvm/hyp/vgic-v3-sr.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index b3b50de496a31..20db2f281cf23 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -695,9 +695,7 @@ static void __vgic_v3_read_iar(struct kvm_vcpu *vcpu, u32 vmcr, int rt)
 		goto spurious;
 
 	lr_val &= ~ICH_LR_STATE;
-	/* No active state for LPIs */
-	if ((lr_val & ICH_LR_VIRTUAL_ID_MASK) <= VGIC_MAX_SPI)
-		lr_val |= ICH_LR_ACTIVE_BIT;
+	lr_val |= ICH_LR_ACTIVE_BIT;
 	__gic_v3_set_lr(lr_val, lr);
 	__vgic_v3_set_active_priority(lr_prio, vmcr, grp);
 	vcpu_set_reg(vcpu, rt, lr_val & ICH_LR_VIRTUAL_ID_MASK);
@@ -764,20 +762,18 @@ static void __vgic_v3_write_eoir(struct kvm_vcpu *vcpu, u32 vmcr, int rt)
 	/* Drop priority in any case */
 	act_prio = __vgic_v3_clear_highest_active_priority();
 
-	/* If EOIing an LPI, no deactivate to be performed */
-	if (vid >= VGIC_MIN_LPI)
-		return;
-
-	/* EOImode == 1, nothing to be done here */
-	if (vmcr & ICH_VMCR_EOIM_MASK)
-		return;
-
 	lr = __vgic_v3_find_active_lr(vcpu, vid, &lr_val);
 	if (lr == -1) {
-		__vgic_v3_bump_eoicount();
+		/* Do not bump EOIcount for LPIs that aren't in the LRs */
+		if (!(vid >= VGIC_MIN_LPI))
+			__vgic_v3_bump_eoicount();
 		return;
 	}
 
+	/* EOImode == 1 and not an LPI, nothing to be done here */
+	if ((vmcr & ICH_VMCR_EOIM_MASK) && !(vid >= VGIC_MIN_LPI))
+		return;
+
 	lr_prio = (lr_val & ICH_LR_PRIORITY_MASK) >> ICH_LR_PRIORITY_SHIFT;
 
 	/* If priorities or group do not match, the guest has fscked-up. */
-- 
GitLab


From 19b11377f8ee0d9909e7e1351997d5a14b5d01cc Mon Sep 17 00:00:00 2001
From: Jia He <justin.he@arm.com>
Date: Tue, 7 Sep 2021 20:31:11 +0800
Subject: [PATCH 0645/4878] UPSTREAM: KVM: arm64: vgic: Add memcg accounting to
 vgic allocations

Inspired by commit 254272ce6505 ("kvm: x86: Add memcg accounting to KVM
allocations"), it would be better to make arm64 vgic consistent with
common kvm codes.

The memory allocations of VM scope should be charged into VM process
cgroup, hence change GFP_KERNEL to GFP_KERNEL_ACCOUNT.

There remain a few cases since these allocations are global, not in VM
scope.

Signed-off-by: Jia He <justin.he@arm.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210907123112.10232-2-justin.he@arm.com
(cherry picked from commit 3ef231670b9e9001316a426e794b2c74b8f6b4f6)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id635a38791f61c7c04a9a1d255f0418e7da2bac8
---
 arch/arm64/kvm/vgic/vgic-init.c    |  2 +-
 arch/arm64/kvm/vgic/vgic-irqfd.c   |  2 +-
 arch/arm64/kvm/vgic/vgic-its.c     | 14 +++++++-------
 arch/arm64/kvm/vgic/vgic-mmio-v3.c |  2 +-
 arch/arm64/kvm/vgic/vgic-v4.c      |  2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c
index 340c51d87677c..0a06d06489709 100644
--- a/arch/arm64/kvm/vgic/vgic-init.c
+++ b/arch/arm64/kvm/vgic/vgic-init.c
@@ -134,7 +134,7 @@ static int kvm_vgic_dist_init(struct kvm *kvm, unsigned int nr_spis)
 	struct kvm_vcpu *vcpu0 = kvm_get_vcpu(kvm, 0);
 	int i;
 
-	dist->spis = kcalloc(nr_spis, sizeof(struct vgic_irq), GFP_KERNEL);
+	dist->spis = kcalloc(nr_spis, sizeof(struct vgic_irq), GFP_KERNEL_ACCOUNT);
 	if (!dist->spis)
 		return  -ENOMEM;
 
diff --git a/arch/arm64/kvm/vgic/vgic-irqfd.c b/arch/arm64/kvm/vgic/vgic-irqfd.c
index 79f8899b234cf..475059bacedf8 100644
--- a/arch/arm64/kvm/vgic/vgic-irqfd.c
+++ b/arch/arm64/kvm/vgic/vgic-irqfd.c
@@ -139,7 +139,7 @@ int kvm_vgic_setup_default_irq_routing(struct kvm *kvm)
 	u32 nr = dist->nr_spis;
 	int i, ret;
 
-	entries = kcalloc(nr, sizeof(*entries), GFP_KERNEL);
+	entries = kcalloc(nr, sizeof(*entries), GFP_KERNEL_ACCOUNT);
 	if (!entries)
 		return -ENOMEM;
 
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c
index ad55bb8cd30f5..089fc2ffcb43d 100644
--- a/arch/arm64/kvm/vgic/vgic-its.c
+++ b/arch/arm64/kvm/vgic/vgic-its.c
@@ -48,7 +48,7 @@ static struct vgic_irq *vgic_add_lpi(struct kvm *kvm, u32 intid,
 	if (irq)
 		return irq;
 
-	irq = kzalloc(sizeof(struct vgic_irq), GFP_KERNEL);
+	irq = kzalloc(sizeof(struct vgic_irq), GFP_KERNEL_ACCOUNT);
 	if (!irq)
 		return ERR_PTR(-ENOMEM);
 
@@ -332,7 +332,7 @@ int vgic_copy_lpi_list(struct kvm *kvm, struct kvm_vcpu *vcpu, u32 **intid_ptr)
 	 * we must be careful not to overrun the array.
 	 */
 	irq_count = READ_ONCE(dist->lpi_list_count);
-	intids = kmalloc_array(irq_count, sizeof(intids[0]), GFP_KERNEL);
+	intids = kmalloc_array(irq_count, sizeof(intids[0]), GFP_KERNEL_ACCOUNT);
 	if (!intids)
 		return -ENOMEM;
 
@@ -985,7 +985,7 @@ static int vgic_its_alloc_collection(struct vgic_its *its,
 	if (!vgic_its_check_id(its, its->baser_coll_table, coll_id, NULL))
 		return E_ITS_MAPC_COLLECTION_OOR;
 
-	collection = kzalloc(sizeof(*collection), GFP_KERNEL);
+	collection = kzalloc(sizeof(*collection), GFP_KERNEL_ACCOUNT);
 	if (!collection)
 		return -ENOMEM;
 
@@ -1029,7 +1029,7 @@ static struct its_ite *vgic_its_alloc_ite(struct its_device *device,
 {
 	struct its_ite *ite;
 
-	ite = kzalloc(sizeof(*ite), GFP_KERNEL);
+	ite = kzalloc(sizeof(*ite), GFP_KERNEL_ACCOUNT);
 	if (!ite)
 		return ERR_PTR(-ENOMEM);
 
@@ -1150,7 +1150,7 @@ static struct its_device *vgic_its_alloc_device(struct vgic_its *its,
 {
 	struct its_device *device;
 
-	device = kzalloc(sizeof(*device), GFP_KERNEL);
+	device = kzalloc(sizeof(*device), GFP_KERNEL_ACCOUNT);
 	if (!device)
 		return ERR_PTR(-ENOMEM);
 
@@ -1847,7 +1847,7 @@ void vgic_lpi_translation_cache_init(struct kvm *kvm)
 		struct vgic_translation_cache_entry *cte;
 
 		/* An allocation failure is not fatal */
-		cte = kzalloc(sizeof(*cte), GFP_KERNEL);
+		cte = kzalloc(sizeof(*cte), GFP_KERNEL_ACCOUNT);
 		if (WARN_ON(!cte))
 			break;
 
@@ -1888,7 +1888,7 @@ static int vgic_its_create(struct kvm_device *dev, u32 type)
 	if (type != KVM_DEV_TYPE_ARM_VGIC_ITS)
 		return -ENODEV;
 
-	its = kzalloc(sizeof(struct vgic_its), GFP_KERNEL);
+	its = kzalloc(sizeof(struct vgic_its), GFP_KERNEL_ACCOUNT);
 	if (!its)
 		return -ENOMEM;
 
diff --git a/arch/arm64/kvm/vgic/vgic-mmio-v3.c b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
index 09c6dda4329a1..4d94fc9726bf9 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
@@ -836,7 +836,7 @@ static int vgic_v3_alloc_redist_region(struct kvm *kvm, uint32_t index,
 	if (vgic_v3_rdist_overlap(kvm, base, size))
 		return -EINVAL;
 
-	rdreg = kzalloc(sizeof(*rdreg), GFP_KERNEL);
+	rdreg = kzalloc(sizeof(*rdreg), GFP_KERNEL_ACCOUNT);
 	if (!rdreg)
 		return -ENOMEM;
 
diff --git a/arch/arm64/kvm/vgic/vgic-v4.c b/arch/arm64/kvm/vgic/vgic-v4.c
index c1845d8f5f7e7..772dd15a22c7c 100644
--- a/arch/arm64/kvm/vgic/vgic-v4.c
+++ b/arch/arm64/kvm/vgic/vgic-v4.c
@@ -246,7 +246,7 @@ int vgic_v4_init(struct kvm *kvm)
 	nr_vcpus = atomic_read(&kvm->online_vcpus);
 
 	dist->its_vm.vpes = kcalloc(nr_vcpus, sizeof(*dist->its_vm.vpes),
-				    GFP_KERNEL);
+				    GFP_KERNEL_ACCOUNT);
 	if (!dist->its_vm.vpes)
 		return -ENOMEM;
 
-- 
GitLab


From e91c432900eefb4fe1955edfff5b0ab021668928 Mon Sep 17 00:00:00 2001
From: Jia He <justin.he@arm.com>
Date: Tue, 7 Sep 2021 20:31:12 +0800
Subject: [PATCH 0646/4878] UPSTREAM: KVM: arm64: Add memcg accounting to KVM
 allocations

Inspired by commit 254272ce6505 ("kvm: x86: Add memcg accounting to KVM
allocations"), it would be better to make arm64 KVM consistent with
common kvm codes.

The memory allocations of VM scope should be charged into VM process
cgroup, hence change GFP_KERNEL to GFP_KERNEL_ACCOUNT.

There remain a few cases since these allocations are global, not in VM
scope.

Signed-off-by: Jia He <justin.he@arm.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210907123112.10232-3-justin.he@arm.com
(cherry picked from commit 115bae923ac8bb29ee635e0ed6b4d5a3eec9371e)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I54f9a681446a07e0f0319ed8a07fb641ce1c7dcc
---
 arch/arm64/kvm/arm.c      | 6 ++++--
 arch/arm64/kvm/mmu.c      | 2 +-
 arch/arm64/kvm/pmu-emul.c | 2 +-
 arch/arm64/kvm/reset.c    | 2 +-
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 0a4b95b204eef..04a130095df72 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -288,10 +288,12 @@ long kvm_arch_dev_ioctl(struct file *filp,
 
 struct kvm *kvm_arch_alloc_vm(void)
 {
+	size_t sz = sizeof(struct kvm);
+
 	if (!has_vhe())
-		return kzalloc(sizeof(struct kvm), GFP_KERNEL);
+		return kzalloc(sz, GFP_KERNEL_ACCOUNT);
 
-	return vzalloc(sizeof(struct kvm));
+	return __vmalloc(sz, GFP_KERNEL_ACCOUNT | __GFP_HIGHMEM | __GFP_ZERO);
 }
 
 void kvm_arch_free_vm(struct kvm *kvm)
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index f16fe3dc5639f..d1d77d9d21c96 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -512,7 +512,7 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
 		return -EINVAL;
 	}
 
-	pgt = kzalloc(sizeof(*pgt), GFP_KERNEL);
+	pgt = kzalloc(sizeof(*pgt), GFP_KERNEL_ACCOUNT);
 	if (!pgt)
 		return -ENOMEM;
 
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index 2af3c37445e00..a5e4bbf5e68f9 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -978,7 +978,7 @@ int kvm_arm_pmu_v3_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr)
 		mutex_lock(&vcpu->kvm->lock);
 
 		if (!vcpu->kvm->arch.pmu_filter) {
-			vcpu->kvm->arch.pmu_filter = bitmap_alloc(nr_events, GFP_KERNEL);
+			vcpu->kvm->arch.pmu_filter = bitmap_alloc(nr_events, GFP_KERNEL_ACCOUNT);
 			if (!vcpu->kvm->arch.pmu_filter) {
 				mutex_unlock(&vcpu->kvm->lock);
 				return -ENOMEM;
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 5ce36b0a33439..acad22ebac12a 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -106,7 +106,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 		    vl > SVE_VL_ARCH_MAX))
 		return -EIO;
 
-	buf = kzalloc(SVE_SIG_REGS_SIZE(sve_vq_from_vl(vl)), GFP_KERNEL);
+	buf = kzalloc(SVE_SIG_REGS_SIZE(sve_vq_from_vl(vl)), GFP_KERNEL_ACCOUNT);
 	if (!buf)
 		return -ENOMEM;
 
-- 
GitLab


From c450ffa0424275d53e014e6d8f9d898797fd3404 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:36 +0100
Subject: [PATCH 0647/4878] UPSTREAM: KVM: arm64: Fix early exit ptrauth
 handling

The previous rework of the early exit code to provide an EC-based
decoding tree missed the fact that we have two trap paths for
ptrauth: the instructions (EC_PAC) and the sysregs (EC_SYS64).

Rework the handlers to call the ptrauth handling code on both
paths.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-2-maz@kernel.org
(cherry picked from commit 8a049862c38f0c78b0e01ab5d36db1bffc832675)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4c0637e413db9a5798e7739289b246553b1c1c52
---
 arch/arm64/kvm/hyp/include/hyp/switch.h | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 481399bf9b94f..4126926c3e06b 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -282,14 +282,6 @@ static inline bool handle_tx2_tvm(struct kvm_vcpu *vcpu)
 
 static inline bool esr_is_ptrauth_trap(u32 esr)
 {
-	u32 ec = ESR_ELx_EC(esr);
-
-	if (ec == ESR_ELx_EC_PAC)
-		return true;
-
-	if (ec != ESR_ELx_EC_SYS64)
-		return false;
-
 	switch (esr_sys64_to_sysreg(esr)) {
 	case SYS_APIAKEYLO_EL1:
 	case SYS_APIAKEYHI_EL1:
@@ -323,8 +315,7 @@ static bool kvm_hyp_handle_ptrauth(struct kvm_vcpu *vcpu, u64 *exit_code)
 	struct kvm_cpu_context *ctxt;
 	u64 val;
 
-	if (!vcpu_has_ptrauth(vcpu) ||
-	    !esr_is_ptrauth_trap(kvm_vcpu_get_esr(vcpu)))
+	if (!vcpu_has_ptrauth(vcpu))
 		return false;
 
 	ctxt = this_cpu_ptr(&kvm_hyp_ctxt);
@@ -353,6 +344,9 @@ static bool kvm_hyp_handle_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code)
 	    __vgic_v3_perform_cpuif_access(vcpu) == 1)
 		return true;
 
+	if (esr_is_ptrauth_trap(kvm_vcpu_get_esr(vcpu)))
+		return kvm_hyp_handle_ptrauth(vcpu, exit_code);
+
 	return false;
 }
 
-- 
GitLab


From 1d5ab00d4a8207fc98c5e608d7688d18d804e4e0 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:37 +0100
Subject: [PATCH 0648/4878] UPSTREAM: KVM: arm64: pkvm: Use a single function
 to expose all id-regs

Rather than exposing a whole set of helper functions to retrieve
individual ID registers, use the existing decoding tree and expose
a single helper instead.

This allow a number of functions to be made static, and we now
have a single entry point to maintain.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-3-maz@kernel.org
(cherry picked from commit ce75916749b8cb5ec795f1157a5c426f6765a48c)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I157fad2bc3ed6153f8adf88c99fcc0970fdff449
---
 arch/arm64/kvm/hyp/include/nvhe/sys_regs.h | 14 +-------
 arch/arm64/kvm/hyp/nvhe/pkvm.c             | 10 +++---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c         | 37 ++++++++++++----------
 3 files changed, 26 insertions(+), 35 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h b/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
index 3288128738aa7..8adc13227b1a3 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
@@ -9,19 +9,7 @@
 
 #include <asm/kvm_host.h>
 
-u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64pfr1(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64zfr0(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64dfr0(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64dfr1(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64afr0(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64afr1(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64isar0(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64isar1(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64mmfr0(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64mmfr1(const struct kvm_vcpu *vcpu);
-u64 get_pvm_id_aa64mmfr2(const struct kvm_vcpu *vcpu);
-
+u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
 bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
 int kvm_check_pvm_sysreg_table(void);
 void inject_undef64(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 633547cc1033d..62377fa8a4cbc 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -15,7 +15,7 @@
  */
 static void pvm_init_traps_aa64pfr0(struct kvm_vcpu *vcpu)
 {
-	const u64 feature_ids = get_pvm_id_aa64pfr0(vcpu);
+	const u64 feature_ids = pvm_read_id_reg(vcpu, SYS_ID_AA64PFR0_EL1);
 	u64 hcr_set = HCR_RW;
 	u64 hcr_clear = 0;
 	u64 cptr_set = 0;
@@ -62,7 +62,7 @@ static void pvm_init_traps_aa64pfr0(struct kvm_vcpu *vcpu)
  */
 static void pvm_init_traps_aa64pfr1(struct kvm_vcpu *vcpu)
 {
-	const u64 feature_ids = get_pvm_id_aa64pfr1(vcpu);
+	const u64 feature_ids = pvm_read_id_reg(vcpu, SYS_ID_AA64PFR1_EL1);
 	u64 hcr_set = 0;
 	u64 hcr_clear = 0;
 
@@ -81,7 +81,7 @@ static void pvm_init_traps_aa64pfr1(struct kvm_vcpu *vcpu)
  */
 static void pvm_init_traps_aa64dfr0(struct kvm_vcpu *vcpu)
 {
-	const u64 feature_ids = get_pvm_id_aa64dfr0(vcpu);
+	const u64 feature_ids = pvm_read_id_reg(vcpu, SYS_ID_AA64DFR0_EL1);
 	u64 mdcr_set = 0;
 	u64 mdcr_clear = 0;
 	u64 cptr_set = 0;
@@ -125,7 +125,7 @@ static void pvm_init_traps_aa64dfr0(struct kvm_vcpu *vcpu)
  */
 static void pvm_init_traps_aa64mmfr0(struct kvm_vcpu *vcpu)
 {
-	const u64 feature_ids = get_pvm_id_aa64mmfr0(vcpu);
+	const u64 feature_ids = pvm_read_id_reg(vcpu, SYS_ID_AA64MMFR0_EL1);
 	u64 mdcr_set = 0;
 
 	/* Trap Debug Communications Channel registers */
@@ -140,7 +140,7 @@ static void pvm_init_traps_aa64mmfr0(struct kvm_vcpu *vcpu)
  */
 static void pvm_init_traps_aa64mmfr1(struct kvm_vcpu *vcpu)
 {
-	const u64 feature_ids = get_pvm_id_aa64mmfr1(vcpu);
+	const u64 feature_ids = pvm_read_id_reg(vcpu, SYS_ID_AA64MMFR1_EL1);
 	u64 hcr_set = 0;
 
 	/* Trap LOR */
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 6bde2dc5205c8..f125d6a52880a 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -82,7 +82,7 @@ static u64 get_restricted_features_unsigned(u64 sys_reg_val,
  * based on allowed features, system features, and KVM support.
  */
 
-u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu)
 {
 	const struct kvm *kvm = (const struct kvm *)kern_hyp_va(vcpu->kvm);
 	u64 set_mask = 0;
@@ -103,7 +103,7 @@ u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu)
 	return (id_aa64pfr0_el1_sys_val & allow_mask) | set_mask;
 }
 
-u64 get_pvm_id_aa64pfr1(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64pfr1(const struct kvm_vcpu *vcpu)
 {
 	const struct kvm *kvm = (const struct kvm *)kern_hyp_va(vcpu->kvm);
 	u64 allow_mask = PVM_ID_AA64PFR1_ALLOW;
@@ -114,7 +114,7 @@ u64 get_pvm_id_aa64pfr1(const struct kvm_vcpu *vcpu)
 	return id_aa64pfr1_el1_sys_val & allow_mask;
 }
 
-u64 get_pvm_id_aa64zfr0(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64zfr0(const struct kvm_vcpu *vcpu)
 {
 	/*
 	 * No support for Scalable Vectors, therefore, hyp has no sanitized
@@ -124,7 +124,7 @@ u64 get_pvm_id_aa64zfr0(const struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-u64 get_pvm_id_aa64dfr0(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64dfr0(const struct kvm_vcpu *vcpu)
 {
 	/*
 	 * No support for debug, including breakpoints, and watchpoints,
@@ -134,7 +134,7 @@ u64 get_pvm_id_aa64dfr0(const struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-u64 get_pvm_id_aa64dfr1(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64dfr1(const struct kvm_vcpu *vcpu)
 {
 	/*
 	 * No support for debug, therefore, hyp has no sanitized copy of the
@@ -144,7 +144,7 @@ u64 get_pvm_id_aa64dfr1(const struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-u64 get_pvm_id_aa64afr0(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64afr0(const struct kvm_vcpu *vcpu)
 {
 	/*
 	 * No support for implementation defined features, therefore, hyp has no
@@ -154,7 +154,7 @@ u64 get_pvm_id_aa64afr0(const struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-u64 get_pvm_id_aa64afr1(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64afr1(const struct kvm_vcpu *vcpu)
 {
 	/*
 	 * No support for implementation defined features, therefore, hyp has no
@@ -164,12 +164,12 @@ u64 get_pvm_id_aa64afr1(const struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-u64 get_pvm_id_aa64isar0(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64isar0(const struct kvm_vcpu *vcpu)
 {
 	return id_aa64isar0_el1_sys_val & PVM_ID_AA64ISAR0_ALLOW;
 }
 
-u64 get_pvm_id_aa64isar1(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64isar1(const struct kvm_vcpu *vcpu)
 {
 	u64 allow_mask = PVM_ID_AA64ISAR1_ALLOW;
 
@@ -182,7 +182,7 @@ u64 get_pvm_id_aa64isar1(const struct kvm_vcpu *vcpu)
 	return id_aa64isar1_el1_sys_val & allow_mask;
 }
 
-u64 get_pvm_id_aa64mmfr0(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64mmfr0(const struct kvm_vcpu *vcpu)
 {
 	u64 set_mask;
 
@@ -192,22 +192,19 @@ u64 get_pvm_id_aa64mmfr0(const struct kvm_vcpu *vcpu)
 	return (id_aa64mmfr0_el1_sys_val & PVM_ID_AA64MMFR0_ALLOW) | set_mask;
 }
 
-u64 get_pvm_id_aa64mmfr1(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64mmfr1(const struct kvm_vcpu *vcpu)
 {
 	return id_aa64mmfr1_el1_sys_val & PVM_ID_AA64MMFR1_ALLOW;
 }
 
-u64 get_pvm_id_aa64mmfr2(const struct kvm_vcpu *vcpu)
+static u64 get_pvm_id_aa64mmfr2(const struct kvm_vcpu *vcpu)
 {
 	return id_aa64mmfr2_el1_sys_val & PVM_ID_AA64MMFR2_ALLOW;
 }
 
-/* Read a sanitized cpufeature ID register by its sys_reg_desc. */
-static u64 read_id_reg(const struct kvm_vcpu *vcpu,
-		       struct sys_reg_desc const *r)
+/* Read a sanitized cpufeature ID register by its encoding */
+u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id)
 {
-	u32 id = reg_to_encoding(r);
-
 	switch (id) {
 	case SYS_ID_AA64PFR0_EL1:
 		return get_pvm_id_aa64pfr0(vcpu);
@@ -245,6 +242,12 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static u64 read_id_reg(const struct kvm_vcpu *vcpu,
+		       struct sys_reg_desc const *r)
+{
+	return pvm_read_id_reg(vcpu, reg_to_encoding(r));
+}
+
 /*
  * Accessor for AArch32 feature id registers.
  *
-- 
GitLab


From f84594d89ae1759d556c67bd9ee90cea7432b902 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:38 +0100
Subject: [PATCH 0649/4878] UPSTREAM: KVM: arm64: pkvm: Make the ERR/ERX*_EL1
 registers RAZ/WI

The ERR*/ERX* registers should be handled as RAZ/WI, and there
should be no need to involve EL1 for that.

Add a helper that handles such registers, and repaint the sysreg
table to declare these registers as RAZ/WI.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-4-maz@kernel.org
(cherry picked from commit 8ffb41888334c1247bd9b4d6ff6c092a90e8d0b8)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I05e1542f2f6f4aa4fb4f7f273503ddd1799488c2
---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 33 ++++++++++++++++++++----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index f125d6a52880a..042a1c0be7e0e 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -248,6 +248,16 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
 	return pvm_read_id_reg(vcpu, reg_to_encoding(r));
 }
 
+/* Handler to RAZ/WI sysregs */
+static bool pvm_access_raz_wi(struct kvm_vcpu *vcpu, struct sys_reg_params *p,
+			      const struct sys_reg_desc *r)
+{
+	if (!p->is_write)
+		p->regval = 0;
+
+	return true;
+}
+
 /*
  * Accessor for AArch32 feature id registers.
  *
@@ -270,9 +280,7 @@ static bool pvm_access_id_aarch32(struct kvm_vcpu *vcpu,
 	BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1),
 		     PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) > ID_AA64PFR0_ELx_64BIT_ONLY);
 
-	/* Use 0 for architecturally "unknown" values. */
-	p->regval = 0;
-	return true;
+	return pvm_access_raz_wi(vcpu, p, r);
 }
 
 /*
@@ -301,6 +309,9 @@ static bool pvm_access_id_aarch64(struct kvm_vcpu *vcpu,
 /* Mark the specified system register as an AArch64 feature id register. */
 #define AARCH64(REG) { SYS_DESC(REG), .access = pvm_access_id_aarch64 }
 
+/* Mark the specified system register as Read-As-Zero/Write-Ignored */
+#define RAZ_WI(REG) { SYS_DESC(REG), .access = pvm_access_raz_wi }
+
 /* Mark the specified system register as not being handled in hyp. */
 #define HOST_HANDLED(REG) { SYS_DESC(REG), .access = NULL }
 
@@ -388,14 +399,14 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	HOST_HANDLED(SYS_AFSR1_EL1),
 	HOST_HANDLED(SYS_ESR_EL1),
 
-	HOST_HANDLED(SYS_ERRIDR_EL1),
-	HOST_HANDLED(SYS_ERRSELR_EL1),
-	HOST_HANDLED(SYS_ERXFR_EL1),
-	HOST_HANDLED(SYS_ERXCTLR_EL1),
-	HOST_HANDLED(SYS_ERXSTATUS_EL1),
-	HOST_HANDLED(SYS_ERXADDR_EL1),
-	HOST_HANDLED(SYS_ERXMISC0_EL1),
-	HOST_HANDLED(SYS_ERXMISC1_EL1),
+	RAZ_WI(SYS_ERRIDR_EL1),
+	RAZ_WI(SYS_ERRSELR_EL1),
+	RAZ_WI(SYS_ERXFR_EL1),
+	RAZ_WI(SYS_ERXCTLR_EL1),
+	RAZ_WI(SYS_ERXSTATUS_EL1),
+	RAZ_WI(SYS_ERXADDR_EL1),
+	RAZ_WI(SYS_ERXMISC0_EL1),
+	RAZ_WI(SYS_ERXMISC1_EL1),
 
 	HOST_HANDLED(SYS_TFSR_EL1),
 	HOST_HANDLED(SYS_TFSRE0_EL1),
-- 
GitLab


From be59fc27a627007d9a58285fb898845da9bd1581 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:39 +0100
Subject: [PATCH 0650/4878] UPSTREAM: KVM: arm64: pkvm: Drop AArch32-specific
 registers

All the SYS_*32_EL2 registers are AArch32-specific. Since we forbid
AArch32, there is no need to handle those in any way.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-5-maz@kernel.org
(cherry picked from commit 3c90cb15e2e66bcc526d25133747b2af747f6cd8)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I21b0eeb7d9558ccb1711db540988ba45df83a19f
---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 042a1c0be7e0e..e2b3a9e167da1 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -452,10 +452,6 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	HOST_HANDLED(SYS_CNTP_CVAL_EL0),
 
 	/* Performance Monitoring Registers are restricted. */
-
-	HOST_HANDLED(SYS_DACR32_EL2),
-	HOST_HANDLED(SYS_IFSR32_EL2),
-	HOST_HANDLED(SYS_FPEXC32_EL2),
 };
 
 /*
-- 
GitLab


From 4843dc629926ccc64cc71942be45ccd6aa3262fe Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:40 +0100
Subject: [PATCH 0651/4878] UPSTREAM: KVM: arm64: pkvm: Drop sysregs that
 should never be routed to the host

A bunch of system registers (most of them MM related) should never
trap to the host under any circumstance. Keep them close to our chest.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-6-maz@kernel.org
(cherry picked from commit f3d5ccabab20c1be5838831f460f320a12e5e2c9)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If57c2ad25f496e74fdee2e81369e4c430ca78410
---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 50 ------------------------------
 1 file changed, 50 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index e2b3a9e167da1..eb4ee2589316d 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -371,34 +371,8 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	AARCH64(SYS_ID_AA64MMFR1_EL1),
 	AARCH64(SYS_ID_AA64MMFR2_EL1),
 
-	HOST_HANDLED(SYS_SCTLR_EL1),
-	HOST_HANDLED(SYS_ACTLR_EL1),
-	HOST_HANDLED(SYS_CPACR_EL1),
-
-	HOST_HANDLED(SYS_RGSR_EL1),
-	HOST_HANDLED(SYS_GCR_EL1),
-
 	/* Scalable Vector Registers are restricted. */
 
-	HOST_HANDLED(SYS_TTBR0_EL1),
-	HOST_HANDLED(SYS_TTBR1_EL1),
-	HOST_HANDLED(SYS_TCR_EL1),
-
-	HOST_HANDLED(SYS_APIAKEYLO_EL1),
-	HOST_HANDLED(SYS_APIAKEYHI_EL1),
-	HOST_HANDLED(SYS_APIBKEYLO_EL1),
-	HOST_HANDLED(SYS_APIBKEYHI_EL1),
-	HOST_HANDLED(SYS_APDAKEYLO_EL1),
-	HOST_HANDLED(SYS_APDAKEYHI_EL1),
-	HOST_HANDLED(SYS_APDBKEYLO_EL1),
-	HOST_HANDLED(SYS_APDBKEYHI_EL1),
-	HOST_HANDLED(SYS_APGAKEYLO_EL1),
-	HOST_HANDLED(SYS_APGAKEYHI_EL1),
-
-	HOST_HANDLED(SYS_AFSR0_EL1),
-	HOST_HANDLED(SYS_AFSR1_EL1),
-	HOST_HANDLED(SYS_ESR_EL1),
-
 	RAZ_WI(SYS_ERRIDR_EL1),
 	RAZ_WI(SYS_ERRSELR_EL1),
 	RAZ_WI(SYS_ERXFR_EL1),
@@ -408,31 +382,12 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	RAZ_WI(SYS_ERXMISC0_EL1),
 	RAZ_WI(SYS_ERXMISC1_EL1),
 
-	HOST_HANDLED(SYS_TFSR_EL1),
-	HOST_HANDLED(SYS_TFSRE0_EL1),
-
-	HOST_HANDLED(SYS_FAR_EL1),
-	HOST_HANDLED(SYS_PAR_EL1),
-
 	/* Performance Monitoring Registers are restricted. */
 
-	HOST_HANDLED(SYS_MAIR_EL1),
-	HOST_HANDLED(SYS_AMAIR_EL1),
-
 	/* Limited Ordering Regions Registers are restricted. */
 
-	HOST_HANDLED(SYS_VBAR_EL1),
-	HOST_HANDLED(SYS_DISR_EL1),
-
 	/* GIC CPU Interface registers are restricted. */
 
-	HOST_HANDLED(SYS_CONTEXTIDR_EL1),
-	HOST_HANDLED(SYS_TPIDR_EL1),
-
-	HOST_HANDLED(SYS_SCXTNUM_EL1),
-
-	HOST_HANDLED(SYS_CNTKCTL_EL1),
-
 	HOST_HANDLED(SYS_CCSIDR_EL1),
 	HOST_HANDLED(SYS_CLIDR_EL1),
 	HOST_HANDLED(SYS_CSSELR_EL1),
@@ -440,11 +395,6 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 
 	/* Performance Monitoring Registers are restricted. */
 
-	HOST_HANDLED(SYS_TPIDR_EL0),
-	HOST_HANDLED(SYS_TPIDRRO_EL0),
-
-	HOST_HANDLED(SYS_SCXTNUM_EL0),
-
 	/* Activity Monitoring Registers are restricted. */
 
 	HOST_HANDLED(SYS_CNTP_TVAL_EL0),
-- 
GitLab


From 1d3fbee1fd0dfbcf7549bb43b1e2066a87165ef2 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:41 +0100
Subject: [PATCH 0652/4878] UPSTREAM: KVM: arm64: pkvm: Handle GICv3 traps as
 required

Forward accesses to the ICV_*SGI*_EL1 registers to EL1, and
emulate ICV_SRE_EL1 by returning a fixed value.

This should be enough to support GICv3 in a protected guest.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-7-maz@kernel.org
(cherry picked from commit cbca19738472be8156d854663ed724b01255c932)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I558b29e59e2eeb2a5f67ec195a11e938688aaf77
---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index eb4ee2589316d..a341bd8ef252c 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -4,6 +4,8 @@
  * Author: Fuad Tabba <tabba@google.com>
  */
 
+#include <linux/irqchip/arm-gic-v3.h>
+
 #include <asm/kvm_asm.h>
 #include <asm/kvm_fixed_config.h>
 #include <asm/kvm_mmu.h>
@@ -303,6 +305,17 @@ static bool pvm_access_id_aarch64(struct kvm_vcpu *vcpu,
 	return true;
 }
 
+static bool pvm_gic_read_sre(struct kvm_vcpu *vcpu,
+			     struct sys_reg_params *p,
+			     const struct sys_reg_desc *r)
+{
+	/* pVMs only support GICv3. 'nuf said. */
+	if (!p->is_write)
+		p->regval = ICC_SRE_EL1_DIB | ICC_SRE_EL1_DFB | ICC_SRE_EL1_SRE;
+
+	return true;
+}
+
 /* Mark the specified system register as an AArch32 feature id register. */
 #define AARCH32(REG) { SYS_DESC(REG), .access = pvm_access_id_aarch32 }
 
@@ -386,7 +399,10 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 
 	/* Limited Ordering Regions Registers are restricted. */
 
-	/* GIC CPU Interface registers are restricted. */
+	HOST_HANDLED(SYS_ICC_SGI1R_EL1),
+	HOST_HANDLED(SYS_ICC_ASGI1R_EL1),
+	HOST_HANDLED(SYS_ICC_SGI0R_EL1),
+	{ SYS_DESC(SYS_ICC_SRE_EL1), .access = pvm_gic_read_sre, },
 
 	HOST_HANDLED(SYS_CCSIDR_EL1),
 	HOST_HANDLED(SYS_CLIDR_EL1),
-- 
GitLab


From 7a1762a57e8d33c4a508956a7c32ce90d9a1d169 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:42 +0100
Subject: [PATCH 0653/4878] UPSTREAM: KVM: arm64: pkvm: Preserve pending SError
 on exit from AArch32

Don't drop a potential SError when a guest gets caught red-handed
running AArch32 code.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-8-maz@kernel.org
(cherry picked from commit 271b7286058da636ab6f5f47722e098ca3a0478b)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I088567169eed5d1fc3083e9356bebaa9cef8b120
---
 arch/arm64/kvm/hyp/nvhe/switch.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index f25b6353a598f..481c365ef144c 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -256,7 +256,8 @@ static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code)
 		 * protected VMs.
 		 */
 		vcpu->arch.target = -1;
-		*exit_code = ARM_EXCEPTION_IL;
+		*exit_code &= BIT(ARM_EXIT_WITH_SERROR_BIT);
+		*exit_code |= ARM_EXCEPTION_IL;
 		return false;
 	}
 
-- 
GitLab


From a978296a57795d4840f62be1fc106fb710514255 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:43 +0100
Subject: [PATCH 0654/4878] UPSTREAM: KVM: arm64: pkvm: Consolidate include
 files

kvm_fixed_config.h is pkvm specific, and would be better placed
near its users. At the same time, include/nvhe/sys_regs.h is now
almost empty.

Merge the two into arch/arm64/kvm/hyp/include/nvhe/fixed_config.h.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-9-maz@kernel.org
(cherry picked from commit 3061725d162cad0589b012fc6413c9dd0da8f02a)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ic49cfff8fd36a7b3b59d398ff1a17d32ccef9966
---
 .../hyp/include/nvhe/fixed_config.h}            |  5 +++++
 arch/arm64/kvm/hyp/include/nvhe/sys_regs.h      | 17 -----------------
 arch/arm64/kvm/hyp/nvhe/pkvm.c                  |  3 +--
 arch/arm64/kvm/hyp/nvhe/setup.c                 |  2 +-
 arch/arm64/kvm/hyp/nvhe/switch.c                |  3 +--
 arch/arm64/kvm/hyp/nvhe/sys_regs.c              |  3 +--
 6 files changed, 9 insertions(+), 24 deletions(-)
 rename arch/arm64/{include/asm/kvm_fixed_config.h => kvm/hyp/include/nvhe/fixed_config.h} (96%)
 delete mode 100644 arch/arm64/kvm/hyp/include/nvhe/sys_regs.h

diff --git a/arch/arm64/include/asm/kvm_fixed_config.h b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
similarity index 96%
rename from arch/arm64/include/asm/kvm_fixed_config.h
rename to arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
index 0ed06923f7e96..747fc79ae7844 100644
--- a/arch/arm64/include/asm/kvm_fixed_config.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
@@ -192,4 +192,9 @@
 	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
 	)
 
+u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
+bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
+int kvm_check_pvm_sysreg_table(void);
+void inject_undef64(struct kvm_vcpu *vcpu);
+
 #endif /* __ARM64_KVM_FIXED_CONFIG_H__ */
diff --git a/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h b/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
deleted file mode 100644
index 8adc13227b1a3..0000000000000
--- a/arch/arm64/kvm/hyp/include/nvhe/sys_regs.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2021 Google LLC
- * Author: Fuad Tabba <tabba@google.com>
- */
-
-#ifndef __ARM64_KVM_NVHE_SYS_REGS_H__
-#define __ARM64_KVM_NVHE_SYS_REGS_H__
-
-#include <asm/kvm_host.h>
-
-u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
-bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
-int kvm_check_pvm_sysreg_table(void);
-void inject_undef64(struct kvm_vcpu *vcpu);
-
-#endif /* __ARM64_KVM_NVHE_SYS_REGS_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 62377fa8a4cbc..99c8d8b73e704 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -6,8 +6,7 @@
 
 #include <linux/kvm_host.h>
 #include <linux/mm.h>
-#include <asm/kvm_fixed_config.h>
-#include <nvhe/sys_regs.h>
+#include <nvhe/fixed_config.h>
 #include <nvhe/trap_handler.h>
 
 /*
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index c85ff64e63f21..862c7b514e20d 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -10,11 +10,11 @@
 #include <asm/kvm_pgtable.h>
 
 #include <nvhe/early_alloc.h>
+#include <nvhe/fixed_config.h>
 #include <nvhe/gfp.h>
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
-#include <nvhe/sys_regs.h>
 #include <nvhe/trap_handler.h>
 
 struct hyp_pool hpool;
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 481c365ef144c..317dba6a018de 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -20,7 +20,6 @@
 #include <asm/kprobes.h>
 #include <asm/kvm_asm.h>
 #include <asm/kvm_emulate.h>
-#include <asm/kvm_fixed_config.h>
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 #include <asm/fpsimd.h>
@@ -28,8 +27,8 @@
 #include <asm/processor.h>
 #include <asm/thread_info.h>
 
+#include <nvhe/fixed_config.h>
 #include <nvhe/mem_protect.h>
-#include <nvhe/sys_regs.h>
 
 /* Non-VHE specific context */
 DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data);
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index a341bd8ef252c..052f885e65b24 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -7,12 +7,11 @@
 #include <linux/irqchip/arm-gic-v3.h>
 
 #include <asm/kvm_asm.h>
-#include <asm/kvm_fixed_config.h>
 #include <asm/kvm_mmu.h>
 
 #include <hyp/adjust_pc.h>
 
-#include <nvhe/sys_regs.h>
+#include <nvhe/fixed_config.h>
 
 #include "../../sys_regs.h"
 
-- 
GitLab


From 728d7deaaf2e3bef5b6f7d040690610d665204ab Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:44 +0100
Subject: [PATCH 0655/4878] UPSTREAM: KVM: arm64: pkvm: Move
 kvm_handle_pvm_restricted around

Place kvm_handle_pvm_restricted() next to its little friends such
as kvm_handle_pvm_sysreg().

This allows to make inject_undef64() static.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-10-maz@kernel.org
(cherry picked from commit 746bdeadc53b0d58fddea6442591f5ec3eeabe7d)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I685939f25878d46c954233763ee5c040b793ab8b
---
 arch/arm64/kvm/hyp/include/nvhe/fixed_config.h |  2 +-
 arch/arm64/kvm/hyp/nvhe/switch.c               | 12 ------------
 arch/arm64/kvm/hyp/nvhe/sys_regs.c             | 14 +++++++++++++-
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
index 747fc79ae7844..eea1f6a537230 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
@@ -194,7 +194,7 @@
 
 u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
 bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
+bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code);
 int kvm_check_pvm_sysreg_table(void);
-void inject_undef64(struct kvm_vcpu *vcpu);
 
 #endif /* __ARM64_KVM_FIXED_CONFIG_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 317dba6a018de..be6889e33b2b6 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -159,18 +159,6 @@ static void __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
 		write_sysreg(pmu->events_host, pmcntenset_el0);
 }
 
-/**
- * Handler for protected VM restricted exceptions.
- *
- * Inject an undefined exception into the guest and return true to indicate that
- * the hypervisor has handled the exit, and control should go back to the guest.
- */
-static bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code)
-{
-	inject_undef64(vcpu);
-	return true;
-}
-
 /**
  * Handler for protected VM MSR, MRS or System instruction execution in AArch64.
  *
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 052f885e65b24..3787ee6fb1a20 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -30,7 +30,7 @@ u64 id_aa64mmfr2_el1_sys_val;
  * Inject an unknown/undefined exception to an AArch64 guest while most of its
  * sysregs are live.
  */
-void inject_undef64(struct kvm_vcpu *vcpu)
+static void inject_undef64(struct kvm_vcpu *vcpu)
 {
 	u32 esr = (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT);
 
@@ -473,3 +473,15 @@ bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code)
 
 	return true;
 }
+
+/**
+ * Handler for protected VM restricted exceptions.
+ *
+ * Inject an undefined exception into the guest and return true to indicate that
+ * the hypervisor has handled the exit, and control should go back to the guest.
+ */
+bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	inject_undef64(vcpu);
+	return true;
+}
-- 
GitLab


From a6ee337e9088885ffe5edeecfe13b52b66b95df2 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:45 +0100
Subject: [PATCH 0656/4878] UPSTREAM: KVM: arm64: pkvm: Pass vpcu instead of
 kvm to kvm_get_exit_handler_array()

Passing a VM pointer around is odd, and results in extra work on
VHE. Follow the rest of the design that uses the vcpu instead, and
let the nVHE code look into the struct kvm as required.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-11-maz@kernel.org
(cherry picked from commit 0c7639cc838263b6e38b3af76755d574f15cdf41)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I729249b737cdfa9044a062623ebc38a151b65be9
---
 arch/arm64/kvm/hyp/include/hyp/switch.h | 4 ++--
 arch/arm64/kvm/hyp/nvhe/switch.c        | 4 ++--
 arch/arm64/kvm/hyp/vhe/switch.c         | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 4126926c3e06b..c6e98c7e918b1 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -397,7 +397,7 @@ static bool kvm_hyp_handle_dabt_low(struct kvm_vcpu *vcpu, u64 *exit_code)
 
 typedef bool (*exit_handler_fn)(struct kvm_vcpu *, u64 *);
 
-static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm);
+static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu);
 
 /*
  * Allow the hypervisor to handle the exit with an exit handler if it has one.
@@ -407,7 +407,7 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm);
  */
 static inline bool kvm_hyp_handle_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
-	const exit_handler_fn *handlers = kvm_get_exit_handler_array(kern_hyp_va(vcpu->kvm));
+	const exit_handler_fn *handlers = kvm_get_exit_handler_array(vcpu);
 	exit_handler_fn fn;
 
 	fn = handlers[kvm_vcpu_trap_get_class(vcpu)];
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index be6889e33b2b6..50c7d48e0fa0b 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -211,9 +211,9 @@ static const exit_handler_fn pvm_exit_handlers[] = {
 	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
 };
 
-static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm)
+static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
 {
-	if (unlikely(kvm_vm_is_protected(kvm)))
+	if (unlikely(kvm_vm_is_protected(kern_hyp_va(vcpu->kvm))))
 		return pvm_exit_handlers;
 
 	return hyp_exit_handlers;
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index f6fb97accf659..5a2cb5d9bc4b2 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -107,7 +107,7 @@ static const exit_handler_fn hyp_exit_handlers[] = {
 	[ESR_ELx_EC_PAC]		= kvm_hyp_handle_ptrauth,
 };
 
-static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm *kvm)
+static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
 {
 	return hyp_exit_handlers;
 }
-- 
GitLab


From 437b0bbd10415fe946c06636810504ed29a0978a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Oct 2021 13:03:46 +0100
Subject: [PATCH 0657/4878] UPSTREAM: KVM: arm64: pkvm: Give priority to
 standard traps over pvm handling

Checking for pvm handling first means that we cannot handle ptrauth
traps or apply any of the workarounds (GICv3 or TX2 #219).

Flip the order around.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211013120346.2926621-12-maz@kernel.org
(cherry picked from commit 07305590114af81817148d181f1eb0af294e40d6)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I89b2cf3dd330ddcde01c8da3dc42aac83be05c0b
---
 arch/arm64/kvm/hyp/nvhe/switch.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 50c7d48e0fa0b..c0e3fed26d930 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -167,10 +167,13 @@ static void __pmu_switch_to_host(struct kvm_cpu_context *host_ctxt)
  */
 static bool kvm_handle_pvm_sys64(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
-	if (kvm_handle_pvm_sysreg(vcpu, exit_code))
-		return true;
-
-	return kvm_hyp_handle_sysreg(vcpu, exit_code);
+	/*
+	 * Make sure we handle the exit for workarounds and ptrauth
+	 * before the pKVM handling, as the latter could decide to
+	 * UNDEF.
+	 */
+	return (kvm_hyp_handle_sysreg(vcpu, exit_code) ||
+		kvm_handle_pvm_sysreg(vcpu, exit_code));
 }
 
 /**
-- 
GitLab


From b2a2f767ac266ec3b5d10762457f7e4af99c8a12 Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Tue, 2 Nov 2021 16:26:49 -0700
Subject: [PATCH 0658/4878] ANDROID: Kleaf: common kernel public

.... so it can be referenced in mixed builds.

Test: build cuttlefish
Bug: 202075496
Change-Id: I8d79847c54c639fa619edf3280c021f02ba76645
Signed-off-by: Yifan Hong <elsk@google.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
---
 BUILD.bazel | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/BUILD.bazel b/BUILD.bazel
index 376d3fe2767e5..463a49d365792 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -11,6 +11,11 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+package(
+    default_visibility = [
+        "//visibility:public",
+    ],
+)
 
 load("//build/kleaf:common_kernels.bzl", "define_common_kernels")
 
-- 
GitLab


From e5559927232ef73035b5932d6b2fc01f677de782 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 16:38:32 -0700
Subject: [PATCH 0659/4878] ANDROID: scsi: ufs: Adjust ufshcd_uic_hibern8_*()
 declarations

Move the ufshcd_uic_hibern8_enter() and ufshcd_uic_hibern8_exit()
declarations to where these occur in the upstream code.

Bug: 204438323
Change-Id: Ia7fbee3828baefe53e11f7189522abe129479f43
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index efc3c88e57878..a3469c981f974 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1025,6 +1025,7 @@ int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
 int ufshcd_link_recovery(struct ufs_hba *hba);
 int ufshcd_make_hba_operational(struct ufs_hba *hba);
 void ufshcd_remove(struct ufs_hba *);
+int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
 int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
 void ufshcd_delay_us(unsigned long us, unsigned long tolerance);
 int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
@@ -1395,6 +1396,4 @@ static inline u8 ufshcd_scsi_to_upiu_lun(unsigned int scsi_lun)
 
 int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
 		     const char *prefix);
-int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
-int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);
 #endif /* End of Header */
-- 
GitLab


From 27a75f9751f77bdccd41aeb7f998c15fc420f8f6 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 16:02:55 -0700
Subject: [PATCH 0660/4878] ANDROID: scsi: ufs: Align ufshcd_init() with its
 upstream equivalent

This patch only changes whitespace. See also commit 4db7a2360597 ("scsi:
ufs: Fix concurrency of error handler and other error recovery paths").

Bug: 204438323
Change-Id: I18e1bf734f3f2b2a3451c62184d5177a2cb28a6c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ea35b629c2c17..a9e62474b1fab 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9317,7 +9317,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	hba->eh_wq = create_singlethread_workqueue(eh_wq_name);
 	if (!hba->eh_wq) {
 		dev_err(hba->dev, "%s: failed to create eh workqueue\n",
-				__func__);
+			__func__);
 		err = -ENOMEM;
 		goto out_disable;
 	}
-- 
GitLab


From daa0085d454241abd61158db5d97dca3cb013019 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 14:26:08 -0700
Subject: [PATCH 0661/4878] ANDROID: scsi: ufs: Move the ufs_mtk_host.hw_ver
 member variable

Align a structure definition with the upstream code. See also upstream
commit 638e6271cac2 ("scsi: ufs-mediatek: Add HS-G4 support").

Bug: 204438323
Change-Id: Ie4eac4b7088950fe813ab7236718ea872a91c085
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index ccfcc445f70ca..d6b110d2c177b 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -117,12 +117,12 @@ struct ufs_mtk_hw_ver {
 struct ufs_mtk_host {
 	struct phy *mphy;
 	struct regulator *reg_va09;
-	struct ufs_mtk_hw_ver hw_ver;
 	struct reset_control *hci_reset;
 	struct reset_control *unipro_reset;
 	struct reset_control *crypto_reset;
 	struct ufs_hba *hba;
 	struct ufs_mtk_crypt_cfg *crypt;
+	struct ufs_mtk_hw_ver hw_ver;
 	enum ufs_mtk_host_caps caps;
 	bool mphy_powered_on;
 	bool unipro_lpm;
-- 
GitLab


From 43031c379c196ed1ab049ed29295e1075bfaeedb Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 14:23:31 -0700
Subject: [PATCH 0662/4878] ANDROID: Revert "FROMGIT: ufs: ufs-exynos: use
 UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE"

Android commit d9ade6f2d96f ("FROMGIT: ufs: ufs-exynos: use
UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE") differs from the upstream
commit f1ef9047aaab ("scsi: ufs: ufs-exynos: Use
UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE"). Additionally, that upstream
commit has already been backported. See also Android commit
e74b237ef989 ("scsi: ufs: ufs-exynos: Use
UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE"). Hence this revert.

Bug: 204438323
Change-Id: I61242407e621e7f963a32d83daf63b30efddbfd9
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index d929bcdce39d7..0246ea99df7b3 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1261,8 +1261,7 @@ struct exynos_ufs_drv_data exynos_ufs_drvs = {
 				  EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL |
 				  EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX |
 				  EXYNOS_UFS_OPT_SKIP_CONNECTION_ESTAB |
-				  EXYNOS_UFS_OPT_USE_SW_HIBERN8_TIMER |
-				  UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE,
+				  EXYNOS_UFS_OPT_USE_SW_HIBERN8_TIMER,
 	.drv_init		= exynos7_ufs_drv_init,
 	.pre_link		= exynos7_ufs_pre_link,
 	.post_link		= exynos7_ufs_post_link,
-- 
GitLab


From 260ba8552663374b81fc292dc8adaccc163a76db Mon Sep 17 00:00:00 2001
From: Asutosh Das <asutoshd@codeaurora.org>
Date: Tue, 27 Oct 2020 12:10:37 -0700
Subject: [PATCH 0663/4878] UPSTREAM: scsi: ufs: qcom: Enable aggressive power
 collapse for ufs HBA

Enabling this capability to let HBA power-collapse more often to save
power.

Link: https://lore.kernel.org/r/1306284ab2215425ca0a3d9c802574cbd6d35ea7.1603825776.git.asutoshd@codeaurora.org
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 61906fd465c0dba963485a138626bde82dbc6f7e)
Bug: 204438323
Change-Id: I03e54c651d7735d9eaeb15dabea1dc6c5c54b413
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-qcom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 9fe3b93440f6b..a78475ffb9158 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -887,6 +887,7 @@ static void ufs_qcom_set_caps(struct ufs_hba *hba)
 	hba->caps |= UFSHCD_CAP_AUTO_BKOPS_SUSPEND;
 	hba->caps |= UFSHCD_CAP_WB_EN;
 	hba->caps |= UFSHCD_CAP_CRYPTO;
+	hba->caps |= UFSHCD_CAP_AGGR_POWER_COLLAPSE;
 
 	if (host->hw_ver.major >= 0x2) {
 		host->caps = UFS_QCOM_CAP_QUNIPRO |
-- 
GitLab


From c098fbf4cf6cba67bde1bdbc5a5035fd19f83742 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 3 Nov 2020 16:14:02 +0200
Subject: [PATCH 0664/4878] UPSTREAM: scsi: ufs: Add DeepSleep feature

DeepSleep is a UFS v3.1 feature that achieves the lowest power consumption
of the device, apart from power off.

In DeepSleep mode, no commands are accepted, and the only way to exit is
using a hardware reset or power cycle.

This patch assumes that if a power cycle was an option, then power off
would be preferable, so only exit via a hardware reset is supported.

Drivers that wish to support DeepSleep need to set a new capability flag
UFSHCD_CAP_DEEPSLEEP and provide a hardware reset via the existing
 ->device_reset() callback.

It is assumed that UFS devices with wspecversion >= 0x310 support
DeepSleep.

[mkp: dropped sysfs ABI doc due to conflicts]

Link: https://lore.kernel.org/r/20201103141403.2142-2-adrian.hunter@intel.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit fe1d4c2ebcae994dffe8673cc3cba10102d15d11)
Bug: 204438323
Change-Id: I054995d84b1d92b696ab9d8dda0946c1bbe47f92
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c |  7 +++++++
 drivers/scsi/ufs/ufs.h       |  1 +
 drivers/scsi/ufs/ufshcd.c    | 38 ++++++++++++++++++++++++++++++++++--
 drivers/scsi/ufs/ufshcd.h    | 17 +++++++++++++++-
 include/trace/events/ufs.h   |  3 ++-
 5 files changed, 62 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 4c02591058c6b..fa5e0ddcbd7b3 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -30,6 +30,7 @@ static const char *ufschd_ufs_dev_pwr_mode_to_string(
 	case UFS_ACTIVE_PWR_MODE:	return "ACTIVE";
 	case UFS_SLEEP_PWR_MODE:	return "SLEEP";
 	case UFS_POWERDOWN_PWR_MODE:	return "POWERDOWN";
+	case UFS_DEEPSLEEP_PWR_MODE:	return "DEEPSLEEP";
 	default:			return "UNKNOWN";
 	}
 }
@@ -40,6 +41,7 @@ static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev,
 					     bool rpm)
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
+	struct ufs_dev_info *dev_info = &hba->dev_info;
 	unsigned long flags, value;
 
 	if (kstrtoul(buf, 0, &value))
@@ -48,6 +50,11 @@ static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev,
 	if (value >= UFS_PM_LVL_MAX)
 		return -EINVAL;
 
+	if (ufs_pm_lvl_states[value].dev_state == UFS_DEEPSLEEP_PWR_MODE &&
+	    (!(hba->caps & UFSHCD_CAP_DEEPSLEEP) ||
+	     !(dev_info->wspecversion >= 0x310)))
+		return -EINVAL;
+
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	if (rpm)
 		hba->rpm_lvl = value;
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 1ee80cda3d01c..6f4943e1d43e2 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -456,6 +456,7 @@ enum ufs_dev_pwr_mode {
 	UFS_ACTIVE_PWR_MODE	= 1,
 	UFS_SLEEP_PWR_MODE	= 2,
 	UFS_POWERDOWN_PWR_MODE	= 3,
+	UFS_DEEPSLEEP_PWR_MODE	= 4,
 };
 
 #define UFS_WB_BUF_REMAIN_PERCENT(val) ((val) / 10)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a9e62474b1fab..4123459a99813 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -168,6 +168,11 @@ struct ufs_pm_lvl_states ufs_pm_lvl_states[] = {
 	{UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE},
 	{UFS_POWERDOWN_PWR_MODE, UIC_LINK_HIBERN8_STATE},
 	{UFS_POWERDOWN_PWR_MODE, UIC_LINK_OFF_STATE},
+	/*
+	 * For DeepSleep, the link is first put in hibern8 and then off.
+	 * Leaving the link in hibern8 is not supported.
+	 */
+	{UFS_DEEPSLEEP_PWR_MODE, UIC_LINK_OFF_STATE},
 };
 
 static inline enum ufs_dev_pwr_mode
@@ -8544,7 +8549,8 @@ static int ufshcd_link_state_transition(struct ufs_hba *hba,
 	}
 	/*
 	 * If autobkops is enabled, link can't be turned off because
-	 * turning off the link would also turn off the device.
+	 * turning off the link would also turn off the device, except in the
+	 * case of DeepSleep where the device is expected to remain powered.
 	 */
 	else if ((req_link_state == UIC_LINK_OFF_STATE) &&
 		 (!check_for_bkops || !hba->auto_bkops_enabled)) {
@@ -8554,6 +8560,9 @@ static int ufshcd_link_state_transition(struct ufs_hba *hba,
 		 * put the link in low power mode is to send the DME end point
 		 * to device and then send the DME reset command to local
 		 * unipro. But putting the link in hibern8 is much faster.
+		 *
+		 * Note also that putting the link in Hibern8 is a requirement
+		 * for entering DeepSleep.
 		 */
 		ret = ufshcd_uic_hibern8_enter(hba);
 		if (ret) {
@@ -8686,6 +8695,7 @@ static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba)
 static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 {
 	int ret = 0;
+	int check_for_bkops;
 	enum ufs_pm_level pm_lvl;
 	enum ufs_dev_pwr_mode req_dev_pwr_mode;
 	enum uic_link_state req_link_state;
@@ -8771,7 +8781,12 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		}
 	}
 
-	ret = ufshcd_link_state_transition(hba, req_link_state, 1);
+	/*
+	 * In the case of DeepSleep, the device is expected to remain powered
+	 * with the link off, so do not check for bkops.
+	 */
+	check_for_bkops = !ufshcd_is_ufs_dev_deepsleep(hba);
+	ret = ufshcd_link_state_transition(hba, req_link_state, check_for_bkops);
 	if (ret)
 		goto set_dev_active;
 
@@ -8806,11 +8821,25 @@ disable_clks:
 
 set_link_active:
 	ufshcd_vreg_set_hpm(hba);
+	/*
+	 * Device hardware reset is required to exit DeepSleep. Also, for
+	 * DeepSleep, the link is off so host reset and restore will be done
+	 * further below.
+	 */
+	if (ufshcd_is_ufs_dev_deepsleep(hba)) {
+		ufshcd_vops_device_reset(hba);
+		WARN_ON(!ufshcd_is_link_off(hba));
+	}
 	if (ufshcd_is_link_hibern8(hba) && !ufshcd_uic_hibern8_exit(hba))
 		ufshcd_set_link_active(hba);
 	else if (ufshcd_is_link_off(hba))
 		ufshcd_host_reset_and_restore(hba);
 set_dev_active:
+	/* Can also get here needing to exit DeepSleep */
+	if (ufshcd_is_ufs_dev_deepsleep(hba)) {
+		ufshcd_vops_device_reset(hba);
+		ufshcd_host_reset_and_restore(hba);
+	}
 	if (!ufshcd_set_dev_pwr_mode(hba, UFS_ACTIVE_PWR_MODE))
 		ufshcd_disable_auto_bkops(hba);
 enable_gating:
@@ -8874,6 +8903,9 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	if (ret)
 		goto disable_irq_and_vops_clks;
 
+	/* For DeepSleep, the only supported option is to have the link off */
+	WARN_ON(ufshcd_is_ufs_dev_deepsleep(hba) && !ufshcd_is_link_off(hba));
+
 	if (ufshcd_is_link_hibern8(hba)) {
 		ret = ufshcd_uic_hibern8_exit(hba);
 		if (!ret) {
@@ -8887,6 +8919,8 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		/*
 		 * A full initialization of the host and the device is
 		 * required since the link was put to off during suspend.
+		 * Note, in the case of DeepSleep, the device will exit
+		 * DeepSleep due to device reset.
 		 */
 		ret = ufshcd_reset_and_restore(hba);
 		/*
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index a3469c981f974..7270de2f9a742 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -140,16 +140,22 @@ enum uic_link_state {
 	((h)->curr_dev_pwr_mode = UFS_SLEEP_PWR_MODE)
 #define ufshcd_set_ufs_dev_poweroff(h) \
 	((h)->curr_dev_pwr_mode = UFS_POWERDOWN_PWR_MODE)
+#define ufshcd_set_ufs_dev_deepsleep(h) \
+	((h)->curr_dev_pwr_mode = UFS_DEEPSLEEP_PWR_MODE)
 #define ufshcd_is_ufs_dev_active(h) \
 	((h)->curr_dev_pwr_mode == UFS_ACTIVE_PWR_MODE)
 #define ufshcd_is_ufs_dev_sleep(h) \
 	((h)->curr_dev_pwr_mode == UFS_SLEEP_PWR_MODE)
 #define ufshcd_is_ufs_dev_poweroff(h) \
 	((h)->curr_dev_pwr_mode == UFS_POWERDOWN_PWR_MODE)
+#define ufshcd_is_ufs_dev_deepsleep(h) \
+	((h)->curr_dev_pwr_mode == UFS_DEEPSLEEP_PWR_MODE)
 
 /*
  * UFS Power management levels.
- * Each level is in increasing order of power savings.
+ * Each level is in increasing order of power savings, except DeepSleep
+ * which is lower than PowerDown with power on but not PowerDown with
+ * power off.
  */
 enum ufs_pm_level {
 	UFS_PM_LVL_0, /* UFS_ACTIVE_PWR_MODE, UIC_LINK_ACTIVE_STATE */
@@ -158,6 +164,7 @@ enum ufs_pm_level {
 	UFS_PM_LVL_3, /* UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE */
 	UFS_PM_LVL_4, /* UFS_POWERDOWN_PWR_MODE, UIC_LINK_HIBERN8_STATE */
 	UFS_PM_LVL_5, /* UFS_POWERDOWN_PWR_MODE, UIC_LINK_OFF_STATE */
+	UFS_PM_LVL_6, /* UFS_DEEPSLEEP_PWR_MODE, UIC_LINK_OFF_STATE */
 	UFS_PM_LVL_MAX
 };
 
@@ -668,6 +675,14 @@ enum ufshcd_caps {
 	 * This would increase power savings.
 	 */
 	UFSHCD_CAP_AGGR_POWER_COLLAPSE			= 1 << 9,
+
+	/*
+	 * This capability allows the host controller driver to use DeepSleep,
+	 * if it is supported by the UFS device. The host controller driver must
+	 * support device hardware reset via the hba->device_reset() callback,
+	 * in order to exit DeepSleep state.
+	 */
+	UFSHCD_CAP_DEEPSLEEP				= 1 << 10,
 };
 
 struct ufs_hba_variant_params {
diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index 50654f3526392..0bd54a1843913 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -28,7 +28,8 @@
 #define UFS_PWR_MODES			\
 	EM(UFS_ACTIVE_PWR_MODE)		\
 	EM(UFS_SLEEP_PWR_MODE)		\
-	EMe(UFS_POWERDOWN_PWR_MODE)
+	EM(UFS_POWERDOWN_PWR_MODE)	\
+	EMe(UFS_DEEPSLEEP_PWR_MODE)
 
 #define UFSCHD_CLK_GATING_STATES	\
 	EM(CLKS_OFF)			\
-- 
GitLab


From d1f44de5214be17bf42ab804db6ac70dfcaf4356 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Thu, 29 Oct 2020 19:57:45 +0800
Subject: [PATCH 0665/4878] UPSTREAM: scsi: ufs-mediatek: Assign arguments with
 correct type

In ufs_mtk_unipro_set_lpm(), use specific unsigned values as the argument
to invoke ufshcd_dme_set().

At the same time, change the name of ufs_mtk_unipro_set_pm() to
ufs_mtk_unipro_set_lpm() to align the naming convention in MediaTek UFS
driver.

Link: https://lore.kernel.org/r/20201029115750.24391-2-stanley.chu@mediatek.com
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit a004147a33199c660bbb203f11a82703459bf9f9)
Bug: 204438323
Change-Id: I1e75b05fdc8a1204cb5d53fbff0252a2e0432340
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index ca0ebb2c9b965..63a906c673ae3 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -755,14 +755,14 @@ static int ufs_mtk_pwr_change_notify(struct ufs_hba *hba,
 	return ret;
 }
 
-static int ufs_mtk_unipro_set_pm(struct ufs_hba *hba, bool lpm)
+static int ufs_mtk_unipro_set_lpm(struct ufs_hba *hba, bool lpm)
 {
 	int ret;
 	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
 
 	ret = ufshcd_dme_set(hba,
 			     UIC_ARG_MIB_SEL(VS_UNIPROPOWERDOWNCONTROL, 0),
-			     lpm);
+			     lpm ? 1 : 0);
 	if (!ret || !lpm) {
 		/*
 		 * Forcibly set as non-LPM mode if UIC commands is failed
@@ -782,7 +782,7 @@ static int ufs_mtk_pre_link(struct ufs_hba *hba)
 
 	ufs_mtk_get_controller_version(hba);
 
-	ret = ufs_mtk_unipro_set_pm(hba, false);
+	ret = ufs_mtk_unipro_set_lpm(hba, false);
 	if (ret)
 		return ret;
 
@@ -897,7 +897,7 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba)
 	if (err)
 		return err;
 
-	err = ufs_mtk_unipro_set_pm(hba, false);
+	err = ufs_mtk_unipro_set_lpm(hba, false);
 	if (err)
 		return err;
 
@@ -918,10 +918,10 @@ static int ufs_mtk_link_set_lpm(struct ufs_hba *hba)
 {
 	int err;
 
-	err = ufs_mtk_unipro_set_pm(hba, true);
+	err = ufs_mtk_unipro_set_lpm(hba, true);
 	if (err) {
 		/* Resume UniPro state for following error recovery */
-		ufs_mtk_unipro_set_pm(hba, false);
+		ufs_mtk_unipro_set_lpm(hba, false);
 		return err;
 	}
 
-- 
GitLab


From 21c587653bcdc56258b6d87692ba7fc9a235c0b5 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 13 Nov 2020 16:47:54 -0800
Subject: [PATCH 0666/4878] UPSTREAM: scsi: ufs-qcom: Only select QCOM_SCM if
 SCSI_UFS_CRYPTO

QCOM_SCM is only needed to make the qcom_scm_*() calls in ufs-qcom-ice.c,
which is only compiled when SCSI_UFS_CRYPTO=y.  So don't unnecessarily
enable QCOM_SCM when SCSI_UFS_CRYPTO=n.

Link: https://lore.kernel.org/r/20201114004754.235378-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 6ac63216a7af03e8281758d7cd32a09718531eb2)
Bug: 204438323
Change-Id: I23cc346284de92b223da87917b335e763078eec8
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index 87900016448fc..6ed69205c75f6 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -100,7 +100,7 @@ config SCSI_UFS_DWC_TC_PLATFORM
 config SCSI_UFS_QCOM
 	tristate "QCOM specific hooks to UFS controller platform driver"
 	depends on SCSI_UFSHCD_PLATFORM && ARCH_QCOM
-	select QCOM_SCM
+	select QCOM_SCM if SCSI_UFS_CRYPTO
 	select RESET_CONTROLLER
 	help
 	  This selects the QCOM specific additions to UFSHCD platform driver.
-- 
GitLab


From 925faada23ba6bd4666a31697c987e0f4b3fe324 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:46 +0800
Subject: [PATCH 0667/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Refactor
 performance scaling functions

Refactor performance scaling related functions in MediaTek UFS driver.

Link: https://lore.kernel.org/r/20201116065054.7658-2-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 54770cbebe2caa89423a13ff32fa0d497c392214)
Bug: 204438323
Change-Id: I6a3ffc145bd404985a8d55680fb70ec7ad96b945
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 63a906c673ae3..3f3304e977069 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -527,6 +527,19 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba)
 	dev_info(hba->dev, "caps: 0x%x", host->caps);
 }
 
+static void ufs_mtk_scale_perf(struct ufs_hba *hba, bool up)
+{
+	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+
+	ufs_mtk_boost_crypt(hba, up);
+	ufs_mtk_setup_ref_clk(hba, up);
+
+	if (up)
+		phy_power_on(host->mphy);
+	else
+		phy_power_off(host->mphy);
+}
+
 /**
  * ufs_mtk_setup_clocks - enables/disable clocks
  * @hba: host controller instance
@@ -568,15 +581,10 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on,
 				clk_pwr_off = true;
 		}
 
-		if (clk_pwr_off) {
-			ufs_mtk_boost_crypt(hba, on);
-			ufs_mtk_setup_ref_clk(hba, on);
-			phy_power_off(host->mphy);
-		}
+		if (clk_pwr_off)
+			ufs_mtk_scale_perf(hba, false);
 	} else if (on && status == POST_CHANGE) {
-		phy_power_on(host->mphy);
-		ufs_mtk_setup_ref_clk(hba, on);
-		ufs_mtk_boost_crypt(hba, on);
+		ufs_mtk_scale_perf(hba, true);
 	}
 
 	return ret;
-- 
GitLab


From 66f77bcd7d5df26805c7c44a9ca1348d706428a3 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:47 +0800
Subject: [PATCH 0668/4878] UPSTREAM: scsi: ufs: Introduce device parameter
 initialization function

Nowadays many vendors initialize their device parameters in their own
vendor drivers. The initialization code is almost the same as well as the
pre-defined definitions. Introduce a common device parameter initialization
function which assign the most common initial values. With this function,
we could remove those duplicated codes in vendor drivers.

Link: https://lore.kernel.org/r/20201116065054.7658-3-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 65858014ee20c842eaff65514e75d2c640c70007)
Bug: 204438323
Change-Id: Ib64ea3e3e45e9702c8416807884442eefef4f486
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-pltfrm.c | 17 +++++++++++++++++
 drivers/scsi/ufs/ufshcd-pltfrm.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 4839a109216c6..b56d9b4e5f033 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -337,6 +337,23 @@ int ufshcd_get_pwr_dev_param(struct ufs_dev_params *pltfrm_param,
 }
 EXPORT_SYMBOL_GPL(ufshcd_get_pwr_dev_param);
 
+void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param)
+{
+	dev_param->tx_lanes = 2;
+	dev_param->rx_lanes = 2;
+	dev_param->hs_rx_gear = UFS_HS_G3;
+	dev_param->hs_tx_gear = UFS_HS_G3;
+	dev_param->pwm_rx_gear = UFS_PWM_G4;
+	dev_param->pwm_tx_gear = UFS_PWM_G4;
+	dev_param->rx_pwr_pwm = SLOW_MODE;
+	dev_param->tx_pwr_pwm = SLOW_MODE;
+	dev_param->rx_pwr_hs = FAST_MODE;
+	dev_param->tx_pwr_hs = FAST_MODE;
+	dev_param->hs_rate = PA_HS_MODE_B;
+	dev_param->desired_working_mode = UFS_HS_MODE;
+}
+EXPORT_SYMBOL_GPL(ufshcd_init_pwr_dev_param);
+
 /**
  * ufshcd_pltfrm_init - probe routine of the driver
  * @pdev: pointer to Platform device handle
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.h b/drivers/scsi/ufs/ufshcd-pltfrm.h
index b79cdf9129a08..772a8e8480982 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.h
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.h
@@ -28,6 +28,7 @@ struct ufs_dev_params {
 int ufshcd_get_pwr_dev_param(struct ufs_dev_params *dev_param,
 			     struct ufs_pa_layer_attr *dev_max,
 			     struct ufs_pa_layer_attr *agreed_pwr);
+void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param);
 int ufshcd_pltfrm_init(struct platform_device *pdev,
 		       const struct ufs_hba_variant_ops *vops);
 void ufshcd_pltfrm_shutdown(struct platform_device *pdev);
-- 
GitLab


From 9c4a8eb73a61af285267318fcc980ecaf1599ee2 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:48 +0800
Subject: [PATCH 0669/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Use device
 parameter initialization function

Use common device parameter initialization function instead of initializing
those parameters by vendor driver itself.

Link: https://lore.kernel.org/r/20201116065054.7658-4-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit a4b537ea656e9f48b2cbcd7b8883f21b3fc5cef9)
Bug: 204438323
Change-Id: I51245627fa918a260bf6e22a705240dd243e0a9a
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 16 +++-------------
 drivers/scsi/ufs/ufs-mediatek.h | 16 ----------------
 2 files changed, 3 insertions(+), 29 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 3f3304e977069..eacfa341b2006 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -706,19 +706,9 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba,
 	u32 adapt_val;
 	int ret;
 
-	host_cap.tx_lanes = UFS_MTK_LIMIT_NUM_LANES_TX;
-	host_cap.rx_lanes = UFS_MTK_LIMIT_NUM_LANES_RX;
-	host_cap.hs_rx_gear = UFS_MTK_LIMIT_HSGEAR_RX;
-	host_cap.hs_tx_gear = UFS_MTK_LIMIT_HSGEAR_TX;
-	host_cap.pwm_rx_gear = UFS_MTK_LIMIT_PWMGEAR_RX;
-	host_cap.pwm_tx_gear = UFS_MTK_LIMIT_PWMGEAR_TX;
-	host_cap.rx_pwr_pwm = UFS_MTK_LIMIT_RX_PWR_PWM;
-	host_cap.tx_pwr_pwm = UFS_MTK_LIMIT_TX_PWR_PWM;
-	host_cap.rx_pwr_hs = UFS_MTK_LIMIT_RX_PWR_HS;
-	host_cap.tx_pwr_hs = UFS_MTK_LIMIT_TX_PWR_HS;
-	host_cap.hs_rate = UFS_MTK_LIMIT_HS_RATE;
-	host_cap.desired_working_mode =
-				UFS_MTK_LIMIT_DESIRED_MODE;
+	ufshcd_init_pwr_dev_param(&host_cap);
+	host_cap.hs_rx_gear = UFS_HS_G4;
+	host_cap.hs_tx_gear = UFS_HS_G4;
 
 	ret = ufshcd_get_pwr_dev_param(&host_cap,
 				       dev_max_params,
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index d6b110d2c177b..3f0d3bb769e89 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -30,22 +30,6 @@
 
 #define REFCLK_REQ_TIMEOUT_US       3000
 
-/*
- * Vendor specific pre-defined parameters
- */
-#define UFS_MTK_LIMIT_NUM_LANES_RX  2
-#define UFS_MTK_LIMIT_NUM_LANES_TX  2
-#define UFS_MTK_LIMIT_HSGEAR_RX     UFS_HS_G4
-#define UFS_MTK_LIMIT_HSGEAR_TX     UFS_HS_G4
-#define UFS_MTK_LIMIT_PWMGEAR_RX    UFS_PWM_G4
-#define UFS_MTK_LIMIT_PWMGEAR_TX    UFS_PWM_G4
-#define UFS_MTK_LIMIT_RX_PWR_PWM    SLOW_MODE
-#define UFS_MTK_LIMIT_TX_PWR_PWM    SLOW_MODE
-#define UFS_MTK_LIMIT_RX_PWR_HS     FAST_MODE
-#define UFS_MTK_LIMIT_TX_PWR_HS     FAST_MODE
-#define UFS_MTK_LIMIT_HS_RATE       PA_HS_MODE_B
-#define UFS_MTK_LIMIT_DESIRED_MODE  UFS_HS_MODE
-
 /*
  * Other attributes
  */
-- 
GitLab


From 908aa4a14ac95a1cd56699c7192172c0986ebf8a Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:49 +0800
Subject: [PATCH 0670/4878] UPSTREAM: scsi: ufs: ufs-qcom: Use device parameter
 initialization function

Use common device parameter initialization function instead of initializing
those parameters by vendor driver itself.

Link: https://lore.kernel.org/r/20201116065054.7658-5-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 8beef54716e652fb08ac6ab45c2ce239ec3f5856)
Bug: 204438323
Change-Id: I168c25ee8d845e70adbfbb35e4c0eed423685c33
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-qcom.c | 13 +------------
 drivers/scsi/ufs/ufs-qcom.h | 11 -----------
 2 files changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index a78475ffb9158..6b25551ba051a 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -715,19 +715,8 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 
 	switch (status) {
 	case PRE_CHANGE:
-		ufs_qcom_cap.tx_lanes = UFS_QCOM_LIMIT_NUM_LANES_TX;
-		ufs_qcom_cap.rx_lanes = UFS_QCOM_LIMIT_NUM_LANES_RX;
-		ufs_qcom_cap.hs_rx_gear = UFS_QCOM_LIMIT_HSGEAR_RX;
-		ufs_qcom_cap.hs_tx_gear = UFS_QCOM_LIMIT_HSGEAR_TX;
-		ufs_qcom_cap.pwm_rx_gear = UFS_QCOM_LIMIT_PWMGEAR_RX;
-		ufs_qcom_cap.pwm_tx_gear = UFS_QCOM_LIMIT_PWMGEAR_TX;
-		ufs_qcom_cap.rx_pwr_pwm = UFS_QCOM_LIMIT_RX_PWR_PWM;
-		ufs_qcom_cap.tx_pwr_pwm = UFS_QCOM_LIMIT_TX_PWR_PWM;
-		ufs_qcom_cap.rx_pwr_hs = UFS_QCOM_LIMIT_RX_PWR_HS;
-		ufs_qcom_cap.tx_pwr_hs = UFS_QCOM_LIMIT_TX_PWR_HS;
+		ufshcd_init_pwr_dev_param(&ufs_qcom_cap);
 		ufs_qcom_cap.hs_rate = UFS_QCOM_LIMIT_HS_RATE;
-		ufs_qcom_cap.desired_working_mode =
-					UFS_QCOM_LIMIT_DESIRED_MODE;
 
 		if (host->hw_ver.major == 0x1) {
 			/*
diff --git a/drivers/scsi/ufs/ufs-qcom.h b/drivers/scsi/ufs/ufs-qcom.h
index 3f4922743b3e3..8208e3a3ef59d 100644
--- a/drivers/scsi/ufs/ufs-qcom.h
+++ b/drivers/scsi/ufs/ufs-qcom.h
@@ -27,18 +27,7 @@
 #define SLOW 1
 #define FAST 2
 
-#define UFS_QCOM_LIMIT_NUM_LANES_RX	2
-#define UFS_QCOM_LIMIT_NUM_LANES_TX	2
-#define UFS_QCOM_LIMIT_HSGEAR_RX	UFS_HS_G3
-#define UFS_QCOM_LIMIT_HSGEAR_TX	UFS_HS_G3
-#define UFS_QCOM_LIMIT_PWMGEAR_RX	UFS_PWM_G4
-#define UFS_QCOM_LIMIT_PWMGEAR_TX	UFS_PWM_G4
-#define UFS_QCOM_LIMIT_RX_PWR_PWM	SLOW_MODE
-#define UFS_QCOM_LIMIT_TX_PWR_PWM	SLOW_MODE
-#define UFS_QCOM_LIMIT_RX_PWR_HS	FAST_MODE
-#define UFS_QCOM_LIMIT_TX_PWR_HS	FAST_MODE
 #define UFS_QCOM_LIMIT_HS_RATE		PA_HS_MODE_B
-#define UFS_QCOM_LIMIT_DESIRED_MODE	FAST
 
 /* QCOM UFS host controller vendor specific registers */
 enum {
-- 
GitLab


From 18e85ddf9be0b55f26999e20aaf3c3eeb7a04245 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:50 +0800
Subject: [PATCH 0671/4878] UPSTREAM: scsi: ufs: ufs-exynos: Use device
 parameter initialization function

Use common device parameter initialization function instead of initializing
those parameters by vendor driver itself.

Link: https://lore.kernel.org/r/20201116065054.7658-6-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 5b3573d68d9ac45c904af6d6e9bc415af45ccc41)
Bug: 204438323
Change-Id: I0b53b05e570b8a64eebeab75669f228a0a1108d7
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 15 +--------------
 drivers/scsi/ufs/ufs-exynos.h | 13 -------------
 2 files changed, 1 insertion(+), 27 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 0246ea99df7b3..397e5848b542a 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -617,20 +617,7 @@ static int exynos_ufs_pre_pwr_mode(struct ufs_hba *hba,
 		goto out;
 	}
 
-
-	ufs_exynos_cap.tx_lanes = UFS_EXYNOS_LIMIT_NUM_LANES_TX;
-	ufs_exynos_cap.rx_lanes = UFS_EXYNOS_LIMIT_NUM_LANES_RX;
-	ufs_exynos_cap.hs_rx_gear = UFS_EXYNOS_LIMIT_HSGEAR_RX;
-	ufs_exynos_cap.hs_tx_gear = UFS_EXYNOS_LIMIT_HSGEAR_TX;
-	ufs_exynos_cap.pwm_rx_gear = UFS_EXYNOS_LIMIT_PWMGEAR_RX;
-	ufs_exynos_cap.pwm_tx_gear = UFS_EXYNOS_LIMIT_PWMGEAR_TX;
-	ufs_exynos_cap.rx_pwr_pwm = UFS_EXYNOS_LIMIT_RX_PWR_PWM;
-	ufs_exynos_cap.tx_pwr_pwm = UFS_EXYNOS_LIMIT_TX_PWR_PWM;
-	ufs_exynos_cap.rx_pwr_hs = UFS_EXYNOS_LIMIT_RX_PWR_HS;
-	ufs_exynos_cap.tx_pwr_hs = UFS_EXYNOS_LIMIT_TX_PWR_HS;
-	ufs_exynos_cap.hs_rate = UFS_EXYNOS_LIMIT_HS_RATE;
-	ufs_exynos_cap.desired_working_mode =
-				UFS_EXYNOS_LIMIT_DESIRED_MODE;
+	ufshcd_init_pwr_dev_param(&ufs_exynos_cap);
 
 	ret = ufshcd_get_pwr_dev_param(&ufs_exynos_cap,
 				       dev_max_params, dev_req_params);
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 541b577c371ce..a5804e8eb3586 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -90,19 +90,6 @@ struct exynos_ufs;
 #define SLOW 1
 #define FAST 2
 
-#define UFS_EXYNOS_LIMIT_NUM_LANES_RX	2
-#define UFS_EXYNOS_LIMIT_NUM_LANES_TX	2
-#define UFS_EXYNOS_LIMIT_HSGEAR_RX	UFS_HS_G3
-#define UFS_EXYNOS_LIMIT_HSGEAR_TX	UFS_HS_G3
-#define UFS_EXYNOS_LIMIT_PWMGEAR_RX	UFS_PWM_G4
-#define UFS_EXYNOS_LIMIT_PWMGEAR_TX	UFS_PWM_G4
-#define UFS_EXYNOS_LIMIT_RX_PWR_PWM	SLOW_MODE
-#define UFS_EXYNOS_LIMIT_TX_PWR_PWM	SLOW_MODE
-#define UFS_EXYNOS_LIMIT_RX_PWR_HS	FAST_MODE
-#define UFS_EXYNOS_LIMIT_TX_PWR_HS	FAST_MODE
-#define UFS_EXYNOS_LIMIT_HS_RATE		PA_HS_MODE_B
-#define UFS_EXYNOS_LIMIT_DESIRED_MODE	FAST
-
 #define RX_ADV_FINE_GRAN_SUP_EN	0x1
 #define RX_ADV_FINE_GRAN_STEP_VAL	0x3
 #define RX_ADV_MIN_ACTV_TIME_CAP	0x9
-- 
GitLab


From 04c6c4249a894f11574bc81ff334f4e22cfd79c1 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:51 +0800
Subject: [PATCH 0672/4878] UPSTREAM: scsi: ufs: ufs-hisi: Use device parameter
 initialization function

Use common device parameter initialization function instead of initializing
those parameters by vendor driver itself.

Link: https://lore.kernel.org/r/20201116065054.7658-7-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 85d6d3c18953b9653d0934c087fe73ff02e43c79)
Bug: 204438323
Change-Id: I343af684a6705ddea843d7424191f37f91dc6edd
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-hisi.c | 13 +------------
 drivers/scsi/ufs/ufs-hisi.h | 13 -------------
 2 files changed, 1 insertion(+), 25 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 55b7161d76977..d0626773eb386 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -293,18 +293,7 @@ static int ufs_hisi_link_startup_notify(struct ufs_hba *hba,
 
 static void ufs_hisi_set_dev_cap(struct ufs_dev_params *hisi_param)
 {
-	hisi_param->rx_lanes = UFS_HISI_LIMIT_NUM_LANES_RX;
-	hisi_param->tx_lanes = UFS_HISI_LIMIT_NUM_LANES_TX;
-	hisi_param->hs_rx_gear = UFS_HISI_LIMIT_HSGEAR_RX;
-	hisi_param->hs_tx_gear = UFS_HISI_LIMIT_HSGEAR_TX;
-	hisi_param->pwm_rx_gear = UFS_HISI_LIMIT_PWMGEAR_RX;
-	hisi_param->pwm_tx_gear = UFS_HISI_LIMIT_PWMGEAR_TX;
-	hisi_param->rx_pwr_pwm = UFS_HISI_LIMIT_RX_PWR_PWM;
-	hisi_param->tx_pwr_pwm = UFS_HISI_LIMIT_TX_PWR_PWM;
-	hisi_param->rx_pwr_hs = UFS_HISI_LIMIT_RX_PWR_HS;
-	hisi_param->tx_pwr_hs = UFS_HISI_LIMIT_TX_PWR_HS;
-	hisi_param->hs_rate = UFS_HISI_LIMIT_HS_RATE;
-	hisi_param->desired_working_mode = UFS_HISI_LIMIT_DESIRED_MODE;
+	ufshcd_init_pwr_dev_param(hisi_param);
 }
 
 static void ufs_hisi_pwr_change_pre_change(struct ufs_hba *hba)
diff --git a/drivers/scsi/ufs/ufs-hisi.h b/drivers/scsi/ufs/ufs-hisi.h
index 3231d3d81c985..5a90c0f4e90c7 100644
--- a/drivers/scsi/ufs/ufs-hisi.h
+++ b/drivers/scsi/ufs/ufs-hisi.h
@@ -76,19 +76,6 @@ enum {
 #define SLOW	1
 #define FAST	2
 
-#define UFS_HISI_LIMIT_NUM_LANES_RX	2
-#define UFS_HISI_LIMIT_NUM_LANES_TX	2
-#define UFS_HISI_LIMIT_HSGEAR_RX	UFS_HS_G3
-#define UFS_HISI_LIMIT_HSGEAR_TX	UFS_HS_G3
-#define UFS_HISI_LIMIT_PWMGEAR_RX	UFS_PWM_G4
-#define UFS_HISI_LIMIT_PWMGEAR_TX	UFS_PWM_G4
-#define UFS_HISI_LIMIT_RX_PWR_PWM	SLOW_MODE
-#define UFS_HISI_LIMIT_TX_PWR_PWM	SLOW_MODE
-#define UFS_HISI_LIMIT_RX_PWR_HS	FAST_MODE
-#define UFS_HISI_LIMIT_TX_PWR_HS	FAST_MODE
-#define UFS_HISI_LIMIT_HS_RATE	PA_HS_MODE_B
-#define UFS_HISI_LIMIT_DESIRED_MODE	FAST
-
 #define UFS_HISI_CAP_RESERVED		BIT(0)
 #define UFS_HISI_CAP_PHY10nm		BIT(1)
 
-- 
GitLab


From 6582f7c0aad45ff4fa9a210cb5776fabe94aafdb Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:52 +0800
Subject: [PATCH 0673/4878] UPSTREAM: scsi: ufs: Refactor ADAPT configuration
 function

Several vendors are using same code to configure ADAPT settings for
HS-G4. Simply refactor it as common function.

Link: https://lore.kernel.org/r/20201116065054.7658-8-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit fc85a74e28fe087dceb80eb69f37307ec97b6b47)
Bug: 204438323
Change-Id: Ic2d373f9eb5e500fd0186c159f6e676723a97758
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 16 ++++++++++++++++
 drivers/scsi/ufs/ufshcd.h |  3 +++
 2 files changed, 19 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4123459a99813..4180994433aaa 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3756,6 +3756,22 @@ static int ufshcd_dme_reset(struct ufs_hba *hba)
 	return ret;
 }
 
+int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
+			       int agreed_gear,
+			       int adapt_val)
+{
+	int ret;
+
+	if (agreed_gear != UFS_HS_G4)
+		adapt_val = PA_INITIAL_ADAPT;
+
+	ret = ufshcd_dme_set(hba,
+			     UIC_ARG_MIB(PA_TXHSADAPTTYPE),
+			     adapt_val);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ufshcd_dme_configure_adapt);
+
 /**
  * ufshcd_dme_enable - UIC command for DME_ENABLE
  * @hba: per adapter instance
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 7270de2f9a742..d43a9e9073157 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1095,6 +1095,9 @@ extern int ufshcd_runtime_idle(struct ufs_hba *hba);
 extern int ufshcd_system_suspend(struct ufs_hba *hba);
 extern int ufshcd_system_resume(struct ufs_hba *hba);
 extern int ufshcd_shutdown(struct ufs_hba *hba);
+extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
+				      int agreed_gear,
+				      int adapt_val);
 extern int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
 			       u8 attr_set, u32 mib_val, u8 peer);
 extern int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
-- 
GitLab


From f7a28d2c91e705392e859a3766497429b2d7d622 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:53 +0800
Subject: [PATCH 0674/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Use common ADAPT
 configuration function

Use common ADAPT configuration function to reduce duplicated code in UFS
drivers.

Link: https://lore.kernel.org/r/20201116065054.7658-9-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit e1e25d1b89967035059cf8e098270cc3300b5bd9)
Bug: 204438323
Change-Id: I7836ace10a782205112df4c6d29092a0ba638cef
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index eacfa341b2006..7f4dc2345bbf8 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -703,7 +703,6 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba,
 {
 	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
 	struct ufs_dev_params host_cap;
-	u32 adapt_val;
 	int ret;
 
 	ufshcd_init_pwr_dev_param(&host_cap);
@@ -719,13 +718,9 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba,
 	}
 
 	if (host->hw_ver.major >= 3) {
-		if (dev_req_params->gear_tx == UFS_HS_G4)
-			adapt_val = PA_INITIAL_ADAPT;
-		else
-			adapt_val = PA_NO_ADAPT;
-		ufshcd_dme_set(hba,
-			       UIC_ARG_MIB(PA_TXHSADAPTTYPE),
-			       adapt_val);
+		ret = ufshcd_dme_configure_adapt(hba,
+					   dev_req_params->gear_tx,
+					   PA_INITIAL_ADAPT);
 	}
 
 	return ret;
-- 
GitLab


From 0bc5bb161a5a5fa0e191787495374aaaa38674ba Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Mon, 16 Nov 2020 14:50:54 +0800
Subject: [PATCH 0675/4878] UPSTREAM: scsi: ufs: ufs-qcom: Use common ADAPT
 configuration function

Use common ADAPT configuration function to reduce duplicated code in UFS
drivers.

Link: https://lore.kernel.org/r/20201116065054.7658-10-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit d9fa1e731e243525861517ba256b179072070c1d)
Bug: 204438323
Change-Id: I1616679b35771b6efe3fc714d98a824dd570063c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-qcom.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 6b25551ba051a..d72bbd32d24af 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -747,17 +747,9 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
 			ufs_qcom_dev_ref_clk_ctrl(host, true);
 
 		if (host->hw_ver.major >= 0x4) {
-			if (dev_req_params->gear_tx == UFS_HS_G4) {
-				/* INITIAL ADAPT */
-				ufshcd_dme_set(hba,
-					       UIC_ARG_MIB(PA_TXHSADAPTTYPE),
-					       PA_INITIAL_ADAPT);
-			} else {
-				/* NO ADAPT */
-				ufshcd_dme_set(hba,
-					       UIC_ARG_MIB(PA_TXHSADAPTTYPE),
-					       PA_NO_ADAPT);
-			}
+			ufshcd_dme_configure_adapt(hba,
+						dev_req_params->gear_tx,
+						PA_INITIAL_ADAPT);
 		}
 		break;
 	case POST_CHANGE:
-- 
GitLab


From 3442ca89f2d3a08d0106b4cd78fdf97b7de98211 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Fri, 20 Nov 2020 20:48:10 -0800
Subject: [PATCH 0676/4878] UPSTREAM: scsi: ufs: Adjust logic in common ADAPT
 helper

The introduction of ufshcd_dme_configure_adapt() refactored out duplication
from the Mediatek and Qualcomm drivers.

Both these implementations had the logic of:

    gear_tx == UFS_HS_G4 => PA_INITIAL_ADAPT
    gear_tx != UFS_HS_G4 => PA_NO_ADAPT

but now both implementations pass PA_INITIAL_ADAPT as "adapt_val" and if
gear_tx is not UFS_HS_G4 that is replaced with PA_INITIAL_ADAPT. In other
words, it's PA_INITIAL_ADAPT in both above cases.

The result is that e.g. Qualcomm SM8150 has no longer functional UFS, so
adjust the logic to match the previous implementation.

Link: https://lore.kernel.org/r/20201121044810.507288-1-bjorn.andersson@linaro.org
Fixes: fc85a74e28fe ("scsi: ufs: Refactor ADAPT configuration function")
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 66df79ccbc2f617a2bbaa7108a2b50a6869de5d4)
Bug: 204438323
Change-Id: Ibb643d41f8d27a6982fac7ce301b6debdc72dbd2
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4180994433aaa..6f9db81da7da4 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3763,7 +3763,7 @@ int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
 	int ret;
 
 	if (agreed_gear != UFS_HS_G4)
-		adapt_val = PA_INITIAL_ADAPT;
+		adapt_val = PA_NO_ADAPT;
 
 	ret = ufshcd_dme_set(hba,
 			     UIC_ARG_MIB(PA_TXHSADAPTTYPE),
-- 
GitLab


From 4fb6025d52b669ed730e8097aba22a2b70f19b5a Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Wed, 25 Nov 2020 19:53:00 +0100
Subject: [PATCH 0677/4878] UPSTREAM: scsi: ufs: Remove unnecessary if
 condition in ufshcd_suspend()

In the case that auto_bkops_enable is false, which means auto bkops has
been disabled, there is no need to call ufshcd_disable_auto_bkops().

Link: https://lore.kernel.org/r/20201125185300.3394-1-huobean@gmail.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 939785d35def8d10e8ad312b252dbbecc8d41ca1)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Id05e190482ce2c782a4cf4ea99e683cfc592c5f1
---
 drivers/scsi/ufs/ufshcd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6f9db81da7da4..0aa34d708256c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8784,11 +8784,9 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	flush_work(&hba->eeh_work);
 
 	if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) {
-		if ((ufshcd_is_runtime_pm(pm_op) && !hba->auto_bkops_enabled) ||
-		    !ufshcd_is_runtime_pm(pm_op)) {
+		if (!ufshcd_is_runtime_pm(pm_op))
 			/* ensure that bkops is disabled */
 			ufshcd_disable_auto_bkops(hba);
-		}
 
 		if (!hba->dev_info.b_rpm_dev_flush_capable) {
 			ret = ufshcd_set_dev_pwr_mode(hba, req_dev_pwr_mode);
-- 
GitLab


From 9fdfb63d17627b498b100e08f9f51d1f59513887 Mon Sep 17 00:00:00 2001
From: Can Guo <cang@codeaurora.org>
Date: Wed, 25 Nov 2020 18:01:01 -0800
Subject: [PATCH 0678/4878] UPSTREAM: scsi: ufs-qcom: Keep core_clk_unipro on
 while link is active

If we want to disable clocks to save power but still keep the link active,
core_clk_unipro, like ref_clk, should not be the one being disabled.

Link: https://lore.kernel.org/r/1606356063-38380-3-git-send-email-cang@codeaurora.org
Reviewed-by: Hongwu Su <hongwus@codeaurora.org>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 96f08cc5943c0fe943ea10fdead6a80b73270046)
Bug: 204438323
Change-Id: I89f8e8d481effb6086183c4dd293a1104f8b44ed
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-qcom.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index d72bbd32d24af..f8d4e1bf9807a 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -983,6 +983,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct ufs_qcom_host *host;
 	struct resource *res;
+	struct ufs_clk_info *clki;
 
 	if (strlen(android_boot_dev) && strcmp(android_boot_dev, dev_name(dev)))
 		return -ENODEV;
@@ -1081,6 +1082,11 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 		}
 	}
 
+	list_for_each_entry(clki, &hba->clk_list_head, list) {
+		if (!strcmp(clki->name, "core_clk_unipro"))
+			clki->keep_link_active = true;
+	}
+
 	err = ufs_qcom_init_lane_clks(host);
 	if (err)
 		goto out_variant_clear;
-- 
GitLab


From 637490a76d9b14a4a4b7e39726abb29297487754 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Sat, 5 Dec 2020 20:00:38 +0800
Subject: [PATCH 0679/4878] UPSTREAM: scsi: ufs: Remove unused setup_regulators
 variant function

Since setup_regulators variant function is not used by any vendors, simply
remove it.

Link: https://lore.kernel.org/r/20201205120041.26869-2-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ade921a891de4c32ca31f5db95c2239ffb2b791d)
Bug: 204438323
Change-Id: I4b700f50a600b275470f5c85573d3eb1aab4ab44
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 10 +---------
 drivers/scsi/ufs/ufshcd.h | 10 ----------
 2 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0aa34d708256c..8360c0816b60a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8377,16 +8377,10 @@ static int ufshcd_variant_hba_init(struct ufs_hba *hba)
 		goto out;
 
 	err = ufshcd_vops_init(hba);
-	if (err)
-		goto out;
-
-	err = ufshcd_vops_setup_regulators(hba, true);
-	if (err)
-		ufshcd_vops_exit(hba);
-out:
 	if (err)
 		dev_err(hba->dev, "%s: variant %s init failed err %d\n",
 			__func__, ufshcd_get_var_name(hba), err);
+out:
 	return err;
 }
 
@@ -8395,8 +8389,6 @@ static void ufshcd_variant_hba_exit(struct ufs_hba *hba)
 	if (!hba->vops)
 		return;
 
-	ufshcd_vops_setup_regulators(hba, false);
-
 	ufshcd_vops_exit(hba);
 }
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index d43a9e9073157..e45f1f7aab4a1 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -305,7 +305,6 @@ struct ufs_pwr_mode_info {
  * @get_ufs_hci_version: called to get UFS HCI version
  * @clk_scale_notify: notifies that clks are scaled up/down
  * @setup_clocks: called before touching any of the controller registers
- * @setup_regulators: called before accessing the host controller
  * @hce_enable_notify: called before and after HCE enable bit is set to allow
  *                     variant specific Uni-Pro initialization.
  * @link_startup_notify: called before and after Link startup is carried out
@@ -336,7 +335,6 @@ struct ufs_hba_variant_ops {
 				    enum ufs_notify_change_status);
 	int	(*setup_clocks)(struct ufs_hba *, bool,
 				enum ufs_notify_change_status);
-	int     (*setup_regulators)(struct ufs_hba *, bool);
 	int	(*hce_enable_notify)(struct ufs_hba *,
 				     enum ufs_notify_change_status);
 	int	(*link_startup_notify)(struct ufs_hba *,
@@ -1271,14 +1269,6 @@ static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on,
 	return 0;
 }
 
-static inline int ufshcd_vops_setup_regulators(struct ufs_hba *hba, bool status)
-{
-	if (hba->vops && hba->vops->setup_regulators)
-		return hba->vops->setup_regulators(hba, status);
-
-	return 0;
-}
-
 static inline int ufshcd_vops_hce_enable_notify(struct ufs_hba *hba,
 						bool status)
 {
-- 
GitLab


From 5da68a465a7676252250b920a86d5e1367f2791f Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Sat, 5 Dec 2020 20:00:39 +0800
Subject: [PATCH 0680/4878] UPSTREAM: scsi: ufs: Introduce phy_initialization
 helper

Introduce phy_initialization helper since this is the only one variant
function without helper.

Link: https://lore.kernel.org/r/20201205120041.26869-3-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 92bcebe4b6d652e98ca2667e8e43c3d0a08f6afc)
Bug: 204438323
Change-Id: I4ded425eacbf92c48880d6103cb7682bb2e45560
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index e45f1f7aab4a1..c91ef0a8b1cb9 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1286,6 +1286,14 @@ static inline int ufshcd_vops_link_startup_notify(struct ufs_hba *hba,
 	return 0;
 }
 
+static inline int ufshcd_vops_phy_initialization(struct ufs_hba *hba)
+{
+	if (hba->vops && hba->vops->phy_initialization)
+		return hba->vops->phy_initialization(hba);
+
+	return 0;
+}
+
 static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
 				  bool status,
 				  struct ufs_pa_layer_attr *dev_max_params,
-- 
GitLab


From afc50512d7c16b1246b3fb0c91303b866304f6e4 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Sat, 5 Dec 2020 20:00:40 +0800
Subject: [PATCH 0681/4878] UPSTREAM: scsi: ufs-cdns: Use phy_initialization
 helper

Use phy_initialization helper instead of direct function invocation.

Link: https://lore.kernel.org/r/20201205120041.26869-4-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 885445736bc099430c0529eb85cd9cc8d12f4848)
Bug: 204438323
Change-Id: Id4c9e3d3ebc28a592430ff3f1cf8dda8b519f5fd
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/cdns-pltfrm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/cdns-pltfrm.c b/drivers/scsi/ufs/cdns-pltfrm.c
index da065a259f6e4..149391faa19c1 100644
--- a/drivers/scsi/ufs/cdns-pltfrm.c
+++ b/drivers/scsi/ufs/cdns-pltfrm.c
@@ -221,8 +221,7 @@ static int cdns_ufs_init(struct ufs_hba *hba)
 		return -ENOMEM;
 	ufshcd_set_variant(hba, host);
 
-	if (hba->vops && hba->vops->phy_initialization)
-		status = hba->vops->phy_initialization(hba);
+	status = ufshcd_vops_phy_initialization(hba);
 
 	return status;
 }
-- 
GitLab


From 70c7deb9d97d5787ef66dfe7626ce301436ceacf Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Sat, 5 Dec 2020 20:00:41 +0800
Subject: [PATCH 0682/4878] UPSTREAM: scsi: ufs-dwc: Use phy_initialization
 helper

Use phy_initialization helper instead of direct invocation.

Link: https://lore.kernel.org/r/20201205120041.26869-5-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ab98105484fc83dfaafc2d6f6411cd4e2b39423d)
Bug: 204438323
Change-Id: I67e9046996aea433c8e6ecca2bbd1c9917fafa66
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-dwc.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-dwc.c b/drivers/scsi/ufs/ufshcd-dwc.c
index 6a901da2d15a1..5bb9d3a88795c 100644
--- a/drivers/scsi/ufs/ufshcd-dwc.c
+++ b/drivers/scsi/ufs/ufshcd-dwc.c
@@ -120,13 +120,10 @@ int ufshcd_dwc_link_startup_notify(struct ufs_hba *hba,
 	if (status == PRE_CHANGE) {
 		ufshcd_dwc_program_clk_div(hba, DWC_UFS_REG_HCLKDIV_DIV_125);
 
-		if (hba->vops->phy_initialization) {
-			err = hba->vops->phy_initialization(hba);
-			if (err) {
-				dev_err(hba->dev, "Phy setup failed (%d)\n",
-									err);
-				goto out;
-			}
+		err = ufshcd_vops_phy_initialization(hba);
+		if (err) {
+			dev_err(hba->dev, "Phy setup failed (%d)\n", err);
+			goto out;
 		}
 	} else { /* POST_CHANGE */
 		err = ufshcd_dwc_link_is_up(hba);
-- 
GitLab


From 62580d18a7c6b67920112a008c76f6d5ba8990dc Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 7 Dec 2020 20:01:36 +0100
Subject: [PATCH 0683/4878] UPSTREAM: scsi: ufs: Remove unused macro definition
 POWER_DESC_MAX_SIZE

POWER_DESC_MAX_SIZE is unused, remove it.

Link: https://lore.kernel.org/r/20201207190137.6858-2-huobean@gmail.com
Acked-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 44fd9fb599d3d2be4c6838f4b11eaa459bb33989)
Bug: 204438323
Change-Id: I1beb35fa107e649fa67fb57737d7477fa740ad2f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 6f4943e1d43e2..77b5587ece7d7 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -344,7 +344,6 @@ enum {
 };
 #define UFS_DEV_HPB_SUPPORT_VERSION		0x310
 
-#define POWER_DESC_MAX_SIZE			0x62
 #define POWER_DESC_MAX_ACTV_ICC_LVLS		16
 
 /* Attribute  bActiveICCLevel parameter bit masks definitions */
-- 
GitLab


From 2daebf16f7c30636832a2a232d63e0f41706f38d Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Tue, 8 Dec 2020 21:56:35 +0800
Subject: [PATCH 0684/4878] UPSTREAM: scsi: ufs: Un-inline
 ufshcd_vops_device_reset function

More and more statements are being added to ufshcd_vops_device_reset() and
this function is being called from multiple locations in the driver.
Un-inline the function to allow the compiler to make better decisions.

Link: https://lore.kernel.org/r/20201208135635.15326-3-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 31a5d9cafff163473abf9496318b6a53022d48f7)
Bug: 204438323
Change-Id: Ib63ce7d7802e93eb153c19919870ecdd8e721a0d
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 27 ++++++++++++++++++++++-----
 drivers/scsi/ufs/ufshcd.h | 19 +++++--------------
 2 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8360c0816b60a..ddd72e1b92c71 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -587,6 +587,23 @@ static void ufshcd_print_pwr_info(struct ufs_hba *hba)
 		 hba->pwr_info.hs_rate);
 }
 
+static void ufshcd_device_reset(struct ufs_hba *hba)
+{
+	int err;
+
+	err = ufshcd_vops_device_reset(hba);
+
+	if (!err) {
+		ufshcd_set_ufs_dev_active(hba);
+		if (ufshcd_is_wb_allowed(hba)) {
+			hba->wb_enabled = false;
+			hba->wb_buf_flush_enabled = false;
+		}
+	}
+	if (err != -EOPNOTSUPP)
+		ufshcd_update_evt_hist(hba, UFS_EVT_DEV_RESET, err);
+}
+
 void ufshcd_delay_us(unsigned long us, unsigned long tolerance)
 {
 	if (!us)
@@ -4089,7 +4106,7 @@ int ufshcd_link_recovery(struct ufs_hba *hba)
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
 	/* Reset the attached device */
-	ufshcd_vops_device_reset(hba);
+	ufshcd_device_reset(hba);
 
 	ret = ufshcd_host_reset_and_restore(hba);
 
@@ -7123,7 +7140,7 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba)
 
 	do {
 		/* Reset the attached device */
-		ufshcd_vops_device_reset(hba);
+		ufshcd_device_reset(hba);
 
 		err = ufshcd_host_reset_and_restore(hba);
 	} while (err && --retries);
@@ -8833,7 +8850,7 @@ set_link_active:
 	 * further below.
 	 */
 	if (ufshcd_is_ufs_dev_deepsleep(hba)) {
-		ufshcd_vops_device_reset(hba);
+		ufshcd_device_reset(hba);
 		WARN_ON(!ufshcd_is_link_off(hba));
 	}
 	if (ufshcd_is_link_hibern8(hba) && !ufshcd_uic_hibern8_exit(hba))
@@ -8843,7 +8860,7 @@ set_link_active:
 set_dev_active:
 	/* Can also get here needing to exit DeepSleep */
 	if (ufshcd_is_ufs_dev_deepsleep(hba)) {
-		ufshcd_vops_device_reset(hba);
+		ufshcd_device_reset(hba);
 		ufshcd_host_reset_and_restore(hba);
 	}
 	if (!ufshcd_set_dev_pwr_mode(hba, UFS_ACTIVE_PWR_MODE))
@@ -9435,7 +9452,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	}
 
 	/* Reset the attached device */
-	ufshcd_vops_device_reset(hba);
+	ufshcd_device_reset(hba);
 
 	ufshcd_init_crypto(hba);
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index c91ef0a8b1cb9..678b3d0801b54 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1368,21 +1368,12 @@ static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba)
 		hba->vops->dbg_register_dump(hba);
 }
 
-static inline void ufshcd_vops_device_reset(struct ufs_hba *hba)
+static inline int ufshcd_vops_device_reset(struct ufs_hba *hba)
 {
-	if (hba->vops && hba->vops->device_reset) {
-		int err = hba->vops->device_reset(hba);
-
-		if (!err) {
-			ufshcd_set_ufs_dev_active(hba);
-			if (ufshcd_is_wb_allowed(hba)) {
-				hba->wb_enabled = false;
-				hba->wb_buf_flush_enabled = false;
-			}
-		}
-		if (err != -EOPNOTSUPP)
-			ufshcd_update_evt_hist(hba, UFS_EVT_DEV_RESET, err);
-	}
+	if (hba->vops && hba->vops->device_reset)
+		return hba->vops->device_reset(hba);
+
+	return -EOPNOTSUPP;
 }
 
 static inline void ufshcd_vops_config_scaling_param(struct ufs_hba *hba,
-- 
GitLab


From 532194fddeb1be94904dbef1ad70647927b0b8aa Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 5 Jan 2021 12:34:41 +0100
Subject: [PATCH 0685/4878] UPSTREAM: scsi: ufs: Remove stringize operator '#'
 restriction

Current EM macro definition, we use stringize operator '#', which turns the
argument it precedes into a quoted string. Thus requires the symbol of
__print_symbolic() should be the string corresponding to the name of the
enum.

However, we have other cases, the symbol and enum name are not the same, we
can redefine EM/EMe, but there will introduce some redundant codes.  This
patch is to remove this restriction, let others reuse the current EM/EMe
definition.

Link: https://lore.kernel.org/r/20210105113446.16027-2-huobean@gmail.com
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit c7c730ac6a88abbbc961f8838d28da85662389d0)
Bug: 204438323
Change-Id: Ib20ffee0cce2c430d8aea3c17c27127306ac6550
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 include/trace/events/ufs.h | 40 +++++++++++++++++++-------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index 0bd54a1843913..fa755394bc0f4 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -20,28 +20,28 @@
 		{ SYNCHRONIZE_CACHE,	"SYNC" },			\
 		{ UNMAP,		"UNMAP" })
 
-#define UFS_LINK_STATES			\
-	EM(UIC_LINK_OFF_STATE)		\
-	EM(UIC_LINK_ACTIVE_STATE)	\
-	EMe(UIC_LINK_HIBERN8_STATE)
-
-#define UFS_PWR_MODES			\
-	EM(UFS_ACTIVE_PWR_MODE)		\
-	EM(UFS_SLEEP_PWR_MODE)		\
-	EM(UFS_POWERDOWN_PWR_MODE)	\
-	EMe(UFS_DEEPSLEEP_PWR_MODE)
-
-#define UFSCHD_CLK_GATING_STATES	\
-	EM(CLKS_OFF)			\
-	EM(CLKS_ON)			\
-	EM(REQ_CLKS_OFF)		\
-	EMe(REQ_CLKS_ON)
+#define UFS_LINK_STATES						\
+	EM(UIC_LINK_OFF_STATE,		"UIC_LINK_OFF_STATE")		\
+	EM(UIC_LINK_ACTIVE_STATE,	"UIC_LINK_ACTIVE_STATE")	\
+	EMe(UIC_LINK_HIBERN8_STATE,	"UIC_LINK_HIBERN8_STATE")
+
+#define UFS_PWR_MODES							\
+	EM(UFS_ACTIVE_PWR_MODE,		"UFS_ACTIVE_PWR_MODE")		\
+	EM(UFS_SLEEP_PWR_MODE,		"UFS_SLEEP_PWR_MODE")		\
+	EM(UFS_POWERDOWN_PWR_MODE,	"UFS_POWERDOWN_PWR_MODE")	\
+	EMe(UFS_DEEPSLEEP_PWR_MODE,	"UFS_DEEPSLEEP_PWR_MODE")
+
+#define UFSCHD_CLK_GATING_STATES				\
+	EM(CLKS_OFF,			"CLKS_OFF")		\
+	EM(CLKS_ON,			"CLKS_ON")		\
+	EM(REQ_CLKS_OFF,		"REQ_CLKS_OFF")		\
+	EMe(REQ_CLKS_ON,		"REQ_CLKS_ON")
 
 /* Enums require being exported to userspace, for user tool parsing */
 #undef EM
 #undef EMe
-#define EM(a)	TRACE_DEFINE_ENUM(a);
-#define EMe(a)	TRACE_DEFINE_ENUM(a);
+#define EM(a, b)	TRACE_DEFINE_ENUM(a);
+#define EMe(a, b)	TRACE_DEFINE_ENUM(a);
 
 UFS_LINK_STATES;
 UFS_PWR_MODES;
@@ -53,8 +53,8 @@ UFSCHD_CLK_GATING_STATES;
  */
 #undef EM
 #undef EMe
-#define EM(a)	{ a, #a },
-#define EMe(a)	{ a, #a }
+#define EM(a, b)	{a, b},
+#define EMe(a, b)	{a, b}
 
 TRACE_EVENT(ufshcd_clk_gating,
 
-- 
GitLab


From 761aed4e6d97cf5d2add1ec6cf4e31336307e2e5 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 5 Jan 2021 12:34:42 +0100
Subject: [PATCH 0686/4878] UPSTREAM: scsi: ufs: Use __print_symbolic() for UFS
 trace string print

__print_symbolic() is designed for exporting the print formatting table to
userspace and allows parsing tool, such as trace-cmd and perf, to analyze
trace log according to this print formatting table, meanwhile, by using
__print_symbolic()s, save space in the trace ring buffer.

original print format:

print fmt: "%s: %s: HDR:%s, CDB:%s", __get_str(str), __get_str(dev_name),
            __print_hex(REC->hdr, sizeof(REC->hdr)),
            __print_hex(REC->tsf, sizeof(REC->tsf))

after this change:

print fmt: "%s: %s: HDR:%s, CDB:%s",
      print_symbolic(REC->str_t, {0, "send"},
                                 {1, "complete"},
                                 {2, "dev_complete"},
                                 {3, "query_send"},
                                 {4, "query_complete"},
                                 {5, "query_complete_err"},
                                 {6, "tm_send"},
                                 {7, "tm_complete"},
                                 {8, "tm_complete_err"}),
      __get_str(dev_name), __print_hex(REC->hdr, sizeof(REC->hdr)),
      __print_hex(REC->tsf, sizeof(REC->tsf))

Note: This patch just converts current __get_str(str) to __print_symbolic(),
      the original tracing log will not be affected by this change, so it
      doesn't break what current parsers expect.

Link: https://lore.kernel.org/r/20210105113446.16027-3-huobean@gmail.com
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[bvanasche: updated Android trace statements]
(cherry picked from commit 28fa68fc557a7eba02615aa7d97a7cbcfa94559d)
Bug: 204438323
Change-Id: Id8d4605fc304abbe90a8e654edb2e18c44f2e37d
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs.h     | 10 ++++++
 drivers/scsi/ufs/ufshcd.c  | 64 ++++++++++++++++++++++----------------
 include/trace/events/ufs.h | 54 +++++++++++++++++++++-----------
 3 files changed, 83 insertions(+), 45 deletions(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 77b5587ece7d7..74197e66f1ad5 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -598,6 +598,16 @@ struct ufs_dev_info {
 	ANDROID_KABI_RESERVE(1);
 };
 
+/*
+ * This enum is used in string mapping in include/trace/events/ufs.h.
+ */
+enum ufs_trace_str_t {
+	UFS_CMD_SEND, UFS_CMD_COMP, UFS_DEV_COMP,
+	UFS_QUERY_SEND, UFS_QUERY_COMP, UFS_QUERY_ERR,
+	UFS_TM_SEND, UFS_TM_COMP, UFS_TM_ERR
+};
+
+
 /**
  * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
  * @dev_info: pointer of instance of struct ufs_dev_info
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ddd72e1b92c71..b69b676c8cc43 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -309,55 +309,67 @@ static void ufshcd_scsi_block_requests(struct ufs_hba *hba)
 }
 
 static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
-		const char *str)
+				      enum ufs_trace_str_t str_t)
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
 
-	trace_ufshcd_upiu(dev_name(hba->dev), str, &rq->header, &rq->sc.cdb);
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb);
 }
 
 static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
-		const char *str)
+					enum ufs_trace_str_t str_t)
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
 
-	trace_ufshcd_upiu(dev_name(hba->dev), str, &rq->header, &rq->qr);
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->qr);
 }
 
+#undef EM
+#undef EMe
+#define EM(label, string)  [label] = string,
+#define EMe(label, string) [label] = string
+
+static const char *str_t_to_str[] = {
+	UFS_CMD_TRACE_STRINGS
+};
+
+#undef EMe
+#undef EM
+
 static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
-		const char *str)
+				     enum ufs_trace_str_t str_t)
 {
 	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag];
 
-	trace_android_vh_ufs_send_tm_command(hba, tag, str);
-	trace_ufshcd_upiu(dev_name(hba->dev), str, &descp->req_header,
+	trace_android_vh_ufs_send_tm_command(hba, tag, str_t_to_str[str_t]);
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
 			&descp->input_param1);
 }
 
 static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
 					 struct uic_command *ucmd,
-					 const char *str)
+					 enum ufs_trace_str_t str_t)
 {
 	u32 cmd;
 
-	trace_android_vh_ufs_send_uic_command(hba, ucmd, str);
+	trace_android_vh_ufs_send_uic_command(hba, ucmd, str_t_to_str[str_t]);
 
 	if (!trace_ufshcd_uic_command_enabled())
 		return;
 
-	if (!strcmp(str, "send"))
+	if (str_t == UFS_CMD_SEND)
 		cmd = ucmd->command;
 	else
 		cmd = ufshcd_readl(hba, REG_UIC_COMMAND);
 
-	trace_ufshcd_uic_command(dev_name(hba->dev), str, cmd,
+	trace_ufshcd_uic_command(dev_name(hba->dev), str_t, cmd,
 				 ufshcd_readl(hba, REG_UIC_COMMAND_ARG_1),
 				 ufshcd_readl(hba, REG_UIC_COMMAND_ARG_2),
 				 ufshcd_readl(hba, REG_UIC_COMMAND_ARG_3));
 }
 
-static void ufshcd_add_command_trace(struct ufs_hba *hba,
-		unsigned int tag, const char *str)
+static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
+				     enum ufs_trace_str_t str_t)
 {
 	sector_t lba = -1;
 	u8 opcode = 0, group_id = 0;
@@ -369,13 +381,13 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba,
 	if (!trace_ufshcd_command_enabled()) {
 		/* trace UPIU W/O tracing command */
 		if (cmd)
-			ufshcd_add_cmd_upiu_trace(hba, tag, str);
+			ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
 		return;
 	}
 
 	if (cmd) { /* data phase exists */
 		/* trace UPIU also */
-		ufshcd_add_cmd_upiu_trace(hba, tag, str);
+		ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
 		opcode = cmd->cmnd[0];
 		if ((opcode == READ_10) || (opcode == WRITE_10)) {
 			/*
@@ -398,7 +410,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba,
 
 	intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
 	doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-	trace_ufshcd_command(dev_name(hba->dev), str, tag,
+	trace_ufshcd_command(dev_name(hba->dev), str_t, tag,
 			doorbell, transfer_len, intr, lba, opcode, group_id);
 }
 
@@ -2109,7 +2121,7 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 	lrbp->compl_time_stamp = ktime_set(0, 0);
 	ufshcd_vops_setup_xfer_req(hba, task_tag, (lrbp->cmd ? true : false));
 	trace_android_vh_ufs_send_command(hba, lrbp);
-	ufshcd_add_command_trace(hba, task_tag, "send");
+	ufshcd_add_command_trace(hba, task_tag, UFS_CMD_SEND);
 	ufshcd_clk_scaling_start_busy(hba);
 	if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 		ufshcd_start_monitor(hba, lrbp);
@@ -2258,7 +2270,7 @@ ufshcd_dispatch_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd)
 	ufshcd_writel(hba, uic_cmd->argument2, REG_UIC_COMMAND_ARG_2);
 	ufshcd_writel(hba, uic_cmd->argument3, REG_UIC_COMMAND_ARG_3);
 
-	ufshcd_add_uic_command_trace(hba, uic_cmd, "send");
+	ufshcd_add_uic_command_trace(hba, uic_cmd, UFS_CMD_SEND);
 
 	/* Write UIC Cmd */
 	ufshcd_writel(hba, uic_cmd->command & COMMAND_OPCODE_MASK,
@@ -2976,14 +2988,14 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 
 	hba->dev_cmd.complete = &wait;
 
-	ufshcd_add_query_upiu_trace(hba, tag, "query_send");
+	ufshcd_add_query_upiu_trace(hba, tag, UFS_QUERY_SEND);
 	/* Make sure descriptors are ready before ringing the doorbell */
 	wmb();
 
 	ufshcd_send_command(hba, tag);
 	err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout);
 	ufshcd_add_query_upiu_trace(hba, tag,
-			err ? "query_complete_err" : "query_complete");
+			err ? UFS_QUERY_ERR : UFS_QUERY_COMP);
 
 out:
 	blk_put_request(req);
@@ -5213,7 +5225,7 @@ static irqreturn_t ufshcd_uic_cmd_compl(struct ufs_hba *hba, u32 intr_status)
 
 	if (retval == IRQ_HANDLED)
 		ufshcd_add_uic_command_trace(hba, hba->active_uic_cmd,
-					     "complete");
+					     UFS_CMD_COMP);
 	spin_unlock(hba->host->host_lock);
 	return retval;
 }
@@ -5242,7 +5254,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 			if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 				ufshcd_update_monitor(hba, lrbp);
 			trace_android_vh_ufs_compl_command(hba, lrbp);
-			ufshcd_add_command_trace(hba, index, "complete");
+			ufshcd_add_command_trace(hba, index, UFS_CMD_COMP);
 			result = ufshcd_transfer_rsp_status(hba, lrbp);
 			scsi_dma_unmap(cmd);
 			cmd->result = result;
@@ -5258,7 +5270,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 			if (hba->dev_cmd.complete) {
 				trace_android_vh_ufs_compl_command(hba, lrbp);
 				ufshcd_add_command_trace(hba, index,
-						"dev_complete");
+							 UFS_DEV_COMP);
 				complete(hba->dev_cmd.complete);
 				update_scaling = true;
 			}
@@ -6556,7 +6568,7 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 
 	spin_unlock_irqrestore(host->host_lock, flags);
 
-	ufshcd_add_tm_upiu_trace(hba, task_tag, "tm_send");
+	ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_SEND);
 
 	/* wait until the task management command is completed */
 	err = wait_for_completion_io_timeout(&wait,
@@ -6567,7 +6579,7 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 		 * use-after-free.
 		 */
 		req->end_io_data = NULL;
-		ufshcd_add_tm_upiu_trace(hba, task_tag, "tm_complete_err");
+		ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_ERR);
 		dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n",
 				__func__, tm_function);
 		if (ufshcd_clear_tm_cmd(hba, task_tag))
@@ -6578,7 +6590,7 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 		err = 0;
 		memcpy(treq, hba->utmrdl_base_addr + task_tag, sizeof(*treq));
 
-		ufshcd_add_tm_upiu_trace(hba, task_tag, "tm_complete");
+		ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_COMP);
 	}
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index fa755394bc0f4..7613a5cd14dee 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -37,6 +37,17 @@
 	EM(REQ_CLKS_OFF,		"REQ_CLKS_OFF")		\
 	EMe(REQ_CLKS_ON,		"REQ_CLKS_ON")
 
+#define UFS_CMD_TRACE_STRINGS					\
+	EM(UFS_CMD_SEND,	"send_req")			\
+	EM(UFS_CMD_COMP,	"complete_rsp")			\
+	EM(UFS_DEV_COMP,	"dev_complete")			\
+	EM(UFS_QUERY_SEND,	"query_send")			\
+	EM(UFS_QUERY_COMP,	"query_complete")		\
+	EM(UFS_QUERY_ERR,	"query_complete_err")		\
+	EM(UFS_TM_SEND,		"tm_send")			\
+	EM(UFS_TM_COMP,		"tm_complete")			\
+	EMe(UFS_TM_ERR,		"tm_complete_err")
+
 /* Enums require being exported to userspace, for user tool parsing */
 #undef EM
 #undef EMe
@@ -46,6 +57,7 @@
 UFS_LINK_STATES;
 UFS_PWR_MODES;
 UFSCHD_CLK_GATING_STATES;
+UFS_CMD_TRACE_STRINGS
 
 /*
  * Now redefine the EM() and EMe() macros to map the enums to the strings
@@ -56,6 +68,9 @@ UFSCHD_CLK_GATING_STATES;
 #define EM(a, b)	{a, b},
 #define EMe(a, b)	{a, b}
 
+#define show_ufs_cmd_trace_str(str_t)	\
+				__print_symbolic(str_t, UFS_CMD_TRACE_STRINGS)
+
 TRACE_EVENT(ufshcd_clk_gating,
 
 	TP_PROTO(const char *dev_name, int state),
@@ -223,16 +238,16 @@ DEFINE_EVENT(ufshcd_template, ufshcd_init,
 	     TP_ARGS(dev_name, err, usecs, dev_state, link_state));
 
 TRACE_EVENT(ufshcd_command,
-	TP_PROTO(const char *dev_name, const char *str, unsigned int tag,
-			u32 doorbell, int transfer_len, u32 intr, u64 lba,
-			u8 opcode, u8 group_id),
+	TP_PROTO(const char *dev_name, enum ufs_trace_str_t str_t,
+		 unsigned int tag, u32 doorbell, int transfer_len, u32 intr,
+		 u64 lba, u8 opcode, u8 group_id),
 
-	TP_ARGS(dev_name, str, tag, doorbell, transfer_len,
+	TP_ARGS(dev_name, str_t, tag, doorbell, transfer_len,
 				intr, lba, opcode, group_id),
 
 	TP_STRUCT__entry(
 		__string(dev_name, dev_name)
-		__string(str, str)
+		__field(enum ufs_trace_str_t, str_t)
 		__field(unsigned int, tag)
 		__field(u32, doorbell)
 		__field(int, transfer_len)
@@ -244,7 +259,7 @@ TRACE_EVENT(ufshcd_command,
 
 	TP_fast_assign(
 		__assign_str(dev_name, dev_name);
-		__assign_str(str, str);
+		__entry->str_t = str_t;
 		__entry->tag = tag;
 		__entry->doorbell = doorbell;
 		__entry->transfer_len = transfer_len;
@@ -256,22 +271,22 @@ TRACE_EVENT(ufshcd_command,
 
 	TP_printk(
 		"%s: %s: tag: %u, DB: 0x%x, size: %d, IS: %u, LBA: %llu, opcode: 0x%x (%s), group_id: 0x%x",
-		__get_str(str), __get_str(dev_name), __entry->tag,
-		__entry->doorbell, __entry->transfer_len,
+		show_ufs_cmd_trace_str(__entry->str_t), __get_str(dev_name),
+		__entry->tag, __entry->doorbell, __entry->transfer_len,
 		__entry->intr, __entry->lba, (u32)__entry->opcode,
 		str_opcode(__entry->opcode), (u32)__entry->group_id
 	)
 );
 
 TRACE_EVENT(ufshcd_uic_command,
-	TP_PROTO(const char *dev_name, const char *str, u32 cmd,
+	TP_PROTO(const char *dev_name, enum ufs_trace_str_t str_t, u32 cmd,
 		 u32 arg1, u32 arg2, u32 arg3),
 
-	TP_ARGS(dev_name, str, cmd, arg1, arg2, arg3),
+	TP_ARGS(dev_name, str_t, cmd, arg1, arg2, arg3),
 
 	TP_STRUCT__entry(
 		__string(dev_name, dev_name)
-		__string(str, str)
+		__field(enum ufs_trace_str_t, str_t)
 		__field(u32, cmd)
 		__field(u32, arg1)
 		__field(u32, arg2)
@@ -280,7 +295,7 @@ TRACE_EVENT(ufshcd_uic_command,
 
 	TP_fast_assign(
 		__assign_str(dev_name, dev_name);
-		__assign_str(str, str);
+		__entry->str_t = str_t;
 		__entry->cmd = cmd;
 		__entry->arg1 = arg1;
 		__entry->arg2 = arg2;
@@ -289,33 +304,34 @@ TRACE_EVENT(ufshcd_uic_command,
 
 	TP_printk(
 		"%s: %s: cmd: 0x%x, arg1: 0x%x, arg2: 0x%x, arg3: 0x%x",
-		__get_str(str), __get_str(dev_name), __entry->cmd,
-		__entry->arg1, __entry->arg2, __entry->arg3
+		show_ufs_cmd_trace_str(__entry->str_t), __get_str(dev_name),
+		__entry->cmd, __entry->arg1, __entry->arg2, __entry->arg3
 	)
 );
 
 TRACE_EVENT(ufshcd_upiu,
-	TP_PROTO(const char *dev_name, const char *str, void *hdr, void *tsf),
+	TP_PROTO(const char *dev_name, enum ufs_trace_str_t str_t, void *hdr,
+		 void *tsf),
 
-	TP_ARGS(dev_name, str, hdr, tsf),
+	TP_ARGS(dev_name, str_t, hdr, tsf),
 
 	TP_STRUCT__entry(
 		__string(dev_name, dev_name)
-		__string(str, str)
+		__field(enum ufs_trace_str_t, str_t)
 		__array(unsigned char, hdr, 12)
 		__array(unsigned char, tsf, 16)
 	),
 
 	TP_fast_assign(
 		__assign_str(dev_name, dev_name);
-		__assign_str(str, str);
+		__entry->str_t = str_t;
 		memcpy(__entry->hdr, hdr, sizeof(__entry->hdr));
 		memcpy(__entry->tsf, tsf, sizeof(__entry->tsf));
 	),
 
 	TP_printk(
 		"%s: %s: HDR:%s, CDB:%s",
-		__get_str(str), __get_str(dev_name),
+		show_ufs_cmd_trace_str(__entry->str_t), __get_str(dev_name),
 		__print_hex(__entry->hdr, sizeof(__entry->hdr)),
 		__print_hex(__entry->tsf, sizeof(__entry->tsf))
 	)
-- 
GitLab


From 5ceb0f7be3b68a37884e6bbb32f1eff021f589d1 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 5 Jan 2021 12:34:43 +0100
Subject: [PATCH 0687/4878] UPSTREAM: scsi: ufs: Don't call trace_ufshcd_upiu()
 in case trace poit is disabled

Don't call trace_ufshcd_upiu() in case ufshba_upiu trace poit is not
enabled.

Link: https://lore.kernel.org/r/20210105113446.16027-4-huobean@gmail.com
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9d5095e74c830f0251a913b9147ee091ad228b56)
Bug: 204438323
Change-Id: Ia205c0aadd5c830eed89f3c69ec1da45ee3f070e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b69b676c8cc43..cbc4625899237 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -313,6 +313,9 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
 
+	if (!trace_ufshcd_upiu_enabled())
+		return;
+
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb);
 }
 
@@ -321,6 +324,9 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
 
+	if (!trace_ufshcd_upiu_enabled())
+		return;
+
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->qr);
 }
 
@@ -341,6 +347,9 @@ static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 {
 	struct utp_task_req_desc *descp = &hba->utmrdl_base_addr[tag];
 
+	if (!trace_ufshcd_upiu_enabled())
+		return;
+
 	trace_android_vh_ufs_send_tm_command(hba, tag, str_t_to_str[str_t]);
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
 			&descp->input_param1);
-- 
GitLab


From db02af8d32917be8dde81a8c8c9b205d12d98130 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 5 Jan 2021 12:34:44 +0100
Subject: [PATCH 0688/4878] UPSTREAM: scsi: ufs: Distinguish between query REQ
 and query RSP in query trace

Currently, in the query completion trace print, since we use
hba->lrb[tag].ucd_req_ptr and didn't differentiate UPIU between request and
response, thus header and transaction-specific field in UPIU printed by
query trace are identical. This is not very practical. As below:

query_send: HDR:16 00 00 0e 00 81 00 00 00 00 00 00, CDB:06 0e 03 00 00 00 00 00 00 00 00 00 00 00 00 00
query_complete: HDR:16 00 00 0e 00 81 00 00 00 00 00 00, CDB:06 0e 03 00 00 00 00 00 00 00 00 00 00 00 00 00

For the failure analysis, we want to understand the real response reported
by the UFS device, however, the current query trace tells us nothing. After
this patch, the query trace on the query_send, and the above a pair of
query_send and query_complete will be:

query_send: HDR:16 00 00 0e 00 81 00 00 00 00 00 00, CDB:06 0e 03 00 00 00 00 00 00 00 00 00 00 00 00 00
ufshcd_upiu: HDR:36 00 00 0e 00 81 00 00 00 00 00 00, CDB:06 0e 03 00 00 00 00 00 00 00 00 01 00 00 00 00

Link: https://lore.kernel.org/r/20210105113446.16027-5-huobean@gmail.com
Acked-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit be20b51cfd8539d99ec712c52ada7fbdc9f2850f)
Bug: 204438323
Change-Id: Ie5254274cbf2882396c8b1aacdf4b0dd2bb7e413
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index cbc4625899237..d487631590446 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -322,12 +322,18 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 					enum ufs_trace_str_t str_t)
 {
-	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
+	struct utp_upiu_req *rq_rsp;
 
 	if (!trace_ufshcd_upiu_enabled())
 		return;
 
-	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->qr);
+	if (str_t == UFS_QUERY_SEND)
+		rq_rsp = hba->lrb[tag].ucd_req_ptr;
+	else
+		rq_rsp = (struct utp_upiu_req *)hba->lrb[tag].ucd_rsp_ptr;
+
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq_rsp->header,
+			  &rq_rsp->qr);
 }
 
 #undef EM
-- 
GitLab


From 08ef43477b9fe3c4de4a25f6d686bdb7c1ad4776 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 5 Jan 2021 12:34:45 +0100
Subject: [PATCH 0689/4878] UPSTREAM: scsi: ufs: Distinguish between TM request
 UPIU and response UPIU in TM UPIU trace

Distinguish between TM request UPIU and response UPIU in TM UPIU trace, for
the TM response, let TM UPIU trace print its TM response UPIU.

Link: https://lore.kernel.org/r/20210105113446.16027-6-huobean@gmail.com
Acked-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 0ed083e916620a1ea95f7e0722ce8bcc001f9caf)
Bug: 204438323
Change-Id: I04a22f8ff90f11d938e43570d49f69391f9bd9ed
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d487631590446..e0ed9748be5f5 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -357,8 +357,12 @@ static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 		return;
 
 	trace_android_vh_ufs_send_tm_command(hba, tag, str_t_to_str[str_t]);
-	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
-			&descp->input_param1);
+	if (str_t == UFS_TM_SEND)
+		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
+				  &descp->input_param1);
+	else
+		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->rsp_header,
+				  &descp->output_param1);
 }
 
 static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
-- 
GitLab


From fcc5df248112fb0372221d840c8273674475c81b Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 5 Jan 2021 12:34:46 +0100
Subject: [PATCH 0690/4878] UPSTREAM: scsi: ufs: Make UPIU trace easier
 differentiate among CDB, OSF, and TM

Transaction Specific Fields (TSF) in the UPIU package could be CDB
(SCSI/UFS Command Descriptor Block), OSF (Opcode Specific Field), and TM
I/O parameter (Task Management Input/Output Parameter). But, currently, we
take all of these as CDB in the UPIU trace. Thus makes user confuse among
CDB, OSF, and TM message. So fix it with this patch.

Link: https://lore.kernel.org/r/20210105113446.16027-7-huobean@gmail.com
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 867fdc2d6e34635b2708cfa5d7e1100b3f298337)
Bug: 204438323
Change-Id: I0a58393c5febba32d174a554a568fd00abbbc9fb
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs.h     |  7 +++++++
 drivers/scsi/ufs/ufshcd.c  |  9 +++++----
 include/trace/events/ufs.h | 18 +++++++++++++++---
 3 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 74197e66f1ad5..d5e9fd45515ce 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -607,6 +607,13 @@ enum ufs_trace_str_t {
 	UFS_TM_SEND, UFS_TM_COMP, UFS_TM_ERR
 };
 
+/*
+ * Transaction Specific Fields (TSF) type in the UPIU package, this enum is
+ * used in include/trace/events/ufs.h for UFS command trace.
+ */
+enum ufs_trace_tsf_t {
+	UFS_TSF_CDB, UFS_TSF_OSF, UFS_TSF_TM_INPUT, UFS_TSF_TM_OUTPUT
+};
 
 /**
  * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e0ed9748be5f5..6318dc5845fc2 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -316,7 +316,8 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 	if (!trace_ufshcd_upiu_enabled())
 		return;
 
-	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb);
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb,
+			  UFS_TSF_CDB);
 }
 
 static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
@@ -333,7 +334,7 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 		rq_rsp = (struct utp_upiu_req *)hba->lrb[tag].ucd_rsp_ptr;
 
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq_rsp->header,
-			  &rq_rsp->qr);
+			  &rq_rsp->qr, UFS_TSF_OSF);
 }
 
 #undef EM
@@ -359,10 +360,10 @@ static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 	trace_android_vh_ufs_send_tm_command(hba, tag, str_t_to_str[str_t]);
 	if (str_t == UFS_TM_SEND)
 		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
-				  &descp->input_param1);
+				  &descp->input_param1, UFS_TSF_TM_INPUT);
 	else
 		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->rsp_header,
-				  &descp->output_param1);
+				  &descp->output_param1, UFS_TSF_TM_OUTPUT);
 }
 
 static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index 7613a5cd14dee..e151477d645c1 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -48,6 +48,12 @@
 	EM(UFS_TM_COMP,		"tm_complete")			\
 	EMe(UFS_TM_ERR,		"tm_complete_err")
 
+#define UFS_CMD_TRACE_TSF_TYPES					\
+	EM(UFS_TSF_CDB,		"CDB")		                \
+	EM(UFS_TSF_OSF,		"OSF")		                \
+	EM(UFS_TSF_TM_INPUT,	"TM_INPUT")                     \
+	EMe(UFS_TSF_TM_OUTPUT,	"TM_OUTPUT")
+
 /* Enums require being exported to userspace, for user tool parsing */
 #undef EM
 #undef EMe
@@ -58,6 +64,7 @@ UFS_LINK_STATES;
 UFS_PWR_MODES;
 UFSCHD_CLK_GATING_STATES;
 UFS_CMD_TRACE_STRINGS
+UFS_CMD_TRACE_TSF_TYPES
 
 /*
  * Now redefine the EM() and EMe() macros to map the enums to the strings
@@ -70,6 +77,8 @@ UFS_CMD_TRACE_STRINGS
 
 #define show_ufs_cmd_trace_str(str_t)	\
 				__print_symbolic(str_t, UFS_CMD_TRACE_STRINGS)
+#define show_ufs_cmd_trace_tsf(tsf)	\
+				__print_symbolic(tsf, UFS_CMD_TRACE_TSF_TYPES)
 
 TRACE_EVENT(ufshcd_clk_gating,
 
@@ -311,15 +320,16 @@ TRACE_EVENT(ufshcd_uic_command,
 
 TRACE_EVENT(ufshcd_upiu,
 	TP_PROTO(const char *dev_name, enum ufs_trace_str_t str_t, void *hdr,
-		 void *tsf),
+		 void *tsf, enum ufs_trace_tsf_t tsf_t),
 
-	TP_ARGS(dev_name, str_t, hdr, tsf),
+	TP_ARGS(dev_name, str_t, hdr, tsf, tsf_t),
 
 	TP_STRUCT__entry(
 		__string(dev_name, dev_name)
 		__field(enum ufs_trace_str_t, str_t)
 		__array(unsigned char, hdr, 12)
 		__array(unsigned char, tsf, 16)
+		__field(enum ufs_trace_tsf_t, tsf_t)
 	),
 
 	TP_fast_assign(
@@ -327,12 +337,14 @@ TRACE_EVENT(ufshcd_upiu,
 		__entry->str_t = str_t;
 		memcpy(__entry->hdr, hdr, sizeof(__entry->hdr));
 		memcpy(__entry->tsf, tsf, sizeof(__entry->tsf));
+		__entry->tsf_t = tsf_t;
 	),
 
 	TP_printk(
-		"%s: %s: HDR:%s, CDB:%s",
+		"%s: %s: HDR:%s, %s:%s",
 		show_ufs_cmd_trace_str(__entry->str_t), __get_str(dev_name),
 		__print_hex(__entry->hdr, sizeof(__entry->hdr)),
+		show_ufs_cmd_trace_tsf(__entry->tsf_t),
 		__print_hex(__entry->tsf, sizeof(__entry->tsf))
 	)
 );
-- 
GitLab


From 54748dbb28671870ce2e9499b76bfdd4c70c553f Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 6 Jan 2021 12:55:54 -0800
Subject: [PATCH 0691/4878] UPSTREAM: scsi: ufs: Fix all Kconfig help text
 indentation

Use consistent and expected indentation for all Kconfig text.

Link: https://lore.kernel.org/r/20210106205554.18082-1-rdunlap@infradead.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: linux-scsi@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit aaac0ea983906cb145e5decfe6252fa787edcc4b)
Bug: 204438323
Change-Id: I707f7bc68b40f301b9c83e2596f584ebf4565414
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/Kconfig | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index 6ed69205c75f6..ee650526c5605 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -39,7 +39,7 @@ config SCSI_UFSHCD
 	select DEVFREQ_GOV_SIMPLE_ONDEMAND
 	select NLS
 	help
-	This selects the support for UFS devices in Linux, say Y and make
+	  This selects the support for UFS devices in Linux, say Y and make
 	  sure that you know the name of your UFS host adapter (the card
 	  inside your computer that "speaks" the UFS protocol, also
 	  called UFS Host Controller), because you will be asked for it.
@@ -54,8 +54,8 @@ config SCSI_UFSHCD_PCI
 	tristate "PCI bus based UFS Controller support"
 	depends on SCSI_UFSHCD && PCI
 	help
-	This selects the PCI UFS Host Controller Interface. Select this if
-	you have UFS Host Controller with PCI Interface.
+	  This selects the PCI UFS Host Controller Interface. Select this if
+	  you have UFS Host Controller with PCI Interface.
 
 	  If you have a controller with this interface, say Y or M here.
 
@@ -74,10 +74,10 @@ config SCSI_UFSHCD_PLATFORM
 	depends on SCSI_UFSHCD
 	depends on HAS_IOMEM
 	help
-	This selects the UFS host controller support. Select this if
-	you have an UFS controller on Platform bus.
+	  This selects the UFS host controller support. Select this if
+	  you have an UFS controller on Platform bus.
 
-	If you have a controller with this interface, say Y or M here.
+	  If you have a controller with this interface, say Y or M here.
 
 	  If unsure, say N.
 
@@ -85,7 +85,7 @@ config SCSI_UFS_CDNS_PLATFORM
 	tristate "Cadence UFS Controller platform driver"
 	depends on SCSI_UFSHCD_PLATFORM
 	help
-	This selects the Cadence-specific additions to UFSHCD platform driver.
+	  This selects the Cadence-specific additions to UFSHCD platform driver.
 
 	  If unsure, say N.
 
-- 
GitLab


From e9ca328c8c911383d25e398abe2f278dc3e14c14 Mon Sep 17 00:00:00 2001
From: Avri Altman <avri.altman@wdc.com>
Date: Tue, 5 Jan 2021 12:34:46 +0100
Subject: [PATCH 0692/4878] UPSTREAM: scsi: ufs: A tad optimization in query
 upiu trace

Remove a redundant if clause in ufshcd_add_query_upiu_trace.

Link: https://lore.kernel.org/r/20210110084618.189371-1-avri.altman@wdc.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit fb475b74d6630e934718d195ac209f303846dbe9)
Bug: 204438323
Change-Id: Id1968a12559b5205cdc7674f1ac536c1d085a440
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6318dc5845fc2..d2ba59a199c9d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -320,19 +320,13 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 			  UFS_TSF_CDB);
 }
 
-static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
-					enum ufs_trace_str_t str_t)
+static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba,
+					enum ufs_trace_str_t str_t,
+					struct utp_upiu_req *rq_rsp)
 {
-	struct utp_upiu_req *rq_rsp;
-
 	if (!trace_ufshcd_upiu_enabled())
 		return;
 
-	if (str_t == UFS_QUERY_SEND)
-		rq_rsp = hba->lrb[tag].ucd_req_ptr;
-	else
-		rq_rsp = (struct utp_upiu_req *)hba->lrb[tag].ucd_rsp_ptr;
-
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq_rsp->header,
 			  &rq_rsp->qr, UFS_TSF_OSF);
 }
@@ -3008,14 +3002,14 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 
 	hba->dev_cmd.complete = &wait;
 
-	ufshcd_add_query_upiu_trace(hba, tag, UFS_QUERY_SEND);
+	ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr);
 	/* Make sure descriptors are ready before ringing the doorbell */
 	wmb();
 
 	ufshcd_send_command(hba, tag);
 	err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout);
-	ufshcd_add_query_upiu_trace(hba, tag,
-			err ? UFS_QUERY_ERR : UFS_QUERY_COMP);
+	ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP,
+				    (struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
 
 out:
 	blk_put_request(req);
-- 
GitLab


From 77de4fc3c104599d201b662c0af7768847dbe011 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 12 Jan 2021 10:21:28 +0100
Subject: [PATCH 0693/4878] UPSTREAM: scsi: ufs: Remove unnecessary
 devm_kfree()

The memory allocated with devm_kzalloc() is freed automatically no need to
explicitly call devm_kfree(). Delete it and save some instruction cycles.

Link: https://lore.kernel.org/r/20210112092128.19295-1-huobean@gmail.com
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit b64750a1b65ac7a7dfaf62f75c2e211a51a7914a)
Bug: 204438323
Change-Id: I05096acb5bd2872270e531cd6803ebcc9f35bd30
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-crypto.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-crypto.c b/drivers/scsi/ufs/ufshcd-crypto.c
index 7604c07447464..072ef2790a71c 100644
--- a/drivers/scsi/ufs/ufshcd-crypto.c
+++ b/drivers/scsi/ufs/ufshcd-crypto.c
@@ -198,7 +198,7 @@ int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba)
 	err = devm_blk_ksm_init(hba->dev, &hba->ksm,
 				hba->crypto_capabilities.config_count + 1);
 	if (err)
-		goto out_free_caps;
+		goto out;
 
 	hba->ksm.ksm_ll_ops = ufshcd_ksm_ops;
 	/* UFS only supports 8 bytes for any DUN */
@@ -225,8 +225,6 @@ int ufshcd_hba_init_crypto_capabilities(struct ufs_hba *hba)
 
 	return 0;
 
-out_free_caps:
-	devm_kfree(hba->dev, hba->crypto_cap_array);
 out:
 	/* Indicate that init failed by clearing UFSHCD_CAP_CRYPTO */
 	hba->caps &= ~UFSHCD_CAP_CRYPTO;
-- 
GitLab


From 69b48f79e69bcbcb7883de10a679455af8fbd26d Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Fri, 29 Oct 2021 10:10:03 -0700
Subject: [PATCH 0694/4878] ANDROID: scsi: ufs: Protect PM ops and err_handler
 from user access through sysfs

Commit 3a3b24ef29a8 ("BACKPORT: FROMGIT: scsi: ufs: Protect PM ops and
err_handler from user access through sysfs") applied most of the
upstream commit 9cd20d3f4736 ("scsi: ufs: Protect PM ops and err_handler
from user access through sysfs") but not all of it. Backport the
remaining changes to Android.

Bug: 204438323
Change-Id: Iab8276ea4259f6ea821db9542e2580b304b7fb92
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c | 106 +++++++++++++++++++++++++++++------
 1 file changed, 90 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index fa5e0ddcbd7b3..8d2a9466bc130 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -156,18 +156,29 @@ static ssize_t auto_hibern8_show(struct device *dev,
 				 struct device_attribute *attr, char *buf)
 {
 	u32 ahit;
+	int ret;
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
 	if (!ufshcd_is_auto_hibern8_supported(hba))
 		return -EOPNOTSUPP;
 
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
 	pm_runtime_get_sync(hba->dev);
 	ufshcd_hold(hba, false);
 	ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER);
 	ufshcd_release(hba);
 	pm_runtime_put_sync(hba->dev);
 
-	return sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit));
+	ret = sysfs_emit(buf, "%d\n", ufshcd_ahit_to_us(ahit));
+
+out:
+	up(&hba->host_sem);
+	return ret;
 }
 
 static ssize_t auto_hibern8_store(struct device *dev,
@@ -176,6 +187,7 @@ static ssize_t auto_hibern8_store(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 	unsigned int timer;
+	int ret = 0;
 
 	if (!ufshcd_is_auto_hibern8_supported(hba))
 		return -EOPNOTSUPP;
@@ -186,9 +198,17 @@ static ssize_t auto_hibern8_store(struct device *dev,
 	if (timer > UFSHCI_AHIBERN8_MAX)
 		return -EINVAL;
 
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
 	ufshcd_auto_hibern8_update(hba, ufshcd_us_to_ahit(timer));
 
-	return count;
+out:
+	up(&hba->host_sem);
+	return ret ? ret : count;
 }
 
 static DEVICE_ATTR_RW(rpm_lvl);
@@ -463,12 +483,21 @@ static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
 	if (param_size > 8)
 		return -EINVAL;
 
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
 	pm_runtime_get_sync(hba->dev);
 	ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
 				param_offset, desc_buf, param_size);
 	pm_runtime_put_sync(hba->dev);
-	if (ret)
-		return -EINVAL;
+	if (ret) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	switch (param_size) {
 	case 1:
 		ret = sysfs_emit(sysfs_buf, "0x%02X\n", *desc_buf);
@@ -487,6 +516,8 @@ static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
 		break;
 	}
 
+out:
+	up(&hba->host_sem);
 	return ret;
 }
 
@@ -841,9 +872,16 @@ static ssize_t _name##_show(struct device *dev,				\
 	int desc_len = QUERY_DESC_MAX_SIZE;				\
 	u8 *desc_buf;							\
 									\
+	down(&hba->host_sem);						\
+	if (!ufshcd_is_user_access_allowed(hba)) {			\
+		up(&hba->host_sem);					\
+		return -EBUSY;						\
+	}								\
 	desc_buf = kzalloc(QUERY_DESC_MAX_SIZE, GFP_ATOMIC);		\
-	if (!desc_buf)                                                  \
-		return -ENOMEM;                                         \
+	if (!desc_buf) {						\
+		up(&hba->host_sem);					\
+		return -ENOMEM;						\
+	}								\
 	pm_runtime_get_sync(hba->dev);					\
 	ret = ufshcd_query_descriptor_retry(hba,			\
 		UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE,	\
@@ -859,10 +897,11 @@ static ssize_t _name##_show(struct device *dev,				\
 				      SD_ASCII_STD);			\
 	if (ret < 0)							\
 		goto out;						\
-	ret = sysfs_emit(buf, "%s\n", desc_buf);		\
+	ret = sysfs_emit(buf, "%s\n", desc_buf);			\
 out:									\
 	pm_runtime_put_sync(hba->dev);					\
 	kfree(desc_buf);						\
+	up(&hba->host_sem);						\
 	return ret;							\
 }									\
 static DEVICE_ATTR_RO(_name)
@@ -901,15 +940,26 @@ static ssize_t _name##_show(struct device *dev,				\
 	u8 index = 0;							\
 	int ret;							\
 	struct ufs_hba *hba = dev_get_drvdata(dev);			\
+									\
+	down(&hba->host_sem);						\
+	if (!ufshcd_is_user_access_allowed(hba)) {			\
+		up(&hba->host_sem);					\
+		return -EBUSY;						\
+	}								\
 	if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname))			\
 		index = ufshcd_wb_get_query_index(hba);			\
 	pm_runtime_get_sync(hba->dev);					\
 	ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG,	\
 		QUERY_FLAG_IDN##_uname, index, &flag);			\
 	pm_runtime_put_sync(hba->dev);					\
-	if (ret)							\
-		return -EINVAL;						\
-	return sysfs_emit(buf, "%s\n", flag ? "true" : "false");	\
+	if (ret) {							\
+		ret = -EINVAL;						\
+		goto out;						\
+	}								\
+	ret = sysfs_emit(buf, "%s\n", flag ? "true" : "false");		\
+out:									\
+	up(&hba->host_sem);						\
+	return ret;							\
 }									\
 static DEVICE_ATTR_RO(_name)
 
@@ -961,15 +1011,26 @@ static ssize_t _name##_show(struct device *dev,				\
 	u32 value;							\
 	int ret;							\
 	u8 index = 0;							\
+									\
+	down(&hba->host_sem);						\
+	if (!ufshcd_is_user_access_allowed(hba)) {			\
+		up(&hba->host_sem);					\
+		return -EBUSY;						\
+	}								\
 	if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname))			\
 		index = ufshcd_wb_get_query_index(hba);			\
 	pm_runtime_get_sync(hba->dev);					\
 	ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,	\
 		QUERY_ATTR_IDN##_uname, index, 0, &value);		\
 	pm_runtime_put_sync(hba->dev);					\
-	if (ret)							\
-		return -EINVAL;						\
-	return sysfs_emit(buf, "0x%08X\n", value);			\
+	if (ret) {							\
+		ret = -EINVAL;						\
+		goto out;						\
+	}								\
+	ret = sysfs_emit(buf, "0x%08X\n", value);			\
+out:									\
+	up(&hba->host_sem);						\
+	return ret;							\
 }									\
 static DEVICE_ATTR_RO(_name)
 
@@ -1112,13 +1173,26 @@ static ssize_t dyn_cap_needed_attribute_show(struct device *dev,
 	u8 lun = ufshcd_scsi_to_upiu_lun(sdev->lun);
 	int ret;
 
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
 	pm_runtime_get_sync(hba->dev);
 	ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
 		QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value);
 	pm_runtime_put_sync(hba->dev);
-	if (ret)
-		return -EINVAL;
-	return sysfs_emit(buf, "0x%08X\n", value);
+	if (ret) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = sysfs_emit(buf, "0x%08X\n", value);
+
+out:
+	up(&hba->host_sem);
+	return ret;
 }
 static DEVICE_ATTR_RO(dyn_cap_needed_attribute);
 
-- 
GitLab


From d7024c2790085d6a837d6d8f719a0c3e331b9026 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 18 Jan 2021 21:12:33 +0100
Subject: [PATCH 0695/4878] UPSTREAM: scsi: ufs: Delete redundant if statement
 in ufshcd_intr()

Once going into while-do loop, intr_status is already true, this
if-statement is redundant, remove it.

Link: https://lore.kernel.org/r/20210118201233.3043-1-huobean@gmail.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 60ec37555d05b023721a08005f5dbf716ab5394f)
Bug: 204438323
Change-Id: I78fe0abceea923544bb190223217a4d2fb75ac52
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d2ba59a199c9d..248a76a4a20cb 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6499,8 +6499,7 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
 	while (intr_status && retries--) {
 		enabled_intr_status =
 			intr_status & ufshcd_readl(hba, REG_INTERRUPT_ENABLE);
-		if (intr_status)
-			ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS);
+		ufshcd_writel(hba, intr_status, REG_INTERRUPT_STATUS);
 		if (enabled_intr_status)
 			retval |= ufshcd_sl_intr(hba, enabled_intr_status);
 
-- 
GitLab


From b59267e60b56c8e6f23a77c16018ab261640289b Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 19 Jan 2021 17:38:42 +0100
Subject: [PATCH 0696/4878] UPSTREAM: scsi: ufs: Add "wb_on" sysfs node to
 control WB on/off

Currently UFS WriteBooster driver uses clock scaling up/down to set WB
on/off. For the platforms which don't support UFSHCD_CAP_CLK_SCALING, WB
will be always on. Provide a sysfs attribute to enable/disable WB during
runtime. Write 1/0 to "wb_on" sysfs node to enable/disable UFS WB.

Link: https://lore.kernel.org/r/20210119163847.20165-2-huobean@gmail.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 8e834ca551add86fd549b0830f36ec2f26d08667)
Bug: 204438323
Change-Id: I2f57a56adddf94b7e7e5ddad926a8305668adf86
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c | 46 ++++++++++++++++++++++++++++++++++++
 drivers/scsi/ufs/ufshcd.c    |  3 +--
 drivers/scsi/ufs/ufshcd.h    |  2 ++
 3 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 8d2a9466bc130..2082135549c4e 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -211,6 +211,50 @@ out:
 	return ret ? ret : count;
 }
 
+static ssize_t wb_on_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%d\n", hba->wb_enabled);
+}
+
+static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+	unsigned int wb_enable;
+	ssize_t res;
+
+	if (!ufshcd_is_wb_allowed(hba) || ufshcd_is_clkscaling_supported(hba)) {
+		/*
+		 * If the platform supports UFSHCD_CAP_CLK_SCALING, turn WB
+		 * on/off will be done while clock scaling up/down.
+		 */
+		dev_warn(dev, "To control WB through wb_on is not allowed!\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (kstrtouint(buf, 0, &wb_enable))
+		return -EINVAL;
+
+	if (wb_enable != 0 && wb_enable != 1)
+		return -EINVAL;
+
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		res = -EBUSY;
+		goto out;
+	}
+
+	pm_runtime_get_sync(hba->dev);
+	res = ufshcd_wb_ctrl(hba, wb_enable);
+	pm_runtime_put_sync(hba->dev);
+out:
+	up(&hba->host_sem);
+	return res < 0 ? res : count;
+}
+
 static DEVICE_ATTR_RW(rpm_lvl);
 static DEVICE_ATTR_RO(rpm_target_dev_state);
 static DEVICE_ATTR_RO(rpm_target_link_state);
@@ -218,6 +262,7 @@ static DEVICE_ATTR_RW(spm_lvl);
 static DEVICE_ATTR_RO(spm_target_dev_state);
 static DEVICE_ATTR_RO(spm_target_link_state);
 static DEVICE_ATTR_RW(auto_hibern8);
+static DEVICE_ATTR_RW(wb_on);
 
 static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 	&dev_attr_rpm_lvl.attr,
@@ -227,6 +272,7 @@ static struct attribute *ufs_sysfs_ufshcd_attrs[] = {
 	&dev_attr_spm_target_dev_state.attr,
 	&dev_attr_spm_target_link_state.attr,
 	&dev_attr_auto_hibern8.attr,
+	&dev_attr_wb_on.attr,
 	NULL
 };
 
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 248a76a4a20cb..2705c5522960e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -249,7 +249,6 @@ static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
 static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag);
 static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba);
 static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba);
-static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable);
 static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set);
 static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
@@ -5616,7 +5615,7 @@ out:
 				__func__, err);
 }
 
-static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
+int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
 {
 	int ret;
 	u8 index;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 678b3d0801b54..afd80eecfa50b 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1210,6 +1210,8 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 			     u8 *desc_buff, int *buff_len,
 			     enum query_opcode desc_op);
 
+int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable);
+
 /* Wrapper functions for safely calling variant operations */
 static inline const char *ufshcd_get_var_name(struct ufs_hba *hba)
 {
-- 
GitLab


From 2e2448cd346838b497699db43e4a47fa94dfb1a4 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 19 Jan 2021 17:38:44 +0100
Subject: [PATCH 0697/4878] UPSTREAM: scsi: ufs: Update comment in the function
 ufshcd_wb_probe()

USFHCD supports both WriteBooster "LU dedicated buffer" mode and "shared
buffer" mode. Update the comment accordingly in the function
ufshcd_wb_probe().

Link: https://lore.kernel.org/r/20210119163847.20165-4-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ae1ce1fc61d4eae1cf00419a1be1a327099ba46c)
Bug: 204438323
Change-Id: Ie812740fca47d92cbf62b5888ab902a30cf9c61f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2705c5522960e..43f7bccd0bb3d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7431,10 +7431,9 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 		goto wb_disabled;
 
 	/*
-	 * WB may be supported but not configured while provisioning.
-	 * The spec says, in dedicated wb buffer mode,
-	 * a max of 1 lun would have wb buffer configured.
-	 * Now only shared buffer mode is supported.
+	 * WB may be supported but not configured while provisioning. The spec
+	 * says, in dedicated wb buffer mode, a max of 1 lun would have wb
+	 * buffer configured.
 	 */
 	dev_info->b_wb_buffer_type =
 		desc_buf[DEVICE_DESC_PARAM_WB_TYPE];
-- 
GitLab


From 40c9f64ccebf7107ccaf82ae9bfd96f65c81973a Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 19 Jan 2021 17:38:45 +0100
Subject: [PATCH 0698/4878] UPSTREAM: scsi: ufs: Remove two WB related fields
 from struct ufs_dev_info

d_wb_alloc_units and d_ext_ufs_feature_sup are only used during WB probe.
They are used to confirm the condition that "if bWriteBoosterBufferType
is set to 01h but dNumSharedWriteBoosterBufferAllocUnits is set to zero,
the WriteBooster feature is disabled", and if UFS device supports WB.

No need to keep them after probing is complete.

Link: https://lore.kernel.org/r/20210119163847.20165-5-huobean@gmail.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit e8d03813942072cff7bf596e8350f9b7fcde0e98)
Bug: 204438323
Change-Id: I0b48095db5d342b6bd57d8e3e27978d337292a48
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs.h    |  2 --
 drivers/scsi/ufs/ufshcd.c | 14 ++++++--------
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index d5e9fd45515ce..77fdaffe40d51 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -588,9 +588,7 @@ struct ufs_dev_info {
 	u8 *model;
 	u16 wspecversion;
 	u32 clk_gating_wait_us;
-	u32 d_ext_ufs_feature_sup;
 	u8 b_wb_buffer_type;
-	u32 d_wb_alloc_units;
 	bool b_rpm_dev_flush_capable;
 	u8 b_presrv_uspc_en;
 	/* UFS HPB related flag */
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 43f7bccd0bb3d..7befbf935196f 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7406,6 +7406,7 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 	struct ufs_dev_info *dev_info = &hba->dev_info;
 	u8 lun;
 	u32 d_lu_wb_buf_alloc;
+	u32 ext_ufs_feature;
 
 	if (!ufshcd_is_wb_allowed(hba))
 		return;
@@ -7423,11 +7424,10 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 	    DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP + 4)
 		goto wb_disabled;
 
-	dev_info->d_ext_ufs_feature_sup =
-		get_unaligned_be32(desc_buf +
-				   DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP);
+	ext_ufs_feature = get_unaligned_be32(desc_buf +
+					DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP);
 
-	if (!(dev_info->d_ext_ufs_feature_sup & UFS_DEV_WRITE_BOOSTER_SUP))
+	if (!(ext_ufs_feature & UFS_DEV_WRITE_BOOSTER_SUP))
 		goto wb_disabled;
 
 	/*
@@ -7442,10 +7442,8 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 		desc_buf[DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN];
 
 	if (dev_info->b_wb_buffer_type == WB_BUF_MODE_SHARED) {
-		dev_info->d_wb_alloc_units =
-		get_unaligned_be32(desc_buf +
-				   DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS);
-		if (!dev_info->d_wb_alloc_units)
+		if (!get_unaligned_be32(desc_buf +
+				   DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS))
 			goto wb_disabled;
 	} else {
 		for (lun = 0; lun < UFS_UPIU_MAX_WB_LUN_ID; lun++) {
-- 
GitLab


From 0b0e88f6c9ebf7427575485c941edd92d6bc6171 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 19 Jan 2021 17:38:46 +0100
Subject: [PATCH 0699/4878] UPSTREAM: scsi: ufs: Group UFS WB related flags in
 struct ufs_dev_info

UFS device-related flags should be grouped in ufs_dev_info. Move wb_enabled
and wb_buf_flush_enabled out from struct ufs_hba, group them in struct
ufs_dev_info, and align the names of the structure members vertically.

Link: https://lore.kernel.org/r/20210119163847.20165-6-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Acked-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 4cd48995645b456864564e168d539637b77d030e)
Bug: 204438323
Change-Id: Id1e22017c9cc6ebc7fc5e1436767afde3f8b1575
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c |  2 +-
 drivers/scsi/ufs/ufs.h       | 29 ++++++++++++++++++-----------
 drivers/scsi/ufs/ufshcd.c    | 21 ++++++++++-----------
 drivers/scsi/ufs/ufshcd.h    |  4 +---
 4 files changed, 30 insertions(+), 26 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 2082135549c4e..0abcc9c7f724c 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -216,7 +216,7 @@ static ssize_t wb_on_show(struct device *dev, struct device_attribute *attr,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return sysfs_emit(buf, "%d\n", hba->wb_enabled);
+	return sysfs_emit(buf, "%d\n", hba->dev_info.wb_enabled);
 }
 
 static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 77fdaffe40d51..0c09d731a790b 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -577,22 +577,29 @@ struct ufs_vreg_info {
 };
 
 struct ufs_dev_info {
-	bool f_power_on_wp_en;
+	bool	f_power_on_wp_en;
 	/* Keeps information if any of the LU is power on write protected */
-	bool is_lu_power_on_wp;
+	bool	is_lu_power_on_wp;
 	/* Maximum number of general LU supported by the UFS device */
-	u8 max_lu_supported;
-	u8 wb_dedicated_lu;
-	u16 wmanufacturerid;
+	u8	max_lu_supported;
+	u16	wmanufacturerid;
 	/*UFS device Product Name */
-	u8 *model;
-	u16 wspecversion;
-	u32 clk_gating_wait_us;
-	u8 b_wb_buffer_type;
-	bool b_rpm_dev_flush_capable;
-	u8 b_presrv_uspc_en;
+	u8	*model;
+	u16	wspecversion;
+	u32	clk_gating_wait_us;
+
 	/* UFS HPB related flag */
 	bool	hpb_enabled;
+
+	/* UFS WB related flags */
+	bool    wb_enabled;
+	bool    wb_buf_flush_enabled;
+	u8	wb_dedicated_lu;
+	u8      wb_buffer_type;
+
+	bool	b_rpm_dev_flush_capable;
+	u8	b_presrv_uspc_en;
+
 	ANDROID_KABI_RESERVE(1);
 };
 
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 7befbf935196f..b50fcdba8a175 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -621,8 +621,8 @@ static void ufshcd_device_reset(struct ufs_hba *hba)
 	if (!err) {
 		ufshcd_set_ufs_dev_active(hba);
 		if (ufshcd_is_wb_allowed(hba)) {
-			hba->wb_enabled = false;
-			hba->wb_buf_flush_enabled = false;
+			hba->dev_info.wb_enabled = false;
+			hba->dev_info.wb_buf_flush_enabled = false;
 		}
 	}
 	if (err != -EOPNOTSUPP)
@@ -5624,7 +5624,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
 	if (!ufshcd_is_wb_allowed(hba))
 		return 0;
 
-	if (!(enable ^ hba->wb_enabled))
+	if (!(enable ^ hba->dev_info.wb_enabled))
 		return 0;
 	if (enable)
 		opcode = UPIU_QUERY_OPCODE_SET_FLAG;
@@ -5640,7 +5640,7 @@ int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
 		return ret;
 	}
 
-	hba->wb_enabled = enable;
+	hba->dev_info.wb_enabled = enable;
 	dev_dbg(hba->dev, "%s write booster %s %d\n",
 			__func__, enable ? "enable" : "disable", ret);
 
@@ -5677,7 +5677,7 @@ static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
 	int ret;
 	u8 index;
 
-	if (!ufshcd_is_wb_allowed(hba) || hba->wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) || hba->dev_info.wb_buf_flush_enabled)
 		return 0;
 
 	index = ufshcd_wb_get_query_index(hba);
@@ -5688,7 +5688,7 @@ static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
 		dev_err(hba->dev, "%s WB - buf flush enable failed %d\n",
 			__func__, ret);
 	else
-		hba->wb_buf_flush_enabled = true;
+		hba->dev_info.wb_buf_flush_enabled = true;
 
 	dev_dbg(hba->dev, "WB - Flush enabled: %d\n", ret);
 	return ret;
@@ -5699,7 +5699,7 @@ static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
 	int ret;
 	u8 index;
 
-	if (!ufshcd_is_wb_allowed(hba) || !hba->wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) || !hba->dev_info.wb_buf_flush_enabled)
 		return 0;
 
 	index = ufshcd_wb_get_query_index(hba);
@@ -5710,7 +5710,7 @@ static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
 		dev_warn(hba->dev, "%s: WB - buf flush disable failed %d\n",
 			 __func__, ret);
 	} else {
-		hba->wb_buf_flush_enabled = false;
+		hba->dev_info.wb_buf_flush_enabled = false;
 		dev_dbg(hba->dev, "WB - Flush disabled: %d\n", ret);
 	}
 
@@ -7435,13 +7435,12 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 	 * says, in dedicated wb buffer mode, a max of 1 lun would have wb
 	 * buffer configured.
 	 */
-	dev_info->b_wb_buffer_type =
-		desc_buf[DEVICE_DESC_PARAM_WB_TYPE];
+	dev_info->wb_buffer_type = desc_buf[DEVICE_DESC_PARAM_WB_TYPE];
 
 	dev_info->b_presrv_uspc_en =
 		desc_buf[DEVICE_DESC_PARAM_WB_PRESRV_USRSPC_EN];
 
-	if (dev_info->b_wb_buffer_type == WB_BUF_MODE_SHARED) {
+	if (dev_info->wb_buffer_type == WB_BUF_MODE_SHARED) {
 		if (!get_unaligned_be32(desc_buf +
 				   DEVICE_DESC_PARAM_WB_SHARED_ALLOC_UNITS))
 			goto wb_disabled;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index afd80eecfa50b..33958e3cc5bd0 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -920,8 +920,6 @@ struct ufs_hba {
 
 	struct device		bsg_dev;
 	struct request_queue	*bsg_queue;
-	bool wb_buf_flush_enabled;
-	bool wb_enabled;
 	struct delayed_work rpm_dev_flush_recheck_work;
 
 #ifdef CONFIG_SCSI_UFS_HPB
@@ -1082,7 +1080,7 @@ static inline bool ufshcd_keep_autobkops_enabled_except_suspend(
 
 static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 {
-	if (hba->dev_info.b_wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
+	if (hba->dev_info.wb_buffer_type == WB_BUF_MODE_LU_DEDICATED)
 		return hba->dev_info.wb_dedicated_lu;
 	return 0;
 }
-- 
GitLab


From 0d81d06069c7e2741b88a391cce8f169dcda75ea Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 13 Jan 2021 10:04:48 +0100
Subject: [PATCH 0700/4878] UPSTREAM: scsi: ufs: ufshcd: Do not set
 COMMAND_COMPLETE

COMMAND_COMPLETE is defined as '0', so setting it is quite pointless.

Link: https://lore.kernel.org/r/20210113090500.129644-24-hare@suse.de
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit db83d8a5c862ea59a042f674e6acbbb97dca36ec)
Bug: 204438323
Change-Id: I9eb11ac47769a031e7cd038165408db2fac30f7f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b50fcdba8a175..395e3a12c47d9 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5052,9 +5052,7 @@ ufshcd_scsi_cmd_status(struct ufshcd_lrb *lrbp, int scsi_status)
 		ufshcd_copy_sense_data(lrbp);
 		fallthrough;
 	case SAM_STAT_GOOD:
-		result |= DID_OK << 16 |
-			  COMMAND_COMPLETE << 8 |
-			  scsi_status;
+		result |= DID_OK << 16 | scsi_status;
 		break;
 	case SAM_STAT_TASK_SET_FULL:
 	case SAM_STAT_BUSY:
-- 
GitLab


From 71121c3c3360a539939b33526a493eab06866ebd Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Thu, 21 Jan 2021 19:57:36 +0100
Subject: [PATCH 0701/4878] UPSTREAM: scsi: ufs: Cleanup WB buffer flush toggle
 implementation

Delete ufshcd_wb_buf_flush_enable() and ufshcd_wb_buf_flush_disable(). Move
the implementation into ufshcd_wb_toggle_flush().

Link: https://lore.kernel.org/r/20210121185736.12471-1-huobean@gmail.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit d3ba622db82b37882cf416e52d574833d3b49372)
Bug: 204438323
Change-Id: I1e57d9c6d6c38646d9da01da5ebb244f132d73f0
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 63 +++++++++++++--------------------------
 1 file changed, 20 insertions(+), 43 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 395e3a12c47d9..5586137bd38e7 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -247,10 +247,8 @@ static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on);
 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
 					 struct ufs_vreg *vreg);
 static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag);
-static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba);
-static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba);
 static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set);
-static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
+static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba);
 
@@ -5661,58 +5659,37 @@ static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
 				index, NULL);
 }
 
-static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable)
-{
-	if (enable)
-		ufshcd_wb_buf_flush_enable(hba);
-	else
-		ufshcd_wb_buf_flush_disable(hba);
-
-}
-
-static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba)
+static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable)
 {
 	int ret;
 	u8 index;
+	enum query_opcode opcode;
 
-	if (!ufshcd_is_wb_allowed(hba) || hba->dev_info.wb_buf_flush_enabled)
+	if (!ufshcd_is_wb_allowed(hba) ||
+	    hba->dev_info.wb_buf_flush_enabled == enable)
 		return 0;
 
-	index = ufshcd_wb_get_query_index(hba);
-	ret = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG,
-				      QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN,
-				      index, NULL);
-	if (ret)
-		dev_err(hba->dev, "%s WB - buf flush enable failed %d\n",
-			__func__, ret);
+	if (enable)
+		opcode = UPIU_QUERY_OPCODE_SET_FLAG;
 	else
-		hba->dev_info.wb_buf_flush_enabled = true;
-
-	dev_dbg(hba->dev, "WB - Flush enabled: %d\n", ret);
-	return ret;
-}
-
-static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba)
-{
-	int ret;
-	u8 index;
-
-	if (!ufshcd_is_wb_allowed(hba) || !hba->dev_info.wb_buf_flush_enabled)
-		return 0;
+		opcode = UPIU_QUERY_OPCODE_CLEAR_FLAG;
 
 	index = ufshcd_wb_get_query_index(hba);
-	ret = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_CLEAR_FLAG,
+	ret = ufshcd_query_flag_retry(hba, opcode,
 				      QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN,
 				      index, NULL);
-	if (ret) {
-		dev_warn(hba->dev, "%s: WB - buf flush disable failed %d\n",
-			 __func__, ret);
-	} else {
-		hba->dev_info.wb_buf_flush_enabled = false;
-		dev_dbg(hba->dev, "WB - Flush disabled: %d\n", ret);
-	}
+ 	if (ret) {
+		dev_err(hba->dev, "%s WB-Buf Flush %s failed %d\n", __func__,
+			enable ? "enable" : "disable", ret);
+		goto out;
+ 	}
+ 
+	hba->dev_info.wb_buf_flush_enabled = enable;
+
+	dev_dbg(hba->dev, "WB-Buf Flush %s\n", enable ? "enabled" : "disabled");
+out:
+ 	return ret;
 
-	return ret;
 }
 
 static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
-- 
GitLab


From 6636ec454abb89c940d25d3758420a78faa5ccaf Mon Sep 17 00:00:00 2001
From: DooHyun Hwang <dh0421.hwang@samsung.com>
Date: Wed, 3 Feb 2021 19:14:43 +0900
Subject: [PATCH 0702/4878] UPSTREAM: scsi: ufs: Print the counter of each
 event history

Print event counter after dumping the event history.

Link: https://lore.kernel.org/r/20210203101443.28934-1-dh0421.hwang@samsung.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: DooHyun Hwang <dh0421.hwang@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit bafd09f8d8ec0ab33c57bb919f95436175814ee5)
Bug: 204438323
Change-Id: Ic03a2b5e9d7a0417faca2193089d1cab4d441f6e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 5586137bd38e7..5906806231951 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -465,6 +465,8 @@ static void ufshcd_print_evt(struct ufs_hba *hba, u32 id,
 
 	if (!found)
 		dev_err(hba->dev, "No record of %s\n", err_name);
+	else
+		dev_err(hba->dev, "%s: total cnt=%llu\n", err_name, e->cnt);
 }
 
 static void ufshcd_print_evt_hist(struct ufs_hba *hba)
@@ -1885,7 +1887,7 @@ static ssize_t ufshcd_clkgate_delay_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%lu\n", hba->clk_gating.delay_ms);
+	return sysfs_emit(buf, "%lu\n", hba->clk_gating.delay_ms);
 }
 
 static ssize_t ufshcd_clkgate_delay_store(struct device *dev,
@@ -1908,7 +1910,7 @@ static ssize_t ufshcd_clkgate_enable_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", hba->clk_gating.is_enabled);
+	return sysfs_emit(buf, "%d\n", hba->clk_gating.is_enabled);
 }
 
 static ssize_t ufshcd_clkgate_enable_store(struct device *dev,
-- 
GitLab


From 37ce54fa1fa821ed67f855d4da9f2c3afb8b9ce1 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 9 Feb 2021 08:24:34 +0200
Subject: [PATCH 0703/4878] UPSTREAM: scsi: ufs: Add exception event tracepoint

Currently, exception event status can be read from wExceptionEventStatus
attribute (sysfs file attributes/exception_event_status under the UFS host
controller device directory). Polling that attribute to track UFS exception
events is impractical, so add a tracepoint to track exception events for
testing and debugging purposes.

Note, by the time the exception event status is read, the exception event
may have cleared, so the value can be zero - see example below.

Note also, only enabled exception events can be reported. A subsequent
patch adds the ability for users to enable selected exception events via
debugfs.

Example with driver instrumented to enable all exception events:

  # echo 1 > /sys/kernel/debug/tracing/events/ufs/ufshcd_exception_event/enable

  ... do some I/O ...

  # cat /sys/kernel/debug/tracing/trace
  # tracer: nop
  #
  # entries-in-buffer/entries-written: 3/3   #P:5
  #
  #                                _-----=> irqs-off
  #                               / _----=> need-resched
  #                              | / _---=> hardirq/softirq
  #                              || / _--=> preempt-depth
  #                              ||| /     delay
  #           TASK-PID     CPU#  ||||   TIMESTAMP  FUNCTION
  #              | |         |   ||||      |         |
       kworker/2:2-173     [002] ....   731.486419: ufshcd_exception_event: 0000:00:12.5: status 0x0
       kworker/2:2-173     [002] ....   732.608918: ufshcd_exception_event: 0000:00:12.5: status 0x4
       kworker/2:2-173     [002] ....   732.609312: ufshcd_exception_event: 0000:00:12.5: status 0x4

Link: https://lore.kernel.org/r/20210209062437.6954-2-adrian.hunter@intel.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit f7733625ec2f7bd628e4fd5014f72a2983830a74)
Bug: 204438323
Change-Id: Iebc00a8d240713a2e58753c5f11382159172864b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c  |  2 ++
 include/trace/events/ufs.h | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 5906806231951..bdee3b49d8722 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5799,6 +5799,8 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 		goto out;
 	}
 
+	trace_ufshcd_exception_event(dev_name(hba->dev), status);
+
 	status &= hba->ee_ctrl_mask;
 
 	if (status & MASK_EE_URGENT_BKOPS)
diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index e151477d645c1..1cb6f1afba0ea 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -349,6 +349,27 @@ TRACE_EVENT(ufshcd_upiu,
 	)
 );
 
+TRACE_EVENT(ufshcd_exception_event,
+
+	TP_PROTO(const char *dev_name, u16 status),
+
+	TP_ARGS(dev_name, status),
+
+	TP_STRUCT__entry(
+		__string(dev_name, dev_name)
+		__field(u16, status)
+	),
+
+	TP_fast_assign(
+		__assign_str(dev_name, dev_name);
+		__entry->status = status;
+	),
+
+	TP_printk("%s: status 0x%x",
+		__get_str(dev_name), __entry->status
+	)
+);
+
 #endif /* if !defined(_TRACE_UFS_H) || defined(TRACE_HEADER_MULTI_READ) */
 
 /* This part must be outside protection */
-- 
GitLab


From 2f645969bf04511a4f1f27cbb854180f50a31032 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 9 Feb 2021 08:24:35 +0200
Subject: [PATCH 0704/4878] UPSTREAM: scsi: ufs: Add exception event
 definitions

For readability and completeness, add exception event definitions.

Link: https://lore.kernel.org/r/20210209062437.6954-3-adrian.hunter@intel.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 37b97b18704f77f711e7a2c532fcad00268ac025)
Bug: 204438323
Change-Id: I40e434a0c25a8953c140d0d933dc97739404ffa4
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index 0c09d731a790b..f56150d06a0ab 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -362,8 +362,14 @@ enum power_desc_param_offset {
 
 /* Exception event mask values */
 enum {
-	MASK_EE_STATUS		= 0xFFFF,
-	MASK_EE_URGENT_BKOPS	= (1 << 2),
+	MASK_EE_STATUS			= 0xFFFF,
+	MASK_EE_DYNCAP_EVENT		= BIT(0),
+	MASK_EE_SYSPOOL_EVENT		= BIT(1),
+	MASK_EE_URGENT_BKOPS		= BIT(2),
+	MASK_EE_TOO_HIGH_TEMP		= BIT(3),
+	MASK_EE_TOO_LOW_TEMP		= BIT(4),
+	MASK_EE_WRITEBOOSTER_EVENT	= BIT(5),
+	MASK_EE_PERFORMANCE_THROTTLING	= BIT(6),
 };
 
 /* Background operation status */
-- 
GitLab


From 6c3a0cbbe84530fbb3d71933239ee34635a4e5d2 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 9 Feb 2021 08:24:36 +0200
Subject: [PATCH 0705/4878] UPSTREAM: scsi: ufs: ufs-debugfs: Add user-defined
 exception_event_mask

Allow users to enable specific exception events via debugfs.

The bits enabled by the driver ee_drv_ctrl are separated from the bits
enabled by the user ee_usr_ctrl. The control mask ee_mask_ctrl is the
logical-or of those two. A mutex is needed to ensure that the masks match
what was written to the device.

Link: https://lore.kernel.org/r/20210209062437.6954-4-adrian.hunter@intel.com
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit cd4694756188dcca0f631e60da26053be1ffdc91)
Bug: 204438323
Change-Id: I80ae782813983c9637d09625b4e9501e854f1090
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-debugfs.c | 46 ++++++++++++++++++
 drivers/scsi/ufs/ufshcd.c      | 86 +++++++++++++++++++++-------------
 drivers/scsi/ufs/ufshcd.h      | 23 ++++++++-
 3 files changed, 121 insertions(+), 34 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-debugfs.c b/drivers/scsi/ufs/ufs-debugfs.c
index dee98dc72d29e..59729073b5696 100644
--- a/drivers/scsi/ufs/ufs-debugfs.c
+++ b/drivers/scsi/ufs/ufs-debugfs.c
@@ -44,10 +44,56 @@ static int ufs_debugfs_stats_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(ufs_debugfs_stats);
 
+static int ee_usr_mask_get(void *data, u64 *val)
+{
+	struct ufs_hba *hba = data;
+
+	*val = hba->ee_usr_mask;
+	return 0;
+}
+
+static int ufs_debugfs_get_user_access(struct ufs_hba *hba)
+__acquires(&hba->host_sem)
+{
+	down(&hba->host_sem);
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		up(&hba->host_sem);
+		return -EBUSY;
+	}
+	pm_runtime_get_sync(hba->dev);
+	return 0;
+}
+
+static void ufs_debugfs_put_user_access(struct ufs_hba *hba)
+__releases(&hba->host_sem)
+{
+	pm_runtime_put_sync(hba->dev);
+	up(&hba->host_sem);
+}
+
+static int ee_usr_mask_set(void *data, u64 val)
+{
+	struct ufs_hba *hba = data;
+	int err;
+
+	if (val & ~(u64)MASK_EE_STATUS)
+		return -EINVAL;
+	err = ufs_debugfs_get_user_access(hba);
+	if (err)
+		return err;
+	err = ufshcd_update_ee_usr_mask(hba, val, MASK_EE_STATUS);
+	ufs_debugfs_put_user_access(hba);
+	return err;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(ee_usr_mask_fops, ee_usr_mask_get, ee_usr_mask_set, "%#llx\n");
+
 void ufs_debugfs_hba_init(struct ufs_hba *hba)
 {
 	hba->debugfs_root = debugfs_create_dir(dev_name(hba->dev), ufs_debugfs_root);
 	debugfs_create_file("stats", 0400, hba->debugfs_root, hba, &ufs_debugfs_stats_fops);
+	debugfs_create_file("exception_event_mask", 0600, hba->debugfs_root,
+			    hba, &ee_usr_mask_fops);
 }
 
 void ufs_debugfs_hba_exit(struct ufs_hba *hba)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index bdee3b49d8722..ab8401b52e811 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5342,6 +5342,46 @@ static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
 	}
 }
 
+static int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask)
+{
+	return ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR,
+				       QUERY_ATTR_IDN_EE_CONTROL, 0, 0,
+				       &ee_ctrl_mask);
+}
+
+static int ufshcd_write_ee_control(struct ufs_hba *hba)
+{
+	int err;
+
+	mutex_lock(&hba->ee_ctrl_mutex);
+	err = __ufshcd_write_ee_control(hba, hba->ee_ctrl_mask);
+	mutex_unlock(&hba->ee_ctrl_mutex);
+	if (err)
+		dev_err(hba->dev, "%s: failed to write ee control %d\n",
+			__func__, err);
+	return err;
+}
+
+int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, u16 *other_mask,
+			     u16 set, u16 clr)
+{
+	u16 new_mask, ee_ctrl_mask;
+	int err = 0;
+
+	mutex_lock(&hba->ee_ctrl_mutex);
+	new_mask = (*mask & ~clr) | set;
+	ee_ctrl_mask = new_mask | *other_mask;
+	if (ee_ctrl_mask != hba->ee_ctrl_mask)
+		err = __ufshcd_write_ee_control(hba, ee_ctrl_mask);
+	/* Still need to update 'mask' even if 'ee_ctrl_mask' was unchanged */
+	if (!err) {
+		hba->ee_ctrl_mask = ee_ctrl_mask;
+		*mask = new_mask;
+	}
+	mutex_unlock(&hba->ee_ctrl_mutex);
+	return err;
+}
+
 /**
  * ufshcd_disable_ee - disable exception event
  * @hba: per-adapter instance
@@ -5352,22 +5392,9 @@ static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
  *
  * Returns zero on success, non-zero error value on failure.
  */
-static int ufshcd_disable_ee(struct ufs_hba *hba, u16 mask)
+static inline int ufshcd_disable_ee(struct ufs_hba *hba, u16 mask)
 {
-	int err = 0;
-	u32 val;
-
-	if (!(hba->ee_ctrl_mask & mask))
-		goto out;
-
-	val = hba->ee_ctrl_mask & ~mask;
-	val &= MASK_EE_STATUS;
-	err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR,
-			QUERY_ATTR_IDN_EE_CONTROL, 0, 0, &val);
-	if (!err)
-		hba->ee_ctrl_mask &= ~mask;
-out:
-	return err;
+	return ufshcd_update_ee_drv_mask(hba, 0, mask);
 }
 
 /**
@@ -5380,22 +5407,9 @@ out:
  *
  * Returns zero on success, non-zero error value on failure.
  */
-static int ufshcd_enable_ee(struct ufs_hba *hba, u16 mask)
+static inline int ufshcd_enable_ee(struct ufs_hba *hba, u16 mask)
 {
-	int err = 0;
-	u32 val;
-
-	if (hba->ee_ctrl_mask & mask)
-		goto out;
-
-	val = hba->ee_ctrl_mask | mask;
-	val &= MASK_EE_STATUS;
-	err = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR,
-			QUERY_ATTR_IDN_EE_CONTROL, 0, 0, &val);
-	if (!err)
-		hba->ee_ctrl_mask |= mask;
-out:
-	return err;
+	return ufshcd_update_ee_drv_mask(hba, mask, 0);
 }
 
 /**
@@ -5801,9 +5815,7 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 
 	trace_ufshcd_exception_event(dev_name(hba->dev), status);
 
-	status &= hba->ee_ctrl_mask;
-
-	if (status & MASK_EE_URGENT_BKOPS)
+	if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS)
 		ufshcd_bkops_exception_event_handler(hba);
 
 out:
@@ -7986,6 +7998,8 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
 	ufshcd_set_active_icc_lvl(hba);
 
 	ufshcd_wb_config(hba);
+	if (hba->ee_usr_mask)
+		ufshcd_write_ee_control(hba);
 	/* Enable Auto-Hibernate if configured */
 	ufshcd_auto_hibern8_enable(hba);
 
@@ -8968,6 +8982,9 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		 */
 		ufshcd_urgent_bkops(hba);
 
+	if (hba->ee_usr_mask)
+		ufshcd_write_ee_control(hba);
+
 	hba->clk_gating.is_suspended = false;
 
 	if (ufshcd_is_clkscaling_supported(hba))
@@ -9388,6 +9405,9 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Initialize mutex for device management commands */
 	mutex_init(&hba->dev_cmd.lock);
 
+	/* Initialize mutex for exception event control */
+	mutex_init(&hba->ee_ctrl_mutex);
+
 	init_rwsem(&hba->clk_scaling_lock);
 
 	ufshcd_init_clk_gating(hba);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 33958e3cc5bd0..9b123dabad429 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -865,7 +865,10 @@ struct ufs_hba {
 	u32 ufshcd_state;
 	u32 eh_flags;
 	u32 intr_mask;
-	u16 ee_ctrl_mask;
+	u16 ee_ctrl_mask; /* Exception event mask */
+	u16 ee_drv_mask;  /* Exception event mask for driver */
+	u16 ee_usr_mask;  /* Exception event mask for user (via debugfs) */
+	struct mutex ee_ctrl_mutex;
 	bool is_powered;
 	bool shutting_down;
 	struct semaphore host_sem;
@@ -1403,4 +1406,22 @@ static inline u8 ufshcd_scsi_to_upiu_lun(unsigned int scsi_lun)
 
 int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
 		     const char *prefix);
+
+int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, u16 *other_mask,
+			     u16 set, u16 clr);
+
+static inline int ufshcd_update_ee_drv_mask(struct ufs_hba *hba,
+					    u16 set, u16 clr)
+{
+	return ufshcd_update_ee_control(hba, &hba->ee_drv_mask,
+					&hba->ee_usr_mask, set, clr);
+}
+
+static inline int ufshcd_update_ee_usr_mask(struct ufs_hba *hba,
+					    u16 set, u16 clr)
+{
+	return ufshcd_update_ee_control(hba, &hba->ee_usr_mask,
+					&hba->ee_drv_mask, set, clr);
+}
+
 #endif /* End of Header */
-- 
GitLab


From e72bc94cd6598d54a5ce3fbb93b52d2e0e9d771f Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 9 Feb 2021 08:24:37 +0200
Subject: [PATCH 0706/4878] UPSTREAM: scsi: ufs: ufs-debugfs: Add user-defined
 exception event rate limiting

An enabled user-specified exception event that does not clear quickly will
repeatedly cause the handler to run. That could unduly disturb the driver
behaviour being tested or debugged. To prevent that add debugfs file
exception_event_rate_limit_ms. When a exception event happens, it is
disabled, and then after a period of time (default 20ms) the exception
event is enabled again.

Note that if the driver also has that exception event enabled, it will not
be disabled.

Link: https://lore.kernel.org/r/20210209062437.6954-5-adrian.hunter@intel.com
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 7deedfdaeccfec5a9c41dbb83f1725cf11e3ff39)
Bug: 204438323
Change-Id: Ib660a69b6057d7d3b2b251671d3ff3b9f8d22ca4
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-debugfs.c | 44 ++++++++++++++++++++++++++++++++++
 drivers/scsi/ufs/ufs-debugfs.h |  2 ++
 drivers/scsi/ufs/ufshcd.c      |  5 ++--
 drivers/scsi/ufs/ufshcd.h      |  4 ++++
 4 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-debugfs.c b/drivers/scsi/ufs/ufs-debugfs.c
index 59729073b5696..ced9ef4d7c782 100644
--- a/drivers/scsi/ufs/ufs-debugfs.c
+++ b/drivers/scsi/ufs/ufs-debugfs.c
@@ -88,15 +88,59 @@ static int ee_usr_mask_set(void *data, u64 val)
 
 DEFINE_DEBUGFS_ATTRIBUTE(ee_usr_mask_fops, ee_usr_mask_get, ee_usr_mask_set, "%#llx\n");
 
+void ufs_debugfs_exception_event(struct ufs_hba *hba, u16 status)
+{
+	bool chgd = false;
+	u16 ee_ctrl_mask;
+	int err = 0;
+
+	if (!hba->debugfs_ee_rate_limit_ms || !status)
+		return;
+
+	mutex_lock(&hba->ee_ctrl_mutex);
+	ee_ctrl_mask = hba->ee_drv_mask | (hba->ee_usr_mask & ~status);
+	chgd = ee_ctrl_mask != hba->ee_ctrl_mask;
+	if (chgd) {
+		err = __ufshcd_write_ee_control(hba, ee_ctrl_mask);
+		if (err)
+			dev_err(hba->dev, "%s: failed to write ee control %d\n",
+				__func__, err);
+	}
+	mutex_unlock(&hba->ee_ctrl_mutex);
+
+	if (chgd && !err) {
+		unsigned long delay = msecs_to_jiffies(hba->debugfs_ee_rate_limit_ms);
+
+		queue_delayed_work(system_freezable_wq, &hba->debugfs_ee_work, delay);
+	}
+}
+
+static void ufs_debugfs_restart_ee(struct work_struct *work)
+{
+	struct ufs_hba *hba = container_of(work, struct ufs_hba, debugfs_ee_work.work);
+
+	if (!hba->ee_usr_mask || pm_runtime_suspended(hba->dev) ||
+	    ufs_debugfs_get_user_access(hba))
+		return;
+	ufshcd_write_ee_control(hba);
+	ufs_debugfs_put_user_access(hba);
+}
+
 void ufs_debugfs_hba_init(struct ufs_hba *hba)
 {
+	/* Set default exception event rate limit period to 20ms */
+	hba->debugfs_ee_rate_limit_ms = 20;
+	INIT_DELAYED_WORK(&hba->debugfs_ee_work, ufs_debugfs_restart_ee);
 	hba->debugfs_root = debugfs_create_dir(dev_name(hba->dev), ufs_debugfs_root);
 	debugfs_create_file("stats", 0400, hba->debugfs_root, hba, &ufs_debugfs_stats_fops);
 	debugfs_create_file("exception_event_mask", 0600, hba->debugfs_root,
 			    hba, &ee_usr_mask_fops);
+	debugfs_create_u32("exception_event_rate_limit_ms", 0600, hba->debugfs_root,
+			   &hba->debugfs_ee_rate_limit_ms);
 }
 
 void ufs_debugfs_hba_exit(struct ufs_hba *hba)
 {
 	debugfs_remove_recursive(hba->debugfs_root);
+	cancel_delayed_work_sync(&hba->debugfs_ee_work);
 }
diff --git a/drivers/scsi/ufs/ufs-debugfs.h b/drivers/scsi/ufs/ufs-debugfs.h
index f35b39c4b4f50..3ca29d30460ab 100644
--- a/drivers/scsi/ufs/ufs-debugfs.h
+++ b/drivers/scsi/ufs/ufs-debugfs.h
@@ -12,11 +12,13 @@ void __init ufs_debugfs_init(void);
 void __exit ufs_debugfs_exit(void);
 void ufs_debugfs_hba_init(struct ufs_hba *hba);
 void ufs_debugfs_hba_exit(struct ufs_hba *hba);
+void ufs_debugfs_exception_event(struct ufs_hba *hba, u16 status);
 #else
 static inline void ufs_debugfs_init(void) {}
 static inline void ufs_debugfs_exit(void) {}
 static inline void ufs_debugfs_hba_init(struct ufs_hba *hba) {}
 static inline void ufs_debugfs_hba_exit(struct ufs_hba *hba) {}
+static inline void ufs_debugfs_exception_event(struct ufs_hba *hba, u16 status) {}
 #endif
 
 #endif
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ab8401b52e811..d78c1c4448b51 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5342,14 +5342,14 @@ static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
 	}
 }
 
-static int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask)
+int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask)
 {
 	return ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_WRITE_ATTR,
 				       QUERY_ATTR_IDN_EE_CONTROL, 0, 0,
 				       &ee_ctrl_mask);
 }
 
-static int ufshcd_write_ee_control(struct ufs_hba *hba)
+int ufshcd_write_ee_control(struct ufs_hba *hba)
 {
 	int err;
 
@@ -5818,6 +5818,7 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 	if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS)
 		ufshcd_bkops_exception_event_handler(hba);
 
+	ufs_debugfs_exception_event(hba, status);
 out:
 	ufshcd_scsi_unblock_requests(hba);
 	/*
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 9b123dabad429..71b5162171cca 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -939,6 +939,8 @@ struct ufs_hba {
 #endif
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *debugfs_root;
+	struct delayed_work debugfs_ee_work;
+	u32 debugfs_ee_rate_limit_ms;
 #endif
 
 	ANDROID_KABI_RESERVE(1);
@@ -1407,6 +1409,8 @@ static inline u8 ufshcd_scsi_to_upiu_lun(unsigned int scsi_lun)
 int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
 		     const char *prefix);
 
+int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask);
+int ufshcd_write_ee_control(struct ufs_hba *hba);
 int ufshcd_update_ee_control(struct ufs_hba *hba, u16 *mask, u16 *other_mask,
 			     u16 set, u16 clr);
 
-- 
GitLab


From b7f59defef147e255e5ae90374e582d01a89f172 Mon Sep 17 00:00:00 2001
From: Zhang Yunkai <zhang.yunkai@zte.com.cn>
Date: Sat, 6 Mar 2021 03:47:06 -0800
Subject: [PATCH 0707/4878] UPSTREAM: scsi: ufs: Remove duplicate include in
 ufshcd

'blkdev.h' included in 'ufshcd.c' is included twice.

Link: https://lore.kernel.org/r/20210306114706.217873-1-zhang.yunkai@zte.com.cn
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Zhang Yunkai <zhang.yunkai@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit b4388e3db56a371c5a8ef8116358028a66278297)
Bug: 204438323
Change-Id: I61acb6b17e2954f10b994b908616de5d8b08cce6
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d78c1c4448b51..d21d1e4a37a8d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -25,7 +25,6 @@
 #include "ufshcd-crypto.h"
 #include "ufshpb.h"
 #include <asm/unaligned.h>
-#include <linux/blkdev.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/ufs.h>
-- 
GitLab


From 4a7320e8d449aea46827fc2c970905d9f0f25913 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 12 Mar 2021 09:47:10 +0000
Subject: [PATCH 0708/4878] UPSTREAM: scsi: ufs: core: Fix incorrectly named
 ufshcd_find_max_sup_active_icc_level()

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/ufs/ufshcd.c:7142: warning: expecting prototype for ufshcd_calc_icc_level(). Prototype was for ufshcd_find_max_sup_active_icc_level() instead

Link: https://lore.kernel.org/r/20210312094738.2207817-3-lee.jones@linaro.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Santosh Yaraganavi <santosh.sy@samsung.com>
Cc: Vinayak Holikatti <h.vinayak@samsung.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 11eea9b3fd4d424fcfc1acbb4ae5c25c21fb6edb)
Bug: 204438323
Change-Id: Id9edfe08033c720d8563d8bd609db140adfc2f2f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d21d1e4a37a8d..4db0eccbd9c9d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7252,7 +7252,7 @@ static u32 ufshcd_get_max_icc_level(int sup_curr_uA, u32 start_scan, char *buff)
 }
 
 /**
- * ufshcd_calc_icc_level - calculate the max ICC level
+ * ufshcd_find_max_sup_active_icc_level - calculate the max ICC level
  * In case regulators are not initialized we'll return 0
  * @hba: per-adapter instance
  * @desc_buf: power descriptor buffer to extract ICC levels from.
-- 
GitLab


From bbd9c21e75331d1ab6337a784903b47d69411dd9 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 12 Mar 2021 09:47:24 +0000
Subject: [PATCH 0709/4878] UPSTREAM: scsi: ufs: cdns-pltfrm: Supply function
 names for headers

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/ufs/cdns-pltfrm.c:109: warning: expecting prototype for Sets HCLKDIV register value based on the core_clk(). Prototype was for cdns_ufs_set_hclkdiv() instead
 drivers/scsi/ufs/cdns-pltfrm.c:144: warning: wrong kernel-doc identifier on line:
 drivers/scsi/ufs/cdns-pltfrm.c:160: warning: wrong kernel-doc identifier on line:
 drivers/scsi/ufs/cdns-pltfrm.c:176: warning: wrong kernel-doc identifier on line:

Link: https://lore.kernel.org/r/20210312094738.2207817-17-lee.jones@linaro.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Jan Kotas <jank@cadence.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit d5db88b0ce89075e7a107ca90ced22508f1d42a9)
Bug: 204438323
Change-Id: Iea2db9184a44d98dd87a5bec2f777683f570782c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/cdns-pltfrm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/ufs/cdns-pltfrm.c b/drivers/scsi/ufs/cdns-pltfrm.c
index 149391faa19c1..13d92043e13b0 100644
--- a/drivers/scsi/ufs/cdns-pltfrm.c
+++ b/drivers/scsi/ufs/cdns-pltfrm.c
@@ -100,6 +100,7 @@ static void cdns_ufs_set_l4_attr(struct ufs_hba *hba)
 }
 
 /**
+ * cdns_ufs_set_hclkdiv()
  * Sets HCLKDIV register value based on the core_clk
  * @hba: host controller instance
  *
@@ -141,6 +142,7 @@ static int cdns_ufs_set_hclkdiv(struct ufs_hba *hba)
 }
 
 /**
+ * cdns_ufs_hce_enable_notify()
  * Called before and after HCE enable bit is set.
  * @hba: host controller instance
  * @status: notify stage (pre, post change)
@@ -157,6 +159,7 @@ static int cdns_ufs_hce_enable_notify(struct ufs_hba *hba,
 }
 
 /**
+ * cdns_ufs_hibern8_notify()
  * Called around hibern8 enter/exit.
  * @hba: host controller instance
  * @cmd: UIC Command
@@ -173,6 +176,7 @@ static void cdns_ufs_hibern8_notify(struct ufs_hba *hba, enum uic_cmd_dme cmd,
 }
 
 /**
+ * cdns_ufs_link_startup_notify()
  * Called before and after Link startup is carried out.
  * @hba: host controller instance
  * @status: notify stage (pre, post change)
-- 
GitLab


From 94f1e0c4d52ba23ac12b5092ee639efd52324e4b Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Wed, 10 Mar 2021 16:27:41 +0800
Subject: [PATCH 0710/4878] UPSTREAM: scsi: ufs: core: Remove unnecessary ret
 in ufshcd_populate_vreg()

The local variable 'ret' is always zero. Remove it and return 0 at the end
of the function.

Link: https://lore.kernel.org/r/20210310082741.647-1-zbestahu@gmail.com
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 2a8561b78e377f48aa638d7cd203628b6dfc2519)
Bug: 204438323
Change-Id: I2583fc02a5b3589f660f3fc042f6ba033e0e41a8
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-pltfrm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index b56d9b4e5f033..298e22ef907e8 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -106,7 +106,6 @@ out:
 static int ufshcd_populate_vreg(struct device *dev, const char *name,
 		struct ufs_vreg **out_vreg)
 {
-	int ret = 0;
 	char prop_name[MAX_PROP_SIZE];
 	struct ufs_vreg *vreg = NULL;
 	struct device_node *np = dev->of_node;
@@ -135,9 +134,8 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 		vreg->max_uA = 0;
 	}
 out:
-	if (!ret)
-		*out_vreg = vreg;
-	return ret;
+	*out_vreg = vreg;
+	return 0;
 }
 
 /**
-- 
GitLab


From 99628e0e5981deafa839514e272f140b0a2308d4 Mon Sep 17 00:00:00 2001
From: Caleb Connolly <caleb@connolly.tech>
Date: Wed, 10 Mar 2021 15:34:01 +0000
Subject: [PATCH 0711/4878] UPSTREAM: scsi: ufs: core: Remove version check

This check is redundant as all UFS versions are currently supported.

Link: https://lore.kernel.org/r/20210310153215.371227-4-caleb@connolly.tech
Reviewed-by: Bean Huo <beanhuo@micron.com>
Co-developed-by: Nitin Rawat <nitirawa@codeaurora.org>
Signed-off-by: Nitin Rawat <nitirawa@codeaurora.org>
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I7519165a34ee59e567c2b6bc2d99371cec924ee7
(cherry picked from commit 4f5e51c0ebf04278081caa871b4186789bc98b1c)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4db0eccbd9c9d..b1f21acbeb194 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9351,10 +9351,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Get UFS version supported by the controller */
 	hba->ufs_version = ufshcd_get_ufs_version(hba);
 
-	if (hba->ufs_version < ufshci_version(1, 0))
-		dev_err(hba->dev, "invalid UFS version 0x%x\n",
-			hba->ufs_version);
-
 	/* Get Interrupt bit mask per version */
 	hba->intr_mask = ufshcd_get_intr_mask(hba);
 
-- 
GitLab


From 8586be8dc7b068d63254a83b7f2bd2dff807cff8 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 12 Mar 2021 10:06:20 +0200
Subject: [PATCH 0712/4878] UPSTREAM: scsi: ufs: ufs-pci: Add support for Intel
 LKF

Add PCI ID and callbacks to support Intel LKF.

This includes the ability to use an ACPI device-specific method (DSM) to
perform a UFS device reset.

Link: https://lore.kernel.org/r/20210312080620.13311-1-adrian.hunter@intel.com
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit b2c57925df1ffc9c930629a39c1680035f735ffb)
Bug: 204438323
Change-Id: I15d0f7cc5ceb7fd46ae5277031a2345317103a3b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-pci.c | 169 ++++++++++++++++++++++++++++++++++
 1 file changed, 169 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index fadd566025b86..23ee828747e2e 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -15,13 +15,89 @@
 #include <linux/pm_runtime.h>
 #include <linux/pm_qos.h>
 #include <linux/debugfs.h>
+#include <linux/uuid.h>
+#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
+
+struct ufs_host {
+	void (*late_init)(struct ufs_hba *hba);
+};
+
+enum {
+	INTEL_DSM_FNS		=  0,
+	INTEL_DSM_RESET		=  1,
+};
 
 struct intel_host {
+	struct ufs_host ufs_host;
+	u32		dsm_fns;
 	u32		active_ltr;
 	u32		idle_ltr;
 	struct dentry	*debugfs_root;
+	struct gpio_desc *reset_gpio;
 };
 
+static const guid_t intel_dsm_guid =
+	GUID_INIT(0x1A4832A0, 0x7D03, 0x43CA,
+		  0xB0, 0x20, 0xF6, 0xDC, 0xD1, 0x2A, 0x19, 0x50);
+
+static int __intel_dsm(struct intel_host *intel_host, struct device *dev,
+		       unsigned int fn, u32 *result)
+{
+	union acpi_object *obj;
+	int err = 0;
+	size_t len;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL);
+	if (!obj)
+		return -EOPNOTSUPP;
+
+	if (obj->type != ACPI_TYPE_BUFFER || obj->buffer.length < 1) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	len = min_t(size_t, obj->buffer.length, 4);
+
+	*result = 0;
+	memcpy(result, obj->buffer.pointer, len);
+out:
+	ACPI_FREE(obj);
+
+	return err;
+}
+
+static int intel_dsm(struct intel_host *intel_host, struct device *dev,
+		     unsigned int fn, u32 *result)
+{
+	if (fn > 31 || !(intel_host->dsm_fns & (1 << fn)))
+		return -EOPNOTSUPP;
+
+	return __intel_dsm(intel_host, dev, fn, result);
+}
+
+static void intel_dsm_init(struct intel_host *intel_host, struct device *dev)
+{
+	int err;
+
+	err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
+	dev_dbg(dev, "DSM fns %#x, error %d\n", intel_host->dsm_fns, err);
+}
+
+static int ufs_intel_hce_enable_notify(struct ufs_hba *hba,
+				       enum ufs_notify_change_status status)
+{
+	/* Cannot enable ICE until after HC enable */
+	if (status == POST_CHANGE && hba->caps & UFSHCD_CAP_CRYPTO) {
+		u32 hce = ufshcd_readl(hba, REG_CONTROLLER_ENABLE);
+
+		hce |= CRYPTO_GENERAL_ENABLE;
+		ufshcd_writel(hba, hce, REG_CONTROLLER_ENABLE);
+	}
+
+	return 0;
+}
+
 static int ufs_intel_disable_lcc(struct ufs_hba *hba)
 {
 	u32 attr = UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE);
@@ -144,6 +220,41 @@ static void intel_remove_debugfs(struct ufs_hba *hba)
 	debugfs_remove_recursive(host->debugfs_root);
 }
 
+static int ufs_intel_device_reset(struct ufs_hba *hba)
+{
+	struct intel_host *host = ufshcd_get_variant(hba);
+
+	if (host->dsm_fns & INTEL_DSM_RESET) {
+		u32 result = 0;
+		int err;
+
+		err = intel_dsm(host, hba->dev, INTEL_DSM_RESET, &result);
+		if (!err && !result)
+			err = -EIO;
+		if (err)
+			dev_err(hba->dev, "%s: DSM error %d result %u\n",
+				__func__, err, result);
+		return err;
+	}
+
+	if (!host->reset_gpio)
+		return -EOPNOTSUPP;
+
+	gpiod_set_value_cansleep(host->reset_gpio, 1);
+	usleep_range(10, 15);
+
+	gpiod_set_value_cansleep(host->reset_gpio, 0);
+	usleep_range(10, 15);
+
+	return 0;
+}
+
+static struct gpio_desc *ufs_intel_get_reset_gpio(struct device *dev)
+{
+	/* GPIO in _DSD has active low setting */
+	return devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
+}
+
 static int ufs_intel_common_init(struct ufs_hba *hba)
 {
 	struct intel_host *host;
@@ -154,6 +265,23 @@ static int ufs_intel_common_init(struct ufs_hba *hba)
 	if (!host)
 		return -ENOMEM;
 	ufshcd_set_variant(hba, host);
+	intel_dsm_init(host, hba->dev);
+	if (host->dsm_fns & INTEL_DSM_RESET) {
+		if (hba->vops->device_reset)
+			hba->caps |= UFSHCD_CAP_DEEPSLEEP;
+	} else {
+		if (hba->vops->device_reset)
+			host->reset_gpio = ufs_intel_get_reset_gpio(hba->dev);
+		if (IS_ERR(host->reset_gpio)) {
+			dev_err(hba->dev, "%s: failed to get reset GPIO, error %ld\n",
+				__func__, PTR_ERR(host->reset_gpio));
+			host->reset_gpio = NULL;
+		}
+		if (host->reset_gpio) {
+			gpiod_set_value_cansleep(host->reset_gpio, 0);
+			hba->caps |= UFSHCD_CAP_DEEPSLEEP;
+		}
+	}
 	intel_ltr_expose(hba->dev);
 	intel_add_debugfs(hba);
 	return 0;
@@ -206,6 +334,31 @@ static int ufs_intel_ehl_init(struct ufs_hba *hba)
 	return ufs_intel_common_init(hba);
 }
 
+static void ufs_intel_lkf_late_init(struct ufs_hba *hba)
+{
+	/* LKF always needs a full reset, so set PM accordingly */
+	if (hba->caps & UFSHCD_CAP_DEEPSLEEP) {
+		hba->spm_lvl = UFS_PM_LVL_6;
+		hba->rpm_lvl = UFS_PM_LVL_6;
+	} else {
+		hba->spm_lvl = UFS_PM_LVL_5;
+		hba->rpm_lvl = UFS_PM_LVL_5;
+	}
+}
+
+static int ufs_intel_lkf_init(struct ufs_hba *hba)
+{
+	struct ufs_host *ufs_host;
+	int err;
+
+	hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8;
+	hba->caps |= UFSHCD_CAP_CRYPTO;
+	err = ufs_intel_common_init(hba);
+	ufs_host = ufshcd_get_variant(hba);
+	ufs_host->late_init = ufs_intel_lkf_late_init;
+	return err;
+}
+
 static struct ufs_hba_variant_ops ufs_intel_cnl_hba_vops = {
 	.name                   = "intel-pci",
 	.init			= ufs_intel_common_init,
@@ -222,6 +375,16 @@ static struct ufs_hba_variant_ops ufs_intel_ehl_hba_vops = {
 	.resume			= ufs_intel_resume,
 };
 
+static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
+	.name                   = "intel-pci",
+	.init			= ufs_intel_lkf_init,
+	.exit			= ufs_intel_common_exit,
+	.hce_enable_notify	= ufs_intel_hce_enable_notify,
+	.link_startup_notify	= ufs_intel_link_startup_notify,
+	.resume			= ufs_intel_resume,
+	.device_reset		= ufs_intel_device_reset,
+};
+
 #ifdef CONFIG_PM_SLEEP
 /**
  * ufshcd_pci_suspend - suspend power management function
@@ -321,6 +484,7 @@ static void ufshcd_pci_remove(struct pci_dev *pdev)
 static int
 ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
+	struct ufs_host *ufs_host;
 	struct ufs_hba *hba;
 	void __iomem *mmio_base;
 	int err;
@@ -358,6 +522,10 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return err;
 	}
 
+	ufs_host = ufshcd_get_variant(hba);
+	if (ufs_host && ufs_host->late_init)
+		ufs_host->late_init(hba);
+
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_allow(&pdev->dev);
 
@@ -383,6 +551,7 @@ static const struct pci_device_id ufshcd_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x9DFA), (kernel_ulong_t)&ufs_intel_cnl_hba_vops },
 	{ PCI_VDEVICE(INTEL, 0x4B41), (kernel_ulong_t)&ufs_intel_ehl_hba_vops },
 	{ PCI_VDEVICE(INTEL, 0x4B43), (kernel_ulong_t)&ufs_intel_ehl_hba_vops },
+	{ PCI_VDEVICE(INTEL, 0x98FA), (kernel_ulong_t)&ufs_intel_lkf_hba_vops },
 	{ }	/* terminate list */
 };
 
-- 
GitLab


From 9e6bc49a0b83d84e34c1e25a64a8e43132945e1a Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Thu, 18 Mar 2021 17:55:36 +0800
Subject: [PATCH 0713/4878] UPSTREAM: scsi: ufs: core: Tidy up WB configuration
 code

There are similar code implementations for WB configuration in
ufshcd_wb_{ctrl, toggle_flush_during_h8, toggle_flush}. Extract the common
parts to create a new helper with a flag parameter to reduce code
duplication.

Meanwhile, rename ufshcd_wb_ctrl() to ufshcd_wb_toggle() for better
readability. And remove unnecessary log messages from ufshcd_wb_config()
since relevant toggle function will emit messages. Also change
ufshcd_wb_toggle_flush{__during_h8} to void type accordingly.

Link: https://lore.kernel.org/r/20210318095536.2048-1-zbestahu@gmail.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 3b5f3c0d0548b8d963030b8728e380d6d57aa471)
Bug: 204438323
Change-Id: Id496b92c8fb797f887beb4683412c59c9c4969aa
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c |   2 +-
 drivers/scsi/ufs/ufshcd.c    | 101 ++++++++++++++---------------------
 drivers/scsi/ufs/ufshcd.h    |   2 +-
 3 files changed, 43 insertions(+), 62 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 0abcc9c7f724c..49a4e00c01cb2 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -248,7 +248,7 @@ static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
 	}
 
 	pm_runtime_get_sync(hba->dev);
-	res = ufshcd_wb_ctrl(hba, wb_enable);
+	res = ufshcd_wb_toggle(hba, wb_enable);
 	pm_runtime_put_sync(hba->dev);
 out:
 	up(&hba->host_sem);
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b1f21acbeb194..d3645da872216 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -246,8 +246,8 @@ static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on);
 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
 					 struct ufs_vreg *vreg);
 static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag);
-static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set);
-static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
+static void ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set);
+static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba);
 
@@ -274,20 +274,12 @@ static inline void ufshcd_disable_irq(struct ufs_hba *hba)
 
 static inline void ufshcd_wb_config(struct ufs_hba *hba)
 {
-	int ret;
-
 	if (!ufshcd_is_wb_allowed(hba))
 		return;
 
-	ret = ufshcd_wb_ctrl(hba, true);
-	if (ret)
-		dev_err(hba->dev, "%s: Enable WB failed: %d\n", __func__, ret);
-	else
-		dev_info(hba->dev, "%s: Write Booster Configured\n", __func__);
-	ret = ufshcd_wb_toggle_flush_during_h8(hba, true);
-	if (ret)
-		dev_err(hba->dev, "%s: En WB flush during H8: failed: %d\n",
-			__func__, ret);
+	ufshcd_wb_toggle(hba, true);
+
+	ufshcd_wb_toggle_flush_during_h8(hba, true);
 	if (!(hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL))
 		ufshcd_wb_toggle_flush(hba, true);
 }
@@ -1281,7 +1273,7 @@ static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
 	/* Enable Write Booster if we have scaled up else disable it */
 	downgrade_write(&hba->clk_scaling_lock);
 	is_writelock = false;
-	ufshcd_wb_ctrl(hba, scale_up);
+	ufshcd_wb_toggle(hba, scale_up);
 
 out_unprepare:
 	ufshcd_clock_scaling_unprepare(hba, is_writelock);
@@ -5626,85 +5618,74 @@ out:
 				__func__, err);
 }
 
-int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable)
+static int __ufshcd_wb_toggle(struct ufs_hba *hba, bool set, enum flag_idn idn)
 {
-	int ret;
 	u8 index;
-	enum query_opcode opcode;
+	enum query_opcode opcode = set ? UPIU_QUERY_OPCODE_SET_FLAG :
+				   UPIU_QUERY_OPCODE_CLEAR_FLAG;
+
+	index = ufshcd_wb_get_query_index(hba);
+	return ufshcd_query_flag_retry(hba, opcode, idn, index, NULL);
+}
+
+int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable)
+{
+	int ret;
 
 	if (!ufshcd_is_wb_allowed(hba))
 		return 0;
 
 	if (!(enable ^ hba->dev_info.wb_enabled))
 		return 0;
-	if (enable)
-		opcode = UPIU_QUERY_OPCODE_SET_FLAG;
-	else
-		opcode = UPIU_QUERY_OPCODE_CLEAR_FLAG;
 
-	index = ufshcd_wb_get_query_index(hba);
-	ret = ufshcd_query_flag_retry(hba, opcode,
-				      QUERY_FLAG_IDN_WB_EN, index, NULL);
+	ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_EN);
 	if (ret) {
-		dev_err(hba->dev, "%s write booster %s failed %d\n",
+		dev_err(hba->dev, "%s Write Booster %s failed %d\n",
 			__func__, enable ? "enable" : "disable", ret);
 		return ret;
 	}
 
 	hba->dev_info.wb_enabled = enable;
-	dev_dbg(hba->dev, "%s write booster %s %d\n",
-			__func__, enable ? "enable" : "disable", ret);
+	dev_info(hba->dev, "%s Write Booster %s\n",
+			__func__, enable ? "enabled" : "disabled");
 
 	return ret;
 }
 
-static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
+static void ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set)
 {
-	int val;
-	u8 index;
-
-	if (set)
-		val =  UPIU_QUERY_OPCODE_SET_FLAG;
-	else
-		val = UPIU_QUERY_OPCODE_CLEAR_FLAG;
+	int ret;
 
-	index = ufshcd_wb_get_query_index(hba);
-	return ufshcd_query_flag_retry(hba, val,
-				QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8,
-				index, NULL);
+	ret = __ufshcd_wb_toggle(hba, set,
+			QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8);
+	if (ret) {
+		dev_err(hba->dev, "%s: WB-Buf Flush during H8 %s failed: %d\n",
+			__func__, set ? "enable" : "disable", ret);
+		return;
+	}
+	dev_dbg(hba->dev, "%s WB-Buf Flush during H8 %s\n",
+			__func__, set ? "enabled" : "disabled");
 }
 
-static inline int ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable)
+static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable)
 {
 	int ret;
-	u8 index;
-	enum query_opcode opcode;
 
 	if (!ufshcd_is_wb_allowed(hba) ||
 	    hba->dev_info.wb_buf_flush_enabled == enable)
-		return 0;
-
-	if (enable)
-		opcode = UPIU_QUERY_OPCODE_SET_FLAG;
-	else
-		opcode = UPIU_QUERY_OPCODE_CLEAR_FLAG;
+		return;
 
-	index = ufshcd_wb_get_query_index(hba);
-	ret = ufshcd_query_flag_retry(hba, opcode,
-				      QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN,
-				      index, NULL);
- 	if (ret) {
+	ret = __ufshcd_wb_toggle(hba, enable, QUERY_FLAG_IDN_WB_BUFF_FLUSH_EN);
+	if (ret) {
 		dev_err(hba->dev, "%s WB-Buf Flush %s failed %d\n", __func__,
 			enable ? "enable" : "disable", ret);
-		goto out;
- 	}
- 
-	hba->dev_info.wb_buf_flush_enabled = enable;
+		return;
+	}
 
-	dev_dbg(hba->dev, "WB-Buf Flush %s\n", enable ? "enabled" : "disabled");
-out:
- 	return ret;
+	hba->dev_info.wb_buf_flush_enabled = enable;
 
+	dev_dbg(hba->dev, "%s WB-Buf Flush %s\n",
+			__func__, enable ? "enabled" : "disabled");
 }
 
 static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 71b5162171cca..e46ada2a43b46 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1213,7 +1213,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 			     u8 *desc_buff, int *buff_len,
 			     enum query_opcode desc_op);
 
-int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable);
+int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
 
 /* Wrapper functions for safely calling variant operations */
 static inline const char *ufshcd_get_var_name(struct ufs_hba *hba)
-- 
GitLab


From 234295211df8302de89ac307114fd1bf145c7f6f Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Thu, 11 Mar 2021 12:02:10 +0800
Subject: [PATCH 0714/4878] UPSTREAM: scsi: ufs: core: Correct status type in
 ufshcd_vops_pwr_change_notify()

The status parameter's type should be enum ufs_notify_change_status.

Link: https://lore.kernel.org/r/20210311040210.1315-1-zbestahu@gmail.com
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 7a0c0e6ce130f506449549c5c5fe7902cf83a200)
Bug: 204438323
Change-Id: I4c4bbb5e1b3ec26943cfd398451b52ec870cca2c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index e46ada2a43b46..71c7a80a49016 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1300,7 +1300,7 @@ static inline int ufshcd_vops_phy_initialization(struct ufs_hba *hba)
 }
 
 static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
-				  bool status,
+				  enum ufs_notify_change_status status,
 				  struct ufs_pa_layer_attr *dev_max_params,
 				  struct ufs_pa_layer_attr *dev_req_params)
 {
-- 
GitLab


From d2c982273025e3e529991c688c1461d51076b240 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Thu, 11 Mar 2021 12:28:33 +0800
Subject: [PATCH 0715/4878] UPSTREAM: scsi: ufs: ufs-exynos: Remove pwr_max
 from parameter list of exynos_ufs_post_pwr_mode()

pwr_max is unused, remove it.

Link: https://lore.kernel.org/r/20210311042833.1381-1-zbestahu@gmail.com
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit dfd35e1d5934ca5fb6a8f30cdaa24d919c23d7a3)
Bug: 204438323
Change-Id: Ibb4a4c90a67b151fc227cc5750a8e33a48c57108
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 397e5848b542a..c97d373fd796c 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -652,7 +652,6 @@ out:
 
 #define PWR_MODE_STR_LEN	64
 static int exynos_ufs_post_pwr_mode(struct ufs_hba *hba,
-				struct ufs_pa_layer_attr *pwr_max,
 				struct ufs_pa_layer_attr *pwr_req)
 {
 	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
@@ -1155,7 +1154,7 @@ static int exynos_ufs_pwr_change_notify(struct ufs_hba *hba,
 					      dev_req_params);
 		break;
 	case POST_CHANGE:
-		ret = exynos_ufs_post_pwr_mode(hba, NULL, dev_req_params);
+		ret = exynos_ufs_post_pwr_mode(hba, dev_req_params);
 		break;
 	}
 
-- 
GitLab


From eadb989dc03293048fa1d5548cab07b16ad9d227 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Fri, 19 Mar 2021 15:09:16 +0800
Subject: [PATCH 0716/4878] UPSTREAM: scsi: ufs: Remove unnecessary NULL checks
 in ufshcd_find_max_sup_active_icc_level()

vcc/vccq/vccq2 have already been NULL checked at this point in
ufshcd_find_max_sup_active_icc_level().

Link: https://lore.kernel.org/r/20210319070916.2254-1-zbestahu@gmail.com
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 0873045f63c474db5c9f816a01fb1a7f64ea21b2)
Bug: 204438323
Change-Id: I921b32f3bf880ae5e9997f2dd3f0515378fb2c79
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d3645da872216..9dc8eaf865c7f 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7254,19 +7254,19 @@ static u32 ufshcd_find_max_sup_active_icc_level(struct ufs_hba *hba,
 		goto out;
 	}
 
-	if (hba->vreg_info.vcc && hba->vreg_info.vcc->max_uA)
+	if (hba->vreg_info.vcc->max_uA)
 		icc_level = ufshcd_get_max_icc_level(
 				hba->vreg_info.vcc->max_uA,
 				POWER_DESC_MAX_ACTV_ICC_LVLS - 1,
 				&desc_buf[PWR_DESC_ACTIVE_LVLS_VCC_0]);
 
-	if (hba->vreg_info.vccq && hba->vreg_info.vccq->max_uA)
+	if (hba->vreg_info.vccq->max_uA)
 		icc_level = ufshcd_get_max_icc_level(
 				hba->vreg_info.vccq->max_uA,
 				icc_level,
 				&desc_buf[PWR_DESC_ACTIVE_LVLS_VCCQ_0]);
 
-	if (hba->vreg_info.vccq2 && hba->vreg_info.vccq2->max_uA)
+	if (hba->vreg_info.vccq2->max_uA)
 		icc_level = ufshcd_get_max_icc_level(
 				hba->vreg_info.vccq2->max_uA,
 				icc_level,
-- 
GitLab


From 99b092bf94b394f2842cc30f1fa9b03bb81b880f Mon Sep 17 00:00:00 2001
From: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Date: Tue, 2 Mar 2021 14:08:18 +0800
Subject: [PATCH 0717/4878] UPSTREAM: scsi: ufs: Convert sysfs sprintf/snprintf
 family to sysfs_emit

Fix the following coccicheck warning:

./drivers/scsi/ufs/ufshcd.c:1538:8-16: WARNING: use scnprintf or
sprintf.

Link: https://lore.kernel.org/r/1614665298-115183-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 1481b7fe438fff3bd918bcb344e75bdf7ce47bb8)
Bug: 204438323
Change-Id: Ia584e2fae77f63bdf705d42a5bd93afbf926994f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9dc8eaf865c7f..33aafcb337a75 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1545,7 +1545,7 @@ static ssize_t ufshcd_clkscale_enable_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%d\n", hba->clk_scaling.is_enabled);
+	return sysfs_emit(buf, "%d\n", hba->clk_scaling.is_enabled);
 }
 
 static ssize_t ufshcd_clkscale_enable_store(struct device *dev,
-- 
GitLab


From 17bc03c7183185c48c982c2fcf50c3e253f92158 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Date: Wed, 31 Mar 2021 17:43:38 -0500
Subject: [PATCH 0718/4878] UPSTREAM: scsi: ufs: core: Fix out-of-bounds
 warnings in ufshcd_exec_raw_upiu_cmd()

Fix the following out-of-bounds warnings by enclosing some structure
members into new structure objects upiu_req and upiu_rsp:

include/linux/fortify-string.h:20:29: warning: '__builtin_memcpy' offset [29, 48] from the object at 'treq' is out of the bounds of referenced subobject 'req_header' with type 'struct utp_upiu_header' at offset 16 [-Warray-bounds]
include/linux/fortify-string.h:20:29: warning: '__builtin_memcpy' offset [61, 80] from the object at 'treq' is out of the bounds of referenced subobject 'rsp_header' with type 'struct utp_upiu_header' at offset 48 [-Warray-bounds]
arch/m68k/include/asm/string.h:72:25: warning: '__builtin_memcpy' offset [29, 48] from the object at 'treq' is out of the bounds of referenced subobject 'req_header' with type 'struct utp_upiu_header' at offset 16 [-Warray-bounds]
arch/m68k/include/asm/string.h:72:25: warning: '__builtin_memcpy' offset [61, 80] from the object at 'treq' is out of the bounds of referenced subobject 'rsp_header' with type 'struct utp_upiu_header' at offset 48 [-Warray-bounds]

Refactor the code by making it more structured.

The problem is that the original code is trying to copy data into a bunch
of struct members adjacent to each other in a single call to memcpy(). Now
that a new struct _upiu_req_ enclosing all those adjacent members is
introduced, memcpy() doesn't overrun the length of &treq.req_header,
because the address of the new struct object _upiu_req_ is used as the
destination, instead. The same problem is present when memcpy() overruns
the length of the source &treq.rsp_header; in this case the address of the
new struct object _upiu_rsp_ is used, instead.

Also, this helps with the ongoing efforts to enable -Warray-bounds and
avoid confusing the compiler.

Link: https://github.com/KSPP/linux/issues/109
Link: https://lore.kernel.org/lkml/60640558.lsAxiK6otPwTo9rv%25lkp@intel.com/
Link: https://lore.kernel.org/r/20210331224338.GA347171@embeddedor
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Build-tested-by: kernel test robot <lkp@intel.com>
(cherry picked from commit 1352eec8c0da71ee14b6b3bd46d49f8523f8e106)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I3d49ddb96803bfdca9d19d33fb359bfd623ce41c
---
 drivers/scsi/ufs/ufshcd.c | 28 ++++++++++++++++------------
 drivers/scsi/ufs/ufshci.h | 22 +++++++++++++---------
 2 files changed, 29 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 33aafcb337a75..ca06a5274063b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -341,11 +341,15 @@ static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 
 	trace_android_vh_ufs_send_tm_command(hba, tag, str_t_to_str[str_t]);
 	if (str_t == UFS_TM_SEND)
-		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
-				  &descp->input_param1, UFS_TSF_TM_INPUT);
+		trace_ufshcd_upiu(dev_name(hba->dev), str_t,
+				  &descp->upiu_req.req_header,
+				  &descp->upiu_req.input_param1,
+				  UFS_TSF_TM_INPUT);
 	else
-		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->rsp_header,
-				  &descp->output_param1, UFS_TSF_TM_OUTPUT);
+		trace_ufshcd_upiu(dev_name(hba->dev), str_t,
+				  &descp->upiu_rsp.rsp_header,
+				  &descp->upiu_rsp.output_param1,
+				  UFS_TSF_TM_OUTPUT);
 }
 
 static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
@@ -6535,7 +6539,7 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 
 	task_tag = req->tag;
 	hba->tmf_rqs[req->tag] = req;
-	treq->req_header.dword_0 |= cpu_to_be32(task_tag);
+	treq->upiu_req.req_header.dword_0 |= cpu_to_be32(task_tag);
 
 	memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq));
 	ufshcd_vops_setup_task_mgmt(hba, task_tag, tm_function);
@@ -6609,16 +6613,16 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id,
 	treq.header.dword_2 = cpu_to_le32(OCS_INVALID_COMMAND_STATUS);
 
 	/* Configure task request UPIU */
-	treq.req_header.dword_0 = cpu_to_be32(lun_id << 8) |
+	treq.upiu_req.req_header.dword_0 = cpu_to_be32(lun_id << 8) |
 				  cpu_to_be32(UPIU_TRANSACTION_TASK_REQ << 24);
-	treq.req_header.dword_1 = cpu_to_be32(tm_function << 16);
+	treq.upiu_req.req_header.dword_1 = cpu_to_be32(tm_function << 16);
 
 	/*
 	 * The host shall provide the same value for LUN field in the basic
 	 * header and for Input Parameter.
 	 */
-	treq.input_param1 = cpu_to_be32(lun_id);
-	treq.input_param2 = cpu_to_be32(task_id);
+	treq.upiu_req.input_param1 = cpu_to_be32(lun_id);
+	treq.upiu_req.input_param2 = cpu_to_be32(task_id);
 
 	err = __ufshcd_issue_tm_cmd(hba, &treq, tm_function);
 	if (err == -ETIMEDOUT)
@@ -6629,7 +6633,7 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id,
 		dev_err(hba->dev, "%s: failed, ocs = 0x%x\n",
 				__func__, ocs_value);
 	else if (tm_response)
-		*tm_response = be32_to_cpu(treq.output_param1) &
+		*tm_response = be32_to_cpu(treq.upiu_rsp.output_param1) &
 				MASK_TM_SERVICE_RESP;
 	return err;
 }
@@ -6795,7 +6799,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 		treq.header.dword_0 = cpu_to_le32(UTP_REQ_DESC_INT_CMD);
 		treq.header.dword_2 = cpu_to_le32(OCS_INVALID_COMMAND_STATUS);
 
-		memcpy(&treq.req_header, req_upiu, sizeof(*req_upiu));
+		memcpy(&treq.upiu_req, req_upiu, sizeof(*req_upiu));
 
 		err = __ufshcd_issue_tm_cmd(hba, &treq, tm_f);
 		if (err == -ETIMEDOUT)
@@ -6808,7 +6812,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 			break;
 		}
 
-		memcpy(rsp_upiu, &treq.rsp_header, sizeof(*rsp_upiu));
+		memcpy(rsp_upiu, &treq.upiu_rsp, sizeof(*rsp_upiu));
 
 		break;
 	default:
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 757727dbab815..37e05eef33608 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -495,17 +495,21 @@ struct utp_task_req_desc {
 	struct request_desc_header header;
 
 	/* DW 4-11 - Task request UPIU structure */
-	struct utp_upiu_header	req_header;
-	__be32			input_param1;
-	__be32			input_param2;
-	__be32			input_param3;
-	__be32			__reserved1[2];
+	struct {
+		struct utp_upiu_header	req_header;
+		__be32			input_param1;
+		__be32			input_param2;
+		__be32			input_param3;
+		__be32			__reserved1[2];
+	} upiu_req;
 
 	/* DW 12-19 - Task Management Response UPIU structure */
-	struct utp_upiu_header	rsp_header;
-	__be32			output_param1;
-	__be32			output_param2;
-	__be32			__reserved2[3];
+	struct {
+		struct utp_upiu_header	rsp_header;
+		__be32			output_param1;
+		__be32			output_param2;
+		__be32			__reserved2[3];
+	} upiu_rsp;
 };
 
 #endif /* End of Header */
-- 
GitLab


From e2dc144990859c14b8eb4259f770e2406795095e Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Fri, 9 Apr 2021 15:55:22 +0800
Subject: [PATCH 0719/4878] UPSTREAM: scsi: ufs: ufs-qcom: Remove redundant
 dev_err() call in ufs_qcom_init()

There is a error message within devm_ioremap_resource() already, so remove
the dev_err() call to avoid redundant error message.

Link: https://lore.kernel.org/r/20210409075522.2111083-1-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 790f9a48abd0e4cd1b202b6093055c295d4b8e3d)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I06b2ace0ac1759812e34e5a9bb7ebe0bb73fbd2d
---
 drivers/scsi/ufs/ufs-qcom.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index f8d4e1bf9807a..da6e0e77e854f 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1071,13 +1071,8 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 		if (res) {
 			host->dev_ref_clk_ctrl_mmio =
 					devm_ioremap_resource(dev, res);
-			if (IS_ERR(host->dev_ref_clk_ctrl_mmio)) {
-				dev_warn(dev,
-					"%s: could not map dev_ref_clk_ctrl_mmio, err %ld\n",
-					__func__,
-					PTR_ERR(host->dev_ref_clk_ctrl_mmio));
+			if (IS_ERR(host->dev_ref_clk_ctrl_mmio))
 				host->dev_ref_clk_ctrl_mmio = NULL;
-			}
 			host->dev_ref_clk_en_mask = BIT(5);
 		}
 	}
-- 
GitLab


From 530055dc9360da5b6292a176d68bb6106e84a3f9 Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Tue, 27 Apr 2021 16:38:42 +0900
Subject: [PATCH 0720/4878] UPSTREAM: scsi: ufs: core: Fix a typo in
 ufs-sysfs.c

Fix the following typo:

 ufschd_uic_link_state_to_string() -> ufshcd_uic_link_state_to_string()
 ufschd_ufs_dev_pwr_mode_to_string() -> ufshcd_ufs_dev_pwr_mode_to_string()

Link: https://lore.kernel.org/r/1381713434.61619509208911.JavaMail.epsvc@epcpadp3
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 2f1137140fbcffad582d9e5eacc7f189ae0cc110)
Change-Id: I19817b5b611c83cd8b792390e9ea86a8c1191ad3
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 49a4e00c01cb2..bcf130451ac51 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -11,7 +11,7 @@
 
 #include <trace/hooks/ufshcd.h>
 
-static const char *ufschd_uic_link_state_to_string(
+static const char *ufshcd_uic_link_state_to_string(
 			enum uic_link_state state)
 {
 	switch (state) {
@@ -23,7 +23,7 @@ static const char *ufschd_uic_link_state_to_string(
 	}
 }
 
-static const char *ufschd_ufs_dev_pwr_mode_to_string(
+static const char *ufshcd_ufs_dev_pwr_mode_to_string(
 			enum ufs_dev_pwr_mode state)
 {
 	switch (state) {
@@ -83,7 +83,7 @@ static ssize_t rpm_target_dev_state_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return sysfs_emit(buf, "%s\n", ufschd_ufs_dev_pwr_mode_to_string(
+	return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string(
 			ufs_pm_lvl_states[hba->rpm_lvl].dev_state));
 }
 
@@ -92,7 +92,7 @@ static ssize_t rpm_target_link_state_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return sysfs_emit(buf, "%s\n", ufschd_uic_link_state_to_string(
+	return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string(
 			ufs_pm_lvl_states[hba->rpm_lvl].link_state));
 }
 
@@ -115,7 +115,7 @@ static ssize_t spm_target_dev_state_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return sysfs_emit(buf, "%s\n", ufschd_ufs_dev_pwr_mode_to_string(
+	return sysfs_emit(buf, "%s\n", ufshcd_ufs_dev_pwr_mode_to_string(
 				ufs_pm_lvl_states[hba->spm_lvl].dev_state));
 }
 
@@ -124,7 +124,7 @@ static ssize_t spm_target_link_state_show(struct device *dev,
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 
-	return sysfs_emit(buf, "%s\n", ufschd_uic_link_state_to_string(
+	return sysfs_emit(buf, "%s\n", ufshcd_uic_link_state_to_string(
 				ufs_pm_lvl_states[hba->spm_lvl].link_state));
 }
 
-- 
GitLab


From 5054e8d09341b70f0e078e0bd2609d27d2b8b1c9 Mon Sep 17 00:00:00 2001
From: Asutosh Das <asutoshd@codeaurora.org>
Date: Fri, 23 Apr 2021 17:20:16 -0700
Subject: [PATCH 0721/4878] UPSTREAM: scsi: ufs: core: Enable power management
 for wlun

During runtime-suspend of ufs host, the SCSI devices are already suspended
and so are the queues associated with them. However, the ufs host sends SSU
(START_STOP_UNIT) to the wlun during runtime-suspend.

During the process blk_queue_enter() checks if the queue is not in suspended
state. If so, it waits for the queue to resume, and never comes out of
it. Commit 52abca64fd94 ("scsi: block: Do not accept any requests while
suspended") adds the check to see if the queue is in suspended state in
blk_queue_enter().

Call trace:
 __switch_to+0x174/0x2c4
 __schedule+0x478/0x764
 schedule+0x9c/0xe0
 blk_queue_enter+0x158/0x228
 blk_mq_alloc_request+0x40/0xa4
 blk_get_request+0x2c/0x70
 __scsi_execute+0x60/0x1c4
 ufshcd_set_dev_pwr_mode+0x124/0x1e4
 ufshcd_suspend+0x208/0x83c
 ufshcd_runtime_suspend+0x40/0x154
 ufshcd_pltfrm_runtime_suspend+0x14/0x20
 pm_generic_runtime_suspend+0x28/0x3c
 __rpm_callback+0x80/0x2a4
 rpm_suspend+0x308/0x614
 rpm_idle+0x158/0x228
 pm_runtime_work+0x84/0xac
 process_one_work+0x1f0/0x470
 worker_thread+0x26c/0x4c8
 kthread+0x13c/0x320
 ret_from_fork+0x10/0x18

Fix this by registering ufs device wlun as a SCSI driver and registering it
for block runtime-pm. Also make this a supplier for all other LUNs. This
way the wlun device suspends after all the consumers and resumes after HBA
resumes. This also registers a new SCSI driver for rpmb wlun. This new
driver is mostly used to clear rpmb uac.

[mkp: resolve merge conflict with 5.13-rc1 and fix doc warning]

Fixed smatch warnings:
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

Link: https://lore.kernel.org/r/4662c462e79e3e7f541f54f88f8993f421026d83.1619223249.git.asutoshd@codeaurora.org
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Co-developed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit b294ff3e34490f36233230e9ca70503d3924a6f3)
Bug: 204438323
Change-Id: Idacf4d4531d794093a7a2152fad5e671b0268f98
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/cdns-pltfrm.c     |   2 +
 drivers/scsi/ufs/tc-dwc-g210-pci.c |   2 +
 drivers/scsi/ufs/ufs-debugfs.c     |   6 +-
 drivers/scsi/ufs/ufs-debugfs.h     |   2 +-
 drivers/scsi/ufs/ufs-exynos.c      |   2 +
 drivers/scsi/ufs/ufs-hisi.c        |   2 +
 drivers/scsi/ufs/ufs-mediatek.c    |  12 +-
 drivers/scsi/ufs/ufs-qcom.c        |   2 +
 drivers/scsi/ufs/ufs_bsg.c         |   6 +-
 drivers/scsi/ufs/ufshcd-pci.c      |  36 +-
 drivers/scsi/ufs/ufshcd.c          | 688 ++++++++++++++++++++---------
 drivers/scsi/ufs/ufshcd.h          |  33 ++
 include/trace/events/ufs.h         |  20 +
 13 files changed, 563 insertions(+), 250 deletions(-)

diff --git a/drivers/scsi/ufs/cdns-pltfrm.c b/drivers/scsi/ufs/cdns-pltfrm.c
index 13d92043e13b0..908ff39c48566 100644
--- a/drivers/scsi/ufs/cdns-pltfrm.c
+++ b/drivers/scsi/ufs/cdns-pltfrm.c
@@ -323,6 +323,8 @@ static const struct dev_pm_ops cdns_ufs_dev_pm_ops = {
 	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
 	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
 	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	.prepare	 = ufshcd_suspend_prepare,
+	.complete	 = ufshcd_resume_complete,
 };
 
 static struct platform_driver cdns_ufs_pltfrm_driver = {
diff --git a/drivers/scsi/ufs/tc-dwc-g210-pci.c b/drivers/scsi/ufs/tc-dwc-g210-pci.c
index 67a6a61154b71..ec4589afbc130 100644
--- a/drivers/scsi/ufs/tc-dwc-g210-pci.c
+++ b/drivers/scsi/ufs/tc-dwc-g210-pci.c
@@ -148,6 +148,8 @@ static const struct dev_pm_ops tc_dwc_g210_pci_pm_ops = {
 	.runtime_suspend = tc_dwc_g210_pci_runtime_suspend,
 	.runtime_resume  = tc_dwc_g210_pci_runtime_resume,
 	.runtime_idle    = tc_dwc_g210_pci_runtime_idle,
+	.prepare	 = ufshcd_suspend_prepare,
+	.complete	 = ufshcd_resume_complete,
 };
 
 static const struct pci_device_id tc_dwc_g210_pci_tbl[] = {
diff --git a/drivers/scsi/ufs/ufs-debugfs.c b/drivers/scsi/ufs/ufs-debugfs.c
index ced9ef4d7c782..4e1ff209b9336 100644
--- a/drivers/scsi/ufs/ufs-debugfs.c
+++ b/drivers/scsi/ufs/ufs-debugfs.c
@@ -13,7 +13,7 @@ void __init ufs_debugfs_init(void)
 	ufs_debugfs_root = debugfs_create_dir("ufshcd", NULL);
 }
 
-void __exit ufs_debugfs_exit(void)
+void ufs_debugfs_exit(void)
 {
 	debugfs_remove_recursive(ufs_debugfs_root);
 }
@@ -60,14 +60,14 @@ __acquires(&hba->host_sem)
 		up(&hba->host_sem);
 		return -EBUSY;
 	}
-	pm_runtime_get_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
 	return 0;
 }
 
 static void ufs_debugfs_put_user_access(struct ufs_hba *hba)
 __releases(&hba->host_sem)
 {
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_put_sync(hba);
 	up(&hba->host_sem);
 }
 
diff --git a/drivers/scsi/ufs/ufs-debugfs.h b/drivers/scsi/ufs/ufs-debugfs.h
index 3ca29d30460ab..97548a3f90eb8 100644
--- a/drivers/scsi/ufs/ufs-debugfs.h
+++ b/drivers/scsi/ufs/ufs-debugfs.h
@@ -9,7 +9,7 @@ struct ufs_hba;
 
 #ifdef CONFIG_DEBUG_FS
 void __init ufs_debugfs_init(void);
-void __exit ufs_debugfs_exit(void);
+void ufs_debugfs_exit(void);
 void ufs_debugfs_hba_init(struct ufs_hba *hba);
 void ufs_debugfs_hba_exit(struct ufs_hba *hba);
 void ufs_debugfs_exception_event(struct ufs_hba *hba, u16 status);
diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index c97d373fd796c..3710f03212efe 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1267,6 +1267,8 @@ static const struct dev_pm_ops exynos_ufs_pm_ops = {
 	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
 	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
 	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	.prepare	 = ufshcd_suspend_prepare,
+	.complete	 = ufshcd_resume_complete,
 };
 
 static struct platform_driver exynos_ufs_pltform = {
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index d0626773eb386..d374ebb80825e 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -577,6 +577,8 @@ static const struct dev_pm_ops ufs_hisi_pm_ops = {
 	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
 	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
 	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	.prepare	 = ufshcd_suspend_prepare,
+	.complete	 = ufshcd_resume_complete,
 };
 
 static struct platform_driver ufs_hisi_pltform = {
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 7f4dc2345bbf8..d2c251628a058 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -822,12 +822,10 @@ static int ufs_mtk_post_link(struct ufs_hba *hba)
 	/* enable unipro clock gating feature */
 	ufs_mtk_cfg_unipro_cg(hba, true);
 
-	/* configure auto-hibern8 timer to 10ms */
-	if (ufshcd_is_auto_hibern8_supported(hba)) {
-		ufshcd_auto_hibern8_update(hba,
-			FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 10) |
-			FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3));
-	}
+	/* will be configured during probe hba */
+	if (ufshcd_is_auto_hibern8_supported(hba))
+		hba->ahit = FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 10) |
+			FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3);
 
 	ufs_mtk_setup_clk_gating(hba);
 
@@ -1147,6 +1145,8 @@ static const struct dev_pm_ops ufs_mtk_pm_ops = {
 	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
 	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
 	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	.prepare	 = ufshcd_suspend_prepare,
+	.complete	 = ufshcd_resume_complete,
 };
 
 static struct platform_driver ufs_mtk_pltform = {
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index da6e0e77e854f..7f6c9a37a01ec 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1561,6 +1561,8 @@ static const struct dev_pm_ops ufs_qcom_pm_ops = {
 	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
 	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
 	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	.prepare	 = ufshcd_suspend_prepare,
+	.complete	 = ufshcd_resume_complete,
 };
 
 static struct platform_driver ufs_qcom_pltform = {
diff --git a/drivers/scsi/ufs/ufs_bsg.c b/drivers/scsi/ufs/ufs_bsg.c
index 5b2bc1a6f9226..39bf204c6ec3e 100644
--- a/drivers/scsi/ufs/ufs_bsg.c
+++ b/drivers/scsi/ufs/ufs_bsg.c
@@ -97,7 +97,7 @@ static int ufs_bsg_request(struct bsg_job *job)
 
 	bsg_reply->reply_payload_rcv_len = 0;
 
-	pm_runtime_get_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
 
 	msgcode = bsg_request->msgcode;
 	switch (msgcode) {
@@ -106,7 +106,7 @@ static int ufs_bsg_request(struct bsg_job *job)
 		ret = ufs_bsg_alloc_desc_buffer(hba, job, &desc_buff,
 						&desc_len, desc_op);
 		if (ret) {
-			pm_runtime_put_sync(hba->dev);
+			ufshcd_rpm_put_sync(hba);
 			goto out;
 		}
 
@@ -138,7 +138,7 @@ static int ufs_bsg_request(struct bsg_job *job)
 		break;
 	}
 
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_put_sync(hba);
 
 	if (!desc_buff)
 		goto out;
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index 23ee828747e2e..e6c334bfb4c2c 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -410,29 +410,6 @@ static int ufshcd_pci_resume(struct device *dev)
 	return ufshcd_system_resume(dev_get_drvdata(dev));
 }
 
-/**
- * ufshcd_pci_poweroff - suspend-to-disk poweroff function
- * @dev: pointer to PCI device handle
- *
- * Returns 0 if successful
- * Returns non-zero otherwise
- */
-static int ufshcd_pci_poweroff(struct device *dev)
-{
-	struct ufs_hba *hba = dev_get_drvdata(dev);
-	int spm_lvl = hba->spm_lvl;
-	int ret;
-
-	/*
-	 * For poweroff we need to set the UFS device to PowerDown mode.
-	 * Force spm_lvl to ensure that.
-	 */
-	hba->spm_lvl = 5;
-	ret = ufshcd_system_suspend(hba);
-	hba->spm_lvl = spm_lvl;
-	return ret;
-}
-
 #endif /* !CONFIG_PM_SLEEP */
 
 #ifdef CONFIG_PM
@@ -533,17 +510,14 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 }
 
 static const struct dev_pm_ops ufshcd_pci_pm_ops = {
-#ifdef CONFIG_PM_SLEEP
-	.suspend	= ufshcd_pci_suspend,
-	.resume		= ufshcd_pci_resume,
-	.freeze		= ufshcd_pci_suspend,
-	.thaw		= ufshcd_pci_resume,
-	.poweroff	= ufshcd_pci_poweroff,
-	.restore	= ufshcd_pci_resume,
-#endif
 	SET_RUNTIME_PM_OPS(ufshcd_pci_runtime_suspend,
 			   ufshcd_pci_runtime_resume,
 			   ufshcd_pci_runtime_idle)
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_pci_suspend, ufshcd_pci_resume)
+#ifdef CONFIG_PM_SLEEP
+	.prepare	= ufshcd_suspend_prepare,
+	.complete	= ufshcd_resume_complete,
+#endif
 };
 
 static const struct pci_device_id ufshcd_pci_tbl[] = {
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ca06a5274063b..77786f1b1348d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -16,6 +16,7 @@
 #include <linux/bitfield.h>
 #include <linux/blk-pm.h>
 #include <linux/blkdev.h>
+#include <scsi/scsi_driver.h>
 #include "ufshcd.h"
 #include "ufs_quirks.h"
 #include "unipro.h"
@@ -81,6 +82,8 @@
 /* Polling time to wait for fDeviceInit */
 #define FDEVICEINIT_COMPL_TIMEOUT 1500 /* millisecs */
 
+#define wlun_dev_to_hba(dv) shost_priv(to_scsi_device(dv)->host)
+
 #define ufshcd_toggle_vreg(_dev, _vreg, _on)				\
 	({                                                              \
 		int _ret;                                               \
@@ -1572,7 +1575,7 @@ static ssize_t ufshcd_clkscale_enable_store(struct device *dev,
 	if (value == hba->clk_scaling.is_enabled)
 		goto out;
 
-	pm_runtime_get_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
 	ufshcd_hold(hba, false);
 
 	hba->clk_scaling.is_enabled = value;
@@ -1588,7 +1591,7 @@ static ssize_t ufshcd_clkscale_enable_store(struct device *dev,
 	}
 
 	ufshcd_release(hba);
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_put_sync(hba);
 out:
 	up(&hba->host_sem);
 	return err ? err : count;
@@ -2679,6 +2682,17 @@ static inline u16 ufshcd_upiu_wlun_to_scsi_wlun(u8 upiu_wlun_id)
 	return (upiu_wlun_id & ~UFS_UPIU_WLUN_ID) | SCSI_W_LUN_BASE;
 }
 
+static inline bool is_rpmb_wlun(struct scsi_device *sdev)
+{
+	return sdev->lun == ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_RPMB_WLUN);
+}
+
+static inline bool is_device_wlun(struct scsi_device *sdev)
+{
+	return sdev->lun ==
+		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_UFS_DEVICE_WLUN);
+}
+
 static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i)
 {
 	struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr +
@@ -4210,12 +4224,13 @@ void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit)
 	}
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
-	if (update && !pm_runtime_suspended(hba->dev)) {
-		pm_runtime_get_sync(hba->dev);
+	if (update &&
+	    !pm_runtime_suspended(&hba->sdev_ufs_device->sdev_gendev)) {
+		ufshcd_rpm_get_sync(hba);
 		ufshcd_hold(hba, false);
 		ufshcd_auto_hibern8_enable(hba);
 		ufshcd_release(hba);
-		pm_runtime_put(hba->dev);
+		ufshcd_rpm_put_sync(hba);
 	}
 }
 EXPORT_SYMBOL_GPL(ufshcd_auto_hibern8_update);
@@ -4913,6 +4928,43 @@ static inline void ufshcd_get_lu_power_on_wp_status(struct ufs_hba *hba,
 	}
 }
 
+/**
+ * ufshcd_setup_links - associate link b/w device wlun and other luns
+ * @sdev: pointer to SCSI device
+ * @hba: pointer to ufs hba
+ */
+static void ufshcd_setup_links(struct ufs_hba *hba, struct scsi_device *sdev)
+{
+	struct device_link *link;
+
+	/*
+	 * Device wlun is the supplier & rest of the luns are consumers.
+	 * This ensures that device wlun suspends after all other luns.
+	 */
+	if (hba->sdev_ufs_device) {
+		link = device_link_add(&sdev->sdev_gendev,
+				       &hba->sdev_ufs_device->sdev_gendev,
+				       DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
+		if (!link) {
+			dev_err(&sdev->sdev_gendev, "Failed establishing link - %s\n",
+				dev_name(&hba->sdev_ufs_device->sdev_gendev));
+			return;
+		}
+		hba->luns_avail--;
+		/* Ignore REPORT_LUN wlun probing */
+		if (hba->luns_avail == 1) {
+			ufshcd_rpm_put(hba);
+			return;
+		}
+	} else {
+		/*
+		 * Device wlun is probed. The assumption is that WLUNs are
+		 * scanned before other LUNs.
+		 */
+		hba->luns_avail--;
+	}
+}
+
 /**
  * ufshcd_slave_alloc - handle initial SCSI device configurations
  * @sdev: pointer to SCSI device
@@ -4944,6 +4996,8 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev)
 
 	ufshcd_get_lu_power_on_wp_status(hba, sdev);
 
+	ufshcd_setup_links(hba, sdev);
+
 	return 0;
 }
 
@@ -4997,8 +5051,13 @@ static int ufshcd_slave_configure(struct scsi_device *sdev)
 	blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1);
 	if (hba->quirks & UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE)
 		blk_queue_update_dma_alignment(q, PAGE_SIZE - 1);
-
-	if (ufshcd_is_rpm_autosuspend_allowed(hba))
+	/*
+	 * Block runtime-pm until all consumers are added.
+	 * Refer ufshcd_setup_links().
+	 */
+	if (is_device_wlun(sdev))
+		pm_runtime_get_noresume(&sdev->sdev_gendev);
+	else if (ufshcd_is_rpm_autosuspend_allowed(hba))
 		sdev->rpm_autosuspend = 1;
 
 	ufshcd_crypto_setup_rq_keyslot_manager(hba, q);
@@ -5119,15 +5178,9 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 			 */
 			if (!hba->pm_op_in_progress &&
 			    !ufshcd_eh_in_progress(hba) &&
-			    ufshcd_is_exception_event(lrbp->ucd_rsp_ptr) &&
-			    schedule_work(&hba->eeh_work)) {
-				/*
-				 * Prevent suspend once eeh_work is scheduled
-				 * to avoid deadlock between ufshcd_suspend
-				 * and exception event handler.
-				 */
-				pm_runtime_get_noresume(hba->dev);
-			}
+			    ufshcd_is_exception_event(lrbp->ucd_rsp_ptr))
+				/* Flushed in suspend */
+				schedule_work(&hba->eeh_work);
 
 			if (scsi_status == SAM_STAT_GOOD)
 				ufshpb_rsp_upiu(hba, lrbp);
@@ -5770,8 +5823,8 @@ static void ufshcd_rpm_dev_flush_recheck_work(struct work_struct *work)
 	 * after a certain delay to recheck the threshold by next runtime
 	 * suspend.
 	 */
-	pm_runtime_get_sync(hba->dev);
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
+	ufshcd_rpm_put_sync(hba);
 }
 
 /**
@@ -5788,7 +5841,6 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 	u32 status = 0;
 	hba = container_of(work, struct ufs_hba, eeh_work);
 
-	pm_runtime_get_sync(hba->dev);
 	ufshcd_scsi_block_requests(hba);
 	err = ufshcd_get_ee_status(hba, &status);
 	if (err) {
@@ -5805,14 +5857,6 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 	ufs_debugfs_exception_event(hba, status);
 out:
 	ufshcd_scsi_unblock_requests(hba);
-	/*
-	 * pm_runtime_get_noresume is called while scheduling
-	 * eeh_work to avoid suspend racing with exception work.
-	 * Hence decrement usage counter using pm_runtime_put_noidle
-	 * to allow suspend on completion of exception event handler.
-	 */
-	pm_runtime_put_noidle(hba->dev);
-	pm_runtime_put(hba->dev);
 	return;
 }
 
@@ -5937,12 +5981,13 @@ static void ufshcd_clk_scaling_suspend(struct ufs_hba *hba, bool suspend)
 
 static void ufshcd_err_handling_prepare(struct ufs_hba *hba)
 {
-	pm_runtime_get_sync(hba->dev);
-	if (pm_runtime_status_suspended(hba->dev) || hba->is_sys_suspended) {
+	ufshcd_rpm_get_sync(hba);
+	if (pm_runtime_status_suspended(&hba->sdev_ufs_device->sdev_gendev) ||
+	    hba->is_sys_suspended) {
 		enum ufs_pm_op pm_op;
 
 		/*
-		 * Don't assume anything of pm_runtime_get_sync(), if
+		 * Don't assume anything of resume, if
 		 * resume fails, irq and clocks can be OFF, and powers
 		 * can be OFF or in LPM.
 		 */
@@ -5977,12 +6022,13 @@ static void ufshcd_err_handling_unprepare(struct ufs_hba *hba)
 	ufshcd_release(hba);
 	if (ufshcd_is_clkscaling_supported(hba))
 		ufshcd_clk_scaling_suspend(hba, false);
-	pm_runtime_put(hba->dev);
+	ufshcd_rpm_put(hba);
 }
 
 static inline bool ufshcd_err_handling_should_stop(struct ufs_hba *hba)
 {
 	return (!hba->is_powered || hba->shutting_down ||
+		!hba->sdev_ufs_device ||
 		hba->ufshcd_state == UFSHCD_STATE_ERROR ||
 		(!(hba->saved_err || hba->saved_uic_err || hba->force_reset ||
 		   ufshcd_is_link_broken(hba))));
@@ -5998,14 +6044,18 @@ static void ufshcd_recover_pm_error(struct ufs_hba *hba)
 
 	hba->is_sys_suspended = false;
 	/*
-	 * Set RPM status of hba device to RPM_ACTIVE,
+	 * Set RPM status of wlun device to RPM_ACTIVE,
 	 * this also clears its runtime error.
 	 */
-	ret = pm_runtime_set_active(hba->dev);
+	ret = pm_runtime_set_active(&hba->sdev_ufs_device->sdev_gendev);
+
+	/* hba device might have a runtime error otherwise */
+	if (ret)
+		ret = pm_runtime_set_active(hba->dev);
 	/*
-	 * If hba device had runtime error, we also need to resume those
-	 * scsi devices under hba in case any of them has failed to be
-	 * resumed due to hba runtime resume failure. This is to unblock
+	 * If wlun device had runtime error, we also need to resume those
+	 * consumer scsi devices in case any of them has failed to be
+	 * resumed due to supplier runtime resume failure. This is to unblock
 	 * blk_queue_enter in case there are bios waiting inside it.
 	 */
 	if (!ret) {
@@ -7531,6 +7581,9 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
 		goto out;
 	}
 
+	hba->luns_avail = desc_buf[DEVICE_DESC_PARAM_NUM_LU] +
+		desc_buf[DEVICE_DESC_PARAM_NUM_WLU];
+
 	ufs_fixup_device_setup(hba);
 
 	ufshcd_wb_probe(hba, desc_buf);
@@ -8699,23 +8752,7 @@ static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba)
 		ufshcd_setup_hba_vreg(hba, true);
 }
 
-/**
- * ufshcd_suspend - helper function for suspend operations
- * @hba: per adapter instance
- * @pm_op: desired low power operation type
- *
- * This function will try to put the UFS device and link into low power
- * mode based on the "rpm_lvl" (Runtime PM level) or "spm_lvl"
- * (System PM level).
- *
- * If this function is called during shutdown, it will make sure that
- * both UFS device and UFS link is powered off.
- *
- * NOTE: UFS device & link must be active before we enter in this function.
- *
- * Returns 0 for success and non-zero for failure
- */
-static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 {
 	int ret = 0;
 	int check_for_bkops;
@@ -8723,7 +8760,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	enum ufs_dev_pwr_mode req_dev_pwr_mode;
 	enum uic_link_state req_link_state;
 
-	hba->pm_op_in_progress = 1;
+	hba->pm_op_in_progress = true;
 	if (!ufshcd_is_shutdown_pm(pm_op)) {
 		pm_lvl = ufshcd_is_runtime_pm(pm_op) ?
 			 hba->rpm_lvl : hba->spm_lvl;
@@ -8748,17 +8785,17 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 
 	if (req_dev_pwr_mode == UFS_ACTIVE_PWR_MODE &&
 			req_link_state == UIC_LINK_ACTIVE_STATE) {
-		goto disable_clks;
+		goto vops_suspend;
 	}
 
 	if ((req_dev_pwr_mode == hba->curr_dev_pwr_mode) &&
 	    (req_link_state == hba->uic_link_state))
-		goto enable_gating;
+		goto enable_scaling;
 
 	/* UFS device & link must be active before we enter in this function */
 	if (!ufshcd_is_ufs_dev_active(hba) || !ufshcd_is_link_active(hba)) {
 		ret = -EINVAL;
-		goto enable_gating;
+		goto enable_scaling;
 	}
 
 	if (ufshcd_is_runtime_pm(pm_op)) {
@@ -8770,7 +8807,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 			 */
 			ret = ufshcd_urgent_bkops(hba);
 			if (ret)
-				goto enable_gating;
+				goto enable_scaling;
 		} else {
 			/* make sure that auto bkops is disabled */
 			ufshcd_disable_auto_bkops(hba);
@@ -8798,7 +8835,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		if (!hba->dev_info.b_rpm_dev_flush_capable) {
 			ret = ufshcd_set_dev_pwr_mode(hba, req_dev_pwr_mode);
 			if (ret)
-				goto enable_gating;
+				goto enable_scaling;
 		}
 	}
 
@@ -8811,7 +8848,7 @@ static int ufshcd_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	if (ret)
 		goto set_dev_active;
 
-disable_clks:
+vops_suspend:
 	/*
 	 * Call vendor specific suspend callback. As these callbacks may access
 	 * vendor specific host controller register space call them before the
@@ -8820,28 +8857,9 @@ disable_clks:
 	ret = ufshcd_vops_suspend(hba, pm_op);
 	if (ret)
 		goto set_link_active;
-	/*
-	 * Disable the host irq as host controller as there won't be any
-	 * host controller transaction expected till resume.
-	 */
-	ufshcd_disable_irq(hba);
-
-	ufshcd_setup_clocks(hba, false);
-
-	if (ufshcd_is_clkgating_allowed(hba)) {
-		hba->clk_gating.state = CLKS_OFF;
-		trace_ufshcd_clk_gating(dev_name(hba->dev),
-					hba->clk_gating.state);
-	}
-
-	ufshcd_vreg_set_lpm(hba);
-
-	/* Put the host controller in low power mode if possible */
-	ufshcd_hba_vreg_set_lpm(hba);
 	goto out;
 
 set_link_active:
-	ufshcd_vreg_set_hpm(hba);
 	/*
 	 * Device hardware reset is required to exit DeepSleep. Also, for
 	 * DeepSleep, the link is off so host reset and restore will be done
@@ -8863,13 +8881,11 @@ set_dev_active:
 	}
 	if (!ufshcd_set_dev_pwr_mode(hba, UFS_ACTIVE_PWR_MODE))
 		ufshcd_disable_auto_bkops(hba);
-enable_gating:
+enable_scaling:
 	if (ufshcd_is_clkscaling_supported(hba))
 		ufshcd_clk_scaling_suspend(hba, false);
 
-	hba->clk_gating.is_suspended = false;
 	hba->dev_info.b_rpm_dev_flush_capable = false;
-	ufshcd_release(hba);
 	ufshpb_resume(hba);
 out:
 	if (hba->dev_info.b_rpm_dev_flush_capable) {
@@ -8877,43 +8893,21 @@ out:
 			msecs_to_jiffies(RPM_DEV_FLUSH_RECHECK_WORK_DELAY_MS));
 	}
 
-	hba->pm_op_in_progress = 0;
-
-	if (ret)
-		ufshcd_update_evt_hist(hba, UFS_EVT_SUSPEND_ERR, (u32)ret);
+	if (ret) {
+		ufshcd_update_evt_hist(hba, UFS_EVT_WL_SUSP_ERR, (u32)ret);
+		hba->clk_gating.is_suspended = false;
+		ufshcd_release(hba);
+	}
+	hba->pm_op_in_progress = false;
 	return ret;
 }
 
-/**
- * ufshcd_resume - helper function for resume operations
- * @hba: per adapter instance
- * @pm_op: runtime PM or system PM
- *
- * This function basically brings the UFS device, UniPro link and controller
- * to active state.
- *
- * Returns 0 for success and non-zero for failure
- */
-static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 {
 	int ret;
-	enum uic_link_state old_link_state;
-
-	hba->pm_op_in_progress = 1;
-	old_link_state = hba->uic_link_state;
+	enum uic_link_state old_link_state = hba->uic_link_state;
 
-	ufshcd_hba_vreg_set_hpm(hba);
-	ret = ufshcd_vreg_set_hpm(hba);
-	if (ret)
-		goto out;
-
-	/* Make sure clocks are enabled before accessing controller */
-	ret = ufshcd_setup_clocks(hba, true);
-	if (ret)
-		goto disable_vreg;
-
-	/* enable the host irq as host controller would be active soon */
-	ufshcd_enable_irq(hba);
+	hba->pm_op_in_progress = true;
 
 	/*
 	 * Call vendor specific resume callback. As these callbacks may access
@@ -8922,7 +8916,7 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	 */
 	ret = ufshcd_vops_resume(hba, pm_op);
 	if (ret)
-		goto disable_irq_and_vops_clks;
+		goto out;
 
 	/* For DeepSleep, the only supported option is to have the link off */
 	WARN_ON(ufshcd_is_ufs_dev_deepsleep(hba) && !ufshcd_is_link_off(hba));
@@ -8970,14 +8964,9 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	if (hba->ee_usr_mask)
 		ufshcd_write_ee_control(hba);
 
-	hba->clk_gating.is_suspended = false;
-
 	if (ufshcd_is_clkscaling_supported(hba))
 		ufshcd_clk_scaling_suspend(hba, false);
 
-	/* Enable Auto-Hibernate if configured */
-	ufshcd_auto_hibern8_enable(hba);
-
 	ufshpb_resume(hba);
 
 	if (hba->dev_info.b_rpm_dev_flush_capable) {
@@ -8985,27 +8974,211 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		cancel_delayed_work(&hba->rpm_dev_flush_recheck_work);
 	}
 
-	/* Schedule clock gating in case of no access to UFS device yet */
-	ufshcd_release(hba);
-
+	/* Enable Auto-Hibernate if configured */
+	ufshcd_auto_hibern8_enable(hba);
 	goto out;
 
 set_old_link_state:
 	ufshcd_link_state_transition(hba, old_link_state, 0);
 vendor_suspend:
 	ufshcd_vops_suspend(hba, pm_op);
-disable_irq_and_vops_clks:
+out:
+	if (ret)
+		ufshcd_update_evt_hist(hba, UFS_EVT_WL_RES_ERR, (u32)ret);
+	hba->clk_gating.is_suspended = false;
+	ufshcd_release(hba);
+	hba->pm_op_in_progress = false;
+	return ret;
+}
+
+static int ufshcd_wl_runtime_suspend(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ufs_hba *hba;
+	int ret;
+	ktime_t start = ktime_get();
+
+	hba = shost_priv(sdev->host);
+
+	ret = __ufshcd_wl_suspend(hba, UFS_RUNTIME_PM);
+	if (ret)
+		dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret);
+
+	trace_ufshcd_wl_runtime_suspend(dev_name(dev), ret,
+		ktime_to_us(ktime_sub(ktime_get(), start)),
+		hba->curr_dev_pwr_mode, hba->uic_link_state);
+
+	return ret;
+}
+
+static int ufshcd_wl_runtime_resume(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ufs_hba *hba;
+	int ret = 0;
+	ktime_t start = ktime_get();
+
+	hba = shost_priv(sdev->host);
+
+	ret = __ufshcd_wl_resume(hba, UFS_RUNTIME_PM);
+	if (ret)
+		dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret);
+
+	trace_ufshcd_wl_runtime_resume(dev_name(dev), ret,
+		ktime_to_us(ktime_sub(ktime_get(), start)),
+		hba->curr_dev_pwr_mode, hba->uic_link_state);
+
+	return ret;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ufshcd_wl_suspend(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ufs_hba *hba;
+	int ret = 0;
+	ktime_t start = ktime_get();
+
+	hba = shost_priv(sdev->host);
+	down(&hba->host_sem);
+
+	if (pm_runtime_suspended(dev))
+		goto out;
+
+	ret = __ufshcd_wl_suspend(hba, UFS_SYSTEM_PM);
+	if (ret) {
+		dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__,  ret);
+		up(&hba->host_sem);
+	}
+
+out:
+	if (!ret)
+		hba->is_sys_suspended = true;
+	trace_ufshcd_wl_suspend(dev_name(dev), ret,
+		ktime_to_us(ktime_sub(ktime_get(), start)),
+		hba->curr_dev_pwr_mode, hba->uic_link_state);
+
+	return ret;
+}
+
+static int ufshcd_wl_resume(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ufs_hba *hba;
+	int ret = 0;
+	ktime_t start = ktime_get();
+
+	hba = shost_priv(sdev->host);
+
+	if (pm_runtime_suspended(dev))
+		goto out;
+
+	ret = __ufshcd_wl_resume(hba, UFS_SYSTEM_PM);
+	if (ret)
+		dev_err(&sdev->sdev_gendev, "%s failed: %d\n", __func__, ret);
+out:
+	trace_ufshcd_wl_resume(dev_name(dev), ret,
+		ktime_to_us(ktime_sub(ktime_get(), start)),
+		hba->curr_dev_pwr_mode, hba->uic_link_state);
+	if (!ret)
+		hba->is_sys_suspended = false;
+	up(&hba->host_sem);
+	return ret;
+}
+#endif
+
+static void ufshcd_wl_shutdown(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ufs_hba *hba;
+
+	hba = shost_priv(sdev->host);
+
+	down(&hba->host_sem);
+	hba->shutting_down = true;
+	up(&hba->host_sem);
+
+	/* Turn on everything while shutting down */
+	ufshcd_rpm_get_sync(hba);
+	scsi_device_quiesce(sdev);
+	shost_for_each_device(sdev, hba->host) {
+		if (sdev == hba->sdev_ufs_device)
+			continue;
+		scsi_device_quiesce(sdev);
+	}
+	__ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM);
+}
+
+/**
+ * ufshcd_suspend - helper function for suspend operations
+ * @hba: per adapter instance
+ *
+ * This function will put disable irqs, turn off clocks
+ * and set vreg and hba-vreg in lpm mode.
+ * Also check the description of __ufshcd_wl_suspend().
+ */
+static int ufshcd_suspend(struct ufs_hba *hba)
+{
+	int ret;
+
+	if (!hba->is_powered)
+		return 0;
+	/*
+	 * Disable the host irq as host controller as there won't be any
+	 * host controller transaction expected till resume.
+	 */
 	ufshcd_disable_irq(hba);
-	ufshcd_setup_clocks(hba, false);
+	ret = ufshcd_setup_clocks(hba, false);
+	if (ret) {
+		ufshcd_enable_irq(hba);
+		return ret;
+	}
 	if (ufshcd_is_clkgating_allowed(hba)) {
 		hba->clk_gating.state = CLKS_OFF;
 		trace_ufshcd_clk_gating(dev_name(hba->dev),
 					hba->clk_gating.state);
 	}
+
+	ufshcd_vreg_set_lpm(hba);
+	/* Put the host controller in low power mode if possible */
+	ufshcd_hba_vreg_set_lpm(hba);
+	return ret;
+}
+
+/**
+ * ufshcd_resume - helper function for resume operations
+ * @hba: per adapter instance
+ *
+ * This function basically turns on the regulators, clocks and
+ * irqs of the hba.
+ * Also check the description of __ufshcd_wl_resume().
+ *
+ * Returns 0 for success and non-zero for failure
+ */
+static int ufshcd_resume(struct ufs_hba *hba)
+{
+	int ret;
+
+	if (!hba->is_powered)
+		return 0;
+
+	ufshcd_hba_vreg_set_hpm(hba);
+	ret = ufshcd_vreg_set_hpm(hba);
+	if (ret)
+		goto out;
+
+	/* Make sure clocks are enabled before accessing controller */
+	ret = ufshcd_setup_clocks(hba, true);
+	if (ret)
+		goto disable_vreg;
+
+	/* enable the host irq as host controller would be active soon */
+	ufshcd_enable_irq(hba);
+	goto out;
+
 disable_vreg:
 	ufshcd_vreg_set_lpm(hba);
 out:
-	hba->pm_op_in_progress = 0;
 	if (ret)
 		ufshcd_update_evt_hist(hba, UFS_EVT_RESUME_ERR, (u32)ret);
 	return ret;
@@ -9016,6 +9189,7 @@ out:
  * @hba: per adapter instance
  *
  * Check the description of ufshcd_suspend() function for more details.
+ * Also check the description of __ufshcd_wl_suspend().
  *
  * Returns 0 for success and non-zero for failure
  */
@@ -9024,44 +9198,14 @@ int ufshcd_system_suspend(struct ufs_hba *hba)
 	int ret = 0;
 	ktime_t start = ktime_get();
 
-	down(&hba->host_sem);
-
-	if (!hba->is_powered)
-		return 0;
-
-	cancel_delayed_work_sync(&hba->rpm_dev_flush_recheck_work);
-
-	if ((ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl) ==
-	     hba->curr_dev_pwr_mode) &&
-	    (ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl) ==
-	     hba->uic_link_state) &&
-	     pm_runtime_suspended(hba->dev) &&
-	     !hba->dev_info.b_rpm_dev_flush_capable)
+	if (pm_runtime_suspended(hba->dev))
 		goto out;
 
-	if (pm_runtime_suspended(hba->dev)) {
-		/*
-		 * UFS device and/or UFS link low power states during runtime
-		 * suspend seems to be different than what is expected during
-		 * system suspend. Hence runtime resume the devic & link and
-		 * let the system suspend low power states to take effect.
-		 * TODO: If resume takes longer time, we might have optimize
-		 * it in future by not resuming everything if possible.
-		 */
-		ret = ufshcd_runtime_resume(hba);
-		if (ret)
-			goto out;
-	}
-
-	ret = ufshcd_suspend(hba, UFS_SYSTEM_PM);
+	ret = ufshcd_suspend(hba);
 out:
 	trace_ufshcd_system_suspend(dev_name(hba->dev), ret,
 		ktime_to_us(ktime_sub(ktime_get(), start)),
 		hba->curr_dev_pwr_mode, hba->uic_link_state);
-	if (!ret)
-		hba->is_sys_suspended = true;
-	else
-		up(&hba->host_sem);
 	return ret;
 }
 EXPORT_SYMBOL(ufshcd_system_suspend);
@@ -9078,21 +9222,16 @@ int ufshcd_system_resume(struct ufs_hba *hba)
 	int ret = 0;
 	ktime_t start = ktime_get();
 
-	if (!hba->is_powered || pm_runtime_suspended(hba->dev))
-		/*
-		 * Let the runtime resume take care of resuming
-		 * if runtime suspended.
-		 */
+	if (pm_runtime_suspended(hba->dev))
 		goto out;
-	else
-		ret = ufshcd_resume(hba, UFS_SYSTEM_PM);
+
+	ret = ufshcd_resume(hba);
+
 out:
 	trace_ufshcd_system_resume(dev_name(hba->dev), ret,
 		ktime_to_us(ktime_sub(ktime_get(), start)),
 		hba->curr_dev_pwr_mode, hba->uic_link_state);
-	if (!ret)
-		hba->is_sys_suspended = false;
-	up(&hba->host_sem);
+
 	return ret;
 }
 EXPORT_SYMBOL(ufshcd_system_resume);
@@ -9102,19 +9241,17 @@ EXPORT_SYMBOL(ufshcd_system_resume);
  * @hba: per adapter instance
  *
  * Check the description of ufshcd_suspend() function for more details.
+ * Also check the description of __ufshcd_wl_suspend().
  *
  * Returns 0 for success and non-zero for failure
  */
 int ufshcd_runtime_suspend(struct ufs_hba *hba)
 {
-	int ret = 0;
+	int ret;
 	ktime_t start = ktime_get();
 
-	if (!hba->is_powered)
-		goto out;
-	else
-		ret = ufshcd_suspend(hba, UFS_RUNTIME_PM);
-out:
+	ret = ufshcd_suspend(hba);
+
 	trace_ufshcd_runtime_suspend(dev_name(hba->dev), ret,
 		ktime_to_us(ktime_sub(ktime_get(), start)),
 		hba->curr_dev_pwr_mode, hba->uic_link_state);
@@ -9126,33 +9263,19 @@ EXPORT_SYMBOL(ufshcd_runtime_suspend);
  * ufshcd_runtime_resume - runtime resume routine
  * @hba: per adapter instance
  *
- * This function basically brings the UFS device, UniPro link and controller
+ * This function basically brings controller
  * to active state. Following operations are done in this function:
  *
  * 1. Turn on all the controller related clocks
- * 2. Bring the UniPro link out of Hibernate state
- * 3. If UFS device is in sleep state, turn ON VCC rail and bring the UFS device
- *    to active state.
- * 4. If auto-bkops is enabled on the device, disable it.
- *
- * So following would be the possible power state after this function return
- * successfully:
- *	S1: UFS device in Active state with VCC rail ON
- *	    UniPro link in Active state
- *	    All the UFS/UniPro controller clocks are ON
- *
- * Returns 0 for success and non-zero for failure
+ * 2. Turn ON VCC rail
  */
 int ufshcd_runtime_resume(struct ufs_hba *hba)
 {
-	int ret = 0;
+	int ret;
 	ktime_t start = ktime_get();
 
-	if (!hba->is_powered)
-		goto out;
-	else
-		ret = ufshcd_resume(hba, UFS_RUNTIME_PM);
-out:
+	ret = ufshcd_resume(hba);
+
 	trace_ufshcd_runtime_resume(dev_name(hba->dev), ret,
 		ktime_to_us(ktime_sub(ktime_get(), start)),
 		hba->curr_dev_pwr_mode, hba->uic_link_state);
@@ -9170,30 +9293,20 @@ EXPORT_SYMBOL(ufshcd_runtime_idle);
  * ufshcd_shutdown - shutdown routine
  * @hba: per adapter instance
  *
- * This function would power off both UFS device and UFS link.
+ * This function would turn off both UFS device and UFS hba
+ * regulators. It would also disable clocks.
  *
  * Returns 0 always to allow force shutdown even in case of errors.
  */
 int ufshcd_shutdown(struct ufs_hba *hba)
 {
-	int ret = 0;
-
-	down(&hba->host_sem);
-	hba->shutting_down = true;
-	up(&hba->host_sem);
-
-	if (!hba->is_powered)
-		goto out;
-
 	if (ufshcd_is_ufs_dev_poweroff(hba) && ufshcd_is_link_off(hba))
 		goto out;
 
 	pm_runtime_get_sync(hba->dev);
 
-	ret = ufshcd_suspend(hba, UFS_SHUTDOWN_PM);
+	ufshcd_suspend(hba);
 out:
-	if (ret)
-		dev_err(hba->dev, "%s failed, err %d\n", __func__, ret);
 	hba->is_powered = false;
 	/* allow force shutdown even in case of errors */
 	return 0;
@@ -9207,6 +9320,8 @@ EXPORT_SYMBOL(ufshcd_shutdown);
  */
 void ufshcd_remove(struct ufs_hba *hba)
 {
+	if (hba->sdev_ufs_device)
+		ufshcd_rpm_get_sync(hba);
 	ufs_bsg_remove(hba);
 	ufshpb_remove(hba);
 	ufs_sysfs_remove_nodes(hba->dev);
@@ -9519,15 +9634,176 @@ out_error:
 }
 EXPORT_SYMBOL_GPL(ufshcd_init);
 
+void ufshcd_resume_complete(struct device *dev)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	if (hba->complete_put) {
+		ufshcd_rpm_put(hba);
+		hba->complete_put = false;
+	}
+	if (hba->rpmb_complete_put) {
+		ufshcd_rpmb_rpm_put(hba);
+		hba->rpmb_complete_put = false;
+	}
+}
+EXPORT_SYMBOL_GPL(ufshcd_resume_complete);
+
+int ufshcd_suspend_prepare(struct device *dev)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+	int ret;
+
+	/*
+	 * SCSI assumes that runtime-pm and system-pm for scsi drivers
+	 * are same. And it doesn't wake up the device for system-suspend
+	 * if it's runtime suspended. But ufs doesn't follow that.
+	 * Refer ufshcd_resume_complete()
+	 */
+	if (hba->sdev_ufs_device) {
+		ret = ufshcd_rpm_get_sync(hba);
+		if (ret < 0 && ret != -EACCES) {
+			ufshcd_rpm_put(hba);
+			return ret;
+		}
+		hba->complete_put = true;
+	}
+	if (hba->sdev_rpmb) {
+		ufshcd_rpmb_rpm_get_sync(hba);
+		hba->rpmb_complete_put = true;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ufshcd_suspend_prepare);
+
+#ifdef CONFIG_PM_SLEEP
+static int ufshcd_wl_poweroff(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct ufs_hba *hba = shost_priv(sdev->host);
+
+	__ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM);
+	return 0;
+}
+#endif
+
+static int ufshcd_wl_probe(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+
+	if (!is_device_wlun(sdev))
+		return -ENODEV;
+
+	blk_pm_runtime_init(sdev->request_queue, dev);
+	pm_runtime_set_autosuspend_delay(dev, 0);
+	pm_runtime_allow(dev);
+
+	return  0;
+}
+
+static int ufshcd_wl_remove(struct device *dev)
+{
+	pm_runtime_forbid(dev);
+	return 0;
+}
+
+static const struct dev_pm_ops ufshcd_wl_pm_ops = {
+#ifdef CONFIG_PM_SLEEP
+	.suspend = ufshcd_wl_suspend,
+	.resume = ufshcd_wl_resume,
+	.freeze = ufshcd_wl_suspend,
+	.thaw = ufshcd_wl_resume,
+	.poweroff = ufshcd_wl_poweroff,
+	.restore = ufshcd_wl_resume,
+#endif
+	SET_RUNTIME_PM_OPS(ufshcd_wl_runtime_suspend, ufshcd_wl_runtime_resume, NULL)
+};
+
+/*
+ * ufs_dev_wlun_template - describes ufs device wlun
+ * ufs-device wlun - used to send pm commands
+ * All luns are consumers of ufs-device wlun.
+ *
+ * Currently, no sd driver is present for wluns.
+ * Hence the no specific pm operations are performed.
+ * With ufs design, SSU should be sent to ufs-device wlun.
+ * Hence register a scsi driver for ufs wluns only.
+ */
+static struct scsi_driver ufs_dev_wlun_template = {
+	.gendrv = {
+		.name = "ufs_device_wlun",
+		.owner = THIS_MODULE,
+		.probe = ufshcd_wl_probe,
+		.remove = ufshcd_wl_remove,
+		.pm = &ufshcd_wl_pm_ops,
+		.shutdown = ufshcd_wl_shutdown,
+	},
+};
+
+static int ufshcd_rpmb_probe(struct device *dev)
+{
+	return is_rpmb_wlun(to_scsi_device(dev)) ? 0 : -ENODEV;
+}
+
+static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
+{
+	return 0;
+}
+
+static int ufshcd_rpmb_resume(struct device *dev)
+{
+	struct ufs_hba *hba = wlun_dev_to_hba(dev);
+
+	if (hba->sdev_rpmb)
+		ufshcd_clear_rpmb_uac(hba);
+	return 0;
+}
+
+static const struct dev_pm_ops ufs_rpmb_pm_ops = {
+	SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(NULL, ufshcd_rpmb_resume)
+};
+
+/**
+ * Describes the ufs rpmb wlun.
+ * Used only to send uac.
+ */
+static struct scsi_driver ufs_rpmb_wlun_template = {
+	.gendrv = {
+		.name = "ufs_rpmb_wlun",
+		.owner = THIS_MODULE,
+		.probe = ufshcd_rpmb_probe,
+		.pm = &ufs_rpmb_pm_ops,
+	},
+};
+
 static int __init ufshcd_core_init(void)
 {
+	int ret;
+
 	ufs_debugfs_init();
-	return 0;
+
+	ret = scsi_register_driver(&ufs_dev_wlun_template.gendrv);
+	if (ret)
+		goto debugfs_exit;
+
+	ret = scsi_register_driver(&ufs_rpmb_wlun_template.gendrv);
+	if (ret)
+		goto unregister;
+
+	return ret;
+unregister:
+	scsi_unregister_driver(&ufs_dev_wlun_template.gendrv);
+debugfs_exit:
+	ufs_debugfs_exit();
+	return ret;
 }
 
 static void __exit ufshcd_core_exit(void)
 {
 	ufs_debugfs_exit();
+	scsi_unregister_driver(&ufs_rpmb_wlun_template.gendrv);
+	scsi_unregister_driver(&ufs_dev_wlun_template.gendrv);
 }
 
 module_init(ufshcd_core_init);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 71c7a80a49016..92a8ed587930f 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -73,6 +73,8 @@ enum ufs_event_type {
 	UFS_EVT_LINK_STARTUP_FAIL,
 	UFS_EVT_RESUME_ERR,
 	UFS_EVT_SUSPEND_ERR,
+	UFS_EVT_WL_SUSP_ERR,
+	UFS_EVT_WL_RES_ERR,
 
 	/* abnormal events */
 	UFS_EVT_DEV_RESET,
@@ -943,6 +945,10 @@ struct ufs_hba {
 	u32 debugfs_ee_rate_limit_ms;
 #endif
 
+	u32 luns_avail;
+	bool complete_put;
+	bool rpmb_complete_put;
+
 	ANDROID_KABI_RESERVE(1);
 	ANDROID_KABI_RESERVE(2);
 	ANDROID_KABI_RESERVE(3);
@@ -1214,6 +1220,8 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 			     enum query_opcode desc_op);
 
 int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
+int ufshcd_suspend_prepare(struct device *dev);
+void ufshcd_resume_complete(struct device *dev);
 
 /* Wrapper functions for safely calling variant operations */
 static inline const char *ufshcd_get_var_name(struct ufs_hba *hba)
@@ -1428,4 +1436,29 @@ static inline int ufshcd_update_ee_usr_mask(struct ufs_hba *hba,
 					&hba->ee_drv_mask, set, clr);
 }
 
+static inline int ufshcd_rpm_get_sync(struct ufs_hba *hba)
+{
+	return pm_runtime_get_sync(&hba->sdev_ufs_device->sdev_gendev);
+}
+
+static inline int ufshcd_rpm_put_sync(struct ufs_hba *hba)
+{
+	return pm_runtime_put_sync(&hba->sdev_ufs_device->sdev_gendev);
+}
+
+static inline int ufshcd_rpm_put(struct ufs_hba *hba)
+{
+	return pm_runtime_put(&hba->sdev_ufs_device->sdev_gendev);
+}
+
+static inline int ufshcd_rpmb_rpm_get_sync(struct ufs_hba *hba)
+{
+	return pm_runtime_get_sync(&hba->sdev_rpmb->sdev_gendev);
+}
+
+static inline int ufshcd_rpmb_rpm_put(struct ufs_hba *hba)
+{
+	return pm_runtime_put(&hba->sdev_rpmb->sdev_gendev);
+}
+
 #endif /* End of Header */
diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index 1cb6f1afba0ea..599739ee7b208 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -246,6 +246,26 @@ DEFINE_EVENT(ufshcd_template, ufshcd_init,
 		      int dev_state, int link_state),
 	     TP_ARGS(dev_name, err, usecs, dev_state, link_state));
 
+DEFINE_EVENT(ufshcd_template, ufshcd_wl_suspend,
+	     TP_PROTO(const char *dev_name, int err, s64 usecs,
+		      int dev_state, int link_state),
+	     TP_ARGS(dev_name, err, usecs, dev_state, link_state));
+
+DEFINE_EVENT(ufshcd_template, ufshcd_wl_resume,
+	     TP_PROTO(const char *dev_name, int err, s64 usecs,
+		      int dev_state, int link_state),
+	     TP_ARGS(dev_name, err, usecs, dev_state, link_state));
+
+DEFINE_EVENT(ufshcd_template, ufshcd_wl_runtime_suspend,
+	     TP_PROTO(const char *dev_name, int err, s64 usecs,
+		      int dev_state, int link_state),
+	     TP_ARGS(dev_name, err, usecs, dev_state, link_state));
+
+DEFINE_EVENT(ufshcd_template, ufshcd_wl_runtime_resume,
+	     TP_PROTO(const char *dev_name, int err, s64 usecs,
+		      int dev_state, int link_state),
+	     TP_ARGS(dev_name, err, usecs, dev_state, link_state));
+
 TRACE_EVENT(ufshcd_command,
 	TP_PROTO(const char *dev_name, enum ufs_trace_str_t str_t,
 		 unsigned int tag, u32 doorbell, int transfer_len, u32 intr,
-- 
GitLab


From 95017378d1481b6233818b2ba0cca3069c9be797 Mon Sep 17 00:00:00 2001
From: Asutosh Das <asutoshd@codeaurora.org>
Date: Fri, 23 Apr 2021 17:20:17 -0700
Subject: [PATCH 0722/4878] UPSTREAM: scsi: ufs: sysfs: Resume the proper SCSI
 device

Resume the SCSI device described by the unit descriptor instead of the HBA.

Link: https://lore.kernel.org/r/889bb20c47cc1ae5e40390f533712b704000345b.1619223249.git.asutoshd@codeaurora.org
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit aef80fd1da322dfc96b227b2d1ee8177d885cc60)
Bug: 204438323
Change-Id: Icd51ce88beb293dd2ac441acd61049477c89e8df
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-sysfs.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index bcf130451ac51..6fa9071a23c23 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -247,9 +247,9 @@ static ssize_t wb_on_store(struct device *dev, struct device_attribute *attr,
 		goto out;
 	}
 
-	pm_runtime_get_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
 	res = ufshcd_wb_toggle(hba, wb_enable);
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_put_sync(hba);
 out:
 	up(&hba->host_sem);
 	return res < 0 ? res : count;
@@ -535,10 +535,10 @@ static ssize_t ufs_sysfs_read_desc_param(struct ufs_hba *hba,
 		goto out;
 	}
 
-	pm_runtime_get_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
 	ret = ufshcd_read_desc_param(hba, desc_id, desc_index,
 				param_offset, desc_buf, param_size);
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_put_sync(hba);
 	if (ret) {
 		ret = -EINVAL;
 		goto out;
@@ -928,7 +928,7 @@ static ssize_t _name##_show(struct device *dev,				\
 		up(&hba->host_sem);					\
 		return -ENOMEM;						\
 	}								\
-	pm_runtime_get_sync(hba->dev);					\
+	ufshcd_rpm_get_sync(hba);					\
 	ret = ufshcd_query_descriptor_retry(hba,			\
 		UPIU_QUERY_OPCODE_READ_DESC, QUERY_DESC_IDN_DEVICE,	\
 		0, 0, desc_buf, &desc_len);				\
@@ -945,7 +945,7 @@ static ssize_t _name##_show(struct device *dev,				\
 		goto out;						\
 	ret = sysfs_emit(buf, "%s\n", desc_buf);			\
 out:									\
-	pm_runtime_put_sync(hba->dev);					\
+	ufshcd_rpm_put_sync(hba);					\
 	kfree(desc_buf);						\
 	up(&hba->host_sem);						\
 	return ret;							\
@@ -994,10 +994,10 @@ static ssize_t _name##_show(struct device *dev,				\
 	}								\
 	if (ufshcd_is_wb_flags(QUERY_FLAG_IDN##_uname))			\
 		index = ufshcd_wb_get_query_index(hba);			\
-	pm_runtime_get_sync(hba->dev);					\
+	ufshcd_rpm_get_sync(hba);					\
 	ret = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG,	\
 		QUERY_FLAG_IDN##_uname, index, &flag);			\
-	pm_runtime_put_sync(hba->dev);					\
+	ufshcd_rpm_put_sync(hba);					\
 	if (ret) {							\
 		ret = -EINVAL;						\
 		goto out;						\
@@ -1065,10 +1065,10 @@ static ssize_t _name##_show(struct device *dev,				\
 	}								\
 	if (ufshcd_is_wb_attrs(QUERY_ATTR_IDN##_uname))			\
 		index = ufshcd_wb_get_query_index(hba);			\
-	pm_runtime_get_sync(hba->dev);					\
+	ufshcd_rpm_get_sync(hba);					\
 	ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,	\
 		QUERY_ATTR_IDN##_uname, index, 0, &value);		\
-	pm_runtime_put_sync(hba->dev);					\
+	ufshcd_rpm_put_sync(hba);					\
 	if (ret) {							\
 		ret = -EINVAL;						\
 		goto out;						\
@@ -1225,10 +1225,10 @@ static ssize_t dyn_cap_needed_attribute_show(struct device *dev,
 		goto out;
 	}
 
-	pm_runtime_get_sync(hba->dev);
+	ufshcd_rpm_get_sync(hba);
 	ret = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR,
 		QUERY_ATTR_IDN_DYN_CAP_NEEDED, lun, 0, &value);
-	pm_runtime_put_sync(hba->dev);
+	ufshcd_rpm_put_sync(hba);
 	if (ret) {
 		ret = -EINVAL;
 		goto out;
-- 
GitLab


From bb16b6d0cdfbec1667018fdc3cf88b0225bd4ad6 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 13 May 2021 10:12:29 -0700
Subject: [PATCH 0723/4878] UPSTREAM: scsi: ufs: core: Remove usfhcd_is_*_pm()
 macros

Remove these macros to make the UFS driver source code easier to read.
These macros were introduced by commit 57d104c153d3 ("ufs: add UFS power
management support").

Link: https://lore.kernel.org/r/20210513171229.7439-1-bvanassche@acm.org
Cc: Can Guo <cang@codeaurora.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 4c6cb9ed63dfd53002e76e716a31a77854630726)
Bug: 204438323
Change-Id: I6ad85279c2b6ebb82b60564f4d8d7f424845d677
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-hisi.c | 2 +-
 drivers/scsi/ufs/ufshcd.c   | 8 ++++----
 drivers/scsi/ufs/ufshcd.h   | 4 ----
 3 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index d374ebb80825e..5b147a48161b1 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -400,7 +400,7 @@ static int ufs_hisi_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 {
 	struct ufs_hisi_host *host = ufshcd_get_variant(hba);
 
-	if (ufshcd_is_runtime_pm(pm_op))
+	if (pm_op == UFS_RUNTIME_PM)
 		return 0;
 
 	if (host->in_suspend) {
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 77786f1b1348d..60003be7b104d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8761,8 +8761,8 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	enum uic_link_state req_link_state;
 
 	hba->pm_op_in_progress = true;
-	if (!ufshcd_is_shutdown_pm(pm_op)) {
-		pm_lvl = ufshcd_is_runtime_pm(pm_op) ?
+	if (pm_op != UFS_SHUTDOWN_PM) {
+		pm_lvl = pm_op == UFS_RUNTIME_PM ?
 			 hba->rpm_lvl : hba->spm_lvl;
 		req_dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(pm_lvl);
 		req_link_state = ufs_get_pm_lvl_to_link_pwr_state(pm_lvl);
@@ -8798,7 +8798,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 		goto enable_scaling;
 	}
 
-	if (ufshcd_is_runtime_pm(pm_op)) {
+	if (pm_op == UFS_RUNTIME_PM) {
 		if (ufshcd_can_autobkops_during_suspend(hba)) {
 			/*
 			 * The device is idle with no requests in the queue,
@@ -8828,7 +8828,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	flush_work(&hba->eeh_work);
 
 	if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) {
-		if (!ufshcd_is_runtime_pm(pm_op))
+		if (pm_op != UFS_RUNTIME_PM)
 			/* ensure that bkops is disabled */
 			ufshcd_disable_auto_bkops(hba);
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 92a8ed587930f..ec0febdf930f4 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -109,10 +109,6 @@ enum ufs_pm_op {
 	UFS_SHUTDOWN_PM,
 };
 
-#define ufshcd_is_runtime_pm(op) ((op) == UFS_RUNTIME_PM)
-#define ufshcd_is_system_pm(op) ((op) == UFS_SYSTEM_PM)
-#define ufshcd_is_shutdown_pm(op) ((op) == UFS_SHUTDOWN_PM)
-
 /* Host <-> Device UniPro Link state */
 enum uic_link_state {
 	UIC_LINK_OFF_STATE	= 0, /* Link powered down or disabled */
-- 
GitLab


From d7fc4b620416c7c68134f1636e0aa87606b41738 Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Thu, 13 May 2021 17:53:20 +0900
Subject: [PATCH 0724/4878] UPSTREAM: scsi: ufs: core: Remove redundant
 parenthesis

Remove unnecessary parenthesis in ufshcd_is_wb_flags() and
ufshcd_is_wbattrs().

Link: https://lore.kernel.org/r/1891546521.01620896402035.JavaMail.epsvc@epcpadp3
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 7f2b3c8bcb7f414c3f3c0a25c352238cbcdc890d)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ia7387f5c7f5e12e8cf692eff73030ba68ef3d903
---
 drivers/scsi/ufs/ufs-sysfs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 6fa9071a23c23..250568623b780 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -974,8 +974,8 @@ static const struct attribute_group ufs_sysfs_string_descriptors_group = {
 
 static inline bool ufshcd_is_wb_flags(enum flag_idn idn)
 {
-	return ((idn >= QUERY_FLAG_IDN_WB_EN) &&
-		(idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8));
+	return idn >= QUERY_FLAG_IDN_WB_EN &&
+		idn <= QUERY_FLAG_IDN_WB_BUFF_FLUSH_DURING_HIBERN8;
 }
 
 #define UFS_FLAG(_name, _uname)						\
@@ -1045,8 +1045,8 @@ static const struct attribute_group ufs_sysfs_flags_group = {
 
 static inline bool ufshcd_is_wb_attrs(enum attr_idn idn)
 {
-	return ((idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS) &&
-		(idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE));
+	return idn >= QUERY_ATTR_IDN_WB_FLUSH_STATUS &&
+		idn <= QUERY_ATTR_IDN_CURR_WB_BUFF_SIZE;
 }
 
 #define UFS_ATTRIBUTE(_name, _uname)					\
-- 
GitLab


From 8ebfd2371aa32eb1e08918688f752db64eae3e92 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sun, 9 May 2021 14:38:17 -0700
Subject: [PATCH 0725/4878] UPSTREAM: scsi: ufs: ufs-exynos: Move definitions
 from .h to .c

In the Linux kernel definitions of data structures should occur in .c
files. Hence move the exynos7_uic_attr definition from a .h into a .c
file. Additionally, declare exynos_ufs_drvs static. This patch fixes the
following two sparse warnings:

drivers/scsi/ufs/ufs-exynos.h:248:28: warning: symbol 'exynos_ufs_drvs' was not declared. Should it be static?
drivers/scsi/ufs/ufs-exynos.h:250:28: warning: symbol 'exynos7_uic_attr' was not declared. Should it be static?

Link: https://lore.kernel.org/r/20210509213817.4348-1-bvanassche@acm.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit b592d66235f5f7c2191cc0348468b343c17c3977)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ib0969ddff36ecae04e0917ae74ba73124eebf632
---
 drivers/scsi/ufs/ufs-exynos.c | 27 ++++++++++++++++++++++++++-
 drivers/scsi/ufs/ufs-exynos.h | 26 --------------------------
 2 files changed, 26 insertions(+), 27 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 3710f03212efe..a76f61cde01cc 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -107,6 +107,7 @@ enum {
 
 #define CNTR_DIV_VAL 40
 
+static struct exynos_ufs_drv_data exynos_ufs_drvs;
 static void exynos_ufs_auto_ctrl_hcc(struct exynos_ufs *ufs, bool en);
 static void exynos_ufs_ctrl_clkstop(struct exynos_ufs *ufs, bool en);
 
@@ -1231,8 +1232,32 @@ static int exynos_ufs_remove(struct platform_device *pdev)
 	return 0;
 }
 
-struct exynos_ufs_drv_data exynos_ufs_drvs = {
+static struct exynos_ufs_uic_attr exynos7_uic_attr = {
+	.tx_trailingclks		= 0x10,
+	.tx_dif_p_nsec			= 3000000,	/* unit: ns */
+	.tx_dif_n_nsec			= 1000000,	/* unit: ns */
+	.tx_high_z_cnt_nsec		= 20000,	/* unit: ns */
+	.tx_base_unit_nsec		= 100000,	/* unit: ns */
+	.tx_gran_unit_nsec		= 4000,		/* unit: ns */
+	.tx_sleep_cnt			= 1000,		/* unit: ns */
+	.tx_min_activatetime		= 0xa,
+	.rx_filler_enable		= 0x2,
+	.rx_dif_p_nsec			= 1000000,	/* unit: ns */
+	.rx_hibern8_wait_nsec		= 4000000,	/* unit: ns */
+	.rx_base_unit_nsec		= 100000,	/* unit: ns */
+	.rx_gran_unit_nsec		= 4000,		/* unit: ns */
+	.rx_sleep_cnt			= 1280,		/* unit: ns */
+	.rx_stall_cnt			= 320,		/* unit: ns */
+	.rx_hs_g1_sync_len_cap		= SYNC_LEN_COARSE(0xf),
+	.rx_hs_g2_sync_len_cap		= SYNC_LEN_COARSE(0xf),
+	.rx_hs_g3_sync_len_cap		= SYNC_LEN_COARSE(0xf),
+	.rx_hs_g1_prep_sync_len_cap	= PREP_LEN(0xf),
+	.rx_hs_g2_prep_sync_len_cap	= PREP_LEN(0xf),
+	.rx_hs_g3_prep_sync_len_cap	= PREP_LEN(0xf),
+	.pa_dbg_option_suite		= 0x30103,
+};
 
+static struct exynos_ufs_drv_data exynos_ufs_drvs = {
 	.compatible		= "samsung,exynos7-ufs",
 	.uic_attr		= &exynos7_uic_attr,
 	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index a5804e8eb3586..dadf4fd10dd80 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -245,30 +245,4 @@ static inline void exynos_ufs_disable_dbg_mode(struct ufs_hba *hba)
 	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_MODE), FALSE);
 }
 
-struct exynos_ufs_drv_data exynos_ufs_drvs;
-
-struct exynos_ufs_uic_attr exynos7_uic_attr = {
-	.tx_trailingclks		= 0x10,
-	.tx_dif_p_nsec			= 3000000,	/* unit: ns */
-	.tx_dif_n_nsec			= 1000000,	/* unit: ns */
-	.tx_high_z_cnt_nsec		= 20000,	/* unit: ns */
-	.tx_base_unit_nsec		= 100000,	/* unit: ns */
-	.tx_gran_unit_nsec		= 4000,		/* unit: ns */
-	.tx_sleep_cnt			= 1000,		/* unit: ns */
-	.tx_min_activatetime		= 0xa,
-	.rx_filler_enable		= 0x2,
-	.rx_dif_p_nsec			= 1000000,	/* unit: ns */
-	.rx_hibern8_wait_nsec		= 4000000,	/* unit: ns */
-	.rx_base_unit_nsec		= 100000,	/* unit: ns */
-	.rx_gran_unit_nsec		= 4000,		/* unit: ns */
-	.rx_sleep_cnt			= 1280,		/* unit: ns */
-	.rx_stall_cnt			= 320,		/* unit: ns */
-	.rx_hs_g1_sync_len_cap		= SYNC_LEN_COARSE(0xf),
-	.rx_hs_g2_sync_len_cap		= SYNC_LEN_COARSE(0xf),
-	.rx_hs_g3_sync_len_cap		= SYNC_LEN_COARSE(0xf),
-	.rx_hs_g1_prep_sync_len_cap	= PREP_LEN(0xf),
-	.rx_hs_g2_prep_sync_len_cap	= PREP_LEN(0xf),
-	.rx_hs_g3_prep_sync_len_cap	= PREP_LEN(0xf),
-	.pa_dbg_option_suite		= 0x30103,
-};
 #endif /* _UFS_EXYNOS_H_ */
-- 
GitLab


From a5f7bfc69f1ca7c1120b5ac350f4610f69393c6d Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 19 May 2021 13:20:58 -0700
Subject: [PATCH 0726/4878] UPSTREAM: scsi: ufs: Use designated initializers in
 ufs_pm_lvl_states[]

The comments in the enum ufs_pm_level definition are redundant. Remove the
comments from the ufs_pm_level enum and use designated initializers in the
ufs_pm_lvl_states[] definition instead.

Link: https://lore.kernel.org/r/20210519202058.12634-3-bvanassche@acm.org
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit e2ac7ab281c06cd367f6bffc4ba445a311a5f52a)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ifc3bc78b653785532d9da16012cd02e34f5619e8
---
 drivers/scsi/ufs/ufshcd.c | 14 +++++++-------
 drivers/scsi/ufs/ufshcd.h | 14 +++++++-------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 60003be7b104d..466a2f7ce6fa6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -164,17 +164,17 @@ enum {
 	((h)->eh_flags &= ~UFSHCD_EH_IN_PROGRESS)
 
 struct ufs_pm_lvl_states ufs_pm_lvl_states[] = {
-	{UFS_ACTIVE_PWR_MODE, UIC_LINK_ACTIVE_STATE},
-	{UFS_ACTIVE_PWR_MODE, UIC_LINK_HIBERN8_STATE},
-	{UFS_SLEEP_PWR_MODE, UIC_LINK_ACTIVE_STATE},
-	{UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE},
-	{UFS_POWERDOWN_PWR_MODE, UIC_LINK_HIBERN8_STATE},
-	{UFS_POWERDOWN_PWR_MODE, UIC_LINK_OFF_STATE},
+	[UFS_PM_LVL_0] = {UFS_ACTIVE_PWR_MODE, UIC_LINK_ACTIVE_STATE},
+	[UFS_PM_LVL_1] = {UFS_ACTIVE_PWR_MODE, UIC_LINK_HIBERN8_STATE},
+	[UFS_PM_LVL_2] = {UFS_SLEEP_PWR_MODE, UIC_LINK_ACTIVE_STATE},
+	[UFS_PM_LVL_3] = {UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE},
+	[UFS_PM_LVL_4] = {UFS_POWERDOWN_PWR_MODE, UIC_LINK_HIBERN8_STATE},
+	[UFS_PM_LVL_5] = {UFS_POWERDOWN_PWR_MODE, UIC_LINK_OFF_STATE},
 	/*
 	 * For DeepSleep, the link is first put in hibern8 and then off.
 	 * Leaving the link in hibern8 is not supported.
 	 */
-	{UFS_DEEPSLEEP_PWR_MODE, UIC_LINK_OFF_STATE},
+	[UFS_PM_LVL_6] = {UFS_DEEPSLEEP_PWR_MODE, UIC_LINK_OFF_STATE},
 };
 
 static inline enum ufs_dev_pwr_mode
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index ec0febdf930f4..c8a673e1b13cf 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -156,13 +156,13 @@ enum uic_link_state {
  * power off.
  */
 enum ufs_pm_level {
-	UFS_PM_LVL_0, /* UFS_ACTIVE_PWR_MODE, UIC_LINK_ACTIVE_STATE */
-	UFS_PM_LVL_1, /* UFS_ACTIVE_PWR_MODE, UIC_LINK_HIBERN8_STATE */
-	UFS_PM_LVL_2, /* UFS_SLEEP_PWR_MODE, UIC_LINK_ACTIVE_STATE */
-	UFS_PM_LVL_3, /* UFS_SLEEP_PWR_MODE, UIC_LINK_HIBERN8_STATE */
-	UFS_PM_LVL_4, /* UFS_POWERDOWN_PWR_MODE, UIC_LINK_HIBERN8_STATE */
-	UFS_PM_LVL_5, /* UFS_POWERDOWN_PWR_MODE, UIC_LINK_OFF_STATE */
-	UFS_PM_LVL_6, /* UFS_DEEPSLEEP_PWR_MODE, UIC_LINK_OFF_STATE */
+	UFS_PM_LVL_0,
+	UFS_PM_LVL_1,
+	UFS_PM_LVL_2,
+	UFS_PM_LVL_3,
+	UFS_PM_LVL_4,
+	UFS_PM_LVL_5,
+	UFS_PM_LVL_6,
 	UFS_PM_LVL_MAX
 };
 
-- 
GitLab


From 8685c2181bc702f4da28a3dbe548ef31c287ead8 Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Tue, 18 May 2021 21:12:17 +0900
Subject: [PATCH 0727/4878] UPSTREAM: scsi: ufs: core: Clean up whitespace

checkpatch reports the following errors:

	ERROR: space prohibited before that ',' (ctx:WxW)
	#945: FILE: drivers/scsi/ufs/ufshcd.h:945:
	+int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
	                                  ^

	ERROR: space prohibited before that ',' (ctx:WxW)
	#945: FILE: drivers/scsi/ufs/ufshcd.h:945:
	+int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
	                                                   ^
Remove unnecessary whitespace in ufshcd.h.

Link: https://lore.kernel.org/r/2038148563.21621340102306.JavaMail.epsvc@epcpadp3
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ecd7beb37871827c449842ec2c9db106ee5e82f6)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ib9ffd7b7ee73d727e437042e869c627acaca0907
---
 drivers/scsi/ufs/ufshcd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index c8a673e1b13cf..ca8969539e9df 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1039,7 +1039,7 @@ static inline void ufshcd_rmwl(struct ufs_hba *hba, u32 mask, u32 val, u32 reg)
 int ufshcd_alloc_host(struct device *, struct ufs_hba **);
 void ufshcd_dealloc_host(struct ufs_hba *);
 int ufshcd_hba_enable(struct ufs_hba *hba);
-int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
+int ufshcd_init(struct ufs_hba *, void __iomem *, unsigned int);
 int ufshcd_link_recovery(struct ufs_hba *hba);
 int ufshcd_make_hba_operational(struct ufs_hba *hba);
 void ufshcd_remove(struct ufs_hba *);
-- 
GitLab


From 625dd5cd93c95c27ee3634d519523e65d4b2c56a Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 5 May 2021 20:01:04 +0100
Subject: [PATCH 0728/4878] UPSTREAM: scsi: ufs: ufs-exynos: Make a const array
 static, makes object smaller

Don't populate the const array granularity_tbl on the stack but instead
make it static. Makes the object code smaller by 190 bytes:

Before:
   text    data     bss     dec     hex filename
  25563    6908       0   32471    7ed7 ./drivers/scsi/ufs/ufs-exynos.o

After:
   text    data     bss     dec     hex filename
  25213    7068       0   32281    7e19 ./drivers/scsi/ufs/ufs-exynos.o

(gcc version 10.3.0)

Link: https://lore.kernel.org/r/20210505190104.70112-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 5ac3c649f11cb457dd40f6dde58cb029181c2700)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ie9b8b6a72d28ff3405dc03ca242ab5eb09dd8427
---
 drivers/scsi/ufs/ufs-exynos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index a76f61cde01cc..9cdedbff5b884 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1049,7 +1049,7 @@ static void exynos_ufs_pre_hibern8(struct ufs_hba *hba, u8 enter)
 		exynos_ufs_ungate_clks(ufs);
 
 		if (ufs->opts & EXYNOS_UFS_OPT_USE_SW_HIBERN8_TIMER) {
-			const unsigned int granularity_tbl[] = {
+			static const unsigned int granularity_tbl[] = {
 				1, 4, 8, 16, 32, 100
 			};
 			int h8_time = attr->pa_hibern8time *
-- 
GitLab


From 7b209ee1440fe6ea4a2a0306b000692b2b4c866e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 19 May 2021 13:20:57 -0700
Subject: [PATCH 0729/4878] UPSTREAM: scsi: ufs: Suppress false positive
 unhandled interrupt messages

From ufshcd_transfer_req_compl():

    Resetting interrupt aggregation counters first and reading the
    DOOR_BELL afterward allows us to handle all the completed requests.  In
    order to prevent other interrupts starvation the DB is read once after
    reset. The down side of this solution is the possibility of false
    interrupt if device completes another request after resetting
    aggregation and before reading the DB.

Prevent that ufshcd_intr() reports a false positive "Unhandled interrupt"
message if the above scenario is triggered.

Link: https://lore.kernel.org/r/20210519202058.12634-2-bvanassche@acm.org
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Suggested-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 40d2fd05ecc2b63d1bd8f6686f09941afe85edfe)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Icda80ad1e321b1053eb4e00a42285f577a5acd20
---
 drivers/scsi/ufs/ufshcd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 466a2f7ce6fa6..627d918210d67 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6532,7 +6532,8 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba)
 	}
 
 	if (enabled_intr_status && retval == IRQ_NONE &&
-				!ufshcd_eh_in_progress(hba)) {
+	    (!(enabled_intr_status & UTP_TRANSFER_REQ_COMPL) ||
+	     hba->outstanding_reqs) && !ufshcd_eh_in_progress(hba)) {
 		dev_err(hba->dev, "%s: Unhandled interrupt 0x%08x (0x%08x, 0x%08x)\n",
 					__func__,
 					intr_status,
-- 
GitLab


From b49194c17f965ab681c4dc13e9c90a2bb57acac0 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 27 Apr 2021 10:30:12 +0200
Subject: [PATCH 0730/4878] UPSTREAM: scsi: core: Stop using DRIVER_ERROR

Return the actual error code in __scsi_execute() (which, according to the
documentation, should have happened anyway).  And audit all callers to cope
with negative return values from __scsi_execute() and friends.

[mkp: resolve conflict and return bool]

Link: https://lore.kernel.org/r/20210427083046.31620-7-hare@suse.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I8c5cc74bbbb0f7d616f36af6db6affbbd00c4ee4
[ bvanassche: only modify the UFS driver ]
(cherry picked from commit ced202f7bd78eb6a79c441a8b217e0f3d38bccfc)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 627d918210d67..46213f9ca152f 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8593,7 +8593,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 		sdev_printk(KERN_WARNING, sdp,
 			    "START_STOP failed for power mode: %d, result %x\n",
 			    pwr_mode, ret);
-		if (driver_byte(ret) == DRIVER_SENSE)
+		if (ret > 0 && driver_byte(ret) == DRIVER_SENSE)
 			scsi_print_sense_hdr(sdp, NULL, &sshdr);
 	}
 
-- 
GitLab


From 7c5a14d4b09369f49343872ffad92988d6aba7ab Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 27 Apr 2021 10:30:15 +0200
Subject: [PATCH 0731/4878] UPSTREAM: scsi: core: Kill DRIVER_SENSE

Replace the check for DRIVER_SENSE with a check for
scsi_status_is_check_condition().

Audit all callsites to ensure the SAM status is set correctly. For
backwards compability move the DRIVER_SENSE definition to sg.h, and update
sg, bsg, and scsi_ioctl to set the DRIVER_SENSE driver_status whenever
SAM_STAT_CHECK_CONDITION is present.

[mkp: fix zeroday srp warning]

Link: https://lore.kernel.org/r/20210427083046.31620-10-hare@suse.de
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I05183efdcedfcc89fd694205b7f38d16fe5ad7d2
[ bvanassche: only modify the UFS driver ]
(cherry picked from commit 464a00c9e0ad45e3f42ff6ea705491a356df818e)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 46213f9ca152f..95330d07a7f0e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8593,7 +8593,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 		sdev_printk(KERN_WARNING, sdp,
 			    "START_STOP failed for power mode: %d, result %x\n",
 			    pwr_mode, ret);
-		if (ret > 0 && driver_byte(ret) == DRIVER_SENSE)
+		if (ret > 0 && scsi_sense_valid(&sshdr))
 			scsi_print_sense_hdr(sdp, NULL, &sshdr);
 	}
 
-- 
GitLab


From b5476a65623991eee1cdc4887fbcd3a9f1cdb155 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 31 May 2021 18:31:22 +0200
Subject: [PATCH 0732/4878] UPSTREAM: scsi: ufs: Fix a kernel-doc related
 formatting issue

Fix the following W=1 kernel build warning:

drivers/scsi/ufs/ufshcd.c:9773: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

[mkp: upcase abbreviations]

Link: https://lore.kernel.org/r/20210531163122.451375-1-huobean@gmail.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit f6b414294224bca523e63c9b3d09a2dabe981f23)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: If4050d4634c3da09b889757c64317166d901daeb
---
 drivers/scsi/ufs/ufshcd.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 95330d07a7f0e..882406686f370 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9765,10 +9765,7 @@ static const struct dev_pm_ops ufs_rpmb_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(NULL, ufshcd_rpmb_resume)
 };
 
-/**
- * Describes the ufs rpmb wlun.
- * Used only to send uac.
- */
+/* ufs_rpmb_wlun_template - Describes UFS RPMB WLUN. Used only to send UAC. */
 static struct scsi_driver ufs_rpmb_wlun_template = {
 	.gendrv = {
 		.name = "ufs_rpmb_wlun",
-- 
GitLab


From 43b8c48a248d8a60ca476de867454ab0ffaffb98 Mon Sep 17 00:00:00 2001
From: Avri Altman <avri.altman@wdc.com>
Date: Thu, 3 Jun 2021 15:22:09 +0300
Subject: [PATCH 0733/4878] UPSTREAM: scsi: ufs: core: Remove irrelevant
 reference to non-existing doc

Remove all references to the description of __ufshcd_wl_{suspend,resume} as
no such description exist.

Fixes: b294ff3e3449 (scsi: ufs: core: Enable power management for wlun)
Link: https://lore.kernel.org/r/20210603122209.635799-1-avri.altman@wdc.com
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 8b1afb7ab0dbbb8f9186e94ecded6660da1161ae)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I73d9671a1f3e17345632387826a4e6f0878c68b7
---
 drivers/scsi/ufs/ufshcd.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 882406686f370..96be1794bed22 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9116,7 +9116,6 @@ static void ufshcd_wl_shutdown(struct device *dev)
  *
  * This function will put disable irqs, turn off clocks
  * and set vreg and hba-vreg in lpm mode.
- * Also check the description of __ufshcd_wl_suspend().
  */
 static int ufshcd_suspend(struct ufs_hba *hba)
 {
@@ -9152,7 +9151,6 @@ static int ufshcd_suspend(struct ufs_hba *hba)
  *
  * This function basically turns on the regulators, clocks and
  * irqs of the hba.
- * Also check the description of __ufshcd_wl_resume().
  *
  * Returns 0 for success and non-zero for failure
  */
@@ -9190,7 +9188,6 @@ out:
  * @hba: per adapter instance
  *
  * Check the description of ufshcd_suspend() function for more details.
- * Also check the description of __ufshcd_wl_suspend().
  *
  * Returns 0 for success and non-zero for failure
  */
@@ -9242,7 +9239,6 @@ EXPORT_SYMBOL(ufshcd_system_resume);
  * @hba: per adapter instance
  *
  * Check the description of ufshcd_suspend() function for more details.
- * Also check the description of __ufshcd_wl_suspend().
  *
  * Returns 0 for success and non-zero for failure
  */
-- 
GitLab


From e4a07c01096b765c23a6e219a29ab42f26382ea9 Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Fri, 4 Jun 2021 11:40:38 +0900
Subject: [PATCH 0734/4878] UPSTREAM: scsi: ufs: core: Remove repeated word in
 comment

Remove repeated word "for" in comment.

Link: https://lore.kernel.org/r/1891546521.01622777101796.JavaMail.epsvc@epcpadp3
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 32424902331b35f032fd6152bd4e6e1180329e7d)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I829c1f1948149358291827ae01ec45eda66f4515
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 96be1794bed22..3d0a49340aeba 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2861,7 +2861,7 @@ ufshcd_clear_cmd(struct ufs_hba *hba, int tag)
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
 	/*
-	 * wait for for h/w to clear corresponding bit in door-bell.
+	 * wait for h/w to clear corresponding bit in door-bell.
 	 * max. wait is 1 sec.
 	 */
 	err = ufshcd_wait_for_register(hba,
-- 
GitLab


From 740f7e84045b7b97ef22708171390523f15c07bf Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 31 May 2021 12:43:05 +0200
Subject: [PATCH 0735/4878] UPSTREAM: scsi: ufs: core: Clean up
 ufshcd_add_command_trace()

To consistent with trace event print, convert the value of the variable
'lba' from a block layer sector address to a logical block adress.

Link: https://lore.kernel.org/r/20210531104308.391842-2-huobean@gmail.com
Suggested-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 04c073feb1d7b396992b3c725101872d5fc104b6)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I5e16c02f8dd9984f92dd4237333512b0db484c73
---
 drivers/scsi/ufs/ufshcd.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3d0a49340aeba..97eb2965f5287 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -26,6 +26,7 @@
 #include "ufshcd-crypto.h"
 #include "ufshpb.h"
 #include <asm/unaligned.h>
+#include "../sd.h"
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/ufs.h>
@@ -380,7 +381,7 @@ static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
 static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 				     enum ufs_trace_str_t str_t)
 {
-	sector_t lba = -1;
+	u64 lba = -1;
 	u8 opcode = 0, group_id = 0;
 	u32 intr, doorbell;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
@@ -398,22 +399,23 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 		/* trace UPIU also */
 		ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
 		opcode = cmd->cmnd[0];
+		lba = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request));
+
 		if ((opcode == READ_10) || (opcode == WRITE_10)) {
 			/*
 			 * Currently we only fully trace read(10) and write(10)
 			 * commands
 			 */
-			if (cmd->request && cmd->request->bio)
-				lba = cmd->request->bio->bi_iter.bi_sector;
 			transfer_len = be32_to_cpu(
 				lrbp->ucd_req_ptr->sc.exp_data_transfer_len);
 			if (opcode == WRITE_10)
 				group_id = lrbp->cmd->cmnd[6];
 		} else if (opcode == UNMAP) {
-			if (cmd->request) {
-				lba = scsi_get_lba(cmd);
-				transfer_len = blk_rq_bytes(cmd->request);
-			}
+			/*
+			 * The number of Bytes to be unmapped beginning with the
+			 * lba.
+			 */
+			transfer_len = blk_rq_bytes(cmd->request);
 		}
 	}
 
-- 
GitLab


From 5b7e611c48cbe90d1d7dd1b4d144d11e273d1bc5 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 31 May 2021 12:43:06 +0200
Subject: [PATCH 0736/4878] UPSTREAM: scsi: ufs: core: Let UPIU completion
 trace print RSP UPIU header
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The current UPIU completion event trace still prints the COMMAND UPIU
header, rather than the RSP UPIU header. This makes UPIU command trace
useless in problem shooting in case we receive a trace log from the
customer/field.

There are two important fields in RSP UPIU:

 1. The response field, which indicates the UFS defined overall success or
    failure of the series of Command, Data and RESPONSE UPIU’s that make up
    the execution of a task.

2. The Status field, which contains the command set specific status for a
    specific command issued by the initiator device.

Before this commit, the UPIU paired trace events:

ufshcd_upiu: send_req: fe3b0000.ufs: HDR:01 20 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00
ufshcd_upiu: complete_rsp: fe3b0000.ufs: HDR:01 20 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00

After this commit:

ufshcd_upiu: send_req: fe3b0000.ufs: HDR:01 20 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00
ufshcd_upiu: complete_rsp: fe3b0000.ufs: HDR:21 00 00 1c 00 00 00 00 00 00 00 00, CDB:3b e1 00 00 00 00 00 00 30 00 00 00 00 00 00 00

Link: https://lore.kernel.org/r/20210531104308.391842-3-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 89ac2c3b283508744de9bc2fba2b57a523990db7)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I4c6a8c6575c5e19e8343af048bbbd578128788b3
---
 drivers/scsi/ufs/ufshcd.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 97eb2965f5287..2c2afab7f8e2d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -304,11 +304,17 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 				      enum ufs_trace_str_t str_t)
 {
 	struct utp_upiu_req *rq = hba->lrb[tag].ucd_req_ptr;
+	struct utp_upiu_header *header;
 
 	if (!trace_ufshcd_upiu_enabled())
 		return;
 
-	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb,
+	if (str_t == UFS_CMD_SEND)
+		header = &rq->header;
+	else
+		header = &hba->lrb[tag].ucd_rsp_ptr->header;
+
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, header, &rq->sc.cdb,
 			  UFS_TSF_CDB);
 }
 
-- 
GitLab


From f5c43ddb4181d7bd7ddbf0e1966837c11d6aa601 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 31 May 2021 12:43:07 +0200
Subject: [PATCH 0737/4878] UPSTREAM: scsi: ufs: core: Capture command trace
 only for the cmd != NULL case
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For the query request, we already have query_trace, but in
ufshcd_send_command(), there will add two more redundant traces. Since
lrbp->cmd is NULL in the query request, the two trace events below provide
nothing except the tag and DB. Instead of letting them take up the limited
trace ring buffer, it’s better not to print these traces in case of cmd ==
NULL.

ufshcd_command: send_req: ff3b0000.ufs: tag: 28, DB: 0x0, size: -1, IS: 0, LBA: 18446744073709551615, opcode: 0x0 (0x0), group_id: 0x0
ufshcd_command: dev_complete: ff3b0000.ufs: tag: 28, DB: 0x0, size: -1, IS: 0, LBA: 18446744073709551615, opcode: 0x0 (0x0), group_id: 0x0

Link: https://lore.kernel.org/r/20210531104308.391842-4-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 44b5de363524a1b9b0c9a42502f3a9e1dca9c6c3)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I3ebce009d5499a377daac09218c1f156ce0d8ad5
---
 drivers/scsi/ufs/ufshcd.c | 44 +++++++++++++++++++--------------------
 1 file changed, 21 insertions(+), 23 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2c2afab7f8e2d..f521872a72315 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -394,35 +394,33 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 	struct scsi_cmnd *cmd = lrbp->cmd;
 	int transfer_len = -1;
 
+	if (!cmd)
+		return;
+
 	if (!trace_ufshcd_command_enabled()) {
 		/* trace UPIU W/O tracing command */
-		if (cmd)
-			ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
+		ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
 		return;
 	}
 
-	if (cmd) { /* data phase exists */
-		/* trace UPIU also */
-		ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
-		opcode = cmd->cmnd[0];
-		lba = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request));
+	/* trace UPIU also */
+	ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
+	opcode = cmd->cmnd[0];
+	lba = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request));
 
-		if ((opcode == READ_10) || (opcode == WRITE_10)) {
-			/*
-			 * Currently we only fully trace read(10) and write(10)
-			 * commands
-			 */
-			transfer_len = be32_to_cpu(
-				lrbp->ucd_req_ptr->sc.exp_data_transfer_len);
-			if (opcode == WRITE_10)
-				group_id = lrbp->cmd->cmnd[6];
-		} else if (opcode == UNMAP) {
-			/*
-			 * The number of Bytes to be unmapped beginning with the
-			 * lba.
-			 */
-			transfer_len = blk_rq_bytes(cmd->request);
-		}
+	if (opcode == READ_10 || opcode == WRITE_10) {
+		/*
+		 * Currently we only fully trace read(10) and write(10) commands
+		 */
+		transfer_len =
+		       be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len);
+		if (opcode == WRITE_10)
+			group_id = lrbp->cmd->cmnd[6];
+	} else if (opcode == UNMAP) {
+		/*
+		 * The number of Bytes to be unmapped beginning with the lba.
+		 */
+		transfer_len = blk_rq_bytes(cmd->request);
 	}
 
 	intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
-- 
GitLab


From 85cca5fada09970a49e2dbf9c5a1bd9369ad8086 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 31 May 2021 12:43:08 +0200
Subject: [PATCH 0738/4878] UPSTREAM: scsi: ufs: core: Use UPIU query trace in
 devman_upiu_cmd()

Since devman_upiu_cmd() is not COMMAND UPIU, and doesn't have CDB, it is
better to use UPIU query trace, which provides more helpful information for
issue troubleshooting.

Link: https://lore.kernel.org/r/20210531104308.391842-5-huobean@gmail.com
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 105424895c02858922e1bf27ef01127e12caca9a)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I85197e304e711b1b749509f41a5747a96d4e5c70
---
 drivers/scsi/ufs/ufshcd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index f521872a72315..85d06da4f0b89 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6774,6 +6774,7 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 
 	hba->dev_cmd.complete = &wait;
 
+	ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr);
 	/* Make sure descriptors are ready before ringing the doorbell */
 	wmb();
 
@@ -6803,6 +6804,8 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 			err = -EINVAL;
 		}
 	}
+	ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP,
+				    (struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
 
 	blk_put_request(req);
 out_unlock:
-- 
GitLab


From 71b002bdae6513cab01b7510add13cd8e0f73fdf Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Thu, 17 Jun 2021 11:13:26 +0800
Subject: [PATCH 0739/4878] UPSTREAM: scsi: ufs: Fix build warning without
 CONFIG_PM
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

drivers/scsi/ufs/ufshcd.c:9770:12: warning: ‘ufshcd_rpmb_resume’ defined but not used [-Wunused-function]
 static int ufshcd_rpmb_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~
drivers/scsi/ufs/ufshcd.c:9037:12: warning: ‘ufshcd_wl_runtime_resume’ defined but not used [-Wunused-function]
 static int ufshcd_wl_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ufs/ufshcd.c:9017:12: warning: ‘ufshcd_wl_runtime_suspend’ defined but not used [-Wunused-function]
 static int ufshcd_wl_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~~

Move it into #ifdef block to fix this.

Link: https://lore.kernel.org/r/20210617031326.36908-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 75d645a61cf9c960b20650914386f20f993f81bc)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I3aa95339887bc0d6db1014ec8748668eed445152
---
 drivers/scsi/ufs/ufshcd.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 85d06da4f0b89..781e58b486385 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8912,6 +8912,7 @@ out:
 	return ret;
 }
 
+#ifdef CONFIG_PM
 static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 {
 	int ret;
@@ -9040,6 +9041,7 @@ static int ufshcd_wl_runtime_resume(struct device *dev)
 
 	return ret;
 }
+#endif
 
 #ifdef CONFIG_PM_SLEEP
 static int ufshcd_wl_suspend(struct device *dev)
@@ -9756,6 +9758,7 @@ static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int ufshcd_rpmb_resume(struct device *dev)
 {
 	struct ufs_hba *hba = wlun_dev_to_hba(dev);
@@ -9764,6 +9767,7 @@ static int ufshcd_rpmb_resume(struct device *dev)
 		ufshcd_clear_rpmb_uac(hba);
 	return 0;
 }
+#endif
 
 static const struct dev_pm_ops ufs_rpmb_pm_ops = {
 	SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
-- 
GitLab


From c577744552af438f294959a325d08294f16f0ffd Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Mon, 28 Jun 2021 14:58:01 +0900
Subject: [PATCH 0740/4878] UPSTREAM: scsi: ufs: Refactor
 ufshcd_is_intr_aggr_allowed()

Simplify if-else statement to return statement and remove code related to
CONFIG_SCSI_UFS_DWC that is not in use.

Link: https://lore.kernel.org/r/1891546521.01624860001810.JavaMail.epsvc@epcpadp3
Cc: Joao Pinto <jpinto@synopsys.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 1c0810e79cb3d2c46bb8f2a3e98609de1f009f3e)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ie27d734ac5ee6b737ace355e5a095bc3acec9ed2
---
 drivers/scsi/ufs/ufshcd.h | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index ca8969539e9df..65f31f54ceff0 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -975,16 +975,8 @@ static inline bool ufshcd_is_rpm_autosuspend_allowed(struct ufs_hba *hba)
 
 static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
 {
-/* DWC UFS Core has the Interrupt aggregation feature but is not detectable*/
-#ifndef CONFIG_SCSI_UFS_DWC
-	if ((hba->caps & UFSHCD_CAP_INTR_AGGR) &&
-	    !(hba->quirks & UFSHCD_QUIRK_BROKEN_INTR_AGGR))
-		return true;
-	else
-		return false;
-#else
-return true;
-#endif
+	return (hba->caps & UFSHCD_CAP_INTR_AGGR) &&
+		!(hba->quirks & UFSHCD_QUIRK_BROKEN_INTR_AGGR);
 }
 
 static inline bool ufshcd_can_aggressive_pc(struct ufs_hba *hba)
-- 
GitLab


From ed0d82c712cdbdf7acb039eabf8d2735448d5141 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Tue, 8 Jun 2021 23:39:29 -0400
Subject: [PATCH 0741/4878] UPSTREAM: scsi: ufs: core: Use scsi_get_lba() to
 get LBA

Use the scsi_get_lba() helper instead of a function internal to the
SCSI disk driver. Remove #include "sd.h".

Link: https://lore.kernel.org/r/20210609033929.3815-16-martin.petersen@oracle.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Message-Id: <20210609033929.3815-16-martin.petersen@oracle.com>
(cherry picked from commit 54815088859fa766c7879a06ee028e0cee4f589e)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ia0f0e62e7e1596065bd6011017bc6c4d5b28ca80
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 781e58b486385..9113e175930a0 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -26,7 +26,6 @@
 #include "ufshcd-crypto.h"
 #include "ufshpb.h"
 #include <asm/unaligned.h>
-#include "../sd.h"
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/ufs.h>
@@ -406,7 +405,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 	/* trace UPIU also */
 	ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
 	opcode = cmd->cmnd[0];
-	lba = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request));
+	lba = scsi_get_lba(cmd);
 
 	if (opcode == READ_10 || opcode == WRITE_10) {
 		/*
-- 
GitLab


From bc35e28601ec681d2e432cd0079171f28d18e3ff Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:23 -0700
Subject: [PATCH 0742/4878] UPSTREAM: scsi: ufs: Reduce power management code
 duplication

Move the dev_get_drvdata() calls into the ufshcd_{system,runtime}_*()
functions. Remove ufshcd_runtime_idle() since it is empty. This patch does
not change any functionality.

Link: https://lore.kernel.org/r/20210722033439.26550-3-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit f1ecbe1e54d5709b839e71f48ab26aab42cb7b82)
Bug: 204438323
Change-Id: Id3b811e95ba73daab642d68049b75cd1e96f85a2
Signed-off-by: Bart Van Assche <bvanassche@google.com>)
---
 android/abi_gki_aarch64_db845c        |  5 ---
 drivers/scsi/ufs/cdns-pltfrm.c        |  7 ++--
 drivers/scsi/ufs/tc-dwc-g210-pci.c    | 32 ++----------------
 drivers/scsi/ufs/tc-dwc-g210-pltfrm.c |  7 ++--
 drivers/scsi/ufs/ufs-exynos.c         |  7 ++--
 drivers/scsi/ufs/ufs-hisi.c           |  7 ++--
 drivers/scsi/ufs/ufs-mediatek.c       |  7 ++--
 drivers/scsi/ufs/ufs-qcom.c           |  7 ++--
 drivers/scsi/ufs/ufshcd-pci.c         | 48 ++-------------------------
 drivers/scsi/ufs/ufshcd-pltfrm.c      | 47 --------------------------
 drivers/scsi/ufs/ufshcd-pltfrm.h      | 18 ----------
 drivers/scsi/ufs/ufshcd.c             | 41 ++++++++++++-----------
 drivers/scsi/ufs/ufshcd.h             |  9 +++--
 13 files changed, 41 insertions(+), 201 deletions(-)

diff --git a/android/abi_gki_aarch64_db845c b/android/abi_gki_aarch64_db845c
index 7e7d1c6734ea4..6b34996dcef89 100644
--- a/android/abi_gki_aarch64_db845c
+++ b/android/abi_gki_aarch64_db845c
@@ -1678,12 +1678,7 @@
   ufshcd_get_local_unipro_ver
   ufshcd_get_pwr_dev_param
   ufshcd_pltfrm_init
-  ufshcd_pltfrm_resume
-  ufshcd_pltfrm_runtime_idle
-  ufshcd_pltfrm_runtime_resume
-  ufshcd_pltfrm_runtime_suspend
   ufshcd_pltfrm_shutdown
-  ufshcd_pltfrm_suspend
   ufshcd_remove
   ufshcd_uic_hibern8_enter
   ufshcd_uic_hibern8_exit
diff --git a/drivers/scsi/ufs/cdns-pltfrm.c b/drivers/scsi/ufs/cdns-pltfrm.c
index 908ff39c48566..7da8be2f35c42 100644
--- a/drivers/scsi/ufs/cdns-pltfrm.c
+++ b/drivers/scsi/ufs/cdns-pltfrm.c
@@ -318,11 +318,8 @@ static int cdns_ufs_pltfrm_remove(struct platform_device *pdev)
 }
 
 static const struct dev_pm_ops cdns_ufs_dev_pm_ops = {
-	.suspend         = ufshcd_pltfrm_suspend,
-	.resume          = ufshcd_pltfrm_resume,
-	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
-	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 	.prepare	 = ufshcd_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
diff --git a/drivers/scsi/ufs/tc-dwc-g210-pci.c b/drivers/scsi/ufs/tc-dwc-g210-pci.c
index ec4589afbc130..679289e1a78e6 100644
--- a/drivers/scsi/ufs/tc-dwc-g210-pci.c
+++ b/drivers/scsi/ufs/tc-dwc-g210-pci.c
@@ -23,31 +23,6 @@ static int tc_type = TC_G210_INV;
 module_param(tc_type, int, 0);
 MODULE_PARM_DESC(tc_type, "Test Chip Type (20 = 20-bit, 40 = 40-bit)");
 
-static int tc_dwc_g210_pci_suspend(struct device *dev)
-{
-	return ufshcd_system_suspend(dev_get_drvdata(dev));
-}
-
-static int tc_dwc_g210_pci_resume(struct device *dev)
-{
-	return ufshcd_system_resume(dev_get_drvdata(dev));
-}
-
-static int tc_dwc_g210_pci_runtime_suspend(struct device *dev)
-{
-	return ufshcd_runtime_suspend(dev_get_drvdata(dev));
-}
-
-static int tc_dwc_g210_pci_runtime_resume(struct device *dev)
-{
-	return ufshcd_runtime_resume(dev_get_drvdata(dev));
-}
-
-static int tc_dwc_g210_pci_runtime_idle(struct device *dev)
-{
-	return ufshcd_runtime_idle(dev_get_drvdata(dev));
-}
-
 /*
  * struct ufs_hba_dwc_vops - UFS DWC specific variant operations
  */
@@ -143,11 +118,8 @@ tc_dwc_g210_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 }
 
 static const struct dev_pm_ops tc_dwc_g210_pci_pm_ops = {
-	.suspend	= tc_dwc_g210_pci_suspend,
-	.resume		= tc_dwc_g210_pci_resume,
-	.runtime_suspend = tc_dwc_g210_pci_runtime_suspend,
-	.runtime_resume  = tc_dwc_g210_pci_runtime_resume,
-	.runtime_idle    = tc_dwc_g210_pci_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 	.prepare	 = ufshcd_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
diff --git a/drivers/scsi/ufs/tc-dwc-g210-pltfrm.c b/drivers/scsi/ufs/tc-dwc-g210-pltfrm.c
index a1268e4f44d6f..783ec43efa789 100644
--- a/drivers/scsi/ufs/tc-dwc-g210-pltfrm.c
+++ b/drivers/scsi/ufs/tc-dwc-g210-pltfrm.c
@@ -84,11 +84,8 @@ static int tc_dwc_g210_pltfm_remove(struct platform_device *pdev)
 }
 
 static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = {
-	.suspend	= ufshcd_pltfrm_suspend,
-	.resume		= ufshcd_pltfrm_resume,
-	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
-	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 };
 
 static struct platform_driver tc_dwc_g210_pltfm_driver = {
diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 9cdedbff5b884..bb2dd79a1bcd6 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1287,11 +1287,8 @@ static const struct of_device_id exynos_ufs_of_match[] = {
 };
 
 static const struct dev_pm_ops exynos_ufs_pm_ops = {
-	.suspend	= ufshcd_pltfrm_suspend,
-	.resume		= ufshcd_pltfrm_resume,
-	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
-	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 	.prepare	 = ufshcd_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 5b147a48161b1..6b706de8354bf 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -572,11 +572,8 @@ static int ufs_hisi_remove(struct platform_device *pdev)
 }
 
 static const struct dev_pm_ops ufs_hisi_pm_ops = {
-	.suspend	= ufshcd_pltfrm_suspend,
-	.resume		= ufshcd_pltfrm_resume,
-	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
-	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 	.prepare	 = ufshcd_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d2c251628a058..80b3545dd17d6 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -1140,11 +1140,8 @@ static int ufs_mtk_remove(struct platform_device *pdev)
 }
 
 static const struct dev_pm_ops ufs_mtk_pm_ops = {
-	.suspend         = ufshcd_pltfrm_suspend,
-	.resume          = ufshcd_pltfrm_resume,
-	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
-	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 	.prepare	 = ufshcd_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 7f6c9a37a01ec..a07cc1f81daef 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1556,11 +1556,8 @@ MODULE_DEVICE_TABLE(acpi, ufs_qcom_acpi_match);
 #endif
 
 static const struct dev_pm_ops ufs_qcom_pm_ops = {
-	.suspend	= ufshcd_pltfrm_suspend,
-	.resume		= ufshcd_pltfrm_resume,
-	.runtime_suspend = ufshcd_pltfrm_runtime_suspend,
-	.runtime_resume  = ufshcd_pltfrm_runtime_resume,
-	.runtime_idle    = ufshcd_pltfrm_runtime_idle,
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 	.prepare	 = ufshcd_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index e6c334bfb4c2c..b3bcc5c882da1 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -385,48 +385,6 @@ static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
 	.device_reset		= ufs_intel_device_reset,
 };
 
-#ifdef CONFIG_PM_SLEEP
-/**
- * ufshcd_pci_suspend - suspend power management function
- * @dev: pointer to PCI device handle
- *
- * Returns 0 if successful
- * Returns non-zero otherwise
- */
-static int ufshcd_pci_suspend(struct device *dev)
-{
-	return ufshcd_system_suspend(dev_get_drvdata(dev));
-}
-
-/**
- * ufshcd_pci_resume - resume power management function
- * @dev: pointer to PCI device handle
- *
- * Returns 0 if successful
- * Returns non-zero otherwise
- */
-static int ufshcd_pci_resume(struct device *dev)
-{
-	return ufshcd_system_resume(dev_get_drvdata(dev));
-}
-
-#endif /* !CONFIG_PM_SLEEP */
-
-#ifdef CONFIG_PM
-static int ufshcd_pci_runtime_suspend(struct device *dev)
-{
-	return ufshcd_runtime_suspend(dev_get_drvdata(dev));
-}
-static int ufshcd_pci_runtime_resume(struct device *dev)
-{
-	return ufshcd_runtime_resume(dev_get_drvdata(dev));
-}
-static int ufshcd_pci_runtime_idle(struct device *dev)
-{
-	return ufshcd_runtime_idle(dev_get_drvdata(dev));
-}
-#endif /* !CONFIG_PM */
-
 /**
  * ufshcd_pci_shutdown - main function to put the controller in reset state
  * @pdev: pointer to PCI device handle
@@ -510,10 +468,8 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 }
 
 static const struct dev_pm_ops ufshcd_pci_pm_ops = {
-	SET_RUNTIME_PM_OPS(ufshcd_pci_runtime_suspend,
-			   ufshcd_pci_runtime_resume,
-			   ufshcd_pci_runtime_idle)
-	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_pci_suspend, ufshcd_pci_resume)
+	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
+	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 #ifdef CONFIG_PM_SLEEP
 	.prepare	= ufshcd_suspend_prepare,
 	.complete	= ufshcd_resume_complete,
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 298e22ef907e8..8859c13f4e091 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -170,53 +170,6 @@ out:
 	return err;
 }
 
-#ifdef CONFIG_PM
-/**
- * ufshcd_pltfrm_suspend - suspend power management function
- * @dev: pointer to device handle
- *
- * Returns 0 if successful
- * Returns non-zero otherwise
- */
-int ufshcd_pltfrm_suspend(struct device *dev)
-{
-	return ufshcd_system_suspend(dev_get_drvdata(dev));
-}
-EXPORT_SYMBOL_GPL(ufshcd_pltfrm_suspend);
-
-/**
- * ufshcd_pltfrm_resume - resume power management function
- * @dev: pointer to device handle
- *
- * Returns 0 if successful
- * Returns non-zero otherwise
- */
-int ufshcd_pltfrm_resume(struct device *dev)
-{
-	return ufshcd_system_resume(dev_get_drvdata(dev));
-}
-EXPORT_SYMBOL_GPL(ufshcd_pltfrm_resume);
-
-int ufshcd_pltfrm_runtime_suspend(struct device *dev)
-{
-	return ufshcd_runtime_suspend(dev_get_drvdata(dev));
-}
-EXPORT_SYMBOL_GPL(ufshcd_pltfrm_runtime_suspend);
-
-int ufshcd_pltfrm_runtime_resume(struct device *dev)
-{
-	return ufshcd_runtime_resume(dev_get_drvdata(dev));
-}
-EXPORT_SYMBOL_GPL(ufshcd_pltfrm_runtime_resume);
-
-int ufshcd_pltfrm_runtime_idle(struct device *dev)
-{
-	return ufshcd_runtime_idle(dev_get_drvdata(dev));
-}
-EXPORT_SYMBOL_GPL(ufshcd_pltfrm_runtime_idle);
-
-#endif /* CONFIG_PM */
-
 void ufshcd_pltfrm_shutdown(struct platform_device *pdev)
 {
 	ufshcd_shutdown((struct ufs_hba *)platform_get_drvdata(pdev));
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.h b/drivers/scsi/ufs/ufshcd-pltfrm.h
index 772a8e8480982..c33e28ac6ef62 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.h
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.h
@@ -33,22 +33,4 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
 		       const struct ufs_hba_variant_ops *vops);
 void ufshcd_pltfrm_shutdown(struct platform_device *pdev);
 
-#ifdef CONFIG_PM
-
-int ufshcd_pltfrm_suspend(struct device *dev);
-int ufshcd_pltfrm_resume(struct device *dev);
-int ufshcd_pltfrm_runtime_suspend(struct device *dev);
-int ufshcd_pltfrm_runtime_resume(struct device *dev);
-int ufshcd_pltfrm_runtime_idle(struct device *dev);
-
-#else /* !CONFIG_PM */
-
-#define ufshcd_pltfrm_suspend	NULL
-#define ufshcd_pltfrm_resume	NULL
-#define ufshcd_pltfrm_runtime_suspend	NULL
-#define ufshcd_pltfrm_runtime_resume	NULL
-#define ufshcd_pltfrm_runtime_idle	NULL
-
-#endif /* CONFIG_PM */
-
 #endif /* UFSHCD_PLTFRM_H_ */
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9113e175930a0..0180cb9e95b0c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9194,15 +9194,17 @@ out:
 }
 
 /**
- * ufshcd_system_suspend - system suspend routine
- * @hba: per adapter instance
+ * ufshcd_system_suspend - system suspend callback
+ * @dev: Device associated with the UFS controller.
  *
- * Check the description of ufshcd_suspend() function for more details.
+ * Executed before putting the system into a sleep state in which the contents
+ * of main memory are preserved.
  *
  * Returns 0 for success and non-zero for failure
  */
-int ufshcd_system_suspend(struct ufs_hba *hba)
+int ufshcd_system_suspend(struct device *dev)
 {
+	struct ufs_hba *hba = dev_get_drvdata(dev);
 	int ret = 0;
 	ktime_t start = ktime_get();
 
@@ -9219,16 +9221,19 @@ out:
 EXPORT_SYMBOL(ufshcd_system_suspend);
 
 /**
- * ufshcd_system_resume - system resume routine
- * @hba: per adapter instance
+ * ufshcd_system_resume - system resume callback
+ * @dev: Device associated with the UFS controller.
+ *
+ * Executed after waking the system up from a sleep state in which the contents
+ * of main memory were preserved.
  *
  * Returns 0 for success and non-zero for failure
  */
-
-int ufshcd_system_resume(struct ufs_hba *hba)
+int ufshcd_system_resume(struct device *dev)
 {
-	int ret = 0;
+	struct ufs_hba *hba = dev_get_drvdata(dev);
 	ktime_t start = ktime_get();
+	int ret = 0;
 
 	if (pm_runtime_suspended(hba->dev))
 		goto out;
@@ -9245,15 +9250,16 @@ out:
 EXPORT_SYMBOL(ufshcd_system_resume);
 
 /**
- * ufshcd_runtime_suspend - runtime suspend routine
- * @hba: per adapter instance
+ * ufshcd_runtime_suspend - runtime suspend callback
+ * @dev: Device associated with the UFS controller.
  *
  * Check the description of ufshcd_suspend() function for more details.
  *
  * Returns 0 for success and non-zero for failure
  */
-int ufshcd_runtime_suspend(struct ufs_hba *hba)
+int ufshcd_runtime_suspend(struct device *dev)
 {
+	struct ufs_hba *hba = dev_get_drvdata(dev);
 	int ret;
 	ktime_t start = ktime_get();
 
@@ -9268,7 +9274,7 @@ EXPORT_SYMBOL(ufshcd_runtime_suspend);
 
 /**
  * ufshcd_runtime_resume - runtime resume routine
- * @hba: per adapter instance
+ * @dev: Device associated with the UFS controller.
  *
  * This function basically brings controller
  * to active state. Following operations are done in this function:
@@ -9276,8 +9282,9 @@ EXPORT_SYMBOL(ufshcd_runtime_suspend);
  * 1. Turn on all the controller related clocks
  * 2. Turn ON VCC rail
  */
-int ufshcd_runtime_resume(struct ufs_hba *hba)
+int ufshcd_runtime_resume(struct device *dev)
 {
+	struct ufs_hba *hba = dev_get_drvdata(dev);
 	int ret;
 	ktime_t start = ktime_get();
 
@@ -9290,12 +9297,6 @@ int ufshcd_runtime_resume(struct ufs_hba *hba)
 }
 EXPORT_SYMBOL(ufshcd_runtime_resume);
 
-int ufshcd_runtime_idle(struct ufs_hba *hba)
-{
-	return 0;
-}
-EXPORT_SYMBOL(ufshcd_runtime_idle);
-
 /**
  * ufshcd_shutdown - shutdown routine
  * @hba: per adapter instance
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 65f31f54ceff0..da7098165a4a4 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1084,11 +1084,10 @@ static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 	return 0;
 }
 
-extern int ufshcd_runtime_suspend(struct ufs_hba *hba);
-extern int ufshcd_runtime_resume(struct ufs_hba *hba);
-extern int ufshcd_runtime_idle(struct ufs_hba *hba);
-extern int ufshcd_system_suspend(struct ufs_hba *hba);
-extern int ufshcd_system_resume(struct ufs_hba *hba);
+extern int ufshcd_runtime_suspend(struct device *dev);
+extern int ufshcd_runtime_resume(struct device *dev);
+extern int ufshcd_system_suspend(struct device *dev);
+extern int ufshcd_system_resume(struct device *dev);
 extern int ufshcd_shutdown(struct ufs_hba *hba);
 extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
 				      int agreed_gear,
-- 
GitLab


From 1eec916379e1075384e8f1468154e3cb57dfe8fb Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:24 -0700
Subject: [PATCH 0743/4878] UPSTREAM: scsi: ufs: Only include power management
 code if necessary

This patch slightly reduces the UFS driver size if built with power
management support disabled.

Link: https://lore.kernel.org/r/20210722033439.26550-4-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9bb25e5d9d2948249631d3396f72e48035b4f380)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I80e4c124f546e2abb1b08444d0e2dc38546f4688
---
 drivers/scsi/ufs/ufshcd.c | 8 ++++++++
 drivers/scsi/ufs/ufshcd.h | 4 ++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0180cb9e95b0c..e8c82e68a5ba6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8721,6 +8721,7 @@ static void ufshcd_vreg_set_lpm(struct ufs_hba *hba)
 		usleep_range(5000, 5100);
 }
 
+#ifdef CONFIG_PM
 static int ufshcd_vreg_set_hpm(struct ufs_hba *hba)
 {
 	int ret = 0;
@@ -8748,6 +8749,7 @@ vcc_disable:
 out:
 	return ret;
 }
+#endif /* CONFIG_PM */
 
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba)
 {
@@ -9155,6 +9157,7 @@ static int ufshcd_suspend(struct ufs_hba *hba)
 	return ret;
 }
 
+#ifdef CONFIG_PM
 /**
  * ufshcd_resume - helper function for resume operations
  * @hba: per adapter instance
@@ -9192,7 +9195,9 @@ out:
 		ufshcd_update_evt_hist(hba, UFS_EVT_RESUME_ERR, (u32)ret);
 	return ret;
 }
+#endif /* CONFIG_PM */
 
+#ifdef CONFIG_PM_SLEEP
 /**
  * ufshcd_system_suspend - system suspend callback
  * @dev: Device associated with the UFS controller.
@@ -9248,7 +9253,9 @@ out:
 	return ret;
 }
 EXPORT_SYMBOL(ufshcd_system_resume);
+#endif /* CONFIG_PM_SLEEP */
 
+#ifdef CONFIG_PM
 /**
  * ufshcd_runtime_suspend - runtime suspend callback
  * @dev: Device associated with the UFS controller.
@@ -9296,6 +9303,7 @@ int ufshcd_runtime_resume(struct device *dev)
 	return ret;
 }
 EXPORT_SYMBOL(ufshcd_runtime_resume);
+#endif /* CONFIG_PM */
 
 /**
  * ufshcd_shutdown - shutdown routine
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index da7098165a4a4..5bd425632e18e 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1084,10 +1084,14 @@ static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 extern int ufshcd_runtime_suspend(struct device *dev);
 extern int ufshcd_runtime_resume(struct device *dev);
+#endif
+#ifdef CONFIG_PM_SLEEP
 extern int ufshcd_system_suspend(struct device *dev);
 extern int ufshcd_system_resume(struct device *dev);
+#endif
 extern int ufshcd_shutdown(struct ufs_hba *hba);
 extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
 				      int agreed_gear,
-- 
GitLab


From f6429c2623618d4f2b0232fe14ba430be5f5ac84 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:25 -0700
Subject: [PATCH 0744/4878] UPSTREAM: scsi: ufs: Rename the second
 ufshcd_probe_hba() argument

Rename the second argument of ufshcd_probe_hba() such that the name of that
argument reflects its purpose instead of how the function is called.  See
also commit 1b9e21412f72 ("scsi: ufs: Split ufshcd_probe_hba() based on its
called flow").

Link: https://lore.kernel.org/r/20210722033439.26550-5-bvanassche@acm.org
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 568dd9959611f097bdce821cef63a50844da98c6)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I9a0fd3b787e6833511c1b4de9d6b50ea20580cd6
---
 drivers/scsi/ufs/ufshcd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e8c82e68a5ba6..c0119ecff2a63 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7966,13 +7966,13 @@ out:
 }
 
 /**
- * ufshcd_probe_hba - probe hba to detect device and initialize
+ * ufshcd_probe_hba - probe hba to detect device and initialize it
  * @hba: per-adapter instance
- * @async: asynchronous execution or not
+ * @init_dev_params: whether or not to call ufshcd_device_params_init().
  *
  * Execute link-startup and verify device initialization
  */
-static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
+static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params)
 {
 	int ret;
 	unsigned long flags;
@@ -8007,7 +8007,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
 	 * Initialize UFS device parameters used by driver, these
 	 * parameters are associated with UFS descriptors.
 	 */
-	if (async) {
+	if (init_dev_params) {
 		ret = ufshcd_device_params_init(hba);
 		if (ret)
 			goto out;
-- 
GitLab


From a68b43f30aa714fa08fd5e3b307c00e5eb3a31d4 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:26 -0700
Subject: [PATCH 0745/4878] UPSTREAM: scsi: ufs: Use
 DECLARE_COMPLETION_ONSTACK() where appropriate

From Documentation/scheduler/completion.rst: "When a completion is declared
as a local variable within a function, then the initialization should
always use DECLARE_COMPLETION_ONSTACK() explicitly, not just to make
lockdep happy, but also to make it clear that limited scope had been
considered and is intentional."

Link: https://lore.kernel.org/r/20210722033439.26550-6-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 8a686f26eaa4b8a5c494b6b69e8a97815e3ffb82)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I1e76702adc3df2e75e7a05fd06310f66d198b149
---
 drivers/scsi/ufs/ufshcd.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c0119ecff2a63..fbd56f7bda6be 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2982,11 +2982,11 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 		enum dev_cmd_type cmd_type, int timeout)
 {
 	struct request_queue *q = hba->cmd_queue;
+	DECLARE_COMPLETION_ONSTACK(wait);
 	struct request *req;
 	struct ufshcd_lrb *lrbp;
 	int err;
 	int tag;
-	struct completion wait;
 
 	down_read(&hba->clk_scaling_lock);
 
@@ -3006,7 +3006,6 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 	req->timeout = msecs_to_jiffies(2 * timeout);
 	blk_mq_start_request(req);
 
-	init_completion(&wait);
 	lrbp = &hba->lrb[tag];
 	WARN_ON(lrbp->cmd);
 	err = ufshcd_compose_dev_cmd(hba, lrbp, cmd_type, tag);
@@ -4019,14 +4018,13 @@ EXPORT_SYMBOL_GPL(ufshcd_dme_get_attr);
  */
 static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
 {
-	struct completion uic_async_done;
+	DECLARE_COMPLETION_ONSTACK(uic_async_done);
 	unsigned long flags;
 	u8 status;
 	int ret;
 	bool reenable_intr = false;
 
 	mutex_lock(&hba->uic_cmd_mutex);
-	init_completion(&uic_async_done);
 	ufshcd_add_delay_before_dme_cmd(hba);
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
@@ -6719,11 +6717,11 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 					enum query_opcode desc_op)
 {
 	struct request_queue *q = hba->cmd_queue;
+	DECLARE_COMPLETION_ONSTACK(wait);
 	struct request *req;
 	struct ufshcd_lrb *lrbp;
 	int err = 0;
 	int tag;
-	struct completion wait;
 	u8 upiu_flags;
 
 	down_read(&hba->clk_scaling_lock);
@@ -6736,7 +6734,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 	tag = req->tag;
 	WARN_ON_ONCE(!ufshcd_valid_tag(hba, tag));
 
-	init_completion(&wait);
 	lrbp = &hba->lrb[tag];
 	WARN_ON(lrbp->cmd);
 	lrbp->cmd = NULL;
-- 
GitLab


From 73d9678ae5d3c31c547a787245401f02ff91b38b Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:27 -0700
Subject: [PATCH 0746/4878] UPSTREAM: scsi: ufs: Remove ufshcd_valid_tag()

scsi_add_host() allocates shost->can_queue tags. ufshcd_init() sets
shost->can_queue to hba->nutrs. In other words, we know that tag values
will less than hba->nutrs. Hence remove the checks that verify that
blk_get_request() returns a tag less than hba->nutrs. This check was
introduced by commit 14497328b6a6 ("scsi: ufs: verify command tag
validity").

Keep the tag >= 0 check because it helps to detect use-after-free issues.

Link: https://lore.kernel.org/r/20210722033439.26550-7-bvanassche@acm.org
CC: Avri Altman <avri.altman@wdc.com>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 4728ab4a8e64902b0b0c5238ed09128ea20aa5ce)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I3c947ae3e2cce5712fd82fef9cfb937a80db0867
---
 drivers/scsi/ufs/ufshcd.c | 42 ++++++++++-----------------------------
 1 file changed, 10 insertions(+), 32 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index fbd56f7bda6be..3d571c01b73b3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -254,11 +254,6 @@ static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable);
 static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba);
 static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba);
 
-static inline bool ufshcd_valid_tag(struct ufs_hba *hba, int tag)
-{
-	return tag >= 0 && tag < hba->nutrs;
-}
-
 static inline void ufshcd_enable_irq(struct ufs_hba *hba)
 {
 	if (!hba->is_irq_enabled) {
@@ -2729,20 +2724,12 @@ static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i)
  */
 static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 {
+	struct ufs_hba *hba = shost_priv(host);
+	int tag = cmd->request->tag;
 	struct ufshcd_lrb *lrbp;
-	struct ufs_hba *hba;
-	int tag;
 	int err = 0;
 
-	hba = shost_priv(host);
-
-	tag = cmd->request->tag;
-	if (!ufshcd_valid_tag(hba, tag)) {
-		dev_err(hba->dev,
-			"%s: invalid command tag %d: cmd=0x%p, cmd->request=0x%p",
-			__func__, tag, cmd, cmd->request);
-		BUG();
-	}
+	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
 
 	if (!down_read_trylock(&hba->clk_scaling_lock))
 		return SCSI_MLQUEUE_HOST_BUSY;
@@ -3001,7 +2988,7 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 		goto out_unlock;
 	}
 	tag = req->tag;
-	WARN_ON_ONCE(!ufshcd_valid_tag(hba, tag));
+	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
 	/* Set the timeout such that the SCSI error handler is not activated. */
 	req->timeout = msecs_to_jiffies(2 * timeout);
 	blk_mq_start_request(req);
@@ -6732,7 +6719,7 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 		goto out_unlock;
 	}
 	tag = req->tag;
-	WARN_ON_ONCE(!ufshcd_valid_tag(hba, tag));
+	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
 
 	lrbp = &hba->lrb[tag];
 	WARN_ON(lrbp->cmd);
@@ -7028,24 +7015,15 @@ out:
  */
 static int ufshcd_abort(struct scsi_cmnd *cmd)
 {
-	struct Scsi_Host *host;
-	struct ufs_hba *hba;
+	struct Scsi_Host *host = cmd->device->host;
+	struct ufs_hba *hba = shost_priv(host);
+	unsigned int tag = cmd->request->tag;
+	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
 	unsigned long flags;
-	unsigned int tag;
 	int err = FAILED, res;
-	struct ufshcd_lrb *lrbp;
 	u32 reg;
 
-	host = cmd->device->host;
-	hba = shost_priv(host);
-	tag = cmd->request->tag;
-	lrbp = &hba->lrb[tag];
-	if (!ufshcd_valid_tag(hba, tag)) {
-		dev_err(hba->dev,
-			"%s: invalid command tag %d: cmd=0x%p, cmd->request=0x%p",
-			__func__, tag, cmd, cmd->request);
-		BUG();
-	}
+	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
 
 	ufshcd_hold(hba, false);
 	reg = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-- 
GitLab


From 506a024be7591b0150b289e19bfd46f5ef01cc60 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:28 -0700
Subject: [PATCH 0747/4878] UPSTREAM: scsi: ufs: Verify UIC locking
 requirements at runtime

Instead of documenting the locking requirements of the UIC code as
comments, use lockdep_assert_held() such that lockdep verifies the lockdep
requirements at runtime if lockdep is enabled.

Link: https://lore.kernel.org/r/20210722033439.26550-8-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 35c7d874f5993db04ce3aa310ae088f14b801eda)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ifdc3d90bcdcfa43cda2d286295521666ccef4795
---
 drivers/scsi/ufs/ufshcd.c | 16 +++++++++-------
 drivers/scsi/ufs/ufshcd.h |  2 +-
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3d571c01b73b3..ca485189e49be 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2263,15 +2263,15 @@ static inline u8 ufshcd_get_upmcrs(struct ufs_hba *hba)
 }
 
 /**
- * ufshcd_dispatch_uic_cmd - Dispatch UIC commands to unipro layers
+ * ufshcd_dispatch_uic_cmd - Dispatch an UIC command to the Unipro layer
  * @hba: per adapter instance
  * @uic_cmd: UIC command
- *
- * Mutex must be held.
  */
 static inline void
 ufshcd_dispatch_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd)
 {
+	lockdep_assert_held(&hba->uic_cmd_mutex);
+
 	WARN_ON(hba->active_uic_cmd);
 
 	hba->active_uic_cmd = uic_cmd;
@@ -2289,11 +2289,10 @@ ufshcd_dispatch_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd)
 }
 
 /**
- * ufshcd_wait_for_uic_cmd - Wait complectioin of UIC command
+ * ufshcd_wait_for_uic_cmd - Wait for completion of an UIC command
  * @hba: per adapter instance
  * @uic_cmd: UIC command
  *
- * Must be called with mutex held.
  * Returns 0 only if success.
  */
 static int
@@ -2302,6 +2301,8 @@ ufshcd_wait_for_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd)
 	int ret;
 	unsigned long flags;
 
+	lockdep_assert_held(&hba->uic_cmd_mutex);
+
 	if (wait_for_completion_timeout(&uic_cmd->done,
 					msecs_to_jiffies(UIC_CMD_TIMEOUT))) {
 		ret = uic_cmd->argument2 & MASK_UIC_COMMAND_RESULT;
@@ -2331,14 +2332,15 @@ ufshcd_wait_for_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd)
  * @uic_cmd: UIC command
  * @completion: initialize the completion only if this is set to true
  *
- * Identical to ufshcd_send_uic_cmd() expect mutex. Must be called
- * with mutex held and host_lock locked.
  * Returns 0 only if success.
  */
 static int
 __ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd,
 		      bool completion)
 {
+	lockdep_assert_held(&hba->uic_cmd_mutex);
+	lockdep_assert_held(hba->host->host_lock);
+
 	if (!ufshcd_ready_for_uic_cmd(hba)) {
 		dev_err(hba->dev,
 			"Controller not ready to accept UIC commands\n");
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 5bd425632e18e..7ce39f2c90698 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -756,7 +756,7 @@ struct ufs_hba_monitor {
  * @sg_entry_size: size of struct ufshcd_sg_entry (may include variant fields)
  * @irq: Irq number of the controller
  * @active_uic_cmd: handle of active UIC command
- * @uic_cmd_mutex: mutex for uic command
+ * @uic_cmd_mutex: mutex for UIC command
  * @tmf_tag_set: TMF tag set.
  * @tmf_queue: Used to allocate TMF tags.
  * @pwr_done: completion for power mode change
-- 
GitLab


From e011c72e8a7328b20e53d418042f8a5f31ffb9ae Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:29 -0700
Subject: [PATCH 0748/4878] UPSTREAM: scsi: ufs: Improve static type checking
 for the host controller state

Assign a name to the enumeration type for UFS host controller states and
remove the default clause from switch statements on this enumeration type
to make the compiler warn about unhandled enumeration labels.

Link: https://lore.kernel.org/r/20210722033439.26550-9-bvanassche@acm.org
Cc: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9c202090edd4c7679adf5bf040d7ee19966feae6)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I0756ae3a04caaa8b7584b847a57772f7bf6a771b
---
 drivers/scsi/ufs/ufshcd.c | 15 ---------------
 drivers/scsi/ufs/ufshcd.h | 25 +++++++++++++++++++++++--
 2 files changed, 23 insertions(+), 17 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ca485189e49be..ba380264fda9e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -131,15 +131,6 @@ enum {
 	UFSHCD_CAN_QUEUE	= 32,
 };
 
-/* UFSHCD states */
-enum {
-	UFSHCD_STATE_RESET,
-	UFSHCD_STATE_ERROR,
-	UFSHCD_STATE_OPERATIONAL,
-	UFSHCD_STATE_EH_SCHEDULED_FATAL,
-	UFSHCD_STATE_EH_SCHEDULED_NON_FATAL,
-};
-
 /* UFSHCD error handling flags */
 enum {
 	UFSHCD_EH_IN_PROGRESS = (1 << 0),
@@ -2765,12 +2756,6 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 		set_host_byte(cmd, DID_ERROR);
 		cmd->scsi_done(cmd);
 		goto out;
-	default:
-		dev_WARN_ONCE(hba->dev, 1, "%s: invalid state %d\n",
-				__func__, hba->ufshcd_state);
-		set_host_byte(cmd, DID_BAD_TARGET);
-		cmd->scsi_done(cmd);
-		goto out;
 	}
 
 	hba->req_abort_count = 0;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 7ce39f2c90698..9a35cb2f0d9c4 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -488,6 +488,27 @@ struct ufs_stats {
 	struct ufs_event_hist event[UFS_EVT_CNT];
 };
 
+/**
+ * enum ufshcd_state - UFS host controller state
+ * @UFSHCD_STATE_RESET: Link is not operational. Postpone SCSI command
+ *	processing.
+ * @UFSHCD_STATE_OPERATIONAL: The host controller is operational and can process
+ *	SCSI commands.
+ * @UFSHCD_STATE_EH_SCHEDULED_NON_FATAL: The error handler has been scheduled.
+ *	SCSI commands may be submitted to the controller.
+ * @UFSHCD_STATE_EH_SCHEDULED_FATAL: The error handler has been scheduled. Fail
+ *	newly submitted SCSI commands with error code DID_BAD_TARGET.
+ * @UFSHCD_STATE_ERROR: An unrecoverable error occurred, e.g. link recovery
+ *	failed. Fail all SCSI commands with error code DID_ERROR.
+ */
+enum ufshcd_state {
+	UFSHCD_STATE_RESET,
+	UFSHCD_STATE_OPERATIONAL,
+	UFSHCD_STATE_EH_SCHEDULED_NON_FATAL,
+	UFSHCD_STATE_EH_SCHEDULED_FATAL,
+	UFSHCD_STATE_ERROR,
+};
+
 enum ufshcd_quirks {
 	/* Interrupt aggregation support is broken */
 	UFSHCD_QUIRK_BROKEN_INTR_AGGR			= 1 << 0,
@@ -760,7 +781,7 @@ struct ufs_hba_monitor {
  * @tmf_tag_set: TMF tag set.
  * @tmf_queue: Used to allocate TMF tags.
  * @pwr_done: completion for power mode change
- * @ufshcd_state: UFSHCD states
+ * @ufshcd_state: UFSHCD state
  * @eh_flags: Error handling flags
  * @intr_mask: Interrupt Mask Bits
  * @ee_ctrl_mask: Exception event control mask
@@ -860,7 +881,7 @@ struct ufs_hba {
 	struct mutex uic_cmd_mutex;
 	struct completion *uic_async_done;
 
-	u32 ufshcd_state;
+	enum ufshcd_state ufshcd_state;
 	u32 eh_flags;
 	u32 intr_mask;
 	u16 ee_ctrl_mask; /* Exception event mask */
-- 
GitLab


From 3a5eed8fd708e8300df8aaf6a03f423af9d335ad Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:30 -0700
Subject: [PATCH 0749/4878] UPSTREAM: scsi: ufs: Remove several wmb() calls

From arch/arm/include/asm/io.h

  #define __iowmb() wmb()
  [ ... ]
  #define writel(v,c) ({ __iowmb(); writel_relaxed(v,c); })

From Documentation/memory-barriers.txt: "Note that, when using writel(), a
prior wmb() is not needed to guarantee that the cache coherent memory
writes have completed before writing to the MMIO region."

In other words, calling wmb() before writel() is not necessary. Hence
remove the wmb() calls that precede a writel() call. Remove the wmb() calls
that precede a ufshcd_send_command() call since the latter function uses
writel(). Remove the wmb() call from ufshcd_wait_for_dev_cmd() since the
following chain of events guarantees that the CPU will see up-to-date LRB
values:

 - UFS controller writes to host memory.

 - UFS controller posts completion interrupt after the memory writes from
   the previous step are visible to the CPU.

 - complete(hba->dev_cmd.complete) is called from the UFS interrupt handler.

 - The wait_for_completion(hba->dev_cmd.complete) call in
   ufshcd_wait_for_dev_cmd() returns.

Link: https://lore.kernel.org/r/20210722033439.26550-10-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Tested-by: Avri altman <avri.altman@wdc.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 3d2ac73d13476fd996e3423863371805780a0663)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ica6352b01e27b4a0fcee7dc9df44beab9139cc2c
---
 drivers/scsi/ufs/ufshcd.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ba380264fda9e..d7ddfaa34ed4d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2803,8 +2803,6 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 		ufshcd_release(hba);
 		goto out;
 	}
-	/* Make sure descriptors are ready before ringing the doorbell */
-	wmb();
 
 	ufshcd_send_command(hba, tag);
 out:
@@ -2914,8 +2912,6 @@ static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba,
 	time_left = wait_for_completion_timeout(hba->dev_cmd.complete,
 			msecs_to_jiffies(max_timeout));
 
-	/* Make sure descriptors are ready before ringing the doorbell */
-	wmb();
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	hba->dev_cmd.complete = NULL;
 	if (likely(time_left)) {
@@ -2989,8 +2985,6 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 	hba->dev_cmd.complete = &wait;
 
 	ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr);
-	/* Make sure descriptors are ready before ringing the doorbell */
-	wmb();
 
 	ufshcd_send_command(hba, tag);
 	err = ufshcd_wait_for_dev_cmd(hba, lrbp, timeout);
@@ -6575,9 +6569,6 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	/* send command to the controller */
 	__set_bit(task_tag, &hba->outstanding_tasks);
 
-	/* Make sure descriptors are ready before ringing the task doorbell */
-	wmb();
-
 	ufshcd_writel(hba, 1 << task_tag, REG_UTP_TASK_REQ_DOOR_BELL);
 	/* Make sure that doorbell is committed immediately */
 	wmb();
@@ -6745,8 +6736,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 	hba->dev_cmd.complete = &wait;
 
 	ufshcd_add_query_upiu_trace(hba, UFS_QUERY_SEND, lrbp->ucd_req_ptr);
-	/* Make sure descriptors are ready before ringing the doorbell */
-	wmb();
 
 	ufshcd_send_command(hba, tag);
 	/*
-- 
GitLab


From b98f9da669af42bbf7353ec97f313723b259e40c Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Mon, 25 Oct 2021 16:33:57 -0700
Subject: [PATCH 0750/4878] UPSTREAM: scsi: ufs: Inline
 ufshcd_outstanding_req_clear()

Inline ufshcd_outstanding_req_clear() since it only has one caller and
since its body is only one line long.

Link: https://lore.kernel.org/r/20210722033439.26550-11-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 815b9a27b0a3055585db37c422146067e55e0617)
Bug: 204438323
Change-Id: I94b8ef9834f7efe4887a488eeb298e6a23727bba
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d7ddfaa34ed4d..de3e6e35689ee 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -758,16 +758,6 @@ static inline void ufshcd_utmrl_clear(struct ufs_hba *hba, u32 pos)
 		ufshcd_writel(hba, ~(1 << pos), REG_UTP_TASK_REQ_LIST_CLEAR);
 }
 
-/**
- * ufshcd_outstanding_req_clear - Clear a bit in outstanding request field
- * @hba: per adapter instance
- * @tag: position of the bit to be cleared
- */
-static inline void ufshcd_outstanding_req_clear(struct ufs_hba *hba, int tag)
-{
-	clear_bit(tag, &hba->outstanding_reqs);
-}
-
 /**
  * ufshcd_get_lists_status - Check UCRDY, UTRLRDY and UTMRLRDY
  * @reg: Register value of host controller status
@@ -2933,7 +2923,7 @@ static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba,
 		 * we also need to clear the outstanding_request
 		 * field in hba
 		 */
-		ufshcd_outstanding_req_clear(hba, lrbp->task_tag);
+		clear_bit(lrbp->task_tag, &hba->outstanding_reqs);
 	}
 
 	return err;
-- 
GitLab


From 679183fefa3471f477963a42c77bff39b3258913 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:32 -0700
Subject: [PATCH 0751/4878] UPSTREAM: scsi: ufs: Revert "Utilize Transfer
 Request List Completion Notification Register"

Using the UTRLCNR register involves two MMIO accesses in the hot path while
using the doorbell register only involves a single MMIO access. Since MMIO
accesses take time, do not use the UTRLCNR register. The spinlock
contention on the SCSI host lock that is reintroduced by this commit will
be addressed later.

This reverts commit 6f7151729647e58ac7c522081255fd0c07b38105.

Link: https://lore.kernel.org/r/20210722033439.26550-12-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 1f522c5049016cfea4f9d131ae9089e6fdba3980)
Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I84888843e7d66ddc85cd97b181112d1f6606bd5a
---
 drivers/scsi/ufs/ufshcd.c | 52 +++++++++++----------------------------
 drivers/scsi/ufs/ufshcd.h |  5 ----
 drivers/scsi/ufs/ufshci.h |  1 -
 3 files changed, 15 insertions(+), 43 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index de3e6e35689ee..cd337026a4fba 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2108,6 +2108,7 @@ static inline
 void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 {
 	struct ufshcd_lrb *lrbp = &hba->lrb[task_tag];
+	unsigned long flags;
 
 	lrbp->issue_time_stamp = ktime_get();
 	lrbp->compl_time_stamp = ktime_set(0, 0);
@@ -2117,19 +2118,10 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 	ufshcd_clk_scaling_start_busy(hba);
 	if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 		ufshcd_start_monitor(hba, lrbp);
-	if (ufshcd_has_utrlcnr(hba)) {
-		set_bit(task_tag, &hba->outstanding_reqs);
-		ufshcd_writel(hba, 1 << task_tag,
-			      REG_UTP_TRANSFER_REQ_DOOR_BELL);
-	} else {
-		unsigned long flags;
-
-		spin_lock_irqsave(hba->host->host_lock, flags);
-		set_bit(task_tag, &hba->outstanding_reqs);
-		ufshcd_writel(hba, 1 << task_tag,
-			      REG_UTP_TRANSFER_REQ_DOOR_BELL);
-		spin_unlock_irqrestore(hba->host->host_lock, flags);
-	}
+	spin_lock_irqsave(hba->host->host_lock, flags);
+	set_bit(task_tag, &hba->outstanding_reqs);
+	ufshcd_writel(hba, 1 << task_tag, REG_UTP_TRANSFER_REQ_DOOR_BELL);
+	spin_unlock_irqrestore(hba->host->host_lock, flags);
 	/* Make sure that doorbell is committed immediately */
 	wmb();
 }
@@ -5301,17 +5293,17 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 }
 
 /**
- * ufshcd_trc_handler - handle transfer requests completion
+ * ufshcd_transfer_req_compl - handle SCSI and query command completion
  * @hba: per adapter instance
- * @use_utrlcnr: get completed requests from UTRLCNR
  *
  * Returns
  *  IRQ_HANDLED - If interrupt is valid
  *  IRQ_NONE    - If invalid interrupt
  */
-static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
+static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
 {
-	unsigned long completed_reqs = 0;
+	unsigned long completed_reqs, flags;
+	u32 tr_doorbell;
 
 	/* Resetting interrupt aggregation counters first and reading the
 	 * DOOR_BELL afterward allows us to handle all the completed requests.
@@ -5324,24 +5316,10 @@ static irqreturn_t ufshcd_trc_handler(struct ufs_hba *hba, bool use_utrlcnr)
 	    !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR))
 		ufshcd_reset_intr_aggr(hba);
 
-	if (use_utrlcnr) {
-		u32 utrlcnr;
-
-		utrlcnr = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_LIST_COMPL);
-		if (utrlcnr) {
-			ufshcd_writel(hba, utrlcnr,
-				      REG_UTP_TRANSFER_REQ_LIST_COMPL);
-			completed_reqs = utrlcnr;
-		}
-	} else {
-		unsigned long flags;
-		u32 tr_doorbell;
-
-		spin_lock_irqsave(hba->host->host_lock, flags);
-		tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-		completed_reqs = tr_doorbell ^ hba->outstanding_reqs;
-		spin_unlock_irqrestore(hba->host->host_lock, flags);
-	}
+	spin_lock_irqsave(hba->host->host_lock, flags);
+	tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
+	completed_reqs = tr_doorbell ^ hba->outstanding_reqs;
+	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
 	if (completed_reqs) {
 		__ufshcd_transfer_req_compl(hba, completed_reqs);
@@ -5824,7 +5802,7 @@ out:
 /* Complete requests that have door-bell cleared */
 static void ufshcd_complete_requests(struct ufs_hba *hba)
 {
-	ufshcd_trc_handler(hba, false);
+	ufshcd_transfer_req_compl(hba);
 	ufshcd_tmc_handler(hba);
 }
 
@@ -6451,7 +6429,7 @@ static irqreturn_t ufshcd_sl_intr(struct ufs_hba *hba, u32 intr_status)
 		retval |= ufshcd_tmc_handler(hba);
 
 	if (intr_status & UTP_TRANSFER_REQ_COMPL)
-		retval |= ufshcd_trc_handler(hba, ufshcd_has_utrlcnr(hba));
+		retval |= ufshcd_transfer_req_compl(hba);
 
 	return retval;
 }
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 9a35cb2f0d9c4..916523810c3c3 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1265,11 +1265,6 @@ static inline u32 ufshcd_vops_get_ufs_hci_version(struct ufs_hba *hba)
 	return ufshcd_readl(hba, REG_UFS_VERSION);
 }
 
-static inline bool ufshcd_has_utrlcnr(struct ufs_hba *hba)
-{
-	return (hba->ufs_version >= ufshci_version(3, 0));
-}
-
 static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba,
 			bool up, enum ufs_notify_change_status status)
 {
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 37e05eef33608..473a46e6daaaa 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -39,7 +39,6 @@ enum {
 	REG_UTP_TRANSFER_REQ_DOOR_BELL		= 0x58,
 	REG_UTP_TRANSFER_REQ_LIST_CLEAR		= 0x5C,
 	REG_UTP_TRANSFER_REQ_LIST_RUN_STOP	= 0x60,
-	REG_UTP_TRANSFER_REQ_LIST_COMPL		= 0x64,
 	REG_UTP_TASK_REQ_LIST_BASE_L		= 0x70,
 	REG_UTP_TASK_REQ_LIST_BASE_H		= 0x74,
 	REG_UTP_TASK_REQ_DOOR_BELL		= 0x78,
-- 
GitLab


From 3267cb15640bef8914e4f3dbff3817508dad4195 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:33 -0700
Subject: [PATCH 0752/4878] UPSTREAM: scsi: ufs: Optimize serialization of
 setup_xfer_req() calls

Reduce the number of times the host lock is taken in the hot path.
Additionally, inline ufshcd_vops_setup_xfer_req() because that function is
too short to keep it.

Link: https://lore.kernel.org/r/20210722033439.26550-13-bvanassche@acm.org
Fixes: a45f937110fa ("scsi: ufs: Optimize host lock on transfer requests send/compl paths")
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: Id2a4b722160e277a0670c3ce4b066d695c816c9b
Bug: 204438323
(cherry picked from commit a024ad0d49550e4ea1156e677cd9382e1eefbdd7)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c |  3 ++-
 drivers/scsi/ufs/ufshcd.h | 12 ------------
 2 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index cd337026a4fba..6488365d69c8c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2112,13 +2112,14 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 
 	lrbp->issue_time_stamp = ktime_get();
 	lrbp->compl_time_stamp = ktime_set(0, 0);
-	ufshcd_vops_setup_xfer_req(hba, task_tag, (lrbp->cmd ? true : false));
 	trace_android_vh_ufs_send_command(hba, lrbp);
 	ufshcd_add_command_trace(hba, task_tag, UFS_CMD_SEND);
 	ufshcd_clk_scaling_start_busy(hba);
 	if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 		ufshcd_start_monitor(hba, lrbp);
 	spin_lock_irqsave(hba->host->host_lock, flags);
+	if (hba->vops && hba->vops->setup_xfer_req)
+		hba->vops->setup_xfer_req(hba, task_tag, !!lrbp->cmd);
 	set_bit(task_tag, &hba->outstanding_reqs);
 	ufshcd_writel(hba, 1 << task_tag, REG_UTP_TRANSFER_REQ_DOOR_BELL);
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 916523810c3c3..16222537dc79f 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1326,18 +1326,6 @@ static inline int ufshcd_vops_pwr_change_notify(struct ufs_hba *hba,
 	return -ENOTSUPP;
 }
 
-static inline void ufshcd_vops_setup_xfer_req(struct ufs_hba *hba, int tag,
-					bool is_scsi_cmd)
-{
-	if (hba->vops && hba->vops->setup_xfer_req) {
-		unsigned long flags;
-
-		spin_lock_irqsave(hba->host->host_lock, flags);
-		hba->vops->setup_xfer_req(hba, tag, is_scsi_cmd);
-		spin_unlock_irqrestore(hba->host->host_lock, flags);
-	}
-}
-
 static inline void ufshcd_vops_setup_task_mgmt(struct ufs_hba *hba,
 					int tag, u8 tm_function)
 {
-- 
GitLab


From 246c1ab904b3888e900ebb3db5ccdcc97f1a0940 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:34 -0700
Subject: [PATCH 0753/4878] UPSTREAM: scsi: ufs: Optimize SCSI command
 processing

Use a spinlock to protect hba->outstanding_reqs instead of using atomic
operations to update this member variable.

This patch is a performance improvement because it reduces the number of
atomic operations in the hot path (test_and_clear_bit()) and because it
reduces the lock contention on the SCSI host lock. On my test setup this
patch improves IOPS by about 1%.

Link: https://lore.kernel.org/r/20210722033439.26550-14-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I896b9efee97133f78ac6d4f96047067a1ec886c0
Bug: 204438323
(cherry picked from commit 169f5eb28869098ac02d7e03abea36e8ac599bcc)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 29 ++++++++++++++++++-----------
 drivers/scsi/ufs/ufshcd.h |  2 ++
 2 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6488365d69c8c..c4e72b3540621 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2117,12 +2117,14 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag)
 	ufshcd_clk_scaling_start_busy(hba);
 	if (unlikely(ufshcd_should_inform_monitor(hba, lrbp)))
 		ufshcd_start_monitor(hba, lrbp);
-	spin_lock_irqsave(hba->host->host_lock, flags);
+
+	spin_lock_irqsave(&hba->outstanding_lock, flags);
 	if (hba->vops && hba->vops->setup_xfer_req)
 		hba->vops->setup_xfer_req(hba, task_tag, !!lrbp->cmd);
-	set_bit(task_tag, &hba->outstanding_reqs);
+	__set_bit(task_tag, &hba->outstanding_reqs);
 	ufshcd_writel(hba, 1 << task_tag, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
+	spin_unlock_irqrestore(&hba->outstanding_lock, flags);
+
 	/* Make sure that doorbell is committed immediately */
 	wmb();
 }
@@ -2916,7 +2918,9 @@ static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba,
 		 * we also need to clear the outstanding_request
 		 * field in hba
 		 */
-		clear_bit(lrbp->task_tag, &hba->outstanding_reqs);
+		spin_lock_irqsave(&hba->outstanding_lock, flags);
+		__clear_bit(lrbp->task_tag, &hba->outstanding_reqs);
+		spin_unlock_irqrestore(&hba->outstanding_lock, flags);
 	}
 
 	return err;
@@ -5258,8 +5262,6 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 	bool update_scaling = false;
 
 	for_each_set_bit(index, &completed_reqs, hba->nutrs) {
-		if (!test_and_clear_bit(index, &hba->outstanding_reqs))
-			continue;
 		lrbp = &hba->lrb[index];
 		lrbp->compl_time_stamp = ktime_get();
 		cmd = lrbp->cmd;
@@ -5317,10 +5319,14 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
 	    !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR))
 		ufshcd_reset_intr_aggr(hba);
 
-	spin_lock_irqsave(hba->host->host_lock, flags);
+	spin_lock_irqsave(&hba->outstanding_lock, flags);
 	tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-	completed_reqs = tr_doorbell ^ hba->outstanding_reqs;
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
+	completed_reqs = ~tr_doorbell & hba->outstanding_reqs;
+	WARN_ONCE(completed_reqs & ~hba->outstanding_reqs,
+		  "completed: %#lx; outstanding: %#lx\n", completed_reqs,
+		  hba->outstanding_reqs);
+	hba->outstanding_reqs &= ~completed_reqs;
+	spin_unlock_irqrestore(&hba->outstanding_lock, flags);
 
 	if (completed_reqs) {
 		__ufshcd_transfer_req_compl(hba, completed_reqs);
@@ -9327,11 +9333,12 @@ int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle)
 	hba = shost_priv(host);
 	hba->host = host;
 	hba->dev = dev;
-	*hba_handle = hba;
 	hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL;
 	hba->sg_entry_size = sizeof(struct ufshcd_sg_entry);
-
 	INIT_LIST_HEAD(&hba->clk_list_head);
+	spin_lock_init(&hba->outstanding_lock);
+
+	*hba_handle = hba;
 
 out_error:
 	return err;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 16222537dc79f..dafc00c2bdd68 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -767,6 +767,7 @@ struct ufs_hba_monitor {
  * @lrb: local reference block
  * @cmd_queue: Used to allocate command tags from hba->host->tag_set.
  * @outstanding_tasks: Bits representing outstanding task requests
+ * @outstanding_lock: Protects @outstanding_reqs.
  * @outstanding_reqs: Bits representing outstanding transfer requests
  * @capabilities: UFS Controller Capabilities
  * @nutrs: Transfer Request Queue depth supported by controller
@@ -854,6 +855,7 @@ struct ufs_hba {
 	struct ufshcd_lrb *lrb;
 
 	unsigned long outstanding_tasks;
+	spinlock_t outstanding_lock;
 	unsigned long outstanding_reqs;
 
 	u32 capabilities;
-- 
GitLab


From 3f9a325f48c21a779d1acb2bfbe6cb6b4e122001 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 21 Jul 2021 20:34:39 -0700
Subject: [PATCH 0754/4878] UPSTREAM: scsi: ufs: Add fault injection support

Make it easier to test the UFS error handler and abort handler.

Link: https://lore.kernel.org/r/20210722033439.26550-19-bvanassche@acm.org
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I85a409ee2ed8b0a4ccb5a3c896d69809337bfbe3
Bug: 204438323
(cherry picked from commit c11a1ae9b8f65ef7b82a5a1155581a6e6bafa375)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/Kconfig               |  7 +++
 drivers/scsi/ufs/Makefile              |  1 +
 drivers/scsi/ufs/ufs-fault-injection.c | 70 ++++++++++++++++++++++++++
 drivers/scsi/ufs/ufs-fault-injection.h | 24 +++++++++
 drivers/scsi/ufs/ufshcd.c              | 13 +++++
 5 files changed, 115 insertions(+)
 create mode 100644 drivers/scsi/ufs/ufs-fault-injection.c
 create mode 100644 drivers/scsi/ufs/ufs-fault-injection.h

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index ee650526c5605..432df76e6318a 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -192,3 +192,10 @@ config SCSI_UFS_HPB
 	  L2P (logical to physical) map of UFS to host DRAM. The driver uses HPB
 	  read command by piggybacking physical page number for bypassing FTL (flash
 	  translation layer)'s L2P address translation.
+
+config SCSI_UFS_FAULT_INJECTION
+	bool "UFS Fault Injection Support"
+	depends on SCSI_UFSHCD && FAULT_INJECTION
+	help
+	  Enable fault injection support in the UFS driver. This makes it easier
+	  to test the UFS error handler and abort handler.
diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
index cce9b3916f5b3..c407da9b51713 100644
--- a/drivers/scsi/ufs/Makefile
+++ b/drivers/scsi/ufs/Makefile
@@ -9,6 +9,7 @@ ufshcd-core-$(CONFIG_DEBUG_FS)		+= ufs-debugfs.o
 ufshcd-core-$(CONFIG_SCSI_UFS_BSG)	+= ufs_bsg.o
 ufshcd-core-$(CONFIG_SCSI_UFS_CRYPTO)	+= ufshcd-crypto.o
 ufshcd-core-$(CONFIG_SCSI_UFS_HPB)	+= ufshpb.o
+ufshcd-core-$(CONFIG_SCSI_UFS_FAULT_INJECTION) += ufs-fault-injection.o
 
 obj-$(CONFIG_SCSI_UFS_DWC_TC_PCI) += tc-dwc-g210-pci.o ufshcd-dwc.o tc-dwc-g210.o
 obj-$(CONFIG_SCSI_UFS_DWC_TC_PLATFORM) += tc-dwc-g210-pltfrm.o ufshcd-dwc.o tc-dwc-g210.o
diff --git a/drivers/scsi/ufs/ufs-fault-injection.c b/drivers/scsi/ufs/ufs-fault-injection.c
new file mode 100644
index 0000000000000..7ac7c4e7ff831
--- /dev/null
+++ b/drivers/scsi/ufs/ufs-fault-injection.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <linux/kconfig.h>
+#include <linux/types.h>
+#include <linux/fault-inject.h>
+#include <linux/module.h>
+#include "ufs-fault-injection.h"
+
+static int ufs_fault_get(char *buffer, const struct kernel_param *kp);
+static int ufs_fault_set(const char *val, const struct kernel_param *kp);
+
+static const struct kernel_param_ops ufs_fault_ops = {
+	.get = ufs_fault_get,
+	.set = ufs_fault_set,
+};
+
+enum { FAULT_INJ_STR_SIZE = 80 };
+
+/*
+ * For more details about fault injection, please refer to
+ * Documentation/fault-injection/fault-injection.rst.
+ */
+static char g_trigger_eh_str[FAULT_INJ_STR_SIZE];
+module_param_cb(trigger_eh, &ufs_fault_ops, g_trigger_eh_str, 0644);
+MODULE_PARM_DESC(trigger_eh,
+	"Fault injection. trigger_eh=<interval>,<probability>,<space>,<times>");
+static DECLARE_FAULT_ATTR(ufs_trigger_eh_attr);
+
+static char g_timeout_str[FAULT_INJ_STR_SIZE];
+module_param_cb(timeout, &ufs_fault_ops, g_timeout_str, 0644);
+MODULE_PARM_DESC(timeout,
+	"Fault injection. timeout=<interval>,<probability>,<space>,<times>");
+static DECLARE_FAULT_ATTR(ufs_timeout_attr);
+
+static int ufs_fault_get(char *buffer, const struct kernel_param *kp)
+{
+	const char *fault_str = kp->arg;
+
+	return sysfs_emit(buffer, "%s\n", fault_str);
+}
+
+static int ufs_fault_set(const char *val, const struct kernel_param *kp)
+{
+	struct fault_attr *attr = NULL;
+
+	if (kp->arg == g_trigger_eh_str)
+		attr = &ufs_trigger_eh_attr;
+	else if (kp->arg == g_timeout_str)
+		attr = &ufs_timeout_attr;
+
+	if (WARN_ON_ONCE(!attr))
+		return -EINVAL;
+
+	if (!setup_fault_attr(attr, (char *)val))
+		return -EINVAL;
+
+	strlcpy(kp->arg, val, FAULT_INJ_STR_SIZE);
+
+	return 0;
+}
+
+bool ufs_trigger_eh(void)
+{
+	return should_fail(&ufs_trigger_eh_attr, 1);
+}
+
+bool ufs_fail_completion(void)
+{
+	return should_fail(&ufs_timeout_attr, 1);
+}
diff --git a/drivers/scsi/ufs/ufs-fault-injection.h b/drivers/scsi/ufs/ufs-fault-injection.h
new file mode 100644
index 0000000000000..6d0cd8e10c87a
--- /dev/null
+++ b/drivers/scsi/ufs/ufs-fault-injection.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _UFS_FAULT_INJECTION_H
+#define _UFS_FAULT_INJECTION_H
+
+#include <linux/kconfig.h>
+#include <linux/types.h>
+
+#ifdef CONFIG_SCSI_UFS_FAULT_INJECTION
+bool ufs_trigger_eh(void);
+bool ufs_fail_completion(void);
+#else
+static inline bool ufs_trigger_eh(void)
+{
+	return false;
+}
+
+static inline bool ufs_fail_completion(void)
+{
+	return false;
+}
+#endif
+
+#endif /* _UFS_FAULT_INJECTION_H */
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c4e72b3540621..d7ff0184eea23 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -22,6 +22,7 @@
 #include "unipro.h"
 #include "ufs-sysfs.h"
 #include "ufs-debugfs.h"
+#include "ufs-fault-injection.h"
 #include "ufs_bsg.h"
 #include "ufshcd-crypto.h"
 #include "ufshpb.h"
@@ -2792,6 +2793,15 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	ufshcd_send_command(hba, tag);
 out:
 	up_read(&hba->clk_scaling_lock);
+
+	if (ufs_trigger_eh()) {
+		unsigned long flags;
+
+		spin_lock_irqsave(hba->host->host_lock, flags);
+		ufshcd_schedule_eh_work(hba);
+		spin_unlock_irqrestore(hba->host->host_lock, flags);
+	}
+
 	return err;
 }
 
@@ -5319,6 +5329,9 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
 	    !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR))
 		ufshcd_reset_intr_aggr(hba);
 
+	if (ufs_fail_completion())
+		return IRQ_HANDLED;
+
 	spin_lock_irqsave(&hba->outstanding_lock, flags);
 	tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
 	completed_reqs = ~tr_doorbell & hba->outstanding_reqs;
-- 
GitLab


From e0ff4e3d3c1eb9c427c8c2545bc15361b9312427 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Mon, 2 Aug 2021 20:08:03 +0200
Subject: [PATCH 0755/4878] UPSTREAM: scsi: ufs: core: Remove redundant call in
 ufshcd_add_command_trace()

ufshcd_add_cmd_upiu_trace() will be called later anyway. Simplify code by
moving if-statement.

Link: https://lore.kernel.org/r/20210802180803.100033-1-huobean@gmail.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit f0101af435c4640e78c0fa0dbacb443c0f31cfb7)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I96120124b178429ee02b0c6e67d78bc8b4e046c3
---
 drivers/scsi/ufs/ufshcd.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d7ff0184eea23..6136514cbad84 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -383,14 +383,11 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 	if (!cmd)
 		return;
 
-	if (!trace_ufshcd_command_enabled()) {
-		/* trace UPIU W/O tracing command */
-		ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
-		return;
-	}
-
 	/* trace UPIU also */
 	ufshcd_add_cmd_upiu_trace(hba, tag, str_t);
+	if (!trace_ufshcd_command_enabled())
+		return;
+
 	opcode = cmd->cmnd[0];
 	lba = scsi_get_lba(cmd);
 
-- 
GitLab


From 19d3641c3dba298e5b6d225a3498bcf3af9d3baf Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Wed, 4 Aug 2021 20:21:27 +0200
Subject: [PATCH 0756/4878] UPSTREAM: scsi: ufs: core: Add L2P entry swap quirk
 for Micron UFS

For Micron UFS devices the L2P entry need to be byteswapped before sending
an HPB READ command to the UFS device. Add the quirk
UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ to address this.

Link: https://lore.kernel.org/r/20210804182128.458356-2-huobean@gmail.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 63522bf3aced0a782b59f0314dbad5cdc8b14c59)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I4c33a8df083551e04de486adcf68e7e13fc20a17
---
 drivers/scsi/ufs/ufs_quirks.h |  6 ++++++
 drivers/scsi/ufs/ufshcd.c     |  3 ++-
 drivers/scsi/ufs/ufshpb.c     | 15 ++++++++++-----
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index 07f559ac5883a..35ec9ea79869a 100644
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -116,4 +116,10 @@ struct ufs_dev_fix {
  */
 #define UFS_DEVICE_QUIRK_DELAY_AFTER_LPM        (1 << 11)
 
+/*
+ * Some UFS devices require L2P entry should be swapped before being sent to the
+ * UFS device for HPB READ command.
+ */
+#define UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ (1 << 12)
+
 #endif /* UFS_QUIRKS_H_ */
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6136514cbad84..cfb342aa5be54 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -200,7 +200,8 @@ ufs_get_desired_pm_lvl_for_dev_link_state(enum ufs_dev_pwr_mode dev_state,
 static struct ufs_dev_fix ufs_fixups[] = {
 	/* UFS cards deviations table */
 	UFS_FIX(UFS_VENDOR_MICRON, UFS_ANY_MODEL,
-		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
+		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM |
+		UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ),
 	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
 		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM |
 		UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE |
diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index cb4a34ae5be10..a3b8f2be8fba4 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -323,15 +323,19 @@ ufshpb_get_pos_from_lpn(struct ufshpb_lu *hpb, unsigned long lpn, int *rgn_idx,
 }
 
 static void
-ufshpb_set_hpb_read_to_upiu(struct ufshpb_lu *hpb, struct ufshcd_lrb *lrbp,
-			    u32 lpn, __be64 ppn, u8 transfer_len, int read_id)
+ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshpb_lu *hpb,
+			    struct ufshcd_lrb *lrbp, u32 lpn, __be64 ppn,
+			    u8 transfer_len, int read_id)
 {
 	unsigned char *cdb = lrbp->cmd->cmnd;
-
+	__be64 ppn_tmp = ppn;
 	cdb[0] = UFSHPB_READ;
 
+	if (hba->dev_quirks & UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ)
+		ppn_tmp = swab64(ppn);
+
 	/* ppn value is stored as big-endian in the host memory */
-	memcpy(&cdb[6], &ppn, sizeof(__be64));
+	memcpy(&cdb[6], &ppn_tmp, sizeof(__be64));
 	cdb[14] = transfer_len;
 	cdb[15] = read_id;
 
@@ -690,7 +694,8 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 		}
 	}
 
-	ufshpb_set_hpb_read_to_upiu(hpb, lrbp, lpn, ppn, transfer_len, read_id);
+	ufshpb_set_hpb_read_to_upiu(hba, hpb, lrbp, lpn, ppn, transfer_len,
+				    read_id);
 
 	hpb->stats.hit_cnt++;
 	return 0;
-- 
GitLab


From a7044949249dcaeb91ede6cd9182345bbd590727 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Wed, 4 Aug 2021 20:21:28 +0200
Subject: [PATCH 0757/4878] UPSTREAM: scsi: ufs: core: Add lu_enable sysfs node

We need to check whether HPB is enabled on a given LU from the userspace
tool. Add lu_enable sysfs node.

Link: https://lore.kernel.org/r/20210804182128.458356-3-huobean@gmail.com
Tested-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit f5efd4fe78de871515444b660029074be17ec11f)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I37faf8f52f180b2b6443cbeffeace3ec47f0a85f
---
 drivers/scsi/ufs/ufs-sysfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 250568623b780..f59e569fcbc9a 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -1165,6 +1165,7 @@ static DEVICE_ATTR_RO(_pname)
 #define UFS_UNIT_DESC_PARAM(_name, _uname, _size)			\
 	UFS_LUN_DESC_PARAM(_name, _uname, UNIT, _size)
 
+UFS_UNIT_DESC_PARAM(lu_enable, _LU_ENABLE, 1);
 UFS_UNIT_DESC_PARAM(boot_lun_id, _BOOT_LUN_ID, 1);
 UFS_UNIT_DESC_PARAM(lun_write_protect, _LU_WR_PROTECT, 1);
 UFS_UNIT_DESC_PARAM(lun_queue_depth, _LU_Q_DEPTH, 1);
@@ -1183,8 +1184,8 @@ UFS_UNIT_DESC_PARAM(hpb_pinned_region_start_offset, _HPB_PIN_RGN_START_OFF, 2);
 UFS_UNIT_DESC_PARAM(hpb_number_pinned_regions, _HPB_NUM_PIN_RGNS, 2);
 UFS_UNIT_DESC_PARAM(wb_buf_alloc_units, _WB_BUF_ALLOC_UNITS, 4);
 
-
 static struct attribute *ufs_sysfs_unit_descriptor[] = {
+	&dev_attr_lu_enable.attr,
 	&dev_attr_boot_lun_id.attr,
 	&dev_attr_lun_write_protect.attr,
 	&dev_attr_lun_queue_depth.attr,
-- 
GitLab


From 3b010f51a06df34db5d28164dd5b5ba60cb6236d Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Fri, 6 Aug 2021 15:43:01 +0100
Subject: [PATCH 0758/4878] UPSTREAM: scsi: ufs: Fix unsigned int compared with
 less than zero

Variable 'tag' is currently an unsigned int and is being compared to less
than zero, this check is always false. Fix this by making 'tag' an int.

Link: https://lore.kernel.org/r/20210806144301.19864-1-colin.king@canonical.com
Fixes: 4728ab4a8e64 ("scsi: ufs: Remove ufshcd_valid_tag()")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Macro compares unsigned to 0")
Bug: 204438323
(cherry picked from commit a5402cdcc2a925835db89ea336909b2b724189df)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I541fe4699e1de7c173a9ec2246eb585c8ba103e5
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index cfb342aa5be54..1af2e73fdecf0 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6979,7 +6979,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 {
 	struct Scsi_Host *host = cmd->device->host;
 	struct ufs_hba *hba = shost_priv(host);
-	unsigned int tag = cmd->request->tag;
+	int tag = cmd->request->tag;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
 	unsigned long flags;
 	int err = FAILED, res;
-- 
GitLab


From c1871d31d630a33602ddacdefa57c01e72162899 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 6 Aug 2021 16:04:41 +0300
Subject: [PATCH 0759/4878] UPSTREAM: scsi: ufshcd: Fix device links when BOOT
 WLUN fails to probe

Managed device links are deleted by device_del(). However it is possible to
add a device link to a consumer before device_add(), and then discovering
an error prevents the device from being used. In that case normally
references to the device would be dropped and the device would be deleted.
However the device link holds a reference to the device, so the device link
and device remain indefinitely (unless the supplier is deleted).

For UFSHCD, if a LUN fails to probe (e.g. absent BOOT WLUN), the device
will not have been registered but can still have a device link holding a
reference to the device. The unwanted device link will prevent runtime
suspend indefinitely.

Amend device link removal to accept removal of a link with an unregistered
consumer device (suggested by Rafael), and fix UFSHCD by explicitly
deleting the device link when SCSI destroys the SCSI device.

Link: https://lore.kernel.org/r/a1c9bac8-b560-b662-f0aa-58c7e000cbbd@intel.com
Fixes: b294ff3e3449 ("scsi: ufs: core: Enable power management for wlun")
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit bf25967ac54129ffb676ee0dbe3b8b34af6c6232)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I68f785335dfd4b762130552cdf492a6ae974bc38
---
 drivers/base/core.c       |  2 ++
 drivers/scsi/ufs/ufshcd.c | 23 +++++++++++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index f59418cefdafd..fd392a0d8231d 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -885,6 +885,8 @@ static void device_link_put_kref(struct device_link *link)
 {
 	if (link->flags & DL_FLAG_STATELESS)
 		kref_put(&link->kref, __device_link_del);
+	else if (!device_is_registered(link->consumer))
+		__device_link_del(&link->kref);
 	else
 		WARN(1, "Unable to drop a managed device link reference\n");
 }
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 1af2e73fdecf0..3cbef659907cb 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5040,6 +5040,7 @@ static int ufshcd_slave_configure(struct scsi_device *sdev)
 static void ufshcd_slave_destroy(struct scsi_device *sdev)
 {
 	struct ufs_hba *hba;
+	unsigned long flags;
 
 	hba = shost_priv(sdev->host);
 
@@ -5047,11 +5048,29 @@ static void ufshcd_slave_destroy(struct scsi_device *sdev)
 
 	/* Drop the reference as it won't be needed anymore */
 	if (ufshcd_scsi_to_upiu_lun(sdev->lun) == UFS_UPIU_UFS_DEVICE_WLUN) {
-		unsigned long flags;
-
 		spin_lock_irqsave(hba->host->host_lock, flags);
 		hba->sdev_ufs_device = NULL;
 		spin_unlock_irqrestore(hba->host->host_lock, flags);
+	} else if (hba->sdev_ufs_device) {
+		struct device *supplier = NULL;
+
+		/* Ensure UFS Device WLUN exists and does not disappear */
+		spin_lock_irqsave(hba->host->host_lock, flags);
+		if (hba->sdev_ufs_device) {
+			supplier = &hba->sdev_ufs_device->sdev_gendev;
+			get_device(supplier);
+		}
+		spin_unlock_irqrestore(hba->host->host_lock, flags);
+
+		if (supplier) {
+			/*
+			 * If a LUN fails to probe (e.g. absent BOOT WLUN), the
+			 * device will not have been registered but can still
+			 * have a device link holding a reference to the device.
+			 */
+			device_link_remove(&sdev->sdev_gendev, supplier);
+			put_device(supplier);
+		}
 	}
 }
 
-- 
GitLab


From 7da289ada7bf962cceeaf18485f51190b51d93b3 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 4 Aug 2021 14:32:41 +0100
Subject: [PATCH 0760/4878] UPSTREAM: scsi: ufs: ufshpb: Remove redundant
 initialization of variable 'lba'

The variable 'lba' is being initialized with a value that is never read, it
is being updated later on. The assignment is redundant and can be removed.

Link: https://lore.kernel.org/r/20210804133241.113509-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
Bug: 204438323
(cherry picked from commit 102851fc9a0d5ac8ea8b3e833f565dc1955b67cc)
Change-Id: Ib32be0785fe1dba67f356587334d02843a7c2e0a
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3cbef659907cb..b51d1147591e5 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -374,7 +374,7 @@ static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
 static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 				     enum ufs_trace_str_t str_t)
 {
-	u64 lba = -1;
+	u64 lba;
 	u8 opcode = 0, group_id = 0;
 	u32 intr, doorbell;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
-- 
GitLab


From 435df62d65bd0697a83565a16fb54c180665bd32 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 9 Aug 2021 16:03:04 -0700
Subject: [PATCH 0761/4878] UPSTREAM: scsi: core: Introduce the
 scsi_cmd_to_rq() function

The 'request' member of struct scsi_cmnd is superfluous. The struct request
and struct scsi_cmnd data structures are adjacent and hence the request
pointer can be derived easily from a scsi_cmnd pointer. Introduce a helper
function that performs that conversion in a type-safe way. This patch is
the first step towards removing the request member from struct
scsi_cmnd. Making that change has the following advantages:

 - This is a performance optimization since adding an offset to a pointer
   takes less time than dereferencing a pointer.

 - struct scsi_cmnd becomes smaller.

Link: https://lore.kernel.org/r/20210809230355.8186-2-bvanassche@acm.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 51f3a478892873337c54068d1185bcd797000a52)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Iba5551cbb5d80daaab10dbbdb302aac7892ea442
---
 include/scsi/scsi_cmnd.h   | 10 +++++++++-
 include/scsi/scsi_device.h | 16 +++++++++-------
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index b6398c9d2c5c6..e8389b00ee74a 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -150,6 +150,12 @@ struct scsi_cmnd {
 	ANDROID_KABI_RESERVE(4);
 };
 
+/* Variant of blk_mq_rq_from_pdu() that verifies the type of its argument. */
+static inline struct request *scsi_cmd_to_rq(struct scsi_cmnd *scmd)
+{
+	return blk_mq_rq_from_pdu(scmd);
+}
+
 /*
  * Return the driver private allocation behind the command.
  * Only works if cmd_size is set in the host template.
@@ -162,7 +168,9 @@ static inline void *scsi_cmd_priv(struct scsi_cmnd *cmd)
 /* make sure not to use it with passthrough commands */
 static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
 {
-	return *(struct scsi_driver **)cmd->request->rq_disk->private_data;
+	struct request *rq = scsi_cmd_to_rq(cmd);
+
+	return *(struct scsi_driver **)rq->rq_disk->private_data;
 }
 
 extern void scsi_finish_command(struct scsi_cmnd *cmd);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 158423bcdde93..a463f14c26b9b 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -271,13 +271,15 @@ sdev_prefix_printk(const char *, const struct scsi_device *, const char *,
 __printf(3, 4) void
 scmd_printk(const char *, const struct scsi_cmnd *, const char *, ...);
 
-#define scmd_dbg(scmd, fmt, a...)					   \
-	do {								   \
-		if ((scmd)->request->rq_disk)				   \
-			sdev_dbg((scmd)->device, "[%s] " fmt,		   \
-				 (scmd)->request->rq_disk->disk_name, ##a);\
-		else							   \
-			sdev_dbg((scmd)->device, fmt, ##a);		   \
+#define scmd_dbg(scmd, fmt, a...)					\
+	do {								\
+		struct request *__rq = scsi_cmd_to_rq((scmd));		\
+									\
+		if (__rq->rq_disk)					\
+			sdev_dbg((scmd)->device, "[%s] " fmt,		\
+				 __rq->rq_disk->disk_name, ##a);	\
+		else							\
+			sdev_dbg((scmd)->device, fmt, ##a);		\
 	} while (0)
 
 enum scsi_target_state {
-- 
GitLab


From 5ee37d89d5b3e27474a270e181922929f606fa9e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 9 Aug 2021 16:03:50 -0700
Subject: [PATCH 0762/4878] UPSTREAM: scsi: ufs: Use scsi_cmd_to_rq() instead
 of scsi_cmnd.request

Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.

Link: https://lore.kernel.org/r/20210809230355.8186-48-bvanassche@acm.org
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 3f2c1002e0fcb61f0b0776cb24c7dd8f06a152b9)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ia097ab3da630dcadd70fb8efbfd212e60cfcc79c
---
 drivers/scsi/ufs/ufshcd.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b51d1147591e5..906eb2237e367 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -379,6 +379,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 	u32 intr, doorbell;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
 	struct scsi_cmnd *cmd = lrbp->cmd;
+	struct request *rq = scsi_cmd_to_rq(cmd);
 	int transfer_len = -1;
 
 	if (!cmd)
@@ -404,7 +405,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 		/*
 		 * The number of Bytes to be unmapped beginning with the lba.
 		 */
-		transfer_len = blk_rq_bytes(cmd->request);
+		transfer_len = blk_rq_bytes(rq);
 	}
 
 	intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
@@ -2073,7 +2074,7 @@ static void ufshcd_update_monitor(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	if (dir >= 0 && hba->monitor.nr_queued[dir] > 0) {
-		struct request *req = lrbp->cmd->request;
+		struct request *req = scsi_cmd_to_rq(lrbp->cmd);
 		struct ufs_hba_monitor *m = &hba->monitor;
 		ktime_t now, inc, lat;
 
@@ -2702,7 +2703,7 @@ static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i)
 static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 {
 	struct ufs_hba *hba = shost_priv(host);
-	int tag = cmd->request->tag;
+	int tag = scsi_cmd_to_rq(cmd)->tag;
 	struct ufshcd_lrb *lrbp;
 	int err = 0;
 
@@ -2761,7 +2762,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	lrbp->lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun);
 	lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba) ? true : false;
 
-	ufshcd_prepare_lrbp_crypto(cmd->request, lrbp);
+	ufshcd_prepare_lrbp_crypto(scsi_cmd_to_rq(cmd), lrbp);
 
 	trace_android_vh_ufs_prepare_command(hba, cmd->request, lrbp, &err);
 	if (err) {
@@ -6998,7 +6999,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 {
 	struct Scsi_Host *host = cmd->device->host;
 	struct ufs_hba *hba = shost_priv(host);
-	int tag = cmd->request->tag;
+	int tag = scsi_cmd_to_rq(cmd)->tag;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
 	unsigned long flags;
 	int err = FAILED, res;
-- 
GitLab


From 14684fc39dcd5a4be833b31d72bc7ffaef4e7b0f Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Tue, 10 Aug 2021 00:55:09 -0400
Subject: [PATCH 0763/4878] UPSTREAM: scsi: ufs: ufshpb: Use scsi_cmd_to_rq()
 instead of scsi_cmnd.request

Prepare for removal of the request pointer by using scsi_cmd_to_rq()
instead. This patch does not change any functionality.

Link: https://lore.kernel.org/r/20210809230355.8186-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 12bc2f13f3813e95d7b13239291f9eb36dae83cb)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I40ce6f340cebc1d69af596b32b707b9bd4925248
---
 drivers/scsi/ufs/ufshpb.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index a3b8f2be8fba4..6f10acac31e43 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -70,13 +70,13 @@ static int ufshpb_is_valid_srgn(struct ufshpb_region *rgn,
 
 static bool ufshpb_is_read_cmd(struct scsi_cmnd *cmd)
 {
-	return req_op(cmd->request) == REQ_OP_READ;
+	return req_op(scsi_cmd_to_rq(cmd)) == REQ_OP_READ;
 }
 
 static bool ufshpb_is_write_or_discard(struct scsi_cmnd *cmd)
 {
-	return op_is_write(req_op(cmd->request)) ||
-	       op_is_discard(req_op(cmd->request));
+	return op_is_write(req_op(scsi_cmd_to_rq(cmd))) ||
+	       op_is_discard(req_op(scsi_cmd_to_rq(cmd)));
 }
 
 static bool ufshpb_is_supported_chunk(struct ufshpb_lu *hpb, int transfer_len)
@@ -516,9 +516,9 @@ static int ufshpb_execute_pre_req(struct ufshpb_lu *hpb, struct scsi_cmnd *cmd,
 
 	pre_req->hpb = hpb;
 	pre_req->wb.lpn = sectors_to_logical(cmd->device,
-					     blk_rq_pos(cmd->request));
+					     blk_rq_pos(scsi_cmd_to_rq(cmd)));
 	pre_req->wb.len = sectors_to_logical(cmd->device,
-					     blk_rq_sectors(cmd->request));
+					     blk_rq_sectors(scsi_cmd_to_rq(cmd)));
 	if (ufshpb_pre_req_add_bio_page(hpb, q, pre_req))
 		return -ENOMEM;
 
@@ -616,17 +616,17 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 		return -ENODEV;
 	}
 
-	if (blk_rq_is_scsi(cmd->request) ||
+	if (blk_rq_is_scsi(scsi_cmd_to_rq(cmd)) ||
 	    (!ufshpb_is_write_or_discard(cmd) &&
 	     !ufshpb_is_read_cmd(cmd)))
 		return 0;
 
 	transfer_len = sectors_to_logical(cmd->device,
-					  blk_rq_sectors(cmd->request));
+					  blk_rq_sectors(scsi_cmd_to_rq(cmd)));
 	if (unlikely(!transfer_len))
 		return 0;
 
-	lpn = sectors_to_logical(cmd->device, blk_rq_pos(cmd->request));
+	lpn = sectors_to_logical(cmd->device, blk_rq_pos(scsi_cmd_to_rq(cmd)));
 	ufshpb_get_pos_from_lpn(hpb, lpn, &rgn_idx, &srgn_idx, &srgn_offset);
 	rgn = hpb->rgn_tbl + rgn_idx;
 	srgn = rgn->srgn_tbl + srgn_idx;
-- 
GitLab


From 4348fcb2a8bd16eec3839901968ed545df550ef4 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 31 Aug 2021 17:53:17 +0300
Subject: [PATCH 0764/4878] UPSTREAM: scsi: ufs: ufs-pci: Fix Intel LKF link
 stability

Intel LKF can experience link errors. Make fixes to increase link
stability, especially when switching to high speed modes.

Link: https://lore.kernel.org/r/20210831145317.26306-1-adrian.hunter@intel.com
Fixes: b2c57925df1f ("scsi: ufs: ufs-pci: Add support for Intel LKF")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 1cbc9ad3eecd492be33b727b4606ae75bc880676)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I9df0fde35fd0c91abb182df3a4caa9922d679ca5
---
 drivers/scsi/ufs/ufshcd-pci.c | 78 +++++++++++++++++++++++++++++++++++
 drivers/scsi/ufs/ufshcd.c     |  3 +-
 drivers/scsi/ufs/ufshcd.h     |  1 +
 3 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index b3bcc5c882da1..149c1aa091035 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -128,6 +128,81 @@ static int ufs_intel_link_startup_notify(struct ufs_hba *hba,
 	return err;
 }
 
+static int ufs_intel_set_lanes(struct ufs_hba *hba, u32 lanes)
+{
+	struct ufs_pa_layer_attr pwr_info = hba->pwr_info;
+	int ret;
+
+	pwr_info.lane_rx = lanes;
+	pwr_info.lane_tx = lanes;
+	ret = ufshcd_config_pwr_mode(hba, &pwr_info);
+	if (ret)
+		dev_err(hba->dev, "%s: Setting %u lanes, err = %d\n",
+			__func__, lanes, ret);
+	return ret;
+}
+
+static int ufs_intel_lkf_pwr_change_notify(struct ufs_hba *hba,
+				enum ufs_notify_change_status status,
+				struct ufs_pa_layer_attr *dev_max_params,
+				struct ufs_pa_layer_attr *dev_req_params)
+{
+	int err = 0;
+
+	switch (status) {
+	case PRE_CHANGE:
+		if (ufshcd_is_hs_mode(dev_max_params) &&
+		    (hba->pwr_info.lane_rx != 2 || hba->pwr_info.lane_tx != 2))
+			ufs_intel_set_lanes(hba, 2);
+		memcpy(dev_req_params, dev_max_params, sizeof(*dev_req_params));
+		break;
+	case POST_CHANGE:
+		if (ufshcd_is_hs_mode(dev_req_params)) {
+			u32 peer_granularity;
+
+			usleep_range(1000, 1250);
+			err = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY),
+						  &peer_granularity);
+		}
+		break;
+	default:
+		break;
+	}
+
+	return err;
+}
+
+static int ufs_intel_lkf_apply_dev_quirks(struct ufs_hba *hba)
+{
+	u32 granularity, peer_granularity;
+	u32 pa_tactivate, peer_pa_tactivate;
+	int ret;
+
+	ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_GRANULARITY), &granularity);
+	if (ret)
+		goto out;
+
+	ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_GRANULARITY), &peer_granularity);
+	if (ret)
+		goto out;
+
+	ret = ufshcd_dme_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &pa_tactivate);
+	if (ret)
+		goto out;
+
+	ret = ufshcd_dme_peer_get(hba, UIC_ARG_MIB(PA_TACTIVATE), &peer_pa_tactivate);
+	if (ret)
+		goto out;
+
+	if (granularity == peer_granularity) {
+		u32 new_peer_pa_tactivate = pa_tactivate + 2;
+
+		ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(PA_TACTIVATE), new_peer_pa_tactivate);
+	}
+out:
+	return ret;
+}
+
 #define INTEL_ACTIVELTR		0x804
 #define INTEL_IDLELTR		0x808
 
@@ -351,6 +426,7 @@ static int ufs_intel_lkf_init(struct ufs_hba *hba)
 	struct ufs_host *ufs_host;
 	int err;
 
+	hba->nop_out_timeout = 200;
 	hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8;
 	hba->caps |= UFSHCD_CAP_CRYPTO;
 	err = ufs_intel_common_init(hba);
@@ -381,6 +457,8 @@ static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
 	.exit			= ufs_intel_common_exit,
 	.hce_enable_notify	= ufs_intel_hce_enable_notify,
 	.link_startup_notify	= ufs_intel_link_startup_notify,
+	.pwr_change_notify	= ufs_intel_lkf_pwr_change_notify,
+	.apply_dev_quirks	= ufs_intel_lkf_apply_dev_quirks,
 	.resume			= ufs_intel_resume,
 	.device_reset		= ufs_intel_device_reset,
 };
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 906eb2237e367..7040715c19da1 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4786,7 +4786,7 @@ static int ufshcd_verify_dev_init(struct ufs_hba *hba)
 	mutex_lock(&hba->dev_cmd.lock);
 	for (retries = NOP_OUT_RETRIES; retries > 0; retries--) {
 		err = ufshcd_exec_dev_cmd(hba, DEV_CMD_TYPE_NOP,
-					       NOP_OUT_TIMEOUT);
+					  hba->nop_out_timeout);
 
 		if (!err || err == -ETIMEDOUT)
 			break;
@@ -9365,6 +9365,7 @@ int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle)
 	hba->host = host;
 	hba->dev = dev;
 	hba->dev_ref_clk_freq = REF_CLK_FREQ_INVAL;
+	hba->nop_out_timeout = NOP_OUT_TIMEOUT;
 	hba->sg_entry_size = sizeof(struct ufshcd_sg_entry);
 	INIT_LIST_HEAD(&hba->clk_list_head);
 	spin_lock_init(&hba->outstanding_lock);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index dafc00c2bdd68..01b514d5edd11 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -912,6 +912,7 @@ struct ufs_hba {
 	/* Device management request data */
 	struct ufs_dev_cmd dev_cmd;
 	ktime_t last_dme_cmd_tstamp;
+	int nop_out_timeout;
 
 	/* Keeps information of the UFS device connected to this host */
 	struct ufs_dev_info dev_info;
-- 
GitLab


From b580032ddc26a2eb3217fa2e807ed4ffbd870013 Mon Sep 17 00:00:00 2001
From: ChanWoo Lee <cw9316.lee@samsung.com>
Date: Tue, 7 Sep 2021 13:41:11 +0900
Subject: [PATCH 0765/4878] UPSTREAM: scsi: ufs: ufs-qcom: Remove unneeded
 variable 'err'

'err' is never set in this functon. Remove the declaration and just return
0.

Link: https://lore.kernel.org/r/20210907044111.29632-1-cw9316.lee@samsung.com
Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit c4adf171e834dab8ca72676ca7264c5b50a542a8)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I1c2febf84a1130c8230923b27379ca6f18f8afb2
---
 drivers/scsi/ufs/ufs-qcom.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index a07cc1f81daef..92f5bb4965faa 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -888,7 +888,6 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
 				 enum ufs_notify_change_status status)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	int err = 0;
 
 	/*
 	 * In case ufs_qcom_init() is not yet done, simply ignore.
@@ -916,7 +915,7 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on,
 		break;
 	}
 
-	return err;
+	return 0;
 }
 
 static int
-- 
GitLab


From abe3f3623b88af66a9c784bdaf63e5d4ed5faf86 Mon Sep 17 00:00:00 2001
From: Peter Wang <peter.wang@mediatek.com>
Date: Mon, 6 Sep 2021 16:53:07 +0800
Subject: [PATCH 0766/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Change dbg
 select by check IP version

Mediatek UFS dbg select setting is changed in new IP version.  Check the IP
version before setting dbg select.

Link: https://lore.kernel.org/r/1630918387-8333-1-git-send-email-peter.wang@mediatek.com
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit aba3b0757b6cba37953bb1d7e71c460d37fd496a)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Icda3c3bbaedd3d3e1d9ed84ee069b3867e89a93f
---
 drivers/scsi/ufs/ufs-mediatek.c | 21 +++++++++++++++++++--
 drivers/scsi/ufs/ufs-mediatek.h |  6 ++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 80b3545dd17d6..d2d7e76c5ec85 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -296,6 +296,21 @@ static void ufs_mtk_setup_ref_clk_wait_us(struct ufs_hba *hba,
 	host->ref_clk_ungating_wait_us = ungating_us;
 }
 
+static void ufs_mtk_dbg_sel(struct ufs_hba *hba)
+{
+	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+
+	if (((host->ip_ver >> 16) & 0xFF) >= 0x36) {
+		ufshcd_writel(hba, 0x820820, REG_UFS_DEBUG_SEL);
+		ufshcd_writel(hba, 0x0, REG_UFS_DEBUG_SEL_B0);
+		ufshcd_writel(hba, 0x55555555, REG_UFS_DEBUG_SEL_B1);
+		ufshcd_writel(hba, 0xaaaaaaaa, REG_UFS_DEBUG_SEL_B2);
+		ufshcd_writel(hba, 0xffffffff, REG_UFS_DEBUG_SEL_B3);
+	} else {
+		ufshcd_writel(hba, 0x20, REG_UFS_DEBUG_SEL);
+	}
+}
+
 static int ufs_mtk_wait_link_state(struct ufs_hba *hba, u32 state,
 				   unsigned long max_wait_ms)
 {
@@ -305,7 +320,7 @@ static int ufs_mtk_wait_link_state(struct ufs_hba *hba, u32 state,
 	timeout = ktime_add_ms(ktime_get(), max_wait_ms);
 	do {
 		time_checked = ktime_get();
-		ufshcd_writel(hba, 0x20, REG_UFS_DEBUG_SEL);
+		ufs_mtk_dbg_sel(hba);
 		val = ufshcd_readl(hba, REG_UFS_PROBE);
 		val = val >> 28;
 
@@ -689,6 +704,8 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 	ufs_mtk_mphy_power_on(hba, true);
 	ufs_mtk_setup_clocks(hba, true, POST_CHANGE);
 
+	host->ip_ver = ufshcd_readl(hba, REG_UFS_MTK_IP_VER);
+
 	goto out;
 
 out_variant_clear:
@@ -1001,7 +1018,7 @@ static void ufs_mtk_dbg_register_dump(struct ufs_hba *hba)
 			 "MPHY Ctrl ");
 
 	/* Direct debugging information to REG_MTK_PROBE */
-	ufshcd_writel(hba, 0x20, REG_UFS_DEBUG_SEL);
+	ufs_mtk_dbg_sel(hba);
 	ufshcd_dump_regs(hba, REG_UFS_PROBE, 0x4, "Debug Probe ");
 }
 
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index 3f0d3bb769e89..524c8e2c1e6ff 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -15,9 +15,14 @@
 #define REG_UFS_REFCLK_CTRL         0x144
 #define REG_UFS_EXTREG              0x2100
 #define REG_UFS_MPHYCTRL            0x2200
+#define REG_UFS_MTK_IP_VER          0x2240
 #define REG_UFS_REJECT_MON          0x22AC
 #define REG_UFS_DEBUG_SEL           0x22C0
 #define REG_UFS_PROBE               0x22C8
+#define REG_UFS_DEBUG_SEL_B0        0x22D0
+#define REG_UFS_DEBUG_SEL_B1        0x22D4
+#define REG_UFS_DEBUG_SEL_B2        0x22D8
+#define REG_UFS_DEBUG_SEL_B3        0x22DC
 
 /*
  * Ref-clk control
@@ -113,6 +118,7 @@ struct ufs_mtk_host {
 	bool ref_clk_enabled;
 	u16 ref_clk_ungating_wait_us;
 	u16 ref_clk_gating_wait_us;
+	u32 ip_ver;
 };
 
 #endif /* !_UFS_MEDIATEK_H */
-- 
GitLab


From de5b19ec475c14668ef67b676b0b695c6817852d Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 16 Sep 2021 10:54:04 -0700
Subject: [PATCH 0767/4878] UPSTREAM: scsi: ufs: core: Unbreak the reset
 handler

A command tag is passed as the second argument of the
__ufshcd_transfer_req_compl() call in ufshcd_eh_device_reset_handler()
instead of a bitmask. Fix this by passing a bitmask as argument instead of
a command tag.

Link: https://lore.kernel.org/r/20210916175408.2260084-1-bvanassche@acm.org
Fixes: a45f937110fa ("scsi: ufs: Optimize host lock on transfer requests send/compl paths")
Cc: Can Guo <cang@codeaurora.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I53bedb5d1a253bf8b93a8beb19ac37c8a5321425
Bug: 204438323
(cherry picked from commit d04a968c33684b15d1206e23fc1119ce0f0587fb)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 7040715c19da1..2554636f0d65c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6881,7 +6881,7 @@ static int ufshcd_eh_device_reset_handler(struct scsi_cmnd *cmd)
 			err = ufshcd_clear_cmd(hba, pos);
 			if (err)
 				break;
-			__ufshcd_transfer_req_compl(hba, pos);
+			__ufshcd_transfer_req_compl(hba, 1U << pos);
 		}
 	}
 
-- 
GitLab


From bbce73fc605d2f6559e153adceeabeb05c00dab3 Mon Sep 17 00:00:00 2001
From: Avri Altman <avri.altman@wdc.com>
Date: Wed, 15 Sep 2021 09:04:06 +0300
Subject: [PATCH 0768/4878] UPSTREAM: scsi: ufs: core: Probe for temperature
 notification support

Probe the dExtendedUFSFeaturesSupport register for the device's temperature
notification support and, if supported, add a hardware monitor device.

Link: https://lore.kernel.org/r/20210915060407.40-2-avri.altman@wdc.com
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit e88e2d32200a1734cb4a2ca292c5c7b338257bb6)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I40639256cf1d2e70d5e80b09b03def001a9a5487
---
 drivers/scsi/ufs/Kconfig     |   9 ++
 drivers/scsi/ufs/Makefile    |   1 +
 drivers/scsi/ufs/ufs-hwmon.c | 198 +++++++++++++++++++++++++++++++++++
 drivers/scsi/ufs/ufs.h       |   7 ++
 drivers/scsi/ufs/ufshcd.c    |  26 +++++
 drivers/scsi/ufs/ufshcd.h    |  18 ++++
 6 files changed, 259 insertions(+)
 create mode 100644 drivers/scsi/ufs/ufs-hwmon.c

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index 432df76e6318a..565e8aa6319d4 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -199,3 +199,12 @@ config SCSI_UFS_FAULT_INJECTION
 	help
 	  Enable fault injection support in the UFS driver. This makes it easier
 	  to test the UFS error handler and abort handler.
+
+config SCSI_UFS_HWMON
+	bool "UFS  Temperature Notification"
+	depends on SCSI_UFSHCD && HWMON
+	help
+	  This provides support for UFS hardware monitoring. If enabled,
+	  a hardware monitoring device will be created for the UFS device.
+
+	  If unsure, say N.
diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
index c407da9b51713..966048875b503 100644
--- a/drivers/scsi/ufs/Makefile
+++ b/drivers/scsi/ufs/Makefile
@@ -10,6 +10,7 @@ ufshcd-core-$(CONFIG_SCSI_UFS_BSG)	+= ufs_bsg.o
 ufshcd-core-$(CONFIG_SCSI_UFS_CRYPTO)	+= ufshcd-crypto.o
 ufshcd-core-$(CONFIG_SCSI_UFS_HPB)	+= ufshpb.o
 ufshcd-core-$(CONFIG_SCSI_UFS_FAULT_INJECTION) += ufs-fault-injection.o
+ufshcd-core-$(CONFIG_SCSI_UFS_HWMON) += ufs-hwmon.o
 
 obj-$(CONFIG_SCSI_UFS_DWC_TC_PCI) += tc-dwc-g210-pci.o ufshcd-dwc.o tc-dwc-g210.o
 obj-$(CONFIG_SCSI_UFS_DWC_TC_PLATFORM) += tc-dwc-g210-pltfrm.o ufshcd-dwc.o tc-dwc-g210.o
diff --git a/drivers/scsi/ufs/ufs-hwmon.c b/drivers/scsi/ufs/ufs-hwmon.c
new file mode 100644
index 0000000000000..33b66736aaa4d
--- /dev/null
+++ b/drivers/scsi/ufs/ufs-hwmon.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * UFS hardware monitoring support
+ * Copyright (c) 2021, Western Digital Corporation
+ */
+
+#include <linux/hwmon.h>
+#include <linux/units.h>
+
+#include "ufshcd.h"
+
+struct ufs_hwmon_data {
+	struct ufs_hba *hba;
+	u8 mask;
+};
+
+static int ufs_read_temp_enable(struct ufs_hba *hba, u8 mask, long *val)
+{
+	u32 ee_mask;
+	int err;
+
+	err = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, QUERY_ATTR_IDN_EE_CONTROL, 0, 0,
+				&ee_mask);
+	if (err)
+		return err;
+
+	*val = (mask & ee_mask & MASK_EE_TOO_HIGH_TEMP) || (mask & ee_mask & MASK_EE_TOO_LOW_TEMP);
+
+	return 0;
+}
+
+static int ufs_get_temp(struct ufs_hba *hba, enum attr_idn idn, long *val)
+{
+	u32 value;
+	int err;
+
+	err = ufshcd_query_attr(hba, UPIU_QUERY_OPCODE_READ_ATTR, idn, 0, 0, &value);
+	if (err)
+		return err;
+
+	if (value == 0)
+		return -ENODATA;
+
+	*val = ((long)value - 80) * MILLIDEGREE_PER_DEGREE;
+
+	return 0;
+}
+
+static int ufs_hwmon_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
+			  long *val)
+{
+	struct ufs_hwmon_data *data = dev_get_drvdata(dev);
+	struct ufs_hba *hba = data->hba;
+	int err;
+
+	down(&hba->host_sem);
+
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		up(&hba->host_sem);
+		return -EBUSY;
+	}
+
+	ufshcd_rpm_get_sync(hba);
+
+	switch (attr) {
+	case hwmon_temp_enable:
+		err = ufs_read_temp_enable(hba, data->mask, val);
+
+		break;
+	case hwmon_temp_crit:
+		err = ufs_get_temp(hba, QUERY_ATTR_IDN_HIGH_TEMP_BOUND, val);
+
+		break;
+	case hwmon_temp_lcrit:
+		err = ufs_get_temp(hba, QUERY_ATTR_IDN_LOW_TEMP_BOUND, val);
+
+		break;
+	case hwmon_temp_input:
+		err = ufs_get_temp(hba, QUERY_ATTR_IDN_CASE_ROUGH_TEMP, val);
+
+		break;
+	default:
+		err = -EOPNOTSUPP;
+
+		break;
+	}
+
+	ufshcd_rpm_put_sync(hba);
+
+	up(&hba->host_sem);
+
+	return err;
+}
+
+static int ufs_hwmon_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
+			   long val)
+{
+	struct ufs_hwmon_data *data = dev_get_drvdata(dev);
+	struct ufs_hba *hba = data->hba;
+	int err;
+
+	if (attr != hwmon_temp_enable)
+		return -EINVAL;
+
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	down(&hba->host_sem);
+
+	if (!ufshcd_is_user_access_allowed(hba)) {
+		up(&hba->host_sem);
+		return -EBUSY;
+	}
+
+	ufshcd_rpm_get_sync(hba);
+
+	if (val == 1)
+		err = ufshcd_update_ee_usr_mask(hba, MASK_EE_URGENT_TEMP, 0);
+	else
+		err = ufshcd_update_ee_usr_mask(hba, 0, MASK_EE_URGENT_TEMP);
+
+	ufshcd_rpm_put_sync(hba);
+
+	up(&hba->host_sem);
+
+	return err;
+}
+
+static umode_t ufs_hwmon_is_visible(const void *_data, enum hwmon_sensor_types type, u32 attr,
+				    int channel)
+{
+	if (type != hwmon_temp)
+		return 0;
+
+	switch (attr) {
+	case hwmon_temp_enable:
+		return 0644;
+	case hwmon_temp_crit:
+	case hwmon_temp_lcrit:
+	case hwmon_temp_input:
+		return 0444;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static const struct hwmon_channel_info *ufs_hwmon_info[] = {
+	HWMON_CHANNEL_INFO(temp, HWMON_T_ENABLE | HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_LCRIT),
+	NULL
+};
+
+static const struct hwmon_ops ufs_hwmon_ops = {
+	.is_visible	= ufs_hwmon_is_visible,
+	.read		= ufs_hwmon_read,
+	.write		= ufs_hwmon_write,
+};
+
+static const struct hwmon_chip_info ufs_hwmon_hba_info = {
+	.ops	= &ufs_hwmon_ops,
+	.info	= ufs_hwmon_info,
+};
+
+void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask)
+{
+	struct device *dev = hba->dev;
+	struct ufs_hwmon_data *data;
+	struct device *hwmon;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return;
+
+	data->hba = hba;
+	data->mask = mask;
+
+	hwmon = hwmon_device_register_with_info(dev, "ufs", data, &ufs_hwmon_hba_info, NULL);
+	if (IS_ERR(hwmon)) {
+		dev_warn(dev, "Failed to instantiate hwmon device\n");
+		kfree(data);
+		return;
+	}
+
+	hba->hwmon_device = hwmon;
+}
+
+void ufs_hwmon_remove(struct ufs_hba *hba)
+{
+	struct ufs_hwmon_data *data;
+
+	if (!hba->hwmon_device)
+		return;
+
+	data = dev_get_drvdata(hba->hwmon_device);
+	hwmon_device_unregister(hba->hwmon_device);
+	hba->hwmon_device = NULL;
+	kfree(data);
+}
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index f56150d06a0ab..b3c792fc7bad6 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -153,6 +153,9 @@ enum attr_idn {
 	QUERY_ATTR_IDN_PSA_STATE		= 0x15,
 	QUERY_ATTR_IDN_PSA_DATA_SIZE		= 0x16,
 	QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME	= 0x17,
+	QUERY_ATTR_IDN_CASE_ROUGH_TEMP          = 0x18,
+	QUERY_ATTR_IDN_HIGH_TEMP_BOUND          = 0x19,
+	QUERY_ATTR_IDN_LOW_TEMP_BOUND           = 0x1A,
 	QUERY_ATTR_IDN_WB_FLUSH_STATUS	        = 0x1C,
 	QUERY_ATTR_IDN_AVAIL_WB_BUFF_SIZE       = 0x1D,
 	QUERY_ATTR_IDN_WB_BUFF_LIFE_TIME_EST    = 0x1E,
@@ -339,6 +342,9 @@ enum {
 
 /* Possible values for dExtendedUFSFeaturesSupport */
 enum {
+	UFS_DEV_LOW_TEMP_NOTIF		= BIT(4),
+	UFS_DEV_HIGH_TEMP_NOTIF		= BIT(5),
+	UFS_DEV_EXT_TEMP_NOTIF		= BIT(6),
 	UFS_DEV_HPB_SUPPORT		= BIT(7),
 	UFS_DEV_WRITE_BOOSTER_SUP	= BIT(8),
 };
@@ -371,6 +377,7 @@ enum {
 	MASK_EE_WRITEBOOSTER_EVENT	= BIT(5),
 	MASK_EE_PERFORMANCE_THROTTLING	= BIT(6),
 };
+#define MASK_EE_URGENT_TEMP (MASK_EE_TOO_HIGH_TEMP | MASK_EE_TOO_LOW_TEMP)
 
 /* Background operation status */
 enum bkops_status {
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2554636f0d65c..f093acef8fe1d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7459,6 +7459,29 @@ wb_disabled:
 	hba->caps &= ~UFSHCD_CAP_WB_EN;
 }
 
+static void ufshcd_temp_notif_probe(struct ufs_hba *hba, u8 *desc_buf)
+{
+	struct ufs_dev_info *dev_info = &hba->dev_info;
+	u32 ext_ufs_feature;
+	u8 mask = 0;
+
+	if (!(hba->caps & UFSHCD_CAP_TEMP_NOTIF) || dev_info->wspecversion < 0x300)
+		return;
+
+	ext_ufs_feature = get_unaligned_be32(desc_buf + DEVICE_DESC_PARAM_EXT_UFS_FEATURE_SUP);
+
+	if (ext_ufs_feature & UFS_DEV_LOW_TEMP_NOTIF)
+		mask |= MASK_EE_TOO_LOW_TEMP;
+
+	if (ext_ufs_feature & UFS_DEV_HIGH_TEMP_NOTIF)
+		mask |= MASK_EE_TOO_HIGH_TEMP;
+
+	if (mask) {
+		ufshcd_enable_ee(hba, mask);
+		ufs_hwmon_probe(hba, mask);
+	}
+}
+
 void ufshcd_fixup_dev_quirks(struct ufs_hba *hba, struct ufs_dev_fix *fixups)
 {
 	struct ufs_dev_fix *f;
@@ -7554,6 +7577,8 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
 
 	ufshcd_wb_probe(hba, desc_buf);
 
+	ufshcd_temp_notif_probe(hba, desc_buf);
+
 	/*
 	 * ufshcd_read_string_desc returns size of the string
 	 * reset the error value
@@ -9295,6 +9320,7 @@ void ufshcd_remove(struct ufs_hba *hba)
 {
 	if (hba->sdev_ufs_device)
 		ufshcd_rpm_get_sync(hba);
+	ufs_hwmon_remove(hba);
 	ufs_bsg_remove(hba);
 	ufshpb_remove(hba);
 	ufs_sysfs_remove_nodes(hba->dev);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 01b514d5edd11..2ded6b6dc8590 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -700,6 +700,12 @@ enum ufshcd_caps {
 	 * in order to exit DeepSleep state.
 	 */
 	UFSHCD_CAP_DEEPSLEEP				= 1 << 10,
+
+	/*
+	 * This capability allows the host controller driver to use temperature
+	 * notification if it is supported by the UFS device.
+	 */
+	UFSHCD_CAP_TEMP_NOTIF				= 1 << 11,
 };
 
 struct ufs_hba_variant_params {
@@ -839,6 +845,10 @@ struct ufs_hba {
 	struct scsi_device *sdev_ufs_device;
 	struct scsi_device *sdev_rpmb;
 
+#ifdef CONFIG_SCSI_UFS_HWMON
+	struct device *hwmon_device;
+#endif
+
 	enum ufs_dev_pwr_mode curr_dev_pwr_mode;
 	enum uic_link_state uic_link_state;
 	/* Desired UFS power management level during runtime PM */
@@ -1108,6 +1118,14 @@ static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 	return 0;
 }
 
+#ifdef CONFIG_SCSI_UFS_HWMON
+void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask);
+void ufs_hwmon_remove(struct ufs_hba *hba);
+#else
+static inline void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask) {}
+static inline void ufs_hwmon_remove(struct ufs_hba *hba) {}
+#endif
+
 #ifdef CONFIG_PM
 extern int ufshcd_runtime_suspend(struct device *dev);
 extern int ufshcd_runtime_resume(struct device *dev);
-- 
GitLab


From 061f8675097c911f3735717eeb86d762c6663f8e Mon Sep 17 00:00:00 2001
From: Avri Altman <avri.altman@wdc.com>
Date: Wed, 15 Sep 2021 09:04:07 +0300
Subject: [PATCH 0769/4878] UPSTREAM: scsi: ufs: core: Add temperature
 notification exception handling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The device may notify the host of an extreme temperature by using the
exception event mechanism. The exception can be raised when the device’s
Tcase temperature is either too high or too low.

It is essentially up to the platform to decide what further actions need to
be taken. leave a placeholder for a designated vop for that.

Link: https://lore.kernel.org/r/20210915060407.40-3-avri.altman@wdc.com
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 322c4b29ee1f19ce153f027bfb21d272b029f2d7)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Iaf049a274fb4be5c3bffd92fa2651ed50b16ca29
---
 drivers/scsi/ufs/ufs-hwmon.c | 12 ++++++++++++
 drivers/scsi/ufs/ufshcd.c    | 21 +++++++++++++++++++++
 drivers/scsi/ufs/ufshcd.h    |  2 ++
 3 files changed, 35 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-hwmon.c b/drivers/scsi/ufs/ufs-hwmon.c
index 33b66736aaa4d..74855491dc8f6 100644
--- a/drivers/scsi/ufs/ufs-hwmon.c
+++ b/drivers/scsi/ufs/ufs-hwmon.c
@@ -196,3 +196,15 @@ void ufs_hwmon_remove(struct ufs_hba *hba)
 	hba->hwmon_device = NULL;
 	kfree(data);
 }
+
+void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask)
+{
+	if (!hba->hwmon_device)
+		return;
+
+	if (ee_mask & MASK_EE_TOO_HIGH_TEMP)
+		hwmon_notify_event(hba->hwmon_device, hwmon_temp, hwmon_temp_max_alarm, 0);
+
+	if (ee_mask & MASK_EE_TOO_LOW_TEMP)
+		hwmon_notify_event(hba->hwmon_device, hwmon_temp, hwmon_temp_min_alarm, 0);
+}
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index f093acef8fe1d..8ec87258ceaf5 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5652,6 +5652,24 @@ out:
 				__func__, err);
 }
 
+static void ufshcd_temp_exception_event_handler(struct ufs_hba *hba, u16 status)
+{
+	u32 value;
+
+	if (ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
+				QUERY_ATTR_IDN_CASE_ROUGH_TEMP, 0, 0, &value))
+		return;
+
+	dev_info(hba->dev, "exception Tcase %d\n", value - 80);
+
+	ufs_hwmon_notify_event(hba, status & MASK_EE_URGENT_TEMP);
+
+	/*
+	 * A placeholder for the platform vendors to add whatever additional
+	 * steps required
+	 */
+}
+
 static int __ufshcd_wb_toggle(struct ufs_hba *hba, bool set, enum flag_idn idn)
 {
 	u8 index;
@@ -5831,6 +5849,9 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 	if (status & hba->ee_drv_mask & MASK_EE_URGENT_BKOPS)
 		ufshcd_bkops_exception_event_handler(hba);
 
+	if (status & hba->ee_drv_mask & MASK_EE_URGENT_TEMP)
+		ufshcd_temp_exception_event_handler(hba, status);
+
 	ufs_debugfs_exception_event(hba, status);
 out:
 	ufshcd_scsi_unblock_requests(hba);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 2ded6b6dc8590..e02ea6f3e18eb 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1121,9 +1121,11 @@ static inline u8 ufshcd_wb_get_query_index(struct ufs_hba *hba)
 #ifdef CONFIG_SCSI_UFS_HWMON
 void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask);
 void ufs_hwmon_remove(struct ufs_hba *hba);
+void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask);
 #else
 static inline void ufs_hwmon_probe(struct ufs_hba *hba, u8 mask) {}
 static inline void ufs_hwmon_remove(struct ufs_hba *hba) {}
+static inline void ufs_hwmon_notify_event(struct ufs_hba *hba, u8 ee_mask) {}
 #endif
 
 #ifdef CONFIG_PM
-- 
GitLab


From 61a867f35051996aec17c3580d57af84459de991 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Fri, 24 Sep 2021 15:26:58 +0200
Subject: [PATCH 0770/4878] UPSTREAM: scsi: ufs: exynos: Unify naming

Use "Samsung" and "Exynos", not the uppercase versions.

Link: https://lore.kernel.org/r/20210924132658.109814-2-krzysztof.kozlowski@canonical.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit ce580e47e8481047faf296757d747e95464ff71c)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I8baf39fa0c17a5a3760836067e993a8fbbdf5398
---
 drivers/scsi/ufs/Kconfig | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index 565e8aa6319d4..af66cb3634a80 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -165,14 +165,14 @@ config SCSI_UFS_BSG
 	  If unsure, say N.
 
 config SCSI_UFS_EXYNOS
-	tristate "EXYNOS specific hooks to UFS controller platform driver"
+	tristate "Exynos specific hooks to UFS controller platform driver"
 	depends on SCSI_UFSHCD_PLATFORM && (ARCH_EXYNOS || COMPILE_TEST)
 	help
-	  This selects the EXYNOS specific additions to UFSHCD platform driver.
-	  UFS host on EXYNOS includes HCI and UNIPRO layer, and associates with
-	  UFS-PHY driver.
+	  This selects the Samsung Exynos SoC specific additions to UFSHCD
+	  platform driver.  UFS host on Samsung Exynos SoC includes HCI and
+	  UNIPRO layer, and associates with UFS-PHY driver.
 
-	  Select this if you have UFS host controller on EXYNOS chipset.
+	  Select this if you have UFS host controller on Samsung Exynos SoC.
 	  If unsure, say N.
 
 config SCSI_UFS_CRYPTO
-- 
GitLab


From 558e6162fe252d24a9ed23d5eefa1bde2a89feee Mon Sep 17 00:00:00 2001
From: Anders Roxell <anders.roxell@linaro.org>
Date: Mon, 27 Sep 2021 10:46:15 +0200
Subject: [PATCH 0771/4878] UPSTREAM: scsi: ufs: core: SCSI_UFS_HWMON depends
 on HWMON=y

When building an allmodconfig kernel, the following build error shows up:

aarch64-linux-gnu-ld: drivers/scsi/ufs/ufs-hwmon.o: in function `ufs_hwmon_probe':
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:177: undefined reference to `hwmon_device_register_with_info'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:177:(.text+0x510): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_device_register_with_info'
aarch64-linux-gnu-ld: drivers/scsi/ufs/ufs-hwmon.o: in function `ufs_hwmon_remove':
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:195: undefined reference to `hwmon_device_unregister'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:195:(.text+0x5c8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_device_unregister'
aarch64-linux-gnu-ld: drivers/scsi/ufs/ufs-hwmon.o: in function `ufs_hwmon_notify_event':
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:206: undefined reference to `hwmon_notify_event'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:206:(.text+0x64c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_notify_event'
aarch64-linux-gnu-ld: /home/anders/src/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:209: undefined reference to `hwmon_notify_event'
/kernel/next/drivers/scsi/ufs/ufs-hwmon.c:209:(.text+0x66c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `hwmon_notify_event'

Since SCSI_UFS_HWMON can't be built as a module, SCSI_UFS_HWMON has to
depend on HWMON=y.

Link: https://lore.kernel.org/r/20210927084615.1938432-1-anders.roxell@linaro.org
Fixes: e88e2d32200a ("scsi: ufs: core: Probe for temperature notification support")
Also-reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 60c98a87fcaad9e71b835d2096e6665543cfe2e1)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I233fa50a3b5ba54b609c05b3b271276db6339afb
---
 drivers/scsi/ufs/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index af66cb3634a80..b2521b830be72 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -202,7 +202,7 @@ config SCSI_UFS_FAULT_INJECTION
 
 config SCSI_UFS_HWMON
 	bool "UFS  Temperature Notification"
-	depends on SCSI_UFSHCD && HWMON
+	depends on SCSI_UFSHCD=HWMON || HWMON=y
 	help
 	  This provides support for UFS hardware monitoring. If enabled,
 	  a hardware monitoring device will be created for the UFS device.
-- 
GitLab


From 1da235a555cd187b29f0cc97151396217ed13832 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Wed, 29 Sep 2021 22:06:39 +0200
Subject: [PATCH 0772/4878] UPSTREAM: scsi: ufs: core: Fix ufshcd_probe_hba()
 prototype to match the definition

Since commit 568dd9959611 ("scsi: ufs: Rename the second ufshcd_probe_hba()
argument"), the second ufshcd_probe_hba() argument has been changed to
init_dev_params.

Link: https://lore.kernel.org/r/20210929200640.828611-3-huobean@gmail.com
Fixes: 568dd9959611 ("scsi: ufs: Rename the second ufshcd_probe_hba() argument")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: I04365efcd6f0e4154f280eb66bd01590100009ad
Bug: 204438323
(cherry picked from commit 68444d73d6a5864ede12df6366bd6602e022ae5b)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8ec87258ceaf5..ce0657f7bbe85 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -225,7 +225,7 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba);
 static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd);
 static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag);
 static void ufshcd_hba_exit(struct ufs_hba *hba);
-static int ufshcd_probe_hba(struct ufs_hba *hba, bool async);
+static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params);
 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
 static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
 static int ufshcd_host_reset_and_restore(struct ufs_hba *hba);
-- 
GitLab


From e2919fba76583e730d4c6644448137dc3ac80942 Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Wed, 29 Sep 2021 22:06:40 +0200
Subject: [PATCH 0773/4878] UPSTREAM: scsi: ufs: core: Remove return statement
 in void function

Return statement is not useful at the end of "void" function.

Link: https://lore.kernel.org/r/20210929200640.828611-4-huobean@gmail.com
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit f44abcfc3f9f570970f71e790ec625cf26a27021)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I33a7a6dfbecb50baf017185b30e97089bb266e71
---
 drivers/scsi/ufs/ufshcd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ce0657f7bbe85..dc0d912478b84 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5855,7 +5855,6 @@ static void ufshcd_exception_event_handler(struct work_struct *work)
 	ufs_debugfs_exception_event(hba, status);
 out:
 	ufshcd_scsi_unblock_requests(hba);
-	return;
 }
 
 /* Complete requests that have door-bell cleared */
-- 
GitLab


From ccba7d5b8e1cf9ab956adb5b07e1a7903f71fa43 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Sat, 2 Oct 2021 18:45:49 +0300
Subject: [PATCH 0774/4878] UPSTREAM: scsi: ufs: core: Do not exit
 ufshcd_reset_and_restore() unless operational or dead

Callers of ufshcd_reset_and_restore() expect it to return in an operational
state. However, the code only checks direct errors and so the ufshcd_state
may not be UFSHCD_STATE_OPERATIONAL due to error interrupts.

Fix by also checking ufshcd_state, still allowing non-fatal errors which
are left for the error handler to deal with.

Link: https://lore.kernel.org/r/20211002154550.128511-2-adrian.hunter@intel.com
Reviewed-by: Avri altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 54a4045342a8bffabde1827bfd6d86b63163111d)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: Ibfa8f43aaa256c96efbfcb8e185067beb655d603
---
 drivers/scsi/ufs/ufshcd.c | 36 +++++++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index dc0d912478b84..98eecd28d626a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7157,31 +7157,41 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba)
  */
 static int ufshcd_reset_and_restore(struct ufs_hba *hba)
 {
-	u32 saved_err;
-	u32 saved_uic_err;
+	u32 saved_err = 0;
+	u32 saved_uic_err = 0;
 	int err = 0;
 	unsigned long flags;
 	int retries = MAX_HOST_RESET_RETRIES;
 
-	/*
-	 * This is a fresh start, cache and clear saved error first,
-	 * in case new error generated during reset and restore.
-	 */
 	spin_lock_irqsave(hba->host->host_lock, flags);
-	saved_err = hba->saved_err;
-	saved_uic_err = hba->saved_uic_err;
-	hba->saved_err = 0;
-	hba->saved_uic_err = 0;
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
-
 	do {
+		/*
+		 * This is a fresh start, cache and clear saved error first,
+		 * in case new error generated during reset and restore.
+		 */
+		saved_err |= hba->saved_err;
+		saved_uic_err |= hba->saved_uic_err;
+		hba->saved_err = 0;
+		hba->saved_uic_err = 0;
+		hba->force_reset = false;
+		hba->ufshcd_state = UFSHCD_STATE_RESET;
+		spin_unlock_irqrestore(hba->host->host_lock, flags);
+
 		/* Reset the attached device */
 		ufshcd_device_reset(hba);
 
 		err = ufshcd_host_reset_and_restore(hba);
+
+		spin_lock_irqsave(hba->host->host_lock, flags);
+		if (err)
+			continue;
+		/* Do not exit unless operational or dead */
+		if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL &&
+		    hba->ufshcd_state != UFSHCD_STATE_ERROR &&
+		    hba->ufshcd_state != UFSHCD_STATE_EH_SCHEDULED_NON_FATAL)
+			err = -EAGAIN;
 	} while (err && --retries);
 
-	spin_lock_irqsave(hba->host->host_lock, flags);
 	/*
 	 * Inform scsi mid-layer that we did reset and allow to handle
 	 * Unit Attention properly.
-- 
GitLab


From 23dd19247d2ce47196611fcb55131632dce39de7 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Sat, 2 Oct 2021 18:45:50 +0300
Subject: [PATCH 0775/4878] UPSTREAM: scsi: ufs: core: Do not exit
 ufshcd_err_handler() unless operational or dead

Callers of ufshcd_err_handler() expect it to return in an operational
state. However, the code does not check the state before exiting.

Add a check for the state and perform retries until either success or the
maximum number of retries is reached.

Link: https://lore.kernel.org/r/20211002154550.128511-3-adrian.hunter@intel.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change-Id: Ib3818dd4fd956837418218b37f39ee837438a2be
Bug: 204438323
(cherry picked from commit 87bf6a6bbe8bd62b5924b00161d28a0d6df151ca)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 98eecd28d626a..0aefa399f4250 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -65,6 +65,9 @@
 /* maximum number of reset retries before giving up */
 #define MAX_HOST_RESET_RETRIES 5
 
+/* Maximum number of error handler retries before giving up */
+#define MAX_ERR_HANDLER_RETRIES 5
+
 /* Expose the flag value from utp_upiu_query.value */
 #define MASK_QUERY_UPIU_FLAG_LOC 0xFF
 
@@ -6092,13 +6095,15 @@ static bool ufshcd_is_pwr_mode_restore_needed(struct ufs_hba *hba)
  */
 static void ufshcd_err_handler(struct work_struct *work)
 {
+	int retries = MAX_ERR_HANDLER_RETRIES;
 	struct ufs_hba *hba;
 	unsigned long flags;
-	bool err_xfer = false;
-	bool err_tm = false;
-	int err = 0, pmc_err;
+	bool needs_restore;
+	bool needs_reset;
+	bool err_xfer;
+	bool err_tm;
+	int pmc_err;
 	int tag;
-	bool needs_reset = false, needs_restore = false;
 
 	hba = container_of(work, struct ufs_hba, eh_work);
 
@@ -6117,6 +6122,12 @@ static void ufshcd_err_handler(struct work_struct *work)
 	/* Complete requests that have door-bell cleared by h/w */
 	ufshcd_complete_requests(hba);
 	spin_lock_irqsave(hba->host->host_lock, flags);
+again:
+	needs_restore = false;
+	needs_reset = false;
+	err_xfer = false;
+	err_tm = false;
+
 	if (hba->ufshcd_state != UFSHCD_STATE_ERROR)
 		hba->ufshcd_state = UFSHCD_STATE_RESET;
 	/*
@@ -6238,6 +6249,8 @@ lock_skip_pending_xfer_clear:
 do_reset:
 	/* Fatal errors need reset */
 	if (needs_reset) {
+		int err;
+
 		hba->force_reset = false;
 		spin_unlock_irqrestore(hba->host->host_lock, flags);
 		err = ufshcd_reset_and_restore(hba);
@@ -6257,6 +6270,13 @@ skip_err_handling:
 			dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x",
 			    __func__, hba->saved_err, hba->saved_uic_err);
 	}
+	/* Exit in an operational state or dead */
+	if (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL &&
+	    hba->ufshcd_state != UFSHCD_STATE_ERROR) {
+		if (--retries)
+			goto again;
+		hba->ufshcd_state = UFSHCD_STATE_ERROR;
+	}
 	ufshcd_clear_eh_in_progress(hba);
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 	ufshcd_err_handling_unprepare(hba);
-- 
GitLab


From 69d296ea60f3234767c7070c51d9a38c4386a892 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 14:47:46 -0700
Subject: [PATCH 0776/4878] ANDROID: scsi: ufs: Remove a blank line

There is no blank line in the upstream code above the luns_avail
declaration. Hence this patch.

Bug: 204438323
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I79927cc14cc011c87eb96ca8847f0bd6a046bb40
---
 drivers/scsi/ufs/ufshcd.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index e02ea6f3e18eb..8cc81db019315 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -974,7 +974,6 @@ struct ufs_hba {
 	struct delayed_work debugfs_ee_work;
 	u32 debugfs_ee_rate_limit_ms;
 #endif
-
 	u32 luns_avail;
 	bool complete_put;
 	bool rpmb_complete_put;
-- 
GitLab


From 6e41c820f6af0ba512ac4920dc588486049c842e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 15:56:10 -0700
Subject: [PATCH 0777/4878] ANDROID: scsi: ufs: Remove a local variable from
 ufshcd_abort()

Bring the Android code in sync with the upstream code. This patch does
not change any functionality.

Bug: 204438323
Change-Id: I8fe9f9f3c7d39feb1e211a6b6dc00d6e638ef1b4
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0aefa399f4250..a341b3b1b14d2 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7042,7 +7042,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 	int tag = scsi_cmd_to_rq(cmd)->tag;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
 	unsigned long flags;
-	int err = FAILED, res;
+	int err = FAILED;
 	u32 reg;
 
 	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
@@ -7112,10 +7112,11 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 		goto release;
 	}
 
-	res = ufshcd_try_to_abort_task(hba, tag);
-	if (res) {
-		dev_err(hba->dev, "%s: failed with err %d\n", __func__, res);
+	err = ufshcd_try_to_abort_task(hba, tag);
+	if (err) {
+		dev_err(hba->dev, "%s: failed with err %d\n", __func__, err);
 		ufshcd_set_req_abort_skip(hba, hba->outstanding_reqs);
+		err = FAILED;
 		goto release;
 	}
 
-- 
GitLab


From 568dd97549a68199079fcc46fee2b589a9c67482 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 16:04:57 -0700
Subject: [PATCH 0778/4878] ANDROID: scsi: ufs: Remove the
 ufs_rpmb_wlun_template

The upstream commit edc0596cc04b ("scsi: ufs: core: Stop clearing UNIT
ATTENTIONS") removed the ufs_rpmb_wlun_template but its Android backport
not. Hence this patch that removes the ufs_rpmb_wlun_template.

Bug: 204438323
Change-Id: I86206399a9745e26ad5f84c2cac2179a37ba80e7
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 57 +--------------------------------------
 drivers/scsi/ufs/ufshcd.h | 11 --------
 2 files changed, 1 insertion(+), 67 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a341b3b1b14d2..bb87889f60e92 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9694,10 +9694,6 @@ void ufshcd_resume_complete(struct device *dev)
 		ufshcd_rpm_put(hba);
 		hba->complete_put = false;
 	}
-	if (hba->rpmb_complete_put) {
-		ufshcd_rpmb_rpm_put(hba);
-		hba->rpmb_complete_put = false;
-	}
 }
 EXPORT_SYMBOL_GPL(ufshcd_resume_complete);
 
@@ -9720,10 +9716,6 @@ int ufshcd_suspend_prepare(struct device *dev)
 		}
 		hba->complete_put = true;
 	}
-	if (hba->sdev_rpmb) {
-		ufshcd_rpmb_rpm_get_sync(hba);
-		hba->rpmb_complete_put = true;
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ufshcd_suspend_prepare);
@@ -9792,42 +9784,6 @@ static struct scsi_driver ufs_dev_wlun_template = {
 	},
 };
 
-static int ufshcd_rpmb_probe(struct device *dev)
-{
-	return is_rpmb_wlun(to_scsi_device(dev)) ? 0 : -ENODEV;
-}
-
-static inline int ufshcd_clear_rpmb_uac(struct ufs_hba *hba)
-{
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ufshcd_rpmb_resume(struct device *dev)
-{
-	struct ufs_hba *hba = wlun_dev_to_hba(dev);
-
-	if (hba->sdev_rpmb)
-		ufshcd_clear_rpmb_uac(hba);
-	return 0;
-}
-#endif
-
-static const struct dev_pm_ops ufs_rpmb_pm_ops = {
-	SET_RUNTIME_PM_OPS(NULL, ufshcd_rpmb_resume, NULL)
-	SET_SYSTEM_SLEEP_PM_OPS(NULL, ufshcd_rpmb_resume)
-};
-
-/* ufs_rpmb_wlun_template - Describes UFS RPMB WLUN. Used only to send UAC. */
-static struct scsi_driver ufs_rpmb_wlun_template = {
-	.gendrv = {
-		.name = "ufs_rpmb_wlun",
-		.owner = THIS_MODULE,
-		.probe = ufshcd_rpmb_probe,
-		.pm = &ufs_rpmb_pm_ops,
-	},
-};
-
 static int __init ufshcd_core_init(void)
 {
 	int ret;
@@ -9836,24 +9792,13 @@ static int __init ufshcd_core_init(void)
 
 	ret = scsi_register_driver(&ufs_dev_wlun_template.gendrv);
 	if (ret)
-		goto debugfs_exit;
-
-	ret = scsi_register_driver(&ufs_rpmb_wlun_template.gendrv);
-	if (ret)
-		goto unregister;
-
-	return ret;
-unregister:
-	scsi_unregister_driver(&ufs_dev_wlun_template.gendrv);
-debugfs_exit:
-	ufs_debugfs_exit();
+		ufs_debugfs_exit();
 	return ret;
 }
 
 static void __exit ufshcd_core_exit(void)
 {
 	ufs_debugfs_exit();
-	scsi_unregister_driver(&ufs_rpmb_wlun_template.gendrv);
 	scsi_unregister_driver(&ufs_dev_wlun_template.gendrv);
 }
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 8cc81db019315..b34c084536a7d 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -976,7 +976,6 @@ struct ufs_hba {
 #endif
 	u32 luns_avail;
 	bool complete_put;
-	bool rpmb_complete_put;
 
 	ANDROID_KABI_RESERVE(1);
 	ANDROID_KABI_RESERVE(2);
@@ -1468,14 +1467,4 @@ static inline int ufshcd_rpm_put(struct ufs_hba *hba)
 	return pm_runtime_put(&hba->sdev_ufs_device->sdev_gendev);
 }
 
-static inline int ufshcd_rpmb_rpm_get_sync(struct ufs_hba *hba)
-{
-	return pm_runtime_get_sync(&hba->sdev_rpmb->sdev_gendev);
-}
-
-static inline int ufshcd_rpmb_rpm_put(struct ufs_hba *hba)
-{
-	return pm_runtime_put(&hba->sdev_rpmb->sdev_gendev);
-}
-
 #endif /* End of Header */
-- 
GitLab


From bdb2117c28ce3335a3c43e2271d3de72b10bdea1 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 15:59:06 -0700
Subject: [PATCH 0779/4878] ANDROID: scsi: ufs: Re-enable runtime power
 management

Android commit e7d848c921cf ("FROMLIST: scsi: ufs: Fix deadlock while
suspending ufs host") disabled runtime power management. Re-enable
runtime power management since runtime power management support has
been fixed after that commit was merged.

Bug: 204438323
Change-Id: I4d473262e90f242bc55eaa07b8a3bf7ab47c1a65
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index bb87889f60e92..ea87b6a31fd8d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7382,6 +7382,16 @@ out:
 	kfree(desc_buf);
 }
 
+static inline void ufshcd_blk_pm_runtime_init(struct scsi_device *sdev)
+{
+	scsi_autopm_get_device(sdev);
+	blk_pm_runtime_init(sdev->request_queue, &sdev->sdev_gendev);
+	if (sdev->rpm_autosuspend)
+		pm_runtime_set_autosuspend_delay(&sdev->sdev_gendev,
+						 RPM_AUTOSUSPEND_DELAY_MS);
+	scsi_autopm_put_device(sdev);
+}
+
 /**
  * ufshcd_scsi_add_wlus - Adds required W-LUs
  * @hba: per-adapter instance
@@ -7428,14 +7438,17 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
 		ret = PTR_ERR(hba->sdev_rpmb);
 		goto remove_sdev_ufs_device;
 	}
+	ufshcd_blk_pm_runtime_init(hba->sdev_rpmb);
 	scsi_device_put(hba->sdev_rpmb);
 
 	sdev_boot = __scsi_add_device(hba->host, 0, 0,
 		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_BOOT_WLUN), NULL);
-	if (IS_ERR(sdev_boot))
+	if (IS_ERR(sdev_boot)) {
 		dev_err(hba->dev, "%s: BOOT WLUN not found\n", __func__);
-	else
+	} else {
+		ufshcd_blk_pm_runtime_init(sdev_boot);
 		scsi_device_put(sdev_boot);
+	}
 	goto out;
 
 remove_sdev_ufs_device:
-- 
GitLab


From 42953530996c0659cbc0bbe9b75f078cb5216594 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 28 Oct 2021 15:57:03 -0700
Subject: [PATCH 0780/4878] ANDROID: scsi: ufs: Align the HPB calls with the
 upstream code

The Android UFS driver calls the HPB functions in a different way than
the upstream UFS driver. Align the Android UFS driver with the upstream
driver.

Bug: 204438323
Change-Id: Ia98f96c86768db8f995ba31cbac20e76e7201e2b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ea87b6a31fd8d..fdd7b5d33d978 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7142,11 +7142,11 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba)
 {
 	int err;
 
-	ufshpb_reset_host(hba);
 	/*
 	 * Stop the host controller and complete the requests
 	 * cleared by h/w
 	 */
+	ufshpb_reset_host(hba);
 	ufshcd_hba_stop(hba);
 	hba->silence_err_logs = true;
 	ufshcd_complete_requests(hba);
@@ -8943,7 +8943,6 @@ enable_scaling:
 		ufshcd_clk_scaling_suspend(hba, false);
 
 	hba->dev_info.b_rpm_dev_flush_capable = false;
-	ufshpb_resume(hba);
 out:
 	if (hba->dev_info.b_rpm_dev_flush_capable) {
 		schedule_delayed_work(&hba->rpm_dev_flush_recheck_work,
@@ -8954,6 +8953,7 @@ out:
 		ufshcd_update_evt_hist(hba, UFS_EVT_WL_SUSP_ERR, (u32)ret);
 		hba->clk_gating.is_suspended = false;
 		ufshcd_release(hba);
+		ufshpb_resume(hba);
 	}
 	hba->pm_op_in_progress = false;
 	return ret;
@@ -9025,8 +9025,6 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	if (ufshcd_is_clkscaling_supported(hba))
 		ufshcd_clk_scaling_suspend(hba, false);
 
-	ufshpb_resume(hba);
-
 	if (hba->dev_info.b_rpm_dev_flush_capable) {
 		hba->dev_info.b_rpm_dev_flush_capable = false;
 		cancel_delayed_work(&hba->rpm_dev_flush_recheck_work);
@@ -9034,6 +9032,8 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 
 	/* Enable Auto-Hibernate if configured */
 	ufshcd_auto_hibern8_enable(hba);
+
+	ufshpb_resume(hba);
 	goto out;
 
 set_old_link_state:
-- 
GitLab


From fddf81394141e10da01e8d8a1827daabd645e3ee Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Mon, 1 Nov 2021 16:03:01 +0800
Subject: [PATCH 0781/4878] ANDROID: debug_symbols: Add show_mem

Add show_mem symbol which will be used by the hard-lockup
debugging module to debug_symbols driver.

Bug: 199478662
Signed-off-by: Woody Lin <woodylin@google.com>
Change-Id: I479700e9f1428b4e1192881b4e3b67c9e43afbeb
---
 drivers/android/debug_symbols.c       | 1 +
 include/linux/android_debug_symbols.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/android/debug_symbols.c b/drivers/android/debug_symbols.c
index 6a4a6f8992f2a..f2a5a0614ccc5 100644
--- a/drivers/android/debug_symbols.c
+++ b/drivers/android/debug_symbols.c
@@ -68,6 +68,7 @@ static const struct ads_entry ads_entries[ADS_END] = {
 #ifdef CONFIG_SYSCTL
 	ADS_ENTRY(ADS_SYSCTL_LEGACY_VA_LAYOUT, &sysctl_legacy_va_layout),
 #endif
+	ADS_ENTRY(ADS_SHOW_MEM, show_mem),
 };
 
 /*
diff --git a/include/linux/android_debug_symbols.h b/include/linux/android_debug_symbols.h
index 6a54e9116e3dd..07484238c8e4a 100644
--- a/include/linux/android_debug_symbols.h
+++ b/include/linux/android_debug_symbols.h
@@ -37,6 +37,7 @@ enum android_debug_symbol {
 #ifdef CONFIG_SYSCTL
 	ADS_SYSCTL_LEGACY_VA_LAYOUT,
 #endif
+	ADS_SHOW_MEM,
 	ADS_END
 };
 
-- 
GitLab


From 79775d022591380b9419f9a1d95c1e03076f9c5c Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 29 Jun 2021 22:05:26 +0000
Subject: [PATCH 0782/4878] ANDROID: KVM: arm64: Introduce IOMMU driver
 infrastructure

Bootstrap infrastructure for IOMMU drivers by introducing kvm_iommu_ops
struct in EL2 that is populated based on a iommu_driver parameter to
__pkvm_init hypercall and selected in EL1 early init.

An 'init' operation is called in __pkvm_init_finalise, giving the driver
an opportunity to initialize itself in EL2 and create any EL2 mappings
that it will need. 'init' is specifically called before
'finalize_host_mappings' so that:
  (a) pages mapped by the driver change owner to hyp,
  (b) ownership changes in 'finalize_host_mappings' get reflected in
      IOMMU mappings (added in a future patch).

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Icd496d193c0bbf811406c3a8d4b94610e2a03197
---
 arch/arm64/include/asm/kvm_host.h  |  4 ++++
 arch/arm64/include/asm/kvm_hyp.h   |  9 ++++++++-
 arch/arm64/kvm/arm.c               | 15 ++++++++++++---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c |  5 ++++-
 arch/arm64/kvm/hyp/nvhe/setup.c    | 23 ++++++++++++++++++++++-
 5 files changed, 50 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 0fb9db5861c93..99739c59de7ec 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -273,6 +273,10 @@ extern s64 kvm_nvhe_sym(hyp_physvirt_offset);
 extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
 #define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map)
 
+enum kvm_iommu_driver {
+	KVM_IOMMU_DRIVER_NONE,
+};
+
 struct vcpu_reset_state {
 	unsigned long	pc;
 	unsigned long	r0;
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 5afd14ab15b9f..d9158d8d9f5ea 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -111,7 +111,8 @@ void __noreturn __hyp_do_panic(struct kvm_cpu_context *host_ctxt, u64 spsr,
 void __pkvm_init_switch_pgd(phys_addr_t phys, unsigned long size,
 			    phys_addr_t pgd, void *sp, void *cont_fn);
 int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
-		unsigned long *per_cpu_base, u32 hyp_va_bits);
+		unsigned long *per_cpu_base, u32 hyp_va_bits,
+		enum kvm_iommu_driver iommu_driver);
 void __noreturn __host_enter(struct kvm_cpu_context *host_ctxt);
 #endif
 
@@ -123,4 +124,10 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 
+struct kvm_iommu_ops {
+	int (*init)(void);
+};
+
+extern struct kvm_iommu_ops kvm_iommu_ops;
+
 #endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 04a130095df72..df3a049961521 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1723,6 +1723,11 @@ static bool init_psci_relay(void)
 	return true;
 }
 
+static int init_stage2_iommu(void)
+{
+	return KVM_IOMMU_DRIVER_NONE;
+}
+
 static int init_subsystems(void)
 {
 	int err = 0;
@@ -1782,7 +1787,7 @@ static void teardown_hyp_mode(void)
 	}
 }
 
-static int do_pkvm_init(u32 hyp_va_bits)
+static int do_pkvm_init(u32 hyp_va_bits, enum kvm_iommu_driver iommu_driver)
 {
 	void *per_cpu_base = kvm_ksym_ref(kvm_arm_hyp_percpu_base);
 	int ret;
@@ -1791,7 +1796,7 @@ static int do_pkvm_init(u32 hyp_va_bits)
 	cpu_hyp_init_context();
 	ret = kvm_call_hyp_nvhe(__pkvm_init, hyp_mem_base, hyp_mem_size,
 				num_possible_cpus(), kern_hyp_va(per_cpu_base),
-				hyp_va_bits);
+				hyp_va_bits, iommu_driver);
 	cpu_hyp_init_features();
 
 	/*
@@ -1821,7 +1826,11 @@ static int kvm_hyp_init_protection(u32 hyp_va_bits)
 	if (ret)
 		return ret;
 
-	ret = do_pkvm_init(hyp_va_bits);
+	ret = init_stage2_iommu();
+	if (ret < 0)
+		return ret;
+
+	ret = do_pkvm_init(hyp_va_bits, (enum kvm_iommu_driver)ret);
 	if (ret)
 		return ret;
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index b096bf009144f..321ae7c07b05e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -19,6 +19,8 @@
 
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
 
+struct kvm_iommu_ops kvm_iommu_ops;
+
 void __kvm_hyp_host_forward_smc(struct kvm_cpu_context *host_ctxt);
 
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
@@ -123,6 +125,7 @@ static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
 	DECLARE_REG(unsigned long, nr_cpus, host_ctxt, 3);
 	DECLARE_REG(unsigned long *, per_cpu_base, host_ctxt, 4);
 	DECLARE_REG(u32, hyp_va_bits, host_ctxt, 5);
+	DECLARE_REG(enum kvm_iommu_driver, iommu_driver, host_ctxt, 6);
 
 	/*
 	 * __pkvm_init() will return only if an error occurred, otherwise it
@@ -130,7 +133,7 @@ static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
 	 * with the host context directly.
 	 */
 	cpu_reg(host_ctxt, 1) = __pkvm_init(phys, size, nr_cpus, per_cpu_base,
-					    hyp_va_bits);
+					    hyp_va_bits, iommu_driver);
 }
 
 static void handle___pkvm_cpu_set_vector(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 862c7b514e20d..a2a8adb7b77c3 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -211,6 +211,16 @@ static int finalize_host_mappings(void)
 	return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits), &walker);
 }
 
+int select_iommu_ops(enum kvm_iommu_driver driver)
+{
+	switch (driver) {
+	case KVM_IOMMU_DRIVER_NONE:
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
 void __noreturn __pkvm_init_finalise(void)
 {
 	struct kvm_host_data *host_data = this_cpu_ptr(&kvm_host_data);
@@ -230,6 +240,12 @@ void __noreturn __pkvm_init_finalise(void)
 	if (ret)
 		goto out;
 
+	if (kvm_iommu_ops.init) {
+		ret = kvm_iommu_ops.init();
+		if (ret)
+			goto out;
+	}
+
 	ret = finalize_host_mappings();
 	if (ret)
 		goto out;
@@ -254,7 +270,8 @@ out:
 }
 
 int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
-		unsigned long *per_cpu_base, u32 hyp_va_bits)
+		unsigned long *per_cpu_base, u32 hyp_va_bits,
+		enum kvm_iommu_driver iommu_driver)
 {
 	struct kvm_nvhe_init_params *params;
 	void *virt = hyp_phys_to_virt(phys);
@@ -277,6 +294,10 @@ int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
 	if (ret)
 		return ret;
 
+	ret = select_iommu_ops(iommu_driver);
+	if (ret)
+		return ret;
+
 	update_nvhe_init_params();
 
 	/* Jump in the idmap page to switch to the new page-tables */
-- 
GitLab


From d2efcdcb2b1874ad0d701cdb6d9ae4517fc0e117 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 29 Jun 2021 19:14:45 +0000
Subject: [PATCH 0783/4878] ANDROID: KVM: arm64: Add 'host_smc_handler' to
 kvm_iommu_ops

IOMMU drivers need to intercept power management SMCs between the host
and EL3. Add a hook to hyp's 'handle_host_smc'.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ief42370ac371f6b3b87a0d46c00acfffece47052
---
 arch/arm64/include/asm/kvm_hyp.h   | 1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index d9158d8d9f5ea..70bf7ae3a642f 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -126,6 +126,7 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 
 struct kvm_iommu_ops {
 	int (*init)(void);
+	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
 };
 
 extern struct kvm_iommu_ops kvm_iommu_ops;
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 321ae7c07b05e..75ce2547cd6e1 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -246,6 +246,8 @@ static void handle_host_smc(struct kvm_cpu_context *host_ctxt)
 	bool handled;
 
 	handled = kvm_host_psci_handler(host_ctxt);
+	if (!handled && kvm_iommu_ops.host_smc_handler)
+		handled = kvm_iommu_ops.host_smc_handler(host_ctxt);
 	if (!handled)
 		default_host_smc_handler(host_ctxt);
 
-- 
GitLab


From 3cd8b5b00be97ba6567d319a8be8bf7b45929936 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 24 Jun 2021 11:02:37 +0000
Subject: [PATCH 0784/4878] ANDROID: KVM: arm64: Add 'host_stage2_set_owner' to
 kvm_iommu_ops

Add a new hook to kvm_iommu_ops that is invoked whenever a range of
pages changes their owner in the host stage2. This is currently limited
to finalize_host_mappings, which changes the owner of EL2-mapped pages
from host to hyp.

The driver is expected to apply corresponding changes in the IOMMU it
controls, so that only the new owner can access the page range.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ic5ca01a56344cd0253bf7b71560f057ba0e54d6b
---
 arch/arm64/include/asm/kvm_hyp.h      |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 11 +++++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 70bf7ae3a642f..fd60175da295d 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -127,6 +127,7 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 struct kvm_iommu_ops {
 	int (*init)(void);
 	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
+	void (*host_stage2_set_owner)(phys_addr_t addr, size_t size, u8 owner_id);
 };
 
 extern struct kvm_iommu_ops kvm_iommu_ops;
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index c1a90dd022b8c..230f4f7456ad5 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -301,10 +301,17 @@ int host_stage2_idmap_locked(phys_addr_t addr, u64 size,
 
 int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id)
 {
+	int ret;
+
 	hyp_assert_lock_held(&host_kvm.lock);
 
-	return host_stage2_try(kvm_pgtable_stage2_set_owner, &host_kvm.pgt,
-			       addr, size, &host_s2_pool, owner_id);
+	ret = host_stage2_try(kvm_pgtable_stage2_set_owner, &host_kvm.pgt,
+			      addr, size, &host_s2_pool, owner_id);
+
+	if (!ret && kvm_iommu_ops.host_stage2_set_owner)
+		kvm_iommu_ops.host_stage2_set_owner(addr, size, owner_id);
+
+	return ret;
 }
 
 static bool host_stage2_force_pte_cb(u64 addr, u64 end, enum kvm_pgtable_prot prot)
-- 
GitLab


From 25f81ec77b8915f45ba2d2c393cba37788b6eef8 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 28 Oct 2021 14:26:18 +0100
Subject: [PATCH 0785/4878] ANDROID: KVM: arm64: Add 'host_mmio_dabt_handler'
 to kvm_iommu_ops

Add a new kvm_iommu_ops hook which allows the IOMMU driver to handle
data aborts in unmapped device memory regions. If the abort is handled
by the driver, the global abort handler will not attempt to map in the
page.

For example, this enables the IOMMU driver to virtualize access to
the underlying IOMMU hardware, or to allow access to a subset of the
functionality, eg. performance counters.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ie2e38652f0568c27d30190fcc3879592872863ae
---
 arch/arm64/include/asm/kvm_hyp.h      |  3 +++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 38 +++++++++++++++++++++++++--
 2 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index fd60175da295d..d5148d0060607 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -127,6 +127,9 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 struct kvm_iommu_ops {
 	int (*init)(void);
 	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
+	bool (*host_mmio_dabt_handler)(struct kvm_cpu_context *host_ctxt,
+				       phys_addr_t fault_pa, unsigned int len,
+				       bool is_write, int rd);
 	void (*host_stage2_set_owner)(phys_addr_t addr, size_t size, u8 owner_id);
 };
 
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 230f4f7456ad5..badd206be6dc0 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -11,6 +11,7 @@
 #include <asm/kvm_pgtable.h>
 #include <asm/stage2_pgtable.h>
 
+#include <hyp/adjust_pc.h>
 #include <hyp/fault.h>
 
 #include <nvhe/gfp.h>
@@ -445,16 +446,49 @@ unlock:
 	return ret;
 }
 
+static int host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
+				  phys_addr_t addr)
+{
+	bool wnr = esr & ESR_ELx_WNR;
+	unsigned int len = BIT((esr & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT);
+	int rd = (esr & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
+	bool handled = false;
+
+	if (kvm_iommu_ops.host_mmio_dabt_handler) {
+		handled = kvm_iommu_ops.host_mmio_dabt_handler(host_ctxt, addr,
+							       len, wnr, rd);
+	}
+
+	if (!handled)
+		return -EPERM;
+
+	kvm_skip_host_instr();
+	return 0;
+}
+
+static bool is_dabt(u64 esr)
+{
+	return ESR_ELx_EC(esr) == ESR_ELx_EC_DABT_LOW;
+}
+
 void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 {
 	struct kvm_vcpu_fault_info fault;
 	u64 esr, addr;
-	int ret = 0;
+	int ret = -EPERM;
 
 	esr = read_sysreg_el2(SYS_ESR);
 	BUG_ON(!__get_fault_info(esr, &fault));
 
 	addr = (fault.hpfar_el2 & HPFAR_MASK) << 8;
-	ret = host_stage2_idmap(addr);
+
+	/* See if any subsystem can handle this abort. */
+	if (is_dabt(esr) && !addr_is_memory(addr))
+		ret = host_mmio_dabt_handler(host_ctxt, esr, addr);
+
+	/* If not handled, attempt to map the page. */
+	if (ret == -EPERM)
+		ret = host_stage2_idmap(addr);
+
 	BUG_ON(ret && ret != -EAGAIN);
 }
-- 
GitLab


From cc1ad46fb2618ea2346e52ace4b010b364d10e65 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 28 Oct 2021 14:23:05 +0100
Subject: [PATCH 0786/4878] ANDROID: KVM: arm64: Add
 'host_stage2_adjust_mmio_range' to kvm_iommu_ops

Add a new kvm_iommu_ops hook to the lower-EL instruction/data abort
handler, which allows the IOMMU driver to restrict the region of device
memory that is about to be mapped in the host stage-2.

This can be used by the IOMMU driver to restrict access to the MMIO
registers of the IOMMU itself.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I58f7b7a78795a3bfc4d77f7128e4fdc1110fde58
---
 arch/arm64/include/asm/kvm_hyp.h      |  2 ++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index d5148d0060607..083c4e5b0e27c 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -131,6 +131,8 @@ struct kvm_iommu_ops {
 				       phys_addr_t fault_pa, unsigned int len,
 				       bool is_write, int rd);
 	void (*host_stage2_set_owner)(phys_addr_t addr, size_t size, u8 owner_id);
+	int (*host_stage2_adjust_mmio_range)(phys_addr_t addr, phys_addr_t *start,
+					     phys_addr_t *end);
 };
 
 extern struct kvm_iommu_ops kvm_iommu_ops;
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index badd206be6dc0..1f5c53e604e8f 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -346,6 +346,17 @@ static int host_stage2_idmap(u64 addr)
 
 	prot = is_memory ? PKVM_HOST_MEM_PROT : PKVM_HOST_MMIO_PROT;
 
+	/**
+	 * Let device drivers adjust the permitted range first.
+	 * host_stage2_adjust_range() should be last to also properly align it.
+	 */
+	if (!is_memory && kvm_iommu_ops.host_stage2_adjust_mmio_range) {
+		ret = kvm_iommu_ops.host_stage2_adjust_mmio_range(addr, &range.start,
+								  &range.end);
+		if (ret)
+			return ret;
+	}
+
 	hyp_spin_lock(&host_kvm.lock);
 	ret = host_stage2_adjust_range(addr, &range);
 	if (ret)
-- 
GitLab


From ff91ee259ce3132e6522b9aff05ee4e1f0554c5d Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 2 Nov 2021 16:46:28 +0000
Subject: [PATCH 0787/4878] ANDROID: dt-bindings: iommu: Add Google S2MPU

Add DeviceTree bindings for Google S2MPU.

Test: n/a
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I002b5df1cac73766179d73ed56fe4945e8e7c2e6
---
 .../bindings/iommu/google,s2mpu.yaml          | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iommu/google,s2mpu.yaml

diff --git a/Documentation/devicetree/bindings/iommu/google,s2mpu.yaml b/Documentation/devicetree/bindings/iommu/google,s2mpu.yaml
new file mode 100644
index 0000000000000..18bc10032ecfd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/google,s2mpu.yaml
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iommu/google,s2mpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: S2MPU device tree bindings
+
+maintainers:
+  - David Brazdil <dbrazdil@google.com>
+
+properties:
+  reg:
+    maxItems: 1
+
+  compatible:
+    contains:
+      const: google,s2mpu
+
+  power-domain-id:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      ID of the power domain that the S2MPU belongs to. If not specified,
+      the device is assumed to be always powered.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: true
-- 
GitLab


From b2de5483b7c5977dccfa85bde756e47f53a0ab42 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 7 Jul 2021 14:54:24 +0000
Subject: [PATCH 0788/4878] ANDROID: KVM: arm64: Create empty S2MPU driver

Create a skeleton driver for the S2MPU - an EL1 portion called during
KVM init which will parse the DT and configure the kernel, and an EL2
portion which will program the S2MPUs later at runtime. The code is
behind CONFIG_KVM_S2MPU.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ic6a3460cad69fba673754cc1926a5bac88f1fa17
---
 arch/arm64/include/asm/kvm_host.h     |  7 +++++++
 arch/arm64/include/asm/kvm_hyp.h      |  1 +
 arch/arm64/kvm/Kconfig                |  9 +++++++++
 arch/arm64/kvm/Makefile               |  2 +-
 arch/arm64/kvm/arm.c                  |  8 +++++++-
 arch/arm64/kvm/hyp/nvhe/Makefile      |  2 ++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 11 +++++++++++
 arch/arm64/kvm/hyp/nvhe/setup.c       |  6 ++++++
 arch/arm64/kvm/iommu/Makefile         |  6 ++++++
 arch/arm64/kvm/iommu/s2mpu.c          | 13 +++++++++++++
 10 files changed, 63 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
 create mode 100644 arch/arm64/kvm/iommu/Makefile
 create mode 100644 arch/arm64/kvm/iommu/s2mpu.c

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 99739c59de7ec..73cb8102909f0 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -275,8 +275,15 @@ extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
 
 enum kvm_iommu_driver {
 	KVM_IOMMU_DRIVER_NONE,
+	KVM_IOMMU_DRIVER_S2MPU,
 };
 
+#ifdef CONFIG_KVM_S2MPU
+int kvm_s2mpu_init(void);
+#else
+static inline int kvm_s2mpu_init(void) { return -ENODEV; }
+#endif
+
 struct vcpu_reset_state {
 	unsigned long	pc;
 	unsigned long	r0;
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 083c4e5b0e27c..67579d7fd9df7 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -136,5 +136,6 @@ struct kvm_iommu_ops {
 };
 
 extern struct kvm_iommu_ops kvm_iommu_ops;
+extern const struct kvm_iommu_ops kvm_s2mpu_ops;
 
 #endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index ecec40c186a98..982337ba53326 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -56,4 +56,13 @@ config NVHE_EL2_DEBUG
 
 	  If unsure, say N.
 
+config KVM_S2MPU
+	bool "Stage-2 Memory Protection Unit support"
+	depends on KVM
+	help
+	  Support for the Stage-2 Memory Protection Unit (S2MPU) and Stream
+	  Security Mapping Table (SSMT) devices in KVM. This allows the
+	  hypervisor to restrict DMA access to its memory and the memory of
+	  protected guests.
+
 endif # VIRTUALIZATION
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 589921392cb12..06d3a37a92720 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -8,7 +8,7 @@ ccflags-y += -I $(srctree)/$(src)
 KVM=../../../virt/kvm
 
 obj-$(CONFIG_KVM) += kvm.o
-obj-$(CONFIG_KVM) += hyp/
+obj-$(CONFIG_KVM) += hyp/ iommu/
 
 kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \
 	 $(KVM)/vfio.o $(KVM)/irqchip.o \
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index df3a049961521..9ebf35a70a6cf 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1725,7 +1725,13 @@ static bool init_psci_relay(void)
 
 static int init_stage2_iommu(void)
 {
-	return KVM_IOMMU_DRIVER_NONE;
+	int ret;
+
+	ret = kvm_s2mpu_init();
+	if (!ret)
+		return KVM_IOMMU_DRIVER_S2MPU;
+
+	return (ret == -ENODEV) ? KVM_IOMMU_DRIVER_NONE : ret;
 }
 
 static int init_subsystems(void)
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 2f8c165c60e49..2428f1719740c 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -19,6 +19,8 @@ obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
 	 ../fpsimd.o ../hyp-entry.o ../exception.o ../pgtable.o
 obj-y += $(lib-objs)
 
+obj-$(CONFIG_KVM_S2MPU) += iommu/s2mpu.o
+
 ##
 ## Build rules for compiling nVHE hyp code
 ## Output of this folder is `kvm_nvhe.o`, a partially linked object
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
new file mode 100644
index 0000000000000..1731300e0bec9
--- /dev/null
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ */
+
+#include <linux/kvm_host.h>
+
+#include <asm/kvm_hyp.h>
+
+const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){};
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index a2a8adb7b77c3..b8d250833b1c5 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -216,6 +216,12 @@ int select_iommu_ops(enum kvm_iommu_driver driver)
 	switch (driver) {
 	case KVM_IOMMU_DRIVER_NONE:
 		return 0;
+	case KVM_IOMMU_DRIVER_S2MPU:
+		if (IS_ENABLED(CONFIG_KVM_S2MPU)) {
+			kvm_iommu_ops = kvm_s2mpu_ops;
+			return 0;
+		}
+		break;
 	}
 
 	return -EINVAL;
diff --git a/arch/arm64/kvm/iommu/Makefile b/arch/arm64/kvm/iommu/Makefile
new file mode 100644
index 0000000000000..2a51f8cb28484
--- /dev/null
+++ b/arch/arm64/kvm/iommu/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for Kernel-based Virtual Machine module
+#
+
+obj-$(CONFIG_KVM_S2MPU) += s2mpu.o
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
new file mode 100644
index 0000000000000..800d264e4be16
--- /dev/null
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ */
+
+#include <linux/kvm_host.h>
+
+int kvm_s2mpu_init(void)
+{
+	kvm_info("S2MPU driver initialized\n");
+	return 0;
+}
-- 
GitLab


From 4e91a0015386e3449c9da101175fb4c613df1179 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 17 Jun 2021 14:23:25 +0000
Subject: [PATCH 0789/4878] ANDROID: KVM: arm64: Parse S2MPU MMIO region

Start EL1 portion of the S2MPU driver with an init function which
probes the Device tree for nodes compatible with 'google,s2mpu'.
Parse and check the base, size and power domain ID.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ic8b421e20b40b4a9fc5fb268dece00a11e35e3eb
---
 arch/arm64/include/asm/kvm_s2mpu.h | 16 +++++++
 arch/arm64/kvm/iommu/s2mpu.c       | 77 +++++++++++++++++++++++++++++-
 2 files changed, 92 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/include/asm/kvm_s2mpu.h

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
new file mode 100644
index 0000000000000..ba0db79881179
--- /dev/null
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ */
+
+#ifndef __ARM64_KVM_S2MPU_H__
+#define __ARM64_KVM_S2MPU_H__
+
+enum s2mpu_power_state {
+	S2MPU_POWER_ALWAYS_ON,
+	S2MPU_POWER_ON,
+	S2MPU_POWER_OFF,
+};
+
+#endif /* __ARM64_KVM_S2MPU_H__ */
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 800d264e4be16..9a9e2db44037f 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -5,9 +5,84 @@
  */
 
 #include <linux/kvm_host.h>
+#include <linux/of_platform.h>
+
+#include <asm/kvm_mmu.h>
+#include <asm/kvm_s2mpu.h>
+
+#define S2MPU_MMIO_SIZE		SZ_64K
+
+static int s2mpu_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	void __iomem *kaddr;
+	size_t res_size;
+	enum s2mpu_power_state power_state = S2MPU_POWER_ALWAYS_ON;
+	u32 power_domain_id = 0;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "failed to parse 'reg'");
+		return -EINVAL;
+	}
+
+	/* devm_ioremap_resource internally calls devm_request_mem_region. */
+	kaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(kaddr)) {
+		dev_err(&pdev->dev, "could not ioremap resource: %ld",
+			PTR_ERR(kaddr));
+		return PTR_ERR(kaddr);
+	}
+
+	if (!PAGE_ALIGNED(res->start)) {
+		dev_err(&pdev->dev, "base address must be page-aligned (0x%llx)",
+			res->start);
+		return -EINVAL;
+	}
+
+	res_size = resource_size(res);
+	if (res_size != S2MPU_MMIO_SIZE) {
+		dev_err(&pdev->dev,
+			"unexpected device region size (expected=%u, actual=%lu)",
+			S2MPU_MMIO_SIZE, res_size);
+		return -EINVAL;
+	}
+
+	ret = of_property_read_u32(pdev->dev.of_node, "power-domain-id",
+				   &power_domain_id);
+	if (!ret) {
+		power_state = S2MPU_POWER_ON;
+	} else if (ret != -EINVAL) {
+		dev_err(&pdev->dev, "failed to parse power-domain-id: %d", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id of_table[] = {
+	{ .compatible = "google,s2mpu" },
+	{},
+};
+
+static struct platform_driver of_driver = {
+	.driver = {
+		.name = "kvm,s2mpu",
+		.of_match_table = of_table,
+	},
+};
 
 int kvm_s2mpu_init(void)
 {
+	int ret;
+
+	ret = platform_driver_probe(&of_driver, s2mpu_probe);
+	if (ret)
+		goto out;
+
 	kvm_info("S2MPU driver initialized\n");
-	return 0;
+
+out:
+	return ret;
 }
-- 
GitLab


From 4a7da93bdbfcd166f5bb67a69d6f017da158c7e2 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 9 Jul 2021 11:47:09 +0100
Subject: [PATCH 0790/4878] ANDROID: KVM: arm64: Read and check S2MPU_VERSION

Read S2MPU_VERSION during driver init and check it against list of
supported versions. The register fields are as follows:
  - MAJOR_ARCH_VER,
  - MINOR_ARCH_VER,
  - REV_ARCH_VER,
  - RTL_VER.
Their exact use is not documented. For now, we mask out RTL_VER and
expect a match on MAJOR_, MINOR_ and REV_ARCH_VER. This may be tweaked
in the future.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I2fbd20ab78a992c8bdb3574a6d480012260c9ded
---
 arch/arm64/include/asm/kvm_s2mpu.h | 17 +++++++++++++++++
 arch/arm64/kvm/iommu/s2mpu.c       | 12 +++++++++++-
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index ba0db79881179..2ae35aba43e68 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -7,6 +7,23 @@
 #ifndef __ARM64_KVM_S2MPU_H__
 #define __ARM64_KVM_S2MPU_H__
 
+#define REG_NS_VERSION				0x60
+
+#define VERSION_MAJOR_ARCH_VER_MASK		GENMASK(31, 28)
+#define VERSION_MINOR_ARCH_VER_MASK		GENMASK(27, 24)
+#define VERSION_REV_ARCH_VER_MASK		GENMASK(23, 16)
+#define VERSION_RTL_VER_MASK			GENMASK(7, 0)
+
+/* Ignore RTL version in driver version check. */
+#define VERSION_CHECK_MASK			(VERSION_MAJOR_ARCH_VER_MASK | \
+						 VERSION_MINOR_ARCH_VER_MASK | \
+						 VERSION_REV_ARCH_VER_MASK)
+
+enum s2mpu_version {
+	S2MPU_VERSION_8 = 0x11000000,
+	S2MPU_VERSION_9 = 0x20000000,
+};
+
 enum s2mpu_power_state {
 	S2MPU_POWER_ALWAYS_ON,
 	S2MPU_POWER_ON,
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 9a9e2db44037f..5d7a87dee0d35 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -18,7 +18,7 @@ static int s2mpu_probe(struct platform_device *pdev)
 	void __iomem *kaddr;
 	size_t res_size;
 	enum s2mpu_power_state power_state = S2MPU_POWER_ALWAYS_ON;
-	u32 power_domain_id = 0;
+	u32 version, power_domain_id = 0;
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -58,6 +58,16 @@ static int s2mpu_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	version = readl_relaxed(kaddr + REG_NS_VERSION);
+	switch (version & VERSION_CHECK_MASK) {
+	case S2MPU_VERSION_8:
+	case S2MPU_VERSION_9:
+		break;
+	default:
+		dev_err(&pdev->dev, "unexpected version 0x%08x", version);
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
-- 
GitLab


From 923353be1e550f2f7da3529e0ddee2f4bc563f6d Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 10 Aug 2021 12:23:39 +0100
Subject: [PATCH 0791/4878] ANDROID: KVM: arm64: Allocate context IDs for valid
 VIDs

S2MPU_CONTEXT_CFG_VALID_VID register must be configured on v9,
allocating a context ID in range 0 to S2MPU_NUM_CONTEXT to each valid
VID. For now assume that all 8 VIDs are valid. This will change once
the hypervisor takes control over SSMT configuration as well.

If there are more VIDs than available context IDs, the driver prints
a warning that DMA may be blocked and continues.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I7a78999b73c4ddf4ff78900a7c91eabe57aad572
---
 arch/arm64/include/asm/kvm_s2mpu.h | 14 +++++++
 arch/arm64/kvm/iommu/s2mpu.c       | 60 ++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 2ae35aba43e68..1c4f4a85cd53e 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -7,7 +7,15 @@
 #ifndef __ARM64_KVM_S2MPU_H__
 #define __ARM64_KVM_S2MPU_H__
 
+#include <linux/bitfield.h>
+
+#define NR_VIDS					8
+#define NR_CTX_IDS				8
+
+#define ALL_VIDS_BITMAP				GENMASK(NR_VIDS - 1, 0)
+
 #define REG_NS_VERSION				0x60
+#define REG_NS_NUM_CONTEXT			0x100
 
 #define VERSION_MAJOR_ARCH_VER_MASK		GENMASK(31, 28)
 #define VERSION_MINOR_ARCH_VER_MASK		GENMASK(27, 24)
@@ -19,6 +27,12 @@
 						 VERSION_MINOR_ARCH_VER_MASK | \
 						 VERSION_REV_ARCH_VER_MASK)
 
+#define NUM_CONTEXT_MASK			GENMASK(3, 0)
+
+#define CONTEXT_CFG_VALID_VID_CTX_VALID(ctx)	BIT((4 * (ctx)) + 3)
+#define CONTEXT_CFG_VALID_VID_CTX_VID(ctx, vid)	\
+		FIELD_PREP(GENMASK((4 * (ctx) + 2), 4 * (ctx)), (vid))
+
 enum s2mpu_version {
 	S2MPU_VERSION_8 = 0x11000000,
 	S2MPU_VERSION_9 = 0x20000000,
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 5d7a87dee0d35..9bbd473e276c0 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -12,6 +12,62 @@
 
 #define S2MPU_MMIO_SIZE		SZ_64K
 
+#define CTX_CFG_ENTRY(ctxid, nr_ctx, vid) \
+	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
+	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
+
+static u32 gen_ctx_cfg_valid_vid(struct platform_device *pdev,
+				 unsigned int num_ctx, u32 vid_bmap)
+{
+	u8 ctx_vid[NR_CTX_IDS] = { 0 };
+	unsigned int vid, ctx = 0;
+
+	/* Check NUM_CONTEXT value is within bounds. This should not happen. */
+	if (WARN_ON(num_ctx > NR_CTX_IDS))
+		num_ctx = NR_CTX_IDS;
+
+	while (vid_bmap) {
+		/* Break if we cannot allocate more. */
+		if (ctx >= num_ctx) {
+			dev_warn(&pdev->dev,
+				 "could not allocate all context IDs, DMA may be blocked (VID bitmap: 0x%x)",
+				 vid_bmap);
+			break;
+		}
+
+		vid = __ffs(vid_bmap);
+		vid_bmap &= ~BIT(vid);
+		ctx_vid[ctx++] = vid;
+	}
+
+	/* The following loop was unrolled so bitmasks are constant. */
+	BUILD_BUG_ON(NR_CTX_IDS != 8);
+	return CTX_CFG_ENTRY(0, ctx, ctx_vid[0])
+	     | CTX_CFG_ENTRY(1, ctx, ctx_vid[1])
+	     | CTX_CFG_ENTRY(2, ctx, ctx_vid[2])
+	     | CTX_CFG_ENTRY(3, ctx, ctx_vid[3])
+	     | CTX_CFG_ENTRY(4, ctx, ctx_vid[4])
+	     | CTX_CFG_ENTRY(5, ctx, ctx_vid[5])
+	     | CTX_CFG_ENTRY(6, ctx, ctx_vid[6])
+	     | CTX_CFG_ENTRY(7, ctx, ctx_vid[7]);
+}
+
+static int s2mpu_probe_v9(struct platform_device *pdev, void __iomem *kaddr)
+{
+	unsigned int num_ctx;
+	u32 ssmt_valid_vid_bmap, ctx_cfg_valid_vid;
+
+	ssmt_valid_vid_bmap = ALL_VIDS_BITMAP;
+	num_ctx = readl_relaxed(kaddr + REG_NS_NUM_CONTEXT) & NUM_CONTEXT_MASK;
+	ctx_cfg_valid_vid = gen_ctx_cfg_valid_vid(pdev, num_ctx, ssmt_valid_vid_bmap);
+	if (!ctx_cfg_valid_vid) {
+		dev_err(&pdev->dev, "failed to allocate context IDs");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int s2mpu_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -61,7 +117,11 @@ static int s2mpu_probe(struct platform_device *pdev)
 	version = readl_relaxed(kaddr + REG_NS_VERSION);
 	switch (version & VERSION_CHECK_MASK) {
 	case S2MPU_VERSION_8:
+		break;
 	case S2MPU_VERSION_9:
+		ret = s2mpu_probe_v9(pdev, kaddr);
+		if (ret)
+			return ret;
 		break;
 	default:
 		dev_err(&pdev->dev, "unexpected version 0x%08x", version);
-- 
GitLab


From 2517c4e5f0cd5bb9e3c934273c562f1c650d6daa Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 11 Aug 2021 16:04:46 +0100
Subject: [PATCH 0792/4878] ANDROID: KVM: arm64: Implement IRQ handler for
 S2MPU faults

The S2MPU can be configured to trigger an interrupt on faults: access
permission (both regular and during page table walks) and if no matching
context ID is found for request's VID (v9 only).

When interrupt information is provided in the S2MPU's DT node, parse the
information and enable an IRQ handler. Later patch will enable the
functionality in the S2MPU.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I5e26a64fc2f09f96f36a93ea9bc5bf3035a71077
---
 arch/arm64/include/asm/kvm_s2mpu.h |  18 +++++
 arch/arm64/kvm/iommu/s2mpu.c       | 102 +++++++++++++++++++++++++++++
 2 files changed, 120 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 1c4f4a85cd53e..d513c56b2c9ce 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -14,8 +14,16 @@
 
 #define ALL_VIDS_BITMAP				GENMASK(NR_VIDS - 1, 0)
 
+#define REG_NS_INTERRUPT_CLEAR			0x2c
 #define REG_NS_VERSION				0x60
 #define REG_NS_NUM_CONTEXT			0x100
+#define REG_NS_FAULT_STATUS			0x2000
+#define REG_NS_FAULT_PA_LOW(vid)		(0x2004 + ((vid) * 0x20))
+#define REG_NS_FAULT_PA_HIGH(vid)		(0x2008 + ((vid) * 0x20))
+#define REG_NS_FAULT_INFO(vid)			(0x2010 + ((vid) * 0x20))
+
+/* For use with hi_lo_readq_relaxed(). */
+#define REG_NS_FAULT_PA_HIGH_LOW(vid)		REG_NS_FAULT_PA_LOW(vid)
 
 #define VERSION_MAJOR_ARCH_VER_MASK		GENMASK(31, 28)
 #define VERSION_MINOR_ARCH_VER_MASK		GENMASK(27, 24)
@@ -33,6 +41,16 @@
 #define CONTEXT_CFG_VALID_VID_CTX_VID(ctx, vid)	\
 		FIELD_PREP(GENMASK((4 * (ctx) + 2), 4 * (ctx)), (vid))
 
+#define NR_FAULT_INFO_REGS			8
+#define FAULT_INFO_VID_MASK			GENMASK(26, 24)
+#define FAULT_INFO_TYPE_MASK			GENMASK(23, 21)
+#define FAULT_INFO_TYPE_CONTEXT			0x4 /* v9 only */
+#define FAULT_INFO_TYPE_AP			0x2
+#define FAULT_INFO_TYPE_MPTW			0x1
+#define FAULT_INFO_RW_BIT			BIT(20)
+#define FAULT_INFO_LEN_MASK			GENMASK(19, 16)
+#define FAULT_INFO_ID_MASK			GENMASK(15, 0)
+
 enum s2mpu_version {
 	S2MPU_VERSION_8 = 0x11000000,
 	S2MPU_VERSION_9 = 0x20000000,
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 9bbd473e276c0..5ac5544a30c95 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -4,6 +4,7 @@
  * Author: David Brazdil <dbrazdil@google.com>
  */
 
+#include <linux/io-64-nonatomic-hi-lo.h>
 #include <linux/kvm_host.h>
 #include <linux/of_platform.h>
 
@@ -16,6 +17,62 @@
 	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
 	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
 
+struct s2mpu_irq_info {
+	struct device *dev;
+	void __iomem *va;
+};
+
+static irqreturn_t s2mpu_irq_handler(int irq, void *data)
+{
+	struct s2mpu_irq_info *info = data;
+	unsigned int vid;
+	u32 vid_bmap, fault_info;
+	phys_addr_t fault_pa;
+	const char *fault_type;
+	irqreturn_t ret = IRQ_NONE;
+
+	while ((vid_bmap = readl_relaxed(info->va + REG_NS_FAULT_STATUS))) {
+		WARN_ON_ONCE(vid_bmap & (~ALL_VIDS_BITMAP));
+		vid = __ffs(vid_bmap);
+
+		fault_pa = hi_lo_readq_relaxed(info->va + REG_NS_FAULT_PA_HIGH_LOW(vid));
+		fault_info = readl_relaxed(info->va + REG_NS_FAULT_INFO(vid));
+		WARN_ON(FIELD_GET(FAULT_INFO_VID_MASK, fault_info) != vid);
+
+		switch (FIELD_GET(FAULT_INFO_TYPE_MASK, fault_info)) {
+		case FAULT_INFO_TYPE_MPTW:
+			fault_type = "MPTW fault";
+			break;
+		case FAULT_INFO_TYPE_AP:
+			fault_type = "access permission fault";
+			break;
+		case FAULT_INFO_TYPE_CONTEXT:
+			fault_type = "context fault";
+			break;
+		default:
+			fault_type = "unknown fault";
+			break;
+		}
+
+		dev_err(info->dev, "\n"
+			"============== S2MPU FAULT DETECTED ==============\n"
+			"  PA=0x%pap, FAULT_INFO=0x%08x\n"
+			"  DIRECTION: %s, TYPE: %s\n"
+			"  VID=%u, REQ_LENGTH=%lu, REQ_AXI_ID=%lu\n"
+			"==================================================\n",
+			&fault_pa, fault_info,
+			(fault_info & FAULT_INFO_RW_BIT) ? "write" : "read",
+			fault_type, vid,
+			FIELD_GET(FAULT_INFO_LEN_MASK, fault_info),
+			FIELD_GET(FAULT_INFO_ID_MASK, fault_info));
+
+		writel_relaxed(BIT(vid), info->va + REG_NS_INTERRUPT_CLEAR);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
 static u32 gen_ctx_cfg_valid_vid(struct platform_device *pdev,
 				 unsigned int num_ctx, u32 vid_bmap)
 {
@@ -68,6 +125,44 @@ static int s2mpu_probe_v9(struct platform_device *pdev, void __iomem *kaddr)
 	return 0;
 }
 
+/**
+ * Parse interrupt information from DT and if found, register IRQ handler.
+ * This is considered optional and will not fail even if the initialization is
+ * unsuccessful. In that case the IRQ will remain masked.
+ */
+static void s2mpu_probe_irq(struct platform_device *pdev, void __iomem *kaddr)
+{
+	struct s2mpu_irq_info *irq_info;
+	int ret, irq;
+
+	irq = platform_get_irq_optional(pdev, 0);
+
+	if (irq == -ENXIO)
+		return; /* No IRQ specified. */
+
+	if (irq < 0) {
+		/* IRQ specified but failed to parse. */
+		dev_err(&pdev->dev, "failed to parse IRQ, IRQ not enabled");
+		return;
+	}
+
+	irq_info = devm_kmalloc(&pdev->dev, sizeof(*irq_info), GFP_KERNEL);
+	if (!irq_info)
+		return;
+
+	*irq_info = (struct s2mpu_irq_info){
+		.dev = &pdev->dev,
+		.va = kaddr,
+	};
+
+	ret = devm_request_irq(&pdev->dev, irq, s2mpu_irq_handler, 0,
+			       dev_name(&pdev->dev), irq_info);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register IRQ, IRQ not enabled");
+		return;
+	}
+}
+
 static int s2mpu_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -114,6 +209,13 @@ static int s2mpu_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	/*
+	 * Try to parse IRQ information. This is optional as it only affects
+	 * runtime fault reporting, and therefore errors do not fail the whole
+	 * driver initialization.
+	 */
+	s2mpu_probe_irq(pdev, kaddr);
+
 	version = readl_relaxed(kaddr + REG_NS_VERSION);
 	switch (version & VERSION_CHECK_MASK) {
 	case S2MPU_VERSION_8:
-- 
GitLab


From bc80f81582975ba3d19162d3c4ee1e725b9e36bd Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 17 Jun 2021 20:58:16 +0000
Subject: [PATCH 0793/4878] ANDROID: KVM: arm64: Copy S2MPU configuration to
 hyp

Create variables in hyp that will hold the DT information about S2MPUs
to use by hyp at runtime. Copy the information from EL1 to EL2.

The EL1 code computes the size of the data and allocates a sufficient
number of pages, which hyp will later take ownership of.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I45ff22ea2049dd285bfcedbad3390baba9fc59a0
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 17 ++++-
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c |  3 +
 arch/arm64/kvm/iommu/s2mpu.c          | 89 +++++++++++++++++++++++----
 3 files changed, 96 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index d513c56b2c9ce..d1ed76c5f066c 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -57,9 +57,24 @@ enum s2mpu_version {
 };
 
 enum s2mpu_power_state {
-	S2MPU_POWER_ALWAYS_ON,
+	S2MPU_POWER_ALWAYS_ON = 0,
 	S2MPU_POWER_ON,
 	S2MPU_POWER_OFF,
 };
 
+struct s2mpu {
+	phys_addr_t pa;
+	void __iomem *va;
+	u32 version;
+	enum s2mpu_power_state power_state;
+	u32 power_domain_id;
+	u32 context_cfg_valid_vid;
+};
+
+extern size_t kvm_nvhe_sym(kvm_hyp_nr_s2mpus);
+#define kvm_hyp_nr_s2mpus kvm_nvhe_sym(kvm_hyp_nr_s2mpus)
+
+extern struct s2mpu *kvm_nvhe_sym(kvm_hyp_s2mpus);
+#define kvm_hyp_s2mpus kvm_nvhe_sym(kvm_hyp_s2mpus)
+
 #endif /* __ARM64_KVM_S2MPU_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 1731300e0bec9..43fc1e693aef3 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -8,4 +8,7 @@
 
 #include <asm/kvm_hyp.h>
 
+size_t __ro_after_init				kvm_hyp_nr_s2mpus;
+struct s2mpu __ro_after_init			*kvm_hyp_s2mpus;
+
 const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){};
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 5ac5544a30c95..6d990c47146c9 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -6,6 +6,7 @@
 
 #include <linux/io-64-nonatomic-hi-lo.h>
 #include <linux/kvm_host.h>
+#include <linux/list.h>
 #include <linux/of_platform.h>
 
 #include <asm/kvm_mmu.h>
@@ -22,6 +23,14 @@ struct s2mpu_irq_info {
 	void __iomem *va;
 };
 
+struct s2mpu_list_entry {
+	struct list_head list;
+	struct device *dev;
+	struct s2mpu info;
+};
+
+static LIST_HEAD(s2mpu_list);
+
 static irqreturn_t s2mpu_irq_handler(int irq, void *data)
 {
 	struct s2mpu_irq_info *info = data;
@@ -109,15 +118,16 @@ static u32 gen_ctx_cfg_valid_vid(struct platform_device *pdev,
 	     | CTX_CFG_ENTRY(7, ctx, ctx_vid[7]);
 }
 
-static int s2mpu_probe_v9(struct platform_device *pdev, void __iomem *kaddr)
+static int s2mpu_probe_v9(struct platform_device *pdev, void __iomem *kaddr,
+			  struct s2mpu *info)
 {
 	unsigned int num_ctx;
-	u32 ssmt_valid_vid_bmap, ctx_cfg_valid_vid;
+	u32 ssmt_valid_vid_bmap;
 
 	ssmt_valid_vid_bmap = ALL_VIDS_BITMAP;
 	num_ctx = readl_relaxed(kaddr + REG_NS_NUM_CONTEXT) & NUM_CONTEXT_MASK;
-	ctx_cfg_valid_vid = gen_ctx_cfg_valid_vid(pdev, num_ctx, ssmt_valid_vid_bmap);
-	if (!ctx_cfg_valid_vid) {
+	info->context_cfg_valid_vid = gen_ctx_cfg_valid_vid(pdev, num_ctx, ssmt_valid_vid_bmap);
+	if (!info->context_cfg_valid_vid) {
 		dev_err(&pdev->dev, "failed to allocate context IDs");
 		return -EINVAL;
 	}
@@ -168,10 +178,16 @@ static int s2mpu_probe(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *kaddr;
 	size_t res_size;
-	enum s2mpu_power_state power_state = S2MPU_POWER_ALWAYS_ON;
-	u32 version, power_domain_id = 0;
+	struct s2mpu_list_entry *entry;
+	struct s2mpu *info;
 	int ret;
 
+	entry = devm_kzalloc(&pdev->dev, sizeof(*entry), GFP_KERNEL);
+	if (!entry)
+		return -ENOMEM;
+	entry->dev = &pdev->dev;
+	info = &entry->info;
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "failed to parse 'reg'");
@@ -191,6 +207,7 @@ static int s2mpu_probe(struct platform_device *pdev)
 			res->start);
 		return -EINVAL;
 	}
+	info->pa = res->start;
 
 	res_size = resource_size(res);
 	if (res_size != S2MPU_MMIO_SIZE) {
@@ -201,9 +218,9 @@ static int s2mpu_probe(struct platform_device *pdev)
 	}
 
 	ret = of_property_read_u32(pdev->dev.of_node, "power-domain-id",
-				   &power_domain_id);
+				   &info->power_domain_id);
 	if (!ret) {
-		power_state = S2MPU_POWER_ON;
+		info->power_state = S2MPU_POWER_ON;
 	} else if (ret != -EINVAL) {
 		dev_err(&pdev->dev, "failed to parse power-domain-id: %d", ret);
 		return ret;
@@ -216,20 +233,23 @@ static int s2mpu_probe(struct platform_device *pdev)
 	 */
 	s2mpu_probe_irq(pdev, kaddr);
 
-	version = readl_relaxed(kaddr + REG_NS_VERSION);
-	switch (version & VERSION_CHECK_MASK) {
+	info->version = readl_relaxed(kaddr + REG_NS_VERSION);
+	switch (info->version & VERSION_CHECK_MASK) {
 	case S2MPU_VERSION_8:
 		break;
 	case S2MPU_VERSION_9:
-		ret = s2mpu_probe_v9(pdev, kaddr);
+		ret = s2mpu_probe_v9(pdev, kaddr, info);
 		if (ret)
 			return ret;
 		break;
 	default:
-		dev_err(&pdev->dev, "unexpected version 0x%08x", version);
+		dev_err(&pdev->dev, "unexpected version 0x%08x", info->version);
 		return -EINVAL;
 	}
 
+	/* Insert successfully parsed devices to a list later copied to hyp. */
+	list_add_tail(&entry->list, &s2mpu_list);
+	kvm_hyp_nr_s2mpus++;
 	return 0;
 }
 
@@ -245,16 +265,61 @@ static struct platform_driver of_driver = {
 	},
 };
 
+static struct s2mpu *alloc_s2mpu_array(void)
+{
+	unsigned int order;
+
+	order = get_order(kvm_hyp_nr_s2mpus * sizeof(struct s2mpu));
+	return (struct s2mpu *)__get_free_pages(GFP_KERNEL, order);
+}
+
+static void free_s2mpu_array(struct s2mpu *array)
+{
+	unsigned int order;
+
+	order = get_order(kvm_hyp_nr_s2mpus * sizeof(struct s2mpu));
+	free_pages((unsigned long)array, order);
+}
+
+static int create_s2mpu_array(struct s2mpu **array)
+{
+	struct s2mpu_list_entry *entry, *tmp;
+	size_t i;
+
+	*array = alloc_s2mpu_array();
+	if (!*array)
+		return -ENOMEM;
+
+	/* Copy list to hyp array and destroy the list in the process. */
+	i = 0;
+	list_for_each_entry_safe(entry, tmp, &s2mpu_list, list) {
+		(*array)[i++] = entry->info;
+		list_del(&entry->list);
+		devm_kfree(entry->dev, entry);
+	}
+	WARN_ON(i != kvm_hyp_nr_s2mpus);
+
+	kvm_hyp_s2mpus = kern_hyp_va(*array);
+	return 0;
+}
+
 int kvm_s2mpu_init(void)
 {
+	struct s2mpu *s2mpus = NULL;
 	int ret;
 
 	ret = platform_driver_probe(&of_driver, s2mpu_probe);
 	if (ret)
 		goto out;
 
+	ret = create_s2mpu_array(&s2mpus);
+	if (ret)
+		goto out;
+
 	kvm_info("S2MPU driver initialized\n");
 
 out:
+	if (ret)
+		free_s2mpu_array(s2mpus);
 	return ret;
 }
-- 
GitLab


From 8aa6c440da32317dcf821493b5cb08606fde3998 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 23 Jun 2021 09:18:32 +0000
Subject: [PATCH 0794/4878] ANDROID: KVM: arm64: Enable S2MPUs in
 __pkvm_init_stage2_iommu

Initialize the S2MPU driver in __pkvm_init_stage2_iommu if requested by
the host. The driver sets kvm_iommu_ops and configures all S2MPUs which
are powered on at that point (ie. all S2MPUs on currently supported
devices).

The S2MPU L1ENTRY registers are set to 1G granularity and R/W access.
CTRL0/CTRL1/CFG as set to reasonable defaults, though the code relies on
the reset state blocking all traffic as well.

On fault the S2MPUs are configured to return SLVERR/DECERR (v8/9) to the
master. Interrupts are enabled for all VIDs and trigger an IRQ handler
if EL1 init registered a handler as a result of a DT interrupts entry.

Because the host can configure the SSMTs freely, all permission bits are
configured for all VIDs. For v9 CONTEXT_CFG_VALID_VIDS is set to the
value precomputed at EL1, allocating a context ID to each VID.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I20e658a77c93fa18a07e388d13a639dc67e600d8
---
 arch/arm64/include/asm/kvm_s2mpu.h    |  52 +++++++++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 145 +++++++++++++++++++++++++-
 arch/arm64/kvm/iommu/s2mpu.c          |   2 -
 3 files changed, 194 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index d1ed76c5f066c..b8a0cd6701bd0 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -9,18 +9,41 @@
 
 #include <linux/bitfield.h>
 
+#define S2MPU_MMIO_SIZE				SZ_64K
+
 #define NR_VIDS					8
 #define NR_CTX_IDS				8
 
 #define ALL_VIDS_BITMAP				GENMASK(NR_VIDS - 1, 0)
 
+#define REG_NS_CTRL0				0x0
+#define REG_NS_CTRL1				0x4
+#define REG_NS_CFG				0x10
+#define REG_NS_INTERRUPT_ENABLE_PER_VID_SET	0x20
 #define REG_NS_INTERRUPT_CLEAR			0x2c
 #define REG_NS_VERSION				0x60
 #define REG_NS_NUM_CONTEXT			0x100
+#define REG_NS_CONTEXT_CFG_VALID_VID		0x104
+#define REG_NS_ALL_INVALIDATION			0x1000
 #define REG_NS_FAULT_STATUS			0x2000
 #define REG_NS_FAULT_PA_LOW(vid)		(0x2004 + ((vid) * 0x20))
 #define REG_NS_FAULT_PA_HIGH(vid)		(0x2008 + ((vid) * 0x20))
 #define REG_NS_FAULT_INFO(vid)			(0x2010 + ((vid) * 0x20))
+#define REG_NS_L1ENTRY_ATTR(vid, gb)		(0x4004 + ((vid) * 0x200) + ((gb) * 0x8))
+
+#define CTRL0_ENABLE				BIT(0)
+#define CTRL0_INTERRUPT_ENABLE			BIT(1)
+#define CTRL0_FAULT_RESP_TYPE_SLVERR		BIT(2) /* for v8 */
+#define CTRL0_FAULT_RESP_TYPE_DECERR		BIT(2) /* for v9 */
+
+#define CTRL1_DISABLE_CHK_S1L1PTW		BIT(0)
+#define CTRL1_DISABLE_CHK_S1L2PTW		BIT(1)
+#define CTRL1_ENABLE_PAGE_SIZE_AWARENESS	BIT(2)
+#define CTRL1_DISABLE_CHK_USER_MATCHED_REQ	BIT(3)
+
+#define CFG_MPTW_CACHE_OVERRIDE			BIT(0)
+#define CFG_MPTW_QOS_OVERRIDE			BIT(8)
+#define CFG_MPTW_SHAREABLE			BIT(16)
 
 /* For use with hi_lo_readq_relaxed(). */
 #define REG_NS_FAULT_PA_HIGH_LOW(vid)		REG_NS_FAULT_PA_LOW(vid)
@@ -41,6 +64,8 @@
 #define CONTEXT_CFG_VALID_VID_CTX_VID(ctx, vid)	\
 		FIELD_PREP(GENMASK((4 * (ctx) + 2), 4 * (ctx)), (vid))
 
+#define INVALIDATION_INVALIDATE			BIT(0)
+
 #define NR_FAULT_INFO_REGS			8
 #define FAULT_INFO_VID_MASK			GENMASK(26, 24)
 #define FAULT_INFO_TYPE_MASK			GENMASK(23, 21)
@@ -51,6 +76,25 @@
 #define FAULT_INFO_LEN_MASK			GENMASK(19, 16)
 #define FAULT_INFO_ID_MASK			GENMASK(15, 0)
 
+#define L1ENTRY_ATTR_PROT(prot)			FIELD_PREP(GENMASK(2, 1), prot)
+#define L1ENTRY_ATTR_1G(prot)			L1ENTRY_ATTR_PROT(prot)
+
+#define NR_GIGABYTES				64
+#define RO_GIGABYTES_FIRST			4
+#define RO_GIGABYTES_LAST			33
+
+/*
+ * Iterate over S2MPU gigabyte regions. Skip those that cannot be modified
+ * (the MMIO registers are read only, with reset value MPT_PROT_NONE).
+ */
+#define for_each_gb_in_range(i, first, last) \
+	for ((i) = (first); (i) <= (last) && (i) < NR_GIGABYTES; \
+	     (i) = (((i) + 1 == RO_GIGABYTES_FIRST) ? RO_GIGABYTES_LAST : (i)) + 1)
+
+#define for_each_gb(i)			for_each_gb_in_range(i, 0, NR_GIGABYTES - 1)
+#define for_each_vid(i)			for ((i) = 0; (i) < NR_VIDS; (i)++)
+#define for_each_gb_and_vid(gb, vid)	for_each_vid((vid)) for_each_gb((gb))
+
 enum s2mpu_version {
 	S2MPU_VERSION_8 = 0x11000000,
 	S2MPU_VERSION_9 = 0x20000000,
@@ -71,6 +115,14 @@ struct s2mpu {
 	u32 context_cfg_valid_vid;
 };
 
+enum mpt_prot {
+	MPT_PROT_NONE	= 0,
+	MPT_PROT_R	= BIT(0),
+	MPT_PROT_W	= BIT(1),
+	MPT_PROT_RW	= MPT_PROT_R | MPT_PROT_W,
+	MPT_PROT_MASK	= MPT_PROT_RW,
+};
+
 extern size_t kvm_nvhe_sym(kvm_hyp_nr_s2mpus);
 #define kvm_hyp_nr_s2mpus kvm_nvhe_sym(kvm_hyp_nr_s2mpus)
 
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 43fc1e693aef3..67cb98b3309ae 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -6,9 +6,148 @@
 
 #include <linux/kvm_host.h>
 
+#include <asm/kvm_asm.h>
 #include <asm/kvm_hyp.h>
+#include <asm/kvm_mmu.h>
+#include <asm/kvm_s2mpu.h>
 
-size_t __ro_after_init				kvm_hyp_nr_s2mpus;
-struct s2mpu __ro_after_init			*kvm_hyp_s2mpus;
+#include <nvhe/mm.h>
 
-const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){};
+#define for_each_s2mpu(i) \
+	for ((i) = &kvm_hyp_s2mpus[0]; (i) != &kvm_hyp_s2mpus[kvm_hyp_nr_s2mpus]; (i)++)
+
+#define for_each_powered_s2mpu(i) \
+	for_each_s2mpu((i)) if (is_powered_on((i)))
+
+size_t __ro_after_init		kvm_hyp_nr_s2mpus;
+struct s2mpu __ro_after_init	*kvm_hyp_s2mpus;
+
+static bool is_version(struct s2mpu *dev, u32 version)
+{
+	return (dev->version & VERSION_CHECK_MASK) == version;
+}
+
+static bool is_powered_on(struct s2mpu *dev)
+{
+	switch (dev->power_state) {
+	case S2MPU_POWER_ALWAYS_ON:
+	case S2MPU_POWER_ON:
+		return true;
+	case S2MPU_POWER_OFF:
+		return false;
+	default:
+		BUG();
+	}
+}
+
+/*
+ * Write CONTEXT_CFG_VALID_VID configuration before touching L1ENTRY* registers.
+ * Writes to those registers are ignored unless there is a context ID allocated
+ * to the corresponding VID (v9 only).
+ */
+static void __set_context_ids(struct s2mpu *dev)
+{
+	if (!is_version(dev, S2MPU_VERSION_9))
+		return;
+
+	writel_relaxed(dev->context_cfg_valid_vid,
+		       dev->va + REG_NS_CONTEXT_CFG_VALID_VID);
+}
+
+static void __set_control_regs(struct s2mpu *dev)
+{
+	u32 ctrl0 = 0, irq_vids;
+
+	/*
+	 * Note: We set the values of CTRL0, CTRL1 and CFG registers here but we
+	 * still rely on the correctness of their reset values. S2MPUs *must*
+	 * reset to a state where all DMA traffic is blocked until the hypervisor
+	 * writes its configuration to the S2MPU. A malicious EL1 could otherwise
+	 * attempt to bypass the permission checks in the window between powering
+	 * on the S2MPU and this function being called.
+	 */
+
+	/* Enable the S2MPU, otherwise all traffic would be allowed through. */
+	ctrl0 |= CTRL0_ENABLE;
+
+	/*
+	 * Enable interrupts on fault for all VIDs. The IRQ must also be
+	 * specified in DT to get unmasked in the GIC.
+	 */
+	ctrl0 |= CTRL0_INTERRUPT_ENABLE;
+	irq_vids = ALL_VIDS_BITMAP;
+
+	/* Return SLVERR/DECERR to device on permission fault. */
+	ctrl0 |= is_version(dev, S2MPU_VERSION_9) ? CTRL0_FAULT_RESP_TYPE_DECERR
+						  : CTRL0_FAULT_RESP_TYPE_SLVERR;
+
+	writel_relaxed(irq_vids, dev->va + REG_NS_INTERRUPT_ENABLE_PER_VID_SET);
+	writel_relaxed(0, dev->va + REG_NS_CFG);
+	writel_relaxed(0, dev->va + REG_NS_CTRL1);
+	writel_relaxed(ctrl0, dev->va + REG_NS_CTRL0);
+}
+
+static void __all_invalidation(struct s2mpu *dev)
+{
+	writel_relaxed(INVALIDATION_INVALIDATE,
+		       dev->va + REG_NS_ALL_INVALIDATION);
+}
+
+static void __set_l1entry_attr_with_prot(struct s2mpu *dev, unsigned int gb,
+					 unsigned int vid, enum mpt_prot prot)
+{
+	writel_relaxed(L1ENTRY_ATTR_1G(prot),
+		       dev->va + REG_NS_L1ENTRY_ATTR(vid, gb));
+}
+
+/**
+ * Initialize S2MPU device and set all GB regions to 1G granularity with
+ * given protection bits.
+ */
+static void initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
+{
+	unsigned int gb, vid;
+
+	/* Must write CONTEXT_CFG_VALID_VID before setting L1ENTRY registers. */
+	__set_context_ids(dev);
+
+	for_each_gb_and_vid(gb, vid)
+		__set_l1entry_attr_with_prot(dev, gb, vid, prot);
+	__all_invalidation(dev);
+
+	/* Set control registers, enable the S2MPU. */
+	__set_control_regs(dev);
+}
+
+static int s2mpu_init(void)
+{
+	struct s2mpu *dev;
+	int ret;
+
+	/* Map data structures in EL2 stage-1. */
+	ret = pkvm_create_mappings(kvm_hyp_s2mpus,
+				   kvm_hyp_s2mpus + kvm_hyp_nr_s2mpus,
+				   PAGE_HYP);
+	if (ret)
+		return ret;
+
+	/* Map S2MPU MMIO regions in EL2 stage-1. */
+	for_each_s2mpu(dev) {
+		dev->va = (void __iomem *)__pkvm_create_private_mapping(
+			dev->pa, S2MPU_MMIO_SIZE, PAGE_HYP_DEVICE);
+		if (IS_ERR_OR_NULL(dev->va))
+			return PTR_ERR(dev->va);
+	}
+
+	/*
+	 * Program all S2MPUs powered on at boot. Note that they may not be in
+	 * the blocking reset state as the bootloader may have programmed them.
+	 */
+	for_each_powered_s2mpu(dev)
+		initialize_with_prot(dev, MPT_PROT_RW);
+	return 0;
+}
+
+const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
+	.init = s2mpu_init,
+};
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 6d990c47146c9..9704d7951517e 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -12,8 +12,6 @@
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_s2mpu.h>
 
-#define S2MPU_MMIO_SIZE		SZ_64K
-
 #define CTX_CFG_ENTRY(ctxid, nr_ctx, vid) \
 	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
 	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
-- 
GitLab


From 8ca0b34fe468450b041cc7cf255b2f104ca084a1 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 29 Jun 2021 17:15:17 +0000
Subject: [PATCH 0795/4878] ANDROID: KVM: arm64: Reprogram S2MPUs in
 'host_smc_handler'

Intercept SMCs known to be used by the host to inform EL3 about power
events, either powering SoC blocks on or off.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I936f7aaecf3ec77ec252f067a3c1571aadba4cdb
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 76 +++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 67cb98b3309ae..e893e84af5b1f 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -11,7 +11,14 @@
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_s2mpu.h>
 
+#include <linux/arm-smccc.h>
+
 #include <nvhe/mm.h>
+#include <nvhe/spinlock.h>
+#include <nvhe/trap_handler.h>
+
+#define SMC_CMD_PREPARE_PD_ONOFF	0x82000410
+#define SMC_MODE_POWER_UP		1
 
 #define for_each_s2mpu(i) \
 	for ((i) = &kvm_hyp_s2mpus[0]; (i) != &kvm_hyp_s2mpus[kvm_hyp_nr_s2mpus]; (i)++)
@@ -22,6 +29,8 @@
 size_t __ro_after_init		kvm_hyp_nr_s2mpus;
 struct s2mpu __ro_after_init	*kvm_hyp_s2mpus;
 
+static hyp_spinlock_t		s2mpu_lock;
+
 static bool is_version(struct s2mpu *dev, u32 version)
 {
 	return (dev->version & VERSION_CHECK_MASK) == version;
@@ -40,6 +49,19 @@ static bool is_powered_on(struct s2mpu *dev)
 	}
 }
 
+static bool is_in_power_domain(struct s2mpu *dev, u64 power_domain_id)
+{
+	switch (dev->power_state) {
+	case S2MPU_POWER_ALWAYS_ON:
+		return false;
+	case S2MPU_POWER_ON:
+	case S2MPU_POWER_OFF:
+		return dev->power_domain_id == power_domain_id;
+	default:
+		BUG();
+	}
+}
+
 /*
  * Write CONTEXT_CFG_VALID_VID configuration before touching L1ENTRY* registers.
  * Writes to those registers are ignored unless there is a context ID allocated
@@ -119,6 +141,59 @@ static void initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
 	__set_control_regs(dev);
 }
 
+static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(u64, fn, host_ctxt, 0);
+	DECLARE_REG(u64, mode, host_ctxt, 1);
+	DECLARE_REG(u64, domain_id, host_ctxt, 2);
+	DECLARE_REG(u64, group, host_ctxt, 3);
+
+	struct arm_smccc_res res;
+	struct s2mpu *dev;
+
+	if (fn != SMC_CMD_PREPARE_PD_ONOFF)
+		return false; /* SMC not handled */
+
+	/*
+	 * Host is notifying EL3 that a power domain was turned on/off.
+	 * Use this SMC as a trigger to program the S2MPUs.
+	 * Note that the host may be malicious and issue this SMC arbitrarily.
+	 *
+	 * Power on:
+	 * It is paramount that the S2MPU reset state is enabled and blocking
+	 * all traffic. That way the host is forced to issue a power-on SMC to
+	 * unblock the S2MPUs.
+	 *
+	 * Power down:
+	 * A power-down SMC is a hint for hyp to stop updating the S2MPU, lest
+	 * writes to powered-down MMIO registers produce SErrors in the host.
+	 * However, hyp must perform one last update - putting the S2MPUs back
+	 * to their blocking reset state - in case the host does not actually
+	 * power them down and continues issuing DMA traffic.
+	 */
+
+	hyp_spin_lock(&s2mpu_lock);
+	arm_smccc_1_1_smc(fn, mode, domain_id, group, &res);
+	if (res.a0 == SMCCC_RET_SUCCESS) {
+		for_each_s2mpu(dev) {
+			if (!is_in_power_domain(dev, domain_id))
+				continue;
+
+			if (mode == SMC_MODE_POWER_UP) {
+				dev->power_state = S2MPU_POWER_ON;
+				initialize_with_prot(dev, MPT_PROT_RW);
+			} else {
+				initialize_with_prot(dev, MPT_PROT_NONE);
+				dev->power_state = S2MPU_POWER_OFF;
+			}
+		}
+	}
+	hyp_spin_unlock(&s2mpu_lock);
+
+	cpu_reg(host_ctxt, 0) = res.a0;
+	return true;  /* SMC handled */
+}
+
 static int s2mpu_init(void)
 {
 	struct s2mpu *dev;
@@ -150,4 +225,5 @@ static int s2mpu_init(void)
 
 const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
 	.init = s2mpu_init,
+	.host_smc_handler = s2mpu_host_smc_handler,
 };
-- 
GitLab


From f0e1de52ef17f205d499a3ee48a20d3c652d60f0 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 25 Jun 2021 11:06:23 +0000
Subject: [PATCH 0796/4878] ANDROID: KVM: arm64: Set up S2MPU Memory Protection
 Table

S2MPU Second-level Memory Protection Table is a PA-contiguous buffer
containing an array of 2-bit read/write entries at given granularity
for a given gigabyte physical address space region. The size of SMPT
varies per granularity but at the finest 4K granularity it is 64KB
PA-contiguous, aligned to 64KB.

Allocate sufficient number of SMPT buffers for the S2MPU driver assuming
4K granularity for 4K/16K PAGE_SIZE, and 64K granularity for 64K
PAGE_SIZE. We also assume that all S2MPUs share SMPTs for a given
gigabyte region. There are 34 gigabyte regions that can be set by the
driver (GBs 4-33 always block all traffic).

Hyp takes ownership of the memory in s2mpu_init and assigns pointers to
the buffers to L1ENTRY_L2TABLE_ADDR registers on init and power-on
events. The pointers remain static as the driver will only change
granularity between 1G and 4K/64K (depending on PAGE_SIZE).

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: If27436087ebba1dd0a977960d960d5eaff4279fd
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 42 +++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 59 ++++++++++++++++++++++++++-
 arch/arm64/kvm/iommu/s2mpu.c          | 53 +++++++++++++++++++++++-
 3 files changed, 151 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index b8a0cd6701bd0..ebddc28bb30ed 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -29,6 +29,7 @@
 #define REG_NS_FAULT_PA_LOW(vid)		(0x2004 + ((vid) * 0x20))
 #define REG_NS_FAULT_PA_HIGH(vid)		(0x2008 + ((vid) * 0x20))
 #define REG_NS_FAULT_INFO(vid)			(0x2010 + ((vid) * 0x20))
+#define REG_NS_L1ENTRY_L2TABLE_ADDR(vid, gb)	(0x4000 + ((vid) * 0x200) + ((gb) * 0x8))
 #define REG_NS_L1ENTRY_ATTR(vid, gb)		(0x4004 + ((vid) * 0x200) + ((gb) * 0x8))
 
 #define CTRL0_ENABLE				BIT(0)
@@ -76,12 +77,40 @@
 #define FAULT_INFO_LEN_MASK			GENMASK(19, 16)
 #define FAULT_INFO_ID_MASK			GENMASK(15, 0)
 
+#define L1ENTRY_L2TABLE_ADDR(pa)		((pa) >> 4)
+
+#define L1ENTRY_ATTR_L2TABLE_EN			BIT(0)
+#define L1ENTRY_ATTR_GRAN_4K			0x0
+#define L1ENTRY_ATTR_GRAN_64K			0x1
+#define L1ENTRY_ATTR_GRAN_2M			0x2
 #define L1ENTRY_ATTR_PROT(prot)			FIELD_PREP(GENMASK(2, 1), prot)
+#define L1ENTRY_ATTR_GRAN(gran)			FIELD_PREP(GENMASK(5, 4), gran)
 #define L1ENTRY_ATTR_1G(prot)			L1ENTRY_ATTR_PROT(prot)
+#define L1ENTRY_ATTR_L2(gran)			(L1ENTRY_ATTR_GRAN(gran) | \
+						 L1ENTRY_ATTR_L2TABLE_EN)
 
 #define NR_GIGABYTES				64
 #define RO_GIGABYTES_FIRST			4
 #define RO_GIGABYTES_LAST			33
+#define NR_RO_GIGABYTES				(RO_GIGABYTES_LAST - RO_GIGABYTES_FIRST + 1)
+#define NR_RW_GIGABYTES				(NR_GIGABYTES - NR_RO_GIGABYTES)
+
+#ifdef CONFIG_ARM64_64K_PAGES
+#define SMPT_GRAN				SZ_64K
+#define SMPT_GRAN_ATTR				L1ENTRY_ATTR_GRAN_64K
+#else
+#define SMPT_GRAN				SZ_4K
+#define SMPT_GRAN_ATTR				L1ENTRY_ATTR_GRAN_4K
+#endif
+static_assert(SMPT_GRAN <= PAGE_SIZE);
+
+#define MPT_PROT_BITS				2
+#define SMPT_WORD_SIZE				sizeof(u32)
+#define SMPT_ELEMS_PER_BYTE			(BITS_PER_BYTE / MPT_PROT_BITS)
+#define SMPT_NUM_ELEMS				(SZ_1G / SMPT_GRAN)
+#define SMPT_NUM_WORDS				(SMPT_SIZE / SMPT_WORD_SIZE)
+#define SMPT_SIZE				(SMPT_NUM_ELEMS / SMPT_ELEMS_PER_BYTE)
+#define SMPT_ORDER				get_order(SMPT_SIZE)
 
 /*
  * Iterate over S2MPU gigabyte regions. Skip those that cannot be modified
@@ -123,10 +152,23 @@ enum mpt_prot {
 	MPT_PROT_MASK	= MPT_PROT_RW,
 };
 
+struct fmpt {
+	u32 *smpt;
+	bool gran_1g;
+	enum mpt_prot prot;
+};
+
+struct mpt {
+	struct fmpt fmpt[NR_GIGABYTES];
+};
+
 extern size_t kvm_nvhe_sym(kvm_hyp_nr_s2mpus);
 #define kvm_hyp_nr_s2mpus kvm_nvhe_sym(kvm_hyp_nr_s2mpus)
 
 extern struct s2mpu *kvm_nvhe_sym(kvm_hyp_s2mpus);
 #define kvm_hyp_s2mpus kvm_nvhe_sym(kvm_hyp_s2mpus)
 
+extern struct mpt kvm_nvhe_sym(kvm_hyp_host_mpt);
+#define kvm_hyp_host_mpt kvm_nvhe_sym(kvm_hyp_host_mpt)
+
 #endif /* __ARM64_KVM_S2MPU_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index e893e84af5b1f..01a8b1fc721ea 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -13,6 +13,7 @@
 
 #include <linux/arm-smccc.h>
 
+#include <nvhe/memory.h>
 #include <nvhe/mm.h>
 #include <nvhe/spinlock.h>
 #include <nvhe/trap_handler.h>
@@ -28,6 +29,7 @@
 
 size_t __ro_after_init		kvm_hyp_nr_s2mpus;
 struct s2mpu __ro_after_init	*kvm_hyp_s2mpus;
+struct mpt			kvm_hyp_host_mpt;
 
 static hyp_spinlock_t		s2mpu_lock;
 
@@ -122,6 +124,26 @@ static void __set_l1entry_attr_with_prot(struct s2mpu *dev, unsigned int gb,
 		       dev->va + REG_NS_L1ENTRY_ATTR(vid, gb));
 }
 
+static void __set_l1entry_attr_with_fmpt(struct s2mpu *dev, unsigned int gb,
+					 unsigned int vid, struct fmpt *fmpt)
+{
+	if (fmpt->gran_1g) {
+		__set_l1entry_attr_with_prot(dev, gb, vid, fmpt->prot);
+	} else {
+		/* Order against writes to the SMPT. */
+		writel(L1ENTRY_ATTR_L2(SMPT_GRAN_ATTR),
+		       dev->va + REG_NS_L1ENTRY_ATTR(vid, gb));
+	}
+}
+
+static void __set_l1entry_l2table_addr(struct s2mpu *dev, unsigned int gb,
+				       unsigned int vid, phys_addr_t addr)
+{
+	/* Order against writes to the SMPT. */
+	writel(L1ENTRY_L2TABLE_ADDR(addr),
+	       dev->va + REG_NS_L1ENTRY_L2TABLE_ADDR(vid, gb));
+}
+
 /**
  * Initialize S2MPU device and set all GB regions to 1G granularity with
  * given protection bits.
@@ -141,6 +163,29 @@ static void initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
 	__set_control_regs(dev);
 }
 
+/**
+ * Initialize S2MPU device, set L2 table addresses and configure L1TABLE_ATTR
+ * registers according to the given MPT struct.
+ */
+static void initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
+{
+	unsigned int gb, vid;
+	struct fmpt *fmpt;
+
+	/* Must write CONTEXT_CFG_VALID_VID before setting L1ENTRY registers. */
+	__set_context_ids(dev);
+
+	for_each_gb_and_vid(gb, vid) {
+		fmpt = &mpt->fmpt[gb];
+		__set_l1entry_l2table_addr(dev, gb, vid, __hyp_pa(fmpt->smpt));
+		__set_l1entry_attr_with_fmpt(dev, gb, vid, fmpt);
+	}
+	__all_invalidation(dev);
+
+	/* Set control registers, enable the S2MPU. */
+	__set_control_regs(dev);
+}
+
 static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, fn, host_ctxt, 0);
@@ -181,7 +226,7 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 
 			if (mode == SMC_MODE_POWER_UP) {
 				dev->power_state = S2MPU_POWER_ON;
-				initialize_with_prot(dev, MPT_PROT_RW);
+				initialize_with_mpt(dev, &kvm_hyp_host_mpt);
 			} else {
 				initialize_with_prot(dev, MPT_PROT_NONE);
 				dev->power_state = S2MPU_POWER_OFF;
@@ -197,6 +242,7 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 static int s2mpu_init(void)
 {
 	struct s2mpu *dev;
+	unsigned int gb;
 	int ret;
 
 	/* Map data structures in EL2 stage-1. */
@@ -206,6 +252,15 @@ static int s2mpu_init(void)
 	if (ret)
 		return ret;
 
+	for_each_gb(gb) {
+		ret = pkvm_create_mappings(
+			kvm_hyp_host_mpt.fmpt[gb].smpt,
+			kvm_hyp_host_mpt.fmpt[gb].smpt + SMPT_NUM_WORDS,
+			PAGE_HYP);
+		if (ret)
+			return ret;
+	}
+
 	/* Map S2MPU MMIO regions in EL2 stage-1. */
 	for_each_s2mpu(dev) {
 		dev->va = (void __iomem *)__pkvm_create_private_mapping(
@@ -219,7 +274,7 @@ static int s2mpu_init(void)
 	 * the blocking reset state as the bootloader may have programmed them.
 	 */
 	for_each_powered_s2mpu(dev)
-		initialize_with_prot(dev, MPT_PROT_RW);
+		initialize_with_mpt(dev, &kvm_hyp_host_mpt);
 	return 0;
 }
 
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 9704d7951517e..ce4b32453b7ce 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -301,9 +301,54 @@ static int create_s2mpu_array(struct s2mpu **array)
 	return 0;
 }
 
+static int alloc_smpts(struct mpt *mpt)
+{
+	unsigned int gb;
+
+	for_each_gb(gb) {
+		/* The returned buffer is aligned to its size, as required. */
+		mpt->fmpt[gb].smpt = (u32 *)__get_free_pages(GFP_KERNEL, SMPT_ORDER);
+		if (!mpt->fmpt[gb].smpt)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void free_smpts(struct mpt *mpt)
+{
+	unsigned int gb;
+
+	for_each_gb(gb)
+		free_pages((unsigned long)mpt->fmpt[gb].smpt, SMPT_ORDER);
+}
+
+static int init_host_mpt(struct mpt *mpt)
+{
+	unsigned int gb;
+	int ret;
+
+	ret = alloc_smpts(mpt);
+	if (ret) {
+		kvm_err("Cannot allocate memory for S2MPU host MPT");
+		return ret;
+	}
+
+	/* Initialize the host MPT. Use 1G mappings with RW permissions. */
+	for_each_gb(gb) {
+		kvm_hyp_host_mpt.fmpt[gb] = (struct fmpt){
+			.gran_1g = true,
+			.prot = MPT_PROT_RW,
+			.smpt = kern_hyp_va(mpt->fmpt[gb].smpt),
+		};
+	}
+	return 0;
+}
+
 int kvm_s2mpu_init(void)
 {
 	struct s2mpu *s2mpus = NULL;
+	struct mpt mpt = {};
 	int ret;
 
 	ret = platform_driver_probe(&of_driver, s2mpu_probe);
@@ -314,10 +359,16 @@ int kvm_s2mpu_init(void)
 	if (ret)
 		goto out;
 
+	ret = init_host_mpt(&mpt);
+	if (ret)
+		goto out;
+
 	kvm_info("S2MPU driver initialized\n");
 
 out:
-	if (ret)
+	if (ret) {
 		free_s2mpu_array(s2mpus);
+		free_smpts(&mpt);
+	}
 	return ret;
 }
-- 
GitLab


From 4475d993aa0c74460e8f90e88919dee7fe0e4258 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 29 Jun 2021 19:10:14 +0000
Subject: [PATCH 0797/4878] ANDROID: KVM: arm64: Modify S2MPU MPT in
 'host_stage2_set_owner'

The 'host_stage2_set_owner' callback indicates that a range of
PA-contiguous pages changed owner. With all devices owned by the host,
the driver sets the protection bits in the corresponding FMPT/SMPT to
either MPT_PROT_RW if owned by the host or MPT_PROT_NONE otherwise.

For each gigabyte region, the implementation will select between 1G and
4K/64K (depending on PAGE_SIZE) mappings and populate the L1ENTRY_ATTR
register or SMPT bitmap, respectivelly.

The driver never dynamically switches between two granularities which
both require a SMPT. This is because the L1ENTRY_ATTR and
L1ENTRY_L2TABLE_ADDR registers would need to be set atomically.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I9d21df4c615e436285a08720216ac5119e1cfeef
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 141 ++++++++++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c |  85 ++++++++++++++++
 2 files changed, 226 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index ebddc28bb30ed..6904ae20a99fa 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -9,6 +9,8 @@
 
 #include <linux/bitfield.h>
 
+#include <asm/kvm_mmu.h>
+
 #define S2MPU_MMIO_SIZE				SZ_64K
 
 #define NR_VIDS					8
@@ -25,6 +27,9 @@
 #define REG_NS_NUM_CONTEXT			0x100
 #define REG_NS_CONTEXT_CFG_VALID_VID		0x104
 #define REG_NS_ALL_INVALIDATION			0x1000
+#define REG_NS_RANGE_INVALIDATION		0x1020
+#define REG_NS_RANGE_INVALIDATION_START_PPN	0x1024
+#define REG_NS_RANGE_INVALIDATION_END_PPN	0x1028
 #define REG_NS_FAULT_STATUS			0x2000
 #define REG_NS_FAULT_PA_LOW(vid)		(0x2004 + ((vid) * 0x20))
 #define REG_NS_FAULT_PA_HIGH(vid)		(0x2008 + ((vid) * 0x20))
@@ -66,6 +71,7 @@
 		FIELD_PREP(GENMASK((4 * (ctx) + 2), 4 * (ctx)), (vid))
 
 #define INVALIDATION_INVALIDATE			BIT(0)
+#define RANGE_INVALIDATION_PPN_SHIFT		12
 
 #define NR_FAULT_INFO_REGS			8
 #define FAULT_INFO_VID_MASK			GENMASK(26, 24)
@@ -107,6 +113,8 @@ static_assert(SMPT_GRAN <= PAGE_SIZE);
 #define MPT_PROT_BITS				2
 #define SMPT_WORD_SIZE				sizeof(u32)
 #define SMPT_ELEMS_PER_BYTE			(BITS_PER_BYTE / MPT_PROT_BITS)
+#define SMPT_ELEMS_PER_WORD			(SMPT_WORD_SIZE * SMPT_ELEMS_PER_BYTE)
+#define SMPT_WORD_BYTE_RANGE			(SMPT_GRAN * SMPT_ELEMS_PER_WORD)
 #define SMPT_NUM_ELEMS				(SZ_1G / SMPT_GRAN)
 #define SMPT_NUM_WORDS				(SMPT_SIZE / SMPT_WORD_SIZE)
 #define SMPT_SIZE				(SMPT_NUM_ELEMS / SMPT_ELEMS_PER_BYTE)
@@ -152,6 +160,13 @@ enum mpt_prot {
 	MPT_PROT_MASK	= MPT_PROT_RW,
 };
 
+static const u64 mpt_prot_doubleword[] = {
+	[MPT_PROT_NONE] = 0x0000000000000000,
+	[MPT_PROT_R]    = 0x5555555555555555,
+	[MPT_PROT_W]	= 0xaaaaaaaaaaaaaaaa,
+	[MPT_PROT_RW]   = 0xffffffffffffffff,
+};
+
 struct fmpt {
 	u32 *smpt;
 	bool gran_1g;
@@ -162,6 +177,11 @@ struct mpt {
 	struct fmpt fmpt[NR_GIGABYTES];
 };
 
+enum mpt_update_flags {
+	MPT_UPDATE_L1 = BIT(0),
+	MPT_UPDATE_L2 = BIT(1),
+};
+
 extern size_t kvm_nvhe_sym(kvm_hyp_nr_s2mpus);
 #define kvm_hyp_nr_s2mpus kvm_nvhe_sym(kvm_hyp_nr_s2mpus)
 
@@ -171,4 +191,125 @@ extern struct s2mpu *kvm_nvhe_sym(kvm_hyp_s2mpus);
 extern struct mpt kvm_nvhe_sym(kvm_hyp_host_mpt);
 #define kvm_hyp_host_mpt kvm_nvhe_sym(kvm_hyp_host_mpt)
 
+/* Set protection bits of SMPT in a given range without using memset. */
+static inline void __set_smpt_range_slow(u32 *smpt, size_t start_gb_byte,
+					 size_t end_gb_byte, enum mpt_prot prot)
+{
+	size_t i, start_word_byte, end_word_byte, word_idx, first_elem, last_elem;
+	u32 val;
+
+	/* Iterate over u32 words. */
+	start_word_byte = start_gb_byte;
+	while (start_word_byte < end_gb_byte) {
+		/* Determine the range of bytes covered by this word. */
+		word_idx = start_word_byte / SMPT_WORD_BYTE_RANGE;
+		end_word_byte = min(
+			ALIGN(start_word_byte + 1, SMPT_WORD_BYTE_RANGE),
+			end_gb_byte);
+
+		/* Identify protection bit offsets within the word. */
+		first_elem = (start_word_byte / SMPT_GRAN) % SMPT_ELEMS_PER_WORD;
+		last_elem = ((end_word_byte - 1) / SMPT_GRAN) % SMPT_ELEMS_PER_WORD;
+
+		/* Modify the corresponding word. */
+		val = READ_ONCE(smpt[word_idx]);
+		for (i = first_elem; i <= last_elem; i++) {
+			val &= ~(MPT_PROT_MASK << (i * MPT_PROT_BITS));
+			val |= prot << (i * MPT_PROT_BITS);
+		}
+		WRITE_ONCE(smpt[word_idx], val);
+
+		start_word_byte = end_word_byte;
+	}
+}
+
+/* Set protection bits of SMPT in a given range. */
+static inline void __set_smpt_range(u32 *smpt, size_t start_gb_byte,
+				    size_t end_gb_byte, enum mpt_prot prot)
+{
+	size_t interlude_start, interlude_end, interlude_bytes, word_idx;
+	char prot_byte = (char)mpt_prot_doubleword[prot];
+
+	if (start_gb_byte >= end_gb_byte)
+		return;
+
+	/* Check if range spans at least one full u32 word. */
+	interlude_start = ALIGN(start_gb_byte, SMPT_WORD_BYTE_RANGE);
+	interlude_end = ALIGN_DOWN(end_gb_byte, SMPT_WORD_BYTE_RANGE);
+
+	/* If not, fall back to editing bits in the given range. */
+	if (interlude_start >= interlude_end) {
+		__set_smpt_range_slow(smpt, start_gb_byte, end_gb_byte, prot);
+		return;
+	}
+
+	/* Use bit-editing for prologue/epilogue, memset for interlude. */
+	word_idx = interlude_start / SMPT_WORD_BYTE_RANGE;
+	interlude_bytes = (interlude_end - interlude_start) / SMPT_GRAN / SMPT_ELEMS_PER_BYTE;
+
+	__set_smpt_range_slow(smpt, start_gb_byte, interlude_start, prot);
+	memset(&smpt[word_idx], prot_byte, interlude_bytes);
+	__set_smpt_range_slow(smpt, interlude_end, end_gb_byte, prot);
+}
+
+/* Returns true if all SMPT protection bits match 'prot'. */
+static inline bool __is_smpt_uniform(u32 *smpt, enum mpt_prot prot)
+{
+	size_t i;
+	u64 *doublewords = (u64 *)smpt;
+
+	for (i = 0; i < SMPT_NUM_WORDS / 2; i++) {
+		if (doublewords[i] != mpt_prot_doubleword[prot])
+			return false;
+	}
+	return true;
+}
+
+/**
+ * Set protection bits of FMPT/SMPT in a given range.
+ * Returns flags specifying whether L1/L2 changes need to be made visible
+ * to the device.
+ */
+static inline enum mpt_update_flags
+__set_fmpt_range(struct fmpt *fmpt, size_t start_gb_byte, size_t end_gb_byte,
+		 enum mpt_prot prot)
+{
+	if (start_gb_byte == 0 && end_gb_byte >= SZ_1G) {
+		/* Update covers the entire GB region. */
+		if (fmpt->gran_1g && fmpt->prot == prot)
+			return 0;
+
+		fmpt->gran_1g = true;
+		fmpt->prot = prot;
+		return MPT_UPDATE_L1;
+	}
+
+	if (fmpt->gran_1g) {
+		/* GB region currently uses 1G mapping. */
+		if (fmpt->prot == prot)
+			return 0;
+
+		/*
+		 * Range has different mapping than the rest of the GB.
+		 * Convert to PAGE_SIZE mapping.
+		 */
+		fmpt->gran_1g = false;
+		__set_smpt_range(fmpt->smpt, 0, start_gb_byte, fmpt->prot);
+		__set_smpt_range(fmpt->smpt, start_gb_byte, end_gb_byte, prot);
+		__set_smpt_range(fmpt->smpt, end_gb_byte, SZ_1G, fmpt->prot);
+		return MPT_UPDATE_L1 | MPT_UPDATE_L2;
+	}
+
+	/* GB region currently uses PAGE_SIZE mapping. */
+	__set_smpt_range(fmpt->smpt, start_gb_byte, end_gb_byte, prot);
+
+	/* Check if the entire GB region has the same prot bits. */
+	if (!__is_smpt_uniform(fmpt->smpt, prot))
+		return MPT_UPDATE_L2;
+
+	fmpt->gran_1g = true;
+	fmpt->prot = prot;
+	return MPT_UPDATE_L1;
+}
+
 #endif /* __ARM64_KVM_S2MPU_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 01a8b1fc721ea..7a735cdca80bc 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -21,6 +21,8 @@
 #define SMC_CMD_PREPARE_PD_ONOFF	0x82000410
 #define SMC_MODE_POWER_UP		1
 
+#define PA_MAX				((phys_addr_t)SZ_1G * NR_GIGABYTES)
+
 #define for_each_s2mpu(i) \
 	for ((i) = &kvm_hyp_s2mpus[0]; (i) != &kvm_hyp_s2mpus[kvm_hyp_nr_s2mpus]; (i)++)
 
@@ -117,6 +119,17 @@ static void __all_invalidation(struct s2mpu *dev)
 		       dev->va + REG_NS_ALL_INVALIDATION);
 }
 
+static void __range_invalidation(struct s2mpu *dev, phys_addr_t first_byte,
+				 phys_addr_t last_byte)
+{
+	u32 start_ppn = first_byte >> RANGE_INVALIDATION_PPN_SHIFT;
+	u32 end_ppn = last_byte >> RANGE_INVALIDATION_PPN_SHIFT;
+
+	writel_relaxed(start_ppn, dev->va + REG_NS_RANGE_INVALIDATION_START_PPN);
+	writel_relaxed(end_ppn, dev->va + REG_NS_RANGE_INVALIDATION_END_PPN);
+	writel_relaxed(INVALIDATION_INVALIDATE, dev->va + REG_NS_RANGE_INVALIDATION);
+}
+
 static void __set_l1entry_attr_with_prot(struct s2mpu *dev, unsigned int gb,
 					 unsigned int vid, enum mpt_prot prot)
 {
@@ -186,6 +199,77 @@ static void initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
 	__set_control_regs(dev);
 }
 
+/**
+ * Set MPT protection bits set to 'prot' in the give byte range (page-aligned).
+ * Update currently powered S2MPUs.
+ */
+static void set_mpt_range_locked(struct mpt *mpt, phys_addr_t first_byte,
+				 phys_addr_t last_byte, enum mpt_prot prot)
+{
+	unsigned int first_gb = first_byte / SZ_1G;
+	unsigned int last_gb = last_byte / SZ_1G;
+	size_t start_gb_byte, end_gb_byte;
+	unsigned int gb, vid;
+	struct s2mpu *dev;
+	struct fmpt *fmpt;
+	enum mpt_update_flags flags;
+
+	for_each_gb_in_range(gb, first_gb, last_gb) {
+		fmpt = &mpt->fmpt[gb];
+		start_gb_byte = (gb == first_gb) ? first_byte % SZ_1G : 0;
+		end_gb_byte = (gb == last_gb) ? (last_byte % SZ_1G) + 1 : SZ_1G;
+
+		flags = __set_fmpt_range(fmpt, start_gb_byte, end_gb_byte, prot);
+
+		if (flags & MPT_UPDATE_L2)
+			kvm_flush_dcache_to_poc(fmpt->smpt, SMPT_SIZE);
+
+		if (flags & MPT_UPDATE_L1) {
+			for_each_powered_s2mpu(dev) {
+				for_each_vid(vid)
+					__set_l1entry_attr_with_fmpt(dev, gb, vid, fmpt);
+			}
+		}
+	}
+
+	/* Invalidate range in all powered S2MPUs. */
+	for_each_powered_s2mpu(dev)
+		__range_invalidation(dev, first_byte, last_byte);
+}
+
+static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size, u8 owner_id)
+{
+	/* Grant access only to the default owner of the page table (ID=0). */
+	enum mpt_prot prot = owner_id ? MPT_PROT_NONE : MPT_PROT_RW;
+
+	/*
+	 * NOTE: The following code refers to 'end' as the exclusive upper
+	 * bound and 'last' as the inclusive one.
+	 */
+
+	/*
+	 * Sanitize inputs with S2MPU-specific physical address space bounds.
+	 * Ownership change requests outside this boundary will be ignored.
+	 * The S2MPU also specifies that the PA region 4-34GB always maps to
+	 * PROT_NONE and the corresponding MMIO registers are read-only.
+	 * Ownership changes in this region will have no effect.
+	 */
+
+	if (addr >= PA_MAX)
+		return;
+
+	size = min(size, (size_t)(PA_MAX - addr));
+	if (size == 0)
+		return;
+
+	hyp_spin_lock(&s2mpu_lock);
+	set_mpt_range_locked(&kvm_hyp_host_mpt,
+			     ALIGN_DOWN(addr, SMPT_GRAN),
+			     ALIGN(addr + size, SMPT_GRAN) - 1,
+			     prot);
+	hyp_spin_unlock(&s2mpu_lock);
+}
+
 static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, fn, host_ctxt, 0);
@@ -281,4 +365,5 @@ static int s2mpu_init(void)
 const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
 	.init = s2mpu_init,
 	.host_smc_handler = s2mpu_host_smc_handler,
+	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
 };
-- 
GitLab


From 6b75c0e0de11d095fe02e4ea60d888c0eb4ce21b Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 13 Oct 2021 18:25:41 +0100
Subject: [PATCH 0798/4878] ANDROID: KVM: arm64: Add S2MPU kselftest

Add a kselftest which exercises the S2MPU's MPT logic. The functions are
included into a kernel module and exercised in EL1. This is because
testing the EL2 driver itself would require generating DMA traffic and
probing the S2MPU without crashing the system. Instead, the logic is
used on a local FMPT/SMPT and the results are inspected.

Test: run kvm/aarch64/s2mpu kselftest
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ib1e572e3247d864e59fad8a4960e38956237ef8c
---
 arch/arm64/kvm/Kconfig                       |   6 +
 arch/arm64/kvm/iommu/Makefile                |   1 +
 arch/arm64/kvm/iommu/test_kvm_s2mpu.c        | 298 +++++++++++++++++++
 tools/testing/selftests/kvm/Makefile         |   2 +
 tools/testing/selftests/kvm/aarch64/s2mpu.sh |   4 +
 5 files changed, 311 insertions(+)
 create mode 100644 arch/arm64/kvm/iommu/test_kvm_s2mpu.c
 create mode 100755 tools/testing/selftests/kvm/aarch64/s2mpu.sh

diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 982337ba53326..408dc0ff661e0 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -65,4 +65,10 @@ config KVM_S2MPU
 	  hypervisor to restrict DMA access to its memory and the memory of
 	  protected guests.
 
+config TEST_KVM_S2MPU
+	tristate "Test kernel module for S2MPU"
+	depends on KVM_S2MPU
+	help
+	  Kernel module for kselftests that exercises the KVM S2MPU driver.
+
 endif # VIRTUALIZATION
diff --git a/arch/arm64/kvm/iommu/Makefile b/arch/arm64/kvm/iommu/Makefile
index 2a51f8cb28484..cb3242c77b4cc 100644
--- a/arch/arm64/kvm/iommu/Makefile
+++ b/arch/arm64/kvm/iommu/Makefile
@@ -4,3 +4,4 @@
 #
 
 obj-$(CONFIG_KVM_S2MPU) += s2mpu.o
+obj-$(CONFIG_TEST_KVM_S2MPU) += test_kvm_s2mpu.o
diff --git a/arch/arm64/kvm/iommu/test_kvm_s2mpu.c b/arch/arm64/kvm/iommu/test_kvm_s2mpu.c
new file mode 100644
index 0000000000000..67cc37f00dee3
--- /dev/null
+++ b/arch/arm64/kvm/iommu/test_kvm_s2mpu.c
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "../../../tools/testing/selftests/kselftest_module.h"
+
+#include <linux/slab.h>
+
+#include <asm/kvm_s2mpu.h>
+
+KSTM_MODULE_GLOBALS();
+
+/*
+ * Kernel module for testing the foobinator
+ */
+
+#define ASSERT(cond)							\
+	do {								\
+		if (!(cond)) {						\
+			pr_err("line %d: assertion failed: %s\n",	\
+			       __LINE__, #cond);			\
+			return -1;					\
+		}							\
+	} while (0)
+
+static struct fmpt g_fmpt;
+static u32 g_smpt[SMPT_NUM_WORDS];
+
+static void __init init_smpt(enum mpt_prot prot)
+{
+	memset(g_smpt, (char)mpt_prot_doubleword[prot], SMPT_SIZE);
+}
+
+static void __init init_fmpt(enum mpt_prot prot, bool gran_1g)
+{
+	init_smpt(prot);
+	g_fmpt = (struct fmpt){
+		.gran_1g = gran_1g,
+		.prot = prot,
+		.smpt = g_smpt,
+	};
+}
+
+static enum mpt_prot __init get_prot_at(size_t gb_byte_off)
+{
+	size_t page_idx = gb_byte_off / SMPT_GRAN;
+	size_t word_idx = page_idx / SMPT_ELEMS_PER_WORD;
+	size_t bit_shift = (page_idx % SMPT_ELEMS_PER_WORD) * MPT_PROT_BITS;
+
+	return (g_smpt[word_idx] >> bit_shift) & MPT_PROT_MASK;
+}
+
+static bool __init check_smpt(size_t start_byte, size_t end_byte,
+			      enum mpt_prot prot_out, enum mpt_prot prot_in)
+{
+	size_t off;
+
+	for (off = 0; off < start_byte; off += PAGE_SIZE) {
+		if (get_prot_at(off) != prot_out)
+			return false;
+	}
+	for (off = start_byte; off < end_byte; off += PAGE_SIZE) {
+		if (get_prot_at(off) != prot_in)
+			return false;
+	}
+	for (off = end_byte; off < SZ_1G; off += PAGE_SIZE) {
+		if (get_prot_at(off) != prot_out)
+			return false;
+	}
+	return true;
+}
+
+/* Start with 1G granule, overwrite the whole 1G. */
+static int __init test_set_fmpt__fmpt_to_fmpt_whole(void)
+{
+	enum mpt_update_flags flags;
+
+	init_fmpt(MPT_PROT_NONE, /*gran_1g*/ true);
+	flags = __set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
+	ASSERT(flags == MPT_UPDATE_L1);
+	ASSERT(g_fmpt.gran_1g);
+	ASSERT(g_fmpt.prot == MPT_PROT_R);
+	return 0;
+}
+
+/* Start with 1G granule, overwrite the whole 1G with the same prot. */
+static int __init test_set_fmpt__fmpt_no_change_whole(void)
+{
+	enum mpt_update_flags flags;
+
+	init_fmpt(MPT_PROT_R, /*gran_1g*/ true);
+	flags = __set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
+	ASSERT(flags == 0);
+	ASSERT(g_fmpt.gran_1g);
+	ASSERT(g_fmpt.prot == MPT_PROT_R);
+	return 0;
+}
+
+/* Start with 1G granule, partially overwrite with the same prot. */
+static int __init test_set_fmpt__fmpt_no_change_partial(void)
+{
+	enum mpt_update_flags flags;
+
+	init_fmpt(MPT_PROT_R, /*gran_1g*/ true);
+	flags = __set_fmpt_range(&g_fmpt, 0, PAGE_SIZE, MPT_PROT_R);
+	ASSERT(flags == 0);
+	ASSERT(g_fmpt.gran_1g);
+	ASSERT(g_fmpt.prot == MPT_PROT_R);
+	return 0;
+}
+
+/* Convert from 1G to PAGE_SIZE granule. */
+static int __init test_set_fmpt__fmpt_to_smpt(void)
+{
+	size_t start = 5 * SMPT_WORD_BYTE_RANGE / 2;
+	size_t end = 20 * SMPT_WORD_BYTE_RANGE;
+	enum mpt_update_flags flags;
+
+	init_fmpt(MPT_PROT_R, /*gran_1g*/ true);
+	flags = __set_fmpt_range(&g_fmpt, start, end, MPT_PROT_RW);
+	ASSERT(flags == (MPT_UPDATE_L1 | MPT_UPDATE_L2));
+	ASSERT(!g_fmpt.gran_1g);
+	return check_smpt(start, end, MPT_PROT_R, MPT_PROT_RW) ? 0 : 1;
+}
+
+/* Convert from PAGE_SIZE to 1G granule by overwriting the whole 1G. */
+static int __init test_set_fmpt__smpt_to_fmpt_whole(void)
+{
+	enum mpt_update_flags flags;
+
+	init_fmpt(MPT_PROT_NONE, /*gran_1g*/ false);
+	flags = __set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
+	ASSERT(flags == MPT_UPDATE_L1);
+	ASSERT(g_fmpt.gran_1g);
+	ASSERT(g_fmpt.prot == MPT_PROT_R);
+	return 0;
+}
+
+/* Convert from PAGE_SIZE to 1G granule by making the SMPT uniform. */
+static int __init test_set_fmpt__smpt_to_fmpt_partial(void)
+{
+	size_t start = 5 * SMPT_WORD_BYTE_RANGE / 2;
+	size_t end = 20 * SMPT_WORD_BYTE_RANGE;
+	enum mpt_update_flags flags;
+
+	/* Create SMPT with all PROT_W except a small subrange. */
+	init_fmpt(MPT_PROT_W, /*gran_1g*/ false);
+	__set_smpt_range(g_smpt, start, end, MPT_PROT_RW);
+
+	/* Fill the subrange with PROT_W to make the SMPT uniform. */
+	flags = __set_fmpt_range(&g_fmpt, start, end, MPT_PROT_W);
+	ASSERT(flags == MPT_UPDATE_L1);
+	ASSERT(g_fmpt.gran_1g);
+	ASSERT(g_fmpt.prot == MPT_PROT_W);
+	return 0;
+}
+
+/* Keep PAGE_SIZE granule when SMPT not uniform after update. */
+static int __init test_set_fmpt__smpt_to_smpt(void)
+{
+	size_t start = SZ_1G - SMPT_GRAN;
+	size_t end = SZ_1G;
+	enum mpt_update_flags flags;
+
+	init_fmpt(MPT_PROT_NONE, /*gran_1g*/ false);
+	ASSERT(__is_smpt_uniform(g_smpt, MPT_PROT_NONE));
+
+	/* Fill the subrange with PROT_W to make the SMPT uniform. */
+	flags = __set_fmpt_range(&g_fmpt, start, end, MPT_PROT_RW);
+	ASSERT(flags == MPT_UPDATE_L2);
+	ASSERT(!g_fmpt.gran_1g);
+	ASSERT(!__is_smpt_uniform(g_smpt, MPT_PROT_NONE));
+	return 0;
+}
+
+static int __init __test_set_smpt(size_t start_byte, size_t end_byte)
+{
+	init_smpt(MPT_PROT_NONE);
+	__set_smpt_range(g_smpt, start_byte, end_byte, MPT_PROT_W);
+	return check_smpt(start_byte, end_byte, MPT_PROT_NONE, MPT_PROT_W) ? 0 : 1;
+}
+
+/* Range within one SMPT word, force a fallback to __set_smpt_range_slow. */
+static int __init test_set_smpt__within_one_word(void)
+{
+	return __test_set_smpt(3 * SMPT_WORD_BYTE_RANGE + 5 * PAGE_SIZE,
+			       3 * SMPT_WORD_BYTE_RANGE + 6 * PAGE_SIZE);
+}
+
+/* No whole SMPT word, force a fallback to __set_smpt_range_slow. */
+static int __init test_set_smpt__no_whole_word(void)
+{
+	return __test_set_smpt(3 * SMPT_WORD_BYTE_RANGE + 5 * PAGE_SIZE,
+			       4 * SMPT_WORD_BYTE_RANGE + 2 * PAGE_SIZE);
+}
+
+/* Both start and end aligned to SMPT word. */
+static int __init test_set_smpt__no_prologue_or_epilogue(void)
+{
+	return __test_set_smpt(10 * SMPT_WORD_BYTE_RANGE,
+			       20 * SMPT_WORD_BYTE_RANGE);
+}
+
+/* Start not aligned to SMPT word. */
+static int __init test_set_smpt__prologue(void)
+{
+	return __test_set_smpt(17 * SMPT_WORD_BYTE_RANGE / 2,
+			       20 * SMPT_WORD_BYTE_RANGE);
+}
+
+/* End not aligned to SMPT word. */
+static int __init test_set_smpt__epilogue(void)
+{
+	return __test_set_smpt(0, 17 * SMPT_WORD_BYTE_RANGE / 2);
+}
+
+/* Neither start nor end aligned to SMPT word. */
+static int __init test_set_smpt__prologue_and_epilogue(void)
+{
+	return __test_set_smpt(17 * SMPT_WORD_BYTE_RANGE / 2,
+			       31 * SMPT_WORD_BYTE_RANGE / 2);
+}
+
+static int __init __test_set_smpt_slow(size_t start_byte, size_t end_byte)
+{
+	init_smpt(MPT_PROT_NONE);
+	__set_smpt_range_slow(g_smpt, start_byte, end_byte, MPT_PROT_RW);
+	return check_smpt(start_byte, end_byte, MPT_PROT_NONE, MPT_PROT_RW) ? 0 : 1;
+}
+
+static int __init test_set_smpt_slow__empty_word_align(void)
+{
+	return __test_set_smpt_slow(3 * SMPT_WORD_BYTE_RANGE,
+				    3 * SMPT_WORD_BYTE_RANGE);
+}
+
+static int __init test_set_smpt_slow__empty_page_align(void)
+{
+	return __test_set_smpt_slow(3 * SMPT_WORD_BYTE_RANGE + PAGE_SIZE,
+				    3 * SMPT_WORD_BYTE_RANGE + PAGE_SIZE);
+}
+
+static int __init test_set_smpt_slow__one_whole_word(void)
+{
+	return __test_set_smpt_slow(3 * SMPT_WORD_BYTE_RANGE,
+				    4 * SMPT_WORD_BYTE_RANGE);
+}
+
+static int __init test_set_smpt_slow__one_partial_word(void)
+{
+	return __test_set_smpt_slow(3 * SMPT_WORD_BYTE_RANGE + PAGE_SIZE,
+				    4 * SMPT_WORD_BYTE_RANGE - PAGE_SIZE);
+}
+
+static int __init test_set_smpt_slow__multiple_whole_words(void)
+{
+	return __test_set_smpt_slow(13 * SMPT_WORD_BYTE_RANGE,
+				    17 * SMPT_WORD_BYTE_RANGE);
+}
+
+static int __init test_set_smpt_slow__multiple_partial_words(void)
+{
+	return __test_set_smpt_slow((13 * 2 + 1) * SMPT_WORD_BYTE_RANGE / 2,
+				    (17 * 4 + 1) * SMPT_WORD_BYTE_RANGE / 4);
+}
+
+static void __init selftest(void)
+{
+	KSTM_CHECK_ZERO(test_set_fmpt__fmpt_to_fmpt_whole());
+	KSTM_CHECK_ZERO(test_set_fmpt__fmpt_no_change_whole());
+	KSTM_CHECK_ZERO(test_set_fmpt__fmpt_no_change_partial());
+	KSTM_CHECK_ZERO(test_set_fmpt__fmpt_to_smpt());
+	KSTM_CHECK_ZERO(test_set_fmpt__smpt_to_fmpt_whole());
+	KSTM_CHECK_ZERO(test_set_fmpt__smpt_to_fmpt_partial());
+	KSTM_CHECK_ZERO(test_set_fmpt__smpt_to_smpt());
+
+	KSTM_CHECK_ZERO(test_set_smpt__within_one_word());
+	KSTM_CHECK_ZERO(test_set_smpt__no_whole_word());
+	KSTM_CHECK_ZERO(test_set_smpt__no_prologue_or_epilogue());
+	KSTM_CHECK_ZERO(test_set_smpt__prologue());
+	KSTM_CHECK_ZERO(test_set_smpt__epilogue());
+	KSTM_CHECK_ZERO(test_set_smpt__prologue_and_epilogue());
+
+	KSTM_CHECK_ZERO(test_set_smpt_slow__empty_word_align());
+	KSTM_CHECK_ZERO(test_set_smpt_slow__empty_page_align());
+	KSTM_CHECK_ZERO(test_set_smpt_slow__one_whole_word());
+	KSTM_CHECK_ZERO(test_set_smpt_slow__one_partial_word());
+	KSTM_CHECK_ZERO(test_set_smpt_slow__multiple_whole_words());
+	KSTM_CHECK_ZERO(test_set_smpt_slow__multiple_partial_words());
+}
+
+KSTM_MODULE_LOADERS(test_kvm_s2mpu);
+MODULE_AUTHOR("David Brazdil <dbrazdil@google.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 3d14ef77755e5..8470601b89ae8 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -73,6 +73,7 @@ TEST_GEN_PROGS_aarch64 += dirty_log_test
 TEST_GEN_PROGS_aarch64 += kvm_create_max_vcpus
 TEST_GEN_PROGS_aarch64 += set_memory_region_test
 TEST_GEN_PROGS_aarch64 += steal_time
+TEST_PROGS_aarch64 += aarch64/s2mpu.sh
 
 TEST_GEN_PROGS_s390x = s390x/memop
 TEST_GEN_PROGS_s390x += s390x/resets
@@ -83,6 +84,7 @@ TEST_GEN_PROGS_s390x += kvm_create_max_vcpus
 TEST_GEN_PROGS_s390x += set_memory_region_test
 
 TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(UNAME_M))
+TEST_PROGS += $(TEST_PROGS_$(UNAME_M))
 LIBKVM += $(LIBKVM_$(UNAME_M))
 
 INSTALL_HDR_PATH = $(top_srcdir)/usr
diff --git a/tools/testing/selftests/kvm/aarch64/s2mpu.sh b/tools/testing/selftests/kvm/aarch64/s2mpu.sh
new file mode 100755
index 0000000000000..e822965e7ed96
--- /dev/null
+++ b/tools/testing/selftests/kvm/aarch64/s2mpu.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Tests the printf infrastructure using test_printf kernel module.
+$(dirname $0)/../kselftest/module.sh "s2mpu" test_kvm_s2mpu
-- 
GitLab


From 533c59945d4c6562e3646afde92ecf6b648521a9 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 13 Oct 2021 16:17:09 +0100
Subject: [PATCH 0799/4878] ANDROID: KVM: arm64: Unmap S2MPU MMIO regions in
 MPT

Host stage-2 is used for bookkeeping of ownership of physical pages, but
only for memory and not MMIO. Page tables covering device memory are
created on demand. That is in contrast to the S2MPU MPTs, which are
never discarded and cover the entire physical address space.

The S2MPU MPT should therefore unmap MMIO regions which the host should
not have access to. Currently those are only the S2MPU MMIO registers
themselves.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I85af31d5337459c4877eb90b1c5a2d94f94ab890
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 7a735cdca80bc..bbe4490b71732 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -14,6 +14,7 @@
 #include <linux/arm-smccc.h>
 
 #include <nvhe/memory.h>
+#include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
 #include <nvhe/spinlock.h>
 #include <nvhe/trap_handler.h>
@@ -359,6 +360,11 @@ static int s2mpu_init(void)
 	 */
 	for_each_powered_s2mpu(dev)
 		initialize_with_mpt(dev, &kvm_hyp_host_mpt);
+
+	/* Prevent DMA to the S2MPU MMIO regions. */
+	for_each_s2mpu(dev)
+		s2mpu_host_stage2_set_owner(dev->pa, S2MPU_MMIO_SIZE, pkvm_hyp_id);
+
 	return 0;
 }
 
-- 
GitLab


From 03d4db533916ef9801e6c5c069cd5ec5f699933c Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 13 Oct 2021 16:17:21 +0100
Subject: [PATCH 0800/4878] ANDROID: KVM: arm64: Implement MMIO handler in
 S2MPU driver

The host should not have access to the vast majority of S2MPU MMIO
registers. Currently it only needs access to fault information, in
the future maybe also performance registers.

Implement an MMIO trap handler for the S2MPU, allowing read-only
access to FAULT_* registers, and a write-only access to
INTERRUPT_CLEAR.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I14d37bb0d5ad591ac3ac372701afd5597e0b3435
---
 arch/arm64/include/asm/kvm_s2mpu.h    |  3 ++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 66 +++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 6904ae20a99fa..fa10bc754f03b 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -54,6 +54,9 @@
 /* For use with hi_lo_readq_relaxed(). */
 #define REG_NS_FAULT_PA_HIGH_LOW(vid)		REG_NS_FAULT_PA_LOW(vid)
 
+/* Mask used for extracting VID from FAULT_* register offset. */
+#define REG_NS_FAULT_VID_MASK			GENMASK(7, 5)
+
 #define VERSION_MAJOR_ARCH_VER_MASK		GENMASK(31, 28)
 #define VERSION_MINOR_ARCH_VER_MASK		GENMASK(27, 24)
 #define VERSION_REV_ARCH_VER_MASK		GENMASK(23, 16)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index bbe4490b71732..f83546b7d586a 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -324,6 +324,71 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 	return true;  /* SMC handled */
 }
 
+static struct s2mpu *find_s2mpu_by_addr(phys_addr_t addr)
+{
+	struct s2mpu *dev;
+
+	for_each_s2mpu(dev) {
+		if (dev->pa <= addr && addr < (dev->pa + S2MPU_MMIO_SIZE))
+			return dev;
+	}
+	return NULL;
+}
+
+static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
+{
+	const u32 no_access  = 0;
+	const u32 read_write = (u32)(-1);
+	const u32 read_only  = is_write ? no_access  : read_write;
+	const u32 write_only = is_write ? read_write : no_access;
+	u32 masked_off;
+
+	/* IRQ handler can clear interrupts. */
+	if (off == REG_NS_INTERRUPT_CLEAR)
+		return write_only & ALL_VIDS_BITMAP;
+
+	/* IRQ handler can read bitmap of pending interrupts. */
+	if (off == REG_NS_FAULT_STATUS)
+		return read_only & ALL_VIDS_BITMAP;
+
+	/* IRQ handler can read fault information. */
+	masked_off = off & ~REG_NS_FAULT_VID_MASK;
+	if ((masked_off == REG_NS_FAULT_PA_LOW(0)) ||
+	    (masked_off == REG_NS_FAULT_PA_HIGH(0)) ||
+	    (masked_off == REG_NS_FAULT_INFO(0)))
+		return read_only;
+
+	return no_access;
+}
+
+static bool s2mpu_host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt,
+					 phys_addr_t fault_pa, unsigned int len,
+					 bool is_write, int rd)
+{
+	struct s2mpu *dev;
+	size_t off;
+	u32 mask;
+
+	/* Only handle MMIO access with u32 size and alignment. */
+	if ((len != sizeof(u32)) || (fault_pa & (sizeof(u32) - 1)))
+		return false;
+
+	dev = find_s2mpu_by_addr(fault_pa);
+	if (!dev || !is_powered_on(dev))
+		return false;
+
+	off = fault_pa - dev->pa;
+	mask = host_mmio_reg_access_mask(off, is_write);
+	if (!mask)
+		return false;
+
+	if (is_write)
+		writel_relaxed(cpu_reg(host_ctxt, rd) & mask, dev->va + off);
+	else
+		cpu_reg(host_ctxt, rd) = readl_relaxed(dev->va + off) & mask;
+	return true;
+}
+
 static int s2mpu_init(void)
 {
 	struct s2mpu *dev;
@@ -371,5 +436,6 @@ static int s2mpu_init(void)
 const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
 	.init = s2mpu_init,
 	.host_smc_handler = s2mpu_host_smc_handler,
+	.host_mmio_dabt_handler = s2mpu_host_mmio_dabt_handler,
 	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
 };
-- 
GitLab


From 8f234061533dc798ac96fdb6b49b6b66584a8d0f Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 13 Oct 2021 11:13:00 +0100
Subject: [PATCH 0801/4878] ANDROID: KVM: arm64: Unmap S2MPU MMIO registers
 from host stage-2

The S2MPU driver needs to protect its MMIO registers from the host.
Implement the host_stage2_adjust_mmio_range callback and restrict
the address range that is about to be mapped in to avoid the known
S2MPU MMIO regions.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Id30eb44c23a153fc3aaabebff8b33d1c7192e95e
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 29 +++++++++++++++++++++++++++
 arch/arm64/kvm/iommu/s2mpu.c          | 11 ++++++++++
 2 files changed, 40 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index f83546b7d586a..a1286e1b3bc20 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -271,6 +271,34 @@ static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size, u8 owner_
 	hyp_spin_unlock(&s2mpu_lock);
 }
 
+static int s2mpu_host_stage2_adjust_mmio_range(phys_addr_t addr, phys_addr_t *start,
+					       phys_addr_t *end)
+{
+	struct s2mpu *dev;
+	phys_addr_t dev_start, dev_end, int_start, int_end;
+
+	/* Find the PA interval in the non-empty, sorted list of S2MPUs. */
+	int_start = 0;
+	for_each_s2mpu(dev) {
+		dev_start = dev->pa;
+		dev_end = dev_start + S2MPU_MMIO_SIZE;
+		int_end = dev_start;
+
+		if (dev_start <= addr && addr < dev_end)
+			return -EPERM;
+
+		if (int_start <= addr && addr < int_end)
+			break;
+
+		int_start = dev_end;
+		int_end = PA_MAX;
+	}
+
+	*start = max(*start, int_start);
+	*end = min(*end, int_end);
+	return 0;
+}
+
 static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, fn, host_ctxt, 0);
@@ -438,4 +466,5 @@ const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
 	.host_smc_handler = s2mpu_host_smc_handler,
 	.host_mmio_dabt_handler = s2mpu_host_mmio_dabt_handler,
 	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
+	.host_stage2_adjust_mmio_range = s2mpu_host_stage2_adjust_mmio_range,
 };
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index ce4b32453b7ce..12b387b351bce 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -8,6 +8,7 @@
 #include <linux/kvm_host.h>
 #include <linux/list.h>
 #include <linux/of_platform.h>
+#include <linux/sort.h>
 
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_s2mpu.h>
@@ -279,6 +280,13 @@ static void free_s2mpu_array(struct s2mpu *array)
 	free_pages((unsigned long)array, order);
 }
 
+static int cmp_s2mpu(const void *p1, const void *p2)
+{
+	const struct s2mpu *a = p1, *b = p2;
+
+	return (a->pa > b->pa) - (a->pa < b->pa);
+}
+
 static int create_s2mpu_array(struct s2mpu **array)
 {
 	struct s2mpu_list_entry *entry, *tmp;
@@ -297,6 +305,9 @@ static int create_s2mpu_array(struct s2mpu **array)
 	}
 	WARN_ON(i != kvm_hyp_nr_s2mpus);
 
+	/* Searching through the list assumes that it is sorted. */
+	sort(*array, kvm_hyp_nr_s2mpus, sizeof(struct s2mpu), cmp_s2mpu, NULL);
+
 	kvm_hyp_s2mpus = kern_hyp_va(*array);
 	return 0;
 }
-- 
GitLab


From 6d4485877385f32fdf45e24bde8e5b19cfac2691 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 28 Oct 2021 14:58:23 +0100
Subject: [PATCH 0802/4878] ANDROID: Enable KVM_S2MPU in gki_defconfig

Enable the KVM S2MPU driver in GKI.

Test: builds, boots
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I24285cc85af63b090c9bd0191b3841e44c2d8a0c
---
 arch/arm64/configs/gki_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index db6f17205b0fd..08ab8d68b6404 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -87,6 +87,7 @@ CONFIG_ARM_SCPI_PROTOCOL=y
 # CONFIG_EFI_ARMSTUB_DTB_LOADER is not set
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM=y
+CONFIG_KVM_S2MPU=y
 CONFIG_CRYPTO_SHA2_ARM64_CE=y
 CONFIG_CRYPTO_SHA512_ARM64_CE=y
 CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
-- 
GitLab


From 7163abc9e4ca9dd1346e014cda054c03e5e9e08e Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Tue, 2 Nov 2021 12:03:56 -0700
Subject: [PATCH 0803/4878] ANDROID: GKI: Enable HIST_TRIGGERS (x86)

Histogram triggers (already enabled for arm64) will be used
to throttle frequent trace events on Android.

Bug: 146055070
Bug: 145972256
Change-Id: Ia186a79867866e5b4ed37f2cc14be194505f3fba
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
---
 arch/x86/configs/gki_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 466d53e818b52..d7d3481c96119 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -622,4 +622,5 @@ CONFIG_WQ_WATCHDOG=y
 CONFIG_SCHEDSTATS=y
 CONFIG_BUG_ON_DATA_CORRUPTION=y
 CONFIG_TRACEFS_DISABLE_AUTOMOUNT=y
+CONFIG_HIST_TRIGGERS=y
 CONFIG_UNWINDER_FRAME_POINTER=y
-- 
GitLab


From 1d30c0a162e247b1eaac659c0260b9f2f220a618 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Wed, 13 Oct 2021 21:52:17 -0700
Subject: [PATCH 0804/4878] UPSTREAM: tracing/cfi: Fix cmp_entries_* functions
 signature mismatch

If CONFIG_CFI_CLANG=y, attempting to read an event histogram will cause
the kernel to panic due to failed CFI check.

    1. echo 'hist:keys=common_pid' >> events/sched/sched_switch/trigger
    2. cat events/sched/sched_switch/hist
    3. kernel panics on attempting to read hist

This happens because the sort() function expects a generic
int (*)(const void *, const void *) pointer for the compare function.
To prevent this CFI failure, change tracing map cmp_entries_* function
signatures to match this.

Also, fix the build error reported by the kernel test robot [1].

[1] https://lore.kernel.org/r/202110141140.zzi4dRh4-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211014045217.3265162-1-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 7ce1bb83a14019f8c396d57ec704d19478747716)

Bug: 146055070
Bug: 145972256
Bug: 200805622
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I9e0dc6544f6464868fa1c5dbf90666ecdab01ece
---
 kernel/trace/tracing_map.c | 40 ++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c
index 4b50fc0cb12c7..d63e51dde0d24 100644
--- a/kernel/trace/tracing_map.c
+++ b/kernel/trace/tracing_map.c
@@ -834,29 +834,35 @@ int tracing_map_init(struct tracing_map *map)
 	return err;
 }
 
-static int cmp_entries_dup(const struct tracing_map_sort_entry **a,
-			   const struct tracing_map_sort_entry **b)
+static int cmp_entries_dup(const void *A, const void *B)
 {
+	const struct tracing_map_sort_entry *a, *b;
 	int ret = 0;
 
-	if (memcmp((*a)->key, (*b)->key, (*a)->elt->map->key_size))
+	a = *(const struct tracing_map_sort_entry **)A;
+	b = *(const struct tracing_map_sort_entry **)B;
+
+	if (memcmp(a->key, b->key, a->elt->map->key_size))
 		ret = 1;
 
 	return ret;
 }
 
-static int cmp_entries_sum(const struct tracing_map_sort_entry **a,
-			   const struct tracing_map_sort_entry **b)
+static int cmp_entries_sum(const void *A, const void *B)
 {
 	const struct tracing_map_elt *elt_a, *elt_b;
+	const struct tracing_map_sort_entry *a, *b;
 	struct tracing_map_sort_key *sort_key;
 	struct tracing_map_field *field;
 	tracing_map_cmp_fn_t cmp_fn;
 	void *val_a, *val_b;
 	int ret = 0;
 
-	elt_a = (*a)->elt;
-	elt_b = (*b)->elt;
+	a = *(const struct tracing_map_sort_entry **)A;
+	b = *(const struct tracing_map_sort_entry **)B;
+
+	elt_a = a->elt;
+	elt_b = b->elt;
 
 	sort_key = &elt_a->map->sort_key;
 
@@ -873,18 +879,21 @@ static int cmp_entries_sum(const struct tracing_map_sort_entry **a,
 	return ret;
 }
 
-static int cmp_entries_key(const struct tracing_map_sort_entry **a,
-			   const struct tracing_map_sort_entry **b)
+static int cmp_entries_key(const void *A, const void *B)
 {
 	const struct tracing_map_elt *elt_a, *elt_b;
+	const struct tracing_map_sort_entry *a, *b;
 	struct tracing_map_sort_key *sort_key;
 	struct tracing_map_field *field;
 	tracing_map_cmp_fn_t cmp_fn;
 	void *val_a, *val_b;
 	int ret = 0;
 
-	elt_a = (*a)->elt;
-	elt_b = (*b)->elt;
+	a = *(const struct tracing_map_sort_entry **)A;
+	b = *(const struct tracing_map_sort_entry **)B;
+
+	elt_a = a->elt;
+	elt_b = b->elt;
 
 	sort_key = &elt_a->map->sort_key;
 
@@ -989,10 +998,8 @@ static void sort_secondary(struct tracing_map *map,
 			   struct tracing_map_sort_key *primary_key,
 			   struct tracing_map_sort_key *secondary_key)
 {
-	int (*primary_fn)(const struct tracing_map_sort_entry **,
-			  const struct tracing_map_sort_entry **);
-	int (*secondary_fn)(const struct tracing_map_sort_entry **,
-			    const struct tracing_map_sort_entry **);
+	int (*primary_fn)(const void *, const void *);
+	int (*secondary_fn)(const void *, const void *);
 	unsigned i, start = 0, n_sub = 1;
 
 	if (is_key(map, primary_key->field_idx))
@@ -1061,8 +1068,7 @@ int tracing_map_sort_entries(struct tracing_map *map,
 			     unsigned int n_sort_keys,
 			     struct tracing_map_sort_entry ***sort_entries)
 {
-	int (*cmp_entries_fn)(const struct tracing_map_sort_entry **,
-			      const struct tracing_map_sort_entry **);
+	int (*cmp_entries_fn)(const void *, const void *);
 	struct tracing_map_sort_entry *sort_entry, **entries;
 	int i, n_entries, ret;
 
-- 
GitLab


From 6ffd9286539ef02acda064912c3b85205651a247 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:33 -0700
Subject: [PATCH 0805/4878] BACKPORT: tracing: Add support for creating hist
 trigger variables from literal

Currently hist trigger expressions don't support the use of numeric
literals:
	e.g. echo 'hist:keys=common_pid:x=$y-1234'
		--> is not valid expression syntax

Having the ability to use numeric constants in hist triggers supports
a wider range of expressions for creating variables.

Add support for creating trace event histogram variables from numeric
literals.

	e.g. echo 'hist:keys=common_pid:x=1234,y=size-1024' >> event/trigger

A negative numeric constant is created, using unary minus operator
(parentheses are required).

	e.g. echo 'hist:keys=common_pid:z=-(2)' >> event/trigger

Constants can be used with division/multiplication (added in the
next patch in this series) to implement granularity filters for frequent
trace events. For instance we can limit emitting the rss_stat
trace event to when there is a 512KB cross over in the rss size:

  # Create a synthetic event to monitor instead of the high frequency
  # rss_stat event
  echo 'rss_stat_throttled unsigned int mm_id; unsigned int curr;
	int member; long size' >> tracing/synthetic_events

  # Create a hist trigger that emits the synthetic rss_stat_throttled
  # event only when the rss size crosses a 512KB boundary.
  echo 'hist:keys=keys=mm_id,member:bucket=size/0x80000:onchange($bucket)
      .rss_stat_throttled(mm_id,curr,member,size)'
        >> events/kmem/rss_stat/trigger

A use case for using constants with addition/subtraction is not yet
known, but for completeness the use of constants are supported for all
operators.

Link: https://lkml.kernel.org/r/20211025200852.3002369-2-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 52cfb373536a7fb744b0ec4b748518e5dc874fb7)

[ Kalesh Singh: Resolve minor conflicts in kernel/trace/trace_events_hist.c ]
Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I800274b26a6319a8c4af8e9e732235a5cc5bcacf
---
 kernel/trace/trace_events_hist.c | 71 +++++++++++++++++++++++++++++++-
 1 file changed, 70 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 1b7f90e00eb05..600c426c0467c 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -66,7 +66,8 @@
 	C(EMPTY_SORT_FIELD,	"Empty sort field"),			\
 	C(TOO_MANY_SORT_FIELDS,	"Too many sort fields (Max = 2)"),	\
 	C(INVALID_SORT_FIELD,	"Sort field must be a key or a val"),	\
-	C(INVALID_STR_OPERAND,	"String type can not be an operand in expression"),
+	C(INVALID_STR_OPERAND,	"String type can not be an operand in expression"), \
+	C(EXPECT_NUMBER,	"Expecting numeric literal"),
 
 #undef C
 #define C(a, b)		HIST_ERR_##a
@@ -88,6 +89,7 @@ typedef u64 (*hist_field_fn_t) (struct hist_field *field,
 #define HIST_FIELD_OPERANDS_MAX	2
 #define HIST_FIELDS_MAX		(TRACING_MAP_FIELDS_MAX + TRACING_MAP_VARS_MAX)
 #define HIST_ACTIONS_MAX	8
+#define HIST_CONST_DIGITS_MAX	21
 
 enum field_op_id {
 	FIELD_OP_NONE,
@@ -150,6 +152,9 @@ struct hist_field {
 	bool                            read_once;
 
 	unsigned int			var_str_idx;
+
+	/* Numeric literals are represented as u64 */
+	u64				constant;
 };
 
 static u64 hist_field_none(struct hist_field *field,
@@ -160,6 +165,15 @@ static u64 hist_field_none(struct hist_field *field,
 	return 0;
 }
 
+static u64 hist_field_const(struct hist_field *field,
+			   struct tracing_map_elt *elt,
+			   struct ring_buffer_event *rbe,
+			   void *event)
+{
+	return field->constant;
+}
+
+
 static u64 hist_field_counter(struct hist_field *field,
 			      struct tracing_map_elt *elt,
 			      struct ring_buffer_event *rbe,
@@ -307,6 +321,7 @@ enum hist_field_flags {
 	HIST_FIELD_FL_VAR_REF		= 1 << 14,
 	HIST_FIELD_FL_CPU		= 1 << 15,
 	HIST_FIELD_FL_ALIAS		= 1 << 16,
+	HIST_FIELD_FL_CONST		= 1 << 17,
 };
 
 struct var_defs {
@@ -1464,6 +1479,12 @@ static void expr_field_str(struct hist_field *field, char *expr)
 {
 	if (field->flags & HIST_FIELD_FL_VAR_REF)
 		strcat(expr, "$");
+	else if (field->flags & HIST_FIELD_FL_CONST) {
+		char str[HIST_CONST_DIGITS_MAX];
+
+		snprintf(str, HIST_CONST_DIGITS_MAX, "%llu", field->constant);
+		strcat(expr, str);
+	}
 
 	strcat(expr, hist_field_name(field, 0));
 
@@ -1637,6 +1658,15 @@ static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data,
 		goto out;
 	}
 
+	if (flags & HIST_FIELD_FL_CONST) {
+		hist_field->fn = hist_field_const;
+		hist_field->size = sizeof(u64);
+		hist_field->type = kstrdup("u64", GFP_KERNEL);
+		if (!hist_field->type)
+			goto free;
+		goto out;
+	}
+
 	if (flags & HIST_FIELD_FL_STACKTRACE) {
 		hist_field->fn = hist_field_none;
 		goto out;
@@ -2026,6 +2056,29 @@ static struct hist_field *create_alias(struct hist_trigger_data *hist_data,
 	return alias;
 }
 
+static struct hist_field *parse_const(struct hist_trigger_data *hist_data,
+				      char *str, char *var_name,
+				      unsigned long *flags)
+{
+	struct trace_array *tr = hist_data->event_file->tr;
+	struct hist_field *field = NULL;
+	u64 constant;
+
+	if (kstrtoull(str, 0, &constant)) {
+		hist_err(tr, HIST_ERR_EXPECT_NUMBER, errpos(str));
+		return NULL;
+	}
+
+	*flags |= HIST_FIELD_FL_CONST;
+	field = create_hist_field(hist_data, NULL, *flags, var_name);
+	if (!field)
+		return NULL;
+
+	field->constant = constant;
+
+	return field;
+}
+
 static struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
 				     struct trace_event_file *file, char *str,
 				     unsigned long *flags, char *var_name)
@@ -2035,6 +2088,15 @@ static struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
 	struct hist_field *hist_field = NULL;
 	int ret = 0;
 
+	if (isdigit(str[0])) {
+		hist_field = parse_const(hist_data, str, var_name, flags);
+		if (!hist_field) {
+			ret = -EINVAL;
+			goto out;
+		}
+		return hist_field;
+	}
+
 	s = strchr(str, '.');
 	if (s) {
 		s = strchr(++s, '.');
@@ -4829,6 +4891,8 @@ static void hist_field_debug_show_flags(struct seq_file *m,
 
 	if (flags & HIST_FIELD_FL_ALIAS)
 		seq_puts(m, "        HIST_FIELD_FL_ALIAS\n");
+	else if (flags & HIST_FIELD_FL_CONST)
+		seq_puts(m, "        HIST_FIELD_FL_CONST\n");
 }
 
 static int hist_field_debug_show(struct seq_file *m,
@@ -4850,6 +4914,9 @@ static int hist_field_debug_show(struct seq_file *m,
 			   field->var.idx);
 	}
 
+	if (field->flags & HIST_FIELD_FL_CONST)
+		seq_printf(m, "      constant: %llu\n", field->constant);
+
 	if (field->flags & HIST_FIELD_FL_ALIAS)
 		seq_printf(m, "      var_ref_idx (into hist_data->var_refs[]): %u\n",
 			   field->var_ref_idx);
@@ -5092,6 +5159,8 @@ static void hist_field_print(struct seq_file *m, struct hist_field *hist_field)
 
 	if (hist_field->flags & HIST_FIELD_FL_CPU)
 		seq_puts(m, "common_cpu");
+	else if (hist_field->flags & HIST_FIELD_FL_CONST)
+		seq_printf(m, "%llu", hist_field->constant);
 	else if (field_name) {
 		if (hist_field->flags & HIST_FIELD_FL_VAR_REF ||
 		    hist_field->flags & HIST_FIELD_FL_ALIAS)
-- 
GitLab


From b421a7c2b7d1ed38a959d506c4cb0eedc01a4e1b Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:34 -0700
Subject: [PATCH 0806/4878] BACKPORT: tracing: Add division and multiplication
 support for hist triggers

Adds basic support for division and multiplication operations for
hist trigger variable expressions.

For simplicity this patch only supports, division and multiplication
for a single operation expression (e.g. x=$a/$b), as currently
expressions are always evaluated right to left. This can lead to some
incorrect results:

	e.g. echo 'hist:keys=common_pid:x=8-4-2' >> event/trigger

	     8-4-2 should evaluate to 2 i.e. (8-4)-2
	     but currently x evaluate to  6 i.e. 8-(4-2)

Multiplication and division in sub-expressions will work correctly, once
correct operator precedence support is added (See next patch in this
series).

For the undefined case of division by 0, the histogram expression
evaluates to (u64)(-1). Since this cannot be detected when the
expression is created, it is the responsibility of the user to be
aware and account for this possibility.

Examples:
	echo 'hist:keys=common_pid:a=8,b=4,x=$a/$b' \
                   >> event/trigger

	echo 'hist:keys=common_pid:y=5*$b' \
                   >> event/trigger

Link: https://lkml.kernel.org/r/20211025200852.3002369-3-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit bcef044150320217e2a00c65050114e509c222b8)

[ Kalesh Singh: Resolve minor conflicts in kernel/trace/trace_events_hist.c ]
Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I3b57e8bf353992e1ef052174bec16754d14f2127
---
 kernel/trace/trace_events_hist.c | 70 +++++++++++++++++++++++++++++++-
 1 file changed, 69 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 600c426c0467c..3051de6869a68 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -96,6 +96,8 @@ enum field_op_id {
 	FIELD_OP_PLUS,
 	FIELD_OP_MINUS,
 	FIELD_OP_UNARY_MINUS,
+	FIELD_OP_DIV,
+	FIELD_OP_MULT,
 };
 
 /*
@@ -254,6 +256,38 @@ static u64 hist_field_minus(struct hist_field *hist_field,
 	return val1 - val2;
 }
 
+static u64 hist_field_div(struct hist_field *hist_field,
+			   struct tracing_map_elt *elt,
+			   struct ring_buffer_event *rbe,
+			   void *event)
+{
+	struct hist_field *operand1 = hist_field->operands[0];
+	struct hist_field *operand2 = hist_field->operands[1];
+
+	u64 val1 = operand1->fn(operand1, elt, rbe, event);
+	u64 val2 = operand2->fn(operand2, elt, rbe, event);
+
+	/* Return -1 for the undefined case */
+	if (!val2)
+		return -1;
+
+	return div64_u64(val1, val2);
+}
+
+static u64 hist_field_mult(struct hist_field *hist_field,
+			   struct tracing_map_elt *elt,
+			   struct ring_buffer_event *rbe,
+			   void *event)
+{
+	struct hist_field *operand1 = hist_field->operands[0];
+	struct hist_field *operand2 = hist_field->operands[1];
+
+	u64 val1 = operand1->fn(operand1, elt, rbe, event);
+	u64 val2 = operand2->fn(operand2, elt, rbe, event);
+
+	return val1 * val2;
+}
+
 static u64 hist_field_unary_minus(struct hist_field *hist_field,
 				  struct tracing_map_elt *elt,
 				  struct ring_buffer_event *rbe,
@@ -1540,6 +1574,12 @@ static char *expr_str(struct hist_field *field, unsigned int level)
 	case FIELD_OP_PLUS:
 		strcat(expr, "+");
 		break;
+	case FIELD_OP_DIV:
+		strcat(expr, "/");
+		break;
+	case FIELD_OP_MULT:
+		strcat(expr, "*");
+		break;
 	default:
 		kfree(expr);
 		return NULL;
@@ -1555,7 +1595,7 @@ static int contains_operator(char *str)
 	enum field_op_id field_op = FIELD_OP_NONE;
 	char *op;
 
-	op = strpbrk(str, "+-");
+	op = strpbrk(str, "+-/*");
 	if (!op)
 		return FIELD_OP_NONE;
 
@@ -1576,6 +1616,12 @@ static int contains_operator(char *str)
 	case '+':
 		field_op = FIELD_OP_PLUS;
 		break;
+	case '/':
+		field_op = FIELD_OP_DIV;
+		break;
+	case '*':
+		field_op = FIELD_OP_MULT;
+		break;
 	default:
 		break;
 	}
@@ -2295,10 +2341,26 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	case FIELD_OP_PLUS:
 		sep = "+";
 		break;
+	case FIELD_OP_DIV:
+		sep = "/";
+		break;
+	case FIELD_OP_MULT:
+		sep = "*";
+		break;
 	default:
 		goto free;
 	}
 
+	/*
+	 * Multiplication and division are only supported in single operator
+	 * expressions, since the expression is always evaluated from right
+	 * to left.
+	 */
+	if ((field_op == FIELD_OP_DIV || field_op == FIELD_OP_MULT) && level > 0) {
+		hist_err(file->tr, HIST_ERR_TOO_MANY_SUBEXPR, errpos(str));
+		return ERR_PTR(-EINVAL);
+	}
+
 	operand1_str = strsep(&str, sep);
 	if (!operand1_str || !str)
 		goto free;
@@ -2370,6 +2432,12 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	case FIELD_OP_PLUS:
 		expr->fn = hist_field_plus;
 		break;
+	case FIELD_OP_DIV:
+		expr->fn = hist_field_div;
+		break;
+	case FIELD_OP_MULT:
+		expr->fn = hist_field_mult;
+		break;
 	default:
 		ret = -EINVAL;
 		goto free;
-- 
GitLab


From 3c296c22ea46ac6d958e6642bf7b3767b34b7646 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:35 -0700
Subject: [PATCH 0807/4878] UPSTREAM: tracing: Fix operator precedence for hist
 triggers expression

The current histogram expression evaluation logic evaluates the
expression from right to left. This can lead to incorrect results
if the operations are not associative (as is the case for subtraction
and, the now added, division operators).
	e.g. 16-8-4-2 should be 2 not 10 --> 16-8-4-2 = ((16-8)-4)-2
	     64/8/4/2 should be 1 not 16 --> 64/8/4/2 = ((64/8)/4)/2

Division and multiplication are currently limited to single operation
expression due to operator precedence support not yet implemented.

Rework the expression parsing to support the correct evaluation of
expressions containing operators of different precedences; and fix
the associativity error by evaluating expressions with operators of
the same precedence from left to right.

Examples:
        (1) echo 'hist:keys=common_pid:a=8,b=4,c=2,d=1,w=$a-$b-$c-$d' \
                  >> event/trigger
        (2) echo 'hist:keys=common_pid:x=$a/$b/3/2' >> event/trigger
        (3) echo 'hist:keys=common_pid:y=$a+10/$c*1024' >> event/trigger
        (4) echo 'hist:keys=common_pid:z=$a/$b+$c*$d' >> event/trigger

Link: https://lkml.kernel.org/r/20211025200852.3002369-4-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 9710b2f341a0d96f35b911580639853cfda4677d)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I9f5fa30eb9b9473e6ddfe7de8d6d75a6840a6f9e
---
 kernel/trace/trace_events_hist.c | 210 ++++++++++++++++++++-----------
 1 file changed, 140 insertions(+), 70 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 3051de6869a68..b94921ef2f383 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -67,7 +67,9 @@
 	C(TOO_MANY_SORT_FIELDS,	"Too many sort fields (Max = 2)"),	\
 	C(INVALID_SORT_FIELD,	"Sort field must be a key or a val"),	\
 	C(INVALID_STR_OPERAND,	"String type can not be an operand in expression"), \
-	C(EXPECT_NUMBER,	"Expecting numeric literal"),
+	C(EXPECT_NUMBER,	"Expecting numeric literal"),		\
+	C(UNARY_MINUS_SUBEXPR,	"Unary minus not supported in sub-expressions"), \
+	C(SYM_OFFSET_SUBEXPR,	".sym-offset not supported in sub-expressions"),
 
 #undef C
 #define C(a, b)		HIST_ERR_##a
@@ -1590,40 +1592,96 @@ static char *expr_str(struct hist_field *field, unsigned int level)
 	return expr;
 }
 
-static int contains_operator(char *str)
+/*
+ * If field_op != FIELD_OP_NONE, *sep points to the root operator
+ * of the expression tree to be evaluated.
+ */
+static int contains_operator(char *str, char **sep)
 {
 	enum field_op_id field_op = FIELD_OP_NONE;
-	char *op;
+	char *minus_op, *plus_op, *div_op, *mult_op;
+
+
+	/*
+	 * Report the last occurrence of the operators first, so that the
+	 * expression is evaluated left to right. This is important since
+	 * subtraction and division are not associative.
+	 *
+	 *	e.g
+	 *		64/8/4/2 is 1, i.e 64/8/4/2 = ((64/8)/4)/2
+	 *		14-7-5-2 is 0, i.e 14-7-5-2 = ((14-7)-5)-2
+	 */
 
-	op = strpbrk(str, "+-/*");
-	if (!op)
-		return FIELD_OP_NONE;
+	/*
+	 * First, find lower precedence addition and subtraction
+	 * since the expression will be evaluated recursively.
+	 */
+	minus_op = strrchr(str, '-');
+	if (minus_op) {
+		/* Unfortunately, the modifier ".sym-offset" can confuse things. */
+		if (minus_op - str >= 4 && !strncmp(minus_op - 4, ".sym-offset", 11))
+			goto out;
 
-	switch (*op) {
-	case '-':
 		/*
-		 * Unfortunately, the modifier ".sym-offset"
-		 * can confuse things.
+		 * Unary minus is not supported in sub-expressions. If
+		 * present, it is always the next root operator.
 		 */
-		if (op - str >= 4 && !strncmp(op - 4, ".sym-offset", 11))
-			return FIELD_OP_NONE;
-
-		if (*str == '-')
+		if (minus_op == str) {
 			field_op = FIELD_OP_UNARY_MINUS;
-		else
-			field_op = FIELD_OP_MINUS;
-		break;
-	case '+':
-		field_op = FIELD_OP_PLUS;
-		break;
-	case '/':
+			goto out;
+		}
+
+		field_op = FIELD_OP_MINUS;
+	}
+
+	plus_op = strrchr(str, '+');
+	if (plus_op || minus_op) {
+		/*
+		 * For operators of the same precedence use to rightmost as the
+		 * root, so that the expression is evaluated left to right.
+		 */
+		if (plus_op > minus_op)
+			field_op = FIELD_OP_PLUS;
+		goto out;
+	}
+
+	/*
+	 * Multiplication and division have higher precedence than addition and
+	 * subtraction.
+	 */
+	div_op = strrchr(str, '/');
+	if (div_op)
 		field_op = FIELD_OP_DIV;
-		break;
-	case '*':
+
+	mult_op = strrchr(str, '*');
+	/*
+	 * For operators of the same precedence use to rightmost as the
+	 * root, so that the expression is evaluated left to right.
+	 */
+	if (mult_op > div_op)
 		field_op = FIELD_OP_MULT;
-		break;
-	default:
-		break;
+
+out:
+	if (sep) {
+		switch (field_op) {
+		case FIELD_OP_UNARY_MINUS:
+		case FIELD_OP_MINUS:
+			*sep = minus_op;
+			break;
+		case FIELD_OP_PLUS:
+			*sep = plus_op;
+			break;
+		case FIELD_OP_DIV:
+			*sep = div_op;
+			break;
+		case FIELD_OP_MULT:
+			*sep = mult_op;
+			break;
+		case FIELD_OP_NONE:
+		default:
+			*sep = NULL;
+			break;
+		}
 	}
 
 	return field_op;
@@ -1952,7 +2010,7 @@ static char *field_name_from_var(struct hist_trigger_data *hist_data,
 
 		if (strcmp(var_name, name) == 0) {
 			field = hist_data->attrs->var_defs.expr[i];
-			if (contains_operator(field) || is_var_ref(field))
+			if (contains_operator(field, NULL) || is_var_ref(field))
 				continue;
 			return field;
 		}
@@ -2198,21 +2256,24 @@ static struct hist_field *parse_atom(struct hist_trigger_data *hist_data,
 static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 				     struct trace_event_file *file,
 				     char *str, unsigned long flags,
-				     char *var_name, unsigned int level);
+				     char *var_name, unsigned int *n_subexprs);
 
 static struct hist_field *parse_unary(struct hist_trigger_data *hist_data,
 				      struct trace_event_file *file,
 				      char *str, unsigned long flags,
-				      char *var_name, unsigned int level)
+				      char *var_name, unsigned int *n_subexprs)
 {
 	struct hist_field *operand1, *expr = NULL;
 	unsigned long operand_flags;
 	int ret = 0;
 	char *s;
 
+	/* Unary minus operator, increment n_subexprs */
+	++*n_subexprs;
+
 	/* we support only -(xxx) i.e. explicit parens required */
 
-	if (level > 3) {
+	if (*n_subexprs > 3) {
 		hist_err(file->tr, HIST_ERR_TOO_MANY_SUBEXPR, errpos(str));
 		ret = -EINVAL;
 		goto free;
@@ -2229,8 +2290,16 @@ static struct hist_field *parse_unary(struct hist_trigger_data *hist_data,
 	}
 
 	s = strrchr(str, ')');
-	if (s)
+	if (s) {
+		 /* unary minus not supported in sub-expressions */
+		if (*(s+1) != '\0') {
+			hist_err(file->tr, HIST_ERR_UNARY_MINUS_SUBEXPR,
+				 errpos(str));
+			ret = -EINVAL;
+			goto free;
+		}
 		*s = '\0';
+	}
 	else {
 		ret = -EINVAL; /* no closing ')' */
 		goto free;
@@ -2244,7 +2313,7 @@ static struct hist_field *parse_unary(struct hist_trigger_data *hist_data,
 	}
 
 	operand_flags = 0;
-	operand1 = parse_expr(hist_data, file, str, operand_flags, NULL, ++level);
+	operand1 = parse_expr(hist_data, file, str, operand_flags, NULL, n_subexprs);
 	if (IS_ERR(operand1)) {
 		ret = PTR_ERR(operand1);
 		goto free;
@@ -2314,60 +2383,61 @@ static int check_expr_operands(struct trace_array *tr,
 static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 				     struct trace_event_file *file,
 				     char *str, unsigned long flags,
-				     char *var_name, unsigned int level)
+				     char *var_name, unsigned int *n_subexprs)
 {
 	struct hist_field *operand1 = NULL, *operand2 = NULL, *expr = NULL;
 	unsigned long operand_flags;
 	int field_op, ret = -EINVAL;
 	char *sep, *operand1_str;
 
-	if (level > 3) {
+	if (*n_subexprs > 3) {
 		hist_err(file->tr, HIST_ERR_TOO_MANY_SUBEXPR, errpos(str));
 		return ERR_PTR(-EINVAL);
 	}
 
-	field_op = contains_operator(str);
+	/*
+	 * ".sym-offset" in expressions has no effect on their evaluation,
+	 * but can confuse operator parsing.
+	 */
+	if (*n_subexprs == 0) {
+		sep = strstr(str, ".sym-offset");
+		if (sep) {
+			*sep = '\0';
+			if (strpbrk(str, "+-/*") || strpbrk(sep + 11, "+-/*")) {
+				*sep = '.';
+				hist_err(file->tr, HIST_ERR_SYM_OFFSET_SUBEXPR,
+					 errpos(sep));
+				return ERR_PTR(-EINVAL);
+			}
+			*sep = '.';
+		}
+	}
+
+	field_op = contains_operator(str, &sep);
 
 	if (field_op == FIELD_OP_NONE)
 		return parse_atom(hist_data, file, str, &flags, var_name);
 
 	if (field_op == FIELD_OP_UNARY_MINUS)
-		return parse_unary(hist_data, file, str, flags, var_name, ++level);
+		return parse_unary(hist_data, file, str, flags, var_name, n_subexprs);
 
-	switch (field_op) {
-	case FIELD_OP_MINUS:
-		sep = "-";
-		break;
-	case FIELD_OP_PLUS:
-		sep = "+";
-		break;
-	case FIELD_OP_DIV:
-		sep = "/";
-		break;
-	case FIELD_OP_MULT:
-		sep = "*";
-		break;
-	default:
-		goto free;
-	}
+	/* Binary operator found, increment n_subexprs */
+	++*n_subexprs;
 
-	/*
-	 * Multiplication and division are only supported in single operator
-	 * expressions, since the expression is always evaluated from right
-	 * to left.
-	 */
-	if ((field_op == FIELD_OP_DIV || field_op == FIELD_OP_MULT) && level > 0) {
-		hist_err(file->tr, HIST_ERR_TOO_MANY_SUBEXPR, errpos(str));
-		return ERR_PTR(-EINVAL);
-	}
+	/* Split the expression string at the root operator */
+	if (!sep)
+		goto free;
+	*sep = '\0';
+	operand1_str = str;
+	str = sep+1;
 
-	operand1_str = strsep(&str, sep);
 	if (!operand1_str || !str)
 		goto free;
 
 	operand_flags = 0;
-	operand1 = parse_atom(hist_data, file, operand1_str,
-			      &operand_flags, NULL);
+
+	/* LHS of string is an expression e.g. a+b in a+b+c */
+	operand1 = parse_expr(hist_data, file, operand1_str, operand_flags, NULL, n_subexprs);
 	if (IS_ERR(operand1)) {
 		ret = PTR_ERR(operand1);
 		operand1 = NULL;
@@ -2379,9 +2449,9 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 		goto free;
 	}
 
-	/* rest of string could be another expression e.g. b+c in a+b+c */
+	/* RHS of string is another expression e.g. c in a+b+c */
 	operand_flags = 0;
-	operand2 = parse_expr(hist_data, file, str, operand_flags, NULL, ++level);
+	operand2 = parse_expr(hist_data, file, str, operand_flags, NULL, n_subexprs);
 	if (IS_ERR(operand2)) {
 		ret = PTR_ERR(operand2);
 		operand2 = NULL;
@@ -3806,9 +3876,9 @@ static int __create_val_field(struct hist_trigger_data *hist_data,
 			      unsigned long flags)
 {
 	struct hist_field *hist_field;
-	int ret = 0;
+	int ret = 0, n_subexprs = 0;
 
-	hist_field = parse_expr(hist_data, file, field_str, flags, var_name, 0);
+	hist_field = parse_expr(hist_data, file, field_str, flags, var_name, &n_subexprs);
 	if (IS_ERR(hist_field)) {
 		ret = PTR_ERR(hist_field);
 		goto out;
@@ -3911,7 +3981,7 @@ static int create_key_field(struct hist_trigger_data *hist_data,
 	struct hist_field *hist_field = NULL;
 	unsigned long flags = 0;
 	unsigned int key_size;
-	int ret = 0;
+	int ret = 0, n_subexprs = 0;
 
 	if (WARN_ON(key_idx >= HIST_FIELDS_MAX))
 		return -EINVAL;
@@ -3924,7 +3994,7 @@ static int create_key_field(struct hist_trigger_data *hist_data,
 		hist_field = create_hist_field(hist_data, NULL, flags, NULL);
 	} else {
 		hist_field = parse_expr(hist_data, file, field_str, flags,
-					NULL, 0);
+					NULL, &n_subexprs);
 		if (IS_ERR(hist_field)) {
 			ret = PTR_ERR(hist_field);
 			goto out;
-- 
GitLab


From fa428eedd37b8f708349a25bd1bb926e456b5b59 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:36 -0700
Subject: [PATCH 0808/4878] UPSTREAM: tracing/histogram: Simplify handling of
 .sym-offset in expressions

The '-' in .sym-offset can confuse the hist trigger arithmetic
expression parsing. Simplify the handling of this by replacing the
'sym-offset' with 'symXoffset'. This allows us to correctly evaluate
expressions where the user may have inadvertently added a .sym-offset
modifier to one of the operands in an expression, instead of bailing
out. In this case the .sym-offset has no effect on the evaluation of the
expression. The only valid use of the .sym-offset is as a hist key
modifier.

Link: https://lkml.kernel.org/r/20211025200852.3002369-5-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit c5eac6ee8bc5d32e48b3845472b547574061f49f)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I31debbf1ad5d14d2b43a7894ec8703b9a9bf1d74
---
 kernel/trace/trace_events_hist.c | 43 +++++++++++++-------------------
 1 file changed, 17 insertions(+), 26 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index b94921ef2f383..b0bf3eed52bd3 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -68,8 +68,7 @@
 	C(INVALID_SORT_FIELD,	"Sort field must be a key or a val"),	\
 	C(INVALID_STR_OPERAND,	"String type can not be an operand in expression"), \
 	C(EXPECT_NUMBER,	"Expecting numeric literal"),		\
-	C(UNARY_MINUS_SUBEXPR,	"Unary minus not supported in sub-expressions"), \
-	C(SYM_OFFSET_SUBEXPR,	".sym-offset not supported in sub-expressions"),
+	C(UNARY_MINUS_SUBEXPR,	"Unary minus not supported in sub-expressions"),
 
 #undef C
 #define C(a, b)		HIST_ERR_##a
@@ -1618,10 +1617,6 @@ static int contains_operator(char *str, char **sep)
 	 */
 	minus_op = strrchr(str, '-');
 	if (minus_op) {
-		/* Unfortunately, the modifier ".sym-offset" can confuse things. */
-		if (minus_op - str >= 4 && !strncmp(minus_op - 4, ".sym-offset", 11))
-			goto out;
-
 		/*
 		 * Unary minus is not supported in sub-expressions. If
 		 * present, it is always the next root operator.
@@ -2087,7 +2082,11 @@ parse_field(struct hist_trigger_data *hist_data, struct trace_event_file *file,
 			*flags |= HIST_FIELD_FL_HEX;
 		else if (strcmp(modifier, "sym") == 0)
 			*flags |= HIST_FIELD_FL_SYM;
-		else if (strcmp(modifier, "sym-offset") == 0)
+		/*
+		 * 'sym-offset' occurrences in the trigger string are modified
+		 * to 'symXoffset' to simplify arithmetic expression parsing.
+		 */
+		else if (strcmp(modifier, "symXoffset") == 0)
 			*flags |= HIST_FIELD_FL_SYM_OFFSET;
 		else if ((strcmp(modifier, "execname") == 0) &&
 			 (strcmp(field_name, "common_pid") == 0))
@@ -2395,24 +2394,6 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 		return ERR_PTR(-EINVAL);
 	}
 
-	/*
-	 * ".sym-offset" in expressions has no effect on their evaluation,
-	 * but can confuse operator parsing.
-	 */
-	if (*n_subexprs == 0) {
-		sep = strstr(str, ".sym-offset");
-		if (sep) {
-			*sep = '\0';
-			if (strpbrk(str, "+-/*") || strpbrk(sep + 11, "+-/*")) {
-				*sep = '.';
-				hist_err(file->tr, HIST_ERR_SYM_OFFSET_SUBEXPR,
-					 errpos(sep));
-				return ERR_PTR(-EINVAL);
-			}
-			*sep = '.';
-		}
-	}
-
 	field_op = contains_operator(str, &sep);
 
 	if (field_op == FIELD_OP_NONE)
@@ -5878,7 +5859,7 @@ static int event_hist_trigger_func(struct event_command *cmd_ops,
 	struct synth_event *se;
 	const char *se_name;
 	bool remove = false;
-	char *trigger, *p;
+	char *trigger, *p, *start;
 	int ret = 0;
 
 	lockdep_assert_held(&event_mutex);
@@ -5926,6 +5907,16 @@ static int event_hist_trigger_func(struct event_command *cmd_ops,
 		trigger = strstrip(trigger);
 	}
 
+	/*
+	 * To simplify arithmetic expression parsing, replace occurrences of
+	 * '.sym-offset' modifier with '.symXoffset'
+	 */
+	start = strstr(trigger, ".sym-offset");
+	while (start) {
+		*(start + 4) = 'X';
+		start = strstr(start + 11, ".sym-offset");
+	};
+
 	attrs = parse_hist_trigger_attrs(file->tr, trigger);
 	if (IS_ERR(attrs))
 		return PTR_ERR(attrs);
-- 
GitLab


From 1f8f3e1fff314e0e6c8a2cfad644319e3f3804fd Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:37 -0700
Subject: [PATCH 0809/4878] BACKPORT: tracing/histogram: Covert expr to const
 if both operands are constants

If both operands of a hist trigger expression are constants, convert the
expression to a constant. This optimization avoids having to perform the
same calculation multiple times and also saves on memory since the
merged constants are represented by a single struct hist_field instead
or multiple.

Link: https://lkml.kernel.org/r/20211025200852.3002369-6-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit f47716b7a955e40e2591b960d1eccb1fde967a70)

[ Kalesh Singh: Resolve conflicts in kernel/trace/trace_events_hist.c ]
Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Iaa33bfd20808cee2fe62b65ab81b5aa01cb9a8dd
---
 kernel/trace/trace_events_hist.c | 104 ++++++++++++++++++++++---------
 1 file changed, 74 insertions(+), 30 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index b0bf3eed52bd3..e65f7fe76c0fc 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2343,9 +2343,15 @@ static struct hist_field *parse_unary(struct hist_trigger_data *hist_data,
 	return ERR_PTR(ret);
 }
 
+/*
+ * If the operands are var refs, return pointers the
+ * variable(s) referenced in var1 and var2, else NULL.
+ */
 static int check_expr_operands(struct trace_array *tr,
 			       struct hist_field *operand1,
-			       struct hist_field *operand2)
+			       struct hist_field *operand2,
+			       struct hist_field **var1,
+			       struct hist_field **var2)
 {
 	unsigned long operand1_flags = operand1->flags;
 	unsigned long operand2_flags = operand2->flags;
@@ -2358,6 +2364,7 @@ static int check_expr_operands(struct trace_array *tr,
 		if (!var)
 			return -EINVAL;
 		operand1_flags = var->flags;
+		*var1 = var;
 	}
 
 	if ((operand2_flags & HIST_FIELD_FL_VAR_REF) ||
@@ -2368,6 +2375,7 @@ static int check_expr_operands(struct trace_array *tr,
 		if (!var)
 			return -EINVAL;
 		operand2_flags = var->flags;
+		*var2 = var;
 	}
 
 	if ((operand1_flags & HIST_FIELD_FL_TIMESTAMP_USECS) !=
@@ -2385,9 +2393,12 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 				     char *var_name, unsigned int *n_subexprs)
 {
 	struct hist_field *operand1 = NULL, *operand2 = NULL, *expr = NULL;
-	unsigned long operand_flags;
+	struct hist_field *var1 = NULL, *var2 = NULL;
+	unsigned long operand_flags, operand2_flags;
 	int field_op, ret = -EINVAL;
 	char *sep, *operand1_str;
+	hist_field_fn_t op_fn;
+	bool combine_consts;
 
 	if (*n_subexprs > 3) {
 		hist_err(file->tr, HIST_ERR_TOO_MANY_SUBEXPR, errpos(str));
@@ -2444,11 +2455,38 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 		goto free;
 	}
 
-	ret = check_expr_operands(file->tr, operand1, operand2);
+	switch (field_op) {
+	case FIELD_OP_MINUS:
+		op_fn = hist_field_minus;
+		break;
+	case FIELD_OP_PLUS:
+		op_fn = hist_field_plus;
+		break;
+	case FIELD_OP_DIV:
+		op_fn = hist_field_div;
+		break;
+	case FIELD_OP_MULT:
+		op_fn = hist_field_mult;
+		break;
+	default:
+		ret = -EINVAL;
+		goto free;
+	}
+
+	ret = check_expr_operands(file->tr, operand1, operand2, &var1, &var2);
 	if (ret)
 		goto free;
 
-	flags |= HIST_FIELD_FL_EXPR;
+	operand_flags = var1 ? var1->flags : operand1->flags;
+	operand2_flags = var2 ? var2->flags : operand2->flags;
+
+	/*
+	 * If both operands are constant, the expression can be
+	 * collapsed to a single constant.
+	 */
+	combine_consts = operand_flags & operand2_flags & HIST_FIELD_FL_CONST;
+
+	flags |= combine_consts ? HIST_FIELD_FL_CONST : HIST_FIELD_FL_EXPR;
 
 	flags |= operand1->flags &
 		(HIST_FIELD_FL_TIMESTAMP | HIST_FIELD_FL_TIMESTAMP_USECS);
@@ -2465,37 +2503,43 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	expr->operands[0] = operand1;
 	expr->operands[1] = operand2;
 
-	/* The operand sizes should be the same, so just pick one */
-	expr->size = operand1->size;
+	if (combine_consts) {
+		if (var1)
+			expr->operands[0] = var1;
+		if (var2)
+			expr->operands[1] = var2;
 
-	expr->operator = field_op;
-	expr->name = expr_str(expr, 0);
-	expr->type = kstrdup(operand1->type, GFP_KERNEL);
-	if (!expr->type) {
-		ret = -ENOMEM;
-		goto free;
-	}
+		expr->constant = op_fn(expr, NULL, NULL, NULL);
 
-	switch (field_op) {
-	case FIELD_OP_MINUS:
-		expr->fn = hist_field_minus;
-		break;
-	case FIELD_OP_PLUS:
-		expr->fn = hist_field_plus;
-		break;
-	case FIELD_OP_DIV:
-		expr->fn = hist_field_div;
-		break;
-	case FIELD_OP_MULT:
-		expr->fn = hist_field_mult;
-		break;
-	default:
-		ret = -EINVAL;
-		goto free;
+		expr->operands[0] = NULL;
+		expr->operands[1] = NULL;
+
+		/*
+		 * var refs won't be destroyed immediately
+		 * See: destroy_hist_field()
+		 */
+		destroy_hist_field(operand2, 0);
+		destroy_hist_field(operand1, 0);
+
+		expr->name = expr_str(expr, 0);
+	} else {
+		expr->fn = op_fn;
+
+		/* The operand sizes should be the same, so just pick one */
+		expr->size = operand1->size;
+
+		expr->operator = field_op;
+		expr->type = kstrdup_const(operand1->type, GFP_KERNEL);
+		if (!expr->type) {
+			ret = -ENOMEM;
+			goto free;
+		}
+
+		expr->name = expr_str(expr, 0);
 	}
 
 	return expr;
- free:
+free:
 	destroy_hist_field(operand1, 0);
 	destroy_hist_field(operand2, 0);
 	destroy_hist_field(expr, 0);
-- 
GitLab


From fe8d0a93e777333302ade8b0e6288bc9161e9bb3 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:38 -0700
Subject: [PATCH 0810/4878] UPSTREAM: tracing/histogram: Optimize division by a
 power of 2

The division is a slow operation. If the divisor is a power of 2, use a
shift instead.

Results were obtained using Android's version of perf (simpleperf[1]) as
described below:

1. hist_field_div() is modified to call 2 test functions:
   test_hist_field_div_[not]_optimized(); passing them the
   same args. Use noinline and volatile to ensure these are
   not optimized out by the compiler.
2. Create a hist event trigger that uses division:
      events/kmem/rss_stat$ echo 'hist:keys=common_pid:x=size/<divisor>'
         >> trigger
      events/kmem/rss_stat$ echo 'hist:keys=common_pid:vals=$x'
         >> trigger
3. Run Android's lmkd_test[2] to generate rss_stat events, and
   record CPU samples with Android's simpleperf:
      simpleperf record -a --exclude-perf --post-unwind=yes -m 16384 -g
         -f 2000 -o perf.data

== Results ==

Divisor is a power of 2 (divisor == 32):

   test_hist_field_div_not_optimized  | 8,717,091 cpu-cycles
   test_hist_field_div_optimized      | 1,643,137 cpu-cycles

If the divisor is a power of 2, the optimized version is ~5.3x faster.

Divisor is not a power of 2 (divisor == 33):

   test_hist_field_div_not_optimized  | 4,444,324 cpu-cycles
   test_hist_field_div_optimized      | 5,497,958 cpu-cycles

If the divisor is not a power of 2, as expected, the optimized version is
slightly slower (~24% slower).

[1] https://android.googlesource.com/platform/system/extras/+/master/simpleperf/doc/README.md
[2] https://cs.android.com/android/platform/superproject/+/master:system/memory/lmkd/tests/lmkd_test.cpp

Link: https://lkml.kernel.org/r/20211025200852.3002369-7-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 722eddaa4043acee8f031cf238ced5f7514ad638)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Iffa3aa6beba6c0f6e1761047e14a69486bf0753d
---
 kernel/trace/trace_events_hist.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index e65f7fe76c0fc..321b37bb68264 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -272,6 +272,10 @@ static u64 hist_field_div(struct hist_field *hist_field,
 	if (!val2)
 		return -1;
 
+	/* Use shift if the divisor is a power of 2 */
+	if (!(val2 & (val2 - 1)))
+		return val1 >> __ffs64(val2);
+
 	return div64_u64(val1, val2);
 }
 
-- 
GitLab


From 0036c192be43712ac842765fb65166eb7b0b8e6b Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Mon, 25 Oct 2021 13:08:40 -0700
Subject: [PATCH 0811/4878] UPSTREAM: tracing/histogram: Document expression
 arithmetic and constants

Histogram expressions now support division, and multiplication in
addition to the already supported subtraction and addition operators.

Numeric constants can also be used in a hist trigger expressions
or assigned to a variable and used by refernce in an expression.

Link: https://lkml.kernel.org/r/20211025200852.3002369-9-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 2d2f6d4b8ce738ef43fc3436b43cecd2fea64152)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Iaf9609e3b0373414280f6c8aae638c034797bbf2
---
 Documentation/trace/histogram.rst | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
index f99be8062bc82..4a0ccbe824deb 100644
--- a/Documentation/trace/histogram.rst
+++ b/Documentation/trace/histogram.rst
@@ -1762,6 +1762,20 @@ using the same key and variable from yet another event::
 
   # echo 'hist:key=pid:wakeupswitch_lat=$wakeup_lat+$switchtime_lat ...' >> event3/trigger
 
+Expressions support the use of addition, subtraction, multiplication and
+division operators (+-*/).
+
+Note that division by zero always returns -1.
+
+Numeric constants can also be used directly in an expression::
+
+  # echo 'hist:keys=next_pid:timestamp_secs=common_timestamp/1000000 ...' >> event/trigger
+
+or assigned to a variable and referenced in a subsequent expression::
+
+  # echo 'hist:keys=next_pid:us_per_sec=1000000 ...' >> event/trigger
+  # echo 'hist:keys=next_pid:timestamp_secs=common_timestamp/$us_per_sec ...' >> event/trigger
+
 2.2.2 Synthetic Events
 ----------------------
 
-- 
GitLab


From 572d42d1b0cb3750b41a1fc9b58cbc91b7a909d7 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Thu, 28 Oct 2021 10:05:48 -0700
Subject: [PATCH 0812/4878] UPSTREAM: tracing/histogram: Fix documentation
 inline emphasis warning

This fixes the warning:

Documentation/trace/histogram.rst:1766: WARNING: Inline emphasis
start-string without end-string

The issue was caused by an unescaped '*' character.

Link: https://lore.kernel.org/all/20211028170548.2597449-1-kaleshsingh@google.com/T/#m77da47432f5cc6521d4294ffdb9621949cc35d04
Link: https://lkml.kernel.org/r/20211028170548.2597449-1-kaleshsingh@google.com

Fixes: 2d2f6d4b8ce7 ("tracing/histogram: Document expression arithmetic and constants")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 93d76e4a0e0112b320c4f0e2a3930ad634628c58)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ie9d0738d8bb47ea7fd84917a79cad99fdefe767f
---
 Documentation/trace/histogram.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
index 4a0ccbe824deb..6672dea52ed78 100644
--- a/Documentation/trace/histogram.rst
+++ b/Documentation/trace/histogram.rst
@@ -1763,7 +1763,7 @@ using the same key and variable from yet another event::
   # echo 'hist:key=pid:wakeupswitch_lat=$wakeup_lat+$switchtime_lat ...' >> event3/trigger
 
 Expressions support the use of addition, subtraction, multiplication and
-division operators (+-*/).
+division operators (+-\*/).
 
 Note that division by zero always returns -1.
 
-- 
GitLab


From 34cb12b5d32b1e343b1330fdc75e2634b965cbec Mon Sep 17 00:00:00 2001
From: kernel test robot <lkp@intel.com>
Date: Sat, 30 Oct 2021 08:56:15 +0800
Subject: [PATCH 0813/4878] UPSTREAM: tracing/histogram: Fix semicolon.cocci
 warnings

kernel/trace/trace_events_hist.c:6039:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Link: https://lkml.kernel.org/r/20211030005615.GA41257@3074f0d39c61

Fixes: c5eac6ee8bc5 ("tracing/histogram: Simplify handling of .sym-offset in expressions")
CC: Kalesh Singh <kaleshsingh@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit feea69ec121f067073868cebe0cb9d003e64ad80)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Id6929c9ea0cc4e9f8e3c7ac1279410db1ae8f413
---
 kernel/trace/trace_events_hist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 321b37bb68264..f1140e697a34d 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -5963,7 +5963,7 @@ static int event_hist_trigger_func(struct event_command *cmd_ops,
 	while (start) {
 		*(start + 4) = 'X';
 		start = strstr(start + 11, ".sym-offset");
-	};
+	}
 
 	attrs = parse_hist_trigger_attrs(file->tr, trigger);
 	if (IS_ERR(attrs))
-- 
GitLab


From 43484db804f5433cca07a33793c86e9d0ec47c5f Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 29 Oct 2021 16:24:10 -0700
Subject: [PATCH 0814/4878] BACKPORT: tracing/histogram: Optimize division by
 constants

If the divisor is a constant use specific division functions to
avoid extra branches when the trigger is hit.

If the divisor constant but not a power of 2, the division can be
replaced with a multiplication and shift in the following case:

Let X = dividend and Y = divisor.

Choose Z = some power of 2. If Y <= Z, then:
    X / Y = (X * (Z / Y)) / Z

(Z / Y) is a constant (mult) which is calculated at parse time, so:
    X / Y = (X * mult) / Z

The division by Z can be replaced by a shift since Z is a power of 2:
    X / Y = (X * mult) >> shift

As long, as X < Z the results will not be off by more than 1.

Link: https://lkml.kernel.org/r/20211029232410.3494196-1-kaleshsingh@google.com

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 8b5d46fd7a3892a2e71c9ba6330f1b46d533d0a0)

[ Kalesh Singh: Resolve conflicts in kernel/trace/trace_events_hist.c ]
Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I700b7fdfa461f9ca5d8c49aecbf8ea19c5c74a18
---
 kernel/trace/trace_events_hist.c | 102 ++++++++++++++++++++++++++++++-
 1 file changed, 101 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index f1140e697a34d..2270ce15e7198 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -68,7 +68,8 @@
 	C(INVALID_SORT_FIELD,	"Sort field must be a key or a val"),	\
 	C(INVALID_STR_OPERAND,	"String type can not be an operand in expression"), \
 	C(EXPECT_NUMBER,	"Expecting numeric literal"),		\
-	C(UNARY_MINUS_SUBEXPR,	"Unary minus not supported in sub-expressions"),
+	C(UNARY_MINUS_SUBEXPR,	"Unary minus not supported in sub-expressions"), \
+	C(DIVISION_BY_ZERO,	"Division by zero"),
 
 #undef C
 #define C(a, b)		HIST_ERR_##a
@@ -91,6 +92,7 @@ typedef u64 (*hist_field_fn_t) (struct hist_field *field,
 #define HIST_FIELDS_MAX		(TRACING_MAP_FIELDS_MAX + TRACING_MAP_VARS_MAX)
 #define HIST_ACTIONS_MAX	8
 #define HIST_CONST_DIGITS_MAX	21
+#define HIST_DIV_SHIFT		20  /* For optimizing division by constants */
 
 enum field_op_id {
 	FIELD_OP_NONE,
@@ -158,6 +160,8 @@ struct hist_field {
 
 	/* Numeric literals are represented as u64 */
 	u64				constant;
+	/* Used to optimize division by constants */
+	u64				div_multiplier;
 };
 
 static u64 hist_field_none(struct hist_field *field,
@@ -279,6 +283,65 @@ static u64 hist_field_div(struct hist_field *hist_field,
 	return div64_u64(val1, val2);
 }
 
+static u64 div_by_power_of_two(struct hist_field *hist_field,
+				struct tracing_map_elt *elt,
+				struct ring_buffer_event *rbe,
+				void *event)
+{
+	struct hist_field *operand1 = hist_field->operands[0];
+	struct hist_field *operand2 = hist_field->operands[1];
+
+	u64 val1 = operand1->fn(operand1, elt, rbe, event);
+
+	return val1 >> __ffs64(operand2->constant);
+}
+
+static u64 div_by_not_power_of_two(struct hist_field *hist_field,
+				struct tracing_map_elt *elt,
+				struct ring_buffer_event *rbe,
+				void *event)
+{
+	struct hist_field *operand1 = hist_field->operands[0];
+	struct hist_field *operand2 = hist_field->operands[1];
+
+	u64 val1 = operand1->fn(operand1, elt, rbe, event);
+
+	return div64_u64(val1, operand2->constant);
+}
+
+static u64 div_by_mult_and_shift(struct hist_field *hist_field,
+				struct tracing_map_elt *elt,
+				struct ring_buffer_event *rbe,
+				void *event)
+{
+	struct hist_field *operand1 = hist_field->operands[0];
+	struct hist_field *operand2 = hist_field->operands[1];
+
+	u64 val1 = operand1->fn(operand1, elt, rbe, event);
+
+	/*
+	 * If the divisor is a constant, do a multiplication and shift instead.
+	 *
+	 * Choose Z = some power of 2. If Y <= Z, then:
+	 *     X / Y = (X * (Z / Y)) / Z
+	 *
+	 * (Z / Y) is a constant (mult) which is calculated at parse time, so:
+	 *     X / Y = (X * mult) / Z
+	 *
+	 * The division by Z can be replaced by a shift since Z is a power of 2:
+	 *     X / Y = (X * mult) >> HIST_DIV_SHIFT
+	 *
+	 * As long, as X < Z the results will not be off by more than 1.
+	 */
+	if (val1 < (1 << HIST_DIV_SHIFT)) {
+		u64 mult = operand2->div_multiplier;
+
+		return (val1 * mult + ((1 << HIST_DIV_SHIFT) - 1)) >> HIST_DIV_SHIFT;
+	}
+
+	return div64_u64(val1, operand2->constant);
+}
+
 static u64 hist_field_mult(struct hist_field *hist_field,
 			   struct tracing_map_elt *elt,
 			   struct ring_buffer_event *rbe,
@@ -535,6 +598,25 @@ struct snapshot_context {
 	void			*key;
 };
 
+/*
+ * Returns the specific division function to use if the divisor
+ * is constant. This avoids extra branches when the trigger is hit.
+ */
+static hist_field_fn_t hist_field_get_div_fn(struct hist_field *divisor)
+{
+	u64 div = divisor->constant;
+
+	if (!(div & (div - 1)))
+		return div_by_power_of_two;
+
+	/* If the divisor is too large, do a regular division */
+	if (div > (1 << HIST_DIV_SHIFT))
+		return div_by_not_power_of_two;
+
+	divisor->div_multiplier = div64_u64((u64)(1 << HIST_DIV_SHIFT), div);
+	return div_by_mult_and_shift;
+}
+
 static void track_data_free(struct track_data *track_data)
 {
 	struct hist_elt_data *elt_data;
@@ -2507,6 +2589,24 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	expr->operands[0] = operand1;
 	expr->operands[1] = operand2;
 
+	if (field_op == FIELD_OP_DIV &&
+			operand2_flags & HIST_FIELD_FL_CONST) {
+		u64 divisor = var2 ? var2->constant : operand2->constant;
+
+		if (!divisor) {
+			hist_err(file->tr, HIST_ERR_DIVISION_BY_ZERO, errpos(str));
+			ret = -EDOM;
+			goto free;
+		}
+
+		/*
+		 * Copy the divisor here so we don't have to look it up
+		 * later if this is a var ref
+		 */
+		operand2->constant = divisor;
+		op_fn = hist_field_get_div_fn(operand2);
+	}
+
 	if (combine_consts) {
 		if (var1)
 			expr->operands[0] = var1;
-- 
GitLab


From 47347e1917f4adec0757881b0f32fe06116eb5de Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 29 Oct 2021 11:33:28 -0700
Subject: [PATCH 0815/4878] UPSTREAM: tracing/histogram: Update division by 0
 documentation

If the divisor is a constant and zero, the undeifned case can be
detected and an error returned instead of -1.

Link: https://lkml.kernel.org/r/20211029183339.3216491-3-kaleshsingh@google.com

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 0ca6d12c9768ee15e6c7d65ddb5cb35c05946e1e)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I5bf188056aa42bee69f0e4439a23b004295322db
---
 Documentation/trace/histogram.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
index 6672dea52ed78..1ef750ee72cee 100644
--- a/Documentation/trace/histogram.rst
+++ b/Documentation/trace/histogram.rst
@@ -1765,7 +1765,8 @@ using the same key and variable from yet another event::
 Expressions support the use of addition, subtraction, multiplication and
 division operators (+-\*/).
 
-Note that division by zero always returns -1.
+Note if division by zero cannot be detected at parse time (i.e. the
+divisor is not a constant), the result will be -1.
 
 Numeric constants can also be used directly in an expression::
 
-- 
GitLab


From bb73ccd8536e3c4ec0b6b6390130ae91fe6348fb Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 29 Oct 2021 11:33:29 -0700
Subject: [PATCH 0816/4878] UPSTREAM: tracing/histogram: Document hist trigger
 variables

Update the tracefs README to describe how hist trigger variables
can be created.

Link: https://lkml.kernel.org/r/20211029183339.3216491-4-kaleshsingh@google.com

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 6a6e5ef2b27f45c15cca569a0825dfd75f564c35)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I8ea0a4c44fe3496d13a09bcf4922e8aa5cdb78ba
---
 kernel/trace/trace.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index cdf6dd5ff88df..4c9c2cb3f6f58 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5235,6 +5235,7 @@ static const char readme_msg[] =
 #ifdef CONFIG_HIST_TRIGGERS
 	"      hist trigger\t- If set, event hits are aggregated into a hash table\n"
 	"\t    Format: hist:keys=<field1[,field2,...]>\n"
+	"\t            [:<var1>=<field|var_ref|numeric_literal>[,<var2>=...]]\n"
 	"\t            [:values=<field1[,field2,...]>]\n"
 	"\t            [:sort=<field1[,field2,...]>]\n"
 	"\t            [:size=#entries]\n"
@@ -5246,6 +5247,16 @@ static const char readme_msg[] =
 	"\t            common_timestamp - to record current timestamp\n"
 	"\t            common_cpu - to record the CPU the event happened on\n"
 	"\n"
+	"\t    A hist trigger variable can be:\n"
+	"\t        - a reference to a field e.g. x=current_timestamp,\n"
+	"\t        - a reference to another variable e.g. y=$x,\n"
+	"\t        - a numeric literal: e.g. ms_per_sec=1000,\n"
+	"\t        - an arithmetic expression: e.g. time_secs=current_timestamp/1000\n"
+	"\n"
+	"\t    hist trigger aritmethic expressions support addition(+), subtraction(-),\n"
+	"\t    multiplication(*) and division(/) operators. An operand can be either a\n"
+	"\t    variable reference, field or numeric literal.\n"
+	"\n"
 	"\t    When a matching event is hit, an entry is added to a hash\n"
 	"\t    table using the key(s) and value(s) named, and the value of a\n"
 	"\t    sum called 'hitcount' is incremented.  Keys and values\n"
-- 
GitLab


From 437bfe2d64c9457c727d4c435f1a6da3fe16fcde Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 29 Oct 2021 11:33:30 -0700
Subject: [PATCH 0817/4878] UPSTREAM: tracing/selftests: Add tests for hist
 trigger expression parsing

Add tests for the parsing of hist trigger expressions; and to
validate expression evaluation.

Link: https://lkml.kernel.org/r/20211029183339.3216491-5-kaleshsingh@google.com

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 4e9f63c9e5c2597692567ee1cb0851a21104a531)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I4c5f12675ab6ec2641a45ab1852e07b8adcd827a
---
 .../trigger/trigger-hist-expressions.tc       | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc

diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc
new file mode 100644
index 0000000000000..05ffba299dbf2
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc
@@ -0,0 +1,63 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test histogram expression parsing
+# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist error_log "<var1>=<field|var_ref|numeric_literal>":README
+
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+test_hist_expr() { # test_name expression expected_val
+    trigger="events/sched/sched_process_fork/trigger"
+
+    reset_trigger_file $trigger
+
+    echo "Test hist trigger expressions - $1"
+
+    echo "hist:keys=common_pid:x=$2" > $trigger
+
+    for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+
+    actual=`grep -o 'x=[[:digit:]]*' $trigger | awk -F= '{ print $2 }'`
+
+    if [ $actual != $3 ]; then
+        fail "Failed hist trigger expression evaluation: Expression: $2 Expected: $3, Actual: $actual"
+    fi
+
+    reset_trigger_file $trigger
+}
+
+check_error() { # test_name command-with-error-pos-by-^
+    trigger="events/sched/sched_process_fork/trigger"
+
+    echo "Test hist trigger expressions - $1"
+    ftrace_errlog_check 'hist:sched:sched_process_fork' "$2" $trigger
+}
+
+test_hist_expr "Variable assignment" "123" "123"
+
+test_hist_expr "Subtraction not associative" "16-8-4-2" "2"
+
+test_hist_expr "Division not associative" "64/8/4/2" "1"
+
+test_hist_expr "Same precedence operators (+,-) evaluated left to right" "16-8+4+2" "14"
+
+test_hist_expr "Same precedence operators (*,/) evaluated left to right" "4*3/2*2" "12"
+
+test_hist_expr "Multiplication evaluated before addition/subtraction" "4+3*2-2" "8"
+
+test_hist_expr "Division evaluated before addition/subtraction" "4+6/2-2" "5"
+
+# err pos for "too many subexpressions" is dependent on where
+# the last subexpression was detected. This can vary depending
+# on how the expression tree was generated.
+check_error "Too many subexpressions" 'hist:keys=common_pid:x=32+^10*3/20-4'
+check_error "Too many subexpressions" 'hist:keys=common_pid:x=^1+2+3+4+5'
+
+check_error "Unary minus not supported in subexpression" 'hist:keys=common_pid:x=-(^1)+2'
+
+check_error "Division by zero" 'hist:keys=common_pid:x=3/^0'
+
+exit 0
-- 
GitLab


From fbdefd3f6bf79fc94b39c8f9c2457f9892fab1c7 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 4 Nov 2021 11:00:03 -0700
Subject: [PATCH 0818/4878] FROMLIST: scsi: ufs: Improve SCSI abort handling

The following has been observed on a test setup:

WARNING: CPU: 4 PID: 250 at drivers/scsi/ufs/ufshcd.c:2737 ufshcd_queuecommand+0x468/0x65c
Call trace:
 ufshcd_queuecommand+0x468/0x65c
 scsi_send_eh_cmnd+0x224/0x6a0
 scsi_eh_test_devices+0x248/0x418
 scsi_eh_ready_devs+0xc34/0xe58
 scsi_error_handler+0x204/0x80c
 kthread+0x150/0x1b4
 ret_from_fork+0x10/0x30

That warning is triggered by the following statement:

	WARN_ON(lrbp->cmd);

Fix this warning by clearing lrbp->cmd from the abort handler.

Fixes: 7a3e97b0dc4b ("[SCSI] ufshcd: UFS Host controller driver")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Bug: 205096552
Link: https://lore.kernel.org/linux-scsi/20211104181059.4129537-1-bvanassche@acm.org/T/#u
Change-Id: Ia0a667791d8124f416809a7a505715da0cf78e4e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index fdd7b5d33d978..e2f65c8022032 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7120,6 +7120,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 		goto release;
 	}
 
+	lrbp->cmd = NULL;
 	err = SUCCESS;
 
 release:
-- 
GitLab


From 54aafdfafd4b33a8dfebbbc935159b515bceb2d0 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Fri, 5 Nov 2021 05:07:09 +0000
Subject: [PATCH 0819/4878] ANDROID: abi_gki_aarch64_db845c: Update abi symbol
 list to get db845c booting again

The recent UFS changes that landed caused db845c to stop booting
due to missing symbols on the symbol list.

This patch corrects it, generated by running:
  ./build/build_abi.sh -u -s

Reported-by: YongQin Liu <yongqin.liu@linaro.org>
Fixes: 908aa4a14ac9 ("UPSTREAM: scsi: ufs: ufs-qcom: Use device parameter initialization function")
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I79ff4d8aa4be812f181262d47592127ca40ecdb9
---
 android/abi_gki_aarch64_db845c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/android/abi_gki_aarch64_db845c b/android/abi_gki_aarch64_db845c
index 6b34996dcef89..69be1905a2291 100644
--- a/android/abi_gki_aarch64_db845c
+++ b/android/abi_gki_aarch64_db845c
@@ -851,7 +851,9 @@
   dma_buf_put
   dma_buf_unmap_attachment
   dma_get_sgtable_attrs
+  down_read
   find_vma
+  up_read
   wait_for_completion_interruptible
 
 # required by gpio-regulator.ko
@@ -1672,14 +1674,22 @@
 
 # required by ufs_qcom.ko
   phy_set_mode_ext
+  ufshcd_dme_configure_adapt
   ufshcd_dme_get_attr
   ufshcd_dme_set_attr
   ufshcd_dump_regs
   ufshcd_get_local_unipro_ver
   ufshcd_get_pwr_dev_param
+  ufshcd_init_pwr_dev_param
   ufshcd_pltfrm_init
   ufshcd_pltfrm_shutdown
   ufshcd_remove
+  ufshcd_resume_complete
+  ufshcd_runtime_resume
+  ufshcd_runtime_suspend
+  ufshcd_suspend_prepare
+  ufshcd_system_resume
+  ufshcd_system_suspend
   ufshcd_uic_hibern8_enter
   ufshcd_uic_hibern8_exit
 
-- 
GitLab


From 7b57c38d12aed1b5d92f74748bed25e0d041729f Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@redhat.com>
Date: Fri, 8 Oct 2021 13:01:18 +0800
Subject: [PATCH 0820/4878] scsi: core: Put LLD module refcnt after SCSI device
 is released

commit f2b85040acec9a928b4eb1b57a989324e8e38d3f upstream.

SCSI host release is triggered when SCSI device is freed. We have to make
sure that the low-level device driver module won't be unloaded before SCSI
host instance is released because shost->hostt is required in the release
handler.

Make sure to put LLD module refcnt after SCSI device is released.

Fixes a kernel panic of 'BUG: unable to handle page fault for address'
reported by Changhui and Yi.

Link: https://lore.kernel.org/r/20211008050118.1440686-1-ming.lei@redhat.com
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Changhui Zhong <czhong@redhat.com>
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi.c       | 4 +++-
 drivers/scsi/scsi_sysfs.c | 9 +++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 24619c3bebd52..6ad834d61d4c7 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -545,8 +545,10 @@ EXPORT_SYMBOL(scsi_device_get);
  */
 void scsi_device_put(struct scsi_device *sdev)
 {
-	module_put(sdev->host->hostt->module);
+	struct module *mod = sdev->host->hostt->module;
+
 	put_device(&sdev->sdev_gendev);
+	module_put(mod);
 }
 EXPORT_SYMBOL(scsi_device_put);
 
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 8173b67ec7b0f..1378bb1a7371c 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -450,9 +450,12 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)
 	struct scsi_vpd *vpd_pg80 = NULL, *vpd_pg83 = NULL;
 	struct scsi_vpd *vpd_pg0 = NULL, *vpd_pg89 = NULL;
 	unsigned long flags;
+	struct module *mod;
 
 	sdev = container_of(work, struct scsi_device, ew.work);
 
+	mod = sdev->host->hostt->module;
+
 	scsi_dh_release_device(sdev);
 
 	parent = sdev->sdev_gendev.parent;
@@ -501,11 +504,17 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)
 
 	if (parent)
 		put_device(parent);
+	module_put(mod);
 }
 
 static void scsi_device_dev_release(struct device *dev)
 {
 	struct scsi_device *sdp = to_scsi_device(dev);
+
+	/* Set module pointer as NULL in case of module unloading */
+	if (!try_module_get(sdp->host->hostt->module))
+		sdp->host->hostt->module = NULL;
+
 	execute_in_process_context(scsi_device_dev_release_usercontext,
 				   &sdp->ew);
 }
-- 
GitLab


From 748786564a358945922aa43a5b90710c81ed133e Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 2 Nov 2021 15:49:30 +0000
Subject: [PATCH 0821/4878] Revert "io_uring: reinforce cancel on flush during
 exit"

This reverts commit 88dbd085a51ec78c83dde79ad63bca8aa4272a9d.

Causes the following Syzkaller reported issue:

BUG: kernel NULL pointer dereference, address: 0000000000000010
PGD 0 P4D 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 546 Comm: syz-executor631 Tainted: G    B             5.10.76-syzkaller-01178-g4944ec82ebb9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:arch_atomic_try_cmpxchg syzkaller/managers/android-5-10/kernel/./arch/x86/include/asm/atomic.h:202 [inline]
RIP: 0010:atomic_try_cmpxchg_acquire syzkaller/managers/android-5-10/kernel/./include/asm-generic/atomic-instrumented.h:707 [inline]
RIP: 0010:queued_spin_lock syzkaller/managers/android-5-10/kernel/./include/asm-generic/qspinlock.h:82 [inline]
RIP: 0010:do_raw_spin_lock_flags syzkaller/managers/android-5-10/kernel/./include/linux/spinlock.h:195 [inline]
RIP: 0010:__raw_spin_lock_irqsave syzkaller/managers/android-5-10/kernel/./include/linux/spinlock_api_smp.h:119 [inline]
RIP: 0010:_raw_spin_lock_irqsave+0x10d/0x210 syzkaller/managers/android-5-10/kernel/kernel/locking/spinlock.c:159
Code: 00 00 00 e8 d5 29 09 fd 4c 89 e7 be 04 00 00 00 e8 c8 29 09 fd 42 8a 04 3b 84 c0 0f 85 be 00 00 00 8b 44 24 40 b9 01 00 00 00 <f0> 41 0f b1 4d 00 75 45 48 c7 44 24 20 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc90000f174e0 EFLAGS: 00010097
RAX: 0000000000000000 RBX: 1ffff920001e2ea4 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc90000f17520
RBP: ffffc90000f175b0 R08: dffffc0000000000 R09: 0000000000000003
R10: fffff520001e2ea5 R11: 0000000000000004 R12: ffffc90000f17520
R13: 0000000000000010 R14: 1ffff920001e2ea0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 000000000640f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 prepare_to_wait+0x9c/0x290 syzkaller/managers/android-5-10/kernel/kernel/sched/wait.c:248
 io_uring_cancel_files syzkaller/managers/android-5-10/kernel/fs/io_uring.c:8690 [inline]
 io_uring_cancel_task_requests+0x16a9/0x1ed0 syzkaller/managers/android-5-10/kernel/fs/io_uring.c:8760
 io_uring_flush+0x170/0x6d0 syzkaller/managers/android-5-10/kernel/fs/io_uring.c:8923
 filp_close+0xb0/0x150 syzkaller/managers/android-5-10/kernel/fs/open.c:1319
 close_files syzkaller/managers/android-5-10/kernel/fs/file.c:401 [inline]
 put_files_struct+0x1d4/0x350 syzkaller/managers/android-5-10/kernel/fs/file.c:429
 exit_files+0x80/0xa0 syzkaller/managers/android-5-10/kernel/fs/file.c:458
 do_exit+0x6d9/0x23a0 syzkaller/managers/android-5-10/kernel/kernel/exit.c:808
 do_group_exit+0x16a/0x2d0 syzkaller/managers/android-5-10/kernel/kernel/exit.c:910
 get_signal+0x133e/0x1f80 syzkaller/managers/android-5-10/kernel/kernel/signal.c:2790
 arch_do_signal+0x8d/0x620 syzkaller/managers/android-5-10/kernel/arch/x86/kernel/signal.c:805
 exit_to_user_mode_loop syzkaller/managers/android-5-10/kernel/kernel/entry/common.c:161 [inline]
 exit_to_user_mode_prepare+0xaa/0xe0 syzkaller/managers/android-5-10/kernel/kernel/entry/common.c:191
 syscall_exit_to_user_mode+0x24/0x40 syzkaller/managers/android-5-10/kernel/kernel/entry/common.c:266
 do_syscall_64+0x3d/0x70 syzkaller/managers/android-5-10/kernel/arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc6d1589a89
Code: Unable to access opcode bytes at RIP 0x7fc6d1589a5f.
RSP: 002b:00007ffd2b5da728 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 0000000000005193 RCX: 00007fc6d1589a89
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc6d161142c
RBP: 0000000000000032 R08: 00007ffd2b5eb0b8 R09: 0000000000000000
R10: 00007ffd2b5da750 R11: 0000000000000246 R12: 00007fc6d161142c
R13: 00007ffd2b5da750 R14: 00007ffd2b5da770 R15: 0000000000000000
Modules linked in:
CR2: 0000000000000010
---[ end trace fe8044f7dc4d8d65 ]---
RIP: 0010:arch_atomic_try_cmpxchg syzkaller/managers/android-5-10/kernel/./arch/x86/include/asm/atomic.h:202 [inline]
RIP: 0010:atomic_try_cmpxchg_acquire syzkaller/managers/android-5-10/kernel/./include/asm-generic/atomic-instrumented.h:707 [inline]
RIP: 0010:queued_spin_lock syzkaller/managers/android-5-10/kernel/./include/asm-generic/qspinlock.h:82 [inline]
RIP: 0010:do_raw_spin_lock_flags syzkaller/managers/android-5-10/kernel/./include/linux/spinlock.h:195 [inline]
RIP: 0010:__raw_spin_lock_irqsave syzkaller/managers/android-5-10/kernel/./include/linux/spinlock_api_smp.h:119 [inline]
RIP: 0010:_raw_spin_lock_irqsave+0x10d/0x210 syzkaller/managers/android-5-10/kernel/kernel/locking/spinlock.c:159
Code: 00 00 00 e8 d5 29 09 fd 4c 89 e7 be 04 00 00 00 e8 c8 29 09 fd 42 8a 04 3b 84 c0 0f 85 be 00 00 00 8b 44 24 40 b9 01 00 00 00 <f0> 41 0f b1 4d 00 75 45 48 c7 44 24 20 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc90000f174e0 EFLAGS: 00010097
RAX: 0000000000000000 RBX: 1ffff920001e2ea4 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc90000f17520
RBP: ffffc90000f175b0 R08: dffffc0000000000 R09: 0000000000000003
R10: fffff520001e2ea5 R11: 0000000000000004 R12: ffffc90000f17520
R13: 0000000000000010 R14: 1ffff920001e2ea0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 000000000640f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	e8 d5 29 09 fd       	callq  0xfd0929dc
   7:	4c 89 e7             	mov    %r12,%rdi
   a:	be 04 00 00 00       	mov    $0x4,%esi
   f:	e8 c8 29 09 fd       	callq  0xfd0929dc
  14:	42 8a 04 3b          	mov    (%rbx,%r15,1),%al
  18:	84 c0                	test   %al,%al
  1a:	0f 85 be 00 00 00    	jne    0xde
  20:	8b 44 24 40          	mov    0x40(%rsp),%eax
  24:	b9 01 00 00 00       	mov    $0x1,%ecx
* 29:	f0 41 0f b1 4d 00    	lock cmpxchg %ecx,0x0(%r13) <-- trapping instruction
  2f:	75 45                	jne    0x76
  31:	48 c7 44 24 20 0e 36 	movq   $0x45e0360e,0x20(%rsp)
  38:	e0 45
  3a:	4b                   	rex.WXB
  3b:	c7                   	.byte 0xc7
  3c:	04 37                	add    $0x37,%al

Link: https://syzkaller.appspot.com/bug?extid=b0003676644cf0d6acc4
Reported-by: syzbot+b0003676644cf0d6acc4@syzkaller.appspotmail.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/io_uring.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index ee7ceea899346..104dff9c71314 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8759,9 +8759,10 @@ static void io_uring_cancel_task_requests(struct io_ring_ctx *ctx,
 	io_cancel_defer_files(ctx, task, files);
 	io_cqring_overflow_flush(ctx, true, task, files);
 
-	io_uring_cancel_files(ctx, task, files);
 	if (!files)
 		__io_uring_cancel_task_requests(ctx, task);
+	else
+		io_uring_cancel_files(ctx, task, files);
 
 	if ((ctx->flags & IORING_SETUP_SQPOLL) && ctx->sq_data) {
 		atomic_dec(&task->io_uring->in_idle);
-- 
GitLab


From 0382fdf9ae78e01e83580fb0603cdb3e20224804 Mon Sep 17 00:00:00 2001
From: Erik Ekman <erik@kryo.se>
Date: Sun, 17 Oct 2021 19:16:57 +0200
Subject: [PATCH 0822/4878] sfc: Fix reading non-legacy supported link modes

commit 041c61488236a5a84789083e3d9f0a51139b6edf upstream.

Everything except the first 32 bits was lost when the pause flags were
added. This makes the 50000baseCR2 mode flag (bit 34) not appear.

I have tested this with a 10G card (SFN5122F-R7) by modifying it to
return a non-legacy link mode (10000baseCR).

Signed-off-by: Erik Ekman <erik@kryo.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/sfc/ethtool_common.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/sfc/ethtool_common.c b/drivers/net/ethernet/sfc/ethtool_common.c
index bf1443539a1a4..bd552c7dffcb1 100644
--- a/drivers/net/ethernet/sfc/ethtool_common.c
+++ b/drivers/net/ethernet/sfc/ethtool_common.c
@@ -563,20 +563,14 @@ int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct efx_link_state *link_state = &efx->link_state;
-	u32 supported;
 
 	mutex_lock(&efx->mac_lock);
 	efx_mcdi_phy_get_link_ksettings(efx, cmd);
 	mutex_unlock(&efx->mac_lock);
 
 	/* Both MACs support pause frames (bidirectional and respond-only) */
-	ethtool_convert_link_mode_to_legacy_u32(&supported,
-						cmd->link_modes.supported);
-
-	supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
-
-	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
-						supported);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
 
 	if (LOOPBACK_INTERNAL(efx)) {
 		cmd->base.speed = link_state->speed;
-- 
GitLab


From b9c85a71e1b4898e978c594a44e881456313a855 Mon Sep 17 00:00:00 2001
From: Eugene Crosser <crosser@average.org>
Date: Mon, 18 Oct 2021 20:22:50 +0200
Subject: [PATCH 0823/4878] vrf: Revert "Reset skb conntrack connection..."

commit 55161e67d44fdd23900be166a81e996abd6e3be9 upstream.

This reverts commit 09e856d54bda5f288ef8437a90ab2b9b3eab83d1.

When an interface is enslaved in a VRF, prerouting conntrack hook is
called twice: once in the context of the original input interface, and
once in the context of the VRF interface. If no special precausions are
taken, this leads to creation of two conntrack entries instead of one,
and breaks SNAT.

Commit above was intended to avoid creation of extra conntrack entries
when input interface is enslaved in a VRF. It did so by resetting
conntrack related data associated with the skb when it enters VRF context.

However it breaks netfilter operation. Imagine a use case when conntrack
zone must be assigned based on the original input interface, rather than
VRF interface (that would make original interfaces indistinguishable). One
could create netfilter rules similar to these:

        chain rawprerouting {
                type filter hook prerouting priority raw;
                iif realiface1 ct zone set 1 return
                iif realiface2 ct zone set 2 return
        }

This works before the mentioned commit, but not after: zone assignment
is "forgotten", and any subsequent NAT or filtering that is dependent
on the conntrack zone does not work.

Here is a reproducer script that demonstrates the difference in behaviour.

==========
#!/bin/sh

# This script demonstrates unexpected change of nftables behaviour
# caused by commit 09e856d54bda5f28 ""vrf: Reset skb conntrack
# connection on VRF rcv"
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=09e856d54bda5f288ef8437a90ab2b9b3eab83d1
#
# Before the commit, it was possible to assign conntrack zone to a
# packet (or mark it for `notracking`) in the prerouting chanin, raw
# priority, based on the `iif` (interface from which the packet
# arrived).
# After the change, # if the interface is enslaved in a VRF, such
# assignment is lost. Instead, assignment based on the `iif` matching
# the VRF master interface is honored. Thus it is impossible to
# distinguish packets based on the original interface.
#
# This script demonstrates this change of behaviour: conntrack zone 1
# or 2 is assigned depending on the match with the original interface
# or the vrf master interface. It can be observed that conntrack entry
# appears in different zone in the kernel versions before and after
# the commit.

IPIN=172.30.30.1
IPOUT=172.30.30.2
PFXL=30

ip li sh vein >/dev/null 2>&1 && ip li del vein
ip li sh tvrf >/dev/null 2>&1 && ip li del tvrf
nft list table testct >/dev/null 2>&1 && nft delete table testct

ip li add vein type veth peer veout
ip li add tvrf type vrf table 9876
ip li set veout master tvrf
ip li set vein up
ip li set veout up
ip li set tvrf up
/sbin/sysctl -w net.ipv4.conf.veout.accept_local=1
/sbin/sysctl -w net.ipv4.conf.veout.rp_filter=0
ip addr add $IPIN/$PFXL dev vein
ip addr add $IPOUT/$PFXL dev veout

nft -f - <<__END__
table testct {
	chain rawpre {
		type filter hook prerouting priority raw;
		iif { veout, tvrf } meta nftrace set 1
		iif veout ct zone set 1 return
		iif tvrf ct zone set 2 return
		notrack
	}
	chain rawout {
		type filter hook output priority raw;
		notrack
	}
}
__END__

uname -rv
conntrack -F
ping -W 1 -c 1 -I vein $IPOUT
conntrack -L

Signed-off-by: Eugene Crosser <crosser@average.org>
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/vrf.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index d406da82b4fb8..2746f77745e4d 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1313,8 +1313,6 @@ static struct sk_buff *vrf_ip6_rcv(struct net_device *vrf_dev,
 	bool need_strict = rt6_need_strict(&ipv6_hdr(skb)->daddr);
 	bool is_ndisc = ipv6_ndisc_frame(skb);
 
-	nf_reset_ct(skb);
-
 	/* loopback, multicast & non-ND link-local traffic; do not push through
 	 * packet taps again. Reset pkt_type for upper layers to process skb.
 	 * For strict packets with a source LLA, determine the dst using the
@@ -1371,8 +1369,6 @@ static struct sk_buff *vrf_ip_rcv(struct net_device *vrf_dev,
 	skb->skb_iif = vrf_dev->ifindex;
 	IPCB(skb)->flags |= IPSKB_L3SLAVE;
 
-	nf_reset_ct(skb);
-
 	if (ipv4_is_multicast(ip_hdr(skb)->daddr))
 		goto out;
 
-- 
GitLab


From b93a70bf2b5756dc088d7b7f41dc7d25cc765de8 Mon Sep 17 00:00:00 2001
From: Yuiko Oshino <yuiko.oshino@microchip.com>
Date: Wed, 27 Oct 2021 14:23:02 -0400
Subject: [PATCH 0824/4878] net: ethernet: microchip: lan743x: Fix skb
 allocation failure

commit e8684db191e4164f3f5f3ad7dec04a6734c25f1c upstream.

The driver allocates skb during ndo_open with GFP_ATOMIC which has high chance of failure when there are multiple instances.
GFP_KERNEL is enough while open and use GFP_ATOMIC only from interrupt context.

Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index e14dfaafe4391..3eea8cf076c48 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1963,13 +1963,13 @@ static int lan743x_rx_next_index(struct lan743x_rx *rx, int index)
 	return ((++index) % rx->ring_size);
 }
 
-static struct sk_buff *lan743x_rx_allocate_skb(struct lan743x_rx *rx)
+static struct sk_buff *lan743x_rx_allocate_skb(struct lan743x_rx *rx, gfp_t gfp)
 {
 	int length = 0;
 
 	length = (LAN743X_MAX_FRAME_SIZE + ETH_HLEN + 4 + RX_HEAD_PADDING);
 	return __netdev_alloc_skb(rx->adapter->netdev,
-				  length, GFP_ATOMIC | GFP_DMA);
+				  length, gfp);
 }
 
 static void lan743x_rx_update_tail(struct lan743x_rx *rx, int index)
@@ -2141,7 +2141,8 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
 			struct sk_buff *new_skb = NULL;
 			int packet_length;
 
-			new_skb = lan743x_rx_allocate_skb(rx);
+			new_skb = lan743x_rx_allocate_skb(rx,
+							  GFP_ATOMIC | GFP_DMA);
 			if (!new_skb) {
 				/* failed to allocate next skb.
 				 * Memory is very low.
@@ -2377,7 +2378,8 @@ static int lan743x_rx_ring_init(struct lan743x_rx *rx)
 
 	rx->last_head = 0;
 	for (index = 0; index < rx->ring_size; index++) {
-		struct sk_buff *new_skb = lan743x_rx_allocate_skb(rx);
+		struct sk_buff *new_skb = lan743x_rx_allocate_skb(rx,
+								   GFP_KERNEL);
 
 		ret = lan743x_rx_init_ring_element(rx, index, new_skb);
 		if (ret)
-- 
GitLab


From d7fc85f6104259541ec136199d3bf7c8a736613d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 7 Jun 2021 17:23:48 +0200
Subject: [PATCH 0825/4878] media: firewire: firedtv-avc: fix a buffer overflow
 in avc_ca_pmt()

commit 35d2969ea3c7d32aee78066b1f3cf61a0d935a4e upstream.

The bounds checking in avc_ca_pmt() is not strict enough.  It should
be checking "read_pos + 4" because it's reading 5 bytes.  If the
"es_info_length" is non-zero then it reads a 6th byte so there needs to
be an additional check for that.

I also added checks for the "write_pos".  I don't think these are
required because "read_pos" and "write_pos" are tied together so
checking one ought to be enough.  But they make the code easier to
understand for me.  The check on write_pos is:

	if (write_pos + 4 >= sizeof(c->operand) - 4) {

The first "+ 4" is because we're writing 5 bytes and the last " - 4"
is to leave space for the CRC.

The other problem is that "length" can be invalid.  It comes from
"data_length" in fdtv_ca_pmt().

Cc: stable@vger.kernel.org
Reported-by: Luo Likang <luolikang@nsfocus.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/firewire/firedtv-avc.c | 14 +++++++++++---
 drivers/media/firewire/firedtv-ci.c  |  2 ++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/media/firewire/firedtv-avc.c b/drivers/media/firewire/firedtv-avc.c
index 2bf9467b917d1..71991f8638e6b 100644
--- a/drivers/media/firewire/firedtv-avc.c
+++ b/drivers/media/firewire/firedtv-avc.c
@@ -1165,7 +1165,11 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
 		read_pos += program_info_length;
 		write_pos += program_info_length;
 	}
-	while (read_pos < length) {
+	while (read_pos + 4 < length) {
+		if (write_pos + 4 >= sizeof(c->operand) - 4) {
+			ret = -EINVAL;
+			goto out;
+		}
 		c->operand[write_pos++] = msg[read_pos++];
 		c->operand[write_pos++] = msg[read_pos++];
 		c->operand[write_pos++] = msg[read_pos++];
@@ -1177,13 +1181,17 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
 		c->operand[write_pos++] = es_info_length >> 8;
 		c->operand[write_pos++] = es_info_length & 0xff;
 		if (es_info_length > 0) {
+			if (read_pos >= length) {
+				ret = -EINVAL;
+				goto out;
+			}
 			pmt_cmd_id = msg[read_pos++];
 			if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
 				dev_err(fdtv->device, "invalid pmt_cmd_id %d at stream level\n",
 					pmt_cmd_id);
 
-			if (es_info_length > sizeof(c->operand) - 4 -
-					     write_pos) {
+			if (es_info_length > sizeof(c->operand) - 4 - write_pos ||
+			    es_info_length > length - read_pos) {
 				ret = -EINVAL;
 				goto out;
 			}
diff --git a/drivers/media/firewire/firedtv-ci.c b/drivers/media/firewire/firedtv-ci.c
index 9363d005e2b61..e0d57e09dab0c 100644
--- a/drivers/media/firewire/firedtv-ci.c
+++ b/drivers/media/firewire/firedtv-ci.c
@@ -134,6 +134,8 @@ static int fdtv_ca_pmt(struct firedtv *fdtv, void *arg)
 	} else {
 		data_length = msg->msg[3];
 	}
+	if (data_length > sizeof(msg->msg) - data_pos)
+		return -EINVAL;
 
 	return avc_ca_pmt(fdtv, &msg->msg[data_pos], data_length);
 }
-- 
GitLab


From 50f46bd3094992305cdde8832203634f01d46eea Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 3 Nov 2021 16:51:12 +0100
Subject: [PATCH 0826/4878] Revert "xhci: Set HCD flag to defer primary roothub
 registration"

This reverts commit 0ea9ac731a315cd10bd6d6b33817b68ca9111ecf which is
commit b7a0a792f864583207c593b50fd1b752ed89f4c1 upstream.

It has been reported to be causing problems in Arch and Fedora bug
reports.

Reported-by: Hans de Goede <hdegoede@redhat.com>
Link: https://bbs.archlinux.org/viewtopic.php?pid=2000956#p2000956
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2019542
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2019576
Link: https://lore.kernel.org/r/42bcbea6-5eb8-16c7-336a-2cb72e71bc36@redhat.com
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Chris Chiu <chris.chiu@canonical.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 0d6dc2e20f2aa..bf42ba3e4415a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -693,7 +693,6 @@ int xhci_run(struct usb_hcd *hcd)
 		if (ret)
 			xhci_free_command(xhci, command);
 	}
-	set_bit(HCD_FLAG_DEFER_RH_REGISTER, &hcd->flags);
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
 			"Finished xhci_run for USB2 roothub");
 
-- 
GitLab


From 5a7957491e31c5d6bbffa2e5d471402e931f14ca Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 3 Nov 2021 16:51:36 +0100
Subject: [PATCH 0827/4878] Revert "usb: core: hcd: Add support for deferring
 roothub registration"

This reverts commit d58fc9e9c15825e3a8fc1ef3b52495c93c41e71c which is
commit 58877b0824da15698bd85a0a9dbfa8c354e6ecb7 upstream.

It has been reported to be causing problems in Arch and Fedora bug
reports.

Reported-by: Hans de Goede <hdegoede@redhat.com>
Link: https://bbs.archlinux.org/viewtopic.php?pid=2000956#p2000956
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2019542
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2019576
Link: https://lore.kernel.org/r/42bcbea6-5eb8-16c7-336a-2cb72e71bc36@redhat.com
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Chris Chiu <chris.chiu@canonical.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c  | 29 ++++++-----------------------
 include/linux/usb/hcd.h |  2 --
 2 files changed, 6 insertions(+), 25 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 4bbf3316a9a53..99908d8d2dd36 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2640,7 +2640,6 @@ int usb_add_hcd(struct usb_hcd *hcd,
 {
 	int retval;
 	struct usb_device *rhdev;
-	struct usb_hcd *shared_hcd;
 
 	if (!hcd->skip_phy_initialization && usb_hcd_is_primary_hcd(hcd)) {
 		hcd->phy_roothub = usb_phy_roothub_alloc(hcd->self.sysdev);
@@ -2797,26 +2796,13 @@ int usb_add_hcd(struct usb_hcd *hcd,
 		goto err_hcd_driver_start;
 	}
 
-	/* starting here, usbcore will pay attention to the shared HCD roothub */
-	shared_hcd = hcd->shared_hcd;
-	if (!usb_hcd_is_primary_hcd(hcd) && shared_hcd && HCD_DEFER_RH_REGISTER(shared_hcd)) {
-		retval = register_root_hub(shared_hcd);
-		if (retval != 0)
-			goto err_register_root_hub;
-
-		if (shared_hcd->uses_new_polling && HCD_POLL_RH(shared_hcd))
-			usb_hcd_poll_rh_status(shared_hcd);
-	}
-
 	/* starting here, usbcore will pay attention to this root hub */
-	if (!HCD_DEFER_RH_REGISTER(hcd)) {
-		retval = register_root_hub(hcd);
-		if (retval != 0)
-			goto err_register_root_hub;
+	retval = register_root_hub(hcd);
+	if (retval != 0)
+		goto err_register_root_hub;
 
-		if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
-			usb_hcd_poll_rh_status(hcd);
-	}
+	if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
+		usb_hcd_poll_rh_status(hcd);
 
 	return retval;
 
@@ -2859,7 +2845,6 @@ EXPORT_SYMBOL_GPL(usb_add_hcd);
 void usb_remove_hcd(struct usb_hcd *hcd)
 {
 	struct usb_device *rhdev = hcd->self.root_hub;
-	bool rh_registered;
 
 	dev_info(hcd->self.controller, "remove, state %x\n", hcd->state);
 
@@ -2870,7 +2855,6 @@ void usb_remove_hcd(struct usb_hcd *hcd)
 
 	dev_dbg(hcd->self.controller, "roothub graceful disconnect\n");
 	spin_lock_irq (&hcd_root_hub_lock);
-	rh_registered = hcd->rh_registered;
 	hcd->rh_registered = 0;
 	spin_unlock_irq (&hcd_root_hub_lock);
 
@@ -2880,8 +2864,7 @@ void usb_remove_hcd(struct usb_hcd *hcd)
 	cancel_work_sync(&hcd->died_work);
 
 	mutex_lock(&usb_bus_idr_lock);
-	if (rh_registered)
-		usb_disconnect(&rhdev);		/* Sets rhdev to NULL */
+	usb_disconnect(&rhdev);		/* Sets rhdev to NULL */
 	mutex_unlock(&usb_bus_idr_lock);
 
 	/*
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 9f05016d823f8..3dbb42c637c14 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -124,7 +124,6 @@ struct usb_hcd {
 #define HCD_FLAG_RH_RUNNING		5	/* root hub is running? */
 #define HCD_FLAG_DEAD			6	/* controller has died? */
 #define HCD_FLAG_INTF_AUTHORIZED	7	/* authorize interfaces? */
-#define HCD_FLAG_DEFER_RH_REGISTER	8	/* Defer roothub registration */
 
 	/* The flags can be tested using these macros; they are likely to
 	 * be slightly faster than test_bit().
@@ -135,7 +134,6 @@ struct usb_hcd {
 #define HCD_WAKEUP_PENDING(hcd)	((hcd)->flags & (1U << HCD_FLAG_WAKEUP_PENDING))
 #define HCD_RH_RUNNING(hcd)	((hcd)->flags & (1U << HCD_FLAG_RH_RUNNING))
 #define HCD_DEAD(hcd)		((hcd)->flags & (1U << HCD_FLAG_DEAD))
-#define HCD_DEFER_RH_REGISTER(hcd) ((hcd)->flags & (1U << HCD_FLAG_DEFER_RH_REGISTER))
 
 	/*
 	 * Specifies if interfaces are authorized by default
-- 
GitLab


From 6d67b2a73b8e3a079c355bab3c1aef7d85a044b8 Mon Sep 17 00:00:00 2001
From: Yang Shi <shy828301@gmail.com>
Date: Thu, 28 Oct 2021 14:36:30 -0700
Subject: [PATCH 0828/4878] mm: khugepaged: skip huge page collapse for special
 files

commit a4aeaa06d45e90f9b279f0b09de84bd00006e733 upstream.

The read-only THP for filesystems will collapse THP for files opened
readonly and mapped with VM_EXEC.  The intended usecase is to avoid TLB
misses for large text segments.  But it doesn't restrict the file types
so a THP could be collapsed for a non-regular file, for example, block
device, if it is opened readonly and mapped with EXEC permission.  This
may cause bugs, like [1] and [2].

This is definitely not the intended usecase, so just collapse THP for
regular files in order to close the attack surface.

[shy828301@gmail.com: fix vm_file check [3]]

Link: https://lore.kernel.org/lkml/CACkBjsYwLYLRmX8GpsDpMthagWOjWWrNxqY6ZLNQVr6yx+f5vA@mail.gmail.com/ [1]
Link: https://lore.kernel.org/linux-mm/000000000000c6a82505ce284e4c@google.com/ [2]
Link: https://lkml.kernel.org/r/CAHbLzkqTW9U3VvTu1Ki5v_cLRC9gHW+znBukg_ycergE0JWj-A@mail.gmail.com [3]
Link: https://lkml.kernel.org/r/20211027195221.3825-1-shy828301@gmail.com
Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Yang Shi <shy828301@gmail.com>
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: syzbot+aae069be1de40fb11825@syzkaller.appspotmail.com
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Andrea Righi <andrea.righi@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/khugepaged.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index ff389d970b683..969e57dde65f9 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -443,21 +443,24 @@ static bool hugepage_vma_check(struct vm_area_struct *vma,
 	if (!transhuge_vma_enabled(vma, vm_flags))
 		return false;
 
+	if (vma->vm_file && !IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) -
+				vma->vm_pgoff, HPAGE_PMD_NR))
+		return false;
+
 	/* Enabled via shmem mount options or sysfs settings. */
-	if (shmem_file(vma->vm_file) && shmem_huge_enabled(vma)) {
-		return IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff,
-				HPAGE_PMD_NR);
-	}
+	if (shmem_file(vma->vm_file))
+		return shmem_huge_enabled(vma);
 
 	/* THP settings require madvise. */
 	if (!(vm_flags & VM_HUGEPAGE) && !khugepaged_always())
 		return false;
 
-	/* Read-only file mappings need to be aligned for THP to work. */
+	/* Only regular file is valid */
 	if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && vma->vm_file &&
 	    (vm_flags & VM_DENYWRITE)) {
-		return IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff,
-				HPAGE_PMD_NR);
+		struct inode *inode = vma->vm_file->f_inode;
+
+		return S_ISREG(inode->i_mode);
 	}
 
 	if (!vma->anon_vma || vma->vm_ops)
-- 
GitLab


From bbc920fb320f1c241cc34ac85edaa0058922246a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 4 Nov 2021 09:35:57 +0100
Subject: [PATCH 0829/4878] Revert "drm/ttm: fix memleak in
 ttm_transfered_destroy"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit c21b4002214c1c7e7b627b9b53375612f7aab6db which is
commit 0db55f9a1bafbe3dac750ea669de9134922389b5 upstream.

Seems that the older kernels can not handle this fix because, to quote
Christian:
	The problem is this memory leak could potentially happen with
	5.10 as wel, just much much much less likely.

	But my guess is that 5.10 is so buggy that when the leak does
	NOT happen we double free and obviously causing a crash.

So it needs to be reverted.

Link: https://lore.kernel.org/r/1a1cc125-9314-f569-a6c4-40fc4509a377@amd.com
Cc: Christian König <christian.koenig@amd.com>
Cc: Erhard F. <erhard_f@mailbox.org>
Cc: Erhard F. <erhard_f@mailbox.org>
Cc: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/ttm/ttm_bo_util.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 8fba425a76268..fb2a25f8408fc 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -322,7 +322,6 @@ static void ttm_transfered_destroy(struct ttm_buffer_object *bo)
 	struct ttm_transfer_obj *fbo;
 
 	fbo = container_of(bo, struct ttm_transfer_obj, base);
-	dma_resv_fini(&fbo->base.base._resv);
 	ttm_bo_put(fbo->bo);
 	kfree(fbo);
 }
-- 
GitLab


From f84b791d4c3b459ef404c32fc5986f18758461e9 Mon Sep 17 00:00:00 2001
From: Wang Kefeng <wangkefeng.wang@huawei.com>
Date: Mon, 23 Aug 2021 10:41:42 +0100
Subject: [PATCH 0830/4878] ARM: 9120/1: Revert "amba: make use of -1 IRQs
 warn"

commit eb4f756915875b0ea0757751cd29841f0504d547 upstream.

After commit 77a7300abad7 ("of/irq: Get rid of NO_IRQ usage"),
no irq case has been removed, irq_of_parse_and_map() will return
0 in all cases when get error from parse and map an interrupt into
linux virq space.

amba_device_register() is only used on no-DT initialization, see
  s3c64xx_pl080_init()		arch/arm/mach-s3c/pl080.c
  ep93xx_init_devices()		arch/arm/mach-ep93xx/core.c

They won't set -1 to irq[0], so no need the warn.

This reverts commit 2eac58d5026e4ec8b17ff8b62877fea9e1d2f1b3.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/amba/bus.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index b5f5ca4e3f343..8f4ae6e967e39 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -375,9 +375,6 @@ static int amba_device_try_add(struct amba_device *dev, struct resource *parent)
 	void __iomem *tmp;
 	int i, ret;
 
-	WARN_ON(dev->irq[0] == (unsigned int)-1);
-	WARN_ON(dev->irq[1] == (unsigned int)-1);
-
 	ret = request_resource(parent, &dev->res);
 	if (ret)
 		goto err_out;
-- 
GitLab


From 68765fc977629f79f68f016802246d3d2f308fa6 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Fri, 22 Oct 2021 15:04:47 +0100
Subject: [PATCH 0831/4878] Revert "wcn36xx: Disable bmps when encryption is
 disabled"

commit 285bb1738e196507bf985574d0bc1e9dd72d46b1 upstream.

This reverts commit c6522a5076e1a65877c51cfee313a74ef61cabf8.

Testing on tip-of-tree shows that this is working now. Revert this and
re-enable BMPS for Open APs.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211022140447.2846248-3-bryan.odonoghue@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/wcn36xx/main.c    | 10 ----------
 drivers/net/wireless/ath/wcn36xx/pmc.c     |  5 +----
 drivers/net/wireless/ath/wcn36xx/wcn36xx.h |  1 -
 3 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 6bed619535427..43be20baab354 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -601,15 +601,6 @@ static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 				}
 			}
 		}
-		/* FIXME: Only enable bmps support when encryption is enabled.
-		 * For any reasons, when connected to open/no-security BSS,
-		 * the wcn36xx controller in bmps mode does not forward
-		 * 'wake-up' beacons despite AP sends DTIM with station AID.
-		 * It could be due to a firmware issue or to the way driver
-		 * configure the station.
-		 */
-		if (vif->type == NL80211_IFTYPE_STATION)
-			vif_priv->allow_bmps = true;
 		break;
 	case DISABLE_KEY:
 		if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
@@ -909,7 +900,6 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
 				    vif->addr,
 				    bss_conf->aid);
 			vif_priv->sta_assoc = false;
-			vif_priv->allow_bmps = false;
 			wcn36xx_smd_set_link_st(wcn,
 						bss_conf->bssid,
 						vif->addr,
diff --git a/drivers/net/wireless/ath/wcn36xx/pmc.c b/drivers/net/wireless/ath/wcn36xx/pmc.c
index 2d0780fefd477..2936aaf532738 100644
--- a/drivers/net/wireless/ath/wcn36xx/pmc.c
+++ b/drivers/net/wireless/ath/wcn36xx/pmc.c
@@ -23,10 +23,7 @@ int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
 {
 	int ret = 0;
 	struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
-
-	if (!vif_priv->allow_bmps)
-		return -ENOTSUPP;
-
+	/* TODO: Make sure the TX chain clean */
 	ret = wcn36xx_smd_enter_bmps(wcn, vif);
 	if (!ret) {
 		wcn36xx_dbg(WCN36XX_DBG_PMC, "Entered BMPS\n");
diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
index d0fcce86903ae..9b4dee2fc6483 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -127,7 +127,6 @@ struct wcn36xx_vif {
 	enum wcn36xx_hal_bss_type bss_type;
 
 	/* Power management */
-	bool allow_bmps;
 	enum wcn36xx_power_state pw_state;
 
 	u8 bss_index;
-- 
GitLab


From f3eb44f496ef09a7df20f264879a396f642e73a7 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 4 Nov 2021 12:23:08 +0100
Subject: [PATCH 0832/4878] ALSA: usb-audio: Add Schiit Hel device to mixer map
 quirk table

commit 22390ce786c59328ccd13c329959dee1e8757487 upstream.

This is a fix equivalent with the upstream commit 22390ce786c5 ("ALSA:
usb-audio: add Schiit Hel device to quirk table"), adapted to the
earlier kernels up to 5.14.y.  It adds the quirk entry with the old
ignore_ctl_error flag to the usbmix_ctl_maps, instead.

The original patch description says:
    The Shciit Hel device responds to the ctl message for the mic capture
    switch with a timeout of -EPIPE:

            usb 7-2.2: cannot get ctl value: req = 0x81, wValue = 0x100, wIndex = 0x1100, type = 1
            usb 7-2.2: cannot get ctl value: req = 0x81, wValue = 0x100, wIndex = 0x1100, type = 1
            usb 7-2.2: cannot get ctl value: req = 0x81, wValue = 0x100, wIndex = 0x1100, type = 1
            usb 7-2.2: cannot get ctl value: req = 0x81, wValue = 0x100, wIndex = 0x1100, type = 1

    This seems safe to ignore as the device works properly with the control
    message quirk, so add it to the quirk table so all is good.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/mixer_maps.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index c5794e83fd800..809ac6d18d2bf 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -538,6 +538,10 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
 		.id = USB_ID(0x25c4, 0x0003),
 		.map = scms_usb3318_map,
 	},
+	{
+		.id = USB_ID(0x30be, 0x0101), /*  Schiit Hel */
+		.ignore_ctl_error = 1,
+	},
 	{
 		/* Bose Companion 5 */
 		.id = USB_ID(0x05a7, 0x1020),
-- 
GitLab


From 4c7c0243275b926d35e6904c20ded6463bd69a82 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 4 Nov 2021 12:23:09 +0100
Subject: [PATCH 0833/4878] ALSA: usb-audio: Add Audient iD14 to mixer map
 quirk table

commit df0380b9539b04c1ae8854a984098da06d5f1e67 upstream.

This is a fix equivalent with the upstream commit df0380b9539b ("ALSA:
usb-audio: Add quirk for Audient iD14"), adapted to the earlier
kernels up to 5.14.y.  It adds the quirk entry with the old
ignore_ctl_error flag to the usbmix_ctl_maps, instead.

The original commit description says:
    Audient iD14 (2708:0002) may get a control message error that
    interferes the operation e.g. with alsactl.  Add the quirk to ignore
    such errors like other devices.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/mixer_maps.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 809ac6d18d2bf..8f6823df944ff 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -528,6 +528,10 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
 		.id = USB_ID(0x2573, 0x0008),
 		.map = maya44_map,
 	},
+	{
+		.id = USB_ID(0x2708, 0x0002), /* Audient iD14 */
+		.ignore_ctl_error = 1,
+	},
 	{
 		/* KEF X300A */
 		.id = USB_ID(0x27ac, 0x1000),
-- 
GitLab


From 5040520482a594e92d4f69141229a6dd26173511 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 6 Nov 2021 14:10:10 +0100
Subject: [PATCH 0834/4878] Linux 5.10.78

Link: https://lore.kernel.org/r/20211104141159.561284732@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Link: https://lore.kernel.org/r/20211104170112.899181800@linuxfoundation.org
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a58f49e415dc6..288fb48392538 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 77
+SUBLEVEL = 78
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From d65efd5b73dcd6167cf7a68c0647db9af5373fbe Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Tue, 12 Oct 2021 09:56:12 -0700
Subject: [PATCH 0835/4878] UPSTREAM: binder: use euid from cred instead of
 using task

Save the 'struct cred' associated with a binder process
at initial open to avoid potential race conditions
when converting to an euid.

Set a transaction's sender_euid from the 'struct cred'
saved at binder_open() instead of looking up the euid
from the binder proc's 'struct task'. This ensures
the euid is associated with the security context that
of the task that opened binder.

Cc: stable@vger.kernel.org # 4.4+
Fixes: 457b9a6f09f0 ("Staging: android: add binder driver")
Signed-off-by: Todd Kjos <tkjos@google.com>
Suggested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Suggested-by: Jann Horn <jannh@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Bug: 200688826
(cherry picked from commit 29bc22ac5e5bc63275e850f0c8fc549e3d0e306b)
Change-Id: Icaf996a7f5543b7d6943dff3cbe89bfc3614044c
---
 drivers/android/binder.c          | 4 +++-
 drivers/android/binder_internal.h | 4 ++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index d565081d2f3d9..e209c1ae69ffd 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2842,7 +2842,7 @@ static void binder_transaction(struct binder_proc *proc,
 		t->from = thread;
 	else
 		t->from = NULL;
-	t->sender_euid = task_euid(proc->tsk);
+	t->sender_euid = proc->cred->euid;
 	t->to_proc = target_proc;
 	t->to_thread = target_thread;
 	t->code = tr->code;
@@ -4500,6 +4500,7 @@ static void binder_free_proc(struct binder_proc *proc)
 	}
 	binder_alloc_deferred_release(&proc->alloc);
 	put_task_struct(proc->tsk);
+	put_cred(proc->cred);
 	binder_stats_deleted(BINDER_STAT_PROC);
 	kfree(proc);
 }
@@ -5179,6 +5180,7 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	spin_lock_init(&proc->outer_lock);
 	get_task_struct(current->group_leader);
 	proc->tsk = current->group_leader;
+	proc->cred = get_cred(filp->f_cred);
 	INIT_LIST_HEAD(&proc->todo);
 	init_waitqueue_head(&proc->freeze_wait);
 	if (binder_supported_policy(current->policy)) {
diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h
index 2ddbec09d2f90..b73210c201e20 100644
--- a/drivers/android/binder_internal.h
+++ b/drivers/android/binder_internal.h
@@ -385,6 +385,9 @@ struct binder_priority {
  *                        (invariant after initialized)
  * @tsk                   task_struct for group_leader of process
  *                        (invariant after initialized)
+ * @cred                  struct cred associated with the `struct file`
+ *                        in binder_open()
+ *                        (invariant after initialized)
  * @deferred_work_node:   element for binder_deferred_list
  *                        (protected by binder_deferred_lock)
  * @deferred_work:        bitmap of deferred work to perform
@@ -445,6 +448,7 @@ struct binder_proc {
 	struct list_head waiting_threads;
 	int pid;
 	struct task_struct *tsk;
+	const struct cred *cred;
 	struct hlist_node deferred_work_node;
 	int deferred_work;
 	int outstanding_txns;
-- 
GitLab


From 869fbe4d864b21ffc077c1718e7279ad46423456 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Tue, 12 Oct 2021 09:56:13 -0700
Subject: [PATCH 0836/4878] UPSTREAM: binder: use cred instead of task for
 selinux checks

Since binder was integrated with selinux, it has passed
'struct task_struct' associated with the binder_proc
to represent the source and target of transactions.
The conversion of task to SID was then done in the hook
implementations. It turns out that there are race conditions
which can result in an incorrect security context being used.

Fix by using the 'struct cred' saved during binder_open and pass
it to the selinux subsystem.

Cc: stable@vger.kernel.org # 5.14 (need backport for earlier stables)
Fixes: 79af73079d75 ("Add security hooks to binder and implement the hooks for SELinux.")
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Bug: 200688826
(cherry picked from commit 52f88693378a58094c538662ba652aff0253c4fe)
Change-Id: I1664c1f0c2142c17e9ca0d6790bb94de79f531e3
---
 drivers/android/binder.c      | 12 ++++++------
 include/linux/lsm_hook_defs.h | 14 +++++++-------
 include/linux/lsm_hooks.h     | 14 +++++++-------
 include/linux/security.h      | 28 +++++++++++++--------------
 security/security.c           | 14 +++++++-------
 security/selinux/hooks.c      | 36 +++++++++++++++--------------------
 6 files changed, 56 insertions(+), 62 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index e209c1ae69ffd..81e25b2d31895 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2181,7 +2181,7 @@ static int binder_translate_binder(struct flat_binder_object *fp,
 		ret = -EINVAL;
 		goto done;
 	}
-	if (security_binder_transfer_binder(proc->tsk, target_proc->tsk)) {
+	if (security_binder_transfer_binder(proc->cred, target_proc->cred)) {
 		ret = -EPERM;
 		goto done;
 	}
@@ -2227,7 +2227,7 @@ static int binder_translate_handle(struct flat_binder_object *fp,
 				  proc->pid, thread->pid, fp->handle);
 		return -EINVAL;
 	}
-	if (security_binder_transfer_binder(proc->tsk, target_proc->tsk)) {
+	if (security_binder_transfer_binder(proc->cred, target_proc->cred)) {
 		ret = -EPERM;
 		goto done;
 	}
@@ -2315,7 +2315,7 @@ static int binder_translate_fd(u32 fd, binder_size_t fd_offset,
 		ret = -EBADF;
 		goto err_fget;
 	}
-	ret = security_binder_transfer_file(proc->tsk, target_proc->tsk, file);
+	ret = security_binder_transfer_file(proc->cred, target_proc->cred, file);
 	if (ret < 0) {
 		ret = -EPERM;
 		goto err_security;
@@ -2725,8 +2725,8 @@ static void binder_transaction(struct binder_proc *proc,
 		}
 		e->to_node = target_node->debug_id;
 		trace_android_vh_binder_trans(target_proc, proc, thread, tr);
-		if (security_binder_transaction(proc->tsk,
-						target_proc->tsk) < 0) {
+		if (security_binder_transaction(proc->cred,
+						target_proc->cred) < 0) {
 			return_error = BR_FAILED_REPLY;
 			return_error_param = -EPERM;
 			return_error_line = __LINE__;
@@ -4713,7 +4713,7 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp,
 		ret = -EBUSY;
 		goto out;
 	}
-	ret = security_binder_set_context_mgr(proc->tsk);
+	ret = security_binder_set_context_mgr(proc->cred);
 	if (ret < 0)
 		goto out;
 	if (uid_valid(context->binder_context_mgr_uid)) {
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 435a2e22ff95a..37dc5594081d1 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -26,13 +26,13 @@
  *   #undef LSM_HOOK
  * };
  */
-LSM_HOOK(int, 0, binder_set_context_mgr, struct task_struct *mgr)
-LSM_HOOK(int, 0, binder_transaction, struct task_struct *from,
-	 struct task_struct *to)
-LSM_HOOK(int, 0, binder_transfer_binder, struct task_struct *from,
-	 struct task_struct *to)
-LSM_HOOK(int, 0, binder_transfer_file, struct task_struct *from,
-	 struct task_struct *to, struct file *file)
+LSM_HOOK(int, 0, binder_set_context_mgr, const struct cred *mgr)
+LSM_HOOK(int, 0, binder_transaction, const struct cred *from,
+	 const struct cred *to)
+LSM_HOOK(int, 0, binder_transfer_binder, const struct cred *from,
+	 const struct cred *to)
+LSM_HOOK(int, 0, binder_transfer_file, const struct cred *from,
+	 const struct cred *to, struct file *file)
 LSM_HOOK(int, 0, ptrace_access_check, struct task_struct *child,
 	 unsigned int mode)
 LSM_HOOK(int, 0, ptrace_traceme, struct task_struct *parent)
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 3af055b7ee1f0..0ad8aa6579145 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1297,22 +1297,22 @@
  *
  * @binder_set_context_mgr:
  *	Check whether @mgr is allowed to be the binder context manager.
- *	@mgr contains the task_struct for the task being registered.
+ *	@mgr contains the struct cred for the current binder process.
  *	Return 0 if permission is granted.
  * @binder_transaction:
  *	Check whether @from is allowed to invoke a binder transaction call
  *	to @to.
- *	@from contains the task_struct for the sending task.
- *	@to contains the task_struct for the receiving task.
+ *	@from contains the struct cred for the sending process.
+ *	@to contains the struct cred for the receiving process.
  * @binder_transfer_binder:
  *	Check whether @from is allowed to transfer a binder reference to @to.
- *	@from contains the task_struct for the sending task.
- *	@to contains the task_struct for the receiving task.
+ *	@from contains the struct cred for the sending process.
+ *	@to contains the struct cred for the receiving process.
  * @binder_transfer_file:
  *	Check whether @from is allowed to transfer @file to @to.
- *	@from contains the task_struct for the sending task.
+ *	@from contains the struct cred for the sending process.
  *	@file contains the struct file being transferred.
- *	@to contains the task_struct for the receiving task.
+ *	@to contains the struct cred for the receiving process.
  *
  * @ptrace_access_check:
  *	Check permission before allowing the current process to trace the
diff --git a/include/linux/security.h b/include/linux/security.h
index 48c6ed9ba0867..9af6bc48c751b 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -252,13 +252,13 @@ extern int security_init(void);
 extern int early_security_init(void);
 
 /* Security operations */
-int security_binder_set_context_mgr(struct task_struct *mgr);
-int security_binder_transaction(struct task_struct *from,
-				struct task_struct *to);
-int security_binder_transfer_binder(struct task_struct *from,
-				    struct task_struct *to);
-int security_binder_transfer_file(struct task_struct *from,
-				  struct task_struct *to, struct file *file);
+int security_binder_set_context_mgr(const struct cred *mgr);
+int security_binder_transaction(const struct cred *from,
+				const struct cred *to);
+int security_binder_transfer_binder(const struct cred *from,
+				    const struct cred *to);
+int security_binder_transfer_file(const struct cred *from,
+				  const struct cred *to, struct file *file);
 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 int security_ptrace_traceme(struct task_struct *parent);
 int security_capget(struct task_struct *target,
@@ -494,25 +494,25 @@ static inline int early_security_init(void)
 	return 0;
 }
 
-static inline int security_binder_set_context_mgr(struct task_struct *mgr)
+static inline int security_binder_set_context_mgr(const struct cred *mgr)
 {
 	return 0;
 }
 
-static inline int security_binder_transaction(struct task_struct *from,
-					      struct task_struct *to)
+static inline int security_binder_transaction(const struct cred *from,
+					      const struct cred *to)
 {
 	return 0;
 }
 
-static inline int security_binder_transfer_binder(struct task_struct *from,
-						  struct task_struct *to)
+static inline int security_binder_transfer_binder(const struct cred *from,
+						  const struct cred *to)
 {
 	return 0;
 }
 
-static inline int security_binder_transfer_file(struct task_struct *from,
-						struct task_struct *to,
+static inline int security_binder_transfer_file(const struct cred *from,
+						const struct cred *to,
 						struct file *file)
 {
 	return 0;
diff --git a/security/security.c b/security/security.c
index cf8ddcae1c6b5..1e0f79c665a34 100644
--- a/security/security.c
+++ b/security/security.c
@@ -689,25 +689,25 @@ static void __init lsm_early_task(struct task_struct *task)
 
 /* Security operations */
 
-int security_binder_set_context_mgr(struct task_struct *mgr)
+int security_binder_set_context_mgr(const struct cred *mgr)
 {
 	return call_int_hook(binder_set_context_mgr, 0, mgr);
 }
 
-int security_binder_transaction(struct task_struct *from,
-				struct task_struct *to)
+int security_binder_transaction(const struct cred *from,
+				const struct cred *to)
 {
 	return call_int_hook(binder_transaction, 0, from, to);
 }
 
-int security_binder_transfer_binder(struct task_struct *from,
-				    struct task_struct *to)
+int security_binder_transfer_binder(const struct cred *from,
+				    const struct cred *to)
 {
 	return call_int_hook(binder_transfer_binder, 0, from, to);
 }
 
-int security_binder_transfer_file(struct task_struct *from,
-				  struct task_struct *to, struct file *file)
+int security_binder_transfer_file(const struct cred *from,
+				  const struct cred *to, struct file *file)
 {
 	return call_int_hook(binder_transfer_file, 0, from, to, file);
 }
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index a490c8449cacf..0a18cbc641e3e 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2007,22 +2007,19 @@ static inline u32 open_file_to_av(struct file *file)
 
 /* Hook functions begin here. */
 
-static int selinux_binder_set_context_mgr(struct task_struct *mgr)
+static int selinux_binder_set_context_mgr(const struct cred *mgr)
 {
-	u32 mysid = current_sid();
-	u32 mgrsid = task_sid(mgr);
-
 	return avc_has_perm(&selinux_state,
-			    mysid, mgrsid, SECCLASS_BINDER,
+			    current_sid(), cred_sid(mgr), SECCLASS_BINDER,
 			    BINDER__SET_CONTEXT_MGR, NULL);
 }
 
-static int selinux_binder_transaction(struct task_struct *from,
-				      struct task_struct *to)
+static int selinux_binder_transaction(const struct cred *from,
+				      const struct cred *to)
 {
 	u32 mysid = current_sid();
-	u32 fromsid = task_sid(from);
-	u32 tosid = task_sid(to);
+	u32 fromsid = cred_sid(from);
+	u32 tosid = cred_sid(to);
 	int rc;
 
 	if (mysid != fromsid) {
@@ -2033,27 +2030,24 @@ static int selinux_binder_transaction(struct task_struct *from,
 			return rc;
 	}
 
-	return avc_has_perm(&selinux_state,
-			    fromsid, tosid, SECCLASS_BINDER, BINDER__CALL,
-			    NULL);
+	return avc_has_perm(&selinux_state, fromsid, tosid,
+			    SECCLASS_BINDER, BINDER__CALL, NULL);
 }
 
-static int selinux_binder_transfer_binder(struct task_struct *from,
-					  struct task_struct *to)
+static int selinux_binder_transfer_binder(const struct cred *from,
+					  const struct cred *to)
 {
-	u32 fromsid = task_sid(from);
-	u32 tosid = task_sid(to);
-
 	return avc_has_perm(&selinux_state,
-			    fromsid, tosid, SECCLASS_BINDER, BINDER__TRANSFER,
+			    cred_sid(from), cred_sid(to),
+			    SECCLASS_BINDER, BINDER__TRANSFER,
 			    NULL);
 }
 
-static int selinux_binder_transfer_file(struct task_struct *from,
-					struct task_struct *to,
+static int selinux_binder_transfer_file(const struct cred *from,
+					const struct cred *to,
 					struct file *file)
 {
-	u32 sid = task_sid(to);
+	u32 sid = cred_sid(to);
 	struct file_security_struct *fsec = selinux_file(file);
 	struct dentry *dentry = file->f_path.dentry;
 	struct inode_security_struct *isec;
-- 
GitLab


From 298c4214b324f128d2b8ff340e08119b048ba250 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Tue, 12 Oct 2021 09:56:14 -0700
Subject: [PATCH 0837/4878] UPSTREAM: binder: use cred instead of task for
 getsecid

Use the 'struct cred' saved at binder_open() to lookup
the security ID via security_cred_getsecid(). This
ensures that the security context that opened binder
is the one used to generate the secctx.

Cc: stable@vger.kernel.org # 5.4+
Fixes: ec74136ded79 ("binder: create node flag to request sender's security context")
Signed-off-by: Todd Kjos <tkjos@google.com>
Suggested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Bug: 200688826
(cherry picked from commit 4d5b5539742d2554591751b4248b0204d20dcc9d)
Change-Id: Ie023be3190caf20ca3901560455e9f027c9426cd
---
 drivers/android/binder.c | 2 +-
 include/linux/security.h | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 81e25b2d31895..87e919f34be98 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2862,7 +2862,7 @@ static void binder_transaction(struct binder_proc *proc,
 		size_t added_size;
 		int max_retries = 100;
 
-		security_task_getsecid(proc->tsk, &secid);
+		security_cred_getsecid(proc->cred, &secid);
  retry_alloc:
 		ret = security_secid_to_secctx(secid, &secctx, &secctx_sz);
 		if (ret == -ENOMEM && max_retries-- > 0) {
diff --git a/include/linux/security.h b/include/linux/security.h
index 9af6bc48c751b..a87cbacab0786 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1011,6 +1011,11 @@ static inline void security_transfer_creds(struct cred *new,
 {
 }
 
+static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
+{
+	*secid = 0;
+}
+
 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
 {
 	return 0;
-- 
GitLab


From 626441f6324919656401be3e4c125c4604325647 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Fri, 15 Oct 2021 16:38:11 -0700
Subject: [PATCH 0838/4878] UPSTREAM: binder: don't detect sender/target during
 buffer cleanup

When freeing txn buffers, binder_transaction_buffer_release()
attempts to detect whether the current context is the target by
comparing current->group_leader to proc->tsk. This is an unreliable
test. Instead explicitly pass an 'is_failure' boolean.

Detecting the sender was being used as a way to tell if the
transaction failed to be sent.  When cleaning up after
failing to send a transaction, there is no need to close
the fds associated with a BINDER_TYPE_FDA object. Now
'is_failure' can be used to accurately detect this case.

Fixes: 44d8047f1d87 ("binder: use standard functions to allocate fds")
Cc: stable <stable@vger.kernel.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Link: https://lore.kernel.org/r/20211015233811.3532235-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 202313000
(cherry picked from commit 32e9f56a96d8d0f23cb2aeb2a3cd18d40393e787)
Change-Id: If2a28ff81277d874a6138df5f5cbd541d1e3574a
---
 drivers/android/binder.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 87e919f34be98..7d0c3ba1a2b15 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -1995,7 +1995,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 		binder_dec_node(buffer->target_node, 1, 0);
 
 	off_start_offset = ALIGN(buffer->data_size, sizeof(void *));
-	off_end_offset = is_failure ? failed_at :
+	off_end_offset = is_failure && failed_at ? failed_at :
 				off_start_offset + buffer->offsets_size;
 	for (buffer_offset = off_start_offset; buffer_offset < off_end_offset;
 	     buffer_offset += sizeof(binder_size_t)) {
@@ -2081,9 +2081,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 			binder_size_t fd_buf_size;
 			binder_size_t num_valid;
 
-			if (proc->tsk != current->group_leader) {
+			if (is_failure) {
 				/*
-				 * Nothing to do if running in sender context
 				 * The fd fixups have not been applied so no
 				 * fds need to be closed.
 				 */
@@ -3337,6 +3336,7 @@ err_invalid_target_handle:
  * binder_free_buf() - free the specified buffer
  * @proc:	binder proc that owns buffer
  * @buffer:	buffer to be freed
+ * @is_failure:	failed to send transaction
  *
  * If buffer for an async transaction, enqueue the next async
  * transaction from the node.
@@ -3346,7 +3346,7 @@ err_invalid_target_handle:
 static void
 binder_free_buf(struct binder_proc *proc,
 		struct binder_thread *thread,
-		struct binder_buffer *buffer)
+		struct binder_buffer *buffer, bool is_failure)
 {
 	binder_inner_proc_lock(proc);
 	if (buffer->transaction) {
@@ -3374,7 +3374,7 @@ binder_free_buf(struct binder_proc *proc,
 		binder_node_inner_unlock(buf_node);
 	}
 	trace_binder_transaction_buffer_release(buffer);
-	binder_transaction_buffer_release(proc, thread, buffer, 0, false);
+	binder_transaction_buffer_release(proc, thread, buffer, 0, is_failure);
 	binder_alloc_free_buf(&proc->alloc, buffer);
 }
 
@@ -3568,7 +3568,7 @@ static int binder_thread_write(struct binder_proc *proc,
 				     proc->pid, thread->pid, (u64)data_ptr,
 				     buffer->debug_id,
 				     buffer->transaction ? "active" : "finished");
-			binder_free_buf(proc, thread, buffer);
+			binder_free_buf(proc, thread, buffer, false);
 			break;
 		}
 
@@ -4262,7 +4262,7 @@ retry:
 			buffer->transaction = NULL;
 			binder_cleanup_transaction(t, "fd fixups failed",
 						   BR_FAILED_REPLY);
-			binder_free_buf(proc, thread, buffer);
+			binder_free_buf(proc, thread, buffer, true);
 			binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
 				     "%d:%d %stransaction %d fd fixups failed %d/%d, line %d\n",
 				     proc->pid, thread->pid,
-- 
GitLab


From 91abc8ece242eb595e7dd0b85eac27c51a27ba88 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 8 Nov 2021 10:26:35 +0000
Subject: [PATCH 0839/4878] ANDROID: KVM: arm64: Mark select_iommu_ops static

The function is only used in the compilation unit where it is defined.
Silence a warning by marking it static.

Test: builds
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ic5b58bf355c1888d0b479b0f826a14492857c4aa
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index b8d250833b1c5..5c33ffc5b0065 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -211,7 +211,7 @@ static int finalize_host_mappings(void)
 	return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits), &walker);
 }
 
-int select_iommu_ops(enum kvm_iommu_driver driver)
+static int select_iommu_ops(enum kvm_iommu_driver driver)
 {
 	switch (driver) {
 	case KVM_IOMMU_DRIVER_NONE:
-- 
GitLab


From 764c9982bf1290ff1813b89a033e77d427be0f0f Mon Sep 17 00:00:00 2001
From: Vijayanand Jitta <vjitta@codeaurora.org>
Date: Thu, 29 Apr 2021 22:59:07 -0700
Subject: [PATCH 0840/4878] UPSTREAM: mm: vmalloc: prevent use after free in
 _vm_unmap_aliases

A potential use after free can occur in _vm_unmap_aliases where an already
freed vmap_area could be accessed, Consider the following scenario:

Process 1						Process 2

__vm_unmap_aliases					__vm_unmap_aliases
	purge_fragmented_blocks_allcpus				rcu_read_lock()
		rcu_read_lock()
			list_del_rcu(&vb->free_list)
									list_for_each_entry_rcu(vb .. )
	__purge_vmap_area_lazy
		kmem_cache_free(va)
										va_start = vb->va->va_start

Here Process 1 is in purge path and it does list_del_rcu on vmap_block and
later frees the vmap_area, since Process 2 was holding the rcu lock at
this time vmap_block will still be present in and Process 2 accesse it and
thereby it tries to access vmap_area of that vmap_block which was already
freed by Process 1 and this results in use after free.

Fix this by adding a check for vb->dirty before accessing vmap_area
structure since vb->dirty will be set to VMAP_BBMAP_BITS in purge path
checking for this will prevent the use after free.

Link: https://lkml.kernel.org/r/1616062105-23263-1-git-send-email-vjitta@codeaurora.org
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Bug: 205658047
(cherry picked from commit ad216c0316ad6391d90f4de0a7f59396b2925a06
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git)

Change-Id: I450781b5734570d1b9e8c63ac29ad3635c8e49bb
Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 0d1e0b97d1c9e..d5615977e7f3d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1749,7 +1749,7 @@ static void _vm_unmap_aliases(unsigned long start, unsigned long end, int flush)
 		rcu_read_lock();
 		list_for_each_entry_rcu(vb, &vbq->free, free_list) {
 			spin_lock(&vb->lock);
-			if (vb->dirty) {
+			if (vb->dirty && vb->dirty != VMAP_BBMAP_BITS) {
 				unsigned long va_start = vb->va->va_start;
 				unsigned long s, e;
 
-- 
GitLab


From 80090a0fcc56add8fb798d7a4eb51056184ab995 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Fri, 5 Nov 2021 14:52:21 -0700
Subject: [PATCH 0841/4878] ANDROID: Enable the ioprio cgroup controller

Enable this controller such that it can be used in performance tests.

Bug: 186902601
Change-Id: Icd863fec49e3f928b992834e07ae0660ba57ea65
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 08ab8d68b6404..8bc814855d46c 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -101,6 +101,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
 CONFIG_BLK_CGROUP_IOCOST=y
+CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
 CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y
 CONFIG_IOSCHED_BFQ=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index d7d3481c96119..1502c4c84b6a1 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -77,6 +77,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
 CONFIG_BLK_CGROUP_IOCOST=y
+CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
 CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y
 CONFIG_IOSCHED_BFQ=y
-- 
GitLab


From 8d355760c42c562fec4069d402bdf337ed27571f Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 2 Nov 2021 17:02:32 -0700
Subject: [PATCH 0842/4878] FROMLIST: scsi: core: Add support for reserved tags

Allow SCSI LLDs to allocate reserved tags by passing the BLK_MQ_REQ_RESERVED
flag to blk_mq_alloc_request().

Cc: Hannes Reinecke <hare@suse.de>
Cc: John Garry <john.garry@huawei.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Bug: 204762899
Link: https://lore.kernel.org/linux-scsi/20211103000529.1549411-2-bvanassche@acm.org/T/#u
Change-Id: I784756356702cf3368f1501a028f982519c1837f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/scsi_lib.c  | 4 +++-
 include/scsi/scsi_host.h | 9 ++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f8d83d30fd9fe..e45988c31974b 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1909,6 +1909,7 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost)
 {
 	unsigned int cmd_size, sgl_size;
 	struct blk_mq_tag_set *tag_set = &shost->tag_set;
+	unsigned int reserved_tags = shost->hostt->reserved_tags;
 
 	sgl_size = max_t(unsigned int, sizeof(struct scatterlist),
 				scsi_mq_inline_sgl_size(shost));
@@ -1924,7 +1925,8 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost)
 		tag_set->ops = &scsi_mq_ops_no_commit;
 	tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1;
 	tag_set->nr_maps = shost->nr_maps ? : 1;
-	tag_set->queue_depth = shost->can_queue;
+	tag_set->queue_depth = shost->can_queue + reserved_tags;
+	tag_set->reserved_tags = reserved_tags;
 	tag_set->cmd_size = cmd_size;
 	tag_set->numa_node = NUMA_NO_NODE;
 	tag_set->flags = BLK_MQ_F_SHOULD_MERGE;
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 4714b9dd1ecdf..585f26495ab48 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -353,10 +353,17 @@ struct scsi_host_template {
 	/*
 	 * This determines if we will use a non-interrupt driven
 	 * or an interrupt driven scheme.  It is set to the maximum number
-	 * of simultaneous commands a single hw queue in HBA will accept.
+	 * of simultaneous commands a single hw queue in HBA will accept. Does
+	 * not include @reserved_tags.
 	 */
 	int can_queue;
 
+	/*
+	 * Number of tags to reserve. A reserved tag can be allocated by passing
+	 * the BLK_MQ_REQ_RESERVED flag to blk_mq_alloc_request().
+	 */
+	unsigned reserved_tags;
+
 	/*
 	 * In many instances, especially where disconnect / reconnect are
 	 * supported, our host also has an ID on the SCSI bus.  If this is
-- 
GitLab


From 77c166b2075378ceb0955126cadc941a7c586b12 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Fri, 5 Nov 2021 13:30:52 -0700
Subject: [PATCH 0843/4878] FROMLIST: scsi: ufs: Limit the queue depth to
 host->can_queue

Before reducing 'can_queue' from 32 to 31, make
ufshcd_change_queue_depth() restrict the queue depth to 'can_queue'
instead of hba->nutrs (32). This patch includes a subset of the changes
of the patch referred to in the Link: field.

Bug: 204762899
Link: https://lore.kernel.org/linux-scsi/20211103000529.1549411-3-bvanassche@acm.org/
Change-Id: I6e694a9698f91293fc2987217e3f939726c397dd
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e2f65c8022032..b2b15c1d9c17c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4980,11 +4980,7 @@ static int ufshcd_slave_alloc(struct scsi_device *sdev)
  */
 static int ufshcd_change_queue_depth(struct scsi_device *sdev, int depth)
 {
-	struct ufs_hba *hba = shost_priv(sdev->host);
-
-	if (depth > hba->nutrs)
-		depth = hba->nutrs;
-	return scsi_change_queue_depth(sdev, depth);
+	return scsi_change_queue_depth(sdev, min(depth, sdev->host->can_queue));
 }
 
 static void ufshcd_hpb_destroy(struct ufs_hba *hba, struct scsi_device *sdev)
-- 
GitLab


From d56a3389b8685b71b01dde2f378cea05e2c8e231 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 2 Nov 2021 17:02:42 -0700
Subject: [PATCH 0844/4878] FROMLIST: scsi: ufs: Fix a deadlock in the error
 handler

The following deadlock has been observed on a test setup:
* All tags allocated.
* The SCSI error handler calls ufshcd_eh_host_reset_handler()
* ufshcd_eh_host_reset_handler() queues work that calls ufshcd_err_handler()
* ufshcd_err_handler() locks up as follows:

Workqueue: ufs_eh_wq_0 ufshcd_err_handler.cfi_jt
Call trace:
 __switch_to+0x298/0x5d8
 __schedule+0x6cc/0xa94
 schedule+0x12c/0x298
 blk_mq_get_tag+0x210/0x480
 __blk_mq_alloc_request+0x1c8/0x284
 blk_get_request+0x74/0x134
 ufshcd_exec_dev_cmd+0x68/0x640
 ufshcd_verify_dev_init+0x68/0x35c
 ufshcd_probe_hba+0x12c/0x1cb8
 ufshcd_host_reset_and_restore+0x88/0x254
 ufshcd_reset_and_restore+0xd0/0x354
 ufshcd_err_handler+0x408/0xc58
 process_one_work+0x24c/0x66c
 worker_thread+0x3e8/0xa4c
 kthread+0x150/0x1b4
 ret_from_fork+0x10/0x30

Fix this lockup by making ufshcd_exec_dev_cmd() allocate a reserved
request. This patch applies the remaining changes of the patch referred
to in the Link: field.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Bug: 204762899
Link: https://lore.kernel.org/linux-scsi/700f0463-23a9-8465-f712-1188cb884dea@acm.org/T/#u
Change-Id: I9e9ba3f45ba23ecf576380aa19701d3437af6cdd
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b2b15c1d9c17c..d593190f0fa86 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2959,12 +2959,7 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 
 	down_read(&hba->clk_scaling_lock);
 
-	/*
-	 * Get free slot, sleep if slots are unavailable.
-	 * Even though we use wait_event() which sleeps indefinitely,
-	 * the maximum wait time is bounded by SCSI request timeout.
-	 */
-	req = blk_get_request(q, REQ_OP_DRV_OUT, 0);
+	req = blk_mq_alloc_request(q, REQ_OP_DRV_OUT, BLK_MQ_REQ_RESERVED);
 	if (IS_ERR(req)) {
 		err = PTR_ERR(req);
 		goto out_unlock;
@@ -8175,7 +8170,8 @@ static struct scsi_host_template ufshcd_driver_template = {
 	.this_id		= -1,
 	.sg_tablesize		= SG_ALL,
 	.cmd_per_lun		= UFSHCD_CMD_PER_LUN,
-	.can_queue		= UFSHCD_CAN_QUEUE,
+	.can_queue		= UFSHCD_CAN_QUEUE - 1,
+	.reserved_tags		= 1,
 	.max_segment_size	= PRDT_DATA_BYTE_COUNT_MAX,
 	.max_host_blocked	= 1,
 	.track_queue_depth	= 1,
@@ -9532,8 +9528,8 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Configure LRB */
 	ufshcd_host_memory_configure(hba);
 
-	host->can_queue = hba->nutrs;
-	host->cmd_per_lun = hba->nutrs;
+	host->can_queue = hba->nutrs - 1;
+	host->cmd_per_lun = hba->nutrs - 1;
 	host->max_id = UFSHCD_MAX_ID;
 	host->max_lun = UFS_MAX_LUNS;
 	host->max_channel = UFSHCD_MAX_CHANNEL;
-- 
GitLab


From 11050481764c9115612e0eb7a4c38132d07275d1 Mon Sep 17 00:00:00 2001
From: Yunfei Wang <yf.wang@mediatek.com>
Date: Thu, 4 Nov 2021 19:10:12 +0800
Subject: [PATCH 0845/4878] FROMGIT: dma-buf: acquire name lock before
 read/write dma_buf.name
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Because dma-buf.name can be freed in func: "dma_buf_set_name",
so, we need to acquire lock first before we read/write dma_buf.name
to prevent Use After Free(UAF) issue.

Signed-off-by: Guangming Cao <Guangming.Cao@mediatek.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/lkml/20211029021541.101157-1-guangming.cao@mediatek.com/T/

Bug: 205102180
(cherry picked from commit 8c0fd126263730c35927cc8445727afb79219a19
 https://cgit.freedesktop.org/drm/drm-misc)
Change-Id: I4ba911137ad9dae7682230245d2fa2a19f7c209f
Signed-off-by: Yunfei Wang <yf.wang@mediatek.com>
---
 drivers/dma-buf/dma-buf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index d9948d58b3f4c..207153264d8bc 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1399,6 +1399,7 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused)
 		if (ret)
 			goto error_unlock;
 
+		spin_lock(&buf_obj->name_lock);
 		seq_printf(s, "%08zu\t%08x\t%08x\t%08ld\t%s\t%08lu\t%s\n",
 				buf_obj->size,
 				buf_obj->file->f_flags, buf_obj->file->f_mode,
@@ -1406,6 +1407,7 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused)
 				buf_obj->exp_name,
 				file_inode(buf_obj->file)->i_ino,
 				buf_obj->name ?: "");
+		spin_unlock(&buf_obj->name_lock);
 
 		robj = buf_obj->resv;
 		while (true) {
-- 
GitLab


From 222b9a06da78e7094deb914beffb51b10f497007 Mon Sep 17 00:00:00 2001
From: Subbaraman Narayanamurthy <quic_subbaram@quicinc.com>
Date: Fri, 3 Sep 2021 16:56:12 -0700
Subject: [PATCH 0846/4878] FROMLIST: thermal: Fix a NULL pointer dereference

of_parse_thermal_zones() parses the thermal-zones node and registers a
thermal_zone device for each subnode. However, if a thermal zone is
consuming a thermal sensor and that thermal sensor device hasn't probed
yet, an attempt to set trip_point_*_temp for that thermal zone device
can cause a NULL pointer dereference. Fix it.

 console:/sys/class/thermal/thermal_zone87 # echo 120000 > trip_point_0_temp
 ...
 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
 ...
 Call trace:
  of_thermal_set_trip_temp+0x40/0xc4
  trip_point_temp_store+0xc0/0x1dc
  dev_attr_store+0x38/0x88
  sysfs_kf_write+0x64/0xc0
  kernfs_fop_write_iter+0x108/0x1d0
  vfs_write+0x2f4/0x368
  ksys_write+0x7c/0xec
  __arm64_sys_write+0x20/0x30
  el0_svc_common.llvm.7279915941325364641+0xbc/0x1bc
  do_el0_svc+0x28/0xa0
  el0_svc+0x14/0x24
  el0_sync_handler+0x88/0xec
  el0_sync+0x1c0/0x200

While at it, fix the possible NULL pointer dereference in other
functions as well: of_thermal_get_temp(), of_thermal_set_emul_temp(),
of_thermal_get_trend().

Cc: stable@vger.kernel.org
Suggested-by: David Collins <quic_collinsd@quicinc.com>
Signed-off-by: Subbaraman Narayanamurthy <quic_subbaram@quicinc.com>

Bug: 199134856
Link: https://lore.kernel.org/linux-pm/1631041289-11804-1-git-send-email-quic_subbaram@quicinc.com/T/#u
Change-Id: I6d5108d3abc7554f91f2e98f2617162224bf0ce3
Signed-off-by: Subbaraman Narayanamurthy <quic_subbaram@quicinc.com>
---
 drivers/thermal/thermal_of.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 6379f26a335f6..9233f7e744544 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -89,7 +89,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	if (!data->ops->get_temp)
+	if (!data->ops || !data->ops->get_temp)
 		return -EINVAL;
 
 	return data->ops->get_temp(data->sensor_data, temp);
@@ -186,6 +186,9 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
 {
 	struct __thermal_zone *data = tz->devdata;
 
+	if (!data->ops || !data->ops->set_emul_temp)
+		return -EINVAL;
+
 	return data->ops->set_emul_temp(data->sensor_data, temp);
 }
 
@@ -194,7 +197,7 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	if (!data->ops->get_trend)
+	if (!data->ops || !data->ops->get_trend)
 		return -EINVAL;
 
 	return data->ops->get_trend(data->sensor_data, trip, trend);
@@ -301,7 +304,7 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
 	if (trip >= data->ntrips || trip < 0)
 		return -EDOM;
 
-	if (data->ops->set_trip_temp) {
+	if (data->ops && data->ops->set_trip_temp) {
 		int ret;
 
 		ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
-- 
GitLab


From 4e0c1040758540aac34b753ed41792c8ad322a8c Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 5 Nov 2021 15:44:18 -0700
Subject: [PATCH 0847/4878] ANDROID: fips140: use UTS_RELEASE as FIPS version

Use the standard auto-generated kernel version string instead of a
manually assigned version number that will get out-of-date.  There was
discussion of custom version numbers being needed for certification
purposes, but it appears that they won't be needed after all.

This will produce a version string like
"5.10.66-android12-9-00017-g0b8a0a4df237".

Bug: 188620248
Change-Id: Ia369e91e4a18f489418123c672686e05ca99063d
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-module.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/crypto/fips140-module.h b/crypto/fips140-module.h
index ff99d5b2ab4a1..b83547726a0ff 100644
--- a/crypto/fips140-module.h
+++ b/crypto/fips140-module.h
@@ -8,17 +8,17 @@
 
 #include <linux/completion.h>
 #include <linux/module.h>
+#include <generated/utsrelease.h>
 
 #undef pr_fmt
 #define pr_fmt(fmt) "fips140: " fmt
 
 /*
  * This is the name and version number of the module that are shown on the FIPS
- * certificate.  These don't necessarily have any relation to the filename of
- * the .ko file, or to the git branch or commit ID.
+ * certificate.
  */
 #define FIPS140_MODULE_NAME "Android Kernel Cryptographic Module"
-#define FIPS140_MODULE_VERSION "v1.0"
+#define FIPS140_MODULE_VERSION UTS_RELEASE
 
 #ifdef CONFIG_CRYPTO_FIPS140_MOD_ERROR_INJECTION
 extern char *fips140_broken_alg;
-- 
GitLab


From 8a3ff11d54dcae59018d6cf69e2f980fdc7a399d Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Mon, 1 Nov 2021 14:05:12 +0800
Subject: [PATCH 0848/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 199478662
Signed-off-by: Woody Lin <woodylin@google.com>
Change-Id: Iaf3d7ac60294804155a0984866fbd912ef9af5bc
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 22fe988859535..05167e50c3c62 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -22,6 +22,7 @@
   alloc_workqueue
   amba_driver_register
   amba_driver_unregister
+  android_debug_symbol
   android_rvh_probe_register
   anon_inode_getfd
   __arch_clear_user
-- 
GitLab


From f0670763e6abf83c6914da675f93ae81651c3c4e Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 7 Sep 2021 10:24:21 -0700
Subject: [PATCH 0849/4878] f2fs: should use GFP_NOFS for directory inodes

We use inline_dentry which requires to allocate dentry page when adding a link.
If we allow to reclaim memory from filesystem, we do down_read(&sbi->cp_rwsem)
twice by f2fs_lock_op(). I think this should be okay, but how about stopping
the lockdep complaint [1]?

f2fs_create()
 - f2fs_lock_op()
 - f2fs_do_add_link()
  - __f2fs_find_entry
   - f2fs_get_read_data_page()
   -> kswapd
    - shrink_node
     - f2fs_evict_inode
      - f2fs_lock_op()

[1]

fs_reclaim
){+.+.}-{0:0}
:
kswapd0:        lock_acquire+0x114/0x394
kswapd0:        __fs_reclaim_acquire+0x40/0x50
kswapd0:        prepare_alloc_pages+0x94/0x1ec
kswapd0:        __alloc_pages_nodemask+0x78/0x1b0
kswapd0:        pagecache_get_page+0x2e0/0x57c
kswapd0:        f2fs_get_read_data_page+0xc0/0x394
kswapd0:        f2fs_find_data_page+0xa4/0x23c
kswapd0:        find_in_level+0x1a8/0x36c
kswapd0:        __f2fs_find_entry+0x70/0x100
kswapd0:        f2fs_do_add_link+0x84/0x1ec
kswapd0:        f2fs_mkdir+0xe4/0x1e4
kswapd0:        vfs_mkdir+0x110/0x1c0
kswapd0:        do_mkdirat+0xa4/0x160
kswapd0:        __arm64_sys_mkdirat+0x24/0x34
kswapd0:        el0_svc_common.llvm.17258447499513131576+0xc4/0x1e8
kswapd0:        do_el0_svc+0x28/0xa0
kswapd0:        el0_svc+0x24/0x38
kswapd0:        el0_sync_handler+0x88/0xec
kswapd0:        el0_sync+0x1c0/0x200
kswapd0:
-> #1
(
&sbi->cp_rwsem
){++++}-{3:3}
:
kswapd0:        lock_acquire+0x114/0x394
kswapd0:        down_read+0x7c/0x98
kswapd0:        f2fs_do_truncate_blocks+0x78/0x3dc
kswapd0:        f2fs_truncate+0xc8/0x128
kswapd0:        f2fs_evict_inode+0x2b8/0x8b8
kswapd0:        evict+0xd4/0x2f8
kswapd0:        iput+0x1c0/0x258
kswapd0:        do_unlinkat+0x170/0x2a0
kswapd0:        __arm64_sys_unlinkat+0x4c/0x68
kswapd0:        el0_svc_common.llvm.17258447499513131576+0xc4/0x1e8
kswapd0:        do_el0_svc+0x28/0xa0
kswapd0:        el0_svc+0x24/0x38
kswapd0:        el0_sync_handler+0x88/0xec
kswapd0:        el0_sync+0x1c0/0x200

Cc: stable@vger.kernel.org
Fixes: bdbc90fa55af ("f2fs: don't put dentry page in pagecache into highmem")
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Light Hsieh <light.hsieh@mediatek.com>
Tested-by: Light Hsieh <light.hsieh@mediatek.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/inode.c | 2 +-
 fs/f2fs/namei.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 9141147b5bb00..1213f15ffd68c 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -527,7 +527,7 @@ make_now:
 		inode->i_op = &f2fs_dir_inode_operations;
 		inode->i_fop = &f2fs_dir_operations;
 		inode->i_mapping->a_ops = &f2fs_dblock_aops;
-		inode_nohighmem(inode);
+		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 	} else if (S_ISLNK(inode->i_mode)) {
 		if (file_is_encrypt(inode))
 			inode->i_op = &f2fs_encrypted_symlink_inode_operations;
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 7b0f7060c19c2..abeb30a425d9e 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -757,7 +757,7 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	inode->i_op = &f2fs_dir_inode_operations;
 	inode->i_fop = &f2fs_dir_operations;
 	inode->i_mapping->a_ops = &f2fs_dblock_aops;
-	inode_nohighmem(inode);
+	mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 
 	set_inode_flag(inode, FI_INC_LINK);
 	f2fs_lock_op(sbi);
-- 
GitLab


From 8469d15f5006c1effc9e7398f4bc4df30b918d33 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 3 Sep 2021 10:38:11 +0800
Subject: [PATCH 0850/4878] f2fs: quota: fix potential deadlock

As Yi Zhuang reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=214299

There is potential deadlock during quota data flush as below:

Thread A:			Thread B:
f2fs_dquot_acquire
down_read(&sbi->quota_sem)
				f2fs_write_checkpoint
				block_operations
				f2fs_look_all
				down_write(&sbi->cp_rwsem)
f2fs_quota_write
f2fs_write_begin
__do_map_lock
f2fs_lock_op
down_read(&sbi->cp_rwsem)
				__need_flush_qutoa
				down_write(&sbi->quota_sem)

This patch changes block_operations() to use trylock, if it fails,
it means there is potential quota data updater, in this condition,
let's flush quota data first and then trylock again to check dirty
status of quota data.

The side effect is: in heavy race condition (e.g. multi quota data
upaters vs quota data flusher), it may decrease the probability of
synchronizing quota data successfully in checkpoint() due to limited
retry time of quota flush.

Reported-by: Yi Zhuang <zhuangyi1@huawei.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 0b3b1b53b356b..e34d60becafc6 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1162,7 +1162,8 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	if (!is_journalled_quota(sbi))
 		return false;
 
-	down_write(&sbi->quota_sem);
+	if (!down_write_trylock(&sbi->quota_sem))
+		return true;
 	if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) {
 		ret = false;
 	} else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) {
-- 
GitLab


From 34dac742e9a1e97d931c90232fd9c8f2c1c55154 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Wed, 1 Sep 2021 16:06:21 +0800
Subject: [PATCH 0851/4878] f2fs: avoid attaching SB_ACTIVE flag during mount

Quoted from [1]

"I do remember that I've added this code back then because otherwise
orphan cleanup was losing updates to quota files. But you're right
that now I don't see how that could be happening and it would be nice
if we could get rid of this hack"

[1] https://lore.kernel.org/linux-ext4/99cce8ca-e4a0-7301-840f-2ace67c551f3@huawei.com/T/#m04990cfbc4f44592421736b504afcc346b2a7c00

Related fix in ext4 by
commit 72ffb49a7b62 ("ext4: do not set SB_ACTIVE in ext4_orphan_cleanup()").

f2fs has the same hack implementation in
- f2fs_recover_orphan_inodes()
- f2fs_recover_fsync_data()

Let's get rid of this hack as well in f2fs.

Cc: Zhang Yi <yi.zhang@huawei.com>
Cc: Jan Kara <jack@suse.cz>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 3 ---
 fs/f2fs/recovery.c   | 8 ++------
 2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index e34d60becafc6..e4d2ec540b08d 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -705,9 +705,6 @@ int f2fs_recover_orphan_inodes(struct f2fs_sb_info *sbi)
 	}
 
 #ifdef CONFIG_QUOTA
-	/* Needed for iput() to work correctly and not trash data */
-	sbi->sb->s_flags |= SB_ACTIVE;
-
 	/*
 	 * Turn on quotas which were not enabled for read-only mounts if
 	 * filesystem has quota feature, so that they are updated correctly.
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 04655511d7f51..706ddb3c95c02 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -787,8 +787,6 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
 	}
 
 #ifdef CONFIG_QUOTA
-	/* Needed for iput() to work correctly and not trash data */
-	sbi->sb->s_flags |= SB_ACTIVE;
 	/* Turn on quotas so that they are updated correctly */
 	quota_enabled = f2fs_enable_quota_files(sbi, s_flags & SB_RDONLY);
 #endif
@@ -816,10 +814,8 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
 	err = recover_data(sbi, &inode_list, &tmp_inode_list, &dir_list);
 	if (!err)
 		f2fs_bug_on(sbi, !list_empty(&inode_list));
-	else {
-		/* restore s_flags to let iput() trash data */
-		sbi->sb->s_flags = s_flags;
-	}
+	else
+		f2fs_bug_on(sbi, sbi->sb->s_flags & SB_ACTIVE);
 skip:
 	fix_curseg_write_pointer = !check_only || list_empty(&inode_list);
 
-- 
GitLab


From c4670e57eb02c66aea480cff6753834415e39262 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 16 Sep 2021 17:09:03 +0800
Subject: [PATCH 0852/4878] f2fs: introduce excess_dirty_threshold()

This patch enables f2fs_balance_fs_bg() to check all metadatas' dirty
threshold rather than just checking node block's, so that checkpoint()
from background can be triggered more frequently to avoid heaping up
too much dirty metadatas.

Threshold value by default:
race with foreground ops	single type	global
No				16MB		24MB
Yes				24MB		36MB

In addtion, let f2fs_balance_fs_bg() be aware of roll-forward sapce
as well as fsync().

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/f2fs.h    |  3 +++
 fs/f2fs/node.h    |  5 -----
 fs/f2fs/segment.c | 23 +++++++++++++++++++++--
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 293f598decee0..9db97432ef918 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -561,6 +561,9 @@ enum {
 
 #define MAX_DIR_RA_PAGES	4	/* maximum ra pages of dir */
 
+/* dirty segments threshold for triggering CP */
+#define DEFAULT_DIRTY_THRESHOLD		4
+
 /* for in-memory extent cache entry */
 #define F2FS_MIN_EXTENT_LEN	64	/* minimum extent length */
 
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index ff14a6e5ac1c9..18b98cf0465b8 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -138,11 +138,6 @@ static inline bool excess_cached_nats(struct f2fs_sb_info *sbi)
 	return NM_I(sbi)->nat_cnt[TOTAL_NAT] >= DEF_NAT_CACHE_THRESHOLD;
 }
 
-static inline bool excess_dirty_nodes(struct f2fs_sb_info *sbi)
-{
-	return get_pages(sbi, F2FS_DIRTY_NODES) >= sbi->blocks_per_seg * 8;
-}
-
 enum mem_type {
 	FREE_NIDS,	/* indicates the free nid list */
 	NAT_ENTRIES,	/* indicates the cached nat entry */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 3f6a58a46e8bd..8fb60f3ad1eb5 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -529,6 +529,25 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 	}
 }
 
+static inline bool excess_dirty_threshold(struct f2fs_sb_info *sbi)
+{
+	int factor = rwsem_is_locked(&sbi->cp_rwsem) ? 3 : 2;
+	unsigned int dents = get_pages(sbi, F2FS_DIRTY_DENTS);
+	unsigned int qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
+	unsigned int nodes = get_pages(sbi, F2FS_DIRTY_NODES);
+	unsigned int meta = get_pages(sbi, F2FS_DIRTY_META);
+	unsigned int imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
+	unsigned int threshold = sbi->blocks_per_seg * factor *
+					DEFAULT_DIRTY_THRESHOLD;
+	unsigned int global_threshold = threshold * 3 / 2;
+
+	if (dents >= threshold || qdata >= threshold ||
+		nodes >= threshold || meta >= threshold ||
+		imeta >= threshold)
+		return true;
+	return dents + qdata + nodes + meta + imeta >  global_threshold;
+}
+
 void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
 {
 	if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
@@ -547,8 +566,8 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
 	else
 		f2fs_build_free_nids(sbi, false, false);
 
-	if (excess_dirty_nats(sbi) || excess_dirty_nodes(sbi) ||
-		excess_prefree_segs(sbi))
+	if (excess_dirty_nats(sbi) || excess_dirty_threshold(sbi) ||
+		excess_prefree_segs(sbi) || !f2fs_space_for_roll_forward(sbi))
 		goto do_sync;
 
 	/* there is background inflight IO or foreground operation recently */
-- 
GitLab


From 7d8f1ae0c9d065935b5d03e7d13a1157015c61e1 Mon Sep 17 00:00:00 2001
From: Weichao Guo <guoweichao@oppo.com>
Date: Sat, 18 Sep 2021 20:46:36 +0800
Subject: [PATCH 0853/4878] f2fs: set SBI_NEED_FSCK flag when inconsistent node
 block found

Inconsistent node block will cause a file fail to open or read,
which could make the user process crashes or stucks. Let's mark
SBI_NEED_FSCK flag to trigger a fix at next fsck time. After
unlinking the corrupted file, the user process could regenerate
a new one and work correctly.

Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/node.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index e863136081b47..556fcd8457f3f 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1443,6 +1443,7 @@ page_hit:
 			  nid, nid_of_node(page), ino_of_node(page),
 			  ofs_of_node(page), cpver_of_node(page),
 			  next_blkaddr_of_node(page));
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		err = -EINVAL;
 out_err:
 		ClearPageUptodate(page);
-- 
GitLab


From c6ad2610362a1fc7ee0604fd9f66fb601d457b6c Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Tue, 21 Sep 2021 22:37:30 +0800
Subject: [PATCH 0854/4878] f2fs: fix up f2fs_lookup tracepoints

Fix up a misuse that the filename pointer isn't always valid in
the ring buffer, and we should copy the content instead.

Fixes: 0c5e36db17f5 ("f2fs: trace f2fs_lookup")
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 include/trace/events/f2fs.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 4e881d91c8744..4cb055af1ec0b 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -807,20 +807,20 @@ TRACE_EVENT(f2fs_lookup_start,
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(const char *,	name)
+		__string(name,	dentry->d_name.name)
 		__field(unsigned int, flags)
 	),
 
 	TP_fast_assign(
 		__entry->dev	= dir->i_sb->s_dev;
 		__entry->ino	= dir->i_ino;
-		__entry->name	= dentry->d_name.name;
+		__assign_str(name, dentry->d_name.name);
 		__entry->flags	= flags;
 	),
 
 	TP_printk("dev = (%d,%d), pino = %lu, name:%s, flags:%u",
 		show_dev_ino(__entry),
-		__entry->name,
+		__get_str(name),
 		__entry->flags)
 );
 
@@ -834,7 +834,7 @@ TRACE_EVENT(f2fs_lookup_end,
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(const char *,	name)
+		__string(name,	dentry->d_name.name)
 		__field(nid_t,	cino)
 		__field(int,	err)
 	),
@@ -842,14 +842,14 @@ TRACE_EVENT(f2fs_lookup_end,
 	TP_fast_assign(
 		__entry->dev	= dir->i_sb->s_dev;
 		__entry->ino	= dir->i_ino;
-		__entry->name	= dentry->d_name.name;
+		__assign_str(name, dentry->d_name.name);
 		__entry->cino	= ino;
 		__entry->err	= err;
 	),
 
 	TP_printk("dev = (%d,%d), pino = %lu, name:%s, ino:%u, err:%d",
 		show_dev_ino(__entry),
-		__entry->name,
+		__get_str(name),
 		__entry->cino,
 		__entry->err)
 );
-- 
GitLab


From 922ca94f6b006048d744719233a78000e6f92e95 Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Mon, 27 Sep 2021 15:06:48 +0900
Subject: [PATCH 0855/4878] f2fs: fix to use WHINT_MODE

Since active_logs can be set to 2 or 4 or NR_CURSEG_PERSIST_TYPE(6),
it cannot be set to NR_CURSEG_TYPE(8).
That is, whint_mode is always off.

Therefore, the condition is changed from NR_CURSEG_TYPE to NR_CURSEG_PERSIST_TYPE.

Cc: Chao Yu <chao@kernel.org>
Fixes: d0b9e42ab615 (f2fs: introduce inmem curseg)
Reported-by: tanghuan <tanghuan@vivo.com>
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fa732d012e99b..6ee09093ee75e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1292,7 +1292,7 @@ default_check:
 	/* Not pass down write hints if the number of active logs is lesser
 	 * than NR_CURSEG_PERSIST_TYPE.
 	 */
-	if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
+	if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_PERSIST_TYPE)
 		F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
 
 	if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
-- 
GitLab


From 26385e6f510c44801c978c6ac99bcb7ac15394ed Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Wed, 29 Sep 2021 03:19:14 +0800
Subject: [PATCH 0856/4878] f2fs: fix wrong condition to trigger background
 checkpoint correctly

In f2fs_balance_fs_bg(), it needs to check both NAT_ENTRIES and INO_ENTRIES
memory usage to decide whether we should skip background checkpoint, otherwise
we may always skip checking INO_ENTRIES memory usage, so that INO_ENTRIES may
potentially cause high memory footprint.

Fixes: 493720a48543 ("f2fs: fix to avoid REQ_TIME and CP_TIME collision")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/segment.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8fb60f3ad1eb5..36550ee0a92c9 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -580,7 +580,7 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
 		goto do_sync;
 
 	/* checkpoint is the only way to shrink partial cached entries */
-	if (f2fs_available_free_memory(sbi, NAT_ENTRIES) ||
+	if (f2fs_available_free_memory(sbi, NAT_ENTRIES) &&
 		f2fs_available_free_memory(sbi, INO_ENTRIES))
 		return;
 
-- 
GitLab


From 9ed55fcf323373dff1ce737426db1903f4c210dc Mon Sep 17 00:00:00 2001
From: Daeho Jeong <daehojeong@google.com>
Date: Wed, 6 Oct 2021 10:49:10 -0700
Subject: [PATCH 0857/4878] f2fs: include non-compressed blocks in
 compr_written_block

Need to include non-compressed blocks in compr_written_block to
estimate average compression ratio more accurately.

Fixes: 5ac443e26a09 ("f2fs: add sysfs nodes to get runtime compression stat")
Cc: stable@vger.kernel.org
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/compress.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index c1bf9ad4c2207..9b663eaf48057 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1530,6 +1530,7 @@ int f2fs_write_multi_pages(struct compress_ctx *cc,
 	if (cluster_may_compress(cc)) {
 		err = f2fs_compress_pages(cc);
 		if (err == -EAGAIN) {
+			add_compr_block_stat(cc->inode, cc->cluster_size);
 			goto write;
 		} else if (err) {
 			f2fs_put_rpages_wbc(cc, wbc, true, 1);
-- 
GitLab


From 26c9a7cb9d0eee8d8eb22d3770a3e0b6d18298d5 Mon Sep 17 00:00:00 2001
From: Qing Wang <wangqing@vivo.com>
Date: Tue, 12 Oct 2021 20:29:04 -0700
Subject: [PATCH 0858/4878] f2fs: replace snprintf in show functions with
 sysfs_emit

coccicheck complains about the use of snprintf() in sysfs show functions.

Fix the following coccicheck warning:
fs/f2fs/sysfs.c:198:12-20: WARNING: use scnprintf or sprintf.
fs/f2fs/sysfs.c:247:8-16: WARNING: use scnprintf or sprintf.

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Signed-off-by: Qing Wang <wangqing@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index a1a3e0f6d6582..44131314641c5 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -196,7 +196,7 @@ static ssize_t encoding_show(struct f2fs_attr *a,
 	struct super_block *sb = sbi->sb;
 
 	if (f2fs_sb_has_casefold(sbi))
-		return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
+		return sysfs_emit(buf, "%s (%d.%d.%d)\n",
 			sb->s_encoding->charset,
 			(sb->s_encoding->version >> 16) & 0xff,
 			(sb->s_encoding->version >> 8) & 0xff,
@@ -245,7 +245,7 @@ static ssize_t avg_vblocks_show(struct f2fs_attr *a,
 static ssize_t main_blkaddr_show(struct f2fs_attr *a,
 				struct f2fs_sb_info *sbi, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
+	return sysfs_emit(buf, "%llu\n",
 			(unsigned long long)MAIN_BLKADDR(sbi));
 }
 
-- 
GitLab


From 52edd213e21324deb3f4efcd579da9bf170366dd Mon Sep 17 00:00:00 2001
From: Daeho Jeong <daehojeong@google.com>
Date: Wed, 29 Sep 2021 11:12:03 -0700
Subject: [PATCH 0859/4878] f2fs: introduce fragment allocation mode mount
 option

Added two options into "mode=" mount option to make it possible for
developers to simulate filesystem fragmentation/after-GC situation
itself. The developers use these modes to understand filesystem
fragmentation/after-GC condition well, and eventually get some
insights to handle them better.

"fragment:segment": f2fs allocates a new segment in ramdom position.
		With this, we can simulate the after-GC condition.
"fragment:block" : We can scatter block allocation with
		"max_fragment_chunk" and "max_fragment_hole" sysfs
		nodes. f2fs will allocate 1..<max_fragment_chunk>
		blocks in a chunk and make a hole in the length of
		1..<max_fragment_hole> by turns	in a newly allocated
		free segment. Plus, this mode implicitly enables
		"fragment:segment" option for more randomness.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs | 16 ++++++++++++++++
 Documentation/filesystems/f2fs.rst      | 18 ++++++++++++++++++
 fs/f2fs/f2fs.h                          | 19 +++++++++++++++++--
 fs/f2fs/gc.c                            |  5 ++++-
 fs/f2fs/segment.c                       | 20 ++++++++++++++++++--
 fs/f2fs/segment.h                       |  1 +
 fs/f2fs/super.c                         | 10 ++++++++++
 fs/f2fs/sysfs.c                         | 20 ++++++++++++++++++++
 8 files changed, 104 insertions(+), 5 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 525d41af23aa9..b8e6112d19c92 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -512,3 +512,19 @@ Date:		July 2021
 Contact:	"Daeho Jeong" <daehojeong@google.com>
 Description:	You can	control the multiplier value of	bdi device readahead window size
 		between 2 (default) and 256 for POSIX_FADV_SEQUENTIAL advise option.
+
+What:		/sys/fs/f2fs/<disk>/max_fragment_chunk
+Date:		August 2021
+Contact:	"Daeho Jeong" <daehojeong@google.com>
+Description:	With "mode=fragment:block" mount options, we can scatter block allocation.
+		f2fs will allocate 1..<max_fragment_chunk> blocks in a chunk and make a hole
+		in the length of 1..<max_fragment_hole> by turns. This value can be set
+		between 1..512 and the default value is 4.
+
+What:		/sys/fs/f2fs/<disk>/max_fragment_hole
+Date:		August 2021
+Contact:	"Daeho Jeong" <daehojeong@google.com>
+Description:	With "mode=fragment:block" mount options, we can scatter block allocation.
+		f2fs will allocate 1..<max_fragment_chunk> blocks in a chunk and make a hole
+		in the length of 1..<max_fragment_hole> by turns. This value can be set
+		between 1..512 and the default value is 4.
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 09de6ebbbdfa2..4294db649fa82 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -201,6 +201,24 @@ fault_type=%d		 Support configuring fault injection type, should be
 mode=%s			 Control block allocation mode which supports "adaptive"
 			 and "lfs". In "lfs" mode, there should be no random
 			 writes towards main area.
+			 "fragment:segment" and "fragment:block" are newly added here.
+			 These are developer options for experiments to simulate filesystem
+			 fragmentation/after-GC situation itself. The developers use these
+			 modes to understand filesystem fragmentation/after-GC condition well,
+			 and eventually get some insights to handle them better.
+			 In "fragment:segment", f2fs allocates a new segment in ramdom
+			 position. With this, we can simulate the after-GC condition.
+			 In "fragment:block", we can scatter block allocation with
+			 "max_fragment_chunk" and "max_fragment_hole" sysfs nodes.
+			 We added some randomness to both chunk and hole size to make
+			 it close to realistic IO pattern. So, in this mode, f2fs will allocate
+			 1..<max_fragment_chunk> blocks in a chunk and make a hole in the
+			 length of 1..<max_fragment_hole> by turns. With this, the newly
+			 allocated blocks will be scattered throughout the whole partition.
+			 Note that "fragment:block" implicitly enables "fragment:segment"
+			 option for more randomness.
+			 Please, use these options for your experiments and we strongly
+			 recommend to re-format the filesystem after using these options.
 io_bits=%u		 Set the bit size of write IO requests. It should be set
 			 with "mode=lfs".
 usrquota		 Enable plain user disk quota accounting.
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9db97432ef918..ff8ffac0d798a 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1288,8 +1288,10 @@ enum {
 };
 
 enum {
-	FS_MODE_ADAPTIVE,	/* use both lfs/ssr allocation */
-	FS_MODE_LFS,		/* use lfs allocation only */
+	FS_MODE_ADAPTIVE,		/* use both lfs/ssr allocation */
+	FS_MODE_LFS,			/* use lfs allocation only */
+	FS_MODE_FRAGMENT_SEG,		/* segment fragmentation mode */
+	FS_MODE_FRAGMENT_BLK,		/* block fragmentation mode */
 };
 
 enum {
@@ -1760,6 +1762,9 @@ struct f2fs_sb_info {
 
 	unsigned long seq_file_ra_mul;		/* multiplier for ra_pages of seq. files in fadvise */
 
+	int max_fragment_chunk;			/* max chunk size for block fragmentation mode */
+	int max_fragment_hole;			/* max hole size for block fragmentation mode */
+
 #ifdef CONFIG_F2FS_FS_COMPRESSION
 	struct kmem_cache *page_array_slab;	/* page array entry */
 	unsigned int page_array_slab_size;	/* default page array slab size */
@@ -3516,6 +3521,16 @@ unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi,
 unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi,
 			unsigned int segno);
 
+#define DEF_FRAGMENT_SIZE	4
+#define MIN_FRAGMENT_SIZE	1
+#define MAX_FRAGMENT_SIZE	512
+
+static inline bool f2fs_need_rand_seg(struct f2fs_sb_info *sbi)
+{
+	return F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG ||
+		F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK;
+}
+
 /*
  * checkpoint.c
  */
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 77391e3b7d68f..a946ce0ead341 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/freezer.h>
 #include <linux/sched/signal.h>
+#include <linux/random.h>
 
 #include "f2fs.h"
 #include "node.h"
@@ -257,7 +258,9 @@ static void select_policy(struct f2fs_sb_info *sbi, int gc_type,
 		p->max_search = sbi->max_victim_search;
 
 	/* let's select beginning hot/small space first in no_heap mode*/
-	if (test_opt(sbi, NOHEAP) &&
+	if (f2fs_need_rand_seg(sbi))
+		p->offset = prandom_u32() % (MAIN_SECS(sbi) * sbi->segs_per_sec);
+	else if (test_opt(sbi, NOHEAP) &&
 		(type == CURSEG_HOT_DATA || IS_NODESEG(type)))
 		p->offset = 0;
 	else
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 36550ee0a92c9..448225a567723 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -15,6 +15,7 @@
 #include <linux/timer.h>
 #include <linux/freezer.h>
 #include <linux/sched/signal.h>
+#include <linux/random.h>
 
 #include "f2fs.h"
 #include "segment.h"
@@ -2649,6 +2650,8 @@ static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type)
 	unsigned short seg_type = curseg->seg_type;
 
 	sanity_check_seg_type(sbi, seg_type);
+	if (f2fs_need_rand_seg(sbi))
+		return prandom_u32() % (MAIN_SECS(sbi) * sbi->segs_per_sec);
 
 	/* if segs_per_sec is large than 1, we need to keep original policy. */
 	if (__is_large_section(sbi))
@@ -2700,6 +2703,9 @@ static void new_curseg(struct f2fs_sb_info *sbi, int type, bool new_sec)
 	curseg->next_segno = segno;
 	reset_curseg(sbi, type, 1);
 	curseg->alloc_type = LFS;
+	if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
+		curseg->fragment_remained_chunk =
+				prandom_u32() % sbi->max_fragment_chunk + 1;
 }
 
 static int __next_free_blkoff(struct f2fs_sb_info *sbi,
@@ -2726,12 +2732,22 @@ static int __next_free_blkoff(struct f2fs_sb_info *sbi,
 static void __refresh_next_blkoff(struct f2fs_sb_info *sbi,
 				struct curseg_info *seg)
 {
-	if (seg->alloc_type == SSR)
+	if (seg->alloc_type == SSR) {
 		seg->next_blkoff =
 			__next_free_blkoff(sbi, seg->segno,
 						seg->next_blkoff + 1);
-	else
+	} else {
 		seg->next_blkoff++;
+		if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK) {
+			/* To allocate block chunks in different sizes, use random number */
+			if (--seg->fragment_remained_chunk <= 0) {
+				seg->fragment_remained_chunk =
+				   prandom_u32() % sbi->max_fragment_chunk + 1;
+				seg->next_blkoff +=
+				   prandom_u32() % sbi->max_fragment_hole + 1;
+			}
+		}
+	}
 }
 
 bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno)
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index c030b44366179..355b797ab1718 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -314,6 +314,7 @@ struct curseg_info {
 	unsigned short next_blkoff;		/* next block offset to write */
 	unsigned int zone;			/* current zone number */
 	unsigned int next_segno;		/* preallocated segment */
+	int fragment_remained_chunk;		/* remained block size in a chunk for block fragmentation mode */
 	bool inited;				/* indicate inmem log is inited */
 };
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 6ee09093ee75e..d4afbd8369dd8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -817,6 +817,10 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
 				F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
 			} else if (!strcmp(name, "lfs")) {
 				F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
+			} else if (!strcmp(name, "fragment:segment")) {
+				F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_SEG;
+			} else if (!strcmp(name, "fragment:block")) {
+				F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_BLK;
 			} else {
 				kfree(name);
 				return -EINVAL;
@@ -1900,6 +1904,10 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 		seq_puts(seq, "adaptive");
 	else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
 		seq_puts(seq, "lfs");
+	else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG)
+		seq_puts(seq, "fragment:segment");
+	else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
+		seq_puts(seq, "fragment:block");
 	seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
 	if (test_opt(sbi, RESERVE_ROOT))
 		seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
@@ -3527,6 +3535,8 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
 	sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
 	sbi->migration_granularity = sbi->segs_per_sec;
 	sbi->seq_file_ra_mul = MIN_RA_MUL;
+	sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE;
+	sbi->max_fragment_hole = DEF_FRAGMENT_SIZE;
 
 	sbi->dir_level = DEF_DIR_LEVEL;
 	sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 44131314641c5..f64ecc30f4640 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -551,6 +551,22 @@ out:
 		return count;
 	}
 
+	if (!strcmp(a->attr.name, "max_fragment_chunk")) {
+		if (t >= MIN_FRAGMENT_SIZE && t <= MAX_FRAGMENT_SIZE)
+			sbi->max_fragment_chunk = t;
+		else
+			return -EINVAL;
+		return count;
+	}
+
+	if (!strcmp(a->attr.name, "max_fragment_hole")) {
+		if (t >= MIN_FRAGMENT_SIZE && t <= MAX_FRAGMENT_SIZE)
+			sbi->max_fragment_hole = t;
+		else
+			return -EINVAL;
+		return count;
+	}
+
 	*ui = (unsigned int)t;
 
 	return count;
@@ -781,6 +797,8 @@ F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, seq_file_ra_mul, seq_file_ra_mul);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_segment_mode, gc_segment_mode);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_reclaimed_segments, gc_reclaimed_segs);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_fragment_chunk, max_fragment_chunk);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_fragment_hole, max_fragment_hole);
 
 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
 static struct attribute *f2fs_attrs[] = {
@@ -859,6 +877,8 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(seq_file_ra_mul),
 	ATTR_LIST(gc_segment_mode),
 	ATTR_LIST(gc_reclaimed_segments),
+	ATTR_LIST(max_fragment_chunk),
+	ATTR_LIST(max_fragment_hole),
 	NULL,
 };
 ATTRIBUTE_GROUPS(f2fs);
-- 
GitLab


From 315124b9bc2193e10e26cf6a0234c664ee4e3cb2 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Wed, 1 Sep 2021 14:39:20 +0800
Subject: [PATCH 0860/4878] f2fs: multidevice: support direct IO

Commit 3c62be17d4f5 ("f2fs: support multiple devices") missed
to support direct IO for multiple device feature, this patch
adds to support the missing part of multidevice feature.

In addition, for multiple device image, we should be aware of
any issued direct write IO rather than just buffered write IO,
so that fsync and syncfs can issue a preflush command to the
device where direct write IO goes, to persist user data for
posix compliant.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c              | 57 +++++++++++++++++++++++++++++++++++--
 fs/f2fs/f2fs.h              | 25 ++++++++++++++--
 fs/f2fs/segment.c           | 35 ++++++++++++++---------
 fs/f2fs/super.c             |  7 +++++
 include/trace/events/f2fs.h | 21 ++++++++++----
 5 files changed, 120 insertions(+), 25 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 8c250a2f237bf..9c6abd880d7e4 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1475,10 +1475,15 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 	struct extent_info ei = {0, };
 	block_t blkaddr;
 	unsigned int start_pgofs;
+	int bidx = 0;
 
 	if (!maxblocks)
 		return 0;
 
+	map->m_bdev = inode->i_sb->s_bdev;
+	map->m_multidev_dio =
+		f2fs_allow_multi_device_dio(F2FS_I_SB(inode), flag);
+
 	map->m_len = 0;
 	map->m_flags = 0;
 
@@ -1501,6 +1506,21 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 		if (flag == F2FS_GET_BLOCK_DIO)
 			f2fs_wait_on_block_writeback_range(inode,
 						map->m_pblk, map->m_len);
+
+		if (map->m_multidev_dio) {
+			block_t blk_addr = map->m_pblk;
+
+			bidx = f2fs_target_device_index(sbi, map->m_pblk);
+
+			map->m_bdev = FDEV(bidx).bdev;
+			map->m_pblk -= FDEV(bidx).start_blk;
+			map->m_len = min(map->m_len,
+				FDEV(bidx).end_blk + 1 - map->m_pblk);
+
+			if (map->m_may_create)
+				f2fs_update_device_state(sbi, inode->i_ino,
+							blk_addr, map->m_len);
+		}
 		goto out;
 	}
 
@@ -1619,6 +1639,9 @@ next_block:
 	if (flag == F2FS_GET_BLOCK_PRE_AIO)
 		goto skip;
 
+	if (map->m_multidev_dio)
+		bidx = f2fs_target_device_index(sbi, blkaddr);
+
 	if (map->m_len == 0) {
 		/* preallocated unwritten block should be mapped for fiemap. */
 		if (blkaddr == NEW_ADDR)
@@ -1627,10 +1650,15 @@ next_block:
 
 		map->m_pblk = blkaddr;
 		map->m_len = 1;
+
+		if (map->m_multidev_dio)
+			map->m_bdev = FDEV(bidx).bdev;
 	} else if ((map->m_pblk != NEW_ADDR &&
 			blkaddr == (map->m_pblk + ofs)) ||
 			(map->m_pblk == NEW_ADDR && blkaddr == NEW_ADDR) ||
 			flag == F2FS_GET_BLOCK_PRE_DIO) {
+		if (map->m_multidev_dio && map->m_bdev != FDEV(bidx).bdev)
+			goto sync_out;
 		ofs++;
 		map->m_len++;
 	} else {
@@ -1683,11 +1711,31 @@ skip:
 
 sync_out:
 
-	/* for hardware encryption, but to avoid potential issue in future */
-	if (flag == F2FS_GET_BLOCK_DIO && map->m_flags & F2FS_MAP_MAPPED)
+	if (flag == F2FS_GET_BLOCK_DIO && map->m_flags & F2FS_MAP_MAPPED) {
+		/*
+		 * for hardware encryption, but to avoid potential issue
+		 * in future
+		 */
 		f2fs_wait_on_block_writeback_range(inode,
 						map->m_pblk, map->m_len);
 
+		if (map->m_multidev_dio) {
+			block_t blk_addr = map->m_pblk;
+
+			bidx = f2fs_target_device_index(sbi, map->m_pblk);
+
+			map->m_bdev = FDEV(bidx).bdev;
+			map->m_pblk -= FDEV(bidx).start_blk;
+
+			if (map->m_may_create)
+				f2fs_update_device_state(sbi, inode->i_ino,
+							blk_addr, map->m_len);
+
+			f2fs_bug_on(sbi, blk_addr + map->m_len >
+						FDEV(bidx).end_blk + 1);
+		}
+	}
+
 	if (flag == F2FS_GET_BLOCK_PRECACHE) {
 		if (map->m_flags & F2FS_MAP_MAPPED) {
 			unsigned int ofs = start_pgofs - map->m_lblk;
@@ -1706,7 +1754,7 @@ unlock_out:
 		f2fs_balance_fs(sbi, dn.node_changed);
 	}
 out:
-	trace_f2fs_map_blocks(inode, map, err);
+	trace_f2fs_map_blocks(inode, map, create, flag, err);
 	return err;
 }
 
@@ -1765,6 +1813,9 @@ static int __get_data_block(struct inode *inode, sector_t iblock,
 		map_bh(bh, inode->i_sb, map.m_pblk);
 		bh->b_state = (bh->b_state & ~F2FS_MAP_FLAGS) | map.m_flags;
 		bh->b_size = blks_to_bytes(inode, map.m_len);
+
+		if (map.m_multidev_dio)
+			bh->b_bdev = map.m_bdev;
 	}
 	return err;
 }
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ff8ffac0d798a..4b3534f9cc878 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -620,6 +620,7 @@ struct extent_tree {
 				F2FS_MAP_UNWRITTEN)
 
 struct f2fs_map_blocks {
+	struct block_device *m_bdev;	/* for multi-device dio */
 	block_t m_pblk;
 	block_t m_lblk;
 	unsigned int m_len;
@@ -628,6 +629,7 @@ struct f2fs_map_blocks {
 	pgoff_t *m_next_extent;		/* point to next possible extent */
 	int m_seg_type;
 	bool m_may_create;		/* indicate it is from write path */
+	bool m_multidev_dio;		/* indicate it allows multi-device dio */
 };
 
 /* for flag in get_data_block */
@@ -1734,12 +1736,15 @@ struct f2fs_sb_info {
 
 	/* For shrinker support */
 	struct list_head s_list;
+	struct mutex umount_mutex;
+	unsigned int shrinker_run_no;
+
+	/* For multi devices */
 	int s_ndevs;				/* number of devices */
 	struct f2fs_dev_info *devs;		/* for device list */
 	unsigned int dirty_device;		/* for checkpoint data flush */
 	spinlock_t dev_lock;			/* protect dirty_device */
-	struct mutex umount_mutex;
-	unsigned int shrinker_run_no;
+	bool aligned_blksize;			/* all devices has the same logical blksize */
 
 	/* For write statistics */
 	u64 sectors_written_start;
@@ -3497,6 +3502,8 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 			block_t old_blkaddr, block_t *new_blkaddr,
 			struct f2fs_summary *sum, int type,
 			struct f2fs_io_info *fio);
+void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
+					block_t blkaddr, unsigned int blkcnt);
 void f2fs_wait_on_page_writeback(struct page *page,
 			enum page_type type, bool ordered, bool locked);
 void f2fs_wait_on_block_writeback(struct inode *inode, block_t blkaddr);
@@ -4317,6 +4324,16 @@ static inline int block_unaligned_IO(struct inode *inode,
 	return align & blocksize_mask;
 }
 
+static inline bool f2fs_allow_multi_device_dio(struct f2fs_sb_info *sbi,
+								int flag)
+{
+	if (!f2fs_is_multi_device(sbi))
+		return false;
+	if (flag != F2FS_GET_BLOCK_DIO)
+		return false;
+	return sbi->aligned_blksize;
+}
+
 static inline bool f2fs_force_buffered_io(struct inode *inode,
 				struct kiocb *iocb, struct iov_iter *iter)
 {
@@ -4325,7 +4342,9 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
 
 	if (f2fs_post_read_required(inode))
 		return true;
-	if (f2fs_is_multi_device(sbi))
+
+	/* disallow direct IO if any of devices has unaligned blksize */
+	if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
 		return true;
 	/*
 	 * for blkzoned device, fallback direct IO to buffered IO, so
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 448225a567723..8413521259163 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -3520,24 +3520,30 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	up_read(&SM_I(sbi)->curseg_lock);
 }
 
-static void update_device_state(struct f2fs_io_info *fio)
+void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
+					block_t blkaddr, unsigned int blkcnt)
 {
-	struct f2fs_sb_info *sbi = fio->sbi;
-	unsigned int devidx;
-
 	if (!f2fs_is_multi_device(sbi))
 		return;
 
-	devidx = f2fs_target_device_index(sbi, fio->new_blkaddr);
+	while (1) {
+		unsigned int devidx = f2fs_target_device_index(sbi, blkaddr);
+		unsigned int blks = FDEV(devidx).end_blk - blkaddr + 1;
 
-	/* update device state for fsync */
-	f2fs_set_dirty_device(sbi, fio->ino, devidx, FLUSH_INO);
+		/* update device state for fsync */
+		f2fs_set_dirty_device(sbi, ino, devidx, FLUSH_INO);
 
-	/* update device state for checkpoint */
-	if (!f2fs_test_bit(devidx, (char *)&sbi->dirty_device)) {
-		spin_lock(&sbi->dev_lock);
-		f2fs_set_bit(devidx, (char *)&sbi->dirty_device);
-		spin_unlock(&sbi->dev_lock);
+		/* update device state for checkpoint */
+		if (!f2fs_test_bit(devidx, (char *)&sbi->dirty_device)) {
+			spin_lock(&sbi->dev_lock);
+			f2fs_set_bit(devidx, (char *)&sbi->dirty_device);
+			spin_unlock(&sbi->dev_lock);
+		}
+
+		if (blkcnt <= blks)
+			break;
+		blkcnt -= blks;
+		blkaddr += blks;
 	}
 }
 
@@ -3564,7 +3570,7 @@ reallocate:
 		goto reallocate;
 	}
 
-	update_device_state(fio);
+	f2fs_update_device_state(fio->sbi, fio->ino, fio->new_blkaddr, 1);
 
 	if (keep_order)
 		up_read(&fio->sbi->io_order_lock);
@@ -3653,7 +3659,8 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
 	else
 		err = f2fs_submit_page_bio(fio);
 	if (!err) {
-		update_device_state(fio);
+		f2fs_update_device_state(fio->sbi, fio->ino,
+						fio->new_blkaddr, 1);
 		f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE);
 	}
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index d4afbd8369dd8..56873e4f4f351 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3761,6 +3761,7 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
 	unsigned int max_devices = MAX_DEVICES;
+	unsigned int logical_blksize;
 	int i;
 
 	/* Initialize single device information */
@@ -3781,6 +3782,9 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
 	if (!sbi->devs)
 		return -ENOMEM;
 
+	logical_blksize = bdev_logical_block_size(sbi->sb->s_bdev);
+	sbi->aligned_blksize = true;
+
 	for (i = 0; i < max_devices; i++) {
 
 		if (i > 0 && !RDEV(i).path[0])
@@ -3817,6 +3821,9 @@ static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
 		/* to release errored devices */
 		sbi->s_ndevs = i + 1;
 
+		if (logical_blksize != bdev_logical_block_size(FDEV(i).bdev))
+			sbi->aligned_blksize = false;
+
 #ifdef CONFIG_BLK_DEV_ZONED
 		if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
 				!f2fs_sb_has_blkzoned(sbi)) {
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 4cb055af1ec0b..f8cb916f35958 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -570,9 +570,10 @@ TRACE_EVENT(f2fs_file_write_iter,
 );
 
 TRACE_EVENT(f2fs_map_blocks,
-	TP_PROTO(struct inode *inode, struct f2fs_map_blocks *map, int ret),
+	TP_PROTO(struct inode *inode, struct f2fs_map_blocks *map,
+				int create, int flag, int ret),
 
-	TP_ARGS(inode, map, ret),
+	TP_ARGS(inode, map, create, flag, ret),
 
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
@@ -583,11 +584,14 @@ TRACE_EVENT(f2fs_map_blocks,
 		__field(unsigned int,	m_flags)
 		__field(int,	m_seg_type)
 		__field(bool,	m_may_create)
+		__field(bool,	m_multidev_dio)
+		__field(int,	create)
+		__field(int,	flag)
 		__field(int,	ret)
 	),
 
 	TP_fast_assign(
-		__entry->dev		= inode->i_sb->s_dev;
+		__entry->dev		= map->m_bdev->bd_dev;
 		__entry->ino		= inode->i_ino;
 		__entry->m_lblk		= map->m_lblk;
 		__entry->m_pblk		= map->m_pblk;
@@ -595,12 +599,16 @@ TRACE_EVENT(f2fs_map_blocks,
 		__entry->m_flags	= map->m_flags;
 		__entry->m_seg_type	= map->m_seg_type;
 		__entry->m_may_create	= map->m_may_create;
+		__entry->m_multidev_dio	= map->m_multidev_dio;
+		__entry->create		= create;
+		__entry->flag		= flag;
 		__entry->ret		= ret;
 	),
 
 	TP_printk("dev = (%d,%d), ino = %lu, file offset = %llu, "
-		"start blkaddr = 0x%llx, len = 0x%llx, flags = %u,"
-		"seg_type = %d, may_create = %d, err = %d",
+		"start blkaddr = 0x%llx, len = 0x%llx, flags = %u, "
+		"seg_type = %d, may_create = %d, multidevice = %d, "
+		"create = %d, flag = %d, err = %d",
 		show_dev_ino(__entry),
 		(unsigned long long)__entry->m_lblk,
 		(unsigned long long)__entry->m_pblk,
@@ -608,6 +616,9 @@ TRACE_EVENT(f2fs_map_blocks,
 		__entry->m_flags,
 		__entry->m_seg_type,
 		__entry->m_may_create,
+		__entry->m_multidev_dio,
+		__entry->create,
+		__entry->flag,
 		__entry->ret)
 );
 
-- 
GitLab


From e421f58de2033b33ca8599b09adacd7f8b7af62d Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Fri, 22 Oct 2021 20:08:00 -0700
Subject: [PATCH 0861/4878] f2fs: compress: fix overwrite may reduce compress
 ratio unproperly

when overwrite only first block of cluster, since cluster is not full, it
will call f2fs_write_raw_pages when f2fs_write_multi_pages, and cause the
whole cluster become uncompressed eventhough data can be compressed.
this may will make random write bench score reduce a lot.

root# dd if=/dev/zero of=./fio-test bs=1M count=1

root# sync

root# echo 3 > /proc/sys/vm/drop_caches

root# f2fs_io get_cblocks ./fio-test

root# dd if=/dev/zero of=./fio-test bs=4K count=1 oflag=direct conv=notrunc

w/o patch:
root# f2fs_io get_cblocks ./fio-test
189

w/ patch:
root# f2fs_io get_cblocks ./fio-test
192

Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/compress.c | 19 +++++++++++++++++++
 fs/f2fs/data.c     | 36 ++++++++++++++++++------------------
 fs/f2fs/f2fs.h     |  2 ++
 3 files changed, 39 insertions(+), 18 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 9b663eaf48057..7588e4e817b89 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -881,6 +881,25 @@ bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index)
 	return is_page_in_cluster(cc, index);
 }
 
+bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
+				int index, int nr_pages)
+{
+	unsigned long pgidx;
+	int i;
+
+	if (nr_pages - index < cc->cluster_size)
+		return false;
+
+	pgidx = pvec->pages[index]->index;
+
+	for (i = 1; i < cc->cluster_size; i++) {
+		if (pvec->pages[index + i]->index != pgidx + i)
+			return false;
+	}
+
+	return true;
+}
+
 static bool cluster_has_invalid_data(struct compress_ctx *cc)
 {
 	loff_t i_size = i_size_read(cc->inode);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 9c6abd880d7e4..49e82e2380ac9 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3050,6 +3050,10 @@ readd:
 			need_readd = false;
 #ifdef CONFIG_F2FS_FS_COMPRESSION
 			if (f2fs_compressed_file(inode)) {
+				void *fsdata = NULL;
+				struct page *pagep;
+				int ret2;
+
 				ret = f2fs_init_compress_ctx(&cc);
 				if (ret) {
 					done = 1;
@@ -3068,27 +3072,23 @@ readd:
 				if (unlikely(f2fs_cp_error(sbi)))
 					goto lock_page;
 
-				if (f2fs_cluster_is_empty(&cc)) {
-					void *fsdata = NULL;
-					struct page *pagep;
-					int ret2;
+				if (!f2fs_cluster_is_empty(&cc))
+					goto lock_page;
 
-					ret2 = f2fs_prepare_compress_overwrite(
+				ret2 = f2fs_prepare_compress_overwrite(
 							inode, &pagep,
 							page->index, &fsdata);
-					if (ret2 < 0) {
-						ret = ret2;
-						done = 1;
-						break;
-					} else if (ret2 &&
-						!f2fs_compress_write_end(inode,
-								fsdata, page->index,
-								1)) {
-						retry = 1;
-						break;
-					}
-				} else {
-					goto lock_page;
+				if (ret2 < 0) {
+					ret = ret2;
+					done = 1;
+					break;
+				} else if (ret2 &&
+					(!f2fs_compress_write_end(inode,
+						fsdata, page->index, 1) ||
+					 !f2fs_all_cluster_page_loaded(&cc,
+						&pvec, i, nr_pages))) {
+					retry = 1;
+					break;
 				}
 			}
 #endif
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4b3534f9cc878..8a11f767e6b0a 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4049,6 +4049,8 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed,
 							block_t blkaddr);
 bool f2fs_cluster_is_empty(struct compress_ctx *cc);
 bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
+bool f2fs_all_cluster_page_loaded(struct compress_ctx *cc, struct pagevec *pvec,
+				int index, int nr_pages);
 bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
 void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
 int f2fs_write_multi_pages(struct compress_ctx *cc,
-- 
GitLab


From 71a1a022288091b27f915373117e69c52400fece Mon Sep 17 00:00:00 2001
From: Hyeong-Jun Kim <hj514.kim@samsung.com>
Date: Wed, 27 Oct 2021 13:16:00 +0900
Subject: [PATCH 0862/4878] f2fs: compress: disallow disabling compress on
 non-empty compressed file

Compresse file and normal file has differ in i_addr addressing,
specifically addrs per inode/block. So, we will face data loss, if we
disable the compression flag on non-empty files. Therefore we should
disallow not only enabling but disabling the compression flag on
non-empty files.

Fixes: 4c8ff7095bef ("f2fs: support data compression")
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/f2fs.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 8a11f767e6b0a..d44fce901a703 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4176,8 +4176,7 @@ static inline bool f2fs_disable_compressed_file(struct inode *inode)
 
 	if (!f2fs_compressed_file(inode))
 		return true;
-	if (S_ISREG(inode->i_mode) &&
-		(get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks)))
+	if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
 		return false;
 
 	fi->i_flags &= ~F2FS_COMPR_FL;
-- 
GitLab


From eed99d8e62ec44a0cad91a588890ea0209ae7c52 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 28 Oct 2021 20:45:08 +0800
Subject: [PATCH 0863/4878] f2fs: fix incorrect return value in
 f2fs_sanity_check_ckpt()

As Pavel Machek reported in [1]

This code looks quite confused: part of function returns 1 on
corruption, part returns -errno. The problem is not stable-specific.

[1] https://lkml.org/lkml/2021/9/19/207

Let's fix to make 'insane cp_payload case' to return 1 rater than
EFSCORRUPTED, so that return value can be kept consistent for all
error cases, it can avoid confusion of code logic.

Fixes: 65ddf6564843 ("f2fs: fix to do sanity check for sb/cp fields correctly")
Reported-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 56873e4f4f351..56c3d639874e2 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3499,7 +3499,7 @@ skip_cross:
 		NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
 		f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
 			  cp_payload, nat_bits_blocks);
-		return -EFSCORRUPTED;
+		return 1;
 	}
 
 	if (unlikely(f2fs_cp_error(sbi))) {
-- 
GitLab


From 347e8631862589669297e7c5cb1764469b908495 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 28 Oct 2021 21:03:05 +0800
Subject: [PATCH 0864/4878] f2fs: support fault injection for
 dquot_initialize()

This patch adds a new function f2fs_dquot_initialize() to wrap
dquot_initialize(), and it supports to inject fault into
f2fs_dquot_initialize() to simulate inner failure occurs in
dquot_initialize().

Usage:
a) echo 65536 > /sys/fs/f2fs/<dev>/inject_type or
b) mount -o fault_type=65536 <dev> <mountpoint>

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/filesystems/f2fs.rst |  1 +
 fs/f2fs/checkpoint.c               |  2 +-
 fs/f2fs/f2fs.h                     |  2 ++
 fs/f2fs/file.c                     |  6 +++---
 fs/f2fs/inline.c                   |  2 +-
 fs/f2fs/inode.c                    |  2 +-
 fs/f2fs/namei.c                    | 30 +++++++++++++++---------------
 fs/f2fs/recovery.c                 |  6 +++---
 fs/f2fs/super.c                    | 16 ++++++++++++++++
 fs/f2fs/verity.c                   |  2 +-
 fs/f2fs/xattr.c                    |  2 +-
 11 files changed, 45 insertions(+), 26 deletions(-)

diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 4294db649fa82..6954c04753ad7 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -197,6 +197,7 @@ fault_type=%d		 Support configuring fault injection type, should be
 			 FAULT_DISCARD		  0x000002000
 			 FAULT_WRITE_IO		  0x000004000
 			 FAULT_SLAB_ALLOC	  0x000008000
+			 FAULT_DQUOT_INIT	  0x000010000
 			 ===================	  ===========
 mode=%s			 Control block allocation mode which supports "adaptive"
 			 and "lfs". In "lfs" mode, there should be no random
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index e4d2ec540b08d..48beee4ceb3b5 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -653,7 +653,7 @@ static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 		return PTR_ERR(inode);
 	}
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err) {
 		iput(inode);
 		goto err_out;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d44fce901a703..509afc88b0f83 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -55,6 +55,7 @@ enum {
 	FAULT_DISCARD,
 	FAULT_WRITE_IO,
 	FAULT_SLAB_ALLOC,
+	FAULT_DQUOT_INIT,
 	FAULT_MAX,
 };
 
@@ -3373,6 +3374,7 @@ static inline int f2fs_add_link(struct dentry *dentry, struct inode *inode)
  */
 int f2fs_inode_dirtied(struct inode *inode, bool sync);
 void f2fs_inode_synced(struct inode *inode);
+int f2fs_dquot_initialize(struct inode *inode);
 int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly);
 int f2fs_quota_sync(struct super_block *sb, int type);
 loff_t max_file_blocks(struct inode *inode);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 523285bc88a43..45d76a6617303 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -788,7 +788,7 @@ int f2fs_truncate(struct inode *inode)
 		return -EIO;
 	}
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		return err;
 
@@ -916,7 +916,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 		return err;
 
 	if (is_quota_modification(inode, attr)) {
-		err = dquot_initialize(inode);
+		err = f2fs_dquot_initialize(inode);
 		if (err)
 			return err;
 	}
@@ -3076,7 +3076,7 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
 	}
 	f2fs_put_page(ipage, 1);
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		return err;
 
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 56a20d5c15dad..ea08f0dfa1bdf 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -192,7 +192,7 @@ int f2fs_convert_inline_inode(struct inode *inode)
 			f2fs_hw_is_readonly(sbi) || f2fs_readonly(sbi->sb))
 		return 0;
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		return err;
 
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 1213f15ffd68c..0f8b2df3e1e01 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -754,7 +754,7 @@ void f2fs_evict_inode(struct inode *inode)
 	if (inode->i_nlink || is_bad_inode(inode))
 		goto no_delete;
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err) {
 		err = 0;
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index abeb30a425d9e..65c873a9235b1 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -74,7 +74,7 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
 	if (err)
 		goto fail_drop;
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		goto fail_drop;
 
@@ -345,7 +345,7 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 	if (!f2fs_is_checkpoint_ready(sbi))
 		return -ENOSPC;
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -404,7 +404,7 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
 			F2FS_I(old_dentry->d_inode)->i_projid)))
 		return -EXDEV;
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -461,7 +461,7 @@ static int __recover_dot_dentries(struct inode *dir, nid_t pino)
 		return 0;
 	}
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -599,10 +599,10 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 		goto fail;
 	}
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		goto fail;
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		goto fail;
 
@@ -676,7 +676,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
 	if (err)
 		return err;
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -746,7 +746,7 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	if (unlikely(f2fs_cp_error(sbi)))
 		return -EIO;
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -803,7 +803,7 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
 	if (!f2fs_is_checkpoint_ready(sbi))
 		return -ENOSPC;
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -841,7 +841,7 @@ static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
 	struct inode *inode;
 	int err;
 
-	err = dquot_initialize(dir);
+	err = f2fs_dquot_initialize(dir);
 	if (err)
 		return err;
 
@@ -964,16 +964,16 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			return err;
 	}
 
-	err = dquot_initialize(old_dir);
+	err = f2fs_dquot_initialize(old_dir);
 	if (err)
 		goto out;
 
-	err = dquot_initialize(new_dir);
+	err = f2fs_dquot_initialize(new_dir);
 	if (err)
 		goto out;
 
 	if (new_inode) {
-		err = dquot_initialize(new_inode);
+		err = f2fs_dquot_initialize(new_inode);
 		if (err)
 			goto out;
 	}
@@ -1137,11 +1137,11 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 			F2FS_I(new_dentry->d_inode)->i_projid)))
 		return -EXDEV;
 
-	err = dquot_initialize(old_dir);
+	err = f2fs_dquot_initialize(old_dir);
 	if (err)
 		goto out;
 
-	err = dquot_initialize(new_dir);
+	err = f2fs_dquot_initialize(new_dir);
 	if (err)
 		goto out;
 
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 706ddb3c95c02..6a1b4668d933a 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -81,7 +81,7 @@ static struct fsync_inode_entry *add_fsync_inode(struct f2fs_sb_info *sbi,
 	if (IS_ERR(inode))
 		return ERR_CAST(inode);
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		goto err_out;
 
@@ -203,7 +203,7 @@ retry:
 			goto out_put;
 		}
 
-		err = dquot_initialize(einode);
+		err = f2fs_dquot_initialize(einode);
 		if (err) {
 			iput(einode);
 			goto out_put;
@@ -508,7 +508,7 @@ got_it:
 		if (IS_ERR(inode))
 			return PTR_ERR(inode);
 
-		ret = dquot_initialize(inode);
+		ret = f2fs_dquot_initialize(inode);
 		if (ret) {
 			iput(inode);
 			return ret;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 56c3d639874e2..476b8407b20d1 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -58,6 +58,7 @@ const char *f2fs_fault_name[FAULT_MAX] = {
 	[FAULT_DISCARD]		= "discard error",
 	[FAULT_WRITE_IO]	= "write IO error",
 	[FAULT_SLAB_ALLOC]	= "slab alloc",
+	[FAULT_DQUOT_INIT]	= "dquot initialize",
 };
 
 void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
@@ -2503,6 +2504,16 @@ retry:
 	return len - towrite;
 }
 
+int f2fs_dquot_initialize(struct inode *inode)
+{
+	if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT)) {
+		f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_DQUOT_INIT);
+		return -ESRCH;
+	}
+
+	return dquot_initialize(inode);
+}
+
 static struct dquot **f2fs_get_dquots(struct inode *inode)
 {
 	return F2FS_I(inode)->i_dquot;
@@ -2887,6 +2898,11 @@ static const struct quotactl_ops f2fs_quotactl_ops = {
 	.get_nextdqblk	= dquot_get_next_dqblk,
 };
 #else
+int f2fs_dquot_initialize(struct inode *inode)
+{
+	return 0;
+}
+
 int f2fs_quota_sync(struct super_block *sb, int type)
 {
 	return 0;
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
index 15ba36926fad7..52c87e8fcdc3a 100644
--- a/fs/f2fs/verity.c
+++ b/fs/f2fs/verity.c
@@ -136,7 +136,7 @@ static int f2fs_begin_enable_verity(struct file *filp)
 	 * here and not rely on ->open() doing it.  This must be done before
 	 * evicting the inline data.
 	 */
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		return err;
 
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 7f59039aef850..052b51c891b5d 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -771,7 +771,7 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
 	if (!f2fs_is_checkpoint_ready(sbi))
 		return -ENOSPC;
 
-	err = dquot_initialize(inode);
+	err = f2fs_dquot_initialize(inode);
 	if (err)
 		return err;
 
-- 
GitLab


From f406d69343a6cc3edfd0fd03c83709edf46f2c74 Mon Sep 17 00:00:00 2001
From: Hyeong-Jun Kim <hj514.kim@samsung.com>
Date: Tue, 2 Nov 2021 16:10:02 +0900
Subject: [PATCH 0865/4878] f2fs: invalidate META_MAPPING before IPU/DIO write

Encrypted pages during GC are read and cached in META_MAPPING.
However, due to cached pages in META_MAPPING, there is an issue where
newly written pages are lost by IPU or DIO writes.

Thread A - f2fs_gc()            Thread B
/* phase 3 */
down_write(i_gc_rwsem)
ra_data_block()       ---- (a)
up_write(i_gc_rwsem)
                                f2fs_direct_IO() :
                                 - down_read(i_gc_rwsem)
                                 - __blockdev_direct_io()
                                 - get_data_block_dio_write()
                                 - f2fs_dio_submit_bio()  ---- (b)
                                 - up_read(i_gc_rwsem)
/* phase 4 */
down_write(i_gc_rwsem)
move_data_block()     ---- (c)
up_write(i_gc_rwsem)

(a) In phase 3 of f2fs_gc(), up-to-date page is read from storage and
    cached in META_MAPPING.
(b) In thread B, writing new data by IPU or DIO write on same blkaddr as
    read in (a). cached page in META_MAPPING become out-dated.
(c) In phase 4 of f2fs_gc(), out-dated page in META_MAPPING is copied to
    new blkaddr. In conclusion, the newly written data in (b) is lost.

To address this issue, invalidating pages in META_MAPPING before IPU or
DIO write.

Fixes: 6aa58d8ad20a ("f2fs: readahead encrypted block during GC")
Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c    | 2 ++
 fs/f2fs/segment.c | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 49e82e2380ac9..dc8add3ccf82e 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1718,6 +1718,8 @@ sync_out:
 		 */
 		f2fs_wait_on_block_writeback_range(inode,
 						map->m_pblk, map->m_len);
+		invalidate_mapping_pages(META_MAPPING(sbi),
+						map->m_pblk, map->m_pblk);
 
 		if (map->m_multidev_dio) {
 			block_t blk_addr = map->m_pblk;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8413521259163..5ebb5586a9dd9 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -3652,6 +3652,9 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
 		goto drop_bio;
 	}
 
+	invalidate_mapping_pages(META_MAPPING(sbi),
+				fio->new_blkaddr, fio->new_blkaddr);
+
 	stat_inc_inplace_blocks(fio->sbi);
 
 	if (fio->bio && !(SM_I(sbi)->ipu_policy & (1 << F2FS_IPU_NOCACHE)))
-- 
GitLab


From 90f5a0f43a05540e8f9485875874047bf4ae7faf Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Thu, 4 Nov 2021 16:22:01 +0800
Subject: [PATCH 0866/4878] f2fs: fix UAF in f2fs_available_free_memory

if2fs_fill_super
-> f2fs_build_segment_manager
   -> create_discard_cmd_control
      -> f2fs_start_discard_thread

It invokes kthread_run to create a thread and run issue_discard_thread.

However, if f2fs_build_node_manager fails, the control flow goes to
free_nm and calls f2fs_destroy_node_manager. This function will free
sbi->nm_info. However, if issue_discard_thread accesses sbi->nm_info
after the deallocation, but before the f2fs_stop_discard_thread, it will
cause UAF(Use-after-free).

-> f2fs_destroy_segment_manager
   -> destroy_discard_cmd_control
      -> f2fs_stop_discard_thread

Fix this by stopping discard thread before f2fs_destroy_node_manager.

Note that, the commit d6d2b491a82e1 introduces the call of
f2fs_available_free_memory into issue_discard_thread.

Cc: stable@vger.kernel.org
Fixes: d6d2b491a82e ("f2fs: allow to change discard policy based on cached discard cmds")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 476b8407b20d1..fcc4dfae9f70e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -4389,6 +4389,8 @@ free_node_inode:
 free_stats:
 	f2fs_destroy_stats(sbi);
 free_nm:
+	/* stop discard thread before destroying node manager */
+	f2fs_stop_discard_thread(sbi);
 	f2fs_destroy_node_manager(sbi);
 free_sm:
 	f2fs_destroy_segment_manager(sbi);
-- 
GitLab


From 57c7e0309142089e5b76462a9af9e9e9df4bf1e1 Mon Sep 17 00:00:00 2001
From: Steve Muckle <smuckle@google.com>
Date: Thu, 11 Nov 2021 00:10:22 +0000
Subject: [PATCH 0867/4878] ANDROID: GKI: update virtual device symbol list

No ABI changes expected.

Bug: 202405948
Signed-off-by: Steve Muckle <smuckle@google.com>
Change-Id: I71841af3824bfa1b659f45b0087fdf3732b39c52
---
 android/abi_gki_aarch64_virtual_device | 132 +++++--------------------
 1 file changed, 24 insertions(+), 108 deletions(-)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index c7028c2f267aa..cad33404d12b3 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -13,11 +13,7 @@
   arm64_const_caps_ready
   arm64_use_ng_mappings
   bcmp
-  bio_alloc_bioset
-  bio_endio
-  blk_alloc_queue
   blk_cleanup_queue
-  blk_queue_flag_clear
   blk_queue_flag_set
   blk_queue_io_min
   blk_queue_io_opt
@@ -25,8 +21,6 @@
   blk_queue_max_discard_sectors
   blk_queue_max_write_zeroes_sectors
   blk_queue_physical_block_size
-  blk_queue_write_cache
-  blk_status_to_errno
   bpf_trace_run2
   bpf_trace_run3
   cancel_delayed_work_sync
@@ -55,12 +49,10 @@
   cpumask_next
   cpu_number
   __cpu_online_mask
-  __cpu_possible_mask
   crypto_register_alg
   crypto_register_scomp
   crypto_unregister_alg
   crypto_unregister_scomp
-  _ctype
   debugfs_create_dir
   debugfs_create_file
   debugfs_remove
@@ -104,13 +96,10 @@
   fd_install
   finish_wait
   flush_work
-  flush_workqueue
-  fput
   free_irq
   free_netdev
   __free_pages
   free_pages
-  fs_bio_set
   get_device
   __get_free_pages
   get_random_bytes
@@ -150,21 +139,16 @@
   kmem_cache_destroy
   kmem_cache_free
   kmemdup
-  kobject_add
-  kobject_init
-  kobject_put
   kobject_uevent
   krealloc
   kstrdup
   kstrndup
-  kstrtobool
   kstrtoint
   kstrtouint
   kstrtoull
   ktime_get
   ktime_get_mono_fast_ns
   ktime_get_raw_ts64
-  ktime_get_real_seconds
   ktime_get_real_ts64
   ktime_get_ts64
   ktime_get_with_offset
@@ -249,7 +233,6 @@
   __pm_runtime_use_autosuspend
   preempt_schedule
   preempt_schedule_notrace
-  prepare_to_wait
   prepare_to_wait_event
   printk
   put_device
@@ -282,7 +265,6 @@
   regmap_read
   regmap_write
   remap_pfn_range
-  __request_module
   request_threaded_irq
   revalidate_disk_size
   rtnl_link_register
@@ -293,10 +275,8 @@
   schedule_timeout
   scnprintf
   seq_lseek
-  seq_open
   seq_printf
   seq_read
-  seq_release
   serio_close
   serio_interrupt
   serio_open
@@ -304,7 +284,6 @@
   __serio_register_driver
   __serio_register_port
   serio_unregister_driver
-  set_disk_ro
   sg_alloc_table
   sg_free_table
   sg_init_one
@@ -342,12 +321,10 @@
   strncmp
   strncpy
   strsep
-  submit_bio
   synchronize_rcu
   sysfs_create_group
   __sysfs_match_string
   sysfs_remove_group
-  sysfs_remove_link
   system_wq
   trace_event_buffer_commit
   trace_event_buffer_reserve
@@ -363,7 +340,6 @@
   __tracepoint_rwmmio_write
   trace_raw_output_prep
   trace_seq_printf
-  try_module_get
   __udelay
   unlock_page
   unregister_blkdev
@@ -610,93 +586,12 @@
   unregister_pernet_device
   wiphy_apply_custom_regulatory
 
-# required by md-mod.ko
-  ack_all_badblocks
-  alloc_page_buffers
-  _atomic_dec_and_lock
-  autoremove_wake_function
-  badblocks_clear
-  badblocks_exit
-  badblocks_init
-  badblocks_set
-  badblocks_show
-  badblocks_store
-  bdev_check_media_change
-  bdevname
-  bdev_read_only
-  bd_link_disk_holder
-  bd_unlink_disk_holder
-  bio_add_page
-  bio_associate_blkg
-  bio_put
-  bioset_exit
-  bioset_init
-  blkdev_get_by_dev
-  blkdev_put
-  blk_finish_plug
-  blk_queue_split
-  blk_register_region
-  blk_set_stacking_limits
-  blk_start_plug
-  blk_sync_queue
-  blk_unregister_region
-  bmap
-  fget
-  file_path
-  flush_signals
-  free_buffer_head
-  int_pow
-  invalidate_bdev
-  invalidate_mapping_pages
-  kernel_sigaction
-  kernfs_find_and_get_ns
-  kernfs_notify
-  kernfs_put
-  kobject_del
-  kobject_get
-  kstrtoll
-  kthread_create_on_node
-  kthread_parkme
-  kthread_should_park
-  kthread_should_stop
-  kthread_stop
-  mempool_alloc
-  mempool_create
-  mempool_destroy
-  mempool_exit
-  mempool_free
-  mempool_init
-  mempool_kfree
-  mempool_kmalloc
-  mutex_trylock
-  part_end_io_acct
-  part_start_io_acct
-  percpu_ref_exit
-  percpu_ref_init
-  percpu_ref_is_zero
-  percpu_ref_switch_to_atomic_sync
-  percpu_ref_switch_to_percpu
-  proc_create
-  proc_dointvec
-  register_reboot_notifier
-  register_sysctl_table
-  remove_proc_entry
-  seq_file_path
-  simple_strtoul
-  skip_spaces
-  strreplace
-  submit_bh
-  submit_bio_wait
-  sync_blockdev
-  sysfs_create_link
-  unregister_reboot_notifier
-  unregister_sysctl_table
-  vfs_fsync
-  wake_up_process
-
 # required by nd_virtio.ko
+  bio_alloc_bioset
   bio_chain
   bio_clone_blkg_association
+  fs_bio_set
+  submit_bio
 
 # required by net_failover.ko
   call_netdevice_notifiers
@@ -721,6 +616,7 @@
   device_create_file
   device_remove_file
   device_remove_groups
+  flush_workqueue
   i2c_adapter_type
   i2c_bus_type
   i2c_client_type
@@ -735,6 +631,7 @@
   input_mt_report_slot_state
   input_mt_sync_frame
   input_set_capability
+  kstrtobool
   kstrtou8
   pm_wakeup_dev_event
   ps2_begin_command
@@ -767,6 +664,7 @@
   add_timer
   device_init_wakeup
   devm_rtc_allocate_device
+  ktime_get_real_seconds
   platform_device_add
   platform_device_alloc
   platform_device_del
@@ -786,6 +684,7 @@
   tty_unregister_ldisc
 
 # required by snd-hda-codec-generic.ko
+  _ctype
   devm_led_classdev_register_ext
   snd_ctl_boolean_stereo_info
   strchr
@@ -804,6 +703,7 @@
   pm_runtime_forbid
   __printk_ratelimit
   regcache_mark_dirty
+  __request_module
   snd_card_rw_proc_new
   snd_component_add
   _snd_ctl_add_follower
@@ -826,6 +726,7 @@
   snd_pcm_std_chmaps
   strncat
   timecounter_read
+  try_module_get
 
 # required by snd-hda-core.ko
   add_uevent_var
@@ -834,9 +735,13 @@
   device_add
   device_del
   kasprintf
+  kobject_add
   kobject_create_and_add
+  kobject_init
+  kobject_put
   pm_runtime_get_if_active
   __pm_runtime_set_status
+  prepare_to_wait
   regcache_cache_only
   regcache_sync
   regmap_update_bits_base
@@ -906,13 +811,17 @@
   securityfs_create_dir
   securityfs_create_file
   securityfs_remove
+  seq_open
   seq_putc
+  seq_release
   seq_write
+  sysfs_remove_link
   unregister_chrdev_region
 
 # required by tpm_vtpm_proxy.ko
   anon_inode_getfile
   compat_ptr_ioctl
+  fput
 
 # required by vcan.ko
   sock_efree
@@ -1110,9 +1019,12 @@
   blk_queue_max_hw_sectors
   blk_queue_max_segments
   blk_queue_max_segment_size
+  blk_queue_write_cache
   blk_rq_map_kern
   __blk_rq_map_sg
+  blk_status_to_errno
   set_capacity_revalidate_and_notify
+  set_disk_ro
   string_get_size
   virtio_max_dma_size
 
@@ -1288,8 +1200,12 @@
   __alloc_percpu
   bdget_disk
   bdput
+  bio_endio
+  blk_alloc_queue
+  blk_queue_flag_clear
   __class_register
   class_unregister
+  __cpu_possible_mask
   crypto_alloc_base
   crypto_comp_compress
   crypto_comp_decompress
-- 
GitLab


From 8efef49b1f82d77df44b9b6c8f40a3608c49ccab Mon Sep 17 00:00:00 2001
From: Steve Muckle <smuckle@google.com>
Date: Thu, 11 Nov 2021 00:17:42 +0000
Subject: [PATCH 0868/4878] ANDROID: GKI: add required symbols for btusb to
 virtual device

Bug: 202405948
Signed-off-by: Steve Muckle <smuckle@google.com>
Change-Id: I0579827149c4eb701d0ff8eb86b2c20f00a08b84
---
 android/abi_gki_aarch64_virtual_device | 83 +++++++++++++++++++-------
 1 file changed, 63 insertions(+), 20 deletions(-)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index cad33404d12b3..23bc1cbf281b0 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -23,6 +23,9 @@
   blk_queue_physical_block_size
   bpf_trace_run2
   bpf_trace_run3
+  bt_err
+  bt_info
+  bt_warn
   cancel_delayed_work_sync
   cancel_work_sync
   capable
@@ -66,6 +69,7 @@
   device_add_disk
   device_create
   device_initialize
+  device_init_wakeup
   device_register
   device_release_driver
   device_unregister
@@ -105,6 +109,12 @@
   get_random_bytes
   get_unused_fd_flags
   gic_nonsecure_priorities
+  hci_alloc_dev
+  __hci_cmd_sync
+  hci_free_dev
+  hci_recv_frame
+  hci_register_dev
+  hci_unregister_dev
   hwrng_register
   hwrng_unregister
   ida_alloc_range
@@ -231,6 +241,7 @@
   pm_runtime_set_autosuspend_delay
   __pm_runtime_suspend
   __pm_runtime_use_autosuspend
+  pm_wakeup_dev_event
   preempt_schedule
   preempt_schedule_notrace
   prepare_to_wait_event
@@ -264,7 +275,9 @@
   __regmap_init
   regmap_read
   regmap_write
+  release_firmware
   remap_pfn_range
+  request_firmware
   request_threaded_irq
   revalidate_disk_size
   rtnl_link_register
@@ -292,6 +305,7 @@
   skb_add_rx_frag
   skb_clone
   skb_dequeue
+  skb_pull
   skb_push
   skb_put
   skb_queue_tail
@@ -350,6 +364,15 @@
   unregister_virtio_driver
   up_read
   up_write
+  usb_alloc_urb
+  usb_anchor_urb
+  usb_control_msg
+  usb_deregister
+  usb_free_urb
+  usb_kill_anchored_urbs
+  usb_register_driver
+  usb_submit_urb
+  usb_unanchor_urb
   __usecs_to_jiffies
   usleep_range
   vabits_actual
@@ -423,6 +446,46 @@
   sg_miter_start
   sg_miter_stop
 
+# required by btintel.ko
+  bt_to_errno
+  hci_cmd_sync
+  request_firmware_direct
+
+# required by btusb.ko
+  bit_wait_timeout
+  btbcm_set_bdaddr
+  btbcm_setup_apple
+  btbcm_setup_patchram
+  device_wakeup_disable
+  disable_irq
+  disable_irq_nosync
+  enable_irq
+  gpiod_get_optional
+  gpiod_put
+  gpiod_set_value_cansleep
+  __hci_cmd_sync_ev
+  hci_recv_diag
+  irq_modify_status
+  irq_set_irq_wake
+  of_irq_get_byname
+  of_match_device
+  of_property_read_variable_u16_array
+  out_of_line_wait_on_bit_timeout
+  pm_system_wakeup
+  usb_autopm_get_interface
+  usb_autopm_put_interface
+  usb_bulk_msg
+  usb_driver_claim_interface
+  usb_driver_release_interface
+  usb_enable_autosuspend
+  usb_get_from_anchor
+  usb_ifnum_to_if
+  usb_match_id
+  usb_queue_reset_device
+  usb_scuttle_anchored_urbs
+  usb_set_interface
+  wake_up_bit
+
 # required by clk-vexpress-osc.ko
   clk_hw_set_rate_range
   devm_clk_hw_register
@@ -480,26 +543,10 @@
   register_candev
   unregister_candev
   usb_alloc_coherent
-  usb_alloc_urb
-  usb_anchor_urb
-  usb_control_msg
-  usb_deregister
   usb_free_coherent
-  usb_free_urb
-  usb_kill_anchored_urbs
-  usb_register_driver
-  usb_submit_urb
-  usb_unanchor_urb
 
 # required by hci_vhci.ko
-  bt_err
   _copy_from_iter_full
-  hci_alloc_dev
-  hci_free_dev
-  hci_recv_frame
-  hci_register_dev
-  hci_unregister_dev
-  skb_pull
   skb_queue_head
   skb_queue_purge
 
@@ -633,7 +680,6 @@
   input_set_capability
   kstrtobool
   kstrtou8
-  pm_wakeup_dev_event
   ps2_begin_command
   ps2_cmd_aborted
   ps2_command
@@ -662,7 +708,6 @@
 
 # required by rtc-test.ko
   add_timer
-  device_init_wakeup
   devm_rtc_allocate_device
   ktime_get_real_seconds
   platform_device_add
@@ -859,8 +904,6 @@
 
 # required by virt_wifi_sim.ko
   ieee80211_get_channel_khz
-  release_firmware
-  request_firmware
 
 # required by virtio-gpu.ko
   __devm_request_region
-- 
GitLab


From 23ab8a50e0f0cb7daf1308e34d98362732e43b3d Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Thu, 11 Nov 2021 18:31:04 -0800
Subject: [PATCH 0869/4878] ANDROID: binder: fix regression in sender_euid

A recent change to use proc->cred instead of proc->tsk as the source
for sender_euid caused a failure in the CredentialsTest#CaptureLayersTest
test. Revert 1 line of the patch to fix the test. The rest of the patch
needs to remain since the subsequent patches rely on it.

Before fixing upstream, we need to investigate more since the code looks
correct so the issue may be a latent userspace bug.

Bug: 205938623
Fixes: d65efd5b73dc ("UPSTREAM: binder: use euid from cred instead of using task")
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I16543a50f43f79131234995fb0813de00795bd3d
---
 drivers/android/binder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 7d0c3ba1a2b15..a5093691c80b6 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2841,7 +2841,7 @@ static void binder_transaction(struct binder_proc *proc,
 		t->from = thread;
 	else
 		t->from = NULL;
-	t->sender_euid = proc->cred->euid;
+	t->sender_euid = task_euid(proc->tsk);
 	t->to_proc = target_proc;
 	t->to_thread = target_thread;
 	t->code = tr->code;
-- 
GitLab


From ecf58653f1e4ab88b4eb62db8fe799826d99d5ec Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 15 Oct 2021 04:50:01 -0400
Subject: [PATCH 0870/4878] KVM: x86: avoid warning with
 -Wbitwise-instead-of-logical

commit 3d5e7a28b1ea2d603dea478e58e37ce75b9597ab upstream.

This is a new warning in clang top-of-tree (will be clang 14):

In file included from arch/x86/kvm/mmu/mmu.c:27:
arch/x86/kvm/mmu/spte.h:318:9: error: use of bitwise '|' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
        return __is_bad_mt_xwr(rsvd_check, spte) |
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                 ||
arch/x86/kvm/mmu/spte.h:318:9: note: cast one or both operands to int to silence this warning

The code is fine, but change it anyway to shut up this clever clogs
of a compiler.

Reported-by: torvic9@mailbox.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[nathan: Backport to 5.10, which does not have 961f84457cd4]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 060d9a906535c..770d18dc46509 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -3545,7 +3545,7 @@ static bool get_mmio_spte(struct kvm_vcpu *vcpu, u64 addr, u64 *sptep)
 		 * reserved bit and EPT's invalid memtype/XWR checks to avoid
 		 * adding a Jcc in the loop.
 		 */
-		reserved |= __is_bad_mt_xwr(rsvd_check, sptes[level - 1]) |
+		reserved |= __is_bad_mt_xwr(rsvd_check, sptes[level - 1]) ||
 			    __is_rsvd_bits_set(rsvd_check, sptes[level - 1],
 					       level);
 	}
-- 
GitLab


From a8db6fd04d58b92d0698ee56e42134f26b236a90 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Mon, 13 Sep 2021 15:57:43 +0200
Subject: [PATCH 0871/4878] Revert "x86/kvm: fix vcpu-id indexed array sizes"

commit 1e254d0d86a0f2efd4190a89d5204b37c18c6381 upstream.

This reverts commit 76b4f357d0e7d8f6f0013c733e6cba1773c266d3.

The commit has the wrong reasoning, as KVM_MAX_VCPU_ID is not defining the
maximum allowed vcpu-id as its name suggests, but the number of vcpu-ids.
So revert this patch again.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210913135745.13944-2-jgross@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/ioapic.c | 2 +-
 arch/x86/kvm/ioapic.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c
index 8c065da73f8e5..4e0f52660842b 100644
--- a/arch/x86/kvm/ioapic.c
+++ b/arch/x86/kvm/ioapic.c
@@ -96,7 +96,7 @@ static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
 static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic)
 {
 	ioapic->rtc_status.pending_eoi = 0;
-	bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID + 1);
+	bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID);
 }
 
 static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
index 11e4065e16176..660401700075d 100644
--- a/arch/x86/kvm/ioapic.h
+++ b/arch/x86/kvm/ioapic.h
@@ -43,13 +43,13 @@ struct kvm_vcpu;
 
 struct dest_map {
 	/* vcpu bitmap where IRQ has been sent */
-	DECLARE_BITMAP(map, KVM_MAX_VCPU_ID + 1);
+	DECLARE_BITMAP(map, KVM_MAX_VCPU_ID);
 
 	/*
 	 * Vector sent to a given vcpu, only valid when
 	 * the vcpu's bit in map is set
 	 */
-	u8 vectors[KVM_MAX_VCPU_ID + 1];
+	u8 vectors[KVM_MAX_VCPU_ID];
 };
 
 
-- 
GitLab


From 94e5305a381658064949e2f427f4a7591f4194aa Mon Sep 17 00:00:00 2001
From: Neal Liu <neal_liu@aspeedtech.com>
Date: Fri, 10 Sep 2021 15:36:19 +0800
Subject: [PATCH 0872/4878] usb: ehci: handshake CMD_RUN instead of STS_HALT

commit 7f2d73788d9067fd4f677ac5f60ffd25945af7af upstream.

For Aspeed, HCHalted status depends on not only Run/Stop but also
ASS/PSS status.
Handshake CMD_RUN on startup instead.

Tested-by: Tao Ren <rentao.bupt@gmail.com>
Reviewed-by: Tao Ren <rentao.bupt@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20210910073619.26095-1-neal_liu@aspeedtech.com
Cc: Joel Stanley <joel@jms.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-hcd.c      | 11 ++++++++++-
 drivers/usb/host/ehci-platform.c |  6 ++++++
 drivers/usb/host/ehci.h          |  1 +
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 6793fd99c1cb4..8aff19ff8e8f0 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -634,7 +634,16 @@ static int ehci_run (struct usb_hcd *hcd)
 	/* Wait until HC become operational */
 	ehci_readl(ehci, &ehci->regs->command);	/* unblock posted writes */
 	msleep(5);
-	rc = ehci_handshake(ehci, &ehci->regs->status, STS_HALT, 0, 100 * 1000);
+
+	/* For Aspeed, STS_HALT also depends on ASS/PSS status.
+	 * Check CMD_RUN instead.
+	 */
+	if (ehci->is_aspeed)
+		rc = ehci_handshake(ehci, &ehci->regs->command, CMD_RUN,
+				    1, 100 * 1000);
+	else
+		rc = ehci_handshake(ehci, &ehci->regs->status, STS_HALT,
+				    0, 100 * 1000);
 
 	up_write(&ehci_cf_port_reset_rwsem);
 
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index a48dd3fac1537..2dcfc67f2ba81 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -294,6 +294,12 @@ static int ehci_platform_probe(struct platform_device *dev)
 					  "has-transaction-translator"))
 			hcd->has_tt = 1;
 
+		if (of_device_is_compatible(dev->dev.of_node,
+					    "aspeed,ast2500-ehci") ||
+		    of_device_is_compatible(dev->dev.of_node,
+					    "aspeed,ast2600-ehci"))
+			ehci->is_aspeed = 1;
+
 		if (soc_device_match(quirk_poll_match))
 			priv->quirk_poll = true;
 
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index eabf22a78eae0..59fd523c55f30 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -218,6 +218,7 @@ struct ehci_hcd {			/* one per controller */
 	unsigned		frame_index_bug:1; /* MosChip (AKA NetMos) */
 	unsigned		need_oc_pp_cycle:1; /* MPC834X port power */
 	unsigned		imx28_write_fix:1; /* For Freescale i.MX28 */
+	unsigned		is_aspeed:1;
 
 	/* required for usb32 quirk */
 	#define OHCI_CTRL_HCFS          (3 << 6)
-- 
GitLab


From 27409143122f9c68f74da42ce987cc6badb40784 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Wed, 27 Oct 2021 10:08:49 +0200
Subject: [PATCH 0873/4878] usb: gadget: Mark USB_FSL_QE broken on 64-bit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit a0548b26901f082684ad1fb3ba397d2de3a1406a upstream.

On 64-bit:

    drivers/usb/gadget/udc/fsl_qe_udc.c: In function ‘qe_ep0_rx’:
    drivers/usb/gadget/udc/fsl_qe_udc.c:842:13: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
      842 |     vaddr = (u32)phys_to_virt(in_be32(&bd->buf));
	  |             ^
    In file included from drivers/usb/gadget/udc/fsl_qe_udc.c:41:
    drivers/usb/gadget/udc/fsl_qe_udc.c:843:28: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
      843 |     frame_set_data(pframe, (u8 *)vaddr);
	  |                            ^

The driver assumes physical and virtual addresses are 32-bit, hence it
cannot work on 64-bit platforms.

Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211027080849.3276289-1-geert@linux-m68k.org
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/udc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index 1a12aab208b46..933e80d5053ac 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -330,6 +330,7 @@ config USB_AMD5536UDC
 config USB_FSL_QE
 	tristate "Freescale QE/CPM USB Device Controller"
 	depends on FSL_SOC && (QUICC_ENGINE || CPM)
+	depends on !64BIT || BROKEN
 	help
 	   Some of Freescale PowerPC processors have a Full Speed
 	   QE/CPM2 USB controller, which support device mode with 4
-- 
GitLab


From 1309753b7841db412063bcce3f2a0eddf1443e9d Mon Sep 17 00:00:00 2001
From: Viraj Shah <viraj.shah@linutronix.de>
Date: Thu, 21 Oct 2021 11:36:44 +0200
Subject: [PATCH 0874/4878] usb: musb: Balance list entry in musb_gadget_queue

commit 21b5fcdccb32ff09b6b63d4a83c037150665a83f upstream.

musb_gadget_queue() adds the passed request to musb_ep::req_list. If the
endpoint is idle and it is the first request then it invokes
musb_queue_resume_work(). If the function returns an error then the
error is passed to the caller without any clean-up and the request
remains enqueued on the list. If the caller enqueues the request again
then the list corrupts.

Remove the request from the list on error.

Fixes: ea2f35c01d5ea ("usb: musb: Fix sleeping function called from invalid context for hdrc glue")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Viraj Shah <viraj.shah@linutronix.de>
Link: https://lore.kernel.org/r/20211021093644.4734-1-viraj.shah@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/musb/musb_gadget.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index f62ffaede1abb..fb806b33178a0 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1247,9 +1247,11 @@ static int musb_gadget_queue(struct usb_ep *ep, struct usb_request *req,
 		status = musb_queue_resume_work(musb,
 						musb_ep_restart_resume_work,
 						request);
-		if (status < 0)
+		if (status < 0) {
 			dev_err(musb->controller, "%s resume work: %i\n",
 				__func__, status);
+			list_del(&request->list);
+		}
 	}
 
 unlock:
-- 
GitLab


From 42681b90c4db8bf29fc2cc93789ec093bb209296 Mon Sep 17 00:00:00 2001
From: James Buren <braewoods+lkml@braewoods.net>
Date: Wed, 13 Oct 2021 20:55:04 -0500
Subject: [PATCH 0875/4878] usb-storage: Add compatibility quirk flags for iODD
 2531/2541

commit 05c8f1b67e67dcd786ae3fe44492bbc617b4bd12 upstream.

These drive enclosures have firmware bugs that make it impossible to mount
a new virtual ISO image after Linux ejects the old one if the device is
locked by Linux. Windows bypasses this problem by the fact that they do
not lock the device. Add a quirk to disable device locking for these
drive enclosures.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Buren <braewoods+lkml@braewoods.net>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211014015504.2695089-1-braewoods+lkml@braewoods.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/storage/unusual_devs.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index c6b3fcf901805..29191d33c0e3e 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -406,6 +406,16 @@ UNUSUAL_DEV(  0x04b8, 0x0602, 0x0110, 0x0110,
 		"785EPX Storage",
 		USB_SC_SCSI, USB_PR_BULK, NULL, US_FL_SINGLE_LUN),
 
+/*
+ * Reported by James Buren <braewoods+lkml@braewoods.net>
+ * Virtual ISOs cannot be remounted if ejected while the device is locked
+ * Disable locking to mimic Windows behavior that bypasses the issue
+ */
+UNUSUAL_DEV(  0x04c5, 0x2028, 0x0001, 0x0001,
+		"iODD",
+		"2531/2541",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE),
+
 /*
  * Not sure who reported this originally but
  * Pavel Machek <pavel@ucw.cz> reported that the extra US_FL_SINGLE_LUN
-- 
GitLab


From 07d1db141e478917600fa32be11e5b828ff9ed13 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Fri, 15 Oct 2021 16:38:11 -0700
Subject: [PATCH 0876/4878] binder: don't detect sender/target during buffer
 cleanup

commit 32e9f56a96d8d0f23cb2aeb2a3cd18d40393e787 upstream.

When freeing txn buffers, binder_transaction_buffer_release()
attempts to detect whether the current context is the target by
comparing current->group_leader to proc->tsk. This is an unreliable
test. Instead explicitly pass an 'is_failure' boolean.

Detecting the sender was being used as a way to tell if the
transaction failed to be sent.  When cleaning up after
failing to send a transaction, there is no need to close
the fds associated with a BINDER_TYPE_FDA object. Now
'is_failure' can be used to accurately detect this case.

Fixes: 44d8047f1d87 ("binder: use standard functions to allocate fds")
Cc: stable <stable@vger.kernel.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Link: https://lore.kernel.org/r/20211015233811.3532235-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 65b22b5af51ac..d9977ce0be76d 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2254,7 +2254,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 		binder_dec_node(buffer->target_node, 1, 0);
 
 	off_start_offset = ALIGN(buffer->data_size, sizeof(void *));
-	off_end_offset = is_failure ? failed_at :
+	off_end_offset = is_failure && failed_at ? failed_at :
 				off_start_offset + buffer->offsets_size;
 	for (buffer_offset = off_start_offset; buffer_offset < off_end_offset;
 	     buffer_offset += sizeof(binder_size_t)) {
@@ -2340,9 +2340,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 			binder_size_t fd_buf_size;
 			binder_size_t num_valid;
 
-			if (proc->tsk != current->group_leader) {
+			if (is_failure) {
 				/*
-				 * Nothing to do if running in sender context
 				 * The fd fixups have not been applied so no
 				 * fds need to be closed.
 				 */
@@ -3544,6 +3543,7 @@ err_invalid_target_handle:
  * binder_free_buf() - free the specified buffer
  * @proc:	binder proc that owns buffer
  * @buffer:	buffer to be freed
+ * @is_failure:	failed to send transaction
  *
  * If buffer for an async transaction, enqueue the next async
  * transaction from the node.
@@ -3553,7 +3553,7 @@ err_invalid_target_handle:
 static void
 binder_free_buf(struct binder_proc *proc,
 		struct binder_thread *thread,
-		struct binder_buffer *buffer)
+		struct binder_buffer *buffer, bool is_failure)
 {
 	binder_inner_proc_lock(proc);
 	if (buffer->transaction) {
@@ -3581,7 +3581,7 @@ binder_free_buf(struct binder_proc *proc,
 		binder_node_inner_unlock(buf_node);
 	}
 	trace_binder_transaction_buffer_release(buffer);
-	binder_transaction_buffer_release(proc, thread, buffer, 0, false);
+	binder_transaction_buffer_release(proc, thread, buffer, 0, is_failure);
 	binder_alloc_free_buf(&proc->alloc, buffer);
 }
 
@@ -3782,7 +3782,7 @@ static int binder_thread_write(struct binder_proc *proc,
 				     proc->pid, thread->pid, (u64)data_ptr,
 				     buffer->debug_id,
 				     buffer->transaction ? "active" : "finished");
-			binder_free_buf(proc, thread, buffer);
+			binder_free_buf(proc, thread, buffer, false);
 			break;
 		}
 
@@ -4470,7 +4470,7 @@ retry:
 			buffer->transaction = NULL;
 			binder_cleanup_transaction(t, "fd fixups failed",
 						   BR_FAILED_REPLY);
-			binder_free_buf(proc, thread, buffer);
+			binder_free_buf(proc, thread, buffer, true);
 			binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
 				     "%d:%d %stransaction %d fd fixups failed %d/%d, line %d\n",
 				     proc->pid, thread->pid,
-- 
GitLab


From ab4af56ae2508df3bdabcb192874086f5f07d98c Mon Sep 17 00:00:00 2001
From: Petr Mladek <pmladek@suse.com>
Date: Wed, 11 Nov 2020 14:54:50 +0100
Subject: [PATCH 0877/4878] printk/console: Allow to disable console output by
 using console="" or console=null

commit 3cffa06aeef7ece30f6b5ac0ea51f264e8fea4d0 upstream.

The commit 48021f98130880dd74 ("printk: handle blank console arguments
passed in.") prevented crash caused by empty console= parameter value.

Unfortunately, this value is widely used on Chromebooks to disable
the console output. The above commit caused performance regression
because the messages were pushed on slow console even though nobody
was watching it.

Use ttynull driver explicitly for console="" and console=null
parameters. It has been created for exactly this purpose.

It causes that preferred_console is set. As a result, ttySX and ttyX
are not used as a fallback. And only ttynull console gets registered by
default.

It still allows to register other consoles either by additional console=
parameters or SPCR. It prevents regression because it worked this way even
before. Also it is a sane semantic. Preventing output on all consoles
should be done another way, for example, by introducing mute_console
parameter.

Link: https://lore.kernel.org/r/20201006025935.GA597@jagdpanzerIV.localdomain
Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20201111135450.11214-3-pmladek@suse.com
Cc: Yi Fan <yfa@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/printk/printk.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index d0df95346ab3f..85351a12c85dc 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2213,8 +2213,15 @@ static int __init console_setup(char *str)
 	char *s, *options, *brl_options = NULL;
 	int idx;
 
-	if (str[0] == 0)
+	/*
+	 * console="" or console=null have been suggested as a way to
+	 * disable console output. Use ttynull that has been created
+	 * for exacly this purpose.
+	 */
+	if (str[0] == 0 || strcmp(str, "null") == 0) {
+		__add_preferred_console("ttynull", 0, NULL, NULL, true);
 		return 1;
+	}
 
 	if (_braille_console_setup(&str, &brl_options))
 		return 1;
-- 
GitLab


From c430094541a80575259a94ff879063ef01473506 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Wed, 20 Oct 2021 00:17:18 +0300
Subject: [PATCH 0878/4878] staging: rtl8712: fix use-after-free in
 rtl8712_dl_fw

commit c052cc1a069c3e575619cf64ec427eb41176ca70 upstream.

Syzbot reported use-after-free in rtl8712_dl_fw(). The problem was in
race condition between r871xu_dev_remove() ->ndo_open() callback.

It's easy to see from crash log, that driver accesses released firmware
in ->ndo_open() callback. It may happen, since driver was releasing
firmware _before_ unregistering netdev. Fix it by moving
unregister_netdev() before cleaning up resources.

Call Trace:
...
 rtl871x_open_fw drivers/staging/rtl8712/hal_init.c:83 [inline]
 rtl8712_dl_fw+0xd95/0xe10 drivers/staging/rtl8712/hal_init.c:170
 rtl8712_hal_init drivers/staging/rtl8712/hal_init.c:330 [inline]
 rtl871x_hal_init+0xae/0x180 drivers/staging/rtl8712/hal_init.c:394
 netdev_open+0xe6/0x6c0 drivers/staging/rtl8712/os_intfs.c:380
 __dev_open+0x2bc/0x4d0 net/core/dev.c:1484

Freed by task 1306:
...
 release_firmware+0x1b/0x30 drivers/base/firmware_loader/main.c:1053
 r871xu_dev_remove+0xcc/0x2c0 drivers/staging/rtl8712/usb_intf.c:599
 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458

Fixes: 8c213fa59199 ("staging: r8712u: Use asynchronous firmware loading")
Cc: stable <stable@vger.kernel.org>
Reported-and-tested-by: syzbot+c55162be492189fb4f51@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211019211718.26354-1-paskripkin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8712/usb_intf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index 17d28af0d0867..fed96d4251bfa 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -598,12 +598,12 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
 
 	/* never exit with a firmware callback pending */
 	wait_for_completion(&padapter->rtl8712_fw_ready);
+	if (pnetdev->reg_state != NETREG_UNINITIALIZED)
+		unregister_netdev(pnetdev); /* will call netdev_close() */
 	usb_set_intfdata(pusb_intf, NULL);
 	release_firmware(padapter->fw);
 	if (drvpriv.drv_registered)
 		padapter->surprise_removed = true;
-	if (pnetdev->reg_state != NETREG_UNINITIALIZED)
-		unregister_netdev(pnetdev); /* will call netdev_close() */
 	r8712_flush_rwctrl_works(padapter);
 	r8712_flush_led_works(padapter);
 	udelay(1);
-- 
GitLab


From 86d4aedcbc69c0f84551fb70f953c24e396de2d7 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 18 Oct 2021 12:37:41 +0200
Subject: [PATCH 0879/4878] isofs: Fix out of bound access for corrupted isofs
 image

commit e96a1866b40570b5950cda8602c2819189c62a48 upstream.

When isofs image is suitably corrupted isofs_read_inode() can read data
beyond the end of buffer. Sanity-check the directory entry length before
using it.

Reported-and-tested-by: syzbot+6fc7fb214625d82af7d1@syzkaller.appspotmail.com
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/isofs/inode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 35675a1065be8..f62b5a5015668 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -1321,6 +1321,8 @@ static int isofs_read_inode(struct inode *inode, int relocated)
 
 	de = (struct iso_directory_record *) (bh->b_data + offset);
 	de_len = *(unsigned char *) de;
+	if (de_len < sizeof(struct iso_directory_record))
+		goto fail;
 
 	if (offset + de_len > bufsize) {
 		int frag1 = bufsize - offset;
-- 
GitLab


From 786f5b03450454557ff858a8bead5d7c0cbf78d6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 27 Oct 2021 11:35:29 +0200
Subject: [PATCH 0880/4878] comedi: dt9812: fix DMA buffers on stack

commit 536de747bc48262225889a533db6650731ab25d3 upstream.

USB transfer buffers are typically mapped for DMA and must not be
allocated on the stack or transfers will fail.

Allocate proper transfer buffers in the various command helpers and
return an error on short transfers instead of acting on random stack
data.

Note that this also fixes a stack info leak on systems where DMA is not
used as 32 bytes are always sent to the device regardless of how short
the command is.

Fixes: 63274cd7d38a ("Staging: comedi: add usb dt9812 driver")
Cc: stable@vger.kernel.org      # 2.6.29
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211027093529.30896-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/dt9812.c | 115 ++++++++++++++++++------
 1 file changed, 86 insertions(+), 29 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index 634f57730c1e0..704b04d2980d3 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/errno.h>
+#include <linux/slab.h>
 #include <linux/uaccess.h>
 
 #include "../comedi_usb.h"
@@ -237,22 +238,42 @@ static int dt9812_read_info(struct comedi_device *dev,
 {
 	struct usb_device *usb = comedi_to_usb_dev(dev);
 	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
+	struct dt9812_usb_cmd *cmd;
+	size_t tbuf_size;
 	int count, ret;
+	void *tbuf;
 
-	cmd.cmd = cpu_to_le32(DT9812_R_FLASH_DATA);
-	cmd.u.flash_data_info.address =
+	tbuf_size = max(sizeof(*cmd), buf_size);
+
+	tbuf = kzalloc(tbuf_size, GFP_KERNEL);
+	if (!tbuf)
+		return -ENOMEM;
+
+	cmd = tbuf;
+
+	cmd->cmd = cpu_to_le32(DT9812_R_FLASH_DATA);
+	cmd->u.flash_data_info.address =
 	    cpu_to_le16(DT9812_DIAGS_BOARD_INFO_ADDR + offset);
-	cmd.u.flash_data_info.numbytes = cpu_to_le16(buf_size);
+	cmd->u.flash_data_info.numbytes = cpu_to_le16(buf_size);
 
 	/* DT9812 only responds to 32 byte writes!! */
 	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			   &cmd, 32, &count, DT9812_USB_TIMEOUT);
+			   cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
 	if (ret)
-		return ret;
+		goto out;
+
+	ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
+			   tbuf, buf_size, &count, DT9812_USB_TIMEOUT);
+	if (!ret) {
+		if (count == buf_size)
+			memcpy(buf, tbuf, buf_size);
+		else
+			ret = -EREMOTEIO;
+	}
+out:
+	kfree(tbuf);
 
-	return usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
-			    buf, buf_size, &count, DT9812_USB_TIMEOUT);
+	return ret;
 }
 
 static int dt9812_read_multiple_registers(struct comedi_device *dev,
@@ -261,22 +282,42 @@ static int dt9812_read_multiple_registers(struct comedi_device *dev,
 {
 	struct usb_device *usb = comedi_to_usb_dev(dev);
 	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
+	struct dt9812_usb_cmd *cmd;
 	int i, count, ret;
+	size_t buf_size;
+	void *buf;
 
-	cmd.cmd = cpu_to_le32(DT9812_R_MULTI_BYTE_REG);
-	cmd.u.read_multi_info.count = reg_count;
+	buf_size = max_t(size_t, sizeof(*cmd), reg_count);
+
+	buf = kzalloc(buf_size, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	cmd = buf;
+
+	cmd->cmd = cpu_to_le32(DT9812_R_MULTI_BYTE_REG);
+	cmd->u.read_multi_info.count = reg_count;
 	for (i = 0; i < reg_count; i++)
-		cmd.u.read_multi_info.address[i] = address[i];
+		cmd->u.read_multi_info.address[i] = address[i];
 
 	/* DT9812 only responds to 32 byte writes!! */
 	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			   &cmd, 32, &count, DT9812_USB_TIMEOUT);
+			   cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
 	if (ret)
-		return ret;
+		goto out;
+
+	ret = usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
+			   buf, reg_count, &count, DT9812_USB_TIMEOUT);
+	if (!ret) {
+		if (count == reg_count)
+			memcpy(value, buf, reg_count);
+		else
+			ret = -EREMOTEIO;
+	}
+out:
+	kfree(buf);
 
-	return usb_bulk_msg(usb, usb_rcvbulkpipe(usb, devpriv->cmd_rd.addr),
-			    value, reg_count, &count, DT9812_USB_TIMEOUT);
+	return ret;
 }
 
 static int dt9812_write_multiple_registers(struct comedi_device *dev,
@@ -285,19 +326,27 @@ static int dt9812_write_multiple_registers(struct comedi_device *dev,
 {
 	struct usb_device *usb = comedi_to_usb_dev(dev);
 	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
+	struct dt9812_usb_cmd *cmd;
 	int i, count;
+	int ret;
+
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	if (!cmd)
+		return -ENOMEM;
 
-	cmd.cmd = cpu_to_le32(DT9812_W_MULTI_BYTE_REG);
-	cmd.u.read_multi_info.count = reg_count;
+	cmd->cmd = cpu_to_le32(DT9812_W_MULTI_BYTE_REG);
+	cmd->u.read_multi_info.count = reg_count;
 	for (i = 0; i < reg_count; i++) {
-		cmd.u.write_multi_info.write[i].address = address[i];
-		cmd.u.write_multi_info.write[i].value = value[i];
+		cmd->u.write_multi_info.write[i].address = address[i];
+		cmd->u.write_multi_info.write[i].value = value[i];
 	}
 
 	/* DT9812 only responds to 32 byte writes!! */
-	return usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			    &cmd, 32, &count, DT9812_USB_TIMEOUT);
+	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
+			   cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
+	kfree(cmd);
+
+	return ret;
 }
 
 static int dt9812_rmw_multiple_registers(struct comedi_device *dev,
@@ -306,17 +355,25 @@ static int dt9812_rmw_multiple_registers(struct comedi_device *dev,
 {
 	struct usb_device *usb = comedi_to_usb_dev(dev);
 	struct dt9812_private *devpriv = dev->private;
-	struct dt9812_usb_cmd cmd;
+	struct dt9812_usb_cmd *cmd;
 	int i, count;
+	int ret;
+
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	if (!cmd)
+		return -ENOMEM;
 
-	cmd.cmd = cpu_to_le32(DT9812_RMW_MULTI_BYTE_REG);
-	cmd.u.rmw_multi_info.count = reg_count;
+	cmd->cmd = cpu_to_le32(DT9812_RMW_MULTI_BYTE_REG);
+	cmd->u.rmw_multi_info.count = reg_count;
 	for (i = 0; i < reg_count; i++)
-		cmd.u.rmw_multi_info.rmw[i] = rmw[i];
+		cmd->u.rmw_multi_info.rmw[i] = rmw[i];
 
 	/* DT9812 only responds to 32 byte writes!! */
-	return usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
-			    &cmd, 32, &count, DT9812_USB_TIMEOUT);
+	ret = usb_bulk_msg(usb, usb_sndbulkpipe(usb, devpriv->cmd_wr.addr),
+			   cmd, sizeof(*cmd), &count, DT9812_USB_TIMEOUT);
+	kfree(cmd);
+
+	return ret;
 }
 
 static int dt9812_digital_in(struct comedi_device *dev, u8 *bits)
-- 
GitLab


From ef143dc0c3defe56730ecd3a9de7b3e1d7e557c1 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 27 Oct 2021 11:35:28 +0200
Subject: [PATCH 0881/4878] comedi: ni_usb6501: fix NULL-deref in command paths

commit 907767da8f3a925b060c740e0b5c92ea7dbec440 upstream.

The driver uses endpoint-sized USB transfer buffers but had no sanity
checks on the sizes. This can lead to zero-size-pointer dereferences or
overflowed transfer buffers in ni6501_port_command() and
ni6501_counter_command() if a (malicious) device has smaller max-packet
sizes than expected (or when doing descriptor fuzz testing).

Add the missing sanity checks to probe().

Fixes: a03bb00e50ab ("staging: comedi: add NI USB-6501 support")
Cc: stable@vger.kernel.org      # 3.18
Cc: Luca Ellero <luca.ellero@brickedbrain.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211027093529.30896-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_usb6501.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
index 5b6d9d783b2f7..c42987b74b1dc 100644
--- a/drivers/staging/comedi/drivers/ni_usb6501.c
+++ b/drivers/staging/comedi/drivers/ni_usb6501.c
@@ -144,6 +144,10 @@ static const u8 READ_COUNTER_RESPONSE[]	= {0x00, 0x01, 0x00, 0x10,
 					   0x00, 0x00, 0x00, 0x02,
 					   0x00, 0x00, 0x00, 0x00};
 
+/* Largest supported packets */
+static const size_t TX_MAX_SIZE	= sizeof(SET_PORT_DIR_REQUEST);
+static const size_t RX_MAX_SIZE	= sizeof(READ_PORT_RESPONSE);
+
 enum commands {
 	READ_PORT,
 	WRITE_PORT,
@@ -501,6 +505,12 @@ static int ni6501_find_endpoints(struct comedi_device *dev)
 	if (!devpriv->ep_rx || !devpriv->ep_tx)
 		return -ENODEV;
 
+	if (usb_endpoint_maxp(devpriv->ep_rx) < RX_MAX_SIZE)
+		return -ENODEV;
+
+	if (usb_endpoint_maxp(devpriv->ep_tx) < TX_MAX_SIZE)
+		return -ENODEV;
+
 	return 0;
 }
 
-- 
GitLab


From 33d7a470730dfe7c9bfc8da84575cf2cedd60d00 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:45:30 +0200
Subject: [PATCH 0882/4878] comedi: vmk80xx: fix transfer-buffer overflows

commit a23461c47482fc232ffc9b819539d1f837adf2b1 upstream.

The driver uses endpoint-sized USB transfer buffers but up until
recently had no sanity checks on the sizes.

Commit e1f13c879a7c ("staging: comedi: check validity of wMaxPacketSize
of usb endpoints found") inadvertently fixed NULL-pointer dereferences
when accessing the transfer buffers in case a malicious device has a
zero wMaxPacketSize.

Make sure to allocate buffers large enough to handle also the other
accesses that are done without a size check (e.g. byte 18 in
vmk80xx_cnt_insn_read() for the VMK8061_MODEL) to avoid writing beyond
the buffers, for example, when doing descriptor fuzzing.

The original driver was for a low-speed device with 8-byte buffers.
Support was later added for a device that uses bulk transfers and is
presumably a full-speed device with a maximum 64-byte wMaxPacketSize.

Fixes: 985cafccbf9b ("Staging: Comedi: vmk80xx: Add k8061 support")
Cc: stable@vger.kernel.org      # 2.6.31
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20211025114532.4599-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/vmk80xx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 7956abcbae22b..2787757cf75f8 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -90,6 +90,8 @@ enum {
 #define IC3_VERSION		BIT(0)
 #define IC6_VERSION		BIT(1)
 
+#define MIN_BUF_SIZE		64
+
 enum vmk80xx_model {
 	VMK8055_MODEL,
 	VMK8061_MODEL
@@ -678,12 +680,12 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)
 	struct vmk80xx_private *devpriv = dev->private;
 	size_t size;
 
-	size = usb_endpoint_maxp(devpriv->ep_rx);
+	size = max(usb_endpoint_maxp(devpriv->ep_rx), MIN_BUF_SIZE);
 	devpriv->usb_rx_buf = kzalloc(size, GFP_KERNEL);
 	if (!devpriv->usb_rx_buf)
 		return -ENOMEM;
 
-	size = usb_endpoint_maxp(devpriv->ep_tx);
+	size = max(usb_endpoint_maxp(devpriv->ep_rx), MIN_BUF_SIZE);
 	devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
 	if (!devpriv->usb_tx_buf)
 		return -ENOMEM;
-- 
GitLab


From b7fd7f3387f070215e6be341e68eb5c087eeecc0 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:45:31 +0200
Subject: [PATCH 0883/4878] comedi: vmk80xx: fix bulk-buffer overflow

commit 78cdfd62bd54af615fba9e3ca1ba35de39d3871d upstream.

The driver is using endpoint-sized buffers but must not assume that the
tx and rx buffers are of equal size or a malicious device could overflow
the slab-allocated receive buffer when doing bulk transfers.

Fixes: 985cafccbf9b ("Staging: Comedi: vmk80xx: Add k8061 support")
Cc: stable@vger.kernel.org      # 2.6.31
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20211025114532.4599-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/vmk80xx.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 2787757cf75f8..78c0383b8088a 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -159,22 +159,20 @@ static void vmk80xx_do_bulk_msg(struct comedi_device *dev)
 	__u8 rx_addr;
 	unsigned int tx_pipe;
 	unsigned int rx_pipe;
-	size_t size;
+	size_t tx_size;
+	size_t rx_size;
 
 	tx_addr = devpriv->ep_tx->bEndpointAddress;
 	rx_addr = devpriv->ep_rx->bEndpointAddress;
 	tx_pipe = usb_sndbulkpipe(usb, tx_addr);
 	rx_pipe = usb_rcvbulkpipe(usb, rx_addr);
-
-	/*
-	 * The max packet size attributes of the K8061
-	 * input/output endpoints are identical
-	 */
-	size = usb_endpoint_maxp(devpriv->ep_tx);
+	tx_size = usb_endpoint_maxp(devpriv->ep_tx);
+	rx_size = usb_endpoint_maxp(devpriv->ep_rx);
 
 	usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf,
-		     size, NULL, devpriv->ep_tx->bInterval);
-	usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, size, NULL, HZ * 10);
+		     tx_size, NULL, devpriv->ep_tx->bInterval);
+
+	usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, rx_size, NULL, HZ * 10);
 }
 
 static int vmk80xx_read_packet(struct comedi_device *dev)
-- 
GitLab


From 844b02496eaca61c3eb2e7430dfc25a06302bff3 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:45:32 +0200
Subject: [PATCH 0884/4878] comedi: vmk80xx: fix bulk and interrupt message
 timeouts

commit a56d3e40bda460edf3f8d6aac00ec0b322b4ab83 upstream.

USB bulk and interrupt message timeouts are specified in milliseconds
and should specifically not vary with CONFIG_HZ.

Note that the bulk-out transfer timeout was set to the endpoint
bInterval value, which should be ignored for bulk endpoints and is
typically set to zero. This meant that a failing bulk-out transfer
would never time out.

Assume that the 10 second timeout used for all other transfers is more
than enough also for the bulk-out endpoint.

Fixes: 985cafccbf9b ("Staging: Comedi: vmk80xx: Add k8061 support")
Fixes: 951348b37738 ("staging: comedi: vmk80xx: wait for URBs to complete")
Cc: stable@vger.kernel.org      # 2.6.31
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20211025114532.4599-6-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/vmk80xx.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 78c0383b8088a..7769eadfaf61d 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -91,6 +91,7 @@ enum {
 #define IC6_VERSION		BIT(1)
 
 #define MIN_BUF_SIZE		64
+#define PACKET_TIMEOUT		10000	/* ms */
 
 enum vmk80xx_model {
 	VMK8055_MODEL,
@@ -169,10 +170,11 @@ static void vmk80xx_do_bulk_msg(struct comedi_device *dev)
 	tx_size = usb_endpoint_maxp(devpriv->ep_tx);
 	rx_size = usb_endpoint_maxp(devpriv->ep_rx);
 
-	usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf,
-		     tx_size, NULL, devpriv->ep_tx->bInterval);
+	usb_bulk_msg(usb, tx_pipe, devpriv->usb_tx_buf, tx_size, NULL,
+		     PACKET_TIMEOUT);
 
-	usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, rx_size, NULL, HZ * 10);
+	usb_bulk_msg(usb, rx_pipe, devpriv->usb_rx_buf, rx_size, NULL,
+		     PACKET_TIMEOUT);
 }
 
 static int vmk80xx_read_packet(struct comedi_device *dev)
@@ -191,7 +193,7 @@ static int vmk80xx_read_packet(struct comedi_device *dev)
 	pipe = usb_rcvintpipe(usb, ep->bEndpointAddress);
 	return usb_interrupt_msg(usb, pipe, devpriv->usb_rx_buf,
 				 usb_endpoint_maxp(ep), NULL,
-				 HZ * 10);
+				 PACKET_TIMEOUT);
 }
 
 static int vmk80xx_write_packet(struct comedi_device *dev, int cmd)
@@ -212,7 +214,7 @@ static int vmk80xx_write_packet(struct comedi_device *dev, int cmd)
 	pipe = usb_sndintpipe(usb, ep->bEndpointAddress);
 	return usb_interrupt_msg(usb, pipe, devpriv->usb_tx_buf,
 				 usb_endpoint_maxp(ep), NULL,
-				 HZ * 10);
+				 PACKET_TIMEOUT);
 }
 
 static int vmk80xx_reset_device(struct comedi_device *dev)
-- 
GitLab


From 9963ba5b9d495d05bf32f37dc42d69afed46639b Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:09:10 +0200
Subject: [PATCH 0885/4878] staging: r8712u: fix control-message timeout

commit ce4940525f36ffdcf4fa623bcedab9c2a6db893a upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 2865d42c78a9 ("staging: r8712u: Add the new driver to the mainline kernel")
Cc: stable@vger.kernel.org      # 2.6.37
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025120910.6339-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8712/usb_ops_linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c
index 655497cead122..f984a5ab2c6ff 100644
--- a/drivers/staging/rtl8712/usb_ops_linux.c
+++ b/drivers/staging/rtl8712/usb_ops_linux.c
@@ -494,7 +494,7 @@ int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value,
 		memcpy(pIo_buf, pdata, len);
 	}
 	status = usb_control_msg(udev, pipe, request, reqtype, value, index,
-				 pIo_buf, len, HZ / 2);
+				 pIo_buf, len, 500);
 	if (status > 0) {  /* Success this control transfer. */
 		if (requesttype == 0x01) {
 			/* For Control read transfer, we have to copy the read
-- 
GitLab


From 1cf43e928954f5d511d3bb28c045ab430e9440a8 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:09:09 +0200
Subject: [PATCH 0886/4878] staging: rtl8192u: fix control-message timeouts

commit 4cfa36d312d6789448b59a7aae770ac8425017a3 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging")
Cc: stable@vger.kernel.org      # 2.6.33
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025120910.6339-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_core.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 4523e825a61a8..7f90af8a7c7c9 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -229,7 +229,7 @@ int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
 
 	status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 				 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
-				 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
+				 indx | 0xfe00, 0, usbdata, 1, 500);
 	kfree(usbdata);
 
 	if (status < 0) {
@@ -251,7 +251,7 @@ int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)
 
 	status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
-				 indx | 0xfe00, 0, usbdata, 1, HZ / 2);
+				 indx | 0xfe00, 0, usbdata, 1, 500);
 	*data = *usbdata;
 	kfree(usbdata);
 
@@ -279,7 +279,7 @@ int write_nic_byte(struct net_device *dev, int indx, u8 data)
 	status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 				 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
 				 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
-				 usbdata, 1, HZ / 2);
+				 usbdata, 1, 500);
 	kfree(usbdata);
 
 	if (status < 0) {
@@ -305,7 +305,7 @@ int write_nic_word(struct net_device *dev, int indx, u16 data)
 	status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 				 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
 				 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
-				 usbdata, 2, HZ / 2);
+				 usbdata, 2, 500);
 	kfree(usbdata);
 
 	if (status < 0) {
@@ -331,7 +331,7 @@ int write_nic_dword(struct net_device *dev, int indx, u32 data)
 	status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 				 RTL8187_REQ_SET_REGS, RTL8187_REQT_WRITE,
 				 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
-				 usbdata, 4, HZ / 2);
+				 usbdata, 4, 500);
 	kfree(usbdata);
 
 	if (status < 0) {
@@ -355,7 +355,7 @@ int read_nic_byte(struct net_device *dev, int indx, u8 *data)
 	status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
 				 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
-				 usbdata, 1, HZ / 2);
+				 usbdata, 1, 500);
 	*data = *usbdata;
 	kfree(usbdata);
 
@@ -380,7 +380,7 @@ int read_nic_word(struct net_device *dev, int indx, u16 *data)
 	status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
 				 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
-				 usbdata, 2, HZ / 2);
+				 usbdata, 2, 500);
 	*data = *usbdata;
 	kfree(usbdata);
 
@@ -404,7 +404,7 @@ static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
 
 	status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
-				 indx | 0xfe00, 0, usbdata, 2, HZ / 2);
+				 indx | 0xfe00, 0, usbdata, 2, 500);
 	*data = *usbdata;
 	kfree(usbdata);
 
@@ -430,7 +430,7 @@ int read_nic_dword(struct net_device *dev, int indx, u32 *data)
 	status = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				 RTL8187_REQ_GET_REGS, RTL8187_REQT_READ,
 				 (indx & 0xff) | 0xff00, (indx >> 8) & 0x0f,
-				 usbdata, 4, HZ / 2);
+				 usbdata, 4, 500);
 	*data = *usbdata;
 	kfree(usbdata);
 
-- 
GitLab


From 8971158af1e0138bf0576c16f9aa153f151fb6b4 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Date: Tue, 10 Aug 2021 19:09:55 +0200
Subject: [PATCH 0887/4878] media: staging/intel-ipu3: css: Fix wrong size
 comparison imgu_css_fw_init

commit a44f9d6f9dc1fb314a3f1ed2dcd4fbbcc3d9f892 upstream.

There is a wrong comparison of the total size of the loaded firmware
css->fw->size with the size of a pointer to struct imgu_fw_header.

Turn binary_header into a flexible-array member[1][2], use the
struct_size() helper and fix the wrong size comparison. Notice
that the loaded firmware needs to contain at least one 'struct
imgu_fw_info' item in the binary_header[] array.

It's also worth mentioning that

	"css->fw->size < struct_size(css->fwp, binary_header, 1)"

with binary_header declared as a flexible-array member is equivalent
to

	"css->fw->size < sizeof(struct imgu_fw_header)"

with binary_header declared as a one-element array (as in the original
code).

The replacement of the one-element array with a flexible-array member
also helps with the ongoing efforts to globally enable -Warray-bounds
and get us closer to being able to tighten the FORTIFY_SOURCE routines
on memcpy().

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.10/process/deprecated.html#zero-length-and-one-element-arrays

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/109

Fixes: 09d290f0ba21 ("media: staging/intel-ipu3: css: Add support for firmware management")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/ipu3/ipu3-css-fw.c | 7 +++----
 drivers/staging/media/ipu3/ipu3-css-fw.h | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/media/ipu3/ipu3-css-fw.c b/drivers/staging/media/ipu3/ipu3-css-fw.c
index 45aff76198e2c..981693eed8155 100644
--- a/drivers/staging/media/ipu3/ipu3-css-fw.c
+++ b/drivers/staging/media/ipu3/ipu3-css-fw.c
@@ -124,12 +124,11 @@ int imgu_css_fw_init(struct imgu_css *css)
 	/* Check and display fw header info */
 
 	css->fwp = (struct imgu_fw_header *)css->fw->data;
-	if (css->fw->size < sizeof(struct imgu_fw_header *) ||
+	if (css->fw->size < struct_size(css->fwp, binary_header, 1) ||
 	    css->fwp->file_header.h_size != sizeof(struct imgu_fw_bi_file_h))
 		goto bad_fw;
-	if (sizeof(struct imgu_fw_bi_file_h) +
-	    css->fwp->file_header.binary_nr * sizeof(struct imgu_fw_info) >
-	    css->fw->size)
+	if (struct_size(css->fwp, binary_header,
+			css->fwp->file_header.binary_nr) > css->fw->size)
 		goto bad_fw;
 
 	dev_info(dev, "loaded firmware version %.64s, %u binaries, %zu bytes\n",
diff --git a/drivers/staging/media/ipu3/ipu3-css-fw.h b/drivers/staging/media/ipu3/ipu3-css-fw.h
index 79ffa70451390..650fd25fc79ee 100644
--- a/drivers/staging/media/ipu3/ipu3-css-fw.h
+++ b/drivers/staging/media/ipu3/ipu3-css-fw.h
@@ -170,7 +170,7 @@ struct imgu_fw_bi_file_h {
 
 struct imgu_fw_header {
 	struct imgu_fw_bi_file_h file_header;
-	struct imgu_fw_info binary_header[1];	/* binary_nr items */
+	struct imgu_fw_info binary_header[];	/* binary_nr items */
 };
 
 /******************* Firmware functions *******************/
-- 
GitLab


From 62424fe4c2cf38f27c1eef66cbfa226ffe233e90 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:05:22 +0200
Subject: [PATCH 0888/4878] rsi: fix control-message timeout

commit 541fd20c3ce5b0bc39f0c6a52414b6b92416831c upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Use the common control-message timeout define for the five-second
timeout.

Fixes: dad0d04fa7ba ("rsi: Add RS9113 wireless driver")
Cc: stable@vger.kernel.org      # 3.15
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211025120522.6045-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/rsi/rsi_91x_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 3b13de59605e1..983045ad79dcf 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -61,7 +61,7 @@ static int rsi_usb_card_write(struct rsi_hw *adapter,
 			      (void *)seg,
 			      (int)len,
 			      &transfer,
-			      HZ * 5);
+			      USB_CTRL_SET_TIMEOUT);
 
 	if (status < 0) {
 		rsi_dbg(ERR_ZONE,
-- 
GitLab


From bd816c278316f20a5575debc64dde4422229a880 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 12 Nov 2021 14:58:35 +0100
Subject: [PATCH 0889/4878] Linux 5.10.79

Link: https://lore.kernel.org/r/20211110182002.964190708@linuxfoundation.org
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 288fb48392538..756479b101f80 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 78
+SUBLEVEL = 79
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 739c58e1b64f4139201eb745a32bcb8cc507786f Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 12 Nov 2021 11:13:24 -0800
Subject: [PATCH 0890/4878] UPSTREAM: tracing/histogram: Fix check for missing
 operands in an expression

If a binary operation is detected while parsing an expression string,
the operand strings are deduced by splitting the experssion string at
the position of the detected binary operator. Both operand strings are
sub-strings (can be empty string) of the expression string but will
never be NULL.

Currently a NULL check is used for missing operands, fix this by
checking for empty strings instead.

Link: https://lkml.kernel.org/r/20211112191324.1302505-1-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Fixes: 9710b2f341a0 ("tracing: Fix operator precedence for hist triggers expression")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 1cab6bce42e62bba2ff2c2370d139618c1828b42)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ic19c0ac55ea3519756aacd3cf92b0fbed0ad5304
---
 kernel/trace/trace_events_hist.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 2270ce15e7198..c71d1adfd1f33 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2509,7 +2509,8 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	operand1_str = str;
 	str = sep+1;
 
-	if (!operand1_str || !str)
+	/* Binary operator requires both operands */
+	if (*operand1_str == '\0' || *str == '\0')
 		goto free;
 
 	operand_flags = 0;
-- 
GitLab


From 46fb5bead0cb5af059482bd937e5f8444f1841bf Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 1 Jul 2021 23:53:46 -0700
Subject: [PATCH 0891/4878] fscrypt: add fscrypt_symlink_getattr() for
 computing st_size

Add a helper function fscrypt_symlink_getattr() which will be called
from the various filesystems' ->getattr() methods to read and decrypt
the target of encrypted symlinks in order to report the correct st_size.

Detailed explanation:

As required by POSIX and as documented in various man pages, st_size for
a symlink is supposed to be the length of the symlink target.
Unfortunately, st_size has always been wrong for encrypted symlinks
because st_size is populated from i_size from disk, which intentionally
contains the length of the encrypted symlink target.  That's slightly
greater than the length of the decrypted symlink target (which is the
symlink target that userspace usually sees), and usually won't match the
length of the no-key encoded symlink target either.

This hadn't been fixed yet because reporting the correct st_size would
require reading the symlink target from disk and decrypting or encoding
it, which historically has been considered too heavyweight to do in
->getattr().  Also historically, the wrong st_size had only broken a
test (LTP lstat03) and there were no known complaints from real users.
(This is probably because the st_size of symlinks isn't used too often,
and when it is, typically it's for a hint for what buffer size to pass
to readlink() -- which a slightly-too-large size still works for.)

However, a couple things have changed now.  First, there have recently
been complaints about the current behavior from real users:

- Breakage in rpmbuild:
  https://github.com/rpm-software-management/rpm/issues/1682
  https://github.com/google/fscrypt/issues/305

- Breakage in toybox cpio:
  https://www.mail-archive.com/toybox@lists.landley.net/msg07193.html

- Breakage in libgit2: https://issuetracker.google.com/issues/189629152
  (on Android public issue tracker, requires login)

Second, we now cache decrypted symlink targets in ->i_link.  Therefore,
taking the performance hit of reading and decrypting the symlink target
in ->getattr() wouldn't be as big a deal as it used to be, since usually
it will just save having to do the same thing later.

Also note that eCryptfs ended up having to read and decrypt symlink
targets in ->getattr() as well, to fix this same issue; see
commit 3a60a1686f0d ("eCryptfs: Decrypt symlink target for stat size").

So, let's just bite the bullet, and read and decrypt the symlink target
in ->getattr() in order to report the correct st_size.  Add a function
fscrypt_symlink_getattr() which the filesystems will call to do this.

(Alternatively, we could store the decrypted size of symlinks on-disk.
But there isn't a great place to do so, and encryption is meant to hide
the original size to some extent; that property would be lost.)

Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210702065350.209646-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/hooks.c       | 44 +++++++++++++++++++++++++++++++++++++++++
 include/linux/fscrypt.h |  7 +++++++
 2 files changed, 51 insertions(+)

diff --git a/fs/crypto/hooks.c b/fs/crypto/hooks.c
index a73b0376e6f37..af74599ae1cf0 100644
--- a/fs/crypto/hooks.c
+++ b/fs/crypto/hooks.c
@@ -384,3 +384,47 @@ err_kfree:
 	return ERR_PTR(err);
 }
 EXPORT_SYMBOL_GPL(fscrypt_get_symlink);
+
+/**
+ * fscrypt_symlink_getattr() - set the correct st_size for encrypted symlinks
+ * @path: the path for the encrypted symlink being queried
+ * @stat: the struct being filled with the symlink's attributes
+ *
+ * Override st_size of encrypted symlinks to be the length of the decrypted
+ * symlink target (or the no-key encoded symlink target, if the key is
+ * unavailable) rather than the length of the encrypted symlink target.  This is
+ * necessary for st_size to match the symlink target that userspace actually
+ * sees.  POSIX requires this, and some userspace programs depend on it.
+ *
+ * This requires reading the symlink target from disk if needed, setting up the
+ * inode's encryption key if possible, and then decrypting or encoding the
+ * symlink target.  This makes lstat() more heavyweight than is normally the
+ * case.  However, decrypted symlink targets will be cached in ->i_link, so
+ * usually the symlink won't have to be read and decrypted again later if/when
+ * it is actually followed, readlink() is called, or lstat() is called again.
+ *
+ * Return: 0 on success, -errno on failure
+ */
+int fscrypt_symlink_getattr(const struct path *path, struct kstat *stat)
+{
+	struct dentry *dentry = path->dentry;
+	struct inode *inode = d_inode(dentry);
+	const char *link;
+	DEFINE_DELAYED_CALL(done);
+
+	/*
+	 * To get the symlink target that userspace will see (whether it's the
+	 * decrypted target or the no-key encoded target), we can just get it in
+	 * the same way the VFS does during path resolution and readlink().
+	 */
+	link = READ_ONCE(inode->i_link);
+	if (!link) {
+		link = inode->i_op->get_link(dentry, inode, &done);
+		if (IS_ERR(link))
+			return PTR_ERR(link);
+	}
+	stat->size = strlen(link);
+	do_delayed_call(&done);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(fscrypt_symlink_getattr);
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 2ea1387bb497b..b7bfd0cd4f3ef 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -253,6 +253,7 @@ int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
 const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
 				unsigned int max_size,
 				struct delayed_call *done);
+int fscrypt_symlink_getattr(const struct path *path, struct kstat *stat);
 static inline void fscrypt_set_ops(struct super_block *sb,
 				   const struct fscrypt_operations *s_cop)
 {
@@ -583,6 +584,12 @@ static inline const char *fscrypt_get_symlink(struct inode *inode,
 	return ERR_PTR(-EOPNOTSUPP);
 }
 
+static inline int fscrypt_symlink_getattr(const struct path *path,
+					  struct kstat *stat)
+{
+	return -EOPNOTSUPP;
+}
+
 static inline void fscrypt_set_ops(struct super_block *sb,
 				   const struct fscrypt_operations *s_cop)
 {
-- 
GitLab


From f480605b8901c921caa97ef87f2278ae4e3e8f34 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 1 Jul 2021 23:53:47 -0700
Subject: [PATCH 0892/4878] ext4: report correct st_size for encrypted symlinks

The stat() family of syscalls report the wrong size for encrypted
symlinks, which has caused breakage in several userspace programs.

Fix this by calling fscrypt_symlink_getattr() after ext4_getattr() for
encrypted symlinks.  This function computes the correct size by reading
and decrypting the symlink target (if it's not already cached).

For more details, see the commit which added fscrypt_symlink_getattr().

Fixes: f348c252320b ("ext4 crypto: add symlink encryption")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210702065350.209646-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/ext4/symlink.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index dd05af983092d..a9457fed351ed 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -52,10 +52,19 @@ static const char *ext4_encrypted_get_link(struct dentry *dentry,
 	return paddr;
 }
 
+static int ext4_encrypted_symlink_getattr(const struct path *path,
+					  struct kstat *stat, u32 request_mask,
+					  unsigned int query_flags)
+{
+	ext4_getattr(path, stat, request_mask, query_flags);
+
+	return fscrypt_symlink_getattr(path, stat);
+}
+
 const struct inode_operations ext4_encrypted_symlink_inode_operations = {
 	.get_link	= ext4_encrypted_get_link,
 	.setattr	= ext4_setattr,
-	.getattr	= ext4_getattr,
+	.getattr	= ext4_encrypted_symlink_getattr,
 	.listxattr	= ext4_listxattr,
 };
 
-- 
GitLab


From 693953396fe939344cc1a014b4e98ba9ad02854b Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 1 Jul 2021 23:53:48 -0700
Subject: [PATCH 0893/4878] f2fs: report correct st_size for encrypted symlinks

The stat() family of syscalls report the wrong size for encrypted
symlinks, which has caused breakage in several userspace programs.

Fix this by calling fscrypt_symlink_getattr() after f2fs_getattr() for
encrypted symlinks.  This function computes the correct size by reading
and decrypting the symlink target (if it's not already cached).

For more details, see the commit which added fscrypt_symlink_getattr().

Fixes: cbaf042a3cc6 ("f2fs crypto: add symlink encryption")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210702065350.209646-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/f2fs/namei.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 65c873a9235b1..b83b143382243 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -1321,9 +1321,18 @@ static const char *f2fs_encrypted_get_link(struct dentry *dentry,
 	return target;
 }
 
+static int f2fs_encrypted_symlink_getattr(const struct path *path,
+					  struct kstat *stat, u32 request_mask,
+					  unsigned int query_flags)
+{
+	f2fs_getattr(path, stat, request_mask, query_flags);
+
+	return fscrypt_symlink_getattr(path, stat);
+}
+
 const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
 	.get_link	= f2fs_encrypted_get_link,
-	.getattr	= f2fs_getattr,
+	.getattr	= f2fs_encrypted_symlink_getattr,
 	.setattr	= f2fs_setattr,
 	.listxattr	= f2fs_listxattr,
 };
-- 
GitLab


From 11498f195a5c142089a08570c8a4f36dccc9a68b Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 1 Jul 2021 23:53:50 -0700
Subject: [PATCH 0894/4878] fscrypt: remove mention of symlink st_size quirk
 from documentation

Now that the correct st_size is reported for encrypted symlinks on all
filesystems, update the documentation accordingly.

Link: https://lore.kernel.org/r/20210702065350.209646-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 Documentation/filesystems/fscrypt.rst | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 44b67ebd6e40d..02ec57818920a 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -1063,11 +1063,6 @@ astute users may notice some differences in behavior:
 
 - DAX (Direct Access) is not supported on encrypted files.
 
-- The st_size of an encrypted symlink will not necessarily give the
-  length of the symlink target as required by POSIX.  It will actually
-  give the length of the ciphertext, which will be slightly longer
-  than the plaintext due to NUL-padding and an extra 2-byte overhead.
-
 - The maximum length of an encrypted symlink is 2 bytes shorter than
   the maximum length of an unencrypted symlink.  For example, on an
   EXT4 filesystem with a 4K block size, unencrypted symlinks can be up
-- 
GitLab


From 33967a91bc673f1330f728c39b6c5b9f9dbd29e0 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Sat, 17 Jul 2021 19:01:25 -0500
Subject: [PATCH 0895/4878] fscrypt: align Base64 encoding with RFC 4648
 base64url

fscrypt uses a Base64 encoding to encode no-key filenames (the filenames
that are presented to userspace when a directory is listed without its
encryption key).  There are many variants of Base64, but the most common
ones are specified by RFC 4648.  fscrypt can't use the regular RFC 4648
"base64" variant because "base64" uses the '/' character, which isn't
allowed in filenames.  However, RFC 4648 also specifies a "base64url"
variant for use in URLs and filenames.  "base64url" is less common than
"base64", but it's still implemented in many programming libraries.

Unfortunately, what fscrypt actually uses is a custom Base64 variant
that differs from "base64url" in several ways:

- The binary data is divided into 6-bit chunks differently.

- Values 62 and 63 are encoded with '+' and ',' instead of '-' and '_'.

- '='-padding isn't used.  This isn't a problem per se, as the padding
  isn't technically necessary, and RFC 4648 doesn't strictly require it.
  But it needs to be properly documented.

There have been two attempts to copy the fscrypt Base64 code into lib/
(https://lkml.kernel.org/r/20200821182813.52570-6-jlayton@kernel.org and
https://lkml.kernel.org/r/20210716110428.9727-5-hare@suse.de), and both
have been caught up by the fscrypt Base64 variant being nonstandard and
not properly documented.  Also, the planned use of the fscrypt Base64
code in the CephFS storage back-end will prevent it from being changed
later (whereas currently it can still be changed), so we need to choose
an encoding that we're happy with before it's too late.

Therefore, switch the fscrypt Base64 variant to base64url, in order to
align more closely with RFC 4648 and other implementations and uses of
Base64.  However, I opted not to implement '='-padding, as '='-padding
adds complexity, is unnecessary, and isn't required by the RFC.

Link: https://lore.kernel.org/r/20210718000125.59701-1-ebiggers@kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 Documentation/filesystems/fscrypt.rst |  10 +--
 fs/crypto/fname.c                     | 106 ++++++++++++++++----------
 2 files changed, 70 insertions(+), 46 deletions(-)

diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 02ec57818920a..0eb799d9d05a2 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -1230,12 +1230,12 @@ the user-supplied name to get the ciphertext.
 
 Lookups without the key are more complicated.  The raw ciphertext may
 contain the ``\0`` and ``/`` characters, which are illegal in
-filenames.  Therefore, readdir() must base64-encode the ciphertext for
-presentation.  For most filenames, this works fine; on ->lookup(), the
-filesystem just base64-decodes the user-supplied name to get back to
-the raw ciphertext.
+filenames.  Therefore, readdir() must base64url-encode the ciphertext
+for presentation.  For most filenames, this works fine; on ->lookup(),
+the filesystem just base64url-decodes the user-supplied name to get
+back to the raw ciphertext.
 
-However, for very long filenames, base64 encoding would cause the
+However, for very long filenames, base64url encoding would cause the
 filename length to exceed NAME_MAX.  To prevent this, readdir()
 actually presents long filenames in an abbreviated form which encodes
 a strong "hash" of the ciphertext filename, along with the optional
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index f3cd592f5171c..850f346b85167 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -26,7 +26,7 @@
  * it to find the directory entry again if requested.  Naively, that would just
  * mean using the ciphertext filenames.  However, since the ciphertext filenames
  * can contain illegal characters ('\0' and '/'), they must be encoded in some
- * way.  We use base64.  But that can cause names to exceed NAME_MAX (255
+ * way.  We use base64url.  But that can cause names to exceed NAME_MAX (255
  * bytes), so we also need to use a strong hash to abbreviate long names.
  *
  * The filesystem may also need another kind of hash, the "dirhash", to quickly
@@ -38,7 +38,7 @@
  * casefolded directories use this type of dirhash.  At least in these cases,
  * each no-key name must include the name's dirhash too.
  *
- * To meet all these requirements, we base64-encode the following
+ * To meet all these requirements, we base64url-encode the following
  * variable-length structure.  It contains the dirhash, or 0's if the filesystem
  * didn't provide one; up to 149 bytes of the ciphertext name; and for
  * ciphertexts longer than 149 bytes, also the SHA-256 of the remaining bytes.
@@ -52,15 +52,19 @@ struct fscrypt_nokey_name {
 	u32 dirhash[2];
 	u8 bytes[149];
 	u8 sha256[SHA256_DIGEST_SIZE];
-}; /* 189 bytes => 252 bytes base64-encoded, which is <= NAME_MAX (255) */
+}; /* 189 bytes => 252 bytes base64url-encoded, which is <= NAME_MAX (255) */
 
 /*
- * Decoded size of max-size nokey name, i.e. a name that was abbreviated using
+ * Decoded size of max-size no-key name, i.e. a name that was abbreviated using
  * the strong hash and thus includes the 'sha256' field.  This isn't simply
  * sizeof(struct fscrypt_nokey_name), as the padding at the end isn't included.
  */
 #define FSCRYPT_NOKEY_NAME_MAX	offsetofend(struct fscrypt_nokey_name, sha256)
 
+/* Encoded size of max-size no-key name */
+#define FSCRYPT_NOKEY_NAME_MAX_ENCODED \
+		FSCRYPT_BASE64URL_CHARS(FSCRYPT_NOKEY_NAME_MAX)
+
 static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
 {
 	if (str->len == 1 && str->name[0] == '.')
@@ -175,62 +179,82 @@ static int fname_decrypt(const struct inode *inode,
 	return 0;
 }
 
-static const char lookup_table[65] =
-	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+,";
+static const char base64url_table[65] =
+	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
 
-#define BASE64_CHARS(nbytes)	DIV_ROUND_UP((nbytes) * 4, 3)
+#define FSCRYPT_BASE64URL_CHARS(nbytes)	DIV_ROUND_UP((nbytes) * 4, 3)
 
 /**
- * base64_encode() - base64-encode some bytes
- * @src: the bytes to encode
- * @len: number of bytes to encode
- * @dst: (output) the base64-encoded string.  Not NUL-terminated.
+ * fscrypt_base64url_encode() - base64url-encode some binary data
+ * @src: the binary data to encode
+ * @srclen: the length of @src in bytes
+ * @dst: (output) the base64url-encoded string.  Not NUL-terminated.
  *
- * Encodes the input string using characters from the set [A-Za-z0-9+,].
- * The encoded string is roughly 4/3 times the size of the input string.
+ * Encodes data using base64url encoding, i.e. the "Base 64 Encoding with URL
+ * and Filename Safe Alphabet" specified by RFC 4648.  '='-padding isn't used,
+ * as it's unneeded and not required by the RFC.  base64url is used instead of
+ * base64 to avoid the '/' character, which isn't allowed in filenames.
  *
- * Return: length of the encoded string
+ * Return: the length of the resulting base64url-encoded string in bytes.
+ *	   This will be equal to FSCRYPT_BASE64URL_CHARS(srclen).
  */
-static int base64_encode(const u8 *src, int len, char *dst)
+static int fscrypt_base64url_encode(const u8 *src, int srclen, char *dst)
 {
-	int i, bits = 0, ac = 0;
+	u32 ac = 0;
+	int bits = 0;
+	int i;
 	char *cp = dst;
 
-	for (i = 0; i < len; i++) {
-		ac += src[i] << bits;
+	for (i = 0; i < srclen; i++) {
+		ac = (ac << 8) | src[i];
 		bits += 8;
 		do {
-			*cp++ = lookup_table[ac & 0x3f];
-			ac >>= 6;
 			bits -= 6;
+			*cp++ = base64url_table[(ac >> bits) & 0x3f];
 		} while (bits >= 6);
 	}
 	if (bits)
-		*cp++ = lookup_table[ac & 0x3f];
+		*cp++ = base64url_table[(ac << (6 - bits)) & 0x3f];
 	return cp - dst;
 }
 
-static int base64_decode(const char *src, int len, u8 *dst)
+/**
+ * fscrypt_base64url_decode() - base64url-decode a string
+ * @src: the string to decode.  Doesn't need to be NUL-terminated.
+ * @srclen: the length of @src in bytes
+ * @dst: (output) the decoded binary data
+ *
+ * Decodes a string using base64url encoding, i.e. the "Base 64 Encoding with
+ * URL and Filename Safe Alphabet" specified by RFC 4648.  '='-padding isn't
+ * accepted, nor are non-encoding characters such as whitespace.
+ *
+ * This implementation hasn't been optimized for performance.
+ *
+ * Return: the length of the resulting decoded binary data in bytes,
+ *	   or -1 if the string isn't a valid base64url string.
+ */
+static int fscrypt_base64url_decode(const char *src, int srclen, u8 *dst)
 {
-	int i, bits = 0, ac = 0;
-	const char *p;
-	u8 *cp = dst;
+	u32 ac = 0;
+	int bits = 0;
+	int i;
+	u8 *bp = dst;
+
+	for (i = 0; i < srclen; i++) {
+		const char *p = strchr(base64url_table, src[i]);
 
-	for (i = 0; i < len; i++) {
-		p = strchr(lookup_table, src[i]);
 		if (p == NULL || src[i] == 0)
-			return -2;
-		ac += (p - lookup_table) << bits;
+			return -1;
+		ac = (ac << 6) | (p - base64url_table);
 		bits += 6;
 		if (bits >= 8) {
-			*cp++ = ac & 0xff;
-			ac >>= 8;
 			bits -= 8;
+			*bp++ = (u8)(ac >> bits);
 		}
 	}
-	if (ac)
+	if (ac & ((1 << bits) - 1))
 		return -1;
-	return cp - dst;
+	return bp - dst;
 }
 
 bool fscrypt_fname_encrypted_size(const union fscrypt_policy *policy,
@@ -263,10 +287,8 @@ bool fscrypt_fname_encrypted_size(const union fscrypt_policy *policy,
 int fscrypt_fname_alloc_buffer(u32 max_encrypted_len,
 			       struct fscrypt_str *crypto_str)
 {
-	const u32 max_encoded_len = BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX);
-	u32 max_presented_len;
-
-	max_presented_len = max(max_encoded_len, max_encrypted_len);
+	u32 max_presented_len = max_t(u32, FSCRYPT_NOKEY_NAME_MAX_ENCODED,
+				      max_encrypted_len);
 
 	crypto_str->name = kmalloc(max_presented_len + 1, GFP_NOFS);
 	if (!crypto_str->name)
@@ -342,7 +364,7 @@ int fscrypt_fname_disk_to_usr(const struct inode *inode,
 		     offsetof(struct fscrypt_nokey_name, bytes));
 	BUILD_BUG_ON(offsetofend(struct fscrypt_nokey_name, bytes) !=
 		     offsetof(struct fscrypt_nokey_name, sha256));
-	BUILD_BUG_ON(BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX) > NAME_MAX);
+	BUILD_BUG_ON(FSCRYPT_NOKEY_NAME_MAX_ENCODED > NAME_MAX);
 
 	if (hash) {
 		nokey_name.dirhash[0] = hash;
@@ -362,7 +384,8 @@ int fscrypt_fname_disk_to_usr(const struct inode *inode,
 		       nokey_name.sha256);
 		size = FSCRYPT_NOKEY_NAME_MAX;
 	}
-	oname->len = base64_encode((const u8 *)&nokey_name, size, oname->name);
+	oname->len = fscrypt_base64url_encode((const u8 *)&nokey_name, size,
+					      oname->name);
 	return 0;
 }
 EXPORT_SYMBOL(fscrypt_fname_disk_to_usr);
@@ -436,14 +459,15 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
 	 * user-supplied name
 	 */
 
-	if (iname->len > BASE64_CHARS(FSCRYPT_NOKEY_NAME_MAX))
+	if (iname->len > FSCRYPT_NOKEY_NAME_MAX_ENCODED)
 		return -ENOENT;
 
 	fname->crypto_buf.name = kmalloc(FSCRYPT_NOKEY_NAME_MAX, GFP_KERNEL);
 	if (fname->crypto_buf.name == NULL)
 		return -ENOMEM;
 
-	ret = base64_decode(iname->name, iname->len, fname->crypto_buf.name);
+	ret = fscrypt_base64url_decode(iname->name, iname->len,
+				       fname->crypto_buf.name);
 	if (ret < (int)offsetof(struct fscrypt_nokey_name, bytes[1]) ||
 	    (ret > offsetof(struct fscrypt_nokey_name, sha256) &&
 	     ret != FSCRYPT_NOKEY_NAME_MAX)) {
-- 
GitLab


From 40a53a7f737765280aa791657221f1303032ecfb Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 28 Jul 2021 21:37:28 -0700
Subject: [PATCH 0896/4878] fscrypt: document struct fscrypt_operations

Document all fields of struct fscrypt_operations so that it's more clear
what filesystems that use (or plan to use) fs/crypto/ need to implement.

Link: https://lore.kernel.org/r/20210729043728.18480-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 include/linux/fscrypt.h | 109 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 105 insertions(+), 4 deletions(-)

diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index b7bfd0cd4f3ef..e912ed9141d9d 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -47,27 +47,128 @@ struct fscrypt_name {
 #define FSCRYPT_SET_CONTEXT_MAX_SIZE	40
 
 #ifdef CONFIG_FS_ENCRYPTION
+
 /*
- * fscrypt superblock flags
+ * If set, the fscrypt bounce page pool won't be allocated (unless another
+ * filesystem needs it).  Set this if the filesystem always uses its own bounce
+ * pages for writes and therefore won't need the fscrypt bounce page pool.
  */
 #define FS_CFLG_OWN_PAGES (1U << 1)
 
-/*
- * crypto operations for filesystems
- */
+/* Crypto operations for filesystems */
 struct fscrypt_operations {
+
+	/* Set of optional flags; see above for allowed flags */
 	unsigned int flags;
+
+	/*
+	 * If set, this is a filesystem-specific key description prefix that
+	 * will be accepted for "logon" keys for v1 fscrypt policies, in
+	 * addition to the generic prefix "fscrypt:".  This functionality is
+	 * deprecated, so new filesystems shouldn't set this field.
+	 */
 	const char *key_prefix;
+
+	/*
+	 * Get the fscrypt context of the given inode.
+	 *
+	 * @inode: the inode whose context to get
+	 * @ctx: the buffer into which to get the context
+	 * @len: length of the @ctx buffer in bytes
+	 *
+	 * Return: On success, returns the length of the context in bytes; this
+	 *	   may be less than @len.  On failure, returns -ENODATA if the
+	 *	   inode doesn't have a context, -ERANGE if the context is
+	 *	   longer than @len, or another -errno code.
+	 */
 	int (*get_context)(struct inode *inode, void *ctx, size_t len);
+
+	/*
+	 * Set an fscrypt context on the given inode.
+	 *
+	 * @inode: the inode whose context to set.  The inode won't already have
+	 *	   an fscrypt context.
+	 * @ctx: the context to set
+	 * @len: length of @ctx in bytes (at most FSCRYPT_SET_CONTEXT_MAX_SIZE)
+	 * @fs_data: If called from fscrypt_set_context(), this will be the
+	 *	     value the filesystem passed to fscrypt_set_context().
+	 *	     Otherwise (i.e. when called from
+	 *	     FS_IOC_SET_ENCRYPTION_POLICY) this will be NULL.
+	 *
+	 * i_rwsem will be held for write.
+	 *
+	 * Return: 0 on success, -errno on failure.
+	 */
 	int (*set_context)(struct inode *inode, const void *ctx, size_t len,
 			   void *fs_data);
+
+	/*
+	 * Get the dummy fscrypt policy in use on the filesystem (if any).
+	 *
+	 * Filesystems only need to implement this function if they support the
+	 * test_dummy_encryption mount option.
+	 *
+	 * Return: A pointer to the dummy fscrypt policy, if the filesystem is
+	 *	   mounted with test_dummy_encryption; otherwise NULL.
+	 */
 	const union fscrypt_policy *(*get_dummy_policy)(struct super_block *sb);
+
+	/*
+	 * Check whether a directory is empty.  i_rwsem will be held for write.
+	 */
 	bool (*empty_dir)(struct inode *inode);
+
+	/* The filesystem's maximum ciphertext filename length, in bytes */
 	unsigned int max_namelen;
+
+	/*
+	 * Check whether the filesystem's inode numbers and UUID are stable,
+	 * meaning that they will never be changed even by offline operations
+	 * such as filesystem shrinking and therefore can be used in the
+	 * encryption without the possibility of files becoming unreadable.
+	 *
+	 * Filesystems only need to implement this function if they want to
+	 * support the FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{32,64} flags.  These
+	 * flags are designed to work around the limitations of UFS and eMMC
+	 * inline crypto hardware, and they shouldn't be used in scenarios where
+	 * such hardware isn't being used.
+	 *
+	 * Leaving this NULL is equivalent to always returning false.
+	 */
 	bool (*has_stable_inodes)(struct super_block *sb);
+
+	/*
+	 * Get the number of bits that the filesystem uses to represent inode
+	 * numbers and file logical block numbers.
+	 *
+	 * By default, both of these are assumed to be 64-bit.  This function
+	 * can be implemented to declare that either or both of these numbers is
+	 * shorter, which may allow the use of the
+	 * FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{32,64} flags and/or the use of
+	 * inline crypto hardware whose maximum DUN length is less than 64 bits
+	 * (e.g., eMMC v5.2 spec compliant hardware).  This function only needs
+	 * to be implemented if support for one of these features is needed.
+	 */
 	void (*get_ino_and_lblk_bits)(struct super_block *sb,
 				      int *ino_bits_ret, int *lblk_bits_ret);
+
+	/*
+	 * Return the number of block devices to which the filesystem may write
+	 * encrypted file contents.
+	 *
+	 * If the filesystem can use multiple block devices (other than block
+	 * devices that aren't used for encrypted file contents, such as
+	 * external journal devices), and wants to support inline encryption,
+	 * then it must implement this function.  Otherwise it's not needed.
+	 */
 	int (*get_num_devices)(struct super_block *sb);
+
+	/*
+	 * If ->get_num_devices() returns a value greater than 1, then this
+	 * function is called to get the array of request_queues that the
+	 * filesystem is using -- one per block device.  (There may be duplicate
+	 * entries in this array, as block devices can share a request_queue.)
+	 */
 	void (*get_devices)(struct super_block *sb,
 			    struct request_queue **devs);
 };
-- 
GitLab


From 210b642421811e8f94770596f8e944dfcc5c6a38 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 16 Sep 2021 13:34:24 -0700
Subject: [PATCH 0897/4878] fs-verity: fix signed integer overflow with i_size
 near S64_MAX

If the file size is almost S64_MAX, the calculated number of Merkle tree
levels exceeds FS_VERITY_MAX_LEVELS, causing FS_IOC_ENABLE_VERITY to
fail.  This is unintentional, since as the comment above the definition
of FS_VERITY_MAX_LEVELS states, it is enough for over U64_MAX bytes of
data using SHA-256 and 4K blocks.  (Specifically, 4096*128**8 >= 2**64.)

The bug is actually that when the number of blocks in the first level is
calculated from i_size, there is a signed integer overflow due to i_size
being signed.  Fix this by treating i_size as unsigned.

This was found by the new test "generic: test fs-verity EFBIG scenarios"
(https://lkml.kernel.org/r/b1d116cd4d0ea74b9cd86f349c672021e005a75c.1631558495.git.boris@bur.io).

This didn't affect ext4 or f2fs since those have a smaller maximum file
size, but it did affect btrfs which allows files up to S64_MAX bytes.

Reported-by: Boris Burkov <boris@bur.io>
Fixes: 3fda4c617e84 ("fs-verity: implement FS_IOC_ENABLE_VERITY ioctl")
Fixes: fd2d1acfcadf ("fs-verity: add the hook for file ->open()")
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Boris Burkov <boris@bur.io>
Link: https://lore.kernel.org/r/20210916203424.113376-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/verity/enable.c | 2 +-
 fs/verity/open.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/verity/enable.c b/fs/verity/enable.c
index f7e997a01ad07..bed2b10dfe3b7 100644
--- a/fs/verity/enable.c
+++ b/fs/verity/enable.c
@@ -177,7 +177,7 @@ static int build_merkle_tree(struct file *filp,
 	 * (level 0) and ascending to the root node (level 'num_levels - 1').
 	 * Then at the end (level 'num_levels'), calculate the root hash.
 	 */
-	blocks = (inode->i_size + params->block_size - 1) >>
+	blocks = ((u64)inode->i_size + params->block_size - 1) >>
 		 params->log_blocksize;
 	for (level = 0; level <= params->num_levels; level++) {
 		err = build_merkle_tree_level(filp, level, blocks, params,
diff --git a/fs/verity/open.c b/fs/verity/open.c
index 60ff8af7219fe..92df87f5fa388 100644
--- a/fs/verity/open.c
+++ b/fs/verity/open.c
@@ -89,7 +89,7 @@ int fsverity_init_merkle_tree_params(struct merkle_tree_params *params,
 	 */
 
 	/* Compute number of levels and the number of blocks in each level */
-	blocks = (inode->i_size + params->block_size - 1) >> log_blocksize;
+	blocks = ((u64)inode->i_size + params->block_size - 1) >> log_blocksize;
 	pr_debug("Data is %lld bytes (%llu blocks)\n", inode->i_size, blocks);
 	while (blocks > 1) {
 		if (params->num_levels >= FS_VERITY_MAX_LEVELS) {
-- 
GitLab


From de44922c38b57af0bb8fdc43cfc3bf80be38d1b9 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 9 Sep 2021 11:45:13 -0700
Subject: [PATCH 0898/4878] fscrypt: remove fscrypt_operations::max_namelen

The max_namelen field is unnecessary, as it is set to 255 (NAME_MAX) on
all filesystems that support fscrypt (or plan to support fscrypt).  For
simplicity, just use NAME_MAX directly instead.

Link: https://lore.kernel.org/r/20210909184513.139281-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/fname.c       | 3 +--
 fs/ext4/super.c         | 1 -
 fs/f2fs/super.c         | 1 -
 fs/ubifs/crypto.c       | 1 -
 include/linux/fscrypt.h | 3 ---
 5 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 850f346b85167..19ee4e82eb8d5 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -433,8 +433,7 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
 
 	if (fscrypt_has_encryption_key(dir)) {
 		if (!fscrypt_fname_encrypted_size(&dir->i_crypt_info->ci_policy,
-						  iname->len,
-						  dir->i_sb->s_cop->max_namelen,
+						  iname->len, NAME_MAX,
 						  &fname->crypto_buf.len))
 			return -ENAMETOOLONG;
 		fname->crypto_buf.name = kmalloc(fname->crypto_buf.len,
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2d111aa7f7221..dc9bab934d083 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1594,7 +1594,6 @@ static const struct fscrypt_operations ext4_cryptops = {
 	.set_context		= ext4_set_context,
 	.get_dummy_policy	= ext4_get_dummy_policy,
 	.empty_dir		= ext4_empty_dir,
-	.max_namelen		= EXT4_NAME_LEN,
 	.has_stable_inodes	= ext4_has_stable_inodes,
 	.get_ino_and_lblk_bits	= ext4_get_ino_and_lblk_bits,
 };
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fcc4dfae9f70e..180e9a6b1840d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3004,7 +3004,6 @@ static const struct fscrypt_operations f2fs_cryptops = {
 	.set_context		= f2fs_set_context,
 	.get_dummy_policy	= f2fs_get_dummy_policy,
 	.empty_dir		= f2fs_empty_dir,
-	.max_namelen		= F2FS_NAME_LEN,
 	.has_stable_inodes	= f2fs_has_stable_inodes,
 	.get_ino_and_lblk_bits	= f2fs_get_ino_and_lblk_bits,
 	.get_num_devices	= f2fs_get_num_devices,
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 22be7aeb96c4f..c57b46a352d8f 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -82,5 +82,4 @@ const struct fscrypt_operations ubifs_crypt_operations = {
 	.get_context		= ubifs_crypt_get_context,
 	.set_context		= ubifs_crypt_set_context,
 	.empty_dir		= ubifs_crypt_empty_dir,
-	.max_namelen		= UBIFS_MAX_NLEN,
 };
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index e912ed9141d9d..91ea9477e9bd2 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -118,9 +118,6 @@ struct fscrypt_operations {
 	 */
 	bool (*empty_dir)(struct inode *inode);
 
-	/* The filesystem's maximum ciphertext filename length, in bytes */
-	unsigned int max_namelen;
-
 	/*
 	 * Check whether the filesystem's inode numbers and UUID are stable,
 	 * meaning that they will never be changed even by offline operations
-- 
GitLab


From 7199e1a4ac8a201edcf26a5f26a787fb9c206318 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 9 Sep 2021 12:07:37 -0700
Subject: [PATCH 0899/4878] fscrypt: clean up comments in bio.c

The file comment in bio.c is almost completely irrelevant to the actual
contents of the file; it was originally copied from crypto.c.  Fix it
up, and also add a kerneldoc comment for fscrypt_decrypt_bio().

Link: https://lore.kernel.org/r/20210909190737.140841-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/bio.c | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c
index b048a0e385162..d507cc1f12eb9 100644
--- a/fs/crypto/bio.c
+++ b/fs/crypto/bio.c
@@ -1,23 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * This contains encryption functions for per-file encryption.
+ * Utility functions for file contents encryption/decryption on
+ * block device-based filesystems.
  *
  * Copyright (C) 2015, Google, Inc.
  * Copyright (C) 2015, Motorola Mobility
- *
- * Written by Michael Halcrow, 2014.
- *
- * Filename encryption additions
- *	Uday Savagaonkar, 2014
- * Encryption policy handling additions
- *	Ildar Muslukhov, 2014
- * Add fscrypt_pullback_bio_page()
- *	Jaegeuk Kim, 2015.
- *
- * This has not yet undergone a rigorous security audit.
- *
- * The usage of AES-XTS should conform to recommendations in NIST
- * Special Publication 800-38E and IEEE P1619/D16.
  */
 
 #include <linux/pagemap.h>
@@ -26,6 +13,21 @@
 #include <linux/namei.h>
 #include "fscrypt_private.h"
 
+/**
+ * fscrypt_decrypt_bio() - decrypt the contents of a bio
+ * @bio: the bio to decrypt
+ *
+ * Decrypt the contents of a "read" bio following successful completion of the
+ * underlying disk read.  The bio must be reading a whole number of blocks of an
+ * encrypted file directly into the page cache.  If the bio is reading the
+ * ciphertext into bounce pages instead of the page cache (for example, because
+ * the file is also compressed, so decompression is required after decryption),
+ * then this function isn't applicable.  This function may sleep, so it must be
+ * called from a workqueue rather than from the bio's bi_end_io callback.
+ *
+ * This function sets PG_error on any pages that contain any blocks that failed
+ * to be decrypted.  The filesystem must not mark such pages uptodate.
+ */
 void fscrypt_decrypt_bio(struct bio *bio)
 {
 	struct bio_vec *bv;
-- 
GitLab


From 1c5e87c5327c9f6abcdb0d9e223b8e4222f9934d Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 16 Sep 2021 10:49:26 -0700
Subject: [PATCH 0900/4878] fscrypt: improve documentation for inline
 encryption

Currently the fscrypt inline encryption support is documented in the
"Implementation details" section, and it doesn't go into much detail.
It's really more than just an "implementation detail" though, as there
is a user-facing mount option.  Also, hardware-wrapped key support (an
upcoming feature) will depend on inline encryption and will affect the
on-disk format; by definition that's not just an implementation detail.

Therefore, move this documentation into its own section and expand it.

Link: https://lore.kernel.org/r/20210916174928.65529-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 Documentation/block/inline-encryption.rst |  2 +
 Documentation/filesystems/fscrypt.rst     | 73 +++++++++++++++++------
 2 files changed, 58 insertions(+), 17 deletions(-)

diff --git a/Documentation/block/inline-encryption.rst b/Documentation/block/inline-encryption.rst
index e75151e467d39..5e50f75298534 100644
--- a/Documentation/block/inline-encryption.rst
+++ b/Documentation/block/inline-encryption.rst
@@ -1,5 +1,7 @@
 .. SPDX-License-Identifier: GPL-2.0
 
+.. _inline_encryption:
+
 =================
 Inline Encryption
 =================
diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 0eb799d9d05a2..d6f6495b56c0c 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -77,11 +77,11 @@ Side-channel attacks
 
 fscrypt is only resistant to side-channel attacks, such as timing or
 electromagnetic attacks, to the extent that the underlying Linux
-Cryptographic API algorithms are.  If a vulnerable algorithm is used,
-such as a table-based implementation of AES, it may be possible for an
-attacker to mount a side channel attack against the online system.
-Side channel attacks may also be mounted against applications
-consuming decrypted data.
+Cryptographic API algorithms or inline encryption hardware are.  If a
+vulnerable algorithm is used, such as a table-based implementation of
+AES, it may be possible for an attacker to mount a side channel attack
+against the online system.  Side channel attacks may also be mounted
+against applications consuming decrypted data.
 
 Unauthorized file access
 ~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1135,6 +1135,50 @@ where applications may later write sensitive data.  It is recommended
 that systems implementing a form of "verified boot" take advantage of
 this by validating all top-level encryption policies prior to access.
 
+Inline encryption support
+=========================
+
+By default, fscrypt uses the kernel crypto API for all cryptographic
+operations (other than HKDF, which fscrypt partially implements
+itself).  The kernel crypto API supports hardware crypto accelerators,
+but only ones that work in the traditional way where all inputs and
+outputs (e.g. plaintexts and ciphertexts) are in memory.  fscrypt can
+take advantage of such hardware, but the traditional acceleration
+model isn't particularly efficient and fscrypt hasn't been optimized
+for it.
+
+Instead, many newer systems (especially mobile SoCs) have *inline
+encryption hardware* that can encrypt/decrypt data while it is on its
+way to/from the storage device.  Linux supports inline encryption
+through a set of extensions to the block layer called *blk-crypto*.
+blk-crypto allows filesystems to attach encryption contexts to bios
+(I/O requests) to specify how the data will be encrypted or decrypted
+in-line.  For more information about blk-crypto, see
+:ref:`Documentation/block/inline-encryption.rst <inline_encryption>`.
+
+On supported filesystems (currently ext4 and f2fs), fscrypt can use
+blk-crypto instead of the kernel crypto API to encrypt/decrypt file
+contents.  To enable this, set CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y in
+the kernel configuration, and specify the "inlinecrypt" mount option
+when mounting the filesystem.
+
+Note that the "inlinecrypt" mount option just specifies to use inline
+encryption when possible; it doesn't force its use.  fscrypt will
+still fall back to using the kernel crypto API on files where the
+inline encryption hardware doesn't have the needed crypto capabilities
+(e.g. support for the needed encryption algorithm and data unit size)
+and where blk-crypto-fallback is unusable.  (For blk-crypto-fallback
+to be usable, it must be enabled in the kernel configuration with
+CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK=y.)
+
+Currently fscrypt always uses the filesystem block size (which is
+usually 4096 bytes) as the data unit size.  Therefore, it can only use
+inline encryption hardware that supports that data unit size.
+
+Inline encryption doesn't affect the ciphertext or other aspects of
+the on-disk format, so users may freely switch back and forth between
+using "inlinecrypt" and not using "inlinecrypt".
+
 Implementation details
 ======================
 
@@ -1184,6 +1228,13 @@ keys`_ and `DIRECT_KEY policies`_.
 Data path changes
 -----------------
 
+When inline encryption is used, filesystems just need to associate
+encryption contexts with bios to specify how the block layer or the
+inline encryption hardware will encrypt/decrypt the file contents.
+
+When inline encryption isn't used, filesystems must encrypt/decrypt
+the file contents themselves, as described below:
+
 For the read path (->readpage()) of regular files, filesystems can
 read the ciphertext into the page cache and decrypt it in-place.  The
 page lock must be held until decryption has finished, to prevent the
@@ -1197,18 +1248,6 @@ buffer.  Some filesystems, such as UBIFS, already use temporary
 buffers regardless of encryption.  Other filesystems, such as ext4 and
 F2FS, have to allocate bounce pages specially for encryption.
 
-Fscrypt is also able to use inline encryption hardware instead of the
-kernel crypto API for en/decryption of file contents.  When possible,
-and if directed to do so (by specifying the 'inlinecrypt' mount option
-for an ext4/F2FS filesystem), it adds encryption contexts to bios and
-uses blk-crypto to perform the en/decryption instead of making use of
-the above read/write path changes.  Of course, even if directed to
-make use of inline encryption, fscrypt will only be able to do so if
-either hardware inline encryption support is available for the
-selected encryption algorithm or CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK
-is selected.  If neither is the case, fscrypt will fall back to using
-the above mentioned read/write path changes for en/decryption.
-
 Filename hashing and encoding
 -----------------------------
 
-- 
GitLab


From 92372b371974de88c92eb8a0fc5b7664ed957fb2 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 20 Sep 2021 20:03:03 -0700
Subject: [PATCH 0901/4878] fscrypt: allow 256-bit master keys with AES-256-XTS

fscrypt currently requires a 512-bit master key when AES-256-XTS is
used, since AES-256-XTS keys are 512-bit and fscrypt requires that the
master key be at least as long any key that will be derived from it.

However, this is overly strict because AES-256-XTS doesn't actually have
a 512-bit security strength, but rather 256-bit.  The fact that XTS
takes twice the expected key size is a quirk of the XTS mode.  It is
sufficient to use 256 bits of entropy for AES-256-XTS, provided that it
is first properly expanded into a 512-bit key, which HKDF-SHA512 does.

Therefore, relax the check of the master key size to use the security
strength of the derived key rather than the size of the derived key
(except for v1 encryption policies, which don't use HKDF).

Besides making things more flexible for userspace, this is needed in
order for the use of a KDF which only takes a 256-bit key to be
introduced into the fscrypt key hierarchy.  This will happen with
hardware-wrapped keys support, as all known hardware which supports that
feature uses an SP800-108 KDF using AES-256-CMAC, so the wrapped keys
are wrapped 256-bit AES keys.  Moreover, there is interest in fscrypt
supporting the same type of AES-256-CMAC based KDF in software as an
alternative to HKDF-SHA512.  There is no security problem with such
features, so fix the key length check to work properly with them.

Reviewed-by: Paul Crowley <paulcrowley@google.com>
Link: https://lore.kernel.org/r/20210921030303.5598-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 Documentation/filesystems/fscrypt.rst | 10 ++---
 fs/crypto/fscrypt_private.h           |  5 ++-
 fs/crypto/hkdf.c                      | 11 ++++--
 fs/crypto/keysetup.c                  | 57 +++++++++++++++++++++------
 4 files changed, 61 insertions(+), 22 deletions(-)

diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index d6f6495b56c0c..4d5d50dca65c6 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -176,11 +176,11 @@ Master Keys
 
 Each encrypted directory tree is protected by a *master key*.  Master
 keys can be up to 64 bytes long, and must be at least as long as the
-greater of the key length needed by the contents and filenames
-encryption modes being used.  For example, if AES-256-XTS is used for
-contents encryption, the master key must be 64 bytes (512 bits).  Note
-that the XTS mode is defined to require a key twice as long as that
-required by the underlying block cipher.
+greater of the security strength of the contents and filenames
+encryption modes being used.  For example, if any AES-256 mode is
+used, the master key must be at least 256 bits, i.e. 32 bytes.  A
+stricter requirement applies if the key is used by a v1 encryption
+policy and AES-256-XTS is used; such keys must be 64 bytes.
 
 To "unlock" an encrypted directory tree, userspace must provide the
 appropriate master key.  There can be any number of master keys, each
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 3fa965eb3336d..cb25ef0cdf1f3 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -549,8 +549,9 @@ int __init fscrypt_init_keyring(void);
 struct fscrypt_mode {
 	const char *friendly_name;
 	const char *cipher_str;
-	int keysize;
-	int ivsize;
+	int keysize;		/* key size in bytes */
+	int security_strength;	/* security strength in bytes */
+	int ivsize;		/* IV size in bytes */
 	int logged_impl_name;
 	enum blk_crypto_mode_num blk_crypto_mode;
 };
diff --git a/fs/crypto/hkdf.c b/fs/crypto/hkdf.c
index 0cba7928446d3..24172bf3e8c6f 100644
--- a/fs/crypto/hkdf.c
+++ b/fs/crypto/hkdf.c
@@ -16,9 +16,14 @@
 
 /*
  * HKDF supports any unkeyed cryptographic hash algorithm, but fscrypt uses
- * SHA-512 because it is reasonably secure and efficient; and since it produces
- * a 64-byte digest, deriving an AES-256-XTS key preserves all 64 bytes of
- * entropy from the master key and requires only one iteration of HKDF-Expand.
+ * SHA-512 because it is well-established, secure, and reasonably efficient.
+ *
+ * HKDF-SHA256 was also considered, as its 256-bit security strength would be
+ * sufficient here.  A 512-bit security strength is "nice to have", though.
+ * Also, on 64-bit CPUs, SHA-512 is usually just as fast as SHA-256.  In the
+ * common case of deriving an AES-256-XTS key (512 bits), that can result in
+ * HKDF-SHA512 being much faster than HKDF-SHA256, as the longer digest size of
+ * SHA-512 causes HKDF-Expand to only need to do one iteration rather than two.
  */
 #define HKDF_HMAC_ALG		"hmac(sha512)"
 #define HKDF_HASHLEN		SHA512_DIGEST_SIZE
diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
index 261293fb70974..a7c77050a943e 100644
--- a/fs/crypto/keysetup.c
+++ b/fs/crypto/keysetup.c
@@ -19,6 +19,7 @@ struct fscrypt_mode fscrypt_modes[] = {
 		.friendly_name = "AES-256-XTS",
 		.cipher_str = "xts(aes)",
 		.keysize = 64,
+		.security_strength = 32,
 		.ivsize = 16,
 		.blk_crypto_mode = BLK_ENCRYPTION_MODE_AES_256_XTS,
 	},
@@ -26,12 +27,14 @@ struct fscrypt_mode fscrypt_modes[] = {
 		.friendly_name = "AES-256-CTS-CBC",
 		.cipher_str = "cts(cbc(aes))",
 		.keysize = 32,
+		.security_strength = 32,
 		.ivsize = 16,
 	},
 	[FSCRYPT_MODE_AES_128_CBC] = {
 		.friendly_name = "AES-128-CBC-ESSIV",
 		.cipher_str = "essiv(cbc(aes),sha256)",
 		.keysize = 16,
+		.security_strength = 16,
 		.ivsize = 16,
 		.blk_crypto_mode = BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV,
 	},
@@ -39,12 +42,14 @@ struct fscrypt_mode fscrypt_modes[] = {
 		.friendly_name = "AES-128-CTS-CBC",
 		.cipher_str = "cts(cbc(aes))",
 		.keysize = 16,
+		.security_strength = 16,
 		.ivsize = 16,
 	},
 	[FSCRYPT_MODE_ADIANTUM] = {
 		.friendly_name = "Adiantum",
 		.cipher_str = "adiantum(xchacha12,aes)",
 		.keysize = 32,
+		.security_strength = 32,
 		.ivsize = 32,
 		.blk_crypto_mode = BLK_ENCRYPTION_MODE_ADIANTUM,
 	},
@@ -333,6 +338,45 @@ static int fscrypt_setup_v2_file_key(struct fscrypt_info *ci,
 	return 0;
 }
 
+/*
+ * Check whether the size of the given master key (@mk) is appropriate for the
+ * encryption settings which a particular file will use (@ci).
+ *
+ * If the file uses a v1 encryption policy, then the master key must be at least
+ * as long as the derived key, as this is a requirement of the v1 KDF.
+ *
+ * Otherwise, the KDF can accept any size key, so we enforce a slightly looser
+ * requirement: we require that the size of the master key be at least the
+ * maximum security strength of any algorithm whose key will be derived from it
+ * (but in practice we only need to consider @ci->ci_mode, since any other
+ * possible subkeys such as DIRHASH and INODE_HASH will never increase the
+ * required key size over @ci->ci_mode).  This allows AES-256-XTS keys to be
+ * derived from a 256-bit master key, which is cryptographically sufficient,
+ * rather than requiring a 512-bit master key which is unnecessarily long.  (We
+ * still allow 512-bit master keys if the user chooses to use them, though.)
+ */
+static bool fscrypt_valid_master_key_size(const struct fscrypt_master_key *mk,
+					  const struct fscrypt_info *ci)
+{
+	unsigned int min_keysize;
+
+	if (ci->ci_policy.version == FSCRYPT_POLICY_V1)
+		min_keysize = ci->ci_mode->keysize;
+	else
+		min_keysize = ci->ci_mode->security_strength;
+
+	if (mk->mk_secret.size < min_keysize) {
+		fscrypt_warn(NULL,
+			     "key with %s %*phN is too short (got %u bytes, need %u+ bytes)",
+			     master_key_spec_type(&mk->mk_spec),
+			     master_key_spec_len(&mk->mk_spec),
+			     (u8 *)&mk->mk_spec.u,
+			     mk->mk_secret.size, min_keysize);
+		return false;
+	}
+	return true;
+}
+
 /*
  * Find the master key, then set up the inode's actual encryption key.
  *
@@ -398,18 +442,7 @@ static int setup_file_encryption_key(struct fscrypt_info *ci,
 		goto out_release_key;
 	}
 
-	/*
-	 * Require that the master key be at least as long as the derived key.
-	 * Otherwise, the derived key cannot possibly contain as much entropy as
-	 * that required by the encryption mode it will be used for.  For v1
-	 * policies it's also required for the KDF to work at all.
-	 */
-	if (mk->mk_secret.size < ci->ci_mode->keysize) {
-		fscrypt_warn(NULL,
-			     "key with %s %*phN is too short (got %u bytes, need %u+ bytes)",
-			     master_key_spec_type(&mk_spec),
-			     master_key_spec_len(&mk_spec), (u8 *)&mk_spec.u,
-			     mk->mk_secret.size, ci->ci_mode->keysize);
+	if (!fscrypt_valid_master_key_size(mk, ci)) {
 		err = -ENOKEY;
 		goto out_release_key;
 	}
-- 
GitLab


From 5d077c9350c627023c2200b078a3a9868c7132f1 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 25 Oct 2021 19:10:42 -0700
Subject: [PATCH 0902/4878] fscrypt: improve a few comments

Improve a few comments.  These were extracted from the patch
"fscrypt: add support for hardware-wrapped keys"
(https://lore.kernel.org/r/20211021181608.54127-4-ebiggers@kernel.org).

Link: https://lore.kernel.org/r/20211026021042.6581-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/fscrypt_private.h | 11 ++++++++++-
 fs/crypto/keysetup.c        |  5 +++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index cb25ef0cdf1f3..5b0a9e6478b5d 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -20,6 +20,11 @@
 
 #define FSCRYPT_FILE_NONCE_SIZE	16
 
+/*
+ * Minimum size of an fscrypt master key.  Note: a longer key will be required
+ * if ciphers with a 256-bit security strength are used.  This is just the
+ * absolute minimum, which applies when only 128-bit encryption is used.
+ */
 #define FSCRYPT_MIN_KEY_SIZE	16
 
 #define FSCRYPT_CONTEXT_V1	1
@@ -413,7 +418,11 @@ struct fscrypt_master_key_secret {
 	 */
 	struct fscrypt_hkdf	hkdf;
 
-	/* Size of the raw key in bytes.  Set even if ->raw isn't set. */
+	/*
+	 * Size of the raw key in bytes.  This remains set even if ->raw was
+	 * zeroized due to no longer being needed.  I.e. we still remember the
+	 * size of the key even if we don't need to remember the key itself.
+	 */
 	u32			size;
 
 	/* For v1 policy keys: the raw key.  Wiped for v2 policy keys. */
diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
index a7c77050a943e..56c80e11b1ddd 100644
--- a/fs/crypto/keysetup.c
+++ b/fs/crypto/keysetup.c
@@ -122,8 +122,9 @@ err_free_tfm:
 
 /*
  * Prepare the crypto transform object or blk-crypto key in @prep_key, given the
- * raw key, encryption mode, and flag indicating which encryption implementation
- * (fs-layer or blk-crypto) will be used.
+ * raw key, encryption mode (@ci->ci_mode), flag indicating which encryption
+ * implementation (fs-layer or blk-crypto) will be used (@ci->ci_inlinecrypt),
+ * and IV generation method (@ci->ci_policy.flags).
  */
 int fscrypt_prepare_key(struct fscrypt_prepared_key *prep_key,
 			const u8 *raw_key, const struct fscrypt_info *ci)
-- 
GitLab


From 8279e932ee4e6d743658aa04b6ec84436c5c2fc8 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Thu, 14 Oct 2021 14:57:44 +0800
Subject: [PATCH 0903/4878] erofs: remove the fast path of per-CPU buffer
 decompression

As Xiang mentioned, such path has no real impact to our current
decompression strategy, remove it directly. Also, update the return
value of z_erofs_lz4_decompress() to 0 if success to keep consistent
with LZMA which will return 0 as well for that case.

Link: https://lore.kernel.org/r/20211014065744.1787-1-zbestahu@gmail.com
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/decompressor.c | 63 ++++++-----------------------------------
 1 file changed, 8 insertions(+), 55 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index a5bc4b1b7813e..dce06ac618933 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -242,6 +242,8 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 		if (ret >= 0)
 			memset(out + ret, 0, rq->outputsize - ret);
 		ret = -EIO;
+	} else {
+		ret = 0;
 	}
 
 	if (maptype == 0) {
@@ -268,33 +270,6 @@ static struct z_erofs_decompressor decompressors[] = {
 	},
 };
 
-static void copy_from_pcpubuf(struct page **out, const char *dst,
-			      unsigned short pageofs_out,
-			      unsigned int outputsize)
-{
-	const char *end = dst + outputsize;
-	const unsigned int righthalf = PAGE_SIZE - pageofs_out;
-	const char *cur = dst - pageofs_out;
-
-	while (cur < end) {
-		struct page *const page = *out++;
-
-		if (page) {
-			char *buf = kmap_atomic(page);
-
-			if (cur >= dst) {
-				memcpy(buf, cur, min_t(uint, PAGE_SIZE,
-						       end - cur));
-			} else {
-				memcpy(buf + pageofs_out, cur + pageofs_out,
-				       min_t(uint, righthalf, end - cur));
-			}
-			kunmap_atomic(buf);
-		}
-		cur += PAGE_SIZE;
-	}
-}
-
 static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
 				      struct list_head *pagepool)
 {
@@ -305,34 +280,12 @@ static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
 	void *dst;
 	int ret;
 
-	/* two optimized fast paths only for non bigpcluster cases yet */
-	if (rq->inputsize <= PAGE_SIZE) {
-		if (nrpages_out == 1 && !rq->inplace_io) {
-			DBG_BUGON(!*rq->out);
-			dst = kmap_atomic(*rq->out);
-			dst_maptype = 0;
-			goto dstmap_out;
-		}
-
-		/*
-		 * For the case of small output size (especially much less
-		 * than PAGE_SIZE), memcpy the decompressed data rather than
-		 * compressed data is preferred.
-		 */
-		if (rq->outputsize <= PAGE_SIZE * 7 / 8) {
-			dst = erofs_get_pcpubuf(1);
-			if (IS_ERR(dst))
-				return PTR_ERR(dst);
-
-			rq->inplace_io = false;
-			ret = alg->decompress(rq, dst);
-			if (!ret)
-				copy_from_pcpubuf(rq->out, dst, rq->pageofs_out,
-						  rq->outputsize);
-
-			erofs_put_pcpubuf(dst);
-			return ret;
-		}
+	/* one optimized fast path only for non bigpcluster cases yet */
+	if (rq->inputsize <= PAGE_SIZE && nrpages_out == 1 && !rq->inplace_io) {
+		DBG_BUGON(!*rq->out);
+		dst = kmap_atomic(*rq->out);
+		dst_maptype = 0;
+		goto dstmap_out;
 	}
 
 	/* general decoding path which can be used for all cases */
-- 
GitLab


From 151aac47dc3a76222f5b9d59311161f33a2fc2b3 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Thu, 7 Oct 2021 15:02:23 +0800
Subject: [PATCH 0904/4878] erofs: decouple basic mount options from fs_context

Previously, EROFS mount options are all in the basic types, so
erofs_fs_context can be directly copied with assignment. However,
when the multiple device feature is introduced, it's hard to handle
multiple device information like the other basic mount options.

Let's separate basic mount option usage from fs_context, thus
multiple device information can be handled gracefully then.

No logic changes.

Link: https://lore.kernel.org/r/20211007070224.12833-1-hsiangkao@linux.alibaba.com
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/inode.c    |  2 +-
 fs/erofs/internal.h | 16 ++++++++-----
 fs/erofs/super.c    | 58 ++++++++++++++++++++++-----------------------
 fs/erofs/xattr.c    |  4 ++--
 fs/erofs/zdata.c    |  8 +++----
 5 files changed, 45 insertions(+), 43 deletions(-)

diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 5573e466a4264..53a7d3cab2aed 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -192,7 +192,7 @@ static struct page *erofs_read_inode(struct inode *inode,
 	inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec;
 
 	inode->i_flags &= ~S_DAX;
-	if (test_opt(&sbi->ctx, DAX_ALWAYS) && S_ISREG(inode->i_mode) &&
+	if (test_opt(&sbi->opt, DAX_ALWAYS) && S_ISREG(inode->i_mode) &&
 	    vi->datalayout == EROFS_INODE_FLAT_PLAIN)
 		inode->i_flags |= S_DAX;
 	if (!nblks)
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 4fcfd18aa80db..21e417664ab6a 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -47,7 +47,7 @@ typedef u64 erofs_off_t;
 /* data type for filesystem-wide blocks number */
 typedef u32 erofs_blk_t;
 
-struct erofs_fs_context {
+struct erofs_mount_opts {
 #ifdef CONFIG_EROFS_FS_ZIP
 	/* current strategy of how to use managed cache */
 	unsigned char cache_strategy;
@@ -60,6 +60,10 @@ struct erofs_fs_context {
 	unsigned int mount_opt;
 };
 
+struct erofs_fs_context {
+	struct erofs_mount_opts opt;
+};
+
 /* all filesystem-wide lz4 configurations */
 struct erofs_sb_lz4_info {
 	/* # of pages needed for EROFS lz4 rolling decompression */
@@ -69,6 +73,8 @@ struct erofs_sb_lz4_info {
 };
 
 struct erofs_sb_info {
+	struct erofs_mount_opts opt;	/* options */
+
 #ifdef CONFIG_EROFS_FS_ZIP
 	/* list for all registered superblocks, mainly for shrinker */
 	struct list_head list;
@@ -108,8 +114,6 @@ struct erofs_sb_info {
 	u8 volume_name[16];             /* volume name */
 	u32 feature_compat;
 	u32 feature_incompat;
-
-	struct erofs_fs_context ctx;	/* options */
 };
 
 #define EROFS_SB(sb) ((struct erofs_sb_info *)(sb)->s_fs_info)
@@ -121,9 +125,9 @@ struct erofs_sb_info {
 #define EROFS_MOUNT_DAX_ALWAYS		0x00000040
 #define EROFS_MOUNT_DAX_NEVER		0x00000080
 
-#define clear_opt(ctx, option)	((ctx)->mount_opt &= ~EROFS_MOUNT_##option)
-#define set_opt(ctx, option)	((ctx)->mount_opt |= EROFS_MOUNT_##option)
-#define test_opt(ctx, option)	((ctx)->mount_opt & EROFS_MOUNT_##option)
+#define clear_opt(opt, option)	((opt)->mount_opt &= ~EROFS_MOUNT_##option)
+#define set_opt(opt, option)	((opt)->mount_opt |= EROFS_MOUNT_##option)
+#define test_opt(opt, option)	((opt)->mount_opt & EROFS_MOUNT_##option)
 
 enum {
 	EROFS_ZIP_CACHE_DISABLED,
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index a8d49e8fc83a3..57aac0a16e75d 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -340,15 +340,15 @@ out:
 static void erofs_default_options(struct erofs_fs_context *ctx)
 {
 #ifdef CONFIG_EROFS_FS_ZIP
-	ctx->cache_strategy = EROFS_ZIP_CACHE_READAROUND;
-	ctx->max_sync_decompress_pages = 3;
-	ctx->readahead_sync_decompress = false;
+	ctx->opt.cache_strategy = EROFS_ZIP_CACHE_READAROUND;
+	ctx->opt.max_sync_decompress_pages = 3;
+	ctx->opt.readahead_sync_decompress = false;
 #endif
 #ifdef CONFIG_EROFS_FS_XATTR
-	set_opt(ctx, XATTR_USER);
+	set_opt(&ctx->opt, XATTR_USER);
 #endif
 #ifdef CONFIG_EROFS_FS_POSIX_ACL
-	set_opt(ctx, POSIX_ACL);
+	set_opt(&ctx->opt, POSIX_ACL);
 #endif
 }
 
@@ -392,12 +392,12 @@ static bool erofs_fc_set_dax_mode(struct fs_context *fc, unsigned int mode)
 	switch (mode) {
 	case EROFS_MOUNT_DAX_ALWAYS:
 		warnfc(fc, "DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
-		set_opt(ctx, DAX_ALWAYS);
-		clear_opt(ctx, DAX_NEVER);
+		set_opt(&ctx->opt, DAX_ALWAYS);
+		clear_opt(&ctx->opt, DAX_NEVER);
 		return true;
 	case EROFS_MOUNT_DAX_NEVER:
-		set_opt(ctx, DAX_NEVER);
-		clear_opt(ctx, DAX_ALWAYS);
+		set_opt(&ctx->opt, DAX_NEVER);
+		clear_opt(&ctx->opt, DAX_ALWAYS);
 		return true;
 	default:
 		DBG_BUGON(1);
@@ -424,9 +424,9 @@ static int erofs_fc_parse_param(struct fs_context *fc,
 	case Opt_user_xattr:
 #ifdef CONFIG_EROFS_FS_XATTR
 		if (result.boolean)
-			set_opt(ctx, XATTR_USER);
+			set_opt(&ctx->opt, XATTR_USER);
 		else
-			clear_opt(ctx, XATTR_USER);
+			clear_opt(&ctx->opt, XATTR_USER);
 #else
 		errorfc(fc, "{,no}user_xattr options not supported");
 #endif
@@ -434,16 +434,16 @@ static int erofs_fc_parse_param(struct fs_context *fc,
 	case Opt_acl:
 #ifdef CONFIG_EROFS_FS_POSIX_ACL
 		if (result.boolean)
-			set_opt(ctx, POSIX_ACL);
+			set_opt(&ctx->opt, POSIX_ACL);
 		else
-			clear_opt(ctx, POSIX_ACL);
+			clear_opt(&ctx->opt, POSIX_ACL);
 #else
 		errorfc(fc, "{,no}acl options not supported");
 #endif
 		break;
 	case Opt_cache_strategy:
 #ifdef CONFIG_EROFS_FS_ZIP
-		ctx->cache_strategy = result.uint_32;
+		ctx->opt.cache_strategy = result.uint_32;
 #else
 		errorfc(fc, "compression not supported, cache_strategy ignored");
 #endif
@@ -540,15 +540,16 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
 		return -ENOMEM;
 
 	sb->s_fs_info = sbi;
+	sbi->opt = ctx->opt;
 	sbi->dax_dev = fs_dax_get_by_bdev(sb->s_bdev);
 	err = erofs_read_superblock(sb);
 	if (err)
 		return err;
 
-	if (test_opt(ctx, DAX_ALWAYS) &&
+	if (test_opt(&sbi->opt, DAX_ALWAYS) &&
 	    !bdev_dax_supported(sb->s_bdev, EROFS_BLKSIZ)) {
 		errorfc(fc, "DAX unsupported by block device. Turning off DAX.");
-		clear_opt(ctx, DAX_ALWAYS);
+		clear_opt(&sbi->opt, DAX_ALWAYS);
 	}
 	sb->s_flags |= SB_RDONLY | SB_NOATIME;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
@@ -557,13 +558,11 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
 	sb->s_op = &erofs_sops;
 	sb->s_xattr = erofs_xattr_handlers;
 
-	if (test_opt(ctx, POSIX_ACL))
+	if (test_opt(&sbi->opt, POSIX_ACL))
 		sb->s_flags |= SB_POSIXACL;
 	else
 		sb->s_flags &= ~SB_POSIXACL;
 
-	sbi->ctx = *ctx;
-
 #ifdef CONFIG_EROFS_FS_ZIP
 	xa_init(&sbi->managed_pslots);
 #endif
@@ -607,12 +606,12 @@ static int erofs_fc_reconfigure(struct fs_context *fc)
 
 	DBG_BUGON(!sb_rdonly(sb));
 
-	if (test_opt(ctx, POSIX_ACL))
+	if (test_opt(&ctx->opt, POSIX_ACL))
 		fc->sb_flags |= SB_POSIXACL;
 	else
 		fc->sb_flags &= ~SB_POSIXACL;
 
-	sbi->ctx = *ctx;
+	sbi->opt = ctx->opt;
 
 	fc->sb_flags |= SB_RDONLY;
 	return 0;
@@ -640,7 +639,6 @@ static int erofs_init_fs_context(struct fs_context *fc)
 	erofs_default_options(fc->fs_private);
 
 	fc->ops = &erofs_context_ops;
-
 	return 0;
 }
 
@@ -763,31 +761,31 @@ static int erofs_statfs(struct dentry *dentry, struct kstatfs *buf)
 static int erofs_show_options(struct seq_file *seq, struct dentry *root)
 {
 	struct erofs_sb_info *sbi = EROFS_SB(root->d_sb);
-	struct erofs_fs_context *ctx = &sbi->ctx;
+	struct erofs_mount_opts *opt = &sbi->opt;
 
 #ifdef CONFIG_EROFS_FS_XATTR
-	if (test_opt(ctx, XATTR_USER))
+	if (test_opt(opt, XATTR_USER))
 		seq_puts(seq, ",user_xattr");
 	else
 		seq_puts(seq, ",nouser_xattr");
 #endif
 #ifdef CONFIG_EROFS_FS_POSIX_ACL
-	if (test_opt(ctx, POSIX_ACL))
+	if (test_opt(opt, POSIX_ACL))
 		seq_puts(seq, ",acl");
 	else
 		seq_puts(seq, ",noacl");
 #endif
 #ifdef CONFIG_EROFS_FS_ZIP
-	if (ctx->cache_strategy == EROFS_ZIP_CACHE_DISABLED)
+	if (opt->cache_strategy == EROFS_ZIP_CACHE_DISABLED)
 		seq_puts(seq, ",cache_strategy=disabled");
-	else if (ctx->cache_strategy == EROFS_ZIP_CACHE_READAHEAD)
+	else if (opt->cache_strategy == EROFS_ZIP_CACHE_READAHEAD)
 		seq_puts(seq, ",cache_strategy=readahead");
-	else if (ctx->cache_strategy == EROFS_ZIP_CACHE_READAROUND)
+	else if (opt->cache_strategy == EROFS_ZIP_CACHE_READAROUND)
 		seq_puts(seq, ",cache_strategy=readaround");
 #endif
-	if (test_opt(ctx, DAX_ALWAYS))
+	if (test_opt(opt, DAX_ALWAYS))
 		seq_puts(seq, ",dax=always");
-	if (test_opt(ctx, DAX_NEVER))
+	if (test_opt(opt, DAX_NEVER))
 		seq_puts(seq, ",dax=never");
 	return 0;
 }
diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
index 8dd54b420a1d6..59148ffc0c1f8 100644
--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -429,7 +429,7 @@ static int shared_getxattr(struct inode *inode, struct getxattr_iter *it)
 
 static bool erofs_xattr_user_list(struct dentry *dentry)
 {
-	return test_opt(&EROFS_SB(dentry->d_sb)->ctx, XATTR_USER);
+	return test_opt(&EROFS_SB(dentry->d_sb)->opt, XATTR_USER);
 }
 
 static bool erofs_xattr_trusted_list(struct dentry *dentry)
@@ -476,7 +476,7 @@ static int erofs_xattr_generic_get(const struct xattr_handler *handler,
 
 	switch (handler->flags) {
 	case EROFS_XATTR_INDEX_USER:
-		if (!test_opt(&sbi->ctx, XATTR_USER))
+		if (!test_opt(&sbi->opt, XATTR_USER))
 			return -EOPNOTSUPP;
 		break;
 	case EROFS_XATTR_INDEX_TRUSTED:
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index b233877820bb5..9feb6354b3af0 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -695,7 +695,7 @@ restart_now:
 		goto err_out;
 
 	/* preload all compressed pages (maybe downgrade role if necessary) */
-	if (should_alloc_managed_pages(fe, sbi->ctx.cache_strategy, map->m_la))
+	if (should_alloc_managed_pages(fe, sbi->opt.cache_strategy, map->m_la))
 		cache_strategy = TRYALLOC;
 	else
 		cache_strategy = DONTALLOC;
@@ -796,7 +796,7 @@ static void z_erofs_decompress_kickoff(struct z_erofs_decompressqueue *io,
 	/* Use workqueue and sync decompression for atomic contexts only */
 	if (in_atomic() || irqs_disabled()) {
 		queue_work(z_erofs_workqueue, &io->u.work);
-		sbi->ctx.readahead_sync_decompress = true;
+		sbi->opt.readahead_sync_decompress = true;
 		return;
 	}
 	z_erofs_decompressqueue_work(&io->u.work);
@@ -1411,8 +1411,8 @@ static void z_erofs_readahead(struct readahead_control *rac)
 	struct erofs_sb_info *const sbi = EROFS_I_SB(inode);
 
 	unsigned int nr_pages = readahead_count(rac);
-	bool sync = (sbi->ctx.readahead_sync_decompress &&
-			nr_pages <= sbi->ctx.max_sync_decompress_pages);
+	bool sync = (sbi->opt.readahead_sync_decompress &&
+			nr_pages <= sbi->opt.max_sync_decompress_pages);
 	struct z_erofs_decompress_frontend f = DECOMPRESS_FRONTEND_INIT(inode);
 	struct page *page, *head = NULL;
 	LIST_HEAD(pagepool);
-- 
GitLab


From 12551e2f0d1d1ee4b8603a2281ac42ef27127bb6 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Thu, 14 Oct 2021 16:10:10 +0800
Subject: [PATCH 0905/4878] erofs: add multiple device support

In order to support multi-layer container images, add multiple
device feature to EROFS. Two ways are available to use for now:

 - Devices can be mapped into 32-bit global block address space;
 - Device ID can be specified with the chunk indexes format.

Note that it assumes no extent would cross device boundary and mkfs
should take care of it seriously.

In the future, a dedicated device manager could be introduced then
thus extra devices can be automatically scanned by UUID as well.

Link: https://lore.kernel.org/r/20211014081010.43485-1-hsiangkao@linux.alibaba.com
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 Documentation/filesystems/erofs.rst |  12 ++-
 fs/erofs/Kconfig                    |  24 +++--
 fs/erofs/data.c                     |  73 ++++++++++---
 fs/erofs/erofs_fs.h                 |  22 +++-
 fs/erofs/internal.h                 |  35 ++++++-
 fs/erofs/super.c                    | 156 ++++++++++++++++++++++++++--
 fs/erofs/zdata.c                    |  19 +++-
 7 files changed, 296 insertions(+), 45 deletions(-)

diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index b97579b7d8fbc..01df283c7d04f 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -19,9 +19,10 @@ It is designed as a better filesystem solution for the following scenarios:
    immutable and bit-for-bit identical to the official golden image for
    their releases due to security and other considerations and
 
- - hope to save some extra storage space with guaranteed end-to-end performance
-   by using reduced metadata and transparent file compression, especially
-   for those embedded devices with limited memory (ex, smartphone);
+ - hope to minimize extra storage space with guaranteed end-to-end performance
+   by using compact layout, transparent file compression and direct access,
+   especially for those embedded devices with limited memory and high-density
+   hosts with numerous containers;
 
 Here is the main features of EROFS:
 
@@ -51,7 +52,9 @@ Here is the main features of EROFS:
  - Support POSIX.1e ACLs by using xattrs;
 
  - Support transparent data compression as an option:
-   LZ4 algorithm with the fixed-sized output compression for high performance.
+   LZ4 algorithm with the fixed-sized output compression for high performance;
+
+ - Multiple device support for multi-layer container images.
 
 The following git tree provides the file system user-space tools under
 development (ex, formatting tool mkfs.erofs):
@@ -87,6 +90,7 @@ cache_strategy=%s      Select a strategy for cached decompression from now on:
 dax={always,never}     Use direct access (no page cache).  See
                        Documentation/filesystems/dax.rst.
 dax                    A legacy option which is an alias for ``dax=always``.
+device=%s              Specify a path to an extra device to be used together.
 ===================    =========================================================
 
 On-disk details
diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index 14b7470267423..addfe608d08e7 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -6,16 +6,22 @@ config EROFS_FS
 	select FS_IOMAP
 	select LIBCRC32C
 	help
-	  EROFS (Enhanced Read-Only File System) is a lightweight
-	  read-only file system with modern designs (eg. page-sized
-	  blocks, inline xattrs/data, etc.) for scenarios which need
-	  high-performance read-only requirements, e.g. Android OS
-	  for mobile phones and LIVECDs.
+	  EROFS (Enhanced Read-Only File System) is a lightweight read-only
+	  file system with modern designs (e.g. no buffer heads, inline
+	  xattrs/data, chunk-based deduplication, multiple devices, etc.) for
+	  scenarios which need high-performance read-only solutions, e.g.
+	  smartphones with Android OS, LiveCDs and high-density hosts with
+	  numerous containers;
 
-	  It also provides fixed-sized output compression support,
-	  which improves storage density, keeps relatively higher
-	  compression ratios, which is more useful to achieve high
-	  performance for embedded devices with limited memory.
+	  It also provides fixed-sized output compression support in order to
+	  improve storage density as well as keep relatively higher compression
+	  ratios and implements in-place decompression to reuse the file page
+	  for compressed data temporarily with proper strategies, which is
+	  quite useful to ensure guaranteed end-to-end runtime decompression
+	  performance under extremely memory pressure without extra cost.
+
+	  See the documentation at <file:Documentation/filesystems/erofs.rst>
+	  for more details.
 
 	  If unsure, say N.
 
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index e944d9e26c88e..69454382f680a 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -90,6 +90,7 @@ static int erofs_map_blocks(struct inode *inode,
 	erofs_off_t pos;
 	int err = 0;
 
+	map->m_deviceid = 0;
 	if (map->m_la >= inode->i_size) {
 		/* leave out-of-bound access unmapped */
 		map->m_flags = 0;
@@ -136,14 +137,8 @@ static int erofs_map_blocks(struct inode *inode,
 		map->m_flags = 0;
 		break;
 	default:
-		/* only one device is supported for now */
-		if (idx->device_id) {
-			erofs_err(sb, "invalid device id %u @ %llu for nid %llu",
-				  le16_to_cpu(idx->device_id),
-				  chunknr, vi->nid);
-			err = -EFSCORRUPTED;
-			goto out_unlock;
-		}
+		map->m_deviceid = le16_to_cpu(idx->device_id) &
+			EROFS_SB(sb)->device_id_mask;
 		map->m_pa = blknr_to_addr(le32_to_cpu(idx->blkaddr));
 		map->m_flags = EROFS_MAP_MAPPED;
 		break;
@@ -156,11 +151,55 @@ out:
 	return err;
 }
 
+int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *map)
+{
+	struct erofs_dev_context *devs = EROFS_SB(sb)->devs;
+	struct erofs_device_info *dif;
+	int id;
+
+	/* primary device by default */
+	map->m_bdev = sb->s_bdev;
+	map->m_daxdev = EROFS_SB(sb)->dax_dev;
+
+	if (map->m_deviceid) {
+		down_read(&devs->rwsem);
+		dif = idr_find(&devs->tree, map->m_deviceid - 1);
+		if (!dif) {
+			up_read(&devs->rwsem);
+			return -ENODEV;
+		}
+		map->m_bdev = dif->bdev;
+		map->m_daxdev = dif->dax_dev;
+		up_read(&devs->rwsem);
+	} else if (devs->extra_devices) {
+		down_read(&devs->rwsem);
+		idr_for_each_entry(&devs->tree, dif, id) {
+			erofs_off_t startoff, length;
+
+			if (!dif->mapped_blkaddr)
+				continue;
+			startoff = blknr_to_addr(dif->mapped_blkaddr);
+			length = blknr_to_addr(dif->blocks);
+
+			if (map->m_pa >= startoff &&
+			    map->m_pa < startoff + length) {
+				map->m_pa -= startoff;
+				map->m_bdev = dif->bdev;
+				map->m_daxdev = dif->dax_dev;
+				break;
+			}
+		}
+		up_read(&devs->rwsem);
+	}
+	return 0;
+}
+
 static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 		unsigned int flags, struct iomap *iomap, struct iomap *srcmap)
 {
 	int ret;
 	struct erofs_map_blocks map;
+	struct erofs_map_dev mdev;
 
 	map.m_la = offset;
 	map.m_llen = length;
@@ -169,8 +208,16 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	if (ret < 0)
 		return ret;
 
-	iomap->bdev = inode->i_sb->s_bdev;
-	iomap->dax_dev = EROFS_I_SB(inode)->dax_dev;
+	mdev = (struct erofs_map_dev) {
+		.m_deviceid = map.m_deviceid,
+		.m_pa = map.m_pa,
+	};
+	ret = erofs_map_dev(inode->i_sb, &mdev);
+	if (ret)
+		return ret;
+
+	iomap->bdev = mdev.m_bdev;
+	iomap->dax_dev = mdev.m_daxdev;
 	iomap->offset = map.m_la;
 	iomap->length = map.m_llen;
 	iomap->flags = 0;
@@ -189,15 +236,15 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 
 		iomap->type = IOMAP_INLINE;
 		ipage = erofs_get_meta_page(inode->i_sb,
-					    erofs_blknr(map.m_pa));
+					    erofs_blknr(mdev.m_pa));
 		if (IS_ERR(ipage))
 			return PTR_ERR(ipage);
 		iomap->inline_data = page_address(ipage) +
-					erofs_blkoff(map.m_pa);
+					erofs_blkoff(mdev.m_pa);
 		iomap->private = ipage;
 	} else {
 		iomap->type = IOMAP_MAPPED;
-		iomap->addr = map.m_pa;
+		iomap->addr = mdev.m_pa;
 	}
 	return 0;
 }
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index b0b23f41abc38..e480b3854d881 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -21,14 +21,27 @@
 #define EROFS_FEATURE_INCOMPAT_COMPR_CFGS	0x00000002
 #define EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER	0x00000002
 #define EROFS_FEATURE_INCOMPAT_CHUNKED_FILE	0x00000004
+#define EROFS_FEATURE_INCOMPAT_DEVICE_TABLE	0x00000008
 #define EROFS_ALL_FEATURE_INCOMPAT		\
 	(EROFS_FEATURE_INCOMPAT_LZ4_0PADDING | \
 	 EROFS_FEATURE_INCOMPAT_COMPR_CFGS | \
 	 EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER | \
-	 EROFS_FEATURE_INCOMPAT_CHUNKED_FILE)
+	 EROFS_FEATURE_INCOMPAT_CHUNKED_FILE | \
+	 EROFS_FEATURE_INCOMPAT_DEVICE_TABLE)
 
 #define EROFS_SB_EXTSLOT_SIZE	16
 
+struct erofs_deviceslot {
+	union {
+		u8 uuid[16];		/* used for device manager later */
+		u8 userdata[64];	/* digest(sha256), etc. */
+	} u;
+	__le32 blocks;			/* total fs blocks of this device */
+	__le32 mapped_blkaddr;		/* map starting at mapped_blkaddr */
+	u8 reserved[56];
+};
+#define EROFS_DEVT_SLOT_SIZE	sizeof(struct erofs_deviceslot)
+
 /* erofs on-disk super block (currently 128 bytes) */
 struct erofs_super_block {
 	__le32 magic;           /* file system magic number */
@@ -54,7 +67,9 @@ struct erofs_super_block {
 		/* customized sliding window size instead of 64k by default */
 		__le16 lz4_max_distance;
 	} __packed u1;
-	__u8 reserved2[42];
+	__le16 extra_devices;	/* # of devices besides the primary device */
+	__le16 devt_slotoff;	/* startoff = devt_slotoff * devt_slotsize */
+	__u8 reserved2[38];
 };
 
 /*
@@ -238,7 +253,7 @@ static inline unsigned int erofs_xattr_entry_size(struct erofs_xattr_entry *e)
 /* 8-byte inode chunk indexes */
 struct erofs_inode_chunk_index {
 	__le16 advise;		/* always 0, don't care for now */
-	__le16 device_id;	/* back-end storage id, always 0 for now */
+	__le16 device_id;	/* back-end storage id (with bits masked) */
 	__le32 blkaddr;		/* start block address of this inode chunk */
 };
 
@@ -384,6 +399,7 @@ static inline void erofs_check_ondisk_layout_definitions(void)
 	/* keep in sync between 2 index structures for better extendibility */
 	BUILD_BUG_ON(sizeof(struct erofs_inode_chunk_index) !=
 		     sizeof(struct z_erofs_vle_decompressed_index));
+	BUILD_BUG_ON(sizeof(struct erofs_deviceslot) != 128);
 
 	BUILD_BUG_ON(BIT(Z_EROFS_VLE_DI_CLUSTER_TYPE_BITS) <
 		     Z_EROFS_VLE_CLUSTER_TYPE_MAX - 1);
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 21e417664ab6a..448007b11acc4 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -47,6 +47,15 @@ typedef u64 erofs_off_t;
 /* data type for filesystem-wide blocks number */
 typedef u32 erofs_blk_t;
 
+struct erofs_device_info {
+	char *path;
+	struct block_device *bdev;
+	struct dax_device *dax_dev;
+
+	u32 blocks;
+	u32 mapped_blkaddr;
+};
+
 struct erofs_mount_opts {
 #ifdef CONFIG_EROFS_FS_ZIP
 	/* current strategy of how to use managed cache */
@@ -60,8 +69,16 @@ struct erofs_mount_opts {
 	unsigned int mount_opt;
 };
 
+struct erofs_dev_context {
+	struct idr tree;
+	struct rw_semaphore rwsem;
+
+	unsigned int extra_devices;
+};
+
 struct erofs_fs_context {
 	struct erofs_mount_opts opt;
+	struct erofs_dev_context *devs;
 };
 
 /* all filesystem-wide lz4 configurations */
@@ -74,7 +91,6 @@ struct erofs_sb_lz4_info {
 
 struct erofs_sb_info {
 	struct erofs_mount_opts opt;	/* options */
-
 #ifdef CONFIG_EROFS_FS_ZIP
 	/* list for all registered superblocks, mainly for shrinker */
 	struct list_head list;
@@ -91,12 +107,16 @@ struct erofs_sb_info {
 
 	struct erofs_sb_lz4_info lz4;
 #endif	/* CONFIG_EROFS_FS_ZIP */
+	struct erofs_dev_context *devs;
 	struct dax_device *dax_dev;
-	u32 blocks;
+	u64 total_blocks;
+	u32 primarydevice_blocks;
+
 	u32 meta_blkaddr;
 #ifdef CONFIG_EROFS_FS_XATTR
 	u32 xattr_blkaddr;
 #endif
+	u16 device_id_mask;	/* valid bits of device id to be used */
 
 	/* inode slot unit size in bit shift */
 	unsigned char islotbits;
@@ -241,6 +261,7 @@ static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \
 EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING)
 EROFS_FEATURE_FUNCS(compr_cfgs, incompat, INCOMPAT_COMPR_CFGS)
 EROFS_FEATURE_FUNCS(big_pcluster, incompat, INCOMPAT_BIG_PCLUSTER)
+EROFS_FEATURE_FUNCS(device_table, incompat, INCOMPAT_DEVICE_TABLE)
 EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM)
 
 /* atomic flag definitions */
@@ -359,6 +380,7 @@ struct erofs_map_blocks {
 	erofs_off_t m_pa, m_la;
 	u64 m_plen, m_llen;
 
+	unsigned short m_deviceid;
 	unsigned int m_flags;
 
 	struct page *mpage;
@@ -390,9 +412,18 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode,
 }
 #endif	/* !CONFIG_EROFS_FS_ZIP */
 
+struct erofs_map_dev {
+	struct block_device *m_bdev;
+	struct dax_device *m_daxdev;
+
+	erofs_off_t m_pa;
+	unsigned int m_deviceid;
+};
+
 /* data.c */
 extern const struct file_operations erofs_file_fops;
 struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr);
+int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *dev);
 int erofs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		 u64 start, u64 len);
 
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 57aac0a16e75d..ba9a947f9eca6 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -252,6 +252,79 @@ static int erofs_load_compr_cfgs(struct super_block *sb,
 }
 #endif
 
+static int erofs_init_devices(struct super_block *sb,
+			      struct erofs_super_block *dsb)
+{
+	struct erofs_sb_info *sbi = EROFS_SB(sb);
+	unsigned int ondisk_extradevs;
+	erofs_off_t pos;
+	struct page *page = NULL;
+	struct erofs_device_info *dif;
+	struct erofs_deviceslot *dis;
+	void *ptr;
+	int id, err = 0;
+
+	sbi->total_blocks = sbi->primarydevice_blocks;
+	if (!erofs_sb_has_device_table(sbi))
+		ondisk_extradevs = 0;
+	else
+		ondisk_extradevs = le16_to_cpu(dsb->extra_devices);
+
+	if (ondisk_extradevs != sbi->devs->extra_devices) {
+		erofs_err(sb, "extra devices don't match (ondisk %u, given %u)",
+			  ondisk_extradevs, sbi->devs->extra_devices);
+		return -EINVAL;
+	}
+	if (!ondisk_extradevs)
+		return 0;
+
+	sbi->device_id_mask = roundup_pow_of_two(ondisk_extradevs + 1) - 1;
+	pos = le16_to_cpu(dsb->devt_slotoff) * EROFS_DEVT_SLOT_SIZE;
+	down_read(&sbi->devs->rwsem);
+	idr_for_each_entry(&sbi->devs->tree, dif, id) {
+		erofs_blk_t blk = erofs_blknr(pos);
+		struct block_device *bdev;
+
+		if (!page || page->index != blk) {
+			if (page) {
+				kunmap(page);
+				unlock_page(page);
+				put_page(page);
+			}
+
+			page = erofs_get_meta_page(sb, blk);
+			if (IS_ERR(page)) {
+				up_read(&sbi->devs->rwsem);
+				return PTR_ERR(page);
+			}
+			ptr = kmap(page);
+		}
+		dis = ptr + erofs_blkoff(pos);
+
+		bdev = blkdev_get_by_path(dif->path,
+					  FMODE_READ | FMODE_EXCL,
+					  sb->s_type);
+		if (IS_ERR(bdev)) {
+			err = PTR_ERR(bdev);
+			goto err_out;
+		}
+		dif->bdev = bdev;
+		dif->dax_dev = fs_dax_get_by_bdev(bdev);
+		dif->blocks = le32_to_cpu(dis->blocks);
+		dif->mapped_blkaddr = le32_to_cpu(dis->mapped_blkaddr);
+		sbi->total_blocks += dif->blocks;
+		pos += EROFS_DEVT_SLOT_SIZE;
+	}
+err_out:
+	up_read(&sbi->devs->rwsem);
+	if (page) {
+		kunmap(page);
+		unlock_page(page);
+		put_page(page);
+	}
+	return err;
+}
+
 static int erofs_read_superblock(struct super_block *sb)
 {
 	struct erofs_sb_info *sbi;
@@ -303,7 +376,7 @@ static int erofs_read_superblock(struct super_block *sb)
 			  sbi->sb_size);
 		goto out;
 	}
-	sbi->blocks = le32_to_cpu(dsb->blocks);
+	sbi->primarydevice_blocks = le32_to_cpu(dsb->blocks);
 	sbi->meta_blkaddr = le32_to_cpu(dsb->meta_blkaddr);
 #ifdef CONFIG_EROFS_FS_XATTR
 	sbi->xattr_blkaddr = le32_to_cpu(dsb->xattr_blkaddr);
@@ -330,6 +403,11 @@ static int erofs_read_superblock(struct super_block *sb)
 		ret = erofs_load_compr_cfgs(sb, dsb);
 	else
 		ret = z_erofs_load_lz4_config(sb, dsb, NULL, 0);
+	if (ret < 0)
+		goto out;
+
+	/* handle multiple devices */
+	ret = erofs_init_devices(sb, dsb);
 out:
 	kunmap(page);
 	put_page(page);
@@ -358,6 +436,7 @@ enum {
 	Opt_cache_strategy,
 	Opt_dax,
 	Opt_dax_enum,
+	Opt_device,
 	Opt_err
 };
 
@@ -381,6 +460,7 @@ static const struct fs_parameter_spec erofs_fs_parameters[] = {
 		     erofs_param_cache_strategy),
 	fsparam_flag("dax",             Opt_dax),
 	fsparam_enum("dax",		Opt_dax_enum, erofs_dax_param_enums),
+	fsparam_string("device",	Opt_device),
 	{}
 };
 
@@ -412,9 +492,10 @@ static bool erofs_fc_set_dax_mode(struct fs_context *fc, unsigned int mode)
 static int erofs_fc_parse_param(struct fs_context *fc,
 				struct fs_parameter *param)
 {
-	struct erofs_fs_context *ctx __maybe_unused = fc->fs_private;
+	struct erofs_fs_context *ctx = fc->fs_private;
 	struct fs_parse_result result;
-	int opt;
+	struct erofs_device_info *dif;
+	int opt, ret;
 
 	opt = fs_parse(fc, erofs_fs_parameters, param, &result);
 	if (opt < 0)
@@ -456,6 +537,25 @@ static int erofs_fc_parse_param(struct fs_context *fc,
 		if (!erofs_fc_set_dax_mode(fc, result.uint_32))
 			return -EINVAL;
 		break;
+	case Opt_device:
+		dif = kzalloc(sizeof(*dif), GFP_KERNEL);
+		if (!dif)
+			return -ENOMEM;
+		dif->path = kstrdup(param->string, GFP_KERNEL);
+		if (!dif->path) {
+			kfree(dif);
+			return -ENOMEM;
+		}
+		down_write(&ctx->devs->rwsem);
+		ret = idr_alloc(&ctx->devs->tree, dif, 0, 0, GFP_KERNEL);
+		up_write(&ctx->devs->rwsem);
+		if (ret < 0) {
+			kfree(dif->path);
+			kfree(dif);
+			return ret;
+		}
+		++ctx->devs->extra_devices;
+		break;
 	default:
 		return -ENOPARAM;
 	}
@@ -542,6 +642,9 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
 	sb->s_fs_info = sbi;
 	sbi->opt = ctx->opt;
 	sbi->dax_dev = fs_dax_get_by_bdev(sb->s_bdev);
+	sbi->devs = ctx->devs;
+	ctx->devs = NULL;
+
 	err = erofs_read_superblock(sb);
 	if (err)
 		return err;
@@ -617,9 +720,33 @@ static int erofs_fc_reconfigure(struct fs_context *fc)
 	return 0;
 }
 
+static int erofs_release_device_info(int id, void *ptr, void *data)
+{
+	struct erofs_device_info *dif = ptr;
+
+	fs_put_dax(dif->dax_dev);
+	if (dif->bdev)
+		blkdev_put(dif->bdev, FMODE_READ | FMODE_EXCL);
+	kfree(dif->path);
+	kfree(dif);
+	return 0;
+}
+
+static void erofs_free_dev_context(struct erofs_dev_context *devs)
+{
+	if (!devs)
+		return;
+	idr_for_each(&devs->tree, &erofs_release_device_info, NULL);
+	idr_destroy(&devs->tree);
+	kfree(devs);
+}
+
 static void erofs_fc_free(struct fs_context *fc)
 {
-	kfree(fc->fs_private);
+	struct erofs_fs_context *ctx = fc->fs_private;
+
+	erofs_free_dev_context(ctx->devs);
+	kfree(ctx);
 }
 
 static const struct fs_context_operations erofs_context_ops = {
@@ -631,13 +758,20 @@ static const struct fs_context_operations erofs_context_ops = {
 
 static int erofs_init_fs_context(struct fs_context *fc)
 {
-	fc->fs_private = kzalloc(sizeof(struct erofs_fs_context), GFP_KERNEL);
-	if (!fc->fs_private)
-		return -ENOMEM;
+	struct erofs_fs_context *ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 
-	/* set default mount options */
-	erofs_default_options(fc->fs_private);
+	if (!ctx)
+		return -ENOMEM;
+	ctx->devs = kzalloc(sizeof(struct erofs_dev_context), GFP_KERNEL);
+	if (!ctx->devs) {
+		kfree(ctx);
+		return -ENOMEM;
+	}
+	fc->fs_private = ctx;
 
+	idr_init(&ctx->devs->tree);
+	init_rwsem(&ctx->devs->rwsem);
+	erofs_default_options(ctx);
 	fc->ops = &erofs_context_ops;
 	return 0;
 }
@@ -657,6 +791,8 @@ static void erofs_kill_sb(struct super_block *sb)
 	sbi = EROFS_SB(sb);
 	if (!sbi)
 		return;
+
+	erofs_free_dev_context(sbi->devs);
 	fs_put_dax(sbi->dax_dev);
 	kfree(sbi);
 	sb->s_fs_info = NULL;
@@ -746,7 +882,7 @@ static int erofs_statfs(struct dentry *dentry, struct kstatfs *buf)
 
 	buf->f_type = sb->s_magic;
 	buf->f_bsize = EROFS_BLKSIZ;
-	buf->f_blocks = sbi->blocks;
+	buf->f_blocks = sbi->total_blocks;
 	buf->f_bfree = buf->f_bavail = 0;
 
 	buf->f_files = ULLONG_MAX;
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 9feb6354b3af0..604ea1687a0a1 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -1266,8 +1266,9 @@ static void z_erofs_submit_queue(struct super_block *sb,
 	struct z_erofs_decompressqueue *q[NR_JOBQUEUES];
 	void *bi_private;
 	z_erofs_next_pcluster_t owned_head = f->clt.owned_head;
-	/* since bio will be NULL, no need to initialize last_index */
+	/* bio is NULL initially, so no need to initialize last_{index,bdev} */
 	pgoff_t last_index;
+	struct block_device *last_bdev;
 	unsigned int nr_bios = 0;
 	struct bio *bio = NULL;
 
@@ -1279,6 +1280,7 @@ static void z_erofs_submit_queue(struct super_block *sb,
 	q[JQ_SUBMIT]->head = owned_head;
 
 	do {
+		struct erofs_map_dev mdev;
 		struct z_erofs_pcluster *pcl;
 		pgoff_t cur, end;
 		unsigned int i = 0;
@@ -1290,7 +1292,13 @@ static void z_erofs_submit_queue(struct super_block *sb,
 
 		pcl = container_of(owned_head, struct z_erofs_pcluster, next);
 
-		cur = pcl->obj.index;
+		/* no device id here, thus it will always succeed */
+		mdev = (struct erofs_map_dev) {
+			.m_pa = blknr_to_addr(pcl->obj.index),
+		};
+		(void)erofs_map_dev(sb, &mdev);
+
+		cur = erofs_blknr(mdev.m_pa);
 		end = cur + pcl->pclusterpages;
 
 		/* close the main owned chain at first */
@@ -1306,7 +1314,8 @@ static void z_erofs_submit_queue(struct super_block *sb,
 			if (!page)
 				continue;
 
-			if (bio && cur != last_index + 1) {
+			if (bio && (cur != last_index + 1 ||
+				    last_bdev != mdev.m_bdev)) {
 submit_bio_retry:
 				submit_bio(bio);
 				bio = NULL;
@@ -1316,7 +1325,9 @@ submit_bio_retry:
 				bio = bio_alloc(GFP_NOIO, BIO_MAX_PAGES);
 
 				bio->bi_end_io = z_erofs_decompressqueue_endio;
-				bio_set_dev(bio, sb->s_bdev);
+
+				bio_set_dev(bio, mdev.m_bdev);
+				last_bdev = mdev.m_bdev;
 				bio->bi_iter.bi_sector = (sector_t)cur <<
 					LOG_SECTORS_PER_BLOCK;
 				bio->bi_private = bi_private;
-- 
GitLab


From f296e18758df9f76cb808eddba60655f2cb0f7c6 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Sat, 9 Oct 2021 04:08:37 +0800
Subject: [PATCH 0906/4878] erofs: get compression algorithms directly on
 mapping

Currently, z_erofs_map_blocks_iter() returns whether extents are
compressed or not, and the decompression frontend gets the specific
algorithms then.

It works but not quite well in many aspests, for example:
 - The decompression frontend has to deal with whether extents are
   compressed or not again and lookup the algorithms if compressed.
   It's duplicated and too detailed about the on-disk mapping.

 - A new secondary compression head will be introduced later so that
   each file can have 2 compression algorithms at most for different
   type of data. It could increase the complexity of the decompression
   frontend if still handled in this way;

 - A new readmore decompression strategy will be introduced to get
   better performance for much bigger pcluster and lzma, which needs
   the specific algorithm in advance as well.

Let's look up compression algorithms in z_erofs_map_blocks_iter()
directly instead.

Link: https://lore.kernel.org/r/20211008200839.24541-2-xiang@kernel.org
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/compress.h          |  5 -----
 fs/erofs/internal.h          | 12 +++++++++---
 fs/erofs/zdata.c             | 12 ++++++------
 fs/erofs/zmap.c              | 19 ++++++++++---------
 include/trace/events/erofs.h |  2 +-
 5 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h
index 3701c72bacb2e..ad62d1b4d371f 100644
--- a/fs/erofs/compress.h
+++ b/fs/erofs/compress.h
@@ -8,11 +8,6 @@
 
 #include "internal.h"
 
-enum {
-	Z_EROFS_COMPRESSION_SHIFTED = Z_EROFS_COMPRESSION_MAX,
-	Z_EROFS_COMPRESSION_RUNTIME_MAX
-};
-
 struct z_erofs_decompress_req {
 	struct super_block *sb;
 	struct page **in, **out;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 448007b11acc4..0eb5caefa066f 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -363,7 +363,7 @@ extern const struct address_space_operations z_erofs_aops;
  * of the corresponding uncompressed data in the file.
  */
 enum {
-	BH_Zipped = BH_PrivateStart,
+	BH_Encoded = BH_PrivateStart,
 	BH_FullMapped,
 };
 
@@ -371,8 +371,8 @@ enum {
 #define EROFS_MAP_MAPPED	(1 << BH_Mapped)
 /* Located in metadata (could be copied from bd_inode) */
 #define EROFS_MAP_META		(1 << BH_Meta)
-/* The extent has been compressed */
-#define EROFS_MAP_ZIPPED	(1 << BH_Zipped)
+/* The extent is encoded */
+#define EROFS_MAP_ENCODED	(1 << BH_Encoded)
 /* The length of extent is full */
 #define EROFS_MAP_FULL_MAPPED	(1 << BH_FullMapped)
 
@@ -381,6 +381,7 @@ struct erofs_map_blocks {
 	u64 m_plen, m_llen;
 
 	unsigned short m_deviceid;
+	char m_algorithmformat;
 	unsigned int m_flags;
 
 	struct page *mpage;
@@ -394,6 +395,11 @@ struct erofs_map_blocks {
  */
 #define EROFS_GET_BLOCKS_FIEMAP	0x0002
 
+enum {
+	Z_EROFS_COMPRESSION_SHIFTED = Z_EROFS_COMPRESSION_MAX,
+	Z_EROFS_COMPRESSION_RUNTIME_MAX
+};
+
 /* zmap.c */
 extern const struct iomap_ops z_erofs_iomap_report_ops;
 
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 604ea1687a0a1..ae9fbed876870 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -476,6 +476,11 @@ static int z_erofs_register_collection(struct z_erofs_collector *clt,
 	struct erofs_workgroup *grp;
 	int err;
 
+	if (!(map->m_flags & EROFS_MAP_ENCODED)) {
+		DBG_BUGON(1);
+		return -EFSCORRUPTED;
+	}
+
 	/* no available pcluster, let's allocate one */
 	pcl = z_erofs_alloc_pcluster(map->m_plen >> PAGE_SHIFT);
 	if (IS_ERR(pcl))
@@ -483,16 +488,11 @@ static int z_erofs_register_collection(struct z_erofs_collector *clt,
 
 	atomic_set(&pcl->obj.refcount, 1);
 	pcl->obj.index = map->m_pa >> PAGE_SHIFT;
-
+	pcl->algorithmformat = map->m_algorithmformat;
 	pcl->length = (map->m_llen << Z_EROFS_PCLUSTER_LENGTH_BIT) |
 		(map->m_flags & EROFS_MAP_FULL_MAPPED ?
 			Z_EROFS_PCLUSTER_FULL_LENGTH : 0);
 
-	if (map->m_flags & EROFS_MAP_ZIPPED)
-		pcl->algorithmformat = Z_EROFS_COMPRESSION_LZ4;
-	else
-		pcl->algorithmformat = Z_EROFS_COMPRESSION_SHIFTED;
-
 	/* new pclusters should be claimed as type 1, primary and followed */
 	pcl->next = clt->owned_head;
 	clt->mode = COLLECT_PRIMARY_FOLLOWED;
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 9fb98d85a3cea..d3c8932e73cfb 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -111,7 +111,7 @@ struct z_erofs_maprecorder {
 
 	unsigned long lcn;
 	/* compression extent information gathered */
-	u8  type;
+	u8  type, headtype;
 	u16 clusterofs;
 	u16 delta[2];
 	erofs_blk_t pblk, compressedlcs;
@@ -445,9 +445,8 @@ static int z_erofs_extent_lookback(struct z_erofs_maprecorder *m,
 		}
 		return z_erofs_extent_lookback(m, m->delta[0]);
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
-		map->m_flags &= ~EROFS_MAP_ZIPPED;
-		fallthrough;
 	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
+		m->headtype = m->type;
 		map->m_la = (lcn << lclusterbits) | m->clusterofs;
 		break;
 	default:
@@ -471,7 +470,7 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
 
 	DBG_BUGON(m->type != Z_EROFS_VLE_CLUSTER_TYPE_PLAIN &&
 		  m->type != Z_EROFS_VLE_CLUSTER_TYPE_HEAD);
-	if (!(map->m_flags & EROFS_MAP_ZIPPED) ||
+	if (m->headtype == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN ||
 	    !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1)) {
 		map->m_plen = 1 << lclusterbits;
 		return 0;
@@ -608,16 +607,14 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 	if (err)
 		goto unmap_out;
 
-	map->m_flags = EROFS_MAP_ZIPPED;	/* by default, compressed */
+	map->m_flags = EROFS_MAP_MAPPED | EROFS_MAP_ENCODED;
 	end = (m.lcn + 1ULL) << lclusterbits;
 
 	switch (m.type) {
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
-		if (endoff >= m.clusterofs)
-			map->m_flags &= ~EROFS_MAP_ZIPPED;
-		fallthrough;
 	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
 		if (endoff >= m.clusterofs) {
+			m.headtype = m.type;
 			map->m_la = (m.lcn << lclusterbits) | m.clusterofs;
 			break;
 		}
@@ -649,12 +646,16 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 
 	map->m_llen = end - map->m_la;
 	map->m_pa = blknr_to_addr(m.pblk);
-	map->m_flags |= EROFS_MAP_MAPPED;
 
 	err = z_erofs_get_extent_compressedlen(&m, initial_lcn);
 	if (err)
 		goto out;
 
+	if (m.headtype == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN)
+		map->m_algorithmformat = Z_EROFS_COMPRESSION_SHIFTED;
+	else
+		map->m_algorithmformat = vi->z_algorithmtype[0];
+
 	if (flags & EROFS_GET_BLOCKS_FIEMAP) {
 		err = z_erofs_get_extent_decompressedlen(&m);
 		if (!err)
diff --git a/include/trace/events/erofs.h b/include/trace/events/erofs.h
index bf9806fd13065..f1b56d1438ab9 100644
--- a/include/trace/events/erofs.h
+++ b/include/trace/events/erofs.h
@@ -24,7 +24,7 @@ struct erofs_map_blocks;
 #define show_mflags(flags) __print_flags(flags, "",	\
 	{ EROFS_MAP_MAPPED,	"M" },			\
 	{ EROFS_MAP_META,	"I" },			\
-	{ EROFS_MAP_ZIPPED,	"Z" })
+	{ EROFS_MAP_ENCODED,	"E" })
 
 TRACE_EVENT(erofs_lookup,
 
-- 
GitLab


From 3c6fe90881a78221b9a977e4c1e4d511eae642bd Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Mon, 18 Oct 2021 00:57:21 +0800
Subject: [PATCH 0907/4878] erofs: introduce the secondary compression head

Previously, for each HEAD lcluster, it can be either HEAD or PLAIN
lcluster to indicate whether the whole pcluster is compressed or not.

In this patch, a new HEAD2 head type is introduced to specify another
compression algorithm other than the primary algorithm for each
compressed file, which can be used for upcoming LZMA compression and
LZ4 range dictionary compression for various data patterns.

It has been stayed in the EROFS roadmap for years. Complete it now!

Link: https://lore.kernel.org/r/20211017165721.2442-1-xiang@kernel.org
Reviewed-by: Yue Hu <huyue2@yulong.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/erofs_fs.h | 39 ++++++++++++++++++++-------------------
 fs/erofs/zmap.c     | 41 ++++++++++++++++++++++++++++-------------
 2 files changed, 48 insertions(+), 32 deletions(-)

diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index e480b3854d881..1c2917181346e 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -22,12 +22,14 @@
 #define EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER	0x00000002
 #define EROFS_FEATURE_INCOMPAT_CHUNKED_FILE	0x00000004
 #define EROFS_FEATURE_INCOMPAT_DEVICE_TABLE	0x00000008
+#define EROFS_FEATURE_INCOMPAT_COMPR_HEAD2	0x00000008
 #define EROFS_ALL_FEATURE_INCOMPAT		\
 	(EROFS_FEATURE_INCOMPAT_LZ4_0PADDING | \
 	 EROFS_FEATURE_INCOMPAT_COMPR_CFGS | \
 	 EROFS_FEATURE_INCOMPAT_BIG_PCLUSTER | \
 	 EROFS_FEATURE_INCOMPAT_CHUNKED_FILE | \
-	 EROFS_FEATURE_INCOMPAT_DEVICE_TABLE)
+	 EROFS_FEATURE_INCOMPAT_DEVICE_TABLE | \
+	 EROFS_FEATURE_INCOMPAT_COMPR_HEAD2)
 
 #define EROFS_SB_EXTSLOT_SIZE	16
 
@@ -303,35 +305,34 @@ struct z_erofs_map_header {
 #define Z_EROFS_VLE_LEGACY_HEADER_PADDING       8
 
 /*
- * Fixed-sized output compression ondisk Logical Extent cluster type:
- *    0 - literal (uncompressed) cluster
- *    1 - compressed cluster (for the head logical cluster)
- *    2 - compressed cluster (for the other logical clusters)
+ * Fixed-sized output compression on-disk logical cluster type:
+ *    0   - literal (uncompressed) lcluster
+ *    1,3 - compressed lcluster (for HEAD lclusters)
+ *    2   - compressed lcluster (for NONHEAD lclusters)
  *
  * In detail,
- *    0 - literal (uncompressed) cluster,
+ *    0 - literal (uncompressed) lcluster,
  *        di_advise = 0
- *        di_clusterofs = the literal data offset of the cluster
- *        di_blkaddr = the blkaddr of the literal cluster
+ *        di_clusterofs = the literal data offset of the lcluster
+ *        di_blkaddr = the blkaddr of the literal pcluster
  *
- *    1 - compressed cluster (for the head logical cluster)
- *        di_advise = 1
- *        di_clusterofs = the decompressed data offset of the cluster
- *        di_blkaddr = the blkaddr of the compressed cluster
+ *    1,3 - compressed lcluster (for HEAD lclusters)
+ *        di_advise = 1 or 3
+ *        di_clusterofs = the decompressed data offset of the lcluster
+ *        di_blkaddr = the blkaddr of the compressed pcluster
  *
- *    2 - compressed cluster (for the other logical clusters)
+ *    2 - compressed lcluster (for NONHEAD lclusters)
  *        di_advise = 2
  *        di_clusterofs =
- *           the decompressed data offset in its own head cluster
- *        di_u.delta[0] = distance to its corresponding head cluster
- *        di_u.delta[1] = distance to its corresponding tail cluster
- *                (di_advise could be 0, 1 or 2)
+ *           the decompressed data offset in its own HEAD lcluster
+ *        di_u.delta[0] = distance to this HEAD lcluster
+ *        di_u.delta[1] = distance to the next HEAD lcluster
  */
 enum {
 	Z_EROFS_VLE_CLUSTER_TYPE_PLAIN		= 0,
-	Z_EROFS_VLE_CLUSTER_TYPE_HEAD		= 1,
+	Z_EROFS_VLE_CLUSTER_TYPE_HEAD1		= 1,
 	Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD	= 2,
-	Z_EROFS_VLE_CLUSTER_TYPE_RESERVED	= 3,
+	Z_EROFS_VLE_CLUSTER_TYPE_HEAD2		= 3,
 	Z_EROFS_VLE_CLUSTER_TYPE_MAX
 };
 
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index d3c8932e73cfb..249388e60f6c8 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -28,7 +28,7 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 {
 	struct erofs_inode *const vi = EROFS_I(inode);
 	struct super_block *const sb = inode->i_sb;
-	int err;
+	int err, headnr;
 	erofs_off_t pos;
 	struct page *page;
 	void *kaddr;
@@ -68,9 +68,11 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
 	vi->z_algorithmtype[0] = h->h_algorithmtype & 15;
 	vi->z_algorithmtype[1] = h->h_algorithmtype >> 4;
 
-	if (vi->z_algorithmtype[0] >= Z_EROFS_COMPRESSION_MAX) {
-		erofs_err(sb, "unknown compression format %u for nid %llu, please upgrade kernel",
-			  vi->z_algorithmtype[0], vi->nid);
+	headnr = 0;
+	if (vi->z_algorithmtype[0] >= Z_EROFS_COMPRESSION_MAX ||
+	    vi->z_algorithmtype[++headnr] >= Z_EROFS_COMPRESSION_MAX) {
+		erofs_err(sb, "unknown HEAD%u format %u for nid %llu, please upgrade kernel",
+			  headnr + 1, vi->z_algorithmtype[headnr], vi->nid);
 		err = -EOPNOTSUPP;
 		goto unmap_done;
 	}
@@ -178,7 +180,8 @@ static int legacy_load_cluster_from_disk(struct z_erofs_maprecorder *m,
 		m->clusterofs = 1 << vi->z_logical_clusterbits;
 		m->delta[0] = le16_to_cpu(di->di_u.delta[0]);
 		if (m->delta[0] & Z_EROFS_VLE_DI_D0_CBLKCNT) {
-			if (!(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1)) {
+			if (!(vi->z_advise & (Z_EROFS_ADVISE_BIG_PCLUSTER_1 |
+					Z_EROFS_ADVISE_BIG_PCLUSTER_2))) {
 				DBG_BUGON(1);
 				return -EFSCORRUPTED;
 			}
@@ -189,7 +192,8 @@ static int legacy_load_cluster_from_disk(struct z_erofs_maprecorder *m,
 		m->delta[1] = le16_to_cpu(di->di_u.delta[1]);
 		break;
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
-	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD1:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD2:
 		m->clusterofs = le16_to_cpu(di->di_clusterofs);
 		m->pblk = le32_to_cpu(di->di_u.blkaddr);
 		break;
@@ -445,7 +449,8 @@ static int z_erofs_extent_lookback(struct z_erofs_maprecorder *m,
 		}
 		return z_erofs_extent_lookback(m, m->delta[0]);
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
-	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD1:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD2:
 		m->headtype = m->type;
 		map->m_la = (lcn << lclusterbits) | m->clusterofs;
 		break;
@@ -469,13 +474,18 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
 	int err;
 
 	DBG_BUGON(m->type != Z_EROFS_VLE_CLUSTER_TYPE_PLAIN &&
-		  m->type != Z_EROFS_VLE_CLUSTER_TYPE_HEAD);
+		  m->type != Z_EROFS_VLE_CLUSTER_TYPE_HEAD1 &&
+		  m->type != Z_EROFS_VLE_CLUSTER_TYPE_HEAD2);
+	DBG_BUGON(m->type != m->headtype);
+
 	if (m->headtype == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN ||
-	    !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1)) {
+	    ((m->headtype == Z_EROFS_VLE_CLUSTER_TYPE_HEAD1) &&
+	     !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1)) ||
+	    ((m->headtype == Z_EROFS_VLE_CLUSTER_TYPE_HEAD2) &&
+	     !(vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_2))) {
 		map->m_plen = 1 << lclusterbits;
 		return 0;
 	}
-
 	lcn = m->lcn + 1;
 	if (m->compressedlcs)
 		goto out;
@@ -497,7 +507,8 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
 
 	switch (m->type) {
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
-	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD1:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD2:
 		/*
 		 * if the 1st NONHEAD lcluster is actually PLAIN or HEAD type
 		 * rather than CBLKCNT, it's a 1 lcluster-sized pcluster.
@@ -552,7 +563,8 @@ static int z_erofs_get_extent_decompressedlen(struct z_erofs_maprecorder *m)
 			DBG_BUGON(!m->delta[1] &&
 				  m->clusterofs != 1 << lclusterbits);
 		} else if (m->type == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN ||
-			   m->type == Z_EROFS_VLE_CLUSTER_TYPE_HEAD) {
+			   m->type == Z_EROFS_VLE_CLUSTER_TYPE_HEAD1 ||
+			   m->type == Z_EROFS_VLE_CLUSTER_TYPE_HEAD2) {
 			/* go on until the next HEAD lcluster */
 			if (lcn != headlcn)
 				break;
@@ -612,7 +624,8 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 
 	switch (m.type) {
 	case Z_EROFS_VLE_CLUSTER_TYPE_PLAIN:
-	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD1:
+	case Z_EROFS_VLE_CLUSTER_TYPE_HEAD2:
 		if (endoff >= m.clusterofs) {
 			m.headtype = m.type;
 			map->m_la = (m.lcn << lclusterbits) | m.clusterofs;
@@ -653,6 +666,8 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 
 	if (m.headtype == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN)
 		map->m_algorithmformat = Z_EROFS_COMPRESSION_SHIFTED;
+	else if (m.headtype == Z_EROFS_VLE_CLUSTER_TYPE_HEAD2)
+		map->m_algorithmformat = vi->z_algorithmtype[1];
 	else
 		map->m_algorithmformat = vi->z_algorithmtype[0];
 
-- 
GitLab


From 5981d99092ce756b3868ae32b4c8e4f05654ce59 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:39 +0800
Subject: [PATCH 0908/4878] lib/xz: Avoid overlapping memcpy() with invalid
 input with in-place decompression

With valid files, the safety margin described in lib/decompress_unxz.c
ensures that these buffers cannot overlap. But if the uncompressed size
of the input is larger than the caller thought, which is possible when
the input file is invalid/corrupt, the buffers can overlap. Obviously
the result will then be garbage (and usually the decoder will return
an error too) but no other harm will happen when such an over-run occurs.

This change only affects uncompressed LZMA2 chunks and so this
should have no effect on performance.

Link: https://lore.kernel.org/r/20211010213145.17462-2-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 lib/decompress_unxz.c |  2 +-
 lib/xz/xz_dec_lzma2.c | 21 +++++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
index 25d59a95bd668..abea25310ac73 100644
--- a/lib/decompress_unxz.c
+++ b/lib/decompress_unxz.c
@@ -167,7 +167,7 @@
  * memeq and memzero are not used much and any remotely sane implementation
  * is fast enough. memcpy/memmove speed matters in multi-call mode, but
  * the kernel image is decompressed in single-call mode, in which only
- * memcpy speed can matter and only if there is a lot of uncompressible data
+ * memmove speed can matter and only if there is a lot of uncompressible data
  * (LZMA2 stores uncompressible chunks in uncompressed form). Thus, the
  * functions below should just be kept small; it's probably not worth
  * optimizing for speed.
diff --git a/lib/xz/xz_dec_lzma2.c b/lib/xz/xz_dec_lzma2.c
index 65a1aad8c223b..a18b52759fd91 100644
--- a/lib/xz/xz_dec_lzma2.c
+++ b/lib/xz/xz_dec_lzma2.c
@@ -387,7 +387,14 @@ static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,
 
 		*left -= copy_size;
 
-		memcpy(dict->buf + dict->pos, b->in + b->in_pos, copy_size);
+		/*
+		 * If doing in-place decompression in single-call mode and the
+		 * uncompressed size of the file is larger than the caller
+		 * thought (i.e. it is invalid input!), the buffers below may
+		 * overlap and cause undefined behavior with memcpy().
+		 * With valid inputs memcpy() would be fine here.
+		 */
+		memmove(dict->buf + dict->pos, b->in + b->in_pos, copy_size);
 		dict->pos += copy_size;
 
 		if (dict->full < dict->pos)
@@ -397,7 +404,11 @@ static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,
 			if (dict->pos == dict->end)
 				dict->pos = 0;
 
-			memcpy(b->out + b->out_pos, b->in + b->in_pos,
+			/*
+			 * Like above but for multi-call mode: use memmove()
+			 * to avoid undefined behavior with invalid input.
+			 */
+			memmove(b->out + b->out_pos, b->in + b->in_pos,
 					copy_size);
 		}
 
@@ -421,6 +432,12 @@ static uint32_t dict_flush(struct dictionary *dict, struct xz_buf *b)
 		if (dict->pos == dict->end)
 			dict->pos = 0;
 
+		/*
+		 * These buffers cannot overlap even if doing in-place
+		 * decompression because in multi-call mode dict->buf
+		 * has been allocated by us in this file; it's not
+		 * provided by the caller like in single-call mode.
+		 */
 		memcpy(b->out + b->out_pos, dict->buf + dict->start,
 				copy_size);
 	}
-- 
GitLab


From 70d9fac0b239a2e0268f6bde0152297f9b9ad2f3 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:40 +0800
Subject: [PATCH 0909/4878] lib/xz: Validate the value before assigning it to
 an enum variable

This might matter, for example, if the underlying type of enum xz_check
was a signed char. In such a case the validation wouldn't have caught an
unsupported header. I don't know if this problem can occur in the kernel
on any arch but it's still good to fix it because some people might copy
the XZ code to their own projects from Linux instead of the upstream
XZ Embedded repository.

This change may increase the code size by a few bytes. An alternative
would have been to use an unsigned int instead of enum xz_check but
using an enumeration looks cleaner.

Link: https://lore.kernel.org/r/20211010213145.17462-3-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 lib/xz/xz_dec_stream.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/xz/xz_dec_stream.c b/lib/xz/xz_dec_stream.c
index 32ab2a08b7cbc..a30e3308035fa 100644
--- a/lib/xz/xz_dec_stream.c
+++ b/lib/xz/xz_dec_stream.c
@@ -402,12 +402,12 @@ static enum xz_ret dec_stream_header(struct xz_dec *s)
 	 * we will accept other check types too, but then the check won't
 	 * be verified and a warning (XZ_UNSUPPORTED_CHECK) will be given.
 	 */
+	if (s->temp.buf[HEADER_MAGIC_SIZE + 1] > XZ_CHECK_MAX)
+		return XZ_OPTIONS_ERROR;
+
 	s->check_type = s->temp.buf[HEADER_MAGIC_SIZE + 1];
 
 #ifdef XZ_DEC_ANY_CHECK
-	if (s->check_type > XZ_CHECK_MAX)
-		return XZ_OPTIONS_ERROR;
-
 	if (s->check_type > XZ_CHECK_CRC32)
 		return XZ_UNSUPPORTED_CHECK;
 #else
-- 
GitLab


From 6e17bfaa688cdf34053fb5e9514685b9e7491336 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:41 +0800
Subject: [PATCH 0910/4878] lib/xz: Move s->lzma.len = 0 initialization to
 lzma_reset()

It's a more logical place even if the resetting needs to be done
only once per LZMA2 stream (if lzma_reset() called in the middle
of an LZMA2 stream, .len will already be 0).

Link: https://lore.kernel.org/r/20211010213145.17462-4-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 lib/xz/xz_dec_lzma2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/xz/xz_dec_lzma2.c b/lib/xz/xz_dec_lzma2.c
index a18b52759fd91..7bb9b1d2b8ecc 100644
--- a/lib/xz/xz_dec_lzma2.c
+++ b/lib/xz/xz_dec_lzma2.c
@@ -791,6 +791,7 @@ static void lzma_reset(struct xz_dec_lzma2 *s)
 	s->lzma.rep1 = 0;
 	s->lzma.rep2 = 0;
 	s->lzma.rep3 = 0;
+	s->lzma.len = 0;
 
 	/*
 	 * All probabilities are initialized to the same value. This hack
@@ -1174,8 +1175,6 @@ XZ_EXTERN enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s, uint8_t props)
 		}
 	}
 
-	s->lzma.len = 0;
-
 	s->lzma2.sequence = SEQ_CONTROL;
 	s->lzma2.need_dict_reset = true;
 
-- 
GitLab


From 1bf214000fe5c5d0532cdd0c8f8c219293d02779 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:42 +0800
Subject: [PATCH 0911/4878] lib/xz: Add MicroLZMA decoder

MicroLZMA is a yet another header format variant where the first
byte of a raw LZMA stream (without the end of stream marker) has
been replaced with a bitwise-negation of the lc/lp/pb properties
byte. MicroLZMA was created to be used in EROFS but can be used
by other things too where wasting minimal amount of space for
headers is important.

This is implemented using most of the LZMA2 code as is so the
amount of new code is small. The API has a few extra features
compared to the XZ decoder. On the other hand, the API lacks
XZ_BUF_ERROR support which is important to take into account
when using this API.

MicroLZMA doesn't support BCJ filters. In theory they could be
added later as there are many unused/reserved values for the
first byte of the compressed stream but in practice it is
somewhat unlikely to happen due to a few implementation reasons.

Link: https://lore.kernel.org/r/20211010213145.17462-5-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 include/linux/xz.h    | 106 ++++++++++++++++++++++++++++
 lib/xz/Kconfig        |  13 ++++
 lib/xz/xz_dec_lzma2.c | 156 +++++++++++++++++++++++++++++++++++++++++-
 lib/xz/xz_dec_syms.c  |   9 ++-
 lib/xz/xz_private.h   |   3 +
 5 files changed, 284 insertions(+), 3 deletions(-)

diff --git a/include/linux/xz.h b/include/linux/xz.h
index 9884c8440188e..7285ca5d56e9d 100644
--- a/include/linux/xz.h
+++ b/include/linux/xz.h
@@ -233,6 +233,112 @@ XZ_EXTERN void xz_dec_reset(struct xz_dec *s);
  */
 XZ_EXTERN void xz_dec_end(struct xz_dec *s);
 
+/*
+ * Decompressor for MicroLZMA, an LZMA variant with a very minimal header.
+ * See xz_dec_microlzma_alloc() below for details.
+ *
+ * These functions aren't used or available in preboot code and thus aren't
+ * marked with XZ_EXTERN. This avoids warnings about static functions that
+ * are never defined.
+ */
+/**
+ * struct xz_dec_microlzma - Opaque type to hold the MicroLZMA decoder state
+ */
+struct xz_dec_microlzma;
+
+/**
+ * xz_dec_microlzma_alloc() - Allocate memory for the MicroLZMA decoder
+ * @mode        XZ_SINGLE or XZ_PREALLOC
+ * @dict_size   LZMA dictionary size. This must be at least 4 KiB and
+ *              at most 3 GiB.
+ *
+ * In contrast to xz_dec_init(), this function only allocates the memory
+ * and remembers the dictionary size. xz_dec_microlzma_reset() must be used
+ * before calling xz_dec_microlzma_run().
+ *
+ * The amount of allocated memory is a little less than 30 KiB with XZ_SINGLE.
+ * With XZ_PREALLOC also a dictionary buffer of dict_size bytes is allocated.
+ *
+ * On success, xz_dec_microlzma_alloc() returns a pointer to
+ * struct xz_dec_microlzma. If memory allocation fails or
+ * dict_size is invalid, NULL is returned.
+ *
+ * The compressed format supported by this decoder is a raw LZMA stream
+ * whose first byte (always 0x00) has been replaced with bitwise-negation
+ * of the LZMA properties (lc/lp/pb) byte. For example, if lc/lp/pb is
+ * 3/0/2, the first byte is 0xA2. This way the first byte can never be 0x00.
+ * Just like with LZMA2, lc + lp <= 4 must be true. The LZMA end-of-stream
+ * marker must not be used. The unused values are reserved for future use.
+ * This MicroLZMA header format was created for use in EROFS but may be used
+ * by others too.
+ */
+extern struct xz_dec_microlzma *xz_dec_microlzma_alloc(enum xz_mode mode,
+						       uint32_t dict_size);
+
+/**
+ * xz_dec_microlzma_reset() - Reset the MicroLZMA decoder state
+ * @s           Decoder state allocated using xz_dec_microlzma_alloc()
+ * @comp_size   Compressed size of the input stream
+ * @uncomp_size Uncompressed size of the input stream. A value smaller
+ *              than the real uncompressed size of the input stream can
+ *              be specified if uncomp_size_is_exact is set to false.
+ *              uncomp_size can never be set to a value larger than the
+ *              expected real uncompressed size because it would eventually
+ *              result in XZ_DATA_ERROR.
+ * @uncomp_size_is_exact  This is an int instead of bool to avoid
+ *              requiring stdbool.h. This should normally be set to true.
+ *              When this is set to false, error detection is weaker.
+ */
+extern void xz_dec_microlzma_reset(struct xz_dec_microlzma *s,
+				   uint32_t comp_size, uint32_t uncomp_size,
+				   int uncomp_size_is_exact);
+
+/**
+ * xz_dec_microlzma_run() - Run the MicroLZMA decoder
+ * @s           Decoder state initialized using xz_dec_microlzma_reset()
+ * @b:          Input and output buffers
+ *
+ * This works similarly to xz_dec_run() with a few important differences.
+ * Only the differences are documented here.
+ *
+ * The only possible return values are XZ_OK, XZ_STREAM_END, and
+ * XZ_DATA_ERROR. This function cannot return XZ_BUF_ERROR: if no progress
+ * is possible due to lack of input data or output space, this function will
+ * keep returning XZ_OK. Thus, the calling code must be written so that it
+ * will eventually provide input and output space matching (or exceeding)
+ * comp_size and uncomp_size arguments given to xz_dec_microlzma_reset().
+ * If the caller cannot do this (for example, if the input file is truncated
+ * or otherwise corrupt), the caller must detect this error by itself to
+ * avoid an infinite loop.
+ *
+ * If the compressed data seems to be corrupt, XZ_DATA_ERROR is returned.
+ * This can happen also when incorrect dictionary, uncompressed, or
+ * compressed sizes have been specified.
+ *
+ * With XZ_PREALLOC only: As an extra feature, b->out may be NULL to skip over
+ * uncompressed data. This way the caller doesn't need to provide a temporary
+ * output buffer for the bytes that will be ignored.
+ *
+ * With XZ_SINGLE only: In contrast to xz_dec_run(), the return value XZ_OK
+ * is also possible and thus XZ_SINGLE is actually a limited multi-call mode.
+ * After XZ_OK the bytes decoded so far may be read from the output buffer.
+ * It is possible to continue decoding but the variables b->out and b->out_pos
+ * MUST NOT be changed by the caller. Increasing the value of b->out_size is
+ * allowed to make more output space available; one doesn't need to provide
+ * space for the whole uncompressed data on the first call. The input buffer
+ * may be changed normally like with XZ_PREALLOC. This way input data can be
+ * provided from non-contiguous memory.
+ */
+extern enum xz_ret xz_dec_microlzma_run(struct xz_dec_microlzma *s,
+					struct xz_buf *b);
+
+/**
+ * xz_dec_microlzma_end() - Free the memory allocated for the decoder state
+ * @s:          Decoder state allocated using xz_dec_microlzma_alloc().
+ *              If s is NULL, this function does nothing.
+ */
+extern void xz_dec_microlzma_end(struct xz_dec_microlzma *s);
+
 /*
  * Standalone build (userspace build or in-kernel build for boot time use)
  * needs a CRC32 implementation. For normal in-kernel use, kernel's own
diff --git a/lib/xz/Kconfig b/lib/xz/Kconfig
index 5cb50245a878c..adce22ac18d66 100644
--- a/lib/xz/Kconfig
+++ b/lib/xz/Kconfig
@@ -39,6 +39,19 @@ config XZ_DEC_SPARC
 	default y
 	select XZ_DEC_BCJ
 
+config XZ_DEC_MICROLZMA
+	bool "MicroLZMA decoder"
+	default n
+	help
+	  MicroLZMA is a header format variant where the first byte
+	  of a raw LZMA stream (without the end of stream marker) has
+	  been replaced with a bitwise-negation of the lc/lp/pb
+	  properties byte. MicroLZMA was created to be used in EROFS
+	  but can be used by other things too where wasting minimal
+	  amount of space for headers is important.
+
+	  Unless you know that you need this, say N.
+
 endif
 
 config XZ_DEC_BCJ
diff --git a/lib/xz/xz_dec_lzma2.c b/lib/xz/xz_dec_lzma2.c
index 7bb9b1d2b8ecc..0d61042e02664 100644
--- a/lib/xz/xz_dec_lzma2.c
+++ b/lib/xz/xz_dec_lzma2.c
@@ -248,6 +248,10 @@ struct lzma2_dec {
 	 * before the first LZMA chunk.
 	 */
 	bool need_props;
+
+#ifdef XZ_DEC_MICROLZMA
+	bool pedantic_microlzma;
+#endif
 };
 
 struct xz_dec_lzma2 {
@@ -419,6 +423,12 @@ static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,
 	}
 }
 
+#ifdef XZ_DEC_MICROLZMA
+#	define DICT_FLUSH_SUPPORTS_SKIPPING true
+#else
+#	define DICT_FLUSH_SUPPORTS_SKIPPING false
+#endif
+
 /*
  * Flush pending data from dictionary to b->out. It is assumed that there is
  * enough space in b->out. This is guaranteed because caller uses dict_limit()
@@ -437,9 +447,14 @@ static uint32_t dict_flush(struct dictionary *dict, struct xz_buf *b)
 		 * decompression because in multi-call mode dict->buf
 		 * has been allocated by us in this file; it's not
 		 * provided by the caller like in single-call mode.
+		 *
+		 * With MicroLZMA, b->out can be NULL to skip bytes that
+		 * the caller doesn't need. This cannot be done with XZ
+		 * because it would break BCJ filters.
 		 */
-		memcpy(b->out + b->out_pos, dict->buf + dict->start,
-				copy_size);
+		if (!DICT_FLUSH_SUPPORTS_SKIPPING || b->out != NULL)
+			memcpy(b->out + b->out_pos, dict->buf + dict->start,
+					copy_size);
 	}
 
 	dict->start = dict->pos;
@@ -1190,3 +1205,140 @@ XZ_EXTERN void xz_dec_lzma2_end(struct xz_dec_lzma2 *s)
 
 	kfree(s);
 }
+
+#ifdef XZ_DEC_MICROLZMA
+/* This is a wrapper struct to have a nice struct name in the public API. */
+struct xz_dec_microlzma {
+	struct xz_dec_lzma2 s;
+};
+
+enum xz_ret xz_dec_microlzma_run(struct xz_dec_microlzma *s_ptr,
+				 struct xz_buf *b)
+{
+	struct xz_dec_lzma2 *s = &s_ptr->s;
+
+	/*
+	 * sequence is SEQ_PROPERTIES before the first input byte,
+	 * SEQ_LZMA_PREPARE until a total of five bytes have been read,
+	 * and SEQ_LZMA_RUN for the rest of the input stream.
+	 */
+	if (s->lzma2.sequence != SEQ_LZMA_RUN) {
+		if (s->lzma2.sequence == SEQ_PROPERTIES) {
+			/* One byte is needed for the props. */
+			if (b->in_pos >= b->in_size)
+				return XZ_OK;
+
+			/*
+			 * Don't increment b->in_pos here. The same byte is
+			 * also passed to rc_read_init() which will ignore it.
+			 */
+			if (!lzma_props(s, ~b->in[b->in_pos]))
+				return XZ_DATA_ERROR;
+
+			s->lzma2.sequence = SEQ_LZMA_PREPARE;
+		}
+
+		/*
+		 * xz_dec_microlzma_reset() doesn't validate the compressed
+		 * size so we do it here. We have to limit the maximum size
+		 * to avoid integer overflows in lzma2_lzma(). 3 GiB is a nice
+		 * round number and much more than users of this code should
+		 * ever need.
+		 */
+		if (s->lzma2.compressed < RC_INIT_BYTES
+				|| s->lzma2.compressed > (3U << 30))
+			return XZ_DATA_ERROR;
+
+		if (!rc_read_init(&s->rc, b))
+			return XZ_OK;
+
+		s->lzma2.compressed -= RC_INIT_BYTES;
+		s->lzma2.sequence = SEQ_LZMA_RUN;
+
+		dict_reset(&s->dict, b);
+	}
+
+	/* This is to allow increasing b->out_size between calls. */
+	if (DEC_IS_SINGLE(s->dict.mode))
+		s->dict.end = b->out_size - b->out_pos;
+
+	while (true) {
+		dict_limit(&s->dict, min_t(size_t, b->out_size - b->out_pos,
+					   s->lzma2.uncompressed));
+
+		if (!lzma2_lzma(s, b))
+			return XZ_DATA_ERROR;
+
+		s->lzma2.uncompressed -= dict_flush(&s->dict, b);
+
+		if (s->lzma2.uncompressed == 0) {
+			if (s->lzma2.pedantic_microlzma) {
+				if (s->lzma2.compressed > 0 || s->lzma.len > 0
+						|| !rc_is_finished(&s->rc))
+					return XZ_DATA_ERROR;
+			}
+
+			return XZ_STREAM_END;
+		}
+
+		if (b->out_pos == b->out_size)
+			return XZ_OK;
+
+		if (b->in_pos == b->in_size
+				&& s->temp.size < s->lzma2.compressed)
+			return XZ_OK;
+	}
+}
+
+struct xz_dec_microlzma *xz_dec_microlzma_alloc(enum xz_mode mode,
+						uint32_t dict_size)
+{
+	struct xz_dec_microlzma *s;
+
+	/* Restrict dict_size to the same range as in the LZMA2 code. */
+	if (dict_size < 4096 || dict_size > (3U << 30))
+		return NULL;
+
+	s = kmalloc(sizeof(*s), GFP_KERNEL);
+	if (s == NULL)
+		return NULL;
+
+	s->s.dict.mode = mode;
+	s->s.dict.size = dict_size;
+
+	if (DEC_IS_MULTI(mode)) {
+		s->s.dict.end = dict_size;
+
+		s->s.dict.buf = vmalloc(dict_size);
+		if (s->s.dict.buf == NULL) {
+			kfree(s);
+			return NULL;
+		}
+	}
+
+	return s;
+}
+
+void xz_dec_microlzma_reset(struct xz_dec_microlzma *s, uint32_t comp_size,
+			    uint32_t uncomp_size, int uncomp_size_is_exact)
+{
+	/*
+	 * comp_size is validated in xz_dec_microlzma_run().
+	 * uncomp_size can safely be anything.
+	 */
+	s->s.lzma2.compressed = comp_size;
+	s->s.lzma2.uncompressed = uncomp_size;
+	s->s.lzma2.pedantic_microlzma = uncomp_size_is_exact;
+
+	s->s.lzma2.sequence = SEQ_PROPERTIES;
+	s->s.temp.size = 0;
+}
+
+void xz_dec_microlzma_end(struct xz_dec_microlzma *s)
+{
+	if (DEC_IS_MULTI(s->s.dict.mode))
+		vfree(s->s.dict.buf);
+
+	kfree(s);
+}
+#endif
diff --git a/lib/xz/xz_dec_syms.c b/lib/xz/xz_dec_syms.c
index 32eb3c03aede9..61098c67a4138 100644
--- a/lib/xz/xz_dec_syms.c
+++ b/lib/xz/xz_dec_syms.c
@@ -15,8 +15,15 @@ EXPORT_SYMBOL(xz_dec_reset);
 EXPORT_SYMBOL(xz_dec_run);
 EXPORT_SYMBOL(xz_dec_end);
 
+#ifdef CONFIG_XZ_DEC_MICROLZMA
+EXPORT_SYMBOL(xz_dec_microlzma_alloc);
+EXPORT_SYMBOL(xz_dec_microlzma_reset);
+EXPORT_SYMBOL(xz_dec_microlzma_run);
+EXPORT_SYMBOL(xz_dec_microlzma_end);
+#endif
+
 MODULE_DESCRIPTION("XZ decompressor");
-MODULE_VERSION("1.0");
+MODULE_VERSION("1.1");
 MODULE_AUTHOR("Lasse Collin <lasse.collin@tukaani.org> and Igor Pavlov");
 
 /*
diff --git a/lib/xz/xz_private.h b/lib/xz/xz_private.h
index 09360ebb510ef..bf1e94ec7873c 100644
--- a/lib/xz/xz_private.h
+++ b/lib/xz/xz_private.h
@@ -37,6 +37,9 @@
 #		ifdef CONFIG_XZ_DEC_SPARC
 #			define XZ_DEC_SPARC
 #		endif
+#		ifdef CONFIG_XZ_DEC_MICROLZMA
+#			define XZ_DEC_MICROLZMA
+#		endif
 #		define memeq(a, b, size) (memcmp(a, b, size) == 0)
 #		define memzero(buf, size) memset(buf, 0, size)
 #	endif
-- 
GitLab


From 277fcaa1acd3de07db1b6d0602f8de665f2fcf98 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:43 +0800
Subject: [PATCH 0912/4878] lib/xz, lib/decompress_unxz.c: Fix spelling in
 comments

uncompressible -> incompressible
non-splitted -> non-split

Link: https://lore.kernel.org/r/20211010213145.17462-6-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 lib/decompress_unxz.c | 10 +++++-----
 lib/xz/xz_dec_lzma2.c |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
index abea25310ac73..bda06a9eb1838 100644
--- a/lib/decompress_unxz.c
+++ b/lib/decompress_unxz.c
@@ -20,8 +20,8 @@
  *
  * The worst case for in-place decompression is that the beginning of
  * the file is compressed extremely well, and the rest of the file is
- * uncompressible. Thus, we must look for worst-case expansion when the
- * compressor is encoding uncompressible data.
+ * incompressible. Thus, we must look for worst-case expansion when the
+ * compressor is encoding incompressible data.
  *
  * The structure of the .xz file in case of a compresed kernel is as follows.
  * Sizes (as bytes) of the fields are in parenthesis.
@@ -58,7 +58,7 @@
  * uncompressed size of the payload is in practice never less than the
  * payload size itself. The LZMA2 format would allow uncompressed size
  * to be less than the payload size, but no sane compressor creates such
- * files. LZMA2 supports storing uncompressible data in uncompressed form,
+ * files. LZMA2 supports storing incompressible data in uncompressed form,
  * so there's never a need to create payloads whose uncompressed size is
  * smaller than the compressed size.
  *
@@ -167,8 +167,8 @@
  * memeq and memzero are not used much and any remotely sane implementation
  * is fast enough. memcpy/memmove speed matters in multi-call mode, but
  * the kernel image is decompressed in single-call mode, in which only
- * memmove speed can matter and only if there is a lot of uncompressible data
- * (LZMA2 stores uncompressible chunks in uncompressed form). Thus, the
+ * memmove speed can matter and only if there is a lot of incompressible data
+ * (LZMA2 stores incompressible chunks in uncompressed form). Thus, the
  * functions below should just be kept small; it's probably not worth
  * optimizing for speed.
  */
diff --git a/lib/xz/xz_dec_lzma2.c b/lib/xz/xz_dec_lzma2.c
index 0d61042e02664..614ec99f62a9f 100644
--- a/lib/xz/xz_dec_lzma2.c
+++ b/lib/xz/xz_dec_lzma2.c
@@ -520,7 +520,7 @@ static __always_inline void rc_normalize(struct rc_dec *rc)
  * functions so that the compiler is supposed to be able to more easily avoid
  * an extra branch. In this particular version of the LZMA decoder, this
  * doesn't seem to be a good idea (tested with GCC 3.3.6, 3.4.6, and 4.3.3
- * on x86). Using a non-splitted version results in nicer looking code too.
+ * on x86). Using a non-split version results in nicer looking code too.
  *
  * NOTE: This must return an int. Do not make it return a bool or the speed
  * of the code generated by GCC 3.x decreases 10-15 %. (GCC 4.3 doesn't care,
-- 
GitLab


From a71118da5413380d8aedb443a33f150b0a2256ce Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Mon, 11 Oct 2021 05:31:44 +0800
Subject: [PATCH 0913/4878] erofs: rename some generic methods in decompressor

Previously, some LZ4 methods were named with `generic'. However, while
evaluating the effective LZMA approach, it seems they aren't quite
generic at all (e.g. no need preparing dstpages for most LZMA cases.)

Avoid such naming instead.

Link: https://lore.kernel.org/r/20211010213145.17462-7-xiang@kernel.org
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/decompressor.c | 63 ++++++++++++++++++++---------------------
 1 file changed, 30 insertions(+), 33 deletions(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index dce06ac618933..8fd7af9d6b380 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -17,13 +17,8 @@
 #endif
 
 struct z_erofs_decompressor {
-	/*
-	 * if destpages have sparsed pages, fill them with bounce pages.
-	 * it also check whether destpages indicate continuous physical memory.
-	 */
-	int (*prepare_destpages)(struct z_erofs_decompress_req *rq,
-				 struct list_head *pagepool);
-	int (*decompress)(struct z_erofs_decompress_req *rq, u8 *out);
+	int (*decompress)(struct z_erofs_decompress_req *rq,
+			  struct list_head *pagepool);
 	char *name;
 };
 
@@ -63,8 +58,12 @@ int z_erofs_load_lz4_config(struct super_block *sb,
 	return erofs_pcpubuf_growsize(sbi->lz4.max_pclusterblks);
 }
 
-static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
-					 struct list_head *pagepool)
+/*
+ * Fill all gaps with bounce pages if it's a sparse page list. Also check if
+ * all physical pages are consecutive, which can be seen for moderate CR.
+ */
+static int z_erofs_lz4_prepare_dstpages(struct z_erofs_decompress_req *rq,
+					struct list_head *pagepool)
 {
 	const unsigned int nr =
 		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -119,7 +118,7 @@ static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
 	return kaddr ? 1 : 0;
 }
 
-static void *z_erofs_handle_inplace_io(struct z_erofs_decompress_req *rq,
+static void *z_erofs_lz4_handle_inplace_io(struct z_erofs_decompress_req *rq,
 			void *inpage, unsigned int *inputmargin, int *maptype,
 			bool support_0padding)
 {
@@ -189,7 +188,8 @@ docopy:
 	return src;
 }
 
-static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
+static int z_erofs_lz4_decompress_mem(struct z_erofs_decompress_req *rq,
+				      u8 *out)
 {
 	unsigned int inputmargin;
 	u8 *headpage, *src;
@@ -216,8 +216,8 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 	}
 
 	rq->inputsize -= inputmargin;
-	src = z_erofs_handle_inplace_io(rq, headpage, &inputmargin, &maptype,
-					support_0padding);
+	src = z_erofs_lz4_handle_inplace_io(rq, headpage, &inputmargin,
+					    &maptype, support_0padding);
 	if (IS_ERR(src))
 		return PTR_ERR(src);
 
@@ -259,23 +259,11 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 	return ret;
 }
 
-static struct z_erofs_decompressor decompressors[] = {
-	[Z_EROFS_COMPRESSION_SHIFTED] = {
-		.name = "shifted"
-	},
-	[Z_EROFS_COMPRESSION_LZ4] = {
-		.prepare_destpages = z_erofs_lz4_prepare_destpages,
-		.decompress = z_erofs_lz4_decompress,
-		.name = "lz4"
-	},
-};
-
-static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
-				      struct list_head *pagepool)
+static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq,
+				  struct list_head *pagepool)
 {
 	const unsigned int nrpages_out =
 		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
-	const struct z_erofs_decompressor *alg = decompressors + rq->alg;
 	unsigned int dst_maptype;
 	void *dst;
 	int ret;
@@ -289,7 +277,7 @@ static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
 	}
 
 	/* general decoding path which can be used for all cases */
-	ret = alg->prepare_destpages(rq, pagepool);
+	ret = z_erofs_lz4_prepare_dstpages(rq, pagepool);
 	if (ret < 0)
 		return ret;
 	if (ret) {
@@ -304,7 +292,7 @@ static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
 	dst_maptype = 2;
 
 dstmap_out:
-	ret = alg->decompress(rq, dst + rq->pageofs_out);
+	ret = z_erofs_lz4_decompress_mem(rq, dst + rq->pageofs_out);
 
 	if (!dst_maptype)
 		kunmap_atomic(dst);
@@ -313,7 +301,7 @@ dstmap_out:
 	return ret;
 }
 
-static int z_erofs_shifted_transform(const struct z_erofs_decompress_req *rq,
+static int z_erofs_shifted_transform(struct z_erofs_decompress_req *rq,
 				     struct list_head *pagepool)
 {
 	const unsigned int nrpages_out =
@@ -352,10 +340,19 @@ static int z_erofs_shifted_transform(const struct z_erofs_decompress_req *rq,
 	return 0;
 }
 
+static struct z_erofs_decompressor decompressors[] = {
+	[Z_EROFS_COMPRESSION_SHIFTED] = {
+		.decompress = z_erofs_shifted_transform,
+		.name = "shifted"
+	},
+	[Z_EROFS_COMPRESSION_LZ4] = {
+		.decompress = z_erofs_lz4_decompress,
+		.name = "lz4"
+	},
+};
+
 int z_erofs_decompress(struct z_erofs_decompress_req *rq,
 		       struct list_head *pagepool)
 {
-	if (rq->alg == Z_EROFS_COMPRESSION_SHIFTED)
-		return z_erofs_shifted_transform(rq, pagepool);
-	return z_erofs_decompress_generic(rq, pagepool);
+	return decompressors[rq->alg].decompress(rq, pagepool);
 }
-- 
GitLab


From a69a59f807c19007aba5260747048c25f0073047 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Mon, 11 Oct 2021 05:31:45 +0800
Subject: [PATCH 0914/4878] erofs: lzma compression support

Add MicroLZMA support in order to maximize compression ratios for
specific scenarios. For example, it's useful for low-end embedded
boards and as a secondary algorithm in a file for specific access
patterns.

MicroLZMA is a new container format for raw LZMA1, which was created
by Lasse Collin aiming to minimize old LZMA headers and get rid of
unnecessary EOPM (end of payload marker) as well as to enable
fixed-sized output compression, especially for 4KiB pclusters.

Similar to LZ4, inplace I/O approach is used to minimize runtime
memory footprint when dealing with I/O. Overlapped decompression is
handled with 1) bounced buffer for data under processing or 2) extra
short-lived pages from the on-stack pagepool which will be shared in
the same read request (128KiB for example).

Link: https://lore.kernel.org/r/20211010213145.17462-8-xiang@kernel.org
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/Kconfig             |  16 ++
 fs/erofs/Makefile            |   1 +
 fs/erofs/compress.h          |  16 ++
 fs/erofs/decompressor.c      |  12 +-
 fs/erofs/decompressor_lzma.c | 290 +++++++++++++++++++++++++++++++++++
 fs/erofs/erofs_fs.h          |  14 +-
 fs/erofs/internal.h          |  22 +++
 fs/erofs/super.c             |  17 +-
 fs/erofs/zdata.h             |   7 -
 fs/erofs/zmap.c              |   5 +-
 10 files changed, 381 insertions(+), 19 deletions(-)
 create mode 100644 fs/erofs/decompressor_lzma.c

diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index addfe608d08e7..f57255ab88ed4 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -82,3 +82,19 @@ config EROFS_FS_ZIP
 	  Enable fixed-sized output compression for EROFS.
 
 	  If you don't want to enable compression feature, say N.
+
+config EROFS_FS_ZIP_LZMA
+	bool "EROFS LZMA compressed data support"
+	depends on EROFS_FS_ZIP
+	select XZ_DEC
+	select XZ_DEC_MICROLZMA
+	help
+	  Saying Y here includes support for reading EROFS file systems
+	  containing LZMA compressed data, specifically called microLZMA. it
+	  gives better compression ratios than the LZ4 algorithm, at the
+	  expense of more CPU overhead.
+
+	  LZMA support is an experimental feature for now and so most file
+	  systems will be readable without selecting this option.
+
+	  If unsure, say N.
diff --git a/fs/erofs/Makefile b/fs/erofs/Makefile
index 1f9aced49070a..756fe2d652725 100644
--- a/fs/erofs/Makefile
+++ b/fs/erofs/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_EROFS_FS) += erofs.o
 erofs-objs := super.o inode.o data.o namei.o dir.o utils.o pcpubuf.o
 erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
 erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o
+erofs-$(CONFIG_EROFS_FS_ZIP_LZMA) += decompressor_lzma.o
diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h
index ad62d1b4d371f..8ea6a9b149626 100644
--- a/fs/erofs/compress.h
+++ b/fs/erofs/compress.h
@@ -20,6 +20,12 @@ struct z_erofs_decompress_req {
 	bool inplace_io, partial_decoding;
 };
 
+struct z_erofs_decompressor {
+	int (*decompress)(struct z_erofs_decompress_req *rq,
+			  struct list_head *pagepool);
+	char *name;
+};
+
 /* some special page->private (unsigned long, see below) */
 #define Z_EROFS_SHORTLIVED_PAGE		(-1UL << 2)
 #define Z_EROFS_PREALLOCATED_PAGE	(-2UL << 2)
@@ -75,7 +81,17 @@ static inline bool z_erofs_put_shortlivedpage(struct list_head *pagepool,
 	return true;
 }
 
+#define MNGD_MAPPING(sbi)	((sbi)->managed_cache->i_mapping)
+static inline bool erofs_page_is_managed(const struct erofs_sb_info *sbi,
+					 struct page *page)
+{
+	return page->mapping == MNGD_MAPPING(sbi);
+}
+
 int z_erofs_decompress(struct z_erofs_decompress_req *rq,
 		       struct list_head *pagepool);
 
+/* prototypes for specific algorithms */
+int z_erofs_lzma_decompress(struct z_erofs_decompress_req *rq,
+			    struct list_head *pagepool);
 #endif
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 8fd7af9d6b380..8a624d73c1856 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -16,12 +16,6 @@
 #define LZ4_DECOMPRESS_INPLACE_MARGIN(srcsize)  (((srcsize) >> 8) + 32)
 #endif
 
-struct z_erofs_decompressor {
-	int (*decompress)(struct z_erofs_decompress_req *rq,
-			  struct list_head *pagepool);
-	char *name;
-};
-
 int z_erofs_load_lz4_config(struct super_block *sb,
 			    struct erofs_super_block *dsb,
 			    struct z_erofs_lz4_cfgs *lz4, int size)
@@ -349,6 +343,12 @@ static struct z_erofs_decompressor decompressors[] = {
 		.decompress = z_erofs_lz4_decompress,
 		.name = "lz4"
 	},
+#ifdef CONFIG_EROFS_FS_ZIP_LZMA
+	[Z_EROFS_COMPRESSION_LZMA] = {
+		.decompress = z_erofs_lzma_decompress,
+		.name = "lzma"
+	},
+#endif
 };
 
 int z_erofs_decompress(struct z_erofs_decompress_req *rq,
diff --git a/fs/erofs/decompressor_lzma.c b/fs/erofs/decompressor_lzma.c
new file mode 100644
index 0000000000000..bd7d9809ecf7c
--- /dev/null
+++ b/fs/erofs/decompressor_lzma.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <linux/xz.h>
+#include <linux/module.h>
+#include "compress.h"
+
+struct z_erofs_lzma {
+	struct z_erofs_lzma *next;
+	struct xz_dec_microlzma *state;
+	struct xz_buf buf;
+	u8 bounce[PAGE_SIZE];
+};
+
+/* considering the LZMA performance, no need to use a lockless list for now */
+static DEFINE_SPINLOCK(z_erofs_lzma_lock);
+static unsigned int z_erofs_lzma_max_dictsize;
+static unsigned int z_erofs_lzma_nstrms, z_erofs_lzma_avail_strms;
+static struct z_erofs_lzma *z_erofs_lzma_head;
+static DECLARE_WAIT_QUEUE_HEAD(z_erofs_lzma_wq);
+
+module_param_named(lzma_streams, z_erofs_lzma_nstrms, uint, 0444);
+
+void z_erofs_lzma_exit(void)
+{
+	/* there should be no running fs instance */
+	while (z_erofs_lzma_avail_strms) {
+		struct z_erofs_lzma *strm;
+
+		spin_lock(&z_erofs_lzma_lock);
+		strm = z_erofs_lzma_head;
+		if (!strm) {
+			spin_unlock(&z_erofs_lzma_lock);
+			DBG_BUGON(1);
+			return;
+		}
+		z_erofs_lzma_head = NULL;
+		spin_unlock(&z_erofs_lzma_lock);
+
+		while (strm) {
+			struct z_erofs_lzma *n = strm->next;
+
+			if (strm->state)
+				xz_dec_microlzma_end(strm->state);
+			kfree(strm);
+			--z_erofs_lzma_avail_strms;
+			strm = n;
+		}
+	}
+}
+
+int z_erofs_lzma_init(void)
+{
+	unsigned int i;
+
+	/* by default, use # of possible CPUs instead */
+	if (!z_erofs_lzma_nstrms)
+		z_erofs_lzma_nstrms = num_possible_cpus();
+
+	for (i = 0; i < z_erofs_lzma_nstrms; ++i) {
+		struct z_erofs_lzma *strm = kzalloc(sizeof(*strm), GFP_KERNEL);
+
+		if (!strm) {
+			z_erofs_lzma_exit();
+			return -ENOMEM;
+		}
+		spin_lock(&z_erofs_lzma_lock);
+		strm->next = z_erofs_lzma_head;
+		z_erofs_lzma_head = strm;
+		spin_unlock(&z_erofs_lzma_lock);
+		++z_erofs_lzma_avail_strms;
+	}
+	return 0;
+}
+
+int z_erofs_load_lzma_config(struct super_block *sb,
+			     struct erofs_super_block *dsb,
+			     struct z_erofs_lzma_cfgs *lzma, int size)
+{
+	static DEFINE_MUTEX(lzma_resize_mutex);
+	unsigned int dict_size, i;
+	struct z_erofs_lzma *strm, *head = NULL;
+	int err;
+
+	if (!lzma || size < sizeof(struct z_erofs_lzma_cfgs)) {
+		erofs_err(sb, "invalid lzma cfgs, size=%u", size);
+		return -EINVAL;
+	}
+	if (lzma->format) {
+		erofs_err(sb, "unidentified lzma format %x, please check kernel version",
+			  le16_to_cpu(lzma->format));
+		return -EINVAL;
+	}
+	dict_size = le32_to_cpu(lzma->dict_size);
+	if (dict_size > Z_EROFS_LZMA_MAX_DICT_SIZE || dict_size < 4096) {
+		erofs_err(sb, "unsupported lzma dictionary size %u",
+			  dict_size);
+		return -EINVAL;
+	}
+
+	erofs_info(sb, "EXPERIMENTAL MicroLZMA in use. Use at your own risk!");
+
+	/* in case 2 z_erofs_load_lzma_config() race to avoid deadlock */
+	mutex_lock(&lzma_resize_mutex);
+
+	if (z_erofs_lzma_max_dictsize >= dict_size) {
+		mutex_unlock(&lzma_resize_mutex);
+		return 0;
+	}
+
+	/* 1. collect/isolate all streams for the following check */
+	for (i = 0; i < z_erofs_lzma_avail_strms; ++i) {
+		struct z_erofs_lzma *last;
+
+again:
+		spin_lock(&z_erofs_lzma_lock);
+		strm = z_erofs_lzma_head;
+		if (!strm) {
+			spin_unlock(&z_erofs_lzma_lock);
+			wait_event(z_erofs_lzma_wq,
+				   READ_ONCE(z_erofs_lzma_head));
+			goto again;
+		}
+		z_erofs_lzma_head = NULL;
+		spin_unlock(&z_erofs_lzma_lock);
+
+		for (last = strm; last->next; last = last->next)
+			++i;
+		last->next = head;
+		head = strm;
+	}
+
+	err = 0;
+	/* 2. walk each isolated stream and grow max dict_size if needed */
+	for (strm = head; strm; strm = strm->next) {
+		if (strm->state)
+			xz_dec_microlzma_end(strm->state);
+		strm->state = xz_dec_microlzma_alloc(XZ_PREALLOC, dict_size);
+		if (!strm->state)
+			err = -ENOMEM;
+	}
+
+	/* 3. push back all to the global list and update max dict_size */
+	spin_lock(&z_erofs_lzma_lock);
+	DBG_BUGON(z_erofs_lzma_head);
+	z_erofs_lzma_head = head;
+	spin_unlock(&z_erofs_lzma_lock);
+
+	z_erofs_lzma_max_dictsize = dict_size;
+	mutex_unlock(&lzma_resize_mutex);
+	return err;
+}
+
+int z_erofs_lzma_decompress(struct z_erofs_decompress_req *rq,
+			    struct list_head *pagepool)
+{
+	const unsigned int nrpages_out =
+		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
+	const unsigned int nrpages_in =
+		PAGE_ALIGN(rq->inputsize) >> PAGE_SHIFT;
+	unsigned int inputmargin, inlen, outlen, pageofs;
+	struct z_erofs_lzma *strm;
+	u8 *kin;
+	bool bounced = false;
+	int no, ni, j, err = 0;
+
+	/* 1. get the exact LZMA compressed size */
+	kin = kmap(*rq->in);
+	inputmargin = 0;
+	while (!kin[inputmargin & ~PAGE_MASK])
+		if (!(++inputmargin & ~PAGE_MASK))
+			break;
+
+	if (inputmargin >= PAGE_SIZE) {
+		kunmap(*rq->in);
+		return -EFSCORRUPTED;
+	}
+	rq->inputsize -= inputmargin;
+
+	/* 2. get an available lzma context */
+again:
+	spin_lock(&z_erofs_lzma_lock);
+	strm = z_erofs_lzma_head;
+	if (!strm) {
+		spin_unlock(&z_erofs_lzma_lock);
+		wait_event(z_erofs_lzma_wq, READ_ONCE(z_erofs_lzma_head));
+		goto again;
+	}
+	z_erofs_lzma_head = strm->next;
+	spin_unlock(&z_erofs_lzma_lock);
+
+	/* 3. multi-call decompress */
+	inlen = rq->inputsize;
+	outlen = rq->outputsize;
+	xz_dec_microlzma_reset(strm->state, inlen, outlen,
+			       !rq->partial_decoding);
+	pageofs = rq->pageofs_out;
+	strm->buf.in = kin + inputmargin;
+	strm->buf.in_pos = 0;
+	strm->buf.in_size = min_t(u32, inlen, PAGE_SIZE - inputmargin);
+	inlen -= strm->buf.in_size;
+	strm->buf.out = NULL;
+	strm->buf.out_pos = 0;
+	strm->buf.out_size = 0;
+
+	for (ni = 0, no = -1;;) {
+		enum xz_ret xz_err;
+
+		if (strm->buf.out_pos == strm->buf.out_size) {
+			if (strm->buf.out) {
+				kunmap(rq->out[no]);
+				strm->buf.out = NULL;
+			}
+
+			if (++no >= nrpages_out || !outlen) {
+				erofs_err(rq->sb, "decompressed buf out of bound");
+				err = -EFSCORRUPTED;
+				break;
+			}
+			strm->buf.out_pos = 0;
+			strm->buf.out_size = min_t(u32, outlen,
+						   PAGE_SIZE - pageofs);
+			outlen -= strm->buf.out_size;
+			if (rq->out[no])
+				strm->buf.out = kmap(rq->out[no]) + pageofs;
+			pageofs = 0;
+		} else if (strm->buf.in_pos == strm->buf.in_size) {
+			kunmap(rq->in[ni]);
+
+			if (++ni >= nrpages_in || !inlen) {
+				erofs_err(rq->sb, "compressed buf out of bound");
+				err = -EFSCORRUPTED;
+				break;
+			}
+			strm->buf.in_pos = 0;
+			strm->buf.in_size = min_t(u32, inlen, PAGE_SIZE);
+			inlen -= strm->buf.in_size;
+			kin = kmap(rq->in[ni]);
+			strm->buf.in = kin;
+			bounced = false;
+		}
+
+		/*
+		 * Handle overlapping: Use bounced buffer if the compressed
+		 * data is under processing; Otherwise, Use short-lived pages
+		 * from the on-stack pagepool where pages share with the same
+		 * request.
+		 */
+		if (!bounced && rq->out[no] == rq->in[ni]) {
+			memcpy(strm->bounce, strm->buf.in, strm->buf.in_size);
+			strm->buf.in = strm->bounce;
+			bounced = true;
+		}
+		for (j = ni + 1; j < nrpages_in; ++j) {
+			struct page *tmppage;
+
+			if (rq->out[no] != rq->in[j])
+				continue;
+
+			DBG_BUGON(erofs_page_is_managed(EROFS_SB(rq->sb),
+							rq->in[j]));
+			tmppage = erofs_allocpage(pagepool,
+						  GFP_KERNEL | __GFP_NOFAIL);
+			set_page_private(tmppage, Z_EROFS_SHORTLIVED_PAGE);
+			copy_highpage(tmppage, rq->in[j]);
+			rq->in[j] = tmppage;
+		}
+		xz_err = xz_dec_microlzma_run(strm->state, &strm->buf);
+		DBG_BUGON(strm->buf.out_pos > strm->buf.out_size);
+		DBG_BUGON(strm->buf.in_pos > strm->buf.in_size);
+
+		if (xz_err != XZ_OK) {
+			if (xz_err == XZ_STREAM_END && !outlen)
+				break;
+			erofs_err(rq->sb, "failed to decompress %d in[%u] out[%u]",
+				  xz_err, rq->inputsize, rq->outputsize);
+			err = -EFSCORRUPTED;
+			break;
+		}
+	}
+	if (no < nrpages_out && strm->buf.out)
+		kunmap(rq->in[no]);
+	if (ni < nrpages_in)
+		kunmap(rq->in[ni]);
+	/* 4. push back LZMA stream context to the global list */
+	spin_lock(&z_erofs_lzma_lock);
+	strm->next = z_erofs_lzma_head;
+	z_erofs_lzma_head = strm;
+	spin_unlock(&z_erofs_lzma_lock);
+	wake_up(&z_erofs_lzma_wq);
+	return err;
+}
diff --git a/fs/erofs/erofs_fs.h b/fs/erofs/erofs_fs.h
index 1c2917181346e..083997a034e52 100644
--- a/fs/erofs/erofs_fs.h
+++ b/fs/erofs/erofs_fs.h
@@ -264,10 +264,11 @@ struct erofs_inode_chunk_index {
 
 /* available compression algorithm types (for h_algorithmtype) */
 enum {
-	Z_EROFS_COMPRESSION_LZ4	= 0,
+	Z_EROFS_COMPRESSION_LZ4		= 0,
+	Z_EROFS_COMPRESSION_LZMA	= 1,
 	Z_EROFS_COMPRESSION_MAX
 };
-#define Z_EROFS_ALL_COMPR_ALGS		(1 << (Z_EROFS_COMPRESSION_MAX - 1))
+#define Z_EROFS_ALL_COMPR_ALGS		((1 << Z_EROFS_COMPRESSION_MAX) - 1)
 
 /* 14 bytes (+ length field = 16 bytes) */
 struct z_erofs_lz4_cfgs {
@@ -276,6 +277,15 @@ struct z_erofs_lz4_cfgs {
 	u8 reserved[10];
 } __packed;
 
+/* 14 bytes (+ length field = 16 bytes) */
+struct z_erofs_lzma_cfgs {
+	__le32 dict_size;
+	__le16 format;
+	u8 reserved[8];
+} __packed;
+
+#define Z_EROFS_LZMA_MAX_DICT_SIZE	(8 * Z_EROFS_PCLUSTER_MAX_SIZE)
+
 /*
  * bit 0 : COMPACTED_2B indexes (0 - off; 1 - on)
  *  e.g. for 4k logical cluster size,      4B        if compacted 2B is off;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 0eb5caefa066f..5a0021edae63b 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -394,6 +394,8 @@ struct erofs_map_blocks {
  * approach instead if possible since it's more metadata lightweight.)
  */
 #define EROFS_GET_BLOCKS_FIEMAP	0x0002
+/* Used to map the whole extent if non-negligible data is requested for LZMA */
+#define EROFS_GET_BLOCKS_READMORE	0x0004
 
 enum {
 	Z_EROFS_COMPRESSION_SHIFTED = Z_EROFS_COMPRESSION_MAX,
@@ -523,6 +525,26 @@ static inline int z_erofs_load_lz4_config(struct super_block *sb,
 }
 #endif	/* !CONFIG_EROFS_FS_ZIP */
 
+#ifdef CONFIG_EROFS_FS_ZIP_LZMA
+int z_erofs_lzma_init(void);
+void z_erofs_lzma_exit(void);
+int z_erofs_load_lzma_config(struct super_block *sb,
+			     struct erofs_super_block *dsb,
+			     struct z_erofs_lzma_cfgs *lzma, int size);
+#else
+static inline int z_erofs_lzma_init(void) { return 0; }
+static inline int z_erofs_lzma_exit(void) { return 0; }
+static inline int z_erofs_load_lzma_config(struct super_block *sb,
+			     struct erofs_super_block *dsb,
+			     struct z_erofs_lzma_cfgs *lzma, int size) {
+	if (lzma) {
+		erofs_err(sb, "lzma algorithm isn't enabled");
+		return -EINVAL;
+	}
+	return 0;
+}
+#endif	/* !CONFIG_EROFS_FS_ZIP */
+
 #define EFSCORRUPTED    EUCLEAN         /* Filesystem is corrupted */
 
 #endif	/* __EROFS_INTERNAL_H */
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index ba9a947f9eca6..9862457b421a1 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -225,6 +225,9 @@ static int erofs_load_compr_cfgs(struct super_block *sb,
 		case Z_EROFS_COMPRESSION_LZ4:
 			ret = z_erofs_load_lz4_config(sb, dsb, data, size);
 			break;
+		case Z_EROFS_COMPRESSION_LZMA:
+			ret = z_erofs_load_lzma_config(sb, dsb, data, size);
+			break;
 		default:
 			DBG_BUGON(1);
 			ret = -EFAULT;
@@ -840,6 +843,10 @@ static int __init erofs_module_init(void)
 	if (err)
 		goto shrinker_err;
 
+	err = z_erofs_lzma_init();
+	if (err)
+		goto lzma_err;
+
 	erofs_pcpubuf_init();
 	err = z_erofs_init_zip_subsystem();
 	if (err)
@@ -854,6 +861,8 @@ static int __init erofs_module_init(void)
 fs_err:
 	z_erofs_exit_zip_subsystem();
 zip_err:
+	z_erofs_lzma_exit();
+lzma_err:
 	erofs_exit_shrinker();
 shrinker_err:
 	kmem_cache_destroy(erofs_inode_cachep);
@@ -864,11 +873,13 @@ icache_err:
 static void __exit erofs_module_exit(void)
 {
 	unregister_filesystem(&erofs_fs_type);
-	z_erofs_exit_zip_subsystem();
-	erofs_exit_shrinker();
 
-	/* Ensure all RCU free inodes are safe before cache is destroyed. */
+	/* Ensure all RCU free inodes / pclusters are safe to be destroyed. */
 	rcu_barrier();
+
+	z_erofs_exit_zip_subsystem();
+	z_erofs_lzma_exit();
+	erofs_exit_shrinker();
 	kmem_cache_destroy(erofs_inode_cachep);
 	erofs_pcpubuf_exit();
 }
diff --git a/fs/erofs/zdata.h b/fs/erofs/zdata.h
index 3a008f1b9f787..879df53627771 100644
--- a/fs/erofs/zdata.h
+++ b/fs/erofs/zdata.h
@@ -94,13 +94,6 @@ struct z_erofs_decompressqueue {
 	} u;
 };
 
-#define MNGD_MAPPING(sbi)	((sbi)->managed_cache->i_mapping)
-static inline bool erofs_page_is_managed(const struct erofs_sb_info *sbi,
-					 struct page *page)
-{
-	return page->mapping == MNGD_MAPPING(sbi);
-}
-
 #define Z_EROFS_ONLINEPAGE_COUNT_BITS   2
 #define Z_EROFS_ONLINEPAGE_COUNT_MASK   ((1 << Z_EROFS_ONLINEPAGE_COUNT_BITS) - 1)
 #define Z_EROFS_ONLINEPAGE_INDEX_SHIFT  (Z_EROFS_ONLINEPAGE_COUNT_BITS)
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 249388e60f6c8..09624cb38b7ee 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -671,7 +671,10 @@ int z_erofs_map_blocks_iter(struct inode *inode,
 	else
 		map->m_algorithmformat = vi->z_algorithmtype[0];
 
-	if (flags & EROFS_GET_BLOCKS_FIEMAP) {
+	if ((flags & EROFS_GET_BLOCKS_FIEMAP) ||
+	    ((flags & EROFS_GET_BLOCKS_READMORE) &&
+	     map->m_algorithmformat == Z_EROFS_COMPRESSION_LZMA &&
+	     map->m_llen >= EROFS_BLKSIZ)) {
 		err = z_erofs_get_extent_decompressedlen(&m);
 		if (!err)
 			map->m_flags |= EROFS_MAP_FULL_MAPPED;
-- 
GitLab


From a7ab2c0e0c9bc2ce7a1750bc8ed29c1983bc4e90 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Fri, 22 Oct 2021 17:01:20 +0800
Subject: [PATCH 0915/4878] erofs: get rid of ->lru usage

Currently, ->lru is a way to arrange non-LRU pages and has some
in-kernel users. In order to minimize noticable issues of page
reclaim and cache thrashing under high memory presure, limited
temporary pages were all chained with ->lru and can be reused
during the request. However, it seems that ->lru could be removed
when folio is landing.

Let's use page->private to chain temporary pages for now instead
and transform EROFS formally after the topic of the folio / file
page design is finalized.

Link: https://lore.kernel.org/r/20211022090120.14675-1-hsiangkao@linux.alibaba.com
Cc: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Kent Overstreet <kent.overstreet@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/compress.h          | 11 +++++-----
 fs/erofs/decompressor.c      |  8 ++++----
 fs/erofs/decompressor_lzma.c |  2 +-
 fs/erofs/internal.h          |  9 +++++++-
 fs/erofs/pcpubuf.c           |  6 +++---
 fs/erofs/utils.c             | 19 ++++++++++++-----
 fs/erofs/zdata.c             | 40 +++++++++++++++---------------------
 7 files changed, 52 insertions(+), 43 deletions(-)

diff --git a/fs/erofs/compress.h b/fs/erofs/compress.h
index 8ea6a9b149626..5794065049190 100644
--- a/fs/erofs/compress.h
+++ b/fs/erofs/compress.h
@@ -22,7 +22,7 @@ struct z_erofs_decompress_req {
 
 struct z_erofs_decompressor {
 	int (*decompress)(struct z_erofs_decompress_req *rq,
-			  struct list_head *pagepool);
+			  struct page **pagepool);
 	char *name;
 };
 
@@ -64,7 +64,7 @@ static inline bool z_erofs_is_shortlived_page(struct page *page)
 	return true;
 }
 
-static inline bool z_erofs_put_shortlivedpage(struct list_head *pagepool,
+static inline bool z_erofs_put_shortlivedpage(struct page **pagepool,
 					      struct page *page)
 {
 	if (!z_erofs_is_shortlived_page(page))
@@ -75,8 +75,7 @@ static inline bool z_erofs_put_shortlivedpage(struct list_head *pagepool,
 		put_page(page);
 	} else {
 		/* follow the pcluster rule above. */
-		set_page_private(page, 0);
-		list_add(&page->lru, pagepool);
+		erofs_pagepool_add(pagepool, page);
 	}
 	return true;
 }
@@ -89,9 +88,9 @@ static inline bool erofs_page_is_managed(const struct erofs_sb_info *sbi,
 }
 
 int z_erofs_decompress(struct z_erofs_decompress_req *rq,
-		       struct list_head *pagepool);
+		       struct page **pagepool);
 
 /* prototypes for specific algorithms */
 int z_erofs_lzma_decompress(struct z_erofs_decompress_req *rq,
-			    struct list_head *pagepool);
+			    struct page **pagepool);
 #endif
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 8a624d73c1856..a0786b95cdf99 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -57,7 +57,7 @@ int z_erofs_load_lz4_config(struct super_block *sb,
  * all physical pages are consecutive, which can be seen for moderate CR.
  */
 static int z_erofs_lz4_prepare_dstpages(struct z_erofs_decompress_req *rq,
-					struct list_head *pagepool)
+					struct page **pagepool)
 {
 	const unsigned int nr =
 		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -254,7 +254,7 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_decompress_req *rq,
 }
 
 static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq,
-				  struct list_head *pagepool)
+				  struct page **pagepool)
 {
 	const unsigned int nrpages_out =
 		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -296,7 +296,7 @@ dstmap_out:
 }
 
 static int z_erofs_shifted_transform(struct z_erofs_decompress_req *rq,
-				     struct list_head *pagepool)
+				     struct page **pagepool)
 {
 	const unsigned int nrpages_out =
 		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -352,7 +352,7 @@ static struct z_erofs_decompressor decompressors[] = {
 };
 
 int z_erofs_decompress(struct z_erofs_decompress_req *rq,
-		       struct list_head *pagepool)
+		       struct page **pagepool)
 {
 	return decompressors[rq->alg].decompress(rq, pagepool);
 }
diff --git a/fs/erofs/decompressor_lzma.c b/fs/erofs/decompressor_lzma.c
index bd7d9809ecf7c..50045510a1f41 100644
--- a/fs/erofs/decompressor_lzma.c
+++ b/fs/erofs/decompressor_lzma.c
@@ -150,7 +150,7 @@ again:
 }
 
 int z_erofs_lzma_decompress(struct z_erofs_decompress_req *rq,
-			    struct list_head *pagepool)
+			    struct page **pagepool)
 {
 	const unsigned int nrpages_out =
 		PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 5a0021edae63b..d5046bbbcaf1e 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -485,7 +485,14 @@ void erofs_pcpubuf_init(void);
 void erofs_pcpubuf_exit(void);
 
 /* utils.c / zdata.c */
-struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp);
+struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp);
+static inline void erofs_pagepool_add(struct page **pagepool,
+		struct page *page)
+{
+	set_page_private(page, (unsigned long)*pagepool);
+	*pagepool = page;
+}
+void erofs_release_pages(struct page **pagepool);
 
 #ifdef CONFIG_EROFS_FS_ZIP
 int erofs_workgroup_put(struct erofs_workgroup *grp);
diff --git a/fs/erofs/pcpubuf.c b/fs/erofs/pcpubuf.c
index 6c885575128ac..a2efd833d1b6c 100644
--- a/fs/erofs/pcpubuf.c
+++ b/fs/erofs/pcpubuf.c
@@ -49,7 +49,7 @@ int erofs_pcpubuf_growsize(unsigned int nrpages)
 {
 	static DEFINE_MUTEX(pcb_resize_mutex);
 	static unsigned int pcb_nrpages;
-	LIST_HEAD(pagepool);
+	struct page *pagepool = NULL;
 	int delta, cpu, ret, i;
 
 	mutex_lock(&pcb_resize_mutex);
@@ -102,13 +102,13 @@ int erofs_pcpubuf_growsize(unsigned int nrpages)
 			vunmap(old_ptr);
 free_pagearray:
 		while (i)
-			list_add(&oldpages[--i]->lru, &pagepool);
+			erofs_pagepool_add(&pagepool, oldpages[--i]);
 		kfree(oldpages);
 		if (ret)
 			break;
 	}
 	pcb_nrpages = nrpages;
-	put_pages_list(&pagepool);
+	erofs_release_pages(&pagepool);
 out:
 	mutex_unlock(&pcb_resize_mutex);
 	return ret;
diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index bd86067a63f7f..84da2c2800129 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -6,20 +6,29 @@
 #include "internal.h"
 #include <linux/pagevec.h>
 
-struct page *erofs_allocpage(struct list_head *pool, gfp_t gfp)
+struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp)
 {
-	struct page *page;
+	struct page *page = *pagepool;
 
-	if (!list_empty(pool)) {
-		page = lru_to_page(pool);
+	if (page) {
 		DBG_BUGON(page_ref_count(page) != 1);
-		list_del(&page->lru);
+		*pagepool = (struct page *)page_private(page);
 	} else {
 		page = alloc_page(gfp);
 	}
 	return page;
 }
 
+void erofs_release_pages(struct page **pagepool)
+{
+	while (*pagepool) {
+		struct page *page = *pagepool;
+
+		*pagepool = (struct page *)page_private(page);
+		put_page(page);
+	}
+}
+
 #ifdef CONFIG_EROFS_FS_ZIP
 /* global shrink count (for all mounted EROFS instances) */
 static atomic_long_t erofs_global_shrink_cnt;
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index ae9fbed876870..81314fe9b4272 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -236,7 +236,7 @@ static DEFINE_MUTEX(z_pagemap_global_lock);
 static void preload_compressed_pages(struct z_erofs_collector *clt,
 				     struct address_space *mc,
 				     enum z_erofs_cache_alloctype type,
-				     struct list_head *pagepool)
+				     struct page **pagepool)
 {
 	struct z_erofs_pcluster *pcl = clt->pcl;
 	bool standalone = true;
@@ -287,12 +287,10 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 		if (!cmpxchg_relaxed(pages, NULL, tagptr_cast_ptr(t)))
 			continue;
 
-		if (page) {
+		if (page)
 			put_page(page);
-		} else if (newpage) {
-			set_page_private(newpage, 0);
-			list_add(&newpage->lru, pagepool);
-		}
+		else if (newpage)
+			erofs_pagepool_add(pagepool, newpage);
 	}
 
 	/*
@@ -643,7 +641,7 @@ static bool should_alloc_managed_pages(struct z_erofs_decompress_frontend *fe,
 }
 
 static int z_erofs_do_read_page(struct z_erofs_decompress_frontend *fe,
-				struct page *page, struct list_head *pagepool)
+				struct page *page, struct page **pagepool)
 {
 	struct inode *const inode = fe->inode;
 	struct erofs_sb_info *const sbi = EROFS_I_SB(inode);
@@ -836,7 +834,7 @@ static void z_erofs_decompressqueue_endio(struct bio *bio)
 
 static int z_erofs_decompress_pcluster(struct super_block *sb,
 				       struct z_erofs_pcluster *pcl,
-				       struct list_head *pagepool)
+				       struct page **pagepool)
 {
 	struct erofs_sb_info *const sbi = EROFS_SB(sb);
 	struct z_erofs_pagevec_ctor ctor;
@@ -1036,7 +1034,7 @@ out:
 }
 
 static void z_erofs_decompress_queue(const struct z_erofs_decompressqueue *io,
-				     struct list_head *pagepool)
+				     struct page **pagepool)
 {
 	z_erofs_next_pcluster_t owned = io->head;
 
@@ -1060,18 +1058,18 @@ static void z_erofs_decompressqueue_work(struct work_struct *work)
 {
 	struct z_erofs_decompressqueue *bgq =
 		container_of(work, struct z_erofs_decompressqueue, u.work);
-	LIST_HEAD(pagepool);
+	struct page *pagepool = NULL;
 
 	DBG_BUGON(bgq->head == Z_EROFS_PCLUSTER_TAIL_CLOSED);
 	z_erofs_decompress_queue(bgq, &pagepool);
 
-	put_pages_list(&pagepool);
+	erofs_release_pages(&pagepool);
 	kvfree(bgq);
 }
 
 static struct page *pickup_page_for_submission(struct z_erofs_pcluster *pcl,
 					       unsigned int nr,
-					       struct list_head *pagepool,
+					       struct page **pagepool,
 					       struct address_space *mc,
 					       gfp_t gfp)
 {
@@ -1173,7 +1171,7 @@ repeat:
 out_allocpage:
 	page = erofs_allocpage(pagepool, gfp | __GFP_NOFAIL);
 	if (oldpage != cmpxchg(&pcl->compressed_pages[nr], oldpage, page)) {
-		list_add(&page->lru, pagepool);
+		erofs_pagepool_add(pagepool, page);
 		cond_resched();
 		goto repeat;
 	}
@@ -1257,7 +1255,7 @@ static void move_to_bypass_jobqueue(struct z_erofs_pcluster *pcl,
 
 static void z_erofs_submit_queue(struct super_block *sb,
 				 struct z_erofs_decompress_frontend *f,
-				 struct list_head *pagepool,
+				 struct page **pagepool,
 				 struct z_erofs_decompressqueue *fgq,
 				 bool *force_fg)
 {
@@ -1366,7 +1364,7 @@ submit_bio_retry:
 
 static void z_erofs_runqueue(struct super_block *sb,
 			     struct z_erofs_decompress_frontend *f,
-			     struct list_head *pagepool, bool force_fg)
+			     struct page **pagepool, bool force_fg)
 {
 	struct z_erofs_decompressqueue io[NR_JOBQUEUES];
 
@@ -1392,8 +1390,8 @@ static int z_erofs_readpage(struct file *file, struct page *page)
 {
 	struct inode *const inode = page->mapping->host;
 	struct z_erofs_decompress_frontend f = DECOMPRESS_FRONTEND_INIT(inode);
+	struct page *pagepool = NULL;
 	int err;
-	LIST_HEAD(pagepool);
 
 	trace_erofs_readpage(page, false);
 
@@ -1411,8 +1409,7 @@ static int z_erofs_readpage(struct file *file, struct page *page)
 	if (f.map.mpage)
 		put_page(f.map.mpage);
 
-	/* clean up the remaining free pages */
-	put_pages_list(&pagepool);
+	erofs_release_pages(&pagepool);
 	return err;
 }
 
@@ -1425,8 +1422,7 @@ static void z_erofs_readahead(struct readahead_control *rac)
 	bool sync = (sbi->opt.readahead_sync_decompress &&
 			nr_pages <= sbi->opt.max_sync_decompress_pages);
 	struct z_erofs_decompress_frontend f = DECOMPRESS_FRONTEND_INIT(inode);
-	struct page *page, *head = NULL;
-	LIST_HEAD(pagepool);
+	struct page *pagepool = NULL, *head = NULL, *page;
 
 	trace_erofs_readpages(inode, readahead_index(rac), nr_pages, false);
 
@@ -1468,9 +1464,7 @@ static void z_erofs_readahead(struct readahead_control *rac)
 
 	if (f.map.mpage)
 		put_page(f.map.mpage);
-
-	/* clean up the remaining free pages */
-	put_pages_list(&pagepool);
+	erofs_release_pages(&pagepool);
 }
 
 const struct address_space_operations z_erofs_aops = {
-- 
GitLab


From 9aa5b001010b8c243805cdca86405f9f8baa4e3a Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Mon, 25 Oct 2021 15:43:11 +0800
Subject: [PATCH 0916/4878] erofs: don't trigger WARN() when decompression
 fails

syzbot reported a WARNING [1] due to corrupted compressed data.

As Dmitry said, "If this is not a kernel bug, then the code should
not use WARN. WARN if for kernel bugs and is recognized as such by
all testing systems and humans."

[1] https://lore.kernel.org/r/000000000000b3586105cf0ff45e@google.com

Link: https://lore.kernel.org/r/20211025074311.130395-1-hsiangkao@linux.alibaba.com
Cc: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Reported-by: syzbot+d8aaffc3719597e8cfb4@syzkaller.appspotmail.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/decompressor.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index a0786b95cdf99..bf37fc76b1824 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -227,7 +227,6 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_decompress_req *rq,
 		erofs_err(rq->sb, "failed to decompress %d in[%u, %u] out[%u]",
 			  ret, rq->inputsize, inputmargin, rq->outputsize);
 
-		WARN_ON(1);
 		print_hex_dump(KERN_DEBUG, "[ in]: ", DUMP_PREFIX_OFFSET,
 			       16, 1, src + inputmargin, rq->inputsize, true);
 		print_hex_dump(KERN_DEBUG, "[out]: ", DUMP_PREFIX_OFFSET,
-- 
GitLab


From 11706e9d570f541d4e39999c1865d1ba3e1415e2 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Thu, 4 Nov 2021 02:20:06 +0800
Subject: [PATCH 0917/4878] erofs: fix unsafe pagevec reuse of hooked pclusters

There are pclusters in runtime marked with Z_EROFS_PCLUSTER_TAIL
before actual I/O submission. Thus, the decompression chain can be
extended if the following pcluster chain hooks such tail pcluster.

As the related comment mentioned, if some page is made of a hooked
pcluster and another followed pcluster, it can be reused for in-place
I/O (since I/O should be submitted anyway):
 _______________________________________________________________
|  tail (partial) page |          head (partial) page           |
|_____PRIMARY_HOOKED___|____________PRIMARY_FOLLOWED____________|

However, it's by no means safe to reuse as pagevec since if such
PRIMARY_HOOKED pclusters finally move into bypass chain without I/O
submission. It's somewhat hard to reproduce with LZ4 and I just found
it (general protection fault) by ro_fsstressing a LZMA image for long
time.

I'm going to actively clean up related code together with multi-page
folio adaption in the next few months. Let's address it directly for
easier backporting for now.

Call trace for reference:
  z_erofs_decompress_pcluster+0x10a/0x8a0 [erofs]
  z_erofs_decompress_queue.isra.36+0x3c/0x60 [erofs]
  z_erofs_runqueue+0x5f3/0x840 [erofs]
  z_erofs_readahead+0x1e8/0x320 [erofs]
  read_pages+0x91/0x270
  page_cache_ra_unbounded+0x18b/0x240
  filemap_get_pages+0x10a/0x5f0
  filemap_read+0xa9/0x330
  new_sync_read+0x11b/0x1a0
  vfs_read+0xf1/0x190

Link: https://lore.kernel.org/r/20211103182006.4040-1-xiang@kernel.org
Fixes: 3883a79abd02 ("staging: erofs: introduce VLE decompression support")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
---
 fs/erofs/zdata.c | 13 +++++++------
 fs/erofs/zpvec.h | 13 ++++++++++---
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 81314fe9b4272..c3e008dec4cbb 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -371,8 +371,8 @@ static bool z_erofs_try_inplace_io(struct z_erofs_collector *clt,
 
 /* callers must be with collection lock held */
 static int z_erofs_attach_page(struct z_erofs_collector *clt,
-			       struct page *page,
-			       enum z_erofs_page_type type)
+			       struct page *page, enum z_erofs_page_type type,
+			       bool pvec_safereuse)
 {
 	int ret;
 
@@ -382,9 +382,9 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 	    z_erofs_try_inplace_io(clt, page))
 		return 0;
 
-	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type);
+	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type,
+				      pvec_safereuse);
 	clt->cl->vcnt += (unsigned int)ret;
-
 	return ret ? 0 : -EAGAIN;
 }
 
@@ -727,7 +727,8 @@ hitted:
 		tight &= (clt->mode >= COLLECT_PRIMARY_FOLLOWED);
 
 retry:
-	err = z_erofs_attach_page(clt, page, page_type);
+	err = z_erofs_attach_page(clt, page, page_type,
+				  clt->mode >= COLLECT_PRIMARY_FOLLOWED);
 	/* should allocate an additional short-lived page for pagevec */
 	if (err == -EAGAIN) {
 		struct page *const newpage =
@@ -735,7 +736,7 @@ retry:
 
 		set_page_private(newpage, Z_EROFS_SHORTLIVED_PAGE);
 		err = z_erofs_attach_page(clt, newpage,
-					  Z_EROFS_PAGE_TYPE_EXCLUSIVE);
+					  Z_EROFS_PAGE_TYPE_EXCLUSIVE, true);
 		if (!err)
 			goto retry;
 	}
diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h
index dfd7fe0503bb1..b05464f4a8083 100644
--- a/fs/erofs/zpvec.h
+++ b/fs/erofs/zpvec.h
@@ -106,11 +106,18 @@ static inline void z_erofs_pagevec_ctor_init(struct z_erofs_pagevec_ctor *ctor,
 
 static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
 					   struct page *page,
-					   enum z_erofs_page_type type)
+					   enum z_erofs_page_type type,
+					   bool pvec_safereuse)
 {
-	if (!ctor->next && type)
-		if (ctor->index + 1 == ctor->nr)
+	if (!ctor->next) {
+		/* some pages cannot be reused as pvec safely without I/O */
+		if (type == Z_EROFS_PAGE_TYPE_EXCLUSIVE && !pvec_safereuse)
+			type = Z_EROFS_VLE_PAGE_TYPE_TAIL_SHARED;
+
+		if (type != Z_EROFS_PAGE_TYPE_EXCLUSIVE &&
+		    ctor->index + 1 == ctor->nr)
 			return false;
+	}
 
 	if (ctor->index >= ctor->nr)
 		z_erofs_pagevec_ctor_pagedown(ctor, false);
-- 
GitLab


From 538b323267fed12cb083d3e8c8dfdca112729b79 Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Sat, 6 Nov 2021 16:23:15 +0800
Subject: [PATCH 0918/4878] erofs: remove useless cache strategy of
 DELAYEDALLOC

After commit 1825c8d7ce93 ("erofs: force inplace I/O under low
memory scenario") and TRYALLOC is widely used, DELAYEDALLOC won't
be used anymore. Remove related dead code. Also, remove the blank
line at the end of zdata.h.

Link: https://lore.kernel.org/r/20211106082315.25781-1-huyue2@yulong.com
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Yue Hu <huyue2@yulong.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 fs/erofs/zdata.c | 20 --------------------
 fs/erofs/zdata.h |  1 -
 2 files changed, 21 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index c3e008dec4cbb..03a3dafc82f3e 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -96,16 +96,9 @@ static void z_erofs_free_pcluster(struct z_erofs_pcluster *pcl)
 	DBG_BUGON(1);
 }
 
-/*
- * a compressed_pages[] placeholder in order to avoid
- * being filled with file pages for in-place decompression.
- */
-#define PAGE_UNALLOCATED     ((void *)0x5F0E4B1D)
-
 /* how to allocate cached pages for a pcluster */
 enum z_erofs_cache_alloctype {
 	DONTALLOC,	/* don't allocate any cached pages */
-	DELAYEDALLOC,	/* delayed allocation (at the time of submitting io) */
 	/*
 	 * try to use cached I/O if page allocation succeeds or fallback
 	 * to in-place I/O instead to avoid any direct reclaim.
@@ -267,10 +260,6 @@ static void preload_compressed_pages(struct z_erofs_collector *clt,
 			/* I/O is needed, no possible to decompress directly */
 			standalone = false;
 			switch (type) {
-			case DELAYEDALLOC:
-				t = tagptr_init(compressed_page_t,
-						PAGE_UNALLOCATED);
-				break;
 			case TRYALLOC:
 				newpage = erofs_allocpage(pagepool, gfp);
 				if (!newpage)
@@ -1090,15 +1079,6 @@ repeat:
 	if (!page)
 		goto out_allocpage;
 
-	/*
-	 * the cached page has not been allocated and
-	 * an placeholder is out there, prepare it now.
-	 */
-	if (page == PAGE_UNALLOCATED) {
-		tocache = true;
-		goto out_allocpage;
-	}
-
 	/* process the target tagged pointer */
 	t = tagptr_init(compressed_page_t, page);
 	justfound = tagptr_unfold_tags(t);
diff --git a/fs/erofs/zdata.h b/fs/erofs/zdata.h
index 879df53627771..4a69515dea755 100644
--- a/fs/erofs/zdata.h
+++ b/fs/erofs/zdata.h
@@ -179,4 +179,3 @@ static inline void z_erofs_onlinepage_endio(struct page *page)
 #define Z_EROFS_VMAP_GLOBAL_PAGES	2048
 
 #endif
-
-- 
GitLab


From c10b6b7ad06b24fade34e327a41f51add35bd1db Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Tue, 16 Nov 2021 12:25:03 +0800
Subject: [PATCH 0919/4878] Revert "sched/fair: Ensure _sum and _avg values
 stay consistent"

This reverts commit 20285dc2711c96a7fc1a72707823c580702edde6, which
causes serious performance downgrade because the calculated cpu
frequency will be much lower than before due to change of cpu util.

Bug: 205915994
Test: build pass
Change-Id: I68dced7a58547a3324fcfeebea6c02bb30c4182d
Signed-off-by: Rick Yiu <rickyiu@google.com>
(cherry picked from commit 8630facf34057a107e55b0e0138f7c5841908119)
---
 kernel/sched/fair.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f02c75acc15c1..fe82c8a7cd4bd 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3681,15 +3681,15 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 
 		r = removed_load;
 		sub_positive(&sa->load_avg, r);
-		sa->load_sum = sa->load_avg * divider;
+		sub_positive(&sa->load_sum, r * divider);
 
 		r = removed_util;
 		sub_positive(&sa->util_avg, r);
-		sa->util_sum = sa->util_avg * divider;
+		sub_positive(&sa->util_sum, r * divider);
 
 		r = removed_runnable;
 		sub_positive(&sa->runnable_avg, r);
-		sa->runnable_sum = sa->runnable_avg * divider;
+		sub_positive(&sa->runnable_sum, r * divider);
 
 		/*
 		 * removed_runnable is the unweighted version of removed_load so we
-- 
GitLab


From e02c69db3cafc7c46dd27b51bfe6989fc9c1c40d Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Tue, 16 Nov 2021 12:34:15 +0800
Subject: [PATCH 0920/4878] Revert "sched/fair: Keep load_avg and load_sum
 synced"

This reverts commit 4c37b062edae8ad3e1f279ecc084f254bc8161ae.

Bug: 205915994
Test: build pass
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ifb4ca2d5beab425665b1cc047899e33ceb0ded23
(cherry picked from commit d736cbf8d9ac2f39a42a1b784c384b0ad12c28d9)
---
 kernel/sched/fair.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index fe82c8a7cd4bd..1f176a5c19d87 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3510,9 +3510,10 @@ update_tg_cfs_runnable(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cf
 static inline void
 update_tg_cfs_load(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq *gcfs_rq)
 {
-	long delta, running_sum, runnable_sum = gcfs_rq->prop_runnable_sum;
+	long delta_avg, running_sum, runnable_sum = gcfs_rq->prop_runnable_sum;
 	unsigned long load_avg;
 	u64 load_sum = 0;
+	s64 delta_sum;
 	u32 divider;
 
 	if (!runnable_sum)
@@ -3559,13 +3560,13 @@ update_tg_cfs_load(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq
 	load_sum = (s64)se_weight(se) * runnable_sum;
 	load_avg = div_s64(load_sum, divider);
 
-	delta = load_avg - se->avg.load_avg;
+	delta_sum = load_sum - (s64)se_weight(se) * se->avg.load_sum;
+	delta_avg = load_avg - se->avg.load_avg;
 
 	se->avg.load_sum = runnable_sum;
 	se->avg.load_avg = load_avg;
-
-	add_positive(&cfs_rq->avg.load_avg, delta);
-	cfs_rq->avg.load_sum = cfs_rq->avg.load_avg * divider;
+	add_positive(&cfs_rq->avg.load_avg, delta_avg);
+	add_positive(&cfs_rq->avg.load_sum, delta_sum);
 }
 
 static inline void add_tg_cfs_propagate(struct cfs_rq *cfs_rq, long runnable_sum)
-- 
GitLab


From 5185067fe7cc9a43dae2a937998c6c9b4d89739f Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Tue, 16 Nov 2021 12:33:07 +0800
Subject: [PATCH 0921/4878] Revert "sched/pelt: Ensure that *_sum is always
 synced with *_avg"

This reverts commit 813ff24f1d08cb4b4605fe222bb104a8dbdfd7f5.

Bug: 205915994
Test: build pass
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I77d9a103d71da43ce2fe9b630c7a5e12b62e8e42
(cherry picked from commit de0ba4ea3c417b3cac2f6cef6fcbae6bde36b88d)
---
 kernel/sched/fair.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1f176a5c19d87..ed13040b62157 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3777,17 +3777,11 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
  */
 static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
-	/*
-	 * cfs_rq->avg.period_contrib can be used for both cfs_rq and se.
-	 * See ___update_load_avg() for details.
-	 */
-	u32 divider = get_pelt_divider(&cfs_rq->avg);
-
 	dequeue_load_avg(cfs_rq, se);
 	sub_positive(&cfs_rq->avg.util_avg, se->avg.util_avg);
-	cfs_rq->avg.util_sum = cfs_rq->avg.util_avg * divider;
+	sub_positive(&cfs_rq->avg.util_sum, se->avg.util_sum);
 	sub_positive(&cfs_rq->avg.runnable_avg, se->avg.runnable_avg);
-	cfs_rq->avg.runnable_sum = cfs_rq->avg.runnable_avg * divider;
+	sub_positive(&cfs_rq->avg.runnable_sum, se->avg.runnable_sum);
 
 	add_tg_cfs_propagate(cfs_rq, -se->avg.load_sum);
 
-- 
GitLab


From 376fc5111040f1b591219204f104eb7ccdf08a88 Mon Sep 17 00:00:00 2001
From: Konstantin Vyshetsky <vkon@google.com>
Date: Tue, 16 Nov 2021 15:54:22 -0800
Subject: [PATCH 0922/4878] ANDROID: ABI: update generic symbol list

add blkdev_get_by_path

Bug: 202417931

Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Change-Id: Ifd392eedd355bd277ff84505b4031997a23c3d43
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 05167e50c3c62..1a26599275efc 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -65,6 +65,7 @@
   blk_alloc_queue
   blk_cleanup_queue
   blkdev_get_by_dev
+  blkdev_get_by_path
   blkdev_put
   blk_execute_rq_nowait
   blk_get_request
-- 
GitLab


From 3e4b4977f4f79863e46e4141856eda29b8d2ce2e Mon Sep 17 00:00:00 2001
From: Anton Yakovlev <anton.yakovlev@opensynergy.com>
Date: Tue, 2 Mar 2021 17:47:01 +0100
Subject: [PATCH 0923/4878] BACKPORT: uapi: virtio_ids: add a sound device type
 ID from OASIS spec

The OASIS virtio spec defines a sound device type ID that is not
present in the header yet.

Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com>
Link: https://lore.kernel.org/r/20210302164709.3142702-2-anton.yakovlev@opensynergy.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

(cherry picked from commit 0ae0337f929a970ee8d83e0e95e6b8d05562ce3b
https://github.com/torvalds/linux.git master)

Change-Id: I486371e1ec8d25d42f85f710ce82e866367df4da
Signed-off-by: Hao Chen <chenhaosjtuacm@google.com>
Signed-off-by: Alistair Delva <adelva@google.com>
---
 include/uapi/linux/virtio_ids.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/virtio_ids.h b/include/uapi/linux/virtio_ids.h
index b052355ac7a32..bc740d6d22593 100644
--- a/include/uapi/linux/virtio_ids.h
+++ b/include/uapi/linux/virtio_ids.h
@@ -45,6 +45,7 @@
 #define VIRTIO_ID_CRYPTO       20 /* virtio crypto */
 #define VIRTIO_ID_IOMMU        23 /* virtio IOMMU */
 #define VIRTIO_ID_MEM          24 /* virtio mem */
+#define VIRTIO_ID_SOUND        25 /* virtio sound */
 #define VIRTIO_ID_FS           26 /* virtio filesystem */
 #define VIRTIO_ID_PMEM         27 /* virtio pmem */
 #define VIRTIO_ID_MAC80211_HWSIM 29 /* virtio mac80211-hwsim */
-- 
GitLab


From 82e9b6cf4bda69875b585ac520ad7271237e0cf1 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 27 May 2021 16:52:36 -0700
Subject: [PATCH 0924/4878] fscrypt: don't ignore minor_hash when hash is 0

When initializing a no-key name, fscrypt_fname_disk_to_usr() sets the
minor_hash to 0 if the (major) hash is 0.

This doesn't make sense because 0 is a valid hash code, so we shouldn't
ignore the filesystem-provided minor_hash in that case.  Fix this by
removing the special case for 'hash == 0'.

This is an old bug that appears to have originated when the encryption
code in ext4 and f2fs was moved into fs/crypto/.  The original ext4 and
f2fs code passed the hash by pointer instead of by value.  So
'if (hash)' actually made sense then, as it was checking whether a
pointer was NULL.  But now the hashes are passed by value, and
filesystems just pass 0 for any hashes they don't have.  There is no
need to handle this any differently from the hashes actually being 0.

It is difficult to reproduce this bug, as it only made a difference in
the case where a filename's 32-bit major hash happened to be 0.
However, it probably had the largest chance of causing problems on
ubifs, since ubifs uses minor_hash to do lookups of no-key names, in
addition to using it as a readdir cookie.  ext4 only uses minor_hash as
a readdir cookie, and f2fs doesn't use minor_hash at all.

Fixes: 0b81d0779072 ("fs crypto: move per-file encryption from f2fs tree to fs/crypto")
Cc: <stable@vger.kernel.org> # v4.6+
Link: https://lore.kernel.org/r/20210527235236.2376556-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/fname.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 19ee4e82eb8d5..ac1d349863550 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -366,13 +366,9 @@ int fscrypt_fname_disk_to_usr(const struct inode *inode,
 		     offsetof(struct fscrypt_nokey_name, sha256));
 	BUILD_BUG_ON(FSCRYPT_NOKEY_NAME_MAX_ENCODED > NAME_MAX);
 
-	if (hash) {
-		nokey_name.dirhash[0] = hash;
-		nokey_name.dirhash[1] = minor_hash;
-	} else {
-		nokey_name.dirhash[0] = 0;
-		nokey_name.dirhash[1] = 0;
-	}
+	nokey_name.dirhash[0] = hash;
+	nokey_name.dirhash[1] = minor_hash;
+
 	if (iname->len <= sizeof(nokey_name.bytes)) {
 		memcpy(nokey_name.bytes, iname->name, iname->len);
 		size = offsetof(struct fscrypt_nokey_name, bytes[iname->len]);
-- 
GitLab


From de5a852e5933659256eff5d3cb661ac3c8542cf3 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Sat, 5 Jun 2021 00:50:33 -0700
Subject: [PATCH 0925/4878] fscrypt: fix derivation of SipHash keys on big
 endian CPUs

Typically, the cryptographic APIs that fscrypt uses take keys as byte
arrays, which avoids endianness issues.  However, siphash_key_t is an
exception.  It is defined as 'u64 key[2];', i.e. the 128-bit key is
expected to be given directly as two 64-bit words in CPU endianness.

fscrypt_derive_dirhash_key() and fscrypt_setup_iv_ino_lblk_32_key()
forgot to take this into account.  Therefore, the SipHash keys used to
index encrypted+casefolded directories differ on big endian vs. little
endian platforms, as do the SipHash keys used to hash inode numbers for
IV_INO_LBLK_32-encrypted directories.  This makes such directories
non-portable between these platforms.

Fix this by always using the little endian order.  This is a breaking
change for big endian platforms, but this should be fine in practice
since these features (encrypt+casefold support, and the IV_INO_LBLK_32
flag) aren't known to actually be used on any big endian platforms yet.

Fixes: aa408f835d02 ("fscrypt: derive dirhash key for casefolded directories")
Fixes: e3b1078bedd3 ("fscrypt: add support for IV_INO_LBLK_32 policies")
Cc: <stable@vger.kernel.org> # v5.6+
Link: https://lore.kernel.org/r/20210605075033.54424-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/keysetup.c | 40 ++++++++++++++++++++++++++++++++--------
 1 file changed, 32 insertions(+), 8 deletions(-)

diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
index 56c80e11b1ddd..eede186b04ce3 100644
--- a/fs/crypto/keysetup.c
+++ b/fs/crypto/keysetup.c
@@ -216,15 +216,40 @@ out_unlock:
 	return err;
 }
 
+/*
+ * Derive a SipHash key from the given fscrypt master key and the given
+ * application-specific information string.
+ *
+ * Note that the KDF produces a byte array, but the SipHash APIs expect the key
+ * as a pair of 64-bit words.  Therefore, on big endian CPUs we have to do an
+ * endianness swap in order to get the same results as on little endian CPUs.
+ */
+static int fscrypt_derive_siphash_key(const struct fscrypt_master_key *mk,
+				      u8 context, const u8 *info,
+				      unsigned int infolen, siphash_key_t *key)
+{
+	int err;
+
+	err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf, context, info, infolen,
+				  (u8 *)key, sizeof(*key));
+	if (err)
+		return err;
+
+	BUILD_BUG_ON(sizeof(*key) != 16);
+	BUILD_BUG_ON(ARRAY_SIZE(key->key) != 2);
+	le64_to_cpus(&key->key[0]);
+	le64_to_cpus(&key->key[1]);
+	return 0;
+}
+
 int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
 			       const struct fscrypt_master_key *mk)
 {
 	int err;
 
-	err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf, HKDF_CONTEXT_DIRHASH_KEY,
-				  ci->ci_nonce, FSCRYPT_FILE_NONCE_SIZE,
-				  (u8 *)&ci->ci_dirhash_key,
-				  sizeof(ci->ci_dirhash_key));
+	err = fscrypt_derive_siphash_key(mk, HKDF_CONTEXT_DIRHASH_KEY,
+					 ci->ci_nonce, FSCRYPT_FILE_NONCE_SIZE,
+					 &ci->ci_dirhash_key);
 	if (err)
 		return err;
 	ci->ci_dirhash_key_initialized = true;
@@ -259,10 +284,9 @@ static int fscrypt_setup_iv_ino_lblk_32_key(struct fscrypt_info *ci,
 		if (mk->mk_ino_hash_key_initialized)
 			goto unlock;
 
-		err = fscrypt_hkdf_expand(&mk->mk_secret.hkdf,
-					  HKDF_CONTEXT_INODE_HASH_KEY, NULL, 0,
-					  (u8 *)&mk->mk_ino_hash_key,
-					  sizeof(mk->mk_ino_hash_key));
+		err = fscrypt_derive_siphash_key(mk,
+						 HKDF_CONTEXT_INODE_HASH_KEY,
+						 NULL, 0, &mk->mk_ino_hash_key);
 		if (err)
 			goto unlock;
 		/* pairs with smp_load_acquire() above */
-- 
GitLab


From 4816540c7f48b439157b0460cbc49a98b478c557 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Wed, 3 Nov 2021 11:05:45 +0000
Subject: [PATCH 0926/4878] UPSTREAM: KVM: arm64: Extract ESR_ELx.EC only

Since ARMv8.0 the upper 32 bits of ESR_ELx have been RES0, and recently
some of the upper bits gained a meaning and can be non-zero. For
example, when FEAT_LS64 is implemented, ESR_ELx[36:32] contain ISS2,
which for an ST64BV or ST64BV0 can be non-zero. This can be seen in ARM
DDI 0487G.b, page D13-3145, section D13.2.37.

Generally, we must not rely on RES0 bit remaining zero in future, and
when extracting ESR_ELx.EC we must mask out all other bits.

All C code uses the ESR_ELx_EC() macro, which masks out the irrelevant
bits, and therefore no alterations are required to C code to avoid
consuming irrelevant bits.

In a couple of places the KVM assembly extracts ESR_ELx.EC using LSR on
an X register, and so could in theory consume previously RES0 bits. In
both cases this is for comparison with EC values ESR_ELx_EC_HVC32 and
ESR_ELx_EC_HVC64, for which the upper bits of ESR_ELx must currently be
zero, but this could change in future.

This patch adjusts the KVM vectors to use UBFX rather than LSR to
extract ESR_ELx.EC, ensuring these are robust to future additions to
ESR_ELx.

Cc: stable@vger.kernel.org
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211103110545.4613-1-mark.rutland@arm.com
(cherry picked from commit 8bb084119f1acc2ec55ea085a97231e3ddb30782)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0534f9965de8b9cc657927a13944792719ff1a87
---
 arch/arm64/include/asm/esr.h   | 1 +
 arch/arm64/kvm/hyp/hyp-entry.S | 2 +-
 arch/arm64/kvm/hyp/nvhe/host.S | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h
index 29f97eb3dad41..8f59bbeba7a7e 100644
--- a/arch/arm64/include/asm/esr.h
+++ b/arch/arm64/include/asm/esr.h
@@ -68,6 +68,7 @@
 #define ESR_ELx_EC_MAX		(0x3F)
 
 #define ESR_ELx_EC_SHIFT	(26)
+#define ESR_ELx_EC_WIDTH	(6)
 #define ESR_ELx_EC_MASK		(UL(0x3F) << ESR_ELx_EC_SHIFT)
 #define ESR_ELx_EC(esr)		(((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
 
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index 9aa9b73475c95..b6b6801d96d5a 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -44,7 +44,7 @@
 el1_sync:				// Guest trapped into EL2
 
 	mrs	x0, esr_el2
-	lsr	x0, x0, #ESR_ELx_EC_SHIFT
+	ubfx	x0, x0, #ESR_ELx_EC_SHIFT, #ESR_ELx_EC_WIDTH
 	cmp	x0, #ESR_ELx_EC_HVC64
 	ccmp	x0, #ESR_ELx_EC_HVC32, #4, ne
 	b.ne	el1_trap
diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S
index 537c8db4d5510..8fc25633d6cc9 100644
--- a/arch/arm64/kvm/hyp/nvhe/host.S
+++ b/arch/arm64/kvm/hyp/nvhe/host.S
@@ -141,7 +141,7 @@ SYM_FUNC_END(__host_hvc)
 .L__vect_start\@:
 	stp	x0, x1, [sp, #-16]!
 	mrs	x0, esr_el2
-	lsr	x0, x0, #ESR_ELx_EC_SHIFT
+	ubfx	x0, x0, #ESR_ELx_EC_SHIFT, #ESR_ELx_EC_WIDTH
 	cmp	x0, #ESR_ELx_EC_HVC64
 	b.eq	__host_hvc
 	b	__host_exit
-- 
GitLab


From 34a87d6e6d9428c715845a5f98726625a4fecd36 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 5 Nov 2021 20:25:29 -0700
Subject: [PATCH 0927/4878] UPSTREAM: KVM: arm64: nvhe: Fix a non-kernel-doc
 comment

Do not use kernel-doc "/**" notation when the comment is not in
kernel-doc format.

Fixes this docs build warning:

arch/arm64/kvm/hyp/nvhe/sys_regs.c:478: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Handler for protected VM restricted exceptions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Fuad Tabba <tabba@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211106032529.15057-1-rdunlap@infradead.org
(cherry picked from commit deacd669e18a51cb2085450c56d851aef72b3256)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie5f39f8417faae235f005824d71c4e25274c529c
---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 3787ee6fb1a20..792cf6e6ac920 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -474,7 +474,7 @@ bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code)
 	return true;
 }
 
-/**
+/*
  * Handler for protected VM restricted exceptions.
  *
  * Inject an undefined exception into the guest and return true to indicate that
-- 
GitLab


From ff2a278c781c862cf16c7cc9635e780422325a5c Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Fri, 5 Nov 2021 09:15:00 +0800
Subject: [PATCH 0928/4878] UPSTREAM: KVM: arm64: Change the return type of
 kvm_vcpu_preferred_target()

kvm_vcpu_preferred_target() always return 0 because kvm_target_cpu()
never returns a negative error code.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211105011500.16280-1-yuehaibing@huawei.com
(cherry picked from commit 08e873cb70f30e11e912a93390f1c0c4e65fae1c)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I39e83529eff560f692853be9e9aba8d6200a824c
---
 arch/arm64/include/asm/kvm_host.h | 2 +-
 arch/arm64/kvm/arm.c              | 5 +----
 arch/arm64/kvm/guest.c            | 7 +------
 3 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 73cb8102909f0..49abcb019cc61 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -597,7 +597,7 @@ struct kvm_vcpu_stat {
 	u64 exits;
 };
 
-int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
+void kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
 unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
 int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
 int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 9ebf35a70a6cf..547251459da3d 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1379,12 +1379,9 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		return kvm_vm_ioctl_set_device_addr(kvm, &dev_addr);
 	}
 	case KVM_ARM_PREFERRED_TARGET: {
-		int err;
 		struct kvm_vcpu_init init;
 
-		err = kvm_vcpu_preferred_target(&init);
-		if (err)
-			return err;
+		kvm_vcpu_preferred_target(&init);
 
 		if (copy_to_user(argp, &init, sizeof(init)))
 			return -EFAULT;
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index ffbe664ff838c..b929bbfc4aac2 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -853,13 +853,10 @@ u32 __attribute_const__ kvm_target_cpu(void)
 	return KVM_ARM_TARGET_GENERIC_V8;
 }
 
-int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
+void kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
 {
 	u32 target = kvm_target_cpu();
 
-	if (target < 0)
-		return -ENODEV;
-
 	memset(init, 0, sizeof(*init));
 
 	/*
@@ -869,8 +866,6 @@ int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
 	 * target type.
 	 */
 	init->target = (__u32)target;
-
-	return 0;
 }
 
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
-- 
GitLab


From 2eeecc3e846c605193eff3ec0b6b067b3bcc35c1 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 8 Nov 2021 15:46:32 +0000
Subject: [PATCH 0929/4878] UPSTREAM: KVM: arm64: Fix host stage-2 finalization

We currently walk the hypervisor stage-1 page-table towards the end of
hyp init in nVHE protected mode and adjust the host page ownership
attributes in its stage-2 in order to get a consistent state from both
point of views. The walk is done on the entire hyp VA space, and expects
to only ever find page-level mappings. While this expectation is
reasonable in the half of hyp VA space that maps memory with a fixed
offset (see the loop in pkvm_create_mappings_locked()), it can be
incorrect in the other half where nothing prevents the usage of block
mappings. For instance, on systems where memory is physically aligned at
an address that happens to maps to a PMD aligned VA in the hyp_vmemmap,
kvm_pgtable_hyp_map() will install block mappings when backing the
hyp_vmemmap, which will later cause finalize_host_mappings() to fail.
Furthermore, it should be noted that all pages backing the hyp_vmemmap
are also mapped in the 'fixed offset range' of the hypervisor, which
implies that finalize_host_mappings() will walk both aliases and update
the host stage-2 attributes twice. The order in which this happens is
unpredictable, though, since the hyp VA layout is highly dependent on
the position of the idmap page, hence resulting in a fragile mess at
best.

In order to fix all of this, let's restrict the finalization walk to
only cover memory regions in the 'fixed-offset range' of the hyp VA
space and nothing else. This not only fixes a correctness issue, but
will also result in a slighlty faster hyp initialization overall.

Fixes: 2c50166c62ba ("KVM: arm64: Mark host bss and rodata section as shared")
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211108154636.393384-1-qperret@google.com
(cherry picked from commit 50a8d3315960c74095c59e204db44abd937d4b5d)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iaee2451a22cd174b49498aa5f97ddeafa2670f57
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 5c33ffc5b0065..3fc7409604f32 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -178,7 +178,7 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 
 	phys = kvm_pte_to_phys(pte);
 	if (!addr_is_memory(phys))
-		return 0;
+		return -EINVAL;
 
 	/*
 	 * Adjust the host stage-2 mappings to match the ownership attributes
@@ -207,8 +207,18 @@ static int finalize_host_mappings(void)
 		.cb	= finalize_host_mappings_walker,
 		.flags	= KVM_PGTABLE_WALK_LEAF,
 	};
+	int i, ret;
+
+	for (i = 0; i < hyp_memblock_nr; i++) {
+		struct memblock_region *reg = &hyp_memory[i];
+		u64 start = (u64)hyp_phys_to_virt(reg->base);
+
+		ret = kvm_pgtable_walk(&pkvm_pgtable, start, reg->size, &walker);
+		if (ret)
+			return ret;
+	}
 
-	return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits), &walker);
+	return 0;
 }
 
 static int select_iommu_ops(enum kvm_iommu_driver driver)
-- 
GitLab


From ff32302687fdb7b6b49393d6feecdbe73607b506 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Fri, 5 Nov 2021 18:00:36 +0200
Subject: [PATCH 0930/4878] xhci: Fix USB 3.1 enumeration issues by increasing
 roothub power-on-good delay

commit e1959faf085b004e6c3afaaaa743381f00e7c015 upstream.

Some USB 3.1 enumeration issues were reported after the hub driver removed
the minimum 100ms limit for the power-on-good delay.

Since commit 90d28fb53d4a ("usb: core: reduce power-on-good delay time of
root hub") the hub driver sets the power-on-delay based on the
bPwrOn2PwrGood value in the hub descriptor.

xhci driver has a 20ms bPwrOn2PwrGood value for both roothubs based
on xhci spec section 5.4.8, but it's clearly not enough for the
USB 3.1 devices, causing enumeration issues.

Tests indicate full 100ms delay is needed.

Reported-by: Walt Jr. Brake <mr.yming81@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Fixes: 90d28fb53d4a ("usb: core: reduce power-on-good delay time of root hub")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211105160036.549516-1-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-hub.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 8466527eb2462..41d5a46c1dc1a 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -171,7 +171,6 @@ static void xhci_common_hub_descriptor(struct xhci_hcd *xhci,
 {
 	u16 temp;
 
-	desc->bPwrOn2PwrGood = 10;	/* xhci section 5.4.9 says 20ms max */
 	desc->bHubContrCurrent = 0;
 
 	desc->bNbrPorts = ports;
@@ -206,6 +205,7 @@ static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 	desc->bDescriptorType = USB_DT_HUB;
 	temp = 1 + (ports / 8);
 	desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * temp;
+	desc->bPwrOn2PwrGood = 10;	/* xhci section 5.4.8 says 20ms */
 
 	/* The Device Removable bits are reported on a byte granularity.
 	 * If the port doesn't exist within that byte, the bit is set to 0.
@@ -258,6 +258,7 @@ static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 	xhci_common_hub_descriptor(xhci, desc, ports);
 	desc->bDescriptorType = USB_DT_SS_HUB;
 	desc->bDescLength = USB_DT_SS_HUB_SIZE;
+	desc->bPwrOn2PwrGood = 50;	/* usb 3.1 may fail if less than 100ms */
 
 	/* header decode latency should be zero for roothubs,
 	 * see section 4.23.5.2.
-- 
GitLab


From 7f1d5a1a7d80175f9a1af6b00aa7415c5ba08290 Mon Sep 17 00:00:00 2001
From: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
Date: Thu, 14 Oct 2021 15:12:00 +0300
Subject: [PATCH 0931/4878] usb: xhci: Enable runtime-pm by default on AMD
 Yellow Carp platform

commit 660a92a59b9e831a0407e41ff62875656d30006e upstream.

AMD's Yellow Carp platform supports runtime power management for
XHCI Controllers, so enable the same by default for all XHCI Controllers.

[ regrouped and aligned the PCI_DEVICE_ID definitions -Mathias]

Cc: stable <stable@vger.kernel.org>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211014121200.75433-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 8c65e9476b41f..80251a2579fda 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -64,6 +64,13 @@
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
 #define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1		0x161a
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2		0x161b
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3		0x161d
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4		0x161e
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5		0x15d6
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6		0x15d7
+
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
 #define PCI_DEVICE_ID_ASMEDIA_1142_XHCI			0x1242
@@ -312,6 +319,15 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	     pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4))
 		xhci->quirks |= XHCI_NO_SOFT_RETRY;
 
+	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
+	    (pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_1 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_2 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6))
+		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
+
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
 				"QUIRK: Resetting on resume");
-- 
GitLab


From bd9cea41ac6e08f615030dea28b23e12b7a2674f Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Wed, 10 Nov 2021 15:00:34 -0800
Subject: [PATCH 0932/4878] binder: use euid from cred instead of using task

commit 29bc22ac5e5bc63275e850f0c8fc549e3d0e306b upstream.

Save the 'struct cred' associated with a binder process
at initial open to avoid potential race conditions
when converting to an euid.

Set a transaction's sender_euid from the 'struct cred'
saved at binder_open() instead of looking up the euid
from the binder proc's 'struct task'. This ensures
the euid is associated with the security context that
of the task that opened binder.

Cc: stable@vger.kernel.org # 4.4+
Fixes: 457b9a6f09f0 ("Staging: android: add binder driver")
Signed-off-by: Todd Kjos <tkjos@google.com>
Suggested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Suggested-by: Jann Horn <jannh@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index d9977ce0be76d..b45d33c5bcdbf 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -420,6 +420,9 @@ enum binder_deferred_state {
  *                        (invariant after initialized)
  * @tsk                   task_struct for group_leader of process
  *                        (invariant after initialized)
+ * @cred                  struct cred associated with the `struct file`
+ *                        in binder_open()
+ *                        (invariant after initialized)
  * @deferred_work_node:   element for binder_deferred_list
  *                        (protected by binder_deferred_lock)
  * @deferred_work:        bitmap of deferred work to perform
@@ -465,6 +468,7 @@ struct binder_proc {
 	struct list_head waiting_threads;
 	int pid;
 	struct task_struct *tsk;
+	const struct cred *cred;
 	struct hlist_node deferred_work_node;
 	int deferred_work;
 	bool is_dead;
@@ -3087,7 +3091,7 @@ static void binder_transaction(struct binder_proc *proc,
 		t->from = thread;
 	else
 		t->from = NULL;
-	t->sender_euid = task_euid(proc->tsk);
+	t->sender_euid = proc->cred->euid;
 	t->to_proc = target_proc;
 	t->to_thread = target_thread;
 	t->code = tr->code;
@@ -4703,6 +4707,7 @@ static void binder_free_proc(struct binder_proc *proc)
 	}
 	binder_alloc_deferred_release(&proc->alloc);
 	put_task_struct(proc->tsk);
+	put_cred(proc->cred);
 	binder_stats_deleted(BINDER_STAT_PROC);
 	kfree(proc);
 }
@@ -5220,6 +5225,7 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	spin_lock_init(&proc->outer_lock);
 	get_task_struct(current->group_leader);
 	proc->tsk = current->group_leader;
+	proc->cred = get_cred(filp->f_cred);
 	INIT_LIST_HEAD(&proc->todo);
 	proc->default_priority = task_nice(current);
 	/* binderfs stashes devices in i_private */
-- 
GitLab


From 0d9f4ae7cd6f5283dd0e343265268c695ef592b0 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Wed, 10 Nov 2021 15:00:35 -0800
Subject: [PATCH 0933/4878] binder: use cred instead of task for selinux checks

commit 52f88693378a58094c538662ba652aff0253c4fe upstream.

Since binder was integrated with selinux, it has passed
'struct task_struct' associated with the binder_proc
to represent the source and target of transactions.
The conversion of task to SID was then done in the hook
implementations. It turns out that there are race conditions
which can result in an incorrect security context being used.

Fix by using the 'struct cred' saved during binder_open and pass
it to the selinux subsystem.

Cc: stable@vger.kernel.org # 5.14 (need backport for earlier stables)
Fixes: 79af73079d75 ("Add security hooks to binder and implement the hooks for SELinux.")
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder.c      | 12 ++++++------
 include/linux/lsm_hook_defs.h | 14 +++++++-------
 include/linux/lsm_hooks.h     | 14 +++++++-------
 include/linux/security.h      | 28 +++++++++++++--------------
 security/security.c           | 14 +++++++-------
 security/selinux/hooks.c      | 36 +++++++++++++++--------------------
 6 files changed, 56 insertions(+), 62 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index b45d33c5bcdbf..5a9df224b001d 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2443,7 +2443,7 @@ static int binder_translate_binder(struct flat_binder_object *fp,
 		ret = -EINVAL;
 		goto done;
 	}
-	if (security_binder_transfer_binder(proc->tsk, target_proc->tsk)) {
+	if (security_binder_transfer_binder(proc->cred, target_proc->cred)) {
 		ret = -EPERM;
 		goto done;
 	}
@@ -2489,7 +2489,7 @@ static int binder_translate_handle(struct flat_binder_object *fp,
 				  proc->pid, thread->pid, fp->handle);
 		return -EINVAL;
 	}
-	if (security_binder_transfer_binder(proc->tsk, target_proc->tsk)) {
+	if (security_binder_transfer_binder(proc->cred, target_proc->cred)) {
 		ret = -EPERM;
 		goto done;
 	}
@@ -2577,7 +2577,7 @@ static int binder_translate_fd(u32 fd, binder_size_t fd_offset,
 		ret = -EBADF;
 		goto err_fget;
 	}
-	ret = security_binder_transfer_file(proc->tsk, target_proc->tsk, file);
+	ret = security_binder_transfer_file(proc->cred, target_proc->cred, file);
 	if (ret < 0) {
 		ret = -EPERM;
 		goto err_security;
@@ -2975,8 +2975,8 @@ static void binder_transaction(struct binder_proc *proc,
 			return_error_line = __LINE__;
 			goto err_invalid_target_handle;
 		}
-		if (security_binder_transaction(proc->tsk,
-						target_proc->tsk) < 0) {
+		if (security_binder_transaction(proc->cred,
+						target_proc->cred) < 0) {
 			return_error = BR_FAILED_REPLY;
 			return_error_param = -EPERM;
 			return_error_line = __LINE__;
@@ -4918,7 +4918,7 @@ static int binder_ioctl_set_ctx_mgr(struct file *filp,
 		ret = -EBUSY;
 		goto out;
 	}
-	ret = security_binder_set_context_mgr(proc->tsk);
+	ret = security_binder_set_context_mgr(proc->cred);
 	if (ret < 0)
 		goto out;
 	if (uid_valid(context->binder_context_mgr_uid)) {
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 32a940117e7af..a6a3d4ddfc2df 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -26,13 +26,13 @@
  *   #undef LSM_HOOK
  * };
  */
-LSM_HOOK(int, 0, binder_set_context_mgr, struct task_struct *mgr)
-LSM_HOOK(int, 0, binder_transaction, struct task_struct *from,
-	 struct task_struct *to)
-LSM_HOOK(int, 0, binder_transfer_binder, struct task_struct *from,
-	 struct task_struct *to)
-LSM_HOOK(int, 0, binder_transfer_file, struct task_struct *from,
-	 struct task_struct *to, struct file *file)
+LSM_HOOK(int, 0, binder_set_context_mgr, const struct cred *mgr)
+LSM_HOOK(int, 0, binder_transaction, const struct cred *from,
+	 const struct cred *to)
+LSM_HOOK(int, 0, binder_transfer_binder, const struct cred *from,
+	 const struct cred *to)
+LSM_HOOK(int, 0, binder_transfer_file, const struct cred *from,
+	 const struct cred *to, struct file *file)
 LSM_HOOK(int, 0, ptrace_access_check, struct task_struct *child,
 	 unsigned int mode)
 LSM_HOOK(int, 0, ptrace_traceme, struct task_struct *parent)
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index c503f7ab8afb6..a8531b37e6f52 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1288,22 +1288,22 @@
  *
  * @binder_set_context_mgr:
  *	Check whether @mgr is allowed to be the binder context manager.
- *	@mgr contains the task_struct for the task being registered.
+ *	@mgr contains the struct cred for the current binder process.
  *	Return 0 if permission is granted.
  * @binder_transaction:
  *	Check whether @from is allowed to invoke a binder transaction call
  *	to @to.
- *	@from contains the task_struct for the sending task.
- *	@to contains the task_struct for the receiving task.
+ *	@from contains the struct cred for the sending process.
+ *	@to contains the struct cred for the receiving process.
  * @binder_transfer_binder:
  *	Check whether @from is allowed to transfer a binder reference to @to.
- *	@from contains the task_struct for the sending task.
- *	@to contains the task_struct for the receiving task.
+ *	@from contains the struct cred for the sending process.
+ *	@to contains the struct cred for the receiving process.
  * @binder_transfer_file:
  *	Check whether @from is allowed to transfer @file to @to.
- *	@from contains the task_struct for the sending task.
+ *	@from contains the struct cred for the sending process.
  *	@file contains the struct file being transferred.
- *	@to contains the task_struct for the receiving task.
+ *	@to contains the struct cred for the receiving process.
  *
  * @ptrace_access_check:
  *	Check permission before allowing the current process to trace the
diff --git a/include/linux/security.h b/include/linux/security.h
index 7ef74d01b8e74..e67cc8c408650 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -254,13 +254,13 @@ extern int security_init(void);
 extern int early_security_init(void);
 
 /* Security operations */
-int security_binder_set_context_mgr(struct task_struct *mgr);
-int security_binder_transaction(struct task_struct *from,
-				struct task_struct *to);
-int security_binder_transfer_binder(struct task_struct *from,
-				    struct task_struct *to);
-int security_binder_transfer_file(struct task_struct *from,
-				  struct task_struct *to, struct file *file);
+int security_binder_set_context_mgr(const struct cred *mgr);
+int security_binder_transaction(const struct cred *from,
+				const struct cred *to);
+int security_binder_transfer_binder(const struct cred *from,
+				    const struct cred *to);
+int security_binder_transfer_file(const struct cred *from,
+				  const struct cred *to, struct file *file);
 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
 int security_ptrace_traceme(struct task_struct *parent);
 int security_capget(struct task_struct *target,
@@ -493,25 +493,25 @@ static inline int early_security_init(void)
 	return 0;
 }
 
-static inline int security_binder_set_context_mgr(struct task_struct *mgr)
+static inline int security_binder_set_context_mgr(const struct cred *mgr)
 {
 	return 0;
 }
 
-static inline int security_binder_transaction(struct task_struct *from,
-					      struct task_struct *to)
+static inline int security_binder_transaction(const struct cred *from,
+					      const struct cred *to)
 {
 	return 0;
 }
 
-static inline int security_binder_transfer_binder(struct task_struct *from,
-						  struct task_struct *to)
+static inline int security_binder_transfer_binder(const struct cred *from,
+						  const struct cred *to)
 {
 	return 0;
 }
 
-static inline int security_binder_transfer_file(struct task_struct *from,
-						struct task_struct *to,
+static inline int security_binder_transfer_file(const struct cred *from,
+						const struct cred *to,
 						struct file *file)
 {
 	return 0;
diff --git a/security/security.c b/security/security.c
index 1c696bce8e1c9..a864ff824dd3b 100644
--- a/security/security.c
+++ b/security/security.c
@@ -723,25 +723,25 @@ static void __init lsm_early_task(struct task_struct *task)
 
 /* Security operations */
 
-int security_binder_set_context_mgr(struct task_struct *mgr)
+int security_binder_set_context_mgr(const struct cred *mgr)
 {
 	return call_int_hook(binder_set_context_mgr, 0, mgr);
 }
 
-int security_binder_transaction(struct task_struct *from,
-				struct task_struct *to)
+int security_binder_transaction(const struct cred *from,
+				const struct cred *to)
 {
 	return call_int_hook(binder_transaction, 0, from, to);
 }
 
-int security_binder_transfer_binder(struct task_struct *from,
-				    struct task_struct *to)
+int security_binder_transfer_binder(const struct cred *from,
+				    const struct cred *to)
 {
 	return call_int_hook(binder_transfer_binder, 0, from, to);
 }
 
-int security_binder_transfer_file(struct task_struct *from,
-				  struct task_struct *to, struct file *file)
+int security_binder_transfer_file(const struct cred *from,
+				  const struct cred *to, struct file *file)
 {
 	return call_int_hook(binder_transfer_file, 0, from, to, file);
 }
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 227eb89679637..f32026bc96b42 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2004,22 +2004,19 @@ static inline u32 open_file_to_av(struct file *file)
 
 /* Hook functions begin here. */
 
-static int selinux_binder_set_context_mgr(struct task_struct *mgr)
+static int selinux_binder_set_context_mgr(const struct cred *mgr)
 {
-	u32 mysid = current_sid();
-	u32 mgrsid = task_sid(mgr);
-
 	return avc_has_perm(&selinux_state,
-			    mysid, mgrsid, SECCLASS_BINDER,
+			    current_sid(), cred_sid(mgr), SECCLASS_BINDER,
 			    BINDER__SET_CONTEXT_MGR, NULL);
 }
 
-static int selinux_binder_transaction(struct task_struct *from,
-				      struct task_struct *to)
+static int selinux_binder_transaction(const struct cred *from,
+				      const struct cred *to)
 {
 	u32 mysid = current_sid();
-	u32 fromsid = task_sid(from);
-	u32 tosid = task_sid(to);
+	u32 fromsid = cred_sid(from);
+	u32 tosid = cred_sid(to);
 	int rc;
 
 	if (mysid != fromsid) {
@@ -2030,27 +2027,24 @@ static int selinux_binder_transaction(struct task_struct *from,
 			return rc;
 	}
 
-	return avc_has_perm(&selinux_state,
-			    fromsid, tosid, SECCLASS_BINDER, BINDER__CALL,
-			    NULL);
+	return avc_has_perm(&selinux_state, fromsid, tosid,
+			    SECCLASS_BINDER, BINDER__CALL, NULL);
 }
 
-static int selinux_binder_transfer_binder(struct task_struct *from,
-					  struct task_struct *to)
+static int selinux_binder_transfer_binder(const struct cred *from,
+					  const struct cred *to)
 {
-	u32 fromsid = task_sid(from);
-	u32 tosid = task_sid(to);
-
 	return avc_has_perm(&selinux_state,
-			    fromsid, tosid, SECCLASS_BINDER, BINDER__TRANSFER,
+			    cred_sid(from), cred_sid(to),
+			    SECCLASS_BINDER, BINDER__TRANSFER,
 			    NULL);
 }
 
-static int selinux_binder_transfer_file(struct task_struct *from,
-					struct task_struct *to,
+static int selinux_binder_transfer_file(const struct cred *from,
+					const struct cred *to,
 					struct file *file)
 {
-	u32 sid = task_sid(to);
+	u32 sid = cred_sid(to);
 	struct file_security_struct *fsec = selinux_file(file);
 	struct dentry *dentry = file->f_path.dentry;
 	struct inode_security_struct *isec;
-- 
GitLab


From afbec52fbce006a775edb21f87ccae713bc0e7d6 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Wed, 10 Nov 2021 15:00:36 -0800
Subject: [PATCH 0934/4878] binder: use cred instead of task for getsecid

commit 4d5b5539742d2554591751b4248b0204d20dcc9d upstream.

Use the 'struct cred' saved at binder_open() to lookup
the security ID via security_cred_getsecid(). This
ensures that the security context that opened binder
is the one used to generate the secctx.

Cc: stable@vger.kernel.org # 5.4+
Fixes: ec74136ded79 ("binder: create node flag to request sender's security context")
Signed-off-by: Todd Kjos <tkjos@google.com>
Suggested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder.c | 2 +-
 include/linux/security.h | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 5a9df224b001d..8f14ad7ab5bd8 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -3102,7 +3102,7 @@ static void binder_transaction(struct binder_proc *proc,
 		u32 secid;
 		size_t added_size;
 
-		security_task_getsecid(proc->tsk, &secid);
+		security_cred_getsecid(proc->cred, &secid);
 		ret = security_secid_to_secctx(secid, &secctx, &secctx_sz);
 		if (ret) {
 			return_error = BR_FAILED_REPLY;
diff --git a/include/linux/security.h b/include/linux/security.h
index e67cc8c408650..35355429648e3 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1003,6 +1003,11 @@ static inline void security_transfer_creds(struct cred *new,
 {
 }
 
+static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
+{
+	*secid = 0;
+}
+
 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
 {
 	return 0;
-- 
GitLab


From d1eb42de7cf9511702df7751626c21a87f9d0ef9 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 9 Nov 2021 22:58:01 -0800
Subject: [PATCH 0935/4878] Input: iforce - fix control-message timeout

commit 744d0090a5f6dfa4c81b53402ccdf08313100429 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 487358627825 ("Input: iforce - use DMA-safe buffer when getting IDs from USB")
Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: stable@vger.kernel.org      # 5.3
Link: https://lore.kernel.org/r/20211025115501.5190-1-johan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/joystick/iforce/iforce-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
index 6c554c11a7ac3..ea58805c480fa 100644
--- a/drivers/input/joystick/iforce/iforce-usb.c
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -92,7 +92,7 @@ static int iforce_usb_get_id(struct iforce *iforce, u8 id,
 				 id,
 				 USB_TYPE_VENDOR | USB_DIR_IN |
 					USB_RECIP_INTERFACE,
-				 0, 0, buf, IFORCE_MAX_LENGTH, HZ);
+				 0, 0, buf, IFORCE_MAX_LENGTH, 1000);
 	if (status < 0) {
 		dev_err(&iforce_usb->intf->dev,
 			"usb_submit_urb failed: %d\n", status);
-- 
GitLab


From 8c341d11c8bd366791cacfbf96608de905607fde Mon Sep 17 00:00:00 2001
From: Phoenix Huang <phoenix@emc.com.tw>
Date: Sun, 7 Nov 2021 22:00:03 -0800
Subject: [PATCH 0936/4878] Input: elantench - fix misreporting trackpoint
 coordinates

commit be896bd3b72b44126c55768f14c22a8729b0992e upstream.

Some firmwares occasionally report bogus data from trackpoint, with X or Y
displacement being too large (outside of [-127, 127] range). Let's drop such
packets so that we do not generate jumps.

Signed-off-by: Phoenix Huang <phoenix@emc.com.tw>
Tested-by: Yufei Du <yufeidu@cs.unc.edu>
Link: https://lore.kernel.org/r/20210729010940.5752-1-phoenix@emc.com.tw
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/mouse/elantech.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index e0e53a9a816fc..4357d30c15c56 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -517,6 +517,19 @@ static void elantech_report_trackpoint(struct psmouse *psmouse,
 	case 0x16008020U:
 	case 0x26800010U:
 	case 0x36808000U:
+
+		/*
+		 * This firmware misreport coordinates for trackpoint
+		 * occasionally. Discard packets outside of [-127, 127] range
+		 * to prevent cursor jumps.
+		 */
+		if (packet[4] == 0x80 || packet[5] == 0x80 ||
+		    packet[1] >> 7 == packet[4] >> 7 ||
+		    packet[2] >> 7 == packet[5] >> 7) {
+			elantech_debug("discarding packet [%6ph]\n", packet);
+			break;
+
+		}
 		x = packet[4] - (int)((packet[1]^0x80) << 1);
 		y = (int)((packet[2]^0x80) << 1) - packet[5];
 
-- 
GitLab


From ab0a06769e69f8ecdf291ee8028a00e7b196aeff Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 3 Nov 2021 08:00:19 +0100
Subject: [PATCH 0937/4878] Input: i8042 - Add quirk for Fujitsu Lifebook T725

commit 16e28abb7290c4ca3b3a0f333ba067f34bb18c86 upstream.

Fujitsu Lifebook T725 laptop requires, like a few other similar
models, the nomux and notimeout options to probe the touchpad
properly.  This patch adds the corresponding quirk entries.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1191980
Tested-by: Neal Gompa <ngompa13@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211103070019.13374-1-tiwai@suse.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/serio/i8042-x86ia64io.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index a5a0035536462..aedd055410443 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -272,6 +272,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
 		},
 	},
+	{
+		/* Fujitsu Lifebook T725 laptop */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T725"),
+		},
+	},
 	{
 		/* Fujitsu Lifebook U745 */
 		.matches = {
@@ -840,6 +847,13 @@ static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
 		},
 	},
+	{
+		/* Fujitsu Lifebook T725 laptop */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T725"),
+		},
+	},
 	{
 		/* Fujitsu U574 laptop */
 		/* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
-- 
GitLab


From 39264eaa6d44df00e53d2f9b503c6439b7ec270c Mon Sep 17 00:00:00 2001
From: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Date: Thu, 4 Nov 2021 17:31:58 +0900
Subject: [PATCH 0938/4878] libata: fix read log timeout value

commit 68dbbe7d5b4fde736d104cbbc9a2fce875562012 upstream.

Some ATA drives are very slow to respond to READ_LOG_EXT and
READ_LOG_DMA_EXT commands issued from ata_dev_configure() when the
device is revalidated right after resuming a system or inserting the
ATA adapter driver (e.g. ahci). The default 5s timeout
(ATA_EH_CMD_DFL_TIMEOUT) used for these commands is too short, causing
errors during the device configuration. Ex:

...
ata9: SATA max UDMA/133 abar m524288@0x9d200000 port 0x9d200400 irq 209
ata9: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
ata9.00: ATA-9: XXX  XXXXXXXXXXXXXXX, XXXXXXXX, max UDMA/133
ata9.00: qc timeout (cmd 0x2f)
ata9.00: Read log page 0x00 failed, Emask 0x4
ata9.00: Read log page 0x00 failed, Emask 0x40
ata9.00: NCQ Send/Recv Log not supported
ata9.00: Read log page 0x08 failed, Emask 0x40
ata9.00: 27344764928 sectors, multi 16: LBA48 NCQ (depth 32), AA
ata9.00: Read log page 0x00 failed, Emask 0x40
ata9.00: ATA Identify Device Log not supported
ata9.00: failed to set xfermode (err_mask=0x40)
ata9: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
ata9.00: configured for UDMA/133
...

The timeout error causes a soft reset of the drive link, followed in
most cases by a successful revalidation as that give enough time to the
drive to become fully ready to quickly process the read log commands.
However, in some cases, this also fails resulting in the device being
dropped.

Fix this by using adding the ata_eh_revalidate_timeouts entries for the
READ_LOG_EXT and READ_LOG_DMA_EXT commands. This defines a timeout
increased to 15s, retriable one time.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libata-eh.c | 8 ++++++++
 include/linux/libata.h  | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index b6f92050e60cb..018ed8736a64d 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -93,6 +93,12 @@ static const unsigned long ata_eh_identify_timeouts[] = {
 	ULONG_MAX,
 };
 
+static const unsigned long ata_eh_revalidate_timeouts[] = {
+	15000,	/* Some drives are slow to read log pages when waking-up */
+	15000,  /* combined time till here is enough even for media access */
+	ULONG_MAX,
+};
+
 static const unsigned long ata_eh_flush_timeouts[] = {
 	15000,	/* be generous with flush */
 	15000,  /* ditto */
@@ -129,6 +135,8 @@ static const struct ata_eh_cmd_timeout_ent
 ata_eh_cmd_timeout_table[ATA_EH_CMD_TIMEOUT_TABLE_SIZE] = {
 	{ .commands = CMDS(ATA_CMD_ID_ATA, ATA_CMD_ID_ATAPI),
 	  .timeouts = ata_eh_identify_timeouts, },
+	{ .commands = CMDS(ATA_CMD_READ_LOG_EXT, ATA_CMD_READ_LOG_DMA_EXT),
+	  .timeouts = ata_eh_revalidate_timeouts, },
 	{ .commands = CMDS(ATA_CMD_READ_NATIVE_MAX, ATA_CMD_READ_NATIVE_MAX_EXT),
 	  .timeouts = ata_eh_other_timeouts, },
 	{ .commands = CMDS(ATA_CMD_SET_MAX, ATA_CMD_SET_MAX_EXT),
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 57dffa0d58702..d3600fc7f7c4d 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -390,7 +390,7 @@ enum {
 	/* This should match the actual table size of
 	 * ata_eh_cmd_timeout_table in libata-eh.c.
 	 */
-	ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 6,
+	ATA_EH_CMD_TIMEOUT_TABLE_SIZE = 7,
 
 	/* Horkage types. May be set by libata or controller on drives
 	   (some horkage may be drive/controller pair dependent */
-- 
GitLab


From 9d623bf1736b71563c039c67636398c7c6086445 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 5 Nov 2021 13:34:55 -0700
Subject: [PATCH 0939/4878] ocfs2: fix data corruption on truncate

commit 839b63860eb3835da165642923120d305925561d upstream.

Patch series "ocfs2: Truncate data corruption fix".

As further testing has shown, commit 5314454ea3f ("ocfs2: fix data
corruption after conversion from inline format") didn't fix all the data
corruption issues the customer started observing after 6dbf7bb55598
("fs: Don't invalidate page buffers in block_write_full_page()") This
time I have tracked them down to two bugs in ocfs2 truncation code.

One bug (truncating page cache before clearing tail cluster and setting
i_size) could cause data corruption even before 6dbf7bb55598, but before
that commit it needed a race with page fault, after 6dbf7bb55598 it
started to be pretty deterministic.

Another bug (zeroing pages beyond old i_size) used to be harmless
inefficiency before commit 6dbf7bb55598.  But after commit 6dbf7bb55598
in combination with the first bug it resulted in deterministic data
corruption.

Although fixing only the first problem is needed to stop data
corruption, I've fixed both issues to make the code more robust.

This patch (of 2):

ocfs2_truncate_file() did unmap invalidate page cache pages before
zeroing partial tail cluster and setting i_size.  Thus some pages could
be left (and likely have left if the cluster zeroing happened) in the
page cache beyond i_size after truncate finished letting user possibly
see stale data once the file was extended again.  Also the tail cluster
zeroing was not guaranteed to finish before truncate finished causing
possible stale data exposure.  The problem started to be particularly
easy to hit after commit 6dbf7bb55598 "fs: Don't invalidate page buffers
in block_write_full_page()" stopped invalidation of pages beyond i_size
from page writeback path.

Fix these problems by unmapping and invalidating pages in the page cache
after the i_size is reduced and tail cluster is zeroed out.

Link: https://lkml.kernel.org/r/20211025150008.29002-1-jack@suse.cz
Link: https://lkml.kernel.org/r/20211025151332.11301-1-jack@suse.cz
Fixes: ccd979bdbce9 ("[PATCH] OCFS2: The Second Oracle Cluster Filesystem")
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ocfs2/file.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 919e552abf637..1470b49adb2db 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -478,10 +478,11 @@ int ocfs2_truncate_file(struct inode *inode,
 	 * greater than page size, so we have to truncate them
 	 * anyway.
 	 */
-	unmap_mapping_range(inode->i_mapping, new_i_size + PAGE_SIZE - 1, 0, 1);
-	truncate_inode_pages(inode->i_mapping, new_i_size);
 
 	if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
+		unmap_mapping_range(inode->i_mapping,
+				    new_i_size + PAGE_SIZE - 1, 0, 1);
+		truncate_inode_pages(inode->i_mapping, new_i_size);
 		status = ocfs2_truncate_inline(inode, di_bh, new_i_size,
 					       i_size_read(inode), 1);
 		if (status)
@@ -500,6 +501,9 @@ int ocfs2_truncate_file(struct inode *inode,
 		goto bail_unlock_sem;
 	}
 
+	unmap_mapping_range(inode->i_mapping, new_i_size + PAGE_SIZE - 1, 0, 1);
+	truncate_inode_pages(inode->i_mapping, new_i_size);
+
 	status = ocfs2_commit_truncate(osb, inode, di_bh);
 	if (status < 0) {
 		mlog_errno(status);
-- 
GitLab


From 06cc8187dbb6218b746a2976c05cb8934a1ff728 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 3 Nov 2021 10:06:59 -0700
Subject: [PATCH 0940/4878] scsi: core: Remove command size deduction from
 scsi_setup_scsi_cmnd()

commit 703535e6ae1e94c89a9c1396b4c7b6b41160ef0c upstream.

No need to deduce command size in scsi_setup_scsi_cmnd() anymore as
appropriate checks have been added to scsi_fill_sghdr_rq() function and the
cmd_len should never be zero here.  The code to do that wasn't correct
anyway, as it used uninitialized cmd->cmnd, which caused a null-ptr-deref
if the command size was zero as in the trace below. Fix this by removing
the unneeded code.

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 1822 Comm: repro Not tainted 5.15.0 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014
Call Trace:
 blk_mq_dispatch_rq_list+0x7c7/0x12d0
 __blk_mq_sched_dispatch_requests+0x244/0x380
 blk_mq_sched_dispatch_requests+0xf0/0x160
 __blk_mq_run_hw_queue+0xe8/0x160
 __blk_mq_delay_run_hw_queue+0x252/0x5d0
 blk_mq_run_hw_queue+0x1dd/0x3b0
 blk_mq_sched_insert_request+0x1ff/0x3e0
 blk_execute_rq_nowait+0x173/0x1e0
 blk_execute_rq+0x15c/0x540
 sg_io+0x97c/0x1370
 scsi_ioctl+0xe16/0x28e0
 sd_ioctl+0x134/0x170
 blkdev_ioctl+0x362/0x6e0
 block_ioctl+0xb0/0xf0
 vfs_ioctl+0xa7/0xf0
 do_syscall_64+0x3d/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
---[ end trace 8b086e334adef6d2 ]---
Kernel panic - not syncing: Fatal exception

Link: https://lore.kernel.org/r/20211103170659.22151-2-tadeusz.struk@linaro.org
Fixes: 2ceda20f0a99 ("scsi: core: Move command size detection out of the fast path")
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <stable@vger.kernel.org> # 5.15, 5.14, 5.10
Reported-by: syzbot+5516b30f5401d4dcbcae@syzkaller.appspotmail.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi_lib.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index d89db29fa829c..6f3d29d16d1f4 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1193,8 +1193,6 @@ static blk_status_t scsi_setup_scsi_cmnd(struct scsi_device *sdev,
 	}
 
 	cmd->cmd_len = scsi_req(req)->cmd_len;
-	if (cmd->cmd_len == 0)
-		cmd->cmd_len = scsi_command_size(cmd->cmnd);
 	cmd->cmnd = scsi_req(req)->cmd;
 	cmd->transfersize = blk_rq_bytes(req);
 	cmd->allowed = scsi_req(req)->retries;
-- 
GitLab


From 37b15db1d87c8b5d90b2a0ad67eaa8510eb69d02 Mon Sep 17 00:00:00 2001
From: Arun Easi <aeasi@marvell.com>
Date: Wed, 8 Sep 2021 09:46:18 -0700
Subject: [PATCH 0941/4878] scsi: qla2xxx: Fix kernel crash when accessing
 port_speed sysfs file

commit 3ef68d4f0c9e7cb589ae8b70f07d77f528105331 upstream.

Kernel crashes when accessing port_speed sysfs file.  The issue happens on
a CNA when the local array was accessed beyond bounds. Fix this by changing
the lookup.

BUG: unable to handle kernel paging request at 0000000000004000
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
CPU: 15 PID: 455213 Comm: sosreport Kdump: loaded Not tainted
4.18.0-305.7.1.el8_4.x86_64 #1
RIP: 0010:string_nocheck+0x12/0x70
Code: 00 00 4c 89 e2 be 20 00 00 00 48 89 ef e8 86 9a 00 00 4c 01
e3 eb 81 90 49 89 f2 48 89 ce 48 89 f8 48 c1 fe 30 66 85 f6 74 4f <44> 0f b6 0a
45 84 c9 74 46 83 ee 01 41 b8 01 00 00 00 48 8d 7c 37
RSP: 0018:ffffb5141c1afcf0 EFLAGS: 00010286
RAX: ffff8bf4009f8000 RBX: ffff8bf4009f9000 RCX: ffff0a00ffffff04
RDX: 0000000000004000 RSI: ffffffffffffffff RDI: ffff8bf4009f8000
RBP: 0000000000004000 R08: 0000000000000001 R09: ffffb5141c1afb84
R10: ffff8bf4009f9000 R11: ffffb5141c1afce6 R12: ffff0a00ffffff04
R13: ffffffffc08e21aa R14: 0000000000001000 R15: ffffffffc08e21aa
FS:  00007fc4ebfff700(0000) GS:ffff8c717f7c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000004000 CR3: 000000edfdee6006 CR4: 00000000001706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
  string+0x40/0x50
  vsnprintf+0x33c/0x520
  scnprintf+0x4d/0x90
  qla2x00_port_speed_show+0xb5/0x100 [qla2xxx]
  dev_attr_show+0x1c/0x40
  sysfs_kf_seq_show+0x9b/0x100
  seq_read+0x153/0x410
  vfs_read+0x91/0x140
  ksys_read+0x4f/0xb0
  do_syscall_64+0x5b/0x1a0
  entry_SYSCALL_64_after_hwframe+0x65/0xca

Link: https://lore.kernel.org/r/20210908164622.19240-7-njavali@marvell.com
Fixes: 4910b524ac9e ("scsi: qla2xxx: Add support for setting port speed")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/qla2xxx/qla_attr.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 6a2c4a6fcded8..e40a37236aa10 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1862,6 +1862,18 @@ qla2x00_port_speed_store(struct device *dev, struct device_attribute *attr,
 	return strlen(buf);
 }
 
+static const struct {
+	u16 rate;
+	char *str;
+} port_speed_str[] = {
+	{ PORT_SPEED_4GB, "4" },
+	{ PORT_SPEED_8GB, "8" },
+	{ PORT_SPEED_16GB, "16" },
+	{ PORT_SPEED_32GB, "32" },
+	{ PORT_SPEED_64GB, "64" },
+	{ PORT_SPEED_10GB, "10" },
+};
+
 static ssize_t
 qla2x00_port_speed_show(struct device *dev, struct device_attribute *attr,
     char *buf)
@@ -1869,7 +1881,8 @@ qla2x00_port_speed_show(struct device *dev, struct device_attribute *attr,
 	struct scsi_qla_host *vha = shost_priv(dev_to_shost(dev));
 	struct qla_hw_data *ha = vha->hw;
 	ssize_t rval;
-	char *spd[7] = {"0", "0", "0", "4", "8", "16", "32"};
+	u16 i;
+	char *speed = "Unknown";
 
 	rval = qla2x00_get_data_rate(vha);
 	if (rval != QLA_SUCCESS) {
@@ -1878,7 +1891,14 @@ qla2x00_port_speed_show(struct device *dev, struct device_attribute *attr,
 		return -EINVAL;
 	}
 
-	return scnprintf(buf, PAGE_SIZE, "%s\n", spd[ha->link_data_rate]);
+	for (i = 0; i < ARRAY_SIZE(port_speed_str); i++) {
+		if (port_speed_str[i].rate != ha->link_data_rate)
+			continue;
+		speed = port_speed_str[i].str;
+		break;
+	}
+
+	return scnprintf(buf, PAGE_SIZE, "%s\n", speed);
 }
 
 /* ----- */
-- 
GitLab


From c1d31266de3ddd5c5bc54f8e917c4f20453156ac Mon Sep 17 00:00:00 2001
From: Quinn Tran <qutran@marvell.com>
Date: Wed, 8 Sep 2021 09:46:21 -0700
Subject: [PATCH 0942/4878] scsi: qla2xxx: Fix use after free in eh_abort path

commit 3d33b303d4f3b74a71bede5639ebba3cfd2a2b4d upstream.

In eh_abort path driver prematurely exits the call to upper layer. Check
whether command is aborted / completed by firmware before exiting the call.

9 [ffff8b1ebf803c00] page_fault at ffffffffb0389778
  [exception RIP: qla2x00_status_entry+0x48d]
  RIP: ffffffffc04fa62d  RSP: ffff8b1ebf803cb0  RFLAGS: 00010082
  RAX: 00000000ffffffff  RBX: 00000000000e0000  RCX: 0000000000000000
  RDX: 0000000000000000  RSI: 00000000000013d8  RDI: fffff3253db78440
  RBP: ffff8b1ebf803dd0   R8: ffff8b1ebcd9b0c0   R9: 0000000000000000
  R10: ffff8b1e38a30808  R11: 0000000000001000  R12: 00000000000003e9
  R13: 0000000000000000  R14: ffff8b1ebcd9d740  R15: 0000000000000028
  ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
10 [ffff8b1ebf803cb0] enqueue_entity at ffffffffafce708f
11 [ffff8b1ebf803d00] enqueue_task_fair at ffffffffafce7b88
12 [ffff8b1ebf803dd8] qla24xx_process_response_queue at ffffffffc04fc9a6
[qla2xxx]
13 [ffff8b1ebf803e78] qla24xx_msix_rsp_q at ffffffffc04ff01b [qla2xxx]
14 [ffff8b1ebf803eb0] __handle_irq_event_percpu at ffffffffafd50714

Link: https://lore.kernel.org/r/20210908164622.19240-10-njavali@marvell.com
Fixes: f45bca8c5052 ("scsi: qla2xxx: Fix double scsi_done for abort path")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: David Jeffery <djeffery@redhat.com>
Co-developed-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/qla2xxx/qla_os.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 4af794c46d175..e075f855f298e 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1254,6 +1254,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	uint32_t ratov_j;
 	struct qla_qpair *qpair;
 	unsigned long flags;
+	int fast_fail_status = SUCCESS;
 
 	if (qla2x00_isp_reg_stat(ha)) {
 		ql_log(ql_log_info, vha, 0x8042,
@@ -1261,15 +1262,16 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 		return FAILED;
 	}
 
+	/* Save any FAST_IO_FAIL value to return later if abort succeeds */
 	ret = fc_block_scsi_eh(cmd);
 	if (ret != 0)
-		return ret;
+		fast_fail_status = ret;
 
 	sp = scsi_cmd_priv(cmd);
 	qpair = sp->qpair;
 
 	if ((sp->fcport && sp->fcport->deleted) || !qpair)
-		return SUCCESS;
+		return fast_fail_status != SUCCESS ? fast_fail_status : FAILED;
 
 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
 	sp->comp = &comp;
@@ -1304,7 +1306,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 			    __func__, ha->r_a_tov/10);
 			ret = FAILED;
 		} else {
-			ret = SUCCESS;
+			ret = fast_fail_status;
 		}
 		break;
 	default:
-- 
GitLab


From 7b24b669d3f99ec25e2c74de2c05156d9812c662 Mon Sep 17 00:00:00 2001
From: Derong Liu <derong.liu@mediatek.com>
Date: Fri, 27 Aug 2021 15:15:37 +0800
Subject: [PATCH 0943/4878] mmc: mtk-sd: Add wait dma stop done flow

commit 43e5fee317f4b0a48992b8b07935b1a3ac20ce84 upstream.

We found this issue on a 5G platform, during CMDQ error handling, if DMA
status is active when it call msdc_reset_hw(), it means mmc host hw reset
and DMA transfer will be parallel, mmc host may access sram region
unexpectedly. According to the programming guide of mtk-sd host, it needs
to wait for dma stop done after set dma stop.

This change should be applied to all SoCs.

Signed-off-by: Derong Liu <derong.liu@mediatek.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210827071537.1034-1-derong.liu@mediatek.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/mtk-sd.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index fb8b9475b1d01..f5c965da95013 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -8,6 +8,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
+#include <linux/iopoll.h>
 #include <linux/ioport.h>
 #include <linux/irq.h>
 #include <linux/of_address.h>
@@ -2285,6 +2286,7 @@ static void msdc_cqe_enable(struct mmc_host *mmc)
 static void msdc_cqe_disable(struct mmc_host *mmc, bool recovery)
 {
 	struct msdc_host *host = mmc_priv(mmc);
+	unsigned int val = 0;
 
 	/* disable cmdq irq */
 	sdr_clr_bits(host->base + MSDC_INTEN, MSDC_INT_CMDQ);
@@ -2294,6 +2296,9 @@ static void msdc_cqe_disable(struct mmc_host *mmc, bool recovery)
 	if (recovery) {
 		sdr_set_field(host->base + MSDC_DMA_CTRL,
 			      MSDC_DMA_CTRL_STOP, 1);
+		if (WARN_ON(readl_poll_timeout(host->base + MSDC_DMA_CFG, val,
+			!(val & MSDC_DMA_CFG_STS), 1, 3000)))
+			return;
 		msdc_reset_hw(host);
 	}
 }
-- 
GitLab


From 823b487cfbfc80f4accb8e3bad23d02745bcf6f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20L=C3=B6hle?= <CLoehle@hyperstone.com>
Date: Thu, 16 Sep 2021 05:59:19 +0000
Subject: [PATCH 0944/4878] mmc: dw_mmc: Dont wait for DRTO on Write RSP error

commit 43592c8736e84025d7a45e61a46c3fa40536a364 upstream.

Only wait for DRTO on reads, otherwise the driver hangs.

The driver prevents sending CMD12 on response errors like CRCs. According
to the comment this is because some cards have problems with this during
the UHS tuning sequence. Unfortunately this workaround currently also
applies for any command with data. On reads this will set the drto timer,
which then triggers after a while. On writes this will not set any timer
and the tasklet will not be scheduled again.

I cannot test for the UHS workarounds need, but even if so, it should at
most apply to reads. I have observed many hangs when CMD25 response
contained a CRC error. This patch fixes this without touching the actual
UHS tuning workaround.

Signed-off-by: Christian Loehle <cloehle@hyperstone.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/af8f8b8674ba4fcc9a781019e4aeb72c@hyperstone.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/dw_mmc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 7f90326b1be50..a6170f80ba64d 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2014,7 +2014,8 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				 * delayed. Allowing the transfer to take place
 				 * avoids races and keeps things simple.
 				 */
-				if (err != -ETIMEDOUT) {
+				if (err != -ETIMEDOUT &&
+				    host->dir_status == DW_MCI_RECV_STATUS) {
 					state = STATE_SENDING_DATA;
 					continue;
 				}
-- 
GitLab


From 284ad310542ffb4e5c2acf11d8a6420b5b7b9cea Mon Sep 17 00:00:00 2001
From: Sungjong Seo <sj1557.seo@samsung.com>
Date: Tue, 19 Oct 2021 15:14:21 +0900
Subject: [PATCH 0945/4878] exfat: fix incorrect loading of i_blocks for large
 files

commit 0c336d6e33f4bedc443404c89f43c91c8bd9ee11 upstream.

When calculating i_blocks, there was a mistake that was masked with a
32-bit variable. So i_blocks for files larger than 4 GiB had incorrect
values. Mask with a 64-bit variable instead of 32-bit one.

Fixes: 5f2aa075070c ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Reported-by: Ganapathi Kamath <hgkamath@hotmail.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/exfat/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index 730373e0965af..8b0288f70e93d 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -602,7 +602,7 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info)
 	exfat_save_attr(inode, info->attr);
 
 	inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1)) &
-		~(sbi->cluster_size - 1)) >> inode->i_blkbits;
+		~((loff_t)sbi->cluster_size - 1)) >> inode->i_blkbits;
 	inode->i_mtime = info->mtime;
 	inode->i_ctime = info->mtime;
 	ei->i_crtime = info->crtime;
-- 
GitLab


From 15b4142aea0a46fcb65dc2940909316996ee3334 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 31 Oct 2021 21:58:12 +0100
Subject: [PATCH 0946/4878] parisc: Fix set_fixmap() on PA1.x CPUs

commit 6e866a462867b60841202e900f10936a0478608c upstream.

Fix a kernel crash which happens on PA1.x CPUs while initializing the
FTRACE/KPROBE breakpoints.  The PTE table entries for the fixmap area
were not created correctly.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: ccfbc68d41c2 ("parisc: add set_fixmap()/clear_fixmap()")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/mm/fixmap.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/parisc/mm/fixmap.c b/arch/parisc/mm/fixmap.c
index 24426a7e1a5e5..cc15d737fda64 100644
--- a/arch/parisc/mm/fixmap.c
+++ b/arch/parisc/mm/fixmap.c
@@ -20,12 +20,9 @@ void notrace set_fixmap(enum fixed_addresses idx, phys_addr_t phys)
 	pte_t *pte;
 
 	if (pmd_none(*pmd))
-		pmd = pmd_alloc(NULL, pud, vaddr);
-
-	pte = pte_offset_kernel(pmd, vaddr);
-	if (pte_none(*pte))
 		pte = pte_alloc_kernel(pmd, vaddr);
 
+	pte = pte_offset_kernel(pmd, vaddr);
 	set_pte_at(&init_mm, vaddr, pte, __mk_pte(phys, PAGE_KERNEL_RWX));
 	flush_tlb_kernel_range(vaddr, vaddr + PAGE_SIZE);
 }
-- 
GitLab


From 32498b8889c8d1f9b2b67f4e43e017c63359b03e Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 5 Oct 2021 00:27:49 +0200
Subject: [PATCH 0947/4878] parisc: Fix ptrace check on syscall return

commit 8779e05ba8aaffec1829872ef9774a71f44f6580 upstream.

The TIF_XXX flags are stored in the flags field in the thread_info
struct (TI_FLAGS), not in the flags field of the task_struct structure
(TASK_FLAGS).

It seems this bug didn't generate any important side-effects, otherwise it
wouldn't have went unnoticed for 12 years (since v2.6.32).

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: ecd3d4bc06e48 ("parisc: stop using task->ptrace for {single,block}step flags")
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/entry.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 5d8123eb38ec5..9c76d50a5654b 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1848,7 +1848,7 @@ syscall_restore:
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 
 	/* Are we being ptraced? */
-	ldw	TASK_FLAGS(%r1),%r19
+	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
 	ldi	_TIF_SYSCALL_TRACE_MASK,%r2
 	and,COND(=)	%r19,%r2,%r0
 	b,n	syscall_restore_rfi
-- 
GitLab


From dd189feebaf83849d220fefa39a1c2bfdbcd4406 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 8 Sep 2021 08:33:57 +0300
Subject: [PATCH 0948/4878] tpm: Check for integer overflow in
 tpm2_map_response_body()

commit a0bcce2b2a169e10eb265c8f0ebdd5ae4c875670 upstream.

The "4 * be32_to_cpu(data->count)" multiplication can potentially
overflow which would lead to memory corruption.  Add a check for that.

Cc: stable@vger.kernel.org
Fixes: 745b361e989a ("tpm: infrastructure for TPM spaces")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/tpm/tpm2-space.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c
index 784b8b3cb903f..97e916856cf3e 100644
--- a/drivers/char/tpm/tpm2-space.c
+++ b/drivers/char/tpm/tpm2-space.c
@@ -455,6 +455,9 @@ static int tpm2_map_response_body(struct tpm_chip *chip, u32 cc, u8 *rsp,
 	if (be32_to_cpu(data->capability) != TPM2_CAP_HANDLES)
 		return 0;
 
+	if (be32_to_cpu(data->count) > (UINT_MAX - TPM_HEADER_SIZE - 9) / 4)
+		return -EFAULT;
+
 	if (len != TPM_HEADER_SIZE + 9 + 4 * be32_to_cpu(data->count))
 		return -EFAULT;
 
-- 
GitLab


From 9ac25cd2f4ec9c2feb2ab06442830bab8edf2b54 Mon Sep 17 00:00:00 2001
From: jing yangyang <cgel.zte@gmail.com>
Date: Thu, 19 Aug 2021 19:30:16 -0700
Subject: [PATCH 0949/4878] firmware/psci: fix application of sizeof to pointer

commit 2ac5fb35cd520ab1851c9a4816c523b65276052f upstream.

sizeof when applied to a pointer typed expression gives the size of
the pointer.

./drivers/firmware/psci/psci_checker.c:158:41-47: ERROR application of sizeof to pointer

This issue was detected with the help of Coccinelle.

Fixes: 7401056de5f8 ("drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests")
Cc: stable@vger.kernel.org
Reported-by: Zeal Robot <zealci@zte.com.cn>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/psci/psci_checker.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/psci/psci_checker.c b/drivers/firmware/psci/psci_checker.c
index 9a369a2eda71d..116eb465cdb42 100644
--- a/drivers/firmware/psci/psci_checker.c
+++ b/drivers/firmware/psci/psci_checker.c
@@ -155,7 +155,7 @@ static int alloc_init_cpu_groups(cpumask_var_t **pcpu_groups)
 	if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
 		return -ENOMEM;
 
-	cpu_groups = kcalloc(nb_available_cpus, sizeof(cpu_groups),
+	cpu_groups = kcalloc(nb_available_cpus, sizeof(*cpu_groups),
 			     GFP_KERNEL);
 	if (!cpu_groups) {
 		free_cpumask_var(tmp);
-- 
GitLab


From 949c5b6daa75aff41ff8861381be67337e133f5f Mon Sep 17 00:00:00 2001
From: Tang Bin <tangbin@cmss.chinamobile.com>
Date: Thu, 21 Oct 2021 09:34:22 +0800
Subject: [PATCH 0950/4878] crypto: s5p-sss - Add error handling in
 s5p_aes_probe()

commit a472cc0dde3eb057db71c80f102556eeced03805 upstream.

The function s5p_aes_probe() does not perform sufficient error
checking after executing platform_get_resource(), thus fix it.

Fixes: c2afad6c6105 ("crypto: s5p-sss - Add HASH support for Exynos")
Cc: <stable@vger.kernel.org>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/s5p-sss.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 88a6c853ffd73..c4a7a2bba0866 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -2173,6 +2173,8 @@ static int s5p_aes_probe(struct platform_device *pdev)
 
 	variant = find_s5p_sss_version(pdev);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
 
 	/*
 	 * Note: HASH and PRNG uses the same registers in secss, avoid
-- 
GitLab


From 39275d2ec6ffbdb97d462e2529b3ae9e4da4bfca Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wenst@chromium.org>
Date: Fri, 8 Oct 2021 11:04:22 +0100
Subject: [PATCH 0951/4878] media: rkvdec: Do not override sizeimage for output
 format

commit 298d8e8f7bcf023aceb60232d59b983255fec0df upstream.

The rkvdec H.264 decoder currently overrides sizeimage for the output
format. This causes issues when userspace requires and requests a larger
buffer, but ends up with one of insufficient size.

Instead, only provide a default size if none was requested. This fixes
the video_decode_accelerator_tests from Chromium failing on the first
frame due to insufficient buffer space. It also aligns the behavior
of the rkvdec driver with the Hantro and Cedrus drivers.

Fixes: cd33c830448b ("media: rkvdec: Add the rkvdec driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index 7cc3b478a5f49..5487f6d0bcb63 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -1015,8 +1015,9 @@ static int rkvdec_h264_adjust_fmt(struct rkvdec_ctx *ctx,
 	struct v4l2_pix_format_mplane *fmt = &f->fmt.pix_mp;
 
 	fmt->num_planes = 1;
-	fmt->plane_fmt[0].sizeimage = fmt->width * fmt->height *
-				      RKVDEC_H264_MAX_DEPTH_IN_BYTES;
+	if (!fmt->plane_fmt[0].sizeimage)
+		fmt->plane_fmt[0].sizeimage = fmt->width * fmt->height *
+					      RKVDEC_H264_MAX_DEPTH_IN_BYTES;
 	return 0;
 }
 
-- 
GitLab


From b2b5126a777b61bfca2472fcfc3bdc920da61844 Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Sun, 17 Oct 2021 13:01:15 +0100
Subject: [PATCH 0952/4878] media: ite-cir: IR receiver stop working after
 receive overflow

commit fdc881783099c6343921ff017450831c8766d12a upstream.

On an Intel NUC6iSYK, no IR is reported after a receive overflow.

When a receiver overflow occurs, this condition is only cleared by
reading the fifo. Make sure we read anything in the fifo.

Fixes: 28c7afb07ccf ("media: ite-cir: check for receive overflow")
Suggested-by: Bryan Pass <bryan.pass@gmail.com>
Tested-by: Bryan Pass <bryan.pass@gmail.com>
Cc: stable@vger.kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/rc/ite-cir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c
index e5c4a6941d26b..fbe794ca1eef1 100644
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -283,7 +283,7 @@ static irqreturn_t ite_cir_isr(int irq, void *data)
 	}
 
 	/* check for the receive interrupt */
-	if (iflags & ITE_IRQ_RX_FIFO) {
+	if (iflags & (ITE_IRQ_RX_FIFO | ITE_IRQ_RX_FIFO_OVERRUN)) {
 		/* read the FIFO bytes */
 		rx_bytes =
 			dev->params.get_rx_bytes(dev, rx_buf,
-- 
GitLab


From 71a137376b6496bedc3e26574ebf451bf97107a0 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wenst@chromium.org>
Date: Fri, 8 Oct 2021 11:04:23 +0100
Subject: [PATCH 0953/4878] media: rkvdec: Support dynamic resolution changes

commit 0887e9e152efbd3601d6c907e90033d25067277d upstream.

The mem-to-mem stateless decoder API specifies support for dynamic
resolution changes. In particular, the decoder should accept format
changes on the OUTPUT queue even when buffers have been allocated,
as long as it is not streaming.

Relax restrictions for S_FMT as described in the previous paragraph,
and as long as the codec format remains the same. This aligns it with
the Hantro and Cedrus decoders. This change was mostly based on commit
ae02d49493b5 ("media: hantro: Fix s_fmt for dynamic resolution changes").

Since rkvdec_s_fmt() is now just a wrapper around the output/capture
variants without any additional shared functionality, drop the wrapper
and call the respective functions directly.

Fixes: cd33c830448b ("media: rkvdec: Add the rkvdec driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/rkvdec/rkvdec.c | 40 +++++++++++++--------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec.c b/drivers/staging/media/rkvdec/rkvdec.c
index e68303e2b3907..a7788e7a9542a 100644
--- a/drivers/staging/media/rkvdec/rkvdec.c
+++ b/drivers/staging/media/rkvdec/rkvdec.c
@@ -270,31 +270,20 @@ static int rkvdec_try_output_fmt(struct file *file, void *priv,
 	return 0;
 }
 
-static int rkvdec_s_fmt(struct file *file, void *priv,
-			struct v4l2_format *f,
-			int (*try_fmt)(struct file *, void *,
-				       struct v4l2_format *))
+static int rkvdec_s_capture_fmt(struct file *file, void *priv,
+				struct v4l2_format *f)
 {
 	struct rkvdec_ctx *ctx = fh_to_rkvdec_ctx(priv);
 	struct vb2_queue *vq;
+	int ret;
 
-	if (!try_fmt)
-		return -EINVAL;
-
-	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+	/* Change not allowed if queue is busy */
+	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
+			     V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 	if (vb2_is_busy(vq))
 		return -EBUSY;
 
-	return try_fmt(file, priv, f);
-}
-
-static int rkvdec_s_capture_fmt(struct file *file, void *priv,
-				struct v4l2_format *f)
-{
-	struct rkvdec_ctx *ctx = fh_to_rkvdec_ctx(priv);
-	int ret;
-
-	ret = rkvdec_s_fmt(file, priv, f, rkvdec_try_capture_fmt);
+	ret = rkvdec_try_capture_fmt(file, priv, f);
 	if (ret)
 		return ret;
 
@@ -309,9 +298,20 @@ static int rkvdec_s_output_fmt(struct file *file, void *priv,
 	struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
 	const struct rkvdec_coded_fmt_desc *desc;
 	struct v4l2_format *cap_fmt;
-	struct vb2_queue *peer_vq;
+	struct vb2_queue *peer_vq, *vq;
 	int ret;
 
+	/*
+	 * In order to support dynamic resolution change, the decoder admits
+	 * a resolution change, as long as the pixelformat remains. Can't be
+	 * done if streaming.
+	 */
+	vq = v4l2_m2m_get_vq(m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+	if (vb2_is_streaming(vq) ||
+	    (vb2_is_busy(vq) &&
+	     f->fmt.pix_mp.pixelformat != ctx->coded_fmt.fmt.pix_mp.pixelformat))
+		return -EBUSY;
+
 	/*
 	 * Since format change on the OUTPUT queue will reset the CAPTURE
 	 * queue, we can't allow doing so when the CAPTURE queue has buffers
@@ -321,7 +321,7 @@ static int rkvdec_s_output_fmt(struct file *file, void *priv,
 	if (vb2_is_busy(peer_vq))
 		return -EBUSY;
 
-	ret = rkvdec_s_fmt(file, priv, f, rkvdec_try_output_fmt);
+	ret = rkvdec_try_output_fmt(file, priv, f);
 	if (ret)
 		return ret;
 
-- 
GitLab


From 151eff588043db6383ec062120c79c11ed5908c5 Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Wed, 15 Sep 2021 18:14:07 +0200
Subject: [PATCH 0954/4878] media: ir-kbd-i2c: improve responsiveness of
 hauppauge zilog receivers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit c73ba202a851c0b611ef2c25e568fadeff5e667f upstream.

The IR receiver has two issues:

 - Sometimes there is no response to a button press
 - Sometimes a button press is repeated when it should not have been

Hanging the polling interval fixes this behaviour.

Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=994050

Cc: stable@vger.kernel.org
Suggested-by: Joaquín Alberto Calderón Pozo <kini_calderon@hotmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/i2c/ir-kbd-i2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/ir-kbd-i2c.c b/drivers/media/i2c/ir-kbd-i2c.c
index 92376592455ee..56674173524fd 100644
--- a/drivers/media/i2c/ir-kbd-i2c.c
+++ b/drivers/media/i2c/ir-kbd-i2c.c
@@ -791,6 +791,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		rc_proto    = RC_PROTO_BIT_RC5 | RC_PROTO_BIT_RC6_MCE |
 							RC_PROTO_BIT_RC6_6A_32;
 		ir_codes    = RC_MAP_HAUPPAUGE;
+		ir->polling_interval = 125;
 		probe_tx = true;
 		break;
 	}
-- 
GitLab


From a2b3dbc9fd241af29c36225e107d3ffa912ec97b Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 18 Jun 2021 14:29:03 +0200
Subject: [PATCH 0955/4878] media: v4l2-ioctl: Fix check_ext_ctrls

commit 861f92cb9160b14beef0ada047384c2340701ee2 upstream.

Drivers that do not use the ctrl-framework use this function instead.

Fix the following issues:

- Do not check for multiple classes when getting the DEF_VAL.
- Return -EINVAL for request_api calls
- Default value cannot be changed, return EINVAL as soon as possible.
- Return the right error_idx
[If an error is found when validating the list of controls passed with
VIDIOC_G_EXT_CTRLS, then error_idx shall be set to ctrls->count to
indicate to userspace that no actual hardware was touched.
It would have been much nicer of course if error_idx could point to the
control index that failed the validation, but sadly that's not how the
API was designed.]

Fixes v4l2-compliance:
Control ioctls (Input 0):
        warn: v4l2-test-controls.cpp(834): error_idx should be equal to count
        warn: v4l2-test-controls.cpp(855): error_idx should be equal to count
		fail: v4l2-test-controls.cpp(813): doioctl(node, VIDIOC_G_EXT_CTRLS, &ctrls)
	test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL
Buffer ioctls (Input 0):
		fail: v4l2-test-buffers.cpp(1994): ret != EINVAL && ret != EBADR && ret != ENOTTY
	test Requests: FAIL

Cc: stable@vger.kernel.org
Fixes: 6fa6f831f095 ("media: v4l2-ctrls: add core request support")
Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/v4l2-core/v4l2-ioctl.c | 60 ++++++++++++++++++----------
 1 file changed, 39 insertions(+), 21 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 9eda8b91d17af..42958ce22de19 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -907,7 +907,7 @@ static void v4l_print_default(const void *arg, bool write_only)
 	pr_cont("driver-specific ioctl\n");
 }
 
-static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
+static bool check_ext_ctrls(struct v4l2_ext_controls *c, unsigned long ioctl)
 {
 	__u32 i;
 
@@ -916,23 +916,41 @@ static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
 	for (i = 0; i < c->count; i++)
 		c->controls[i].reserved2[0] = 0;
 
-	/* V4L2_CID_PRIVATE_BASE cannot be used as control class
-	   when using extended controls.
-	   Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
-	   is it allowed for backwards compatibility.
-	 */
-	if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
-		return 0;
-	if (!c->which)
-		return 1;
+	switch (c->which) {
+	case V4L2_CID_PRIVATE_BASE:
+		/*
+		 * V4L2_CID_PRIVATE_BASE cannot be used as control class
+		 * when using extended controls.
+		 * Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
+		 * is it allowed for backwards compatibility.
+		 */
+		if (ioctl == VIDIOC_G_CTRL || ioctl == VIDIOC_S_CTRL)
+			return false;
+		break;
+	case V4L2_CTRL_WHICH_DEF_VAL:
+		/* Default value cannot be changed */
+		if (ioctl == VIDIOC_S_EXT_CTRLS ||
+		    ioctl == VIDIOC_TRY_EXT_CTRLS) {
+			c->error_idx = c->count;
+			return false;
+		}
+		return true;
+	case V4L2_CTRL_WHICH_CUR_VAL:
+		return true;
+	case V4L2_CTRL_WHICH_REQUEST_VAL:
+		c->error_idx = c->count;
+		return false;
+	}
+
 	/* Check that all controls are from the same control class. */
 	for (i = 0; i < c->count; i++) {
 		if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
-			c->error_idx = i;
-			return 0;
+			c->error_idx = ioctl == VIDIOC_TRY_EXT_CTRLS ? i :
+								      c->count;
+			return false;
 		}
 	}
-	return 1;
+	return true;
 }
 
 static int check_fmt(struct file *file, enum v4l2_buf_type type)
@@ -2226,7 +2244,7 @@ static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
 	ctrls.controls = &ctrl;
 	ctrl.id = p->id;
 	ctrl.value = p->value;
-	if (check_ext_ctrls(&ctrls, 1)) {
+	if (check_ext_ctrls(&ctrls, VIDIOC_G_CTRL)) {
 		int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
 
 		if (ret == 0)
@@ -2260,7 +2278,7 @@ static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
 	ctrls.controls = &ctrl;
 	ctrl.id = p->id;
 	ctrl.value = p->value;
-	if (check_ext_ctrls(&ctrls, 1))
+	if (check_ext_ctrls(&ctrls, VIDIOC_S_CTRL))
 		return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
 	return -EINVAL;
 }
@@ -2282,8 +2300,8 @@ static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
 					vfd, vfd->v4l2_dev->mdev, p);
 	if (ops->vidioc_g_ext_ctrls == NULL)
 		return -ENOTTY;
-	return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
-					-EINVAL;
+	return check_ext_ctrls(p, VIDIOC_G_EXT_CTRLS) ?
+				ops->vidioc_g_ext_ctrls(file, fh, p) : -EINVAL;
 }
 
 static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
@@ -2303,8 +2321,8 @@ static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
 					vfd, vfd->v4l2_dev->mdev, p);
 	if (ops->vidioc_s_ext_ctrls == NULL)
 		return -ENOTTY;
-	return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
-					-EINVAL;
+	return check_ext_ctrls(p, VIDIOC_S_EXT_CTRLS) ?
+				ops->vidioc_s_ext_ctrls(file, fh, p) : -EINVAL;
 }
 
 static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
@@ -2324,8 +2342,8 @@ static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
 					  vfd, vfd->v4l2_dev->mdev, p);
 	if (ops->vidioc_try_ext_ctrls == NULL)
 		return -ENOTTY;
-	return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
-					-EINVAL;
+	return check_ext_ctrls(p, VIDIOC_TRY_EXT_CTRLS) ?
+			ops->vidioc_try_ext_ctrls(file, fh, p) : -EINVAL;
 }
 
 /*
-- 
GitLab


From f0750e98010a162191f7cb01f177e8df162af814 Mon Sep 17 00:00:00 2001
From: Johnathon Clark <john.clark@cantab.net>
Date: Wed, 20 Oct 2021 14:12:51 +0100
Subject: [PATCH 0956/4878] ALSA: hda/realtek: Fix mic mute LED for the HP
 Spectre x360 14

commit 5fc462c3aaad601d5089fd5588a5799896a6937d upstream.

On the 'HP Spectre x360 Convertible 14-ea0xx' the microphone mute led is
controlled by GPIO 0x04. The speaker mute LED does not seem to be
exposed by GPIO and is there not set.

[ a slight coding-style fix by tiwai ]

Fixes: c3bb2b521944 ("ALSA: hda/realtek: Quirk for HP Spectre x360 14 amp setup")
Signed-off-by: Johnathon Clark <john.clark@cantab.net>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211020131253.35894-1-john.clark@cantab.net
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f511ae66bc8aa..bff5a76979539 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4300,6 +4300,16 @@ static void alc287_fixup_hp_gpio_led(struct hda_codec *codec,
 	alc_fixup_hp_gpio_led(codec, action, 0x10, 0);
 }
 
+static void alc245_fixup_hp_gpio_led(struct hda_codec *codec,
+				const struct hda_fixup *fix, int action)
+{
+	struct alc_spec *spec = codec->spec;
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE)
+		spec->micmute_led_polarity = 1;
+	alc_fixup_hp_gpio_led(codec, action, 0, 0x04);
+}
+
 /* turn on/off mic-mute LED per capture hook via VREF change */
 static int vref_micmute_led_set(struct led_classdev *led_cdev,
 				enum led_brightness brightness)
@@ -6616,6 +6626,7 @@ enum {
 	ALC285_FIXUP_THINKPAD_NO_BASS_SPK_HEADSET_JACK,
 	ALC287_FIXUP_HP_GPIO_LED,
 	ALC256_FIXUP_HP_HEADSET_MIC,
+	ALC245_FIXUP_HP_GPIO_LED,
 	ALC236_FIXUP_DELL_AIO_HEADSET_MIC,
 	ALC282_FIXUP_ACER_DISABLE_LINEOUT,
 	ALC255_FIXUP_ACER_LIMIT_INT_MIC_BOOST,
@@ -7239,6 +7250,8 @@ static const struct hda_fixup alc269_fixups[] = {
 	[ALC245_FIXUP_HP_X360_AMP] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc245_fixup_hp_x360_amp,
+		.chained = true,
+		.chain_id = ALC245_FIXUP_HP_GPIO_LED
 	},
 	[ALC288_FIXUP_DELL_HEADSET_MODE] = {
 		.type = HDA_FIXUP_FUNC,
@@ -8328,6 +8341,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc256_fixup_tongfang_reset_persistent_settings,
 	},
+	[ALC245_FIXUP_HP_GPIO_LED] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc245_fixup_hp_gpio_led,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
-- 
GitLab


From 3d0e5d2eaff1c065116668582808003b4cd88780 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 28 Oct 2021 09:09:11 +0200
Subject: [PATCH 0957/4878] ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute
 LED

commit 375f8426ed994addd2be4d76febc946a6fdd8280 upstream.

HP OMEN 15 laptop requires the quirk to fiddle with COEF 0x0b bit 2
for toggling the mute LED.  It's already implemented for other HP
laptops, and we just need to add a proper fixup entry.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214735
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211028070911.18891-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index bff5a76979539..f4e33ccee4b51 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8530,6 +8530,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 		      ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x8783, "HP ZBook Fury 15 G7 Mobile Workstation",
 		      ALC285_FIXUP_HP_GPIO_AMP_INIT),
+	SND_PCI_QUIRK(0x103c, 0x8788, "HP OMEN 15", ALC285_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x87c8, "HP", ALC287_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x87e5, "HP ProBook 440 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x87e7, "HP ProBook 450 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
-- 
GitLab


From 0288f838a2e3a7a6814911c82a25b1ff7dde2e52 Mon Sep 17 00:00:00 2001
From: Tim Crawford <tcrawford@system76.com>
Date: Mon, 1 Nov 2021 10:21:34 -0600
Subject: [PATCH 0958/4878] ALSA: hda/realtek: Add quirk for Clevo PC70HS

commit dbfe83507cf4ea66ce4efee2ac14c5ad420e31d3 upstream.

Apply the PB51ED PCI quirk to the Clevo PC70HS. Fixes audio output from
the internal speakers.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211101162134.5336-1-tcrawford@system76.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f4e33ccee4b51..c3596cda2e496 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2551,6 +2551,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1558, 0x67d1, "Clevo PB71[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x67e1, "Clevo PB71[DE][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x67e5, "Clevo PC70D[PRS](?:-D|-G)?", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
+	SND_PCI_QUIRK(0x1558, 0x67f1, "Clevo PC70H[PRS]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x70d1, "Clevo PC70[ER][CDF]", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x7714, "Clevo X170SM", ALC1220_FIXUP_CLEVO_PB51ED_PINS),
 	SND_PCI_QUIRK(0x1558, 0x7715, "Clevo X170KM-G", ALC1220_FIXUP_CLEVO_PB51ED),
-- 
GitLab


From 88bcfcc50d0ead805cb1ab5791982e2589da3997 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Tue, 2 Nov 2021 11:21:04 -0600
Subject: [PATCH 0959/4878] ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ

commit 1278cc5ac2f96bab50dd55c8c05e0a6a77ce323e upstream.

On Clevo NH77HJ, NH77HP, and their 15" variants, there is a headset
microphone input attached to 0x19 that does not have a jack detect. In
order to get it working, the pin configuration needs to be set
correctly, and a new ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE fixup is
applied. This is similar to the existing System76 quirk for ALC293, but
for ALC256.

Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211102172104.10610-1-tcrawford@system76.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c3596cda2e496..2e813d5865be1 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6645,6 +6645,7 @@ enum {
 	ALC287_FIXUP_YOGA7_14ITL_SPEAKERS,
 	ALC287_FIXUP_13S_GEN2_SPEAKERS,
 	ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS,
+	ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8346,6 +8347,15 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc245_fixup_hp_gpio_led,
 	},
+	[ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x19, 0x03a11120 }, /* use as headset mic, without its own jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -8642,11 +8652,15 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1558, 0x40a1, "Clevo NL40GU", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x40c1, "Clevo NL40[CZ]U", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x40d1, "Clevo NL41DU", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x5015, "Clevo NH5[58]H[HJK]Q", ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x5017, "Clevo NH7[79]H[HJK]Q", ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50a3, "Clevo NJ51GU", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50b3, "Clevo NK50S[BEZ]", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50b6, "Clevo NK50S5", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50b8, "Clevo NK50SZ", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50d5, "Clevo NP50D5", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x50e1, "Clevo NH5[58]HPQ", ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x50e2, "Clevo NH7[79]HPQ", ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50f0, "Clevo NH50A[CDF]", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50f2, "Clevo NH50E[PR]", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x50f3, "Clevo NH58DPQ", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
-- 
GitLab


From a770cb746bddce4ebd985f9e560f132b7bdec089 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 4 Nov 2021 16:57:26 +0100
Subject: [PATCH 0960/4878] ALSA: hda/realtek: Add a quirk for Acer Spin
 SP513-54N

commit 2a5bb694488bb6593066d46881bfd9d07edd1628 upstream.

Another model requires ALC255_FIXUP_ACER_MIC_NO_PRESENCE fixup.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=211853
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211104155726.2090997-1-perex@perex.cz
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2e813d5865be1..b414d760c8824 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8392,6 +8392,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x1308, "Acer Aspire Z24-890", ALC286_FIXUP_ACER_AIO_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x132a, "Acer TravelMate B114-21", ALC233_FIXUP_ACER_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1025, 0x1330, "Acer TravelMate X514-51T", ALC255_FIXUP_ACER_HEADSET_MIC),
+	SND_PCI_QUIRK(0x1025, 0x141f, "Acer Spin SP513-54N", ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1025, 0x142b, "Acer Swift SF314-42", ALC255_FIXUP_ACER_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1025, 0x1430, "Acer TravelMate B311R-31", ALC256_FIXUP_ACER_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1025, 0x1466, "Acer Aspire A515-56", ALC255_FIXUP_ACER_HEADPHONE_AND_MIC),
-- 
GitLab


From 62b189f9f3c51c986595904399011001b06a43cb Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sun, 7 Nov 2021 09:33:39 +0100
Subject: [PATCH 0961/4878] ALSA: hda/realtek: Add quirk for ASUS UX550VE

commit 4fad4fb9871b43389e4f4bead18ec693064697bb upstream.

ASUS UX550VE (SSID 1043:1970) requires a similar workaround for
managing the routing of the 4 speakers like some other ASUS models.
Add a corresponding quirk entry for fixing it.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212641
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211107083339.18013-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b414d760c8824..e8e62febbaa4b 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8590,6 +8590,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x18b1, "Asus MJ401TA", ALC256_FIXUP_ASUS_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1043, 0x18f1, "Asus FX505DT", ALC256_FIXUP_ASUS_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1043, 0x194e, "ASUS UX563FD", ALC294_FIXUP_ASUS_HPE),
+	SND_PCI_QUIRK(0x1043, 0x1970, "ASUS UX550VE", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1982, "ASUS B1400CEPE", ALC256_FIXUP_ASUS_HPE),
 	SND_PCI_QUIRK(0x1043, 0x19ce, "ASUS B9450FA", ALC294_FIXUP_ASUS_HPE),
 	SND_PCI_QUIRK(0x1043, 0x19e1, "ASUS UX581LV", ALC295_FIXUP_ASUS_MIC_NO_PRESENCE),
-- 
GitLab


From 4f9e9c389e107e2c4f262beeab483d8947d1ab4e Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
Date: Wed, 10 Nov 2021 22:40:32 +0800
Subject: [PATCH 0962/4878] ALSA: hda/realtek: Add quirk for HP EliteBook 840
 G7 mute LED

commit c058493df7edcef8f48c1494d9a84218519f966b upstream.

The mute and micmute LEDs don't work on HP EliteBook 840 G7. The same
quirk for other HP laptops can let LEDs work, so apply it.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211110144033.118451-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e8e62febbaa4b..5b28275147057 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8532,6 +8532,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8716, "HP Elite Dragonfly G2 Notebook PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x8720, "HP EliteBook x360 1040 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x8724, "HP EliteBook 850 G7", ALC285_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x8728, "HP EliteBook 840 G7", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8729, "HP", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8730, "HP ProBook 445 G7", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
 	SND_PCI_QUIRK(0x103c, 0x8736, "HP", ALC285_FIXUP_HP_GPIO_AMP_INIT),
-- 
GitLab


From 0e4c288a74a3238b5e8ce63cb984ec62a3fd6495 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 26 Oct 2021 11:54:01 +0200
Subject: [PATCH 0963/4878] ALSA: ua101: fix division by zero at probe

commit 55f261b73a7e1cb254577c3536cef8f415de220a upstream.

Add the missing endpoint max-packet sanity check to probe() to avoid
division by zero in alloc_stream_buffers() in case a malicious device
has broken descriptors (or when doing descriptor fuzz testing).

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Fixes: 63978ab3e3e9 ("sound: add Edirol UA-101 support")
Cc: stable@vger.kernel.org      # 2.6.34
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211026095401.26522-1-johan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/misc/ua101.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c
index 6b30155964ec0..5dd1cbe29d12b 100644
--- a/sound/usb/misc/ua101.c
+++ b/sound/usb/misc/ua101.c
@@ -1001,7 +1001,7 @@ static int detect_usb_format(struct ua101 *ua)
 		fmt_playback->bSubframeSize * ua->playback.channels;
 
 	epd = &ua->intf[INTF_CAPTURE]->altsetting[1].endpoint[0].desc;
-	if (!usb_endpoint_is_isoc_in(epd)) {
+	if (!usb_endpoint_is_isoc_in(epd) || usb_endpoint_maxp(epd) == 0) {
 		dev_err(&ua->dev->dev, "invalid capture endpoint\n");
 		return -ENXIO;
 	}
@@ -1009,7 +1009,7 @@ static int detect_usb_format(struct ua101 *ua)
 	ua->capture.max_packet_bytes = usb_endpoint_maxp(epd);
 
 	epd = &ua->intf[INTF_PLAYBACK]->altsetting[1].endpoint[0].desc;
-	if (!usb_endpoint_is_isoc_out(epd)) {
+	if (!usb_endpoint_is_isoc_out(epd) || usb_endpoint_maxp(epd) == 0) {
 		dev_err(&ua->dev->dev, "invalid playback endpoint\n");
 		return -ENXIO;
 	}
-- 
GitLab


From 21f9c02a4dedca2f9011bbeaf1159b04d9931a34 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:11:41 +0200
Subject: [PATCH 0964/4878] ALSA: 6fire: fix control and bulk message timeouts

commit 9b371c6cc37f954360989eec41c2ddc5a6b83917 upstream.

USB control and bulk message timeouts are specified in milliseconds and
should specifically not vary with CONFIG_HZ.

Fixes: c6d43ba816d1 ("ALSA: usb/6fire - Driver for TerraTec DMX 6Fire USB")
Cc: stable@vger.kernel.org      # 2.6.39
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025121142.6531-2-johan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/6fire/comm.c     | 2 +-
 sound/usb/6fire/firmware.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c
index 43a2a62d66f7e..49629d4bb327a 100644
--- a/sound/usb/6fire/comm.c
+++ b/sound/usb/6fire/comm.c
@@ -95,7 +95,7 @@ static int usb6fire_comm_send_buffer(u8 *buffer, struct usb_device *dev)
 	int actual_len;
 
 	ret = usb_interrupt_msg(dev, usb_sndintpipe(dev, COMM_EP),
-			buffer, buffer[1] + 2, &actual_len, HZ);
+			buffer, buffer[1] + 2, &actual_len, 1000);
 	if (ret < 0)
 		return ret;
 	else if (actual_len != buffer[1] + 2)
diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
index 8981e61f2da4a..c51abc54d2f84 100644
--- a/sound/usb/6fire/firmware.c
+++ b/sound/usb/6fire/firmware.c
@@ -160,7 +160,7 @@ static int usb6fire_fw_ezusb_write(struct usb_device *device,
 {
 	return usb_control_msg_send(device, 0, type,
 				    USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				    value, 0, data, len, HZ, GFP_KERNEL);
+				    value, 0, data, len, 1000, GFP_KERNEL);
 }
 
 static int usb6fire_fw_ezusb_read(struct usb_device *device,
@@ -168,7 +168,7 @@ static int usb6fire_fw_ezusb_read(struct usb_device *device,
 {
 	return usb_control_msg_recv(device, 0, type,
 				    USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				    value, 0, data, len, HZ, GFP_KERNEL);
+				    value, 0, data, len, 1000, GFP_KERNEL);
 }
 
 static int usb6fire_fw_fpga_write(struct usb_device *device,
@@ -178,7 +178,7 @@ static int usb6fire_fw_fpga_write(struct usb_device *device,
 	int ret;
 
 	ret = usb_bulk_msg(device, usb_sndbulkpipe(device, FPGA_EP), data, len,
-			&actual_len, HZ);
+			&actual_len, 1000);
 	if (ret < 0)
 		return ret;
 	else if (actual_len != len)
-- 
GitLab


From 3c7a3f2d79f73edf5a8fa1d57edefaec617b5db3 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:11:42 +0200
Subject: [PATCH 0965/4878] ALSA: line6: fix control and interrupt message
 timeouts

commit f4000b58b64344871d7b27c05e73932f137cfef6 upstream.

USB control and interrupt message timeouts are specified in milliseconds
and should specifically not vary with CONFIG_HZ.

Fixes: 705ececd1c60 ("Staging: add line6 usb driver")
Cc: stable@vger.kernel.org      # 2.6.30
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025121142.6531-3-johan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/line6/driver.c   | 14 +++++++-------
 sound/usb/line6/driver.h   |  2 +-
 sound/usb/line6/podhd.c    |  6 +++---
 sound/usb/line6/toneport.c |  2 +-
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index 9602929b7de90..59faa5a9a7141 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -113,12 +113,12 @@ int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
 			retval = usb_interrupt_msg(line6->usbdev,
 						usb_sndintpipe(line6->usbdev, properties->ep_ctrl_w),
 						(char *)frag_buf, frag_size,
-						&partial, LINE6_TIMEOUT * HZ);
+						&partial, LINE6_TIMEOUT);
 		} else {
 			retval = usb_bulk_msg(line6->usbdev,
 						usb_sndbulkpipe(line6->usbdev, properties->ep_ctrl_w),
 						(char *)frag_buf, frag_size,
-						&partial, LINE6_TIMEOUT * HZ);
+						&partial, LINE6_TIMEOUT);
 		}
 
 		if (retval) {
@@ -347,7 +347,7 @@ int line6_read_data(struct usb_line6 *line6, unsigned address, void *data,
 	ret = usb_control_msg_send(usbdev, 0, 0x67,
 				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 				   (datalen << 8) | 0x21, address, NULL, 0,
-				   LINE6_TIMEOUT * HZ, GFP_KERNEL);
+				   LINE6_TIMEOUT, GFP_KERNEL);
 	if (ret) {
 		dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
 		goto exit;
@@ -360,7 +360,7 @@ int line6_read_data(struct usb_line6 *line6, unsigned address, void *data,
 		ret = usb_control_msg_recv(usbdev, 0, 0x67,
 					   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 					   0x0012, 0x0000, &len, 1,
-					   LINE6_TIMEOUT * HZ, GFP_KERNEL);
+					   LINE6_TIMEOUT, GFP_KERNEL);
 		if (ret) {
 			dev_err(line6->ifcdev,
 				"receive length failed (error %d)\n", ret);
@@ -387,7 +387,7 @@ int line6_read_data(struct usb_line6 *line6, unsigned address, void *data,
 	/* receive the result: */
 	ret = usb_control_msg_recv(usbdev, 0, 0x67,
 				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-				   0x0013, 0x0000, data, datalen, LINE6_TIMEOUT * HZ,
+				   0x0013, 0x0000, data, datalen, LINE6_TIMEOUT,
 				   GFP_KERNEL);
 	if (ret)
 		dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
@@ -417,7 +417,7 @@ int line6_write_data(struct usb_line6 *line6, unsigned address, void *data,
 
 	ret = usb_control_msg_send(usbdev, 0, 0x67,
 				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-				   0x0022, address, data, datalen, LINE6_TIMEOUT * HZ,
+				   0x0022, address, data, datalen, LINE6_TIMEOUT,
 				   GFP_KERNEL);
 	if (ret) {
 		dev_err(line6->ifcdev,
@@ -430,7 +430,7 @@ int line6_write_data(struct usb_line6 *line6, unsigned address, void *data,
 
 		ret = usb_control_msg_recv(usbdev, 0, 0x67,
 					   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-					   0x0012, 0x0000, status, 1, LINE6_TIMEOUT * HZ,
+					   0x0012, 0x0000, status, 1, LINE6_TIMEOUT,
 					   GFP_KERNEL);
 		if (ret) {
 			dev_err(line6->ifcdev,
diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h
index 71d3da1db8c81..ecf3a2b39c7eb 100644
--- a/sound/usb/line6/driver.h
+++ b/sound/usb/line6/driver.h
@@ -27,7 +27,7 @@
 #define LINE6_FALLBACK_INTERVAL 10
 #define LINE6_FALLBACK_MAXPACKETSIZE 16
 
-#define LINE6_TIMEOUT 1
+#define LINE6_TIMEOUT 1000
 #define LINE6_BUFSIZE_LISTEN 64
 #define LINE6_MIDI_MESSAGE_MAXLEN 256
 
diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c
index 28794a35949d4..b24bc82f89e37 100644
--- a/sound/usb/line6/podhd.c
+++ b/sound/usb/line6/podhd.c
@@ -190,7 +190,7 @@ static int podhd_dev_start(struct usb_line6_podhd *pod)
 	ret = usb_control_msg_send(usbdev, 0,
 					0x67, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 					0x11, 0,
-					NULL, 0, LINE6_TIMEOUT * HZ, GFP_KERNEL);
+					NULL, 0, LINE6_TIMEOUT, GFP_KERNEL);
 	if (ret) {
 		dev_err(pod->line6.ifcdev, "read request failed (error %d)\n", ret);
 		goto exit;
@@ -200,7 +200,7 @@ static int podhd_dev_start(struct usb_line6_podhd *pod)
 	ret = usb_control_msg_recv(usbdev, 0, 0x67,
 					USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 					0x11, 0x0,
-					init_bytes, 3, LINE6_TIMEOUT * HZ, GFP_KERNEL);
+					init_bytes, 3, LINE6_TIMEOUT, GFP_KERNEL);
 	if (ret) {
 		dev_err(pod->line6.ifcdev,
 			"receive length failed (error %d)\n", ret);
@@ -220,7 +220,7 @@ static int podhd_dev_start(struct usb_line6_podhd *pod)
 					USB_REQ_SET_FEATURE,
 					USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_DIR_OUT,
 					1, 0,
-					NULL, 0, LINE6_TIMEOUT * HZ, GFP_KERNEL);
+					NULL, 0, LINE6_TIMEOUT, GFP_KERNEL);
 exit:
 	return ret;
 }
diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c
index 4e5693c97aa42..e33df58740a91 100644
--- a/sound/usb/line6/toneport.c
+++ b/sound/usb/line6/toneport.c
@@ -128,7 +128,7 @@ static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2)
 
 	ret = usb_control_msg_send(usbdev, 0, 0x67,
 				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-				   cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ,
+				   cmd1, cmd2, NULL, 0, LINE6_TIMEOUT,
 				   GFP_KERNEL);
 
 	if (ret) {
-- 
GitLab


From 9259518fab5bc80f88c1c902bd57b6807377fba8 Mon Sep 17 00:00:00 2001
From: Jason Ormes <skryking@gmail.com>
Date: Sat, 30 Oct 2021 15:04:05 -0500
Subject: [PATCH 0966/4878] ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for
 48k-fixed quirk

commit 8f27b689066113a3e579d4df171c980c54368c4e upstream.

Adding the Line6 HX-Stomp XL USB_ID as it needs this fixed frequency
quirk as well.

The device is basically just the HX-Stomp with some more buttons on
the face.  I've done some recording with it after adding it, and it
seems to function properly with this fix.  The Midi features appear to
be working as well.

[ a coding style fix and patch reformat by tiwai ]

Signed-off-by: Jason Ormes <skryking@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211030200405.1358678-1-skryking@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/format.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/format.c b/sound/usb/format.c
index 5c5b76c611480..4693384db0695 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -410,6 +410,7 @@ static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip,
 	case USB_ID(0x0e41, 0x4242): /* Line6 Helix Rack */
 	case USB_ID(0x0e41, 0x4244): /* Line6 Helix LT */
 	case USB_ID(0x0e41, 0x4246): /* Line6 HX-Stomp */
+	case USB_ID(0x0e41, 0x4253): /* Line6 HX-Stomp XL */
 	case USB_ID(0x0e41, 0x4247): /* Line6 Pod Go */
 	case USB_ID(0x0e41, 0x4248): /* Line6 Helix >= fw 2.82 */
 	case USB_ID(0x0e41, 0x4249): /* Line6 Helix Rack >= fw 2.82 */
-- 
GitLab


From f503a25a3de3d8ce434277edee518555c6e89465 Mon Sep 17 00:00:00 2001
From: Alexander Tsoy <alexander@tsoy.me>
Date: Sat, 30 Oct 2021 20:43:08 +0300
Subject: [PATCH 0967/4878] ALSA: usb-audio: Add registration quirk for JBL
 Quantum 400

commit 763d92ed5dece7d439fc28a88b2d2728d525ffd9 upstream.

Add another device ID for JBL Quantum 400. It requires the same quirk as
other JBL Quantum devices.

Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211030174308.1011825-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index a45b27a2ed4ec..75d4d317b34b6 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1897,6 +1897,7 @@ static const struct registration_quirk registration_quirks[] = {
 	REG_QUIRK_ENTRY(0x0951, 0x16ea, 2),	/* Kingston HyperX Cloud Flight S */
 	REG_QUIRK_ENTRY(0x0ecb, 0x1f46, 2),	/* JBL Quantum 600 */
 	REG_QUIRK_ENTRY(0x0ecb, 0x1f47, 2),	/* JBL Quantum 800 */
+	REG_QUIRK_ENTRY(0x0ecb, 0x1f4c, 2),	/* JBL Quantum 400 */
 	REG_QUIRK_ENTRY(0x0ecb, 0x2039, 2),	/* JBL Quantum 400 */
 	REG_QUIRK_ENTRY(0x0ecb, 0x203c, 2),	/* JBL Quantum 600 */
 	REG_QUIRK_ENTRY(0x0ecb, 0x203e, 2),	/* JBL Quantum 800 */
-- 
GitLab


From ecd536c57ab71ed1b06ebbc6231101545127cc0b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 10 Nov 2021 20:46:33 +0100
Subject: [PATCH 0968/4878] ALSA: hda: Free card instance properly at probe
 errors

commit 39173303c83859723dab32c2abfb97296d6af3bf upstream.

The recent change in hda-intel driver to allow repeated probes
surfaced a problem that has been hidden until; the probe process in
the work calls azx_free() at the error path, and this skips the card
free process that eventually releases codec instances.  As a result,
we get a kernel WARNING like:

  snd_hda_intel 0000:00:1f.3: Cannot probe codecs, giving up
  ------------[ cut here ]------------
  WARNING: CPU: 14 PID: 186 at sound/hda/hdac_bus.c:73
  ....

For fixing this, we need to call snd_card_free() instead of
azx_free().  Additionally, the device drvdata has to be cleared, as
the driver binding itself is still active.  Then the PM and other
driver callbacks will ignore the procedure.

Fixes: c0f1886de7e1 ("ALSA: hda: intel: Allow repeatedly probing on codec configuration errors")
Reported-and-tested-by: Scott Branden <scott.branden@broadcom.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/063e2397-7edb-5f48-7b0d-618b938d9dd8@broadcom.com
Link: https://lore.kernel.org/r/20211110194633.19098-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/hda_intel.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 8bc27e7c05905..1bae0746e7266 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2392,7 +2392,8 @@ static int azx_probe_continue(struct azx *chip)
 
 out_free:
 	if (err < 0) {
-		azx_free(chip);
+		pci_set_drvdata(pci, NULL);
+		snd_card_free(chip->card);
 		return err;
 	}
 
-- 
GitLab


From 7c6fd525044c20082233f15312f62a9aee18ec38 Mon Sep 17 00:00:00 2001
From: Austin Kim <austin.kim@lge.com>
Date: Tue, 9 Nov 2021 00:37:42 +0000
Subject: [PATCH 0969/4878] ALSA: synth: missing check for possible NULL after
 the call to kstrdup

commit d159037abbe3412285c271bdfb9cdf19e62678ff upstream.

If kcalloc() return NULL due to memory starvation, it is possible for
kstrdup() to return NULL in similar case. So add null check after the call
to kstrdup() is made.

[ minor coding-style fix by tiwai ]

Signed-off-by: Austin Kim <austin.kim@lge.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211109003742.GA5423@raspberrypi
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/synth/emux/emux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c
index f65e6c7b139f5..6695530bba9b3 100644
--- a/sound/synth/emux/emux.c
+++ b/sound/synth/emux/emux.c
@@ -88,7 +88,7 @@ int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, ch
 	emu->name = kstrdup(name, GFP_KERNEL);
 	emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
 			      GFP_KERNEL);
-	if (emu->voices == NULL)
+	if (emu->name == NULL || emu->voices == NULL)
 		return -ENOMEM;
 
 	/* create soundfont list */
-- 
GitLab


From b980ce4ebb8b8d79b71b63f374607fa434a1d9dd Mon Sep 17 00:00:00 2001
From: Wang Wensheng <wangwensheng4@huawei.com>
Date: Wed, 3 Nov 2021 03:35:17 +0000
Subject: [PATCH 0970/4878] ALSA: timer: Fix use-after-free problem

commit c0317c0e87094f5b5782b6fdef5ae0a4b150496c upstream.

When the timer instance was add into ack_list but was not currently in
process, the user could stop it via snd_timer_stop1() without delete it
from the ack_list. Then the user could free the timer instance and when
it was actually processed UAF occurred.

This issue could be reproduced via testcase snd_timer01 in ltp - running
several instances of that testcase at the same time.

What I actually met was that the ack_list of the timer broken and the
kernel went into deadloop with irqoff. That could be detected by
hardlockup detector on board or when we run it on qemu, we could use gdb
to dump the ack_list when the console has no response.

To fix this issue, we delete the timer instance from ack_list and
active_list unconditionally in snd_timer_stop1().

Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
Suggested-by: Takashi Iwai <tiwai@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211103033517.80531-1-wangwensheng4@huawei.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/timer.c b/sound/core/timer.c
index c15c8314671b7..963ddd9e77158 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -624,13 +624,13 @@ static int snd_timer_stop1(struct snd_timer_instance *timeri, bool stop)
 	if (!timer)
 		return -EINVAL;
 	spin_lock_irqsave(&timer->lock, flags);
+	list_del_init(&timeri->ack_list);
+	list_del_init(&timeri->active_list);
 	if (!(timeri->flags & (SNDRV_TIMER_IFLG_RUNNING |
 			       SNDRV_TIMER_IFLG_START))) {
 		result = -EBUSY;
 		goto unlock;
 	}
-	list_del_init(&timeri->ack_list);
-	list_del_init(&timeri->active_list);
 	if (timer->card && timer->card->shutdown)
 		goto unlock;
 	if (stop) {
-- 
GitLab


From 782025948bc6ab36ebad2de20816b0302a3269a9 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 5 Nov 2021 10:15:17 +0100
Subject: [PATCH 0971/4878] ALSA: timer: Unconditionally unlink slave
 instances, too

commit ffdd98277f0a1d15a67a74ae09bee713df4c0dbc upstream.

Like the previous fix (commit c0317c0e8709 "ALSA: timer: Fix
use-after-free problem"), we have to unlink slave timer instances
immediately at snd_timer_stop(), too.  Otherwise it may leave a stale
entry in the list if the slave instance is freed before actually
running.

Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211105091517.21733-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/timer.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/sound/core/timer.c b/sound/core/timer.c
index 963ddd9e77158..04cd8953605ab 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -665,23 +665,22 @@ static int snd_timer_stop1(struct snd_timer_instance *timeri, bool stop)
 static int snd_timer_stop_slave(struct snd_timer_instance *timeri, bool stop)
 {
 	unsigned long flags;
+	bool running;
 
 	spin_lock_irqsave(&slave_active_lock, flags);
-	if (!(timeri->flags & SNDRV_TIMER_IFLG_RUNNING)) {
-		spin_unlock_irqrestore(&slave_active_lock, flags);
-		return -EBUSY;
-	}
+	running = timeri->flags & SNDRV_TIMER_IFLG_RUNNING;
 	timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
 	if (timeri->timer) {
 		spin_lock(&timeri->timer->lock);
 		list_del_init(&timeri->ack_list);
 		list_del_init(&timeri->active_list);
-		snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP :
-				  SNDRV_TIMER_EVENT_PAUSE);
+		if (running)
+			snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP :
+					  SNDRV_TIMER_EVENT_PAUSE);
 		spin_unlock(&timeri->timer->lock);
 	}
 	spin_unlock_irqrestore(&slave_active_lock, flags);
-	return 0;
+	return running ? 0 : -EBUSY;
 }
 
 /*
-- 
GitLab


From aa21b7e3d3205322d11dbced09941702ef308d8d Mon Sep 17 00:00:00 2001
From: Shaoying Xu <shaoyi@amazon.com>
Date: Thu, 2 Sep 2021 16:44:12 +0000
Subject: [PATCH 0972/4878] ext4: fix lazy initialization next schedule time
 computation in more granular unit

commit 39fec6889d15a658c3a3ebb06fd69d3584ddffd3 upstream.

Ext4 file system has default lazy inode table initialization setup once
it is mounted. However, it has issue on computing the next schedule time
that makes the timeout same amount in jiffies but different real time in
secs if with various HZ values. Therefore, fix by measuring the current
time in a more granular unit nanoseconds and make the next schedule time
independent of the HZ value.

Fixes: bfff68738f1c ("ext4: add support for lazy inode table initialization")
Signed-off-by: Shaoying Xu <shaoyi@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210902164412.9994-2-shaoyi@amazon.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/super.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 953c7e8757831..b1af6588bad01 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3436,9 +3436,9 @@ static int ext4_run_li_request(struct ext4_li_request *elr)
 	struct super_block *sb = elr->lr_super;
 	ext4_group_t ngroups = EXT4_SB(sb)->s_groups_count;
 	ext4_group_t group = elr->lr_next_group;
-	unsigned long timeout = 0;
 	unsigned int prefetch_ios = 0;
 	int ret = 0;
+	u64 start_time;
 
 	if (elr->lr_mode == EXT4_LI_MODE_PREFETCH_BBITMAP) {
 		elr->lr_next_group = ext4_mb_prefetch(sb, group,
@@ -3475,14 +3475,13 @@ static int ext4_run_li_request(struct ext4_li_request *elr)
 		ret = 1;
 
 	if (!ret) {
-		timeout = jiffies;
+		start_time = ktime_get_real_ns();
 		ret = ext4_init_inode_table(sb, group,
 					    elr->lr_timeout ? 0 : 1);
 		trace_ext4_lazy_itable_init(sb, group);
 		if (elr->lr_timeout == 0) {
-			timeout = (jiffies - timeout) *
-				EXT4_SB(elr->lr_super)->s_li_wait_mult;
-			elr->lr_timeout = timeout;
+			elr->lr_timeout = nsecs_to_jiffies((ktime_get_real_ns() - start_time) *
+				EXT4_SB(elr->lr_super)->s_li_wait_mult);
 		}
 		elr->lr_next_sched = jiffies + elr->lr_timeout;
 		elr->lr_next_group = group + 1;
-- 
GitLab


From 4089432dc0302a981bfc7e3fe63885eb0a6c8589 Mon Sep 17 00:00:00 2001
From: yangerkun <yangerkun@huawei.com>
Date: Fri, 3 Sep 2021 14:27:47 +0800
Subject: [PATCH 0973/4878] ext4: ensure enough credits in
 ext4_ext_shift_path_extents

commit 4268496e48dc681cfa53b92357314b5d7221e625 upstream.

Like ext4_ext_rm_leaf, we can ensure that there are enough credits
before every call that will consume credits.  As part of this fix we
fold the functionality of ext4_access_path() into
ext4_ext_shift_path_extents().  This change is needed as a preparation
for the next bugfix patch.

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20210903062748.4118886-3-yangerkun@huawei.com
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 49 +++++++++++++++--------------------------------
 1 file changed, 15 insertions(+), 34 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index aa4d74f9d1623..98e0194a7b174 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4970,36 +4970,6 @@ int ext4_get_es_cache(struct inode *inode, struct fiemap_extent_info *fieinfo,
 	return ext4_fill_es_cache_info(inode, start_blk, len_blks, fieinfo);
 }
 
-/*
- * ext4_access_path:
- * Function to access the path buffer for marking it dirty.
- * It also checks if there are sufficient credits left in the journal handle
- * to update path.
- */
-static int
-ext4_access_path(handle_t *handle, struct inode *inode,
-		struct ext4_ext_path *path)
-{
-	int credits, err;
-
-	if (!ext4_handle_valid(handle))
-		return 0;
-
-	/*
-	 * Check if need to extend journal credits
-	 * 3 for leaf, sb, and inode plus 2 (bmap and group
-	 * descriptor) for each block group; assume two block
-	 * groups
-	 */
-	credits = ext4_writepage_trans_blocks(inode);
-	err = ext4_datasem_ensure_credits(handle, inode, 7, credits, 0);
-	if (err < 0)
-		return err;
-
-	err = ext4_ext_get_access(handle, inode, path);
-	return err;
-}
-
 /*
  * ext4_ext_shift_path_extents:
  * Shift the extents of a path structure lying between path[depth].p_ext
@@ -5014,6 +4984,7 @@ ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift,
 	int depth, err = 0;
 	struct ext4_extent *ex_start, *ex_last;
 	bool update = false;
+	int credits, restart_credits;
 	depth = path->p_depth;
 
 	while (depth >= 0) {
@@ -5023,13 +4994,23 @@ ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift,
 				return -EFSCORRUPTED;
 
 			ex_last = EXT_LAST_EXTENT(path[depth].p_hdr);
+			/* leaf + sb + inode */
+			credits = 3;
+			if (ex_start == EXT_FIRST_EXTENT(path[depth].p_hdr)) {
+				update = true;
+				/* extent tree + sb + inode */
+				credits = depth + 2;
+			}
 
-			err = ext4_access_path(handle, inode, path + depth);
+			restart_credits = ext4_writepage_trans_blocks(inode);
+			err = ext4_datasem_ensure_credits(handle, inode, credits,
+					restart_credits, 0);
 			if (err)
 				goto out;
 
-			if (ex_start == EXT_FIRST_EXTENT(path[depth].p_hdr))
-				update = true;
+			err = ext4_ext_get_access(handle, inode, path + depth);
+			if (err)
+				goto out;
 
 			while (ex_start <= ex_last) {
 				if (SHIFT == SHIFT_LEFT) {
@@ -5060,7 +5041,7 @@ ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift,
 		}
 
 		/* Update index too */
-		err = ext4_access_path(handle, inode, path + depth);
+		err = ext4_ext_get_access(handle, inode, path + depth);
 		if (err)
 			goto out;
 
-- 
GitLab


From d81e341fb13ad8cd21e10d795c577c060dab130d Mon Sep 17 00:00:00 2001
From: yangerkun <yangerkun@huawei.com>
Date: Fri, 3 Sep 2021 14:27:48 +0800
Subject: [PATCH 0974/4878] ext4: refresh the ext4_ext_path struct after
 dropping i_data_sem.

commit 1811bc401aa58c7bdb0df3205aa6613b49d32127 upstream.

After we drop i_data sem, we need to reload the ext4_ext_path
structure since the extent tree can change once i_data_sem is
released.

This addresses the BUG:

[52117.465187] ------------[ cut here ]------------
[52117.465686] kernel BUG at fs/ext4/extents.c:1756!
...
[52117.478306] Call Trace:
[52117.478565]  ext4_ext_shift_extents+0x3ee/0x710
[52117.479020]  ext4_fallocate+0x139c/0x1b40
[52117.479405]  ? __do_sys_newfstat+0x6b/0x80
[52117.479805]  vfs_fallocate+0x151/0x4b0
[52117.480177]  ksys_fallocate+0x4a/0xa0
[52117.480533]  __x64_sys_fallocate+0x22/0x30
[52117.480930]  do_syscall_64+0x35/0x80
[52117.481277]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[52117.481769] RIP: 0033:0x7fa062f855ca

Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20210903062748.4118886-4-yangerkun@huawei.com
Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 98e0194a7b174..c2f237653f68e 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -5005,8 +5005,11 @@ ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift,
 			restart_credits = ext4_writepage_trans_blocks(inode);
 			err = ext4_datasem_ensure_credits(handle, inode, credits,
 					restart_credits, 0);
-			if (err)
+			if (err) {
+				if (err > 0)
+					err = -EAGAIN;
 				goto out;
+			}
 
 			err = ext4_ext_get_access(handle, inode, path + depth);
 			if (err)
@@ -5080,6 +5083,7 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
 	int ret = 0, depth;
 	struct ext4_extent *extent;
 	ext4_lblk_t stop, *iterator, ex_start, ex_end;
+	ext4_lblk_t tmp = EXT_MAX_BLOCKS;
 
 	/* Let path point to the last extent */
 	path = ext4_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL,
@@ -5133,11 +5137,15 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
 	 * till we reach stop. In case of right shift, iterator points to stop
 	 * and it is decreased till we reach start.
 	 */
+again:
 	if (SHIFT == SHIFT_LEFT)
 		iterator = &start;
 	else
 		iterator = &stop;
 
+	if (tmp != EXT_MAX_BLOCKS)
+		*iterator = tmp;
+
 	/*
 	 * Its safe to start updating extents.  Start and stop are unsigned, so
 	 * in case of right shift if extent with 0 block is reached, iterator
@@ -5166,6 +5174,7 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
 			}
 		}
 
+		tmp = *iterator;
 		if (SHIFT == SHIFT_LEFT) {
 			extent = EXT_LAST_EXTENT(path[depth].p_hdr);
 			*iterator = le32_to_cpu(extent->ee_block) +
@@ -5184,6 +5193,9 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
 		}
 		ret = ext4_ext_shift_path_extents(path, shift, inode,
 				handle, SHIFT);
+		/* iterator can be NULL which means we should break */
+		if (ret == -EAGAIN)
+			goto again;
 		if (ret)
 			break;
 	}
-- 
GitLab


From b05eea1bcb363dc2aa139ddb1b1876fb6ef85977 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Tue, 2 Nov 2021 11:10:37 +0100
Subject: [PATCH 0975/4878] fuse: fix page stealing

commit 712a951025c0667ff00b25afc360f74e639dfabe upstream.

It is possible to trigger a crash by splicing anon pipe bufs to the fuse
device.

The reason for this is that anon_pipe_buf_release() will reuse buf->page if
the refcount is 1, but that page might have already been stolen and its
flags modified (e.g. PG_lru added).

This happens in the unlikely case of fuse_dev_splice_write() getting around
to calling pipe_buf_release() after a page has been stolen, added to the
page cache and removed from the page cache.

Fix by calling pipe_buf_release() right after the page was inserted into
the page cache.  In this case the page has an elevated refcount so any
release function will know that the page isn't reusable.

Reported-by: Frank Dinoff <fdinoff@google.com>
Link: https://lore.kernel.org/r/CAAmZXrsGg2xsP1CK+cbuEMumtrqdvD-NKnWzhNcvn71RV3c1yw@mail.gmail.com/
Fixes: dd3bb14f44a6 ("fuse: support splice() writing to fuse device")
Cc: <stable@vger.kernel.org> # v2.6.35
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/dev.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index f943eea9fe4e1..fb1917730e0e4 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -851,6 +851,12 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 		goto out_put_old;
 	}
 
+	/*
+	 * Release while we have extra ref on stolen page.  Otherwise
+	 * anon_pipe_buf_release() might think the page can be reused.
+	 */
+	pipe_buf_release(cs->pipe, buf);
+
 	get_page(newpage);
 
 	if (!(buf->flags & PIPE_BUF_FLAG_LRU))
@@ -2035,8 +2041,12 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
 
 	pipe_lock(pipe);
 out_free:
-	for (idx = 0; idx < nbuf; idx++)
-		pipe_buf_release(pipe, &bufs[idx]);
+	for (idx = 0; idx < nbuf; idx++) {
+		struct pipe_buffer *buf = &bufs[idx];
+
+		if (buf->ops)
+			pipe_buf_release(pipe, buf);
+	}
 	pipe_unlock(pipe);
 
 	kvfree(bufs);
-- 
GitLab


From 115810a265273c052e754af60ab4faed908838de Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Fri, 15 Oct 2021 12:24:16 -0500
Subject: [PATCH 0976/4878] x86/sme: Use #define USE_EARLY_PGTABLE_L5 in
 mem_encrypt_identity.c

commit e7d445ab26db833d6640d4c9a08bee176777cc82 upstream.

When runtime support for converting between 4-level and 5-level pagetables
was added to the kernel, the SME code that built pagetables was updated
to use the pagetable functions, e.g. p4d_offset(), etc., in order to
simplify the code. However, the use of the pagetable functions in early
boot code requires the use of the USE_EARLY_PGTABLE_L5 #define in order to
ensure that the proper definition of pgtable_l5_enabled() is used.

Without the #define, pgtable_l5_enabled() is #defined as
cpu_feature_enabled(X86_FEATURE_LA57). In early boot, the CPU features
have not yet been discovered and populated, so pgtable_l5_enabled() will
return false even when 5-level paging is enabled. This causes the SME code
to always build 4-level pagetables to perform the in-place encryption.
If 5-level paging is enabled, switching to the SME pagetables results in
a page-fault that kills the boot.

Adding the #define results in pgtable_l5_enabled() using the
__pgtable_l5_enabled variable set in early boot and the SME code building
pagetables for the proper paging level.

Fixes: aad983913d77 ("x86/mm/encrypt: Simplify sme_populate_pgd() and sme_populate_pgd_large()")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: <stable@vger.kernel.org> # 4.18.x
Link: https://lkml.kernel.org/r/2cb8329655f5c753905812d951e212022a480475.1634318656.git.thomas.lendacky@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/mm/mem_encrypt_identity.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c
index 65f599e9075bc..011e042b47ba7 100644
--- a/arch/x86/mm/mem_encrypt_identity.c
+++ b/arch/x86/mm/mem_encrypt_identity.c
@@ -27,6 +27,15 @@
 #undef CONFIG_PARAVIRT_XXL
 #undef CONFIG_PARAVIRT_SPINLOCKS
 
+/*
+ * This code runs before CPU feature bits are set. By default, the
+ * pgtable_l5_enabled() function uses bit X86_FEATURE_LA57 to determine if
+ * 5-level paging is active, so that won't work here. USE_EARLY_PGTABLE_L5
+ * is provided to handle this situation and, instead, use a variable that
+ * has been set by the early boot code.
+ */
+#define USE_EARLY_PGTABLE_L5
+
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/mem_encrypt.h>
-- 
GitLab


From df8a74fc15ea59bdd1a1aebc8b1187370576e4e1 Mon Sep 17 00:00:00 2001
From: Jane Malalane <jane.malalane@citrix.com>
Date: Thu, 21 Oct 2021 11:47:44 +0100
Subject: [PATCH 0977/4878] x86/cpu: Fix migration safety with X86_BUG_NULL_SEL

commit 415de44076640483648d6c0f6d645a9ee61328ad upstream.

Currently, Linux probes for X86_BUG_NULL_SEL unconditionally which
makes it unsafe to migrate in a virtualised environment as the
properties across the migration pool might differ.

To be specific, the case which goes wrong is:

1. Zen1 (or earlier) and Zen2 (or later) in a migration pool
2. Linux boots on Zen2, probes and finds the absence of X86_BUG_NULL_SEL
3. Linux is then migrated to Zen1

Linux is now running on a X86_BUG_NULL_SEL-impacted CPU while believing
that the bug is fixed.

The only way to address the problem is to fully trust the "no longer
affected" CPUID bit when virtualised, because in the above case it would
be clear deliberately to indicate the fact "you might migrate to
somewhere which has this behaviour".

Zen3 adds the NullSelectorClearsBase CPUID bit to indicate that loading
a NULL segment selector zeroes the base and limit fields, as well as
just attributes. Zen2 also has this behaviour but doesn't have the NSCB
bit.

 [ bp: Minor touchups. ]

Signed-off-by: Jane Malalane <jane.malalane@citrix.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20211021104744.24126-1-jane.malalane@citrix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/amd.c    |  2 ++
 arch/x86/kernel/cpu/common.c | 44 ++++++++++++++++++++++++++++++------
 arch/x86/kernel/cpu/cpu.h    |  1 +
 arch/x86/kernel/cpu/hygon.c  |  2 ++
 4 files changed, 42 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index a2551b10780c6..acea05eed27d4 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1017,6 +1017,8 @@ static void init_amd(struct cpuinfo_x86 *c)
 	if (cpu_has(c, X86_FEATURE_IRPERF) &&
 	    !cpu_has_amd_erratum(c, amd_erratum_1054))
 		msr_set_bit(MSR_K7_HWCR, MSR_K7_HWCR_IRPERF_EN_BIT);
+
+	check_null_seg_clears_base(c);
 }
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index ec21f5e9ffd05..9c8fc6f513ed3 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1391,9 +1391,8 @@ void __init early_cpu_init(void)
 	early_identify_cpu(&boot_cpu_data);
 }
 
-static void detect_null_seg_behavior(struct cpuinfo_x86 *c)
+static bool detect_null_seg_behavior(void)
 {
-#ifdef CONFIG_X86_64
 	/*
 	 * Empirically, writing zero to a segment selector on AMD does
 	 * not clear the base, whereas writing zero to a segment
@@ -1414,10 +1413,43 @@ static void detect_null_seg_behavior(struct cpuinfo_x86 *c)
 	wrmsrl(MSR_FS_BASE, 1);
 	loadsegment(fs, 0);
 	rdmsrl(MSR_FS_BASE, tmp);
-	if (tmp != 0)
-		set_cpu_bug(c, X86_BUG_NULL_SEG);
 	wrmsrl(MSR_FS_BASE, old_base);
-#endif
+	return tmp == 0;
+}
+
+void check_null_seg_clears_base(struct cpuinfo_x86 *c)
+{
+	/* BUG_NULL_SEG is only relevant with 64bit userspace */
+	if (!IS_ENABLED(CONFIG_X86_64))
+		return;
+
+	/* Zen3 CPUs advertise Null Selector Clears Base in CPUID. */
+	if (c->extended_cpuid_level >= 0x80000021 &&
+	    cpuid_eax(0x80000021) & BIT(6))
+		return;
+
+	/*
+	 * CPUID bit above wasn't set. If this kernel is still running
+	 * as a HV guest, then the HV has decided not to advertize
+	 * that CPUID bit for whatever reason.	For example, one
+	 * member of the migration pool might be vulnerable.  Which
+	 * means, the bug is present: set the BUG flag and return.
+	 */
+	if (cpu_has(c, X86_FEATURE_HYPERVISOR)) {
+		set_cpu_bug(c, X86_BUG_NULL_SEG);
+		return;
+	}
+
+	/*
+	 * Zen2 CPUs also have this behaviour, but no CPUID bit.
+	 * 0x18 is the respective family for Hygon.
+	 */
+	if ((c->x86 == 0x17 || c->x86 == 0x18) &&
+	    detect_null_seg_behavior())
+		return;
+
+	/* All the remaining ones are affected */
+	set_cpu_bug(c, X86_BUG_NULL_SEG);
 }
 
 static void generic_identify(struct cpuinfo_x86 *c)
@@ -1453,8 +1485,6 @@ static void generic_identify(struct cpuinfo_x86 *c)
 
 	get_model_name(c); /* Default name */
 
-	detect_null_seg_behavior(c);
-
 	/*
 	 * ESPFIX is a strange bug.  All real CPUs have it.  Paravirt
 	 * systems that run Linux at CPL > 0 may or may not have the
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index 67944128876d7..093f5fc860e3f 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -73,6 +73,7 @@ extern int detect_extended_topology_early(struct cpuinfo_x86 *c);
 extern int detect_extended_topology(struct cpuinfo_x86 *c);
 extern int detect_ht_early(struct cpuinfo_x86 *c);
 extern void detect_ht(struct cpuinfo_x86 *c);
+extern void check_null_seg_clears_base(struct cpuinfo_x86 *c);
 
 unsigned int aperfmperf_get_khz(int cpu);
 
diff --git a/arch/x86/kernel/cpu/hygon.c b/arch/x86/kernel/cpu/hygon.c
index dc0840aae26c1..b78c471ec344b 100644
--- a/arch/x86/kernel/cpu/hygon.c
+++ b/arch/x86/kernel/cpu/hygon.c
@@ -351,6 +351,8 @@ static void init_hygon(struct cpuinfo_x86 *c)
 	/* Hygon CPUs don't reset SS attributes on SYSRET, Xen does. */
 	if (!cpu_has(c, X86_FEATURE_XENPV))
 		set_cpu_bug(c, X86_BUG_SYSRET_SS_ATTRS);
+
+	check_null_seg_clears_base(c);
 }
 
 static void cpu_detect_tlb_hygon(struct cpuinfo_x86 *c)
-- 
GitLab


From 73199aadcd5c56be232902debe74e2d6a4080313 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Fri, 8 Oct 2021 17:11:04 -0700
Subject: [PATCH 0978/4878] x86/irq: Ensure PI wakeup handler is unregistered
 before module unload

commit 6ff53f6a438f72998f56e82e76694a1df9d1ea2c upstream.

Add a synchronize_rcu() after clearing the posted interrupt wakeup handler
to ensure all readers, i.e. in-flight IRQ handlers, see the new handler
before returning to the caller.  If the caller is an exiting module and
is unregistering its handler, failure to wait could result in the IRQ
handler jumping into an unloaded module.

The registration path doesn't require synchronization, as it's the
caller's responsibility to not generate interrupts it cares about until
after its handler is registered.

Fixes: f6b3c72c2366 ("x86/irq: Define a global vector for VT-d Posted-Interrupts")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211009001107.3936588-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/irq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index c5dd50369e2f3..ce904c89c6c70 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -290,8 +290,10 @@ void kvm_set_posted_intr_wakeup_handler(void (*handler)(void))
 {
 	if (handler)
 		kvm_posted_intr_wakeup_handler = handler;
-	else
+	else {
 		kvm_posted_intr_wakeup_handler = dummy_handler;
+		synchronize_rcu();
+	}
 }
 EXPORT_SYMBOL_GPL(kvm_set_posted_intr_wakeup_handler);
 
-- 
GitLab


From 92556e3c2b2ed414225282b0024868b65ba3aafc Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Sat, 9 Oct 2021 14:58:40 +0800
Subject: [PATCH 0979/4878] ASoC: soc-core: fix null-ptr-deref in
 snd_soc_del_component_unlocked()

[ Upstream commit c448b7aa3e66042fc0f849d9a0fb90d1af82e948 ]

'component' is allocated in snd_soc_register_component(), but component->list
is not initalized, this may cause snd_soc_del_component_unlocked() deref null
ptr in the error handing case.

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:__list_del_entry_valid+0x81/0xf0
Call Trace:
 snd_soc_del_component_unlocked+0x69/0x1b0 [snd_soc_core]
 snd_soc_add_component.cold+0x54/0x6c [snd_soc_core]
 snd_soc_register_component+0x70/0x90 [snd_soc_core]
 devm_snd_soc_register_component+0x5e/0xd0 [snd_soc_core]
 tas2552_probe+0x265/0x320 [snd_soc_tas2552]
 ? tas2552_component_probe+0x1e0/0x1e0 [snd_soc_tas2552]
 i2c_device_probe+0xa31/0xbe0

Fix by adding INIT_LIST_HEAD() to snd_soc_component_initialize().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211009065840.3196239-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/soc-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e677422c10585..1332965968646 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2454,6 +2454,7 @@ int snd_soc_component_initialize(struct snd_soc_component *component,
 	INIT_LIST_HEAD(&component->dai_list);
 	INIT_LIST_HEAD(&component->dobj_list);
 	INIT_LIST_HEAD(&component->card_list);
+	INIT_LIST_HEAD(&component->list);
 	mutex_init(&component->io_mutex);
 
 	component->name = fmt_single_name(dev, &component->id);
-- 
GitLab


From 75710d583cc4ccdfad1d94078ab8368a7353a5df Mon Sep 17 00:00:00 2001
From: Davide Baldo <davide@baldo.me>
Date: Fri, 15 Oct 2021 09:21:22 +0200
Subject: [PATCH 0980/4878] ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx
 speakers

[ Upstream commit d94befbb5ae379f6dfd4fa6d460eacc09fa7b9c3 ]

In laptop 'HP Spectre x360 Convertible 15-eb1xxx/8811' both front and
rear speakers are silent, this patch fixes that by overriding the pin
layout and by initializing the amplifier which needs a GPIO pin to be
set to 1 then 0, similar to the existing HP Spectre x360 14 model.

In order to have volume control, both front and rear speakers were
forced to use the DAC1.

This patch also correctly map the mute LED but since there is no
microphone on/off switch exposed by the alsa subsystem it never turns
on by itself.

There are still known audio issues in this laptop: headset microphone
doesn't work, the button to mute/unmute microphone is not yet mapped,
the LED of the mute/unmute speakers doesn't seems to be exposed via
GPIO and never turns on.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213953
Signed-off-by: Davide Baldo <davide@baldo.me>
Link: https://lore.kernel.org/r/20211015072121.5287-1-davide@baldo.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_realtek.c | 46 +++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 5b28275147057..2eb06351de1fb 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6363,6 +6363,44 @@ static void alc_fixup_no_int_mic(struct hda_codec *codec,
 	}
 }
 
+/* GPIO1 = amplifier on/off
+ * GPIO3 = mic mute LED
+ */
+static void alc285_fixup_hp_spectre_x360_eb1(struct hda_codec *codec,
+					  const struct hda_fixup *fix, int action)
+{
+	static const hda_nid_t conn[] = { 0x02 };
+
+	struct alc_spec *spec = codec->spec;
+	static const struct hda_pintbl pincfgs[] = {
+		{ 0x14, 0x90170110 },  /* front/high speakers */
+		{ 0x17, 0x90170130 },  /* back/bass speakers */
+		{ }
+	};
+
+	//enable micmute led
+	alc_fixup_hp_gpio_led(codec, action, 0x00, 0x04);
+
+	switch (action) {
+	case HDA_FIXUP_ACT_PRE_PROBE:
+		spec->micmute_led_polarity = 1;
+		/* needed for amp of back speakers */
+		spec->gpio_mask |= 0x01;
+		spec->gpio_dir |= 0x01;
+		snd_hda_apply_pincfgs(codec, pincfgs);
+		/* share DAC to have unified volume control */
+		snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn), conn);
+		snd_hda_override_conn_list(codec, 0x17, ARRAY_SIZE(conn), conn);
+		break;
+	case HDA_FIXUP_ACT_INIT:
+		/* need to toggle GPIO to enable the amp of back speakers */
+		alc_update_gpio_data(codec, 0x01, true);
+		msleep(100);
+		alc_update_gpio_data(codec, 0x01, false);
+		break;
+	}
+}
+
 static void alc285_fixup_hp_spectre_x360(struct hda_codec *codec,
 					  const struct hda_fixup *fix, int action)
 {
@@ -6515,6 +6553,7 @@ enum {
 	ALC269_FIXUP_HP_DOCK_GPIO_MIC1_LED,
 	ALC280_FIXUP_HP_9480M,
 	ALC245_FIXUP_HP_X360_AMP,
+	ALC285_FIXUP_HP_SPECTRE_X360_EB1,
 	ALC288_FIXUP_DELL_HEADSET_MODE,
 	ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
 	ALC288_FIXUP_DELL_XPS_13,
@@ -8205,6 +8244,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc285_fixup_hp_spectre_x360,
 	},
+	[ALC285_FIXUP_HP_SPECTRE_X360_EB1] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc285_fixup_hp_spectre_x360_eb1
+	},
 	[ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc285_fixup_ideapad_s740_coef,
@@ -8555,6 +8598,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x87f7, "HP Spectre x360 14", ALC245_FIXUP_HP_X360_AMP),
 	SND_PCI_QUIRK(0x103c, 0x8805, "HP ProBook 650 G8 Notebook PC", ALC236_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x880d, "HP EliteBook 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x8811, "HP Spectre x360 15-eb1xxx", ALC285_FIXUP_HP_SPECTRE_X360_EB1),
+	SND_PCI_QUIRK(0x103c, 0x8812, "HP Spectre x360 15-eb1xxx", ALC285_FIXUP_HP_SPECTRE_X360_EB1),
 	SND_PCI_QUIRK(0x103c, 0x8846, "HP EliteBook 850 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8847, "HP EliteBook x360 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x884b, "HP EliteBook 840 Aero G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
@@ -8979,6 +9024,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
 	{.id = ALC245_FIXUP_HP_X360_AMP, .name = "alc245-hp-x360-amp"},
 	{.id = ALC295_FIXUP_HP_OMEN, .name = "alc295-hp-omen"},
 	{.id = ALC285_FIXUP_HP_SPECTRE_X360, .name = "alc285-hp-spectre-x360"},
+	{.id = ALC285_FIXUP_HP_SPECTRE_X360_EB1, .name = "alc285-hp-spectre-x360-eb1"},
 	{.id = ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP, .name = "alc287-ideapad-bass-spk-amp"},
 	{.id = ALC623_FIXUP_LENOVO_THINKSTATION_P340, .name = "alc623-lenovo-thinkstation-p340"},
 	{.id = ALC255_FIXUP_ACER_HEADPHONE_AND_MIC, .name = "alc255-acer-headphone-and-mic"},
-- 
GitLab


From 940783d08d1592619d3de15931de38c6da09cf13 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Mon, 18 Oct 2021 02:16:22 +0000
Subject: [PATCH 0981/4878] cavium: Return negative value when
 pci_alloc_irq_vectors() fails

[ Upstream commit b2cddb44bddc1a9c5949a978bb454bba863264db ]

During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cavium/thunder/nic_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index 9361f964bb9b2..816453a4f8d6c 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -1193,7 +1193,7 @@ static int nic_register_interrupts(struct nicpf *nic)
 		dev_err(&nic->pdev->dev,
 			"Request for #%d msix vectors failed, returned %d\n",
 			   nic->num_vec, ret);
-		return 1;
+		return ret;
 	}
 
 	/* Register mailbox interrupt handler */
-- 
GitLab


From 77fee241e6eb95a3ef317a1243e4a6f0f439f9d2 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Mon, 18 Oct 2021 01:56:21 +0000
Subject: [PATCH 0982/4878] scsi: qla2xxx: Return -ENOMEM if kzalloc() fails

[ Upstream commit 06634d5b6e923ed0d4772aba8def5a618f44c7fe ]

The driver probing function should return < 0 for failure, otherwise
kernel will treat value > 0 as success.

Link: https://lore.kernel.org/r/1634522181-31166-1-git-send-email-zheyuma97@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_os.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index e075f855f298e..813abaf1b0872 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -4079,7 +4079,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 					ql_dbg_pci(ql_dbg_init, ha->pdev,
 					    0xe0ee, "%s: failed alloc dsd\n",
 					    __func__);
-					return 1;
+					return -ENOMEM;
 				}
 				ha->dif_bundle_kallocs++;
 
-- 
GitLab


From a6cb5e09e16a049ac7f5d44d5cde0f65c72bda83 Mon Sep 17 00:00:00 2001
From: Dmitry Bogdanov <d.bogdanov@yadro.com>
Date: Mon, 18 Oct 2021 15:26:50 +0300
Subject: [PATCH 0983/4878] scsi: qla2xxx: Fix unmap of already freed sgl

[ Upstream commit 4a8f71014b4d56c4fb287607e844c0a9f68f46d9 ]

The sgl is freed in the target stack in target_release_cmd_kref() before
calling qlt_free_cmd() but there is an unmap of sgl in qlt_free_cmd() that
causes a panic if sgl is not yet DMA unmapped:

NIP dma_direct_unmap_sg+0xdc/0x180
LR  dma_direct_unmap_sg+0xc8/0x180
Call Trace:
 ql_dbg_prefix+0x68/0xc0 [qla2xxx] (unreliable)
 dma_unmap_sg_attrs+0x54/0xf0
 qlt_unmap_sg.part.19+0x54/0x1c0 [qla2xxx]
 qlt_free_cmd+0x124/0x1d0 [qla2xxx]
 tcm_qla2xxx_release_cmd+0x4c/0xa0 [tcm_qla2xxx]
 target_put_sess_cmd+0x198/0x370 [target_core_mod]
 transport_generic_free_cmd+0x6c/0x1b0 [target_core_mod]
 tcm_qla2xxx_complete_free+0x6c/0x90 [tcm_qla2xxx]

The sgl may be left unmapped in error cases of response sending.  For
instance, qlt_rdy_to_xfer() maps sgl and exits when session is being
deleted keeping the sgl mapped.

This patch removes use-after-free of the sgl and ensures that the sgl is
unmapped for any command that was not sent to firmware.

Link: https://lore.kernel.org/r/20211018122650.11846-1-d.bogdanov@yadro.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_target.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 8d4976725a75a..ebed14bed7835 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3256,8 +3256,7 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type,
 			"RESET-RSP online/active/old-count/new-count = %d/%d/%d/%d.\n",
 			vha->flags.online, qla2x00_reset_active(vha),
 			cmd->reset_count, qpair->chip_reset);
-		spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
-		return 0;
+		goto out_unmap_unlock;
 	}
 
 	/* Does F/W have an IOCBs for this request */
@@ -3380,10 +3379,6 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
 	prm.sg = NULL;
 	prm.req_cnt = 1;
 
-	/* Calculate number of entries and segments required */
-	if (qlt_pci_map_calc_cnt(&prm) != 0)
-		return -EAGAIN;
-
 	if (!qpair->fw_started || (cmd->reset_count != qpair->chip_reset) ||
 	    (cmd->sess && cmd->sess->deleted)) {
 		/*
@@ -3401,6 +3396,10 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd)
 		return 0;
 	}
 
+	/* Calculate number of entries and segments required */
+	if (qlt_pci_map_calc_cnt(&prm) != 0)
+		return -EAGAIN;
+
 	spin_lock_irqsave(qpair->qp_lock_ptr, flags);
 	/* Does F/W have an IOCBs for this request */
 	res = qlt_check_reserve_free_req(qpair, prm.req_cnt);
@@ -3805,9 +3804,6 @@ void qlt_free_cmd(struct qla_tgt_cmd *cmd)
 
 	BUG_ON(cmd->cmd_in_wq);
 
-	if (cmd->sg_mapped)
-		qlt_unmap_sg(cmd->vha, cmd);
-
 	if (!cmd->q_full)
 		qlt_decr_num_pend_cmds(cmd->vha);
 
-- 
GitLab


From ad01685177ce41afeab8c878405935c817487227 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Mon, 18 Oct 2021 14:20:38 +0000
Subject: [PATCH 0984/4878] mISDN: Fix return values of the probe function

[ Upstream commit e211210098cb7490db2183d725f5c0f10463a704 ]

During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/isdn/hardware/mISDN/hfcpci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index e501cb03f211d..bd087cca1c1d2 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -1994,14 +1994,14 @@ setup_hw(struct hfc_pci *hc)
 	pci_set_master(hc->pdev);
 	if (!hc->irq) {
 		printk(KERN_WARNING "HFC-PCI: No IRQ for PCI card found\n");
-		return 1;
+		return -EINVAL;
 	}
 	hc->hw.pci_io =
 		(char __iomem *)(unsigned long)hc->pdev->resource[1].start;
 
 	if (!hc->hw.pci_io) {
 		printk(KERN_WARNING "HFC-PCI: No IO-Mem for PCI card found\n");
-		return 1;
+		return -ENOMEM;
 	}
 	/* Allocate memory for FIFOS */
 	/* the memory needs to be on a 32k boundary within the first 4G */
@@ -2012,7 +2012,7 @@ setup_hw(struct hfc_pci *hc)
 	if (!buffer) {
 		printk(KERN_WARNING
 		       "HFC-PCI: Error allocating memory for FIFO!\n");
-		return 1;
+		return -ENOMEM;
 	}
 	hc->hw.fifos = buffer;
 	pci_write_config_dword(hc->pdev, 0x80, hc->hw.dmahandle);
@@ -2022,7 +2022,7 @@ setup_hw(struct hfc_pci *hc)
 		       "HFC-PCI: Error in ioremap for PCI!\n");
 		dma_free_coherent(&hc->pdev->dev, 0x8000, hc->hw.fifos,
 				  hc->hw.dmahandle);
-		return 1;
+		return -ENOMEM;
 	}
 
 	printk(KERN_INFO
-- 
GitLab


From 7986fdbbe0090d208a2299d432f806979f6611b2 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Mon, 18 Oct 2021 14:32:57 +0000
Subject: [PATCH 0985/4878] cavium: Fix return values of the probe function

[ Upstream commit c69b2f46876825c726bd8a97c7fa852d8932bc32 ]

During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cavium/thunder/nicvf_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index f3b7b443f9648..c00f1a7ffc15f 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -1226,7 +1226,7 @@ static int nicvf_register_misc_interrupt(struct nicvf *nic)
 	if (ret < 0) {
 		netdev_err(nic->netdev,
 			   "Req for #%d msix vectors failed\n", nic->num_vec);
-		return 1;
+		return ret;
 	}
 
 	sprintf(nic->irq_name[irq], "%s Mbox", "NICVF");
@@ -1245,7 +1245,7 @@ static int nicvf_register_misc_interrupt(struct nicvf *nic)
 	if (!nicvf_check_pf_ready(nic)) {
 		nicvf_disable_intr(nic, NICVF_INTR_MBOX, 0);
 		nicvf_unregister_interrupts(nic);
-		return 1;
+		return -EIO;
 	}
 
 	return 0;
-- 
GitLab


From e519acba2faeca5259fe7126850a28ff76500819 Mon Sep 17 00:00:00 2001
From: Erik Ekman <erik@kryo.se>
Date: Tue, 19 Oct 2021 23:13:32 +0200
Subject: [PATCH 0986/4878] sfc: Export fibre-specific supported link modes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c62041c5baa9ded3bc6fd38d3f724de70683b489 ]

The 1/10GbaseT modes were set up for cards with SFP+ cages in
3497ed8c852a5 ("sfc: report supported link speeds on SFP connections").
10GbaseT was likely used since no 10G fibre mode existed.

The missing fibre modes for 1/10G were added to ethtool.h in 5711a9822144
("net: ethtool: add support for 1000BaseX and missing 10G link modes")
shortly thereafter.

The user guide available at https://support-nic.xilinx.com/wp/drivers
lists support for the following cable and transceiver types in section 2.9:
- QSFP28 100G Direct Attach Cables
- QSFP28 100G SR Optical Transceivers (with SR4 modules listed)
- SFP28 25G Direct Attach Cables
- SFP28 25G SR Optical Transceivers
- QSFP+ 40G Direct Attach Cables
- QSFP+ 40G Active Optical Cables
- QSFP+ 40G SR4 Optical Transceivers
- QSFP+ to SFP+ Breakout Direct Attach Cables
- QSFP+ to SFP+ Breakout Active Optical Cables
- SFP+ 10G Direct Attach Cables
- SFP+ 10G SR Optical Transceivers
- SFP+ 10G LR Optical Transceivers
- SFP 1000BASE‐T Transceivers
- 1G Optical Transceivers
(From user guide issue 28. Issue 16 which also includes older cards like
SFN5xxx/SFN6xxx has matching lists for 1/10/40G transceiver types.)

Regarding SFP+ 10GBASE‐T transceivers the latest guide says:
"Solarflare adapters do not support 10GBASE‐T transceiver modules."

Tested using SFN5122F-R7 (with 2 SFP+ ports). Supported link modes do not change
depending on module used (tested with 1000BASE-T, 1000BASE-BX10, 10GBASE-LR).
Before:

$ ethtool ext
Settings for ext:
	Supported ports: [ FIBRE ]
	Supported link modes:   1000baseT/Full
	                        10000baseT/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  Not reported
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: No
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: off
	Port: FIBRE
	PHYAD: 255
	Transceiver: internal
        Current message level: 0x000020f7 (8439)
                               drv probe link ifdown ifup rx_err tx_err hw
	Link detected: yes

After:

$ ethtool ext
Settings for ext:
	Supported ports: [ FIBRE ]
	Supported link modes:   1000baseT/Full
	                        1000baseX/Full
	                        10000baseCR/Full
	                        10000baseSR/Full
	                        10000baseLR/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  Not reported
	Advertised pause frame use: No
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  Not reported
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: No
	Link partner advertised FEC modes: Not reported
	Speed: 1000Mb/s
	Duplex: Full
	Auto-negotiation: off
	Port: FIBRE
	PHYAD: 255
	Transceiver: internal
	Supports Wake-on: g
	Wake-on: d
        Current message level: 0x000020f7 (8439)
                               drv probe link ifdown ifup rx_err tx_err hw
	Link detected: yes

Signed-off-by: Erik Ekman <erik@kryo.se>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sfc/mcdi_port_common.c | 37 +++++++++++++++------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/sfc/mcdi_port_common.c b/drivers/net/ethernet/sfc/mcdi_port_common.c
index 4bd3ef8f3384e..c4fe3c48ac46a 100644
--- a/drivers/net/ethernet/sfc/mcdi_port_common.c
+++ b/drivers/net/ethernet/sfc/mcdi_port_common.c
@@ -132,16 +132,27 @@ void mcdi_to_ethtool_linkset(u32 media, u32 cap, unsigned long *linkset)
 	case MC_CMD_MEDIA_SFP_PLUS:
 	case MC_CMD_MEDIA_QSFP_PLUS:
 		SET_BIT(FIBRE);
-		if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN))
+		if (cap & (1 << MC_CMD_PHY_CAP_1000FDX_LBN)) {
 			SET_BIT(1000baseT_Full);
-		if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN))
-			SET_BIT(10000baseT_Full);
-		if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN))
+			SET_BIT(1000baseX_Full);
+		}
+		if (cap & (1 << MC_CMD_PHY_CAP_10000FDX_LBN)) {
+			SET_BIT(10000baseCR_Full);
+			SET_BIT(10000baseLR_Full);
+			SET_BIT(10000baseSR_Full);
+		}
+		if (cap & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) {
 			SET_BIT(40000baseCR4_Full);
-		if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN))
+			SET_BIT(40000baseSR4_Full);
+		}
+		if (cap & (1 << MC_CMD_PHY_CAP_100000FDX_LBN)) {
 			SET_BIT(100000baseCR4_Full);
-		if (cap & (1 << MC_CMD_PHY_CAP_25000FDX_LBN))
+			SET_BIT(100000baseSR4_Full);
+		}
+		if (cap & (1 << MC_CMD_PHY_CAP_25000FDX_LBN)) {
 			SET_BIT(25000baseCR_Full);
+			SET_BIT(25000baseSR_Full);
+		}
 		if (cap & (1 << MC_CMD_PHY_CAP_50000FDX_LBN))
 			SET_BIT(50000baseCR2_Full);
 		break;
@@ -192,15 +203,19 @@ u32 ethtool_linkset_to_mcdi_cap(const unsigned long *linkset)
 		result |= (1 << MC_CMD_PHY_CAP_100FDX_LBN);
 	if (TEST_BIT(1000baseT_Half))
 		result |= (1 << MC_CMD_PHY_CAP_1000HDX_LBN);
-	if (TEST_BIT(1000baseT_Full) || TEST_BIT(1000baseKX_Full))
+	if (TEST_BIT(1000baseT_Full) || TEST_BIT(1000baseKX_Full) ||
+			TEST_BIT(1000baseX_Full))
 		result |= (1 << MC_CMD_PHY_CAP_1000FDX_LBN);
-	if (TEST_BIT(10000baseT_Full) || TEST_BIT(10000baseKX4_Full))
+	if (TEST_BIT(10000baseT_Full) || TEST_BIT(10000baseKX4_Full) ||
+			TEST_BIT(10000baseCR_Full) || TEST_BIT(10000baseLR_Full) ||
+			TEST_BIT(10000baseSR_Full))
 		result |= (1 << MC_CMD_PHY_CAP_10000FDX_LBN);
-	if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full))
+	if (TEST_BIT(40000baseCR4_Full) || TEST_BIT(40000baseKR4_Full) ||
+			TEST_BIT(40000baseSR4_Full))
 		result |= (1 << MC_CMD_PHY_CAP_40000FDX_LBN);
-	if (TEST_BIT(100000baseCR4_Full))
+	if (TEST_BIT(100000baseCR4_Full) || TEST_BIT(100000baseSR4_Full))
 		result |= (1 << MC_CMD_PHY_CAP_100000FDX_LBN);
-	if (TEST_BIT(25000baseCR_Full))
+	if (TEST_BIT(25000baseCR_Full) || TEST_BIT(25000baseSR_Full))
 		result |= (1 << MC_CMD_PHY_CAP_25000FDX_LBN);
 	if (TEST_BIT(50000baseCR2_Full))
 		result |= (1 << MC_CMD_PHY_CAP_50000FDX_LBN);
-- 
GitLab


From 6491ccdde2c5d1c7cf3114f867513ad13903104f Mon Sep 17 00:00:00 2001
From: Erik Ekman <erik@kryo.se>
Date: Wed, 20 Oct 2021 00:40:16 +0200
Subject: [PATCH 0987/4878] sfc: Don't use netif_info before net_device setup

[ Upstream commit bf6abf345dfa77786aca554bc58c64bd428ecb1d ]

Use pci_info instead to avoid unnamed/uninitialized noise:

[197088.688729] sfc 0000:01:00.0: Solarflare NIC detected
[197088.690333] sfc 0000:01:00.0: Part Number : SFN5122F
[197088.729061] sfc 0000:01:00.0 (unnamed net_device) (uninitialized): no SR-IOV VFs probed
[197088.729071] sfc 0000:01:00.0 (unnamed net_device) (uninitialized): no PTP support

Inspired by fa44821a4ddd ("sfc: don't use netif_info et al before
net_device is registered") from Heiner Kallweit.

Signed-off-by: Erik Ekman <erik@kryo.se>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sfc/ptp.c         | 4 ++--
 drivers/net/ethernet/sfc/siena_sriov.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index a39c5143b3864..797e51802ccbb 100644
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -648,7 +648,7 @@ static int efx_ptp_get_attributes(struct efx_nic *efx)
 	} else if (rc == -EINVAL) {
 		fmt = MC_CMD_PTP_OUT_GET_ATTRIBUTES_SECONDS_NANOSECONDS;
 	} else if (rc == -EPERM) {
-		netif_info(efx, probe, efx->net_dev, "no PTP support\n");
+		pci_info(efx->pci_dev, "no PTP support\n");
 		return rc;
 	} else {
 		efx_mcdi_display_error(efx, MC_CMD_PTP, sizeof(inbuf),
@@ -824,7 +824,7 @@ static int efx_ptp_disable(struct efx_nic *efx)
 	 * should only have been called during probe.
 	 */
 	if (rc == -ENOSYS || rc == -EPERM)
-		netif_info(efx, probe, efx->net_dev, "no PTP support\n");
+		pci_info(efx->pci_dev, "no PTP support\n");
 	else if (rc)
 		efx_mcdi_display_error(efx, MC_CMD_PTP,
 				       MC_CMD_PTP_IN_DISABLE_LEN,
diff --git a/drivers/net/ethernet/sfc/siena_sriov.c b/drivers/net/ethernet/sfc/siena_sriov.c
index 83dcfcae3d4b5..441e7f3e53751 100644
--- a/drivers/net/ethernet/sfc/siena_sriov.c
+++ b/drivers/net/ethernet/sfc/siena_sriov.c
@@ -1057,7 +1057,7 @@ void efx_siena_sriov_probe(struct efx_nic *efx)
 		return;
 
 	if (efx_siena_sriov_cmd(efx, false, &efx->vi_scale, &count)) {
-		netif_info(efx, probe, efx->net_dev, "no SR-IOV VFs probed\n");
+		pci_info(efx->pci_dev, "no SR-IOV VFs probed\n");
 		return;
 	}
 	if (count > 0 && count > max_vfs)
-- 
GitLab


From f03e04bb9d11d0f2e64e32b85c7473fd27e86d9a Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:19:08 +0200
Subject: [PATCH 0988/4878] hyperv/vmbus: include linux/bitops.h

[ Upstream commit 8017c99680fa65e1e8d999df1583de476a187830 ]

On arm64 randconfig builds, hyperv sometimes fails with this
error:

In file included from drivers/hv/hv_trace.c:3:
In file included from drivers/hv/hyperv_vmbus.h:16:
In file included from arch/arm64/include/asm/sync_bitops.h:5:
arch/arm64/include/asm/bitops.h:11:2: error: only <linux/bitops.h> can be included directly
In file included from include/asm-generic/bitops/hweight.h:5:
include/asm-generic/bitops/arch_hweight.h:9:9: error: implicit declaration of function '__sw_hweight32' [-Werror,-Wimplicit-function-declaration]
include/asm-generic/bitops/atomic.h:17:7: error: implicit declaration of function 'BIT_WORD' [-Werror,-Wimplicit-function-declaration]

Include the correct header first.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211018131929.2260087-1-arnd@kernel.org
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hv/hyperv_vmbus.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index 40e2b9f91163c..7845fa5de79e9 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -13,6 +13,7 @@
 #define _HYPERV_VMBUS_H
 
 #include <linux/list.h>
+#include <linux/bitops.h>
 #include <asm/sync_bitops.h>
 #include <asm/hyperv-tlfs.h>
 #include <linux/atomic.h>
-- 
GitLab


From a903984385175d5e074963d8a97736dff1100bb9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bastien=20Roucari=C3=A8s?= <rouca@debian.org>
Date: Thu, 16 Sep 2021 08:17:21 +0000
Subject: [PATCH 0989/4878] ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet
 phy-mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 55dd7e059098ce4bd0a55c251cb78e74604abb57 ]

Commit bbc4d71d6354 ("net: phy: realtek: fix rtl8211e rx/tx delay
config") sets the RX/TX delay according to the phy-mode property in the
device tree. For the A20-olinuxino-lime2 board this is "rgmii", which is the
wrong setting.

Following the example of a900cac3750b ("ARM: dts: sun7i: a20: bananapro:
Fix ethernet phy-mode") the phy-mode is changed to "rgmii-id" which gets
the Ethernet working again on this board.

Signed-off-by: Bastien Roucariès <rouca@debian.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210916081721.237137-1-rouca@debian.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
index 9ba62774e89a1..488933b87ad5a 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-lime2.dts
@@ -112,7 +112,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&gmac_rgmii_pins>;
 	phy-handle = <&phy1>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 
-- 
GitLab


From a1ea41f91dcbd2dd69ce47dbe8693261f20cbe3d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Anikiel?= <pan@semihalf.com>
Date: Mon, 20 Sep 2021 14:41:41 +0200
Subject: [PATCH 0990/4878] reset: socfpga: add empty driver allowing consumers
 to probe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 3ad60b4b3570937f3278509fe6797a5093ce53f8 ]

The early reset driver doesn't ever probe, which causes consuming
devices to be unable to probe. Add an empty driver to set this device
as available, allowing consumers to probe.

Signed-off-by: Paweł Anikiel <pan@semihalf.com>
Link: https://lore.kernel.org/r/20210920124141.1166544-4-pan@semihalf.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/reset/reset-socfpga.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/reset/reset-socfpga.c b/drivers/reset/reset-socfpga.c
index bdd9842961960..f9fa7fde7afb1 100644
--- a/drivers/reset/reset-socfpga.c
+++ b/drivers/reset/reset-socfpga.c
@@ -85,3 +85,29 @@ void __init socfpga_reset_init(void)
 	for_each_matching_node(np, socfpga_early_reset_dt_ids)
 		a10_reset_init(np);
 }
+
+/*
+ * The early driver is problematic, because it doesn't register
+ * itself as a driver. This causes certain device links to prevent
+ * consumer devices from probing. The hacky solution is to register
+ * an empty driver, whose only job is to attach itself to the reset
+ * manager and call probe.
+ */
+static const struct of_device_id socfpga_reset_dt_ids[] = {
+	{ .compatible = "altr,rst-mgr", },
+	{ /* sentinel */ },
+};
+
+static int reset_simple_probe(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver reset_socfpga_driver = {
+	.probe	= reset_simple_probe,
+	.driver = {
+		.name		= "socfpga-reset",
+		.of_match_table	= socfpga_reset_dt_ids,
+	},
+};
+builtin_platform_driver(reset_socfpga_driver);
-- 
GitLab


From 4002f3944d413c7ba22588c333c5645b029e6ecb Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 17 Oct 2021 10:59:49 -0700
Subject: [PATCH 0991/4878] mmc: winbond: don't build on M68K

[ Upstream commit 162079f2dccd02cb4b6654defd32ca387dd6d4d4 ]

The Winbond MMC driver fails to build on ARCH=m68k so prevent
that build config. Silences these build errors:

../drivers/mmc/host/wbsd.c: In function 'wbsd_request_end':
../drivers/mmc/host/wbsd.c:212:28: error: implicit declaration of function 'claim_dma_lock' [-Werror=implicit-function-declaration]
  212 |                 dmaflags = claim_dma_lock();
../drivers/mmc/host/wbsd.c:215:17: error: implicit declaration of function 'release_dma_lock'; did you mean 'release_task'? [-Werror=implicit-function-declaration]
  215 |                 release_dma_lock(dmaflags);

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211017175949.23838-1-rdunlap@infradead.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 31481c9fcc2ec..30ff42fd173e2 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -503,7 +503,7 @@ config MMC_OMAP_HS
 
 config MMC_WBSD
 	tristate "Winbond W83L51xD SD/MMC Card Interface support"
-	depends on ISA_DMA_API
+	depends on ISA_DMA_API && !M68K
 	help
 	  This selects the Winbond(R) W83L51xD Secure digital and
 	  Multimedia card Interface.
-- 
GitLab


From bc3e73ebb79b01abc121703669c65f54f0023cfe Mon Sep 17 00:00:00 2001
From: Bryant Mairs <bryant@mai.rs>
Date: Tue, 19 Oct 2021 09:24:33 -0500
Subject: [PATCH 0992/4878] drm: panel-orientation-quirks: Add quirk for Aya
 Neo 2021

[ Upstream commit def0c3697287f6e85d5ac68b21302966c95474f9 ]

Fixes screen orientation for the Aya Neo 2021 handheld gaming console.

Signed-off-by: Bryant Mairs <bryant@mai.rs>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211019142433.4295-1-bryant@mai.rs
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index f6bdec7fa9253..30c17a76f49ae 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -134,6 +134,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* AYA NEO 2021 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYADEVICE"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
+		},
+		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* GPD MicroPC (generic strings, also match on bios date) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
-- 
GitLab


From 0ad7f317b93394d4e866aee763ff1726cb6c6cea Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Thu, 21 Oct 2021 16:02:47 +0200
Subject: [PATCH 0993/4878] fcnal-test: kill hanging ping/nettest binaries on
 cleanup

[ Upstream commit 1f83b835a3eaa5ae4bd825fb07182698bfc243ba ]

On my box I see a bunch of ping/nettest processes hanging
around after fcntal-test.sh is done.

Clean those up before netns deletion.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211021140247.29691-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 02b0b9ead40b9..225440f5f99eb 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -436,10 +436,13 @@ cleanup()
 		ip -netns ${NSA} link set dev ${NSA_DEV} down
 		ip -netns ${NSA} link del dev ${NSA_DEV}
 
+		ip netns pids ${NSA} | xargs kill 2>/dev/null
 		ip netns del ${NSA}
 	fi
 
+	ip netns pids ${NSB} | xargs kill 2>/dev/null
 	ip netns del ${NSB}
+	ip netns pids ${NSC} | xargs kill 2>/dev/null
 	ip netns del ${NSC} >/dev/null 2>&1
 }
 
-- 
GitLab


From a3564fb7b0bf11d941d57c87b0f38a656a997860 Mon Sep 17 00:00:00 2001
From: Lorenz Bauer <lmb@cloudflare.com>
Date: Thu, 14 Oct 2021 15:25:52 +0100
Subject: [PATCH 0994/4878] bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT

[ Upstream commit 5d63ae908242f028bd10860cba98450d11c079b8 ]

Expose the maximum amount of useable memory from the arm64 JIT.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211014142554.53120-3-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/net/bpf_jit_comp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 345066b8e9fc8..064577ff9ff59 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -1134,6 +1134,11 @@ out:
 	return prog;
 }
 
+u64 bpf_jit_alloc_exec_limit(void)
+{
+	return BPF_JIT_REGION_SIZE;
+}
+
 void *bpf_jit_alloc_exec(unsigned long size)
 {
 	return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,
-- 
GitLab


From b92ac0a9ca8f27076c2096cae0896b94aaa4a6ac Mon Sep 17 00:00:00 2001
From: Lorenz Bauer <lmb@cloudflare.com>
Date: Thu, 14 Oct 2021 15:25:53 +0100
Subject: [PATCH 0995/4878] bpf: Prevent increasing bpf_jit_limit above max

[ Upstream commit fadb7ff1a6c2c565af56b4aacdd086b067eed440 ]

Restrict bpf_jit_limit to the maximum supported by the arch's JIT.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211014142554.53120-4-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/filter.h     | 1 +
 kernel/bpf/core.c          | 4 +++-
 net/core/sysctl_net_core.c | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/linux/filter.h b/include/linux/filter.h
index 822b701c803d1..bc6ce4b202a80 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -998,6 +998,7 @@ extern int bpf_jit_enable;
 extern int bpf_jit_harden;
 extern int bpf_jit_kallsyms;
 extern long bpf_jit_limit;
+extern long bpf_jit_limit_max;
 
 typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
 
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 72e4bf0ee5460..d3a1f25f8ec2e 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -528,6 +528,7 @@ int bpf_jit_enable   __read_mostly = IS_BUILTIN(CONFIG_BPF_JIT_DEFAULT_ON);
 int bpf_jit_kallsyms __read_mostly = IS_BUILTIN(CONFIG_BPF_JIT_DEFAULT_ON);
 int bpf_jit_harden   __read_mostly;
 long bpf_jit_limit   __read_mostly;
+long bpf_jit_limit_max __read_mostly;
 
 static void
 bpf_prog_ksym_set_addr(struct bpf_prog *prog)
@@ -821,7 +822,8 @@ u64 __weak bpf_jit_alloc_exec_limit(void)
 static int __init bpf_jit_charge_init(void)
 {
 	/* Only used as heuristic here to derive limit. */
-	bpf_jit_limit = min_t(u64, round_up(bpf_jit_alloc_exec_limit() >> 2,
+	bpf_jit_limit_max = bpf_jit_alloc_exec_limit();
+	bpf_jit_limit = min_t(u64, round_up(bpf_jit_limit_max >> 2,
 					    PAGE_SIZE), LONG_MAX);
 	return 0;
 }
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index d86d8d11cfe4a..2e0a4378e778a 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -419,7 +419,7 @@ static struct ctl_table net_core_table[] = {
 		.mode		= 0600,
 		.proc_handler	= proc_dolongvec_minmax_bpf_restricted,
 		.extra1		= &long_one,
-		.extra2		= &long_max,
+		.extra2		= &bpf_jit_limit_max,
 	},
 #endif
 	{
-- 
GitLab


From 69b14e23dfc3c140a9513266763c58d4688b038a Mon Sep 17 00:00:00 2001
From: Asmaa Mnebhi <asmaa@nvidia.com>
Date: Fri, 22 Oct 2021 09:44:38 -0400
Subject: [PATCH 0996/4878] gpio: mlxbf2.c: Add check for bgpio_init failure

[ Upstream commit c0eee6fbfa2b3377f1efed10dad539abeb7312aa ]

Add a check if bgpio_init fails.

Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-mlxbf2.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c
index befa5e1099439..d4b250b470b41 100644
--- a/drivers/gpio/gpio-mlxbf2.c
+++ b/drivers/gpio/gpio-mlxbf2.c
@@ -268,6 +268,11 @@ mlxbf2_gpio_probe(struct platform_device *pdev)
 			NULL,
 			0);
 
+	if (ret) {
+		dev_err(dev, "bgpio_init failed\n");
+		return ret;
+	}
+
 	gc->direction_input = mlxbf2_gpio_direction_input;
 	gc->direction_output = mlxbf2_gpio_direction_output;
 	gc->ngpio = npins;
-- 
GitLab


From 0e86b727a94fc4d532a166c449ab96e3b15015ea Mon Sep 17 00:00:00 2001
From: Dongli Zhang <dongli.zhang@oracle.com>
Date: Fri, 22 Oct 2021 16:31:39 -0700
Subject: [PATCH 0997/4878] xen/netfront: stop tx queues during live migration

[ Upstream commit 042b2046d0f05cf8124c26ff65dbb6148a4404fb ]

The tx queues are not stopped during the live migration. As a result, the
ndo_start_xmit() may access netfront_info->queues which is freed by
talk_to_netback()->xennet_destroy_queues().

This patch is to netif_device_detach() at the beginning of xen-netfront
resuming, and netif_device_attach() at the end of resuming.

     CPU A                                CPU B

 talk_to_netback()
 -> if (info->queues)
        xennet_destroy_queues(info);
    to free netfront_info->queues

                                        xennet_start_xmit()
                                        to access netfront_info->queues

  -> err = xennet_create_queues(info, &num_queues);

The idea is borrowed from virtio-net.

Cc: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/xen-netfront.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 3e9895bec15f0..dd79534910b05 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1671,6 +1671,10 @@ static int netfront_resume(struct xenbus_device *dev)
 
 	dev_dbg(&dev->dev, "%s\n", dev->nodename);
 
+	netif_tx_lock_bh(info->netdev);
+	netif_device_detach(info->netdev);
+	netif_tx_unlock_bh(info->netdev);
+
 	xennet_disconnect_backend(info);
 	return 0;
 }
@@ -2285,6 +2289,10 @@ static int xennet_connect(struct net_device *dev)
 	 * domain a kick because we've probably just requeued some
 	 * packets.
 	 */
+	netif_tx_lock_bh(np->netdev);
+	netif_device_attach(np->netdev);
+	netif_tx_unlock_bh(np->netdev);
+
 	netif_carrier_on(np->netdev);
 	for (j = 0; j < num_queues; ++j) {
 		queue = &np->queues[j];
-- 
GitLab


From db1d9d102ee45b0462237d3257d1520806ab0b4e Mon Sep 17 00:00:00 2001
From: Maurizio Lombardi <mlombard@redhat.com>
Date: Fri, 15 Oct 2021 10:26:34 +0200
Subject: [PATCH 0998/4878] nvmet-tcp: fix a memory leak when releasing a queue

[ Upstream commit 926245c7d22271307606c88b1fbb2539a8550e94 ]

page_frag_free() won't completely release the memory
allocated for the commands, the cache page must be explicitly
freed by calling __page_frag_cache_drain().

This bug can be easily reproduced by repeatedly
executing the following command on the initiator:

$echo 1 > /sys/devices/virtual/nvme-fabrics/ctl/nvme0/reset_controller

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/tcp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 5266d534c4b31..b4ef7e9e8461f 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -1398,6 +1398,7 @@ static void nvmet_tcp_uninit_data_in_cmds(struct nvmet_tcp_queue *queue)
 
 static void nvmet_tcp_release_queue_work(struct work_struct *w)
 {
+	struct page *page;
 	struct nvmet_tcp_queue *queue =
 		container_of(w, struct nvmet_tcp_queue, release_work);
 
@@ -1417,6 +1418,8 @@ static void nvmet_tcp_release_queue_work(struct work_struct *w)
 		nvmet_tcp_free_crypto(queue);
 	ida_simple_remove(&nvmet_tcp_queue_ida, queue->idx);
 
+	page = virt_to_head_page(queue->pf_cache.va);
+	__page_frag_cache_drain(page, queue->pf_cache.pagecnt_bias);
 	kfree(queue);
 }
 
-- 
GitLab


From 07f7a1864929fe705afd9b5b97946fe0b2983064 Mon Sep 17 00:00:00 2001
From: Thomas Perrot <thomas.perrot@bootlin.com>
Date: Fri, 22 Oct 2021 16:21:04 +0200
Subject: [PATCH 0999/4878] spi: spl022: fix Microwire full duplex mode

[ Upstream commit d81d0e41ed5fe7229a2c9a29d13bad288c7cf2d2 ]

There are missing braces in the function that verify controller parameters,
then an error is always returned when the parameter to select Microwire
frames operation is used on devices allowing it.

Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com>
Link: https://lore.kernel.org/r/20211022142104.1386379-1-thomas.perrot@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-pl022.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index d1776fea287e5..e4ee8b0847993 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1723,12 +1723,13 @@ static int verify_controller_parameters(struct pl022 *pl022,
 				return -EINVAL;
 			}
 		} else {
-			if (chip_info->duplex != SSP_MICROWIRE_CHANNEL_FULL_DUPLEX)
+			if (chip_info->duplex != SSP_MICROWIRE_CHANNEL_FULL_DUPLEX) {
 				dev_err(&pl022->adev->dev,
 					"Microwire half duplex mode requested,"
 					" but this is only available in the"
 					" ST version of PL022\n");
-			return -EINVAL;
+				return -EINVAL;
+			}
 		}
 	}
 	return 0;
-- 
GitLab


From b8cb3f4ffa3ad0b4f0d62334aa6cda28e7f93881 Mon Sep 17 00:00:00 2001
From: Cyril Strejc <cyril.strejc@skoda.cz>
Date: Sun, 24 Oct 2021 22:14:25 +0200
Subject: [PATCH 1000/4878] net: multicast: calculate csum of looped-back and
 forwarded packets

[ Upstream commit 9122a70a6333705c0c35614ddc51c274ed1d3637 ]

During a testing of an user-space application which transmits UDP
multicast datagrams and utilizes multicast routing to send the UDP
datagrams out of defined network interfaces, I've found a multicast
router does not fill-in UDP checksum into locally produced, looped-back
and forwarded UDP datagrams, if an original output NIC the datagrams
are sent to has UDP TX checksum offload enabled.

The datagrams are sent malformed out of the NIC the datagrams have been
forwarded to.

It is because:

1. If TX checksum offload is enabled on the output NIC, UDP checksum
   is not calculated by kernel and is not filled into skb data.

2. dev_loopback_xmit(), which is called solely by
   ip_mc_finish_output(), sets skb->ip_summed = CHECKSUM_UNNECESSARY
   unconditionally.

3. Since 35fc92a9 ("[NET]: Allow forwarding of ip_summed except
   CHECKSUM_COMPLETE"), the ip_summed value is preserved during
   forwarding.

4. If ip_summed != CHECKSUM_PARTIAL, checksum is not calculated during
   a packet egress.

The minimum fix in dev_loopback_xmit():

1. Preserves skb->ip_summed CHECKSUM_PARTIAL. This is the
   case when the original output NIC has TX checksum offload enabled.
   The effects are:

     a) If the forwarding destination interface supports TX checksum
        offloading, the NIC driver is responsible to fill-in the
        checksum.

     b) If the forwarding destination interface does NOT support TX
        checksum offloading, checksums are filled-in by kernel before
        skb is submitted to the NIC driver.

     c) For local delivery, checksum validation is skipped as in the
        case of CHECKSUM_UNNECESSARY, thanks to skb_csum_unnecessary().

2. Translates ip_summed CHECKSUM_NONE to CHECKSUM_UNNECESSARY. It
   means, for CHECKSUM_NONE, the behavior is unmodified and is there
   to skip a looped-back packet local delivery checksum validation.

Signed-off-by: Cyril Strejc <cyril.strejc@skoda.cz>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/udp.h | 5 +++--
 net/core/dev.c    | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/net/udp.h b/include/net/udp.h
index 949ae14a54250..435cc009e6eaa 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -488,8 +488,9 @@ static inline struct sk_buff *udp_rcv_segment(struct sock *sk,
 	 * CHECKSUM_NONE in __udp_gso_segment. UDP GRO indeed builds partial
 	 * packets in udp_gro_complete_segment. As does UDP GSO, verified by
 	 * udp_send_skb. But when those packets are looped in dev_loopback_xmit
-	 * their ip_summed is set to CHECKSUM_UNNECESSARY. Reset in this
-	 * specific case, where PARTIAL is both correct and required.
+	 * their ip_summed CHECKSUM_NONE is changed to CHECKSUM_UNNECESSARY.
+	 * Reset in this specific case, where PARTIAL is both correct and
+	 * required.
 	 */
 	if (skb->pkt_type == PACKET_LOOPBACK)
 		skb->ip_summed = CHECKSUM_PARTIAL;
diff --git a/net/core/dev.c b/net/core/dev.c
index 6a4e0e3c59fec..e14294e9ba321 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3867,7 +3867,8 @@ int dev_loopback_xmit(struct net *net, struct sock *sk, struct sk_buff *skb)
 	skb_reset_mac_header(skb);
 	__skb_pull(skb, skb_network_offset(skb));
 	skb->pkt_type = PACKET_LOOPBACK;
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
+	if (skb->ip_summed == CHECKSUM_NONE)
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	WARN_ON(!skb_dst(skb));
 	skb_dst_force(skb);
 	netif_rx_ni(skb);
-- 
GitLab


From 4d41059b9e23bbb573fbf59c03334a138fbe55ef Mon Sep 17 00:00:00 2001
From: Walter Stoll <walter.stoll@duagon.com>
Date: Thu, 14 Oct 2021 12:22:29 +0200
Subject: [PATCH 1001/4878] watchdog: Fix OMAP watchdog early handling

[ Upstream commit cd004d8299f1dc6cfa6a4eea8f94cb45eaedf070 ]

TI's implementation does not service the watchdog even if the kernel
command line parameter omap_wdt.early_enable is set to 1. This patch
fixes the issue.

Signed-off-by: Walter Stoll <walter.stoll@duagon.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/88a8fe5229cd68fa0f1fd22f5d66666c1b7057a0.camel@duagon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/omap_wdt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 1616f93dfad7f..74d785b2b478f 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -268,8 +268,12 @@ static int omap_wdt_probe(struct platform_device *pdev)
 			wdev->wdog.bootstatus = WDIOF_CARDRESET;
 	}
 
-	if (!early_enable)
+	if (early_enable) {
+		omap_wdt_start(&wdev->wdog);
+		set_bit(WDOG_HW_RUNNING, &wdev->wdog.status);
+	} else {
 		omap_wdt_disable(wdev);
+	}
 
 	ret = watchdog_register_device(&wdev->wdog);
 	if (ret) {
-- 
GitLab


From 7d1fb5c12cc0c88159ebf946385141ed3019f009 Mon Sep 17 00:00:00 2001
From: Mario <awxkrnl@gmail.com>
Date: Tue, 26 Oct 2021 13:27:37 +0200
Subject: [PATCH 1002/4878] drm: panel-orientation-quirks: Add quirk for GPD
 Win3

[ Upstream commit 61b1d445f3bfe4c3ba4335ceeb7e8ba688fd31e2 ]

Fixes screen orientation for GPD Win 3 handheld gaming console.

Signed-off-by: Mario Risoldi <awxkrnl@gmail.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211026112737.9181-1-awxkrnl@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 30c17a76f49ae..e1b2ce4921ae7 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -191,6 +191,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_win2,
+	}, {	/* GPD Win 3 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1618-03")
+		},
+		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* I.T.Works TW891 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
-- 
GitLab


From c8270435cfb4c20992d3048fe1813b853399218f Mon Sep 17 00:00:00 2001
From: Naohiro Aota <naohiro.aota@wdc.com>
Date: Wed, 27 Oct 2021 01:51:27 +0900
Subject: [PATCH 1003/4878] block: schedule queue restart after
 BLK_STS_ZONE_RESOURCE

[ Upstream commit 9586e67b911c95ba158fcc247b230e9c2d718623 ]

When dispatching a zone append write request to a SCSI zoned block device,
if the target zone of the request is already locked, the device driver will
return BLK_STS_ZONE_RESOURCE and the request will be pushed back to the
hctx dipatch queue. The queue will be marked as RESTART in
dd_finish_request() and restarted in __blk_mq_free_request(). However, this
restart applies to the hctx of the completed request. If the requeued
request is on a different hctx, dispatch will no be retried until another
request is submitted or the next periodic queue run triggers, leading to up
to 30 seconds latency for the requeued request.

Fix this problem by scheduling a queue restart similarly to the
BLK_STS_RESOURCE case or when we cannot get the budget.

Also, consolidate the checks into the "need_resource" variable to simplify
the condition.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Niklas Cassel <Niklas.Cassel@wdc.com>
Link: https://lore.kernel.org/r/20211026165127.4151055-1-naohiro.aota@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-mq.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index eed9a4c1519df..69cc552c3dfc9 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1327,6 +1327,7 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list,
 	int errors, queued;
 	blk_status_t ret = BLK_STS_OK;
 	LIST_HEAD(zone_list);
+	bool needs_resource = false;
 
 	if (list_empty(list))
 		return false;
@@ -1372,6 +1373,8 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list,
 			queued++;
 			break;
 		case BLK_STS_RESOURCE:
+			needs_resource = true;
+			fallthrough;
 		case BLK_STS_DEV_RESOURCE:
 			blk_mq_handle_dev_resource(rq, list);
 			goto out;
@@ -1382,6 +1385,7 @@ bool blk_mq_dispatch_rq_list(struct blk_mq_hw_ctx *hctx, struct list_head *list,
 			 * accept.
 			 */
 			blk_mq_handle_zone_resource(rq, &zone_list);
+			needs_resource = true;
 			break;
 		default:
 			errors++;
@@ -1408,7 +1412,6 @@ out:
 		/* For non-shared tags, the RESTART check will suffice */
 		bool no_tag = prep == PREP_DISPATCH_NO_TAG &&
 			(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED);
-		bool no_budget_avail = prep == PREP_DISPATCH_NO_BUDGET;
 
 		blk_mq_release_budgets(q, nr_budgets);
 
@@ -1448,14 +1451,16 @@ out:
 		 * If driver returns BLK_STS_RESOURCE and SCHED_RESTART
 		 * bit is set, run queue after a delay to avoid IO stalls
 		 * that could otherwise occur if the queue is idle.  We'll do
-		 * similar if we couldn't get budget and SCHED_RESTART is set.
+		 * similar if we couldn't get budget or couldn't lock a zone
+		 * and SCHED_RESTART is set.
 		 */
 		needs_restart = blk_mq_sched_needs_restart(hctx);
+		if (prep == PREP_DISPATCH_NO_BUDGET)
+			needs_resource = true;
 		if (!needs_restart ||
 		    (no_tag && list_empty_careful(&hctx->dispatch_wait.entry)))
 			blk_mq_run_hw_queue(hctx, true);
-		else if (needs_restart && (ret == BLK_STS_RESOURCE ||
-					   no_budget_avail))
+		else if (needs_restart && needs_resource)
 			blk_mq_delay_run_hw_queue(hctx, BLK_MQ_RESOURCE_DELAY);
 
 		blk_mq_update_dispatch_busy(hctx, true);
-- 
GitLab


From ad6a2a1e566ff3996b07e20cb3d096fc4b81cd02 Mon Sep 17 00:00:00 2001
From: Amit Engel <amit.engel@dell.com>
Date: Wed, 27 Oct 2021 09:49:27 +0300
Subject: [PATCH 1004/4878] nvmet-tcp: fix header digest verification

[ Upstream commit 86aeda32b887cdaeb0f4b7bfc9971e36377181c7 ]

Pass the correct length to nvmet_tcp_verify_hdgst, which is the pdu
header length.  This fixes a wrong behaviour where header digest
verification passes although the digest is wrong.

Signed-off-by: Amit Engel <amit.engel@dell.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index b4ef7e9e8461f..58dc517fe8678 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -1084,7 +1084,7 @@ recv:
 	}
 
 	if (queue->hdr_digest &&
-	    nvmet_tcp_verify_hdgst(queue, &queue->pdu, queue->offset)) {
+	    nvmet_tcp_verify_hdgst(queue, &queue->pdu, hdr->hlen)) {
 		nvmet_tcp_fatal_error(queue); /* fatal */
 		return -EPROTO;
 	}
-- 
GitLab


From 9813218e96db4fbfd1dfae4d2bbd979d3031597f Mon Sep 17 00:00:00 2001
From: Janghyub Seo <jhyub06@gmail.com>
Date: Tue, 26 Oct 2021 07:12:42 +0000
Subject: [PATCH 1005/4878] r8169: Add device 10ec:8162 to driver r8169

[ Upstream commit 72f898ca0ab85fde6facf78b14d9f67a4a7b32d1 ]

This patch makes the driver r8169 pick up device Realtek Semiconductor Co.
, Ltd. Device [10ec:8162].

Signed-off-by: Janghyub Seo <jhyub06@gmail.com>
Suggested-by: Rushab Shah <rushabshah32@gmail.com>
Link: https://lore.kernel.org/r/1635231849296.1489250046.441294000@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/realtek/r8169_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 30be18bac8063..5eac3f494d9e9 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -157,6 +157,7 @@ static const struct pci_device_id rtl8169_pci_tbl[] = {
 	{ PCI_VDEVICE(REALTEK,	0x8129) },
 	{ PCI_VDEVICE(REALTEK,	0x8136), RTL_CFG_NO_GBIT },
 	{ PCI_VDEVICE(REALTEK,	0x8161) },
+	{ PCI_VDEVICE(REALTEK,	0x8162) },
 	{ PCI_VDEVICE(REALTEK,	0x8167) },
 	{ PCI_VDEVICE(REALTEK,	0x8168) },
 	{ PCI_VDEVICE(NCUBE,	0x8168) },
-- 
GitLab


From c9a7d5fe155245e396ac6a3ce3b84c069ee602fa Mon Sep 17 00:00:00 2001
From: Dongli Zhang <dongli.zhang@oracle.com>
Date: Tue, 26 Oct 2021 14:50:31 -0700
Subject: [PATCH 1006/4878] vmxnet3: do not stop tx queues after
 netif_device_detach()

[ Upstream commit 9159f102402a64ac85e676b75cc1f9c62c5b4b73 ]

The netif_device_detach() conditionally stops all tx queues if the queues
are running. There is no need to call netif_tx_stop_all_queues() again.

Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/vmxnet3/vmxnet3_drv.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 336504b7531d9..932a39945cc62 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3765,7 +3765,6 @@ vmxnet3_suspend(struct device *device)
 	vmxnet3_free_intr_resources(adapter);
 
 	netif_device_detach(netdev);
-	netif_tx_stop_all_queues(netdev);
 
 	/* Create wake-up filters. */
 	pmConf = adapter->pm_conf;
-- 
GitLab


From 2167a9a12cc9d246f9075a2fdf37618ff3032117 Mon Sep 17 00:00:00 2001
From: Yu Xiao <yu.xiao@corigine.com>
Date: Thu, 28 Oct 2021 12:00:36 +0200
Subject: [PATCH 1007/4878] nfp: bpf: relax prog rejection for mtu check
 through max_pkt_offset

[ Upstream commit 90a881fc352a953f1c8beb61977a2db0818157d4 ]

MTU change is refused whenever the value of new MTU is bigger than
the max packet bytes that fits in NFP Cluster Target Memory (CTM).
However, an eBPF program doesn't always need to access the whole
packet data.

The maximum direct packet access (DPA) offset has always been
caculated by verifier and stored in the max_pkt_offset field of prog
aux data.

Signed-off-by: Yu Xiao <yu.xiao@corigine.com>
Reviewed-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Reviewed-by: Niklas Soderlund <niklas.soderlund@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/netronome/nfp/bpf/main.c   | 16 +++++++++++-----
 drivers/net/ethernet/netronome/nfp/bpf/main.h   |  2 ++
 .../net/ethernet/netronome/nfp/bpf/offload.c    | 17 +++++++++++++----
 3 files changed, 26 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c
index 11c83a99b0140..f469950c72657 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -182,15 +182,21 @@ static int
 nfp_bpf_check_mtu(struct nfp_app *app, struct net_device *netdev, int new_mtu)
 {
 	struct nfp_net *nn = netdev_priv(netdev);
-	unsigned int max_mtu;
+	struct nfp_bpf_vnic *bv;
+	struct bpf_prog *prog;
 
 	if (~nn->dp.ctrl & NFP_NET_CFG_CTRL_BPF)
 		return 0;
 
-	max_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32;
-	if (new_mtu > max_mtu) {
-		nn_info(nn, "BPF offload active, MTU over %u not supported\n",
-			max_mtu);
+	if (nn->xdp_hw.prog) {
+		prog = nn->xdp_hw.prog;
+	} else {
+		bv = nn->app_priv;
+		prog = bv->tc_prog;
+	}
+
+	if (nfp_bpf_offload_check_mtu(nn, prog, new_mtu)) {
+		nn_info(nn, "BPF offload active, potential packet access beyond hardware packet boundary");
 		return -EBUSY;
 	}
 	return 0;
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.h b/drivers/net/ethernet/netronome/nfp/bpf/main.h
index fac9c6f9e197b..c74620fcc539c 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.h
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.h
@@ -560,6 +560,8 @@ bool nfp_is_subprog_start(struct nfp_insn_meta *meta);
 void nfp_bpf_jit_prepare(struct nfp_prog *nfp_prog);
 int nfp_bpf_jit(struct nfp_prog *prog);
 bool nfp_bpf_supported_opcode(u8 code);
+bool nfp_bpf_offload_check_mtu(struct nfp_net *nn, struct bpf_prog *prog,
+			       unsigned int mtu);
 
 int nfp_verify_insn(struct bpf_verifier_env *env, int insn_idx,
 		    int prev_insn_idx);
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/offload.c b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
index 53851853562c6..9d97cd281f18e 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
@@ -481,19 +481,28 @@ int nfp_bpf_event_output(struct nfp_app_bpf *bpf, const void *data,
 	return 0;
 }
 
+bool nfp_bpf_offload_check_mtu(struct nfp_net *nn, struct bpf_prog *prog,
+			       unsigned int mtu)
+{
+	unsigned int fw_mtu, pkt_off;
+
+	fw_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32;
+	pkt_off = min(prog->aux->max_pkt_offset, mtu);
+
+	return fw_mtu < pkt_off;
+}
+
 static int
 nfp_net_bpf_load(struct nfp_net *nn, struct bpf_prog *prog,
 		 struct netlink_ext_ack *extack)
 {
 	struct nfp_prog *nfp_prog = prog->aux->offload->dev_priv;
-	unsigned int fw_mtu, pkt_off, max_stack, max_prog_len;
+	unsigned int max_stack, max_prog_len;
 	dma_addr_t dma_addr;
 	void *img;
 	int err;
 
-	fw_mtu = nn_readb(nn, NFP_NET_CFG_BPF_INL_MTU) * 64 - 32;
-	pkt_off = min(prog->aux->max_pkt_offset, nn->dp.netdev->mtu);
-	if (fw_mtu < pkt_off) {
+	if (nfp_bpf_offload_check_mtu(nn, prog, nn->dp.netdev->mtu)) {
 		NL_SET_ERR_MSG_MOD(extack, "BPF offload not supported with potential packet access beyond HW packet split boundary");
 		return -EOPNOTSUPP;
 	}
-- 
GitLab


From 9b86eb2f34d1e3e47451777cd4bfd3754914ed66 Mon Sep 17 00:00:00 2001
From: Tony Lu <tonylu@linux.alibaba.com>
Date: Thu, 28 Oct 2021 15:13:45 +0800
Subject: [PATCH 1008/4878] net/smc: Fix smc_link->llc_testlink_time overflow

[ Upstream commit c4a146c7cf5e8ad76231523b174d161bf152c6e7 ]

The value of llc_testlink_time is set to the value stored in
net->ipv4.sysctl_tcp_keepalive_time when linkgroup init. The value of
sysctl_tcp_keepalive_time is already jiffies, so we don't need to
multiply by HZ, which would cause smc_link->llc_testlink_time overflow,
and test_link send flood.

Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_llc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index 2e7560eba9812..d8fe4e1f24d1f 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -1787,7 +1787,7 @@ void smc_llc_link_active(struct smc_link *link)
 			    link->smcibdev->ibdev->name, link->ibport);
 	link->state = SMC_LNK_ACTIVE;
 	if (link->lgr->llc_testlink_time) {
-		link->llc_testlink_time = link->lgr->llc_testlink_time * HZ;
+		link->llc_testlink_time = link->lgr->llc_testlink_time;
 		schedule_delayed_work(&link->llc_testlink_wrk,
 				      link->llc_testlink_time);
 	}
-- 
GitLab


From 0bfb1c1a16ffb12b765cdf1aa3ae2e818b986d89 Mon Sep 17 00:00:00 2001
From: Wen Gu <guwen@linux.alibaba.com>
Date: Thu, 28 Oct 2021 15:13:47 +0800
Subject: [PATCH 1009/4878] net/smc: Correct spelling mistake to TCPF_SYN_RECV

[ Upstream commit f3a3a0fe0b644582fa5d83dd94b398f99fc57914 ]

There should use TCPF_SYN_RECV instead of TCP_SYN_RECV.

Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 030d7f30b13fe..cc2af94e74507 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1018,7 +1018,7 @@ static void smc_connect_work(struct work_struct *work)
 	if (smc->clcsock->sk->sk_err) {
 		smc->sk.sk_err = smc->clcsock->sk->sk_err;
 	} else if ((1 << smc->clcsock->sk->sk_state) &
-					(TCPF_SYN_SENT | TCP_SYN_RECV)) {
+					(TCPF_SYN_SENT | TCPF_SYN_RECV)) {
 		rc = sk_stream_wait_connect(smc->clcsock->sk, &timeo);
 		if ((rc == -EPIPE) &&
 		    ((1 << smc->clcsock->sk->sk_state) &
-- 
GitLab


From a99da5b68080829982b07b12295646e101763528 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 6 Nov 2020 19:19:36 +0100
Subject: [PATCH 1010/4878] rds: stop using dmapool

[ Upstream commit 42f2611cc1738b201701e717246e11e86bef4e1e ]

RDMA ULPs should only perform DMA through the ib_dma_* API instead of
using the hidden dma_device directly.  In addition using the dma coherent
API family that dmapool is a part of can be very ineffcient on plaforms
that are not DMA coherent.  Switch to use slab allocations and the
ib_dma_* APIs instead.

Link: https://lore.kernel.org/r/20201106181941.1878556-6-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rds/ib.c      |  10 ----
 net/rds/ib.h      |   6 ---
 net/rds/ib_cm.c   | 128 ++++++++++++++++++++++++++++------------------
 net/rds/ib_recv.c |  18 +++++--
 net/rds/ib_send.c |   8 +++
 5 files changed, 101 insertions(+), 69 deletions(-)

diff --git a/net/rds/ib.c b/net/rds/ib.c
index deecbdcdae84e..24c9a9005a6fb 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -30,7 +30,6 @@
  * SOFTWARE.
  *
  */
-#include <linux/dmapool.h>
 #include <linux/kernel.h>
 #include <linux/in.h>
 #include <linux/if.h>
@@ -108,7 +107,6 @@ static void rds_ib_dev_free(struct work_struct *work)
 		rds_ib_destroy_mr_pool(rds_ibdev->mr_1m_pool);
 	if (rds_ibdev->pd)
 		ib_dealloc_pd(rds_ibdev->pd);
-	dma_pool_destroy(rds_ibdev->rid_hdrs_pool);
 
 	list_for_each_entry_safe(i_ipaddr, i_next, &rds_ibdev->ipaddr_list, list) {
 		list_del(&i_ipaddr->list);
@@ -191,14 +189,6 @@ static int rds_ib_add_one(struct ib_device *device)
 		rds_ibdev->pd = NULL;
 		goto put_dev;
 	}
-	rds_ibdev->rid_hdrs_pool = dma_pool_create(device->name,
-						   device->dma_device,
-						   sizeof(struct rds_header),
-						   L1_CACHE_BYTES, 0);
-	if (!rds_ibdev->rid_hdrs_pool) {
-		ret = -ENOMEM;
-		goto put_dev;
-	}
 
 	rds_ibdev->mr_1m_pool =
 		rds_ib_create_mr_pool(rds_ibdev, RDS_IB_MR_1M_POOL);
diff --git a/net/rds/ib.h b/net/rds/ib.h
index c23a11d9ad362..2ba71102b1f1f 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -246,7 +246,6 @@ struct rds_ib_device {
 	struct list_head	conn_list;
 	struct ib_device	*dev;
 	struct ib_pd		*pd;
-	struct dma_pool		*rid_hdrs_pool; /* RDS headers DMA pool */
 	u8			odp_capable:1;
 
 	unsigned int		max_mrs;
@@ -380,11 +379,6 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
 int rds_ib_cm_initiate_connect(struct rdma_cm_id *cm_id, bool isv6);
 void rds_ib_cm_connect_complete(struct rds_connection *conn,
 				struct rdma_cm_event *event);
-struct rds_header **rds_dma_hdrs_alloc(struct ib_device *ibdev,
-				       struct dma_pool *pool,
-				       dma_addr_t **dma_addrs, u32 num_hdrs);
-void rds_dma_hdrs_free(struct dma_pool *pool, struct rds_header **hdrs,
-		       dma_addr_t *dma_addrs, u32 num_hdrs);
 
 #define rds_ib_conn_error(conn, fmt...) \
 	__rds_ib_conn_error(conn, KERN_WARNING "RDS/IB: " fmt)
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index b36b60668b1da..f5cbe963cd8f7 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -30,7 +30,6 @@
  * SOFTWARE.
  *
  */
-#include <linux/dmapool.h>
 #include <linux/kernel.h>
 #include <linux/in.h>
 #include <linux/slab.h>
@@ -441,42 +440,87 @@ static inline void ibdev_put_vector(struct rds_ib_device *rds_ibdev, int index)
 	rds_ibdev->vector_load[index]--;
 }
 
+static void rds_dma_hdr_free(struct ib_device *dev, struct rds_header *hdr,
+		dma_addr_t dma_addr, enum dma_data_direction dir)
+{
+	ib_dma_unmap_single(dev, dma_addr, sizeof(*hdr), dir);
+	kfree(hdr);
+}
+
+static struct rds_header *rds_dma_hdr_alloc(struct ib_device *dev,
+		dma_addr_t *dma_addr, enum dma_data_direction dir)
+{
+	struct rds_header *hdr;
+
+	hdr = kzalloc_node(sizeof(*hdr), GFP_KERNEL, ibdev_to_node(dev));
+	if (!hdr)
+		return NULL;
+
+	*dma_addr = ib_dma_map_single(dev, hdr, sizeof(*hdr),
+				      DMA_BIDIRECTIONAL);
+	if (ib_dma_mapping_error(dev, *dma_addr)) {
+		kfree(hdr);
+		return NULL;
+	}
+
+	return hdr;
+}
+
+/* Free the DMA memory used to store struct rds_header.
+ *
+ * @dev: the RDS IB device
+ * @hdrs: pointer to the array storing DMA memory pointers
+ * @dma_addrs: pointer to the array storing DMA addresses
+ * @num_hdars: number of headers to free.
+ */
+static void rds_dma_hdrs_free(struct rds_ib_device *dev,
+		struct rds_header **hdrs, dma_addr_t *dma_addrs, u32 num_hdrs,
+		enum dma_data_direction dir)
+{
+	u32 i;
+
+	for (i = 0; i < num_hdrs; i++)
+		rds_dma_hdr_free(dev->dev, hdrs[i], dma_addrs[i], dir);
+	kvfree(hdrs);
+	kvfree(dma_addrs);
+}
+
+
 /* Allocate DMA coherent memory to be used to store struct rds_header for
  * sending/receiving packets.  The pointers to the DMA memory and the
  * associated DMA addresses are stored in two arrays.
  *
- * @ibdev: the IB device
- * @pool: the DMA memory pool
+ * @dev: the RDS IB device
  * @dma_addrs: pointer to the array for storing DMA addresses
  * @num_hdrs: number of headers to allocate
  *
  * It returns the pointer to the array storing the DMA memory pointers.  On
  * error, NULL pointer is returned.
  */
-struct rds_header **rds_dma_hdrs_alloc(struct ib_device *ibdev,
-				       struct dma_pool *pool,
-				       dma_addr_t **dma_addrs, u32 num_hdrs)
+static struct rds_header **rds_dma_hdrs_alloc(struct rds_ib_device *dev,
+		dma_addr_t **dma_addrs, u32 num_hdrs,
+		enum dma_data_direction dir)
 {
 	struct rds_header **hdrs;
 	dma_addr_t *hdr_daddrs;
 	u32 i;
 
 	hdrs = kvmalloc_node(sizeof(*hdrs) * num_hdrs, GFP_KERNEL,
-			     ibdev_to_node(ibdev));
+			     ibdev_to_node(dev->dev));
 	if (!hdrs)
 		return NULL;
 
 	hdr_daddrs = kvmalloc_node(sizeof(*hdr_daddrs) * num_hdrs, GFP_KERNEL,
-				   ibdev_to_node(ibdev));
+				   ibdev_to_node(dev->dev));
 	if (!hdr_daddrs) {
 		kvfree(hdrs);
 		return NULL;
 	}
 
 	for (i = 0; i < num_hdrs; i++) {
-		hdrs[i] = dma_pool_zalloc(pool, GFP_KERNEL, &hdr_daddrs[i]);
+		hdrs[i] = rds_dma_hdr_alloc(dev->dev, &hdr_daddrs[i], dir);
 		if (!hdrs[i]) {
-			rds_dma_hdrs_free(pool, hdrs, hdr_daddrs, i);
+			rds_dma_hdrs_free(dev, hdrs, hdr_daddrs, i, dir);
 			return NULL;
 		}
 	}
@@ -485,24 +529,6 @@ struct rds_header **rds_dma_hdrs_alloc(struct ib_device *ibdev,
 	return hdrs;
 }
 
-/* Free the DMA memory used to store struct rds_header.
- *
- * @pool: the DMA memory pool
- * @hdrs: pointer to the array storing DMA memory pointers
- * @dma_addrs: pointer to the array storing DMA addresses
- * @num_hdars: number of headers to free.
- */
-void rds_dma_hdrs_free(struct dma_pool *pool, struct rds_header **hdrs,
-		       dma_addr_t *dma_addrs, u32 num_hdrs)
-{
-	u32 i;
-
-	for (i = 0; i < num_hdrs; i++)
-		dma_pool_free(pool, hdrs[i], dma_addrs[i]);
-	kvfree(hdrs);
-	kvfree(dma_addrs);
-}
-
 /*
  * This needs to be very careful to not leave IS_ERR pointers around for
  * cleanup to trip over.
@@ -516,7 +542,6 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
 	struct rds_ib_device *rds_ibdev;
 	unsigned long max_wrs;
 	int ret, fr_queue_space;
-	struct dma_pool *pool;
 
 	/*
 	 * It's normal to see a null device if an incoming connection races
@@ -612,25 +637,26 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
 		goto recv_cq_out;
 	}
 
-	pool = rds_ibdev->rid_hdrs_pool;
-	ic->i_send_hdrs = rds_dma_hdrs_alloc(dev, pool, &ic->i_send_hdrs_dma,
-					     ic->i_send_ring.w_nr);
+	ic->i_send_hdrs = rds_dma_hdrs_alloc(rds_ibdev, &ic->i_send_hdrs_dma,
+					     ic->i_send_ring.w_nr,
+					     DMA_TO_DEVICE);
 	if (!ic->i_send_hdrs) {
 		ret = -ENOMEM;
 		rdsdebug("DMA send hdrs alloc failed\n");
 		goto qp_out;
 	}
 
-	ic->i_recv_hdrs = rds_dma_hdrs_alloc(dev, pool, &ic->i_recv_hdrs_dma,
-					     ic->i_recv_ring.w_nr);
+	ic->i_recv_hdrs = rds_dma_hdrs_alloc(rds_ibdev, &ic->i_recv_hdrs_dma,
+					     ic->i_recv_ring.w_nr,
+					     DMA_FROM_DEVICE);
 	if (!ic->i_recv_hdrs) {
 		ret = -ENOMEM;
 		rdsdebug("DMA recv hdrs alloc failed\n");
 		goto send_hdrs_dma_out;
 	}
 
-	ic->i_ack = dma_pool_zalloc(pool, GFP_KERNEL,
-				    &ic->i_ack_dma);
+	ic->i_ack = rds_dma_hdr_alloc(rds_ibdev->dev, &ic->i_ack_dma,
+				      DMA_TO_DEVICE);
 	if (!ic->i_ack) {
 		ret = -ENOMEM;
 		rdsdebug("DMA ack header alloc failed\n");
@@ -666,18 +692,19 @@ sends_out:
 	vfree(ic->i_sends);
 
 ack_dma_out:
-	dma_pool_free(pool, ic->i_ack, ic->i_ack_dma);
+	rds_dma_hdr_free(rds_ibdev->dev, ic->i_ack, ic->i_ack_dma,
+			 DMA_TO_DEVICE);
 	ic->i_ack = NULL;
 
 recv_hdrs_dma_out:
-	rds_dma_hdrs_free(pool, ic->i_recv_hdrs, ic->i_recv_hdrs_dma,
-			  ic->i_recv_ring.w_nr);
+	rds_dma_hdrs_free(rds_ibdev, ic->i_recv_hdrs, ic->i_recv_hdrs_dma,
+			  ic->i_recv_ring.w_nr, DMA_FROM_DEVICE);
 	ic->i_recv_hdrs = NULL;
 	ic->i_recv_hdrs_dma = NULL;
 
 send_hdrs_dma_out:
-	rds_dma_hdrs_free(pool, ic->i_send_hdrs, ic->i_send_hdrs_dma,
-			  ic->i_send_ring.w_nr);
+	rds_dma_hdrs_free(rds_ibdev, ic->i_send_hdrs, ic->i_send_hdrs_dma,
+			  ic->i_send_ring.w_nr, DMA_TO_DEVICE);
 	ic->i_send_hdrs = NULL;
 	ic->i_send_hdrs_dma = NULL;
 
@@ -1110,29 +1137,30 @@ void rds_ib_conn_path_shutdown(struct rds_conn_path *cp)
 		}
 
 		if (ic->rds_ibdev) {
-			struct dma_pool *pool;
-
-			pool = ic->rds_ibdev->rid_hdrs_pool;
-
 			/* then free the resources that ib callbacks use */
 			if (ic->i_send_hdrs) {
-				rds_dma_hdrs_free(pool, ic->i_send_hdrs,
+				rds_dma_hdrs_free(ic->rds_ibdev,
+						  ic->i_send_hdrs,
 						  ic->i_send_hdrs_dma,
-						  ic->i_send_ring.w_nr);
+						  ic->i_send_ring.w_nr,
+						  DMA_TO_DEVICE);
 				ic->i_send_hdrs = NULL;
 				ic->i_send_hdrs_dma = NULL;
 			}
 
 			if (ic->i_recv_hdrs) {
-				rds_dma_hdrs_free(pool, ic->i_recv_hdrs,
+				rds_dma_hdrs_free(ic->rds_ibdev,
+						  ic->i_recv_hdrs,
 						  ic->i_recv_hdrs_dma,
-						  ic->i_recv_ring.w_nr);
+						  ic->i_recv_ring.w_nr,
+						  DMA_FROM_DEVICE);
 				ic->i_recv_hdrs = NULL;
 				ic->i_recv_hdrs_dma = NULL;
 			}
 
 			if (ic->i_ack) {
-				dma_pool_free(pool, ic->i_ack, ic->i_ack_dma);
+				rds_dma_hdr_free(ic->rds_ibdev->dev, ic->i_ack,
+						 ic->i_ack_dma, DMA_TO_DEVICE);
 				ic->i_ack = NULL;
 			}
 		} else {
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 3cffcec5fb371..6fdedd9dbbc28 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -662,10 +662,16 @@ static void rds_ib_send_ack(struct rds_ib_connection *ic, unsigned int adv_credi
 	seq = rds_ib_get_ack(ic);
 
 	rdsdebug("send_ack: ic %p ack %llu\n", ic, (unsigned long long) seq);
+
+	ib_dma_sync_single_for_cpu(ic->rds_ibdev->dev, ic->i_ack_dma,
+				   sizeof(*hdr), DMA_TO_DEVICE);
 	rds_message_populate_header(hdr, 0, 0, 0);
 	hdr->h_ack = cpu_to_be64(seq);
 	hdr->h_credit = adv_credits;
 	rds_message_make_checksum(hdr);
+	ib_dma_sync_single_for_device(ic->rds_ibdev->dev, ic->i_ack_dma,
+				      sizeof(*hdr), DMA_TO_DEVICE);
+
 	ic->i_ack_queued = jiffies;
 
 	ret = ib_post_send(ic->i_cm_id->qp, &ic->i_ack_wr, NULL);
@@ -845,6 +851,7 @@ static void rds_ib_process_recv(struct rds_connection *conn,
 	struct rds_ib_connection *ic = conn->c_transport_data;
 	struct rds_ib_incoming *ibinc = ic->i_ibinc;
 	struct rds_header *ihdr, *hdr;
+	dma_addr_t dma_addr = ic->i_recv_hdrs_dma[recv - ic->i_recvs];
 
 	/* XXX shut down the connection if port 0,0 are seen? */
 
@@ -863,6 +870,8 @@ static void rds_ib_process_recv(struct rds_connection *conn,
 
 	ihdr = ic->i_recv_hdrs[recv - ic->i_recvs];
 
+	ib_dma_sync_single_for_cpu(ic->rds_ibdev->dev, dma_addr,
+				   sizeof(*ihdr), DMA_FROM_DEVICE);
 	/* Validate the checksum. */
 	if (!rds_message_verify_checksum(ihdr)) {
 		rds_ib_conn_error(conn, "incoming message "
@@ -870,7 +879,7 @@ static void rds_ib_process_recv(struct rds_connection *conn,
 		       "forcing a reconnect\n",
 		       &conn->c_faddr);
 		rds_stats_inc(s_recv_drop_bad_checksum);
-		return;
+		goto done;
 	}
 
 	/* Process the ACK sequence which comes with every packet */
@@ -899,7 +908,7 @@ static void rds_ib_process_recv(struct rds_connection *conn,
 		 */
 		rds_ib_frag_free(ic, recv->r_frag);
 		recv->r_frag = NULL;
-		return;
+		goto done;
 	}
 
 	/*
@@ -933,7 +942,7 @@ static void rds_ib_process_recv(struct rds_connection *conn,
 		    hdr->h_dport != ihdr->h_dport) {
 			rds_ib_conn_error(conn,
 				"fragment header mismatch; forcing reconnect\n");
-			return;
+			goto done;
 		}
 	}
 
@@ -965,6 +974,9 @@ static void rds_ib_process_recv(struct rds_connection *conn,
 
 		rds_inc_put(&ibinc->ii_inc);
 	}
+done:
+	ib_dma_sync_single_for_device(ic->rds_ibdev->dev, dma_addr,
+				      sizeof(*ihdr), DMA_FROM_DEVICE);
 }
 
 void rds_ib_recv_cqe_handler(struct rds_ib_connection *ic,
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index dfe778220657a..92b4a8689aae7 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -638,6 +638,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 		send->s_sge[0].length = sizeof(struct rds_header);
 		send->s_sge[0].lkey = ic->i_pd->local_dma_lkey;
 
+		ib_dma_sync_single_for_cpu(ic->rds_ibdev->dev,
+					   ic->i_send_hdrs_dma[pos],
+					   sizeof(struct rds_header),
+					   DMA_TO_DEVICE);
 		memcpy(ic->i_send_hdrs[pos], &rm->m_inc.i_hdr,
 		       sizeof(struct rds_header));
 
@@ -688,6 +692,10 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 			adv_credits = 0;
 			rds_ib_stats_inc(s_ib_tx_credit_updates);
 		}
+		ib_dma_sync_single_for_device(ic->rds_ibdev->dev,
+					      ic->i_send_hdrs_dma[pos],
+					      sizeof(struct rds_header),
+					      DMA_TO_DEVICE);
 
 		if (prev)
 			prev->s_wr.next = &send->s_wr;
-- 
GitLab


From 8992aab294cb7c70d430e7ad6671ccb0002de5b7 Mon Sep 17 00:00:00 2001
From: Li Zhang <zhanglikernel@gmail.com>
Date: Tue, 5 Oct 2021 01:15:33 +0800
Subject: [PATCH 1011/4878] btrfs: clear MISSING device status bit in
 btrfs_close_one_device
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 5d03dbebba2594d2e6fbf3b5dd9060c5a835de3b upstream.

Reported bug: https://github.com/kdave/btrfs-progs/issues/389

There's a problem with scrub reporting aborted status but returning
error code 0, on a filesystem with missing and readded device.

Roughly these steps:

- mkfs -d raid1 dev1 dev2
- fill with data
- unmount
- make dev1 disappear
- mount -o degraded
- copy more data
- make dev1 appear again

Running scrub afterwards reports that the command was aborted, but the
system log message says the exit code was 0.

It seems that the cause of the error is decrementing
fs_devices->missing_devices but not clearing device->dev_state.  Every
time we umount filesystem, it would call close_ctree, And it would
eventually involve btrfs_close_one_device to close the device, but it
only decrements fs_devices->missing_devices but does not clear the
device BTRFS_DEV_STATE_MISSING bit. Worse, this bug will cause Integer
Overflow, because every time umount, fs_devices->missing_devices will
decrease. If fs_devices->missing_devices value hit 0, it would overflow.

With added debugging:

   loop1: detected capacity change from 0 to 20971520
   BTRFS: device fsid 56ad51f1-5523-463b-8547-c19486c51ebb devid 1 transid 21 /dev/loop1 scanned by systemd-udevd (2311)
   loop2: detected capacity change from 0 to 20971520
   BTRFS: device fsid 56ad51f1-5523-463b-8547-c19486c51ebb devid 2 transid 17 /dev/loop2 scanned by systemd-udevd (2313)
   BTRFS info (device loop1): flagging fs with big metadata feature
   BTRFS info (device loop1): allowing degraded mounts
   BTRFS info (device loop1): using free space tree
   BTRFS info (device loop1): has skinny extents
   BTRFS info (device loop1):  before clear_missing.00000000f706684d /dev/loop1 0
   BTRFS warning (device loop1): devid 2 uuid 6635ac31-56dd-4852-873b-c60f5e2d53d2 is missing
   BTRFS info (device loop1):  before clear_missing.0000000000000000 /dev/loop2 1
   BTRFS info (device loop1): flagging fs with big metadata feature
   BTRFS info (device loop1): allowing degraded mounts
   BTRFS info (device loop1): using free space tree
   BTRFS info (device loop1): has skinny extents
   BTRFS info (device loop1):  before clear_missing.00000000f706684d /dev/loop1 0
   BTRFS warning (device loop1): devid 2 uuid 6635ac31-56dd-4852-873b-c60f5e2d53d2 is missing
   BTRFS info (device loop1):  before clear_missing.0000000000000000 /dev/loop2 0
   BTRFS info (device loop1): flagging fs with big metadata feature
   BTRFS info (device loop1): allowing degraded mounts
   BTRFS info (device loop1): using free space tree
   BTRFS info (device loop1): has skinny extents
   BTRFS info (device loop1):  before clear_missing.00000000f706684d /dev/loop1 18446744073709551615
   BTRFS warning (device loop1): devid 2 uuid 6635ac31-56dd-4852-873b-c60f5e2d53d2 is missing
   BTRFS info (device loop1):  before clear_missing.0000000000000000 /dev/loop2 18446744073709551615

If fs_devices->missing_devices is 0, next time it would be 18446744073709551615

After apply this patch, the fs_devices->missing_devices seems to be
right:

  $ truncate -s 10g test1
  $ truncate -s 10g test2
  $ losetup /dev/loop1 test1
  $ losetup /dev/loop2 test2
  $ mkfs.btrfs -draid1 -mraid1 /dev/loop1 /dev/loop2 -f
  $ losetup -d /dev/loop2
  $ mount -o degraded /dev/loop1 /mnt/1
  $ umount /mnt/1
  $ mount -o degraded /dev/loop1 /mnt/1
  $ umount /mnt/1
  $ mount -o degraded /dev/loop1 /mnt/1
  $ umount /mnt/1
  $ dmesg

   loop1: detected capacity change from 0 to 20971520
   loop2: detected capacity change from 0 to 20971520
   BTRFS: device fsid 15aa1203-98d3-4a66-bcae-ca82f629c2cd devid 1 transid 5 /dev/loop1 scanned by mkfs.btrfs (1863)
   BTRFS: device fsid 15aa1203-98d3-4a66-bcae-ca82f629c2cd devid 2 transid 5 /dev/loop2 scanned by mkfs.btrfs (1863)
   BTRFS info (device loop1): flagging fs with big metadata feature
   BTRFS info (device loop1): allowing degraded mounts
   BTRFS info (device loop1): disk space caching is enabled
   BTRFS info (device loop1): has skinny extents
   BTRFS info (device loop1):  before clear_missing.00000000975bd577 /dev/loop1 0
   BTRFS warning (device loop1): devid 2 uuid 8b333791-0b3f-4f57-b449-1c1ab6b51f38 is missing
   BTRFS info (device loop1):  before clear_missing.0000000000000000 /dev/loop2 1
   BTRFS info (device loop1): checking UUID tree
   BTRFS info (device loop1): flagging fs with big metadata feature
   BTRFS info (device loop1): allowing degraded mounts
   BTRFS info (device loop1): disk space caching is enabled
   BTRFS info (device loop1): has skinny extents
   BTRFS info (device loop1):  before clear_missing.00000000975bd577 /dev/loop1 0
   BTRFS warning (device loop1): devid 2 uuid 8b333791-0b3f-4f57-b449-1c1ab6b51f38 is missing
   BTRFS info (device loop1):  before clear_missing.0000000000000000 /dev/loop2 1
   BTRFS info (device loop1): flagging fs with big metadata feature
   BTRFS info (device loop1): allowing degraded mounts
   BTRFS info (device loop1): disk space caching is enabled
   BTRFS info (device loop1): has skinny extents
   BTRFS info (device loop1):  before clear_missing.00000000975bd577 /dev/loop1 0
   BTRFS warning (device loop1): devid 2 uuid 8b333791-0b3f-4f57-b449-1c1ab6b51f38 is missing
   BTRFS info (device loop1):  before clear_missing.0000000000000000 /dev/loop2 1

CC: stable@vger.kernel.org # 4.19+
Signed-off-by: Li Zhang <zhanglikernel@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/volumes.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 593e0c6d6b44e..8946355dfe448 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1133,8 +1133,10 @@ static void btrfs_close_one_device(struct btrfs_device *device)
 	if (device->devid == BTRFS_DEV_REPLACE_DEVID)
 		clear_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state);
 
-	if (test_bit(BTRFS_DEV_STATE_MISSING, &device->dev_state))
+	if (test_bit(BTRFS_DEV_STATE_MISSING, &device->dev_state)) {
+		clear_bit(BTRFS_DEV_STATE_MISSING, &device->dev_state);
 		fs_devices->missing_devices--;
+	}
 
 	btrfs_close_bdev(device);
 	if (device->bdev) {
-- 
GitLab


From b406439afe734da8bbd15b7dcaaa297c77a98905 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Thu, 14 Oct 2021 17:26:04 +0100
Subject: [PATCH 1012/4878] btrfs: fix lost error handling when replaying
 directory deletes

commit 10adb1152d957a4d570ad630f93a88bb961616c1 upstream.

At replay_dir_deletes(), if find_dir_range() returns an error we break out
of the main while loop and then assign a value of 0 (success) to the 'ret'
variable, resulting in completely ignoring that an error happened. Fix
that by jumping to the 'out' label when find_dir_range() returns an error
(negative value).

CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 3b93a98fd5449..4a5a3ae0acaae 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2466,7 +2466,9 @@ again:
 		else {
 			ret = find_dir_range(log, path, dirid, key_type,
 					     &range_start, &range_end);
-			if (ret != 0)
+			if (ret < 0)
+				goto out;
+			else if (ret > 0)
 				break;
 		}
 
-- 
GitLab


From b4a4c9dc4407ae77ebf4ad8bdf9ecf57e29658b4 Mon Sep 17 00:00:00 2001
From: Anand Jain <anand.jain@oracle.com>
Date: Tue, 19 Oct 2021 18:43:38 +0800
Subject: [PATCH 1013/4878] btrfs: call btrfs_check_rw_degradable only if there
 is a missing device

commit 5c78a5e7aa835c4f08a7c90fe02d19f95a776f29 upstream.

In open_ctree() in btrfs_check_rw_degradable() [1], we check each block
group individually if at least the minimum number of devices is available
for that profile. If all the devices are available, then we don't have to
check degradable.

[1]
open_ctree()
::
3559 if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info, NULL)) {

Also before calling btrfs_check_rw_degradable() in open_ctee() at the
line number shown below [2] we call btrfs_read_chunk_tree() and down to
add_missing_dev() to record number of missing devices.

[2]
open_ctree()
::
3454         ret = btrfs_read_chunk_tree(fs_info);

btrfs_read_chunk_tree()
  read_one_chunk() / read_one_dev()
    add_missing_dev()

So, check if there is any missing device before btrfs_check_rw_degradable()
in open_ctree().

Also, with this the mount command could save ~16ms.[3] in the most
common case, that is no device is missing.

[3]
 1) * 16934.96 us | btrfs_check_rw_degradable [btrfs]();

CC: stable@vger.kernel.org # 4.19+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/disk-io.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ef7df2141f34f..9051bb47cbdd9 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3223,7 +3223,8 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
 		goto fail_sysfs;
 	}
 
-	if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info, NULL)) {
+	if (!sb_rdonly(sb) && fs_info->fs_devices->missing_devices &&
+	    !btrfs_check_rw_degradable(fs_info, NULL)) {
 		btrfs_warn(fs_info,
 		"writable mount is not allowed due to too many missing devices");
 		goto fail_sysfs;
-- 
GitLab


From 2f65b76c444587ca1033a9af1ce60766ac910628 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Fri, 8 Oct 2021 17:11:05 -0700
Subject: [PATCH 1014/4878] KVM: VMX: Unregister posted interrupt wakeup
 handler on hardware unsetup

commit ec5a4919fa7b7d8c7a2af1c7e799b1fe4be84343 upstream.

Unregister KVM's posted interrupt wakeup handler during unsetup so that a
spurious interrupt that arrives after kvm_intel.ko is unloaded doesn't
call into freed memory.

Fixes: bf9f6ac8d749 ("KVM: Update Posted-Interrupts Descriptor when vCPU is blocked")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211009001107.3936588-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/vmx.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index f77d98973782b..31b4452c931ad 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7586,6 +7586,8 @@ static void vmx_migrate_timers(struct kvm_vcpu *vcpu)
 
 static void hardware_unsetup(void)
 {
+	kvm_set_posted_intr_wakeup_handler(NULL);
+
 	if (nested)
 		nested_vmx_hardware_unsetup();
 
@@ -7877,8 +7879,6 @@ static __init int hardware_setup(void)
 		vmx_x86_ops.request_immediate_exit = __kvm_request_immediate_exit;
 	}
 
-	kvm_set_posted_intr_wakeup_handler(pi_wakeup_handler);
-
 	kvm_mce_cap_supported |= MCG_LMCE_P;
 
 	if (pt_mode != PT_MODE_SYSTEM && pt_mode != PT_MODE_HOST_GUEST)
@@ -7900,6 +7900,9 @@ static __init int hardware_setup(void)
 	r = alloc_kvm_area();
 	if (r)
 		nested_vmx_hardware_unsetup();
+
+	kvm_set_posted_intr_wakeup_handler(pi_wakeup_handler);
+
 	return r;
 }
 
-- 
GitLab


From a09a5f4c075d0c91d040d58b8a15d08b5cd94943 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Tue, 14 Sep 2021 23:40:27 +0900
Subject: [PATCH 1015/4878] ia64: kprobes: Fix to pass correct trampoline
 address to the handler

commit a7fe2378454cf46cd5e2776d05e72bbe8f0a468c upstream.

The following commit:

   Commit e792ff804f49 ("ia64: kprobes: Use generic kretprobe trampoline handler")

Passed the wrong trampoline address to __kretprobe_trampoline_handler(): it
passes the descriptor address instead of function entry address.

Pass the right parameter.

Also use correct symbol dereference function to get the function address
from 'kretprobe_trampoline' - an IA64 special.

Link: https://lkml.kernel.org/r/163163042696.489837.12551102356265354730.stgit@devnote2

Fixes: e792ff804f49 ("ia64: kprobes: Use generic kretprobe trampoline handler")
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: X86 ML <x86@kernel.org>
Cc: Daniel Xu <dxu@dxuuu.xyz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Paul McKenney <paulmck@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/ia64/kernel/kprobes.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index fc1ff8a4d7de6..ca4b4fa45aef5 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -398,7 +398,8 @@ static void kretprobe_trampoline(void)
 
 int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
 {
-	regs->cr_iip = __kretprobe_trampoline_handler(regs, kretprobe_trampoline, NULL);
+	regs->cr_iip = __kretprobe_trampoline_handler(regs,
+		dereference_function_descriptor(kretprobe_trampoline), NULL);
 	/*
 	 * By returning a non-zero value, we are telling
 	 * kprobe_handler() that we don't want the post_handler
@@ -414,7 +415,7 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,
 	ri->fp = NULL;
 
 	/* Replace the return addr with trampoline addr */
-	regs->b0 = ((struct fnptr *)kretprobe_trampoline)->ip;
+	regs->b0 = (unsigned long)dereference_function_descriptor(kretprobe_trampoline);
 }
 
 /* Check the instruction in the slot is break */
@@ -918,14 +919,14 @@ static struct kprobe trampoline_p = {
 int __init arch_init_kprobes(void)
 {
 	trampoline_p.addr =
-		(kprobe_opcode_t *)((struct fnptr *)kretprobe_trampoline)->ip;
+		dereference_function_descriptor(kretprobe_trampoline);
 	return register_kprobe(&trampoline_p);
 }
 
 int __kprobes arch_trampoline_kprobe(struct kprobe *p)
 {
 	if (p->addr ==
-		(kprobe_opcode_t *)((struct fnptr *)kretprobe_trampoline)->ip)
+		dereference_function_descriptor(kretprobe_trampoline))
 		return 1;
 
 	return 0;
-- 
GitLab


From db04fb4111e6f5cf1518c7a4718ccde1756f909e Mon Sep 17 00:00:00 2001
From: Ondrej Mosnacek <omosnace@redhat.com>
Date: Wed, 28 Jul 2021 16:03:13 +0200
Subject: [PATCH 1016/4878] selinux: fix race condition when computing ocontext
 SIDs

commit cbfcd13be5cb2a07868afe67520ed181956579a7 upstream.

Current code contains a lot of racy patterns when converting an
ocontext's context structure to an SID. This is being done in a "lazy"
fashion, such that the SID is looked up in the SID table only when it's
first needed and then cached in the "sid" field of the ocontext
structure. However, this is done without any locking or memory barriers
and is thus unsafe.

Between commits 24ed7fdae669 ("selinux: use separate table for initial
SID lookup") and 66f8e2f03c02 ("selinux: sidtab reverse lookup hash
table"), this race condition lead to an actual observable bug, because a
pointer to the shared sid field was passed directly to
sidtab_context_to_sid(), which was using this location to also store an
intermediate value, which could have been read by other threads and
interpreted as an SID. In practice this caused e.g. new mounts to get a
wrong (seemingly random) filesystem context, leading to strange denials.
This bug has been spotted in the wild at least twice, see [1] and [2].

Fix the race condition by making all the racy functions use a common
helper that ensures the ocontext::sid accesses are made safely using the
appropriate SMP constructs.

Note that security_netif_sid() was populating the sid field of both
contexts stored in the ocontext, but only the first one was actually
used. The SELinux wiki's documentation on the "netifcon" policy
statement [3] suggests that using only the first context is intentional.
I kept only the handling of the first context here, as there is really
no point in doing the SID lookup for the unused one.

I wasn't able to reproduce the bug mentioned above on any kernel that
includes commit 66f8e2f03c02, even though it has been reported that the
issue occurs with that commit, too, just less frequently. Thus, I wasn't
able to verify that this patch fixes the issue, but it makes sense to
avoid the race condition regardless.

[1] https://github.com/containers/container-selinux/issues/89
[2] https://lists.fedoraproject.org/archives/list/selinux@lists.fedoraproject.org/thread/6DMTAMHIOAOEMUAVTULJD45JZU7IBAFM/
[3] https://selinuxproject.org/page/NetworkStatements#netifcon

Cc: stable@vger.kernel.org
Cc: Xinjie Zheng <xinjie@google.com>
Reported-by: Sujithra Periasamy <sujithra@google.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/selinux/ss/services.c | 162 ++++++++++++++++-----------------
 1 file changed, 77 insertions(+), 85 deletions(-)

diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index fbdbfb5aa3707..31d631fa846ef 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2368,6 +2368,43 @@ err_policy:
 	return rc;
 }
 
+/**
+ * ocontext_to_sid - Helper to safely get sid for an ocontext
+ * @sidtab: SID table
+ * @c: ocontext structure
+ * @index: index of the context entry (0 or 1)
+ * @out_sid: pointer to the resulting SID value
+ *
+ * For all ocontexts except OCON_ISID the SID fields are populated
+ * on-demand when needed. Since updating the SID value is an SMP-sensitive
+ * operation, this helper must be used to do that safely.
+ *
+ * WARNING: This function may return -ESTALE, indicating that the caller
+ * must retry the operation after re-acquiring the policy pointer!
+ */
+static int ocontext_to_sid(struct sidtab *sidtab, struct ocontext *c,
+			   size_t index, u32 *out_sid)
+{
+	int rc;
+	u32 sid;
+
+	/* Ensure the associated sidtab entry is visible to this thread. */
+	sid = smp_load_acquire(&c->sid[index]);
+	if (!sid) {
+		rc = sidtab_context_to_sid(sidtab, &c->context[index], &sid);
+		if (rc)
+			return rc;
+
+		/*
+		 * Ensure the new sidtab entry is visible to other threads
+		 * when they see the SID.
+		 */
+		smp_store_release(&c->sid[index], sid);
+	}
+	*out_sid = sid;
+	return 0;
+}
+
 /**
  * security_port_sid - Obtain the SID for a port.
  * @protocol: protocol number
@@ -2405,17 +2442,13 @@ retry:
 	}
 
 	if (c) {
-		if (!c->sid[0]) {
-			rc = sidtab_context_to_sid(sidtab, &c->context[0],
-						   &c->sid[0]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
+		rc = ocontext_to_sid(sidtab, c, 0, out_sid);
+		if (rc == -ESTALE) {
+			rcu_read_unlock();
+			goto retry;
 		}
-		*out_sid = c->sid[0];
+		if (rc)
+			goto out;
 	} else {
 		*out_sid = SECINITSID_PORT;
 	}
@@ -2463,18 +2496,13 @@ retry:
 	}
 
 	if (c) {
-		if (!c->sid[0]) {
-			rc = sidtab_context_to_sid(sidtab,
-						   &c->context[0],
-						   &c->sid[0]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
+		rc = ocontext_to_sid(sidtab, c, 0, out_sid);
+		if (rc == -ESTALE) {
+			rcu_read_unlock();
+			goto retry;
 		}
-		*out_sid = c->sid[0];
+		if (rc)
+			goto out;
 	} else
 		*out_sid = SECINITSID_UNLABELED;
 
@@ -2522,17 +2550,13 @@ retry:
 	}
 
 	if (c) {
-		if (!c->sid[0]) {
-			rc = sidtab_context_to_sid(sidtab, &c->context[0],
-						   &c->sid[0]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
+		rc = ocontext_to_sid(sidtab, c, 0, out_sid);
+		if (rc == -ESTALE) {
+			rcu_read_unlock();
+			goto retry;
 		}
-		*out_sid = c->sid[0];
+		if (rc)
+			goto out;
 	} else
 		*out_sid = SECINITSID_UNLABELED;
 
@@ -2575,25 +2599,13 @@ retry:
 	}
 
 	if (c) {
-		if (!c->sid[0] || !c->sid[1]) {
-			rc = sidtab_context_to_sid(sidtab, &c->context[0],
-						   &c->sid[0]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
-			rc = sidtab_context_to_sid(sidtab, &c->context[1],
-						   &c->sid[1]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
+		rc = ocontext_to_sid(sidtab, c, 0, if_sid);
+		if (rc == -ESTALE) {
+			rcu_read_unlock();
+			goto retry;
 		}
-		*if_sid = c->sid[0];
+		if (rc)
+			goto out;
 	} else
 		*if_sid = SECINITSID_NETIF;
 
@@ -2684,18 +2696,13 @@ retry:
 	}
 
 	if (c) {
-		if (!c->sid[0]) {
-			rc = sidtab_context_to_sid(sidtab,
-						   &c->context[0],
-						   &c->sid[0]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
+		rc = ocontext_to_sid(sidtab, c, 0, out_sid);
+		if (rc == -ESTALE) {
+			rcu_read_unlock();
+			goto retry;
 		}
-		*out_sid = c->sid[0];
+		if (rc)
+			goto out;
 	} else {
 		*out_sid = SECINITSID_NODE;
 	}
@@ -2859,7 +2866,7 @@ static inline int __security_genfs_sid(struct selinux_policy *policy,
 	u16 sclass;
 	struct genfs *genfs;
 	struct ocontext *c;
-	int rc, cmp = 0;
+	int cmp = 0;
 
 	while (path[0] == '/' && path[1] == '/')
 		path++;
@@ -2873,9 +2880,8 @@ static inline int __security_genfs_sid(struct selinux_policy *policy,
 			break;
 	}
 
-	rc = -ENOENT;
 	if (!genfs || cmp)
-		goto out;
+		return -ENOENT;
 
 	for (c = genfs->head; c; c = c->next) {
 		len = strlen(c->u.name);
@@ -2884,20 +2890,10 @@ static inline int __security_genfs_sid(struct selinux_policy *policy,
 			break;
 	}
 
-	rc = -ENOENT;
 	if (!c)
-		goto out;
-
-	if (!c->sid[0]) {
-		rc = sidtab_context_to_sid(sidtab, &c->context[0], &c->sid[0]);
-		if (rc)
-			goto out;
-	}
+		return -ENOENT;
 
-	*sid = c->sid[0];
-	rc = 0;
-out:
-	return rc;
+	return ocontext_to_sid(sidtab, c, 0, sid);
 }
 
 /**
@@ -2980,17 +2976,13 @@ retry:
 
 	if (c) {
 		sbsec->behavior = c->v.behavior;
-		if (!c->sid[0]) {
-			rc = sidtab_context_to_sid(sidtab, &c->context[0],
-						   &c->sid[0]);
-			if (rc == -ESTALE) {
-				rcu_read_unlock();
-				goto retry;
-			}
-			if (rc)
-				goto out;
+		rc = ocontext_to_sid(sidtab, c, 0, &sbsec->sid);
+		if (rc == -ESTALE) {
+			rcu_read_unlock();
+			goto retry;
 		}
-		sbsec->sid = c->sid[0];
+		if (rc)
+			goto out;
 	} else {
 		rc = __security_genfs_sid(policy, fstype, "/",
 					SECCLASS_DIR, &sbsec->sid);
-- 
GitLab


From 5b7e3bb16310e597aac1d35f1bf260143e8d5def Mon Sep 17 00:00:00 2001
From: Zev Weiss <zev@bewilderbeest.net>
Date: Tue, 28 Sep 2021 02:22:35 -0700
Subject: [PATCH 1017/4878] hwmon: (pmbus/lm25066) Add offset coefficients

commit ae59dc455a78fb73034dd1fbb337d7e59c27cbd8 upstream.

With the exception of the lm5066i, all the devices handled by this
driver had been missing their offset ('b') coefficients for direct
format readings.

Cc: stable@vger.kernel.org
Fixes: 58615a94f6a1 ("hwmon: (pmbus/lm25066) Add support for LM25056")
Fixes: e53e6497fc9f ("hwmon: (pmbus/lm25066) Refactor device specific coefficients")
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Link: https://lore.kernel.org/r/20210928092242.30036-2-zev@bewilderbeest.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/pmbus/lm25066.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index 429172a42902c..d14f923b3740d 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -55,22 +55,27 @@ static struct __coeff lm25066_coeff[6][PSC_NUM_CLASSES + 2] = {
 	[lm25056] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 16296,
+			.b = 1343,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN] = {
 			.m = 13797,
+			.b = -1833,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN_L] = {
 			.m = 6726,
+			.b = -537,
 			.R = -2,
 		},
 		[PSC_POWER] = {
 			.m = 5501,
+			.b = -2908,
 			.R = -3,
 		},
 		[PSC_POWER_L] = {
 			.m = 26882,
+			.b = -5646,
 			.R = -4,
 		},
 		[PSC_TEMPERATURE] = {
@@ -82,26 +87,32 @@ static struct __coeff lm25066_coeff[6][PSC_NUM_CLASSES + 2] = {
 	[lm25066] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 22070,
+			.b = -1800,
 			.R = -2,
 		},
 		[PSC_VOLTAGE_OUT] = {
 			.m = 22070,
+			.b = -1800,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN] = {
 			.m = 13661,
+			.b = -5200,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN_L] = {
 			.m = 6852,
+			.b = -3100,
 			.R = -2,
 		},
 		[PSC_POWER] = {
 			.m = 736,
+			.b = -3300,
 			.R = -2,
 		},
 		[PSC_POWER_L] = {
 			.m = 369,
+			.b = -1900,
 			.R = -2,
 		},
 		[PSC_TEMPERATURE] = {
@@ -111,26 +122,32 @@ static struct __coeff lm25066_coeff[6][PSC_NUM_CLASSES + 2] = {
 	[lm5064] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 4611,
+			.b = -642,
 			.R = -2,
 		},
 		[PSC_VOLTAGE_OUT] = {
 			.m = 4621,
+			.b = 423,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN] = {
 			.m = 10742,
+			.b = 1552,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN_L] = {
 			.m = 5456,
+			.b = 2118,
 			.R = -2,
 		},
 		[PSC_POWER] = {
 			.m = 1204,
+			.b = 8524,
 			.R = -3,
 		},
 		[PSC_POWER_L] = {
 			.m = 612,
+			.b = 11202,
 			.R = -3,
 		},
 		[PSC_TEMPERATURE] = {
@@ -140,26 +157,32 @@ static struct __coeff lm25066_coeff[6][PSC_NUM_CLASSES + 2] = {
 	[lm5066] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 4587,
+			.b = -1200,
 			.R = -2,
 		},
 		[PSC_VOLTAGE_OUT] = {
 			.m = 4587,
+			.b = -2400,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN] = {
 			.m = 10753,
+			.b = -1200,
 			.R = -2,
 		},
 		[PSC_CURRENT_IN_L] = {
 			.m = 5405,
+			.b = -600,
 			.R = -2,
 		},
 		[PSC_POWER] = {
 			.m = 1204,
+			.b = -6000,
 			.R = -3,
 		},
 		[PSC_POWER_L] = {
 			.m = 605,
+			.b = -8000,
 			.R = -3,
 		},
 		[PSC_TEMPERATURE] = {
-- 
GitLab


From 02ecf56faa56f46be1c6ac7975cdc23710517349 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Fri, 8 Oct 2021 13:37:13 +0200
Subject: [PATCH 1018/4878] regulator: s5m8767: do not use reset value as DVS
 voltage if GPIO DVS is disabled

commit b16bef60a9112b1e6daf3afd16484eb06e7ce792 upstream.

The driver and its bindings, before commit 04f9f068a619 ("regulator:
s5m8767: Modify parsing method of the voltage table of buck2/3/4") were
requiring to provide at least one safe/default voltage for DVS registers
if DVS GPIO is not being enabled.

IOW, if s5m8767,pmic-buck2-uses-gpio-dvs is missing, the
s5m8767,pmic-buck2-dvs-voltage should still be present and contain one
voltage.

This requirement was coming from driver behavior matching this condition
(none of DVS GPIO is enabled): it was always initializing the DVS
selector pins to 0 and keeping the DVS enable setting at reset value
(enabled).  Therefore if none of DVS GPIO is enabled in devicetree,
driver was configuring the first DVS voltage for buck[234].

Mentioned commit 04f9f068a619 ("regulator: s5m8767: Modify parsing
method of the voltage table of buck2/3/4") broke it because DVS voltage
won't be parsed from devicetree if DVS GPIO is not enabled.  After the
change, driver will configure bucks to use the register reset value as
voltage which might have unpleasant effects.

Fix this by relaxing the bindings constrain: if DVS GPIO is not enabled
in devicetree (therefore DVS voltage is also not parsed), explicitly
disable it.

Cc: <stable@vger.kernel.org>
Fixes: 04f9f068a619 ("regulator: s5m8767: Modify parsing method of the voltage table of buck2/3/4")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113723.134648-2-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../bindings/regulator/samsung,s5m8767.txt    | 21 +++++++------------
 drivers/regulator/s5m8767.c                   | 21 ++++++++-----------
 2 files changed, 17 insertions(+), 25 deletions(-)

diff --git a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
index 093edda0c8dfc..d9cff1614f7ac 100644
--- a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
+++ b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
@@ -13,6 +13,14 @@ common regulator binding documented in:
 
 
 Required properties of the main device node (the parent!):
+ - s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
+   for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
+
+ [1] If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
+     property is specified, then all the eight voltage values for the
+     's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
+
+Optional properties of the main device node (the parent!):
  - s5m8767,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV)
    units for buck2 when changing voltage using gpio dvs. Refer to [1] below
    for additional information.
@@ -25,19 +33,6 @@ Required properties of the main device node (the parent!):
    units for buck4 when changing voltage using gpio dvs. Refer to [1] below
    for additional information.
 
- - s5m8767,pmic-buck-ds-gpios: GPIO specifiers for three host gpio's used
-   for selecting GPIO DVS lines. It is one-to-one mapped to dvs gpio lines.
-
- [1] If none of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
-     property is specified, the 's5m8767,pmic-buck[2/3/4]-dvs-voltage'
-     property should specify atleast one voltage level (which would be a
-     safe operating voltage).
-
-     If either of the 's5m8767,pmic-buck[2/3/4]-uses-gpio-dvs' optional
-     property is specified, then all the eight voltage values for the
-     's5m8767,pmic-buck[2/3/4]-dvs-voltage' should be specified.
-
-Optional properties of the main device node (the parent!):
  - s5m8767,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs.
  - s5m8767,pmic-buck3-uses-gpio-dvs: 'buck3' can be controlled by gpio dvs.
  - s5m8767,pmic-buck4-uses-gpio-dvs: 'buck4' can be controlled by gpio dvs.
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 7c111bbdc2afa..35269f9982105 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -850,18 +850,15 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
 	/* DS4 GPIO */
 	gpio_direction_output(pdata->buck_ds[2], 0x0);
 
-	if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
-	   pdata->buck4_gpiodvs) {
-		regmap_update_bits(s5m8767->iodev->regmap_pmic,
-				S5M8767_REG_BUCK2CTRL, 1 << 1,
-				(pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1));
-		regmap_update_bits(s5m8767->iodev->regmap_pmic,
-				S5M8767_REG_BUCK3CTRL, 1 << 1,
-				(pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1));
-		regmap_update_bits(s5m8767->iodev->regmap_pmic,
-				S5M8767_REG_BUCK4CTRL, 1 << 1,
-				(pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1));
-	}
+	regmap_update_bits(s5m8767->iodev->regmap_pmic,
+			   S5M8767_REG_BUCK2CTRL, 1 << 1,
+			   (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1));
+	regmap_update_bits(s5m8767->iodev->regmap_pmic,
+			   S5M8767_REG_BUCK3CTRL, 1 << 1,
+			   (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1));
+	regmap_update_bits(s5m8767->iodev->regmap_pmic,
+			   S5M8767_REG_BUCK4CTRL, 1 << 1,
+			   (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1));
 
 	/* Initialize GPIO DVS registers */
 	for (i = 0; i < 8; i++) {
-- 
GitLab


From 31f5c925464aa500dbd0bdd59bbc2e23d6d098fc Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Fri, 8 Oct 2021 13:37:14 +0200
Subject: [PATCH 1019/4878] regulator: dt-bindings: samsung,s5m8767: correct
 s5m8767,pmic-buck-default-dvs-idx property

commit a7fda04bc9b6ad9da8e19c9e6e3b1dab773d068a upstream.

The driver was always parsing "s5m8767,pmic-buck-default-dvs-idx", not
"s5m8767,pmic-buck234-default-dvs-idx".

Cc: <stable@vger.kernel.org>
Fixes: 26aec009f6b6 ("regulator: add device tree support for s5m8767")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113723.134648-3-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
index d9cff1614f7ac..6cd83d920155f 100644
--- a/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
+++ b/Documentation/devicetree/bindings/regulator/samsung,s5m8767.txt
@@ -39,7 +39,7 @@ Optional properties of the main device node (the parent!):
 
 Additional properties required if either of the optional properties are used:
 
- - s5m8767,pmic-buck234-default-dvs-idx: Default voltage setting selected from
+ - s5m8767,pmic-buck-default-dvs-idx: Default voltage setting selected from
    the possible 8 options selectable by the dvs gpios. The value of this
    property should be between 0 and 7. If not specified or if out of range, the
    default value of this property is set to 0.
-- 
GitLab


From a5d8d76710e83d45af60afe95304d9c46b2258cc Mon Sep 17 00:00:00 2001
From: Eric Badger <ebadger@purestorage.com>
Date: Sun, 10 Oct 2021 10:06:56 -0700
Subject: [PATCH 1020/4878] EDAC/sb_edac: Fix top-of-high-memory value for
 Broadwell/Haswell

commit 537bddd069c743759addf422d0b8f028ff0f8dbc upstream.

The computation of TOHM is off by one bit. This missed bit results in
too low a value for TOHM, which can cause errors in regular memory to
incorrectly report:

  EDAC MC0: 1 CE Error at MMIOH area, on addr 0x000000207fffa680 on any memory

Fixes: 50d1bb93672f ("sb_edac: add support for Haswell based systems")
Cc: stable@vger.kernel.org
Reported-by: Meeta Saggi <msaggi@purestorage.com>
Signed-off-by: Eric Badger <ebadger@purestorage.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20211010170127.848113-1-ebadger@purestorage.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/sb_edac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 4c626fcd4dcbb..1522d4aa2ca62 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1052,7 +1052,7 @@ static u64 haswell_get_tohm(struct sbridge_pvt *pvt)
 	pci_read_config_dword(pvt->info.pci_vtd, HASWELL_TOHM_1, &reg);
 	rc = ((reg << 6) | rc) << 26;
 
-	return rc | 0x1ffffff;
+	return rc | 0x3ffffff;
 }
 
 static u64 knl_get_tolm(struct sbridge_pvt *pvt)
-- 
GitLab


From fd1e4d8c61ef577c1b21f96d6a04ab0cb771f9d6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 27 Oct 2021 10:08:19 +0200
Subject: [PATCH 1021/4878] mwifiex: fix division by zero in fw download path

commit 89f8765a11d8df49296d92c404067f9b5c58ee26 upstream.

Add the missing endpoint sanity checks to probe() to avoid division by
zero in mwifiex_write_data_sync() in case a malicious device has broken
descriptors (or when doing descriptor fuzz testing).

Only add checks for the firmware-download boot stage, which require both
command endpoints, for now. The driver looks like it will handle a
missing endpoint during normal operation without oopsing, albeit not
very gracefully as it will try to submit URBs to the default pipe and
fail.

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Fixes: 4daffe354366 ("mwifiex: add support for Marvell USB8797 chipset")
Cc: stable@vger.kernel.org      # 3.5
Cc: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027080819.6675-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/marvell/mwifiex/usb.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c b/drivers/net/wireless/marvell/mwifiex/usb.c
index 426e39d4ccf0f..9736aa0ab7fd4 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -505,6 +505,22 @@ static int mwifiex_usb_probe(struct usb_interface *intf,
 		}
 	}
 
+	switch (card->usb_boot_state) {
+	case USB8XXX_FW_DNLD:
+		/* Reject broken descriptors. */
+		if (!card->rx_cmd_ep || !card->tx_cmd_ep)
+			return -ENODEV;
+		if (card->bulk_out_maxpktsize == 0)
+			return -ENODEV;
+		break;
+	case USB8XXX_FW_READY:
+		/* Assume the driver can handle missing endpoints for now. */
+		break;
+	default:
+		WARN_ON(1);
+		return -ENODEV;
+	}
+
 	usb_set_intfdata(intf, card);
 
 	ret = mwifiex_add_card(card, &card->fw_done, &usb_ops,
-- 
GitLab


From f34487c7f223c435dce529ec8cfe55826bd9d8e3 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 27 Oct 2021 10:08:18 +0200
Subject: [PATCH 1022/4878] ath6kl: fix division by zero in send path

commit c1b9ca365deae667192be9fe24db244919971234 upstream.

Add the missing endpoint max-packet sanity check to probe() to avoid
division by zero in ath10k_usb_hif_tx_sg() in case a malicious device
has broken descriptors (or when doing descriptor fuzz testing).

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Fixes: 9cbee358687e ("ath6kl: add full USB support")
Cc: stable@vger.kernel.org      # 3.5
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027080819.6675-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath6kl/usb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index 5372e948e761d..a917092b259ce 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -340,6 +340,11 @@ static int ath6kl_usb_setup_pipe_resources(struct ath6kl_usb *ar_usb)
 				   le16_to_cpu(endpoint->wMaxPacketSize),
 				   endpoint->bInterval);
 		}
+
+		/* Ignore broken descriptors. */
+		if (usb_endpoint_maxp(endpoint) == 0)
+			continue;
+
 		urbcount = 0;
 
 		pipe_num =
-- 
GitLab


From 1336b2af8adcea8e70b759f3bd852a4ffb1404a1 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:05:20 +0200
Subject: [PATCH 1023/4878] ath6kl: fix control-message timeout

commit a066d28a7e729f808a3e6eff22e70c003091544e upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 241b128b6b69 ("ath6kl: add back beginnings of USB support")
Cc: stable@vger.kernel.org      # 3.4
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211025120522.6045-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath6kl/usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index a917092b259ce..aba70f35e574b 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -912,7 +912,7 @@ static int ath6kl_usb_submit_ctrl_in(struct ath6kl_usb *ar_usb,
 				 req,
 				 USB_DIR_IN | USB_TYPE_VENDOR |
 				 USB_RECIP_DEVICE, value, index, buf,
-				 size, 2 * HZ);
+				 size, 2000);
 
 	if (ret < 0) {
 		ath6kl_warn("Failed to read usb control message: %d\n", ret);
-- 
GitLab


From ce560076091a1c39909db8fee3dd01751b0206a4 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:05:19 +0200
Subject: [PATCH 1024/4878] ath10k: fix control-message timeout

commit 5286132324230168d3fab6ffc16bfd7de85bdfb4 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 4db66499df91 ("ath10k: add initial USB support")
Cc: stable@vger.kernel.org      # 4.14
Cc: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211025120522.6045-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath10k/usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/usb.c b/drivers/net/wireless/ath/ath10k/usb.c
index 19b9c27e30e20..6d831b098cbb6 100644
--- a/drivers/net/wireless/ath/ath10k/usb.c
+++ b/drivers/net/wireless/ath/ath10k/usb.c
@@ -525,7 +525,7 @@ static int ath10k_usb_submit_ctrl_in(struct ath10k *ar,
 			      req,
 			      USB_DIR_IN | USB_TYPE_VENDOR |
 			      USB_RECIP_DEVICE, value, index, buf,
-			      size, 2 * HZ);
+			      size, 2000);
 
 	if (ret < 0) {
 		ath10k_warn(ar, "Failed to read usb control message: %d\n",
-- 
GitLab


From 30182b8c138818302d44a16fe5debc66ad23c021 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 27 Oct 2021 10:08:17 +0200
Subject: [PATCH 1025/4878] ath10k: fix division by zero in send path

commit a006acb931317aad3a8dd41333ebb0453caf49b8 upstream.

Add the missing endpoint max-packet sanity check to probe() to avoid
division by zero in ath10k_usb_hif_tx_sg() in case a malicious device
has broken descriptors (or when doing descriptor fuzz testing).

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Fixes: 4db66499df91 ("ath10k: add initial USB support")
Cc: stable@vger.kernel.org      # 4.14
Cc: Erik Stromdahl <erik.stromdahl@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027080819.6675-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath10k/usb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/usb.c b/drivers/net/wireless/ath/ath10k/usb.c
index 6d831b098cbb6..3d98f19c6ec8a 100644
--- a/drivers/net/wireless/ath/ath10k/usb.c
+++ b/drivers/net/wireless/ath/ath10k/usb.c
@@ -853,6 +853,11 @@ static int ath10k_usb_setup_pipe_resources(struct ath10k *ar,
 				   le16_to_cpu(endpoint->wMaxPacketSize),
 				   endpoint->bInterval);
 		}
+
+		/* Ignore broken descriptors. */
+		if (usb_endpoint_maxp(endpoint) == 0)
+			continue;
+
 		urbcount = 0;
 
 		pipe_num =
-- 
GitLab


From 73b79ada4c1c4e26714b611223c49483421ffc25 Mon Sep 17 00:00:00 2001
From: Ingmar Klein <ingmar_klein@web.de>
Date: Fri, 9 Apr 2021 11:26:33 +0200
Subject: [PATCH 1026/4878] PCI: Mark Atheros QCA6174 to avoid bus reset
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e3f4bd3462f6f796594ecc0dda7144ed2d1e5a26 upstream.

When passing the Atheros QCA6174 through to a virtual machine, the VM hangs
at the point where the ath10k driver loads.

Add a quirk to avoid bus resets on this device, which avoids the hang.

[bhelgaas: commit log]
Link: https://lore.kernel.org/r/08982e05-b6e8-5a8d-24ab-da1488ee50a8@web.de
Signed-off-by: Ingmar Klein <ingmar_klein@web.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/quirks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 5d2acebc3e966..fb91b2d7b1c59 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3584,6 +3584,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003e, quirk_no_bus_reset);
 
 /*
  * Root port on some Cavium CN8xxx chips do not successfully complete a bus
-- 
GitLab


From eab090dfcb1dbb5b8469343357ad037827345270 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 14:05:21 +0200
Subject: [PATCH 1027/4878] rtl8187: fix control-message timeouts

commit 2e9be536a213e838daed6ba42024dd68954ac061 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 605bebe23bf6 ("[PATCH] Add rtl8187 wireless driver")
Cc: stable@vger.kernel.org      # 2.6.23
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211025120522.6045-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/wireless/realtek/rtl818x/rtl8187/rtl8225.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8187/rtl8225.c b/drivers/net/wireless/realtek/rtl818x/rtl8187/rtl8225.c
index 585784258c665..4efab907a3ac6 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8187/rtl8225.c
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8187/rtl8225.c
@@ -28,7 +28,7 @@ u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
 	usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 			RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 			(unsigned long)addr, idx & 0x03,
-			&priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
+			&priv->io_dmabuf->bits8, sizeof(val), 500);
 
 	val = priv->io_dmabuf->bits8;
 	mutex_unlock(&priv->io_mutex);
@@ -45,7 +45,7 @@ u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
 	usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 			RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 			(unsigned long)addr, idx & 0x03,
-			&priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
+			&priv->io_dmabuf->bits16, sizeof(val), 500);
 
 	val = priv->io_dmabuf->bits16;
 	mutex_unlock(&priv->io_mutex);
@@ -62,7 +62,7 @@ u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
 	usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
 			RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
 			(unsigned long)addr, idx & 0x03,
-			&priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
+			&priv->io_dmabuf->bits32, sizeof(val), 500);
 
 	val = priv->io_dmabuf->bits32;
 	mutex_unlock(&priv->io_mutex);
@@ -79,7 +79,7 @@ void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
 	usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 			RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 			(unsigned long)addr, idx & 0x03,
-			&priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
+			&priv->io_dmabuf->bits8, sizeof(val), 500);
 
 	mutex_unlock(&priv->io_mutex);
 }
@@ -93,7 +93,7 @@ void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
 	usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 			RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 			(unsigned long)addr, idx & 0x03,
-			&priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
+			&priv->io_dmabuf->bits16, sizeof(val), 500);
 
 	mutex_unlock(&priv->io_mutex);
 }
@@ -107,7 +107,7 @@ void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
 	usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 			RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 			(unsigned long)addr, idx & 0x03,
-			&priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
+			&priv->io_dmabuf->bits32, sizeof(val), 500);
 
 	mutex_unlock(&priv->io_mutex);
 }
@@ -183,7 +183,7 @@ static void rtl8225_write_8051(struct ieee80211_hw *dev, u8 addr, __le16 data)
 	usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
 			RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
 			addr, 0x8225, &priv->io_dmabuf->bits16, sizeof(data),
-			HZ / 2);
+			500);
 
 	mutex_unlock(&priv->io_mutex);
 
-- 
GitLab


From c7400e2ec8de2cf0f8a858aeeaec2722106b2aab Mon Sep 17 00:00:00 2001
From: Austin Kim <austin.kim@lge.com>
Date: Thu, 28 Oct 2021 12:26:42 +0100
Subject: [PATCH 1028/4878] evm: mark evm_fixmode as __ro_after_init

commit 32ba540f3c2a7ef61ed5a577ce25069a3d714fc9 upstream.

The evm_fixmode is only configurable by command-line option and it is never
modified outside initcalls, so declaring it with __ro_after_init is better.

Signed-off-by: Austin Kim <austin.kim@lge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/integrity/evm/evm_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index f1ca3cac9b861..b929c683aba12 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -54,7 +54,7 @@ static struct xattr_list evm_config_default_xattrnames[] = {
 
 LIST_HEAD(evm_config_xattrnames);
 
-static int evm_fixmode;
+static int evm_fixmode __ro_after_init;
 static int __init evm_set_fixmode(char *str)
 {
 	if (strncmp(str, "fix", 3) == 0)
-- 
GitLab


From c044f34ca22f26b0845912e3ca7b33d77b041c70 Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Tue, 26 Oct 2021 07:15:32 +0200
Subject: [PATCH 1029/4878] ifb: Depend on netfilter alternatively to tc

commit 046178e726c2977d686ba5e07105d5a6685c830e upstream.

IFB originally depended on NET_CLS_ACT for traffic redirection.
But since v4.5, that may be achieved with NFT_FWD_NETDEV as well.

Fixes: 39e6dea28adc ("netfilter: nf_tables: add forward expression to the netdev family")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: <stable@vger.kernel.org> # v4.5+: bcfabee1afd9: netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 600b9d09ec087..cb865b7ec3750 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -148,7 +148,7 @@ config NET_FC
 
 config IFB
 	tristate "Intermediate Functional Block support"
-	depends on NET_CLS_ACT
+	depends on NET_ACT_MIRRED || NFT_FWD_NETDEV
 	select NET_REDIRECT
 	help
 	  This is an intermediate driver that allows sharing of
-- 
GitLab


From 3d62e1c9bc5575ac042748814a1d3d3e5cc967d6 Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Wed, 20 Oct 2021 15:38:53 +0200
Subject: [PATCH 1030/4878] wcn36xx: Fix HT40 capability for 2Ghz band

commit 960ae77f25631bbe4e3aafefe209b52e044baf31 upstream.

All wcn36xx controllers are supposed to support HT40 (and SGI40),
This doubles the maximum bitrate/throughput with compatible APs.

Tested with wcn3620 & wcn3680B.

Cc: stable@vger.kernel.org
Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634737133-22336-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/wcn36xx/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 43be20baab354..883534125df10 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -134,7 +134,9 @@ static struct ieee80211_supported_band wcn_band_2ghz = {
 		.cap =	IEEE80211_HT_CAP_GRN_FLD |
 			IEEE80211_HT_CAP_SGI_20 |
 			IEEE80211_HT_CAP_DSSSCCK40 |
-			IEEE80211_HT_CAP_LSIG_TXOP_PROT,
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT |
+			IEEE80211_HT_CAP_SGI_40 |
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40,
 		.ht_supported = true,
 		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
 		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
-- 
GitLab


From c1b8ad661ff16e89cf7753cfe81afea5094f163b Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Mon, 25 Oct 2021 16:12:18 +0300
Subject: [PATCH 1031/4878] wcn36xx: Fix tx_status mechanism

commit a9e79b116cc4d0057e912be8f40b2c2e5bdc7c43 upstream.

This change fix the TX ack mechanism in various ways:

- For NO_ACK tagged packets, we don't need to wait for TX_ACK indication
and so are not subject to the single packet ack limitation. So we don't
have to stop the tx queue, and can call the tx status callback as soon
as DMA transfer has completed.

- Fix skb ownership/reference. Only start status indication timeout
once the DMA transfer has been completed. This avoids the skb to be
both referenced in the DMA tx ring and by the tx_ack_skb pointer,
preventing any use-after-free or double-free.

- This adds a sanity (paranoia?) check on the skb tx ack pointer.

- Resume TX queue if TX status tagged packet TX fails.

Cc: stable@vger.kernel.org
Fixes: fdf21cc37149 ("wcn36xx: Add TX ack support")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634567281-28997-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/wcn36xx/dxe.c  | 37 ++++++++++---------------
 drivers/net/wireless/ath/wcn36xx/txrx.c | 31 ++++-----------------
 2 files changed, 21 insertions(+), 47 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index 63079231e48ec..70c46c327512f 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -403,8 +403,21 @@ static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch)
 			dma_unmap_single(wcn->dev, ctl->desc->src_addr_l,
 					 ctl->skb->len, DMA_TO_DEVICE);
 			info = IEEE80211_SKB_CB(ctl->skb);
-			if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) {
-				/* Keep frame until TX status comes */
+			if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
+				if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
+					info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
+					ieee80211_tx_status_irqsafe(wcn->hw, ctl->skb);
+				} else {
+					/* Wait for the TX ack indication or timeout... */
+					spin_lock(&wcn->dxe_lock);
+					if (WARN_ON(wcn->tx_ack_skb))
+						ieee80211_free_txskb(wcn->hw, wcn->tx_ack_skb);
+					wcn->tx_ack_skb = ctl->skb; /* Tracking ref */
+					mod_timer(&wcn->tx_ack_timer, jiffies + HZ / 10);
+					spin_unlock(&wcn->dxe_lock);
+				}
+				/* do not free, ownership transferred to mac80211 status cb */
+			} else {
 				ieee80211_free_txskb(wcn->hw, ctl->skb);
 			}
 
@@ -426,7 +439,6 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
 {
 	struct wcn36xx *wcn = (struct wcn36xx *)dev;
 	int int_src, int_reason;
-	bool transmitted = false;
 
 	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_INT_SRC_RAW_REG, &int_src);
 
@@ -466,7 +478,6 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
 		if (int_reason & (WCN36XX_CH_STAT_INT_DONE_MASK |
 				  WCN36XX_CH_STAT_INT_ED_MASK)) {
 			reap_tx_dxes(wcn, &wcn->dxe_tx_h_ch);
-			transmitted = true;
 		}
 	}
 
@@ -479,7 +490,6 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
 					   WCN36XX_DXE_0_INT_CLR,
 					   WCN36XX_INT_MASK_CHAN_TX_L);
 
-
 		if (int_reason & WCN36XX_CH_STAT_INT_ERR_MASK ) {
 			wcn36xx_dxe_write_register(wcn,
 						   WCN36XX_DXE_0_INT_ERR_CLR,
@@ -507,25 +517,8 @@ static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
 		if (int_reason & (WCN36XX_CH_STAT_INT_DONE_MASK |
 				  WCN36XX_CH_STAT_INT_ED_MASK)) {
 			reap_tx_dxes(wcn, &wcn->dxe_tx_l_ch);
-			transmitted = true;
-		}
-	}
-
-	spin_lock(&wcn->dxe_lock);
-	if (wcn->tx_ack_skb && transmitted) {
-		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(wcn->tx_ack_skb);
-
-		/* TX complete, no need to wait for 802.11 ack indication */
-		if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS &&
-		    info->flags & IEEE80211_TX_CTL_NO_ACK) {
-			info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
-			del_timer(&wcn->tx_ack_timer);
-			ieee80211_tx_status_irqsafe(wcn->hw, wcn->tx_ack_skb);
-			wcn->tx_ack_skb = NULL;
-			ieee80211_wake_queues(wcn->hw);
 		}
 	}
-	spin_unlock(&wcn->dxe_lock);
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index cab196bb38cd4..f2e20449d4fbb 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -502,10 +502,11 @@ int wcn36xx_start_tx(struct wcn36xx *wcn,
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct wcn36xx_vif *vif_priv = NULL;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	unsigned long flags;
 	bool is_low = ieee80211_is_data(hdr->frame_control);
 	bool bcast = is_broadcast_ether_addr(hdr->addr1) ||
 		is_multicast_ether_addr(hdr->addr1);
+	bool ack_ind = (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) &&
+					!(info->flags & IEEE80211_TX_CTL_NO_ACK);
 	struct wcn36xx_tx_bd bd;
 	int ret;
 
@@ -521,30 +522,16 @@ int wcn36xx_start_tx(struct wcn36xx *wcn,
 
 	bd.dpu_rf = WCN36XX_BMU_WQ_TX;
 
-	if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
+	if (unlikely(ack_ind)) {
 		wcn36xx_dbg(WCN36XX_DBG_DXE, "TX_ACK status requested\n");
 
-		spin_lock_irqsave(&wcn->dxe_lock, flags);
-		if (wcn->tx_ack_skb) {
-			spin_unlock_irqrestore(&wcn->dxe_lock, flags);
-			wcn36xx_warn("tx_ack_skb already set\n");
-			return -EINVAL;
-		}
-
-		wcn->tx_ack_skb = skb;
-		spin_unlock_irqrestore(&wcn->dxe_lock, flags);
-
 		/* Only one at a time is supported by fw. Stop the TX queues
 		 * until the ack status gets back.
 		 */
 		ieee80211_stop_queues(wcn->hw);
 
-		/* TX watchdog if no TX irq or ack indication received  */
-		mod_timer(&wcn->tx_ack_timer, jiffies + HZ / 10);
-
 		/* Request ack indication from the firmware */
-		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
-			bd.tx_comp = 1;
+		bd.tx_comp = 1;
 	}
 
 	/* Data frames served first*/
@@ -558,14 +545,8 @@ int wcn36xx_start_tx(struct wcn36xx *wcn,
 	bd.tx_bd_sign = 0xbdbdbdbd;
 
 	ret = wcn36xx_dxe_tx_frame(wcn, vif_priv, &bd, skb, is_low);
-	if (ret && (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) {
-		/* If the skb has not been transmitted,
-		 * don't keep a reference to it.
-		 */
-		spin_lock_irqsave(&wcn->dxe_lock, flags);
-		wcn->tx_ack_skb = NULL;
-		spin_unlock_irqrestore(&wcn->dxe_lock, flags);
-
+	if (unlikely(ret && ack_ind)) {
+		/* If the skb has not been transmitted, resume TX queue */
 		ieee80211_wake_queues(wcn->hw);
 	}
 
-- 
GitLab


From 1c422d63010a741902c233bec6ef07eae944b661 Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Mon, 25 Oct 2021 16:12:18 +0300
Subject: [PATCH 1032/4878] wcn36xx: Fix (QoS) null data frame
 bitrate/modulation

commit d3fd2c95c1c13ec217d43ebef3c61cfa00a6cd37 upstream.

We observe unexpected connection drops with some APs due to
non-acked mac80211 generated null data frames (keep-alive).
After debugging and capture, we noticed that null frames are
submitted at standard data bitrate and that the given APs are
in trouble with that.

After setting the null frame bitrate to control bitrate, all
null frames are acked as expected and connection is maintained.

Not sure if it's a requirement of the specification, but it seems
the right thing to do anyway, null frames are mostly used for control
purpose (power-saving, keep-alive...), and submitting them with
a slower/simpler bitrate/modulation is more robust.

Cc: stable@vger.kernel.org
Fixes: 512b191d9652 ("wcn36xx: Fix TX data path")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634560399-15290-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index f2e20449d4fbb..eaf2410e39647 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -429,6 +429,7 @@ static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
 	if (ieee80211_is_any_nullfunc(hdr->frame_control)) {
 		/* Don't use a regular queue for null packet (no ampdu) */
 		bd->queue_id = WCN36XX_TX_U_WQ_ID;
+		bd->bd_rate = WCN36XX_BD_RATE_CTRL;
 	}
 
 	if (bcast) {
-- 
GitLab


From daccf40320d41fe7241caa8c47584b934b0fe97f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 22 Oct 2021 14:58:23 +0200
Subject: [PATCH 1033/4878] PM: sleep: Do not let "syscore" devices
 runtime-suspend during system transitions

commit 928265e3601cde78c7e0a3e518a93b27defed3b1 upstream.

There is no reason to allow "syscore" devices to runtime-suspend
during system-wide PM transitions, because they are subject to the
same possible failure modes as any other devices in that respect.

Accordingly, change device_prepare() and device_complete() to call
pm_runtime_get_noresume() and pm_runtime_put(), respectively, for
"syscore" devices too.

Fixes: 057d51a1268f ("Merge branch 'pm-sleep'")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/power/main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 192b1c7286b36..4167e2aef3975 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1053,7 +1053,7 @@ static void device_complete(struct device *dev, pm_message_t state)
 	const char *info = NULL;
 
 	if (dev->power.syscore)
-		return;
+		goto out;
 
 	device_lock(dev);
 
@@ -1083,6 +1083,7 @@ static void device_complete(struct device *dev, pm_message_t state)
 
 	device_unlock(dev);
 
+out:
 	pm_runtime_put(dev);
 }
 
@@ -1796,9 +1797,6 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	int (*callback)(struct device *) = NULL;
 	int ret = 0;
 
-	if (dev->power.syscore)
-		return 0;
-
 	/*
 	 * If a device's parent goes into runtime suspend at the wrong time,
 	 * it won't be possible to resume the device.  To prevent this we
@@ -1807,6 +1805,9 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	 */
 	pm_runtime_get_noresume(dev);
 
+	if (dev->power.syscore)
+		return 0;
+
 	device_lock(dev);
 
 	dev->power.wakeup_path = false;
-- 
GitLab


From d59d2f7af7e041cafe32a7c42002308ea53dc24f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
Date: Mon, 11 Oct 2021 15:32:23 +0200
Subject: [PATCH 1034/4878] mwifiex: Read a PCI register after writing the TX
 ring write pointer
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e5f4eb8223aa740237cd463246a7debcddf4eda1 upstream.

On the 88W8897 PCIe+USB card the firmware randomly crashes after setting
the TX ring write pointer. The issue is present in the latest firmware
version 15.68.19.p21 of the PCIe+USB card.

Those firmware crashes can be worked around by reading any PCI register
of the card after setting that register, so read the PCI_VENDOR_ID
register here. The reason this works is probably because we keep the bus
from entering an ASPM state for a bit longer, because that's what causes
the cards firmware to crash.

This fixes a bug where during RX/TX traffic and with ASPM L1 substates
enabled (the specific substates where the issue happens appear to be
platform dependent), the firmware crashes and eventually a command
timeout appears in the logs.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=109681
Cc: stable@vger.kernel.org
Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211011133224.15561-2-verdre@v0yd.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/marvell/mwifiex/pcie.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index b2de8d03c5fac..3c154f7ffbb9f 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -1480,6 +1480,14 @@ mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb,
 			ret = -1;
 			goto done_unmap;
 		}
+
+		/* The firmware (latest version 15.68.19.p21) of the 88W8897 PCIe+USB card
+		 * seems to crash randomly after setting the TX ring write pointer when
+		 * ASPM powersaving is enabled. A workaround seems to be keeping the bus
+		 * busy by reading a random register afterwards.
+		 */
+		mwifiex_read_reg(adapter, PCI_VENDOR_ID, &rx_val);
+
 		if ((mwifiex_pcie_txbd_not_full(card)) &&
 		    tx_param->next_pkt_len) {
 			/* have more packets and TxBD still can hold more */
-- 
GitLab


From 890e416c026ee339cd08c6d8e4fba86868e3f510 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
Date: Mon, 11 Oct 2021 15:32:24 +0200
Subject: [PATCH 1035/4878] mwifiex: Try waking the firmware until we get an
 interrupt
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 8e3e59c31fea5de95ffc52c46f0c562c39f20c59 upstream.

It seems that the PCIe+USB firmware (latest version 15.68.19.p21) of the
88W8897 card sometimes ignores or misses when we try to wake it up by
writing to the firmware status register. This leads to the firmware
wakeup timeout expiring and the driver resetting the card because we
assume the firmware has hung up or crashed.

Turns out that the firmware actually didn't hang up, but simply "missed"
our wakeup request and didn't send us an interrupt with an AWAKE event.

Trying again to read the firmware status register after a short timeout
usually makes the firmware wake up as expected, so add a small retry
loop to mwifiex_pm_wakeup_card() that looks at the interrupt status to
check whether the card woke up.

The number of tries and timeout lengths for this were determined
experimentally: The firmware usually takes about 500 us to wake up
after we attempt to read the status register. In some cases where the
firmware is very busy (for example while doing a bluetooth scan) it
might even miss our requests for multiple milliseconds, which is why
after 15 tries the waiting time gets increased to 10 ms. The maximum
number of tries it took to wake the firmware when testing this was
around 20, so a maximum number of 50 tries should give us plenty of
safety margin.

Here's a reproducer for those firmware wakeup failures I've found:

1) Make sure wifi powersaving is enabled (iw dev wlp1s0 set power_save on)
2) Connect to any wifi network (makes firmware go into wifi powersaving
mode, not deep sleep)
3) Make sure bluetooth is turned off (to ensure the firmware actually
enters powersave mode and doesn't keep the radio active doing bluetooth
stuff)
4) To confirm that wifi powersaving is entered ping a device on the LAN,
pings should be a few ms higher than without powersaving
5) Run "while true; do iwconfig; sleep 0.0001; done", this wakes and
suspends the firmware extremely often
6) Wait until things explode, for me it consistently takes <5 minutes

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=109681
Cc: stable@vger.kernel.org
Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211011133224.15561-3-verdre@v0yd.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/marvell/mwifiex/pcie.c | 28 +++++++++++++++++----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 3c154f7ffbb9f..7c137eba8cda7 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -17,6 +17,7 @@
  * this warranty disclaimer.
  */
 
+#include <linux/iopoll.h>
 #include <linux/firmware.h>
 
 #include "decl.h"
@@ -637,11 +638,15 @@ static void mwifiex_delay_for_sleep_cookie(struct mwifiex_adapter *adapter,
 			    "max count reached while accessing sleep cookie\n");
 }
 
+#define N_WAKEUP_TRIES_SHORT_INTERVAL 15
+#define N_WAKEUP_TRIES_LONG_INTERVAL 35
+
 /* This function wakes up the card by reading fw_status register. */
 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
 {
 	struct pcie_service_card *card = adapter->card;
 	const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
+	int retval;
 
 	mwifiex_dbg(adapter, EVENT,
 		    "event: Wakeup device...\n");
@@ -649,11 +654,24 @@ static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
 	if (reg->sleep_cookie)
 		mwifiex_pcie_dev_wakeup_delay(adapter);
 
-	/* Accessing fw_status register will wakeup device */
-	if (mwifiex_write_reg(adapter, reg->fw_status, FIRMWARE_READY_PCIE)) {
-		mwifiex_dbg(adapter, ERROR,
-			    "Writing fw_status register failed\n");
-		return -1;
+	/* The 88W8897 PCIe+USB firmware (latest version 15.68.19.p21) sometimes
+	 * appears to ignore or miss our wakeup request, so we continue trying
+	 * until we receive an interrupt from the card.
+	 */
+	if (read_poll_timeout(mwifiex_write_reg, retval,
+			      READ_ONCE(adapter->int_status) != 0,
+			      500, 500 * N_WAKEUP_TRIES_SHORT_INTERVAL,
+			      false,
+			      adapter, reg->fw_status, FIRMWARE_READY_PCIE)) {
+		if (read_poll_timeout(mwifiex_write_reg, retval,
+				      READ_ONCE(adapter->int_status) != 0,
+				      10000, 10000 * N_WAKEUP_TRIES_LONG_INTERVAL,
+				      false,
+				      adapter, reg->fw_status, FIRMWARE_READY_PCIE)) {
+			mwifiex_dbg(adapter, ERROR,
+				    "Firmware didn't wake up\n");
+			return -EIO;
+		}
 	}
 
 	if (reg->sleep_cookie) {
-- 
GitLab


From 701cf28e019d5f88684aec194d7f0119772bc10a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Tue, 12 Oct 2021 08:27:44 +0200
Subject: [PATCH 1036/4878] libata: fix checking of DMA state
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f971a85439bd25dc7b4d597cf5e4e8dc7ffc884b upstream.

Checking if DMA is enabled should be done via the
ata_dma_enabled helper function, since the init state
0xff indicates disabled.
This meant that ATA_CMD_READ_LOG_DMA_EXT was used and probed
for before DMA was enabled, which caused hangs for some combinations
of controllers and devices.
It might also have caused it to be incorrectly disabled as broken,
but there have been no reports of that.

Cc: stable@vger.kernel.org
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=195895
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libata-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 8916163d508e0..8acf99b88b21e 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2004,7 +2004,7 @@ unsigned int ata_read_log_page(struct ata_device *dev, u8 log,
 
 retry:
 	ata_tf_init(dev, &tf);
-	if (dev->dma_mode && ata_id_has_read_log_dma_ext(dev->id) &&
+	if (ata_dma_enabled(dev) && ata_id_has_read_log_dma_ext(dev->id) &&
 	    !(dev->horkage & ATA_HORKAGE_NO_DMA_LOG)) {
 		tf.command = ATA_CMD_READ_LOG_DMA_EXT;
 		tf.protocol = ATA_PROT_DMA;
-- 
GitLab


From a194e9c721d9e0ca6fc10814acb647055d8f3d18 Mon Sep 17 00:00:00 2001
From: Benjamin Li <benl@squareup.com>
Date: Wed, 1 Sep 2021 11:06:05 -0700
Subject: [PATCH 1037/4878] wcn36xx: handle connection loss indication

commit d6dbce453b19c64b96f3e927b10230f9a704b504 upstream.

Firmware sends delete_sta_context_ind when it detects the AP has gone
away in STA mode. Right now the handler for that indication only handles
AP mode; fix it to also handle STA mode.

Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Li <benl@squareup.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210901180606.11686-1-benl@squareup.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 44 +++++++++++++++++++-------
 1 file changed, 33 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 766400f7b61c1..3793907ace92e 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -2632,30 +2632,52 @@ static int wcn36xx_smd_delete_sta_context_ind(struct wcn36xx *wcn,
 					      size_t len)
 {
 	struct wcn36xx_hal_delete_sta_context_ind_msg *rsp = buf;
-	struct wcn36xx_vif *tmp;
+	struct wcn36xx_vif *vif_priv;
+	struct ieee80211_vif *vif;
+	struct ieee80211_bss_conf *bss_conf;
 	struct ieee80211_sta *sta;
+	bool found = false;
 
 	if (len != sizeof(*rsp)) {
 		wcn36xx_warn("Corrupted delete sta indication\n");
 		return -EIO;
 	}
 
-	wcn36xx_dbg(WCN36XX_DBG_HAL, "delete station indication %pM index %d\n",
-		    rsp->addr2, rsp->sta_id);
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "delete station indication %pM index %d reason %d\n",
+		    rsp->addr2, rsp->sta_id, rsp->reason_code);
 
-	list_for_each_entry(tmp, &wcn->vif_list, list) {
+	list_for_each_entry(vif_priv, &wcn->vif_list, list) {
 		rcu_read_lock();
-		sta = ieee80211_find_sta(wcn36xx_priv_to_vif(tmp), rsp->addr2);
-		if (sta)
-			ieee80211_report_low_ack(sta, 0);
+		vif = wcn36xx_priv_to_vif(vif_priv);
+
+		if (vif->type == NL80211_IFTYPE_STATION) {
+			/* We could call ieee80211_find_sta too, but checking
+			 * bss_conf is clearer.
+			 */
+			bss_conf = &vif->bss_conf;
+			if (vif_priv->sta_assoc &&
+			    !memcmp(bss_conf->bssid, rsp->addr2, ETH_ALEN)) {
+				found = true;
+				wcn36xx_dbg(WCN36XX_DBG_HAL,
+					    "connection loss bss_index %d\n",
+					    vif_priv->bss_index);
+				ieee80211_connection_loss(vif);
+			}
+		} else {
+			sta = ieee80211_find_sta(vif, rsp->addr2);
+			if (sta) {
+				found = true;
+				ieee80211_report_low_ack(sta, 0);
+			}
+		}
+
 		rcu_read_unlock();
-		if (sta)
+		if (found)
 			return 0;
 	}
 
-	wcn36xx_warn("STA with addr %pM and index %d not found\n",
-		     rsp->addr2,
-		     rsp->sta_id);
+	wcn36xx_warn("BSS or STA with addr %pM not found\n", rsp->addr2);
 	return -ENOENT;
 }
 
-- 
GitLab


From 46752a7aed913a7f653053f025f96d0d9a457f84 Mon Sep 17 00:00:00 2001
From: Martin Fuzzey <martin.fuzzey@flowbird.group>
Date: Mon, 30 Aug 2021 17:26:44 +0200
Subject: [PATCH 1038/4878] rsi: fix occasional initialisation failure with BT
 coex

commit 9b14ed6e11b72dd4806535449ca6c6962cb2369d upstream.

When BT coexistence is enabled (eg oper mode 13, which is the default)
the initialisation on startup sometimes silently fails.

In a normal initialisation we see
	usb 1-1.3: Product: Wireless USB Network Module
	usb 1-1.3: Manufacturer: Redpine Signals, Inc.
	usb 1-1.3: SerialNumber: 000000000001
	rsi_91x: rsi_probe: Initialized os intf ops
	rsi_91x: rsi_load_9116_firmware: Loading chunk 0
	rsi_91x: rsi_load_9116_firmware: Loading chunk 1
	rsi_91x: rsi_load_9116_firmware: Loading chunk 2
	rsi_91x: Max Stations Allowed = 1

But sometimes the last log is missing and the wlan net device is
not created.

Running a userspace loop that resets the hardware via a GPIO shows the
problem occurring ~5/100 resets.

The problem does not occur in oper mode 1 (wifi only).

Adding logs shows that the initialisation state machine requests a MAC
reset via rsi_send_reset_mac() but the firmware does not reply, leading
to the initialisation sequence being incomplete.

Fix this by delaying attaching the BT adapter until the wifi
initialisation has completed.

With this applied I have done > 300 reset loops with no errors.

Fixes: 716b840c7641 ("rsi: handle BT traffic in driver")
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
CC: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630337206-12410-2-git-send-email-martin.fuzzey@flowbird.group
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/rsi/rsi_91x_main.c | 16 +++++++++++++---
 drivers/net/wireless/rsi/rsi_91x_mgmt.c |  3 +++
 drivers/net/wireless/rsi/rsi_main.h     |  2 ++
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_main.c b/drivers/net/wireless/rsi/rsi_91x_main.c
index 9a3d2439a8e7a..0a2f8b4f447bd 100644
--- a/drivers/net/wireless/rsi/rsi_91x_main.c
+++ b/drivers/net/wireless/rsi/rsi_91x_main.c
@@ -211,9 +211,10 @@ int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len)
 			bt_pkt_type = frame_desc[offset + BT_RX_PKT_TYPE_OFST];
 			if (bt_pkt_type == BT_CARD_READY_IND) {
 				rsi_dbg(INFO_ZONE, "BT Card ready recvd\n");
-				if (rsi_bt_ops.attach(common, &g_proto_ops))
-					rsi_dbg(ERR_ZONE,
-						"Failed to attach BT module\n");
+				if (common->fsm_state == FSM_MAC_INIT_DONE)
+					rsi_attach_bt(common);
+				else
+					common->bt_defer_attach = true;
 			} else {
 				if (common->bt_adapter)
 					rsi_bt_ops.recv_pkt(common->bt_adapter,
@@ -278,6 +279,15 @@ void rsi_set_bt_context(void *priv, void *bt_context)
 }
 #endif
 
+void rsi_attach_bt(struct rsi_common *common)
+{
+#ifdef CONFIG_RSI_COEX
+	if (rsi_bt_ops.attach(common, &g_proto_ops))
+		rsi_dbg(ERR_ZONE,
+			"Failed to attach BT module\n");
+#endif
+}
+
 /**
  * rsi_91x_init() - This function initializes os interface operations.
  * @oper_mode: One of DEV_OPMODE_*.
diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
index b6d050a2fbe7e..275370d37880c 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -2071,6 +2071,9 @@ static int rsi_handle_ta_confirm_type(struct rsi_common *common,
 				if (common->reinit_hw) {
 					complete(&common->wlan_init_completion);
 				} else {
+					if (common->bt_defer_attach)
+						rsi_attach_bt(common);
+
 					return rsi_mac80211_attach(common);
 				}
 			}
diff --git a/drivers/net/wireless/rsi/rsi_main.h b/drivers/net/wireless/rsi/rsi_main.h
index b3e25bc28682c..f7a4636b7bca8 100644
--- a/drivers/net/wireless/rsi/rsi_main.h
+++ b/drivers/net/wireless/rsi/rsi_main.h
@@ -320,6 +320,7 @@ struct rsi_common {
 	struct ieee80211_vif *roc_vif;
 
 	bool eapol4_confirm;
+	bool bt_defer_attach;
 	void *bt_adapter;
 
 	struct cfg80211_scan_request *hwscan;
@@ -401,5 +402,6 @@ struct rsi_host_intf_ops {
 
 enum rsi_host_intf rsi_get_host_intf(void *priv);
 void rsi_set_bt_context(void *priv, void *bt_context);
+void rsi_attach_bt(struct rsi_common *common);
 
 #endif
-- 
GitLab


From 41d97e0360e9af3714b32b790885aa1f0d763712 Mon Sep 17 00:00:00 2001
From: Martin Fuzzey <martin.fuzzey@flowbird.group>
Date: Mon, 30 Aug 2021 17:26:45 +0200
Subject: [PATCH 1039/4878] rsi: fix key enabled check causing unwanted
 encryption for vap_id > 0

commit 99ac6018821253ec67f466086afb63fc18ea48e2 upstream.

My previous patch checked if encryption should be enabled by directly
checking info->control.hw_key (like the downstream driver).
However that missed that the control and driver_info members of
struct ieee80211_tx_info are union fields.

Due to this when rsi_core_xmit() updates fields in "tx_params"
(driver_info) it can overwrite the control.hw_key, causing the result
of the later test to be incorrect.

With the current structure layout the first byte of control.hw_key is
overlayed with the vap_id so, since we only test if control.hw_key is
NULL / non NULL, a non zero vap_id will incorrectly enable encryption.

In basic STA and AP modes the vap_id is always zero so it works but in
P2P client mode a second VIF is created causing vap_id to be non zero
and hence encryption to be enabled before keys have been set.

Fix this by extracting the key presence flag to a new field in the driver
private tx_params structure and populating it first.

Fixes: 314538041b56 ("rsi: fix AP mode with WPA failure due to encrypted EAPOL")
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
CC: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630337206-12410-3-git-send-email-martin.fuzzey@flowbird.group
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/rsi/rsi_91x_core.c | 2 ++
 drivers/net/wireless/rsi/rsi_91x_hal.c  | 2 +-
 drivers/net/wireless/rsi/rsi_main.h     | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_core.c b/drivers/net/wireless/rsi/rsi_91x_core.c
index 2d49c5b5eefb4..9c4c585572488 100644
--- a/drivers/net/wireless/rsi/rsi_91x_core.c
+++ b/drivers/net/wireless/rsi/rsi_91x_core.c
@@ -400,6 +400,8 @@ void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb)
 
 	info = IEEE80211_SKB_CB(skb);
 	tx_params = (struct skb_info *)info->driver_data;
+	/* info->driver_data and info->control part of union so make copy */
+	tx_params->have_key = !!info->control.hw_key;
 	wh = (struct ieee80211_hdr *)&skb->data[0];
 	tx_params->sta_id = 0;
 
diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c
index f4a26f16f00f4..2aa9f0b128396 100644
--- a/drivers/net/wireless/rsi/rsi_91x_hal.c
+++ b/drivers/net/wireless/rsi/rsi_91x_hal.c
@@ -203,7 +203,7 @@ int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
 		wh->frame_control |= cpu_to_le16(RSI_SET_PS_ENABLE);
 
 	if ((!(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) &&
-	    info->control.hw_key) {
+	    tx_params->have_key) {
 		if (rsi_is_cipher_wep(common))
 			ieee80211_size += 4;
 		else
diff --git a/drivers/net/wireless/rsi/rsi_main.h b/drivers/net/wireless/rsi/rsi_main.h
index f7a4636b7bca8..526e60e02125c 100644
--- a/drivers/net/wireless/rsi/rsi_main.h
+++ b/drivers/net/wireless/rsi/rsi_main.h
@@ -139,6 +139,7 @@ struct skb_info {
 	u8 internal_hdr_size;
 	struct ieee80211_vif *vif;
 	u8 vap_id;
+	bool have_key;
 };
 
 enum edca_queue {
-- 
GitLab


From d69ffec3aa22825be17a8c1611e101a269fa6030 Mon Sep 17 00:00:00 2001
From: Martin Fuzzey <martin.fuzzey@flowbird.group>
Date: Mon, 30 Aug 2021 17:26:46 +0200
Subject: [PATCH 1040/4878] rsi: fix rate mask set leading to P2P failure

commit b515d097053a71d624e0c5840b42cd4caa653941 upstream.

P2P client mode was only working the first time.
On subsequent connection attempts the group was successfully created but
no data was sent (no transmitted data packets were seen with a sniffer).

The reason for this was that the hardware was being configured in fixed
rate mode with rate RSI_RATE_1 (1Mbps) which is not valid in the 5GHz band.

In P2P mode wpa_supplicant uses NL80211_CMD_SET_TX_BITRATE_MASK to disallow
the 11b rates in the 2.4GHz band which updated common->fixedrate_mask.

rsi_set_min_rate() then used the fixedrate_mask to calculate the minimum
allowed rate, or 0xffff = auto if none was found.
However that calculation did not account for the different rate sets
allowed in the different bands leading to the error.

Fixing set_min_rate() would result in 6Mb/s being used all the time
which is not what we want either.

The reason the problem did not occur on the first connection is that
rsi_mac80211_set_rate_mask() only updated the fixedrate_mask for
the *current* band. When it was called that was still 2.4GHz as the
switch is done later. So the when set_min_rate() was subsequently
called after the switch to 5GHz it still had a mask of zero, leading
to defaulting to auto mode.

Fix this by differentiating the case of a single rate being
requested, in which case the hardware will be used in fixed rate
mode with just that rate, and multiple rates being requested,
in which case we remain in auto mode but the firmware rate selection
algorithm is configured with a restricted set of rates.

Fixes: dad0d04fa7ba ("rsi: Add RS9113 wireless driver")
Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
CC: stable@vger.kernel.org
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1630337206-12410-4-git-send-email-martin.fuzzey@flowbird.group
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/rsi/rsi_91x_hal.c      |  8 ++-
 drivers/net/wireless/rsi/rsi_91x_mac80211.c | 74 ++++++---------------
 drivers/net/wireless/rsi/rsi_91x_mgmt.c     | 21 ++++--
 drivers/net/wireless/rsi/rsi_main.h         | 12 +++-
 4 files changed, 50 insertions(+), 65 deletions(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c
index 2aa9f0b128396..dca81a4bbdd7f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_hal.c
+++ b/drivers/net/wireless/rsi/rsi_91x_hal.c
@@ -214,15 +214,17 @@ int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
 			RSI_WIFI_DATA_Q);
 	data_desc->header_len = ieee80211_size;
 
-	if (common->min_rate != RSI_RATE_AUTO) {
+	if (common->rate_config[common->band].fixed_enabled) {
 		/* Send fixed rate */
+		u16 fixed_rate = common->rate_config[common->band].fixed_hw_rate;
+
 		data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE);
-		data_desc->rate_info = cpu_to_le16(common->min_rate);
+		data_desc->rate_info = cpu_to_le16(fixed_rate);
 
 		if (conf_is_ht40(&common->priv->hw->conf))
 			data_desc->bbp_info = cpu_to_le16(FULL40M_ENABLE);
 
-		if ((common->vif_info[0].sgi) && (common->min_rate & 0x100)) {
+		if (common->vif_info[0].sgi && (fixed_rate & 0x100)) {
 		       /* Only MCS rates */
 			data_desc->rate_info |=
 				cpu_to_le16(ENABLE_SHORTGI_RATE);
diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
index 57c9e3559dfd1..8abf9f699db17 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
@@ -510,7 +510,6 @@ static int rsi_mac80211_add_interface(struct ieee80211_hw *hw,
 	if ((vif->type == NL80211_IFTYPE_AP) ||
 	    (vif->type == NL80211_IFTYPE_P2P_GO)) {
 		rsi_send_rx_filter_frame(common, DISALLOW_BEACONS);
-		common->min_rate = RSI_RATE_AUTO;
 		for (i = 0; i < common->max_stations; i++)
 			common->stations[i].sta = NULL;
 	}
@@ -1211,20 +1210,32 @@ static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw,
 				      struct ieee80211_vif *vif,
 				      const struct cfg80211_bitrate_mask *mask)
 {
+	const unsigned int mcs_offset = ARRAY_SIZE(rsi_rates);
 	struct rsi_hw *adapter = hw->priv;
 	struct rsi_common *common = adapter->priv;
-	enum nl80211_band band = hw->conf.chandef.chan->band;
+	int i;
 
 	mutex_lock(&common->mutex);
-	common->fixedrate_mask[band] = 0;
 
-	if (mask->control[band].legacy == 0xfff) {
-		common->fixedrate_mask[band] =
-			(mask->control[band].ht_mcs[0] << 12);
-	} else {
-		common->fixedrate_mask[band] =
-			mask->control[band].legacy;
+	for (i = 0; i < ARRAY_SIZE(common->rate_config); i++) {
+		struct rsi_rate_config *cfg = &common->rate_config[i];
+		u32 bm;
+
+		bm = mask->control[i].legacy | (mask->control[i].ht_mcs[0] << mcs_offset);
+		if (hweight32(bm) == 1) { /* single rate */
+			int rate_index = ffs(bm) - 1;
+
+			if (rate_index < mcs_offset)
+				cfg->fixed_hw_rate = rsi_rates[rate_index].hw_value;
+			else
+				cfg->fixed_hw_rate = rsi_mcsrates[rate_index - mcs_offset];
+			cfg->fixed_enabled = true;
+		} else {
+			cfg->configured_mask = bm;
+			cfg->fixed_enabled = false;
+		}
 	}
+
 	mutex_unlock(&common->mutex);
 
 	return 0;
@@ -1361,46 +1372,6 @@ void rsi_indicate_pkt_to_os(struct rsi_common *common,
 	ieee80211_rx_irqsafe(hw, skb);
 }
 
-static void rsi_set_min_rate(struct ieee80211_hw *hw,
-			     struct ieee80211_sta *sta,
-			     struct rsi_common *common)
-{
-	u8 band = hw->conf.chandef.chan->band;
-	u8 ii;
-	u32 rate_bitmap;
-	bool matched = false;
-
-	common->bitrate_mask[band] = sta->supp_rates[band];
-
-	rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]);
-
-	if (rate_bitmap & 0xfff) {
-		/* Find out the min rate */
-		for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) {
-			if (rate_bitmap & BIT(ii)) {
-				common->min_rate = rsi_rates[ii].hw_value;
-				matched = true;
-				break;
-			}
-		}
-	}
-
-	common->vif_info[0].is_ht = sta->ht_cap.ht_supported;
-
-	if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) {
-		for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) {
-			if ((rate_bitmap >> 12) & BIT(ii)) {
-				common->min_rate = rsi_mcsrates[ii];
-				matched = true;
-				break;
-			}
-		}
-	}
-
-	if (!matched)
-		common->min_rate = 0xffff;
-}
-
 /**
  * rsi_mac80211_sta_add() - This function notifies driver about a peer getting
  *			    connected.
@@ -1499,9 +1470,9 @@ static int rsi_mac80211_sta_add(struct ieee80211_hw *hw,
 
 	if ((vif->type == NL80211_IFTYPE_STATION) ||
 	    (vif->type == NL80211_IFTYPE_P2P_CLIENT)) {
-		rsi_set_min_rate(hw, sta, common);
+		common->bitrate_mask[common->band] = sta->supp_rates[common->band];
+		common->vif_info[0].is_ht = sta->ht_cap.ht_supported;
 		if (sta->ht_cap.ht_supported) {
-			common->vif_info[0].is_ht = true;
 			common->bitrate_mask[NL80211_BAND_2GHZ] =
 					sta->supp_rates[NL80211_BAND_2GHZ];
 			if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ||
@@ -1575,7 +1546,6 @@ static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw,
 		bss->qos = sta->wme;
 		common->bitrate_mask[NL80211_BAND_2GHZ] = 0;
 		common->bitrate_mask[NL80211_BAND_5GHZ] = 0;
-		common->min_rate = 0xffff;
 		common->vif_info[0].is_ht = false;
 		common->vif_info[0].sgi = false;
 		common->vif_info[0].seq_start = 0;
diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
index 275370d37880c..9000a5d510034 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -276,7 +276,7 @@ static void rsi_set_default_parameters(struct rsi_common *common)
 	common->channel_width = BW_20MHZ;
 	common->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 	common->channel = 1;
-	common->min_rate = 0xffff;
+	memset(&common->rate_config, 0, sizeof(common->rate_config));
 	common->fsm_state = FSM_CARD_NOT_READY;
 	common->iface_down = true;
 	common->endpoint = EP_2GHZ_20MHZ;
@@ -1314,7 +1314,7 @@ static int rsi_send_auto_rate_request(struct rsi_common *common,
 	u8 band = hw->conf.chandef.chan->band;
 	u8 num_supported_rates = 0;
 	u8 rate_table_offset, rate_offset = 0;
-	u32 rate_bitmap;
+	u32 rate_bitmap, configured_rates;
 	u16 *selected_rates, min_rate;
 	bool is_ht = false, is_sgi = false;
 	u16 frame_len = sizeof(struct rsi_auto_rate);
@@ -1364,6 +1364,10 @@ static int rsi_send_auto_rate_request(struct rsi_common *common,
 			is_sgi = true;
 	}
 
+	/* Limit to any rates administratively configured by cfg80211 */
+	configured_rates = common->rate_config[band].configured_mask ?: 0xffffffff;
+	rate_bitmap &= configured_rates;
+
 	if (band == NL80211_BAND_2GHZ) {
 		if ((rate_bitmap == 0) && (is_ht))
 			min_rate = RSI_RATE_MCS0;
@@ -1389,10 +1393,13 @@ static int rsi_send_auto_rate_request(struct rsi_common *common,
 	num_supported_rates = jj;
 
 	if (is_ht) {
-		for (ii = 0; ii < ARRAY_SIZE(mcs); ii++)
-			selected_rates[jj++] = mcs[ii];
-		num_supported_rates += ARRAY_SIZE(mcs);
-		rate_offset += ARRAY_SIZE(mcs);
+		for (ii = 0; ii < ARRAY_SIZE(mcs); ii++) {
+			if (configured_rates & BIT(ii + ARRAY_SIZE(rsi_rates))) {
+				selected_rates[jj++] = mcs[ii];
+				num_supported_rates++;
+				rate_offset++;
+			}
+		}
 	}
 
 	sort(selected_rates, jj, sizeof(u16), &rsi_compare, NULL);
@@ -1482,7 +1489,7 @@ void rsi_inform_bss_status(struct rsi_common *common,
 					      qos_enable,
 					      aid, sta_id,
 					      vif);
-		if (common->min_rate == 0xffff)
+		if (!common->rate_config[common->band].fixed_enabled)
 			rsi_send_auto_rate_request(common, sta, sta_id, vif);
 		if (opmode == RSI_OPMODE_STA &&
 		    !(assoc_cap & WLAN_CAPABILITY_PRIVACY) &&
diff --git a/drivers/net/wireless/rsi/rsi_main.h b/drivers/net/wireless/rsi/rsi_main.h
index 526e60e02125c..de595025c0197 100644
--- a/drivers/net/wireless/rsi/rsi_main.h
+++ b/drivers/net/wireless/rsi/rsi_main.h
@@ -61,6 +61,7 @@ enum RSI_FSM_STATES {
 extern u32 rsi_zone_enabled;
 extern __printf(2, 3) void rsi_dbg(u32 zone, const char *fmt, ...);
 
+#define RSI_MAX_BANDS			2
 #define RSI_MAX_VIFS                    3
 #define NUM_EDCA_QUEUES                 4
 #define IEEE80211_ADDR_LEN              6
@@ -230,6 +231,12 @@ struct rsi_9116_features {
 	u32 ps_options;
 };
 
+struct rsi_rate_config {
+	u32 configured_mask;	/* configured by mac80211 bits 0-11=legacy 12+ mcs */
+	u16 fixed_hw_rate;
+	bool fixed_enabled;
+};
+
 struct rsi_common {
 	struct rsi_hw *priv;
 	struct vif_priv vif_info[RSI_MAX_VIFS];
@@ -255,8 +262,8 @@ struct rsi_common {
 	u8 channel_width;
 
 	u16 rts_threshold;
-	u16 bitrate_mask[2];
-	u32 fixedrate_mask[2];
+	u32 bitrate_mask[RSI_MAX_BANDS];
+	struct rsi_rate_config rate_config[RSI_MAX_BANDS];
 
 	u8 rf_reset;
 	struct transmit_q_stats tx_stats;
@@ -277,7 +284,6 @@ struct rsi_common {
 	u8 mac_id;
 	u8 radio_id;
 	u16 rate_pwr[20];
-	u16 min_rate;
 
 	/* WMM algo related */
 	u8 selected_qnum;
-- 
GitLab


From da8b3b95c57fd96baafdda2334f0c0cdfe827b9e Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Thu, 16 Sep 2021 16:42:45 +0200
Subject: [PATCH 1041/4878] rsi: Fix module dev_oper_mode parameter description

commit 31f97cf9f0c31143a2a6fcc89c4a1286ce20157e upstream.

The module parameters are missing dev_oper_mode 12, BT classic alone,
add it. Moreover, the parameters encode newlines, which ends up being
printed malformed e.g. by modinfo, so fix that too.

However, the module parameter string is duplicated in both USB and SDIO
modules and the dev_oper_mode mode enumeration in those module parameters
is a duplicate of macros used by the driver. Furthermore, the enumeration
is confusing.

So, deduplicate the module parameter string and use __stringify() to
encode the correct mode enumeration values into the module parameter
string. Finally, replace 'Wi-Fi' with 'Wi-Fi alone' and 'BT' with
'BT classic alone' to clarify what those modes really mean.

Fixes: 898b255339310 ("rsi: add module parameter operating mode")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Cc: Angus Ainslie <angus@akkea.ca>
Cc: David S. Miller <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Karun Eagalapati <karun256@gmail.com>
Cc: Martin Fuzzey <martin.fuzzey@flowbird.group>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Cc: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Cc: Siva Rebbagondla <siva8118@gmail.com>
Cc: netdev@vger.kernel.org
Cc: <stable@vger.kernel.org> # 4.17+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210916144245.10181-1-marex@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/rsi/rsi_91x_sdio.c |  5 +----
 drivers/net/wireless/rsi/rsi_91x_usb.c  |  5 +----
 drivers/net/wireless/rsi/rsi_hal.h      | 11 +++++++++++
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio.c b/drivers/net/wireless/rsi/rsi_91x_sdio.c
index 3a243c5326471..8108f941ccd3f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_sdio.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c
@@ -24,10 +24,7 @@
 /* Default operating mode is wlan STA + BT */
 static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL;
 module_param(dev_oper_mode, ushort, 0444);
-MODULE_PARM_DESC(dev_oper_mode,
-		 "1[Wi-Fi], 4[BT], 8[BT LE], 5[Wi-Fi STA + BT classic]\n"
-		 "9[Wi-Fi STA + BT LE], 13[Wi-Fi STA + BT classic + BT LE]\n"
-		 "6[AP + BT classic], 14[AP + BT classic + BT LE]");
+MODULE_PARM_DESC(dev_oper_mode, DEV_OPMODE_PARAM_DESC);
 
 /**
  * rsi_sdio_set_cmd52_arg() - This function prepares cmd 52 read/write arg.
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 983045ad79dcf..d881df9ebd0c3 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -25,10 +25,7 @@
 /* Default operating mode is wlan STA + BT */
 static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL;
 module_param(dev_oper_mode, ushort, 0444);
-MODULE_PARM_DESC(dev_oper_mode,
-		 "1[Wi-Fi], 4[BT], 8[BT LE], 5[Wi-Fi STA + BT classic]\n"
-		 "9[Wi-Fi STA + BT LE], 13[Wi-Fi STA + BT classic + BT LE]\n"
-		 "6[AP + BT classic], 14[AP + BT classic + BT LE]");
+MODULE_PARM_DESC(dev_oper_mode, DEV_OPMODE_PARAM_DESC);
 
 static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t flags);
 
diff --git a/drivers/net/wireless/rsi/rsi_hal.h b/drivers/net/wireless/rsi/rsi_hal.h
index 46e36df9e8e3c..a2fbec1cec4c3 100644
--- a/drivers/net/wireless/rsi/rsi_hal.h
+++ b/drivers/net/wireless/rsi/rsi_hal.h
@@ -28,6 +28,17 @@
 #define DEV_OPMODE_AP_BT		6
 #define DEV_OPMODE_AP_BT_DUAL		14
 
+#define DEV_OPMODE_PARAM_DESC		\
+	__stringify(DEV_OPMODE_WIFI_ALONE)	"[Wi-Fi alone], "	\
+	__stringify(DEV_OPMODE_BT_ALONE)	"[BT classic alone], "	\
+	__stringify(DEV_OPMODE_BT_LE_ALONE)	"[BT LE alone], "	\
+	__stringify(DEV_OPMODE_BT_DUAL)		"[BT classic + BT LE alone], " \
+	__stringify(DEV_OPMODE_STA_BT)		"[Wi-Fi STA + BT classic], " \
+	__stringify(DEV_OPMODE_STA_BT_LE)	"[Wi-Fi STA + BT LE], "	\
+	__stringify(DEV_OPMODE_STA_BT_DUAL)	"[Wi-Fi STA + BT classic + BT LE], " \
+	__stringify(DEV_OPMODE_AP_BT)		"[Wi-Fi AP + BT classic], "	\
+	__stringify(DEV_OPMODE_AP_BT_DUAL)	"[Wi-Fi AP + BT classic + BT LE]"
+
 #define FLASH_WRITE_CHUNK_SIZE		(4 * 1024)
 #define FLASH_SECTOR_SIZE		(4 * 1024)
 
-- 
GitLab


From aef1a67fbf4923a21e5de6353a137ed60e2c61ed Mon Sep 17 00:00:00 2001
From: Kan Liang <kan.liang@linux.intel.com>
Date: Thu, 26 Aug 2021 08:32:37 -0700
Subject: [PATCH 1042/4878] perf/x86/intel/uncore: Support extra IMC channel on
 Ice Lake server

commit 496a18f09374ad89b3ab4366019bc3975db90234 upstream.

There are three channels on a Ice Lake server, but only two channels
will ever be active. Current perf only enables two channels.

Support the extra IMC channel, which may be activated on some Ice Lake
machines. For a non-activated channel, the SW can still access it. The
write will be ignored by the HW. 0 is always returned for the reading.

Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1629991963-102621-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/intel/uncore_snbep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 2701f87a9a7c6..3777b560ea4d6 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -444,7 +444,7 @@
 #define ICX_M3UPI_PCI_PMON_BOX_CTL		0xa0
 
 /* ICX IMC */
-#define ICX_NUMBER_IMC_CHN			2
+#define ICX_NUMBER_IMC_CHN			3
 #define ICX_IMC_MEM_STRIDE			0x4
 
 DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
@@ -5228,7 +5228,7 @@ static struct intel_uncore_ops icx_uncore_mmio_ops = {
 static struct intel_uncore_type icx_uncore_imc = {
 	.name		= "imc",
 	.num_counters   = 4,
-	.num_boxes	= 8,
+	.num_boxes	= 12,
 	.perf_ctr_bits	= 48,
 	.fixed_ctr_bits	= 48,
 	.fixed_ctr	= SNR_IMC_MMIO_PMON_FIXED_CTR,
-- 
GitLab


From 30cdf50357695b89d879a345e9b3afb186f64aff Mon Sep 17 00:00:00 2001
From: Kan Liang <kan.liang@linux.intel.com>
Date: Thu, 26 Aug 2021 08:32:39 -0700
Subject: [PATCH 1043/4878] perf/x86/intel/uncore: Fix Intel ICX IIO event
 constraints

commit f42e8a603c88f72bf047a710b9fc1d3579f31e71 upstream.

According to the latest uncore document, both NUM_OUTSTANDING_REQ_OF_CPU
(0x88) event and COMP_BUF_OCCUPANCY(0xd5) event also have constraints. Add
them into the event constraints table.

Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support")
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1629991963-102621-4-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/intel/uncore_snbep.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 3777b560ea4d6..c01b51d1cbdff 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -4898,8 +4898,10 @@ static struct event_constraint icx_uncore_iio_constraints[] = {
 	UNCORE_EVENT_CONSTRAINT(0x02, 0x3),
 	UNCORE_EVENT_CONSTRAINT(0x03, 0x3),
 	UNCORE_EVENT_CONSTRAINT(0x83, 0x3),
+	UNCORE_EVENT_CONSTRAINT(0x88, 0xc),
 	UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
 	UNCORE_EVENT_CONSTRAINT(0xc5, 0xc),
+	UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
 	EVENT_CONSTRAINT_END
 };
 
-- 
GitLab


From 5c6fedce4a6a6a9739926a0c28d53ff41e256d08 Mon Sep 17 00:00:00 2001
From: Alok Prasad <palok@marvell.com>
Date: Wed, 27 Oct 2021 18:43:29 +0000
Subject: [PATCH 1044/4878] RDMA/qedr: Fix NULL deref for query_qp on the GSI
 QP

commit 4f960393a0ee9a39469ceb7c8077ae8db665cc12 upstream.

This patch fixes a crash caused by querying the QP via netlink, and
corrects the state of GSI qp. GSI qp's have a NULL qed_qp.

The call trace is generated by:
 $ rdma res show

 BUG: kernel NULL pointer dereference, address: 0000000000000034
 Hardware name: Dell Inc. PowerEdge R720/0M1GCR, BIOS 1.2.6 05/10/2012
 RIP: 0010:qed_rdma_query_qp+0x33/0x1a0 [qed]
 RSP: 0018:ffffba560a08f580 EFLAGS: 00010206
 RAX: 0000000200000000 RBX: ffffba560a08f5b8 RCX: 0000000000000000
 RDX: ffffba560a08f5b8 RSI: 0000000000000000 RDI: ffff9807ee458090
 RBP: ffffba560a08f5a0 R08: 0000000000000000 R09: ffff9807890e7048
 R10: ffffba560a08f658 R11: 0000000000000000 R12: 0000000000000000
 R13: ffff9807ee458090 R14: ffff9807f0afb000 R15: ffffba560a08f7ec
 FS:  00007fbbf8bfe740(0000) GS:ffff980aafa00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000034 CR3: 00000001720ba001 CR4: 00000000000606f0
 Call Trace:
  qedr_query_qp+0x82/0x360 [qedr]
  ib_query_qp+0x34/0x40 [ib_core]
  ? ib_query_qp+0x34/0x40 [ib_core]
  fill_res_qp_entry_query.isra.26+0x47/0x1d0 [ib_core]
  ? __nla_put+0x20/0x30
  ? nla_put+0x33/0x40
  fill_res_qp_entry+0xe3/0x120 [ib_core]
  res_get_common_dumpit+0x3f8/0x5d0 [ib_core]
  ? fill_res_cm_id_entry+0x1f0/0x1f0 [ib_core]
  nldev_res_get_qp_dumpit+0x1a/0x20 [ib_core]
  netlink_dump+0x156/0x2f0
  __netlink_dump_start+0x1ab/0x260
  rdma_nl_rcv+0x1de/0x330 [ib_core]
  ? nldev_res_get_cm_id_dumpit+0x20/0x20 [ib_core]
  netlink_unicast+0x1b8/0x270
  netlink_sendmsg+0x33e/0x470
  sock_sendmsg+0x63/0x70
  __sys_sendto+0x13f/0x180
  ? setup_sgl.isra.12+0x70/0xc0
  __x64_sys_sendto+0x28/0x30
  do_syscall_64+0x3a/0xb0
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Cc: stable@vger.kernel.org
Fixes: cecbcddf6461 ("qedr: Add support for QP verbs")
Link: https://lore.kernel.org/r/20211027184329.18454-1-palok@marvell.com
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/qedr/verbs.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index cdfb7732dff3e..16d5283651894 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -2744,15 +2744,18 @@ int qedr_query_qp(struct ib_qp *ibqp,
 	int rc = 0;
 
 	memset(&params, 0, sizeof(params));
-
-	rc = dev->ops->rdma_query_qp(dev->rdma_ctx, qp->qed_qp, &params);
-	if (rc)
-		goto err;
-
 	memset(qp_attr, 0, sizeof(*qp_attr));
 	memset(qp_init_attr, 0, sizeof(*qp_init_attr));
 
-	qp_attr->qp_state = qedr_get_ibqp_state(params.state);
+	if (qp->qp_type != IB_QPT_GSI) {
+		rc = dev->ops->rdma_query_qp(dev->rdma_ctx, qp->qed_qp, &params);
+		if (rc)
+			goto err;
+		qp_attr->qp_state = qedr_get_ibqp_state(params.state);
+	} else {
+		qp_attr->qp_state = qedr_get_ibqp_state(QED_ROCE_QP_STATE_RTS);
+	}
+
 	qp_attr->cur_qp_state = qedr_get_ibqp_state(params.state);
 	qp_attr->path_mtu = ib_mtu_int_to_enum(params.mtu);
 	qp_attr->path_mig_state = IB_MIG_MIGRATED;
-- 
GitLab


From 4fbecebb31c7071ec6047a978ae6dae092c09d19 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Wed, 1 Sep 2021 13:21:34 -0500
Subject: [PATCH 1045/4878] signal: Remove the bogus sigkill_pending in
 ptrace_stop

commit 7d613f9f72ec8f90ddefcae038fdae5adb8404b3 upstream.

The existence of sigkill_pending is a little silly as it is
functionally a duplicate of fatal_signal_pending that is used in
exactly one place.

Checking for pending fatal signals and returning early in ptrace_stop
is actively harmful.  It casues the ptrace_stop called by
ptrace_signal to return early before setting current->exit_code.
Later when ptrace_signal reads the signal number from
current->exit_code is undefined, making it unpredictable what will
happen.

Instead rely on the fact that schedule will not sleep if there is a
pending signal that can awaken a task.

Removing the explict sigkill_pending test fixes fixes ptrace_signal
when ptrace_stop does not stop because current->exit_code is always
set to to signr.

Cc: stable@vger.kernel.org
Fixes: 3d749b9e676b ("ptrace: simplify ptrace_stop()->sigkill_pending() path")
Fixes: 1a669c2f16d4 ("Add arch_ptrace_stop")
Link: https://lkml.kernel.org/r/87pmsyx29t.fsf@disp2133
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/signal.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index ef8f2a28d37c5..6bb2df4f6109d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2097,15 +2097,6 @@ static inline bool may_ptrace_stop(void)
 	return true;
 }
 
-/*
- * Return non-zero if there is a SIGKILL that should be waking us up.
- * Called with the siglock held.
- */
-static bool sigkill_pending(struct task_struct *tsk)
-{
-	return sigismember(&tsk->pending.signal, SIGKILL) ||
-	       sigismember(&tsk->signal->shared_pending.signal, SIGKILL);
-}
 
 /*
  * This must be called with current->sighand->siglock held.
@@ -2132,17 +2123,16 @@ static void ptrace_stop(int exit_code, int why, int clear_code, kernel_siginfo_t
 		 * calling arch_ptrace_stop, so we must release it now.
 		 * To preserve proper semantics, we must do this before
 		 * any signal bookkeeping like checking group_stop_count.
-		 * Meanwhile, a SIGKILL could come in before we retake the
-		 * siglock.  That must prevent us from sleeping in TASK_TRACED.
-		 * So after regaining the lock, we must check for SIGKILL.
 		 */
 		spin_unlock_irq(&current->sighand->siglock);
 		arch_ptrace_stop(exit_code, info);
 		spin_lock_irq(&current->sighand->siglock);
-		if (sigkill_pending(current))
-			return;
 	}
 
+	/*
+	 * schedule() will not sleep if there is a pending signal that
+	 * can awaken the task.
+	 */
 	set_special_state(TASK_TRACED);
 
 	/*
-- 
GitLab


From 5e63b85a489d18f1c27bd6dbfc4dd1073f95e327 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Wed, 22 Sep 2021 11:10:06 +0200
Subject: [PATCH 1046/4878] memory: renesas-rpc-if: Correct QSPI data transfer
 in Manual mode

commit fff53a551db50f5edecaa0b29a64056ab8d2bbca upstream.

This patch fixes 2 problems:
[1] The output warning logs and data loss when performing
mount/umount then remount the device with jffs2 format.
[2] The access width of SMWDR[0:1]/SMRDR[0:1] register is wrong.

This is the sample warning logs when performing mount/umount then
remount the device with jffs2 format:
jffs2: jffs2_scan_inode_node(): CRC failed on node at 0x031c51d4:
Read 0x00034e00, calculated 0xadb272a7

The reason for issue [1] is that the writing data seems to
get messed up.
Data is only completed when the number of bytes is divisible by 4.
If you only have 3 bytes of data left to write, 1 garbage byte
is inserted after the end of the write stream.
If you only have 2 bytes of data left to write, 2 bytes of '00'
are added into the write stream.
If you only have 1 byte of data left to write, 2 bytes of '00'
are added into the write stream. 1 garbage byte is inserted after
the end of the write stream.

To solve problem [1], data must be written continuously in serial
and the write stream ends when data is out.

Following HW manual 62.2.15, access to SMWDR0 register should be
in the same size as the transfer size specified in the SPIDE[3:0]
bits in the manual mode enable setting register (SMENR).
Be sure to access from address 0.

So, in 16-bit transfer (SPIDE[3:0]=b'1100), SMWDR0 should be
accessed by 16-bit width.
Similar to SMWDR1, SMDDR0/1 registers.
In current code, SMWDR0 register is accessed by regmap_write()
that only set up to do 32-bit width.

To solve problem [2], data must be written 16-bit or 8-bit when
transferring 1-byte or 2-byte.

Fixes: ca7d8b980b67 ("memory: add Renesas RPC-IF driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Duc Nguyen <duc.nguyen.ub@renesas.com>
[wsa: refactored to use regmap only via reg_read/reg_write]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20210922091007.5516-1-wsa+renesas@sang-engineering.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/memory/renesas-rpc-if.c | 113 ++++++++++++++++++++++----------
 include/memory/renesas-rpc-if.h |   1 +
 2 files changed, 79 insertions(+), 35 deletions(-)

diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index 1fe6c35b7503e..a760ab08256ff 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -161,10 +161,62 @@ static const struct regmap_access_table rpcif_volatile_table = {
 	.n_yes_ranges	= ARRAY_SIZE(rpcif_volatile_ranges),
 };
 
+
+/*
+ * Custom accessor functions to ensure SMRDR0 and SMWDR0 are always accessed
+ * with proper width. Requires SMENR_SPIDE to be correctly set before!
+ */
+static int rpcif_reg_read(void *context, unsigned int reg, unsigned int *val)
+{
+	struct rpcif *rpc = context;
+
+	if (reg == RPCIF_SMRDR0 || reg == RPCIF_SMWDR0) {
+		u32 spide = readl(rpc->base + RPCIF_SMENR) & RPCIF_SMENR_SPIDE(0xF);
+
+		if (spide == 0x8) {
+			*val = readb(rpc->base + reg);
+			return 0;
+		} else if (spide == 0xC) {
+			*val = readw(rpc->base + reg);
+			return 0;
+		} else if (spide != 0xF) {
+			return -EILSEQ;
+		}
+	}
+
+	*val = readl(rpc->base + reg);
+	return 0;
+
+}
+
+static int rpcif_reg_write(void *context, unsigned int reg, unsigned int val)
+{
+	struct rpcif *rpc = context;
+
+	if (reg == RPCIF_SMRDR0 || reg == RPCIF_SMWDR0) {
+		u32 spide = readl(rpc->base + RPCIF_SMENR) & RPCIF_SMENR_SPIDE(0xF);
+
+		if (spide == 0x8) {
+			writeb(val, rpc->base + reg);
+			return 0;
+		} else if (spide == 0xC) {
+			writew(val, rpc->base + reg);
+			return 0;
+		} else if (spide != 0xF) {
+			return -EILSEQ;
+		}
+	}
+
+	writel(val, rpc->base + reg);
+	return 0;
+}
+
 static const struct regmap_config rpcif_regmap_config = {
 	.reg_bits	= 32,
 	.val_bits	= 32,
 	.reg_stride	= 4,
+	.reg_read	= rpcif_reg_read,
+	.reg_write	= rpcif_reg_write,
 	.fast_io	= true,
 	.max_register	= RPCIF_PHYINT,
 	.volatile_table	= &rpcif_volatile_table,
@@ -174,17 +226,15 @@ int rpcif_sw_init(struct rpcif *rpc, struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct resource *res;
-	void __iomem *base;
 
 	rpc->dev = dev;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
-	base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
+	rpc->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(rpc->base))
+		return PTR_ERR(rpc->base);
 
-	rpc->regmap = devm_regmap_init_mmio(&pdev->dev, base,
-					    &rpcif_regmap_config);
+	rpc->regmap = devm_regmap_init(&pdev->dev, NULL, rpc, &rpcif_regmap_config);
 	if (IS_ERR(rpc->regmap)) {
 		dev_err(&pdev->dev,
 			"failed to init regmap for rpcif, error %ld\n",
@@ -367,20 +417,16 @@ void rpcif_prepare(struct rpcif *rpc, const struct rpcif_op *op, u64 *offs,
 			nbytes = op->data.nbytes;
 		rpc->xferlen = nbytes;
 
-		rpc->enable |= RPCIF_SMENR_SPIDE(rpcif_bits_set(rpc, nbytes)) |
-			RPCIF_SMENR_SPIDB(rpcif_bit_size(op->data.buswidth));
+		rpc->enable |= RPCIF_SMENR_SPIDB(rpcif_bit_size(op->data.buswidth));
 	}
 }
 EXPORT_SYMBOL(rpcif_prepare);
 
 int rpcif_manual_xfer(struct rpcif *rpc)
 {
-	u32 smenr, smcr, pos = 0, max = 4;
+	u32 smenr, smcr, pos = 0, max = rpc->bus_size == 2 ? 8 : 4;
 	int ret = 0;
 
-	if (rpc->bus_size == 2)
-		max = 8;
-
 	pm_runtime_get_sync(rpc->dev);
 
 	regmap_update_bits(rpc->regmap, RPCIF_PHYCNT,
@@ -391,37 +437,36 @@ int rpcif_manual_xfer(struct rpcif *rpc)
 	regmap_write(rpc->regmap, RPCIF_SMOPR, rpc->option);
 	regmap_write(rpc->regmap, RPCIF_SMDMCR, rpc->dummy);
 	regmap_write(rpc->regmap, RPCIF_SMDRENR, rpc->ddr);
+	regmap_write(rpc->regmap, RPCIF_SMADR, rpc->smadr);
 	smenr = rpc->enable;
 
 	switch (rpc->dir) {
 	case RPCIF_DATA_OUT:
 		while (pos < rpc->xferlen) {
-			u32 nbytes = rpc->xferlen - pos;
-			u32 data[2];
+			u32 bytes_left = rpc->xferlen - pos;
+			u32 nbytes, data[2];
 
 			smcr = rpc->smcr | RPCIF_SMCR_SPIE;
-			if (nbytes > max) {
-				nbytes = max;
+
+			/* nbytes may only be 1, 2, 4, or 8 */
+			nbytes = bytes_left >= max ? max : (1 << ilog2(bytes_left));
+			if (bytes_left > nbytes)
 				smcr |= RPCIF_SMCR_SSLKP;
-			}
+
+			smenr |= RPCIF_SMENR_SPIDE(rpcif_bits_set(rpc, nbytes));
+			regmap_write(rpc->regmap, RPCIF_SMENR, smenr);
 
 			memcpy(data, rpc->buffer + pos, nbytes);
-			if (nbytes > 4) {
+			if (nbytes == 8) {
 				regmap_write(rpc->regmap, RPCIF_SMWDR1,
 					     data[0]);
 				regmap_write(rpc->regmap, RPCIF_SMWDR0,
 					     data[1]);
-			} else if (nbytes > 2) {
+			} else {
 				regmap_write(rpc->regmap, RPCIF_SMWDR0,
 					     data[0]);
-			} else	{
-				regmap_write(rpc->regmap, RPCIF_SMWDR0,
-					     data[0] << 16);
 			}
 
-			regmap_write(rpc->regmap, RPCIF_SMADR,
-				     rpc->smadr + pos);
-			regmap_write(rpc->regmap, RPCIF_SMENR, smenr);
 			regmap_write(rpc->regmap, RPCIF_SMCR, smcr);
 			ret = wait_msg_xfer_end(rpc);
 			if (ret)
@@ -461,14 +506,16 @@ int rpcif_manual_xfer(struct rpcif *rpc)
 			break;
 		}
 		while (pos < rpc->xferlen) {
-			u32 nbytes = rpc->xferlen - pos;
-			u32 data[2];
+			u32 bytes_left = rpc->xferlen - pos;
+			u32 nbytes, data[2];
 
-			if (nbytes > max)
-				nbytes = max;
+			/* nbytes may only be 1, 2, 4, or 8 */
+			nbytes = bytes_left >= max ? max : (1 << ilog2(bytes_left));
 
 			regmap_write(rpc->regmap, RPCIF_SMADR,
 				     rpc->smadr + pos);
+			smenr &= ~RPCIF_SMENR_SPIDE(0xF);
+			smenr |= RPCIF_SMENR_SPIDE(rpcif_bits_set(rpc, nbytes));
 			regmap_write(rpc->regmap, RPCIF_SMENR, smenr);
 			regmap_write(rpc->regmap, RPCIF_SMCR,
 				     rpc->smcr | RPCIF_SMCR_SPIE);
@@ -476,18 +523,14 @@ int rpcif_manual_xfer(struct rpcif *rpc)
 			if (ret)
 				goto err_out;
 
-			if (nbytes > 4) {
+			if (nbytes == 8) {
 				regmap_read(rpc->regmap, RPCIF_SMRDR1,
 					    &data[0]);
 				regmap_read(rpc->regmap, RPCIF_SMRDR0,
 					    &data[1]);
-			} else if (nbytes > 2) {
-				regmap_read(rpc->regmap, RPCIF_SMRDR0,
-					    &data[0]);
-			} else	{
+			} else {
 				regmap_read(rpc->regmap, RPCIF_SMRDR0,
 					    &data[0]);
-				data[0] >>= 16;
 			}
 			memcpy(rpc->buffer + pos, data, nbytes);
 
diff --git a/include/memory/renesas-rpc-if.h b/include/memory/renesas-rpc-if.h
index 9ad136682c476..aceb2c360d3fa 100644
--- a/include/memory/renesas-rpc-if.h
+++ b/include/memory/renesas-rpc-if.h
@@ -58,6 +58,7 @@ struct	rpcif_op {
 
 struct	rpcif {
 	struct device *dev;
+	void __iomem *base;
 	void __iomem *dirmap;
 	struct regmap *regmap;
 	struct reset_control *rstc;
-- 
GitLab


From 62bd9eac5fa203876b064c572aa8ebe8c86b788f Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Wed, 20 Oct 2021 12:43:51 -0500
Subject: [PATCH 1047/4878] signal/mips: Update (_save|_restore)_fp_context to
 fail with -EFAULT

commit 95bf9d646c3c3f95cb0be7e703b371db8da5be68 upstream.

When an instruction to save or restore a register from the stack fails
in _save_fp_context or _restore_fp_context return with -EFAULT.  This
change was made to r2300_fpu.S[1] but it looks like it got lost with
the introduction of EX2[2].  This is also what the other implementation
of _save_fp_context and _restore_fp_context in r4k_fpu.S does, and
what is needed for the callers to be able to handle the error.

Furthermore calling do_exit(SIGSEGV) from bad_stack is wrong because
it does not terminate the entire process it just terminates a single
thread.

As the changed code was the only caller of arch/mips/kernel/syscall.c:bad_stack
remove the problematic and now unused helper function.

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Maciej Rozycki <macro@orcam.me.uk>
Cc: linux-mips@vger.kernel.org
[1] 35938a00ba86 ("MIPS: Fix ISA I FP sigcontext access violation handling")
[2] f92722dc4545 ("MIPS: Correct MIPS I FP sigcontext layout")
Cc: stable@vger.kernel.org
Fixes: f92722dc4545 ("MIPS: Correct MIPS I FP sigcontext layout")
Acked-by: Maciej W. Rozycki <macro@orcam.me.uk>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lkml.kernel.org/r/20211020174406.17889-5-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/mips/kernel/r2300_fpu.S | 4 ++--
 arch/mips/kernel/syscall.c   | 9 ---------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/arch/mips/kernel/r2300_fpu.S b/arch/mips/kernel/r2300_fpu.S
index 12e58053544fc..cbf6db98cfb38 100644
--- a/arch/mips/kernel/r2300_fpu.S
+++ b/arch/mips/kernel/r2300_fpu.S
@@ -29,8 +29,8 @@
 #define EX2(a,b)						\
 9:	a,##b;							\
 	.section __ex_table,"a";				\
-	PTR	9b,bad_stack;					\
-	PTR	9b+4,bad_stack;					\
+	PTR	9b,fault;					\
+	PTR	9b+4,fault;					\
 	.previous
 
 	.set	mips1
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 2afa3eef486a9..5512cd586e6e8 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -240,12 +240,3 @@ SYSCALL_DEFINE3(cachectl, char *, addr, int, nbytes, int, op)
 {
 	return -ENOSYS;
 }
-
-/*
- * If we ever come here the user sp is bad.  Zap the process right away.
- * Due to the bad stack signaling wouldn't work.
- */
-asmlinkage void bad_stack(void)
-{
-	do_exit(SIGSEGV);
-}
-- 
GitLab


From 55c97165adf6dd3939f6925a254e0c44c50dd464 Mon Sep 17 00:00:00 2001
From: Meng Li <Meng.Li@windriver.com>
Date: Tue, 19 Oct 2021 10:32:41 +0800
Subject: [PATCH 1048/4878] soc: fsl: dpio: replace smp_processor_id with
 raw_smp_processor_id

commit e775eb9fc2a4107f03222fa48bc95c2c82427e64 upstream.

When enable debug kernel configs,there will be calltrace as below:

BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
caller is debug_smp_processor_id+0x20/0x30
CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.10.63-yocto-standard #1
Hardware name: NXP Layerscape LX2160ARDB (DT)
Call trace:
 dump_backtrace+0x0/0x1a0
 show_stack+0x24/0x30
 dump_stack+0xf0/0x13c
 check_preemption_disabled+0x100/0x110
 debug_smp_processor_id+0x20/0x30
 dpaa2_io_query_fq_count+0xdc/0x154
 dpaa2_eth_stop+0x144/0x314
 __dev_close_many+0xdc/0x160
 __dev_change_flags+0xe8/0x220
 dev_change_flags+0x30/0x70
 ic_close_devs+0x50/0x78
 ip_auto_config+0xed0/0xf10
 do_one_initcall+0xac/0x460
 kernel_init_freeable+0x30c/0x378
 kernel_init+0x20/0x128
 ret_from_fork+0x10/0x38

Based on comment in the context, it doesn't matter whether
preemption is disable or not. So, replace smp_processor_id()
with raw_smp_processor_id() to avoid above call trace.

Fixes: c89105c9b390 ("staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl")
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/fsl/dpio/dpio-service.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c
index 7351f30305506..779c319a4b820 100644
--- a/drivers/soc/fsl/dpio/dpio-service.c
+++ b/drivers/soc/fsl/dpio/dpio-service.c
@@ -59,7 +59,7 @@ static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d,
 	 * potentially being migrated away.
 	 */
 	if (cpu < 0)
-		cpu = smp_processor_id();
+		cpu = raw_smp_processor_id();
 
 	/* If a specific cpu was requested, pick it up immediately */
 	return dpio_by_cpu[cpu];
-- 
GitLab


From 7e867f8bb3fe234524cc55bdbec9fe2cc5999241 Mon Sep 17 00:00:00 2001
From: Meng Li <Meng.Li@windriver.com>
Date: Tue, 19 Oct 2021 11:05:55 +0800
Subject: [PATCH 1049/4878] soc: fsl: dpio: use the combined functions to
 protect critical zone

commit dc7e5940aad6641bd5ab33ea8b21c4b3904d989f upstream.

In orininal code, use 2 function spin_lock() and local_irq_save() to
protect the critical zone. But when enable the kernel debug config,
there are below inconsistent lock state detected.
================================
WARNING: inconsistent lock state
5.10.63-yocto-standard #1 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
lock_torture_wr/226 [HC0[0]:SC1[5]:HE1:SE0] takes:
ffff002005b2dd80 (&p->access_spinlock){+.?.}-{3:3}, at: qbman_swp_enqueue_multiple_mem_back+0x44/0x270
{SOFTIRQ-ON-W} state was registered at:
  lock_acquire.part.0+0xf8/0x250
  lock_acquire+0x68/0x84
  _raw_spin_lock+0x68/0x90
  qbman_swp_enqueue_multiple_mem_back+0x44/0x270
  ......
  cryptomgr_test+0x38/0x60
  kthread+0x158/0x164
  ret_from_fork+0x10/0x38
irq event stamp: 4498
hardirqs last  enabled at (4498): [<ffff800010fcf980>] _raw_spin_unlock_irqrestore+0x90/0xb0
hardirqs last disabled at (4497): [<ffff800010fcffc4>] _raw_spin_lock_irqsave+0xd4/0xe0
softirqs last  enabled at (4458): [<ffff8000100108c4>] __do_softirq+0x674/0x724
softirqs last disabled at (4465): [<ffff80001005b2a4>] __irq_exit_rcu+0x190/0x19c

other info that might help us debug this:
 Possible unsafe locking scenario:
       CPU0
       ----
  lock(&p->access_spinlock);
  <Interrupt>
    lock(&p->access_spinlock);
 *** DEADLOCK ***

So, in order to avoid deadlock, use the combined functions
spin_lock_irqsave/spin_unlock_irqrestore() to protect critical zone.

Fixes: 3b2abda7d28c ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/fsl/dpio/qbman-portal.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/soc/fsl/dpio/qbman-portal.c b/drivers/soc/fsl/dpio/qbman-portal.c
index 659b4a570d5b5..3d69f56d9b9f4 100644
--- a/drivers/soc/fsl/dpio/qbman-portal.c
+++ b/drivers/soc/fsl/dpio/qbman-portal.c
@@ -732,8 +732,7 @@ int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
 	int i, num_enqueued = 0;
 	unsigned long irq_flags;
 
-	spin_lock(&s->access_spinlock);
-	local_irq_save(irq_flags);
+	spin_lock_irqsave(&s->access_spinlock, irq_flags);
 
 	half_mask = (s->eqcr.pi_ci_mask>>1);
 	full_mask = s->eqcr.pi_ci_mask;
@@ -744,8 +743,7 @@ int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
 		s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
 					eqcr_ci, s->eqcr.ci);
 		if (!s->eqcr.available) {
-			local_irq_restore(irq_flags);
-			spin_unlock(&s->access_spinlock);
+			spin_unlock_irqrestore(&s->access_spinlock, irq_flags);
 			return 0;
 		}
 	}
@@ -784,8 +782,7 @@ int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
 	dma_wmb();
 	qbman_write_register(s, QBMAN_CINH_SWP_EQCR_PI,
 				(QB_RT_BIT)|(s->eqcr.pi)|s->eqcr.pi_vb);
-	local_irq_restore(irq_flags);
-	spin_unlock(&s->access_spinlock);
+	spin_unlock_irqrestore(&s->access_spinlock, irq_flags);
 
 	return num_enqueued;
 }
-- 
GitLab


From 5720436bc7ba3370dc8c9baf0b1b28c93bdd9644 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:47 +0200
Subject: [PATCH 1050/4878] mtd: rawnand: socrates: Keep the driver compatible
 with on-die ECC engines

commit b4ebddd6540d78a7f977b3fea0261bd575c6ffe2 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: b36bf0a0fe5d ("mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-9-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/socrates_nand.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/socrates_nand.c b/drivers/mtd/nand/raw/socrates_nand.c
index 70f8305c9b6e1..fb39cc7ebce03 100644
--- a/drivers/mtd/nand/raw/socrates_nand.c
+++ b/drivers/mtd/nand/raw/socrates_nand.c
@@ -119,9 +119,8 @@ static int socrates_nand_device_ready(struct nand_chip *nand_chip)
 
 static int socrates_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -175,6 +174,13 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 	/* TODO: I have no idea what real delay is. */
 	nand_chip->legacy.chip_delay = 20;	/* 20us command delay time */
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	nand_chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	dev_set_drvdata(&ofdev->dev, host);
 
 	res = nand_scan(nand_chip, 1);
-- 
GitLab


From f2feac81edcdb38435a9ac061c720248166d626f Mon Sep 17 00:00:00 2001
From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Date: Tue, 14 Sep 2021 14:18:06 +0200
Subject: [PATCH 1051/4878] power: supply: max17042_battery: Prevent int
 underflow in set_soc_threshold

commit e660dbb68c6b3f7b9eb8b9775846a44f9798b719 upstream.

max17042_set_soc_threshold gets called with offset set to 1, which means
that minimum threshold value would underflow once SOC got down to 0,
causing invalid alerts from the gauge.

Fixes: e5f3872d2044 ("max17042: Add support for signalling change in SOC")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/max17042_battery.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 69bb0f56e492a..595314f0c4fb4 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -851,7 +851,8 @@ static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off)
 	regmap_read(map, MAX17042_RepSOC, &soc);
 	soc >>= 8;
 	soc_tr = (soc + off) << 8;
-	soc_tr |= (soc - off);
+	if (off < soc)
+		soc_tr |= soc - off;
 	regmap_write(map, MAX17042_SALRT_Th, soc_tr);
 }
 
-- 
GitLab


From 924955df37f25a832b6a690160c611f121257abf Mon Sep 17 00:00:00 2001
From: Henrik Grimler <henrik@grimler.se>
Date: Wed, 29 Sep 2021 20:14:17 +0200
Subject: [PATCH 1052/4878] power: supply: max17042_battery: use VFSOC for
 capacity when no rsns

commit 223a3b82834f036a62aa831f67cbf1f1d644c6e2 upstream.

On Galaxy S3 (i9300/i9305), which has the max17047 fuel gauge and no
current sense resistor (rsns), the RepSOC register does not provide an
accurate state of charge value. The reported value is wrong, and does
not change over time. VFSOC however, which uses the voltage fuel gauge
to determine the state of charge, always shows an accurate value.

For devices without current sense, VFSOC is already used for the
soc-alert (0x0003 is written to MiscCFG register), so with this change
the source of the alert and the PROP_CAPACITY value match.

Fixes: 359ab9f5b154 ("power_supply: Add MAX17042 Fuel Gauge Driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Suggested-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Signed-off-by: Henrik Grimler <henrik@grimler.se>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/max17042_battery.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 595314f0c4fb4..98b2e369f80ec 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -316,7 +316,10 @@ static int max17042_get_property(struct power_supply *psy,
 		val->intval = data * 625 / 8;
 		break;
 	case POWER_SUPPLY_PROP_CAPACITY:
-		ret = regmap_read(map, MAX17042_RepSOC, &data);
+		if (chip->pdata->enable_current_sense)
+			ret = regmap_read(map, MAX17042_RepSOC, &data);
+		else
+			ret = regmap_read(map, MAX17042_VFSOC, &data);
 		if (ret < 0)
 			return ret;
 
-- 
GitLab


From bd37419f4fde95bf08d31588b80f69b99ac07b3f Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Wed, 3 Nov 2021 11:05:45 +0000
Subject: [PATCH 1053/4878] KVM: arm64: Extract ESR_ELx.EC only

commit 8bb084119f1acc2ec55ea085a97231e3ddb30782 upstream.

Since ARMv8.0 the upper 32 bits of ESR_ELx have been RES0, and recently
some of the upper bits gained a meaning and can be non-zero. For
example, when FEAT_LS64 is implemented, ESR_ELx[36:32] contain ISS2,
which for an ST64BV or ST64BV0 can be non-zero. This can be seen in ARM
DDI 0487G.b, page D13-3145, section D13.2.37.

Generally, we must not rely on RES0 bit remaining zero in future, and
when extracting ESR_ELx.EC we must mask out all other bits.

All C code uses the ESR_ELx_EC() macro, which masks out the irrelevant
bits, and therefore no alterations are required to C code to avoid
consuming irrelevant bits.

In a couple of places the KVM assembly extracts ESR_ELx.EC using LSR on
an X register, and so could in theory consume previously RES0 bits. In
both cases this is for comparison with EC values ESR_ELx_EC_HVC32 and
ESR_ELx_EC_HVC64, for which the upper bits of ESR_ELx must currently be
zero, but this could change in future.

This patch adjusts the KVM vectors to use UBFX rather than LSR to
extract ESR_ELx.EC, ensuring these are robust to future additions to
ESR_ELx.

Cc: stable@vger.kernel.org
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211103110545.4613-1-mark.rutland@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/esr.h   | 1 +
 arch/arm64/kvm/hyp/hyp-entry.S | 2 +-
 arch/arm64/kvm/hyp/nvhe/host.S | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h
index 85a3e49f92f4a..4a76f566e44f4 100644
--- a/arch/arm64/include/asm/esr.h
+++ b/arch/arm64/include/asm/esr.h
@@ -68,6 +68,7 @@
 #define ESR_ELx_EC_MAX		(0x3F)
 
 #define ESR_ELx_EC_SHIFT	(26)
+#define ESR_ELx_EC_WIDTH	(6)
 #define ESR_ELx_EC_MASK		(UL(0x3F) << ESR_ELx_EC_SHIFT)
 #define ESR_ELx_EC(esr)		(((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
 
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index 0a5b36eb54b3e..bcbead3746c66 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -43,7 +43,7 @@
 el1_sync:				// Guest trapped into EL2
 
 	mrs	x0, esr_el2
-	lsr	x0, x0, #ESR_ELx_EC_SHIFT
+	ubfx	x0, x0, #ESR_ELx_EC_SHIFT, #ESR_ELx_EC_WIDTH
 	cmp	x0, #ESR_ELx_EC_HVC64
 	ccmp	x0, #ESR_ELx_EC_HVC32, #4, ne
 	b.ne	el1_trap
diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S
index 4ce934fc1f72a..4f57a803d1c8d 100644
--- a/arch/arm64/kvm/hyp/nvhe/host.S
+++ b/arch/arm64/kvm/hyp/nvhe/host.S
@@ -97,7 +97,7 @@ SYM_FUNC_END(__hyp_do_panic)
 .L__vect_start\@:
 	stp	x0, x1, [sp, #-16]!
 	mrs	x0, esr_el2
-	lsr	x0, x0, #ESR_ELx_EC_SHIFT
+	ubfx	x0, x0, #ESR_ELx_EC_SHIFT, #ESR_ELx_EC_WIDTH
 	cmp	x0, #ESR_ELx_EC_HVC64
 	ldp	x0, x1, [sp], #16
 	b.ne	__host_exit
-- 
GitLab


From 9f9d6d391ff5f8a3a4f6a0547fe8ed78dc4d8f15 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 9 Nov 2021 01:30:44 +0000
Subject: [PATCH 1054/4878] KVM: nVMX: Query current VMCS when determining if
 MSR bitmaps are in use

commit 7dfbc624eb5726367900c8d86deff50836240361 upstream.

Check the current VMCS controls to determine if an MSR write will be
intercepted due to MSR bitmaps being disabled.  In the nested VMX case,
KVM will disable MSR bitmaps in vmcs02 if they're disabled in vmcs12 or
if KVM can't map L1's bitmaps for whatever reason.

Note, the bad behavior is relatively benign in the current code base as
KVM sets all bits in vmcs02's MSR bitmap by default, clears bits if and
only if L0 KVM also disables interception of an MSR, and only uses the
buggy helper for MSR_IA32_SPEC_CTRL.  Because KVM explicitly tests WRMSR
before disabling interception of MSR_IA32_SPEC_CTRL, the flawed check
will only result in KVM reading MSR_IA32_SPEC_CTRL from hardware when it
isn't strictly necessary.

Tag the fix for stable in case a future fix wants to use
msr_write_intercepted(), in which case a buggy implementation in older
kernels could prove subtly problematic.

Fixes: d28b387fb74d ("KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211109013047.2041518-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/vmx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 31b4452c931ad..baa4244f3e6a1 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -859,15 +859,15 @@ void update_exception_bitmap(struct kvm_vcpu *vcpu)
 /*
  * Check if MSR is intercepted for currently loaded MSR bitmap.
  */
-static bool msr_write_intercepted(struct kvm_vcpu *vcpu, u32 msr)
+static bool msr_write_intercepted(struct vcpu_vmx *vmx, u32 msr)
 {
 	unsigned long *msr_bitmap;
 	int f = sizeof(unsigned long);
 
-	if (!cpu_has_vmx_msr_bitmap())
+	if (!(exec_controls_get(vmx) & CPU_BASED_USE_MSR_BITMAPS))
 		return true;
 
-	msr_bitmap = to_vmx(vcpu)->loaded_vmcs->msr_bitmap;
+	msr_bitmap = vmx->loaded_vmcs->msr_bitmap;
 
 	if (msr <= 0x1fff) {
 		return !!test_bit(msr, msr_bitmap + 0x800 / f);
@@ -6744,7 +6744,7 @@ reenter_guest:
 	 * If the L02 MSR bitmap does not intercept the MSR, then we need to
 	 * save it.
 	 */
-	if (unlikely(!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL)))
+	if (unlikely(!msr_write_intercepted(vmx, MSR_IA32_SPEC_CTRL)))
 		vmx->spec_ctrl = native_read_msr(MSR_IA32_SPEC_CTRL);
 
 	x86_spec_ctrl_restore_host(vmx->spec_ctrl, 0);
-- 
GitLab


From c3cb7b5c9d140b1a678b74ba8d2544e1eb66e2fc Mon Sep 17 00:00:00 2001
From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Thu, 28 Oct 2021 22:38:25 +0800
Subject: [PATCH 1055/4878] can: j1939: j1939_tp_cmd_recv(): ignore abort
 message in the BAM transport

commit c0f49d98006f2db3333b917caac65bce2af9865c upstream.

This patch prevents BAM transport from being closed by receiving abort
message, as specified in SAE-J1939-82 2015 (A.3.3 Row 4).

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/1635431907-15617-2-git-send-email-zhangchangzhong@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/transport.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index e59fbbffa31ce..fe35fdad35c9b 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -2065,6 +2065,12 @@ static void j1939_tp_cmd_recv(struct j1939_priv *priv, struct sk_buff *skb)
 		break;
 
 	case J1939_ETP_CMD_ABORT: /* && J1939_TP_CMD_ABORT */
+		if (j1939_cb_is_broadcast(skcb)) {
+			netdev_err_once(priv->ndev, "%s: abort to broadcast (%02x), ignoring!\n",
+					__func__, skcb->addr.sa);
+			return;
+		}
+
 		if (j1939_tp_im_transmitter(skcb))
 			j1939_xtp_rx_abort(priv, skb, true);
 
-- 
GitLab


From 875609ad8020a818ec25244fa0915e04e2cf4bf5 Mon Sep 17 00:00:00 2001
From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Thu, 28 Oct 2021 22:38:26 +0800
Subject: [PATCH 1056/4878] can: j1939: j1939_can_recv(): ignore messages with
 invalid source address

commit a79305e156db3d24fcd8eb649cdb3c3b2350e5c2 upstream.

According to SAE-J1939-82 2015 (A.3.6 Row 2), a receiver should never
send TP.CM_CTS to the global address, so we can add a check in
j1939_can_recv() to drop messages with invalid source address.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/1635431907-15617-3-git-send-email-zhangchangzhong@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/can/j1939/main.c b/net/can/j1939/main.c
index 266c189f1e809..ca75d1b8f415c 100644
--- a/net/can/j1939/main.c
+++ b/net/can/j1939/main.c
@@ -75,6 +75,13 @@ static void j1939_can_recv(struct sk_buff *iskb, void *data)
 	skcb->addr.pgn = (cf->can_id >> 8) & J1939_PGN_MAX;
 	/* set default message type */
 	skcb->addr.type = J1939_TP;
+
+	if (!j1939_address_is_valid(skcb->addr.sa)) {
+		netdev_err_once(priv->ndev, "%s: sa is broadcast address, ignoring!\n",
+				__func__);
+		goto done;
+	}
+
 	if (j1939_pgn_is_pdu1(skcb->addr.pgn)) {
 		/* Type 1: with destination address */
 		skcb->addr.da = skcb->addr.pgn;
-- 
GitLab


From 93fccb1f8939ef5328a674a2301286a0d0a77bfa Mon Sep 17 00:00:00 2001
From: Xiaoming Ni <nixiaoming@huawei.com>
Date: Wed, 29 Sep 2021 11:36:45 +0800
Subject: [PATCH 1057/4878] powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids
 node cannot be found

commit 3c2172c1c47b4079c29f0e6637d764a99355ebcd upstream.

When the field described in mpc85xx_smp_guts_ids[] is not configured in
dtb, the mpc85xx_setup_pmc() does not assign a value to the "guts"
variable. As a result, the oops is triggered when
mpc85xx_freeze_time_base() is executed.

Fixes: 56f1ba280719 ("powerpc/mpc85xx: refactor the PM operations")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210929033646.39630-2-nixiaoming@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c b/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c
index 7c0133f558d02..ffa8a7a6a2db7 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c
@@ -94,9 +94,8 @@ int __init mpc85xx_setup_pmc(void)
 			pr_err("Could not map guts node address\n");
 			return -ENOMEM;
 		}
+		qoriq_pm_ops = &mpc85xx_pm_ops;
 	}
 
-	qoriq_pm_ops = &mpc85xx_pm_ops;
-
 	return 0;
 }
-- 
GitLab


From c1e6e42740cb3904d80abd2e0c623c7736ed57d9 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Mon, 8 Nov 2021 10:58:10 -0500
Subject: [PATCH 1058/4878] ring-buffer: Protect ring_buffer_reset() from
 reentrancy

commit 51d157946666382e779f94c39891e8e9a020da78 upstream.

The resetting of the entire ring buffer use to simply go through and reset
each individual CPU buffer that had its own protection and synchronization.
But this was very slow, due to performing a synchronization for each CPU.
The code was reshuffled to do one disabling of all CPU buffers, followed
by a single RCU synchronization, and then the resetting of each of the CPU
buffers. But unfortunately, the mutex that prevented multiple occurrences
of resetting the buffer was not moved to the upper function, and there is
nothing to protect from it.

Take the ring buffer mutex around the global reset.

Cc: stable@vger.kernel.org
Fixes: b23d7a5f4a07a ("ring-buffer: speed up buffer resets by avoiding synchronize_rcu for each CPU")
Reported-by: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/ring_buffer.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 39d4d9b25d1a1..6deac666ba3e4 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -5000,6 +5000,9 @@ void ring_buffer_reset(struct trace_buffer *buffer)
 	struct ring_buffer_per_cpu *cpu_buffer;
 	int cpu;
 
+	/* prevent another thread from changing buffer sizes */
+	mutex_lock(&buffer->mutex);
+
 	for_each_buffer_cpu(buffer, cpu) {
 		cpu_buffer = buffer->buffers[cpu];
 
@@ -5018,6 +5021,8 @@ void ring_buffer_reset(struct trace_buffer *buffer)
 		atomic_dec(&cpu_buffer->record_disabled);
 		atomic_dec(&cpu_buffer->resize_disabled);
 	}
+
+	mutex_unlock(&buffer->mutex);
 }
 EXPORT_SYMBOL_GPL(ring_buffer_reset);
 
-- 
GitLab


From 47462c5e600fbaffd755cd13dedd80d04e41ff83 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Sat, 2 Oct 2021 15:09:00 +0200
Subject: [PATCH 1059/4878] serial: core: Fix initializing and restoring
 termios speed
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 027b57170bf8bb6999a28e4a5f3d78bf1db0f90c upstream.

Since commit edc6afc54968 ("tty: switch to ktermios and new framework")
termios speed is no longer stored only in c_cflag member but also in new
additional c_ispeed and c_ospeed members. If BOTHER flag is set in c_cflag
then termios speed is stored only in these new members.

Therefore to correctly restore termios speed it is required to store also
ispeed and ospeed members, not only cflag member.

In case only cflag member with BOTHER flag is restored then functions
tty_termios_baud_rate() and tty_termios_input_baud_rate() returns baudrate
stored in c_ospeed / c_ispeed member, which is zero as it was not restored
too. If reported baudrate is invalid (e.g. zero) then serial core functions
report fallback baudrate value 9600. So it means that in this case original
baudrate is lost and kernel changes it to value 9600.

Simple reproducer of this issue is to boot kernel with following command
line argument: "console=ttyXXX,86400" (where ttyXXX is the device name).
For speed 86400 there is no Bnnn constant and therefore kernel has to
represent this speed via BOTHER c_cflag. Which means that speed is stored
only in c_ospeed and c_ispeed members, not in c_cflag anymore.

If bootloader correctly configures serial device to speed 86400 then kernel
prints boot log to early console at speed speed 86400 without any issue.
But after kernel starts initializing real console device ttyXXX then speed
is changed to fallback value 9600 because information about speed was lost.

This patch fixes above issue by storing and restoring also ispeed and
ospeed members, which are required for BOTHER flag.

Fixes: edc6afc54968 ("[PATCH] tty: switch to ktermios and new framework")
Cc: stable@vger.kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20211002130900.9518-1-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/serial_core.c | 16 ++++++++++++++--
 include/linux/console.h          |  2 ++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 68a0ff6054761..e6fb5077fe349 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -222,7 +222,11 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state,
 	if (retval == 0) {
 		if (uart_console(uport) && uport->cons->cflag) {
 			tty->termios.c_cflag = uport->cons->cflag;
+			tty->termios.c_ispeed = uport->cons->ispeed;
+			tty->termios.c_ospeed = uport->cons->ospeed;
 			uport->cons->cflag = 0;
+			uport->cons->ispeed = 0;
+			uport->cons->ospeed = 0;
 		}
 		/*
 		 * Initialise the hardware port settings.
@@ -290,8 +294,11 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state)
 		/*
 		 * Turn off DTR and RTS early.
 		 */
-		if (uport && uart_console(uport) && tty)
+		if (uport && uart_console(uport) && tty) {
 			uport->cons->cflag = tty->termios.c_cflag;
+			uport->cons->ispeed = tty->termios.c_ispeed;
+			uport->cons->ospeed = tty->termios.c_ospeed;
+		}
 
 		if (!tty || C_HUPCL(tty))
 			uart_port_dtr_rts(uport, 0);
@@ -2123,8 +2130,11 @@ uart_set_options(struct uart_port *port, struct console *co,
 	 * Allow the setting of the UART parameters with a NULL console
 	 * too:
 	 */
-	if (co)
+	if (co) {
 		co->cflag = termios.c_cflag;
+		co->ispeed = termios.c_ispeed;
+		co->ospeed = termios.c_ospeed;
+	}
 
 	return 0;
 }
@@ -2258,6 +2268,8 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *uport)
 		 */
 		memset(&termios, 0, sizeof(struct ktermios));
 		termios.c_cflag = uport->cons->cflag;
+		termios.c_ispeed = uport->cons->ispeed;
+		termios.c_ospeed = uport->cons->ospeed;
 
 		/*
 		 * If that's unset, use the tty termios setting.
diff --git a/include/linux/console.h b/include/linux/console.h
index 4b1e26c4cb428..bc2a749e6f0d4 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -150,6 +150,8 @@ struct console {
 	short	flags;
 	short	index;
 	int	cflag;
+	uint	ispeed;
+	uint	ospeed;
 	void	*data;
 	struct	 console *next;
 };
-- 
GitLab


From cd0b29a89bc29b9b3728185382ea14ee6225af3f Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 29 Oct 2021 13:30:51 +0200
Subject: [PATCH 1060/4878] ifb: fix building without CONFIG_NET_CLS_ACT

commit 7444d706be31753f65052c7f6325fc8470cc1789 upstream.

The driver no longer depends on this option, but it fails to
build if it's disabled because the skb->tc_skip_classify is
hidden behind an #ifdef:

drivers/net/ifb.c:81:8: error: no member named 'tc_skip_classify' in 'struct sk_buff'
                skb->tc_skip_classify = 1;

Use the same #ifdef around the assignment.

Fixes: 046178e726c2 ("ifb: Depend on netfilter alternatively to tc")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ifb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index 7fe306e76281d..db3a9b93d4db7 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -76,7 +76,9 @@ static void ifb_ri_tasklet(unsigned long _txp)
 
 	while ((skb = __skb_dequeue(&txp->tq)) != NULL) {
 		skb->redirected = 0;
+#ifdef CONFIG_NET_CLS_ACT
 		skb->tc_skip_classify = 1;
+#endif
 
 		u64_stats_update_begin(&txp->tsync);
 		txp->tx_packets++;
-- 
GitLab


From 694c0c84a6ec3cdb143c2fcf037b880b07c2f798 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 20 Oct 2021 18:48:46 +0200
Subject: [PATCH 1061/4878] ALSA: mixer: oss: Fix racy access to slots

commit 411cef6adfb38a5bb6bd9af3941b28198e7fb680 upstream.

The OSS mixer can reassign the mapping slots dynamically via proc
file.  Although the addition and deletion of those slots are protected
by mixer->reg_mutex, the access to slots aren't, hence this may cause
UAF when the slots in use are deleted concurrently.

This patch applies the mixer->reg_mutex in all appropriate code paths
(i.e. the ioctl functions) that may access slots.

Reported-by: syzbot+9988f17cf72a1045a189@syzkaller.appspotmail.com
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/00000000000036adc005ceca9175@google.com
Link: https://lore.kernel.org/r/20211020164846.922-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/oss/mixer_oss.c | 43 +++++++++++++++++++++++++++++---------
 1 file changed, 33 insertions(+), 10 deletions(-)

diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
index f702c96a7478f..c113768484bec 100644
--- a/sound/core/oss/mixer_oss.c
+++ b/sound/core/oss/mixer_oss.c
@@ -130,11 +130,13 @@ static int snd_mixer_oss_devmask(struct snd_mixer_oss_file *fmixer)
 
 	if (mixer == NULL)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	for (chn = 0; chn < 31; chn++) {
 		pslot = &mixer->slots[chn];
 		if (pslot->put_volume || pslot->put_recsrc)
 			result |= 1 << chn;
 	}
+	mutex_unlock(&mixer->reg_mutex);
 	return result;
 }
 
@@ -146,11 +148,13 @@ static int snd_mixer_oss_stereodevs(struct snd_mixer_oss_file *fmixer)
 
 	if (mixer == NULL)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	for (chn = 0; chn < 31; chn++) {
 		pslot = &mixer->slots[chn];
 		if (pslot->put_volume && pslot->stereo)
 			result |= 1 << chn;
 	}
+	mutex_unlock(&mixer->reg_mutex);
 	return result;
 }
 
@@ -161,6 +165,7 @@ static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
 
 	if (mixer == NULL)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	if (mixer->put_recsrc && mixer->get_recsrc) {	/* exclusive */
 		result = mixer->mask_recsrc;
 	} else {
@@ -172,6 +177,7 @@ static int snd_mixer_oss_recmask(struct snd_mixer_oss_file *fmixer)
 				result |= 1 << chn;
 		}
 	}
+	mutex_unlock(&mixer->reg_mutex);
 	return result;
 }
 
@@ -182,11 +188,12 @@ static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
 
 	if (mixer == NULL)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	if (mixer->put_recsrc && mixer->get_recsrc) {	/* exclusive */
-		int err;
 		unsigned int index;
-		if ((err = mixer->get_recsrc(fmixer, &index)) < 0)
-			return err;
+		result = mixer->get_recsrc(fmixer, &index);
+		if (result < 0)
+			goto unlock;
 		result = 1 << index;
 	} else {
 		struct snd_mixer_oss_slot *pslot;
@@ -201,7 +208,10 @@ static int snd_mixer_oss_get_recsrc(struct snd_mixer_oss_file *fmixer)
 			}
 		}
 	}
-	return mixer->oss_recsrc = result;
+	mixer->oss_recsrc = result;
+ unlock:
+	mutex_unlock(&mixer->reg_mutex);
+	return result;
 }
 
 static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsrc)
@@ -214,6 +224,7 @@ static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsr
 
 	if (mixer == NULL)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	if (mixer->get_recsrc && mixer->put_recsrc) {	/* exclusive input */
 		if (recsrc & ~mixer->oss_recsrc)
 			recsrc &= ~mixer->oss_recsrc;
@@ -239,6 +250,7 @@ static int snd_mixer_oss_set_recsrc(struct snd_mixer_oss_file *fmixer, int recsr
 			}
 		}
 	}
+	mutex_unlock(&mixer->reg_mutex);
 	return result;
 }
 
@@ -250,6 +262,7 @@ static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
 
 	if (mixer == NULL || slot > 30)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	pslot = &mixer->slots[slot];
 	left = pslot->volume[0];
 	right = pslot->volume[1];
@@ -257,15 +270,21 @@ static int snd_mixer_oss_get_volume(struct snd_mixer_oss_file *fmixer, int slot)
 		result = pslot->get_volume(fmixer, pslot, &left, &right);
 	if (!pslot->stereo)
 		right = left;
-	if (snd_BUG_ON(left < 0 || left > 100))
-		return -EIO;
-	if (snd_BUG_ON(right < 0 || right > 100))
-		return -EIO;
+	if (snd_BUG_ON(left < 0 || left > 100)) {
+		result = -EIO;
+		goto unlock;
+	}
+	if (snd_BUG_ON(right < 0 || right > 100)) {
+		result = -EIO;
+		goto unlock;
+	}
 	if (result >= 0) {
 		pslot->volume[0] = left;
 		pslot->volume[1] = right;
 	 	result = (left & 0xff) | ((right & 0xff) << 8);
 	}
+ unlock:
+	mutex_unlock(&mixer->reg_mutex);
 	return result;
 }
 
@@ -278,6 +297,7 @@ static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
 
 	if (mixer == NULL || slot > 30)
 		return -EIO;
+	mutex_lock(&mixer->reg_mutex);
 	pslot = &mixer->slots[slot];
 	if (left > 100)
 		left = 100;
@@ -288,10 +308,13 @@ static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
 	if (pslot->put_volume)
 		result = pslot->put_volume(fmixer, pslot, left, right);
 	if (result < 0)
-		return result;
+		goto unlock;
 	pslot->volume[0] = left;
 	pslot->volume[1] = right;
- 	return (left & 0xff) | ((right & 0xff) << 8);
+	result = (left & 0xff) | ((right & 0xff) << 8);
+ unlock:
+	mutex_lock(&mixer->reg_mutex);
+	return result;
 }
 
 static int snd_mixer_oss_ioctl1(struct snd_mixer_oss_file *fmixer, unsigned int cmd, unsigned long arg)
-- 
GitLab


From 96e7880a432a429994f3389ecf90587a4a130a13 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Sun, 24 Oct 2021 17:03:15 +0300
Subject: [PATCH 1062/4878] ALSA: mixer: fix deadlock in
 snd_mixer_oss_set_volume

commit 3ab7992018455ac63c33e9b3eaa7264e293e40f4 upstream.

In commit 411cef6adfb3 ("ALSA: mixer: oss: Fix racy access to slots")
added mutex protection in snd_mixer_oss_set_volume(). Second
mutex_lock() in same function looks like typo, fix it.

Reported-by: syzbot+ace149a75a9a0a399ac7@syzkaller.appspotmail.com
Fixes: 411cef6adfb3 ("ALSA: mixer: oss: Fix racy access to slots")
Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211024140315.16704-1-paskripkin@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/oss/mixer_oss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
index c113768484bec..bfed82a3a1881 100644
--- a/sound/core/oss/mixer_oss.c
+++ b/sound/core/oss/mixer_oss.c
@@ -313,7 +313,7 @@ static int snd_mixer_oss_set_volume(struct snd_mixer_oss_file *fmixer,
 	pslot->volume[1] = right;
 	result = (left & 0xff) | ((right & 0xff) << 8);
  unlock:
-	mutex_lock(&mixer->reg_mutex);
+	mutex_unlock(&mixer->reg_mutex);
 	return result;
 }
 
-- 
GitLab


From af7d25d7853c286126e660e59cfa52c026334881 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 2 Nov 2021 10:19:44 +0100
Subject: [PATCH 1063/4878] xen/balloon: add late_initcall_sync() for initial
 ballooning done
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 40fdea0284bb20814399da0484a658a96c735d90 upstream.

When running as PVH or HVM guest with actual memory < max memory the
hypervisor is using "populate on demand" in order to allow the guest
to balloon down from its maximum memory size. For this to work
correctly the guest must not touch more memory pages than its target
memory size as otherwise the PoD cache will be exhausted and the guest
is crashed as a result of that.

In extreme cases ballooning down might not be finished today before
the init process is started, which can consume lots of memory.

In order to avoid random boot crashes in such cases, add a late init
call to wait for ballooning down having finished for PVH/HVM guests.

Warn on console if initial ballooning fails, panic() after stalling
for more than 3 minutes per default. Add a module parameter for
changing this timeout.

[boris: replaced pr_info() with pr_notice()]

Cc: <stable@vger.kernel.org>
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211102091944.17487-1-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../admin-guide/kernel-parameters.txt         |  7 ++
 drivers/xen/balloon.c                         | 86 ++++++++++++++-----
 2 files changed, 70 insertions(+), 23 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f103667d3727f..516499f9ccae4 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5988,6 +5988,13 @@
 			improve timer resolution at the expense of processing
 			more timer interrupts.
 
+	xen.balloon_boot_timeout= [XEN]
+			The time (in seconds) to wait before giving up to boot
+			in case initial ballooning fails to free enough memory.
+			Applies only when running as HVM or PVH guest and
+			started with less memory configured than allowed at
+			max. Default is 180.
+
 	xen.event_eoi_delay=	[XEN]
 			How long to delay EOI handling in case of event
 			storms (jiffies). Default is 10.
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 1911a62a6d9c1..c5b02365a5fe7 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -58,6 +58,7 @@
 #include <linux/percpu-defs.h>
 #include <linux/slab.h>
 #include <linux/sysctl.h>
+#include <linux/moduleparam.h>
 
 #include <asm/page.h>
 #include <asm/tlb.h>
@@ -73,6 +74,12 @@
 #include <xen/page.h>
 #include <xen/mem-reservation.h>
 
+#undef MODULE_PARAM_PREFIX
+#define MODULE_PARAM_PREFIX "xen."
+
+static uint __read_mostly balloon_boot_timeout = 180;
+module_param(balloon_boot_timeout, uint, 0444);
+
 static int xen_hotplug_unpopulated;
 
 #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
@@ -125,12 +132,12 @@ static struct ctl_table xen_root[] = {
  * BP_ECANCELED: error, balloon operation canceled.
  */
 
-enum bp_state {
+static enum bp_state {
 	BP_DONE,
 	BP_WAIT,
 	BP_EAGAIN,
 	BP_ECANCELED
-};
+} balloon_state = BP_DONE;
 
 /* Main waiting point for xen-balloon thread. */
 static DECLARE_WAIT_QUEUE_HEAD(balloon_thread_wq);
@@ -199,18 +206,15 @@ static struct page *balloon_next_page(struct page *page)
 	return list_entry(next, struct page, lru);
 }
 
-static enum bp_state update_schedule(enum bp_state state)
+static void update_schedule(void)
 {
-	if (state == BP_WAIT)
-		return BP_WAIT;
-
-	if (state == BP_ECANCELED)
-		return BP_ECANCELED;
+	if (balloon_state == BP_WAIT || balloon_state == BP_ECANCELED)
+		return;
 
-	if (state == BP_DONE) {
+	if (balloon_state == BP_DONE) {
 		balloon_stats.schedule_delay = 1;
 		balloon_stats.retry_count = 1;
-		return BP_DONE;
+		return;
 	}
 
 	++balloon_stats.retry_count;
@@ -219,7 +223,8 @@ static enum bp_state update_schedule(enum bp_state state)
 			balloon_stats.retry_count > balloon_stats.max_retry_count) {
 		balloon_stats.schedule_delay = 1;
 		balloon_stats.retry_count = 1;
-		return BP_ECANCELED;
+		balloon_state = BP_ECANCELED;
+		return;
 	}
 
 	balloon_stats.schedule_delay <<= 1;
@@ -227,7 +232,7 @@ static enum bp_state update_schedule(enum bp_state state)
 	if (balloon_stats.schedule_delay > balloon_stats.max_schedule_delay)
 		balloon_stats.schedule_delay = balloon_stats.max_schedule_delay;
 
-	return BP_EAGAIN;
+	balloon_state = BP_EAGAIN;
 }
 
 #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
@@ -494,9 +499,9 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
  * Stop waiting if either state is BP_DONE and ballooning action is
  * needed, or if the credit has changed while state is not BP_DONE.
  */
-static bool balloon_thread_cond(enum bp_state state, long credit)
+static bool balloon_thread_cond(long credit)
 {
-	if (state == BP_DONE)
+	if (balloon_state == BP_DONE)
 		credit = 0;
 
 	return current_credit() != credit || kthread_should_stop();
@@ -510,13 +515,12 @@ static bool balloon_thread_cond(enum bp_state state, long credit)
  */
 static int balloon_thread(void *unused)
 {
-	enum bp_state state = BP_DONE;
 	long credit;
 	unsigned long timeout;
 
 	set_freezable();
 	for (;;) {
-		switch (state) {
+		switch (balloon_state) {
 		case BP_DONE:
 		case BP_ECANCELED:
 			timeout = 3600 * HZ;
@@ -532,7 +536,7 @@ static int balloon_thread(void *unused)
 		credit = current_credit();
 
 		wait_event_freezable_timeout(balloon_thread_wq,
-			balloon_thread_cond(state, credit), timeout);
+			balloon_thread_cond(credit), timeout);
 
 		if (kthread_should_stop())
 			return 0;
@@ -543,22 +547,23 @@ static int balloon_thread(void *unused)
 
 		if (credit > 0) {
 			if (balloon_is_inflated())
-				state = increase_reservation(credit);
+				balloon_state = increase_reservation(credit);
 			else
-				state = reserve_additional_memory();
+				balloon_state = reserve_additional_memory();
 		}
 
 		if (credit < 0) {
 			long n_pages;
 
 			n_pages = min(-credit, si_mem_available());
-			state = decrease_reservation(n_pages, GFP_BALLOON);
-			if (state == BP_DONE && n_pages != -credit &&
+			balloon_state = decrease_reservation(n_pages,
+							     GFP_BALLOON);
+			if (balloon_state == BP_DONE && n_pages != -credit &&
 			    n_pages < totalreserve_pages)
-				state = BP_EAGAIN;
+				balloon_state = BP_EAGAIN;
 		}
 
-		state = update_schedule(state);
+		update_schedule();
 
 		mutex_unlock(&balloon_mutex);
 
@@ -765,3 +770,38 @@ static int __init balloon_init(void)
 	return 0;
 }
 subsys_initcall(balloon_init);
+
+static int __init balloon_wait_finish(void)
+{
+	long credit, last_credit = 0;
+	unsigned long last_changed = 0;
+
+	if (!xen_domain())
+		return -ENODEV;
+
+	/* PV guests don't need to wait. */
+	if (xen_pv_domain() || !current_credit())
+		return 0;
+
+	pr_notice("Waiting for initial ballooning down having finished.\n");
+
+	while ((credit = current_credit()) < 0) {
+		if (credit != last_credit) {
+			last_changed = jiffies;
+			last_credit = credit;
+		}
+		if (balloon_state == BP_ECANCELED) {
+			pr_warn_once("Initial ballooning failed, %ld pages need to be freed.\n",
+				     -credit);
+			if (jiffies - last_changed >= HZ * balloon_boot_timeout)
+				panic("Initial ballooning failed!\n");
+		}
+
+		schedule_timeout_interruptible(HZ / 10);
+	}
+
+	pr_notice("Initial ballooning down finished.\n");
+
+	return 0;
+}
+late_initcall_sync(balloon_wait_finish);
-- 
GitLab


From 4fd9f0509a1452b45e89c668e2bab854cb05cd25 Mon Sep 17 00:00:00 2001
From: yangerkun <yangerkun@huawei.com>
Date: Thu, 30 Sep 2021 11:22:28 +0800
Subject: [PATCH 1064/4878] ovl: fix use after free in struct ovl_aio_req

commit 9a254403760041528bc8f69fe2f5e1ef86950991 upstream.

Example for triggering use after free in a overlay on ext4 setup:

aio_read
  ovl_read_iter
    vfs_iter_read
      ext4_file_read_iter
        ext4_dio_read_iter
          iomap_dio_rw -> -EIOCBQUEUED
          /*
	   * Here IO is completed in a separate thread,
	   * ovl_aio_cleanup_handler() frees aio_req which has iocb embedded
	   */
          file_accessed(iocb->ki_filp); /**BOOM**/

Fix by introducing a refcount in ovl_aio_req similarly to aio_kiocb.  This
guarantees that iocb is only freed after vfs_read/write_iter() returns on
underlying fs.

Fixes: 2406a307ac7d ("ovl: implement async IO routines")
Signed-off-by: yangerkun <yangerkun@huawei.com>
Link: https://lore.kernel.org/r/20210930032228.3199690-3-yangerkun@huawei.com/
Cc: <stable@vger.kernel.org> # v5.6
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/file.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index f7135777cb4eb..d1ae643a999a5 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -17,6 +17,7 @@
 
 struct ovl_aio_req {
 	struct kiocb iocb;
+	refcount_t ref;
 	struct kiocb *orig_iocb;
 	struct fd fd;
 };
@@ -257,6 +258,14 @@ static rwf_t ovl_iocb_to_rwf(int ifl)
 	return flags;
 }
 
+static inline void ovl_aio_put(struct ovl_aio_req *aio_req)
+{
+	if (refcount_dec_and_test(&aio_req->ref)) {
+		fdput(aio_req->fd);
+		kmem_cache_free(ovl_aio_request_cachep, aio_req);
+	}
+}
+
 static void ovl_aio_cleanup_handler(struct ovl_aio_req *aio_req)
 {
 	struct kiocb *iocb = &aio_req->iocb;
@@ -273,8 +282,7 @@ static void ovl_aio_cleanup_handler(struct ovl_aio_req *aio_req)
 	}
 
 	orig_iocb->ki_pos = iocb->ki_pos;
-	fdput(aio_req->fd);
-	kmem_cache_free(ovl_aio_request_cachep, aio_req);
+	ovl_aio_put(aio_req);
 }
 
 static void ovl_aio_rw_complete(struct kiocb *iocb, long res, long res2)
@@ -324,7 +332,9 @@ static ssize_t ovl_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 		aio_req->orig_iocb = iocb;
 		kiocb_clone(&aio_req->iocb, iocb, real.file);
 		aio_req->iocb.ki_complete = ovl_aio_rw_complete;
+		refcount_set(&aio_req->ref, 2);
 		ret = vfs_iocb_iter_read(real.file, &aio_req->iocb, iter);
+		ovl_aio_put(aio_req);
 		if (ret != -EIOCBQUEUED)
 			ovl_aio_cleanup_handler(aio_req);
 	}
@@ -395,7 +405,9 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
 		kiocb_clone(&aio_req->iocb, iocb, real.file);
 		aio_req->iocb.ki_flags = ifl;
 		aio_req->iocb.ki_complete = ovl_aio_rw_complete;
+		refcount_set(&aio_req->ref, 2);
 		ret = vfs_iocb_iter_write(real.file, &aio_req->iocb, iter);
+		ovl_aio_put(aio_req);
 		if (ret != -EIOCBQUEUED)
 			ovl_aio_cleanup_handler(aio_req);
 	}
-- 
GitLab


From adcfc317d3f5d14d02881211f409c32f6f845fd2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Thu, 28 Oct 2021 20:56:53 +0200
Subject: [PATCH 1065/4878] PCI: pci-bridge-emul: Fix emulation of W1C bits
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 7a41ae80bdcb17e14dd7d83239b8a0cf368f18be upstream.

The pci_bridge_emul_conf_write() function correctly clears W1C bits in
cfgspace cache, but it does not inform the underlying implementation
about the clear request: the .write_op() method is given the value with
these bits cleared.

This is wrong if the .write_op() needs to know which bits were requested
to be cleared.

Fix the value to be passed into the .write_op() method to have requested
W1C bits set, so that it can clear them.

Both pci-bridge-emul users (mvebu and aardvark) are compatible with this
change.

Link: https://lore.kernel.org/r/20211028185659.20329-2-kabel@kernel.org
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-bridge-emul.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index fdaf86a888b73..db97cddfc85e1 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -431,8 +431,21 @@ int pci_bridge_emul_conf_write(struct pci_bridge_emul *bridge, int where,
 	/* Clear the W1C bits */
 	new &= ~((value << shift) & (behavior[reg / 4].w1c & mask));
 
+	/* Save the new value with the cleared W1C bits into the cfgspace */
 	cfgspace[reg / 4] = cpu_to_le32(new);
 
+	/*
+	 * Clear the W1C bits not specified by the write mask, so that the
+	 * write_op() does not clear them.
+	 */
+	new &= ~(behavior[reg / 4].w1c & ~mask);
+
+	/*
+	 * Set the W1C bits specified by the write mask, so that write_op()
+	 * knows about that they are to be cleared.
+	 */
+	new |= (value << shift) & (behavior[reg / 4].w1c & mask);
+
 	if (write_op)
 		write_op(bridge, reg, old, new, mask);
 
-- 
GitLab


From c1a8fb237470f1579fe4504389f4b3cf2e4015e8 Mon Sep 17 00:00:00 2001
From: Li Chen <lchen@ambarella.com>
Date: Thu, 21 Oct 2021 02:50:19 +0000
Subject: [PATCH 1066/4878] PCI: cadence: Add cdns_plat_pcie_probe() missing
 return

commit 27cd7e3c9bb1ae13bc16f08138edd6e4df3cd211 upstream.

When cdns_plat_pcie_probe() succeeds, return success instead of falling
into the error handling code.

Fixes: bd22885aa188 ("PCI: cadence: Refactor driver to use as a core library")
Link: https://lore.kernel.org/r/DM6PR19MB40271B93057D949310F0B0EDA0BF9@DM6PR19MB4027.namprd19.prod.outlook.com
Signed-off-by: Xuliang Zhang <xlzhanga@ambarella.com>
Signed-off-by: Li Chen <lchen@ambarella.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/cadence/pcie-cadence-plat.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/controller/cadence/pcie-cadence-plat.c b/drivers/pci/controller/cadence/pcie-cadence-plat.c
index 5fee0f89ab594..a224afadbcc00 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-plat.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-plat.c
@@ -127,6 +127,8 @@ static int cdns_plat_pcie_probe(struct platform_device *pdev)
 			goto err_init;
 	}
 
+	return 0;
+
  err_init:
  err_get_sync:
 	pm_runtime_put_sync(dev);
-- 
GitLab


From 3bcbace714bb82721a38955b358afd476c800c3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:45 +0200
Subject: [PATCH 1067/4878] PCI: aardvark: Do not clear status bits of masked
 interrupts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit a7ca6d7fa3c02c032db5440ff392d96c04684c21 upstream.

The PCIE_ISR1_REG says which interrupts are currently set / active,
including those which are masked.

The driver currently reads this register and looks if some unmasked
interrupts are active, and if not, it clears status bits of _all_
interrupts, including the masked ones.

This is incorrect, since, for example, some drivers may poll these bits.

Remove this clearing, and also remove this early return statement
completely, since it does not change functionality in any way.

Link: https://lore.kernel.org/r/20211005180952.6812-7-kabel@kernel.org
Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 4f1a29ede576a..5f5ba6143f83e 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1286,12 +1286,6 @@ static void advk_pcie_handle_int(struct advk_pcie *pcie)
 	isr1_mask = advk_readl(pcie, PCIE_ISR1_MASK_REG);
 	isr1_status = isr1_val & ((~isr1_mask) & PCIE_ISR1_ALL_MASK);
 
-	if (!isr0_status && !isr1_status) {
-		advk_writel(pcie, isr0_val, PCIE_ISR0_REG);
-		advk_writel(pcie, isr1_val, PCIE_ISR1_REG);
-		return;
-	}
-
 	/* Process MSI interrupts */
 	if (isr0_status & PCIE_ISR0_MSI_INT_PENDING)
 		advk_pcie_handle_msi(pcie);
-- 
GitLab


From 1085ee5236ef46836690a29a6e6749e61f904105 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:51 +0200
Subject: [PATCH 1068/4878] PCI: aardvark: Fix checking for link up via LTSSM
 state
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 661c399a651c11aaf83c45cbfe0b4a1fb7bc3179 upstream.

Current implementation of advk_pcie_link_up() is wrong as it marks also
link disabled or hot reset states as link up.

Fix it by marking link up only to those states which are defined in PCIe
Base specification 3.0, Table 4-14: Link Status Mapped to the LTSSM.

To simplify implementation, Define macros for every LTSSM state which
aardvark hardware can return in CFG_REG register.

Fix also checking for link training according to the same Table 4-14.
Define a new function advk_pcie_link_training() for this purpose.

Link: https://lore.kernel.org/r/20211005180952.6812-13-kabel@kernel.org
Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
Cc: Remi Pommarel <repk@triplefau.lt>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 76 ++++++++++++++++++++++++---
 1 file changed, 70 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 5f5ba6143f83e..0107fd456605a 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -163,8 +163,50 @@
 #define CFG_REG					(LMI_BASE_ADDR + 0x0)
 #define     LTSSM_SHIFT				24
 #define     LTSSM_MASK				0x3f
-#define     LTSSM_L0				0x10
 #define     RC_BAR_CONFIG			0x300
+
+/* LTSSM values in CFG_REG */
+enum {
+	LTSSM_DETECT_QUIET			= 0x0,
+	LTSSM_DETECT_ACTIVE			= 0x1,
+	LTSSM_POLLING_ACTIVE			= 0x2,
+	LTSSM_POLLING_COMPLIANCE		= 0x3,
+	LTSSM_POLLING_CONFIGURATION		= 0x4,
+	LTSSM_CONFIG_LINKWIDTH_START		= 0x5,
+	LTSSM_CONFIG_LINKWIDTH_ACCEPT		= 0x6,
+	LTSSM_CONFIG_LANENUM_ACCEPT		= 0x7,
+	LTSSM_CONFIG_LANENUM_WAIT		= 0x8,
+	LTSSM_CONFIG_COMPLETE			= 0x9,
+	LTSSM_CONFIG_IDLE			= 0xa,
+	LTSSM_RECOVERY_RCVR_LOCK		= 0xb,
+	LTSSM_RECOVERY_SPEED			= 0xc,
+	LTSSM_RECOVERY_RCVR_CFG			= 0xd,
+	LTSSM_RECOVERY_IDLE			= 0xe,
+	LTSSM_L0				= 0x10,
+	LTSSM_RX_L0S_ENTRY			= 0x11,
+	LTSSM_RX_L0S_IDLE			= 0x12,
+	LTSSM_RX_L0S_FTS			= 0x13,
+	LTSSM_TX_L0S_ENTRY			= 0x14,
+	LTSSM_TX_L0S_IDLE			= 0x15,
+	LTSSM_TX_L0S_FTS			= 0x16,
+	LTSSM_L1_ENTRY				= 0x17,
+	LTSSM_L1_IDLE				= 0x18,
+	LTSSM_L2_IDLE				= 0x19,
+	LTSSM_L2_TRANSMIT_WAKE			= 0x1a,
+	LTSSM_DISABLED				= 0x20,
+	LTSSM_LOOPBACK_ENTRY_MASTER		= 0x21,
+	LTSSM_LOOPBACK_ACTIVE_MASTER		= 0x22,
+	LTSSM_LOOPBACK_EXIT_MASTER		= 0x23,
+	LTSSM_LOOPBACK_ENTRY_SLAVE		= 0x24,
+	LTSSM_LOOPBACK_ACTIVE_SLAVE		= 0x25,
+	LTSSM_LOOPBACK_EXIT_SLAVE		= 0x26,
+	LTSSM_HOT_RESET				= 0x27,
+	LTSSM_RECOVERY_EQUALIZATION_PHASE0	= 0x28,
+	LTSSM_RECOVERY_EQUALIZATION_PHASE1	= 0x29,
+	LTSSM_RECOVERY_EQUALIZATION_PHASE2	= 0x2a,
+	LTSSM_RECOVERY_EQUALIZATION_PHASE3	= 0x2b,
+};
+
 #define VENDOR_ID_REG				(LMI_BASE_ADDR + 0x44)
 
 /* PCIe core controller registers */
@@ -269,13 +311,35 @@ static inline u16 advk_read16(struct advk_pcie *pcie, u64 reg)
 	return advk_readl(pcie, (reg & ~0x3)) >> ((reg & 0x3) * 8);
 }
 
-static int advk_pcie_link_up(struct advk_pcie *pcie)
+static u8 advk_pcie_ltssm_state(struct advk_pcie *pcie)
 {
-	u32 val, ltssm_state;
+	u32 val;
+	u8 ltssm_state;
 
 	val = advk_readl(pcie, CFG_REG);
 	ltssm_state = (val >> LTSSM_SHIFT) & LTSSM_MASK;
-	return ltssm_state >= LTSSM_L0;
+	return ltssm_state;
+}
+
+static inline bool advk_pcie_link_up(struct advk_pcie *pcie)
+{
+	/* check if LTSSM is in normal operation - some L* state */
+	u8 ltssm_state = advk_pcie_ltssm_state(pcie);
+	return ltssm_state >= LTSSM_L0 && ltssm_state < LTSSM_DISABLED;
+}
+
+static inline bool advk_pcie_link_training(struct advk_pcie *pcie)
+{
+	/*
+	 * According to PCIe Base specification 3.0, Table 4-14: Link
+	 * Status Mapped to the LTSSM is Link Training mapped to LTSSM
+	 * Configuration and Recovery states.
+	 */
+	u8 ltssm_state = advk_pcie_ltssm_state(pcie);
+	return ((ltssm_state >= LTSSM_CONFIG_LINKWIDTH_START &&
+		 ltssm_state < LTSSM_L0) ||
+		(ltssm_state >= LTSSM_RECOVERY_EQUALIZATION_PHASE0 &&
+		 ltssm_state <= LTSSM_RECOVERY_EQUALIZATION_PHASE3));
 }
 
 static int advk_pcie_wait_for_link(struct advk_pcie *pcie)
@@ -298,7 +362,7 @@ static void advk_pcie_wait_for_retrain(struct advk_pcie *pcie)
 	size_t retries;
 
 	for (retries = 0; retries < RETRAIN_WAIT_MAX_RETRIES; ++retries) {
-		if (!advk_pcie_link_up(pcie))
+		if (advk_pcie_link_training(pcie))
 			break;
 		udelay(RETRAIN_WAIT_USLEEP_US);
 	}
@@ -738,7 +802,7 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 		/* u32 contains both PCI_EXP_LNKCTL and PCI_EXP_LNKSTA */
 		u32 val = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg) &
 			~(PCI_EXP_LNKSTA_LT << 16);
-		if (!advk_pcie_link_up(pcie))
+		if (advk_pcie_link_training(pcie))
 			val |= (PCI_EXP_LNKSTA_LT << 16);
 		*value = val;
 		return PCI_BRIDGE_EMUL_HANDLED;
-- 
GitLab


From 2b861523d7ceb88bf1ee36a0ab523f3d7ca03ca7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:46 +0200
Subject: [PATCH 1069/4878] PCI: aardvark: Do not unmask unused interrupts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 1fb95d7d3c7a926b002fe8a6bd27a1cb428b46dc upstream.

There are lot of undocumented interrupt bits. To prevent unwanted
spurious interrupts, fix all *_ALL_MASK macros to define all interrupt
bits, so that driver can properly mask all interrupts, including those
which are undocumented.

Link: https://lore.kernel.org/r/20211005180952.6812-8-kabel@kernel.org
Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 0107fd456605a..1ff6f0d687733 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -105,13 +105,13 @@
 #define     PCIE_ISR0_MSI_INT_PENDING		BIT(24)
 #define     PCIE_ISR0_INTX_ASSERT(val)		BIT(16 + (val))
 #define     PCIE_ISR0_INTX_DEASSERT(val)	BIT(20 + (val))
-#define	    PCIE_ISR0_ALL_MASK			GENMASK(26, 0)
+#define     PCIE_ISR0_ALL_MASK			GENMASK(31, 0)
 #define PCIE_ISR1_REG				(CONTROL_BASE_ADDR + 0x48)
 #define PCIE_ISR1_MASK_REG			(CONTROL_BASE_ADDR + 0x4C)
 #define     PCIE_ISR1_POWER_STATE_CHANGE	BIT(4)
 #define     PCIE_ISR1_FLUSH			BIT(5)
 #define     PCIE_ISR1_INTX_ASSERT(val)		BIT(8 + (val))
-#define     PCIE_ISR1_ALL_MASK			GENMASK(11, 4)
+#define     PCIE_ISR1_ALL_MASK			GENMASK(31, 0)
 #define PCIE_MSI_ADDR_LOW_REG			(CONTROL_BASE_ADDR + 0x50)
 #define PCIE_MSI_ADDR_HIGH_REG			(CONTROL_BASE_ADDR + 0x54)
 #define PCIE_MSI_STATUS_REG			(CONTROL_BASE_ADDR + 0x58)
@@ -239,7 +239,7 @@ enum {
 #define     PCIE_IRQ_MSI_INT2_DET		BIT(21)
 #define     PCIE_IRQ_RC_DBELL_DET		BIT(22)
 #define     PCIE_IRQ_EP_STATUS			BIT(23)
-#define     PCIE_IRQ_ALL_MASK			0xfff0fb
+#define     PCIE_IRQ_ALL_MASK			GENMASK(31, 0)
 #define     PCIE_IRQ_ENABLE_INTS_MASK		PCIE_IRQ_CORE_INT
 
 /* Transaction types */
-- 
GitLab


From 5fb031fcd423bde73dccd3d752ca1f76fb23b503 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:52 +0200
Subject: [PATCH 1070/4878] PCI: aardvark: Fix reporting Data Link Layer Link
 Active
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 2b650b7ff20eb7ea8ef9031d20fb657286ab90cc upstream.

Add support for reporting PCI_EXP_LNKSTA_DLLLA bit in Link Control register
on emulated bridge via current LTSSM state. Also correctly indicate DLLLA
capability via PCI_EXP_LNKCAP_DLLLARC bit in Link Control Capability
register.

Link: https://lore.kernel.org/r/20211005180952.6812-14-kabel@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 29 ++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 1ff6f0d687733..3225e288639f2 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -328,6 +328,20 @@ static inline bool advk_pcie_link_up(struct advk_pcie *pcie)
 	return ltssm_state >= LTSSM_L0 && ltssm_state < LTSSM_DISABLED;
 }
 
+static inline bool advk_pcie_link_active(struct advk_pcie *pcie)
+{
+	/*
+	 * According to PCIe Base specification 3.0, Table 4-14: Link
+	 * Status Mapped to the LTSSM, and 4.2.6.3.6 Configuration.Idle
+	 * is Link Up mapped to LTSSM Configuration.Idle, Recovery, L0,
+	 * L0s, L1 and L2 states. And according to 3.2.1. Data Link
+	 * Control and Management State Machine Rules is DL Up status
+	 * reported in DL Active state.
+	 */
+	u8 ltssm_state = advk_pcie_ltssm_state(pcie);
+	return ltssm_state >= LTSSM_CONFIG_IDLE && ltssm_state < LTSSM_DISABLED;
+}
+
 static inline bool advk_pcie_link_training(struct advk_pcie *pcie)
 {
 	/*
@@ -798,12 +812,26 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 		return PCI_BRIDGE_EMUL_HANDLED;
 	}
 
+	case PCI_EXP_LNKCAP: {
+		u32 val = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg);
+		/*
+		 * PCI_EXP_LNKCAP_DLLLARC bit is hardwired in aardvark HW to 0.
+		 * But support for PCI_EXP_LNKSTA_DLLLA is emulated via ltssm
+		 * state so explicitly enable PCI_EXP_LNKCAP_DLLLARC flag.
+		 */
+		val |= PCI_EXP_LNKCAP_DLLLARC;
+		*value = val;
+		return PCI_BRIDGE_EMUL_HANDLED;
+	}
+
 	case PCI_EXP_LNKCTL: {
 		/* u32 contains both PCI_EXP_LNKCTL and PCI_EXP_LNKSTA */
 		u32 val = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg) &
 			~(PCI_EXP_LNKSTA_LT << 16);
 		if (advk_pcie_link_training(pcie))
 			val |= (PCI_EXP_LNKSTA_LT << 16);
+		if (advk_pcie_link_active(pcie))
+			val |= (PCI_EXP_LNKSTA_DLLLA << 16);
 		*value = val;
 		return PCI_BRIDGE_EMUL_HANDLED;
 	}
@@ -811,7 +839,6 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 	case PCI_CAP_LIST_ID:
 	case PCI_EXP_DEVCAP:
 	case PCI_EXP_DEVCTL:
-	case PCI_EXP_LNKCAP:
 		*value = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg);
 		return PCI_BRIDGE_EMUL_HANDLED;
 	default:
-- 
GitLab


From 6a0da19be5eb819311ac9d54e42ed7b6c78cf6db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:44 +0200
Subject: [PATCH 1071/4878] PCI: aardvark: Fix configuring Reference clock
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 46ef6090dbf590711cb12680b6eafde5fa21fe87 upstream.

Commit 366697018c9a ("PCI: aardvark: Add PHY support") introduced
configuration of PCIe Reference clock via PCIE_CORE_REF_CLK_REG register,
but did it incorrectly.

PCIe Reference clock differential pair is routed from system board to
endpoint card, so on CPU side it has output direction. Therefore it is
required to enable transmitting and disable receiving.

Default configuration according to Armada 3700 Functional Specifications is
enabled receiver part and disabled transmitter.

We need this change because otherwise PCIe Reference clock is configured to
some undefined state when differential pair is used for both transmitting
and receiving.

Fix this by disabling receiver part.

Link: https://lore.kernel.org/r/20211005180952.6812-6-kabel@kernel.org
Fixes: 366697018c9a ("PCI: aardvark: Add PHY support")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 3225e288639f2..1221cf9a88c37 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -98,6 +98,7 @@
 #define     PCIE_CORE_CTRL2_MSI_ENABLE		BIT(10)
 #define PCIE_CORE_REF_CLK_REG			(CONTROL_BASE_ADDR + 0x14)
 #define     PCIE_CORE_REF_CLK_TX_ENABLE		BIT(1)
+#define     PCIE_CORE_REF_CLK_RX_ENABLE		BIT(2)
 #define PCIE_MSG_LOG_REG			(CONTROL_BASE_ADDR + 0x30)
 #define PCIE_ISR0_REG				(CONTROL_BASE_ADDR + 0x40)
 #define PCIE_MSG_PM_PME_MASK			BIT(7)
@@ -529,9 +530,15 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	u32 reg;
 	int i;
 
-	/* Enable TX */
+	/*
+	 * Configure PCIe Reference clock. Direction is from the PCIe
+	 * controller to the endpoint card, so enable transmitting of
+	 * Reference clock differential signal off-chip and disable
+	 * receiving off-chip differential signal.
+	 */
 	reg = advk_readl(pcie, PCIE_CORE_REF_CLK_REG);
 	reg |= PCIE_CORE_REF_CLK_TX_ENABLE;
+	reg &= ~PCIE_CORE_REF_CLK_RX_ENABLE;
 	advk_writel(pcie, reg, PCIE_CORE_REF_CLK_REG);
 
 	/* Set to Direct mode */
-- 
GitLab


From 2ad10bbf8477d54f61c2d977da12a11091e7610a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Thu, 28 Oct 2021 20:56:54 +0200
Subject: [PATCH 1072/4878] PCI: aardvark: Fix return value of MSI domain
 .alloc() method
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e4313be1599d397625c14fb7826996813622decf upstream.

MSI domain callback .alloc() (implemented by advk_msi_irq_domain_alloc()
function) should return zero on success, since non-zero value indicates
failure.

When the driver was converted to generic MSI API in commit f21a8b1b6837
("PCI: aardvark: Move to MSI handling using generic MSI support"), it
was converted so that it returns hwirq number.

Fix this.

Link: https://lore.kernel.org/r/20211028185659.20329-3-kabel@kernel.org
Fixes: f21a8b1b6837 ("PCI: aardvark: Move to MSI handling using generic MSI support")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 1221cf9a88c37..27be96f6b2763 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1180,7 +1180,7 @@ static int advk_msi_irq_domain_alloc(struct irq_domain *domain,
 				    domain->host_data, handle_simple_irq,
 				    NULL, NULL);
 
-	return hwirq;
+	return 0;
 }
 
 static void advk_msi_irq_domain_free(struct irq_domain *domain,
-- 
GitLab


From 4bb5399c1c73e36fbb186f3eda84e39e5422ed31 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Thu, 28 Oct 2021 20:56:55 +0200
Subject: [PATCH 1073/4878] PCI: aardvark: Read all 16-bits from
 PCIE_MSI_PAYLOAD_REG
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 95997723b6402cd6c53e0f9e7ac640ec64eaaff8 upstream.

The PCIE_MSI_PAYLOAD_REG contains 16-bit MSI number, not only lower
8 bits. Fix reading content of this register and add a comment
describing the access to this register.

Link: https://lore.kernel.org/r/20211028185659.20329-4-kabel@kernel.org
Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 27be96f6b2763..62a91c9da7a30 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -118,6 +118,7 @@
 #define PCIE_MSI_STATUS_REG			(CONTROL_BASE_ADDR + 0x58)
 #define PCIE_MSI_MASK_REG			(CONTROL_BASE_ADDR + 0x5C)
 #define PCIE_MSI_PAYLOAD_REG			(CONTROL_BASE_ADDR + 0x9C)
+#define     PCIE_MSI_DATA_MASK			GENMASK(15, 0)
 
 /* PCIe window configuration */
 #define OB_WIN_BASE_ADDR			0x4c00
@@ -1361,8 +1362,12 @@ static void advk_pcie_handle_msi(struct advk_pcie *pcie)
 		if (!(BIT(msi_idx) & msi_status))
 			continue;
 
+		/*
+		 * msi_idx contains bits [4:0] of the msi_data and msi_data
+		 * contains 16bit MSI interrupt number
+		 */
 		advk_writel(pcie, BIT(msi_idx), PCIE_MSI_STATUS_REG);
-		msi_data = advk_readl(pcie, PCIE_MSI_PAYLOAD_REG) & 0xFF;
+		msi_data = advk_readl(pcie, PCIE_MSI_PAYLOAD_REG) & PCIE_MSI_DATA_MASK;
 		generic_handle_irq(msi_data);
 	}
 
-- 
GitLab


From 2b99c6fb65b43804d7db5c2eab9d46db8909d83c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 28 Oct 2021 20:56:56 +0200
Subject: [PATCH 1074/4878] PCI: aardvark: Fix support for bus mastering and
 PCI_COMMAND on emulated bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 771153fc884f566a89af2d30033b7f3bc6e24e84 upstream.

From very vague, ambiguous and incomplete information from Marvell we
deduced that the 32-bit Aardvark register at address 0x4
(PCIE_CORE_CMD_STATUS_REG), which is not documented for Root Complex mode
in the Functional Specification (only for Endpoint mode), controls two
16-bit PCIe registers: Command Register and Status Registers of PCIe Root
Port.

This means that bit 2 controls bus mastering and forwarding of memory and
I/O requests in the upstream direction. According to PCI specifications
bits [0:2] of Command Register, this should be by default disabled on
reset. So explicitly disable these bits at early setup of the Aardvark
driver.

Remove code which unconditionally enables all 3 bits and let kernel code
(via pci_set_master() function) to handle bus mastering of Root PCIe
Bridge via emulated PCI_COMMAND on emulated bridge.

Link: https://lore.kernel.org/r/20211028185659.20329-5-kabel@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # b2a56469d550 ("PCI: aardvark: Add FIXME comment for PCIE_CORE_CMD_STATUS_REG access")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 54 +++++++++++++++++++--------
 1 file changed, 38 insertions(+), 16 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 62a91c9da7a30..eec9bb7c7a801 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -30,9 +30,6 @@
 /* PCIe core registers */
 #define PCIE_CORE_DEV_ID_REG					0x0
 #define PCIE_CORE_CMD_STATUS_REG				0x4
-#define     PCIE_CORE_CMD_IO_ACCESS_EN				BIT(0)
-#define     PCIE_CORE_CMD_MEM_ACCESS_EN				BIT(1)
-#define     PCIE_CORE_CMD_MEM_IO_REQ_EN				BIT(2)
 #define PCIE_CORE_DEV_REV_REG					0x8
 #define PCIE_CORE_PCIEXP_CAP					0xc0
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
@@ -563,6 +560,11 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	reg = (PCI_VENDOR_ID_MARVELL << 16) | PCI_VENDOR_ID_MARVELL;
 	advk_writel(pcie, reg, VENDOR_ID_REG);
 
+	/* Disable Root Bridge I/O space, memory space and bus mastering */
+	reg = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
+	reg &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+	advk_writel(pcie, reg, PCIE_CORE_CMD_STATUS_REG);
+
 	/* Set Advanced Error Capabilities and Control PF0 register */
 	reg = PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX |
 		PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX_EN |
@@ -660,19 +662,6 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 		advk_pcie_disable_ob_win(pcie, i);
 
 	advk_pcie_train_link(pcie);
-
-	/*
-	 * FIXME: The following register update is suspicious. This register is
-	 * applicable only when the PCI controller is configured for Endpoint
-	 * mode, not as a Root Complex. But apparently when this code is
-	 * removed, some cards stop working. This should be investigated and
-	 * a comment explaining this should be put here.
-	 */
-	reg = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
-	reg |= PCIE_CORE_CMD_MEM_ACCESS_EN |
-		PCIE_CORE_CMD_IO_ACCESS_EN |
-		PCIE_CORE_CMD_MEM_IO_REQ_EN;
-	advk_writel(pcie, reg, PCIE_CORE_CMD_STATUS_REG);
 }
 
 static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u32 *val)
@@ -793,6 +782,37 @@ static int advk_pcie_wait_pio(struct advk_pcie *pcie)
 	return -ETIMEDOUT;
 }
 
+static pci_bridge_emul_read_status_t
+advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge,
+				    int reg, u32 *value)
+{
+	struct advk_pcie *pcie = bridge->data;
+
+	switch (reg) {
+	case PCI_COMMAND:
+		*value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
+		return PCI_BRIDGE_EMUL_HANDLED;
+
+	default:
+		return PCI_BRIDGE_EMUL_NOT_HANDLED;
+	}
+}
+
+static void
+advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge,
+				     int reg, u32 old, u32 new, u32 mask)
+{
+	struct advk_pcie *pcie = bridge->data;
+
+	switch (reg) {
+	case PCI_COMMAND:
+		advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG);
+		break;
+
+	default:
+		break;
+	}
+}
 
 static pci_bridge_emul_read_status_t
 advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
@@ -893,6 +913,8 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
 }
 
 static struct pci_bridge_emul_ops advk_pci_bridge_emul_ops = {
+	.read_base = advk_pci_bridge_emul_base_conf_read,
+	.write_base = advk_pci_bridge_emul_base_conf_write,
 	.read_pcie = advk_pci_bridge_emul_pcie_conf_read,
 	.write_pcie = advk_pci_bridge_emul_pcie_conf_write,
 };
-- 
GitLab


From bd5d982822cf2b14c2d6aff5a43a5f667c56c758 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 28 Oct 2021 20:56:58 +0200
Subject: [PATCH 1075/4878] PCI: aardvark: Fix support for
 PCI_BRIDGE_CTL_BUS_RESET on emulated bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit bc4fac42e5f8460af09c0a7f2f1915be09e20c71 upstream.

Aardvark supports PCIe Hot Reset via PCIE_CORE_CTRL1_REG.

Use it for implementing PCI_BRIDGE_CTL_BUS_RESET bit of PCI_BRIDGE_CONTROL
register on emulated bridge.

With this, the function pci_reset_secondary_bus() starts working and can
reset connected PCIe card. Custom userspace script [1] which uses setpci
can trigger PCIe Hot Reset and reset the card manually.

[1] https://alexforencich.com/wiki/en/pcie/hot-reset-linux

Link: https://lore.kernel.org/r/20211028185659.20329-7-kabel@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index eec9bb7c7a801..0a2d894257401 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -793,6 +793,22 @@ advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge,
 		*value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 		return PCI_BRIDGE_EMUL_HANDLED;
 
+	case PCI_INTERRUPT_LINE: {
+		/*
+		 * From the whole 32bit register we support reading from HW only
+		 * one bit: PCI_BRIDGE_CTL_BUS_RESET.
+		 * Other bits are retrieved only from emulated config buffer.
+		 */
+		__le32 *cfgspace = (__le32 *)&bridge->conf;
+		u32 val = le32_to_cpu(cfgspace[PCI_INTERRUPT_LINE / 4]);
+		if (advk_readl(pcie, PCIE_CORE_CTRL1_REG) & HOT_RESET_GEN)
+			val |= PCI_BRIDGE_CTL_BUS_RESET << 16;
+		else
+			val &= ~(PCI_BRIDGE_CTL_BUS_RESET << 16);
+		*value = val;
+		return PCI_BRIDGE_EMUL_HANDLED;
+	}
+
 	default:
 		return PCI_BRIDGE_EMUL_NOT_HANDLED;
 	}
@@ -809,6 +825,17 @@ advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge,
 		advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG);
 		break;
 
+	case PCI_INTERRUPT_LINE:
+		if (mask & (PCI_BRIDGE_CTL_BUS_RESET << 16)) {
+			u32 val = advk_readl(pcie, PCIE_CORE_CTRL1_REG);
+			if (new & (PCI_BRIDGE_CTL_BUS_RESET << 16))
+				val |= HOT_RESET_GEN;
+			else
+				val &= ~HOT_RESET_GEN;
+			advk_writel(pcie, val, PCIE_CORE_CTRL1_REG);
+		}
+		break;
+
 	default:
 		break;
 	}
-- 
GitLab


From e2e8961fbc3aaf164ed4bff922e327de11ba312e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 28 Oct 2021 20:56:57 +0200
Subject: [PATCH 1076/4878] PCI: aardvark: Set PCI Bridge Class Code to PCI
 Bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 84e1b4045dc887b78bdc87d92927093dc3a465aa upstream.

Aardvark controller has something like config space of a Root Port
available at offset 0x0 of internal registers - these registers are used
for implementation of the emulated bridge.

The default value of Class Code of this bridge corresponds to a RAID Mass
storage controller, though. (This is probably intended for when the
controller is used as Endpoint.)

Change the Class Code to correspond to a PCI Bridge.

Add comment explaining this change.

Link: https://lore.kernel.org/r/20211028185659.20329-6-kabel@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 0a2d894257401..64799e92c9460 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -560,6 +560,26 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	reg = (PCI_VENDOR_ID_MARVELL << 16) | PCI_VENDOR_ID_MARVELL;
 	advk_writel(pcie, reg, VENDOR_ID_REG);
 
+	/*
+	 * Change Class Code of PCI Bridge device to PCI Bridge (0x600400),
+	 * because the default value is Mass storage controller (0x010400).
+	 *
+	 * Note that this Aardvark PCI Bridge does not have compliant Type 1
+	 * Configuration Space and it even cannot be accessed via Aardvark's
+	 * PCI config space access method. Something like config space is
+	 * available in internal Aardvark registers starting at offset 0x0
+	 * and is reported as Type 0. In range 0x10 - 0x34 it has totally
+	 * different registers.
+	 *
+	 * Therefore driver uses emulation of PCI Bridge which emulates
+	 * access to configuration space via internal Aardvark registers or
+	 * emulated configuration buffer.
+	 */
+	reg = advk_readl(pcie, PCIE_CORE_DEV_REV_REG);
+	reg &= ~0xffffff00;
+	reg |= (PCI_CLASS_BRIDGE_PCI << 8) << 8;
+	advk_writel(pcie, reg, PCIE_CORE_DEV_REV_REG);
+
 	/* Disable Root Bridge I/O space, memory space and bus mastering */
 	reg = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 	reg &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
-- 
GitLab


From bc1274df3ff418f46ffe98e452f6ff149951f53c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 28 Oct 2021 20:56:59 +0200
Subject: [PATCH 1077/4878] PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on
 emulated bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 239edf686c14a9ff926dec2f350289ed7adfefe2 upstream.

This register is exported at address offset 0x30.

Link: https://lore.kernel.org/r/20211028185659.20329-8-kabel@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 64799e92c9460..ec7bafbe813f0 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -31,6 +31,7 @@
 #define PCIE_CORE_DEV_ID_REG					0x0
 #define PCIE_CORE_CMD_STATUS_REG				0x4
 #define PCIE_CORE_DEV_REV_REG					0x8
+#define PCIE_CORE_EXP_ROM_BAR_REG				0x30
 #define PCIE_CORE_PCIEXP_CAP					0xc0
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
 #define     PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX			BIT(5)
@@ -813,6 +814,10 @@ advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge,
 		*value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 		return PCI_BRIDGE_EMUL_HANDLED;
 
+	case PCI_ROM_ADDRESS1:
+		*value = advk_readl(pcie, PCIE_CORE_EXP_ROM_BAR_REG);
+		return PCI_BRIDGE_EMUL_HANDLED;
+
 	case PCI_INTERRUPT_LINE: {
 		/*
 		 * From the whole 32bit register we support reading from HW only
@@ -845,6 +850,10 @@ advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge,
 		advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG);
 		break;
 
+	case PCI_ROM_ADDRESS1:
+		advk_writel(pcie, new, PCIE_CORE_EXP_ROM_BAR_REG);
+		break;
+
 	case PCI_INTERRUPT_LINE:
 		if (mask & (PCI_BRIDGE_CTL_BUS_RESET << 16)) {
 			u32 val = advk_readl(pcie, PCIE_CORE_CTRL1_REG);
-- 
GitLab


From ceeb0a8a8716a1c72af3fa4d4f98c3aced32b037 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Fri, 8 Oct 2021 17:38:20 +0800
Subject: [PATCH 1078/4878] quota: check block number when reading the block in
 quota file

commit 9bf3d20331295b1ecb81f4ed9ef358c51699a050 upstream.

The block number in the quota tree on disk should be smaller than the
v2_disk_dqinfo.dqi_blocks. If the quota file was corrupted, we may be
allocating an 'allocated' block and that would lead to a loop in a tree,
which will probably trigger oops later. This patch adds a check for the
block number in the quota tree to prevent such potential issue.

Link: https://lore.kernel.org/r/20211008093821.1001186-2-yi.zhang@huawei.com
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Cc: stable@kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/quota/quota_tree.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c
index c5562c871c8be..c459ac0cb2c71 100644
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -488,6 +488,13 @@ static int remove_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
 		goto out_buf;
 	}
 	newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
+	if (newblk < QT_TREEOFF || newblk >= info->dqi_blocks) {
+		quota_error(dquot->dq_sb, "Getting block too big (%u >= %u)",
+			    newblk, info->dqi_blocks);
+		ret = -EUCLEAN;
+		goto out_buf;
+	}
+
 	if (depth == info->dqi_qtree_depth - 1) {
 		ret = free_dqentry(info, dquot, newblk);
 		newblk = 0;
@@ -587,6 +594,13 @@ static loff_t find_tree_dqentry(struct qtree_mem_dqinfo *info,
 	blk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
 	if (!blk)	/* No reference? */
 		goto out_buf;
+	if (blk < QT_TREEOFF || blk >= info->dqi_blocks) {
+		quota_error(dquot->dq_sb, "Getting block too big (%u >= %u)",
+			    blk, info->dqi_blocks);
+		ret = -EUCLEAN;
+		goto out_buf;
+	}
+
 	if (depth < info->dqi_qtree_depth - 1)
 		ret = find_tree_dqentry(info, dquot, blk, depth+1);
 	else
-- 
GitLab


From 6bc8317b8cd5b2f8860f0923bab8085a6b4cb318 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Fri, 8 Oct 2021 17:38:21 +0800
Subject: [PATCH 1079/4878] quota: correct error number in free_dqentry()

commit d0e36a62bd4c60c09acc40e06ba4831a4d0bc75b upstream.

Fix the error path in free_dqentry(), pass out the error number if the
block to free is not correct.

Fixes: 1ccd14b9c271 ("quota: Split off quota tree handling into a separate file")
Link: https://lore.kernel.org/r/20211008093821.1001186-3-yi.zhang@huawei.com
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Cc: stable@kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/quota/quota_tree.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c
index c459ac0cb2c71..1a188fbdf34e5 100644
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -423,6 +423,7 @@ static int free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot,
 		quota_error(dquot->dq_sb, "Quota structure has offset to "
 			"other block (%u) than it should (%u)", blk,
 			(uint)(dquot->dq_off >> info->dqi_blocksize_bits));
+		ret = -EIO;
 		goto out_buf;
 	}
 	ret = read_blk(info, blk, buf);
-- 
GitLab


From 46709163a54aa02e314aa8e1db41a3053763af17 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 22 Oct 2021 09:43:23 +0800
Subject: [PATCH 1080/4878] pinctrl: core: fix possible memory leak in
 pinctrl_enable()

commit c7892ae13e461ed20154321eb792e07ebe38f5b3 upstream.

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff888020a7a680 (size 64):
  comm "i2c-mcp23018-41", pid 23090, jiffies 4295160544 (age 8.680s)
  hex dump (first 32 bytes):
    00 48 d3 1e 80 88 ff ff 00 1a 56 c1 ff ff ff ff  .H........V.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000083c79b35>] kmem_cache_alloc_trace+0x16d/0x360
    [<0000000051803c95>] pinctrl_init_controller+0x6ed/0xb70
    [<0000000064346707>] pinctrl_register+0x27/0x80
    [<0000000029b0e186>] devm_pinctrl_register+0x5b/0xe0
    [<00000000391f5a3e>] mcp23s08_probe_one+0x968/0x118a [pinctrl_mcp23s08]
    [<000000006112c039>] mcp230xx_probe+0x266/0x560 [pinctrl_mcp23s08_i2c]

If pinctrl_claim_hogs() fails, the 'pindesc' allocated in pinctrl_register_one_pin()
need be freed.

Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 950b0d91dc10 ("pinctrl: core: Fix regression caused by delayed work for hogs")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211022014323.1156924-1-yangyingliang@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 6e6825d17a1d1..840000870d5a0 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -2077,6 +2077,8 @@ int pinctrl_enable(struct pinctrl_dev *pctldev)
 	if (error) {
 		dev_err(pctldev->dev, "could not claim hogs: %i\n",
 			error);
+		pinctrl_free_pindescs(pctldev, pctldev->desc->pins,
+				      pctldev->desc->npins);
 		mutex_destroy(&pctldev->mutex);
 		kfree(pctldev);
 
-- 
GitLab


From a4e7a8c4321faa4e64868f4d79a29fa0f1c805d7 Mon Sep 17 00:00:00 2001
From: Tao Zhang <quic_taozha@quicinc.com>
Date: Thu, 19 Aug 2021 17:29:37 +0800
Subject: [PATCH 1081/4878] coresight: cti: Correct the parameter for
 pm_runtime_put

commit 692c9a499b286ea478f41b23a91fe3873b9e1326 upstream.

The input parameter of the function pm_runtime_put should be the
same in the function cti_enable_hw and cti_disable_hw. The correct
parameter to use here should be dev->parent.

Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Fixes: 835d722ba10a ("coresight: cti: Initial CoreSight CTI Driver")
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1629365377-5937-1-git-send-email-quic_taozha@quicinc.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwtracing/coresight/coresight-cti-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-cti-core.c b/drivers/hwtracing/coresight/coresight-cti-core.c
index 61dbc1afd8da5..7ea93598f0eea 100644
--- a/drivers/hwtracing/coresight/coresight-cti-core.c
+++ b/drivers/hwtracing/coresight/coresight-cti-core.c
@@ -174,7 +174,7 @@ static int cti_disable_hw(struct cti_drvdata *drvdata)
 	coresight_disclaim_device_unlocked(drvdata->base);
 	CS_LOCK(drvdata->base);
 	spin_unlock(&drvdata->spinlock);
-	pm_runtime_put(dev);
+	pm_runtime_put(dev->parent);
 	return 0;
 
 	/* not disabled this call */
-- 
GitLab


From 638462060859244823a572bd0e35e3a45d2978d5 Mon Sep 17 00:00:00 2001
From: Pekka Korpinen <pekka.korpinen@iki.fi>
Date: Wed, 29 Sep 2021 21:57:55 +0300
Subject: [PATCH 1082/4878] iio: dac: ad5446: Fix ad5622_write() return value

commit 558df982d4ead9cac628153d0d7b60feae05ddc8 upstream.

On success i2c_master_send() returns the number of bytes written. The
call from iio_write_channel_info(), however, expects the return value to
be zero on success.

This bug causes incorrect consumption of the sysfs buffer in
iio_write_channel_info(). When writing more than two characters to
out_voltage0_raw, the ad5446 write handler is called multiple times
causing unexpected behavior.

Fixes: 3ec36a2cf0d5 ("iio:ad5446: Add support for I2C based DACs")
Signed-off-by: Pekka Korpinen <pekka.korpinen@iki.fi>
Link: https://lore.kernel.org/r/20210929185755.2384-1-pekka.korpinen@iki.fi
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/dac/ad5446.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index d87e21016863c..e86886ca5ee41 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -531,8 +531,15 @@ static int ad5622_write(struct ad5446_state *st, unsigned val)
 {
 	struct i2c_client *client = to_i2c_client(st->dev);
 	__be16 data = cpu_to_be16(val);
+	int ret;
+
+	ret = i2c_master_send(client, (char *)&data, sizeof(data));
+	if (ret < 0)
+		return ret;
+	if (ret != sizeof(data))
+		return -EIO;
 
-	return i2c_master_send(client, (char *)&data, sizeof(data));
+	return 0;
 }
 
 /*
-- 
GitLab


From ab4755ea9114760abd146751f4407af85c29c72c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nuno=20S=C3=A1?= <nuno.sa@analog.com>
Date: Wed, 18 Aug 2021 10:05:25 +0200
Subject: [PATCH 1083/4878] iio: ad5770r: make devicetree property reading
 consistent
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 26df977a909f818b7d346b3990735513e7e0bf93 upstream.

The bindings file for this driver is defining the property as 'reg' but
the driver was reading it with the 'num' name. The bindings actually had
the 'num' property when added in
commit ea52c21268e6 ("dt-bindings: iio: dac: Add docs for AD5770R DAC")
and then changed it to 'reg' in
commit 2cf3818f18b2 ("dt-bindings: iio: dac: AD5570R fix bindings errors").
However, both these commits landed in v5.7 so the assumption is
that either 'num' is not being used or if it is, the validations were not
done.

Anyways, if someone comes back yelling about this, we might just support
both of the properties in the future. Not ideal, but that's life...

Fixes: 2cf3818f18b2 ("dt-bindings: iio: dac: AD5570R fix bindings errors")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210818080525.62790-1-nuno.sa@analog.com
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/dac/ad5770r.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/dac/ad5770r.c b/drivers/iio/dac/ad5770r.c
index 42decba1463cc..56d8bd2dd92fd 100644
--- a/drivers/iio/dac/ad5770r.c
+++ b/drivers/iio/dac/ad5770r.c
@@ -522,7 +522,7 @@ static int ad5770r_channel_config(struct ad5770r_state *st)
 		return -EINVAL;
 
 	device_for_each_child_node(&st->spi->dev, child) {
-		ret = fwnode_property_read_u32(child, "num", &num);
+		ret = fwnode_property_read_u32(child, "reg", &num);
 		if (ret)
 			goto err_child_out;
 		if (num >= AD5770R_MAX_CHANNELS) {
-- 
GitLab


From 5f31af4e78b4d8f006bb7049138fbc7c9141ac7a Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Fri, 15 Oct 2021 16:55:43 +0800
Subject: [PATCH 1084/4878] USB: serial: keyspan: fix memleak on probe errors

commit 910c996335c37552ee30fcb837375b808bb4f33b upstream.

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff888258228440 (size 64):
  comm "kworker/7:2", pid 2005, jiffies 4294989509 (age 824.540s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8167939c>] slab_post_alloc_hook+0x9c/0x490
    [<ffffffff8167f627>] kmem_cache_alloc_trace+0x1f7/0x470
    [<ffffffffa02ac0e4>] keyspan_port_probe+0xa4/0x5d0 [keyspan]
    [<ffffffffa0294c07>] usb_serial_device_probe+0x97/0x1d0 [usbserial]
    [<ffffffff82b50ca7>] really_probe+0x167/0x460
    [<ffffffff82b51099>] __driver_probe_device+0xf9/0x180
    [<ffffffff82b51173>] driver_probe_device+0x53/0x130
    [<ffffffff82b516f5>] __device_attach_driver+0x105/0x130
    [<ffffffff82b4cfe9>] bus_for_each_drv+0x129/0x190
    [<ffffffff82b50a69>] __device_attach+0x1c9/0x270
    [<ffffffff82b518d0>] device_initial_probe+0x20/0x30
    [<ffffffff82b4f062>] bus_probe_device+0x142/0x160
    [<ffffffff82b4a4e9>] device_add+0x829/0x1300
    [<ffffffffa0295fda>] usb_serial_probe.cold+0xc9b/0x14ac [usbserial]
    [<ffffffffa02266aa>] usb_probe_interface+0x1aa/0x3c0 [usbcore]
    [<ffffffff82b50ca7>] really_probe+0x167/0x460

If keyspan_port_probe() fails to allocate memory for an out_buffer[i] or
in_buffer[i], the previously allocated memory for out_buffer or
in_buffer needs to be freed on the error handling path, otherwise a
memory leak will result.

Fixes: bad41a5bf177 ("USB: keyspan: fix port DMA-buffer allocations")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Link: https://lore.kernel.org/r/20211015085543.1203011-1-wanghai38@huawei.com
Cc: stable@vger.kernel.org      # 3.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/keyspan.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index aa3dbce22cfbe..451759f38b573 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -2910,22 +2910,22 @@ static int keyspan_port_probe(struct usb_serial_port *port)
 	for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i) {
 		p_priv->in_buffer[i] = kzalloc(IN_BUFLEN, GFP_KERNEL);
 		if (!p_priv->in_buffer[i])
-			goto err_in_buffer;
+			goto err_free_in_buffer;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i) {
 		p_priv->out_buffer[i] = kzalloc(OUT_BUFLEN, GFP_KERNEL);
 		if (!p_priv->out_buffer[i])
-			goto err_out_buffer;
+			goto err_free_out_buffer;
 	}
 
 	p_priv->inack_buffer = kzalloc(INACK_BUFLEN, GFP_KERNEL);
 	if (!p_priv->inack_buffer)
-		goto err_inack_buffer;
+		goto err_free_out_buffer;
 
 	p_priv->outcont_buffer = kzalloc(OUTCONT_BUFLEN, GFP_KERNEL);
 	if (!p_priv->outcont_buffer)
-		goto err_outcont_buffer;
+		goto err_free_inack_buffer;
 
 	p_priv->device_details = d_details;
 
@@ -2971,15 +2971,14 @@ static int keyspan_port_probe(struct usb_serial_port *port)
 
 	return 0;
 
-err_outcont_buffer:
+err_free_inack_buffer:
 	kfree(p_priv->inack_buffer);
-err_inack_buffer:
+err_free_out_buffer:
 	for (i = 0; i < ARRAY_SIZE(p_priv->out_buffer); ++i)
 		kfree(p_priv->out_buffer[i]);
-err_out_buffer:
+err_free_in_buffer:
 	for (i = 0; i < ARRAY_SIZE(p_priv->in_buffer); ++i)
 		kfree(p_priv->in_buffer[i]);
-err_in_buffer:
 	kfree(p_priv);
 
 	return -ENOMEM;
-- 
GitLab


From edc546625456da4cc1968086b5a76143fbb0c75d Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 15 Oct 2021 13:14:20 +0200
Subject: [PATCH 1085/4878] serial: 8250: fix racy uartclk update

commit 211cde4f5817dc88ef7f8f2fa286e57fbf14c8ee upstream.

Commit 868f3ee6e452 ("serial: 8250: Add 8250 port clock update method")
added a hack to support SoCs where the UART reference clock can
change behind the back of the driver but failed to add the proper
locking.

First, make sure to take a reference to the tty struct to avoid
dereferencing a NULL pointer if the clock change races with a hangup.

Second, the termios semaphore must be held during the update to prevent
a racing termios change.

Fixes: 868f3ee6e452 ("serial: 8250: Add 8250 port clock update method")
Fixes: c8dff3aa8241 ("serial: 8250: Skip uninitialized TTY port baud rate update")
Cc: stable@vger.kernel.org      # 5.9
Cc: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211015111422.1027-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_port.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 5d40f1010fbfd..110a19c5138e8 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2675,21 +2675,32 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
 void serial8250_update_uartclk(struct uart_port *port, unsigned int uartclk)
 {
 	struct uart_8250_port *up = up_to_u8250p(port);
+	struct tty_port *tport = &port->state->port;
 	unsigned int baud, quot, frac = 0;
 	struct ktermios *termios;
+	struct tty_struct *tty;
 	unsigned long flags;
 
-	mutex_lock(&port->state->port.mutex);
+	tty = tty_port_tty_get(tport);
+	if (!tty) {
+		mutex_lock(&tport->mutex);
+		port->uartclk = uartclk;
+		mutex_unlock(&tport->mutex);
+		return;
+	}
+
+	down_write(&tty->termios_rwsem);
+	mutex_lock(&tport->mutex);
 
 	if (port->uartclk == uartclk)
 		goto out_lock;
 
 	port->uartclk = uartclk;
 
-	if (!tty_port_initialized(&port->state->port))
+	if (!tty_port_initialized(tport))
 		goto out_lock;
 
-	termios = &port->state->port.tty->termios;
+	termios = &tty->termios;
 
 	baud = serial8250_get_baud_rate(port, termios, NULL);
 	quot = serial8250_get_divisor(port, baud, &frac);
@@ -2706,7 +2717,9 @@ void serial8250_update_uartclk(struct uart_port *port, unsigned int uartclk)
 	serial8250_rpm_put(up);
 
 out_lock:
-	mutex_unlock(&port->state->port.mutex);
+	mutex_unlock(&tport->mutex);
+	up_write(&tty->termios_rwsem);
+	tty_kref_put(tty);
 }
 EXPORT_SYMBOL_GPL(serial8250_update_uartclk);
 
-- 
GitLab


From 0e71591e916ba1c2d183c72c8eda7a2be990b599 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:58:11 +0200
Subject: [PATCH 1086/4878] most: fix control-message timeouts

commit 63b3e810eff65fb8587fcb26fa0b56802be12dcf upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Use the common control-message timeout defines for the five-second
timeouts.

Fixes: 97a6f772f36b ("drivers: most: add USB adapter driver")
Cc: stable@vger.kernel.org      # 5.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025115811.5410-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/most/most_usb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/most/most_usb.c b/drivers/most/most_usb.c
index 2640c5b326a49..acabb7715b423 100644
--- a/drivers/most/most_usb.c
+++ b/drivers/most/most_usb.c
@@ -149,7 +149,8 @@ static inline int drci_rd_reg(struct usb_device *dev, u16 reg, u16 *buf)
 	retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 				 DRCI_READ_REQ, req_type,
 				 0x0000,
-				 reg, dma_buf, sizeof(*dma_buf), 5 * HZ);
+				 reg, dma_buf, sizeof(*dma_buf),
+				 USB_CTRL_GET_TIMEOUT);
 	*buf = le16_to_cpu(*dma_buf);
 	kfree(dma_buf);
 
@@ -176,7 +177,7 @@ static inline int drci_wr_reg(struct usb_device *dev, u16 reg, u16 data)
 			       reg,
 			       NULL,
 			       0,
-			       5 * HZ);
+			       USB_CTRL_SET_TIMEOUT);
 }
 
 static inline int start_sync_ep(struct usb_device *usb_dev, u16 ep)
-- 
GitLab


From 6edf4cffe1b46e2b1f07659132224706d01cf6de Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:51:59 +0200
Subject: [PATCH 1087/4878] USB: iowarrior: fix control-message timeouts

commit 79a4479a17b83310deb0b1a2a274fe5be12d2318 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Use the common control-message timeout define for the five-second
timeout and drop the driver-specific one.

Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.")
Cc: stable@vger.kernel.org      # 2.6.21
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025115159.4954-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/iowarrior.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 70ec296815268..72a06af250812 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -99,10 +99,6 @@ struct iowarrior {
 /*    globals   */
 /*--------------*/
 
-/*
- *  USB spec identifies 5 second timeouts.
- */
-#define GET_TIMEOUT 5
 #define USB_REQ_GET_REPORT  0x01
 //#if 0
 static int usb_get_report(struct usb_device *dev,
@@ -114,7 +110,7 @@ static int usb_get_report(struct usb_device *dev,
 			       USB_DIR_IN | USB_TYPE_CLASS |
 			       USB_RECIP_INTERFACE, (type << 8) + id,
 			       inter->desc.bInterfaceNumber, buf, size,
-			       GET_TIMEOUT*HZ);
+			       USB_CTRL_GET_TIMEOUT);
 }
 //#endif
 
@@ -129,7 +125,7 @@ static int usb_set_report(struct usb_interface *intf, unsigned char type,
 			       USB_TYPE_CLASS | USB_RECIP_INTERFACE,
 			       (type << 8) + id,
 			       intf->cur_altsetting->desc.bInterfaceNumber, buf,
-			       size, HZ);
+			       size, 1000);
 }
 
 /*---------------------*/
-- 
GitLab


From 898622adb7e9232b01482a24146b6c3492e3a919 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Thu, 21 Oct 2021 10:34:47 +0200
Subject: [PATCH 1088/4878] USB: chipidea: fix interrupt deadlock

commit 9aaa81c3366e8393a62374e3a1c67c69edc07b8a upstream.

Chipidea core was calling the interrupt handler from non-IRQ context
with interrupts enabled, something which can lead to a deadlock if
there's an actual interrupt trying to take a lock that's already held
(e.g. the controller lock in udc_irq()).

Add a wrapper that can be used to fake interrupts instead of calling the
handler directly.

Fixes: 3ecb3e09b042 ("usb: chipidea: Use extcon framework for VBUS and ID detect")
Fixes: 876d4e1e8298 ("usb: chipidea: core: add wakeup support for extcon")
Cc: Peter Chen <peter.chen@kernel.org>
Cc: stable@vger.kernel.org      # 4.4
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211021083447.20078-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/core.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index aa40e510b806e..127b1a62b1bf4 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -509,7 +509,7 @@ int hw_device_reset(struct ci_hdrc *ci)
 	return 0;
 }
 
-static irqreturn_t ci_irq(int irq, void *data)
+static irqreturn_t ci_irq_handler(int irq, void *data)
 {
 	struct ci_hdrc *ci = data;
 	irqreturn_t ret = IRQ_NONE;
@@ -562,6 +562,15 @@ static irqreturn_t ci_irq(int irq, void *data)
 	return ret;
 }
 
+static void ci_irq(struct ci_hdrc *ci)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	ci_irq_handler(ci->irq, ci);
+	local_irq_restore(flags);
+}
+
 static int ci_cable_notifier(struct notifier_block *nb, unsigned long event,
 			     void *ptr)
 {
@@ -571,7 +580,7 @@ static int ci_cable_notifier(struct notifier_block *nb, unsigned long event,
 	cbl->connected = event;
 	cbl->changed = true;
 
-	ci_irq(ci->irq, ci);
+	ci_irq(ci);
 	return NOTIFY_DONE;
 }
 
@@ -612,7 +621,7 @@ static int ci_usb_role_switch_set(struct usb_role_switch *sw,
 	if (cable) {
 		cable->changed = true;
 		cable->connected = false;
-		ci_irq(ci->irq, ci);
+		ci_irq(ci);
 		spin_unlock_irqrestore(&ci->lock, flags);
 		if (ci->wq && role != USB_ROLE_NONE)
 			flush_workqueue(ci->wq);
@@ -630,7 +639,7 @@ static int ci_usb_role_switch_set(struct usb_role_switch *sw,
 	if (cable) {
 		cable->changed = true;
 		cable->connected = true;
-		ci_irq(ci->irq, ci);
+		ci_irq(ci);
 	}
 	spin_unlock_irqrestore(&ci->lock, flags);
 	pm_runtime_put_sync(ci->dev);
@@ -1166,7 +1175,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 		}
 	}
 
-	ret = devm_request_irq(dev, ci->irq, ci_irq, IRQF_SHARED,
+	ret = devm_request_irq(dev, ci->irq, ci_irq_handler, IRQF_SHARED,
 			ci->platdata->name, ci);
 	if (ret)
 		goto stop;
@@ -1287,11 +1296,11 @@ static void ci_extcon_wakeup_int(struct ci_hdrc *ci)
 
 	if (!IS_ERR(cable_id->edev) && ci->is_otg &&
 		(otgsc & OTGSC_IDIE) && (otgsc & OTGSC_IDIS))
-		ci_irq(ci->irq, ci);
+		ci_irq(ci);
 
 	if (!IS_ERR(cable_vbus->edev) && ci->is_otg &&
 		(otgsc & OTGSC_BSVIE) && (otgsc & OTGSC_BSVIS))
-		ci_irq(ci->irq, ci);
+		ci_irq(ci);
 }
 
 static int ci_controller_resume(struct device *dev)
-- 
GitLab


From 890e4edcecfa2380ec8507a260f4c8eb7da218b9 Mon Sep 17 00:00:00 2001
From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Date: Tue, 14 Sep 2021 14:18:05 +0200
Subject: [PATCH 1089/4878] power: supply: max17042_battery: Clear status bits
 in interrupt handler

commit 0cf48167b87e388fa1268c9fe6d2443ae7f43d8a upstream.

The gauge requires us to clear the status bits manually for some alerts
to be properly dismissed. Previously the IRQ was configured to react only
on falling edge, which wasn't technically correct (the ALRT line is active
low), but it had a happy side-effect of preventing interrupt storms
on uncleared alerts from happening.

Fixes: 7fbf6b731bca ("power: supply: max17042: Do not enforce (incorrect) interrupt trigger type")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/max17042_battery.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index 98b2e369f80ec..76b0f45a20b40 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -875,6 +875,10 @@ static irqreturn_t max17042_thread_handler(int id, void *dev)
 		max17042_set_soc_threshold(chip, 1);
 	}
 
+	/* we implicitly handle all alerts via power_supply_changed */
+	regmap_clear_bits(chip->regmap, MAX17042_STATUS,
+			  0xFFFF & ~(STATUS_POR_BIT | STATUS_BST_BIT));
+
 	power_supply_changed(chip->battery);
 	return IRQ_HANDLED;
 }
-- 
GitLab


From 6758d6651627323ec95d5e4cccf31f4760dcfba1 Mon Sep 17 00:00:00 2001
From: Charan Teja Reddy <charante@codeaurora.org>
Date: Fri, 23 Jul 2021 18:01:08 +0530
Subject: [PATCH 1090/4878] dma-buf: WARN on dmabuf release with pending
 attachments
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f492283b157053e9555787262f058ae33096f568 ]

It is expected from the clients to follow the below steps on an imported
dmabuf fd:
a) dmabuf = dma_buf_get(fd) // Get the dmabuf from fd
b) dma_buf_attach(dmabuf); // Clients attach to the dmabuf
   o Here the kernel does some slab allocations, say for
dma_buf_attachment and may be some other slab allocation in the
dmabuf->ops->attach().
c) Client may need to do dma_buf_map_attachment().
d) Accordingly dma_buf_unmap_attachment() should be called.
e) dma_buf_detach () // Clients detach to the dmabuf.
   o Here the slab allocations made in b) are freed.
f) dma_buf_put(dmabuf) // Can free the dmabuf if it is the last
reference.

Now say an erroneous client failed at step c) above thus it directly
called dma_buf_put(), step f) above. Considering that it may be the last
reference to the dmabuf, buffer will be freed with pending attachments
left to the dmabuf which can show up as the 'memory leak'. This should
at least be reported as the WARN().

Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1627043468-16381-1-git-send-email-charante@codeaurora.org
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma-buf/dma-buf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 922416b3aaceb..93e9bf7382595 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -79,6 +79,7 @@ static void dma_buf_release(struct dentry *dentry)
 	if (dmabuf->resv == (struct dma_resv *)&dmabuf[1])
 		dma_resv_fini(dmabuf->resv);
 
+	WARN_ON(!list_empty(&dmabuf->attachments));
 	module_put(dmabuf->owner);
 	kfree(dmabuf->name);
 	kfree(dmabuf);
-- 
GitLab


From 780fff2c75f096f3bc46855b105b83b4cec5cba7 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 30 May 2021 13:04:25 +0200
Subject: [PATCH 1091/4878] drm: panel-orientation-quirks: Update the Lenovo
 Ideapad D330 quirk (v2)

[ Upstream commit 820a2ab23d5eab4ccfb82581eda8ad4acf18458f ]

2 improvements to the Lenovo Ideapad D330 panel-orientation quirks:

1. Some versions of the Lenovo Ideapad D330 have a DMI_PRODUCT_NAME of
"81H3" and others have "81MD". Testing has shown that the "81MD" also has
a 90 degree mounted panel. Drop the DMI_PRODUCT_NAME from the existing
quirk so that the existing quirk matches both variants.

2. Some of the Lenovo Ideapad D330 models have a HD (800x1280) screen
instead of a FHD (1200x1920) screen (both are mounted right-side-up) add
a second Lenovo Ideapad D330 quirk for the HD version.

Changes in v2:
- Add a new quirk for Lenovo Ideapad D330 models with a HD screen instead
  of a FHD screen

Link: https://github.com/systemd/systemd/pull/18884
Acked-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210530110428.12994-2-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index e1b2ce4921ae7..5d0942e3985b2 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -223,10 +223,15 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
-	}, {	/* Lenovo Ideapad D330 */
+	}, {	/* Lenovo Ideapad D330-10IGM (HD) */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
+		},
+		.driver_data = (void *)&lcd800x1280_rightside_up,
+	}, {	/* Lenovo Ideapad D330-10IGM (FHD) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
-- 
GitLab


From 62b90d7eeb6deb0124dcfe1b12f41c1524d26352 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 30 May 2021 13:04:26 +0200
Subject: [PATCH 1092/4878] drm: panel-orientation-quirks: Add quirk for KD
 Kurio Smart C15200 2-in-1

[ Upstream commit a53f1dd3ab9fec715c6c2e8e01bf4d3c07eef8e5 ]

The KD Kurio Smart C15200 2-in-1 uses  a panel which has been mounted 90
degrees rotated. Add a quirk for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20210530110428.12994-3-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 5d0942e3985b2..cf4db2cdebbbd 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -205,6 +205,13 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
 		},
 		.driver_data = (void *)&itworks_tw891,
+	}, {	/* KD Kurio Smart C15200 2-in-1 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "KD Interactive"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Kurio Smart"),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "KDM960BCP"),
+		},
+		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/*
 		 * Lenovo Ideapad Miix 310 laptop, only some production batches
 		 * have a portrait screen, the resolution checks makes the quirk
-- 
GitLab


From 509ae4a4f0745bff108723e5d9a61b1113ea89fe Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 30 May 2021 13:04:27 +0200
Subject: [PATCH 1093/4878] drm: panel-orientation-quirks: Add quirk for the
 Samsung Galaxy Book 10.6

[ Upstream commit 88fa1fde918951c175ae5ea0f31efc4bb1736ab9 ]

The Samsung Galaxy Book 10.6 uses a panel which has been mounted
90 degrees rotated. Add a quirk for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20210530110428.12994-4-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index cf4db2cdebbbd..926094b83e2f4 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -109,6 +109,12 @@ static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data lcd1280x1920_rightside_up = {
+	.width = 1280,
+	.height = 1920,
+	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
+};
+
 static const struct dmi_system_id orientation_data[] = {
 	{	/* Acer One 10 (S1003) */
 		.matches = {
@@ -249,6 +255,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Default string"),
 		},
 		.driver_data = (void *)&onegx1_pro,
+	}, {	/* Samsung GalaxyBook 10.6 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galaxy Book 10.6"),
+		},
+		.driver_data = (void *)&lcd1280x1920_rightside_up,
 	}, {	/* VIOS LTH17 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
-- 
GitLab


From 4dfba42604f08a505f1a1efc69ec5207ea6243de Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sat, 28 Aug 2021 18:18:18 +0200
Subject: [PATCH 1094/4878] Bluetooth: sco: Fix lock_sock() blockage by
 memcpy_from_msg()

[ Upstream commit 99c23da0eed4fd20cae8243f2b51e10e66aa0951 ]

The sco_send_frame() also takes lock_sock() during memcpy_from_msg()
call that may be endlessly blocked by a task with userfaultd
technique, and this will result in a hung task watchdog trigger.

Just like the similar fix for hci_sock_sendmsg() in commit
92c685dc5de0 ("Bluetooth: reorganize functions..."), this patch moves
the  memcpy_from_msg() out of lock_sock() for addressing the hang.

This should be the last piece for fixing CVE-2021-3640 after a few
already queued fixes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/sco.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 7c24a9acbc459..93df269a64707 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -281,7 +281,8 @@ static int sco_connect(struct hci_dev *hdev, struct sock *sk)
 	return err;
 }
 
-static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
+static int sco_send_frame(struct sock *sk, void *buf, int len,
+			  unsigned int msg_flags)
 {
 	struct sco_conn *conn = sco_pi(sk)->conn;
 	struct sk_buff *skb;
@@ -293,15 +294,11 @@ static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len)
 
 	BT_DBG("sk %p len %d", sk, len);
 
-	skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err);
+	skb = bt_skb_send_alloc(sk, len, msg_flags & MSG_DONTWAIT, &err);
 	if (!skb)
 		return err;
 
-	if (memcpy_from_msg(skb_put(skb, len), msg, len)) {
-		kfree_skb(skb);
-		return -EFAULT;
-	}
-
+	memcpy(skb_put(skb, len), buf, len);
 	hci_send_sco(conn->hcon, skb);
 
 	return len;
@@ -726,6 +723,7 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
 			    size_t len)
 {
 	struct sock *sk = sock->sk;
+	void *buf;
 	int err;
 
 	BT_DBG("sock %p, sk %p", sock, sk);
@@ -737,14 +735,24 @@ static int sco_sock_sendmsg(struct socket *sock, struct msghdr *msg,
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
+	buf = kmalloc(len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (memcpy_from_msg(buf, msg, len)) {
+		kfree(buf);
+		return -EFAULT;
+	}
+
 	lock_sock(sk);
 
 	if (sk->sk_state == BT_CONNECTED)
-		err = sco_send_frame(sk, msg, len);
+		err = sco_send_frame(sk, buf, len, msg->msg_flags);
 	else
 		err = -ENOTCONN;
 
 	release_sock(sk);
+	kfree(buf);
 	return err;
 }
 
-- 
GitLab


From c10465f6d6208db2e45a6dac1db312b9589b2583 Mon Sep 17 00:00:00 2001
From: Wang ShaoBo <bobo.shaobowang@huawei.com>
Date: Tue, 31 Aug 2021 17:35:37 -0700
Subject: [PATCH 1095/4878] Bluetooth: fix use-after-free error in
 lock_sock_nested()

[ Upstream commit 1bff51ea59a9afb67d2dd78518ab0582a54a472c ]

use-after-free error in lock_sock_nested is reported:

[  179.140137][ T3731] =====================================================
[  179.142675][ T3731] BUG: KMSAN: use-after-free in lock_sock_nested+0x280/0x2c0
[  179.145494][ T3731] CPU: 4 PID: 3731 Comm: kworker/4:2 Not tainted 5.12.0-rc6+ #54
[  179.148432][ T3731] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
[  179.151806][ T3731] Workqueue: events l2cap_chan_timeout
[  179.152730][ T3731] Call Trace:
[  179.153301][ T3731]  dump_stack+0x24c/0x2e0
[  179.154063][ T3731]  kmsan_report+0xfb/0x1e0
[  179.154855][ T3731]  __msan_warning+0x5c/0xa0
[  179.155579][ T3731]  lock_sock_nested+0x280/0x2c0
[  179.156436][ T3731]  ? kmsan_get_metadata+0x116/0x180
[  179.157257][ T3731]  l2cap_sock_teardown_cb+0xb8/0x890
[  179.158154][ T3731]  ? __msan_metadata_ptr_for_load_8+0x10/0x20
[  179.159141][ T3731]  ? kmsan_get_metadata+0x116/0x180
[  179.159994][ T3731]  ? kmsan_get_shadow_origin_ptr+0x84/0xb0
[  179.160959][ T3731]  ? l2cap_sock_recv_cb+0x420/0x420
[  179.161834][ T3731]  l2cap_chan_del+0x3e1/0x1d50
[  179.162608][ T3731]  ? kmsan_get_metadata+0x116/0x180
[  179.163435][ T3731]  ? kmsan_get_shadow_origin_ptr+0x84/0xb0
[  179.164406][ T3731]  l2cap_chan_close+0xeea/0x1050
[  179.165189][ T3731]  ? kmsan_internal_unpoison_shadow+0x42/0x70
[  179.166180][ T3731]  l2cap_chan_timeout+0x1da/0x590
[  179.167066][ T3731]  ? __msan_metadata_ptr_for_load_8+0x10/0x20
[  179.168023][ T3731]  ? l2cap_chan_create+0x560/0x560
[  179.168818][ T3731]  process_one_work+0x121d/0x1ff0
[  179.169598][ T3731]  worker_thread+0x121b/0x2370
[  179.170346][ T3731]  kthread+0x4ef/0x610
[  179.171010][ T3731]  ? process_one_work+0x1ff0/0x1ff0
[  179.171828][ T3731]  ? kthread_blkcg+0x110/0x110
[  179.172587][ T3731]  ret_from_fork+0x1f/0x30
[  179.173348][ T3731]
[  179.173752][ T3731] Uninit was created at:
[  179.174409][ T3731]  kmsan_internal_poison_shadow+0x5c/0xf0
[  179.175373][ T3731]  kmsan_slab_free+0x76/0xc0
[  179.176060][ T3731]  kfree+0x3a5/0x1180
[  179.176664][ T3731]  __sk_destruct+0x8af/0xb80
[  179.177375][ T3731]  __sk_free+0x812/0x8c0
[  179.178032][ T3731]  sk_free+0x97/0x130
[  179.178686][ T3731]  l2cap_sock_release+0x3d5/0x4d0
[  179.179457][ T3731]  sock_close+0x150/0x450
[  179.180117][ T3731]  __fput+0x6bd/0xf00
[  179.180787][ T3731]  ____fput+0x37/0x40
[  179.181481][ T3731]  task_work_run+0x140/0x280
[  179.182219][ T3731]  do_exit+0xe51/0x3e60
[  179.182930][ T3731]  do_group_exit+0x20e/0x450
[  179.183656][ T3731]  get_signal+0x2dfb/0x38f0
[  179.184344][ T3731]  arch_do_signal_or_restart+0xaa/0xe10
[  179.185266][ T3731]  exit_to_user_mode_prepare+0x2d2/0x560
[  179.186136][ T3731]  syscall_exit_to_user_mode+0x35/0x60
[  179.186984][ T3731]  do_syscall_64+0xc5/0x140
[  179.187681][ T3731]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  179.188604][ T3731] =====================================================

In our case, there are two Thread A and B:

Context: Thread A:              Context: Thread B:

l2cap_chan_timeout()            __se_sys_shutdown()
  l2cap_chan_close()              l2cap_sock_shutdown()
    l2cap_chan_del()                l2cap_chan_close()
      l2cap_sock_teardown_cb()        l2cap_sock_teardown_cb()

Once l2cap_sock_teardown_cb() excuted, this sock will be marked as SOCK_ZAPPED,
and can be treated as killable in l2cap_sock_kill() if sock_orphan() has
excuted, at this time we close sock through sock_close() which end to call
l2cap_sock_kill() like Thread C:

Context: Thread C:

sock_close()
  l2cap_sock_release()
    sock_orphan()
    l2cap_sock_kill()  #free sock if refcnt is 1

If C completed, Once A or B reaches l2cap_sock_teardown_cb() again,
use-after-free happened.

We should set chan->data to NULL if sock is destructed, for telling teardown
operation is not allowed in l2cap_sock_teardown_cb(), and also we should
avoid killing an already killed socket in l2cap_sock_close_cb().

Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/l2cap_sock.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index c99d65ef13b1e..160c016a5dfb9 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1508,6 +1508,9 @@ static void l2cap_sock_close_cb(struct l2cap_chan *chan)
 {
 	struct sock *sk = chan->data;
 
+	if (!sk)
+		return;
+
 	l2cap_sock_kill(sk);
 }
 
@@ -1516,6 +1519,9 @@ static void l2cap_sock_teardown_cb(struct l2cap_chan *chan, int err)
 	struct sock *sk = chan->data;
 	struct sock *parent;
 
+	if (!sk)
+		return;
+
 	BT_DBG("chan %p state %s", chan, state_to_string(chan->state));
 
 	/* This callback can be called both for server (BT_LISTEN)
@@ -1707,8 +1713,10 @@ static void l2cap_sock_destruct(struct sock *sk)
 {
 	BT_DBG("sk %p", sk);
 
-	if (l2cap_pi(sk)->chan)
+	if (l2cap_pi(sk)->chan) {
+		l2cap_pi(sk)->chan->data = NULL;
 		l2cap_chan_put(l2cap_pi(sk)->chan);
+	}
 
 	if (l2cap_pi(sk)->rx_busy_skb) {
 		kfree_skb(l2cap_pi(sk)->rx_busy_skb);
-- 
GitLab


From 7987f31e54a2a453c54bdc516fe7a48035fddf03 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Sat, 11 Sep 2021 10:24:40 +0000
Subject: [PATCH 1096/4878] drm/panel-orientation-quirks: add Valve Steam Deck

[ Upstream commit 9eeb7b4e40bfd69d8aaa920c7e9df751c9e11dce ]

Valve's Steam Deck has a 800x1280 LCD screen.

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Jared Baldridge <jrb@expunge.us>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210911102430.253986-1-contact@emersion.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 926094b83e2f4..a950d5db211c5 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -261,6 +261,13 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galaxy Book 10.6"),
 		},
 		.driver_data = (void *)&lcd1280x1920_rightside_up,
+	}, {	/* Valve Steam Deck */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Valve"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "1"),
+		},
+		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* VIOS LTH17 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
-- 
GitLab


From 7f43cda650d5ca7cac9ced26bb2f3f64643ddb9d Mon Sep 17 00:00:00 2001
From: Scott Wood <swood@redhat.com>
Date: Fri, 20 Aug 2021 09:42:36 +0200
Subject: [PATCH 1097/4878] rcutorture: Avoid problematic critical section
 nesting on PREEMPT_RT

[ Upstream commit 71921a9606ddbcc1d98c00eca7ae82c373d1fecd ]

rcutorture is generating some nesting scenarios that are not compatible on PREEMPT_RT.
For example:
	preempt_disable();
	rcu_read_lock_bh();
	preempt_enable();
	rcu_read_unlock_bh();

The problem here is that on PREEMPT_RT the bottom halves have to be
disabled and enabled in preemptible context.

Reorder locking: start with BH locking and continue with then with
disabling preemption or interrupts. In the unlocking do it reverse by
first enabling interrupts and preemption and BH at the very end.
Ensure that on PREEMPT_RT BH locking remains unchanged if in
non-preemptible context.

Link: https://lkml.kernel.org/r/20190911165729.11178-6-swood@redhat.com
Link: https://lkml.kernel.org/r/20210819182035.GF4126399@paulmck-ThinkPad-P17-Gen-1
Signed-off-by: Scott Wood <swood@redhat.com>
[bigeasy: Drop ATOM_BH, make it only about changing BH in atomic
context. Allow enabling RCU in IRQ-off section. Reword commit message.]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/rcu/rcutorture.c | 48 ++++++++++++++++++++++++++++++-----------
 1 file changed, 36 insertions(+), 12 deletions(-)

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 916ea4f66e4b2..6c1aea48a79a1 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1238,28 +1238,34 @@ static void rcutorture_one_extend(int *readstate, int newstate,
 	/* First, put new protection in place to avoid critical-section gap. */
 	if (statesnew & RCUTORTURE_RDR_BH)
 		local_bh_disable();
+	if (statesnew & RCUTORTURE_RDR_RBH)
+		rcu_read_lock_bh();
 	if (statesnew & RCUTORTURE_RDR_IRQ)
 		local_irq_disable();
 	if (statesnew & RCUTORTURE_RDR_PREEMPT)
 		preempt_disable();
-	if (statesnew & RCUTORTURE_RDR_RBH)
-		rcu_read_lock_bh();
 	if (statesnew & RCUTORTURE_RDR_SCHED)
 		rcu_read_lock_sched();
 	if (statesnew & RCUTORTURE_RDR_RCU)
 		idxnew = cur_ops->readlock() << RCUTORTURE_RDR_SHIFT;
 
-	/* Next, remove old protection, irq first due to bh conflict. */
+	/*
+	 * Next, remove old protection, in decreasing order of strength
+	 * to avoid unlock paths that aren't safe in the stronger
+	 * context. Namely: BH can not be enabled with disabled interrupts.
+	 * Additionally PREEMPT_RT requires that BH is enabled in preemptible
+	 * context.
+	 */
 	if (statesold & RCUTORTURE_RDR_IRQ)
 		local_irq_enable();
-	if (statesold & RCUTORTURE_RDR_BH)
-		local_bh_enable();
 	if (statesold & RCUTORTURE_RDR_PREEMPT)
 		preempt_enable();
-	if (statesold & RCUTORTURE_RDR_RBH)
-		rcu_read_unlock_bh();
 	if (statesold & RCUTORTURE_RDR_SCHED)
 		rcu_read_unlock_sched();
+	if (statesold & RCUTORTURE_RDR_BH)
+		local_bh_enable();
+	if (statesold & RCUTORTURE_RDR_RBH)
+		rcu_read_unlock_bh();
 	if (statesold & RCUTORTURE_RDR_RCU) {
 		bool lockit = !statesnew && !(torture_random(trsp) & 0xffff);
 
@@ -1302,6 +1308,9 @@ rcutorture_extend_mask(int oldmask, struct torture_random_state *trsp)
 	int mask = rcutorture_extend_mask_max();
 	unsigned long randmask1 = torture_random(trsp) >> 8;
 	unsigned long randmask2 = randmask1 >> 3;
+	unsigned long preempts = RCUTORTURE_RDR_PREEMPT | RCUTORTURE_RDR_SCHED;
+	unsigned long preempts_irq = preempts | RCUTORTURE_RDR_IRQ;
+	unsigned long bhs = RCUTORTURE_RDR_BH | RCUTORTURE_RDR_RBH;
 
 	WARN_ON_ONCE(mask >> RCUTORTURE_RDR_SHIFT);
 	/* Mostly only one bit (need preemption!), sometimes lots of bits. */
@@ -1309,11 +1318,26 @@ rcutorture_extend_mask(int oldmask, struct torture_random_state *trsp)
 		mask = mask & randmask2;
 	else
 		mask = mask & (1 << (randmask2 % RCUTORTURE_RDR_NBITS));
-	/* Can't enable bh w/irq disabled. */
-	if ((mask & RCUTORTURE_RDR_IRQ) &&
-	    ((!(mask & RCUTORTURE_RDR_BH) && (oldmask & RCUTORTURE_RDR_BH)) ||
-	     (!(mask & RCUTORTURE_RDR_RBH) && (oldmask & RCUTORTURE_RDR_RBH))))
-		mask |= RCUTORTURE_RDR_BH | RCUTORTURE_RDR_RBH;
+
+	/*
+	 * Can't enable bh w/irq disabled.
+	 */
+	if (mask & RCUTORTURE_RDR_IRQ)
+		mask |= oldmask & bhs;
+
+	/*
+	 * Ideally these sequences would be detected in debug builds
+	 * (regardless of RT), but until then don't stop testing
+	 * them on non-RT.
+	 */
+	if (IS_ENABLED(CONFIG_PREEMPT_RT)) {
+		/* Can't modify BH in atomic context */
+		if (oldmask & preempts_irq)
+			mask &= ~bhs;
+		if ((oldmask | mask) & preempts_irq)
+			mask |= oldmask & bhs;
+	}
+
 	return mask ?: RCUTORTURE_RDR_RCU;
 }
 
-- 
GitLab


From 396e302cc835975d42c7c88750e406ef2e01536e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Barnab=C3=A1s=20P=C5=91cze?= <pobrn@protonmail.com>
Date: Sat, 4 Sep 2021 17:56:26 +0000
Subject: [PATCH 1098/4878] platform/x86: wmi: do not fail if disabling fails
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 1975718c488a39128f1f515b23ae61a5a214cc3d ]

Previously, `__query_block()` would fail if the
second WCxx method call failed. However, the
WQxx method might have succeeded, and potentially
allocated memory for the result. Instead of
throwing away the result and potentially
leaking memory, ignore the result of
the second WCxx call.

Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210904175450.156801-25-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/wmi.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index d88f388a3450f..1f80b26281628 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -354,7 +354,14 @@ static acpi_status __query_block(struct wmi_block *wblock, u8 instance,
 	 * the WQxx method failed - we should disable collection anyway.
 	 */
 	if ((block->flags & ACPI_WMI_EXPENSIVE) && ACPI_SUCCESS(wc_status)) {
-		status = acpi_execute_simple_method(handle, wc_method, 0);
+		/*
+		 * Ignore whether this WCxx call succeeds or not since
+		 * the previously executed WQxx method call might have
+		 * succeeded, and returning the failing status code
+		 * of this call would throw away the result of the WQxx
+		 * call, potentially leaking memory.
+		 */
+		acpi_execute_simple_method(handle, wc_method, 0);
 	}
 
 	return status;
-- 
GitLab


From 5af57ce8a6155fe3e4270d28d171abf8903bebc0 Mon Sep 17 00:00:00 2001
From: Aleksander Jan Bajkowski <olek2@wp.pl>
Date: Tue, 14 Sep 2021 23:20:58 +0200
Subject: [PATCH 1099/4878] MIPS: lantiq: dma: add small delay after reset

[ Upstream commit c12aa581f6d5e80c3c3675ab26a52c2b3b62f76e ]

Reading the DMA registers immediately after the reset causes
Data Bus Error. Adding a small delay fixes this issue.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/lantiq/xway/dma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index aeb1b989cd4ee..24c6267f78698 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -11,6 +11,7 @@
 #include <linux/export.h>
 #include <linux/spinlock.h>
 #include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/err.h>
 
 #include <lantiq_soc.h>
@@ -221,6 +222,8 @@ ltq_dma_init(struct platform_device *pdev)
 	clk_enable(clk);
 	ltq_dma_w32_mask(0, DMA_RESET, LTQ_DMA_CTRL);
 
+	usleep_range(1, 10);
+
 	/* disable all interrupts */
 	ltq_dma_w32(0, LTQ_DMA_IRNEN);
 
-- 
GitLab


From b92a5df2c7adc79a57481445f67de0c1c716581f Mon Sep 17 00:00:00 2001
From: Aleksander Jan Bajkowski <olek2@wp.pl>
Date: Tue, 14 Sep 2021 23:20:59 +0200
Subject: [PATCH 1100/4878] MIPS: lantiq: dma: reset correct number of channel

[ Upstream commit 5ca9ce2ba4d5884cd94d1a856c675ab1242cd242 ]

Different SoCs have a different number of channels, e.g .:
* amazon-se has 10 channels,
* danube+ar9 have 20 channels,
* vr9 has 28 channels,
* ar10 has 24 channels.

We can read the ID register and, depending on the reported
number of channels, reset the appropriate number of channels.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/lantiq/xway/dma.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index 24c6267f78698..e45077aecf83a 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -30,6 +30,7 @@
 #define LTQ_DMA_PCTRL		0x44
 #define LTQ_DMA_IRNEN		0xf4
 
+#define DMA_ID_CHNR		GENMASK(26, 20)	/* channel number */
 #define DMA_DESCPT		BIT(3)		/* descriptor complete irq */
 #define DMA_TX			BIT(8)		/* TX channel direction */
 #define DMA_CHAN_ON		BIT(0)		/* channel on / off bit */
@@ -40,7 +41,6 @@
 #define DMA_POLL		BIT(31)		/* turn on channel polling */
 #define DMA_CLK_DIV4		BIT(6)		/* polling clock divider */
 #define DMA_2W_BURST		BIT(1)		/* 2 word burst length */
-#define DMA_MAX_CHANNEL		20		/* the soc has 20 channels */
 #define DMA_ETOP_ENDIANNESS	(0xf << 8) /* endianness swap etop channels */
 #define DMA_WEIGHT	(BIT(17) | BIT(16))	/* default channel wheight */
 
@@ -206,7 +206,7 @@ ltq_dma_init(struct platform_device *pdev)
 {
 	struct clk *clk;
 	struct resource *res;
-	unsigned id;
+	unsigned int id, nchannels;
 	int i;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -228,17 +228,18 @@ ltq_dma_init(struct platform_device *pdev)
 	ltq_dma_w32(0, LTQ_DMA_IRNEN);
 
 	/* reset/configure each channel */
-	for (i = 0; i < DMA_MAX_CHANNEL; i++) {
+	id = ltq_dma_r32(LTQ_DMA_ID);
+	nchannels = ((id & DMA_ID_CHNR) >> 20);
+	for (i = 0; i < nchannels; i++) {
 		ltq_dma_w32(i, LTQ_DMA_CS);
 		ltq_dma_w32(DMA_CHAN_RST, LTQ_DMA_CCTRL);
 		ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL);
 		ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL);
 	}
 
-	id = ltq_dma_r32(LTQ_DMA_ID);
 	dev_info(&pdev->dev,
 		"Init done - hw rev: %X, ports: %d, channels: %d\n",
-		id & 0x1f, (id >> 16) & 0xf, id >> 20);
+		id & 0x1f, (id >> 16) & 0xf, nchannels);
 
 	return 0;
 }
-- 
GitLab


From 28118dcc871e4b015c6537488374b1a4bbffb6d4 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 24 Jun 2021 11:41:10 +0200
Subject: [PATCH 1101/4878] locking/lockdep: Avoid RCU-induced noinstr fail

[ Upstream commit ce0b9c805dd66d5e49fd53ec5415ae398f4c56e6 ]

vmlinux.o: warning: objtool: look_up_lock_class()+0xc7: call to rcu_read_lock_any_held() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210624095148.311980536@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/locking/lockdep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 5184f68968158..2823329143503 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -887,7 +887,7 @@ look_up_lock_class(const struct lockdep_map *lock, unsigned int subclass)
 	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
 		return NULL;
 
-	hlist_for_each_entry_rcu(class, hash_head, hash_entry) {
+	hlist_for_each_entry_rcu_notrace(class, hash_head, hash_entry) {
 		if (class->key == key) {
 			/*
 			 * Huh! same key, different name? Did someone trample
-- 
GitLab


From 8d433ab5c8c26fa33ef9013b375a74d30918ac03 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Mon, 13 Sep 2021 15:53:30 -0700
Subject: [PATCH 1102/4878] net: sched: update default qdisc visibility after
 Tx queue cnt changes

[ Upstream commit 1e080f17750d1083e8a32f7b350584ae1cd7ff20 ]

mq / mqprio make the default child qdiscs visible. They only do
so for the qdiscs which are within real_num_tx_queues when the
device is registered. Depending on order of calls in the driver,
or if user space changes config via ethtool -L the number of
qdiscs visible under tc qdisc show will differ from the number
of queues. This is confusing to users and potentially to system
configuration scripts which try to make sure qdiscs have the
right parameters.

Add a new Qdisc_ops callback and make relevant qdiscs TTRT.

Note that this uncovers the "shortcut" created by
commit 1f27cde313d7 ("net: sched: use pfifo_fast for non real queues")
The default child qdiscs beyond initial real_num_tx are always
pfifo_fast, no matter what the sysfs setting is. Fixing this
gets a little tricky because we'd need to keep a reference
on whatever the default qdisc was at the time of creation.
In practice this is likely an non-issue the qdiscs likely have
to be configured to non-default settings, so whatever user space
is doing such configuration can replace the pfifos... now that
it will see them.

Reported-by: Matthew Massey <matthewmassey@fb.com>
Reviewed-by: Dave Taht <dave.taht@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/sch_generic.h |  4 ++++
 net/core/dev.c            |  2 ++
 net/sched/sch_generic.c   |  9 +++++++++
 net/sched/sch_mq.c        | 24 ++++++++++++++++++++++++
 net/sched/sch_mqprio.c    | 23 +++++++++++++++++++++++
 5 files changed, 62 insertions(+)

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f8631ad3c8686..9226a84dcc14d 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -302,6 +302,8 @@ struct Qdisc_ops {
 					  struct netlink_ext_ack *extack);
 	void			(*attach)(struct Qdisc *sch);
 	int			(*change_tx_queue_len)(struct Qdisc *, unsigned int);
+	void			(*change_real_num_tx)(struct Qdisc *sch,
+						      unsigned int new_real_tx);
 
 	int			(*dump)(struct Qdisc *, struct sk_buff *);
 	int			(*dump_stats)(struct Qdisc *, struct gnet_dump *);
@@ -683,6 +685,8 @@ void qdisc_class_hash_grow(struct Qdisc *, struct Qdisc_class_hash *);
 void qdisc_class_hash_destroy(struct Qdisc_class_hash *);
 
 int dev_qdisc_change_tx_queue_len(struct net_device *dev);
+void dev_qdisc_change_real_num_tx(struct net_device *dev,
+				  unsigned int new_real_tx);
 void dev_init_scheduler(struct net_device *dev);
 void dev_shutdown(struct net_device *dev);
 void dev_activate(struct net_device *dev);
diff --git a/net/core/dev.c b/net/core/dev.c
index e14294e9ba321..7dd7b9fb600c8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2973,6 +2973,8 @@ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq)
 		if (dev->num_tc)
 			netif_setup_tc(dev, txq);
 
+		dev_qdisc_change_real_num_tx(dev, txq);
+
 		dev->real_num_tx_queues = txq;
 
 		if (disabling) {
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 05aa2571a4095..6a9c1a39874a0 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1303,6 +1303,15 @@ static int qdisc_change_tx_queue_len(struct net_device *dev,
 	return 0;
 }
 
+void dev_qdisc_change_real_num_tx(struct net_device *dev,
+				  unsigned int new_real_tx)
+{
+	struct Qdisc *qdisc = dev->qdisc;
+
+	if (qdisc->ops->change_real_num_tx)
+		qdisc->ops->change_real_num_tx(qdisc, new_real_tx);
+}
+
 int dev_qdisc_change_tx_queue_len(struct net_device *dev)
 {
 	bool up = dev->flags & IFF_UP;
diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c
index e79f1afe0cfd6..db18d8a860f9c 100644
--- a/net/sched/sch_mq.c
+++ b/net/sched/sch_mq.c
@@ -125,6 +125,29 @@ static void mq_attach(struct Qdisc *sch)
 	priv->qdiscs = NULL;
 }
 
+static void mq_change_real_num_tx(struct Qdisc *sch, unsigned int new_real_tx)
+{
+#ifdef CONFIG_NET_SCHED
+	struct net_device *dev = qdisc_dev(sch);
+	struct Qdisc *qdisc;
+	unsigned int i;
+
+	for (i = new_real_tx; i < dev->real_num_tx_queues; i++) {
+		qdisc = netdev_get_tx_queue(dev, i)->qdisc_sleeping;
+		/* Only update the default qdiscs we created,
+		 * qdiscs with handles are always hashed.
+		 */
+		if (qdisc != &noop_qdisc && !qdisc->handle)
+			qdisc_hash_del(qdisc);
+	}
+	for (i = dev->real_num_tx_queues; i < new_real_tx; i++) {
+		qdisc = netdev_get_tx_queue(dev, i)->qdisc_sleeping;
+		if (qdisc != &noop_qdisc && !qdisc->handle)
+			qdisc_hash_add(qdisc, false);
+	}
+#endif
+}
+
 static int mq_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
 	struct net_device *dev = qdisc_dev(sch);
@@ -288,6 +311,7 @@ struct Qdisc_ops mq_qdisc_ops __read_mostly = {
 	.init		= mq_init,
 	.destroy	= mq_destroy,
 	.attach		= mq_attach,
+	.change_real_num_tx = mq_change_real_num_tx,
 	.dump		= mq_dump,
 	.owner		= THIS_MODULE,
 };
diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index 5eb3b1b7ae5e7..50e15add6068f 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -306,6 +306,28 @@ static void mqprio_attach(struct Qdisc *sch)
 	priv->qdiscs = NULL;
 }
 
+static void mqprio_change_real_num_tx(struct Qdisc *sch,
+				      unsigned int new_real_tx)
+{
+	struct net_device *dev = qdisc_dev(sch);
+	struct Qdisc *qdisc;
+	unsigned int i;
+
+	for (i = new_real_tx; i < dev->real_num_tx_queues; i++) {
+		qdisc = netdev_get_tx_queue(dev, i)->qdisc_sleeping;
+		/* Only update the default qdiscs we created,
+		 * qdiscs with handles are always hashed.
+		 */
+		if (qdisc != &noop_qdisc && !qdisc->handle)
+			qdisc_hash_del(qdisc);
+	}
+	for (i = dev->real_num_tx_queues; i < new_real_tx; i++) {
+		qdisc = netdev_get_tx_queue(dev, i)->qdisc_sleeping;
+		if (qdisc != &noop_qdisc && !qdisc->handle)
+			qdisc_hash_add(qdisc, false);
+	}
+}
+
 static struct netdev_queue *mqprio_queue_get(struct Qdisc *sch,
 					     unsigned long cl)
 {
@@ -629,6 +651,7 @@ static struct Qdisc_ops mqprio_qdisc_ops __read_mostly = {
 	.init		= mqprio_init,
 	.destroy	= mqprio_destroy,
 	.attach		= mqprio_attach,
+	.change_real_num_tx = mqprio_change_real_num_tx,
 	.dump		= mqprio_dump,
 	.owner		= THIS_MODULE,
 };
-- 
GitLab


From 02ddf26d849dd241e22a8713e15e243d851199cc Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@kernel.org>
Date: Wed, 11 Aug 2021 09:07:44 -0700
Subject: [PATCH 1103/4878] rcu-tasks: Move RTGS_WAIT_CBS to beginning of
 rcu_tasks_kthread() loop

[ Upstream commit 0db7c32ad3160ae06f497d48a74bd46a2a35e6bf ]

Early in debugging, it made some sense to differentiate the first
iteration from subsequent iterations, but now this just causes confusion.
This commit therefore moves the "set_tasks_gp_state(rtp, RTGS_WAIT_CBS)"
statement to the beginning of the "for" loop in rcu_tasks_kthread().

Reported-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/rcu/tasks.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h
index b338f514ee5aa..7c05c5ab78653 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -197,6 +197,7 @@ static int __noreturn rcu_tasks_kthread(void *arg)
 	 * This loop is terminated by the system going down.  ;-)
 	 */
 	for (;;) {
+		set_tasks_gp_state(rtp, RTGS_WAIT_CBS);
 
 		/* Pick up any new callbacks. */
 		raw_spin_lock_irqsave(&rtp->cbs_lock, flags);
@@ -236,8 +237,6 @@ static int __noreturn rcu_tasks_kthread(void *arg)
 		}
 		/* Paranoid sleep to keep this from entering a tight loop */
 		schedule_timeout_idle(rtp->gp_sleep);
-
-		set_tasks_gp_state(rtp, RTGS_WAIT_CBS);
 	}
 }
 
-- 
GitLab


From 3fac6feca95fd7e8029c72be874bd62796f2f9cb Mon Sep 17 00:00:00 2001
From: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Date: Sat, 28 Aug 2021 23:41:40 -0700
Subject: [PATCH 1104/4878] smackfs: Fix use-after-free in netlbl_catmap_walk()

[ Upstream commit 0817534ff9ea809fac1322c5c8c574be8483ea57 ]

Syzkaller reported use-after-free bug as described in [1]. The bug is
triggered when smk_set_cipso() tries to free stale category bitmaps
while there are concurrent reader(s) using the same bitmaps.

Wait for RCU grace period to finish before freeing the category bitmaps
in smk_set_cipso(). This makes sure that there are no more readers using
the stale bitmaps and freeing them should be safe.

[1] https://lore.kernel.org/netdev/000000000000a814c505ca657a4e@google.com/

Reported-by: syzbot+3f91de0b813cc3d19a80@syzkaller.appspotmail.com
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/smack/smackfs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index b88c1a9538334..e33f98d25fc02 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -831,6 +831,7 @@ static int smk_open_cipso(struct inode *inode, struct file *file)
 static ssize_t smk_set_cipso(struct file *file, const char __user *buf,
 				size_t count, loff_t *ppos, int format)
 {
+	struct netlbl_lsm_catmap *old_cat;
 	struct smack_known *skp;
 	struct netlbl_lsm_secattr ncats;
 	char mapcatset[SMK_CIPSOLEN];
@@ -920,9 +921,11 @@ static ssize_t smk_set_cipso(struct file *file, const char __user *buf,
 
 	rc = smk_netlbl_mls(maplevel, mapcatset, &ncats, SMK_CIPSOLEN);
 	if (rc >= 0) {
-		netlbl_catmap_free(skp->smk_netlabel.attr.mls.cat);
+		old_cat = skp->smk_netlabel.attr.mls.cat;
 		skp->smk_netlabel.attr.mls.cat = ncats.attr.mls.cat;
 		skp->smk_netlabel.attr.mls.lvl = ncats.attr.mls.lvl;
+		synchronize_rcu();
+		netlbl_catmap_free(old_cat);
 		rc = count;
 		/*
 		 * This mapping may have been cached, so clear the cache.
-- 
GitLab


From 1c04dabbd1aa391adeaeb6c52e121435ff21ab00 Mon Sep 17 00:00:00 2001
From: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Date: Wed, 21 Jul 2021 00:49:22 +0300
Subject: [PATCH 1105/4878] ath11k: Align bss_chan_info structure with firmware

[ Upstream commit feab5bb8f1d4621025dceae7eef62d5f92de34ac ]

pdev_id in structure 'wmi_pdev_bss_chan_info_event' is wrongly placed
at the beginning. This causes invalid values in survey dump. Hence, align
the structure with the firmware.

Note: The firmware releases follow this order since the feature was
implemented. Also, it is not changing across the branches including
QCA6390.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Ritesh Singh <ritesi@codeaurora.org>
Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210720214922.118078-3-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 1 +
 drivers/net/wireless/ath/ath11k/wmi.h | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index eca86225a3413..fca71e00123d9 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1333,6 +1333,7 @@ int ath11k_wmi_pdev_bss_chan_info_request(struct ath11k *ar,
 				     WMI_TAG_PDEV_BSS_CHAN_INFO_REQUEST) |
 			  FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
 	cmd->req_type = type;
+	cmd->pdev_id = ar->pdev->pdev_id;
 
 	ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
 		   "WMI bss chan info req type %d\n", type);
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 5a32ba0eb4f57..c47adaab7918b 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2935,6 +2935,7 @@ struct wmi_pdev_bss_chan_info_req_cmd {
 	u32 tlv_header;
 	/* ref wmi_bss_chan_info_req_type */
 	u32 req_type;
+	u32 pdev_id;
 } __packed;
 
 struct wmi_ap_ps_peer_cmd {
@@ -4028,7 +4029,6 @@ struct wmi_vdev_stopped_event {
 } __packed;
 
 struct wmi_pdev_bss_chan_info_event {
-	u32 pdev_id;
 	u32 freq;	/* Units in MHz */
 	u32 noise_floor;	/* units are dBm */
 	/* rx clear - how often the channel was unused */
@@ -4046,6 +4046,7 @@ struct wmi_pdev_bss_chan_info_event {
 	/*rx_cycle cnt for my bss in 64bits format */
 	u32 rx_bss_cycle_count_low;
 	u32 rx_bss_cycle_count_high;
+	u32 pdev_id;
 } __packed;
 
 #define WMI_VDEV_INSTALL_KEY_COMPL_STATUS_SUCCESS 0
-- 
GitLab


From 7ca1711d59f1a9ff6c7c68e5a690891082486f34 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 15 Sep 2021 16:19:46 +0200
Subject: [PATCH 1106/4878] x86: Increase exception stack sizes

[ Upstream commit 7fae4c24a2b84a66c7be399727aca11e7a888462 ]

It turns out that a single page of stack is trivial to overflow with
all the tracing gunk enabled. Raise the exception stacks to 2 pages,
which is still half the interrupt stacks, which are at 4 pages.

Reported-by: Michael Wang <yun.wang@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YUIO9Ye98S5Eb68w@hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/page_64_types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 3f49dac03617d..224d71aef6303 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -15,7 +15,7 @@
 #define THREAD_SIZE_ORDER	(2 + KASAN_STACK_ORDER)
 #define THREAD_SIZE  (PAGE_SIZE << THREAD_SIZE_ORDER)
 
-#define EXCEPTION_STACK_ORDER (0 + KASAN_STACK_ORDER)
+#define EXCEPTION_STACK_ORDER (1 + KASAN_STACK_ORDER)
 #define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
 
 #define IRQ_STACK_ORDER (2 + KASAN_STACK_ORDER)
-- 
GitLab


From bab15174ec2fdaa8c886050f83cc3441407cc478 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
Date: Tue, 14 Sep 2021 21:59:03 +0200
Subject: [PATCH 1107/4878] mwifiex: Run SET_BSS_MODE when changing from P2P to
 STATION vif-type
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c2e9666cdffd347460a2b17988db4cfaf2a68fb9 ]

We currently handle changing from the P2P to the STATION virtual
interface type slightly different than changing from P2P to ADHOC: When
changing to STATION, we don't send the SET_BSS_MODE command. We do send
that command on all other type-changes though, and it probably makes
sense to send the command since after all we just changed our BSS_MODE.
Looking at prior changes to this part of the code, it seems that this is
simply a leftover from old refactorings.

Since sending the SET_BSS_MODE command is the only difference between
mwifiex_change_vif_to_sta_adhoc() and the current code, we can now use
mwifiex_change_vif_to_sta_adhoc() for both switching to ADHOC and
STATION interface type.

This does not fix any particular bug and just "looked right", so there's
a small chance it might be a regression.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914195909.36035-4-verdre@v0yd.nl
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/marvell/mwifiex/cfg80211.c   | 22 ++++---------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index a6b9dc6700b14..7a4e3c693d38b 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -1229,29 +1229,15 @@ mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_P2P_GO:
+		if (mwifiex_cfg80211_deinit_p2p(priv))
+			return -EFAULT;
+
 		switch (type) {
-		case NL80211_IFTYPE_STATION:
-			if (mwifiex_cfg80211_deinit_p2p(priv))
-				return -EFAULT;
-			priv->adapter->curr_iface_comb.p2p_intf--;
-			priv->adapter->curr_iface_comb.sta_intf++;
-			dev->ieee80211_ptr->iftype = type;
-			if (mwifiex_deinit_priv_params(priv))
-				return -1;
-			if (mwifiex_init_new_priv_params(priv, dev, type))
-				return -1;
-			if (mwifiex_sta_init_cmd(priv, false, false))
-				return -1;
-			break;
 		case NL80211_IFTYPE_ADHOC:
-			if (mwifiex_cfg80211_deinit_p2p(priv))
-				return -EFAULT;
+		case NL80211_IFTYPE_STATION:
 			return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
 							       type, params);
-			break;
 		case NL80211_IFTYPE_AP:
-			if (mwifiex_cfg80211_deinit_p2p(priv))
-				return -EFAULT;
 			return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
 							params);
 		case NL80211_IFTYPE_UNSPECIFIED:
-- 
GitLab


From f526d948c38ddda95c1855663e8fb8b87314fdce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
Date: Tue, 14 Sep 2021 21:59:08 +0200
Subject: [PATCH 1108/4878] mwifiex: Properly initialize private structure on
 interface type changes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c606008b70627a2fc485732a53cc22f0f66d0981 ]

When creating a new virtual interface in mwifiex_add_virtual_intf(), we
update our internal driver states like bss_type, bss_priority, bss_role
and bss_mode to reflect the mode the firmware will be set to.

When switching virtual interface mode using
mwifiex_init_new_priv_params() though, we currently only update bss_mode
and bss_role. In order for the interface mode switch to actually work,
we also need to update bss_type to its proper value, so do that.

This fixes a crash of the firmware (because the driver tries to execute
commands that are invalid in AP mode) when switching from station mode
to AP mode.

Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914195909.36035-9-verdre@v0yd.nl
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/cfg80211.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index 7a4e3c693d38b..3d1b5d3d295ae 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -908,16 +908,20 @@ mwifiex_init_new_priv_params(struct mwifiex_private *priv,
 	switch (type) {
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_ADHOC:
-		priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
+		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
+		priv->bss_type = MWIFIEX_BSS_TYPE_STA;
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
-		priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
+		priv->bss_role = MWIFIEX_BSS_ROLE_STA;
+		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 		break;
 	case NL80211_IFTYPE_P2P_GO:
-		priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
+		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
+		priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
 		break;
 	case NL80211_IFTYPE_AP:
 		priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
+		priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
 		break;
 	default:
 		mwifiex_dbg(adapter, ERROR,
-- 
GitLab


From 68ac723fb17e52c101b722c10ed5ff23e1a3e071 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 20 Sep 2021 20:03:03 -0700
Subject: [PATCH 1109/4878] fscrypt: allow 256-bit master keys with AES-256-XTS

[ Upstream commit 7f595d6a6cdc336834552069a2e0a4f6d4756ddf ]

fscrypt currently requires a 512-bit master key when AES-256-XTS is
used, since AES-256-XTS keys are 512-bit and fscrypt requires that the
master key be at least as long any key that will be derived from it.

However, this is overly strict because AES-256-XTS doesn't actually have
a 512-bit security strength, but rather 256-bit.  The fact that XTS
takes twice the expected key size is a quirk of the XTS mode.  It is
sufficient to use 256 bits of entropy for AES-256-XTS, provided that it
is first properly expanded into a 512-bit key, which HKDF-SHA512 does.

Therefore, relax the check of the master key size to use the security
strength of the derived key rather than the size of the derived key
(except for v1 encryption policies, which don't use HKDF).

Besides making things more flexible for userspace, this is needed in
order for the use of a KDF which only takes a 256-bit key to be
introduced into the fscrypt key hierarchy.  This will happen with
hardware-wrapped keys support, as all known hardware which supports that
feature uses an SP800-108 KDF using AES-256-CMAC, so the wrapped keys
are wrapped 256-bit AES keys.  Moreover, there is interest in fscrypt
supporting the same type of AES-256-CMAC based KDF in software as an
alternative to HKDF-SHA512.  There is no security problem with such
features, so fix the key length check to work properly with them.

Reviewed-by: Paul Crowley <paulcrowley@google.com>
Link: https://lore.kernel.org/r/20210921030303.5598-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/filesystems/fscrypt.rst | 10 ++---
 fs/crypto/fscrypt_private.h           |  5 ++-
 fs/crypto/hkdf.c                      | 11 ++++--
 fs/crypto/keysetup.c                  | 57 +++++++++++++++++++++------
 4 files changed, 61 insertions(+), 22 deletions(-)

diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 44b67ebd6e40d..936fae06db770 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -176,11 +176,11 @@ Master Keys
 
 Each encrypted directory tree is protected by a *master key*.  Master
 keys can be up to 64 bytes long, and must be at least as long as the
-greater of the key length needed by the contents and filenames
-encryption modes being used.  For example, if AES-256-XTS is used for
-contents encryption, the master key must be 64 bytes (512 bits).  Note
-that the XTS mode is defined to require a key twice as long as that
-required by the underlying block cipher.
+greater of the security strength of the contents and filenames
+encryption modes being used.  For example, if any AES-256 mode is
+used, the master key must be at least 256 bits, i.e. 32 bytes.  A
+stricter requirement applies if the key is used by a v1 encryption
+policy and AES-256-XTS is used; such keys must be 64 bytes.
 
 To "unlock" an encrypted directory tree, userspace must provide the
 appropriate master key.  There can be any number of master keys, each
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 322ecae9a7580..052ad40ecdb28 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -557,8 +557,9 @@ int __init fscrypt_init_keyring(void);
 struct fscrypt_mode {
 	const char *friendly_name;
 	const char *cipher_str;
-	int keysize;
-	int ivsize;
+	int keysize;		/* key size in bytes */
+	int security_strength;	/* security strength in bytes */
+	int ivsize;		/* IV size in bytes */
 	int logged_impl_name;
 	enum blk_crypto_mode_num blk_crypto_mode;
 };
diff --git a/fs/crypto/hkdf.c b/fs/crypto/hkdf.c
index 0cba7928446d3..24172bf3e8c6f 100644
--- a/fs/crypto/hkdf.c
+++ b/fs/crypto/hkdf.c
@@ -16,9 +16,14 @@
 
 /*
  * HKDF supports any unkeyed cryptographic hash algorithm, but fscrypt uses
- * SHA-512 because it is reasonably secure and efficient; and since it produces
- * a 64-byte digest, deriving an AES-256-XTS key preserves all 64 bytes of
- * entropy from the master key and requires only one iteration of HKDF-Expand.
+ * SHA-512 because it is well-established, secure, and reasonably efficient.
+ *
+ * HKDF-SHA256 was also considered, as its 256-bit security strength would be
+ * sufficient here.  A 512-bit security strength is "nice to have", though.
+ * Also, on 64-bit CPUs, SHA-512 is usually just as fast as SHA-256.  In the
+ * common case of deriving an AES-256-XTS key (512 bits), that can result in
+ * HKDF-SHA512 being much faster than HKDF-SHA256, as the longer digest size of
+ * SHA-512 causes HKDF-Expand to only need to do one iteration rather than two.
  */
 #define HKDF_HMAC_ALG		"hmac(sha512)"
 #define HKDF_HASHLEN		SHA512_DIGEST_SIZE
diff --git a/fs/crypto/keysetup.c b/fs/crypto/keysetup.c
index 9a6f9a188efb9..73d96e35d9ae4 100644
--- a/fs/crypto/keysetup.c
+++ b/fs/crypto/keysetup.c
@@ -19,6 +19,7 @@ struct fscrypt_mode fscrypt_modes[] = {
 		.friendly_name = "AES-256-XTS",
 		.cipher_str = "xts(aes)",
 		.keysize = 64,
+		.security_strength = 32,
 		.ivsize = 16,
 		.blk_crypto_mode = BLK_ENCRYPTION_MODE_AES_256_XTS,
 	},
@@ -26,12 +27,14 @@ struct fscrypt_mode fscrypt_modes[] = {
 		.friendly_name = "AES-256-CTS-CBC",
 		.cipher_str = "cts(cbc(aes))",
 		.keysize = 32,
+		.security_strength = 32,
 		.ivsize = 16,
 	},
 	[FSCRYPT_MODE_AES_128_CBC] = {
 		.friendly_name = "AES-128-CBC-ESSIV",
 		.cipher_str = "essiv(cbc(aes),sha256)",
 		.keysize = 16,
+		.security_strength = 16,
 		.ivsize = 16,
 		.blk_crypto_mode = BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV,
 	},
@@ -39,12 +42,14 @@ struct fscrypt_mode fscrypt_modes[] = {
 		.friendly_name = "AES-128-CTS-CBC",
 		.cipher_str = "cts(cbc(aes))",
 		.keysize = 16,
+		.security_strength = 16,
 		.ivsize = 16,
 	},
 	[FSCRYPT_MODE_ADIANTUM] = {
 		.friendly_name = "Adiantum",
 		.cipher_str = "adiantum(xchacha12,aes)",
 		.keysize = 32,
+		.security_strength = 32,
 		.ivsize = 32,
 		.blk_crypto_mode = BLK_ENCRYPTION_MODE_ADIANTUM,
 	},
@@ -357,6 +362,45 @@ static int fscrypt_setup_v2_file_key(struct fscrypt_info *ci,
 	return 0;
 }
 
+/*
+ * Check whether the size of the given master key (@mk) is appropriate for the
+ * encryption settings which a particular file will use (@ci).
+ *
+ * If the file uses a v1 encryption policy, then the master key must be at least
+ * as long as the derived key, as this is a requirement of the v1 KDF.
+ *
+ * Otherwise, the KDF can accept any size key, so we enforce a slightly looser
+ * requirement: we require that the size of the master key be at least the
+ * maximum security strength of any algorithm whose key will be derived from it
+ * (but in practice we only need to consider @ci->ci_mode, since any other
+ * possible subkeys such as DIRHASH and INODE_HASH will never increase the
+ * required key size over @ci->ci_mode).  This allows AES-256-XTS keys to be
+ * derived from a 256-bit master key, which is cryptographically sufficient,
+ * rather than requiring a 512-bit master key which is unnecessarily long.  (We
+ * still allow 512-bit master keys if the user chooses to use them, though.)
+ */
+static bool fscrypt_valid_master_key_size(const struct fscrypt_master_key *mk,
+					  const struct fscrypt_info *ci)
+{
+	unsigned int min_keysize;
+
+	if (ci->ci_policy.version == FSCRYPT_POLICY_V1)
+		min_keysize = ci->ci_mode->keysize;
+	else
+		min_keysize = ci->ci_mode->security_strength;
+
+	if (mk->mk_secret.size < min_keysize) {
+		fscrypt_warn(NULL,
+			     "key with %s %*phN is too short (got %u bytes, need %u+ bytes)",
+			     master_key_spec_type(&mk->mk_spec),
+			     master_key_spec_len(&mk->mk_spec),
+			     (u8 *)&mk->mk_spec.u,
+			     mk->mk_secret.size, min_keysize);
+		return false;
+	}
+	return true;
+}
+
 /*
  * Find the master key, then set up the inode's actual encryption key.
  *
@@ -422,18 +466,7 @@ static int setup_file_encryption_key(struct fscrypt_info *ci,
 		goto out_release_key;
 	}
 
-	/*
-	 * Require that the master key be at least as long as the derived key.
-	 * Otherwise, the derived key cannot possibly contain as much entropy as
-	 * that required by the encryption mode it will be used for.  For v1
-	 * policies it's also required for the KDF to work at all.
-	 */
-	if (mk->mk_secret.size < ci->ci_mode->keysize) {
-		fscrypt_warn(NULL,
-			     "key with %s %*phN is too short (got %u bytes, need %u+ bytes)",
-			     master_key_spec_type(&mk_spec),
-			     master_key_spec_len(&mk_spec), (u8 *)&mk_spec.u,
-			     mk->mk_secret.size, ci->ci_mode->keysize);
+	if (!fscrypt_valid_master_key_size(mk, ci)) {
 		err = -ENOKEY;
 		goto out_release_key;
 	}
-- 
GitLab


From 2114f80889d89f96e65e0f8a74bd0ecf10b658f5 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Date: Thu, 16 Sep 2021 12:54:07 -0400
Subject: [PATCH 1110/4878] drm/amdgpu: Fix MMIO access page fault

[ Upstream commit c03509cbc01559549700e14c4a6239f2572ab4ba ]

Add more guards to MMIO access post device
unbind/unplug

Bug: https://bugs.archlinux.org/task/72092?project=1&order=dateopened&sort=desc&pagenum=1
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c |  8 ++++++--
 drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c | 17 +++++++++++------
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index f493b5c3d382b..79bcc78f77045 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -22,6 +22,7 @@
  */
 
 #include <linux/firmware.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_vcn.h"
@@ -192,11 +193,14 @@ static int vcn_v2_0_sw_init(void *handle)
  */
 static int vcn_v2_0_sw_fini(void *handle)
 {
-	int r;
+	int r, idx;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	volatile struct amdgpu_fw_shared *fw_shared = adev->vcn.inst->fw_shared_cpu_addr;
 
-	fw_shared->present_flag_0 = 0;
+	if (drm_dev_enter(&adev->ddev, &idx)) {
+		fw_shared->present_flag_0 = 0;
+		drm_dev_exit(idx);
+	}
 
 	amdgpu_virt_free_mm_table(adev);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
index ce64d4016f903..381839d005db9 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
@@ -22,6 +22,7 @@
  */
 
 #include <linux/firmware.h>
+#include <drm/drm_drv.h>
 
 #include "amdgpu.h"
 #include "amdgpu_vcn.h"
@@ -233,17 +234,21 @@ static int vcn_v2_5_sw_init(void *handle)
  */
 static int vcn_v2_5_sw_fini(void *handle)
 {
-	int i, r;
+	int i, r, idx;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	volatile struct amdgpu_fw_shared *fw_shared;
 
-	for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
-		if (adev->vcn.harvest_config & (1 << i))
-			continue;
-		fw_shared = adev->vcn.inst[i].fw_shared_cpu_addr;
-		fw_shared->present_flag_0 = 0;
+	if (drm_dev_enter(&adev->ddev, &idx)) {
+		for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
+			if (adev->vcn.harvest_config & (1 << i))
+				continue;
+			fw_shared = adev->vcn.inst[i].fw_shared_cpu_addr;
+			fw_shared->present_flag_0 = 0;
+		}
+		drm_dev_exit(idx);
 	}
 
+
 	if (amdgpu_sriov_vf(adev))
 		amdgpu_virt_free_mm_table(adev);
 
-- 
GitLab


From 97890f36333dd3932c7704ceeb7c13289c184537 Mon Sep 17 00:00:00 2001
From: Sriram R <srirrama@codeaurora.org>
Date: Tue, 28 Sep 2021 12:05:40 +0300
Subject: [PATCH 1111/4878] ath11k: Avoid reg rules update during firmware
 recovery

[ Upstream commit 69a0fcf8a9f2273040d03e5ee77c9689c09e9d3a ]

During firmware recovery, the default reg rules which are
received via WMI_REG_CHAN_LIST_CC_EVENT can overwrite
the currently configured user regd.

See below snap for example,

root@OpenWrt:/# iw reg get | grep country
country FR: DFS-ETSI
country FR: DFS-ETSI
country FR: DFS-ETSI
country FR: DFS-ETSI

root@OpenWrt:/# echo assert > /sys/kernel/debug/ath11k/ipq8074\ hw2.0/simulate_f
w_crash
<snip>
[ 5290.471696] ath11k c000000.wifi1: pdev 1 successfully recovered

root@OpenWrt:/# iw reg get | grep country
country FR: DFS-ETSI
country US: DFS-FCC
country US: DFS-FCC
country US: DFS-FCC

In the above, the user configured country 'FR' is overwritten
when the rules of default country 'US' are received and updated during
recovery. Hence avoid processing of these rules in general
during firmware recovery as they have been already applied during
driver registration or after last set user country is configured.

This scenario applies for both AP and STA devices basically because
cfg80211 is not aware of the recovery and only the driver recovers, but
changing or resetting of the reg domain during recovery is not needed so
as to continue with the configured regdomain currently in use.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01460-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-3-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index fca71e00123d9..2f777d61f9065 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5362,6 +5362,17 @@ static int ath11k_reg_chan_list_event(struct ath11k_base *ab, struct sk_buff *sk
 
 	pdev_idx = reg_info->phy_id;
 
+	/* Avoid default reg rule updates sent during FW recovery if
+	 * it is already available
+	 */
+	spin_lock(&ab->base_lock);
+	if (test_bit(ATH11K_FLAG_RECOVERY, &ab->dev_flags) &&
+	    ab->default_regd[pdev_idx]) {
+		spin_unlock(&ab->base_lock);
+		goto mem_free;
+	}
+	spin_unlock(&ab->base_lock);
+
 	if (pdev_idx >= ab->num_radios) {
 		/* Process the event for phy0 only if single_pdev_only
 		 * is true. If pdev_idx is valid but not 0, discard the
-- 
GitLab


From 43ab6457883670e0080938e2bb0544f58880f063 Mon Sep 17 00:00:00 2001
From: Wen Gong <wgong@codeaurora.org>
Date: Tue, 28 Sep 2021 14:00:45 +0300
Subject: [PATCH 1112/4878] ath11k: add handler for scan event
 WMI_SCAN_EVENT_DEQUEUED

[ Upstream commit 441b3b5911f8ead7f2fe2336587b340a33044d58 ]

When wlan interface is up, 11d scan is sent to the firmware, and the
firmware needs to spend couple of seconds to complete the 11d scan. If
immediately a normal scan from user space arrives to ath11k, then the
normal scan request is also sent to the firmware, but the scan started
event will be reported to ath11k until the 11d scan complete. When timed
out for the scan started in ath11k, ath11k stops the normal scan and the
firmware reports WMI_SCAN_EVENT_DEQUEUED to ath11k for the normal scan.
ath11k has no handler for the event and then timed out for the scan
completed in ath11k_scan_stop(), and ath11k prints the following error
message.

[ 1491.604750] ath11k_pci 0000:02:00.0: failed to receive scan abort comple: timed out
[ 1491.604756] ath11k_pci 0000:02:00.0: failed to stop scan: -110
[ 1491.604758] ath11k_pci 0000:02:00.0: failed to start hw scan: -110

Add a handler for WMI_SCAN_EVENT_DEQUEUED and then complete the scan to
get rid of the above error message.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914164226.38843-1-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 2f777d61f9065..cf0f778b0cbc9 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5856,6 +5856,8 @@ static void ath11k_scan_event(struct ath11k_base *ab, struct sk_buff *skb)
 		ath11k_wmi_event_scan_start_failed(ar);
 		break;
 	case WMI_SCAN_EVENT_DEQUEUED:
+		__ath11k_mac_scan_finish(ar);
+		break;
 	case WMI_SCAN_EVENT_PREEMPTED:
 	case WMI_SCAN_EVENT_RESTARTED:
 	case WMI_SCAN_EVENT_FOREIGN_CHAN_EXIT:
-- 
GitLab


From 461a71a1a62aeb1c92fd5c52d4a93bb5a280cf24 Mon Sep 17 00:00:00 2001
From: Baochen Qiang <bqiang@codeaurora.org>
Date: Tue, 28 Sep 2021 14:00:46 +0300
Subject: [PATCH 1113/4878] ath11k: Change DMA_FROM_DEVICE to DMA_TO_DEVICE
 when map reinjected packets

[ Upstream commit 86a03dad0f5ad8182ed5fcf7bf3eec71cd96577c ]

For fragmented packets, ath11k reassembles each fragment as a normal
packet and then reinjects it into HW ring. In this case, the DMA
direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE, otherwise
invalid payload will be reinjected to HW and then delivered to host.
What is more, since arbitrary memory could be allocated to the frame, we
don't know what kind of data is contained in the buffer reinjected.
Thus, as a bad result, private info may be leaked.

Note that this issue is only found on Intel platform.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210916064617.20006-1-bqiang@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/dp_rx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 2bff8eb507d4d..7d6fd8155bb22 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -3273,7 +3273,7 @@ static int ath11k_dp_rx_h_defrag_reo_reinject(struct ath11k *ar, struct dp_rx_ti
 
 	paddr = dma_map_single(ab->dev, defrag_skb->data,
 			       defrag_skb->len + skb_tailroom(defrag_skb),
-			       DMA_FROM_DEVICE);
+			       DMA_TO_DEVICE);
 	if (dma_mapping_error(ab->dev, paddr))
 		return -ENOMEM;
 
@@ -3338,7 +3338,7 @@ err_free_idr:
 	spin_unlock_bh(&rx_refill_ring->idr_lock);
 err_unmap_dma:
 	dma_unmap_single(ab->dev, paddr, defrag_skb->len + skb_tailroom(defrag_skb),
-			 DMA_FROM_DEVICE);
+			 DMA_TO_DEVICE);
 	return ret;
 }
 
-- 
GitLab


From aded39ff1f7a496b3c343f9e0e4130375ff05bdb Mon Sep 17 00:00:00 2001
From: Alagu Sankar <alagusankar@silex-india.com>
Date: Tue, 28 Sep 2021 14:00:47 +0300
Subject: [PATCH 1114/4878] ath10k: high latency fixes for beacon buffer

[ Upstream commit e263bdab9c0e8025fb7f41f153709a9cda51f6b6 ]

Beacon buffer for high latency devices does not use DMA. other similar
buffer allocation methods in the driver have already been modified for
high latency path. Fix the beacon buffer allocation left out in the
earlier high latency changes.

Signed-off-by: Alagu Sankar <alagusankar@silex-india.com>
Signed-off-by: Erik Stromdahl <erik.stromdahl@gmail.com>
[fabio: adapt it to use ar->bus_param.dev_type ]
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210818232627.2040121-1-festevam@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 31 ++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 36183fdfb7f03..90dc48f66fbfe 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -982,8 +982,12 @@ static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
 	ath10k_mac_vif_beacon_free(arvif);
 
 	if (arvif->beacon_buf) {
-		dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
-				  arvif->beacon_buf, arvif->beacon_paddr);
+		if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
+			kfree(arvif->beacon_buf);
+		else
+			dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
+					  arvif->beacon_buf,
+					  arvif->beacon_paddr);
 		arvif->beacon_buf = NULL;
 	}
 }
@@ -5466,10 +5470,17 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	if (vif->type == NL80211_IFTYPE_ADHOC ||
 	    vif->type == NL80211_IFTYPE_MESH_POINT ||
 	    vif->type == NL80211_IFTYPE_AP) {
-		arvif->beacon_buf = dma_alloc_coherent(ar->dev,
-						       IEEE80211_MAX_FRAME_LEN,
-						       &arvif->beacon_paddr,
-						       GFP_ATOMIC);
+		if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
+			arvif->beacon_buf = kmalloc(IEEE80211_MAX_FRAME_LEN,
+						    GFP_KERNEL);
+			arvif->beacon_paddr = (dma_addr_t)arvif->beacon_buf;
+		} else {
+			arvif->beacon_buf =
+				dma_alloc_coherent(ar->dev,
+						   IEEE80211_MAX_FRAME_LEN,
+						   &arvif->beacon_paddr,
+						   GFP_ATOMIC);
+		}
 		if (!arvif->beacon_buf) {
 			ret = -ENOMEM;
 			ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
@@ -5684,8 +5695,12 @@ err_vdev_delete:
 
 err:
 	if (arvif->beacon_buf) {
-		dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
-				  arvif->beacon_buf, arvif->beacon_paddr);
+		if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
+			kfree(arvif->beacon_buf);
+		else
+			dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
+					  arvif->beacon_buf,
+					  arvif->beacon_paddr);
 		arvif->beacon_buf = NULL;
 	}
 
-- 
GitLab


From 09ee09359af9cf42b0ebc640adca63008cb8dffa Mon Sep 17 00:00:00 2001
From: Dirk Bender <d.bender@phytec.de>
Date: Mon, 26 Jul 2021 09:35:15 +0200
Subject: [PATCH 1115/4878] media: mt9p031: Fix corrupted frame after
 restarting stream

[ Upstream commit 0961ba6dd211a4a52d1dd4c2d59be60ac2dc08c7 ]

To prevent corrupted frames after starting and stopping the sensor its
datasheet specifies a specific pause sequence to follow:

Stopping:
	Set Pause_Restart Bit -> Set Restart Bit -> Set Chip_Enable Off

Restarting:
	Set Chip_Enable On -> Clear Pause_Restart Bit

The Restart Bit is cleared automatically and must not be cleared
manually as this would cause undefined behavior.

Signed-off-by: Dirk Bender <d.bender@phytec.de>
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/mt9p031.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
index dc23b9ed510a4..18440c5104ad9 100644
--- a/drivers/media/i2c/mt9p031.c
+++ b/drivers/media/i2c/mt9p031.c
@@ -78,7 +78,9 @@
 #define		MT9P031_PIXEL_CLOCK_INVERT		(1 << 15)
 #define		MT9P031_PIXEL_CLOCK_SHIFT(n)		((n) << 8)
 #define		MT9P031_PIXEL_CLOCK_DIVIDE(n)		((n) << 0)
-#define MT9P031_FRAME_RESTART				0x0b
+#define MT9P031_RESTART					0x0b
+#define		MT9P031_FRAME_PAUSE_RESTART		(1 << 1)
+#define		MT9P031_FRAME_RESTART			(1 << 0)
 #define MT9P031_SHUTTER_DELAY				0x0c
 #define MT9P031_RST					0x0d
 #define		MT9P031_RST_ENABLE			1
@@ -445,9 +447,23 @@ static int mt9p031_set_params(struct mt9p031 *mt9p031)
 static int mt9p031_s_stream(struct v4l2_subdev *subdev, int enable)
 {
 	struct mt9p031 *mt9p031 = to_mt9p031(subdev);
+	struct i2c_client *client = v4l2_get_subdevdata(subdev);
+	int val;
 	int ret;
 
 	if (!enable) {
+		/* enable pause restart */
+		val = MT9P031_FRAME_PAUSE_RESTART;
+		ret = mt9p031_write(client, MT9P031_RESTART, val);
+		if (ret < 0)
+			return ret;
+
+		/* enable restart + keep pause restart set */
+		val |= MT9P031_FRAME_RESTART;
+		ret = mt9p031_write(client, MT9P031_RESTART, val);
+		if (ret < 0)
+			return ret;
+
 		/* Stop sensor readout */
 		ret = mt9p031_set_output_control(mt9p031,
 						 MT9P031_OUTPUT_CONTROL_CEN, 0);
@@ -467,6 +483,16 @@ static int mt9p031_s_stream(struct v4l2_subdev *subdev, int enable)
 	if (ret < 0)
 		return ret;
 
+	/*
+	 * - clear pause restart
+	 * - don't clear restart as clearing restart manually can cause
+	 *   undefined behavior
+	 */
+	val = MT9P031_FRAME_RESTART;
+	ret = mt9p031_write(client, MT9P031_RESTART, val);
+	if (ret < 0)
+		return ret;
+
 	return mt9p031_pll_enable(mt9p031);
 }
 
-- 
GitLab


From f4c652bd3506e9a5feb9e32f50a0b4cf5e3860f7 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Wed, 23 Jun 2021 08:01:05 +0200
Subject: [PATCH 1116/4878] media: netup_unidvb: handle interrupt properly
 according to the firmware

[ Upstream commit dbb4cfea6efe979ed153bd59a6a527a90d3d0ab3 ]

The interrupt handling should be related to the firmware version. If
the driver matches an old firmware, then the driver should not handle
interrupt such as i2c or dma, otherwise it will cause some errors.

This log reveals it:

[   27.708641] INFO: trying to register non-static key.
[   27.710851] The code is fine but needs lockdep annotation, or maybe
[   27.712010] you didn't initialize this object before use?
[   27.712396] turning off the locking correctness validator.
[   27.712787] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.12.4-g70e7f0549188-dirty #169
[   27.713349] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[   27.714149] Call Trace:
[   27.714329]  <IRQ>
[   27.714480]  dump_stack+0xba/0xf5
[   27.714737]  register_lock_class+0x873/0x8f0
[   27.715052]  ? __lock_acquire+0x323/0x1930
[   27.715353]  __lock_acquire+0x75/0x1930
[   27.715636]  lock_acquire+0x1dd/0x3e0
[   27.715905]  ? netup_i2c_interrupt+0x19/0x310
[   27.716226]  _raw_spin_lock_irqsave+0x4b/0x60
[   27.716544]  ? netup_i2c_interrupt+0x19/0x310
[   27.716863]  netup_i2c_interrupt+0x19/0x310
[   27.717178]  netup_unidvb_isr+0xd3/0x160
[   27.717467]  __handle_irq_event_percpu+0x53/0x3e0
[   27.717808]  handle_irq_event_percpu+0x35/0x90
[   27.718129]  handle_irq_event+0x39/0x60
[   27.718409]  handle_fasteoi_irq+0xc2/0x1d0
[   27.718707]  __common_interrupt+0x7f/0x150
[   27.719008]  common_interrupt+0xb4/0xd0
[   27.719289]  </IRQ>
[   27.719446]  asm_common_interrupt+0x1e/0x40
[   27.719747] RIP: 0010:native_safe_halt+0x17/0x20
[   27.720084] Code: 07 0f 00 2d 8b ee 4c 00 f4 5d c3 0f 1f 84 00 00 00 00 00 8b 05 72 95 17 02 55 48 89 e5 85 c0 7e 07 0f 00 2d 6b ee 4c 00 fb f4 <5d> c3 cc cc cc cc cc cc cc 55 48 89 e5 e8 67 53 ff ff 8b 0d 29 f6
[   27.721386] RSP: 0018:ffffc9000008fe90 EFLAGS: 00000246
[   27.721758] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
[   27.722262] RDX: 0000000000000000 RSI: ffffffff85f7c054 RDI: ffffffff85ded4e6
[   27.722770] RBP: ffffc9000008fe90 R08: 0000000000000001 R09: 0000000000000001
[   27.723277] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff86a75408
[   27.723781] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888100260000
[   27.724289]  default_idle+0x9/0x10
[   27.724537]  arch_cpu_idle+0xa/0x10
[   27.724791]  default_idle_call+0x6e/0x250
[   27.725082]  do_idle+0x1f0/0x2d0
[   27.725326]  cpu_startup_entry+0x18/0x20
[   27.725613]  start_secondary+0x11f/0x160
[   27.725902]  secondary_startup_64_no_verify+0xb0/0xbb
[   27.726272] BUG: kernel NULL pointer dereference, address: 0000000000000002
[   27.726768] #PF: supervisor read access in kernel mode
[   27.727138] #PF: error_code(0x0000) - not-present page
[   27.727507] PGD 8000000118688067 P4D 8000000118688067 PUD 10feab067 PMD 0
[   27.727999] Oops: 0000 [#1] PREEMPT SMP PTI
[   27.728302] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.12.4-g70e7f0549188-dirty #169
[   27.728861] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[   27.729660] RIP: 0010:netup_i2c_interrupt+0x23/0x310
[   27.730019] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 41 55 41 54 53 48 89 fb e8 af 6e 95 fd 48 89 df e8 e7 9f 1c 01 49 89 c5 48 8b 83 48 08 00 00 <66> 44 8b 60 02 44 89 e0 48 8b 93 48 08 00 00 83 e0 f8 66 89 42 02
[   27.731339] RSP: 0018:ffffc90000118e90 EFLAGS: 00010046
[   27.731716] RAX: 0000000000000000 RBX: ffff88810803c4d8 RCX: 0000000000000000
[   27.732223] RDX: 0000000000000001 RSI: ffffffff85d37b94 RDI: ffff88810803c4d8
[   27.732727] RBP: ffffc90000118ea8 R08: 0000000000000000 R09: 0000000000000001
[   27.733239] R10: ffff88810803c4f0 R11: 61646e6f63657320 R12: 0000000000000000
[   27.733745] R13: 0000000000000046 R14: ffff888101041000 R15: ffff8881081b2400
[   27.734251] FS:  0000000000000000(0000) GS:ffff88817bc80000(0000) knlGS:0000000000000000
[   27.734821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.735228] CR2: 0000000000000002 CR3: 0000000108194000 CR4: 00000000000006e0
[   27.735735] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.736241] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.736744] Call Trace:
[   27.736924]  <IRQ>
[   27.737074]  netup_unidvb_isr+0xd3/0x160
[   27.737363]  __handle_irq_event_percpu+0x53/0x3e0
[   27.737706]  handle_irq_event_percpu+0x35/0x90
[   27.738028]  handle_irq_event+0x39/0x60
[   27.738306]  handle_fasteoi_irq+0xc2/0x1d0
[   27.738602]  __common_interrupt+0x7f/0x150
[   27.738899]  common_interrupt+0xb4/0xd0
[   27.739176]  </IRQ>
[   27.739331]  asm_common_interrupt+0x1e/0x40
[   27.739633] RIP: 0010:native_safe_halt+0x17/0x20
[   27.739967] Code: 07 0f 00 2d 8b ee 4c 00 f4 5d c3 0f 1f 84 00 00 00 00 00 8b 05 72 95 17 02 55 48 89 e5 85 c0 7e 07 0f 00 2d 6b ee 4c 00 fb f4 <5d> c3 cc cc cc cc cc cc cc 55 48 89 e5 e8 67 53 ff ff 8b 0d 29 f6
[   27.741275] RSP: 0018:ffffc9000008fe90 EFLAGS: 00000246
[   27.741647] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
[   27.742148] RDX: 0000000000000000 RSI: ffffffff85f7c054 RDI: ffffffff85ded4e6
[   27.742652] RBP: ffffc9000008fe90 R08: 0000000000000001 R09: 0000000000000001
[   27.743154] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff86a75408
[   27.743652] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888100260000
[   27.744157]  default_idle+0x9/0x10
[   27.744405]  arch_cpu_idle+0xa/0x10
[   27.744658]  default_idle_call+0x6e/0x250
[   27.744948]  do_idle+0x1f0/0x2d0
[   27.745190]  cpu_startup_entry+0x18/0x20
[   27.745475]  start_secondary+0x11f/0x160
[   27.745761]  secondary_startup_64_no_verify+0xb0/0xbb
[   27.746123] Modules linked in:
[   27.746348] Dumping ftrace buffer:
[   27.746596]    (ftrace buffer empty)
[   27.746852] CR2: 0000000000000002
[   27.747094] ---[ end trace ebafd46f83ab946d ]---
[   27.747424] RIP: 0010:netup_i2c_interrupt+0x23/0x310
[   27.747778] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 41 55 41 54 53 48 89 fb e8 af 6e 95 fd 48 89 df e8 e7 9f 1c 01 49 89 c5 48 8b 83 48 08 00 00 <66> 44 8b 60 02 44 89 e0 48 8b 93 48 08 00 00 83 e0 f8 66 89 42 02
[   27.749082] RSP: 0018:ffffc90000118e90 EFLAGS: 00010046
[   27.749461] RAX: 0000000000000000 RBX: ffff88810803c4d8 RCX: 0000000000000000
[   27.749966] RDX: 0000000000000001 RSI: ffffffff85d37b94 RDI: ffff88810803c4d8
[   27.750471] RBP: ffffc90000118ea8 R08: 0000000000000000 R09: 0000000000000001
[   27.750976] R10: ffff88810803c4f0 R11: 61646e6f63657320 R12: 0000000000000000
[   27.751480] R13: 0000000000000046 R14: ffff888101041000 R15: ffff8881081b2400
[   27.751986] FS:  0000000000000000(0000) GS:ffff88817bc80000(0000) knlGS:0000000000000000
[   27.752560] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.752970] CR2: 0000000000000002 CR3: 0000000108194000 CR4: 00000000000006e0
[   27.753481] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   27.753984] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   27.754487] Kernel panic - not syncing: Fatal exception in interrupt
[   27.755033] Dumping ftrace buffer:
[   27.755279]    (ftrace buffer empty)
[   27.755534] Kernel Offset: disabled
[   27.755785] Rebooting in 1 seconds..

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../pci/netup_unidvb/netup_unidvb_core.c      | 27 +++++++++++--------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
index 6f3125c2d0976..77bae14685513 100644
--- a/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
+++ b/drivers/media/pci/netup_unidvb/netup_unidvb_core.c
@@ -258,19 +258,24 @@ static irqreturn_t netup_unidvb_isr(int irq, void *dev_id)
 	if ((reg40 & AVL_IRQ_ASSERTED) != 0) {
 		/* IRQ is being signaled */
 		reg_isr = readw(ndev->bmmio0 + REG_ISR);
-		if (reg_isr & NETUP_UNIDVB_IRQ_I2C0) {
-			iret = netup_i2c_interrupt(&ndev->i2c[0]);
-		} else if (reg_isr & NETUP_UNIDVB_IRQ_I2C1) {
-			iret = netup_i2c_interrupt(&ndev->i2c[1]);
-		} else if (reg_isr & NETUP_UNIDVB_IRQ_SPI) {
+		if (reg_isr & NETUP_UNIDVB_IRQ_SPI)
 			iret = netup_spi_interrupt(ndev->spi);
-		} else if (reg_isr & NETUP_UNIDVB_IRQ_DMA1) {
-			iret = netup_dma_interrupt(&ndev->dma[0]);
-		} else if (reg_isr & NETUP_UNIDVB_IRQ_DMA2) {
-			iret = netup_dma_interrupt(&ndev->dma[1]);
-		} else if (reg_isr & NETUP_UNIDVB_IRQ_CI) {
-			iret = netup_ci_interrupt(ndev);
+		else if (!ndev->old_fw) {
+			if (reg_isr & NETUP_UNIDVB_IRQ_I2C0) {
+				iret = netup_i2c_interrupt(&ndev->i2c[0]);
+			} else if (reg_isr & NETUP_UNIDVB_IRQ_I2C1) {
+				iret = netup_i2c_interrupt(&ndev->i2c[1]);
+			} else if (reg_isr & NETUP_UNIDVB_IRQ_DMA1) {
+				iret = netup_dma_interrupt(&ndev->dma[0]);
+			} else if (reg_isr & NETUP_UNIDVB_IRQ_DMA2) {
+				iret = netup_dma_interrupt(&ndev->dma[1]);
+			} else if (reg_isr & NETUP_UNIDVB_IRQ_CI) {
+				iret = netup_ci_interrupt(ndev);
+			} else {
+				goto err;
+			}
 		} else {
+err:
 			dev_err(&pci_dev->dev,
 				"%s(): unknown interrupt 0x%x\n",
 				__func__, reg_isr);
-- 
GitLab


From 309ea2248d0ac305e41379bb50329a1664085a3f Mon Sep 17 00:00:00 2001
From: Evgeny Novikov <novikov@ispras.ru>
Date: Tue, 10 Aug 2021 18:29:43 +0200
Subject: [PATCH 1117/4878] media: atomisp: Fix error handling in probe

[ Upstream commit e16f5e39acd6d10cc63ae39bc0a77188ed828f22 ]

There were several issues with handling errors in lm3554_probe():
- Probe did not set the error code when v4l2_ctrl_handler_init() failed.
- It intermixed gotos for handling errors of v4l2_ctrl_handler_init()
  and media_entity_pads_init().
- It did not set the error code for failures of v4l2_ctrl_new_custom().
- Probe did not free resources in case of failures of
  atomisp_register_i2c_module().

The patch fixes all these issues.

Found by Linux Driver Verification project (linuxtesting.org).

Link: https://lore.kernel.org/linux-media/20210810162943.19852-1-novikov@ispras.ru
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../media/atomisp/i2c/atomisp-lm3554.c        | 37 ++++++++++++-------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c b/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
index 0ab67b2aec671..8739f0874103e 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
@@ -836,7 +836,6 @@ static int lm3554_probe(struct i2c_client *client)
 	int err = 0;
 	struct lm3554 *flash;
 	unsigned int i;
-	int ret;
 
 	flash = kzalloc(sizeof(*flash), GFP_KERNEL);
 	if (!flash)
@@ -845,7 +844,7 @@ static int lm3554_probe(struct i2c_client *client)
 	flash->pdata = lm3554_platform_data_func(client);
 	if (IS_ERR(flash->pdata)) {
 		err = PTR_ERR(flash->pdata);
-		goto fail1;
+		goto free_flash;
 	}
 
 	v4l2_i2c_subdev_init(&flash->sd, client, &lm3554_ops);
@@ -853,12 +852,12 @@ static int lm3554_probe(struct i2c_client *client)
 	flash->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 	flash->mode = ATOMISP_FLASH_MODE_OFF;
 	flash->timeout = LM3554_MAX_TIMEOUT / LM3554_TIMEOUT_STEPSIZE - 1;
-	ret =
+	err =
 	    v4l2_ctrl_handler_init(&flash->ctrl_handler,
 				   ARRAY_SIZE(lm3554_controls));
-	if (ret) {
+	if (err) {
 		dev_err(&client->dev, "error initialize a ctrl_handler.\n");
-		goto fail3;
+		goto unregister_subdev;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(lm3554_controls); i++)
@@ -867,14 +866,15 @@ static int lm3554_probe(struct i2c_client *client)
 
 	if (flash->ctrl_handler.error) {
 		dev_err(&client->dev, "ctrl_handler error.\n");
-		goto fail3;
+		err = flash->ctrl_handler.error;
+		goto free_handler;
 	}
 
 	flash->sd.ctrl_handler = &flash->ctrl_handler;
 	err = media_entity_pads_init(&flash->sd.entity, 0, NULL);
 	if (err) {
 		dev_err(&client->dev, "error initialize a media entity.\n");
-		goto fail2;
+		goto free_handler;
 	}
 
 	flash->sd.entity.function = MEDIA_ENT_F_FLASH;
@@ -885,16 +885,27 @@ static int lm3554_probe(struct i2c_client *client)
 
 	err = lm3554_gpio_init(client);
 	if (err) {
-		dev_err(&client->dev, "gpio request/direction_output fail");
-		goto fail3;
+		dev_err(&client->dev, "gpio request/direction_output fail.\n");
+		goto cleanup_media;
+	}
+
+	err = atomisp_register_i2c_module(&flash->sd, NULL, LED_FLASH);
+	if (err) {
+		dev_err(&client->dev, "fail to register atomisp i2c module.\n");
+		goto uninit_gpio;
 	}
-	return atomisp_register_i2c_module(&flash->sd, NULL, LED_FLASH);
-fail3:
+
+	return 0;
+
+uninit_gpio:
+	lm3554_gpio_uninit(client);
+cleanup_media:
 	media_entity_cleanup(&flash->sd.entity);
+free_handler:
 	v4l2_ctrl_handler_free(&flash->ctrl_handler);
-fail2:
+unregister_subdev:
 	v4l2_device_unregister_subdev(&flash->sd);
-fail1:
+free_flash:
 	kfree(flash);
 
 	return err;
-- 
GitLab


From 0c91bb4fbde4729fe692575e82cce43c11063098 Mon Sep 17 00:00:00 2001
From: Dmitriy Ulitin <ulitin@ispras.ru>
Date: Thu, 27 May 2021 17:06:26 +0200
Subject: [PATCH 1118/4878] media: stm32: Potential NULL pointer dereference in
 dcmi_irq_thread()

[ Upstream commit 548fa43a58696450c15b8f5564e99589c5144664 ]

At the moment of enabling irq handling:

1922 ret = devm_request_threaded_irq(&pdev->dev, irq, dcmi_irq_callback,
1923			dcmi_irq_thread, IRQF_ONESHOT,
1924			dev_name(&pdev->dev), dcmi);

there is still uninitialized field sd_format of struct stm32_dcmi *dcmi.
If an interrupt occurs in the interval between the installation of the
interrupt handler and the initialization of this field, NULL pointer
dereference happens.

This field is dereferenced in the handler function without any check:

457 if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG &&
458	    dcmi->misr & IT_FRAME) {

The patch moves interrupt handler installation
after initialization of the sd_format field that happens in
dcmi_graph_notify_complete() via dcmi_set_default_fmt().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Dmitriy Ulitin <ulitin@ispras.ru>
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/stm32/stm32-dcmi.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index fd1c41cba52fc..233e4d3feacd9 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -135,6 +135,7 @@ struct stm32_dcmi {
 	int				sequence;
 	struct list_head		buffers;
 	struct dcmi_buf			*active;
+	int			irq;
 
 	struct v4l2_device		v4l2_dev;
 	struct video_device		*vdev;
@@ -1720,6 +1721,14 @@ static int dcmi_graph_notify_complete(struct v4l2_async_notifier *notifier)
 		return ret;
 	}
 
+	ret = devm_request_threaded_irq(dcmi->dev, dcmi->irq, dcmi_irq_callback,
+					dcmi_irq_thread, IRQF_ONESHOT,
+					dev_name(dcmi->dev), dcmi);
+	if (ret) {
+		dev_err(dcmi->dev, "Unable to request irq %d\n", dcmi->irq);
+		return ret;
+	}
+
 	return 0;
 }
 
@@ -1881,6 +1890,8 @@ static int dcmi_probe(struct platform_device *pdev)
 	if (irq <= 0)
 		return irq ? irq : -ENXIO;
 
+	dcmi->irq = irq;
+
 	dcmi->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!dcmi->res) {
 		dev_err(&pdev->dev, "Could not get resource\n");
@@ -1893,14 +1904,6 @@ static int dcmi_probe(struct platform_device *pdev)
 		return PTR_ERR(dcmi->regs);
 	}
 
-	ret = devm_request_threaded_irq(&pdev->dev, irq, dcmi_irq_callback,
-					dcmi_irq_thread, IRQF_ONESHOT,
-					dev_name(&pdev->dev), dcmi);
-	if (ret) {
-		dev_err(&pdev->dev, "Unable to request irq %d\n", irq);
-		return ret;
-	}
-
 	mclk = devm_clk_get(&pdev->dev, "mclk");
 	if (IS_ERR(mclk)) {
 		if (PTR_ERR(mclk) != -EPROBE_DEFER)
-- 
GitLab


From 2052c4cebce9e5f60c8a5b0e8fc4c2727d2a39ab Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 18 Jun 2021 14:29:08 +0200
Subject: [PATCH 1119/4878] media: uvcvideo: Set capability in s_param

[ Upstream commit 97a2777a96070afb7da5d587834086c0b586c8cc ]

Fixes v4l2-compliance:

Format ioctls (Input 0):
                warn: v4l2-test-formats.cpp(1339): S_PARM is supported but doesn't report V4L2_CAP_TIMEPERFRAME
                fail: v4l2-test-formats.cpp(1241): node->has_frmintervals && !cap->capability

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/uvc/uvc_v4l2.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 5f0e2fa69da5c..753b8a99e08fc 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -471,10 +471,13 @@ static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,
 	uvc_simplify_fraction(&timeperframe.numerator,
 		&timeperframe.denominator, 8, 333);
 
-	if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
+	if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 		parm->parm.capture.timeperframe = timeperframe;
-	else
+		parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
+	} else {
 		parm->parm.output.timeperframe = timeperframe;
+		parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
+	}
 
 	return 0;
 }
-- 
GitLab


From d9349416402d89fb179c02e86d40caf5d892835a Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 18 Jun 2021 14:29:09 +0200
Subject: [PATCH 1120/4878] media: uvcvideo: Return -EIO for control errors

[ Upstream commit ffccdde5f0e17d2f0d788a9d831a027187890eaa ]

The device is doing something unexpected with the control. Either because
the protocol is not properly implemented or there has been a HW error.

Fixes v4l2-compliance:

Control ioctls (Input 0):
                fail: v4l2-test-controls.cpp(448): s_ctrl returned an error (22)
        test VIDIOC_G/S_CTRL: FAIL
                fail: v4l2-test-controls.cpp(698): s_ext_ctrls returned an error (22)
        test VIDIOC_G/S/TRY_EXT_CTRLS: FAIL

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/uvc/uvc_video.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index 5878c78334862..b8477fa93b7d7 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -112,6 +112,11 @@ int uvc_query_ctrl(struct uvc_device *dev, u8 query, u8 unit,
 	case 5: /* Invalid unit */
 	case 6: /* Invalid control */
 	case 7: /* Invalid Request */
+		/*
+		 * The firmware has not properly implemented
+		 * the control or there has been a HW error.
+		 */
+		return -EIO;
 	case 8: /* Invalid value within range */
 		return -EINVAL;
 	default: /* reserved or unknown */
-- 
GitLab


From f4037b9b10621cfd0df79f2ef765fe15f16c7870 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 18 Jun 2021 14:29:13 +0200
Subject: [PATCH 1121/4878] media: uvcvideo: Set unique vdev name based in type

[ Upstream commit e3f60e7e1a2b451f538f9926763432249bcf39c4 ]

All the entities must have a unique name. We can have a descriptive and
unique name by appending the function and the entity->id.

This is even resilent to multi chain devices.

Fixes v4l2-compliance:
Media Controller ioctls:
                fail: v4l2-test-media.cpp(205): v2_entity_names_set.find(key) != v2_entity_names_set.end()
        test MEDIA_IOC_G_TOPOLOGY: FAIL
                fail: v4l2-test-media.cpp(394): num_data_links != num_links
	test MEDIA_IOC_ENUM_ENTITIES/LINKS: FAIL

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/uvc/uvc_driver.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 282f3d2388cc2..447b6a198926e 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2065,6 +2065,7 @@ int uvc_register_video_device(struct uvc_device *dev,
 			      const struct v4l2_file_operations *fops,
 			      const struct v4l2_ioctl_ops *ioctl_ops)
 {
+	const char *name;
 	int ret;
 
 	/* Initialize the video buffers queue. */
@@ -2093,16 +2094,20 @@ int uvc_register_video_device(struct uvc_device *dev,
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 	default:
 		vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
+		name = "Video Capture";
 		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
+		name = "Video Output";
 		break;
 	case V4L2_BUF_TYPE_META_CAPTURE:
 		vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
+		name = "Metadata";
 		break;
 	}
 
-	strscpy(vdev->name, dev->name, sizeof(vdev->name));
+	snprintf(vdev->name, sizeof(vdev->name), "%s %u", name,
+		 stream->header.bTerminalLink);
 
 	/*
 	 * Set the driver data before calling video_register_device, otherwise
-- 
GitLab


From b570e36a779c981267400a40895dff42de1346e5 Mon Sep 17 00:00:00 2001
From: Tuo Li <islituo@gmail.com>
Date: Thu, 5 Aug 2021 09:55:35 +0200
Subject: [PATCH 1122/4878] media: s5p-mfc: fix possible null-pointer
 dereference in s5p_mfc_probe()

[ Upstream commit 8515965e5e33f4feb56134348c95953f3eadfb26 ]

The variable pdev is assigned to dev->plat_dev, and dev->plat_dev is
checked in:
  if (!dev->plat_dev)

This indicates both dev->plat_dev and pdev can be NULL. If so, the
function dev_err() is called to print error information.
  dev_err(&pdev->dev, "No platform data specified\n");

However, &pdev->dev is an illegal address, and it is dereferenced in
dev_err().

To fix this possible null-pointer dereference, replace dev_err() with
mfc_err().

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index eba2b9f040df0..c763c0a03140c 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1283,7 +1283,7 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 	spin_lock_init(&dev->condlock);
 	dev->plat_dev = pdev;
 	if (!dev->plat_dev) {
-		dev_err(&pdev->dev, "No platform data specified\n");
+		mfc_err("No platform data specified\n");
 		return -ENODEV;
 	}
 
-- 
GitLab


From a62edd8390ecef22fb9e7c1647926799620a6b9a Mon Sep 17 00:00:00 2001
From: Nadezda Lutovinova <lutovinova@ispras.ru>
Date: Wed, 11 Aug 2021 15:32:28 +0200
Subject: [PATCH 1123/4878] media: s5p-mfc: Add checking to s5p_mfc_probe().

[ Upstream commit cdfaf4752e6915a4b455ad4400133e540e4dc965 ]

If of_device_get_match_data() return NULL,
then null pointer dereference occurs in  s5p_mfc_init_pm().
The patch adds checking if dev->variant is NULL.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index c763c0a03140c..f336a95432732 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1288,6 +1288,10 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 	}
 
 	dev->variant = of_device_get_match_data(&pdev->dev);
+	if (!dev->variant) {
+		dev_err(&pdev->dev, "Failed to get device MFC hardware variant information\n");
+		return -ENOENT;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
-- 
GitLab


From 40b8e7dee544c067ed63488de026f4d1fc025dea Mon Sep 17 00:00:00 2001
From: Martin Kepplinger <martin.kepplinger@puri.sm>
Date: Wed, 8 Sep 2021 10:47:46 +0200
Subject: [PATCH 1124/4878] media: imx: set a media_device bus_info string

[ Upstream commit 6d0d779b212c27293d9ccb4da092ff0ccb6efa39 ]

Some tools like v4l2-compliance let users select a media device based
on the bus_info string which can be quite convenient. Use a unique
string for that.

This also fixes the following v4l2-compliance warning:
warn: v4l2-test-media.cpp(52): empty bus_info

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/imx/imx-media-dev-common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/imx/imx-media-dev-common.c b/drivers/staging/media/imx/imx-media-dev-common.c
index 5fe4b22ab8473..7e0d769566bdd 100644
--- a/drivers/staging/media/imx/imx-media-dev-common.c
+++ b/drivers/staging/media/imx/imx-media-dev-common.c
@@ -363,6 +363,8 @@ struct imx_media_dev *imx_media_dev_init(struct device *dev,
 	imxmd->v4l2_dev.notify = imx_media_notify;
 	strscpy(imxmd->v4l2_dev.name, "imx-media",
 		sizeof(imxmd->v4l2_dev.name));
+	snprintf(imxmd->md.bus_info, sizeof(imxmd->md.bus_info),
+		 "platform:%s", dev_name(imxmd->md.dev));
 
 	media_device_init(&imxmd->md);
 
-- 
GitLab


From 2709971f9f60e49c805c7da4a0e85664f5532e58 Mon Sep 17 00:00:00 2001
From: Rajat Asthana <rajatasthana4@gmail.com>
Date: Wed, 18 Aug 2021 22:31:10 +0200
Subject: [PATCH 1125/4878] media: mceusb: return without resubmitting URB in
 case of -EPROTO error.

[ Upstream commit 476db72e521983ecb847e4013b263072bb1110fc ]

Syzkaller reported a warning called "rcu detected stall in dummy_timer".

The error seems to be an error in mceusb_dev_recv(). In the case of
-EPROTO error, the routine immediately resubmits the URB. Instead it
should return without resubmitting URB.

Reported-by: syzbot+4d3749e9612c2cfab956@syzkaller.appspotmail.com
Signed-off-by: Rajat Asthana <rajatasthana4@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/rc/mceusb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index 5642595a057ec..8870c4e6c5f44 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1386,6 +1386,7 @@ static void mceusb_dev_recv(struct urb *urb)
 	case -ECONNRESET:
 	case -ENOENT:
 	case -EILSEQ:
+	case -EPROTO:
 	case -ESHUTDOWN:
 		usb_unlink_urb(urb);
 		return;
-- 
GitLab


From d506a3d60df938d82fcaa875475bfad759941554 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 26 Sep 2021 10:12:24 -0700
Subject: [PATCH 1126/4878] ia64: don't do IA64_CMPXCHG_DEBUG without
 CONFIG_PRINTK

[ Upstream commit c15b5fc054c3d6c97e953617605235c5cb8ce979 ]

When CONFIG_PRINTK is not set, the CMPXCHG_BUGCHECK() macro calls
_printk(), but _printk() is a static inline function, not available
as an extern.
Since the purpose of the macro is to print the BUGCHECK info,
make this config option depend on PRINTK.

Fixes multiple occurrences of this build error:

../include/linux/printk.h:208:5: error: static declaration of '_printk' follows non-static declaration
  208 | int _printk(const char *s, ...)
      |     ^~~~~~~
In file included from ../arch/ia64/include/asm/cmpxchg.h:5,
../arch/ia64/include/uapi/asm/cmpxchg.h:146:28: note: previous declaration of '_printk' with type 'int(const char *, ...)'
  146 |                 extern int _printk(const char *fmt, ...);

Cc: linux-ia64@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/ia64/Kconfig.debug | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
index 40ca23bd228d6..2ce008e2d1644 100644
--- a/arch/ia64/Kconfig.debug
+++ b/arch/ia64/Kconfig.debug
@@ -39,7 +39,7 @@ config DISABLE_VHPT
 
 config IA64_DEBUG_CMPXCHG
 	bool "Turn on compare-and-exchange bug checking (slow!)"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && PRINTK
 	help
 	  Selecting this option turns on bug checking for the IA-64
 	  compare-and-exchange instructions.  This is slow!  Itaniums
-- 
GitLab


From 7d54f52d8fdb95eb4ca7c7c917186591edb56377 Mon Sep 17 00:00:00 2001
From: Zong-Zhe Yang <kevin_yang@realtek.com>
Date: Mon, 27 Sep 2021 19:18:30 +0800
Subject: [PATCH 1127/4878] rtw88: fix RX clock gate setting while fifo dump

[ Upstream commit c5a8e90730a322f236731fc347dd3afa5db5550e ]

When fw fifo dumps, RX clock gating should be disabled to avoid
something unexpected. However, the register operation ran into
a mistake. So, we fix it.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210927111830.5354-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/fw.c  | 7 +++----
 drivers/net/wireless/realtek/rtw88/reg.h | 1 +
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c
index 0452630bcfacc..40bcfabd2d214 100644
--- a/drivers/net/wireless/realtek/rtw88/fw.c
+++ b/drivers/net/wireless/realtek/rtw88/fw.c
@@ -1421,12 +1421,10 @@ static void rtw_fw_read_fifo_page(struct rtw_dev *rtwdev, u32 offset, u32 size,
 	u32 i;
 	u16 idx = 0;
 	u16 ctl;
-	u8 rcr;
 
-	rcr = rtw_read8(rtwdev, REG_RCR + 2);
 	ctl = rtw_read16(rtwdev, REG_PKTBUF_DBG_CTRL) & 0xf000;
 	/* disable rx clock gate */
-	rtw_write8(rtwdev, REG_RCR, rcr | BIT(3));
+	rtw_write32_set(rtwdev, REG_RCR, BIT_DISGCLK);
 
 	do {
 		rtw_write16(rtwdev, REG_PKTBUF_DBG_CTRL, start_pg | ctl);
@@ -1445,7 +1443,8 @@ static void rtw_fw_read_fifo_page(struct rtw_dev *rtwdev, u32 offset, u32 size,
 
 out:
 	rtw_write16(rtwdev, REG_PKTBUF_DBG_CTRL, ctl);
-	rtw_write8(rtwdev, REG_RCR + 2, rcr);
+	/* restore rx clock gate */
+	rtw_write32_clr(rtwdev, REG_RCR, BIT_DISGCLK);
 }
 
 static void rtw_fw_read_fifo(struct rtw_dev *rtwdev, enum rtw_fw_fifo_sel sel,
diff --git a/drivers/net/wireless/realtek/rtw88/reg.h b/drivers/net/wireless/realtek/rtw88/reg.h
index aca3dbdc2d5a5..9088bfb2a3157 100644
--- a/drivers/net/wireless/realtek/rtw88/reg.h
+++ b/drivers/net/wireless/realtek/rtw88/reg.h
@@ -400,6 +400,7 @@
 #define BIT_MFBEN		BIT(22)
 #define BIT_DISCHKPPDLLEN	BIT(21)
 #define BIT_PKTCTL_DLEN		BIT(20)
+#define BIT_DISGCLK		BIT(19)
 #define BIT_TIM_PARSER_EN	BIT(18)
 #define BIT_BC_MD_EN		BIT(17)
 #define BIT_UC_MD_EN		BIT(16)
-- 
GitLab


From 3d5575b3f536adfc2189e79a783a28a930730c81 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Tue, 28 Sep 2021 18:06:33 +0200
Subject: [PATCH 1128/4878] brcmfmac: Add DMI nvram filename quirk for
 Cyberbook T116 tablet

[ Upstream commit 49c3eb3036e6359c5c20fe76c611a2c0e0d4710e ]

The Cyberbook T116 tablet contains quite generic names in the sys_vendor
and product_name DMI strings, without this patch brcmfmac will try to load:
"brcmfmac43455-sdio.Default string-Default string.txt" as nvram file which
is way too generic.

The nvram file shipped on the factory Android image contains the exact
same settings as those used on the AcePC T8 mini PC, so point the new
DMI nvram filename quirk to the acepc-t8 nvram file.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210928160633.96928-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
index 6d5188b78f2de..0af452dca7664 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
@@ -75,6 +75,16 @@ static const struct dmi_system_id dmi_platform_data[] = {
 		},
 		.driver_data = (void *)&acepc_t8_data,
 	},
+	{
+		/* Cyberbook T116 rugged tablet */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "20170531"),
+		},
+		/* The factory image nvram file is identical to the ACEPC T8 one */
+		.driver_data = (void *)&acepc_t8_data,
+	},
 	{
 		/* Match for the GPDwin which unfortunately uses somewhat
 		 * generic dmi strings, which is why we test for 4 strings.
-- 
GitLab


From 1f38e5e803df5acf8438c2891d01410b333fc19b Mon Sep 17 00:00:00 2001
From: Nadezda Lutovinova <lutovinova@ispras.ru>
Date: Wed, 11 Aug 2021 19:18:16 +0200
Subject: [PATCH 1129/4878] media: rcar-csi2: Add checking to
 rcsi2_start_receiver()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit fc41665498332ad394b7db37f23e9394096ddc71 ]

If rcsi2_code_to_fmt() return NULL, then null pointer dereference occurs
in the next cycle. That should not be possible now but adding checking
protects from future bugs.
The patch adds checking if format is NULL.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/rcar-vin/rcar-csi2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index 79f229756805e..d2d87a204e918 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -544,6 +544,8 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv)
 
 	/* Code is validated in set_fmt. */
 	format = rcsi2_code_to_fmt(priv->mf.code);
+	if (!format)
+		return -EINVAL;
 
 	/*
 	 * Enable all supported CSI-2 channels with virtual channel and
-- 
GitLab


From 6e242c557ad5d827dacba8ad9b03e90ebeb78581 Mon Sep 17 00:00:00 2001
From: Corey Minyard <cminyard@mvista.com>
Date: Thu, 16 Sep 2021 11:36:20 -0500
Subject: [PATCH 1130/4878] ipmi: Disable some operations during a panic

[ Upstream commit b36eb5e7b75a756baa64909a176dd4269ee05a8b ]

Don't do kfree or other risky things when oops_in_progress is set.
It's easy enough to avoid doing them

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 10 +++++++---
 drivers/char/ipmi/ipmi_watchdog.c   | 17 ++++++++++++-----
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 8774a3b8ff959..abb865b1dff29 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -4802,7 +4802,9 @@ static atomic_t recv_msg_inuse_count = ATOMIC_INIT(0);
 static void free_smi_msg(struct ipmi_smi_msg *msg)
 {
 	atomic_dec(&smi_msg_inuse_count);
-	kfree(msg);
+	/* Try to keep as much stuff out of the panic path as possible. */
+	if (!oops_in_progress)
+		kfree(msg);
 }
 
 struct ipmi_smi_msg *ipmi_alloc_smi_msg(void)
@@ -4821,7 +4823,9 @@ EXPORT_SYMBOL(ipmi_alloc_smi_msg);
 static void free_recv_msg(struct ipmi_recv_msg *msg)
 {
 	atomic_dec(&recv_msg_inuse_count);
-	kfree(msg);
+	/* Try to keep as much stuff out of the panic path as possible. */
+	if (!oops_in_progress)
+		kfree(msg);
 }
 
 static struct ipmi_recv_msg *ipmi_alloc_recv_msg(void)
@@ -4839,7 +4843,7 @@ static struct ipmi_recv_msg *ipmi_alloc_recv_msg(void)
 
 void ipmi_free_recv_msg(struct ipmi_recv_msg *msg)
 {
-	if (msg->user)
+	if (msg->user && !oops_in_progress)
 		kref_put(&msg->user->refcount, free_user);
 	msg->done(msg);
 }
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 6384510c48d6b..92eda5b2f1341 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -342,13 +342,17 @@ static atomic_t msg_tofree = ATOMIC_INIT(0);
 static DECLARE_COMPLETION(msg_wait);
 static void msg_free_smi(struct ipmi_smi_msg *msg)
 {
-	if (atomic_dec_and_test(&msg_tofree))
-		complete(&msg_wait);
+	if (atomic_dec_and_test(&msg_tofree)) {
+		if (!oops_in_progress)
+			complete(&msg_wait);
+	}
 }
 static void msg_free_recv(struct ipmi_recv_msg *msg)
 {
-	if (atomic_dec_and_test(&msg_tofree))
-		complete(&msg_wait);
+	if (atomic_dec_and_test(&msg_tofree)) {
+		if (!oops_in_progress)
+			complete(&msg_wait);
+	}
 }
 static struct ipmi_smi_msg smi_msg = {
 	.done = msg_free_smi
@@ -434,8 +438,10 @@ static int _ipmi_set_timeout(int do_heartbeat)
 	rv = __ipmi_set_timeout(&smi_msg,
 				&recv_msg,
 				&send_heartbeat_now);
-	if (rv)
+	if (rv) {
+		atomic_set(&msg_tofree, 0);
 		return rv;
+	}
 
 	wait_for_completion(&msg_wait);
 
@@ -580,6 +586,7 @@ restart:
 				      &recv_msg,
 				      1);
 	if (rv) {
+		atomic_set(&msg_tofree, 0);
 		pr_warn("heartbeat send failure: %d\n", rv);
 		return rv;
 	}
-- 
GitLab


From f09e1a2d2c74ff5bdeb6b0ad63435ee0eb9c4263 Mon Sep 17 00:00:00 2001
From: Josh Don <joshdon@google.com>
Date: Fri, 27 Aug 2021 09:54:38 -0700
Subject: [PATCH 1131/4878] fs/proc/uptime.c: Fix idle time reporting in
 /proc/uptime

[ Upstream commit a130e8fbc7de796eb6e680724d87f4737a26d0ac ]

/proc/uptime reports idle time by reading the CPUTIME_IDLE field from
the per-cpu kcpustats. However, on NO_HZ systems, idle time is not
continually updated on idle cpus, leading this value to appear
incorrectly small.

/proc/stat performs an accounting update when reading idle time; we
can use the same approach for uptime.

With this patch, /proc/stat and /proc/uptime now agree on idle time.
Additionally, the following shows idle time tick up consistently on an
idle machine:

  (while true; do cat /proc/uptime; sleep 1; done) | awk '{print $2-prev; prev=$2}'

Reported-by: Luigi Rizzo <lrizzo@google.com>
Signed-off-by: Josh Don <joshdon@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lkml.kernel.org/r/20210827165438.3280779-1-joshdon@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/proc/stat.c              |  4 ++--
 fs/proc/uptime.c            | 14 +++++++++-----
 include/linux/kernel_stat.h |  1 +
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 4695b6de31512..3bed48d8228b4 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -23,7 +23,7 @@
 
 #ifdef arch_idle_time
 
-static u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
+u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
 {
 	u64 idle;
 
@@ -45,7 +45,7 @@ static u64 get_iowait_time(struct kernel_cpustat *kcs, int cpu)
 
 #else
 
-static u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
+u64 get_idle_time(struct kernel_cpustat *kcs, int cpu)
 {
 	u64 idle, idle_usecs = -1ULL;
 
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index 5a1b228964fb7..deb99bc9b7e6b 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -12,18 +12,22 @@ static int uptime_proc_show(struct seq_file *m, void *v)
 {
 	struct timespec64 uptime;
 	struct timespec64 idle;
-	u64 nsec;
+	u64 idle_nsec;
 	u32 rem;
 	int i;
 
-	nsec = 0;
-	for_each_possible_cpu(i)
-		nsec += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];
+	idle_nsec = 0;
+	for_each_possible_cpu(i) {
+		struct kernel_cpustat kcs;
+
+		kcpustat_cpu_fetch(&kcs, i);
+		idle_nsec += get_idle_time(&kcs, i);
+	}
 
 	ktime_get_boottime_ts64(&uptime);
 	timens_add_boottime(&uptime);
 
-	idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem);
+	idle.tv_sec = div_u64_rem(idle_nsec, NSEC_PER_SEC, &rem);
 	idle.tv_nsec = rem;
 	seq_printf(m, "%lu.%02lu %lu.%02lu\n",
 			(unsigned long) uptime.tv_sec,
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 89f0745c096d4..8fff3500d50ee 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -103,6 +103,7 @@ extern void account_system_index_time(struct task_struct *, u64,
 				      enum cpu_usage_stat);
 extern void account_steal_time(u64);
 extern void account_idle_time(u64);
+extern u64 get_idle_time(struct kernel_cpustat *kcs, int cpu);
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
 static inline void account_process_tick(struct task_struct *tsk, int user)
-- 
GitLab


From 272e54604cf7f9420d907c39d977e08e0f7ffde5 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 29 Sep 2021 18:31:25 +0200
Subject: [PATCH 1132/4878] ACPICA: Avoid evaluating methods too early during
 system resume

[ Upstream commit d3c4b6f64ad356c0d9ddbcf73fa471e6a841cc5c ]

ACPICA commit 0762982923f95eb652cf7ded27356b247c9774de

During wakeup from system-wide sleep states, acpi_get_sleep_type_data()
is called and it tries to get memory from the slab allocator in order
to evaluate a control method, but if KFENCE is enabled in the kernel,
the memory allocation attempt causes an IRQ work to be queued and a
self-IPI to be sent to the CPU running the code which requires the
memory controller to be ready, so if that happens too early in the
wakeup path, it doesn't work.

Prevent that from taking place by calling acpi_get_sleep_type_data()
for S0 upfront, when preparing to enter a given sleep state, and
saving the data obtained by it for later use during system wakeup.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214271
Reported-by: Reik Keutterling <spielkind@gmail.com>
Tested-by: Reik Keutterling <spielkind@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpica/acglobal.h  |  2 ++
 drivers/acpi/acpica/hwesleep.c  |  8 ++------
 drivers/acpi/acpica/hwsleep.c   | 11 ++++-------
 drivers/acpi/acpica/hwxfsleep.c |  7 +++++++
 4 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 2fee91f57b213..bd84d7f95e5f9 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -226,6 +226,8 @@ extern struct acpi_bit_register_info
     acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
+ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a_s0);
+ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b_s0);
 
 /*****************************************************************************
  *
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index d9be5d0545d4c..4836a4b8b38b8 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -147,17 +147,13 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 
 acpi_status acpi_hw_extended_wake_prep(u8 sleep_state)
 {
-	acpi_status status;
 	u8 sleep_type_value;
 
 	ACPI_FUNCTION_TRACE(hw_extended_wake_prep);
 
-	status = acpi_get_sleep_type_data(ACPI_STATE_S0,
-					  &acpi_gbl_sleep_type_a,
-					  &acpi_gbl_sleep_type_b);
-	if (ACPI_SUCCESS(status)) {
+	if (acpi_gbl_sleep_type_a_s0 != ACPI_SLEEP_TYPE_INVALID) {
 		sleep_type_value =
-		    ((acpi_gbl_sleep_type_a << ACPI_X_SLEEP_TYPE_POSITION) &
+		    ((acpi_gbl_sleep_type_a_s0 << ACPI_X_SLEEP_TYPE_POSITION) &
 		     ACPI_X_SLEEP_TYPE_MASK);
 
 		(void)acpi_write((u64)(sleep_type_value | ACPI_X_SLEEP_ENABLE),
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 317ae870336b7..fcc84d196238a 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -179,7 +179,7 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 
 acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
 {
-	acpi_status status;
+	acpi_status status = AE_OK;
 	struct acpi_bit_register_info *sleep_type_reg_info;
 	struct acpi_bit_register_info *sleep_enable_reg_info;
 	u32 pm1a_control;
@@ -192,10 +192,7 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
 	 * This is unclear from the ACPI Spec, but it is required
 	 * by some machines.
 	 */
-	status = acpi_get_sleep_type_data(ACPI_STATE_S0,
-					  &acpi_gbl_sleep_type_a,
-					  &acpi_gbl_sleep_type_b);
-	if (ACPI_SUCCESS(status)) {
+	if (acpi_gbl_sleep_type_a_s0 != ACPI_SLEEP_TYPE_INVALID) {
 		sleep_type_reg_info =
 		    acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE);
 		sleep_enable_reg_info =
@@ -216,9 +213,9 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
 
 			/* Insert the SLP_TYP bits */
 
-			pm1a_control |= (acpi_gbl_sleep_type_a <<
+			pm1a_control |= (acpi_gbl_sleep_type_a_s0 <<
 					 sleep_type_reg_info->bit_position);
-			pm1b_control |= (acpi_gbl_sleep_type_b <<
+			pm1b_control |= (acpi_gbl_sleep_type_b_s0 <<
 					 sleep_type_reg_info->bit_position);
 
 			/* Write the control registers and ignore any errors */
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index a4b66f4b27141..f1645d87864c3 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -217,6 +217,13 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
 		return_ACPI_STATUS(status);
 	}
 
+	status = acpi_get_sleep_type_data(ACPI_STATE_S0,
+					  &acpi_gbl_sleep_type_a_s0,
+					  &acpi_gbl_sleep_type_b_s0);
+	if (ACPI_FAILURE(status)) {
+		acpi_gbl_sleep_type_a_s0 = ACPI_SLEEP_TYPE_INVALID;
+	}
+
 	/* Execute the _PTS method (Prepare To Sleep) */
 
 	arg_list.count = 1;
-- 
GitLab


From b499d405716061def13c61b74fdcba9ab74801ee Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Thu, 7 Oct 2021 00:26:21 +0200
Subject: [PATCH 1133/4878] media: ipu3-imgu: imgu_fmt: Handle properly try

[ Upstream commit 553481e38045f349bb9aa596d03bebd020020c9c ]

For a try_fmt call, the node noes not need to be enabled.

Fixes v4l2-compliance

fail: v4l2-test-formats.cpp(717): Video Output Multiplanar is valid, but
				  no TRY_FMT was implemented
test VIDIOC_TRY_FMT: FAIL

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/ipu3/ipu3-v4l2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/ipu3/ipu3-v4l2.c b/drivers/staging/media/ipu3/ipu3-v4l2.c
index e0179616a29cf..7926a777cbc8b 100644
--- a/drivers/staging/media/ipu3/ipu3-v4l2.c
+++ b/drivers/staging/media/ipu3/ipu3-v4l2.c
@@ -696,7 +696,7 @@ static int imgu_fmt(struct imgu_device *imgu, unsigned int pipe, int node,
 
 		/* CSS expects some format on OUT queue */
 		if (i != IPU3_CSS_QUEUE_OUT &&
-		    !imgu_pipe->nodes[inode].enabled) {
+		    !imgu_pipe->nodes[inode].enabled && !try) {
 			fmts[i] = NULL;
 			continue;
 		}
-- 
GitLab


From e3bc3e114135b6c450f5d4926db6141506dbfc69 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Thu, 7 Oct 2021 00:26:22 +0200
Subject: [PATCH 1134/4878] media: ipu3-imgu: VIDIOC_QUERYCAP: Fix bus_info

[ Upstream commit ea2b9a33711604e91f8c826f4dcb3c12baa1990a ]

bus_info field had a different value for the media entity and the video
device.

Fixes v4l2-compliance:

v4l2-compliance.cpp(637): media bus_info 'PCI:0000:00:05.0' differs from
			  V4L2 bus_info 'PCI:viewfinder'

Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/ipu3/ipu3-v4l2.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/ipu3/ipu3-v4l2.c b/drivers/staging/media/ipu3/ipu3-v4l2.c
index 7926a777cbc8b..103f84466f6fc 100644
--- a/drivers/staging/media/ipu3/ipu3-v4l2.c
+++ b/drivers/staging/media/ipu3/ipu3-v4l2.c
@@ -592,11 +592,12 @@ static const struct imgu_fmt *find_format(struct v4l2_format *f, u32 type)
 static int imgu_vidioc_querycap(struct file *file, void *fh,
 				struct v4l2_capability *cap)
 {
-	struct imgu_video_device *node = file_to_intel_imgu_node(file);
+	struct imgu_device *imgu = video_drvdata(file);
 
 	strscpy(cap->driver, IMGU_NAME, sizeof(cap->driver));
 	strscpy(cap->card, IMGU_NAME, sizeof(cap->card));
-	snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", node->name);
+	snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
+		 pci_name(imgu->pci_dev));
 
 	return 0;
 }
-- 
GitLab


From b94e5bd540f4387fb7833509816ae02cc816a65a Mon Sep 17 00:00:00 2001
From: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Date: Mon, 7 Dec 2020 07:16:06 +0100
Subject: [PATCH 1135/4878] media: usb: dvd-usb: fix uninit-value bug in
 dibusb_read_eeprom_byte()

[ Upstream commit 899a61a3305d49e8a712e9ab20d0db94bde5929f ]

In dibusb_read_eeprom_byte(), if dibusb_i2c_msg() fails, val gets
assigned an value that's not properly initialized.
Using kzalloc() in place of kmalloc() for the buffer fixes this issue,
as the val can now be set to 0 in the event dibusb_i2c_msg() fails.

Reported-by: syzbot+e27b4fd589762b0b9329@syzkaller.appspotmail.com
Tested-by: syzbot+e27b4fd589762b0b9329@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/dvb-usb/dibusb-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb/dibusb-common.c b/drivers/media/usb/dvb-usb/dibusb-common.c
index 02b51d1a1b67c..aff60c10cb0b2 100644
--- a/drivers/media/usb/dvb-usb/dibusb-common.c
+++ b/drivers/media/usb/dvb-usb/dibusb-common.c
@@ -223,7 +223,7 @@ int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val)
 	u8 *buf;
 	int rc;
 
-	buf = kmalloc(2, GFP_KERNEL);
+	buf = kzalloc(2, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
-- 
GitLab


From 8524501a0e7af259779c556a2fda2ff2dd47c992 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <atenart@kernel.org>
Date: Thu, 7 Oct 2021 16:00:51 +0200
Subject: [PATCH 1136/4878] net-sysfs: try not to restart the syscall if it
 will fail eventually

[ Upstream commit 146e5e733310379f51924111068f08a3af0db830 ]

Due to deadlocks in the networking subsystem spotted 12 years ago[1],
a workaround was put in place[2] to avoid taking the rtnl lock when it
was not available and restarting the syscall (back to VFS, letting
userspace spin). The following construction is found a lot in the net
sysfs and sysctl code:

  if (!rtnl_trylock())
          return restart_syscall();

This can be problematic when multiple userspace threads use such
interfaces in a short period, making them to spin a lot. This happens
for example when adding and moving virtual interfaces: userspace
programs listening on events, such as systemd-udevd and NetworkManager,
do trigger actions reading files in sysfs. It gets worse when a lot of
virtual interfaces are created concurrently, say when creating
containers at boot time.

Returning early without hitting the above pattern when the syscall will
fail eventually does make things better. While it is not a fix for the
issue, it does ease things.

[1] https://lore.kernel.org/netdev/49A4D5D5.5090602@trash.net/
    https://lore.kernel.org/netdev/m14oyhis31.fsf@fess.ebiederm.org/
    and https://lore.kernel.org/netdev/20090226084924.16cb3e08@nehalam/
[2] Rightfully, those deadlocks are *hard* to solve.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/net-sysfs.c | 55 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index cc5f760c78250..af59123601055 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -175,6 +175,14 @@ static int change_carrier(struct net_device *dev, unsigned long new_carrier)
 static ssize_t carrier_store(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t len)
 {
+	struct net_device *netdev = to_net_dev(dev);
+
+	/* The check is also done in change_carrier; this helps returning early
+	 * without hitting the trylock/restart in netdev_store.
+	 */
+	if (!netdev->netdev_ops->ndo_change_carrier)
+		return -EOPNOTSUPP;
+
 	return netdev_store(dev, attr, buf, len, change_carrier);
 }
 
@@ -196,6 +204,12 @@ static ssize_t speed_show(struct device *dev,
 	struct net_device *netdev = to_net_dev(dev);
 	int ret = -EINVAL;
 
+	/* The check is also done in __ethtool_get_link_ksettings; this helps
+	 * returning early without hitting the trylock/restart below.
+	 */
+	if (!netdev->ethtool_ops->get_link_ksettings)
+		return ret;
+
 	if (!rtnl_trylock())
 		return restart_syscall();
 
@@ -216,6 +230,12 @@ static ssize_t duplex_show(struct device *dev,
 	struct net_device *netdev = to_net_dev(dev);
 	int ret = -EINVAL;
 
+	/* The check is also done in __ethtool_get_link_ksettings; this helps
+	 * returning early without hitting the trylock/restart below.
+	 */
+	if (!netdev->ethtool_ops->get_link_ksettings)
+		return ret;
+
 	if (!rtnl_trylock())
 		return restart_syscall();
 
@@ -468,6 +488,14 @@ static ssize_t proto_down_store(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf, size_t len)
 {
+	struct net_device *netdev = to_net_dev(dev);
+
+	/* The check is also done in change_proto_down; this helps returning
+	 * early without hitting the trylock/restart in netdev_store.
+	 */
+	if (!netdev->netdev_ops->ndo_change_proto_down)
+		return -EOPNOTSUPP;
+
 	return netdev_store(dev, attr, buf, len, change_proto_down);
 }
 NETDEVICE_SHOW_RW(proto_down, fmt_dec);
@@ -478,6 +506,12 @@ static ssize_t phys_port_id_show(struct device *dev,
 	struct net_device *netdev = to_net_dev(dev);
 	ssize_t ret = -EINVAL;
 
+	/* The check is also done in dev_get_phys_port_id; this helps returning
+	 * early without hitting the trylock/restart below.
+	 */
+	if (!netdev->netdev_ops->ndo_get_phys_port_id)
+		return -EOPNOTSUPP;
+
 	if (!rtnl_trylock())
 		return restart_syscall();
 
@@ -500,6 +534,13 @@ static ssize_t phys_port_name_show(struct device *dev,
 	struct net_device *netdev = to_net_dev(dev);
 	ssize_t ret = -EINVAL;
 
+	/* The checks are also done in dev_get_phys_port_name; this helps
+	 * returning early without hitting the trylock/restart below.
+	 */
+	if (!netdev->netdev_ops->ndo_get_phys_port_name &&
+	    !netdev->netdev_ops->ndo_get_devlink_port)
+		return -EOPNOTSUPP;
+
 	if (!rtnl_trylock())
 		return restart_syscall();
 
@@ -522,6 +563,14 @@ static ssize_t phys_switch_id_show(struct device *dev,
 	struct net_device *netdev = to_net_dev(dev);
 	ssize_t ret = -EINVAL;
 
+	/* The checks are also done in dev_get_phys_port_name; this helps
+	 * returning early without hitting the trylock/restart below. This works
+	 * because recurse is false when calling dev_get_port_parent_id.
+	 */
+	if (!netdev->netdev_ops->ndo_get_port_parent_id &&
+	    !netdev->netdev_ops->ndo_get_devlink_port)
+		return -EOPNOTSUPP;
+
 	if (!rtnl_trylock())
 		return restart_syscall();
 
@@ -1179,6 +1228,12 @@ static ssize_t tx_maxrate_store(struct netdev_queue *queue,
 	if (!capable(CAP_NET_ADMIN))
 		return -EPERM;
 
+	/* The check is also done later; this helps returning early without
+	 * hitting the trylock/restart below.
+	 */
+	if (!dev->netdev_ops->ndo_set_tx_maxrate)
+		return -EOPNOTSUPP;
+
 	err = kstrtou32(buf, 10, &rate);
 	if (err < 0)
 		return err;
-- 
GitLab


From 3c2434d9a6c6807f84a7c7be9396588897e4f31f Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Wed, 18 Aug 2021 11:24:50 -0400
Subject: [PATCH 1137/4878] tracefs: Have tracefs directories not set OTH
 permission bits by default

[ Upstream commit 49d67e445742bbcb03106b735b2ab39f6e5c56bc ]

The tracefs file system is by default mounted such that only root user can
access it. But there are legitimate reasons to create a group and allow
those added to the group to have access to tracing. By changing the
permissions of the tracefs mount point to allow access, it will allow
group access to the tracefs directory.

There should not be any real reason to allow all access to the tracefs
directory as it contains sensitive information. Have the default
permission of directories being created not have any OTH (other) bits set,
such that an admin that wants to give permission to a group has to first
disable all OTH bits in the file system.

Link: https://lkml.kernel.org/r/20210818153038.664127804@goodmis.org

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/tracefs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 0ee8c6dfb0364..bf58ae6f984fe 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -430,7 +430,8 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 	if (unlikely(!inode))
 		return failed_creating(dentry);
 
-	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
+	/* Do not set bits for OTH */
+	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP;
 	inode->i_op = ops;
 	inode->i_fop = &simple_dir_operations;
 
-- 
GitLab


From 38608d32adf08d7f9bf11f964e13fc7b14fde4c6 Mon Sep 17 00:00:00 2001
From: Tuo Li <islituo@gmail.com>
Date: Thu, 5 Aug 2021 08:38:53 -0700
Subject: [PATCH 1138/4878] ath: dfs_pattern_detector: Fix possible
 null-pointer dereference in channel_detector_create()

[ Upstream commit 4b6012a7830b813799a7faf40daa02a837e0fd5b ]

kzalloc() is used to allocate memory for cd->detectors, and if it fails,
channel_detector_exit() behind the label fail will be called:
  channel_detector_exit(dpd, cd);

In channel_detector_exit(), cd->detectors is dereferenced through:
  struct pri_detector *de = cd->detectors[i];

To fix this possible null-pointer dereference, check cd->detectors before
the for loop to dereference cd->detectors.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210805153854.154066-1-islituo@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/dfs_pattern_detector.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/dfs_pattern_detector.c b/drivers/net/wireless/ath/dfs_pattern_detector.c
index 0813473793df1..87369073098c8 100644
--- a/drivers/net/wireless/ath/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/dfs_pattern_detector.c
@@ -182,10 +182,12 @@ static void channel_detector_exit(struct dfs_pattern_detector *dpd,
 	if (cd == NULL)
 		return;
 	list_del(&cd->head);
-	for (i = 0; i < dpd->num_radar_types; i++) {
-		struct pri_detector *de = cd->detectors[i];
-		if (de != NULL)
-			de->exit(de);
+	if (cd->detectors) {
+		for (i = 0; i < dpd->num_radar_types; i++) {
+			struct pri_detector *de = cd->detectors[i];
+			if (de != NULL)
+				de->exit(de);
+		}
 	}
 	kfree(cd->detectors);
 	kfree(cd);
-- 
GitLab


From 219df0f6bad4d301799c894e384e3832682d34f1 Mon Sep 17 00:00:00 2001
From: Xin Xiong <xiongx18@fudan.edu.cn>
Date: Sat, 9 Oct 2021 12:19:18 +0800
Subject: [PATCH 1139/4878] mmc: moxart: Fix reference count leaks in
 moxart_probe

[ Upstream commit 8105c2abbf36296bf38ca44f55ee45d160db476a ]

The issue happens in several error handling paths on two refcounted
object related to the object "host" (dma_chan_rx, dma_chan_tx). In
these paths, the function forgets to decrement one or both objects'
reference count increased earlier by dma_request_chan(), causing
reference count leaks.

Fix it by balancing the refcounts of both objects in some error
handling paths. In correspondence with the changes in moxart_probe(),
IS_ERR() is replaced with IS_ERR_OR_NULL() in moxart_remove() as well.

Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/20211009041918.28419-1-xiongx18@fudan.edu.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/moxart-mmc.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index 2e4a7c6971dc9..dcd128ecdf15b 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -624,6 +624,14 @@ static int moxart_probe(struct platform_device *pdev)
 			ret = -EPROBE_DEFER;
 			goto out;
 		}
+		if (!IS_ERR(host->dma_chan_tx)) {
+			dma_release_channel(host->dma_chan_tx);
+			host->dma_chan_tx = NULL;
+		}
+		if (!IS_ERR(host->dma_chan_rx)) {
+			dma_release_channel(host->dma_chan_rx);
+			host->dma_chan_rx = NULL;
+		}
 		dev_dbg(dev, "PIO mode transfer enabled\n");
 		host->have_dma = false;
 	} else {
@@ -678,6 +686,10 @@ static int moxart_probe(struct platform_device *pdev)
 	return 0;
 
 out:
+	if (!IS_ERR_OR_NULL(host->dma_chan_tx))
+		dma_release_channel(host->dma_chan_tx);
+	if (!IS_ERR_OR_NULL(host->dma_chan_rx))
+		dma_release_channel(host->dma_chan_rx);
 	if (mmc)
 		mmc_free_host(mmc);
 	return ret;
@@ -690,9 +702,9 @@ static int moxart_remove(struct platform_device *pdev)
 
 	dev_set_drvdata(&pdev->dev, NULL);
 
-	if (!IS_ERR(host->dma_chan_tx))
+	if (!IS_ERR_OR_NULL(host->dma_chan_tx))
 		dma_release_channel(host->dma_chan_tx);
-	if (!IS_ERR(host->dma_chan_rx))
+	if (!IS_ERR_OR_NULL(host->dma_chan_rx))
 		dma_release_channel(host->dma_chan_rx);
 	mmc_remove_host(mmc);
 	mmc_free_host(mmc);
-- 
GitLab


From b60086601832a8f8c05f7a833f2869aad21f2b50 Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Wed, 21 Jul 2021 19:03:47 +0200
Subject: [PATCH 1140/4878] iov_iter: Fix iov_iter_get_pages{,_alloc} page
 fault return value

[ Upstream commit 814a66741b9ffb5e1ba119e368b178edb0b7322d ]

Both iov_iter_get_pages and iov_iter_get_pages_alloc return the number
of bytes of the iovec they could get the pages for.  When they cannot
get any pages, they're supposed to return 0, but when the start of the
iovec isn't page aligned, the calculation goes wrong and they return a
negative value.  Fix both functions.

In addition, change iov_iter_get_pages_alloc to return NULL in that case
to prevent resource leaks.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/iov_iter.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 537bfdc8cd095..b364231b5fc8c 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -1343,7 +1343,7 @@ ssize_t iov_iter_get_pages(struct iov_iter *i,
 		res = get_user_pages_fast(addr, n,
 				iov_iter_rw(i) != WRITE ?  FOLL_WRITE : 0,
 				pages);
-		if (unlikely(res < 0))
+		if (unlikely(res <= 0))
 			return res;
 		return (res == n ? len : res * PAGE_SIZE) - *start;
 	0;}),({
@@ -1424,8 +1424,9 @@ ssize_t iov_iter_get_pages_alloc(struct iov_iter *i,
 			return -ENOMEM;
 		res = get_user_pages_fast(addr, n,
 				iov_iter_rw(i) != WRITE ?  FOLL_WRITE : 0, p);
-		if (unlikely(res < 0)) {
+		if (unlikely(res <= 0)) {
 			kvfree(p);
+			*pages = NULL;
 			return res;
 		}
 		*pages = p;
-- 
GitLab


From 65c84e09e8d431c6c3273f118fedd4a46e67313c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Almeida?= <andrealmeid@collabora.com>
Date: Fri, 8 Oct 2021 00:05:29 -0300
Subject: [PATCH 1141/4878] ACPI: battery: Accept charges over the design
 capacity as full
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 2835f327bd1240508db2c89fe94a056faa53c49a ]

Some buggy firmware and/or brand new batteries can support a charge that's
slightly over the reported design capacity. In such cases, the kernel will
report to userspace that the charging state of the battery is "Unknown",
when in reality the battery charge is "Full", at least from the design
capacity point of view. Make the fallback condition accepts capacities
over the designed capacity so userspace knows that is full.

Signed-off-by: André Almeida <andrealmeid@collabora.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/battery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 08ee1c7b12e00..e04352c1dc2ce 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -174,7 +174,7 @@ static int acpi_battery_is_charged(struct acpi_battery *battery)
 		return 1;
 
 	/* fallback to using design values for broken batteries */
-	if (battery->design_capacity == battery->capacity_now)
+	if (battery->design_capacity <= battery->capacity_now)
 		return 1;
 
 	/* we don't do any sort of metric based on percentages */
-- 
GitLab


From 832fad367cac9ca075a1aff92e21dc77ea308e96 Mon Sep 17 00:00:00 2001
From: Yifan Zhang <yifan1.zhang@amd.com>
Date: Mon, 11 Oct 2021 20:42:31 +0800
Subject: [PATCH 1142/4878] drm/amdkfd: fix resume error when iommu disabled in
 Picasso

[ Upstream commit 6f4b590aae217da16cfa44039a2abcfb209137ab ]

When IOMMU disabled in sbios and kfd in iommuv2 path,
IOMMU resume failure blocks system resume. Don't allow kfd to
use iommu v2 when iommu is disabled.

Reported-by: youling <youling257@gmail.com>
Tested-by: youling <youling257@gmail.com>
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 903170e59342c..5751bddc9cadd 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -744,6 +744,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 	kfd_double_confirm_iommu_support(kfd);
 
 	if (kfd_iommu_device_init(kfd)) {
+		kfd->use_iommu_v2 = false;
 		dev_err(kfd_device, "Error initializing iommuv2\n");
 		goto device_iommu_error;
 	}
-- 
GitLab


From 9101e2574b8153c80eb9056f86cfa4a853158f21 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Date: Tue, 12 Oct 2021 12:34:02 +0200
Subject: [PATCH 1143/4878] net: phy: micrel: make *-skew-ps check more lenient

[ Upstream commit 67ca5159dbe2edb5dae7544447b8677d2596933a ]

It seems reasonable to fine-tune only some of the skew values when using
one of the rgmii-*id PHY modes, and even when all skew values are
specified, using the correct ID PHY mode makes sense for documentation
purposes. Such a configuration also appears in the binding docs in
Documentation/devicetree/bindings/net/micrel-ksz90x1.txt, so the driver
should not warn about it.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/20211012103402.21438-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/micrel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 69b20a466c61c..b341a8be09f92 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -732,9 +732,9 @@ static int ksz9031_config_init(struct phy_device *phydev)
 				MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4,
 				tx_data_skews, 4, &update);
 
-		if (update && phydev->interface != PHY_INTERFACE_MODE_RGMII)
+		if (update && !phy_interface_is_rgmii(phydev))
 			phydev_warn(phydev,
-				    "*-skew-ps values should be used only with phy-mode = \"rgmii\"\n");
+				    "*-skew-ps values should be used only with RGMII PHY modes\n");
 
 		/* Silicon Errata Sheet (DS80000691D or DS80000692D):
 		 * When the device links in the 1000BASE-T slave mode only,
-- 
GitLab


From e1d7f0202a9f038a59cc6ed954fdb4eba1324abe Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Wed, 29 Sep 2021 15:02:18 -0700
Subject: [PATCH 1144/4878] leaking_addresses: Always print a trailing newline

[ Upstream commit cf2a85efdade117e2169d6e26641016cbbf03ef0 ]

For files that lack trailing newlines and match a leaking address (e.g.
wchan[1]), the leaking_addresses.pl report would run together with the
next line, making things look corrupted.

Unconditionally remove the newline on input, and write it back out on
output.

[1] https://lore.kernel.org/all/20210103142726.GC30643@xsang-OptiPlex-9020/

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211008111626.151570317@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/leaking_addresses.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl
index b2d8b8aa2d99e..8f636a23bc3f2 100755
--- a/scripts/leaking_addresses.pl
+++ b/scripts/leaking_addresses.pl
@@ -455,8 +455,9 @@ sub parse_file
 
 	open my $fh, "<", $file or return;
 	while ( <$fh> ) {
+		chomp;
 		if (may_leak_address($_)) {
-			print $file . ': ' . $_;
+			printf("$file: $_\n");
 		}
 	}
 	close $fh;
-- 
GitLab


From 517feec952ae3d728cea482fead1232a19b95078 Mon Sep 17 00:00:00 2001
From: Tim Gardner <tim.gardner@canonical.com>
Date: Wed, 29 Sep 2021 10:25:54 -0600
Subject: [PATCH 1145/4878] drm/msm: prevent NULL dereference in
 msm_gpu_crashstate_capture()

[ Upstream commit b220c154832c5cd0df34cbcbcc19d7135c16e823 ]

Coverity complains of a possible NULL dereference:

CID 120718 (#1 of 1): Dereference null return value (NULL_RETURNS)
23. dereference: Dereferencing a pointer that might be NULL state->bos when
    calling msm_gpu_crashstate_get_bo. [show details]
301                        msm_gpu_crashstate_get_bo(state, submit->bos[i].obj,
302                                submit->bos[i].iova, submit->bos[i].flags);

Fix this by employing the same state->bos NULL check as is used in the next
for loop.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-arm-msm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210929162554.14295-1-tim.gardner@canonical.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/msm_gpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 55d16489d0f3f..90c26da109026 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -376,7 +376,7 @@ static void msm_gpu_crashstate_capture(struct msm_gpu *gpu,
 		state->bos = kcalloc(nr,
 			sizeof(struct msm_gpu_state_bo), GFP_KERNEL);
 
-		for (i = 0; i < submit->nr_bos; i++) {
+		for (i = 0; state->bos && i < submit->nr_bos; i++) {
 			if (should_dump(submit, i)) {
 				msm_gpu_crashstate_get_bo(state, submit->bos[i].obj,
 					submit->bos[i].iova, submit->bos[i].flags);
-- 
GitLab


From b34ea3c91eacdc50c761506cab35b14f67216f76 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 6 Oct 2021 12:01:07 -0600
Subject: [PATCH 1146/4878] block: bump max plugged deferred size from 16 to 32

[ Upstream commit ba0ffdd8ce48ad7f7e85191cd29f9674caca3745 ]

Particularly for NVMe with efficient deferred submission for many
requests, there are nice benefits to be seen by bumping the default max
plug count from 16 to 32. This is especially true for virtualized setups,
where the submit part is more expensive. But can be noticed even on
native hardware.

Reduce the multiple queue factor from 4 to 2, since we're changing the
default size.

While changing it, move the defines into the block layer private header.
These aren't values that anyone outside of the block layer uses, or
should use.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-mq.c         | 4 ++--
 block/blk.h            | 6 ++++++
 include/linux/blkdev.h | 2 --
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 69cc552c3dfc9..e4422a09b1265 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2116,14 +2116,14 @@ static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
 }
 
 /*
- * Allow 4x BLK_MAX_REQUEST_COUNT requests on plug queue for multiple
+ * Allow 2x BLK_MAX_REQUEST_COUNT requests on plug queue for multiple
  * queues. This is important for md arrays to benefit from merging
  * requests.
  */
 static inline unsigned short blk_plug_max_rq_count(struct blk_plug *plug)
 {
 	if (plug->multiple_queues)
-		return BLK_MAX_REQUEST_COUNT * 4;
+		return BLK_MAX_REQUEST_COUNT * 2;
 	return BLK_MAX_REQUEST_COUNT;
 }
 
diff --git a/block/blk.h b/block/blk.h
index f84c83300f6fa..997941cd999f6 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -188,6 +188,12 @@ bool blk_bio_list_merge(struct request_queue *q, struct list_head *list,
 void blk_account_io_start(struct request *req);
 void blk_account_io_done(struct request *req, u64 now);
 
+/*
+ * Plug flush limits
+ */
+#define BLK_MAX_REQUEST_COUNT	32
+#define BLK_PLUG_FLUSH_SIZE	(128 * 1024)
+
 /*
  * Internal elevator interface
  */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8aae375864b6b..4ba17736b614f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1248,8 +1248,6 @@ struct blk_plug {
 	bool multiple_queues;
 	bool nowait;
 };
-#define BLK_MAX_REQUEST_COUNT 16
-#define BLK_PLUG_FLUSH_SIZE (128 * 1024)
 
 struct blk_plug_cb;
 typedef void (*blk_plug_cb_fn)(struct blk_plug_cb *, bool);
-- 
GitLab


From 2338c3501726895c1657adda2308fcf9e6f17449 Mon Sep 17 00:00:00 2001
From: Xiao Ni <xni@redhat.com>
Date: Wed, 13 Oct 2021 22:59:33 +0800
Subject: [PATCH 1147/4878] md: update superblock after changing rdev flags in
 state_store

[ Upstream commit 8b9e2291e355a0eafdd5b1e21a94a6659f24b351 ]

When the in memory flag is changed, we need to persist the change in the
rdev superblock flags. This is needed for "writemostly" and "failfast".

Reviewed-by: Li Feng <fengli@smartx.com>
Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/md.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index f16f190546ef3..7871e7dcd4836 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3024,7 +3024,11 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
 	 *  -write_error - clears WriteErrorSeen
 	 *  {,-}failfast - set/clear FailFast
 	 */
+
+	struct mddev *mddev = rdev->mddev;
 	int err = -EINVAL;
+	bool need_update_sb = false;
+
 	if (cmd_match(buf, "faulty") && rdev->mddev->pers) {
 		md_error(rdev->mddev, rdev);
 		if (test_bit(Faulty, &rdev->flags))
@@ -3039,7 +3043,6 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
 		if (rdev->raid_disk >= 0)
 			err = -EBUSY;
 		else {
-			struct mddev *mddev = rdev->mddev;
 			err = 0;
 			if (mddev_is_clustered(mddev))
 				err = md_cluster_ops->remove_disk(mddev, rdev);
@@ -3056,10 +3059,12 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
 	} else if (cmd_match(buf, "writemostly")) {
 		set_bit(WriteMostly, &rdev->flags);
 		mddev_create_serial_pool(rdev->mddev, rdev, false);
+		need_update_sb = true;
 		err = 0;
 	} else if (cmd_match(buf, "-writemostly")) {
 		mddev_destroy_serial_pool(rdev->mddev, rdev, false);
 		clear_bit(WriteMostly, &rdev->flags);
+		need_update_sb = true;
 		err = 0;
 	} else if (cmd_match(buf, "blocked")) {
 		set_bit(Blocked, &rdev->flags);
@@ -3085,9 +3090,11 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
 		err = 0;
 	} else if (cmd_match(buf, "failfast")) {
 		set_bit(FailFast, &rdev->flags);
+		need_update_sb = true;
 		err = 0;
 	} else if (cmd_match(buf, "-failfast")) {
 		clear_bit(FailFast, &rdev->flags);
+		need_update_sb = true;
 		err = 0;
 	} else if (cmd_match(buf, "-insync") && rdev->raid_disk >= 0 &&
 		   !test_bit(Journal, &rdev->flags)) {
@@ -3166,6 +3173,8 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
 		clear_bit(ExternalBbl, &rdev->flags);
 		err = 0;
 	}
+	if (need_update_sb)
+		md_update_sb(mddev, 1);
 	if (!err)
 		sysfs_notify_dirent_safe(rdev->sysfs_state);
 	return err ? err : len;
-- 
GitLab


From cad55afe37c9d4c796d9b2f9531e96ed4204d631 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Sat, 16 Oct 2021 11:26:21 +0000
Subject: [PATCH 1148/4878] memstick: r592: Fix a UAF bug when removing the
 driver

[ Upstream commit 738216c1953e802aa9f930c5d15b8f9092c847ff ]

In r592_remove(), the driver will free dma after freeing the host, which
may cause a UAF bug.

The following log reveals it:

[   45.361796 ] BUG: KASAN: use-after-free in r592_remove+0x269/0x350 [r592]
[   45.364286 ] Call Trace:
[   45.364472 ]  dump_stack_lvl+0xa8/0xd1
[   45.364751 ]  print_address_description+0x87/0x3b0
[   45.365137 ]  kasan_report+0x172/0x1c0
[   45.365415 ]  ? r592_remove+0x269/0x350 [r592]
[   45.365834 ]  ? r592_remove+0x269/0x350 [r592]
[   45.366168 ]  __asan_report_load8_noabort+0x14/0x20
[   45.366531 ]  r592_remove+0x269/0x350 [r592]
[   45.378785 ]
[   45.378903 ] Allocated by task 4674:
[   45.379162 ]  ____kasan_kmalloc+0xb5/0xe0
[   45.379455 ]  __kasan_kmalloc+0x9/0x10
[   45.379730 ]  __kmalloc+0x150/0x280
[   45.379984 ]  memstick_alloc_host+0x2a/0x190
[   45.380664 ]
[   45.380781 ] Freed by task 5509:
[   45.381014 ]  kasan_set_track+0x3d/0x70
[   45.381293 ]  kasan_set_free_info+0x23/0x40
[   45.381635 ]  ____kasan_slab_free+0x10b/0x140
[   45.381950 ]  __kasan_slab_free+0x11/0x20
[   45.382241 ]  slab_free_freelist_hook+0x81/0x150
[   45.382575 ]  kfree+0x13e/0x290
[   45.382805 ]  memstick_free+0x1c/0x20
[   45.383070 ]  device_release+0x9c/0x1d0
[   45.383349 ]  kobject_put+0x2ef/0x4c0
[   45.383616 ]  put_device+0x1f/0x30
[   45.383865 ]  memstick_free_host+0x24/0x30
[   45.384162 ]  r592_remove+0x242/0x350 [r592]
[   45.384473 ]  pci_device_remove+0xa9/0x250

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Link: https://lore.kernel.org/r/1634383581-11055-1-git-send-email-zheyuma97@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memstick/host/r592.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index d2ef46337191c..eaa2a94d18be4 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -837,15 +837,15 @@ static void r592_remove(struct pci_dev *pdev)
 	}
 	memstick_remove_host(dev->host);
 
+	if (dev->dummy_dma_page)
+		dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->dummy_dma_page,
+			dev->dummy_dma_page_physical_address);
+
 	free_irq(dev->irq, dev);
 	iounmap(dev->mmio);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	memstick_free_host(dev->host);
-
-	if (dev->dummy_dma_page)
-		dma_free_coherent(&pdev->dev, PAGE_SIZE, dev->dummy_dma_page,
-			dev->dummy_dma_page_physical_address);
 }
 
 #ifdef CONFIG_PM_SLEEP
-- 
GitLab


From aa5d35e350f6587a17e7b17cc26eb0bfd7dda04c Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:39 +0800
Subject: [PATCH 1149/4878] lib/xz: Avoid overlapping memcpy() with invalid
 input with in-place decompression

[ Upstream commit 83d3c4f22a36d005b55f44628f46cc0d319a75e8 ]

With valid files, the safety margin described in lib/decompress_unxz.c
ensures that these buffers cannot overlap. But if the uncompressed size
of the input is larger than the caller thought, which is possible when
the input file is invalid/corrupt, the buffers can overlap. Obviously
the result will then be garbage (and usually the decoder will return
an error too) but no other harm will happen when such an over-run occurs.

This change only affects uncompressed LZMA2 chunks and so this
should have no effect on performance.

Link: https://lore.kernel.org/r/20211010213145.17462-2-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/decompress_unxz.c |  2 +-
 lib/xz/xz_dec_lzma2.c | 21 +++++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
index 25d59a95bd668..abea25310ac73 100644
--- a/lib/decompress_unxz.c
+++ b/lib/decompress_unxz.c
@@ -167,7 +167,7 @@
  * memeq and memzero are not used much and any remotely sane implementation
  * is fast enough. memcpy/memmove speed matters in multi-call mode, but
  * the kernel image is decompressed in single-call mode, in which only
- * memcpy speed can matter and only if there is a lot of uncompressible data
+ * memmove speed can matter and only if there is a lot of uncompressible data
  * (LZMA2 stores uncompressible chunks in uncompressed form). Thus, the
  * functions below should just be kept small; it's probably not worth
  * optimizing for speed.
diff --git a/lib/xz/xz_dec_lzma2.c b/lib/xz/xz_dec_lzma2.c
index 65a1aad8c223b..a18b52759fd91 100644
--- a/lib/xz/xz_dec_lzma2.c
+++ b/lib/xz/xz_dec_lzma2.c
@@ -387,7 +387,14 @@ static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,
 
 		*left -= copy_size;
 
-		memcpy(dict->buf + dict->pos, b->in + b->in_pos, copy_size);
+		/*
+		 * If doing in-place decompression in single-call mode and the
+		 * uncompressed size of the file is larger than the caller
+		 * thought (i.e. it is invalid input!), the buffers below may
+		 * overlap and cause undefined behavior with memcpy().
+		 * With valid inputs memcpy() would be fine here.
+		 */
+		memmove(dict->buf + dict->pos, b->in + b->in_pos, copy_size);
 		dict->pos += copy_size;
 
 		if (dict->full < dict->pos)
@@ -397,7 +404,11 @@ static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,
 			if (dict->pos == dict->end)
 				dict->pos = 0;
 
-			memcpy(b->out + b->out_pos, b->in + b->in_pos,
+			/*
+			 * Like above but for multi-call mode: use memmove()
+			 * to avoid undefined behavior with invalid input.
+			 */
+			memmove(b->out + b->out_pos, b->in + b->in_pos,
 					copy_size);
 		}
 
@@ -421,6 +432,12 @@ static uint32_t dict_flush(struct dictionary *dict, struct xz_buf *b)
 		if (dict->pos == dict->end)
 			dict->pos = 0;
 
+		/*
+		 * These buffers cannot overlap even if doing in-place
+		 * decompression because in multi-call mode dict->buf
+		 * has been allocated by us in this file; it's not
+		 * provided by the caller like in single-call mode.
+		 */
 		memcpy(b->out + b->out_pos, dict->buf + dict->start,
 				copy_size);
 	}
-- 
GitLab


From ab5c46f258c9040347ac145b524c01834c9f15b8 Mon Sep 17 00:00:00 2001
From: Lasse Collin <lasse.collin@tukaani.org>
Date: Mon, 11 Oct 2021 05:31:40 +0800
Subject: [PATCH 1150/4878] lib/xz: Validate the value before assigning it to
 an enum variable

[ Upstream commit 4f8d7abaa413c34da9d751289849dbfb7c977d05 ]

This might matter, for example, if the underlying type of enum xz_check
was a signed char. In such a case the validation wouldn't have caught an
unsupported header. I don't know if this problem can occur in the kernel
on any arch but it's still good to fix it because some people might copy
the XZ code to their own projects from Linux instead of the upstream
XZ Embedded repository.

This change may increase the code size by a few bytes. An alternative
would have been to use an unsigned int instead of enum xz_check but
using an enumeration looks cleaner.

Link: https://lore.kernel.org/r/20211010213145.17462-3-xiang@kernel.org
Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/xz/xz_dec_stream.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/xz/xz_dec_stream.c b/lib/xz/xz_dec_stream.c
index 32ab2a08b7cbc..a30e3308035fa 100644
--- a/lib/xz/xz_dec_stream.c
+++ b/lib/xz/xz_dec_stream.c
@@ -402,12 +402,12 @@ static enum xz_ret dec_stream_header(struct xz_dec *s)
 	 * we will accept other check types too, but then the check won't
 	 * be verified and a warning (XZ_UNSUPPORTED_CHECK) will be given.
 	 */
+	if (s->temp.buf[HEADER_MAGIC_SIZE + 1] > XZ_CHECK_MAX)
+		return XZ_OPTIONS_ERROR;
+
 	s->check_type = s->temp.buf[HEADER_MAGIC_SIZE + 1];
 
 #ifdef XZ_DEC_ANY_CHECK
-	if (s->check_type > XZ_CHECK_MAX)
-		return XZ_OPTIONS_ERROR;
-
 	if (s->check_type > XZ_CHECK_CRC32)
 		return XZ_UNSUPPORTED_CHECK;
 #else
-- 
GitLab


From 5736f1dead8484cadf0843d5d9707ae1173f31e1 Mon Sep 17 00:00:00 2001
From: Menglong Dong <imagedong@tencent.com>
Date: Sun, 17 Oct 2021 20:04:02 +0800
Subject: [PATCH 1151/4878] workqueue: make sysfs of unbound kworker cpumask
 more clever

[ Upstream commit d25302e46592c97d29f70ccb1be558df31a9a360 ]

Some unfriendly component, such as dpdk, write the same mask to
unbound kworker cpumask again and again. Every time it write to
this interface some work is queue to cpu, even though the mask
is same with the original mask.

So, fix it by return success and do nothing if the cpumask is
equal with the old one.

Signed-off-by: Mengen Sun <mengensun@tencent.com>
Signed-off-by: Menglong Dong <imagedong@tencent.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/workqueue.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 4cb622b2661b5..d02073b9d56e2 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -5326,9 +5326,6 @@ int workqueue_set_unbound_cpumask(cpumask_var_t cpumask)
 	int ret = -EINVAL;
 	cpumask_var_t saved_cpumask;
 
-	if (!zalloc_cpumask_var(&saved_cpumask, GFP_KERNEL))
-		return -ENOMEM;
-
 	/*
 	 * Not excluding isolated cpus on purpose.
 	 * If the user wishes to include them, we allow that.
@@ -5336,6 +5333,15 @@ int workqueue_set_unbound_cpumask(cpumask_var_t cpumask)
 	cpumask_and(cpumask, cpumask, cpu_possible_mask);
 	if (!cpumask_empty(cpumask)) {
 		apply_wqattrs_lock();
+		if (cpumask_equal(cpumask, wq_unbound_cpumask)) {
+			ret = 0;
+			goto out_unlock;
+		}
+
+		if (!zalloc_cpumask_var(&saved_cpumask, GFP_KERNEL)) {
+			ret = -ENOMEM;
+			goto out_unlock;
+		}
 
 		/* save the old wq_unbound_cpumask. */
 		cpumask_copy(saved_cpumask, wq_unbound_cpumask);
@@ -5348,10 +5354,11 @@ int workqueue_set_unbound_cpumask(cpumask_var_t cpumask)
 		if (ret < 0)
 			cpumask_copy(wq_unbound_cpumask, saved_cpumask);
 
+		free_cpumask_var(saved_cpumask);
+out_unlock:
 		apply_wqattrs_unlock();
 	}
 
-	free_cpumask_var(saved_cpumask);
 	return ret;
 }
 
-- 
GitLab


From ea7f8803a3144fdbb22257c7a501ee7b3caa8009 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Wed, 13 Oct 2021 21:52:17 -0700
Subject: [PATCH 1152/4878] tracing/cfi: Fix cmp_entries_* functions signature
 mismatch

[ Upstream commit 7ce1bb83a14019f8c396d57ec704d19478747716 ]

If CONFIG_CFI_CLANG=y, attempting to read an event histogram will cause
the kernel to panic due to failed CFI check.

    1. echo 'hist:keys=common_pid' >> events/sched/sched_switch/trigger
    2. cat events/sched/sched_switch/hist
    3. kernel panics on attempting to read hist

This happens because the sort() function expects a generic
int (*)(const void *, const void *) pointer for the compare function.
To prevent this CFI failure, change tracing map cmp_entries_* function
signatures to match this.

Also, fix the build error reported by the kernel test robot [1].

[1] https://lore.kernel.org/r/202110141140.zzi4dRh4-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211014045217.3265162-1-kaleshsingh@google.com

Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/tracing_map.c | 40 ++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c
index 4b50fc0cb12c7..d63e51dde0d24 100644
--- a/kernel/trace/tracing_map.c
+++ b/kernel/trace/tracing_map.c
@@ -834,29 +834,35 @@ int tracing_map_init(struct tracing_map *map)
 	return err;
 }
 
-static int cmp_entries_dup(const struct tracing_map_sort_entry **a,
-			   const struct tracing_map_sort_entry **b)
+static int cmp_entries_dup(const void *A, const void *B)
 {
+	const struct tracing_map_sort_entry *a, *b;
 	int ret = 0;
 
-	if (memcmp((*a)->key, (*b)->key, (*a)->elt->map->key_size))
+	a = *(const struct tracing_map_sort_entry **)A;
+	b = *(const struct tracing_map_sort_entry **)B;
+
+	if (memcmp(a->key, b->key, a->elt->map->key_size))
 		ret = 1;
 
 	return ret;
 }
 
-static int cmp_entries_sum(const struct tracing_map_sort_entry **a,
-			   const struct tracing_map_sort_entry **b)
+static int cmp_entries_sum(const void *A, const void *B)
 {
 	const struct tracing_map_elt *elt_a, *elt_b;
+	const struct tracing_map_sort_entry *a, *b;
 	struct tracing_map_sort_key *sort_key;
 	struct tracing_map_field *field;
 	tracing_map_cmp_fn_t cmp_fn;
 	void *val_a, *val_b;
 	int ret = 0;
 
-	elt_a = (*a)->elt;
-	elt_b = (*b)->elt;
+	a = *(const struct tracing_map_sort_entry **)A;
+	b = *(const struct tracing_map_sort_entry **)B;
+
+	elt_a = a->elt;
+	elt_b = b->elt;
 
 	sort_key = &elt_a->map->sort_key;
 
@@ -873,18 +879,21 @@ static int cmp_entries_sum(const struct tracing_map_sort_entry **a,
 	return ret;
 }
 
-static int cmp_entries_key(const struct tracing_map_sort_entry **a,
-			   const struct tracing_map_sort_entry **b)
+static int cmp_entries_key(const void *A, const void *B)
 {
 	const struct tracing_map_elt *elt_a, *elt_b;
+	const struct tracing_map_sort_entry *a, *b;
 	struct tracing_map_sort_key *sort_key;
 	struct tracing_map_field *field;
 	tracing_map_cmp_fn_t cmp_fn;
 	void *val_a, *val_b;
 	int ret = 0;
 
-	elt_a = (*a)->elt;
-	elt_b = (*b)->elt;
+	a = *(const struct tracing_map_sort_entry **)A;
+	b = *(const struct tracing_map_sort_entry **)B;
+
+	elt_a = a->elt;
+	elt_b = b->elt;
 
 	sort_key = &elt_a->map->sort_key;
 
@@ -989,10 +998,8 @@ static void sort_secondary(struct tracing_map *map,
 			   struct tracing_map_sort_key *primary_key,
 			   struct tracing_map_sort_key *secondary_key)
 {
-	int (*primary_fn)(const struct tracing_map_sort_entry **,
-			  const struct tracing_map_sort_entry **);
-	int (*secondary_fn)(const struct tracing_map_sort_entry **,
-			    const struct tracing_map_sort_entry **);
+	int (*primary_fn)(const void *, const void *);
+	int (*secondary_fn)(const void *, const void *);
 	unsigned i, start = 0, n_sub = 1;
 
 	if (is_key(map, primary_key->field_idx))
@@ -1061,8 +1068,7 @@ int tracing_map_sort_entries(struct tracing_map *map,
 			     unsigned int n_sort_keys,
 			     struct tracing_map_sort_entry ***sort_entries)
 {
-	int (*cmp_entries_fn)(const struct tracing_map_sort_entry **,
-			      const struct tracing_map_sort_entry **);
+	int (*cmp_entries_fn)(const void *, const void *);
 	struct tracing_map_sort_entry *sort_entry, **entries;
 	int i, n_entries, ret;
 
-- 
GitLab


From 16c2dd0ab5c24a124c92ab4b730073ffa3d9b952 Mon Sep 17 00:00:00 2001
From: Ryder Lee <ryder.lee@mediatek.com>
Date: Wed, 14 Jul 2021 15:56:10 +0800
Subject: [PATCH 1153/4878] mt76: mt7915: fix an off-by-one bound check

[ Upstream commit d45dac0732a287fc371a23f257cce04e65627947 ]

The bounds check on datalen is off-by-one, so fix it.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index ea71409751519..7c2d09a64882e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -830,7 +830,7 @@ static void mt7915_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
 
 	elem = ieee80211_bss_get_elem(bss, WLAN_EID_EXT_CAPABILITY);
 
-	if (!elem || elem->datalen < 10 ||
+	if (!elem || elem->datalen <= 10 ||
 	    !(elem->data[10] &
 	      WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT))
 		data->tolerated = false;
-- 
GitLab


From 451cef276fe48fa43625654f07fc6f6db11746c9 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Sat, 16 Oct 2021 04:02:59 +0000
Subject: [PATCH 1154/4878] mwl8k: Fix use-after-free in
 mwl8k_fw_state_machine()

[ Upstream commit 257051a235c17e33782b6e24a4b17f2d7915aaec ]

When the driver fails to request the firmware, it calls its error
handler. In the error handler, the driver detaches device from driver
first before releasing the firmware, which can cause a use-after-free bug.

Fix this by releasing firmware first.

The following log reveals it:

[    9.007301 ] BUG: KASAN: use-after-free in mwl8k_fw_state_machine+0x320/0xba0
[    9.010143 ] Workqueue: events request_firmware_work_func
[    9.010830 ] Call Trace:
[    9.010830 ]  dump_stack_lvl+0xa8/0xd1
[    9.010830 ]  print_address_description+0x87/0x3b0
[    9.010830 ]  kasan_report+0x172/0x1c0
[    9.010830 ]  ? mutex_unlock+0xd/0x10
[    9.010830 ]  ? mwl8k_fw_state_machine+0x320/0xba0
[    9.010830 ]  ? mwl8k_fw_state_machine+0x320/0xba0
[    9.010830 ]  __asan_report_load8_noabort+0x14/0x20
[    9.010830 ]  mwl8k_fw_state_machine+0x320/0xba0
[    9.010830 ]  ? mwl8k_load_firmware+0x5f0/0x5f0
[    9.010830 ]  request_firmware_work_func+0x172/0x250
[    9.010830 ]  ? read_lock_is_recursive+0x20/0x20
[    9.010830 ]  ? process_one_work+0x7a1/0x1100
[    9.010830 ]  ? request_firmware_nowait+0x460/0x460
[    9.010830 ]  ? __this_cpu_preempt_check+0x13/0x20
[    9.010830 ]  process_one_work+0x9bb/0x1100

Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634356979-6211-1-git-send-email-zheyuma97@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwl8k.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwl8k.c b/drivers/net/wireless/marvell/mwl8k.c
index 27b7d4b779e0b..dc91ac8cbd48b 100644
--- a/drivers/net/wireless/marvell/mwl8k.c
+++ b/drivers/net/wireless/marvell/mwl8k.c
@@ -5796,8 +5796,8 @@ static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
 fail:
 	priv->fw_state = FW_STATE_ERROR;
 	complete(&priv->firmware_loading_complete);
-	device_release_driver(&priv->pdev->dev);
 	mwl8k_release_firmware(priv);
+	device_release_driver(&priv->pdev->dev);
 }
 
 #define MAX_RESTART_ATTEMPTS 1
-- 
GitLab


From 49cc377654d9b59a1356db000472eee2007b4162 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 20 Oct 2021 08:21:40 -0600
Subject: [PATCH 1155/4878] block: remove inaccurate requeue check

[ Upstream commit 037057a5a979c7eeb2ee5d12cf4c24b805192c75 ]

This check is meant to catch cases where a requeue is attempted on a
request that is still inserted. It's never really been useful to catch any
misuse, and now it's actively wrong. Outside of that, this should not be a
BUG_ON() to begin with.

Remove the check as it's now causing active harm, as requeue off the plug
path will trigger it even though the request state is just fine.

Reported-by: Yi Zhang <yi.zhang@redhat.com>
Link: https://lore.kernel.org/linux-block/CAHj4cs80zAUc2grnCZ015-2Rvd-=gXRfB_dFKy=RTm+wRo09HQ@mail.gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-mq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index e4422a09b1265..15a11a217cd03 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -774,7 +774,6 @@ void blk_mq_requeue_request(struct request *rq, bool kick_requeue_list)
 	/* this request will be re-inserted to io scheduler queue */
 	blk_mq_sched_requeue_request(rq);
 
-	BUG_ON(!list_empty(&rq->queuelist));
 	blk_mq_add_to_requeue_list(rq, true, kick_requeue_list);
 }
 EXPORT_SYMBOL(blk_mq_requeue_request);
-- 
GitLab


From 1a10bf4c9dd3ba8937d108b615ad5efcfd632e3a Mon Sep 17 00:00:00 2001
From: Michael Tretter <m.tretter@pengutronix.de>
Date: Wed, 8 Sep 2021 14:03:10 +0100
Subject: [PATCH 1156/4878] media: allegro: ignore interrupt if mailbox is not
 initialized

[ Upstream commit 1ecda6393db4be44aba27a243e648dc98c9b92e3 ]

The mailbox is initialized after the interrupt handler is installed. As
the firmware is loaded and started even later, it should not happen that
the interrupt occurs without the mailbox being initialized.

As the Linux Driver Verification project (linuxtesting.org) keeps
reporting this as an error, add a check to ignore interrupts before the
mailbox is initialized to fix this potential null pointer dereference.

Reported-by: Yuri Savinykh <s02190703@gse.cs.msu.ru>
Reported-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/allegro-dvt/allegro-core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/staging/media/allegro-dvt/allegro-core.c b/drivers/staging/media/allegro-dvt/allegro-core.c
index 640451134072b..28b6ba895ccd5 100644
--- a/drivers/staging/media/allegro-dvt/allegro-core.c
+++ b/drivers/staging/media/allegro-dvt/allegro-core.c
@@ -1802,6 +1802,15 @@ static irqreturn_t allegro_irq_thread(int irq, void *data)
 {
 	struct allegro_dev *dev = data;
 
+	/*
+	 * The firmware is initialized after the mailbox is setup. We further
+	 * check the AL5_ITC_CPU_IRQ_STA register, if the firmware actually
+	 * triggered the interrupt. Although this should not happen, make sure
+	 * that we ignore interrupts, if the mailbox is not initialized.
+	 */
+	if (!dev->mbox_status)
+		return IRQ_NONE;
+
 	allegro_mbox_notify(dev->mbox_status);
 
 	return IRQ_HANDLED;
-- 
GitLab


From e73574f7bc9b83f290fbc7760a9153e05133cbf3 Mon Sep 17 00:00:00 2001
From: Israel Rukshin <israelr@nvidia.com>
Date: Wed, 6 Oct 2021 08:09:43 +0000
Subject: [PATCH 1157/4878] nvmet: fix use-after-free when a port is removed

[ Upstream commit e3e19dcc4c416d65f99f13d55be2b787f8d0050e ]

When a port is removed through configfs, any connected controllers
are starting teardown flow asynchronously and can still send commands.
This causes a use-after-free bug for any command that dereferences
req->port (like in nvmet_parse_io_cmd).

To fix this, wait for all the teardown scheduled works to complete
(like release_work at rdma/tcp drivers). This ensures there are no
active controllers when the port is eventually removed.

Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/configfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index 37e1d7784e175..9aed5cc710960 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -1462,6 +1462,8 @@ static void nvmet_port_release(struct config_item *item)
 {
 	struct nvmet_port *port = to_nvmet_port(item);
 
+	/* Let inflight controllers teardown complete */
+	flush_scheduled_work();
 	list_del(&port->global_entry);
 
 	kfree(port->ana_state);
-- 
GitLab


From 2659d8213d886bfe6f37abc2661a8404c36d5a32 Mon Sep 17 00:00:00 2001
From: Israel Rukshin <israelr@nvidia.com>
Date: Wed, 6 Oct 2021 08:09:44 +0000
Subject: [PATCH 1158/4878] nvmet-rdma: fix use-after-free when a port is
 removed

[ Upstream commit fcf73a804c7d6bbf0ea63531c6122aa363852e04 ]

When removing a port, all its controllers are being removed, but there
are queues on the port that doesn't belong to any controller (during
connection time). This causes a use-after-free bug for any command
that dereferences req->port (like in nvmet_alloc_ctrl). Those queues
should be destroyed before freeing the port via configfs. Destroy the
remaining queues after the RDMA-CM was destroyed guarantees that no
new queue will be created.

Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/rdma.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 7d607f435e366..6d5552f2f184a 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -1819,12 +1819,36 @@ restart:
 	mutex_unlock(&nvmet_rdma_queue_mutex);
 }
 
+static void nvmet_rdma_destroy_port_queues(struct nvmet_rdma_port *port)
+{
+	struct nvmet_rdma_queue *queue, *tmp;
+	struct nvmet_port *nport = port->nport;
+
+	mutex_lock(&nvmet_rdma_queue_mutex);
+	list_for_each_entry_safe(queue, tmp, &nvmet_rdma_queue_list,
+				 queue_list) {
+		if (queue->port != nport)
+			continue;
+
+		list_del_init(&queue->queue_list);
+		__nvmet_rdma_queue_disconnect(queue);
+	}
+	mutex_unlock(&nvmet_rdma_queue_mutex);
+}
+
 static void nvmet_rdma_disable_port(struct nvmet_rdma_port *port)
 {
 	struct rdma_cm_id *cm_id = xchg(&port->cm_id, NULL);
 
 	if (cm_id)
 		rdma_destroy_id(cm_id);
+
+	/*
+	 * Destroy the remaining queues, which are not belong to any
+	 * controller yet. Do it here after the RDMA-CM was destroyed
+	 * guarantees that no new queue will be created.
+	 */
+	nvmet_rdma_destroy_port_queues(port);
 }
 
 static int nvmet_rdma_enable_port(struct nvmet_rdma_port *port)
-- 
GitLab


From 82327823f34e920cfb27c796c82ff72a6554cebf Mon Sep 17 00:00:00 2001
From: Israel Rukshin <israelr@nvidia.com>
Date: Wed, 6 Oct 2021 08:09:45 +0000
Subject: [PATCH 1159/4878] nvmet-tcp: fix use-after-free when a port is
 removed

[ Upstream commit 2351ead99ce9164fb42555aee3f96af84c4839e9 ]

When removing a port, all its controllers are being removed, but there
are queues on the port that doesn't belong to any controller (during
connection time). This causes a use-after-free bug for any command
that dereferences req->port (like in nvmet_alloc_ctrl). Those queues
should be destroyed before freeing the port via configfs. Destroy
the remaining queues after the accept_work was cancelled guarantees
that no new queue will be created.

Signed-off-by: Israel Rukshin <israelr@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/tcp.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 58dc517fe8678..1251fd6e92780 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -1708,6 +1708,17 @@ err_port:
 	return ret;
 }
 
+static void nvmet_tcp_destroy_port_queues(struct nvmet_tcp_port *port)
+{
+	struct nvmet_tcp_queue *queue;
+
+	mutex_lock(&nvmet_tcp_queue_mutex);
+	list_for_each_entry(queue, &nvmet_tcp_queue_list, queue_list)
+		if (queue->port == port)
+			kernel_sock_shutdown(queue->sock, SHUT_RDWR);
+	mutex_unlock(&nvmet_tcp_queue_mutex);
+}
+
 static void nvmet_tcp_remove_port(struct nvmet_port *nport)
 {
 	struct nvmet_tcp_port *port = nport->priv;
@@ -1717,6 +1728,11 @@ static void nvmet_tcp_remove_port(struct nvmet_port *nport)
 	port->sock->sk->sk_user_data = NULL;
 	write_unlock_bh(&port->sock->sk->sk_callback_lock);
 	cancel_work_sync(&port->accept_work);
+	/*
+	 * Destroy the remaining queues, which are not belong to any
+	 * controller yet.
+	 */
+	nvmet_tcp_destroy_port_queues(port);
 
 	sock_release(port->sock);
 	kfree(port);
-- 
GitLab


From 7a0b68eecb5b557241597f9a887b99d9821916d5 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 20 Oct 2021 07:59:10 +0200
Subject: [PATCH 1160/4878] nvme: drop scan_lock and always kick requeue list
 when removing namespaces

[ Upstream commit 2b81a5f015199f3d585ce710190a9e87714d3c1e ]

When reading the partition table on initial scan hits an I/O error the
I/O will hang with the scan_mutex held:

[<0>] do_read_cache_page+0x49b/0x790
[<0>] read_part_sector+0x39/0xe0
[<0>] read_lba+0xf9/0x1d0
[<0>] efi_partition+0xf1/0x7f0
[<0>] bdev_disk_changed+0x1ee/0x550
[<0>] blkdev_get_whole+0x81/0x90
[<0>] blkdev_get_by_dev+0x128/0x2e0
[<0>] device_add_disk+0x377/0x3c0
[<0>] nvme_mpath_set_live+0x130/0x1b0 [nvme_core]
[<0>] nvme_mpath_add_disk+0x150/0x160 [nvme_core]
[<0>] nvme_alloc_ns+0x417/0x950 [nvme_core]
[<0>] nvme_validate_or_alloc_ns+0xe9/0x1e0 [nvme_core]
[<0>] nvme_scan_work+0x168/0x310 [nvme_core]
[<0>] process_one_work+0x231/0x420

and trying to delete the controller will deadlock as it tries to grab
the scan mutex:

[<0>] nvme_mpath_clear_ctrl_paths+0x25/0x80 [nvme_core]
[<0>] nvme_remove_namespaces+0x31/0xf0 [nvme_core]
[<0>] nvme_do_delete_ctrl+0x4b/0x80 [nvme_core]

As we're now properly ordering the namespace list there is no need to
hold the scan_mutex in nvme_mpath_clear_ctrl_paths() anymore.
And we always need to kick the requeue list as the path will be marked
as unusable and I/O will be requeued _without_ a current path.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/multipath.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 46a1e24ba6f47..18a756444d5a9 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -135,13 +135,12 @@ void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl)
 {
 	struct nvme_ns *ns;
 
-	mutex_lock(&ctrl->scan_lock);
 	down_read(&ctrl->namespaces_rwsem);
-	list_for_each_entry(ns, &ctrl->namespaces, list)
-		if (nvme_mpath_clear_current_path(ns))
-			kblockd_schedule_work(&ns->head->requeue_work);
+	list_for_each_entry(ns, &ctrl->namespaces, list) {
+		nvme_mpath_clear_current_path(ns);
+		kblockd_schedule_work(&ns->head->requeue_work);
+	}
 	up_read(&ctrl->namespaces_rwsem);
-	mutex_unlock(&ctrl->scan_lock);
 }
 
 static bool nvme_path_is_disabled(struct nvme_ns *ns)
-- 
GitLab


From 9f4bd00a6ec6550515ffce7b91488f899a96d2bc Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Wed, 13 Oct 2021 20:19:14 +0800
Subject: [PATCH 1161/4878] PM: hibernate: Get block device exclusively in
 swsusp_check()

[ Upstream commit 39fbef4b0f77f9c89c8f014749ca533643a37c9f ]

The following kernel crash can be triggered:

[   89.266592] ------------[ cut here ]------------
[   89.267427] kernel BUG at fs/buffer.c:3020!
[   89.268264] invalid opcode: 0000 [#1] SMP KASAN PTI
[   89.269116] CPU: 7 PID: 1750 Comm: kmmpd-loop0 Not tainted 5.10.0-862.14.0.6.x86_64-08610-gc932cda3cef4-dirty #20
[   89.273169] RIP: 0010:submit_bh_wbc.isra.0+0x538/0x6d0
[   89.277157] RSP: 0018:ffff888105ddfd08 EFLAGS: 00010246
[   89.278093] RAX: 0000000000000005 RBX: ffff888124231498 RCX: ffffffffb2772612
[   89.279332] RDX: 1ffff11024846293 RSI: 0000000000000008 RDI: ffff888124231498
[   89.280591] RBP: ffff8881248cc000 R08: 0000000000000001 R09: ffffed1024846294
[   89.281851] R10: ffff88812423149f R11: ffffed1024846293 R12: 0000000000003800
[   89.283095] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8881161f7000
[   89.284342] FS:  0000000000000000(0000) GS:ffff88839b5c0000(0000) knlGS:0000000000000000
[   89.285711] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.286701] CR2: 00007f166ebc01a0 CR3: 0000000435c0e000 CR4: 00000000000006e0
[   89.287919] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   89.289138] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   89.290368] Call Trace:
[   89.290842]  write_mmp_block+0x2ca/0x510
[   89.292218]  kmmpd+0x433/0x9a0
[   89.294902]  kthread+0x2dd/0x3e0
[   89.296268]  ret_from_fork+0x22/0x30
[   89.296906] Modules linked in:

by running the following commands:

 1. mkfs.ext4 -O mmp  /dev/sda -b 1024
 2. mount /dev/sda /home/test
 3. echo "/dev/sda" > /sys/power/resume

That happens because swsusp_check() calls set_blocksize() on the
target partition which confuses the file system:

       Thread1                       Thread2
mount /dev/sda /home/test
get s_mmp_bh  --> has mapped flag
start kmmpd thread
				echo "/dev/sda" > /sys/power/resume
				  resume_store
				    software_resume
				      swsusp_check
				        set_blocksize
					  truncate_inode_pages_range
					    truncate_cleanup_page
					      block_invalidatepage
					        discard_buffer --> clean mapped flag
write_mmp_block
  submit_bh
    submit_bh_wbc
      BUG_ON(!buffer_mapped(bh))

To address this issue, modify swsusp_check() to open the target block
device with exclusive access.

Signed-off-by: Ye Bin <yebin10@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/power/swap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 72e33054a2e1b..c9126606fa6f4 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -1521,9 +1521,10 @@ end:
 int swsusp_check(void)
 {
 	int error;
+	void *holder;
 
 	hib_resume_bdev = blkdev_get_by_dev(swsusp_resume_device,
-					    FMODE_READ, NULL);
+					    FMODE_READ | FMODE_EXCL, &holder);
 	if (!IS_ERR(hib_resume_bdev)) {
 		set_blocksize(hib_resume_bdev, PAGE_SIZE);
 		clear_page(swsusp_header);
@@ -1545,7 +1546,7 @@ int swsusp_check(void)
 
 put:
 		if (error)
-			blkdev_put(hib_resume_bdev, FMODE_READ);
+			blkdev_put(hib_resume_bdev, FMODE_READ | FMODE_EXCL);
 		else
 			pr_debug("Image signature found, resuming\n");
 	} else {
-- 
GitLab


From d6dca066fc4f8c068e968dc365f6cd1aa9c6baed Mon Sep 17 00:00:00 2001
From: Shuah Khan <skhan@linuxfoundation.org>
Date: Thu, 21 Oct 2021 11:56:03 -0600
Subject: [PATCH 1162/4878] selftests: kvm: fix mismatched fclose() after
 popen()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c3867ab5924b7a9a0b4a117902a08669d8be7c21 ]

get_warnings_count() does fclose() using File * returned from popen().
Fix it to call pclose() as it should.

tools/testing/selftests/kvm/x86_64/mmio_warning_test
x86_64/mmio_warning_test.c: In function ‘get_warnings_count’:
x86_64/mmio_warning_test.c:87:9: warning: ‘fclose’ called on pointer returned from a mismatched allocation function [-Wmismatched-dealloc]
   87 |         fclose(f);
      |         ^~~~~~~~~
x86_64/mmio_warning_test.c:84:13: note: returned from ‘popen’
   84 |         f = popen("dmesg | grep \"WARNING:\" | wc -l", "r");
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
index 8039e1eff9388..9f55ccd169a13 100644
--- a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
+++ b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c
@@ -84,7 +84,7 @@ int get_warnings_count(void)
 	f = popen("dmesg | grep \"WARNING:\" | wc -l", "r");
 	if (fscanf(f, "%d", &warnings) < 1)
 		warnings = 0;
-	fclose(f);
+	pclose(f);
 
 	return warnings;
 }
-- 
GitLab


From e658d59f0ee4890446e457d8eec1f27bcb0643d0 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Thu, 21 Oct 2021 13:41:30 +0200
Subject: [PATCH 1163/4878] selftests/bpf: Fix perf_buffer test on system with
 offline cpus

[ Upstream commit d4121376ac7a9c81a696d7558789b2f29ef3574e ]

The perf_buffer fails on system with offline cpus:

  # test_progs -t perf_buffer
  test_perf_buffer:PASS:nr_cpus 0 nsec
  test_perf_buffer:PASS:nr_on_cpus 0 nsec
  test_perf_buffer:PASS:skel_load 0 nsec
  test_perf_buffer:PASS:attach_kprobe 0 nsec
  test_perf_buffer:PASS:perf_buf__new 0 nsec
  test_perf_buffer:PASS:epoll_fd 0 nsec
  skipping offline CPU #24
  skipping offline CPU #25
  skipping offline CPU #26
  skipping offline CPU #27
  skipping offline CPU #28
  skipping offline CPU #29
  skipping offline CPU #30
  skipping offline CPU #31
  test_perf_buffer:PASS:perf_buffer__poll 0 nsec
  test_perf_buffer:PASS:seen_cpu_cnt 0 nsec
  test_perf_buffer:FAIL:buf_cnt got 24, expected 32
  Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED

Changing the test to check online cpus instead of possible.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20211021114132.8196-2-jolsa@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/prog_tests/perf_buffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
index ca9f0895ec84e..8d75475408f57 100644
--- a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
+++ b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
@@ -107,8 +107,8 @@ void test_perf_buffer(void)
 		  "expect %d, seen %d\n", nr_on_cpus, CPU_COUNT(&cpu_seen)))
 		goto out_free_pb;
 
-	if (CHECK(perf_buffer__buffer_cnt(pb) != nr_cpus, "buf_cnt",
-		  "got %zu, expected %d\n", perf_buffer__buffer_cnt(pb), nr_cpus))
+	if (CHECK(perf_buffer__buffer_cnt(pb) != nr_on_cpus, "buf_cnt",
+		  "got %zu, expected %d\n", perf_buffer__buffer_cnt(pb), nr_on_cpus))
 		goto out_close;
 
 	for (i = 0; i < nr_cpus; i++) {
-- 
GitLab


From 32a9a8fdbab717abb6fc51647e00f764320460af Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Sun, 17 Oct 2021 11:43:40 +0300
Subject: [PATCH 1164/4878] iwlwifi: mvm: disable RX-diversity in powersave

[ Upstream commit e5322b9ab5f63536c41301150b7ce64605ce52cc ]

Just like we have default SMPS mode as dynamic in powersave,
we should not enable RX-diversity in powersave, to reduce
power consumption when connected to a non-MIMO AP.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211017113927.fc896bc5cdaa.I1d11da71b8a5cbe921a37058d5f578f1b14a2023@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/utils.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index 3123036978a59..caf38ef64d3ce 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -741,6 +741,9 @@ bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
+	if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
+		return false;
+
 	if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 		return false;
 
-- 
GitLab


From c11aecbe0542afa4832dbb9b48d1c45064b2cb1b Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: Tue, 19 Oct 2021 20:54:31 +0900
Subject: [PATCH 1165/4878] smackfs: use __GFP_NOFAIL for smk_cipso_doi()

[ Upstream commit f91488ee15bd3cac467e2d6a361fc2d34d1052ae ]

syzbot is reporting kernel panic at smk_cipso_doi() due to memory
allocation fault injection [1]. The reason for need to use panic() was
not explained. But since no fix was proposed for 18 months, for now
let's use __GFP_NOFAIL for utilizing syzbot resource on other bugs.

Link: https://syzkaller.appspot.com/bug?extid=89731ccb6fec15ce1c22 [1]
Reported-by: syzbot <syzbot+89731ccb6fec15ce1c22@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/smack/smackfs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index e33f98d25fc02..ca0daba11f814 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -693,9 +693,7 @@ static void smk_cipso_doi(void)
 		printk(KERN_WARNING "%s:%d remove rc = %d\n",
 		       __func__, __LINE__, rc);
 
-	doip = kmalloc(sizeof(struct cipso_v4_doi), GFP_KERNEL);
-	if (doip == NULL)
-		panic("smack:  Failed to initialize cipso DOI.\n");
+	doip = kmalloc(sizeof(struct cipso_v4_doi), GFP_KERNEL | __GFP_NOFAIL);
 	doip->map.std = NULL;
 	doip->doi = smk_cipso_doi_value;
 	doip->type = CIPSO_V4_MAP_PASS;
-- 
GitLab


From 25a45d399996bfbcb5c995b23d03f8df5f3bd6f9 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Thu, 21 Oct 2021 09:55:17 +0900
Subject: [PATCH 1166/4878] ARM: clang: Do not rely on lr register for
 stacktrace

[ Upstream commit b3ea5d56f212ad81328c82454829a736197ebccc ]

Currently the stacktrace on clang compiled arm kernel uses the 'lr'
register to find the first frame address from pt_regs. However, that
is wrong after calling another function, because the 'lr' register
is used by 'bl' instruction and never be recovered.

As same as gcc arm kernel, directly use the frame pointer (r11) of
the pt_regs to find the first frame address.

Note that this fixes kretprobe stacktrace issue only with
CONFIG_UNWINDER_FRAME_POINTER=y. For the CONFIG_UNWINDER_ARM,
we need another fix.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/kernel/stacktrace.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index 76ea4178a55cb..db798eac74315 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -54,8 +54,7 @@ int notrace unwind_frame(struct stackframe *frame)
 
 	frame->sp = frame->fp;
 	frame->fp = *(unsigned long *)(fp);
-	frame->pc = frame->lr;
-	frame->lr = *(unsigned long *)(fp + 4);
+	frame->pc = *(unsigned long *)(fp + 4);
 #else
 	/* check current frame pointer is within bounds */
 	if (fp < low + 12 || fp > high - 4)
-- 
GitLab


From 9ceac307b58ed35ba85fad928ca48119acd50a41 Mon Sep 17 00:00:00 2001
From: Stephen Suryaputra <ssuryaextr@gmail.com>
Date: Wed, 20 Oct 2021 16:06:18 -0400
Subject: [PATCH 1167/4878] gre/sit: Don't generate link-local addr if
 addr_gen_mode is IN6_ADDR_GEN_MODE_NONE

[ Upstream commit 61e18ce7348bfefb5688a8bcd4b4d6b37c0f9b2a ]

When addr_gen_mode is set to IN6_ADDR_GEN_MODE_NONE, the link-local addr
should not be generated. But it isn't the case for GRE (as well as GRE6)
and SIT tunnels. Make it so that tunnels consider the addr_gen_mode,
especially for IN6_ADDR_GEN_MODE_NONE.

Do this in add_v4_addrs() to cover both GRE and SIT only if the addr
scope is link.

Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Acked-by: Antonio Quartulli <a@unstable.cc>
Link: https://lore.kernel.org/r/20211020200618.467342-1-ssuryaextr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/addrconf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 884d430e23cb3..29526937077b3 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3097,6 +3097,9 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 	memcpy(&addr.s6_addr32[3], idev->dev->dev_addr, 4);
 
 	if (idev->dev->flags&IFF_POINTOPOINT) {
+		if (idev->cnf.addr_gen_mode == IN6_ADDR_GEN_MODE_NONE)
+			return;
+
 		addr.s6_addr32[0] = htonl(0xfe800000);
 		scope = IFA_LINK;
 		plen = 64;
-- 
GitLab


From 16a7981188a33bb31d5dd579920f18fe895be958 Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Mon, 11 Oct 2021 20:53:02 +0200
Subject: [PATCH 1168/4878] gfs2: Cancel remote delete work asynchronously

[ Upstream commit 486408d690e130c3adacf816754b97558d715f46 ]

In gfs2_inode_lookup and gfs2_create_inode, we're calling
gfs2_cancel_delete_work which currently cancels any remote delete work
(delete_work_func) synchronously.  This means that if the work is
currently running, it will wait for it to finish.  We're doing this to
pevent a previous instance of an inode from having any influence on the
next instance.

However, delete_work_func uses gfs2_inode_lookup internally, and we can
end up in a deadlock when delete_work_func gets interrupted at the wrong
time.  For example,

  (1) An inode's iopen glock has delete work queued, but the inode
      itself has been evicted from the inode cache.

  (2) The delete work is preempted before reaching gfs2_inode_lookup.

  (3) Another process recreates the inode (gfs2_create_inode).  It tries
      to cancel any outstanding delete work, which blocks waiting for
      the ongoing delete work to finish.

  (4) The delete work calls gfs2_inode_lookup, which blocks waiting for
      gfs2_create_inode to instantiate and unlock the new inode =>
      deadlock.

It turns out that when the delete work notices that its inode has been
re-instantiated, it will do nothing.  This means that it's safe to
cancel the delete work asynchronously.  This prevents the kind of
deadlock described above.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/glock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 03c3407c8e26f..533adcd480310 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1911,7 +1911,7 @@ bool gfs2_queue_delete_work(struct gfs2_glock *gl, unsigned long delay)
 
 void gfs2_cancel_delete_work(struct gfs2_glock *gl)
 {
-	if (cancel_delayed_work_sync(&gl->gl_delete)) {
+	if (cancel_delayed_work(&gl->gl_delete)) {
 		clear_bit(GLF_PENDING_DELETE, &gl->gl_flags);
 		gfs2_glock_put(gl);
 	}
-- 
GitLab


From b870d8a76c04bb6875c68c261f266a1fac2241a9 Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Thu, 7 Oct 2021 15:57:44 +0200
Subject: [PATCH 1169/4878] gfs2: Fix glock_hash_walk bugs

[ Upstream commit 7427f3bb49d81525b7dd1d0f7c5f6bbc752e6f0e ]

So far, glock_hash_walk took a reference on each glock it iterated over, and it
was the examiner's responsibility to drop those references.  Dropping the final
reference to a glock can sleep and the examiners are called in a RCU critical
section with spin locks held, so examiners that didn't need the extra reference
had to drop it asynchronously via gfs2_glock_queue_put or similar.  This wasn't
done correctly in thaw_glock which did call gfs2_glock_put, and not at all in
dump_glock_func.

Change glock_hash_walk to not take glock references at all.  That way, the
examiners that don't need them won't have to bother with slow asynchronous
puts, and the examiners that do need references can take them themselves.

Reported-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/glock.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 533adcd480310..dd052101e2266 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1885,10 +1885,10 @@ static void glock_hash_walk(glock_examiner examiner, const struct gfs2_sbd *sdp)
 	do {
 		rhashtable_walk_start(&iter);
 
-		while ((gl = rhashtable_walk_next(&iter)) && !IS_ERR(gl))
-			if (gl->gl_name.ln_sbd == sdp &&
-			    lockref_get_not_dead(&gl->gl_lockref))
+		while ((gl = rhashtable_walk_next(&iter)) && !IS_ERR(gl)) {
+			if (gl->gl_name.ln_sbd == sdp)
 				examiner(gl);
+		}
 
 		rhashtable_walk_stop(&iter);
 	} while (cond_resched(), gl == ERR_PTR(-EAGAIN));
@@ -1930,7 +1930,6 @@ static void flush_delete_work(struct gfs2_glock *gl)
 					   &gl->gl_delete, 0);
 		}
 	}
-	gfs2_glock_queue_work(gl, 0);
 }
 
 void gfs2_flush_delete_work(struct gfs2_sbd *sdp)
@@ -1947,10 +1946,10 @@ void gfs2_flush_delete_work(struct gfs2_sbd *sdp)
 
 static void thaw_glock(struct gfs2_glock *gl)
 {
-	if (!test_and_clear_bit(GLF_FROZEN, &gl->gl_flags)) {
-		gfs2_glock_put(gl);
+	if (!test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))
+		return;
+	if (!lockref_get_not_dead(&gl->gl_lockref))
 		return;
-	}
 	set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
 	gfs2_glock_queue_work(gl, 0);
 }
@@ -1966,9 +1965,12 @@ static void clear_glock(struct gfs2_glock *gl)
 	gfs2_glock_remove_from_lru(gl);
 
 	spin_lock(&gl->gl_lockref.lock);
-	if (gl->gl_state != LM_ST_UNLOCKED)
-		handle_callback(gl, LM_ST_UNLOCKED, 0, false);
-	__gfs2_glock_queue_work(gl, 0);
+	if (!__lockref_is_dead(&gl->gl_lockref)) {
+		gl->gl_lockref.count++;
+		if (gl->gl_state != LM_ST_UNLOCKED)
+			handle_callback(gl, LM_ST_UNLOCKED, 0, false);
+		__gfs2_glock_queue_work(gl, 0);
+	}
 	spin_unlock(&gl->gl_lockref.lock);
 }
 
-- 
GitLab


From b3ae170b8e3fb0b8a49f44911f4d700bb5a9d997 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:30:06 +0100
Subject: [PATCH 1170/4878] ARM: 9136/1: ARMv7-M uses BE-8, not BE-32

[ Upstream commit 345dac33f58894a56d17b92a41be10e16585ceff ]

When configuring the kernel for big-endian, we set either BE-8 or BE-32
based on the CPU architecture level. Until linux-4.4, we did not have
any ARMv7-M platform allowing big-endian builds, but now i.MX/Vybrid
is in that category, adn we get a build error because of this:

arch/arm/kernel/module-plts.c: In function 'get_module_plt':
arch/arm/kernel/module-plts.c:60:46: error: implicit declaration of function '__opcode_to_mem_thumb32' [-Werror=implicit-function-declaration]

This comes down to picking the wrong default, ARMv7-M uses BE8
like ARMv7-A does. Changing the default gets the kernel to compile
and presumably works.

https://lore.kernel.org/all/1455804123-2526139-2-git-send-email-arnd@arndb.de/

Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 02692fbe2db5c..423a97dd2f57c 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -753,7 +753,7 @@ config CPU_BIG_ENDIAN
 config CPU_ENDIAN_BE8
 	bool
 	depends on CPU_BIG_ENDIAN
-	default CPU_V6 || CPU_V6K || CPU_V7
+	default CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M
 	help
 	  Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors.
 
-- 
GitLab


From c2e5f43db0c116c91f545b317bef3f333bdc5301 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 25 Oct 2021 16:14:00 +0200
Subject: [PATCH 1171/4878] vrf: run conntrack only in context of lower/physdev
 for locally generated packets

[ Upstream commit 8c9c296adfae9ea05f655d69e9f6e13daa86fb4a ]

The VRF driver invokes netfilter for output+postrouting hooks so that users
can create rules that check for 'oif $vrf' rather than lower device name.

This is a problem when NAT rules are configured.

To avoid any conntrack involvement in round 1, tag skbs as 'untracked'
to prevent conntrack from picking them up.

This gets cleared before the packet gets handed to the ip stack so
conntrack will be active on the second iteration.

One remaining issue is that a rule like

  output ... oif $vrfname notrack

won't propagate to the second round because we can't tell
'notrack set via ruleset' and 'notrack set by vrf driver' apart.
However, this isn't a regression: the 'notrack' removal happens
instead of unconditional nf_reset_ct().
I'd also like to avoid leaking more vrf specific conditionals into the
netfilter infra.

For ingress, conntrack has already been done before the packet makes it
to the vrf driver, with this patch egress does connection tracking with
lower/physical device as well.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/vrf.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 2746f77745e4d..71902706234cc 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -34,6 +34,7 @@
 #include <net/l3mdev.h>
 #include <net/fib_rules.h>
 #include <net/netns/generic.h>
+#include <net/netfilter/nf_conntrack.h>
 
 #define DRV_NAME	"vrf"
 #define DRV_VERSION	"1.1"
@@ -423,12 +424,26 @@ static int vrf_local_xmit(struct sk_buff *skb, struct net_device *dev,
 	return NETDEV_TX_OK;
 }
 
+static void vrf_nf_set_untracked(struct sk_buff *skb)
+{
+	if (skb_get_nfct(skb) == 0)
+		nf_ct_set(skb, NULL, IP_CT_UNTRACKED);
+}
+
+static void vrf_nf_reset_ct(struct sk_buff *skb)
+{
+	if (skb_get_nfct(skb) == IP_CT_UNTRACKED)
+		nf_reset_ct(skb);
+}
+
 #if IS_ENABLED(CONFIG_IPV6)
 static int vrf_ip6_local_out(struct net *net, struct sock *sk,
 			     struct sk_buff *skb)
 {
 	int err;
 
+	vrf_nf_reset_ct(skb);
+
 	err = nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net,
 		      sk, skb, NULL, skb_dst(skb)->dev, dst_output);
 
@@ -508,6 +523,8 @@ static int vrf_ip_local_out(struct net *net, struct sock *sk,
 {
 	int err;
 
+	vrf_nf_reset_ct(skb);
+
 	err = nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, net, sk,
 		      skb, NULL, skb_dst(skb)->dev, dst_output);
 	if (likely(err == 1))
@@ -627,8 +644,7 @@ static void vrf_finish_direct(struct sk_buff *skb)
 		skb_pull(skb, ETH_HLEN);
 	}
 
-	/* reset skb device */
-	nf_reset_ct(skb);
+	vrf_nf_reset_ct(skb);
 }
 
 #if IS_ENABLED(CONFIG_IPV6)
@@ -642,7 +658,7 @@ static int vrf_finish_output6(struct net *net, struct sock *sk,
 	struct neighbour *neigh;
 	int ret;
 
-	nf_reset_ct(skb);
+	vrf_nf_reset_ct(skb);
 
 	skb->protocol = htons(ETH_P_IPV6);
 	skb->dev = dev;
@@ -753,6 +769,8 @@ static struct sk_buff *vrf_ip6_out_direct(struct net_device *vrf_dev,
 
 	skb->dev = vrf_dev;
 
+	vrf_nf_set_untracked(skb);
+
 	err = nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk,
 		      skb, NULL, vrf_dev, vrf_ip6_out_direct_finish);
 
@@ -860,7 +878,7 @@ static int vrf_finish_output(struct net *net, struct sock *sk, struct sk_buff *s
 	bool is_v6gw = false;
 	int ret = -EINVAL;
 
-	nf_reset_ct(skb);
+	vrf_nf_reset_ct(skb);
 
 	/* Be paranoid, rather than too clever. */
 	if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {
@@ -988,6 +1006,8 @@ static struct sk_buff *vrf_ip_out_direct(struct net_device *vrf_dev,
 
 	skb->dev = vrf_dev;
 
+	vrf_nf_set_untracked(skb);
+
 	err = nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, net, sk,
 		      skb, NULL, vrf_dev, vrf_ip_out_direct_finish);
 
-- 
GitLab


From 42d8c280dd65ec49ff5ceb6b9a1173dcbd8d7f95 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 25 Oct 2021 11:15:55 -0700
Subject: [PATCH 1172/4878] net: annotate data-race in neigh_output()

[ Upstream commit d18785e213866935b4c3dc0c33c3e18801ce0ce8 ]

neigh_output() reads n->nud_state and hh->hh_len locklessly.

This is fine, but we need to add annotations and document this.

We evaluate skip_cache first to avoid reading these fields
if the cache has to by bypassed.

syzbot report:

BUG: KCSAN: data-race in __neigh_event_send / ip_finish_output2

write to 0xffff88810798a885 of 1 bytes by interrupt on cpu 1:
 __neigh_event_send+0x40d/0xac0 net/core/neighbour.c:1128
 neigh_event_send include/net/neighbour.h:444 [inline]
 neigh_resolve_output+0x104/0x410 net/core/neighbour.c:1476
 neigh_output include/net/neighbour.h:510 [inline]
 ip_finish_output2+0x80a/0xaa0 net/ipv4/ip_output.c:221
 ip_finish_output+0x3b5/0x510 net/ipv4/ip_output.c:309
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip_output+0xf3/0x1a0 net/ipv4/ip_output.c:423
 dst_output include/net/dst.h:450 [inline]
 ip_local_out+0x164/0x220 net/ipv4/ip_output.c:126
 __ip_queue_xmit+0x9d3/0xa20 net/ipv4/ip_output.c:525
 ip_queue_xmit+0x34/0x40 net/ipv4/ip_output.c:539
 __tcp_transmit_skb+0x142a/0x1a00 net/ipv4/tcp_output.c:1405
 tcp_transmit_skb net/ipv4/tcp_output.c:1423 [inline]
 tcp_xmit_probe_skb net/ipv4/tcp_output.c:4011 [inline]
 tcp_write_wakeup+0x4a9/0x810 net/ipv4/tcp_output.c:4064
 tcp_send_probe0+0x2c/0x2b0 net/ipv4/tcp_output.c:4079
 tcp_probe_timer net/ipv4/tcp_timer.c:398 [inline]
 tcp_write_timer_handler+0x394/0x520 net/ipv4/tcp_timer.c:626
 tcp_write_timer+0xb9/0x180 net/ipv4/tcp_timer.c:642
 call_timer_fn+0x2e/0x1d0 kernel/time/timer.c:1421
 expire_timers+0x135/0x240 kernel/time/timer.c:1466
 __run_timers+0x368/0x430 kernel/time/timer.c:1734
 run_timer_softirq+0x19/0x30 kernel/time/timer.c:1747
 __do_softirq+0x12c/0x26e kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu kernel/softirq.c:636 [inline]
 irq_exit_rcu+0x4e/0xa0 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
 arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
 acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline]
 acpi_idle_do_entry drivers/acpi/processor_idle.c:553 [inline]
 acpi_idle_enter+0x258/0x2e0 drivers/acpi/processor_idle.c:688
 cpuidle_enter_state+0x2b4/0x760 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x1a3/0x250 kernel/sched/idle.c:306
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:403
 secondary_startup_64_no_verify+0xb1/0xbb

read to 0xffff88810798a885 of 1 bytes by interrupt on cpu 0:
 neigh_output include/net/neighbour.h:507 [inline]
 ip_finish_output2+0x79a/0xaa0 net/ipv4/ip_output.c:221
 ip_finish_output+0x3b5/0x510 net/ipv4/ip_output.c:309
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip_output+0xf3/0x1a0 net/ipv4/ip_output.c:423
 dst_output include/net/dst.h:450 [inline]
 ip_local_out+0x164/0x220 net/ipv4/ip_output.c:126
 __ip_queue_xmit+0x9d3/0xa20 net/ipv4/ip_output.c:525
 ip_queue_xmit+0x34/0x40 net/ipv4/ip_output.c:539
 __tcp_transmit_skb+0x142a/0x1a00 net/ipv4/tcp_output.c:1405
 tcp_transmit_skb net/ipv4/tcp_output.c:1423 [inline]
 tcp_xmit_probe_skb net/ipv4/tcp_output.c:4011 [inline]
 tcp_write_wakeup+0x4a9/0x810 net/ipv4/tcp_output.c:4064
 tcp_send_probe0+0x2c/0x2b0 net/ipv4/tcp_output.c:4079
 tcp_probe_timer net/ipv4/tcp_timer.c:398 [inline]
 tcp_write_timer_handler+0x394/0x520 net/ipv4/tcp_timer.c:626
 tcp_write_timer+0xb9/0x180 net/ipv4/tcp_timer.c:642
 call_timer_fn+0x2e/0x1d0 kernel/time/timer.c:1421
 expire_timers+0x135/0x240 kernel/time/timer.c:1466
 __run_timers+0x368/0x430 kernel/time/timer.c:1734
 run_timer_softirq+0x19/0x30 kernel/time/timer.c:1747
 __do_softirq+0x12c/0x26e kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu kernel/softirq.c:636 [inline]
 irq_exit_rcu+0x4e/0xa0 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
 arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
 acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline]
 acpi_idle_do_entry drivers/acpi/processor_idle.c:553 [inline]
 acpi_idle_enter+0x258/0x2e0 drivers/acpi/processor_idle.c:688
 cpuidle_enter_state+0x2b4/0x760 drivers/cpuidle/cpuidle.c:237
 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351
 call_cpuidle kernel/sched/idle.c:158 [inline]
 cpuidle_idle_call kernel/sched/idle.c:239 [inline]
 do_idle+0x1a3/0x250 kernel/sched/idle.c:306
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:403
 rest_init+0xee/0x100 init/main.c:734
 arch_call_rest_init+0xa/0xb
 start_kernel+0x5e4/0x669 init/main.c:1142
 secondary_startup_64_no_verify+0xb1/0xbb

value changed: 0x20 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/neighbour.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 22ced1381ede5..990f9b1d17092 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -504,10 +504,15 @@ static inline int neigh_output(struct neighbour *n, struct sk_buff *skb,
 {
 	const struct hh_cache *hh = &n->hh;
 
-	if ((n->nud_state & NUD_CONNECTED) && hh->hh_len && !skip_cache)
+	/* n->nud_state and hh->hh_len could be changed under us.
+	 * neigh_hh_output() is taking care of the race later.
+	 */
+	if (!skip_cache &&
+	    (READ_ONCE(n->nud_state) & NUD_CONNECTED) &&
+	    READ_ONCE(hh->hh_len))
 		return neigh_hh_output(hh, skb);
-	else
-		return n->output(n, skb);
+
+	return n->output(n, skb);
 }
 
 static inline struct neighbour *
-- 
GitLab


From eeb96ebdc6862fa597daf594e4131d019c7611f7 Mon Sep 17 00:00:00 2001
From: Stefan Schaeckeler <schaecsn@gmx.net>
Date: Sun, 24 Oct 2021 15:04:45 -0700
Subject: [PATCH 1173/4878] ACPI: AC: Quirk GK45 to skip reading _PSR

[ Upstream commit 3d730ee686800d71ecc5c3cb8460dcdcdeaf38a3 ]

Let GK45 not go into BIOS for determining the AC power state.

The BIOS wrongly returns 0, so hardcode the power state to 1.

The mini PC GK45 by Besstar Tech Lld. (aka Kodlix) just runs
off AC. It does not include any batteries. Nevertheless BIOS
reports AC off:

root@kodlix:/usr/src/linux# cat /sys/class/power_supply/ADP1/online
0

root@kodlix:/usr/src/linux# modprobe acpi_dbg
root@kodlix:/usr/src/linux# tools/power/acpi/acpidbg

- find _PSR
   \_SB.PCI0.SBRG.H_EC.ADP1._PSR Method       000000009283cee8 001 Args 0 Len 001C Aml 00000000f54e5f67

- execute \_SB.PCI0.SBRG.H_EC.ADP1._PSR
Evaluating \_SB.PCI0.SBRG.H_EC.ADP1._PSR
Evaluation of \_SB.PCI0.SBRG.H_EC.ADP1._PSR returned object 00000000dc08c187, external buffer length 18
 [Integer] = 0000000000000000

that should be

 [Integer] = 0000000000000001

Signed-off-by: Stefan Schaeckeler <schaecsn@gmx.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/ac.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 46a64e9fa7165..23ca1a1c67b75 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -64,6 +64,7 @@ static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
 
 static int ac_sleep_before_get_state_ms;
 static int ac_check_pmic = 1;
+static int ac_only;
 
 static struct acpi_driver acpi_ac_driver = {
 	.name = "ac",
@@ -99,6 +100,11 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
 	if (!ac)
 		return -EINVAL;
 
+	if (ac_only) {
+		ac->state = 1;
+		return 0;
+	}
+
 	status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL,
 				       &ac->state);
 	if (ACPI_FAILURE(status)) {
@@ -212,6 +218,12 @@ static int __init ac_do_not_check_pmic_quirk(const struct dmi_system_id *d)
 	return 0;
 }
 
+static int __init ac_only_quirk(const struct dmi_system_id *d)
+{
+	ac_only = 1;
+	return 0;
+}
+
 /* Please keep this list alphabetically sorted */
 static const struct dmi_system_id ac_dmi_table[]  __initconst = {
 	{
@@ -221,6 +233,13 @@ static const struct dmi_system_id ac_dmi_table[]  __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
 		},
 	},
+	{
+		/* Kodlix GK45 returning incorrect state */
+		.callback = ac_only_quirk,
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "GK45"),
+		},
+	},
 	{
 		/* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
 		.callback = ac_do_not_check_pmic_quirk,
-- 
GitLab


From 428bb3d71e35b41f6ee325d680c56a6d6e9594f8 Mon Sep 17 00:00:00 2001
From: Sidong Yang <realwakka@gmail.com>
Date: Thu, 26 Aug 2021 14:44:36 +0000
Subject: [PATCH 1174/4878] btrfs: reflink: initialize return value to 0 in
 btrfs_extent_same()

[ Upstream commit 44bee215f72f13874c0e734a0712c2e3264c0108 ]

Fix a warning reported by smatch that ret could be returned without
initialized.  The dedupe operations are supposed to to return 0 for a 0
length range but the caller does not pass olen == 0. To keep this
behaviour and also fix the warning initialize ret to 0.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Sidong Yang <realwakka@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/reflink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/reflink.c b/fs/btrfs/reflink.c
index 96ef9fed9a656..3a3102bc15a05 100644
--- a/fs/btrfs/reflink.c
+++ b/fs/btrfs/reflink.c
@@ -634,7 +634,7 @@ static int btrfs_extent_same_range(struct inode *src, u64 loff, u64 len,
 static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
 			     struct inode *dst, u64 dst_loff)
 {
-	int ret;
+	int ret = 0;
 	u64 i, tail_len, chunk_count;
 	struct btrfs_root *root_dst = BTRFS_I(dst)->root;
 
-- 
GitLab


From b917f9b94633bde8982f98965aa1fa534b9e8f46 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Tue, 27 Jul 2021 17:01:14 -0400
Subject: [PATCH 1175/4878] btrfs: do not take the uuid_mutex in
 btrfs_rm_device

[ Upstream commit 8ef9dc0f14ba6124c62547a4fdc59b163d8b864e ]

We got the following lockdep splat while running fstests (specifically
btrfs/003 and btrfs/020 in a row) with the new rc.  This was uncovered
by 87579e9b7d8d ("loop: use worker per cgroup instead of kworker") which
converted loop to using workqueues, which comes with lockdep
annotations that don't exist with kworkers.  The lockdep splat is as
follows:

  WARNING: possible circular locking dependency detected
  5.14.0-rc2-custom+ #34 Not tainted
  ------------------------------------------------------
  losetup/156417 is trying to acquire lock:
  ffff9c7645b02d38 ((wq_completion)loop0){+.+.}-{0:0}, at: flush_workqueue+0x84/0x600

  but task is already holding lock:
  ffff9c7647395468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0x41/0x650 [loop]

  which lock already depends on the new lock.

  the existing dependency chain (in reverse order) is:

  -> #5 (&lo->lo_mutex){+.+.}-{3:3}:
	 __mutex_lock+0xba/0x7c0
	 lo_open+0x28/0x60 [loop]
	 blkdev_get_whole+0x28/0xf0
	 blkdev_get_by_dev.part.0+0x168/0x3c0
	 blkdev_open+0xd2/0xe0
	 do_dentry_open+0x163/0x3a0
	 path_openat+0x74d/0xa40
	 do_filp_open+0x9c/0x140
	 do_sys_openat2+0xb1/0x170
	 __x64_sys_openat+0x54/0x90
	 do_syscall_64+0x3b/0x90
	 entry_SYSCALL_64_after_hwframe+0x44/0xae

  -> #4 (&disk->open_mutex){+.+.}-{3:3}:
	 __mutex_lock+0xba/0x7c0
	 blkdev_get_by_dev.part.0+0xd1/0x3c0
	 blkdev_get_by_path+0xc0/0xd0
	 btrfs_scan_one_device+0x52/0x1f0 [btrfs]
	 btrfs_control_ioctl+0xac/0x170 [btrfs]
	 __x64_sys_ioctl+0x83/0xb0
	 do_syscall_64+0x3b/0x90
	 entry_SYSCALL_64_after_hwframe+0x44/0xae

  -> #3 (uuid_mutex){+.+.}-{3:3}:
	 __mutex_lock+0xba/0x7c0
	 btrfs_rm_device+0x48/0x6a0 [btrfs]
	 btrfs_ioctl+0x2d1c/0x3110 [btrfs]
	 __x64_sys_ioctl+0x83/0xb0
	 do_syscall_64+0x3b/0x90
	 entry_SYSCALL_64_after_hwframe+0x44/0xae

  -> #2 (sb_writers#11){.+.+}-{0:0}:
	 lo_write_bvec+0x112/0x290 [loop]
	 loop_process_work+0x25f/0xcb0 [loop]
	 process_one_work+0x28f/0x5d0
	 worker_thread+0x55/0x3c0
	 kthread+0x140/0x170
	 ret_from_fork+0x22/0x30

  -> #1 ((work_completion)(&lo->rootcg_work)){+.+.}-{0:0}:
	 process_one_work+0x266/0x5d0
	 worker_thread+0x55/0x3c0
	 kthread+0x140/0x170
	 ret_from_fork+0x22/0x30

  -> #0 ((wq_completion)loop0){+.+.}-{0:0}:
	 __lock_acquire+0x1130/0x1dc0
	 lock_acquire+0xf5/0x320
	 flush_workqueue+0xae/0x600
	 drain_workqueue+0xa0/0x110
	 destroy_workqueue+0x36/0x250
	 __loop_clr_fd+0x9a/0x650 [loop]
	 lo_ioctl+0x29d/0x780 [loop]
	 block_ioctl+0x3f/0x50
	 __x64_sys_ioctl+0x83/0xb0
	 do_syscall_64+0x3b/0x90
	 entry_SYSCALL_64_after_hwframe+0x44/0xae

  other info that might help us debug this:
  Chain exists of:
    (wq_completion)loop0 --> &disk->open_mutex --> &lo->lo_mutex
   Possible unsafe locking scenario:
	 CPU0                    CPU1
	 ----                    ----
    lock(&lo->lo_mutex);
				 lock(&disk->open_mutex);
				 lock(&lo->lo_mutex);
    lock((wq_completion)loop0);

   *** DEADLOCK ***
  1 lock held by losetup/156417:
   #0: ffff9c7647395468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0x41/0x650 [loop]

  stack backtrace:
  CPU: 8 PID: 156417 Comm: losetup Not tainted 5.14.0-rc2-custom+ #34
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
  Call Trace:
   dump_stack_lvl+0x57/0x72
   check_noncircular+0x10a/0x120
   __lock_acquire+0x1130/0x1dc0
   lock_acquire+0xf5/0x320
   ? flush_workqueue+0x84/0x600
   flush_workqueue+0xae/0x600
   ? flush_workqueue+0x84/0x600
   drain_workqueue+0xa0/0x110
   destroy_workqueue+0x36/0x250
   __loop_clr_fd+0x9a/0x650 [loop]
   lo_ioctl+0x29d/0x780 [loop]
   ? __lock_acquire+0x3a0/0x1dc0
   ? update_dl_rq_load_avg+0x152/0x360
   ? lock_is_held_type+0xa5/0x120
   ? find_held_lock.constprop.0+0x2b/0x80
   block_ioctl+0x3f/0x50
   __x64_sys_ioctl+0x83/0xb0
   do_syscall_64+0x3b/0x90
   entry_SYSCALL_64_after_hwframe+0x44/0xae
  RIP: 0033:0x7f645884de6b

Usually the uuid_mutex exists to protect the fs_devices that map
together all of the devices that match a specific uuid.  In rm_device
we're messing with the uuid of a device, so it makes sense to protect
that here.

However in doing that it pulls in a whole host of lockdep dependencies,
as we call mnt_may_write() on the sb before we grab the uuid_mutex, thus
we end up with the dependency chain under the uuid_mutex being added
under the normal sb write dependency chain, which causes problems with
loop devices.

We don't need the uuid mutex here however.  If we call
btrfs_scan_one_device() before we scratch the super block we will find
the fs_devices and not find the device itself and return EBUSY because
the fs_devices is open.  If we call it after the scratch happens it will
not appear to be a valid btrfs file system.

We do not need to worry about other fs_devices modifying operations here
because we're protected by the exclusive operations locking.

So drop the uuid_mutex here in order to fix the lockdep splat.

A more detailed explanation from the discussion:

We are worried about rm and scan racing with each other, before this
change we'll zero the device out under the UUID mutex so when scan does
run it'll make sure that it can go through the whole device scan thing
without rm messing with us.

We aren't worried if the scratch happens first, because the result is we
don't think this is a btrfs device and we bail out.

The only case we are concerned with is we scratch _after_ scan is able
to read the superblock and gets a seemingly valid super block, so lets
consider this case.

Scan will call device_list_add() with the device we're removing.  We'll
call find_fsid_with_metadata_uuid() and get our fs_devices for this
UUID.  At this point we lock the fs_devices->device_list_mutex.  This is
what protects us in this case, but we have two cases here.

1. We aren't to the device removal part of the RM.  We found our device,
   and device name matches our path, we go down and we set total_devices
   to our super number of devices, which doesn't affect anything because
   we haven't done the remove yet.

2. We are past the device removal part, which is protected by the
   device_list_mutex.  Scan doesn't find the device, it goes down and
   does the

   if (fs_devices->opened)
	   return -EBUSY;

   check and we bail out.

Nothing about this situation is ideal, but the lockdep splat is real,
and the fix is safe, tho admittedly a bit scary looking.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ copy more from the discussion ]
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/volumes.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 8946355dfe448..d9e582e40b5b7 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2069,8 +2069,11 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
 	u64 num_devices;
 	int ret = 0;
 
-	mutex_lock(&uuid_mutex);
-
+	/*
+	 * The device list in fs_devices is accessed without locks (neither
+	 * uuid_mutex nor device_list_mutex) as it won't change on a mounted
+	 * filesystem and another device rm cannot run.
+	 */
 	num_devices = btrfs_num_devices(fs_info);
 
 	ret = btrfs_check_raid_min_devices(fs_info, num_devices - 1);
@@ -2114,11 +2117,9 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
 		mutex_unlock(&fs_info->chunk_mutex);
 	}
 
-	mutex_unlock(&uuid_mutex);
 	ret = btrfs_shrink_device(device, 0);
 	if (!ret)
 		btrfs_reada_remove_dev(device);
-	mutex_lock(&uuid_mutex);
 	if (ret)
 		goto error_undo;
 
@@ -2194,7 +2195,6 @@ int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
 	}
 
 out:
-	mutex_unlock(&uuid_mutex);
 	return ret;
 
 error_undo:
-- 
GitLab


From a27095cda17df56acc97e8e7dc765ff5d8e5f479 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Mon, 18 Oct 2021 15:34:13 +0800
Subject: [PATCH 1176/4878] spi: bcm-qspi: Fix missing clk_disable_unprepare()
 on error in bcm_qspi_probe()

[ Upstream commit ca9b8f56ec089d3a436050afefd17b7237301f47 ]

Fix the missing clk_disable_unprepare() before return
from bcm_qspi_probe() in the error handling case.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211018073413.2029081-1-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-bcm-qspi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index b4d5930be2a95..3c0ae6dbc43e2 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1460,7 +1460,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 					       &qspi->dev_ids[val]);
 			if (ret < 0) {
 				dev_err(&pdev->dev, "IRQ %s not found\n", name);
-				goto qspi_probe_err;
+				goto qspi_unprepare_err;
 			}
 
 			qspi->dev_ids[val].dev = qspi;
@@ -1475,7 +1475,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 	if (!num_ints) {
 		dev_err(&pdev->dev, "no IRQs registered, cannot init driver\n");
 		ret = -EINVAL;
-		goto qspi_probe_err;
+		goto qspi_unprepare_err;
 	}
 
 	bcm_qspi_hw_init(qspi);
@@ -1499,6 +1499,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 
 qspi_reg_err:
 	bcm_qspi_hw_uninit(qspi);
+qspi_unprepare_err:
 	clk_disable_unprepare(qspi->clk);
 qspi_probe_err:
 	kfree(qspi->dev_ids);
-- 
GitLab


From c4cfdf5fa8fcb60c55e825de3c0876a2a27778b5 Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Mon, 18 Oct 2021 12:57:57 +0200
Subject: [PATCH 1177/4878] wcn36xx: Correct band/freq reporting on RX

[ Upstream commit 8a27ca39478270e07baf9c09aa0c99709769ba03 ]

For packets originating from hardware scan, the channel and band is
included in the buffer descriptor (bd->rf_band & bd->rx_ch).

For 2Ghz band the channel value is directly reported in the 4-bit
rx_ch field. For 5Ghz band, the rx_ch field contains a mapping
index (given the 4-bit limitation).

The reserved0 value field is also used to extend 4-bit mapping to
5-bit mapping to support more than 16 5Ghz channels.

This change adds correct reporting of the frequency/band, that is
used in scan mechanism. And is required for 5Ghz hardware scan
support.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1634554678-7993-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 23 +++++++++++++++++++++++
 drivers/net/wireless/ath/wcn36xx/txrx.h |  3 ++-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index eaf2410e39647..c0f51fa13dfa1 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -31,6 +31,13 @@ struct wcn36xx_rate {
 	enum rate_info_bw bw;
 };
 
+/* Buffer descriptor rx_ch field is limited to 5-bit (4+1), a mapping is used
+ * for 11A Channels.
+ */
+static const u8 ab_rx_ch_map[] = { 36, 40, 44, 48, 52, 56, 60, 64, 100, 104,
+				   108, 112, 116, 120, 124, 128, 132, 136, 140,
+				   149, 153, 157, 161, 165, 144 };
+
 static const struct wcn36xx_rate wcn36xx_rate_table[] = {
 	/* 11b rates */
 	{  10, 0, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 },
@@ -291,6 +298,22 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 	    ieee80211_is_probe_resp(hdr->frame_control))
 		status.boottime_ns = ktime_get_boottime_ns();
 
+	if (bd->scan_learn) {
+		/* If packet originates from hardware scanning, extract the
+		 * band/channel from bd descriptor.
+		 */
+		u8 hwch = (bd->reserved0 << 4) + bd->rx_ch;
+
+		if (bd->rf_band != 1 && hwch <= sizeof(ab_rx_ch_map) && hwch >= 1) {
+			status.band = NL80211_BAND_5GHZ;
+			status.freq = ieee80211_channel_to_frequency(ab_rx_ch_map[hwch - 1],
+								     status.band);
+		} else {
+			status.band = NL80211_BAND_2GHZ;
+			status.freq = ieee80211_channel_to_frequency(hwch, status.band);
+		}
+	}
+
 	memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
 
 	if (ieee80211_is_beacon(hdr->frame_control)) {
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.h b/drivers/net/wireless/ath/wcn36xx/txrx.h
index 032216e82b2be..b54311ffde9c5 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.h
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.h
@@ -110,7 +110,8 @@ struct wcn36xx_rx_bd {
 	/* 0x44 */
 	u32	exp_seq_num:12;
 	u32	cur_seq_num:12;
-	u32	fr_type_subtype:8;
+	u32	rf_band:2;
+	u32	fr_type_subtype:6;
 
 	/* 0x48 */
 	u32	msdu_size:16;
-- 
GitLab


From ddfcae905238b3e3fef7440feba455b957d96bef Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Tue, 12 Oct 2021 17:50:05 +0200
Subject: [PATCH 1178/4878] x86/hyperv: Protect set_hv_tscchange_cb() against
 getting preempted

[ Upstream commit 285f68afa8b20f752b0b7194d54980b5e0e27b75 ]

The following issue is observed with CONFIG_DEBUG_PREEMPT when KVM loads:

 KVM: vmx: using Hyper-V Enlightened VMCS
 BUG: using smp_processor_id() in preemptible [00000000] code: systemd-udevd/488
 caller is set_hv_tscchange_cb+0x16/0x80
 CPU: 1 PID: 488 Comm: systemd-udevd Not tainted 5.15.0-rc5+ #396
 Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019
 Call Trace:
  dump_stack_lvl+0x6a/0x9a
  check_preemption_disabled+0xde/0xe0
  ? kvm_gen_update_masterclock+0xd0/0xd0 [kvm]
  set_hv_tscchange_cb+0x16/0x80
  kvm_arch_init+0x23f/0x290 [kvm]
  kvm_init+0x30/0x310 [kvm]
  vmx_init+0xaf/0x134 [kvm_intel]
  ...

set_hv_tscchange_cb() can get preempted in between acquiring
smp_processor_id() and writing to HV_X64_MSR_REENLIGHTENMENT_CONTROL. This
is not an issue by itself: HV_X64_MSR_REENLIGHTENMENT_CONTROL is a
partition-wide MSR and it doesn't matter which particular CPU will be
used to receive reenlightenment notifications. The only real problem can
(in theory) be observed if the CPU whose id was acquired with
smp_processor_id() goes offline before we manage to write to the MSR,
the logic in hv_cpu_die() won't be able to reassign it correctly.

Reported-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20211012155005.1613352-1-vkuznets@redhat.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/hyperv/hv_init.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 6375967a8244d..3cf4030232590 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -168,7 +168,6 @@ void set_hv_tscchange_cb(void (*cb)(void))
 	struct hv_reenlightenment_control re_ctrl = {
 		.vector = HYPERV_REENLIGHTENMENT_VECTOR,
 		.enabled = 1,
-		.target_vp = hv_vp_index[smp_processor_id()]
 	};
 	struct hv_tsc_emulation_control emu_ctrl = {.enabled = 1};
 
@@ -182,8 +181,12 @@ void set_hv_tscchange_cb(void (*cb)(void))
 	/* Make sure callback is registered before we write to MSRs */
 	wmb();
 
+	re_ctrl.target_vp = hv_vp_index[get_cpu()];
+
 	wrmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *((u64 *)&re_ctrl));
 	wrmsrl(HV_X64_MSR_TSC_EMULATION_CONTROL, *((u64 *)&emu_ctrl));
+
+	put_cpu();
 }
 EXPORT_SYMBOL_GPL(set_hv_tscchange_cb);
 
-- 
GitLab


From 6f038b1a941e87886f6bbced0a65aea343a9859e Mon Sep 17 00:00:00 2001
From: Anson Jacob <Anson.Jacob@amd.com>
Date: Fri, 17 Sep 2021 18:29:36 -0400
Subject: [PATCH 1179/4878] drm/amd/display: dcn20_resource_construct reduce
 scope of FPU enabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit bc39a69a2ac484e6575a958567c162ef56c9f278 ]

Limit when FPU is enabled to only functions that does FPU operations for
dcn20_resource_construct, which gets called during driver
initialization.

Enabling FPU operation disables preemption.  Sleeping functions(mutex
(un)lock, memory allocation using GFP_KERNEL, etc.) should not be called
when preemption is disabled.

Fixes the following case caught by enabling
CONFIG_DEBUG_ATOMIC_SLEEP in kernel config
[    1.338434] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:281
[    1.347395] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 197, name: systemd-udevd
[    1.356356] CPU: 7 PID: 197 Comm: systemd-udevd Not tainted 5.13.0+ #3
[    1.356358] Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 3405 02/01/2021
[    1.356360] Call Trace:
[    1.356361]  dump_stack+0x6b/0x86
[    1.356366]  ___might_sleep.cold+0x87/0x98
[    1.356370]  __might_sleep+0x4b/0x80
[    1.356372]  mutex_lock+0x21/0x50
[    1.356376]  smu_get_uclk_dpm_states+0x3f/0x80 [amdgpu]
[    1.356538]  pp_nv_get_uclk_dpm_states+0x35/0x50 [amdgpu]
[    1.356711]  init_soc_bounding_box+0xf9/0x210 [amdgpu]
[    1.356892]  ? create_object+0x20d/0x340
[    1.356897]  ? dcn20_resource_construct+0x46f/0xd30 [amdgpu]
[    1.357077]  dcn20_resource_construct+0x4b1/0xd30 [amdgpu]
...

Tested on: 5700XT (NAVI10 0x1002:0x731F 0x1DA2:0xE410 0xC1)

Cc: Christian König <christian.koenig@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Anson Jacob <Anson.Jacob@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Acked-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Signed-off-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/display/dc/dcn20/dcn20_resource.c    | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 5dbc290bcbe86..3121816546467 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -3754,16 +3754,22 @@ static bool init_soc_bounding_box(struct dc *dc,
 			clock_limits_available = (status == PP_SMU_RESULT_OK);
 		}
 
-		if (clock_limits_available && uclk_states_available && num_states)
+		if (clock_limits_available && uclk_states_available && num_states) {
+			DC_FP_START();
 			dcn20_update_bounding_box(dc, loaded_bb, &max_clocks, uclk_states, num_states);
-		else if (clock_limits_available)
+			DC_FP_END();
+		} else if (clock_limits_available) {
+			DC_FP_START();
 			dcn20_cap_soc_clocks(loaded_bb, max_clocks);
+			DC_FP_END();
+		}
 	}
 
 	loaded_ip->max_num_otg = pool->base.res_cap->num_timing_generator;
 	loaded_ip->max_num_dpp = pool->base.pipe_count;
+	DC_FP_START();
 	dcn20_patch_bounding_box(dc, loaded_bb);
-
+	DC_FP_END();
 	return true;
 }
 
@@ -3783,8 +3789,6 @@ static bool dcn20_resource_construct(
 	enum dml_project dml_project_version =
 			get_dml_project_version(ctx->asic_id.hw_internal_rev);
 
-	DC_FP_START();
-
 	ctx->dc_bios->regs = &bios_regs;
 	pool->base.funcs = &dcn20_res_pool_funcs;
 
@@ -4128,12 +4132,10 @@ static bool dcn20_resource_construct(
 		pool->base.oem_device = NULL;
 	}
 
-	DC_FP_END();
 	return true;
 
 create_fail:
 
-	DC_FP_END();
 	dcn20_resource_destruct(pool);
 
 	return false;
-- 
GitLab


From d8166a27c64800a1a3fade1b54c947d369c9f7ef Mon Sep 17 00:00:00 2001
From: Shuah Khan <skhan@linuxfoundation.org>
Date: Wed, 27 Oct 2021 13:26:19 -0600
Subject: [PATCH 1180/4878] selftests/core: fix conflicting types compile error
 for close_range()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f35dcaa0a8a29188ed61083d153df1454cf89d08 ]

close_range() test type conflicts with close_range() library call in
x86_64-linux-gnu/bits/unistd_ext.h. Fix it by changing the name to
core_close_range().

gcc -g -I../../../../usr/include/    close_range_test.c  -o ../tools/testing/selftests/core/close_range_test
In file included from close_range_test.c:16:
close_range_test.c:57:6: error: conflicting types for ‘close_range’; have ‘void(struct __test_metadata *)’
   57 | TEST(close_range)
      |      ^~~~~~~~~~~
../kselftest_harness.h:181:21: note: in definition of macro ‘__TEST_IMPL’
  181 |         static void test_name(struct __test_metadata *_metadata); \
      |                     ^~~~~~~~~
close_range_test.c:57:1: note: in expansion of macro ‘TEST’
   57 | TEST(close_range)
      | ^~~~
In file included from /usr/include/unistd.h:1204,
                 from close_range_test.c:13:
/usr/include/x86_64-linux-gnu/bits/unistd_ext.h:56:12: note: previous declaration of ‘close_range’ with type ‘int(unsigned int,  unsigned int,  int)’
   56 | extern int close_range (unsigned int __fd, unsigned int __max_fd,
      |            ^~~~~~~~~~~

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/core/close_range_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c
index 575b391ddc78d..0a26795842f6f 100644
--- a/tools/testing/selftests/core/close_range_test.c
+++ b/tools/testing/selftests/core/close_range_test.c
@@ -33,7 +33,7 @@ static inline int sys_close_range(unsigned int fd, unsigned int max_fd,
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 #endif
 
-TEST(close_range)
+TEST(core_close_range)
 {
 	int i, ret;
 	int open_fds[101];
-- 
GitLab


From 44d4c43babb07a89e0308b1da3d94df1a9bd19ab Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Sat, 9 Oct 2021 20:24:39 +0200
Subject: [PATCH 1181/4878] parisc: fix warning in flush_tlb_all

[ Upstream commit 1030d681319b43869e0d5b568b9d0226652d1a6f ]

I've got the following splat after enabling preemption:

[    3.724721] BUG: using __this_cpu_add() in preemptible [00000000] code: swapper/0/1
[    3.734630] caller is __this_cpu_preempt_check+0x38/0x50
[    3.740635] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc4-64bit+ #324
[    3.744605] Hardware name: 9000/785/C8000
[    3.744605] Backtrace:
[    3.744605]  [<00000000401d9d58>] show_stack+0x74/0xb0
[    3.744605]  [<0000000040c27bd4>] dump_stack_lvl+0x10c/0x188
[    3.744605]  [<0000000040c27c84>] dump_stack+0x34/0x48
[    3.744605]  [<0000000040c33438>] check_preemption_disabled+0x178/0x1b0
[    3.744605]  [<0000000040c334f8>] __this_cpu_preempt_check+0x38/0x50
[    3.744605]  [<00000000401d632c>] flush_tlb_all+0x58/0x2e0
[    3.744605]  [<00000000401075c0>] 0x401075c0
[    3.744605]  [<000000004010b8fc>] 0x4010b8fc
[    3.744605]  [<00000000401080fc>] 0x401080fc
[    3.744605]  [<00000000401d5224>] do_one_initcall+0x128/0x378
[    3.744605]  [<0000000040102de8>] 0x40102de8
[    3.744605]  [<0000000040c33864>] kernel_init+0x60/0x3a8
[    3.744605]  [<00000000401d1020>] ret_from_kernel_thread+0x20/0x28
[    3.744605]

Fix this by moving the __inc_irq_stat() into the locked section.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 3ec633b11b542..8f10cc6ee0fce 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -844,9 +844,9 @@ void flush_tlb_all(void)
 {
 	int do_recycle;
 
-	__inc_irq_stat(irq_tlb_count);
 	do_recycle = 0;
 	spin_lock(&sid_lock);
+	__inc_irq_stat(irq_tlb_count);
 	if (dirty_space_ids > RECYCLE_THRESHOLD) {
 	    BUG_ON(recycle_inuse);  /* FIXME: Use a semaphore/wait queue here */
 	    get_dirty_sids(&recycle_ndirty,recycle_dirty_array);
@@ -865,8 +865,8 @@ void flush_tlb_all(void)
 #else
 void flush_tlb_all(void)
 {
-	__inc_irq_stat(irq_tlb_count);
 	spin_lock(&sid_lock);
+	__inc_irq_stat(irq_tlb_count);
 	flush_tlb_all_local(NULL);
 	recycle_sids();
 	spin_unlock(&sid_lock);
-- 
GitLab


From 50a2d1229b512d79233ce57ec5226f29467af8e1 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 5 Oct 2021 00:05:43 +0200
Subject: [PATCH 1182/4878] task_stack: Fix end_of_stack() for architectures
 with upwards-growing stack

[ Upstream commit 9cc2fa4f4a92ccc6760d764e7341be46ee8aaaa1 ]

The function end_of_stack() returns a pointer to the last entry of a
stack. For architectures like parisc where the stack grows upwards
return the pointer to the highest address in the stack.

Without this change I faced a crash on parisc, because the stackleak
functionality wrote STACKLEAK_POISON to the lowest address and thus
overwrote the first 4 bytes of the task_struct which included the
TIF_FLAGS.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sched/task_stack.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index 2413427e439c7..d10150587d819 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -25,7 +25,11 @@ static inline void *task_stack_page(const struct task_struct *task)
 
 static inline unsigned long *end_of_stack(const struct task_struct *task)
 {
+#ifdef CONFIG_STACK_GROWSUP
+	return (unsigned long *)((unsigned long)task->stack + THREAD_SIZE) - 1;
+#else
 	return task->stack;
+#endif
 }
 
 #elif !defined(__HAVE_THREAD_FUNCTIONS)
-- 
GitLab


From ee75174f6ab93611e1623f0ae5590beda008aef5 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Mon, 25 Oct 2021 15:43:11 +0800
Subject: [PATCH 1183/4878] erofs: don't trigger WARN() when decompression
 fails

[ Upstream commit a0961f351d82d43ab0b845304caa235dfe249ae9 ]

syzbot reported a WARNING [1] due to corrupted compressed data.

As Dmitry said, "If this is not a kernel bug, then the code should
not use WARN. WARN if for kernel bugs and is recognized as such by
all testing systems and humans."

[1] https://lore.kernel.org/r/000000000000b3586105cf0ff45e@google.com

Link: https://lore.kernel.org/r/20211025074311.130395-1-hsiangkao@linux.alibaba.com
Cc: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Reported-by: syzbot+d8aaffc3719597e8cfb4@syzkaller.appspotmail.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/erofs/decompressor.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index cbadbf55c6c20..8a6260aac26cb 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -170,7 +170,6 @@ static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
 		erofs_err(rq->sb, "failed to decompress %d in[%u, %u] out[%u]",
 			  ret, inlen, inputmargin, rq->outputsize);
 
-		WARN_ON(1);
 		print_hex_dump(KERN_DEBUG, "[ in]: ", DUMP_PREFIX_OFFSET,
 			       16, 1, src + inputmargin, inlen, true);
 		print_hex_dump(KERN_DEBUG, "[out]: ", DUMP_PREFIX_OFFSET,
-- 
GitLab


From a1ec31a0befa5458366959224e8e6d94c1513fa1 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Sat, 9 Oct 2021 23:15:17 +0200
Subject: [PATCH 1184/4878] parisc/unwind: fix unwinder when CONFIG_64BIT is
 enabled

[ Upstream commit 8e0ba125c2bf1030af3267058019ba86da96863f ]

With 64 bit kernels unwind_special() is not working because
it compares the pc to the address of the function descriptor.
Add a helper function that compares pc with the dereferenced
address. This fixes all of the backtraces on my c8000. Without
this changes, a lot of backtraces are missing in kdb or the
show-all-tasks command from /proc/sysrq-trigger.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/kernel/unwind.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 87ae476d1c4f5..86a57fb0e6fae 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -21,6 +21,8 @@
 #include <asm/ptrace.h>
 
 #include <asm/unwind.h>
+#include <asm/switch_to.h>
+#include <asm/sections.h>
 
 /* #define DEBUG 1 */
 #ifdef DEBUG
@@ -203,6 +205,11 @@ int __init unwind_init(void)
 	return 0;
 }
 
+static bool pc_is_kernel_fn(unsigned long pc, void *fn)
+{
+	return (unsigned long)dereference_kernel_function_descriptor(fn) == pc;
+}
+
 static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int frame_size)
 {
 	/*
@@ -221,7 +228,7 @@ static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int
 	extern void * const _call_on_stack;
 #endif /* CONFIG_IRQSTACKS */
 
-	if (pc == (unsigned long) &handle_interruption) {
+	if (pc_is_kernel_fn(pc, handle_interruption)) {
 		struct pt_regs *regs = (struct pt_regs *)(info->sp - frame_size - PT_SZ_ALGN);
 		dbg("Unwinding through handle_interruption()\n");
 		info->prev_sp = regs->gr[30];
@@ -229,13 +236,13 @@ static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int
 		return 1;
 	}
 
-	if (pc == (unsigned long) &ret_from_kernel_thread ||
-	    pc == (unsigned long) &syscall_exit) {
+	if (pc_is_kernel_fn(pc, ret_from_kernel_thread) ||
+	    pc_is_kernel_fn(pc, syscall_exit)) {
 		info->prev_sp = info->prev_ip = 0;
 		return 1;
 	}
 
-	if (pc == (unsigned long) &intr_return) {
+	if (pc_is_kernel_fn(pc, intr_return)) {
 		struct pt_regs *regs;
 
 		dbg("Found intr_return()\n");
@@ -246,20 +253,20 @@ static int unwind_special(struct unwind_frame_info *info, unsigned long pc, int
 		return 1;
 	}
 
-	if (pc == (unsigned long) &_switch_to_ret) {
+	if (pc_is_kernel_fn(pc, _switch_to) ||
+	    pc_is_kernel_fn(pc, _switch_to_ret)) {
 		info->prev_sp = info->sp - CALLEE_SAVE_FRAME_SIZE;
 		info->prev_ip = *(unsigned long *)(info->prev_sp - RP_OFFSET);
 		return 1;
 	}
 
 #ifdef CONFIG_IRQSTACKS
-	if (pc == (unsigned long) &_call_on_stack) {
+	if (pc_is_kernel_fn(pc, _call_on_stack)) {
 		info->prev_sp = *(unsigned long *)(info->sp - FRAME_SIZE - REG_SZ);
 		info->prev_ip = *(unsigned long *)(info->sp - FRAME_SIZE - RP_OFFSET);
 		return 1;
 	}
 #endif
-
 	return 0;
 }
 
-- 
GitLab


From 0c5e946794806474a421f24e62c569971f4401e7 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Fri, 15 Oct 2021 21:49:23 +0200
Subject: [PATCH 1185/4878] parisc/kgdb: add kgdb_roundup() to make kgdb work
 with idle polling

[ Upstream commit 66e29fcda1824f0427966fbee2bd2c85bf362c82 ]

With idle polling, IPIs are not sent when a CPU idle, but queued
and run later from do_idle(). The default kgdb_call_nmi_hook()
implementation gets the pointer to struct pt_regs from get_irq_reqs(),
which doesn't work in that case because it was not called from the
IPI interrupt handler. Fix it by defining our own kgdb_roundup()
function which sents an IPI_ENTER_KGDB. When that IPI is received
on the target CPU kgdb_nmicallback() is called.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/kernel/smp.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 1405b603b91b6..cf92ece20b757 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -29,6 +29,7 @@
 #include <linux/bitops.h>
 #include <linux/ftrace.h>
 #include <linux/cpu.h>
+#include <linux/kgdb.h>
 
 #include <linux/atomic.h>
 #include <asm/current.h>
@@ -69,7 +70,10 @@ enum ipi_message_type {
 	IPI_CALL_FUNC,
 	IPI_CPU_START,
 	IPI_CPU_STOP,
-	IPI_CPU_TEST
+	IPI_CPU_TEST,
+#ifdef CONFIG_KGDB
+	IPI_ENTER_KGDB,
+#endif
 };
 
 
@@ -167,7 +171,12 @@ ipi_interrupt(int irq, void *dev_id)
 			case IPI_CPU_TEST:
 				smp_debug(100, KERN_DEBUG "CPU%d is alive!\n", this_cpu);
 				break;
-
+#ifdef CONFIG_KGDB
+			case IPI_ENTER_KGDB:
+				smp_debug(100, KERN_DEBUG "CPU%d ENTER_KGDB\n", this_cpu);
+				kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
+				break;
+#endif
 			default:
 				printk(KERN_CRIT "Unknown IPI num on CPU%d: %lu\n",
 					this_cpu, which);
@@ -226,6 +235,12 @@ send_IPI_allbutself(enum ipi_message_type op)
 	}
 }
 
+#ifdef CONFIG_KGDB
+void kgdb_roundup_cpus(void)
+{
+	send_IPI_allbutself(IPI_ENTER_KGDB);
+}
+#endif
 
 inline void 
 smp_send_stop(void)	{ send_IPI_allbutself(IPI_CPU_STOP); }
-- 
GitLab


From bc9199271c32ec104eac405f7d412283b86e0440 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 25 Oct 2021 11:26:49 +0200
Subject: [PATCH 1186/4878] netfilter: conntrack: set on IPS_ASSURED if flows
 enters internal stream state
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit b7b1d02fc43925a4d569ec221715db2dfa1ce4f5 ]

The internal stream state sets the timeout to 120 seconds 2 seconds
after the creation of the flow, attach this internal stream state to the
IPS_ASSURED flag for consistent event reporting.

Before this patch:

      [NEW] udp      17 30 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 [UNREPLIED] src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282
   [UPDATE] udp      17 30 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282
   [UPDATE] udp      17 30 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282 [ASSURED]
  [DESTROY] udp      17 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282 [ASSURED]

Note IPS_ASSURED for the flow not yet in the internal stream state.

after this update:

      [NEW] udp      17 30 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 [UNREPLIED] src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282
   [UPDATE] udp      17 30 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282
   [UPDATE] udp      17 120 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282 [ASSURED]
  [DESTROY] udp      17 src=10.246.11.13 dst=216.239.35.0 sport=37282 dport=123 src=216.239.35.0 dst=10.246.11.13 sport=123 dport=37282 [ASSURED]

Before this patch, short-lived UDP flows never entered IPS_ASSURED, so
they were already candidate flow to be deleted by early_drop under
stress.

Before this patch, IPS_ASSURED is set on regardless the internal stream
state, attach this internal stream state to IPS_ASSURED.

packet #1 (original direction) enters NEW state
packet #2 (reply direction) enters ESTABLISHED state, sets on IPS_SEEN_REPLY
paclet #3 (any direction) sets on IPS_ASSURED (if 2 seconds since the
          creation has passed by).

Reported-by: Maciej Żenczykowski <zenczykowski@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_conntrack_proto_udp.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index af402f458ee02..0528e9c26cebd 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -105,10 +105,13 @@ int nf_conntrack_udp_packet(struct nf_conn *ct,
 	 */
 	if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
 		unsigned long extra = timeouts[UDP_CT_UNREPLIED];
+		bool stream = false;
 
 		/* Still active after two seconds? Extend timeout. */
-		if (time_after(jiffies, ct->proto.udp.stream_ts))
+		if (time_after(jiffies, ct->proto.udp.stream_ts)) {
 			extra = timeouts[UDP_CT_REPLIED];
+			stream = true;
+		}
 
 		nf_ct_refresh_acct(ct, ctinfo, skb, extra);
 
@@ -117,7 +120,7 @@ int nf_conntrack_udp_packet(struct nf_conn *ct,
 			return NF_ACCEPT;
 
 		/* Also, more likely to be important, and not a probe */
-		if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
+		if (stream && !test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
 			nf_conntrack_event_cache(IPCT_ASSURED, ct);
 	} else {
 		nf_ct_refresh_acct(ct, ctinfo, skb, timeouts[UDP_CT_UNREPLIED]);
-- 
GitLab


From 19337ed10e7e7d36b017b40d08eece6ab428d3af Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Fri, 29 Oct 2021 11:29:07 -0700
Subject: [PATCH 1187/4878] selftests/bpf: Fix strobemeta selftest regression

[ Upstream commit 0133c20480b14820d43c37c0e9502da4bffcad3a ]

After most recent nightly Clang update strobemeta selftests started
failing with the following error (relevant portion of assembly included):

  1624: (85) call bpf_probe_read_user_str#114
  1625: (bf) r1 = r0
  1626: (18) r2 = 0xfffffffe
  1628: (5f) r1 &= r2
  1629: (55) if r1 != 0x0 goto pc+7
  1630: (07) r9 += 104
  1631: (6b) *(u16 *)(r9 +0) = r0
  1632: (67) r0 <<= 32
  1633: (77) r0 >>= 32
  1634: (79) r1 = *(u64 *)(r10 -456)
  1635: (0f) r1 += r0
  1636: (7b) *(u64 *)(r10 -456) = r1
  1637: (79) r1 = *(u64 *)(r10 -368)
  1638: (c5) if r1 s< 0x1 goto pc+778
  1639: (bf) r6 = r8
  1640: (0f) r6 += r7
  1641: (b4) w1 = 0
  1642: (6b) *(u16 *)(r6 +108) = r1
  1643: (79) r3 = *(u64 *)(r10 -352)
  1644: (79) r9 = *(u64 *)(r10 -456)
  1645: (bf) r1 = r9
  1646: (b4) w2 = 1
  1647: (85) call bpf_probe_read_user_str#114

  R1 unbounded memory access, make sure to bounds check any such access

In the above code r0 and r1 are implicitly related. Clang knows that,
but verifier isn't able to infer this relationship.

Yonghong Song narrowed down this "regression" in code generation to
a recent Clang optimization change ([0]), which for BPF target generates
code pattern that BPF verifier can't handle and loses track of register
boundaries.

This patch works around the issue by adding an BPF assembly-based helper
that helps to prove to the verifier that upper bound of the register is
a given constant by controlling the exact share of generated BPF
instruction sequence. This fixes the immediate issue for strobemeta
selftest.

  [0] https://github.com/llvm/llvm-project/commit/acabad9ff6bf13e00305d9d8621ee8eafc1f8b08

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211029182907.166910-1-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/progs/strobemeta.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/testing/selftests/bpf/progs/strobemeta.h b/tools/testing/selftests/bpf/progs/strobemeta.h
index 7de534f38c3f1..3687ea755ab5a 100644
--- a/tools/testing/selftests/bpf/progs/strobemeta.h
+++ b/tools/testing/selftests/bpf/progs/strobemeta.h
@@ -10,6 +10,14 @@
 #include <linux/types.h>
 #include <bpf/bpf_helpers.h>
 
+#define bpf_clamp_umax(VAR, UMAX)					\
+	asm volatile (							\
+		"if %0 <= %[max] goto +1\n"				\
+		"%0 = %[max]\n"						\
+		: "+r"(VAR)						\
+		: [max]"i"(UMAX)					\
+	)
+
 typedef uint32_t pid_t;
 struct task_struct {};
 
@@ -413,6 +421,7 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 
 	len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN, map.tag);
 	if (len <= STROBE_MAX_STR_LEN) {
+		bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
 		descr->tag_len = len;
 		payload += len;
 	}
@@ -430,6 +439,7 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 		len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN,
 					      map.entries[i].key);
 		if (len <= STROBE_MAX_STR_LEN) {
+			bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
 			descr->key_lens[i] = len;
 			payload += len;
 		}
@@ -437,6 +447,7 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 		len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN,
 					      map.entries[i].val);
 		if (len <= STROBE_MAX_STR_LEN) {
+			bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
 			descr->val_lens[i] = len;
 			payload += len;
 		}
-- 
GitLab


From c20d8c197454068da758a83e09d93683f520d681 Mon Sep 17 00:00:00 2001
From: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Date: Thu, 2 Sep 2021 23:13:06 -0400
Subject: [PATCH 1188/4878] Bluetooth: fix init and cleanup of
 sco_conn.timeout_work

[ Upstream commit 49d8a5606428ca0962d09050a5af81461ff90fbb ]

Before freeing struct sco_conn, all delayed timeout work should be
cancelled. Otherwise, sco_sock_timeout could potentially use the
sco_conn after it has been freed.

Additionally, sco_conn.timeout_work should be initialized when the
connection is allocated, not when the channel is added. This is
because an sco_conn can create channels with multiple sockets over its
lifetime, which happens if sockets are released but the connection
isn't deleted.

Fixes: ba316be1b6a0 ("Bluetooth: schedule SCO timeouts with delayed_work")
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/sco.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 93df269a64707..2f2b8ddc4dd5d 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -134,6 +134,7 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
 		return NULL;
 
 	spin_lock_init(&conn->lock);
+	INIT_DELAYED_WORK(&conn->timeout_work, sco_sock_timeout);
 
 	hcon->sco_data = conn;
 	conn->hcon = hcon;
@@ -197,11 +198,11 @@ static void sco_conn_del(struct hci_conn *hcon, int err)
 		sco_chan_del(sk, err);
 		bh_unlock_sock(sk);
 		sock_put(sk);
-
-		/* Ensure no more work items will run before freeing conn. */
-		cancel_delayed_work_sync(&conn->timeout_work);
 	}
 
+	/* Ensure no more work items will run before freeing conn. */
+	cancel_delayed_work_sync(&conn->timeout_work);
+
 	hcon->sco_data = NULL;
 	kfree(conn);
 }
@@ -214,8 +215,6 @@ static void __sco_chan_add(struct sco_conn *conn, struct sock *sk,
 	sco_pi(sk)->conn = conn;
 	conn->sk = sk;
 
-	INIT_DELAYED_WORK(&conn->timeout_work, sco_sock_timeout);
-
 	if (parent)
 		bt_accept_enqueue(parent, sk, true);
 }
-- 
GitLab


From 226d68fb6c0a22cf8cc258ff8912956516f944c1 Mon Sep 17 00:00:00 2001
From: Neeraj Upadhyay <neeraju@codeaurora.org>
Date: Wed, 18 Aug 2021 13:34:00 +0530
Subject: [PATCH 1189/4878] rcu: Fix existing exp request check in
 sync_sched_exp_online_cleanup()

[ Upstream commit f0b2b2df5423fb369ac762c77900bc7765496d58 ]

The sync_sched_exp_online_cleanup() checks to see if RCU needs
an expedited quiescent state from the incoming CPU, sending it
an IPI if so. Before sending IPI, it checks whether expedited
qs need has been already requested for the incoming CPU, by
checking rcu_data.cpu_no_qs.b.exp for the current cpu, on which
sync_sched_exp_online_cleanup() is running. This works for the
case where incoming CPU is same as self. However, for the case
where incoming CPU is different from self, expedited request
won't get marked, which can potentially delay reporting of
expedited quiescent state for the incoming CPU.

Fixes: e015a3411220 ("rcu: Avoid self-IPI in sync_sched_exp_online_cleanup()")
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/rcu/tree_exp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index 8760b6ead770a..0ffe185c1f46a 100644
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -759,7 +759,7 @@ static void sync_sched_exp_online_cleanup(int cpu)
 	my_cpu = get_cpu();
 	/* Quiescent state either not needed or already requested, leave. */
 	if (!(READ_ONCE(rnp->expmask) & rdp->grpmask) ||
-	    __this_cpu_read(rcu_data.cpu_no_qs.b.exp)) {
+	    rdp->cpu_no_qs.b.exp) {
 		put_cpu();
 		return;
 	}
-- 
GitLab


From 6b72caabc47011d03f44064452b2c65e8ed18326 Mon Sep 17 00:00:00 2001
From: Aleksander Jan Bajkowski <olek2@wp.pl>
Date: Tue, 14 Sep 2021 23:21:00 +0200
Subject: [PATCH 1190/4878] MIPS: lantiq: dma: fix burst length for DEU

[ Upstream commit 5ad74d39c51dd41b3c819f4f5396655f0629b4fd ]

The current definition of 2W burst length is invalid.
This patch fixes it. Current downstream DEU driver doesn't
use DMA. An incorrect burst length value doesn't cause any
errors. This patch also adds other burst length values.

Fixes: dfec1a827d2b ("MIPS: Lantiq: Add DMA support")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/lantiq/xway/dma.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c
index e45077aecf83a..ab13e257132af 100644
--- a/arch/mips/lantiq/xway/dma.c
+++ b/arch/mips/lantiq/xway/dma.c
@@ -40,7 +40,11 @@
 #define DMA_IRQ_ACK		0x7e		/* IRQ status register */
 #define DMA_POLL		BIT(31)		/* turn on channel polling */
 #define DMA_CLK_DIV4		BIT(6)		/* polling clock divider */
-#define DMA_2W_BURST		BIT(1)		/* 2 word burst length */
+#define DMA_PCTRL_2W_BURST	0x1		/* 2 word burst length */
+#define DMA_PCTRL_4W_BURST	0x2		/* 4 word burst length */
+#define DMA_PCTRL_8W_BURST	0x3		/* 8 word burst length */
+#define DMA_TX_BURST_SHIFT	4		/* tx burst shift */
+#define DMA_RX_BURST_SHIFT	2		/* rx burst shift */
 #define DMA_ETOP_ENDIANNESS	(0xf << 8) /* endianness swap etop channels */
 #define DMA_WEIGHT	(BIT(17) | BIT(16))	/* default channel wheight */
 
@@ -191,7 +195,8 @@ ltq_dma_init_port(int p)
 		break;
 
 	case DMA_PORT_DEU:
-		ltq_dma_w32((DMA_2W_BURST << 4) | (DMA_2W_BURST << 2),
+		ltq_dma_w32((DMA_PCTRL_2W_BURST << DMA_TX_BURST_SHIFT) |
+			(DMA_PCTRL_2W_BURST << DMA_RX_BURST_SHIFT),
 			LTQ_DMA_PCTRL);
 		break;
 
-- 
GitLab


From abf37e855e53fe5b9bd4aeda047884e6fff9e32e Mon Sep 17 00:00:00 2001
From: Josh Poimboeuf <jpoimboe@redhat.com>
Date: Thu, 21 Jan 2021 15:29:25 -0600
Subject: [PATCH 1191/4878] objtool: Add xen_start_kernel() to noreturn list

[ Upstream commit c26acfbbfbc2ae4167e33825793e85e1a53058d8 ]

xen_start_kernel() doesn't return.  Annotate it as such so objtool can
follow the code flow.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/930deafa89256c60b180442df59a1bbae48f30ab.1611263462.git.jpoimboe@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/objtool/check.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 5c83f73ad6687..ec15cadbb3d3e 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -156,6 +156,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"machine_real_restart",
 		"rewind_stack_do_exit",
 		"kunit_try_catch_throw",
+		"xen_start_kernel",
 	};
 
 	if (!func)
-- 
GitLab


From b36ab509e1817e60f73ce297494f0de1b7ed2c08 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 24 Jun 2021 11:41:00 +0200
Subject: [PATCH 1192/4878] x86/xen: Mark cpu_bringup_and_idle() as
 dead_end_function

[ Upstream commit 9af9dcf11bda3e2c0e24c1acaacb8685ad974e93 ]

The asm_cpu_bringup_and_idle() function is required to push the return
value on the stack in order to make ORC happy, but the only reason
objtool doesn't complain is because of a happy accident.

The thing is that asm_cpu_bringup_and_idle() doesn't return, so
validate_branch() never terminates and falls through to the next
function, which in the normal case is the hypercall_page. And that, as
it happens, is 4095 NOPs and a RET.

Make asm_cpu_bringup_and_idle() terminate on it's own, by making the
function it calls as a dead-end. This way we no longer rely on what
code happens to come after.

Fixes: c3881eb58d56 ("x86/xen: Make the secondary CPU idle tasks reliable")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lore.kernel.org/r/20210624095147.693801717@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/objtool/check.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index ec15cadbb3d3e..4261f93ce06f9 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -157,6 +157,7 @@ static bool __dead_end_function(struct objtool_file *file, struct symbol *func,
 		"rewind_stack_do_exit",
 		"kunit_try_catch_throw",
 		"xen_start_kernel",
+		"cpu_bringup_and_idle",
 	};
 
 	if (!func)
-- 
GitLab


From f0bc12b8482684fe4d0e48b367ca4fcb8580e81a Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 26 Mar 2021 16:12:05 +0100
Subject: [PATCH 1193/4878] objtool: Fix static_call list generation

[ Upstream commit a958c4fea768d2c378c89032ab41d38da2a24422 ]

Currently, objtool generates tail call entries in add_jump_destination()
but waits until validate_branch() to generate the regular call entries.
Move these to add_call_destination() for consistency.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lkml.kernel.org/r/20210326151259.691529901@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/objtool/check.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4261f93ce06f9..8932f41c387ff 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -954,6 +954,11 @@ static int add_call_destinations(struct objtool_file *file)
 		} else
 			insn->call_dest = reloc->sym;
 
+		if (insn->call_dest && insn->call_dest->static_call_tramp) {
+			list_add_tail(&insn->static_call_node,
+				      &file->static_call_list);
+		}
+
 		/*
 		 * Many compilers cannot disable KCOV with a function attribute
 		 * so they need a little help, NOP out any KCOV calls from noinstr
@@ -1668,6 +1673,9 @@ static int decode_sections(struct objtool_file *file)
 	if (ret)
 		return ret;
 
+	/*
+	 * Must be before add_{jump_call}_destination.
+	 */
 	ret = read_static_call_tramps(file);
 	if (ret)
 		return ret;
@@ -1680,6 +1688,10 @@ static int decode_sections(struct objtool_file *file)
 	if (ret)
 		return ret;
 
+	/*
+	 * Must be before add_call_destination(); it changes INSN_CALL to
+	 * INSN_JUMP.
+	 */
 	ret = read_intra_function_calls(file);
 	if (ret)
 		return ret;
@@ -2534,11 +2546,6 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
 			if (dead_end_function(file, insn->call_dest))
 				return 0;
 
-			if (insn->type == INSN_CALL && insn->call_dest->static_call_tramp) {
-				list_add_tail(&insn->static_call_node,
-					      &file->static_call_list);
-			}
-
 			break;
 
 		case INSN_JUMP_CONDITIONAL:
-- 
GitLab


From 582de9e38584f0578c2d2934644bc61d9247e707 Mon Sep 17 00:00:00 2001
From: Iago Toral Quiroga <itoral@igalia.com>
Date: Wed, 15 Sep 2021 12:05:07 +0200
Subject: [PATCH 1194/4878] drm/v3d: fix wait for TMU write combiner flush

[ Upstream commit e4f868191138975f2fdf2f37c11318b47db4acc9 ]

The hardware sets the TMUWCF bit back to 0 when the TMU write
combiner flush completes so we should be checking for that instead
of the L2TFLS bit.

v2 (Melissa Wen):
  - Add Signed-off-by and Fixes tags.
  - Change the error message for the timeout to be more clear.

Fixes spurious Vulkan CTS failures in:
dEQP-VK.binding_model.descriptorset_random.*

Fixes: d223f98f02099 ("drm/v3d: Add support for compute shader dispatch.")
Signed-off-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210915100507.3945-1-itoral@igalia.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/v3d/v3d_gem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 182c586525eb8..64fe63c1938f5 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -195,8 +195,8 @@ v3d_clean_caches(struct v3d_dev *v3d)
 
 	V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL, V3D_L2TCACTL_TMUWCF);
 	if (wait_for(!(V3D_CORE_READ(core, V3D_CTL_L2TCACTL) &
-		       V3D_L2TCACTL_L2TFLS), 100)) {
-		DRM_ERROR("Timeout waiting for L1T write combiner flush\n");
+		       V3D_L2TCACTL_TMUWCF), 100)) {
+		DRM_ERROR("Timeout waiting for TMU write combiner flush\n");
 	}
 
 	mutex_lock(&v3d->cache_clean_lock);
-- 
GitLab


From 38098444b7877726b49fd525a9c001f78bde97cb Mon Sep 17 00:00:00 2001
From: liuyuntao <liuyuntao10@huawei.com>
Date: Sat, 28 Aug 2021 18:43:21 +0800
Subject: [PATCH 1195/4878] virtio-gpu: fix possible memory allocation failure

[ Upstream commit 5bd4f20de8acad37dbb3154feb34dbc36d506c02 ]

When kmem_cache_zalloc in virtio_gpu_get_vbuf fails, it will return
an error code. But none of its callers checks this error code, and
a core dump will take place.

Considering many of its callers can't handle such error, I add
a __GFP_NOFAIL flag when calling kmem_cache_zalloc to make sure
it won't fail, and delete those unused error handlings.

Fixes: dc5698e80cf724 ("Add virtio gpu driver.")
Signed-off-by: Yuntao Liu <liuyuntao10@huawei.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210828104321.3410312-1-liuyuntao10@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 07945ca238e2d..5e40fa0f5e8f2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -91,9 +91,7 @@ virtio_gpu_get_vbuf(struct virtio_gpu_device *vgdev,
 {
 	struct virtio_gpu_vbuffer *vbuf;
 
-	vbuf = kmem_cache_zalloc(vgdev->vbufs, GFP_KERNEL);
-	if (!vbuf)
-		return ERR_PTR(-ENOMEM);
+	vbuf = kmem_cache_zalloc(vgdev->vbufs, GFP_KERNEL | __GFP_NOFAIL);
 
 	BUG_ON(size > MAX_INLINE_CMD_SIZE ||
 	       size < sizeof(struct virtio_gpu_ctrl_hdr));
@@ -147,10 +145,6 @@ static void *virtio_gpu_alloc_cmd_resp(struct virtio_gpu_device *vgdev,
 
 	vbuf = virtio_gpu_get_vbuf(vgdev, cmd_size,
 				   resp_size, resp_buf, cb);
-	if (IS_ERR(vbuf)) {
-		*vbuffer_p = NULL;
-		return ERR_CAST(vbuf);
-	}
 	*vbuffer_p = vbuf;
 	return (struct virtio_gpu_command *)vbuf->buf;
 }
-- 
GitLab


From fb4a58f5194e7391f4caff65041be243639ecbc5 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 3 Sep 2021 10:40:01 +0200
Subject: [PATCH 1196/4878] lockdep: Let lock_is_held_type() detect recursive
 read as read

[ Upstream commit 2507003a1d10917c9158077bf6030719d02c941e ]

lock_is_held_type(, 1) detects acquired read locks. It only recognized
locks acquired with lock_acquire_shared(). Read locks acquired with
lock_acquire_shared_recursive() are not recognized because a `2' is
stored as the read value.

Rework the check to additionally recognise lock's read value one and two
as a read held lock.

Fixes: e918188611f07 ("locking: More accurate annotations for read_lock()")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lkml.kernel.org/r/20210903084001.lblecrvz4esl4mrr@linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/locking/lockdep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 2823329143503..1f6a2f1226fa9 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -5303,7 +5303,7 @@ int __lock_is_held(const struct lockdep_map *lock, int read)
 		struct held_lock *hlock = curr->held_locks + i;
 
 		if (match_held_lock(hlock, lock)) {
-			if (read == -1 || hlock->read == read)
+			if (read == -1 || !!hlock->read == read)
 				return 1;
 
 			return 0;
-- 
GitLab


From a585e04e3472c6966fe73edd40420dad6fc911b3 Mon Sep 17 00:00:00 2001
From: Yajun Deng <yajun.deng@linux.dev>
Date: Sat, 18 Sep 2021 17:04:10 +0800
Subject: [PATCH 1197/4878] net: net_namespace: Fix undefined member in
 key_remove_domain()

[ Upstream commit aed0826b0cf2e488900ab92193893e803d65c070 ]

The key_domain member in struct net only exists if we define CONFIG_KEYS.
So we should add the define when we used key_domain.

Fixes: 9b242610514f ("keys: Network namespace domain tag")
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/net_namespace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 5c9d95f30be60..ac852db83de9f 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -486,7 +486,9 @@ struct net *copy_net_ns(unsigned long flags,
 
 	if (rv < 0) {
 put_userns:
+#ifdef CONFIG_KEYS
 		key_remove_domain(net->key_domain);
+#endif
 		put_user_ns(user_ns);
 		net_drop_ns(net);
 dec_ucounts:
@@ -618,7 +620,9 @@ static void cleanup_net(struct work_struct *work)
 	list_for_each_entry_safe(net, tmp, &net_exit_list, exit_list) {
 		list_del_init(&net->exit_list);
 		dec_net_namespaces(net->ucounts);
+#ifdef CONFIG_KEYS
 		key_remove_domain(net->key_domain);
+#endif
 		put_user_ns(net->user_ns);
 		net_drop_ns(net);
 	}
-- 
GitLab


From ba8ba7688594f3962f46d162c12bd7e20e059590 Mon Sep 17 00:00:00 2001
From: Waiman Long <longman@redhat.com>
Date: Sat, 18 Sep 2021 18:53:08 -0400
Subject: [PATCH 1198/4878] cgroup: Make rebind_subsystems() disable v2
 controllers all at once

[ Upstream commit 7ee285395b211cad474b2b989db52666e0430daf ]

It was found that the following warning was displayed when remounting
controllers from cgroup v2 to v1:

[ 8042.997778] WARNING: CPU: 88 PID: 80682 at kernel/cgroup/cgroup.c:3130 cgroup_apply_control_disable+0x158/0x190
   :
[ 8043.091109] RIP: 0010:cgroup_apply_control_disable+0x158/0x190
[ 8043.096946] Code: ff f6 45 54 01 74 39 48 8d 7d 10 48 c7 c6 e0 46 5a a4 e8 7b 67 33 00 e9 41 ff ff ff 49 8b 84 24 e8 01 00 00 0f b7 40 08 eb 95 <0f> 0b e9 5f ff ff ff 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3
[ 8043.115692] RSP: 0018:ffffba8a47c23d28 EFLAGS: 00010202
[ 8043.120916] RAX: 0000000000000036 RBX: ffffffffa624ce40 RCX: 000000000000181a
[ 8043.128047] RDX: ffffffffa63c43e0 RSI: ffffffffa63c43e0 RDI: ffff9d7284ee1000
[ 8043.135180] RBP: ffff9d72874c5800 R08: ffffffffa624b090 R09: 0000000000000004
[ 8043.142314] R10: ffffffffa624b080 R11: 0000000000002000 R12: ffff9d7284ee1000
[ 8043.149447] R13: ffff9d7284ee1000 R14: ffffffffa624ce70 R15: ffffffffa6269e20
[ 8043.156576] FS:  00007f7747cff740(0000) GS:ffff9d7a5fc00000(0000) knlGS:0000000000000000
[ 8043.164663] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8043.170409] CR2: 00007f7747e96680 CR3: 0000000887d60001 CR4: 00000000007706e0
[ 8043.177539] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8043.184673] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 8043.191804] PKRU: 55555554
[ 8043.194517] Call Trace:
[ 8043.196970]  rebind_subsystems+0x18c/0x470
[ 8043.201070]  cgroup_setup_root+0x16c/0x2f0
[ 8043.205177]  cgroup1_root_to_use+0x204/0x2a0
[ 8043.209456]  cgroup1_get_tree+0x3e/0x120
[ 8043.213384]  vfs_get_tree+0x22/0xb0
[ 8043.216883]  do_new_mount+0x176/0x2d0
[ 8043.220550]  __x64_sys_mount+0x103/0x140
[ 8043.224474]  do_syscall_64+0x38/0x90
[ 8043.228063]  entry_SYSCALL_64_after_hwframe+0x44/0xae

It was caused by the fact that rebind_subsystem() disables
controllers to be rebound one by one. If more than one disabled
controllers are originally from the default hierarchy, it means that
cgroup_apply_control_disable() will be called multiple times for the
same default hierarchy. A controller may be killed by css_kill() in
the first round. In the second round, the killed controller may not be
completely dead yet leading to the warning.

To avoid this problem, we collect all the ssid's of controllers that
needed to be disabled from the default hierarchy and then disable them
in one go instead of one by one.

Fixes: 334c3679ec4b ("cgroup: reimplement rebind_subsystems() using cgroup_apply_control() and friends")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/cgroup/cgroup.c | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 60d38e2f69dd8..a86857edaa571 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -1711,6 +1711,7 @@ int rebind_subsystems(struct cgroup_root *dst_root, u16 ss_mask)
 	struct cgroup *dcgrp = &dst_root->cgrp;
 	struct cgroup_subsys *ss;
 	int ssid, i, ret;
+	u16 dfl_disable_ss_mask = 0;
 
 	lockdep_assert_held(&cgroup_mutex);
 
@@ -1727,8 +1728,28 @@ int rebind_subsystems(struct cgroup_root *dst_root, u16 ss_mask)
 		/* can't move between two non-dummy roots either */
 		if (ss->root != &cgrp_dfl_root && dst_root != &cgrp_dfl_root)
 			return -EBUSY;
+
+		/*
+		 * Collect ssid's that need to be disabled from default
+		 * hierarchy.
+		 */
+		if (ss->root == &cgrp_dfl_root)
+			dfl_disable_ss_mask |= 1 << ssid;
+
 	} while_each_subsys_mask();
 
+	if (dfl_disable_ss_mask) {
+		struct cgroup *scgrp = &cgrp_dfl_root.cgrp;
+
+		/*
+		 * Controllers from default hierarchy that need to be rebound
+		 * are all disabled together in one go.
+		 */
+		cgrp_dfl_root.subsys_mask &= ~dfl_disable_ss_mask;
+		WARN_ON(cgroup_apply_control(scgrp));
+		cgroup_finalize_control(scgrp, 0);
+	}
+
 	do_each_subsys_mask(ss, ssid, ss_mask) {
 		struct cgroup_root *src_root = ss->root;
 		struct cgroup *scgrp = &src_root->cgrp;
@@ -1737,10 +1758,12 @@ int rebind_subsystems(struct cgroup_root *dst_root, u16 ss_mask)
 
 		WARN_ON(!css || cgroup_css(dcgrp, ss));
 
-		/* disable from the source */
-		src_root->subsys_mask &= ~(1 << ssid);
-		WARN_ON(cgroup_apply_control(scgrp));
-		cgroup_finalize_control(scgrp, 0);
+		if (src_root != &cgrp_dfl_root) {
+			/* disable from the source */
+			src_root->subsys_mask &= ~(1 << ssid);
+			WARN_ON(cgroup_apply_control(scgrp));
+			cgroup_finalize_control(scgrp, 0);
+		}
 
 		/* rebind */
 		RCU_INIT_POINTER(scgrp->subsys[ssid], NULL);
-- 
GitLab


From 3a95dbc8b7f2ff264be884027aac3801f7ce2088 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Thu, 9 Sep 2021 15:44:27 +0100
Subject: [PATCH 1199/4878] wcn36xx: Fix Antenna Diversity Switching

[ Upstream commit 701668d3bfa03dabc5095fc383d5315544ee5b31 ]

We have been tracking a strange bug with Antenna Diversity Switching (ADS)
on wcn3680b for a while.

ADS is configured like this:
   A. Via a firmware configuration table baked into the NV area.
       1. Defines if ADS is enabled.
       2. Defines which GPIOs are connected to which antenna enable pin.
       3. Defines which antenna/GPIO is primary and which is secondary.

   B. WCN36XX_CFG_VAL(ANTENNA_DIVERSITY, N)
      N is a bitmask of available antenna.

      Setting N to 3 indicates a bitmask of enabled antenna (1 | 2).

      Obviously then we can set N to 1 or N to 2 to fix to a particular
      antenna and disable antenna diversity.

   C. WCN36XX_CFG_VAL(ASD_PROBE_INTERVAL, XX)
      XX is the number of beacons between each antenna RSSI check.
      Setting this value to 50 means, every 50 received beacons, run the
      ADS algorithm.

   D. WCN36XX_CFG_VAL(ASD_TRIGGER_THRESHOLD, YY)
      YY is a two's complement integer which specifies the RSSI decibel
      threshold below which ADS will run.
      We default to -60db here, meaning a measured RSSI <= -60db will
      trigger an ADS probe.

   E. WCN36XX_CFG_VAL(ASD_RTT_RSSI_HYST_THRESHOLD, Z)
      Z is a hysteresis value, indicating a delta which the RSSI must
      exceed for the antenna switch to be valid.

      For example if HYST_THRESHOLD == 3 AntennaId1-RSSI == -60db and
      AntennaId-2-RSSI == -58db then firmware will not switch antenna.
      The threshold needs to be -57db or better to satisfy the criteria.

   F. A firmware feature bit also exists ANTENNA_DIVERSITY_SELECTION.
      This feature bit is used by the firmware to report if
      ANTENNA_DIVERSITY_SELECTION is supported. The host is not required to
      toggle this bit to enable or disable ADS.

ADS works like this:

    A. Every XX beacons the firmware switches to or remains on the primary
       antenna.

    B. The firmware then sends a Request-To-Send (RTS) packet to the AP.

    C. The firmware waits for a Clear-To-Send (CTS) response from the AP.

    D. The firmware then notes the received RSSI on the CTS packet.

    E. The firmware then repeats steps A-D on the secondary antenna.

    F. Subsequently if the RSSI on the measured antenna is better than
       ASD_TRIGGER_THRESHOLD + the active antenna's RSSI then the
       measured antenna becomes the active antenna.

    G. If RSSI rises past ASD_TRIGGER_THRESHOLD then ADS doesn't run at
       all even if there is a substantially better RSSI on the alternative
       antenna.

What we have been observing is that the RTS packet is being sent but the
MAC address is a byte-swapped version of the target MAC. The ADS/RTS MAC is
corrupted only when the link is encrypted, if the AP is open the RTS MAC is
correct. Similarly if we configure the firmware to an RTS/CTS sequence for
regular data - the transmitted RTS MAC is correctly formatted.

Internally the wcn36xx firmware uses the indexes in the SMD commands to
populate and extract data from specific entries in an STA lookup table. The
AP's MAC appears a number of times in different indexes within this lookup
table, so the MAC address extracted for the data-transmit RTS and the MAC
address extracted for the ADS/RTS packet are not the same STA table index.

Our analysis indicates the relevant firmware STA table index is
"bssSelfStaIdx".

There is an STA populate function responsible for formatting the MAC
address of the bssSelfStaIdx including byte-swapping the MAC address.

Its clear then that the required STA populate command did not run for
bssSelfStaIdx.

So taking a look at the sequence of SMD commands sent to the firmware we
see the following downstream when moving from an unencrypted to encrypted
BSS setup.

- WLAN_HAL_CONFIG_BSS_REQ
- WLAN_HAL_CONFIG_STA_REQ
- WLAN_HAL_SET_STAKEY_REQ

Upstream in wcn36xx we have

- WLAN_HAL_CONFIG_BSS_REQ
- WLAN_HAL_SET_STAKEY_REQ

The solution then is to add the missing WLAN_HAL_CONFIG_STA_REQ between
WLAN_HAL_CONFIG_BSS_REQ and WLAN_HAL_SET_STAKEY_REQ.

No surprise WLAN_HAL_CONFIG_STA_REQ is the routine responsible for
populating the STA lookup table in the firmware and once done the MAC sent
by the ADS routine is in the correct byte-order.

This bug is apparent with ADS but it is also the case that any other
firmware routine that depends on the "bssSelfStaIdx" would retrieve
malformed data on an encrypted link.

Fixes: 3e977c5c523d ("wcn36xx: Define wcn3680 specific firmware parameters")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Benjamin Li <benl@squareup.com>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210909144428.2564650-2-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 883534125df10..629ddfd74da1a 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -568,12 +568,14 @@ static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
 			sta_priv->is_data_encrypted = true;
 			/* Reconfigure bss with encrypt_type */
-			if (NL80211_IFTYPE_STATION == vif->type)
+			if (NL80211_IFTYPE_STATION == vif->type) {
 				wcn36xx_smd_config_bss(wcn,
 						       vif,
 						       sta,
 						       sta->addr,
 						       true);
+				wcn36xx_smd_config_sta(wcn, vif, sta);
+			}
 
 			wcn36xx_smd_set_stakey(wcn,
 				vif_priv->encrypt_type,
-- 
GitLab


From 310f581f54cb0a3a079fcd1436dca35f39b7ba65 Mon Sep 17 00:00:00 2001
From: Ajay Singh <ajay.kathat@microchip.com>
Date: Thu, 16 Sep 2021 16:49:18 +0000
Subject: [PATCH 1200/4878] wilc1000: fix possible memory leak in
 cfg_scan_result()

[ Upstream commit 3c719fed0f3a5e95b1d164609ecc81c4191ade70 ]

When the BSS reference holds a valid reference, it is not freed. The 'if'
condition is wrong. Instead of the 'if (bss)' check, the 'if (!bss)' check
is used.
The issue is solved by removing the unnecessary 'if' check because
cfg80211_put_bss() already performs the NULL validation.

Fixes: 6cd4fa5ab691 ("staging: wilc1000: make use of cfg80211_inform_bss_frame()")
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210916164902.74629-3-ajay.kathat@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/microchip/wilc1000/cfg80211.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index c1ac1d84790f0..6be5ac8ba518d 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -129,8 +129,7 @@ static void cfg_scan_result(enum scan_event scan_event,
 						info->frame_len,
 						(s32)info->rssi * 100,
 						GFP_KERNEL);
-		if (!bss)
-			cfg80211_put_bss(wiphy, bss);
+		cfg80211_put_bss(wiphy, bss);
 	} else if (scan_event == SCAN_EVENT_DONE) {
 		mutex_lock(&priv->scan_req_lock);
 
-- 
GitLab


From f0b40bf3e48a5af722b2d60adade5562e481904c Mon Sep 17 00:00:00 2001
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Wed, 22 Sep 2021 21:49:45 +0800
Subject: [PATCH 1201/4878] Bluetooth: btmtkuart: fix a memleak in
 mtk_hci_wmt_sync

[ Upstream commit 3e5f2d90c28f9454e421108554707620bc23269d ]

bdev->evt_skb will get freed in the normal path and one error path
of mtk_hci_wmt_sync, while the other error paths do not free it,
which may cause a memleak. This bug is suggested by a static analysis
tool, please advise.

Fixes: e0b67035a90b ("Bluetooth: mediatek: update the common setup between MT7622 and other devices")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/btmtkuart.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index 6c40bc75fb5b8..719d4685a2ddd 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -158,8 +158,10 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
 	int err;
 
 	hlen = sizeof(*hdr) + wmt_params->dlen;
-	if (hlen > 255)
-		return -EINVAL;
+	if (hlen > 255) {
+		err = -EINVAL;
+		goto err_free_skb;
+	}
 
 	hdr = (struct mtk_wmt_hdr *)&wc;
 	hdr->dir = 1;
@@ -173,7 +175,7 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
 	err = __hci_cmd_send(hdev, 0xfc6f, hlen, &wc);
 	if (err < 0) {
 		clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
-		return err;
+		goto err_free_skb;
 	}
 
 	/* The vendor specific WMT commands are all answered by a vendor
@@ -190,13 +192,14 @@ static int mtk_hci_wmt_sync(struct hci_dev *hdev,
 	if (err == -EINTR) {
 		bt_dev_err(hdev, "Execution of wmt command interrupted");
 		clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
-		return err;
+		goto err_free_skb;
 	}
 
 	if (err) {
 		bt_dev_err(hdev, "Execution of wmt command timed out");
 		clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
-		return -ETIMEDOUT;
+		err = -ETIMEDOUT;
+		goto err_free_skb;
 	}
 
 	/* Parse and handle the return WMT event */
-- 
GitLab


From 03725f7125db81c45544f29dd66d313f4a52f8cd Mon Sep 17 00:00:00 2001
From: Michael Walle <michael@walle.cc>
Date: Thu, 16 Sep 2021 00:03:07 +0200
Subject: [PATCH 1202/4878] crypto: caam - disable pkc for non-E SoCs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f20311cc9c58052e0b215013046cbf390937910c ]

On newer CAAM versions, not all accelerators are disabled if the SoC is
a non-E variant. While the driver checks most of the modules for
availability, there is one - PKHA - which sticks out. On non-E variants
it is still reported as available, that is the number of instances is
non-zero, but it has limited functionality. In particular it doesn't
support encryption and decryption, but just signing and verifying. This
is indicated by a bit in the PKHA_MISC field. Take this bit into account
if we are checking for availability.

This will the following error:
[    8.167817] caam_jr 8020000.jr: 20000b0f: CCB: desc idx 11: : Invalid CHA selected.

Tested on an NXP LS1028A (non-E) SoC.

Fixes: d239b10d4ceb ("crypto: caam - add register map changes cf. Era 10")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/caam/caampkc.c | 19 +++++++++++++++----
 drivers/crypto/caam/regs.h    |  3 +++
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index dd5f101e43f83..3acc825da4cca 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -1152,16 +1152,27 @@ static struct caam_akcipher_alg caam_rsa = {
 int caam_pkc_init(struct device *ctrldev)
 {
 	struct caam_drv_private *priv = dev_get_drvdata(ctrldev);
-	u32 pk_inst;
+	u32 pk_inst, pkha;
 	int err;
 	init_done = false;
 
 	/* Determine public key hardware accelerator presence. */
-	if (priv->era < 10)
+	if (priv->era < 10) {
 		pk_inst = (rd_reg32(&priv->ctrl->perfmon.cha_num_ls) &
 			   CHA_ID_LS_PK_MASK) >> CHA_ID_LS_PK_SHIFT;
-	else
-		pk_inst = rd_reg32(&priv->ctrl->vreg.pkha) & CHA_VER_NUM_MASK;
+	} else {
+		pkha = rd_reg32(&priv->ctrl->vreg.pkha);
+		pk_inst = pkha & CHA_VER_NUM_MASK;
+
+		/*
+		 * Newer CAAMs support partially disabled functionality. If this is the
+		 * case, the number is non-zero, but this bit is set to indicate that
+		 * no encryption or decryption is supported. Only signing and verifying
+		 * is supported.
+		 */
+		if (pkha & CHA_VER_MISC_PKHA_NO_CRYPT)
+			pk_inst = 0;
+	}
 
 	/* Do not register algorithms if PKHA is not present. */
 	if (!pk_inst)
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index af61f3a2c0d46..3738625c02509 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -322,6 +322,9 @@ struct version_regs {
 /* CHA Miscellaneous Information - AESA_MISC specific */
 #define CHA_VER_MISC_AES_GCM	BIT(1 + CHA_VER_MISC_SHIFT)
 
+/* CHA Miscellaneous Information - PKHA_MISC specific */
+#define CHA_VER_MISC_PKHA_NO_CRYPT	BIT(7 + CHA_VER_MISC_SHIFT)
+
 /*
  * caam_perfmon - Performance Monitor/Secure Memory Status/
  *                CAAM Global Status/Component Version IDs
-- 
GitLab


From 78fb8c99924291d8f1d1366e467b609c30b7f7f6 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Fri, 24 Sep 2021 03:18:37 +0000
Subject: [PATCH 1203/4878] rxrpc: Fix _usecs_to_jiffies() by using
 usecs_to_jiffies()

[ Upstream commit acde891c243c1ed85b19d4d5042bdf00914f5739 ]

Directly using _usecs_to_jiffies() might be unsafe, so it's
better to use usecs_to_jiffies() instead.
Because we can see that the result of _usecs_to_jiffies()
could be larger than MAX_JIFFY_OFFSET values without the
check of the input.

Fixes: c410bf01933e ("Fix the excessive initial retransmission timeout")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rxrpc/rtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/rxrpc/rtt.c b/net/rxrpc/rtt.c
index 4e565eeab4260..be61d6f5be8d1 100644
--- a/net/rxrpc/rtt.c
+++ b/net/rxrpc/rtt.c
@@ -22,7 +22,7 @@ static u32 rxrpc_rto_min_us(struct rxrpc_peer *peer)
 
 static u32 __rxrpc_set_rto(const struct rxrpc_peer *peer)
 {
-	return _usecs_to_jiffies((peer->srtt_us >> 3) + peer->rttvar_us);
+	return usecs_to_jiffies((peer->srtt_us >> 3) + peer->rttvar_us);
 }
 
 static u32 rxrpc_bound_rto(u32 rto)
-- 
GitLab


From 9833cb32066a35894b28d56441662aedd7bbcf02 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 26 Sep 2021 00:59:27 +0200
Subject: [PATCH 1204/4878] net: dsa: rtl8366rb: Fix off-by-one bug
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 5f5f12f5d4b108399130bb5c11f07765851d9cdb ]

The max VLAN number with non-4K VLAN activated is 15, and the
range is 0..15. Not 16.

The impact should be low since we by default have 4K VLAN and
thus have 4095 VLANs to play with in this switch. There will
not be a problem unless the code is rewritten to only use
16 VLANs.

Fixes: d8652956cf37 ("net: dsa: realtek-smi: Add Realtek SMI driver")
Cc: Mauri Sandberg <sandberg@mailfence.com>
Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/rtl8366rb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c
index cfe56960f44b9..12d7e5cd31974 100644
--- a/drivers/net/dsa/rtl8366rb.c
+++ b/drivers/net/dsa/rtl8366rb.c
@@ -1343,7 +1343,7 @@ static int rtl8366rb_set_mc_index(struct realtek_smi *smi, int port, int index)
 
 static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan)
 {
-	unsigned int max = RTL8366RB_NUM_VLANS;
+	unsigned int max = RTL8366RB_NUM_VLANS - 1;
 
 	if (smi->vlan4k_enabled)
 		max = RTL8366RB_NUM_VIDS - 1;
-- 
GitLab


From ac49af173c6424951e9816486493a7d8b0414ae5 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 28 Sep 2021 12:05:43 +0300
Subject: [PATCH 1205/4878] ath11k: fix some sleeping in atomic bugs

[ Upstream commit aadf7c81a0771b8f1c97dabca6a48bae1b387779 ]

The ath11k_dbring_bufs_replenish() and ath11k_dbring_fill_bufs()
take a "gfp" parameter but they since they take spinlocks, the
allocations they do have to be atomic.  This causes a bug because
ath11k_dbring_buf_setup passes GFP_KERNEL for the gfp flags.

The fix is to use GFP_ATOMIC and remove the unused parameters.

Fixes: bd6478559e27 ("ath11k: Add direct buffer ring support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210812070434.GE31863@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/dbring.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dbring.c b/drivers/net/wireless/ath/ath11k/dbring.c
index 5e1f5437b4185..fd98ba5b1130b 100644
--- a/drivers/net/wireless/ath/ath11k/dbring.c
+++ b/drivers/net/wireless/ath/ath11k/dbring.c
@@ -8,8 +8,7 @@
 
 static int ath11k_dbring_bufs_replenish(struct ath11k *ar,
 					struct ath11k_dbring *ring,
-					struct ath11k_dbring_element *buff,
-					gfp_t gfp)
+					struct ath11k_dbring_element *buff)
 {
 	struct ath11k_base *ab = ar->ab;
 	struct hal_srng *srng;
@@ -35,7 +34,7 @@ static int ath11k_dbring_bufs_replenish(struct ath11k *ar,
 		goto err;
 
 	spin_lock_bh(&ring->idr_lock);
-	buf_id = idr_alloc(&ring->bufs_idr, buff, 0, ring->bufs_max, gfp);
+	buf_id = idr_alloc(&ring->bufs_idr, buff, 0, ring->bufs_max, GFP_ATOMIC);
 	spin_unlock_bh(&ring->idr_lock);
 	if (buf_id < 0) {
 		ret = -ENOBUFS;
@@ -72,8 +71,7 @@ err:
 }
 
 static int ath11k_dbring_fill_bufs(struct ath11k *ar,
-				   struct ath11k_dbring *ring,
-				   gfp_t gfp)
+				   struct ath11k_dbring *ring)
 {
 	struct ath11k_dbring_element *buff;
 	struct hal_srng *srng;
@@ -92,11 +90,11 @@ static int ath11k_dbring_fill_bufs(struct ath11k *ar,
 	size = sizeof(*buff) + ring->buf_sz + align - 1;
 
 	while (num_remain > 0) {
-		buff = kzalloc(size, gfp);
+		buff = kzalloc(size, GFP_ATOMIC);
 		if (!buff)
 			break;
 
-		ret = ath11k_dbring_bufs_replenish(ar, ring, buff, gfp);
+		ret = ath11k_dbring_bufs_replenish(ar, ring, buff);
 		if (ret) {
 			ath11k_warn(ar->ab, "failed to replenish db ring num_remain %d req_ent %d\n",
 				    num_remain, req_entries);
@@ -176,7 +174,7 @@ int ath11k_dbring_buf_setup(struct ath11k *ar,
 	ring->hp_addr = ath11k_hal_srng_get_hp_addr(ar->ab, srng);
 	ring->tp_addr = ath11k_hal_srng_get_tp_addr(ar->ab, srng);
 
-	ret = ath11k_dbring_fill_bufs(ar, ring, GFP_KERNEL);
+	ret = ath11k_dbring_fill_bufs(ar, ring);
 
 	return ret;
 }
@@ -322,7 +320,7 @@ int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
 		}
 
 		memset(buff, 0, size);
-		ath11k_dbring_bufs_replenish(ar, ring, buff, GFP_ATOMIC);
+		ath11k_dbring_bufs_replenish(ar, ring, buff);
 	}
 
 	spin_unlock_bh(&srng->lock);
-- 
GitLab


From b6a46ec871ea7ab90a3f67cd3e0054f270125de1 Mon Sep 17 00:00:00 2001
From: Sriram R <srirrama@codeaurora.org>
Date: Tue, 28 Sep 2021 12:05:40 +0300
Subject: [PATCH 1206/4878] ath11k: Avoid race during regd updates

[ Upstream commit 1db2b0d0a39102238fcbf9092cefa65a710642e9 ]

Whenever ath11k is bootup with a user country already set, cfg80211
notifies this country info to ath11k soon after registration, where the
notification is sent to the firmware for fetching the rules of this user
country input.

Multiple race conditions could be seen in this scenario where a new
request is either lost as pointed in [1] or a new regd overwrites the
default regd provided by the firmware during bootup. Note that, the
default regd is used for intersection purpose and hence it should not be
overwritten.

The main reason as pointed by [1] is the usage of ATH11K_FLAG_REGISTERED
flag which is updated after completion of core registration, whereas the
reg notification from cfg80211 and wmi events for the corresponding
request can happen much before that. Since the ATH11K_FLAG_REGISTERED is
currently used to determine if the event containing reg rules belong to
default regd or for user request, there is a possibility of the default
regd getting overwritten.

Since the default reg rules will be received only once per pdev on
firmware load, the above flag based check can be replaced with a check
to see if default_regd is already set, so that we can now always update
the new_regd. Also if the new_regd is set, this will be always used to
update the reg rules for the registered phy.

[1] https://patchwork.kernel.org/project/linux-wireless/patch/1829665.1PRlr7bOQj@ripper/

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01460-QCAHKSWPL_SILICONZ-1
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-4-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c |  2 +-
 drivers/net/wireless/ath/ath11k/reg.c | 11 ++++++-----
 drivers/net/wireless/ath/ath11k/reg.h |  2 +-
 drivers/net/wireless/ath/ath11k/wmi.c | 16 ++++++----------
 4 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 63d70aecbd0f1..0924bc8b35205 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -6320,7 +6320,7 @@ static int __ath11k_mac_register(struct ath11k *ar)
 		ar->hw->wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MONITOR);
 
 	/* Apply the regd received during initialization */
-	ret = ath11k_regd_update(ar, true);
+	ret = ath11k_regd_update(ar);
 	if (ret) {
 		ath11k_err(ar->ab, "ath11k regd update failed: %d\n", ret);
 		goto err_unregister_hw;
diff --git a/drivers/net/wireless/ath/ath11k/reg.c b/drivers/net/wireless/ath/ath11k/reg.c
index 678d0885fcee7..b8f9f34408879 100644
--- a/drivers/net/wireless/ath/ath11k/reg.c
+++ b/drivers/net/wireless/ath/ath11k/reg.c
@@ -198,7 +198,7 @@ static void ath11k_copy_regd(struct ieee80211_regdomain *regd_orig,
 		       sizeof(struct ieee80211_reg_rule));
 }
 
-int ath11k_regd_update(struct ath11k *ar, bool init)
+int ath11k_regd_update(struct ath11k *ar)
 {
 	struct ieee80211_regdomain *regd, *regd_copy = NULL;
 	int ret, regd_len, pdev_id;
@@ -209,7 +209,10 @@ int ath11k_regd_update(struct ath11k *ar, bool init)
 
 	spin_lock_bh(&ab->base_lock);
 
-	if (init) {
+	/* Prefer the latest regd update over default if it's available */
+	if (ab->new_regd[pdev_id]) {
+		regd = ab->new_regd[pdev_id];
+	} else {
 		/* Apply the regd received during init through
 		 * WMI_REG_CHAN_LIST_CC event. In case of failure to
 		 * receive the regd, initialize with a default world
@@ -222,8 +225,6 @@ int ath11k_regd_update(struct ath11k *ar, bool init)
 				    "failed to receive default regd during init\n");
 			regd = (struct ieee80211_regdomain *)&ath11k_world_regd;
 		}
-	} else {
-		regd = ab->new_regd[pdev_id];
 	}
 
 	if (!regd) {
@@ -680,7 +681,7 @@ void ath11k_regd_update_work(struct work_struct *work)
 					 regd_update_work);
 	int ret;
 
-	ret = ath11k_regd_update(ar, false);
+	ret = ath11k_regd_update(ar);
 	if (ret) {
 		/* Firmware has already moved to the new regd. We need
 		 * to maintain channel consistency across FW, Host driver
diff --git a/drivers/net/wireless/ath/ath11k/reg.h b/drivers/net/wireless/ath/ath11k/reg.h
index 39b7fc9435415..7dbbba9fae1d2 100644
--- a/drivers/net/wireless/ath/ath11k/reg.h
+++ b/drivers/net/wireless/ath/ath11k/reg.h
@@ -30,6 +30,6 @@ void ath11k_regd_update_work(struct work_struct *work);
 struct ieee80211_regdomain *
 ath11k_reg_build_regd(struct ath11k_base *ab,
 		      struct cur_regulatory_info *reg_info, bool intersect);
-int ath11k_regd_update(struct ath11k *ar, bool init);
+int ath11k_regd_update(struct ath11k *ar);
 int ath11k_reg_update_chan_list(struct ath11k *ar);
 #endif
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index cf0f778b0cbc9..e17419c8dde0d 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5410,10 +5410,10 @@ static int ath11k_reg_chan_list_event(struct ath11k_base *ab, struct sk_buff *sk
 	}
 
 	spin_lock(&ab->base_lock);
-	if (test_bit(ATH11K_FLAG_REGISTERED, &ab->dev_flags)) {
-		/* Once mac is registered, ar is valid and all CC events from
-		 * fw is considered to be received due to user requests
-		 * currently.
+	if (ab->default_regd[pdev_idx]) {
+		/* The initial rules from FW after WMI Init is to build
+		 * the default regd. From then on, any rules updated for
+		 * the pdev could be due to user reg changes.
 		 * Free previously built regd before assigning the newly
 		 * generated regd to ar. NULL pointer handling will be
 		 * taken care by kfree itself.
@@ -5423,13 +5423,9 @@ static int ath11k_reg_chan_list_event(struct ath11k_base *ab, struct sk_buff *sk
 		ab->new_regd[pdev_idx] = regd;
 		ieee80211_queue_work(ar->hw, &ar->regd_update_work);
 	} else {
-		/* Multiple events for the same *ar is not expected. But we
-		 * can still clear any previously stored default_regd if we
-		 * are receiving this event for the same radio by mistake.
-		 * NULL pointer handling will be taken care by kfree itself.
+		/* This regd would be applied during mac registration and is
+		 * held constant throughout for regd intersection purpose
 		 */
-		kfree(ab->default_regd[pdev_idx]);
-		/* This regd would be applied during mac registration */
 		ab->default_regd[pdev_idx] = regd;
 	}
 	ab->dfs_region = reg_info->dfs_region;
-- 
GitLab


From 4519fb910555453d2b5589dd0ff42a298e95583e Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 28 Sep 2021 14:00:43 +0300
Subject: [PATCH 1207/4878] ath11k: fix packet drops due to incorrect 6 GHz
 freq value in rx status

[ Upstream commit 9d6ae1f5cf733c0e8d7f904c501fd015c4b9f0f4 ]

Frequency in rx status is being filled incorrectly in the 6 GHz band as
channel number received is invalid in this case which is causing packet
drops. So fix that.

Fixes: 5dcf42f8b79d ("ath11k: Use freq instead of channel number in rx path")
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210722102054.43419-2-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/dp_rx.c |  9 ++++++---
 drivers/net/wireless/ath/ath11k/wmi.c   | 10 +++++++---
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 7d6fd8155bb22..2e77dca6b1ad6 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2303,8 +2303,10 @@ static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_rx_desc *rx_desc,
 	channel_num = ath11k_dp_rx_h_msdu_start_freq(rx_desc);
 	center_freq = ath11k_dp_rx_h_msdu_start_freq(rx_desc) >> 16;
 
-	if (center_freq >= 5935 && center_freq <= 7105) {
+	if (center_freq >= ATH11K_MIN_6G_FREQ &&
+	    center_freq <= ATH11K_MAX_6G_FREQ) {
 		rx_status->band = NL80211_BAND_6GHZ;
+		rx_status->freq = center_freq;
 	} else if (channel_num >= 1 && channel_num <= 14) {
 		rx_status->band = NL80211_BAND_2GHZ;
 	} else if (channel_num >= 36 && channel_num <= 173) {
@@ -2322,8 +2324,9 @@ static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_rx_desc *rx_desc,
 				rx_desc, sizeof(struct hal_rx_desc));
 	}
 
-	rx_status->freq = ieee80211_channel_to_frequency(channel_num,
-							 rx_status->band);
+	if (rx_status->band != NL80211_BAND_6GHZ)
+		rx_status->freq = ieee80211_channel_to_frequency(channel_num,
+								 rx_status->band);
 
 	ath11k_dp_rx_h_rate(ar, rx_desc, rx_status);
 }
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index e17419c8dde0d..74ebe8e7d1d81 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5668,8 +5668,10 @@ static void ath11k_mgmt_rx_event(struct ath11k_base *ab, struct sk_buff *skb)
 	if (rx_ev.status & WMI_RX_STATUS_ERR_MIC)
 		status->flag |= RX_FLAG_MMIC_ERROR;
 
-	if (rx_ev.chan_freq >= ATH11K_MIN_6G_FREQ) {
+	if (rx_ev.chan_freq >= ATH11K_MIN_6G_FREQ &&
+	    rx_ev.chan_freq <= ATH11K_MAX_6G_FREQ) {
 		status->band = NL80211_BAND_6GHZ;
+		status->freq = rx_ev.chan_freq;
 	} else if (rx_ev.channel >= 1 && rx_ev.channel <= 14) {
 		status->band = NL80211_BAND_2GHZ;
 	} else if (rx_ev.channel >= 36 && rx_ev.channel <= ATH11K_MAX_5G_CHAN) {
@@ -5690,8 +5692,10 @@ static void ath11k_mgmt_rx_event(struct ath11k_base *ab, struct sk_buff *skb)
 
 	sband = &ar->mac.sbands[status->band];
 
-	status->freq = ieee80211_channel_to_frequency(rx_ev.channel,
-						      status->band);
+	if (status->band != NL80211_BAND_6GHZ)
+		status->freq = ieee80211_channel_to_frequency(rx_ev.channel,
+							      status->band);
+
 	status->signal = rx_ev.snr + ATH11K_DEFAULT_NOISE_FLOOR;
 	status->rate_idx = ath11k_mac_bitrate_to_idx(sband, rx_ev.rate / 100);
 
-- 
GitLab


From 08fb0008d90ba34eba72291bf3e356c58fe38337 Mon Sep 17 00:00:00 2001
From: Baochen Qiang <bqiang@codeaurora.org>
Date: Tue, 28 Sep 2021 14:00:44 +0300
Subject: [PATCH 1208/4878] ath11k: Fix memory leak in
 ath11k_qmi_driver_event_work

[ Upstream commit 72de799aa9e3e064b35238ef053d2f0a49db055a ]

The buffer pointed to by event is not freed in case
ATH11K_FLAG_UNREGISTERING bit is set, resulting in
memory leak, so fix it.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913180246.193388-4-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/qmi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c
index 2ae7c6bf091e9..c842e275d1adf 100644
--- a/drivers/net/wireless/ath/ath11k/qmi.c
+++ b/drivers/net/wireless/ath/ath11k/qmi.c
@@ -2616,8 +2616,10 @@ static void ath11k_qmi_driver_event_work(struct work_struct *work)
 		list_del(&event->list);
 		spin_unlock(&qmi->event_lock);
 
-		if (test_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags))
+		if (test_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags)) {
+			kfree(event);
 			return;
+		}
 
 		switch (event->type) {
 		case ATH11K_QMI_EVENT_SERVER_ARRIVE:
-- 
GitLab


From ffed645538179fce6f05557fd89b7e2f8a8120de Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Tue, 28 Sep 2021 14:00:47 +0300
Subject: [PATCH 1209/4878] ath10k: Fix missing frame timestamp for
 beacon/probe-resp

[ Upstream commit e6dfbc3ba90cc2b619229be56b485f085a0a8e1c ]

When receiving a beacon or probe response, we should update the
boottime_ns field which is the timestamp the frame was received at.
(cf mac80211.h)

This fixes a scanning issue with Android since it relies on this
timestamp to determine when the AP has been seen for the last time
(via the nl80211 BSS_LAST_SEEN_BOOTTIME parameter).

Fixes: 5e3dd157d7e7 ("ath10k: mac80211 driver for Qualcomm Atheros 802.11ac CQA98xx devices")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1629811733-7927-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 37b53af760d76..85fe855ece097 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2610,6 +2610,10 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
 	if (ieee80211_is_beacon(hdr->frame_control))
 		ath10k_mac_handle_beacon(ar, skb);
 
+	if (ieee80211_is_beacon(hdr->frame_control) ||
+	    ieee80211_is_probe_resp(hdr->frame_control))
+		status->boottime_ns = ktime_get_boottime_ns();
+
 	ath10k_dbg(ar, ATH10K_DBG_MGMT,
 		   "event mgmt rx skb %pK len %d ftype %02x stype %02x\n",
 		   skb, skb->len,
-- 
GitLab


From c39154d3d62316bcd24b0e8eda8d6569e2c67495 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@denx.de>
Date: Tue, 28 Sep 2021 14:00:47 +0300
Subject: [PATCH 1210/4878] ath10k: sdio: Add missing BH locking around
 napi_schdule()

[ Upstream commit 019edd01d174ce4bb2e517dd332922514d176601 ]

On a i.MX-based board with a QCA9377 Wifi chip, the following errors
are seen after launching the 'hostapd' application:

hostapd /etc/wifi.conf
Configuration file: /etc/wifi.conf
wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
Using interface wlan0 with hwaddr 00:1f:7b:31:04:a0 and ssid "thessid"
IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
wlan0: interface state COUNTRY_UPDATE->ENABLED
wlan0: AP-ENABLED
NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
...

Fix this problem by adding the BH locking around napi-schedule(),
in the same way it was done in commit e63052a5dd3c ("mlx5e: add
add missing BH locking around napi_schdule()").

Its commit log provides the following explanation:

"It's not correct to call napi_schedule() in pure process
context. Because we use __raise_softirq_irqoff() we require
callers to be in a context which will eventually lead to
softirq handling (hardirq, bh disabled, etc.).

With code as is users will see:

NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
"

Fixes: cfee8793a74d ("ath10k: enable napi on RX path for sdio")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210824144339.2796122-1-festevam@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/sdio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 81ddaafb6721c..0fe639710a8bb 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -1363,8 +1363,11 @@ static void ath10k_rx_indication_async_work(struct work_struct *work)
 		ep->ep_ops.ep_rx_complete(ar, skb);
 	}
 
-	if (test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags))
+	if (test_bit(ATH10K_FLAG_CORE_REGISTERED, &ar->dev_flags)) {
+		local_bh_disable();
 		napi_schedule(&ar->napi);
+		local_bh_enable();
+	}
 }
 
 static int ath10k_sdio_read_rtc_state(struct ath10k_sdio *ar_sdio, unsigned char *state)
-- 
GitLab


From cbbf816cb7f9a84696b1f6277fee85c67a1c590c Mon Sep 17 00:00:00 2001
From: Matthew Auld <matthew.auld@intel.com>
Date: Mon, 27 Sep 2021 12:41:02 +0100
Subject: [PATCH 1211/4878] drm/ttm: stop calling tt_swapin in vm_access
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f5d28856b89baab4232a9f841e565763fcebcdf9 ]

In commit:

commit 09ac4fcb3f255e9225967c75f5893325c116cdbe
Author: Felix Kuehling <Felix.Kuehling@amd.com>
Date:   Thu Jul 13 17:01:16 2017 -0400

    drm/ttm: Implement vm_operations_struct.access v2

we added the vm_access hook, where we also directly call tt_swapin for
some reason. If something is swapped-out then the ttm_tt must also be
unpopulated, and since access_kmap should also call tt_populate, if
needed, then swapping-in will already be handled there.

If anything, calling tt_swapin directly here would likely always fail
since the tt->pages won't yet be populated, or worse since the tt->pages
array is never actually cleared in unpopulate this might lead to a nasty
uaf.

Fixes: 09ac4fcb3f25 ("drm/ttm: Implement vm_operations_struct.access v2")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210927114114.152310-1-matthew.auld@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/ttm/ttm_bo_vm.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 98a006fc30a58..0b1daf442425f 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -500,11 +500,6 @@ int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
 
 	switch (bo->mem.mem_type) {
 	case TTM_PL_SYSTEM:
-		if (unlikely(bo->ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)) {
-			ret = ttm_tt_swapin(bo->ttm);
-			if (unlikely(ret != 0))
-				return ret;
-		}
 		fallthrough;
 	case TTM_PL_TT:
 		ret = ttm_bo_vm_access_kmap(bo, offset, buf, len, write);
-- 
GitLab


From 8980f9d14481606d82a8643aee6f6d0d97fc0ea7 Mon Sep 17 00:00:00 2001
From: Sudarshan Rajagopalan <quic_sudaraja@quicinc.com>
Date: Tue, 28 Sep 2021 11:51:49 -0700
Subject: [PATCH 1212/4878] arm64: mm: update max_pfn after memory hotplug

[ Upstream commit 8fac67ca236b961b573355e203dbaf62a706a2e5 ]

After new memory blocks have been hotplugged, max_pfn and max_low_pfn
needs updating to reflect on new PFNs being hot added to system.
Without this patch, debug-related functions that use max_pfn such as
get_max_dump_pfn() or read_page_owner() will not work with any page in
memory that is hot-added after boot.

Fixes: 4ab215061554 ("arm64: Add memory hotplug support")
Signed-off-by: Sudarshan Rajagopalan <quic_sudaraja@quicinc.com>
Signed-off-by: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Georgi Djakov <quic_c_gdjako@quicinc.com>
Tested-by: Georgi Djakov <quic_c_gdjako@quicinc.com>
Link: https://lore.kernel.org/r/a51a27ee7be66024b5ce626310d673f24107bcb8.1632853776.git.quic_cgoldswo@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/mm/mmu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 58dc93e566179..2601a514d8c4a 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1492,6 +1492,11 @@ int arch_add_memory(int nid, u64 start, u64 size,
 	if (ret)
 		__remove_pgd_mapping(swapper_pg_dir,
 				     __phys_to_virt(start), size);
+	else {
+		max_pfn = PFN_UP(start + size);
+		max_low_pfn = max_pfn;
+	}
+
 	return ret;
 }
 
-- 
GitLab


From 375150b3aaf8cf7d01f6f0b582e264dd2fded814 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 27 Sep 2021 14:58:10 +0200
Subject: [PATCH 1213/4878] drm/amdgpu: fix warning for overflow check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 335aea75b0d95518951cad7c4c676e6f1c02c150 ]

The overflow check in amdgpu_bo_list_create() causes a warning with
clang-14 on 64-bit architectures, since the limit can never be
exceeded.

drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c:74:18: error: result of comparison of constant 256204778801521549 with expression of type 'unsigned int' is always false [-Werror,-Wtautological-constant-out-of-range-compare]
        if (num_entries > (SIZE_MAX - sizeof(struct amdgpu_bo_list))
            ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The check remains useful for 32-bit architectures, so just avoid the
warning by using size_t as the type for the count.

Fixes: 920990cb080a ("drm/amdgpu: allocate the bo_list array after the list")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index 15c45b2a39835..714178f1b6c6e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -61,7 +61,7 @@ static void amdgpu_bo_list_free(struct kref *ref)
 
 int amdgpu_bo_list_create(struct amdgpu_device *adev, struct drm_file *filp,
 			  struct drm_amdgpu_bo_list_entry *info,
-			  unsigned num_entries, struct amdgpu_bo_list **result)
+			  size_t num_entries, struct amdgpu_bo_list **result)
 {
 	unsigned last_entry = 0, first_userptr = num_entries;
 	struct amdgpu_bo_list_entry *array;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h
index a130e766cbdbe..529d52a204cf4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.h
@@ -60,7 +60,7 @@ int amdgpu_bo_create_list_entry_array(struct drm_amdgpu_bo_list_in *in,
 int amdgpu_bo_list_create(struct amdgpu_device *adev,
 				 struct drm_file *filp,
 				 struct drm_amdgpu_bo_list_entry *info,
-				 unsigned num_entries,
+				 size_t num_entries,
 				 struct amdgpu_bo_list **list);
 
 static inline struct amdgpu_bo_list_entry *
-- 
GitLab


From 4303b39b50758613ef45990440488a46febe4df9 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Thu, 29 Jul 2021 22:23:33 +0200
Subject: [PATCH 1214/4878] media: em28xx: add missing em28xx_close_extension

[ Upstream commit 2c98b8a3458df03abdc6945bbef67ef91d181938 ]

If em28xx dev has ->dev_next pointer, we need to delete ->dev_next list
node from em28xx_extension_devlist on disconnect to avoid UAF bugs and
corrupted list bugs, since driver frees this pointer on disconnect.

Reported-and-tested-by: syzbot+a6969ef522a36d3344c9@syzkaller.appspotmail.com

Fixes: 1a23f81b7dc3 ("V4L/DVB (9979): em28xx: move usb probe code to a proper place")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/em28xx/em28xx-cards.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 5144888ae36f7..cf45cc566cbe2 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -4089,8 +4089,11 @@ static void em28xx_usb_disconnect(struct usb_interface *intf)
 
 	em28xx_close_extension(dev);
 
-	if (dev->dev_next)
+	if (dev->dev_next) {
+		em28xx_close_extension(dev->dev_next);
 		em28xx_release_resources(dev->dev_next);
+	}
+
 	em28xx_release_resources(dev);
 
 	if (dev->dev_next) {
-- 
GitLab


From 0a85325fc565d51beb94ad2c524dfba95f06371a Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Tue, 20 Jul 2021 18:07:49 +0200
Subject: [PATCH 1215/4878] media: cxd2880-spi: Fix a null pointer dereference
 on error handling path

[ Upstream commit 11b982e950d2138e90bd120501df10a439006ff8 ]

Currently the null pointer check on dvb_spi->vcc_supply is inverted and
this leads to only null values of the dvb_spi->vcc_supply being passed
to the call of regulator_disable causing null pointer dereferences.
Fix this by only calling regulator_disable if dvb_spi->vcc_supply is
not null.

Addresses-Coverity: ("Dereference after null check")

Fixes: dcb014582101 ("media: cxd2880-spi: Fix an error handling path")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/spi/cxd2880-spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/spi/cxd2880-spi.c b/drivers/media/spi/cxd2880-spi.c
index 93194f03764d2..11273be702b6e 100644
--- a/drivers/media/spi/cxd2880-spi.c
+++ b/drivers/media/spi/cxd2880-spi.c
@@ -618,7 +618,7 @@ fail_frontend:
 fail_attach:
 	dvb_unregister_adapter(&dvb_spi->adapter);
 fail_adapter:
-	if (!dvb_spi->vcc_supply)
+	if (dvb_spi->vcc_supply)
 		regulator_disable(dvb_spi->vcc_supply);
 fail_regulator:
 	kfree(dvb_spi);
-- 
GitLab


From e2f3608a0b5075774a422bf56745f56fc90a0f28 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Fri, 13 Aug 2021 16:34:20 +0200
Subject: [PATCH 1216/4878] media: dvb-usb: fix ununit-value in az6027_rc_query

[ Upstream commit afae4ef7d5ad913cab1316137854a36bea6268a5 ]

Syzbot reported ununit-value bug in az6027_rc_query(). The problem was
in missing state pointer initialization. Since this function does nothing
we can simply initialize state to REMOTE_NO_KEY_PRESSED.

Reported-and-tested-by: syzbot+2cd8c5db4a85f0a04142@syzkaller.appspotmail.com

Fixes: 76f9a820c867 ("V4L/DVB: AZ6027: Initial import of the driver")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/dvb-usb/az6027.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/usb/dvb-usb/az6027.c b/drivers/media/usb/dvb-usb/az6027.c
index 1c39b61cde29b..86788771175b7 100644
--- a/drivers/media/usb/dvb-usb/az6027.c
+++ b/drivers/media/usb/dvb-usb/az6027.c
@@ -391,6 +391,7 @@ static struct rc_map_table rc_map_az6027_table[] = {
 /* remote control stuff (does not work with my box) */
 static int az6027_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 {
+	*state = REMOTE_NO_KEY_PRESSED;
 	return 0;
 }
 
-- 
GitLab


From c85e591b77cacf73295da17f137597c0a6e04327 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Fri, 18 Jun 2021 14:29:06 +0200
Subject: [PATCH 1217/4878] media: v4l2-ioctl: S_CTRL output the right value

[ Upstream commit c87ed93574e3cd8346c05bd934c617596c12541b ]

If the driver does not implement s_ctrl, but it does implement
s_ext_ctrls, we convert the call.

When that happens we have also to convert back the response from
s_ext_ctrls.

Fixes v4l2_compliance:
Control ioctls (Input 0):
		fail: v4l2-test-controls.cpp(411): returned control value out of range
		fail: v4l2-test-controls.cpp(507): invalid control 00980900
	test VIDIOC_G/S_CTRL: FAIL

Fixes: 35ea11ff8471 ("V4L/DVB (8430): videodev: move some functions from v4l2-dev.h to v4l2-common.h or v4l2-ioctl.h")
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/v4l2-core/v4l2-ioctl.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 42958ce22de19..4ffa14e44efe4 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -2263,6 +2263,7 @@ static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
 		test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
 	struct v4l2_ext_controls ctrls;
 	struct v4l2_ext_control ctrl;
+	int ret;
 
 	if (vfh && vfh->ctrl_handler)
 		return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
@@ -2278,9 +2279,11 @@ static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
 	ctrls.controls = &ctrl;
 	ctrl.id = p->id;
 	ctrl.value = p->value;
-	if (check_ext_ctrls(&ctrls, VIDIOC_S_CTRL))
-		return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
-	return -EINVAL;
+	if (!check_ext_ctrls(&ctrls, VIDIOC_S_CTRL))
+		return -EINVAL;
+	ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
+	p->value = ctrl.value;
+	return ret;
 }
 
 static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
-- 
GitLab


From e43b301cb1ba05616c35ece3622b66ef3badac8b Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Thu, 12 Aug 2021 19:00:43 +0200
Subject: [PATCH 1218/4878] media: TDA1997x: handle short reads of hdmi info
 frame.

[ Upstream commit 48d219f9cc667bc6fbc3e3af0b1bfd75db94fce4 ]

Static analysis reports this representative problem

tda1997x.c:1939: warning: 7th function call argument is an uninitialized
value

The 7th argument is buffer[0], which is set in the earlier call to
io_readn().  When io_readn() call to io_read() fails with the first
read, buffer[0] is not set and 0 is returned and stored in len.

The later call to hdmi_infoframe_unpack()'s size parameter is the
static size of buffer, always 40, so a short read is not caught
in hdmi_infoframe_unpacks()'s checking.  The variable len should be
used instead.

Zero initialize buffer to 0 so it is in a known start state.

Fixes: 9ac0038db9a7 ("media: i2c: Add TDA1997x HDMI receiver driver")
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/tda1997x.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/i2c/tda1997x.c b/drivers/media/i2c/tda1997x.c
index 17cc69c3227f8..8476330964fc7 100644
--- a/drivers/media/i2c/tda1997x.c
+++ b/drivers/media/i2c/tda1997x.c
@@ -1247,13 +1247,13 @@ tda1997x_parse_infoframe(struct tda1997x_state *state, u16 addr)
 {
 	struct v4l2_subdev *sd = &state->sd;
 	union hdmi_infoframe frame;
-	u8 buffer[40];
+	u8 buffer[40] = { 0 };
 	u8 reg;
 	int len, err;
 
 	/* read data */
 	len = io_readn(sd, addr, sizeof(buffer), buffer);
-	err = hdmi_infoframe_unpack(&frame, buffer, sizeof(buffer));
+	err = hdmi_infoframe_unpack(&frame, buffer, len);
 	if (err) {
 		v4l_err(state->client,
 			"failed parsing %d byte infoframe: 0x%04x/0x%02x\n",
@@ -1927,13 +1927,13 @@ static int tda1997x_log_infoframe(struct v4l2_subdev *sd, int addr)
 {
 	struct tda1997x_state *state = to_state(sd);
 	union hdmi_infoframe frame;
-	u8 buffer[40];
+	u8 buffer[40] = { 0 };
 	int len, err;
 
 	/* read data */
 	len = io_readn(sd, addr, sizeof(buffer), buffer);
 	v4l2_dbg(1, debug, sd, "infoframe: addr=%d len=%d\n", addr, len);
-	err = hdmi_infoframe_unpack(&frame, buffer, sizeof(buffer));
+	err = hdmi_infoframe_unpack(&frame, buffer, len);
 	if (err) {
 		v4l_err(state->client,
 			"failed parsing %d byte infoframe: 0x%04x/0x%02x\n",
-- 
GitLab


From 4280b30ea9b5054f4afa15ae0bb282fafd543e75 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Thu, 19 Aug 2021 22:21:25 +0200
Subject: [PATCH 1219/4878] media: mtk-vpu: Fix a resource leak in the error
 handling path of 'mtk_vpu_probe()'

[ Upstream commit 2143ad413c05c7be24c3a92760e367b7f6aaac92 ]

A successful 'clk_prepare()' call should be balanced by a corresponding
'clk_unprepare()' call in the error handling path of the probe, as already
done in the remove function.

Update the error handling path accordingly.

Fixes: 3003a180ef6b ("[media] VPU: mediatek: support Mediatek VPU")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Houlong Wei <houlong.wei@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/mtk-vpu/mtk_vpu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c
index 36cb9b6131f7e..c62eb212cca92 100644
--- a/drivers/media/platform/mtk-vpu/mtk_vpu.c
+++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c
@@ -820,7 +820,8 @@ static int mtk_vpu_probe(struct platform_device *pdev)
 	vpu->wdt.wq = create_singlethread_workqueue("vpu_wdt");
 	if (!vpu->wdt.wq) {
 		dev_err(dev, "initialize wdt workqueue failed\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto clk_unprepare;
 	}
 	INIT_WORK(&vpu->wdt.ws, vpu_wdt_reset_func);
 	mutex_init(&vpu->vpu_mutex);
@@ -914,6 +915,8 @@ disable_vpu_clk:
 	vpu_clock_disable(vpu);
 workqueue_destroy:
 	destroy_workqueue(vpu->wdt.wq);
+clk_unprepare:
+	clk_unprepare(vpu->clk);
 
 	return ret;
 }
-- 
GitLab


From 88315edafe39246624d8b3142e6da34a28c714a3 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Tue, 3 Aug 2021 21:46:08 +0200
Subject: [PATCH 1220/4878] media: radio-wl1273: Avoid card name truncation

[ Upstream commit dfadec236aa99f6086141949c9dc3ec50f3ff20d ]

The "card" string only holds 31 characters (and the terminating NUL).
In order to avoid truncation, use a shorter card description instead of
the current result, "Texas Instruments Wl1273 FM Rad".

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 87d1a50ce451 ("[media] V4L2: WL1273 FM Radio: TI WL1273 FM radio driver")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/radio/radio-wl1273.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c
index 1123768731676..484046471c03f 100644
--- a/drivers/media/radio/radio-wl1273.c
+++ b/drivers/media/radio/radio-wl1273.c
@@ -1279,7 +1279,7 @@ static int wl1273_fm_vidioc_querycap(struct file *file, void *priv,
 
 	strscpy(capability->driver, WL1273_FM_DRIVER_NAME,
 		sizeof(capability->driver));
-	strscpy(capability->card, "Texas Instruments Wl1273 FM Radio",
+	strscpy(capability->card, "TI Wl1273 FM Radio",
 		sizeof(capability->card));
 	strscpy(capability->bus_info, radio->bus_type,
 		sizeof(capability->bus_info));
-- 
GitLab


From 86626be4b629c3248ef8f6bab8253e9c69246b61 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Tue, 3 Aug 2021 21:46:09 +0200
Subject: [PATCH 1221/4878] media: si470x: Avoid card name truncation

[ Upstream commit 2908249f3878a591f7918368fdf0b7b0a6c3158c ]

The "card" string only holds 31 characters (and the terminating NUL).
In order to avoid truncation, use a shorter card description instead of
the current result, "Silicon Labs Si470x FM Radio Re".

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 78656acdcf48 ("V4L/DVB (7038): USB radio driver for Silicon Labs Si470x FM Radio Receivers")
Fixes: cc35bbddfe10 ("V4L/DVB (12416): radio-si470x: add i2c driver for si470x")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/radio/si470x/radio-si470x-i2c.c | 2 +-
 drivers/media/radio/si470x/radio-si470x-usb.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
index f491420d7b538..a972c0705ac79 100644
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c
+++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -11,7 +11,7 @@
 
 /* driver definitions */
 #define DRIVER_AUTHOR "Joonyoung Shim <jy0922.shim@samsung.com>";
-#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
+#define DRIVER_CARD "Silicon Labs Si470x FM Radio"
 #define DRIVER_DESC "I2C radio driver for Si470x FM Radio Receivers"
 #define DRIVER_VERSION "1.0.2"
 
diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c
index fedff68d8c496..3f8634a465730 100644
--- a/drivers/media/radio/si470x/radio-si470x-usb.c
+++ b/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -16,7 +16,7 @@
 
 /* driver definitions */
 #define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>"
-#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
+#define DRIVER_CARD "Silicon Labs Si470x FM Radio"
 #define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers"
 #define DRIVER_VERSION "1.0.10"
 
-- 
GitLab


From 388cebfa7342cbf0ad5522c570d7630f241ebeac Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Tue, 3 Aug 2021 21:46:10 +0200
Subject: [PATCH 1222/4878] media: tm6000: Avoid card name truncation

[ Upstream commit 42bb98e420d454fef3614b70ea11cc59068395f6 ]

The "card" string only holds 31 characters (and the terminating NUL).
In order to avoid truncation, use a shorter card description instead of
the current result, "Trident TVMaster TM5600/6000/60".

Suggested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: e28f49b0b2a8 ("V4L/DVB: tm6000: fix some info messages")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/tm6000/tm6000-video.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/usb/tm6000/tm6000-video.c b/drivers/media/usb/tm6000/tm6000-video.c
index 2df736c029d6e..01071e6cd7574 100644
--- a/drivers/media/usb/tm6000/tm6000-video.c
+++ b/drivers/media/usb/tm6000/tm6000-video.c
@@ -854,8 +854,7 @@ static int vidioc_querycap(struct file *file, void  *priv,
 	struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
 
 	strscpy(cap->driver, "tm6000", sizeof(cap->driver));
-	strscpy(cap->card, "Trident TVMaster TM5600/6000/6010",
-		sizeof(cap->card));
+	strscpy(cap->card, "Trident TM5600/6000/6010", sizeof(cap->card));
 	usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
 	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
 			    V4L2_CAP_DEVICE_CAPS;
-- 
GitLab


From c34bfe4204cdd234195f6695fccf3b2bfb87ecbd Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 4 Aug 2021 10:50:10 +0200
Subject: [PATCH 1223/4878] media: cx23885: Fix snd_card_free call on null card
 pointer

[ Upstream commit 7266dda2f1dfe151b12ef0c14eb4d4e622fb211c ]

Currently a call to snd_card_new that fails will set card with a NULL
pointer, this causes a null pointer dereference on the error cleanup
path when card it passed to snd_card_free. Fix this by adding a new
error exit path that does not call snd_card_free and exiting via this
new path.

Addresses-Coverity: ("Explicit null dereference")

Fixes: 9e44d63246a9 ("[media] cx23885: Add ALSA support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/cx23885/cx23885-alsa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx23885/cx23885-alsa.c b/drivers/media/pci/cx23885/cx23885-alsa.c
index 13689c5dd47ff..9154031c087d4 100644
--- a/drivers/media/pci/cx23885/cx23885-alsa.c
+++ b/drivers/media/pci/cx23885/cx23885-alsa.c
@@ -550,7 +550,7 @@ struct cx23885_audio_dev *cx23885_audio_register(struct cx23885_dev *dev)
 			   SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
 			THIS_MODULE, sizeof(struct cx23885_audio_dev), &card);
 	if (err < 0)
-		goto error;
+		goto error_msg;
 
 	chip = (struct cx23885_audio_dev *) card->private_data;
 	chip->dev = dev;
@@ -576,6 +576,7 @@ struct cx23885_audio_dev *cx23885_audio_register(struct cx23885_dev *dev)
 
 error:
 	snd_card_free(card);
+error_msg:
 	pr_err("%s(): Failed to register analog audio adapter\n",
 	       __func__);
 
-- 
GitLab


From 848f1f00c637da8cb5d5b4fb702fade5c03696df Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punitagrawal@gmail.com>
Date: Tue, 14 Sep 2021 23:38:37 +0900
Subject: [PATCH 1224/4878] kprobes: Do not use local variable when creating
 debugfs file

[ Upstream commit 8f7262cd66699a4b02eb7549b35c81b2116aad95 ]

debugfs_create_file() takes a pointer argument that can be used during
file operation callbacks (accessible via i_private in the inode
structure). An obvious requirement is for the pointer to refer to
valid memory when used.

When creating the debugfs file to dynamically enable / disable
kprobes, a pointer to local variable is passed to
debugfs_create_file(); which will go out of scope when the init
function returns. The reason this hasn't triggered random memory
corruption is because the pointer is not accessed during the debugfs
file callbacks.

Since the enabled state is managed by the kprobes_all_disabled global
variable, the local variable is not needed. Fix the incorrect (and
unnecessary) usage of local variable during debugfs_file_create() by
passing NULL instead.

Link: https://lkml.kernel.org/r/163163031686.489837.4476867635937014973.stgit@devnote2

Fixes: bf8f6e5b3e51 ("Kprobes: The ON/OFF knob thru debugfs")
Signed-off-by: Punit Agrawal <punitagrawal@gmail.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/kprobes.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index f590e9ff37062..66a6ba81edb1e 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2943,13 +2943,12 @@ static const struct file_operations fops_kp = {
 static int __init debugfs_kprobe_init(void)
 {
 	struct dentry *dir;
-	unsigned int value = 1;
 
 	dir = debugfs_create_dir("kprobes", NULL);
 
 	debugfs_create_file("list", 0400, dir, NULL, &kprobes_fops);
 
-	debugfs_create_file("enabled", 0600, dir, &value, &fops_kp);
+	debugfs_create_file("enabled", 0600, dir, NULL, &fops_kp);
 
 	debugfs_create_file("blacklist", 0400, dir, NULL,
 			    &kprobe_blacklist_fops);
-- 
GitLab


From 66f7de13d1566017c02cfaa51d1e44690990ce03 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 20 Sep 2021 12:05:35 +0200
Subject: [PATCH 1225/4878] crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency

[ Upstream commit 38aa192a05f22f9778f9420e630f0322525ef12e ]

The ecc.c file started out as part of the ECDH algorithm but got
moved out into a standalone module later. It does not build without
CRYPTO_DEFAULT_RNG, so now that other modules are using it as well we
can run into this link error:

aarch64-linux-ld: ecc.c:(.text+0xfc8): undefined reference to `crypto_default_rng'
aarch64-linux-ld: ecc.c:(.text+0xff4): undefined reference to `crypto_put_default_rng'

Move the 'select CRYPTO_DEFAULT_RNG' statement into the correct symbol.

Fixes: 0d7a78643f69 ("crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm")
Fixes: 4e6602916bc6 ("crypto: ecdsa - Add support for ECDSA signature verification")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 crypto/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 774adc9846fa8..1157f82dc9cf4 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -238,12 +238,12 @@ config CRYPTO_DH
 
 config CRYPTO_ECC
 	tristate
+	select CRYPTO_RNG_DEFAULT
 
 config CRYPTO_ECDH
 	tristate "ECDH algorithm"
 	select CRYPTO_ECC
 	select CRYPTO_KPP
-	select CRYPTO_RNG_DEFAULT
 	help
 	  Generic implementation of the ECDH algorithm
 
-- 
GitLab


From f03e0624e927579376fb0a7f260d5de4dfd4ecfc Mon Sep 17 00:00:00 2001
From: Anel Orazgaliyeva <anelkz@amazon.de>
Date: Mon, 6 Sep 2021 18:34:40 +0000
Subject: [PATCH 1226/4878] cpuidle: Fix kobject memory leaks in error paths

[ Upstream commit e5f5a66c9aa9c331da5527c2e3fd9394e7091e01 ]

Commit c343bf1ba5ef ("cpuidle: Fix three reference count leaks")
fixes the cleanup of kobjects; however, it removes kfree() calls
altogether, leading to memory leaks.

Fix those and also defer the initialization of dev->kobj_dev until
after the error check, so that we do not end up with a dangling
pointer.

Fixes: c343bf1ba5ef ("cpuidle: Fix three reference count leaks")
Signed-off-by: Anel Orazgaliyeva <anelkz@amazon.de>
Suggested-by: Aman Priyadarshi <apeureka@amazon.de>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cpuidle/sysfs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 53ec9585ccd44..469e18547d06c 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -488,6 +488,7 @@ static int cpuidle_add_state_sysfs(struct cpuidle_device *device)
 					   &kdev->kobj, "state%d", i);
 		if (ret) {
 			kobject_put(&kobj->kobj);
+			kfree(kobj);
 			goto error_state;
 		}
 		cpuidle_add_s2idle_attr_group(kobj);
@@ -619,6 +620,7 @@ static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev)
 				   &kdev->kobj, "driver");
 	if (ret) {
 		kobject_put(&kdrv->kobj);
+		kfree(kdrv);
 		return ret;
 	}
 
@@ -705,7 +707,6 @@ int cpuidle_add_sysfs(struct cpuidle_device *dev)
 	if (!kdev)
 		return -ENOMEM;
 	kdev->dev = dev;
-	dev->kobj_dev = kdev;
 
 	init_completion(&kdev->kobj_unregister);
 
@@ -713,9 +714,11 @@ int cpuidle_add_sysfs(struct cpuidle_device *dev)
 				   "cpuidle");
 	if (error) {
 		kobject_put(&kdev->kobj);
+		kfree(kdev);
 		return error;
 	}
 
+	dev->kobj_dev = kdev;
 	kobject_uevent(&kdev->kobj, KOBJ_ADD);
 
 	return 0;
-- 
GitLab


From 52e3545eefb68414ec317aa0ac1356443984922b Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Fri, 17 Sep 2021 18:07:02 +0200
Subject: [PATCH 1227/4878] media: em28xx: Don't use ops->suspend if it is NULL

[ Upstream commit 51fa3b70d27342baf1ea8aaab3e96e5f4f26d5b2 ]

The call to ops->suspend for the dev->dev_next case can currently
trigger a call on a null function pointer if ops->suspend is null.
Skip over the use of function ops->suspend if it is null.

Addresses-Coverity: ("Dereference after null check")

Fixes: be7fd3c3a8c5 ("media: em28xx: Hauppauge DualHD second tuner functionality")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/em28xx/em28xx-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
index 3daa64bb1e1d9..af9216278024f 100644
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -1152,8 +1152,9 @@ int em28xx_suspend_extension(struct em28xx *dev)
 	dev_info(&dev->intf->dev, "Suspending extensions\n");
 	mutex_lock(&em28xx_devlist_mutex);
 	list_for_each_entry(ops, &em28xx_extension_devlist, next) {
-		if (ops->suspend)
-			ops->suspend(dev);
+		if (!ops->suspend)
+			continue;
+		ops->suspend(dev);
 		if (dev->dev_next)
 			ops->suspend(dev->dev_next);
 	}
-- 
GitLab


From d01e847d84bf698206febd59a169b60eb2b3e077 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20L=C3=BCssing?= <ll@simonwunderlich.de>
Date: Tue, 5 Oct 2021 16:55:53 +0300
Subject: [PATCH 1228/4878] ath9k: Fix potential interrupt storm on queue reset
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 4925642d541278575ad1948c5924d71ffd57ef14 ]

In tests with two Lima boards from 8devices (QCA4531 based) on OpenWrt
19.07 we could force a silent restart of a device with no serial
output when we were sending a high amount of UDP traffic (iperf3 at 80
MBit/s in both directions from external hosts, saturating the wifi and
causing a load of about 4.5 to 6) and were then triggering an
ath9k_queue_reset().

Further debugging showed that the restart was caused by the ath79
watchdog. With disabled watchdog we could observe that the device was
constantly going into ath_isr() interrupt handler and was returning
early after the ATH_OP_HW_RESET flag test, without clearing any
interrupts. Even though ath9k_queue_reset() calls
ath9k_hw_kill_interrupts().

With JTAG we could observe the following race condition:

1) ath9k_queue_reset()
   ...
   -> ath9k_hw_kill_interrupts()
   -> set_bit(ATH_OP_HW_RESET, &common->op_flags);
   ...
   <- returns

      2) ath9k_tasklet()
         ...
         -> ath9k_hw_resume_interrupts()
         ...
         <- returns

                 3) loops around:
                    ...
                    handle_int()
                    -> ath_isr()
                       ...
                       -> if (test_bit(ATH_OP_HW_RESET,
                                       &common->op_flags))
                            return IRQ_HANDLED;

                    x) ath_reset_internal():
                       => never reached <=

And in ath_isr() we would typically see the following interrupts /
interrupt causes:

* status: 0x00111030 or 0x00110030
* async_cause: 2 (AR_INTR_MAC_IPQ)
* sync_cause: 0

So the ath9k_tasklet() reenables the ath9k interrupts
through ath9k_hw_resume_interrupts() which ath9k_queue_reset() had just
disabled. And ath_isr() then keeps firing because it returns IRQ_HANDLED
without actually clearing the interrupt.

To fix this IRQ storm also clear/disable the interrupts again when we
are in reset state.

Cc: Sven Eckelmann <sven@narfation.org>
Cc: Simon Wunderlich <sw@simonwunderlich.de>
Cc: Linus Lüssing <linus.luessing@c0d3.blue>
Fixes: 872b5d814f99 ("ath9k: do not access hardware on IRQs during reset")
Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210914192515.9273-3-linus.luessing@c0d3.blue
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 5739c1dbf1661..af367696fd92f 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -533,8 +533,10 @@ irqreturn_t ath_isr(int irq, void *dev)
 	ath9k_debug_sync_cause(sc, sync_cause);
 	status &= ah->imask;	/* discard unasked-for bits */
 
-	if (test_bit(ATH_OP_HW_RESET, &common->op_flags))
+	if (test_bit(ATH_OP_HW_RESET, &common->op_flags)) {
+		ath9k_hw_kill_interrupts(sc->sc_ah);
 		return IRQ_HANDLED;
+	}
 
 	/*
 	 * If there are no status bits set, then this interrupt was not
-- 
GitLab


From 1b2d422a261b8dcf6168e2ac1fd5bd872f8d6aa9 Mon Sep 17 00:00:00 2001
From: Vincent Donnefort <vincent.donnefort@arm.com>
Date: Wed, 8 Sep 2021 15:05:22 +0100
Subject: [PATCH 1229/4878] PM: EM: Fix inefficient states detection

[ Upstream commit aa1a43262ad5df010768f69530fa179ff81651d3 ]

Currently, a debug message is printed if an inefficient state is detected
in the Energy Model. Unfortunately, it won't detect if the first state is
inefficient or if two successive states are. Fix this behavior.

Fixes: 27871f7a8a34 (PM: Introduce an Energy Model management framework)
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Reviewed-by: Quentin Perret <qperret@google.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/power/energy_model.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
index be381eb6116a1..119b929dcff0f 100644
--- a/kernel/power/energy_model.c
+++ b/kernel/power/energy_model.c
@@ -94,8 +94,7 @@ static void em_debug_remove_pd(struct device *dev) {}
 static int em_create_perf_table(struct device *dev, struct em_perf_domain *pd,
 				int nr_states, struct em_data_callback *cb)
 {
-	unsigned long opp_eff, prev_opp_eff = ULONG_MAX;
-	unsigned long power, freq, prev_freq = 0;
+	unsigned long power, freq, prev_freq = 0, prev_cost = ULONG_MAX;
 	struct em_perf_state *table;
 	int i, ret;
 	u64 fmax;
@@ -140,27 +139,21 @@ static int em_create_perf_table(struct device *dev, struct em_perf_domain *pd,
 
 		table[i].power = power;
 		table[i].frequency = prev_freq = freq;
-
-		/*
-		 * The hertz/watts efficiency ratio should decrease as the
-		 * frequency grows on sane platforms. But this isn't always
-		 * true in practice so warn the user if a higher OPP is more
-		 * power efficient than a lower one.
-		 */
-		opp_eff = freq / power;
-		if (opp_eff >= prev_opp_eff)
-			dev_dbg(dev, "EM: hertz/watts ratio non-monotonically decreasing: em_perf_state %d >= em_perf_state%d\n",
-					i, i - 1);
-		prev_opp_eff = opp_eff;
 	}
 
 	/* Compute the cost of each performance state. */
 	fmax = (u64) table[nr_states - 1].frequency;
-	for (i = 0; i < nr_states; i++) {
+	for (i = nr_states - 1; i >= 0; i--) {
 		unsigned long power_res = em_scale_power(table[i].power);
 
 		table[i].cost = div64_u64(fmax * power_res,
 					  table[i].frequency);
+		if (table[i].cost >= prev_cost) {
+			dev_dbg(dev, "EM: OPP:%lu is inefficient\n",
+				table[i].frequency);
+		} else {
+			prev_cost = table[i].cost;
+		}
 	}
 
 	pd->table = table;
-- 
GitLab


From 68803253822c7f5b94bb23363a2a7621fa8e2ae9 Mon Sep 17 00:00:00 2001
From: Yazen Ghannam <yazen.ghannam@amd.com>
Date: Tue, 5 Oct 2021 15:44:19 +0000
Subject: [PATCH 1230/4878] EDAC/amd64: Handle three rank interleaving mode

[ Upstream commit 9f4873fb6af7966de8fcbd95c36b61351c1c4b1f ]

AMD Rome systems and later support interleaving between three identical
ranks within a channel.

Check for this mode by counting the number of enabled chip selects and
comparing their masks. If there are exactly three enabled chip selects
and their masks are identical, then three rank interleaving is enabled.

The size of a rank is determined from its mask value. However, three
rank interleaving doesn't follow the method of swapping an interleave
bit with the most significant bit. Rather, the interleave bit is flipped
and the most significant bit remains the same. There is only a single
interleave bit in this case.

Account for this when determining the chip select size by keeping the
most significant bit at its original value and ignoring any zero bits.
This will return a full bitmask in [MSB:1].

Fixes: e53a3b267fb0 ("EDAC/amd64: Find Chip Select memory size using Address Mask")
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211005154419.2060504-1-yazen.ghannam@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/edac/amd64_edac.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index b36d5879b91e0..f5635dfa9acf6 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -786,12 +786,14 @@ static void debug_dump_dramcfg_low(struct amd64_pvt *pvt, u32 dclr, int chan)
 #define CS_ODD_PRIMARY		BIT(1)
 #define CS_EVEN_SECONDARY	BIT(2)
 #define CS_ODD_SECONDARY	BIT(3)
+#define CS_3R_INTERLEAVE	BIT(4)
 
 #define CS_EVEN			(CS_EVEN_PRIMARY | CS_EVEN_SECONDARY)
 #define CS_ODD			(CS_ODD_PRIMARY | CS_ODD_SECONDARY)
 
 static int f17_get_cs_mode(int dimm, u8 ctrl, struct amd64_pvt *pvt)
 {
+	u8 base, count = 0;
 	int cs_mode = 0;
 
 	if (csrow_enabled(2 * dimm, ctrl, pvt))
@@ -804,6 +806,20 @@ static int f17_get_cs_mode(int dimm, u8 ctrl, struct amd64_pvt *pvt)
 	if (csrow_sec_enabled(2 * dimm + 1, ctrl, pvt))
 		cs_mode |= CS_ODD_SECONDARY;
 
+	/*
+	 * 3 Rank inteleaving support.
+	 * There should be only three bases enabled and their two masks should
+	 * be equal.
+	 */
+	for_each_chip_select(base, ctrl, pvt)
+		count += csrow_enabled(base, ctrl, pvt);
+
+	if (count == 3 &&
+	    pvt->csels[ctrl].csmasks[0] == pvt->csels[ctrl].csmasks[1]) {
+		edac_dbg(1, "3R interleaving in use.\n");
+		cs_mode |= CS_3R_INTERLEAVE;
+	}
+
 	return cs_mode;
 }
 
@@ -1612,10 +1628,14 @@ static int f17_addr_mask_to_cs_size(struct amd64_pvt *pvt, u8 umc,
 	 *
 	 * The MSB is the number of bits in the full mask because BIT[0] is
 	 * always 0.
+	 *
+	 * In the special 3 Rank interleaving case, a single bit is flipped
+	 * without swapping with the most significant bit. This can be handled
+	 * by keeping the MSB where it is and ignoring the single zero bit.
 	 */
 	msb = fls(addr_mask_orig) - 1;
 	weight = hweight_long(addr_mask_orig);
-	num_zero_bits = msb - weight;
+	num_zero_bits = msb - weight - !!(cs_mode & CS_3R_INTERLEAVE);
 
 	/* Take the number of zero bits off from the top of the mask. */
 	addr_mask_deinterleaved = GENMASK_ULL(msb - num_zero_bits, 1);
-- 
GitLab


From af756be29c825f267e7a8870f9179d9c35c09eb8 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 28 Sep 2021 10:40:21 +0200
Subject: [PATCH 1231/4878] rcu: Always inline
 rcu_dynticks_task*_{enter,exit}()

[ Upstream commit 7663ad9a5dbcc27f3090e6bfd192c7e59222709f ]

RCU managed to grow a few noinstr violations:

  vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter()+0x0: call to rcu_dynticks_task_trace_enter() leaves .noinstr.text section
  vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit()+0xe: call to rcu_dynticks_task_trace_exit() leaves .noinstr.text section

Fix them by adding __always_inline to the relevant trivial functions.

Also replace the noinstr with __always_inline for the existing
rcu_dynticks_task_*() functions since noinstr would force noinline
them, even when empty, which seems silly.

Fixes: 7d0c9c50c5a1 ("rcu-tasks: Avoid IPIing userspace/idle tasks if kernel is so built")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/rcu/tree_plugin.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index c5091aeaa37bb..6ed153f226b39 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2573,7 +2573,7 @@ static void rcu_bind_gp_kthread(void)
 }
 
 /* Record the current task on dyntick-idle entry. */
-static void noinstr rcu_dynticks_task_enter(void)
+static __always_inline void rcu_dynticks_task_enter(void)
 {
 #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL)
 	WRITE_ONCE(current->rcu_tasks_idle_cpu, smp_processor_id());
@@ -2581,7 +2581,7 @@ static void noinstr rcu_dynticks_task_enter(void)
 }
 
 /* Record no current task on dyntick-idle exit. */
-static void noinstr rcu_dynticks_task_exit(void)
+static __always_inline void rcu_dynticks_task_exit(void)
 {
 #if defined(CONFIG_TASKS_RCU) && defined(CONFIG_NO_HZ_FULL)
 	WRITE_ONCE(current->rcu_tasks_idle_cpu, -1);
@@ -2589,7 +2589,7 @@ static void noinstr rcu_dynticks_task_exit(void)
 }
 
 /* Turn on heavyweight RCU tasks trace readers on idle/user entry. */
-static void rcu_dynticks_task_trace_enter(void)
+static __always_inline void rcu_dynticks_task_trace_enter(void)
 {
 #ifdef CONFIG_TASKS_TRACE_RCU
 	if (IS_ENABLED(CONFIG_TASKS_TRACE_RCU_READ_MB))
@@ -2598,7 +2598,7 @@ static void rcu_dynticks_task_trace_enter(void)
 }
 
 /* Turn off heavyweight RCU tasks trace readers on idle/user exit. */
-static void rcu_dynticks_task_trace_exit(void)
+static __always_inline void rcu_dynticks_task_trace_exit(void)
 {
 #ifdef CONFIG_TASKS_TRACE_RCU
 	if (IS_ENABLED(CONFIG_TASKS_TRACE_RCU_READ_MB))
-- 
GitLab


From 740a794e01c5f75b22044a06bfd16183baf2c352 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Sat, 25 Sep 2021 22:40:26 +0200
Subject: [PATCH 1232/4878] netfilter: nft_dynset: relax superfluous check on
 set updates

[ Upstream commit 7b1394892de8d95748d05e3ee41e85edb4abbfa1 ]

Relax this condition to make add and update commands idempotent for sets
with no timeout. The eval function already checks if the set element
timeout is available and updates it if the update command is used.

Fixes: 22fe54d5fefc ("netfilter: nf_tables: add support for dynamic set updates")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_dynset.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c
index 5c84a968dae29..58904bee1a0df 100644
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -141,17 +141,8 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
 		return -EBUSY;
 
 	priv->op = ntohl(nla_get_be32(tb[NFTA_DYNSET_OP]));
-	switch (priv->op) {
-	case NFT_DYNSET_OP_ADD:
-	case NFT_DYNSET_OP_DELETE:
-		break;
-	case NFT_DYNSET_OP_UPDATE:
-		if (!(set->flags & NFT_SET_TIMEOUT))
-			return -EOPNOTSUPP;
-		break;
-	default:
+	if (priv->op > NFT_DYNSET_OP_DELETE)
 		return -EOPNOTSUPP;
-	}
 
 	timeout = 0;
 	if (tb[NFTA_DYNSET_TIMEOUT] != NULL) {
-- 
GitLab


From 1fe4b244198201d4a6c23b1b5c23cab11a11c665 Mon Sep 17 00:00:00 2001
From: Evgeny Novikov <novikov@ispras.ru>
Date: Sun, 22 Aug 2021 11:48:03 +0200
Subject: [PATCH 1233/4878] media: dvb-frontends: mn88443x: Handle errors of
 clk_prepare_enable()

[ Upstream commit 69a10678e2fba3d182e78ea041f2d1b1a6058764 ]

mn88443x_cmn_power_on() did not handle possible errors of
clk_prepare_enable() and always finished successfully so that its caller
mn88443x_probe() did not care about failed preparing/enabling of clocks
as well.

Add missed error handling in both mn88443x_cmn_power_on() and
mn88443x_probe(). This required to change the return value of the former
from "void" to "int".

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: 0f408ce8941f ("media: dvb-frontends: add Socionext MN88443x ISDB-S/T demodulator driver")
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Co-developed-by: Kirill Shilimanov <kirill.shilimanov@huawei.com>
Signed-off-by: Kirill Shilimanov <kirill.shilimanov@huawei.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/dvb-frontends/mn88443x.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/media/dvb-frontends/mn88443x.c b/drivers/media/dvb-frontends/mn88443x.c
index e4528784f8477..fff212c0bf3b5 100644
--- a/drivers/media/dvb-frontends/mn88443x.c
+++ b/drivers/media/dvb-frontends/mn88443x.c
@@ -204,11 +204,18 @@ struct mn88443x_priv {
 	struct regmap *regmap_t;
 };
 
-static void mn88443x_cmn_power_on(struct mn88443x_priv *chip)
+static int mn88443x_cmn_power_on(struct mn88443x_priv *chip)
 {
+	struct device *dev = &chip->client_s->dev;
 	struct regmap *r_t = chip->regmap_t;
+	int ret;
 
-	clk_prepare_enable(chip->mclk);
+	ret = clk_prepare_enable(chip->mclk);
+	if (ret) {
+		dev_err(dev, "Failed to prepare and enable mclk: %d\n",
+			ret);
+		return ret;
+	}
 
 	gpiod_set_value_cansleep(chip->reset_gpio, 1);
 	usleep_range(100, 1000);
@@ -222,6 +229,8 @@ static void mn88443x_cmn_power_on(struct mn88443x_priv *chip)
 	} else {
 		regmap_write(r_t, HIZSET3, 0x8f);
 	}
+
+	return 0;
 }
 
 static void mn88443x_cmn_power_off(struct mn88443x_priv *chip)
@@ -738,7 +747,10 @@ static int mn88443x_probe(struct i2c_client *client,
 	chip->fe.demodulator_priv = chip;
 	i2c_set_clientdata(client, chip);
 
-	mn88443x_cmn_power_on(chip);
+	ret = mn88443x_cmn_power_on(chip);
+	if (ret)
+		goto err_i2c_t;
+
 	mn88443x_s_sleep(chip);
 	mn88443x_t_sleep(chip);
 
-- 
GitLab


From d99fdd13a75a01e441a69534188ab48cb1d20fdc Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Date: Tue, 28 Sep 2021 12:44:29 +0100
Subject: [PATCH 1234/4878] crypto: qat - detect PFVF collision after ACK

[ Upstream commit 9b768e8a3909ac1ab39ed44a3933716da7761a6f ]

Detect a PFVF collision between the local and the remote function by
checking if the message on the PFVF CSR has been overwritten.
This is done after the remote function confirms that the message has
been received, by clearing the interrupt bit, or the maximum number of
attempts (ADF_IOV_MSG_ACK_MAX_RETRY) to check the CSR has been exceeded.

Fixes: ed8ccaef52fa ("crypto: qat - Add support for SRIOV")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Co-developed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index e829c6aaf16fd..a5bd77d0f0487 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -150,6 +150,13 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 		val = ADF_CSR_RD(pmisc_bar_addr, pf2vf_offset);
 	} while ((val & int_bit) && (count++ < ADF_IOV_MSG_ACK_MAX_RETRY));
 
+	if (val != msg) {
+		dev_dbg(&GET_DEV(accel_dev),
+			"Collision - PFVF CSR overwritten by remote function\n");
+		ret = -EIO;
+		goto out;
+	}
+
 	if (val & int_bit) {
 		dev_dbg(&GET_DEV(accel_dev), "ACK not received from remote\n");
 		val &= ~int_bit;
-- 
GitLab


From 8d98683fa6df1edd86183250958a55899f4a689c Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Date: Tue, 28 Sep 2021 12:44:30 +0100
Subject: [PATCH 1235/4878] crypto: qat - disregard spurious PFVF interrupts

[ Upstream commit 18fcba469ba5359c1de7e3fb16f7b9e8cd1b8e02 ]

Upon receiving a PFVF message, check if the interrupt bit is set in the
message. If it is not, that means that the interrupt was probably
triggered by a collision. In this case, disregard the message and
re-enable the interrupts.

Fixes: ed8ccaef52fa ("crypto: qat - Add support for SRIOV")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 6 ++++++
 drivers/crypto/qat/qat_common/adf_vf_isr.c    | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index a5bd77d0f0487..d7ca222f0df18 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -205,6 +205,11 @@ void adf_vf2pf_req_hndl(struct adf_accel_vf_info *vf_info)
 
 	/* Read message from the VF */
 	msg = ADF_CSR_RD(pmisc_addr, hw_data->get_pf2vf_offset(vf_nr));
+	if (!(msg & ADF_VF2PF_INT)) {
+		dev_info(&GET_DEV(accel_dev),
+			 "Spurious VF2PF interrupt, msg %X. Ignored\n", msg);
+		goto out;
+	}
 
 	/* To ACK, clear the VF2PFINT bit */
 	msg &= ~ADF_VF2PF_INT;
@@ -288,6 +293,7 @@ void adf_vf2pf_req_hndl(struct adf_accel_vf_info *vf_info)
 	if (resp && adf_iov_putmsg(accel_dev, resp, vf_nr))
 		dev_err(&GET_DEV(accel_dev), "Failed to send response to VF\n");
 
+out:
 	/* re-enable interrupt on PF from this VF */
 	adf_enable_vf2pf_interrupts(accel_dev, (1 << vf_nr));
 	return;
diff --git a/drivers/crypto/qat/qat_common/adf_vf_isr.c b/drivers/crypto/qat/qat_common/adf_vf_isr.c
index 024401ec9d1ae..fa1b3a94155cc 100644
--- a/drivers/crypto/qat/qat_common/adf_vf_isr.c
+++ b/drivers/crypto/qat/qat_common/adf_vf_isr.c
@@ -79,6 +79,11 @@ static void adf_pf2vf_bh_handler(void *data)
 
 	/* Read the message from PF */
 	msg = ADF_CSR_RD(pmisc_bar_addr, hw_data->get_pf2vf_offset(0));
+	if (!(msg & ADF_PF2VF_INT)) {
+		dev_info(&GET_DEV(accel_dev),
+			 "Spurious PF2VF interrupt, msg %X. Ignored\n", msg);
+		goto out;
+	}
 
 	if (!(msg & ADF_PF2VF_MSGORIGIN_SYSTEM))
 		/* Ignore legacy non-system (non-kernel) PF2VF messages */
@@ -127,6 +132,7 @@ static void adf_pf2vf_bh_handler(void *data)
 	msg &= ~ADF_PF2VF_INT;
 	ADF_CSR_WR(pmisc_bar_addr, hw_data->get_pf2vf_offset(0), msg);
 
+out:
 	/* Re-enable PF2VF interrupts */
 	adf_enable_pf2vf_interrupts(accel_dev);
 	return;
-- 
GitLab


From 6a1610014181b13126c6e9a1a3b964675251d7d1 Mon Sep 17 00:00:00 2001
From: Markus Schneider-Pargmann <msp@baylibre.com>
Date: Thu, 30 Sep 2021 21:12:42 +0200
Subject: [PATCH 1236/4878] hwrng: mtk - Force runtime pm ops for sleep ops

[ Upstream commit b6f5f0c8f72d348b2d07b20d7b680ef13a7ffe98 ]

Currently mtk_rng_runtime_suspend/resume is called for both runtime pm
and system sleep operations.

This is wrong as these should only be runtime ops as the name already
suggests. Currently freezing the system will lead to a call to
mtk_rng_runtime_suspend even if the device currently isn't active. This
leads to a clock warning because it is disabled/unprepared although it
isn't enabled/prepared currently.

This patch fixes this by only setting the runtime pm ops and forces to
call the runtime pm ops from the system sleep ops as well if active but
not otherwise.

Fixes: 81d2b34508c6 ("hwrng: mtk - add runtime PM support")
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/hw_random/mtk-rng.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index 8ad7b515a51b8..6c00ea0085553 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -166,8 +166,13 @@ static int mtk_rng_runtime_resume(struct device *dev)
 	return mtk_rng_init(&priv->rng);
 }
 
-static UNIVERSAL_DEV_PM_OPS(mtk_rng_pm_ops, mtk_rng_runtime_suspend,
-			    mtk_rng_runtime_resume, NULL);
+static const struct dev_pm_ops mtk_rng_pm_ops = {
+	SET_RUNTIME_PM_OPS(mtk_rng_runtime_suspend,
+			   mtk_rng_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
 #define MTK_RNG_PM_OPS (&mtk_rng_pm_ops)
 #else	/* CONFIG_PM */
 #define MTK_RNG_PM_OPS NULL
-- 
GitLab


From 508faf8721aea6b67a9e7d77b772f8649080c4f4 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 6 Oct 2021 10:35:42 +0300
Subject: [PATCH 1237/4878] b43legacy: fix a lower bounds test
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c1c8380b0320ab757e60ed90efc8b1992a943256 ]

The problem is that "channel" is an unsigned int, when it's less 5 the
value of "channel - 5" is not a negative number as one would expect but
is very high positive value instead.

This means that "start" becomes a very high positive value.  The result
of that is that we never enter the "for (i = start; i <= end; i++) {"
loop.  Instead of storing the result from b43legacy_radio_aci_detect()
it just uses zero.

Fixes: 75388acd0cd8 ("[B43LEGACY]: add mac80211-based driver for legacy BCM43xx devices")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211006073542.GD8404@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/b43legacy/radio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/b43legacy/radio.c b/drivers/net/wireless/broadcom/b43legacy/radio.c
index 06891b4f837b9..fdf78c10a05c2 100644
--- a/drivers/net/wireless/broadcom/b43legacy/radio.c
+++ b/drivers/net/wireless/broadcom/b43legacy/radio.c
@@ -283,7 +283,7 @@ u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev)
 			    & 0x7FFF);
 	b43legacy_set_all_gains(dev, 3, 8, 1);
 
-	start = (channel - 5 > 0) ? channel - 5 : 1;
+	start = (channel > 5) ? channel - 5 : 1;
 	end = (channel + 5 < 14) ? channel + 5 : 13;
 
 	for (i = start; i <= end; i++) {
-- 
GitLab


From 9e4f708df65e7da7a1a5677ee2f8205bef89e36b Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 6 Oct 2021 10:36:22 +0300
Subject: [PATCH 1238/4878] b43: fix a lower bounds test
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 9b793db5fca44d01f72d3564a168171acf7c4076 ]

The problem is that "channel" is an unsigned int, when it's less 5 the
value of "channel - 5" is not a negative number as one would expect but
is very high positive value instead.

This means that "start" becomes a very high positive value.  The result
of that is that we never enter the "for (i = start; i <= end; i++) {"
loop.  Instead of storing the result from b43legacy_radio_aci_detect()
it just uses zero.

Fixes: ef1a628d83fc ("b43: Implement dynamic PHY API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Büsch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211006073621.GE8404@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/b43/phy_g.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/b43/phy_g.c b/drivers/net/wireless/broadcom/b43/phy_g.c
index d5a1a5c582366..ac72ca39e409b 100644
--- a/drivers/net/wireless/broadcom/b43/phy_g.c
+++ b/drivers/net/wireless/broadcom/b43/phy_g.c
@@ -2297,7 +2297,7 @@ static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
 	b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
 	b43_set_all_gains(dev, 3, 8, 1);
 
-	start = (channel - 5 > 0) ? channel - 5 : 1;
+	start = (channel > 5) ? channel - 5 : 1;
 	end = (channel + 5 < 14) ? channel + 5 : 13;
 
 	for (i = start; i <= end; i++) {
-- 
GitLab


From a9fbeb5bbc4699f13b7d10bcfce4b842eb9a9e37 Mon Sep 17 00:00:00 2001
From: John Fraker <jfraker@google.com>
Date: Mon, 11 Oct 2021 08:36:47 -0700
Subject: [PATCH 1239/4878] gve: Recover from queue stall due to missed IRQ

[ Upstream commit 87a7f321bb6a45e54b7d6c90d032ee5636a6ad97 ]

Don't always reset the driver on a TX timeout. Attempt to
recover by kicking the queue in case an IRQ was missed.

Fixes: 9e5f7d26a4c08 ("gve: Add workqueue and reset support")
Signed-off-by: John Fraker <jfraker@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/google/gve/gve.h        |  4 +-
 drivers/net/ethernet/google/gve/gve_adminq.h |  1 +
 drivers/net/ethernet/google/gve/gve_main.c   | 48 +++++++++++++++++++-
 3 files changed, 51 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h
index cfb174624d4ee..5c9a4d4362c7b 100644
--- a/drivers/net/ethernet/google/gve/gve.h
+++ b/drivers/net/ethernet/google/gve/gve.h
@@ -28,7 +28,7 @@
 #define GVE_MIN_MSIX 3
 
 /* Numbers of gve tx/rx stats in stats report. */
-#define GVE_TX_STATS_REPORT_NUM	5
+#define GVE_TX_STATS_REPORT_NUM	6
 #define GVE_RX_STATS_REPORT_NUM	2
 
 /* Interval to schedule a stats report update, 20000ms. */
@@ -147,7 +147,9 @@ struct gve_tx_ring {
 	u32 q_num ____cacheline_aligned; /* queue idx */
 	u32 stop_queue; /* count of queue stops */
 	u32 wake_queue; /* count of queue wakes */
+	u32 queue_timeout; /* count of queue timeouts */
 	u32 ntfy_id; /* notification block index */
+	u32 last_kick_msec; /* Last time the queue was kicked */
 	dma_addr_t bus; /* dma address of the descr ring */
 	dma_addr_t q_resources_bus; /* dma address of the queue resources */
 	struct u64_stats_sync statss; /* sync stats for 32bit archs */
diff --git a/drivers/net/ethernet/google/gve/gve_adminq.h b/drivers/net/ethernet/google/gve/gve_adminq.h
index 015796a20118b..8dbc2c03fbbdd 100644
--- a/drivers/net/ethernet/google/gve/gve_adminq.h
+++ b/drivers/net/ethernet/google/gve/gve_adminq.h
@@ -212,6 +212,7 @@ enum gve_stat_names {
 	TX_LAST_COMPLETION_PROCESSED	= 5,
 	RX_NEXT_EXPECTED_SEQUENCE	= 6,
 	RX_BUFFERS_POSTED		= 7,
+	TX_TIMEOUT_CNT			= 8,
 	// stats from NIC
 	RX_QUEUE_DROP_CNT		= 65,
 	RX_NO_BUFFERS_POSTED		= 66,
diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index fd52218f48846..3e96b2a11c5bf 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -23,6 +23,9 @@
 #define GVE_VERSION		"1.0.0"
 #define GVE_VERSION_PREFIX	"GVE-"
 
+// Minimum amount of time between queue kicks in msec (10 seconds)
+#define MIN_TX_TIMEOUT_GAP (1000 * 10)
+
 const char gve_version_str[] = GVE_VERSION;
 static const char gve_version_prefix[] = GVE_VERSION_PREFIX;
 
@@ -943,9 +946,47 @@ static void gve_turnup(struct gve_priv *priv)
 
 static void gve_tx_timeout(struct net_device *dev, unsigned int txqueue)
 {
-	struct gve_priv *priv = netdev_priv(dev);
+	struct gve_notify_block *block;
+	struct gve_tx_ring *tx = NULL;
+	struct gve_priv *priv;
+	u32 last_nic_done;
+	u32 current_time;
+	u32 ntfy_idx;
+
+	netdev_info(dev, "Timeout on tx queue, %d", txqueue);
+	priv = netdev_priv(dev);
+	if (txqueue > priv->tx_cfg.num_queues)
+		goto reset;
+
+	ntfy_idx = gve_tx_idx_to_ntfy(priv, txqueue);
+	if (ntfy_idx > priv->num_ntfy_blks)
+		goto reset;
+
+	block = &priv->ntfy_blocks[ntfy_idx];
+	tx = block->tx;
 
+	current_time = jiffies_to_msecs(jiffies);
+	if (tx->last_kick_msec + MIN_TX_TIMEOUT_GAP > current_time)
+		goto reset;
+
+	/* Check to see if there are missed completions, which will allow us to
+	 * kick the queue.
+	 */
+	last_nic_done = gve_tx_load_event_counter(priv, tx);
+	if (last_nic_done - tx->done) {
+		netdev_info(dev, "Kicking queue %d", txqueue);
+		iowrite32be(GVE_IRQ_MASK, gve_irq_doorbell(priv, block));
+		napi_schedule(&block->napi);
+		tx->last_kick_msec = current_time;
+		goto out;
+	} // Else reset.
+
+reset:
 	gve_schedule_reset(priv);
+
+out:
+	if (tx)
+		tx->queue_timeout++;
 	priv->tx_timeo_cnt++;
 }
 
@@ -1028,6 +1069,11 @@ void gve_handle_report_stats(struct gve_priv *priv)
 				.value = cpu_to_be64(priv->tx[idx].done),
 				.queue_id = cpu_to_be32(idx),
 			};
+			stats[stats_idx++] = (struct stats) {
+				.stat_name = cpu_to_be32(TX_TIMEOUT_CNT),
+				.value = cpu_to_be64(priv->tx[idx].queue_timeout),
+				.queue_id = cpu_to_be32(idx),
+			};
 		}
 	}
 	/* rx stats */
-- 
GitLab


From 2fd26ec36ef0d6b78509a2953ad1e03c93ea7caf Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 21 Sep 2021 14:00:25 +0300
Subject: [PATCH 1240/4878] mmc: sdhci-omap: Fix NULL pointer exception if
 regulator is not configured

[ Upstream commit 8e0e7bd38b1ec7f9e5d18725ad41828be4e09859 ]

If sdhci-omap is configured for an unused device instance and the device
is not set as disabled, we can get a NULL pointer dereference:

Unable to handle kernel NULL pointer dereference at virtual address
00000045
...
(regulator_set_voltage) from [<c07d7008>] (mmc_regulator_set_ocr+0x44/0xd0)
(mmc_regulator_set_ocr) from [<c07e2d80>] (sdhci_set_ios+0xa4/0x490)
(sdhci_set_ios) from [<c07ea690>] (sdhci_omap_set_ios+0x124/0x160)
(sdhci_omap_set_ios) from [<c07c8e94>] (mmc_power_up.part.0+0x3c/0x154)
(mmc_power_up.part.0) from [<c07c9d20>] (mmc_start_host+0x88/0x9c)
(mmc_start_host) from [<c07cad34>] (mmc_add_host+0x58/0x7c)
(mmc_add_host) from [<c07e2574>] (__sdhci_add_host+0xf0/0x22c)
(__sdhci_add_host) from [<c07eaf68>] (sdhci_omap_probe+0x318/0x72c)
(sdhci_omap_probe) from [<c06a39d8>] (platform_probe+0x58/0xb8)

AFAIK we are not seeing this with the devices configured in the mainline
kernel but this can cause issues for folks bringing up their boards.

Fixes: 7d326930d352 ("mmc: sdhci-omap: Add OMAP SDHCI driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210921110029.21944-2-tony@atomide.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/sdhci-omap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 7893fd3599b61..8a669f57f14b3 100644
--- a/drivers/mmc/host/sdhci-omap.c
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -682,7 +682,8 @@ static void sdhci_omap_set_power(struct sdhci_host *host, unsigned char mode,
 {
 	struct mmc_host *mmc = host->mmc;
 
-	mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+	if (!IS_ERR(mmc->supply.vmmc))
+		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
 }
 
 static int sdhci_omap_enable_dma(struct sdhci_host *host)
-- 
GitLab


From 72de92d33f83737688c5979915c5570fa597b979 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 21 Sep 2021 14:00:26 +0300
Subject: [PATCH 1241/4878] mmc: sdhci-omap: Fix context restore

[ Upstream commit d806e334d0390502cd2a820ad33d65d7f9bba618 ]

We need to restore context in a specified order with HCTL set in two
phases. This is similar to what omap_hsmmc_context_restore() is doing.
Otherwise SDIO can stop working on resume.

And for PM runtime and SDIO cards, we need to also save SYSCTL, IE and
ISE.

This should not be a problem currently, and these patches can be applied
whenever suitable.

Fixes: ee0f309263a6 ("mmc: sdhci-omap: Add Support for Suspend/Resume")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210921110029.21944-3-tony@atomide.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/sdhci-omap.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 8a669f57f14b3..53c362bb28661 100644
--- a/drivers/mmc/host/sdhci-omap.c
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -62,6 +62,8 @@
 #define SDHCI_OMAP_IE		0x234
 #define INT_CC_EN		BIT(0)
 
+#define SDHCI_OMAP_ISE		0x238
+
 #define SDHCI_OMAP_AC12		0x23c
 #define AC12_V1V8_SIGEN		BIT(19)
 #define AC12_SCLK_SEL		BIT(23)
@@ -113,6 +115,8 @@ struct sdhci_omap_host {
 	u32			hctl;
 	u32			sysctl;
 	u32			capa;
+	u32			ie;
+	u32			ise;
 };
 
 static void sdhci_omap_start_clock(struct sdhci_omap_host *omap_host);
@@ -1246,14 +1250,23 @@ static void sdhci_omap_context_save(struct sdhci_omap_host *omap_host)
 {
 	omap_host->con = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);
 	omap_host->hctl = sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL);
+	omap_host->sysctl = sdhci_omap_readl(omap_host, SDHCI_OMAP_SYSCTL);
 	omap_host->capa = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);
+	omap_host->ie = sdhci_omap_readl(omap_host, SDHCI_OMAP_IE);
+	omap_host->ise = sdhci_omap_readl(omap_host, SDHCI_OMAP_ISE);
 }
 
+/* Order matters here, HCTL must be restored in two phases */
 static void sdhci_omap_context_restore(struct sdhci_omap_host *omap_host)
 {
-	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, omap_host->con);
 	sdhci_omap_writel(omap_host, SDHCI_OMAP_HCTL, omap_host->hctl);
 	sdhci_omap_writel(omap_host, SDHCI_OMAP_CAPA, omap_host->capa);
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_HCTL, omap_host->hctl);
+
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_SYSCTL, omap_host->sysctl);
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, omap_host->con);
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_IE, omap_host->ie);
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_ISE, omap_host->ise);
 }
 
 static int __maybe_unused sdhci_omap_suspend(struct device *dev)
-- 
GitLab


From 4756d7fbaf8c0c8465e7a3ca0243be1fb68ca6b6 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 27 Sep 2021 11:44:47 +0200
Subject: [PATCH 1242/4878] memstick: avoid out-of-range warning

[ Upstream commit 4853396f03c3019eccf5cd113e464231e9ddf0b3 ]

clang-14 complains about a sanity check that always passes when the
page size is 64KB or larger:

drivers/memstick/core/ms_block.c:1739:21: error: result of comparison of constant 65536 with expression of type 'unsigned short' is always false [-Werror,-Wtautological-constant-out-of-range-compare]
        if (msb->page_size > PAGE_SIZE) {
            ~~~~~~~~~~~~~~ ^ ~~~~~~~~~

This is fine, it will still work on all architectures, so just shut
up that warning with a cast.

Fixes: 0ab30494bc4f ("memstick: add support for legacy memorysticks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210927094520.696665-1-arnd@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memstick/core/ms_block.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index 8004dd64d09a8..bc1f484f50f1d 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -1727,7 +1727,7 @@ static int msb_init_card(struct memstick_dev *card)
 	msb->pages_in_block = boot_block->attr.block_size * 2;
 	msb->block_size = msb->page_size * msb->pages_in_block;
 
-	if (msb->page_size > PAGE_SIZE) {
+	if ((size_t)msb->page_size > PAGE_SIZE) {
 		/* this isn't supported by linux at all, anyway*/
 		dbg("device page %d size isn't supported", msb->page_size);
 		return -EINVAL;
-- 
GitLab


From 41fe79cf115626c45d3e65f7ce890966acf2c4ec Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 11 Oct 2021 15:39:12 +0300
Subject: [PATCH 1243/4878] memstick: jmb38x_ms: use appropriate free function
 in jmb38x_ms_alloc_host()

[ Upstream commit beae4a6258e64af609ad5995cc6b6056eb0d898e ]

The "msh" pointer is device managed, meaning that memstick_alloc_host()
calls device_initialize() on it.  That means that it can't be free
using kfree() but must instead be freed with memstick_free_host().
Otherwise it leads to a tiny memory leak of device resources.

Fixes: 60fdd931d577 ("memstick: add support for JMicron jmb38x MemoryStick host controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211011123912.GD15188@kili
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memstick/host/jmb38x_ms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c
index e83c3ada9389e..9e8cccbd2817e 100644
--- a/drivers/memstick/host/jmb38x_ms.c
+++ b/drivers/memstick/host/jmb38x_ms.c
@@ -882,7 +882,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt)
 
 	iounmap(host->addr);
 err_out_free:
-	kfree(msh);
+	memstick_free_host(msh);
 	return NULL;
 }
 
-- 
GitLab


From e29352f162db6c06dc259d05ad538d350c82cd0b Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Mon, 11 Oct 2021 14:12:35 +0200
Subject: [PATCH 1244/4878] net, neigh: Fix NTF_EXT_LEARNED in combination with
 NTF_USE

[ Upstream commit e4400bbf5b15750e1b59bf4722d18d99be60c69f ]

The NTF_EXT_LEARNED neigh flag is usually propagated back to user space
upon dump of the neighbor table. However, when used in combination with
NTF_USE flag this is not the case despite exempting the entry from the
garbage collector. This results in inconsistent state since entries are
typically marked in neigh->flags with NTF_EXT_LEARNED, but here they are
not. Fix it by propagating the creation flag to ___neigh_create().

Before fix:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
  [...]

After fix:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a extern_learn REACHABLE
  [...]

Fixes: 9ce33e46531d ("neighbour: support for NTF_EXT_LEARNED flag")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/neighbour.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index c452ebf209394..01e243a578e9c 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -380,7 +380,7 @@ EXPORT_SYMBOL(neigh_ifdown);
 
 static struct neighbour *neigh_alloc(struct neigh_table *tbl,
 				     struct net_device *dev,
-				     bool exempt_from_gc)
+				     u8 flags, bool exempt_from_gc)
 {
 	struct neighbour *n = NULL;
 	unsigned long now = jiffies;
@@ -413,6 +413,7 @@ do_alloc:
 	n->updated	  = n->used = now;
 	n->nud_state	  = NUD_NONE;
 	n->output	  = neigh_blackhole;
+	n->flags	  = flags;
 	seqlock_init(&n->hh.hh_lock);
 	n->parms	  = neigh_parms_clone(&tbl->parms);
 	timer_setup(&n->timer, neigh_timer_handler, 0);
@@ -576,19 +577,18 @@ struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
 }
 EXPORT_SYMBOL(neigh_lookup_nodev);
 
-static struct neighbour *___neigh_create(struct neigh_table *tbl,
-					 const void *pkey,
-					 struct net_device *dev,
-					 bool exempt_from_gc, bool want_ref)
+static struct neighbour *
+___neigh_create(struct neigh_table *tbl, const void *pkey,
+		struct net_device *dev, u8 flags,
+		bool exempt_from_gc, bool want_ref)
 {
-	struct neighbour *n1, *rc, *n = neigh_alloc(tbl, dev, exempt_from_gc);
-	u32 hash_val;
-	unsigned int key_len = tbl->key_len;
-	int error;
+	u32 hash_val, key_len = tbl->key_len;
+	struct neighbour *n1, *rc, *n;
 	struct neigh_hash_table *nht;
+	int error;
 
+	n = neigh_alloc(tbl, dev, flags, exempt_from_gc);
 	trace_neigh_create(tbl, dev, pkey, n, exempt_from_gc);
-
 	if (!n) {
 		rc = ERR_PTR(-ENOBUFS);
 		goto out;
@@ -675,7 +675,7 @@ out_neigh_release:
 struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey,
 				 struct net_device *dev, bool want_ref)
 {
-	return ___neigh_create(tbl, pkey, dev, false, want_ref);
+	return ___neigh_create(tbl, pkey, dev, 0, false, want_ref);
 }
 EXPORT_SYMBOL(__neigh_create);
 
@@ -1950,7 +1950,9 @@ static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 		exempt_from_gc = ndm->ndm_state & NUD_PERMANENT ||
 				 ndm->ndm_flags & NTF_EXT_LEARNED;
-		neigh = ___neigh_create(tbl, dst, dev, exempt_from_gc, true);
+		neigh = ___neigh_create(tbl, dst, dev,
+					ndm->ndm_flags & NTF_EXT_LEARNED,
+					exempt_from_gc, true);
 		if (IS_ERR(neigh)) {
 			err = PTR_ERR(neigh);
 			goto out;
-- 
GitLab


From fbc80c83f1185bbbb92a899335894064e1ca69ab Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Tue, 12 Oct 2021 19:27:58 +0800
Subject: [PATCH 1245/4878] hwmon: Fix possible memleak in
 __hwmon_device_register()

[ Upstream commit ada61aa0b1184a8fda1a89a340c7d6cc4e59aee5 ]

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff888102740438 (size 8):
  comm "27", pid 859, jiffies 4295031351 (age 143.992s)
  hex dump (first 8 bytes):
    68 77 6d 6f 6e 30 00 00                          hwmon0..
  backtrace:
    [<00000000544b5996>] __kmalloc_track_caller+0x1a6/0x300
    [<00000000df0d62b9>] kvasprintf+0xad/0x140
    [<00000000d3d2a3da>] kvasprintf_const+0x62/0x190
    [<000000005f8f0f29>] kobject_set_name_vargs+0x56/0x140
    [<00000000b739e4b9>] dev_set_name+0xb0/0xe0
    [<0000000095b69c25>] __hwmon_device_register+0xf19/0x1e50 [hwmon]
    [<00000000a7e65b52>] hwmon_device_register_with_info+0xcb/0x110 [hwmon]
    [<000000006f181e86>] devm_hwmon_device_register_with_info+0x85/0x100 [hwmon]
    [<0000000081bdc567>] tmp421_probe+0x2d2/0x465 [tmp421]
    [<00000000502cc3f8>] i2c_device_probe+0x4e1/0xbb0
    [<00000000f90bda3b>] really_probe+0x285/0xc30
    [<000000007eac7b77>] __driver_probe_device+0x35f/0x4f0
    [<000000004953d43d>] driver_probe_device+0x4f/0x140
    [<000000002ada2d41>] __device_attach_driver+0x24c/0x330
    [<00000000b3977977>] bus_for_each_drv+0x15d/0x1e0
    [<000000005bf2a8e3>] __device_attach+0x267/0x410

When device_register() returns an error, the name allocated in
dev_set_name() will be leaked, the put_device() should be used
instead of calling hwmon_dev_release() to give up the device
reference, then the name will be freed in kobject_cleanup().

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: bab2243ce189 ("hwmon: Introduce hwmon_device_register_with_groups")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211012112758.2681084-1-yangyingliang@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/hwmon.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index 6c684058bfdfc..e5a83f7492677 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -760,8 +760,10 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata,
 	dev_set_drvdata(hdev, drvdata);
 	dev_set_name(hdev, HWMON_ID_FORMAT, id);
 	err = device_register(hdev);
-	if (err)
-		goto free_hwmon;
+	if (err) {
+		put_device(hdev);
+		goto ida_remove;
+	}
 
 	INIT_LIST_HEAD(&hwdev->tzdata);
 
-- 
GitLab


From 786976b25ae0aaa58597a364e81e3ba3328f1211 Mon Sep 17 00:00:00 2001
From: Zev Weiss <zev@bewilderbeest.net>
Date: Tue, 28 Sep 2021 02:22:38 -0700
Subject: [PATCH 1246/4878] hwmon: (pmbus/lm25066) Let compiler determine outer
 dimension of lm25066_coeff

[ Upstream commit b7931a7b0e0df4d2a25fedd895ad32c746b77bc1 ]

Maintaining this manually is error prone (there are currently only
five chips supported, not six); gcc can do it for us automatically.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Fixes: 666c14906b49 ("hwmon: (pmbus/lm25066) Drop support for LM25063")
Link: https://lore.kernel.org/r/20210928092242.30036-5-zev@bewilderbeest.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pmbus/lm25066.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index d14f923b3740d..17199a1104c72 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -51,7 +51,7 @@ struct __coeff {
 #define PSC_CURRENT_IN_L	(PSC_NUM_CLASSES)
 #define PSC_POWER_L		(PSC_NUM_CLASSES + 1)
 
-static struct __coeff lm25066_coeff[6][PSC_NUM_CLASSES + 2] = {
+static struct __coeff lm25066_coeff[][PSC_NUM_CLASSES + 2] = {
 	[lm25056] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 16296,
-- 
GitLab


From e1ee11473a88d65d3abc26df976312d199139dd2 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <seckelmann@datto.com>
Date: Tue, 11 Jun 2019 19:21:31 +0200
Subject: [PATCH 1247/4878] ath10k: fix max antenna gain unit

[ Upstream commit 0a491167fe0cf9f26062462de2a8688b96125d48 ]

Most of the txpower for the ath10k firmware is stored as twicepower (0.5 dB
steps). This isn't the case for max_antenna_gain - which is still expected
by the firmware as dB.

The firmware is converting it from dB to the internal (twicepower)
representation when it calculates the limits of a channel. This can be seen
in tpc_stats when configuring "12" as max_antenna_gain. Instead of the
expected 12 (6 dB), the tpc_stats shows 24 (12 dB).

Tested on QCA9888 and IPQ4019 with firmware 10.4-3.5.3-00057.

Fixes: 02256930d9b8 ("ath10k: use proper tx power unit")
Signed-off-by: Sven Eckelmann <seckelmann@datto.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20190611172131.6064-1-sven@narfation.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 6 +++---
 drivers/net/wireless/ath/ath10k/wmi.h | 3 +++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 90dc48f66fbfe..c42977918e049 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1041,7 +1041,7 @@ static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
 	arg.channel.min_power = 0;
 	arg.channel.max_power = channel->max_power * 2;
 	arg.channel.max_reg_power = channel->max_reg_power * 2;
-	arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
+	arg.channel.max_antenna_gain = channel->max_antenna_gain;
 
 	reinit_completion(&ar->vdev_setup_done);
 	reinit_completion(&ar->vdev_delete_done);
@@ -1487,7 +1487,7 @@ static int ath10k_vdev_start_restart(struct ath10k_vif *arvif,
 	arg.channel.min_power = 0;
 	arg.channel.max_power = chandef->chan->max_power * 2;
 	arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
-	arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
+	arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain;
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
 		arg.ssid = arvif->u.ap.ssid;
@@ -3258,7 +3258,7 @@ static int ath10k_update_channel_list(struct ath10k *ar)
 			ch->min_power = 0;
 			ch->max_power = channel->max_power * 2;
 			ch->max_reg_power = channel->max_reg_power * 2;
-			ch->max_antenna_gain = channel->max_antenna_gain * 2;
+			ch->max_antenna_gain = channel->max_antenna_gain;
 			ch->reg_class_id = 0; /* FIXME */
 
 			/* FIXME: why use only legacy modes, why not any
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 66ecf09068c19..e244b7038e606 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2066,7 +2066,9 @@ struct wmi_channel {
 	union {
 		__le32 reginfo1;
 		struct {
+			/* note: power unit is 1 dBm */
 			u8 antenna_max;
+			/* note: power unit is 0.5 dBm */
 			u8 max_tx_power;
 		} __packed;
 	} __packed;
@@ -2086,6 +2088,7 @@ struct wmi_channel_arg {
 	u32 min_power;
 	u32 max_power;
 	u32 max_reg_power;
+	/* note: power unit is 1 dBm */
 	u32 max_antenna_gain;
 	u32 reg_class_id;
 	enum wmi_phy_mode mode;
-- 
GitLab


From c85c6fadbef0a3eab41540ea628fa8fe8928c820 Mon Sep 17 00:00:00 2001
From: Zhang Qiao <zhangqiao22@huawei.com>
Date: Wed, 15 Sep 2021 14:40:30 +0800
Subject: [PATCH 1248/4878] kernel/sched: Fix sched_fork() access an invalid
 sched_task_group

[ Upstream commit 4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a ]

There is a small race between copy_process() and sched_fork()
where child->sched_task_group point to an already freed pointer.

	parent doing fork()      | someone moving the parent
				 | to another cgroup
  -------------------------------+-------------------------------
  copy_process()
      + dup_task_struct()<1>
				  parent move to another cgroup,
				  and free the old cgroup. <2>
      + sched_fork()
	+ __set_task_cpu()<3>
	+ task_fork_fair()
	  + sched_slice()<4>

In the worst case, this bug can lead to "use-after-free" and
cause panic as shown above:

  (1) parent copy its sched_task_group to child at <1>;

  (2) someone move the parent to another cgroup and free the old
      cgroup at <2>;

  (3) the sched_task_group and cfs_rq that belong to the old cgroup
      will be accessed at <3> and <4>, which cause a panic:

  [] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
  [] PGD 8000001fa0a86067 P4D 8000001fa0a86067 PUD 2029955067 PMD 0
  [] Oops: 0000 [#1] SMP PTI
  [] CPU: 7 PID: 648398 Comm: ebizzy Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0.x86_64+ #1
  [] RIP: 0010:sched_slice+0x84/0xc0

  [] Call Trace:
  []  task_fork_fair+0x81/0x120
  []  sched_fork+0x132/0x240
  []  copy_process.part.5+0x675/0x20e0
  []  ? __handle_mm_fault+0x63f/0x690
  []  _do_fork+0xcd/0x3b0
  []  do_syscall_64+0x5d/0x1d0
  []  entry_SYSCALL_64_after_hwframe+0x65/0xca
  [] RIP: 0033:0x7f04418cd7e1

Between cgroup_can_fork() and cgroup_post_fork(), the cgroup
membership and thus sched_task_group can't change. So update child's
sched_task_group at sched_post_fork() and move task_fork() and
__set_task_cpu() (where accees the sched_task_group) from sched_fork()
to sched_post_fork().

Fixes: 8323f26ce342 ("sched: Fix race in task_group")
Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lkml.kernel.org/r/20210915064030.2231-1-zhangqiao22@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sched/task.h |  3 ++-
 kernel/fork.c              |  2 +-
 kernel/sched/core.c        | 43 +++++++++++++++++++-------------------
 3 files changed, 25 insertions(+), 23 deletions(-)

diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 85fb2f34c59b7..24cacb1ca654d 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -55,7 +55,8 @@ extern asmlinkage void schedule_tail(struct task_struct *prev);
 extern void init_idle(struct task_struct *idle, int cpu);
 
 extern int sched_fork(unsigned long clone_flags, struct task_struct *p);
-extern void sched_post_fork(struct task_struct *p);
+extern void sched_post_fork(struct task_struct *p,
+			    struct kernel_clone_args *kargs);
 extern void sched_dead(struct task_struct *p);
 
 void __noreturn do_task_dead(void);
diff --git a/kernel/fork.c b/kernel/fork.c
index 3f96400a0ac61..773b44be81f9d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2310,7 +2310,7 @@ static __latent_entropy struct task_struct *copy_process(
 	write_unlock_irq(&tasklist_lock);
 
 	proc_fork_connector(p);
-	sched_post_fork(p);
+	sched_post_fork(p, args);
 	cgroup_post_fork(p, args);
 	perf_event_fork(p);
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e4551d1736fa3..bc8ff11e60242 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3231,8 +3231,6 @@ static inline void init_schedstats(void) {}
  */
 int sched_fork(unsigned long clone_flags, struct task_struct *p)
 {
-	unsigned long flags;
-
 	__sched_fork(clone_flags, p);
 	/*
 	 * We mark the process as NEW here. This guarantees that
@@ -3278,24 +3276,6 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
 
 	init_entity_runnable_average(&p->se);
 
-	/*
-	 * The child is not yet in the pid-hash so no cgroup attach races,
-	 * and the cgroup is pinned to this child due to cgroup_fork()
-	 * is ran before sched_fork().
-	 *
-	 * Silence PROVE_RCU.
-	 */
-	raw_spin_lock_irqsave(&p->pi_lock, flags);
-	rseq_migrate(p);
-	/*
-	 * We're setting the CPU for the first time, we don't migrate,
-	 * so use __set_task_cpu().
-	 */
-	__set_task_cpu(p, smp_processor_id());
-	if (p->sched_class->task_fork)
-		p->sched_class->task_fork(p);
-	raw_spin_unlock_irqrestore(&p->pi_lock, flags);
-
 #ifdef CONFIG_SCHED_INFO
 	if (likely(sched_info_on()))
 		memset(&p->sched_info, 0, sizeof(p->sched_info));
@@ -3311,8 +3291,29 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
 	return 0;
 }
 
-void sched_post_fork(struct task_struct *p)
+void sched_post_fork(struct task_struct *p, struct kernel_clone_args *kargs)
 {
+	unsigned long flags;
+#ifdef CONFIG_CGROUP_SCHED
+	struct task_group *tg;
+#endif
+
+	raw_spin_lock_irqsave(&p->pi_lock, flags);
+#ifdef CONFIG_CGROUP_SCHED
+	tg = container_of(kargs->cset->subsys[cpu_cgrp_id],
+			  struct task_group, css);
+	p->sched_task_group = autogroup_task_group(p, tg);
+#endif
+	rseq_migrate(p);
+	/*
+	 * We're setting the CPU for the first time, we don't migrate,
+	 * so use __set_task_cpu().
+	 */
+	__set_task_cpu(p, smp_processor_id());
+	if (p->sched_class->task_fork)
+		p->sched_class->task_fork(p);
+	raw_spin_unlock_irqrestore(&p->pi_lock, flags);
+
 	uclamp_post_fork(p);
 }
 
-- 
GitLab


From a342cb4772f44915b1e6688b101a41c01f9e71aa Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 14 Oct 2021 06:41:26 -0700
Subject: [PATCH 1249/4878] tcp: switch orphan_count to bare per-cpu counters

[ Upstream commit 19757cebf0c5016a1f36f7fe9810a9f0b33c0832 ]

Use of percpu_counter structure to track count of orphaned
sockets is causing problems on modern hosts with 256 cpus
or more.

Stefan Bach reported a serious spinlock contention in real workloads,
that I was able to reproduce with a netfilter rule dropping
incoming FIN packets.

    53.56%  server  [kernel.kallsyms]      [k] queued_spin_lock_slowpath
            |
            ---queued_spin_lock_slowpath
               |
                --53.51%--_raw_spin_lock_irqsave
                          |
                           --53.51%--__percpu_counter_sum
                                     tcp_check_oom
                                     |
                                     |--39.03%--__tcp_close
                                     |          tcp_close
                                     |          inet_release
                                     |          inet6_release
                                     |          sock_close
                                     |          __fput
                                     |          ____fput
                                     |          task_work_run
                                     |          exit_to_usermode_loop
                                     |          do_syscall_64
                                     |          entry_SYSCALL_64_after_hwframe
                                     |          __GI___libc_close
                                     |
                                      --14.48%--tcp_out_of_resources
                                                tcp_write_timeout
                                                tcp_retransmit_timer
                                                tcp_write_timer_handler
                                                tcp_write_timer
                                                call_timer_fn
                                                expire_timers
                                                __run_timers
                                                run_timer_softirq
                                                __softirqentry_text_start

As explained in commit cf86a086a180 ("net/dst: use a smaller percpu_counter
batch for dst entries accounting"), default batch size is too big
for the default value of tcp_max_orphans (262144).

But even if we reduce batch sizes, there would still be cases
where the estimated count of orphans is beyond the limit,
and where tcp_too_many_orphans() has to call the expensive
percpu_counter_sum_positive().

One solution is to use plain per-cpu counters, and have
a timer to periodically refresh this cache.

Updating this cache every 100ms seems about right, tcp pressure
state is not radically changing over shorter periods.

percpu_counter was nice 15 years ago while hosts had less
than 16 cpus, not anymore by current standards.

v2: Fix the build issue for CONFIG_CRYPTO_DEV_CHELSIO_TLS=m,
    reported by kernel test robot <lkp@intel.com>
    Remove unused socket argument from tcp_too_many_orphans()

Fixes: dd24c00191d5 ("net: Use a percpu_counter for orphan_count")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Stefan Bach <sfb@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../chelsio/inline_crypto/chtls/chtls_cm.c    |  2 +-
 .../chelsio/inline_crypto/chtls/chtls_cm.h    |  2 +-
 include/net/inet_connection_sock.h            |  2 +-
 include/net/sock.h                            |  2 +-
 include/net/tcp.h                             | 17 ++-------
 net/dccp/dccp.h                               |  2 +-
 net/dccp/proto.c                              | 14 ++-----
 net/ipv4/inet_connection_sock.c               |  4 +-
 net/ipv4/inet_hashtables.c                    |  2 +-
 net/ipv4/proc.c                               |  2 +-
 net/ipv4/tcp.c                                | 38 ++++++++++++++++---
 11 files changed, 49 insertions(+), 38 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
index a262c949ed76b..d6b6ebb3f1ec7 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
@@ -870,7 +870,7 @@ static void do_abort_syn_rcv(struct sock *child, struct sock *parent)
 		 * created only after 3 way handshake is done.
 		 */
 		sock_orphan(child);
-		percpu_counter_inc((child)->sk_prot->orphan_count);
+		INC_ORPHAN_COUNT(child);
 		chtls_release_resources(child);
 		chtls_conn_done(child);
 	} else {
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.h b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.h
index b1161bdeda4dc..f61ca657601ca 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.h
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.h
@@ -95,7 +95,7 @@ struct deferred_skb_cb {
 #define WSCALE_OK(tp) ((tp)->rx_opt.wscale_ok)
 #define TSTAMP_OK(tp) ((tp)->rx_opt.tstamp_ok)
 #define SACK_OK(tp) ((tp)->rx_opt.sack_ok)
-#define INC_ORPHAN_COUNT(sk) percpu_counter_inc((sk)->sk_prot->orphan_count)
+#define INC_ORPHAN_COUNT(sk) this_cpu_inc(*(sk)->sk_prot->orphan_count)
 
 /* TLS SKB */
 #define skb_ulp_tls_inline(skb)      (ULP_SKB_CB(skb)->ulp.tls.ofld)
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index aa92af3dd444d..0b1864a82d4ad 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -291,7 +291,7 @@ static inline void inet_csk_prepare_for_destroy_sock(struct sock *sk)
 {
 	/* The below has to be done to allow calling inet_csk_destroy_sock */
 	sock_set_flag(sk, SOCK_DEAD);
-	percpu_counter_inc(sk->sk_prot->orphan_count);
+	this_cpu_inc(*sk->sk_prot->orphan_count);
 }
 
 void inet_csk_destroy_sock(struct sock *sk);
diff --git a/include/net/sock.h b/include/net/sock.h
index cdca984f36305..6270d1d9436b0 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1214,7 +1214,7 @@ struct proto {
 	unsigned int		useroffset;	/* Usercopy region offset */
 	unsigned int		usersize;	/* Usercopy region size */
 
-	struct percpu_counter	*orphan_count;
+	unsigned int __percpu	*orphan_count;
 
 	struct request_sock_ops	*rsk_prot;
 	struct timewait_sock_ops *twsk_prot;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index eff611da5780b..334b8d1b54429 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -48,7 +48,9 @@
 
 extern struct inet_hashinfo tcp_hashinfo;
 
-extern struct percpu_counter tcp_orphan_count;
+DECLARE_PER_CPU(unsigned int, tcp_orphan_count);
+int tcp_orphan_count_sum(void);
+
 void tcp_time_wait(struct sock *sk, int state, int timeo);
 
 #define MAX_TCP_HEADER	L1_CACHE_ALIGN(128 + MAX_HEADER)
@@ -290,19 +292,6 @@ static inline bool tcp_out_of_memory(struct sock *sk)
 
 void sk_forced_mem_schedule(struct sock *sk, int size);
 
-static inline bool tcp_too_many_orphans(struct sock *sk, int shift)
-{
-	struct percpu_counter *ocp = sk->sk_prot->orphan_count;
-	int orphans = percpu_counter_read_positive(ocp);
-
-	if (orphans << shift > sysctl_tcp_max_orphans) {
-		orphans = percpu_counter_sum_positive(ocp);
-		if (orphans << shift > sysctl_tcp_max_orphans)
-			return true;
-	}
-	return false;
-}
-
 bool tcp_check_oom(struct sock *sk, int shift);
 
 
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index c5c1d2b8045e8..5183e627468d8 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -48,7 +48,7 @@ extern bool dccp_debug;
 
 extern struct inet_hashinfo dccp_hashinfo;
 
-extern struct percpu_counter dccp_orphan_count;
+DECLARE_PER_CPU(unsigned int, dccp_orphan_count);
 
 void dccp_time_wait(struct sock *sk, int state, int timeo);
 
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 6d705d90c6149..548cf0135647d 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -42,8 +42,8 @@ DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly;
 
 EXPORT_SYMBOL_GPL(dccp_statistics);
 
-struct percpu_counter dccp_orphan_count;
-EXPORT_SYMBOL_GPL(dccp_orphan_count);
+DEFINE_PER_CPU(unsigned int, dccp_orphan_count);
+EXPORT_PER_CPU_SYMBOL_GPL(dccp_orphan_count);
 
 struct inet_hashinfo dccp_hashinfo;
 EXPORT_SYMBOL_GPL(dccp_hashinfo);
@@ -1055,7 +1055,7 @@ adjudge_to_death:
 	bh_lock_sock(sk);
 	WARN_ON(sock_owned_by_user(sk));
 
-	percpu_counter_inc(sk->sk_prot->orphan_count);
+	this_cpu_inc(dccp_orphan_count);
 
 	/* Have we already been destroyed by a softirq or backlog? */
 	if (state != DCCP_CLOSED && sk->sk_state == DCCP_CLOSED)
@@ -1115,13 +1115,10 @@ static int __init dccp_init(void)
 
 	BUILD_BUG_ON(sizeof(struct dccp_skb_cb) >
 		     sizeof_field(struct sk_buff, cb));
-	rc = percpu_counter_init(&dccp_orphan_count, 0, GFP_KERNEL);
-	if (rc)
-		goto out_fail;
 	inet_hashinfo_init(&dccp_hashinfo);
 	rc = inet_hashinfo2_init_mod(&dccp_hashinfo);
 	if (rc)
-		goto out_free_percpu;
+		goto out_fail;
 	rc = -ENOBUFS;
 	dccp_hashinfo.bind_bucket_cachep =
 		kmem_cache_create("dccp_bind_bucket",
@@ -1226,8 +1223,6 @@ out_free_bind_bucket_cachep:
 	kmem_cache_destroy(dccp_hashinfo.bind_bucket_cachep);
 out_free_hashinfo2:
 	inet_hashinfo2_free_mod(&dccp_hashinfo);
-out_free_percpu:
-	percpu_counter_destroy(&dccp_orphan_count);
 out_fail:
 	dccp_hashinfo.bhash = NULL;
 	dccp_hashinfo.ehash = NULL;
@@ -1250,7 +1245,6 @@ static void __exit dccp_fini(void)
 	dccp_ackvec_exit();
 	dccp_sysctl_exit();
 	inet_hashinfo2_free_mod(&dccp_hashinfo);
-	percpu_counter_destroy(&dccp_orphan_count);
 }
 
 module_init(dccp_init);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 1dfa561e8f981..addd595bb3fe6 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -892,7 +892,7 @@ void inet_csk_destroy_sock(struct sock *sk)
 
 	sk_refcnt_debug_release(sk);
 
-	percpu_counter_dec(sk->sk_prot->orphan_count);
+	this_cpu_dec(*sk->sk_prot->orphan_count);
 
 	sock_put(sk);
 }
@@ -951,7 +951,7 @@ static void inet_child_forget(struct sock *sk, struct request_sock *req,
 
 	sock_orphan(child);
 
-	percpu_counter_inc(sk->sk_prot->orphan_count);
+	this_cpu_inc(*sk->sk_prot->orphan_count);
 
 	if (sk->sk_protocol == IPPROTO_TCP && tcp_rsk(req)->tfo_listener) {
 		BUG_ON(rcu_access_pointer(tcp_sk(child)->fastopen_rsk) != req);
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index f3fd5c911ed09..e093847c334da 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -598,7 +598,7 @@ bool inet_ehash_nolisten(struct sock *sk, struct sock *osk, bool *found_dup_sk)
 	if (ok) {
 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
 	} else {
-		percpu_counter_inc(sk->sk_prot->orphan_count);
+		this_cpu_inc(*sk->sk_prot->orphan_count);
 		inet_sk_set_state(sk, TCP_CLOSE);
 		sock_set_flag(sk, SOCK_DEAD);
 		inet_csk_destroy_sock(sk);
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 8d5e1695b9aa8..80d13d8f982dc 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -53,7 +53,7 @@ static int sockstat_seq_show(struct seq_file *seq, void *v)
 	struct net *net = seq->private;
 	int orphans, sockets;
 
-	orphans = percpu_counter_sum_positive(&tcp_orphan_count);
+	orphans = tcp_orphan_count_sum();
 	sockets = proto_sockets_allocated_sum_positive(&tcp_prot);
 
 	socket_seq_show(seq);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 54230852e5f95..65eb0a523e3f5 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -280,8 +280,8 @@
 #include <asm/ioctls.h>
 #include <net/busy_poll.h>
 
-struct percpu_counter tcp_orphan_count;
-EXPORT_SYMBOL_GPL(tcp_orphan_count);
+DEFINE_PER_CPU(unsigned int, tcp_orphan_count);
+EXPORT_PER_CPU_SYMBOL_GPL(tcp_orphan_count);
 
 long sysctl_tcp_mem[3] __read_mostly;
 EXPORT_SYMBOL(sysctl_tcp_mem);
@@ -2394,11 +2394,36 @@ void tcp_shutdown(struct sock *sk, int how)
 }
 EXPORT_SYMBOL(tcp_shutdown);
 
+int tcp_orphan_count_sum(void)
+{
+	int i, total = 0;
+
+	for_each_possible_cpu(i)
+		total += per_cpu(tcp_orphan_count, i);
+
+	return max(total, 0);
+}
+
+static int tcp_orphan_cache;
+static struct timer_list tcp_orphan_timer;
+#define TCP_ORPHAN_TIMER_PERIOD msecs_to_jiffies(100)
+
+static void tcp_orphan_update(struct timer_list *unused)
+{
+	WRITE_ONCE(tcp_orphan_cache, tcp_orphan_count_sum());
+	mod_timer(&tcp_orphan_timer, jiffies + TCP_ORPHAN_TIMER_PERIOD);
+}
+
+static bool tcp_too_many_orphans(int shift)
+{
+	return READ_ONCE(tcp_orphan_cache) << shift > sysctl_tcp_max_orphans;
+}
+
 bool tcp_check_oom(struct sock *sk, int shift)
 {
 	bool too_many_orphans, out_of_socket_memory;
 
-	too_many_orphans = tcp_too_many_orphans(sk, shift);
+	too_many_orphans = tcp_too_many_orphans(shift);
 	out_of_socket_memory = tcp_out_of_memory(sk);
 
 	if (too_many_orphans)
@@ -2508,7 +2533,7 @@ adjudge_to_death:
 	/* remove backlog if any, without releasing ownership. */
 	__release_sock(sk);
 
-	percpu_counter_inc(sk->sk_prot->orphan_count);
+	this_cpu_inc(tcp_orphan_count);
 
 	/* Have we already been destroyed by a softirq or backlog? */
 	if (state != TCP_CLOSE && sk->sk_state == TCP_CLOSE)
@@ -4145,7 +4170,10 @@ void __init tcp_init(void)
 		     sizeof_field(struct sk_buff, cb));
 
 	percpu_counter_init(&tcp_sockets_allocated, 0, GFP_KERNEL);
-	percpu_counter_init(&tcp_orphan_count, 0, GFP_KERNEL);
+
+	timer_setup(&tcp_orphan_timer, tcp_orphan_update, TIMER_DEFERRABLE);
+	mod_timer(&tcp_orphan_timer, jiffies + TCP_ORPHAN_TIMER_PERIOD);
+
 	inet_hashinfo_init(&tcp_hashinfo);
 	inet_hashinfo2_init(&tcp_hashinfo, "tcp_listen_portaddr_hash",
 			    thash_entries, 21,  /* one slot per 2 MB*/
-- 
GitLab


From 3424931fa39e90b9beeb309380189ff1d1b18cb5 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 4 Oct 2021 13:38:06 +0300
Subject: [PATCH 1250/4878] drm/msm: potential error pointer dereference in
 init()

[ Upstream commit b6816441a14bbe356ba8590de79cfea2de6a085c ]

The msm_iommu_new() returns error pointers on failure so check for that
to avoid an Oops.

Fixes: ccac7ce373c1 ("drm/msm: Refactor address space initialization")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211004103806.GD25015@kili
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index c8217f4858a15..b4a2e8eb35dd2 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -846,6 +846,10 @@ static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms)
 		return 0;
 
 	mmu = msm_iommu_new(dpu_kms->dev->dev, domain);
+	if (IS_ERR(mmu)) {
+		iommu_domain_free(domain);
+		return PTR_ERR(mmu);
+	}
 	aspace = msm_gem_address_space_create(mmu, "dpu1",
 		0x1000, 0x100000000 - 0x1000);
 
-- 
GitLab


From 14d24157722701de86fe45f917f6cdb62bd242f3 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Oct 2021 11:13:15 +0300
Subject: [PATCH 1251/4878] drm/msm: uninitialized variable in msm_gem_import()

[ Upstream commit 2203bd0e5c12ffc53ffdd4fbd7b12d6ba27e0424 ]

The msm_gem_new_impl() function cleans up after itself so there is no
need to call drm_gem_object_put().  Conceptually, it does not make sense
to call a kref_put() function until after the reference counting has
been initialized which happens immediately after this call in the
drm_gem_(private_)object_init() functions.

In the msm_gem_import() function the "obj" pointer is uninitialized, so
it will lead to a crash.

Fixes: 05b849111c07 ("drm/msm: prime support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211013081315.GG6010@kili
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/msm_gem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 04be4cfcccc18..819567e40565c 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -1061,7 +1061,7 @@ static struct drm_gem_object *_msm_gem_new(struct drm_device *dev,
 
 	ret = msm_gem_new_impl(dev, size, flags, &obj);
 	if (ret)
-		goto fail;
+		return ERR_PTR(ret);
 
 	msm_obj = to_msm_bo(obj);
 
@@ -1149,7 +1149,7 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 
 	ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj);
 	if (ret)
-		goto fail;
+		return ERR_PTR(ret);
 
 	drm_gem_private_object_init(dev, obj, size);
 
-- 
GitLab


From daf15fa1fd997749e881aedd9f03f73a11240e82 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Fri, 15 Oct 2021 06:37:39 -0700
Subject: [PATCH 1252/4878] net: stream: don't purge sk_error_queue in
 sk_stream_kill_queues()

[ Upstream commit 24bcbe1cc69fa52dc4f7b5b2456678ed464724d8 ]

sk_stream_kill_queues() can be called on close when there are
still outstanding skbs to transmit. Those skbs may try to queue
notifications to the error queue (e.g. timestamps).
If sk_stream_kill_queues() purges the queue without taking
its lock the queue may get corrupted, and skbs leaked.

This shows up as a warning about an rmem leak:

WARNING: CPU: 24 PID: 0 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x...

The leak is always a multiple of 0x300 bytes (the value is in
%rax on my builds, so RAX: 0000000000000300). 0x300 is truesize of
an empty sk_buff. Indeed if we dump the socket state at the time
of the warning the sk_error_queue is often (but not always)
corrupted. The ->next pointer points back at the list head,
but not the ->prev pointer. Indeed we can find the leaked skb
by scanning the kernel memory for something that looks like
an skb with ->sk = socket in question, and ->truesize = 0x300.
The contents of ->cb[] of the skb confirms the suspicion that
it is indeed a timestamp notification (as generated in
__skb_complete_tx_timestamp()).

Removing purging of sk_error_queue should be okay, since
inet_sock_destruct() does it again once all socket refs
are gone. Eric suggests this may cause sockets that go
thru disconnect() to maintain notifications from the
previous incarnations of the socket, but that should be
okay since the race was there anyway, and disconnect()
is not exactly dependable.

Thanks to Jonathan Lemon and Omar Sandoval for help at various
stages of tracing the issue.

Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/stream.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/core/stream.c b/net/core/stream.c
index 4f1d4aa5fb38d..a166a32b411fa 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -195,9 +195,6 @@ void sk_stream_kill_queues(struct sock *sk)
 	/* First the read buffer. */
 	__skb_queue_purge(&sk->sk_receive_queue);
 
-	/* Next, the error queue. */
-	__skb_queue_purge(&sk->sk_error_queue);
-
 	/* Next, the write queue. */
 	WARN_ON(!skb_queue_empty(&sk->sk_write_queue));
 
-- 
GitLab


From 7c1c7ac9d13addf1fbe27c86d2838ebeb0e3b0be Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Wed, 13 Oct 2021 09:14:10 +0100
Subject: [PATCH 1253/4878] media: ir_toy: assignment to be16 should be of
 correct type

[ Upstream commit febfe985fc2ea052a363f6525ff624b8efd5273c ]

commit f0c15b360fb6 ("media: ir_toy: prevent device from hanging during
transmit") removed a cpu_to_be16() cast, which causes a sparse warning.

Fixes: f0c15b360fb6 ("media: ir_toy: prevent device from hanging during transmit")
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/rc/ir_toy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/rc/ir_toy.c b/drivers/media/rc/ir_toy.c
index 48d52baec1a1c..1aa7989e756cc 100644
--- a/drivers/media/rc/ir_toy.c
+++ b/drivers/media/rc/ir_toy.c
@@ -310,7 +310,7 @@ static int irtoy_tx(struct rc_dev *rc, uint *txbuf, uint count)
 		buf[i] = cpu_to_be16(v);
 	}
 
-	buf[count] = 0xffff;
+	buf[count] = cpu_to_be16(0xffff);
 
 	irtoy->tx_buf = buf;
 	irtoy->tx_len = size;
-- 
GitLab


From 25c032c585a216b3b713408ee1a5c2f144dd84a0 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 16 Oct 2021 08:21:44 +0200
Subject: [PATCH 1254/4878] mmc: mxs-mmc: disable regulator on error and in the
 remove function

[ Upstream commit ce5f6c2c9b0fcb4094f8e162cfd37fb4294204f7 ]

The 'reg_vmmc' regulator is enabled in the probe. It is never disabled.
Neither in the error handling path of the probe nor in the remove
function.

Register a devm_action to disable it when needed.

Fixes: 4dc5a79f1350 ("mmc: mxs-mmc: enable regulator for mmc slot")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/4aadb3c97835f7b80f00819c3d549e6130384e67.1634365151.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/mxs-mmc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 4fbbff03137c3..2ec3eb651d6b5 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -565,6 +565,11 @@ static const struct of_device_id mxs_mmc_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, mxs_mmc_dt_ids);
 
+static void mxs_mmc_regulator_disable(void *regulator)
+{
+	regulator_disable(regulator);
+}
+
 static int mxs_mmc_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *of_id =
@@ -606,6 +611,11 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 				"Failed to enable vmmc regulator: %d\n", ret);
 			goto out_mmc_free;
 		}
+
+		ret = devm_add_action_or_reset(&pdev->dev, mxs_mmc_regulator_disable,
+					       reg_vmmc);
+		if (ret)
+			goto out_mmc_free;
 	}
 
 	ssp->clk = devm_clk_get(&pdev->dev, NULL);
-- 
GitLab


From 4187bf331010ae3cfb46de008d4f0d418c03ce08 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Mon, 18 Oct 2021 11:25:37 -0700
Subject: [PATCH 1255/4878] platform/x86: thinkpad_acpi: Fix bitwise vs.
 logical warning

[ Upstream commit fd96e35ea7b95f1e216277805be89d66e4ae962d ]

A new warning in clang points out a use of bitwise OR with boolean
expressions in this driver:

drivers/platform/x86/thinkpad_acpi.c:9061:11: error: use of bitwise '|' with boolean operands [-Werror,-Wbitwise-instead-of-logical]
        else if ((strlencmp(cmd, "level disengaged") == 0) |
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                           ||
drivers/platform/x86/thinkpad_acpi.c:9061:11: note: cast one or both operands to int to silence this warning
1 error generated.

This should clearly be a logical OR so change it to fix the warning.

Fixes: fe98a52ce754 ("ACPI: thinkpad-acpi: add sysfs support to fan subdriver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1476
Reported-by: Tor Vic <torvic9@mailbox.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211018182537.2316800-1-nathan@kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/thinkpad_acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 5c2f2e337b57b..2a313643e0388 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -9097,7 +9097,7 @@ static int fan_write_cmd_level(const char *cmd, int *rc)
 
 	if (strlencmp(cmd, "level auto") == 0)
 		level = TP_EC_FAN_AUTO;
-	else if ((strlencmp(cmd, "level disengaged") == 0) |
+	else if ((strlencmp(cmd, "level disengaged") == 0) ||
 			(strlencmp(cmd, "level full-speed") == 0))
 		level = TP_EC_FAN_FULLSPEED;
 	else if (sscanf(cmd, "level %d", &level) != 1)
-- 
GitLab


From 4d5c7f07c725607188781355fe5fead203658161 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 21 Jun 2021 23:53:22 +0200
Subject: [PATCH 1256/4878] mt76: mt7615: fix endianness warning in
 mt7615_mac_write_txwi

[ Upstream commit d81bfb41e30c42531536c5d2baa4d275a8309715 ]

Fix the following sparse warning in mt7615_mac_write_txwi routine:
drivers/net/wireless/mediatek/mt76/mt7615/mac.c:758:17:
	warning: incorrect type in assignment
	expected restricted __le32 [usertype]
	got unsigned long

Fixes: 04b8e65922f63 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Fixes: d4bf77bd74930 ("mt76: mt7615: introduce mt7663u support to mt7615_write_txwi")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index f44f478bb970e..424be103093c6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -672,12 +672,15 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
 	if (info->flags & IEEE80211_TX_CTL_NO_ACK)
 		txwi[3] |= cpu_to_le32(MT_TXD3_NO_ACK);
 
-	txwi[7] = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
-		  FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype) |
-		  FIELD_PREP(MT_TXD7_SPE_IDX, 0x18);
-	if (!is_mmio)
-		txwi[8] = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
-			  FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
+	val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
+	      FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype) |
+	      FIELD_PREP(MT_TXD7_SPE_IDX, 0x18);
+	txwi[7] = cpu_to_le32(val);
+	if (!is_mmio) {
+		val = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
+		      FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
+		txwi[8] = cpu_to_le32(val);
+	}
 
 	return 0;
 }
-- 
GitLab


From 7a8e4effbbbcb04aa02e1d29909b751350b56fb3 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 22 Jun 2021 09:48:30 +0200
Subject: [PATCH 1257/4878] mt76: mt76x02: fix endianness warnings in
 mt76x02_mac.c

[ Upstream commit c33edef520213feccebc22c9474c685b9fb60611 ]

Fix the following sparse warning in mt76x02_mac_write_txwi and
mt76x02_mac_tx_rate_val routines:
drivers/net/wireless/mediatek/mt76/mt76x02_mac.c:237:19:
	warning: restricted __le16 degrades to intege
	warning: cast from restricted __le16
drivers/net/wireless/mediatek/mt76/mt76x02_mac.c:383:28:
	warning: incorrect type in assignment (different base types)
	expected restricted __le16 [usertype] rate
	got unsigned long

Fixes: db9f11d3433f7 ("mt76: store wcid tx rate info in one u32 reduce locking")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
index da6d3f51f6d47..677082d8659a6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
@@ -176,7 +176,7 @@ void mt76x02_mac_wcid_set_drop(struct mt76x02_dev *dev, u8 idx, bool drop)
 		mt76_wr(dev, MT_WCID_DROP(idx), (val & ~bit) | (bit * drop));
 }
 
-static __le16
+static u16
 mt76x02_mac_tx_rate_val(struct mt76x02_dev *dev,
 			const struct ieee80211_tx_rate *rate, u8 *nss_val)
 {
@@ -222,14 +222,14 @@ mt76x02_mac_tx_rate_val(struct mt76x02_dev *dev,
 		rateval |= MT_RXWI_RATE_SGI;
 
 	*nss_val = nss;
-	return cpu_to_le16(rateval);
+	return rateval;
 }
 
 void mt76x02_mac_wcid_set_rate(struct mt76x02_dev *dev, struct mt76_wcid *wcid,
 			       const struct ieee80211_tx_rate *rate)
 {
 	s8 max_txpwr_adj = mt76x02_tx_get_max_txpwr_adj(dev, rate);
-	__le16 rateval;
+	u16 rateval;
 	u32 tx_info;
 	s8 nss;
 
@@ -342,7 +342,7 @@ void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi,
 	struct ieee80211_key_conf *key = info->control.hw_key;
 	u32 wcid_tx_info;
 	u16 rate_ht_mask = FIELD_PREP(MT_RXWI_RATE_PHY, BIT(1) | BIT(2));
-	u16 txwi_flags = 0;
+	u16 txwi_flags = 0, rateval;
 	u8 nss;
 	s8 txpwr_adj, max_txpwr_adj;
 	u8 ccmp_pn[8], nstreams = dev->chainmask & 0xf;
@@ -380,14 +380,15 @@ void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi,
 
 	if (wcid && (rate->idx < 0 || !rate->count)) {
 		wcid_tx_info = wcid->tx_info;
-		txwi->rate = FIELD_GET(MT_WCID_TX_INFO_RATE, wcid_tx_info);
+		rateval = FIELD_GET(MT_WCID_TX_INFO_RATE, wcid_tx_info);
 		max_txpwr_adj = FIELD_GET(MT_WCID_TX_INFO_TXPWR_ADJ,
 					  wcid_tx_info);
 		nss = FIELD_GET(MT_WCID_TX_INFO_NSS, wcid_tx_info);
 	} else {
-		txwi->rate = mt76x02_mac_tx_rate_val(dev, rate, &nss);
+		rateval = mt76x02_mac_tx_rate_val(dev, rate, &nss);
 		max_txpwr_adj = mt76x02_tx_get_max_txpwr_adj(dev, rate);
 	}
+	txwi->rate = cpu_to_le16(rateval);
 
 	txpwr_adj = mt76x02_tx_get_txpwr_adj(dev, dev->txpower_conf,
 					     max_txpwr_adj);
-- 
GitLab


From 116652a3d5dd969ee649133afaef1636bf242b56 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 14 Sep 2021 18:42:51 +0200
Subject: [PATCH 1258/4878] mt76: mt7915: fix possible infinite loop release
 semaphore

[ Upstream commit e500c9470e26be66eb2bc6de773ae9091149118a ]

Fix possible infinite loop in mt7915_load_patch if
mt7915_mcu_patch_sem_ctrl always returns an error.

Fixes: e57b7901469fc ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 7c2d09a64882e..c36c7b0e918a4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -2648,7 +2648,7 @@ out:
 	default:
 		ret = -EAGAIN;
 		dev_err(dev->mt76.dev, "Failed to release patch semaphore\n");
-		goto out;
+		break;
 	}
 	release_firmware(fw);
 
-- 
GitLab


From 1a270dada03552989f5b8619557f96c022263235 Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Mon, 18 Oct 2021 16:07:02 +0800
Subject: [PATCH 1259/4878] mt76: mt7915: fix sta_rec_wtbl tag len

[ Upstream commit afa0370f3a3a64af6d368da0bedd72ab2a026cd0 ]

Fix tag len error for sta_rec_wtbl, which causes fw parsing error for
the tags placed behind it.

Fixes: e57b7901469f ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index c36c7b0e918a4..63bc4577c5c57 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -667,7 +667,7 @@ mt7915_mcu_alloc_wtbl_req(struct mt7915_dev *dev, struct mt7915_sta *msta,
 	}
 
 	if (sta_hdr)
-		sta_hdr->len = cpu_to_le16(sizeof(hdr));
+		le16_add_cpu(&sta_hdr->len, sizeof(hdr));
 
 	return skb_put_data(nskb, &hdr, sizeof(hdr));
 }
-- 
GitLab


From e27022647529f4d9d313bae8f175bd7ac83f02cf Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Mon, 18 Oct 2021 16:07:04 +0800
Subject: [PATCH 1260/4878] mt76: mt7915: fix muar_idx in
 mt7915_mcu_alloc_sta_req()

[ Upstream commit 161cc13912d3c3e8857001988dfba39be842454a ]

For broadcast/multicast wcid, the muar_idx should be 0xe.

Fixes: e57b7901469f ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 63bc4577c5c57..7b6e9a5352b35 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -631,7 +631,7 @@ mt7915_mcu_alloc_sta_req(struct mt7915_dev *dev, struct mt7915_vif *mvif,
 		.bss_idx = mvif->idx,
 		.wlan_idx_lo = msta ? to_wcid_lo(msta->wcid.idx) : 0,
 		.wlan_idx_hi = msta ? to_wcid_hi(msta->wcid.idx) : 0,
-		.muar_idx = msta ? mvif->omac_idx : 0,
+		.muar_idx = msta && msta->wcid.sta ? mvif->omac_idx : 0xe,
 		.is_tlv_append = 1,
 	};
 	struct sk_buff *skb;
-- 
GitLab


From 4ed5bb3df6c74b982800205ea566605e6ced6339 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Fri, 15 Oct 2021 12:03:35 +0800
Subject: [PATCH 1261/4878] rsi: stop thread firstly in rsi_91x_init() error
 handling

[ Upstream commit 515e7184bdf0a3ebf1757cc77fb046b4fe282189 ]

When fail to init coex module, free 'common' and 'adapter' directly, but
common->tx_thread which will access 'common' and 'adapter' is running at
the same time. That will trigger the UAF bug.

==================================================================
BUG: KASAN: use-after-free in rsi_tx_scheduler_thread+0x50f/0x520 [rsi_91x]
Read of size 8 at addr ffff8880076dc000 by task Tx-Thread/124777
CPU: 0 PID: 124777 Comm: Tx-Thread Not tainted 5.15.0-rc5+ #19
Call Trace:
 dump_stack_lvl+0xe2/0x152
 print_address_description.constprop.0+0x21/0x140
 ? rsi_tx_scheduler_thread+0x50f/0x520
 kasan_report.cold+0x7f/0x11b
 ? rsi_tx_scheduler_thread+0x50f/0x520
 rsi_tx_scheduler_thread+0x50f/0x520
...

Freed by task 111873:
 kasan_save_stack+0x1b/0x40
 kasan_set_track+0x1c/0x30
 kasan_set_free_info+0x20/0x30
 __kasan_slab_free+0x109/0x140
 kfree+0x117/0x4c0
 rsi_91x_init+0x741/0x8a0 [rsi_91x]
 rsi_probe+0x9f/0x1750 [rsi_usb]

Stop thread before free 'common' and 'adapter' to fix it.

Fixes: 2108df3c4b18 ("rsi: add coex support")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211015040335.1021546-1-william.xuanziyang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/rsi/rsi_91x_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/rsi/rsi_91x_main.c b/drivers/net/wireless/rsi/rsi_91x_main.c
index 0a2f8b4f447bd..8c638cfeac52f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_main.c
+++ b/drivers/net/wireless/rsi/rsi_91x_main.c
@@ -369,6 +369,7 @@ struct rsi_hw *rsi_91x_init(u16 oper_mode)
 	if (common->coex_mode > 1) {
 		if (rsi_coex_attach(common)) {
 			rsi_dbg(ERR_ZONE, "Failed to init coex module\n");
+			rsi_kill_thread(&common->tx_thread);
 			goto err;
 		}
 	}
-- 
GitLab


From 14e12b7a763e50776d6176639f375a34e3bc7ceb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Dre=C3=9Fler?= <verdre@v0yd.nl>
Date: Sat, 16 Oct 2021 17:32:43 +0200
Subject: [PATCH 1262/4878] mwifiex: Send DELBA requests according to spec
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit cc8a8bc37466f79b24d972555237f3d591150602 ]

While looking at on-air packets using Wireshark, I noticed we're never
setting the initiator bit when sending DELBA requests to the AP: While
we set the bit on our del_ba_param_set bitmask, we forget to actually
copy that bitmask over to the command struct, which means we never
actually set the initiator bit.

Fix that and copy the bitmask over to the host_cmd_ds_11n_delba command
struct.

Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver")
Signed-off-by: Jonas Dreßler <verdre@v0yd.nl>
Acked-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211016153244.24353-5-verdre@v0yd.nl
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/11n.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/11n.c b/drivers/net/wireless/marvell/mwifiex/11n.c
index 6696bce561786..cf08a4af84d6d 100644
--- a/drivers/net/wireless/marvell/mwifiex/11n.c
+++ b/drivers/net/wireless/marvell/mwifiex/11n.c
@@ -657,14 +657,15 @@ int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
 	uint16_t del_ba_param_set;
 
 	memset(&delba, 0, sizeof(delba));
-	delba.del_ba_param_set = cpu_to_le16(tid << DELBA_TID_POS);
 
-	del_ba_param_set = le16_to_cpu(delba.del_ba_param_set);
+	del_ba_param_set = tid << DELBA_TID_POS;
+
 	if (initiator)
 		del_ba_param_set |= IEEE80211_DELBA_PARAM_INITIATOR_MASK;
 	else
 		del_ba_param_set &= ~IEEE80211_DELBA_PARAM_INITIATOR_MASK;
 
+	delba.del_ba_param_set = cpu_to_le16(del_ba_param_set);
 	memcpy(&delba.peer_mac_addr, peer_mac, ETH_ALEN);
 
 	/* We don't wait for the response of this command */
-- 
GitLab


From d405eb1150ce83f24bdaf935e362af2982db8a2f Mon Sep 17 00:00:00 2001
From: Tim Gardner <tim.gardner@canonical.com>
Date: Tue, 19 Oct 2021 12:19:50 -0600
Subject: [PATCH 1263/4878] net: enetc: unmap DMA in enetc_send_cmd()

[ Upstream commit cd4bc63de774eee95e9bac26a565cd80e0fca421 ]

Coverity complains of a possible dereference of a null return value.

   	5. returned_null: kzalloc returns NULL. [show details]
   	6. var_assigned: Assigning: si_data = NULL return value from kzalloc.
488        si_data = kzalloc(data_size, __GFP_DMA | GFP_KERNEL);
489        cbd.length = cpu_to_le16(data_size);
490
491        dma = dma_map_single(&priv->si->pdev->dev, si_data,
492                             data_size, DMA_FROM_DEVICE);

While this kzalloc() is unlikely to fail, I did notice that the function
returned without unmapping si_data.

Fix this by refactoring the error paths and checking for kzalloc()
failure.

Fixes: 888ae5a3952ba ("net: enetc: add tc flower psfp offload driver")
Cc: Claudiu Manoil <claudiu.manoil@nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org (open list)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/freescale/enetc/enetc_qos.c   | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
index dbceb99c4441a..9e6988fd3787a 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
@@ -486,14 +486,16 @@ static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
 
 	data_size = sizeof(struct streamid_data);
 	si_data = kzalloc(data_size, __GFP_DMA | GFP_KERNEL);
+	if (!si_data)
+		return -ENOMEM;
 	cbd.length = cpu_to_le16(data_size);
 
 	dma = dma_map_single(&priv->si->pdev->dev, si_data,
 			     data_size, DMA_FROM_DEVICE);
 	if (dma_mapping_error(&priv->si->pdev->dev, dma)) {
 		netdev_err(priv->si->ndev, "DMA mapping failed!\n");
-		kfree(si_data);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto out;
 	}
 
 	cbd.addr[0] = lower_32_bits(dma);
@@ -513,12 +515,10 @@ static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
 
 	err = enetc_send_cmd(priv->si, &cbd);
 	if (err)
-		return -EINVAL;
+		goto out;
 
-	if (!enable) {
-		kfree(si_data);
-		return 0;
-	}
+	if (!enable)
+		goto out;
 
 	/* Enable the entry overwrite again incase space flushed by hardware */
 	memset(&cbd, 0, sizeof(cbd));
@@ -563,6 +563,10 @@ static int enetc_streamid_hw_set(struct enetc_ndev_priv *priv,
 	}
 
 	err = enetc_send_cmd(priv->si, &cbd);
+out:
+	if (!dma_mapping_error(&priv->si->pdev->dev, dma))
+		dma_unmap_single(&priv->si->pdev->dev, dma, data_size, DMA_FROM_DEVICE);
+
 	kfree(si_data);
 
 	return err;
-- 
GitLab


From 7668cbe0cb77fdbe8ae09146fe3b94392ec6eebf Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Tue, 19 Oct 2021 21:16:47 +0200
Subject: [PATCH 1264/4878] phy: micrel: ksz8041nl: do not use power down mode

[ Upstream commit 2641b62d2fab52648e34cdc6994b2eacde2d27c1 ]

Some Micrel KSZ8041NL PHY chips exhibit continuous RX errors after using
the power down mode bit (0.11). If the PHY is taken out of power down
mode in a certain temperature range, the PHY enters a weird state which
leads to continuously reporting RX errors. In that state, the MAC is not
able to receive or send any Ethernet frames and the activity LED is
constantly blinking. Since Linux is using the suspend callback when the
interface is taken down, ending up in that state can easily happen
during a normal startup.

Micrel confirmed the issue in errata DS80000700A [*], caused by abnormal
clock recovery when using power down mode. Even the latest revision (A4,
Revision ID 0x1513) seems to suffer that problem, and according to the
errata is not going to be fixed.

Remove the suspend/resume callback to avoid using the power down mode
completely.

[*] https://ww1.microchip.com/downloads/en/DeviceDoc/80000700A.pdf

Fixes: 1a5465f5d6a2 ("phy/micrel: Add suspend/resume support to Micrel PHYs")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/micrel.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index b341a8be09f92..92e94ac94a342 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -1216,8 +1216,9 @@ static struct phy_driver ksphy_driver[] = {
 	.get_sset_count = kszphy_get_sset_count,
 	.get_strings	= kszphy_get_strings,
 	.get_stats	= kszphy_get_stats,
-	.suspend	= genphy_suspend,
-	.resume		= genphy_resume,
+	/* No suspend/resume callbacks because of errata DS80000700A,
+	 * receiver error following software power down.
+	 */
 }, {
 	.phy_id		= PHY_ID_KSZ8041RNLI,
 	.phy_id_mask	= MICREL_PHY_ID_MASK,
-- 
GitLab


From e8c0b748456a42b619449e416529f497e01e19d7 Mon Sep 17 00:00:00 2001
From: Max Gurtovoy <mgurtovoy@nvidia.com>
Date: Sun, 17 Oct 2021 11:58:16 +0300
Subject: [PATCH 1265/4878] nvme-rdma: fix error code in nvme_rdma_setup_ctrl

[ Upstream commit 09748122009aed7bfaa7acc33c10c083a4758322 ]

In case that icdoff is not zero or mandatory keyed sgls are not
supported by the NVMe/RDMA target, we'll go to error flow but we'll
return 0 to the caller. Fix it by returning an appropriate error code.

Fixes: c66e2998c8ca ("nvme-rdma: centralize controller setup sequence")
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/rdma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 51f4647ea2142..1b90563818434 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1103,11 +1103,13 @@ static int nvme_rdma_setup_ctrl(struct nvme_rdma_ctrl *ctrl, bool new)
 		return ret;
 
 	if (ctrl->ctrl.icdoff) {
+		ret = -EOPNOTSUPP;
 		dev_err(ctrl->ctrl.device, "icdoff is not supported!\n");
 		goto destroy_admin;
 	}
 
 	if (!(ctrl->ctrl.sgls & (1 << 2))) {
+		ret = -EOPNOTSUPP;
 		dev_err(ctrl->ctrl.device,
 			"Mandatory keyed sgls are not supported!\n");
 		goto destroy_admin;
-- 
GitLab


From b9f142d748b6db8e8c9850323d86651a10b77a44 Mon Sep 17 00:00:00 2001
From: Anders Roxell <anders.roxell@linaro.org>
Date: Thu, 7 Oct 2021 21:13:37 +0200
Subject: [PATCH 1266/4878] PM: hibernate: fix sparse warnings

[ Upstream commit 01de5fcd8b1ac0ca28d2bb0921226a54fdd62684 ]

When building the kernel with sparse enabled 'C=1' the following
warnings shows up:

kernel/power/swap.c:390:29: warning: incorrect type in assignment (different base types)
kernel/power/swap.c:390:29:    expected int ret
kernel/power/swap.c:390:29:    got restricted blk_status_t

This is due to function hib_wait_io() returns a 'blk_status_t' which is
a bitwise u8. Commit 5416da01ff6e ("PM: hibernate: Remove
blk_status_to_errno in hib_wait_io") seemed to have mixed up the return
type. However, the 4e4cbee93d56 ("block: switch bios to blk_status_t")
actually broke the behaviour by returning the wrong type.

Rework so function hib_wait_io() returns a 'int' instead of
'blk_status_t' and make sure to call function
blk_status_to_errno(hb->error)' when returning from function
hib_wait_io() a int gets returned.

Fixes: 4e4cbee93d56 ("block: switch bios to blk_status_t")
Fixes: 5416da01ff6e ("PM: hibernate: Remove blk_status_to_errno in hib_wait_io")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/power/swap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index c9126606fa6f4..25e7cb96bb884 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -299,7 +299,7 @@ static int hib_submit_io(int op, int op_flags, pgoff_t page_off, void *addr,
 	return error;
 }
 
-static blk_status_t hib_wait_io(struct hib_bio_batch *hb)
+static int hib_wait_io(struct hib_bio_batch *hb)
 {
 	/*
 	 * We are relying on the behavior of blk_plug that a thread with
-- 
GitLab


From 8e2f97df6a0b489dd6e35d62082cdc3dc08d3ca3 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Sat, 28 Aug 2021 10:57:47 -0700
Subject: [PATCH 1267/4878] clocksource/drivers/timer-ti-dm: Select TIMER_OF

[ Upstream commit eda9a4f7af6ee47e9e131f20e4f8a41a97379293 ]

When building OMAP_DM_TIMER without TIMER_OF, there are orphan sections
due to the use of TIMER_OF_DELCARE() without CONFIG_TIMER_OF. Select
CONFIG_TIMER_OF when enaling OMAP_DM_TIMER:

arm-linux-gnueabi-ld: warning: orphan section `__timer_of_table' from `drivers/clocksource/timer-ti-dm-systimer.o' being placed in section `__timer_of_table'

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202108282255.tkdt4ani-lkp@intel.com/
Cc: Tony Lindgren <tony@atomide.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: linux-omap@vger.kernel.org
Fixes: 52762fbd1c47 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210828175747.3777891-1-keescook@chromium.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clocksource/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 39f4d88662002..a0c6e88bebe08 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -24,6 +24,7 @@ config I8253_LOCK
 
 config OMAP_DM_TIMER
 	bool
+	select TIMER_OF
 
 config CLKBLD_I8253
 	def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
-- 
GitLab


From 6d1f3157aa9b52fecb259916925ae164ebfa7ccb Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 21 Oct 2021 10:08:32 +0200
Subject: [PATCH 1268/4878] x86/sev: Fix stack type check in
 vc_switch_off_ist()

[ Upstream commit 5681981fb788281b09a4ea14d310d30b2bd89132 ]

The value of STACK_TYPE_EXCEPTION_LAST points to the last _valid_
exception stack. Reflect that in the check done in the
vc_switch_off_ist() function.

Fixes: a13644f3a53de ("x86/entry/64: Add entry code for #VC handler")
Reported-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211021080833.30875-2-joro@8bytes.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 7692bf7908e6c..143fcb8af38f4 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -701,7 +701,7 @@ asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *r
 	stack = (unsigned long *)sp;
 
 	if (!get_stack_info_noinstr(stack, current, &info) || info.type == STACK_TYPE_ENTRY ||
-	    info.type >= STACK_TYPE_EXCEPTION_LAST)
+	    info.type > STACK_TYPE_EXCEPTION_LAST)
 		sp = __this_cpu_ist_top_va(VC2);
 
 sync:
-- 
GitLab


From 807f01f60cd0a9b0c3154d7b635b02b8002d3c9f Mon Sep 17 00:00:00 2001
From: Jessica Zhang <jesszhan@codeaurora.org>
Date: Wed, 20 Oct 2021 10:57:33 -0700
Subject: [PATCH 1269/4878] drm/msm: Fix potential NULL dereference in DPU SSPP

[ Upstream commit 8bf71a5719b6cc5b6ba358096081e5d50ea23ab6 ]

Move initialization of sblk in _sspp_subblk_offset() after NULL check to
avoid potential NULL pointer dereference.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jessica Zhang <jesszhan@codeaurora.org>
Link: https://lore.kernel.org/r/20211020175733.3379-1-jesszhan@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
index c940b69435e16..016c462bdb5d2 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c
@@ -138,11 +138,13 @@ static int _sspp_subblk_offset(struct dpu_hw_pipe *ctx,
 		u32 *idx)
 {
 	int rc = 0;
-	const struct dpu_sspp_sub_blks *sblk = ctx->cap->sblk;
+	const struct dpu_sspp_sub_blks *sblk;
 
-	if (!ctx)
+	if (!ctx || !ctx->cap || !ctx->cap->sblk)
 		return -EINVAL;
 
+	sblk = ctx->cap->sblk;
+
 	switch (s_id) {
 	case DPU_SSPP_SRC:
 		*idx = sblk->src_blk.base;
@@ -419,7 +421,7 @@ static void _dpu_hw_sspp_setup_scaler3(struct dpu_hw_pipe *ctx,
 
 	(void)pe;
 	if (_sspp_subblk_offset(ctx, DPU_SSPP_SCALER_QSEED3, &idx) || !sspp
-		|| !scaler3_cfg || !ctx || !ctx->cap || !ctx->cap->sblk)
+		|| !scaler3_cfg)
 		return;
 
 	dpu_hw_setup_scaler3(&ctx->hw, scaler3_cfg, idx,
-- 
GitLab


From d33753718156254a474055817a72de83831e43bc Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: Tue, 19 Oct 2021 20:27:26 +0900
Subject: [PATCH 1270/4878] smackfs: use netlbl_cfg_cipsov4_del() for deleting
 cipso_v4_doi

[ Upstream commit 0934ad42bb2c5df90a1b9de690f93de735b622fe ]

syzbot is reporting UAF at cipso_v4_doi_search() [1], for smk_cipso_doi()
is calling kfree() without removing from the cipso_v4_doi_list list after
netlbl_cfg_cipsov4_map_add() returned an error. We need to use
netlbl_cfg_cipsov4_del() in order to remove from the list and wait for
RCU grace period before kfree().

Link: https://syzkaller.appspot.com/bug?extid=93dba5b91f0fed312cbd [1]
Reported-by: syzbot <syzbot+93dba5b91f0fed312cbd@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 6c2e8ac0953fccdd ("netlabel: Update kernel configuration API")
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/smack/smackfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index ca0daba11f814..3eabcc469669e 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -712,7 +712,7 @@ static void smk_cipso_doi(void)
 	if (rc != 0) {
 		printk(KERN_WARNING "%s:%d map add rc = %d\n",
 		       __func__, __LINE__, rc);
-		kfree(doip);
+		netlbl_cfg_cipsov4_del(doip->doi, &nai);
 		return;
 	}
 }
-- 
GitLab


From 293fa72d62e46bc5f8044be7204869efad4b4d0c Mon Sep 17 00:00:00 2001
From: Ricardo Koller <ricarkol@google.com>
Date: Wed, 10 Feb 2021 03:17:19 +0000
Subject: [PATCH 1271/4878] KVM: selftests: Add operand to vmsave/vmload/vmrun
 in svm.c

[ Upstream commit 47bc726fe8d1910872dc3d7e7ec70f8b9e6043b7 ]

Building the KVM selftests with LLVM's integrated assembler fails with:

  $ CFLAGS=-fintegrated-as make -C tools/testing/selftests/kvm CC=clang
  lib/x86_64/svm.c:77:16: error: too few operands for instruction
          asm volatile ("vmsave\n\t" : : "a" (vmcb_gpa) : "memory");
                        ^
  <inline asm>:1:2: note: instantiated into assembly here
          vmsave
          ^
  lib/x86_64/svm.c:134:3: error: too few operands for instruction
                  "vmload\n\t"
                  ^
  <inline asm>:1:2: note: instantiated into assembly here
          vmload
          ^
This is because LLVM IAS does not currently support calling vmsave,
vmload, or vmload without an explicit %rax operand.

Add an explicit operand to vmsave, vmload, and vmrum in svm.c. Fixing
this was suggested by Sean Christopherson.

Tested: building without this error in clang 11. The following patch
(not queued yet) needs to be applied to solve the other remaining error:
"selftests: kvm: remove reassignment of non-absolute variables".

Suggested-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/kvm/X+Df2oQczVBmwEzi@google.com/
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Message-Id: <20210210031719.769837-1-ricarkol@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/lib/x86_64/svm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/x86_64/svm.c b/tools/testing/selftests/kvm/lib/x86_64/svm.c
index 3a5c72ed2b792..827fe6028dd42 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/svm.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/svm.c
@@ -74,7 +74,7 @@ void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_r
 	wrmsr(MSR_VM_HSAVE_PA, svm->save_area_gpa);
 
 	memset(vmcb, 0, sizeof(*vmcb));
-	asm volatile ("vmsave\n\t" : : "a" (vmcb_gpa) : "memory");
+	asm volatile ("vmsave %0\n\t" : : "a" (vmcb_gpa) : "memory");
 	vmcb_set_seg(&save->es, get_es(), 0, -1U, data_seg_attr);
 	vmcb_set_seg(&save->cs, get_cs(), 0, -1U, code_seg_attr);
 	vmcb_set_seg(&save->ss, get_ss(), 0, -1U, data_seg_attr);
@@ -131,19 +131,19 @@ void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_r
 void run_guest(struct vmcb *vmcb, uint64_t vmcb_gpa)
 {
 	asm volatile (
-		"vmload\n\t"
+		"vmload %[vmcb_gpa]\n\t"
 		"mov rflags, %%r15\n\t"	// rflags
 		"mov %%r15, 0x170(%[vmcb])\n\t"
 		"mov guest_regs, %%r15\n\t"	// rax
 		"mov %%r15, 0x1f8(%[vmcb])\n\t"
 		LOAD_GPR_C
-		"vmrun\n\t"
+		"vmrun %[vmcb_gpa]\n\t"
 		SAVE_GPR_C
 		"mov 0x170(%[vmcb]), %%r15\n\t"	// rflags
 		"mov %%r15, rflags\n\t"
 		"mov 0x1f8(%[vmcb]), %%r15\n\t"	// rax
 		"mov %%r15, guest_regs\n\t"
-		"vmsave\n\t"
+		"vmsave %[vmcb_gpa]\n\t"
 		: : [vmcb] "r" (vmcb), [vmcb_gpa] "a" (vmcb_gpa)
 		: "r15", "memory");
 }
-- 
GitLab


From 7cd4af996cd296f36676416fc1618b3df6fbc985 Mon Sep 17 00:00:00 2001
From: Jim Mattson <jmattson@google.com>
Date: Wed, 29 Sep 2021 17:36:49 -0700
Subject: [PATCH 1272/4878] KVM: selftests: Fix nested SVM tests when built
 with clang

[ Upstream commit ed290e1c20da19fa100a3e0f421aa31b65984960 ]

Though gcc conveniently compiles a simple memset to "rep stos," clang
prefers to call the libc version of memset. If a test is dynamically
linked, the libc memset isn't available in L1 (nor is the PLT or the
GOT, for that matter). Even if the test is statically linked, the libc
memset may choose to use some CPU features, like AVX, which may not be
enabled in L1. Note that __builtin_memset doesn't solve the problem,
because (a) the compiler is free to call memset anyway, and (b)
__builtin_memset may also choose to use features like AVX, which may
not be available in L1.

To avoid a myriad of problems, use an explicit "rep stos" to clear the
VMCB in generic_svm_setup(), which is called both from L0 and L1.

Reported-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Fixes: 20ba262f8631a ("selftests: KVM: AMD Nested test infrastructure")
Message-Id: <20210930003649.4026553-1-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/lib/x86_64/svm.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/lib/x86_64/svm.c b/tools/testing/selftests/kvm/lib/x86_64/svm.c
index 827fe6028dd42..a58507a7b5d6d 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/svm.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/svm.c
@@ -57,6 +57,18 @@ static void vmcb_set_seg(struct vmcb_seg *seg, u16 selector,
 	seg->base = base;
 }
 
+/*
+ * Avoid using memset to clear the vmcb, since libc may not be
+ * available in L1 (and, even if it is, features that libc memset may
+ * want to use, like AVX, may not be enabled).
+ */
+static void clear_vmcb(struct vmcb *vmcb)
+{
+	int n = sizeof(*vmcb) / sizeof(u32);
+
+	asm volatile ("rep stosl" : "+c"(n), "+D"(vmcb) : "a"(0) : "memory");
+}
+
 void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_rsp)
 {
 	struct vmcb *vmcb = svm->vmcb;
@@ -73,7 +85,7 @@ void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_r
 	wrmsr(MSR_EFER, efer | EFER_SVME);
 	wrmsr(MSR_VM_HSAVE_PA, svm->save_area_gpa);
 
-	memset(vmcb, 0, sizeof(*vmcb));
+	clear_vmcb(vmcb);
 	asm volatile ("vmsave %0\n\t" : : "a" (vmcb_gpa) : "memory");
 	vmcb_set_seg(&save->es, get_es(), 0, -1U, data_seg_attr);
 	vmcb_set_seg(&save->cs, get_cs(), 0, -1U, code_seg_attr);
-- 
GitLab


From 0b95aaa493c6b3294a76eebe3930557512fbebfc Mon Sep 17 00:00:00 2001
From: Quentin Monnet <quentin@isovalent.com>
Date: Fri, 22 Oct 2021 10:47:43 +0100
Subject: [PATCH 1273/4878] bpftool: Avoid leaking the JSON writer prepared for
 program metadata

[ Upstream commit e89ef634f81c9d90e1824ab183721f3b361472e6 ]

Bpftool creates a new JSON object for writing program metadata in plain
text mode, regardless of metadata being present or not. Then this writer
is freed if any metadata has been found and printed, but it leaks
otherwise. We cannot destroy the object unconditionally, because the
destructor prints an undesirable line break. Instead, make sure the
writer is created only after we have found program metadata to print.

Found with valgrind.

Fixes: aff52e685eb3 ("bpftool: Support dumping metadata")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211022094743.11052-1-quentin@isovalent.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/bpf/bpftool/prog.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 14237ffb90bae..592536904dde2 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -304,18 +304,12 @@ static void show_prog_metadata(int fd, __u32 num_maps)
 		if (printed_header)
 			jsonw_end_object(json_wtr);
 	} else {
-		json_writer_t *btf_wtr = jsonw_new(stdout);
+		json_writer_t *btf_wtr;
 		struct btf_dumper d = {
 			.btf = btf,
-			.jw = btf_wtr,
 			.is_plain_text = true,
 		};
 
-		if (!btf_wtr) {
-			p_err("jsonw alloc failed");
-			goto out_free;
-		}
-
 		for (i = 0; i < vlen; i++, vsi++) {
 			t_var = btf__type_by_id(btf, vsi->type);
 			name = btf__name_by_offset(btf, t_var->name_off);
@@ -325,6 +319,14 @@ static void show_prog_metadata(int fd, __u32 num_maps)
 
 			if (!printed_header) {
 				printf("\tmetadata:");
+
+				btf_wtr = jsonw_new(stdout);
+				if (!btf_wtr) {
+					p_err("jsonw alloc failed");
+					goto out_free;
+				}
+				d.jw = btf_wtr,
+
 				printed_header = true;
 			}
 
-- 
GitLab


From 4d4d6aa2ef803044badb1529a1bfb45680f4071e Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Wed, 4 Nov 2020 20:33:57 -0800
Subject: [PATCH 1274/4878] libbpf: Fix BTF data layout checks and allow empty
 BTF

[ Upstream commit d8123624506cd62730c9cd9c7672c698e462703d ]

Make data section layout checks stricter, disallowing overlap of types and
strings data.

Additionally, allow BTFs with no type data. There is nothing inherently wrong
with having BTF with no types (put potentially with some strings). This could
be a situation with kernel module BTFs, if module doesn't introduce any new
type information.

Also fix invalid offset alignment check for btf->hdr->type_off.

Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201105043402.2530976-8-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/btf.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 231b07203e3d2..987c1515b828b 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -215,22 +215,18 @@ static int btf_parse_hdr(struct btf *btf)
 		return -EINVAL;
 	}
 
-	if (meta_left < hdr->type_off) {
-		pr_debug("Invalid BTF type section offset:%u\n", hdr->type_off);
+	if (meta_left < hdr->str_off + hdr->str_len) {
+		pr_debug("Invalid BTF total size:%u\n", btf->raw_size);
 		return -EINVAL;
 	}
 
-	if (meta_left < hdr->str_off) {
-		pr_debug("Invalid BTF string section offset:%u\n", hdr->str_off);
+	if (hdr->type_off + hdr->type_len > hdr->str_off) {
+		pr_debug("Invalid BTF data sections layout: type data at %u + %u, strings data at %u + %u\n",
+			 hdr->type_off, hdr->type_len, hdr->str_off, hdr->str_len);
 		return -EINVAL;
 	}
 
-	if (hdr->type_off >= hdr->str_off) {
-		pr_debug("BTF type section offset >= string section offset. No type?\n");
-		return -EINVAL;
-	}
-
-	if (hdr->type_off & 0x02) {
+	if (hdr->type_off % 4) {
 		pr_debug("BTF type section is not aligned to 4 bytes\n");
 		return -EINVAL;
 	}
-- 
GitLab


From 255eb8f8affd23a37c8823c167da9f9e9ad416d0 Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Sat, 9 Jan 2021 23:03:41 -0800
Subject: [PATCH 1275/4878] libbpf: Allow loading empty BTFs

[ Upstream commit b8d52264df85ec12f370c0a8b28d0ac59a05877a ]

Empty BTFs do come up (e.g., simple kernel modules with no new types and
strings, compared to the vmlinux BTF) and there is nothing technically wrong
with them. So remove unnecessary check preventing loading empty BTFs.

Fixes: d8123624506c ("libbpf: Fix BTF data layout checks and allow empty BTF")
Reported-by: Christopher William Snowhill <chris@kode54.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210110070341.1380086-2-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/btf.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 987c1515b828b..c8c751265e23a 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -210,11 +210,6 @@ static int btf_parse_hdr(struct btf *btf)
 	}
 
 	meta_left = btf->raw_size - sizeof(*hdr);
-	if (!meta_left) {
-		pr_debug("BTF has no data\n");
-		return -EINVAL;
-	}
-
 	if (meta_left < hdr->str_off + hdr->str_len) {
 		pr_debug("Invalid BTF total size:%u\n", btf->raw_size);
 		return -EINVAL;
-- 
GitLab


From 12872fd7e40b08c92c90da6f7c16a11a65b68aa2 Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Fri, 22 Oct 2021 17:31:56 -0700
Subject: [PATCH 1276/4878] libbpf: Fix overflow in BTF sanity checks

[ Upstream commit 5245dafe3d49efba4d3285cf27ee1cc1eeafafc6 ]

btf_header's str_off+str_len or type_off+type_len can overflow as they
are u32s. This will lead to bypassing the sanity checks during BTF
parsing, resulting in crashes afterwards. Fix by using 64-bit signed
integers for comparison.

Fixes: d8123624506c ("libbpf: Fix BTF data layout checks and allow empty BTF")
Reported-by: Evgeny Vereshchagin <evvers@ya.ru>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211023003157.726961-1-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/btf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index c8c751265e23a..c15eb14a711e5 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -210,12 +210,12 @@ static int btf_parse_hdr(struct btf *btf)
 	}
 
 	meta_left = btf->raw_size - sizeof(*hdr);
-	if (meta_left < hdr->str_off + hdr->str_len) {
+	if (meta_left < (long long)hdr->str_off + hdr->str_len) {
 		pr_debug("Invalid BTF total size:%u\n", btf->raw_size);
 		return -EINVAL;
 	}
 
-	if (hdr->type_off + hdr->type_len > hdr->str_off) {
+	if ((long long)hdr->type_off + hdr->type_len > hdr->str_off) {
 		pr_debug("Invalid BTF data sections layout: type data at %u + %u, strings data at %u + %u\n",
 			 hdr->type_off, hdr->type_len, hdr->str_off, hdr->str_len);
 		return -EINVAL;
-- 
GitLab


From 50fcaa7155214dbc57c985bb55edb1eb8e880fdb Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Fri, 22 Oct 2021 17:31:57 -0700
Subject: [PATCH 1277/4878] libbpf: Fix BTF header parsing checks

[ Upstream commit c825f5fee19caf301d9821cd79abaa734322de26 ]

Original code assumed fixed and correct BTF header length. That's not
always the case, though, so fix this bug with a proper additional check.
And use actual header length instead of sizeof(struct btf_header) in
sanity checks.

Fixes: 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf")
Reported-by: Evgeny Vereshchagin <evvers@ya.ru>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211023003157.726961-2-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/btf.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index c15eb14a711e5..e6f644cdc9f15 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -205,13 +205,19 @@ static int btf_parse_hdr(struct btf *btf)
 		}
 		btf_bswap_hdr(hdr);
 	} else if (hdr->magic != BTF_MAGIC) {
-		pr_debug("Invalid BTF magic:%x\n", hdr->magic);
+		pr_debug("Invalid BTF magic: %x\n", hdr->magic);
 		return -EINVAL;
 	}
 
-	meta_left = btf->raw_size - sizeof(*hdr);
+	if (btf->raw_size < hdr->hdr_len) {
+		pr_debug("BTF header len %u larger than data size %u\n",
+			 hdr->hdr_len, btf->raw_size);
+		return -EINVAL;
+	}
+
+	meta_left = btf->raw_size - hdr->hdr_len;
 	if (meta_left < (long long)hdr->str_off + hdr->str_len) {
-		pr_debug("Invalid BTF total size:%u\n", btf->raw_size);
+		pr_debug("Invalid BTF total size: %u\n", btf->raw_size);
 		return -EINVAL;
 	}
 
-- 
GitLab


From a729eb55b3c7db244d6cc5a33739f25faf9b5c92 Mon Sep 17 00:00:00 2001
From: David Hildenbrand <david@redhat.com>
Date: Thu, 9 Sep 2021 18:22:41 +0200
Subject: [PATCH 1278/4878] s390/gmap: don't unconditionally call
 pte_unmap_unlock() in __gmap_zap()

[ Upstream commit b159f94c86b43cf7e73e654bc527255b1f4eafc4 ]

... otherwise we will try unlocking a spinlock that was never locked via a
garbage pointer.

At the time we reach this code path, we usually successfully looked up
a PGSTE already; however, evil user space could have manipulated the VMA
layout in the meantime and triggered removal of the page table.

Fixes: 1e133ab296f3 ("s390/mm: split arch/s390/mm/pgtable.c")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20210909162248.14969-3-david@redhat.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/mm/gmap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index 64795d0349263..f2d19d40272cf 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -684,9 +684,10 @@ void __gmap_zap(struct gmap *gmap, unsigned long gaddr)
 		vmaddr |= gaddr & ~PMD_MASK;
 		/* Get pointer to the page table entry */
 		ptep = get_locked_pte(gmap->mm, vmaddr, &ptl);
-		if (likely(ptep))
+		if (likely(ptep)) {
 			ptep_zap_unused(gmap->mm, vmaddr, ptep, 0);
-		pte_unmap_unlock(ptep, ptl);
+			pte_unmap_unlock(ptep, ptl);
+		}
 	}
 }
 EXPORT_SYMBOL_GPL(__gmap_zap);
-- 
GitLab


From 759f27cfa344313149e76c662682639f7c5fdf36 Mon Sep 17 00:00:00 2001
From: Claudio Imbrenda <imbrenda@linux.ibm.com>
Date: Mon, 20 Sep 2021 15:24:50 +0200
Subject: [PATCH 1279/4878] KVM: s390: pv: avoid double free of sida page

[ Upstream commit d4074324b07a94a1fca476d452dfbb3a4e7bf656 ]

If kvm_s390_pv_destroy_cpu is called more than once, we risk calling
free_page on a random page, since the sidad field is aliased with the
gbea, which is not guaranteed to be zero.

This can happen, for example, if userspace calls the KVM_PV_DISABLE
IOCTL, and it fails, and then userspace calls the same IOCTL again.
This scenario is only possible if KVM has some serious bug or if the
hardware is broken.

The solution is to simply return successfully immediately if the vCPU
was already non secure.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Fixes: 19e1227768863a1469797c13ef8fea1af7beac2c ("KVM: S390: protvirt: Introduce instruction data area bounce buffer")
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20210920132502.36111-3-imbrenda@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kvm/pv.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c
index f5847f9dec7c9..74265304dd9cd 100644
--- a/arch/s390/kvm/pv.c
+++ b/arch/s390/kvm/pv.c
@@ -16,18 +16,17 @@
 
 int kvm_s390_pv_destroy_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc)
 {
-	int cc = 0;
+	int cc;
 
-	if (kvm_s390_pv_cpu_get_handle(vcpu)) {
-		cc = uv_cmd_nodata(kvm_s390_pv_cpu_get_handle(vcpu),
-				   UVC_CMD_DESTROY_SEC_CPU, rc, rrc);
+	if (!kvm_s390_pv_cpu_get_handle(vcpu))
+		return 0;
+
+	cc = uv_cmd_nodata(kvm_s390_pv_cpu_get_handle(vcpu), UVC_CMD_DESTROY_SEC_CPU, rc, rrc);
+
+	KVM_UV_EVENT(vcpu->kvm, 3, "PROTVIRT DESTROY VCPU %d: rc %x rrc %x",
+		     vcpu->vcpu_id, *rc, *rrc);
+	WARN_ONCE(cc, "protvirt destroy cpu failed rc %x rrc %x", *rc, *rrc);
 
-		KVM_UV_EVENT(vcpu->kvm, 3,
-			     "PROTVIRT DESTROY VCPU %d: rc %x rrc %x",
-			     vcpu->vcpu_id, *rc, *rrc);
-		WARN_ONCE(cc, "protvirt destroy cpu failed rc %x rrc %x",
-			  *rc, *rrc);
-	}
 	/* Intended memory leak for something that should never happen. */
 	if (!cc)
 		free_pages(vcpu->arch.pv.stor_base,
-- 
GitLab


From 29a1cc3b50113b78931627676071744f7d614766 Mon Sep 17 00:00:00 2001
From: Claudio Imbrenda <imbrenda@linux.ibm.com>
Date: Mon, 20 Sep 2021 15:24:51 +0200
Subject: [PATCH 1280/4878] KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm

[ Upstream commit 1e2aa46de526a5adafe580bca4c25856bb06f09e ]

When the system is heavily overcommitted, kvm_s390_pv_init_vm might
generate stall notifications.

Fix this by using uv_call_sched instead of just uv_call. This is ok because
we are not holding spinlocks.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Fixes: 214d9bbcd3a672 ("s390/mm: provide memory management functions for protected KVM guests")
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Message-Id: <20210920132502.36111-4-imbrenda@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kvm/pv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kvm/pv.c b/arch/s390/kvm/pv.c
index 74265304dd9cd..8228878872228 100644
--- a/arch/s390/kvm/pv.c
+++ b/arch/s390/kvm/pv.c
@@ -190,7 +190,7 @@ int kvm_s390_pv_init_vm(struct kvm *kvm, u16 *rc, u16 *rrc)
 	uvcb.conf_base_stor_origin = (u64)kvm->arch.pv.stor_base;
 	uvcb.conf_virt_stor_origin = (u64)kvm->arch.pv.stor_var;
 
-	cc = uv_call(0, (u64)&uvcb);
+	cc = uv_call_sched(0, (u64)&uvcb);
 	*rc = uvcb.header.rc;
 	*rrc = uvcb.header.rrc;
 	KVM_UV_EVENT(kvm, 3, "PROTVIRT CREATE VM: handle %llx len %llx rc %x rrc %x",
-- 
GitLab


From 43b4860b58f3cbfdc68bf8e58e9ac9e582bdfc6c Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Wed, 20 Oct 2021 17:25:22 +0100
Subject: [PATCH 1281/4878] irq: mips: avoid nested irq_enter()

[ Upstream commit c65b52d02f6c1a06ddb20cba175ad49eccd6410d ]

As bcm6345_l1_irq_handle() is a chained irqchip handler, it will be
invoked within the context of the root irqchip handler, which must have
entered IRQ context already.

When bcm6345_l1_irq_handle() calls arch/mips's do_IRQ() , this will nest
another call to irq_enter(), and the resulting nested increment to
`rcu_data.dynticks_nmi_nesting` will cause rcu_is_cpu_rrupt_from_idle()
to fail to identify wakeups from idle, resulting in failure to preempt,
and RCU stalls.

Chained irqchip handlers must invoke IRQ handlers by way of thee core
irqchip code, i.e. generic_handle_irq() or generic_handle_domain_irq()
and should not call do_IRQ(), which is intended only for root irqchip
handlers.

Fix bcm6345_l1_irq_handle() by calling generic_handle_irq() directly.

Fixes: c7c42ec2baa1de7a ("irqchips/bmips: Add bcm6345-l1 interrupt controller")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-bcm6345-l1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c
index e3483789f4df3..1bd0621c4ce2a 100644
--- a/drivers/irqchip/irq-bcm6345-l1.c
+++ b/drivers/irqchip/irq-bcm6345-l1.c
@@ -140,7 +140,7 @@ static void bcm6345_l1_irq_handle(struct irq_desc *desc)
 		for_each_set_bit(hwirq, &pending, IRQS_PER_WORD) {
 			irq = irq_linear_revmap(intc->domain, base + hwirq);
 			if (irq)
-				do_IRQ(irq);
+				generic_handle_irq(irq);
 			else
 				spurious_interrupt();
 		}
-- 
GitLab


From ff1a0f71cc77ab431e5b7f8bc4bc6271931684f6 Mon Sep 17 00:00:00 2001
From: Hao Wu <hao.wu@rubrik.com>
Date: Wed, 8 Sep 2021 02:26:06 -0700
Subject: [PATCH 1282/4878] tpm: fix Atmel TPM crash caused by too frequent
 queries

[ Upstream commit 79ca6f74dae067681a779fd573c2eb59649989bc ]

The Atmel TPM 1.2 chips crash with error
`tpm_try_transmit: send(): error -62` since kernel 4.14.
It is observed from the kernel log after running `tpm_sealdata -z`.
The error thrown from the command is as follows
```
$ tpm_sealdata -z
Tspi_Key_LoadKey failed: 0x00001087 - layer=tddl,
code=0087 (135), I/O error
```

The issue was reproduced with the following Atmel TPM chip:
```
$ tpm_version
T0  TPM 1.2 Version Info:
  Chip Version:        1.2.66.1
  Spec Level:          2
  Errata Revision:     3
  TPM Vendor ID:       ATML
  TPM Version:         01010000
  Manufacturer Info:   41544d4c
```

The root cause of the issue is due to the TPM calls to msleep()
were replaced with usleep_range() [1], which reduces
the actual timeout. Via experiments, it is observed that
the original msleep(5) actually sleeps for 15ms.
Because of a known timeout issue in Atmel TPM 1.2 chip,
the shorter timeout than 15ms can cause the error described above.

A few further changes in kernel 4.16 [2] and 4.18 [3, 4] further
reduced the timeout to less than 1ms. With experiments,
the problematic timeout in the latest kernel is the one
for `wait_for_tpm_stat`.

To fix it, the patch reverts the timeout of `wait_for_tpm_stat`
to 15ms for all Atmel TPM 1.2 chips, but leave it untouched
for Ateml TPM 2.0 chip, and chips from other vendors.
As explained above, the chosen 15ms timeout is
the actual timeout before this issue introduced,
thus the old value is used here.
Particularly, TPM_ATML_TIMEOUT_WAIT_STAT_MIN is set to 14700us,
TPM_ATML_TIMEOUT_WAIT_STAT_MIN is set to 15000us according to
the existing TPM_TIMEOUT_RANGE_US (300us).
The fixed has been tested in the system with the affected Atmel chip
with no issues observed after boot up.

References:
[1] 9f3fc7bcddcb tpm: replace msleep() with usleep_range() in TPM
1.2/2.0 generic drivers
[2] cf151a9a44d5 tpm: reduce tpm polling delay in tpm_tis_core
[3] 59f5a6b07f64 tpm: reduce poll sleep time in tpm_transmit()
[4] 424eaf910c32 tpm: reduce polling time to usecs for even finer
granularity

Fixes: 9f3fc7bcddcb ("tpm: replace msleep() with usleep_range() in TPM 1.2/2.0 generic drivers")
Link: https://patchwork.kernel.org/project/linux-integrity/patch/20200926223150.109645-1-hao.wu@rubrik.com/
Signed-off-by: Hao Wu <hao.wu@rubrik.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/tpm/tpm_tis_core.c | 26 ++++++++++++++++++--------
 drivers/char/tpm/tpm_tis_core.h |  4 ++++
 include/linux/tpm.h             |  1 +
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 69579efb247b3..b2659a4c40168 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -48,6 +48,7 @@ static int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask,
 		unsigned long timeout, wait_queue_head_t *queue,
 		bool check_cancel)
 {
+	struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
 	unsigned long stop;
 	long rc;
 	u8 status;
@@ -80,8 +81,8 @@ again:
 		}
 	} else {
 		do {
-			usleep_range(TPM_TIMEOUT_USECS_MIN,
-				     TPM_TIMEOUT_USECS_MAX);
+			usleep_range(priv->timeout_min,
+				     priv->timeout_max);
 			status = chip->ops->status(chip);
 			if ((status & mask) == mask)
 				return 0;
@@ -945,7 +946,22 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	chip->timeout_b = msecs_to_jiffies(TIS_TIMEOUT_B_MAX);
 	chip->timeout_c = msecs_to_jiffies(TIS_TIMEOUT_C_MAX);
 	chip->timeout_d = msecs_to_jiffies(TIS_TIMEOUT_D_MAX);
+	priv->timeout_min = TPM_TIMEOUT_USECS_MIN;
+	priv->timeout_max = TPM_TIMEOUT_USECS_MAX;
 	priv->phy_ops = phy_ops;
+
+	rc = tpm_tis_read32(priv, TPM_DID_VID(0), &vendor);
+	if (rc < 0)
+		goto out_err;
+
+	priv->manufacturer_id = vendor;
+
+	if (priv->manufacturer_id == TPM_VID_ATML &&
+		!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
+		priv->timeout_min = TIS_TIMEOUT_MIN_ATML;
+		priv->timeout_max = TIS_TIMEOUT_MAX_ATML;
+	}
+
 	dev_set_drvdata(&chip->dev, priv);
 
 	if (is_bsw()) {
@@ -988,12 +1004,6 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	if (rc)
 		goto out_err;
 
-	rc = tpm_tis_read32(priv, TPM_DID_VID(0), &vendor);
-	if (rc < 0)
-		goto out_err;
-
-	priv->manufacturer_id = vendor;
-
 	rc = tpm_tis_read8(priv, TPM_RID(0), &rid);
 	if (rc < 0)
 		goto out_err;
diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index b2a3c6c72882d..3be24f221e32a 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -54,6 +54,8 @@ enum tis_defaults {
 	TIS_MEM_LEN = 0x5000,
 	TIS_SHORT_TIMEOUT = 750,	/* ms */
 	TIS_LONG_TIMEOUT = 2000,	/* 2 sec */
+	TIS_TIMEOUT_MIN_ATML = 14700,	/* usecs */
+	TIS_TIMEOUT_MAX_ATML = 15000,	/* usecs */
 };
 
 /* Some timeout values are needed before it is known whether the chip is
@@ -98,6 +100,8 @@ struct tpm_tis_data {
 	wait_queue_head_t read_queue;
 	const struct tpm_tis_phy_ops *phy_ops;
 	unsigned short rng_quality;
+	unsigned int timeout_min; /* usecs */
+	unsigned int timeout_max; /* usecs */
 };
 
 struct tpm_tis_phy_ops {
diff --git a/include/linux/tpm.h b/include/linux/tpm.h
index 804a3f69bbd93..95c3069823f9b 100644
--- a/include/linux/tpm.h
+++ b/include/linux/tpm.h
@@ -262,6 +262,7 @@ enum tpm2_cc_attrs {
 #define TPM_VID_INTEL    0x8086
 #define TPM_VID_WINBOND  0x1050
 #define TPM_VID_STM      0x104A
+#define TPM_VID_ATML     0x1114
 
 enum tpm_chip_flags {
 	TPM_CHIP_FLAG_TPM2		= BIT(1),
-- 
GitLab


From 227efdda51b4eddd10a0a5f29c0dae3eecfd265d Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Fri, 24 Sep 2021 15:41:11 +0100
Subject: [PATCH 1283/4878] tpm_tis_spi: Add missing SPI ID

[ Upstream commit 7eba41fe8c7bb01ff3d4b757bd622375792bc720 ]

In commit c46ed2281bbe ("tpm_tis_spi: add missing SPI device ID entries")
we added SPI IDs for all the DT aliases to handle the fact that we always
use SPI modaliases to load modules even when probed via DT however the
mentioned commit missed that the SPI and OF device ID entries did not
match and were different and so DT nodes with compatible
"tcg,tpm_tis-spi" will not match.  Add an extra ID for tpm_tis-spi
rather than just fix the existing one since what's currently there is
going to be better for anyone actually using SPI IDs to instantiate.

Fixes: c46ed2281bbe ("tpm_tis_spi: add missing SPI device ID entries")
Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/tpm/tpm_tis_spi_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/tpm/tpm_tis_spi_main.c b/drivers/char/tpm/tpm_tis_spi_main.c
index de4209003a448..d64bea3298a29 100644
--- a/drivers/char/tpm/tpm_tis_spi_main.c
+++ b/drivers/char/tpm/tpm_tis_spi_main.c
@@ -263,6 +263,7 @@ static const struct spi_device_id tpm_tis_spi_id[] = {
 	{ "st33htpm-spi", (unsigned long)tpm_tis_spi_probe },
 	{ "slb9670", (unsigned long)tpm_tis_spi_probe },
 	{ "tpm_tis_spi", (unsigned long)tpm_tis_spi_probe },
+	{ "tpm_tis-spi", (unsigned long)tpm_tis_spi_probe },
 	{ "cr50", (unsigned long)cr50_spi_probe },
 	{}
 };
-- 
GitLab


From 3925134eff295ff12b2ca0ebd874eb058df5f21b Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Tue, 26 Oct 2021 03:08:26 +0200
Subject: [PATCH 1284/4878] libbpf: Fix endianness detection in
 BPF_CORE_READ_BITFIELD_PROBED()

[ Upstream commit 45f2bebc8079788f62f22d9e8b2819afb1789d7b ]

__BYTE_ORDER is supposed to be defined by a libc, and __BYTE_ORDER__ -
by a compiler. bpf_core_read.h checks __BYTE_ORDER == __LITTLE_ENDIAN,
which is true if neither are defined, leading to incorrect behavior on
big-endian hosts if libc headers are not included, which is often the
case.

Fixes: ee26dade0e3b ("libbpf: Add support for relocatable bitfields")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211026010831.748682-2-iii@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/bpf_core_read.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/bpf/bpf_core_read.h b/tools/lib/bpf/bpf_core_read.h
index 4538ed762a209..f05cfc082915d 100644
--- a/tools/lib/bpf/bpf_core_read.h
+++ b/tools/lib/bpf/bpf_core_read.h
@@ -40,7 +40,7 @@ enum bpf_enum_value_kind {
 #define __CORE_RELO(src, field, info)					      \
 	__builtin_preserve_field_info((src)->field, BPF_FIELD_##info)
 
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define __CORE_BITFIELD_PROBE_READ(dst, src, fld)			      \
 	bpf_probe_read_kernel(						      \
 			(void *)dst,				      \
-- 
GitLab


From 5b7b4afead622a8ee80eb820d7150f02d7a7628f Mon Sep 17 00:00:00 2001
From: Jon Maxwell <jmaxwell37@gmail.com>
Date: Mon, 25 Oct 2021 10:59:03 +1100
Subject: [PATCH 1285/4878] tcp: don't free a FIN sk_buff in
 tcp_remove_empty_skb()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit cf12e6f9124629b18a6182deefc0315f0a73a199 ]

v1: Implement a more general statement as recommended by Eric Dumazet. The
sequence number will be advanced, so this check will fix the FIN case and
other cases.

A customer reported sockets stuck in the CLOSING state. A Vmcore revealed that
the write_queue was not empty as determined by tcp_write_queue_empty() but the
sk_buff containing the FIN flag had been freed and the socket was zombied in
that state. Corresponding pcaps show no FIN from the Linux kernel on the wire.

Some instrumentation was added to the kernel and it was found that there is a
timing window where tcp_sendmsg() can run after tcp_send_fin().

tcp_sendmsg() will hit an error, for example:

1269 ▹       if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN))↩
1270 ▹       ▹       goto do_error;↩

tcp_remove_empty_skb() will then free the FIN sk_buff as "skb->len == 0". The
TCP socket is now wedged in the FIN-WAIT-1 state because the FIN is never sent.

If the other side sends a FIN packet the socket will transition to CLOSING and
remain that way until the system is rebooted.

Fix this by checking for the FIN flag in the sk_buff and don't free it if that
is the case. Testing confirmed that fixed the issue.

Fixes: fdfc5c8594c2 ("tcp: remove empty skb from write queue in error cases")
Signed-off-by: Jon Maxwell <jmaxwell37@gmail.com>
Reported-by: Monir Zouaoui <Monir.Zouaoui@mail.schwarz>
Reported-by: Simon Stier <simon.stier@mail.schwarz>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 65eb0a523e3f5..e8aca226c4ae3 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -956,7 +956,7 @@ int tcp_send_mss(struct sock *sk, int *size_goal, int flags)
  */
 static void tcp_remove_empty_skb(struct sock *sk, struct sk_buff *skb)
 {
-	if (skb && !skb->len) {
+	if (skb && TCP_SKB_CB(skb)->seq == TCP_SKB_CB(skb)->end_seq) {
 		tcp_unlink_write_queue(skb, sk);
 		if (tcp_write_queue_empty(sk))
 			tcp_chrono_stop(sk, TCP_CHRONO_BUSY);
-- 
GitLab


From c3ac751944ab8ca89d8b2e33fa58920798a4400c Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Mon, 25 Oct 2021 21:56:27 +0100
Subject: [PATCH 1286/4878] spi: spi-rpc-if: Check return value of
 rpcif_sw_init()

[ Upstream commit 0b0a281ed7001d4c4f4c47bdc84680c4997761ca ]

rpcif_sw_init() can fail so make sure we check the return value
of it and on error exit rpcif_spi_probe() callback with error code.

Fixes: eb8d6d464a27 ("spi: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20211025205631.21151-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-rpc-if.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-rpc-if.c b/drivers/spi/spi-rpc-if.c
index 3579675485a5e..727d7cf0a6ad8 100644
--- a/drivers/spi/spi-rpc-if.c
+++ b/drivers/spi/spi-rpc-if.c
@@ -139,7 +139,9 @@ static int rpcif_spi_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	rpc = spi_controller_get_devdata(ctlr);
-	rpcif_sw_init(rpc, parent);
+	error = rpcif_sw_init(rpc, parent);
+	if (error)
+		return error;
 
 	platform_set_drvdata(pdev, ctlr);
 
-- 
GitLab


From 5109802499fb8416a2381d05c90cd74695377251 Mon Sep 17 00:00:00 2001
From: Tiezhu Yang <yangtiezhu@loongson.cn>
Date: Tue, 26 Oct 2021 09:51:28 +0800
Subject: [PATCH 1287/4878] samples/kretprobes: Fix return value if
 register_kretprobe() failed

[ Upstream commit f76fbbbb5061fe14824ba5807c44bd7400a6b4e1 ]

Use the actual return value instead of always -1 if register_kretprobe()
failed.

E.g. without this patch:

 # insmod samples/kprobes/kretprobe_example.ko func=no_such_func
 insmod: ERROR: could not insert module samples/kprobes/kretprobe_example.ko: Operation not permitted

With this patch:

 # insmod samples/kprobes/kretprobe_example.ko func=no_such_func
 insmod: ERROR: could not insert module samples/kprobes/kretprobe_example.ko: Unknown symbol in module

Link: https://lkml.kernel.org/r/1635213091-24387-2-git-send-email-yangtiezhu@loongson.cn

Fixes: 804defea1c02 ("Kprobes: move kprobe examples to samples/")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 samples/kprobes/kretprobe_example.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/kprobes/kretprobe_example.c b/samples/kprobes/kretprobe_example.c
index 5dc1bf3baa98b..228321ecb1616 100644
--- a/samples/kprobes/kretprobe_example.c
+++ b/samples/kprobes/kretprobe_example.c
@@ -86,7 +86,7 @@ static int __init kretprobe_init(void)
 	ret = register_kretprobe(&my_kretprobe);
 	if (ret < 0) {
 		pr_err("register_kretprobe failed, returned %d\n", ret);
-		return -1;
+		return ret;
 	}
 	pr_info("Planted return probe at %s: %p\n",
 			my_kretprobe.kp.symbol_name, my_kretprobe.kp.addr);
-- 
GitLab


From 3aa98ef8f7ad7869e4e4afb290aa713bc5380bac Mon Sep 17 00:00:00 2001
From: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Date: Fri, 22 Oct 2021 17:26:48 +0200
Subject: [PATCH 1288/4878] KVM: s390: Fix handle_sske page fault handling

[ Upstream commit 85f517b29418158d3e6e90c3f0fc01b306d2f1a1 ]

If handle_sske cannot set the storage key, because there is no
page table entry or no present large page entry, it calls
fixup_user_fault.
However, currently, if the call succeeds, handle_sske returns
-EAGAIN, without having set the storage key.
Instead, retry by continue'ing the loop without incrementing the
address.
The same issue in handle_pfmf was fixed by
a11bdb1a6b78 ("KVM: s390: Fix pfmf and conditional skey emulation").

Fixes: bd096f644319 ("KVM: s390: Add skey emulation fault handling")
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20211022152648.26536-1-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kvm/priv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index cd74989ce0b02..3b1a498e58d25 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -397,6 +397,8 @@ static int handle_sske(struct kvm_vcpu *vcpu)
 		mmap_read_unlock(current->mm);
 		if (rc == -EFAULT)
 			return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+		if (rc == -EAGAIN)
+			continue;
 		if (rc < 0)
 			return rc;
 		start += PAGE_SIZE;
-- 
GitLab


From 975c15a19bbc9c1511c4004109fe30721cf8c8ec Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Wed, 20 Oct 2021 20:03:44 +0800
Subject: [PATCH 1289/4878] libertas_tf: Fix possible memory leak in probe and
 disconnect

[ Upstream commit d549107305b4634c81223a853701c06bcf657bc3 ]

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff88810a2ddc00 (size 512):
  comm "kworker/6:1", pid 176, jiffies 4295009893 (age 757.220s)
  hex dump (first 32 bytes):
    00 50 05 18 81 88 ff ff 00 00 00 00 00 00 00 00  .P..............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8167939c>] slab_post_alloc_hook+0x9c/0x490
    [<ffffffff8167f627>] kmem_cache_alloc_trace+0x1f7/0x470
    [<ffffffffa02a1530>] if_usb_probe+0x60/0x37c [libertas_tf_usb]
    [<ffffffffa022668a>] usb_probe_interface+0x1aa/0x3c0 [usbcore]
    [<ffffffff82b59630>] really_probe+0x190/0x480
    [<ffffffff82b59a19>] __driver_probe_device+0xf9/0x180
    [<ffffffff82b59af3>] driver_probe_device+0x53/0x130
    [<ffffffff82b5a075>] __device_attach_driver+0x105/0x130
    [<ffffffff82b55949>] bus_for_each_drv+0x129/0x190
    [<ffffffff82b593c9>] __device_attach+0x1c9/0x270
    [<ffffffff82b5a250>] device_initial_probe+0x20/0x30
    [<ffffffff82b579c2>] bus_probe_device+0x142/0x160
    [<ffffffff82b52e49>] device_add+0x829/0x1300
    [<ffffffffa02229b1>] usb_set_configuration+0xb01/0xcc0 [usbcore]
    [<ffffffffa0235c4e>] usb_generic_driver_probe+0x6e/0x90 [usbcore]
    [<ffffffffa022641f>] usb_probe_device+0x6f/0x130 [usbcore]

cardp is missing being freed in the error handling path of the probe
and the path of the disconnect, which will cause memory leak.

This patch adds the missing kfree().

Fixes: c305a19a0d0a ("libertas_tf: usb specific functions")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211020120345.2016045-2-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/libertas_tf/if_usb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
index a92916dc81a96..ecce8b56f8a28 100644
--- a/drivers/net/wireless/marvell/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
@@ -230,6 +230,7 @@ static int if_usb_probe(struct usb_interface *intf,
 
 dealloc:
 	if_usb_free(cardp);
+	kfree(cardp);
 error:
 lbtf_deb_leave(LBTF_DEB_MAIN);
 	return -ENOMEM;
@@ -254,6 +255,7 @@ static void if_usb_disconnect(struct usb_interface *intf)
 
 	/* Unlink and free urb */
 	if_usb_free(cardp);
+	kfree(cardp);
 
 	usb_set_intfdata(intf, NULL);
 	usb_put_dev(interface_to_usbdev(intf));
-- 
GitLab


From 62d12650b845669b17b6c546f8ce3bfa69bfb55f Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Wed, 20 Oct 2021 20:03:45 +0800
Subject: [PATCH 1290/4878] libertas: Fix possible memory leak in probe and
 disconnect

[ Upstream commit 9692151e2fe7a326bafe99836fd1f20a2cc3a049 ]

I got memory leak as follows when doing fault injection test:

unreferenced object 0xffff88812c7d7400 (size 512):
  comm "kworker/6:1", pid 176, jiffies 4295003332 (age 822.830s)
  hex dump (first 32 bytes):
    00 68 1e 04 81 88 ff ff 01 00 00 00 00 00 00 00  .h..............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8167939c>] slab_post_alloc_hook+0x9c/0x490
    [<ffffffff8167f627>] kmem_cache_alloc_trace+0x1f7/0x470
    [<ffffffffa02c9873>] if_usb_probe+0x63/0x446 [usb8xxx]
    [<ffffffffa022668a>] usb_probe_interface+0x1aa/0x3c0 [usbcore]
    [<ffffffff82b59630>] really_probe+0x190/0x480
    [<ffffffff82b59a19>] __driver_probe_device+0xf9/0x180
    [<ffffffff82b59af3>] driver_probe_device+0x53/0x130
    [<ffffffff82b5a075>] __device_attach_driver+0x105/0x130
    [<ffffffff82b55949>] bus_for_each_drv+0x129/0x190
    [<ffffffff82b593c9>] __device_attach+0x1c9/0x270
    [<ffffffff82b5a250>] device_initial_probe+0x20/0x30
    [<ffffffff82b579c2>] bus_probe_device+0x142/0x160
    [<ffffffff82b52e49>] device_add+0x829/0x1300
    [<ffffffffa02229b1>] usb_set_configuration+0xb01/0xcc0 [usbcore]
    [<ffffffffa0235c4e>] usb_generic_driver_probe+0x6e/0x90 [usbcore]
    [<ffffffffa022641f>] usb_probe_device+0x6f/0x130 [usbcore]

cardp is missing being freed in the error handling path of the probe
and the path of the disconnect, which will cause memory leak.

This patch adds the missing kfree().

Fixes: 876c9d3aeb98 ("[PATCH] Marvell Libertas 8388 802.11b/g USB driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211020120345.2016045-3-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/libertas/if_usb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c
index 20436a289d5cd..5d6dc1dd050d4 100644
--- a/drivers/net/wireless/marvell/libertas/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas/if_usb.c
@@ -292,6 +292,7 @@ err_add_card:
 	if_usb_reset_device(cardp);
 dealloc:
 	if_usb_free(cardp);
+	kfree(cardp);
 
 error:
 	return r;
@@ -316,6 +317,7 @@ static void if_usb_disconnect(struct usb_interface *intf)
 
 	/* Unlink and free urb */
 	if_usb_free(cardp);
+	kfree(cardp);
 
 	usb_set_intfdata(intf, NULL);
 	usb_put_dev(interface_to_usbdev(intf));
-- 
GitLab


From 3965cc2e9fddcc57e23c9bfd133bda4711ea6343 Mon Sep 17 00:00:00 2001
From: Benjamin Li <benl@squareup.com>
Date: Fri, 22 Oct 2021 17:15:28 -0700
Subject: [PATCH 1291/4878] wcn36xx: add proper DMA memory barriers in rx path

[ Upstream commit 9bfe38e064af5decba2ffce66a2958ab8b10eaa4 ]

This is essentially exactly following the dma_wmb()/dma_rmb() usage
instructions in Documentation/memory-barriers.txt.

The theoretical races here are:

1. DXE (the DMA Transfer Engine in the Wi-Fi subsystem) seeing the
dxe->ctrl & WCN36xx_DXE_CTRL_VLD write before the dxe->dst_addr_l
write, thus performing DMA into the wrong address.

2. CPU reading dxe->dst_addr_l before DXE unsets dxe->ctrl &
WCN36xx_DXE_CTRL_VLD. This should generally be harmless since DXE
doesn't write dxe->dst_addr_l (no risk of freeing the wrong skb).

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Benjamin Li <benl@squareup.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211023001528.3077822-1-benl@squareup.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/dxe.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index 70c46c327512f..cf4eb0fb28151 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -606,6 +606,10 @@ static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
 	dxe = ctl->desc;
 
 	while (!(READ_ONCE(dxe->ctrl) & WCN36xx_DXE_CTRL_VLD)) {
+		/* do not read until we own DMA descriptor */
+		dma_rmb();
+
+		/* read/modify DMA descriptor */
 		skb = ctl->skb;
 		dma_addr = dxe->dst_addr_l;
 		ret = wcn36xx_dxe_fill_skb(wcn->dev, ctl, GFP_ATOMIC);
@@ -616,9 +620,15 @@ static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
 			dma_unmap_single(wcn->dev, dma_addr, WCN36XX_PKT_SIZE,
 					DMA_FROM_DEVICE);
 			wcn36xx_rx_skb(wcn, skb);
-		} /* else keep old skb not submitted and use it for rx DMA */
+		}
+		/* else keep old skb not submitted and reuse it for rx DMA
+		 * (dropping the packet that it contained)
+		 */
 
+		/* flush descriptor changes before re-marking as valid */
+		dma_wmb();
 		dxe->ctrl = ctrl;
+
 		ctl = ctl->next;
 		dxe = ctl->desc;
 	}
-- 
GitLab


From a586453da90c2211a7f8c227568db434c67f81dd Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Mon, 25 Oct 2021 10:25:36 +0200
Subject: [PATCH 1292/4878] wcn36xx: Fix discarded frames due to wrong sequence
 number

[ Upstream commit 113f304dbc1627c6ec9d5329d839964095768980 ]

The firmware is offering features such as ARP offload, for which
firmware crafts its own (QoS)packets without waking up the host.
Point is that the sequence numbers generated by the firmware are
not in sync with the host mac80211 layer and can cause packets
such as firmware ARP reponses to be dropped by the AP (too old SN).

To fix this we need to let the firmware manages the sequence
numbers by its own (except for QoS null frames). There is a SN
counter for each QoS queue and one global/baseline counter for
Non-QoS.

Fixes: 84aff52e4f57 ("wcn36xx: Use sequence number allocated by mac80211")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1635150336-18736-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index c0f51fa13dfa1..bbd7194c82e27 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -344,8 +344,6 @@ static void wcn36xx_set_tx_pdu(struct wcn36xx_tx_bd *bd,
 		bd->pdu.mpdu_header_off;
 	bd->pdu.mpdu_len = len;
 	bd->pdu.tid = tid;
-	/* Use seq number generated by mac80211 */
-	bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_HOST;
 }
 
 static inline struct wcn36xx_vif *get_vif_by_addr(struct wcn36xx *wcn,
@@ -442,6 +440,9 @@ static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
 		tid = ieee80211_get_tid(hdr);
 		/* TID->QID is one-to-one mapping */
 		bd->queue_id = tid;
+		bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_QOS;
+	} else {
+		bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_NON_QOS;
 	}
 
 	if (info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT ||
@@ -453,6 +454,8 @@ static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
 		/* Don't use a regular queue for null packet (no ampdu) */
 		bd->queue_id = WCN36XX_TX_U_WQ_ID;
 		bd->bd_rate = WCN36XX_BD_RATE_CTRL;
+		if (ieee80211_is_qos_nullfunc(hdr->frame_control))
+			bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_HOST;
 	}
 
 	if (bcast) {
@@ -512,6 +515,8 @@ static void wcn36xx_set_tx_mgmt(struct wcn36xx_tx_bd *bd,
 		bd->queue_id = WCN36XX_TX_U_WQ_ID;
 	*vif_priv = __vif_priv;
 
+	bd->pdu.bd_ssn = WCN36XX_TXBD_SSN_FILL_DPU_NON_QOS;
+
 	wcn36xx_set_tx_pdu(bd,
 			   ieee80211_is_data_qos(hdr->frame_control) ?
 			   sizeof(struct ieee80211_qos_hdr) :
-- 
GitLab


From ae1f588ca1b0c9e2f82c14479e408759a786f701 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 27 Oct 2021 13:26:19 -0400
Subject: [PATCH 1293/4878] drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 403475be6d8b122c3e6b8a47e075926d7299e5ef ]

The DMA mask on SI parts is 40 bits not 44.  Copy
paste typo.

Fixes: 244511f386ccb9 ("drm/amdgpu: simplify and cleanup setting the dma mask")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1762
Acked-by: Christian König <christian.koenig@amd.com>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index 95a9117e95640..861d0cc45fc10 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -842,12 +842,12 @@ static int gmc_v6_0_sw_init(void *handle)
 
 	adev->gmc.mc_mask = 0xffffffffffULL;
 
-	r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
+	r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
 	if (r) {
 		dev_warn(adev->dev, "No suitable DMA available.\n");
 		return r;
 	}
-	adev->need_swiotlb = drm_need_swiotlb(44);
+	adev->need_swiotlb = drm_need_swiotlb(40);
 
 	r = gmc_v6_0_init_microcode(adev);
 	if (r) {
-- 
GitLab


From 2989a396b891911cafd42465bd35622f5e797013 Mon Sep 17 00:00:00 2001
From: Lorenz Bauer <lmb@cloudflare.com>
Date: Wed, 3 Mar 2021 10:18:14 +0000
Subject: [PATCH 1294/4878] selftests: bpf: Convert sk_lookup ctx access tests
 to PROG_TEST_RUN

[ Upstream commit 509b2937bce90089fd2785db9f27951a3d850c34 ]

Convert the selftests for sk_lookup narrow context access to use
PROG_TEST_RUN instead of creating actual sockets. This ensures that
ctx is populated correctly when using PROG_TEST_RUN.

Assert concrete values since we now control remote_ip and remote_port.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210303101816.36774-4-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/bpf/prog_tests/sk_lookup.c      | 83 +++++++++++++++----
 .../selftests/bpf/progs/test_sk_lookup.c      | 62 +++++++++-----
 2 files changed, 109 insertions(+), 36 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
index 9ff0412e1fd38..45c82db3c58c5 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -241,6 +241,48 @@ fail:
 	return -1;
 }
 
+static __u64 socket_cookie(int fd)
+{
+	__u64 cookie;
+	socklen_t cookie_len = sizeof(cookie);
+
+	if (CHECK(getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len) < 0,
+		  "getsockopt(SO_COOKIE)", "%s\n", strerror(errno)))
+		return 0;
+	return cookie;
+}
+
+static int fill_sk_lookup_ctx(struct bpf_sk_lookup *ctx, const char *local_ip, __u16 local_port,
+			      const char *remote_ip, __u16 remote_port)
+{
+	void *local, *remote;
+	int err;
+
+	memset(ctx, 0, sizeof(*ctx));
+	ctx->local_port = local_port;
+	ctx->remote_port = htons(remote_port);
+
+	if (is_ipv6(local_ip)) {
+		ctx->family = AF_INET6;
+		local = &ctx->local_ip6[0];
+		remote = &ctx->remote_ip6[0];
+	} else {
+		ctx->family = AF_INET;
+		local = &ctx->local_ip4;
+		remote = &ctx->remote_ip4;
+	}
+
+	err = inet_pton(ctx->family, local_ip, local);
+	if (CHECK(err != 1, "inet_pton", "local_ip failed\n"))
+		return 1;
+
+	err = inet_pton(ctx->family, remote_ip, remote);
+	if (CHECK(err != 1, "inet_pton", "remote_ip failed\n"))
+		return 1;
+
+	return 0;
+}
+
 static int send_byte(int fd)
 {
 	ssize_t n;
@@ -1009,18 +1051,27 @@ static void test_drop_on_reuseport(struct test_sk_lookup *skel)
 
 static void run_sk_assign(struct test_sk_lookup *skel,
 			  struct bpf_program *lookup_prog,
-			  const char *listen_ip, const char *connect_ip)
+			  const char *remote_ip, const char *local_ip)
 {
-	int client_fd, peer_fd, server_fds[MAX_SERVERS] = { -1 };
-	struct bpf_link *lookup_link;
+	int server_fds[MAX_SERVERS] = { -1 };
+	struct bpf_sk_lookup ctx;
+	__u64 server_cookie;
 	int i, err;
 
-	lookup_link = attach_lookup_prog(lookup_prog);
-	if (!lookup_link)
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.ctx_in = &ctx,
+		.ctx_size_in = sizeof(ctx),
+		.ctx_out = &ctx,
+		.ctx_size_out = sizeof(ctx),
+	);
+
+	if (fill_sk_lookup_ctx(&ctx, local_ip, EXT_PORT, remote_ip, INT_PORT))
 		return;
 
+	ctx.protocol = IPPROTO_TCP;
+
 	for (i = 0; i < ARRAY_SIZE(server_fds); i++) {
-		server_fds[i] = make_server(SOCK_STREAM, listen_ip, 0, NULL);
+		server_fds[i] = make_server(SOCK_STREAM, local_ip, 0, NULL);
 		if (server_fds[i] < 0)
 			goto close_servers;
 
@@ -1030,23 +1081,25 @@ static void run_sk_assign(struct test_sk_lookup *skel,
 			goto close_servers;
 	}
 
-	client_fd = make_client(SOCK_STREAM, connect_ip, EXT_PORT);
-	if (client_fd < 0)
+	server_cookie = socket_cookie(server_fds[SERVER_B]);
+	if (!server_cookie)
+		return;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(lookup_prog), &opts);
+	if (CHECK(err, "test_run", "failed with error %d\n", errno))
+		goto close_servers;
+
+	if (CHECK(ctx.cookie == 0, "ctx.cookie", "no socket selected\n"))
 		goto close_servers;
 
-	peer_fd = accept(server_fds[SERVER_B], NULL, NULL);
-	if (CHECK(peer_fd < 0, "accept", "failed\n"))
-		goto close_client;
+	CHECK(ctx.cookie != server_cookie, "ctx.cookie",
+	      "selected sk %llu instead of %llu\n", ctx.cookie, server_cookie);
 
-	close(peer_fd);
-close_client:
-	close(client_fd);
 close_servers:
 	for (i = 0; i < ARRAY_SIZE(server_fds); i++) {
 		if (server_fds[i] != -1)
 			close(server_fds[i]);
 	}
-	bpf_link__destroy(lookup_link);
 }
 
 static void run_sk_assign_v4(struct test_sk_lookup *skel,
diff --git a/tools/testing/selftests/bpf/progs/test_sk_lookup.c b/tools/testing/selftests/bpf/progs/test_sk_lookup.c
index 1032b292af5b7..ac6f7f205e25d 100644
--- a/tools/testing/selftests/bpf/progs/test_sk_lookup.c
+++ b/tools/testing/selftests/bpf/progs/test_sk_lookup.c
@@ -64,6 +64,10 @@ static const int PROG_DONE = 1;
 static const __u32 KEY_SERVER_A = SERVER_A;
 static const __u32 KEY_SERVER_B = SERVER_B;
 
+static const __u16 SRC_PORT = bpf_htons(8008);
+static const __u32 SRC_IP4 = IP4(127, 0, 0, 2);
+static const __u32 SRC_IP6[] = IP6(0xfd000000, 0x0, 0x0, 0x00000002);
+
 static const __u16 DST_PORT = 7007; /* Host byte order */
 static const __u32 DST_IP4 = IP4(127, 0, 0, 1);
 static const __u32 DST_IP6[] = IP6(0xfd000000, 0x0, 0x0, 0x00000001);
@@ -398,11 +402,12 @@ int ctx_narrow_access(struct bpf_sk_lookup *ctx)
 	if (LSW(ctx->protocol, 0) != IPPROTO_TCP)
 		return SK_DROP;
 
-	/* Narrow loads from remote_port field. Expect non-0 value. */
-	if (LSB(ctx->remote_port, 0) == 0 && LSB(ctx->remote_port, 1) == 0 &&
-	    LSB(ctx->remote_port, 2) == 0 && LSB(ctx->remote_port, 3) == 0)
+	/* Narrow loads from remote_port field. Expect SRC_PORT. */
+	if (LSB(ctx->remote_port, 0) != ((SRC_PORT >> 0) & 0xff) ||
+	    LSB(ctx->remote_port, 1) != ((SRC_PORT >> 8) & 0xff) ||
+	    LSB(ctx->remote_port, 2) != 0 || LSB(ctx->remote_port, 3) != 0)
 		return SK_DROP;
-	if (LSW(ctx->remote_port, 0) == 0)
+	if (LSW(ctx->remote_port, 0) != SRC_PORT)
 		return SK_DROP;
 
 	/* Narrow loads from local_port field. Expect DST_PORT. */
@@ -415,11 +420,14 @@ int ctx_narrow_access(struct bpf_sk_lookup *ctx)
 
 	/* Narrow loads from IPv4 fields */
 	if (v4) {
-		/* Expect non-0.0.0.0 in remote_ip4 */
-		if (LSB(ctx->remote_ip4, 0) == 0 && LSB(ctx->remote_ip4, 1) == 0 &&
-		    LSB(ctx->remote_ip4, 2) == 0 && LSB(ctx->remote_ip4, 3) == 0)
+		/* Expect SRC_IP4 in remote_ip4 */
+		if (LSB(ctx->remote_ip4, 0) != ((SRC_IP4 >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip4, 1) != ((SRC_IP4 >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip4, 2) != ((SRC_IP4 >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip4, 3) != ((SRC_IP4 >> 24) & 0xff))
 			return SK_DROP;
-		if (LSW(ctx->remote_ip4, 0) == 0 && LSW(ctx->remote_ip4, 1) == 0)
+		if (LSW(ctx->remote_ip4, 0) != ((SRC_IP4 >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip4, 1) != ((SRC_IP4 >> 16) & 0xffff))
 			return SK_DROP;
 
 		/* Expect DST_IP4 in local_ip4 */
@@ -448,20 +456,32 @@ int ctx_narrow_access(struct bpf_sk_lookup *ctx)
 
 	/* Narrow loads from IPv6 fields */
 	if (!v4) {
-		/* Expect non-:: IP in remote_ip6 */
-		if (LSB(ctx->remote_ip6[0], 0) == 0 && LSB(ctx->remote_ip6[0], 1) == 0 &&
-		    LSB(ctx->remote_ip6[0], 2) == 0 && LSB(ctx->remote_ip6[0], 3) == 0 &&
-		    LSB(ctx->remote_ip6[1], 0) == 0 && LSB(ctx->remote_ip6[1], 1) == 0 &&
-		    LSB(ctx->remote_ip6[1], 2) == 0 && LSB(ctx->remote_ip6[1], 3) == 0 &&
-		    LSB(ctx->remote_ip6[2], 0) == 0 && LSB(ctx->remote_ip6[2], 1) == 0 &&
-		    LSB(ctx->remote_ip6[2], 2) == 0 && LSB(ctx->remote_ip6[2], 3) == 0 &&
-		    LSB(ctx->remote_ip6[3], 0) == 0 && LSB(ctx->remote_ip6[3], 1) == 0 &&
-		    LSB(ctx->remote_ip6[3], 2) == 0 && LSB(ctx->remote_ip6[3], 3) == 0)
+		/* Expect SRC_IP6 in remote_ip6 */
+		if (LSB(ctx->remote_ip6[0], 0) != ((SRC_IP6[0] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[0], 1) != ((SRC_IP6[0] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[0], 2) != ((SRC_IP6[0] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[0], 3) != ((SRC_IP6[0] >> 24) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 0) != ((SRC_IP6[1] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 1) != ((SRC_IP6[1] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 2) != ((SRC_IP6[1] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 3) != ((SRC_IP6[1] >> 24) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 0) != ((SRC_IP6[2] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 1) != ((SRC_IP6[2] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 2) != ((SRC_IP6[2] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 3) != ((SRC_IP6[2] >> 24) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 0) != ((SRC_IP6[3] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 1) != ((SRC_IP6[3] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 2) != ((SRC_IP6[3] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 3) != ((SRC_IP6[3] >> 24) & 0xff))
 			return SK_DROP;
-		if (LSW(ctx->remote_ip6[0], 0) == 0 && LSW(ctx->remote_ip6[0], 1) == 0 &&
-		    LSW(ctx->remote_ip6[1], 0) == 0 && LSW(ctx->remote_ip6[1], 1) == 0 &&
-		    LSW(ctx->remote_ip6[2], 0) == 0 && LSW(ctx->remote_ip6[2], 1) == 0 &&
-		    LSW(ctx->remote_ip6[3], 0) == 0 && LSW(ctx->remote_ip6[3], 1) == 0)
+		if (LSW(ctx->remote_ip6[0], 0) != ((SRC_IP6[0] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[0], 1) != ((SRC_IP6[0] >> 16) & 0xffff) ||
+		    LSW(ctx->remote_ip6[1], 0) != ((SRC_IP6[1] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[1], 1) != ((SRC_IP6[1] >> 16) & 0xffff) ||
+		    LSW(ctx->remote_ip6[2], 0) != ((SRC_IP6[2] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[2], 1) != ((SRC_IP6[2] >> 16) & 0xffff) ||
+		    LSW(ctx->remote_ip6[3], 0) != ((SRC_IP6[3] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[3], 1) != ((SRC_IP6[3] >> 16) & 0xffff))
 			return SK_DROP;
 		/* Expect DST_IP6 in local_ip6 */
 		if (LSB(ctx->local_ip6[0], 0) != ((DST_IP6[0] >> 0) & 0xff) ||
-- 
GitLab


From b17f424f88bad19282fc607ac654e88b51d03796 Mon Sep 17 00:00:00 2001
From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Date: Thu, 28 Oct 2021 12:05:00 +0530
Subject: [PATCH 1295/4878] selftests/bpf: Fix fd cleanup in sk_lookup test

[ Upstream commit c3fc706e94f5653def2783ffcd809a38676b7551 ]

Similar to the fix in commit:
e31eec77e4ab ("bpf: selftests: Fix fd cleanup in get_branch_snapshot")

We use designated initializer to set fds to -1 without breaking on
future changes to MAX_SERVER constant denoting the array size.

The particular close(0) occurs on non-reuseport tests, so it can be seen
with -n 115/{2,3} but not 115/4. This can cause problems with future
tests if they depend on BTF fd never being acquired as fd 0, breaking
internal libbpf assumptions.

Fixes: 0ab5539f8584 ("selftests/bpf: Tests for BPF_SK_LOOKUP attach point")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211028063501.2239335-8-memxor@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/prog_tests/sk_lookup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
index 45c82db3c58c5..b4c9f4a96ae4d 100644
--- a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -598,7 +598,7 @@ close:
 
 static void run_lookup_prog(const struct test *t)
 {
-	int server_fds[MAX_SERVERS] = { -1 };
+	int server_fds[] = { [0 ... MAX_SERVERS - 1] = -1 };
 	int client_fd, reuse_conn_fd = -1;
 	struct bpf_link *lookup_link;
 	int i, err;
@@ -1053,7 +1053,7 @@ static void run_sk_assign(struct test_sk_lookup *skel,
 			  struct bpf_program *lookup_prog,
 			  const char *remote_ip, const char *local_ip)
 {
-	int server_fds[MAX_SERVERS] = { -1 };
+	int server_fds[] = { [0 ... MAX_SERVERS - 1] = -1 };
 	struct bpf_sk_lookup ctx;
 	__u64 server_cookie;
 	int i, err;
-- 
GitLab


From 08449a5c0e56373847857cc20e2ea22a61bd6600 Mon Sep 17 00:00:00 2001
From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Date: Wed, 27 Oct 2021 15:27:27 +0530
Subject: [PATCH 1296/4878] net: amd-xgbe: Toggle PLL settings during rate
 change

[ Upstream commit daf182d360e509a494db18666799f4e85d83dda0 ]

For each rate change command submission, the FW has to do a phy
power off sequence internally. For this to happen correctly, the
PLL re-initialization control setting has to be turned off before
sending mailbox commands and re-enabled once the command submission
is complete.

Without the PLL control setting, the link up takes longer time in a
fixed phy configuration.

Fixes: 47f164deab22 ("amd-xgbe: Add PCI device support")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-common.h |  8 ++++++++
 drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c | 20 +++++++++++++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index b2cd3bdba9f89..533b8519ec352 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -1331,6 +1331,10 @@
 #define MDIO_VEND2_PMA_CDR_CONTROL	0x8056
 #endif
 
+#ifndef MDIO_VEND2_PMA_MISC_CTRL0
+#define MDIO_VEND2_PMA_MISC_CTRL0	0x8090
+#endif
+
 #ifndef MDIO_CTRL1_SPEED1G
 #define MDIO_CTRL1_SPEED1G		(MDIO_CTRL1_SPEED10G & ~BMCR_SPEED100)
 #endif
@@ -1389,6 +1393,10 @@
 #define XGBE_PMA_RX_RST_0_RESET_ON	0x10
 #define XGBE_PMA_RX_RST_0_RESET_OFF	0x00
 
+#define XGBE_PMA_PLL_CTRL_MASK		BIT(15)
+#define XGBE_PMA_PLL_CTRL_ENABLE	BIT(15)
+#define XGBE_PMA_PLL_CTRL_DISABLE	0x0000
+
 /* Bit setting and getting macros
  *  The get macro will extract the current bit field value from within
  *  the variable
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
index 18e48b3bc402b..213769054391c 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
@@ -1977,12 +1977,26 @@ static void xgbe_phy_rx_reset(struct xgbe_prv_data *pdata)
 	}
 }
 
+static void xgbe_phy_pll_ctrl(struct xgbe_prv_data *pdata, bool enable)
+{
+	XMDIO_WRITE_BITS(pdata, MDIO_MMD_PMAPMD, MDIO_VEND2_PMA_MISC_CTRL0,
+			 XGBE_PMA_PLL_CTRL_MASK,
+			 enable ? XGBE_PMA_PLL_CTRL_ENABLE
+				: XGBE_PMA_PLL_CTRL_DISABLE);
+
+	/* Wait for command to complete */
+	usleep_range(100, 200);
+}
+
 static void xgbe_phy_perform_ratechange(struct xgbe_prv_data *pdata,
 					unsigned int cmd, unsigned int sub_cmd)
 {
 	unsigned int s0 = 0;
 	unsigned int wait;
 
+	/* Disable PLL re-initialization during FW command processing */
+	xgbe_phy_pll_ctrl(pdata, false);
+
 	/* Log if a previous command did not complete */
 	if (XP_IOREAD_BITS(pdata, XP_DRIVER_INT_RO, STATUS)) {
 		netif_dbg(pdata, link, pdata->netdev,
@@ -2003,7 +2017,7 @@ static void xgbe_phy_perform_ratechange(struct xgbe_prv_data *pdata,
 	wait = XGBE_RATECHANGE_COUNT;
 	while (wait--) {
 		if (!XP_IOREAD_BITS(pdata, XP_DRIVER_INT_RO, STATUS))
-			return;
+			goto reenable_pll;
 
 		usleep_range(1000, 2000);
 	}
@@ -2013,6 +2027,10 @@ static void xgbe_phy_perform_ratechange(struct xgbe_prv_data *pdata,
 
 	/* Reset on error */
 	xgbe_phy_rx_reset(pdata);
+
+reenable_pll:
+	/* Enable PLL re-initialization */
+	xgbe_phy_pll_ctrl(pdata, true);
 }
 
 static void xgbe_phy_rrc(struct xgbe_prv_data *pdata)
-- 
GitLab


From fb41b8f5e855794f180f0f8a118abeb662436a07 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 28 Oct 2021 15:55:34 +0100
Subject: [PATCH 1297/4878] net: phylink: avoid mvneta warning when setting
 pause parameters

[ Upstream commit fd8d9731bcdfb22d28e45bce789bcb211c868c78 ]

mvneta does not support asymetric pause modes, and it flags this by the
lack of AsymPause in the supported field. When setting pause modes, we
check that pause->rx_pause == pause->tx_pause, but only when pause
autoneg is enabled. When pause autoneg is disabled, we still allow
pause->rx_pause != pause->tx_pause, which is incorrect when the MAC
does not support asymetric pause, and causes mvneta to issue a warning.

Fix this by removing the test for pause->autoneg, so we always check
that pause->rx_pause == pause->tx_pause for network devices that do not
support AsymPause.

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phylink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 025c3246f3396..899496f089d2e 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1610,7 +1610,7 @@ int phylink_ethtool_set_pauseparam(struct phylink *pl,
 		return -EOPNOTSUPP;
 
 	if (!phylink_test(pl->supported, Asym_Pause) &&
-	    !pause->autoneg && pause->rx_pause != pause->tx_pause)
+	    pause->rx_pause != pause->tx_pause)
 		return -EINVAL;
 
 	pause_state = 0;
-- 
GitLab


From 71ec65c7000425b2d7570a78ed9f42e3844169b1 Mon Sep 17 00:00:00 2001
From: Daniel Jordan <daniel.m.jordan@oracle.com>
Date: Thu, 21 Oct 2021 14:30:28 -0400
Subject: [PATCH 1298/4878] crypto: pcrypt - Delay write to padata->info

[ Upstream commit 68b6dea802cea0dbdd8bd7ccc60716b5a32a5d8a ]

These three events can race when pcrypt is used multiple times in a
template ("pcrypt(pcrypt(...))"):

  1.  [taskA] The caller makes the crypto request via crypto_aead_encrypt()
  2.  [kworkerB] padata serializes the inner pcrypt request
  3.  [kworkerC] padata serializes the outer pcrypt request

3 might finish before the call to crypto_aead_encrypt() returns in 1,
resulting in two possible issues.

First, a use-after-free of the crypto request's memory when, for
example, taskA writes to the outer pcrypt request's padata->info in
pcrypt_aead_enc() after kworkerC completes the request.

Second, the outer pcrypt request overwrites the inner pcrypt request's
return code with -EINPROGRESS, making a successful request appear to
fail.  For instance, kworkerB writes the outer pcrypt request's
padata->info in pcrypt_aead_done() and then taskA overwrites it
in pcrypt_aead_enc().

Avoid both situations by delaying the write of padata->info until after
the inner crypto request's return code is checked.  This prevents the
use-after-free by not touching the crypto request's memory after the
next-inner crypto request is made, and stops padata->info from being
overwritten.

Fixes: 5068c7a883d16 ("crypto: pcrypt - Add pcrypt crypto parallelization wrapper")
Reported-by: syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 crypto/pcrypt.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index d569c7ed6c800..9d10b846ccf73 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -78,12 +78,14 @@ static void pcrypt_aead_enc(struct padata_priv *padata)
 {
 	struct pcrypt_request *preq = pcrypt_padata_request(padata);
 	struct aead_request *req = pcrypt_request_ctx(preq);
+	int ret;
 
-	padata->info = crypto_aead_encrypt(req);
+	ret = crypto_aead_encrypt(req);
 
-	if (padata->info == -EINPROGRESS)
+	if (ret == -EINPROGRESS)
 		return;
 
+	padata->info = ret;
 	padata_do_serial(padata);
 }
 
@@ -123,12 +125,14 @@ static void pcrypt_aead_dec(struct padata_priv *padata)
 {
 	struct pcrypt_request *preq = pcrypt_padata_request(padata);
 	struct aead_request *req = pcrypt_request_ctx(preq);
+	int ret;
 
-	padata->info = crypto_aead_decrypt(req);
+	ret = crypto_aead_decrypt(req);
 
-	if (padata->info == -EINPROGRESS)
+	if (ret == -EINPROGRESS)
 		return;
 
+	padata->info = ret;
 	padata_do_serial(padata);
 }
 
-- 
GitLab


From 8f3d88139df8c59f6a5e087f12d58a1ff3f3f531 Mon Sep 17 00:00:00 2001
From: Andrea Righi <andrea.righi@canonical.com>
Date: Tue, 26 Oct 2021 16:34:09 +0200
Subject: [PATCH 1299/4878] selftests/bpf: Fix fclose/pclose mismatch in
 test_progs

[ Upstream commit f48ad69097fe79d1de13c4d8fef556d4c11c5e68 ]

Make sure to use pclose() to properly close the pipe opened by popen().

Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID")
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20211026143409.42666-1-andrea.righi@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/test_progs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index 22943b58d752a..4a13477aef9dd 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -347,7 +347,7 @@ int extract_build_id(char *build_id, size_t size)
 
 	if (getline(&line, &len, fp) == -1)
 		goto err;
-	fclose(fp);
+	pclose(fp);
 
 	if (len > size)
 		len = size;
@@ -356,7 +356,7 @@ int extract_build_id(char *build_id, size_t size)
 	free(line);
 	return 0;
 err:
-	fclose(fp);
+	pclose(fp);
 	return -1;
 }
 
-- 
GitLab


From 366235d4bebc39363ed029176873097c66049954 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Fri, 29 Oct 2021 08:51:34 -0700
Subject: [PATCH 1300/4878] udp6: allow SO_MARK ctrl msg to affect routing

[ Upstream commit 42dcfd850e514b229d616a53dec06d0f2533217c ]

Commit c6af0c227a22 ("ip: support SO_MARK cmsg")
added propagation of SO_MARK from cmsg to skb->mark.
For IPv4 and raw sockets the mark also affects route
lookup, but in case of IPv6 the flow info is
initialized before cmsg is parsed.

Fixes: c6af0c227a22 ("ip: support SO_MARK cmsg")
Reported-and-tested-by: Xintong Hu <huxintong@fb.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index bae6b51a9bd46..8a1863146f34c 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1420,7 +1420,6 @@ do_udp_sendmsg:
 	if (!fl6.flowi6_oif)
 		fl6.flowi6_oif = np->sticky_pktinfo.ipi6_ifindex;
 
-	fl6.flowi6_mark = ipc6.sockc.mark;
 	fl6.flowi6_uid = sk->sk_uid;
 
 	if (msg->msg_controllen) {
@@ -1456,6 +1455,7 @@ do_udp_sendmsg:
 	ipc6.opt = opt;
 
 	fl6.flowi6_proto = sk->sk_protocol;
+	fl6.flowi6_mark = ipc6.sockc.mark;
 	fl6.daddr = *daddr;
 	if (ipv6_addr_any(&fl6.saddr) && !ipv6_addr_any(&np->saddr))
 		fl6.saddr = np->saddr;
-- 
GitLab


From 5b3f7204197af04b8dc8adea786052e1fa97b1e8 Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Fri, 29 Oct 2021 15:03:14 -0700
Subject: [PATCH 1301/4878] ibmvnic: don't stop queue in xmit

[ Upstream commit 8878e46fcfd46b19964bd90e13b25dd94cbfc9be ]

If adapter's resetting bit is on, discard the packet but don't stop the
transmit queue - instead leave that to the reset code. With this change,
it is possible that we may get several calls to ibmvnic_xmit() that simply
discard packets and return.

But if we stop the queue here, we might end up doing so just after
__ibmvnic_open() started the queues (during a hard/soft reset) and before
the ->resetting bit was cleared. If that happens, there will be no one to
restart queue and transmissions will be blocked indefinitely.

This can cause a TIMEOUT reset and with auto priority failover enabled,
an unnecessary FAILOVER reset to less favored backing device and then a
FAILOVER back to the most favored backing device. If we hit the window
repeatedly, we can get stuck in a loop of TIMEOUT, FAILOVER, FAILOVER
resets leaving the adapter unusable for extended periods of time.

Fixes: 7f5b030830fe ("ibmvnic: Free skb's in cases of failure in transmit")
Reported-by: Abdul Haleem <abdhalee@in.ibm.com>
Reported-by: Vaishnavi Bhat <vaish123@in.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index bb8d0a0f48ee0..c470dbc03a23e 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1548,8 +1548,6 @@ static netdev_tx_t ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
 	netdev_tx_t ret = NETDEV_TX_OK;
 
 	if (test_bit(0, &adapter->resetting)) {
-		if (!netif_subqueue_stopped(netdev, skb))
-			netif_stop_subqueue(netdev, queue_num);
 		dev_kfree_skb_any(skb);
 
 		tx_send_failed++;
-- 
GitLab


From a3fdcd16b138c2f680f4949b0ed646e9d34b1eed Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Fri, 29 Oct 2021 15:03:15 -0700
Subject: [PATCH 1302/4878] ibmvnic: Process crqs after enabling interrupts

[ Upstream commit 6e20d00158f31f7631d68b86996b7e951c4451c8 ]

Soon after registering a CRQ it is possible that we get a fail over or
maybe a CRQ_INIT from the VIOS while interrupts were disabled.

Look for any such CRQs after enabling interrupts.

Otherwise we can intermittently fail to bring up ibmvnic adapters during
boot, specially in kexec/kdump kernels.

Fixes: 032c5e82847a ("Driver for IBM System i/p VNIC protocol")
Reported-by: Vaishnavi Bhat <vaish123@in.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index c470dbc03a23e..4f99d97638248 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -5185,6 +5185,9 @@ static int init_crq_queue(struct ibmvnic_adapter *adapter)
 	crq->cur = 0;
 	spin_lock_init(&crq->lock);
 
+	/* process any CRQs that were queued before we enabled interrupts */
+	tasklet_schedule(&adapter->tasklet);
+
 	return retrc;
 
 req_irq_failed:
-- 
GitLab


From 9308f9c9c7a562e51abcbd4a32d0d30e2f01c384 Mon Sep 17 00:00:00 2001
From: Dan Schatzberg <schatzberg.dan@gmail.com>
Date: Thu, 28 Oct 2021 15:15:27 -0700
Subject: [PATCH 1303/4878] cgroup: Fix rootcg cpu.stat guest double counting

[ Upstream commit 81c49d39aea8a10e6d05d3aa1cb65ceb721e19b0 ]

In account_guest_time in kernel/sched/cputime.c guest time is
attributed to both CPUTIME_NICE and CPUTIME_USER in addition to
CPUTIME_GUEST_NICE and CPUTIME_GUEST respectively. Therefore, adding
both to calculate usage results in double counting any guest time at
the rootcg.

Fixes: 936f2a70f207 ("cgroup: add cpu.stat file to root cgroup")
Signed-off-by: Dan Schatzberg <schatzberg.dan@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/cgroup/rstat.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c
index d51175cedfca4..89ca9b61aa0d9 100644
--- a/kernel/cgroup/rstat.c
+++ b/kernel/cgroup/rstat.c
@@ -421,8 +421,6 @@ static void root_cgroup_cputime(struct task_cputime *cputime)
 		cputime->sum_exec_runtime += user;
 		cputime->sum_exec_runtime += sys;
 		cputime->sum_exec_runtime += cpustat[CPUTIME_STEAL];
-		cputime->sum_exec_runtime += cpustat[CPUTIME_GUEST];
-		cputime->sum_exec_runtime += cpustat[CPUTIME_GUEST_NICE];
 	}
 }
 
-- 
GitLab


From 84dde8c8c9335213f091977eb1e935f3f38da71c Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@kernel.org>
Date: Mon, 1 Nov 2021 15:21:51 -0700
Subject: [PATCH 1304/4878] bpf: Fix propagation of bounds from 64-bit min/max
 into 32-bit and var_off.

[ Upstream commit b9979db8340154526d9ab38a1883d6f6ba9b6d47 ]

Before this fix:
166: (b5) if r2 <= 0x1 goto pc+22
from 166 to 189: R2=invP(id=1,umax_value=1,var_off=(0x0; 0xffffffff))

After this fix:
166: (b5) if r2 <= 0x1 goto pc+22
from 166 to 189: R2=invP(id=1,umax_value=1,var_off=(0x0; 0x1))

While processing BPF_JLE the reg_set_min_max() would set true_reg->umax_value = 1
and call __reg_combine_64_into_32(true_reg).

Without the fix it would not pass the condition:
if (__reg64_bound_u32(reg->umin_value) && __reg64_bound_u32(reg->umax_value))

since umin_value == 0 at this point.
Before commit 10bf4e83167c the umin was incorrectly ingored.
The commit 10bf4e83167c fixed the correctness issue, but pessimized
propagation of 64-bit min max into 32-bit min max and corresponding var_off.

Fixes: 10bf4e83167c ("bpf: Fix propagation of 32 bit unsigned bounds from 64 bit bounds")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211101222153.78759-1-alexei.starovoitov@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/verifier.c                               | 2 +-
 tools/testing/selftests/bpf/verifier/array_access.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 0c26757ea7fbb..c56739a4a4219 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1303,7 +1303,7 @@ static bool __reg64_bound_s32(s64 a)
 
 static bool __reg64_bound_u32(u64 a)
 {
-	return a > U32_MIN && a < U32_MAX;
+	return a >= U32_MIN && a <= U32_MAX;
 }
 
 static void __reg_combine_64_into_32(struct bpf_reg_state *reg)
diff --git a/tools/testing/selftests/bpf/verifier/array_access.c b/tools/testing/selftests/bpf/verifier/array_access.c
index 1b1c798e92489..1b138cd2b187d 100644
--- a/tools/testing/selftests/bpf/verifier/array_access.c
+++ b/tools/testing/selftests/bpf/verifier/array_access.c
@@ -186,7 +186,7 @@
 	},
 	.fixup_map_hash_48b = { 3 },
 	.errstr_unpriv = "R0 leaks addr",
-	.errstr = "R0 unbounded memory access",
+	.errstr = "invalid access to map value, value_size=48 off=44 size=8",
 	.result_unpriv = REJECT,
 	.result = REJECT,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
-- 
GitLab


From 4a50bc00847635e092f8f447439d8263afaa65ed Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@kernel.org>
Date: Mon, 1 Nov 2021 15:21:52 -0700
Subject: [PATCH 1305/4878] bpf: Fix propagation of signed bounds from 64-bit
 min/max into 32-bit.

[ Upstream commit 388e2c0b978339dee9b0a81a2e546f8979e021e2 ]

Similar to unsigned bounds propagation fix signed bounds.
The 'Fixes' tag is a hint. There is no security bug here.
The verifier was too conservative.

Fixes: 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211101222153.78759-2-alexei.starovoitov@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/verifier.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index c56739a4a4219..a15826a9a644f 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1298,7 +1298,7 @@ static void __reg_combine_32_into_64(struct bpf_reg_state *reg)
 
 static bool __reg64_bound_s32(s64 a)
 {
-	return a > S32_MIN && a < S32_MAX;
+	return a >= S32_MIN && a <= S32_MAX;
 }
 
 static bool __reg64_bound_u32(u64 a)
-- 
GitLab


From f84c7a03d1ea9082e5ddd8d7d5605f35a4c7cb83 Mon Sep 17 00:00:00 2001
From: Frank Rowand <frank.rowand@sony.com>
Date: Thu, 28 Oct 2021 20:32:25 -0500
Subject: [PATCH 1306/4878] of: unittest: fix EXPECT text for gpio hog errors

[ Upstream commit e85860e5bc077865a04f0a88d0b0335d3200484a ]

The console message text for gpio hog errors does not match
what unittest expects.

Fixes: f4056e705b2ef ("of: unittest: add overlay gpio test to catch gpio hog problem")
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20211029013225.2048695-1-frowand.list@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/unittest.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index eb51bc1474401..1d4b0b7d0cc10 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -1682,19 +1682,19 @@ static void __init of_unittest_overlay_gpio(void)
 	 */
 
 	EXPECT_BEGIN(KERN_INFO,
-		     "GPIO line <<int>> (line-B-input) hogged as input\n");
+		     "gpio-<<int>> (line-B-input): hogged as input\n");
 
 	EXPECT_BEGIN(KERN_INFO,
-		     "GPIO line <<int>> (line-A-input) hogged as input\n");
+		     "gpio-<<int>> (line-A-input): hogged as input\n");
 
 	ret = platform_driver_register(&unittest_gpio_driver);
 	if (unittest(ret == 0, "could not register unittest gpio driver\n"))
 		return;
 
 	EXPECT_END(KERN_INFO,
-		   "GPIO line <<int>> (line-A-input) hogged as input\n");
+		   "gpio-<<int>> (line-A-input): hogged as input\n");
 	EXPECT_END(KERN_INFO,
-		   "GPIO line <<int>> (line-B-input) hogged as input\n");
+		   "gpio-<<int>> (line-B-input): hogged as input\n");
 
 	unittest(probe_pass_count + 2 == unittest_gpio_probe_pass_count,
 		 "unittest_gpio_probe() failed or not called\n");
@@ -1721,7 +1721,7 @@ static void __init of_unittest_overlay_gpio(void)
 	chip_request_count = unittest_gpio_chip_request_count;
 
 	EXPECT_BEGIN(KERN_INFO,
-		     "GPIO line <<int>> (line-D-input) hogged as input\n");
+		     "gpio-<<int>> (line-D-input): hogged as input\n");
 
 	/* overlay_gpio_03 contains gpio node and child gpio hog node */
 
@@ -1729,7 +1729,7 @@ static void __init of_unittest_overlay_gpio(void)
 		 "Adding overlay 'overlay_gpio_03' failed\n");
 
 	EXPECT_END(KERN_INFO,
-		   "GPIO line <<int>> (line-D-input) hogged as input\n");
+		   "gpio-<<int>> (line-D-input): hogged as input\n");
 
 	unittest(probe_pass_count + 1 == unittest_gpio_probe_pass_count,
 		 "unittest_gpio_probe() failed or not called\n");
@@ -1768,7 +1768,7 @@ static void __init of_unittest_overlay_gpio(void)
 	 */
 
 	EXPECT_BEGIN(KERN_INFO,
-		     "GPIO line <<int>> (line-C-input) hogged as input\n");
+		     "gpio-<<int>> (line-C-input): hogged as input\n");
 
 	/* overlay_gpio_04b contains child gpio hog node */
 
@@ -1776,7 +1776,7 @@ static void __init of_unittest_overlay_gpio(void)
 		 "Adding overlay 'overlay_gpio_04b' failed\n");
 
 	EXPECT_END(KERN_INFO,
-		   "GPIO line <<int>> (line-C-input) hogged as input\n");
+		   "gpio-<<int>> (line-C-input): hogged as input\n");
 
 	unittest(chip_request_count + 1 == unittest_gpio_chip_request_count,
 		 "unittest_gpio_chip_request() called %d times (expected 1 time)\n",
-- 
GitLab


From bfedc817769dc2361ac7c1a473ce5e3e7f789da5 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 14 Apr 2021 22:54:51 +0300
Subject: [PATCH 1307/4878] iio: st_sensors: Call st_sensors_power_enable()
 from bus drivers

[ Upstream commit 7db4f2cacbede1c6d95552c0d10e77398665a733 ]

In case we would initialize two IIO devices from one physical device,
we shouldn't have a clash on regulators. That's why move
st_sensors_power_enable() call from core to bus drivers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210414195454.84183-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/accel/st_accel_core.c       | 21 +++++----------------
 drivers/iio/accel/st_accel_i2c.c        | 17 +++++++++++++++--
 drivers/iio/accel/st_accel_spi.c        | 17 +++++++++++++++--
 drivers/iio/gyro/st_gyro_core.c         | 15 +++------------
 drivers/iio/gyro/st_gyro_i2c.c          | 17 +++++++++++++++--
 drivers/iio/gyro/st_gyro_spi.c          | 17 +++++++++++++++--
 drivers/iio/magnetometer/st_magn_core.c | 15 +++------------
 drivers/iio/magnetometer/st_magn_i2c.c  | 14 +++++++++++++-
 drivers/iio/magnetometer/st_magn_spi.c  | 14 +++++++++++++-
 drivers/iio/pressure/st_pressure_core.c | 15 +++------------
 drivers/iio/pressure/st_pressure_i2c.c  | 17 +++++++++++++++--
 drivers/iio/pressure/st_pressure_spi.c  | 17 +++++++++++++++--
 12 files changed, 130 insertions(+), 66 deletions(-)

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 43c50167d220c..bde0ca3ef7a4c 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -1255,13 +1255,9 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &accel_info;
 
-	err = st_sensors_power_enable(indio_dev);
-	if (err)
-		return err;
-
 	err = st_sensors_verify_id(indio_dev);
 	if (err < 0)
-		goto st_accel_power_off;
+		return err;
 
 	adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS;
 	indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
@@ -1270,10 +1266,8 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
 	channels = devm_kmemdup(&indio_dev->dev,
 				adata->sensor_settings->ch,
 				channels_size, GFP_KERNEL);
-	if (!channels) {
-		err = -ENOMEM;
-		goto st_accel_power_off;
-	}
+	if (!channels)
+		return -ENOMEM;
 
 	if (apply_acpi_orientation(indio_dev, channels))
 		dev_warn(&indio_dev->dev,
@@ -1288,11 +1282,11 @@ int st_accel_common_probe(struct iio_dev *indio_dev)
 
 	err = st_sensors_init_sensor(indio_dev, pdata);
 	if (err < 0)
-		goto st_accel_power_off;
+		return err;
 
 	err = st_accel_allocate_ring(indio_dev);
 	if (err < 0)
-		goto st_accel_power_off;
+		return err;
 
 	if (adata->irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
@@ -1315,9 +1309,6 @@ st_accel_device_register_error:
 		st_sensors_deallocate_trigger(indio_dev);
 st_accel_probe_trigger_error:
 	st_accel_deallocate_ring(indio_dev);
-st_accel_power_off:
-	st_sensors_power_disable(indio_dev);
-
 	return err;
 }
 EXPORT_SYMBOL(st_accel_common_probe);
@@ -1326,8 +1317,6 @@ void st_accel_common_remove(struct iio_dev *indio_dev)
 {
 	struct st_sensor_data *adata = iio_priv(indio_dev);
 
-	st_sensors_power_disable(indio_dev);
-
 	iio_device_unregister(indio_dev);
 	if (adata->irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 360e16f2cadb9..95e305b88d5ed 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -174,16 +174,29 @@ static int st_accel_i2c_probe(struct i2c_client *client)
 	if (ret < 0)
 		return ret;
 
+	ret = st_sensors_power_enable(indio_dev);
+	if (ret)
+		return ret;
+
 	ret = st_accel_common_probe(indio_dev);
 	if (ret < 0)
-		return ret;
+		goto st_accel_power_off;
 
 	return 0;
+
+st_accel_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return ret;
 }
 
 static int st_accel_i2c_remove(struct i2c_client *client)
 {
-	st_accel_common_remove(i2c_get_clientdata(client));
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	st_sensors_power_disable(indio_dev);
+
+	st_accel_common_remove(indio_dev);
 
 	return 0;
 }
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 568ff1bae0eee..83d3308ce5ccc 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -123,16 +123,29 @@ static int st_accel_spi_probe(struct spi_device *spi)
 	if (err < 0)
 		return err;
 
+	err = st_sensors_power_enable(indio_dev);
+	if (err)
+		return err;
+
 	err = st_accel_common_probe(indio_dev);
 	if (err < 0)
-		return err;
+		goto st_accel_power_off;
 
 	return 0;
+
+st_accel_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return err;
 }
 
 static int st_accel_spi_remove(struct spi_device *spi)
 {
-	st_accel_common_remove(spi_get_drvdata(spi));
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+
+	st_sensors_power_disable(indio_dev);
+
+	st_accel_common_remove(indio_dev);
 
 	return 0;
 }
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index c8aa051995d3b..8c87f85f20bd1 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -466,13 +466,9 @@ int st_gyro_common_probe(struct iio_dev *indio_dev)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &gyro_info;
 
-	err = st_sensors_power_enable(indio_dev);
-	if (err)
-		return err;
-
 	err = st_sensors_verify_id(indio_dev);
 	if (err < 0)
-		goto st_gyro_power_off;
+		return err;
 
 	gdata->num_data_channels = ST_GYRO_NUMBER_DATA_CHANNELS;
 	indio_dev->channels = gdata->sensor_settings->ch;
@@ -485,11 +481,11 @@ int st_gyro_common_probe(struct iio_dev *indio_dev)
 
 	err = st_sensors_init_sensor(indio_dev, pdata);
 	if (err < 0)
-		goto st_gyro_power_off;
+		return err;
 
 	err = st_gyro_allocate_ring(indio_dev);
 	if (err < 0)
-		goto st_gyro_power_off;
+		return err;
 
 	if (gdata->irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
@@ -512,9 +508,6 @@ st_gyro_device_register_error:
 		st_sensors_deallocate_trigger(indio_dev);
 st_gyro_probe_trigger_error:
 	st_gyro_deallocate_ring(indio_dev);
-st_gyro_power_off:
-	st_sensors_power_disable(indio_dev);
-
 	return err;
 }
 EXPORT_SYMBOL(st_gyro_common_probe);
@@ -523,8 +516,6 @@ void st_gyro_common_remove(struct iio_dev *indio_dev)
 {
 	struct st_sensor_data *gdata = iio_priv(indio_dev);
 
-	st_sensors_power_disable(indio_dev);
-
 	iio_device_unregister(indio_dev);
 	if (gdata->irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c
index 8190966e6ff0a..a25cc0379e163 100644
--- a/drivers/iio/gyro/st_gyro_i2c.c
+++ b/drivers/iio/gyro/st_gyro_i2c.c
@@ -86,16 +86,29 @@ static int st_gyro_i2c_probe(struct i2c_client *client,
 	if (err < 0)
 		return err;
 
+	err = st_sensors_power_enable(indio_dev);
+	if (err)
+		return err;
+
 	err = st_gyro_common_probe(indio_dev);
 	if (err < 0)
-		return err;
+		goto st_gyro_power_off;
 
 	return 0;
+
+st_gyro_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return err;
 }
 
 static int st_gyro_i2c_remove(struct i2c_client *client)
 {
-	st_gyro_common_remove(i2c_get_clientdata(client));
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	st_sensors_power_disable(indio_dev);
+
+	st_gyro_common_remove(indio_dev);
 
 	return 0;
 }
diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c
index efb862763ca3d..18d6a2aeda45a 100644
--- a/drivers/iio/gyro/st_gyro_spi.c
+++ b/drivers/iio/gyro/st_gyro_spi.c
@@ -90,16 +90,29 @@ static int st_gyro_spi_probe(struct spi_device *spi)
 	if (err < 0)
 		return err;
 
+	err = st_sensors_power_enable(indio_dev);
+	if (err)
+		return err;
+
 	err = st_gyro_common_probe(indio_dev);
 	if (err < 0)
-		return err;
+		goto st_gyro_power_off;
 
 	return 0;
+
+st_gyro_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return err;
 }
 
 static int st_gyro_spi_remove(struct spi_device *spi)
 {
-	st_gyro_common_remove(spi_get_drvdata(spi));
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+
+	st_sensors_power_disable(indio_dev);
+
+	st_gyro_common_remove(indio_dev);
 
 	return 0;
 }
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 79de721e60159..0fc38f17dbe04 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -494,13 +494,9 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &magn_info;
 
-	err = st_sensors_power_enable(indio_dev);
-	if (err)
-		return err;
-
 	err = st_sensors_verify_id(indio_dev);
 	if (err < 0)
-		goto st_magn_power_off;
+		return err;
 
 	mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
 	indio_dev->channels = mdata->sensor_settings->ch;
@@ -511,11 +507,11 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
 
 	err = st_sensors_init_sensor(indio_dev, NULL);
 	if (err < 0)
-		goto st_magn_power_off;
+		return err;
 
 	err = st_magn_allocate_ring(indio_dev);
 	if (err < 0)
-		goto st_magn_power_off;
+		return err;
 
 	if (mdata->irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
@@ -538,9 +534,6 @@ st_magn_device_register_error:
 		st_sensors_deallocate_trigger(indio_dev);
 st_magn_probe_trigger_error:
 	st_magn_deallocate_ring(indio_dev);
-st_magn_power_off:
-	st_sensors_power_disable(indio_dev);
-
 	return err;
 }
 EXPORT_SYMBOL(st_magn_common_probe);
@@ -549,8 +542,6 @@ void st_magn_common_remove(struct iio_dev *indio_dev)
 {
 	struct st_sensor_data *mdata = iio_priv(indio_dev);
 
-	st_sensors_power_disable(indio_dev);
-
 	iio_device_unregister(indio_dev);
 	if (mdata->irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index c6bb4ce775943..7a7ab27379fc1 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -78,16 +78,28 @@ static int st_magn_i2c_probe(struct i2c_client *client,
 	if (err < 0)
 		return err;
 
+	err = st_sensors_power_enable(indio_dev);
+	if (err)
+		return err;
+
 	err = st_magn_common_probe(indio_dev);
 	if (err < 0)
-		return err;
+		goto st_magn_power_off;
 
 	return 0;
+
+st_magn_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return err;
 }
 
 static int st_magn_i2c_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	st_sensors_power_disable(indio_dev);
+
 	st_magn_common_remove(indio_dev);
 
 	return 0;
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index 3d08d74c367da..ee352f083c020 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -72,16 +72,28 @@ static int st_magn_spi_probe(struct spi_device *spi)
 	if (err < 0)
 		return err;
 
+	err = st_sensors_power_enable(indio_dev);
+	if (err)
+		return err;
+
 	err = st_magn_common_probe(indio_dev);
 	if (err < 0)
-		return err;
+		goto st_magn_power_off;
 
 	return 0;
+
+st_magn_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return err;
 }
 
 static int st_magn_spi_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+
+	st_sensors_power_disable(indio_dev);
+
 	st_magn_common_remove(indio_dev);
 
 	return 0;
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 789a2928504a7..7912b5a683955 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -689,13 +689,9 @@ int st_press_common_probe(struct iio_dev *indio_dev)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &press_info;
 
-	err = st_sensors_power_enable(indio_dev);
-	if (err)
-		return err;
-
 	err = st_sensors_verify_id(indio_dev);
 	if (err < 0)
-		goto st_press_power_off;
+		return err;
 
 	/*
 	 * Skip timestamping channel while declaring available channels to
@@ -718,11 +714,11 @@ int st_press_common_probe(struct iio_dev *indio_dev)
 
 	err = st_sensors_init_sensor(indio_dev, pdata);
 	if (err < 0)
-		goto st_press_power_off;
+		return err;
 
 	err = st_press_allocate_ring(indio_dev);
 	if (err < 0)
-		goto st_press_power_off;
+		return err;
 
 	if (press_data->irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
@@ -745,9 +741,6 @@ st_press_device_register_error:
 		st_sensors_deallocate_trigger(indio_dev);
 st_press_probe_trigger_error:
 	st_press_deallocate_ring(indio_dev);
-st_press_power_off:
-	st_sensors_power_disable(indio_dev);
-
 	return err;
 }
 EXPORT_SYMBOL(st_press_common_probe);
@@ -756,8 +749,6 @@ void st_press_common_remove(struct iio_dev *indio_dev)
 {
 	struct st_sensor_data *press_data = iio_priv(indio_dev);
 
-	st_sensors_power_disable(indio_dev);
-
 	iio_device_unregister(indio_dev);
 	if (press_data->irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 09c6903f99b87..f0a5af314ceb8 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -98,16 +98,29 @@ static int st_press_i2c_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
+	ret = st_sensors_power_enable(indio_dev);
+	if (ret)
+		return ret;
+
 	ret = st_press_common_probe(indio_dev);
 	if (ret < 0)
-		return ret;
+		goto st_press_power_off;
 
 	return 0;
+
+st_press_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return ret;
 }
 
 static int st_press_i2c_remove(struct i2c_client *client)
 {
-	st_press_common_remove(i2c_get_clientdata(client));
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	st_sensors_power_disable(indio_dev);
+
+	st_press_common_remove(indio_dev);
 
 	return 0;
 }
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index b5ee3ec2764ff..b48cf7d01cd74 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -82,16 +82,29 @@ static int st_press_spi_probe(struct spi_device *spi)
 	if (err < 0)
 		return err;
 
+	err = st_sensors_power_enable(indio_dev);
+	if (err)
+		return err;
+
 	err = st_press_common_probe(indio_dev);
 	if (err < 0)
-		return err;
+		goto st_press_power_off;
 
 	return 0;
+
+st_press_power_off:
+	st_sensors_power_disable(indio_dev);
+
+	return err;
 }
 
 static int st_press_spi_remove(struct spi_device *spi)
 {
-	st_press_common_remove(spi_get_drvdata(spi));
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+
+	st_sensors_power_disable(indio_dev);
+
+	st_press_common_remove(indio_dev);
 
 	return 0;
 }
-- 
GitLab


From a2c17c93b771242df31d03e62c0ac5b91bc11165 Mon Sep 17 00:00:00 2001
From: Alexandru Ardelean <aardelean@deviqon.com>
Date: Mon, 23 Aug 2021 14:22:00 +0300
Subject: [PATCH 1308/4878] iio: st_sensors: disable regulators after device
 unregistration

[ Upstream commit 9f0b3e0cc0c88618aa9e5cecef747b1337ae0a5d ]

Up until commit ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal
to core") only the ST pressure driver seems to have had any regulator
disable. After that commit, the regulator handling was moved into the
common st_sensors logic.

In all instances of this regulator handling, the regulators were disabled
before unregistering the IIO device.
This can cause issues where the device would be powered down and still be
available to userspace, allowing it to send invalid/garbage data.

This change moves the st_sensors_power_disable() after the common probe
functions. These common probe functions also handle unregistering the IIO
device.

Fixes: 774487611c949 ("iio: pressure-core: st: Provide support for the Vdd power supply")
Fixes: ea7e586bdd331 ("iio: st_sensors: move regulator retrieveal to core")
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210823112204.243255-2-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/accel/st_accel_i2c.c       | 4 ++--
 drivers/iio/accel/st_accel_spi.c       | 4 ++--
 drivers/iio/gyro/st_gyro_i2c.c         | 4 ++--
 drivers/iio/gyro/st_gyro_spi.c         | 4 ++--
 drivers/iio/magnetometer/st_magn_i2c.c | 4 ++--
 drivers/iio/magnetometer/st_magn_spi.c | 4 ++--
 drivers/iio/pressure/st_pressure_i2c.c | 4 ++--
 drivers/iio/pressure/st_pressure_spi.c | 4 ++--
 8 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 95e305b88d5ed..02c823b93ecd4 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -194,10 +194,10 @@ static int st_accel_i2c_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_accel_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 83d3308ce5ccc..386ae18d5f269 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -143,10 +143,10 @@ static int st_accel_spi_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_accel_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c
index a25cc0379e163..3ed5779779465 100644
--- a/drivers/iio/gyro/st_gyro_i2c.c
+++ b/drivers/iio/gyro/st_gyro_i2c.c
@@ -106,10 +106,10 @@ static int st_gyro_i2c_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_gyro_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c
index 18d6a2aeda45a..c04bcf2518c11 100644
--- a/drivers/iio/gyro/st_gyro_spi.c
+++ b/drivers/iio/gyro/st_gyro_spi.c
@@ -110,10 +110,10 @@ static int st_gyro_spi_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_gyro_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index 7a7ab27379fc1..4b6a251dd44ef 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -98,10 +98,10 @@ static int st_magn_i2c_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_magn_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index ee352f083c020..501eff32df783 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -92,10 +92,10 @@ static int st_magn_spi_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_magn_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index f0a5af314ceb8..8c26ff61e56ad 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -118,10 +118,10 @@ static int st_press_i2c_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_press_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index b48cf7d01cd74..8cf8cd3b4554a 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -102,10 +102,10 @@ static int st_press_spi_remove(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
 
-	st_sensors_power_disable(indio_dev);
-
 	st_press_common_remove(indio_dev);
 
+	st_sensors_power_disable(indio_dev);
+
 	return 0;
 }
 
-- 
GitLab


From 5282385ee65597cafdaf5fb45da470688e9c8681 Mon Sep 17 00:00:00 2001
From: Junji Wei <weijunji@bytedance.com>
Date: Tue, 31 Aug 2021 16:32:23 +0800
Subject: [PATCH 1309/4878] RDMA/rxe: Fix wrong port_cap_flags

[ Upstream commit dcd3f985b20ffcc375f82ca0ca9f241c7025eb5e ]

The port->attr.port_cap_flags should be set to enum
ib_port_capability_mask_bits in ib_mad.h, not
RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20210831083223.65797-1-weijunji@bytedance.com
Signed-off-by: Junji Wei <weijunji@bytedance.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/sw/rxe/rxe_param.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h
index 25ab50d9b7c28..f9fb56ec6dfda 100644
--- a/drivers/infiniband/sw/rxe/rxe_param.h
+++ b/drivers/infiniband/sw/rxe/rxe_param.h
@@ -108,7 +108,7 @@ enum rxe_device_param {
 /* default/initial rxe port parameters */
 enum rxe_port_param {
 	RXE_PORT_GID_TBL_LEN		= 1024,
-	RXE_PORT_PORT_CAP_FLAGS		= RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP,
+	RXE_PORT_PORT_CAP_FLAGS		= IB_PORT_CM_SUP,
 	RXE_PORT_MAX_MSG_SZ		= 0x800000,
 	RXE_PORT_BAD_PKEY_CNTR		= 0,
 	RXE_PORT_QKEY_VIOL_CNTR		= 0,
-- 
GitLab


From 2fde76df1885a6bec04317e457121326070450eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Thu, 19 Aug 2021 08:57:02 +0200
Subject: [PATCH 1310/4878] ARM: dts: BCM5301X: Fix memory nodes names
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c5e1df3276d7a500678da9453be31a66ad115150 ]

Thix fixes:
arch/arm/boot/dts/bcm4708-netgear-r6250.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 134217728]]}
arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 134217728]]}
arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 402653184]]}
arch/arm/boot/dts/bcm4709-linksys-ea9200.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 134217728]]}
arch/arm/boot/dts/bcm4709-netgear-r7000.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 134217728]]}
arch/arm/boot/dts/bcm4709-netgear-r8000.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 134217728]]}
arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728]]}
arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728], [2281701376, 402653184]]}
arch/arm/boot/dts/bcm53016-meraki-mr32.dt.yaml: /: memory: False schema does not allow {'reg': [[0, 134217728]], 'device_type': ['memory']}
arch/arm/boot/dts/bcm94708.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728]]}
arch/arm/boot/dts/bcm94709.dt.yaml: /: memory: False schema does not allow {'device_type': ['memory'], 'reg': [[0, 134217728]]}

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm4708-netgear-r6250.dts       | 2 +-
 arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts       | 2 +-
 arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts | 2 +-
 arch/arm/boot/dts/bcm4709-linksys-ea9200.dts      | 2 +-
 arch/arm/boot/dts/bcm4709-netgear-r7000.dts       | 2 +-
 arch/arm/boot/dts/bcm4709-netgear-r8000.dts       | 2 +-
 arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts | 2 +-
 arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts     | 2 +-
 arch/arm/boot/dts/bcm53016-meraki-mr32.dts        | 2 +-
 arch/arm/boot/dts/bcm94708.dts                    | 2 +-
 arch/arm/boot/dts/bcm94709.dts                    | 2 +-
 11 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
index 61c7b137607e5..7900aac4f35a9 100644
--- a/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
+++ b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
@@ -20,7 +20,7 @@
 		bootargs = "console=ttyS0,115200 earlycon";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x08000000>;
diff --git a/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts b/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
index 6c6bb7b17d27a..7546c8d07bcd7 100644
--- a/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
+++ b/arch/arm/boot/dts/bcm4709-asus-rt-ac87u.dts
@@ -19,7 +19,7 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x08000000>;
diff --git a/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts b/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
index d29e7f80ea6aa..beae9eab9cb8c 100644
--- a/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
+++ b/arch/arm/boot/dts/bcm4709-buffalo-wxr-1900dhp.dts
@@ -19,7 +19,7 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x18000000>;
diff --git a/arch/arm/boot/dts/bcm4709-linksys-ea9200.dts b/arch/arm/boot/dts/bcm4709-linksys-ea9200.dts
index 38fbefdf2e4e4..ee94455a7236d 100644
--- a/arch/arm/boot/dts/bcm4709-linksys-ea9200.dts
+++ b/arch/arm/boot/dts/bcm4709-linksys-ea9200.dts
@@ -16,7 +16,7 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x08000000>;
diff --git a/arch/arm/boot/dts/bcm4709-netgear-r7000.dts b/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
index 7989a53597d4f..56d309dbc6b0d 100644
--- a/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
+++ b/arch/arm/boot/dts/bcm4709-netgear-r7000.dts
@@ -19,7 +19,7 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x08000000>;
diff --git a/arch/arm/boot/dts/bcm4709-netgear-r8000.dts b/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
index 87b655be674c5..184e3039aa864 100644
--- a/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
+++ b/arch/arm/boot/dts/bcm4709-netgear-r8000.dts
@@ -30,7 +30,7 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x08000000>;
diff --git a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
index f806be5da7237..c2a266a439d05 100644
--- a/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
+++ b/arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts
@@ -15,7 +15,7 @@
 		bootargs = "console=ttyS0,115200 earlycon";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>;
 	};
diff --git a/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts b/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
index 2666195b6ffeb..3d415d874bd39 100644
--- a/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
+++ b/arch/arm/boot/dts/bcm47094-luxul-xwc-2000.dts
@@ -16,7 +16,7 @@
 		bootargs = "earlycon";
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>,
 		      <0x88000000 0x18000000>;
diff --git a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
index 3b978dc8997a4..612d61852bfb9 100644
--- a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
+++ b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
@@ -20,7 +20,7 @@
 		bootargs = " console=ttyS0,115200n8 earlycon";
 	};
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x08000000>;
 		device_type = "memory";
 	};
diff --git a/arch/arm/boot/dts/bcm94708.dts b/arch/arm/boot/dts/bcm94708.dts
index 3d13e46c69494..d9eb2040b9631 100644
--- a/arch/arm/boot/dts/bcm94708.dts
+++ b/arch/arm/boot/dts/bcm94708.dts
@@ -38,7 +38,7 @@
 	model = "NorthStar SVK (BCM94708)";
 	compatible = "brcm,bcm94708", "brcm,bcm4708";
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>;
 	};
diff --git a/arch/arm/boot/dts/bcm94709.dts b/arch/arm/boot/dts/bcm94709.dts
index 5017b7b259cbe..618c812eef73e 100644
--- a/arch/arm/boot/dts/bcm94709.dts
+++ b/arch/arm/boot/dts/bcm94709.dts
@@ -38,7 +38,7 @@
 	model = "NorthStar SVK (BCM94709)";
 	compatible = "brcm,bcm94709", "brcm,bcm4709", "brcm,bcm4708";
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>;
 	};
-- 
GitLab


From cdd3dd905ceac00f5929d5a23549d90f72d16f5c Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Fri, 23 Apr 2021 09:02:26 +0200
Subject: [PATCH 1311/4878] clk: mvebu: ap-cpu-clk: Fix a memory leak in error
 handling paths

[ Upstream commit af9617b419f77cf0b99702a7b2b0519da0d27715 ]

If we exit the for_each_of_cpu_node loop early, the reference on the
current node must be decremented, otherwise there is a leak.

Fixes: f756e362d938 ("clk: mvebu: add CPU clock driver for Armada 7K/8K")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/545df946044fc1fc05a4217cdf0054be7a79e49e.1619161112.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/mvebu/ap-cpu-clk.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/mvebu/ap-cpu-clk.c b/drivers/clk/mvebu/ap-cpu-clk.c
index b4259b60dcfd6..25de4b6da776f 100644
--- a/drivers/clk/mvebu/ap-cpu-clk.c
+++ b/drivers/clk/mvebu/ap-cpu-clk.c
@@ -256,12 +256,15 @@ static int ap_cpu_clock_probe(struct platform_device *pdev)
 		int cpu, err;
 
 		err = of_property_read_u32(dn, "reg", &cpu);
-		if (WARN_ON(err))
+		if (WARN_ON(err)) {
+			of_node_put(dn);
 			return err;
+		}
 
 		/* If cpu2 or cpu3 is enabled */
 		if (cpu & APN806_CLUSTER_NUM_MASK) {
 			nclusters = 2;
+			of_node_put(dn);
 			break;
 		}
 	}
@@ -288,8 +291,10 @@ static int ap_cpu_clock_probe(struct platform_device *pdev)
 		int cpu, err;
 
 		err = of_property_read_u32(dn, "reg", &cpu);
-		if (WARN_ON(err))
+		if (WARN_ON(err)) {
+			of_node_put(dn);
 			return err;
+		}
 
 		cluster_index = cpu & APN806_CLUSTER_NUM_MASK;
 		cluster_index >>= APN806_CLUSTER_NUM_OFFSET;
@@ -301,6 +306,7 @@ static int ap_cpu_clock_probe(struct platform_device *pdev)
 		parent = of_clk_get(np, cluster_index);
 		if (IS_ERR(parent)) {
 			dev_err(dev, "Could not get the clock parent\n");
+			of_node_put(dn);
 			return -EINVAL;
 		}
 		parent_name =  __clk_get_name(parent);
@@ -319,8 +325,10 @@ static int ap_cpu_clock_probe(struct platform_device *pdev)
 		init.parent_names = &parent_name;
 
 		ret = devm_clk_hw_register(dev, &ap_cpu_clk[cluster_index].hw);
-		if (ret)
+		if (ret) {
+			of_node_put(dn);
 			return ret;
+		}
 		ap_cpu_data->hws[cluster_index] = &ap_cpu_clk[cluster_index].hw;
 	}
 
-- 
GitLab


From 3f33f09d9f6aeb7a97d8ce8d9b1f501b81464110 Mon Sep 17 00:00:00 2001
From: Jackie Liu <liuyun01@kylinos.cn>
Date: Wed, 1 Sep 2021 20:35:57 +0800
Subject: [PATCH 1312/4878] ARM: s3c: irq-s3c24xx: Fix return value check for
 s3c24xx_init_intc()

[ Upstream commit 2aa717473ce96c93ae43a5dc8c23cedc8ce7dd9f ]

The s3c24xx_init_intc() returns an error pointer upon failure, not NULL.
let's add an error pointer check in s3c24xx_handle_irq.

s3c_intc[0] is not NULL or ERR, we can simplify the code.

Fixes: 1f629b7a3ced ("ARM: S3C24XX: transform irq handling into a declarative form")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Link: https://lore.kernel.org/r/20210901123557.1043953-1-liu.yun@linux.dev
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-s3c/irq-s3c24xx.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-s3c/irq-s3c24xx.c b/arch/arm/mach-s3c/irq-s3c24xx.c
index 79b5f19af7a52..19fb9bdf446b4 100644
--- a/arch/arm/mach-s3c/irq-s3c24xx.c
+++ b/arch/arm/mach-s3c/irq-s3c24xx.c
@@ -360,11 +360,25 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc,
 asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
 {
 	do {
-		if (likely(s3c_intc[0]))
-			if (s3c24xx_handle_intc(s3c_intc[0], regs, 0))
-				continue;
+		/*
+		 * For platform based machines, neither ERR nor NULL can happen here.
+		 * The s3c24xx_handle_irq() will be set as IRQ handler iff this succeeds:
+		 *
+		 *    s3c_intc[0] = s3c24xx_init_intc()
+		 *
+		 * If this fails, the next calls to s3c24xx_init_intc() won't be executed.
+		 *
+		 * For DT machine, s3c_init_intc_of() could set the IRQ handler without
+		 * setting s3c_intc[0] only if it was called with num_ctrl=0. There is no
+		 * such code path, so again the s3c_intc[0] will have a valid pointer if
+		 * set_handle_irq() is called.
+		 *
+		 * Therefore in s3c24xx_handle_irq(), the s3c_intc[0] is always something.
+		 */
+		if (s3c24xx_handle_intc(s3c_intc[0], regs, 0))
+			continue;
 
-		if (s3c_intc[2])
+		if (!IS_ERR_OR_NULL(s3c_intc[2]))
 			if (s3c24xx_handle_intc(s3c_intc[2], regs, 64))
 				continue;
 
-- 
GitLab


From 2887df89e7f6dab31deefc596d7ca6b9cb6fbbbe Mon Sep 17 00:00:00 2001
From: Alex Bee <knaerzche@gmail.com>
Date: Wed, 23 Jun 2021 13:59:26 +0200
Subject: [PATCH 1313/4878] arm64: dts: rockchip: Fix GPU register width for
 RK3328

[ Upstream commit 932b4610f55b49f3a158b0db451137bab7ed0e1f ]

As can be seen in RK3328's TRM the register range for the GPU is
0xff300000 to 0xff330000.
It would (and does in vendor kernel) overlap with the registers of
the HEVC encoder (node/driver do not exist yet in upstream kernel).
See already existing h265e_mmu node.

Fixes: 752fbc0c8da7 ("arm64: dts: rockchip: add rk3328 mali gpu node")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210623115926.164861-1-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index e546c9d1d6463..72112fe05a5c4 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -603,7 +603,7 @@
 
 	gpu: gpu@ff300000 {
 		compatible = "rockchip,rk3328-mali", "arm,mali-450";
-		reg = <0x0 0xff300000 0x0 0x40000>;
+		reg = <0x0 0xff300000 0x0 0x30000>;
 		interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
-- 
GitLab


From fe3c11fc627b52f18864ff26547b87134b1c6790 Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 30 Aug 2021 19:57:39 +0200
Subject: [PATCH 1314/4878] ARM: dts: qcom: msm8974: Add xo_board reference
 clock to DSI0 PHY

[ Upstream commit 8ccecf6c710b8c048eecc65709640642e5357d6e ]

According to YAML validation, and for a future patchset putting this
xo_board reference clock to use as VCO reference parent, add the missing
clock to dsi_phy0.

Fixes: 5a9fc531f6ec ("ARM: dts: msm8974: add display support")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210830175739.143401-1-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/qcom-msm8974.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 51f5f904f9eb9..5f7426fb4e419 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -1528,8 +1528,8 @@
 				#phy-cells = <0>;
 				qcom,dsi-phy-index = <0>;
 
-				clocks = <&mmcc MDSS_AHB_CLK>;
-				clock-names = "iface";
+				clocks = <&mmcc MDSS_AHB_CLK>, <&xo_board>;
+				clock-names = "iface", "ref";
 			};
 		};
 
-- 
GitLab


From 64a43b771258a01e6690c1a1aa8266ec657e7dfe Mon Sep 17 00:00:00 2001
From: Selvin Xavier <selvin.xavier@broadcom.com>
Date: Wed, 15 Sep 2021 05:32:38 -0700
Subject: [PATCH 1315/4878] RDMA/bnxt_re: Fix query SRQ failure

[ Upstream commit 598d16fa1bf93431ad35bbab3ed1affe4fb7b562 ]

Fill the missing parameters for the FW command while querying SRQ.

Fixes: 37cb11acf1f7 ("RDMA/bnxt_re: Add SRQ support for Broadcom adapters")
Link: https://lore.kernel.org/r/1631709163-2287-8-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/bnxt_re/qplib_fp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index d4d4959c2434c..bd153aa7e9ab3 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -707,12 +707,13 @@ int bnxt_qplib_query_srq(struct bnxt_qplib_res *res,
 	int rc = 0;
 
 	RCFW_CMD_PREP(req, QUERY_SRQ, cmd_flags);
-	req.srq_cid = cpu_to_le32(srq->id);
 
 	/* Configure the request */
 	sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb));
 	if (!sbuf)
 		return -ENOMEM;
+	req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS;
+	req.srq_cid = cpu_to_le32(srq->id);
 	sb = sbuf->sb;
 	rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
 					  (void *)sbuf, 0);
-- 
GitLab


From 7a1617a9919bfe82cc9d023c233f90ba11214b14 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Wed, 15 Sep 2021 11:23:53 +0530
Subject: [PATCH 1316/4878] arm64: dts: ti: k3-j721e-main: Fix
 "max-virtual-functions" in PCIe EP nodes

[ Upstream commit 9af3ef954975c383eeb667aee207d9ce6fbef8c4 ]

commit 4e5833884f66 ("arm64: dts: ti: k3-j721e-main: Add PCIe device
tree nodes") added "max-virtual-functions" to have 16 bit values.
Fix "max-virtual-functions" in PCIe endpoint (EP) nodes to have 8 bit
values instead of 16.

Fixes: 4e5833884f66 ("arm64: dts: ti: k3-j721e-main: Add PCIe device tree nodes")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20210915055358.19997-2-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 6ffdebd601223..4e010253b028a 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -656,7 +656,7 @@
 		clock-names = "fck";
 		cdns,max-outbound-regions = <16>;
 		max-functions = /bits/ 8 <6>;
-		max-virtual-functions = /bits/ 16 <4 4 4 4 0 0>;
+		max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>;
 		dma-coherent;
 	};
 
@@ -705,7 +705,7 @@
 		clock-names = "fck";
 		cdns,max-outbound-regions = <16>;
 		max-functions = /bits/ 8 <6>;
-		max-virtual-functions = /bits/ 16 <4 4 4 4 0 0>;
+		max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>;
 		dma-coherent;
 	};
 
@@ -754,7 +754,7 @@
 		clock-names = "fck";
 		cdns,max-outbound-regions = <16>;
 		max-functions = /bits/ 8 <6>;
-		max-virtual-functions = /bits/ 16 <4 4 4 4 0 0>;
+		max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>;
 		dma-coherent;
 	};
 
@@ -803,7 +803,7 @@
 		clock-names = "fck";
 		cdns,max-outbound-regions = <16>;
 		max-functions = /bits/ 8 <6>;
-		max-virtual-functions = /bits/ 16 <4 4 4 4 0 0>;
+		max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>;
 		dma-coherent;
 		#address-cells = <2>;
 		#size-cells = <2>;
-- 
GitLab


From 20baf01638054058c96c678f53d408a70943a771 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Wed, 15 Sep 2021 11:23:54 +0530
Subject: [PATCH 1317/4878] arm64: dts: ti: k3-j721e-main: Fix "bus-range" upto
 256 bus number for PCIe

[ Upstream commit 5f46633565b1c1e1840a927676065d72b442dac4 ]

commit 4e5833884f66 ("arm64: dts: ti: k3-j721e-main: Add PCIe device
tree nodes") restricted PCIe bus numbers from 0 to 15 (due to SMMU
restriction in J721E). However since SMMU is not enabled, allow the full
supported bus numbers from 0 to 255.

Fixes: 4e5833884f66 ("arm64: dts: ti: k3-j721e-main: Add PCIe device tree nodes")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20210915055358.19997-3-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 4e010253b028a..85526f72b4616 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -629,7 +629,7 @@
 		clock-names = "fck";
 		#address-cells = <3>;
 		#size-cells = <2>;
-		bus-range = <0x0 0xf>;
+		bus-range = <0x0 0xff>;
 		vendor-id = <0x104c>;
 		device-id = <0xb00d>;
 		msi-map = <0x0 &gic_its 0x0 0x10000>;
@@ -678,7 +678,7 @@
 		clock-names = "fck";
 		#address-cells = <3>;
 		#size-cells = <2>;
-		bus-range = <0x0 0xf>;
+		bus-range = <0x0 0xff>;
 		vendor-id = <0x104c>;
 		device-id = <0xb00d>;
 		msi-map = <0x0 &gic_its 0x10000 0x10000>;
@@ -727,7 +727,7 @@
 		clock-names = "fck";
 		#address-cells = <3>;
 		#size-cells = <2>;
-		bus-range = <0x0 0xf>;
+		bus-range = <0x0 0xff>;
 		vendor-id = <0x104c>;
 		device-id = <0xb00d>;
 		msi-map = <0x0 &gic_its 0x20000 0x10000>;
@@ -776,7 +776,7 @@
 		clock-names = "fck";
 		#address-cells = <3>;
 		#size-cells = <2>;
-		bus-range = <0x0 0xf>;
+		bus-range = <0x0 0xff>;
 		vendor-id = <0x104c>;
 		device-id = <0xb00d>;
 		msi-map = <0x0 &gic_its 0x30000 0x10000>;
-- 
GitLab


From 4ccb7e4a972ce58fbf434d033ec9485d91b3c57a Mon Sep 17 00:00:00 2001
From: Anand Moon <linux.amoon@gmail.com>
Date: Sun, 19 Sep 2021 20:29:09 +0000
Subject: [PATCH 1318/4878] arm64: dts: meson-g12a: Fix the pwm regulator
 supply properties

[ Upstream commit 085675117ecf5e02c4220698fd549024ec64ad2c ]

After enabling CONFIG_REGULATOR_DEBUG=y we observe below debug logs.
Changes help link VDDCPU pwm regulator to 12V regulator supply
instead of dummy regulator.

[   11.602281] pwm-regulator regulator-vddcpu: Looking up pwm-supply property
               in node /regulator-vddcpu failed
[   11.602344] VDDCPU: supplied by regulator-dummy
[   11.602365] regulator-dummy: could not add device link regulator.11: -ENOENT
[   11.602548] VDDCPU: 721 <--> 1022 mV at 1022 mV, enabled

Fixes: e9bc0765cc12 ("arm64: dts: meson-g12a: enable DVFS on G12A boards")

Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20210919202918.3556-2-linux.amoon@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts  | 2 +-
 arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts    | 2 +-
 arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
index b00d0468c7534..4d5b3e514b514 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
@@ -139,7 +139,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&dc_in>;
+		pwm-supply = <&dc_in>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
index a26bfe72550fe..4b5d11e56364d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts
@@ -139,7 +139,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
index 463a72d6bb7c7..26b5d9327324a 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
@@ -139,7 +139,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&dc_in>;
+		pwm-supply = <&dc_in>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
-- 
GitLab


From 85085c34370583072bed3ad5e39b52288353a3a6 Mon Sep 17 00:00:00 2001
From: Anand Moon <linux.amoon@gmail.com>
Date: Sun, 19 Sep 2021 20:29:10 +0000
Subject: [PATCH 1319/4878] arm64: dts: meson-g12b: Fix the pwm regulator
 supply properties

[ Upstream commit 62183863f708c2464769e0d477c8ce9f3d326feb ]

After enabling CONFIG_REGULATOR_DEBUG=y we observer below debug logs.
Changes help link VDDCP_A and VDDCPU_B pwm regulator to 12V regulator
supply instead of dummy regulator.

[    4.147196] VDDCPU_A: will resolve supply early: pwm
[    4.147216] pwm-regulator regulator-vddcpu-a: Looking up pwm-supply from device tree
[    4.147227] pwm-regulator regulator-vddcpu-a: Looking up pwm-supply property in node /regulator-vddcpu-a failed
[    4.147258] VDDCPU_A: supplied by regulator-dummy
[    4.147288] regulator-dummy: could not add device link regulator.12: -ENOENT
[    4.147353] VDDCPU_A: 721 <--> 1022 mV at 871 mV, enabled
[    4.152014] VDDCPU_B: will resolve supply early: pwm
[    4.152035] pwm-regulator regulator-vddcpu-b: Looking up pwm-supply from device tree
[    4.152047] pwm-regulator regulator-vddcpu-b: Looking up pwm-supply property in node /regulator-vddcpu-b failed
[    4.152079] VDDCPU_B: supplied by regulator-dummy
[    4.152108] regulator-dummy: could not add device link regulator.13: -ENOENT

Fixes: c6d29c66e582 ("arm64: dts: meson-g12b-khadas-vim3: add initial device-tree")
Fixes: d14734a04a8a ("arm64: dts: meson-g12b-odroid-n2: enable DVFS")
Fixes: 3cb74db9b256 ("arm64: dts: meson: convert ugoos-am6 to common w400 dtsi")

Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20210919202918.3556-3-linux.amoon@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-khadas-vim3.dtsi | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi   | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi        | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-khadas-vim3.dtsi
index f42cf4b8af2d4..16dd409051b40 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-khadas-vim3.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-khadas-vim3.dtsi
@@ -18,7 +18,7 @@
 		regulator-min-microvolt = <690000>;
 		regulator-max-microvolt = <1050000>;
 
-		vin-supply = <&dc_in>;
+		pwm-supply = <&dc_in>;
 
 		pwms = <&pwm_ab 0 1250 0>;
 		pwm-dutycycle-range = <100 0>;
@@ -37,7 +37,7 @@
 		regulator-min-microvolt = <690000>;
 		regulator-max-microvolt = <1050000>;
 
-		vin-supply = <&vsys_3v3>;
+		pwm-supply = <&vsys_3v3>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
index 39a09661c5f62..59b5f39088757 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
@@ -128,7 +128,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_ab 0 1250 0>;
 		pwm-dutycycle-range = <100 0>;
@@ -147,7 +147,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
index feb0885047400..b40d2c1002c92 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi
@@ -96,7 +96,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_ab 0 1250 0>;
 		pwm-dutycycle-range = <100 0>;
@@ -115,7 +115,7 @@
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
-- 
GitLab


From b6493c2b7ddb7a019908fa80fc4ebc323fe36ffb Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 21 Sep 2021 12:42:25 +0300
Subject: [PATCH 1320/4878] bus: ti-sysc: Fix timekeeping_suspended warning on
 resume

[ Upstream commit b3e9431854e8f305385d5de225441c0477b936cb ]

On resume we can get a warning at kernel/time/timekeeping.c:824 for
timekeeping_suspended.

Let's fix this by adding separate functions for sysc_poll_reset_sysstatus()
and sysc_poll_reset_sysconfig() and have the new functions handle also
timekeeping_suspended.

If iopoll at some point supports timekeeping_suspended, we can just drop
the custom handling from these functions.

Fixes: d46f9fbec719 ("bus: ti-sysc: Use optional clocks on for enable and wait for softreset bit")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bus/ti-sysc.c | 65 +++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 12 deletions(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 02341fd66e8d2..2ff437e5c7051 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -17,6 +17,7 @@
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 #include <linux/sys_soc.h>
+#include <linux/timekeeping.h>
 #include <linux/iopoll.h>
 
 #include <linux/platform_data/ti-sysc.h>
@@ -223,37 +224,77 @@ static u32 sysc_read_sysstatus(struct sysc *ddata)
 	return sysc_read(ddata, offset);
 }
 
-/* Poll on reset status */
-static int sysc_wait_softreset(struct sysc *ddata)
+static int sysc_poll_reset_sysstatus(struct sysc *ddata)
 {
-	u32 sysc_mask, syss_done, rstval;
-	int syss_offset, error = 0;
-
-	if (ddata->cap->regbits->srst_shift < 0)
-		return 0;
-
-	syss_offset = ddata->offsets[SYSC_SYSSTATUS];
-	sysc_mask = BIT(ddata->cap->regbits->srst_shift);
+	int error, retries;
+	u32 syss_done, rstval;
 
 	if (ddata->cfg.quirks & SYSS_QUIRK_RESETDONE_INVERTED)
 		syss_done = 0;
 	else
 		syss_done = ddata->cfg.syss_mask;
 
-	if (syss_offset >= 0) {
+	if (likely(!timekeeping_suspended)) {
 		error = readx_poll_timeout_atomic(sysc_read_sysstatus, ddata,
 				rstval, (rstval & ddata->cfg.syss_mask) ==
 				syss_done, 100, MAX_MODULE_SOFTRESET_WAIT);
+	} else {
+		retries = MAX_MODULE_SOFTRESET_WAIT;
+		while (retries--) {
+			rstval = sysc_read_sysstatus(ddata);
+			if ((rstval & ddata->cfg.syss_mask) == syss_done)
+				return 0;
+			udelay(2); /* Account for udelay flakeyness */
+		}
+		error = -ETIMEDOUT;
+	}
 
-	} else if (ddata->cfg.quirks & SYSC_QUIRK_RESET_STATUS) {
+	return error;
+}
+
+static int sysc_poll_reset_sysconfig(struct sysc *ddata)
+{
+	int error, retries;
+	u32 sysc_mask, rstval;
+
+	sysc_mask = BIT(ddata->cap->regbits->srst_shift);
+
+	if (likely(!timekeeping_suspended)) {
 		error = readx_poll_timeout_atomic(sysc_read_sysconfig, ddata,
 				rstval, !(rstval & sysc_mask),
 				100, MAX_MODULE_SOFTRESET_WAIT);
+	} else {
+		retries = MAX_MODULE_SOFTRESET_WAIT;
+		while (retries--) {
+			rstval = sysc_read_sysconfig(ddata);
+			if (!(rstval & sysc_mask))
+				return 0;
+			udelay(2); /* Account for udelay flakeyness */
+		}
+		error = -ETIMEDOUT;
 	}
 
 	return error;
 }
 
+/* Poll on reset status */
+static int sysc_wait_softreset(struct sysc *ddata)
+{
+	int syss_offset, error = 0;
+
+	if (ddata->cap->regbits->srst_shift < 0)
+		return 0;
+
+	syss_offset = ddata->offsets[SYSC_SYSSTATUS];
+
+	if (syss_offset >= 0)
+		error = sysc_poll_reset_sysstatus(ddata);
+	else if (ddata->cfg.quirks & SYSC_QUIRK_RESET_STATUS)
+		error = sysc_poll_reset_sysconfig(ddata);
+
+	return error;
+}
+
 static int sysc_add_named_clock_from_child(struct sysc *ddata,
 					   const char *name,
 					   const char *optfck_name)
-- 
GitLab


From 6348983be709145bde3f648c59aab9fb24487cb5 Mon Sep 17 00:00:00 2001
From: Peter Rosin <peda@axentia.se>
Date: Mon, 20 Sep 2021 22:37:38 +0200
Subject: [PATCH 1321/4878] ARM: dts: at91: tse850: the emac<->phy interface is
 rmii

[ Upstream commit dcdbc335a91a26e022a803e1a6b837266989c032 ]

This went unnoticed until commit 7897b071ac3b ("net: macb: convert
to phylink") which tickled the problem. The sama5d3 emac has never
been capable of rgmii, and it all just happened to work before that
commit.

Fixes: 21dd0ece34c2 ("ARM: dts: at91: add devicetree for the Axentia TSE-850")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/ea781f5e-422f-6cbf-3cf4-d5a7bac9392d@axentia.se
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/at91-tse850-3.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91-tse850-3.dts b/arch/arm/boot/dts/at91-tse850-3.dts
index 3ca97b47c69ce..7e5c598e7e68f 100644
--- a/arch/arm/boot/dts/at91-tse850-3.dts
+++ b/arch/arm/boot/dts/at91-tse850-3.dts
@@ -262,7 +262,7 @@
 &macb1 {
 	status = "okay";
 
-	phy-mode = "rgmii";
+	phy-mode = "rmii";
 
 	#address-cells = <1>;
 	#size-cells = <0>;
-- 
GitLab


From 24149c954f329ace9db0214808a3acfa178f01e2 Mon Sep 17 00:00:00 2001
From: Tong Zhang <ztong0001@gmail.com>
Date: Mon, 6 Sep 2021 21:07:02 -0700
Subject: [PATCH 1322/4878] scsi: dc395: Fix error case unwinding

[ Upstream commit cbd9a3347c757383f3d2b50cf7cfd03eb479c481 ]

dc395x_init_one()->adapter_init() might fail. In this case, the acb is
already cleaned up by adapter_init(), no need to do that in
adapter_uninit(acb) again.

[    1.252251] dc395x: adapter init failed
[    1.254900] RIP: 0010:adapter_uninit+0x94/0x170 [dc395x]
[    1.260307] Call Trace:
[    1.260442]  dc395x_init_one.cold+0x72a/0x9bb [dc395x]

Link: https://lore.kernel.org/r/20210907040702.1846409-1-ztong0001@gmail.com
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/dc395x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index fa16894d8758c..6cb48ae8e1241 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -4658,6 +4658,7 @@ static int dc395x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	/* initialise the adapter and everything we need */
  	if (adapter_init(acb, io_port_base, io_port_len, irq)) {
 		dprintkl(KERN_INFO, "adapter init failed\n");
+		acb = NULL;
 		goto fail;
 	}
 
-- 
GitLab


From c4edd206d52ef9671b7af695d44d7d4521b248d2 Mon Sep 17 00:00:00 2001
From: Jackie Liu <liuyun01@kylinos.cn>
Date: Mon, 13 Sep 2021 14:19:08 +0800
Subject: [PATCH 1323/4878] MIPS: loongson64: make CPU_LOONGSON64 depends on
 MIPS_FP_SUPPORT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 7f3b3c2bfa9c93ab9b5595543496f570983dc330 ]

mach/loongson64 fails to build when the FPU support is disabled:

arch/mips/loongson64/cop2-ex.c:45:15: error: implicit declaration of function ‘__is_fpu_owner’; did you mean ‘is_fpu_owner’? [-Werror=implicit-function-declaration]
arch/mips/loongson64/cop2-ex.c:98:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:99:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:131:43: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:137:38: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:203:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:219:30: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:283:38: error: ‘struct thread_struct’ has no member named ‘fpu’
arch/mips/loongson64/cop2-ex.c:301:38: error: ‘struct thread_struct’ has no member named ‘fpu’

Fixes: ef2f826c8f2f ("MIPS: Loongson-3: Enable the COP2 usage")
Suggested-by: Huacai Chen <chenhuacai@kernel.org>
Reviewed-by: Huacai Chen <chenhuacai@kernel.org>
Reported-by: k2ci robot <kernel-bot@kylinos.cn>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 1a63f592034eb..5c6e9ed9b2a75 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1380,6 +1380,7 @@ config CPU_LOONGSON64
 	select MIPS_ASID_BITS_VARIABLE
 	select MIPS_PGD_C0_CONTEXT
 	select MIPS_L1_CACHE_SHIFT_6
+	select MIPS_FP_SUPPORT
 	select GPIOLIB
 	select SWIOTLB
 	select HAVE_KVM
-- 
GitLab


From 980c7bdd20fcc1a4fddb44f30a455ca313a82dfa Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Sat, 4 Sep 2021 10:37:41 +0800
Subject: [PATCH 1324/4878] JFS: fix memleak in jfs_mount

[ Upstream commit c48a14dca2cb57527dde6b960adbe69953935f10 ]

In jfs_mount, when diMount(ipaimap2) fails, it goes to errout35. However,
the following code does not free ipaimap2 allocated by diReadSpecial.

Fix this by refactoring the error handling code of jfs_mount. To be
specific, modify the lable name and free ipaimap2 when the above error
ocurrs.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/jfs/jfs_mount.c | 51 ++++++++++++++++++++--------------------------
 1 file changed, 22 insertions(+), 29 deletions(-)

diff --git a/fs/jfs/jfs_mount.c b/fs/jfs/jfs_mount.c
index 5d7d7170c03c0..aa4ff7bcaff23 100644
--- a/fs/jfs/jfs_mount.c
+++ b/fs/jfs/jfs_mount.c
@@ -81,14 +81,14 @@ int jfs_mount(struct super_block *sb)
 	 * (initialize mount inode from the superblock)
 	 */
 	if ((rc = chkSuper(sb))) {
-		goto errout20;
+		goto out;
 	}
 
 	ipaimap = diReadSpecial(sb, AGGREGATE_I, 0);
 	if (ipaimap == NULL) {
 		jfs_err("jfs_mount: Failed to read AGGREGATE_I");
 		rc = -EIO;
-		goto errout20;
+		goto out;
 	}
 	sbi->ipaimap = ipaimap;
 
@@ -99,7 +99,7 @@ int jfs_mount(struct super_block *sb)
 	 */
 	if ((rc = diMount(ipaimap))) {
 		jfs_err("jfs_mount: diMount(ipaimap) failed w/rc = %d", rc);
-		goto errout21;
+		goto err_ipaimap;
 	}
 
 	/*
@@ -108,7 +108,7 @@ int jfs_mount(struct super_block *sb)
 	ipbmap = diReadSpecial(sb, BMAP_I, 0);
 	if (ipbmap == NULL) {
 		rc = -EIO;
-		goto errout22;
+		goto err_umount_ipaimap;
 	}
 
 	jfs_info("jfs_mount: ipbmap:0x%p", ipbmap);
@@ -120,7 +120,7 @@ int jfs_mount(struct super_block *sb)
 	 */
 	if ((rc = dbMount(ipbmap))) {
 		jfs_err("jfs_mount: dbMount failed w/rc = %d", rc);
-		goto errout22;
+		goto err_ipbmap;
 	}
 
 	/*
@@ -139,7 +139,7 @@ int jfs_mount(struct super_block *sb)
 		if (!ipaimap2) {
 			jfs_err("jfs_mount: Failed to read AGGREGATE_I");
 			rc = -EIO;
-			goto errout35;
+			goto err_umount_ipbmap;
 		}
 		sbi->ipaimap2 = ipaimap2;
 
@@ -151,7 +151,7 @@ int jfs_mount(struct super_block *sb)
 		if ((rc = diMount(ipaimap2))) {
 			jfs_err("jfs_mount: diMount(ipaimap2) failed, rc = %d",
 				rc);
-			goto errout35;
+			goto err_ipaimap2;
 		}
 	} else
 		/* Secondary aggregate inode table is not valid */
@@ -168,7 +168,7 @@ int jfs_mount(struct super_block *sb)
 		jfs_err("jfs_mount: Failed to read FILESYSTEM_I");
 		/* open fileset secondary inode allocation map */
 		rc = -EIO;
-		goto errout40;
+		goto err_umount_ipaimap2;
 	}
 	jfs_info("jfs_mount: ipimap:0x%p", ipimap);
 
@@ -178,41 +178,34 @@ int jfs_mount(struct super_block *sb)
 	/* initialize fileset inode allocation map */
 	if ((rc = diMount(ipimap))) {
 		jfs_err("jfs_mount: diMount failed w/rc = %d", rc);
-		goto errout41;
+		goto err_ipimap;
 	}
 
-	goto out;
+	return rc;
 
 	/*
 	 *	unwind on error
 	 */
-      errout41:		/* close fileset inode allocation map inode */
+err_ipimap:
+	/* close fileset inode allocation map inode */
 	diFreeSpecial(ipimap);
-
-      errout40:		/* fileset closed */
-
+err_umount_ipaimap2:
 	/* close secondary aggregate inode allocation map */
-	if (ipaimap2) {
+	if (ipaimap2)
 		diUnmount(ipaimap2, 1);
+err_ipaimap2:
+	/* close aggregate inodes */
+	if (ipaimap2)
 		diFreeSpecial(ipaimap2);
-	}
-
-      errout35:
-
-	/* close aggregate block allocation map */
+err_umount_ipbmap:	/* close aggregate block allocation map */
 	dbUnmount(ipbmap, 1);
+err_ipbmap:		/* close aggregate inodes */
 	diFreeSpecial(ipbmap);
-
-      errout22:		/* close aggregate inode allocation map */
-
+err_umount_ipaimap:	/* close aggregate inode allocation map */
 	diUnmount(ipaimap, 1);
-
-      errout21:		/* close aggregate inodes */
+err_ipaimap:		/* close aggregate inodes */
 	diFreeSpecial(ipaimap);
-      errout20:		/* aggregate closed */
-
-      out:
-
+out:
 	if (rc)
 		jfs_err("Mount JFS Failure: %d", rc);
 
-- 
GitLab


From d70247b752f7ae233b966ad3e3be3d72b531abef Mon Sep 17 00:00:00 2001
From: Stephan Gerhold <stephan@gerhold.net>
Date: Mon, 16 Aug 2021 20:18:10 +0200
Subject: [PATCH 1325/4878] arm64: dts: qcom: msm8916: Fix Secondary MI2S bit
 clock

[ Upstream commit 8199a0b31e76d158ac14841e7119890461f8c595 ]

At the moment, playing audio on Secondary MI2S will just end up getting
stuck, without actually playing any audio. This happens because the wrong
bit clock is configured when playing audio on Secondary MI2S.

The PRI_I2S_CLK (better name: SPKR_I2S_CLK) is used by the SPKR audio mux
block that provides both Primary and Secondary MI2S.

The SEC_I2S_CLK (better name: MIC_I2S_CLK) is used by the MIC audio mux
block that provides Tertiary MI2S. Quaternary MI2S is also part of the
MIC audio mux but has its own clock (AUX_I2S_CLK).

This means that (quite confusingly) the SEC_I2S_CLK is not actually
used for Secondary MI2S as the name would suggest. Secondary MI2S
needs to have the same clock as Primary MI2S configured.

Fix the clock list for the lpass node in the device tree and add
a comment to clarify this confusing naming. With these changes,
audio can be played correctly on Secondary MI2S.

Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Fixes: 3761a3618f55 ("arm64: dts: qcom: add lpass node")
Tested-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210816181810.2242-1-stephan@gerhold.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index 0e34ed48b9fae..b1ffc056eea0b 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -1322,11 +1322,17 @@
 		lpass: audio-controller@7708000 {
 			status = "disabled";
 			compatible = "qcom,lpass-cpu-apq8016";
+
+			/*
+			 * Note: Unlike the name would suggest, the SEC_I2S_CLK
+			 * is actually only used by Tertiary MI2S while
+			 * Primary/Secondary MI2S both use the PRI_I2S_CLK.
+			 */
 			clocks = <&gcc GCC_ULTAUDIO_AHBFABRIC_IXFABRIC_CLK>,
 				 <&gcc GCC_ULTAUDIO_PCNOC_MPORT_CLK>,
 				 <&gcc GCC_ULTAUDIO_PCNOC_SWAY_CLK>,
 				 <&gcc GCC_ULTAUDIO_LPAIF_PRI_I2S_CLK>,
-				 <&gcc GCC_ULTAUDIO_LPAIF_SEC_I2S_CLK>,
+				 <&gcc GCC_ULTAUDIO_LPAIF_PRI_I2S_CLK>,
 				 <&gcc GCC_ULTAUDIO_LPAIF_SEC_I2S_CLK>,
 				 <&gcc GCC_ULTAUDIO_LPAIF_AUX_I2S_CLK>;
 
-- 
GitLab


From d833ddddec5b1ff44f2c241bf92361e87b228f53 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 24 Sep 2021 08:50:23 +0200
Subject: [PATCH 1326/4878] arm64: dts: renesas: beacon: Fix Ethernet PHY mode

[ Upstream commit 59a8bda062f8646d99ff8c4956adf37dee1cb75e ]

While networking works fine in RGMII mode when using the Linux generic
PHY driver, it fails when using the Atheros PHY driver.
Fix this by correcting the Ethernet PHY mode to RGMII-RXID, which works
fine with both drivers.

Fixes: a5200e63af57d05e ("arm64: dts: renesas: rzg2: Convert EtherAVB to explicit delay handling")
Reported-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2a4c15b2df23bb63f15abf9dfb88860477f4f523.1632465965.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
index 3c73dfc430afc..929c7910c68df 100644
--- a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
@@ -54,6 +54,7 @@
 &avb {
 	pinctrl-0 = <&avb_pins>;
 	pinctrl-names = "default";
+	phy-mode = "rgmii-rxid";
 	phy-handle = <&phy0>;
 	rx-internal-delay-ps = <1800>;
 	tx-internal-delay-ps = <2000>;
-- 
GitLab


From 1db71de28bfc7536ea5de54ba40fb3f63b804035 Mon Sep 17 00:00:00 2001
From: Stephan Gerhold <stephan@gerhold.net>
Date: Tue, 28 Sep 2021 13:29:43 +0200
Subject: [PATCH 1327/4878] arm64: dts: qcom: pm8916: Remove wrong reg-names
 for rtc@6000

[ Upstream commit 483de2b44cd3a168458f8f9ff237e78a434729bc ]

While removing the size from the "reg" properties in pm8916.dtsi,
commit bd6429e81010 ("ARM64: dts: qcom: Remove size elements from
pmic reg properties") mistakenly also removed the second register
address for the rtc@6000 device. That one did not represent the size
of the register region but actually the address of the second "alarm"
register region of the rtc@6000 device.

Now there are "reg-names" for two "reg" elements, but there is actually
only one "reg" listed.

Since the DT schema for "qcom,pm8941-rtc" only expects one "reg"
element anyway, just drop the "reg-names" entirely to fix this.

Fixes: bd6429e81010 ("ARM64: dts: qcom: Remove size elements from pmic reg properties")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210928112945.25310-1-stephan@gerhold.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/pm8916.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/pm8916.dtsi b/arch/arm64/boot/dts/qcom/pm8916.dtsi
index f931cb0de231f..42180f1b5dbbb 100644
--- a/arch/arm64/boot/dts/qcom/pm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8916.dtsi
@@ -86,7 +86,6 @@
 		rtc@6000 {
 			compatible = "qcom,pm8941-rtc";
 			reg = <0x6000>;
-			reg-names = "rtc", "alarm";
 			interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
 		};
 
-- 
GitLab


From 5972e974ebbb0b603eed3b876192e597808d7c94 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 29 Sep 2021 09:29:33 +0200
Subject: [PATCH 1328/4878] ALSA: hda: Reduce udelay() at SKL+ position
 reporting

[ Upstream commit 46243b85b0ec5d2cee7545e5ce18c015ce91957e ]

The position reporting on Intel Skylake and later chips via
azx_get_pos_skl() contains a udelay(20) call for the capture streams.
A call for this alone doesn't sound too harmful.  However, as the
pointer PCM ops is one of the hottest path in the PCM operations --
especially for the timer-scheduled operations like PulseAudio -- such
a delay hogs CPU usage significantly in the total performance.

The code there was taken from the original code in ASoC SST Skylake
driver blindly.  The udelay() is a workaround for the case where the
reported position is behind the period boundary at the timing
triggered from interrupts; applications often expect that the full
data is available for the whole period when returned (and also that's
the definition of the ALSA PCM period).

OTOH, HD-audio (legacy) driver has already some workarounds for the
delayed position reporting due to its relatively large FIFO, such as
the BDL position adjustment and the delayed period-elapsed call in the
work.  That said, the udelay() is almost superfluous for HD-audio
driver unlike SST, and we can drop the udelay().

Though, the current code doesn't guarantee the full period readiness
as mentioned in the above, but rather it checks the wallclock and
detects the unexpected jump.  That's one missing piece, and the drop
of udelay() needs a bit more sanity checks for the delayed handling.

This patch implements those: the drop of udelay() call in
azx_get_pos_skl() and the more proper check of hwptr in
azx_position_ok().  The latter change is applied only for the case
where the stream is running in the normal mode without
no_period_wakeup flag.  When no_period_wakeup is set, it essentially
ignores the period handling and rather concentrates only on the
current position; which implies that we don't need to care about the
period boundary at all.

Fixes: f87e7f25893d ("ALSA: hda - Improved position reporting on SKL+")
Reported-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210929072934.6809-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_intel.c | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 1bae0746e7266..a8eae31e47efb 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -672,13 +672,17 @@ static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
  * the update-IRQ timing.  The IRQ is issued before actually the
  * data is processed.  So, we need to process it afterwords in a
  * workqueue.
+ *
+ * Returns 1 if OK to proceed, 0 for delay handling, -1 for skipping update
  */
 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 {
 	struct snd_pcm_substream *substream = azx_dev->core.substream;
+	struct snd_pcm_runtime *runtime = substream->runtime;
 	int stream = substream->stream;
 	u32 wallclk;
 	unsigned int pos;
+	snd_pcm_uframes_t hwptr, target;
 
 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
@@ -715,6 +719,24 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 		/* NG - it's below the first next period boundary */
 		return chip->bdl_pos_adj ? 0 : -1;
 	azx_dev->core.start_wallclk += wallclk;
+
+	if (azx_dev->core.no_period_wakeup)
+		return 1; /* OK, no need to check period boundary */
+
+	if (runtime->hw_ptr_base != runtime->hw_ptr_interrupt)
+		return 1; /* OK, already in hwptr updating process */
+
+	/* check whether the period gets really elapsed */
+	pos = bytes_to_frames(runtime, pos);
+	hwptr = runtime->hw_ptr_base + pos;
+	if (hwptr < runtime->status->hw_ptr)
+		hwptr += runtime->buffer_size;
+	target = runtime->hw_ptr_interrupt + runtime->period_size;
+	if (hwptr < target) {
+		/* too early wakeup, process it later */
+		return chip->bdl_pos_adj ? 0 : -1;
+	}
+
 	return 1; /* OK, it's fine */
 }
 
@@ -909,11 +931,7 @@ static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		return azx_skl_get_dpib_pos(chip, azx_dev);
 
-	/* For capture, we need to read posbuf, but it requires a delay
-	 * for the possible boundary overlap; the read of DPIB fetches the
-	 * actual posbuf
-	 */
-	udelay(20);
+	/* read of DPIB fetches the actual posbuf */
 	azx_skl_get_dpib_pos(chip, azx_dev);
 	return azx_get_pos_posbuf(chip, azx_dev);
 }
-- 
GitLab


From 23e8f775d962f4a859b1651ec9792cc8383e6c72 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Wed, 23 Jun 2021 16:46:00 +0300
Subject: [PATCH 1329/4878] ALSA: hda: Release controller display power during
 shutdown/reboot

[ Upstream commit 472e18f63c425dda97b888f40f858ea54e3efc17 ]

Make sure the HDA driver's display power reference is released during
shutdown/reboot.

During the shutdown/reboot sequence the pci device core calls the
pm_runtime_resume handler for all devices before calling the driver's
shutdown callback and so the HDA driver's runtime resume callback will
acquire a display power reference (on HSW/BDW). This triggers a power
reference held WARN on HSW/BDW in the i915 driver's subsequent shutdown
handler, which expects all display power references to be released by
that time.

Since the HDA controller is stopped in the shutdown handler in any case,
let's follow here the same sequence as the one during runtime suspend.
This will also reset the HDA link and drop the display power reference,
getting rid of the above WARN.

Tested on HSW.

v2:
- Fix the build for CONFIG_PM=n (Takashi)
- s/__azx_runtime_suspend/azx_shutdown_chip/

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/3618
References: https://lore.kernel.org/lkml/cea1f9a-52e0-b83-593d-52997fe1aaf6@er-systems.de
Reported-and-tested-by: Thomas Voegtle <tv@lio96.de>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20210623134601.2128663-1-imre.deak@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_intel.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index a8eae31e47efb..e31eafe73661f 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -936,6 +936,14 @@ static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
 	return azx_get_pos_posbuf(chip, azx_dev);
 }
 
+static void azx_shutdown_chip(struct azx *chip)
+{
+	azx_stop_chip(chip);
+	azx_enter_link_reset(chip);
+	azx_clear_irq_pending(chip);
+	display_power(chip, false);
+}
+
 #ifdef CONFIG_PM
 static DEFINE_MUTEX(card_list_lock);
 static LIST_HEAD(card_list);
@@ -995,14 +1003,6 @@ static bool azx_is_pm_ready(struct snd_card *card)
 	return true;
 }
 
-static void __azx_runtime_suspend(struct azx *chip)
-{
-	azx_stop_chip(chip);
-	azx_enter_link_reset(chip);
-	azx_clear_irq_pending(chip);
-	display_power(chip, false);
-}
-
 static void __azx_runtime_resume(struct azx *chip)
 {
 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
@@ -1081,7 +1081,7 @@ static int azx_suspend(struct device *dev)
 
 	chip = card->private_data;
 	bus = azx_bus(chip);
-	__azx_runtime_suspend(chip);
+	azx_shutdown_chip(chip);
 	if (bus->irq >= 0) {
 		free_irq(bus->irq, chip);
 		bus->irq = -1;
@@ -1160,7 +1160,7 @@ static int azx_runtime_suspend(struct device *dev)
 	/* enable controller wake up event */
 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) | STATESTS_INT_MASK);
 
-	__azx_runtime_suspend(chip);
+	azx_shutdown_chip(chip);
 	trace_azx_runtime_suspend(chip);
 	return 0;
 }
@@ -2461,7 +2461,7 @@ static void azx_shutdown(struct pci_dev *pci)
 		return;
 	chip = card->private_data;
 	if (chip && chip->running)
-		azx_stop_chip(chip);
+		azx_shutdown_chip(chip);
 }
 
 /* PCI IDs */
-- 
GitLab


From c550c7c9ae9185d9bc30e29a2b85721933bb0bdf Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Mon, 16 Aug 2021 20:42:59 +0300
Subject: [PATCH 1330/4878] ALSA: hda: Fix hang during shutdown due to link
 reset

[ Upstream commit 0165c4e19f6ec76b535de090e4bd145c73810c51 ]

During system shutdown codecs may be still active, and resetting the
controller->codec HW link in this state - based on the bug reporter's
tests - leads to the shutdown sequence to get stuck. This happens at
least on the reporter's KBL system with an ALC662 codec.

For now fix the issue by skipping the link reset step.

Fixes: 472e18f63c42 ("ALSA: hda: Release controller display power during shutdown/reboot")
References: https://bugzilla.kernel.org/show_bug.cgi?id=214045
References: https://gitlab.freedesktop.org/drm/intel/-/issues/3618#note_1024665
Reported-and-tested-by: youling257@gmail.com
Cc: youling257@gmail.com
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20210816174259.2759103-1-imre.deak@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_intel.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index e31eafe73661f..a0955e17adee9 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -936,10 +936,11 @@ static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
 	return azx_get_pos_posbuf(chip, azx_dev);
 }
 
-static void azx_shutdown_chip(struct azx *chip)
+static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
 {
 	azx_stop_chip(chip);
-	azx_enter_link_reset(chip);
+	if (!skip_link_reset)
+		azx_enter_link_reset(chip);
 	azx_clear_irq_pending(chip);
 	display_power(chip, false);
 }
@@ -948,6 +949,11 @@ static void azx_shutdown_chip(struct azx *chip)
 static DEFINE_MUTEX(card_list_lock);
 static LIST_HEAD(card_list);
 
+static void azx_shutdown_chip(struct azx *chip)
+{
+	__azx_shutdown_chip(chip, false);
+}
+
 static void azx_add_card_list(struct azx *chip)
 {
 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
@@ -2461,7 +2467,7 @@ static void azx_shutdown(struct pci_dev *pci)
 		return;
 	chip = card->private_data;
 	if (chip && chip->running)
-		azx_shutdown_chip(chip);
+		__azx_shutdown_chip(chip, true);
 }
 
 /* PCI IDs */
-- 
GitLab


From 3fe8d239e35b0aaf917b099bbe2ace64692f8f02 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 29 Sep 2021 09:29:34 +0200
Subject: [PATCH 1331/4878] ALSA: hda: Use position buffer for SKL+ again

[ Upstream commit c4ca3871e21fa085096316f5f8d9975cf3dfde1d ]

The commit f87e7f25893d ("ALSA: hda - Improved position reporting on
SKL+") changed the PCM position report for SKL+ chips to use DPIB, but
according to Pierre, DPIB is no best choice for the accurate position
reports and it often reports too early.  The recommended method is
rather the classical position buffer.

This patch makes the PCM position reporting on SKL+ back to the
position buffer again.

Fixes: f87e7f25893d ("ALSA: hda - Improved position reporting on SKL+")
Suggested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210929072934.6809-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_intel.c | 23 +----------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index a0955e17adee9..64115a796af06 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -915,27 +915,6 @@ static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
 	return substream->runtime->delay;
 }
 
-static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
-					 struct azx_dev *azx_dev)
-{
-	return _snd_hdac_chip_readl(azx_bus(chip),
-				    AZX_REG_VS_SDXDPIB_XBASE +
-				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
-				     azx_dev->core.index));
-}
-
-/* get the current DMA position with correction on SKL+ chips */
-static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
-{
-	/* DPIB register gives a more accurate position for playback */
-	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		return azx_skl_get_dpib_pos(chip, azx_dev);
-
-	/* read of DPIB fetches the actual posbuf */
-	azx_skl_get_dpib_pos(chip, azx_dev);
-	return azx_get_pos_posbuf(chip, azx_dev);
-}
-
 static void __azx_shutdown_chip(struct azx *chip, bool skip_link_reset)
 {
 	azx_stop_chip(chip);
@@ -1632,7 +1611,7 @@ static void assign_position_fix(struct azx *chip, int fix)
 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
 		[POS_FIX_VIACOMBO] = azx_via_get_position,
 		[POS_FIX_COMBO] = azx_get_pos_lpib,
-		[POS_FIX_SKL] = azx_get_pos_skl,
+		[POS_FIX_SKL] = azx_get_pos_posbuf,
 		[POS_FIX_FIFO] = azx_get_pos_fifo,
 	};
 
-- 
GitLab


From 4438a7457063ea81a2c4d4ffefc38fdd79572535 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 7 Sep 2021 11:53:32 +0100
Subject: [PATCH 1332/4878] soundwire: debugfs: use controller id and link_id
 for debugfs

[ Upstream commit 75eac387a2539aa6c6bbee3affa23435f2096396 ]

link_id can be zero and if we have multiple controller instances
in a system like Qualcomm debugfs will end-up with duplicate namespace
resulting in incorrect debugfs entries.

Using bus-id and link-id combination should give a unique debugfs directory
entry and should fix below warning too.
"debugfs: Directory 'master-0' with parent 'soundwire' already present!"

Fixes: bf03473d5bcc ("soundwire: add debugfs support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210907105332.1257-1-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soundwire/debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soundwire/debugfs.c b/drivers/soundwire/debugfs.c
index b6cad0d59b7b9..49900cd207bc7 100644
--- a/drivers/soundwire/debugfs.c
+++ b/drivers/soundwire/debugfs.c
@@ -19,7 +19,7 @@ void sdw_bus_debugfs_init(struct sdw_bus *bus)
 		return;
 
 	/* create the debugfs master-N */
-	snprintf(name, sizeof(name), "master-%d", bus->link_id);
+	snprintf(name, sizeof(name), "master-%d-%d", bus->id, bus->link_id);
 	bus->debugfs = debugfs_create_dir(name, sdw_debugfs_root);
 }
 
-- 
GitLab


From ddb13ddacc605e071b6d006b0cda8365daf0c296 Mon Sep 17 00:00:00 2001
From: Igor Pylypiv <ipylypiv@google.com>
Date: Tue, 28 Sep 2021 19:58:47 -0700
Subject: [PATCH 1333/4878] scsi: pm80xx: Fix misleading log statement in
 pm8001_mpi_get_nvmd_resp()

[ Upstream commit 4084a7235d38311a77c86ba69ba849bd787db87b ]

pm8001_mpi_get_nvmd_resp() handles a GET_NVMD_DATA response, not a
SET_NVMD_DATA response, as the log statement implies.

Fixes: 1f889b58716a ("scsi: pm80xx: Fix pm8001_mpi_get_nvmd_resp() race condition")
Link: https://lore.kernel.org/r/20210929025847.646999-1-ipylypiv@google.com
Reviewed-by: Changyuan Lyu <changyuanl@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 2114d2dd3501a..5d751628a6340 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3107,7 +3107,7 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	 * fw_control_context->usrAddr
 	 */
 	complete(pm8001_ha->nvmd_completion);
-	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
+	pm8001_dbg(pm8001_ha, MSG, "Get nvmd data complete!\n");
 	ccb->task = NULL;
 	ccb->ccb_tag = 0xFFFFFFFF;
 	pm8001_tag_free(pm8001_ha, tag);
-- 
GitLab


From e1959450b77a2a9226a818993ea55700872c134b Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Thu, 30 Sep 2021 16:57:14 +0800
Subject: [PATCH 1334/4878] driver core: Fix possible memory leak in
 device_link_add()

[ Upstream commit df0a18149474c7e6b21f6367fbc6bc8d0f192444 ]

I got memory leak as follows:

unreferenced object 0xffff88801f0b2200 (size 64):
  comm "i2c-lis2hh12-21", pid 5455, jiffies 4294944606 (age 15.224s)
  hex dump (first 32 bytes):
    72 65 67 75 6c 61 74 6f 72 3a 72 65 67 75 6c 61  regulator:regula
    74 6f 72 2e 30 2d 2d 69 32 63 3a 31 2d 30 30 31  tor.0--i2c:1-001
  backtrace:
    [<00000000bf5b0c3b>] __kmalloc_track_caller+0x19f/0x3a0
    [<0000000050da42d9>] kvasprintf+0xb5/0x150
    [<000000004bbbed13>] kvasprintf_const+0x60/0x190
    [<00000000cdac7480>] kobject_set_name_vargs+0x56/0x150
    [<00000000bf83f8e8>] dev_set_name+0xc0/0x100
    [<00000000cc1cf7e3>] device_link_add+0x6b4/0x17c0
    [<000000009db9faed>] _regulator_get+0x297/0x680
    [<00000000845e7f2b>] _devm_regulator_get+0x5b/0xe0
    [<000000003958ee25>] st_sensors_power_enable+0x71/0x1b0 [st_sensors]
    [<000000005f450f52>] st_accel_i2c_probe+0xd9/0x150 [st_accel_i2c]
    [<00000000b5f2ab33>] i2c_device_probe+0x4d8/0xbe0
    [<0000000070fb977b>] really_probe+0x299/0xc30
    [<0000000088e226ce>] __driver_probe_device+0x357/0x500
    [<00000000c21dda32>] driver_probe_device+0x4e/0x140
    [<000000004e650441>] __device_attach_driver+0x257/0x340
    [<00000000cf1891b8>] bus_for_each_drv+0x166/0x1e0

When device_register() returns an error, the name allocated in dev_set_name()
will be leaked, the put_device() should be used instead of kfree() to give up
the device reference, then the name will be freed in kobject_cleanup() and the
references of consumer and supplier will be decreased in device_link_release_fn().

Fixes: 287905e68dd2 ("driver core: Expose device link details in sysfs")
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210930085714.2057460-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 2bc4db5ffe445..389d13616d1df 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -668,9 +668,7 @@ struct device_link *device_link_add(struct device *consumer,
 		     dev_bus_name(supplier), dev_name(supplier),
 		     dev_bus_name(consumer), dev_name(consumer));
 	if (device_register(&link->link_dev)) {
-		put_device(consumer);
-		put_device(supplier);
-		kfree(link);
+		put_device(&link->link_dev);
 		link = NULL;
 		goto out;
 	}
-- 
GitLab


From 8b6124d9245c54d3472d808bedc8a477675c8179 Mon Sep 17 00:00:00 2001
From: Andreas Kemnade <andreas@kemnade.info>
Date: Fri, 1 Oct 2021 09:34:15 +0200
Subject: [PATCH 1335/4878] arm: dts: omap3-gta04a4: accelerometer irq fix

[ Upstream commit 884ea75d79a36faf3731ad9d6b9c29f58697638d ]

Fix typo in pinctrl. It did only work because the bootloader
seems to have initialized it.

Fixes: ee327111953b ("ARM: dts: omap3-gta04: Define and use bma180 irq pin")
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap3-gta04.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index 7b8c18e6605e4..80c9e5e34136a 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -515,7 +515,7 @@
 		compatible = "bosch,bma180";
 		reg = <0x41>;
 		pinctrl-names = "default";
-		pintcrl-0 = <&bma180_pins>;
+		pinctrl-0 = <&bma180_pins>;
 		interrupt-parent = <&gpio4>;
 		interrupts = <19 IRQ_TYPE_LEVEL_HIGH>; /* GPIO_115 */
 	};
-- 
GitLab


From 9a2244200908d20310750fbfd04dc6b7997c4080 Mon Sep 17 00:00:00 2001
From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Date: Wed, 6 Oct 2021 13:40:41 +0300
Subject: [PATCH 1336/4878] ASoC: SOF: topology: do not power down primary core
 during topology removal

[ Upstream commit ec626334eaffe101df9ed79e161eba95124e64ad ]

When removing the topology components, do not power down
the primary core. Doing so will result in an IPC timeout
when the SOF PCI device runtime suspends.

Fixes: 0dcdf84289fb ("ASoC: SOF: add a "core" parameter to widget loading functions")

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20211006104041.27183-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/topology.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 69313fbdb636a..b6327c30c2b5a 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -2590,6 +2590,15 @@ static int sof_widget_unload(struct snd_soc_component *scomp,
 
 		/* power down the pipeline schedule core */
 		pipeline = swidget->private;
+
+		/*
+		 * Runtime PM should still function normally if topology loading fails and
+		 * it's components are unloaded. Do not power down the primary core so that the
+		 * CTX_SAVE IPC can succeed during runtime suspend.
+		 */
+		if (pipeline->core == SOF_DSP_PRIMARY_CORE)
+			break;
+
 		ret = snd_sof_dsp_core_power_down(sdev, 1 << pipeline->core);
 		if (ret < 0)
 			dev_err(scomp->dev, "error: powering down pipeline schedule core %d\n",
-- 
GitLab


From d3833d3c569aae1395ac21665644b587e7a92ba0 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sun, 27 Jun 2021 17:54:31 +0200
Subject: [PATCH 1337/4878] soc/tegra: Fix an error handling path in
 tegra_powergate_power_up()

[ Upstream commit 986b5094708e508baa452a23ffe809870934a7df ]

If an error occurs after a successful tegra_powergate_enable_clocks()
call, it must be undone by a tegra_powergate_disable_clocks() call, as
already done in the below and above error handling paths of this function.

Update the 'goto' to branch at the correct place of the error handling
path.

Fixes: a38045121bf4 ("soc/tegra: pmc: Add generic PM domain support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/tegra/pmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 0118bd986f902..857354a69c39d 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -705,7 +705,7 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg,
 
 	err = reset_control_deassert(pg->reset);
 	if (err)
-		goto powergate_off;
+		goto disable_clks;
 
 	usleep_range(10, 20);
 
-- 
GitLab


From 20cc0fa1d030aa49e268a23e71c7f1110f3060fa Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Sat, 25 Sep 2021 23:14:32 +0800
Subject: [PATCH 1338/4878] memory: fsl_ifc: fix leak of irq and nand_irq in
 fsl_ifc_ctrl_probe

[ Upstream commit 4ed2f3545c2e5acfbccd7f85fea5b1a82e9862d7 ]

The error handling code of fsl_ifc_ctrl_probe is problematic. When
fsl_ifc_ctrl_init fails or request_irq of fsl_ifc_ctrl_dev->irq fails,
it forgets to free the irq and nand_irq. Meanwhile, if request_irq of
fsl_ifc_ctrl_dev->nand_irq fails, it will still free nand_irq even if
the request_irq is not successful.

Fix this by refactoring the error handling code.

Fixes: d2ae2e20fbdd ("driver/memory:Move Freescale IFC driver to a common driver")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20210925151434.8170-1-mudongliangabcd@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memory/fsl_ifc.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/memory/fsl_ifc.c b/drivers/memory/fsl_ifc.c
index d062c2f8250f4..75a8c38df9394 100644
--- a/drivers/memory/fsl_ifc.c
+++ b/drivers/memory/fsl_ifc.c
@@ -263,7 +263,7 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
 
 	ret = fsl_ifc_ctrl_init(fsl_ifc_ctrl_dev);
 	if (ret < 0)
-		goto err;
+		goto err_unmap_nandirq;
 
 	init_waitqueue_head(&fsl_ifc_ctrl_dev->nand_wait);
 
@@ -272,7 +272,7 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
 	if (ret != 0) {
 		dev_err(&dev->dev, "failed to install irq (%d)\n",
 			fsl_ifc_ctrl_dev->irq);
-		goto err_irq;
+		goto err_unmap_nandirq;
 	}
 
 	if (fsl_ifc_ctrl_dev->nand_irq) {
@@ -281,17 +281,16 @@ static int fsl_ifc_ctrl_probe(struct platform_device *dev)
 		if (ret != 0) {
 			dev_err(&dev->dev, "failed to install irq (%d)\n",
 				fsl_ifc_ctrl_dev->nand_irq);
-			goto err_nandirq;
+			goto err_free_irq;
 		}
 	}
 
 	return 0;
 
-err_nandirq:
-	free_irq(fsl_ifc_ctrl_dev->nand_irq, fsl_ifc_ctrl_dev);
-	irq_dispose_mapping(fsl_ifc_ctrl_dev->nand_irq);
-err_irq:
+err_free_irq:
 	free_irq(fsl_ifc_ctrl_dev->irq, fsl_ifc_ctrl_dev);
+err_unmap_nandirq:
+	irq_dispose_mapping(fsl_ifc_ctrl_dev->nand_irq);
 	irq_dispose_mapping(fsl_ifc_ctrl_dev->irq);
 err:
 	iounmap(fsl_ifc_ctrl_dev->gregs);
-- 
GitLab


From fb24243e6d7f2db95bd31d6a76e5dbe6e58425fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <clement.leger@bootlin.com>
Date: Mon, 13 Sep 2021 10:26:33 +0200
Subject: [PATCH 1339/4878] clk: at91: check pmc node status before registering
 syscore ops
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c405f5c15e9f6094f2fa1658e73e56f3058e2122 ]

Currently, at91 pmc driver always register the syscore_ops whatever
the status of the pmc node that has been found. When set as secure
and disabled, the pmc should not be accessed or this will generate
abort exceptions.
To avoid this, add a check on node availability before registering
the syscore operations.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Link: https://lore.kernel.org/r/20210913082633.110168-1-clement.leger@bootlin.com
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Fixes: b3b02eac33ed ("clk: at91: Add sama5d2 suspend/resume")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/at91/pmc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index 20ee9dccee787..b40035b011d0a 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -267,6 +267,11 @@ static int __init pmc_register_ops(void)
 	if (!np)
 		return -ENODEV;
 
+	if (!of_device_is_available(np)) {
+		of_node_put(np);
+		return -ENODEV;
+	}
+
 	pmcreg = device_node_to_regmap(np);
 	of_node_put(np);
 	if (IS_ERR(pmcreg))
-- 
GitLab


From 67074c63cd670878f81a50c8cc386e176ab8647a Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Wed, 15 Sep 2021 15:34:35 +0200
Subject: [PATCH 1340/4878] video: fbdev: chipsfb: use memset_io() instead of
 memset()

[ Upstream commit f2719b26ae27282c145202ffd656d5ff1fe737cc ]

While investigating a lockup at startup on Powerbook 3400C, it was
identified that the fbdev driver generates alignment exception at
startup:

  --- interrupt: 600 at memset+0x60/0xc0
  NIP:  c0021414 LR: c03fc49c CTR: 00007fff
  REGS: ca021c10 TRAP: 0600   Tainted: G        W          (5.14.2-pmac-00727-g12a41fa69492)
  MSR:  00009032 <EE,ME,IR,DR,RI>  CR: 44008442  XER: 20000100
  DAR: cab80020 DSISR: 00017c07
  GPR00: 00000007 ca021cd0 c14412e0 cab80000 00000000 00100000 cab8001c 00000004
  GPR08: 00100000 00007fff 00000000 00000000 84008442 00000000 c0006fb4 00000000
  GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00100000
  GPR24: 00000000 81800000 00000320 c15fa400 c14d1878 00000000 c14d1800 c094e19c
  NIP [c0021414] memset+0x60/0xc0
  LR [c03fc49c] chipsfb_pci_init+0x160/0x580
  --- interrupt: 600
  [ca021cd0] [c03fc46c] chipsfb_pci_init+0x130/0x580 (unreliable)
  [ca021d20] [c03a3a70] pci_device_probe+0xf8/0x1b8
  [ca021d50] [c043d584] really_probe.part.0+0xac/0x388
  [ca021d70] [c043d914] __driver_probe_device+0xb4/0x170
  [ca021d90] [c043da18] driver_probe_device+0x48/0x144
  [ca021dc0] [c043e318] __driver_attach+0x11c/0x1c4
  [ca021de0] [c043ad30] bus_for_each_dev+0x88/0xf0
  [ca021e10] [c043c724] bus_add_driver+0x190/0x22c
  [ca021e40] [c043ee94] driver_register+0x9c/0x170
  [ca021e60] [c0006c28] do_one_initcall+0x54/0x1ec
  [ca021ed0] [c08246e4] kernel_init_freeable+0x1c0/0x270
  [ca021f10] [c0006fdc] kernel_init+0x28/0x11c
  [ca021f30] [c0017148] ret_from_kernel_thread+0x14/0x1c
  Instruction dump:
  7d4601a4 39490777 7d4701a4 39490888 7d4801a4 39490999 7d4901a4 39290aaa
  7d2a01a4 4c00012c 4bfffe88 0fe00000 <4bfffe80> 9421fff0 38210010 48001970

This is due to 'dcbz' instruction being used on non-cached memory.
'dcbz' instruction is used by memset() to zeroize a complete
cacheline at once, and memset() is not expected to be used on non
cached memory.

When performing a 'sparse' check on fbdev driver, it also appears
that the use of memset() is unexpected:

  drivers/video/fbdev/chipsfb.c:334:17: warning: incorrect type in argument 1 (different address spaces)
  drivers/video/fbdev/chipsfb.c:334:17:    expected void *
  drivers/video/fbdev/chipsfb.c:334:17:    got char [noderef] __iomem *screen_base
  drivers/video/fbdev/chipsfb.c:334:15: warning: memset with byte count of 1048576

Use fb_memset() instead of memset(). fb_memset() is defined as
memset_io() for powerpc.

Fixes: 8c8709334cec ("[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK")
Reported-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/884a54f1e5cb774c1d9b4db780209bee5d4f6718.1631712563.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/chipsfb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/chipsfb.c b/drivers/video/fbdev/chipsfb.c
index 998067b701fa0..393894af26f84 100644
--- a/drivers/video/fbdev/chipsfb.c
+++ b/drivers/video/fbdev/chipsfb.c
@@ -331,7 +331,7 @@ static const struct fb_var_screeninfo chipsfb_var = {
 
 static void init_chips(struct fb_info *p, unsigned long addr)
 {
-	memset(p->screen_base, 0, 0x100000);
+	fb_memset(p->screen_base, 0, 0x100000);
 
 	p->fix = chipsfb_fix;
 	p->fix.smem_start = addr;
-- 
GitLab


From 61c5d9fa5671be8b55f7a2f04a29759d9ddaa693 Mon Sep 17 00:00:00 2001
From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Date: Wed, 2 Dec 2020 10:34:53 +0530
Subject: [PATCH 1341/4878] powerpc: Refactor is_kvm_guest() declaration to new
 header

[ Upstream commit 92cc6bf01c7f4c5cfefd1963985c0064687ebeda ]

Only code/declaration movement, in anticipation of doing a KVM-aware
vcpu_is_preempted(). No additional changes.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201202050456.164005-2-srikar@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/firmware.h  |  6 ------
 arch/powerpc/include/asm/kvm_guest.h | 15 +++++++++++++++
 arch/powerpc/include/asm/kvm_para.h  |  2 +-
 arch/powerpc/kernel/firmware.c       |  1 +
 arch/powerpc/platforms/pseries/smp.c |  1 +
 5 files changed, 18 insertions(+), 7 deletions(-)
 create mode 100644 arch/powerpc/include/asm/kvm_guest.h

diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 0b295bdb201e8..aa6a5ef5d4830 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -134,12 +134,6 @@ extern int ibm_nmi_interlock_token;
 
 extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup;
 
-#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
-bool is_kvm_guest(void);
-#else
-static inline bool is_kvm_guest(void) { return false; }
-#endif
-
 #ifdef CONFIG_PPC_PSERIES
 void pseries_probe_fw_features(void);
 #else
diff --git a/arch/powerpc/include/asm/kvm_guest.h b/arch/powerpc/include/asm/kvm_guest.h
new file mode 100644
index 0000000000000..d2c946dbbd2c0
--- /dev/null
+++ b/arch/powerpc/include/asm/kvm_guest.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 IBM Corporation
+ */
+
+#ifndef _ASM_POWERPC_KVM_GUEST_H_
+#define _ASM_POWERPC_KVM_GUEST_H_
+
+#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
+bool is_kvm_guest(void);
+#else
+static inline bool is_kvm_guest(void) { return false; }
+#endif
+
+#endif /* _ASM_POWERPC_KVM_GUEST_H_ */
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index 744612054c94c..abe1b5e82547b 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -8,7 +8,7 @@
 #ifndef __POWERPC_KVM_PARA_H__
 #define __POWERPC_KVM_PARA_H__
 
-#include <asm/firmware.h>
+#include <asm/kvm_guest.h>
 
 #include <uapi/asm/kvm_para.h>
 
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index fe48d319d490e..5f48e5ad24cdd 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -14,6 +14,7 @@
 #include <linux/of.h>
 
 #include <asm/firmware.h>
+#include <asm/kvm_guest.h>
 
 #ifdef CONFIG_PPC64
 unsigned long powerpc_firmware_features __read_mostly;
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 624e80b00eb18..7be7094075ab5 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -42,6 +42,7 @@
 #include <asm/plpar_wrappers.h>
 #include <asm/code-patching.h>
 #include <asm/svm.h>
+#include <asm/kvm_guest.h>
 
 #include "pseries.h"
 
-- 
GitLab


From 113207234aac0da666ef857c96de6f91d25d443c Mon Sep 17 00:00:00 2001
From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Date: Wed, 2 Dec 2020 10:34:54 +0530
Subject: [PATCH 1342/4878] powerpc: Rename is_kvm_guest() to check_kvm_guest()

[ Upstream commit 16520a858a995742c2d2248e86a6026bd0316562 ]

We want to reuse the is_kvm_guest() name in a subsequent patch but
with a new body. Hence rename is_kvm_guest() to check_kvm_guest(). No
additional changes.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: kernel test robot <lkp@intel.com> # int -> bool fix
[mpe: Fold in fix from lkp to use true/false not 0/1]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201202050456.164005-3-srikar@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/kvm_guest.h | 4 ++--
 arch/powerpc/include/asm/kvm_para.h  | 2 +-
 arch/powerpc/kernel/firmware.c       | 8 ++++----
 arch/powerpc/platforms/pseries/smp.c | 2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_guest.h b/arch/powerpc/include/asm/kvm_guest.h
index d2c946dbbd2c0..d7749ecb30d49 100644
--- a/arch/powerpc/include/asm/kvm_guest.h
+++ b/arch/powerpc/include/asm/kvm_guest.h
@@ -7,9 +7,9 @@
 #define _ASM_POWERPC_KVM_GUEST_H_
 
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
-bool is_kvm_guest(void);
+bool check_kvm_guest(void);
 #else
-static inline bool is_kvm_guest(void) { return false; }
+static inline bool check_kvm_guest(void) { return false; }
 #endif
 
 #endif /* _ASM_POWERPC_KVM_GUEST_H_ */
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index abe1b5e82547b..6fba06b6cfdbc 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -14,7 +14,7 @@
 
 static inline int kvm_para_available(void)
 {
-	return IS_ENABLED(CONFIG_KVM_GUEST) && is_kvm_guest();
+	return IS_ENABLED(CONFIG_KVM_GUEST) && check_kvm_guest();
 }
 
 static inline unsigned int kvm_arch_para_features(void)
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index 5f48e5ad24cdd..c3140c6084c93 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -22,17 +22,17 @@ EXPORT_SYMBOL_GPL(powerpc_firmware_features);
 #endif
 
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
-bool is_kvm_guest(void)
+bool check_kvm_guest(void)
 {
 	struct device_node *hyper_node;
 
 	hyper_node = of_find_node_by_path("/hypervisor");
 	if (!hyper_node)
-		return 0;
+		return false;
 
 	if (!of_device_is_compatible(hyper_node, "linux,kvm"))
-		return 0;
+		return false;
 
-	return 1;
+	return true;
 }
 #endif
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 7be7094075ab5..9d596b41ec675 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -208,7 +208,7 @@ static __init void pSeries_smp_probe(void)
 	if (!cpu_has_feature(CPU_FTR_SMT))
 		return;
 
-	if (is_kvm_guest()) {
+	if (check_kvm_guest()) {
 		/*
 		 * KVM emulates doorbells by disabling FSCR[MSGP] so msgsndp
 		 * faults to the hypervisor which then reads the instruction
-- 
GitLab


From e01a4d7560b64791c350cd531b84a6a53ba6325b Mon Sep 17 00:00:00 2001
From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Date: Wed, 2 Dec 2020 10:34:55 +0530
Subject: [PATCH 1343/4878] powerpc: Reintroduce is_kvm_guest() as a fast-path
 check

[ Upstream commit a21d1becaa3f17a97b933ffa677b526afc514ec5 ]

Introduce a static branch that would be set during boot if the OS
happens to be a KVM guest. Subsequent checks to see if we are on KVM
will rely on this static branch. This static branch would be used in
vcpu_is_preempted() in a subsequent patch.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201202050456.164005-4-srikar@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/kvm_guest.h | 10 ++++++++++
 arch/powerpc/include/asm/kvm_para.h  |  2 +-
 arch/powerpc/kernel/firmware.c       |  2 ++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/kvm_guest.h b/arch/powerpc/include/asm/kvm_guest.h
index d7749ecb30d49..2fca299f7e192 100644
--- a/arch/powerpc/include/asm/kvm_guest.h
+++ b/arch/powerpc/include/asm/kvm_guest.h
@@ -7,8 +7,18 @@
 #define _ASM_POWERPC_KVM_GUEST_H_
 
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
+#include <linux/jump_label.h>
+
+DECLARE_STATIC_KEY_FALSE(kvm_guest);
+
+static inline bool is_kvm_guest(void)
+{
+	return static_branch_unlikely(&kvm_guest);
+}
+
 bool check_kvm_guest(void);
 #else
+static inline bool is_kvm_guest(void) { return false; }
 static inline bool check_kvm_guest(void) { return false; }
 #endif
 
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index 6fba06b6cfdbc..abe1b5e82547b 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -14,7 +14,7 @@
 
 static inline int kvm_para_available(void)
 {
-	return IS_ENABLED(CONFIG_KVM_GUEST) && check_kvm_guest();
+	return IS_ENABLED(CONFIG_KVM_GUEST) && is_kvm_guest();
 }
 
 static inline unsigned int kvm_arch_para_features(void)
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index c3140c6084c93..c9e2819b095ab 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -22,6 +22,7 @@ EXPORT_SYMBOL_GPL(powerpc_firmware_features);
 #endif
 
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
+DEFINE_STATIC_KEY_FALSE(kvm_guest);
 bool check_kvm_guest(void)
 {
 	struct device_node *hyper_node;
@@ -33,6 +34,7 @@ bool check_kvm_guest(void)
 	if (!of_device_is_compatible(hyper_node, "linux,kvm"))
 		return false;
 
+	static_branch_enable(&kvm_guest);
 	return true;
 }
 #endif
-- 
GitLab


From 54965d92a4645e3606202544c3a74ac443fd5c22 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Wed, 23 Jun 2021 23:05:14 +1000
Subject: [PATCH 1344/4878] powerpc: Fix is_kvm_guest() / kvm_para_available()

[ Upstream commit 95839225639ba7c3d8d7231b542728dcf222bf2d ]

Commit a21d1becaa3f ("powerpc: Reintroduce is_kvm_guest() as a fast-path
check") added is_kvm_guest() and changed kvm_para_available() to use it.

is_kvm_guest() checks a static key, kvm_guest, and that static key is
set in check_kvm_guest().

The problem is check_kvm_guest() is only called on pseries, and even
then only in some configurations. That means is_kvm_guest() always
returns false on all non-pseries and some pseries depending on
configuration. That's a bug.

For PR KVM guests this is noticable because they no longer do live
patching of themselves, which can be detected by the omission of a
message in dmesg such as:

  KVM: Live patching for a fast VM worked

To fix it make check_kvm_guest() an initcall, to ensure it's always
called at boot. It needs to be core so that it runs before
kvm_guest_init() which is postcore. To be an initcall it needs to return
int, where 0 means success, so update that.

We still call it manually in pSeries_smp_probe(), because that runs
before init calls are run.

Fixes: a21d1becaa3f ("powerpc: Reintroduce is_kvm_guest() as a fast-path check")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210623130514.2543232-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/kvm_guest.h |  4 ++--
 arch/powerpc/kernel/firmware.c       | 10 ++++++----
 arch/powerpc/platforms/pseries/smp.c |  4 +++-
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_guest.h b/arch/powerpc/include/asm/kvm_guest.h
index 2fca299f7e192..c63105d2c9e7c 100644
--- a/arch/powerpc/include/asm/kvm_guest.h
+++ b/arch/powerpc/include/asm/kvm_guest.h
@@ -16,10 +16,10 @@ static inline bool is_kvm_guest(void)
 	return static_branch_unlikely(&kvm_guest);
 }
 
-bool check_kvm_guest(void);
+int check_kvm_guest(void);
 #else
 static inline bool is_kvm_guest(void) { return false; }
-static inline bool check_kvm_guest(void) { return false; }
+static inline int check_kvm_guest(void) { return 0; }
 #endif
 
 #endif /* _ASM_POWERPC_KVM_GUEST_H_ */
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index c9e2819b095ab..c7022c41cc314 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -23,18 +23,20 @@ EXPORT_SYMBOL_GPL(powerpc_firmware_features);
 
 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
 DEFINE_STATIC_KEY_FALSE(kvm_guest);
-bool check_kvm_guest(void)
+int __init check_kvm_guest(void)
 {
 	struct device_node *hyper_node;
 
 	hyper_node = of_find_node_by_path("/hypervisor");
 	if (!hyper_node)
-		return false;
+		return 0;
 
 	if (!of_device_is_compatible(hyper_node, "linux,kvm"))
-		return false;
+		return 0;
 
 	static_branch_enable(&kvm_guest);
-	return true;
+
+	return 0;
 }
+core_initcall(check_kvm_guest); // before kvm_guest_init()
 #endif
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 9d596b41ec675..f47429323eee9 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -208,7 +208,9 @@ static __init void pSeries_smp_probe(void)
 	if (!cpu_has_feature(CPU_FTR_SMT))
 		return;
 
-	if (check_kvm_guest()) {
+	check_kvm_guest();
+
+	if (is_kvm_guest()) {
 		/*
 		 * KVM emulates doorbells by disabling FSCR[MSGP] so msgsndp
 		 * faults to the hypervisor which then reads the instruction
-- 
GitLab


From cfbf58ac8ec25000ceb3ceae83b20efde1ece611 Mon Sep 17 00:00:00 2001
From: Nathan Lynch <nathanl@linux.ibm.com>
Date: Tue, 28 Sep 2021 07:45:50 -0500
Subject: [PATCH 1345/4878] powerpc: fix unbalanced node refcount in
 check_kvm_guest()

[ Upstream commit 56537faf8821e361d739fc5ff58c9c40f54a1d4c ]

When check_kvm_guest() succeeds in looking up a /hypervisor OF node, it
returns without performing a matching put for the lookup, leaving the
node's reference count elevated.

Add the necessary call to of_node_put(), rearranging the code slightly to
avoid repetition or goto.

Fixes: 107c55005fbd ("powerpc/pseries: Add KVM guest doorbell restrictions")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210928124550.132020-1-nathanl@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/firmware.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index c7022c41cc314..20328f72f9f2b 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -31,11 +31,10 @@ int __init check_kvm_guest(void)
 	if (!hyper_node)
 		return 0;
 
-	if (!of_device_is_compatible(hyper_node, "linux,kvm"))
-		return 0;
-
-	static_branch_enable(&kvm_guest);
+	if (of_device_is_compatible(hyper_node, "linux,kvm"))
+		static_branch_enable(&kvm_guest);
 
+	of_node_put(hyper_node);
 	return 0;
 }
 core_initcall(check_kvm_guest); // before kvm_guest_init()
-- 
GitLab


From 92a80e1ca20ea9f6099f967494cca0cb57b952a9 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 5 Oct 2021 16:45:16 +0300
Subject: [PATCH 1346/4878] serial: 8250_dw: Drop wrong use of ACPI_PTR()

[ Upstream commit ebabb77a2a115b6c5e68f7364b598310b5f61fb2 ]

ACPI_PTR() is more harmful than helpful. For example, in this case
if CONFIG_ACPI=n, the ID table left unused which is not what we want.

Instead of adding ifdeffery here and there, drop ACPI_PTR().

Fixes: 6a7320c4669f ("serial: 8250_dw: Add ACPI 5.0 support")
Reported-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211005134516.23218-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/8250/8250_dw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index a3a0154da567d..49559731bbcf1 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -726,7 +726,7 @@ static struct platform_driver dw8250_platform_driver = {
 		.name		= "dw-apb-uart",
 		.pm		= &dw8250_pm_ops,
 		.of_match_table	= dw8250_of_match,
-		.acpi_match_table = ACPI_PTR(dw8250_acpi_match),
+		.acpi_match_table = dw8250_acpi_match,
 	},
 	.probe			= dw8250_probe,
 	.remove			= dw8250_remove,
-- 
GitLab


From d8da6328ecaed6cad8c63f27a47405aa0e22fe71 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 11 Oct 2021 15:37:39 +0300
Subject: [PATCH 1347/4878] usb: gadget: hid: fix error code in do_config()

[ Upstream commit 68e7c510fdf4f6167404609da52e1979165649f6 ]

Return an error code if usb_get_function() fails.  Don't return success.

Fixes: 4bc8a33f2407 ("usb: gadget: hid: convert to new interface of f_hid")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211011123739.GC15188@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/legacy/hid.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c
index 5b27d289443fe..3912cc805f3af 100644
--- a/drivers/usb/gadget/legacy/hid.c
+++ b/drivers/usb/gadget/legacy/hid.c
@@ -99,8 +99,10 @@ static int do_config(struct usb_configuration *c)
 
 	list_for_each_entry(e, &hidg_func_list, node) {
 		e->f = usb_get_function(e->fi);
-		if (IS_ERR(e->f))
+		if (IS_ERR(e->f)) {
+			status = PTR_ERR(e->f);
 			goto put;
+		}
 		status = usb_add_function(c, e->f);
 		if (status < 0) {
 			usb_put_function(e->f);
-- 
GitLab


From c553d673018df441a11120b3de12aa1025e88a72 Mon Sep 17 00:00:00 2001
From: Jakob Hauser <jahau@rocketmail.com>
Date: Fri, 8 Oct 2021 10:32:45 +0200
Subject: [PATCH 1348/4878] =?UTF-8?q?power:=20supply:=20rt5033=5Fbattery:?=
 =?UTF-8?q?=20Change=20voltage=20values=20to=20=C2=B5V?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit bf895295e9a73411889816f1a0c1f4f1a2d9c678 ]

Currently the rt5033_battery driver provides voltage values in mV. It
should be µV as stated in Documentation/power/power_supply_class.rst.

Fixes: b847dd96e659 ("power: rt5033_battery: Add RT5033 Fuel gauge device driver")
Cc: Beomho Seo <beomho.seo@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/rt5033_battery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/power/supply/rt5033_battery.c b/drivers/power/supply/rt5033_battery.c
index 9ad0afe83d1b7..7a23c70f48791 100644
--- a/drivers/power/supply/rt5033_battery.c
+++ b/drivers/power/supply/rt5033_battery.c
@@ -60,7 +60,7 @@ static int rt5033_battery_get_watt_prop(struct i2c_client *client,
 	regmap_read(battery->regmap, regh, &msb);
 	regmap_read(battery->regmap, regl, &lsb);
 
-	ret = ((msb << 4) + (lsb >> 4)) * 1250 / 1000;
+	ret = ((msb << 4) + (lsb >> 4)) * 1250;
 
 	return ret;
 }
-- 
GitLab


From 12c46732042c812a97f5d40cdb25aa21784d6079 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 8 Oct 2021 14:31:50 +0800
Subject: [PATCH 1349/4878] power: supply: max17040: fix null-ptr-deref in
 max17040_probe()

[ Upstream commit 1d422ecfc48ee683ae1ccc9217764f6310c0ffce ]

Add check the return value of devm_regmap_init_i2c(), otherwise
later access may cause null-ptr-deref as follows:

KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367]
RIP: 0010:regmap_read+0x33/0x170
Call Trace:
  max17040_probe+0x61b/0xff0 [max17040_battery]
 ? write_comp_data+0x2a/0x90
 ? max17040_set_property+0x1d0/0x1d0 [max17040_battery]
 ? tracer_hardirqs_on+0x33/0x520
 ? __sanitizer_cov_trace_pc+0x1d/0x50
 ? _raw_spin_unlock_irqrestore+0x4b/0x60
 ? trace_hardirqs_on+0x63/0x2d0
 ? write_comp_data+0x2a/0x90
 ? __sanitizer_cov_trace_pc+0x1d/0x50
 ? max17040_set_property+0x1d0/0x1d0 [max17040_battery]
 i2c_device_probe+0xa31/0xbe0

Fixes: 6455a8a84bdf ("power: supply: max17040: Use regmap i2c")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/max17040_battery.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c
index d956c67d51558..b6b29ec3d93ec 100644
--- a/drivers/power/supply/max17040_battery.c
+++ b/drivers/power/supply/max17040_battery.c
@@ -482,6 +482,8 @@ static int max17040_probe(struct i2c_client *client,
 	chip->client = client;
 	chip->regmap = devm_regmap_init_i2c(client, &max17040_regmap);
 	chip->pdata = client->dev.platform_data;
+	if (IS_ERR(chip->regmap))
+		return PTR_ERR(chip->regmap);
 	chip_id = (enum chip_id) id->driver_data;
 	if (client->dev.of_node) {
 		ret = max17040_get_of_data(chip);
-- 
GitLab


From bce61de56480e92e69e748671519ae342616324d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 6 Oct 2021 10:32:43 +0300
Subject: [PATCH 1350/4878] scsi: csiostor: Uninitialized data in
 csio_ln_vnp_read_cbfn()

[ Upstream commit f4875d509a0a78ad294a1a538d534b5ba94e685a ]

This variable is just a temporary variable, used to do an endian
conversion.  The problem is that the last byte is not initialized.  After
the conversion is completely done, the last byte is discarded so it doesn't
cause a problem.  But static checkers and the KMSan runtime checker can
detect the uninitialized read and will complain about it.

Link: https://lore.kernel.org/r/20211006073242.GA8404@kili
Fixes: 5036f0a0ecd3 ("[SCSI] csiostor: Fix sparse warnings.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/csiostor/csio_lnode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/csiostor/csio_lnode.c b/drivers/scsi/csiostor/csio_lnode.c
index dc98f51f466fb..d5ac938970232 100644
--- a/drivers/scsi/csiostor/csio_lnode.c
+++ b/drivers/scsi/csiostor/csio_lnode.c
@@ -619,7 +619,7 @@ csio_ln_vnp_read_cbfn(struct csio_hw *hw, struct csio_mb *mbp)
 	struct fc_els_csp *csp;
 	struct fc_els_cssp *clsp;
 	enum fw_retval retval;
-	__be32 nport_id;
+	__be32 nport_id = 0;
 
 	retval = FW_CMD_RETVAL_G(ntohl(rsp->alloc_to_len16));
 	if (retval != FW_SUCCESS) {
-- 
GitLab


From 0058f7fbea134a033fe35af7f5a8e8befe77ab13 Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Tue, 12 Oct 2021 10:28:43 +0300
Subject: [PATCH 1351/4878] RDMA/mlx4: Return missed an error if device doesn't
 support steering

[ Upstream commit f4e56ec4452f48b8292dcf0e1c4bdac83506fb8b ]

The error flow fixed in this patch is not possible because all kernel
users of create QP interface check that device supports steering before
set IB_QP_CREATE_NETIF_QP flag.

Fixes: c1c98501121e ("IB/mlx4: Add support for steerable IB UD QPs")
Link: https://lore.kernel.org/r/91c61f6e60eb0240f8bbc321fda7a1d2986dd03c.1634023677.git.leonro@nvidia.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx4/qp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 6bc0818f4b2c6..c6a815a705fef 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1099,8 +1099,10 @@ static int create_qp_common(struct ib_pd *pd, struct ib_qp_init_attr *init_attr,
 			if (dev->steering_support ==
 			    MLX4_STEERING_MODE_DEVICE_MANAGED)
 				qp->flags |= MLX4_IB_QP_NETIF;
-			else
+			else {
+				err = -EINVAL;
 				goto err;
+			}
 		}
 
 		err = set_kernel_sq_size(dev, &init_attr->cap, qp_type, qp);
-- 
GitLab


From 8e1feecc04fc2f8ab2e8d817dc8ad60fb2924a1d Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 5 Oct 2021 16:57:47 -0700
Subject: [PATCH 1352/4878] usb: musb: select GENERIC_PHY instead of depending
 on it

[ Upstream commit fde1fbedbaed4e76cef4600d775b185f59b9b568 ]

The kconfig symbol GENERIC_PHY says:
  All the users of this framework should select this config.
and around 136 out of 138 drivers do so, so change USB_MUSB_MEDIATEK
to do so also.

This (also) fixes a long circular dependency problem for an upcoming
patch.

Fixes: 0990366bab3c ("usb: musb: Add support for MediaTek musb controller")
Cc: Bin Liu <b-liu@ti.com>
Cc: Min Guo <min.guo@mediatek.com>
Cc: Yonglong Wu <yonglong.wu@mediatek.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20211005235747.5588-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/musb/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 8de143807c1ae..4d61df6a9b5c8 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -120,7 +120,7 @@ config USB_MUSB_MEDIATEK
 	tristate "MediaTek platforms"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
 	depends on NOP_USB_XCEIV
-	depends on GENERIC_PHY
+	select GENERIC_PHY
 	select USB_ROLE_SWITCH
 
 comment "MUSB DMA mode"
-- 
GitLab


From 0bb8359f9c0d985ca0929dedd3b0cae979b8b9c5 Mon Sep 17 00:00:00 2001
From: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Date: Mon, 11 Oct 2021 09:11:18 +0300
Subject: [PATCH 1353/4878] staging: most: dim2: do not double-register the
 same device

[ Upstream commit 2ab189164056b05474275bb40caa038a37713061 ]

Commit 723de0f9171e ("staging: most: remove device from interface
structure") moved registration of driver-provided struct device to
the most subsystem.

Dim2 used to register the same struct device to provide a custom device
attribute. This causes double-registration of the same struct device.

Fix that by moving the custom attribute to driver's dev_groups.
This moves attribute to the platform_device object, which is a better
location for platform-specific attributes anyway.

Fixes: 723de0f9171e ("staging: most: remove device from interface structure")
Acked-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20211011061117.21435-1-nikita.yoush@cogentembedded.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/most/dim2/Makefile |  2 +-
 drivers/staging/most/dim2/dim2.c   | 24 ++++++++-------
 drivers/staging/most/dim2/sysfs.c  | 49 ------------------------------
 drivers/staging/most/dim2/sysfs.h  | 11 -------
 4 files changed, 14 insertions(+), 72 deletions(-)
 delete mode 100644 drivers/staging/most/dim2/sysfs.c

diff --git a/drivers/staging/most/dim2/Makefile b/drivers/staging/most/dim2/Makefile
index 861adacf6c729..5f9612af3fa3c 100644
--- a/drivers/staging/most/dim2/Makefile
+++ b/drivers/staging/most/dim2/Makefile
@@ -1,4 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MOST_DIM2) += most_dim2.o
 
-most_dim2-objs := dim2.o hal.o sysfs.o
+most_dim2-objs := dim2.o hal.o
diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
index b34e3c130f53f..8c2f384233aab 100644
--- a/drivers/staging/most/dim2/dim2.c
+++ b/drivers/staging/most/dim2/dim2.c
@@ -115,7 +115,8 @@ struct dim2_platform_data {
 	(((p)[1] == 0x18) && ((p)[2] == 0x05) && ((p)[3] == 0x0C) && \
 	 ((p)[13] == 0x3C) && ((p)[14] == 0x00) && ((p)[15] == 0x0A))
 
-bool dim2_sysfs_get_state_cb(void)
+static ssize_t state_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
 {
 	bool state;
 	unsigned long flags;
@@ -124,9 +125,18 @@ bool dim2_sysfs_get_state_cb(void)
 	state = dim_get_lock_state();
 	spin_unlock_irqrestore(&dim_lock, flags);
 
-	return state;
+	return sysfs_emit(buf, "%s\n", state ? "locked" : "");
 }
 
+static DEVICE_ATTR_RO(state);
+
+static struct attribute *dim2_attrs[] = {
+	&dev_attr_state.attr,
+	NULL,
+};
+
+ATTRIBUTE_GROUPS(dim2);
+
 /**
  * dimcb_on_error - callback from HAL to report miscommunication between
  * HDM and HAL
@@ -863,16 +873,8 @@ static int dim2_probe(struct platform_device *pdev)
 		goto err_stop_thread;
 	}
 
-	ret = dim2_sysfs_probe(&dev->dev);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to create sysfs attribute\n");
-		goto err_unreg_iface;
-	}
-
 	return 0;
 
-err_unreg_iface:
-	most_deregister_interface(&dev->most_iface);
 err_stop_thread:
 	kthread_stop(dev->netinfo_task);
 err_shutdown_dim:
@@ -895,7 +897,6 @@ static int dim2_remove(struct platform_device *pdev)
 	struct dim2_hdm *dev = platform_get_drvdata(pdev);
 	unsigned long flags;
 
-	dim2_sysfs_destroy(&dev->dev);
 	most_deregister_interface(&dev->most_iface);
 	kthread_stop(dev->netinfo_task);
 
@@ -1079,6 +1080,7 @@ static struct platform_driver dim2_driver = {
 	.driver = {
 		.name = "hdm_dim2",
 		.of_match_table = dim2_of_match,
+		.dev_groups = dim2_groups,
 	},
 };
 
diff --git a/drivers/staging/most/dim2/sysfs.c b/drivers/staging/most/dim2/sysfs.c
deleted file mode 100644
index c85b2cdcdca3d..0000000000000
--- a/drivers/staging/most/dim2/sysfs.c
+++ /dev/null
@@ -1,49 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * sysfs.c - MediaLB sysfs information
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- */
-
-/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include "sysfs.h"
-#include <linux/device.h>
-
-static ssize_t state_show(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	bool state = dim2_sysfs_get_state_cb();
-
-	return sprintf(buf, "%s\n", state ? "locked" : "");
-}
-
-static DEVICE_ATTR_RO(state);
-
-static struct attribute *dev_attrs[] = {
-	&dev_attr_state.attr,
-	NULL,
-};
-
-static struct attribute_group dev_attr_group = {
-	.attrs = dev_attrs,
-};
-
-static const struct attribute_group *dev_attr_groups[] = {
-	&dev_attr_group,
-	NULL,
-};
-
-int dim2_sysfs_probe(struct device *dev)
-{
-	dev->groups = dev_attr_groups;
-	return device_register(dev);
-}
-
-void dim2_sysfs_destroy(struct device *dev)
-{
-	device_unregister(dev);
-}
diff --git a/drivers/staging/most/dim2/sysfs.h b/drivers/staging/most/dim2/sysfs.h
index 24277a17cff3d..09115cf4ed00e 100644
--- a/drivers/staging/most/dim2/sysfs.h
+++ b/drivers/staging/most/dim2/sysfs.h
@@ -16,15 +16,4 @@ struct medialb_bus {
 	struct kobject kobj_group;
 };
 
-struct device;
-
-int dim2_sysfs_probe(struct device *dev);
-void dim2_sysfs_destroy(struct device *dev);
-
-/*
- * callback,
- * must deliver MediaLB state as true if locked or false if unlocked
- */
-bool dim2_sysfs_get_state_cb(void);
-
 #endif	/* DIM2_SYSFS_H */
-- 
GitLab


From 51bcffb3951c0d2c82942ed012715706190f6a49 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Mon, 11 Oct 2021 17:29:41 +0200
Subject: [PATCH 1354/4878] staging: ks7010: select
 CRYPTO_HASH/CRYPTO_MICHAEL_MIC

[ Upstream commit 9ca0e55e52c7b2a99f3c2051fc4bd1c63a061519 ]

Fix the following build/link errors:

  ld: drivers/staging/ks7010/ks_hostif.o: in function `michael_mic.constprop.0':
  ks_hostif.c:(.text+0x95b): undefined reference to `crypto_alloc_shash'
  ld: ks_hostif.c:(.text+0x97a): undefined reference to `crypto_shash_setkey'
  ld: ks_hostif.c:(.text+0xa13): undefined reference to `crypto_shash_update'
  ld: ks_hostif.c:(.text+0xa28): undefined reference to `crypto_shash_update'
  ld: ks_hostif.c:(.text+0xa48): undefined reference to `crypto_shash_finup'
  ld: ks_hostif.c:(.text+0xa6d): undefined reference to `crypto_destroy_tfm'

Fixes: 8b523f20417d ("staging: ks7010: removed custom Michael MIC implementation.")
Fixes: 3e5bc68fa5968 ("staging: ks7010: Fix build error")
Fixes: a4961427e7494 ("Revert "staging: ks7010: Fix build error"")
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Link: https://lore.kernel.org/r/20211011152941.12847-1-vegard.nossum@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/ks7010/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/ks7010/Kconfig b/drivers/staging/ks7010/Kconfig
index 0987fdc2f70db..8ea6c09286798 100644
--- a/drivers/staging/ks7010/Kconfig
+++ b/drivers/staging/ks7010/Kconfig
@@ -5,6 +5,9 @@ config KS7010
 	select WIRELESS_EXT
 	select WEXT_PRIV
 	select FW_LOADER
+	select CRYPTO
+	select CRYPTO_HASH
+	select CRYPTO_MICHAEL_MIC
 	help
 	  This is a driver for KeyStream KS7010 based SDIO WIFI cards. It is
 	  found on at least later Spectec SDW-821 (FCC-ID "S2Y-WLAN-11G-K" only,
-- 
GitLab


From 78238479b93be46f4be18496b3ac9d50aab80e05 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 7 Oct 2021 16:38:47 +0200
Subject: [PATCH 1355/4878] pinctrl: renesas: checker: Fix off-by-one bug in
 drive register check

[ Upstream commit 28e7f8ff90583791a034d43b5d2e3fe394142e13 ]

The GENMASK(h, l) macro creates a contiguous bitmask starting at bit
position @l and ending at position @h, inclusive.

This did not trigger any error checks, as the individual register fields
cover at most 3 of the 4 available bits.

Fixes: 08df16e07ad0a1ec ("pinctrl: sh-pfc: checker: Add drive strength register checks")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/8f82d6147fbe3367d4c83962480e97f58d9c96a2.1633615652.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/renesas/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/renesas/core.c b/drivers/pinctrl/renesas/core.c
index c528c124fb0e9..9d168b90cd281 100644
--- a/drivers/pinctrl/renesas/core.c
+++ b/drivers/pinctrl/renesas/core.c
@@ -890,7 +890,7 @@ static void __init sh_pfc_check_drive_reg(const struct sh_pfc_soc_info *info,
 		if (!field->pin && !field->offset && !field->size)
 			continue;
 
-		mask = GENMASK(field->offset + field->size, field->offset);
+		mask = GENMASK(field->offset + field->size - 1, field->offset);
 		if (mask & seen)
 			sh_pfc_err("drive_reg 0x%x: field %u overlap\n",
 				   drive->reg, i);
-- 
GitLab


From 3fb75227bdce2cc8f1815f298a447f85534a6565 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Mon, 9 Aug 2021 14:13:24 +0200
Subject: [PATCH 1356/4878] ARM: dts: stm32: Reduce DHCOR SPI NOR frequency to
 50 MHz

[ Upstream commit 2012579b31293d0a8cf2024e9dab66810bf1a15e ]

The SPI NOR is a bit further away from the SoC on DHCOR than on DHCOM,
which causes additional signal delay. At 108 MHz, this delay triggers
a sporadic issue where the first bit of RX data is not received by the
QSPI controller.

There are two options of addressing this problem, either by using the
DLYB block to compensate the extra delay, or by reducing the QSPI bus
clock frequency. The former requires calibration and that is overly
complex, so opt for the second option.

Fixes: 76045bc457104 ("ARM: dts: stm32: Add QSPI NOR on AV96")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
index a9eb82b2f1704..5af32140e128b 100644
--- a/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
+++ b/arch/arm/boot/dts/stm32mp15xx-dhcor-som.dtsi
@@ -198,7 +198,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-rx-bus-width = <4>;
-		spi-max-frequency = <108000000>;
+		spi-max-frequency = <50000000>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 	};
-- 
GitLab


From 602fefd4561e07debd885e2f80c6b4569d7e0921 Mon Sep 17 00:00:00 2001
From: Olivier Moysan <olivier.moysan@foss.st.com>
Date: Fri, 24 Sep 2021 18:02:21 +0200
Subject: [PATCH 1357/4878] ARM: dts: stm32: fix SAI sub nodes register range

[ Upstream commit 6f87a74d31277f0896dcf8c0850ec14bde03c423 ]

The STM32 SAI subblocks registers offsets are in the range
0x0004 (SAIx_CR1) to 0x0020 (SAIx_DR).
The corresponding range length is 0x20 instead of 0x1c.
Change reg property accordingly.

Fixes: 5afd65c3a060 ("ARM: dts: stm32: add sai support on stm32mp157c")

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/stm32mp151.dtsi | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi
index b479016fef008..7a0ef01de969e 100644
--- a/arch/arm/boot/dts/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/stm32mp151.dtsi
@@ -811,7 +811,7 @@
 				#sound-dai-cells = <0>;
 
 				compatible = "st,stm32-sai-sub-a";
-				reg = <0x4 0x1c>;
+				reg = <0x4 0x20>;
 				clocks = <&rcc SAI1_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 87 0x400 0x01>;
@@ -821,7 +821,7 @@
 			sai1b: audio-controller@4400a024 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-b";
-				reg = <0x24 0x1c>;
+				reg = <0x24 0x20>;
 				clocks = <&rcc SAI1_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 88 0x400 0x01>;
@@ -842,7 +842,7 @@
 			sai2a: audio-controller@4400b004 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-a";
-				reg = <0x4 0x1c>;
+				reg = <0x4 0x20>;
 				clocks = <&rcc SAI2_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 89 0x400 0x01>;
@@ -852,7 +852,7 @@
 			sai2b: audio-controller@4400b024 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-b";
-				reg = <0x24 0x1c>;
+				reg = <0x24 0x20>;
 				clocks = <&rcc SAI2_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 90 0x400 0x01>;
@@ -873,7 +873,7 @@
 			sai3a: audio-controller@4400c004 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-a";
-				reg = <0x04 0x1c>;
+				reg = <0x04 0x20>;
 				clocks = <&rcc SAI3_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 113 0x400 0x01>;
@@ -883,7 +883,7 @@
 			sai3b: audio-controller@4400c024 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-b";
-				reg = <0x24 0x1c>;
+				reg = <0x24 0x20>;
 				clocks = <&rcc SAI3_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 114 0x400 0x01>;
@@ -1250,7 +1250,7 @@
 			sai4a: audio-controller@50027004 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-a";
-				reg = <0x04 0x1c>;
+				reg = <0x04 0x20>;
 				clocks = <&rcc SAI4_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 99 0x400 0x01>;
@@ -1260,7 +1260,7 @@
 			sai4b: audio-controller@50027024 {
 				#sound-dai-cells = <0>;
 				compatible = "st,stm32-sai-sub-b";
-				reg = <0x24 0x1c>;
+				reg = <0x24 0x20>;
 				clocks = <&rcc SAI4_K>;
 				clock-names = "sai_ck";
 				dmas = <&dmamux1 100 0x400 0x01>;
-- 
GitLab


From d34982c08714043cfab89406f36d8826c55b8baf Mon Sep 17 00:00:00 2001
From: Olivier Moysan <olivier.moysan@foss.st.com>
Date: Mon, 4 Oct 2021 11:03:04 +0200
Subject: [PATCH 1358/4878] ARM: dts: stm32: fix AV96 board SAI2 pin muxing on
 stm32mp15

[ Upstream commit 1a9a9d226f0f0ef5d9bf588ab432e0d679bb1954 ]

Fix SAI2A and SAI2B pin muxings for AV96 board on STM32MP15.
Change sai2a-4 & sai2a-5 to sai2a-2 & sai2a-2.
Change sai2a-4 & sai2a-sleep-5 to sai2b-2 & sai2b-sleep-2

Fixes: dcf185ca8175 ("ARM: dts: stm32: Add alternate pinmux for SAI2 pins on stm32mp15")

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
index dee4d32ab32c4..ccf66adbbf623 100644
--- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
@@ -1091,7 +1091,7 @@
 		};
 	};
 
-	sai2a_pins_c: sai2a-4 {
+	sai2a_pins_c: sai2a-2 {
 		pins {
 			pinmux = <STM32_PINMUX('D', 13, AF10)>, /* SAI2_SCK_A */
 				 <STM32_PINMUX('D', 11, AF10)>, /* SAI2_SD_A */
@@ -1102,7 +1102,7 @@
 		};
 	};
 
-	sai2a_sleep_pins_c: sai2a-5 {
+	sai2a_sleep_pins_c: sai2a-2 {
 		pins {
 			pinmux = <STM32_PINMUX('D', 13, ANALOG)>, /* SAI2_SCK_A */
 				 <STM32_PINMUX('D', 11, ANALOG)>, /* SAI2_SD_A */
@@ -1147,14 +1147,14 @@
 		};
 	};
 
-	sai2b_pins_c: sai2a-4 {
+	sai2b_pins_c: sai2b-2 {
 		pins1 {
 			pinmux = <STM32_PINMUX('F', 11, AF10)>; /* SAI2_SD_B */
 			bias-disable;
 		};
 	};
 
-	sai2b_sleep_pins_c: sai2a-sleep-5 {
+	sai2b_sleep_pins_c: sai2b-sleep-2 {
 		pins {
 			pinmux = <STM32_PINMUX('F', 11, ANALOG)>; /* SAI2_SD_B */
 		};
-- 
GitLab


From 1812deb08f86db26741f801efda1b803ffc1a411 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.cirrus.com>
Date: Fri, 15 Oct 2021 14:36:06 +0100
Subject: [PATCH 1359/4878] ASoC: cs42l42: Correct some register default values

[ Upstream commit d591d4b32aa9552af14a0c7c586a2d3fe9ecc6e0 ]

Some registers had wrong default values in cs42l42_reg_defaults[].

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2c394ca79604 ("ASoC: Add support for CS42L42 codec")
Link: https://lore.kernel.org/r/20211015133619.4698-4-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/cs42l42.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 828dc78202e8b..8e44d0f34194e 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -91,7 +91,7 @@ static const struct reg_default cs42l42_reg_defaults[] = {
 	{ CS42L42_ASP_RX_INT_MASK,		0x1F },
 	{ CS42L42_ASP_TX_INT_MASK,		0x0F },
 	{ CS42L42_CODEC_INT_MASK,		0x03 },
-	{ CS42L42_SRCPL_INT_MASK,		0xFF },
+	{ CS42L42_SRCPL_INT_MASK,		0x7F },
 	{ CS42L42_VPMON_INT_MASK,		0x01 },
 	{ CS42L42_PLL_LOCK_INT_MASK,		0x01 },
 	{ CS42L42_TSRS_PLUG_INT_MASK,		0x0F },
@@ -128,7 +128,7 @@ static const struct reg_default cs42l42_reg_defaults[] = {
 	{ CS42L42_MIXER_CHA_VOL,		0x3F },
 	{ CS42L42_MIXER_ADC_VOL,		0x3F },
 	{ CS42L42_MIXER_CHB_VOL,		0x3F },
-	{ CS42L42_EQ_COEF_IN0,			0x22 },
+	{ CS42L42_EQ_COEF_IN0,			0x00 },
 	{ CS42L42_EQ_COEF_IN1,			0x00 },
 	{ CS42L42_EQ_COEF_IN2,			0x00 },
 	{ CS42L42_EQ_COEF_IN3,			0x00 },
-- 
GitLab


From b288b841c1d82182fbedeea912eba62f11a702ad Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.cirrus.com>
Date: Fri, 15 Oct 2021 14:36:08 +0100
Subject: [PATCH 1360/4878] ASoC: cs42l42: Defer probe if
 request_threaded_irq() returns EPROBE_DEFER

[ Upstream commit 0306988789d9d91a18ff70bd2bf165d3ae0ef1dd ]

The driver can run without an interrupt so if devm_request_threaded_irq()
failed, the probe() just carried on. But if this was EPROBE_DEFER the
driver would continue without an interrupt instead of deferring to wait
for the interrupt to become available.

Fixes: 2c394ca79604 ("ASoC: Add support for CS42L42 codec")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211015133619.4698-6-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/cs42l42.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 8e44d0f34194e..191431868c678 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1796,8 +1796,9 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 			NULL, cs42l42_irq_thread,
 			IRQF_ONESHOT | IRQF_TRIGGER_LOW,
 			"cs42l42", cs42l42);
-
-	if (ret != 0)
+	if (ret == -EPROBE_DEFER)
+		goto err_disable;
+	else if (ret != 0)
 		dev_err(&i2c_client->dev,
 			"Failed to request IRQ: %d\n", ret);
 
-- 
GitLab


From 81e37cf40dbbbedc7f6f74657cf4837fd2887cde Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 3 Nov 2020 15:28:34 +0000
Subject: [PATCH 1361/4878] soc: qcom: rpmhpd: Provide some missing struct
 member descriptions

[ Upstream commit 5d16af6a921f5a4e7038671be5478cba4b7cfe81 ]

Fixes the following W=1 kernel build warning(s):

 drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'parent' not described in 'rpmhpd'
 drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'corner' not described in 'rpmhpd'
 drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'active_corner' not described in 'rpmhpd'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201103152838.1290217-22-lee.jones@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/qcom/rpmhpd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index c8b584d0c8fb4..e7cb40144f9b1 100644
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c
@@ -24,9 +24,12 @@
  * struct rpmhpd - top level RPMh power domain resource data structure
  * @dev:		rpmh power domain controller device
  * @pd:			generic_pm_domain corrresponding to the power domain
+ * @parent:		generic_pm_domain corrresponding to the parent's power domain
  * @peer:		A peer power domain in case Active only Voting is
  *			supported
  * @active_only:	True if it represents an Active only peer
+ * @corner:		current corner
+ * @active_corner:	current active corner
  * @level:		An array of level (vlvl) to corner (hlvl) mappings
  *			derived from cmd-db
  * @level_count:	Number of levels supported by the power domain. max
-- 
GitLab


From 503d6e5fb878256e49eb1b030dafb3bd3beac419 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Mon, 4 Oct 2021 20:37:32 -0700
Subject: [PATCH 1362/4878] soc: qcom: rpmhpd: Make power_on actually enable
 the domain

[ Upstream commit e3e56c050ab6e3f1bd811f0787f50709017543e4 ]

The general expectation is that powering on a power-domain should make
the power domain deliver some power, and if a specific performance state
is needed further requests has to be made.

But in contrast with other power-domain implementations (e.g. rpmpd) the
RPMh does not have an interface to enable the power, so the driver has
to vote for a particular corner (performance level) in rpmh_power_on().

But the corner is never initialized, so a typical request to simply
enable the power domain would not actually turn on the hardware. Further
more, when no more clients vote for a performance state (i.e. the
aggregated vote is 0) the power domain would be turned off.

Fix both of these issues by always voting for a corner with non-zero
value, when the power domain is enabled.

The tracking of the lowest non-zero corner is performed to handle the
corner case if there's ever a domain with a non-zero lowest corner, in
which case both rpmh_power_on() and rpmh_rpmhpd_set_performance_state()
would be allowed to use this lowest corner.

Fixes: 279b7e8a62cc ("soc: qcom: rpmhpd: Add RPMh power domain driver")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211005033732.2284447-1-bjorn.andersson@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/qcom/rpmhpd.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index e7cb40144f9b1..436ec79122ed2 100644
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c
@@ -30,6 +30,7 @@
  * @active_only:	True if it represents an Active only peer
  * @corner:		current corner
  * @active_corner:	current active corner
+ * @enable_corner:	lowest non-zero corner
  * @level:		An array of level (vlvl) to corner (hlvl) mappings
  *			derived from cmd-db
  * @level_count:	Number of levels supported by the power domain. max
@@ -47,6 +48,7 @@ struct rpmhpd {
 	const bool	active_only;
 	unsigned int	corner;
 	unsigned int	active_corner;
+	unsigned int	enable_corner;
 	u32		level[RPMH_ARC_MAX_LEVELS];
 	size_t		level_count;
 	bool		enabled;
@@ -295,13 +297,13 @@ static int rpmhpd_aggregate_corner(struct rpmhpd *pd, unsigned int corner)
 static int rpmhpd_power_on(struct generic_pm_domain *domain)
 {
 	struct rpmhpd *pd = domain_to_rpmhpd(domain);
-	int ret = 0;
+	unsigned int corner;
+	int ret;
 
 	mutex_lock(&rpmhpd_lock);
 
-	if (pd->corner)
-		ret = rpmhpd_aggregate_corner(pd, pd->corner);
-
+	corner = max(pd->corner, pd->enable_corner);
+	ret = rpmhpd_aggregate_corner(pd, corner);
 	if (!ret)
 		pd->enabled = true;
 
@@ -346,6 +348,10 @@ static int rpmhpd_set_performance_state(struct generic_pm_domain *domain,
 		i--;
 
 	if (pd->enabled) {
+		/* Ensure that the domain isn't turn off */
+		if (i < pd->enable_corner)
+			i = pd->enable_corner;
+
 		ret = rpmhpd_aggregate_corner(pd, i);
 		if (ret)
 			goto out;
@@ -382,6 +388,10 @@ static int rpmhpd_update_level_mapping(struct rpmhpd *rpmhpd)
 	for (i = 0; i < rpmhpd->level_count; i++) {
 		rpmhpd->level[i] = buf[i];
 
+		/* Remember the first corner with non-zero level */
+		if (!rpmhpd->level[rpmhpd->enable_corner] && rpmhpd->level[i])
+			rpmhpd->enable_corner = i;
+
 		/*
 		 * The AUX data may be zero padded.  These 0 valued entries at
 		 * the end of the map must be ignored.
-- 
GitLab


From c8e5edca68a312770df85cc6690f729a2a2df99e Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Thu, 14 Oct 2021 18:36:09 -0700
Subject: [PATCH 1363/4878] usb: typec: STUSB160X should select REGMAP_I2C

[ Upstream commit 8ef1e58783b9f55daa4a865c7801dc75cbeb8260 ]

REGMAP_I2C is not a user visible kconfig symbol so driver configs
should not "depend on" it. They should depend on I2C and then
select REGMAP_I2C.

If this worked, it was only because some other driver had set/enabled
REGMAP_I2C.

Fixes: da0cb6310094 ("usb: typec: add support for STUSB160x Type-C controller family")
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Amelie Delaunay <amelie.delaunay@st.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20211015013609.7300-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/typec/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index e7f120874c483..0d953c6805f0f 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -75,9 +75,9 @@ config TYPEC_TPS6598X
 
 config TYPEC_STUSB160X
 	tristate "STMicroelectronics STUSB160x Type-C controller driver"
-	depends on I2C
-	depends on REGMAP_I2C
 	depends on USB_ROLE_SWITCH || !USB_ROLE_SWITCH
+	depends on I2C
+	select REGMAP_I2C
 	help
 	  Say Y or M here if your system has STMicroelectronics STUSB160x
 	  Type-C port controller.
-- 
GitLab


From 948d8f2f2fd5f55f93538ed3fb3f1eea0a8dffb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nuno=20S=C3=A1?= <nuno.sa@analog.com>
Date: Fri, 3 Sep 2021 16:14:19 +0200
Subject: [PATCH 1364/4878] iio: adis: do not disabe IRQs in 'adis_init()'
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit b600bd7eb333554518b4dd36b882b2ae58a5149e ]

With commit ecb010d441088 ("iio: imu: adis: Refactor adis_initial_startup")
we are doing a HW or SW reset to the device which means that we'll get
the default state of the data ready pin (which is enabled). Hence there's
no point in disabling the IRQ in the init function. Moreover, this
function is intended to initialize internal data structures and not
really do anything on the device.

As a result of this, some devices were left with the data ready pin enabled
after probe which was not the desired behavior. Thus, we move the call to
'adis_enable_irq()' to the initial startup function where it makes more
sense for it to be.

Note that for devices that cannot mask/unmask the pin, it makes no sense
to call the function at this point since the IRQ should not have been
yet requested. This will be improved in a follow up change.

Fixes: ecb010d441088 ("iio: imu: adis: Refactor adis_initial_startup")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210903141423.517028-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/imu/adis.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c
index f8b7837d8b8f6..715eef81bc248 100644
--- a/drivers/iio/imu/adis.c
+++ b/drivers/iio/imu/adis.c
@@ -434,6 +434,8 @@ int __adis_initial_startup(struct adis *adis)
 	if (ret)
 		return ret;
 
+	adis_enable_irq(adis, false);
+
 	if (!adis->data->prod_id_reg)
 		return 0;
 
@@ -530,7 +532,7 @@ int adis_init(struct adis *adis, struct iio_dev *indio_dev,
 		adis->current_page = 0;
 	}
 
-	return adis_enable_irq(adis, false);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(adis_init);
 
-- 
GitLab


From 75df593941266161df034af8fd6c562a08e632e8 Mon Sep 17 00:00:00 2001
From: Can Guo <cang@codeaurora.org>
Date: Wed, 25 Nov 2020 18:01:00 -0800
Subject: [PATCH 1365/4878] scsi: ufs: Refactor ufshcd_setup_clocks() to remove
 skip_ref_clk

[ Upstream commit 81309c247a4dcd597cbda5254fd0afdd61b93f14 ]

Remove the param skip_ref_clk from __ufshcd_setup_clocks(), but keep a flag
in struct ufs_clk_info to tell whether a clock can be disabled or not while
the link is active.

Link: https://lore.kernel.org/r/1606356063-38380-2-git-send-email-cang@codeaurora.org
Reviewed-by: Hongwu Su <hongwus@codeaurora.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufshcd-pltfrm.c |  2 ++
 drivers/scsi/ufs/ufshcd.c        | 29 +++++++++--------------------
 drivers/scsi/ufs/ufshcd.h        |  3 +++
 3 files changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 24927cf485b47..68ce209577eca 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -92,6 +92,8 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 		clki->min_freq = clkfreq[i];
 		clki->max_freq = clkfreq[i+1];
 		clki->name = kstrdup(name, GFP_KERNEL);
+		if (!strcmp(name, "ref_clk"))
+			clki->keep_link_active = true;
 		dev_dbg(dev, "%s: min %u max %u name %s\n", "freq-table-hz",
 				clki->min_freq, clki->max_freq, clki->name);
 		list_add_tail(&clki->list, &hba->clk_list_head);
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3139d9df6f320..930f35863cbb5 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -221,8 +221,6 @@ static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd);
 static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag);
 static void ufshcd_hba_exit(struct ufs_hba *hba);
 static int ufshcd_probe_hba(struct ufs_hba *hba, bool async);
-static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
-				 bool skip_ref_clk);
 static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);
 static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);
 static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba);
@@ -1714,11 +1712,7 @@ static void ufshcd_gate_work(struct work_struct *work)
 
 	ufshcd_disable_irq(hba);
 
-	if (!ufshcd_is_link_active(hba))
-		ufshcd_setup_clocks(hba, false);
-	else
-		/* If link is active, device ref_clk can't be switched off */
-		__ufshcd_setup_clocks(hba, false, true);
+	ufshcd_setup_clocks(hba, false);
 
 	/*
 	 * In case you are here to cancel this work the gating state
@@ -8055,8 +8049,7 @@ static int ufshcd_init_hba_vreg(struct ufs_hba *hba)
 	return 0;
 }
 
-static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
-					bool skip_ref_clk)
+static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on)
 {
 	int ret = 0;
 	struct ufs_clk_info *clki;
@@ -8074,7 +8067,12 @@ static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
 
 	list_for_each_entry(clki, head, list) {
 		if (!IS_ERR_OR_NULL(clki->clk)) {
-			if (skip_ref_clk && !strcmp(clki->name, "ref_clk"))
+			/*
+			 * Don't disable clocks which are needed
+			 * to keep the link active.
+			 */
+			if (ufshcd_is_link_active(hba) &&
+			    clki->keep_link_active)
 				continue;
 
 			clk_state_changed = on ^ clki->enabled;
@@ -8119,11 +8117,6 @@ out:
 	return ret;
 }
 
-static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on)
-{
-	return  __ufshcd_setup_clocks(hba, on, false);
-}
-
 static int ufshcd_init_clocks(struct ufs_hba *hba)
 {
 	int ret = 0;
@@ -8642,11 +8635,7 @@ disable_clks:
 	 */
 	ufshcd_disable_irq(hba);
 
-	if (!ufshcd_is_link_active(hba))
-		ufshcd_setup_clocks(hba, false);
-	else
-		/* If link is active, device ref_clk can't be switched off */
-		__ufshcd_setup_clocks(hba, false, true);
+	ufshcd_setup_clocks(hba, false);
 
 	if (ufshcd_is_clkgating_allowed(hba)) {
 		hba->clk_gating.state = CLKS_OFF;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 812aa348751eb..1ba9c786feb6d 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -229,6 +229,8 @@ struct ufs_dev_cmd {
  * @max_freq: maximum frequency supported by the clock
  * @min_freq: min frequency that can be used for clock scaling
  * @curr_freq: indicates the current frequency that it is set to
+ * @keep_link_active: indicates that the clk should not be disabled if
+		      link is active
  * @enabled: variable to check against multiple enable/disable
  */
 struct ufs_clk_info {
@@ -238,6 +240,7 @@ struct ufs_clk_info {
 	u32 max_freq;
 	u32 min_freq;
 	u32 curr_freq;
+	bool keep_link_active;
 	bool enabled;
 };
 
-- 
GitLab


From d293bd40fbad2b9b87af9aaae63314d4434cac50 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 14 Sep 2021 10:22:14 +0100
Subject: [PATCH 1366/4878] scsi: ufs: ufshcd-pltfrm: Fix memory leak due to
 probe defer

[ Upstream commit b6ca770ae7f2c560a29bbd02c4e3d734fafaf804 ]

UFS drivers that probe defer will end up leaking memory allocated for clk
and regulator names via kstrdup() because the structure that is holding
this memory is allocated via devm_* variants which will be freed during
probe defer but the names are never freed.

Use same devm_* variant of kstrdup to free the memory allocated to name
when driver probe defers.

Kmemleak found around 11 leaks on Qualcomm Dragon Board RB5:

unreferenced object 0xffff66f243fb2c00 (size 128):
  comm "kworker/u16:0", pid 7, jiffies 4294893319 (age 94.848s)
  hex dump (first 32 bytes):
    63 6f 72 65 5f 63 6c 6b 00 76 69 72 74 75 61 6c  core_clk.virtual
    2f 77 6f 72 6b 71 75 65 75 65 2f 73 63 73 69 5f  /workqueue/scsi_
  backtrace:
    [<000000006f788cd1>] slab_post_alloc_hook+0x88/0x410
    [<00000000cfd1372b>] __kmalloc_track_caller+0x138/0x230
    [<00000000a92ab17b>] kstrdup+0xb0/0x110
    [<0000000037263ab6>] ufshcd_pltfrm_init+0x1a8/0x500
    [<00000000a20a5caa>] ufs_qcom_probe+0x20/0x58
    [<00000000a5e43067>] platform_probe+0x6c/0x118
    [<00000000ef686e3f>] really_probe+0xc4/0x330
    [<000000005b18792c>] __driver_probe_device+0x88/0x118
    [<00000000a5d295e8>] driver_probe_device+0x44/0x158
    [<000000007e83f58d>] __device_attach_driver+0xb4/0x128
    [<000000004bfa4470>] bus_for_each_drv+0x68/0xd0
    [<00000000b89a83bc>] __device_attach+0xec/0x170
    [<00000000ada2beea>] device_initial_probe+0x14/0x20
    [<0000000079921612>] bus_probe_device+0x9c/0xa8
    [<00000000d268bf7c>] deferred_probe_work_func+0x90/0xd0
    [<000000009ef64bfa>] process_one_work+0x29c/0x788
unreferenced object 0xffff66f243fb2c80 (size 128):
  comm "kworker/u16:0", pid 7, jiffies 4294893319 (age 94.848s)
  hex dump (first 32 bytes):
    62 75 73 5f 61 67 67 72 5f 63 6c 6b 00 00 00 00  bus_aggr_clk....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

With this patch no memory leaks are reported.

Link: https://lore.kernel.org/r/20210914092214.6468-1-srinivas.kandagatla@linaro.org
Fixes: aa4976130934 ("ufs: Add regulator enable support")
Fixes: c6e79dacd86f ("ufs: Add clock initialization support")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufshcd-pltfrm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 68ce209577eca..8c92d1bde64be 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -91,7 +91,7 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 
 		clki->min_freq = clkfreq[i];
 		clki->max_freq = clkfreq[i+1];
-		clki->name = kstrdup(name, GFP_KERNEL);
+		clki->name = devm_kstrdup(dev, name, GFP_KERNEL);
 		if (!strcmp(name, "ref_clk"))
 			clki->keep_link_active = true;
 		dev_dbg(dev, "%s: min %u max %u name %s\n", "freq-table-hz",
@@ -127,7 +127,7 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 	if (!vreg)
 		return -ENOMEM;
 
-	vreg->name = kstrdup(name, GFP_KERNEL);
+	vreg->name = devm_kstrdup(dev, name, GFP_KERNEL);
 
 	snprintf(prop_name, MAX_PROP_SIZE, "%s-max-microamp", name);
 	if (of_property_read_u32(np, prop_name, &vreg->max_uA)) {
-- 
GitLab


From 068dfa570d8c36da0f1493d97695a04e8e84d8bd Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Wed, 20 Oct 2021 21:26:42 +0200
Subject: [PATCH 1367/4878] serial: imx: fix detach/attach of serial console
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 6d0d1b5a1b4870911beb89544ec1a9751c42fec7 ]

If the device used as a serial console gets detached/attached at runtime,
register_console() will try to call imx_uart_setup_console(), but this
is not possible since it is marked as __init.

For instance

  # cat /sys/devices/virtual/tty/console/active
  tty1 ttymxc0
  # echo -n N > /sys/devices/virtual/tty/console/subsystem/ttymxc0/console
  # echo -n Y > /sys/devices/virtual/tty/console/subsystem/ttymxc0/console

[   73.166649] 8<--- cut here ---
[   73.167005] Unable to handle kernel paging request at virtual address c154d928
[   73.167601] pgd = 55433e84
[   73.167875] [c154d928] *pgd=8141941e(bad)
[   73.168304] Internal error: Oops: 8000000d [#1] SMP ARM
[   73.168429] Modules linked in:
[   73.168522] CPU: 0 PID: 536 Comm: sh Not tainted 5.15.0-rc6-00056-g3968ddcf05fb #3
[   73.168675] Hardware name: Freescale i.MX6 Ultralite (Device Tree)
[   73.168791] PC is at imx_uart_console_setup+0x0/0x238
[   73.168927] LR is at try_enable_new_console+0x98/0x124
[   73.169056] pc : [<c154d928>]    lr : [<c0196f44>]    psr: a0000013
[   73.169178] sp : c2ef5e70  ip : 00000000  fp : 00000000
[   73.169281] r10: 00000000  r9 : c02cf970  r8 : 00000000
[   73.169389] r7 : 00000001  r6 : 00000001  r5 : c1760164  r4 : c1e0fb08
[   73.169512] r3 : c154d928  r2 : 00000000  r1 : efffcbd1  r0 : c1760164
[   73.169641] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   73.169782] Control: 10c5387d  Table: 8345406a  DAC: 00000051
[   73.169895] Register r0 information: non-slab/vmalloc memory
[   73.170032] Register r1 information: non-slab/vmalloc memory
[   73.170158] Register r2 information: NULL pointer
[   73.170273] Register r3 information: non-slab/vmalloc memory
[   73.170397] Register r4 information: non-slab/vmalloc memory
[   73.170521] Register r5 information: non-slab/vmalloc memory
[   73.170647] Register r6 information: non-paged memory
[   73.170771] Register r7 information: non-paged memory
[   73.170892] Register r8 information: NULL pointer
[   73.171009] Register r9 information: non-slab/vmalloc memory
[   73.171142] Register r10 information: NULL pointer
[   73.171259] Register r11 information: NULL pointer
[   73.171375] Register r12 information: NULL pointer
[   73.171494] Process sh (pid: 536, stack limit = 0xcd1ba82f)
[   73.171621] Stack: (0xc2ef5e70 to 0xc2ef6000)
[   73.171731] 5e60:                                     ???????? ???????? ???????? ????????
[   73.171899] 5e80: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.172059] 5ea0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.172217] 5ec0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.172377] 5ee0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.172537] 5f00: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.172698] 5f20: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.172856] 5f40: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.173016] 5f60: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.173177] 5f80: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.173336] 5fa0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.173496] 5fc0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.173654] 5fe0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.173826] [<c0196f44>] (try_enable_new_console) from [<c01984a8>] (register_console+0x10c/0x2ec)
[   73.174053] [<c01984a8>] (register_console) from [<c06e2c90>] (console_store+0x14c/0x168)
[   73.174262] [<c06e2c90>] (console_store) from [<c0383718>] (kernfs_fop_write_iter+0x110/0x1cc)
[   73.174470] [<c0383718>] (kernfs_fop_write_iter) from [<c02cf5f4>] (vfs_write+0x31c/0x548)
[   73.174679] [<c02cf5f4>] (vfs_write) from [<c02cf970>] (ksys_write+0x60/0xec)
[   73.174863] [<c02cf970>] (ksys_write) from [<c0100080>] (ret_fast_syscall+0x0/0x1c)
[   73.175052] Exception stack(0xc2ef5fa8 to 0xc2ef5ff0)
[   73.175167] 5fa0:                   ???????? ???????? ???????? ???????? ???????? ????????
[   73.175327] 5fc0: ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????
[   73.175486] 5fe0: ???????? ???????? ???????? ????????
[   73.175608] Code: 00000000 00000000 00000000 00000000 (00000000)
[   73.175744] ---[ end trace 9b75121265109bf1 ]---

A similar issue could be triggered by unbinding/binding the serial
console device [*].

Drop __init so that imx_uart_setup_console() can be safely called at
runtime.

[*] https://lore.kernel.org/all/20181114174940.7865-3-stefan@agner.ch/

Fixes: a3cb39d258ef ("serial: core: Allow detach and attach serial device for console")
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20211020192643.476895-2-francesco.dolcini@toradex.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/imx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index cacf7266a262d..28cc328ddb6eb 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2049,7 +2049,7 @@ imx_uart_console_write(struct console *co, const char *s, unsigned int count)
  * If the port was already initialised (eg, by a boot loader),
  * try to determine the current setup.
  */
-static void __init
+static void
 imx_uart_console_get_options(struct imx_port *sport, int *baud,
 			     int *parity, int *bits)
 {
@@ -2108,7 +2108,7 @@ imx_uart_console_get_options(struct imx_port *sport, int *baud,
 	}
 }
 
-static int __init
+static int
 imx_uart_console_setup(struct console *co, char *options)
 {
 	struct imx_port *sport;
-- 
GitLab


From 6774a429327d55d163f7f106ce90620ce94fac7c Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@foss.st.com>
Date: Tue, 5 Oct 2021 11:53:03 +0200
Subject: [PATCH 1368/4878] usb: dwc2: drd: fix dwc2_force_mode call in
 dwc2_ovr_init

[ Upstream commit b2cab2a24fb5d13ce1d384ecfb6de827fa08a048 ]

Instead of forcing the role to Device, check the dr_mode configuration.
If the core is Host only, force the mode to Host, this to avoid the
dwc2_force_mode warning:
WARNING: CPU: 1 PID: 21 at drivers/usb/dwc2/core.c:615 dwc2_drd_init+0x104/0x17c

When forcing mode to Host, dwc2_force_mode may sleep the time the host
role is applied. To avoid sleeping while atomic context, move the call
to dwc2_force_mode after spin_unlock_irqrestore. It is safe, as
interrupts are not yet unmasked here.

Fixes: 17f934024e84 ("usb: dwc2: override PHY input signals with usb role switch support")
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211005095305.66397-2-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/drd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c
index 2d4176f5788eb..80eae88d76dda 100644
--- a/drivers/usb/dwc2/drd.c
+++ b/drivers/usb/dwc2/drd.c
@@ -25,9 +25,9 @@ static void dwc2_ovr_init(struct dwc2_hsotg *hsotg)
 	gotgctl &= ~(GOTGCTL_BVALOVAL | GOTGCTL_AVALOVAL | GOTGCTL_VBVALOVAL);
 	dwc2_writel(hsotg, gotgctl, GOTGCTL);
 
-	dwc2_force_mode(hsotg, false);
-
 	spin_unlock_irqrestore(&hsotg->lock, flags);
+
+	dwc2_force_mode(hsotg, (hsotg->dr_mode == USB_DR_MODE_HOST));
 }
 
 static int dwc2_ovr_avalid(struct dwc2_hsotg *hsotg, bool valid)
-- 
GitLab


From fc86da757db716f5def66ec954d4e07da7948bac Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@foss.st.com>
Date: Tue, 5 Oct 2021 11:53:04 +0200
Subject: [PATCH 1369/4878] usb: dwc2: drd: fix dwc2_drd_role_sw_set when clock
 could be disabled

[ Upstream commit 8d387f61b0240854e81450c261beb775065bad5d ]

In case of USB_DR_MODE_PERIPHERAL, the OTG clock is disabled at the end of
the probe (it is not the case if USB_DR_MODE_HOST or USB_DR_MODE_OTG).
The clock is then enabled on udc_start.
If dwc2_drd_role_sw_set is called before udc_start (it is the case if the
usb cable is plugged at boot), GOTGCTL and GUSBCFG registers cannot be
read/written, so session cannot be overridden.
To avoid this case, check the ll_hw_enabled value and enable the clock if
it is available, and disable it after the override.

Fixes: 17f934024e84 ("usb: dwc2: override PHY input signals with usb role switch support")
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211005095305.66397-3-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/drd.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c
index 80eae88d76dda..99672360f34b0 100644
--- a/drivers/usb/dwc2/drd.c
+++ b/drivers/usb/dwc2/drd.c
@@ -7,6 +7,7 @@
  * Author(s): Amelie Delaunay <amelie.delaunay@st.com>
  */
 
+#include <linux/clk.h>
 #include <linux/iopoll.h>
 #include <linux/platform_device.h>
 #include <linux/usb/role.h>
@@ -86,6 +87,20 @@ static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role)
 	}
 #endif
 
+	/*
+	 * In case of USB_DR_MODE_PERIPHERAL, clock is disabled at the end of
+	 * the probe and enabled on udc_start.
+	 * If role-switch set is called before the udc_start, we need to enable
+	 * the clock to read/write GOTGCTL and GUSBCFG registers to override
+	 * mode and sessions. It is the case if cable is plugged at boot.
+	 */
+	if (!hsotg->ll_hw_enabled && hsotg->clk) {
+		int ret = clk_prepare_enable(hsotg->clk);
+
+		if (ret)
+			return ret;
+	}
+
 	spin_lock_irqsave(&hsotg->lock, flags);
 
 	if (role == USB_ROLE_HOST) {
@@ -110,6 +125,9 @@ static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role)
 		/* This will raise a Connector ID Status Change Interrupt */
 		dwc2_force_mode(hsotg, role == USB_ROLE_HOST);
 
+	if (!hsotg->ll_hw_enabled && hsotg->clk)
+		clk_disable_unprepare(hsotg->clk);
+
 	dev_dbg(hsotg->dev, "%s-session valid\n",
 		role == USB_ROLE_NONE ? "No" :
 		role == USB_ROLE_HOST ? "A" : "B");
-- 
GitLab


From 31e7a836e2a2e473e170c251897384a58e496c05 Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@foss.st.com>
Date: Tue, 5 Oct 2021 11:53:05 +0200
Subject: [PATCH 1370/4878] usb: dwc2: drd: reset current session before
 setting the new one

[ Upstream commit 1ad707f559f7cb12c64f3d7cb37f0b1ea27c1058 ]

If role is changed without the "none" step, A- and B- valid session could
be set at the same time. It is an issue.
This patch resets A-session if role switch sets B-session, and resets
B-session if role switch sets A-session.
Then, it is possible to change the role without the "none" step.

Fixes: 17f934024e84 ("usb: dwc2: override PHY input signals with usb role switch support")
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211005095305.66397-4-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/drd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c
index 99672360f34b0..aa6eb76f64ddc 100644
--- a/drivers/usb/dwc2/drd.c
+++ b/drivers/usb/dwc2/drd.c
@@ -40,6 +40,7 @@ static int dwc2_ovr_avalid(struct dwc2_hsotg *hsotg, bool valid)
 	    (!valid && !(gotgctl & GOTGCTL_ASESVLD)))
 		return -EALREADY;
 
+	gotgctl &= ~GOTGCTL_BVALOVAL;
 	if (valid)
 		gotgctl |= GOTGCTL_AVALOVAL | GOTGCTL_VBVALOVAL;
 	else
@@ -58,6 +59,7 @@ static int dwc2_ovr_bvalid(struct dwc2_hsotg *hsotg, bool valid)
 	    (!valid && !(gotgctl & GOTGCTL_BSESVLD)))
 		return -EALREADY;
 
+	gotgctl &= ~GOTGCTL_AVALOVAL;
 	if (valid)
 		gotgctl |= GOTGCTL_BVALOVAL | GOTGCTL_VBVALOVAL;
 	else
-- 
GitLab


From b41c528b14fe7aa3d2453e2b53143e4f19096608 Mon Sep 17 00:00:00 2001
From: Guru Das Srinagesh <quic_gurus@quicinc.com>
Date: Mon, 11 Oct 2021 13:00:14 -0700
Subject: [PATCH 1371/4878] firmware: qcom_scm: Fix error retval in
 __qcom_scm_is_call_available()

[ Upstream commit 38212b2a8a6fc4c3a6fa99d7445b833bedc9a67c ]

Since __qcom_scm_is_call_available() returns bool, have it return false
instead of -EINVAL if an invalid SMC convention is detected.

This fixes the Smatch static checker warning:

	drivers/firmware/qcom_scm.c:255 __qcom_scm_is_call_available()
	warn: signedness bug returning '(-22)'

Fixes: 9d11af8b06a8 ("firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1633982414-28347-1-git-send-email-quic_gurus@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/qcom_scm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index c5b20bdc08e9d..e10a99860ca4b 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -252,7 +252,7 @@ static bool __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
 		break;
 	default:
 		pr_err("Unknown SMC convention being used\n");
-		return -EINVAL;
+		return false;
 	}
 
 	ret = qcom_scm_call(dev, &desc, &res);
-- 
GitLab


From a0467ca4d25fff27ca3ed1c289ed486ec9acc71e Mon Sep 17 00:00:00 2001
From: Wan Jiabing <wanjiabing@vivo.com>
Date: Thu, 14 Oct 2021 04:30:17 -0400
Subject: [PATCH 1372/4878] soc: qcom: apr: Add of_node_put() before return

[ Upstream commit 72f1aa6205d84337b90b065f602a8fe190821781 ]

Fix following coccicheck warning:

./drivers/soc/qcom/apr.c:485:1-23: WARNING: Function
for_each_child_of_node should have of_node_put() before return

Early exits from for_each_child_of_node should decrement the
node reference counter.

Fixes: 834735662602 ("soc: qcom: apr: Add avs/audio tracking functionality")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211014083017.19714-1-wanjiabing@vivo.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/qcom/apr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c
index 7abfc8c4fdc72..f736d208362c9 100644
--- a/drivers/soc/qcom/apr.c
+++ b/drivers/soc/qcom/apr.c
@@ -323,12 +323,14 @@ static int of_apr_add_pd_lookups(struct device *dev)
 						    1, &service_path);
 		if (ret < 0) {
 			dev_err(dev, "pdr service path missing: %d\n", ret);
+			of_node_put(node);
 			return ret;
 		}
 
 		pds = pdr_add_lookup(apr->pdr, service_name, service_path);
 		if (IS_ERR(pds) && PTR_ERR(pds) != -EALREADY) {
 			dev_err(dev, "pdr add lookup failed: %ld\n", PTR_ERR(pds));
+			of_node_put(node);
 			return PTR_ERR(pds);
 		}
 	}
-- 
GitLab


From ec40a28495a892d7a99bf7f7e3ad72ea67fbf3b4 Mon Sep 17 00:00:00 2001
From: Rahul Tanwar <rtanwar@maxlinear.com>
Date: Wed, 20 Oct 2021 17:38:15 +0800
Subject: [PATCH 1373/4878] pinctrl: equilibrium: Fix function addition in
 multiple groups

[ Upstream commit 53b3947ddb7f309d1f611f8dc9bfd6ea9d699907 ]

Ignore the same function with multiple groups.
Fix a typo in error print.

Fixes: 1948d5c51dba ("pinctrl: Add pinmux & GPIO controller driver for a new SoC")
Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com>
Link: https://lore.kernel.org/r/20211020093815.20870-1-rtanwar@maxlinear.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-equilibrium.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-equilibrium.c b/drivers/pinctrl/pinctrl-equilibrium.c
index ac1c47f542c11..3b6dcaa80e000 100644
--- a/drivers/pinctrl/pinctrl-equilibrium.c
+++ b/drivers/pinctrl/pinctrl-equilibrium.c
@@ -674,6 +674,11 @@ static int eqbr_build_functions(struct eqbr_pinctrl_drv_data *drvdata)
 		return ret;
 
 	for (i = 0; i < nr_funcs; i++) {
+
+		/* Ignore the same function with multiple groups */
+		if (funcs[i].name == NULL)
+			continue;
+
 		ret = pinmux_generic_add_function(drvdata->pctl_dev,
 						  funcs[i].name,
 						  funcs[i].groups,
@@ -805,7 +810,7 @@ static int pinctrl_reg(struct eqbr_pinctrl_drv_data *drvdata)
 
 	ret = eqbr_build_functions(drvdata);
 	if (ret) {
-		dev_err(dev, "Failed to build groups\n");
+		dev_err(dev, "Failed to build functions\n");
 		return ret;
 	}
 
-- 
GitLab


From 0a46740a0af08e3ee1a572bf4073a564c9cb160a Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Date: Thu, 23 Sep 2021 02:35:48 +0300
Subject: [PATCH 1374/4878] phy: qcom-qusb2: Fix a memory leak on probe

[ Upstream commit bf7ffcd0069d30e2e7ba2b827f08c89f471cd1f3 ]

On success nvmem_cell_read() returns a pointer to a dynamically allocated
buffer, and therefore it shall be freed after usage.

The issue is reported by kmemleak:

  # cat /sys/kernel/debug/kmemleak
  unreferenced object 0xffff3b3803e4b280 (size 128):
    comm "kworker/u16:1", pid 107, jiffies 4294892861 (age 94.120s)
    hex dump (first 32 bytes):
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    backtrace:
      [<000000007739afdc>] __kmalloc+0x27c/0x41c
      [<0000000071c0fbf8>] nvmem_cell_read+0x40/0xe0
      [<00000000e803ef1f>] qusb2_phy_init+0x258/0x5bc
      [<00000000fc81fcfa>] phy_init+0x70/0x110
      [<00000000e3d48a57>] dwc3_core_soft_reset+0x4c/0x234
      [<0000000027d1dbd4>] dwc3_core_init+0x68/0x990
      [<000000001965faf9>] dwc3_probe+0x4f4/0x730
      [<000000002f7617ca>] platform_probe+0x74/0xf0
      [<00000000a2576cac>] really_probe+0xc4/0x470
      [<00000000bc77f2c5>] __driver_probe_device+0x11c/0x190
      [<00000000130db71f>] driver_probe_device+0x48/0x110
      [<0000000019f36c2b>] __device_attach_driver+0xa4/0x140
      [<00000000e5812ff7>]  bus_for_each_drv+0x84/0xe0
      [<00000000f4bac574>] __device_attach+0xe4/0x1c0
      [<00000000d3beb631>] device_initial_probe+0x20/0x30
      [<000000008019b9db>] bus_probe_device+0xa4/0xb0

Fixes: ca04d9d3e1b1 ("phy: qcom-qusb2: New driver for QUSB2 PHY on Qcom chips")
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210922233548.2150244-1-vladimir.zapolskiy@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-qusb2.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index 557547dabfd50..f531043ec3deb 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c
@@ -474,7 +474,7 @@ static void qusb2_phy_set_tune2_param(struct qusb2_phy *qphy)
 {
 	struct device *dev = &qphy->phy->dev;
 	const struct qusb2_phy_cfg *cfg = qphy->cfg;
-	u8 *val;
+	u8 *val, hstx_trim;
 
 	/* efuse register is optional */
 	if (!qphy->cell)
@@ -488,7 +488,13 @@ static void qusb2_phy_set_tune2_param(struct qusb2_phy *qphy)
 	 * set while configuring the phy.
 	 */
 	val = nvmem_cell_read(qphy->cell, NULL);
-	if (IS_ERR(val) || !val[0]) {
+	if (IS_ERR(val)) {
+		dev_dbg(dev, "failed to read a valid hs-tx trim value\n");
+		return;
+	}
+	hstx_trim = val[0];
+	kfree(val);
+	if (!hstx_trim) {
 		dev_dbg(dev, "failed to read a valid hs-tx trim value\n");
 		return;
 	}
@@ -496,12 +502,10 @@ static void qusb2_phy_set_tune2_param(struct qusb2_phy *qphy)
 	/* Fused TUNE1/2 value is the higher nibble only */
 	if (cfg->update_tune1_with_efuse)
 		qusb2_write_mask(qphy->base, cfg->regs[QUSB2PHY_PORT_TUNE1],
-				 val[0] << HSTX_TRIM_SHIFT,
-				 HSTX_TRIM_MASK);
+				 hstx_trim << HSTX_TRIM_SHIFT, HSTX_TRIM_MASK);
 	else
 		qusb2_write_mask(qphy->base, cfg->regs[QUSB2PHY_PORT_TUNE2],
-				 val[0] << HSTX_TRIM_SHIFT,
-				 HSTX_TRIM_MASK);
+				 hstx_trim << HSTX_TRIM_SHIFT, HSTX_TRIM_MASK);
 }
 
 static int qusb2_phy_set_mode(struct phy *phy,
-- 
GitLab


From fd056574a7e8322c847b458cfe7c1343dcc32497 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 14 Sep 2021 14:00:38 +0300
Subject: [PATCH 1375/4878] phy: ti: gmii-sel: check of_get_address() for
 failure

[ Upstream commit 8d55027f4e2c04146a75fb63371ab96ccc887f2c ]

Smatch complains that if of_get_address() returns NULL, then "size"
isn't initialized.  Also it would lead to an Oops.

Fixes: 7f78322cdd67 ("phy: ti: gmii-sel: retrieve ports number and base offset from dt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20210914110038.GB11657@kili
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/ti/phy-gmii-sel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/ti/phy-gmii-sel.c b/drivers/phy/ti/phy-gmii-sel.c
index 5fd2e8a08bfcf..d0ab69750c6b4 100644
--- a/drivers/phy/ti/phy-gmii-sel.c
+++ b/drivers/phy/ti/phy-gmii-sel.c
@@ -320,6 +320,8 @@ static int phy_gmii_sel_init_ports(struct phy_gmii_sel_priv *priv)
 		u64 size;
 
 		offset = of_get_address(dev->of_node, 0, &size, NULL);
+		if (!offset)
+			return -EINVAL;
 		priv->num_ports = size / sizeof(u32);
 		if (!priv->num_ports)
 			return -EINVAL;
-- 
GitLab


From 515778f9d841c54b7aed8ee88940426c0987b649 Mon Sep 17 00:00:00 2001
From: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
Date: Mon, 25 Oct 2021 09:49:35 +0530
Subject: [PATCH 1376/4878] phy: qcom-snps: Correct the FSEL_MASK

[ Upstream commit b475bf0ec40a2b13fb32ef62f5706576d5858460 ]

The FSEL_MASK which selects the refclock is defined incorrectly.
It should be [4:6] not [5:7]. Due to this incorrect definition, the BIT(7)
in USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0 is reset which keeps PHY analog
blocks ON during suspend.
Fix this issue by correctly defining the FSEL_MASK.

Fixes: 51e8114f80d0 ("phy: qcom-snps: Add SNPS USB PHY driver for QCOM based SOCs")
Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com>
Link: https://lore.kernel.org/r/1635135575-5668-1-git-send-email-quic_c_sanm@quicinc.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index ae4bac024c7b1..7e61202aa234e 100644
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -33,7 +33,7 @@
 
 #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0	(0x54)
 #define RETENABLEN				BIT(3)
-#define FSEL_MASK				GENMASK(7, 5)
+#define FSEL_MASK				GENMASK(6, 4)
 #define FSEL_DEFAULT				(0x3 << 4)
 
 #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON1	(0x58)
-- 
GitLab


From f2886010a8d1a87e4c667f0670839a374ec34a71 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@bitwise.fi>
Date: Tue, 26 Oct 2021 13:27:41 +0300
Subject: [PATCH 1377/4878] serial: xilinx_uartps: Fix race condition causing
 stuck TX

[ Upstream commit 88b20f84f0fe47409342669caf3e58a3fc64c316 ]

xilinx_uartps .start_tx() clears TXEMPTY when enabling TXEMPTY to avoid
any previous TXEVENT event asserting the UART interrupt. This clear
operation is done immediately after filling the TX FIFO.

However, if the bytes inserted by cdns_uart_handle_tx() are consumed by
the UART before the TXEMPTY is cleared, the clear operation eats the new
TXEMPTY event as well, causing cdns_uart_isr() to never receive the
TXEMPTY event. If there are bytes still queued in circbuf, TX will get
stuck as they will never get transferred to FIFO (unless new bytes are
queued to circbuf in which case .start_tx() is called again).

While the racy missed TXEMPTY occurs fairly often with short data
sequences (e.g. write 1 byte), in those cases circbuf is usually empty
so no action on TXEMPTY would have been needed anyway. On the other
hand, longer data sequences make the race much more unlikely as UART
takes longer to consume the TX FIFO. Therefore it is rare for this race
to cause visible issues in general.

Fix the race by clearing the TXEMPTY bit in ISR *before* filling the
FIFO.

The TXEMPTY bit in ISR will only get asserted at the exact moment the
TX FIFO *becomes* empty, so clearing the bit before filling FIFO does
not cause an extra immediate assertion even if the FIFO is initially
empty.

This is hard to reproduce directly on a normal system, but inserting
e.g. udelay(200) after cdns_uart_handle_tx(port), setting 4000000 baud,
and then running "dd if=/dev/zero bs=128 of=/dev/ttyPS0 count=50"
reliably reproduces the issue on my ZynqMP test system unless this fix
is applied.

Fixes: 85baf542d54e ("tty: xuartps: support 64 byte FIFO size")
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Link: https://lore.kernel.org/r/20211026102741.2910441-1-anssi.hannula@bitwise.fi
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/xilinx_uartps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index a9b1ee27183a7..b5a8afbc452ba 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -601,9 +601,10 @@ static void cdns_uart_start_tx(struct uart_port *port)
 	if (uart_circ_empty(&port->state->xmit))
 		return;
 
+	writel(CDNS_UART_IXR_TXEMPTY, port->membase + CDNS_UART_ISR);
+
 	cdns_uart_handle_tx(port);
 
-	writel(CDNS_UART_IXR_TXEMPTY, port->membase + CDNS_UART_ISR);
 	/* Enable the TX Empty interrupt */
 	writel(CDNS_UART_IXR_TXEMPTY, port->membase + CDNS_UART_IER);
 }
-- 
GitLab


From 26be378079fc335d8ecb2113b58788d141b035df Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Mon, 11 Oct 2021 14:27:11 +0300
Subject: [PATCH 1378/4878] clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL

[ Upstream commit f12d028b743bb6136da60b17228a1b6162886444 ]

Use DIV_ROUND_CLOSEST_ULL() to avoid any inconsistency b/w the rate
computed in sam9x60_frac_pll_recalc_rate() and the one computed in
sam9x60_frac_pll_compute_mul_frac().

Fixes: 43b1bb4a9b3e1 ("clk: at91: clk-sam9x60-pll: re-factor to support plls with multiple outputs")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20211011112719.3951784-8-claudiu.beznea@microchip.com
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/at91/clk-sam9x60-pll.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/at91/clk-sam9x60-pll.c b/drivers/clk/at91/clk-sam9x60-pll.c
index 78f458a7b2ef4..5a9daa3643a72 100644
--- a/drivers/clk/at91/clk-sam9x60-pll.c
+++ b/drivers/clk/at91/clk-sam9x60-pll.c
@@ -71,8 +71,8 @@ static unsigned long sam9x60_frac_pll_recalc_rate(struct clk_hw *hw,
 	struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw);
 	struct sam9x60_frac *frac = to_sam9x60_frac(core);
 
-	return (parent_rate * (frac->mul + 1) +
-		((u64)parent_rate * frac->frac >> 22));
+	return parent_rate * (frac->mul + 1) +
+		DIV_ROUND_CLOSEST_ULL((u64)parent_rate * frac->frac, (1 << 22));
 }
 
 static int sam9x60_frac_pll_prepare(struct clk_hw *hw)
-- 
GitLab


From e2f0bff411f5245ecd01061e5c17eff461ff6625 Mon Sep 17 00:00:00 2001
From: Andrej Shadura <andrew.shadura@collabora.co.uk>
Date: Tue, 19 Oct 2021 17:29:16 +0200
Subject: [PATCH 1379/4878] HID: u2fzero: clarify error check and length
 calculations

[ Upstream commit b7abf78b7a6c4a29a6e0ba0bb883fe44a2f3d693 ]

The previous commit fixed handling of incomplete packets but broke error
handling: offsetof returns an unsigned value (size_t), but when compared
against the signed return value, the return value is interpreted as if
it were unsigned, so negative return values are never less than the
offset.

To make the code easier to read, calculate the minimal packet length
once and separately, and assign it to a signed int variable to eliminate
unsigned math and the need for type casts. It then becomes immediately
obvious how the actual data length is calculated and why the return
value cannot be less than the minimal length.

Fixes: 22d65765f211 ("HID: u2fzero: ignore incomplete packets without data")
Fixes: 42337b9d4d95 ("HID: add driver for U2F Zero built-in LED and RNG")
Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-u2fzero.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-u2fzero.c b/drivers/hid/hid-u2fzero.c
index d70cd3d7f583b..94f78ffb76d04 100644
--- a/drivers/hid/hid-u2fzero.c
+++ b/drivers/hid/hid-u2fzero.c
@@ -191,6 +191,8 @@ static int u2fzero_rng_read(struct hwrng *rng, void *data,
 	struct u2f_hid_msg resp;
 	int ret;
 	size_t actual_length;
+	/* valid packets must have a correct header */
+	int min_length = offsetof(struct u2f_hid_msg, init.data);
 
 	if (!dev->present) {
 		hid_dbg(dev->hdev, "device not present");
@@ -200,12 +202,12 @@ static int u2fzero_rng_read(struct hwrng *rng, void *data,
 	ret = u2fzero_recv(dev, &req, &resp);
 
 	/* ignore errors or packets without data */
-	if (ret < offsetof(struct u2f_hid_msg, init.data))
+	if (ret < min_length)
 		return 0;
 
 	/* only take the minimum amount of data it is safe to take */
-	actual_length = min3((size_t)ret - offsetof(struct u2f_hid_msg,
-		init.data), U2F_HID_MSG_LEN(resp), max);
+	actual_length = min3((size_t)ret - min_length,
+		U2F_HID_MSG_LEN(resp), max);
 
 	memcpy(data, resp.init.data, actual_length);
 
-- 
GitLab


From 4310970d0b4db03e769dcfc8e3f756ce4b789a01 Mon Sep 17 00:00:00 2001
From: Andrej Shadura <andrew.shadura@collabora.co.uk>
Date: Tue, 19 Oct 2021 17:29:17 +0200
Subject: [PATCH 1380/4878] HID: u2fzero: properly handle timeouts in
 usb_submit_urb

[ Upstream commit 43775e62c4b784f44a159e13ba80e6146a42d502 ]

The wait_for_completion_timeout function returns 0 if timed out or a
positive value if completed. Hence, "less than zero" comparison always
misses timeouts and doesn't kill the URB as it should, leading to
re-sending it while it is active.

Fixes: 42337b9d4d95 ("HID: add driver for U2F Zero built-in LED and RNG")
Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-u2fzero.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-u2fzero.c b/drivers/hid/hid-u2fzero.c
index 94f78ffb76d04..67ae2b18e33ac 100644
--- a/drivers/hid/hid-u2fzero.c
+++ b/drivers/hid/hid-u2fzero.c
@@ -132,7 +132,7 @@ static int u2fzero_recv(struct u2fzero_device *dev,
 
 	ret = (wait_for_completion_timeout(
 		&ctx.done, msecs_to_jiffies(USB_CTRL_SET_TIMEOUT)));
-	if (ret < 0) {
+	if (ret == 0) {
 		usb_kill_urb(dev->urb);
 		hid_err(hdev, "urb submission timed out");
 	} else {
-- 
GitLab


From c0faad6e9d56ef6ef95a6798a6ce3ef2b9d70709 Mon Sep 17 00:00:00 2001
From: Bixuan Cui <cuibixuan@linux.alibaba.com>
Date: Thu, 28 Oct 2021 15:28:22 +0800
Subject: [PATCH 1381/4878] powerpc/44x/fsp2: add missing of_node_put

[ Upstream commit 290fe8aa69ef5c51c778c0bb33f8ef0181c769f5 ]

Early exits from for_each_compatible_node() should decrement the
node reference counter.  Reported by Coccinelle:

./arch/powerpc/platforms/44x/fsp2.c:206:1-25: WARNING: Function
"for_each_compatible_node" should have of_node_put() before return
around line 218.

Fixes: 7813043e1bbc ("powerpc/44x/fsp2: Add irq error handlers")
Signed-off-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1635406102-88719-1-git-send-email-cuibixuan@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/44x/fsp2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/44x/fsp2.c b/arch/powerpc/platforms/44x/fsp2.c
index b299e43f5ef94..823397c802def 100644
--- a/arch/powerpc/platforms/44x/fsp2.c
+++ b/arch/powerpc/platforms/44x/fsp2.c
@@ -208,6 +208,7 @@ static void node_irq_request(const char *compat, irq_handler_t errirq_handler)
 		if (irq == NO_IRQ) {
 			pr_err("device tree node %pOFn is missing a interrupt",
 			      np);
+			of_node_put(np);
 			return;
 		}
 
@@ -215,6 +216,7 @@ static void node_irq_request(const char *compat, irq_handler_t errirq_handler)
 		if (rc) {
 			pr_err("fsp_of_probe: request_irq failed: np=%pOF rc=%d",
 			      np, rc);
+			of_node_put(np);
 			return;
 		}
 	}
-- 
GitLab


From ef9d007a91f556e9b5b46477dfa27cc91d5baca9 Mon Sep 17 00:00:00 2001
From: Lucas Tanure <tanureal@opensource.cirrus.com>
Date: Sat, 6 Mar 2021 18:55:45 +0000
Subject: [PATCH 1382/4878] ASoC: cs42l42: Disable regulators if probe fails

[ Upstream commit 1abca8e1c77bd9c5f5c0bed21c5b075b6852a178 ]

In case of cs42l42_i2c_probe() fail, the regulators were left enabled.

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210306185553.62053-8-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/cs42l42.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index 191431868c678..eb1fcc5be0573 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1781,8 +1781,10 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 	/* Reset the Device */
 	cs42l42->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,
 		"reset", GPIOD_OUT_LOW);
-	if (IS_ERR(cs42l42->reset_gpio))
-		return PTR_ERR(cs42l42->reset_gpio);
+	if (IS_ERR(cs42l42->reset_gpio)) {
+		ret = PTR_ERR(cs42l42->reset_gpio);
+		goto err_disable;
+	}
 
 	if (cs42l42->reset_gpio) {
 		dev_dbg(&i2c_client->dev, "Found reset GPIO\n");
@@ -1817,13 +1819,13 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 		dev_err(&i2c_client->dev,
 			"CS42L42 Device ID (%X). Expected %X\n",
 			devid, CS42L42_CHIP_ID);
-		return ret;
+		goto err_disable;
 	}
 
 	ret = regmap_read(cs42l42->regmap, CS42L42_REVID, &reg);
 	if (ret < 0) {
 		dev_err(&i2c_client->dev, "Get Revision ID failed\n");
-		return ret;
+		goto err_disable;
 	}
 
 	dev_info(&i2c_client->dev,
@@ -1849,7 +1851,7 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 	if (i2c_client->dev.of_node) {
 		ret = cs42l42_handle_device_data(i2c_client, cs42l42);
 		if (ret != 0)
-			return ret;
+			goto err_disable;
 	}
 
 	/* Setup headset detection */
-- 
GitLab


From cb0fdd9aae01df8444a490b570770ea332a34322 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.cirrus.com>
Date: Mon, 26 Apr 2021 16:53:02 +0100
Subject: [PATCH 1383/4878] ASoC: cs42l42: Use device_property API instead of
 of_property

[ Upstream commit ab78322a0dc8e5e472ff66ac7e18c94acc17587f ]

Use the device_property APIs so that the code will work on devicetree
and ACPI systems.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210426155303.853236-2-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/cs42l42.c | 60 +++++++++++++++-----------------------
 1 file changed, 24 insertions(+), 36 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index eb1fcc5be0573..e56d3c9c39756 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -20,10 +20,9 @@
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/gpio/consumer.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/of_device.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -1554,17 +1553,15 @@ static const unsigned int threshold_defaults[] = {
 	CS42L42_HS_DET_LEVEL_1
 };
 
-static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
+static int cs42l42_handle_device_data(struct device *dev,
 					struct cs42l42_private *cs42l42)
 {
-	struct device_node *np = i2c_client->dev.of_node;
 	unsigned int val;
-	unsigned int thresholds[CS42L42_NUM_BIASES];
+	u32 thresholds[CS42L42_NUM_BIASES];
 	int ret;
 	int i;
 
-	ret = of_property_read_u32(np, "cirrus,ts-inv", &val);
-
+	ret = device_property_read_u32(dev, "cirrus,ts-inv", &val);
 	if (!ret) {
 		switch (val) {
 		case CS42L42_TS_INV_EN:
@@ -1572,7 +1569,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			cs42l42->ts_inv = val;
 			break;
 		default:
-			dev_err(&i2c_client->dev,
+			dev_err(dev,
 				"Wrong cirrus,ts-inv DT value %d\n",
 				val);
 			cs42l42->ts_inv = CS42L42_TS_INV_DIS;
@@ -1585,8 +1582,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			CS42L42_TS_INV_MASK,
 			(cs42l42->ts_inv << CS42L42_TS_INV_SHIFT));
 
-	ret = of_property_read_u32(np, "cirrus,ts-dbnc-rise", &val);
-
+	ret = device_property_read_u32(dev, "cirrus,ts-dbnc-rise", &val);
 	if (!ret) {
 		switch (val) {
 		case CS42L42_TS_DBNCE_0:
@@ -1600,7 +1596,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			cs42l42->ts_dbnc_rise = val;
 			break;
 		default:
-			dev_err(&i2c_client->dev,
+			dev_err(dev,
 				"Wrong cirrus,ts-dbnc-rise DT value %d\n",
 				val);
 			cs42l42->ts_dbnc_rise = CS42L42_TS_DBNCE_1000;
@@ -1614,8 +1610,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			(cs42l42->ts_dbnc_rise <<
 			CS42L42_TS_RISE_DBNCE_TIME_SHIFT));
 
-	ret = of_property_read_u32(np, "cirrus,ts-dbnc-fall", &val);
-
+	ret = device_property_read_u32(dev, "cirrus,ts-dbnc-fall", &val);
 	if (!ret) {
 		switch (val) {
 		case CS42L42_TS_DBNCE_0:
@@ -1629,7 +1624,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			cs42l42->ts_dbnc_fall = val;
 			break;
 		default:
-			dev_err(&i2c_client->dev,
+			dev_err(dev,
 				"Wrong cirrus,ts-dbnc-fall DT value %d\n",
 				val);
 			cs42l42->ts_dbnc_fall = CS42L42_TS_DBNCE_0;
@@ -1643,13 +1638,12 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			(cs42l42->ts_dbnc_fall <<
 			CS42L42_TS_FALL_DBNCE_TIME_SHIFT));
 
-	ret = of_property_read_u32(np, "cirrus,btn-det-init-dbnce", &val);
-
+	ret = device_property_read_u32(dev, "cirrus,btn-det-init-dbnce", &val);
 	if (!ret) {
 		if (val <= CS42L42_BTN_DET_INIT_DBNCE_MAX)
 			cs42l42->btn_det_init_dbnce = val;
 		else {
-			dev_err(&i2c_client->dev,
+			dev_err(dev,
 				"Wrong cirrus,btn-det-init-dbnce DT value %d\n",
 				val);
 			cs42l42->btn_det_init_dbnce =
@@ -1660,14 +1654,13 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			CS42L42_BTN_DET_INIT_DBNCE_DEFAULT;
 	}
 
-	ret = of_property_read_u32(np, "cirrus,btn-det-event-dbnce", &val);
-
+	ret = device_property_read_u32(dev, "cirrus,btn-det-event-dbnce", &val);
 	if (!ret) {
 		if (val <= CS42L42_BTN_DET_EVENT_DBNCE_MAX)
 			cs42l42->btn_det_event_dbnce = val;
 		else {
-			dev_err(&i2c_client->dev,
-			"Wrong cirrus,btn-det-event-dbnce DT value %d\n", val);
+			dev_err(dev,
+				"Wrong cirrus,btn-det-event-dbnce DT value %d\n", val);
 			cs42l42->btn_det_event_dbnce =
 				CS42L42_BTN_DET_EVENT_DBNCE_DEFAULT;
 		}
@@ -1676,19 +1669,17 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			CS42L42_BTN_DET_EVENT_DBNCE_DEFAULT;
 	}
 
-	ret = of_property_read_u32_array(np, "cirrus,bias-lvls",
-				   (u32 *)thresholds, CS42L42_NUM_BIASES);
-
+	ret = device_property_read_u32_array(dev, "cirrus,bias-lvls",
+					     thresholds, ARRAY_SIZE(thresholds));
 	if (!ret) {
 		for (i = 0; i < CS42L42_NUM_BIASES; i++) {
 			if (thresholds[i] <= CS42L42_HS_DET_LEVEL_MAX)
 				cs42l42->bias_thresholds[i] = thresholds[i];
 			else {
-				dev_err(&i2c_client->dev,
-				"Wrong cirrus,bias-lvls[%d] DT value %d\n", i,
+				dev_err(dev,
+					"Wrong cirrus,bias-lvls[%d] DT value %d\n", i,
 					thresholds[i]);
-				cs42l42->bias_thresholds[i] =
-					threshold_defaults[i];
+				cs42l42->bias_thresholds[i] = threshold_defaults[i];
 			}
 		}
 	} else {
@@ -1696,8 +1687,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			cs42l42->bias_thresholds[i] = threshold_defaults[i];
 	}
 
-	ret = of_property_read_u32(np, "cirrus,hs-bias-ramp-rate", &val);
-
+	ret = device_property_read_u32(dev, "cirrus,hs-bias-ramp-rate", &val);
 	if (!ret) {
 		switch (val) {
 		case CS42L42_HSBIAS_RAMP_FAST_RISE_SLOW_FALL:
@@ -1717,7 +1707,7 @@ static int cs42l42_handle_device_data(struct i2c_client *i2c_client,
 			cs42l42->hs_bias_ramp_time = CS42L42_HSBIAS_RAMP_TIME3;
 			break;
 		default:
-			dev_err(&i2c_client->dev,
+			dev_err(dev,
 				"Wrong cirrus,hs-bias-ramp-rate DT value %d\n",
 				val);
 			cs42l42->hs_bias_ramp_rate = CS42L42_HSBIAS_RAMP_SLOW;
@@ -1848,11 +1838,9 @@ static int cs42l42_i2c_probe(struct i2c_client *i2c_client,
 			(1 << CS42L42_ADC_PDN_SHIFT) |
 			(0 << CS42L42_PDN_ALL_SHIFT));
 
-	if (i2c_client->dev.of_node) {
-		ret = cs42l42_handle_device_data(i2c_client, cs42l42);
-		if (ret != 0)
-			goto err_disable;
-	}
+	ret = cs42l42_handle_device_data(&i2c_client->dev, cs42l42);
+	if (ret != 0)
+		goto err_disable;
 
 	/* Setup headset detection */
 	cs42l42_setup_hs_type_detect(cs42l42);
-- 
GitLab


From 80e6643393b7c44342d2347281c98db6069ee466 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.cirrus.com>
Date: Thu, 28 Oct 2021 15:09:01 +0100
Subject: [PATCH 1384/4878] ASoC: cs42l42: Correct configuring of switch
 inversion from ts-inv

[ Upstream commit 778a0cbef5fb76bf506f84938517bb77e7a1c478 ]

The setting from the cirrus,ts-inv property should be applied to the
TIP_SENSE_INV bit, as this is the one that actually affects the jack
detect block. The TS_INV bit only swaps the meaning of the PLUG and
UNPLUG interrupts and should always be 1 for the interrupts to have
the normal meaning.

Due to some misunderstanding the driver had been implemented to
configure the TS_INV bit based on the jack switch polarity. This made
the interrupts behave the correct way around, but left the jack detect
block, button detect and analogue circuits always interpreting an open
switch as unplugged.

The signal chain inside the codec is:

SENSE pin -> TIP_SENSE_INV -> TS_INV -> (invert) -> interrupts
                  |
                  v
             Jack detect,
          button detect and
            analog control

As the TIP_SENSE_INV already performs the necessary inversion the
TS_INV bit never needs to change. It must always be 1 to yield the
expected interrupt behaviour.

Some extra confusion has arisen because of the additional invert in the
interrupt path, meaning that a value applied to the TS_INV bit produces
the opposite effect of applying it to the TIP_SENSE_INV bit. The ts-inv
property has therefore always had the opposite effect to what might be
expected (0 = inverted, 1 = not inverted). To maintain the meaning of
the ts-inv property it must be inverted when applied to TIP_SENSE_INV.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 2c394ca79604 ("ASoC: Add support for CS42L42 codec")
Link: https://lore.kernel.org/r/20211028140902.11786-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/cs42l42.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c
index e56d3c9c39756..54c1ede59b8b7 100644
--- a/sound/soc/codecs/cs42l42.c
+++ b/sound/soc/codecs/cs42l42.c
@@ -1529,12 +1529,15 @@ static void cs42l42_setup_hs_type_detect(struct cs42l42_private *cs42l42)
 			(1 << CS42L42_HS_CLAMP_DISABLE_SHIFT));
 
 	/* Enable the tip sense circuit */
+	regmap_update_bits(cs42l42->regmap, CS42L42_TSENSE_CTL,
+			   CS42L42_TS_INV_MASK, CS42L42_TS_INV_MASK);
+
 	regmap_update_bits(cs42l42->regmap, CS42L42_TIPSENSE_CTL,
 			CS42L42_TIP_SENSE_CTRL_MASK |
 			CS42L42_TIP_SENSE_INV_MASK |
 			CS42L42_TIP_SENSE_DEBOUNCE_MASK,
 			(3 << CS42L42_TIP_SENSE_CTRL_SHIFT) |
-			(0 << CS42L42_TIP_SENSE_INV_SHIFT) |
+			(!cs42l42->ts_inv << CS42L42_TIP_SENSE_INV_SHIFT) |
 			(2 << CS42L42_TIP_SENSE_DEBOUNCE_SHIFT));
 
 	/* Save the initial status of the tip sense */
@@ -1578,10 +1581,6 @@ static int cs42l42_handle_device_data(struct device *dev,
 		cs42l42->ts_inv = CS42L42_TS_INV_DIS;
 	}
 
-	regmap_update_bits(cs42l42->regmap, CS42L42_TSENSE_CTL,
-			CS42L42_TS_INV_MASK,
-			(cs42l42->ts_inv << CS42L42_TS_INV_SHIFT));
-
 	ret = device_property_read_u32(dev, "cirrus,ts-dbnc-rise", &val);
 	if (!ret) {
 		switch (val) {
-- 
GitLab


From c8447cb14a125ba25255e4d6b380ce7a14a3fecd Mon Sep 17 00:00:00 2001
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Date: Wed, 20 Oct 2021 19:23:23 +0800
Subject: [PATCH 1385/4878] virtio_ring: check desc == NULL when using indirect
 with packed

[ Upstream commit fc6d70f40b3d0b3219e2026d05be0409695f620d ]

When using indirect with packed, we don't check for allocation failures.
This patch checks that and fall back on direct.

Fixes: 1ce9e6055fa0 ("virtio_ring: introduce packed ring support")
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20211020112323.67466-3-xuanzhuo@linux.alibaba.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/virtio/virtio_ring.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 6c730d6d50f71..e9432dbbec0a7 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -992,6 +992,8 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq,
 
 	head = vq->packed.next_avail_idx;
 	desc = alloc_indirect_packed(total_sg, gfp);
+	if (!desc)
+		return -ENOMEM;
 
 	if (unlikely(vq->vq.num_free < 1)) {
 		pr_debug("Can't add buf len 1 - avail = 0\n");
@@ -1103,6 +1105,7 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq,
 	unsigned int i, n, c, descs_used, err_idx;
 	__le16 head_flags, flags;
 	u16 head, id, prev, curr, avail_used_flags;
+	int err;
 
 	START_USE(vq);
 
@@ -1118,9 +1121,14 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq,
 
 	BUG_ON(total_sg == 0);
 
-	if (virtqueue_use_indirect(_vq, total_sg))
-		return virtqueue_add_indirect_packed(vq, sgs, total_sg,
-				out_sgs, in_sgs, data, gfp);
+	if (virtqueue_use_indirect(_vq, total_sg)) {
+		err = virtqueue_add_indirect_packed(vq, sgs, total_sg, out_sgs,
+						    in_sgs, data, gfp);
+		if (err != -ENOMEM)
+			return err;
+
+		/* fall back on direct */
+	}
 
 	head = vq->packed.next_avail_idx;
 	avail_used_flags = vq->packed.avail_used_flags;
-- 
GitLab


From dbdf0f2207596c0d48f5db9d70f6e4c5a299d761 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 29 Oct 2021 11:58:16 +0200
Subject: [PATCH 1386/4878] mips: cm: Convert to bitfield API to fix
 out-of-bounds access

[ Upstream commit 18b8f5b6fc53d097cadb94a93d8d6566ba88e389 ]

mips_cm_error_report() extracts the cause and other cause from the error
register using shifts.  This works fine for the former, as it is stored
in the top bits, and the shift will thus remove all non-related bits.
However, the latter is stored in the bottom bits, hence thus needs masking
to get rid of non-related bits.  Without such masking, using it as an
index into the cm2_causes[] array will lead to an out-of-bounds access,
probably causing a crash.

Fix this by using FIELD_GET() instead.  Bite the bullet and convert all
MIPS CM handling to the bitfield API, to improve readability and safety.

Fixes: 3885c2b463f6a236 ("MIPS: CM: Add support for reporting CM cache errors")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/include/asm/mips-cm.h | 12 ++++++------
 arch/mips/kernel/mips-cm.c      | 21 ++++++++++-----------
 2 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index aeae2effa123d..23c67c0871b17 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -11,6 +11,7 @@
 #ifndef __MIPS_ASM_MIPS_CM_H__
 #define __MIPS_ASM_MIPS_CM_H__
 
+#include <linux/bitfield.h>
 #include <linux/bitops.h>
 #include <linux/errno.h>
 
@@ -153,8 +154,8 @@ GCR_ACCESSOR_RO(32, 0x030, rev)
 #define CM_GCR_REV_MINOR			GENMASK(7, 0)
 
 #define CM_ENCODE_REV(major, minor) \
-		(((major) << __ffs(CM_GCR_REV_MAJOR)) | \
-		 ((minor) << __ffs(CM_GCR_REV_MINOR)))
+		(FIELD_PREP(CM_GCR_REV_MAJOR, major) | \
+		 FIELD_PREP(CM_GCR_REV_MINOR, minor))
 
 #define CM_REV_CM2				CM_ENCODE_REV(6, 0)
 #define CM_REV_CM2_5				CM_ENCODE_REV(7, 0)
@@ -362,10 +363,10 @@ static inline int mips_cm_revision(void)
 static inline unsigned int mips_cm_max_vp_width(void)
 {
 	extern int smp_num_siblings;
-	uint32_t cfg;
 
 	if (mips_cm_revision() >= CM_REV_CM3)
-		return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW;
+		return FIELD_GET(CM_GCR_SYS_CONFIG2_MAXVPW,
+				 read_gcr_sys_config2());
 
 	if (mips_cm_present()) {
 		/*
@@ -373,8 +374,7 @@ static inline unsigned int mips_cm_max_vp_width(void)
 		 * number of VP(E)s, and if that ever changes then this will
 		 * need revisiting.
 		 */
-		cfg = read_gcr_cl_config() & CM_GCR_Cx_CONFIG_PVPE;
-		return (cfg >> __ffs(CM_GCR_Cx_CONFIG_PVPE)) + 1;
+		return FIELD_GET(CM_GCR_Cx_CONFIG_PVPE, read_gcr_cl_config()) + 1;
 	}
 
 	if (IS_ENABLED(CONFIG_SMP))
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index f60af512c8773..72c8374a39002 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -221,8 +221,7 @@ static void mips_cm_probe_l2sync(void)
 	phys_addr_t addr;
 
 	/* L2-only sync was introduced with CM major revision 6 */
-	major_rev = (read_gcr_rev() & CM_GCR_REV_MAJOR) >>
-		__ffs(CM_GCR_REV_MAJOR);
+	major_rev = FIELD_GET(CM_GCR_REV_MAJOR, read_gcr_rev());
 	if (major_rev < 6)
 		return;
 
@@ -305,13 +304,13 @@ void mips_cm_lock_other(unsigned int cluster, unsigned int core,
 	preempt_disable();
 
 	if (cm_rev >= CM_REV_CM3) {
-		val = core << __ffs(CM3_GCR_Cx_OTHER_CORE);
-		val |= vp << __ffs(CM3_GCR_Cx_OTHER_VP);
+		val = FIELD_PREP(CM3_GCR_Cx_OTHER_CORE, core) |
+		      FIELD_PREP(CM3_GCR_Cx_OTHER_VP, vp);
 
 		if (cm_rev >= CM_REV_CM3_5) {
 			val |= CM_GCR_Cx_OTHER_CLUSTER_EN;
-			val |= cluster << __ffs(CM_GCR_Cx_OTHER_CLUSTER);
-			val |= block << __ffs(CM_GCR_Cx_OTHER_BLOCK);
+			val |= FIELD_PREP(CM_GCR_Cx_OTHER_CLUSTER, cluster);
+			val |= FIELD_PREP(CM_GCR_Cx_OTHER_BLOCK, block);
 		} else {
 			WARN_ON(cluster != 0);
 			WARN_ON(block != CM_GCR_Cx_OTHER_BLOCK_LOCAL);
@@ -341,7 +340,7 @@ void mips_cm_lock_other(unsigned int cluster, unsigned int core,
 		spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
 				  per_cpu(cm_core_lock_flags, curr_core));
 
-		val = core << __ffs(CM_GCR_Cx_OTHER_CORENUM);
+		val = FIELD_PREP(CM_GCR_Cx_OTHER_CORENUM, core);
 	}
 
 	write_gcr_cl_other(val);
@@ -385,8 +384,8 @@ void mips_cm_error_report(void)
 	cm_other = read_gcr_error_mult();
 
 	if (revision < CM_REV_CM3) { /* CM2 */
-		cause = cm_error >> __ffs(CM_GCR_ERROR_CAUSE_ERRTYPE);
-		ocause = cm_other >> __ffs(CM_GCR_ERROR_MULT_ERR2ND);
+		cause = FIELD_GET(CM_GCR_ERROR_CAUSE_ERRTYPE, cm_error);
+		ocause = FIELD_GET(CM_GCR_ERROR_MULT_ERR2ND, cm_other);
 
 		if (!cause)
 			return;
@@ -444,8 +443,8 @@ void mips_cm_error_report(void)
 		ulong core_id_bits, vp_id_bits, cmd_bits, cmd_group_bits;
 		ulong cm3_cca_bits, mcp_bits, cm3_tr_bits, sched_bit;
 
-		cause = cm_error >> __ffs64(CM3_GCR_ERROR_CAUSE_ERRTYPE);
-		ocause = cm_other >> __ffs(CM_GCR_ERROR_MULT_ERR2ND);
+		cause = FIELD_GET(CM3_GCR_ERROR_CAUSE_ERRTYPE, cm_error);
+		ocause = FIELD_GET(CM_GCR_ERROR_MULT_ERR2ND, cm_other);
 
 		if (!cause)
 			return;
-- 
GitLab


From 9c9c33ea4cabd76348bdd006ca9b6bf55c217733 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 31 Oct 2021 16:25:22 +0100
Subject: [PATCH 1387/4878] power: supply: bq27xxx: Fix kernel crash on IRQ
 handler register error

[ Upstream commit cdf10ffe8f626d8a2edc354abf063df0078b2d71 ]

When registering the IRQ handler fails, do not just return the error code,
this will free the devm_kzalloc()-ed data struct while leaving the queued
work queued and the registered power_supply registered with both of them
now pointing to free-ed memory, resulting in various kernel crashes
soon afterwards.

Instead properly tear-down things on IRQ handler register errors.

Fixes: 703df6c09795 ("power: bq27xxx_battery: Reorganize I2C into a module")
Cc: Andrew F. Davis <afd@ti.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/bq27xxx_battery_i2c.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/bq27xxx_battery_i2c.c b/drivers/power/supply/bq27xxx_battery_i2c.c
index eb4f4284982fa..3012eb13a08cb 100644
--- a/drivers/power/supply/bq27xxx_battery_i2c.c
+++ b/drivers/power/supply/bq27xxx_battery_i2c.c
@@ -187,7 +187,8 @@ static int bq27xxx_battery_i2c_probe(struct i2c_client *client,
 			dev_err(&client->dev,
 				"Unable to register IRQ %d error %d\n",
 				client->irq, ret);
-			return ret;
+			bq27xxx_battery_teardown(di);
+			goto err_failed;
 		}
 	}
 
-- 
GitLab


From 851b622e7b4f28c0fdbc543fadf4256e29927b04 Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Sun, 4 Oct 2020 07:24:22 -0700
Subject: [PATCH 1388/4878] apparmor: fix error check

[ Upstream commit d108370c644b153382632b3e5511ade575c91c86 ]

clang static analysis reports this representative problem:

label.c:1463:16: warning: Assigned value is garbage or undefined
        label->hname = name;
                     ^ ~~~~

In aa_update_label_name(), this the problem block of code

	if (aa_label_acntsxprint(&name, ...) == -1)
		return res;

On failure, aa_label_acntsxprint() has a more complicated return
that just -1.  So check for a negative return.

It was also noted that the aa_label_acntsxprint() main comment refers
to a nonexistent parameter, so clean up the comment.

Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels")
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/apparmor/label.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index e68bcedca976b..6222fdfebe4e5 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -1454,7 +1454,7 @@ bool aa_update_label_name(struct aa_ns *ns, struct aa_label *label, gfp_t gfp)
 	if (label->hname || labels_ns(label) != ns)
 		return res;
 
-	if (aa_label_acntsxprint(&name, ns, label, FLAGS_NONE, gfp) == -1)
+	if (aa_label_acntsxprint(&name, ns, label, FLAGS_NONE, gfp) < 0)
 		return res;
 
 	ls = labels_set(label);
@@ -1704,7 +1704,7 @@ int aa_label_asxprint(char **strp, struct aa_ns *ns, struct aa_label *label,
 
 /**
  * aa_label_acntsxprint - allocate a __counted string buffer and print label
- * @strp: buffer to write to. (MAY BE NULL if @size == 0)
+ * @strp: buffer to write to.
  * @ns: namespace profile is being viewed from
  * @label: label to view (NOT NULL)
  * @flags: flags controlling what label info is printed
-- 
GitLab


From 602ab1fd40e2c5cb8d3664379da967528833844c Mon Sep 17 00:00:00 2001
From: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Date: Mon, 12 Jul 2021 14:39:12 +0200
Subject: [PATCH 1389/4878] rpmsg: Fix rpmsg_create_ept return when RPMSG
 config is not defined

[ Upstream commit 537d3af1bee8ad1415fda9b622d1ea6d1ae76dfa ]

According to the description of the rpmsg_create_ept in rpmsg_core.c
the function should return NULL on error.

Fixes: 2c8a57088045 ("rpmsg: Provide function stubs for API")
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210712123912.10672-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/rpmsg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index 9fe156d1c018e..a68972b097b72 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -177,7 +177,7 @@ static inline struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_device *rpdev
 	/* This shouldn't be possible */
 	WARN_ON(1);
 
-	return ERR_PTR(-ENXIO);
+	return NULL;
 }
 
 static inline int rpmsg_send(struct rpmsg_endpoint *ept, void *data, int len)
-- 
GitLab


From f3492c4a92644cb54ec2c6daff6c428aebfc36dc Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 14 Sep 2021 12:30:32 -0400
Subject: [PATCH 1390/4878] nfsd: don't alloc under spinlock in
 rpc_parse_scope_id

[ Upstream commit 9b6e27d01adcec58e046c624874f8a124e8b07ec ]

Dan Carpenter says:

  The patch d20c11d86d8f: "nfsd: Protect session creation and client
  confirm using client_lock" from Jul 30, 2014, leads to the following
  Smatch static checker warning:

        net/sunrpc/addr.c:178 rpc_parse_scope_id()
        warn: sleeping in atomic context

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: d20c11d86d8f ("nfsd: Protect session creation and client...")
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sunrpc/addr.c | 40 ++++++++++++++++++----------------------
 1 file changed, 18 insertions(+), 22 deletions(-)

diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index 6e4dbd577a39f..d435bffc61999 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -162,8 +162,10 @@ static int rpc_parse_scope_id(struct net *net, const char *buf,
 			      const size_t buflen, const char *delim,
 			      struct sockaddr_in6 *sin6)
 {
-	char *p;
+	char p[IPV6_SCOPE_ID_LEN + 1];
 	size_t len;
+	u32 scope_id = 0;
+	struct net_device *dev;
 
 	if ((buf + buflen) == delim)
 		return 1;
@@ -175,29 +177,23 @@ static int rpc_parse_scope_id(struct net *net, const char *buf,
 		return 0;
 
 	len = (buf + buflen) - delim - 1;
-	p = kmemdup_nul(delim + 1, len, GFP_KERNEL);
-	if (p) {
-		u32 scope_id = 0;
-		struct net_device *dev;
-
-		dev = dev_get_by_name(net, p);
-		if (dev != NULL) {
-			scope_id = dev->ifindex;
-			dev_put(dev);
-		} else {
-			if (kstrtou32(p, 10, &scope_id) != 0) {
-				kfree(p);
-				return 0;
-			}
-		}
-
-		kfree(p);
-
-		sin6->sin6_scope_id = scope_id;
-		return 1;
+	if (len > IPV6_SCOPE_ID_LEN)
+		return 0;
+
+	memcpy(p, delim + 1, len);
+	p[len] = 0;
+
+	dev = dev_get_by_name(net, p);
+	if (dev != NULL) {
+		scope_id = dev->ifindex;
+		dev_put(dev);
+	} else {
+		if (kstrtou32(p, 10, &scope_id) != 0)
+			return 0;
 	}
 
-	return 0;
+	sin6->sin6_scope_id = scope_id;
+	return 1;
 }
 
 static size_t rpc_pton6(struct net *net, const char *buf, const size_t buflen,
-- 
GitLab


From 9d438dbf7342f5cd231b8009bc30076db0f5b925 Mon Sep 17 00:00:00 2001
From: Kewei Xu <kewei.xu@mediatek.com>
Date: Fri, 17 Sep 2021 18:14:10 +0800
Subject: [PATCH 1391/4878] i2c: mediatek: fixing the incorrect register offset

[ Upstream commit b8228aea5a19d5111a7bf44f7de6749d1f5d487a ]

The reason for the modification here is that the previous
offset information is incorrect, OFFSET_DEBUGSTAT = 0xE4 is
the correct value.

Fixes: 25708278f810 ("i2c: mediatek: Add i2c support for MediaTek MT8183")
Signed-off-by: Kewei Xu <kewei.xu@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-mt65xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 0af2784cbd0d9..265635db29aa5 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -195,7 +195,7 @@ static const u16 mt_i2c_regs_v2[] = {
 	[OFFSET_CLOCK_DIV] = 0x48,
 	[OFFSET_SOFTRESET] = 0x50,
 	[OFFSET_SCL_MIS_COMP_POINT] = 0x90,
-	[OFFSET_DEBUGSTAT] = 0xe0,
+	[OFFSET_DEBUGSTAT] = 0xe4,
 	[OFFSET_DEBUGCTRL] = 0xe8,
 	[OFFSET_FIFO_STAT] = 0xf4,
 	[OFFSET_FIFO_THRESH] = 0xf8,
-- 
GitLab


From 8ac076ce719321901ebd2df30fba690671adbd7e Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Wed, 29 Sep 2021 08:12:53 -0400
Subject: [PATCH 1392/4878] NFS: Fix dentry verifier races

[ Upstream commit cec08f452a687fce9dfdf47946d00a1d12a8bec5 ]

If the directory changed while we were revalidating the dentry, then
don't update the dentry verifier. There is no value in setting the
verifier to an older value, and we could end up overwriting a more up to
date verifier from a parallel revalidation.

Fixes: efeda80da38d ("NFSv4: Fix revalidation of dentries with delegations")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/dir.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index c837675cd395a..8b963c72dd3b1 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1061,13 +1061,12 @@ static bool nfs_verifier_is_delegated(struct dentry *dentry)
 static void nfs_set_verifier_locked(struct dentry *dentry, unsigned long verf)
 {
 	struct inode *inode = d_inode(dentry);
+	struct inode *dir = d_inode(dentry->d_parent);
 
-	if (!nfs_verifier_is_delegated(dentry) &&
-	    !nfs_verify_change_attribute(d_inode(dentry->d_parent), verf))
-		goto out;
+	if (!nfs_verify_change_attribute(dir, verf))
+		return;
 	if (inode && NFS_PROTO(inode)->have_delegation(inode, FMODE_READ))
 		nfs_set_verifier_delegated(&verf);
-out:
 	dentry->d_time = verf;
 }
 
-- 
GitLab


From e94c59b64e6ceb7b78fcdcb9a927f7b07461fff4 Mon Sep 17 00:00:00 2001
From: Baptiste Lepers <baptiste.lepers@gmail.com>
Date: Mon, 6 Sep 2021 11:59:24 +1000
Subject: [PATCH 1393/4878] pnfs/flexfiles: Fix misplaced barrier in
 nfs4_ff_layout_prepare_ds

[ Upstream commit a2915fa06227b056a8f9b0d79b61dca08ad5cfc6 ]

_nfs4_pnfs_v3/v4_ds_connect do
   some work
   smp_wmb
   ds->ds_clp = clp;

And nfs4_ff_layout_prepare_ds currently does
   smp_rmb
   if(ds->ds_clp)
      ...

This patch places the smp_rmb after the if. This ensures that following
reads only happen once nfs4_ff_layout_prepare_ds has checked that data
has been properly initialized.

Fixes: d67ae825a59d6 ("pnfs/flexfiles: Add the FlexFile Layout Driver")
Signed-off-by: Baptiste Lepers <baptiste.lepers@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/flexfilelayout/flexfilelayoutdev.c | 4 ++--
 fs/nfs/pnfs_nfs.c                         | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 3eda40a320a53..1f12297109b41 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -378,10 +378,10 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg,
 		goto noconnect;
 
 	ds = mirror->mirror_ds->ds;
+	if (READ_ONCE(ds->ds_clp))
+		goto out;
 	/* matching smp_wmb() in _nfs4_pnfs_v3/4_ds_connect */
 	smp_rmb();
-	if (ds->ds_clp)
-		goto out;
 
 	/* FIXME: For now we assume the server sent only one version of NFS
 	 * to use for the DS.
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index 251c4a3aef9a6..37b52b53a7e53 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -876,7 +876,7 @@ static int _nfs4_pnfs_v3_ds_connect(struct nfs_server *mds_srv,
 	}
 
 	smp_wmb();
-	ds->ds_clp = clp;
+	WRITE_ONCE(ds->ds_clp, clp);
 	dprintk("%s [new] addr: %s\n", __func__, ds->ds_remotestr);
 out:
 	return status;
@@ -949,7 +949,7 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv,
 	}
 
 	smp_wmb();
-	ds->ds_clp = clp;
+	WRITE_ONCE(ds->ds_clp, clp);
 	dprintk("%s [new] addr: %s\n", __func__, ds->ds_remotestr);
 out:
 	return status;
-- 
GitLab


From 2e548581fe5b48730d814916bd6bb8f8d8b5375a Mon Sep 17 00:00:00 2001
From: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Date: Thu, 7 Oct 2021 02:37:06 -0400
Subject: [PATCH 1394/4878] drm/plane-helper: fix uninitialized variable
 reference

[ Upstream commit 7be28bd73f23e53d6e7f5fe891ba9503fc0c7210 ]

drivers/gpu/drm/drm_plane_helper.c: In function 'drm_primary_helper_update':
drivers/gpu/drm/drm_plane_helper.c:113:32: error: 'visible' is used uninitialized [-Werror=uninitialized]
  113 |         struct drm_plane_state plane_state = {
      |                                ^~~~~~~~~~~
drivers/gpu/drm/drm_plane_helper.c:178:14: note: 'visible' was declared here
  178 |         bool visible;
      |              ^~~~~~~
cc1: all warnings being treated as errors

visible is an output, not an input. in practice this use might turn out
OK but it's still UB.

Fixes: df86af9133b4 ("drm/plane-helper: Add drm_plane_helper_check_state()")
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/20211007063706.305984-1-alex_y_xu@yahoo.ca
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_plane_helper.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
index 3aae7ea522f23..c3f2292dc93d5 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -123,7 +123,6 @@ static int drm_plane_helper_check_update(struct drm_plane *plane,
 		.crtc_w = drm_rect_width(dst),
 		.crtc_h = drm_rect_height(dst),
 		.rotation = rotation,
-		.visible = *visible,
 	};
 	struct drm_crtc_state crtc_state = {
 		.crtc = crtc,
-- 
GitLab


From ec6dba3ffe3fff8297d88edc983900352a10ba4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Tue, 5 Oct 2021 20:09:42 +0200
Subject: [PATCH 1395/4878] PCI: aardvark: Don't spam about PIO Response Status
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 464de7e7fff767e87429cd7be09c4f2cb50a6ccb ]

Use dev_dbg() instead of dev_err() in advk_pcie_check_pio_status().

For example CRS is not an error status, it just says that the request
should be retried.

Link: https://lore.kernel.org/r/20211005180952.6812-4-kabel@kernel.org
Fixes: 8c39d710363c1 ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index ec7bafbe813f0..65762fddd9fc0 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -778,7 +778,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 	else
 		str_posted = "Posted";
 
-	dev_err(dev, "%s PIO Response Status: %s, %#x @ %#x\n",
+	dev_dbg(dev, "%s PIO Response Status: %s, %#x @ %#x\n",
 		str_posted, strcomp_status, reg, advk_readl(pcie, PIO_ADDR_LS));
 
 	return -EFAULT;
-- 
GitLab


From bea3213f191a36e34e652c0d964fc3977886a408 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:43 +0200
Subject: [PATCH 1396/4878] PCI: aardvark: Fix preserving PCI_EXP_RTCTL_CRSSVE
 flag on emulated bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit d419052bc6c60fa4ab2b5a51d5f1e55a66e2b4ff ]

Commit 43f5c77bcbd2 ("PCI: aardvark: Fix reporting CRS value") started
using CRSSVE flag for handling CRS responses.

PCI_EXP_RTCTL_CRSSVE flag is stored only in emulated config space buffer
and there is handler for PCI_EXP_RTCTL register. So every read operation
from config space automatically clears CRSSVE flag as it is not defined in
PCI_EXP_RTCTL read handler.

Fix this by reading current CRSSVE bit flag from emulated space buffer and
appending it to PCI_EXP_RTCTL read response.

Link: https://lore.kernel.org/r/20211005180952.6812-5-kabel@kernel.org
Fixes: 43f5c77bcbd2 ("PCI: aardvark: Fix reporting CRS value")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 65762fddd9fc0..5b34dea80885d 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -885,6 +885,7 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 	case PCI_EXP_RTCTL: {
 		u32 val = advk_readl(pcie, PCIE_ISR0_MASK_REG);
 		*value = (val & PCIE_MSG_PM_PME_MASK) ? 0 : PCI_EXP_RTCTL_PMEIE;
+		*value |= le16_to_cpu(bridge->pcie_conf.rootctl) & PCI_EXP_RTCTL_CRSSVE;
 		*value |= PCI_EXP_RTCAP_CRSVIS << 16;
 		return PCI_BRIDGE_EMUL_HANDLED;
 	}
-- 
GitLab


From 14943891857da24abe5bba4fa132986eb7842713 Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Fri, 8 Oct 2021 15:46:52 +0800
Subject: [PATCH 1397/4878] opp: Fix return in _opp_add_static_v2()

[ Upstream commit 27ff8187f13ecfec8a26fb1928e906f46f326cc5 ]

Fix sparse warning:
drivers/opp/of.c:924 _opp_add_static_v2() warn: passing zero to 'ERR_PTR'

For duplicate OPPs 'ret' be set to zero.

Fixes: deac8703da5f ("PM / OPP: _of_add_opp_table_v2(): increment count only if OPP is added")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/opp/of.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index f83f4f6d70349..5de46aa99d243 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -827,7 +827,7 @@ free_required_opps:
 free_opp:
 	_opp_free(new_opp);
 
-	return ERR_PTR(ret);
+	return ret ? ERR_PTR(ret) : NULL;
 }
 
 /* Initializes OPP tables based on new bindings */
-- 
GitLab


From 3e7b08ebf40fd1283c1d005362fe2a81902e027a Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Mon, 4 Oct 2021 15:44:16 -0400
Subject: [PATCH 1398/4878] NFS: Fix deadlocks in nfs_scan_commit_list()

[ Upstream commit 64a93dbf25d3a1368bb58ddf0f61d0a92d7479e3 ]

Partially revert commit 2ce209c42c01 ("NFS: Wait for requests that are
locked on the commit list"), since it can lead to deadlocks between
commit requests and nfs_join_page_group().
For now we should assume that any locked requests on the commit list are
either about to be removed and committed by another task, or the writes
they describe are about to be retransmitted. In either case, we should
not need to worry.

Fixes: 2ce209c42c01 ("NFS: Wait for requests that are locked on the commit list")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/write.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 639c34fec04a8..dc7201c83bc29 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1034,25 +1034,11 @@ nfs_scan_commit_list(struct list_head *src, struct list_head *dst,
 	struct nfs_page *req, *tmp;
 	int ret = 0;
 
-restart:
 	list_for_each_entry_safe(req, tmp, src, wb_list) {
 		kref_get(&req->wb_kref);
 		if (!nfs_lock_request(req)) {
-			int status;
-
-			/* Prevent deadlock with nfs_lock_and_join_requests */
-			if (!list_empty(dst)) {
-				nfs_release_request(req);
-				continue;
-			}
-			/* Ensure we make progress to prevent livelock */
-			mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex);
-			status = nfs_wait_on_request(req);
 			nfs_release_request(req);
-			mutex_lock(&NFS_I(cinfo->inode)->commit_mutex);
-			if (status < 0)
-				break;
-			goto restart;
+			continue;
 		}
 		nfs_request_remove_commit_list(req, cinfo);
 		clear_bit(PG_COMMIT_TO_DS, &req->wb_flags);
@@ -1924,6 +1910,7 @@ static int __nfs_commit_inode(struct inode *inode, int how,
 	int may_wait = how & FLUSH_SYNC;
 	int ret, nscan;
 
+	how &= ~FLUSH_SYNC;
 	nfs_init_cinfo_from_inode(&cinfo, inode);
 	nfs_commit_begin(cinfo.mds);
 	for (;;) {
-- 
GitLab


From c4eb6849909a8b444d79efceb52d4ae454e9cdc5 Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Tue, 9 Mar 2021 00:00:20 -0800
Subject: [PATCH 1399/4878] fs: orangefs: fix error return code of
 orangefs_revalidate_lookup()

[ Upstream commit 4c2b46c824a78fc8190d8eafaaea5a9078fe7479 ]

When op_alloc() returns NULL to new_op, no error return code of
orangefs_revalidate_lookup() is assigned.
To fix this bug, ret is assigned with -ENOMEM in this case.

Fixes: 8bb8aefd5afb ("OrangeFS: Change almost all instances of the string PVFS2 to OrangeFS.")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/orangefs/dcache.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c
index fe484cf93e5cd..8bbe9486e3a62 100644
--- a/fs/orangefs/dcache.c
+++ b/fs/orangefs/dcache.c
@@ -26,8 +26,10 @@ static int orangefs_revalidate_lookup(struct dentry *dentry)
 	gossip_debug(GOSSIP_DCACHE_DEBUG, "%s: attempting lookup.\n", __func__);
 
 	new_op = op_alloc(ORANGEFS_VFS_OP_LOOKUP);
-	if (!new_op)
+	if (!new_op) {
+		ret = -ENOMEM;
 		goto out_put_parent;
+	}
 
 	new_op->upcall.req.lookup.sym_follow = ORANGEFS_LOOKUP_LINK_NO_FOLLOW;
 	new_op->upcall.req.lookup.parent_refn = parent->refn;
-- 
GitLab


From d2ff7a8b079d4b996c28611d48fc4b0746bee77d Mon Sep 17 00:00:00 2001
From: Evgeny Novikov <novikov@ispras.ru>
Date: Fri, 9 Jul 2021 17:45:29 +0300
Subject: [PATCH 1400/4878] mtd: spi-nor: hisi-sfc: Remove excessive
 clk_disable_unprepare()

[ Upstream commit 78e4d342187625585932bb437ec26e1060f7fc6f ]

hisi_spi_nor_probe() invokes clk_disable_unprepare() on all paths after
successful call of clk_prepare_enable(). Besides, the clock is enabled by
hispi_spi_nor_prep() and disabled by hispi_spi_nor_unprep(). So at remove
time it is not possible to have the clock enabled. The patch removes
excessive clk_disable_unprepare() from hisi_spi_nor_remove().

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: e523f11141bd ("mtd: spi-nor: add hisilicon spi-nor flash controller driver")
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/20210709144529.31379-1-novikov@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/spi-nor/controllers/hisi-sfc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/controllers/hisi-sfc.c b/drivers/mtd/spi-nor/controllers/hisi-sfc.c
index 440fc5ae7d34c..fd2c19a047485 100644
--- a/drivers/mtd/spi-nor/controllers/hisi-sfc.c
+++ b/drivers/mtd/spi-nor/controllers/hisi-sfc.c
@@ -477,7 +477,6 @@ static int hisi_spi_nor_remove(struct platform_device *pdev)
 
 	hisi_spi_nor_unregister_all(host);
 	mutex_destroy(&host->lock);
-	clk_disable_unprepare(host->clk);
 	return 0;
 }
 
-- 
GitLab


From 0b73c025bfcf462b467ec176ddbcbbb47efdef8a Mon Sep 17 00:00:00 2001
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Sat, 18 Sep 2021 09:22:59 +0900
Subject: [PATCH 1401/4878] PCI: uniphier: Serialize INTx masking/unmasking and
 fix the bit operation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 4caab28a6215da5f3c1b505ff08810bc6acfe365 ]

The condition register PCI_RCV_INTX is used in irq_mask() and irq_unmask()
callbacks. Accesses to register can occur at the same time without a lock.
Add a lock into each callback to prevent the issue.

And INTX mask and unmask fields in PCL_RCV_INTX register should only be
set/reset for each bit. Clearing by PCL_RCV_INTX_ALL_MASK should be
removed.

INTX status fields in PCL_RCV_INTX register only indicates each INTX
interrupt status, so the handler can't clear by writing 1 to the field.
The status is expected to be cleared by the interrupt origin.
The ack function has no meaning, so should remove it.

Suggested-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/1631924579-24567-1-git-send-email-hayashi.kunihiko@socionext.com
Fixes: 7e6d5cd88a6f ("PCI: uniphier: Add UniPhier PCIe host controller support")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Pali Rohár <pali@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/dwc/pcie-uniphier.c | 26 +++++++++-------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
index 48176265c867e..527ec8aeb602f 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier.c
@@ -171,30 +171,21 @@ static void uniphier_pcie_irq_enable(struct uniphier_pcie_priv *priv)
 	writel(PCL_RCV_INTX_ALL_ENABLE, priv->base + PCL_RCV_INTX);
 }
 
-static void uniphier_pcie_irq_ack(struct irq_data *d)
-{
-	struct pcie_port *pp = irq_data_get_irq_chip_data(d);
-	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
-	struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci);
-	u32 val;
-
-	val = readl(priv->base + PCL_RCV_INTX);
-	val &= ~PCL_RCV_INTX_ALL_STATUS;
-	val |= BIT(irqd_to_hwirq(d) + PCL_RCV_INTX_STATUS_SHIFT);
-	writel(val, priv->base + PCL_RCV_INTX);
-}
-
 static void uniphier_pcie_irq_mask(struct irq_data *d)
 {
 	struct pcie_port *pp = irq_data_get_irq_chip_data(d);
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci);
+	unsigned long flags;
 	u32 val;
 
+	raw_spin_lock_irqsave(&pp->lock, flags);
+
 	val = readl(priv->base + PCL_RCV_INTX);
-	val &= ~PCL_RCV_INTX_ALL_MASK;
 	val |= BIT(irqd_to_hwirq(d) + PCL_RCV_INTX_MASK_SHIFT);
 	writel(val, priv->base + PCL_RCV_INTX);
+
+	raw_spin_unlock_irqrestore(&pp->lock, flags);
 }
 
 static void uniphier_pcie_irq_unmask(struct irq_data *d)
@@ -202,17 +193,20 @@ static void uniphier_pcie_irq_unmask(struct irq_data *d)
 	struct pcie_port *pp = irq_data_get_irq_chip_data(d);
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct uniphier_pcie_priv *priv = to_uniphier_pcie(pci);
+	unsigned long flags;
 	u32 val;
 
+	raw_spin_lock_irqsave(&pp->lock, flags);
+
 	val = readl(priv->base + PCL_RCV_INTX);
-	val &= ~PCL_RCV_INTX_ALL_MASK;
 	val &= ~BIT(irqd_to_hwirq(d) + PCL_RCV_INTX_MASK_SHIFT);
 	writel(val, priv->base + PCL_RCV_INTX);
+
+	raw_spin_unlock_irqrestore(&pp->lock, flags);
 }
 
 static struct irq_chip uniphier_pcie_irq_chip = {
 	.name = "PCI",
-	.irq_ack = uniphier_pcie_irq_ack,
 	.irq_mask = uniphier_pcie_irq_mask,
 	.irq_unmask = uniphier_pcie_irq_unmask,
 };
-- 
GitLab


From 36104e1f71ddb0fb39c49a7bbc375894085acb26 Mon Sep 17 00:00:00 2001
From: Zev Weiss <zev@bewilderbeest.net>
Date: Thu, 14 Oct 2021 13:39:52 -0700
Subject: [PATCH 1402/4878] mtd: core: don't remove debugfs directory if device
 is in use

[ Upstream commit c13de2386c78e890d4ae6f01a85eefd0b293fb08 ]

Previously, if del_mtd_device() failed with -EBUSY due to a non-zero
usecount, a subsequent call to attempt the deletion again would try to
remove a debugfs directory that had already been removed and panic.
With this change the second call can instead proceed safely.

Fixes: e8e3edb95ce6 ("mtd: create per-device and module-scope debugfs entries")
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211014203953.5424-1-zev@bewilderbeest.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/mtdcore.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 1c8c407286783..a5197a4819025 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -721,8 +721,6 @@ int del_mtd_device(struct mtd_info *mtd)
 
 	mutex_lock(&mtd_table_mutex);
 
-	debugfs_remove_recursive(mtd->dbg.dfs_dir);
-
 	if (idr_find(&mtd_idr, mtd->index) != mtd) {
 		ret = -ENODEV;
 		goto out_error;
@@ -738,6 +736,8 @@ int del_mtd_device(struct mtd_info *mtd)
 		       mtd->index, mtd->name, mtd->usecount);
 		ret = -EBUSY;
 	} else {
+		debugfs_remove_recursive(mtd->dbg.dfs_dir);
+
 		/* Try to remove the NVMEM provider */
 		if (mtd->nvmem)
 			nvmem_unregister(mtd->nvmem);
-- 
GitLab


From 5061e102346e30bb71342c0549042a891eefef17 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 4 Sep 2021 13:37:32 +0200
Subject: [PATCH 1403/4878] remoteproc: Fix a memory leak in an error handling
 path in 'rproc_handle_vdev()'

[ Upstream commit 0374a4ea7269645c46c3eb288526ea072fa19e79 ]

If 'copy_dma_range_map() fails, the memory allocated for 'rvdev' will leak.
Move the 'copy_dma_range_map()' call after the device registration so
that 'rproc_rvdev_release()' can be called to free some resources.

Also, branch to the error handling path if 'copy_dma_range_map()' instead
of a direct return to avoid some other leaks.

Fixes: e0d072782c73 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jim Quinlan <james.quinlan@broadcom.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/e6d0dad6620da4fdf847faa903f79b735d35f262.1630755377.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/remoteproc_core.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 47924d5ed4f56..369a97f3eca99 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -550,9 +550,6 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,
 	/* Initialise vdev subdevice */
 	snprintf(name, sizeof(name), "vdev%dbuffer", rvdev->index);
 	rvdev->dev.parent = &rproc->dev;
-	ret = copy_dma_range_map(&rvdev->dev, rproc->dev.parent);
-	if (ret)
-		return ret;
 	rvdev->dev.release = rproc_rvdev_release;
 	dev_set_name(&rvdev->dev, "%s#%s", dev_name(rvdev->dev.parent), name);
 	dev_set_drvdata(&rvdev->dev, rvdev);
@@ -562,6 +559,11 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,
 		put_device(&rvdev->dev);
 		return ret;
 	}
+
+	ret = copy_dma_range_map(&rvdev->dev, rproc->dev.parent);
+	if (ret)
+		goto free_rvdev;
+
 	/* Make device dma capable by inheriting from parent's capabilities */
 	set_dma_ops(&rvdev->dev, get_dma_ops(rproc->dev.parent));
 
-- 
GitLab


From 038dfd67d375b10c9dc6d67dd4db3f1e1e45ce5c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 12 Oct 2021 13:10:28 +0300
Subject: [PATCH 1404/4878] rtc: rv3032: fix error handling in
 rv3032_clkout_set_rate()

[ Upstream commit c3336b8ac6091df60a5c1049a8c685d0b947cc61 ]

Do not call rv3032_exit_eerd() if the enter function fails but don't
forget to call the exit when the enter succeeds.

Fixes: 2eeaa532acca ("rtc: rv3032: Add a driver for Microcrystal RV-3032")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211012101028.GT2083@kadam
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/rtc/rtc-rv3032.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c
index 3e67f71f42614..9e6166864bd73 100644
--- a/drivers/rtc/rtc-rv3032.c
+++ b/drivers/rtc/rtc-rv3032.c
@@ -617,11 +617,11 @@ static int rv3032_clkout_set_rate(struct clk_hw *hw, unsigned long rate,
 
 	ret = rv3032_enter_eerd(rv3032, &eerd);
 	if (ret)
-		goto exit_eerd;
+		return ret;
 
 	ret = regmap_write(rv3032->regmap, RV3032_CLKOUT1, hfd & 0xff);
 	if (ret)
-		return ret;
+		goto exit_eerd;
 
 	ret = regmap_write(rv3032->regmap, RV3032_CLKOUT2, RV3032_CLKOUT2_OS |
 			    FIELD_PREP(RV3032_CLKOUT2_HFD_MSK, hfd >> 8));
-- 
GitLab


From 91e43a8500f40108c82e9c82d84571b638529f15 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 7 Oct 2021 14:12:28 +0300
Subject: [PATCH 1405/4878] dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro

[ Upstream commit 320c88a3104dc955f928a1eecebd551ff89530c0 ]

AT_XDMAC_CC_PERID() should be used to setup bits 24..30 of XDMAC_CC
register. Using it without parenthesis around 0x7f & (i) will lead to
setting all the time zero for bits 24..30 of XDMAC_CC as the << operator
has higher precedence over bitwise &. Thus, add paranthesis around
0x7f & (i).

Fixes: 15a03850ab8f ("dmaengine: at_xdmac: fix macro typo")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211007111230.2331837-3-claudiu.beznea@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/at_xdmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 3b53115db2686..627ad74c879fd 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -145,7 +145,7 @@
 #define		AT_XDMAC_CC_WRIP	(0x1 << 23)	/* Write in Progress (read only) */
 #define			AT_XDMAC_CC_WRIP_DONE		(0x0 << 23)
 #define			AT_XDMAC_CC_WRIP_IN_PROGRESS	(0x1 << 23)
-#define		AT_XDMAC_CC_PERID(i)	(0x7f & (i) << 24)	/* Channel Peripheral Identifier */
+#define		AT_XDMAC_CC_PERID(i)	((0x7f & (i)) << 24)	/* Channel Peripheral Identifier */
 #define AT_XDMAC_CDS_MSP	0x2C	/* Channel Data Stride Memory Set Pattern */
 #define AT_XDMAC_CSUS		0x30	/* Channel Source Microblock Stride */
 #define AT_XDMAC_CDUS		0x34	/* Channel Destination Microblock Stride */
-- 
GitLab


From 10f21087173651d41ea308b4a0c3a13188418aaa Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Mon, 4 Oct 2021 15:37:42 -0400
Subject: [PATCH 1406/4878] NFS: Fix up commit deadlocks

[ Upstream commit 133a48abf6ecc535d7eddc6da1c3e4c972445882 ]

If O_DIRECT bumps the commit_info rpcs_out field, then that could lead
to fsync() hangs. The fix is to ensure that O_DIRECT calls
nfs_commit_end().

Fixes: 723c921e7dfc ("sched/wait, fs/nfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/direct.c        | 2 +-
 fs/nfs/pnfs_nfs.c      | 2 --
 fs/nfs/write.c         | 9 ++++++---
 include/linux/nfs_fs.h | 1 +
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 2e894fec036b0..3c0335c15a730 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -620,7 +620,7 @@ static void nfs_direct_commit_complete(struct nfs_commit_data *data)
 		nfs_unlock_and_release_request(req);
 	}
 
-	if (atomic_dec_and_test(&cinfo.mds->rpcs_out))
+	if (nfs_commit_end(cinfo.mds))
 		nfs_direct_write_complete(dreq);
 }
 
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index 37b52b53a7e53..7b9d701bef016 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -468,7 +468,6 @@ pnfs_bucket_alloc_ds_commits(struct list_head *list,
 				goto out_error;
 			data->ds_commit_index = i;
 			list_add_tail(&data->list, list);
-			atomic_inc(&cinfo->mds->rpcs_out);
 			nreq++;
 		}
 		mutex_unlock(&NFS_I(cinfo->inode)->commit_mutex);
@@ -520,7 +519,6 @@ pnfs_generic_commit_pagelist(struct inode *inode, struct list_head *mds_pages,
 		data->ds_commit_index = -1;
 		list_splice_init(mds_pages, &data->pages);
 		list_add_tail(&data->list, &list);
-		atomic_inc(&cinfo->mds->rpcs_out);
 		nreq++;
 	}
 
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index dc7201c83bc29..bde4c362841f0 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1649,10 +1649,13 @@ static void nfs_commit_begin(struct nfs_mds_commit_info *cinfo)
 	atomic_inc(&cinfo->rpcs_out);
 }
 
-static void nfs_commit_end(struct nfs_mds_commit_info *cinfo)
+bool nfs_commit_end(struct nfs_mds_commit_info *cinfo)
 {
-	if (atomic_dec_and_test(&cinfo->rpcs_out))
+	if (atomic_dec_and_test(&cinfo->rpcs_out)) {
 		wake_up_var(&cinfo->rpcs_out);
+		return true;
+	}
+	return false;
 }
 
 void nfs_commitdata_release(struct nfs_commit_data *data)
@@ -1752,6 +1755,7 @@ void nfs_init_commit(struct nfs_commit_data *data,
 	data->res.fattr   = &data->fattr;
 	data->res.verf    = &data->verf;
 	nfs_fattr_init(&data->fattr);
+	nfs_commit_begin(cinfo->mds);
 }
 EXPORT_SYMBOL_GPL(nfs_init_commit);
 
@@ -1797,7 +1801,6 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how,
 
 	/* Set up the argument struct */
 	nfs_init_commit(data, head, NULL, cinfo);
-	atomic_inc(&cinfo->mds->rpcs_out);
 	return nfs_initiate_commit(NFS_CLIENT(inode), data, NFS_PROTO(inode),
 				   data->mds_ops, how, RPC_TASK_CRED_NOREF);
 }
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 91a6525a98cb7..aff5cd382fef5 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -553,6 +553,7 @@ extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
 extern int  nfs_commit_inode(struct inode *, int);
 extern struct nfs_commit_data *nfs_commitdata_alloc(bool never_fail);
 extern void nfs_commit_free(struct nfs_commit_data *data);
+bool nfs_commit_end(struct nfs_mds_commit_info *cinfo);
 
 static inline int
 nfs_have_writebacks(struct inode *inode)
-- 
GitLab


From 90e7415221e1aa91e0ed676879e3f31125058d11 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 5 Oct 2021 14:05:02 -0400
Subject: [PATCH 1407/4878] NFS: Fix an Oops in pnfs_mark_request_commit()

[ Upstream commit f0caea8882a7412a2ad4d8274f0280cdf849c9e2 ]

Olga reports seeing the following Oops when doing O_DIRECT writes to a
pNFS flexfiles server:

Oops: 0000 [#1] SMP PTI
CPU: 1 PID: 234186 Comm: kworker/u8:1 Not tainted 5.15.0-rc4+ #4
Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.13.0-2.module+el8.3.0+7353+9de0a3cc 04/01/2014
Workqueue: nfsiod rpc_async_release [sunrpc]
RIP: 0010:nfs_mark_request_commit+0x12/0x30 [nfs]
Code: ff ff be 03 00 00 00 e8 ac 34 83 eb e9 29 ff ff
ff e8 22 bc d7 eb 66 90 0f 1f 44 00 00 48 85 f6 74 16 48 8b 42 10 48
8b 40 18 <48> 8b 40 18 48 85 c0 74 05 e9 70 fc 15 ec 48 89 d6 e9 68 ed
ff ff
RSP: 0018:ffffa82f0159fe00 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8f3393141880 RCX: 0000000000000000
RDX: ffffa82f0159fe08 RSI: ffff8f3381252500 RDI: ffff8f3393141880
RBP: ffff8f33ac317c00 R08: 0000000000000000 R09: ffff8f3487724cb0
R10: 0000000000000008 R11: 0000000000000001 R12: 0000000000000001
R13: ffff8f3485bccee0 R14: ffff8f33ac317c10 R15: ffff8f33ac317cd8
FS:  0000000000000000(0000) GS:ffff8f34fbc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 0000000122120006 CR4: 0000000000770ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 nfs_direct_write_completion+0x13b/0x250 [nfs]
 rpc_free_task+0x39/0x60 [sunrpc]
 rpc_async_release+0x29/0x40 [sunrpc]
 process_one_work+0x1ce/0x370
 worker_thread+0x30/0x380
 ? process_one_work+0x370/0x370
 kthread+0x11a/0x140
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x22/0x30

Reported-by: Olga Kornievskaia <aglo@umich.edu>
Fixes: 9c455a8c1e14 ("NFS/pNFS: Clean up pNFS commit operations")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/pnfs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 132a345e93731..0212fe32e63aa 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -515,7 +515,7 @@ pnfs_mark_request_commit(struct nfs_page *req, struct pnfs_layout_segment *lseg,
 {
 	struct pnfs_ds_commit_info *fl_cinfo = cinfo->ds;
 
-	if (!lseg || !fl_cinfo->ops->mark_request_commit)
+	if (!lseg || !fl_cinfo->ops || !fl_cinfo->ops->mark_request_commit)
 		return false;
 	fl_cinfo->ops->mark_request_commit(req, lseg, cinfo, ds_commit_idx);
 	return true;
-- 
GitLab


From 0e1709b2a07ad18742808a7088468b0b3477aa96 Mon Sep 17 00:00:00 2001
From: Alexey Gladkov <legion@kernel.org>
Date: Thu, 14 Oct 2021 18:02:30 +0200
Subject: [PATCH 1408/4878] Fix user namespace leak

[ Upstream commit d5f458a979650e5ed37212f6134e4ee2b28cb6ed ]

Fixes: 61ca2c4afd9d ("NFS: Only reference user namespace from nfs4idmap struct instead of cred")
Signed-off-by: Alexey Gladkov <legion@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4idmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index 8d8aba305ecca..f331866dd4182 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -487,7 +487,7 @@ nfs_idmap_new(struct nfs_client *clp)
 err_destroy_pipe:
 	rpc_destroy_pipe_data(idmap->idmap_pipe);
 err:
-	get_user_ns(idmap->user_ns);
+	put_user_ns(idmap->user_ns);
 	kfree(idmap);
 	return error;
 }
-- 
GitLab


From a1d6a60ee00ceed18001fec3e6cbb9bc62b8b98d Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 19 Oct 2021 16:45:02 +0200
Subject: [PATCH 1409/4878] auxdisplay: img-ascii-lcd: Fix lock-up when
 displaying empty string

[ Upstream commit afcb5a811ff3ab3969f09666535eb6018a160358 ]

While writing an empty string to a device attribute is a no-op, and thus
does not need explicit safeguards, the user can still write a single
newline to an attribute file:

    echo > .../message

If that happens, img_ascii_lcd_display() trims the newline, yielding an
empty string, and causing an infinite loop in img_ascii_lcd_scroll().

Fix this by adding a check for empty strings.  Clear the display in case
one is encountered.

Fixes: 0cad855fbd083ee5 ("auxdisplay: img-ascii-lcd: driver for simple ASCII LCD displays")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/auxdisplay/img-ascii-lcd.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/auxdisplay/img-ascii-lcd.c b/drivers/auxdisplay/img-ascii-lcd.c
index 1cce409ce5cac..e33ce0151cdfd 100644
--- a/drivers/auxdisplay/img-ascii-lcd.c
+++ b/drivers/auxdisplay/img-ascii-lcd.c
@@ -280,6 +280,16 @@ static int img_ascii_lcd_display(struct img_ascii_lcd_ctx *ctx,
 	if (msg[count - 1] == '\n')
 		count--;
 
+	if (!count) {
+		/* clear the LCD */
+		devm_kfree(&ctx->pdev->dev, ctx->message);
+		ctx->message = NULL;
+		ctx->message_len = 0;
+		memset(ctx->curr, ' ', ctx->cfg->num_chars);
+		ctx->cfg->update(ctx);
+		return 0;
+	}
+
 	new_msg = devm_kmalloc(&ctx->pdev->dev, count + 1, GFP_KERNEL);
 	if (!new_msg)
 		return -ENOMEM;
-- 
GitLab


From 178522aa755f009e050b002c6ee699c3c5bf4d0c Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 19 Oct 2021 16:45:08 +0200
Subject: [PATCH 1410/4878] auxdisplay: ht16k33: Connect backlight to fbdev

[ Upstream commit 80f9eb70fd9276938f0a131f76d438021bfd8b34 ]

Currently /sys/class/graphics/fb0/bl_curve is not accessible (-ENODEV),
as the driver does not connect the backlight to the frame buffer device.
Fix this moving backlight initialization up, and filling in
fb_info.bl_dev.

Fixes: 8992da44c6805d53 ("auxdisplay: ht16k33: Driver for LED controller")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/auxdisplay/ht16k33.c | 56 ++++++++++++++++++------------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index d8602843e8a53..b8c25a17186b5 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -418,6 +418,33 @@ static int ht16k33_probe(struct i2c_client *client,
 	if (err)
 		return err;
 
+	/* Backlight */
+	memset(&bl_props, 0, sizeof(struct backlight_properties));
+	bl_props.type = BACKLIGHT_RAW;
+	bl_props.max_brightness = MAX_BRIGHTNESS;
+
+	bl = devm_backlight_device_register(&client->dev, DRIVER_NAME"-bl",
+					    &client->dev, priv,
+					    &ht16k33_bl_ops, &bl_props);
+	if (IS_ERR(bl)) {
+		dev_err(&client->dev, "failed to register backlight\n");
+		return PTR_ERR(bl);
+	}
+
+	err = of_property_read_u32(node, "default-brightness-level",
+				   &dft_brightness);
+	if (err) {
+		dft_brightness = MAX_BRIGHTNESS;
+	} else if (dft_brightness > MAX_BRIGHTNESS) {
+		dev_warn(&client->dev,
+			 "invalid default brightness level: %u, using %u\n",
+			 dft_brightness, MAX_BRIGHTNESS);
+		dft_brightness = MAX_BRIGHTNESS;
+	}
+
+	bl->props.brightness = dft_brightness;
+	ht16k33_bl_update_status(bl);
+
 	/* Framebuffer (2 bytes per column) */
 	BUILD_BUG_ON(PAGE_SIZE < HT16K33_FB_SIZE);
 	fbdev->buffer = (unsigned char *) get_zeroed_page(GFP_KERNEL);
@@ -450,6 +477,7 @@ static int ht16k33_probe(struct i2c_client *client,
 	fbdev->info->screen_size = HT16K33_FB_SIZE;
 	fbdev->info->fix = ht16k33_fb_fix;
 	fbdev->info->var = ht16k33_fb_var;
+	fbdev->info->bl_dev = bl;
 	fbdev->info->pseudo_palette = NULL;
 	fbdev->info->flags = FBINFO_FLAG_DEFAULT;
 	fbdev->info->par = priv;
@@ -462,34 +490,6 @@ static int ht16k33_probe(struct i2c_client *client,
 	if (err)
 		goto err_fbdev_unregister;
 
-	/* Backlight */
-	memset(&bl_props, 0, sizeof(struct backlight_properties));
-	bl_props.type = BACKLIGHT_RAW;
-	bl_props.max_brightness = MAX_BRIGHTNESS;
-
-	bl = devm_backlight_device_register(&client->dev, DRIVER_NAME"-bl",
-					    &client->dev, priv,
-					    &ht16k33_bl_ops, &bl_props);
-	if (IS_ERR(bl)) {
-		dev_err(&client->dev, "failed to register backlight\n");
-		err = PTR_ERR(bl);
-		goto err_fbdev_unregister;
-	}
-
-	err = of_property_read_u32(node, "default-brightness-level",
-				   &dft_brightness);
-	if (err) {
-		dft_brightness = MAX_BRIGHTNESS;
-	} else if (dft_brightness > MAX_BRIGHTNESS) {
-		dev_warn(&client->dev,
-			 "invalid default brightness level: %u, using %u\n",
-			 dft_brightness, MAX_BRIGHTNESS);
-		dft_brightness = MAX_BRIGHTNESS;
-	}
-
-	bl->props.brightness = dft_brightness;
-	ht16k33_bl_update_status(bl);
-
 	ht16k33_fb_queue(priv);
 	return 0;
 
-- 
GitLab


From 6caab6c96b67b0751b3ad7f4d14d6e298a3b3790 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 19 Oct 2021 16:45:09 +0200
Subject: [PATCH 1411/4878] auxdisplay: ht16k33: Fix frame buffer device
 blanking

[ Upstream commit 840fe258332544aa7321921e1723d37b772af7a9 ]

As the ht16k33 frame buffer sub-driver does not register an
fb_ops.fb_blank() handler, blanking does not work:

    $ echo 1 > /sys/class/graphics/fb0/blank
    sh: write error: Invalid argument

Fix this by providing a handler that always returns zero, to make sure
blank events will be sent to the actual device handling the backlight.

Reported-by: Robin van der Gracht <robin@protonic.nl>
Suggested-by: Robin van der Gracht <robin@protonic.nl>
Fixes: 8992da44c6805d53 ("auxdisplay: ht16k33: Driver for LED controller")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/auxdisplay/ht16k33.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index b8c25a17186b5..7e3858c4e030f 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -219,6 +219,15 @@ static const struct backlight_ops ht16k33_bl_ops = {
 	.check_fb	= ht16k33_bl_check_fb,
 };
 
+/*
+ * Blank events will be passed to the actual device handling the backlight when
+ * we return zero here.
+ */
+static int ht16k33_blank(int blank, struct fb_info *info)
+{
+	return 0;
+}
+
 static int ht16k33_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct ht16k33_priv *priv = info->par;
@@ -231,6 +240,7 @@ static const struct fb_ops ht16k33_fb_ops = {
 	.owner = THIS_MODULE,
 	.fb_read = fb_sys_read,
 	.fb_write = fb_sys_write,
+	.fb_blank = ht16k33_blank,
 	.fb_fillrect = sys_fillrect,
 	.fb_copyarea = sys_copyarea,
 	.fb_imageblit = sys_imageblit,
-- 
GitLab


From 41968262bb24772280a0b6fbc808cf740ae961d4 Mon Sep 17 00:00:00 2001
From: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Date: Fri, 23 Apr 2021 12:01:51 +0300
Subject: [PATCH 1412/4878] soc: fsl: dpaa2-console: free buffer before
 returning from dpaa2_console_read

[ Upstream commit 8120bd469f5525da229953c1197f2b826c0109f4 ]

Free the kbuf buffer before returning from the dpaa2_console_read()
function. The variable no longer goes out of scope, leaking the storage
it points to.

Fixes: c93349d8c170 ("soc: fsl: add DPAA2 console support")
Signed-off-by: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/fsl/dpaa2-console.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/fsl/dpaa2-console.c b/drivers/soc/fsl/dpaa2-console.c
index 27243f706f376..53917410f2bdb 100644
--- a/drivers/soc/fsl/dpaa2-console.c
+++ b/drivers/soc/fsl/dpaa2-console.c
@@ -231,6 +231,7 @@ static ssize_t dpaa2_console_read(struct file *fp, char __user *buf,
 	cd->cur_ptr += bytes;
 	written += bytes;
 
+	kfree(kbuf);
 	return written;
 
 err_free_buf:
-- 
GitLab


From bba31f3b1f43625496b42eb7bae534262ba3391e Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 20 Oct 2021 18:08:10 +0200
Subject: [PATCH 1413/4878] netfilter: nfnetlink_queue: fix OOB when mac header
 was cleared

[ Upstream commit 5648b5e1169ff1d6d6a46c35c0b5fbebd2a5cbb2 ]

On 64bit platforms the MAC header is set to 0xffff on allocation and
also when a helper like skb_unset_mac_header() is called.

dev_parse_header may call skb_mac_header() which assumes valid mac offset:

 BUG: KASAN: use-after-free in eth_header_parse+0x75/0x90
 Read of size 6 at addr ffff8881075a5c05 by task nf-queue/1364
 Call Trace:
  memcpy+0x20/0x60
  eth_header_parse+0x75/0x90
  __nfqnl_enqueue_packet+0x1a61/0x3380
  __nf_queue+0x597/0x1300
  nf_queue+0xf/0x40
  nf_hook_slow+0xed/0x190
  nf_hook+0x184/0x440
  ip_output+0x1c0/0x2a0
  nf_reinject+0x26f/0x700
  nfqnl_recv_verdict+0xa16/0x18b0
  nfnetlink_rcv_msg+0x506/0xe70

The existing code only works if the skb has a mac header.

Fixes: 2c38de4c1f8da7 ("netfilter: fix looped (broad|multi)cast's MAC handling")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nfnetlink_queue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index d1d8bca03b4f0..98994fe677fe9 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -562,7 +562,7 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
 		goto nla_put_failure;
 
 	if (indev && entskb->dev &&
-	    entskb->mac_header != entskb->network_header) {
+	    skb_mac_header_was_set(entskb)) {
 		struct nfqnl_msg_packet_hw phw;
 		int len;
 
-- 
GitLab


From b04c17acf42ad96ade2c34d7892a6b0bd034b37f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 23 Oct 2021 15:41:01 +0200
Subject: [PATCH 1414/4878] dmaengine: dmaengine_desc_callback_valid(): Check
 for `callback_result`

[ Upstream commit e7e1e880b114ca640a2f280b0d5d38aed98f98c6 ]

Before the `callback_result` callback was introduced drivers coded their
invocation to the callback in a similar way to:

	if (cb->callback) {
		spin_unlock(&dma->lock);
		cb->callback(cb->callback_param);
		spin_lock(&dma->lock);
	}

With the introduction of `callback_result` two helpers where introduced to
transparently handle both types of callbacks. And drivers where updated to
look like this:

	if (dmaengine_desc_callback_valid(cb)) {
		spin_unlock(&dma->lock);
		dmaengine_desc_callback_invoke(cb, ...);
		spin_lock(&dma->lock);
	}

dmaengine_desc_callback_invoke() correctly handles both `callback_result`
and `callback`. But we forgot to update the dmaengine_desc_callback_valid()
function to check for `callback_result`. As a result DMA descriptors that
use the `callback_result` rather than `callback` don't have their callback
invoked by drivers that follow the pattern above.

Fix this by checking for both `callback` and `callback_result` in
dmaengine_desc_callback_valid().

Fixes: f067025bc676 ("dmaengine: add support to provide error result from a DMA transation")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20211023134101.28042-1-lars@metafoo.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/dmaengine.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/dmaengine.h b/drivers/dma/dmaengine.h
index 1bfbd64b13717..53f16d3f00294 100644
--- a/drivers/dma/dmaengine.h
+++ b/drivers/dma/dmaengine.h
@@ -176,7 +176,7 @@ dmaengine_desc_get_callback_invoke(struct dma_async_tx_descriptor *tx,
 static inline bool
 dmaengine_desc_callback_valid(struct dmaengine_desc_callback *cb)
 {
-	return (cb->callback) ? true : false;
+	return cb->callback || cb->callback_result;
 }
 
 struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
-- 
GitLab


From a4cbf00e5ab8022f45ffc93c10feced1b2334892 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Wed, 20 Oct 2021 12:43:52 -0500
Subject: [PATCH 1415/4878] signal/sh: Use force_sig(SIGKILL) instead of
 do_group_exit(SIGKILL)

[ Upstream commit ce0ee4e6ac99606f3945f4d47775544edc3f7985 ]

Today the sh code allocates memory the first time a process uses
the fpu.  If that memory allocation fails, kill the affected task
with force_sig(SIGKILL) rather than do_group_exit(SIGKILL).

Calling do_group_exit from an exception handler can potentially lead
to dead locks as do_group_exit is not designed to be called from
interrupt context.  Instead use force_sig(SIGKILL) to kill the
userspace process.  Sending signals in general and force_sig in
particular has been tested from interrupt context so there should be
no problems.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Fixes: 0ea820cf9bf5 ("sh: Move over to dynamically allocated FPU context.")
Link: https://lkml.kernel.org/r/20211020174406.17889-6-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sh/kernel/cpu/fpu.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index ae354a2931e7e..fd6db0ab19288 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -62,18 +62,20 @@ void fpu_state_restore(struct pt_regs *regs)
 	}
 
 	if (!tsk_used_math(tsk)) {
-		local_irq_enable();
+		int ret;
 		/*
 		 * does a slab alloc which can sleep
 		 */
-		if (init_fpu(tsk)) {
+		local_irq_enable();
+		ret = init_fpu(tsk);
+		local_irq_disable();
+		if (ret) {
 			/*
 			 * ran out of memory!
 			 */
-			do_group_exit(SIGKILL);
+			force_sig(SIGKILL);
 			return;
 		}
-		local_irq_disable();
 	}
 
 	grab_fpu(regs);
-- 
GitLab


From aaa64ee14ac97df8d35aa901c258937973c126ff Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sat, 2 Oct 2021 17:02:23 -0700
Subject: [PATCH 1416/4878] m68k: set a default value for MEMORY_RESERVE

[ Upstream commit 1aaa557b2db95c9506ed0981bc34505c32d6b62b ]

'make randconfig' can produce a .config file with
"CONFIG_MEMORY_RESERVE=" (no value) since it has no default.
When a subsequent 'make all' is done, kconfig restarts the config
and prompts for a value for MEMORY_RESERVE. This breaks
scripting/automation where there is no interactive user input.

Add a default value for MEMORY_RESERVE. (Any integer value will
work here for kconfig.)

Fixes a kconfig warning:

.config:214:warning: symbol value '' invalid for MEMORY_RESERVE
* Restart config...
Memory reservation (MiB) (MEMORY_RESERVE) [] (NEW)

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") # from beginning of git history
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/m68k/Kconfig.machine | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index e161a4e1493b4..51a878803fb6d 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -191,6 +191,7 @@ config INIT_LCD
 config MEMORY_RESERVE
 	int "Memory reservation (MiB)"
 	depends on (UCSIMM || UCDIMM)
+	default 0
 	help
 	  Reserve certain memory regions on 68x328 based boards.
 
-- 
GitLab


From ef9f7ab9ba207b909bffdeda6643cd6c14e8775b Mon Sep 17 00:00:00 2001
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
Date: Mon, 9 Aug 2021 18:20:31 +0200
Subject: [PATCH 1417/4878] watchdog: f71808e_wdt: fix inaccurate report in
 WDIOC_GETTIMEOUT

[ Upstream commit 164483c735190775f29d0dcbac0363adc51a068d ]

The fintek watchdog timer can configure timeouts of second granularity
only up to 255 seconds. Beyond that, the timeout needs to be configured
with minute granularity. WDIOC_GETTIMEOUT should report the actual
timeout configured, not just echo back the timeout configured by the
user. Do so.

Fixes: 96cb4eb019ce ("watchdog: f71808e_wdt: new watchdog driver for Fintek F71808E and F71882FG")
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.kernel.org/r/5e17960fe8cc0e3cb2ba53de4730b75d9a0f33d5.1628525954.git-series.a.fatoum@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/f71808e_wdt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index f60beec1bbaea..f7d82d2619133 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -228,15 +228,17 @@ static int watchdog_set_timeout(int timeout)
 
 	mutex_lock(&watchdog.lock);
 
-	watchdog.timeout = timeout;
 	if (timeout > 0xff) {
 		watchdog.timer_val = DIV_ROUND_UP(timeout, 60);
 		watchdog.minutes_mode = true;
+		timeout = watchdog.timer_val * 60;
 	} else {
 		watchdog.timer_val = timeout;
 		watchdog.minutes_mode = false;
 	}
 
+	watchdog.timeout = timeout;
+
 	mutex_unlock(&watchdog.lock);
 
 	return 0;
-- 
GitLab


From ba5eb0e44346fa672a34e661e6678d2d244383ec Mon Sep 17 00:00:00 2001
From: Jackie Liu <liuyun01@kylinos.cn>
Date: Tue, 7 Sep 2021 10:49:04 +0800
Subject: [PATCH 1418/4878] ar7: fix kernel builds for compiler test
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 28b7ee33a2122569ac065cad578bf23f50cc65c3 ]

TI AR7 Watchdog Timer is only build for 32bit.

Avoid error like:
In file included from drivers/watchdog/ar7_wdt.c:29:
./arch/mips/include/asm/mach-ar7/ar7.h: In function ‘ar7_is_titan’:
./arch/mips/include/asm/mach-ar7/ar7.h:111:24: error: implicit declaration of function ‘KSEG1ADDR’; did you mean ‘CKSEG1ADDR’? [-Werror=implicit-function-declaration]
  111 |  return (readl((void *)KSEG1ADDR(AR7_REGS_GPIO + 0x24)) & 0xffff) ==
      |                        ^~~~~~~~~
      |                        CKSEG1ADDR

Fixes: da2a68b3eb47 ("watchdog: Enable COMPILE_TEST where possible")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210907024904.4127611-1-liu.yun@linux.dev
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index db935d6b10c27..01ce3f41cc219 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1723,7 +1723,7 @@ config SIBYTE_WDOG
 
 config AR7_WDT
 	tristate "TI AR7 Watchdog Timer"
-	depends on AR7 || (MIPS && COMPILE_TEST)
+	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
 	help
 	  Hardware driver for the TI AR7 Watchdog Timer.
 
-- 
GitLab


From bc3f207ed99ab47c9370301a4be69a75a188929e Mon Sep 17 00:00:00 2001
From: Saurav Kashyap <skashyap@marvell.com>
Date: Mon, 9 Aug 2021 21:37:10 -0700
Subject: [PATCH 1419/4878] scsi: qla2xxx: Changes to support FCP2 Target

[ Upstream commit 44c57f205876518b14ab2b4b5d88a181f41260bb ]

Add changes to support FCP2 Target.

Link: https://lore.kernel.org/r/20210810043720.1137-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_dbg.c  |  3 +--
 drivers/scsi/qla2xxx/qla_init.c |  6 ++++++
 drivers/scsi/qla2xxx/qla_os.c   | 10 ++++++++++
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 144a893e7335b..3a20bf8ce5ab9 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -12,8 +12,7 @@
  * ----------------------------------------------------------------------
  * | Module Init and Probe        |       0x0199       |                |
  * | Mailbox commands             |       0x1206       | 0x11a5-0x11ff	|
- * | Device Discovery             |       0x2134       | 0x210e-0x2116  |
- * |				  | 		       | 0x211a         |
+ * | Device Discovery             |       0x2134       | 0x210e-0x2115  |
  * |                              |                    | 0x211c-0x2128  |
  * |                              |                    | 0x212c-0x2134  |
  * | Queue Command and IO tracing |       0x3074       | 0x300b         |
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index b7aac3116f2db..e893b42e51a35 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1710,6 +1710,12 @@ void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
 
 	fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
 	if (fcport) {
+		if (fcport->flags & FCF_FCP2_DEVICE) {
+			ql_dbg(ql_dbg_disc, vha, 0x2115,
+			       "Delaying session delete for FCP2 portid=%06x %8phC ",
+			       fcport->d_id.b24, fcport->port_name);
+			return;
+		}
 		fcport->scan_needed = 1;
 		fcport->rscn_gen++;
 	}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 813abaf1b0872..30ce84468c759 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3955,6 +3955,16 @@ qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha)
 	    "Mark all dev lost\n");
 
 	list_for_each_entry(fcport, &vha->vp_fcports, list) {
+		if (fcport->loop_id != FC_NO_LOOP_ID &&
+		    (fcport->flags & FCF_FCP2_DEVICE) &&
+		    fcport->port_type == FCT_TARGET &&
+		    !qla2x00_reset_active(vha)) {
+			ql_dbg(ql_dbg_disc, vha, 0x211a,
+			       "Delaying session delete for FCP2 flags 0x%x port_type = 0x%x port_id=%06x %phC",
+			       fcport->flags, fcport->port_type,
+			       fcport->d_id.b24, fcport->port_name);
+			continue;
+		}
 		fcport->scan_state = 0;
 		qlt_schedule_sess_for_deletion(fcport);
 	}
-- 
GitLab


From cbe31149e5a708e50eea1e69d6fd4643226e7769 Mon Sep 17 00:00:00 2001
From: Quinn Tran <qutran@marvell.com>
Date: Tue, 26 Oct 2021 04:54:00 -0700
Subject: [PATCH 1420/4878] scsi: qla2xxx: Relogin during fabric disturbance

[ Upstream commit bb2ca6b3f09ac20e8357d257d0557ab5ddf6adcd ]

For RSCN of type "Area, Domain, or Fabric", which indicate a portion or
entire fabric was disturbed, current driver does not set the scan_need flag
to indicate a session was affected by the disturbance. This in turn can
lead to I/O timeout and delay of relogin. Hence initiate relogin in the
event of fabric disturbance.

Link: https://lore.kernel.org/r/20211026115412.27691-2-njavali@marvell.com
Fixes: 1560bafdff9e ("scsi: qla2xxx: Use complete switch scan for RSCN events")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_init.c | 56 +++++++++++++++++++++++++++------
 1 file changed, 46 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index e893b42e51a35..5bbdaefb44efc 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1708,16 +1708,52 @@ void qla2x00_handle_rscn(scsi_qla_host_t *vha, struct event_arg *ea)
 	fc_port_t *fcport;
 	unsigned long flags;
 
-	fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
-	if (fcport) {
-		if (fcport->flags & FCF_FCP2_DEVICE) {
-			ql_dbg(ql_dbg_disc, vha, 0x2115,
-			       "Delaying session delete for FCP2 portid=%06x %8phC ",
-			       fcport->d_id.b24, fcport->port_name);
-			return;
-		}
-		fcport->scan_needed = 1;
-		fcport->rscn_gen++;
+	switch (ea->id.b.rsvd_1) {
+	case RSCN_PORT_ADDR:
+		fcport = qla2x00_find_fcport_by_nportid(vha, &ea->id, 1);
+		if (fcport) {
+			if (fcport->flags & FCF_FCP2_DEVICE) {
+				ql_dbg(ql_dbg_disc, vha, 0x2115,
+				       "Delaying session delete for FCP2 portid=%06x %8phC ",
+					fcport->d_id.b24, fcport->port_name);
+				return;
+			}
+			fcport->scan_needed = 1;
+			fcport->rscn_gen++;
+		}
+		break;
+	case RSCN_AREA_ADDR:
+		list_for_each_entry(fcport, &vha->vp_fcports, list) {
+			if (fcport->flags & FCF_FCP2_DEVICE)
+				continue;
+
+			if ((ea->id.b24 & 0xffff00) == (fcport->d_id.b24 & 0xffff00)) {
+				fcport->scan_needed = 1;
+				fcport->rscn_gen++;
+			}
+		}
+		break;
+	case RSCN_DOM_ADDR:
+		list_for_each_entry(fcport, &vha->vp_fcports, list) {
+			if (fcport->flags & FCF_FCP2_DEVICE)
+				continue;
+
+			if ((ea->id.b24 & 0xff0000) == (fcport->d_id.b24 & 0xff0000)) {
+				fcport->scan_needed = 1;
+				fcport->rscn_gen++;
+			}
+		}
+		break;
+	case RSCN_FAB_ADDR:
+	default:
+		list_for_each_entry(fcport, &vha->vp_fcports, list) {
+			if (fcport->flags & FCF_FCP2_DEVICE)
+				continue;
+
+			fcport->scan_needed = 1;
+			fcport->rscn_gen++;
+		}
+		break;
 	}
 
 	spin_lock_irqsave(&vha->work_lock, flags);
-- 
GitLab


From 09595fd2cef53cc4e87d04d7387906bf54beb92c Mon Sep 17 00:00:00 2001
From: Quinn Tran <qutran@marvell.com>
Date: Tue, 26 Oct 2021 04:54:01 -0700
Subject: [PATCH 1421/4878] scsi: qla2xxx: Fix gnl list corruption

[ Upstream commit c98c5daaa24b583cba1369b7d167f93c6ae7299c ]

Current code does list element deletion and addition in and out of lock
protection. This patch moves deletion behind lock.

list_add double add: new=ffff9130b5eb89f8, prev=ffff9130b5eb89f8,
    next=ffff9130c6a715f0.
 ------------[ cut here ]------------
 kernel BUG at lib/list_debug.c:31!
 invalid opcode: 0000 [#1] SMP PTI
 CPU: 1 PID: 182395 Comm: kworker/1:37 Kdump: loaded Tainted: G W  OE
 --------- -  - 4.18.0-193.el8.x86_64 #1
 Hardware name: HP ProLiant DL160 Gen8, BIOS J03 02/10/2014
 Workqueue: qla2xxx_wq qla2x00_iocb_work_fn [qla2xxx]
 RIP: 0010:__list_add_valid+0x41/0x50
 Code: 85 94 00 00 00 48 39 c7 74 0b 48 39 d7 74 06 b8 01 00 00 00 c3 48 89 f2
 4c 89 c1 48 89 fe 48 c7 c7 60 83 ad 97 e8 4d bd ce ff <0f> 0b 0f 1f 00 66 2e
 0f 1f 84 00 00 00 00 00 48 8b 07 48 8b 57 08
 RSP: 0018:ffffaba306f47d68 EFLAGS: 00010046
 RAX: 0000000000000058 RBX: ffff9130b5eb8800 RCX: 0000000000000006
 RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff9130b7456a00
 RBP: ffff9130c6a70a58 R08: 000000000008d7be R09: 0000000000000001
 R10: 0000000000000000 R11: 0000000000000001 R12: ffff9130c6a715f0
 R13: ffff9130b5eb8824 R14: ffff9130b5eb89f8 R15: ffff9130b5eb89f8
 FS:  0000000000000000(0000) GS:ffff9130b7440000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007efcaaef11a0 CR3: 000000005200a002 CR4: 00000000000606e0
 Call Trace:
  qla24xx_async_gnl+0x113/0x3c0 [qla2xxx]
  ? qla2x00_iocb_work_fn+0x53/0x80 [qla2xxx]
  ? process_one_work+0x1a7/0x3b0
  ? worker_thread+0x30/0x390
  ? create_worker+0x1a0/0x1a0
  ? kthread+0x112/0x130

Link: https://lore.kernel.org/r/20211026115412.27691-3-njavali@marvell.com
Fixes: 726b85487067 ("qla2xxx: Add framework for async fabric discovery")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_init.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 5bbdaefb44efc..fdae25ec554d9 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -976,8 +976,6 @@ static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
 	    sp->name, res, sp->u.iocb_cmd.u.mbx.in_mb[1],
 	    sp->u.iocb_cmd.u.mbx.in_mb[2]);
 
-	if (res == QLA_FUNCTION_TIMEOUT)
-		return;
 
 	sp->fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
 	memset(&ea, 0, sizeof(ea));
@@ -1015,8 +1013,8 @@ static void qla24xx_async_gnl_sp_done(srb_t *sp, int res)
 	spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 
 	list_for_each_entry_safe(fcport, tf, &h, gnl_entry) {
-		list_del_init(&fcport->gnl_entry);
 		spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
+		list_del_init(&fcport->gnl_entry);
 		fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
 		spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
 		ea.fcport = fcport;
-- 
GitLab


From 0afb3bc53435b31fe66bb9305cdd8a3a80f181ca Mon Sep 17 00:00:00 2001
From: Quinn Tran <qutran@marvell.com>
Date: Tue, 26 Oct 2021 04:54:02 -0700
Subject: [PATCH 1422/4878] scsi: qla2xxx: Turn off target reset during
 issue_lip

[ Upstream commit 0b7a9fd934a68ebfc1019811b7bdc1742072ad7b ]

When user uses issue_lip to do link bounce, driver sends additional target
reset to remote device before resetting the link. The target reset would
affect other paths with active I/Os. This patch will remove the unnecessary
target reset.

Link: https://lore.kernel.org/r/20211026115412.27691-4-njavali@marvell.com
Fixes: 5854771e314e ("[SCSI] qla2xxx: Add ISPFX00 specific bus reset routine")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_gbl.h |  2 --
 drivers/scsi/qla2xxx/qla_mr.c  | 23 -----------------------
 drivers/scsi/qla2xxx/qla_os.c  | 27 ++-------------------------
 3 files changed, 2 insertions(+), 50 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index e39b4f2da73a0..3bc1850273421 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -158,7 +158,6 @@ extern int ql2xasynctmfenable;
 extern int ql2xgffidenable;
 extern int ql2xenabledif;
 extern int ql2xenablehba_err_chk;
-extern int ql2xtargetreset;
 extern int ql2xdontresethba;
 extern uint64_t ql2xmaxlun;
 extern int ql2xmdcapmask;
@@ -791,7 +790,6 @@ extern void qlafx00_abort_iocb(srb_t *, struct abort_iocb_entry_fx00 *);
 extern void qlafx00_fxdisc_iocb(srb_t *, struct fxdisc_entry_fx00 *);
 extern void qlafx00_timer_routine(scsi_qla_host_t *);
 extern int qlafx00_rescan_isp(scsi_qla_host_t *);
-extern int qlafx00_loop_reset(scsi_qla_host_t *vha);
 
 /* qla82xx related functions */
 
diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c
index ca73066853255..7178646ee0f06 100644
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -738,29 +738,6 @@ qlafx00_lun_reset(fc_port_t *fcport, uint64_t l, int tag)
 	return qla2x00_async_tm_cmd(fcport, TCF_LUN_RESET, l, tag);
 }
 
-int
-qlafx00_loop_reset(scsi_qla_host_t *vha)
-{
-	int ret;
-	struct fc_port *fcport;
-	struct qla_hw_data *ha = vha->hw;
-
-	if (ql2xtargetreset) {
-		list_for_each_entry(fcport, &vha->vp_fcports, list) {
-			if (fcport->port_type != FCT_TARGET)
-				continue;
-
-			ret = ha->isp_ops->target_reset(fcport, 0, 0);
-			if (ret != QLA_SUCCESS) {
-				ql_dbg(ql_dbg_taskm, vha, 0x803d,
-				    "Bus Reset failed: Reset=%d "
-				    "d_id=%x.\n", ret, fcport->d_id.b24);
-			}
-		}
-	}
-	return QLA_SUCCESS;
-}
-
 int
 qlafx00_iospace_config(struct qla_hw_data *ha)
 {
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 30ce84468c759..e7f73a167fbd6 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -197,12 +197,6 @@ MODULE_PARM_DESC(ql2xdbwr,
 		" 0 -- Regular doorbell.\n"
 		" 1 -- CAMRAM doorbell (faster).\n");
 
-int ql2xtargetreset = 1;
-module_param(ql2xtargetreset, int, S_IRUGO);
-MODULE_PARM_DESC(ql2xtargetreset,
-		 "Enable target reset."
-		 "Default is 1 - use hw defaults.");
-
 int ql2xgffidenable;
 module_param(ql2xgffidenable, int, S_IRUGO);
 MODULE_PARM_DESC(ql2xgffidenable,
@@ -1652,27 +1646,10 @@ int
 qla2x00_loop_reset(scsi_qla_host_t *vha)
 {
 	int ret;
-	struct fc_port *fcport;
 	struct qla_hw_data *ha = vha->hw;
 
-	if (IS_QLAFX00(ha)) {
-		return qlafx00_loop_reset(vha);
-	}
-
-	if (ql2xtargetreset == 1 && ha->flags.enable_target_reset) {
-		list_for_each_entry(fcport, &vha->vp_fcports, list) {
-			if (fcport->port_type != FCT_TARGET)
-				continue;
-
-			ret = ha->isp_ops->target_reset(fcport, 0, 0);
-			if (ret != QLA_SUCCESS) {
-				ql_dbg(ql_dbg_taskm, vha, 0x802c,
-				    "Bus Reset failed: Reset=%d "
-				    "d_id=%x.\n", ret, fcport->d_id.b24);
-			}
-		}
-	}
-
+	if (IS_QLAFX00(ha))
+		return QLA_SUCCESS;
 
 	if (ha->flags.enable_lip_full_login && !IS_CNA_CAPABLE(ha)) {
 		atomic_set(&vha->loop_state, LOOP_DOWN);
-- 
GitLab


From 8c3e204fb6bc035aa18188eaef069bb0c2480d9a Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 26 Oct 2021 21:56:40 -0400
Subject: [PATCH 1423/4878] NFSv4: Fix a regression in
 nfs_set_open_stateid_locked()

[ Upstream commit 01d29f87fcfef38d51ce2b473981a5c1e861ac0a ]

If we already hold open state on the client, yet the server gives us a
completely different stateid to the one we already hold, then we
currently treat it as if it were an out-of-sequence update, and wait for
5 seconds for other updates to come in.
This commit fixes the behaviour so that we immediately start processing
of the new stateid, and then leave it to the call to
nfs4_test_and_free_stateid() to decide what to do with the old stateid.

Fixes: b4868b44c562 ("NFSv4: Wait for stateid updates after CLOSE/OPEN_DOWNGRADE")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4proc.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5365000e83bd6..3106bd28b1132 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1590,15 +1590,16 @@ static bool nfs_stateid_is_sequential(struct nfs4_state *state,
 {
 	if (test_bit(NFS_OPEN_STATE, &state->flags)) {
 		/* The common case - we're updating to a new sequence number */
-		if (nfs4_stateid_match_other(stateid, &state->open_stateid) &&
-			nfs4_stateid_is_next(&state->open_stateid, stateid)) {
-			return true;
+		if (nfs4_stateid_match_other(stateid, &state->open_stateid)) {
+			if (nfs4_stateid_is_next(&state->open_stateid, stateid))
+				return true;
+			return false;
 		}
-	} else {
-		/* This is the first OPEN in this generation */
-		if (stateid->seqid == cpu_to_be32(1))
-			return true;
+		/* The server returned a new stateid */
 	}
+	/* This is the first OPEN in this generation */
+	if (stateid->seqid == cpu_to_be32(1))
+		return true;
 	return false;
 }
 
-- 
GitLab


From de9721ee8ad30ddc625dea12dee849b8cff1ffcf Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Thu, 19 Aug 2021 22:48:08 +0200
Subject: [PATCH 1424/4878] i2c: xlr: Fix a resource leak in the error handling
 path of 'xlr_i2c_probe()'

[ Upstream commit 7f98960c046ee1136e7096aee168eda03aef8a5d ]

A successful 'clk_prepare()' call should be balanced by a corresponding
'clk_unprepare()' call in the error handling path of the probe, as already
done in the remove function.

More specifically, 'clk_prepare_enable()' is used, but 'clk_disable()' is
also already called. So just the unprepare step has still to be done.

Update the error handling path accordingly.

Fixes: 75d31c2372e4 ("i2c: xlr: add support for Sigma Designs controller variant")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-xlr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c
index 126d1393e548b..9ce20652d4942 100644
--- a/drivers/i2c/busses/i2c-xlr.c
+++ b/drivers/i2c/busses/i2c-xlr.c
@@ -431,11 +431,15 @@ static int xlr_i2c_probe(struct platform_device *pdev)
 	i2c_set_adapdata(&priv->adap, priv);
 	ret = i2c_add_numbered_adapter(&priv->adap);
 	if (ret < 0)
-		return ret;
+		goto err_unprepare_clk;
 
 	platform_set_drvdata(pdev, priv);
 	dev_info(&priv->adap.dev, "Added I2C Bus.\n");
 	return 0;
+
+err_unprepare_clk:
+	clk_unprepare(clk);
+	return ret;
 }
 
 static int xlr_i2c_remove(struct platform_device *pdev)
-- 
GitLab


From 111f77594ddfe43224faac85e6b9fb40ce54262f Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@huawei.com>
Date: Fri, 8 Oct 2021 15:44:17 +0800
Subject: [PATCH 1425/4878] xen-pciback: Fix return in pm_ctrl_init()

[ Upstream commit 4745ea2628bb43a7ec34b71763b5a56407b33990 ]

Return NULL instead of passing to ERR_PTR while err is zero,
this fix smatch warnings:
drivers/xen/xen-pciback/conf_space_capability.c:163
 pm_ctrl_init() warn: passing zero to 'ERR_PTR'

Fixes: a92336a1176b ("xen/pciback: Drop two backends, squash and cleanup some code.")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211008074417.8260-1-yuehaibing@huawei.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/xen/xen-pciback/conf_space_capability.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/xen-pciback/conf_space_capability.c b/drivers/xen/xen-pciback/conf_space_capability.c
index 22f13abbe9130..5e53b4817f167 100644
--- a/drivers/xen/xen-pciback/conf_space_capability.c
+++ b/drivers/xen/xen-pciback/conf_space_capability.c
@@ -160,7 +160,7 @@ static void *pm_ctrl_init(struct pci_dev *dev, int offset)
 	}
 
 out:
-	return ERR_PTR(err);
+	return err ? ERR_PTR(err) : NULL;
 }
 
 static const struct config_field caplist_pm[] = {
-- 
GitLab


From e78c267eb74e012063c185356c1dce62e045918c Mon Sep 17 00:00:00 2001
From: Maxim Kiselev <bigunclemax@gmail.com>
Date: Mon, 1 Nov 2021 18:23:41 +0300
Subject: [PATCH 1426/4878] net: davinci_emac: Fix interrupt pacing disable

[ Upstream commit d52bcb47bdf971a59a2467975d2405fcfcb2fa19 ]

This patch allows to use 0 for `coal->rx_coalesce_usecs` param to
disable rx irq coalescing.

Previously we could enable rx irq coalescing via ethtool
(For ex: `ethtool -C eth0 rx-usecs 2000`) but we couldn't disable
it because this part rejects 0 value:

       if (!coal->rx_coalesce_usecs)
               return -EINVAL;

Fixes: 84da2658a619 ("TI DaVinci EMAC : Implement interrupt pacing functionality.")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20211101152343.4193233-1-bigunclemax@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ti/davinci_emac.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 03055c96f0760..ad5293571af4d 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -412,8 +412,20 @@ static int emac_set_coalesce(struct net_device *ndev,
 	u32 int_ctrl, num_interrupts = 0;
 	u32 prescale = 0, addnl_dvdr = 1, coal_intvl = 0;
 
-	if (!coal->rx_coalesce_usecs)
-		return -EINVAL;
+	if (!coal->rx_coalesce_usecs) {
+		priv->coal_intvl = 0;
+
+		switch (priv->version) {
+		case EMAC_VERSION_2:
+			emac_ctrl_write(EMAC_DM646X_CMINTCTRL, 0);
+			break;
+		default:
+			emac_ctrl_write(EMAC_CTRL_EWINTTCNT, 0);
+			break;
+		}
+
+		return 0;
+	}
 
 	coal_intvl = coal->rx_coalesce_usecs;
 
-- 
GitLab


From 628773a759d54e83bb967078c0ce359efbae1cc1 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Tue, 2 Nov 2021 15:02:36 -0700
Subject: [PATCH 1427/4878] ethtool: fix ethtool msg len calculation for pause
 stats

[ Upstream commit 1aabe578dd86e9f2867c4db4fba9a15f4ba1825d ]

ETHTOOL_A_PAUSE_STAT_MAX is the MAX attribute id,
so we need to subtract non-stats and add one to
get a count (IOW -2+1 == -1).

Otherwise we'll see:

  ethnl cmd 21: calculated reply length 40, but consumed 52

Fixes: 9a27a33027f2 ("ethtool: add standard pause stats")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/ethtool_netlink.h      | 3 +++
 include/uapi/linux/ethtool_netlink.h | 4 +++-
 net/ethtool/pause.c                  | 3 +--
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/include/linux/ethtool_netlink.h b/include/linux/ethtool_netlink.h
index 1e7bf78cb3829..aba348d58ff61 100644
--- a/include/linux/ethtool_netlink.h
+++ b/include/linux/ethtool_netlink.h
@@ -10,6 +10,9 @@
 #define __ETHTOOL_LINK_MODE_MASK_NWORDS \
 	DIV_ROUND_UP(__ETHTOOL_LINK_MODE_MASK_NBITS, 32)
 
+#define ETHTOOL_PAUSE_STAT_CNT	(__ETHTOOL_A_PAUSE_STAT_CNT -		\
+				 ETHTOOL_A_PAUSE_STAT_TX_FRAMES)
+
 enum ethtool_multicast_groups {
 	ETHNL_MCGRP_MONITOR,
 };
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index e2bf36e6964b6..c94fa29415021 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -394,7 +394,9 @@ enum {
 	ETHTOOL_A_PAUSE_STAT_TX_FRAMES,
 	ETHTOOL_A_PAUSE_STAT_RX_FRAMES,
 
-	/* add new constants above here */
+	/* add new constants above here
+	 * adjust ETHTOOL_PAUSE_STAT_CNT if adding non-stats!
+	 */
 	__ETHTOOL_A_PAUSE_STAT_CNT,
 	ETHTOOL_A_PAUSE_STAT_MAX = (__ETHTOOL_A_PAUSE_STAT_CNT - 1)
 };
diff --git a/net/ethtool/pause.c b/net/ethtool/pause.c
index d4ac02718b72a..c7bc704c8862a 100644
--- a/net/ethtool/pause.c
+++ b/net/ethtool/pause.c
@@ -62,8 +62,7 @@ static int pause_reply_size(const struct ethnl_req_info *req_base,
 
 	if (req_base->flags & ETHTOOL_FLAG_STATS)
 		n += nla_total_size(0) +	/* _PAUSE_STATS */
-			nla_total_size_64bit(sizeof(u64)) *
-				(ETHTOOL_A_PAUSE_STAT_MAX - 2);
+		     nla_total_size_64bit(sizeof(u64)) * ETHTOOL_PAUSE_STAT_CNT;
 	return n;
 }
 
-- 
GitLab


From 3fe164e7197b7e9cf214671f938aa4b37b0f577e Mon Sep 17 00:00:00 2001
From: Stafford Horne <shorne@gmail.com>
Date: Wed, 3 Nov 2021 20:19:33 +0900
Subject: [PATCH 1428/4878] openrisc: fix SMP tlb flush NULL pointer
 dereference

[ Upstream commit 27dff9a9c247d4e38d82c2e7234914cfe8499294 ]

Throughout the OpenRISC kernel port VMA is passed as NULL when flushing
kernel tlb entries.  Somehow this was missed when I was testing
c28b27416da9 ("openrisc: Implement proper SMP tlb flushing") and now the
SMP kernel fails to completely boot.

In OpenRISC VMA is used only to determine which cores need to have their
TLB entries flushed.

This patch updates the logic to flush tlbs on all cores when the VMA is
passed as NULL.  Also, we update places VMA is passed as NULL to use
flush_tlb_kernel_range instead.  Now, the only place VMA is passed as
NULL is in the implementation of flush_tlb_kernel_range.

Fixes: c28b27416da9 ("openrisc: Implement proper SMP tlb flushing")
Reported-by: Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/openrisc/kernel/dma.c | 4 ++--
 arch/openrisc/kernel/smp.c | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 1b16d97e7da7f..a82b2caaa560d 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -33,7 +33,7 @@ page_set_nocache(pte_t *pte, unsigned long addr,
 	 * Flush the page out of the TLB so that the new page flags get
 	 * picked up next time there's an access
 	 */
-	flush_tlb_page(NULL, addr);
+	flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
 
 	/* Flush page out of dcache */
 	for (cl = __pa(addr); cl < __pa(next); cl += cpuinfo->dcache_block_size)
@@ -56,7 +56,7 @@ page_clear_nocache(pte_t *pte, unsigned long addr,
 	 * Flush the page out of the TLB so that the new page flags get
 	 * picked up next time there's an access
 	 */
-	flush_tlb_page(NULL, addr);
+	flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
 
 	return 0;
 }
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
index e4dad76066aed..18b320a06fe56 100644
--- a/arch/openrisc/kernel/smp.c
+++ b/arch/openrisc/kernel/smp.c
@@ -261,7 +261,7 @@ static inline void ipi_flush_tlb_range(void *info)
 	local_flush_tlb_range(NULL, fd->addr1, fd->addr2);
 }
 
-static void smp_flush_tlb_range(struct cpumask *cmask, unsigned long start,
+static void smp_flush_tlb_range(const struct cpumask *cmask, unsigned long start,
 				unsigned long end)
 {
 	unsigned int cpuid;
@@ -309,7 +309,9 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
 void flush_tlb_range(struct vm_area_struct *vma,
 		     unsigned long start, unsigned long end)
 {
-	smp_flush_tlb_range(mm_cpumask(vma->vm_mm), start, end);
+	const struct cpumask *cmask = vma ? mm_cpumask(vma->vm_mm)
+					  : cpu_online_mask;
+	smp_flush_tlb_range(cmask, start, end);
 }
 
 /* Instruction cache invalidate - performed on each cpu */
-- 
GitLab


From e04a7a84bb77f9cdf4475340fe931389bc72331c Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Tue, 2 Nov 2021 10:12:18 +0800
Subject: [PATCH 1429/4878] net: vlan: fix a UAF in vlan_dev_real_dev()

[ Upstream commit 563bcbae3ba233c275c244bfce2efe12938f5363 ]

The real_dev of a vlan net_device may be freed after
unregister_vlan_dev(). Access the real_dev continually by
vlan_dev_real_dev() will trigger the UAF problem for the
real_dev like following:

==================================================================
BUG: KASAN: use-after-free in vlan_dev_real_dev+0xf9/0x120
Call Trace:
 kasan_report.cold+0x83/0xdf
 vlan_dev_real_dev+0xf9/0x120
 is_eth_port_of_netdev_filter.part.0+0xb1/0x2c0
 is_eth_port_of_netdev_filter+0x28/0x40
 ib_enum_roce_netdev+0x1a3/0x300
 ib_enum_all_roce_netdevs+0xc7/0x140
 netdevice_event_work_handler+0x9d/0x210
...

Freed by task 9288:
 kasan_save_stack+0x1b/0x40
 kasan_set_track+0x1c/0x30
 kasan_set_free_info+0x20/0x30
 __kasan_slab_free+0xfc/0x130
 slab_free_freelist_hook+0xdd/0x240
 kfree+0xe4/0x690
 kvfree+0x42/0x50
 device_release+0x9f/0x240
 kobject_put+0x1c8/0x530
 put_device+0x1b/0x30
 free_netdev+0x370/0x540
 ppp_destroy_interface+0x313/0x3d0
...

Move the put_device(real_dev) to vlan_dev_free(). Ensure
real_dev not be freed before vlan_dev unregistered.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot+e4df4e1389e28972e955@syzkaller.appspotmail.com
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/8021q/vlan.c     | 3 ---
 net/8021q/vlan_dev.c | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 15bbfaf943fd1..ad3780067a7d8 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -120,9 +120,6 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
 	}
 
 	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);
-
-	/* Get rid of the vlan's reference to real_dev */
-	dev_put(real_dev);
 }
 
 int vlan_check_real_dev(struct net_device *real_dev,
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index ec8408d1638fb..c7eba7dab0938 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -813,6 +813,9 @@ static void vlan_dev_free(struct net_device *dev)
 
 	free_percpu(vlan->vlan_pcpu_stats);
 	vlan->vlan_pcpu_stats = NULL;
+
+	/* Get rid of the vlan's reference to real_dev */
+	dev_put(vlan->real_dev);
 }
 
 void vlan_setup(struct net_device *dev)
-- 
GitLab


From 354ae5ca6ce17ed270650436f8449acecb032278 Mon Sep 17 00:00:00 2001
From: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Date: Thu, 6 May 2021 08:40:03 -0700
Subject: [PATCH 1430/4878] ice: Fix replacing VF hardware MAC to existing MAC
 filter

[ Upstream commit ce572a5b88d5ca6737b5e23da9892792fd708ad3 ]

VF was not able to change its hardware MAC address in case
the new address was already present in the MAC filter list.
Change the handling of VF add mac request to not return
if requested MAC address is already present on the list
and check if its hardware MAC needs to be updated in this case.

Fixes: ed4c068d46f6 ("ice: Enable ip link show on the PF to display VF unicast MAC(s)")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index c9f82fd3cf48d..22e23199c92c1 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -3068,6 +3068,7 @@ ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
 {
 	struct device *dev = ice_pf_to_dev(vf->pf);
 	enum ice_status status;
+	int ret = 0;
 
 	/* default unicast MAC already added */
 	if (ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
@@ -3080,13 +3081,18 @@ ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
 
 	status = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
 	if (status == ICE_ERR_ALREADY_EXISTS) {
-		dev_err(dev, "MAC %pM already exists for VF %d\n", mac_addr,
+		dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr,
 			vf->vf_id);
-		return -EEXIST;
+		/* don't return since we might need to update
+		 * the primary MAC in ice_vfhw_mac_add() below
+		 */
+		ret = -EEXIST;
 	} else if (status) {
 		dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %s\n",
 			mac_addr, vf->vf_id, ice_stat_str(status));
 		return -EIO;
+	} else {
+		vf->num_mac++;
 	}
 
 	/* Set the default LAN address to the latest unicast MAC address added
@@ -3096,9 +3102,7 @@ ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
 	if (is_unicast_ether_addr(mac_addr))
 		ether_addr_copy(vf->dflt_lan_addr.addr, mac_addr);
 
-	vf->num_mac++;
-
-	return 0;
+	return ret;
 }
 
 /**
-- 
GitLab


From d83832d4a838e94282205b565c9c411d00ebceee Mon Sep 17 00:00:00 2001
From: Brett Creeley <brett.creeley@intel.com>
Date: Thu, 9 Sep 2021 14:38:08 -0700
Subject: [PATCH 1431/4878] ice: Fix not stopping Tx queues for VFs

[ Upstream commit b385cca47363316c6d9a74ae9db407bbc281f815 ]

When a VF is removed and/or reset its Tx queues need to be
stopped from the PF. This is done by calling the ice_dis_vf_qs()
function, which calls ice_vsi_stop_lan_tx_rings(). Currently
ice_dis_vf_qs() is protected by the VF state bit ICE_VF_STATE_QS_ENA.
Unfortunately, this is causing the Tx queues to not be disabled in some
cases and when the VF tries to re-enable/reconfigure its Tx queues over
virtchnl the op is failing. This is because a VF can be reset and/or
removed before the ICE_VF_STATE_QS_ENA bit is set, but the Tx queues
were already configured via ice_vsi_cfg_single_txq() in the
VIRTCHNL_OP_CONFIG_VSI_QUEUES op. However, the ICE_VF_STATE_QS_ENA bit
is set on a successful VIRTCHNL_OP_ENABLE_QUEUES, which will always
happen after the VIRTCHNL_OP_CONFIG_VSI_QUEUES op.

This was causing the following error message when loading the ice
driver, creating VFs, and modifying VF trust in an endless loop:

[35274.192484] ice 0000:88:00.0: Failed to set LAN Tx queue context, error: ICE_ERR_PARAM
[35274.193074] ice 0000:88:00.0: VF 0 failed opcode 6, retval: -5
[35274.193640] iavf 0000:88:01.0: PF returned error -5 (IAVF_ERR_PARAM) to our request 6

Fix this by always calling ice_dis_vf_qs() and silencing the error
message in ice_vsi_stop_tx_ring() since the calling code ignores the
return anyway. Also, all other places that call ice_vsi_stop_tx_ring()
catch the error, so this doesn't affect those flows since there was no
change to the values the function returns.

Other solutions were considered (i.e. tracking which VF queues had been
"started/configured" in VIRTCHNL_OP_CONFIG_VSI_QUEUES, but it seemed
more complicated than it was worth. This solution also brings in the
chance for other unexpected conditions due to invalid state bit checks.
So, the proposed solution seemed like the best option since there is no
harm in failing to stop Tx queues that were never started.

This issue can be seen using the following commands:

for i in {0..50}; do
        rmmod ice
        modprobe ice

        sleep 1

        echo 1 > /sys/class/net/ens785f0/device/sriov_numvfs
        echo 1 > /sys/class/net/ens785f1/device/sriov_numvfs

        ip link set ens785f1 vf 0 trust on
        ip link set ens785f0 vf 0 trust on

        sleep 2

        echo 0 > /sys/class/net/ens785f0/device/sriov_numvfs
        echo 0 > /sys/class/net/ens785f1/device/sriov_numvfs
        sleep 1
        echo 1 > /sys/class/net/ens785f0/device/sriov_numvfs
        echo 1 > /sys/class/net/ens785f1/device/sriov_numvfs

        ip link set ens785f1 vf 0 trust on
        ip link set ens785f0 vf 0 trust on
done

Fixes: 77ca27c41705 ("ice: add support for virtchnl_queue_select.[tx|rx]_queues bitmap")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_base.c        | 2 +-
 drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c | 6 ++----
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c
index fe4320e2d1f2f..1929847b8c404 100644
--- a/drivers/net/ethernet/intel/ice/ice_base.c
+++ b/drivers/net/ethernet/intel/ice/ice_base.c
@@ -839,7 +839,7 @@ ice_vsi_stop_tx_ring(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src,
 	} else if (status == ICE_ERR_DOES_NOT_EXIST) {
 		dev_dbg(ice_pf_to_dev(vsi->back), "LAN Tx queues do not exist, nothing to disable\n");
 	} else if (status) {
-		dev_err(ice_pf_to_dev(vsi->back), "Failed to disable LAN Tx queues, error: %s\n",
+		dev_dbg(ice_pf_to_dev(vsi->back), "Failed to disable LAN Tx queues, error: %s\n",
 			ice_stat_str(status));
 		return -ENODEV;
 	}
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 22e23199c92c1..69ce5d60a8570 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -362,8 +362,7 @@ void ice_free_vfs(struct ice_pf *pf)
 
 	/* Avoid wait time by stopping all VFs at the same time */
 	ice_for_each_vf(pf, i)
-		if (test_bit(ICE_VF_STATE_QS_ENA, pf->vf[i].vf_states))
-			ice_dis_vf_qs(&pf->vf[i]);
+		ice_dis_vf_qs(&pf->vf[i]);
 
 	tmp = pf->num_alloc_vfs;
 	pf->num_qps_per_vf = 0;
@@ -1291,8 +1290,7 @@ bool ice_reset_vf(struct ice_vf *vf, bool is_vflr)
 
 	vsi = pf->vsi[vf->lan_vsi_idx];
 
-	if (test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states))
-		ice_dis_vf_qs(vf);
+	ice_dis_vf_qs(vf);
 
 	/* Call Disable LAN Tx queue AQ whether or not queues are
 	 * enabled. This is needed for successful completion of VFR.
-- 
GitLab


From ee8a3ae48a94763fe446349614a11f3cd6b90f43 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 31 Oct 2021 16:31:35 +0100
Subject: [PATCH 1432/4878] ACPI: PMIC: Fix intel_pmic_regs_handler() read
 accesses

[ Upstream commit 009a789443fe4c8e6b1ecb7c16b4865c026184cd ]

The handling of PMIC register reads through writing 0 to address 4
of the OpRegion is wrong. Instead of returning the read value
through the value64, which is a no-op for function == ACPI_WRITE calls,
store the value and then on a subsequent function == ACPI_READ with
address == 3 (the address for the value field of the OpRegion)
return the stored value.

This has been tested on a Xiaomi Mi Pad 2 and makes the ACPI battery dev
there mostly functional (unfortunately there are still other issues).

Here are the SET() / GET() functions of the PMIC ACPI device,
which use this OpRegion, which clearly show the new behavior to
be correct:

OperationRegion (REGS, 0x8F, Zero, 0x50)
Field (REGS, ByteAcc, NoLock, Preserve)
{
    CLNT,   8,
    SA,     8,
    OFF,    8,
    VAL,    8,
    RWM,    8
}

Method (GET, 3, Serialized)
{
    If ((AVBE == One))
    {
        CLNT = Arg0
        SA = Arg1
        OFF = Arg2
        RWM = Zero
        If ((AVBG == One))
        {
            GPRW = Zero
        }
    }

    Return (VAL) /* \_SB_.PCI0.I2C7.PMI5.VAL_ */
}

Method (SET, 4, Serialized)
{
    If ((AVBE == One))
    {
        CLNT = Arg0
        SA = Arg1
        OFF = Arg2
        VAL = Arg3
        RWM = One
        If ((AVBG == One))
        {
            GPRW = One
        }
    }
}

Fixes: 0afa877a5650 ("ACPI / PMIC: intel: add REGS operation region support")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/pmic/intel_pmic.c | 51 +++++++++++++++++++---------------
 1 file changed, 28 insertions(+), 23 deletions(-)

diff --git a/drivers/acpi/pmic/intel_pmic.c b/drivers/acpi/pmic/intel_pmic.c
index a371f273f99dd..9cde299eba880 100644
--- a/drivers/acpi/pmic/intel_pmic.c
+++ b/drivers/acpi/pmic/intel_pmic.c
@@ -211,31 +211,36 @@ static acpi_status intel_pmic_regs_handler(u32 function,
 		void *handler_context, void *region_context)
 {
 	struct intel_pmic_opregion *opregion = region_context;
-	int result = 0;
+	int result = -EINVAL;
+
+	if (function == ACPI_WRITE) {
+		switch (address) {
+		case 0:
+			return AE_OK;
+		case 1:
+			opregion->ctx.addr |= (*value64 & 0xff) << 8;
+			return AE_OK;
+		case 2:
+			opregion->ctx.addr |= *value64 & 0xff;
+			return AE_OK;
+		case 3:
+			opregion->ctx.val = *value64 & 0xff;
+			return AE_OK;
+		case 4:
+			if (*value64) {
+				result = regmap_write(opregion->regmap, opregion->ctx.addr,
+						      opregion->ctx.val);
+			} else {
+				result = regmap_read(opregion->regmap, opregion->ctx.addr,
+						     &opregion->ctx.val);
+			}
+			opregion->ctx.addr = 0;
+		}
+	}
 
-	switch (address) {
-	case 0:
-		return AE_OK;
-	case 1:
-		opregion->ctx.addr |= (*value64 & 0xff) << 8;
-		return AE_OK;
-	case 2:
-		opregion->ctx.addr |= *value64 & 0xff;
+	if (function == ACPI_READ && address == 3) {
+		*value64 = opregion->ctx.val;
 		return AE_OK;
-	case 3:
-		opregion->ctx.val = *value64 & 0xff;
-		return AE_OK;
-	case 4:
-		if (*value64) {
-			result = regmap_write(opregion->regmap, opregion->ctx.addr,
-					      opregion->ctx.val);
-		} else {
-			result = regmap_read(opregion->regmap, opregion->ctx.addr,
-					     &opregion->ctx.val);
-			if (result == 0)
-				*value64 = opregion->ctx.val;
-		}
-		memset(&opregion->ctx, 0x00, sizeof(opregion->ctx));
 	}
 
 	if (result < 0) {
-- 
GitLab


From 090e17075f6780dba35f91bf34f98170f29cb44f Mon Sep 17 00:00:00 2001
From: Chenyuan Mi <cymi20@fudan.edu.cn>
Date: Tue, 7 Sep 2021 20:26:33 +0800
Subject: [PATCH 1433/4878] drm/nouveau/svm: Fix refcount leak bug and missing
 check against null bug

[ Upstream commit 6bb8c2d51811eb5e6504f49efe3b089d026009d2 ]

The reference counting issue happens in one exception handling path of
nouveau_svmm_bind(). When cli->svm.svmm is null, the function forgets
to decrease the refcount of mm increased by get_task_mm(), causing a
refcount leak.

Fix this issue by using mmput() to decrease the refcount in the
exception handling path.

Also, the function forgets to do check against null when get mm
by get_task_mm().

Fix this issue by adding null check after get mm by get_task_mm().

Signed-off-by: Chenyuan Mi <cymi20@fudan.edu.cn>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Fixes: 822cab6150d3 ("drm/nouveau/svm: check for SVM initialized before migrating")
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210907122633.16665-1-cymi20@fudan.edu.cn
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/14
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_svm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
index 1c3f890377d2c..f67700c028c75 100644
--- a/drivers/gpu/drm/nouveau/nouveau_svm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
@@ -156,10 +156,14 @@ nouveau_svmm_bind(struct drm_device *dev, void *data,
 	 */
 
 	mm = get_task_mm(current);
+	if (!mm) {
+		return -EINVAL;
+	}
 	mmap_read_lock(mm);
 
 	if (!cli->svm.svmm) {
 		mmap_read_unlock(mm);
+		mmput(mm);
 		return -EINVAL;
 	}
 
-- 
GitLab


From acb01e962af7d6867516a6f36e181301642af059 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Wed, 3 Nov 2021 22:08:28 +0100
Subject: [PATCH 1434/4878] net: phy: fix duplex out of sync problem while
 changing settings

[ Upstream commit a4db9055fdb9cf607775c66d39796caf6439ec92 ]

As reported by Zhang there's a small issue if in forced mode the duplex
mode changes with the link staying up [0]. In this case the MAC isn't
notified about the change.

The proposed patch relies on the phylib state machine and ignores the
fact that there are drivers that uses phylib but not the phylib state
machine. So let's don't change the behavior for such drivers and fix
it w/o re-adding state PHY_FORCING for the case that phylib state
machine is used.

[0] https://lore.kernel.org/netdev/a5c26ffd-4ee4-a5e6-4103-873208ce0dc5@huawei.com/T/

Fixes: 2bd229df5e2e ("net: phy: remove state PHY_FORCING")
Reported-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Tested-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/7b8b9456-a93f-abbc-1dc5-a2c2542f932c@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phy.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 5ee7cde0c2e97..db7866b6f7525 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -831,7 +831,12 @@ int phy_ethtool_ksettings_set(struct phy_device *phydev,
 	phydev->mdix_ctrl = cmd->base.eth_tp_mdix_ctrl;
 
 	/* Restart the PHY */
-	_phy_start_aneg(phydev);
+	if (phy_is_started(phydev)) {
+		phydev->state = PHY_UP;
+		phy_trigger_machine(phydev);
+	} else {
+		_phy_start_aneg(phydev);
+	}
 
 	mutex_unlock(&phydev->lock);
 	return 0;
-- 
GitLab


From 6439b91fef2c5f49df7f4dbb9fe5c2f4317ab828 Mon Sep 17 00:00:00 2001
From: Huang Guobin <huangguobin4@huawei.com>
Date: Tue, 2 Nov 2021 17:37:33 +0800
Subject: [PATCH 1435/4878] bonding: Fix a use-after-free problem when
 bond_sysfs_slave_add() failed

[ Upstream commit b93c6a911a3fe926b00add28f3b932007827c4ca ]

When I do fuzz test for bonding device interface, I got the following
use-after-free Calltrace:

==================================================================
BUG: KASAN: use-after-free in bond_enslave+0x1521/0x24f0
Read of size 8 at addr ffff88825bc11c00 by task ifenslave/7365

CPU: 5 PID: 7365 Comm: ifenslave Tainted: G            E     5.15.0-rc1+ #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014
Call Trace:
 dump_stack_lvl+0x6c/0x8b
 print_address_description.constprop.0+0x48/0x70
 kasan_report.cold+0x82/0xdb
 __asan_load8+0x69/0x90
 bond_enslave+0x1521/0x24f0
 bond_do_ioctl+0x3e0/0x450
 dev_ifsioc+0x2ba/0x970
 dev_ioctl+0x112/0x710
 sock_do_ioctl+0x118/0x1b0
 sock_ioctl+0x2e0/0x490
 __x64_sys_ioctl+0x118/0x150
 do_syscall_64+0x35/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f19159cf577
Code: b3 66 90 48 8b 05 11 89 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 78
RSP: 002b:00007ffeb3083c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffeb3084bca RCX: 00007f19159cf577
RDX: 00007ffeb3083ce0 RSI: 0000000000008990 RDI: 0000000000000003
RBP: 00007ffeb3084bc4 R08: 0000000000000040 R09: 0000000000000000
R10: 00007ffeb3084bc0 R11: 0000000000000246 R12: 00007ffeb3083ce0
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffeb3083cb0

Allocated by task 7365:
 kasan_save_stack+0x23/0x50
 __kasan_kmalloc+0x83/0xa0
 kmem_cache_alloc_trace+0x22e/0x470
 bond_enslave+0x2e1/0x24f0
 bond_do_ioctl+0x3e0/0x450
 dev_ifsioc+0x2ba/0x970
 dev_ioctl+0x112/0x710
 sock_do_ioctl+0x118/0x1b0
 sock_ioctl+0x2e0/0x490
 __x64_sys_ioctl+0x118/0x150
 do_syscall_64+0x35/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Freed by task 7365:
 kasan_save_stack+0x23/0x50
 kasan_set_track+0x20/0x30
 kasan_set_free_info+0x24/0x40
 __kasan_slab_free+0xf2/0x130
 kfree+0xd1/0x5c0
 slave_kobj_release+0x61/0x90
 kobject_put+0x102/0x180
 bond_sysfs_slave_add+0x7a/0xa0
 bond_enslave+0x11b6/0x24f0
 bond_do_ioctl+0x3e0/0x450
 dev_ifsioc+0x2ba/0x970
 dev_ioctl+0x112/0x710
 sock_do_ioctl+0x118/0x1b0
 sock_ioctl+0x2e0/0x490
 __x64_sys_ioctl+0x118/0x150
 do_syscall_64+0x35/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Last potentially related work creation:
 kasan_save_stack+0x23/0x50
 kasan_record_aux_stack+0xb7/0xd0
 insert_work+0x43/0x190
 __queue_work+0x2e3/0x970
 delayed_work_timer_fn+0x3e/0x50
 call_timer_fn+0x148/0x470
 run_timer_softirq+0x8a8/0xc50
 __do_softirq+0x107/0x55f

Second to last potentially related work creation:
 kasan_save_stack+0x23/0x50
 kasan_record_aux_stack+0xb7/0xd0
 insert_work+0x43/0x190
 __queue_work+0x2e3/0x970
 __queue_delayed_work+0x130/0x180
 queue_delayed_work_on+0xa7/0xb0
 bond_enslave+0xe25/0x24f0
 bond_do_ioctl+0x3e0/0x450
 dev_ifsioc+0x2ba/0x970
 dev_ioctl+0x112/0x710
 sock_do_ioctl+0x118/0x1b0
 sock_ioctl+0x2e0/0x490
 __x64_sys_ioctl+0x118/0x150
 do_syscall_64+0x35/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff88825bc11c00
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 0 bytes inside of
 1024-byte region [ffff88825bc11c00, ffff88825bc12000)
The buggy address belongs to the page:
page:ffffea00096f0400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x25bc10
head:ffffea00096f0400 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x57ff00000010200(slab|head|node=1|zone=2|lastcpupid=0x7ff)
raw: 057ff00000010200 ffffea0009a71c08 ffff888240001968 ffff88810004dbc0
raw: 0000000000000000 00000000000a000a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88825bc11b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88825bc11b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88825bc11c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff88825bc11c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88825bc11d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

Put new_slave in bond_sysfs_slave_add() will cause use-after-free problems
when new_slave is accessed in the subsequent error handling process. Since
new_slave will be put in the subsequent error handling process, remove the
unnecessary put to fix it.
In addition, when sysfs_create_file() fails, if some files have been crea-
ted successfully, we need to call sysfs_remove_file() to remove them.
Since there are sysfs_create_files() & sysfs_remove_files() can be used,
use these two functions instead.

Fixes: 7afcaec49696 (bonding: use kobject_put instead of _del after kobject_add)
Signed-off-by: Huang Guobin <huangguobin4@huawei.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_sysfs_slave.c | 36 ++++++++------------------
 1 file changed, 11 insertions(+), 25 deletions(-)

diff --git a/drivers/net/bonding/bond_sysfs_slave.c b/drivers/net/bonding/bond_sysfs_slave.c
index fd07561da0348..6a6cdd0bb2585 100644
--- a/drivers/net/bonding/bond_sysfs_slave.c
+++ b/drivers/net/bonding/bond_sysfs_slave.c
@@ -108,15 +108,15 @@ static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf)
 }
 static SLAVE_ATTR_RO(ad_partner_oper_port_state);
 
-static const struct slave_attribute *slave_attrs[] = {
-	&slave_attr_state,
-	&slave_attr_mii_status,
-	&slave_attr_link_failure_count,
-	&slave_attr_perm_hwaddr,
-	&slave_attr_queue_id,
-	&slave_attr_ad_aggregator_id,
-	&slave_attr_ad_actor_oper_port_state,
-	&slave_attr_ad_partner_oper_port_state,
+static const struct attribute *slave_attrs[] = {
+	&slave_attr_state.attr,
+	&slave_attr_mii_status.attr,
+	&slave_attr_link_failure_count.attr,
+	&slave_attr_perm_hwaddr.attr,
+	&slave_attr_queue_id.attr,
+	&slave_attr_ad_aggregator_id.attr,
+	&slave_attr_ad_actor_oper_port_state.attr,
+	&slave_attr_ad_partner_oper_port_state.attr,
 	NULL
 };
 
@@ -137,24 +137,10 @@ const struct sysfs_ops slave_sysfs_ops = {
 
 int bond_sysfs_slave_add(struct slave *slave)
 {
-	const struct slave_attribute **a;
-	int err;
-
-	for (a = slave_attrs; *a; ++a) {
-		err = sysfs_create_file(&slave->kobj, &((*a)->attr));
-		if (err) {
-			kobject_put(&slave->kobj);
-			return err;
-		}
-	}
-
-	return 0;
+	return sysfs_create_files(&slave->kobj, slave_attrs);
 }
 
 void bond_sysfs_slave_del(struct slave *slave)
 {
-	const struct slave_attribute **a;
-
-	for (a = slave_attrs; *a; ++a)
-		sysfs_remove_file(&slave->kobj, &((*a)->attr));
+	sysfs_remove_files(&slave->kobj, slave_attrs);
 }
-- 
GitLab


From 300d874748166515581ea13030b4d2060ca5b3e0 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Fri, 28 May 2021 07:51:26 -0400
Subject: [PATCH 1436/4878] mfd: core: Add missing of_node_put for loop
 iteration

[ Upstream commit 002be81140075e17a1ebd5c3c55e356fbab0ddad ]

Early exits from for_each_child_of_node() should decrement the
node reference counter.  Reported by Coccinelle:

  drivers/mfd/mfd-core.c:197:2-24: WARNING:
    Function "for_each_child_of_node" should have of_node_put() before goto around lines 209.

Fixes: c94bb233a9fe ("mfd: Make MFD core code Device Tree and IRQ domain aware")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210528115126.18370-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/mfd-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index fc00aaccb5f72..a3a6faa99de05 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -210,6 +210,7 @@ static int mfd_add_device(struct device *parent, int id,
 			if (of_device_is_compatible(np, cell->of_compatible)) {
 				/* Ignore 'disabled' devices error free */
 				if (!of_device_is_available(np)) {
+					of_node_put(np);
 					ret = 0;
 					goto fail_alias;
 				}
@@ -217,6 +218,7 @@ static int mfd_add_device(struct device *parent, int id,
 				ret = mfd_match_of_node_to_dev(pdev, np, cell);
 				if (ret == -EAGAIN)
 					continue;
+				of_node_put(np);
 				if (ret)
 					goto fail_alias;
 
-- 
GitLab


From a3c205c017f8996b0a706a908f4d8480296d6ec0 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Tue, 19 Oct 2021 17:00:04 +0200
Subject: [PATCH 1437/4878] can: mcp251xfd: mcp251xfd_chip_start(): fix error
 handling for mcp251xfd_chip_rx_int_enable()

[ Upstream commit 69c55f6e7669d46bb40e41f6e2b218428178368a ]

This patch fixes the error handling for mcp251xfd_chip_rx_int_enable().
Instead just returning the error, properly shut down the chip.

Link: https://lore.kernel.org/all/20211106201526.44292-2-mkl@pengutronix.de
Fixes: 55e5b97f003e ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
index 68ff931993c25..4e13f6dfb91a2 100644
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
@@ -1041,7 +1041,7 @@ static int mcp251xfd_chip_start(struct mcp251xfd_priv *priv)
 
 	err = mcp251xfd_chip_rx_int_enable(priv);
 	if (err)
-		return err;
+		goto out_chip_stop;
 
 	err = mcp251xfd_chip_ecc_init(priv);
 	if (err)
-- 
GitLab


From 64bde0c2db50c87df4dffd8c0e86443546a41844 Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Fri, 5 Nov 2021 13:45:03 -0700
Subject: [PATCH 1438/4878] mm/zsmalloc.c: close race window between
 zs_pool_dec_isolated() and zs_unregister_migration()

[ Upstream commit afe8605ca45424629fdddfd85984b442c763dc47 ]

There is one possible race window between zs_pool_dec_isolated() and
zs_unregister_migration() because wait_for_isolated_drain() checks the
isolated count without holding class->lock and there is no order inside
zs_pool_dec_isolated().  Thus the below race window could be possible:

  zs_pool_dec_isolated		zs_unregister_migration
    check pool->destroying != 0
				  pool->destroying = true;
				  smp_mb();
				  wait_for_isolated_drain()
				    wait for pool->isolated_pages == 0
    atomic_long_dec(&pool->isolated_pages);
    atomic_long_read(&pool->isolated_pages) == 0

Since we observe the pool->destroying (false) before atomic_long_dec()
for pool->isolated_pages, waking pool->migration_wait up is missed.

Fix this by ensure checking pool->destroying happens after the
atomic_long_dec(&pool->isolated_pages).

Link: https://lkml.kernel.org/r/20210708115027.7557-1-linmiaohe@huawei.com
Fixes: 701d678599d0 ("mm/zsmalloc.c: fix race condition in zs_destroy_pool")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Henry Burns <henryburns@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 mm/zsmalloc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 7a0b79b0a6899..73cd50735df29 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1835,10 +1835,11 @@ static inline void zs_pool_dec_isolated(struct zs_pool *pool)
 	VM_BUG_ON(atomic_long_read(&pool->isolated_pages) <= 0);
 	atomic_long_dec(&pool->isolated_pages);
 	/*
-	 * There's no possibility of racing, since wait_for_isolated_drain()
-	 * checks the isolated count under &class->lock after enqueuing
-	 * on migration_wait.
+	 * Checking pool->destroying must happen after atomic_long_dec()
+	 * for pool->isolated_pages above. Paired with the smp_mb() in
+	 * zs_unregister_migration().
 	 */
+	smp_mb__after_atomic();
 	if (atomic_long_read(&pool->isolated_pages) == 0 && pool->destroying)
 		wake_up_all(&pool->migration_wait);
 }
-- 
GitLab


From 7091fcc75ff655435402609cbccf74ce36758730 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 5 Nov 2021 13:45:12 -0700
Subject: [PATCH 1439/4878] zram: off by one in read_block_state()

[ Upstream commit a88e03cf3d190cf46bc4063a9b7efe87590de5f4 ]

snprintf() returns the number of bytes it would have printed if there
were space.  But it does not count the NUL terminator.  So that means
that if "count == copied" then this has already overflowed by one
character.

This bug likely isn't super harmful in real life.

Link: https://lkml.kernel.org/r/20210916130404.GA25094@kili
Fixes: c0265342bff4 ("zram: introduce zram memory tracking")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/zram/zram_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 7dce17fd59baa..0636df6b67db6 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -907,7 +907,7 @@ static ssize_t read_block_state(struct file *file, char __user *buf,
 			zram_test_flag(zram, index, ZRAM_HUGE) ? 'h' : '.',
 			zram_test_flag(zram, index, ZRAM_IDLE) ? 'i' : '.');
 
-		if (count < copied) {
+		if (count <= copied) {
 			zram_slot_unlock(zram, index);
 			break;
 		}
-- 
GitLab


From b833274ae6d97294db0fcb55751c6f5b9af151df Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 5 Nov 2021 22:37:33 -0700
Subject: [PATCH 1440/4878] perf bpf: Add missing free to
 bpf_event__print_bpf_prog_info()

[ Upstream commit 88c42f4d6cb249eb68524282f8d4cc32f9059984 ]

If btf__new() is called then there needs to be a corresponding btf__free().

Fixes: f8dfeae009effc0b ("perf bpf: Show more BPF program info in print_bpf_prog_info()")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211106053733.3580931-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/bpf-event.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index 3742511a08d15..c8101575dbf45 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -557,7 +557,7 @@ void bpf_event__print_bpf_prog_info(struct bpf_prog_info *info,
 		synthesize_bpf_prog_name(name, KSYM_NAME_LEN, info, btf, 0);
 		fprintf(fp, "# bpf_prog_info %u: %s addr 0x%llx size %u\n",
 			info->id, name, prog_addrs[0], prog_lens[0]);
-		return;
+		goto out;
 	}
 
 	fprintf(fp, "# bpf_prog_info %u:\n", info->id);
@@ -567,4 +567,6 @@ void bpf_event__print_bpf_prog_info(struct bpf_prog_info *info,
 		fprintf(fp, "# \tsub_prog %u: %s addr 0x%llx size %u\n",
 			i, name, prog_addrs[i], prog_lens[i]);
 	}
+out:
+	btf__free(btf);
 }
-- 
GitLab


From 9f0e683e1bd4b59c7866c564dd8dce700d7d5365 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 5 Nov 2021 14:42:14 -0700
Subject: [PATCH 1441/4878] llc: fix out-of-bound array index in
 llc_sk_dev_hash()

[ Upstream commit 8ac9dfd58b138f7e82098a4e0a0d46858b12215b ]

Both ifindex and LLC_SK_DEV_HASH_ENTRIES are signed.

This means that (ifindex % LLC_SK_DEV_HASH_ENTRIES) is negative
if @ifindex is negative.

We could simply make LLC_SK_DEV_HASH_ENTRIES unsigned.

In this patch I chose to use hash_32() to get more entropy
from @ifindex, like llc_sk_laddr_hashfn().

UBSAN: array-index-out-of-bounds in ./include/net/llc.h:75:26
index -43 is out of range for type 'hlist_head [64]'
CPU: 1 PID: 20999 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:291
 llc_sk_dev_hash include/net/llc.h:75 [inline]
 llc_sap_add_socket+0x49c/0x520 net/llc/llc_conn.c:697
 llc_ui_bind+0x680/0xd70 net/llc/af_llc.c:404
 __sys_bind+0x1e9/0x250 net/socket.c:1693
 __do_sys_bind net/socket.c:1704 [inline]
 __se_sys_bind net/socket.c:1702 [inline]
 __x64_sys_bind+0x6f/0xb0 net/socket.c:1702
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa503407ae9

Fixes: 6d2e3ea28446 ("llc: use a device based hash table to speed up multicast delivery")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/llc.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/net/llc.h b/include/net/llc.h
index df282d9b40170..9c10b121b49b0 100644
--- a/include/net/llc.h
+++ b/include/net/llc.h
@@ -72,7 +72,9 @@ struct llc_sap {
 static inline
 struct hlist_head *llc_sk_dev_hash(struct llc_sap *sap, int ifindex)
 {
-	return &sap->sk_dev_hash[ifindex % LLC_SK_DEV_HASH_ENTRIES];
+	u32 bucket = hash_32(ifindex, LLC_SK_DEV_HASH_BITS);
+
+	return &sap->sk_dev_hash[bucket];
 }
 
 static inline
-- 
GitLab


From 727c812433b6087ddc48e519a614e4fe23c9c5c6 Mon Sep 17 00:00:00 2001
From: Chengfeng Ye <cyeaa@connect.ust.hk>
Date: Fri, 5 Nov 2021 06:36:36 -0700
Subject: [PATCH 1442/4878] nfc: pn533: Fix double free when
 pn533_fill_fragment_skbs() fails

[ Upstream commit 9fec40f850658e00a14a7dd9e06f7fbc7e59cc4a ]

skb is already freed by dev_kfree_skb in pn533_fill_fragment_skbs,
but follow error handler branch when pn533_fill_fragment_skbs()
fails, skb is freed again, results in double free issue. Fix this
by not free skb in error path of pn533_fill_fragment_skbs.

Fixes: 963a82e07d4e ("NFC: pn533: Split large Tx frames in chunks")
Fixes: 93ad42020c2d ("NFC: pn533: Target mode Tx fragmentation support")
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/pn533/pn533.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index 18e3435ab8f33..d2c0116157759 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -2258,7 +2258,7 @@ static int pn533_fill_fragment_skbs(struct pn533 *dev, struct sk_buff *skb)
 		frag = pn533_alloc_skb(dev, frag_size);
 		if (!frag) {
 			skb_queue_purge(&dev->fragment_skb);
-			break;
+			return -ENOMEM;
 		}
 
 		if (!dev->tgt_mode) {
@@ -2329,7 +2329,7 @@ static int pn533_transceive(struct nfc_dev *nfc_dev,
 		/* jumbo frame ? */
 		if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
 			rc = pn533_fill_fragment_skbs(dev, skb);
-			if (rc <= 0)
+			if (rc < 0)
 				goto error;
 
 			skb = skb_dequeue(&dev->fragment_skb);
@@ -2401,7 +2401,7 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 	/* let's split in multiple chunks if size's too big */
 	if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
 		rc = pn533_fill_fragment_skbs(dev, skb);
-		if (rc <= 0)
+		if (rc < 0)
 			goto error;
 
 		/* get the first skb */
-- 
GitLab


From 0fe81d7a202d79fc2d03556ae284445733cb0946 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 5 Nov 2021 08:54:03 +0100
Subject: [PATCH 1443/4878] arm64: pgtable: make
 __pte_to_phys/__phys_to_pte_val inline functions

[ Upstream commit c7c386fbc20262c1d911c615c65db6a58667d92c ]

gcc warns about undefined behavior the vmalloc code when building
with CONFIG_ARM64_PA_BITS_52, when the 'idx++' in the argument to
__phys_to_pte_val() is evaluated twice:

mm/vmalloc.c: In function 'vmap_pfn_apply':
mm/vmalloc.c:2800:58: error: operation on 'data->idx' may be undefined [-Werror=sequence-point]
 2800 |         *pte = pte_mkspecial(pfn_pte(data->pfns[data->idx++], data->prot));
      |                                                 ~~~~~~~~~^~
arch/arm64/include/asm/pgtable-types.h:25:37: note: in definition of macro '__pte'
   25 | #define __pte(x)        ((pte_t) { (x) } )
      |                                     ^
arch/arm64/include/asm/pgtable.h:80:15: note: in expansion of macro '__phys_to_pte_val'
   80 |         __pte(__phys_to_pte_val((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
      |               ^~~~~~~~~~~~~~~~~
mm/vmalloc.c:2800:30: note: in expansion of macro 'pfn_pte'
 2800 |         *pte = pte_mkspecial(pfn_pte(data->pfns[data->idx++], data->prot));
      |                              ^~~~~~~

I have no idea why this never showed up earlier, but the safest
workaround appears to be changing those macros into inline functions
so the arguments get evaluated only once.

Cc: Matthew Wilcox <willy@infradead.org>
Fixes: 75387b92635e ("arm64: handle 52-bit physical addresses in page table entries")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211105075414.2553155-1-arnd@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/include/asm/pgtable.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 10ffbc96ac31f..f3a70dc7c5942 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -69,9 +69,15 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
  * page table entry, taking care of 52-bit addresses.
  */
 #ifdef CONFIG_ARM64_PA_BITS_52
-#define __pte_to_phys(pte)	\
-	((pte_val(pte) & PTE_ADDR_LOW) | ((pte_val(pte) & PTE_ADDR_HIGH) << 36))
-#define __phys_to_pte_val(phys)	(((phys) | ((phys) >> 36)) & PTE_ADDR_MASK)
+static inline phys_addr_t __pte_to_phys(pte_t pte)
+{
+	return (pte_val(pte) & PTE_ADDR_LOW) |
+		((pte_val(pte) & PTE_ADDR_HIGH) << 36);
+}
+static inline pteval_t __phys_to_pte_val(phys_addr_t phys)
+{
+	return (phys | (phys >> 36)) & PTE_ADDR_MASK;
+}
 #else
 #define __pte_to_phys(pte)	(pte_val(pte) & PTE_ADDR_MASK)
 #define __phys_to_pte_val(phys)	(phys)
-- 
GitLab


From 8b5c98a67c1b6a569957af64bb65ce39c5431d80 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Wed, 3 Nov 2021 13:47:33 -0700
Subject: [PATCH 1444/4878] bpf, sockmap: Remove unhash handler for BPF sockmap
 usage

[ Upstream commit b8b8315e39ffaca82e79d86dde26e9144addf66b ]

We do not need to handle unhash from BPF side we can simply wait for the
close to happen. The original concern was a socket could transition from
ESTABLISHED state to a new state while the BPF hook was still attached.
But, we convinced ourself this is no longer possible and we also improved
BPF sockmap to handle listen sockets so this is no longer a problem.

More importantly though there are cases where unhash is called when data is
in the receive queue. The BPF unhash logic will flush this data which is
wrong. To be correct it should keep the data in the receive queue and allow
a receiving application to continue reading the data. This may happen when
tcp_abort() is received for example. Instead of complicating the logic in
unhash simply moving all this to tcp_close() hook solves this.

Fixes: 51199405f9672 ("bpf: skb_verdict, support SK_PASS on RX BPF path")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Jussi Maki <joamaki@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20211103204736.248403-3-john.fastabend@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp_bpf.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 9194070c67250..6b745ce4108c8 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -573,7 +573,6 @@ static void tcp_bpf_rebuild_protos(struct proto prot[TCP_BPF_NUM_CFGS],
 				   struct proto *base)
 {
 	prot[TCP_BPF_BASE]			= *base;
-	prot[TCP_BPF_BASE].unhash		= sock_map_unhash;
 	prot[TCP_BPF_BASE].close		= sock_map_close;
 	prot[TCP_BPF_BASE].recvmsg		= tcp_bpf_recvmsg;
 	prot[TCP_BPF_BASE].stream_memory_read	= tcp_bpf_stream_read;
-- 
GitLab


From c842a4c4ae7fd604effbbb36bde7e1c251cb5c47 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Wed, 3 Nov 2021 13:47:35 -0700
Subject: [PATCH 1445/4878] bpf: sockmap, strparser, and tls are reusing
 qdisc_skb_cb and colliding

[ Upstream commit e0dc3b93bd7bcff8c3813d1df43e0908499c7cf0 ]

Strparser is reusing the qdisc_skb_cb struct to stash the skb message handling
progress, e.g. offset and length of the skb. First this is poorly named and
inherits a struct from qdisc that doesn't reflect the actual usage of cb[] at
this layer.

But, more importantly strparser is using the following to access its metadata.

  (struct _strp_msg *)((void *)skb->cb + offsetof(struct qdisc_skb_cb, data))

Where _strp_msg is defined as:

  struct _strp_msg {
        struct strp_msg            strp;                 /*     0     8 */
        int                        accum_len;            /*     8     4 */

        /* size: 12, cachelines: 1, members: 2 */
        /* last cacheline: 12 bytes */
  };

So we use 12 bytes of ->data[] in struct. However in BPF code running parser
and verdict the user has read capabilities into the data[] array as well. Its
not too problematic, but we should not be exposing internal state to BPF
program. If its really needed then we can use the probe_read() APIs which allow
reading kernel memory. And I don't believe cb[] layer poses any API breakage by
moving this around because programs can't depend on cb[] across layers.

In order to fix another issue with a ctx rewrite we need to stash a temp
variable somewhere. To make this work cleanly this patch builds a cb struct
for sk_skb types called sk_skb_cb struct. Then we can use this consistently
in the strparser, sockmap space. Additionally we can start allowing ->cb[]
write access after this.

Fixes: 604326b41a6fb ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Jussi Maki <joamaki@gmail.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20211103204736.248403-5-john.fastabend@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/strparser.h   | 16 +++++++++++++++-
 net/core/filter.c         | 21 +++++++++++++++++++++
 net/strparser/strparser.c | 10 +---------
 3 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/include/net/strparser.h b/include/net/strparser.h
index 1d20b98493a10..bec1439bd3be6 100644
--- a/include/net/strparser.h
+++ b/include/net/strparser.h
@@ -54,10 +54,24 @@ struct strp_msg {
 	int offset;
 };
 
+struct _strp_msg {
+	/* Internal cb structure. struct strp_msg must be first for passing
+	 * to upper layer.
+	 */
+	struct strp_msg strp;
+	int accum_len;
+};
+
+struct sk_skb_cb {
+#define SK_SKB_CB_PRIV_LEN 20
+	unsigned char data[SK_SKB_CB_PRIV_LEN];
+	struct _strp_msg strp;
+};
+
 static inline struct strp_msg *strp_msg(struct sk_buff *skb)
 {
 	return (struct strp_msg *)((void *)skb->cb +
-		offsetof(struct qdisc_skb_cb, data));
+		offsetof(struct sk_skb_cb, strp));
 }
 
 /* Structure for an attached lower socket */
diff --git a/net/core/filter.c b/net/core/filter.c
index 7ea752af7894d..abd58dce49bbc 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -9493,6 +9493,27 @@ static u32 sk_skb_convert_ctx_access(enum bpf_access_type type,
 		*insn++ = BPF_LDX_MEM(BPF_SIZEOF(void *), si->dst_reg,
 				      si->src_reg, off);
 		break;
+	case offsetof(struct __sk_buff, cb[0]) ...
+	     offsetofend(struct __sk_buff, cb[4]) - 1:
+		BUILD_BUG_ON(sizeof_field(struct sk_skb_cb, data) < 20);
+		BUILD_BUG_ON((offsetof(struct sk_buff, cb) +
+			      offsetof(struct sk_skb_cb, data)) %
+			     sizeof(__u64));
+
+		prog->cb_access = 1;
+		off  = si->off;
+		off -= offsetof(struct __sk_buff, cb[0]);
+		off += offsetof(struct sk_buff, cb);
+		off += offsetof(struct sk_skb_cb, data);
+		if (type == BPF_WRITE)
+			*insn++ = BPF_STX_MEM(BPF_SIZE(si->code), si->dst_reg,
+					      si->src_reg, off);
+		else
+			*insn++ = BPF_LDX_MEM(BPF_SIZE(si->code), si->dst_reg,
+					      si->src_reg, off);
+		break;
+
+
 	default:
 		return bpf_convert_ctx_access(type, si, insn_buf, prog,
 					      target_size);
diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index b3815c1e8f2ea..cd9954c4ad808 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -27,18 +27,10 @@
 
 static struct workqueue_struct *strp_wq;
 
-struct _strp_msg {
-	/* Internal cb structure. struct strp_msg must be first for passing
-	 * to upper layer.
-	 */
-	struct strp_msg strp;
-	int accum_len;
-};
-
 static inline struct _strp_msg *_strp_msg(struct sk_buff *skb)
 {
 	return (struct _strp_msg *)((void *)skb->cb +
-		offsetof(struct qdisc_skb_cb, data));
+		offsetof(struct sk_skb_cb, strp));
 }
 
 /* Lower lock held */
-- 
GitLab


From 4af0cd17e72461ec03d59b6a4d7cc769bf41b546 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 9 Nov 2021 14:47:36 +0300
Subject: [PATCH 1446/4878] gve: Fix off by one in gve_tx_timeout()

[ Upstream commit 1c360cc1cc883fbdf0a258b4df376571fbeac5ee ]

The priv->ntfy_blocks[] has "priv->num_ntfy_blks" elements so this >
needs to be >= to prevent an off by one bug.  The priv->ntfy_blocks[]
array is allocated in gve_alloc_notify_blocks().

Fixes: 87a7f321bb6a ("gve: Recover from queue stall due to missed IRQ")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/google/gve/gve_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index 3e96b2a11c5bf..6cb75bb1ed052 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -959,7 +959,7 @@ static void gve_tx_timeout(struct net_device *dev, unsigned int txqueue)
 		goto reset;
 
 	ntfy_idx = gve_tx_idx_to_ntfy(priv, txqueue);
-	if (ntfy_idx > priv->num_ntfy_blks)
+	if (ntfy_idx >= priv->num_ntfy_blks)
 		goto reset;
 
 	block = &priv->ntfy_blocks[ntfy_idx];
-- 
GitLab


From b5703462a42805cb1a9611a7e0b421343e67ffda Mon Sep 17 00:00:00 2001
From: Muchun Song <songmuchun@bytedance.com>
Date: Mon, 8 Nov 2021 18:35:19 -0800
Subject: [PATCH 1447/4878] seq_file: fix passing wrong private data

[ Upstream commit 10a6de19cad6efb9b49883513afb810dc265fca2 ]

DEFINE_PROC_SHOW_ATTRIBUTE() is supposed to be used to define a series
of functions and variables to register proc file easily. And the users
can use proc_create_data() to pass their own private data and get it
via seq->private in the callback. Unfortunately, the proc file system
use PDE_DATA() to get private data instead of inode->i_private. So fix
it. Fortunately, there only one user of it which does not pass any
private data, so this bug does not break any in-tree codes.

Link: https://lkml.kernel.org/r/20211029032638.84884-1-songmuchun@bytedance.com
Fixes: 97a32539b956 ("proc: convert everything to "struct proc_ops"")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Florent Revest <revest@chromium.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/seq_file.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index b83b3ae3c877f..662a8cfa1bcd3 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -182,7 +182,7 @@ static const struct file_operations __name ## _fops = {			\
 #define DEFINE_PROC_SHOW_ATTRIBUTE(__name)				\
 static int __name ## _open(struct inode *inode, struct file *file)	\
 {									\
-	return single_open(file, __name ## _show, inode->i_private);	\
+	return single_open(file, __name ## _show, PDE_DATA(inode));	\
 }									\
 									\
 static const struct proc_ops __name ## _proc_ops = {			\
-- 
GitLab


From 79aa8706b45c110de1188bcca0212dc362b5d353 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 8 Nov 2021 10:08:15 -0800
Subject: [PATCH 1448/4878] net/sched: sch_taprio: fix undefined behavior in
 ktime_mono_to_any

[ Upstream commit 6dc25401cba4d428328eade8ceae717633fdd702 ]

1) if q->tk_offset == TK_OFFS_MAX, then get_tcp_tstamp() calls
   ktime_mono_to_any() with out-of-bound value.

2) if q->tk_offset is changed in taprio_parse_clockid(),
   taprio_get_time() might also call ktime_mono_to_any()
   with out-of-bound value as sysbot found:

UBSAN: array-index-out-of-bounds in kernel/time/timekeeping.c:908:27
index 3 is out of range for type 'ktime_t *[3]'
CPU: 1 PID: 25668 Comm: kworker/u4:0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x5a lib/ubsan.c:151
 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:291
 ktime_mono_to_any+0x1d4/0x1e0 kernel/time/timekeeping.c:908
 get_tcp_tstamp net/sched/sch_taprio.c:322 [inline]
 get_packet_txtime net/sched/sch_taprio.c:353 [inline]
 taprio_enqueue_one+0x5b0/0x1460 net/sched/sch_taprio.c:420
 taprio_enqueue+0x3b1/0x730 net/sched/sch_taprio.c:485
 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3785
 __dev_xmit_skb net/core/dev.c:3869 [inline]
 __dev_queue_xmit+0x1f6e/0x3630 net/core/dev.c:4194
 batadv_send_skb_packet+0x4a9/0x5f0 net/batman-adv/send.c:108
 batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:393 [inline]
 batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:421 [inline]
 batadv_iv_send_outstanding_bat_ogm_packet+0x6d7/0x8e0 net/batman-adv/bat_iv_ogm.c:1701
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Fixes: 7ede7b03484b ("taprio: make clock reference conversions easier")
Fixes: 54002066100b ("taprio: Adjust timestamps for TCP packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vedang Patel <vedang.patel@intel.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Link: https://lore.kernel.org/r/20211108180815.1822479-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_taprio.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index 93899559ba6d2..806babdd838d2 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -94,18 +94,22 @@ static ktime_t sched_base_time(const struct sched_gate_list *sched)
 	return ns_to_ktime(sched->base_time);
 }
 
-static ktime_t taprio_get_time(struct taprio_sched *q)
+static ktime_t taprio_mono_to_any(const struct taprio_sched *q, ktime_t mono)
 {
-	ktime_t mono = ktime_get();
+	/* This pairs with WRITE_ONCE() in taprio_parse_clockid() */
+	enum tk_offsets tk_offset = READ_ONCE(q->tk_offset);
 
-	switch (q->tk_offset) {
+	switch (tk_offset) {
 	case TK_OFFS_MAX:
 		return mono;
 	default:
-		return ktime_mono_to_any(mono, q->tk_offset);
+		return ktime_mono_to_any(mono, tk_offset);
 	}
+}
 
-	return KTIME_MAX;
+static ktime_t taprio_get_time(const struct taprio_sched *q)
+{
+	return taprio_mono_to_any(q, ktime_get());
 }
 
 static void taprio_free_sched_cb(struct rcu_head *head)
@@ -321,7 +325,7 @@ static ktime_t get_tcp_tstamp(struct taprio_sched *q, struct sk_buff *skb)
 		return 0;
 	}
 
-	return ktime_mono_to_any(skb->skb_mstamp_ns, q->tk_offset);
+	return taprio_mono_to_any(q, skb->skb_mstamp_ns);
 }
 
 /* There are a few scenarios where we will have to modify the txtime from
@@ -1341,6 +1345,7 @@ static int taprio_parse_clockid(struct Qdisc *sch, struct nlattr **tb,
 		}
 	} else if (tb[TCA_TAPRIO_ATTR_SCHED_CLOCKID]) {
 		int clockid = nla_get_s32(tb[TCA_TAPRIO_ATTR_SCHED_CLOCKID]);
+		enum tk_offsets tk_offset;
 
 		/* We only support static clockids and we don't allow
 		 * for it to be modified after the first init.
@@ -1355,22 +1360,24 @@ static int taprio_parse_clockid(struct Qdisc *sch, struct nlattr **tb,
 
 		switch (clockid) {
 		case CLOCK_REALTIME:
-			q->tk_offset = TK_OFFS_REAL;
+			tk_offset = TK_OFFS_REAL;
 			break;
 		case CLOCK_MONOTONIC:
-			q->tk_offset = TK_OFFS_MAX;
+			tk_offset = TK_OFFS_MAX;
 			break;
 		case CLOCK_BOOTTIME:
-			q->tk_offset = TK_OFFS_BOOT;
+			tk_offset = TK_OFFS_BOOT;
 			break;
 		case CLOCK_TAI:
-			q->tk_offset = TK_OFFS_TAI;
+			tk_offset = TK_OFFS_TAI;
 			break;
 		default:
 			NL_SET_ERR_MSG(extack, "Invalid 'clockid'");
 			err = -EINVAL;
 			goto out;
 		}
+		/* This pairs with READ_ONCE() in taprio_mono_to_any */
+		WRITE_ONCE(q->tk_offset, tk_offset);
 
 		q->clockid = clockid;
 	} else {
-- 
GitLab


From ee11f16fee9528dd3cc0710847ada5403b02705d Mon Sep 17 00:00:00 2001
From: Yufeng Mo <moyufeng@huawei.com>
Date: Wed, 10 Nov 2021 21:42:53 +0800
Subject: [PATCH 1449/4878] net: hns3: fix kernel crash when unload VF while it
 is being reset

[ Upstream commit e140c7983e3054be0652bf914f4454f16c5520b0 ]

When fully configure VLANs for a VF, then unload the VF while
triggering a reset to PF, will cause a kernel crash because the
irq is already uninit.

[ 293.177579] ------------[ cut here ]------------
[ 293.183502] kernel BUG at drivers/pci/msi.c:352!
[ 293.189547] Internal error: Oops - BUG: 0 [#1] SMP
......
[ 293.390124] Workqueue: hclgevf hclgevf_service_task [hclgevf]
[ 293.402627] pstate: 80c00009 (Nzcv daif +PAN +UAO)
[ 293.414324] pc : free_msi_irqs+0x19c/0x1b8
[ 293.425429] lr : free_msi_irqs+0x18c/0x1b8
[ 293.436545] sp : ffff00002716fbb0
[ 293.446950] x29: ffff00002716fbb0 x28: 0000000000000000
[ 293.459519] x27: 0000000000000000 x26: ffff45b91ea16b00
[ 293.472183] x25: 0000000000000000 x24: ffffa587b08f4700
[ 293.484717] x23: ffffc591ac30e000 x22: ffffa587b08f8428
[ 293.497190] x21: ffffc591ac30e300 x20: 0000000000000000
[ 293.509594] x19: ffffa58a062a8300 x18: 0000000000000000
[ 293.521949] x17: 0000000000000000 x16: ffff45b91dcc3f48
[ 293.534013] x15: 0000000000000000 x14: 0000000000000000
[ 293.545883] x13: 0000000000000040 x12: 0000000000000228
[ 293.557508] x11: 0000000000000020 x10: 0000000000000040
[ 293.568889] x9 : ffff45b91ea1e190 x8 : ffffc591802d0000
[ 293.580123] x7 : ffffc591802d0148 x6 : 0000000000000120
[ 293.591190] x5 : ffffc591802d0000 x4 : 0000000000000000
[ 293.602015] x3 : 0000000000000000 x2 : 0000000000000000
[ 293.612624] x1 : 00000000000004a4 x0 : ffffa58a1e0c6b80
[ 293.623028] Call trace:
[ 293.630340] free_msi_irqs+0x19c/0x1b8
[ 293.638849] pci_disable_msix+0x118/0x140
[ 293.647452] pci_free_irq_vectors+0x20/0x38
[ 293.656081] hclgevf_uninit_msi+0x44/0x58 [hclgevf]
[ 293.665309] hclgevf_reset_rebuild+0x1ac/0x2e0 [hclgevf]
[ 293.674866] hclgevf_reset+0x358/0x400 [hclgevf]
[ 293.683545] hclgevf_reset_service_task+0xd0/0x1b0 [hclgevf]
[ 293.693325] hclgevf_service_task+0x4c/0x2e8 [hclgevf]
[ 293.702307] process_one_work+0x1b0/0x448
[ 293.710034] worker_thread+0x54/0x468
[ 293.717331] kthread+0x134/0x138
[ 293.724114] ret_from_fork+0x10/0x18
[ 293.731324] Code: f940b000 b4ffff00 a903e7b8 f90017b6 (d4210000)

This patch fixes the problem by waiting for the VF reset done
while unloading the VF.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 5 +++++
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index a47f23f27a11c..e27af38f6b161 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2887,7 +2887,10 @@ static void hclgevf_uninit_client_instance(struct hnae3_client *client,
 
 	/* un-init roce, if it exists */
 	if (hdev->roce_client) {
+		while (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
+			msleep(HCLGEVF_WAIT_RESET_DONE);
 		clear_bit(HCLGEVF_STATE_ROCE_REGISTERED, &hdev->state);
+
 		hdev->roce_client->ops->uninit_instance(&hdev->roce, 0);
 		hdev->roce_client = NULL;
 		hdev->roce.client = NULL;
@@ -2896,6 +2899,8 @@ static void hclgevf_uninit_client_instance(struct hnae3_client *client,
 	/* un-init nic/unic, if this was not called by roce client */
 	if (client->ops->uninit_instance && hdev->nic_client &&
 	    client->type != HNAE3_CLIENT_ROCE) {
+		while (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
+			msleep(HCLGEVF_WAIT_RESET_DONE);
 		clear_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state);
 
 		client->ops->uninit_instance(&hdev->nic, 0);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index 526a62f970466..c9b0fa5e8589d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -106,6 +106,8 @@
 #define HCLGEVF_VF_RST_ING		0x07008
 #define HCLGEVF_VF_RST_ING_BIT		BIT(16)
 
+#define HCLGEVF_WAIT_RESET_DONE		100
+
 #define HCLGEVF_RSS_IND_TBL_SIZE		512
 #define HCLGEVF_RSS_SET_BITMAP_MSK	0xffff
 #define HCLGEVF_RSS_KEY_SIZE		40
-- 
GitLab


From b30459c0ca0dce0db6168bcbfb640763734faacf Mon Sep 17 00:00:00 2001
From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Wed, 10 Nov 2021 21:42:56 +0800
Subject: [PATCH 1450/4878] net: hns3: allow configure ETS bandwidth of all TCs

[ Upstream commit 688db0c7a4a69ddc8b8143a1cac01eb20082a3aa ]

Currently, driver only allow configuring ETS bandwidth of TCs according
to the max TC number queried from firmware. However, the hardware actually
supports 8 TCs and users may need to configure ETS bandwidth of all TCs,
so remove the restriction.

Fixes: 330baff5423b ("net: hns3: add ETS TC weight setting in SSU module")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 2 +-
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c  | 9 +--------
 2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 8e6085753b9f2..5bab885744fc8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -126,7 +126,7 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
 	if (ret)
 		return ret;
 
-	for (i = 0; i < hdev->tc_max; i++) {
+	for (i = 0; i < HNAE3_MAX_TC; i++) {
 		switch (ets->tc_tsa[i]) {
 		case IEEE_8021QAZ_TSA_STRICT:
 			if (hdev->tm_info.tc_info[i].tc_sch_mode !=
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 71aa6d16fc19e..9168e39b63641 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -1039,7 +1039,6 @@ static int hclge_tm_pri_tc_base_dwrr_cfg(struct hclge_dev *hdev)
 
 static int hclge_tm_ets_tc_dwrr_cfg(struct hclge_dev *hdev)
 {
-#define DEFAULT_TC_WEIGHT	1
 #define DEFAULT_TC_OFFSET	14
 
 	struct hclge_ets_tc_weight_cmd *ets_weight;
@@ -1052,13 +1051,7 @@ static int hclge_tm_ets_tc_dwrr_cfg(struct hclge_dev *hdev)
 	for (i = 0; i < HNAE3_MAX_TC; i++) {
 		struct hclge_pg_info *pg_info;
 
-		ets_weight->tc_weight[i] = DEFAULT_TC_WEIGHT;
-
-		if (!(hdev->hw_tc_map & BIT(i)))
-			continue;
-
-		pg_info =
-			&hdev->tm_info.pg_info[hdev->tm_info.tc_info[i].pgid];
+		pg_info = &hdev->tm_info.pg_info[hdev->tm_info.tc_info[i].pgid];
 		ets_weight->tc_weight[i] = pg_info->tc_dwrr[i];
 	}
 
-- 
GitLab


From ad3d219e843df0abcb5ee390b9cf416216db13e2 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 8 Nov 2021 22:28:54 +0200
Subject: [PATCH 1451/4878] net: stmmac: allow a tc-taprio base-time of zero

[ Upstream commit f64ab8e4f368f48afb08ae91928e103d17b235e9 ]

Commit fe28c53ed71d ("net: stmmac: fix taprio configuration when
base_time is in the past") allowed some base time values in the past,
but apparently not all, the base-time value of 0 (Jan 1st 1970) is still
explicitly denied by the driver.

Remove the bogus check.

Fixes: b60189e0392f ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index 6399803061158..43165c662740d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -679,8 +679,6 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
 		goto disable;
 	if (qopt->num_entries >= dep)
 		return -EINVAL;
-	if (!qopt->base_time)
-		return -ERANGE;
 	if (!qopt->cycle_time)
 		return -ERANGE;
 
-- 
GitLab


From 7e03b797bee0b9da2d329c3edbc6937062f01215 Mon Sep 17 00:00:00 2001
From: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Date: Tue, 9 Nov 2021 00:15:02 +0000
Subject: [PATCH 1452/4878] vsock: prevent unnecessary refcnt inc for
 nonblocking connect

[ Upstream commit c7cd82b90599fa10915f41e3dd9098a77d0aa7b6 ]

Currently vosck_connect() increments sock refcount for nonblocking
socket each time it's called, which can lead to memory leak if
it's called multiple times because connect timeout function decrements
sock refcount only once.

Fixes it by making vsock_connect() return -EALREADY immediately when
sock state is already SS_CONNECTING.

Fixes: d021c344051a ("VSOCK: Introduce VM Sockets")
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/vmw_vsock/af_vsock.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 326250513570e..7fe36dbcbe187 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1279,6 +1279,8 @@ static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr,
 		 * non-blocking call.
 		 */
 		err = -EALREADY;
+		if (flags & O_NONBLOCK)
+			goto out;
 		break;
 	default:
 		if ((sk->sk_state == TCP_LISTEN) ||
-- 
GitLab


From 93bc3ef607589354d411302c57ff08e666ceefe9 Mon Sep 17 00:00:00 2001
From: Dust Li <dust.li@linux.alibaba.com>
Date: Wed, 10 Nov 2021 15:02:34 +0800
Subject: [PATCH 1453/4878] net/smc: fix sk_refcnt underflow on linkdown and
 fallback

[ Upstream commit e5d5aadcf3cd59949316df49c27cb21788d7efe4 ]

We got the following WARNING when running ab/nginx
test with RDMA link flapping (up-down-up).
The reason is when smc_sock fallback and at linkdown
happens simultaneously, we may got the following situation:

__smc_lgr_terminate()
 --> smc_conn_kill()
    --> smc_close_active_abort()
           smc_sock->sk_state = SMC_CLOSED
           sock_put(smc_sock)

smc_sock was set to SMC_CLOSED and sock_put() been called
when terminate the link group. But later application call
close() on the socket, then we got:

__smc_release():
    if (smc_sock->fallback)
        smc_sock->sk_state = SMC_CLOSED
        sock_put(smc_sock)

Again we set the smc_sock to CLOSED through it's already
in CLOSED state, and double put the refcnt, so the following
warning happens:

refcount_t: underflow; use-after-free.
WARNING: CPU: 5 PID: 860 at lib/refcount.c:28 refcount_warn_saturate+0x8d/0xf0
Modules linked in:
CPU: 5 PID: 860 Comm: nginx Not tainted 5.10.46+ #403
Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 8c24b4c 04/01/2014
RIP: 0010:refcount_warn_saturate+0x8d/0xf0
Code: 05 5c 1e b5 01 01 e8 52 25 bc ff 0f 0b c3 80 3d 4f 1e b5 01 00 75 ad 48

RSP: 0018:ffffc90000527e50 EFLAGS: 00010286
RAX: 0000000000000026 RBX: ffff8881300df2c0 RCX: 0000000000000027
RDX: 0000000000000000 RSI: ffff88813bd58040 RDI: ffff88813bd58048
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000001
R10: ffff8881300df2c0 R11: ffffc90000527c78 R12: ffff8881300df340
R13: ffff8881300df930 R14: ffff88810b3dad80 R15: ffff8881300df4f8
FS:  00007f739de8fb80(0000) GS:ffff88813bd40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000a01b008 CR3: 0000000111b64003 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smc_release+0x353/0x3f0
 __sock_release+0x3d/0xb0
 sock_close+0x11/0x20
 __fput+0x93/0x230
 task_work_run+0x65/0xa0
 exit_to_user_mode_prepare+0xf9/0x100
 syscall_exit_to_user_mode+0x27/0x190
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

This patch adds check in __smc_release() to make
sure we won't do an extra sock_put() and set the
socket to CLOSED when its already in CLOSED state.

Fixes: 51f1de79ad8e (net/smc: replace sock_put worker by socket refcounting)
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index cc2af94e74507..cfb5b9be0569d 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -146,14 +146,18 @@ static int __smc_release(struct smc_sock *smc)
 		sock_set_flag(sk, SOCK_DEAD);
 		sk->sk_shutdown |= SHUTDOWN_MASK;
 	} else {
-		if (sk->sk_state != SMC_LISTEN && sk->sk_state != SMC_INIT)
-			sock_put(sk); /* passive closing */
-		if (sk->sk_state == SMC_LISTEN) {
-			/* wake up clcsock accept */
-			rc = kernel_sock_shutdown(smc->clcsock, SHUT_RDWR);
+		if (sk->sk_state != SMC_CLOSED) {
+			if (sk->sk_state != SMC_LISTEN &&
+			    sk->sk_state != SMC_INIT)
+				sock_put(sk); /* passive closing */
+			if (sk->sk_state == SMC_LISTEN) {
+				/* wake up clcsock accept */
+				rc = kernel_sock_shutdown(smc->clcsock,
+							  SHUT_RDWR);
+			}
+			sk->sk_state = SMC_CLOSED;
+			sk->sk_state_change(sk);
 		}
-		sk->sk_state = SMC_CLOSED;
-		sk->sk_state_change(sk);
 		smc_restore_fallback_changes(smc);
 	}
 
-- 
GitLab


From 8b215edb7a38c4fdf78ef94a0704694c59e6f8d4 Mon Sep 17 00:00:00 2001
From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Date: Thu, 11 Nov 2021 15:55:16 +0530
Subject: [PATCH 1454/4878] cxgb4: fix eeprom len when diagnostics not
 implemented

[ Upstream commit 4ca110bf8d9b31a60f8f8ff6706ea147d38ad97c ]

Ensure diagnostics monitoring support is implemented for the SFF 8472
compliant port module and set the correct length for ethtool port
module eeprom read.

Fixes: f56ec6766dcf ("cxgb4: Add support for ethtool i2c dump")
Signed-off-by: Manoj Malviya <manojmalviya@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c | 7 +++++--
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.h         | 2 ++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
index 83ed10ac86606..7080cb6c83e4a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
@@ -2011,12 +2011,15 @@ static int cxgb4_get_module_info(struct net_device *dev,
 		if (ret)
 			return ret;
 
-		if (!sff8472_comp || (sff_diag_type & 4)) {
+		if (!sff8472_comp || (sff_diag_type & SFP_DIAG_ADDRMODE)) {
 			modinfo->type = ETH_MODULE_SFF_8079;
 			modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
 		} else {
 			modinfo->type = ETH_MODULE_SFF_8472;
-			modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+			if (sff_diag_type & SFP_DIAG_IMPLEMENTED)
+				modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
+			else
+				modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN / 2;
 		}
 		break;
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
index 002fc62ea7262..63bc956d20376 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
@@ -293,6 +293,8 @@ enum {
 #define I2C_PAGE_SIZE		0x100
 #define SFP_DIAG_TYPE_ADDR	0x5c
 #define SFP_DIAG_TYPE_LEN	0x1
+#define SFP_DIAG_ADDRMODE	BIT(2)
+#define SFP_DIAG_IMPLEMENTED	BIT(6)
 #define SFF_8472_COMP_ADDR	0x5e
 #define SFF_8472_COMP_LEN	0x1
 #define SFF_REV_ADDR		0x1
-- 
GitLab


From ee79560cb768ef56d91452868d01888e97373ccb Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Thu, 11 Nov 2021 06:57:17 -0500
Subject: [PATCH 1455/4878] selftests/net: udpgso_bench_rx: fix port argument

[ Upstream commit d336509cb9d03970911878bb77f0497f64fda061 ]

The below commit added optional support for passing a bind address.
It configures the sockaddr bind arguments before parsing options and
reconfigures on options -b and -4.

This broke support for passing port (-p) on its own.

Configure sockaddr after parsing all arguments.

Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgso_bench_rx.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/net/udpgso_bench_rx.c b/tools/testing/selftests/net/udpgso_bench_rx.c
index 76a24052f4b47..6a193425c367f 100644
--- a/tools/testing/selftests/net/udpgso_bench_rx.c
+++ b/tools/testing/selftests/net/udpgso_bench_rx.c
@@ -293,19 +293,17 @@ static void usage(const char *filepath)
 
 static void parse_opts(int argc, char **argv)
 {
+	const char *bind_addr = NULL;
 	int c;
 
-	/* bind to any by default */
-	setup_sockaddr(PF_INET6, "::", &cfg_bind_addr);
 	while ((c = getopt(argc, argv, "4b:C:Gl:n:p:rR:S:tv")) != -1) {
 		switch (c) {
 		case '4':
 			cfg_family = PF_INET;
 			cfg_alen = sizeof(struct sockaddr_in);
-			setup_sockaddr(PF_INET, "0.0.0.0", &cfg_bind_addr);
 			break;
 		case 'b':
-			setup_sockaddr(cfg_family, optarg, &cfg_bind_addr);
+			bind_addr = optarg;
 			break;
 		case 'C':
 			cfg_connect_timeout_ms = strtoul(optarg, NULL, 0);
@@ -341,6 +339,11 @@ static void parse_opts(int argc, char **argv)
 		}
 	}
 
+	if (!bind_addr)
+		bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+	setup_sockaddr(cfg_family, bind_addr, &cfg_bind_addr);
+
 	if (optind != argc)
 		usage(argv[0]);
 
-- 
GitLab


From 03f2578153eb09b386ef237be4cb285f3389f8fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= <mirq-linux@rere.qmqm.pl>
Date: Thu, 4 Nov 2021 17:28:28 +0100
Subject: [PATCH 1456/4878] ARM: 9155/1: fix early early_iounmap()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 0d08e7bf0d0d1a29aff7b16ef516f7415eb1aa05 upstream.

Currently __set_fixmap() bails out with a warning when called in early boot
from early_iounmap(). Fix it, and while at it, make the comment a bit easier
to understand.

Cc: <stable@vger.kernel.org>
Fixes: b089c31c519c ("ARM: 8667/3: Fix memory attribute inconsistencies when using fixmap")
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index fa259825310c5..4df688f410728 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -391,9 +391,9 @@ void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot)
 		     FIXADDR_END);
 	BUG_ON(idx >= __end_of_fixed_addresses);
 
-	/* we only support device mappings until pgprot_kernel has been set */
+	/* We support only device mappings before pgprot_kernel is set. */
 	if (WARN_ON(pgprot_val(prot) != pgprot_val(FIXMAP_PAGE_IO) &&
-		    pgprot_val(pgprot_kernel) == 0))
+		    pgprot_val(prot) && pgprot_val(pgprot_kernel) == 0))
 		return;
 
 	if (pgprot_val(prot))
-- 
GitLab


From 241c74cc655540fd34df083832e40fb6050d70b5 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Sat, 6 Nov 2021 19:42:29 +0100
Subject: [PATCH 1457/4878] ARM: 9156/1: drop cc-option fallbacks for
 architecture selection

commit 418ace9992a7647c446ed3186df40cf165b67298 upstream.

Naresh and Antonio ran into a build failure with latest Debian
armhf compilers, with lots of output like

 tmp/ccY3nOAs.s:2215: Error: selected processor does not support `cpsid i' in ARM mode

As it turns out, $(cc-option) fails early here when the FPU is not
selected before CPU architecture is selected, as the compiler
option check runs before enabling -msoft-float, which causes
a problem when testing a target architecture level without an FPU:

cc1: error: '-mfloat-abi=hard': selected architecture lacks an FPU

Passing e.g. -march=armv6k+fp in place of -march=armv6k would avoid this
issue, but the fallback logic is already broken because all supported
compilers (gcc-5 and higher) are much more recent than these options,
and building with -march=armv5t as a fallback no longer works.

The best way forward that I see is to just remove all the checks, which
also has the nice side-effect of slightly improving the startup time for
'make'.

The -mtune=marvell-f option was apparently never supported by any mainline
compiler, and the custom Codesourcery gcc build that did support is
now too old to build kernels, so just use -mtune=xscale unconditionally
for those.

This should be safe to apply on all stable kernels, and will be required
in order to keep building them with gcc-11 and higher.

Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=996419

Reported-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Cc: Matthias Klose <doko@debian.org>
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/Makefile | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index e15f76ca2887c..0e5a8765e60b3 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -60,15 +60,15 @@ KBUILD_CFLAGS	+= $(call cc-option,-fno-ipa-sra)
 # Note that GCC does not numerically define an architecture version
 # macro, but instead defines a whole series of macros which makes
 # testing for a specific architecture or later rather impossible.
-arch-$(CONFIG_CPU_32v7M)	=-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
-arch-$(CONFIG_CPU_32v7)		=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
-arch-$(CONFIG_CPU_32v6)		=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
+arch-$(CONFIG_CPU_32v7M)	=-D__LINUX_ARM_ARCH__=7 -march=armv7-m
+arch-$(CONFIG_CPU_32v7)		=-D__LINUX_ARM_ARCH__=7 -march=armv7-a
+arch-$(CONFIG_CPU_32v6)		=-D__LINUX_ARM_ARCH__=6 -march=armv6
 # Only override the compiler option if ARMv6. The ARMv6K extensions are
 # always available in ARMv7
 ifeq ($(CONFIG_CPU_32v6),y)
-arch-$(CONFIG_CPU_32v6K)	=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
+arch-$(CONFIG_CPU_32v6K)	=-D__LINUX_ARM_ARCH__=6 -march=armv6k
 endif
-arch-$(CONFIG_CPU_32v5)		=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
+arch-$(CONFIG_CPU_32v5)		=-D__LINUX_ARM_ARCH__=5 -march=armv5te
 arch-$(CONFIG_CPU_32v4T)	=-D__LINUX_ARM_ARCH__=4 -march=armv4t
 arch-$(CONFIG_CPU_32v4)		=-D__LINUX_ARM_ARCH__=4 -march=armv4
 arch-$(CONFIG_CPU_32v3)		=-D__LINUX_ARM_ARCH__=3 -march=armv3m
@@ -82,7 +82,7 @@ tune-$(CONFIG_CPU_ARM720T)	=-mtune=arm7tdmi
 tune-$(CONFIG_CPU_ARM740T)	=-mtune=arm7tdmi
 tune-$(CONFIG_CPU_ARM9TDMI)	=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_ARM940T)	=-mtune=arm9tdmi
-tune-$(CONFIG_CPU_ARM946E)	=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
+tune-$(CONFIG_CPU_ARM946E)	=-mtune=arm9e
 tune-$(CONFIG_CPU_ARM920T)	=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_ARM922T)	=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_ARM925T)	=-mtune=arm9tdmi
@@ -90,11 +90,11 @@ tune-$(CONFIG_CPU_ARM926T)	=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_FA526)	=-mtune=arm9tdmi
 tune-$(CONFIG_CPU_SA110)	=-mtune=strongarm110
 tune-$(CONFIG_CPU_SA1100)	=-mtune=strongarm1100
-tune-$(CONFIG_CPU_XSCALE)	=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
-tune-$(CONFIG_CPU_XSC3)		=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
-tune-$(CONFIG_CPU_FEROCEON)	=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
-tune-$(CONFIG_CPU_V6)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
-tune-$(CONFIG_CPU_V6K)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
+tune-$(CONFIG_CPU_XSCALE)	=-mtune=xscale
+tune-$(CONFIG_CPU_XSC3)		=-mtune=xscale
+tune-$(CONFIG_CPU_FEROCEON)	=-mtune=xscale
+tune-$(CONFIG_CPU_V6)		=-mtune=arm1136j-s
+tune-$(CONFIG_CPU_V6K)		=-mtune=arm1136j-s
 
 # Evaluate tune cc-option calls now
 tune-y := $(tune-y)
-- 
GitLab


From fc42bbb7827be96c4a77c5ff490b84316c5f963b Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Thu, 4 Nov 2021 20:19:00 +0100
Subject: [PATCH 1458/4878] parisc: Fix backtrace to always include init
 funtion names

commit 279917e27edc293eb645a25428c6ab3f3bca3f86 upstream.

I noticed that sometimes at kernel startup the backtraces did not
included the function names of init functions. Their address were not
resolved to function names and instead only the address was printed.

Debugging shows that the culprit is is_ksym_addr() which is called
by the backtrace functions to check if an address belongs to a function in
the kernel. The problem occurs only for CONFIG_KALLSYMS_ALL=y.

When looking at is_ksym_addr() one can see that for CONFIG_KALLSYMS_ALL=y
the function only tries to resolve the address via is_kernel() function,
which checks like this:
	if (addr >= _stext && addr <= _end)
                return 1;
On parisc the init functions are located before _stext, so this check fails.
Other platforms seem to have all functions (including init functions)
behind _stext.

The following patch moves the _stext symbol at the beginning of the
kernel and thus includes the init section. This fixes the check and does
not seem to have any negative side effects on where the kernel mapping
happens in the map_pages() function in arch/parisc/mm/init.c.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@kernel.org # 5.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/vmlinux.lds.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 2769eb991f58d..3d208afd15bc6 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -57,6 +57,8 @@ SECTIONS
 {
 	. = KERNEL_BINARY_TEXT_START;
 
+	_stext = .;	/* start of kernel text, includes init code & data */
+
 	__init_begin = .;
 	HEAD_TEXT_SECTION
 	MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))
@@ -80,7 +82,6 @@ SECTIONS
 	/* freed after init ends here */
 
 	_text = .;		/* Text and read-only data */
-	_stext = .;
 	MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
 	.text ALIGN(PAGE_SIZE) : {
 		TEXT_TEXT
-- 
GitLab


From 1ee5bc2ba83f49dfcae9329cd531a2797af134a7 Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@orcam.me.uk>
Date: Fri, 22 Oct 2021 00:58:23 +0200
Subject: [PATCH 1459/4878] MIPS: Fix assembly error from MIPSr2 code used
 within MIPS_ISA_ARCH_LEVEL

commit a923a2676e60683aee46aa4b93c30aff240ac20d upstream.

Fix assembly errors like:

{standard input}: Assembler messages:
{standard input}:287: Error: opcode not supported on this processor: mips3 (mips3) `dins $10,$7,32,32'
{standard input}:680: Error: opcode not supported on this processor: mips3 (mips3) `dins $10,$7,32,32'
{standard input}:1274: Error: opcode not supported on this processor: mips3 (mips3) `dins $12,$9,32,32'
{standard input}:2175: Error: opcode not supported on this processor: mips3 (mips3) `dins $10,$7,32,32'
make[1]: *** [scripts/Makefile.build:277: mm/highmem.o] Error 1

with code produced from `__cmpxchg64' for MIPS64r2 CPU configurations
using CONFIG_32BIT and CONFIG_PHYS_ADDR_T_64BIT.

This is due to MIPS_ISA_ARCH_LEVEL downgrading the assembly architecture
to `r4000' i.e. MIPS III for MIPS64r2 configurations, while there is a
block of code containing a DINS MIPS64r2 instruction conditionalized on
MIPS_ISA_REV >= 2 within the scope of the downgrade.

The assembly architecture override code pattern has been put there for
LL/SC instructions, so that code compiles for configurations that select
a processor to build for that does not support these instructions while
still providing run-time support for processors that do, dynamically
switched by non-constant `cpu_has_llsc'.  It went in with linux-mips.org
commit aac8aa7717a2 ("Enable a suitable ISA for the assembler around
ll/sc so that code builds even for processors that don't support the
instructions. Plus minor formatting fixes.") back in 2005.

Fix the problem by wrapping these instructions along with the adjacent
SYNC instructions only, following the practice established with commit
cfd54de3b0e4 ("MIPS: Avoid move psuedo-instruction whilst using
MIPS_ISA_LEVEL") and commit 378ed6f0e3c5 ("MIPS: Avoid using .set mips0
to restore ISA").  Strictly speaking the SYNC instructions do not have
to be wrapped as they are only used as a Loongson3 erratum workaround,
so they will be enabled in the assembler by default, but do this so as
to keep code consistent with other places.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: c7e2d71dda7a ("MIPS: Fix set_pte() for Netlogic XLR using cmpxchg64()")
Cc: stable@vger.kernel.org # v5.1+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/mips/include/asm/cmpxchg.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index ed8f3f3c4304a..3e9c41f691659 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -249,6 +249,7 @@ static inline unsigned long __cmpxchg64(volatile void *ptr,
 	/* Load 64 bits from ptr */
 	"	" __SYNC(full, loongson3_war) "		\n"
 	"1:	lld	%L0, %3		# __cmpxchg64	\n"
+	"	.set	pop				\n"
 	/*
 	 * Split the 64 bit value we loaded into the 2 registers that hold the
 	 * ret variable.
@@ -276,12 +277,14 @@ static inline unsigned long __cmpxchg64(volatile void *ptr,
 	"	or	%L1, %L1, $at			\n"
 	"	.set	at				\n"
 #  endif
+	"	.set	push				\n"
+	"	.set	" MIPS_ISA_ARCH_LEVEL "		\n"
 	/* Attempt to store new at ptr */
 	"	scd	%L1, %2				\n"
 	/* If we failed, loop! */
 	"\t" __SC_BEQZ "%L1, 1b				\n"
-	"	.set	pop				\n"
 	"2:	" __SYNC(full, loongson3_war) "		\n"
+	"	.set	pop				\n"
 	: "=&r"(ret),
 	  "=&r"(tmp),
 	  "=" GCC_OFF_SMALL_ASM() (*(unsigned long long *)ptr)
-- 
GitLab


From 1372eb1871085a65940491d27f12f9e19b4927b3 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@codemonkey.org.uk>
Date: Fri, 29 Oct 2021 16:57:59 -0400
Subject: [PATCH 1460/4878] x86/mce: Add errata workaround for Skylake SKX37

commit e629fc1407a63dbb748f828f9814463ffc2a0af0 upstream.

Errata SKX37 is word-for-word identical to the other errata listed in
this workaround.   I happened to notice this after investigating a CMCI
storm on a Skylake host.  While I can't confirm this was the root cause,
spurious corrected errors does sound like a likely suspect.

Fixes: 2976908e4198 ("x86/mce: Do not log spurious corrected mce errors")
Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20211029205759.GA7385@codemonkey.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/mce/intel.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/intel.c
index abe9fe0fb8517..2577d78757810 100644
--- a/arch/x86/kernel/cpu/mce/intel.c
+++ b/arch/x86/kernel/cpu/mce/intel.c
@@ -526,12 +526,13 @@ bool intel_filter_mce(struct mce *m)
 {
 	struct cpuinfo_x86 *c = &boot_cpu_data;
 
-	/* MCE errata HSD131, HSM142, HSW131, BDM48, and HSM142 */
+	/* MCE errata HSD131, HSM142, HSW131, BDM48, HSM142 and SKX37 */
 	if ((c->x86 == 6) &&
 	    ((c->x86_model == INTEL_FAM6_HASWELL) ||
 	     (c->x86_model == INTEL_FAM6_HASWELL_L) ||
 	     (c->x86_model == INTEL_FAM6_BROADWELL) ||
-	     (c->x86_model == INTEL_FAM6_HASWELL_G)) &&
+	     (c->x86_model == INTEL_FAM6_HASWELL_G) ||
+	     (c->x86_model == INTEL_FAM6_SKYLAKE_X)) &&
 	    (m->bank == 0) &&
 	    ((m->status & 0xa0000000ffffffff) == 0x80000000000f0005))
 		return true;
-- 
GitLab


From f67f6eb717ae6277ddd6c1685b0e85ef17420096 Mon Sep 17 00:00:00 2001
From: Michael Pratt <mpratt@google.com>
Date: Mon, 1 Nov 2021 17:06:15 -0400
Subject: [PATCH 1461/4878] posix-cpu-timers: Clear task::posix_cputimers_work
 in copy_process()

commit ca7752caeaa70bd31d1714af566c9809688544af upstream.

copy_process currently copies task_struct.posix_cputimers_work as-is. If a
timer interrupt arrives while handling clone and before dup_task_struct
completes then the child task will have:

1. posix_cputimers_work.scheduled = true
2. posix_cputimers_work.work queued.

copy_process clears task_struct.task_works, so (2) will have no effect and
posix_cpu_timers_work will never run (not to mention it doesn't make sense
for two tasks to share a common linked list).

Since posix_cpu_timers_work never runs, posix_cputimers_work.scheduled is
never cleared. Since scheduled is set, future timer interrupts will skip
scheduling work, with the ultimate result that the task will never receive
timer expirations.

Together, the complete flow is:

1. Task 1 calls clone(), enters kernel.
2. Timer interrupt fires, schedules task work on Task 1.
   2a. task_struct.posix_cputimers_work.scheduled = true
   2b. task_struct.posix_cputimers_work.work added to
       task_struct.task_works.
3. dup_task_struct() copies Task 1 to Task 2.
4. copy_process() clears task_struct.task_works for Task 2.
5. Future timer interrupts on Task 2 see
   task_struct.posix_cputimers_work.scheduled = true and skip scheduling
   work.

Fix this by explicitly clearing contents of task_struct.posix_cputimers_work
in copy_process(). This was never meant to be shared or inherited across
tasks in the first place.

Fixes: 1fb497dd0030 ("posix-cpu-timers: Provide mechanisms to defer timer handling to task_work")
Reported-by: Rhys Hiltner <rhys@justin.tv>
Signed-off-by: Michael Pratt <mpratt@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211101210615.716522-1-mpratt@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/posix-timers.h   |  2 ++
 kernel/fork.c                  |  1 +
 kernel/time/posix-cpu-timers.c | 19 +++++++++++++++++--
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index 896c16d2c5fb2..913aa60228b16 100644
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -177,8 +177,10 @@ static inline void posix_cputimers_group_init(struct posix_cputimers *pct,
 #endif
 
 #ifdef CONFIG_POSIX_CPU_TIMERS_TASK_WORK
+void clear_posix_cputimers_work(struct task_struct *p);
 void posix_cputimers_init_work(void);
 #else
+static inline void clear_posix_cputimers_work(struct task_struct *p) { }
 static inline void posix_cputimers_init_work(void) { }
 #endif
 
diff --git a/kernel/fork.c b/kernel/fork.c
index 773b44be81f9d..e465903abed9e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2191,6 +2191,7 @@ static __latent_entropy struct task_struct *copy_process(
 	p->pdeath_signal = 0;
 	INIT_LIST_HEAD(&p->thread_group);
 	p->task_works = NULL;
+	clear_posix_cputimers_work(p);
 
 	/*
 	 * Ensure that the cgroup subsystem policies allow the new process to be
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 08c033b802569..5d76edd0ad9c2 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1100,14 +1100,29 @@ static void posix_cpu_timers_work(struct callback_head *work)
 	handle_posix_cpu_timers(current);
 }
 
+/*
+ * Clear existing posix CPU timers task work.
+ */
+void clear_posix_cputimers_work(struct task_struct *p)
+{
+	/*
+	 * A copied work entry from the old task is not meaningful, clear it.
+	 * N.B. init_task_work will not do this.
+	 */
+	memset(&p->posix_cputimers_work.work, 0,
+	       sizeof(p->posix_cputimers_work.work));
+	init_task_work(&p->posix_cputimers_work.work,
+		       posix_cpu_timers_work);
+	p->posix_cputimers_work.scheduled = false;
+}
+
 /*
  * Initialize posix CPU timers task work in init task. Out of line to
  * keep the callback static and to avoid header recursion hell.
  */
 void __init posix_cputimers_init_work(void)
 {
-	init_task_work(&current->posix_cputimers_work.work,
-		       posix_cpu_timers_work);
+	clear_posix_cputimers_work(current);
 }
 
 /*
-- 
GitLab


From 7930892cbd4008c353c8d397d0d3a18f8ad9f9ed Mon Sep 17 00:00:00 2001
From: Guo Ren <guoren@linux.alibaba.com>
Date: Fri, 5 Nov 2021 17:47:48 +0800
Subject: [PATCH 1462/4878] irqchip/sifive-plic: Fixup EOI failed when masked

commit 69ea463021be0d159ab30f96195fb0dd18ee2272 upstream.

When using "devm_request_threaded_irq(,,,,IRQF_ONESHOT,,)" in a driver,
only the first interrupt is handled, and following interrupts are never
delivered (initially reported in [1]).

That's because the RISC-V PLIC cannot EOI masked interrupts, as explained
in the description of Interrupt Completion in the PLIC spec [2]:

<quote>
The PLIC signals it has completed executing an interrupt handler by
writing the interrupt ID it received from the claim to the claim/complete
register. The PLIC does not check whether the completion ID is the same
as the last claim ID for that target. If the completion ID does not match
an interrupt source that *is currently enabled* for the target, the
completion is silently ignored.
</quote>

Re-enable the interrupt before completion if it has been masked during
the handling, and remask it afterwards.

[1] http://lists.infradead.org/pipermail/linux-riscv/2021-July/007441.html
[2] https://github.com/riscv/riscv-plic-spec/blob/8bc15a35d07c9edf7b5d23fec9728302595ffc4d/riscv-plic.adoc

Fixes: bb0fed1c60cc ("irqchip/sifive-plic: Switch to fasteoi flow")
Reported-by: Vincent Pelletier <plr.vincent@gmail.com>
Tested-by: Nikita Shubin <nikita.shubin@maquefel.me>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: stable@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
[maz: amended commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211105094748.3894453-1-guoren@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-sifive-plic.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 6f432d2a5cebd..926e55d838cb1 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -163,7 +163,13 @@ static void plic_irq_eoi(struct irq_data *d)
 {
 	struct plic_handler *handler = this_cpu_ptr(&plic_handlers);
 
-	writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM);
+	if (irqd_irq_masked(d)) {
+		plic_irq_unmask(d);
+		writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM);
+		plic_irq_mask(d);
+	} else {
+		writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM);
+	}
 }
 
 static struct irq_chip plic_chip = {
-- 
GitLab


From 0bf5c6a1e43fe8697b7df4d640fa59964c557bc6 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Tue, 7 Sep 2021 10:24:21 -0700
Subject: [PATCH 1463/4878] f2fs: should use GFP_NOFS for directory inodes

commit 92d602bc7177325e7453189a22e0c8764ed3453e upstream.

We use inline_dentry which requires to allocate dentry page when adding a link.
If we allow to reclaim memory from filesystem, we do down_read(&sbi->cp_rwsem)
twice by f2fs_lock_op(). I think this should be okay, but how about stopping
the lockdep complaint [1]?

f2fs_create()
 - f2fs_lock_op()
 - f2fs_do_add_link()
  - __f2fs_find_entry
   - f2fs_get_read_data_page()
   -> kswapd
    - shrink_node
     - f2fs_evict_inode
      - f2fs_lock_op()

[1]

fs_reclaim
){+.+.}-{0:0}
:
kswapd0:        lock_acquire+0x114/0x394
kswapd0:        __fs_reclaim_acquire+0x40/0x50
kswapd0:        prepare_alloc_pages+0x94/0x1ec
kswapd0:        __alloc_pages_nodemask+0x78/0x1b0
kswapd0:        pagecache_get_page+0x2e0/0x57c
kswapd0:        f2fs_get_read_data_page+0xc0/0x394
kswapd0:        f2fs_find_data_page+0xa4/0x23c
kswapd0:        find_in_level+0x1a8/0x36c
kswapd0:        __f2fs_find_entry+0x70/0x100
kswapd0:        f2fs_do_add_link+0x84/0x1ec
kswapd0:        f2fs_mkdir+0xe4/0x1e4
kswapd0:        vfs_mkdir+0x110/0x1c0
kswapd0:        do_mkdirat+0xa4/0x160
kswapd0:        __arm64_sys_mkdirat+0x24/0x34
kswapd0:        el0_svc_common.llvm.17258447499513131576+0xc4/0x1e8
kswapd0:        do_el0_svc+0x28/0xa0
kswapd0:        el0_svc+0x24/0x38
kswapd0:        el0_sync_handler+0x88/0xec
kswapd0:        el0_sync+0x1c0/0x200
kswapd0:
-> #1
(
&sbi->cp_rwsem
){++++}-{3:3}
:
kswapd0:        lock_acquire+0x114/0x394
kswapd0:        down_read+0x7c/0x98
kswapd0:        f2fs_do_truncate_blocks+0x78/0x3dc
kswapd0:        f2fs_truncate+0xc8/0x128
kswapd0:        f2fs_evict_inode+0x2b8/0x8b8
kswapd0:        evict+0xd4/0x2f8
kswapd0:        iput+0x1c0/0x258
kswapd0:        do_unlinkat+0x170/0x2a0
kswapd0:        __arm64_sys_unlinkat+0x4c/0x68
kswapd0:        el0_svc_common.llvm.17258447499513131576+0xc4/0x1e8
kswapd0:        do_el0_svc+0x28/0xa0
kswapd0:        el0_svc+0x24/0x38
kswapd0:        el0_sync_handler+0x88/0xec
kswapd0:        el0_sync+0x1c0/0x200

Cc: stable@vger.kernel.org
Fixes: bdbc90fa55af ("f2fs: don't put dentry page in pagecache into highmem")
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Light Hsieh <light.hsieh@mediatek.com>
Tested-by: Light Hsieh <light.hsieh@mediatek.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/f2fs/inode.c | 2 +-
 fs/f2fs/namei.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 657db2fb6739f..a35fcf43ad5a3 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -511,7 +511,7 @@ make_now:
 		inode->i_op = &f2fs_dir_inode_operations;
 		inode->i_fop = &f2fs_dir_operations;
 		inode->i_mapping->a_ops = &f2fs_dblock_aops;
-		inode_nohighmem(inode);
+		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 	} else if (S_ISLNK(inode->i_mode)) {
 		if (file_is_encrypt(inode))
 			inode->i_op = &f2fs_encrypted_symlink_inode_operations;
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 710a6f73a6858..6ae2beabe578d 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -744,7 +744,7 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	inode->i_op = &f2fs_dir_inode_operations;
 	inode->i_fop = &f2fs_dir_operations;
 	inode->i_mapping->a_ops = &f2fs_dblock_aops;
-	inode_nohighmem(inode);
+	mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 
 	set_inode_flag(inode, FI_INC_LINK);
 	f2fs_lock_op(sbi);
-- 
GitLab


From a8cdf34ff8b7ed659e81f1feb8ce3cd035ab8497 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Mon, 11 Oct 2021 14:12:36 +0200
Subject: [PATCH 1464/4878] net, neigh: Enable state migration between
 NUD_PERMANENT and NTF_USE

[ Upstream commit 3dc20f4762c62d3b3f0940644881ed818aa7b2f5 ]

Currently, it is not possible to migrate a neighbor entry between NUD_PERMANENT
state and NTF_USE flag with a dynamic NUD state from a user space control plane.
Similarly, it is not possible to add/remove NTF_EXT_LEARNED flag from an existing
neighbor entry in combination with NTF_USE flag.

This is due to the latter directly calling into neigh_event_send() without any
meta data updates as happening in __neigh_update(). Thus, to enable this use
case, extend the latter with a NEIGH_UPDATE_F_USE flag where we break the
NUD_PERMANENT state in particular so that a latter neigh_event_send() is able
to re-resolve a neighbor entry.

Before fix, NUD_PERMANENT -> NUD_* & NTF_USE:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a PERMANENT
  [...]
  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a PERMANENT
  [...]

As can be seen, despite the admin-triggered replace, the entry remains in the
NUD_PERMANENT state.

After fix, NUD_PERMANENT -> NUD_* & NTF_USE:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a PERMANENT
  [...]
  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a extern_learn REACHABLE
  [...]
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a extern_learn STALE
  [...]
  # ./ip/ip n replace 192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a PERMANENT
  [...]

After the fix, the admin-triggered replace switches to a dynamic state from
the NTF_USE flag which triggered a new neighbor resolution. Likewise, we can
transition back from there, if needed, into NUD_PERMANENT.

Similar before/after behavior can be observed for below transitions:

Before fix, NTF_USE -> NTF_USE | NTF_EXT_LEARNED -> NTF_USE:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
  [...]
  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
  [...]

After fix, NTF_USE -> NTF_USE | NTF_EXT_LEARNED -> NTF_USE:

  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
  [...]
  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use extern_learn
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a extern_learn REACHABLE
  [...]
  # ./ip/ip n replace 192.168.178.30 dev enp5s0 use
  # ./ip/ip n
  192.168.178.30 dev enp5s0 lladdr f4:8c:50:5e:71:9a REACHABLE
  [..]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/neighbour.h |  1 +
 net/core/neighbour.c    | 22 +++++++++++++---------
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 990f9b1d17092..d5767e25509cc 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -253,6 +253,7 @@ static inline void *neighbour_priv(const struct neighbour *n)
 #define NEIGH_UPDATE_F_OVERRIDE			0x00000001
 #define NEIGH_UPDATE_F_WEAK_OVERRIDE		0x00000002
 #define NEIGH_UPDATE_F_OVERRIDE_ISROUTER	0x00000004
+#define NEIGH_UPDATE_F_USE			0x10000000
 #define NEIGH_UPDATE_F_EXT_LEARNED		0x20000000
 #define NEIGH_UPDATE_F_ISROUTER			0x40000000
 #define NEIGH_UPDATE_F_ADMIN			0x80000000
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 01e243a578e9c..8eec7667aa761 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1222,7 +1222,7 @@ static void neigh_update_hhs(struct neighbour *neigh)
 				lladdr instead of overriding it
 				if it is different.
 	NEIGH_UPDATE_F_ADMIN	means that the change is administrative.
-
+	NEIGH_UPDATE_F_USE	means that the entry is user triggered.
 	NEIGH_UPDATE_F_OVERRIDE_ISROUTER allows to override existing
 				NTF_ROUTER flag.
 	NEIGH_UPDATE_F_ISROUTER	indicates if the neighbour is known as
@@ -1260,6 +1260,12 @@ static int __neigh_update(struct neighbour *neigh, const u8 *lladdr,
 		goto out;
 
 	ext_learn_change = neigh_update_ext_learned(neigh, flags, &notify);
+	if (flags & NEIGH_UPDATE_F_USE) {
+		new = old & ~NUD_PERMANENT;
+		neigh->nud_state = new;
+		err = 0;
+		goto out;
+	}
 
 	if (!(new & NUD_VALID)) {
 		neigh_del_timer(neigh);
@@ -1971,22 +1977,20 @@ static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	if (protocol)
 		neigh->protocol = protocol;
-
 	if (ndm->ndm_flags & NTF_EXT_LEARNED)
 		flags |= NEIGH_UPDATE_F_EXT_LEARNED;
-
 	if (ndm->ndm_flags & NTF_ROUTER)
 		flags |= NEIGH_UPDATE_F_ISROUTER;
+	if (ndm->ndm_flags & NTF_USE)
+		flags |= NEIGH_UPDATE_F_USE;
 
-	if (ndm->ndm_flags & NTF_USE) {
+	err = __neigh_update(neigh, lladdr, ndm->ndm_state, flags,
+			     NETLINK_CB(skb).portid, extack);
+	if (!err && ndm->ndm_flags & NTF_USE) {
 		neigh_event_send(neigh, NULL);
 		err = 0;
-	} else
-		err = __neigh_update(neigh, lladdr, ndm->ndm_state, flags,
-				     NETLINK_CB(skb).portid, extack);
-
+	}
 	neigh_release(neigh);
-
 out:
 	return err;
 }
-- 
GitLab


From 32246cefb9920e6f72a121f43cc3e06037fab63c Mon Sep 17 00:00:00 2001
From: Dominique Martinet <asmadeus@codewreck.org>
Date: Tue, 2 Nov 2021 19:47:47 +0900
Subject: [PATCH 1465/4878] 9p/net: fix missing error check in p9_check_errors

commit 27eb4c3144f7a5ebef3c9a261d80cb3e1fa784dc upstream.

Link: https://lkml.kernel.org/r/99338965-d36c-886e-cd0e-1d8fff2b4746@gmail.com
Reported-by: syzbot+06472778c97ed94af66d@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/9p/client.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/9p/client.c b/net/9p/client.c
index eb42bbb72f523..bf6ed00d7c37d 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -538,6 +538,8 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
 		kfree(ename);
 	} else {
 		err = p9pdu_readf(&req->rc, c->proto_version, "d", &ecode);
+		if (err)
+			goto out_err;
 		err = -ecode;
 
 		p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);
-- 
GitLab


From 74293225f50391620aaef3507ebd6fd17e0003e1 Mon Sep 17 00:00:00 2001
From: Vasily Averin <vvs@virtuozzo.com>
Date: Fri, 5 Nov 2021 13:38:09 -0700
Subject: [PATCH 1466/4878] memcg: prohibit unconditional exceeding the limit
 of dying tasks

commit a4ebf1b6ca1e011289677239a2a361fde4a88076 upstream.

Memory cgroup charging allows killed or exiting tasks to exceed the hard
limit.  It is assumed that the amount of the memory charged by those
tasks is bound and most of the memory will get released while the task
is exiting.  This is resembling a heuristic for the global OOM situation
when tasks get access to memory reserves.  There is no global memory
shortage at the memcg level so the memcg heuristic is more relieved.

The above assumption is overly optimistic though.  E.g.  vmalloc can
scale to really large requests and the heuristic would allow that.  We
used to have an early break in the vmalloc allocator for killed tasks
but this has been reverted by commit b8c8a338f75e ("Revert "vmalloc:
back off when the current task is killed"").  There are likely other
similar code paths which do not check for fatal signals in an
allocation&charge loop.  Also there are some kernel objects charged to a
memcg which are not bound to a process life time.

It has been observed that it is not really hard to trigger these
bypasses and cause global OOM situation.

One potential way to address these runaways would be to limit the amount
of excess (similar to the global OOM with limited oom reserves).  This
is certainly possible but it is not really clear how much of an excess
is desirable and still protects from global OOMs as that would have to
consider the overall memcg configuration.

This patch is addressing the problem by removing the heuristic
altogether.  Bypass is only allowed for requests which either cannot
fail or where the failure is not desirable while excess should be still
limited (e.g.  atomic requests).  Implementation wise a killed or dying
task fails to charge if it has passed the OOM killer stage.  That should
give all forms of reclaim chance to restore the limit before the failure
(ENOMEM) and tell the caller to back off.

In addition, this patch renames should_force_charge() helper to
task_is_dying() because now its use is not associated witch forced
charging.

This patch depends on pagefault_out_of_memory() to not trigger
out_of_memory(), because then a memcg failure can unwind to VM_FAULT_OOM
and cause a global OOM killer.

Link: https://lkml.kernel.org/r/8f5cebbb-06da-4902-91f0-6566fc4b4203@virtuozzo.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/memcontrol.c | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 92bf987d0a410..4bb2a4c593f73 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -230,7 +230,7 @@ enum res_type {
 	     iter != NULL;				\
 	     iter = mem_cgroup_iter(NULL, iter, NULL))
 
-static inline bool should_force_charge(void)
+static inline bool task_is_dying(void)
 {
 	return tsk_is_oom_victim(current) || fatal_signal_pending(current) ||
 		(current->flags & PF_EXITING);
@@ -1729,7 +1729,7 @@ static bool mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask,
 	 * A few threads which were not waiting at mutex_lock_killable() can
 	 * fail to bail out. Therefore, check again after holding oom_lock.
 	 */
-	ret = should_force_charge() || out_of_memory(&oc);
+	ret = task_is_dying() || out_of_memory(&oc);
 
 unlock:
 	mutex_unlock(&oom_lock);
@@ -2683,6 +2683,7 @@ static int try_charge(struct mem_cgroup *memcg, gfp_t gfp_mask,
 	struct page_counter *counter;
 	enum oom_status oom_status;
 	unsigned long nr_reclaimed;
+	bool passed_oom = false;
 	bool may_swap = true;
 	bool drained = false;
 	unsigned long pflags;
@@ -2719,15 +2720,6 @@ retry:
 	if (gfp_mask & __GFP_ATOMIC)
 		goto force;
 
-	/*
-	 * Unlike in global OOM situations, memcg is not in a physical
-	 * memory shortage.  Allow dying and OOM-killed tasks to
-	 * bypass the last charges so that they can exit quickly and
-	 * free their memory.
-	 */
-	if (unlikely(should_force_charge()))
-		goto force;
-
 	/*
 	 * Prevent unbounded recursion when reclaim operations need to
 	 * allocate memory. This might exceed the limits temporarily,
@@ -2788,8 +2780,9 @@ retry:
 	if (gfp_mask & __GFP_NOFAIL)
 		goto force;
 
-	if (fatal_signal_pending(current))
-		goto force;
+	/* Avoid endless loop for tasks bypassed by the oom killer */
+	if (passed_oom && task_is_dying())
+		goto nomem;
 
 	/*
 	 * keep retrying as long as the memcg oom killer is able to make
@@ -2798,14 +2791,10 @@ retry:
 	 */
 	oom_status = mem_cgroup_oom(mem_over_limit, gfp_mask,
 		       get_order(nr_pages * PAGE_SIZE));
-	switch (oom_status) {
-	case OOM_SUCCESS:
+	if (oom_status == OOM_SUCCESS) {
+		passed_oom = true;
 		nr_retries = MAX_RECLAIM_RETRIES;
 		goto retry;
-	case OOM_FAILED:
-		goto force;
-	default:
-		goto nomem;
 	}
 nomem:
 	if (!(gfp_mask & __GFP_NOFAIL))
-- 
GitLab


From 51cf71d5cb03c38fed74588ea79ed8673a8446f9 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Mon, 15 Nov 2021 16:36:27 +0530
Subject: [PATCH 1467/4878] powerpc/lib: Add helper to check if offset is
 within conditional branch range

upstream commit 4549c3ea3160fa8b3f37dfe2f957657bb265eda9

Add a helper to check if a given offset is within the branch range for a
powerpc conditional branch instruction, and update some sites to use the
new helper.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/442b69a34ced32ca346a0d9a855f3f6cfdbbbd41.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/include/asm/code-patching.h | 1 +
 arch/powerpc/lib/code-patching.c         | 7 ++++++-
 arch/powerpc/net/bpf_jit.h               | 7 +------
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index d5b3c3bb95b40..fa8746c320067 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -23,6 +23,7 @@
 #define BRANCH_ABSOLUTE	0x2
 
 bool is_offset_in_branch_range(long offset);
+bool is_offset_in_cond_branch_range(long offset);
 int create_branch(struct ppc_inst *instr, const struct ppc_inst *addr,
 		  unsigned long target, int flags);
 int create_cond_branch(struct ppc_inst *instr, const struct ppc_inst *addr,
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
index 2333625b5e315..a2e4f864b63d2 100644
--- a/arch/powerpc/lib/code-patching.c
+++ b/arch/powerpc/lib/code-patching.c
@@ -230,6 +230,11 @@ bool is_offset_in_branch_range(long offset)
 	return (offset >= -0x2000000 && offset <= 0x1fffffc && !(offset & 0x3));
 }
 
+bool is_offset_in_cond_branch_range(long offset)
+{
+	return offset >= -0x8000 && offset <= 0x7fff && !(offset & 0x3);
+}
+
 /*
  * Helper to check if a given instruction is a conditional branch
  * Derived from the conditional checks in analyse_instr()
@@ -283,7 +288,7 @@ int create_cond_branch(struct ppc_inst *instr, const struct ppc_inst *addr,
 		offset = offset - (unsigned long)addr;
 
 	/* Check we can represent the target in the instruction format */
-	if (offset < -0x8000 || offset > 0x7FFF || offset & 0x3)
+	if (!is_offset_in_cond_branch_range(offset))
 		return 1;
 
 	/* Mask out the flags and target, so they don't step on each other. */
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index d0a67a1bbaf18..8f88b3d43f0a5 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -71,11 +71,6 @@
 #define PPC_FUNC_ADDR(d,i) do { PPC_LI32(d, i); } while(0)
 #endif
 
-static inline bool is_nearbranch(int offset)
-{
-	return (offset < 32768) && (offset >= -32768);
-}
-
 /*
  * The fly in the ointment of code size changing from pass to pass is
  * avoided by padding the short branch case with a NOP.	 If code size differs
@@ -84,7 +79,7 @@ static inline bool is_nearbranch(int offset)
  * state.
  */
 #define PPC_BCC(cond, dest)	do {					      \
-		if (is_nearbranch((dest) - (ctx->idx * 4))) {		      \
+		if (is_offset_in_cond_branch_range((long)(dest) - (ctx->idx * 4))) {	\
 			PPC_BCC_SHORT(cond, dest);			      \
 			EMIT(PPC_RAW_NOP());				      \
 		} else {						      \
-- 
GitLab


From 951fb7bf387fdb65712d53c48ac6a90ec258173f Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Mon, 15 Nov 2021 16:36:28 +0530
Subject: [PATCH 1468/4878] powerpc/bpf: Validate branch ranges

upstream commit 3832ba4e283d7052b783dab8311df7e3590fed93

Add checks to ensure that we never emit branch instructions with
truncated branch offsets.

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Tested-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/71d33a6b7603ec1013c9734dd8bdd4ff5e929142.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
[drop ppc32 changes]
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/net/bpf_jit.h        | 26 ++++++++++++++++++++------
 arch/powerpc/net/bpf_jit_comp64.c |  8 ++++++--
 2 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 8f88b3d43f0a5..1a5b4da8a2355 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -12,6 +12,7 @@
 
 #include <asm/types.h>
 #include <asm/ppc-opcode.h>
+#include <asm/code-patching.h>
 
 #ifdef PPC64_ELF_ABI_v1
 #define FUNCTION_DESCR_SIZE	24
@@ -24,13 +25,26 @@
 #define EMIT(instr)		PLANT_INSTR(image, ctx->idx, instr)
 
 /* Long jump; (unconditional 'branch') */
-#define PPC_JMP(dest)		EMIT(PPC_INST_BRANCH |			      \
-				     (((dest) - (ctx->idx * 4)) & 0x03fffffc))
+#define PPC_JMP(dest)							      \
+	do {								      \
+		long offset = (long)(dest) - (ctx->idx * 4);		      \
+		if (!is_offset_in_branch_range(offset)) {		      \
+			pr_err_ratelimited("Branch offset 0x%lx (@%u) out of range\n", offset, ctx->idx);			\
+			return -ERANGE;					      \
+		}							      \
+		EMIT(PPC_INST_BRANCH | (offset & 0x03fffffc));		      \
+	} while (0)
 /* "cond" here covers BO:BI fields. */
-#define PPC_BCC_SHORT(cond, dest)	EMIT(PPC_INST_BRANCH_COND |	      \
-					     (((cond) & 0x3ff) << 16) |	      \
-					     (((dest) - (ctx->idx * 4)) &     \
-					      0xfffc))
+#define PPC_BCC_SHORT(cond, dest)					      \
+	do {								      \
+		long offset = (long)(dest) - (ctx->idx * 4);		      \
+		if (!is_offset_in_cond_branch_range(offset)) {		      \
+			pr_err_ratelimited("Conditional branch offset 0x%lx (@%u) out of range\n", offset, ctx->idx);		\
+			return -ERANGE;					      \
+		}							      \
+		EMIT(PPC_INST_BRANCH_COND | (((cond) & 0x3ff) << 16) | (offset & 0xfffc));					\
+	} while (0)
+
 /* Sign-extended 32-bit immediate load */
 #define PPC_LI32(d, i)		do {					      \
 		if ((int)(uintptr_t)(i) >= -32768 &&			      \
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index a2750d6ffd0f5..803d95af27553 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -224,7 +224,7 @@ static void bpf_jit_emit_func_call_rel(u32 *image, struct codegen_context *ctx,
 	EMIT(PPC_RAW_BLRL());
 }
 
-static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 out)
+static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 out)
 {
 	/*
 	 * By now, the eBPF program has already setup parameters in r3, r4 and r5
@@ -285,7 +285,9 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32
 	bpf_jit_emit_common_epilogue(image, ctx);
 
 	EMIT(PPC_RAW_BCTR());
+
 	/* out: */
+	return 0;
 }
 
 /* Assemble the body code between the prologue & epilogue */
@@ -1010,7 +1012,9 @@ cond_branch:
 		 */
 		case BPF_JMP | BPF_TAIL_CALL:
 			ctx->seen |= SEEN_TAILCALL;
-			bpf_jit_emit_tail_call(image, ctx, addrs[i + 1]);
+			ret = bpf_jit_emit_tail_call(image, ctx, addrs[i + 1]);
+			if (ret < 0)
+				return ret;
 			break;
 
 		default:
-- 
GitLab


From 7fcf86565bb67de1118b446397b5670fc69d3f51 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Mon, 15 Nov 2021 16:36:29 +0530
Subject: [PATCH 1469/4878] powerpc/security: Add a helper to query stf_barrier
 type

upstream commit 030905920f32e91a52794937f67434ac0b3ea41a

Add a helper to return the stf_barrier type for the current processor.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3bd5d7f96ea1547991ac2ce3137dc2b220bae285.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/include/asm/security_features.h | 5 +++++
 arch/powerpc/kernel/security.c               | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/arch/powerpc/include/asm/security_features.h b/arch/powerpc/include/asm/security_features.h
index b774a4477d5f1..e380acc6e4132 100644
--- a/arch/powerpc/include/asm/security_features.h
+++ b/arch/powerpc/include/asm/security_features.h
@@ -39,6 +39,11 @@ static inline bool security_ftr_enabled(u64 feature)
 	return !!(powerpc_security_features & feature);
 }
 
+#ifdef CONFIG_PPC_BOOK3S_64
+enum stf_barrier_type stf_barrier_type_get(void);
+#else
+static inline enum stf_barrier_type stf_barrier_type_get(void) { return STF_BARRIER_NONE; }
+#endif
 
 // Features indicating support for Spectre/Meltdown mitigations
 
diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
index e4e1a94ccf6a6..3f510c911b107 100644
--- a/arch/powerpc/kernel/security.c
+++ b/arch/powerpc/kernel/security.c
@@ -261,6 +261,11 @@ static int __init handle_no_stf_barrier(char *p)
 
 early_param("no_stf_barrier", handle_no_stf_barrier);
 
+enum stf_barrier_type stf_barrier_type_get(void)
+{
+	return stf_enabled_flush_types;
+}
+
 /* This is the generic flag used by other architectures */
 static int __init handle_ssbd(char *p)
 {
-- 
GitLab


From 1ada86999dc84b852fcc32962f4002e939f4beb7 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Mon, 15 Nov 2021 16:36:30 +0530
Subject: [PATCH 1470/4878] powerpc/bpf: Emit stf barrier instruction sequences
 for BPF_NOSPEC

upstream commit b7540d62509453263604a155bf2d5f0ed450cba2

Emit similar instruction sequences to commit a048a07d7f4535
("powerpc/64s: Add support for a store forwarding barrier at kernel
entry/exit") when encountering BPF_NOSPEC.

Mitigations are enabled depending on what the firmware advertises. In
particular, we do not gate these mitigations based on current settings,
just like in x86. Due to this, we don't need to take any action if
mitigations are enabled or disabled at runtime.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/956570cbc191cd41f8274bed48ee757a86dac62a.1633464148.git.naveen.n.rao@linux.vnet.ibm.com
[adjust macros to account for commits 1c9debbc2eb539 and ef909ba954145e.
adjust security feature checks to account for commit 84ed26fd00c514]
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/net/bpf_jit64.h      |  8 ++---
 arch/powerpc/net/bpf_jit_comp64.c | 56 ++++++++++++++++++++++++++++---
 2 files changed, 56 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h
index 2e33c6673ff95..4d164e865b392 100644
--- a/arch/powerpc/net/bpf_jit64.h
+++ b/arch/powerpc/net/bpf_jit64.h
@@ -16,18 +16,18 @@
  * with our redzone usage.
  *
  *		[	prev sp		] <-------------
- *		[   nv gpr save area	] 6*8		|
+ *		[   nv gpr save area	] 5*8		|
  *		[    tail_call_cnt	] 8		|
- *		[    local_tmp_var	] 8		|
+ *		[    local_tmp_var	] 16		|
  * fp (r31) -->	[   ebpf stack space	] upto 512	|
  *		[     frame header	] 32/112	|
  * sp (r1) --->	[    stack pointer	] --------------
  */
 
 /* for gpr non volatile registers BPG_REG_6 to 10 */
-#define BPF_PPC_STACK_SAVE	(6*8)
+#define BPF_PPC_STACK_SAVE	(5*8)
 /* for bpf JIT code internal usage */
-#define BPF_PPC_STACK_LOCALS	16
+#define BPF_PPC_STACK_LOCALS	24
 /* stack frame excluding BPF stack, ensure this is quadword aligned */
 #define BPF_PPC_STACKFRAME	(STACK_FRAME_MIN_SIZE + \
 				 BPF_PPC_STACK_LOCALS + BPF_PPC_STACK_SAVE)
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 803d95af27553..8936090acb579 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -15,6 +15,7 @@
 #include <linux/if_vlan.h>
 #include <asm/kprobes.h>
 #include <linux/bpf.h>
+#include <asm/security_features.h>
 
 #include "bpf_jit64.h"
 
@@ -56,9 +57,9 @@ static inline bool bpf_has_stack_frame(struct codegen_context *ctx)
  *		[	prev sp		] <-------------
  *		[	  ...       	] 		|
  * sp (r1) --->	[    stack pointer	] --------------
- *		[   nv gpr save area	] 6*8
+ *		[   nv gpr save area	] 5*8
  *		[    tail_call_cnt	] 8
- *		[    local_tmp_var	] 8
+ *		[    local_tmp_var	] 16
  *		[   unused red zone	] 208 bytes protected
  */
 static int bpf_jit_stack_local(struct codegen_context *ctx)
@@ -66,12 +67,12 @@ static int bpf_jit_stack_local(struct codegen_context *ctx)
 	if (bpf_has_stack_frame(ctx))
 		return STACK_FRAME_MIN_SIZE + ctx->stack_size;
 	else
-		return -(BPF_PPC_STACK_SAVE + 16);
+		return -(BPF_PPC_STACK_SAVE + 24);
 }
 
 static int bpf_jit_stack_tailcallcnt(struct codegen_context *ctx)
 {
-	return bpf_jit_stack_local(ctx) + 8;
+	return bpf_jit_stack_local(ctx) + 16;
 }
 
 static int bpf_jit_stack_offsetof(struct codegen_context *ctx, int reg)
@@ -290,11 +291,34 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o
 	return 0;
 }
 
+/*
+ * We spill into the redzone always, even if the bpf program has its own stackframe.
+ * Offsets hardcoded based on BPF_PPC_STACK_SAVE -- see bpf_jit_stack_local()
+ */
+void bpf_stf_barrier(void);
+
+asm (
+"		.global bpf_stf_barrier		;"
+"	bpf_stf_barrier:			;"
+"		std	21,-64(1)		;"
+"		std	22,-56(1)		;"
+"		sync				;"
+"		ld	21,-64(1)		;"
+"		ld	22,-56(1)		;"
+"		ori	31,31,0			;"
+"		.rept 14			;"
+"		b	1f			;"
+"	1:					;"
+"		.endr				;"
+"		blr				;"
+);
+
 /* Assemble the body code between the prologue & epilogue */
 static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
 			      struct codegen_context *ctx,
 			      u32 *addrs, bool extra_pass)
 {
+	enum stf_barrier_type stf_barrier = stf_barrier_type_get();
 	const struct bpf_insn *insn = fp->insnsi;
 	int flen = fp->len;
 	int i, ret;
@@ -665,6 +689,30 @@ emit_clear:
 		 * BPF_ST NOSPEC (speculation barrier)
 		 */
 		case BPF_ST | BPF_NOSPEC:
+			if (!security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) ||
+					(!security_ftr_enabled(SEC_FTR_L1D_FLUSH_PR) &&
+					 (!security_ftr_enabled(SEC_FTR_L1D_FLUSH_HV) || !cpu_has_feature(CPU_FTR_HVMODE))))
+				break;
+
+			switch (stf_barrier) {
+			case STF_BARRIER_EIEIO:
+				EMIT(0x7c0006ac | 0x02000000);
+				break;
+			case STF_BARRIER_SYNC_ORI:
+				EMIT(PPC_INST_SYNC);
+				EMIT(PPC_RAW_LD(b2p[TMP_REG_1], 13, 0));
+				EMIT(PPC_RAW_ORI(31, 31, 0));
+				break;
+			case STF_BARRIER_FALLBACK:
+				EMIT(PPC_INST_MFLR | ___PPC_RT(b2p[TMP_REG_1]));
+				PPC_LI64(12, dereference_kernel_function_descriptor(bpf_stf_barrier));
+				EMIT(PPC_RAW_MTCTR(12));
+				EMIT(PPC_INST_BCTR | 0x1);
+				EMIT(PPC_RAW_MTLR(b2p[TMP_REG_1]));
+				break;
+			case STF_BARRIER_NONE:
+				break;
+			}
 			break;
 
 		/*
-- 
GitLab


From ac7f6befc3d1a58728ce3b93546aa24967ad90e7 Mon Sep 17 00:00:00 2001
From: Vasily Averin <vvs@virtuozzo.com>
Date: Fri, 5 Nov 2021 13:38:02 -0700
Subject: [PATCH 1471/4878] mm, oom: pagefault_out_of_memory: don't force
 global OOM for dying tasks

commit 0b28179a6138a5edd9d82ad2687c05b3773c387b upstream.

Patch series "memcg: prohibit unconditional exceeding the limit of dying tasks", v3.

Memory cgroup charging allows killed or exiting tasks to exceed the hard
limit.  It can be misused and allowed to trigger global OOM from inside
a memcg-limited container.  On the other hand if memcg fails allocation,
called from inside #PF handler it triggers global OOM from inside
pagefault_out_of_memory().

To prevent these problems this patchset:
 (a) removes execution of out_of_memory() from
     pagefault_out_of_memory(), becasue nobody can explain why it is
     necessary.
 (b) allow memcg to fail allocation of dying/killed tasks.

This patch (of 3):

Any allocation failure during the #PF path will return with VM_FAULT_OOM
which in turn results in pagefault_out_of_memory which in turn executes
out_out_memory() and can kill a random task.

An allocation might fail when the current task is the oom victim and
there are no memory reserves left.  The OOM killer is already handled at
the page allocator level for the global OOM and at the charging level
for the memcg one.  Both have much more information about the scope of
allocation/charge request.  This means that either the OOM killer has
been invoked properly and didn't lead to the allocation success or it
has been skipped because it couldn't have been invoked.  In both cases
triggering it from here is pointless and even harmful.

It makes much more sense to let the killed task die rather than to wake
up an eternally hungry oom-killer and send him to choose a fatter victim
for breakfast.

Link: https://lkml.kernel.org/r/0828a149-786e-7c06-b70a-52d086818ea3@virtuozzo.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Roman Gushchin <guro@fb.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/oom_kill.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 8b84661a64109..ea58ac23bbc5f 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -1135,6 +1135,9 @@ void pagefault_out_of_memory(void)
 	if (mem_cgroup_oom_synchronize(true))
 		return;
 
+	if (fatal_signal_pending(current))
+		return;
+
 	if (!mutex_trylock(&oom_lock))
 		return;
 	out_of_memory(&oc);
-- 
GitLab


From 1d457987366f7a92d03e03df80f9a63040133233 Mon Sep 17 00:00:00 2001
From: Michal Hocko <mhocko@suse.com>
Date: Fri, 5 Nov 2021 13:38:06 -0700
Subject: [PATCH 1472/4878] mm, oom: do not trigger out_of_memory from the #PF

commit 60e2793d440a3ec95abb5d6d4fc034a4b480472d upstream.

Any allocation failure during the #PF path will return with VM_FAULT_OOM
which in turn results in pagefault_out_of_memory.  This can happen for 2
different reasons.  a) Memcg is out of memory and we rely on
mem_cgroup_oom_synchronize to perform the memcg OOM handling or b)
normal allocation fails.

The latter is quite problematic because allocation paths already trigger
out_of_memory and the page allocator tries really hard to not fail
allocations.  Anyway, if the OOM killer has been already invoked there
is no reason to invoke it again from the #PF path.  Especially when the
OOM condition might be gone by that time and we have no way to find out
other than allocate.

Moreover if the allocation failed and the OOM killer hasn't been invoked
then we are unlikely to do the right thing from the #PF context because
we have already lost the allocation context and restictions and
therefore might oom kill a task from a different NUMA domain.

This all suggests that there is no legitimate reason to trigger
out_of_memory from pagefault_out_of_memory so drop it.  Just to be sure
that no #PF path returns with VM_FAULT_OOM without allocation print a
warning that this is happening before we restart the #PF.

[VvS: #PF allocation can hit into limit of cgroup v1 kmem controller.
This is a local problem related to memcg, however, it causes unnecessary
global OOM kills that are repeated over and over again and escalate into a
real disaster.  This has been broken since kmem accounting has been
introduced for cgroup v1 (3.8).  There was no kmem specific reclaim for
the separate limit so the only way to handle kmem hard limit was to return
with ENOMEM.  In upstream the problem will be fixed by removing the
outdated kmem limit, however stable and LTS kernels cannot do it and are
still affected.  This patch fixes the problem and should be backported
into stable/LTS.]

Link: https://lkml.kernel.org/r/f5fd8dd8-0ad4-c524-5f65-920b01972a42@virtuozzo.com
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Roman Gushchin <guro@fb.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/oom_kill.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index ea58ac23bbc5f..419a814f467e0 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -1118,19 +1118,15 @@ bool out_of_memory(struct oom_control *oc)
 }
 
 /*
- * The pagefault handler calls here because it is out of memory, so kill a
- * memory-hogging task. If oom_lock is held by somebody else, a parallel oom
- * killing is already in progress so do nothing.
+ * The pagefault handler calls here because some allocation has failed. We have
+ * to take care of the memcg OOM here because this is the only safe context without
+ * any locks held but let the oom killer triggered from the allocation context care
+ * about the global OOM.
  */
 void pagefault_out_of_memory(void)
 {
-	struct oom_control oc = {
-		.zonelist = NULL,
-		.nodemask = NULL,
-		.memcg = NULL,
-		.gfp_mask = 0,
-		.order = 0,
-	};
+	static DEFINE_RATELIMIT_STATE(pfoom_rs, DEFAULT_RATELIMIT_INTERVAL,
+				      DEFAULT_RATELIMIT_BURST);
 
 	if (mem_cgroup_oom_synchronize(true))
 		return;
@@ -1138,8 +1134,6 @@ void pagefault_out_of_memory(void)
 	if (fatal_signal_pending(current))
 		return;
 
-	if (!mutex_trylock(&oom_lock))
-		return;
-	out_of_memory(&oc);
-	mutex_unlock(&oom_lock);
+	if (__ratelimit(&pfoom_rs))
+		pr_warn("Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF\n");
 }
-- 
GitLab


From 332306b1e731bde88fa748690450603265ab0637 Mon Sep 17 00:00:00 2001
From: Jack Andersen <jackoalan@gmail.com>
Date: Mon, 18 Oct 2021 13:25:41 +0200
Subject: [PATCH 1473/4878] mfd: dln2: Add cell for initializing DLN2 ADC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 313c84b5ae4104e48c661d5d706f9f4c425fd50f upstream.

This patch extends the DLN2 driver; adding cell for adc_dln2 module.

The original patch[1] fell through the cracks when the driver was added
so ADC has never actually been usable. That patch did not have ACPI
support which was added in v5.9, so the oldest supported version this
current patch can be backported to is 5.10.

[1] https://www.spinics.net/lists/linux-iio/msg33975.html

Cc: <stable@vger.kernel.org> # 5.10+
Signed-off-by: Jack Andersen <jackoalan@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211018112541.25466-1-noralf@tronnes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mfd/dln2.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c
index 83e676a096dc1..852129ea07666 100644
--- a/drivers/mfd/dln2.c
+++ b/drivers/mfd/dln2.c
@@ -50,6 +50,7 @@ enum dln2_handle {
 	DLN2_HANDLE_GPIO,
 	DLN2_HANDLE_I2C,
 	DLN2_HANDLE_SPI,
+	DLN2_HANDLE_ADC,
 	DLN2_HANDLES
 };
 
@@ -653,6 +654,7 @@ enum {
 	DLN2_ACPI_MATCH_GPIO	= 0,
 	DLN2_ACPI_MATCH_I2C	= 1,
 	DLN2_ACPI_MATCH_SPI	= 2,
+	DLN2_ACPI_MATCH_ADC	= 3,
 };
 
 static struct dln2_platform_data dln2_pdata_gpio = {
@@ -683,6 +685,16 @@ static struct mfd_cell_acpi_match dln2_acpi_match_spi = {
 	.adr = DLN2_ACPI_MATCH_SPI,
 };
 
+/* Only one ADC port supported */
+static struct dln2_platform_data dln2_pdata_adc = {
+	.handle = DLN2_HANDLE_ADC,
+	.port = 0,
+};
+
+static struct mfd_cell_acpi_match dln2_acpi_match_adc = {
+	.adr = DLN2_ACPI_MATCH_ADC,
+};
+
 static const struct mfd_cell dln2_devs[] = {
 	{
 		.name = "dln2-gpio",
@@ -702,6 +714,12 @@ static const struct mfd_cell dln2_devs[] = {
 		.platform_data = &dln2_pdata_spi,
 		.pdata_size = sizeof(struct dln2_platform_data),
 	},
+	{
+		.name = "dln2-adc",
+		.acpi_match = &dln2_acpi_match_adc,
+		.platform_data = &dln2_pdata_adc,
+		.pdata_size = sizeof(struct dln2_platform_data),
+	},
 };
 
 static void dln2_stop(struct dln2_dev *dln2)
-- 
GitLab


From 7d0341b37d9763a6e7e1a3b7464d115839e30246 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 21 Sep 2021 19:35:06 +0200
Subject: [PATCH 1474/4878] video: backlight: Drop maximum brightness override
 for brightness zero
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 33a5471f8da976bf271a1ebbd6b9d163cb0cb6aa upstream.

The note in c2adda27d202f ("video: backlight: Add of_find_backlight helper
in backlight.c") says that gpio-backlight uses brightness as power state.
This has been fixed since in ec665b756e6f7 ("backlight: gpio-backlight:
Correct initial power state handling") and other backlight drivers do not
require this workaround. Drop the workaround.

This fixes the case where e.g. pwm-backlight can perfectly well be set to
brightness 0 on boot in DT, which without this patch leads to the display
brightness to be max instead of off.

Fixes: c2adda27d202f ("video: backlight: Add of_find_backlight helper in backlight.c")
Cc: <stable@vger.kernel.org> # 5.4+
Cc: <stable@vger.kernel.org> # 4.19.x: ec665b756e6f7: backlight: gpio-backlight: Correct initial power state handling
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/backlight/backlight.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 537fe1b376ad7..fc990e576340b 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -688,12 +688,6 @@ static struct backlight_device *of_find_backlight(struct device *dev)
 			of_node_put(np);
 			if (!bd)
 				return ERR_PTR(-EPROBE_DEFER);
-			/*
-			 * Note: gpio_backlight uses brightness as
-			 * power state during probe
-			 */
-			if (!bd->props.brightness)
-				bd->props.brightness = bd->props.max_brightness;
 		}
 	}
 
-- 
GitLab


From 1174298a5b31ba566a4dee424230c10673014ea7 Mon Sep 17 00:00:00 2001
From: Vineeth Vijayan <vneethv@linux.ibm.com>
Date: Fri, 5 Nov 2021 16:44:51 +0100
Subject: [PATCH 1475/4878] s390/cio: check the subchannel validity for
 dev_busid

commit a4751f157c194431fae9e9c493f456df8272b871 upstream.

Check the validity of subchanel before reading other fields in
the schib.

Fixes: d3683c055212 ("s390/cio: add dev_busid sysfs entry for each subchannel")
CC: <stable@vger.kernel.org>
Reported-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Link: https://lore.kernel.org/r/20211105154451.847288-1-vneethv@linux.ibm.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/cio/css.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 305db4173dcf3..cf2c3c4c590f9 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -433,8 +433,8 @@ static ssize_t dev_busid_show(struct device *dev,
 	struct subchannel *sch = to_subchannel(dev);
 	struct pmcw *pmcw = &sch->schib.pmcw;
 
-	if ((pmcw->st == SUBCHANNEL_TYPE_IO ||
-	     pmcw->st == SUBCHANNEL_TYPE_MSG) && pmcw->dnv)
+	if ((pmcw->st == SUBCHANNEL_TYPE_IO && pmcw->dnv) ||
+	    (pmcw->st == SUBCHANNEL_TYPE_MSG && pmcw->w))
 		return sysfs_emit(buf, "0.%x.%04x\n", sch->schid.ssid,
 				  pmcw->dev);
 	else
-- 
GitLab


From 57de1fbecff0bfe56d6db4af2b51741596968600 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@linux.ibm.com>
Date: Tue, 2 Nov 2021 10:55:30 +0100
Subject: [PATCH 1476/4878] s390/tape: fix timer initialization in
 tape_std_assign()

commit 213fca9e23b59581c573d558aa477556f00b8198 upstream.

commit 9c6c273aa424 ("timer: Remove init_timer_on_stack() in favor
of timer_setup_on_stack()") changed the timer setup from
init_timer_on_stack(() to timer_setup(), but missed to change the
mod_timer() call. And while at it, use msecs_to_jiffies() instead
of the open coded timeout calculation.

Cc: stable@vger.kernel.org
Fixes: 9c6c273aa424 ("timer: Remove init_timer_on_stack() in favor of timer_setup_on_stack()")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/char/tape_std.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c
index 1f5fab617b679..f7e75d9fedf61 100644
--- a/drivers/s390/char/tape_std.c
+++ b/drivers/s390/char/tape_std.c
@@ -53,7 +53,6 @@ int
 tape_std_assign(struct tape_device *device)
 {
 	int                  rc;
-	struct timer_list    timeout;
 	struct tape_request *request;
 
 	request = tape_alloc_request(2, 11);
@@ -70,7 +69,7 @@ tape_std_assign(struct tape_device *device)
 	 * So we set up a timeout for this call.
 	 */
 	timer_setup(&request->timer, tape_std_assign_timeout, 0);
-	mod_timer(&timeout, jiffies + 2 * HZ);
+	mod_timer(&request->timer, jiffies + msecs_to_jiffies(2000));
 
 	rc = tape_do_io_interruptible(device, request);
 
-- 
GitLab


From c9ca9669dec322335da6f6ce0c6da7c48391f032 Mon Sep 17 00:00:00 2001
From: Harald Freudenberger <freude@linux.ibm.com>
Date: Thu, 14 Oct 2021 09:58:24 +0200
Subject: [PATCH 1477/4878] s390/ap: Fix hanging ioctl caused by orphaned
 replies

commit 3826350e6dd435e244eb6e47abad5a47c169ebc2 upstream.

When a queue is switched to soft offline during heavy load and later
switched to soft online again and now used, it may be that the caller
is blocked forever in the ioctl call.

The failure occurs because there is a pending reply after the queue(s)
have been switched to offline. This orphaned reply is received when
the queue is switched to online and is accidentally counted for the
outstanding replies. So when there was a valid outstanding reply and
this orphaned reply is received it counts as the outstanding one thus
dropping the outstanding counter to 0. Voila, with this counter the
receive function is not called any more and the real outstanding reply
is never received (until another request comes in...) and the ioctl
blocks.

The fix is simple. However, instead of readjusting the counter when an
orphaned reply is detected, I check the queue status for not empty and
compare this to the outstanding counter. So if the queue is not empty
then the counter must not drop to 0 but at least have a value of 1.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/crypto/ap_queue.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index 639f8d25679c3..ff0018f5bbe5e 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -142,6 +142,8 @@ static struct ap_queue_status ap_sm_recv(struct ap_queue *aq)
 	switch (status.response_code) {
 	case AP_RESPONSE_NORMAL:
 		aq->queue_count = max_t(int, 0, aq->queue_count - 1);
+		if (!status.queue_empty && !aq->queue_count)
+			aq->queue_count++;
 		if (aq->queue_count > 0)
 			mod_timer(&aq->timeout,
 				  jiffies + aq->request_timeout);
-- 
GitLab


From 1f420818dfca148afbb87abd556357c7a142ebb2 Mon Sep 17 00:00:00 2001
From: Halil Pasic <pasic@linux.ibm.com>
Date: Wed, 8 Sep 2021 17:36:23 +0200
Subject: [PATCH 1478/4878] s390/cio: make ccw_device_dma_* more robust

commit ad9a14517263a16af040598c7920c09ca9670a31 upstream.

Since commit 48720ba56891 ("virtio/s390: use DMA memory for ccw I/O and
classic notifiers") we were supposed to make sure that
virtio_ccw_release_dev() completes before the ccw device and the
attached dma pool are torn down, but unfortunately we did not.  Before
that commit it used to be OK to delay cleaning up the memory allocated
by virtio-ccw indefinitely (which isn't really intuitive for guys used
to destruction happens in reverse construction order), but now we
trigger a BUG_ON if the genpool is destroyed before all memory allocated
from it is deallocated. Which brings down the guest. We can observe this
problem, when unregister_virtio_device() does not give up the last
reference to the virtio_device (e.g. because a virtio-scsi attached scsi
disk got removed without previously unmounting its previously mounted
partition).

To make sure that the genpool is only destroyed after all the necessary
freeing is done let us take a reference on the ccw device on each
ccw_device_dma_zalloc() and give it up on each ccw_device_dma_free().

Actually there are multiple approaches to fixing the problem at hand
that can work. The upside of this one is that it is the safest one while
remaining simple. We don't crash the guest even if the driver does not
pair allocations and frees. The downside is the reference counting
overhead, that the reference counting for ccw devices becomes more
complex, in a sense that we need to pair the calls to the aforementioned
functions for it to be correct, and that if we happen to leak, we leak
more than necessary (the whole ccw device instead of just the genpool).

Some alternatives to this approach are taking a reference in
virtio_ccw_online() and giving it up in virtio_ccw_release_dev() or
making sure virtio_ccw_release_dev() completes its work before
virtio_ccw_remove() returns. The downside of these approaches is that
these are less safe against programming errors.

Cc: <stable@vger.kernel.org> # v5.3
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Fixes: 48720ba56891 ("virtio/s390: use DMA memory for ccw I/O and classic notifiers")
Reported-by: bfu@redhat.com
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/cio/device_ops.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 0fe7b2f2e7f52..c533d1dadc6bb 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -825,13 +825,23 @@ EXPORT_SYMBOL_GPL(ccw_device_get_chid);
  */
 void *ccw_device_dma_zalloc(struct ccw_device *cdev, size_t size)
 {
-	return cio_gp_dma_zalloc(cdev->private->dma_pool, &cdev->dev, size);
+	void *addr;
+
+	if (!get_device(&cdev->dev))
+		return NULL;
+	addr = cio_gp_dma_zalloc(cdev->private->dma_pool, &cdev->dev, size);
+	if (IS_ERR_OR_NULL(addr))
+		put_device(&cdev->dev);
+	return addr;
 }
 EXPORT_SYMBOL(ccw_device_dma_zalloc);
 
 void ccw_device_dma_free(struct ccw_device *cdev, void *cpu_addr, size_t size)
 {
+	if (!cpu_addr)
+		return;
 	cio_gp_dma_free(cdev->private->dma_pool, cpu_addr, size);
+	put_device(&cdev->dev);
 }
 EXPORT_SYMBOL(ccw_device_dma_free);
 
-- 
GitLab


From cbc55cf4a35867c158b03dd09fa9001c528a8d85 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:40 +0200
Subject: [PATCH 1479/4878] mtd: rawnand: ams-delta: Keep the driver compatible
 with on-die ECC engines

commit d707bb74daae07879e0fc1b4b960f8f2d0a5fe5d upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: 59d93473323a ("mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-2-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/ams-delta.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c
index ff1697f899ba6..13de39aa3288f 100644
--- a/drivers/mtd/nand/raw/ams-delta.c
+++ b/drivers/mtd/nand/raw/ams-delta.c
@@ -217,9 +217,8 @@ static int gpio_nand_setup_interface(struct nand_chip *this, int csline,
 
 static int gpio_nand_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -370,6 +369,13 @@ static int gpio_nand_probe(struct platform_device *pdev)
 	/* Release write protection */
 	gpiod_set_value(priv->gpiod_nwp, 0);
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	this->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	/* Scan to find existence of the device */
 	err = nand_scan(this, 1);
 	if (err)
-- 
GitLab


From 9b366f5221d8aa64b22f35be137a5749326444ce Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:48 +0200
Subject: [PATCH 1480/4878] mtd: rawnand: xway: Keep the driver compatible with
 on-die ECC engines

commit 6bcd2960af1b7bacb2f1e710ab0c0b802d900501 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: d525914b5bd8 ("mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Cc: Jan Hoffmann <jan@3e8.eu>
Cc: Kestrel seventyfour <kestrelseventyfour@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Jan Hoffmann <jan@3e8.eu>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-10-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/xway_nand.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/xway_nand.c b/drivers/mtd/nand/raw/xway_nand.c
index 26751976e5026..236fd8c5a958f 100644
--- a/drivers/mtd/nand/raw/xway_nand.c
+++ b/drivers/mtd/nand/raw/xway_nand.c
@@ -148,9 +148,8 @@ static void xway_write_buf(struct nand_chip *chip, const u_char *buf, int len)
 
 static int xway_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -219,6 +218,13 @@ static int xway_nand_probe(struct platform_device *pdev)
 		    | NAND_CON_SE_P | NAND_CON_WP_P | NAND_CON_PRE_P
 		    | cs_flag, EBU_NAND_CON);
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	data->chip.ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	/* Scan to find existence of the device */
 	err = nand_scan(&data->chip, 1);
 	if (err)
-- 
GitLab


From 13566bc111ee900a7c64733b526ca318d52d1e63 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:43 +0200
Subject: [PATCH 1481/4878] mtd: rawnand: mpc5121: Keep the driver compatible
 with on-die ECC engines

commit f9d8570b7fd6f4f08528ce2f5e39787a8a260cd6 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: 6dd09f775b72 ("mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-5-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/mpc5121_nfc.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/mpc5121_nfc.c b/drivers/mtd/nand/raw/mpc5121_nfc.c
index bcd4a556c959c..cb293c50acb87 100644
--- a/drivers/mtd/nand/raw/mpc5121_nfc.c
+++ b/drivers/mtd/nand/raw/mpc5121_nfc.c
@@ -605,9 +605,8 @@ static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd)
 
 static int mpc5121_nfc_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -772,6 +771,13 @@ static int mpc5121_nfc_probe(struct platform_device *op)
 		goto error;
 	}
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	/* Detect NAND chips */
 	retval = nand_scan(chip, be32_to_cpup(chips_no));
 	if (retval) {
-- 
GitLab


From 963db3ccc15bbb23cf4218cf377f258b76844a2c Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:42 +0200
Subject: [PATCH 1482/4878] mtd: rawnand: gpio: Keep the driver compatible with
 on-die ECC engines

commit b5b5b4dc6fcd8194b9dd38c8acdc5ab71adf44f8 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: f6341f6448e0 ("mtd: rawnand: gpio: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-4-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/gpio.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/gpio.c b/drivers/mtd/nand/raw/gpio.c
index fb7a086de35e5..fdf073d2e1b6c 100644
--- a/drivers/mtd/nand/raw/gpio.c
+++ b/drivers/mtd/nand/raw/gpio.c
@@ -163,9 +163,8 @@ static int gpio_nand_exec_op(struct nand_chip *chip,
 
 static int gpio_nand_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -365,6 +364,13 @@ static int gpio_nand_probe(struct platform_device *pdev)
 	if (gpiomtd->nwp && !IS_ERR(gpiomtd->nwp))
 		gpiod_direction_output(gpiomtd->nwp, 1);
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	ret = nand_scan(chip, 1);
 	if (ret)
 		goto err_wp;
-- 
GitLab


From b4e2e9fbd1949bca187acfa06bf4ea1f81658fff Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:45 +0200
Subject: [PATCH 1483/4878] mtd: rawnand: pasemi: Keep the driver compatible
 with on-die ECC engines

commit f16b7d2a5e810fcf4b15d096246d0d445da9cc88 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: 8fc6f1f042b2 ("mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-7-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/pasemi_nand.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/pasemi_nand.c b/drivers/mtd/nand/raw/pasemi_nand.c
index 68c08772d7c26..b0ba1fdbf5f2a 100644
--- a/drivers/mtd/nand/raw/pasemi_nand.c
+++ b/drivers/mtd/nand/raw/pasemi_nand.c
@@ -76,9 +76,8 @@ static int pasemi_device_ready(struct nand_chip *chip)
 
 static int pasemi_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -155,6 +154,13 @@ static int pasemi_nand_probe(struct platform_device *ofdev)
 	/* Enable the following for a flash based bad block table */
 	chip->bbt_options = NAND_BBT_USE_FLASH;
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	/* Scan to find existence of the device */
 	err = nand_scan(chip, 1);
 	if (err)
-- 
GitLab


From e1de04df8eb11087f8bd15e1d58e99dc25f82874 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:44 +0200
Subject: [PATCH 1484/4878] mtd: rawnand: orion: Keep the driver compatible
 with on-die ECC engines

commit 194ac63de6ff56d30c48e3ac19c8a412f9c1408e upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: 553508cec2e8 ("mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-6-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/orion_nand.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/orion_nand.c b/drivers/mtd/nand/raw/orion_nand.c
index 66211c9311d2f..2c87c7d892058 100644
--- a/drivers/mtd/nand/raw/orion_nand.c
+++ b/drivers/mtd/nand/raw/orion_nand.c
@@ -85,9 +85,8 @@ static void orion_nand_read_buf(struct nand_chip *chip, uint8_t *buf, int len)
 
 static int orion_nand_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -190,6 +189,13 @@ static int __init orion_nand_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	nc->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	ret = nand_scan(nc, 1);
 	if (ret)
 		goto no_dev;
-- 
GitLab


From 51e34fcf72a39fb02d9ad287716d3f0cdff5f1ce Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:46 +0200
Subject: [PATCH 1485/4878] mtd: rawnand: plat_nand: Keep the driver compatible
 with on-die ECC engines

commit 325fd539fc84f0aaa0ceb9d7d3b8718582473dc5 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: 612e048e6aab ("mtd: rawnand: plat_nand: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-8-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/plat_nand.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/plat_nand.c b/drivers/mtd/nand/raw/plat_nand.c
index 7711e1020c21c..0ee08c42cc35b 100644
--- a/drivers/mtd/nand/raw/plat_nand.c
+++ b/drivers/mtd/nand/raw/plat_nand.c
@@ -21,9 +21,8 @@ struct plat_nand_data {
 
 static int plat_nand_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -94,6 +93,13 @@ static int plat_nand_probe(struct platform_device *pdev)
 			goto out;
 	}
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	data->chip.ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	/* Scan to find existence of the device */
 	err = nand_scan(&data->chip, pdata->chip.nr_chips);
 	if (err)
-- 
GitLab


From 9dcdadd6cc73525e038b9621a6e9ee814dd63bda Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 29 Sep 2021 00:22:41 +0200
Subject: [PATCH 1486/4878] mtd: rawnand: au1550nd: Keep the driver compatible
 with on-die ECC engines

commit 7e3cdba176ba59eaf4d463d273da0718e3626140 upstream.

Following the introduction of the generic ECC engine infrastructure, it
was necessary to reorganize the code and move the ECC configuration in
the ->attach_chip() hook. Failing to do that properly lead to a first
series of fixes supposed to stabilize the situation. Unfortunately, this
only fixed the use of software ECC engines, preventing any other kind of
engine to be used, including on-die ones.

It is now time to (finally) fix the situation by ensuring that we still
provide a default (eg. software ECC) but will still support different
ECC engines such as on-die ECC engines if properly described in the
device tree.

There are no changes needed on the core side in order to do this, but we
just need to leverage the logic there which allows:
1- a subsystem default (set to Host engines in the raw NAND world)
2- a driver specific default (here set to software ECC engines)
3- any type of engine requested by the user (ie. described in the DT)

As the raw NAND subsystem has not yet been fully converted to the ECC
engine infrastructure, in order to provide a default ECC engine for this
driver we need to set chip->ecc.engine_type *before* calling
nand_scan(). During the initialization step, the core will consider this
entry as the default engine for this driver. This value may of course
be overloaded by the user if the usual DT properties are provided.

Fixes: dbffc8ccdf3a ("mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210928222258.199726-3-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/au1550nd.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/au1550nd.c b/drivers/mtd/nand/raw/au1550nd.c
index 7b6b354f2d398..48901a1b8bf52 100644
--- a/drivers/mtd/nand/raw/au1550nd.c
+++ b/drivers/mtd/nand/raw/au1550nd.c
@@ -238,9 +238,8 @@ static int au1550nd_exec_op(struct nand_chip *this,
 
 static int au1550nd_attach_chip(struct nand_chip *chip)
 {
-	chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
-
-	if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+	if (chip->ecc.engine_type == NAND_ECC_ENGINE_TYPE_SOFT &&
+	    chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
 		chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
 
 	return 0;
@@ -309,6 +308,13 @@ static int au1550nd_probe(struct platform_device *pdev)
 	if (pd->devwidth)
 		this->options |= NAND_BUSWIDTH_16;
 
+	/*
+	 * This driver assumes that the default ECC engine should be TYPE_SOFT.
+	 * Set ->engine_type before registering the NAND devices in order to
+	 * provide a driver specific default value.
+	 */
+	this->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
+
 	ret = nand_scan(this, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "NAND scan failed with %d\n", ret);
-- 
GitLab


From 77d543e687952581e81fe07fe17b7bafa7773f5c Mon Sep 17 00:00:00 2001
From: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Date: Thu, 28 Oct 2021 22:27:16 +0530
Subject: [PATCH 1487/4878] powerpc/powernv/prd: Unregister OPAL_MSG_PRD2
 notifier during module unload

commit 52862ab33c5d97490f3fa345d6529829e6d6637b upstream.

Commit 587164cd, introduced new opal message type (OPAL_MSG_PRD2) and
added opal notifier. But I missed to unregister the notifier during
module unload path. This results in below call trace if you try to
unload and load opal_prd module.

Also add new notifier_block for OPAL_MSG_PRD2 message.

Sample calltrace (modprobe -r opal_prd; modprobe opal_prd)
  BUG: Unable to handle kernel data access on read at 0xc0080000192200e0
  Faulting instruction address: 0xc00000000018d1cc
  Oops: Kernel access of bad area, sig: 11 [#1]
  LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV
  CPU: 66 PID: 7446 Comm: modprobe Kdump: loaded Tainted: G            E     5.14.0prd #759
  NIP:  c00000000018d1cc LR: c00000000018d2a8 CTR: c0000000000cde10
  REGS: c0000003c4c0f0a0 TRAP: 0300   Tainted: G            E      (5.14.0prd)
  MSR:  9000000002009033 <SF,HV,VEC,EE,ME,IR,DR,RI,LE>  CR: 24224824  XER: 20040000
  CFAR: c00000000018d2a4 DAR: c0080000192200e0 DSISR: 40000000 IRQMASK: 1
  ...
  NIP notifier_chain_register+0x2c/0xc0
  LR  atomic_notifier_chain_register+0x48/0x80
  Call Trace:
    0xc000000002090610 (unreliable)
    atomic_notifier_chain_register+0x58/0x80
    opal_message_notifier_register+0x7c/0x1e0
    opal_prd_probe+0x84/0x150 [opal_prd]
    platform_probe+0x78/0x130
    really_probe+0x110/0x5d0
    __driver_probe_device+0x17c/0x230
    driver_probe_device+0x60/0x130
    __driver_attach+0xfc/0x220
    bus_for_each_dev+0xa8/0x130
    driver_attach+0x34/0x50
    bus_add_driver+0x1b0/0x300
    driver_register+0x98/0x1a0
    __platform_driver_register+0x38/0x50
    opal_prd_driver_init+0x34/0x50 [opal_prd]
    do_one_initcall+0x60/0x2d0
    do_init_module+0x7c/0x320
    load_module+0x3394/0x3650
    __do_sys_finit_module+0xd4/0x160
    system_call_exception+0x140/0x290
    system_call_common+0xf4/0x258

Fixes: 587164cd593c ("powerpc/powernv: Add new opal message type")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211028165716.41300-1-hegdevasant@linux.vnet.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/platforms/powernv/opal-prd.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c
index deddaebf8c14f..17a2874d12561 100644
--- a/arch/powerpc/platforms/powernv/opal-prd.c
+++ b/arch/powerpc/platforms/powernv/opal-prd.c
@@ -372,6 +372,12 @@ static struct notifier_block opal_prd_event_nb = {
 	.priority	= 0,
 };
 
+static struct notifier_block opal_prd_event_nb2 = {
+	.notifier_call	= opal_prd_msg_notifier,
+	.next		= NULL,
+	.priority	= 0,
+};
+
 static int opal_prd_probe(struct platform_device *pdev)
 {
 	int rc;
@@ -393,9 +399,10 @@ static int opal_prd_probe(struct platform_device *pdev)
 		return rc;
 	}
 
-	rc = opal_message_notifier_register(OPAL_MSG_PRD2, &opal_prd_event_nb);
+	rc = opal_message_notifier_register(OPAL_MSG_PRD2, &opal_prd_event_nb2);
 	if (rc) {
 		pr_err("Couldn't register PRD2 event notifier\n");
+		opal_message_notifier_unregister(OPAL_MSG_PRD, &opal_prd_event_nb);
 		return rc;
 	}
 
@@ -404,6 +411,8 @@ static int opal_prd_probe(struct platform_device *pdev)
 		pr_err("failed to register miscdev\n");
 		opal_message_notifier_unregister(OPAL_MSG_PRD,
 				&opal_prd_event_nb);
+		opal_message_notifier_unregister(OPAL_MSG_PRD2,
+				&opal_prd_event_nb2);
 		return rc;
 	}
 
@@ -414,6 +423,7 @@ static int opal_prd_remove(struct platform_device *pdev)
 {
 	misc_deregister(&opal_prd_dev);
 	opal_message_notifier_unregister(OPAL_MSG_PRD, &opal_prd_event_nb);
+	opal_message_notifier_unregister(OPAL_MSG_PRD2, &opal_prd_event_nb2);
 	return 0;
 }
 
-- 
GitLab


From 1023355234ca441c7296a58e762b420eef88884e Mon Sep 17 00:00:00 2001
From: Xiaoming Ni <nixiaoming@huawei.com>
Date: Wed, 29 Sep 2021 11:36:46 +0800
Subject: [PATCH 1488/4878] powerpc/85xx: fix timebase sync issue when
 CONFIG_HOTPLUG_CPU=n

commit c45361abb9185b1e172bd75eff51ad5f601ccae4 upstream.

When CONFIG_SMP=y, timebase synchronization is required when the second
kernel is started.

arch/powerpc/kernel/smp.c:
  int __cpu_up(unsigned int cpu, struct task_struct *tidle)
  {
  	...
  	if (smp_ops->give_timebase)
  		smp_ops->give_timebase();
  	...
  }

  void start_secondary(void *unused)
  {
  	...
  	if (smp_ops->take_timebase)
  		smp_ops->take_timebase();
  	...
  }

When CONFIG_HOTPLUG_CPU=n and CONFIG_KEXEC_CORE=n,
 smp_85xx_ops.give_timebase is NULL,
 smp_85xx_ops.take_timebase is NULL,
As a result, the timebase is not synchronized.

Timebase  synchronization does not depend on CONFIG_HOTPLUG_CPU.

Fixes: 56f1ba280719 ("powerpc/mpc85xx: refactor the PM operations")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210929033646.39630-3-nixiaoming@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/platforms/85xx/Makefile         |  4 +++-
 arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c |  4 ++++
 arch/powerpc/platforms/85xx/smp.c            | 12 ++++++------
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index d1dd0dca5ebf0..bd750edeb105b 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -3,7 +3,9 @@
 # Makefile for the PowerPC 85xx linux kernel.
 #
 obj-$(CONFIG_SMP) += smp.o
-obj-$(CONFIG_FSL_PMC)		  += mpc85xx_pm_ops.o
+ifneq ($(CONFIG_FSL_CORENET_RCPM),y)
+obj-$(CONFIG_SMP) += mpc85xx_pm_ops.o
+endif
 
 obj-y += common.o
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c b/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c
index ffa8a7a6a2db7..4a8af80011a6f 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c
@@ -17,6 +17,7 @@
 
 static struct ccsr_guts __iomem *guts;
 
+#ifdef CONFIG_FSL_PMC
 static void mpc85xx_irq_mask(int cpu)
 {
 
@@ -49,6 +50,7 @@ static void mpc85xx_cpu_up_prepare(int cpu)
 {
 
 }
+#endif
 
 static void mpc85xx_freeze_time_base(bool freeze)
 {
@@ -76,10 +78,12 @@ static const struct of_device_id mpc85xx_smp_guts_ids[] = {
 
 static const struct fsl_pm_ops mpc85xx_pm_ops = {
 	.freeze_time_base = mpc85xx_freeze_time_base,
+#ifdef CONFIG_FSL_PMC
 	.irq_mask = mpc85xx_irq_mask,
 	.irq_unmask = mpc85xx_irq_unmask,
 	.cpu_die = mpc85xx_cpu_die,
 	.cpu_up_prepare = mpc85xx_cpu_up_prepare,
+#endif
 };
 
 int __init mpc85xx_setup_pmc(void)
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index c6df294054fe9..83f4a6389a282 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -40,7 +40,6 @@ struct epapr_spin_table {
 	u32	pir;
 };
 
-#ifdef CONFIG_HOTPLUG_CPU
 static u64 timebase;
 static int tb_req;
 static int tb_valid;
@@ -112,6 +111,7 @@ static void mpc85xx_take_timebase(void)
 	local_irq_restore(flags);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
 static void smp_85xx_cpu_offline_self(void)
 {
 	unsigned int cpu = smp_processor_id();
@@ -495,21 +495,21 @@ void __init mpc85xx_smp_init(void)
 		smp_85xx_ops.probe = NULL;
 	}
 
-#ifdef CONFIG_HOTPLUG_CPU
 #ifdef CONFIG_FSL_CORENET_RCPM
+	/* Assign a value to qoriq_pm_ops on PPC_E500MC */
 	fsl_rcpm_init();
-#endif
-
-#ifdef CONFIG_FSL_PMC
+#else
+	/* Assign a value to qoriq_pm_ops on !PPC_E500MC */
 	mpc85xx_setup_pmc();
 #endif
 	if (qoriq_pm_ops) {
 		smp_85xx_ops.give_timebase = mpc85xx_give_timebase;
 		smp_85xx_ops.take_timebase = mpc85xx_take_timebase;
+#ifdef CONFIG_HOTPLUG_CPU
 		smp_85xx_ops.cpu_offline_self = smp_85xx_cpu_offline_self;
 		smp_85xx_ops.cpu_die = qoriq_cpu_kill;
-	}
 #endif
+	}
 	smp_ops = &smp_85xx_ops;
 
 #ifdef CONFIG_KEXEC_CORE
-- 
GitLab


From f3396f6d8345821578fafc953888df1b1df6d780 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Tue, 31 Aug 2021 20:48:19 +0200
Subject: [PATCH 1489/4878] drm/sun4i: Fix macros in sun8i_csc.h

commit c302c98da646409d657a473da202f10f417f3ff1 upstream.

Macros SUN8I_CSC_CTRL() and SUN8I_CSC_COEFF() don't follow usual
recommendation of having arguments enclosed in parenthesis. While that
didn't change anything for quite sometime, it actually become important
after CSC code rework with commit ea067aee45a8 ("drm/sun4i: de2/de3:
Remove redundant CSC matrices").

Without this fix, colours are completely off for supported YVU formats
on SoCs with DE2 (A64, H3, R40, etc.).

Fix the issue by enclosing macro arguments in parenthesis.

Cc: stable@vger.kernel.org # 5.12+
Fixes: 883029390550 ("drm/sun4i: Add DE2 CSC library")
Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210831184819.93670-1-jernej.skrabec@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/sun4i/sun8i_csc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_csc.h b/drivers/gpu/drm/sun4i/sun8i_csc.h
index a55a38ad849c1..022cafa6c06cb 100644
--- a/drivers/gpu/drm/sun4i/sun8i_csc.h
+++ b/drivers/gpu/drm/sun4i/sun8i_csc.h
@@ -16,8 +16,8 @@ struct sun8i_mixer;
 #define CCSC10_OFFSET 0xA0000
 #define CCSC11_OFFSET 0xF0000
 
-#define SUN8I_CSC_CTRL(base)		(base + 0x0)
-#define SUN8I_CSC_COEFF(base, i)	(base + 0x10 + 4 * i)
+#define SUN8I_CSC_CTRL(base)		((base) + 0x0)
+#define SUN8I_CSC_COEFF(base, i)	((base) + 0x10 + 4 * (i))
 
 #define SUN8I_CSC_CTRL_EN		BIT(0)
 
-- 
GitLab


From f967d120a5b51b8bda9e2ad030726f12925fd709 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:40 +0200
Subject: [PATCH 1490/4878] PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 460275f124fb072dca218a6b43b6370eebbab20d upstream.

Define a macro PCI_EXP_DEVCTL_PAYLOAD_* for every possible Max Payload
Size in linux/pci_regs.h, in the same style as PCI_EXP_DEVCTL_READRQ_*.

Link: https://lore.kernel.org/r/20211005180952.6812-2-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/pci_regs.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index a95d55f9f2576..142b184eca8b4 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -504,6 +504,12 @@
 #define  PCI_EXP_DEVCTL_URRE	0x0008	/* Unsupported Request Reporting En. */
 #define  PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
 #define  PCI_EXP_DEVCTL_PAYLOAD	0x00e0	/* Max_Payload_Size */
+#define  PCI_EXP_DEVCTL_PAYLOAD_128B 0x0000 /* 128 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_256B 0x0020 /* 256 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_512B 0x0040 /* 512 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_1024B 0x0060 /* 1024 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_2048B 0x0080 /* 2048 Bytes */
+#define  PCI_EXP_DEVCTL_PAYLOAD_4096B 0x00a0 /* 4096 Bytes */
 #define  PCI_EXP_DEVCTL_EXT_TAG	0x0100	/* Extended Tag Field Enable */
 #define  PCI_EXP_DEVCTL_PHANTOM	0x0200	/* Phantom Functions Enable */
 #define  PCI_EXP_DEVCTL_AUX_PME	0x0400	/* Auxiliary Power PM Enable */
-- 
GitLab


From c7a440cd30798042f3346cbb3b3a056df638f66c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:41 +0200
Subject: [PATCH 1491/4878] PCI: aardvark: Fix PCIe Max Payload Size setting
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit a4e17d65dafdd3513042d8f00404c9b6068a825c upstream.

Change PCIe Max Payload Size setting in PCIe Device Control register to 512
bytes to align with PCIe Link Initialization sequence as defined in Marvell
Armada 3700 Functional Specification. According to the specification,
maximal Max Payload Size supported by this device is 512 bytes.

Without this kernel prints suspicious line:

    pci 0000:01:00.0: Upstream bridge's Max Payload Size set to 256 (was 16384, max 512)

With this change it changes to:

    pci 0000:01:00.0: Upstream bridge's Max Payload Size set to 256 (was 512, max 512)

Link: https://lore.kernel.org/r/20211005180952.6812-3-kabel@kernel.org
Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 5b34dea80885d..434522465d983 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -597,8 +597,9 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	reg = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + PCI_EXP_DEVCTL);
 	reg &= ~PCI_EXP_DEVCTL_RELAX_EN;
 	reg &= ~PCI_EXP_DEVCTL_NOSNOOP_EN;
+	reg &= ~PCI_EXP_DEVCTL_PAYLOAD;
 	reg &= ~PCI_EXP_DEVCTL_READRQ;
-	reg |= PCI_EXP_DEVCTL_PAYLOAD; /* Set max payload size */
+	reg |= PCI_EXP_DEVCTL_PAYLOAD_512B;
 	reg |= PCI_EXP_DEVCTL_READRQ_512B;
 	advk_writel(pcie, reg, PCIE_CORE_PCIEXP_CAP + PCI_EXP_DEVCTL);
 
-- 
GitLab


From d41f4d4dd7c8fc045859258abdc3fb453ab8c790 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Mon, 12 Jul 2021 09:52:59 -0400
Subject: [PATCH 1492/4878] SUNRPC: Partial revert of commit 6f9f17287e78

commit ea7a1019d8baf8503ecd6e3ec8436dec283569e6 upstream.

The premise of commit 6f9f17287e78 ("SUNRPC: Mitigate cond_resched() in
xprt_transmit()") was that cond_resched() is expensive and unnecessary
when there has been just a single send.
The point of cond_resched() is to ensure that tasks that should pre-empt
this one get a chance to do so when it is safe to do so. The code prior
to commit 6f9f17287e78 failed to take into account that it was keeping a
rpc_task pinned for longer than it needed to, and so rather than doing a
full revert, let's just move the cond_resched.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sunrpc/xprt.c | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 8201531ce5d97..04aaca4b8bf93 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1552,15 +1552,14 @@ xprt_transmit(struct rpc_task *task)
 {
 	struct rpc_rqst *next, *req = task->tk_rqstp;
 	struct rpc_xprt	*xprt = req->rq_xprt;
-	int counter, status;
+	int status;
 
 	spin_lock(&xprt->queue_lock);
-	counter = 0;
-	while (!list_empty(&xprt->xmit_queue)) {
-		if (++counter == 20)
+	for (;;) {
+		next = list_first_entry_or_null(&xprt->xmit_queue,
+						struct rpc_rqst, rq_xmit);
+		if (!next)
 			break;
-		next = list_first_entry(&xprt->xmit_queue,
-				struct rpc_rqst, rq_xmit);
 		xprt_pin_rqst(next);
 		spin_unlock(&xprt->queue_lock);
 		status = xprt_request_transmit(next, task);
@@ -1568,13 +1567,16 @@ xprt_transmit(struct rpc_task *task)
 			status = 0;
 		spin_lock(&xprt->queue_lock);
 		xprt_unpin_rqst(next);
-		if (status == 0) {
-			if (!xprt_request_data_received(task) ||
-			    test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate))
-				continue;
-		} else if (test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate))
-			task->tk_status = status;
-		break;
+		if (status < 0) {
+			if (test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate))
+				task->tk_status = status;
+			break;
+		}
+		/* Was @task transmitted, and has it received a reply? */
+		if (xprt_request_data_received(task) &&
+		    !test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate))
+			break;
+		cond_resched_lock(&xprt->queue_lock);
 	}
 	spin_unlock(&xprt->queue_lock);
 }
-- 
GitLab


From 188bf40391a5a296e91d40c6f83bd4f07a0a8559 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 20 Oct 2021 11:59:07 +0300
Subject: [PATCH 1493/4878] ath10k: fix invalid dma_addr_t token assignment

commit 937e79c67740d1d84736730d679f3cb2552f990e upstream.

Using a kernel pointer in place of a dma_addr_t token can
lead to undefined behavior if that makes it into cache
management functions. The compiler caught one such attempt
in a cast:

drivers/net/wireless/ath/ath10k/mac.c: In function 'ath10k_add_interface':
drivers/net/wireless/ath/ath10k/mac.c:5586:47: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
 5586 |                         arvif->beacon_paddr = (dma_addr_t)arvif->beacon_buf;
      |                                               ^

Looking through how this gets used down the way, I'm fairly
sure that beacon_paddr is never accessed again for ATH10K_DEV_TYPE_HL
devices, and if it was accessed, that would be a bug.

Change the assignment to use a known-invalid address token
instead, which avoids the warning and makes it easier to catch
bugs if it does end up getting used.

Fixes: e263bdab9c0e ("ath10k: high latency fixes for beacon buffer")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211014075153.3655910-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath10k/mac.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index c42977918e049..b59d482d9c23e 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -5473,7 +5473,15 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
 			arvif->beacon_buf = kmalloc(IEEE80211_MAX_FRAME_LEN,
 						    GFP_KERNEL);
-			arvif->beacon_paddr = (dma_addr_t)arvif->beacon_buf;
+
+			/* Using a kernel pointer in place of a dma_addr_t
+			 * token can lead to undefined behavior if that
+			 * makes it into cache management functions. Use a
+			 * known-invalid address token instead, which
+			 * avoids the warning and makes it easier to catch
+			 * bugs if it does end up getting used.
+			 */
+			arvif->beacon_paddr = DMA_MAPPING_ERROR;
 		} else {
 			arvif->beacon_buf =
 				dma_alloc_coherent(ar->dev,
-- 
GitLab


From 1e7340950dc22687e5f7741a1dcf1a2d3fee062a Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 13 Oct 2021 11:00:52 +0100
Subject: [PATCH 1494/4878] mmc: moxart: Fix null pointer dereference on
 pointer host

commit 0eab756f8821d255016c63bb55804c429ff4bdb1 upstream.

There are several error return paths that dereference the null pointer
host because the pointer has not yet been set to a valid value.
Fix this by adding a new out_mmc label and exiting via this label
to avoid the host clean up and hence the null pointer dereference.

Addresses-Coverity: ("Explicit null dereference")
Fixes: 8105c2abbf36 ("mmc: moxart: Fix reference count leaks in moxart_probe")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20211013100052.125461-1-colin.king@canonical.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/moxart-mmc.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index dcd128ecdf15b..7697068ad9695 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -569,37 +569,37 @@ static int moxart_probe(struct platform_device *pdev)
 	if (!mmc) {
 		dev_err(dev, "mmc_alloc_host failed\n");
 		ret = -ENOMEM;
-		goto out;
+		goto out_mmc;
 	}
 
 	ret = of_address_to_resource(node, 0, &res_mmc);
 	if (ret) {
 		dev_err(dev, "of_address_to_resource failed\n");
-		goto out;
+		goto out_mmc;
 	}
 
 	irq = irq_of_parse_and_map(node, 0);
 	if (irq <= 0) {
 		dev_err(dev, "irq_of_parse_and_map failed\n");
 		ret = -EINVAL;
-		goto out;
+		goto out_mmc;
 	}
 
 	clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(clk)) {
 		ret = PTR_ERR(clk);
-		goto out;
+		goto out_mmc;
 	}
 
 	reg_mmc = devm_ioremap_resource(dev, &res_mmc);
 	if (IS_ERR(reg_mmc)) {
 		ret = PTR_ERR(reg_mmc);
-		goto out;
+		goto out_mmc;
 	}
 
 	ret = mmc_of_parse(mmc);
 	if (ret)
-		goto out;
+		goto out_mmc;
 
 	host = mmc_priv(mmc);
 	host->mmc = mmc;
@@ -690,6 +690,7 @@ out:
 		dma_release_channel(host->dma_chan_tx);
 	if (!IS_ERR_OR_NULL(host->dma_chan_rx))
 		dma_release_channel(host->dma_chan_rx);
+out_mmc:
 	if (mmc)
 		mmc_free_host(mmc);
 	return ret;
-- 
GitLab


From 5be42b203f2c4b72205b4ecd72c0558dfdb3a552 Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Mon, 1 Nov 2021 16:01:18 -0700
Subject: [PATCH 1495/4878] selftests/bpf: Fix also no-alu32 strobemeta
 selftest

commit a20eac0af02810669e187cb623bc904908c423af upstream.

Previous fix aded bpf_clamp_umax() helper use to re-validate boundaries.
While that works correctly, it introduces more branches, which blows up
past 1 million instructions in no-alu32 variant of strobemeta selftests.

Switching len variable from u32 to u64 also fixes the issue and reduces
the number of validated instructions, so use that instead. Fix this
patch and bpf_clamp_umax() removed, both alu32 and no-alu32 selftests
pass.

Fixes: 0133c20480b1 ("selftests/bpf: Fix strobemeta selftest regression")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211101230118.1273019-1-andrii@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/bpf/progs/strobemeta.h | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/strobemeta.h b/tools/testing/selftests/bpf/progs/strobemeta.h
index 3687ea755ab5a..60c93aee2f4ad 100644
--- a/tools/testing/selftests/bpf/progs/strobemeta.h
+++ b/tools/testing/selftests/bpf/progs/strobemeta.h
@@ -10,14 +10,6 @@
 #include <linux/types.h>
 #include <bpf/bpf_helpers.h>
 
-#define bpf_clamp_umax(VAR, UMAX)					\
-	asm volatile (							\
-		"if %0 <= %[max] goto +1\n"				\
-		"%0 = %[max]\n"						\
-		: "+r"(VAR)						\
-		: [max]"i"(UMAX)					\
-	)
-
 typedef uint32_t pid_t;
 struct task_struct {};
 
@@ -366,7 +358,7 @@ static __always_inline uint64_t read_str_var(struct strobemeta_cfg *cfg,
 					     void *payload)
 {
 	void *location;
-	uint32_t len;
+	uint64_t len;
 
 	data->str_lens[idx] = 0;
 	location = calc_location(&cfg->str_locs[idx], tls_base);
@@ -398,7 +390,7 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 	struct strobe_map_descr* descr = &data->map_descrs[idx];
 	struct strobe_map_raw map;
 	void *location;
-	uint32_t len;
+	uint64_t len;
 	int i;
 
 	descr->tag_len = 0; /* presume no tag is set */
@@ -421,7 +413,6 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 
 	len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN, map.tag);
 	if (len <= STROBE_MAX_STR_LEN) {
-		bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
 		descr->tag_len = len;
 		payload += len;
 	}
@@ -439,7 +430,6 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 		len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN,
 					      map.entries[i].key);
 		if (len <= STROBE_MAX_STR_LEN) {
-			bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
 			descr->key_lens[i] = len;
 			payload += len;
 		}
@@ -447,7 +437,6 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
 		len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN,
 					      map.entries[i].val);
 		if (len <= STROBE_MAX_STR_LEN) {
-			bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
 			descr->val_lens[i] = len;
 			payload += len;
 		}
-- 
GitLab


From 74ba917cfdddbb6b1ad9c2fc4833bf1f810b27f9 Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Wed, 8 Sep 2021 17:58:33 -0500
Subject: [PATCH 1496/4878] arch/cc: Introduce a function to check for
 confidential computing features

commit 46b49b12f3fc5e1347dba37d4639e2165f447871 upstream.

In preparation for other confidential computing technologies, introduce
a generic helper function, cc_platform_has(), that can be used to
check for specific active confidential computing attributes, like
memory encryption. This is intended to eliminate having to add multiple
technology-specific checks to the code (e.g. if (sev_active() ||
tdx_active() || ... ).

 [ bp: s/_CC_PLATFORM_H/_LINUX_CC_PLATFORM_H/g ]

Co-developed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Co-developed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210928191009.32551-3-bp@alien8.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/Kconfig                |  3 ++
 include/linux/cc_platform.h | 88 +++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 include/linux/cc_platform.h

diff --git a/arch/Kconfig b/arch/Kconfig
index 69fe7133c765d..632d60e13494c 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1026,6 +1026,9 @@ config RELR
 config ARCH_HAS_MEM_ENCRYPT
 	bool
 
+config ARCH_HAS_CC_PLATFORM
+	bool
+
 config HAVE_SPARSE_SYSCALL_NR
        bool
        help
diff --git a/include/linux/cc_platform.h b/include/linux/cc_platform.h
new file mode 100644
index 0000000000000..a075b70b9a70c
--- /dev/null
+++ b/include/linux/cc_platform.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Confidential Computing Platform Capability checks
+ *
+ * Copyright (C) 2021 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ */
+
+#ifndef _LINUX_CC_PLATFORM_H
+#define _LINUX_CC_PLATFORM_H
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+
+/**
+ * enum cc_attr - Confidential computing attributes
+ *
+ * These attributes represent confidential computing features that are
+ * currently active.
+ */
+enum cc_attr {
+	/**
+	 * @CC_ATTR_MEM_ENCRYPT: Memory encryption is active
+	 *
+	 * The platform/OS is running with active memory encryption. This
+	 * includes running either as a bare-metal system or a hypervisor
+	 * and actively using memory encryption or as a guest/virtual machine
+	 * and actively using memory encryption.
+	 *
+	 * Examples include SME, SEV and SEV-ES.
+	 */
+	CC_ATTR_MEM_ENCRYPT,
+
+	/**
+	 * @CC_ATTR_HOST_MEM_ENCRYPT: Host memory encryption is active
+	 *
+	 * The platform/OS is running as a bare-metal system or a hypervisor
+	 * and actively using memory encryption.
+	 *
+	 * Examples include SME.
+	 */
+	CC_ATTR_HOST_MEM_ENCRYPT,
+
+	/**
+	 * @CC_ATTR_GUEST_MEM_ENCRYPT: Guest memory encryption is active
+	 *
+	 * The platform/OS is running as a guest/virtual machine and actively
+	 * using memory encryption.
+	 *
+	 * Examples include SEV and SEV-ES.
+	 */
+	CC_ATTR_GUEST_MEM_ENCRYPT,
+
+	/**
+	 * @CC_ATTR_GUEST_STATE_ENCRYPT: Guest state encryption is active
+	 *
+	 * The platform/OS is running as a guest/virtual machine and actively
+	 * using memory encryption and register state encryption.
+	 *
+	 * Examples include SEV-ES.
+	 */
+	CC_ATTR_GUEST_STATE_ENCRYPT,
+};
+
+#ifdef CONFIG_ARCH_HAS_CC_PLATFORM
+
+/**
+ * cc_platform_has() - Checks if the specified cc_attr attribute is active
+ * @attr: Confidential computing attribute to check
+ *
+ * The cc_platform_has() function will return an indicator as to whether the
+ * specified Confidential Computing attribute is currently active.
+ *
+ * Context: Any context
+ * Return:
+ * * TRUE  - Specified Confidential Computing attribute is active
+ * * FALSE - Specified Confidential Computing attribute is not active
+ */
+bool cc_platform_has(enum cc_attr attr);
+
+#else	/* !CONFIG_ARCH_HAS_CC_PLATFORM */
+
+static inline bool cc_platform_has(enum cc_attr attr) { return false; }
+
+#endif	/* CONFIG_ARCH_HAS_CC_PLATFORM */
+
+#endif	/* _LINUX_CC_PLATFORM_H */
-- 
GitLab


From fc25889a6617559aa1ba904d1c0873541d3c85bf Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Wed, 8 Sep 2021 17:58:34 -0500
Subject: [PATCH 1497/4878] x86/sev: Add an x86 version of cc_platform_has()

commit aa5a461171f98fde0df78c4f6b5018a1e967cf81 upstream.

Introduce an x86 version of the cc_platform_has() function. This will be
used to replace vendor specific calls like sme_active(), sev_active(),
etc.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210928191009.32551-4-bp@alien8.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/Kconfig                   |  1 +
 arch/x86/include/asm/mem_encrypt.h |  1 +
 arch/x86/kernel/Makefile           |  6 +++
 arch/x86/kernel/cc_platform.c      | 69 ++++++++++++++++++++++++++++++
 arch/x86/mm/mem_encrypt.c          |  1 +
 5 files changed, 78 insertions(+)
 create mode 100644 arch/x86/kernel/cc_platform.c

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c3d9f56c90186..2b5957b27a3d6 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1527,6 +1527,7 @@ config AMD_MEM_ENCRYPT
 	select ARCH_USE_MEMREMAP_PROT
 	select ARCH_HAS_FORCE_DMA_UNENCRYPTED
 	select INSTRUCTION_DECODER
+	select ARCH_HAS_CC_PLATFORM
 	help
 	  Say yes to enable support for the encryption of system memory.
 	  This requires an AMD processor that supports Secure Memory
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
index 2f62bbdd9d12f..8f3fa55d43ce7 100644
--- a/arch/x86/include/asm/mem_encrypt.h
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -13,6 +13,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/init.h>
+#include <linux/cc_platform.h>
 
 #include <asm/bootparam.h>
 
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 68608bd892c0d..c06f3a961d647 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -21,6 +21,7 @@ CFLAGS_REMOVE_ftrace.o = -pg
 CFLAGS_REMOVE_early_printk.o = -pg
 CFLAGS_REMOVE_head64.o = -pg
 CFLAGS_REMOVE_sev-es.o = -pg
+CFLAGS_REMOVE_cc_platform.o = -pg
 endif
 
 KASAN_SANITIZE_head$(BITS).o				:= n
@@ -29,6 +30,7 @@ KASAN_SANITIZE_dumpstack_$(BITS).o			:= n
 KASAN_SANITIZE_stacktrace.o				:= n
 KASAN_SANITIZE_paravirt.o				:= n
 KASAN_SANITIZE_sev-es.o					:= n
+KASAN_SANITIZE_cc_platform.o				:= n
 
 # With some compiler versions the generated code results in boot hangs, caused
 # by several compilation units. To be safe, disable all instrumentation.
@@ -48,6 +50,7 @@ endif
 KCOV_INSTRUMENT		:= n
 
 CFLAGS_head$(BITS).o	+= -fno-stack-protector
+CFLAGS_cc_platform.o	+= -fno-stack-protector
 
 CFLAGS_irq.o := -I $(srctree)/$(src)/../include/asm/trace
 
@@ -151,6 +154,9 @@ obj-$(CONFIG_UNWINDER_FRAME_POINTER)	+= unwind_frame.o
 obj-$(CONFIG_UNWINDER_GUESS)		+= unwind_guess.o
 
 obj-$(CONFIG_AMD_MEM_ENCRYPT)		+= sev-es.o
+
+obj-$(CONFIG_ARCH_HAS_CC_PLATFORM)	+= cc_platform.o
+
 ###
 # 64 bit specific files
 ifeq ($(CONFIG_X86_64),y)
diff --git a/arch/x86/kernel/cc_platform.c b/arch/x86/kernel/cc_platform.c
new file mode 100644
index 0000000000000..03bb2f343ddb7
--- /dev/null
+++ b/arch/x86/kernel/cc_platform.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Confidential Computing Platform Capability checks
+ *
+ * Copyright (C) 2021 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ */
+
+#include <linux/export.h>
+#include <linux/cc_platform.h>
+#include <linux/mem_encrypt.h>
+
+#include <asm/processor.h>
+
+static bool __maybe_unused intel_cc_platform_has(enum cc_attr attr)
+{
+#ifdef CONFIG_INTEL_TDX_GUEST
+	return false;
+#else
+	return false;
+#endif
+}
+
+/*
+ * SME and SEV are very similar but they are not the same, so there are
+ * times that the kernel will need to distinguish between SME and SEV. The
+ * cc_platform_has() function is used for this.  When a distinction isn't
+ * needed, the CC_ATTR_MEM_ENCRYPT attribute can be used.
+ *
+ * The trampoline code is a good example for this requirement.  Before
+ * paging is activated, SME will access all memory as decrypted, but SEV
+ * will access all memory as encrypted.  So, when APs are being brought
+ * up under SME the trampoline area cannot be encrypted, whereas under SEV
+ * the trampoline area must be encrypted.
+ */
+static bool amd_cc_platform_has(enum cc_attr attr)
+{
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+	switch (attr) {
+	case CC_ATTR_MEM_ENCRYPT:
+		return sme_me_mask;
+
+	case CC_ATTR_HOST_MEM_ENCRYPT:
+		return sme_me_mask && !(sev_status & MSR_AMD64_SEV_ENABLED);
+
+	case CC_ATTR_GUEST_MEM_ENCRYPT:
+		return sev_status & MSR_AMD64_SEV_ENABLED;
+
+	case CC_ATTR_GUEST_STATE_ENCRYPT:
+		return sev_status & MSR_AMD64_SEV_ES_ENABLED;
+
+	default:
+		return false;
+	}
+#else
+	return false;
+#endif
+}
+
+
+bool cc_platform_has(enum cc_attr attr)
+{
+	if (sme_me_mask)
+		return amd_cc_platform_has(attr);
+
+	return false;
+}
+EXPORT_SYMBOL_GPL(cc_platform_has);
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index cc85e199108eb..97f7eb5d15c2f 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/bitops.h>
 #include <linux/dma-mapping.h>
+#include <linux/cc_platform.h>
 
 #include <asm/tlbflush.h>
 #include <asm/fixmap.h>
-- 
GitLab


From 45490bfa1ebb7dd8c7f9e77d72e5d006c1162219 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Fri, 1 Oct 2021 21:41:20 +0200
Subject: [PATCH 1498/4878] x86/sev: Make the #VC exception stacks part of the
 default stacks storage

commit 541ac97186d9ea88491961a46284de3603c914fd upstream.

The size of the exception stacks was increased by the commit in Fixes,
resulting in stack sizes greater than a page in size. The #VC exception
handling was only mapping the first (bottom) page, resulting in an
SEV-ES guest failing to boot.

Make the #VC exception stacks part of the default exception stacks
storage and allocate them with a CONFIG_AMD_MEM_ENCRYPT=y .config. Map
them only when a SEV-ES guest has been detected.

Rip out the custom VC stacks mapping and storage code.

 [ bp: Steal and adapt Tom's commit message. ]

Fixes: 7fae4c24a2b8 ("x86: Increase exception stack sizes")
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Tested-by: Brijesh Singh <brijesh.singh@amd.com>
Link: https://lkml.kernel.org/r/YVt1IMjIs7pIZTRR@zn.tnic
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/cpu_entry_area.h |  8 ++++++-
 arch/x86/kernel/sev-es.c              | 32 ---------------------------
 arch/x86/mm/cpu_entry_area.c          |  7 ++++++
 3 files changed, 14 insertions(+), 33 deletions(-)

diff --git a/arch/x86/include/asm/cpu_entry_area.h b/arch/x86/include/asm/cpu_entry_area.h
index 3d52b094850a9..dd5ea1bdf04c5 100644
--- a/arch/x86/include/asm/cpu_entry_area.h
+++ b/arch/x86/include/asm/cpu_entry_area.h
@@ -10,6 +10,12 @@
 
 #ifdef CONFIG_X86_64
 
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+#define VC_EXCEPTION_STKSZ	EXCEPTION_STKSZ
+#else
+#define VC_EXCEPTION_STKSZ	0
+#endif
+
 /* Macro to enforce the same ordering and stack sizes */
 #define ESTACKS_MEMBERS(guardsize, optional_stack_size)		\
 	char	DF_stack_guard[guardsize];			\
@@ -28,7 +34,7 @@
 
 /* The exception stacks' physical storage. No guard pages required */
 struct exception_stacks {
-	ESTACKS_MEMBERS(0, 0)
+	ESTACKS_MEMBERS(0, VC_EXCEPTION_STKSZ)
 };
 
 /* The effective cpu entry area mapping with guard pages. */
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
index f3202b2e3c157..865e234ea24bd 100644
--- a/arch/x86/kernel/sev-es.c
+++ b/arch/x86/kernel/sev-es.c
@@ -46,16 +46,6 @@ static struct ghcb __initdata *boot_ghcb;
 struct sev_es_runtime_data {
 	struct ghcb ghcb_page;
 
-	/* Physical storage for the per-CPU IST stack of the #VC handler */
-	char ist_stack[EXCEPTION_STKSZ] __aligned(PAGE_SIZE);
-
-	/*
-	 * Physical storage for the per-CPU fall-back stack of the #VC handler.
-	 * The fall-back stack is used when it is not safe to switch back to the
-	 * interrupted stack in the #VC entry code.
-	 */
-	char fallback_stack[EXCEPTION_STKSZ] __aligned(PAGE_SIZE);
-
 	/*
 	 * Reserve one page per CPU as backup storage for the unencrypted GHCB.
 	 * It is needed when an NMI happens while the #VC handler uses the real
@@ -99,27 +89,6 @@ DEFINE_STATIC_KEY_FALSE(sev_es_enable_key);
 /* Needed in vc_early_forward_exception */
 void do_early_exception(struct pt_regs *regs, int trapnr);
 
-static void __init setup_vc_stacks(int cpu)
-{
-	struct sev_es_runtime_data *data;
-	struct cpu_entry_area *cea;
-	unsigned long vaddr;
-	phys_addr_t pa;
-
-	data = per_cpu(runtime_data, cpu);
-	cea  = get_cpu_entry_area(cpu);
-
-	/* Map #VC IST stack */
-	vaddr = CEA_ESTACK_BOT(&cea->estacks, VC);
-	pa    = __pa(data->ist_stack);
-	cea_set_pte((void *)vaddr, pa, PAGE_KERNEL);
-
-	/* Map VC fall-back stack */
-	vaddr = CEA_ESTACK_BOT(&cea->estacks, VC2);
-	pa    = __pa(data->fallback_stack);
-	cea_set_pte((void *)vaddr, pa, PAGE_KERNEL);
-}
-
 static __always_inline bool on_vc_stack(struct pt_regs *regs)
 {
 	unsigned long sp = regs->sp;
@@ -753,7 +722,6 @@ void __init sev_es_init_vc_handling(void)
 	for_each_possible_cpu(cpu) {
 		alloc_runtime_data(cpu);
 		init_ghcb(cpu);
-		setup_vc_stacks(cpu);
 	}
 
 	sev_es_setup_play_dead();
diff --git a/arch/x86/mm/cpu_entry_area.c b/arch/x86/mm/cpu_entry_area.c
index f5e1e60c9095f..6c2f1b76a0b61 100644
--- a/arch/x86/mm/cpu_entry_area.c
+++ b/arch/x86/mm/cpu_entry_area.c
@@ -110,6 +110,13 @@ static void __init percpu_setup_exception_stacks(unsigned int cpu)
 	cea_map_stack(NMI);
 	cea_map_stack(DB);
 	cea_map_stack(MCE);
+
+	if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT)) {
+		if (cc_platform_has(CC_ATTR_GUEST_STATE_ENCRYPT)) {
+			cea_map_stack(VC);
+			cea_map_stack(VC2);
+		}
+	}
 }
 #else
 static inline void percpu_setup_exception_stacks(unsigned int cpu)
-- 
GitLab


From 1e49a79bc312571093ba0dbd7f9df490c7afee22 Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <digetx@gmail.com>
Date: Tue, 2 Mar 2021 15:24:58 +0300
Subject: [PATCH 1499/4878] soc/tegra: pmc: Fix imbalanced clock disabling in
 error code path

commit 19221e3083020bd9537624caa0ee0145ed92ba36 upstream.

The tegra_powergate_power_up() has a typo in the error code path where it
will try to disable clocks twice, fix it. In practice that error never
happens, so this is a minor correction.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 and TK1 T124
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/tegra/pmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index 857354a69c39d..5726c232e61d5 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -693,7 +693,7 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg,
 
 	err = tegra_powergate_enable_clocks(pg);
 	if (err)
-		goto disable_clks;
+		goto powergate_off;
 
 	usleep_range(10, 20);
 
-- 
GitLab


From f884bb85b8d877d4e0c670403754813a7901705b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 18 Nov 2021 14:04:33 +0100
Subject: [PATCH 1500/4878] Linux 5.10.80

Link: https://lore.kernel.org/r/20211115165343.579890274@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Link: https://lore.kernel.org/r/20211116142545.607076484@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Link: https://lore.kernel.org/r/20211117101457.890809587@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Link: https://lore.kernel.org/r/20211117144602.341592498@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 756479b101f80..71fdc74801e0a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 79
+SUBLEVEL = 80
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 830a9ad7d89d66f6910b3eee1784c1268ce66706 Mon Sep 17 00:00:00 2001
From: Saravana Kannan <saravanak@google.com>
Date: Fri, 13 Aug 2021 19:31:30 -0700
Subject: [PATCH 1501/4878] BACKPORT: of: property: fw_devlink: Add support for
 "leds" and "backlight"

Allows tracking dependencies between leds/backlights devices and their
consumers.

Link: https://lore.kernel.org/all/20210814023132.2729731-2-saravanak@google.com
Signed-off-by: Saravana Kannan <saravanak@google.com>
(cherry picked from commit 18c585c7d742b8a207a4a932871dde1aa2a5b8fe)
Bug: 196400624
Signed-off-by: Ken Huang <kenbshuang@google.com>
Change-Id: I5efd7690f02c9fc375621d31558d82f343f5446f
Signed-off-by: Will McVicker <willmcvicker@google.com>
---
 drivers/of/property.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 78427c85bef38..797ac714f3862 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1260,6 +1260,8 @@ DEFINE_SIMPLE_PROP(pinctrl5, "pinctrl-5", NULL)
 DEFINE_SIMPLE_PROP(pinctrl6, "pinctrl-6", NULL)
 DEFINE_SIMPLE_PROP(pinctrl7, "pinctrl-7", NULL)
 DEFINE_SIMPLE_PROP(pinctrl8, "pinctrl-8", NULL)
+DEFINE_SIMPLE_PROP(leds, "leds", NULL)
+DEFINE_SIMPLE_PROP(backlight, "backlight", NULL)
 DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
 DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
 
@@ -1343,6 +1345,8 @@ static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_pinctrl6, },
 	{ .parse_prop = parse_pinctrl7, },
 	{ .parse_prop = parse_pinctrl8, },
+	{ .parse_prop = parse_leds, },
+	{ .parse_prop = parse_backlight, },
 	{ .parse_prop = parse_gpio_compat, },
 	{ .parse_prop = parse_interrupts, },
 	{ .parse_prop = parse_regulators, },
-- 
GitLab


From 0c5ea53ad92aa06dcbdb6cc78dd06a91f37ede60 Mon Sep 17 00:00:00 2001
From: Alistair Delva <adelva@google.com>
Date: Wed, 17 Nov 2021 09:58:10 -0800
Subject: [PATCH 1502/4878] ANDROID: setlocalversion: make KMI_GENERATION
 optional

GKI required the KMI_GENERATION to be added to the kernel version
string, but this only makes sense for GKI kernels, for non-GKI kernels
we don't need it. Leave all the other stuff we added, though, as it
seems useful.

Bug: 205897686
Change-Id: I2e7b3cb7ed5529f1e5e7c9d79a1f7ce4a1b6ee1f
Signed-off-by: Alistair Delva <adelva@google.com>
---
 scripts/setlocalversion | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index d3479a49dde20..2f51010f99930 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -41,8 +41,6 @@ if test $# -gt 0; then
 		kmi_generation=$1
 		[ $(expr $kmi_generation : '^[0-9]\+$') -eq 0 ] && usage
 		shift
-	else
-		usage
 	fi
 fi
 if test $# -gt 0 -o ! -d "$srctree"; then
@@ -68,6 +66,8 @@ scm_version()
 
 		if [ -n "$android_release" ] && [ -n "$kmi_generation" ]; then
 			printf '%s' "-$android_release-$kmi_generation"
+		elif [ -n "$android_release" ]; then
+			printf '%s' "-$android_release"
 		fi
 
 		# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
-- 
GitLab


From 0110ed3471b3a46c84ef6688e7e7d073d21e509e Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Wed, 17 Nov 2021 10:24:44 -0800
Subject: [PATCH 1503/4878] Revert "ANDROID: mm: Throttle rss_stat tracepoint"

This reverts commit 77dfeaa02dc3cea434aa19cf70537e0d3d3d9b8b.

Throttling can now be done using hist triggers and synthetic events

Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I39c284040e2fdb815cda980f3a40ef188e59287c
---
 include/linux/mm.h |  9 ++++-----
 mm/memory.c        | 16 ++--------------
 2 files changed, 6 insertions(+), 19 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index ff79e257a861e..bae145a4a09d2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2037,28 +2037,27 @@ static inline unsigned long get_mm_counter(struct mm_struct *mm, int member)
 	return (unsigned long)val;
 }
 
-void mm_trace_rss_stat(struct mm_struct *mm, int member, long count,
-		       long value);
+void mm_trace_rss_stat(struct mm_struct *mm, int member, long count);
 
 static inline void add_mm_counter(struct mm_struct *mm, int member, long value)
 {
 	long count = atomic_long_add_return(value, &mm->rss_stat.count[member]);
 
-	mm_trace_rss_stat(mm, member, count, value);
+	mm_trace_rss_stat(mm, member, count);
 }
 
 static inline void inc_mm_counter(struct mm_struct *mm, int member)
 {
 	long count = atomic_long_inc_return(&mm->rss_stat.count[member]);
 
-	mm_trace_rss_stat(mm, member, count, 1);
+	mm_trace_rss_stat(mm, member, count);
 }
 
 static inline void dec_mm_counter(struct mm_struct *mm, int member)
 {
 	long count = atomic_long_dec_return(&mm->rss_stat.count[member]);
 
-	mm_trace_rss_stat(mm, member, count, -1);
+	mm_trace_rss_stat(mm, member, count);
 }
 
 /* Optimized variant when page is already known not to be PageAnon */
diff --git a/mm/memory.c b/mm/memory.c
index e9845afdbf7fe..e329e752c78be 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -172,21 +172,9 @@ static int __init init_zero_pfn(void)
 }
 early_initcall(init_zero_pfn);
 
-/*
- * Only trace rss_stat when there is a 512kb cross over.
- * Smaller changes may be lost unless every small change is
- * crossing into or returning to a 512kb boundary.
- */
-#define TRACE_MM_COUNTER_THRESHOLD 128
-
-void mm_trace_rss_stat(struct mm_struct *mm, int member, long count,
-		       long value)
+void mm_trace_rss_stat(struct mm_struct *mm, int member, long count)
 {
-	long thresh_mask = ~(TRACE_MM_COUNTER_THRESHOLD - 1);
-
-	/* Threshold roll-over, trace it */
-	if ((count & thresh_mask) != ((count - value) & thresh_mask))
-		trace_rss_stat(mm, member, count);
+	trace_rss_stat(mm, member, count);
 }
 EXPORT_SYMBOL_GPL(mm_trace_rss_stat);
 
-- 
GitLab


From 36a154f81d7a4d6051ab53346f1f1e695009bb0c Mon Sep 17 00:00:00 2001
From: Mars Lin <marslin@google.com>
Date: Wed, 17 Nov 2021 19:44:43 +0800
Subject: [PATCH 1504/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 206742435
Signed-off-by: Mars Lin <marslin@google.com>
Change-Id: Iab1d2d791ef6f248e6d34f27f4a85f0844268fa7
---
 android/abi_gki_aarch64_generic | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 1a26599275efc..11d18d4dc073a 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -282,6 +282,7 @@
   crypto_unregister_alg
   crypto_unregister_scomp
   csum_ipv6_magic
+  csum_partial
   csum_tcpudp_nofold
   _ctype
   debugfs_attr_read
@@ -1287,6 +1288,9 @@
   of_translate_address
   of_usb_host_tpl_support
   page_endio
+  page_frag_alloc
+  __page_frag_cache_drain
+  page_frag_free
   page_mapping
   __page_pinner_migration_failed
   panic
-- 
GitLab


From a0199cf0c0cc5e484f398b36abd651180f87e150 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Wed, 17 Nov 2021 17:15:42 -0800
Subject: [PATCH 1505/4878] UPSTREAM: tracing/histogram: Fix UAF in
 destroy_hist_field()

Calling destroy_hist_field() on an expression will recursively free
any operands associated with the expression. If during expression
parsing the operands of the expression are already set when an error
is encountered, there is no need to explicity free the operands. Doing
so will result in destroy_hist_field() being called twice for the
operands and lead to a use-after-free (UAF) error.

If the operands are associated with the expression, only call
destroy_hist_field() on the expression since the operands will be
recursively freed.

Link: https://lore.kernel.org/all/CAHk-=wgcrEbFgkw9720H3tW-AhHOoEKhYwZinYJw4FpzSaJ6_Q@mail.gmail.com/
Link: https://lkml.kernel.org/r/20211118011542.1420131-1-kaleshsingh@google.com

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Fixes: 8b5d46fd7a38 ("tracing/histogram: Optimize division by constants")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit f86b0aaad741c45aba5a84a27277dd56a96808ba)

Bug: 146055070
Bug: 145972256
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I007b17b31e56a1571f91c97993a7fd1fe1140f43
---
 kernel/trace/trace_events_hist.c | 41 +++++++++++++++++---------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index c71d1adfd1f33..0d99d78e66f7f 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2504,28 +2504,27 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 
 	/* Split the expression string at the root operator */
 	if (!sep)
-		goto free;
+		return ERR_PTR(-EINVAL);
+
 	*sep = '\0';
 	operand1_str = str;
 	str = sep+1;
 
 	/* Binary operator requires both operands */
 	if (*operand1_str == '\0' || *str == '\0')
-		goto free;
+		return ERR_PTR(-EINVAL);
 
 	operand_flags = 0;
 
 	/* LHS of string is an expression e.g. a+b in a+b+c */
 	operand1 = parse_expr(hist_data, file, operand1_str, operand_flags, NULL, n_subexprs);
-	if (IS_ERR(operand1)) {
-		ret = PTR_ERR(operand1);
-		operand1 = NULL;
-		goto free;
-	}
+	if (IS_ERR(operand1))
+		return ERR_CAST(operand1);
+
 	if (operand1->flags & HIST_FIELD_FL_STRING) {
 		hist_err(file->tr, HIST_ERR_INVALID_STR_OPERAND, errpos(operand1_str));
 		ret = -EINVAL;
-		goto free;
+		goto free_op1;
 	}
 
 	/* RHS of string is another expression e.g. c in a+b+c */
@@ -2533,13 +2532,12 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	operand2 = parse_expr(hist_data, file, str, operand_flags, NULL, n_subexprs);
 	if (IS_ERR(operand2)) {
 		ret = PTR_ERR(operand2);
-		operand2 = NULL;
-		goto free;
+		goto free_op1;
 	}
 	if (operand2->flags & HIST_FIELD_FL_STRING) {
 		hist_err(file->tr, HIST_ERR_INVALID_STR_OPERAND, errpos(str));
 		ret = -EINVAL;
-		goto free;
+		goto free_operands;
 	}
 
 	switch (field_op) {
@@ -2557,12 +2555,12 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 		break;
 	default:
 		ret = -EINVAL;
-		goto free;
+		goto free_operands;
 	}
 
 	ret = check_expr_operands(file->tr, operand1, operand2, &var1, &var2);
 	if (ret)
-		goto free;
+		goto free_operands;
 
 	operand_flags = var1 ? var1->flags : operand1->flags;
 	operand2_flags = var2 ? var2->flags : operand2->flags;
@@ -2581,12 +2579,13 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 	expr = create_hist_field(hist_data, NULL, flags, var_name);
 	if (!expr) {
 		ret = -ENOMEM;
-		goto free;
+		goto free_operands;
 	}
 
 	operand1->read_once = true;
 	operand2->read_once = true;
 
+	/* The operands are now owned and free'd by 'expr' */
 	expr->operands[0] = operand1;
 	expr->operands[1] = operand2;
 
@@ -2597,7 +2596,7 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 		if (!divisor) {
 			hist_err(file->tr, HIST_ERR_DIVISION_BY_ZERO, errpos(str));
 			ret = -EDOM;
-			goto free;
+			goto free_expr;
 		}
 
 		/*
@@ -2637,18 +2636,22 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 		expr->type = kstrdup_const(operand1->type, GFP_KERNEL);
 		if (!expr->type) {
 			ret = -ENOMEM;
-			goto free;
+			goto free_expr;
 		}
 
 		expr->name = expr_str(expr, 0);
 	}
 
 	return expr;
-free:
-	destroy_hist_field(operand1, 0);
+
+free_operands:
 	destroy_hist_field(operand2, 0);
-	destroy_hist_field(expr, 0);
+free_op1:
+	destroy_hist_field(operand1, 0);
+	return ERR_PTR(ret);
 
+free_expr:
+	destroy_hist_field(expr, 0);
 	return ERR_PTR(ret);
 }
 
-- 
GitLab


From 5465e818035ccb2fe93cf1c9a6337b4eb2dcd667 Mon Sep 17 00:00:00 2001
From: Konstantin Vyshetsky <vkon@google.com>
Date: Thu, 18 Nov 2021 14:43:25 -0800
Subject: [PATCH 1506/4878] ANDROID: ABI: update generic symbol list

add bio_crypt_set_ctx

Bug: 202417931

Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Change-Id: Ibcfbbcd05fbc8fc0726d4c1b49aa5fe502708d42
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 11d18d4dc073a..222af81d4211f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -49,6 +49,7 @@
   bio_alloc_bioset
   bio_associate_blkg
   bio_chain
+  bio_crypt_set_ctx
   bio_endio
   bio_init
   bio_put
-- 
GitLab


From eaafc590053b314d4907017044ba2e739893c17c Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Wed, 12 May 2021 21:51:10 -0700
Subject: [PATCH 1507/4878] fortify: Explicitly disable Clang support

commit a52f8a59aef46b59753e583bf4b28fccb069ce64 upstream.

Clang has never correctly compiled the FORTIFY_SOURCE defenses due to
a couple bugs:

	Eliding inlines with matching __builtin_* names
	https://bugs.llvm.org/show_bug.cgi?id=50322

	Incorrect __builtin_constant_p() of some globals
	https://bugs.llvm.org/show_bug.cgi?id=41459

In the process of making improvements to the FORTIFY_SOURCE defenses, the
first (silent) bug (coincidentally) becomes worked around, but exposes
the latter which breaks the build. As such, Clang must not be used with
CONFIG_FORTIFY_SOURCE until at least latter bug is fixed (in Clang 13),
and the fortify routines have been rearranged.

Update the Kconfig to reflect the reality of the current situation.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/lkml/CAKwvOd=A+ueGV2ihdy5GtgR2fQbcXjjAtVxv3=cPjffpebZB7A@mail.gmail.com
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/security/Kconfig b/security/Kconfig
index 7561f6f99f1d2..0548db16c49dc 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -191,6 +191,9 @@ config HARDENED_USERCOPY_PAGESPAN
 config FORTIFY_SOURCE
 	bool "Harden common str/mem functions against buffer overflows"
 	depends on ARCH_HAS_FORTIFY_SOURCE
+	# https://bugs.llvm.org/show_bug.cgi?id=50322
+	# https://bugs.llvm.org/show_bug.cgi?id=41459
+	depends on !CC_IS_CLANG
 	help
 	  Detect overflows of buffers in common string and memory functions
 	  where the compiler can determine and validate the buffer sizes.
-- 
GitLab


From 79ff56c613c193744d6be77d4c50a7ae22d6dd01 Mon Sep 17 00:00:00 2001
From: Xie Yongji <xieyongji@bytedance.com>
Date: Tue, 26 Oct 2021 22:40:12 +0800
Subject: [PATCH 1508/4878] block: Add a helper to validate the block size

commit 570b1cac477643cbf01a45fa5d018430a1fddbce upstream.

There are some duplicated codes to validate the block
size in block drivers. This limitation actually comes
from block layer, so this patch tries to add a new block
layer helper for that.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20211026144015.188-2-xieyongji@bytedance.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/blkdev.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 4ba17736b614f..98fdf5a31fd66 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -59,6 +59,14 @@ struct blk_keyslot_manager;
  */
 #define BLKCG_MAX_POLS		5
 
+static inline int blk_validate_block_size(unsigned int bsize)
+{
+	if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
+		return -EINVAL;
+
+	return 0;
+}
+
 typedef void (rq_end_io_fn)(struct request *, blk_status_t);
 
 /*
-- 
GitLab


From 04e46514fef692ccd0bca6fbab7fa1e63e5cd05a Mon Sep 17 00:00:00 2001
From: Xie Yongji <xieyongji@bytedance.com>
Date: Tue, 26 Oct 2021 22:40:14 +0800
Subject: [PATCH 1509/4878] loop: Use blk_validate_block_size() to validate
 block size

commit af3c570fb0df422b4906ebd11c1bf363d89961d5 upstream.

Remove loop_validate_block_size() and use the block layer helper
to validate block size.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20211026144015.188-4-xieyongji@bytedance.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/loop.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f0fa0c8e7ec60..ee537a9f1d1a4 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -228,19 +228,6 @@ static void __loop_update_dio(struct loop_device *lo, bool dio)
 		blk_mq_unfreeze_queue(lo->lo_queue);
 }
 
-/**
- * loop_validate_block_size() - validates the passed in block size
- * @bsize: size to validate
- */
-static int
-loop_validate_block_size(unsigned short bsize)
-{
-	if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize))
-		return -EINVAL;
-
-	return 0;
-}
-
 /**
  * loop_set_size() - sets device size and notifies userspace
  * @lo: struct loop_device to set the size for
@@ -1121,7 +1108,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	}
 
 	if (config->block_size) {
-		error = loop_validate_block_size(config->block_size);
+		error = blk_validate_block_size(config->block_size);
 		if (error)
 			goto out_unlock;
 	}
@@ -1617,7 +1604,7 @@ static int loop_set_block_size(struct loop_device *lo, unsigned long arg)
 	if (lo->lo_state != Lo_bound)
 		return -ENXIO;
 
-	err = loop_validate_block_size(arg);
+	err = blk_validate_block_size(arg);
 	if (err)
 		return err;
 
-- 
GitLab


From f27060e28efcbd939e4ae6cd2ecc2ba7d2f5d93d Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Thu, 16 Sep 2021 15:23:12 +0900
Subject: [PATCH 1510/4878] bootconfig: init: Fix memblock leak in
 xbc_make_cmdline()

commit 1ae43851b18afe861120ebd7c426dc44f06bb2bd upstream.

Free unused memblock in a error case to fix memblock leak
in xbc_make_cmdline().

Link: https://lkml.kernel.org/r/163177339181.682366.8713781325929549256.stgit@devnote2

Fixes: 51887d03aca1 ("bootconfig: init: Allow admin to use bootconfig for kernel command line")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 init/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/init/main.c b/init/main.c
index dd26a42e80a87..4fe58ed4aca7b 100644
--- a/init/main.c
+++ b/init/main.c
@@ -380,6 +380,7 @@ static char * __init xbc_make_cmdline(const char *key)
 	ret = xbc_snprint_cmdline(new_cmdline, len + 1, root);
 	if (ret < 0 || ret > len) {
 		pr_err("Failed to print extra kernel cmdline.\n");
+		memblock_free(__pa(new_cmdline), len + 1);
 		return NULL;
 	}
 
-- 
GitLab


From 3afe11be6435e126f1507ddf1a9d0e5a0d90b336 Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Fri, 19 Nov 2021 10:53:54 +0800
Subject: [PATCH 1511/4878] net: stmmac: add clocks management for gmac driver

commit 5ec55823438e850c91c6b92aec93fb04ebde29e2 upstream.

This patch intends to add clocks management for stmmac driver:

If CONFIG_PM enabled:
1. Keep clocks disabled after driver probed.
2. Enable clocks when up the net device, and disable clocks when down
the net device.

If CONFIG_PM disabled:
Keep clocks always enabled after driver probed.

Note:
1. It is fine for ethtool, since the way of implementing ethtool_ops::begin
in stmmac is only can be accessed when interface is enabled, so the clocks
are ticked.
2. The MDIO bus has a different life cycle to the MAC, need ensure
clocks are enabled when _mdio_read/write() need clocks, because these
functions can be called while the interface it not opened.

Stable backport notes:
When run below command to remove ethernet driver on
stratix10 platform, there will be warning trace as below:

$ cd /sys/class/net/eth0/device/driver/
$ echo ff800000.ethernet > unbind

WARNING: CPU: 3 PID: 386 at drivers/clk/clk.c:810 clk_core_unprepare+0x114/0x274
Modules linked in: sch_fq_codel
CPU: 3 PID: 386 Comm: sh Tainted: G        W         5.10.74-yocto-standard #1
Hardware name: SoCFPGA Stratix 10 SoCDK (DT)
pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--)
pc : clk_core_unprepare+0x114/0x274
lr : clk_core_unprepare+0x114/0x274
sp : ffff800011bdbb10
clk_core_unprepare+0x114/0x274
 clk_unprepare+0x38/0x50
 stmmac_remove_config_dt+0x40/0x80
 stmmac_pltfr_remove+0x64/0x80
 platform_drv_remove+0x38/0x60
 ... ..
 el0_sync_handler+0x1a4/0x1b0
 el0_sync+0x180/0x1c0
This issue is introduced by introducing upstream commit 8f269102baf7
("net: stmmac: disable clocks in stmmac_remove_config_dt()")

But in latest mainline kernel, there is no this issue. Because this
patch improved clocks management for stmmac driver.
Therefore, backport it and its fixing patches to stable kernel v5.10.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac.h  |   1 +
 .../net/ethernet/stmicro/stmmac/stmmac_main.c |  75 ++++++++++--
 .../net/ethernet/stmicro/stmmac/stmmac_mdio.c | 111 ++++++++++++++----
 .../ethernet/stmicro/stmmac/stmmac_platform.c |  24 +++-
 4 files changed, 174 insertions(+), 37 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index 727e68dfaf1c2..a4ca283e02284 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -270,6 +270,7 @@ void stmmac_disable_eee_mode(struct stmmac_priv *priv);
 bool stmmac_eee_init(struct stmmac_priv *priv);
 int stmmac_reinit_queues(struct net_device *dev, u32 rx_cnt, u32 tx_cnt);
 int stmmac_reinit_ringparam(struct net_device *dev, u32 rx_size, u32 tx_size);
+int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled);
 
 #if IS_ENABLED(CONFIG_STMMAC_SELFTESTS)
 void stmmac_selftest_run(struct net_device *dev,
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 0ac61e7ab43cd..498962c4b59ea 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -28,6 +28,7 @@
 #include <linux/if_vlan.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/pm_runtime.h>
 #include <linux/prefetch.h>
 #include <linux/pinctrl/consumer.h>
 #ifdef CONFIG_DEBUG_FS
@@ -113,6 +114,28 @@ static void stmmac_exit_fs(struct net_device *dev);
 
 #define STMMAC_COAL_TIMER(x) (jiffies + usecs_to_jiffies(x))
 
+int stmmac_bus_clks_config(struct stmmac_priv *priv, bool enabled)
+{
+	int ret = 0;
+
+	if (enabled) {
+		ret = clk_prepare_enable(priv->plat->stmmac_clk);
+		if (ret)
+			return ret;
+		ret = clk_prepare_enable(priv->plat->pclk);
+		if (ret) {
+			clk_disable_unprepare(priv->plat->stmmac_clk);
+			return ret;
+		}
+	} else {
+		clk_disable_unprepare(priv->plat->stmmac_clk);
+		clk_disable_unprepare(priv->plat->pclk);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(stmmac_bus_clks_config);
+
 /**
  * stmmac_verify_args - verify the driver parameters.
  * Description: it checks the driver parameters and set a default in case of
@@ -2792,6 +2815,12 @@ static int stmmac_open(struct net_device *dev)
 	u32 chan;
 	int ret;
 
+	ret = pm_runtime_get_sync(priv->device);
+	if (ret < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return ret;
+	}
+
 	if (priv->hw->pcs != STMMAC_PCS_TBI &&
 	    priv->hw->pcs != STMMAC_PCS_RTBI &&
 	    priv->hw->xpcs == NULL) {
@@ -2800,7 +2829,7 @@ static int stmmac_open(struct net_device *dev)
 			netdev_err(priv->dev,
 				   "%s: Cannot attach to PHY (error: %d)\n",
 				   __func__, ret);
-			return ret;
+			goto init_phy_error;
 		}
 	}
 
@@ -2915,6 +2944,8 @@ init_error:
 	free_dma_desc_resources(priv);
 dma_desc_error:
 	phylink_disconnect_phy(priv->phylink);
+init_phy_error:
+	pm_runtime_put(priv->device);
 	return ret;
 }
 
@@ -2965,6 +2996,8 @@ static int stmmac_release(struct net_device *dev)
 
 	stmmac_release_ptp(priv);
 
+	pm_runtime_put(priv->device);
+
 	return 0;
 }
 
@@ -4616,6 +4649,12 @@ static int stmmac_vlan_rx_kill_vid(struct net_device *ndev, __be16 proto, u16 vi
 	bool is_double = false;
 	int ret;
 
+	ret = pm_runtime_get_sync(priv->device);
+	if (ret < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return ret;
+	}
+
 	if (be16_to_cpu(proto) == ETH_P_8021AD)
 		is_double = true;
 
@@ -4624,10 +4663,15 @@ static int stmmac_vlan_rx_kill_vid(struct net_device *ndev, __be16 proto, u16 vi
 	if (priv->hw->num_vlan) {
 		ret = stmmac_del_hw_vlan_rx_fltr(priv, ndev, priv->hw, proto, vid);
 		if (ret)
-			return ret;
+			goto del_vlan_error;
 	}
 
-	return stmmac_vlan_update(priv, is_double);
+	ret = stmmac_vlan_update(priv, is_double);
+
+del_vlan_error:
+	pm_runtime_put(priv->device);
+
+	return ret;
 }
 
 static const struct net_device_ops stmmac_netdev_ops = {
@@ -5066,6 +5110,10 @@ int stmmac_dvr_probe(struct device *device,
 
 	stmmac_check_pcs_mode(priv);
 
+	pm_runtime_get_noresume(device);
+	pm_runtime_set_active(device);
+	pm_runtime_enable(device);
+
 	if (priv->hw->pcs != STMMAC_PCS_TBI &&
 	    priv->hw->pcs != STMMAC_PCS_RTBI) {
 		/* MDIO bus Registration */
@@ -5103,6 +5151,11 @@ int stmmac_dvr_probe(struct device *device,
 	stmmac_init_fs(ndev);
 #endif
 
+	/* Let pm_runtime_put() disable the clocks.
+	 * If CONFIG_PM is not enabled, the clocks will stay powered.
+	 */
+	pm_runtime_put(device);
+
 	return ret;
 
 error_serdes_powerup:
@@ -5117,6 +5170,7 @@ error_mdio_register:
 	stmmac_napi_del(ndev);
 error_hw_init:
 	destroy_workqueue(priv->wq);
+	stmmac_bus_clks_config(priv, false);
 
 	return ret;
 }
@@ -5152,8 +5206,8 @@ int stmmac_dvr_remove(struct device *dev)
 	phylink_destroy(priv->phylink);
 	if (priv->plat->stmmac_rst)
 		reset_control_assert(priv->plat->stmmac_rst);
-	clk_disable_unprepare(priv->plat->pclk);
-	clk_disable_unprepare(priv->plat->stmmac_clk);
+	pm_runtime_put(dev);
+	pm_runtime_disable(dev);
 	if (priv->hw->pcs != STMMAC_PCS_TBI &&
 	    priv->hw->pcs != STMMAC_PCS_RTBI)
 		stmmac_mdio_unregister(ndev);
@@ -5176,6 +5230,7 @@ int stmmac_suspend(struct device *dev)
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	u32 chan;
+	int ret;
 
 	if (!ndev || !netif_running(ndev))
 		return 0;
@@ -5219,8 +5274,9 @@ int stmmac_suspend(struct device *dev)
 		pinctrl_pm_select_sleep_state(priv->device);
 		/* Disable clock in case of PWM is off */
 		clk_disable_unprepare(priv->plat->clk_ptp_ref);
-		clk_disable_unprepare(priv->plat->pclk);
-		clk_disable_unprepare(priv->plat->stmmac_clk);
+		ret = pm_runtime_force_suspend(dev);
+		if (ret)
+			return ret;
 	}
 	mutex_unlock(&priv->lock);
 
@@ -5286,8 +5342,9 @@ int stmmac_resume(struct device *dev)
 	} else {
 		pinctrl_pm_select_default_state(priv->device);
 		/* enable the clk previously disabled */
-		clk_prepare_enable(priv->plat->stmmac_clk);
-		clk_prepare_enable(priv->plat->pclk);
+		ret = pm_runtime_force_resume(dev);
+		if (ret)
+			return ret;
 		if (priv->plat->clk_ptp_ref)
 			clk_prepare_enable(priv->plat->clk_ptp_ref);
 		/* reset the phy so that it's ready */
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 678726c62a8af..7c1a14b256da3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -15,6 +15,7 @@
 #include <linux/iopoll.h>
 #include <linux/mii.h>
 #include <linux/of_mdio.h>
+#include <linux/pm_runtime.h>
 #include <linux/phy.h>
 #include <linux/property.h>
 #include <linux/slab.h>
@@ -87,21 +88,29 @@ static int stmmac_xgmac2_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 	u32 tmp, addr, value = MII_XGMAC_BUSY;
 	int ret;
 
+	ret = pm_runtime_get_sync(priv->device);
+	if (ret < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return ret;
+	}
+
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
-			       !(tmp & MII_XGMAC_BUSY), 100, 10000))
-		return -EBUSY;
+			       !(tmp & MII_XGMAC_BUSY), 100, 10000)) {
+		ret = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	if (phyreg & MII_ADDR_C45) {
 		phyreg &= ~MII_ADDR_C45;
 
 		ret = stmmac_xgmac2_c45_format(priv, phyaddr, phyreg, &addr);
 		if (ret)
-			return ret;
+			goto err_disable_clks;
 	} else {
 		ret = stmmac_xgmac2_c22_format(priv, phyaddr, phyreg, &addr);
 		if (ret)
-			return ret;
+			goto err_disable_clks;
 
 		value |= MII_XGMAC_SADDR;
 	}
@@ -112,8 +121,10 @@ static int stmmac_xgmac2_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
-			       !(tmp & MII_XGMAC_BUSY), 100, 10000))
-		return -EBUSY;
+			       !(tmp & MII_XGMAC_BUSY), 100, 10000)) {
+		ret = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	/* Set the MII address register to read */
 	writel(addr, priv->ioaddr + mii_address);
@@ -121,11 +132,18 @@ static int stmmac_xgmac2_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
-			       !(tmp & MII_XGMAC_BUSY), 100, 10000))
-		return -EBUSY;
+			       !(tmp & MII_XGMAC_BUSY), 100, 10000)) {
+		ret = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	/* Read the data from the MII data register */
-	return readl(priv->ioaddr + mii_data) & GENMASK(15, 0);
+	ret = (int)readl(priv->ioaddr + mii_data) & GENMASK(15, 0);
+
+err_disable_clks:
+	pm_runtime_put(priv->device);
+
+	return ret;
 }
 
 static int stmmac_xgmac2_mdio_write(struct mii_bus *bus, int phyaddr,
@@ -138,21 +156,29 @@ static int stmmac_xgmac2_mdio_write(struct mii_bus *bus, int phyaddr,
 	u32 addr, tmp, value = MII_XGMAC_BUSY;
 	int ret;
 
+	ret = pm_runtime_get_sync(priv->device);
+	if (ret < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return ret;
+	}
+
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
-			       !(tmp & MII_XGMAC_BUSY), 100, 10000))
-		return -EBUSY;
+			       !(tmp & MII_XGMAC_BUSY), 100, 10000)) {
+		ret = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	if (phyreg & MII_ADDR_C45) {
 		phyreg &= ~MII_ADDR_C45;
 
 		ret = stmmac_xgmac2_c45_format(priv, phyaddr, phyreg, &addr);
 		if (ret)
-			return ret;
+			goto err_disable_clks;
 	} else {
 		ret = stmmac_xgmac2_c22_format(priv, phyaddr, phyreg, &addr);
 		if (ret)
-			return ret;
+			goto err_disable_clks;
 
 		value |= MII_XGMAC_SADDR;
 	}
@@ -164,16 +190,23 @@ static int stmmac_xgmac2_mdio_write(struct mii_bus *bus, int phyaddr,
 
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
-			       !(tmp & MII_XGMAC_BUSY), 100, 10000))
-		return -EBUSY;
+			       !(tmp & MII_XGMAC_BUSY), 100, 10000)) {
+		ret = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	/* Set the MII address register to write */
 	writel(addr, priv->ioaddr + mii_address);
 	writel(value, priv->ioaddr + mii_data);
 
 	/* Wait until any existing MII operation is complete */
-	return readl_poll_timeout(priv->ioaddr + mii_data, tmp,
-				  !(tmp & MII_XGMAC_BUSY), 100, 10000);
+	ret = readl_poll_timeout(priv->ioaddr + mii_data, tmp,
+				 !(tmp & MII_XGMAC_BUSY), 100, 10000);
+
+err_disable_clks:
+	pm_runtime_put(priv->device);
+
+	return ret;
 }
 
 /**
@@ -196,6 +229,12 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 	int data = 0;
 	u32 v;
 
+	data = pm_runtime_get_sync(priv->device);
+	if (data < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return data;
+	}
+
 	value |= (phyaddr << priv->hw->mii.addr_shift)
 		& priv->hw->mii.addr_mask;
 	value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;
@@ -216,19 +255,26 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 	}
 
 	if (readl_poll_timeout(priv->ioaddr + mii_address, v, !(v & MII_BUSY),
-			       100, 10000))
-		return -EBUSY;
+			       100, 10000)) {
+		data = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	writel(data, priv->ioaddr + mii_data);
 	writel(value, priv->ioaddr + mii_address);
 
 	if (readl_poll_timeout(priv->ioaddr + mii_address, v, !(v & MII_BUSY),
-			       100, 10000))
-		return -EBUSY;
+			       100, 10000)) {
+		data = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	/* Read the data from the MII data register */
 	data = (int)readl(priv->ioaddr + mii_data) & MII_DATA_MASK;
 
+err_disable_clks:
+	pm_runtime_put(priv->device);
+
 	return data;
 }
 
@@ -247,10 +293,16 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	unsigned int mii_address = priv->hw->mii.addr;
 	unsigned int mii_data = priv->hw->mii.data;
+	int ret, data = phydata;
 	u32 value = MII_BUSY;
-	int data = phydata;
 	u32 v;
 
+	ret = pm_runtime_get_sync(priv->device);
+	if (ret < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return ret;
+	}
+
 	value |= (phyaddr << priv->hw->mii.addr_shift)
 		& priv->hw->mii.addr_mask;
 	value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;
@@ -275,16 +327,23 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
 
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_address, v, !(v & MII_BUSY),
-			       100, 10000))
-		return -EBUSY;
+			       100, 10000)) {
+		ret = -EBUSY;
+		goto err_disable_clks;
+	}
 
 	/* Set the MII address register to write */
 	writel(data, priv->ioaddr + mii_data);
 	writel(value, priv->ioaddr + mii_address);
 
 	/* Wait until any existing MII operation is complete */
-	return readl_poll_timeout(priv->ioaddr + mii_address, v, !(v & MII_BUSY),
-				  100, 10000);
+	ret = readl_poll_timeout(priv->ioaddr + mii_address, v, !(v & MII_BUSY),
+				 100, 10000);
+
+err_disable_clks:
+	pm_runtime_put(priv->device);
+
+	return ret;
 }
 
 /**
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 48186cd32ce10..332afe8519f46 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -760,10 +760,30 @@ static int stmmac_pltfr_resume(struct device *dev)
 
 	return stmmac_resume(dev);
 }
+
+static int stmmac_runtime_suspend(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+
+	stmmac_bus_clks_config(priv, false);
+
+	return 0;
+}
+
+static int stmmac_runtime_resume(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+
+	return stmmac_bus_clks_config(priv, true);
+}
 #endif /* CONFIG_PM_SLEEP */
 
-SIMPLE_DEV_PM_OPS(stmmac_pltfr_pm_ops, stmmac_pltfr_suspend,
-				       stmmac_pltfr_resume);
+const struct dev_pm_ops stmmac_pltfr_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_suspend, stmmac_pltfr_resume)
+	SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
+};
 EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
 
 MODULE_DESCRIPTION("STMMAC 10/100/1000 Ethernet platform support");
-- 
GitLab


From 483ed89522b0f28e8bb0947646330c9200bf69d8 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Fri, 19 Nov 2021 10:53:55 +0800
Subject: [PATCH 1512/4878] net: stmmac: platform: fix build error with
 !CONFIG_PM_SLEEP

commit 7ec05a6035480f3a5934b2b31222620b2e906163 upstream

Get rid of the CONFIG_PM_SLEEP ifdefery to fix the build error
and use __maybe_unused for the suspend()/resume() hooks to avoid
build warning:

drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:769:21:
 error: 'stmmac_runtime_suspend' undeclared here (not in a function); did you mean 'stmmac_suspend'?
  769 |  SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
      |                     ^~~~~~~~~~~~~~~~~~~~~~
./include/linux/pm.h:342:21: note: in definition of macro 'SET_RUNTIME_PM_OPS'
  342 |  .runtime_suspend = suspend_fn, \
      |                     ^~~~~~~~~~
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:769:45:
 error: 'stmmac_runtime_resume' undeclared here (not in a function)
  769 |  SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
      |                                             ^~~~~~~~~~~~~~~~~~~~~
./include/linux/pm.h:343:20: note: in definition of macro 'SET_RUNTIME_PM_OPS'
  343 |  .runtime_resume = resume_fn, \
      |                    ^~~~~~~~~

Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 332afe8519f46..035f9aef4308f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -720,7 +720,6 @@ int stmmac_pltfr_remove(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
 
-#ifdef CONFIG_PM_SLEEP
 /**
  * stmmac_pltfr_suspend
  * @dev: device pointer
@@ -728,7 +727,7 @@ EXPORT_SYMBOL_GPL(stmmac_pltfr_remove);
  * call the main suspend function and then, if required, on some platform, it
  * can call an exit helper.
  */
-static int stmmac_pltfr_suspend(struct device *dev)
+static int __maybe_unused stmmac_pltfr_suspend(struct device *dev)
 {
 	int ret;
 	struct net_device *ndev = dev_get_drvdata(dev);
@@ -749,7 +748,7 @@ static int stmmac_pltfr_suspend(struct device *dev)
  * the main resume function, on some platforms, it can call own init helper
  * if required.
  */
-static int stmmac_pltfr_resume(struct device *dev)
+static int __maybe_unused stmmac_pltfr_resume(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
@@ -761,7 +760,7 @@ static int stmmac_pltfr_resume(struct device *dev)
 	return stmmac_resume(dev);
 }
 
-static int stmmac_runtime_suspend(struct device *dev)
+static int __maybe_unused stmmac_runtime_suspend(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
@@ -771,14 +770,13 @@ static int stmmac_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int stmmac_runtime_resume(struct device *dev)
+static int __maybe_unused stmmac_runtime_resume(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
 
 	return stmmac_bus_clks_config(priv, true);
 }
-#endif /* CONFIG_PM_SLEEP */
 
 const struct dev_pm_ops stmmac_pltfr_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_suspend, stmmac_pltfr_resume)
-- 
GitLab


From bcf37522432dcacae18e1cec7c41308505d5ea22 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 19 Nov 2021 10:53:56 +0800
Subject: [PATCH 1513/4878] net: stmmac: fix missing unlock on error in
 stmmac_suspend()

commit 30f347ae7cc1178c431f968a89d4b4a375bc0d39 upstream

Add the missing unlock before return from stmmac_suspend()
in the error handling case.

Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 498962c4b59ea..51626edc6a4c5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5275,8 +5275,10 @@ int stmmac_suspend(struct device *dev)
 		/* Disable clock in case of PWM is off */
 		clk_disable_unprepare(priv->plat->clk_ptp_ref);
 		ret = pm_runtime_force_suspend(dev);
-		if (ret)
+		if (ret) {
+			mutex_unlock(&priv->lock);
 			return ret;
+		}
 	}
 	mutex_unlock(&priv->lock);
 
-- 
GitLab


From ac4bb9951c2cb9e40d5cf9a010ac8dead6f46501 Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Fri, 19 Nov 2021 10:53:57 +0800
Subject: [PATCH 1514/4878] net: stmmac: fix system hang if change mac address
 after interface ifdown

commit 4691ffb18ac908609aab07d13af7995b6b89d33c upstream.

Fix system hang with below sequences:
~# ifconfig ethx down
~# ifconfig ethx hw ether xx:xx:xx:xx:xx:xx

After ethx down, stmmac all clocks gated off and then register access causes
system hang.

Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 51626edc6a4c5..cccf98f66ff48 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4324,12 +4324,21 @@ static int stmmac_set_mac_address(struct net_device *ndev, void *addr)
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	int ret = 0;
 
+	ret = pm_runtime_get_sync(priv->device);
+	if (ret < 0) {
+		pm_runtime_put_noidle(priv->device);
+		return ret;
+	}
+
 	ret = eth_mac_addr(ndev, addr);
 	if (ret)
-		return ret;
+		goto set_mac_error;
 
 	stmmac_set_umac_addr(priv, priv->hw, ndev->dev_addr, 0);
 
+set_mac_error:
+	pm_runtime_put(priv->device);
+
 	return ret;
 }
 
-- 
GitLab


From 80407c6ad9da25f52f8091cdd8c7b80168d5c3d5 Mon Sep 17 00:00:00 2001
From: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Date: Fri, 19 Nov 2021 10:53:58 +0800
Subject: [PATCH 1515/4878] net: stmmac: fix issue where clk is being
 unprepared twice

commit ab00f3e051e851a8458f0d0eb1bb426deadb6619 upstream.

In the case of MDIO bus registration failure due to no external PHY
devices is connected to the MAC, clk_disable_unprepare() is called in
stmmac_bus_clk_config() and intel_eth_pci_probe() respectively.

The second call in intel_eth_pci_probe() will caused the following:-

[   16.578605] intel-eth-pci 0000:00:1e.5: No PHY found
[   16.583778] intel-eth-pci 0000:00:1e.5: stmmac_dvr_probe: MDIO bus (id: 2) registration failed
[   16.680181] ------------[ cut here ]------------
[   16.684861] stmmac-0000:00:1e.5 already disabled
[   16.689547] WARNING: CPU: 13 PID: 2053 at drivers/clk/clk.c:952 clk_core_disable+0x96/0x1b0
[   16.697963] Modules linked in: dwc3 iTCO_wdt mei_hdcp iTCO_vendor_support udc_core x86_pkg_temp_thermal kvm_intel marvell10g kvm sch_fq_codel nfsd irqbypass dwmac_intel(+) stmmac uio ax88179_178a pcs_xpcs phylink uhid spi_pxa2xx_platform usbnet mei_me pcspkr tpm_crb mii i2c_i801 dw_dmac dwc3_pci thermal dw_dmac_core intel_rapl_msr libphy i2c_smbus mei tpm_tis intel_th_gth tpm_tis_core tpm intel_th_acpi intel_pmc_core intel_th i915 fuse configfs snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_pcm snd_timer snd soundcore
[   16.746785] CPU: 13 PID: 2053 Comm: systemd-udevd Tainted: G     U            5.13.0-rc3-intel-lts #76
[   16.756134] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-S ADP-S DRR4 CRB, BIOS ADLIFSI1.R00.1494.B00.2012031421 12/03/2020
[   16.769465] RIP: 0010:clk_core_disable+0x96/0x1b0
[   16.774222] Code: 00 8b 05 45 96 17 01 85 c0 7f 24 48 8b 5b 30 48 85 db 74 a5 8b 43 7c 85 c0 75 93 48 8b 33 48 c7 c7 6e 32 cc b7 e8 b2 5d 52 00 <0f> 0b 5b 5d c3 65 8b 05 76 31 18 49 89 c0 48 0f a3 05 bc 92 1a 01
[   16.793016] RSP: 0018:ffffa44580523aa0 EFLAGS: 00010086
[   16.798287] RAX: 0000000000000000 RBX: ffff8d7d0eb70a00 RCX: 0000000000000000
[   16.805435] RDX: 0000000000000002 RSI: ffffffffb7c62d5f RDI: 00000000ffffffff
[   16.812610] RBP: 0000000000000287 R08: 0000000000000000 R09: ffffa445805238d0
[   16.819759] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8d7d0eb70a00
[   16.826904] R13: ffff8d7d027370c8 R14: 0000000000000006 R15: ffffa44580523ad0
[   16.834047] FS:  00007f9882fa2600(0000) GS:ffff8d80a0940000(0000) knlGS:0000000000000000
[   16.842177] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.847966] CR2: 00007f9882bea3d8 CR3: 000000010b126001 CR4: 0000000000370ee0
[   16.855144] Call Trace:
[   16.857614]  clk_core_disable_lock+0x1b/0x30
[   16.861941]  intel_eth_pci_probe.cold+0x11d/0x136 [dwmac_intel]
[   16.867913]  pci_device_probe+0xcf/0x150
[   16.871890]  really_probe+0xf5/0x3e0
[   16.875526]  driver_probe_device+0x64/0x150
[   16.879763]  device_driver_attach+0x53/0x60
[   16.883998]  __driver_attach+0x9f/0x150
[   16.887883]  ? device_driver_attach+0x60/0x60
[   16.892288]  ? device_driver_attach+0x60/0x60
[   16.896698]  bus_for_each_dev+0x77/0xc0
[   16.900583]  bus_add_driver+0x184/0x1f0
[   16.904469]  driver_register+0x6c/0xc0
[   16.908268]  ? 0xffffffffc07ae000
[   16.911598]  do_one_initcall+0x4a/0x210
[   16.915489]  ? kmem_cache_alloc_trace+0x305/0x4e0
[   16.920247]  do_init_module+0x5c/0x230
[   16.924057]  load_module+0x2894/0x2b70
[   16.927857]  ? __do_sys_finit_module+0xb5/0x120
[   16.932441]  __do_sys_finit_module+0xb5/0x120
[   16.936845]  do_syscall_64+0x42/0x80
[   16.940476]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   16.945586] RIP: 0033:0x7f98830e5ccd
[   16.949177] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 93 31 0c 00 f7 d8 64 89 01 48
[   16.967970] RSP: 002b:00007ffc66b60168 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.975583] RAX: ffffffffffffffda RBX: 000055885de35ef0 RCX: 00007f98830e5ccd
[   16.982725] RDX: 0000000000000000 RSI: 00007f98832541e3 RDI: 0000000000000012
[   16.989868] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000000
[   16.997042] R10: 0000000000000012 R11: 0000000000000246 R12: 00007f98832541e3
[   17.004222] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffc66b60328
[   17.011369] ---[ end trace df06a3dab26b988c ]---
[   17.016062] ------------[ cut here ]------------
[   17.020701] stmmac-0000:00:1e.5 already unprepared

Removing the stmmac_bus_clks_config() call in stmmac_dvr_probe and let
dwmac-intel to handle the unprepare and disable of the clk device.

Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Reviewed-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index cccf98f66ff48..4a75e73f06bbd 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5179,7 +5179,6 @@ error_mdio_register:
 	stmmac_napi_del(ndev);
 error_hw_init:
 	destroy_workqueue(priv->wq);
-	stmmac_bus_clks_config(priv, false);
 
 	return ret;
 }
-- 
GitLab


From a0958a5354f7bcade6557003eac23a77b7d26fb4 Mon Sep 17 00:00:00 2001
From: Michael Riesch <michael.riesch@wolfvision.net>
Date: Fri, 19 Nov 2021 10:53:59 +0800
Subject: [PATCH 1516/4878] net: stmmac: dwmac-rk: fix unbalanced
 pm_runtime_enable warnings

commit 2d26f6e39afb88d32b8f39e76a51b542c3c51674 upstream.

This reverts commit 2c896fb02e7f65299646f295a007bda043e0f382
"net: stmmac: dwmac-rk: add pd_gmac support for rk3399" and fixes
unbalanced pm_runtime_enable warnings.

In the commit to be reverted, support for power management was
introduced to the Rockchip glue code. Later, power management support
was introduced to the stmmac core code, resulting in multiple
invocations of pm_runtime_{enable,disable,get_sync,put_sync}.

The multiple invocations happen in rk_gmac_powerup and
stmmac_{dvr_probe, resume} as well as in rk_gmac_powerdown and
stmmac_{dvr_remove, suspend}, respectively, which are always called
in conjunction.

Fixes: 5ec55823438e850c91c6b92aec93fb04ebde29e2 ("net: stmmac: add clocks management for gmac driver")
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 6ef30252bfe0a..143b2cb13bf94 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -21,7 +21,6 @@
 #include <linux/delay.h>
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
-#include <linux/pm_runtime.h>
 
 #include "stmmac_platform.h"
 
@@ -1336,9 +1335,6 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
 		return ret;
 	}
 
-	pm_runtime_enable(dev);
-	pm_runtime_get_sync(dev);
-
 	if (bsp_priv->integrated_phy)
 		rk_gmac_integrated_phy_powerup(bsp_priv);
 
@@ -1347,14 +1343,9 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
 
 static void rk_gmac_powerdown(struct rk_priv_data *gmac)
 {
-	struct device *dev = &gmac->pdev->dev;
-
 	if (gmac->integrated_phy)
 		rk_gmac_integrated_phy_powerdown(gmac);
 
-	pm_runtime_put_sync(dev);
-	pm_runtime_disable(dev);
-
 	phy_power_on(gmac, false);
 	gmac_clk_enable(gmac, false);
 }
-- 
GitLab


From b31bac061918936d6f6d647878bd45a2c81b446b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 17 Sep 2021 11:20:04 +0200
Subject: [PATCH 1517/4878] x86/iopl: Fake iopl(3) CLI/STI usage

commit b968e84b509da593c50dc3db679e1d33de701f78 upstream.

Since commit c8137ace5638 ("x86/iopl: Restrict iopl() permission
scope") it's possible to emulate iopl(3) using ioperm(), except for
the CLI/STI usage.

Userspace CLI/STI usage is very dubious (read broken), since any
exception taken during that window can lead to rescheduling anyway (or
worse). The IOPL(2) manpage even states that usage of CLI/STI is highly
discouraged and might even crash the system.

Of course, that won't stop people and HP has the dubious honour of
being the first vendor to be found using this in their hp-health
package.

In order to enable this 'software' to still 'work', have the #GP treat
the CLI/STI instructions as NOPs when iopl(3). Warn the user that
their program is doing dubious things.

Fixes: a24ca9976843 ("x86/iopl: Remove legacy IOPL option")
Reported-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@kernel.org # v5.5+
Link: https://lkml.kernel.org/r/20210918090641.GD5106@worktop.programming.kicks-ass.net
Signed-off-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/insn-eval.h |  1 +
 arch/x86/include/asm/processor.h |  1 +
 arch/x86/kernel/process.c        |  1 +
 arch/x86/kernel/traps.c          | 34 ++++++++++++++++++++++++++++++++
 arch/x86/lib/insn-eval.c         |  2 +-
 5 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/insn-eval.h b/arch/x86/include/asm/insn-eval.h
index 98b4dae5e8bc8..c1438f9239e46 100644
--- a/arch/x86/include/asm/insn-eval.h
+++ b/arch/x86/include/asm/insn-eval.h
@@ -21,6 +21,7 @@ int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs);
 int insn_get_modrm_reg_off(struct insn *insn, struct pt_regs *regs);
 unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx);
 int insn_get_code_seg_params(struct pt_regs *regs);
+unsigned long insn_get_effective_ip(struct pt_regs *regs);
 int insn_fetch_from_user(struct pt_regs *regs,
 			 unsigned char buf[MAX_INSN_SIZE]);
 int insn_fetch_from_user_inatomic(struct pt_regs *regs,
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 50d02db723177..d428d611a43a9 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -534,6 +534,7 @@ struct thread_struct {
 	 */
 	unsigned long		iopl_emul;
 
+	unsigned int		iopl_warn:1;
 	unsigned int		sig_on_uaccess_err:1;
 
 	/* Floating point and extended processor state */
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 145a7ac0c19aa..0aa1baf9a3afc 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -138,6 +138,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg,
 	frame->ret_addr = (unsigned long) ret_from_fork;
 	p->thread.sp = (unsigned long) fork_frame;
 	p->thread.io_bitmap = NULL;
+	p->thread.iopl_warn = 0;
 	memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 143fcb8af38f4..2d4ecd50e69b8 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -523,6 +523,37 @@ static enum kernel_gp_hint get_kernel_gp_address(struct pt_regs *regs,
 
 #define GPFSTR "general protection fault"
 
+static bool fixup_iopl_exception(struct pt_regs *regs)
+{
+	struct thread_struct *t = &current->thread;
+	unsigned char byte;
+	unsigned long ip;
+
+	if (!IS_ENABLED(CONFIG_X86_IOPL_IOPERM) || t->iopl_emul != 3)
+		return false;
+
+	ip = insn_get_effective_ip(regs);
+	if (!ip)
+		return false;
+
+	if (get_user(byte, (const char __user *)ip))
+		return false;
+
+	if (byte != 0xfa && byte != 0xfb)
+		return false;
+
+	if (!t->iopl_warn && printk_ratelimit()) {
+		pr_err("%s[%d] attempts to use CLI/STI, pretending it's a NOP, ip:%lx",
+		       current->comm, task_pid_nr(current), ip);
+		print_vma_addr(KERN_CONT " in ", ip);
+		pr_cont("\n");
+		t->iopl_warn = 1;
+	}
+
+	regs->ip += 1;
+	return true;
+}
+
 DEFINE_IDTENTRY_ERRORCODE(exc_general_protection)
 {
 	char desc[sizeof(GPFSTR) + 50 + 2*sizeof(unsigned long) + 1] = GPFSTR;
@@ -548,6 +579,9 @@ DEFINE_IDTENTRY_ERRORCODE(exc_general_protection)
 	tsk = current;
 
 	if (user_mode(regs)) {
+		if (fixup_iopl_exception(regs))
+			goto exit;
+
 		tsk->thread.error_code = error_code;
 		tsk->thread.trap_nr = X86_TRAP_GP;
 
diff --git a/arch/x86/lib/insn-eval.c b/arch/x86/lib/insn-eval.c
index bb0b3fe1e0a02..c6a19c88af547 100644
--- a/arch/x86/lib/insn-eval.c
+++ b/arch/x86/lib/insn-eval.c
@@ -1415,7 +1415,7 @@ void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs)
 	}
 }
 
-static unsigned long insn_get_effective_ip(struct pt_regs *regs)
+unsigned long insn_get_effective_ip(struct pt_regs *regs)
 {
 	unsigned long seg_base = 0;
 
-- 
GitLab


From c49bfdfe535c65fe14041cf11b7f36950f26f317 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Sat, 13 Nov 2021 20:41:17 +0100
Subject: [PATCH 1518/4878] parisc/entry: fix trace test in syscall exit path

commit 3ec18fc7831e7d79e2d536dd1f3bc0d3ba425e8a upstream.

commit 8779e05ba8aa ("parisc: Fix ptrace check on syscall return")
fixed testing of TI_FLAGS. This uncovered a bug in the test mask.
syscall_restore_rfi is only used when the kernel needs to exit to
usespace with single or block stepping and the recovery counter
enabled. The test however used _TIF_SYSCALL_TRACE_MASK, which
includes a lot of bits that shouldn't be tested here.

Fix this by using TIF_SINGLESTEP and TIF_BLOCKSTEP directly.

I encountered this bug by enabling syscall tracepoints. Both in qemu and
on real hardware. As soon as i enabled the tracepoint (sys_exit_read,
but i guess it doesn't really matter which one), i got random page
faults in userspace almost immediately.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/entry.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 9c76d50a5654b..3da39140babcf 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1849,7 +1849,7 @@ syscall_restore:
 
 	/* Are we being ptraced? */
 	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
-	ldi	_TIF_SYSCALL_TRACE_MASK,%r2
+	ldi	_TIF_SINGLESTEP|_TIF_BLOCKSTEP,%r2
 	and,COND(=)	%r19,%r2,%r0
 	b,n	syscall_restore_rfi
 
-- 
GitLab


From 9b61500ee536adc38929852259d8c84ab6b908bc Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 9 Nov 2021 14:53:57 +0100
Subject: [PATCH 1519/4878] PCI/MSI: Destroy sysfs before freeing entries

commit 3735459037114d31e5acd9894fad9aed104231a0 upstream.

free_msi_irqs() frees the MSI entries before destroying the sysfs entries
which are exposing them. Nothing prevents a concurrent free while a sysfs
file is read and accesses the possibly freed entry.

Move the sysfs release ahead of freeing the entries.

Fixes: 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not kobjects")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87sfw5305m.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/msi.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a7a1c74113483..2982403e32136 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -396,18 +396,6 @@ static void free_msi_irqs(struct pci_dev *dev)
 			for (i = 0; i < entry->nvec_used; i++)
 				BUG_ON(irq_has_action(entry->irq + i));
 
-	pci_msi_teardown_msi_irqs(dev);
-
-	list_for_each_entry_safe(entry, tmp, msi_list, list) {
-		if (entry->msi_attrib.is_msix) {
-			if (list_is_last(&entry->list, msi_list))
-				iounmap(entry->mask_base);
-		}
-
-		list_del(&entry->list);
-		free_msi_entry(entry);
-	}
-
 	if (dev->msi_irq_groups) {
 		sysfs_remove_groups(&dev->dev.kobj, dev->msi_irq_groups);
 		msi_attrs = dev->msi_irq_groups[0]->attrs;
@@ -423,6 +411,18 @@ static void free_msi_irqs(struct pci_dev *dev)
 		kfree(dev->msi_irq_groups);
 		dev->msi_irq_groups = NULL;
 	}
+
+	pci_msi_teardown_msi_irqs(dev);
+
+	list_for_each_entry_safe(entry, tmp, msi_list, list) {
+		if (entry->msi_attrib.is_msix) {
+			if (list_is_last(&entry->list, msi_list))
+				iounmap(entry->mask_base);
+		}
+
+		list_del(&entry->list);
+		free_msi_entry(entry);
+	}
 }
 
 static void pci_intx_for_msi(struct pci_dev *dev, int enable)
-- 
GitLab


From f28c620e1ac1b7312519516217240556193c2618 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 4 Nov 2021 18:01:29 +0000
Subject: [PATCH 1520/4878] PCI/MSI: Deal with devices lying about their MSI
 mask capability

commit 2226667a145db2e1f314d7f57fd644fe69863ab9 upstream.

It appears that some devices are lying about their mask capability,
pretending that they don't have it, while they actually do.
The net result is that now that we don't enable MSIs on such
endpoint.

Add a new per-device flag to deal with this. Further patches will
make use of it, sadly.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20211104180130.3825416-2-maz@kernel.org
Cc: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/msi.c   | 3 +++
 include/linux/pci.h | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 2982403e32136..db7475dc601f5 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -592,6 +592,9 @@ msi_setup_entry(struct pci_dev *dev, int nvec, struct irq_affinity *affd)
 		goto out;
 
 	pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control);
+	/* Lies, damned lies, and MSIs */
+	if (dev->dev_flags & PCI_DEV_FLAGS_HAS_MSI_MASKING)
+		control |= PCI_MSI_FLAGS_MASKBIT;
 
 	entry->msi_attrib.is_msix	= 0;
 	entry->msi_attrib.is_64		= !!(control & PCI_MSI_FLAGS_64BIT);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index a55097b4d9927..4519bd12643f6 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -227,6 +227,8 @@ enum pci_dev_flags {
 	PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
 	/* Don't use Relaxed Ordering for TLPs directed at this device */
 	PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
+	/* Device does honor MSI masking despite saying otherwise */
+	PCI_DEV_FLAGS_HAS_MSI_MASKING = (__force pci_dev_flags_t) (1 << 12),
 };
 
 enum pci_irq_reroute_variant {
-- 
GitLab


From 5bf5f464831c26dca627bf32d4e51067dcd39d64 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 4 Nov 2021 18:01:30 +0000
Subject: [PATCH 1521/4878] PCI: Add MSI masking quirk for Nvidia ION AHCI

commit f21082fb20dbfb3e42b769b59ef21c2a7f2c7c1f upstream.

The ION AHCI device pretends that MSI masking isn't a thing, while it
actually implements it and needs MSIs to be unmasked to work. Add a quirk
to that effect.

Reported-by: Rui Salvaterra <rsalvaterra@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <helgaas@kernel.org>
Link: https://lore.kernel.org/r/CALjTZvbzYfBuLB+H=fj2J+9=DxjQ2Uqcy0if_PvmJ-nU-qEgkg@mail.gmail.com
Link: https://lore.kernel.org/r/20211104180130.3825416-3-maz@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index fb91b2d7b1c59..bb863ddb59bfc 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5756,3 +5756,9 @@ static void apex_pci_fixup_class(struct pci_dev *pdev)
 }
 DECLARE_PCI_FIXUP_CLASS_HEADER(0x1ac1, 0x089a,
 			       PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class);
+
+static void nvidia_ion_ahci_fixup(struct pci_dev *pdev)
+{
+	pdev->dev_flags |= PCI_DEV_FLAGS_HAS_MSI_MASKING;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, 0x0ab8, nvidia_ion_ahci_fixup);
-- 
GitLab


From 6c1ad56b2d78725034bfed17782dc1264149563d Mon Sep 17 00:00:00 2001
From: Yue Hu <huyue2@yulong.com>
Date: Tue, 16 Nov 2021 09:08:18 +0800
Subject: [PATCH 1522/4878] erofs: remove the occupied parameter from
 z_erofs_pagevec_enqueue()

commit 7dea3de7d384f4c8156e8bd93112ba6db1eb276c upstream.

No any behavior to variable occupied in z_erofs_attach_page() which
is only caller to z_erofs_pagevec_enqueue().

Link: https://lore.kernel.org/r/20210419102623.2015-1-zbestahu@gmail.com
Signed-off-by: Yue Hu <huyue2@yulong.com>
Reviewed-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/erofs/zdata.c | 4 +---
 fs/erofs/zpvec.h | 5 +----
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 86fd3bf62af61..ca27d3e47857b 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -282,7 +282,6 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 			       enum z_erofs_page_type type)
 {
 	int ret;
-	bool occupied;
 
 	/* give priority for inplaceio */
 	if (clt->mode >= COLLECT_PRIMARY &&
@@ -290,8 +289,7 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 	    z_erofs_try_inplace_io(clt, page))
 		return 0;
 
-	ret = z_erofs_pagevec_enqueue(&clt->vector,
-				      page, type, &occupied);
+	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type);
 	clt->cl->vcnt += (unsigned int)ret;
 
 	return ret ? 0 : -EAGAIN;
diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h
index 1d67cbd387042..95a620739e6a6 100644
--- a/fs/erofs/zpvec.h
+++ b/fs/erofs/zpvec.h
@@ -107,10 +107,8 @@ static inline void z_erofs_pagevec_ctor_init(struct z_erofs_pagevec_ctor *ctor,
 
 static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
 					   struct page *page,
-					   enum z_erofs_page_type type,
-					   bool *occupied)
+					   enum z_erofs_page_type type)
 {
-	*occupied = false;
 	if (!ctor->next && type)
 		if (ctor->index + 1 == ctor->nr)
 			return false;
@@ -125,7 +123,6 @@ static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
 	/* should remind that collector->next never equal to 1, 2 */
 	if (type == (uintptr_t)ctor->next) {
 		ctor->next = page;
-		*occupied = true;
 	}
 	ctor->pages[ctor->index++] = tagptr_fold(erofs_vtptr_t, page, type);
 	return true;
-- 
GitLab


From be3f6035831a667f5d316be180176a3a8d8460b5 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Tue, 16 Nov 2021 09:08:19 +0800
Subject: [PATCH 1523/4878] erofs: fix unsafe pagevec reuse of hooked pclusters

commit 86432a6dca9bed79111990851df5756d3eb5f57c upstream.

There are pclusters in runtime marked with Z_EROFS_PCLUSTER_TAIL
before actual I/O submission. Thus, the decompression chain can be
extended if the following pcluster chain hooks such tail pcluster.

As the related comment mentioned, if some page is made of a hooked
pcluster and another followed pcluster, it can be reused for in-place
I/O (since I/O should be submitted anyway):
 _______________________________________________________________
|  tail (partial) page |          head (partial) page           |
|_____PRIMARY_HOOKED___|____________PRIMARY_FOLLOWED____________|

However, it's by no means safe to reuse as pagevec since if such
PRIMARY_HOOKED pclusters finally move into bypass chain without I/O
submission. It's somewhat hard to reproduce with LZ4 and I just found
it (general protection fault) by ro_fsstressing a LZMA image for long
time.

I'm going to actively clean up related code together with multi-page
folio adaption in the next few months. Let's address it directly for
easier backporting for now.

Call trace for reference:
  z_erofs_decompress_pcluster+0x10a/0x8a0 [erofs]
  z_erofs_decompress_queue.isra.36+0x3c/0x60 [erofs]
  z_erofs_runqueue+0x5f3/0x840 [erofs]
  z_erofs_readahead+0x1e8/0x320 [erofs]
  read_pages+0x91/0x270
  page_cache_ra_unbounded+0x18b/0x240
  filemap_get_pages+0x10a/0x5f0
  filemap_read+0xa9/0x330
  new_sync_read+0x11b/0x1a0
  vfs_read+0xf1/0x190

Link: https://lore.kernel.org/r/20211103182006.4040-1-xiang@kernel.org
Fixes: 3883a79abd02 ("staging: erofs: introduce VLE decompression support")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/erofs/zdata.c | 13 +++++++------
 fs/erofs/zpvec.h | 13 ++++++++++---
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index ca27d3e47857b..8cb2cf612e49b 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -278,8 +278,8 @@ static inline bool z_erofs_try_inplace_io(struct z_erofs_collector *clt,
 
 /* callers must be with collection lock held */
 static int z_erofs_attach_page(struct z_erofs_collector *clt,
-			       struct page *page,
-			       enum z_erofs_page_type type)
+			       struct page *page, enum z_erofs_page_type type,
+			       bool pvec_safereuse)
 {
 	int ret;
 
@@ -289,9 +289,9 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
 	    z_erofs_try_inplace_io(clt, page))
 		return 0;
 
-	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type);
+	ret = z_erofs_pagevec_enqueue(&clt->vector, page, type,
+				      pvec_safereuse);
 	clt->cl->vcnt += (unsigned int)ret;
-
 	return ret ? 0 : -EAGAIN;
 }
 
@@ -645,7 +645,8 @@ hitted:
 		tight &= (clt->mode >= COLLECT_PRIMARY_FOLLOWED);
 
 retry:
-	err = z_erofs_attach_page(clt, page, page_type);
+	err = z_erofs_attach_page(clt, page, page_type,
+				  clt->mode >= COLLECT_PRIMARY_FOLLOWED);
 	/* should allocate an additional staging page for pagevec */
 	if (err == -EAGAIN) {
 		struct page *const newpage =
@@ -653,7 +654,7 @@ retry:
 
 		newpage->mapping = Z_EROFS_MAPPING_STAGING;
 		err = z_erofs_attach_page(clt, newpage,
-					  Z_EROFS_PAGE_TYPE_EXCLUSIVE);
+					  Z_EROFS_PAGE_TYPE_EXCLUSIVE, true);
 		if (!err)
 			goto retry;
 	}
diff --git a/fs/erofs/zpvec.h b/fs/erofs/zpvec.h
index 95a620739e6a6..52898176ef31d 100644
--- a/fs/erofs/zpvec.h
+++ b/fs/erofs/zpvec.h
@@ -107,11 +107,18 @@ static inline void z_erofs_pagevec_ctor_init(struct z_erofs_pagevec_ctor *ctor,
 
 static inline bool z_erofs_pagevec_enqueue(struct z_erofs_pagevec_ctor *ctor,
 					   struct page *page,
-					   enum z_erofs_page_type type)
+					   enum z_erofs_page_type type,
+					   bool pvec_safereuse)
 {
-	if (!ctor->next && type)
-		if (ctor->index + 1 == ctor->nr)
+	if (!ctor->next) {
+		/* some pages cannot be reused as pvec safely without I/O */
+		if (type == Z_EROFS_PAGE_TYPE_EXCLUSIVE && !pvec_safereuse)
+			type = Z_EROFS_VLE_PAGE_TYPE_TAIL_SHARED;
+
+		if (type != Z_EROFS_PAGE_TYPE_EXCLUSIVE &&
+		    ctor->index + 1 == ctor->nr)
 			return false;
+	}
 
 	if (ctor->index >= ctor->nr)
 		z_erofs_pagevec_ctor_pagedown(ctor, false);
-- 
GitLab


From df58fb431aa3b8371e11b27a94b20f8b765799c7 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Mon, 15 Nov 2021 09:43:23 -0700
Subject: [PATCH 1524/4878] scripts/lld-version.sh: Rewrite based on upstream
 ld-version.sh

This patch is for linux-5.10.y only.

When scripts/lld-version.sh was initially written, it did not account
for the LLD_VENDOR cmake flag, which changes the output of ld.lld's
--version flag slightly.

Without LLD_VENDOR:

$ ld.lld --version
LLD 14.0.0 (compatible with GNU linkers)

With LLD_VENDOR:

$ ld.lld --version
Debian LLD 14.0.0 (compatible with GNU linkers)

As a result, CONFIG_LLD_VERSION is messed up and configuration values
that are dependent on it cannot be selected:

scripts/lld-version.sh: 20: printf: LLD: expected numeric value
scripts/lld-version.sh: 20: printf: LLD: expected numeric value
scripts/lld-version.sh: 20: printf: LLD: expected numeric value
init/Kconfig:52:warning: 'LLD_VERSION': number is invalid
.config:11:warning: symbol value '00000' invalid for LLD_VERSION
.config:8800:warning: override: CPU_BIG_ENDIAN changes choice state

This was fixed upstream by commit 1f09af062556 ("kbuild: Fix
ld-version.sh script if LLD was built with LLD_VENDOR") in 5.12 but that
was done to ld-version.sh after it was massively rewritten in
commit 02aff8592204 ("kbuild: check the minimum linker version in
Kconfig").

To avoid bringing in that change plus its prerequisites and fixes, just
modify lld-version.sh to make it similar to the upstream ld-version.sh,
which handles ld.lld with or without LLD_VENDOR and ld.bfd without any
errors.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/lld-version.sh | 35 ++++++++++++++++++++++++++---------
 1 file changed, 26 insertions(+), 9 deletions(-)

diff --git a/scripts/lld-version.sh b/scripts/lld-version.sh
index d70edb4d8a4f2..f1eeee450a23c 100755
--- a/scripts/lld-version.sh
+++ b/scripts/lld-version.sh
@@ -6,15 +6,32 @@
 # Print the linker version of `ld.lld' in a 5 or 6-digit form
 # such as `100001' for ld.lld 10.0.1 etc.
 
-linker_string="$($* --version)"
+set -e
 
-if ! ( echo $linker_string | grep -q LLD ); then
+# Convert the version string x.y.z to a canonical 5 or 6-digit form.
+get_canonical_version()
+{
+	IFS=.
+	set -- $1
+
+	# If the 2nd or 3rd field is missing, fill it with a zero.
+	echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
+}
+
+# Get the first line of the --version output.
+IFS='
+'
+set -- $(LC_ALL=C "$@" --version)
+
+# Split the line on spaces.
+IFS=' '
+set -- $1
+
+while [ $# -gt 1 -a "$1" != "LLD" ]; do
+	shift
+done
+if [ "$1" = LLD ]; then
+	echo $(get_canonical_version ${2%-*})
+else
 	echo 0
-	exit 1
 fi
-
-VERSION=$(echo $linker_string | cut -d ' ' -f 2)
-MAJOR=$(echo $VERSION | cut -d . -f 1)
-MINOR=$(echo $VERSION | cut -d . -f 2)
-PATCHLEVEL=$(echo $VERSION | cut -d . -f 3)
-printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
-- 
GitLab


From bd40513d0bee24095948abfaa17d3ad8f444a85b Mon Sep 17 00:00:00 2001
From: Greg Thelen <gthelen@google.com>
Date: Wed, 10 Nov 2021 18:18:14 -0800
Subject: [PATCH 1525/4878] perf/core: Avoid put_page() when GUP fails

commit 4716023a8f6a0f4a28047f14dd7ebdc319606b84 upstream.

PEBS PERF_SAMPLE_PHYS_ADDR events use perf_virt_to_phys() to convert PMU
sampled virtual addresses to physical using get_user_page_fast_only()
and page_to_phys().

Some get_user_page_fast_only() error cases return false, indicating no
page reference, but still initialize the output page pointer with an
unreferenced page. In these error cases perf_virt_to_phys() calls
put_page(). This causes page reference count underflow, which can lead
to unintentional page sharing.

Fix perf_virt_to_phys() to only put_page() if get_user_page_fast_only()
returns a referenced page.

Fixes: fc7ce9c74c3ad ("perf/core, x86: Add PERF_SAMPLE_PHYS_ADDR")
Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211111021814.757086-1-gthelen@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/events/core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index c811519261710..908417736f4e9 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -7036,7 +7036,6 @@ void perf_output_sample(struct perf_output_handle *handle,
 static u64 perf_virt_to_phys(u64 virt)
 {
 	u64 phys_addr = 0;
-	struct page *p = NULL;
 
 	if (!virt)
 		return 0;
@@ -7055,14 +7054,15 @@ static u64 perf_virt_to_phys(u64 virt)
 		 * If failed, leave phys_addr as 0.
 		 */
 		if (current->mm != NULL) {
+			struct page *p;
+
 			pagefault_disable();
-			if (get_user_page_fast_only(virt, 0, &p))
+			if (get_user_page_fast_only(virt, 0, &p)) {
 				phys_addr = page_to_phys(p) + virt % PAGE_SIZE;
+				put_page(p);
+			}
 			pagefault_enable();
 		}
-
-		if (p)
-			put_page(p);
 	}
 
 	return phys_addr;
-- 
GitLab


From 6a315471cb6a07f651e1d3adc8962730f4fcccac Mon Sep 17 00:00:00 2001
From: Subbaraman Narayanamurthy <quic_subbaram@quicinc.com>
Date: Thu, 4 Nov 2021 16:57:07 -0700
Subject: [PATCH 1526/4878] thermal: Fix NULL pointer dereferences in
 of_thermal_ functions

commit 96cfe05051fd8543cdedd6807ec59a0e6c409195 upstream.

of_parse_thermal_zones() parses the thermal-zones node and registers a
thermal_zone device for each subnode. However, if a thermal zone is
consuming a thermal sensor and that thermal sensor device hasn't probed
yet, an attempt to set trip_point_*_temp for that thermal zone device
can cause a NULL pointer dereference. Fix it.

 console:/sys/class/thermal/thermal_zone87 # echo 120000 > trip_point_0_temp
 ...
 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
 ...
 Call trace:
  of_thermal_set_trip_temp+0x40/0xc4
  trip_point_temp_store+0xc0/0x1dc
  dev_attr_store+0x38/0x88
  sysfs_kf_write+0x64/0xc0
  kernfs_fop_write_iter+0x108/0x1d0
  vfs_write+0x2f4/0x368
  ksys_write+0x7c/0xec
  __arm64_sys_write+0x20/0x30
  el0_svc_common.llvm.7279915941325364641+0xbc/0x1bc
  do_el0_svc+0x28/0xa0
  el0_svc+0x14/0x24
  el0_sync_handler+0x88/0xec
  el0_sync+0x1c0/0x200

While at it, fix the possible NULL pointer dereference in other
functions as well: of_thermal_get_temp(), of_thermal_set_emul_temp(),
of_thermal_get_trend().

Suggested-by: David Collins <quic_collinsd@quicinc.com>
Signed-off-by: Subbaraman Narayanamurthy <quic_subbaram@quicinc.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/thermal/thermal_of.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 6379f26a335f6..9233f7e744544 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -89,7 +89,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	if (!data->ops->get_temp)
+	if (!data->ops || !data->ops->get_temp)
 		return -EINVAL;
 
 	return data->ops->get_temp(data->sensor_data, temp);
@@ -186,6 +186,9 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
 {
 	struct __thermal_zone *data = tz->devdata;
 
+	if (!data->ops || !data->ops->set_emul_temp)
+		return -EINVAL;
+
 	return data->ops->set_emul_temp(data->sensor_data, temp);
 }
 
@@ -194,7 +197,7 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	if (!data->ops->get_trend)
+	if (!data->ops || !data->ops->get_trend)
 		return -EINVAL;
 
 	return data->ops->get_trend(data->sensor_data, trip, trend);
@@ -301,7 +304,7 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
 	if (trip >= data->ntrips || trip < 0)
 		return -EDOM;
 
-	if (data->ops->set_trip_temp) {
+	if (data->ops && data->ops->set_trip_temp) {
 		int ret;
 
 		ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
-- 
GitLab


From 0685efd9840f7d017ea7cef1f49aa746329fa73d Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Fri, 29 Oct 2021 19:27:32 +0200
Subject: [PATCH 1527/4878] selftests/x86/iopl: Adjust to the faked iopl
 CLI/STI usage

commit a72fdfd21e01c626273ddcf5ab740d4caef4be54 upstream.

Commit in Fixes changed the iopl emulation to not #GP on CLI and STI
because it would break some insane luserspace tools which would toggle
interrupts.

The corresponding selftest would rely on the fact that executing CLI/STI
would trigger a #GP and thus detect it this way but since that #GP is
not happening anymore, the detection is now wrong too.

Extend the test to actually look at the IF flag and whether executing
those insns had any effect on it. The STI detection needs to have the
fact that interrupts were previously disabled, passed in so do that from
the previous CLI test, i.e., STI test needs to follow a previous CLI one
for it to make sense.

Fixes: b968e84b509d ("x86/iopl: Fake iopl(3) CLI/STI usage")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20211030083939.13073-1-bp@alien8.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/x86/iopl.c | 78 ++++++++++++++++++++++--------
 1 file changed, 58 insertions(+), 20 deletions(-)

diff --git a/tools/testing/selftests/x86/iopl.c b/tools/testing/selftests/x86/iopl.c
index bab2f6e06b63d..7e3e09c1abac6 100644
--- a/tools/testing/selftests/x86/iopl.c
+++ b/tools/testing/selftests/x86/iopl.c
@@ -85,48 +85,88 @@ static void expect_gp_outb(unsigned short port)
 	printf("[OK]\toutb to 0x%02hx failed\n", port);
 }
 
-static bool try_cli(void)
+#define RET_FAULTED	0
+#define RET_FAIL	1
+#define RET_EMUL	2
+
+static int try_cli(void)
 {
+	unsigned long flags;
+
 	sethandler(SIGSEGV, sigsegv, SA_RESETHAND);
 	if (sigsetjmp(jmpbuf, 1) != 0) {
-		return false;
+		return RET_FAULTED;
 	} else {
-		asm volatile ("cli");
-		return true;
+		asm volatile("cli; pushf; pop %[flags]"
+				: [flags] "=rm" (flags));
+
+		/* X86_FLAGS_IF */
+		if (!(flags & (1 << 9)))
+			return RET_FAIL;
+		else
+			return RET_EMUL;
 	}
 	clearhandler(SIGSEGV);
 }
 
-static bool try_sti(void)
+static int try_sti(bool irqs_off)
 {
+	unsigned long flags;
+
 	sethandler(SIGSEGV, sigsegv, SA_RESETHAND);
 	if (sigsetjmp(jmpbuf, 1) != 0) {
-		return false;
+		return RET_FAULTED;
 	} else {
-		asm volatile ("sti");
-		return true;
+		asm volatile("sti; pushf; pop %[flags]"
+				: [flags] "=rm" (flags));
+
+		/* X86_FLAGS_IF */
+		if (irqs_off && (flags & (1 << 9)))
+			return RET_FAIL;
+		else
+			return RET_EMUL;
 	}
 	clearhandler(SIGSEGV);
 }
 
-static void expect_gp_sti(void)
+static void expect_gp_sti(bool irqs_off)
 {
-	if (try_sti()) {
+	int ret = try_sti(irqs_off);
+
+	switch (ret) {
+	case RET_FAULTED:
+		printf("[OK]\tSTI faulted\n");
+		break;
+	case RET_EMUL:
+		printf("[OK]\tSTI NOPped\n");
+		break;
+	default:
 		printf("[FAIL]\tSTI worked\n");
 		nerrs++;
-	} else {
-		printf("[OK]\tSTI faulted\n");
 	}
 }
 
-static void expect_gp_cli(void)
+/*
+ * Returns whether it managed to disable interrupts.
+ */
+static bool test_cli(void)
 {
-	if (try_cli()) {
+	int ret = try_cli();
+
+	switch (ret) {
+	case RET_FAULTED:
+		printf("[OK]\tCLI faulted\n");
+		break;
+	case RET_EMUL:
+		printf("[OK]\tCLI NOPped\n");
+		break;
+	default:
 		printf("[FAIL]\tCLI worked\n");
 		nerrs++;
-	} else {
-		printf("[OK]\tCLI faulted\n");
+		return true;
 	}
+
+	return false;
 }
 
 int main(void)
@@ -152,8 +192,7 @@ int main(void)
 	}
 
 	/* Make sure that CLI/STI are blocked even with IOPL level 3 */
-	expect_gp_cli();
-	expect_gp_sti();
+	expect_gp_sti(test_cli());
 	expect_ok_outb(0x80);
 
 	/* Establish an I/O bitmap to test the restore */
@@ -204,8 +243,7 @@ int main(void)
 	printf("[RUN]\tparent: write to 0x80 (should fail)\n");
 
 	expect_gp_outb(0x80);
-	expect_gp_cli();
-	expect_gp_sti();
+	expect_gp_sti(test_cli());
 
 	/* Test the capability checks. */
 	printf("\tiopl(3)\n");
-- 
GitLab


From 99957dcea4e9702cc9060f576233ac1ac84c2a39 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 21 Nov 2021 13:46:37 +0100
Subject: [PATCH 1528/4878] Linux 5.10.81

Link: https://lore.kernel.org/r/20211119171443.892729043@linuxfoundation.org
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 71fdc74801e0a..1baeadb574f1c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 80
+SUBLEVEL = 81
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 66782a18054c813f970492c638663fd00b969e60 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Sun, 21 Nov 2021 14:52:36 +0100
Subject: [PATCH 1529/4878] ANDROID: GKI: disable CONFIG_FORTIFY_SOURCE

This build option is broken for clang and upstream removed it in commit
eaafc590053b ("fortify: Explicitly disable Clang support") so we have to
also remove it for the gki defconfigs.

Fixes: eaafc590053b ("fortify: Explicitly disable Clang support")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8d4a1d38b736ee1fd4a6febfbab4d1a3c1c4d351
---
 arch/arm64/configs/gki_defconfig | 1 -
 arch/x86/configs/gki_defconfig   | 1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 8bc814855d46c..20f304b00d916 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -645,7 +645,6 @@ CONFIG_SECURITYFS=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_HARDENED_USERCOPY=y
 # CONFIG_HARDENED_USERCOPY_FALLBACK is not set
-CONFIG_FORTIFY_SOURCE=y
 CONFIG_STATIC_USERMODEHELPER=y
 CONFIG_STATIC_USERMODEHELPER_PATH=""
 CONFIG_SECURITY_SELINUX=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 1502c4c84b6a1..f713bebb5dca0 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -577,7 +577,6 @@ CONFIG_SECURITYFS=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_HARDENED_USERCOPY=y
 # CONFIG_HARDENED_USERCOPY_FALLBACK is not set
-CONFIG_FORTIFY_SOURCE=y
 CONFIG_STATIC_USERMODEHELPER=y
 CONFIG_STATIC_USERMODEHELPER_PATH=""
 CONFIG_SECURITY_SELINUX=y
-- 
GitLab


From 92a882bcdff8cbd7f9fa5fcc037ba4766c3baf54 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 18 Nov 2021 16:09:09 -0800
Subject: [PATCH 1530/4878] ANDROID: fips140: refactor evaluation testing
 support

It turns out that we have to add more code to the module to support lab
evaluation testing, beyond the error injection support we currently
have.  Therefore, rename CONFIG_CRYPTO_FIPS140_MOD_ERROR_INJECTION to
CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING, and move the relevant code into
a new file fips140-eval-testing.c which is conditionally compiled.

Also rename the "broken_alg" module parameter to "fail_selftest" so that
it is similar to "fail_integrity_check" which we'll be adding.

Bug: 188620248
Change-Id: I01bcbf7525690e277854ba4ed8dd89e7cd08d98e
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/Kconfig                | 12 ++++++------
 crypto/Makefile               |  3 +++
 crypto/fips140-eval-testing.c | 31 +++++++++++++++++++++++++++++++
 crypto/fips140-module.c       | 12 +++---------
 crypto/fips140-module.h       | 25 ++++++++++++++++++-------
 crypto/fips140-selftests.c    |  6 +-----
 6 files changed, 62 insertions(+), 27 deletions(-)
 create mode 100644 crypto/fips140-eval-testing.c

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 7dc84953713d2..a86d17ebe6faf 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -53,14 +53,14 @@ config CRYPTO_FIPS140_MOD
 	  meet FIPS 140 and NIAP FPT_TST_EXT.1 requirements.  It shouldn't be
 	  used if you don't need to meet these requirements.
 
-config CRYPTO_FIPS140_MOD_ERROR_INJECTION
-	bool "Support injecting failures into the FIPS 140 self-tests"
+config CRYPTO_FIPS140_MOD_EVAL_TESTING
+	bool "Enable evaluation testing features in FIPS 140 module"
 	depends on CRYPTO_FIPS140_MOD
 	help
-	  This option adds a module parameter "broken_alg" to the fips140 module
-	  which can be used to fail the self-tests for a particular algorithm,
-	  causing a kernel panic.  This option is for FIPS lab testing only, and
-	  it shouldn't be enabled on production systems.
+	  This option adds some features to the FIPS 140 module which are needed
+	  for lab evaluation testing of the module, e.g. support for injecting
+	  errors and support for a userspace interface to some of the module's
+	  services.  This option should not be enabled in production builds.
 
 config CRYPTO_ALGAPI
 	tristate
diff --git a/crypto/Makefile b/crypto/Makefile
index 9ada957d4cbd8..f8a3677d2eecf 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -239,11 +239,14 @@ fips140-objs := \
 	fips140-refs.o \
 	fips140-selftests.o \
 	crypto-fips.a
+fips140-$(CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING) += \
+	fips140-eval-testing.o
 obj-m += fips140.o
 
 CFLAGS_fips140-alg-registration.o += $(FIPS140_CFLAGS)
 CFLAGS_fips140-module.o += $(FIPS140_CFLAGS)
 CFLAGS_fips140-selftests.o += $(FIPS140_CFLAGS)
+CFLAGS_fips140-eval-testing.o += $(FIPS140_CFLAGS)
 
 hostprogs-always-y := fips140_gen_hmac
 HOSTLDLIBS_fips140_gen_hmac := -lcrypto -lelf
diff --git a/crypto/fips140-eval-testing.c b/crypto/fips140-eval-testing.c
new file mode 100644
index 0000000000000..fbcd4cc633d53
--- /dev/null
+++ b/crypto/fips140-eval-testing.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2021 Google LLC
+ *
+ * This file can optionally be built into fips140.ko in order to support certain
+ * types of testing that the FIPS lab has to do to evaluate the module.  It
+ * should not be included in production builds of the module.
+ */
+
+#include <linux/module.h>
+
+#include "fips140-module.h"
+
+/*
+ * This option allows deliberately failing the self-tests for a particular
+ * algorithm.
+ */
+static char *fips140_fail_selftest;
+module_param_named(fail_selftest, fips140_fail_selftest, charp, 0);
+
+/* Inject a self-test failure (via corrupting the result) if requested. */
+void fips140_inject_selftest_failure(const char *impl, u8 *result)
+{
+	if (fips140_fail_selftest && strcmp(impl, fips140_fail_selftest) == 0)
+		result[0] ^= 0xff;
+}
+
+bool fips140_eval_testing_init(void)
+{
+	return true;
+}
diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 5e42891fbd0d3..4ebcf12a8b2aa 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -29,15 +29,6 @@
 #include "fips140-module.h"
 #include "internal.h"
 
-/*
- * This option allows deliberately failing the self-tests for a particular
- * algorithm.  This is for FIPS lab testing only.
- */
-#ifdef CONFIG_CRYPTO_FIPS140_MOD_ERROR_INJECTION
-char *fips140_broken_alg;
-module_param_named(broken_alg, fips140_broken_alg, charp, 0);
-#endif
-
 /*
  * FIPS 140-2 prefers the use of HMAC with a public key over a plain hash.
  */
@@ -545,6 +536,9 @@ fips140_init(void)
 	if (!update_fips140_library_routines())
 		goto panic;
 
+	if (!fips140_eval_testing_init())
+		goto panic;
+
 	pr_info("module successfully loaded\n");
 	return 0;
 
diff --git a/crypto/fips140-module.h b/crypto/fips140-module.h
index b83547726a0ff..92e2ff1ffbca5 100644
--- a/crypto/fips140-module.h
+++ b/crypto/fips140-module.h
@@ -20,16 +20,27 @@
 #define FIPS140_MODULE_NAME "Android Kernel Cryptographic Module"
 #define FIPS140_MODULE_VERSION UTS_RELEASE
 
-#ifdef CONFIG_CRYPTO_FIPS140_MOD_ERROR_INJECTION
-extern char *fips140_broken_alg;
-#endif
-
+/* fips140-eval-testing.c */
+#ifdef CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING
+void fips140_inject_selftest_failure(const char *impl, u8 *result);
+bool fips140_eval_testing_init(void);
+#else
+static inline void fips140_inject_selftest_failure(const char *impl, u8 *result)
+{
+}
+static inline bool fips140_eval_testing_init(void)
+{
+	return true;
+}
+#endif /* !CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING */
+
+/* fips140-module.c */
 extern struct completion fips140_tests_done;
 extern struct task_struct *fips140_init_thread;
-
-bool __init __must_check fips140_run_selftests(void);
-
 bool fips140_is_approved_service(const char *name);
 const char *fips140_module_version(void);
 
+/* fips140-selftests.c */
+bool __init __must_check fips140_run_selftests(void);
+
 #endif /* _CRYPTO_FIPS140_MODULE_H */
diff --git a/crypto/fips140-selftests.c b/crypto/fips140-selftests.c
index 0ab388a9f213e..56c503cacc414 100644
--- a/crypto/fips140-selftests.c
+++ b/crypto/fips140-selftests.c
@@ -146,11 +146,7 @@ static int __init __must_check
 fips_check_result(u8 *result, const u8 *expected_result, size_t result_size,
 		  const char *impl, const char *operation)
 {
-#ifdef CONFIG_CRYPTO_FIPS140_MOD_ERROR_INJECTION
-	/* Inject a failure (via corrupting the result) if requested. */
-	if (fips140_broken_alg && strcmp(impl, fips140_broken_alg) == 0)
-		result[0] ^= 0xff;
-#endif
+	fips140_inject_selftest_failure(impl, result);
 	if (memcmp(result, expected_result, result_size) != 0) {
 		pr_err("wrong result from %s %s\n", impl, operation);
 		return -EBADMSG;
-- 
GitLab


From d9b9eb55911338cb2712c782b4ee6170279561db Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 18 Nov 2021 16:09:10 -0800
Subject: [PATCH 1531/4878] ANDROID: fips140: add support for injecting
 integrity error

The lab is required to test injecting an integrity error, so add a
module parameter fail_integrity_check=1 which does this.  This parameter
is only supported when CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING=y.

Bug: 188620248
Change-Id: I1f3683837706dc1df2755ca5b6e88f21f7956135
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-eval-testing.c | 11 +++++++++++
 crypto/fips140-module.c       |  2 ++
 crypto/fips140-module.h       |  4 ++++
 3 files changed, 17 insertions(+)

diff --git a/crypto/fips140-eval-testing.c b/crypto/fips140-eval-testing.c
index fbcd4cc633d53..ef8edd0d13028 100644
--- a/crypto/fips140-eval-testing.c
+++ b/crypto/fips140-eval-testing.c
@@ -18,6 +18,10 @@
 static char *fips140_fail_selftest;
 module_param_named(fail_selftest, fips140_fail_selftest, charp, 0);
 
+/* This option allows deliberately failing the integrity check. */
+static bool fips140_fail_integrity_check;
+module_param_named(fail_integrity_check, fips140_fail_integrity_check, bool, 0);
+
 /* Inject a self-test failure (via corrupting the result) if requested. */
 void fips140_inject_selftest_failure(const char *impl, u8 *result)
 {
@@ -25,6 +29,13 @@ void fips140_inject_selftest_failure(const char *impl, u8 *result)
 		result[0] ^= 0xff;
 }
 
+/* Inject an integrity check failure (via corrupting the text) if requested. */
+void fips140_inject_integrity_failure(u8 *textcopy)
+{
+	if (fips140_fail_integrity_check)
+		textcopy[0] ^= 0xff;
+}
+
 bool fips140_eval_testing_init(void)
 {
 	return true;
diff --git a/crypto/fips140-module.c b/crypto/fips140-module.c
index 4ebcf12a8b2aa..cd854fe28845b 100644
--- a/crypto/fips140-module.c
+++ b/crypto/fips140-module.c
@@ -388,6 +388,8 @@ static bool __init check_fips140_module_hmac(void)
 				  offset_to_ptr(&fips140_rela_rodata.offset),
 				  fips140_rela_rodata.count);
 
+	fips140_inject_integrity_failure(textcopy);
+
 	tfm = crypto_alloc_shash("hmac(sha256)", 0, 0);
 	if (IS_ERR(tfm)) {
 		pr_err("failed to allocate hmac tfm (%ld)\n", PTR_ERR(tfm));
diff --git a/crypto/fips140-module.h b/crypto/fips140-module.h
index 92e2ff1ffbca5..a2a63194eb648 100644
--- a/crypto/fips140-module.h
+++ b/crypto/fips140-module.h
@@ -23,11 +23,15 @@
 /* fips140-eval-testing.c */
 #ifdef CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING
 void fips140_inject_selftest_failure(const char *impl, u8 *result);
+void fips140_inject_integrity_failure(u8 *textcopy);
 bool fips140_eval_testing_init(void);
 #else
 static inline void fips140_inject_selftest_failure(const char *impl, u8 *result)
 {
 }
+static inline void fips140_inject_integrity_failure(u8 *textcopy)
+{
+}
 static inline bool fips140_eval_testing_init(void)
 {
 	return true;
-- 
GitLab


From a66e62cc8259da03fe10eb9708dcef7ed01c6701 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 18 Nov 2021 16:09:11 -0800
Subject: [PATCH 1532/4878] ANDROID: fips140: add userspace interface for
 evaluation testing

The FIPS lab is required to test the service indicators and version
information services of the module, i.e. the
fips140_is_approved_service() and fips140_module_version() functions.
There are several ways we could support this:

- Implement the tests in the module ourselves.  However it's unclear
  that CMVP would allow this, and we would need the full list of tests,
  which could change over time depending on what the lab decides to do.

- Support the lab writing, building, and loading a custom kernel module
  (or a custom kernel image) that tests these functions.

- Provide a userspace interface to these services, restricted to builds
  with CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING=y.  This would allow
  writing the tests in userspace, which would be much easier.

Implement the last solution, since it's the easier of the two solutions
that are "guaranteed" to be allowed.  Make the module register a char
device which supports some ioctls, one per function that needs to be
tested.  Also provide some sample userspace code in samples/crypto/.

Note: copy_to_user() would break the integrity check, so take some care
to exclude it.  This is allowed since this is non-production code.

Bug: 188620248
Change-Id: Ic256d9c5bd4d0c57ede88a3e3e76e89554909b38
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/fips140-eval-testing-uapi.h |  30 +++++
 crypto/fips140-eval-testing.c      |  87 ++++++++++++++
 samples/crypto/fips140_lab_test.c  | 187 +++++++++++++++++++++++++++++
 scripts/module.lds.S               |   1 +
 4 files changed, 305 insertions(+)
 create mode 100644 crypto/fips140-eval-testing-uapi.h
 create mode 100644 samples/crypto/fips140_lab_test.c

diff --git a/crypto/fips140-eval-testing-uapi.h b/crypto/fips140-eval-testing-uapi.h
new file mode 100644
index 0000000000000..04e6cf633594a
--- /dev/null
+++ b/crypto/fips140-eval-testing-uapi.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+
+#ifndef _CRYPTO_FIPS140_EVAL_TESTING_H
+#define _CRYPTO_FIPS140_EVAL_TESTING_H
+
+#include <linux/ioctl.h>
+
+/*
+ * This header defines the ioctls that are available on the fips140 character
+ * device.  These ioctls expose some of the module's services to userspace so
+ * that they can be tested by the FIPS certification lab; this is a required
+ * part of getting a FIPS 140 certification.  These ioctls do not have any other
+ * purpose, and they do not need to be present in production builds.
+ */
+
+/*
+ * Call the fips140_is_approved_service() function.  The argument must be the
+ * service name as a NUL-terminated string.  The return value will be 1 if
+ * fips140_is_approved_service() returned true, or 0 if it returned false.
+ */
+#define FIPS140_IOCTL_IS_APPROVED_SERVICE	_IO('F', 0)
+
+/*
+ * Call the fips140_module_version() function.  The argument must be a pointer
+ * to a buffer of size >= 256 chars.  The NUL-terminated string returned by
+ * fips140_module_version() will be written to this buffer.
+ */
+#define FIPS140_IOCTL_MODULE_VERSION		_IOR('F', 1, char[256])
+
+#endif /* _CRYPTO_FIPS140_EVAL_TESTING_H */
diff --git a/crypto/fips140-eval-testing.c b/crypto/fips140-eval-testing.c
index ef8edd0d13028..ea3cd653983a0 100644
--- a/crypto/fips140-eval-testing.c
+++ b/crypto/fips140-eval-testing.c
@@ -7,9 +7,26 @@
  * should not be included in production builds of the module.
  */
 
+/*
+ * We have to redefine inline to mean always_inline, so that _copy_to_user()
+ * gets inlined.  This is needed for it to be placed into the correct section.
+ * See fips140_copy_to_user().
+ *
+ * We also need to undefine BUILD_FIPS140_KO to allow the use of the code
+ * patching which copy_to_user() requires.
+ */
+#undef inline
+#define inline inline __attribute__((__always_inline__)) __gnu_inline \
+       __inline_maybe_unused notrace
+#undef BUILD_FIPS140_KO
+
+#include <linux/cdev.h>
+#include <linux/fs.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 
 #include "fips140-module.h"
+#include "fips140-eval-testing-uapi.h"
 
 /*
  * This option allows deliberately failing the self-tests for a particular
@@ -22,6 +39,9 @@ module_param_named(fail_selftest, fips140_fail_selftest, charp, 0);
 static bool fips140_fail_integrity_check;
 module_param_named(fail_integrity_check, fips140_fail_integrity_check, bool, 0);
 
+static dev_t fips140_devnum;
+static struct cdev fips140_cdev;
+
 /* Inject a self-test failure (via corrupting the result) if requested. */
 void fips140_inject_selftest_failure(const char *impl, u8 *result)
 {
@@ -36,7 +56,74 @@ void fips140_inject_integrity_failure(u8 *textcopy)
 		textcopy[0] ^= 0xff;
 }
 
+static long fips140_ioctl_is_approved_service(unsigned long arg)
+{
+	const char *service_name = strndup_user((const char __user *)arg, 256);
+	long ret;
+
+	if (IS_ERR(service_name))
+		return PTR_ERR(service_name);
+
+	ret = fips140_is_approved_service(service_name);
+
+	kfree(service_name);
+	return ret;
+}
+
+/*
+ * Code in fips140.ko is covered by an integrity check by default, and this
+ * check breaks if copy_to_user() is called.  This is because copy_to_user() is
+ * an inline function that relies on code patching.  However, since this is
+ * "evaluation testing" code which isn't included in the production builds of
+ * fips140.ko, it's acceptable to just exclude it from the integrity check.
+ */
+static noinline unsigned long __section("text.._fips140_unchecked")
+fips140_copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	return copy_to_user(to, from, n);
+}
+
+static long fips140_ioctl_module_version(unsigned long arg)
+{
+	const char *version = fips140_module_version();
+	size_t len = strlen(version) + 1;
+
+	if (len > 256)
+		return -EOVERFLOW;
+
+	if (fips140_copy_to_user((void __user *)arg, version, len))
+		return -EFAULT;
+
+	return 0;
+}
+
+static long fips140_ioctl(struct file *file, unsigned int cmd,
+			  unsigned long arg)
+{
+	switch (cmd) {
+	case FIPS140_IOCTL_IS_APPROVED_SERVICE:
+		return fips140_ioctl_is_approved_service(arg);
+	case FIPS140_IOCTL_MODULE_VERSION:
+		return fips140_ioctl_module_version(arg);
+	default:
+		return -ENOTTY;
+	}
+}
+
+static const struct file_operations fips140_fops = {
+	.unlocked_ioctl = fips140_ioctl,
+};
+
 bool fips140_eval_testing_init(void)
 {
+	if (alloc_chrdev_region(&fips140_devnum, 1, 1, "fips140") != 0) {
+		pr_err("failed to allocate device number\n");
+		return false;
+	}
+	cdev_init(&fips140_cdev, &fips140_fops);
+	if (cdev_add(&fips140_cdev, fips140_devnum, 1) != 0) {
+		pr_err("failed to add fips140 character device\n");
+		return false;
+	}
 	return true;
 }
diff --git a/samples/crypto/fips140_lab_test.c b/samples/crypto/fips140_lab_test.c
new file mode 100644
index 0000000000000..dd2324b8f84a9
--- /dev/null
+++ b/samples/crypto/fips140_lab_test.c
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2021 Google LLC
+ *
+ * This is a sample program which calls some ioctls on /dev/fips140 and prints
+ * the results.  The purpose of this program is to allow the FIPS certification
+ * lab to test some services of fips140.ko, which they are required to do.  This
+ * is a sample program only, and it can be modified by the lab as needed.  This
+ * program must be run as root, and it only works if the system has loaded a
+ * build of fips140.ko with evaluation testing support enabled.
+ *
+ * This program can be compiled and run on an Android device as follows:
+ *
+ *	NDK_DIR=$HOME/android-ndk-r23b  # adjust directory path as needed
+ *	$NDK_DIR/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android31-clang \
+ *		fips140_lab_test.c -O2 -Wall -o fips140_lab_test
+ *	adb push fips140_lab_test /data/local/tmp/
+ *	adb root
+ *	adb shell /data/local/tmp/fips140_lab_test
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <unistd.h>
+
+#include "../../crypto/fips140-eval-testing-uapi.h"
+
+static int fips140_dev_fd = -1;
+
+#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))
+
+static const char *booltostr(bool b)
+{
+	return b ? "true" : "false";
+}
+
+static void __attribute__((noreturn))
+do_die(const char *format, va_list va, int err)
+{
+	fputs("ERROR: ", stderr);
+	vfprintf(stderr, format, va);
+	if (err)
+		fprintf(stderr, ": %s", strerror(err));
+	putc('\n', stderr);
+	exit(1);
+}
+
+static void __attribute__((noreturn, format(printf, 1, 2)))
+die_errno(const char *format, ...)
+{
+	va_list va;
+
+	va_start(va, format);
+	do_die(format, va, errno);
+	va_end(va);
+}
+
+static void __attribute__((noreturn, format(printf, 1, 2)))
+die(const char *format, ...)
+{
+	va_list va;
+
+	va_start(va, format);
+	do_die(format, va, 0);
+	va_end(va);
+}
+
+static int get_fips140_device_number(void)
+{
+	FILE *f;
+	char line[128];
+	int number;
+	char name[32];
+
+	f = fopen("/proc/devices", "r");
+	if (!f)
+		die_errno("failed to open /proc/devices");
+	while (fgets(line, sizeof(line), f)) {
+		if (sscanf(line, "%d %31s", &number, name) == 2 &&
+		    strcmp(name, "fips140") == 0)
+			return number;
+	}
+	fclose(f);
+	die("fips140 device node is unavailable.\n"
+"The fips140 device node is only available when the fips140 module is loaded\n"
+"and has been built with evaluation testing support.");
+}
+
+static void create_fips140_node_if_needed(void)
+{
+	struct stat stbuf;
+	int major;
+
+	if (stat("/dev/fips140", &stbuf) == 0)
+		return;
+
+	major = get_fips140_device_number();
+	if (mknod("/dev/fips140", S_IFCHR | 0600, makedev(major, 1)) != 0)
+		die_errno("failed to create fips140 device node");
+}
+
+static bool fips140_is_approved_service(const char *name)
+{
+	int ret = ioctl(fips140_dev_fd, FIPS140_IOCTL_IS_APPROVED_SERVICE, name);
+
+	if (ret < 0)
+		die_errno("FIPS140_IOCTL_IS_APPROVED_SERVICE unexpectedly failed");
+	if (ret == 1)
+		return true;
+	if (ret == 0)
+		return false;
+	die("FIPS140_IOCTL_IS_APPROVED_SERVICE returned unexpected value %d",
+	    ret);
+}
+
+static const char *fips140_module_version(void)
+{
+	char buf[256];
+	char *str;
+	int ret = ioctl(fips140_dev_fd, FIPS140_IOCTL_MODULE_VERSION, buf);
+
+	if (ret < 0)
+		die_errno("FIPS140_IOCTL_MODULE_VERSION unexpectedly failed");
+	if (ret != 0)
+		die("FIPS140_IOCTL_MODULE_VERSION returned unexpected value %d", ret);
+	str = strdup(buf);
+	if (!str)
+		die("out of memory");
+	return str;
+}
+
+static const char * const services_to_check[] = {
+	"aes",
+	"cbc(aes)",
+	"cbcmac(aes)",
+	"cmac(aes)",
+	"ctr(aes)",
+	"cts(cbc(aes))",
+	"ecb(aes)",
+	"essiv(cbc(aes),sha256)",
+	"gcm(aes)",
+	"hmac(sha1)",
+	"hmac(sha224)",
+	"hmac(sha256)",
+	"hmac(sha384)",
+	"hmac(sha512)",
+	"jitterentropy_rng",
+	"sha1",
+	"sha224",
+	"sha256",
+	"sha384",
+	"sha512",
+	"stdrng",
+	"xcbc(aes)",
+	"xts(aes)",
+};
+
+int main(void)
+{
+	size_t i;
+
+	if (getuid() != 0)
+		die("This program requires root.  Run 'adb root' first.");
+
+	create_fips140_node_if_needed();
+
+	fips140_dev_fd = open("/dev/fips140", O_RDONLY);
+	if (fips140_dev_fd < 0)
+		die_errno("failed to open /dev/fips140");
+
+	printf("fips140_module_version() => \"%s\"\n", fips140_module_version());
+	for (i = 0; i < ARRAY_SIZE(services_to_check); i++) {
+		const char *service = services_to_check[i];
+
+		printf("fips140_is_approved_service(\"%s\") => %s\n", service,
+		       booltostr(fips140_is_approved_service(service)));
+	}
+	return 0;
+}
diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index 8b9dcec11d1e3..6cca5d88744eb 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -71,6 +71,7 @@ SECTIONS {
 		*(.text..L.cfi.jumptable .text..L.cfi.jumptable.*)
 		__cfi_jt_end = .;
 		*(.text.._end)
+		*(.text.._fips140_unchecked)
 	}
 #endif
 }
-- 
GitLab


From edb683233c6fb3bcd85962d504131079f0857c3a Mon Sep 17 00:00:00 2001
From: Shiyong Li <shiyongli@google.com>
Date: Thu, 18 Nov 2021 23:30:33 +0000
Subject: [PATCH 1533/4878] ANDROID: GKI: Update the ABI symbol list

add drm dsc pps calculation function.

Bug: 204493377
Test: build pass

Signed-off-by: Shiyong Li <shiyongli@google.com>
Change-Id: Ife987aeb4d24b894dd5b91014a292e8b79a9af49
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 222af81d4211f..79524e839df15 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -627,6 +627,7 @@
   drm_dev_register
   drm_dev_unregister
   drm_display_mode_to_videomode
+  drm_dsc_pps_payload_pack
   drm_encoder_cleanup
   drm_encoder_init
   __drm_err
-- 
GitLab


From 478f3ee1d3e5be03ecd3603643abfc1186468881 Mon Sep 17 00:00:00 2001
From: Xuewen Yan <xuewen.yan@unisoc.com>
Date: Wed, 24 Nov 2021 14:27:27 +0800
Subject: [PATCH 1534/4878] ANDROID: Add vendor hook to the deadline scheduler

android_rvh_select_task_rq_dl:
    To perform vendor-specific DL task placement.

Bug: 207585485
Test: build pass

Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Change-Id: Ibe147276b52a1be877802a2e53e87ba3eb8c9161
---
 drivers/android/vendor_hooks.c | 1 +
 include/trace/hooks/sched.h    | 4 ++++
 kernel/sched/deadline.c        | 6 ++++++
 3 files changed, 11 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 86d05e5ee82ed..f315991e8df2e 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -79,6 +79,7 @@
  */
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_fair);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_rt);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_dl);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_fallback_rq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_refrigerator);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_scheduler_tick);
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index 3b7d022c4328a..12ea85521d207 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -19,6 +19,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_select_task_rq_rt,
 	TP_PROTO(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags, int *new_cpu),
 	TP_ARGS(p, prev_cpu, sd_flag, wake_flags, new_cpu), 1);
 
+DECLARE_RESTRICTED_HOOK(android_rvh_select_task_rq_dl,
+	TP_PROTO(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags, int *new_cpu),
+	TP_ARGS(p, prev_cpu, sd_flag, wake_flags, new_cpu), 1);
+
 DECLARE_RESTRICTED_HOOK(android_rvh_select_fallback_rq,
 	TP_PROTO(int cpu, struct task_struct *p, int *new_cpu),
 	TP_ARGS(cpu, p, new_cpu), 1);
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 16230441b47af..2e45335678aef 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -17,6 +17,7 @@
  */
 #include "sched.h"
 #include "pelt.h"
+#include <trace/hooks/sched.h>
 
 struct dl_bandwidth def_dl_bandwidth;
 
@@ -1675,6 +1676,11 @@ select_task_rq_dl(struct task_struct *p, int cpu, int sd_flag, int flags)
 	struct task_struct *curr;
 	bool select_rq;
 	struct rq *rq;
+	int target_cpu = -1;
+
+	trace_android_rvh_select_task_rq_dl(p, cpu, sd_flag, flags, &target_cpu);
+	if (target_cpu >= 0)
+		return target_cpu;
 
 	if (sd_flag != SD_BALANCE_WAKE)
 		goto out;
-- 
GitLab


From 5228cb193dd943f5c71d7337665ae36c54207d54 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 25 Nov 2021 11:52:14 +0000
Subject: [PATCH 1535/4878] ANDROID: usb: gadget: f_accessory: Mitgate handling
 of non-existent USB request

Prevents mishandling USB requests that are no longer present.

Bug: 161010552
Fixes: 483cb5629ea78 ("ANDROID: usb: gadget: f_accessory: Add Android Accessory function")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I8ff24d6d49214c3bd10a1b5d5e72814ec2a91c61
---
 drivers/usb/gadget/function/f_accessory.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/function/f_accessory.c b/drivers/usb/gadget/function/f_accessory.c
index f41214c152850..66a603f3327d6 100644
--- a/drivers/usb/gadget/function/f_accessory.c
+++ b/drivers/usb/gadget/function/f_accessory.c
@@ -678,8 +678,11 @@ fail:
 	pr_err("acc_bind() could not allocate requests\n");
 	while ((req = req_get(dev, &dev->tx_idle)))
 		acc_request_free(req, dev->ep_in);
-	for (i = 0; i < RX_REQ_MAX; i++)
+	for (i = 0; i < RX_REQ_MAX; i++) {
 		acc_request_free(dev->rx_req[i], dev->ep_out);
+		dev->rx_req[i] = NULL;
+	}
+
 	return -1;
 }
 
@@ -711,6 +714,12 @@ static ssize_t acc_read(struct file *fp, char __user *buf,
 		goto done;
 	}
 
+	if (!dev->rx_req[0]) {
+		pr_warn("acc_read: USB request already handled/freed");
+		r = -EINVAL;
+		goto done;
+	}
+
 	/*
 	 * Calculate the data length by considering termination character.
 	 * Then compansite the difference of rounding up to
@@ -1187,8 +1196,10 @@ acc_function_unbind(struct usb_configuration *c, struct usb_function *f)
 
 	while ((req = req_get(dev, &dev->tx_idle)))
 		acc_request_free(req, dev->ep_in);
-	for (i = 0; i < RX_REQ_MAX; i++)
+	for (i = 0; i < RX_REQ_MAX; i++) {
 		acc_request_free(dev->rx_req[i], dev->ep_out);
+		dev->rx_req[i] = NULL;
+	}
 
 	acc_hid_unbind(dev);
 }
-- 
GitLab


From 48f154e8b94aacecaec1a190943add63e4bec221 Mon Sep 17 00:00:00 2001
From: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Date: Mon, 14 Jun 2021 17:25:10 +0200
Subject: [PATCH 1536/4878] arm64: zynqmp: Do not duplicate flash partition
 label property

[ Upstream commit 167721a5909f867f8c18c8e78ea58e705ad9bbd4 ]

In kernel 5.4, support has been added for reading MTD devices via the nvmem
API.
For this the mtd devices are registered as read-only NVMEM providers under
sysfs with the same name as the flash partition label property.

So if flash partition label property of multiple flash devices are
identical then the second mtd device fails to get registered as a NVMEM
provider.

This patch fixes the issue by having different label property for different
flashes.

Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/6c4b9b9232b93d9e316a63c086540fd5bf6b8687.1623684253.git.michal.simek@xilinx.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts
index 4a86efa32d687..f7124e15f0ff6 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts
@@ -131,7 +131,7 @@
 		reg = <0>;
 
 		partition@0 {
-			label = "data";
+			label = "spi0-data";
 			reg = <0x0 0x100000>;
 		};
 	};
@@ -149,7 +149,7 @@
 		reg = <0>;
 
 		partition@0 {
-			label = "data";
+			label = "spi1-data";
 			reg = <0x0 0x84000>;
 		};
 	};
-- 
GitLab


From e2e10563126577ee8cceceb1258040e6c13bd3fe Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Fri, 6 Aug 2021 10:58:29 +0200
Subject: [PATCH 1537/4878] arm64: zynqmp: Fix serial compatible string

[ Upstream commit 812fa2f0e9d33564bd0131a69750e0d165f4c82a ]

Based on commit 65a2c14d4f00 ("dt-bindings: serial: convert Cadence UART
bindings to YAML") compatible string should look like differently that's
why fix it to be aligned with dt binding.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/89b36e0a6187cc6b05b27a035efdf79173bd4486.1628240307.git.michal.simek@xilinx.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index 771f60e0346d0..9e198cacc37dd 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -688,7 +688,7 @@
 		};
 
 		uart0: serial@ff000000 {
-			compatible = "cdns,uart-r1p12", "xlnx,xuartps";
+			compatible = "xlnx,zynqmp-uart", "cdns,uart-r1p12";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 21 4>;
@@ -698,7 +698,7 @@
 		};
 
 		uart1: serial@ff010000 {
-			compatible = "cdns,uart-r1p12", "xlnx,xuartps";
+			compatible = "xlnx,zynqmp-uart", "cdns,uart-r1p12";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 22 4>;
-- 
GitLab


From aed195558f941b49102facef824aacf5fcbe0bf5 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 1 Sep 2021 11:18:42 +0200
Subject: [PATCH 1538/4878] ARM: dts: sunxi: Fix OPPs node name

[ Upstream commit ffbe853a3f5a37fa0a511265b21abf097ffdbe45 ]

The operating-points-v2 nodes are named inconsistently, but mostly
either opp_table0 or gpu-opp-table.  However, the underscore is an
invalid character for a node name and the thermal zone binding
explicitly requires that zones are called opp-table-*. Let's fix it.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20210901091852.479202-43-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/sun8i-a33.dtsi                      | 4 ++--
 arch/arm/boot/dts/sun8i-a83t.dtsi                     | 4 ++--
 arch/arm/boot/dts/sun8i-h3.dtsi                       | 4 ++--
 arch/arm64/boot/dts/allwinner/sun50i-a64-cpu-opp.dtsi | 2 +-
 arch/arm64/boot/dts/allwinner/sun50i-h5-cpu-opp.dtsi  | 2 +-
 arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi  | 2 +-
 6 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index c458f5fb124fb..46f4242e9f95d 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -46,7 +46,7 @@
 #include <dt-bindings/thermal/thermal.h>
 
 / {
-	cpu0_opp_table: opp_table0 {
+	cpu0_opp_table: opp-table-cpu {
 		compatible = "operating-points-v2";
 		opp-shared;
 
@@ -164,7 +164,7 @@
 		io-channels = <&ths>;
 	};
 
-	mali_opp_table: gpu-opp-table {
+	mali_opp_table: opp-table-gpu {
 		compatible = "operating-points-v2";
 
 		opp-144000000 {
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
index c010b27fdb6a6..a746e449b0bae 100644
--- a/arch/arm/boot/dts/sun8i-a83t.dtsi
+++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
@@ -200,7 +200,7 @@
 		status = "disabled";
 	};
 
-	cpu0_opp_table: opp_table0 {
+	cpu0_opp_table: opp-table-cluster0 {
 		compatible = "operating-points-v2";
 		opp-shared;
 
@@ -253,7 +253,7 @@
 		};
 	};
 
-	cpu1_opp_table: opp_table1 {
+	cpu1_opp_table: opp-table-cluster1 {
 		compatible = "operating-points-v2";
 		opp-shared;
 
diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
index 4e89701df91f8..ae4f933abb895 100644
--- a/arch/arm/boot/dts/sun8i-h3.dtsi
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi
@@ -44,7 +44,7 @@
 #include <dt-bindings/thermal/thermal.h>
 
 / {
-	cpu0_opp_table: opp_table0 {
+	cpu0_opp_table: opp-table-cpu {
 		compatible = "operating-points-v2";
 		opp-shared;
 
@@ -112,7 +112,7 @@
 		};
 	};
 
-	gpu_opp_table: gpu-opp-table {
+	gpu_opp_table: opp-table-gpu {
 		compatible = "operating-points-v2";
 
 		opp-120000000 {
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-cpu-opp.dtsi
index 578c37490d901..e39db51eb4489 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-cpu-opp.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-cpu-opp.dtsi
@@ -4,7 +4,7 @@
  */
 
 / {
-	cpu0_opp_table: opp_table0 {
+	cpu0_opp_table: opp-table-cpu {
 		compatible = "operating-points-v2";
 		opp-shared;
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5-cpu-opp.dtsi
index b2657201957eb..1afad8b437d72 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-cpu-opp.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-cpu-opp.dtsi
@@ -2,7 +2,7 @@
 // Copyright (C) 2020 Chen-Yu Tsai <wens@csie.org>
 
 / {
-	cpu_opp_table: cpu-opp-table {
+	cpu_opp_table: opp-table-cpu {
 		compatible = "operating-points-v2";
 		opp-shared;
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
index 1a5eddc5a40f3..653452926d857 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-cpu-opp.dtsi
@@ -3,7 +3,7 @@
 // Copyright (C) 2020 Clément Péron <peron.clem@gmail.com>
 
 / {
-	cpu_opp_table: cpu-opp-table {
+	cpu_opp_table: opp-table-cpu {
 		compatible = "allwinner,sun50i-h6-operating-points";
 		nvmem-cells = <&cpu_speed_grade>;
 		opp-shared;
-- 
GitLab


From fa98ac472e88192ce93b4cf8e12d7e471ad310d9 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 1 Sep 2021 11:18:47 +0200
Subject: [PATCH 1539/4878] arm64: dts: allwinner: h5: Fix GPU thermal zone
 node name

[ Upstream commit 94a0f2b0e4e0953d8adf319c44244ef7a57de32c ]

The GPU thermal zone is named gpu_thermal. However, the underscore is
an invalid character for a node name and the thermal zone binding
explicitly requires that zones are called *-thermal. Let's fix it.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20210901091852.479202-48-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
index 10489e5086956..0ee8a5adf02b0 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
@@ -204,7 +204,7 @@
 			};
 		};
 
-		gpu_thermal {
+		gpu-thermal {
 			polling-delay-passive = <0>;
 			polling-delay = <0>;
 			thermal-sensors = <&ths 1>;
-- 
GitLab


From 2651d06e461f412fdcecf03c7bfb9efa32f8b94e Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 1 Sep 2021 11:18:49 +0200
Subject: [PATCH 1540/4878] arm64: dts: allwinner: a100: Fix thermal zone node
 name

[ Upstream commit 5c34c4e46e601554bfa370b23c8ae3c3c734e9f7 ]

The thermal zones one the A100 are called $device-thermal-zone.

However, the thermal zone binding explicitly requires that zones are
called *-thermal. Let's fix it.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20210901091852.479202-50-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
index cc321c04f1219..f6d7d7f7fdabe 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
@@ -343,19 +343,19 @@
 	};
 
 	thermal-zones {
-		cpu-thermal-zone {
+		cpu-thermal {
 			polling-delay-passive = <0>;
 			polling-delay = <0>;
 			thermal-sensors = <&ths 0>;
 		};
 
-		ddr-thermal-zone {
+		ddr-thermal {
 			polling-delay-passive = <0>;
 			polling-delay = <0>;
 			thermal-sensors = <&ths 2>;
 		};
 
-		gpu-thermal-zone {
+		gpu-thermal {
 			polling-delay-passive = <0>;
 			polling-delay = <0>;
 			thermal-sensors = <&ths 1>;
-- 
GitLab


From 5010df76ab1f8bde8c8187fba243b52e8e9e684d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Pouiller?= <jerome.pouiller@silabs.com>
Date: Mon, 13 Sep 2021 15:02:03 +0200
Subject: [PATCH 1541/4878] staging: wfx: ensure IRQ is ready before enabling
 it
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 5e57c668dc097c6c27c973504706edec53f79281 ]

Since commit 5561770f80b1 ("staging: wfx: repair external IRQ for
SDIO"), wfx_sdio_irq_subscribe() enforce the device to use IRQs.
However, there is currently a race in this code. An IRQ may happen
before the IRQ has been registered.

The problem has observed during debug session when the device crashes
before the IRQ set up:

    [ 1.546] wfx-sdio mmc0:0001:1: started firmware 3.12.2 "WF200_ASIC_WFM_(Jenkins)_FW3.12.2" (API: 3.7, keyset: C0, caps: 0x00000002)
    [ 2.559] wfx-sdio mmc0:0001:1: time out while polling control register
    [ 3.565] wfx-sdio mmc0:0001:1: chip is abnormally long to answer
    [ 6.563] wfx-sdio mmc0:0001:1: chip did not answer
    [ 6.568] wfx-sdio mmc0:0001:1: hardware request CONFIGURATION (0x09) on vif 2 returned error -110
    [ 6.577] wfx-sdio mmc0:0001:1: PDS bytes 0 to 12: chip didn't reply (corrupted file?)
    [ 6.585] Unable to handle kernel NULL pointer dereference at virtual address 00000000
    [ 6.592] pgd = c0004000
    [ 6.595] [00000000] *pgd=00000000
    [ 6.598] Internal error: Oops - BUG: 17 [#1] THUMB2
    [ 6.603] Modules linked in:
    [ 6.606] CPU: 0 PID: 23 Comm: kworker/u2:1 Not tainted 3.18.19 #78
    [ 6.612] Workqueue: kmmcd mmc_rescan
    [ 6.616] task: c176d100 ti: c0e50000 task.ti: c0e50000
    [ 6.621] PC is at wake_up_process+0xa/0x14
    [ 6.625] LR is at sdio_irq+0x61/0x250
    [ 6.629] pc : [<c001e8ae>] lr : [<c00ec5bd>] psr: 600001b3
    [ 6.629] sp : c0e51bd8 ip : c0e51cc8 fp : 00000001
    [ 6.640] r10: 00000003 r9 : 00000000 r8 : c0003c34
    [ 6.644] r7 : c0e51bd8 r6 : c0003c30 r5 : 00000001 r4 : c0e78c00
    [ 6.651] r3 : 00000000 r2 : 00000000 r1 : 00000003 r0 : 00000000
    [ 6.657] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA Thumb Segment kernel
    [ 6.664] Control: 50c53c7d Table: 11fd8059 DAC: 00000015
    [ 6.670] Process kworker/u2:1 (pid: 23, stack limit = 0xc0e501b0)
    [ 6.676] Stack: (0xc0e51bd8 to 0xc0e52000)
    [...]
    [ 6.949] [<c001e8ae>] (wake_up_process) from [<c00ec5bd>] (sdio_irq+0x61/0x250)
    [ 6.956] [<c00ec5bd>] (sdio_irq) from [<c0025099>] (handle_irq_event_percpu+0x17/0x92)
    [ 6.964] [<c0025099>] (handle_irq_event_percpu) from [<c002512f>] (handle_irq_event+0x1b/0x24)
    [ 6.973] [<c002512f>] (handle_irq_event) from [<c0026577>] (handle_level_irq+0x5d/0x76)
    [ 6.981] [<c0026577>] (handle_level_irq) from [<c0024cc3>] (generic_handle_irq+0x13/0x1c)
    [ 6.989] [<c0024cc3>] (generic_handle_irq) from [<c0024dd9>] (__handle_domain_irq+0x31/0x48)
    [ 6.997] [<c0024dd9>] (__handle_domain_irq) from [<c0008359>] (ov_handle_irq+0x31/0xe0)
    [ 7.005] [<c0008359>] (ov_handle_irq) from [<c000af5b>] (__irq_svc+0x3b/0x5c)
    [ 7.013] Exception stack(0xc0e51c68 to 0xc0e51cb0)
    [...]
    [ 7.038] [<c000af5b>] (__irq_svc) from [<c01775aa>] (wait_for_common+0x9e/0xc4)
    [ 7.045] [<c01775aa>] (wait_for_common) from [<c00e1dc3>] (mmc_wait_for_req+0x4b/0xdc)
    [ 7.053] [<c00e1dc3>] (mmc_wait_for_req) from [<c00e1e83>] (mmc_wait_for_cmd+0x2f/0x34)
    [ 7.061] [<c00e1e83>] (mmc_wait_for_cmd) from [<c00e7b2b>] (mmc_io_rw_direct_host+0x71/0xac)
    [ 7.070] [<c00e7b2b>] (mmc_io_rw_direct_host) from [<c00e8f79>] (sdio_claim_irq+0x6b/0x116)
    [ 7.078] [<c00e8f79>] (sdio_claim_irq) from [<c00d8415>] (wfx_sdio_irq_subscribe+0x19/0x94)
    [ 7.086] [<c00d8415>] (wfx_sdio_irq_subscribe) from [<c00d5229>] (wfx_probe+0x189/0x2ac)
    [ 7.095] [<c00d5229>] (wfx_probe) from [<c00d83bf>] (wfx_sdio_probe+0x8f/0xcc)
    [ 7.102] [<c00d83bf>] (wfx_sdio_probe) from [<c00e7fbb>] (sdio_bus_probe+0x5f/0xa8)
    [ 7.109] [<c00e7fbb>] (sdio_bus_probe) from [<c00be229>] (driver_probe_device+0x59/0x134)
    [ 7.118] [<c00be229>] (driver_probe_device) from [<c00bd4d7>] (bus_for_each_drv+0x3f/0x4a)
    [ 7.126] [<c00bd4d7>] (bus_for_each_drv) from [<c00be1a5>] (device_attach+0x3b/0x52)
    [ 7.134] [<c00be1a5>] (device_attach) from [<c00bdc2b>] (bus_probe_device+0x17/0x4c)
    [ 7.141] [<c00bdc2b>] (bus_probe_device) from [<c00bcd69>] (device_add+0x2c5/0x334)
    [ 7.149] [<c00bcd69>] (device_add) from [<c00e80bf>] (sdio_add_func+0x23/0x44)
    [ 7.156] [<c00e80bf>] (sdio_add_func) from [<c00e79eb>] (mmc_attach_sdio+0x187/0x1ec)
    [ 7.164] [<c00e79eb>] (mmc_attach_sdio) from [<c00e31bd>] (mmc_rescan+0x18d/0x1fc)
    [ 7.172] [<c00e31bd>] (mmc_rescan) from [<c001a14f>] (process_one_work+0xd7/0x170)
    [ 7.179] [<c001a14f>] (process_one_work) from [<c001a59b>] (worker_thread+0x103/0x1bc)
    [ 7.187] [<c001a59b>] (worker_thread) from [<c001c731>] (kthread+0x7d/0x90)
    [ 7.194] [<c001c731>] (kthread) from [<c0008ce1>] (ret_from_fork+0x11/0x30)
    [ 7.201] Code: 2103 b580 2200 af00 (681b) 46bd
    [ 7.206] ---[ end trace 3ab50aced42eedb4 ]---

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20210913130203.1903622-33-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/bus_sdio.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/wfx/bus_sdio.c b/drivers/staging/wfx/bus_sdio.c
index e06d7e1ebe9c3..61b8cc05f2935 100644
--- a/drivers/staging/wfx/bus_sdio.c
+++ b/drivers/staging/wfx/bus_sdio.c
@@ -120,19 +120,22 @@ static int wfx_sdio_irq_subscribe(void *priv)
 		return ret;
 	}
 
+	flags = irq_get_trigger_type(bus->of_irq);
+	if (!flags)
+		flags = IRQF_TRIGGER_HIGH;
+	flags |= IRQF_ONESHOT;
+	ret = devm_request_threaded_irq(&bus->func->dev, bus->of_irq, NULL,
+					wfx_sdio_irq_handler_ext, flags,
+					"wfx", bus);
+	if (ret)
+		return ret;
 	sdio_claim_host(bus->func);
 	cccr = sdio_f0_readb(bus->func, SDIO_CCCR_IENx, NULL);
 	cccr |= BIT(0);
 	cccr |= BIT(bus->func->num);
 	sdio_f0_writeb(bus->func, cccr, SDIO_CCCR_IENx, NULL);
 	sdio_release_host(bus->func);
-	flags = irq_get_trigger_type(bus->of_irq);
-	if (!flags)
-		flags = IRQF_TRIGGER_HIGH;
-	flags |= IRQF_ONESHOT;
-	return devm_request_threaded_irq(&bus->func->dev, bus->of_irq, NULL,
-					 wfx_sdio_irq_handler_ext, flags,
-					 "wfx", bus);
+	return 0;
 }
 
 static int wfx_sdio_irq_unsubscribe(void *priv)
-- 
GitLab


From db90c507832a7afc244336ace98250e7f000b2db Mon Sep 17 00:00:00 2001
From: Matthew Hagan <mnhagan88@gmail.com>
Date: Sun, 29 Aug 2021 22:37:48 +0000
Subject: [PATCH 1542/4878] ARM: dts: NSP: Fix mpcore, mmc node names

[ Upstream commit 15a563d008ef9d04df525f0c476cd7d7127bb883 ]

Running dtbs_check yielded the issues with bcm-nsp.dtsi.

Firstly this patch fixes the following message by appending "-bus" to
the mpcore node name:
mpcore@19000000: $nodename:0: 'mpcore@19000000' does not match '^([a-z][a-z0-9\\-]+-bus|bus|soc|axi|ahb|apb)(@[0-9a-f]+)?$'

Secondly mmc node name. The label name can remain as is.
sdhci@21000: $nodename:0: 'sdhci@21000' does not match '^mmc(@.*)?$'

Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm-nsp.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/bcm-nsp.dtsi b/arch/arm/boot/dts/bcm-nsp.dtsi
index 605b6d2f4a569..1dae02bb82c2d 100644
--- a/arch/arm/boot/dts/bcm-nsp.dtsi
+++ b/arch/arm/boot/dts/bcm-nsp.dtsi
@@ -77,7 +77,7 @@
 		interrupt-affinity = <&cpu0>, <&cpu1>;
 	};
 
-	mpcore@19000000 {
+	mpcore-bus@19000000 {
 		compatible = "simple-bus";
 		ranges = <0x00000000 0x19000000 0x00023000>;
 		#address-cells = <1>;
@@ -219,7 +219,7 @@
 			status = "disabled";
 		};
 
-		sdio: sdhci@21000 {
+		sdio: mmc@21000 {
 			compatible = "brcm,sdhci-iproc-cygnus";
 			reg = <0x21000 0x100>;
 			interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>;
-- 
GitLab


From c097bd5a59162156d9c2077a2f58732ffbaa9fca Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Fri, 10 Sep 2021 16:31:46 -0700
Subject: [PATCH 1543/4878] scsi: lpfc: Fix list_add() corruption in
 lpfc_drain_txq()

[ Upstream commit 99154581b05c8fb22607afb7c3d66c1bace6aa5d ]

When parsing the txq list in lpfc_drain_txq(), the driver attempts to pass
the requests to the adapter. If such an attempt fails, a local "fail_msg"
string is set and a log message output.  The job is then added to a
completions list for cancellation.

Processing of any further jobs from the txq list continues, but since
"fail_msg" remains set, jobs are added to the completions list regardless
of whether a wqe was passed to the adapter.  If successfully added to
txcmplq, jobs are added to both lists resulting in list corruption.

Fix by clearing the fail_msg string after adding a job to the completions
list. This stops the subsequent jobs from being added to the completions
list unless they had an appropriate failure.

Link: https://lore.kernel.org/r/20210910233159.115896-2-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc_sli.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 990b700de6892..06a23718a7c7f 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -20080,6 +20080,7 @@ lpfc_drain_txq(struct lpfc_hba *phba)
 					fail_msg,
 					piocbq->iotag, piocbq->sli4_xritag);
 			list_add_tail(&piocbq->list, &completions);
+			fail_msg = NULL;
 		}
 		spin_unlock_irqrestore(&pring->ring_lock, iflags);
 	}
-- 
GitLab


From 109a63bb07f08b5fc0183f4837782288b99c6305 Mon Sep 17 00:00:00 2001
From: Matthias Brugger <mbrugger@suse.com>
Date: Thu, 15 Jul 2021 18:41:01 +0200
Subject: [PATCH 1544/4878] arm64: dts: rockchip: Disable CDN DP on Pinebook
 Pro

[ Upstream commit 2513fa5c25d42f55ca5f0f0ab247af7c9fbfa3b1 ]

The CDN DP needs a PHY and a extcon to work correctly. But no extcon is
provided by the device-tree, which leads to an error:
cdn-dp fec00000.dp: [drm:cdn_dp_probe [rockchipdrm]] *ERROR* missing extcon or phy
cdn-dp: probe of fec00000.dp failed with error -22

Disable the CDN DP to make graphic work on the Pinebook Pro.

Reported-by: Guillaume Gardet <guillaume.gardet@arm.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Link: https://lore.kernel.org/r/20210715164101.11486-1-matthias.bgg@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
index 219b7507a10fb..4297c1db5a413 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
@@ -379,10 +379,6 @@
 	};
 };
 
-&cdn_dp {
-	status = "okay";
-};
-
 &cpu_b0 {
 	cpu-supply = <&vdd_cpu_b>;
 };
-- 
GitLab


From 4e5bc9fb23a7f12ca9fcee73d4ffb23267fa98ee Mon Sep 17 00:00:00 2001
From: Michael Walle <michael@walle.cc>
Date: Mon, 30 Aug 2021 18:51:13 +0200
Subject: [PATCH 1545/4878] arm64: dts: hisilicon: fix arm,sp805 compatible
 string

[ Upstream commit 894d4f1f77d0e88f1f81af2e1e37333c1c41b631 ]

According to Documentation/devicetree/bindings/watchdog/arm,sp805.yaml
the compatible is:
  compatible = "arm,sp805", "arm,primecell";

The current compatible string doesn't exist at all. Fix it.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 4 ++--
 arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 994140fbc916e..fe4dce23ef7e1 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -1086,7 +1086,7 @@
 		};
 
 		watchdog0: watchdog@e8a06000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xe8a06000 0x0 0x1000>;
 			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&crg_ctrl HI3660_OSC32K>,
@@ -1095,7 +1095,7 @@
 		};
 
 		watchdog1: watchdog@e8a07000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xe8a07000 0x0 0x1000>;
 			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&crg_ctrl HI3660_OSC32K>,
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 014735a9bc731..fbce014bdc270 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -840,7 +840,7 @@
 		};
 
 		watchdog0: watchdog@f8005000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xf8005000 0x0 0x1000>;
 			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&ao_ctrl HI6220_WDT0_PCLK>,
-- 
GitLab


From dcd6eefceeb0e464237d27340053c6f2f15217b5 Mon Sep 17 00:00:00 2001
From: Selvin Xavier <selvin.xavier@broadcom.com>
Date: Wed, 15 Sep 2021 05:32:42 -0700
Subject: [PATCH 1546/4878] RDMA/bnxt_re: Check if the vlan is valid before
 reporting

[ Upstream commit 6bda39149d4b8920fdb8744090653aca3daa792d ]

When VF is configured with default vlan, HW strips the vlan from the
packet and driver receives it in Rx completion. VLAN needs to be reported
for UD work completion only if the vlan is configured on the host. Add a
check for valid vlan in the UD receive path.

Link: https://lore.kernel.org/r/1631709163-2287-12-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 441952a5eca4a..10d77f50f818b 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -3368,8 +3368,11 @@ static void bnxt_re_process_res_ud_wc(struct bnxt_re_qp *qp,
 				      struct ib_wc *wc,
 				      struct bnxt_qplib_cqe *cqe)
 {
+	struct bnxt_re_dev *rdev;
+	u16 vlan_id = 0;
 	u8 nw_type;
 
+	rdev = qp->rdev;
 	wc->opcode = IB_WC_RECV;
 	wc->status = __rc_to_ib_wc_status(cqe->status);
 
@@ -3381,9 +3384,12 @@ static void bnxt_re_process_res_ud_wc(struct bnxt_re_qp *qp,
 		memcpy(wc->smac, cqe->smac, ETH_ALEN);
 		wc->wc_flags |= IB_WC_WITH_SMAC;
 		if (cqe->flags & CQ_RES_UD_FLAGS_META_FORMAT_VLAN) {
-			wc->vlan_id = (cqe->cfa_meta & 0xFFF);
-			if (wc->vlan_id < 0x1000)
-				wc->wc_flags |= IB_WC_WITH_VLAN;
+			vlan_id = (cqe->cfa_meta & 0xFFF);
+		}
+		/* Mark only if vlan_id is non zero */
+		if (vlan_id && bnxt_re_check_if_vlan_valid(rdev, vlan_id)) {
+			wc->vlan_id = vlan_id;
+			wc->wc_flags |= IB_WC_WITH_VLAN;
 		}
 		nw_type = (cqe->flags & CQ_RES_UD_FLAGS_ROCE_IP_VER_MASK) >>
 			   CQ_RES_UD_FLAGS_ROCE_IP_VER_SFT;
-- 
GitLab


From 5eca1c8412f40dd798c28549cd4c032217ad2faf Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 21 Sep 2021 12:42:25 +0300
Subject: [PATCH 1547/4878] bus: ti-sysc: Add quirk handling for reinit on
 context lost

[ Upstream commit 9d881361206ebcf6285c2ec2ef275aff80875347 ]

Some interconnect target modules such as otg and gpmc on am335x need a
re-init after resume. As we also have PM runtime cases where the context
may be lost, let's handle these all with cpu_pm.

For the am335x resume path, we already have cpu_pm_resume() call
cpu_pm_cluster_exit().

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bus/ti-sysc.c                 | 108 ++++++++++++++++++++++++--
 include/linux/platform_data/ti-sysc.h |   1 +
 2 files changed, 103 insertions(+), 6 deletions(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 2ff437e5c7051..1622b0f268230 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -6,6 +6,7 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
+#include <linux/cpu_pm.h>
 #include <linux/delay.h>
 #include <linux/list.h>
 #include <linux/module.h>
@@ -52,11 +53,18 @@ struct sysc_address {
 	struct list_head node;
 };
 
+struct sysc_module {
+	struct sysc *ddata;
+	struct list_head node;
+};
+
 struct sysc_soc_info {
 	unsigned long general_purpose:1;
 	enum sysc_soc soc;
-	struct mutex list_lock;			/* disabled modules list lock */
+	struct mutex list_lock;	/* disabled and restored modules list lock */
 	struct list_head disabled_modules;
+	struct list_head restored_modules;
+	struct notifier_block nb;
 };
 
 enum sysc_clocks {
@@ -2429,6 +2437,79 @@ static struct dev_pm_domain sysc_child_pm_domain = {
 	}
 };
 
+/* Caller needs to take list_lock if ever used outside of cpu_pm */
+static void sysc_reinit_modules(struct sysc_soc_info *soc)
+{
+	struct sysc_module *module;
+	struct list_head *pos;
+	struct sysc *ddata;
+	int error = 0;
+
+	list_for_each(pos, &sysc_soc->restored_modules) {
+		module = list_entry(pos, struct sysc_module, node);
+		ddata = module->ddata;
+		error = sysc_reinit_module(ddata, ddata->enabled);
+	}
+}
+
+/**
+ * sysc_context_notifier - optionally reset and restore module after idle
+ * @nb: notifier block
+ * @cmd: unused
+ * @v: unused
+ *
+ * Some interconnect target modules need to be restored, or reset and restored
+ * on CPU_PM CPU_PM_CLUSTER_EXIT notifier. This is needed at least for am335x
+ * OTG and GPMC target modules even if the modules are unused.
+ */
+static int sysc_context_notifier(struct notifier_block *nb, unsigned long cmd,
+				 void *v)
+{
+	struct sysc_soc_info *soc;
+
+	soc = container_of(nb, struct sysc_soc_info, nb);
+
+	switch (cmd) {
+	case CPU_CLUSTER_PM_ENTER:
+		break;
+	case CPU_CLUSTER_PM_ENTER_FAILED:	/* No need to restore context */
+		break;
+	case CPU_CLUSTER_PM_EXIT:
+		sysc_reinit_modules(soc);
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
+/**
+ * sysc_add_restored - optionally add reset and restore quirk hanlling
+ * @ddata: device data
+ */
+static void sysc_add_restored(struct sysc *ddata)
+{
+	struct sysc_module *restored_module;
+
+	restored_module = kzalloc(sizeof(*restored_module), GFP_KERNEL);
+	if (!restored_module)
+		return;
+
+	restored_module->ddata = ddata;
+
+	mutex_lock(&sysc_soc->list_lock);
+
+	list_add(&restored_module->node, &sysc_soc->restored_modules);
+
+	if (sysc_soc->nb.notifier_call)
+		goto out_unlock;
+
+	sysc_soc->nb.notifier_call = sysc_context_notifier;
+	cpu_pm_register_notifier(&sysc_soc->nb);
+
+out_unlock:
+	mutex_unlock(&sysc_soc->list_lock);
+}
+
 /**
  * sysc_legacy_idle_quirk - handle children in omap_device compatible way
  * @ddata: device driver data
@@ -2928,12 +3009,14 @@ static int sysc_add_disabled(unsigned long base)
 }
 
 /*
- * One time init to detect the booted SoC and disable unavailable features.
+ * One time init to detect the booted SoC, disable unavailable features
+ * and initialize list for optional cpu_pm notifier.
+ *
  * Note that we initialize static data shared across all ti-sysc instances
  * so ddata is only used for SoC type. This can be called from module_init
  * once we no longer need to rely on platform data.
  */
-static int sysc_init_soc(struct sysc *ddata)
+static int sysc_init_static_data(struct sysc *ddata)
 {
 	const struct soc_device_attribute *match;
 	struct ti_sysc_platform_data *pdata;
@@ -2948,6 +3031,7 @@ static int sysc_init_soc(struct sysc *ddata)
 
 	mutex_init(&sysc_soc->list_lock);
 	INIT_LIST_HEAD(&sysc_soc->disabled_modules);
+	INIT_LIST_HEAD(&sysc_soc->restored_modules);
 	sysc_soc->general_purpose = true;
 
 	pdata = dev_get_platdata(ddata->dev);
@@ -2994,15 +3078,24 @@ static int sysc_init_soc(struct sysc *ddata)
 	return 0;
 }
 
-static void sysc_cleanup_soc(void)
+static void sysc_cleanup_static_data(void)
 {
+	struct sysc_module *restored_module;
 	struct sysc_address *disabled_module;
 	struct list_head *pos, *tmp;
 
 	if (!sysc_soc)
 		return;
 
+	if (sysc_soc->nb.notifier_call)
+		cpu_pm_unregister_notifier(&sysc_soc->nb);
+
 	mutex_lock(&sysc_soc->list_lock);
+	list_for_each_safe(pos, tmp, &sysc_soc->restored_modules) {
+		restored_module = list_entry(pos, struct sysc_module, node);
+		list_del(pos);
+		kfree(restored_module);
+	}
 	list_for_each_safe(pos, tmp, &sysc_soc->disabled_modules) {
 		disabled_module = list_entry(pos, struct sysc_address, node);
 		list_del(pos);
@@ -3067,7 +3160,7 @@ static int sysc_probe(struct platform_device *pdev)
 	ddata->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ddata);
 
-	error = sysc_init_soc(ddata);
+	error = sysc_init_static_data(ddata);
 	if (error)
 		return error;
 
@@ -3166,6 +3259,9 @@ static int sysc_probe(struct platform_device *pdev)
 		pm_runtime_put(&pdev->dev);
 	}
 
+	if (ddata->cfg.quirks & SYSC_QUIRK_REINIT_ON_CTX_LOST)
+		sysc_add_restored(ddata);
+
 	return 0;
 
 err:
@@ -3248,7 +3344,7 @@ static void __exit sysc_exit(void)
 {
 	bus_unregister_notifier(&platform_bus_type, &sysc_nb);
 	platform_driver_unregister(&sysc_driver);
-	sysc_cleanup_soc();
+	sysc_cleanup_static_data();
 }
 module_exit(sysc_exit);
 
diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h
index 9837fb011f2fb..989aa30c598dc 100644
--- a/include/linux/platform_data/ti-sysc.h
+++ b/include/linux/platform_data/ti-sysc.h
@@ -50,6 +50,7 @@ struct sysc_regbits {
 	s8 emufree_shift;
 };
 
+#define SYSC_QUIRK_REINIT_ON_CTX_LOST	BIT(28)
 #define SYSC_QUIRK_REINIT_ON_RESUME	BIT(27)
 #define SYSC_QUIRK_GPMC_DEBUG		BIT(26)
 #define SYSC_MODULE_QUIRK_ENA_RESETDONE	BIT(25)
-- 
GitLab


From 2492de6f5edbfb3f51cb13c6676705ac923b7041 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 21 Sep 2021 12:42:25 +0300
Subject: [PATCH 1548/4878] bus: ti-sysc: Use context lost quirk for otg

[ Upstream commit 9067839ff45a528bcb015cc2f24f656126b91e3f ]

Let's use SYSC_QUIRK_REINIT_ON_CTX_LOST quirk for am335x otg instead of
SYSC_QUIRK_REINIT_ON_RESUME quirk as we can now handle the context loss
in a more generic way.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bus/ti-sysc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 1622b0f268230..43603dc9da430 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1563,7 +1563,7 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 		   0xffffffff, SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_MSTANDBY),
 	SYSC_QUIRK("usb_otg_hs", 0, 0, 0x10, -ENODEV, 0x4ea2080d, 0xffffffff,
 		   SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_MSTANDBY |
-		   SYSC_QUIRK_REINIT_ON_RESUME),
+		   SYSC_QUIRK_REINIT_ON_CTX_LOST),
 	SYSC_QUIRK("wdt", 0, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0,
 		   SYSC_MODULE_QUIRK_WDT),
 	/* PRUSS on am3, am4 and am5 */
-- 
GitLab


From 679eee466d0f9ffa60a2b0c6ec19be5128927f04 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Wed, 15 Sep 2021 11:49:25 +0800
Subject: [PATCH 1549/4878] usb: musb: tusb6010: check return value after
 calling platform_get_resource()

[ Upstream commit 14651496a3de6807a17c310f63c894ea0c5d858e ]

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210915034925.2399823-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/musb/tusb6010.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 0c2afed4131bc..038307f661985 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1103,6 +1103,11 @@ static int tusb_musb_init(struct musb *musb)
 
 	/* dma address for async dma */
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem) {
+		pr_debug("no async dma resource?\n");
+		ret = -ENODEV;
+		goto done;
+	}
 	musb->async = mem->start;
 
 	/* dma address for sync dma */
-- 
GitLab


From eff8b7628410cb2eb562ca0d5d1f12e27063733e Mon Sep 17 00:00:00 2001
From: Sven Peter <sven@svenpeter.dev>
Date: Tue, 14 Sep 2021 16:02:35 +0200
Subject: [PATCH 1550/4878] usb: typec: tipd: Remove WARN_ON in
 tps6598x_block_read

[ Upstream commit b7a0a63f3fed57d413bb857de164ea9c3984bc4e ]

Calling tps6598x_block_read with a higher than allowed len can be
handled by just returning an error. There's no need to crash systems
with panic-on-warn enabled.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210914140235.65955-3-sven@svenpeter.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/typec/tps6598x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c
index 30bfc314b743c..6cb5c8e2c8535 100644
--- a/drivers/usb/typec/tps6598x.c
+++ b/drivers/usb/typec/tps6598x.c
@@ -109,7 +109,7 @@ tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len)
 	u8 data[TPS_MAX_LEN + 1];
 	int ret;
 
-	if (WARN_ON(len + 1 > sizeof(data)))
+	if (len + 1 > sizeof(data))
 		return -EINVAL;
 
 	if (!tps->i2c_protocol)
-- 
GitLab


From 3544c338794b2e670e8e47ab1a3923f6fb3919b9 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 4 Jun 2021 00:00:04 +0200
Subject: [PATCH 1551/4878] ARM: dts: ux500: Skomer regulator fixes

[ Upstream commit 7aee0288beab72cdfa35af51f62e94373fca595d ]

AUX2 has slightly wrong voltage and AUX5 doesn't need to be
always on.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/ste-ux500-samsung-skomer.dts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
index 27722c42b61c4..08bddbf0336da 100644
--- a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
+++ b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
@@ -262,10 +262,10 @@
 					};
 
 					ab8500_ldo_aux2 {
-						/* Supplies the Cypress TMA140 touchscreen only with 3.3V */
+						/* Supplies the Cypress TMA140 touchscreen only with 3.0V */
 						regulator-name = "AUX2";
-						regulator-min-microvolt = <3300000>;
-						regulator-max-microvolt = <3300000>;
+						regulator-min-microvolt = <3000000>;
+						regulator-max-microvolt = <3000000>;
 					};
 
 					ab8500_ldo_aux3 {
@@ -284,9 +284,9 @@
 
 					ab8500_ldo_aux5 {
 						regulator-name = "AUX5";
+						/* Intended for 1V8 for touchscreen but actually left unused */
 						regulator-min-microvolt = <1050000>;
 						regulator-max-microvolt = <2790000>;
-						regulator-always-on;
 					};
 
 					ab8500_ldo_aux6 {
-- 
GitLab


From 3a53d9ad9bc3408ad7f0424d60d25381f9fa6c81 Mon Sep 17 00:00:00 2001
From: Fabio Aiuto <fabioaiuto83@gmail.com>
Date: Mon, 20 Sep 2021 16:55:00 +0200
Subject: [PATCH 1552/4878] staging: rtl8723bs: remove possible deadlock when
 disconnect (v2)

[ Upstream commit 54659ca026e586bbb33a7e60daa6443a3ac6b5df ]

when turning off a connection, lockdep complains with the
following warning (a modprobe has been done but the same
happens with a disconnection from NetworkManager,
it's enough to trigger a cfg80211_disconnect call):

[  682.855867] ======================================================
[  682.855877] WARNING: possible circular locking dependency detected
[  682.855887] 5.14.0-rc6+ #16 Tainted: G         C OE
[  682.855898] ------------------------------------------------------
[  682.855906] modprobe/1770 is trying to acquire lock:
[  682.855916] ffffb6d000332b00 (&pxmitpriv->lock){+.-.}-{2:2},
		at: rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.856073]
               but task is already holding lock:
[  682.856081] ffffb6d0003336a8 (&pstapriv->sta_hash_lock){+.-.}-{2:2},
		at: rtw_free_assoc_resources+0x48/0x110 [r8723bs]
[  682.856207]
               which lock already depends on the new lock.

[  682.856215]
               the existing dependency chain (in reverse order) is:
[  682.856223]
               -> #1 (&pstapriv->sta_hash_lock){+.-.}-{2:2}:
[  682.856247]        _raw_spin_lock_bh+0x34/0x40
[  682.856265]        rtw_get_stainfo+0x9a/0x110 [r8723bs]
[  682.856389]        rtw_xmit_classifier+0x27/0x130 [r8723bs]
[  682.856515]        rtw_xmitframe_enqueue+0xa/0x20 [r8723bs]
[  682.856642]        rtl8723bs_hal_xmit+0x3b/0xb0 [r8723bs]
[  682.856752]        rtw_xmit+0x4ef/0x890 [r8723bs]
[  682.856879]        _rtw_xmit_entry+0xba/0x350 [r8723bs]
[  682.856981]        dev_hard_start_xmit+0xee/0x320
[  682.856999]        sch_direct_xmit+0x8c/0x330
[  682.857014]        __dev_queue_xmit+0xba5/0xf00
[  682.857030]        packet_sendmsg+0x981/0x1b80
[  682.857047]        sock_sendmsg+0x5b/0x60
[  682.857060]        __sys_sendto+0xf1/0x160
[  682.857073]        __x64_sys_sendto+0x24/0x30
[  682.857087]        do_syscall_64+0x3a/0x80
[  682.857102]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  682.857117]
               -> #0 (&pxmitpriv->lock){+.-.}-{2:2}:
[  682.857142]        __lock_acquire+0xfd9/0x1b50
[  682.857158]        lock_acquire+0xb4/0x2c0
[  682.857172]        _raw_spin_lock_bh+0x34/0x40
[  682.857185]        rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.857308]        rtw_free_assoc_resources+0x53/0x110 [r8723bs]
[  682.857415]        cfg80211_rtw_disconnect+0x4b/0x70 [r8723bs]
[  682.857522]        cfg80211_disconnect+0x12e/0x2f0 [cfg80211]
[  682.857759]        cfg80211_leave+0x2b/0x40 [cfg80211]
[  682.857961]        cfg80211_netdev_notifier_call+0xa9/0x560 [cfg80211]
[  682.858163]        raw_notifier_call_chain+0x41/0x50
[  682.858180]        __dev_close_many+0x62/0x100
[  682.858195]        dev_close_many+0x7d/0x120
[  682.858209]        unregister_netdevice_many+0x416/0x680
[  682.858225]        unregister_netdevice_queue+0xab/0xf0
[  682.858240]        unregister_netdev+0x18/0x20
[  682.858255]        rtw_unregister_netdevs+0x28/0x40 [r8723bs]
[  682.858360]        rtw_dev_remove+0x24/0xd0 [r8723bs]
[  682.858463]        sdio_bus_remove+0x31/0xd0 [mmc_core]
[  682.858532]        device_release_driver_internal+0xf7/0x1d0
[  682.858550]        driver_detach+0x47/0x90
[  682.858564]        bus_remove_driver+0x77/0xd0
[  682.858579]        rtw_drv_halt+0xc/0x678 [r8723bs]
[  682.858685]        __x64_sys_delete_module+0x13f/0x250
[  682.858699]        do_syscall_64+0x3a/0x80
[  682.858715]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  682.858729]
               other info that might help us debug this:

[  682.858737]  Possible unsafe locking scenario:

[  682.858744]        CPU0                    CPU1
[  682.858751]        ----                    ----
[  682.858758]   lock(&pstapriv->sta_hash_lock);
[  682.858772]                                lock(&pxmitpriv->lock);
[  682.858786]                                lock(&pstapriv->sta_hash_lock);
[  682.858799]   lock(&pxmitpriv->lock);
[  682.858812]
                *** DEADLOCK ***

[  682.858820] 5 locks held by modprobe/1770:
[  682.858831]  #0: ffff8d870697d980 (&dev->mutex){....}-{3:3},
		at: device_release_driver_internal+0x1a/0x1d0
[  682.858869]  #1: ffffffffbdbbf1c8 (rtnl_mutex){+.+.}-{3:3},
		at: unregister_netdev+0xe/0x20
[  682.858906]  #2: ffff8d87054ee5e8 (&rdev->wiphy.mtx){+.+.}-{3:3},
		at: cfg80211_netdev_notifier_call+0x9e/0x560 [cfg80211]
[  682.859131]  #3: ffff8d870f2bc8f0 (&wdev->mtx){+.+.}-{3:3},
		at: cfg80211_leave+0x20/0x40 [cfg80211]
[  682.859354]  #4: ffffb6d0003336a8 (&pstapriv->sta_hash_lock){+.-.}-{2:2},
		at: rtw_free_assoc_resources+0x48/0x110 [r8723bs]
[  682.859482]
               stack backtrace:
[  682.859491] CPU: 1 PID: 1770 Comm: modprobe Tainted: G
		C OE     5.14.0-rc6+ #16
[  682.859507] Hardware name: LENOVO 80NR/Madrid, BIOS DACN25WW 08/20/2015
[  682.859517] Call Trace:
[  682.859531]  dump_stack_lvl+0x56/0x6f
[  682.859551]  check_noncircular+0xdb/0xf0
[  682.859579]  __lock_acquire+0xfd9/0x1b50
[  682.859606]  lock_acquire+0xb4/0x2c0
[  682.859623]  ? rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.859752]  ? mark_held_locks+0x48/0x70
[  682.859769]  ? rtw_free_stainfo+0x4a/0x4a0 [r8723bs]
[  682.859898]  _raw_spin_lock_bh+0x34/0x40
[  682.859914]  ? rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.860039]  rtw_free_stainfo+0x52/0x4a0 [r8723bs]
[  682.860171]  rtw_free_assoc_resources+0x53/0x110 [r8723bs]
[  682.860286]  cfg80211_rtw_disconnect+0x4b/0x70 [r8723bs]
[  682.860397]  cfg80211_disconnect+0x12e/0x2f0 [cfg80211]
[  682.860629]  cfg80211_leave+0x2b/0x40 [cfg80211]
[  682.860836]  cfg80211_netdev_notifier_call+0xa9/0x560 [cfg80211]
[  682.861048]  ? __lock_acquire+0x4dc/0x1b50
[  682.861070]  ? lock_is_held_type+0xa8/0x110
[  682.861089]  ? lock_is_held_type+0xa8/0x110
[  682.861104]  ? find_held_lock+0x2d/0x90
[  682.861120]  ? packet_notifier+0x173/0x300
[  682.861141]  ? lock_release+0xb3/0x250
[  682.861160]  ? packet_notifier+0x192/0x300
[  682.861184]  raw_notifier_call_chain+0x41/0x50
[  682.861205]  __dev_close_many+0x62/0x100
[  682.861224]  dev_close_many+0x7d/0x120
[  682.861245]  unregister_netdevice_many+0x416/0x680
[  682.861264]  ? find_held_lock+0x2d/0x90
[  682.861284]  unregister_netdevice_queue+0xab/0xf0
[  682.861306]  unregister_netdev+0x18/0x20
[  682.861325]  rtw_unregister_netdevs+0x28/0x40 [r8723bs]
[  682.861434]  rtw_dev_remove+0x24/0xd0 [r8723bs]
[  682.861542]  sdio_bus_remove+0x31/0xd0 [mmc_core]
[  682.861615]  device_release_driver_internal+0xf7/0x1d0
[  682.861637]  driver_detach+0x47/0x90
[  682.861656]  bus_remove_driver+0x77/0xd0
[  682.861674]  rtw_drv_halt+0xc/0x678 [r8723bs]
[  682.861782]  __x64_sys_delete_module+0x13f/0x250
[  682.861801]  ? lockdep_hardirqs_on_prepare+0xf3/0x170
[  682.861817]  ? syscall_enter_from_user_mode+0x20/0x70
[  682.861836]  do_syscall_64+0x3a/0x80
[  682.861855]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  682.861873] RIP: 0033:0x7f6dbe85400b
[  682.861890] Code: 73 01 c3 48 8b 0d 6d 1e 0c 00 f7 d8 64 89
01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa
b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d
1e 0c 00 f7 d8 64 89 01 48
[  682.861906] RSP: 002b:00007ffe7a82f538 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[  682.861923] RAX: ffffffffffffffda RBX: 000055a64693bd20 RCX: 00007f6dbe85400b
[  682.861935] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055a64693bd88
[  682.861946] RBP: 000055a64693bd20 R08: 0000000000000000 R09: 0000000000000000
[  682.861957] R10: 00007f6dbe8c7ac0 R11: 0000000000000206 R12: 000055a64693bd88
[  682.861967] R13: 0000000000000000 R14: 000055a64693bd88 R15: 00007ffe7a831848

This happens because when we enqueue a frame for
transmission we do it under xmit_priv lock, then calling
rtw_get_stainfo (needed for enqueuing) takes sta_hash_lock
and this leads to the following lock dependency:

xmit_priv->lock -> sta_hash_lock

Turning off a connection will bring to call
rtw_free_assoc_resources which will set up
the inverse dependency:

sta_hash_lock -> xmit_priv_lock

This could lead to a deadlock as lockdep complains.

Fix it by removing the xmit_priv->lock around
rtw_xmitframe_enqueue call inside rtl8723bs_hal_xmit
and put it in a smaller critical section inside
rtw_xmit_classifier, the only place where
xmit_priv data are actually accessed.

Replace spin_{lock,unlock}_bh(pxmitpriv->lock)
in other tx paths leading to rtw_xmitframe_enqueue
call with spin_{lock,unlock}_bh(psta->sleep_q.lock)
- it's not clear why accessing a sleep_q was protected
by a spinlock on xmitpriv->lock.

This way is avoided the same faulty lock nesting
order.

Extra changes in v2 by Hans de Goede:
-Lift the taking of the struct __queue.lock spinlock out of
 rtw_free_xmitframe_queue() into the callers this allows also
 protecting a bunch of related state in rtw_free_stainfo():
-Protect psta->sleepq_len on rtw_free_xmitframe_queue(&psta->sleep_q);
-Protect struct tx_servq.tx_pending and tx_servq.qcnt when
 calling rtw_free_xmitframe_queue(&tx_servq.sta_pending)
-This also allows moving the spin_lock_bh(&pxmitpriv->lock); to below
 the sleep_q free-ing code, avoiding another ABBA locking issue

CC: Larry Finger <Larry.Finger@lwfinger.net>
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Tested-on: Lenovo Ideapad MiiX 300-10IBY
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210920145502.155454-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/rtl8723bs/core/rtw_mlme_ext.c |  7 ++----
 drivers/staging/rtl8723bs/core/rtw_recv.c     | 10 +++------
 drivers/staging/rtl8723bs/core/rtw_sta_mgt.c  | 22 ++++++++++---------
 drivers/staging/rtl8723bs/core/rtw_xmit.c     | 16 ++++++--------
 .../staging/rtl8723bs/hal/rtl8723bs_xmit.c    |  2 --
 5 files changed, 24 insertions(+), 33 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index b912ad2f4b720..4df6d04315e39 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -6679,7 +6679,6 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 	struct sta_info *psta_bmc;
 	struct list_head	*xmitframe_plist, *xmitframe_phead;
 	struct xmit_frame *pxmitframe = NULL;
-	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct sta_priv  *pstapriv = &padapter->stapriv;
 
 	/* for BC/MC Frames */
@@ -6690,8 +6689,7 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 	if ((pstapriv->tim_bitmap&BIT(0)) && (psta_bmc->sleepq_len > 0)) {
 		msleep(10);/*  10ms, ATIM(HIQ) Windows */
 
-		/* spin_lock_bh(&psta_bmc->sleep_q.lock); */
-		spin_lock_bh(&pxmitpriv->lock);
+		spin_lock_bh(&psta_bmc->sleep_q.lock);
 
 		xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
 		xmitframe_plist = get_next(xmitframe_phead);
@@ -6717,8 +6715,7 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 			rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
 		}
 
-		/* spin_unlock_bh(&psta_bmc->sleep_q.lock); */
-		spin_unlock_bh(&pxmitpriv->lock);
+		spin_unlock_bh(&psta_bmc->sleep_q.lock);
 
 		/* check hi queue and bmc_sleepq */
 		rtw_chk_hi_queue_cmd(padapter);
diff --git a/drivers/staging/rtl8723bs/core/rtw_recv.c b/drivers/staging/rtl8723bs/core/rtw_recv.c
index 6979f8dbccb84..0d47e6e121777 100644
--- a/drivers/staging/rtl8723bs/core/rtw_recv.c
+++ b/drivers/staging/rtl8723bs/core/rtw_recv.c
@@ -1144,10 +1144,8 @@ sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_
 		if ((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) {
 			struct list_head	*xmitframe_plist, *xmitframe_phead;
 			struct xmit_frame *pxmitframe = NULL;
-			struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
-			/* spin_lock_bh(&psta->sleep_q.lock); */
-			spin_lock_bh(&pxmitpriv->lock);
+			spin_lock_bh(&psta->sleep_q.lock);
 
 			xmitframe_phead = get_list_head(&psta->sleep_q);
 			xmitframe_plist = get_next(xmitframe_phead);
@@ -1182,12 +1180,10 @@ sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_
 					update_beacon(padapter, _TIM_IE_, NULL, true);
 				}
 
-				/* spin_unlock_bh(&psta->sleep_q.lock); */
-				spin_unlock_bh(&pxmitpriv->lock);
+				spin_unlock_bh(&psta->sleep_q.lock);
 
 			} else {
-				/* spin_unlock_bh(&psta->sleep_q.lock); */
-				spin_unlock_bh(&pxmitpriv->lock);
+				spin_unlock_bh(&psta->sleep_q.lock);
 
 				/* DBG_871X("no buffered packets to xmit\n"); */
 				if (pstapriv->tim_bitmap&BIT(psta->aid)) {
diff --git a/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c b/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
index e3f56c6cc882e..b1784b4e466f3 100644
--- a/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
@@ -330,46 +330,48 @@ u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta)
 
 	/* list_del_init(&psta->wakeup_list); */
 
-	spin_lock_bh(&pxmitpriv->lock);
-
+	spin_lock_bh(&psta->sleep_q.lock);
 	rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
 	psta->sleepq_len = 0;
+	spin_unlock_bh(&psta->sleep_q.lock);
+
+	spin_lock_bh(&pxmitpriv->lock);
 
 	/* vo */
-	/* spin_lock_bh(&(pxmitpriv->vo_pending.lock)); */
+	spin_lock_bh(&pstaxmitpriv->vo_q.sta_pending.lock);
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits;
 	phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt;
 	pstaxmitpriv->vo_q.qcnt = 0;
-	/* spin_unlock_bh(&(pxmitpriv->vo_pending.lock)); */
+	spin_unlock_bh(&pstaxmitpriv->vo_q.sta_pending.lock);
 
 	/* vi */
-	/* spin_lock_bh(&(pxmitpriv->vi_pending.lock)); */
+	spin_lock_bh(&pstaxmitpriv->vi_q.sta_pending.lock);
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits+1;
 	phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt;
 	pstaxmitpriv->vi_q.qcnt = 0;
-	/* spin_unlock_bh(&(pxmitpriv->vi_pending.lock)); */
+	spin_unlock_bh(&pstaxmitpriv->vi_q.sta_pending.lock);
 
 	/* be */
-	/* spin_lock_bh(&(pxmitpriv->be_pending.lock)); */
+	spin_lock_bh(&pstaxmitpriv->be_q.sta_pending.lock);
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->be_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits+2;
 	phwxmit->accnt -= pstaxmitpriv->be_q.qcnt;
 	pstaxmitpriv->be_q.qcnt = 0;
-	/* spin_unlock_bh(&(pxmitpriv->be_pending.lock)); */
+	spin_unlock_bh(&pstaxmitpriv->be_q.sta_pending.lock);
 
 	/* bk */
-	/* spin_lock_bh(&(pxmitpriv->bk_pending.lock)); */
+	spin_lock_bh(&pstaxmitpriv->bk_q.sta_pending.lock);
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits+3;
 	phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt;
 	pstaxmitpriv->bk_q.qcnt = 0;
-	/* spin_unlock_bh(&(pxmitpriv->bk_pending.lock)); */
+	spin_unlock_bh(&pstaxmitpriv->bk_q.sta_pending.lock);
 
 	spin_unlock_bh(&pxmitpriv->lock);
 
diff --git a/drivers/staging/rtl8723bs/core/rtw_xmit.c b/drivers/staging/rtl8723bs/core/rtw_xmit.c
index 6ecaff9728fd4..d78cff7ed6a01 100644
--- a/drivers/staging/rtl8723bs/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723bs/core/rtw_xmit.c
@@ -1871,8 +1871,6 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 	struct list_head	*plist, *phead;
 	struct	xmit_frame	*pxmitframe;
 
-	spin_lock_bh(&pframequeue->lock);
-
 	phead = get_list_head(pframequeue);
 	plist = get_next(phead);
 
@@ -1883,7 +1881,6 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 
 		rtw_free_xmitframe(pxmitpriv, pxmitframe);
 	}
-	spin_unlock_bh(&pframequeue->lock);
 }
 
 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
@@ -1946,6 +1943,7 @@ s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
 	struct sta_info *psta;
 	struct tx_servq	*ptxservq;
 	struct pkt_attrib	*pattrib = &pxmitframe->attrib;
+	struct xmit_priv *xmit_priv = &padapter->xmitpriv;
 	struct hw_xmit	*phwxmits =  padapter->xmitpriv.hwxmits;
 	sint res = _SUCCESS;
 
@@ -1974,12 +1972,14 @@ s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
 
 	ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
 
+	spin_lock_bh(&xmit_priv->lock);
 	if (list_empty(&ptxservq->tx_pending))
 		list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
 
 	list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
 	ptxservq->qcnt++;
 	phwxmits[ac_index].accnt++;
+	spin_unlock_bh(&xmit_priv->lock);
 
 exit:
 
@@ -2397,11 +2397,10 @@ void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
 	struct list_head	*xmitframe_plist, *xmitframe_phead;
 	struct xmit_frame *pxmitframe = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
-	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
 	psta_bmc = rtw_get_bcmc_stainfo(padapter);
 
-	spin_lock_bh(&pxmitpriv->lock);
+	spin_lock_bh(&psta->sleep_q.lock);
 
 	xmitframe_phead = get_list_head(&psta->sleep_q);
 	xmitframe_plist = get_next(xmitframe_phead);
@@ -2509,7 +2508,7 @@ void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
 
 _exit:
 
-	spin_unlock_bh(&pxmitpriv->lock);
+	spin_unlock_bh(&psta->sleep_q.lock);
 
 	if (update_mask)
 		update_beacon(padapter, _TIM_IE_, NULL, true);
@@ -2521,9 +2520,8 @@ void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *pst
 	struct list_head	*xmitframe_plist, *xmitframe_phead;
 	struct xmit_frame *pxmitframe = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
-	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
-	spin_lock_bh(&pxmitpriv->lock);
+	spin_lock_bh(&psta->sleep_q.lock);
 
 	xmitframe_phead = get_list_head(&psta->sleep_q);
 	xmitframe_plist = get_next(xmitframe_phead);
@@ -2579,7 +2577,7 @@ void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *pst
 		}
 	}
 
-	spin_unlock_bh(&pxmitpriv->lock);
+	spin_unlock_bh(&psta->sleep_q.lock);
 }
 
 void enqueue_pending_xmitbuf(
diff --git a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
index 44799c4a9f35b..ce5bf2861d0c1 100644
--- a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
+++ b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
@@ -572,9 +572,7 @@ s32 rtl8723bs_hal_xmit(
 			rtw_issue_addbareq_cmd(padapter, pxmitframe);
 	}
 
-	spin_lock_bh(&pxmitpriv->lock);
 	err = rtw_xmitframe_enqueue(padapter, pxmitframe);
-	spin_unlock_bh(&pxmitpriv->lock);
 	if (err != _SUCCESS) {
 		RT_TRACE(_module_hal_xmit_c_, _drv_err_, ("rtl8723bs_hal_xmit: enqueue xmitframe fail\n"));
 		rtw_free_xmitframe(pxmitpriv, pxmitframe);
-- 
GitLab


From 568d94c5c9f072b80097d89c024507af82c0c137 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@gmail.com>
Date: Sat, 18 Sep 2021 19:29:30 +0200
Subject: [PATCH 1553/4878] ARM: BCM53016: Specify switch ports for Meraki MR32
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 6abc4ca5a28070945e0d68cb4160b309bfbf4b8b ]

the switch identifies itself as a BCM53012 (rev 5)...
This patch has been tested & verified on OpenWrt's
snapshot with Linux 5.10 (didn't test any older kernels).
The MR32 is able to "talk to the network" as before with
OpenWrt's SWITCHDEV b53 driver.

| b53-srab-switch 18007000.ethernet-switch: found switch: BCM53012, rev 5
| libphy: dsa slave smi: probed
| b53-srab-switch 18007000.ethernet-switch poe (uninitialized):
|	PHY [dsa-0.0:00] driver [Generic PHY] (irq=POLL)
| b53-srab-switch 18007000.ethernet-switch: Using legacy PHYLIB callbacks.
|	Please migrate to PHYLINK!
| DSA: tree 0 setup

Reported-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm53016-meraki-mr32.dts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
index 612d61852bfb9..577a4dc604d93 100644
--- a/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
+++ b/arch/arm/boot/dts/bcm53016-meraki-mr32.dts
@@ -195,3 +195,25 @@
 		};
 	};
 };
+
+&srab {
+	status = "okay";
+
+	ports {
+		port@0 {
+			reg = <0>;
+			label = "poe";
+		};
+
+		port@5 {
+			reg = <5>;
+			label = "cpu";
+			ethernet = <&gmac0>;
+
+			fixed-link {
+				speed = <1000>;
+				duplex-full;
+			};
+		};
+	};
+};
-- 
GitLab


From e52fecdd0c142b95c720683885b06ee3f0e065c8 Mon Sep 17 00:00:00 2001
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Date: Wed, 1 Sep 2021 20:31:21 +0200
Subject: [PATCH 1554/4878] arm64: dts: qcom: msm8998: Fix CPU/L2 idle state
 latency and residency

[ Upstream commit 3f1dcaff642e75c1d2ad03f783fa8a3b1f56dd50 ]

The entry/exit latency and minimum residency in state for the idle
states of MSM8998 were ..bad: first of all, for all of them the
timings were written for CPU sleep but the min-residency-us param
was miscalculated (supposedly, while porting this from downstream);
Then, the power collapse states are setting PC on both the CPU
cluster *and* the L2 cache, which have different timings: in the
specific case of L2 the times are higher so these ones should be
taken into account instead of the CPU ones.

This parameter misconfiguration was not giving particular issues
because on MSM8998 there was no CPU scaling at all, so cluster/L2
power collapse was rarely (if ever) hit.
When CPU scaling is enabled, though, the wrong timings will produce
SoC unstability shown to the user as random, apparently error-less,
sudden reboots and/or lockups.

This set of parameters are stabilizing the SoC when CPU scaling is
ON and when power collapse is frequently hit.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210901183123.1087392-3-angelogioacchino.delregno@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/msm8998.dtsi | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
index c45870600909f..9e04ac3f596d0 100644
--- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
@@ -300,38 +300,42 @@
 			LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
 				compatible = "arm,idle-state";
 				idle-state-name = "little-retention";
+				/* CPU Retention (C2D), L2 Active */
 				arm,psci-suspend-param = <0x00000002>;
 				entry-latency-us = <81>;
 				exit-latency-us = <86>;
-				min-residency-us = <200>;
+				min-residency-us = <504>;
 			};
 
 			LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
 				compatible = "arm,idle-state";
 				idle-state-name = "little-power-collapse";
+				/* CPU + L2 Power Collapse (C3, D4) */
 				arm,psci-suspend-param = <0x40000003>;
-				entry-latency-us = <273>;
-				exit-latency-us = <612>;
-				min-residency-us = <1000>;
+				entry-latency-us = <814>;
+				exit-latency-us = <4562>;
+				min-residency-us = <9183>;
 				local-timer-stop;
 			};
 
 			BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
 				compatible = "arm,idle-state";
 				idle-state-name = "big-retention";
+				/* CPU Retention (C2D), L2 Active */
 				arm,psci-suspend-param = <0x00000002>;
 				entry-latency-us = <79>;
 				exit-latency-us = <82>;
-				min-residency-us = <200>;
+				min-residency-us = <1302>;
 			};
 
 			BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
 				compatible = "arm,idle-state";
 				idle-state-name = "big-power-collapse";
+				/* CPU + L2 Power Collapse (C3, D4) */
 				arm,psci-suspend-param = <0x40000003>;
-				entry-latency-us = <336>;
-				exit-latency-us = <525>;
-				min-residency-us = <1000>;
+				entry-latency-us = <724>;
+				exit-latency-us = <2027>;
+				min-residency-us = <9419>;
 				local-timer-stop;
 			};
 		};
-- 
GitLab


From 36446a094a45b3bcf086819843d590f6e4696091 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Sun, 29 Aug 2021 19:16:26 +0800
Subject: [PATCH 1555/4878] arm64: dts: qcom: ipq6018: Fix
 qcom,controlled-remotely property

[ Upstream commit 3509de752ea14c7e5781b3a56a4a0bf832f5723a ]

Property qcom,controlled-remotely should be boolean.  Fix it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210829111628.5543-2-shawn.guo@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/ipq6018.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
index 3ceb36cac512f..9cb8f7a052df9 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -200,7 +200,7 @@
 			clock-names = "bam_clk";
 			#dma-cells = <1>;
 			qcom,ee = <1>;
-			qcom,controlled-remotely = <1>;
+			qcom,controlled-remotely;
 			qcom,config-pipe-trust-reg = <0>;
 		};
 
-- 
GitLab


From 19d193c5761a0f6fc03be00447bc209f8d266d8b Mon Sep 17 00:00:00 2001
From: Michael Walle <michael@walle.cc>
Date: Thu, 26 Aug 2021 14:35:28 +0200
Subject: [PATCH 1556/4878] arm64: dts: freescale: fix arm,sp805 compatible
 string

[ Upstream commit 99a7cacc66cae92db40139b57689be2af75fc6b8 ]

According to Documentation/devicetree/bindings/watchdog/arm,sp805.yaml
the compatible is:
  compatible = "arm,sp805", "arm,primecell";

The current compatible string doesn't exist at all. Fix it.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 16 ++++++++--------
 arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 16 ++++++++--------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 692d8f4a206da..334af263d7b5d 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -673,56 +673,56 @@
 		};
 
 		cluster1_core0_watchdog: wdt@c000000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc000000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster1_core1_watchdog: wdt@c010000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc010000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster1_core2_watchdog: wdt@c020000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc020000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster1_core3_watchdog: wdt@c030000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc030000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster2_core0_watchdog: wdt@c100000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc100000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster2_core1_watchdog: wdt@c110000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc110000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster2_core2_watchdog: wdt@c120000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc120000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster2_core3_watchdog: wdt@c130000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc130000 0x0 0x1000>;
 			clocks = <&clockgen 4 15>, <&clockgen 4 15>;
 			clock-names = "wdog_clk", "apb_pclk";
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index 4d34d82b898a4..eb6641a3566e1 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
@@ -351,56 +351,56 @@
 		};
 
 		cluster1_core0_watchdog: wdt@c000000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc000000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster1_core1_watchdog: wdt@c010000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc010000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster2_core0_watchdog: wdt@c100000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc100000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster2_core1_watchdog: wdt@c110000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc110000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster3_core0_watchdog: wdt@c200000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc200000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster3_core1_watchdog: wdt@c210000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc210000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster4_core0_watchdog: wdt@c300000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc300000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		cluster4_core1_watchdog: wdt@c310000 {
-			compatible = "arm,sp805-wdt", "arm,primecell";
+			compatible = "arm,sp805", "arm,primecell";
 			reg = <0x0 0xc310000 0x0 0x1000>;
 			clocks = <&clockgen 4 3>, <&clockgen 4 3>;
 			clock-names = "wdog_clk", "apb_pclk";
-- 
GitLab


From 0c6daf4799613b16dd4ad86fbc34f719ceb69911 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Fri, 24 Sep 2021 14:24:17 -0500
Subject: [PATCH 1557/4878] ASoC: SOF: Intel: hda-dai: fix potential locking
 issue

[ Upstream commit a20f3b10de61add5e14b6ce4df982f4df2a4cbbc ]

The initial hdac_stream code was adapted a third time with the same
locking issues. Move the spin_lock outside the loops and make sure the
fields are protected on read/write.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210924192417.169243-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/intel/hda-dai.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c
index c6cb8c212eca5..ef316311e959a 100644
--- a/sound/soc/sof/intel/hda-dai.c
+++ b/sound/soc/sof/intel/hda-dai.c
@@ -68,6 +68,7 @@ static struct hdac_ext_stream *
 		return NULL;
 	}
 
+	spin_lock_irq(&bus->reg_lock);
 	list_for_each_entry(stream, &bus->stream_list, list) {
 		struct hdac_ext_stream *hstream =
 			stream_to_hdac_ext_stream(stream);
@@ -107,12 +108,12 @@ static struct hdac_ext_stream *
 		 * is updated in snd_hdac_ext_stream_decouple().
 		 */
 		if (!res->decoupled)
-			snd_hdac_ext_stream_decouple(bus, res, true);
-		spin_lock_irq(&bus->reg_lock);
+			snd_hdac_ext_stream_decouple_locked(bus, res, true);
+
 		res->link_locked = 1;
 		res->link_substream = substream;
-		spin_unlock_irq(&bus->reg_lock);
 	}
+	spin_unlock_irq(&bus->reg_lock);
 
 	return res;
 }
-- 
GitLab


From ae2207a078cf68b8a06a4185e8d2baab3aea31ec Mon Sep 17 00:00:00 2001
From: Stefan Riedmueller <s.riedmueller@phytec.de>
Date: Mon, 27 Sep 2021 09:28:56 +0200
Subject: [PATCH 1558/4878] clk: imx: imx6ul: Move csi_sel mux to correct base
 register

[ Upstream commit 2f9d61869640f732599ec36b984c2b5c46067519 ]

The csi_sel mux register is located in the CCM register base and not the
CCM_ANALOG register base. So move it to the correct position in code.

Otherwise changing the parent of the csi clock can lead to a complete
system failure due to the CCM_ANALOG_PLL_SYS_TOG register being falsely
modified.

Also remove the SET_RATE_PARENT flag since one possible supply for the
csi_sel mux is the system PLL which we don't want to modify.

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20210927072857.3940880-1-s.riedmueller@phytec.de
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/imx/clk-imx6ul.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c
index 5dbb6a9377324..206e4c43f68f8 100644
--- a/drivers/clk/imx/clk-imx6ul.c
+++ b/drivers/clk/imx/clk-imx6ul.c
@@ -161,7 +161,6 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
 	hws[IMX6UL_PLL5_BYPASS] = imx_clk_hw_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT);
 	hws[IMX6UL_PLL6_BYPASS] = imx_clk_hw_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT);
 	hws[IMX6UL_PLL7_BYPASS] = imx_clk_hw_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT);
-	hws[IMX6UL_CLK_CSI_SEL] = imx_clk_hw_mux_flags("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels), CLK_SET_RATE_PARENT);
 
 	/* Do not bypass PLLs initially */
 	clk_set_parent(hws[IMX6UL_PLL1_BYPASS]->clk, hws[IMX6UL_CLK_PLL1]->clk);
@@ -270,6 +269,7 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node)
 	hws[IMX6UL_CLK_ECSPI_SEL]	  = imx_clk_hw_mux("ecspi_sel",	base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels));
 	hws[IMX6UL_CLK_LCDIF_PRE_SEL]	  = imx_clk_hw_mux_flags("lcdif_pre_sel", base + 0x38, 15, 3, lcdif_pre_sels, ARRAY_SIZE(lcdif_pre_sels), CLK_SET_RATE_PARENT);
 	hws[IMX6UL_CLK_LCDIF_SEL]	  = imx_clk_hw_mux("lcdif_sel",	base + 0x38, 9, 3, lcdif_sels, ARRAY_SIZE(lcdif_sels));
+	hws[IMX6UL_CLK_CSI_SEL]		  = imx_clk_hw_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels));
 
 	hws[IMX6UL_CLK_LDB_DI0_DIV_SEL]  = imx_clk_hw_mux("ldb_di0", base + 0x20, 10, 1, ldb_di0_div_sels, ARRAY_SIZE(ldb_di0_div_sels));
 	hws[IMX6UL_CLK_LDB_DI1_DIV_SEL]  = imx_clk_hw_mux("ldb_di1", base + 0x20, 11, 1, ldb_di1_div_sels, ARRAY_SIZE(ldb_di1_div_sels));
-- 
GitLab


From 97f3cbb57b1618290cc99d46f91077826acf2744 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 2 Oct 2021 23:14:57 +0200
Subject: [PATCH 1559/4878] ASoC: nau8824: Add DMI quirk mechanism for
 active-high jack-detect

[ Upstream commit 92d3360108f1839ca40451bad20ff67dd24a1964 ]

Add a quirk mechanism to allow specifying that active-high jack-detection
should be used on platforms where this info is not available in devicetree.

And add an entry for the Cyberbook T116 tablet to the DMI table, so that
jack-detection will work properly on this tablet.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211002211459.110124-2-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/nau8824.c | 40 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/sound/soc/codecs/nau8824.c b/sound/soc/codecs/nau8824.c
index 15bd8335f6678..c8ccfa2fff848 100644
--- a/sound/soc/codecs/nau8824.c
+++ b/sound/soc/codecs/nau8824.c
@@ -8,6 +8,7 @@
 
 #include <linux/module.h>
 #include <linux/delay.h>
+#include <linux/dmi.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
@@ -27,6 +28,12 @@
 
 #include "nau8824.h"
 
+#define NAU8824_JD_ACTIVE_HIGH			BIT(0)
+
+static int nau8824_quirk;
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, uint, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
 
 static int nau8824_config_sysclk(struct nau8824 *nau8824,
 	int clk_id, unsigned int freq);
@@ -1875,6 +1882,34 @@ static int nau8824_read_device_properties(struct device *dev,
 	return 0;
 }
 
+/* Please keep this list alphabetically sorted */
+static const struct dmi_system_id nau8824_quirk_table[] = {
+	{
+		/* Cyberbook T116 rugged tablet */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
+			DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "20170531"),
+		},
+		.driver_data = (void *)(NAU8824_JD_ACTIVE_HIGH),
+	},
+	{}
+};
+
+static void nau8824_check_quirks(void)
+{
+	const struct dmi_system_id *dmi_id;
+
+	if (quirk_override != -1) {
+		nau8824_quirk = quirk_override;
+		return;
+	}
+
+	dmi_id = dmi_first_match(nau8824_quirk_table);
+	if (dmi_id)
+		nau8824_quirk = (unsigned long)dmi_id->driver_data;
+}
+
 static int nau8824_i2c_probe(struct i2c_client *i2c,
 	const struct i2c_device_id *id)
 {
@@ -1899,6 +1934,11 @@ static int nau8824_i2c_probe(struct i2c_client *i2c,
 	nau8824->irq = i2c->irq;
 	sema_init(&nau8824->jd_sem, 1);
 
+	nau8824_check_quirks();
+
+	if (nau8824_quirk & NAU8824_JD_ACTIVE_HIGH)
+		nau8824->jkdet_polarity = 0;
+
 	nau8824_print_device_properties(nau8824);
 
 	ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value);
-- 
GitLab


From 055eced3edf5b675d12189081303f6285ef26511 Mon Sep 17 00:00:00 2001
From: Guo Zhi <qtxuning1999@sjtu.edu.cn>
Date: Wed, 29 Sep 2021 20:25:37 +0800
Subject: [PATCH 1560/4878] scsi: advansys: Fix kernel pointer leak

[ Upstream commit d4996c6eac4c81b8872043e9391563f67f13e406 ]

Pointers should be printed with %p or %px rather than cast to 'unsigned
long' and printed with %lx.

Change %lx to %p to print the hashed pointer.

Link: https://lore.kernel.org/r/20210929122538.1158235-1-qtxuning1999@sjtu.edu.cn
Signed-off-by: Guo Zhi <qtxuning1999@sjtu.edu.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/advansys.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index c2c7850ff7b42..727d8f019eddd 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -3366,8 +3366,8 @@ static void asc_prt_adv_board_info(struct seq_file *m, struct Scsi_Host *shost)
 		   shost->host_no);
 
 	seq_printf(m,
-		   " iop_base 0x%lx, cable_detect: %X, err_code %u\n",
-		   (unsigned long)v->iop_base,
+		   " iop_base 0x%p, cable_detect: %X, err_code %u\n",
+		   v->iop_base,
 		   AdvReadWordRegister(iop_base,IOPW_SCSI_CFG1) & CABLE_DETECT,
 		   v->err_code);
 
-- 
GitLab


From 02a22911ed87fb677ec01f459614f8cca619cd08 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Mon, 4 Oct 2021 16:35:09 -0500
Subject: [PATCH 1561/4878] ALSA: intel-dsp-config: add quirk for APL/GLK/TGL
 devices based on ES8336 codec

[ Upstream commit 9d36ceab94151f07cf3fcb067213ac87937adf12 ]

These devices are based on an I2C/I2S device, we need to force the use
of the SOF driver otherwise the legacy HDaudio driver will be loaded -
only HDMI will be supported.

Co-developed-by: Huajun Li <huajun.li@intel.com>
Signed-off-by: Huajun Li <huajun.li@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211004213512.220836-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 61e1de6d7be0a..6cdb3db7507b1 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -30,6 +30,7 @@ struct config_entry {
 	u32 flags;
 	u16 device;
 	const struct dmi_system_id *dmi_table;
+	u8 codec_hid[ACPI_ID_LEN];
 };
 
 /*
@@ -55,7 +56,7 @@ static const struct config_entry config_table[] = {
 /*
  * Apollolake (Broxton-P)
  * the legacy HDAudio driver is used except on Up Squared (SOF) and
- * Chromebooks (SST)
+ * Chromebooks (SST), as well as devices based on the ES8336 codec
  */
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
 	{
@@ -72,6 +73,11 @@ static const struct config_entry config_table[] = {
 			{}
 		}
 	},
+	{
+		.flags = FLAG_SOF,
+		.device = 0x5a98,
+		.codec_hid = "ESSX8336",
+	},
 #endif
 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
 	{
@@ -136,7 +142,7 @@ static const struct config_entry config_table[] = {
 
 /*
  * Geminilake uses legacy HDAudio driver except for Google
- * Chromebooks
+ * Chromebooks and devices based on the ES8336 codec
  */
 /* Geminilake */
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
@@ -153,6 +159,11 @@ static const struct config_entry config_table[] = {
 			{}
 		}
 	},
+	{
+		.flags = FLAG_SOF,
+		.device = 0x3198,
+		.codec_hid = "ESSX8336",
+	},
 #endif
 
 /*
@@ -310,6 +321,11 @@ static const struct config_entry config_table[] = {
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0x43c8,
 	},
+	{
+		.flags = FLAG_SOF,
+		.device = 0xa0c8,
+		.codec_hid = "ESSX8336",
+	},
 #endif
 
 /* Elkhart Lake */
@@ -337,6 +353,8 @@ static const struct config_entry *snd_intel_dsp_find_config
 			continue;
 		if (table->dmi_table && !dmi_check_system(table->dmi_table))
 			continue;
+		if (table->codec_hid[0] && !acpi_dev_present(table->codec_hid, NULL, -1))
+			continue;
 		return table;
 	}
 	return NULL;
-- 
GitLab


From c6c9bbe7facb10b03aa3b61ee0f8231a414e209a Mon Sep 17 00:00:00 2001
From: Luis Chamberlain <mcgrof@kernel.org>
Date: Fri, 17 Sep 2021 11:22:13 -0700
Subject: [PATCH 1562/4878] firmware_loader: fix pre-allocated buf built-in
 firmware use

[ Upstream commit f7a07f7b96033df7709042ff38e998720a3f7119 ]

The firmware_loader can be used with a pre-allocated buffer
through the use of the API calls:

  o request_firmware_into_buf()
  o request_partial_firmware_into_buf()

If the firmware was built-in and present, our current check
for if the built-in firmware fits into the pre-allocated buffer
does not return any errors, and we proceed to tell the caller
that everything worked fine. It's a lie and no firmware would
end up being copied into the pre-allocated buffer. So if the
caller trust the result it may end up writing a bunch of 0's
to a device!

Fix this by making the function that checks for the pre-allocated
buffer return non-void. Since the typical use case is when no
pre-allocated buffer is provided make this return successfully
for that case. If the built-in firmware does *not* fit into the
pre-allocated buffer size return a failure as we should have
been doing before.

I'm not aware of users of the built-in firmware using the API
calls with a pre-allocated buffer, as such I doubt this fixes
any real life issue. But you never know... perhaps some oddball
private tree might use it.

In so far as upstream is concerned this just fixes our code for
correctness.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20210917182226.3532898-2-mcgrof@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/firmware_loader/main.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index f41e4e4993d37..1372f40d0371f 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -99,12 +99,15 @@ static struct firmware_cache fw_cache;
 extern struct builtin_fw __start_builtin_fw[];
 extern struct builtin_fw __end_builtin_fw[];
 
-static void fw_copy_to_prealloc_buf(struct firmware *fw,
+static bool fw_copy_to_prealloc_buf(struct firmware *fw,
 				    void *buf, size_t size)
 {
-	if (!buf || size < fw->size)
-		return;
+	if (!buf)
+		return true;
+	if (size < fw->size)
+		return false;
 	memcpy(buf, fw->data, fw->size);
+	return true;
 }
 
 static bool fw_get_builtin_firmware(struct firmware *fw, const char *name,
@@ -116,9 +119,7 @@ static bool fw_get_builtin_firmware(struct firmware *fw, const char *name,
 		if (strcmp(name, b_fw->name) == 0) {
 			fw->size = b_fw->size;
 			fw->data = b_fw->data;
-			fw_copy_to_prealloc_buf(fw, buf, size);
-
-			return true;
+			return fw_copy_to_prealloc_buf(fw, buf, size);
 		}
 	}
 
-- 
GitLab


From 02d9ebe0ccfaf9d2a49496bee05752ad00114838 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@kernel.org>
Date: Thu, 7 Oct 2021 15:08:30 +0300
Subject: [PATCH 1563/4878] ARM: dts: omap: fix gpmc,mux-add-data type

[ Upstream commit 51b9e22ffd3c4c56cbb7caae9750f70e55ffa603 ]

gpmc,mux-add-data is not boolean.

Fixes the below errors flagged by dtbs_check.

"ethernet@4,0:gpmc,mux-add-data: True is not of type 'array'"

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi         | 2 +-
 arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
index 7f6aefd134514..e7534fe9c53cf 100644
--- a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
+++ b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
@@ -29,7 +29,7 @@
 		compatible = "smsc,lan9221","smsc,lan9115";
 		bank-width = <2>;
 
-		gpmc,mux-add-data;
+		gpmc,mux-add-data = <0>;
 		gpmc,cs-on-ns = <0>;
 		gpmc,cs-rd-off-ns = <42>;
 		gpmc,cs-wr-off-ns = <36>;
diff --git a/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi b/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
index e5da3bc6f1050..218a10c0d8159 100644
--- a/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
+++ b/arch/arm/boot/dts/omap3-overo-tobiduo-common.dtsi
@@ -22,7 +22,7 @@
 		compatible = "smsc,lan9221","smsc,lan9115";
 		bank-width = <2>;
 
-		gpmc,mux-add-data;
+		gpmc,mux-add-data = <0>;
 		gpmc,cs-on-ns = <0>;
 		gpmc,cs-rd-off-ns = <42>;
 		gpmc,cs-wr-off-ns = <36>;
-- 
GitLab


From 2474eb7fc3bfbce10f7b8ea431fcffe5dd5f5100 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Mon, 11 Oct 2021 21:49:20 +0800
Subject: [PATCH 1564/4878] usb: host: ohci-tmio: check return value after
 calling platform_get_resource()

[ Upstream commit 9eff2b2e59fda25051ab36cd1cb5014661df657b ]

It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211011134920.118477-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/ohci-tmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 08ec2ab0d95a5..3f3d62dc06746 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c
@@ -199,7 +199,7 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev)
 	if (usb_disabled())
 		return -ENODEV;
 
-	if (!cell)
+	if (!cell || !regs || !config || !sram)
 		return -EINVAL;
 
 	if (irq < 0)
-- 
GitLab


From cbba09f86976fad6454c66ece112736748682fa6 Mon Sep 17 00:00:00 2001
From: Li Yang <leoyang.li@nxp.com>
Date: Tue, 12 Oct 2021 18:58:22 -0500
Subject: [PATCH 1565/4878] ARM: dts: ls1021a: move thermal-zones node out of
 soc/

[ Upstream commit 1ee1500ef717eefb5d9bdaf97905cb81b4e69aa4 ]

This fixes dtbs-check error from simple-bus schema:
soc: thermal-zones: {'type': 'object'} is not allowed for {'cpu-thermal': ..... }
        From schema: /home/leo/.local/lib/python3.8/site-packages/dtschema/schemas/simple-bus.yaml

Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/ls1021a.dtsi | 66 +++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 33 deletions(-)

diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index 827373ef1a547..37026b2fa6497 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -331,39 +331,6 @@
 			#thermal-sensor-cells = <1>;
 		};
 
-		thermal-zones {
-			cpu_thermal: cpu-thermal {
-				polling-delay-passive = <1000>;
-				polling-delay = <5000>;
-
-				thermal-sensors = <&tmu 0>;
-
-				trips {
-					cpu_alert: cpu-alert {
-						temperature = <85000>;
-						hysteresis = <2000>;
-						type = "passive";
-					};
-					cpu_crit: cpu-crit {
-						temperature = <95000>;
-						hysteresis = <2000>;
-						type = "critical";
-					};
-				};
-
-				cooling-maps {
-					map0 {
-						trip = <&cpu_alert>;
-						cooling-device =
-							<&cpu0 THERMAL_NO_LIMIT
-							THERMAL_NO_LIMIT>,
-							<&cpu1 THERMAL_NO_LIMIT
-							THERMAL_NO_LIMIT>;
-					};
-				};
-			};
-		};
-
 		dspi0: spi@2100000 {
 			compatible = "fsl,ls1021a-v1.0-dspi";
 			#address-cells = <1>;
@@ -1018,4 +985,37 @@
 			big-endian;
 		};
 	};
+
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			polling-delay-passive = <1000>;
+			polling-delay = <5000>;
+
+			thermal-sensors = <&tmu 0>;
+
+			trips {
+				cpu_alert: cpu-alert {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+				cpu_crit: cpu-crit {
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert>;
+					cooling-device =
+						<&cpu0 THERMAL_NO_LIMIT
+						THERMAL_NO_LIMIT>,
+						<&cpu1 THERMAL_NO_LIMIT
+						THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+	};
 };
-- 
GitLab


From c788ac47502edf5541b411520b8350301afff178 Mon Sep 17 00:00:00 2001
From: Li Yang <leoyang.li@nxp.com>
Date: Tue, 12 Oct 2021 18:58:23 -0500
Subject: [PATCH 1566/4878] ARM: dts: ls1021a-tsn: use generic "jedec,spi-nor"
 compatible for flash

[ Upstream commit 05e63b48b20fa70726be505a7660d1a07bc1cffb ]

We cannot list all the possible chips used in different board revisions,
just use the generic "jedec,spi-nor" compatible instead.  This also
fixes dtbs_check error:
['jedec,spi-nor', 's25fl256s1', 's25fl512s'] is too long

Signed-off-by: Li Yang <leoyang.li@nxp.com>
Reviewed-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/ls1021a-tsn.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ls1021a-tsn.dts b/arch/arm/boot/dts/ls1021a-tsn.dts
index 9d8f0c2a8aba3..aca78b5eddf20 100644
--- a/arch/arm/boot/dts/ls1021a-tsn.dts
+++ b/arch/arm/boot/dts/ls1021a-tsn.dts
@@ -251,7 +251,7 @@
 
 	flash@0 {
 		/* Rev. A uses 64MB flash, Rev. B & C use 32MB flash */
-		compatible = "jedec,spi-nor", "s25fl256s1", "s25fl512s";
+		compatible = "jedec,spi-nor";
 		spi-max-frequency = <20000000>;
 		#address-cells = <1>;
 		#size-cells = <1>;
-- 
GitLab


From da82a207c4dc30d991b298dc9094e485b21f45a3 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 15 Oct 2021 23:26:02 -0700
Subject: [PATCH 1567/4878] ALSA: ISA: not for M68K

[ Upstream commit 3c05f1477e62ea5a0a8797ba6a545b1dc751fb31 ]

On m68k, compiling drivers under SND_ISA causes build errors:

../sound/core/isadma.c: In function 'snd_dma_program':
../sound/core/isadma.c:33:17: error: implicit declaration of function 'claim_dma_lock' [-Werror=implicit-function-declaration]
   33 |         flags = claim_dma_lock();
      |                 ^~~~~~~~~~~~~~
../sound/core/isadma.c:41:9: error: implicit declaration of function 'release_dma_lock' [-Werror=implicit-function-declaration]
   41 |         release_dma_lock(flags);
      |         ^~~~~~~~~~~~~~~~

../sound/isa/sb/sb16_main.c: In function 'snd_sb16_playback_prepare':
../sound/isa/sb/sb16_main.c:253:72: error: 'DMA_AUTOINIT' undeclared (first use in this function)
  253 |         snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
      |                                                                        ^~~~~~~~~~~~
../sound/isa/sb/sb16_main.c:253:72: note: each undeclared identifier is reported only once for each function it appears in
../sound/isa/sb/sb16_main.c: In function 'snd_sb16_capture_prepare':
../sound/isa/sb/sb16_main.c:322:71: error: 'DMA_AUTOINIT' undeclared (first use in this function)
  322 |         snd_dma_program(dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
      |                                                                       ^~~~~~~~~~~~

and more...

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211016062602.3588-1-rdunlap@infradead.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/core/Makefile | 2 ++
 sound/isa/Kconfig   | 2 +-
 sound/pci/Kconfig   | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/core/Makefile b/sound/core/Makefile
index ee4a4a6b99ba7..d123587c0fd8f 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -9,7 +9,9 @@ ifneq ($(CONFIG_SND_PROC_FS),)
 snd-y += info.o
 snd-$(CONFIG_SND_OSSEMUL) += info_oss.o
 endif
+ifneq ($(CONFIG_M68K),y)
 snd-$(CONFIG_ISA_DMA_API) += isadma.o
+endif
 snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o
 snd-$(CONFIG_SND_VMASTER) += vmaster.o
 snd-$(CONFIG_SND_JACK)	  += ctljack.o jack.o
diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig
index 6ffa48dd59830..570b88e0b2018 100644
--- a/sound/isa/Kconfig
+++ b/sound/isa/Kconfig
@@ -22,7 +22,7 @@ config SND_SB16_DSP
 menuconfig SND_ISA
 	bool "ISA sound devices"
 	depends on ISA || COMPILE_TEST
-	depends on ISA_DMA_API
+	depends on ISA_DMA_API && !M68K
 	default y
 	help
 	  Support for sound devices connected via the ISA bus.
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
index 93bc9bef7641f..41ce125971777 100644
--- a/sound/pci/Kconfig
+++ b/sound/pci/Kconfig
@@ -279,6 +279,7 @@ config SND_CS46XX_NEW_DSP
 config SND_CS5530
 	tristate "CS5530 Audio"
 	depends on ISA_DMA_API && (X86_32 || COMPILE_TEST)
+	depends on !M68K
 	select SND_SB16_DSP
 	help
 	  Say Y here to include support for audio on Cyrix/NatSemi CS5530 chips.
-- 
GitLab


From 77e9fed33056f2a88eba9dd4d2d5412f0c7d1f41 Mon Sep 17 00:00:00 2001
From: Guanghui Feng <guanghuifeng@linux.alibaba.com>
Date: Mon, 11 Oct 2021 22:08:24 +0800
Subject: [PATCH 1568/4878] tty: tty_buffer: Fix the softlockup issue in
 flush_to_ldisc

[ Upstream commit 3968ddcf05fb4b9409cd1859feb06a5b0550a1c1 ]

When running ltp testcase(ltp/testcases/kernel/pty/pty04.c) with arm64, there is a soft lockup,
which look like this one:

  Workqueue: events_unbound flush_to_ldisc
  Call trace:
   dump_backtrace+0x0/0x1ec
   show_stack+0x24/0x30
   dump_stack+0xd0/0x128
   panic+0x15c/0x374
   watchdog_timer_fn+0x2b8/0x304
   __run_hrtimer+0x88/0x2c0
   __hrtimer_run_queues+0xa4/0x120
   hrtimer_interrupt+0xfc/0x270
   arch_timer_handler_phys+0x40/0x50
   handle_percpu_devid_irq+0x94/0x220
   __handle_domain_irq+0x88/0xf0
   gic_handle_irq+0x84/0xfc
   el1_irq+0xc8/0x180
   slip_unesc+0x80/0x214 [slip]
   tty_ldisc_receive_buf+0x64/0x80
   tty_port_default_receive_buf+0x50/0x90
   flush_to_ldisc+0xbc/0x110
   process_one_work+0x1d4/0x4b0
   worker_thread+0x180/0x430
   kthread+0x11c/0x120

In the testcase pty04, The first process call the write syscall to send
data to the pty master. At the same time, the workqueue will do the
flush_to_ldisc to pop data in a loop until there is no more data left.
When the sender and workqueue running in different core, the sender sends
data fastly in full time which will result in workqueue doing work in loop
for a long time and occuring softlockup in flush_to_ldisc with kernel
configured without preempt. So I add need_resched check and cond_resched
in the flush_to_ldisc loop to avoid it.

Signed-off-by: Guanghui Feng <guanghuifeng@linux.alibaba.com>
Link: https://lore.kernel.org/r/1633961304-24759-1-git-send-email-guanghuifeng@linux.alibaba.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/tty_buffer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index bd2d91546e327..0fc473321d3e3 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -534,6 +534,9 @@ static void flush_to_ldisc(struct work_struct *work)
 		if (!count)
 			break;
 		head->read += count;
+
+		if (need_resched())
+			cond_resched();
 	}
 
 	mutex_unlock(&buf->lock);
-- 
GitLab


From 9635581aa9998b53240e4e9c6e29a189826e09dc Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 12 Oct 2021 15:23:12 -0700
Subject: [PATCH 1569/4878] MIPS: sni: Fix the build
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c91cf42f61dc77b289784ea7b15a8531defa41c0 ]

This patch fixes the following gcc 10 build error:

arch/mips/sni/time.c: In function ‘a20r_set_periodic’:
arch/mips/sni/time.c:15:26: error: unsigned conversion from ‘int’ to ‘u8’ {aka ‘volatile unsigned char’} changes value from ‘576’ to ‘64’ [-Werror=overflow]
   15 | #define SNI_COUNTER0_DIV ((SNI_CLOCK_TICK_RATE / SNI_COUNTER2_DIV) / HZ)
      |                          ^
arch/mips/sni/time.c:21:45: note: in expansion of macro ‘SNI_COUNTER0_DIV’
   21 |  *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
      |                                             ^~~~~~~~~~~~~~~~

Cc: linux-mips@vger.kernel.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/sni/time.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 240bb68ec2478..ff3ba7e778901 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -18,14 +18,14 @@ static int a20r_set_periodic(struct clock_event_device *evt)
 {
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;
 	wmb();
-	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
+	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV & 0xff;
 	wmb();
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8;
 	wmb();
 
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4;
 	wmb();
-	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV;
+	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV & 0xff;
 	wmb();
 	*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;
 	wmb();
-- 
GitLab


From 3e20cb072679bdb47747ccc8bee3233a4cf0765a Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Wed, 13 Oct 2021 11:39:12 +0800
Subject: [PATCH 1570/4878] scsi: scsi_debug: Fix out-of-bound read in
 resp_readcap16()

[ Upstream commit 4e3ace0051e7e504b55d239daab8789dd89b863c ]

The following warning was observed running syzkaller:

[ 3813.830724] sg_write: data in/out 65466/242 bytes for SCSI command 0x9e-- guessing data in;
[ 3813.830724]    program syz-executor not setting count and/or reply_len properly
[ 3813.836956] ==================================================================
[ 3813.839465] BUG: KASAN: stack-out-of-bounds in sg_copy_buffer+0x157/0x1e0
[ 3813.841773] Read of size 4096 at addr ffff8883cf80f540 by task syz-executor/1549
[ 3813.846612] Call Trace:
[ 3813.846995]  dump_stack+0x108/0x15f
[ 3813.847524]  print_address_description+0xa5/0x372
[ 3813.848243]  kasan_report.cold+0x236/0x2a8
[ 3813.849439]  check_memory_region+0x240/0x270
[ 3813.850094]  memcpy+0x30/0x80
[ 3813.850553]  sg_copy_buffer+0x157/0x1e0
[ 3813.853032]  sg_copy_from_buffer+0x13/0x20
[ 3813.853660]  fill_from_dev_buffer+0x135/0x370
[ 3813.854329]  resp_readcap16+0x1ac/0x280
[ 3813.856917]  schedule_resp+0x41f/0x1630
[ 3813.858203]  scsi_debug_queuecommand+0xb32/0x17e0
[ 3813.862699]  scsi_dispatch_cmd+0x330/0x950
[ 3813.863329]  scsi_request_fn+0xd8e/0x1710
[ 3813.863946]  __blk_run_queue+0x10b/0x230
[ 3813.864544]  blk_execute_rq_nowait+0x1d8/0x400
[ 3813.865220]  sg_common_write.isra.0+0xe61/0x2420
[ 3813.871637]  sg_write+0x6c8/0xef0
[ 3813.878853]  __vfs_write+0xe4/0x800
[ 3813.883487]  vfs_write+0x17b/0x530
[ 3813.884008]  ksys_write+0x103/0x270
[ 3813.886268]  __x64_sys_write+0x77/0xc0
[ 3813.886841]  do_syscall_64+0x106/0x360
[ 3813.887415]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

This issue can be reproduced with the following syzkaller log:

r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x26e1, 0x0)
r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fd/3\x00')
open_by_handle_at(r1, &(0x7f00000003c0)=ANY=[@ANYRESHEX], 0x602000)
r2 = syz_open_dev$sg(&(0x7f0000000000), 0x0, 0x40782)
write$binfmt_aout(r2, &(0x7f0000000340)=ANY=[@ANYBLOB="00000000deff000000000000000000000000000000000000000000000000000047f007af9e107a41ec395f1bded7be24277a1501ff6196a83366f4e6362bc0ff2b247f68a972989b094b2da4fb3607fcf611a22dd04310d28c75039d"], 0x126)

In resp_readcap16() we get "int alloc_len" value -1104926854, and then pass
the huge arr_len to fill_from_dev_buffer(), but arr is only 32 bytes. This
leads to OOB in sg_copy_buffer().

To solve this issue, define alloc_len as u32.

Link: https://lore.kernel.org/r/20211013033913.2551004-2-yebin10@huawei.com
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_debug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index b6540b92f5661..63504dc63d878 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1855,7 +1855,7 @@ static int resp_readcap16(struct scsi_cmnd *scp,
 {
 	unsigned char *cmd = scp->cmnd;
 	unsigned char arr[SDEBUG_READCAP16_ARR_SZ];
-	int alloc_len;
+	u32 alloc_len;
 
 	alloc_len = get_unaligned_be32(cmd + 10);
 	/* following just in case virtual_gb changed */
@@ -1884,7 +1884,7 @@ static int resp_readcap16(struct scsi_cmnd *scp,
 	}
 
 	return fill_from_dev_buffer(scp, arr,
-			    min_t(int, alloc_len, SDEBUG_READCAP16_ARR_SZ));
+			    min_t(u32, alloc_len, SDEBUG_READCAP16_ARR_SZ));
 }
 
 #define SDEBUG_MAX_TGTPGS_ARR_SZ 1412
-- 
GitLab


From 8440377e1a5644779b4c8d013aa2a917f5fc83c3 Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Wed, 13 Oct 2021 11:39:13 +0800
Subject: [PATCH 1571/4878] scsi: scsi_debug: Fix out-of-bound read in
 resp_report_tgtpgs()

[ Upstream commit f347c26836c270199de1599c3cd466bb7747caa9 ]

The following issue was observed running syzkaller:

BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:377 [inline]
BUG: KASAN: slab-out-of-bounds in sg_copy_buffer+0x150/0x1c0 lib/scatterlist.c:831
Read of size 2132 at addr ffff8880aea95dc8 by task syz-executor.0/9815

CPU: 0 PID: 9815 Comm: syz-executor.0 Not tainted 4.19.202-00874-gfc0fe04215a9 #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xe4/0x14a lib/dump_stack.c:118
 print_address_description+0x73/0x280 mm/kasan/report.c:253
 kasan_report_error mm/kasan/report.c:352 [inline]
 kasan_report+0x272/0x370 mm/kasan/report.c:410
 memcpy+0x1f/0x50 mm/kasan/kasan.c:302
 memcpy include/linux/string.h:377 [inline]
 sg_copy_buffer+0x150/0x1c0 lib/scatterlist.c:831
 fill_from_dev_buffer+0x14f/0x340 drivers/scsi/scsi_debug.c:1021
 resp_report_tgtpgs+0x5aa/0x770 drivers/scsi/scsi_debug.c:1772
 schedule_resp+0x464/0x12f0 drivers/scsi/scsi_debug.c:4429
 scsi_debug_queuecommand+0x467/0x1390 drivers/scsi/scsi_debug.c:5835
 scsi_dispatch_cmd+0x3fc/0x9b0 drivers/scsi/scsi_lib.c:1896
 scsi_request_fn+0x1042/0x1810 drivers/scsi/scsi_lib.c:2034
 __blk_run_queue_uncond block/blk-core.c:464 [inline]
 __blk_run_queue+0x1a4/0x380 block/blk-core.c:484
 blk_execute_rq_nowait+0x1c2/0x2d0 block/blk-exec.c:78
 sg_common_write.isra.19+0xd74/0x1dc0 drivers/scsi/sg.c:847
 sg_write.part.23+0x6e0/0xd00 drivers/scsi/sg.c:716
 sg_write+0x64/0xa0 drivers/scsi/sg.c:622
 __vfs_write+0xed/0x690 fs/read_write.c:485
kill_bdev:block_device:00000000e138492c
 vfs_write+0x184/0x4c0 fs/read_write.c:549
 ksys_write+0x107/0x240 fs/read_write.c:599
 do_syscall_64+0xc2/0x560 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

We get 'alen' from command its type is int. If userspace passes a large
length we will get a negative 'alen'.

Switch n, alen, and rlen to u32.

Link: https://lore.kernel.org/r/20211013033913.2551004-3-yebin10@huawei.com
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_debug.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 63504dc63d878..3fc7c2a31c191 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1895,8 +1895,9 @@ static int resp_report_tgtpgs(struct scsi_cmnd *scp,
 	unsigned char *cmd = scp->cmnd;
 	unsigned char *arr;
 	int host_no = devip->sdbg_host->shost->host_no;
-	int n, ret, alen, rlen;
 	int port_group_a, port_group_b, port_a, port_b;
+	u32 alen, n, rlen;
+	int ret;
 
 	alen = get_unaligned_be32(cmd + 6);
 	arr = kzalloc(SDEBUG_MAX_TGTPGS_ARR_SZ, GFP_ATOMIC);
@@ -1958,9 +1959,9 @@ static int resp_report_tgtpgs(struct scsi_cmnd *scp,
 	 * - The constructed command length
 	 * - The maximum array size
 	 */
-	rlen = min_t(int, alen, n);
+	rlen = min(alen, n);
 	ret = fill_from_dev_buffer(scp, arr,
-			   min_t(int, rlen, SDEBUG_MAX_TGTPGS_ARR_SZ));
+			   min_t(u32, rlen, SDEBUG_MAX_TGTPGS_ARR_SZ));
 	kfree(arr);
 	return ret;
 }
-- 
GitLab


From 8176441373ddd7a45c0c92df80d73989d6e3aeb3 Mon Sep 17 00:00:00 2001
From: Mike Christie <michael.christie@oracle.com>
Date: Wed, 29 Sep 2021 21:04:19 -0500
Subject: [PATCH 1572/4878] scsi: target: Fix ordered tag handling

[ Upstream commit ed1227e080990ffec5bf39006ec8a57358e6689a ]

This patch fixes the following bugs:

1. If there are multiple ordered cmds queued and multiple simple cmds
   completing, target_restart_delayed_cmds() could be called on different
   CPUs and each instance could start a ordered cmd. They could then run in
   different orders than they were queued.

2. target_restart_delayed_cmds() and target_handle_task_attr() can race
   where:

   1. target_handle_task_attr() has passed the simple_cmds == 0 check.

   2. transport_complete_task_attr() then decrements simple_cmds to 0.

   3. transport_complete_task_attr() runs target_restart_delayed_cmds() and
      it does not see any cmds on the delayed_cmd_list.

   4. target_handle_task_attr() adds the cmd to the delayed_cmd_list.

   The cmd will then end up timing out.

3. If we are sent > 1 ordered cmds and simple_cmds == 0, we can execute
   them out of order, because target_handle_task_attr() will hit that
   simple_cmds check first and return false for all ordered cmds sent.

4. We run target_restart_delayed_cmds() after every cmd completion, so if
   there is more than 1 simple cmd running, we start executing ordered cmds
   after that first cmd instead of waiting for all of them to complete.

5. Ordered cmds are not supposed to start until HEAD OF QUEUE and all older
   cmds have completed, and not just simple.

6. It's not a bug but it doesn't make sense to take the delayed_cmd_lock
   for every cmd completion when ordered cmds are almost never used. Just
   replacing that lock with an atomic increases IOPs by up to 10% when
   completions are spread over multiple CPUs and there are multiple
   sessions/ mqs/thread accessing the same device.

This patch moves the queued delayed handling to a per device work to
serialze the cmd executions for each device and adds a new counter to track
HEAD_OF_QUEUE and SIMPLE cmds. We can then check the new counter to
determine when to run the work on the completion path.

Link: https://lore.kernel.org/r/20210930020422.92578-3-michael.christie@oracle.com
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/target_core_device.c    |  2 +
 drivers/target/target_core_internal.h  |  1 +
 drivers/target/target_core_transport.c | 76 ++++++++++++++++++--------
 include/target/target_core_base.h      |  6 +-
 4 files changed, 61 insertions(+), 24 deletions(-)

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 405d82d447176..109f019d21480 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -758,6 +758,8 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	INIT_LIST_HEAD(&dev->t10_alua.lba_map_list);
 	spin_lock_init(&dev->t10_alua.lba_map_lock);
 
+	INIT_WORK(&dev->delayed_cmd_work, target_do_delayed_work);
+
 	dev->t10_wwn.t10_dev = dev;
 	dev->t10_alua.t10_dev = dev;
 
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index e7b3c6e5d5744..e4f072a680d41 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -150,6 +150,7 @@ int	transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
 void	transport_clear_lun_ref(struct se_lun *);
 sense_reason_t	target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
 void	target_qf_do_work(struct work_struct *work);
+void	target_do_delayed_work(struct work_struct *work);
 bool	target_check_wce(struct se_device *dev);
 bool	target_check_fua(struct se_device *dev);
 void	__target_execute_cmd(struct se_cmd *, bool);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 61b79804d462c..bca3a32a4bfb7 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2065,32 +2065,35 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
 	 */
 	switch (cmd->sam_task_attr) {
 	case TCM_HEAD_TAG:
+		atomic_inc_mb(&dev->non_ordered);
 		pr_debug("Added HEAD_OF_QUEUE for CDB: 0x%02x\n",
 			 cmd->t_task_cdb[0]);
 		return false;
 	case TCM_ORDERED_TAG:
-		atomic_inc_mb(&dev->dev_ordered_sync);
+		atomic_inc_mb(&dev->delayed_cmd_count);
 
 		pr_debug("Added ORDERED for CDB: 0x%02x to ordered list\n",
 			 cmd->t_task_cdb[0]);
-
-		/*
-		 * Execute an ORDERED command if no other older commands
-		 * exist that need to be completed first.
-		 */
-		if (!atomic_read(&dev->simple_cmds))
-			return false;
 		break;
 	default:
 		/*
 		 * For SIMPLE and UNTAGGED Task Attribute commands
 		 */
-		atomic_inc_mb(&dev->simple_cmds);
+		atomic_inc_mb(&dev->non_ordered);
+
+		if (atomic_read(&dev->delayed_cmd_count) == 0)
+			return false;
 		break;
 	}
 
-	if (atomic_read(&dev->dev_ordered_sync) == 0)
-		return false;
+	if (cmd->sam_task_attr != TCM_ORDERED_TAG) {
+		atomic_inc_mb(&dev->delayed_cmd_count);
+		/*
+		 * We will account for this when we dequeue from the delayed
+		 * list.
+		 */
+		atomic_dec_mb(&dev->non_ordered);
+	}
 
 	spin_lock(&dev->delayed_cmd_lock);
 	list_add_tail(&cmd->se_delayed_node, &dev->delayed_cmd_list);
@@ -2098,6 +2101,12 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
 
 	pr_debug("Added CDB: 0x%02x Task Attr: 0x%02x to delayed CMD listn",
 		cmd->t_task_cdb[0], cmd->sam_task_attr);
+	/*
+	 * We may have no non ordered cmds when this function started or we
+	 * could have raced with the last simple/head cmd completing, so kick
+	 * the delayed handler here.
+	 */
+	schedule_work(&dev->delayed_cmd_work);
 	return true;
 }
 
@@ -2135,29 +2144,48 @@ EXPORT_SYMBOL(target_execute_cmd);
  * Process all commands up to the last received ORDERED task attribute which
  * requires another blocking boundary
  */
-static void target_restart_delayed_cmds(struct se_device *dev)
+void target_do_delayed_work(struct work_struct *work)
 {
-	for (;;) {
+	struct se_device *dev = container_of(work, struct se_device,
+					     delayed_cmd_work);
+
+	spin_lock(&dev->delayed_cmd_lock);
+	while (!dev->ordered_sync_in_progress) {
 		struct se_cmd *cmd;
 
-		spin_lock(&dev->delayed_cmd_lock);
-		if (list_empty(&dev->delayed_cmd_list)) {
-			spin_unlock(&dev->delayed_cmd_lock);
+		if (list_empty(&dev->delayed_cmd_list))
 			break;
-		}
 
 		cmd = list_entry(dev->delayed_cmd_list.next,
 				 struct se_cmd, se_delayed_node);
+
+		if (cmd->sam_task_attr == TCM_ORDERED_TAG) {
+			/*
+			 * Check if we started with:
+			 * [ordered] [simple] [ordered]
+			 * and we are now at the last ordered so we have to wait
+			 * for the simple cmd.
+			 */
+			if (atomic_read(&dev->non_ordered) > 0)
+				break;
+
+			dev->ordered_sync_in_progress = true;
+		}
+
 		list_del(&cmd->se_delayed_node);
+		atomic_dec_mb(&dev->delayed_cmd_count);
 		spin_unlock(&dev->delayed_cmd_lock);
 
+		if (cmd->sam_task_attr != TCM_ORDERED_TAG)
+			atomic_inc_mb(&dev->non_ordered);
+
 		cmd->transport_state |= CMD_T_SENT;
 
 		__target_execute_cmd(cmd, true);
 
-		if (cmd->sam_task_attr == TCM_ORDERED_TAG)
-			break;
+		spin_lock(&dev->delayed_cmd_lock);
 	}
+	spin_unlock(&dev->delayed_cmd_lock);
 }
 
 /*
@@ -2175,14 +2203,17 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
 		goto restart;
 
 	if (cmd->sam_task_attr == TCM_SIMPLE_TAG) {
-		atomic_dec_mb(&dev->simple_cmds);
+		atomic_dec_mb(&dev->non_ordered);
 		dev->dev_cur_ordered_id++;
 	} else if (cmd->sam_task_attr == TCM_HEAD_TAG) {
+		atomic_dec_mb(&dev->non_ordered);
 		dev->dev_cur_ordered_id++;
 		pr_debug("Incremented dev_cur_ordered_id: %u for HEAD_OF_QUEUE\n",
 			 dev->dev_cur_ordered_id);
 	} else if (cmd->sam_task_attr == TCM_ORDERED_TAG) {
-		atomic_dec_mb(&dev->dev_ordered_sync);
+		spin_lock(&dev->delayed_cmd_lock);
+		dev->ordered_sync_in_progress = false;
+		spin_unlock(&dev->delayed_cmd_lock);
 
 		dev->dev_cur_ordered_id++;
 		pr_debug("Incremented dev_cur_ordered_id: %u for ORDERED\n",
@@ -2191,7 +2222,8 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
 	cmd->se_cmd_flags &= ~SCF_TASK_ATTR_SET;
 
 restart:
-	target_restart_delayed_cmds(dev);
+	if (atomic_read(&dev->delayed_cmd_count) > 0)
+		schedule_work(&dev->delayed_cmd_work);
 }
 
 static void transport_complete_qf(struct se_cmd *cmd)
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 549947d407cfd..18a5dcd275f88 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -788,8 +788,9 @@ struct se_device {
 	atomic_long_t		read_bytes;
 	atomic_long_t		write_bytes;
 	/* Active commands on this virtual SE device */
-	atomic_t		simple_cmds;
-	atomic_t		dev_ordered_sync;
+	atomic_t		non_ordered;
+	bool			ordered_sync_in_progress;
+	atomic_t		delayed_cmd_count;
 	atomic_t		dev_qf_count;
 	u32			export_count;
 	spinlock_t		delayed_cmd_lock;
@@ -811,6 +812,7 @@ struct se_device {
 	struct list_head	dev_sep_list;
 	struct list_head	dev_tmr_list;
 	struct work_struct	qf_work_queue;
+	struct work_struct	delayed_cmd_work;
 	struct list_head	delayed_cmd_list;
 	struct list_head	state_list;
 	struct list_head	qf_cmd_list;
-- 
GitLab


From e0fef1c8cd61289489615a69575f829eb61b511b Mon Sep 17 00:00:00 2001
From: Mike Christie <michael.christie@oracle.com>
Date: Wed, 29 Sep 2021 21:04:20 -0500
Subject: [PATCH 1573/4878] scsi: target: Fix alua_tg_pt_gps_count tracking

[ Upstream commit 1283c0d1a32bb924324481586b5d6e8e76f676ba ]

We can't free the tg_pt_gp in core_alua_set_tg_pt_gp_id() because it's
still accessed via configfs. Its release must go through the normal
configfs/refcount process.

The max alua_tg_pt_gps_count check should probably have been done in
core_alua_allocate_tg_pt_gp(), but with the current code userspace could
have created 0x0000ffff + 1 groups, but only set the id for 0x0000ffff.
Then it could have deleted a group with an ID set, and then set the ID for
that extra group and it would work ok.

It's unlikely, but just in case this patch continues to allow that type of
behavior, and just fixes the kfree() while in use bug.

Link: https://lore.kernel.org/r/20210930020422.92578-4-michael.christie@oracle.com
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/target_core_alua.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 6b72afee2f8b7..b240bd1ccb71d 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -1702,7 +1702,6 @@ int core_alua_set_tg_pt_gp_id(
 		pr_err("Maximum ALUA alua_tg_pt_gps_count:"
 			" 0x0000ffff reached\n");
 		spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
-		kmem_cache_free(t10_alua_tg_pt_gp_cache, tg_pt_gp);
 		return -ENOSPC;
 	}
 again:
-- 
GitLab


From 833ad27927330ff9b103c72768b05f81b8c3045c Mon Sep 17 00:00:00 2001
From: Teng Qi <starmiku1207184332@gmail.com>
Date: Mon, 11 Oct 2021 19:40:03 +0800
Subject: [PATCH 1574/4878] iio: imu: st_lsm6dsx: Avoid potential array
 overflow in st_lsm6dsx_set_odr()

[ Upstream commit 94be878c882d8d784ff44c639bf55f3b029f85af ]

The length of hw->settings->odr_table is 2 and ref_sensor->id is an enum
variable whose value is between 0 and 5.
However, the value ST_LSM6DSX_ID_MAX (i.e. 5) is not caught properly in
 switch (sensor->id) {

If ref_sensor->id is ST_LSM6DSX_ID_MAX, an array overflow will ocurrs in
function st_lsm6dsx_check_odr():
  odr_table = &sensor->hw->settings->odr_table[sensor->id];

and in function st_lsm6dsx_set_odr():
  reg = &hw->settings->odr_table[ref_sensor->id].reg;

To avoid this array overflow, handle ST_LSM6DSX_ID_GYRO explicitly and
return -EINVAL for the default case.

The enum value ST_LSM6DSX_ID_MAX is only present as an easy way to check
the limit and as such is never used, however this is not locally obvious.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Teng Qi <starmiku1207184332@gmail.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20211011114003.976221-1-starmiku1207184332@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 2ab1ac5a2412f..558ca3843bb95 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -1465,6 +1465,8 @@ st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u32 req_odr)
 	int err;
 
 	switch (sensor->id) {
+	case ST_LSM6DSX_ID_GYRO:
+		break;
 	case ST_LSM6DSX_ID_EXT0:
 	case ST_LSM6DSX_ID_EXT1:
 	case ST_LSM6DSX_ID_EXT2:
@@ -1490,8 +1492,8 @@ st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u32 req_odr)
 		}
 		break;
 	}
-	default:
-		break;
+	default: /* should never occur */
+		return -EINVAL;
 	}
 
 	if (req_odr > 0) {
-- 
GitLab


From 8c4d9764e74dba211755bba8f351b434ca187add Mon Sep 17 00:00:00 2001
From: Anatolij Gustschin <agust@denx.de>
Date: Thu, 14 Oct 2021 00:05:31 +0200
Subject: [PATCH 1575/4878] powerpc/5200: dts: fix memory node unit name

[ Upstream commit aed2886a5e9ffc8269a4220bff1e9e030d3d2eb1 ]

Fixes build warnings:
Warning (unit_address_vs_reg): /memory: node has a reg or ranges property, but no unit name

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211013220532.24759-4-agust@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/boot/dts/charon.dts    | 2 +-
 arch/powerpc/boot/dts/digsy_mtc.dts | 2 +-
 arch/powerpc/boot/dts/lite5200.dts  | 2 +-
 arch/powerpc/boot/dts/lite5200b.dts | 2 +-
 arch/powerpc/boot/dts/media5200.dts | 2 +-
 arch/powerpc/boot/dts/mpc5200b.dtsi | 2 +-
 arch/powerpc/boot/dts/o2d.dts       | 2 +-
 arch/powerpc/boot/dts/o2d.dtsi      | 2 +-
 arch/powerpc/boot/dts/o2dnt2.dts    | 2 +-
 arch/powerpc/boot/dts/o3dnt.dts     | 2 +-
 arch/powerpc/boot/dts/pcm032.dts    | 2 +-
 arch/powerpc/boot/dts/tqm5200.dts   | 2 +-
 12 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/powerpc/boot/dts/charon.dts b/arch/powerpc/boot/dts/charon.dts
index 408b486b13dff..cd589539f313f 100644
--- a/arch/powerpc/boot/dts/charon.dts
+++ b/arch/powerpc/boot/dts/charon.dts
@@ -35,7 +35,7 @@
 		};
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>;	// 128MB
 	};
diff --git a/arch/powerpc/boot/dts/digsy_mtc.dts b/arch/powerpc/boot/dts/digsy_mtc.dts
index 0e5e9d3acf79f..19a14e62e65f4 100644
--- a/arch/powerpc/boot/dts/digsy_mtc.dts
+++ b/arch/powerpc/boot/dts/digsy_mtc.dts
@@ -16,7 +16,7 @@
 	model = "intercontrol,digsy-mtc";
 	compatible = "intercontrol,digsy-mtc";
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x02000000>;	// 32MB
 	};
 
diff --git a/arch/powerpc/boot/dts/lite5200.dts b/arch/powerpc/boot/dts/lite5200.dts
index cb2782dd6132c..e7b194775d783 100644
--- a/arch/powerpc/boot/dts/lite5200.dts
+++ b/arch/powerpc/boot/dts/lite5200.dts
@@ -32,7 +32,7 @@
 		};
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x04000000>;	// 64MB
 	};
diff --git a/arch/powerpc/boot/dts/lite5200b.dts b/arch/powerpc/boot/dts/lite5200b.dts
index 2b86c81f90485..547cbe726ff23 100644
--- a/arch/powerpc/boot/dts/lite5200b.dts
+++ b/arch/powerpc/boot/dts/lite5200b.dts
@@ -31,7 +31,7 @@
 		led4 { gpios = <&gpio_simple 2 1>; };
 	};
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x10000000>;	// 256MB
 	};
 
diff --git a/arch/powerpc/boot/dts/media5200.dts b/arch/powerpc/boot/dts/media5200.dts
index 61cae9dcddef4..f3188018faceb 100644
--- a/arch/powerpc/boot/dts/media5200.dts
+++ b/arch/powerpc/boot/dts/media5200.dts
@@ -32,7 +32,7 @@
 		};
 	};
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x08000000>;	// 128MB RAM
 	};
 
diff --git a/arch/powerpc/boot/dts/mpc5200b.dtsi b/arch/powerpc/boot/dts/mpc5200b.dtsi
index 648fe31795f49..8b796f3b11da7 100644
--- a/arch/powerpc/boot/dts/mpc5200b.dtsi
+++ b/arch/powerpc/boot/dts/mpc5200b.dtsi
@@ -33,7 +33,7 @@
 		};
 	};
 
-	memory: memory {
+	memory: memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x04000000>;	// 64MB
 	};
diff --git a/arch/powerpc/boot/dts/o2d.dts b/arch/powerpc/boot/dts/o2d.dts
index 24a46f65e5299..e0a8d3034417f 100644
--- a/arch/powerpc/boot/dts/o2d.dts
+++ b/arch/powerpc/boot/dts/o2d.dts
@@ -12,7 +12,7 @@
 	model = "ifm,o2d";
 	compatible = "ifm,o2d";
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x08000000>;  // 128MB
 	};
 
diff --git a/arch/powerpc/boot/dts/o2d.dtsi b/arch/powerpc/boot/dts/o2d.dtsi
index 6661955a2be47..b55a9e5bd828c 100644
--- a/arch/powerpc/boot/dts/o2d.dtsi
+++ b/arch/powerpc/boot/dts/o2d.dtsi
@@ -19,7 +19,7 @@
 	model = "ifm,o2d";
 	compatible = "ifm,o2d";
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x04000000>;	// 64MB
 	};
 
diff --git a/arch/powerpc/boot/dts/o2dnt2.dts b/arch/powerpc/boot/dts/o2dnt2.dts
index eeba7f5507d5d..c2eedbd1f5fcb 100644
--- a/arch/powerpc/boot/dts/o2dnt2.dts
+++ b/arch/powerpc/boot/dts/o2dnt2.dts
@@ -12,7 +12,7 @@
 	model = "ifm,o2dnt2";
 	compatible = "ifm,o2d";
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x08000000>;  // 128MB
 	};
 
diff --git a/arch/powerpc/boot/dts/o3dnt.dts b/arch/powerpc/boot/dts/o3dnt.dts
index fd00396b0593e..e4c1bdd412716 100644
--- a/arch/powerpc/boot/dts/o3dnt.dts
+++ b/arch/powerpc/boot/dts/o3dnt.dts
@@ -12,7 +12,7 @@
 	model = "ifm,o3dnt";
 	compatible = "ifm,o2d";
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x04000000>;  // 64MB
 	};
 
diff --git a/arch/powerpc/boot/dts/pcm032.dts b/arch/powerpc/boot/dts/pcm032.dts
index 780e13d99e7b8..1895bc95900cc 100644
--- a/arch/powerpc/boot/dts/pcm032.dts
+++ b/arch/powerpc/boot/dts/pcm032.dts
@@ -20,7 +20,7 @@
 	model = "phytec,pcm032";
 	compatible = "phytec,pcm032";
 
-	memory {
+	memory@0 {
 		reg = <0x00000000 0x08000000>;	// 128MB
 	};
 
diff --git a/arch/powerpc/boot/dts/tqm5200.dts b/arch/powerpc/boot/dts/tqm5200.dts
index 9ed0bc78967e1..5bb25a9e40a01 100644
--- a/arch/powerpc/boot/dts/tqm5200.dts
+++ b/arch/powerpc/boot/dts/tqm5200.dts
@@ -32,7 +32,7 @@
 		};
 	};
 
-	memory {
+	memory@0 {
 		device_type = "memory";
 		reg = <0x00000000 0x04000000>;	// 64MB
 	};
-- 
GitLab


From 850416beadef5ac7ab0881ba7fe9e723650fb7e3 Mon Sep 17 00:00:00 2001
From: David Heidelberg <david@ixit.cz>
Date: Wed, 20 Oct 2021 23:47:41 +0200
Subject: [PATCH 1576/4878] ARM: dts: qcom: fix memory and mdio nodes naming
 for RB3011

[ Upstream commit 14a1f6c9d8017ffbf388e82e1a1f023196d98612 ]

Fixes warnings regarding to memory and mdio nodes and
apply new naming following dt-schema.

Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211020214741.261509-1-david@ixit.cz
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/qcom-ipq8064-rb3011.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/qcom-ipq8064-rb3011.dts b/arch/arm/boot/dts/qcom-ipq8064-rb3011.dts
index 282b89ce3d451..33545cf40f3ab 100644
--- a/arch/arm/boot/dts/qcom-ipq8064-rb3011.dts
+++ b/arch/arm/boot/dts/qcom-ipq8064-rb3011.dts
@@ -19,12 +19,12 @@
 		stdout-path = "serial0:115200n8";
 	};
 
-	memory@0 {
+	memory@42000000 {
 		reg = <0x42000000 0x3e000000>;
 		device_type = "memory";
 	};
 
-	mdio0: mdio@0 {
+	mdio0: mdio-0 {
 		status = "okay";
 		compatible = "virtual,mdio-gpio";
 		gpios = <&qcom_pinmux 1 GPIO_ACTIVE_HIGH>,
@@ -91,7 +91,7 @@
 		};
 	};
 
-	mdio1: mdio@1 {
+	mdio1: mdio-1 {
 		status = "okay";
 		compatible = "virtual,mdio-gpio";
 		gpios = <&qcom_pinmux 11 GPIO_ACTIVE_HIGH>,
-- 
GitLab


From 1ac6cd87d8ddd36c43620f82c4d65b058f725f0f Mon Sep 17 00:00:00 2001
From: Chengfeng Ye <cyeaa@connect.ust.hk>
Date: Sun, 24 Oct 2021 03:46:11 -0700
Subject: [PATCH 1577/4878] ALSA: gus: fix null pointer dereference on pointer
 block

[ Upstream commit a0d21bb3279476c777434c40d969ea88ca64f9aa ]

The pointer block return from snd_gf1_dma_next_block could be
null, so there is a potential null pointer dereference issue.
Fix this by adding a null check before dereference.

Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Link: https://lore.kernel.org/r/20211024104611.9919-1-cyeaa@connect.ust.hk
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/isa/gus/gus_dma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/isa/gus/gus_dma.c b/sound/isa/gus/gus_dma.c
index a1c770d826dda..6d664dd8dde0b 100644
--- a/sound/isa/gus/gus_dma.c
+++ b/sound/isa/gus/gus_dma.c
@@ -126,6 +126,8 @@ static void snd_gf1_dma_interrupt(struct snd_gus_card * gus)
 	}
 	block = snd_gf1_dma_next_block(gus);
 	spin_unlock(&gus->dma_lock);
+	if (!block)
+		return;
 	snd_gf1_dma_program(gus, block->addr, block->buf_addr, block->count, (unsigned short) block->cmd);
 	kfree(block);
 #if 0
-- 
GitLab


From bc4bc07fb44c7b3aefd9fc710e10f86649e79a1c Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Thu, 14 Oct 2021 13:44:24 +1100
Subject: [PATCH 1578/4878] powerpc/dcr: Use cmplwi instead of 3-argument cmpli
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit fef071be57dc43679a32d5b0e6ee176d6f12e9f2 ]

In dcr-low.S we use cmpli with three arguments, instead of four
arguments as defined in the ISA:

	cmpli	cr0,r3,1024

This appears to be a PPC440-ism, looking at the "PPC440x5 CPU Core
User’s Manual" it shows cmpli having no L field, but implied to be 0 due
to the core being 32-bit. It mentions that the ISA defines four
arguments and recommends using cmplwi.

It also corresponds to the old POWER instruction set, which had no L
field there, a reserved bit instead.

dcr-low.S is only built 32-bit, because it is only built when
DCR_NATIVE=y, which is only selected by 40x and 44x. Looking at the
generated code (with gcc/gas) we see cmplwi as expected.

Although gas is happy with the 3-argument version when building for
32-bit, the LLVM assembler is not and errors out with:

  arch/powerpc/sysdev/dcr-low.S:27:10: error: invalid operand for instruction
   cmpli 0,%r3,1024; ...
           ^

Switch to the cmplwi extended opcode, which avoids any confusion when
reading the ISA, fixes the issue with the LLVM assembler, and also means
the code could be built 64-bit in future (though that's very unlikely).

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
BugLink: https://github.com/ClangBuiltLinux/linux/issues/1419
Link: https://lore.kernel.org/r/20211014024424.528848-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/sysdev/dcr-low.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/dcr-low.S b/arch/powerpc/sysdev/dcr-low.S
index efeeb1b885a17..329b9c4ae5429 100644
--- a/arch/powerpc/sysdev/dcr-low.S
+++ b/arch/powerpc/sysdev/dcr-low.S
@@ -11,7 +11,7 @@
 #include <asm/export.h>
 
 #define DCR_ACCESS_PROLOG(table) \
-	cmpli	cr0,r3,1024;	 \
+	cmplwi	cr0,r3,1024;	 \
 	rlwinm  r3,r3,4,18,27;   \
 	lis     r5,table@h;      \
 	ori     r5,r5,table@l;   \
-- 
GitLab


From 29b742690a0929fb9543d3c1445c5a91f14417e5 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Fri, 29 Oct 2021 17:10:45 +0200
Subject: [PATCH 1579/4878] powerpc/8xx: Fix Oops with STRICT_KERNEL_RWX
 without DEBUG_RODATA_TEST

[ Upstream commit c12ab8dbc492b992e1ea717db933cee568780c47 ]

Until now, all tests involving CONFIG_STRICT_KERNEL_RWX were done with
DEBUG_RODATA_TEST to check the result. But now that
CONFIG_STRICT_KERNEL_RWX is selected by default, it came without
CONFIG_DEBUG_RODATA_TEST and led to the following Oops

[    6.830908] Freeing unused kernel image (initmem) memory: 352K
[    6.840077] BUG: Unable to handle kernel data access on write at 0xc1285200
[    6.846836] Faulting instruction address: 0xc0004b6c
[    6.851745] Oops: Kernel access of bad area, sig: 11 [#1]
[    6.857075] BE PAGE_SIZE=16K PREEMPT CMPC885
[    6.861348] SAF3000 DIE NOTIFICATION
[    6.864830] CPU: 0 PID: 1 Comm: swapper Not tainted 5.15.0-rc5-s3k-dev-02255-g2747d7b7916f #451
[    6.873429] NIP:  c0004b6c LR: c0004b60 CTR: 00000000
[    6.878419] REGS: c902be60 TRAP: 0300   Not tainted  (5.15.0-rc5-s3k-dev-02255-g2747d7b7916f)
[    6.886852] MSR:  00009032 <EE,ME,IR,DR,RI>  CR: 53000335  XER: 8000ff40
[    6.893564] DAR: c1285200 DSISR: 82000000
[    6.893564] GPR00: 0c000000 c902bf20 c20f4000 08000000 00000001 04001f00 c1800000 00000035
[    6.893564] GPR08: ff0001ff c1280000 00000002 c0004b60 00001000 00000000 c0004b1c 00000000
[    6.893564] GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    6.893564] GPR24: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c1060000
[    6.932034] NIP [c0004b6c] kernel_init+0x50/0x138
[    6.936682] LR [c0004b60] kernel_init+0x44/0x138
[    6.941245] Call Trace:
[    6.943653] [c902bf20] [c0004b60] kernel_init+0x44/0x138 (unreliable)
[    6.950022] [c902bf30] [c001122c] ret_from_kernel_thread+0x5c/0x64
[    6.956135] Instruction dump:
[    6.959060] 48ffc521 48045469 4800d8cd 3d20c086 89295fa0 2c090000 41820058 480796c9
[    6.966890] 4800e48d 3d20c128 39400002 3fe0c106 <91495200> 3bff8000 4806fa1d 481f7d75
[    6.974902] ---[ end trace 1e397bacba4aa610 ]---

0xc1285200 corresponds to 'system_state' global var that the kernel is trying to set to
SYSTEM_RUNNING. This var is above the RO/RW limit so it shouldn't Oops.

It oopses because the dirty bit is missing.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3d5800b0bbcd7b19761b98f50421358667b45331.1635520232.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/head_8xx.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index ce5fd93499a74..896a1f8d3e6ac 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -788,7 +788,7 @@ _GLOBAL(mmu_pin_tlb)
 	cmplw	r6, r9
 	bdnzt	lt, 2b
 
-4:	LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
+4:	LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
 2:	ori	r0, r6, MD_EVALID
 	mtspr	SPRN_MD_CTR, r5
 	mtspr	SPRN_MD_EPN, r0
-- 
GitLab


From 8748f08a2fc02aee89371bdb76fab2fe031a6a79 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Tue, 22 Dec 2020 12:54:01 -0800
Subject: [PATCH 1580/4878] sh: check return code of request_irq

[ Upstream commit 0e38225c92c7964482a8bb6b3e37fde4319e965c ]

request_irq is marked __must_check, but the call in shx3_prepare_cpus
has a void return type, so it can't propagate failure to the caller.
Follow cues from hexagon and just print an error.

Fixes: c7936b9abcf5 ("sh: smp: Hook in to the generic IPI handler for SH-X3 SMP.")
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sh/kernel/cpu/sh4a/smp-shx3.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/sh/kernel/cpu/sh4a/smp-shx3.c b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
index f8a2bec0f260b..1261dc7b84e8b 100644
--- a/arch/sh/kernel/cpu/sh4a/smp-shx3.c
+++ b/arch/sh/kernel/cpu/sh4a/smp-shx3.c
@@ -73,8 +73,9 @@ static void shx3_prepare_cpus(unsigned int max_cpus)
 	BUILD_BUG_ON(SMP_MSG_NR >= 8);
 
 	for (i = 0; i < SMP_MSG_NR; i++)
-		request_irq(104 + i, ipi_interrupt_handler,
-			    IRQF_PERCPU, "IPI", (void *)(long)i);
+		if (request_irq(104 + i, ipi_interrupt_handler,
+			    IRQF_PERCPU, "IPI", (void *)(long)i))
+			pr_err("Failed to request irq %d\n", i);
 
 	for (i = 0; i < max_cpus; i++)
 		set_cpu_present(i, true);
-- 
GitLab


From 5d5bf899e57a4dbf83cf3ed165f7e7ee15776331 Mon Sep 17 00:00:00 2001
From: Lu Wei <luwei32@huawei.com>
Date: Thu, 26 Nov 2020 10:43:11 +0800
Subject: [PATCH 1581/4878] maple: fix wrong return value of maple_bus_init().

[ Upstream commit bde82ee391fa6d3ad054313c4aa7b726d32515ce ]

If KMEM_CACHE or maple_alloc_dev failed, the maple_bus_init() will return 0
rather than error, because the retval is not changed after KMEM_CACHE or
maple_alloc_dev failed.

Fixes: 17be2d2b1c33 ("sh: Add maple bus support for the SEGA Dreamcast.")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Lu Wei <luwei32@huawei.com>
Acked-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/sh/maple/maple.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c
index e5d7fb81ad665..44a931d41a132 100644
--- a/drivers/sh/maple/maple.c
+++ b/drivers/sh/maple/maple.c
@@ -835,8 +835,10 @@ static int __init maple_bus_init(void)
 
 	maple_queue_cache = KMEM_CACHE(maple_buffer, SLAB_HWCACHE_ALIGN);
 
-	if (!maple_queue_cache)
+	if (!maple_queue_cache) {
+		retval = -ENOMEM;
 		goto cleanup_bothirqs;
+	}
 
 	INIT_LIST_HEAD(&maple_waitq);
 	INIT_LIST_HEAD(&maple_sentq);
@@ -849,6 +851,7 @@ static int __init maple_bus_init(void)
 		if (!mdev[i]) {
 			while (i-- > 0)
 				maple_free_dev(mdev[i]);
+			retval = -ENOMEM;
 			goto cleanup_cache;
 		}
 		baseunits[i] = mdev[i];
-- 
GitLab


From e8bd5e33057c02d377a76a42987c083afcb43579 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@linux.alibaba.com>
Date: Tue, 21 Sep 2021 22:37:30 +0800
Subject: [PATCH 1582/4878] f2fs: fix up f2fs_lookup tracepoints

[ Upstream commit 70a9ac36ffd807ac506ed0b849f3e8ce3c6623f2 ]

Fix up a misuse that the filename pointer isn't always valid in
the ring buffer, and we should copy the content instead.

Fixes: 0c5e36db17f5 ("f2fs: trace f2fs_lookup")
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/trace/events/f2fs.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 56b113e3cd6aa..df293bc7f03b8 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -807,20 +807,20 @@ TRACE_EVENT(f2fs_lookup_start,
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(const char *,	name)
+		__string(name,	dentry->d_name.name)
 		__field(unsigned int, flags)
 	),
 
 	TP_fast_assign(
 		__entry->dev	= dir->i_sb->s_dev;
 		__entry->ino	= dir->i_ino;
-		__entry->name	= dentry->d_name.name;
+		__assign_str(name, dentry->d_name.name);
 		__entry->flags	= flags;
 	),
 
 	TP_printk("dev = (%d,%d), pino = %lu, name:%s, flags:%u",
 		show_dev_ino(__entry),
-		__entry->name,
+		__get_str(name),
 		__entry->flags)
 );
 
@@ -834,7 +834,7 @@ TRACE_EVENT(f2fs_lookup_end,
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(const char *,	name)
+		__string(name,	dentry->d_name.name)
 		__field(nid_t,	cino)
 		__field(int,	err)
 	),
@@ -842,14 +842,14 @@ TRACE_EVENT(f2fs_lookup_end,
 	TP_fast_assign(
 		__entry->dev	= dir->i_sb->s_dev;
 		__entry->ino	= dir->i_ino;
-		__entry->name	= dentry->d_name.name;
+		__assign_str(name, dentry->d_name.name);
 		__entry->cino	= ino;
 		__entry->err	= err;
 	),
 
 	TP_printk("dev = (%d,%d), pino = %lu, name:%s, ino:%u, err:%d",
 		show_dev_ino(__entry),
-		__entry->name,
+		__get_str(name),
 		__entry->cino,
 		__entry->err)
 );
-- 
GitLab


From 3d7c5d08a4839903230db7b559471eae4779734f Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Mon, 27 Sep 2021 15:06:48 +0900
Subject: [PATCH 1583/4878] f2fs: fix to use WHINT_MODE

[ Upstream commit 011e0868e0cf1237675b22e36fffa958fb08f46e ]

Since active_logs can be set to 2 or 4 or NR_CURSEG_PERSIST_TYPE(6),
it cannot be set to NR_CURSEG_TYPE(8).
That is, whint_mode is always off.

Therefore, the condition is changed from NR_CURSEG_TYPE to NR_CURSEG_PERSIST_TYPE.

Cc: Chao Yu <chao@kernel.org>
Fixes: d0b9e42ab615 (f2fs: introduce inmem curseg)
Reported-by: tanghuan <tanghuan@vivo.com>
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index de543168b3708..70b513e66af77 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1020,7 +1020,7 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
 	/* Not pass down write hints if the number of active logs is lesser
 	 * than NR_CURSEG_PERSIST_TYPE.
 	 */
-	if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
+	if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_PERSIST_TYPE)
 		F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
 	return 0;
 }
-- 
GitLab


From f44defd5694bab239e0dbcf99d488bef37f1a88f Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 4 Oct 2021 17:19:10 -0700
Subject: [PATCH 1584/4878] sh: fix kconfig unmet dependency warning for
 FRAME_POINTER

[ Upstream commit fda1bc533094a7db68b11e7503d2c6c73993d12a ]

FRAME_POINTER depends on DEBUG_KERNEL so DWARF_UNWINDER should
depend on DEBUG_KERNEL before selecting FRAME_POINTER.

WARNING: unmet direct dependencies detected for FRAME_POINTER
  Depends on [n]: DEBUG_KERNEL [=n] && (M68K || UML || SUPERH [=y]) || ARCH_WANT_FRAME_POINTERS [=n]
  Selected by [y]:
  - DWARF_UNWINDER [=y]

Fixes: bd353861c735 ("sh: dwarf unwinder support.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sh/Kconfig.debug | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 28a43d63bde1f..97b0e26cf05a1 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -57,6 +57,7 @@ config DUMP_CODE
 
 config DWARF_UNWINDER
 	bool "Enable the DWARF unwinder for stacktraces"
+	depends on DEBUG_KERNEL
 	select FRAME_POINTER
 	default n
 	help
-- 
GitLab


From 73383f670d8f762abb44852ff95b5150d6510527 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 4 Oct 2021 17:19:12 -0700
Subject: [PATCH 1585/4878] sh: math-emu: drop unused functions

[ Upstream commit e25c252a9b033523c626f039d4b9a304f12f6775 ]

Delete ieee_fpe_handler() since it is not used. After that is done,
delete denormal_to_double() since it is not used:

.../arch/sh/math-emu/math.c:505:12: error: 'ieee_fpe_handler' defined but not used [-Werror=unused-function]
  505 | static int ieee_fpe_handler(struct pt_regs *regs)

.../arch/sh/math-emu/math.c:477:13: error: 'denormal_to_double' defined but not used [-Werror=unused-function]
  477 | static void denormal_to_double(struct sh_fpu_soft_struct *fpu, int n)

Fixes: 7caf62de25554da3 ("sh: remove unused do_fpu_error")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sh/math-emu/math.c | 103 ----------------------------------------
 1 file changed, 103 deletions(-)

diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c
index e8be0eca0444a..615ba932c398e 100644
--- a/arch/sh/math-emu/math.c
+++ b/arch/sh/math-emu/math.c
@@ -467,109 +467,6 @@ static int fpu_emulate(u16 code, struct sh_fpu_soft_struct *fregs, struct pt_reg
 		return id_sys(fregs, regs, code);
 }
 
-/**
- *	denormal_to_double - Given denormalized float number,
- *	                     store double float
- *
- *	@fpu: Pointer to sh_fpu_soft structure
- *	@n: Index to FP register
- */
-static void denormal_to_double(struct sh_fpu_soft_struct *fpu, int n)
-{
-	unsigned long du, dl;
-	unsigned long x = fpu->fpul;
-	int exp = 1023 - 126;
-
-	if (x != 0 && (x & 0x7f800000) == 0) {
-		du = (x & 0x80000000);
-		while ((x & 0x00800000) == 0) {
-			x <<= 1;
-			exp--;
-		}
-		x &= 0x007fffff;
-		du |= (exp << 20) | (x >> 3);
-		dl = x << 29;
-
-		fpu->fp_regs[n] = du;
-		fpu->fp_regs[n+1] = dl;
-	}
-}
-
-/**
- *	ieee_fpe_handler - Handle denormalized number exception
- *
- *	@regs: Pointer to register structure
- *
- *	Returns 1 when it's handled (should not cause exception).
- */
-static int ieee_fpe_handler(struct pt_regs *regs)
-{
-	unsigned short insn = *(unsigned short *)regs->pc;
-	unsigned short finsn;
-	unsigned long nextpc;
-	int nib[4] = {
-		(insn >> 12) & 0xf,
-		(insn >> 8) & 0xf,
-		(insn >> 4) & 0xf,
-		insn & 0xf};
-
-	if (nib[0] == 0xb ||
-	    (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb)) /* bsr & jsr */
-		regs->pr = regs->pc + 4;
-
-	if (nib[0] == 0xa || nib[0] == 0xb) { /* bra & bsr */
-		nextpc = regs->pc + 4 + ((short) ((insn & 0xfff) << 4) >> 3);
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (nib[0] == 0x8 && nib[1] == 0xd) { /* bt/s */
-		if (regs->sr & 1)
-			nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1);
-		else
-			nextpc = regs->pc + 4;
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (nib[0] == 0x8 && nib[1] == 0xf) { /* bf/s */
-		if (regs->sr & 1)
-			nextpc = regs->pc + 4;
-		else
-			nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1);
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (nib[0] == 0x4 && nib[3] == 0xb &&
-		 (nib[2] == 0x0 || nib[2] == 0x2)) { /* jmp & jsr */
-		nextpc = regs->regs[nib[1]];
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (nib[0] == 0x0 && nib[3] == 0x3 &&
-		 (nib[2] == 0x0 || nib[2] == 0x2)) { /* braf & bsrf */
-		nextpc = regs->pc + 4 + regs->regs[nib[1]];
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else if (insn == 0x000b) { /* rts */
-		nextpc = regs->pr;
-		finsn = *(unsigned short *) (regs->pc + 2);
-	} else {
-		nextpc = regs->pc + 2;
-		finsn = insn;
-	}
-
-	if ((finsn & 0xf1ff) == 0xf0ad) { /* fcnvsd */
-		struct task_struct *tsk = current;
-
-		if ((tsk->thread.xstate->softfpu.fpscr & (1 << 17))) {
-			/* FPU error */
-			denormal_to_double (&tsk->thread.xstate->softfpu,
-					    (finsn >> 8) & 0xf);
-			tsk->thread.xstate->softfpu.fpscr &=
-				~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK);
-			task_thread_info(tsk)->status |= TS_USEDFPU;
-		} else {
-			force_sig_fault(SIGFPE, FPE_FLTINV,
-					(void __user *)regs->pc);
-		}
-
-		regs->pc = nextpc;
-		return 1;
-	}
-
-	return 0;
-}
-
 /**
  * fpu_init - Initialize FPU registers
  * @fpu: Pointer to software emulated FPU registers.
-- 
GitLab


From 4ce685cc9a0b1a3c253477a61fbee9aba72b736f Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 4 Oct 2021 17:19:13 -0700
Subject: [PATCH 1586/4878] sh: define __BIG_ENDIAN for math-emu

[ Upstream commit b929926f01f2d14635345d22eafcf60feed1085e ]

Fix this by defining both ENDIAN macros in
<asm/sfp-machine.h> so that they can be utilized in
<math-emu/soft-fp.h> according to the latter's comment:
/* Allow sfp-machine to have its own byte order definitions. */

(This is what is done in arch/nds32/include/asm/sfp-machine.h.)

This placates these build warnings:

In file included from ../arch/sh/math-emu/math.c:23:
.../include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined, evaluates to 0 [-Wundef]
   50 | #if __BYTE_ORDER == __BIG_ENDIAN
In file included from ../arch/sh/math-emu/math.c:24:
.../include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined, evaluates to 0 [-Wundef]
   59 | #if __BYTE_ORDER == __BIG_ENDIAN

Fixes: 4b565680d163 ("sh: math-emu support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sh/include/asm/sfp-machine.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/sh/include/asm/sfp-machine.h b/arch/sh/include/asm/sfp-machine.h
index cbc7cf8c97ce6..2d2423478b71d 100644
--- a/arch/sh/include/asm/sfp-machine.h
+++ b/arch/sh/include/asm/sfp-machine.h
@@ -13,6 +13,14 @@
 #ifndef _SFP_MACHINE_H
 #define _SFP_MACHINE_H
 
+#ifdef __BIG_ENDIAN__
+#define __BYTE_ORDER __BIG_ENDIAN
+#define __LITTLE_ENDIAN 0
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#define __BIG_ENDIAN 0
+#endif
+
 #define _FP_W_TYPE_SIZE		32
 #define _FP_W_TYPE		unsigned long
 #define _FP_WS_TYPE		signed long
-- 
GitLab


From 0a17fff6f045137d67294858590036007f1aa7d6 Mon Sep 17 00:00:00 2001
From: Hyeong-Jun Kim <hj514.kim@samsung.com>
Date: Wed, 27 Oct 2021 13:16:00 +0900
Subject: [PATCH 1587/4878] f2fs: compress: disallow disabling compress on
 non-empty compressed file

[ Upstream commit 02d58cd253d7536c412993573fc6b3b4454960eb ]

Compresse file and normal file has differ in i_addr addressing,
specifically addrs per inode/block. So, we will face data loss, if we
disable the compression flag on non-empty files. Therefore we should
disallow not only enabling but disabling the compression flag on
non-empty files.

Fixes: 4c8ff7095bef ("f2fs: support data compression")
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/f2fs.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 2d7799bd30b10..bc488a7d01903 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3908,8 +3908,7 @@ static inline bool f2fs_disable_compressed_file(struct inode *inode)
 
 	if (!f2fs_compressed_file(inode))
 		return true;
-	if (S_ISREG(inode->i_mode) &&
-		(get_dirty_pages(inode) || atomic_read(&fi->i_compr_blocks)))
+	if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
 		return false;
 
 	fi->i_flags &= ~F2FS_COMPR_FL;
-- 
GitLab


From 7a5439474e69ddfe2921338ee1036bb730a56f26 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 28 Oct 2021 20:45:08 +0800
Subject: [PATCH 1588/4878] f2fs: fix incorrect return value in
 f2fs_sanity_check_ckpt()

[ Upstream commit ca98d72141dd81f42893a9a43d7ededab3355fba ]

As Pavel Machek reported in [1]

This code looks quite confused: part of function returns 1 on
corruption, part returns -errno. The problem is not stable-specific.

[1] https://lkml.org/lkml/2021/9/19/207

Let's fix to make 'insane cp_payload case' to return 1 rater than
EFSCORRUPTED, so that return value can be kept consistent for all
error cases, it can avoid confusion of code logic.

Fixes: 65ddf6564843 ("f2fs: fix to do sanity check for sb/cp fields correctly")
Reported-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 70b513e66af77..b7287b722e9e1 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3081,7 +3081,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
 		NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
 		f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
 			  cp_payload, nat_bits_blocks);
-		return -EFSCORRUPTED;
+		return 1;
 	}
 
 	if (unlikely(f2fs_cp_error(sbi))) {
-- 
GitLab


From 03bc8ea0ae957e5b7c3dc94816ed6a5caed52646 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Fri, 1 Oct 2021 18:20:33 +0100
Subject: [PATCH 1589/4878] clk: ingenic: Fix bugs with divided dividers

[ Upstream commit ed84ef1cd7eddf933d4ffce2caa8161d6f947245 ]

Two fixes in one:

- In the "impose hardware constraints" block, the "logical" divider
  value (aka. not translated to the hardware) was clamped to fit in the
  register area, but this totally ignored the fact that the divider
  value can itself have a fixed divider.

- The code that made sure that the divider value returned by the
  function was a multiple of its own fixed divider could result in a
  wrong value being calculated, because it was rounded down instead of
  rounded up.

Fixes: 4afe2d1a6ed5 ("clk: ingenic: Allow divider value to be divided")
Co-developed-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20211001172033.122329-1-paul@crapouillou.net
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/ingenic/cgu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c
index c8e9cb6c8e39c..2b9bb7d55efc8 100644
--- a/drivers/clk/ingenic/cgu.c
+++ b/drivers/clk/ingenic/cgu.c
@@ -425,15 +425,15 @@ ingenic_clk_calc_div(const struct ingenic_cgu_clk_info *clk_info,
 	}
 
 	/* Impose hardware constraints */
-	div = min_t(unsigned, div, 1 << clk_info->div.bits);
-	div = max_t(unsigned, div, 1);
+	div = clamp_t(unsigned int, div, clk_info->div.div,
+		      clk_info->div.div << clk_info->div.bits);
 
 	/*
 	 * If the divider value itself must be divided before being written to
 	 * the divider register, we must ensure we don't have any bits set that
 	 * would be lost as a result of doing so.
 	 */
-	div /= clk_info->div.div;
+	div = DIV_ROUND_UP(div, clk_info->div.div);
 	div *= clk_info->div.div;
 
 	return div;
-- 
GitLab


From 9b3d3b72be84027d33d5207f7296235bc8ac7fca Mon Sep 17 00:00:00 2001
From: Joel Stanley <joel@jms.id.au>
Date: Thu, 23 Sep 2021 09:24:49 +0930
Subject: [PATCH 1590/4878] clk/ast2600: Fix soc revision for AHB

[ Upstream commit f45c5b1c27293f834682e89003f88b3512329ab4 ]

Move the soc revision parsing to the initial probe, saving the driver
from parsing the register multiple times.

Use this variable to select the correct divisor table for the AHB clock.
Before this fix the A2 would have used the A0 table.

Fixes: 2d491066ccd4 ("clk: ast2600: Fix AHB clock divider for A1")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210922235449.213631-1-joel@jms.id.au
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/clk-ast2600.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/clk-ast2600.c b/drivers/clk/clk-ast2600.c
index bc3be5f3eae15..24dab2312bc6f 100644
--- a/drivers/clk/clk-ast2600.c
+++ b/drivers/clk/clk-ast2600.c
@@ -51,6 +51,8 @@ static DEFINE_SPINLOCK(aspeed_g6_clk_lock);
 static struct clk_hw_onecell_data *aspeed_g6_clk_data;
 
 static void __iomem *scu_g6_base;
+/* AST2600 revision: A0, A1, A2, etc */
+static u8 soc_rev;
 
 /*
  * Clocks marked with CLK_IS_CRITICAL:
@@ -191,9 +193,8 @@ static struct clk_hw *ast2600_calc_pll(const char *name, u32 val)
 static struct clk_hw *ast2600_calc_apll(const char *name, u32 val)
 {
 	unsigned int mult, div;
-	u32 chip_id = readl(scu_g6_base + ASPEED_G6_SILICON_REV);
 
-	if (((chip_id & CHIP_REVISION_ID) >> 16) >= 2) {
+	if (soc_rev >= 2) {
 		if (val & BIT(24)) {
 			/* Pass through mode */
 			mult = div = 1;
@@ -707,7 +708,7 @@ static const u32 ast2600_a1_axi_ahb200_tbl[] = {
 static void __init aspeed_g6_cc(struct regmap *map)
 {
 	struct clk_hw *hw;
-	u32 val, div, divbits, chip_id, axi_div, ahb_div;
+	u32 val, div, divbits, axi_div, ahb_div;
 
 	clk_hw_register_fixed_rate(NULL, "clkin", NULL, 0, 25000000);
 
@@ -738,8 +739,7 @@ static void __init aspeed_g6_cc(struct regmap *map)
 		axi_div = 2;
 
 	divbits = (val >> 11) & 0x3;
-	regmap_read(map, ASPEED_G6_SILICON_REV, &chip_id);
-	if (chip_id & BIT(16)) {
+	if (soc_rev >= 1) {
 		if (!divbits) {
 			ahb_div = ast2600_a1_axi_ahb200_tbl[(val >> 8) & 0x3];
 			if (val & BIT(16))
@@ -784,6 +784,8 @@ static void __init aspeed_g6_cc_init(struct device_node *np)
 	if (!scu_g6_base)
 		return;
 
+	soc_rev = (readl(scu_g6_base + ASPEED_G6_SILICON_REV) & CHIP_REVISION_ID) >> 16;
+
 	aspeed_g6_clk_data = kzalloc(struct_size(aspeed_g6_clk_data, hws,
 				      ASPEED_G6_NUM_CLKS), GFP_KERNEL);
 	if (!aspeed_g6_clk_data)
-- 
GitLab


From fbe27d0e1dcf72e533b697d11150248cff1f0c9e Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Thu, 4 Nov 2021 04:11:55 +0300
Subject: [PATCH 1591/4878] clk: qcom: gcc-msm8996: Drop (again)
 gcc_aggre1_pnoc_ahb_clk

[ Upstream commit 05cf3ec00d460b50088d421fb878a0f83f57e262 ]

The gcc_aggre1_pnoc_ahb_clk is crucial for the proper MSM8996/APQ8096
functioning. If it gets disabled, several subsytems will stop working
(including eMMC/SDCC and USB). There are no in-kernel users of this
clock, so it is much simpler to remove from the kernel.

The clock was first removed in the commit 9e60de1cf270 ("clk: qcom:
Remove gcc_aggre1_pnoc_ahb_clk from msm8996") by Stephen Boyd, but got
added back in the commit b567752144e3 ("clk: qcom: Add some missing gcc
clks for msm8996") by Rajendra Nayak.

Let's remove it again in hope that nobody adds it back.

Reported-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Fixes: b567752144e3 ("clk: qcom: Add some missing gcc clks for msm8996")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211104011155.2209654-1-dmitry.baryshkov@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/qcom/gcc-msm8996.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/clk/qcom/gcc-msm8996.c b/drivers/clk/qcom/gcc-msm8996.c
index 3c3a7ff045621..9b1674b28d45d 100644
--- a/drivers/clk/qcom/gcc-msm8996.c
+++ b/drivers/clk/qcom/gcc-msm8996.c
@@ -2937,20 +2937,6 @@ static struct clk_branch gcc_smmu_aggre0_ahb_clk = {
 	},
 };
 
-static struct clk_branch gcc_aggre1_pnoc_ahb_clk = {
-	.halt_reg = 0x82014,
-	.clkr = {
-		.enable_reg = 0x82014,
-		.enable_mask = BIT(0),
-		.hw.init = &(struct clk_init_data){
-			.name = "gcc_aggre1_pnoc_ahb_clk",
-			.parent_names = (const char *[]){ "periph_noc_clk_src" },
-			.num_parents = 1,
-			.ops = &clk_branch2_ops,
-		},
-	},
-};
-
 static struct clk_branch gcc_aggre2_ufs_axi_clk = {
 	.halt_reg = 0x83014,
 	.clkr = {
@@ -3474,7 +3460,6 @@ static struct clk_regmap *gcc_msm8996_clocks[] = {
 	[GCC_AGGRE0_CNOC_AHB_CLK] = &gcc_aggre0_cnoc_ahb_clk.clkr,
 	[GCC_SMMU_AGGRE0_AXI_CLK] = &gcc_smmu_aggre0_axi_clk.clkr,
 	[GCC_SMMU_AGGRE0_AHB_CLK] = &gcc_smmu_aggre0_ahb_clk.clkr,
-	[GCC_AGGRE1_PNOC_AHB_CLK] = &gcc_aggre1_pnoc_ahb_clk.clkr,
 	[GCC_AGGRE2_UFS_AXI_CLK] = &gcc_aggre2_ufs_axi_clk.clkr,
 	[GCC_AGGRE2_USB3_AXI_CLK] = &gcc_aggre2_usb3_axi_clk.clkr,
 	[GCC_QSPI_AHB_CLK] = &gcc_qspi_ahb_clk.clkr,
-- 
GitLab


From 91191d47af55658c386553ffa9ef3099701d150f Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sat, 6 Nov 2021 08:49:11 -0700
Subject: [PATCH 1592/4878] mips: BCM63XX: ensure that
 CPU_SUPPORTS_32BIT_KERNEL is set

[ Upstream commit 5eeaafc8d69373c095e461bdb39e5c9b62228ac5 ]

Several header files need info on CONFIG_32BIT or CONFIG_64BIT,
but kconfig symbol BCM63XX does not provide that info. This leads
to many build errors, e.g.:

   arch/mips/include/asm/page.h:196:13: error: use of undeclared identifier 'CAC_BASE'
           return x - PAGE_OFFSET + PHYS_OFFSET;
   arch/mips/include/asm/mach-generic/spaces.h:91:23: note: expanded from macro 'PAGE_OFFSET'
   #define PAGE_OFFSET             (CAC_BASE + PHYS_OFFSET)
   arch/mips/include/asm/io.h:134:28: error: use of undeclared identifier 'CAC_BASE'
           return (void *)(address + PAGE_OFFSET - PHYS_OFFSET);
   arch/mips/include/asm/mach-generic/spaces.h:91:23: note: expanded from macro 'PAGE_OFFSET'
   #define PAGE_OFFSET             (CAC_BASE + PHYS_OFFSET)

arch/mips/include/asm/uaccess.h:82:10: error: use of undeclared identifier '__UA_LIMIT'
           return (__UA_LIMIT & (addr | (addr + size) | __ua_size(size))) == 0;

Selecting the SYS_HAS_CPU_BMIPS* symbols causes SYS_HAS_CPU_BMIPS to be
set, which then selects CPU_SUPPORT_32BIT_KERNEL, which causes
CONFIG_32BIT to be set. (a bit more indirect than v1 [RFC].)

Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-mips@vger.kernel.org
Cc: Paul Burton <paulburton@kernel.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Ralf Baechle <ralf@linux-mips.org>
Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 5c6e9ed9b2a75..94a748e95231b 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -320,6 +320,9 @@ config BCM63XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_HAS_EARLY_PRINTK
+	select SYS_HAS_CPU_BMIPS32_3300
+	select SYS_HAS_CPU_BMIPS4350
+	select SYS_HAS_CPU_BMIPS4380
 	select SWAP_IO_SPACE
 	select GPIOLIB
 	select MIPS_L1_CACHE_SHIFT_4
-- 
GitLab


From 68fcb52b610c1853cadf3d135415555a128355f9 Mon Sep 17 00:00:00 2001
From: Vincent Donnefort <vincent.donnefort@arm.com>
Date: Thu, 4 Nov 2021 17:51:20 +0000
Subject: [PATCH 1593/4878] sched/core: Mitigate race
 cpus_share_cache()/update_top_cache_domain()

[ Upstream commit 42dc938a590c96eeb429e1830123fef2366d9c80 ]

Nothing protects the access to the per_cpu variable sd_llc_id. When testing
the same CPU (i.e. this_cpu == that_cpu), a race condition exists with
update_top_cache_domain(). One scenario being:

              CPU1                            CPU2
  ==================================================================

  per_cpu(sd_llc_id, CPUX) => 0
                                    partition_sched_domains_locked()
      				      detach_destroy_domains()
  cpus_share_cache(CPUX, CPUX)          update_top_cache_domain(CPUX)
    per_cpu(sd_llc_id, CPUX) => 0
                                          per_cpu(sd_llc_id, CPUX) = CPUX
    per_cpu(sd_llc_id, CPUX) => CPUX
    return false

ttwu_queue_cond() wouldn't catch smp_processor_id() == cpu and the result
is a warning triggered from ttwu_queue_wakelist().

Avoid a such race in cpus_share_cache() by always returning true when
this_cpu == that_cpu.

Fixes: 518cd6234178 ("sched: Only queue remote wakeups when crossing cache boundaries")
Reported-by: Jing-Ting Wu <jing-ting.wu@mediatek.com>
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20211104175120.857087-1-vincent.donnefort@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bc8ff11e60242..e456cce772a3a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2650,6 +2650,9 @@ out:
 
 bool cpus_share_cache(int this_cpu, int that_cpu)
 {
+	if (this_cpu == that_cpu)
+		return true;
+
 	return per_cpu(sd_llc_id, this_cpu) == per_cpu(sd_llc_id, that_cpu);
 }
 
-- 
GitLab


From dadcc935f440d50f39cfec0171eac27708ddbada Mon Sep 17 00:00:00 2001
From: Like Xu <likexu@tencent.com>
Date: Wed, 3 Nov 2021 17:17:16 +0800
Subject: [PATCH 1594/4878] perf/x86/vlbr: Add c->flags to vlbr event
 constraints

[ Upstream commit 5863702561e625903ec678551cb056a4b19e0b8a ]

Just like what we do in the x86_get_event_constraints(), the
PERF_X86_EVENT_LBR_SELECT flag should also be propagated
to event->hw.flags so that the host lbr driver can save/restore
MSR_LBR_SELECT for the special vlbr event created by KVM or BPF.

Fixes: 097e4311cda9 ("perf/x86: Add constraint to create guest LBR event without hw counter")
Reported-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Wanpeng Li <wanpengli@tencent.com>
Link: https://lore.kernel.org/r/20211103091716.59906-1-likexu@tencent.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/intel/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 4684bf9fcc428..a521135247eb6 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2879,8 +2879,10 @@ intel_vlbr_constraints(struct perf_event *event)
 {
 	struct event_constraint *c = &vlbr_constraint;
 
-	if (unlikely(constraint_match(c, event->hw.config)))
+	if (unlikely(constraint_match(c, event->hw.config))) {
+		event->hw.flags |= c->flags;
 		return c;
+	}
 
 	return NULL;
 }
-- 
GitLab


From 1d61255327559b203a02d81dbb78ab1a0cd61709 Mon Sep 17 00:00:00 2001
From: Laibin Qiu <qiulaibin@huawei.com>
Date: Fri, 12 Nov 2021 17:33:54 +0800
Subject: [PATCH 1595/4878] blkcg: Remove extra blkcg_bio_issue_init

[ Upstream commit b781d8db580c058ecd54ed7d5dde7f8270b25f5b ]

KASAN reports a use-after-free report when doing block test:

==================================================================
[10050.967049] BUG: KASAN: use-after-free in
submit_bio_checks+0x1539/0x1550

[10050.977638] Call Trace:
[10050.978190]  dump_stack+0x9b/0xce
[10050.979674]  print_address_description.constprop.6+0x3e/0x60
[10050.983510]  kasan_report.cold.9+0x22/0x3a
[10050.986089]  submit_bio_checks+0x1539/0x1550
[10050.989576]  submit_bio_noacct+0x83/0xc80
[10050.993714]  submit_bio+0xa7/0x330
[10050.994435]  mpage_readahead+0x380/0x500
[10050.998009]  read_pages+0x1c1/0xbf0
[10051.002057]  page_cache_ra_unbounded+0x4c2/0x6f0
[10051.007413]  do_page_cache_ra+0xda/0x110
[10051.008207]  force_page_cache_ra+0x23d/0x3d0
[10051.009087]  page_cache_sync_ra+0xca/0x300
[10051.009970]  generic_file_buffered_read+0xbea/0x2130
[10051.012685]  generic_file_read_iter+0x315/0x490
[10051.014472]  blkdev_read_iter+0x113/0x1b0
[10051.015300]  aio_read+0x2ad/0x450
[10051.023786]  io_submit_one+0xc8e/0x1d60
[10051.029855]  __se_sys_io_submit+0x125/0x350
[10051.033442]  do_syscall_64+0x2d/0x40
[10051.034156]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

[10051.048733] Allocated by task 18598:
[10051.049482]  kasan_save_stack+0x19/0x40
[10051.050263]  __kasan_kmalloc.constprop.1+0xc1/0xd0
[10051.051230]  kmem_cache_alloc+0x146/0x440
[10051.052060]  mempool_alloc+0x125/0x2f0
[10051.052818]  bio_alloc_bioset+0x353/0x590
[10051.053658]  mpage_alloc+0x3b/0x240
[10051.054382]  do_mpage_readpage+0xddf/0x1ef0
[10051.055250]  mpage_readahead+0x264/0x500
[10051.056060]  read_pages+0x1c1/0xbf0
[10051.056758]  page_cache_ra_unbounded+0x4c2/0x6f0
[10051.057702]  do_page_cache_ra+0xda/0x110
[10051.058511]  force_page_cache_ra+0x23d/0x3d0
[10051.059373]  page_cache_sync_ra+0xca/0x300
[10051.060198]  generic_file_buffered_read+0xbea/0x2130
[10051.061195]  generic_file_read_iter+0x315/0x490
[10051.062189]  blkdev_read_iter+0x113/0x1b0
[10051.063015]  aio_read+0x2ad/0x450
[10051.063686]  io_submit_one+0xc8e/0x1d60
[10051.064467]  __se_sys_io_submit+0x125/0x350
[10051.065318]  do_syscall_64+0x2d/0x40
[10051.066082]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

[10051.067455] Freed by task 13307:
[10051.068136]  kasan_save_stack+0x19/0x40
[10051.068931]  kasan_set_track+0x1c/0x30
[10051.069726]  kasan_set_free_info+0x1b/0x30
[10051.070621]  __kasan_slab_free+0x111/0x160
[10051.071480]  kmem_cache_free+0x94/0x460
[10051.072256]  mempool_free+0xd6/0x320
[10051.072985]  bio_free+0xe0/0x130
[10051.073630]  bio_put+0xab/0xe0
[10051.074252]  bio_endio+0x3a6/0x5d0
[10051.074984]  blk_update_request+0x590/0x1370
[10051.075870]  scsi_end_request+0x7d/0x400
[10051.076667]  scsi_io_completion+0x1aa/0xe50
[10051.077503]  scsi_softirq_done+0x11b/0x240
[10051.078344]  blk_mq_complete_request+0xd4/0x120
[10051.079275]  scsi_mq_done+0xf0/0x200
[10051.080036]  virtscsi_vq_done+0xbc/0x150
[10051.080850]  vring_interrupt+0x179/0x390
[10051.081650]  __handle_irq_event_percpu+0xf7/0x490
[10051.082626]  handle_irq_event_percpu+0x7b/0x160
[10051.083527]  handle_irq_event+0xcc/0x170
[10051.084297]  handle_edge_irq+0x215/0xb20
[10051.085122]  asm_call_irq_on_stack+0xf/0x20
[10051.085986]  common_interrupt+0xae/0x120
[10051.086830]  asm_common_interrupt+0x1e/0x40

==================================================================

Bio will be checked at beginning of submit_bio_noacct(). If bio needs
to be throttled, it will start the timer and stop submit bio directly.
Bio will submit in blk_throtl_dispatch_work_fn() when the timer expires.
But in the current process, if bio is throttled, it will still set bio
issue->value by blkcg_bio_issue_init(). This is redundant and may cause
the above use-after-free.

CPU0                                   CPU1
submit_bio
submit_bio_noacct
  submit_bio_checks
    blk_throtl_bio()
      <=mod_timer(&sq->pending_timer
                                      blk_throtl_dispatch_work_fn
                                        submit_bio_noacct() <= bio have
                                        throttle tag, will throw directly
                                        and bio issue->value will be set
                                        here

                                      bio_endio()
                                      bio_put()
                                      bio_free() <= free this bio

    blkcg_bio_issue_init(bio)
      <= bio has been freed and
      will lead to UAF
  return BLK_QC_T_NONE

Fix this by remove extra blkcg_bio_issue_init.

Fixes: e439bedf6b24 (blkcg: consolidate bio_issue_init() to be a part of core)
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Link: https://lore.kernel.org/r/20211112093354.3581504-1-qiulaibin@huawei.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index fbc39756f37de..26664f2a139eb 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -897,10 +897,8 @@ static noinline_for_stack bool submit_bio_checks(struct bio *bio)
 	if (unlikely(!current->io_context))
 		create_task_io_context(current, GFP_ATOMIC, q->node);
 
-	if (blk_throtl_bio(bio)) {
-		blkcg_bio_issue_init(bio);
+	if (blk_throtl_bio(bio))
 		return false;
-	}
 
 	blk_cgroup_bio_start(bio);
 	blkcg_bio_issue_init(bio);
-- 
GitLab


From 5b2f2cbbc925ac5ce72547a163a69fa90a67e1d0 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Sat, 13 Nov 2021 01:02:08 +0900
Subject: [PATCH 1596/4878] tracing/histogram: Do not copy the fixed-size char
 array field over the field size

[ Upstream commit 63f84ae6b82bb4dff672f76f30c6fd7b9d3766bc ]

Do not copy the fixed-size char array field of the events over
the field size. The histogram treats char array as a string and
there are 2 types of char array in the event, fixed-size and
dynamic string. The dynamic string (__data_loc) field must be
null terminated, but the fixed-size char array field may not
be null terminated (not a string, but just a data).
In that case, histogram can copy the data after the field.
This uses the original field size for fixed-size char array
field to restrict the histogram not to access over the original
field size.

Link: https://lkml.kernel.org/r/163673292822.195747.3696966210526410250.stgit@devnote2

Fixes: 02205a6752f2 (tracing: Add support for 'field variables')
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_events_hist.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 1b7f90e00eb05..642e4645f6406 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1684,9 +1684,10 @@ static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data,
 		if (!hist_field->type)
 			goto free;
 
-		if (field->filter_type == FILTER_STATIC_STRING)
+		if (field->filter_type == FILTER_STATIC_STRING) {
 			hist_field->fn = hist_field_string;
-		else if (field->filter_type == FILTER_DYN_STRING)
+			hist_field->size = field->size;
+		} else if (field->filter_type == FILTER_DYN_STRING)
 			hist_field->fn = hist_field_dynstring;
 		else
 			hist_field->fn = hist_field_pstring;
@@ -2624,7 +2625,7 @@ static inline void __update_field_vars(struct tracing_map_elt *elt,
 			char *str = elt_data->field_var_str[j++];
 			char *val_str = (char *)(uintptr_t)var_val;
 
-			strscpy(str, val_str, STR_VAR_LEN_MAX);
+			strscpy(str, val_str, val->size);
 			var_val = (u64)(uintptr_t)str;
 		}
 		tracing_map_set_var(elt, var_idx, var_val);
@@ -4472,7 +4473,7 @@ static void hist_trigger_elt_update(struct hist_trigger_data *hist_data,
 
 				str = elt_data->field_var_str[idx];
 				val_str = (char *)(uintptr_t)hist_val;
-				strscpy(str, val_str, STR_VAR_LEN_MAX);
+				strscpy(str, val_str, hist_field->size);
 
 				hist_val = (u64)(uintptr_t)str;
 			}
-- 
GitLab


From 11589d3144bc4e272e0aae46ce8156162e99babc Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Thu, 11 Nov 2021 23:45:25 -0800
Subject: [PATCH 1597/4878] perf bpf: Avoid memory leak from
 perf_env__insert_btf()

[ Upstream commit 4924b1f7c46711762fd0e65c135ccfbcfd6ded1f ]

perf_env__insert_btf() doesn't insert if a duplicate BTF id is
encountered and this causes a memory leak. Modify the function to return
a success/error value and then free the memory if insertion didn't
happen.

v2. Adds a return -1 when the insertion error occurs in
    perf_env__fetch_btf. This doesn't affect anything as the result is
    never checked.

Fixes: 3792cb2ff43b1b19 ("perf bpf: Save BTF in a rbtree in perf_env")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20211112074525.121633-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/bpf-event.c | 6 +++++-
 tools/perf/util/env.c       | 5 ++++-
 tools/perf/util/env.h       | 2 +-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c
index c8101575dbf45..4eb02762104ba 100644
--- a/tools/perf/util/bpf-event.c
+++ b/tools/perf/util/bpf-event.c
@@ -109,7 +109,11 @@ static int perf_env__fetch_btf(struct perf_env *env,
 	node->data_size = data_size;
 	memcpy(node->data, data, data_size);
 
-	perf_env__insert_btf(env, node);
+	if (!perf_env__insert_btf(env, node)) {
+		/* Insertion failed because of a duplicate. */
+		free(node);
+		return -1;
+	}
 	return 0;
 }
 
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index f0dceb527ca38..d81ed1bc14bdc 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -71,12 +71,13 @@ out:
 	return node;
 }
 
-void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node)
+bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node)
 {
 	struct rb_node *parent = NULL;
 	__u32 btf_id = btf_node->id;
 	struct btf_node *node;
 	struct rb_node **p;
+	bool ret = true;
 
 	down_write(&env->bpf_progs.lock);
 	p = &env->bpf_progs.btfs.rb_node;
@@ -90,6 +91,7 @@ void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node)
 			p = &(*p)->rb_right;
 		} else {
 			pr_debug("duplicated btf %u\n", btf_id);
+			ret = false;
 			goto out;
 		}
 	}
@@ -99,6 +101,7 @@ void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node)
 	env->bpf_progs.btfs_cnt++;
 out:
 	up_write(&env->bpf_progs.lock);
+	return ret;
 }
 
 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id)
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index a129726520064..01378a955dd5e 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -143,7 +143,7 @@ void perf_env__insert_bpf_prog_info(struct perf_env *env,
 				    struct bpf_prog_info_node *info_node);
 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
 							__u32 prog_id);
-void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
+bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
 
 int perf_env__numa_node(struct perf_env *env, int cpu);
-- 
GitLab


From 2ada5c0877f4aa9b0749e7777557d9a5d2973082 Mon Sep 17 00:00:00 2001
From: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Date: Fri, 12 Nov 2021 22:11:33 +0200
Subject: [PATCH 1598/4878] perf bench futex: Fix memory leak of
 perf_cpu_map__new()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 88e48238d53682281c9de2a0b65d24d3b64542a0 ]

ASan reports memory leaks while running:

  $ sudo ./perf bench futex all

The leaks are caused by perf_cpu_map__new not being freed.
This patch adds the missing perf_cpu_map__put since it calls
cpu_map_delete implicitly.

Fixes: 9c3516d1b850ea93 ("libperf: Add perf_cpu_map__new()/perf_cpu_map__read() functions")
Signed-off-by: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: André Almeida <andrealmeid@collabora.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sohaib Mohamed <sohaib.amhmd@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/20211112201134.77892-1-sohaib.amhmd@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/bench/futex-lock-pi.c       | 1 +
 tools/perf/bench/futex-requeue.c       | 1 +
 tools/perf/bench/futex-wake-parallel.c | 1 +
 tools/perf/bench/futex-wake.c          | 1 +
 4 files changed, 4 insertions(+)

diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index bb25d8beb3b85..159bc89e6a79a 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -226,6 +226,7 @@ int bench_futex_lock_pi(int argc, const char **argv)
 	print_summary();
 
 	free(worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 err:
 	usage_with_options(bench_futex_lock_pi_usage, options);
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index 7a15c2e610228..105b36cdc42d3 100644
--- a/tools/perf/bench/futex-requeue.c
+++ b/tools/perf/bench/futex-requeue.c
@@ -216,6 +216,7 @@ int bench_futex_requeue(int argc, const char **argv)
 	print_summary();
 
 	free(worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 err:
 	usage_with_options(bench_futex_requeue_usage, options);
diff --git a/tools/perf/bench/futex-wake-parallel.c b/tools/perf/bench/futex-wake-parallel.c
index cd2b81a845acb..a129c94eb3fe1 100644
--- a/tools/perf/bench/futex-wake-parallel.c
+++ b/tools/perf/bench/futex-wake-parallel.c
@@ -320,6 +320,7 @@ int bench_futex_wake_parallel(int argc, const char **argv)
 	print_summary();
 
 	free(blocked_worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 }
 #endif /* HAVE_PTHREAD_BARRIER */
diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c
index 2dfcef3e371e4..507ff533612c6 100644
--- a/tools/perf/bench/futex-wake.c
+++ b/tools/perf/bench/futex-wake.c
@@ -210,5 +210,6 @@ int bench_futex_wake(int argc, const char **argv)
 	print_summary();
 
 	free(worker);
+	perf_cpu_map__put(cpu);
 	return ret;
 }
-- 
GitLab


From aa31e3fda68f6cd8340f5beafe8bfd3ccf4ccd4c Mon Sep 17 00:00:00 2001
From: James Clark <james.clark@arm.com>
Date: Thu, 28 Oct 2021 14:48:26 +0100
Subject: [PATCH 1599/4878] perf tests: Remove bash construct from
 record+zstd_comp_decomp.sh

[ Upstream commit a9cdc1c5e3700a5200e5ca1f90b6958b6483845b ]

Commit 463538a383a2 ("perf tests: Fix test 68 zstd compression for
s390") inadvertently removed the -g flag from all platforms rather than
just s390, because the [[ ]] construct fails in sh. Changing to single
brackets restores testing of call graphs and removes the following error
from the output:

  $ ./perf test -v 85
  85: Zstd perf.data compression/decompression                        :
  --- start ---
  test child forked, pid 50643
  Collecting compressed record file:
  ./tests/shell/record+zstd_comp_decomp.sh: 15: [[: not found

Fixes: 463538a383a2 ("perf tests: Fix test 68 zstd compression for s390")
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: https://lore.kernel.org/r/20211028134828.65774-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/tests/shell/record+zstd_comp_decomp.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/record+zstd_comp_decomp.sh b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
index 045723b3d9928..c62af807198de 100755
--- a/tools/perf/tests/shell/record+zstd_comp_decomp.sh
+++ b/tools/perf/tests/shell/record+zstd_comp_decomp.sh
@@ -12,7 +12,7 @@ skip_if_no_z_record() {
 
 collect_z_record() {
 	echo "Collecting compressed record file:"
-	[[ "$(uname -m)" != s390x ]] && gflag='-g'
+	[ "$(uname -m)" != s390x ] && gflag='-g'
 	$perf_tool record -o $trace_file $gflag -z -F 5000 -- \
 		dd count=500 if=/dev/urandom of=/dev/null
 }
-- 
GitLab


From 8da80ec6d4f7c90e0ea5b9edb37c211adc3e9a01 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Wed, 10 Nov 2021 16:36:04 +0100
Subject: [PATCH 1600/4878] drm/nouveau: hdmigv100.c: fix corrupted HDMI Vendor
 InfoFrame

[ Upstream commit 3cc1ae1fa70ab369e4645e38ce335a19438093ad ]

gv100_hdmi_ctrl() writes vendor_infoframe.subpack0_high to 0x6f0110, and
then overwrites it with 0. Just drop the overwrite with 0, that's clearly
a mistake.

Because of this issue the HDMI VIC is 0 instead of 1 in the HDMI Vendor
InfoFrame when transmitting 4kp30.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 290ffeafcc1a ("drm/nouveau/disp/gv100: initial support")
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3d3bd0f7-c150-2479-9350-35d394ee772d@xs4all.nl
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigv100.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigv100.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigv100.c
index 6e3c450eaacef..3ff49344abc77 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigv100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigv100.c
@@ -62,7 +62,6 @@ gv100_hdmi_ctrl(struct nvkm_ior *ior, int head, bool enable, u8 max_ac_packet,
 		nvkm_wr32(device, 0x6f0108 + hdmi, vendor_infoframe.header);
 		nvkm_wr32(device, 0x6f010c + hdmi, vendor_infoframe.subpack0_low);
 		nvkm_wr32(device, 0x6f0110 + hdmi, vendor_infoframe.subpack0_high);
-		nvkm_wr32(device, 0x6f0110 + hdmi, 0x00000000);
 		nvkm_wr32(device, 0x6f0114 + hdmi, 0x00000000);
 		nvkm_wr32(device, 0x6f0118 + hdmi, 0x00000000);
 		nvkm_wr32(device, 0x6f011c + hdmi, 0x00000000);
-- 
GitLab


From 5f7aadf03f98d641b32837f32a401e543d6e5a69 Mon Sep 17 00:00:00 2001
From: Arjun Roy <arjunroy@google.com>
Date: Wed, 2 Dec 2020 14:53:42 -0800
Subject: [PATCH 1601/4878] net-zerocopy: Copy straggler unaligned data for TCP
 Rx. zerocopy.

[ Upstream commit 18fb76ed53865c1b5d5f0157b1b825704590beb5 ]

When TCP receive zerocopy does not successfully map the entire
requested space, it outputs a 'hint' that the caller should recvmsg().

Augment zerocopy to accept a user buffer that it tries to copy this
hint into - if it is possible to copy the entire hint, it will do so.
This elides a recvmsg() call for received traffic that isn't exactly
page-aligned in size.

This was tested with RPC-style traffic of arbitrary sizes. Normally,
each received message required at least one getsockopt() call, and one
recvmsg() call for the remaining unaligned data.

With this change, almost all of the recvmsg() calls are eliminated,
leading to a savings of about 25%-50% in number of system calls
for RPC-style workloads.

Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/tcp.h |  2 +
 net/ipv4/tcp.c           | 84 ++++++++++++++++++++++++++++++++--------
 2 files changed, 70 insertions(+), 16 deletions(-)

diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index cfcb10b754838..62db78b9c1a0a 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -349,5 +349,7 @@ struct tcp_zerocopy_receive {
 	__u32 recv_skip_hint;	/* out: amount of bytes to skip */
 	__u32 inq; /* out: amount of bytes in read queue */
 	__s32 err; /* out: socket error */
+	__u64 copybuf_address;	/* in: copybuf address (small reads) */
+	__s32 copybuf_len; /* in/out: copybuf bytes avail/used or error */
 };
 #endif /* _UAPI_LINUX_TCP_H */
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index e8aca226c4ae3..ba6e4c6db3b0a 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1746,6 +1746,52 @@ int tcp_mmap(struct file *file, struct socket *sock,
 }
 EXPORT_SYMBOL(tcp_mmap);
 
+static int tcp_copy_straggler_data(struct tcp_zerocopy_receive *zc,
+				   struct sk_buff *skb, u32 copylen,
+				   u32 *offset, u32 *seq)
+{
+	unsigned long copy_address = (unsigned long)zc->copybuf_address;
+	struct msghdr msg = {};
+	struct iovec iov;
+	int err;
+
+	if (copy_address != zc->copybuf_address)
+		return -EINVAL;
+
+	err = import_single_range(READ, (void __user *)copy_address,
+				  copylen, &iov, &msg.msg_iter);
+	if (err)
+		return err;
+	err = skb_copy_datagram_msg(skb, *offset, &msg, copylen);
+	if (err)
+		return err;
+	zc->recv_skip_hint -= copylen;
+	*offset += copylen;
+	*seq += copylen;
+	return (__s32)copylen;
+}
+
+static int tcp_zerocopy_handle_leftover_data(struct tcp_zerocopy_receive *zc,
+					     struct sock *sk,
+					     struct sk_buff *skb,
+					     u32 *seq,
+					     s32 copybuf_len)
+{
+	u32 offset, copylen = min_t(u32, copybuf_len, zc->recv_skip_hint);
+
+	if (!copylen)
+		return 0;
+	/* skb is null if inq < PAGE_SIZE. */
+	if (skb)
+		offset = *seq - TCP_SKB_CB(skb)->seq;
+	else
+		skb = tcp_recv_skb(sk, *seq, &offset);
+
+	zc->copybuf_len = tcp_copy_straggler_data(zc, skb, copylen, &offset,
+						  seq);
+	return zc->copybuf_len < 0 ? 0 : copylen;
+}
+
 static int tcp_zerocopy_vm_insert_batch(struct vm_area_struct *vma,
 					struct page **pages,
 					unsigned long pages_to_map,
@@ -1779,8 +1825,10 @@ static int tcp_zerocopy_vm_insert_batch(struct vm_area_struct *vma,
 static int tcp_zerocopy_receive(struct sock *sk,
 				struct tcp_zerocopy_receive *zc)
 {
+	u32 length = 0, offset, vma_len, avail_len, aligned_len, copylen = 0;
 	unsigned long address = (unsigned long)zc->address;
-	u32 length = 0, seq, offset, zap_len;
+	s32 copybuf_len = zc->copybuf_len;
+	struct tcp_sock *tp = tcp_sk(sk);
 	#define PAGE_BATCH_SIZE 8
 	struct page *pages[PAGE_BATCH_SIZE];
 	const skb_frag_t *frags = NULL;
@@ -1788,10 +1836,12 @@ static int tcp_zerocopy_receive(struct sock *sk,
 	struct sk_buff *skb = NULL;
 	unsigned long pg_idx = 0;
 	unsigned long curr_addr;
-	struct tcp_sock *tp;
-	int inq;
+	u32 seq = tp->copied_seq;
+	int inq = tcp_inq(sk);
 	int ret;
 
+	zc->copybuf_len = 0;
+
 	if (address & (PAGE_SIZE - 1) || address != zc->address)
 		return -EINVAL;
 
@@ -1800,8 +1850,6 @@ static int tcp_zerocopy_receive(struct sock *sk,
 
 	sock_rps_record_flow(sk);
 
-	tp = tcp_sk(sk);
-
 	mmap_read_lock(current->mm);
 
 	vma = find_vma(current->mm, address);
@@ -1809,17 +1857,16 @@ static int tcp_zerocopy_receive(struct sock *sk,
 		mmap_read_unlock(current->mm);
 		return -EINVAL;
 	}
-	zc->length = min_t(unsigned long, zc->length, vma->vm_end - address);
-
-	seq = tp->copied_seq;
-	inq = tcp_inq(sk);
-	zc->length = min_t(u32, zc->length, inq);
-	zap_len = zc->length & ~(PAGE_SIZE - 1);
-	if (zap_len) {
-		zap_page_range(vma, address, zap_len);
+	vma_len = min_t(unsigned long, zc->length, vma->vm_end - address);
+	avail_len = min_t(u32, vma_len, inq);
+	aligned_len = avail_len & ~(PAGE_SIZE - 1);
+	if (aligned_len) {
+		zap_page_range(vma, address, aligned_len);
+		zc->length = aligned_len;
 		zc->recv_skip_hint = 0;
 	} else {
-		zc->recv_skip_hint = zc->length;
+		zc->length = avail_len;
+		zc->recv_skip_hint = avail_len;
 	}
 	ret = 0;
 	curr_addr = address;
@@ -1888,13 +1935,18 @@ static int tcp_zerocopy_receive(struct sock *sk,
 	}
 out:
 	mmap_read_unlock(current->mm);
-	if (length) {
+	/* Try to copy straggler data. */
+	if (!ret)
+		copylen = tcp_zerocopy_handle_leftover_data(zc, sk, skb, &seq,
+							    copybuf_len);
+
+	if (length + copylen) {
 		WRITE_ONCE(tp->copied_seq, seq);
 		tcp_rcv_space_adjust(sk);
 
 		/* Clean up data we have read: This will do ACK frames. */
 		tcp_recv_skb(sk, seq, &offset);
-		tcp_cleanup_rbuf(sk, length);
+		tcp_cleanup_rbuf(sk, length + copylen);
 		ret = 0;
 		if (length == zc->length)
 			zc->recv_skip_hint = 0;
-- 
GitLab


From d1a6150ca6166d76bbda77afa27ee46c010fcdc0 Mon Sep 17 00:00:00 2001
From: Arjun Roy <arjunroy@google.com>
Date: Wed, 2 Dec 2020 14:53:44 -0800
Subject: [PATCH 1602/4878] net-zerocopy: Refactor skb frag fast-forward op.

[ Upstream commit 7fba5309efe24e4f0284ef4b8663cdf401035e72 ]

Refactor skb frag fast-forwarding for tcp receive zerocopy. This is
part of a patch set that introduces short-circuited hybrid copies
for small receive operations, which results in roughly 33% fewer
syscalls for small RPC scenarios.

skb_advance_to_frag(), given a skb and an offset into the skb,
iterates from the first frag for the skb until we're at the frag
specified by the offset. Assuming the offset provided refers to how
many bytes in the skb are already read, the returned frag points to
the next frag we may read from, while offset_frag is set to the number
of bytes from this frag that we have already read.

If frag is not null and offset_frag is equal to 0, then we may be able
to map this frag's page into the process address space with
vm_insert_page(). However, if offset_frag is not equal to 0, then we
cannot do so.

Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp.c | 35 ++++++++++++++++++++++++++---------
 1 file changed, 26 insertions(+), 9 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ba6e4c6db3b0a..b3721cff45023 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1746,6 +1746,28 @@ int tcp_mmap(struct file *file, struct socket *sock,
 }
 EXPORT_SYMBOL(tcp_mmap);
 
+static skb_frag_t *skb_advance_to_frag(struct sk_buff *skb, u32 offset_skb,
+				       u32 *offset_frag)
+{
+	skb_frag_t *frag;
+
+	offset_skb -= skb_headlen(skb);
+	if ((int)offset_skb < 0 || skb_has_frag_list(skb))
+		return NULL;
+
+	frag = skb_shinfo(skb)->frags;
+	while (offset_skb) {
+		if (skb_frag_size(frag) > offset_skb) {
+			*offset_frag = offset_skb;
+			return frag;
+		}
+		offset_skb -= skb_frag_size(frag);
+		++frag;
+	}
+	*offset_frag = 0;
+	return frag;
+}
+
 static int tcp_copy_straggler_data(struct tcp_zerocopy_receive *zc,
 				   struct sk_buff *skb, u32 copylen,
 				   u32 *offset, u32 *seq)
@@ -1872,6 +1894,8 @@ static int tcp_zerocopy_receive(struct sock *sk,
 	curr_addr = address;
 	while (length + PAGE_SIZE <= zc->length) {
 		if (zc->recv_skip_hint < PAGE_SIZE) {
+			u32 offset_frag;
+
 			/* If we're here, finish the current batch. */
 			if (pg_idx) {
 				ret = tcp_zerocopy_vm_insert_batch(vma, pages,
@@ -1892,16 +1916,9 @@ static int tcp_zerocopy_receive(struct sock *sk,
 				skb = tcp_recv_skb(sk, seq, &offset);
 			}
 			zc->recv_skip_hint = skb->len - offset;
-			offset -= skb_headlen(skb);
-			if ((int)offset < 0 || skb_has_frag_list(skb))
+			frags = skb_advance_to_frag(skb, offset, &offset_frag);
+			if (!frags || offset_frag)
 				break;
-			frags = skb_shinfo(skb)->frags;
-			while (offset) {
-				if (skb_frag_size(frags) > offset)
-					goto out;
-				offset -= skb_frag_size(frags);
-				frags++;
-			}
 		}
 		if (skb_frag_size(frags) != PAGE_SIZE || skb_frag_off(frags)) {
 			int remaining = zc->recv_skip_hint;
-- 
GitLab


From 900ea2f6287f5ad21e3554272047ea403714bafe Mon Sep 17 00:00:00 2001
From: Arjun Roy <arjunroy@google.com>
Date: Thu, 11 Nov 2021 15:52:15 -0800
Subject: [PATCH 1603/4878] tcp: Fix uninitialized access in skb frags array
 for Rx 0cp.

[ Upstream commit 70701b83e208767f2720d8cd3e6a62cddafb3a30 ]

TCP Receive zerocopy iterates through the SKB queue via
tcp_recv_skb(), acquiring a pointer to an SKB and an offset within
that SKB to read from. From there, it iterates the SKB frags array to
determine which offset to start remapping pages from.

However, this is built on the assumption that the offset read so far
within the SKB is smaller than the SKB length. If this assumption is
violated, we can attempt to read an invalid frags array element, which
would cause a fault.

tcp_recv_skb() can cause such an SKB to be returned when the TCP FIN
flag is set. Therefore, we must guard against this occurrence inside
skb_advance_frag().

One way that we can reproduce this error follows:
1) In a receiver program, call getsockopt(TCP_ZEROCOPY_RECEIVE) with:
char some_array[32 * 1024];
struct tcp_zerocopy_receive zc = {
  .copybuf_address  = (__u64) &some_array[0],
  .copybuf_len = 32 * 1024,
};

2) In a sender program, after a TCP handshake, send the following
sequence of packets:
  i) Seq = [X, X+4000]
  ii) Seq = [X+4000, X+5000]
  iii) Seq = [X+4000, X+5000], Flags = FIN | URG, urgptr=1000

(This can happen without URG, if we have a signal pending, but URG is
a convenient way to reproduce the behaviour).

In this case, the following event sequence will occur on the receiver:

tcp_zerocopy_receive():
-> receive_fallback_to_copy() // copybuf_len >= inq
-> tcp_recvmsg_locked() // reads 5000 bytes, then breaks due to URG
-> tcp_recv_skb() // yields skb with skb->len == offset
-> tcp_zerocopy_set_hint_for_skb()
-> skb_advance_to_frag() // will returns a frags ptr. >= nr_frags
-> find_next_mappable_frag() // will dereference this bad frags ptr.

With this patch, skb_advance_to_frag() will no longer return an
invalid frags pointer, and will return NULL instead, fixing the issue.

Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Fixes: 05255b823a61 ("tcp: add TCP_ZEROCOPY_RECEIVE support for zerocopy receive")
Link: https://lore.kernel.org/r/20211111235215.2605384-1-arjunroy.kdev@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b3721cff45023..bb16c88f58a3c 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1751,6 +1751,9 @@ static skb_frag_t *skb_advance_to_frag(struct sk_buff *skb, u32 offset_skb,
 {
 	skb_frag_t *frag;
 
+	if (unlikely(offset_skb >= skb->len))
+		return NULL;
+
 	offset_skb -= skb_headlen(skb);
 	if ((int)offset_skb < 0 || skb_has_frag_list(skb))
 		return NULL;
-- 
GitLab


From 3984876f91a3da423fa27c3f48b568a58f4a65d8 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Sun, 14 Nov 2021 13:28:34 -0500
Subject: [PATCH 1604/4878] tracing: Add length protection to histogram string
 copies

[ Upstream commit 938aa33f14657c9ed9deea348b7d6f14b6d69cb7 ]

The string copies to the histogram storage has a max size of 256 bytes
(defined by MAX_FILTER_STR_VAL). Only the string size of the event field
needs to be copied to the event storage, but no more than what is in the
event storage. Although nothing should be bigger than 256 bytes, there's
no protection against overwriting of the storage if one day there is.

Copy no more than the destination size, and enforce it.

Also had to turn MAX_FILTER_STR_VAL into an unsigned int, to keep the
min() comparison of the string sizes of comparable types.

Link: https://lore.kernel.org/all/CAHk-=wjREUihCGrtRBwfX47y_KrLCGjiq3t6QtoNJpmVrAEb1w@mail.gmail.com/
Link: https://lkml.kernel.org/r/20211114132834.183429a4@rorschach.local.home

Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 63f84ae6b82b ("tracing/histogram: Do not copy the fixed-size char array field over the field size")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/trace_events.h     | 2 +-
 kernel/trace/trace_events_hist.c | 9 +++++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index d321fe5ad1a14..c57b79301a75e 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -571,7 +571,7 @@ struct trace_event_file {
 
 #define PERF_MAX_TRACE_SIZE	2048
 
-#define MAX_FILTER_STR_VAL	256	/* Should handle KSYM_SYMBOL_LEN */
+#define MAX_FILTER_STR_VAL	256U	/* Should handle KSYM_SYMBOL_LEN */
 
 enum event_trigger_type {
 	ETT_NONE		= (0),
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 642e4645f6406..c2ec467a5766b 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2624,8 +2624,10 @@ static inline void __update_field_vars(struct tracing_map_elt *elt,
 		if (val->flags & HIST_FIELD_FL_STRING) {
 			char *str = elt_data->field_var_str[j++];
 			char *val_str = (char *)(uintptr_t)var_val;
+			unsigned int size;
 
-			strscpy(str, val_str, val->size);
+			size = min(val->size, STR_VAR_LEN_MAX);
+			strscpy(str, val_str, size);
 			var_val = (u64)(uintptr_t)str;
 		}
 		tracing_map_set_var(elt, var_idx, var_val);
@@ -4465,6 +4467,7 @@ static void hist_trigger_elt_update(struct hist_trigger_data *hist_data,
 			if (hist_field->flags & HIST_FIELD_FL_STRING) {
 				unsigned int str_start, var_str_idx, idx;
 				char *str, *val_str;
+				unsigned int size;
 
 				str_start = hist_data->n_field_var_str +
 					hist_data->n_save_var_str;
@@ -4473,7 +4476,9 @@ static void hist_trigger_elt_update(struct hist_trigger_data *hist_data,
 
 				str = elt_data->field_var_str[idx];
 				val_str = (char *)(uintptr_t)hist_val;
-				strscpy(str, val_str, hist_field->size);
+
+				size = min(hist_field->size, STR_VAR_LEN_MAX);
+				strscpy(str, val_str, size);
 
 				hist_val = (u64)(uintptr_t)str;
 			}
-- 
GitLab


From 3ae75cc38a8457df4d3e1667dded7d51b08a5af8 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@linaro.org>
Date: Fri, 12 Nov 2021 16:22:10 -0600
Subject: [PATCH 1605/4878] net: ipa: disable HOLB drop when updating timer

[ Upstream commit 816316cacad2b5abd5b41423cf04e4845239abd4 ]

The head-of-line blocking timer should only be modified when
head-of-line drop is disabled.

One of the steps in recovering from a modem crash is to enable
dropping of packets with timeout of 0 (immediate).  We don't know
how the modem configured its endpoints, so before we program the
timer, we need to ensure HOL_BLOCK is disabled.

Fixes: 84f9bd12d46db ("soc: qcom: ipa: IPA endpoints")
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ipa/ipa_endpoint.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index b40b711cf4bd5..a37aae00e128f 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -703,6 +703,7 @@ static void ipa_endpoint_init_hol_block_timer(struct ipa_endpoint *endpoint,
 	u32 offset;
 	u32 val;
 
+	/* This should only be changed when HOL_BLOCK_EN is disabled */
 	offset = IPA_REG_ENDP_INIT_HOL_BLOCK_TIMER_N_OFFSET(endpoint_id);
 	val = ipa_reg_init_hol_block_timer_val(ipa, microseconds);
 	iowrite32(val, ipa->reg_virt + offset);
@@ -730,6 +731,7 @@ void ipa_endpoint_modem_hol_block_clear_all(struct ipa *ipa)
 		if (endpoint->toward_ipa || endpoint->ee_id != GSI_EE_MODEM)
 			continue;
 
+		ipa_endpoint_init_hol_block_enable(endpoint, false);
 		ipa_endpoint_init_hol_block_timer(endpoint, 0);
 		ipa_endpoint_init_hol_block_enable(endpoint, true);
 	}
-- 
GitLab


From 4fc060abaa2674f154e708aaafc0d3c780d0a418 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Sun, 14 Nov 2021 01:36:36 +0300
Subject: [PATCH 1606/4878] net: bnx2x: fix variable dereferenced before check

[ Upstream commit f8885ac89ce310570e5391fe0bf0ec9c7c9b4fdc ]

Smatch says:
	bnx2x_init_ops.h:640 bnx2x_ilt_client_mem_op()
	warn: variable dereferenced before check 'ilt' (see line 638)

Move ilt_cli variable initialization _after_ ilt validation, because
it's unsafe to deref the pointer before validation check.

Fixes: 523224a3b3cd ("bnx2x, cnic, bnx2i: use new FW/HSI")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_init_ops.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init_ops.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init_ops.h
index 1835d2e451c01..fc7fce642666c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init_ops.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init_ops.h
@@ -635,11 +635,13 @@ static int bnx2x_ilt_client_mem_op(struct bnx2x *bp, int cli_num,
 {
 	int i, rc;
 	struct bnx2x_ilt *ilt = BP_ILT(bp);
-	struct ilt_client_info *ilt_cli = &ilt->clients[cli_num];
+	struct ilt_client_info *ilt_cli;
 
 	if (!ilt || !ilt->lines)
 		return -1;
 
+	ilt_cli = &ilt->clients[cli_num];
+
 	if (ilt_cli->flags & (ILT_CLIENT_SKIP_INIT | ILT_CLIENT_SKIP_MEM))
 		return 0;
 
-- 
GitLab


From 3d59416647861dc0ea4a46c82b8bf0209b12ad10 Mon Sep 17 00:00:00 2001
From: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Date: Mon, 15 Nov 2021 02:38:01 -0500
Subject: [PATCH 1607/4878] bnxt_en: reject indirect blk offload when
 hw-tc-offload is off

[ Upstream commit b0757491a118ae5727cf9f1c3a11544397d46596 ]

The driver does not check if hw-tc-offload is enabled for the device
before offloading a flow in the context of indirect block callback.
Fix this by checking NETIF_F_HW_TC in the features flag and rejecting
the offload request.  This will avoid unnecessary dmesg error logs when
hw-tc-offload is disabled, such as these:

bnxt_en 0000:19:00.1 eno2np1: dev(ifindex=294) not on same switch
bnxt_en 0000:19:00.1 eno2np1: Error: bnxt_tc_add_flow: cookie=0xffff8dace1c88000 error=-22
bnxt_en 0000:19:00.0 eno1np0: dev(ifindex=294) not on same switch
bnxt_en 0000:19:00.0 eno1np0: Error: bnxt_tc_add_flow: cookie=0xffff8dace1c88000 error=-22

Reported-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Fixes: 627c89d00fb9 ("bnxt_en: flow_offload: offload tunnel decap rules via indirect callbacks")
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
index 2186706cf9130..3e9b1f59e381d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
@@ -1854,7 +1854,7 @@ static int bnxt_tc_setup_indr_block_cb(enum tc_setup_type type,
 	struct flow_cls_offload *flower = type_data;
 	struct bnxt *bp = priv->bp;
 
-	if (flower->common.chain_index)
+	if (!tc_cls_can_offload_and_chain0(bp->dev, type_data))
 		return -EOPNOTSUPP;
 
 	switch (type) {
-- 
GitLab


From 9c3c2ef6ca2618c64f925b28a9d31a0d1212cd15 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Mon, 15 Nov 2021 07:45:24 -0500
Subject: [PATCH 1608/4878] tipc: only accept encrypted MSG_CRYPTO msgs

[ Upstream commit 271351d255b09e39c7f6437738cba595f9b235be ]

The MSG_CRYPTO msgs are always encrypted and sent to other nodes
for keys' deployment. But when receiving in peers, if those nodes
do not validate it and make sure it's encrypted, one could craft
a malicious MSG_CRYPTO msg to deploy its key with no need to know
other nodes' keys.

This patch is to do that by checking TIPC_SKB_CB(skb)->decrypted
and discard it if this packet never got decrypted.

Note that this is also a supplementary fix to CVE-2021-43267 that
can be triggered by an unencrypted malicious MSG_CRYPTO msg.

Fixes: 1ef6f7c9390f ("tipc: add automatic session key exchange")
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/link.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index c92e6984933cb..29591955d08a5 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1258,8 +1258,11 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb,
 		return false;
 #ifdef CONFIG_TIPC_CRYPTO
 	case MSG_CRYPTO:
-		tipc_crypto_msg_rcv(l->net, skb);
-		return true;
+		if (TIPC_SKB_CB(skb)->decrypted) {
+			tipc_crypto_msg_rcv(l->net, skb);
+			return true;
+		}
+		fallthrough;
 #endif
 	default:
 		pr_warn("Dropping received illegal msg type\n");
-- 
GitLab


From 4da14ddad19fcaab5087bc54eed3d49ea68a38fc Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 27 Jan 2021 07:27:31 -0800
Subject: [PATCH 1609/4878] net: reduce indentation level in sk_clone_lock()

[ Upstream commit bbc20b70424aeb3c84f833860f6340adda5141fc ]

Rework initial test to jump over init code
if memory allocation has failed.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20210127152731.748663-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/sock.c | 189 ++++++++++++++++++++++++------------------------
 1 file changed, 93 insertions(+), 96 deletions(-)

diff --git a/net/core/sock.c b/net/core/sock.c
index f9c835167391d..3da4cd632ba8e 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1883,123 +1883,120 @@ static void sk_init_common(struct sock *sk)
 struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 {
 	struct proto *prot = READ_ONCE(sk->sk_prot);
-	struct sock *newsk;
+	struct sk_filter *filter;
 	bool is_charged = true;
+	struct sock *newsk;
 
 	newsk = sk_prot_alloc(prot, priority, sk->sk_family);
-	if (newsk != NULL) {
-		struct sk_filter *filter;
+	if (!newsk)
+		goto out;
 
-		sock_copy(newsk, sk);
+	sock_copy(newsk, sk);
 
-		newsk->sk_prot_creator = prot;
+	newsk->sk_prot_creator = prot;
 
-		/* SANITY */
-		if (likely(newsk->sk_net_refcnt))
-			get_net(sock_net(newsk));
-		sk_node_init(&newsk->sk_node);
-		sock_lock_init(newsk);
-		bh_lock_sock(newsk);
-		newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
-		newsk->sk_backlog.len = 0;
+	/* SANITY */
+	if (likely(newsk->sk_net_refcnt))
+		get_net(sock_net(newsk));
+	sk_node_init(&newsk->sk_node);
+	sock_lock_init(newsk);
+	bh_lock_sock(newsk);
+	newsk->sk_backlog.head	= newsk->sk_backlog.tail = NULL;
+	newsk->sk_backlog.len = 0;
 
-		atomic_set(&newsk->sk_rmem_alloc, 0);
-		/*
-		 * sk_wmem_alloc set to one (see sk_free() and sock_wfree())
-		 */
-		refcount_set(&newsk->sk_wmem_alloc, 1);
-		atomic_set(&newsk->sk_omem_alloc, 0);
-		sk_init_common(newsk);
+	atomic_set(&newsk->sk_rmem_alloc, 0);
 
-		newsk->sk_dst_cache	= NULL;
-		newsk->sk_dst_pending_confirm = 0;
-		newsk->sk_wmem_queued	= 0;
-		newsk->sk_forward_alloc = 0;
-		atomic_set(&newsk->sk_drops, 0);
-		newsk->sk_send_head	= NULL;
-		newsk->sk_userlocks	= sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
-		atomic_set(&newsk->sk_zckey, 0);
+	/* sk_wmem_alloc set to one (see sk_free() and sock_wfree()) */
+	refcount_set(&newsk->sk_wmem_alloc, 1);
 
-		sock_reset_flag(newsk, SOCK_DONE);
+	atomic_set(&newsk->sk_omem_alloc, 0);
+	sk_init_common(newsk);
 
-		/* sk->sk_memcg will be populated at accept() time */
-		newsk->sk_memcg = NULL;
+	newsk->sk_dst_cache	= NULL;
+	newsk->sk_dst_pending_confirm = 0;
+	newsk->sk_wmem_queued	= 0;
+	newsk->sk_forward_alloc = 0;
+	atomic_set(&newsk->sk_drops, 0);
+	newsk->sk_send_head	= NULL;
+	newsk->sk_userlocks	= sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
+	atomic_set(&newsk->sk_zckey, 0);
 
-		cgroup_sk_clone(&newsk->sk_cgrp_data);
+	sock_reset_flag(newsk, SOCK_DONE);
 
-		rcu_read_lock();
-		filter = rcu_dereference(sk->sk_filter);
-		if (filter != NULL)
-			/* though it's an empty new sock, the charging may fail
-			 * if sysctl_optmem_max was changed between creation of
-			 * original socket and cloning
-			 */
-			is_charged = sk_filter_charge(newsk, filter);
-		RCU_INIT_POINTER(newsk->sk_filter, filter);
-		rcu_read_unlock();
+	/* sk->sk_memcg will be populated at accept() time */
+	newsk->sk_memcg = NULL;
 
-		if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) {
-			/* We need to make sure that we don't uncharge the new
-			 * socket if we couldn't charge it in the first place
-			 * as otherwise we uncharge the parent's filter.
-			 */
-			if (!is_charged)
-				RCU_INIT_POINTER(newsk->sk_filter, NULL);
-			sk_free_unlock_clone(newsk);
-			newsk = NULL;
-			goto out;
-		}
-		RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL);
+	cgroup_sk_clone(&newsk->sk_cgrp_data);
 
-		if (bpf_sk_storage_clone(sk, newsk)) {
-			sk_free_unlock_clone(newsk);
-			newsk = NULL;
-			goto out;
-		}
+	rcu_read_lock();
+	filter = rcu_dereference(sk->sk_filter);
+	if (filter != NULL)
+		/* though it's an empty new sock, the charging may fail
+		 * if sysctl_optmem_max was changed between creation of
+		 * original socket and cloning
+		 */
+		is_charged = sk_filter_charge(newsk, filter);
+	RCU_INIT_POINTER(newsk->sk_filter, filter);
+	rcu_read_unlock();
 
-		/* Clear sk_user_data if parent had the pointer tagged
-		 * as not suitable for copying when cloning.
+	if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) {
+		/* We need to make sure that we don't uncharge the new
+		 * socket if we couldn't charge it in the first place
+		 * as otherwise we uncharge the parent's filter.
 		 */
-		if (sk_user_data_is_nocopy(newsk))
-			newsk->sk_user_data = NULL;
+		if (!is_charged)
+			RCU_INIT_POINTER(newsk->sk_filter, NULL);
+		sk_free_unlock_clone(newsk);
+		newsk = NULL;
+		goto out;
+	}
+	RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL);
 
-		newsk->sk_err	   = 0;
-		newsk->sk_err_soft = 0;
-		newsk->sk_priority = 0;
-		newsk->sk_incoming_cpu = raw_smp_processor_id();
-		if (likely(newsk->sk_net_refcnt))
-			sock_inuse_add(sock_net(newsk), 1);
+	if (bpf_sk_storage_clone(sk, newsk)) {
+		sk_free_unlock_clone(newsk);
+		newsk = NULL;
+		goto out;
+	}
 
-		/*
-		 * Before updating sk_refcnt, we must commit prior changes to memory
-		 * (Documentation/RCU/rculist_nulls.rst for details)
-		 */
-		smp_wmb();
-		refcount_set(&newsk->sk_refcnt, 2);
+	/* Clear sk_user_data if parent had the pointer tagged
+	 * as not suitable for copying when cloning.
+	 */
+	if (sk_user_data_is_nocopy(newsk))
+		newsk->sk_user_data = NULL;
 
-		/*
-		 * Increment the counter in the same struct proto as the master
-		 * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that
-		 * is the same as sk->sk_prot->socks, as this field was copied
-		 * with memcpy).
-		 *
-		 * This _changes_ the previous behaviour, where
-		 * tcp_create_openreq_child always was incrementing the
-		 * equivalent to tcp_prot->socks (inet_sock_nr), so this have
-		 * to be taken into account in all callers. -acme
-		 */
-		sk_refcnt_debug_inc(newsk);
-		sk_set_socket(newsk, NULL);
-		sk_tx_queue_clear(newsk);
-		RCU_INIT_POINTER(newsk->sk_wq, NULL);
+	newsk->sk_err	   = 0;
+	newsk->sk_err_soft = 0;
+	newsk->sk_priority = 0;
+	newsk->sk_incoming_cpu = raw_smp_processor_id();
+	if (likely(newsk->sk_net_refcnt))
+		sock_inuse_add(sock_net(newsk), 1);
 
-		if (newsk->sk_prot->sockets_allocated)
-			sk_sockets_allocated_inc(newsk);
+	/* Before updating sk_refcnt, we must commit prior changes to memory
+	 * (Documentation/RCU/rculist_nulls.rst for details)
+	 */
+	smp_wmb();
+	refcount_set(&newsk->sk_refcnt, 2);
 
-		if (sock_needs_netstamp(sk) &&
-		    newsk->sk_flags & SK_FLAGS_TIMESTAMP)
-			net_enable_timestamp();
-	}
+	/* Increment the counter in the same struct proto as the master
+	 * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that
+	 * is the same as sk->sk_prot->socks, as this field was copied
+	 * with memcpy).
+	 *
+	 * This _changes_ the previous behaviour, where
+	 * tcp_create_openreq_child always was incrementing the
+	 * equivalent to tcp_prot->socks (inet_sock_nr), so this have
+	 * to be taken into account in all callers. -acme
+	 */
+	sk_refcnt_debug_inc(newsk);
+	sk_set_socket(newsk, NULL);
+	sk_tx_queue_clear(newsk);
+	RCU_INIT_POINTER(newsk->sk_wq, NULL);
+
+	if (newsk->sk_prot->sockets_allocated)
+		sk_sockets_allocated_inc(newsk);
+
+	if (sock_needs_netstamp(sk) && newsk->sk_flags & SK_FLAGS_TIMESTAMP)
+		net_enable_timestamp();
 out:
 	return newsk;
 }
-- 
GitLab


From 437e21e2c9ae5a29ea1509df12705964e191954f Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: Mon, 15 Nov 2021 19:16:56 +0900
Subject: [PATCH 1610/4878] sock: fix /proc/net/sockstat underflow in
 sk_clone_lock()

[ Upstream commit 938cca9e4109b30ee1d476904538225a825e54eb ]

sk_clone_lock() needs to call sock_inuse_add(1) before entering the
sk_free_unlock_clone() error path, for __sk_free() from sk_free() from
sk_free_unlock_clone() calls sock_inuse_add(-1).

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 648845ab7e200993 ("sock: Move the socket inuse to namespace.")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/sock.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/sock.c b/net/core/sock.c
index 3da4cd632ba8e..6d9af4ef93d7a 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1896,8 +1896,10 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 	newsk->sk_prot_creator = prot;
 
 	/* SANITY */
-	if (likely(newsk->sk_net_refcnt))
+	if (likely(newsk->sk_net_refcnt)) {
 		get_net(sock_net(newsk));
+		sock_inuse_add(sock_net(newsk), 1);
+	}
 	sk_node_init(&newsk->sk_node);
 	sock_lock_init(newsk);
 	bh_lock_sock(newsk);
@@ -1968,8 +1970,6 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 	newsk->sk_err_soft = 0;
 	newsk->sk_priority = 0;
 	newsk->sk_incoming_cpu = raw_smp_processor_id();
-	if (likely(newsk->sk_net_refcnt))
-		sock_inuse_add(sock_net(newsk), 1);
 
 	/* Before updating sk_refcnt, we must commit prior changes to memory
 	 * (Documentation/RCU/rculist_nulls.rst for details)
-- 
GitLab


From 09decd0a102a2a85018aca9038267387e23ab65b Mon Sep 17 00:00:00 2001
From: Wen Gu <guwen@linux.alibaba.com>
Date: Mon, 15 Nov 2021 17:45:07 +0800
Subject: [PATCH 1611/4878] net/smc: Make sure the link_id is unique

[ Upstream commit cf4f5530bb55ef7d5a91036b26676643b80b1616 ]

The link_id is supposed to be unique, but smcr_next_link_id() doesn't
skip the used link_id as expected. So the patch fixes this.

Fixes: 026c381fb477 ("net/smc: introduce link_idx for link group array")
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index c491dd8e67cda..109d790eaebe2 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -287,13 +287,14 @@ static u8 smcr_next_link_id(struct smc_link_group *lgr)
 	int i;
 
 	while (1) {
+again:
 		link_id = ++lgr->next_link_id;
 		if (!link_id)	/* skip zero as link_id */
 			link_id = ++lgr->next_link_id;
 		for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
 			if (smc_link_usable(&lgr->lnk[i]) &&
 			    lgr->lnk[i].link_id == link_id)
-				continue;
+				goto again;
 		}
 		break;
 	}
-- 
GitLab


From 1555d83ddbb7204ef60c58aee6ca3bbef2c5e99f Mon Sep 17 00:00:00 2001
From: Mateusz Palczewski <mateusz.palczewski@intel.com>
Date: Tue, 9 Feb 2021 11:59:38 +0000
Subject: [PATCH 1612/4878] iavf: Fix return of set the new channel count

[ Upstream commit 4e5e6b5d9d1334d3490326b6922a2daaf56a867f ]

Fixed return correct code from set the new channel count.
Implemented by check if reset is done in appropriate time.
This solution give a extra time to pf for reset vf in case
when user want set new channel count for all vfs.
Without this patch it is possible to return misleading output
code to user and vf reset not to be correctly performed by pf.

Fixes: 5520deb15326 ("iavf: Enable support for up to 16 queues")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index c93567f4d0f79..17ec36c4e6c19 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -892,6 +892,7 @@ static int iavf_set_channels(struct net_device *netdev,
 {
 	struct iavf_adapter *adapter = netdev_priv(netdev);
 	u32 num_req = ch->combined_count;
+	int i;
 
 	if ((adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
 	    adapter->num_tc) {
@@ -914,6 +915,20 @@ static int iavf_set_channels(struct net_device *netdev,
 	adapter->num_req_queues = num_req;
 	adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
 	iavf_schedule_reset(adapter);
+
+	/* wait for the reset is done */
+	for (i = 0; i < IAVF_RESET_WAIT_COMPLETE_COUNT; i++) {
+		msleep(IAVF_RESET_WAIT_MS);
+		if (adapter->flags & IAVF_FLAG_RESET_PENDING)
+			continue;
+		break;
+	}
+	if (i == IAVF_RESET_WAIT_COMPLETE_COUNT) {
+		adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
+		adapter->num_active_queues = num_req;
+		return -EOPNOTSUPP;
+	}
+
 	return 0;
 }
 
-- 
GitLab


From 84a13bfe2714b8c92db48f3854d69b318c10a055 Mon Sep 17 00:00:00 2001
From: Nicholas Nunley <nicholas.d.nunley@intel.com>
Date: Fri, 4 Jun 2021 09:48:53 -0700
Subject: [PATCH 1613/4878] iavf: check for null in iavf_fix_features

[ Upstream commit 8a4a126f4be88eb8b5f00a165ab58c35edf4ef76 ]

If the driver has lost contact with the PF then it enters a disabled state
and frees adapter->vf_res. However, ndo_fix_features can still be called on
the interface, so we need to check for this condition first. Since we have
no information on the features at this time simply leave them unmodified
and return.

Fixes: c4445aedfe09 ("i40evf: Fix VLAN features")
Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index f06c079e812ec..ef0103a216d1e 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -3419,7 +3419,8 @@ static netdev_features_t iavf_fix_features(struct net_device *netdev,
 {
 	struct iavf_adapter *adapter = netdev_priv(netdev);
 
-	if (!(adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN))
+	if (adapter->vf_res &&
+	    !(adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN))
 		features &= ~(NETIF_F_HW_VLAN_CTAG_TX |
 			      NETIF_F_HW_VLAN_CTAG_RX |
 			      NETIF_F_HW_VLAN_CTAG_FILTER);
-- 
GitLab


From 78638b47132244e3934dc5dc79f6372d5ce8e98c Mon Sep 17 00:00:00 2001
From: Nicholas Nunley <nicholas.d.nunley@intel.com>
Date: Fri, 4 Jun 2021 09:48:54 -0700
Subject: [PATCH 1614/4878] iavf: free q_vectors before queues in
 iavf_disable_vf

[ Upstream commit 89f22f129696ab53cfbc608e0a2184d0fea46ac1 ]

iavf_free_queues() clears adapter->num_active_queues, which
iavf_free_q_vectors() relies on, so swap the order of these two function
calls in iavf_disable_vf(). This resolves a panic encountered when the
interface is disabled and then later brought up again after PF
communication is restored.

Fixes: 65c7006f234c ("i40evf: assign num_active_queues inside i40evf_alloc_queues")
Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index ef0103a216d1e..3e4bf3559d13b 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2047,8 +2047,8 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
 
 	iavf_free_misc_irq(adapter);
 	iavf_reset_interrupt_capability(adapter);
-	iavf_free_queues(adapter);
 	iavf_free_q_vectors(adapter);
+	iavf_free_queues(adapter);
 	memset(adapter->vf_res, 0, IAVF_VIRTCHNL_VF_RESOURCE_SIZE);
 	iavf_shutdown_adminq(&adapter->hw);
 	adapter->netdev->flags &= ~IFF_UP;
-- 
GitLab


From a420b261282532b4299accaca4a0423630abf461 Mon Sep 17 00:00:00 2001
From: Piotr Marczak <piotr.marczak@intel.com>
Date: Fri, 4 Jun 2021 09:48:56 -0700
Subject: [PATCH 1615/4878] iavf: Fix failure to exit out from last
 all-multicast mode

[ Upstream commit 8905072a192fffe9389255489db250c73ecab008 ]

The driver could only quit allmulti when allmulti and promisc modes are
turn on at the same time. If promisc had been off there was no way to turn
off allmulti mode.
The patch corrects this behavior. Switching allmulti does not depends on
promisc state mode anymore

Fixes: f42a5c74da99 ("i40e: Add allmulti support for the VF")
Signed-off-by: Piotr Marczak <piotr.marczak@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 3e4bf3559d13b..b0fe5aafd1b26 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -1616,8 +1616,7 @@ static int iavf_process_aq_command(struct iavf_adapter *adapter)
 		iavf_set_promiscuous(adapter, FLAG_VF_MULTICAST_PROMISC);
 		return 0;
 	}
-
-	if ((adapter->aq_required & IAVF_FLAG_AQ_RELEASE_PROMISC) &&
+	if ((adapter->aq_required & IAVF_FLAG_AQ_RELEASE_PROMISC) ||
 	    (adapter->aq_required & IAVF_FLAG_AQ_RELEASE_ALLMULTI)) {
 		iavf_set_promiscuous(adapter, 0);
 		return 0;
-- 
GitLab


From ddcc185baa2b8bbb7af2d39a4ba1ce8bc54a38e5 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 4 Jun 2021 09:48:57 -0700
Subject: [PATCH 1616/4878] iavf: prevent accidental free of filter structure

[ Upstream commit 4f0400803818f2642f066d3eacaf013f23554cc7 ]

In iavf_config_clsflower, the filter structure could be accidentally
released at the end, if iavf_parse_cls_flower or iavf_handle_tclass ever
return a non-zero but positive value.

In this case, the function continues through to the end, and will call
kfree() on the filter structure even though it has been added to the
linked list.

This can actually happen because iavf_parse_cls_flower will return
a positive IAVF_ERR_CONFIG value instead of the traditional negative
error codes.

Fix this by ensuring that the kfree() check and error checks are
similar. Use the more idiomatic "if (err)" to catch all non-zero error
codes.

Fixes: 0075fa0fadd0 ("i40evf: Add support to apply cloud filters")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index b0fe5aafd1b26..90a9379b4e467 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -3027,11 +3027,11 @@ static int iavf_configure_clsflower(struct iavf_adapter *adapter,
 	/* start out with flow type and eth type IPv4 to begin with */
 	filter->f.flow_type = VIRTCHNL_TCP_V4_FLOW;
 	err = iavf_parse_cls_flower(adapter, cls_flower, filter);
-	if (err < 0)
+	if (err)
 		goto err;
 
 	err = iavf_handle_tclass(adapter, tc, filter);
-	if (err < 0)
+	if (err)
 		goto err;
 
 	/* add filter to the list */
-- 
GitLab


From 77f5ae5441f0d739c7e1780f309088143252a6ef Mon Sep 17 00:00:00 2001
From: Mitch Williams <mitch.a.williams@intel.com>
Date: Fri, 4 Jun 2021 09:48:58 -0700
Subject: [PATCH 1617/4878] iavf: validate pointers

[ Upstream commit 131b0edc4028bb88bb472456b1ddba526cfb7036 ]

In some cases, the ethtool get_rxfh handler may be called with a null
key or indir parameter. So check these pointers, or you will have a very
bad day.

Fixes: 43a3d9ba34c9 ("i40evf: Allow PF driver to configure RSS")
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index 17ec36c4e6c19..5508ccbf9f57b 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -975,14 +975,13 @@ static int iavf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
 
 	if (hfunc)
 		*hfunc = ETH_RSS_HASH_TOP;
-	if (!indir)
-		return 0;
-
-	memcpy(key, adapter->rss_key, adapter->rss_key_size);
+	if (key)
+		memcpy(key, adapter->rss_key, adapter->rss_key_size);
 
-	/* Each 32 bits pointed by 'indir' is stored with a lut entry */
-	for (i = 0; i < adapter->rss_lut_size; i++)
-		indir[i] = (u32)adapter->rss_lut[i];
+	if (indir)
+		/* Each 32 bits pointed by 'indir' is stored with a lut entry */
+		for (i = 0; i < adapter->rss_lut_size; i++)
+			indir[i] = (u32)adapter->rss_lut[i];
 
 	return 0;
 }
-- 
GitLab


From a8a1e601c2ea94e145f2bf23e65fc7bb1e5a4c68 Mon Sep 17 00:00:00 2001
From: Surabhi Boob <surabhi.boob@intel.com>
Date: Fri, 4 Jun 2021 09:48:59 -0700
Subject: [PATCH 1618/4878] iavf: Fix for the false positive ASQ/ARQ errors
 while issuing VF reset

[ Upstream commit 321421b57a12e933f92b228e0e6d0b2c6541f41d ]

While issuing VF Reset from the guest OS, the VF driver prints
logs about critical / Overflow error detection. This is not an
actual error since the VF_MBX_ARQLEN register is set to all FF's
for a short period of time and the VF would catch the bits set if
it was reading the register during that spike of time.
This patch introduces an additional check to ignore this condition
since the VF is in reset.

Fixes: 19b73d8efaa4 ("i40evf: Add additional check for reset")
Signed-off-by: Surabhi Boob <surabhi.boob@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 90a9379b4e467..643679cad8657 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2329,7 +2329,7 @@ static void iavf_adminq_task(struct work_struct *work)
 
 	/* check for error indications */
 	val = rd32(hw, hw->aq.arq.len);
-	if (val == 0xdeadbeef) /* indicates device in reset */
+	if (val == 0xdeadbeef || val == 0xffffffff) /* device in reset */
 		goto freedom;
 	oldval = val;
 	if (val & IAVF_VF_ARQLEN1_ARQVFE_MASK) {
-- 
GitLab


From a61f90b2162d0378db55f2234cb53c1af4bcb7f0 Mon Sep 17 00:00:00 2001
From: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Date: Fri, 4 Jun 2021 09:49:00 -0700
Subject: [PATCH 1619/4878] iavf: Fix for setting queues to 0

[ Upstream commit 9a6e9e483a9684a34573fd9f9e30ecfb047cb8cb ]

Now setting combine to 0 will be rejected with the
appropriate error code.
This has been implemented by adding a condition that checks
the value of combine equal to zero.
Without this patch, when the user requested it, no error was
returned and combine was set to the default value for VF.

Fixes: 5520deb15326 ("iavf: Enable support for up to 16 queues")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index 5508ccbf9f57b..ea85b06857fa2 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -903,7 +903,7 @@ static int iavf_set_channels(struct net_device *netdev,
 	/* All of these should have already been checked by ethtool before this
 	 * even gets to us, but just to be sure.
 	 */
-	if (num_req > adapter->vsi_res->num_queue_pairs)
+	if (num_req == 0 || num_req > adapter->vsi_res->num_queue_pairs)
 		return -EINVAL;
 
 	if (num_req == adapter->num_active_queues)
-- 
GitLab


From 34284b3a2f869473b7ae7268d37480b07428bb20 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@googlemail.com>
Date: Wed, 10 Nov 2021 23:28:24 +0000
Subject: [PATCH 1620/4878] MIPS: generic/yamon-dt: fix uninitialized variable
 error

[ Upstream commit 255e51da15baed47531beefd02f222e4dc01f1c1 ]

In the case where fw_getenv returns an error when fetching values
for ememsizea and memsize then variable phys_memsize is not assigned
a variable and will be uninitialized on a zero check of phys_memsize.
Fix this by initializing phys_memsize to zero.

Cleans up cppcheck error:
arch/mips/generic/yamon-dt.c:100:7: error: Uninitialized variable: phys_memsize [uninitvar]

Fixes: f41d2430bbd6 ("MIPS: generic/yamon-dt: Support > 256MB of RAM")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/generic/yamon-dt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c
index a3aa22c77cadc..a07a5edbcda78 100644
--- a/arch/mips/generic/yamon-dt.c
+++ b/arch/mips/generic/yamon-dt.c
@@ -75,7 +75,7 @@ static unsigned int __init gen_fdt_mem_array(
 __init int yamon_dt_append_memory(void *fdt,
 				  const struct yamon_mem_region *regions)
 {
-	unsigned long phys_memsize, memsize;
+	unsigned long phys_memsize = 0, memsize;
 	__be32 mem_array[2 * MAX_MEM_ARRAY_ENTRIES];
 	unsigned int mem_entries;
 	int i, err, mem_off;
-- 
GitLab


From 17dfbe1b2f4ea2babc2b2807dc28ad2ba6fe7971 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 14 Nov 2021 16:42:18 -0800
Subject: [PATCH 1621/4878] mips: bcm63xx: add support for clk_get_parent()

[ Upstream commit e8f67482e5a4bc8d0b65d606d08cb60ee123b468 ]

BCM63XX selects HAVE_LEGACY_CLK but does not provide/support
clk_get_parent(), so add a simple implementation of that
function so that callers of it will build without errors.

Fixes these build errors:

mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4770_adc_init_clk_div':
ingenic-adc.c:(.text+0xe4): undefined reference to `clk_get_parent'
mips-linux-ld: drivers/iio/adc/ingenic-adc.o: in function `jz4725b_adc_init_clk_div':
ingenic-adc.c:(.text+0x1b8): undefined reference to `clk_get_parent'

Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs." )
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Cc: Artur Rojek <contact@artur-rojek.eu>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: linux-mips@vger.kernel.org
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-iio@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/bcm63xx/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index 164115944a7fd..aba6e2d6a736c 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -381,6 +381,12 @@ void clk_disable(struct clk *clk)
 
 EXPORT_SYMBOL(clk_disable);
 
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 unsigned long clk_get_rate(struct clk *clk)
 {
 	if (!clk)
-- 
GitLab


From da16f907cb30f3db2d2bff76f71d5db9dc6575a5 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 14 Nov 2021 17:20:51 -0800
Subject: [PATCH 1622/4878] mips: lantiq: add support for clk_get_parent()

[ Upstream commit fc1aabb088860d6cf9dd03612b7a6f0de91ccac2 ]

Provide a simple implementation of clk_get_parent() in the
lantiq subarch so that callers of it will build without errors.

Fixes this build error:
ERROR: modpost: "clk_get_parent" [drivers/iio/adc/ingenic-adc.ko] undefined!

Fixes: 171bb2f19ed6 ("MIPS: Lantiq: Add initial support for Lantiq SoCs")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Cc: linux-mips@vger.kernel.org
Cc: John Crispin <john@phrozen.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: John Crispin <john@phrozen.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/lantiq/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index dd819e31fcbbf..4916cccf378fd 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -158,6 +158,12 @@ void clk_deactivate(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_deactivate);
 
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(clk_get_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;
-- 
GitLab


From d1f8f1e04a61f1e212ed294a0a7058a362063789 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sun, 7 Nov 2021 20:57:07 +0100
Subject: [PATCH 1623/4878] platform/x86: hp_accel: Fix an error handling path
 in 'lis3lv02d_probe()'

[ Upstream commit c961a7d2aa23ae19e0099fbcdf1040fb760eea83 ]

If 'led_classdev_register()' fails, some additional resources should be
released.

Add the missing 'i8042_remove_filter()' and 'lis3lv02d_remove_fs()' calls
that are already in the remove function but are missing here.

Fixes: a4c724d0723b ("platform: hp_accel: add a i8042 filter to remove HPQ6000 data from kb bus stream")
Fixes: 9e0c79782143 ("lis3lv02d: merge with leds hp disk")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/5a4f218f8f16d2e3a7906b7ca3654ffa946895f8.1636314074.git.christophe.jaillet@wanadoo.fr
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/hp_accel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index 8c0867bda8280..0dfaa1a43b674 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -372,9 +372,11 @@ static int lis3lv02d_add(struct acpi_device *device)
 	INIT_WORK(&hpled_led.work, delayed_set_status_worker);
 	ret = led_classdev_register(NULL, &hpled_led.led_classdev);
 	if (ret) {
+		i8042_remove_filter(hp_accel_i8042_filter);
 		lis3lv02d_joystick_disable(&lis3_dev);
 		lis3lv02d_poweroff(&lis3_dev);
 		flush_work(&hpled_led.work);
+		lis3lv02d_remove_fs(&lis3_dev);
 		return ret;
 	}
 
-- 
GitLab


From 471c492890557bd58f73314bb4ad85d5a8fd5026 Mon Sep 17 00:00:00 2001
From: Valentine Fatiev <valentinef@nvidia.com>
Date: Tue, 26 Oct 2021 11:42:41 +0300
Subject: [PATCH 1624/4878] net/mlx5e: nullify cq->dbg pointer in
 mlx5_debug_cq_remove()

[ Upstream commit 76ded29d3fcda4928da8849ffc446ea46871c1c2 ]

Prior to this patch in case mlx5_core_destroy_cq() failed it proceeds
to rest of destroy operations. mlx5_core_destroy_cq() could be called again
by user and cause additional call of mlx5_debug_cq_remove().
cq->dbg was not nullify in previous call and cause the crash.

Fix it by nullify cq->dbg pointer after removal.

Also proceed to destroy operations only if FW return 0
for MLX5_CMD_OP_DESTROY_CQ command.

general protection fault, probably for non-canonical address 0x2000300004058: 0000 [#1] SMP PTI
CPU: 5 PID: 1228 Comm: python Not tainted 5.15.0-rc5_for_upstream_min_debug_2021_10_14_11_06 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:lockref_get+0x1/0x60
Code: 5d e9 53 ff ff ff 48 8d 7f 70 e8 0a 2e 48 00 c7 85 d0 00 00 00 02
00 00 00 c6 45 70 00 fb 5d c3 c3 cc cc cc cc cc cc cc cc 53 <48> 8b 17
48 89 fb 85 d2 75 3d 48 89 d0 bf 64 00 00 00 48 89 c1 48
RSP: 0018:ffff888137dd7a38 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff888107d5f458 RCX: 00000000fffffffe
RDX: 000000000002c2b0 RSI: ffffffff8155e2e0 RDI: 0002000300004058
RBP: ffff888137dd7a88 R08: 0002000300004058 R09: ffff8881144a9f88
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881141d4000
R13: ffff888137dd7c68 R14: ffff888137dd7d58 R15: ffff888137dd7cc0
FS:  00007f4644f2a4c0(0000) GS:ffff8887a2d40000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b4500f4380 CR3: 0000000114f7a003 CR4: 0000000000170ea0
Call Trace:
  simple_recursive_removal+0x33/0x2e0
  ? debugfs_remove+0x60/0x60
  debugfs_remove+0x40/0x60
  mlx5_debug_cq_remove+0x32/0x70 [mlx5_core]
  mlx5_core_destroy_cq+0x41/0x1d0 [mlx5_core]
  devx_obj_cleanup+0x151/0x330 [mlx5_ib]
  ? __pollwait+0xd0/0xd0
  ? xas_load+0x5/0x70
  ? xa_load+0x62/0xa0
  destroy_hw_idr_uobject+0x20/0x80 [ib_uverbs]
  uverbs_destroy_uobject+0x3b/0x360 [ib_uverbs]
  uobj_destroy+0x54/0xa0 [ib_uverbs]
  ib_uverbs_cmd_verbs+0xaf2/0x1160 [ib_uverbs]
  ? uverbs_finalize_object+0xd0/0xd0 [ib_uverbs]
  ib_uverbs_ioctl+0xc4/0x1b0 [ib_uverbs]
  __x64_sys_ioctl+0x3e4/0x8e0

Fixes: 94b960b9deff ("net/mlx5e: Fix memory leak in mlx5_core_destroy_cq() error path")
Signed-off-by: Valentine Fatiev <valentinef@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/cq.c      | 5 +++--
 drivers/net/ethernet/mellanox/mlx5/core/debugfs.c | 4 +++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cq.c b/drivers/net/ethernet/mellanox/mlx5/core/cq.c
index c74600be570ed..68d7ca17b6f51 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cq.c
@@ -163,13 +163,14 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq)
 	MLX5_SET(destroy_cq_in, in, cqn, cq->cqn);
 	MLX5_SET(destroy_cq_in, in, uid, cq->uid);
 	err = mlx5_cmd_exec_in(dev, destroy_cq, in);
+	if (err)
+		return err;
 
 	synchronize_irq(cq->irqn);
-
 	mlx5_cq_put(cq);
 	wait_for_completion(&cq->free);
 
-	return err;
+	return 0;
 }
 EXPORT_SYMBOL(mlx5_core_destroy_cq);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
index 07c8d9811bc81..10d195042ab55 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
@@ -507,6 +507,8 @@ void mlx5_debug_cq_remove(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq)
 	if (!mlx5_debugfs_root)
 		return;
 
-	if (cq->dbg)
+	if (cq->dbg) {
 		rem_res_tree(cq->dbg);
+		cq->dbg = NULL;
+	}
 }
-- 
GitLab


From 6190e1a2d41aa7fdf6d38b24d5ca4baaa0412fd9 Mon Sep 17 00:00:00 2001
From: Maher Sanalla <msanalla@nvidia.com>
Date: Fri, 5 Nov 2021 11:19:48 +0200
Subject: [PATCH 1625/4878] net/mlx5: Lag, update tracker when state change
 event received

[ Upstream commit ae396d85c01c7bdc9eeceecde1f493d03f793465 ]

Currently, In NETDEV_CHANGELOWERSTATE/NETDEV_CHANGEUPPERSTATE events
handling, tracking is not fully completed if the LAG device is not ready
at the time the events occur. But, we must keep track of the upper and
lower states after receiving the events because RoCE needs this info in
mlx5_lag_get_roce_netdev() - in order to return the corresponding port
that its running on. Returning the wrong (not most recent) port will lead
to gids table being incorrect.

For example: If during the attachment of a slave to the bond, the other
non-attached port performs pci_reload, then the LAG device is not ready,
but that should not result in dismissing attached slave tracker update
automatically (which is performed in mlx5_handle_changelowerstate()), Since
these events might not come later, which can lead to both bond ports
having tx_enabled=0 - which is not a valid state of LAG bond.

Fixes: 9b412cc35f00 ("net/mlx5e: Add LAG warning if bond slave is not lag master")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag.c | 28 +++++++++----------
 1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
index fe5476a76464f..11cc3ea5010aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
@@ -365,6 +365,7 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
 	bool is_bonded, is_in_lag, mode_supported;
 	int bond_status = 0;
 	int num_slaves = 0;
+	int changed = 0;
 	int idx;
 
 	if (!netif_is_lag_master(upper))
@@ -401,27 +402,27 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
 	 */
 	is_in_lag = num_slaves == MLX5_MAX_PORTS && bond_status == 0x3;
 
-	if (!mlx5_lag_is_ready(ldev) && is_in_lag) {
-		NL_SET_ERR_MSG_MOD(info->info.extack,
-				   "Can't activate LAG offload, PF is configured with more than 64 VFs");
-		return 0;
-	}
-
 	/* Lag mode must be activebackup or hash. */
 	mode_supported = tracker->tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP ||
 			 tracker->tx_type == NETDEV_LAG_TX_TYPE_HASH;
 
-	if (is_in_lag && !mode_supported)
-		NL_SET_ERR_MSG_MOD(info->info.extack,
-				   "Can't activate LAG offload, TX type isn't supported");
-
 	is_bonded = is_in_lag && mode_supported;
 	if (tracker->is_bonded != is_bonded) {
 		tracker->is_bonded = is_bonded;
-		return 1;
+		changed = 1;
 	}
 
-	return 0;
+	if (!is_in_lag)
+		return changed;
+
+	if (!mlx5_lag_is_ready(ldev))
+		NL_SET_ERR_MSG_MOD(info->info.extack,
+				   "Can't activate LAG offload, PF is configured with more than 64 VFs");
+	else if (!mode_supported)
+		NL_SET_ERR_MSG_MOD(info->info.extack,
+				   "Can't activate LAG offload, TX type isn't supported");
+
+	return changed;
 }
 
 static int mlx5_handle_changelowerstate_event(struct mlx5_lag *ldev,
@@ -464,9 +465,6 @@ static int mlx5_lag_netdev_event(struct notifier_block *this,
 
 	ldev    = container_of(this, struct mlx5_lag, nb);
 
-	if (!mlx5_lag_is_ready(ldev) && event == NETDEV_CHANGELOWERSTATE)
-		return NOTIFY_DONE;
-
 	tracker = ldev->tracker;
 
 	switch (event) {
-- 
GitLab


From 68748ea4d1225da644fa91263e4e019f4c72ddb7 Mon Sep 17 00:00:00 2001
From: Roi Dayan <roid@nvidia.com>
Date: Wed, 16 Sep 2020 10:11:42 +0300
Subject: [PATCH 1626/4878] net/mlx5: E-Switch, Change mode lock from mutex to
 rw semaphore

[ Upstream commit c55479d0cb6a28029844d0e90730704a0fb5efd3 ]

E-Switch mode change routine will take the write lock to prevent any
consumer to access the E-Switch resources while E-Switch is going
through a mode change.

In the next patch
E-Switch consumers (e.g vport representors) will take read_lock prior to
accessing E-Switch resources to prevent E-Switch mode changing in the
middle of the operation.

Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlx5/core/eswitch.c | 11 ++++----
 .../net/ethernet/mellanox/mlx5/core/eswitch.h |  2 +-
 .../mellanox/mlx5/core/eswitch_offloads.c     | 26 +++++++++----------
 3 files changed, 19 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 401b2f5128dd4..78cc6f0bbc72b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1663,7 +1663,7 @@ int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs)
 	if (!ESW_ALLOWED(esw))
 		return 0;
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	if (esw->mode == MLX5_ESWITCH_NONE) {
 		ret = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_LEGACY, num_vfs);
 	} else {
@@ -1675,7 +1675,7 @@ int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs)
 		if (!ret)
 			esw->esw_funcs.num_vfs = num_vfs;
 	}
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return ret;
 }
 
@@ -1719,10 +1719,10 @@ void mlx5_eswitch_disable(struct mlx5_eswitch *esw, bool clear_vf)
 	if (!ESW_ALLOWED(esw))
 		return;
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	mlx5_eswitch_disable_locked(esw, clear_vf);
 	esw->esw_funcs.num_vfs = 0;
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 }
 
 int mlx5_eswitch_init(struct mlx5_core_dev *dev)
@@ -1778,7 +1778,7 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
 	atomic64_set(&esw->offloads.num_flows, 0);
 	ida_init(&esw->offloads.vport_metadata_ida);
 	mutex_init(&esw->state_lock);
-	mutex_init(&esw->mode_lock);
+	init_rwsem(&esw->mode_lock);
 
 	mlx5_esw_for_all_vports(esw, i, vport) {
 		vport->vport = mlx5_eswitch_index_to_vport_num(esw, i);
@@ -1813,7 +1813,6 @@ void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
 	esw->dev->priv.eswitch = NULL;
 	destroy_workqueue(esw->work_queue);
 	esw_offloads_cleanup_reps(esw);
-	mutex_destroy(&esw->mode_lock);
 	mutex_destroy(&esw->state_lock);
 	ida_destroy(&esw->offloads.vport_metadata_ida);
 	mlx5e_mod_hdr_tbl_destroy(&esw->offloads.mod_hdr);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index cf87de94418ff..59c674f157a8c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -262,7 +262,7 @@ struct mlx5_eswitch {
 	/* Protects eswitch mode change that occurs via one or more
 	 * user commands, i.e. sriov state change, devlink commands.
 	 */
-	struct mutex mode_lock;
+	struct rw_semaphore mode_lock;
 
 	struct {
 		bool            enabled;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 5801f55ff0771..164e8cd9ad4ad 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2508,7 +2508,7 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 	if (esw_mode_from_devlink(mode, &mlx5_mode))
 		return -EINVAL;
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	cur_mlx5_mode = esw->mode;
 	if (cur_mlx5_mode == mlx5_mode)
 		goto unlock;
@@ -2521,7 +2521,7 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 		err = -EINVAL;
 
 unlock:
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return err;
 }
 
@@ -2534,14 +2534,14 @@ int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
 	if (IS_ERR(esw))
 		return PTR_ERR(esw);
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	err = eswitch_devlink_esw_mode_check(esw);
 	if (err)
 		goto unlock;
 
 	err = esw_mode_to_devlink(esw->mode, mode);
 unlock:
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return err;
 }
 
@@ -2557,7 +2557,7 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
 	if (IS_ERR(esw))
 		return PTR_ERR(esw);
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	err = eswitch_devlink_esw_mode_check(esw);
 	if (err)
 		goto out;
@@ -2599,7 +2599,7 @@ int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
 	}
 
 	esw->offloads.inline_mode = mlx5_mode;
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return 0;
 
 revert_inline_mode:
@@ -2609,7 +2609,7 @@ revert_inline_mode:
 						 vport,
 						 esw->offloads.inline_mode);
 out:
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return err;
 }
 
@@ -2622,14 +2622,14 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode)
 	if (IS_ERR(esw))
 		return PTR_ERR(esw);
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	err = eswitch_devlink_esw_mode_check(esw);
 	if (err)
 		goto unlock;
 
 	err = esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode);
 unlock:
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return err;
 }
 
@@ -2645,7 +2645,7 @@ int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
 	if (IS_ERR(esw))
 		return PTR_ERR(esw);
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	err = eswitch_devlink_esw_mode_check(esw);
 	if (err)
 		goto unlock;
@@ -2691,7 +2691,7 @@ int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
 	}
 
 unlock:
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return err;
 }
 
@@ -2706,14 +2706,14 @@ int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink,
 		return PTR_ERR(esw);
 
 
-	mutex_lock(&esw->mode_lock);
+	down_write(&esw->mode_lock);
 	err = eswitch_devlink_esw_mode_check(esw);
 	if (err)
 		goto unlock;
 
 	*encap = esw->offloads.encap;
 unlock:
-	mutex_unlock(&esw->mode_lock);
+	up_write(&esw->mode_lock);
 	return 0;
 }
 
-- 
GitLab


From 4b4302a02b7f734260856b9c3607fb78d35ba018 Mon Sep 17 00:00:00 2001
From: Raed Salem <raeds@nvidia.com>
Date: Mon, 1 Nov 2021 16:18:53 +0200
Subject: [PATCH 1627/4878] net/mlx5: E-Switch, return error if encap isn't
 supported

[ Upstream commit c4c3176739dfa6efcc5b1d1de4b3fd2b51b048c7 ]

On regular ConnectX HCAs getting encap mode isn't supported when the
E-Switch is in NONE mode. Current code would return no error code when
trying to get encap mode in such case which is wrong.

Fix by returning error value to indicate failure to caller in such case.

Fixes: 8e0aa4bc959c ("net/mlx5: E-switch, Protect eswitch mode changes")
Signed-off-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 164e8cd9ad4ad..e06b1ba7d2349 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2714,7 +2714,7 @@ int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink,
 	*encap = esw->offloads.encap;
 unlock:
 	up_write(&esw->mode_lock);
-	return 0;
+	return err;
 }
 
 static bool
-- 
GitLab


From a792e0128d232251edb5fdf42fb0f9fbb0b44a73 Mon Sep 17 00:00:00 2001
From: Mike Christie <michael.christie@oracle.com>
Date: Fri, 5 Nov 2021 17:10:48 -0500
Subject: [PATCH 1628/4878] scsi: core: sysfs: Fix hang when device state is
 set via sysfs

[ Upstream commit 4edd8cd4e86dd3047e5294bbefcc0a08f66a430f ]

This fixes a regression added with:

commit f0f82e2476f6 ("scsi: core: Fix capacity set to zero after
offlinining device")

The problem is that after iSCSI recovery, iscsid will call into the kernel
to set the dev's state to running, and with that patch we now call
scsi_rescan_device() with the state_mutex held. If the SCSI error handler
thread is just starting to test the device in scsi_send_eh_cmnd() then it's
going to try to grab the state_mutex.

We are then stuck, because when scsi_rescan_device() tries to send its I/O
scsi_queue_rq() calls -> scsi_host_queue_ready() -> scsi_host_in_recovery()
which will return true (the host state is still in recovery) and I/O will
just be requeued. scsi_send_eh_cmnd() will then never be able to grab the
state_mutex to finish error handling.

To prevent the deadlock move the rescan-related code to after we drop the
state_mutex.

This also adds a check for if we are already in the running state. This
prevents extra scans and helps the iscsid case where if the transport class
has already onlined the device during its recovery process then we don't
need userspace to do it again plus possibly block that daemon.

Link: https://lore.kernel.org/r/20211105221048.6541-3-michael.christie@oracle.com
Fixes: f0f82e2476f6 ("scsi: core: Fix capacity set to zero after offlinining device")
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: lijinlin <lijinlin3@huawei.com>
Cc: Wu Bo <wubo40@huawei.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_sysfs.c | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 1378bb1a7371c..8de67679a8782 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -796,6 +796,7 @@ store_state_field(struct device *dev, struct device_attribute *attr,
 	int i, ret;
 	struct scsi_device *sdev = to_scsi_device(dev);
 	enum scsi_device_state state = 0;
+	bool rescan_dev = false;
 
 	for (i = 0; i < ARRAY_SIZE(sdev_states); i++) {
 		const int len = strlen(sdev_states[i].name);
@@ -814,20 +815,27 @@ store_state_field(struct device *dev, struct device_attribute *attr,
 	}
 
 	mutex_lock(&sdev->state_mutex);
-	ret = scsi_device_set_state(sdev, state);
-	/*
-	 * If the device state changes to SDEV_RUNNING, we need to
-	 * run the queue to avoid I/O hang, and rescan the device
-	 * to revalidate it. Running the queue first is necessary
-	 * because another thread may be waiting inside
-	 * blk_mq_freeze_queue_wait() and because that call may be
-	 * waiting for pending I/O to finish.
-	 */
-	if (ret == 0 && state == SDEV_RUNNING) {
+	if (sdev->sdev_state == SDEV_RUNNING && state == SDEV_RUNNING) {
+		ret = count;
+	} else {
+		ret = scsi_device_set_state(sdev, state);
+		if (ret == 0 && state == SDEV_RUNNING)
+			rescan_dev = true;
+	}
+	mutex_unlock(&sdev->state_mutex);
+
+	if (rescan_dev) {
+		/*
+		 * If the device state changes to SDEV_RUNNING, we need to
+		 * run the queue to avoid I/O hang, and rescan the device
+		 * to revalidate it. Running the queue first is necessary
+		 * because another thread may be waiting inside
+		 * blk_mq_freeze_queue_wait() and because that call may be
+		 * waiting for pending I/O to finish.
+		 */
 		blk_mq_run_hw_queues(sdev->request_queue, true);
 		scsi_rescan_device(dev);
 	}
-	mutex_unlock(&sdev->state_mutex);
 
 	return ret == 0 ? count : -EINVAL;
 }
-- 
GitLab


From 381a30f7e31c473ae941eb78c4a0325abf4f2951 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Fri, 12 Nov 2021 11:33:11 -0500
Subject: [PATCH 1629/4878] net: sched: act_mirred: drop dst for the direction
 from egress to ingress

[ Upstream commit f799ada6bf2397c351220088b9b0980125c77280 ]

Without dropping dst, the packets sent from local mirred/redirected
to ingress will may still use the old dst. ip_rcv() will drop it as
the old dst is for output and its .input is dst_discard.

This patch is to fix by also dropping dst for those packets that are
mirred or redirected from egress to ingress in act_mirred.

Note that we don't drop it for the direction change from ingress to
egress, as on which there might be a user case attaching a metadata
dst by act_tunnel_key that would be used later.

Fixes: b57dc7c13ea9 ("net/sched: Introduce action ct")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/act_mirred.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 0b0eb18919c09..24d561d8d9c97 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -19,6 +19,7 @@
 #include <linux/if_arp.h>
 #include <net/net_namespace.h>
 #include <net/netlink.h>
+#include <net/dst.h>
 #include <net/pkt_sched.h>
 #include <net/pkt_cls.h>
 #include <linux/tc_act/tc_mirred.h>
@@ -218,6 +219,7 @@ static int tcf_mirred_act(struct sk_buff *skb, const struct tc_action *a,
 	bool want_ingress;
 	bool is_redirect;
 	bool expects_nh;
+	bool at_ingress;
 	int m_eaction;
 	int mac_len;
 	bool at_nh;
@@ -253,7 +255,8 @@ static int tcf_mirred_act(struct sk_buff *skb, const struct tc_action *a,
 	 * ingress - that covers the TC S/W datapath.
 	 */
 	is_redirect = tcf_mirred_is_act_redirect(m_eaction);
-	use_reinsert = skb_at_tc_ingress(skb) && is_redirect &&
+	at_ingress = skb_at_tc_ingress(skb);
+	use_reinsert = at_ingress && is_redirect &&
 		       tcf_mirred_can_reinsert(retval);
 	if (!use_reinsert) {
 		skb2 = skb_clone(skb, GFP_ATOMIC);
@@ -261,10 +264,12 @@ static int tcf_mirred_act(struct sk_buff *skb, const struct tc_action *a,
 			goto out;
 	}
 
+	want_ingress = tcf_mirred_act_wants_ingress(m_eaction);
+
 	/* All mirred/redirected skbs should clear previous ct info */
 	nf_reset_ct(skb2);
-
-	want_ingress = tcf_mirred_act_wants_ingress(m_eaction);
+	if (want_ingress && !at_ingress) /* drop dst for egress -> ingress */
+		skb_dst_drop(skb2);
 
 	expects_nh = want_ingress || !m_mac_header_xmit;
 	at_nh = skb->data == skb_network_header(skb);
-- 
GitLab


From 1c4099dc0d6a01e76e4f7dd98e4b3e0d55d80ad9 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Tue, 16 Nov 2021 18:17:12 +0300
Subject: [PATCH 1630/4878] net: dpaa2-eth: fix use-after-free in
 dpaa2_eth_remove

[ Upstream commit 9b5a333272a48c2f8b30add7a874e46e8b26129c ]

Access to netdev after free_netdev() will cause use-after-free bug.
Move debug log before free_netdev() call to avoid it.

Fixes: 7472dd9f6499 ("staging: fsl-dpaa2/eth: Move print message")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index f91c67489e629..a4ef35216e2f7 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -4432,10 +4432,10 @@ static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
 
 	fsl_mc_portal_free(priv->mc_io);
 
-	free_netdev(net_dev);
-
 	dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name);
 
+	free_netdev(net_dev);
+
 	return 0;
 }
 
-- 
GitLab


From 8e6bae950da9dc2d2c6c18b1c6b206dc00dc8772 Mon Sep 17 00:00:00 2001
From: Jonathan Davies <jonathan.davies@nutanix.com>
Date: Tue, 16 Nov 2021 17:42:42 +0000
Subject: [PATCH 1631/4878] net: virtio_net_hdr_to_skb: count transport header
 in UFO

[ Upstream commit cf9acc90c80ecbee00334aa85d92f4e74014bcff ]

virtio_net_hdr_to_skb does not set the skb's gso_size and gso_type
correctly for UFO packets received via virtio-net that are a little over
the GSO size. This can lead to problems elsewhere in the networking
stack, e.g. ovs_vport_send dropping over-sized packets if gso_size is
not set.

This is due to the comparison

  if (skb->len - p_off > gso_size)

not properly accounting for the transport layer header.

p_off includes the size of the transport layer header (thlen), so
skb->len - p_off is the size of the TCP/UDP payload.

gso_size is read from the virtio-net header. For UFO, fragmentation
happens at the IP level so does not need to include the UDP header.

Hence the calculation could be comparing a TCP/UDP payload length with
an IP payload length, causing legitimate virtio-net packets to have
lack gso_type/gso_size information.

Example: a UDP packet with payload size 1473 has IP payload size 1481.
If the guest used UFO, it is not fragmented and the virtio-net header's
flags indicate that it is a GSO frame (VIRTIO_NET_HDR_GSO_UDP), with
gso_size = 1480 for an MTU of 1500.  skb->len will be 1515 and p_off
will be 42, so skb->len - p_off = 1473.  Hence the comparison fails, and
shinfo->gso_size and gso_type are not set as they should be.

Instead, add the UDP header length before comparing to gso_size when
using UFO. In this way, it is the size of the IP payload that is
compared to gso_size.

Fixes: 6dd912f82680 ("net: check untrusted gso_size at kernel entry")
Signed-off-by: Jonathan Davies <jonathan.davies@nutanix.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/virtio_net.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index b465f8f3e554f..04e87f4b9417c 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -120,10 +120,15 @@ retry:
 
 	if (hdr->gso_type != VIRTIO_NET_HDR_GSO_NONE) {
 		u16 gso_size = __virtio16_to_cpu(little_endian, hdr->gso_size);
+		unsigned int nh_off = p_off;
 		struct skb_shared_info *shinfo = skb_shinfo(skb);
 
+		/* UFO may not include transport header in gso_size. */
+		if (gso_type & SKB_GSO_UDP)
+			nh_off -= thlen;
+
 		/* Too small packets are not really GSO ones. */
-		if (skb->len - p_off > gso_size) {
+		if (skb->len - nh_off > gso_size) {
 			shinfo->gso_size = gso_size;
 			shinfo->gso_type = gso_type;
 
-- 
GitLab


From 0719488565878d05b5075e99af537f737f698f74 Mon Sep 17 00:00:00 2001
From: Eryk Rybak <eryk.roch.rybak@intel.com>
Date: Thu, 21 Jan 2021 16:17:22 +0000
Subject: [PATCH 1632/4878] i40e: Fix correct max_pkt_size on VF RX queue

[ Upstream commit 6afbd7b3c53cb7417189f476e99d431daccb85b0 ]

Setting VLAN port increasing RX queue max_pkt_size
by 4 bytes to take VLAN tag into account.
Trigger the VF reset when setting port VLAN for
VF to renegotiate its capabilities and reinitialize.

Fixes: ba4e003d29c1 ("i40e: don't hold spinlock while resetting VF")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Eryk Rybak <eryk.roch.rybak@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 53 ++++---------------
 1 file changed, 9 insertions(+), 44 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index a02167cce81e1..dacd1453b7311 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -621,14 +621,13 @@ static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
 				    u16 vsi_queue_id,
 				    struct virtchnl_rxq_info *info)
 {
+	u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
 	struct i40e_pf *pf = vf->pf;
+	struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
 	struct i40e_hw *hw = &pf->hw;
 	struct i40e_hmc_obj_rxq rx_ctx;
-	u16 pf_queue_id;
 	int ret = 0;
 
-	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
-
 	/* clear the context structure first */
 	memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
 
@@ -666,6 +665,10 @@ static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
 	}
 	rx_ctx.rxmax = info->max_pkt_size;
 
+	/* if port VLAN is configured increase the max packet size */
+	if (vsi->info.pvid)
+		rx_ctx.rxmax += VLAN_HLEN;
+
 	/* enable 32bytes desc always */
 	rx_ctx.dsize = 1;
 
@@ -4133,34 +4136,6 @@ error_param:
 	return ret;
 }
 
-/**
- * i40e_vsi_has_vlans - True if VSI has configured VLANs
- * @vsi: pointer to the vsi
- *
- * Check if a VSI has configured any VLANs. False if we have a port VLAN or if
- * we have no configured VLANs. Do not call while holding the
- * mac_filter_hash_lock.
- */
-static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi)
-{
-	bool have_vlans;
-
-	/* If we have a port VLAN, then the VSI cannot have any VLANs
-	 * configured, as all MAC/VLAN filters will be assigned to the PVID.
-	 */
-	if (vsi->info.pvid)
-		return false;
-
-	/* Since we don't have a PVID, we know that if the device is in VLAN
-	 * mode it must be because of a VLAN filter configured on this VSI.
-	 */
-	spin_lock_bh(&vsi->mac_filter_hash_lock);
-	have_vlans = i40e_is_vsi_in_vlan(vsi);
-	spin_unlock_bh(&vsi->mac_filter_hash_lock);
-
-	return have_vlans;
-}
-
 /**
  * i40e_ndo_set_vf_port_vlan
  * @netdev: network interface device structure
@@ -4217,19 +4192,9 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 		/* duplicate request, so just return success */
 		goto error_pvid;
 
-	if (i40e_vsi_has_vlans(vsi)) {
-		dev_err(&pf->pdev->dev,
-			"VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
-			vf_id);
-		/* Administrator Error - knock the VF offline until he does
-		 * the right thing by reconfiguring his network correctly
-		 * and then reloading the VF driver.
-		 */
-		i40e_vc_disable_vf(vf);
-		/* During reset the VF got a new VSI, so refresh the pointer. */
-		vsi = pf->vsi[vf->lan_vsi_idx];
-	}
-
+	i40e_vc_disable_vf(vf);
+	/* During reset the VF got a new VSI, so refresh a pointer. */
+	vsi = pf->vsi[vf->lan_vsi_idx];
 	/* Locked once because multiple functions below iterate list */
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
 
-- 
GitLab


From f866513ead4370402428ef724b03c3312295c178 Mon Sep 17 00:00:00 2001
From: Michal Maloszewski <michal.maloszewski@intel.com>
Date: Wed, 24 Feb 2021 12:07:48 +0000
Subject: [PATCH 1633/4878] i40e: Fix NULL ptr dereference on VSI filter sync

[ Upstream commit 37d9e304acd903a445df8208b8a13d707902dea6 ]

Remove the reason of null pointer dereference in sync VSI filters.
Added new I40E_VSI_RELEASING flag to signalize deleting and releasing
of VSI resources to sync this thread with sync filters subtask.
Without this patch it is possible to start update the VSI filter list
after VSI is removed, that's causing a kernel oops.

Fixes: 41c445ff0f48 ("i40e: main driver core")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Michal Maloszewski <michal.maloszewski@intel.com>
Reviewed-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Reviewed-by: Witold Fijalkowski <witoldx.fijalkowski@intel.com>
Reviewed-by: Jaroslaw Gawin <jaroslawx.gawin@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e.h      | 1 +
 drivers/net/ethernet/intel/i40e/i40e_main.c | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index fe1258778cbc4..1f31f503fa92b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -159,6 +159,7 @@ enum i40e_vsi_state_t {
 	__I40E_VSI_OVERFLOW_PROMISC,
 	__I40E_VSI_REINIT_REQUESTED,
 	__I40E_VSI_DOWN_REQUESTED,
+	__I40E_VSI_RELEASING,
 	/* This must be last as it determines the size of the BITMAP */
 	__I40E_VSI_STATE_SIZE__,
 };
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 52c2d6fdeb7a0..72405a0aabde7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2622,7 +2622,8 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf)
 
 	for (v = 0; v < pf->num_alloc_vsi; v++) {
 		if (pf->vsi[v] &&
-		    (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED)) {
+		    (pf->vsi[v]->flags & I40E_VSI_FLAG_FILTER_CHANGED) &&
+		    !test_bit(__I40E_VSI_RELEASING, pf->vsi[v]->state)) {
 			int ret = i40e_sync_vsi_filters(pf->vsi[v]);
 
 			if (ret) {
@@ -13308,7 +13309,7 @@ int i40e_vsi_release(struct i40e_vsi *vsi)
 		dev_info(&pf->pdev->dev, "Can't remove PF VSI\n");
 		return -ENODEV;
 	}
-
+	set_bit(__I40E_VSI_RELEASING, vsi->state);
 	uplink_seid = vsi->uplink_seid;
 	if (vsi->type != I40E_VSI_SRIOV) {
 		if (vsi->netdev_registered) {
-- 
GitLab


From 6d64743045caee14d9e99457cbc0233316fbfa75 Mon Sep 17 00:00:00 2001
From: Eryk Rybak <eryk.roch.rybak@intel.com>
Date: Fri, 23 Apr 2021 13:43:25 +0200
Subject: [PATCH 1634/4878] i40e: Fix changing previously set num_queue_pairs
 for PFs

[ Upstream commit d2a69fefd75683004ffe87166de5635b3267ee07 ]

Currently, the i40e_vsi_setup_queue_map is basing the count of queues in
TCs on a VSI's alloc_queue_pairs member which is not changed throughout
any user's action (for example via ethtool's set_channels callback).

This implies that vsi->tc_config.tc_info[n].qcount value that is given
to the kernel via netdev_set_tc_queue() that notifies about the count of
queues per particular traffic class is constant even if user has changed
the total count of queues.

This in turn caused the kernel warning after setting the queue count to
the lower value than the initial one:

$ ethtool -l ens801f0
Channel parameters for ens801f0:
Pre-set maximums:
RX:             0
TX:             0
Other:          1
Combined:       64
Current hardware settings:
RX:             0
TX:             0
Other:          1
Combined:       64

$ ethtool -L ens801f0 combined 40

[dmesg]
Number of in use tx queues changed invalidating tc mappings. Priority
traffic classification disabled!

Reason was that vsi->alloc_queue_pairs stayed at 64 value which was used
to set the qcount on TC0 (by default only TC0 exists so all of the
existing queues are assigned to TC0). we update the offset/qcount via
netdev_set_tc_queue() back to the old value but then the
netif_set_real_num_tx_queues() is using the vsi->num_queue_pairs as a
value which got set to 40.

Fix it by using vsi->req_queue_pairs as a queue count that will be
distributed across TCs. Do it only for non-zero values, which implies
that user actually requested the new count of queues.

For VSIs other than main, stay with the vsi->alloc_queue_pairs as we
only allow manipulating the queue count on main VSI.

Fixes: bc6d33c8d93f ("i40e: Fix the number of queues available to be mapped for use")
Co-developed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Co-developed-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Eryk Rybak <eryk.roch.rybak@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 35 ++++++++++++++-------
 1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 72405a0aabde7..48856dea512c8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1789,6 +1789,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 				     bool is_add)
 {
 	struct i40e_pf *pf = vsi->back;
+	u16 num_tc_qps = 0;
 	u16 sections = 0;
 	u8 netdev_tc = 0;
 	u16 numtc = 1;
@@ -1796,13 +1797,29 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 	u8 offset;
 	u16 qmap;
 	int i;
-	u16 num_tc_qps = 0;
 
 	sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID;
 	offset = 0;
 
+	if (vsi->type == I40E_VSI_MAIN) {
+		/* This code helps add more queue to the VSI if we have
+		 * more cores than RSS can support, the higher cores will
+		 * be served by ATR or other filters. Furthermore, the
+		 * non-zero req_queue_pairs says that user requested a new
+		 * queue count via ethtool's set_channels, so use this
+		 * value for queues distribution across traffic classes
+		 */
+		if (vsi->req_queue_pairs > 0)
+			vsi->num_queue_pairs = vsi->req_queue_pairs;
+		else if (pf->flags & I40E_FLAG_MSIX_ENABLED)
+			vsi->num_queue_pairs = pf->num_lan_msix;
+	}
+
 	/* Number of queues per enabled TC */
-	num_tc_qps = vsi->alloc_queue_pairs;
+	if (vsi->type == I40E_VSI_MAIN)
+		num_tc_qps = vsi->num_queue_pairs;
+	else
+		num_tc_qps = vsi->alloc_queue_pairs;
 	if (enabled_tc && (vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
 		/* Find numtc from enabled TC bitmap */
 		for (i = 0, numtc = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
@@ -1880,16 +1897,10 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 		}
 		ctxt->info.tc_mapping[i] = cpu_to_le16(qmap);
 	}
-
-	/* Set actual Tx/Rx queue pairs */
-	vsi->num_queue_pairs = offset;
-	if ((vsi->type == I40E_VSI_MAIN) && (numtc == 1)) {
-		if (vsi->req_queue_pairs > 0)
-			vsi->num_queue_pairs = vsi->req_queue_pairs;
-		else if (pf->flags & I40E_FLAG_MSIX_ENABLED)
-			vsi->num_queue_pairs = pf->num_lan_msix;
-	}
-
+	/* Do not change previously set num_queue_pairs for PFs */
+	if ((vsi->type == I40E_VSI_MAIN && numtc != 1) ||
+	    vsi->type != I40E_VSI_MAIN)
+		vsi->num_queue_pairs = offset;
 	/* Scheduler section valid can only be set for ADD VSI */
 	if (is_add) {
 		sections |= I40E_AQ_VSI_PROP_SCHED_VALID;
-- 
GitLab


From 20645482d159266f0c8d9f79fd89d1ffc2e3c99e Mon Sep 17 00:00:00 2001
From: Eryk Rybak <eryk.roch.rybak@intel.com>
Date: Fri, 23 Apr 2021 13:43:26 +0200
Subject: [PATCH 1635/4878] i40e: Fix ping is lost after configuring ADq on VF

[ Upstream commit 9e0a603cb7dce2a19d98116d42de84b6db26d716 ]

Properly reconfigure VF VSIs after VF request ADQ.
Created new function to update queue mapping and queue pairs per TC
with AQ update VSI. This sets proper RSS size on NIC.
VFs num_queue_pairs should not be changed during setup of queue maps.
Previously, VF main VSI in ADQ had configured too many queues and had
wrong RSS size, which lead to packets not being consumed and drops in
connectivity.

Fixes: bc6d33c8d93f ("i40e: Fix the number of queues available to be mapped for use")
Co-developed-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Eryk Rybak <eryk.roch.rybak@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e.h        |  1 +
 drivers/net/ethernet/intel/i40e/i40e_main.c   | 64 ++++++++++++++++++-
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 17 +++--
 3 files changed, 74 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 1f31f503fa92b..5b83d1bc0e74d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -1145,6 +1145,7 @@ void i40e_ptp_save_hw_time(struct i40e_pf *pf);
 void i40e_ptp_restore_hw_time(struct i40e_pf *pf);
 void i40e_ptp_init(struct i40e_pf *pf);
 void i40e_ptp_stop(struct i40e_pf *pf);
+int i40e_update_adq_vsi_queues(struct i40e_vsi *vsi, int vsi_offset);
 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
 i40e_status i40e_get_partition_bw_setting(struct i40e_pf *pf);
 i40e_status i40e_set_partition_bw_setting(struct i40e_pf *pf);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 48856dea512c8..7f224dbe9c0ae 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1800,6 +1800,8 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 
 	sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID;
 	offset = 0;
+	/* zero out queue mapping, it will get updated on the end of the function */
+	memset(ctxt->info.queue_mapping, 0, sizeof(ctxt->info.queue_mapping));
 
 	if (vsi->type == I40E_VSI_MAIN) {
 		/* This code helps add more queue to the VSI if we have
@@ -1816,10 +1818,12 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 	}
 
 	/* Number of queues per enabled TC */
-	if (vsi->type == I40E_VSI_MAIN)
+	if (vsi->type == I40E_VSI_MAIN ||
+	    (vsi->type == I40E_VSI_SRIOV && vsi->num_queue_pairs != 0))
 		num_tc_qps = vsi->num_queue_pairs;
 	else
 		num_tc_qps = vsi->alloc_queue_pairs;
+
 	if (enabled_tc && (vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
 		/* Find numtc from enabled TC bitmap */
 		for (i = 0, numtc = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
@@ -1897,10 +1901,12 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 		}
 		ctxt->info.tc_mapping[i] = cpu_to_le16(qmap);
 	}
-	/* Do not change previously set num_queue_pairs for PFs */
+	/* Do not change previously set num_queue_pairs for PFs and VFs*/
 	if ((vsi->type == I40E_VSI_MAIN && numtc != 1) ||
-	    vsi->type != I40E_VSI_MAIN)
+	    (vsi->type == I40E_VSI_SRIOV && vsi->num_queue_pairs == 0) ||
+	    (vsi->type != I40E_VSI_MAIN && vsi->type != I40E_VSI_SRIOV))
 		vsi->num_queue_pairs = offset;
+
 	/* Scheduler section valid can only be set for ADD VSI */
 	if (is_add) {
 		sections |= I40E_AQ_VSI_PROP_SCHED_VALID;
@@ -5405,6 +5411,58 @@ static void i40e_vsi_update_queue_map(struct i40e_vsi *vsi,
 	       sizeof(vsi->info.tc_mapping));
 }
 
+/**
+ * i40e_update_adq_vsi_queues - update queue mapping for ADq VSI
+ * @vsi: the VSI being reconfigured
+ * @vsi_offset: offset from main VF VSI
+ */
+int i40e_update_adq_vsi_queues(struct i40e_vsi *vsi, int vsi_offset)
+{
+	struct i40e_vsi_context ctxt = {};
+	struct i40e_pf *pf;
+	struct i40e_hw *hw;
+	int ret;
+
+	if (!vsi)
+		return I40E_ERR_PARAM;
+	pf = vsi->back;
+	hw = &pf->hw;
+
+	ctxt.seid = vsi->seid;
+	ctxt.pf_num = hw->pf_id;
+	ctxt.vf_num = vsi->vf_id + hw->func_caps.vf_base_id + vsi_offset;
+	ctxt.uplink_seid = vsi->uplink_seid;
+	ctxt.connection_type = I40E_AQ_VSI_CONN_TYPE_NORMAL;
+	ctxt.flags = I40E_AQ_VSI_TYPE_VF;
+	ctxt.info = vsi->info;
+
+	i40e_vsi_setup_queue_map(vsi, &ctxt, vsi->tc_config.enabled_tc,
+				 false);
+	if (vsi->reconfig_rss) {
+		vsi->rss_size = min_t(int, pf->alloc_rss_size,
+				      vsi->num_queue_pairs);
+		ret = i40e_vsi_config_rss(vsi);
+		if (ret) {
+			dev_info(&pf->pdev->dev, "Failed to reconfig rss for num_queues\n");
+			return ret;
+		}
+		vsi->reconfig_rss = false;
+	}
+
+	ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
+	if (ret) {
+		dev_info(&pf->pdev->dev, "Update vsi config failed, err %s aq_err %s\n",
+			 i40e_stat_str(hw, ret),
+			 i40e_aq_str(hw, hw->aq.asq_last_status));
+		return ret;
+	}
+	/* update the local VSI info with updated queue map */
+	i40e_vsi_update_queue_map(vsi, &ctxt);
+	vsi->info.valid_sections = 0;
+
+	return ret;
+}
+
 /**
  * i40e_vsi_config_tc - Configure VSI Tx Scheduler for given TC map
  * @vsi: VSI to be configured
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index dacd1453b7311..7cf572d8bd140 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2166,11 +2166,12 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 	struct virtchnl_vsi_queue_config_info *qci =
 	    (struct virtchnl_vsi_queue_config_info *)msg;
 	struct virtchnl_queue_pair_info *qpi;
-	struct i40e_pf *pf = vf->pf;
 	u16 vsi_id, vsi_queue_id = 0;
-	u16 num_qps_all = 0;
+	struct i40e_pf *pf = vf->pf;
 	i40e_status aq_ret = 0;
 	int i, j = 0, idx = 0;
+	struct i40e_vsi *vsi;
+	u16 num_qps_all = 0;
 
 	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
 		aq_ret = I40E_ERR_PARAM;
@@ -2259,9 +2260,15 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 		pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
 			qci->num_queue_pairs;
 	} else {
-		for (i = 0; i < vf->num_tc; i++)
-			pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs =
-			       vf->ch[i].num_qps;
+		for (i = 0; i < vf->num_tc; i++) {
+			vsi = pf->vsi[vf->ch[i].vsi_idx];
+			vsi->num_queue_pairs = vf->ch[i].num_qps;
+
+			if (i40e_update_adq_vsi_queues(vsi, i)) {
+				aq_ret = I40E_ERR_CONFIG;
+				goto error_param;
+			}
+		}
 	}
 
 error_param:
-- 
GitLab


From 69868d7a8853cebb5a4e197da323bab5bc2470ec Mon Sep 17 00:00:00 2001
From: Karen Sornek <karen.sornek@intel.com>
Date: Wed, 28 Apr 2021 10:19:41 +0200
Subject: [PATCH 1636/4878] i40e: Fix warning message and call stack during
 rmmod i40e driver

[ Upstream commit 3a3b311e3881172fc8e019b6508f04bc40c92d9d ]

Restore part of reset functionality used when reset is called
from the VF to reset itself. Without this fix warning message
is displayed when VF is being removed via sysfs.

Fix the crash of the VF during reset by ensuring
that the PF receives the reset message successfully.
Refactor code to use one function instead of two.

Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 53 ++++++++-----------
 1 file changed, 21 insertions(+), 32 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 7cf572d8bd140..41c0a103119c1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -130,17 +130,18 @@ void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
 /***********************misc routines*****************************/
 
 /**
- * i40e_vc_disable_vf
+ * i40e_vc_reset_vf
  * @vf: pointer to the VF info
- *
- * Disable the VF through a SW reset.
+ * @notify_vf: notify vf about reset or not
+ * Reset VF handler.
  **/
-static inline void i40e_vc_disable_vf(struct i40e_vf *vf)
+static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)
 {
 	struct i40e_pf *pf = vf->pf;
 	int i;
 
-	i40e_vc_notify_vf_reset(vf);
+	if (notify_vf)
+		i40e_vc_notify_vf_reset(vf);
 
 	/* We want to ensure that an actual reset occurs initiated after this
 	 * function was called. However, we do not want to wait forever, so
@@ -158,9 +159,14 @@ static inline void i40e_vc_disable_vf(struct i40e_vf *vf)
 		usleep_range(10000, 20000);
 	}
 
-	dev_warn(&vf->pf->pdev->dev,
-		 "Failed to initiate reset for VF %d after 200 milliseconds\n",
-		 vf->vf_id);
+	if (notify_vf)
+		dev_warn(&vf->pf->pdev->dev,
+			 "Failed to initiate reset for VF %d after 200 milliseconds\n",
+			 vf->vf_id);
+	else
+		dev_dbg(&vf->pf->pdev->dev,
+			"Failed to initiate reset for VF %d after 200 milliseconds\n",
+			vf->vf_id);
 }
 
 /**
@@ -2054,20 +2060,6 @@ err:
 	return ret;
 }
 
-/**
- * i40e_vc_reset_vf_msg
- * @vf: pointer to the VF info
- *
- * called from the VF to reset itself,
- * unlike other virtchnl messages, PF driver
- * doesn't send the response back to the VF
- **/
-static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
-{
-	if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
-		i40e_reset_vf(vf, false);
-}
-
 /**
  * i40e_vc_config_promiscuous_mode_msg
  * @vf: pointer to the VF info
@@ -2563,8 +2555,7 @@ static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
 	} else {
 		/* successful request */
 		vf->num_req_queues = req_pairs;
-		i40e_vc_notify_vf_reset(vf);
-		i40e_reset_vf(vf, false);
+		i40e_vc_reset_vf(vf, true);
 		return 0;
 	}
 
@@ -3777,8 +3768,7 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
 	vf->num_req_queues = 0;
 
 	/* reset the VF in order to allocate resources */
-	i40e_vc_notify_vf_reset(vf);
-	i40e_reset_vf(vf, false);
+	i40e_vc_reset_vf(vf, true);
 
 	return I40E_SUCCESS;
 
@@ -3818,8 +3808,7 @@ static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
 	}
 
 	/* reset the VF in order to allocate resources */
-	i40e_vc_notify_vf_reset(vf);
-	i40e_reset_vf(vf, false);
+	i40e_vc_reset_vf(vf, true);
 
 	return I40E_SUCCESS;
 
@@ -3881,7 +3870,7 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
 		i40e_vc_notify_vf_link_state(vf);
 		break;
 	case VIRTCHNL_OP_RESET_VF:
-		i40e_vc_reset_vf_msg(vf);
+		i40e_vc_reset_vf(vf, false);
 		ret = 0;
 		break;
 	case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
@@ -4135,7 +4124,7 @@ int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 	/* Force the VF interface down so it has to bring up with new MAC
 	 * address
 	 */
-	i40e_vc_disable_vf(vf);
+	i40e_vc_reset_vf(vf, true);
 	dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
 
 error_param:
@@ -4199,7 +4188,7 @@ int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
 		/* duplicate request, so just return success */
 		goto error_pvid;
 
-	i40e_vc_disable_vf(vf);
+	i40e_vc_reset_vf(vf, true);
 	/* During reset the VF got a new VSI, so refresh a pointer. */
 	vsi = pf->vsi[vf->lan_vsi_idx];
 	/* Locked once because multiple functions below iterate list */
@@ -4582,7 +4571,7 @@ int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
 		goto out;
 
 	vf->trusted = setting;
-	i40e_vc_disable_vf(vf);
+	i40e_vc_reset_vf(vf, true);
 	dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
 		 vf_id, setting ? "" : "un");
 
-- 
GitLab


From 028ea7b090ec265d31957e47ef4bebc980339e1d Mon Sep 17 00:00:00 2001
From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Date: Mon, 21 Jun 2021 08:37:31 +0000
Subject: [PATCH 1637/4878] i40e: Fix creation of first queue by omitting it if
 is not power of two

[ Upstream commit 2e6d218c1ec6fb9cd70693b78134cbc35ae0b5a9 ]

Reject TCs creation with proper message if the first queue
assignment is not equal to the power of two.
The first queue number was checked too late in the second queue
iteration, if second queue was configured at all. Now if first queue value
is not a power of two, then trying to create qdisc will be rejected.

Fixes: 8f88b3034db3 ("i40e: Add infrastructure for queue channel support")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 59 +++++++--------------
 1 file changed, 19 insertions(+), 40 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 7f224dbe9c0ae..8cb80798efb2b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5753,24 +5753,6 @@ static void i40e_remove_queue_channels(struct i40e_vsi *vsi)
 	INIT_LIST_HEAD(&vsi->ch_list);
 }
 
-/**
- * i40e_is_any_channel - channel exist or not
- * @vsi: ptr to VSI to which channels are associated with
- *
- * Returns true or false if channel(s) exist for associated VSI or not
- **/
-static bool i40e_is_any_channel(struct i40e_vsi *vsi)
-{
-	struct i40e_channel *ch, *ch_tmp;
-
-	list_for_each_entry_safe(ch, ch_tmp, &vsi->ch_list, list) {
-		if (ch->initialized)
-			return true;
-	}
-
-	return false;
-}
-
 /**
  * i40e_get_max_queues_for_channel
  * @vsi: ptr to VSI to which channels are associated with
@@ -6276,26 +6258,15 @@ int i40e_create_queue_channel(struct i40e_vsi *vsi,
 	/* By default we are in VEPA mode, if this is the first VF/VMDq
 	 * VSI to be added switch to VEB mode.
 	 */
-	if ((!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) ||
-	    (!i40e_is_any_channel(vsi))) {
-		if (!is_power_of_2(vsi->tc_config.tc_info[0].qcount)) {
-			dev_dbg(&pf->pdev->dev,
-				"Failed to create channel. Override queues (%u) not power of 2\n",
-				vsi->tc_config.tc_info[0].qcount);
-			return -EINVAL;
-		}
 
-		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
-			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
+	if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
+		pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
 
-			if (vsi->type == I40E_VSI_MAIN) {
-				if (pf->flags & I40E_FLAG_TC_MQPRIO)
-					i40e_do_reset(pf, I40E_PF_RESET_FLAG,
-						      true);
-				else
-					i40e_do_reset_safe(pf,
-							   I40E_PF_RESET_FLAG);
-			}
+		if (vsi->type == I40E_VSI_MAIN) {
+			if (pf->flags & I40E_FLAG_TC_MQPRIO)
+				i40e_do_reset(pf, I40E_PF_RESET_FLAG, true);
+			else
+				i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 		}
 		/* now onwards for main VSI, number of queues will be value
 		 * of TC0's queue count
@@ -7622,12 +7593,20 @@ config_tc:
 			    vsi->seid);
 		need_reset = true;
 		goto exit;
-	} else {
-		dev_info(&vsi->back->pdev->dev,
-			 "Setup channel (id:%u) utilizing num_queues %d\n",
-			 vsi->seid, vsi->tc_config.tc_info[0].qcount);
+	} else if (enabled_tc &&
+		   (!is_power_of_2(vsi->tc_config.tc_info[0].qcount))) {
+		netdev_info(netdev,
+			    "Failed to create channel. Override queues (%u) not power of 2\n",
+			    vsi->tc_config.tc_info[0].qcount);
+		ret = -EINVAL;
+		need_reset = true;
+		goto exit;
 	}
 
+	dev_info(&vsi->back->pdev->dev,
+		 "Setup channel (id:%u) utilizing num_queues %d\n",
+		 vsi->seid, vsi->tc_config.tc_info[0].qcount);
+
 	if (pf->flags & I40E_FLAG_TC_MQPRIO) {
 		if (vsi->mqprio_qopt.max_rate[0]) {
 			u64 max_tx_rate = vsi->mqprio_qopt.max_rate[0];
-- 
GitLab


From 41dc8dcb49d5b162e5266d48bdf94e9ee49d74a4 Mon Sep 17 00:00:00 2001
From: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Date: Fri, 29 Oct 2021 11:26:01 +0200
Subject: [PATCH 1638/4878] i40e: Fix display error code in dmesg

[ Upstream commit 5aff430d4e33a0b48a6b3d5beb06f79da23f9916 ]

Fix misleading display error in dmesg if tc filter return fail.
Only i40e status error code should be converted to string, not linux
error code. Otherwise, we return false information about the error.

Fixes: 2f4b411a3d67 ("i40e: Enable cloud filters via tc-flower")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 8cb80798efb2b..583eae71cda4b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8171,9 +8171,8 @@ static int i40e_configure_clsflower(struct i40e_vsi *vsi,
 		err = i40e_add_del_cloud_filter(vsi, filter, true);
 
 	if (err) {
-		dev_err(&pf->pdev->dev,
-			"Failed to add cloud filter, err %s\n",
-			i40e_stat_str(&pf->hw, err));
+		dev_err(&pf->pdev->dev, "Failed to add cloud filter, err %d\n",
+			err);
 		goto err;
 	}
 
-- 
GitLab


From cb14b196d991c864ed2d1b6e79d68a7ce38e6538 Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Mon, 15 Nov 2021 22:56:00 +0800
Subject: [PATCH 1639/4878] NFC: reorganize the functions in nci_request

[ Upstream commit 86cdf8e38792545161dbe3350a7eced558ba4d15 ]

There is a possible data race as shown below:

thread-A in nci_request()       | thread-B in nci_close_device()
                                | mutex_lock(&ndev->req_lock);
test_bit(NCI_UP, &ndev->flags); |
...                             | test_and_clear_bit(NCI_UP, &ndev->flags)
mutex_lock(&ndev->req_lock);    |
                                |

This race will allow __nci_request() to be awaked while the device is
getting removed.

Similar to commit e2cb6b891ad2 ("bluetooth: eliminate the potential race
condition when removing the HCI controller"). this patch alters the
function sequence in nci_request() to prevent the data races between the
nci_close_device().

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation")
Link: https://lore.kernel.org/r/20211115145600.8320-1-linma@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/nfc/nci/core.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 32e8154363cab..5e55cb6c087a2 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -144,12 +144,15 @@ inline int nci_request(struct nci_dev *ndev,
 {
 	int rc;
 
-	if (!test_bit(NCI_UP, &ndev->flags))
-		return -ENETDOWN;
-
 	/* Serialize all requests */
 	mutex_lock(&ndev->req_lock);
-	rc = __nci_request(ndev, req, opt, timeout);
+	/* check the state after obtaing the lock against any races
+	 * from nci_close_device when the device gets removed.
+	 */
+	if (test_bit(NCI_UP, &ndev->flags))
+		rc = __nci_request(ndev, req, opt, timeout);
+	else
+		rc = -ENETDOWN;
 	mutex_unlock(&ndev->req_lock);
 
 	return rc;
-- 
GitLab


From 73a0d12114b4bc1a9def79a623264754b9df698e Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Tue, 16 Nov 2021 23:26:52 +0800
Subject: [PATCH 1640/4878] NFC: reorder the logic in nfc_{un,}register_device

[ Upstream commit 3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 ]

There is a potential UAF between the unregistration routine and the NFC
netlink operations.

The race that cause that UAF can be shown as below:

 (FREE)                      |  (USE)
nfcmrvl_nci_unregister_dev   |  nfc_genl_dev_up
  nci_close_device           |
  nci_unregister_device      |    nfc_get_device
    nfc_unregister_device    |    nfc_dev_up
      rfkill_destory         |
      device_del             |      rfkill_blocked
  ...                        |    ...

The root cause for this race is concluded below:
1. The rfkill_blocked (USE) in nfc_dev_up is supposed to be placed after
the device_is_registered check.
2. Since the netlink operations are possible just after the device_add
in nfc_register_device, the nfc_dev_up() can happen anywhere during the
rfkill creation process, which leads to data race.

This patch reorder these actions to permit
1. Once device_del is finished, the nfc_dev_up cannot dereference the
rfkill object.
2. The rfkill_register need to be placed after the device_add of nfc_dev
because the parent device need to be created first. So this patch keeps
the order but inject device_lock to prevent the data race.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Fixes: be055b2f89b5 ("NFC: RFKILL support")
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211116152652.19217-1-linma@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/nfc/core.c | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

diff --git a/net/nfc/core.c b/net/nfc/core.c
index eb377f87bcae8..6800470dd6df7 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -94,13 +94,13 @@ int nfc_dev_up(struct nfc_dev *dev)
 
 	device_lock(&dev->dev);
 
-	if (dev->rfkill && rfkill_blocked(dev->rfkill)) {
-		rc = -ERFKILL;
+	if (!device_is_registered(&dev->dev)) {
+		rc = -ENODEV;
 		goto error;
 	}
 
-	if (!device_is_registered(&dev->dev)) {
-		rc = -ENODEV;
+	if (dev->rfkill && rfkill_blocked(dev->rfkill)) {
+		rc = -ERFKILL;
 		goto error;
 	}
 
@@ -1117,11 +1117,7 @@ int nfc_register_device(struct nfc_dev *dev)
 	if (rc)
 		pr_err("Could not register llcp device\n");
 
-	rc = nfc_genl_device_added(dev);
-	if (rc)
-		pr_debug("The userspace won't be notified that the device %s was added\n",
-			 dev_name(&dev->dev));
-
+	device_lock(&dev->dev);
 	dev->rfkill = rfkill_alloc(dev_name(&dev->dev), &dev->dev,
 				   RFKILL_TYPE_NFC, &nfc_rfkill_ops, dev);
 	if (dev->rfkill) {
@@ -1130,6 +1126,12 @@ int nfc_register_device(struct nfc_dev *dev)
 			dev->rfkill = NULL;
 		}
 	}
+	device_unlock(&dev->dev);
+
+	rc = nfc_genl_device_added(dev);
+	if (rc)
+		pr_debug("The userspace won't be notified that the device %s was added\n",
+			 dev_name(&dev->dev));
 
 	return 0;
 }
@@ -1146,10 +1148,17 @@ void nfc_unregister_device(struct nfc_dev *dev)
 
 	pr_debug("dev_name=%s\n", dev_name(&dev->dev));
 
+	rc = nfc_genl_device_removed(dev);
+	if (rc)
+		pr_debug("The userspace won't be notified that the device %s "
+			 "was removed\n", dev_name(&dev->dev));
+
+	device_lock(&dev->dev);
 	if (dev->rfkill) {
 		rfkill_unregister(dev->rfkill);
 		rfkill_destroy(dev->rfkill);
 	}
+	device_unlock(&dev->dev);
 
 	if (dev->ops->check_presence) {
 		device_lock(&dev->dev);
@@ -1159,11 +1168,6 @@ void nfc_unregister_device(struct nfc_dev *dev)
 		cancel_work_sync(&dev->check_pres_work);
 	}
 
-	rc = nfc_genl_device_removed(dev);
-	if (rc)
-		pr_debug("The userspace won't be notified that the device %s "
-			 "was removed\n", dev_name(&dev->dev));
-
 	nfc_llcp_unregister_device(dev);
 
 	mutex_lock(&nfc_devlist_mutex);
-- 
GitLab


From b2a60b4a0195ba918ce924ba0616048ce09a3cc5 Mon Sep 17 00:00:00 2001
From: Bongsu Jeon <bongsu.jeon@samsung.com>
Date: Thu, 31 Dec 2020 11:59:26 +0900
Subject: [PATCH 1641/4878] net: nfc: nci: Change the NCI close sequence

[ Upstream commit f011539e723c737b74876ac47345e40270a3c384 ]

If there is a NCI command in work queue after closing the NCI device at
nci_unregister_device, The NCI command timer starts at flush_workqueue
function and then NCI command timeout handler would be called 5 second
after flushing the NCI command work queue and destroying the queue.
At that time, the timeout handler would try to use NCI command work queue
that is destroyed already. it will causes the problem. To avoid this
abnormal situation, change the sequence to prevent the NCI command timeout
handler from being called after destroying the NCI command work queue.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/nfc/nci/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 5e55cb6c087a2..4d3ab0f44c9f4 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -568,11 +568,11 @@ static int nci_close_device(struct nci_dev *ndev)
 
 	clear_bit(NCI_INIT, &ndev->flags);
 
-	del_timer_sync(&ndev->cmd_timer);
-
 	/* Flush cmd wq */
 	flush_workqueue(ndev->cmd_wq);
 
+	del_timer_sync(&ndev->cmd_timer);
+
 	/* Clear flags */
 	ndev->flags = 0;
 
-- 
GitLab


From 34e54703fb0fdbfc0a3cfc065d71e9a8353d3ac9 Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Tue, 16 Nov 2021 23:27:32 +0800
Subject: [PATCH 1642/4878] NFC: add NCI_UNREG flag to eliminate the race

[ Upstream commit 48b71a9e66c2eab60564b1b1c85f4928ed04e406 ]

There are two sites that calls queue_work() after the
destroy_workqueue() and lead to possible UAF.

The first site is nci_send_cmd(), which can happen after the
nci_close_device as below

nfcmrvl_nci_unregister_dev   |  nfc_genl_dev_up
  nci_close_device           |
    flush_workqueue          |
    del_timer_sync           |
  nci_unregister_device      |    nfc_get_device
    destroy_workqueue        |    nfc_dev_up
    nfc_unregister_device    |      nci_dev_up
      device_del             |        nci_open_device
                             |          __nci_request
                             |            nci_send_cmd
                             |              queue_work !!!

Another site is nci_cmd_timer, awaked by the nci_cmd_work from the
nci_send_cmd.

  ...                        |  ...
  nci_unregister_device      |  queue_work
    destroy_workqueue        |
    nfc_unregister_device    |  ...
      device_del             |  nci_cmd_work
                             |  mod_timer
                             |  ...
                             |  nci_cmd_timer
                             |    queue_work !!!

For the above two UAF, the root cause is that the nfc_dev_up can race
between the nci_unregister_device routine. Therefore, this patch
introduce NCI_UNREG flag to easily eliminate the possible race. In
addition, the mutex_lock in nci_close_device can act as a barrier.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Fixes: 6a2968aaf50c ("NFC: basic NCI protocol implementation")
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211116152732.19238-1-linma@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/nfc/nci_core.h |  1 +
 net/nfc/nci/core.c         | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 33979017b7824..004e49f748419 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -30,6 +30,7 @@ enum nci_flag {
 	NCI_UP,
 	NCI_DATA_EXCHANGE,
 	NCI_DATA_EXCHANGE_TO,
+	NCI_UNREG,
 };
 
 /* NCI device states */
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 4d3ab0f44c9f4..e38719e2ee582 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -473,6 +473,11 @@ static int nci_open_device(struct nci_dev *ndev)
 
 	mutex_lock(&ndev->req_lock);
 
+	if (test_bit(NCI_UNREG, &ndev->flags)) {
+		rc = -ENODEV;
+		goto done;
+	}
+
 	if (test_bit(NCI_UP, &ndev->flags)) {
 		rc = -EALREADY;
 		goto done;
@@ -536,6 +541,10 @@ done:
 static int nci_close_device(struct nci_dev *ndev)
 {
 	nci_req_cancel(ndev, ENODEV);
+
+	/* This mutex needs to be held as a barrier for
+	 * caller nci_unregister_device
+	 */
 	mutex_lock(&ndev->req_lock);
 
 	if (!test_and_clear_bit(NCI_UP, &ndev->flags)) {
@@ -573,8 +582,8 @@ static int nci_close_device(struct nci_dev *ndev)
 
 	del_timer_sync(&ndev->cmd_timer);
 
-	/* Clear flags */
-	ndev->flags = 0;
+	/* Clear flags except NCI_UNREG */
+	ndev->flags &= BIT(NCI_UNREG);
 
 	mutex_unlock(&ndev->req_lock);
 
@@ -1259,6 +1268,12 @@ void nci_unregister_device(struct nci_dev *ndev)
 {
 	struct nci_conn_info    *conn_info, *n;
 
+	/* This set_bit is not protected with specialized barrier,
+	 * However, it is fine because the mutex_lock(&ndev->req_lock);
+	 * in nci_close_device() will help to emit one.
+	 */
+	set_bit(NCI_UNREG, &ndev->flags);
+
 	nci_close_device(ndev);
 
 	destroy_workqueue(ndev->cmd_wq);
-- 
GitLab


From 4e6cce20fbc02d45e8505e0381ad6f9afb1b873b Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Wed, 17 Nov 2021 12:59:52 -0800
Subject: [PATCH 1643/4878] e100: fix device suspend/resume

[ Upstream commit 5d2ca2e12dfb2aff3388ca57b06f570fa6206ced ]

As reported in [1], e100 was no longer working for suspend/resume
cycles. The previous commit mentioned in the fixes appears to have
broken things and this attempts to practice best known methods for
device power management and keep wake-up working while allowing
suspend/resume to work. To do this, I reorder a little bit of code
and fix the resume path to make sure the device is enabled.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=214933

Fixes: 69a74aef8a18 ("e100: use generic power management")
Cc: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Reported-by: Alexey Kuznetsov <axet@me.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Alexey Kuznetsov <axet@me.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/e100.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index ee86ea12fa379..9295a9a1efc73 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -2997,9 +2997,10 @@ static void __e100_shutdown(struct pci_dev *pdev, bool *enable_wake)
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct nic *nic = netdev_priv(netdev);
 
+	netif_device_detach(netdev);
+
 	if (netif_running(netdev))
 		e100_down(nic);
-	netif_device_detach(netdev);
 
 	if ((nic->flags & wol_magic) | e100_asf(nic)) {
 		/* enable reverse auto-negotiation */
@@ -3016,7 +3017,7 @@ static void __e100_shutdown(struct pci_dev *pdev, bool *enable_wake)
 		*enable_wake = false;
 	}
 
-	pci_clear_master(pdev);
+	pci_disable_device(pdev);
 }
 
 static int __e100_power_off(struct pci_dev *pdev, bool wake)
@@ -3036,8 +3037,6 @@ static int __maybe_unused e100_suspend(struct device *dev_d)
 
 	__e100_shutdown(to_pci_dev(dev_d), &wake);
 
-	device_wakeup_disable(dev_d);
-
 	return 0;
 }
 
@@ -3045,6 +3044,14 @@ static int __maybe_unused e100_resume(struct device *dev_d)
 {
 	struct net_device *netdev = dev_get_drvdata(dev_d);
 	struct nic *nic = netdev_priv(netdev);
+	int err;
+
+	err = pci_enable_device(to_pci_dev(dev_d));
+	if (err) {
+		netdev_err(netdev, "Resume cannot enable PCI device, aborting\n");
+		return err;
+	}
+	pci_set_master(to_pci_dev(dev_d));
 
 	/* disable reverse auto-negotiation */
 	if (nic->phy == phy_82552_v) {
@@ -3056,10 +3063,11 @@ static int __maybe_unused e100_resume(struct device *dev_d)
 		           smartspeed & ~(E100_82552_REV_ANEG));
 	}
 
-	netif_device_attach(netdev);
 	if (netif_running(netdev))
 		e100_up(nic);
 
+	netif_device_attach(netdev);
+
 	return 0;
 }
 
-- 
GitLab


From a8230fb74b5452b59ed9bd26c6f51ad7e3706982 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 24 Sep 2021 01:10:31 +1000
Subject: [PATCH 1644/4878] KVM: PPC: Book3S HV: Use GLOBAL_TOC for
 kvmppc_h_set_dabr/xdabr()

[ Upstream commit dae581864609d36fb58855fd59880b4941ce9d14 ]

kvmppc_h_set_dabr(), and kvmppc_h_set_xdabr() which jumps into
it, need to use _GLOBAL_TOC to setup the kernel TOC pointer, because
kvmppc_h_set_dabr() uses LOAD_REG_ADDR() to load dawr_force_enable.

When called from hcall_try_real_mode() we have the kernel TOC in r2,
established near the start of kvmppc_interrupt_hv(), so there is no
issue.

But they can also be called from kvmppc_pseries_do_hcall() which is
module code, so the access ends up happening with the kvm-hv module's
r2, which will not point at dawr_force_enable and could even cause a
fault.

With the current code layout and compilers we haven't observed a fault
in practice, the load hits somewhere in kvm-hv.ko and silently returns
some bogus value.

Note that we we expect p8/p9 guests to use the DAWR, but SLOF uses
h_set_dabr() to test if sc1 works correctly, see SLOF's
lib/libhvcall/brokensc1.c.

Fixes: c1fe190c0672 ("powerpc: Add force enable of DAWR on P9 option")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Link: https://lore.kernel.org/r/20210923151031.72408-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index db78123166a8b..b1d9afffd8419 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -2539,7 +2539,7 @@ hcall_real_table:
 	.globl	hcall_real_table_end
 hcall_real_table_end:
 
-_GLOBAL(kvmppc_h_set_xdabr)
+_GLOBAL_TOC(kvmppc_h_set_xdabr)
 EXPORT_SYMBOL_GPL(kvmppc_h_set_xdabr)
 	andi.	r0, r5, DABRX_USER | DABRX_KERNEL
 	beq	6f
@@ -2549,7 +2549,7 @@ EXPORT_SYMBOL_GPL(kvmppc_h_set_xdabr)
 6:	li	r3, H_PARAMETER
 	blr
 
-_GLOBAL(kvmppc_h_set_dabr)
+_GLOBAL_TOC(kvmppc_h_set_dabr)
 EXPORT_SYMBOL_GPL(kvmppc_h_set_dabr)
 	li	r5, DABRX_USER | DABRX_KERNEL
 3:
-- 
GitLab


From 84f64c7c52d613d82551be20280a7cb2656918d1 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Mon, 1 Nov 2021 22:41:15 -0500
Subject: [PATCH 1645/4878] pinctrl: qcom: sdm845: Enable dual edge errata

[ Upstream commit 3a3a100473d2f6ebf9bdfe6efedd7e18de724388 ]

It has been observed that dual edge triggered wakeirq GPIOs on SDM845
doesn't trigger interrupts on the falling edge.

Enabling wakeirq_dual_edge_errata for SDM845 indicates that the PDC in
SDM845 suffers from the same problem described, and worked around, by
Doug in 'c3c0c2e18d94 ("pinctrl: qcom: Handle broken/missing PDC dual
edge IRQs on sc7180")', so enable the workaround for SDM845 as well.

The specific problem seen without this is that gpio-keys does not detect
the falling edge of the LID gpio on the Lenovo Yoga C630 and as such
consistently reports the LID as closed.

Fixes: e35a6ae0eb3a ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-By: Steev Klimaszewski <steev@kali.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211102034115.1946036-1-bjorn.andersson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/qcom/pinctrl-sdm845.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/qcom/pinctrl-sdm845.c b/drivers/pinctrl/qcom/pinctrl-sdm845.c
index c51793f6546f1..fdfd7b8f3a76d 100644
--- a/drivers/pinctrl/qcom/pinctrl-sdm845.c
+++ b/drivers/pinctrl/qcom/pinctrl-sdm845.c
@@ -1310,6 +1310,7 @@ static const struct msm_pinctrl_soc_data sdm845_pinctrl = {
 	.ngpios = 151,
 	.wakeirq_map = sdm845_pdc_map,
 	.nwakeirq_map = ARRAY_SIZE(sdm845_pdc_map),
+	.wakeirq_dual_edge_errata = true,
 };
 
 static const struct msm_pinctrl_soc_data sdm845_acpi_pinctrl = {
-- 
GitLab


From 175135a5eacf40b0ed9a9e3b91baca40fb3ba59a Mon Sep 17 00:00:00 2001
From: Alexander Antonov <alexander.antonov@linux.intel.com>
Date: Mon, 15 Nov 2021 12:03:32 +0300
Subject: [PATCH 1646/4878] perf/x86/intel/uncore: Fix filter_tid mask for CHA
 events on Skylake Server

[ Upstream commit e324234e0aa881b7841c7c713306403e12b069ff ]

According Uncore Reference Manual: any of the CHA events may be filtered
by Thread/Core-ID by using tid modifier in CHA Filter 0 Register.
Update skx_cha_hw_config() to follow Uncore Guide.

Fixes: cd34cd97b7b4 ("perf/x86/intel/uncore: Add Skylake server uncore support")
Signed-off-by: Alexander Antonov <alexander.antonov@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20211115090334.3789-2-alexander.antonov@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/intel/uncore_snbep.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index c01b51d1cbdff..229884f4134cb 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3545,6 +3545,9 @@ static int skx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *ev
 	struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 	struct extra_reg *er;
 	int idx = 0;
+	/* Any of the CHA events may be filtered by Thread/Core-ID.*/
+	if (event->hw.config & SNBEP_CBO_PMON_CTL_TID_EN)
+		idx = SKX_CHA_MSR_PMON_BOX_FILTER_TID;
 
 	for (er = skx_uncore_cha_extra_regs; er->msr; er++) {
 		if (er->event != (event->hw.config & er->config_mask))
-- 
GitLab


From d4fb80ae98303e0ff77229c02e6b42b236344ea6 Mon Sep 17 00:00:00 2001
From: Alexander Antonov <alexander.antonov@linux.intel.com>
Date: Mon, 15 Nov 2021 12:03:33 +0300
Subject: [PATCH 1647/4878] perf/x86/intel/uncore: Fix IIO event constraints
 for Skylake Server

[ Upstream commit 3866ae319c846a612109c008f43cba80b8c15e86 ]

According to the latest uncore document, COMP_BUF_OCCUPANCY (0xd5) event
can be collected on 2-3 counters. Update uncore IIO event constraints for
Skylake Server.

Fixes: cd34cd97b7b4 ("perf/x86/intel/uncore: Add Skylake server uncore support")
Signed-off-by: Alexander Antonov <alexander.antonov@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20211115090334.3789-3-alexander.antonov@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/intel/uncore_snbep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 229884f4134cb..ba26792d96731 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3615,6 +3615,7 @@ static struct event_constraint skx_uncore_iio_constraints[] = {
 	UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
 	UNCORE_EVENT_CONSTRAINT(0xc5, 0xc),
 	UNCORE_EVENT_CONSTRAINT(0xd4, 0xc),
+	UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
 	EVENT_CONSTRAINT_END
 };
 
-- 
GitLab


From 4cebe23c032ba44c3d3140dace9a1318f5778cdf Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Tue, 16 Nov 2021 11:06:38 +0100
Subject: [PATCH 1648/4878] s390/kexec: fix return code handling

[ Upstream commit 20c76e242e7025bd355619ba67beb243ba1a1e95 ]

kexec_file_add_ipl_report ignores that ipl_report_finish may fail and
can return an error pointer instead of a valid pointer.
Fix this and simplify by returning NULL in case of an error and let
the only caller handle this case.

Fixes: 99feaa717e55 ("s390/kexec_file: Create ipl report and pass to next kernel")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kernel/ipl.c                | 3 ++-
 arch/s390/kernel/machine_kexec_file.c | 8 +++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 98b3aca1de8e1..6da06905ddce5 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -2156,7 +2156,7 @@ void *ipl_report_finish(struct ipl_report *report)
 
 	buf = vzalloc(report->size);
 	if (!buf)
-		return ERR_PTR(-ENOMEM);
+		goto out;
 	ptr = buf;
 
 	memcpy(ptr, report->ipib, report->ipib->hdr.len);
@@ -2195,6 +2195,7 @@ void *ipl_report_finish(struct ipl_report *report)
 	}
 
 	BUG_ON(ptr > buf + report->size);
+out:
 	return buf;
 }
 
diff --git a/arch/s390/kernel/machine_kexec_file.c b/arch/s390/kernel/machine_kexec_file.c
index f9e4baa64b675..c1090f0b1f6a6 100644
--- a/arch/s390/kernel/machine_kexec_file.c
+++ b/arch/s390/kernel/machine_kexec_file.c
@@ -170,6 +170,7 @@ static int kexec_file_add_ipl_report(struct kimage *image,
 	struct kexec_buf buf;
 	unsigned long addr;
 	void *ptr, *end;
+	int ret;
 
 	buf.image = image;
 
@@ -199,7 +200,10 @@ static int kexec_file_add_ipl_report(struct kimage *image,
 		ptr += len;
 	}
 
+	ret = -ENOMEM;
 	buf.buffer = ipl_report_finish(data->report);
+	if (!buf.buffer)
+		goto out;
 	buf.bufsz = data->report->size;
 	buf.memsz = buf.bufsz;
 
@@ -209,7 +213,9 @@ static int kexec_file_add_ipl_report(struct kimage *image,
 		data->kernel_buf + offsetof(struct lowcore, ipl_parmblock_ptr);
 	*lc_ipl_parmblock_ptr = (__u32)buf.mem;
 
-	return kexec_add_buffer(&buf);
+	ret = kexec_add_buffer(&buf);
+out:
+	return ret;
 }
 
 void *kexec_file_add_components(struct kimage *image,
-- 
GitLab


From 97653ba562b9b28e30a3fcff42531e05a434d58c Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punitagrawal@gmail.com>
Date: Wed, 29 Sep 2021 22:50:49 +0900
Subject: [PATCH 1649/4878] net: stmmac: dwmac-rk: Fix ethernet on rk3399 based
 devices

commit aec3f415f7244b7747a7952596971adb0df2f568 upstream.

Commit 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings")
while getting rid of a runtime PM warning ended up breaking ethernet
on rk3399 based devices. By dropping an extra reference to the device,
the commit ends up enabling suspend / resume of the ethernet device -
which appears to be broken.

While the issue with runtime pm is being investigated, partially
revert commit 2d26f6e39afb to restore the network on rk3399.

Fixes: 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings")
Suggested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Punit Agrawal <punitagrawal@gmail.com>
Cc: Michael Riesch <michael.riesch@wolfvision.net>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20210929135049.3426058-1-punitagrawal@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 143b2cb13bf94..e7fbc9b30bf96 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -21,6 +21,7 @@
 #include <linux/delay.h>
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
+#include <linux/pm_runtime.h>
 
 #include "stmmac_platform.h"
 
@@ -1335,6 +1336,8 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
 		return ret;
 	}
 
+	pm_runtime_get_sync(dev);
+
 	if (bsp_priv->integrated_phy)
 		rk_gmac_integrated_phy_powerup(bsp_priv);
 
@@ -1346,6 +1349,8 @@ static void rk_gmac_powerdown(struct rk_priv_data *gmac)
 	if (gmac->integrated_phy)
 		rk_gmac_integrated_phy_powerdown(gmac);
 
+	pm_runtime_put_sync(&gmac->pdev->dev);
+
 	phy_power_on(gmac, false);
 	gmac_clk_enable(gmac, false);
 }
-- 
GitLab


From af1d3c437eb526f9274e1bf2f8ff4a0484eb1c48 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Tue, 19 Oct 2021 15:36:45 -0700
Subject: [PATCH 1650/4878] arm64: vdso32: suppress error message for 'make
 mrproper'

commit 14831fad73f5ac30ac61760487d95a538e6ab3cb upstream.

When running the following command without arm-linux-gnueabi-gcc in
one's $PATH, the following warning is observed:

$ ARCH=arm64 CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make -j72 LLVM=1 mrproper
make[1]: arm-linux-gnueabi-gcc: No such file or directory

This is because KCONFIG is not run for mrproper, so CONFIG_CC_IS_CLANG
is not set, and we end up eagerly evaluating various variables that try
to invoke CC_COMPAT.

This is a similar problem to what was observed in
commit dc960bfeedb0 ("h8300: suppress error messages for 'make clean'")

Reported-by: Lucas Henneman <henneman@google.com>
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211019223646.1146945-4-ndesaulniers@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/vdso32/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
index 79280c53b9a61..a463b9bceed41 100644
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -48,7 +48,8 @@ cc32-as-instr = $(call try-run,\
 # As a result we set our own flags here.
 
 # KBUILD_CPPFLAGS and NOSTDINC_FLAGS from top-level Makefile
-VDSO_CPPFLAGS := -D__KERNEL__ -nostdinc -isystem $(shell $(CC_COMPAT) -print-file-name=include)
+VDSO_CPPFLAGS := -D__KERNEL__ -nostdinc
+VDSO_CPPFLAGS += -isystem $(shell $(CC_COMPAT) -print-file-name=include 2>/dev/null)
 VDSO_CPPFLAGS += $(LINUXINCLUDE)
 
 # Common C and assembly flags
-- 
GitLab


From 528971af64fc88767e91ae12c0ae036af928feaa Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Fri, 12 Nov 2021 08:56:03 +0100
Subject: [PATCH 1651/4878] tun: fix bonding active backup with arp monitoring

commit a31d27fbed5d518734cb60956303eb15089a7634 upstream.

As stated in the bonding doc, trans_start must be set manually for drivers
using NETIF_F_LLTX:
 Drivers that use NETIF_F_LLTX flag must also update
 netdev_queue->trans_start. If they do not, then the ARP monitor will
 immediately fail any slaves using that driver, and those slaves will stay
 down.

Link: https://www.kernel.org/doc/html/v5.15/networking/bonding.html#arp-monitor-operation
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/tun.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index c671d8e257741..ffbc7eda95eed 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1021,6 +1021,7 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct tun_struct *tun = netdev_priv(dev);
 	int txq = skb->queue_mapping;
+	struct netdev_queue *queue;
 	struct tun_file *tfile;
 	int len = skb->len;
 
@@ -1065,6 +1066,10 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (ptr_ring_produce(&tfile->tx_ring, skb))
 		goto drop;
 
+	/* NETIF_F_LLTX requires to do our own update of trans_start */
+	queue = netdev_get_tx_queue(dev, txq);
+	queue->trans_start = jiffies;
+
 	/* Notify and wake up reader process */
 	if (tfile->flags & TUN_FASYNC)
 		kill_fasync(&tfile->fasync, SIGIO, POLL_IN);
-- 
GitLab


From 0854c9ff2151f9180cdf4d4576ff3eb9f343d263 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 19 Nov 2021 16:43:28 -0800
Subject: [PATCH 1652/4878] hexagon: export raw I/O routines for modules

commit ffb92ce826fd801acb0f4e15b75e4ddf0d189bde upstream.

Patch series "Fixes for ARCH=hexagon allmodconfig", v2.

This series fixes some issues noticed with ARCH=hexagon allmodconfig.

This patch (of 3):

When building ARCH=hexagon allmodconfig, the following errors occur:

  ERROR: modpost: "__raw_readsl" [drivers/i3c/master/svc-i3c-master.ko] undefined!
  ERROR: modpost: "__raw_writesl" [drivers/i3c/master/dw-i3c-master.ko] undefined!
  ERROR: modpost: "__raw_readsl" [drivers/i3c/master/dw-i3c-master.ko] undefined!
  ERROR: modpost: "__raw_writesl" [drivers/i3c/master/i3c-master-cdns.ko] undefined!
  ERROR: modpost: "__raw_readsl" [drivers/i3c/master/i3c-master-cdns.ko] undefined!

Export these symbols so that modules can use them without any errors.

Link: https://lkml.kernel.org/r/20211115174250.1994179-1-nathan@kernel.org
Link: https://lkml.kernel.org/r/20211115174250.1994179-2-nathan@kernel.org
Fixes: 013bf24c3829 ("Hexagon: Provide basic implementation and/or stubs for I/O routines.")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Brian Cain <bcain@codeaurora.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/hexagon/lib/io.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/hexagon/lib/io.c b/arch/hexagon/lib/io.c
index d35d69d6588c4..55f75392857b0 100644
--- a/arch/hexagon/lib/io.c
+++ b/arch/hexagon/lib/io.c
@@ -27,6 +27,7 @@ void __raw_readsw(const void __iomem *addr, void *data, int len)
 		*dst++ = *src;
 
 }
+EXPORT_SYMBOL(__raw_readsw);
 
 /*
  * __raw_writesw - read words a short at a time
@@ -47,6 +48,7 @@ void __raw_writesw(void __iomem *addr, const void *data, int len)
 
 
 }
+EXPORT_SYMBOL(__raw_writesw);
 
 /*  Pretty sure len is pre-adjusted for the length of the access already */
 void __raw_readsl(const void __iomem *addr, void *data, int len)
@@ -62,6 +64,7 @@ void __raw_readsl(const void __iomem *addr, void *data, int len)
 
 
 }
+EXPORT_SYMBOL(__raw_readsl);
 
 void __raw_writesl(void __iomem *addr, const void *data, int len)
 {
@@ -76,3 +79,4 @@ void __raw_writesl(void __iomem *addr, const void *data, int len)
 
 
 }
+EXPORT_SYMBOL(__raw_writesl);
-- 
GitLab


From f5995fcb75eb8b94cd23bd31003941de0eb8b12e Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 19 Nov 2021 16:43:31 -0800
Subject: [PATCH 1653/4878] hexagon: clean up timer-regs.h

commit 51f2ec593441d3d1ebc0d478fac3ea329c7c93ac upstream.

When building allmodconfig, there is a warning about TIMER_ENABLE being
redefined:

  drivers/clocksource/timer-oxnas-rps.c:39:9: error: 'TIMER_ENABLE' macro redefined [-Werror,-Wmacro-redefined]
  #define TIMER_ENABLE            BIT(7)
          ^
  arch/hexagon/include/asm/timer-regs.h:13:9: note: previous definition is here
  #define TIMER_ENABLE            0
           ^
  1 error generated.

The values in this header are only used in one file each, if they are
used at all.  Remove the header and sink all of the constants into their
respective files.

TCX0_CLK_RATE is only used in arch/hexagon/include/asm/timex.h

TIMER_ENABLE, RTOS_TIMER_INT, RTOS_TIMER_REGS_ADDR are only used in
arch/hexagon/kernel/time.c.

SLEEP_CLK_RATE and TIMER_CLR_ON_MATCH have both been unused since the
file's introduction in commit 71e4a47f32f4 ("Hexagon: Add time and timer
functions").

TIMER_ENABLE is redefined as BIT(0) so the shift is moved into the
definition, rather than its use.

Link: https://lkml.kernel.org/r/20211115174250.1994179-3-nathan@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Brian Cain <bcain@codeaurora.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/hexagon/include/asm/timer-regs.h | 26 --------------------------
 arch/hexagon/include/asm/timex.h      |  3 +--
 arch/hexagon/kernel/time.c            | 12 ++++++++++--
 3 files changed, 11 insertions(+), 30 deletions(-)
 delete mode 100644 arch/hexagon/include/asm/timer-regs.h

diff --git a/arch/hexagon/include/asm/timer-regs.h b/arch/hexagon/include/asm/timer-regs.h
deleted file mode 100644
index ee6c61423a058..0000000000000
--- a/arch/hexagon/include/asm/timer-regs.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Timer support for Hexagon
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- */
-
-#ifndef _ASM_TIMER_REGS_H
-#define _ASM_TIMER_REGS_H
-
-/*  This stuff should go into a platform specific file  */
-#define TCX0_CLK_RATE		19200
-#define TIMER_ENABLE		0
-#define TIMER_CLR_ON_MATCH	1
-
-/*
- * 8x50 HDD Specs 5-8.  Simulator co-sim not fixed until
- * release 1.1, and then it's "adjustable" and probably not defaulted.
- */
-#define RTOS_TIMER_INT		3
-#ifdef CONFIG_HEXAGON_COMET
-#define RTOS_TIMER_REGS_ADDR	0xAB000000UL
-#endif
-#define SLEEP_CLK_RATE		32000
-
-#endif
diff --git a/arch/hexagon/include/asm/timex.h b/arch/hexagon/include/asm/timex.h
index 8d4ec76fceb45..dfe69e118b2be 100644
--- a/arch/hexagon/include/asm/timex.h
+++ b/arch/hexagon/include/asm/timex.h
@@ -7,11 +7,10 @@
 #define _ASM_TIMEX_H
 
 #include <asm-generic/timex.h>
-#include <asm/timer-regs.h>
 #include <asm/hexagon_vm.h>
 
 /* Using TCX0 as our clock.  CLOCK_TICK_RATE scheduled to be removed. */
-#define CLOCK_TICK_RATE              TCX0_CLK_RATE
+#define CLOCK_TICK_RATE              19200
 
 #define ARCH_HAS_READ_CURRENT_TIMER
 
diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c
index feffe527ac929..febc95714d756 100644
--- a/arch/hexagon/kernel/time.c
+++ b/arch/hexagon/kernel/time.c
@@ -17,9 +17,10 @@
 #include <linux/of_irq.h>
 #include <linux/module.h>
 
-#include <asm/timer-regs.h>
 #include <asm/hexagon_vm.h>
 
+#define TIMER_ENABLE		BIT(0)
+
 /*
  * For the clocksource we need:
  *	pcycle frequency (600MHz)
@@ -33,6 +34,13 @@ cycles_t	pcycle_freq_mhz;
 cycles_t	thread_freq_mhz;
 cycles_t	sleep_clk_freq;
 
+/*
+ * 8x50 HDD Specs 5-8.  Simulator co-sim not fixed until
+ * release 1.1, and then it's "adjustable" and probably not defaulted.
+ */
+#define RTOS_TIMER_INT		3
+#define RTOS_TIMER_REGS_ADDR	0xAB000000UL
+
 static struct resource rtos_timer_resources[] = {
 	{
 		.start	= RTOS_TIMER_REGS_ADDR,
@@ -80,7 +88,7 @@ static int set_next_event(unsigned long delta, struct clock_event_device *evt)
 	iowrite32(0, &rtos_timer->clear);
 
 	iowrite32(delta, &rtos_timer->match);
-	iowrite32(1 << TIMER_ENABLE, &rtos_timer->enable);
+	iowrite32(TIMER_ENABLE, &rtos_timer->enable);
 	return 0;
 }
 
-- 
GitLab


From a7d91625863d4ffed63b993b5e6dc1298b6430c9 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Mon, 15 Nov 2021 08:01:43 -0800
Subject: [PATCH 1654/4878] tipc: check for null after calling kmemdup

commit 3e6db079751afd527bf3db32314ae938dc571916 upstream.

kmemdup can return a null pointer so need to check for it, otherwise
the null key will be dereferenced later in tipc_crypto_key_xmit as
can be seen in the trace [1].

Cc: tipc-discussion@lists.sourceforge.net
Cc: stable@vger.kernel.org # 5.15, 5.14, 5.10

[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Link: https://lore.kernel.org/r/20211115160143.5099-1-tadeusz.struk@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/tipc/crypto.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index 23b100f36ee48..d8a2f424786fc 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -590,6 +590,10 @@ static int tipc_aead_init(struct tipc_aead **aead, struct tipc_aead_key *ukey,
 	tmp->cloned = NULL;
 	tmp->authsize = TIPC_AES_GCM_TAG_SIZE;
 	tmp->key = kmemdup(ukey, tipc_aead_key_size(ukey), GFP_KERNEL);
+	if (!tmp->key) {
+		tipc_aead_free(&tmp->rcu);
+		return -ENOMEM;
+	}
 	memcpy(&tmp->salt, ukey->key + keylen, TIPC_AES_GCM_SALT_SIZE);
 	atomic_set(&tmp->users, 0);
 	atomic64_set(&tmp->seqno, 0);
-- 
GitLab


From 99032adf7d4b2e6abe0da4cd3d0c0d2d3d3e102b Mon Sep 17 00:00:00 2001
From: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>
Date: Fri, 19 Nov 2021 16:43:18 -0800
Subject: [PATCH 1655/4878] ipc: WARN if trying to remove ipc object which is
 absent

commit 126e8bee943e9926238c891e2df5b5573aee76bc upstream.

Patch series "shm: shm_rmid_forced feature fixes".

Some time ago I met kernel crash after CRIU restore procedure,
fortunately, it was CRIU restore, so, I had dump files and could do
restore many times and crash reproduced easily.  After some
investigation I've constructed the minimal reproducer.  It was found
that it's use-after-free and it happens only if sysctl
kernel.shm_rmid_forced = 1.

The key of the problem is that the exit_shm() function not handles shp's
object destroy when task->sysvshm.shm_clist contains items from
different IPC namespaces.  In most cases this list will contain only
items from one IPC namespace.

How can this list contain object from different namespaces? The
exit_shm() function is designed to clean up this list always when
process leaves IPC namespace.  But we made a mistake a long time ago and
did not add a exit_shm() call into the setns() syscall procedures.

The first idea was just to add this call to setns() syscall but it
obviously changes semantics of setns() syscall and that's
userspace-visible change.  So, I gave up on this idea.

The first real attempt to address the issue was just to omit forced
destroy if we meet shp object not from current task IPC namespace [1].
But that was not the best idea because task->sysvshm.shm_clist was
protected by rwsem which belongs to current task IPC namespace.  It
means that list corruption may occur.

Second approach is just extend exit_shm() to properly handle shp's from
different IPC namespaces [2].  This is really non-trivial thing, I've
put a lot of effort into that but not believed that it's possible to
make it fully safe, clean and clear.

Thanks to the efforts of Manfred Spraul working an elegant solution was
designed.  Thanks a lot, Manfred!

Eric also suggested the way to address the issue in ("[RFC][PATCH] shm:
In shm_exit destroy all created and never attached segments") Eric's
idea was to maintain a list of shm_clists one per IPC namespace, use
lock-less lists.  But there is some extra memory consumption-related
concerns.

An alternative solution which was suggested by me was implemented in
("shm: reset shm_clist on setns but omit forced shm destroy").  The idea
is pretty simple, we add exit_shm() syscall to setns() but DO NOT
destroy shm segments even if sysctl kernel.shm_rmid_forced = 1, we just
clean up the task->sysvshm.shm_clist list.

This chages semantics of setns() syscall a little bit but in comparision
to the "naive" solution when we just add exit_shm() without any special
exclusions this looks like a safer option.

[1] https://lkml.org/lkml/2021/7/6/1108
[2] https://lkml.org/lkml/2021/7/14/736

This patch (of 2):

Let's produce a warning if we trying to remove non-existing IPC object
from IPC namespace kht/idr structures.

This allows us to catch possible bugs when the ipc_rmid() function was
called with inconsistent struct ipc_ids*, struct kern_ipc_perm*
arguments.

Link: https://lkml.kernel.org/r/20211027224348.611025-1-alexander.mikhalitsyn@virtuozzo.com
Link: https://lkml.kernel.org/r/20211027224348.611025-2-alexander.mikhalitsyn@virtuozzo.com
Co-developed-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 ipc/util.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/ipc/util.c b/ipc/util.c
index cfa0045e748d5..bbb5190af6d9f 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -446,8 +446,8 @@ static int ipcget_public(struct ipc_namespace *ns, struct ipc_ids *ids,
 static void ipc_kht_remove(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
 {
 	if (ipcp->key != IPC_PRIVATE)
-		rhashtable_remove_fast(&ids->key_ht, &ipcp->khtnode,
-				       ipc_kht_params);
+		WARN_ON_ONCE(rhashtable_remove_fast(&ids->key_ht, &ipcp->khtnode,
+				       ipc_kht_params));
 }
 
 /**
@@ -462,7 +462,7 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
 {
 	int idx = ipcid_to_idx(ipcp->id);
 
-	idr_remove(&ids->ipcs_idr, idx);
+	WARN_ON_ONCE(idr_remove(&ids->ipcs_idr, idx) != ipcp);
 	ipc_kht_remove(ids, ipcp);
 	ids->in_use--;
 	ipcp->deleted = true;
-- 
GitLab


From b2e2fb64071a00df54d904858b591590de369108 Mon Sep 17 00:00:00 2001
From: Rustam Kovhaev <rkovhaev@gmail.com>
Date: Fri, 19 Nov 2021 16:43:37 -0800
Subject: [PATCH 1656/4878] mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag

commit 34dbc3aaf5d9e89ba6cc5e24add9458c21ab1950 upstream.

When kmemleak is enabled for SLOB, system does not boot and does not
print anything to the console.  At the very early stage in the boot
process we hit infinite recursion from kmemleak_init() and eventually
kernel crashes.

kmemleak_init() specifies SLAB_NOLEAKTRACE for KMEM_CACHE(), but
kmem_cache_create_usercopy() removes it because CACHE_CREATE_MASK is not
valid for SLOB.

Let's fix CACHE_CREATE_MASK and make kmemleak work with SLOB

Link: https://lkml.kernel.org/r/20211115020850.3154366-1-rkovhaev@gmail.com
Fixes: d8843922fba4 ("slab: Ignore internal flags in cache creation")
Signed-off-by: Rustam Kovhaev <rkovhaev@gmail.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Glauber Costa <glommer@parallels.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/slab.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slab.h b/mm/slab.h
index 944e8b2040ae2..6952e10cf33b4 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -147,7 +147,7 @@ static inline slab_flags_t kmem_cache_flags(unsigned int object_size,
 #define SLAB_CACHE_FLAGS (SLAB_NOLEAKTRACE | SLAB_RECLAIM_ACCOUNT | \
 			  SLAB_TEMPORARY | SLAB_ACCOUNT)
 #else
-#define SLAB_CACHE_FLAGS (0)
+#define SLAB_CACHE_FLAGS (SLAB_NOLEAKTRACE)
 #endif
 
 /* Common flags available with current configuration */
-- 
GitLab


From 9c177eee116cf888276d3748cb176e72562cfd5c Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 4 Nov 2021 18:22:38 +0000
Subject: [PATCH 1657/4878] x86/hyperv: Fix NULL deref in set_hv_tscchange_cb()
 if Hyper-V setup fails

commit daf972118c517b91f74ff1731417feb4270625a4 upstream.

Check for a valid hv_vp_index array prior to derefencing hv_vp_index when
setting Hyper-V's TSC change callback.  If Hyper-V setup failed in
hyperv_init(), the kernel will still report that it's running under
Hyper-V, but will have silently disabled nearly all functionality.

  BUG: kernel NULL pointer dereference, address: 0000000000000010
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] SMP
  CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc2+ #75
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
  RIP: 0010:set_hv_tscchange_cb+0x15/0xa0
  Code: <8b> 04 82 8b 15 12 17 85 01 48 c1 e0 20 48 0d ee 00 01 00 f6 c6 08
  ...
  Call Trace:
   kvm_arch_init+0x17c/0x280
   kvm_init+0x31/0x330
   vmx_init+0xba/0x13a
   do_one_initcall+0x41/0x1c0
   kernel_init_freeable+0x1f2/0x23b
   kernel_init+0x16/0x120
   ret_from_fork+0x22/0x30

Fixes: 93286261de1b ("x86/hyperv: Reenlightenment notifications support")
Cc: stable@vger.kernel.org
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20211104182239.1302956-2-seanjc@google.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/hyperv/hv_init.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 3cf4030232590..01860c0d324d7 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -176,6 +176,9 @@ void set_hv_tscchange_cb(void (*cb)(void))
 		return;
 	}
 
+	if (!hv_vp_index)
+		return;
+
 	hv_reenlightenment_cb = cb;
 
 	/* Make sure callback is registered before we write to MSRs */
-- 
GitLab


From 08fd6df8eaaf2c7a3b70629954d432bb80018bf0 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Mon, 15 Nov 2021 09:08:36 +0100
Subject: [PATCH 1658/4878] powerpc/8xx: Fix pinned TLBs with
 CONFIG_STRICT_KERNEL_RWX

commit 1e35eba4055149c578baf0318d2f2f89ea3c44a0 upstream.

As spotted and explained in commit c12ab8dbc492 ("powerpc/8xx: Fix
Oops with STRICT_KERNEL_RWX without DEBUG_RODATA_TEST"), the selection
of STRICT_KERNEL_RWX without selecting DEBUG_RODATA_TEST has spotted
the lack of the DIRTY bit in the pinned kernel data TLBs.

This problem should have been detected a lot earlier if things had
been working as expected. But due to an incredible level of chance or
mishap, this went undetected because of a set of bugs: In fact the
DTLBs were not pinned, because instead of setting the reserve bit
in MD_CTR, it was set in MI_CTR that is the register for ITLBs.

But then, another huge bug was there: the physical address was
reset to 0 at the boundary between RO and RW areas, leading to the
same physical space being mapped at both 0xc0000000 and 0xc8000000.
This had by miracle no consequence until now because the entry was
not really pinned so it was overwritten soon enough to go undetected.

Of course, now that we really pin the DTLBs, it must be fixed as well.

Fixes: f76c8f6d257c ("powerpc/8xx: Add function to set pinned TLBs")
Cc: stable@vger.kernel.org # v5.8+
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Depends-on: c12ab8dbc492 ("powerpc/8xx: Fix Oops with STRICT_KERNEL_RWX without DEBUG_RODATA_TEST")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a21e9a057fe2d247a535aff0d157a54eefee017a.1636963688.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/head_8xx.S | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 896a1f8d3e6ac..a61b4ff3b7102 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -766,6 +766,7 @@ _GLOBAL(mmu_pin_tlb)
 #ifdef CONFIG_PIN_TLB_DATA
 	LOAD_REG_IMMEDIATE(r6, PAGE_OFFSET)
 	LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG | _PMD_ACCESSED)
+	li	r8, 0
 #ifdef CONFIG_PIN_TLB_IMMR
 	li	r0, 3
 #else
@@ -774,26 +775,26 @@ _GLOBAL(mmu_pin_tlb)
 	mtctr	r0
 	cmpwi	r4, 0
 	beq	4f
-	LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
 	LOAD_REG_ADDR(r9, _sinittext)
 
 2:	ori	r0, r6, MD_EVALID
+	ori	r12, r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT
 	mtspr	SPRN_MD_CTR, r5
 	mtspr	SPRN_MD_EPN, r0
 	mtspr	SPRN_MD_TWC, r7
-	mtspr	SPRN_MD_RPN, r8
+	mtspr	SPRN_MD_RPN, r12
 	addi	r5, r5, 0x100
 	addis	r6, r6, SZ_8M@h
 	addis	r8, r8, SZ_8M@h
 	cmplw	r6, r9
 	bdnzt	lt, 2b
-
-4:	LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT)
+4:
 2:	ori	r0, r6, MD_EVALID
+	ori	r12, r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT
 	mtspr	SPRN_MD_CTR, r5
 	mtspr	SPRN_MD_EPN, r0
 	mtspr	SPRN_MD_TWC, r7
-	mtspr	SPRN_MD_RPN, r8
+	mtspr	SPRN_MD_RPN, r12
 	addi	r5, r5, 0x100
 	addis	r6, r6, SZ_8M@h
 	addis	r8, r8, SZ_8M@h
@@ -814,7 +815,7 @@ _GLOBAL(mmu_pin_tlb)
 #endif
 #if defined(CONFIG_PIN_TLB_IMMR) || defined(CONFIG_PIN_TLB_DATA)
 	lis	r0, (MD_RSV4I | MD_TWAM)@h
-	mtspr	SPRN_MI_CTR, r0
+	mtspr	SPRN_MD_CTR, r0
 #endif
 	mtspr	SPRN_SRR1, r10
 	mtspr	SPRN_SRR0, r11
-- 
GitLab


From b1cf0d2fc4e4bb52adca636c30030ab94f1a3deb Mon Sep 17 00:00:00 2001
From: "Ewan D. Milne" <emilne@redhat.com>
Date: Mon, 8 Nov 2021 13:30:12 -0500
Subject: [PATCH 1659/4878] scsi: qla2xxx: Fix mailbox direction flags in
 qla2xxx_get_adapter_id()

commit 392006871bb26166bcfafa56faf49431c2cfaaa8 upstream.

The SCM changes set the flags in mcp->out_mb instead of mcp->in_mb so the
data was not actually being read into the mcp->mb[] array from the adapter.

Link: https://lore.kernel.org/r/20211108183012.13895-1-emilne@redhat.com
Fixes: 9f2475fe7406 ("scsi: qla2xxx: SAN congestion management implementation")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/qla2xxx/qla_mbx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 4ebd8851a0c9f..734745f450211 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -1650,10 +1650,8 @@ qla2x00_get_adapter_id(scsi_qla_host_t *vha, uint16_t *id, uint8_t *al_pa,
 		mcp->in_mb |= MBX_13|MBX_12|MBX_11|MBX_10;
 	if (IS_FWI2_CAPABLE(vha->hw))
 		mcp->in_mb |= MBX_19|MBX_18|MBX_17|MBX_16;
-	if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw)) {
-		mcp->in_mb |= MBX_15;
-		mcp->out_mb |= MBX_7|MBX_21|MBX_22|MBX_23;
-	}
+	if (IS_QLA27XX(vha->hw) || IS_QLA28XX(vha->hw))
+		mcp->in_mb |= MBX_15|MBX_21|MBX_22|MBX_23;
 
 	mcp->tov = MBX_TOV_SECONDS;
 	mcp->flags = 0;
-- 
GitLab


From 63e2f34abc22004011fa6bf8b402681dae103b2a Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Tue, 16 Nov 2021 11:31:01 +0800
Subject: [PATCH 1660/4878] s390/kexec: fix memory leak of ipl report buffer

commit 4aa9340584e37debef06fa99b56d064beb723891 upstream.

unreferenced object 0x38000195000 (size 4096):
  comm "kexec", pid 8548, jiffies 4294953647 (age 32443.270s)
  hex dump (first 32 bytes):
    00 00 00 c8 20 00 00 00 00 00 00 c0 02 80 00 00  .... ...........
    40 40 40 40 40 40 40 40 00 00 00 00 00 00 00 00  @@@@@@@@........
  backtrace:
    [<0000000011a2f199>] __vmalloc_node_range+0xc0/0x140
    [<0000000081fa2752>] vzalloc+0x5a/0x70
    [<0000000063a4c92d>] ipl_report_finish+0x2c/0x180
    [<00000000553304da>] kexec_file_add_ipl_report+0xf4/0x150
    [<00000000862d033f>] kexec_file_add_components+0x124/0x160
    [<000000000d2717bb>] arch_kexec_kernel_image_load+0x62/0x90
    [<000000002e0373b6>] kimage_file_alloc_init+0x1aa/0x2e0
    [<0000000060f2d14f>] __do_sys_kexec_file_load+0x17c/0x2c0
    [<000000008c86fe5a>] __s390x_sys_kexec_file_load+0x40/0x50
    [<000000001fdb9dac>] __do_syscall+0x1bc/0x1f0
    [<000000003ee4258d>] system_call+0x78/0xa0

Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
Fixes: 99feaa717e55 ("s390/kexec_file: Create ipl report and pass to next kernel")
Cc: <stable@vger.kernel.org> # v5.2: 20c76e242e70: s390/kexec: fix return code handling
Cc: <stable@vger.kernel.org> # v5.2
Link: https://lore.kernel.org/r/20211116033101.GD21646@MiWiFi-R3L-srv
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/include/asm/kexec.h         |  6 ++++++
 arch/s390/kernel/machine_kexec_file.c | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
index ea398a05f6432..7f3c9ac34bd8d 100644
--- a/arch/s390/include/asm/kexec.h
+++ b/arch/s390/include/asm/kexec.h
@@ -74,6 +74,12 @@ void *kexec_file_add_components(struct kimage *image,
 int arch_kexec_do_relocs(int r_type, void *loc, unsigned long val,
 			 unsigned long addr);
 
+#define ARCH_HAS_KIMAGE_ARCH
+
+struct kimage_arch {
+	void *ipl_buf;
+};
+
 extern const struct kexec_file_ops s390_kexec_image_ops;
 extern const struct kexec_file_ops s390_kexec_elf_ops;
 
diff --git a/arch/s390/kernel/machine_kexec_file.c b/arch/s390/kernel/machine_kexec_file.c
index c1090f0b1f6a6..e7435f3a3d2d2 100644
--- a/arch/s390/kernel/machine_kexec_file.c
+++ b/arch/s390/kernel/machine_kexec_file.c
@@ -12,6 +12,7 @@
 #include <linux/kexec.h>
 #include <linux/module_signature.h>
 #include <linux/verification.h>
+#include <linux/vmalloc.h>
 #include <asm/boot_data.h>
 #include <asm/ipl.h>
 #include <asm/setup.h>
@@ -206,6 +207,7 @@ static int kexec_file_add_ipl_report(struct kimage *image,
 		goto out;
 	buf.bufsz = data->report->size;
 	buf.memsz = buf.bufsz;
+	image->arch.ipl_buf = buf.buffer;
 
 	data->memsz += buf.memsz;
 
@@ -327,3 +329,11 @@ int arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
 
 	return kexec_image_probe_default(image, buf, buf_len);
 }
+
+int arch_kimage_file_post_load_cleanup(struct kimage *image)
+{
+	vfree(image->arch.ipl_buf);
+	image->arch.ipl_buf = NULL;
+
+	return kexec_image_post_load_cleanup_default(image);
+}
-- 
GitLab


From cc73242889b5d24a7449bb1f8ca46d2768c3496f Mon Sep 17 00:00:00 2001
From: Alistair Delva <adelva@google.com>
Date: Mon, 15 Nov 2021 18:16:55 +0000
Subject: [PATCH 1661/4878] block: Check ADMIN before NICE for IOPRIO_CLASS_RT

commit 94c4b4fd25e6c3763941bdec3ad54f2204afa992 upstream.

Booting to Android userspace on 5.14 or newer triggers the following
SELinux denial:

avc: denied { sys_nice } for comm="init" capability=23
     scontext=u:r:init:s0 tcontext=u:r:init:s0 tclass=capability
     permissive=0

Init is PID 0 running as root, so it already has CAP_SYS_ADMIN. For
better compatibility with older SEPolicy, check ADMIN before NICE.

Fixes: 9d3a39a5f1e4 ("block: grant IOPRIO_CLASS_RT to CAP_SYS_NICE")
Signed-off-by: Alistair Delva <adelva@google.com>
Cc: Khazhismel Kumykov <khazhy@google.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Paul Moore <paul@paul-moore.com>
Cc: selinux@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: kernel-team@android.com
Cc: stable@vger.kernel.org # v5.14+
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Serge Hallyn <serge@hallyn.com>
Link: https://lore.kernel.org/r/20211115181655.3608659-1-adelva@google.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/ioprio.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/block/ioprio.c b/block/ioprio.c
index 364d2294ba904..84da6c71b2ccb 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -69,7 +69,14 @@ int ioprio_check_cap(int ioprio)
 
 	switch (class) {
 		case IOPRIO_CLASS_RT:
-			if (!capable(CAP_SYS_NICE) && !capable(CAP_SYS_ADMIN))
+			/*
+			 * Originally this only checked for CAP_SYS_ADMIN,
+			 * which was implicitly allowed for pid 0 by security
+			 * modules such as SELinux. Make sure we check
+			 * CAP_SYS_ADMIN first to avoid a denial/avc for
+			 * possibly missing CAP_SYS_NICE permission.
+			 */
+			if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_NICE))
 				return -EPERM;
 			fallthrough;
 			/* rt has prio field too */
-- 
GitLab


From 6b43cf113a382694da8c3c63ab9ef41018b8c49e Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Mon, 15 Nov 2021 15:18:36 +0200
Subject: [PATCH 1662/4878] KVM: nVMX: don't use vcpu->arch.efer when checking
 host state on nested state load

commit af957eebfcc17433ee83ab85b1195a933ab5049c upstream.

When loading nested state, don't use check vcpu->arch.efer to get the
L1 host's 64-bit vs. 32-bit state and don't check it for consistency
with respect to VM_EXIT_HOST_ADDR_SPACE_SIZE, as register state in vCPU
may be stale when KVM_SET_NESTED_STATE is called---and architecturally
does not exist.  When restoring L2 state in KVM, the CPU is placed in
non-root where nested VMX code has no snapshot of L1 host state: VMX
(conditionally) loads host state fields loaded on VM-exit, but they need
not correspond to the state before entry.  A simple case occurs in KVM
itself, where the host RIP field points to vmx_vmexit rather than the
instruction following vmlaunch/vmresume.

However, for the particular case of L1 being in 32- or 64-bit mode
on entry, the exit controls can be treated instead as the source of
truth regarding the state of L1 on entry, and can be used to check
that vmcs12.VM_EXIT_HOST_ADDR_SPACE_SIZE matches vmcs12.HOST_EFER if
vmcs12.VM_EXIT_LOAD_IA32_EFER is set.  The consistency check on CPU
EFER vs. vmcs12.VM_EXIT_HOST_ADDR_SPACE_SIZE, instead, happens only
on VM-Enter.  That's because, again, there's conceptually no "current"
L1 EFER to check on KVM_SET_NESTED_STATE.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20211115131837.195527-2-mlevitsk@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/nested.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index d5f24a2f3e916..257ec2cbf69a4 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2851,6 +2851,17 @@ static int nested_vmx_check_controls(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static int nested_vmx_check_address_space_size(struct kvm_vcpu *vcpu,
+				       struct vmcs12 *vmcs12)
+{
+#ifdef CONFIG_X86_64
+	if (CC(!!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE) !=
+		!!(vcpu->arch.efer & EFER_LMA)))
+		return -EINVAL;
+#endif
+	return 0;
+}
+
 static int nested_vmx_check_host_state(struct kvm_vcpu *vcpu,
 				       struct vmcs12 *vmcs12)
 {
@@ -2875,18 +2886,16 @@ static int nested_vmx_check_host_state(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 
 #ifdef CONFIG_X86_64
-	ia32e = !!(vcpu->arch.efer & EFER_LMA);
+	ia32e = !!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE);
 #else
 	ia32e = false;
 #endif
 
 	if (ia32e) {
-		if (CC(!(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE)) ||
-		    CC(!(vmcs12->host_cr4 & X86_CR4_PAE)))
+		if (CC(!(vmcs12->host_cr4 & X86_CR4_PAE)))
 			return -EINVAL;
 	} else {
-		if (CC(vmcs12->vm_exit_controls & VM_EXIT_HOST_ADDR_SPACE_SIZE) ||
-		    CC(vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE) ||
+		if (CC(vmcs12->vm_entry_controls & VM_ENTRY_IA32E_MODE) ||
 		    CC(vmcs12->host_cr4 & X86_CR4_PCIDE) ||
 		    CC((vmcs12->host_rip) >> 32))
 			return -EINVAL;
@@ -3555,6 +3564,9 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 	if (nested_vmx_check_controls(vcpu, vmcs12))
 		return nested_vmx_fail(vcpu, VMXERR_ENTRY_INVALID_CONTROL_FIELD);
 
+	if (nested_vmx_check_address_space_size(vcpu, vmcs12))
+		return nested_vmx_fail(vcpu, VMXERR_ENTRY_INVALID_HOST_STATE_FIELD);
+
 	if (nested_vmx_check_host_state(vcpu, vmcs12))
 		return nested_vmx_fail(vcpu, VMXERR_ENTRY_INVALID_HOST_STATE_FIELD);
 
-- 
GitLab


From 5875f87e2fc9930463e56cbd25ca2c961ef31b45 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 4 Nov 2021 15:22:35 +0100
Subject: [PATCH 1663/4878] udf: Fix crash after seekdir

commit a48fc69fe6588b48d878d69de223b91a386a7cb4 upstream.

udf_readdir() didn't validate the directory position it should start
reading from. Thus when user uses lseek(2) on directory file descriptor
it can trick udf_readdir() into reading from a position in the middle of
directory entry which then upsets directory parsing code resulting in
errors or even possible kernel crashes. Similarly when the directory is
modified between two readdir calls, the directory position need not be
valid anymore.

Add code to validate current offset in the directory. This is actually
rather expensive for UDF as we need to read from the beginning of the
directory and parse all directory entries. This is because in UDF a
directory is just a stream of data containing directory entries and
since file names are fully under user's control we cannot depend on
detecting magic numbers and checksums in the header of directory entry
as a malicious attacker could fake them. We skip this step if we detect
that nothing changed since the last readdir call.

Reported-by: Nathan Wilson <nate@chickenbrittle.com>
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/udf/dir.c   | 32 ++++++++++++++++++++++++++++++--
 fs/udf/namei.c |  3 +++
 fs/udf/super.c |  2 ++
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index c19dba45aa209..d0f92a52e3bab 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -31,6 +31,7 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/bio.h>
+#include <linux/iversion.h>
 
 #include "udf_i.h"
 #include "udf_sb.h"
@@ -44,7 +45,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 	struct fileIdentDesc *fi = NULL;
 	struct fileIdentDesc cfi;
 	udf_pblk_t block, iblock;
-	loff_t nf_pos;
+	loff_t nf_pos, emit_pos = 0;
 	int flen;
 	unsigned char *fname = NULL, *copy_name = NULL;
 	unsigned char *nameptr;
@@ -58,6 +59,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 	int i, num, ret = 0;
 	struct extent_position epos = { NULL, 0, {0, 0} };
 	struct super_block *sb = dir->i_sb;
+	bool pos_valid = false;
 
 	if (ctx->pos == 0) {
 		if (!dir_emit_dot(file, ctx))
@@ -68,6 +70,21 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 	if (nf_pos >= size)
 		goto out;
 
+	/*
+	 * Something changed since last readdir (either lseek was called or dir
+	 * changed)?  We need to verify the position correctly points at the
+	 * beginning of some dir entry so that the directory parsing code does
+	 * not get confused. Since UDF does not have any reliable way of
+	 * identifying beginning of dir entry (names are under user control),
+	 * we need to scan the directory from the beginning.
+	 */
+	if (!inode_eq_iversion(dir, file->f_version)) {
+		emit_pos = nf_pos;
+		nf_pos = 0;
+	} else {
+		pos_valid = true;
+	}
+
 	fname = kmalloc(UDF_NAME_LEN, GFP_NOFS);
 	if (!fname) {
 		ret = -ENOMEM;
@@ -123,13 +140,21 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 
 	while (nf_pos < size) {
 		struct kernel_lb_addr tloc;
+		loff_t cur_pos = nf_pos;
 
-		ctx->pos = (nf_pos >> 2) + 1;
+		/* Update file position only if we got past the current one */
+		if (nf_pos >= emit_pos) {
+			ctx->pos = (nf_pos >> 2) + 1;
+			pos_valid = true;
+		}
 
 		fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc,
 					&elen, &offset);
 		if (!fi)
 			goto out;
+		/* Still not at offset where user asked us to read from? */
+		if (cur_pos < emit_pos)
+			continue;
 
 		liu = le16_to_cpu(cfi.lengthOfImpUse);
 		lfi = cfi.lengthFileIdent;
@@ -187,8 +212,11 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 	} /* end while */
 
 	ctx->pos = (nf_pos >> 2) + 1;
+	pos_valid = true;
 
 out:
+	if (pos_valid)
+		file->f_version = inode_query_iversion(dir);
 	if (fibh.sbh != fibh.ebh)
 		brelse(fibh.ebh);
 	brelse(fibh.sbh);
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index f4a72ff8cf959..9f3aced46c68f 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -30,6 +30,7 @@
 #include <linux/sched.h>
 #include <linux/crc-itu-t.h>
 #include <linux/exportfs.h>
+#include <linux/iversion.h>
 
 static inline int udf_match(int len1, const unsigned char *name1, int len2,
 			    const unsigned char *name2)
@@ -135,6 +136,8 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
 			mark_buffer_dirty_inode(fibh->ebh, inode);
 		mark_buffer_dirty_inode(fibh->sbh, inode);
 	}
+	inode_inc_iversion(inode);
+
 	return 0;
 }
 
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 5d2b820ef303a..3448098e54768 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -57,6 +57,7 @@
 #include <linux/crc-itu-t.h>
 #include <linux/log2.h>
 #include <asm/byteorder.h>
+#include <linux/iversion.h>
 
 #include "udf_sb.h"
 #include "udf_i.h"
@@ -149,6 +150,7 @@ static struct inode *udf_alloc_inode(struct super_block *sb)
 	init_rwsem(&ei->i_data_sem);
 	ei->cached_extent.lstart = -1;
 	spin_lock_init(&ei->i_extent_cache_lock);
+	inode_set_iversion(&ei->vfs_inode, 1);
 
 	return &ei->vfs_inode;
 }
-- 
GitLab


From 6289b494b38e352e65bd4b3b75af692d83a7f9b7 Mon Sep 17 00:00:00 2001
From: Meng Li <meng.li@windriver.com>
Date: Mon, 15 Nov 2021 15:04:23 +0800
Subject: [PATCH 1664/4878] net: stmmac: socfpga: add runtime suspend/resume
 callback for stratix10 platform

commit 9119570039481d56350af1c636f040fb300b8cf3 upstream.

According to upstream commit 5ec55823438e("net: stmmac:
add clocks management for gmac driver"), it improve clocks
management for stmmac driver. So, it is necessary to implement
the runtime callback in dwmac-socfpga driver because it doesn't
use the common stmmac_pltfr_pm_ops instance. Otherwise, clocks
are not disabled when system enters suspend status.

Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/stmicro/stmmac/dwmac-socfpga.c   | 24 +++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 70d41783329dd..f37b6d57b2fe2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -485,8 +485,28 @@ static int socfpga_dwmac_resume(struct device *dev)
 }
 #endif /* CONFIG_PM_SLEEP */
 
-static SIMPLE_DEV_PM_OPS(socfpga_dwmac_pm_ops, stmmac_suspend,
-					       socfpga_dwmac_resume);
+static int __maybe_unused socfpga_dwmac_runtime_suspend(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+
+	stmmac_bus_clks_config(priv, false);
+
+	return 0;
+}
+
+static int __maybe_unused socfpga_dwmac_runtime_resume(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+
+	return stmmac_bus_clks_config(priv, true);
+}
+
+static const struct dev_pm_ops socfpga_dwmac_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(stmmac_suspend, socfpga_dwmac_resume)
+	SET_RUNTIME_PM_OPS(socfpga_dwmac_runtime_suspend, socfpga_dwmac_runtime_resume, NULL)
+};
 
 static const struct socfpga_dwmac_ops socfpga_gen5_ops = {
 	.set_phy_mode = socfpga_gen5_set_phy_mode,
-- 
GitLab


From 6adbc07ebcaf8bead08b21687d49e0fc94400987 Mon Sep 17 00:00:00 2001
From: Nikolay Borisov <nborisov@suse.com>
Date: Tue, 2 Nov 2021 14:49:16 +0200
Subject: [PATCH 1665/4878] btrfs: fix memory ordering between normal and
 ordered work functions

commit 45da9c1767ac31857df572f0a909fbe88fd5a7e9 upstream.

Ordered work functions aren't guaranteed to be handled by the same thread
which executed the normal work functions. The only way execution between
normal/ordered functions is synchronized is via the WORK_DONE_BIT,
unfortunately the used bitops don't guarantee any ordering whatsoever.

This manifested as seemingly inexplicable crashes on ARM64, where
async_chunk::inode is seen as non-null in async_cow_submit which causes
submit_compressed_extents to be called and crash occurs because
async_chunk::inode suddenly became NULL. The call trace was similar to:

    pc : submit_compressed_extents+0x38/0x3d0
    lr : async_cow_submit+0x50/0xd0
    sp : ffff800015d4bc20

    <registers omitted for brevity>

    Call trace:
     submit_compressed_extents+0x38/0x3d0
     async_cow_submit+0x50/0xd0
     run_ordered_work+0xc8/0x280
     btrfs_work_helper+0x98/0x250
     process_one_work+0x1f0/0x4ac
     worker_thread+0x188/0x504
     kthread+0x110/0x114
     ret_from_fork+0x10/0x18

Fix this by adding respective barrier calls which ensure that all
accesses preceding setting of WORK_DONE_BIT are strictly ordered before
setting the flag. At the same time add a read barrier after reading of
WORK_DONE_BIT in run_ordered_work which ensures all subsequent loads
would be strictly ordered after reading the bit. This in turn ensures
are all accesses before WORK_DONE_BIT are going to be strictly ordered
before any access that can occur in ordered_func.

Reported-by: Chris Murphy <lists@colorremedies.com>
Fixes: 08a9ff326418 ("btrfs: Added btrfs_workqueue_struct implemented ordered execution based on kernel workqueue")
CC: stable@vger.kernel.org # 4.4+
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2011928
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Tested-by: Chris Murphy <chris@colorremedies.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/async-thread.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 309516e6a9682..43c89952b7d25 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -234,6 +234,13 @@ static void run_ordered_work(struct __btrfs_workqueue *wq,
 				  ordered_list);
 		if (!test_bit(WORK_DONE_BIT, &work->flags))
 			break;
+		/*
+		 * Orders all subsequent loads after reading WORK_DONE_BIT,
+		 * paired with the smp_mb__before_atomic in btrfs_work_helper
+		 * this guarantees that the ordered function will see all
+		 * updates from ordinary work function.
+		 */
+		smp_rmb();
 
 		/*
 		 * we are going to call the ordered done function, but
@@ -317,6 +324,13 @@ static void btrfs_work_helper(struct work_struct *normal_work)
 	thresh_exec_hook(wq);
 	work->func(work);
 	if (need_order) {
+		/*
+		 * Ensures all memory accesses done in the work function are
+		 * ordered before setting the WORK_DONE_BIT. Ensuring the thread
+		 * which is going to executed the ordered work sees them.
+		 * Pairs with the smp_rmb in run_ordered_work.
+		 */
+		smp_mb__before_atomic();
 		set_bit(WORK_DONE_BIT, &work->flags);
 		run_ordered_work(wq, work);
 	} else {
-- 
GitLab


From 1ab297809de835c2b0d196ed0a0b0b14bd7c7dd1 Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@stackframe.org>
Date: Sun, 14 Nov 2021 17:08:17 +0100
Subject: [PATCH 1666/4878] parisc/sticon: fix reverse colors

commit bec05f33ebc1006899c6d3e59a00c58881fe7626 upstream.

sticon_build_attr() checked the reverse argument and flipped
background and foreground color, but returned the non-reverse
value afterwards. Fix this and also add two local variables
for foreground and background color to make the code easier
to read.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/console/sticon.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 1b451165311c9..40496e9e9b438 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -332,13 +332,13 @@ static u8 sticon_build_attr(struct vc_data *conp, u8 color,
 			    bool blink, bool underline, bool reverse,
 			    bool italic)
 {
-    u8 attr = ((color & 0x70) >> 1) | ((color & 7));
+	u8 fg = color & 7;
+	u8 bg = (color & 0x70) >> 4;
 
-    if (reverse) {
-	color = ((color >> 3) & 0x7) | ((color & 0x7) << 3);
-    }
-
-    return attr;
+	if (reverse)
+		return (fg << 3) | bg;
+	else
+		return (bg << 3) | fg;
 }
 
 static void sticon_invert_region(struct vc_data *conp, u16 *p, int count)
-- 
GitLab


From 7b97b5776daa0b39dbdadfea176f9cc0646d4a66 Mon Sep 17 00:00:00 2001
From: Nguyen Dinh Phi <phind.uet@gmail.com>
Date: Thu, 28 Oct 2021 01:37:22 +0800
Subject: [PATCH 1667/4878] cfg80211: call cfg80211_stop_ap when switch from
 P2P_GO type

commit 563fbefed46ae4c1f70cffb8eb54c02df480b2c2 upstream.

If the userspace tools switch from NL80211_IFTYPE_P2P_GO to
NL80211_IFTYPE_ADHOC via send_msg(NL80211_CMD_SET_INTERFACE), it
does not call the cleanup cfg80211_stop_ap(), this leads to the
initialization of in-use data. For example, this path re-init the
sdata->assigned_chanctx_list while it is still an element of
assigned_vifs list, and makes that linked list corrupt.

Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Reported-by: syzbot+bbf402b783eeb6d908db@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211027173722.777287-1-phind.uet@gmail.com
Cc: stable@vger.kernel.org
Fixes: ac800140c20e ("cfg80211: .stop_ap when interface is going down")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/wireless/util.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 3f8c46bb6d9a4..4b32e85c2d9a1 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1044,6 +1044,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 
 		switch (otype) {
 		case NL80211_IFTYPE_AP:
+		case NL80211_IFTYPE_P2P_GO:
 			cfg80211_stop_ap(rdev, dev, true);
 			break;
 		case NL80211_IFTYPE_ADHOC:
-- 
GitLab


From 3d68d6ee83144044f610d67304cc194c2af7d0c5 Mon Sep 17 00:00:00 2001
From: Alvin Lee <Alvin.Lee2@amd.com>
Date: Fri, 30 Jul 2021 16:55:06 -0400
Subject: [PATCH 1668/4878] drm/amd/display: Update swizzle mode enums

commit 58065a1e524de30df9a2d8214661d5d7eed0a2d9 upstream.

[Why]
Swizzle mode enum for DC_SW_VAR_R_X was existing,
but not mapped correctly.

[How]
Update mapping and conversion for DC_SW_VAR_R_X.

Reviewed-by: XiangBing Foo <XiangBing.Foo@amd.com>
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Cc: stable@vger.kernel.org
Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c   | 4 +++-
 drivers/gpu/drm/amd/display/dc/dml/display_mode_enums.h | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 3121816546467..53ac826935328 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1852,7 +1852,9 @@ static void swizzle_to_dml_params(
 	case DC_SW_VAR_D_X:
 		*sw_mode = dm_sw_var_d_x;
 		break;
-
+	case DC_SW_VAR_R_X:
+		*sw_mode = dm_sw_var_r_x;
+		break;
 	default:
 		ASSERT(0); /* Not supported */
 		break;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_enums.h b/drivers/gpu/drm/amd/display/dc/dml/display_mode_enums.h
index 64f9c735f74d8..e73cee275729c 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_enums.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_enums.h
@@ -80,11 +80,11 @@ enum dm_swizzle_mode {
 	dm_sw_SPARE_13 = 24,
 	dm_sw_64kb_s_x = 25,
 	dm_sw_64kb_d_x = 26,
-	dm_sw_SPARE_14 = 27,
+	dm_sw_64kb_r_x = 27,
 	dm_sw_SPARE_15 = 28,
 	dm_sw_var_s_x = 29,
 	dm_sw_var_d_x = 30,
-	dm_sw_64kb_r_x,
+	dm_sw_var_r_x = 31,
 	dm_sw_gfx7_2d_thin_l_vp,
 	dm_sw_gfx7_2d_thin_gl,
 };
-- 
GitLab


From 65517975cb195955bf43d91cbb77bbc309253e0b Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:53:53 +0200
Subject: [PATCH 1669/4878] drm/udl: fix control-message timeout

commit 5591c8f79db1729d9c5ac7f5b4d3a5c26e262d93 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 5320918b9a87 ("drm/udl: initial UDL driver (v4)")
Cc: stable@vger.kernel.org      # 3.4
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20211025115353.5089-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/udl/udl_connector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index cdc1c42e16695..aac41a809924e 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -30,7 +30,7 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block,
 		ret = usb_control_msg(udl->udev,
 				      usb_rcvctrlpipe(udl->udev, 0),
 					  (0x02), (0x80 | (0x02 << 5)), bval,
-					  0xA1, read_buff, 2, HZ);
+					  0xA1, read_buff, 2, 1000);
 		if (ret < 1) {
 			DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret);
 			kfree(read_buff);
-- 
GitLab


From 9221aff33edb627ea52a51379862f46e63e7c0c9 Mon Sep 17 00:00:00 2001
From: Jeremy Cline <jcline@redhat.com>
Date: Wed, 25 Nov 2020 15:26:47 -0500
Subject: [PATCH 1670/4878] drm/nouveau: Add a dedicated mutex for the clients
 list

commit abae9164a421bc4a41a3769f01ebcd1f9d955e0e upstream.

Rather than protecting the nouveau_drm clients list with the lock within
the "client" nouveau_cli, add a dedicated lock to serialize access to
the list. This is both clearer and necessary to avoid lockdep being
upset with us when we need to iterate through all the clients in the
list and potentially lock their mutex, which is the same class as the
lock protecting the entire list.

Cc: stable@vger.kernel.org # 5.4+
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Tested-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201125202648.5220-3-jcline@redhat.com
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/14
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nouveau_drm.c | 10 ++++++----
 drivers/gpu/drm/nouveau/nouveau_drv.h |  5 +++++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 42fc5c813a9bb..89f72b91c8c6e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -557,6 +557,7 @@ nouveau_drm_device_init(struct drm_device *dev)
 		nvkm_dbgopt(nouveau_debug, "DRM");
 
 	INIT_LIST_HEAD(&drm->clients);
+	mutex_init(&drm->clients_lock);
 	spin_lock_init(&drm->tile.lock);
 
 	/* workaround an odd issue on nvc1 by disabling the device's
@@ -654,6 +655,7 @@ nouveau_drm_device_fini(struct drm_device *dev)
 	nouveau_cli_fini(&drm->client);
 	nouveau_cli_fini(&drm->master);
 	nvif_parent_dtor(&drm->parent);
+	mutex_destroy(&drm->clients_lock);
 	kfree(drm);
 }
 
@@ -1086,9 +1088,9 @@ nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 
 	fpriv->driver_priv = cli;
 
-	mutex_lock(&drm->client.mutex);
+	mutex_lock(&drm->clients_lock);
 	list_add(&cli->head, &drm->clients);
-	mutex_unlock(&drm->client.mutex);
+	mutex_unlock(&drm->clients_lock);
 
 done:
 	if (ret && cli) {
@@ -1114,9 +1116,9 @@ nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 		nouveau_abi16_fini(cli->abi16);
 	mutex_unlock(&cli->mutex);
 
-	mutex_lock(&drm->client.mutex);
+	mutex_lock(&drm->clients_lock);
 	list_del(&cli->head);
-	mutex_unlock(&drm->client.mutex);
+	mutex_unlock(&drm->clients_lock);
 
 	nouveau_cli_fini(cli);
 	kfree(cli);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index b8025507a9e4c..8b252dca0fc3e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -142,6 +142,11 @@ struct nouveau_drm {
 
 	struct list_head clients;
 
+	/**
+	 * @clients_lock: Protects access to the @clients list of &struct nouveau_cli.
+	 */
+	struct mutex clients_lock;
+
 	u8 old_pm_cap;
 
 	struct {
-- 
GitLab


From c81c90fbf5775ed1b907230eaaa766fa0e1b7cfa Mon Sep 17 00:00:00 2001
From: Jeremy Cline <jcline@redhat.com>
Date: Wed, 25 Nov 2020 15:26:46 -0500
Subject: [PATCH 1671/4878] drm/nouveau: use drm_dev_unplug() during device
 removal

commit aff2299e0d81b26304ccc6a1ec0170e437f38efc upstream.

Nouveau does not currently support hot-unplugging, but it still makes
sense to switch from drm_dev_unregister() to drm_dev_unplug().
drm_dev_unplug() calls drm_dev_unregister() after marking the device as
unplugged, but only after any device critical sections are finished.

Since nouveau isn't using drm_dev_enter() and drm_dev_exit(), there are
no critical sections so this is nearly functionally equivalent. However,
the DRM layer does check to see if the device is unplugged, and if it is
returns appropriate error codes.

In the future nouveau can add critical sections in order to truly
support hot-unplugging.

Cc: stable@vger.kernel.org # 5.4+
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Tested-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201125202648.5220-2-jcline@redhat.com
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/14
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nouveau_drm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 89f72b91c8c6e..8201e9d11df94 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -794,7 +794,7 @@ nouveau_drm_device_remove(struct drm_device *dev)
 	struct nvkm_client *client;
 	struct nvkm_device *device;
 
-	drm_dev_unregister(dev);
+	drm_dev_unplug(dev);
 
 	dev->irq_enabled = false;
 	client = nvxx_client(&drm->client.base);
-- 
GitLab


From 82de15ca6b5574fc0e2f54daa1de00b5b2dcf32f Mon Sep 17 00:00:00 2001
From: Jeremy Cline <jcline@redhat.com>
Date: Wed, 25 Nov 2020 15:26:48 -0500
Subject: [PATCH 1672/4878] drm/nouveau: clean up all clients on device removal

commit f55aaf63bde0d0336c3823bb3713bd4a464abbcf upstream.

The postclose handler can run after the device has been removed (or the
driver has been unbound) since userspace clients are free to hold the
file open as long as they want. Because the device removal callback
frees the entire nouveau_drm structure, any reference to it in the
postclose handler will result in a use-after-free.

To reproduce this, one must simply open the device file, unbind the
driver (or physically remove the device), and then close the device
file. This was found and can be reproduced easily with the IGT
core_hotunplug tests.

To avoid this, all clients are cleaned up in the device finalization
rather than deferring it to the postclose handler, and the postclose
handler is protected by a critical section which ensures the
drm_dev_unplug() and the postclose handler won't race.

This is not an ideal fix, since as I understand the proposed plan for
the kernel<->userspace interface for hotplug support, destroying the
client before the file is closed will cause problems. However, I believe
to properly fix this issue, the lifetime of the nouveau_drm structure
needs to be extended to match the drm_device, and this proved to be a
rather invasive change. Thus, I've broken this out so the fix can be
easily backported.

This fixes with the two previous commits CVE-2020-27820 (Karol).

Cc: stable@vger.kernel.org # 5.4+
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Tested-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201125202648.5220-4-jcline@redhat.com
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/14
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nouveau_drm.c | 30 +++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 8201e9d11df94..ac96b6ab44c07 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -628,6 +628,7 @@ fail_alloc:
 static void
 nouveau_drm_device_fini(struct drm_device *dev)
 {
+	struct nouveau_cli *cli, *temp_cli;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 
 	if (nouveau_pmops_runtime()) {
@@ -652,6 +653,24 @@ nouveau_drm_device_fini(struct drm_device *dev)
 	nouveau_ttm_fini(drm);
 	nouveau_vga_fini(drm);
 
+	/*
+	 * There may be existing clients from as-yet unclosed files. For now,
+	 * clean them up here rather than deferring until the file is closed,
+	 * but this likely not correct if we want to support hot-unplugging
+	 * properly.
+	 */
+	mutex_lock(&drm->clients_lock);
+	list_for_each_entry_safe(cli, temp_cli, &drm->clients, head) {
+		list_del(&cli->head);
+		mutex_lock(&cli->mutex);
+		if (cli->abi16)
+			nouveau_abi16_fini(cli->abi16);
+		mutex_unlock(&cli->mutex);
+		nouveau_cli_fini(cli);
+		kfree(cli);
+	}
+	mutex_unlock(&drm->clients_lock);
+
 	nouveau_cli_fini(&drm->client);
 	nouveau_cli_fini(&drm->master);
 	nvif_parent_dtor(&drm->parent);
@@ -1108,6 +1127,16 @@ nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 {
 	struct nouveau_cli *cli = nouveau_cli(fpriv);
 	struct nouveau_drm *drm = nouveau_drm(dev);
+	int dev_index;
+
+	/*
+	 * The device is gone, and as it currently stands all clients are
+	 * cleaned up in the removal codepath. In the future this may change
+	 * so that we can support hot-unplugging, but for now we immediately
+	 * return to avoid a double-free situation.
+	 */
+	if (!drm_dev_enter(dev, &dev_index))
+		return;
 
 	pm_runtime_get_sync(dev->dev);
 
@@ -1124,6 +1153,7 @@ nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
 	kfree(cli);
 	pm_runtime_mark_last_busy(dev->dev);
 	pm_runtime_put_autosuspend(dev->dev);
+	drm_dev_exit(dev_index);
 }
 
 static const struct drm_ioctl_desc
-- 
GitLab


From 47901b77bf7dc801a084a0b377aee5974d9bc4ce Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Mon, 18 Oct 2021 17:34:17 +0300
Subject: [PATCH 1673/4878] drm/i915/dp: Ensure sink rate values are always
 valid
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 6c34bd4532a3f39952952ddc102737595729afc4 upstream.

Atm, there are no sink rate values set for DP (vs. eDP) sinks until the
DPCD capabilities are successfully read from the sink. During this time
intel_dp->num_common_rates is 0 which can lead to a

intel_dp->common_rates[-1]    (*)

access, which is an undefined behaviour, in the following cases:

- In intel_dp_sync_state(), if the encoder is enabled without a sink
  connected to the encoder's connector (BIOS enabled a monitor, but the
  user unplugged the monitor until the driver loaded).
- In intel_dp_sync_state() if the encoder is enabled with a sink
  connected, but for some reason the DPCD read has failed.
- In intel_dp_compute_link_config() if modesetting a connector without
  a sink connected on it.
- In intel_dp_compute_link_config() if modesetting a connector with a
  a sink connected on it, but before probing the connector first.

To avoid the (*) access in all the above cases, make sure that the sink
rate table - and hence the common rate table - is always valid, by
setting a default minimum sink rate when registering the connector
before anything could use it.

I also considered setting all the DP link rates by default, so that
modesetting with higher resolution modes also succeeds in the last two
cases above. However in case a sink is not connected that would stop
working after the first modeset, due to the LT fallback logic. So this
would need more work, beyond the scope of this fix.

As I mentioned in the previous patch, I don't think the issue this patch
fixes is user visible, however it is an undefined behaviour by
definition and triggers a BUG() in CONFIG_UBSAN builds, hence CC:stable.

v2: Clear the default sink rates, before initializing these for eDP.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4297
References: https://gitlab.freedesktop.org/drm/intel/-/issues/4298
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211018143417.1452632-1-imre.deak@intel.com
(cherry picked from commit 3f61ef9777c0ab0f03f4af0ed6fd3e5250537a8d)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 65d73eb5e155c..1c1931f5c958b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -154,6 +154,12 @@ static void vlv_steal_power_sequencer(struct drm_i915_private *dev_priv,
 				      enum pipe pipe);
 static void intel_dp_unset_edid(struct intel_dp *intel_dp);
 
+static void intel_dp_set_default_sink_rates(struct intel_dp *intel_dp)
+{
+	intel_dp->sink_rates[0] = 162000;
+	intel_dp->num_sink_rates = 1;
+}
+
 /* update sink rates from dpcd */
 static void intel_dp_set_sink_rates(struct intel_dp *intel_dp)
 {
@@ -4678,6 +4684,9 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp)
 	 */
 	intel_psr_init_dpcd(intel_dp);
 
+	/* Clear the default sink rates */
+	intel_dp->num_sink_rates = 0;
+
 	/* Read the eDP 1.4+ supported link rates. */
 	if (intel_dp->edp_dpcd[0] >= DP_EDP_14) {
 		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
@@ -7779,6 +7788,8 @@ intel_dp_init_connector(struct intel_digital_port *dig_port,
 		return false;
 
 	intel_dp_set_source_rates(intel_dp);
+	intel_dp_set_default_sink_rates(intel_dp);
+	intel_dp_set_common_rates(intel_dp);
 
 	intel_dp->reset_link_params = true;
 	intel_dp->pps_pipe = INVALID_PIPE;
-- 
GitLab


From 04c586a601dc0acb8e739205db350ab660dffc4f Mon Sep 17 00:00:00 2001
From: hongao <hongao@uniontech.com>
Date: Thu, 11 Nov 2021 11:32:07 +0800
Subject: [PATCH 1674/4878] drm/amdgpu: fix set scaling mode Full/Full
 aspect/Center not works on vga and dvi connectors

commit bf552083916a7f8800477b5986940d1c9a31b953 upstream.

amdgpu_connector_vga_get_modes missed function amdgpu_get_native_mode
which assign amdgpu_encoder->native_mode with *preferred_mode result in
amdgpu_encoder->native_mode.clock always be 0. That will cause
amdgpu_connector_set_property returned early on:
if ((rmx_type != DRM_MODE_SCALE_NONE) &&
	(amdgpu_encoder->native_mode.clock == 0))
when we try to set scaling mode Full/Full aspect/Center.
Add the missing function to amdgpu_connector_vga_get_mode can fix this.
It also works on dvi connectors because
amdgpu_connector_dvi_helper_funcs.get_mode use the same method.

Signed-off-by: hongao <hongao@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index b9c11c2b2885a..0de66f59adb8a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -827,6 +827,7 @@ static int amdgpu_connector_vga_get_modes(struct drm_connector *connector)
 
 	amdgpu_connector_get_edid(connector);
 	ret = amdgpu_connector_ddc_get_modes(connector);
+	amdgpu_get_native_mode(connector);
 
 	return ret;
 }
-- 
GitLab


From ddd4e46cff40bf086cdb880490466c76abf7d3a2 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 22 Sep 2021 12:10:59 +0300
Subject: [PATCH 1675/4878] scsi: ufs: core: Fix task management completion

commit f5ef336fd2e4c36dedae4e7ca66cf5349d6fda62 upstream.

The UFS driver uses blk_mq_tagset_busy_iter() when identifying task
management requests to complete, however blk_mq_tagset_busy_iter() doesn't
work.

blk_mq_tagset_busy_iter() only iterates requests dispatched by the block
layer. That appears as if it might have started since commit 37f4a24c2469
("blk-mq: centralise related handling into blk_mq_get_driver_tag") which
removed 'data->hctx->tags->rqs[rq->tag] = rq' from blk_mq_rq_ctx_init()
which gets called:

	blk_get_request
		blk_mq_alloc_request
			__blk_mq_alloc_request
				blk_mq_rq_ctx_init

Since UFS task management requests are not dispatched by the block layer,
hctx->tags->rqs[rq->tag] remains NULL, and since blk_mq_tagset_busy_iter()
relies on finding requests using hctx->tags->rqs[rq->tag], UFS task
management requests are never found by blk_mq_tagset_busy_iter().

By using blk_mq_tagset_busy_iter(), the UFS driver was relying on internal
details of the block layer, which was fragile and subsequently got
broken. Fix by removing the use of blk_mq_tagset_busy_iter() and having the
driver keep track of task management requests.

Link: https://lore.kernel.org/r/20210922091059.4040-1-adrian.hunter@intel.com
Fixes: 1235fc569e0b ("scsi: ufs: core: Fix task management request completion timeout")
Fixes: 69a6c269c097 ("scsi: ufs: Use blk_{get,put}_request() to allocate and free TMFs")
Cc: stable@vger.kernel.org
Tested-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/ufs/ufshcd.c | 52 +++++++++++++++++----------------------
 drivers/scsi/ufs/ufshcd.h |  1 +
 2 files changed, 24 insertions(+), 29 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 930f35863cbb5..5fd0a6ed181c9 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6099,27 +6099,6 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba)
 	return retval;
 }
 
-struct ctm_info {
-	struct ufs_hba	*hba;
-	unsigned long	pending;
-	unsigned int	ncpl;
-};
-
-static bool ufshcd_compl_tm(struct request *req, void *priv, bool reserved)
-{
-	struct ctm_info *const ci = priv;
-	struct completion *c;
-
-	WARN_ON_ONCE(reserved);
-	if (test_bit(req->tag, &ci->pending))
-		return true;
-	ci->ncpl++;
-	c = req->end_io_data;
-	if (c)
-		complete(c);
-	return true;
-}
-
 /**
  * ufshcd_tmc_handler - handle task management function completion
  * @hba: per adapter instance
@@ -6130,14 +6109,22 @@ static bool ufshcd_compl_tm(struct request *req, void *priv, bool reserved)
  */
 static irqreturn_t ufshcd_tmc_handler(struct ufs_hba *hba)
 {
-	struct request_queue *q = hba->tmf_queue;
-	struct ctm_info ci = {
-		.hba	 = hba,
-		.pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL),
-	};
+	unsigned long pending, issued;
+	irqreturn_t ret = IRQ_NONE;
+	int tag;
+
+	pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
+
+	issued = hba->outstanding_tasks & ~pending;
+	for_each_set_bit(tag, &issued, hba->nutmrs) {
+		struct request *req = hba->tmf_rqs[tag];
+		struct completion *c = req->end_io_data;
+
+		complete(c);
+		ret = IRQ_HANDLED;
+	}
 
-	blk_mq_tagset_busy_iter(q->tag_set, ufshcd_compl_tm, &ci);
-	return ci.ncpl ? IRQ_HANDLED : IRQ_NONE;
+	return ret;
 }
 
 /**
@@ -6267,9 +6254,9 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	ufshcd_hold(hba, false);
 
 	spin_lock_irqsave(host->host_lock, flags);
-	blk_mq_start_request(req);
 
 	task_tag = req->tag;
+	hba->tmf_rqs[req->tag] = req;
 	treq->req_header.dword_0 |= cpu_to_be32(task_tag);
 
 	memcpy(hba->utmrdl_base_addr + task_tag, treq, sizeof(*treq));
@@ -6313,6 +6300,7 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	}
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
+	hba->tmf_rqs[req->tag] = NULL;
 	__clear_bit(task_tag, &hba->outstanding_tasks);
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
@@ -9235,6 +9223,12 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		err = PTR_ERR(hba->tmf_queue);
 		goto free_tmf_tag_set;
 	}
+	hba->tmf_rqs = devm_kcalloc(hba->dev, hba->nutmrs,
+				    sizeof(*hba->tmf_rqs), GFP_KERNEL);
+	if (!hba->tmf_rqs) {
+		err = -ENOMEM;
+		goto free_tmf_queue;
+	}
 
 	/* Reset the attached device */
 	ufshcd_vops_device_reset(hba);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 1ba9c786feb6d..35dd5197ccb96 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -734,6 +734,7 @@ struct ufs_hba {
 
 	struct blk_mq_tag_set tmf_tag_set;
 	struct request_queue *tmf_queue;
+	struct request **tmf_rqs;
 
 	struct uic_command *active_uic_cmd;
 	struct mutex uic_cmd_mutex;
-- 
GitLab


From 86ab0f8ff008964c076784a70eb89503056ce92a Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 8 Nov 2021 08:48:14 +0200
Subject: [PATCH 1676/4878] scsi: ufs: core: Fix task management completion
 timeout race

commit 886fe2915cce6658b0fc19e64b82879325de61ea upstream.

__ufshcd_issue_tm_cmd() clears req->end_io_data after timing out, which
races with the completion function ufshcd_tmc_handler() which expects
req->end_io_data to have a value.

Note __ufshcd_issue_tm_cmd() and ufshcd_tmc_handler() are already
synchronized using hba->tmf_rqs and hba->outstanding_tasks under the
host_lock spinlock.

It is also not necessary (nor typical) to clear req->end_io_data because
the block layer does it before allocating out requests e.g. via
blk_get_request().

So fix by not clearing it.

Link: https://lore.kernel.org/r/20211108064815.569494-2-adrian.hunter@intel.com
Fixes: f5ef336fd2e4 ("scsi: ufs: core: Fix task management completion")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/ufs/ufshcd.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 5fd0a6ed181c9..e3a9a02cadf5a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6280,11 +6280,6 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	err = wait_for_completion_io_timeout(&wait,
 			msecs_to_jiffies(TM_CMD_TIMEOUT));
 	if (!err) {
-		/*
-		 * Make sure that ufshcd_compl_tm() does not trigger a
-		 * use-after-free.
-		 */
-		req->end_io_data = NULL;
 		ufshcd_add_tm_upiu_trace(hba, task_tag, "tm_complete_err");
 		dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n",
 				__func__, tm_function);
-- 
GitLab


From 40bc831ab5f630431010d1ff867390b07418a7ee Mon Sep 17 00:00:00 2001
From: Nadav Amit <namit@vmware.com>
Date: Sun, 21 Nov 2021 12:40:07 -0800
Subject: [PATCH 1677/4878] hugetlbfs: flush TLBs correctly after
 huge_pmd_unshare

commit a4a118f2eead1d6c49e00765de89878288d4b890 upstream.

When __unmap_hugepage_range() calls to huge_pmd_unshare() succeed, a TLB
flush is missing.  This TLB flush must be performed before releasing the
i_mmap_rwsem, in order to prevent an unshared PMDs page from being
released and reused before the TLB flush took place.

Arguably, a comprehensive solution would use mmu_gather interface to
batch the TLB flushes and the PMDs page release, however it is not an
easy solution: (1) try_to_unmap_one() and try_to_migrate_one() also call
huge_pmd_unshare() and they cannot use the mmu_gather interface; and (2)
deferring the release of the page reference for the PMDs page until
after i_mmap_rwsem is dropeed can confuse huge_pmd_unshare() into
thinking PMDs are shared when they are not.

Fix __unmap_hugepage_range() by adding the missing TLB flush, and
forcing a flush when unshare is successful.

Fixes: 24669e58477e ("hugetlb: use mmu_gather instead of a temporary linked list for accumulating pages)" # 3.6
Signed-off-by: Nadav Amit <namit@vmware.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/hugetlb.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 6e92ab0ae070f..fce705fc2848a 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3913,6 +3913,7 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	struct hstate *h = hstate_vma(vma);
 	unsigned long sz = huge_page_size(h);
 	struct mmu_notifier_range range;
+	bool force_flush = false;
 
 	WARN_ON(!is_vm_hugetlb_page(vma));
 	BUG_ON(start & ~huge_page_mask(h));
@@ -3941,10 +3942,8 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 		ptl = huge_pte_lock(h, mm, ptep);
 		if (huge_pmd_unshare(mm, vma, &address, ptep)) {
 			spin_unlock(ptl);
-			/*
-			 * We just unmapped a page of PMDs by clearing a PUD.
-			 * The caller's TLB flush range should cover this area.
-			 */
+			tlb_flush_pmd_range(tlb, address & PUD_MASK, PUD_SIZE);
+			force_flush = true;
 			continue;
 		}
 
@@ -4001,6 +4000,22 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	}
 	mmu_notifier_invalidate_range_end(&range);
 	tlb_end_vma(tlb, vma);
+
+	/*
+	 * If we unshared PMDs, the TLB flush was not recorded in mmu_gather. We
+	 * could defer the flush until now, since by holding i_mmap_rwsem we
+	 * guaranteed that the last refernece would not be dropped. But we must
+	 * do the flushing before we return, as otherwise i_mmap_rwsem will be
+	 * dropped and the last reference to the shared PMDs page might be
+	 * dropped as well.
+	 *
+	 * In theory we could defer the freeing of the PMD pages as well, but
+	 * huge_pmd_unshare() relies on the exact page_count for the PMD page to
+	 * detect sharing, so we cannot defer the release of the page either.
+	 * Instead, do flush now.
+	 */
+	if (force_flush)
+		tlb_flush_mmu_tlbonly(tlb);
 }
 
 void __unmap_hugepage_range_final(struct mmu_gather *tlb,
-- 
GitLab


From 1ae0d59c4f5ed1555d99e139cb68b8e87a5e13eb Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Sun, 7 Nov 2021 08:40:47 +0200
Subject: [PATCH 1678/4878] RDMA/netlink: Add __maybe_unused to static inline
 in C file

commit 83dde7498fefeb920b1def317421262317d178e5 upstream.

Like other commits in the tree add __maybe_unused to a static inline in a
C file because some clang compilers will complain about unused code:

>> drivers/infiniband/core/nldev.c:2543:1: warning: unused function '__chk_RDMA_NL_NLDEV'
   MODULE_ALIAS_RDMA_NETLINK(RDMA_NL_NLDEV, 5);
   ^

Fixes: e3bf14bdc17a ("rdma: Autoload netlink client modules")
Link: https://lore.kernel.org/r/4a8101919b765e01d7fde6f27fd572c958deeb4a.1636267207.git.leonro@nvidia.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/rdma/rdma_netlink.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h
index 2758d9df71ee9..c2a79aeee113c 100644
--- a/include/rdma/rdma_netlink.h
+++ b/include/rdma/rdma_netlink.h
@@ -30,7 +30,7 @@ enum rdma_nl_flags {
  * constant as well and the compiler checks they are the same.
  */
 #define MODULE_ALIAS_RDMA_NETLINK(_index, _val)                                \
-	static inline void __chk_##_index(void)                                \
+	static inline void __maybe_unused __chk_##_index(void)                 \
 	{                                                                      \
 		BUILD_BUG_ON(_index != _val);                                  \
 	}                                                                      \
-- 
GitLab


From b17dd53cac769dd13031b0ca34f90cc65e523fab Mon Sep 17 00:00:00 2001
From: Ondrej Mosnacek <omosnace@redhat.com>
Date: Fri, 19 Nov 2021 14:45:20 +0100
Subject: [PATCH 1679/4878] selinux: fix NULL-pointer dereference when hashtab
 allocation fails

commit dc27f3c5d10c58069672215787a96b4fae01818b upstream.

When the hash table slot array allocation fails in hashtab_init(),
h->size is left initialized with a non-zero value, but the h->htable
pointer is NULL. This may then cause a NULL pointer dereference, since
the policydb code relies on the assumption that even after a failed
hashtab_init(), hashtab_map() and hashtab_destroy() can be safely called
on it. Yet, these detect an empty hashtab only by looking at the size.

Fix this by making sure that hashtab_init() always leaves behind a valid
empty hashtab when the allocation fails.

Cc: stable@vger.kernel.org
Fixes: 03414a49ad5f ("selinux: do not allocate hashtabs dynamically")
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/selinux/ss/hashtab.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c
index dab8c25c739b9..7335f67ce54eb 100644
--- a/security/selinux/ss/hashtab.c
+++ b/security/selinux/ss/hashtab.c
@@ -30,13 +30,20 @@ static u32 hashtab_compute_size(u32 nel)
 
 int hashtab_init(struct hashtab *h, u32 nel_hint)
 {
-	h->size = hashtab_compute_size(nel_hint);
+	u32 size = hashtab_compute_size(nel_hint);
+
+	/* should already be zeroed, but better be safe */
 	h->nel = 0;
-	if (!h->size)
-		return 0;
+	h->size = 0;
+	h->htable = NULL;
 
-	h->htable = kcalloc(h->size, sizeof(*h->htable), GFP_KERNEL);
-	return h->htable ? 0 : -ENOMEM;
+	if (size) {
+		h->htable = kcalloc(size, sizeof(*h->htable), GFP_KERNEL);
+		if (!h->htable)
+			return -ENOMEM;
+		h->size = size;
+	}
+	return 0;
 }
 
 int __hashtab_insert(struct hashtab *h, struct hashtab_node **dst,
-- 
GitLab


From 6186c7b9bdfc915f6a53666ea51ada20ca99dc4c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 5 Nov 2021 10:09:25 +0100
Subject: [PATCH 1680/4878] ASoC: DAPM: Cover regression by kctl change
 notification fix

commit 827b0913a9d9d07a0c3e559dbb20ca4d6d285a54 upstream.

The recent fix for DAPM to correct the kctl change notification by the
commit 5af82c81b2c4 ("ASoC: DAPM: Fix missing kctl change
notifications") caused other regressions since it changed the behavior
of snd_soc_dapm_set_pin() that is called from several API functions.
Formerly it returned always 0 for success, but now it returns 0 or 1.

This patch addresses it, restoring the old behavior of
snd_soc_dapm_set_pin() while keeping the fix in
snd_soc_dapm_put_pin_switch().

Fixes: 5af82c81b2c4 ("ASoC: DAPM: Fix missing kctl change notifications")
Reported-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211105090925.20575-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-dapm.c | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 08960167d34f5..2924d89bf0daf 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2555,8 +2555,13 @@ static struct snd_soc_dapm_widget *dapm_find_widget(
 	return NULL;
 }
 
-static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
-				const char *pin, int status)
+/*
+ * set the DAPM pin status:
+ * returns 1 when the value has been updated, 0 when unchanged, or a negative
+ * error code; called from kcontrol put callback
+ */
+static int __snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
+				  const char *pin, int status)
 {
 	struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true);
 	int ret = 0;
@@ -2582,6 +2587,18 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
 	return ret;
 }
 
+/*
+ * similar as __snd_soc_dapm_set_pin(), but returns 0 when successful;
+ * called from several API functions below
+ */
+static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
+				const char *pin, int status)
+{
+	int ret = __snd_soc_dapm_set_pin(dapm, pin, status);
+
+	return ret < 0 ? ret : 0;
+}
+
 /**
  * snd_soc_dapm_sync_unlocked - scan and power dapm paths
  * @dapm: DAPM context
@@ -3586,10 +3603,10 @@ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
 	const char *pin = (const char *)kcontrol->private_value;
 	int ret;
 
-	if (ucontrol->value.integer.value[0])
-		ret = snd_soc_dapm_enable_pin(&card->dapm, pin);
-	else
-		ret = snd_soc_dapm_disable_pin(&card->dapm, pin);
+	mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+	ret = __snd_soc_dapm_set_pin(&card->dapm, pin,
+				     !!ucontrol->value.integer.value[0]);
+	mutex_unlock(&card->dapm_mutex);
 
 	snd_soc_dapm_sync(&card->dapm);
 	return ret;
-- 
GitLab


From fe65cecd2758ff45f3382865726c400625ed9623 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 18 Oct 2021 22:40:28 +0200
Subject: [PATCH 1681/4878] usb: max-3421: Use driver data instead of
 maintaining a list of bound devices
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit fc153aba3ef371d0d76eb88230ed4e0dee5b38f2 upstream.

Instead of maintaining a single-linked list of devices that must be
searched linearly in .remove() just use spi_set_drvdata() to remember the
link between the spi device and the driver struct. Then the global list
and the next member can be dropped.

This simplifies the driver, reduces the memory footprint and the time to
search the list. Also it makes obvious that there is always a corresponding
driver struct for a given device in .remove(), so the error path for
!max3421_hcd can be dropped, too.

As a side effect this fixes a data inconsistency when .probe() races with
itself for a second max3421 device in manipulating max3421_hcd_list. A
similar race is fixed in .remove(), too.

Fixes: 2d53139f3162 ("Add support for using a MAX3421E chip as a host driver.")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211018204028.2914597-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/max3421-hcd.c | 25 +++++--------------------
 1 file changed, 5 insertions(+), 20 deletions(-)

diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index c86d413226eb9..b875da01c5309 100644
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -125,8 +125,6 @@ struct max3421_hcd {
 
 	struct task_struct *spi_thread;
 
-	struct max3421_hcd *next;
-
 	enum max3421_rh_state rh_state;
 	/* lower 16 bits contain port status, upper 16 bits the change mask: */
 	u32 port_status;
@@ -174,8 +172,6 @@ struct max3421_ep {
 	u8 retransmit;			/* packet needs retransmission */
 };
 
-static struct max3421_hcd *max3421_hcd_list;
-
 #define MAX3421_FIFO_SIZE	64
 
 #define MAX3421_SPI_DIR_RD	0	/* read register from MAX3421 */
@@ -1882,9 +1878,8 @@ max3421_probe(struct spi_device *spi)
 	}
 	set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 	max3421_hcd = hcd_to_max3421(hcd);
-	max3421_hcd->next = max3421_hcd_list;
-	max3421_hcd_list = max3421_hcd;
 	INIT_LIST_HEAD(&max3421_hcd->ep_list);
+	spi_set_drvdata(spi, max3421_hcd);
 
 	max3421_hcd->tx = kmalloc(sizeof(*max3421_hcd->tx), GFP_KERNEL);
 	if (!max3421_hcd->tx)
@@ -1934,28 +1929,18 @@ error:
 static int
 max3421_remove(struct spi_device *spi)
 {
-	struct max3421_hcd *max3421_hcd = NULL, **prev;
-	struct usb_hcd *hcd = NULL;
+	struct max3421_hcd *max3421_hcd;
+	struct usb_hcd *hcd;
 	unsigned long flags;
 
-	for (prev = &max3421_hcd_list; *prev; prev = &(*prev)->next) {
-		max3421_hcd = *prev;
-		hcd = max3421_to_hcd(max3421_hcd);
-		if (hcd->self.controller == &spi->dev)
-			break;
-	}
-	if (!max3421_hcd) {
-		dev_err(&spi->dev, "no MAX3421 HCD found for SPI device %p\n",
-			spi);
-		return -ENODEV;
-	}
+	max3421_hcd = spi_get_drvdata(spi);
+	hcd = max3421_to_hcd(max3421_hcd);
 
 	usb_remove_hcd(hcd);
 
 	spin_lock_irqsave(&max3421_hcd->lock, flags);
 
 	kthread_stop(max3421_hcd->spi_thread);
-	*prev = max3421_hcd->next;
 
 	spin_unlock_irqrestore(&max3421_hcd->lock, flags);
 
-- 
GitLab


From cade5d7a28037d8f36dab275163575613dd42af3 Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Thu, 23 Sep 2021 21:12:52 +0300
Subject: [PATCH 1682/4878] ice: Delete always true check of PF pointer

commit 2ff04286a9569675948f39cec2c6ad47c3584633 upstream.

PF pointer is always valid when PCI core calls its .shutdown() and
.remove() callbacks. There is no need to check it again.

Fixes: 837f08fdecbe ("ice: Add basic driver framework for Intel(R) E800 Series")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 66d92a0cfef35..5b67d24b2b5ed 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -4361,9 +4361,6 @@ static void ice_remove(struct pci_dev *pdev)
 	struct ice_pf *pf = pci_get_drvdata(pdev);
 	int i;
 
-	if (!pf)
-		return;
-
 	for (i = 0; i < ICE_MAX_RESET_WAIT; i++) {
 		if (!ice_is_reset_in_progress(pf->state))
 			break;
-- 
GitLab


From 9febc9d8d2b4f367c364ccf3b4a4a2335291cff2 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Thu, 14 Oct 2021 13:11:00 -0400
Subject: [PATCH 1683/4878] fs: export an inode_update_time helper

commit e60feb445fce9e51c1558a6aa7faf9dd5ded533b upstream.

If you already have an inode and need to update the time on the inode
there is no way to do this properly.  Export this helper to allow file
systems to update time on the inode so the appropriate handler is
called, either ->update_time or generic_update_time.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/inode.c         | 7 ++++---
 include/linux/fs.h | 2 ++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index 5eea9912a0b9d..638d5d5bf42df 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1772,12 +1772,13 @@ EXPORT_SYMBOL(generic_update_time);
  * This does the actual work of updating an inodes time or version.  Must have
  * had called mnt_want_write() before calling this.
  */
-static int update_time(struct inode *inode, struct timespec64 *time, int flags)
+int inode_update_time(struct inode *inode, struct timespec64 *time, int flags)
 {
 	if (inode->i_op->update_time)
 		return inode->i_op->update_time(inode, time, flags);
 	return generic_update_time(inode, time, flags);
 }
+EXPORT_SYMBOL(inode_update_time);
 
 /**
  *	touch_atime	-	update the access time
@@ -1847,7 +1848,7 @@ void touch_atime(const struct path *path)
 	 * of the fs read only, e.g. subvolumes in Btrfs.
 	 */
 	now = current_time(inode);
-	update_time(inode, &now, S_ATIME);
+	inode_update_time(inode, &now, S_ATIME);
 	__mnt_drop_write(mnt);
 skip_update:
 	sb_end_write(inode->i_sb);
@@ -1991,7 +1992,7 @@ int file_update_time(struct file *file)
 	if (__mnt_want_write_file(file))
 		return 0;
 
-	ret = update_time(inode, &now, sync_it);
+	ret = inode_update_time(inode, &now, sync_it);
 	__mnt_drop_write_file(file);
 
 	return ret;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 43bb6a51e42d9..42d246a942283 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2214,6 +2214,8 @@ enum file_time_flags {
 
 extern bool atime_needs_update(const struct path *, struct inode *);
 extern void touch_atime(const struct path *);
+int inode_update_time(struct inode *inode, struct timespec64 *time, int flags);
+
 static inline void file_accessed(struct file *file)
 {
 	if (!(file->f_flags & O_NOATIME))
-- 
GitLab


From 2ec78af152e95acfc8a27f3251b543fe545599c3 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Thu, 14 Oct 2021 13:11:01 -0400
Subject: [PATCH 1684/4878] btrfs: update device path inode time instead of
 bd_inode

commit 54fde91f52f515e0b1514f0f0fa146e87a672227 upstream.

Christoph pointed out that I'm updating bdev->bd_inode for the device
time when we remove block devices from a btrfs file system, however this
isn't actually exposed to anything.  The inode we want to update is the
one that's associated with the path to the device, usually on devtmpfs,
so that blkid notices the difference.

We still don't want to do the blkdev_open, so use kern_path() to get the
path to the given device and do the update time on that inode.

Fixes: 8f96a5bfa150 ("btrfs: update the bdev time directly when closing")
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/volumes.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d9e582e40b5b7..e462de9917237 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -14,6 +14,7 @@
 #include <linux/semaphore.h>
 #include <linux/uuid.h>
 #include <linux/list_sort.h>
+#include <linux/namei.h>
 #include "misc.h"
 #include "ctree.h"
 #include "extent_map.h"
@@ -1871,18 +1872,22 @@ out:
 /*
  * Function to update ctime/mtime for a given device path.
  * Mainly used for ctime/mtime based probe like libblkid.
+ *
+ * We don't care about errors here, this is just to be kind to userspace.
  */
-static void update_dev_time(struct block_device *bdev)
+static void update_dev_time(const char *device_path)
 {
-	struct inode *inode = bdev->bd_inode;
+	struct path path;
 	struct timespec64 now;
+	int ret;
 
-	/* Shouldn't happen but just in case. */
-	if (!inode)
+	ret = kern_path(device_path, LOOKUP_FOLLOW, &path);
+	if (ret)
 		return;
 
-	now = current_time(inode);
-	generic_update_time(inode, &now, S_MTIME | S_CTIME);
+	now = current_time(d_inode(path.dentry));
+	inode_update_time(d_inode(path.dentry), &now, S_MTIME | S_CTIME);
+	path_put(&path);
 }
 
 static int btrfs_rm_dev_item(struct btrfs_device *device)
@@ -2057,7 +2062,7 @@ void btrfs_scratch_superblocks(struct btrfs_fs_info *fs_info,
 	btrfs_kobject_uevent(bdev, KOBJ_CHANGE);
 
 	/* Update ctime/mtime for device path for libblkid */
-	update_dev_time(bdev);
+	update_dev_time(device_path);
 }
 
 int btrfs_rm_device(struct btrfs_fs_info *fs_info, const char *device_path,
@@ -2700,7 +2705,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	btrfs_forget_devices(device_path);
 
 	/* Update ctime/mtime for blkid or udev */
-	update_dev_time(bdev);
+	update_dev_time(device_path);
 
 	return ret;
 
-- 
GitLab


From b3ef5051a758d8954dc0254e63aff0dd0b71b8de Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 10 Sep 2021 00:19:21 -0700
Subject: [PATCH 1685/4878] x86/Kconfig: Fix an unused variable error in
 dell-smm-hwmon
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit ef775a0e36c6a81c5b07cb228c02f967133fe768 upstream.

When CONFIG_PROC_FS is not set, there is a build warning (turned
into an error):

  ../drivers/hwmon/dell-smm-hwmon.c: In function 'i8k_init_procfs':
  ../drivers/hwmon/dell-smm-hwmon.c:624:24: error: unused variable 'data' [-Werror=unused-variable]
    struct dell_smm_data *data = dev_get_drvdata(dev);

Make I8K depend on PROC_FS and HWMON (instead of selecting HWMON -- it
is strongly preferred to not select entire subsystems).

Build tested in all possible combinations of SENSORS_DELL_SMM, I8K, and
PROC_FS.

Fixes: 039ae58503f3 ("hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lkml.kernel.org/r/20210910071921.16777-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 2b5957b27a3d6..a853ed7240eef 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1266,7 +1266,8 @@ config TOSHIBA
 
 config I8K
 	tristate "Dell i8k legacy laptop support"
-	select HWMON
+	depends on HWMON
+	depends on PROC_FS
 	select SENSORS_DELL_SMM
 	help
 	  This option enables legacy /proc/i8k userspace interface in hwmon
-- 
GitLab


From f751fb54f2bc71cab118855358f0f660ea934b4d Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Fri, 24 Sep 2021 14:24:16 -0500
Subject: [PATCH 1686/4878] ALSA: hda: hdac_ext_stream: fix potential locking
 issues

commit 868ddfcef31ff93ea8961b2e81ea7fe12f6f144b upstream.

The code for hdac_ext_stream seems inherited from hdac_stream, and
similar locking issues are present: the use of the bus->reg_lock
spinlock is inconsistent, with only writes to specific fields being
protected.

Apply similar fix as in hdac_stream by protecting all accesses to
'link_locked' and 'decoupled' fields, with a new helper
snd_hdac_ext_stream_decouple_locked() added to simplify code
changes.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210924192417.169243-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/sound/hdaudio_ext.h     |  2 ++
 sound/hda/ext/hdac_ext_stream.c | 46 ++++++++++++++++++++-------------
 2 files changed, 30 insertions(+), 18 deletions(-)

diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h
index 7abf74c1c4740..75048ea178f62 100644
--- a/include/sound/hdaudio_ext.h
+++ b/include/sound/hdaudio_ext.h
@@ -88,6 +88,8 @@ struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
 					   struct snd_pcm_substream *substream,
 					   int type);
 void snd_hdac_ext_stream_release(struct hdac_ext_stream *azx_dev, int type);
+void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
+				  struct hdac_ext_stream *azx_dev, bool decouple);
 void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
 				struct hdac_ext_stream *azx_dev, bool decouple);
 void snd_hdac_ext_stop_streams(struct hdac_bus *bus);
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c
index c4d54a838773c..1e6e4cf428cda 100644
--- a/sound/hda/ext/hdac_ext_stream.c
+++ b/sound/hda/ext/hdac_ext_stream.c
@@ -106,20 +106,14 @@ void snd_hdac_stream_free_all(struct hdac_bus *bus)
 }
 EXPORT_SYMBOL_GPL(snd_hdac_stream_free_all);
 
-/**
- * snd_hdac_ext_stream_decouple - decouple the hdac stream
- * @bus: HD-audio core bus
- * @stream: HD-audio ext core stream object to initialize
- * @decouple: flag to decouple
- */
-void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
-				struct hdac_ext_stream *stream, bool decouple)
+void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
+					 struct hdac_ext_stream *stream,
+					 bool decouple)
 {
 	struct hdac_stream *hstream = &stream->hstream;
 	u32 val;
 	int mask = AZX_PPCTL_PROCEN(hstream->index);
 
-	spin_lock_irq(&bus->reg_lock);
 	val = readw(bus->ppcap + AZX_REG_PP_PPCTL) & mask;
 
 	if (decouple && !val)
@@ -128,6 +122,20 @@ void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
 		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, 0);
 
 	stream->decoupled = decouple;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple_locked);
+
+/**
+ * snd_hdac_ext_stream_decouple - decouple the hdac stream
+ * @bus: HD-audio core bus
+ * @stream: HD-audio ext core stream object to initialize
+ * @decouple: flag to decouple
+ */
+void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
+				  struct hdac_ext_stream *stream, bool decouple)
+{
+	spin_lock_irq(&bus->reg_lock);
+	snd_hdac_ext_stream_decouple_locked(bus, stream, decouple);
 	spin_unlock_irq(&bus->reg_lock);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_stream_decouple);
@@ -252,6 +260,7 @@ hdac_ext_link_stream_assign(struct hdac_bus *bus,
 		return NULL;
 	}
 
+	spin_lock_irq(&bus->reg_lock);
 	list_for_each_entry(stream, &bus->stream_list, list) {
 		struct hdac_ext_stream *hstream = container_of(stream,
 						struct hdac_ext_stream,
@@ -266,17 +275,16 @@ hdac_ext_link_stream_assign(struct hdac_bus *bus,
 		}
 
 		if (!hstream->link_locked) {
-			snd_hdac_ext_stream_decouple(bus, hstream, true);
+			snd_hdac_ext_stream_decouple_locked(bus, hstream, true);
 			res = hstream;
 			break;
 		}
 	}
 	if (res) {
-		spin_lock_irq(&bus->reg_lock);
 		res->link_locked = 1;
 		res->link_substream = substream;
-		spin_unlock_irq(&bus->reg_lock);
 	}
+	spin_unlock_irq(&bus->reg_lock);
 	return res;
 }
 
@@ -292,6 +300,7 @@ hdac_ext_host_stream_assign(struct hdac_bus *bus,
 		return NULL;
 	}
 
+	spin_lock_irq(&bus->reg_lock);
 	list_for_each_entry(stream, &bus->stream_list, list) {
 		struct hdac_ext_stream *hstream = container_of(stream,
 						struct hdac_ext_stream,
@@ -301,18 +310,17 @@ hdac_ext_host_stream_assign(struct hdac_bus *bus,
 
 		if (!stream->opened) {
 			if (!hstream->decoupled)
-				snd_hdac_ext_stream_decouple(bus, hstream, true);
+				snd_hdac_ext_stream_decouple_locked(bus, hstream, true);
 			res = hstream;
 			break;
 		}
 	}
 	if (res) {
-		spin_lock_irq(&bus->reg_lock);
 		res->hstream.opened = 1;
 		res->hstream.running = 0;
 		res->hstream.substream = substream;
-		spin_unlock_irq(&bus->reg_lock);
 	}
+	spin_unlock_irq(&bus->reg_lock);
 
 	return res;
 }
@@ -378,15 +386,17 @@ void snd_hdac_ext_stream_release(struct hdac_ext_stream *stream, int type)
 		break;
 
 	case HDAC_EXT_STREAM_TYPE_HOST:
+		spin_lock_irq(&bus->reg_lock);
 		if (stream->decoupled && !stream->link_locked)
-			snd_hdac_ext_stream_decouple(bus, stream, false);
+			snd_hdac_ext_stream_decouple_locked(bus, stream, false);
+		spin_unlock_irq(&bus->reg_lock);
 		snd_hdac_stream_release(&stream->hstream);
 		break;
 
 	case HDAC_EXT_STREAM_TYPE_LINK:
-		if (stream->decoupled && !stream->hstream.opened)
-			snd_hdac_ext_stream_decouple(bus, stream, false);
 		spin_lock_irq(&bus->reg_lock);
+		if (stream->decoupled && !stream->hstream.opened)
+			snd_hdac_ext_stream_decouple_locked(bus, stream, false);
 		stream->link_locked = 0;
 		stream->link_substream = NULL;
 		spin_unlock_irq(&bus->reg_lock);
-- 
GitLab


From 6718f79c40fd9f2788b0d12deb64562fcbece984 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Fri, 24 Sep 2021 14:24:14 -0500
Subject: [PATCH 1687/4878] ALSA: hda: hdac_stream: fix potential locking issue
 in snd_hdac_stream_assign()

commit 1465d06a6d8580e73ae65f8590392df58c5ed2fd upstream.

The fields 'opened', 'running', 'assigned_key' are all protected by a
spinlock, but the spinlock is not taken when looking for a
stream. This can result in a possible race between assign() and
release().

Fix by taking the spinlock before walking through the bus stream list.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210924192417.169243-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Scott Bruce <smbruce@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/hda/hdac_stream.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index abe7a1b16fe1e..ce77a53201639 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -296,6 +296,7 @@ struct hdac_stream *snd_hdac_stream_assign(struct hdac_bus *bus,
 	int key = (substream->pcm->device << 16) | (substream->number << 2) |
 		(substream->stream + 1);
 
+	spin_lock_irq(&bus->reg_lock);
 	list_for_each_entry(azx_dev, &bus->stream_list, list) {
 		if (azx_dev->direction != substream->stream)
 			continue;
@@ -309,13 +310,12 @@ struct hdac_stream *snd_hdac_stream_assign(struct hdac_bus *bus,
 			res = azx_dev;
 	}
 	if (res) {
-		spin_lock_irq(&bus->reg_lock);
 		res->opened = 1;
 		res->running = 0;
 		res->assigned_key = key;
 		res->substream = substream;
-		spin_unlock_irq(&bus->reg_lock);
 	}
+	spin_unlock_irq(&bus->reg_lock);
 	return res;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_stream_assign);
-- 
GitLab


From d35250ec5a23771187c85a46e6812d5943b5c13e Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Wed, 24 Nov 2021 19:18:11 -0500
Subject: [PATCH 1688/4878] Revert "perf: Rework perf_event_exit_event()"

This reverts commit 94902ee2996a7f71471138093495df452dab87b6 which is
upstream commit ef54c1a476aef7eef26fe13ea10dc090952c00f8.

Reverting for now due to issues that need to get fixed upstream.

Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/perf_event.h |   1 -
 kernel/events/core.c       | 142 ++++++++++++++++---------------------
 2 files changed, 63 insertions(+), 80 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c095e713cf08f..ce14fb2772b5b 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -607,7 +607,6 @@ struct swevent_hlist {
 #define PERF_ATTACH_TASK_DATA	0x08
 #define PERF_ATTACH_ITRACE	0x10
 #define PERF_ATTACH_SCHED_CB	0x20
-#define PERF_ATTACH_CHILD	0x40
 
 struct perf_cgroup;
 struct perf_buffer;
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 908417736f4e9..639b99a318db1 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2209,26 +2209,6 @@ out:
 	perf_event__header_size(leader);
 }
 
-static void sync_child_event(struct perf_event *child_event);
-
-static void perf_child_detach(struct perf_event *event)
-{
-	struct perf_event *parent_event = event->parent;
-
-	if (!(event->attach_state & PERF_ATTACH_CHILD))
-		return;
-
-	event->attach_state &= ~PERF_ATTACH_CHILD;
-
-	if (WARN_ON_ONCE(!parent_event))
-		return;
-
-	lockdep_assert_held(&parent_event->child_mutex);
-
-	sync_child_event(event);
-	list_del_init(&event->child_list);
-}
-
 static bool is_orphaned_event(struct perf_event *event)
 {
 	return event->state == PERF_EVENT_STATE_DEAD;
@@ -2336,7 +2316,6 @@ group_sched_out(struct perf_event *group_event,
 }
 
 #define DETACH_GROUP	0x01UL
-#define DETACH_CHILD	0x02UL
 
 /*
  * Cross CPU call to remove a performance event
@@ -2360,8 +2339,6 @@ __perf_remove_from_context(struct perf_event *event,
 	event_sched_out(event, cpuctx, ctx);
 	if (flags & DETACH_GROUP)
 		perf_group_detach(event);
-	if (flags & DETACH_CHILD)
-		perf_child_detach(event);
 	list_del_event(event, ctx);
 
 	if (!ctx->nr_events && ctx->is_active) {
@@ -2390,21 +2367,25 @@ static void perf_remove_from_context(struct perf_event *event, unsigned long fla
 
 	lockdep_assert_held(&ctx->mutex);
 
+	event_function_call(event, __perf_remove_from_context, (void *)flags);
+
 	/*
-	 * Because of perf_event_exit_task(), perf_remove_from_context() ought
-	 * to work in the face of TASK_TOMBSTONE, unlike every other
-	 * event_function_call() user.
+	 * The above event_function_call() can NO-OP when it hits
+	 * TASK_TOMBSTONE. In that case we must already have been detached
+	 * from the context (by perf_event_exit_event()) but the grouping
+	 * might still be in-tact.
 	 */
-	raw_spin_lock_irq(&ctx->lock);
-	if (!ctx->is_active) {
-		__perf_remove_from_context(event, __get_cpu_context(ctx),
-					   ctx, (void *)flags);
+	WARN_ON_ONCE(event->attach_state & PERF_ATTACH_CONTEXT);
+	if ((flags & DETACH_GROUP) &&
+	    (event->attach_state & PERF_ATTACH_GROUP)) {
+		/*
+		 * Since in that case we cannot possibly be scheduled, simply
+		 * detach now.
+		 */
+		raw_spin_lock_irq(&ctx->lock);
+		perf_group_detach(event);
 		raw_spin_unlock_irq(&ctx->lock);
-		return;
 	}
-	raw_spin_unlock_irq(&ctx->lock);
-
-	event_function_call(event, __perf_remove_from_context, (void *)flags);
 }
 
 /*
@@ -12296,17 +12277,14 @@ void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu)
 }
 EXPORT_SYMBOL_GPL(perf_pmu_migrate_context);
 
-static void sync_child_event(struct perf_event *child_event)
+static void sync_child_event(struct perf_event *child_event,
+			       struct task_struct *child)
 {
 	struct perf_event *parent_event = child_event->parent;
 	u64 child_val;
 
-	if (child_event->attr.inherit_stat) {
-		struct task_struct *task = child_event->ctx->task;
-
-		if (task && task != TASK_TOMBSTONE)
-			perf_event_read_event(child_event, task);
-	}
+	if (child_event->attr.inherit_stat)
+		perf_event_read_event(child_event, child);
 
 	child_val = perf_event_count(child_event);
 
@@ -12321,53 +12299,60 @@ static void sync_child_event(struct perf_event *child_event)
 }
 
 static void
-perf_event_exit_event(struct perf_event *event, struct perf_event_context *ctx)
+perf_event_exit_event(struct perf_event *child_event,
+		      struct perf_event_context *child_ctx,
+		      struct task_struct *child)
 {
-	struct perf_event *parent_event = event->parent;
-	unsigned long detach_flags = 0;
-
-	if (parent_event) {
-		/*
-		 * Do not destroy the 'original' grouping; because of the
-		 * context switch optimization the original events could've
-		 * ended up in a random child task.
-		 *
-		 * If we were to destroy the original group, all group related
-		 * operations would cease to function properly after this
-		 * random child dies.
-		 *
-		 * Do destroy all inherited groups, we don't care about those
-		 * and being thorough is better.
-		 */
-		detach_flags = DETACH_GROUP | DETACH_CHILD;
-		mutex_lock(&parent_event->child_mutex);
-	}
+	struct perf_event *parent_event = child_event->parent;
 
-	perf_remove_from_context(event, detach_flags);
+	/*
+	 * Do not destroy the 'original' grouping; because of the context
+	 * switch optimization the original events could've ended up in a
+	 * random child task.
+	 *
+	 * If we were to destroy the original group, all group related
+	 * operations would cease to function properly after this random
+	 * child dies.
+	 *
+	 * Do destroy all inherited groups, we don't care about those
+	 * and being thorough is better.
+	 */
+	raw_spin_lock_irq(&child_ctx->lock);
+	WARN_ON_ONCE(child_ctx->is_active);
 
-	raw_spin_lock_irq(&ctx->lock);
-	if (event->state > PERF_EVENT_STATE_EXIT)
-		perf_event_set_state(event, PERF_EVENT_STATE_EXIT);
-	raw_spin_unlock_irq(&ctx->lock);
+	if (parent_event)
+		perf_group_detach(child_event);
+	list_del_event(child_event, child_ctx);
+	perf_event_set_state(child_event, PERF_EVENT_STATE_EXIT); /* is_event_hup() */
+	raw_spin_unlock_irq(&child_ctx->lock);
 
 	/*
-	 * Child events can be freed.
+	 * Parent events are governed by their filedesc, retain them.
 	 */
-	if (parent_event) {
-		mutex_unlock(&parent_event->child_mutex);
-		/*
-		 * Kick perf_poll() for is_event_hup();
-		 */
-		perf_event_wakeup(parent_event);
-		free_event(event);
-		put_event(parent_event);
+	if (!parent_event) {
+		perf_event_wakeup(child_event);
 		return;
 	}
+	/*
+	 * Child events can be cleaned up.
+	 */
+
+	sync_child_event(child_event, child);
 
 	/*
-	 * Parent events are governed by their filedesc, retain them.
+	 * Remove this event from the parent's list
+	 */
+	WARN_ON_ONCE(parent_event->ctx->parent_ctx);
+	mutex_lock(&parent_event->child_mutex);
+	list_del_init(&child_event->child_list);
+	mutex_unlock(&parent_event->child_mutex);
+
+	/*
+	 * Kick perf_poll() for is_event_hup().
 	 */
-	perf_event_wakeup(event);
+	perf_event_wakeup(parent_event);
+	free_event(child_event);
+	put_event(parent_event);
 }
 
 static void perf_event_exit_task_context(struct task_struct *child, int ctxn)
@@ -12424,7 +12409,7 @@ static void perf_event_exit_task_context(struct task_struct *child, int ctxn)
 	perf_event_task(child, child_ctx, 0);
 
 	list_for_each_entry_safe(child_event, next, &child_ctx->event_list, event_entry)
-		perf_event_exit_event(child_event, child_ctx);
+		perf_event_exit_event(child_event, child_ctx, child);
 
 	mutex_unlock(&child_ctx->mutex);
 
@@ -12684,7 +12669,6 @@ inherit_event(struct perf_event *parent_event,
 	 */
 	raw_spin_lock_irqsave(&child_ctx->lock, flags);
 	add_event_to_ctx(child_event, child_ctx);
-	child_event->attach_state |= PERF_ATTACH_CHILD;
 	raw_spin_unlock_irqrestore(&child_ctx->lock, flags);
 
 	/*
-- 
GitLab


From d5259a9ba6993a843278203323902bc0c049097e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 26 Nov 2021 10:39:22 +0100
Subject: [PATCH 1689/4878] Linux 5.10.82

Link: https://lore.kernel.org/r/20211124115702.361983534@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Link: https://lore.kernel.org/r/20211125092029.973858485@linuxfoundation.org
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 1baeadb574f1c..84b15766ad66f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 81
+SUBLEVEL = 82
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 94cba915dc6db1aef2161f9bcbf5a89b81be31c9 Mon Sep 17 00:00:00 2001
From: Victor Hsu <hsuvictor@google.com>
Date: Mon, 29 Nov 2021 17:29:51 +0800
Subject: [PATCH 1690/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 208129741
Signed-off-by: Victor Hsu <hsuvictor@google.com>
Change-Id: Ie5d1ba8c734ac7f6a89654362ea6373f6af23c8b
---
 android/abi_gki_aarch64_generic | 129 ++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 79524e839df15..3763bf5c49b16 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2,8 +2,11 @@
   add_cpu
   add_timer
   add_timer_on
+  add_uevent_var
   add_wait_queue
   adjust_managed_page_count
+  aes_encrypt
+  aes_expandkey
   alarm_cancel
   alarm_init
   alarm_start_relative
@@ -19,6 +22,7 @@
   __alloc_percpu
   __alloc_percpu_gfp
   __alloc_skb
+  alloc_skb_with_frags
   alloc_workqueue
   amba_driver_register
   amba_driver_unregister
@@ -121,6 +125,7 @@
   cdev_init
   __cfg80211_alloc_event_skb
   __cfg80211_alloc_reply_skb
+  cfg80211_calculate_bitrate
   cfg80211_chandef_create
   cfg80211_ch_switch_notify
   cfg80211_connect_done
@@ -129,24 +134,30 @@
   cfg80211_external_auth_request
   cfg80211_find_elem_match
   cfg80211_get_bss
+  cfg80211_gtk_rekey_notify
   cfg80211_ibss_joined
   cfg80211_inform_bss_frame_data
   cfg80211_mgmt_tx_status
   cfg80211_michael_mic_failure
   cfg80211_new_sta
+  cfg80211_pmksa_candidate_notify
   cfg80211_port_authorized
   cfg80211_put_bss
   cfg80211_ready_on_channel
   cfg80211_remain_on_channel_expired
   cfg80211_roamed
   cfg80211_rx_mgmt_khz
+  cfg80211_rx_unprot_mlme_mgmt
   cfg80211_scan_done
   cfg80211_sched_scan_results
   cfg80211_sched_scan_stopped
   cfg80211_sched_scan_stopped_rtnl
   __cfg80211_send_event_skb
+  cfg80211_stop_iface
+  cfg80211_tdls_oper_request
   cfg80211_unlink_bss
   cfg80211_unregister_wdev
+  cfg80211_update_owe_info_event
   cfg80211_vendor_cmd_reply
   __cfi_slowpath
   __check_object_size
@@ -204,6 +215,7 @@
   consume_skb
   contig_page_data
   _copy_from_iter
+  _copy_from_iter_full
   _copy_to_iter
   __cpu_active_mask
   cpu_all_bits
@@ -226,6 +238,7 @@
   cpufreq_get_policy
   cpufreq_policy_transition_delay_us
   cpufreq_quick_get
+  cpufreq_quick_get_max
   cpufreq_register_driver
   cpufreq_register_governor
   cpufreq_register_notifier
@@ -240,6 +253,7 @@
   cpuhp_tasks_frozen
   cpu_hwcap_keys
   cpu_hwcaps
+  cpuidle_governor_latency_req
   cpuidle_pause_and_lock
   cpuidle_resume_and_unlock
   cpu_latency_qos_add_request
@@ -253,11 +267,13 @@
   __cpu_online_mask
   cpu_pm_register_notifier
   __cpu_possible_mask
+  __cpu_present_mask
   cpupri_find_fitness
   cpu_scale
   cpus_read_lock
   cpus_read_unlock
   cpu_subsys
+  cpu_topology
   crc32_le
   crc8
   crc8_populate_msb
@@ -268,6 +284,7 @@
   crypto_alloc_aead
   crypto_alloc_base
   crypto_alloc_shash
+  crypto_alloc_skcipher
   crypto_alloc_sync_skcipher
   crypto_comp_compress
   crypto_comp_decompress
@@ -276,8 +293,11 @@
   crypto_register_alg
   crypto_register_scomp
   crypto_shash_digest
+  crypto_shash_final
   crypto_shash_finup
   crypto_shash_setkey
+  crypto_shash_update
+  crypto_skcipher_decrypt
   crypto_skcipher_encrypt
   crypto_skcipher_setkey
   crypto_unregister_alg
@@ -286,9 +306,11 @@
   csum_partial
   csum_tcpudp_nofold
   _ctype
+  datagram_poll
   debugfs_attr_read
   debugfs_attr_write
   debugfs_create_atomic_t
+  debugfs_create_blob
   debugfs_create_bool
   debugfs_create_dir
   debugfs_create_file
@@ -309,6 +331,7 @@
   del_timer_sync
   desc_to_gpio
   destroy_workqueue
+  dev_alloc_name
   dev_close
   _dev_crit
   dev_driver_string
@@ -328,11 +351,13 @@
   devfreq_update_interval
   dev_fwnode
   dev_get_by_name
+  device_add
   device_add_disk
   device_add_groups
   device_create
   device_create_file
   device_create_with_groups
+  device_del
   device_destroy
   device_find_child
   device_for_each_child
@@ -449,7 +474,11 @@
   dev_pm_opp_put
   dev_pm_opp_put_regulators
   dev_pm_opp_set_regulators
+  dev_pm_qos_add_notifier
+  dev_pm_qos_add_request
   dev_pm_qos_read_value
+  dev_pm_qos_remove_notifier
+  dev_pm_qos_remove_request
   dev_pm_qos_update_request
   dev_printk
   dev_printk_emit
@@ -487,6 +516,8 @@
   dma_buf_unmap_attachment
   dma_buf_vmap
   dma_buf_vunmap
+  dma_direct_alloc
+  dma_direct_free
   dmaengine_unmap_put
   dma_fence_add_callback
   dma_fence_context_alloc
@@ -498,6 +529,7 @@
   dma_fence_signal
   dma_fence_signal_locked
   dma_free_attrs
+  dma_get_sgtable_attrs
   dma_get_slave_caps
   dma_get_slave_channel
   dma_heap_add
@@ -525,6 +557,7 @@
   dma_unmap_page_attrs
   dma_unmap_resource
   dma_unmap_sg_attrs
+  do_exit
   do_SAK
   do_wait_intr_irq
   down
@@ -737,6 +770,7 @@
   emergency_restart
   enable_irq
   enable_percpu_irq
+  ether_setup
   eth_type_trans
   eventfd_ctx_fdget
   eventfd_ctx_put
@@ -760,11 +794,13 @@
   filp_open_block
   find_extend_vma
   find_get_pid
+  find_last_bit
   find_next_bit
   find_next_zero_bit
   find_task_by_vpid
   find_vma
   finish_wait
+  firmware_request_nowarn
   flush_dcache_page
   flush_work
   flush_workqueue
@@ -909,19 +945,23 @@
   ida_alloc_range
   ida_free
   idr_alloc
+  idr_alloc_cyclic
   idr_destroy
   idr_find
   idr_for_each
+  idr_get_next
   idr_preload
   idr_remove
   ieee80211_channel_to_freq_khz
   ieee80211_freq_khz_to_channel
   ieee80211_get_channel_khz
+  ieee80211_hdrlen
   iio_device_unregister
   import_iovec
   in6_pton
   in_aton
   inc_zone_page_state
+  in_egroup_p
   init_dummy_netdev
   init_net
   init_pseudo
@@ -991,6 +1031,7 @@
   iov_iter_bvec
   ip_send_check
   iput
+  __ipv6_addr_type
   __irq_alloc_descs
   irq_create_mapping_affinity
   irq_create_of_mapping
@@ -1017,9 +1058,14 @@
   jiffies_to_usecs
   kasan_flag_enabled
   kasprintf
+  kernel_bind
+  kernel_connect
   kernel_cpustat
+  kernel_getsockname
   kernel_kobj
+  kernel_recvmsg
   kernel_restart
+  kernel_sendmsg
   kern_mount
   kern_unmount
   __kfifo_alloc
@@ -1044,6 +1090,7 @@
   kmem_cache_alloc
   kmem_cache_alloc_trace
   kmem_cache_create
+  kmem_cache_create_usercopy
   kmem_cache_destroy
   kmem_cache_free
   kmemdup
@@ -1057,6 +1104,7 @@
   kobject_uevent_env
   kobj_sysfs_ops
   krealloc
+  ksize
   kstat
   kstrdup
   kstrndup
@@ -1107,6 +1155,7 @@
   list_sort
   __local_bh_enable_ip
   __lock_page
+  lock_sock_nested
   log_abnormal_wakeup_reason
   __log_post_read_mmio
   __log_read_mmio
@@ -1131,9 +1180,16 @@
   memdup_user_nul
   memmove
   memparse
+  mempool_alloc
+  mempool_alloc_slab
+  mempool_create
+  mempool_destroy
+  mempool_free
+  mempool_free_slab
   memremap
   memset
   memset64
+  __memset_io
   memstart_addr
   memunmap
   mfd_add_devices
@@ -1181,12 +1237,17 @@
   __netdev_alloc_skb
   netdev_state_change
   netdev_update_features
+  netif_carrier_off
+  netif_carrier_on
   netif_napi_add
   __netif_napi_del
   netif_receive_skb
+  netif_receive_skb_list
   netif_rx
   netif_rx_ni
+  netif_tx_stop_all_queues
   netif_tx_wake_queue
+  netlink_broadcast
   __netlink_kernel_create
   netlink_kernel_release
   netlink_unicast
@@ -1237,6 +1298,7 @@
   of_find_node_by_phandle
   of_find_node_by_type
   of_find_node_opts_by_path
+  of_find_node_with_property
   of_find_property
   of_fwnode_ops
   of_genpd_add_provider_simple
@@ -1299,6 +1361,7 @@
   panic_notifier_list
   param_array_ops
   param_get_int
+  param_get_string
   param_ops_bool
   param_ops_byte
   param_ops_charp
@@ -1307,12 +1370,15 @@
   param_ops_string
   param_ops_uint
   param_ops_ulong
+  param_set_copystring
   param_set_int
   pause_cpus
   pci_alloc_irq_vectors_affinity
   pci_assign_resource
   pci_clear_master
   pci_disable_device
+  pci_disable_msi
+  pcie_capability_read_word
   pci_enable_device
   pci_enable_wake
   pci_find_bus
@@ -1320,12 +1386,16 @@
   pci_find_ext_capability
   pci_free_irq_vectors
   pci_get_device
+  pci_iomap
+  pci_irq_vector
   pci_load_and_free_saved_state
   pci_load_saved_state
   pci_read_config_dword
   pci_read_config_word
   __pci_register_driver
+  pci_release_region
   pci_release_regions
+  pci_request_region
   pci_rescan_bus
   pci_restore_msi_state
   pci_restore_state
@@ -1411,6 +1481,7 @@
   __pm_runtime_use_autosuspend
   __pm_stay_awake
   pm_stay_awake
+  pm_system_wakeup
   pm_wakeup_dev_event
   pm_wakeup_ws_event
   power_supply_changed
@@ -1442,6 +1513,8 @@
   proc_mkdir
   proc_mkdir_data
   proc_remove
+  proto_register
+  proto_unregister
   pskb_expand_head
   __pskb_pull_tail
   put_device
@@ -1459,14 +1532,20 @@
   pwm_set_chip_data
   queue_delayed_work_on
   queue_work_on
+  radix_tree_insert
+  radix_tree_iter_delete
+  radix_tree_lookup
+  radix_tree_next_chunk
   ___ratelimit
   raw_notifier_call_chain
   raw_notifier_chain_register
   _raw_read_lock
   _raw_read_lock_bh
+  _raw_read_lock_irq
   _raw_read_lock_irqsave
   _raw_read_unlock
   _raw_read_unlock_bh
+  _raw_read_unlock_irq
   _raw_read_unlock_irqrestore
   _raw_spin_lock
   _raw_spin_lock_bh
@@ -1478,9 +1557,11 @@
   _raw_spin_unlock_irq
   _raw_spin_unlock_irqrestore
   _raw_write_lock
+  _raw_write_lock_bh
   _raw_write_lock_irq
   _raw_write_lock_irqsave
   _raw_write_unlock
+  _raw_write_unlock_bh
   _raw_write_unlock_irq
   _raw_write_unlock_irqrestore
   rb_erase
@@ -1493,6 +1574,7 @@
   __rcu_read_unlock
   rdev_get_drvdata
   rdev_get_id
+  refcount_dec_not_one
   refcount_warn_saturate
   __refrigerator
   regcache_cache_only
@@ -1510,6 +1592,7 @@
   register_netdev
   register_netdevice
   register_netdevice_notifier
+  register_netevent_notifier
   register_oom_notifier
   register_pernet_subsys
   register_pm_notifier
@@ -1552,13 +1635,16 @@
   regulator_notifier_call_chain
   regulator_put
   regulator_register
+  regulator_set_load
   regulator_set_voltage
   regulator_set_voltage_sel_regmap
   regulator_unregister
   regulatory_hint
+  regulatory_set_wiphy_regd
   regulatory_set_wiphy_regd_sync_rtnl
   release_firmware
   __release_region
+  release_sock
   remap_pfn_range
   remap_vmalloc_range
   remove_cpu
@@ -1592,6 +1678,7 @@
   rt_mutex_unlock
   rtnl_is_locked
   rtnl_lock
+  rtnl_trylock
   rtnl_unlock
   runqueues
   sched_clock
@@ -1647,6 +1734,7 @@
   set_page_dirty
   set_page_dirty_lock
   __SetPageMovable
+  set_user_nice
   sg_alloc_table
   sg_alloc_table_from_pages
   sg_free_table
@@ -1671,12 +1759,19 @@
   single_open
   single_open_size
   single_release
+  sk_alloc
+  skb_add_rx_frag
   skb_checksum
   skb_clone
+  skb_coalesce_rx_frag
   skb_copy
+  skb_copy_bits
+  skb_copy_datagram_iter
   skb_copy_expand
   skb_dequeue
   skb_dequeue_tail
+  skb_free_datagram
+  __skb_pad
   skb_pull
   skb_push
   skb_put
@@ -1684,7 +1779,12 @@
   skb_queue_purge
   skb_queue_tail
   skb_realloc_headroom
+  skb_recv_datagram
+  skb_set_owner_w
+  skb_store_bits
   skb_trim
+  sk_free
+  skip_spaces
   smp_call_function
   smp_call_function_single
   smp_call_on_cpu
@@ -1766,6 +1866,21 @@
   snd_soc_unregister_component
   snprintf
   soc_device_register
+  sock_alloc_send_skb
+  sock_create_kern
+  sock_gettstamp
+  sock_init_data
+  sock_no_accept
+  sock_no_listen
+  sock_no_mmap
+  sock_no_sendpage
+  sock_no_shutdown
+  sock_no_socketpair
+  sock_queue_rcv_skb
+  sock_register
+  sock_release
+  sock_setsockopt
+  sock_unregister
   sock_wfree
   softnet_data
   sort
@@ -1798,6 +1913,7 @@
   strcasecmp
   strcat
   strchr
+  strchrnul
   strcmp
   strcpy
   strcspn
@@ -1808,6 +1924,7 @@
   strlen
   strncasecmp
   strncat
+  strnchr
   strncmp
   strncpy
   strncpy_from_user
@@ -1857,6 +1974,7 @@
   system_unbound_wq
   system_wq
   sys_tz
+  __tasklet_hi_schedule
   tasklet_init
   tasklet_kill
   __tasklet_schedule
@@ -2122,6 +2240,7 @@
   unregister_netdev
   unregister_netdevice_notifier
   unregister_netdevice_queue
+  unregister_netevent_notifier
   unregister_oom_notifier
   unregister_pernet_subsys
   unregister_pm_notifier
@@ -2247,6 +2366,7 @@
   virtqueue_kick_prepare
   virtqueue_notify
   vmalloc
+  vmalloc_to_page
   vmalloc_user
   vmap
   vmf_insert_pfn_prot
@@ -2257,13 +2377,16 @@
   vring_del_virtqueue
   vring_interrupt
   vring_new_virtqueue
+  vscnprintf
   vsnprintf
   vsscanf
   vunmap
   vzalloc
   vzalloc_node
   wait_for_completion
+  wait_for_completion_interruptible
   wait_for_completion_interruptible_timeout
+  wait_for_completion_killable
   wait_for_completion_timeout
   wait_woken
   __wake_up
@@ -2286,8 +2409,14 @@
   wiphy_new_nm
   wiphy_register
   wiphy_unregister
+  wireless_send_event
   woken_wake_function
   work_busy
+  xa_erase
+  xa_find
+  xa_find_after
+  xa_load
+  xa_store
   __xfrm_state_destroy
   xfrm_state_lookup_byspi
   xfrm_stateonly_find
-- 
GitLab


From cf551f380a3c47894accfffc2c8b3d4547a60f9a Mon Sep 17 00:00:00 2001
From: Liujie Xie <xieliujie@oppo.com>
Date: Thu, 11 Nov 2021 17:05:49 +0800
Subject: [PATCH 1691/4878] ANDROID: vendor_hooks: Add hooks for frequency
 optimization

These hooks will do the following works:
a) Record the number of times when target_freq being clamped
b) Record the number of times when target_freq is greater than policy->cur
c) Make corresponding optimization strategies in different hooks
d) change the value of target_freq for some scenarios

Bug: 205906618
Bug: 206896672

Change-Id: I8eba66fd0c6d36393ca39045cf228b659834e0ae
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Signed-off-by: vincent.wang <vincent.wang@unisoc.com>
(cherry picked from commit 7e2fbdaeabb31251f42e38bed0ae0b660408f8e6)
---
 drivers/android/vendor_hooks.c |  3 +++
 drivers/cpufreq/cpufreq.c      |  6 ++++++
 include/trace/hooks/cpufreq.h  | 15 +++++++++++++++
 3 files changed, 24 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index f315991e8df2e..12f38f2ee35c1 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -137,6 +137,9 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_suspend_epoch_val);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_resume_epoch_val);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_max_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_freq_table_limits);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_resolve_freq);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_fast_switch);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_target);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_newidle_balance);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_nohz_balancer_kick);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_rebalance_domains);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6498da359cbf5..5920c9207413e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -543,7 +543,10 @@ EXPORT_SYMBOL_GPL(cpufreq_disable_fast_switch);
 unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
 					 unsigned int target_freq)
 {
+	unsigned int old_target_freq = target_freq;
+
 	target_freq = clamp_val(target_freq, policy->min, policy->max);
+	trace_android_vh_cpufreq_resolve_freq(policy, &target_freq, old_target_freq);
 	policy->cached_target_freq = target_freq;
 
 	if (cpufreq_driver->target_index) {
@@ -2093,9 +2096,11 @@ unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,
 					unsigned int target_freq)
 {
 	unsigned int freq;
+	unsigned int old_target_freq = target_freq;
 	int cpu;
 
 	target_freq = clamp_val(target_freq, policy->min, policy->max);
+	trace_android_vh_cpufreq_fast_switch(policy, &target_freq, old_target_freq);
 	freq = cpufreq_driver->fast_switch(policy, target_freq);
 
 	if (!freq)
@@ -2211,6 +2216,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 
 	/* Make sure that target_freq is within supported range */
 	target_freq = clamp_val(target_freq, policy->min, policy->max);
+	trace_android_vh_cpufreq_target(policy, &target_freq, old_target_freq);
 
 	pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n",
 		 policy->cpu, target_freq, relation, old_target_freq);
diff --git a/include/trace/hooks/cpufreq.h b/include/trace/hooks/cpufreq.h
index 7208da2e7e3e2..5142cd5a07de4 100644
--- a/include/trace/hooks/cpufreq.h
+++ b/include/trace/hooks/cpufreq.h
@@ -27,6 +27,21 @@ DECLARE_HOOK(android_vh_cpufreq_acct_update_power,
 DECLARE_RESTRICTED_HOOK(android_rvh_cpufreq_transition,
 	TP_PROTO(struct cpufreq_policy *policy),
 	TP_ARGS(policy), 1);
+
+DECLARE_HOOK(android_vh_cpufreq_resolve_freq,
+	TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq,
+		unsigned int old_target_freq),
+	TP_ARGS(policy, target_freq, old_target_freq));
+
+DECLARE_HOOK(android_vh_cpufreq_fast_switch,
+	TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq,
+		unsigned int old_target_freq),
+	TP_ARGS(policy, target_freq, old_target_freq));
+
+DECLARE_HOOK(android_vh_cpufreq_target,
+	TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq,
+		unsigned int old_target_freq),
+	TP_ARGS(policy, target_freq, old_target_freq));
 /* macro versions of hooks are no longer required */
 
 #endif /* _TRACE_HOOK_CPUFREQ_H */
-- 
GitLab


From 4e28e93af58e4d9c84af0e5f4ce67adb10e0abbc Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Mon, 29 Nov 2021 21:29:54 +0800
Subject: [PATCH 1692/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 201259891
Bug: 201260585
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I7ea749d0b7a9f0978e36a4273c8f85d1f9d4be9c
---
 android/abi_gki_aarch64_generic | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 3763bf5c49b16..b3a0048adeb0c 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2028,6 +2028,7 @@
   __traceiter_android_rvh_do_sea
   __traceiter_android_rvh_do_sp_pc_abort
   __traceiter_android_rvh_do_undefinstr
+  __traceiter_android_rvh_enqueue_task
   __traceiter_android_rvh_find_energy_efficient_cpu
   __traceiter_android_rvh_irqs_disable
   __traceiter_android_rvh_irqs_enable
@@ -2035,6 +2036,7 @@
   __traceiter_android_rvh_preempt_disable
   __traceiter_android_rvh_preempt_enable
   __traceiter_android_rvh_sched_fork
+  __traceiter_android_rvh_select_task_rq_fair
   __traceiter_android_rvh_select_task_rq_rt
   __traceiter_android_rvh_set_iowait
   __traceiter_android_rvh_typec_tcpci_chk_contaminant
@@ -2111,6 +2113,7 @@
   __tracepoint_android_rvh_do_sea
   __tracepoint_android_rvh_do_sp_pc_abort
   __tracepoint_android_rvh_do_undefinstr
+  __tracepoint_android_rvh_enqueue_task
   __tracepoint_android_rvh_find_energy_efficient_cpu
   __tracepoint_android_rvh_irqs_disable
   __tracepoint_android_rvh_irqs_enable
@@ -2118,6 +2121,7 @@
   __tracepoint_android_rvh_preempt_disable
   __tracepoint_android_rvh_preempt_enable
   __tracepoint_android_rvh_sched_fork
+  __tracepoint_android_rvh_select_task_rq_fair
   __tracepoint_android_rvh_select_task_rq_rt
   __tracepoint_android_rvh_set_iowait
   __tracepoint_android_rvh_typec_tcpci_chk_contaminant
-- 
GitLab


From 0804903063d0df373b974c328568a59cc356f520 Mon Sep 17 00:00:00 2001
From: Yabin Cui <yabinc@google.com>
Date: Mon, 22 Nov 2021 14:23:45 -0800
Subject: [PATCH 1693/4878] ANDROID: gki_defconfig: enable
 CONFIG_PID_IN_CONTEXTIDR

It is needed to add thread ids to ETM data.

Bug: 195134672
Change-Id: I3b15c5a09cd27e025b2e38def47494e195215399
Signed-off-by: Yabin Cui <yabinc@google.com>
---
 arch/arm64/configs/gki_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 20f304b00d916..dffaa14de551f 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -694,4 +694,5 @@ CONFIG_BUG_ON_DATA_CORRUPTION=y
 CONFIG_TRACE_MMIO_ACCESS=y
 CONFIG_TRACEFS_DISABLE_AUTOMOUNT=y
 CONFIG_HIST_TRIGGERS=y
+CONFIG_PID_IN_CONTEXTIDR=y
 # CONFIG_RUNTIME_TESTING_MENU is not set
-- 
GitLab


From b9017a5dba4f82cf8e2a6436d68c5be483645076 Mon Sep 17 00:00:00 2001
From: Yabin Cui <yabinc@google.com>
Date: Mon, 22 Nov 2021 14:05:03 -0800
Subject: [PATCH 1694/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list for coresight driver modules in
drivers/hwtracing/coresight.

Bug: 195134672
Change-Id: I7679c37d43aacc36cfbcb074bccaad744fcd6080
Signed-off-by: Yabin Cui <yabinc@google.com>
---
 android/abi_gki_aarch64_generic | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index b3a0048adeb0c..048260ab2664f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -24,6 +24,7 @@
   __alloc_skb
   alloc_skb_with_frags
   alloc_workqueue
+  amba_bustype
   amba_driver_register
   amba_driver_unregister
   android_debug_symbol
@@ -266,6 +267,7 @@
   cpu_number
   __cpu_online_mask
   cpu_pm_register_notifier
+  cpu_pm_unregister_notifier
   __cpu_possible_mask
   __cpu_present_mask
   cpupri_find_fitness
@@ -368,6 +370,7 @@
   device_init_wakeup
   device_link_add
   device_link_del
+  device_match_fwnode
   device_property_present
   device_property_read_string
   device_property_read_string_array
@@ -824,6 +827,7 @@
   full_name_hash
   fwnode_get_name
   fwnode_gpiod_get_index
+  fwnode_handle_get
   fwnode_handle_put
   fwnode_property_present
   fwnode_property_read_string
@@ -901,6 +905,7 @@
   handle_nested_irq
   handle_simple_irq
   handle_sysrq
+  hashlen_string
   have_governor_per_policy
   hex2bin
   hex_dump_to_buffer
@@ -964,6 +969,7 @@
   in_egroup_p
   init_dummy_netdev
   init_net
+  init_pid_ns
   init_pseudo
   __init_rwsem
   __init_swait_queue_head
@@ -1308,8 +1314,14 @@
   of_get_named_gpio_flags
   of_get_next_available_child
   of_get_next_child
+  of_get_next_parent
   of_get_property
   of_get_regulator_init_data
+  of_graph_get_next_endpoint
+  of_graph_get_port_parent
+  of_graph_get_remote_endpoint
+  of_graph_is_present
+  of_graph_parse_endpoint
   of_iomap
   of_irq_find_parent
   of_irq_get
@@ -1409,6 +1421,10 @@
   pci_write_config_word
   PDE_DATA
   __per_cpu_offset
+  perf_aux_output_begin
+  perf_aux_output_end
+  perf_aux_output_flag
+  perf_event_addr_filters_sync
   perf_event_create_kernel_counter
   perf_event_disable
   perf_event_enable
@@ -1417,6 +1433,7 @@
   perf_event_read_value
   perf_event_release_kernel
   perf_event_update_userpage
+  perf_get_aux
   perf_pmu_migrate_context
   perf_pmu_register
   perf_pmu_unregister
@@ -1951,6 +1968,7 @@
   sysctl_sched_features
   sysctl_sched_latency
   sysfs_add_file_to_group
+  sysfs_add_link_to_group
   sysfs_create_file_ns
   sysfs_create_files
   sysfs_create_group
@@ -1959,10 +1977,12 @@
   sysfs_emit
   sysfs_emit_at
   sysfs_notify
+  sysfs_remove_file_from_group
   sysfs_remove_file_ns
   sysfs_remove_group
   sysfs_remove_groups
   sysfs_remove_link
+  sysfs_remove_link_from_group
   sysfs_streq
   sysfs_update_group
   sysrq_mask
@@ -1974,6 +1994,7 @@
   system_unbound_wq
   system_wq
   sys_tz
+  task_active_pid_ns
   __tasklet_hi_schedule
   tasklet_init
   tasklet_kill
-- 
GitLab


From b51d71e4aa5f6caecd42f2428869674119b11f74 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 29 Nov 2021 10:21:30 -0800
Subject: [PATCH 1695/4878] ANDROID: fips140: support "evaluation testing"
 builds via build.sh

Allow the following command to be run to make a build of fips140.ko
that has CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING enabled:

    BUILD_CONFIG=common/build.config.gki.aarch64.fips140_eval_testing ./build/build.sh

Bug: 188620248
Change-Id: I0e0be487974c6ad40f3135fc5fec6aa107aab78c
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 arch/arm64/configs/fips140_gki_eval_testing.fragment | 1 +
 build.config.gki.aarch64.fips140_eval_testing        | 3 +++
 2 files changed, 4 insertions(+)
 create mode 100644 arch/arm64/configs/fips140_gki_eval_testing.fragment
 create mode 100644 build.config.gki.aarch64.fips140_eval_testing

diff --git a/arch/arm64/configs/fips140_gki_eval_testing.fragment b/arch/arm64/configs/fips140_gki_eval_testing.fragment
new file mode 100644
index 0000000000000..d8b16022a6dd3
--- /dev/null
+++ b/arch/arm64/configs/fips140_gki_eval_testing.fragment
@@ -0,0 +1 @@
+CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING=y
diff --git a/build.config.gki.aarch64.fips140_eval_testing b/build.config.gki.aarch64.fips140_eval_testing
new file mode 100644
index 0000000000000..66df5fe1bb4f4
--- /dev/null
+++ b/build.config.gki.aarch64.fips140_eval_testing
@@ -0,0 +1,3 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.aarch64.fips140
+
+PRE_DEFCONFIG_CMDS+=" cat ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/fips140_gki_eval_testing.fragment >> ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG};"
-- 
GitLab


From d047dc9a81b98cab7ef69ed7cd18235c52e6525e Mon Sep 17 00:00:00 2001
From: Cheney Ni <cheneyni@google.com>
Date: Tue, 30 Nov 2021 19:10:37 +0800
Subject: [PATCH 1696/4878] ANDROID: add send_sig_info to the ABI symbol list

Update the generic symbol list to include send_sig_info symbol.

Bug: 208387726
Bug: 203079726
Signed-off-by: Cheney Ni <cheneyni@google.com>
Change-Id: I7d35ffe0565c13ca48b2bf55a6104585ad840022
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 048260ab2664f..74fb5d378c2c5 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1732,6 +1732,7 @@
   scsi_register_interface
   scsi_unblock_requests
   sdev_prefix_printk
+  send_sig_info
   seq_hex_dump
   seq_lseek
   seq_open
-- 
GitLab


From 862b31f3129a7c49cbd39f384edcd46dba25484c Mon Sep 17 00:00:00 2001
From: Cheney Ni <cheneyni@google.com>
Date: Tue, 30 Nov 2021 19:18:27 +0800
Subject: [PATCH 1697/4878] ANDROID: add regulator_get_voltage to the ABI
 symbol list

Update the generic symbol list to include regulator_get_voltage symbol.

Bug: 208387726
Bug: 203172742
Signed-off-by: Cheney Ni <cheneyni@google.com>
Change-Id: Ifd8156506ed95aa4dff165e3fe982b630c077fa4
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 74fb5d378c2c5..d02a4d4d0cde5 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1644,6 +1644,7 @@
   regulator_enable_regmap
   regulator_get
   regulator_get_optional
+  regulator_get_voltage
   regulator_get_voltage_sel_regmap
   regulator_is_enabled
   regulator_is_enabled_regmap
-- 
GitLab


From 61b66296b2a246b6c638cdd0025d98a42083b904 Mon Sep 17 00:00:00 2001
From: Xuewen Yan <xuewen.yan@unisoc.com>
Date: Thu, 25 Nov 2021 14:44:07 +0800
Subject: [PATCH 1698/4878] ANDROID: Add vendor hook for the uclamp_util

android_rvh_uclamp_task_util:
    To perform vendor-specific uclamp task util.

android_rvh_uclamp_rq_util_with:
    To perform vendor-specific uclamp rq util.

Bug: 208355632
Test: build pass

Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Change-Id: I265db6ca0bb4ac48fafe1b53276e6e0f636349ff
---
 drivers/android/vendor_hooks.c |  2 ++
 include/trace/hooks/sched.h    | 10 ++++++++++
 kernel/sched/fair.c            | 13 ++++++++++---
 kernel/sched/sched.h           |  6 ++++++
 4 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 12f38f2ee35c1..162b8b3f5f876 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -230,6 +230,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_clock_scaling);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_wake_up_sync);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_wake_flags);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_eff_get);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_task_util);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_rq_util_with);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cpufreq_transition);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cgroup_set_task);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_cgroup_force_kthread_migration);
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index 12ea85521d207..ea001c708eef9 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -279,6 +279,16 @@ DECLARE_RESTRICTED_HOOK(android_rvh_uclamp_eff_get,
 		 struct uclamp_se *uclamp_max, struct uclamp_se *uclamp_eff, int *ret),
 	TP_ARGS(p, clamp_id, uclamp_max, uclamp_eff, ret), 1);
 
+DECLARE_RESTRICTED_HOOK(android_rvh_uclamp_task_util,
+	TP_PROTO(unsigned long task_util, unsigned long min_util,
+		 unsigned long max_util, unsigned long *ret),
+	TP_ARGS(task_util, min_util, max_util, ret), 1);
+
+DECLARE_RESTRICTED_HOOK(android_rvh_uclamp_rq_util_with,
+	TP_PROTO(unsigned long util, unsigned long min_util,
+		 unsigned long max_util, unsigned long *ret),
+	TP_ARGS(util, min_util, max_util, ret), 1);
+
 DECLARE_HOOK(android_vh_build_sched_domains,
 	TP_PROTO(bool has_asym),
 	TP_ARGS(has_asym));
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ed13040b62157..bd931b9386e91 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3927,9 +3927,16 @@ static inline unsigned long task_util_est(struct task_struct *p)
 #ifdef CONFIG_UCLAMP_TASK
 static inline unsigned long uclamp_task_util(struct task_struct *p)
 {
-	return clamp(task_util_est(p),
-		     uclamp_eff_value(p, UCLAMP_MIN),
-		     uclamp_eff_value(p, UCLAMP_MAX));
+	unsigned long min_util = uclamp_eff_value(p, UCLAMP_MIN);
+	unsigned long max_util = uclamp_eff_value(p, UCLAMP_MAX);
+	unsigned long task_util = task_util_est(p);
+	unsigned long ret = 0;
+
+	trace_android_rvh_uclamp_task_util(task_util, min_util, max_util, &ret);
+	if (ret)
+		return ret;
+
+	return clamp(task_util, min_util, max_util);
 }
 #else
 static inline unsigned long uclamp_task_util(struct task_struct *p)
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 518da844fe2a3..317be806dd044 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -79,6 +79,7 @@
 #include "cpudeadline.h"
 
 #include <trace/events/sched.h>
+#include <trace/hooks/sched.h>
 
 #ifdef CONFIG_SCHED_DEBUG
 # define SCHED_WARN_ON(x)	WARN_ONCE(x, #x)
@@ -2465,6 +2466,7 @@ unsigned long uclamp_rq_util_with(struct rq *rq, unsigned long util,
 {
 	unsigned long min_util = 0;
 	unsigned long max_util = 0;
+	unsigned long ret = 0;
 
 	if (!static_branch_likely(&sched_uclamp_used))
 		return util;
@@ -2492,6 +2494,10 @@ out:
 	if (unlikely(min_util >= max_util))
 		return min_util;
 
+	trace_android_rvh_uclamp_rq_util_with(util, min_util, max_util, &ret);
+	if (ret)
+		return ret;
+
 	return clamp(util, min_util, max_util);
 }
 
-- 
GitLab


From f1149f377415f1e7f8c5b740ed29236fcd668396 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Mon, 29 Nov 2021 15:56:13 -0800
Subject: [PATCH 1699/4878] BACKPORT: UPSTREAM: Modify the
 __ufshcd_transfer_req_compl() documentation

Bring the __ufshcd_transfer_req_compl() documentation in sync with the
upstream documentation. See also upstream commit 73dc3c4ac703 ("scsi: ufs:
Retry aborted SCSI commands instead of completing these successfully").

Bug: 204438323
(cherry picked from commit 73dc3c4ac703c6fea4b40e8ed1ddd80564da3dea)
Change-Id: Ib412e0b88ba1e967f0fd486efec87d973f170f65
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d593190f0fa86..77f9f49a2e94b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5272,7 +5272,7 @@ static irqreturn_t ufshcd_uic_cmd_compl(struct ufs_hba *hba, u32 intr_status)
 /**
  * __ufshcd_transfer_req_compl - handle SCSI and query command completion
  * @hba: per adapter instance
- * @completed_reqs: requests to complete
+ * @completed_reqs: bitmask that indicates which requests to complete
  */
 static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 					unsigned long completed_reqs)
-- 
GitLab


From d8f63d5cda0adcf507fb58de41b27298925b292a Mon Sep 17 00:00:00 2001
From: ChanWoo Lee <cw9316.lee@samsung.com>
Date: Wed, 1 Sep 2021 11:56:17 +0900
Subject: [PATCH 1700/4878] UPSTREAM: scsi: ufs: ufshpb: Remove unused
 parameters

The following parameters are not used in the function. Remove them.

*func(): ufshpb_set_hpb_read_to_upiu
 -> struct ufshpb_lu *hpb
 -> u32 lpn

Link: https://lore.kernel.org/r/20210901025617.31174-1-cw9316.lee@samsung.com
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 65ef27f7798b57138351d28fd2f61f2afa164400)
Change-Id: Ie2085255f492770c65efd86674f499071bdb750f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshpb.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index 6f10acac31e43..bbf91de662b3f 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -323,9 +323,8 @@ ufshpb_get_pos_from_lpn(struct ufshpb_lu *hpb, unsigned long lpn, int *rgn_idx,
 }
 
 static void
-ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshpb_lu *hpb,
-			    struct ufshcd_lrb *lrbp, u32 lpn, __be64 ppn,
-			    u8 transfer_len, int read_id)
+ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
+			    __be64 ppn, u8 transfer_len, int read_id)
 {
 	unsigned char *cdb = lrbp->cmd->cmnd;
 	__be64 ppn_tmp = ppn;
@@ -694,8 +693,7 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 		}
 	}
 
-	ufshpb_set_hpb_read_to_upiu(hba, hpb, lrbp, lpn, ppn, transfer_len,
-				    read_id);
+	ufshpb_set_hpb_read_to_upiu(hba, lrbp, ppn, transfer_len, read_id);
 
 	hpb->stats.hit_cnt++;
 	return 0;
-- 
GitLab


From 34ab59ad8628c9c69135da8d02643d261a06ef95 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 18 Oct 2021 18:10:04 +0300
Subject: [PATCH 1701/4878] UPSTREAM: scsi: ufs: ufs-pci: Force a full restore
 after suspend-to-disk

Implement the ->restore() PM operation and set the link to off, which will
force a full reset and restore.  This ensures that Host Performance Booster
is reset after suspend-to-disk.

The Host Performance Booster feature caches logical-to-physical mapping
information in the host memory.  After suspend-to-disk, such information is
not valid, so a full reset and restore is needed.

A full reset and restore is done if the SPM level is 5 or 6, but not for
other SPM levels, so this change fixes those cases.

A full reset and restore also restores base address registers, so that code
is removed.

Link: https://lore.kernel.org/r/20211018151004.284200-2-adrian.hunter@intel.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 4e5483b8440d01f6851a1388801088a6e0da0b56)
Bug: 204438323
Change-Id: I2882c7958344819a738b924a0f712c92fad9a73a
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-pci.c | 33 ++++++++++++++++++---------------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index 149c1aa091035..51424557810da 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -370,20 +370,6 @@ static void ufs_intel_common_exit(struct ufs_hba *hba)
 
 static int ufs_intel_resume(struct ufs_hba *hba, enum ufs_pm_op op)
 {
-	/*
-	 * To support S4 (suspend-to-disk) with spm_lvl other than 5, the base
-	 * address registers must be restored because the restore kernel can
-	 * have used different addresses.
-	 */
-	ufshcd_writel(hba, lower_32_bits(hba->utrdl_dma_addr),
-		      REG_UTP_TRANSFER_REQ_LIST_BASE_L);
-	ufshcd_writel(hba, upper_32_bits(hba->utrdl_dma_addr),
-		      REG_UTP_TRANSFER_REQ_LIST_BASE_H);
-	ufshcd_writel(hba, lower_32_bits(hba->utmrdl_dma_addr),
-		      REG_UTP_TASK_REQ_LIST_BASE_L);
-	ufshcd_writel(hba, upper_32_bits(hba->utmrdl_dma_addr),
-		      REG_UTP_TASK_REQ_LIST_BASE_H);
-
 	if (ufshcd_is_link_hibern8(hba)) {
 		int ret = ufshcd_uic_hibern8_exit(hba);
 
@@ -463,6 +449,18 @@ static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
 	.device_reset		= ufs_intel_device_reset,
 };
 
+#ifdef CONFIG_PM_SLEEP
+static int ufshcd_pci_restore(struct device *dev)
+{
+	struct ufs_hba *hba = dev_get_drvdata(dev);
+
+	/* Force a full reset and restore */
+	ufshcd_set_link_off(hba);
+
+	return ufshcd_system_resume(dev);
+}
+#endif
+
 /**
  * ufshcd_pci_shutdown - main function to put the controller in reset state
  * @pdev: pointer to PCI device handle
@@ -546,9 +544,14 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 }
 
 static const struct dev_pm_ops ufshcd_pci_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
 	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
 #ifdef CONFIG_PM_SLEEP
+	.suspend	= ufshcd_system_suspend,
+	.resume		= ufshcd_system_resume,
+	.freeze		= ufshcd_system_suspend,
+	.thaw		= ufshcd_system_resume,
+	.poweroff	= ufshcd_system_suspend,
+	.restore	= ufshcd_pci_restore,
 	.prepare	= ufshcd_suspend_prepare,
 	.complete	= ufshcd_resume_complete,
 #endif
-- 
GitLab


From 06a5840b16fd9cd7f076892de86fe995322b2e21 Mon Sep 17 00:00:00 2001
From: Avri Altman <avri.altman@wdc.com>
Date: Sat, 30 Oct 2021 09:23:01 +0300
Subject: [PATCH 1702/4878] UPSTREAM: scsi: ufs: ufshpb: Remove HPB2.0 flows

The Host Performance Buffer feature allows UFS read commands to carry the
physical media addresses along with the LBAs, thus allowing less internal
L2P-table switches in the device.  HPB1.0 allowed a single LBA, while
HPB2.0 increases this capacity up to 255 blocks.

Carrying more than a single record, the read operation is no longer purely
of type "read" but a "hybrid" command: Writing the physical address to the
device in one operation and reading back the required payload in another.

The JEDEC HPB spec defines two commands for this operation:
HPB-WRITE-BUFFER (0x2) to write the physical addresses to device, and
HPB-READ to read the payload.

With the current HPB design the UFS driver has no alternative but to divide
the READ request into 2 separate commands: HPB-WRITE-BUFFER and HPB-READ.
This causes a great deal of aggravation to the block layer guys who
demanded that we completely revert the entire HPB driver regardless of the
huge amount of corporate effort already invested in it.

As a compromise, remove only the pieces that implement the 2.0
specification. This is done as a matter of urgency for the final 5.15
release.

Link: https://lore.kernel.org/r/20211030062301.248-1-avri.altman@wdc.com
Tested-by: Avri Altman <avri.altman@wdc.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Co-developed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 09d9e4d041876684d33f21d02bcdaea6586734f1)
Change-Id: I81e4df5f95115491005ecea4cc39d1fa7b63b074
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c |   7 +-
 drivers/scsi/ufs/ufshpb.c | 284 +-------------------------------------
 drivers/scsi/ufs/ufshpb.h |   2 -
 3 files changed, 4 insertions(+), 289 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 77f9f49a2e94b..67d1c471f1817 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2776,12 +2776,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 
 	lrbp->req_abort_skip = false;
 
-	err = ufshpb_prep(hba, lrbp);
-	if (err == -EAGAIN) {
-		lrbp->cmd = NULL;
-		ufshcd_release(hba);
-		goto out;
-	}
+	ufshpb_prep(hba, lrbp);
 
 	ufshcd_comp_scsi_upiu(hba, lrbp);
 
diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index bbf91de662b3f..ac8fb1cf07955 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -84,16 +84,6 @@ static bool ufshpb_is_supported_chunk(struct ufshpb_lu *hpb, int transfer_len)
 	return transfer_len <= hpb->pre_req_max_tr_len;
 }
 
-/*
- * In this driver, WRITE_BUFFER CMD support 36KB (len=9) ~ 1MB (len=256) as
- * default. It is possible to change range of transfer_len through sysfs.
- */
-static inline bool ufshpb_is_required_wb(struct ufshpb_lu *hpb, int len)
-{
-	return len > hpb->pre_req_min_tr_len &&
-	       len <= hpb->pre_req_max_tr_len;
-}
-
 static bool ufshpb_is_general_lun(int lun)
 {
 	return lun < UFS_UPIU_MAX_UNIT_NUM_ID;
@@ -324,7 +314,7 @@ ufshpb_get_pos_from_lpn(struct ufshpb_lu *hpb, unsigned long lpn, int *rgn_idx,
 
 static void
 ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
-			    __be64 ppn, u8 transfer_len, int read_id)
+			    __be64 ppn, u8 transfer_len)
 {
 	unsigned char *cdb = lrbp->cmd->cmnd;
 	__be64 ppn_tmp = ppn;
@@ -336,256 +326,11 @@ ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
 	/* ppn value is stored as big-endian in the host memory */
 	memcpy(&cdb[6], &ppn_tmp, sizeof(__be64));
 	cdb[14] = transfer_len;
-	cdb[15] = read_id;
+	cdb[15] = 0;
 
 	lrbp->cmd->cmd_len = UFS_CDB_SIZE;
 }
 
-static inline void ufshpb_set_write_buf_cmd(unsigned char *cdb,
-					    unsigned long lpn, unsigned int len,
-					    int read_id)
-{
-	cdb[0] = UFSHPB_WRITE_BUFFER;
-	cdb[1] = UFSHPB_WRITE_BUFFER_PREFETCH_ID;
-
-	put_unaligned_be32(lpn, &cdb[2]);
-	cdb[6] = read_id;
-	put_unaligned_be16(len * HPB_ENTRY_SIZE, &cdb[7]);
-
-	cdb[9] = 0x00;	/* Control = 0x00 */
-}
-
-static struct ufshpb_req *ufshpb_get_pre_req(struct ufshpb_lu *hpb)
-{
-	struct ufshpb_req *pre_req;
-
-	if (hpb->num_inflight_pre_req >= hpb->throttle_pre_req) {
-		dev_info(&hpb->sdev_ufs_lu->sdev_dev,
-			 "pre_req throttle. inflight %d throttle %d",
-			 hpb->num_inflight_pre_req, hpb->throttle_pre_req);
-		return NULL;
-	}
-
-	pre_req = list_first_entry_or_null(&hpb->lh_pre_req_free,
-					   struct ufshpb_req, list_req);
-	if (!pre_req) {
-		dev_info(&hpb->sdev_ufs_lu->sdev_dev, "There is no pre_req");
-		return NULL;
-	}
-
-	list_del_init(&pre_req->list_req);
-	hpb->num_inflight_pre_req++;
-
-	return pre_req;
-}
-
-static inline void ufshpb_put_pre_req(struct ufshpb_lu *hpb,
-				      struct ufshpb_req *pre_req)
-{
-	pre_req->req = NULL;
-	bio_reset(pre_req->bio);
-	list_add_tail(&pre_req->list_req, &hpb->lh_pre_req_free);
-	hpb->num_inflight_pre_req--;
-}
-
-static void ufshpb_pre_req_compl_fn(struct request *req, blk_status_t error)
-{
-	struct ufshpb_req *pre_req = (struct ufshpb_req *)req->end_io_data;
-	struct ufshpb_lu *hpb = pre_req->hpb;
-	unsigned long flags;
-
-	if (error) {
-		struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req);
-		struct scsi_sense_hdr sshdr;
-
-		dev_err(&hpb->sdev_ufs_lu->sdev_dev, "block status %d", error);
-		scsi_command_normalize_sense(cmd, &sshdr);
-		dev_err(&hpb->sdev_ufs_lu->sdev_dev,
-			"code %x sense_key %x asc %x ascq %x",
-			sshdr.response_code,
-			sshdr.sense_key, sshdr.asc, sshdr.ascq);
-		dev_err(&hpb->sdev_ufs_lu->sdev_dev,
-			"byte4 %x byte5 %x byte6 %x additional_len %x",
-			sshdr.byte4, sshdr.byte5,
-			sshdr.byte6, sshdr.additional_length);
-	}
-
-	blk_mq_free_request(req);
-	spin_lock_irqsave(&hpb->rgn_state_lock, flags);
-	ufshpb_put_pre_req(pre_req->hpb, pre_req);
-	spin_unlock_irqrestore(&hpb->rgn_state_lock, flags);
-}
-
-static int ufshpb_prep_entry(struct ufshpb_req *pre_req, struct page *page)
-{
-	struct ufshpb_lu *hpb = pre_req->hpb;
-	struct ufshpb_region *rgn;
-	struct ufshpb_subregion *srgn;
-	__be64 *addr;
-	int offset = 0;
-	int copied;
-	unsigned long lpn = pre_req->wb.lpn;
-	int rgn_idx, srgn_idx, srgn_offset;
-	unsigned long flags;
-
-	addr = page_address(page);
-	ufshpb_get_pos_from_lpn(hpb, lpn, &rgn_idx, &srgn_idx, &srgn_offset);
-
-	spin_lock_irqsave(&hpb->rgn_state_lock, flags);
-
-next_offset:
-	rgn = hpb->rgn_tbl + rgn_idx;
-	srgn = rgn->srgn_tbl + srgn_idx;
-
-	if (!ufshpb_is_valid_srgn(rgn, srgn))
-		goto mctx_error;
-
-	if (!srgn->mctx)
-		goto mctx_error;
-
-	copied = ufshpb_fill_ppn_from_page(hpb, srgn->mctx, srgn_offset,
-					   pre_req->wb.len - offset,
-					   &addr[offset]);
-
-	if (copied < 0)
-		goto mctx_error;
-
-	offset += copied;
-	srgn_offset += copied;
-
-	if (srgn_offset == hpb->entries_per_srgn) {
-		srgn_offset = 0;
-
-		if (++srgn_idx == hpb->srgns_per_rgn) {
-			srgn_idx = 0;
-			rgn_idx++;
-		}
-	}
-
-	if (offset < pre_req->wb.len)
-		goto next_offset;
-
-	spin_unlock_irqrestore(&hpb->rgn_state_lock, flags);
-	return 0;
-mctx_error:
-	spin_unlock_irqrestore(&hpb->rgn_state_lock, flags);
-	return -ENOMEM;
-}
-
-static int ufshpb_pre_req_add_bio_page(struct ufshpb_lu *hpb,
-				       struct request_queue *q,
-				       struct ufshpb_req *pre_req)
-{
-	struct page *page = pre_req->wb.m_page;
-	struct bio *bio = pre_req->bio;
-	int entries_bytes, ret;
-
-	if (!page)
-		return -ENOMEM;
-
-	if (ufshpb_prep_entry(pre_req, page))
-		return -ENOMEM;
-
-	entries_bytes = pre_req->wb.len * sizeof(__be64);
-
-	ret = bio_add_pc_page(q, bio, page, entries_bytes, 0);
-	if (ret != entries_bytes) {
-		dev_err(&hpb->sdev_ufs_lu->sdev_dev,
-			"bio_add_pc_page fail: %d", ret);
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-static inline int ufshpb_get_read_id(struct ufshpb_lu *hpb)
-{
-	if (++hpb->cur_read_id >= MAX_HPB_READ_ID)
-		hpb->cur_read_id = 1;
-	return hpb->cur_read_id;
-}
-
-static int ufshpb_execute_pre_req(struct ufshpb_lu *hpb, struct scsi_cmnd *cmd,
-				  struct ufshpb_req *pre_req, int read_id)
-{
-	struct scsi_device *sdev = cmd->device;
-	struct request_queue *q = sdev->request_queue;
-	struct request *req;
-	struct scsi_request *rq;
-	struct bio *bio = pre_req->bio;
-
-	pre_req->hpb = hpb;
-	pre_req->wb.lpn = sectors_to_logical(cmd->device,
-					     blk_rq_pos(scsi_cmd_to_rq(cmd)));
-	pre_req->wb.len = sectors_to_logical(cmd->device,
-					     blk_rq_sectors(scsi_cmd_to_rq(cmd)));
-	if (ufshpb_pre_req_add_bio_page(hpb, q, pre_req))
-		return -ENOMEM;
-
-	req = pre_req->req;
-
-	/* 1. request setup */
-	blk_rq_append_bio(req, &bio);
-	req->rq_disk = NULL;
-	req->end_io_data = (void *)pre_req;
-	req->end_io = ufshpb_pre_req_compl_fn;
-
-	/* 2. scsi_request setup */
-	rq = scsi_req(req);
-	rq->retries = 1;
-
-	ufshpb_set_write_buf_cmd(rq->cmd, pre_req->wb.lpn, pre_req->wb.len,
-				 read_id);
-	rq->cmd_len = scsi_command_size(rq->cmd);
-
-	if (blk_insert_cloned_request(q, req) != BLK_STS_OK)
-		return -EAGAIN;
-
-	hpb->stats.pre_req_cnt++;
-
-	return 0;
-}
-
-static int ufshpb_issue_pre_req(struct ufshpb_lu *hpb, struct scsi_cmnd *cmd,
-				int *read_id)
-{
-	struct ufshpb_req *pre_req;
-	struct request *req = NULL;
-	unsigned long flags;
-	int _read_id;
-	int ret = 0;
-
-	req = blk_get_request(cmd->device->request_queue,
-			      REQ_OP_SCSI_OUT | REQ_SYNC, BLK_MQ_REQ_NOWAIT);
-	if (IS_ERR(req))
-		return -EAGAIN;
-
-	spin_lock_irqsave(&hpb->rgn_state_lock, flags);
-	pre_req = ufshpb_get_pre_req(hpb);
-	if (!pre_req) {
-		ret = -EAGAIN;
-		goto unlock_out;
-	}
-	_read_id = ufshpb_get_read_id(hpb);
-	spin_unlock_irqrestore(&hpb->rgn_state_lock, flags);
-
-	pre_req->req = req;
-
-	ret = ufshpb_execute_pre_req(hpb, cmd, pre_req, _read_id);
-	if (ret)
-		goto free_pre_req;
-
-	*read_id = _read_id;
-
-	return ret;
-free_pre_req:
-	spin_lock_irqsave(&hpb->rgn_state_lock, flags);
-	ufshpb_put_pre_req(hpb, pre_req);
-unlock_out:
-	spin_unlock_irqrestore(&hpb->rgn_state_lock, flags);
-	blk_put_request(req);
-	return ret;
-}
-
 /*
  * This function will set up HPB read command using host-side L2P map data.
  */
@@ -599,7 +344,6 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 	__be64 ppn;
 	unsigned long flags;
 	int transfer_len, rgn_idx, srgn_idx, srgn_offset;
-	int read_id = 0;
 	int err = 0;
 
 	hpb = ufshpb_get_hpb_data(cmd->device);
@@ -676,24 +420,7 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 		return err;
 	}
 
-	if (!ufshpb_is_legacy(hba) &&
-	    ufshpb_is_required_wb(hpb, transfer_len)) {
-		err = ufshpb_issue_pre_req(hpb, cmd, &read_id);
-		if (err) {
-			unsigned long timeout;
-
-			timeout = cmd->jiffies_at_alloc + msecs_to_jiffies(
-				  hpb->params.requeue_timeout_ms);
-
-			if (time_before(jiffies, timeout))
-				return -EAGAIN;
-
-			hpb->stats.miss_cnt++;
-			return 0;
-		}
-	}
-
-	ufshpb_set_hpb_read_to_upiu(hba, lrbp, ppn, transfer_len, read_id);
+	ufshpb_set_hpb_read_to_upiu(hba, lrbp, ppn, transfer_len);
 
 	hpb->stats.hit_cnt++;
 	return 0;
@@ -1821,17 +1548,12 @@ static void ufshpb_lu_parameter_init(struct ufs_hba *hba,
 	u32 entries_per_rgn;
 	u64 rgn_mem_size, tmp;
 
-	/* for pre_req */
-	hpb->pre_req_min_tr_len = hpb_dev_info->max_hpb_single_cmd + 1;
-
 	if (ufshpb_is_legacy(hba))
 		hpb->pre_req_max_tr_len = HPB_LEGACY_CHUNK_HIGH;
 	else
 		hpb->pre_req_max_tr_len = HPB_MULTI_CHUNK_HIGH;
 
 
-	hpb->cur_read_id = 0;
-
 	hpb->lu_pinned_start = hpb_lu_info->pinned_start;
 	hpb->lu_pinned_end = hpb_lu_info->num_pinned ?
 		(hpb_lu_info->pinned_start + hpb_lu_info->num_pinned - 1)
diff --git a/drivers/scsi/ufs/ufshpb.h b/drivers/scsi/ufs/ufshpb.h
index c74a6c35a4460..cd263f47751d0 100644
--- a/drivers/scsi/ufs/ufshpb.h
+++ b/drivers/scsi/ufs/ufshpb.h
@@ -239,8 +239,6 @@ struct ufshpb_lu {
 	int throttle_pre_req;
 	int num_inflight_map_req;
 	struct list_head lh_pre_req_free;
-	int cur_read_id;
-	int pre_req_min_tr_len;
 	int pre_req_max_tr_len;
 
 	/* cached L2P map management worker */
-- 
GitLab


From 37d7b9fee0067cb4b39ba8aca36761e0737aec32 Mon Sep 17 00:00:00 2001
From: Peter Wang <peter.wang@mediatek.com>
Date: Wed, 6 Oct 2021 13:47:05 +0800
Subject: [PATCH 1703/4878] UPSTREAM: scsi: ufs: mediatek: Support vops pre
 suspend to disable auto-hibern8

Mediatek UFS needs auto-hibern8 disabled before suspend. Introduce a
solution to do pre-suspend before SSU (sleep).

Link: https://lore.kernel.org/r/20211006054705.21885-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 9561f58442e48c3c71da250aa63bd02ec6bffcb5)
Change-Id: I3258b448ab9fcb54037c47ef22688c837b664c7f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c   |  6 ++-
 drivers/scsi/ufs/ufs-hisi.c     |  6 ++-
 drivers/scsi/ufs/ufs-mediatek.c | 68 ++++++++++++++++++++++++++++++++-
 drivers/scsi/ufs/ufs-mediatek.h | 20 ++++++++++
 drivers/scsi/ufs/ufs-qcom.c     |  6 ++-
 drivers/scsi/ufs/ufshcd.c       |  9 ++++-
 drivers/scsi/ufs/ufshcd.h       |  8 ++--
 7 files changed, 114 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index bb2dd79a1bcd6..30d0c1aba0c7c 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1176,10 +1176,14 @@ static void exynos_ufs_hibern8_notify(struct ufs_hba *hba,
 	}
 }
 
-static int exynos_ufs_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+static int exynos_ufs_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op,
+	enum ufs_notify_change_status status)
 {
 	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
 
+	if (status == PRE_CHANGE)
+		return 0;
+
 	if (!ufshcd_is_link_active(hba))
 		phy_power_off(ufs->phy);
 
diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 6b706de8354bf..8c7e8d3217462 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -396,10 +396,14 @@ out:
 	return ret;
 }
 
-static int ufs_hisi_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+static int ufs_hisi_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op,
+	enum ufs_notify_change_status status)
 {
 	struct ufs_hisi_host *host = ufshcd_get_variant(hba);
 
+	if (status == PRE_CHANGE)
+		return 0;
+
 	if (pm_op == UFS_RUNTIME_PM)
 		return 0;
 
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d2d7e76c5ec85..d1696db70ce8d 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -311,6 +311,46 @@ static void ufs_mtk_dbg_sel(struct ufs_hba *hba)
 	}
 }
 
+static void ufs_mtk_wait_idle_state(struct ufs_hba *hba,
+			    unsigned long retry_ms)
+{
+	u64 timeout, time_checked;
+	u32 val, sm;
+	bool wait_idle;
+
+	timeout = sched_clock() + retry_ms * 1000000UL;
+
+
+	/* wait a specific time after check base */
+	udelay(10);
+	wait_idle = false;
+
+	do {
+		time_checked = sched_clock();
+		ufs_mtk_dbg_sel(hba);
+		val = ufshcd_readl(hba, REG_UFS_PROBE);
+
+		sm = val & 0x1f;
+
+		/*
+		 * if state is in H8 enter and H8 enter confirm
+		 * wait until return to idle state.
+		 */
+		if ((sm >= VS_HIB_ENTER) && (sm <= VS_HIB_EXIT)) {
+			wait_idle = true;
+			udelay(50);
+			continue;
+		} else if (!wait_idle)
+			break;
+
+		if (wait_idle && (sm == VS_HCE_BASE))
+			break;
+	} while (time_checked < timeout);
+
+	if (wait_idle && sm != VS_HCE_BASE)
+		dev_info(hba->dev, "wait idle tmo: 0x%x\n", val);
+}
+
 static int ufs_mtk_wait_link_state(struct ufs_hba *hba, u32 state,
 				   unsigned long max_wait_ms)
 {
@@ -949,11 +989,37 @@ static void ufs_mtk_vreg_set_lpm(struct ufs_hba *hba, bool lpm)
 				   REGULATOR_MODE_NORMAL);
 }
 
-static int ufs_mtk_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+static void ufs_mtk_auto_hibern8_disable(struct ufs_hba *hba)
+{
+	unsigned long flags;
+	int ret;
+
+	/* disable auto-hibern8 */
+	spin_lock_irqsave(hba->host->host_lock, flags);
+	ufshcd_writel(hba, 0, REG_AUTO_HIBERNATE_IDLE_TIMER);
+	spin_unlock_irqrestore(hba->host->host_lock, flags);
+
+	/* wait host return to idle state when auto-hibern8 off */
+	ufs_mtk_wait_idle_state(hba, 5);
+
+	ret = ufs_mtk_wait_link_state(hba, VS_LINK_UP, 100);
+	if (ret)
+		dev_warn(hba->dev, "exit h8 state fail, ret=%d\n", ret);
+}
+
+static int ufs_mtk_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op,
+	enum ufs_notify_change_status status)
 {
 	int err;
 	struct arm_smccc_res res;
 
+	if (status == PRE_CHANGE) {
+		if (!ufshcd_is_auto_hibern8_supported(hba))
+			return 0;
+		ufs_mtk_auto_hibern8_disable(hba);
+		return 0;
+	}
+
 	if (ufshcd_is_link_hibern8(hba)) {
 		err = ufs_mtk_link_set_lpm(hba);
 		if (err)
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index 524c8e2c1e6ff..c96b9b529ee2e 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -54,6 +54,26 @@ enum {
 	VS_LINK_CFG                 = 5,
 };
 
+/*
+ * Vendor specific host controller state
+ */
+enum {
+	VS_HCE_RESET                = 0,
+	VS_HCE_BASE                 = 1,
+	VS_HCE_OOCPR_WAIT           = 2,
+	VS_HCE_DME_RESET            = 3,
+	VS_HCE_MIDDLE               = 4,
+	VS_HCE_DME_ENABLE           = 5,
+	VS_HCE_DEFAULTS             = 6,
+	VS_HIB_IDLEEN               = 7,
+	VS_HIB_ENTER                = 8,
+	VS_HIB_ENTER_CONF           = 9,
+	VS_HIB_MIDDLE               = 10,
+	VS_HIB_WAITTIMER            = 11,
+	VS_HIB_EXIT_CONF            = 12,
+	VS_HIB_EXIT                 = 13,
+};
+
 /*
  * SiP commands
  */
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 92f5bb4965faa..0d2e950d0865e 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -589,11 +589,15 @@ static void ufs_qcom_device_reset_ctrl(struct ufs_hba *hba, bool asserted)
 	gpiod_set_value_cansleep(host->device_reset, asserted);
 }
 
-static int ufs_qcom_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
+static int ufs_qcom_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op,
+	enum ufs_notify_change_status status)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 	struct phy *phy = host->generic_phy;
 
+	if (status == PRE_CHANGE)
+		return 0;
+
 	if (ufs_qcom_is_link_off(hba)) {
 		/*
 		 * Disable the tx/rx lane symbol clocks before PHY is
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 67d1c471f1817..270d2fa0cb80b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8872,6 +8872,10 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 
 	flush_work(&hba->eeh_work);
 
+	ret = ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE);
+	if (ret)
+		goto enable_scaling;
+
 	if (req_dev_pwr_mode != hba->curr_dev_pwr_mode) {
 		if (pm_op != UFS_RUNTIME_PM)
 			/* ensure that bkops is disabled */
@@ -8899,7 +8903,7 @@ vops_suspend:
 	 * vendor specific host controller register space call them before the
 	 * host clocks are ON.
 	 */
-	ret = ufshcd_vops_suspend(hba, pm_op);
+	ret = ufshcd_vops_suspend(hba, pm_op, POST_CHANGE);
 	if (ret)
 		goto set_link_active;
 	goto out;
@@ -9027,7 +9031,8 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 set_old_link_state:
 	ufshcd_link_state_transition(hba, old_link_state, 0);
 vendor_suspend:
-	ufshcd_vops_suspend(hba, pm_op);
+	ufshcd_vops_suspend(hba, pm_op, PRE_CHANGE);
+	ufshcd_vops_suspend(hba, pm_op, POST_CHANGE);
 out:
 	if (ret)
 		ufshcd_update_evt_hist(hba, UFS_EVT_WL_RES_ERR, (u32)ret);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index b34c084536a7d..25cb03487b632 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -347,7 +347,8 @@ struct ufs_hba_variant_ops {
 					enum ufs_notify_change_status);
 	int	(*apply_dev_quirks)(struct ufs_hba *hba);
 	void	(*fixup_dev_quirks)(struct ufs_hba *hba);
-	int     (*suspend)(struct ufs_hba *, enum ufs_pm_op);
+	int     (*suspend)(struct ufs_hba *, enum ufs_pm_op,
+					enum ufs_notify_change_status);
 	int     (*resume)(struct ufs_hba *, enum ufs_pm_op);
 	void	(*dbg_register_dump)(struct ufs_hba *hba);
 	int	(*phy_initialization)(struct ufs_hba *);
@@ -1375,10 +1376,11 @@ static inline void ufshcd_vops_fixup_dev_quirks(struct ufs_hba *hba)
 		hba->vops->fixup_dev_quirks(hba);
 }
 
-static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op)
+static inline int ufshcd_vops_suspend(struct ufs_hba *hba, enum ufs_pm_op op,
+				enum ufs_notify_change_status status)
 {
 	if (hba->vops && hba->vops->suspend)
-		return hba->vops->suspend(hba, op);
+		return hba->vops->suspend(hba, op, status);
 
 	return 0;
 }
-- 
GitLab


From 63dc7ea18264bc7bf00797e29db6ec3f96edc0d2 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 8 Oct 2021 11:40:48 +0300
Subject: [PATCH 1704/4878] UPSTREAM: scsi: ufs: core: Fix synchronization
 between scsi_unjam_host() and ufshcd_queuecommand()

The SCSI error handler calls scsi_unjam_host() which can call the queue
function ufshcd_queuecommand() indirectly. The error handler changes the
state to UFSHCD_STATE_RESET while running, but error interrupts that
happen while the error handler is running could change the state to
UFSHCD_STATE_EH_SCHEDULED_NON_FATAL which would allow requests to go
through ufshcd_queuecommand() even though the error handler is running.
Block that hole by checking whether the error handler is in progress.

Link: https://lore.kernel.org/r/20211008084048.257498-1-adrian.hunter@intel.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit d489f18ad1fc33ab9b60dc40fe3851bb0d87de28)
Change-Id: I11215e2217ed392ff3b57a89fc963558a1ef39bc
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 270d2fa0cb80b..c873f25a6e682 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2717,7 +2717,19 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 
 	switch (hba->ufshcd_state) {
 	case UFSHCD_STATE_OPERATIONAL:
+		break;
 	case UFSHCD_STATE_EH_SCHEDULED_NON_FATAL:
+		/*
+		 * SCSI error handler can call ->queuecommand() while UFS error
+		 * handler is in progress. Error interrupts could change the
+		 * state from UFSHCD_STATE_RESET to
+		 * UFSHCD_STATE_EH_SCHEDULED_NON_FATAL. Prevent requests
+		 * being issued in that case.
+		 */
+		if (ufshcd_eh_in_progress(hba)) {
+			err = SCSI_MLQUEUE_HOST_BUSY;
+			goto out;
+		}
 		break;
 	case UFSHCD_STATE_EH_SCHEDULED_FATAL:
 		/*
-- 
GitLab


From 495d7f2c47a2a51a1df62b372e8caeb30e174dfc Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Mon, 29 Nov 2021 15:28:12 -0800
Subject: [PATCH 1705/4878] ANDROID: scsi: Introduce scsi_done()

Before backporting upstream patches that use scsi_done(), introduce that
function. See also upstream commit a710eacb9d13 ("scsi: core: Rename
scsi_mq_done() into scsi_done() and export it").

Bug: 204438323
Change-Id: Ic6624fe7b9958febea28ef37b3fe5f37a573c7ee
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 include/scsi/scsi_cmnd.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index e8389b00ee74a..4c08a7bd969f2 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -173,6 +173,12 @@ static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
 	return *(struct scsi_driver **)rq->rq_disk->private_data;
 }
 
+/* A helper function to make it easier to backport upstream SCSI patches. */
+static inline void scsi_done(struct scsi_cmnd *cmd)
+{
+	cmd->scsi_done(cmd);
+}
+
 extern void scsi_finish_command(struct scsi_cmnd *cmd);
 
 extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
-- 
GitLab


From 067dcfc9ad7bebd83ed7da6d00a1f4022cf6e0d8 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 7 Oct 2021 13:46:01 -0700
Subject: [PATCH 1706/4878] UPSTREAM: scsi: ufs: Call scsi_done() directly

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Link: https://lore.kernel.org/r/20211007204618.2196847-1-bvanassche@acm.org
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 35c3730a965722e1b6b13539b9d4fab8116554b5)
Change-Id: I1bb22589483854847bbc747d25ae3857e9a85067
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c873f25a6e682..08e2c5ea20da3 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2745,7 +2745,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 		if (hba->pm_op_in_progress) {
 			hba->force_reset = true;
 			set_host_byte(cmd, DID_BAD_TARGET);
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			goto out;
 		}
 		fallthrough;
@@ -2754,7 +2754,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 		goto out;
 	case UFSHCD_STATE_ERROR:
 		set_host_byte(cmd, DID_ERROR);
-		cmd->scsi_done(cmd);
+		scsi_done(cmd);
 		goto out;
 	}
 
@@ -5306,7 +5306,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 			/* Mark completed command as NULL in LRB */
 			lrbp->cmd = NULL;
 			/* Do not touch lrbp after scsi done */
-			cmd->scsi_done(cmd);
+			scsi_done(cmd);
 			ufshcd_release(hba);
 			update_scaling = true;
 		} else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||
-- 
GitLab


From 7f40473693ed9cd7589ffcdd60ac1c10900304b3 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Sat, 16 Oct 2021 08:58:00 +0800
Subject: [PATCH 1707/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Introduce
 default delay for reference clock

Introduce default delay time for gating or ungating reference clock instead
of ambiguous magic numbers.

The defined value is suitable for all current MediaTek UFS platforms.

Link: https://lore.kernel.org/r/20211016005802.7729-2-stanley.chu@mediatek.com
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit fc65e933fbcce09eb6d0b3080694229f6add38bf)
Change-Id: I6da2d8bbad10031631ec0c46d9aab714e90f2f19
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 13 ++++++++-----
 drivers/scsi/ufs/ufs-mediatek.h |  1 +
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d1696db70ce8d..2c7d12a30493f 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -282,7 +282,7 @@ out:
 }
 
 static void ufs_mtk_setup_ref_clk_wait_us(struct ufs_hba *hba,
-					  u16 gating_us, u16 ungating_us)
+					  u16 gating_us)
 {
 	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
 
@@ -293,7 +293,7 @@ static void ufs_mtk_setup_ref_clk_wait_us(struct ufs_hba *hba,
 		host->ref_clk_gating_wait_us = gating_us;
 	}
 
-	host->ref_clk_ungating_wait_us = ungating_us;
+	host->ref_clk_ungating_wait_us = REFCLK_DEFAULT_WAIT_US;
 }
 
 static void ufs_mtk_dbg_sel(struct ufs_hba *hba)
@@ -1102,11 +1102,14 @@ static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba)
 	 * requirements.
 	 */
 	if (mid == UFS_VENDOR_SAMSUNG)
-		ufs_mtk_setup_ref_clk_wait_us(hba, 1, 1);
+		ufs_mtk_setup_ref_clk_wait_us(hba, 1);
 	else if (mid == UFS_VENDOR_SKHYNIX)
-		ufs_mtk_setup_ref_clk_wait_us(hba, 30, 30);
+		ufs_mtk_setup_ref_clk_wait_us(hba, 30);
 	else if (mid == UFS_VENDOR_TOSHIBA)
-		ufs_mtk_setup_ref_clk_wait_us(hba, 100, 32);
+		ufs_mtk_setup_ref_clk_wait_us(hba, 100);
+	else
+		ufs_mtk_setup_ref_clk_wait_us(hba,
+					      REFCLK_DEFAULT_WAIT_US);
 
 	return 0;
 }
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index c96b9b529ee2e..414dca86c09ff 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -34,6 +34,7 @@
 #define REFCLK_ACK                  BIT(1)
 
 #define REFCLK_REQ_TIMEOUT_US       3000
+#define REFCLK_DEFAULT_WAIT_US      32
 
 /*
  * Other attributes
-- 
GitLab


From 70c86239b88dd455fc69caf53818dc05b38efd29 Mon Sep 17 00:00:00 2001
From: Stanley Chu <stanley.chu@mediatek.com>
Date: Sat, 16 Oct 2021 08:58:01 +0800
Subject: [PATCH 1708/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Fix build error
 caused by use of sched_clock()

Add proper header for using sched_clock().

Link: https://lore.kernel.org/r/20211016005802.7729-3-stanley.chu@mediatek.com
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 1eaff502a8f132d518946bc652d53df79a9a4cd9)
Change-Id: I5ea3989cab602257208dc718a99012ab00f1722e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 2c7d12a30493f..bc193ba46b31c 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
+#include <linux/sched/clock.h>
 #include <linux/soc/mediatek/mtk_sip_svc.h>
 
 #include "ufshcd.h"
-- 
GitLab


From 38afb244f1b0ace8cbd51a463c18e7a0c72b8833 Mon Sep 17 00:00:00 2001
From: Peter Wang <peter.wang@mediatek.com>
Date: Sat, 16 Oct 2021 08:58:02 +0800
Subject: [PATCH 1709/4878] UPSTREAM: scsi: ufs: ufs-mediatek: Fix wrong
 location for ref-clk delay

Fix the location of delay for ref-clk gating and ungating in
ufs_mtk_setup_ref_clk().

Link: https://lore.kernel.org/r/20211016005802.7729-4-stanley.chu@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 25d542a8537455a3335448a3fa53cf3704883389)
Change-Id: I574d95dfb99231d79f2199711653de49da4d95e7
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index bc193ba46b31c..d0a8e1319ab36 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -247,9 +247,9 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
 
 	if (on) {
 		ufs_mtk_ref_clk_notify(on, res);
-		ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10);
 		ufshcd_writel(hba, REFCLK_REQUEST, REG_UFS_REFCLK_CTRL);
 	} else {
+		ufshcd_delay_us(host->ref_clk_gating_wait_us, 10);
 		ufshcd_writel(hba, REFCLK_RELEASE, REG_UFS_REFCLK_CTRL);
 	}
 
@@ -274,10 +274,10 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
 
 out:
 	host->ref_clk_enabled = on;
-	if (!on) {
-		ufshcd_delay_us(host->ref_clk_gating_wait_us, 10);
+	if (on)
+		ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10);
+	else
 		ufs_mtk_ref_clk_notify(on, res);
-	}
 
 	return 0;
 }
-- 
GitLab


From 445826751fec31d289bfc056f81a904771e83662 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 18 Oct 2021 15:20:01 +0200
Subject: [PATCH 1710/4878] UPSTREAM: scsi: ufs: mediatek: Avoid sched_clock()
 misuse

sched_clock() is not meant to be used in portable driver code, and assuming
a particular clock frequency is not how this is meant to be used. It also
causes a build failure because of a missing header inclusion:

drivers/scsi/ufs/ufs-mediatek.c:321:12: error: implicit declaration of function 'sched_clock' [-Werror,-Wimplicit-function-declaration]
        timeout = sched_clock() + retry_ms * 1000000UL;

A better interface to use here ktime_get_mono_fast_ns(), which works mostly
like ktime_get() but is safe to use inside of a suspend callback.

Link: https://lore.kernel.org/r/20211018132022.2281589-1-arnd@kernel.org
Fixes: 9561f58442e4 ("scsi: ufs: mediatek: Support vops pre suspend to disable auto-hibern8")
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit bb4a8dcb4e9498deccaf7b257449044968e514c7)
Change-Id: I32346261fb049e53364ec76ab3360658f8977f42
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index d0a8e1319ab36..fc5b214347b36 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -319,15 +319,15 @@ static void ufs_mtk_wait_idle_state(struct ufs_hba *hba,
 	u32 val, sm;
 	bool wait_idle;
 
-	timeout = sched_clock() + retry_ms * 1000000UL;
-
+	/* cannot use plain ktime_get() in suspend */
+	timeout = ktime_get_mono_fast_ns() + retry_ms * 1000000UL;
 
 	/* wait a specific time after check base */
 	udelay(10);
 	wait_idle = false;
 
 	do {
-		time_checked = sched_clock();
+		time_checked = ktime_get_mono_fast_ns();
 		ufs_mtk_dbg_sel(hba);
 		val = ufshcd_readl(hba, REG_UFS_PROBE);
 
-- 
GitLab


From 81634d1e846cf74271af02ea8e2923b4b6e4db9a Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:16 -0700
Subject: [PATCH 1711/4878] UPSTREAM: scsi: ufs: core: Improve source code
 comments

Make the descriptions above data structures that come from the UFS
specification match the terminology from that specification. This makes it
easier to find these data structures while reading the UFS specification.

Link: https://lore.kernel.org/r/20211020214024.2007615-3-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 91bb765ccab1a067e646c9dbed0b5ed0bb7c39c9)
Change-Id: Iac05887666b245b463ec1b418efb7046bfaf0dd7
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshci.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 473a46e6daaaa..3a96b739452d7 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -429,7 +429,7 @@ struct ufshcd_sg_entry {
 };
 
 /**
- * struct utp_transfer_cmd_desc - UFS Command Descriptor structure
+ * struct utp_transfer_cmd_desc - UTP Command Descriptor (UCD)
  * @command_upiu: Command UPIU Frame address
  * @response_upiu: Response UPIU Frame address
  * @prd_table: Physical Region Descriptor: an array of SG_ALL struct
@@ -459,7 +459,7 @@ struct request_desc_header {
 };
 
 /**
- * struct utp_transfer_req_desc - UTRD structure
+ * struct utp_transfer_req_desc - UTP Transfer Request Descriptor (UTRD)
  * @header: UTRD header DW-0 to DW-3
  * @command_desc_base_addr_lo: UCD base address low DW-4
  * @command_desc_base_addr_hi: UCD base address high DW-5
-- 
GitLab


From 51fab26dd6d8b667305c672df9ae07cd33f1d999 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:17 -0700
Subject: [PATCH 1712/4878] UPSTREAM: scsi: ufs: core: Improve static type
 checking

Introduce an enumeration type for the overall command status to allow the
compiler to perform more static type checking.

Link: https://lore.kernel.org/r/20211020214024.2007615-4-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 957d63e77a9ce9ef63b2a6b4d1d84d549e427cd8)
Change-Id: I40ee77f1fae5daa463ca6059c3d9708e54173af3
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 9 +++++----
 drivers/scsi/ufs/ufshci.h | 5 ++++-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 08e2c5ea20da3..1fea1fa1e4061 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -729,7 +729,7 @@ static inline bool ufshcd_is_device_present(struct ufs_hba *hba)
  * This function is used to get the OCS field from UTRD
  * Returns the OCS field in the UTRD
  */
-static inline int ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp)
+static enum utp_ocs ufshcd_get_tr_ocs(struct ufshcd_lrb *lrbp)
 {
 	return le32_to_cpu(lrbp->utr_descriptor_ptr->header.dword_2) & MASK_OCS;
 }
@@ -5121,7 +5121,7 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 {
 	int result = 0;
 	int scsi_status;
-	int ocs;
+	enum utp_ocs ocs;
 
 	/* overall command status of utrd */
 	ocs = ufshcd_get_tr_ocs(lrbp);
@@ -6669,7 +6669,8 @@ static int ufshcd_issue_tm_cmd(struct ufs_hba *hba, int lun_id, int task_id,
 		u8 tm_function, u8 *tm_response)
 {
 	struct utp_task_req_desc treq = { { 0 }, };
-	int ocs_value, err;
+	enum utp_ocs ocs_value;
+	int err;
 
 	/* Configure task request descriptor */
 	treq.header.dword_0 = cpu_to_le32(UTP_REQ_DESC_INT_CMD);
@@ -6841,7 +6842,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 	int err;
 	enum dev_cmd_type cmd_type = DEV_CMD_TYPE_QUERY;
 	struct utp_task_req_desc treq = { { 0 }, };
-	int ocs_value;
+	enum utp_ocs ocs_value;
 	u8 tm_f = be32_to_cpu(req_upiu->header.dword_1) >> 16 & MASK_TM_FUNC;
 
 	switch (msgcode) {
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 3a96b739452d7..6549bf27ae9d9 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -389,7 +389,7 @@ enum {
 };
 
 /* Overall command status values */
-enum {
+enum utp_ocs {
 	OCS_SUCCESS			= 0x0,
 	OCS_INVALID_CMD_TABLE_ATTR	= 0x1,
 	OCS_INVALID_PRDT_ATTR		= 0x2,
@@ -402,6 +402,9 @@ enum {
 	OCS_INVALID_CRYPTO_CONFIG	= 0x9,
 	OCS_GENERAL_CRYPTO_ERROR	= 0xA,
 	OCS_INVALID_COMMAND_STATUS	= 0x0F,
+};
+
+enum {
 	MASK_OCS			= 0x0F,
 };
 
-- 
GitLab


From a2e122bb361990d910d6642d862ce13bd71791a7 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:18 -0700
Subject: [PATCH 1713/4878] UPSTREAM: scsi: ufs: core: Log error handler
 activity

Kernel logs are hard to comprehend without information about what the UFS
error handler is doing. Hence this patch that logs information about error
handler activity.

Link: https://lore.kernel.org/r/20211020214024.2007615-5-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 4693fad7d6d4c26fc60ec43fc50f9f3d74e11dbe)
Change-Id: I33006a5fdc1639903a14fbd21fd298a010fa63fc
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 1fea1fa1e4061..84b75652ab8bb 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -135,6 +135,14 @@ enum {
 	UFSHCD_CAN_QUEUE	= 32,
 };
 
+static const char *const ufshcd_state_name[] = {
+	[UFSHCD_STATE_RESET]			= "reset",
+	[UFSHCD_STATE_OPERATIONAL]		= "operational",
+	[UFSHCD_STATE_ERROR]			= "error",
+	[UFSHCD_STATE_EH_SCHEDULED_FATAL]	= "eh_fatal",
+	[UFSHCD_STATE_EH_SCHEDULED_NON_FATAL]	= "eh_non_fatal",
+};
+
 /* UFSHCD error handling flags */
 enum {
 	UFSHCD_EH_IN_PROGRESS = (1 << 0),
@@ -6105,6 +6113,13 @@ static void ufshcd_err_handler(struct work_struct *work)
 
 	hba = container_of(work, struct ufs_hba, eh_work);
 
+	dev_info(hba->dev,
+		 "%s started; HBA state %s; powered %d; shutting down %d; saved_err = %d; saved_uic_err = %d; force_reset = %d%s\n",
+		 __func__, ufshcd_state_name[hba->ufshcd_state],
+		 hba->is_powered, hba->shutting_down, hba->saved_err,
+		 hba->saved_uic_err, hba->force_reset,
+		 ufshcd_is_link_broken(hba) ? "; link is broken" : "");
+
 	down(&hba->host_sem);
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	if (ufshcd_err_handling_should_stop(hba)) {
@@ -6199,6 +6214,8 @@ again:
 			err_xfer = true;
 			goto lock_skip_pending_xfer_clear;
 		}
+		dev_err(hba->dev, "Aborted tag %d / CDB %#02x\n", tag,
+			hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1);
 	}
 
 	/* Clear pending task management requests */
@@ -6279,6 +6296,9 @@ skip_err_handling:
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 	ufshcd_err_handling_unprepare(hba);
 	up(&hba->host_sem);
+
+	dev_info(hba->dev, "%s finished; HBA state %s\n", __func__,
+		 ufshcd_state_name[hba->ufshcd_state]);
 }
 
 /**
@@ -6577,6 +6597,10 @@ static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag)
 	err = ufshcd_wait_for_register(hba,
 			REG_UTP_TASK_REQ_DOOR_BELL,
 			mask, 0, 1000, 1000);
+
+	dev_err(hba->dev, "Clearing task management function with tag %d %s\n",
+		tag, err ? "succeeded" : "failed");
+
 out:
 	return err;
 }
-- 
GitLab


From 772dd34a8353b6011e1233d0640b67de5e1e77e4 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:19 -0700
Subject: [PATCH 1714/4878] UPSTREAM: scsi: ufs: core: Export
 ufshcd_schedule_eh_work()

Make it possible to call ufshcd_schedule_eh_work() from other source files
than ufshcd.c. Additionally, convert a source code comment into a
lockdep_assert_held() call.

Link: https://lore.kernel.org/r/20211020214024.2007615-6-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 267a59f6a5e4e5e3cb5b0f88c4a58a738833d8b3)
Change-Id: If65e27bbea90cf59cdef1941c972b08ba784e92f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 6 +++---
 drivers/scsi/ufs/ufshcd.h | 1 +
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 84b75652ab8bb..49111dd401809 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -247,7 +247,6 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, bool scale_up);
 static irqreturn_t ufshcd_intr(int irq, void *__hba);
 static int ufshcd_change_power_mode(struct ufs_hba *hba,
 			     struct ufs_pa_layer_attr *pwr_mode);
-static void ufshcd_schedule_eh_work(struct ufs_hba *hba);
 static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on);
 static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on);
 static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba,
@@ -5951,9 +5950,10 @@ static inline bool ufshcd_is_saved_err_fatal(struct ufs_hba *hba)
 	       (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK));
 }
 
-/* host lock must be held before calling this func */
-static inline void ufshcd_schedule_eh_work(struct ufs_hba *hba)
+void ufshcd_schedule_eh_work(struct ufs_hba *hba)
 {
+	lockdep_assert_held(hba->host->host_lock);
+
 	/* handle fatal errors only when link is not in error state */
 	if (hba->ufshcd_state != UFSHCD_STATE_ERROR) {
 		if (hba->force_reset || ufshcd_is_link_broken(hba) ||
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 25cb03487b632..82f6507585387 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1077,6 +1077,7 @@ int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
 void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk);
 void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val);
 void ufshcd_hba_stop(struct ufs_hba *hba);
+void ufshcd_schedule_eh_work(struct ufs_hba *hba);
 
 static inline void check_upiu_size(void)
 {
-- 
GitLab


From 57c43110fff41081819fa33950d2bf9293bd9d92 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:20 -0700
Subject: [PATCH 1715/4878] UPSTREAM: scsi: ufs: core: Make it easier to add
 new debugfs attributes

Introduce an array for debugfs attributes to make it easier to add new
debugfs attributes. Change the value of the inode.i_private pointer for
debugfs attributes from a pointer to the HBA data structure to a pointer to
the attribute description for the stats attribute. Store the HBA pointer in
the private data of the parent inode instead.

Link: https://lore.kernel.org/r/20211020214024.2007615-7-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit e0022c6c2906ddd85416c793948118d1b6b86b36)
Change-Id: I77dac09269f1cc4343d94e7df482f6125ad820af
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-debugfs.c | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-debugfs.c b/drivers/scsi/ufs/ufs-debugfs.c
index 4e1ff209b9336..1d4e5aa4b7627 100644
--- a/drivers/scsi/ufs/ufs-debugfs.c
+++ b/drivers/scsi/ufs/ufs-debugfs.c
@@ -8,6 +8,18 @@
 
 static struct dentry *ufs_debugfs_root;
 
+struct ufs_debugfs_attr {
+	const char			*name;
+	mode_t				mode;
+	const struct file_operations	*fops;
+};
+
+/* @file corresponds to a debugfs attribute in directory hba->debugfs_root. */
+static inline struct ufs_hba *hba_from_file(const struct file *file)
+{
+	return d_inode(file->f_path.dentry->d_parent)->i_private;
+}
+
 void __init ufs_debugfs_init(void)
 {
 	ufs_debugfs_root = debugfs_create_dir("ufshcd", NULL);
@@ -20,7 +32,7 @@ void ufs_debugfs_exit(void)
 
 static int ufs_debugfs_stats_show(struct seq_file *s, void *data)
 {
-	struct ufs_hba *hba = s->private;
+	struct ufs_hba *hba = hba_from_file(s->file);
 	struct ufs_event_hist *e = hba->ufs_stats.event;
 
 #define PRT(fmt, typ) \
@@ -126,13 +138,28 @@ static void ufs_debugfs_restart_ee(struct work_struct *work)
 	ufs_debugfs_put_user_access(hba);
 }
 
+static const struct ufs_debugfs_attr ufs_attrs[] = {
+	{ "stats", 0400, &ufs_debugfs_stats_fops },
+	{ }
+};
+
 void ufs_debugfs_hba_init(struct ufs_hba *hba)
 {
+	const struct ufs_debugfs_attr *attr;
+	struct dentry *root;
+
 	/* Set default exception event rate limit period to 20ms */
 	hba->debugfs_ee_rate_limit_ms = 20;
 	INIT_DELAYED_WORK(&hba->debugfs_ee_work, ufs_debugfs_restart_ee);
-	hba->debugfs_root = debugfs_create_dir(dev_name(hba->dev), ufs_debugfs_root);
-	debugfs_create_file("stats", 0400, hba->debugfs_root, hba, &ufs_debugfs_stats_fops);
+
+	root = debugfs_create_dir(dev_name(hba->dev), ufs_debugfs_root);
+	if (IS_ERR_OR_NULL(root))
+		return;
+	hba->debugfs_root = root;
+	d_inode(root)->i_private = hba;
+	for (attr = ufs_attrs; attr->name; attr++)
+		debugfs_create_file(attr->name, attr->mode, root, (void *)attr,
+				    attr->fops);
 	debugfs_create_file("exception_event_mask", 0600, hba->debugfs_root,
 			    hba, &ee_usr_mask_fops);
 	debugfs_create_u32("exception_event_rate_limit_ms", 0600, hba->debugfs_root,
-- 
GitLab


From d5ddaeaaec1d5b1893716722939c0656438127b5 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:21 -0700
Subject: [PATCH 1716/4878] UPSTREAM: scsi: ufs: core: Add debugfs attributes
 for triggering the UFS EH

Make it easier to test the impact of the UFS error handler on software that
submits SCSI commands to the UFS driver.

Link: https://lore.kernel.org/r/20211020214024.2007615-8-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 7340faae947400907e5e7581444712110d2811d5)
Change-Id: I2e3091db8ba68bee34d489e6386acac09d8eb2d4
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-debugfs.c | 65 ++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-debugfs.c b/drivers/scsi/ufs/ufs-debugfs.c
index 1d4e5aa4b7627..4a0bbcf1757ab 100644
--- a/drivers/scsi/ufs/ufs-debugfs.c
+++ b/drivers/scsi/ufs/ufs-debugfs.c
@@ -138,8 +138,73 @@ static void ufs_debugfs_restart_ee(struct work_struct *work)
 	ufs_debugfs_put_user_access(hba);
 }
 
+static int ufs_saved_err_show(struct seq_file *s, void *data)
+{
+	struct ufs_debugfs_attr *attr = s->private;
+	struct ufs_hba *hba = hba_from_file(s->file);
+	const int *p;
+
+	if (strcmp(attr->name, "saved_err") == 0) {
+		p = &hba->saved_err;
+	} else if (strcmp(attr->name, "saved_uic_err") == 0) {
+		p = &hba->saved_uic_err;
+	} else {
+		return -ENOENT;
+	}
+
+	seq_printf(s, "%d\n", *p);
+	return 0;
+}
+
+static ssize_t ufs_saved_err_write(struct file *file, const char __user *buf,
+				   size_t count, loff_t *ppos)
+{
+	struct ufs_debugfs_attr *attr = file->f_inode->i_private;
+	struct ufs_hba *hba = hba_from_file(file);
+	char val_str[16] = { };
+	int val, ret;
+
+	if (count > sizeof(val_str))
+		return -EINVAL;
+	if (copy_from_user(val_str, buf, count))
+		return -EFAULT;
+	ret = kstrtoint(val_str, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	spin_lock_irq(hba->host->host_lock);
+	if (strcmp(attr->name, "saved_err") == 0) {
+		hba->saved_err = val;
+	} else if (strcmp(attr->name, "saved_uic_err") == 0) {
+		hba->saved_uic_err = val;
+	} else {
+		ret = -ENOENT;
+	}
+	if (ret == 0)
+		ufshcd_schedule_eh_work(hba);
+	spin_unlock_irq(hba->host->host_lock);
+
+	return ret < 0 ? ret : count;
+}
+
+static int ufs_saved_err_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, ufs_saved_err_show, inode->i_private);
+}
+
+static const struct file_operations ufs_saved_err_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ufs_saved_err_open,
+	.read		= seq_read,
+	.write		= ufs_saved_err_write,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static const struct ufs_debugfs_attr ufs_attrs[] = {
 	{ "stats", 0400, &ufs_debugfs_stats_fops },
+	{ "saved_err", 0600, &ufs_saved_err_fops },
+	{ "saved_uic_err", 0600, &ufs_saved_err_fops },
 	{ }
 };
 
-- 
GitLab


From 7792f62546d967e0dae2bb31f92082ab6182a536 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Mon, 29 Nov 2021 15:52:18 -0800
Subject: [PATCH 1717/4878] UPSTREAM: scsi: ufs: core: Remove three superfluous
 casts

Casting an int explicitly to u16 when passed as an argument to a function
is not necessary.

Since prd_table and ucd_prdt_ptr both have type struct ufshcd_sg_entry *,
remove the casts from assignments of these two to each other.

This patch does not change any functionality.

Link: https://lore.kernel.org/r/20211020214024.2007615-9-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 3ad317a1f932f3dfdedfba405f7b2d02154e20e1)
[ bvanassche: Only remove two casts since the third is necessary in the Android code base ]
Change-Id: I831e375c5c9d04ff3ea1b737ef57f2e7c39b81db
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 49111dd401809..9cfd70a128132 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2401,9 +2401,9 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 				cpu_to_le16(sg_segments * hba->sg_entry_size);
 		else
 			lrbp->utr_descriptor_ptr->prd_table_length =
-				cpu_to_le16((u16) (sg_segments));
+				cpu_to_le16(sg_segments);
 
-		prd = (struct ufshcd_sg_entry *)lrbp->ucd_prdt_ptr;
+		prd = lrbp->ucd_prdt_ptr;
 
 		scsi_for_each_sg(cmd, sg, sg_segments, i) {
 			prd->size =
-- 
GitLab


From 61e77e142fd60bb38821b842fbfc9ee1e67edb68 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 20 Oct 2021 14:40:24 -0700
Subject: [PATCH 1718/4878] UPSTREAM: scsi: ufs: core: Micro-optimize
 ufshcd_map_sg()

Replace two cpu_to_le32() calls by a single cpu_to_le64() call.

Additionally, issue a warning if the length of an scatter gather list
element exceeds what is allowed by the UFSHCI specification.

Link: https://lore.kernel.org/r/20211020214024.2007615-11-bvanassche@acm.org
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 1ea7d8026300f72344bb574a12667f9543f73348)
Change-Id: I3138a3d3a75585a58b6ee6eebfaa9ed931877580
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 19 +++++++++++++------
 drivers/scsi/ufs/ufshci.h |  6 ++----
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9cfd70a128132..904aebb555b3a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2406,12 +2406,19 @@ static int ufshcd_map_sg(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 		prd = lrbp->ucd_prdt_ptr;
 
 		scsi_for_each_sg(cmd, sg, sg_segments, i) {
-			prd->size =
-				cpu_to_le32(((u32) sg_dma_len(sg))-1);
-			prd->base_addr =
-				cpu_to_le32(lower_32_bits(sg->dma_address));
-			prd->upper_addr =
-				cpu_to_le32(upper_32_bits(sg->dma_address));
+			const unsigned int len = sg_dma_len(sg);
+
+			/*
+			 * From the UFSHCI spec: "Data Byte Count (DBC): A '0'
+			 * based value that indicates the length, in bytes, of
+			 * the data block. A maximum of length of 256KB may
+			 * exist for any entry. Bits 1:0 of this field shall be
+			 * 11b to indicate Dword granularity. A value of '3'
+			 * indicates 4 bytes, '7' indicates 8 bytes, etc."
+			 */
+			WARN_ONCE(len > 256 * 1024, "len = %#x\n", len);
+			prd->size = cpu_to_le32(len - 1);
+			prd->addr = cpu_to_le64(sg->dma_address);
 			prd->reserved = 0;
 			prd = (void *)prd + hba->sg_entry_size;
 		}
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 6549bf27ae9d9..073d5cfc1e2dd 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -415,14 +415,12 @@ enum {
 
 /**
  * struct ufshcd_sg_entry - UFSHCI PRD Entry
- * @base_addr: Lower 32bit physical address DW-0
- * @upper_addr: Upper 32bit physical address DW-1
+ * @addr: Physical address; DW-0 and DW-1.
  * @reserved: Reserved for future use DW-2
  * @size: size of physical segment DW-3
  */
 struct ufshcd_sg_entry {
-	__le32    base_addr;
-	__le32    upper_addr;
+	__le64    addr;
 	__le32    reserved;
 	__le32    size;
 	/*
-- 
GitLab


From f4f2747081a8d2dc0fce81b42719709f31ccfc82 Mon Sep 17 00:00:00 2001
From: jongmin jeong <jjmin.jeong@samsung.com>
Date: Mon, 18 Oct 2021 21:42:03 +0900
Subject: [PATCH 1719/4878] UPSTREAM: scsi: ufs: Add quirk to enable host
 controller without PH configuration

Samsung ExynosAuto v9 SoC virtual hosts do not support device management.
Add a quirk to skip the physical host interface configuration part that
cannot be performed in the virtual host.

Link: https://lore.kernel.org/r/20211018124216.153072-3-chanho61.park@samsung.com
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: jongmin jeong <jjmin.jeong@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 10fb4f87438d99b2ef06aea38ca2f0454725e8b5)
[ bvanassche: removed the now superflous UFSHCD_QUIRK_SKIP_INTERFACE_CONFIGURATION constant ]
Change-Id: I612ae0e5cce0f964b4b6901549dd45035a7c0422
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 drivers/scsi/ufs/ufshcd.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 904aebb555b3a..279ce0eb7a259 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8061,7 +8061,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params)
 	if (ret)
 		goto out;
 
-	if (hba->quirks & UFSHCD_QUIRK_SKIP_INTERFACE_CONFIGURATION)
+	if (hba->quirks & UFSHCD_QUIRK_SKIP_PH_CONFIGURATION)
 		goto out;
 
 	/* Debug counters initialization */
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 82f6507585387..e366f618c64e3 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -610,9 +610,9 @@ enum ufshcd_quirks {
 
 	/*
 	 * This quirk needs to be enabled if the host controller cannot
-	 * support interface configuration.
+	 * support physical host configuration.
 	 */
-	UFSHCD_QUIRK_SKIP_INTERFACE_CONFIGURATION	= 1 << 16,
+	UFSHCD_QUIRK_SKIP_PH_CONFIGURATION		= 1 << 16,
 
 	/*
 	 * This quirk needs to be enabled if the host controller supports inline
-- 
GitLab


From 237dd6ed38121be41b2793ba7c40b168d413fe03 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:04 +0900
Subject: [PATCH 1720/4878] UPSTREAM: scsi: ufs: ufs-exynos: Change pclk
 available max value

To support 167MHz PCLK, we need to adjust the maximum value.

Link: https://lore.kernel.org/r/20211018124216.153072-4-chanho61.park@samsung.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit e387d448e4899f4bbf7c8151472a2fed72063d82)
Change-Id: Ic33802c9cb63b4b5087115a0a4e123d2f925164b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index dadf4fd10dd80..0a31f77a5f48d 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -99,7 +99,7 @@ struct exynos_ufs;
 #define PA_HIBERN8TIME_VAL	0x20
 
 #define PCLK_AVAIL_MIN	70000000
-#define PCLK_AVAIL_MAX	133000000
+#define PCLK_AVAIL_MAX	167000000
 
 struct exynos_ufs_uic_attr {
 	/* TX Attributes */
-- 
GitLab


From 07b2dc67978e616508606fe2348db41a36f5ee82 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:05 +0900
Subject: [PATCH 1721/4878] UPSTREAM: scsi: ufs: ufs-exynos: Simplify drv_data
 retrieval

The compatible field of exynos_ufs_drv_data is not necessary because
of_device_id already has it. Thus, we don't need it anymore and we can get
drv_data by device_get_match_data.

Link: https://lore.kernel.org/r/20211018124216.153072-5-chanho61.park@samsung.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 51cc3bb54286639e364061c36998f43d00fdd2b4)
Change-Id: I6c388021d74474ef6b808326a8c83240b3a64d45
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 10 +---------
 drivers/scsi/ufs/ufs-exynos.h |  3 +--
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 30d0c1aba0c7c..57210114ca0a8 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -893,17 +893,10 @@ static int exynos_ufs_post_link(struct ufs_hba *hba)
 static int exynos_ufs_parse_dt(struct device *dev, struct exynos_ufs *ufs)
 {
 	struct device_node *np = dev->of_node;
-	struct exynos_ufs_drv_data *drv_data = &exynos_ufs_drvs;
 	struct exynos_ufs_uic_attr *attr;
 	int ret = 0;
 
-	while (drv_data->compatible) {
-		if (of_device_is_compatible(np, drv_data->compatible)) {
-			ufs->drv_data = drv_data;
-			break;
-		}
-		drv_data++;
-	}
+	ufs->drv_data = device_get_match_data(dev);
 
 	if (ufs->drv_data && ufs->drv_data->uic_attr) {
 		attr = ufs->drv_data->uic_attr;
@@ -1262,7 +1255,6 @@ static struct exynos_ufs_uic_attr exynos7_uic_attr = {
 };
 
 static struct exynos_ufs_drv_data exynos_ufs_drvs = {
-	.compatible		= "samsung,exynos7-ufs",
 	.uic_attr		= &exynos7_uic_attr,
 	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
 				  UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR |
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 0a31f77a5f48d..2e72aabaa6732 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -142,7 +142,6 @@ struct exynos_ufs_uic_attr {
 };
 
 struct exynos_ufs_drv_data {
-	char *compatible;
 	struct exynos_ufs_uic_attr *uic_attr;
 	unsigned int quirks;
 	unsigned int opts;
@@ -191,7 +190,7 @@ struct exynos_ufs {
 	struct ufs_pa_layer_attr dev_req_params;
 	struct ufs_phy_time_cfg t_cfg;
 	ktime_t entry_hibern8_t;
-	struct exynos_ufs_drv_data *drv_data;
+	const struct exynos_ufs_drv_data *drv_data;
 
 	u32 opts;
 #define EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL		BIT(0)
-- 
GitLab


From de400d76471af1a1238a85e45e1f3884d5987b35 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:06 +0900
Subject: [PATCH 1722/4878] UPSTREAM: scsi: ufs: ufs-exynos: Add refclkout_stop
 control

This patch adds REFCLKOUT_STOP control to CLK_STOP_MASK. This permits
enabling/disabling reference clock out control for the UFS device.

Link: https://lore.kernel.org/r/20211018124216.153072-6-chanho61.park@samsung.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit e1f3e22e93e620a7ba1b2ab74c9e8ed618a87de7)
Change-Id: I221505ec339f4b866679d937c9ea2ddb2637f0e8
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 57210114ca0a8..e75736ce15342 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -48,10 +48,11 @@
 #define HCI_ERR_EN_T_LAYER	0x84
 #define HCI_ERR_EN_DME_LAYER	0x88
 #define HCI_CLKSTOP_CTRL	0xB0
+#define REFCLKOUT_STOP		BIT(4)
 #define REFCLK_STOP		BIT(2)
 #define UNIPRO_MCLK_STOP	BIT(1)
 #define UNIPRO_PCLK_STOP	BIT(0)
-#define CLK_STOP_MASK		(REFCLK_STOP |\
+#define CLK_STOP_MASK		(REFCLKOUT_STOP | REFCLK_STOP |\
 				 UNIPRO_MCLK_STOP |\
 				 UNIPRO_PCLK_STOP)
 #define HCI_MISC		0xB4
-- 
GitLab


From a4f71a3a699d6772b36d5c634b57d16ecb35fe49 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:07 +0900
Subject: [PATCH 1723/4878] UPSTREAM: scsi: ufs: ufs-exynos: Add setup_clocks
 callback

Add setup_clocks callback to control/gate clocks by ufshcd.  To avoid
calling before initialization, check whether UFS is on or not and call it
initially from pre_link callback.

Link: https://lore.kernel.org/r/20211018124216.153072-7-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 91c49e7e82d739a7e14f883422e1003ee7a447d8)
Change-Id: I2e9f8b4438bf0cd24a5cf2fe4e2160940940a99f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index e75736ce15342..226e7e64fad41 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -794,6 +794,27 @@ static void exynos_ufs_config_intr(struct exynos_ufs *ufs, u32 errs, u8 index)
 	}
 }
 
+static int exynos_ufs_setup_clocks(struct ufs_hba *hba, bool on,
+				   enum ufs_notify_change_status status)
+{
+	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
+
+	if (!ufs)
+		return 0;
+
+	if (on && status == PRE_CHANGE) {
+		if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL)
+			exynos_ufs_disable_auto_ctrl_hcc(ufs);
+		exynos_ufs_ungate_clks(ufs);
+	} else if (!on && status == POST_CHANGE) {
+		exynos_ufs_gate_clks(ufs);
+		if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL)
+			exynos_ufs_enable_auto_ctrl_hcc(ufs);
+	}
+
+	return 0;
+}
+
 static int exynos_ufs_pre_link(struct ufs_hba *hba)
 {
 	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
@@ -812,6 +833,8 @@ static int exynos_ufs_pre_link(struct ufs_hba *hba)
 	exynos_ufs_config_phy_time_attr(ufs);
 	exynos_ufs_config_phy_cap_attr(ufs);
 
+	exynos_ufs_setup_clocks(hba, true, PRE_CHANGE);
+
 	if (ufs->drv_data->pre_link)
 		ufs->drv_data->pre_link(ufs);
 
@@ -1202,6 +1225,7 @@ static struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
 	.hce_enable_notify		= exynos_ufs_hce_enable_notify,
 	.link_startup_notify		= exynos_ufs_link_startup_notify,
 	.pwr_change_notify		= exynos_ufs_pwr_change_notify,
+	.setup_clocks			= exynos_ufs_setup_clocks,
 	.setup_xfer_req			= exynos_ufs_specify_nexus_t_xfer_req,
 	.setup_task_mgmt		= exynos_ufs_specify_nexus_t_tm_req,
 	.hibern8_notify			= exynos_ufs_hibern8_notify,
-- 
GitLab


From 218cd63e6c2b0a059e782e8d8facd0c1e6be3214 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:08 +0900
Subject: [PATCH 1724/4878] UPSTREAM: scsi: ufs: ufs-exynos: Support custom
 version of ufs_hba_variant_ops

By default, ufs_hba_exynos_ops will be used. Add support for a custom
version of ufs_hba_variant_ops because some variants of exynos-ufs will use
only few callbacks.

Link: https://lore.kernel.org/r/20211018124216.153072-8-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 533b81d674452d180c5801290fd84a5c7ddeaaeb)
Change-Id: I82ebf7233981b5c467d085f6a58d06898d0d0f0d
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 8 +++++++-
 drivers/scsi/ufs/ufs-exynos.h | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 226e7e64fad41..5536b104794a1 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1237,8 +1237,14 @@ static int exynos_ufs_probe(struct platform_device *pdev)
 {
 	int err;
 	struct device *dev = &pdev->dev;
+	const struct ufs_hba_variant_ops *vops = &ufs_hba_exynos_ops;
+	const struct exynos_ufs_drv_data *drv_data =
+		device_get_match_data(dev);
 
-	err = ufshcd_pltfrm_init(pdev, &ufs_hba_exynos_ops);
+	if (drv_data && drv_data->vops)
+		vops = drv_data->vops;
+
+	err = ufshcd_pltfrm_init(pdev, vops);
 	if (err)
 		dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
 
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 2e72aabaa6732..74f556d8a0033 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -142,6 +142,7 @@ struct exynos_ufs_uic_attr {
 };
 
 struct exynos_ufs_drv_data {
+	const struct ufs_hba_variant_ops *vops;
 	struct exynos_ufs_uic_attr *uic_attr;
 	unsigned int quirks;
 	unsigned int opts;
-- 
GitLab


From 2fac28e49ff22131572b036d360616bc769912eb Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:09 +0900
Subject: [PATCH 1725/4878] UPSTREAM: scsi: ufs: ufs-exynos: Add
 EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR option

To skip exynos_ufs_config_phy_*_attr settings for exynos-ufs variant,
provide EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR as an opts flag.

For the ExynosAuto v9 SoC's controller, M-Phy timing setting is not
required and most of vendor-specific configuration will be performed in the
pre_link callback function.

Link: https://lore.kernel.org/r/20211018124216.153072-9-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit a271885ac6b2b5655d42eb8e13fdbf4b45a35d83)
Change-Id: I2f8a6f812da6b8c1ac02cabfb65112c3f7be0e19
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 6 ++++--
 drivers/scsi/ufs/ufs-exynos.h | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 5536b104794a1..ce9ac3bf5e95d 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -830,8 +830,10 @@ static int exynos_ufs_pre_link(struct ufs_hba *hba)
 
 	/* m-phy */
 	exynos_ufs_phy_init(ufs);
-	exynos_ufs_config_phy_time_attr(ufs);
-	exynos_ufs_config_phy_cap_attr(ufs);
+	if (!(ufs->opts & EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR)) {
+		exynos_ufs_config_phy_time_attr(ufs);
+		exynos_ufs_config_phy_cap_attr(ufs);
+	}
 
 	exynos_ufs_setup_clocks(hba, true, PRE_CHANGE);
 
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 74f556d8a0033..89955ae226dca 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -199,6 +199,7 @@ struct exynos_ufs {
 #define EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL	BIT(2)
 #define EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX	BIT(3)
 #define EXYNOS_UFS_OPT_USE_SW_HIBERN8_TIMER	BIT(4)
+#define EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR	BIT(5)
 };
 
 #define for_each_ufs_rx_lane(ufs, i) \
-- 
GitLab


From d86915734d1bb3d4f7dd5f81b8d2f0d0c1df87a5 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:10 +0900
Subject: [PATCH 1726/4878] UPSTREAM: scsi: ufs: ufs-exynos: Factor out priv
 data init

To leverage the initialization code for the other variant of the exynos-ufs
driver, factor out the assignment part.

Link: https://lore.kernel.org/r/20211018124216.153072-10-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 3f02cc9ea7bd7dda313543001a4de0bf935d0b1e)
Change-Id: Ie84b9db59bfb1b1b0a64e08f7572208ec689ca5b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index ce9ac3bf5e95d..6bb4bbb2af215 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -946,6 +946,18 @@ out:
 	return ret;
 }
 
+static inline void exynos_ufs_priv_init(struct ufs_hba *hba,
+					struct exynos_ufs *ufs)
+{
+	ufs->hba = hba;
+	ufs->opts = ufs->drv_data->opts;
+	ufs->rx_sel_idx = PA_MAXDATALANES;
+	if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX)
+		ufs->rx_sel_idx = 0;
+	hba->priv = (void *)ufs;
+	hba->quirks = ufs->drv_data->quirks;
+}
+
 static int exynos_ufs_init(struct ufs_hba *hba)
 {
 	struct device *dev = hba->dev;
@@ -995,13 +1007,8 @@ static int exynos_ufs_init(struct ufs_hba *hba)
 	if (ret)
 		goto phy_off;
 
-	ufs->hba = hba;
-	ufs->opts = ufs->drv_data->opts;
-	ufs->rx_sel_idx = PA_MAXDATALANES;
-	if (ufs->opts & EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX)
-		ufs->rx_sel_idx = 0;
-	hba->priv = (void *)ufs;
-	hba->quirks = ufs->drv_data->quirks;
+	exynos_ufs_priv_init(hba, ufs);
+
 	if (ufs->drv_data->drv_init) {
 		ret = ufs->drv_data->drv_init(dev, ufs);
 		if (ret) {
-- 
GitLab


From 79d2dd51f1274066b47e0260efd9ea2cc2f10a0d Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:11 +0900
Subject: [PATCH 1727/4878] UPSTREAM: scsi: ufs: ufs-exynos: Add
 pre/post_hce_enable drv callbacks

Add driver-specific pre/post_hce_enable callbacks to execute extra
initializations before and after hce_enable_notify callback.

Link: https://lore.kernel.org/r/20211018124216.153072-11-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 52e5035f7b079be7cc1db3eb06e1fd78d0ec9341)
Change-Id: Ia5bbf8ec86ed14fa85a441fec71fdc858eda0e81
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 10 ++++++++++
 drivers/scsi/ufs/ufs-exynos.h |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 6bb4bbb2af215..c9e9336553222 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1136,6 +1136,12 @@ static int exynos_ufs_hce_enable_notify(struct ufs_hba *hba,
 
 	switch (status) {
 	case PRE_CHANGE:
+		if (ufs->drv_data->pre_hce_enable) {
+			ret = ufs->drv_data->pre_hce_enable(ufs);
+			if (ret)
+				return ret;
+		}
+
 		ret = exynos_ufs_host_reset(hba);
 		if (ret)
 			return ret;
@@ -1145,6 +1151,10 @@ static int exynos_ufs_hce_enable_notify(struct ufs_hba *hba,
 		exynos_ufs_calc_pwm_clk_div(ufs);
 		if (!(ufs->opts & EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL))
 			exynos_ufs_enable_auto_ctrl_hcc(ufs);
+
+		if (ufs->drv_data->post_hce_enable)
+			ret = ufs->drv_data->post_hce_enable(ufs);
+
 		break;
 	}
 
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 89955ae226dca..02308faea4228 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -154,6 +154,8 @@ struct exynos_ufs_drv_data {
 				struct ufs_pa_layer_attr *pwr);
 	int (*post_pwr_change)(struct exynos_ufs *ufs,
 				struct ufs_pa_layer_attr *pwr);
+	int (*pre_hce_enable)(struct exynos_ufs *ufs);
+	int (*post_hce_enable)(struct exynos_ufs *ufs);
 };
 
 struct ufs_phy_time_cfg {
-- 
GitLab


From 2900d68b00ca960fdaabaf9afd1c66133c885847 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:12 +0900
Subject: [PATCH 1728/4878] UPSTREAM: scsi: ufs: ufs-exynos: Support ExynosAuto
 v9 UFS

Add support for the ExynosAuto v9 SoC. This requires controlling the UFS IP
shareability register via syscon and regmap.  The offset of the register
can be different according to the UFS instance and SoC specific offset
value. As a result, we need to get the offset value from DT property.

Unlike exynos7, this implementation has a different M-PHY setting which
must be configured via exynosauto_ufs_pre_link.

Link: https://lore.kernel.org/r/20211018124216.153072-12-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit cc52e15397cc5dc773d3c6792b98352d3209f93f)
Change-Id: I56e108aef24749da2a5d2204d6e90388f68c5292
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 118 ++++++++++++++++++++++++++++++++++
 drivers/scsi/ufs/ufs-exynos.h |  18 ++++++
 2 files changed, 136 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index c9e9336553222..2ff9bbd8b821f 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -12,8 +12,10 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/mfd/syscon.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
+#include <linux/regmap.h>
 
 #include "ufshcd.h"
 #include "ufshcd-pltfrm.h"
@@ -75,6 +77,12 @@
 				 UIC_TRANSPORT_NO_CONNECTION_RX |\
 				 UIC_TRANSPORT_BAD_TC)
 
+/* FSYS UFS Shareability */
+#define UFS_WR_SHARABLE		BIT(2)
+#define UFS_RD_SHARABLE		BIT(1)
+#define UFS_SHARABLE		(UFS_WR_SHARABLE | UFS_RD_SHARABLE)
+#define UFS_SHAREABILITY_OFFSET	0x710
+
 enum {
 	UNIPRO_L1_5 = 0,/* PHY Adapter */
 	UNIPRO_L2,	/* Data Link */
@@ -150,6 +158,89 @@ static int exynos7_ufs_drv_init(struct device *dev, struct exynos_ufs *ufs)
 	return 0;
 }
 
+static int exynosauto_ufs_drv_init(struct device *dev, struct exynos_ufs *ufs)
+{
+	struct exynos_ufs_uic_attr *attr = ufs->drv_data->uic_attr;
+
+	/* IO Coherency setting */
+	if (ufs->sysreg) {
+		return regmap_update_bits(ufs->sysreg,
+					  ufs->shareability_reg_offset,
+					  UFS_SHARABLE, UFS_SHARABLE);
+	}
+
+	attr->tx_dif_p_nsec = 3200000;
+
+	return 0;
+}
+
+static int exynosauto_ufs_pre_link(struct exynos_ufs *ufs)
+{
+	struct ufs_hba *hba = ufs->hba;
+	int i;
+	u32 tx_line_reset_period, rx_line_reset_period;
+
+	rx_line_reset_period = (RX_LINE_RESET_TIME * ufs->mclk_rate) / NSEC_PER_MSEC;
+	tx_line_reset_period = (TX_LINE_RESET_TIME * ufs->mclk_rate) / NSEC_PER_MSEC;
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x40);
+	for_each_ufs_rx_lane(ufs, i) {
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_CLK_PRD, i),
+			       DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate));
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_CLK_PRD_EN, i), 0x0);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_LINERESET_VALUE2, i),
+			       (rx_line_reset_period >> 16) & 0xFF);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_LINERESET_VALUE1, i),
+			       (rx_line_reset_period >> 8) & 0xFF);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_RX_LINERESET_VALUE0, i),
+			       (rx_line_reset_period) & 0xFF);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x2f, i), 0x79);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x84, i), 0x1);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x25, i), 0xf6);
+	}
+
+	for_each_ufs_tx_lane(ufs, i) {
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_TX_CLK_PRD, i),
+			       DIV_ROUND_UP(NSEC_PER_SEC, ufs->mclk_rate));
+		/* Not to affect VND_TX_LINERESET_PVALUE to VND_TX_CLK_PRD */
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_TX_CLK_PRD_EN, i),
+			       0x02);
+
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_TX_LINERESET_PVALUE2, i),
+			       (tx_line_reset_period >> 16) & 0xFF);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_TX_LINERESET_PVALUE1, i),
+			       (tx_line_reset_period >> 8) & 0xFF);
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VND_TX_LINERESET_PVALUE0, i),
+			       (tx_line_reset_period) & 0xFF);
+
+		/* TX PWM Gear Capability / PWM_G1_ONLY */
+		ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(0x04, i), 0x1);
+	}
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(0x200), 0x0);
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0x0);
+
+	ufshcd_dme_set(hba, UIC_ARG_MIB(0xa011), 0x8000);
+
+	return 0;
+}
+
+static int exynosauto_ufs_pre_pwr_change(struct exynos_ufs *ufs,
+					 struct ufs_pa_layer_attr *pwr)
+{
+	struct ufs_hba *hba = ufs->hba;
+
+	/* PACP_PWR_req and delivered to the remote DME */
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA0), 12000);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA1), 32000);
+	ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PWRMODEUSERDATA2), 16000);
+
+	return 0;
+}
+
 static int exynos7_ufs_pre_link(struct exynos_ufs *ufs)
 {
 	struct ufs_hba *hba = ufs->hba;
@@ -932,6 +1023,17 @@ static int exynos_ufs_parse_dt(struct device *dev, struct exynos_ufs *ufs)
 		goto out;
 	}
 
+	ufs->sysreg = syscon_regmap_lookup_by_phandle(np, "samsung,sysreg");
+	if (IS_ERR(ufs->sysreg))
+		ufs->sysreg = NULL;
+	else {
+		if (of_property_read_u32_index(np, "samsung,sysreg", 1,
+					       &ufs->shareability_reg_offset)) {
+			dev_warn(dev, "can't get an offset from sysreg. Set to default value\n");
+			ufs->shareability_reg_offset = UFS_SHAREABILITY_OFFSET;
+		}
+	}
+
 	ufs->pclk_avail_min = PCLK_AVAIL_MIN;
 	ufs->pclk_avail_max = PCLK_AVAIL_MAX;
 
@@ -1304,6 +1406,20 @@ static struct exynos_ufs_uic_attr exynos7_uic_attr = {
 	.pa_dbg_option_suite		= 0x30103,
 };
 
+static struct exynos_ufs_drv_data exynosauto_ufs_drvs = {
+	.uic_attr		= &exynos7_uic_attr,
+	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
+				  UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR |
+				  UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR |
+				  UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING,
+	.opts			= EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL |
+				  EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR |
+				  EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX,
+	.drv_init		= exynosauto_ufs_drv_init,
+	.pre_link		= exynosauto_ufs_pre_link,
+	.pre_pwr_change		= exynosauto_ufs_pre_pwr_change,
+};
+
 static struct exynos_ufs_drv_data exynos_ufs_drvs = {
 	.uic_attr		= &exynos7_uic_attr,
 	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
@@ -1329,6 +1445,8 @@ static struct exynos_ufs_drv_data exynos_ufs_drvs = {
 static const struct of_device_id exynos_ufs_of_match[] = {
 	{ .compatible = "samsung,exynos7-ufs",
 	  .data	      = &exynos_ufs_drvs },
+	{ .compatible = "samsung,exynosautov9-ufs",
+	  .data	      = &exynosauto_ufs_drvs },
 	{},
 };
 
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 02308faea4228..1c33e5466082b 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -56,6 +56,22 @@
 #define TX_GRAN_NVAL_10_08	0x0296
 #define TX_GRAN_NVAL_H(v)	(((v) >> 8) & 0x3)
 
+#define VND_TX_CLK_PRD		0xAA
+#define VND_TX_CLK_PRD_EN	0xA9
+#define VND_TX_LINERESET_PVALUE0	0xAD
+#define VND_TX_LINERESET_PVALUE1	0xAC
+#define VND_TX_LINERESET_PVALUE2	0xAB
+
+#define TX_LINE_RESET_TIME	3200
+
+#define VND_RX_CLK_PRD		0x12
+#define VND_RX_CLK_PRD_EN	0x11
+#define VND_RX_LINERESET_VALUE0	0x1D
+#define VND_RX_LINERESET_VALUE1	0x1C
+#define VND_RX_LINERESET_VALUE2	0x1B
+
+#define RX_LINE_RESET_TIME	1000
+
 #define RX_FILLER_ENABLE	0x0316
 #define RX_FILLER_EN		(1 << 1)
 #define RX_LINERESET_VAL	0x0317
@@ -194,6 +210,8 @@ struct exynos_ufs {
 	struct ufs_phy_time_cfg t_cfg;
 	ktime_t entry_hibern8_t;
 	const struct exynos_ufs_drv_data *drv_data;
+	struct regmap *sysreg;
+	u32 shareability_reg_offset;
 
 	u32 opts;
 #define EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL		BIT(0)
-- 
GitLab


From 0abfa95aba1e13cf94ec8a88b647de8b1f98da23 Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:14 +0900
Subject: [PATCH 1729/4878] UPSTREAM: scsi: ufs: ufs-exynos: Multi-host
 configuration for ExynosAuto v9

The UFS controller of the ExynosAuto v9 SoC supports a multi-host interface
for I/O virtualization. In general, we're using para-virtualized driver to
support a block device by several virtual machines.

Multi-host functionality extends the host controller by providing register
interfaces that can be used by each VM's UFS drivers respectively. This way
we can provide direct access to the UFS device for multiple VMs similar to
PCIe SR-IOV.

We divide this M-HCI as PH (Physical Host) and VHs (Virtual Host). The PH
supports all UFSHCI functions (all SAPs) like a conventional UFSHCI but the
VH only supports data transfer functions. Thus, except UTP_CMD_SAP and
UTP_TMPSAP, the PH should handle all the physical features.

Provide an initial implementation of PH part. M-HCI can support up to four
interfaces (1 for a PH and 3 for VHs) but this patch initially supports
only 1 PH and 1 VH. For this, we uses TASK_TAG[7:5] field so TASK_TAG[4:0]
for 32 doorbell will be supported. After the PH is initiated, this will
send a ready message to VHs through a mailbox register. The message handler
is not fully implemented yet such as supporting reset / abort cases.

Link: https://lore.kernel.org/r/20211018124216.153072-14-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit b52aea54b6bf740b31f675cc1c637a6c5806b37b)
Change-Id: I5e041a78e8b1b4cace5702e673acd0db6ef5449e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 68 +++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 2ff9bbd8b821f..6e6149d99609b 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -83,6 +83,44 @@
 #define UFS_SHARABLE		(UFS_WR_SHARABLE | UFS_RD_SHARABLE)
 #define UFS_SHAREABILITY_OFFSET	0x710
 
+/* Multi-host registers */
+#define MHCTRL			0xC4
+#define MHCTRL_EN_VH_MASK	(0xE)
+#define MHCTRL_EN_VH(vh)	(vh << 1)
+#define PH2VH_MBOX		0xD8
+
+#define MH_MSG_MASK		(0xFF)
+
+#define MH_MSG(id, msg)		((id << 8) | (msg & 0xFF))
+#define MH_MSG_PH_READY		0x1
+#define MH_MSG_VH_READY		0x2
+
+#define ALLOW_INQUIRY		BIT(25)
+#define ALLOW_MODE_SELECT	BIT(24)
+#define ALLOW_MODE_SENSE	BIT(23)
+#define ALLOW_PRE_FETCH		GENMASK(22, 21)
+#define ALLOW_READ_CMD_ALL	GENMASK(20, 18)	/* read_6/10/16 */
+#define ALLOW_READ_BUFFER	BIT(17)
+#define ALLOW_READ_CAPACITY	GENMASK(16, 15)
+#define ALLOW_REPORT_LUNS	BIT(14)
+#define ALLOW_REQUEST_SENSE	BIT(13)
+#define ALLOW_SYNCHRONIZE_CACHE	GENMASK(8, 7)
+#define ALLOW_TEST_UNIT_READY	BIT(6)
+#define ALLOW_UNMAP		BIT(5)
+#define ALLOW_VERIFY		BIT(4)
+#define ALLOW_WRITE_CMD_ALL	GENMASK(3, 1)	/* write_6/10/16 */
+
+#define ALLOW_TRANS_VH_DEFAULT	(ALLOW_INQUIRY | ALLOW_MODE_SELECT | \
+				 ALLOW_MODE_SENSE | ALLOW_PRE_FETCH | \
+				 ALLOW_READ_CMD_ALL | ALLOW_READ_BUFFER | \
+				 ALLOW_READ_CAPACITY | ALLOW_REPORT_LUNS | \
+				 ALLOW_REQUEST_SENSE | ALLOW_SYNCHRONIZE_CACHE | \
+				 ALLOW_TEST_UNIT_READY | ALLOW_UNMAP | \
+				 ALLOW_VERIFY | ALLOW_WRITE_CMD_ALL)
+
+#define HCI_MH_ALLOWABLE_TRAN_OF_VH		0x30C
+#define HCI_MH_IID_IN_TASK_TAG			0X308
+
 enum {
 	UNIPRO_L1_5 = 0,/* PHY Adapter */
 	UNIPRO_L2,	/* Data Link */
@@ -174,6 +212,20 @@ static int exynosauto_ufs_drv_init(struct device *dev, struct exynos_ufs *ufs)
 	return 0;
 }
 
+static int exynosauto_ufs_post_hce_enable(struct exynos_ufs *ufs)
+{
+	struct ufs_hba *hba = ufs->hba;
+
+	/* Enable Virtual Host #1 */
+	ufshcd_rmwl(hba, MHCTRL_EN_VH_MASK, MHCTRL_EN_VH(1), MHCTRL);
+	/* Default VH Transfer permissions */
+	hci_writel(ufs, ALLOW_TRANS_VH_DEFAULT, HCI_MH_ALLOWABLE_TRAN_OF_VH);
+	/* IID information is replaced in TASKTAG[7:5] instead of IID in UCD */
+	hci_writel(ufs, 0x1, HCI_MH_IID_IN_TASK_TAG);
+
+	return 0;
+}
+
 static int exynosauto_ufs_pre_link(struct exynos_ufs *ufs)
 {
 	struct ufs_hba *hba = ufs->hba;
@@ -241,6 +293,20 @@ static int exynosauto_ufs_pre_pwr_change(struct exynos_ufs *ufs,
 	return 0;
 }
 
+static int exynosauto_ufs_post_pwr_change(struct exynos_ufs *ufs,
+					  struct ufs_pa_layer_attr *pwr)
+{
+	struct ufs_hba *hba = ufs->hba;
+	u32 enabled_vh;
+
+	enabled_vh = ufshcd_readl(hba, MHCTRL) & MHCTRL_EN_VH_MASK;
+
+	/* Send physical host ready message to virtual hosts */
+	ufshcd_writel(hba, MH_MSG(enabled_vh, MH_MSG_PH_READY), PH2VH_MBOX);
+
+	return 0;
+}
+
 static int exynos7_ufs_pre_link(struct exynos_ufs *ufs)
 {
 	struct ufs_hba *hba = ufs->hba;
@@ -1416,8 +1482,10 @@ static struct exynos_ufs_drv_data exynosauto_ufs_drvs = {
 				  EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR |
 				  EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX,
 	.drv_init		= exynosauto_ufs_drv_init,
+	.post_hce_enable	= exynosauto_ufs_post_hce_enable,
 	.pre_link		= exynosauto_ufs_pre_link,
 	.pre_pwr_change		= exynosauto_ufs_pre_pwr_change,
+	.post_pwr_change	= exynosauto_ufs_post_pwr_change,
 };
 
 static struct exynos_ufs_drv_data exynos_ufs_drvs = {
-- 
GitLab


From c109660045fd81f6172a9b1e33f4781cb4abfd8a Mon Sep 17 00:00:00 2001
From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:15 +0900
Subject: [PATCH 1730/4878] UPSTREAM: scsi: ufs: ufs-exynos: Introduce
 ExynosAuto v9 virtual host

Introduce virtual host driver for ExynosAuto v9 UFS mHCI.

The VH (Virtual Host) only supports data transfer functions so most of
physical features must be disabled by setting the following quirks:

 - UFSHCD_QUIRK_BROKEN_UIC_CMD

 - UFSHCD_QUIRK_SKIP_PH_CONFIGURATION

Before initialization, the VH must wait until PH is ready. This wait is
currently implemented via polling.

Link: https://lore.kernel.org/r/20211018124216.153072-15-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit be39f4fd8dd430053304b2ff6db712c0b3168e7f)
Change-Id: I31b703d40028d1abc043623193dd8a4f7dd55fa3
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 86 +++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index 6e6149d99609b..cd26bc82462ed 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -121,6 +121,8 @@
 #define HCI_MH_ALLOWABLE_TRAN_OF_VH		0x30C
 #define HCI_MH_IID_IN_TASK_TAG			0X308
 
+#define PH_READY_TIMEOUT_MS			(5 * MSEC_PER_SEC)
+
 enum {
 	UNIPRO_L1_5 = 0,/* PHY Adapter */
 	UNIPRO_L2,	/* Data Link */
@@ -1406,6 +1408,70 @@ static int exynos_ufs_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	return 0;
 }
 
+static int exynosauto_ufs_vh_link_startup_notify(struct ufs_hba *hba,
+						 enum ufs_notify_change_status status)
+{
+	if (status == POST_CHANGE) {
+		ufshcd_set_link_active(hba);
+		ufshcd_set_ufs_dev_active(hba);
+	}
+
+	return 0;
+}
+
+static int exynosauto_ufs_vh_wait_ph_ready(struct ufs_hba *hba)
+{
+	u32 mbox;
+	ktime_t start, stop;
+
+	start = ktime_get();
+	stop = ktime_add(start, ms_to_ktime(PH_READY_TIMEOUT_MS));
+
+	do {
+		mbox = ufshcd_readl(hba, PH2VH_MBOX);
+		/* TODO: Mailbox message protocols between the PH and VHs are
+		 * not implemented yet. This will be supported later
+		 */
+		if ((mbox & MH_MSG_MASK) == MH_MSG_PH_READY)
+			return 0;
+
+		usleep_range(40, 50);
+	} while (ktime_before(ktime_get(), stop));
+
+	return -ETIME;
+}
+
+static int exynosauto_ufs_vh_init(struct ufs_hba *hba)
+{
+	struct device *dev = hba->dev;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct exynos_ufs *ufs;
+	int ret;
+
+	ufs = devm_kzalloc(dev, sizeof(*ufs), GFP_KERNEL);
+	if (!ufs)
+		return -ENOMEM;
+
+	/* exynos-specific hci */
+	ufs->reg_hci = devm_platform_ioremap_resource_byname(pdev, "vs_hci");
+	if (IS_ERR(ufs->reg_hci)) {
+		dev_err(dev, "cannot ioremap for hci vendor register\n");
+		return PTR_ERR(ufs->reg_hci);
+	}
+
+	ret = exynosauto_ufs_vh_wait_ph_ready(hba);
+	if (ret)
+		return ret;
+
+	ufs->drv_data = device_get_match_data(dev);
+	if (!ufs->drv_data)
+		return -ENODEV;
+
+	exynos_ufs_priv_init(hba, ufs);
+
+	return 0;
+}
+
 static struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
 	.name				= "exynos_ufs",
 	.init				= exynos_ufs_init,
@@ -1420,6 +1486,12 @@ static struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
 	.resume				= exynos_ufs_resume,
 };
 
+static struct ufs_hba_variant_ops ufs_hba_exynosauto_vh_ops = {
+	.name				= "exynosauto_ufs_vh",
+	.init				= exynosauto_ufs_vh_init,
+	.link_startup_notify		= exynosauto_ufs_vh_link_startup_notify,
+};
+
 static int exynos_ufs_probe(struct platform_device *pdev)
 {
 	int err;
@@ -1488,6 +1560,18 @@ static struct exynos_ufs_drv_data exynosauto_ufs_drvs = {
 	.post_pwr_change	= exynosauto_ufs_post_pwr_change,
 };
 
+static struct exynos_ufs_drv_data exynosauto_ufs_vh_drvs = {
+	.vops			= &ufs_hba_exynosauto_vh_ops,
+	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
+				  UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR |
+				  UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR |
+				  UFSHCI_QUIRK_BROKEN_HCE |
+				  UFSHCD_QUIRK_BROKEN_UIC_CMD |
+				  UFSHCD_QUIRK_SKIP_PH_CONFIGURATION |
+				  UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING,
+	.opts			= EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX,
+};
+
 static struct exynos_ufs_drv_data exynos_ufs_drvs = {
 	.uic_attr		= &exynos7_uic_attr,
 	.quirks			= UFSHCD_QUIRK_PRDT_BYTE_GRAN |
@@ -1515,6 +1599,8 @@ static const struct of_device_id exynos_ufs_of_match[] = {
 	  .data	      = &exynos_ufs_drvs },
 	{ .compatible = "samsung,exynosautov9-ufs",
 	  .data	      = &exynosauto_ufs_drvs },
+	{ .compatible = "samsung,exynosautov9-ufs-vh",
+	  .data	      = &exynosauto_ufs_vh_drvs },
 	{},
 };
 
-- 
GitLab


From ab8501635543f3a82c7338d00e3b05642c5388b5 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Sat, 6 Nov 2021 17:46:50 +0100
Subject: [PATCH 1731/4878] UPSTREAM: scsi: ufs: Wrap Universal Flash Storage
 drivers in SCSI_UFSHCD

The build only descends into drivers/scsi/ufs/ if SCSI_UFSHCD is enabled.
Hence all later config symbols should depend on SCSI_UFSHCD to prevent
asking the user about config symbols for driver code that won't be built
anyway.  Unfortunately not all symbols have that dependency.

Fix this by wrapping them all into a big if/endif block.  Remove the now
superfluous explicit dependencies on SCSI_UFSHCD from all symbols that
already had it.

Link: https://lore.kernel.org/r/20211106164650.1571068-1-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit d28a78537d1d79f1ba6b9e68f5d44cc869045afe)
Change-Id: I797669d6e0d7891b438a1929718eed05ffe8a9a2
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/Kconfig | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index b2521b830be72..a43f4d947f1bf 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -50,9 +50,11 @@ config SCSI_UFSHCD
 	  However, do not compile this as a module if your root file system
 	  (the one containing the directory /) is located on a UFS device.
 
+if SCSI_UFSHCD
+
 config SCSI_UFSHCD_PCI
 	tristate "PCI bus based UFS Controller support"
-	depends on SCSI_UFSHCD && PCI
+	depends on PCI
 	help
 	  This selects the PCI UFS Host Controller Interface. Select this if
 	  you have UFS Host Controller with PCI Interface.
@@ -71,7 +73,6 @@ config SCSI_UFS_DWC_TC_PCI
 
 config SCSI_UFSHCD_PLATFORM
 	tristate "Platform bus based UFS Controller support"
-	depends on SCSI_UFSHCD
 	depends on HAS_IOMEM
 	help
 	  This selects the UFS host controller support. Select this if
@@ -147,7 +148,6 @@ config SCSI_UFS_TI_J721E
 
 config SCSI_UFS_BSG
 	bool "Universal Flash Storage BSG device node"
-	depends on SCSI_UFSHCD
 	select BLK_DEV_BSGLIB
 	help
 	  Universal Flash Storage (UFS) is SCSI transport specification for
@@ -177,7 +177,7 @@ config SCSI_UFS_EXYNOS
 
 config SCSI_UFS_CRYPTO
 	bool "UFS Crypto Engine Support"
-	depends on SCSI_UFSHCD && BLK_INLINE_ENCRYPTION
+	depends on BLK_INLINE_ENCRYPTION
 	help
 	  Enable Crypto Engine Support in UFS.
 	  Enabling this makes it possible for the kernel to use the crypto
@@ -186,7 +186,6 @@ config SCSI_UFS_CRYPTO
 
 config SCSI_UFS_HPB
 	bool "Support UFS Host Performance Booster"
-	depends on SCSI_UFSHCD
 	help
 	  The UFS HPB feature improves random read performance. It caches
 	  L2P (logical to physical) map of UFS to host DRAM. The driver uses HPB
@@ -195,7 +194,7 @@ config SCSI_UFS_HPB
 
 config SCSI_UFS_FAULT_INJECTION
 	bool "UFS Fault Injection Support"
-	depends on SCSI_UFSHCD && FAULT_INJECTION
+	depends on FAULT_INJECTION
 	help
 	  Enable fault injection support in the UFS driver. This makes it easier
 	  to test the UFS error handler and abort handler.
@@ -208,3 +207,5 @@ config SCSI_UFS_HWMON
 	  a hardware monitoring device will be created for the UFS device.
 
 	  If unsure, say N.
+
+endif
-- 
GitLab


From 23fea0b40e7e9d516f4a98cac54f5bfe0fa9484e Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Sat, 6 Nov 2021 17:47:41 +0100
Subject: [PATCH 1732/4878] UPSTREAM: scsi: ufs: Fix double space in
 SCSI_UFS_HWMON description

There's no reason to have a double space between "UFS" and "Temperature",
hence drop it.

Link: https://lore.kernel.org/r/20211106164741.1571206-1-geert@linux-m68k.org
Fixes: e88e2d32200a ("scsi: ufs: core: Probe for temperature notification support")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 659109a45c6c5a3c81a8ce35dea59318c44cfa6e)
Change-Id: I6c981cde8cc7c50602dc1bb30d9c944b10c23129
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index a43f4d947f1bf..9fe27b01904e7 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -200,7 +200,7 @@ config SCSI_UFS_FAULT_INJECTION
 	  to test the UFS error handler and abort handler.
 
 config SCSI_UFS_HWMON
-	bool "UFS  Temperature Notification"
+	bool "UFS Temperature Notification"
 	depends on SCSI_UFSHCD=HWMON || HWMON=y
 	help
 	  This provides support for UFS hardware monitoring. If enabled,
-- 
GitLab


From 33fe044f6a9e8977686a6a09f0bf33e5cc75257e Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Tue, 9 Nov 2021 18:48:08 +0000
Subject: [PATCH 1733/4878] bpf: Fix toctou on read-only map's constant scalar
 tracking

commit 353050be4c19e102178ccc05988101887c25ae53 upstream.

Commit a23740ec43ba ("bpf: Track contents of read-only maps as scalars") is
checking whether maps are read-only both from BPF program side and user space
side, and then, given their content is constant, reading out their data via
map->ops->map_direct_value_addr() which is then subsequently used as known
scalar value for the register, that is, it is marked as __mark_reg_known()
with the read value at verification time. Before a23740ec43ba, the register
content was marked as an unknown scalar so the verifier could not make any
assumptions about the map content.

The current implementation however is prone to a TOCTOU race, meaning, the
value read as known scalar for the register is not guaranteed to be exactly
the same at a later point when the program is executed, and as such, the
prior made assumptions of the verifier with regards to the program will be
invalid which can cause issues such as OOB access, etc.

While the BPF_F_RDONLY_PROG map flag is always fixed and required to be
specified at map creation time, the map->frozen property is initially set to
false for the map given the map value needs to be populated, e.g. for global
data sections. Once complete, the loader "freezes" the map from user space
such that no subsequent updates/deletes are possible anymore. For the rest
of the lifetime of the map, this freeze one-time trigger cannot be undone
anymore after a successful BPF_MAP_FREEZE cmd return. Meaning, any new BPF_*
cmd calls which would update/delete map entries will be rejected with -EPERM
since map_get_sys_perms() removes the FMODE_CAN_WRITE permission. This also
means that pending update/delete map entries must still complete before this
guarantee is given. This corner case is not an issue for loaders since they
create and prepare such program private map in successive steps.

However, a malicious user is able to trigger this TOCTOU race in two different
ways: i) via userfaultfd, and ii) via batched updates. For i) userfaultfd is
used to expand the competition interval, so that map_update_elem() can modify
the contents of the map after map_freeze() and bpf_prog_load() were executed.
This works, because userfaultfd halts the parallel thread which triggered a
map_update_elem() at the time where we copy key/value from the user buffer and
this already passed the FMODE_CAN_WRITE capability test given at that time the
map was not "frozen". Then, the main thread performs the map_freeze() and
bpf_prog_load(), and once that had completed successfully, the other thread
is woken up to complete the pending map_update_elem() which then changes the
map content. For ii) the idea of the batched update is similar, meaning, when
there are a large number of updates to be processed, it can increase the
competition interval between the two. It is therefore possible in practice to
modify the contents of the map after executing map_freeze() and bpf_prog_load().

One way to fix both i) and ii) at the same time is to expand the use of the
map's map->writecnt. The latter was introduced in fc9702273e2e ("bpf: Add mmap()
support for BPF_MAP_TYPE_ARRAY") and further refined in 1f6cb19be2e2 ("bpf:
Prevent re-mmap()'ing BPF map as writable for initially r/o mapping") with
the rationale to make a writable mmap()'ing of a map mutually exclusive with
read-only freezing. The counter indicates writable mmap() mappings and then
prevents/fails the freeze operation. Its semantics can be expanded beyond
just mmap() by generally indicating ongoing write phases. This would essentially
span any parallel regular and batched flavor of update/delete operation and
then also have map_freeze() fail with -EBUSY. For the check_mem_access() in
the verifier we expand upon the bpf_map_is_rdonly() check ensuring that all
last pending writes have completed via bpf_map_write_active() test. Once the
map->frozen is set and bpf_map_write_active() indicates a map->writecnt of 0
only then we are really guaranteed to use the map's data as known constants.
For map->frozen being set and pending writes in process of still being completed
we fall back to marking that register as unknown scalar so we don't end up
making assumptions about it. With this, both TOCTOU reproducers from i) and
ii) are fixed.

Note that the map->writecnt has been converted into a atomic64 in the fix in
order to avoid a double freeze_mutex mutex_{un,}lock() pair when updating
map->writecnt in the various map update/delete BPF_* cmd flavors. Spanning
the freeze_mutex over entire map update/delete operations in syscall side
would not be possible due to then causing everything to be serialized.
Similarly, something like synchronize_rcu() after setting map->frozen to wait
for update/deletes to complete is not possible either since it would also
have to span the user copy which can sleep. On the libbpf side, this won't
break d66562fba1ce ("libbpf: Add BPF object skeleton support") as the
anonymous mmap()-ed "map initialization image" is remapped as a BPF map-backed
mmap()-ed memory where for .rodata it's non-writable.

Fixes: a23740ec43ba ("bpf: Track contents of read-only maps as scalars")
Reported-by: w1tcher.bupt@gmail.com
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
[fix conflict to call bpf_map_write_active_dec() in err_put block.
fix conflict to insert new functions after find_and_alloc_map().]
Reference: CVE-2021-4001
Signed-off-by: Masami Ichikawa(CIP) <masami.ichikawa@cybertrust.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/bpf.h   |  3 ++-
 kernel/bpf/syscall.c  | 57 +++++++++++++++++++++++++++----------------
 kernel/bpf/verifier.c | 17 ++++++++++++-
 3 files changed, 54 insertions(+), 23 deletions(-)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 1f62a4eec283c..474a0d852614f 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -173,7 +173,7 @@ struct bpf_map {
 	atomic64_t usercnt;
 	struct work_struct work;
 	struct mutex freeze_mutex;
-	u64 writecnt; /* writable mmap cnt; protected by freeze_mutex */
+	atomic64_t writecnt;
 };
 
 static inline bool map_value_has_spin_lock(const struct bpf_map *map)
@@ -1252,6 +1252,7 @@ void bpf_map_charge_move(struct bpf_map_memory *dst,
 void *bpf_map_area_alloc(u64 size, int numa_node);
 void *bpf_map_area_mmapable_alloc(u64 size, int numa_node);
 void bpf_map_area_free(void *base);
+bool bpf_map_write_active(const struct bpf_map *map);
 void bpf_map_init_from_attr(struct bpf_map *map, union bpf_attr *attr);
 int  generic_map_lookup_batch(struct bpf_map *map,
 			      const union bpf_attr *attr,
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 5b6da64da46d7..bb9a9cb1f321e 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -127,6 +127,21 @@ static struct bpf_map *find_and_alloc_map(union bpf_attr *attr)
 	return map;
 }
 
+static void bpf_map_write_active_inc(struct bpf_map *map)
+{
+	atomic64_inc(&map->writecnt);
+}
+
+static void bpf_map_write_active_dec(struct bpf_map *map)
+{
+	atomic64_dec(&map->writecnt);
+}
+
+bool bpf_map_write_active(const struct bpf_map *map)
+{
+	return atomic64_read(&map->writecnt) != 0;
+}
+
 static u32 bpf_map_value_size(struct bpf_map *map)
 {
 	if (map->map_type == BPF_MAP_TYPE_PERCPU_HASH ||
@@ -588,11 +603,8 @@ static void bpf_map_mmap_open(struct vm_area_struct *vma)
 {
 	struct bpf_map *map = vma->vm_file->private_data;
 
-	if (vma->vm_flags & VM_MAYWRITE) {
-		mutex_lock(&map->freeze_mutex);
-		map->writecnt++;
-		mutex_unlock(&map->freeze_mutex);
-	}
+	if (vma->vm_flags & VM_MAYWRITE)
+		bpf_map_write_active_inc(map);
 }
 
 /* called for all unmapped memory region (including initial) */
@@ -600,11 +612,8 @@ static void bpf_map_mmap_close(struct vm_area_struct *vma)
 {
 	struct bpf_map *map = vma->vm_file->private_data;
 
-	if (vma->vm_flags & VM_MAYWRITE) {
-		mutex_lock(&map->freeze_mutex);
-		map->writecnt--;
-		mutex_unlock(&map->freeze_mutex);
-	}
+	if (vma->vm_flags & VM_MAYWRITE)
+		bpf_map_write_active_dec(map);
 }
 
 static const struct vm_operations_struct bpf_map_default_vmops = {
@@ -654,7 +663,7 @@ static int bpf_map_mmap(struct file *filp, struct vm_area_struct *vma)
 		goto out;
 
 	if (vma->vm_flags & VM_MAYWRITE)
-		map->writecnt++;
+		bpf_map_write_active_inc(map);
 out:
 	mutex_unlock(&map->freeze_mutex);
 	return err;
@@ -1086,6 +1095,7 @@ static int map_update_elem(union bpf_attr *attr)
 	map = __bpf_map_get(f);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
+	bpf_map_write_active_inc(map);
 	if (!(map_get_sys_perms(map, f) & FMODE_CAN_WRITE)) {
 		err = -EPERM;
 		goto err_put;
@@ -1127,6 +1137,7 @@ free_value:
 free_key:
 	kfree(key);
 err_put:
+	bpf_map_write_active_dec(map);
 	fdput(f);
 	return err;
 }
@@ -1149,6 +1160,7 @@ static int map_delete_elem(union bpf_attr *attr)
 	map = __bpf_map_get(f);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
+	bpf_map_write_active_inc(map);
 	if (!(map_get_sys_perms(map, f) & FMODE_CAN_WRITE)) {
 		err = -EPERM;
 		goto err_put;
@@ -1179,6 +1191,7 @@ static int map_delete_elem(union bpf_attr *attr)
 out:
 	kfree(key);
 err_put:
+	bpf_map_write_active_dec(map);
 	fdput(f);
 	return err;
 }
@@ -1483,6 +1496,7 @@ static int map_lookup_and_delete_elem(union bpf_attr *attr)
 	map = __bpf_map_get(f);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
+	bpf_map_write_active_inc(map);
 	if (!(map_get_sys_perms(map, f) & FMODE_CAN_READ) ||
 	    !(map_get_sys_perms(map, f) & FMODE_CAN_WRITE)) {
 		err = -EPERM;
@@ -1524,6 +1538,7 @@ free_value:
 free_key:
 	kfree(key);
 err_put:
+	bpf_map_write_active_dec(map);
 	fdput(f);
 	return err;
 }
@@ -1550,8 +1565,7 @@ static int map_freeze(const union bpf_attr *attr)
 	}
 
 	mutex_lock(&map->freeze_mutex);
-
-	if (map->writecnt) {
+	if (bpf_map_write_active(map)) {
 		err = -EBUSY;
 		goto err_put;
 	}
@@ -3976,6 +3990,9 @@ static int bpf_map_do_batch(const union bpf_attr *attr,
 			    union bpf_attr __user *uattr,
 			    int cmd)
 {
+	bool has_read  = cmd == BPF_MAP_LOOKUP_BATCH ||
+			 cmd == BPF_MAP_LOOKUP_AND_DELETE_BATCH;
+	bool has_write = cmd != BPF_MAP_LOOKUP_BATCH;
 	struct bpf_map *map;
 	int err, ufd;
 	struct fd f;
@@ -3988,16 +4005,13 @@ static int bpf_map_do_batch(const union bpf_attr *attr,
 	map = __bpf_map_get(f);
 	if (IS_ERR(map))
 		return PTR_ERR(map);
-
-	if ((cmd == BPF_MAP_LOOKUP_BATCH ||
-	     cmd == BPF_MAP_LOOKUP_AND_DELETE_BATCH) &&
-	    !(map_get_sys_perms(map, f) & FMODE_CAN_READ)) {
+	if (has_write)
+		bpf_map_write_active_inc(map);
+	if (has_read && !(map_get_sys_perms(map, f) & FMODE_CAN_READ)) {
 		err = -EPERM;
 		goto err_put;
 	}
-
-	if (cmd != BPF_MAP_LOOKUP_BATCH &&
-	    !(map_get_sys_perms(map, f) & FMODE_CAN_WRITE)) {
+	if (has_write && !(map_get_sys_perms(map, f) & FMODE_CAN_WRITE)) {
 		err = -EPERM;
 		goto err_put;
 	}
@@ -4010,8 +4024,9 @@ static int bpf_map_do_batch(const union bpf_attr *attr,
 		BPF_DO_BATCH(map->ops->map_update_batch);
 	else
 		BPF_DO_BATCH(map->ops->map_delete_batch);
-
 err_put:
+	if (has_write)
+		bpf_map_write_active_dec(map);
 	fdput(f);
 	return err;
 }
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index a15826a9a644f..5a2b28e6816ee 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -3486,7 +3486,22 @@ static void coerce_reg_to_size(struct bpf_reg_state *reg, int size)
 
 static bool bpf_map_is_rdonly(const struct bpf_map *map)
 {
-	return (map->map_flags & BPF_F_RDONLY_PROG) && map->frozen;
+	/* A map is considered read-only if the following condition are true:
+	 *
+	 * 1) BPF program side cannot change any of the map content. The
+	 *    BPF_F_RDONLY_PROG flag is throughout the lifetime of a map
+	 *    and was set at map creation time.
+	 * 2) The map value(s) have been initialized from user space by a
+	 *    loader and then "frozen", such that no new map update/delete
+	 *    operations from syscall side are possible for the rest of
+	 *    the map's lifetime from that point onwards.
+	 * 3) Any parallel/pending map update/delete operations from syscall
+	 *    side have been completed. Only after that point, it's safe to
+	 *    assume that map value(s) are immutable.
+	 */
+	return (map->map_flags & BPF_F_RDONLY_PROG) &&
+	       READ_ONCE(map->frozen) &&
+	       !bpf_map_write_active(map);
 }
 
 static int bpf_map_direct_read(struct bpf_map *map, int off, int size, u64 *val)
-- 
GitLab


From 854c14b2a15c84eb04d17d4904f843ce0693bfe8 Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Wed, 17 Nov 2021 20:07:34 +0200
Subject: [PATCH 1734/4878] ACPI: Get acpi_device's parent from the parent
 field

commit 9054fc6d57e80c27c0b0632966416144f2092c2b upstream.

Printk modifier %pfw is used to print the full path of the device name.
This is obtained device by device until a device no longer has a parent.

On ACPI getting the parent fwnode is done by calling acpi_get_parent()
which tries to down() a semaphore. But local IRQs are now disabled in
vprintk_store() before the mutex is acquired. This is obviously a problem.

Luckily struct device, embedded in struct acpi_device, has a parent field
already. Use that field to get the parent instead of relying on
acpi_get_parent().

Fixes: 3bd32d6a2ee6 ("lib/vsprintf: Add %pfw conversion specifier for printing fwnode names")
Cc: 5.5+ <stable@vger.kernel.org> # 5.5+
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/property.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index e3dd64aa43737..18bd428f11ac0 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1110,15 +1110,10 @@ struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode)
 		/* All data nodes have parent pointer so just return that */
 		return to_acpi_data_node(fwnode)->parent;
 	} else if (is_acpi_device_node(fwnode)) {
-		acpi_handle handle, parent_handle;
+		struct device *dev = to_acpi_device_node(fwnode)->dev.parent;
 
-		handle = to_acpi_device_node(fwnode)->handle;
-		if (ACPI_SUCCESS(acpi_get_parent(handle, &parent_handle))) {
-			struct acpi_device *adev;
-
-			if (!acpi_bus_get_device(parent_handle, &adev))
-				return acpi_fwnode_handle(adev);
-		}
+		if (dev)
+			return acpi_fwnode_handle(to_acpi_device(dev));
 	}
 
 	return NULL;
-- 
GitLab


From ff721286369e7a038b34ed09ac31af6817dd510a Mon Sep 17 00:00:00 2001
From: Daniele Palmas <dnlplm@gmail.com>
Date: Fri, 19 Nov 2021 15:03:19 +0100
Subject: [PATCH 1735/4878] USB: serial: option: add Telit LE910S1 0x9200
 composition

commit e353f3e88720300c3d72f49a4bea54f42db1fa5e upstream.

Add the following Telit LE910S1 composition:

0x9200: tty

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Link: https://lore.kernel.org/r/20211119140319.10448-1-dnlplm@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c7356718a7c66..b651e546a8104 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1267,6 +1267,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9010),				/* Telit SBL FN980 flashing device */
 	  .driver_info = NCTRL(0) | ZLP },
+	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9200),				/* Telit LE910S1 flashing device */
+	  .driver_info = NCTRL(0) | ZLP },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) },
-- 
GitLab


From 16f1cac8f702a7755630186c7314d49fb89b0319 Mon Sep 17 00:00:00 2001
From: Mingjie Zhang <superzmj@fibocom.com>
Date: Tue, 23 Nov 2021 21:37:57 +0800
Subject: [PATCH 1736/4878] USB: serial: option: add Fibocom FM101-GL variants

commit 88459e3e42760abb2299bbf6cb1026491170e02a upstream.

Update the USB serial option driver support for the Fibocom
FM101-GL Cat.6
LTE modules as there are actually several different variants.
- VID:PID 2cb7:01a2, FM101-GL are laptop M.2 cards (with
  MBIM interfaces for /Linux/Chrome OS)
- VID:PID 2cb7:01a4, FM101-GL for laptop debug M.2 cards(with adb
  interface for /Linux/Chrome OS)

0x01a2: mbim, tty, tty, diag, gnss
0x01a4: mbim, diag, tty, adb, gnss, gnss

Here are the outputs of lsusb -v and usb-devices:

T:  Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 86 Spd=5000 MxCh= 0
D:  Ver= 3.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=2cb7 ProdID=01a2 Rev= 5.04
S:  Manufacturer=Fibocom Wireless Inc.
S:  Product=Fibocom FM101-GL Module
S:  SerialNumber=673326ce
C:* #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=(none)
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=(none)
I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=(none)
I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=(none)

Bus 002 Device 084: ID 2cb7:01a2 Fibocom Wireless Inc. Fibocom FM101-GL Module
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.20
  bDeviceClass            0
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         9
  idVendor           0x2cb7
  idProduct          0x01a2
  bcdDevice            5.04
  iManufacturer           1 Fibocom Wireless Inc.
  iProduct                2 Fibocom FM101-GL Module
  iSerial                 3 673326ce
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x015d
    bNumInterfaces          6
    bConfigurationValue     1
    iConfiguration          4 MBIM_DUN_DUN_DIAG_NMEA
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              896mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass      14
      bFunctionProtocol       0
      iFunction               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass     14
      bInterfaceProtocol      0
      iInterface              5 Fibocom FM101-GL LTE Modem
      CDC Header:
        bcdCDC               1.10
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
      CDC MBIM:
        bcdMBIMVersion       1.00
        wMaxControlMessage   4096
        bNumberFilters       32
        bMaxFilterSize       128
        wMaxSegmentSize      2048
        bmNetworkCapabilities 0x20
          8-byte ntb input size
      CDC MBIM Extended:
        bcdMBIMExtendedVersion           1.00
        bMaxOutstandingCommandMessages     64
        wMTU                             1500
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               9
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0
      bInterfaceProtocol      2
      iInterface              0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0
      bInterfaceProtocol      2
      iInterface              6 MBIM Data
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x8e  EP 14 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               6
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x0f  EP 15 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol     64
      iInterface              0
      ** UNRECOGNIZED:  05 24 00 10 01
      ** UNRECOGNIZED:  05 24 01 00 00
      ** UNRECOGNIZED:  04 24 02 02
      ** UNRECOGNIZED:  05 24 06 00 00
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               9
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol     64
      iInterface              0
      ** UNRECOGNIZED:  05 24 00 10 01
      ** UNRECOGNIZED:  05 24 01 00 00
      ** UNRECOGNIZED:  04 24 02 02
      ** UNRECOGNIZED:  05 24 06 00 00
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               9
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        4
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol     48
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x86  EP 6 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        5
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0
      bInterfaceProtocol     64
      iInterface              0
      ** UNRECOGNIZED:  05 24 00 10 01
      ** UNRECOGNIZED:  05 24 01 00 00
      ** UNRECOGNIZED:  04 24 02 02
      ** UNRECOGNIZED:  05 24 06 00 00
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x88  EP 8 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               9
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0

T:  Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 85 Spd=5000 MxCh= 0
D:  Ver= 3.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=2cb7 ProdID=01a4 Rev= 5.04
S:  Manufacturer=Fibocom Wireless Inc.
S:  Product=Fibocom FM101-GL Module
S:  SerialNumber=673326ce
C:* #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=896mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=(none)
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=(none)
I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=(none)
I:* If#= 6 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=(none)

Bus 002 Device 085: ID 2cb7:01a4 Fibocom Wireless Inc. Fibocom FM101-GL Module
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.20
  bDeviceClass            0
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0         9
  idVendor           0x2cb7
  idProduct          0x01a4
  bcdDevice            5.04
  iManufacturer           1 Fibocom Wireless Inc.
  iProduct                2 Fibocom FM101-GL Module
  iSerial                 3 673326ce
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0180
    bNumInterfaces          7
    bConfigurationValue     1
    iConfiguration          4 MBIM_DIAG_DUN_ADB_GNSS_GNSS
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              896mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass      14
      bFunctionProtocol       0
      iFunction               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass     14
      bInterfaceProtocol      0
      iInterface              5 Fibocom FM101-GL LTE Modem
      CDC Header:
        bcdCDC               1.10
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
      CDC MBIM:
        bcdMBIMVersion       1.00
        wMaxControlMessage   4096
        bNumberFilters       32
        bMaxFilterSize       128
        wMaxSegmentSize      2048
        bmNetworkCapabilities 0x20
          8-byte ntb input size
      CDC MBIM Extended:
        bcdMBIMExtendedVersion           1.00
        bMaxOutstandingCommandMessages     64
        wMTU                             1500
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               9
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0
      bInterfaceProtocol      2
      iInterface              0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      0
      bInterfaceProtocol      2
      iInterface              6 MBIM Data
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x8e  EP 14 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               6
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x0f  EP 15 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               2
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol     48
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        3
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol     64
      iInterface              0
      ** UNRECOGNIZED:  05 24 00 10 01
      ** UNRECOGNIZED:  05 24 01 00 00
      ** UNRECOGNIZED:  04 24 02 02
      ** UNRECOGNIZED:  05 24 06 00 00
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               9
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        4
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass     66
      bInterfaceProtocol      1
      iInterface              8 ADB Interface
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x03  EP 3 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x85  EP 5 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        5
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0
      bInterfaceProtocol     64
      iInterface              0
      ** UNRECOGNIZED:  05 24 00 10 01
      ** UNRECOGNIZED:  05 24 01 00 00
      ** UNRECOGNIZED:  04 24 02 02
      ** UNRECOGNIZED:  05 24 06 00 00
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x87  EP 7 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               9
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x86  EP 6 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        6
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0
      bInterfaceProtocol     64
      iInterface              0
      ** UNRECOGNIZED:  05 24 00 10 01
      ** UNRECOGNIZED:  05 24 01 00 00
      ** UNRECOGNIZED:  04 24 02 02
      ** UNRECOGNIZED:  05 24 06 00 00
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x89  EP 9 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x000a  1x 10 bytes
        bInterval               9
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x88  EP 8 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0

Signed-off-by: Mingjie Zhang <superzmj@fibocom.com>
Link: https://lore.kernel.org/r/20211123133757.37475-1-superzmj@fibocom.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index b651e546a8104..28ffe4e358b77 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2096,6 +2096,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0xff, 0x30) },	/* Fibocom FG150 Diag */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x010b, 0xff, 0, 0) },		/* Fibocom FG150 AT */
 	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a0, 0xff) },			/* Fibocom NL668-AM/NL652-EU (laptop MBIM) */
+	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a2, 0xff) },			/* Fibocom FM101-GL (laptop MBIM) */
+	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x01a4, 0xff),			/* Fibocom FM101-GL (laptop MBIM) */
+	  .driver_info = RSVD(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(0x2df3, 0x9d03, 0xff) },			/* LongSung M5710 */
 	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1404, 0xff) },			/* GosunCn GM500 RNDIS */
 	{ USB_DEVICE_INTERFACE_CLASS(0x305a, 0x1405, 0xff) },			/* GosunCn GM500 MBIM */
-- 
GitLab


From 4b18ccad9671cc1b645646f8d52cf213ac68a975 Mon Sep 17 00:00:00 2001
From: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Date: Thu, 4 Nov 2021 11:36:01 +0400
Subject: [PATCH 1737/4878] usb: dwc2: gadget: Fix ISOC flow for elapsed frames

commit 7ad4a0b1d46b2612f4429a72afd8f137d7efa9a9 upstream.

Added updating of request frame number for elapsed frames,
otherwise frame number will remain as previous use of request.
This will allow function driver to correctly track frames in
case of Missed ISOC occurs.

Added setting request actual length to 0 for elapsed frames.
In Slave mode when pushing data to RxFIFO by dwords, request
actual length incrementing accordingly. But before whole packet
will be pushed into RxFIFO and send to host can occurs Missed
ISOC and data will not send to host. So, in this case request
actual length should be reset to 0.

Fixes: 91bb163e1e4f ("usb: dwc2: gadget: Fix ISOC flow for BDMA and Slave")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/c356baade6e9716d312d43df08d53ae557cb8037.1636011277.git.Minas.Harutyunyan@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/gadget.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 7207a36c6e26b..449f19c3633c2 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1198,6 +1198,8 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg,
 			}
 			ctrl |= DXEPCTL_CNAK;
 		} else {
+			hs_req->req.frame_number = hs_ep->target_frame;
+			hs_req->req.actual = 0;
 			dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, -ENODATA);
 			return;
 		}
@@ -2856,9 +2858,12 @@ static void dwc2_gadget_handle_ep_disabled(struct dwc2_hsotg_ep *hs_ep)
 
 	do {
 		hs_req = get_ep_head(hs_ep);
-		if (hs_req)
+		if (hs_req) {
+			hs_req->req.frame_number = hs_ep->target_frame;
+			hs_req->req.actual = 0;
 			dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req,
 						    -ENODATA);
+		}
 		dwc2_gadget_incr_frame_num(hs_ep);
 		/* Update current frame number value. */
 		hsotg->frame_number = dwc2_hsotg_read_frameno(hsotg);
@@ -2911,8 +2916,11 @@ static void dwc2_gadget_handle_out_token_ep_disabled(struct dwc2_hsotg_ep *ep)
 
 	while (dwc2_gadget_target_frame_elapsed(ep)) {
 		hs_req = get_ep_head(ep);
-		if (hs_req)
+		if (hs_req) {
+			hs_req->req.frame_number = ep->target_frame;
+			hs_req->req.actual = 0;
 			dwc2_hsotg_complete_request(hsotg, ep, hs_req, -ENODATA);
+		}
 
 		dwc2_gadget_incr_frame_num(ep);
 		/* Update current frame number value. */
@@ -3001,8 +3009,11 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep)
 
 	while (dwc2_gadget_target_frame_elapsed(hs_ep)) {
 		hs_req = get_ep_head(hs_ep);
-		if (hs_req)
+		if (hs_req) {
+			hs_req->req.frame_number = hs_ep->target_frame;
+			hs_req->req.actual = 0;
 			dwc2_hsotg_complete_request(hsotg, hs_ep, hs_req, -ENODATA);
+		}
 
 		dwc2_gadget_incr_frame_num(hs_ep);
 		/* Update current frame number value. */
-- 
GitLab


From 2b7ab82f51736a8550a3b4248054ca8042c57869 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 5 Nov 2021 07:58:03 -0700
Subject: [PATCH 1738/4878] usb: dwc2: hcd_queue: Fix use of floating point
 literal

commit 310780e825f3ffd211b479b8f828885a6faedd63 upstream.

A new commit in LLVM causes an error on the use of 'long double' when
'-mno-x87' is used, which the kernel does through an alias,
'-mno-80387' (see the LLVM commit below for more details around why it
does this).

 drivers/usb/dwc2/hcd_queue.c:1744:25: error: expression requires  'long double' type support, but target 'x86_64-unknown-linux-gnu' does not support it
                         delay = ktime_set(0, DWC2_RETRY_WAIT_DELAY);
                                             ^
 drivers/usb/dwc2/hcd_queue.c:62:34: note: expanded from macro 'DWC2_RETRY_WAIT_DELAY'
 #define DWC2_RETRY_WAIT_DELAY (1 * 1E6L)
                                 ^
 1 error generated.

This happens due to the use of a 'long double' literal. The 'E6' part of
'1E6L' causes the literal to be a 'double' then the 'L' suffix promotes
it to 'long double'.

There is no visible reason for a floating point value in this driver, as
the value is only used as a parameter to a function that expects an
integer type. Use NSEC_PER_MSEC, which is the same integer value as
'1E6L', to avoid changing functionality but fix the error.

Link: https://github.com/ClangBuiltLinux/linux/issues/1497
Link: https://github.com/llvm/llvm-project/commit/a8083d42b1c346e21623a1d36d1f0cadd7801d83
Fixes: 6ed30a7d8ec2 ("usb: dwc2: host: use hrtimer for NAK retries")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: John Keeping <john@metanate.com>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211105145802.2520658-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/hcd_queue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c
index 68bbac64b7536..94af71e9856f2 100644
--- a/drivers/usb/dwc2/hcd_queue.c
+++ b/drivers/usb/dwc2/hcd_queue.c
@@ -59,7 +59,7 @@
 #define DWC2_UNRESERVE_DELAY (msecs_to_jiffies(5))
 
 /* If we get a NAK, wait this long before retrying */
-#define DWC2_RETRY_WAIT_DELAY 1*1E6L
+#define DWC2_RETRY_WAIT_DELAY (1 * NSEC_PER_MSEC)
 
 /**
  * dwc2_periodic_channel_available() - Checks that a channel is available for a
-- 
GitLab


From 3abf746e800b56077fabb3f128afa5929ea94eb9 Mon Sep 17 00:00:00 2001
From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: Mon, 25 Oct 2021 16:21:10 -0700
Subject: [PATCH 1739/4878] usb: dwc3: gadget: Ignore NoStream after End
 Transfer

commit d74dc3e9f58c28689cef1faccf918e06587367d3 upstream.

The End Transfer command from a stream endpoint will generate a NoStream
event, and we should ignore it. Currently we set the flag
DWC3_EP_IGNORE_NEXT_NOSTREAM to track this prior to sending the command,
and it will be cleared on the next stream event. However, a stream event
may be generated before the End Transfer command completion and
prematurely clear the flag. Fix this by setting the flag on End Transfer
completion instead.

Fixes: 140ca4cfea8a ("usb: dwc3: gadget: Handle stream transfers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/cee1253af4c3600edb878d11c9c08b040817ae23.1635203975.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/gadget.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index b75fe568096f9..de25aa2302cee 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -3007,6 +3007,14 @@ static void dwc3_gadget_endpoint_command_complete(struct dwc3_ep *dep,
 	if (cmd != DWC3_DEPCMD_ENDTRANSFER)
 		return;
 
+	/*
+	 * The END_TRANSFER command will cause the controller to generate a
+	 * NoStream Event, and it's not due to the host DP NoStream rejection.
+	 * Ignore the next NoStream event.
+	 */
+	if (dep->stream_capable)
+		dep->flags |= DWC3_EP_IGNORE_NEXT_NOSTREAM;
+
 	dep->flags &= ~DWC3_EP_END_TRANSFER_PENDING;
 	dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
 	dwc3_gadget_ep_cleanup_cancelled_requests(dep);
@@ -3229,14 +3237,6 @@ static void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force,
 	WARN_ON_ONCE(ret);
 	dep->resource_index = 0;
 
-	/*
-	 * The END_TRANSFER command will cause the controller to generate a
-	 * NoStream Event, and it's not due to the host DP NoStream rejection.
-	 * Ignore the next NoStream event.
-	 */
-	if (dep->stream_capable)
-		dep->flags |= DWC3_EP_IGNORE_NEXT_NOSTREAM;
-
 	if (!interrupt)
 		dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
 	else
-- 
GitLab


From 140e2df472ba0014692c6202e6b44cc5e5161f79 Mon Sep 17 00:00:00 2001
From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: Mon, 25 Oct 2021 16:35:06 -0700
Subject: [PATCH 1740/4878] usb: dwc3: gadget: Check for L1/L2/U3 for Start
 Transfer

commit 63c4c320ccf77074ffe9019ac596603133c1b517 upstream.

The programming guide noted that the driver needs to verify if the link
state is in U0 before executing the Start Transfer command. If it's not
in U0, the driver needs to perform remote wakeup. This is not accurate.
If the link state is in U1/U2, then the controller will not respond to
link recovery request from DCTL.ULSTCHNGREQ. The Start Transfer command
will trigger a link recovery if it is in U1/U2. A clarification will be
added to the programming guide for all controller versions.

The current implementation shouldn't cause any functional issue. It may
occasionally report an invalid time out warning from failed link
recovery request. The driver will still go ahead with the Start Transfer
command if the remote wakeup fails. The new change only initiates remote
wakeup where it is needed, which is when the link state is in L1/L2/U3.

Fixes: c36d8e947a56 ("usb: dwc3: gadget: put link to U0 before Start Transfer")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/05b4a5fbfbd0863fc9b1d7af934a366219e3d0b4.1635204761.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/gadget.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index de25aa2302cee..2174519b7cc52 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -310,13 +310,24 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd,
 	if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) {
 		int link_state;
 
+		/*
+		 * Initiate remote wakeup if the link state is in U3 when
+		 * operating in SS/SSP or L1/L2 when operating in HS/FS. If the
+		 * link state is in U1/U2, no remote wakeup is needed. The Start
+		 * Transfer command will initiate the link recovery.
+		 */
 		link_state = dwc3_gadget_get_link_state(dwc);
-		if (link_state == DWC3_LINK_STATE_U1 ||
-		    link_state == DWC3_LINK_STATE_U2 ||
-		    link_state == DWC3_LINK_STATE_U3) {
+		switch (link_state) {
+		case DWC3_LINK_STATE_U2:
+			if (dwc->gadget->speed >= USB_SPEED_SUPER)
+				break;
+
+			fallthrough;
+		case DWC3_LINK_STATE_U3:
 			ret = __dwc3_gadget_wakeup(dwc);
 			dev_WARN_ONCE(dwc->dev, ret, "wakeup failed --> %d\n",
 					ret);
+			break;
 		}
 	}
 
-- 
GitLab


From 0755f3f32277b0860b10a09fcd28b66361b7fd4d Mon Sep 17 00:00:00 2001
From: Albert Wang <albertccwang@google.com>
Date: Tue, 9 Nov 2021 17:26:42 +0800
Subject: [PATCH 1741/4878] usb: dwc3: gadget: Fix null pointer exception

commit 26288448120b28af1dfd85a6fa6b6d55a16c7f2f upstream.

In the endpoint interrupt functions
dwc3_gadget_endpoint_transfer_in_progress() and
dwc3_gadget_endpoint_trbs_complete() will dereference the endpoint
descriptor. But it could be cleared in __dwc3_gadget_ep_disable()
when accessory disconnected. So we need to check whether it is null
or not before dereferencing it.

Fixes: f09ddcfcb8c5 ("usb: dwc3: gadget: Prevent EP queuing while stopping transfers")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Jack Pham <quic_jackp@quicinc.com>
Signed-off-by: Albert Wang <albertccwang@google.com>
Link: https://lore.kernel.org/r/20211109092642.3507692-1-albertccwang@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/gadget.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2174519b7cc52..e9a87e1f49508 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2918,6 +2918,9 @@ static bool dwc3_gadget_endpoint_trbs_complete(struct dwc3_ep *dep,
 	struct dwc3		*dwc = dep->dwc;
 	bool			no_started_trb = true;
 
+	if (!dep->endpoint.desc)
+		return no_started_trb;
+
 	dwc3_gadget_ep_cleanup_completed_requests(dep, event, status);
 
 	if (dep->flags & DWC3_EP_END_TRANSFER_PENDING)
@@ -2965,6 +2968,9 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,
 {
 	int status = 0;
 
+	if (!dep->endpoint.desc)
+		return;
+
 	if (usb_endpoint_xfer_isoc(dep->endpoint.desc))
 		dwc3_gadget_endpoint_frame_from_event(dep, event);
 
-- 
GitLab


From b70ff391deeec35cdd8a05f5f63f5fe28bc4f225 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@nvidia.com>
Date: Tue, 23 Nov 2021 12:27:19 +0200
Subject: [PATCH 1742/4878] net: nexthop: fix null pointer dereference when
 IPv6 is not enabled

commit 1c743127cc54b112b155f434756bd4b5fa565a99 upstream.

When we try to add an IPv6 nexthop and IPv6 is not enabled
(!CONFIG_IPV6) we'll hit a NULL pointer dereference[1] in the error path
of nh_create_ipv6() due to calling ipv6_stub->fib6_nh_release. The bug
has been present since the beginning of IPv6 nexthop gateway support.
Commit 1aefd3de7bc6 ("ipv6: Add fib6_nh_init and release to stubs") tells
us that only fib6_nh_init has a dummy stub because fib6_nh_release should
not be called if fib6_nh_init returns an error, but the commit below added
a call to ipv6_stub->fib6_nh_release in its error path. To fix it return
the dummy stub's -EAFNOSUPPORT error directly without calling
ipv6_stub->fib6_nh_release in nh_create_ipv6()'s error path.

[1]
 Output is a bit truncated, but it clearly shows the error.
 BUG: kernel NULL pointer dereference, address: 000000000000000000
 #PF: supervisor instruction fetch in kernel modede
 #PF: error_code(0x0010) - not-present pagege
 PGD 0 P4D 0
 Oops: 0010 [#1] PREEMPT SMP NOPTI
 CPU: 4 PID: 638 Comm: ip Kdump: loaded Not tainted 5.16.0-rc1+ #446
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014
 RIP: 0010:0x0
 Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
 RSP: 0018:ffff888109f5b8f0 EFLAGS: 00010286^Ac
 RAX: 0000000000000000 RBX: ffff888109f5ba28 RCX: 0000000000000000
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881008a2860
 RBP: ffff888109f5b9d8 R08: 0000000000000000 R09: 0000000000000000
 R10: ffff888109f5b978 R11: ffff888109f5b948 R12: 00000000ffffff9f
 R13: ffff8881008a2a80 R14: ffff8881008a2860 R15: ffff8881008a2840
 FS:  00007f98de70f100(0000) GS:ffff88822bf00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: ffffffffffffffd6 CR3: 0000000100efc000 CR4: 00000000000006e0
 Call Trace:
  <TASK>
  nh_create_ipv6+0xed/0x10c
  rtm_new_nexthop+0x6d7/0x13f3
  ? check_preemption_disabled+0x3d/0xf2
  ? lock_is_held_type+0xbe/0xfd
  rtnetlink_rcv_msg+0x23f/0x26a
  ? check_preemption_disabled+0x3d/0xf2
  ? rtnl_calcit.isra.0+0x147/0x147
  netlink_rcv_skb+0x61/0xb2
  netlink_unicast+0x100/0x187
  netlink_sendmsg+0x37f/0x3a0
  ? netlink_unicast+0x187/0x187
  sock_sendmsg_nosec+0x67/0x9b
  ____sys_sendmsg+0x19d/0x1f9
  ? copy_msghdr_from_user+0x4c/0x5e
  ? rcu_read_lock_any_held+0x2a/0x78
  ___sys_sendmsg+0x6c/0x8c
  ? asm_sysvec_apic_timer_interrupt+0x12/0x20
  ? lockdep_hardirqs_on+0xd9/0x102
  ? sockfd_lookup_light+0x69/0x99
  __sys_sendmsg+0x50/0x6e
  do_syscall_64+0xcb/0xf2
  entry_SYSCALL_64_after_hwframe+0x44/0xae
 RIP: 0033:0x7f98dea28914
 Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 80 00 00 00 00 48 8d 05 e9 5d 0c 00 8b 00 85 c0 75 13 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 41 54 41 89 d4 55 48 89 f5 53
 RSP: 002b:00007fff859f5e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e2e
 RAX: ffffffffffffffda RBX: 00000000619cb810 RCX: 00007f98dea28914
 RDX: 0000000000000000 RSI: 00007fff859f5ed0 RDI: 0000000000000003
 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000008
 R10: fffffffffffffce6 R11: 0000000000000246 R12: 0000000000000001
 R13: 000055c0097ae520 R14: 000055c0097957fd R15: 00007fff859f63a0
 </TASK>
 Modules linked in: bridge stp llc bonding virtio_net

Cc: stable@vger.kernel.org
Fixes: 53010f991a9f ("nexthop: Add support for IPv6 gateways")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/nexthop.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index 1075cc2136ac6..4dbc628f8c386 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -1355,11 +1355,15 @@ static int nh_create_ipv6(struct net *net,  struct nexthop *nh,
 	/* sets nh_dev if successful */
 	err = ipv6_stub->fib6_nh_init(net, fib6_nh, &fib6_cfg, GFP_KERNEL,
 				      extack);
-	if (err)
+	if (err) {
+		/* IPv6 is not enabled, don't call fib6_nh_release */
+		if (err == -EAFNOSUPPORT)
+			goto out;
 		ipv6_stub->fib6_nh_release(fib6_nh);
-	else
+	} else {
 		nh->nh_flags = fib6_nh->fib_nh_flags;
-
+	}
+out:
 	return err;
 }
 
-- 
GitLab


From 56fbab4937e04c8d51a592dc78c2e17658af7f22 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 17 Nov 2021 10:49:23 +0300
Subject: [PATCH 1743/4878] usb: chipidea: ci_hdrc_imx: fix potential error
 pointer dereference in probe

commit d4d2e5329ae9dfd6742c84d79f7d143d10410f1b upstream.

If the first call to devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0)
fails with something other than -ENODEV then it leads to an error
pointer dereference.  For those errors we should just jump directly to
the error handling.

Fixes: 8253a34bfae3 ("usb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211117074923.GF5237@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index b4c6527fe5f66..f798455942844 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -425,15 +425,15 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 	data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0);
 	if (IS_ERR(data->phy)) {
 		ret = PTR_ERR(data->phy);
-		if (ret == -ENODEV) {
-			data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0);
-			if (IS_ERR(data->phy)) {
-				ret = PTR_ERR(data->phy);
-				if (ret == -ENODEV)
-					data->phy = NULL;
-				else
-					goto err_clk;
-			}
+		if (ret != -ENODEV)
+			goto err_clk;
+		data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0);
+		if (IS_ERR(data->phy)) {
+			ret = PTR_ERR(data->phy);
+			if (ret == -ENODEV)
+				data->phy = NULL;
+			else
+				goto err_clk;
 		}
 	}
 
-- 
GitLab


From 00f1038c72f86d01e2c685b5d20b9e22eab72ecb Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megous@megous.com>
Date: Mon, 8 Nov 2021 11:28:32 +0100
Subject: [PATCH 1744/4878] usb: typec: fusb302: Fix masking of comparator and
 bc_lvl interrupts

commit 362468830dd5bea8bf6ad5203b2ea61f8a4e8288 upstream.

The code that enables either BC_LVL or COMP_CHNG interrupt in tcpm_set_cc
wrongly assumes that the interrupt is unmasked by writing 1 to the apropriate
bit in the mask register. In fact, interrupts are enabled when the mask
is 0, so the tcpm_set_cc enables interrupt for COMP_CHNG when it expects
BC_LVL interrupt to be enabled.

This causes inability of the driver to recognize cable unplug events
in host mode (unplug is recognized only via a COMP_CHNG interrupt).

In device mode this bug was masked by simultaneous triggering of the VBUS
change interrupt, because of loss of VBUS when the port peer is providing
power.

Fixes: 48242e30532b ("usb: typec: fusb302: Revert "Resolve fixed power role contract setup"")
Cc: stable <stable@vger.kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Ondrej Jirman <megous@megous.com>
Link: https://lore.kernel.org/r/20211108102833.2793803-1-megous@megous.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/typec/tcpm/fusb302.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index 99562cc65ca69..700e38e921523 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -669,25 +669,27 @@ static int tcpm_set_cc(struct tcpc_dev *dev, enum typec_cc_status cc)
 		ret = fusb302_i2c_mask_write(chip, FUSB_REG_MASK,
 					     FUSB_REG_MASK_BC_LVL |
 					     FUSB_REG_MASK_COMP_CHNG,
-					     FUSB_REG_MASK_COMP_CHNG);
+					     FUSB_REG_MASK_BC_LVL);
 		if (ret < 0) {
 			fusb302_log(chip, "cannot set SRC interrupt, ret=%d",
 				    ret);
 			goto done;
 		}
 		chip->intr_comp_chng = true;
+		chip->intr_bc_lvl = false;
 		break;
 	case TYPEC_CC_RD:
 		ret = fusb302_i2c_mask_write(chip, FUSB_REG_MASK,
 					     FUSB_REG_MASK_BC_LVL |
 					     FUSB_REG_MASK_COMP_CHNG,
-					     FUSB_REG_MASK_BC_LVL);
+					     FUSB_REG_MASK_COMP_CHNG);
 		if (ret < 0) {
 			fusb302_log(chip, "cannot set SRC interrupt, ret=%d",
 				    ret);
 			goto done;
 		}
 		chip->intr_bc_lvl = true;
+		chip->intr_comp_chng = false;
 		break;
 	default:
 		break;
-- 
GitLab


From 5bf3a0c7789e6fb4b1d9733a8cb62f407abf3c25 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Tue, 16 Nov 2021 00:16:30 +0200
Subject: [PATCH 1745/4878] usb: hub: Fix usb enumeration issue due to address0
 race

commit 6ae6dc22d2d1ce6aa77a6da8a761e61aca216f8b upstream.

xHC hardware can only have one slot in default state with address 0
waiting for a unique address at a time, otherwise "undefined behavior
may occur" according to xhci spec 5.4.3.4

The address0_mutex exists to prevent this across both xhci roothubs.

If hub_port_init() fails, it may unlock the mutex and exit with a xhci
slot in default state. If the other xhci roothub calls hub_port_init()
at this point we end up with two slots in default state.

Make sure the address0_mutex protects the slot default state across
hub_port_init() retries, until slot is addressed or disabled.

Note, one known minor case is not fixed by this patch.
If device needs to be reset during resume, but fails all hub_port_init()
retries in usb_reset_and_verify_device(), then it's possible the slot is
still left in default state when address0_mutex is unlocked.

Cc: <stable@vger.kernel.org>
Fixes: 638139eb95d2 ("usb: hub: allow to process more usb hub events in parallel")
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211115221630.871204-1-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 95a9bae72f135..dfe96bfec0882 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4628,8 +4628,6 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
 	if (oldspeed == USB_SPEED_LOW)
 		delay = HUB_LONG_RESET_TIME;
 
-	mutex_lock(hcd->address0_mutex);
-
 	/* Reset the device; full speed may morph to high speed */
 	/* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */
 	retval = hub_port_reset(hub, port1, udev, delay, false);
@@ -4940,7 +4938,6 @@ fail:
 		hub_port_disable(hub, port1, 0);
 		update_devnum(udev, devnum);	/* for disconnect processing */
 	}
-	mutex_unlock(hcd->address0_mutex);
 	return retval;
 }
 
@@ -5170,6 +5167,9 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		unit_load = 100;
 
 	status = 0;
+
+	mutex_lock(hcd->address0_mutex);
+
 	for (i = 0; i < PORT_INIT_TRIES; i++) {
 
 		/* reallocate for each attempt, since references
@@ -5206,6 +5206,8 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		if (status < 0)
 			goto loop;
 
+		mutex_unlock(hcd->address0_mutex);
+
 		if (udev->quirks & USB_QUIRK_DELAY_INIT)
 			msleep(2000);
 
@@ -5294,6 +5296,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 
 loop_disable:
 		hub_port_disable(hub, port1, 1);
+		mutex_lock(hcd->address0_mutex);
 loop:
 		usb_ep0_reinit(udev);
 		release_devnum(udev);
@@ -5320,6 +5323,8 @@ loop:
 	}
 
 done:
+	mutex_unlock(hcd->address0_mutex);
+
 	hub_port_disable(hub, port1, 1);
 	if (hcd->driver->relinquish_port && !hub->hdev->parent) {
 		if (status != -ENOTCONN && status != -ENODEV)
@@ -5839,6 +5844,8 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	bos = udev->bos;
 	udev->bos = NULL;
 
+	mutex_lock(hcd->address0_mutex);
+
 	for (i = 0; i < PORT_INIT_TRIES; ++i) {
 
 		/* ep0 maxpacket size may change; let the HCD know about it.
@@ -5848,6 +5855,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 		if (ret >= 0 || ret == -ENOTCONN || ret == -ENODEV)
 			break;
 	}
+	mutex_unlock(hcd->address0_mutex);
 
 	if (ret < 0)
 		goto re_enumerate;
-- 
GitLab


From aea184ae6408c1783f74483bb47184e2b249e84d Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Tue, 23 Nov 2021 12:16:56 +0200
Subject: [PATCH 1746/4878] usb: hub: Fix locking issues with address0_mutex

commit 6cca13de26eea6d32a98d96d916a048d16a12822 upstream.

Fix the circular lock dependency and unbalanced unlock of addess0_mutex
introduced when fixing an address0_mutex enumeration retry race in commit
ae6dc22d2d1 ("usb: hub: Fix usb enumeration issue due to address0 race")

Make sure locking order between port_dev->status_lock and address0_mutex
is correct, and that address0_mutex is not unlocked in hub_port_connect
"done:" codepath which may be reached without locking address0_mutex

Fixes: 6ae6dc22d2d1 ("usb: hub: Fix usb enumeration issue due to address0 race")
Cc: <stable@vger.kernel.org>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211123101656.1113518-1-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index dfe96bfec0882..3f406519da58d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5112,6 +5112,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 	struct usb_port *port_dev = hub->ports[port1 - 1];
 	struct usb_device *udev = port_dev->child;
 	static int unreliable_port = -1;
+	bool retry_locked;
 
 	/* Disconnect any existing devices under this port */
 	if (udev) {
@@ -5168,10 +5169,10 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 
 	status = 0;
 
-	mutex_lock(hcd->address0_mutex);
-
 	for (i = 0; i < PORT_INIT_TRIES; i++) {
-
+		usb_lock_port(port_dev);
+		mutex_lock(hcd->address0_mutex);
+		retry_locked = true;
 		/* reallocate for each attempt, since references
 		 * to the previous one can escape in various ways
 		 */
@@ -5179,6 +5180,8 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		if (!udev) {
 			dev_err(&port_dev->dev,
 					"couldn't allocate usb_device\n");
+			mutex_unlock(hcd->address0_mutex);
+			usb_unlock_port(port_dev);
 			goto done;
 		}
 
@@ -5200,13 +5203,13 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		}
 
 		/* reset (non-USB 3.0 devices) and get descriptor */
-		usb_lock_port(port_dev);
 		status = hub_port_init(hub, udev, port1, i);
-		usb_unlock_port(port_dev);
 		if (status < 0)
 			goto loop;
 
 		mutex_unlock(hcd->address0_mutex);
+		usb_unlock_port(port_dev);
+		retry_locked = false;
 
 		if (udev->quirks & USB_QUIRK_DELAY_INIT)
 			msleep(2000);
@@ -5296,11 +5299,14 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 
 loop_disable:
 		hub_port_disable(hub, port1, 1);
-		mutex_lock(hcd->address0_mutex);
 loop:
 		usb_ep0_reinit(udev);
 		release_devnum(udev);
 		hub_free_dev(udev);
+		if (retry_locked) {
+			mutex_unlock(hcd->address0_mutex);
+			usb_unlock_port(port_dev);
+		}
 		usb_put_dev(udev);
 		if ((status == -ENOTCONN) || (status == -ENOTSUPP))
 			break;
@@ -5323,8 +5329,6 @@ loop:
 	}
 
 done:
-	mutex_unlock(hcd->address0_mutex);
-
 	hub_port_disable(hub, port1, 1);
 	if (hcd->driver->relinquish_port && !hub->hdev->parent) {
 		if (status != -ENOTCONN && status != -ENODEV)
-- 
GitLab


From 4402cf0402526f7c5befa97481be13b131797838 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Fri, 12 Nov 2021 10:07:20 -0800
Subject: [PATCH 1747/4878] binder: fix test regression due to sender_euid
 change

commit c21a80ca0684ec2910344d72556c816cb8940c01 upstream.

This is a partial revert of commit
29bc22ac5e5b ("binder: use euid from cred instead of using task").
Setting sender_euid using proc->cred caused some Android system test
regressions that need further investigation. It is a partial
reversion because subsequent patches rely on proc->cred.

Fixes: 29bc22ac5e5b ("binder: use euid from cred instead of using task")
Cc: stable@vger.kernel.org # 4.4+
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I9b1769a3510fed250bb21859ef8beebabe034c66
Link: https://lore.kernel.org/r/20211112180720.2858135-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 8f14ad7ab5bd8..a1255971e50ce 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -3091,7 +3091,7 @@ static void binder_transaction(struct binder_proc *proc,
 		t->from = thread;
 	else
 		t->from = NULL;
-	t->sender_euid = proc->cred->euid;
+	t->sender_euid = task_euid(proc->tsk);
 	t->to_proc = target_proc;
 	t->to_thread = target_thread;
 	t->code = tr->code;
-- 
GitLab


From 172167bc8dac6aced27959a6912b18c4aef0cc7b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 18 Nov 2021 22:57:29 +0100
Subject: [PATCH 1748/4878] ALSA: ctxfi: Fix out-of-range access

commit 76c47183224c86e4011048b80f0e2d0d166f01c2 upstream.

The master and next_conj of rcs_ops are used for iterating the
resource list entries, and currently those are supposed to return the
current value.  The problem is that next_conf may go over the last
entry before the loop abort condition is evaluated, and it may return
the "current" value that is beyond the array size.  It was caught
recently as a GPF, for example.

Those return values are, however, never actually evaluated, hence
basically we don't have to consider the current value as the return at
all.  By dropping those return values, the potential out-of-range
access above is also fixed automatically.

This patch changes the return type of master and next_conj callbacks
to void and drop the superfluous code accordingly.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214985
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211118215729.26257-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/ctxfi/ctamixer.c   | 14 ++++++--------
 sound/pci/ctxfi/ctdaio.c     | 16 ++++++++--------
 sound/pci/ctxfi/ctresource.c |  7 +++----
 sound/pci/ctxfi/ctresource.h |  4 ++--
 sound/pci/ctxfi/ctsrc.c      |  7 +++----
 5 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/sound/pci/ctxfi/ctamixer.c b/sound/pci/ctxfi/ctamixer.c
index d4ff377eb3a34..6d636bdcaa5a3 100644
--- a/sound/pci/ctxfi/ctamixer.c
+++ b/sound/pci/ctxfi/ctamixer.c
@@ -23,16 +23,15 @@
 
 #define BLANK_SLOT		4094
 
-static int amixer_master(struct rsc *rsc)
+static void amixer_master(struct rsc *rsc)
 {
 	rsc->conj = 0;
-	return rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
+	rsc->idx = container_of(rsc, struct amixer, rsc)->idx[0];
 }
 
-static int amixer_next_conj(struct rsc *rsc)
+static void amixer_next_conj(struct rsc *rsc)
 {
 	rsc->conj++;
-	return container_of(rsc, struct amixer, rsc)->idx[rsc->conj];
 }
 
 static int amixer_index(const struct rsc *rsc)
@@ -331,16 +330,15 @@ int amixer_mgr_destroy(struct amixer_mgr *amixer_mgr)
 
 /* SUM resource management */
 
-static int sum_master(struct rsc *rsc)
+static void sum_master(struct rsc *rsc)
 {
 	rsc->conj = 0;
-	return rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
+	rsc->idx = container_of(rsc, struct sum, rsc)->idx[0];
 }
 
-static int sum_next_conj(struct rsc *rsc)
+static void sum_next_conj(struct rsc *rsc)
 {
 	rsc->conj++;
-	return container_of(rsc, struct sum, rsc)->idx[rsc->conj];
 }
 
 static int sum_index(const struct rsc *rsc)
diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
index 4cb47b5a792c5..aae544dff8868 100644
--- a/sound/pci/ctxfi/ctdaio.c
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -51,12 +51,12 @@ static const struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
 	[SPDIFIO] = {.left = 0x05, .right = 0x85},
 };
 
-static int daio_master(struct rsc *rsc)
+static void daio_master(struct rsc *rsc)
 {
 	/* Actually, this is not the resource index of DAIO.
 	 * For DAO, it is the input mapper index. And, for DAI,
 	 * it is the output time-slot index. */
-	return rsc->conj = rsc->idx;
+	rsc->conj = rsc->idx;
 }
 
 static int daio_index(const struct rsc *rsc)
@@ -64,19 +64,19 @@ static int daio_index(const struct rsc *rsc)
 	return rsc->conj;
 }
 
-static int daio_out_next_conj(struct rsc *rsc)
+static void daio_out_next_conj(struct rsc *rsc)
 {
-	return rsc->conj += 2;
+	rsc->conj += 2;
 }
 
-static int daio_in_next_conj_20k1(struct rsc *rsc)
+static void daio_in_next_conj_20k1(struct rsc *rsc)
 {
-	return rsc->conj += 0x200;
+	rsc->conj += 0x200;
 }
 
-static int daio_in_next_conj_20k2(struct rsc *rsc)
+static void daio_in_next_conj_20k2(struct rsc *rsc)
 {
-	return rsc->conj += 0x100;
+	rsc->conj += 0x100;
 }
 
 static const struct rsc_ops daio_out_rsc_ops = {
diff --git a/sound/pci/ctxfi/ctresource.c b/sound/pci/ctxfi/ctresource.c
index 61e51e35ba168..edf9d9ef9b848 100644
--- a/sound/pci/ctxfi/ctresource.c
+++ b/sound/pci/ctxfi/ctresource.c
@@ -109,18 +109,17 @@ static int audio_ring_slot(const struct rsc *rsc)
     return (rsc->conj << 4) + offset_in_audio_slot_block[rsc->type];
 }
 
-static int rsc_next_conj(struct rsc *rsc)
+static void rsc_next_conj(struct rsc *rsc)
 {
 	unsigned int i;
 	for (i = 0; (i < 8) && (!(rsc->msr & (0x1 << i))); )
 		i++;
 	rsc->conj += (AUDIO_SLOT_BLOCK_NUM >> i);
-	return rsc->conj;
 }
 
-static int rsc_master(struct rsc *rsc)
+static void rsc_master(struct rsc *rsc)
 {
-	return rsc->conj = rsc->idx;
+	rsc->conj = rsc->idx;
 }
 
 static const struct rsc_ops rsc_generic_ops = {
diff --git a/sound/pci/ctxfi/ctresource.h b/sound/pci/ctxfi/ctresource.h
index 93e47488a1c1c..92146054af582 100644
--- a/sound/pci/ctxfi/ctresource.h
+++ b/sound/pci/ctxfi/ctresource.h
@@ -39,8 +39,8 @@ struct rsc {
 };
 
 struct rsc_ops {
-	int (*master)(struct rsc *rsc);	/* Move to master resource */
-	int (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
+	void (*master)(struct rsc *rsc); /* Move to master resource */
+	void (*next_conj)(struct rsc *rsc); /* Move to next conjugate resource */
 	int (*index)(const struct rsc *rsc); /* Return the index of resource */
 	/* Return the output slot number */
 	int (*output_slot)(const struct rsc *rsc);
diff --git a/sound/pci/ctxfi/ctsrc.c b/sound/pci/ctxfi/ctsrc.c
index 37c18ce84974a..7d2bda0c3d3de 100644
--- a/sound/pci/ctxfi/ctsrc.c
+++ b/sound/pci/ctxfi/ctsrc.c
@@ -590,16 +590,15 @@ int src_mgr_destroy(struct src_mgr *src_mgr)
 
 /* SRCIMP resource manager operations */
 
-static int srcimp_master(struct rsc *rsc)
+static void srcimp_master(struct rsc *rsc)
 {
 	rsc->conj = 0;
-	return rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
+	rsc->idx = container_of(rsc, struct srcimp, rsc)->idx[0];
 }
 
-static int srcimp_next_conj(struct rsc *rsc)
+static void srcimp_next_conj(struct rsc *rsc)
 {
 	rsc->conj++;
-	return container_of(rsc, struct srcimp, rsc)->idx[rsc->conj];
 }
 
 static int srcimp_index(const struct rsc *rsc)
-- 
GitLab


From 60274e248e3d87d1a701b5fdc6856f6e6fb27a2b Mon Sep 17 00:00:00 2001
From: Werner Sembach <wse@tuxedocomputers.com>
Date: Fri, 12 Nov 2021 12:07:04 +0100
Subject: [PATCH 1749/4878] ALSA: hda/realtek: Add quirk for ASRock NUC Box
 1100

commit 174a7fb3859ae75b0f0e35ef852459d8882b55b5 upstream.

This applies a SND_PCI_QUIRK(...) to the ASRock NUC Box 1100 series. This
fixes the issue of the headphone jack not being detected unless warm
rebooted from a certain other OS.

When booting a certain other OS some coeff settings are changed that enable
the audio jack. These settings are preserved on a warm reboot and can be
easily dumped.

The relevant indexes and values where gathered by naively diff-ing and
reading a working and a non-working coeff dump.

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211112110704.1022501-1-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2eb06351de1fb..51741960c9b91 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6467,6 +6467,27 @@ static void alc256_fixup_tongfang_reset_persistent_settings(struct hda_codec *co
 	alc_write_coef_idx(codec, 0x45, 0x5089);
 }
 
+static const struct coef_fw alc233_fixup_no_audio_jack_coefs[] = {
+	WRITE_COEF(0x1a, 0x9003), WRITE_COEF(0x1b, 0x0e2b), WRITE_COEF(0x37, 0xfe06),
+	WRITE_COEF(0x38, 0x4981), WRITE_COEF(0x45, 0xd489), WRITE_COEF(0x46, 0x0074),
+	WRITE_COEF(0x49, 0x0149),
+	{}
+};
+
+static void alc233_fixup_no_audio_jack(struct hda_codec *codec,
+				       const struct hda_fixup *fix,
+				       int action)
+{
+	/*
+	 * The audio jack input and output is not detected on the ASRock NUC Box
+	 * 1100 series when cold booting without this fix. Warm rebooting from a
+	 * certain other OS makes the audio functional, as COEF settings are
+	 * preserved in this case. This fix sets these altered COEF values as
+	 * the default.
+	 */
+	alc_process_coef_fw(codec, alc233_fixup_no_audio_jack_coefs);
+}
+
 enum {
 	ALC269_FIXUP_GPIO2,
 	ALC269_FIXUP_SONY_VAIO,
@@ -6685,6 +6706,7 @@ enum {
 	ALC287_FIXUP_13S_GEN2_SPEAKERS,
 	ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS,
 	ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
+	ALC233_FIXUP_NO_AUDIO_JACK,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8399,6 +8421,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC,
 	},
+	[ALC233_FIXUP_NO_AUDIO_JACK] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc233_fixup_no_audio_jack,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -8831,6 +8857,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x511e, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x511f, "Thinkpad", ALC298_FIXUP_TPT470_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB", ALC269_FIXUP_LENOVO_EAPD),
+	SND_PCI_QUIRK(0x1849, 0x1233, "ASRock NUC Box 1100", ALC233_FIXUP_NO_AUDIO_JACK),
 	SND_PCI_QUIRK(0x19e5, 0x3204, "Huawei MACH-WX9", ALC256_FIXUP_HUAWEI_MACH_WX9_PINS),
 	SND_PCI_QUIRK(0x1b35, 0x1235, "CZC B20", ALC269_FIXUP_CZC_B20),
 	SND_PCI_QUIRK(0x1b35, 0x1236, "CZC TMI", ALC269_FIXUP_CZC_TMI),
-- 
GitLab


From 3798218a1af4ffb9ff10a3d86fa307dcf9dfb309 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 18 Nov 2021 08:16:36 +0100
Subject: [PATCH 1750/4878] ALSA: hda/realtek: Fix LED on HP ProBook 435 G7

commit 05ec7161084565365ecf267e9909a897a95f243a upstream.

HP ProBook 435 G7 (SSID 103c:8735) needs the similar quirk as another
HP ProBook for enabling the mute and the mic-mute LEDs.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215021
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211118071636.14738-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 51741960c9b91..b980fa617229e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8604,6 +8604,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8728, "HP EliteBook 840 G7", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8729, "HP", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8730, "HP ProBook 445 G7", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
+	SND_PCI_QUIRK(0x103c, 0x8735, "HP ProBook 435 G7", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
 	SND_PCI_QUIRK(0x103c, 0x8736, "HP", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x8760, "HP", ALC285_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x877a, "HP", ALC285_FIXUP_HP_MUTE_LED),
-- 
GitLab


From 3a4aeb37a7a61740aa50d763697ebb88280cc37b Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Tue, 2 Nov 2021 12:24:26 +0000
Subject: [PATCH 1751/4878] media: cec: copy sequence field for the reply

commit 13cbaa4c2b7bf9f8285e1164d005dbf08244ecd5 upstream.

When the reply for a non-blocking transmit arrives, the sequence
field for that reply was never filled in, so userspace would have no
way of associating the reply to the original transmit.

Copy the sequence field to ensure that this is now possible.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 0dbacebede1e ([media] cec: move the CEC framework out of staging and to media)
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/cec/core/cec-adap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/cec/core/cec-adap.c b/drivers/media/cec/core/cec-adap.c
index d5d5d28d0b36a..2e5698fbc3a87 100644
--- a/drivers/media/cec/core/cec-adap.c
+++ b/drivers/media/cec/core/cec-adap.c
@@ -1199,6 +1199,7 @@ void cec_received_msg_ts(struct cec_adapter *adap,
 			if (abort)
 				dst->rx_status |= CEC_RX_STATUS_FEATURE_ABORT;
 			msg->flags = dst->flags;
+			msg->sequence = dst->sequence;
 			/* Remove it from the wait_queue */
 			list_del_init(&data->list);
 
-- 
GitLab


From 6ca32e2e776e6bd55a1d64b3bb32963832639193 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 21 Nov 2021 11:10:55 +0100
Subject: [PATCH 1752/4878] Revert "parisc: Fix backtrace to always include
 init funtion names"

commit 98400ad75e95860e9a10ec78b0b90ab66184a2ce upstream.

This reverts commit 279917e27edc293eb645a25428c6ab3f3bca3f86.

With the CONFIG_HARDENED_USERCOPY option enabled, this patch triggers
kernel bugs at runtime:

  usercopy: Kernel memory overwrite attempt detected to kernel text (offset 2084839, size 6)!
  kernel BUG at mm/usercopy.c:99!
 Backtrace:
  IAOQ[0]: usercopy_abort+0xc4/0xe8
  [<00000000406ed1c8>] __check_object_size+0x174/0x238
  [<00000000407086d4>] copy_strings.isra.0+0x3e8/0x708
  [<0000000040709a20>] do_execveat_common.isra.0+0x1bc/0x328
  [<000000004070b760>] compat_sys_execve+0x7c/0xb8
  [<0000000040303eb8>] syscall_exit+0x0/0x14

The problem is, that we have an init section of at least 2MB size which
starts at _stext and is freed after bootup.

If then later some kernel data is (temporarily) stored in this free
memory, check_kernel_text_object() will trigger a bug since the data
appears to be inside the kernel text (>=_stext) area:
        if (overlaps(ptr, len, _stext, _etext))
                usercopy_abort("kernel text");

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@kernel.org # 5.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/vmlinux.lds.S | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 3d208afd15bc6..2769eb991f58d 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -57,8 +57,6 @@ SECTIONS
 {
 	. = KERNEL_BINARY_TEXT_START;
 
-	_stext = .;	/* start of kernel text, includes init code & data */
-
 	__init_begin = .;
 	HEAD_TEXT_SECTION
 	MLONGCALL_DISCARD(INIT_TEXT_SECTION(8))
@@ -82,6 +80,7 @@ SECTIONS
 	/* freed after init ends here */
 
 	_text = .;		/* Text and read-only data */
+	_stext = .;
 	MLONGCALL_KEEP(INIT_TEXT_SECTION(8))
 	.text ALIGN(PAGE_SIZE) : {
 		TEXT_TEXT
-- 
GitLab


From 8fc5e3c7caccaf932dedee7fef8885a9673c65cd Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Mon, 8 Nov 2021 16:31:01 -0800
Subject: [PATCH 1753/4878] HID: wacom: Use "Confidence" flag to prevent
 reporting invalid contacts

commit 7fb0413baa7f8a04caef0c504df9af7e0623d296 upstream.

The HID descriptor of many of Wacom's touch input devices include a
"Confidence" usage that signals if a particular touch collection contains
useful data. The driver does not look at this flag, however, which causes
even invalid contacts to be reported to userspace. A lucky combination of
kernel event filtering and device behavior (specifically: contact ID 0 ==
invalid, contact ID >0 == valid; and order all data so that all valid
contacts are reported before any invalid contacts) spare most devices from
any visibly-bad behavior.

The DTH-2452 is one example of an unlucky device that misbehaves. It uses
ID 0 for both the first valid contact and all invalid contacts. Because
we report both the valid and invalid contacts, the kernel reports that
contact 0 first goes down (valid) and then goes up (invalid) in every
report. This causes ~100 clicks per second simply by touching the screen.

This patch inroduces new `confidence` flag in our `hid_data` structure.
The value is initially set to `true` at the start of a report and can be
set to `false` if an invalid touch usage is seen.

Link: https://github.com/linuxwacom/input-wacom/issues/270
Fixes: f8b6a74719b5 ("HID: wacom: generic: Support multiple tools per report")
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Tested-by: Joshua Dickens <joshua.dickens@wacom.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/wacom_wac.c | 8 +++++++-
 drivers/hid/wacom_wac.h | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index b2719cf37aa52..c25274275258f 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2578,6 +2578,9 @@ static void wacom_wac_finger_event(struct hid_device *hdev,
 		return;
 
 	switch (equivalent_usage) {
+	case HID_DG_CONFIDENCE:
+		wacom_wac->hid_data.confidence = value;
+		break;
 	case HID_GD_X:
 		wacom_wac->hid_data.x = value;
 		break;
@@ -2610,7 +2613,8 @@ static void wacom_wac_finger_event(struct hid_device *hdev,
 	}
 
 	if (usage->usage_index + 1 == field->report_count) {
-		if (equivalent_usage == wacom_wac->hid_data.last_slot_field)
+		if (equivalent_usage == wacom_wac->hid_data.last_slot_field &&
+		    wacom_wac->hid_data.confidence)
 			wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
 	}
 }
@@ -2625,6 +2629,8 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
 
 	wacom_wac->is_invalid_bt_frame = false;
 
+	hid_data->confidence = true;
+
 	for (i = 0; i < report->maxfield; i++) {
 		struct hid_field *field = report->field[i];
 		int j;
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index e3835407e8d23..8dea7cb298e69 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -300,6 +300,7 @@ struct hid_data {
 	bool tipswitch;
 	bool barrelswitch;
 	bool barrelswitch2;
+	bool confidence;
 	int x;
 	int y;
 	int pressure;
-- 
GitLab


From 146283f16b7e857d688b72f42e46d9567bef6e96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Fri, 5 Nov 2021 21:43:58 +0100
Subject: [PATCH 1754/4878] staging/fbtft: Fix backlight
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 7865dd24934ad580d1bcde8f63c39f324211a23b upstream.

Commit b4a1ed0cd18b ("fbdev: make FB_BACKLIGHT a tristate") forgot to
update fbtft breaking its backlight support when FB_BACKLIGHT is a module.

Since FB_TFT selects FB_BACKLIGHT there's no need for this conditional
so just remove it and we're good.

Fixes: b4a1ed0cd18b ("fbdev: make FB_BACKLIGHT a tristate")
Cc: <stable@vger.kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://lore.kernel.org/r/20211105204358.2991-1-noralf@tronnes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/fbtft/fb_ssd1351.c | 4 ----
 drivers/staging/fbtft/fbtft-core.c | 9 +--------
 2 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c
index cf263a58a1489..6fd549a424d53 100644
--- a/drivers/staging/fbtft/fb_ssd1351.c
+++ b/drivers/staging/fbtft/fb_ssd1351.c
@@ -187,7 +187,6 @@ static struct fbtft_display display = {
 	},
 };
 
-#ifdef CONFIG_FB_BACKLIGHT
 static int update_onboard_backlight(struct backlight_device *bd)
 {
 	struct fbtft_par *par = bl_get_data(bd);
@@ -231,9 +230,6 @@ static void register_onboard_backlight(struct fbtft_par *par)
 	if (!par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight = fbtft_unregister_backlight;
 }
-#else
-static void register_onboard_backlight(struct fbtft_par *par) { };
-#endif
 
 FBTFT_REGISTER_DRIVER(DRVNAME, "solomon,ssd1351", &display);
 
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index 3723269890d5f..d0c8d85f3db0f 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -128,7 +128,6 @@ static int fbtft_request_gpios(struct fbtft_par *par)
 	return 0;
 }
 
-#ifdef CONFIG_FB_BACKLIGHT
 static int fbtft_backlight_update_status(struct backlight_device *bd)
 {
 	struct fbtft_par *par = bl_get_data(bd);
@@ -161,6 +160,7 @@ void fbtft_unregister_backlight(struct fbtft_par *par)
 		par->info->bl_dev = NULL;
 	}
 }
+EXPORT_SYMBOL(fbtft_unregister_backlight);
 
 static const struct backlight_ops fbtft_bl_ops = {
 	.get_brightness	= fbtft_backlight_get_brightness,
@@ -198,12 +198,7 @@ void fbtft_register_backlight(struct fbtft_par *par)
 	if (!par->fbtftops.unregister_backlight)
 		par->fbtftops.unregister_backlight = fbtft_unregister_backlight;
 }
-#else
-void fbtft_register_backlight(struct fbtft_par *par) { };
-void fbtft_unregister_backlight(struct fbtft_par *par) { };
-#endif
 EXPORT_SYMBOL(fbtft_register_backlight);
-EXPORT_SYMBOL(fbtft_unregister_backlight);
 
 static void fbtft_set_addr_win(struct fbtft_par *par, int xs, int ys, int xe,
 			       int ye)
@@ -853,13 +848,11 @@ int fbtft_register_framebuffer(struct fb_info *fb_info)
 		 fb_info->fix.smem_len >> 10, text1,
 		 HZ / fb_info->fbdefio->delay, text2);
 
-#ifdef CONFIG_FB_BACKLIGHT
 	/* Turn on backlight if available */
 	if (fb_info->bl_dev) {
 		fb_info->bl_dev->props.power = FB_BLANK_UNBLANK;
 		fb_info->bl_dev->ops->update_status(fb_info->bl_dev);
 	}
-#endif
 
 	return 0;
 
-- 
GitLab


From 0bfed81b2ccd31f8c0ffdf582f27e2fd3a5e8066 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 16 Nov 2021 08:20:27 +0100
Subject: [PATCH 1755/4878] staging: greybus: Add missing rwsem around
 snd_ctl_remove() calls

commit ffcf7ae90f4489047d7b076539ba207024dea5f6 upstream.

snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation).  This patch adds the missing
rwsem calls around it.

Fixes: 510e340efe0c ("staging: greybus: audio: Add helper APIs for dynamic audio modules")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211116072027.18466-1-tiwai@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/greybus/audio_helper.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/greybus/audio_helper.c b/drivers/staging/greybus/audio_helper.c
index 3011b8abce389..a9576f92efaa4 100644
--- a/drivers/staging/greybus/audio_helper.c
+++ b/drivers/staging/greybus/audio_helper.c
@@ -192,7 +192,11 @@ int gbaudio_remove_component_controls(struct snd_soc_component *component,
 				      unsigned int num_controls)
 {
 	struct snd_card *card = component->card->snd_card;
+	int err;
 
-	return gbaudio_remove_controls(card, component->dev, controls,
-				       num_controls, component->name_prefix);
+	down_write(&card->controls_rwsem);
+	err = gbaudio_remove_controls(card, component->dev, controls,
+				      num_controls, component->name_prefix);
+	up_write(&card->controls_rwsem);
+	return err;
 }
-- 
GitLab


From 8d0163cec7de995f9eb9c3128c83fb84f0cb1c64 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 17 Nov 2021 10:20:16 +0300
Subject: [PATCH 1756/4878] staging: rtl8192e: Fix use after free in
 _rtl92e_pci_disconnect()

commit b535917c51acc97fb0761b1edec85f1f3d02bda4 upstream.

The free_rtllib() function frees the "dev" pointer so there is use
after free on the next line.  Re-arrange things to avoid that.

Fixes: 66898177e7e5 ("staging: rtl8192e: Fix unload/reload problem")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211117072016.GA5237@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 663675efcfe4c..99c27d6b42333 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -2551,13 +2551,14 @@ static void _rtl92e_pci_disconnect(struct pci_dev *pdev)
 			free_irq(dev->irq, dev);
 			priv->irq = 0;
 		}
-		free_rtllib(dev);
 
 		if (dev->mem_start != 0) {
 			iounmap((void __iomem *)dev->mem_start);
 			release_mem_region(pci_resource_start(pdev, 1),
 					pci_resource_len(pdev, 1));
 		}
+
+		free_rtllib(dev);
 	} else {
 		priv = rtllib_priv(dev);
 	}
-- 
GitLab


From 8f4d0719f323e84f2ad9ce6b0fc62752abf2bbd4 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Thu, 25 Nov 2021 14:05:18 +0100
Subject: [PATCH 1757/4878] fuse: release pipe buf after last use

commit 473441720c8616dfaf4451f9c7ea14f0eb5e5d65 upstream.

Checking buf->flags should be done before the pipe_buf_release() is called
on the pipe buffer, since releasing the buffer might modify the flags.

This is exactly what page_cache_pipe_buf_release() does, and which results
in the same VM_BUG_ON_PAGE(PageLRU(page)) that the original patch was
trying to fix.

Reported-by: Justin Forbes <jmforbes@linuxtx.org>
Fixes: 712a951025c0 ("fuse: fix page stealing")
Cc: <stable@vger.kernel.org> # v2.6.35
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/dev.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index fb1917730e0e4..d100b5dfedbd2 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -851,17 +851,17 @@ static int fuse_try_move_page(struct fuse_copy_state *cs, struct page **pagep)
 		goto out_put_old;
 	}
 
+	get_page(newpage);
+
+	if (!(buf->flags & PIPE_BUF_FLAG_LRU))
+		lru_cache_add(newpage);
+
 	/*
 	 * Release while we have extra ref on stolen page.  Otherwise
 	 * anon_pipe_buf_release() might think the page can be reused.
 	 */
 	pipe_buf_release(cs->pipe, buf);
 
-	get_page(newpage);
-
-	if (!(buf->flags & PIPE_BUF_FLAG_LRU))
-		lru_cache_add(newpage);
-
 	err = 0;
 	spin_lock(&cs->req->waitq.lock);
 	if (test_bit(FR_ABORTED, &cs->req->flags))
-- 
GitLab


From e1d492c2751954202207d432ca7ac99b7973773c Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@xilinx.com>
Date: Mon, 15 Nov 2021 14:27:19 -0800
Subject: [PATCH 1758/4878] xen: don't continue xenstore initialization in case
 of errors

commit 08f6c2b09ebd4b326dbe96d13f94fee8f9814c78 upstream.

In case of errors in xenbus_init (e.g. missing xen_store_gfn parameter),
we goto out_error but we forget to reset xen_store_domain_type to
XS_UNKNOWN. As a consequence xenbus_probe_initcall and other initcalls
will still try to initialize xenstore resulting into a crash at boot.

[    2.479830] Call trace:
[    2.482314]  xb_init_comms+0x18/0x150
[    2.486354]  xs_init+0x34/0x138
[    2.489786]  xenbus_probe+0x4c/0x70
[    2.498432]  xenbus_probe_initcall+0x2c/0x7c
[    2.503944]  do_one_initcall+0x54/0x1b8
[    2.507358]  kernel_init_freeable+0x1ac/0x210
[    2.511617]  kernel_init+0x28/0x130
[    2.516112]  ret_from_fork+0x10/0x20

Cc: <Stable@vger.kernel.org>
Cc: jbeulich@suse.com
Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Link: https://lore.kernel.org/r/20211115222719.2558207-1-sstabellini@kernel.org
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/xenbus/xenbus_probe.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 8a75092bb148b..b04dec7fd3669 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -846,7 +846,7 @@ static struct notifier_block xenbus_resume_nb = {
 
 static int __init xenbus_init(void)
 {
-	int err = 0;
+	int err;
 	uint64_t v = 0;
 	xen_store_domain_type = XS_UNKNOWN;
 
@@ -920,8 +920,10 @@ static int __init xenbus_init(void)
 	 */
 	proc_create_mount_point("xen");
 #endif
+	return 0;
 
 out_error:
+	xen_store_domain_type = XS_UNKNOWN;
 	return err;
 }
 
-- 
GitLab


From bfed9c2f2f2ed36b06ad9a9bedc9c47c0d92f10e Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@xilinx.com>
Date: Tue, 23 Nov 2021 13:07:48 -0800
Subject: [PATCH 1759/4878] xen: detect uninitialized xenbus in xenbus_init

commit 36e8f60f0867d3b70d398d653c17108459a04efe upstream.

If the xenstore page hasn't been allocated properly, reading the value
of the related hvm_param (HVM_PARAM_STORE_PFN) won't actually return
error. Instead, it will succeed and return zero. Instead of attempting
to xen_remap a bad guest physical address, detect this condition and
return early.

Note that although a guest physical address of zero for
HVM_PARAM_STORE_PFN is theoretically possible, it is not a good choice
and zero has never been validly used in that capacity.

Also recognize all bits set as an invalid value.

For 32-bit Linux, any pfn above ULONG_MAX would get truncated. Pfns
above ULONG_MAX should never be passed by the Xen tools to HVM guests
anyway, so check for this condition and return early.

Cc: stable@vger.kernel.org
Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Link: https://lore.kernel.org/r/20211123210748.1910236-1-sstabellini@kernel.org
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/xenbus/xenbus_probe.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index b04dec7fd3669..98d870672dc5e 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -886,6 +886,29 @@ static int __init xenbus_init(void)
 		err = hvm_get_parameter(HVM_PARAM_STORE_PFN, &v);
 		if (err)
 			goto out_error;
+		/*
+		 * Uninitialized hvm_params are zero and return no error.
+		 * Although it is theoretically possible to have
+		 * HVM_PARAM_STORE_PFN set to zero on purpose, in reality it is
+		 * not zero when valid. If zero, it means that Xenstore hasn't
+		 * been properly initialized. Instead of attempting to map a
+		 * wrong guest physical address return error.
+		 *
+		 * Also recognize all bits set as an invalid value.
+		 */
+		if (!v || !~v) {
+			err = -ENOENT;
+			goto out_error;
+		}
+		/* Avoid truncation on 32-bit. */
+#if BITS_PER_LONG == 32
+		if (v > ULONG_MAX) {
+			pr_err("%s: cannot handle HVM_PARAM_STORE_PFN=%llx > ULONG_MAX\n",
+			       __func__, v);
+			err = -EINVAL;
+			goto out_error;
+		}
+#endif
 		xen_store_gfn = (unsigned long)v;
 		xen_store_interface =
 			xen_remap(xen_store_gfn << XEN_PAGE_SHIFT,
-- 
GitLab


From b777c866aafc8fec2f79bf45dde7af044ad3c5ff Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Fri, 19 Nov 2021 13:16:27 +1000
Subject: [PATCH 1760/4878] KVM: PPC: Book3S HV: Prevent POWER7/8 TLB flush
 flushing SLB

commit cf0b0e3712f7af90006f8317ff27278094c2c128 upstream.

The POWER9 ERAT flush instruction is a SLBIA with IH=7, which is a
reserved value on POWER7/8. On POWER8 this invalidates the SLB entries
above index 0, similarly to SLBIA IH=0.

If the SLB entries are invalidated, and then the guest is bypassed, the
host SLB does not get re-loaded, so the bolted entries above 0 will be
lost. This can result in kernel stack access causing a SLB fault.

Kernel stack access causing a SLB fault was responsible for the infamous
mega bug (search "Fix SLB reload bug"). Although since commit
48e7b7695745 ("powerpc/64s/hash: Convert SLB miss handlers to C") that
starts using the kernel stack in the SLB miss handler, it might only
result in an infinite loop of SLB faults. In any case it's a bug.

Fix this by only executing the instruction on >= POWER9 where IH=7 is
defined not to invalidate the SLB. POWER7/8 don't require this ERAT
flush.

Fixes: 500871125920 ("KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211119031627.577853-1-npiggin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kvm/book3s_hv_builtin.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 4621905bdd9ea..121fca2bcd82b 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -867,6 +867,7 @@ static void flush_guest_tlb(struct kvm *kvm)
 				       "r" (0) : "memory");
 		}
 		asm volatile("ptesync": : :"memory");
+		// POWER9 congruence-class TLBIEL leaves ERAT. Flush it now.
 		asm volatile(PPC_RADIX_INVALIDATE_ERAT_GUEST : : :"memory");
 	} else {
 		for (set = 0; set < kvm->arch.tlb_sets; ++set) {
@@ -877,7 +878,9 @@ static void flush_guest_tlb(struct kvm *kvm)
 			rb += PPC_BIT(51);	/* increment set number */
 		}
 		asm volatile("ptesync": : :"memory");
-		asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory");
+		// POWER9 congruence-class TLBIEL leaves ERAT. Flush it now.
+		if (cpu_has_feature(CPU_FTR_ARCH_300))
+			asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory");
 	}
 }
 
-- 
GitLab


From 68fa6bf7f1798edd07fbfc9865a7e9b92dfbef4c Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 23 Nov 2021 15:28:01 +0100
Subject: [PATCH 1761/4878] tracing/uprobe: Fix uprobe_perf_open probes
 iteration

commit 1880ed71ce863318c1ce93bf324876fb5f92854f upstream.

Add missing 'tu' variable initialization in the probes loop,
otherwise the head 'tu' is used instead of added probes.

Link: https://lkml.kernel.org/r/20211123142801.182530-1-jolsa@kernel.org

Cc: stable@vger.kernel.org
Fixes: 99c9a923e97a ("tracing/uprobe: Fix double perf_event linking on multiprobe uprobe")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_uprobe.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 0dd6e286e5196..9900d4e3808cc 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -1312,6 +1312,7 @@ static int uprobe_perf_open(struct trace_event_call *call,
 		return 0;
 
 	list_for_each_entry(pos, trace_probe_probe_list(tp), list) {
+		tu = container_of(pos, struct trace_uprobe, tp);
 		err = uprobe_apply(tu->inode, tu->offset, &tu->consumer, true);
 		if (err) {
 			uprobe_perf_close(call, event);
-- 
GitLab


From 092a58f0d9ef5013ad3c197a9a5ecf2d7f797a88 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Fri, 26 Nov 2021 17:34:42 -0500
Subject: [PATCH 1762/4878] tracing: Fix pid filtering when triggers are
 attached

commit a55f224ff5f238013de8762c4287117e47b86e22 upstream.

If a event is filtered by pid and a trigger that requires processing of
the event to happen is a attached to the event, the discard portion does
not take the pid filtering into account, and the event will then be
recorded when it should not have been.

Cc: stable@vger.kernel.org
Fixes: 3fdaf80f4a836 ("tracing: Implement event pid filtering")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace.h | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 15a811d34cd82..8d67f7f448400 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1506,14 +1506,26 @@ __event_trigger_test_discard(struct trace_event_file *file,
 	if (eflags & EVENT_FILE_FL_TRIGGER_COND)
 		*tt = event_triggers_call(file, entry, event);
 
-	if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags) ||
-	    (unlikely(file->flags & EVENT_FILE_FL_FILTERED) &&
-	     !filter_match_preds(file->filter, entry))) {
-		__trace_event_discard_commit(buffer, event);
-		return true;
-	}
+	if (likely(!(file->flags & (EVENT_FILE_FL_SOFT_DISABLED |
+				    EVENT_FILE_FL_FILTERED |
+				    EVENT_FILE_FL_PID_FILTER))))
+		return false;
+
+	if (file->flags & EVENT_FILE_FL_SOFT_DISABLED)
+		goto discard;
+
+	if (file->flags & EVENT_FILE_FL_FILTERED &&
+	    !filter_match_preds(file->filter, entry))
+		goto discard;
+
+	if ((file->flags & EVENT_FILE_FL_PID_FILTER) &&
+	    trace_event_ignore_this_pid(file))
+		goto discard;
 
 	return false;
+ discard:
+	__trace_event_discard_commit(buffer, event);
+	return true;
 }
 
 /**
-- 
GitLab


From 63195705b334fc8bf4b17f0b8ef655c81c9e21ec Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Wed, 3 Nov 2021 09:54:15 -0700
Subject: [PATCH 1763/4878] mmc: sdhci-esdhc-imx: disable CMDQ support

commit adab993c25191b839b415781bdc7173a77315240 upstream.

On IMX SoC's which support CMDQ the following can occur during high a
high cpu load:

mmc2: cqhci: ============ CQHCI REGISTER DUMP ===========
mmc2: cqhci: Caps:      0x0000310a | Version:  0x00000510
mmc2: cqhci: Config:    0x00001001 | Control:  0x00000000
mmc2: cqhci: Int stat:  0x00000000 | Int enab: 0x00000006
mmc2: cqhci: Int sig:   0x00000006 | Int Coal: 0x00000000
mmc2: cqhci: TDL base:  0x8003f000 | TDL up32: 0x00000000
mmc2: cqhci: Doorbell:  0xbf01dfff | TCN:      0x00000000
mmc2: cqhci: Dev queue: 0x00000000 | Dev Pend: 0x08000000
mmc2: cqhci: Task clr:  0x00000000 | SSC1:     0x00011000
mmc2: cqhci: SSC2:      0x00000001 | DCMD rsp: 0x00000800
mmc2: cqhci: RED mask:  0xfdf9a080 | TERRI:    0x00000000
mmc2: cqhci: Resp idx:  0x0000000d | Resp arg: 0x00000000
mmc2: sdhci: ============ SDHCI REGISTER DUMP ===========
mmc2: sdhci: Sys addr:  0x7c722000 | Version:  0x00000002
mmc2: sdhci: Blk size:  0x00000200 | Blk cnt:  0x00000020
mmc2: sdhci: Argument:  0x00018000 | Trn mode: 0x00000023
mmc2: sdhci: Present:   0x01f88008 | Host ctl: 0x00000030
mmc2: sdhci: Power:     0x00000002 | Blk gap:  0x00000080
mmc2: sdhci: Wake-up:   0x00000008 | Clock:    0x0000000f
mmc2: sdhci: Timeout:   0x0000008f | Int stat: 0x00000000
mmc2: sdhci: Int enab:  0x107f4000 | Sig enab: 0x107f4000
mmc2: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000502
mmc2: sdhci: Caps:      0x07eb0000 | Caps_1:   0x8000b407
mmc2: sdhci: Cmd:       0x00000d1a | Max curr: 0x00ffffff
mmc2: sdhci: Resp[0]:   0x00000000 | Resp[1]:  0xffc003ff
mmc2: sdhci: Resp[2]:   0x328f5903 | Resp[3]:  0x00d07f01
mmc2: sdhci: Host ctl2: 0x00000088
mmc2: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0xfe179020
mmc2: sdhci-esdhc-imx: ========= ESDHC IMX DEBUG STATUS DUMP ====
mmc2: sdhci-esdhc-imx: cmd debug status:  0x2120
mmc2: sdhci-esdhc-imx: data debug status:  0x2200
mmc2: sdhci-esdhc-imx: trans debug status:  0x2300
mmc2: sdhci-esdhc-imx: dma debug status:  0x2400
mmc2: sdhci-esdhc-imx: adma debug status:  0x2510
mmc2: sdhci-esdhc-imx: fifo debug status:  0x2680
mmc2: sdhci-esdhc-imx: async fifo debug status:  0x2750
mmc2: sdhci: ============================================

For now, disable CMDQ support on the imx8qm/imx8qxp/imx8mm until the
issue is found and resolved.

Fixes: bb6e358169bf6 ("mmc: sdhci-esdhc-imx: add CMDQ support")
Fixes: cde5e8e9ff146 ("mmc: sdhci-esdhc-imx: Add an new esdhc_soc_data for i.MX8MM")
Cc: stable@vger.kernel.org
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20211103165415.2016-1-tharvey@gateworks.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 20cbd71cba9d9..a4bd85b200a3e 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -263,7 +263,6 @@ static struct esdhc_soc_data usdhc_imx8qxp_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
 			| ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
-			| ESDHC_FLAG_CQHCI
 			| ESDHC_FLAG_STATE_LOST_IN_LPMODE
 			| ESDHC_FLAG_CLK_RATE_LOST_IN_PM_RUNTIME,
 };
@@ -272,7 +271,6 @@ static struct esdhc_soc_data usdhc_imx8mm_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
 			| ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
-			| ESDHC_FLAG_CQHCI
 			| ESDHC_FLAG_STATE_LOST_IN_LPMODE,
 };
 
-- 
GitLab


From 14c3ce30ddbd70a0b025202249dd8d83c6072592 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 15 Nov 2021 10:23:45 +0200
Subject: [PATCH 1764/4878] mmc: sdhci: Fix ADMA for PAGE_SIZE >= 64KiB

commit 3d7c194b7c9ad414264935ad4f943a6ce285ebb1 upstream.

The block layer forces a minimum segment size of PAGE_SIZE, so a segment
can be too big for the ADMA table, if PAGE_SIZE >= 64KiB. Fix by writing
multiple descriptors, noting that the ADMA table is sized for 4KiB chunks
anyway, so it will be big enough.

Reported-and-tested-by: Bough Chen <haibo.chen@nxp.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211115082345.802238-1-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci.c | 21 ++++++++++++++++++---
 drivers/mmc/host/sdhci.h |  4 +++-
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 07d131fac7606..d42e86cdff12e 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -772,7 +772,19 @@ static void sdhci_adma_table_pre(struct sdhci_host *host,
 			len -= offset;
 		}
 
-		BUG_ON(len > 65536);
+		/*
+		 * The block layer forces a minimum segment size of PAGE_SIZE,
+		 * so 'len' can be too big here if PAGE_SIZE >= 64KiB. Write
+		 * multiple descriptors, noting that the ADMA table is sized
+		 * for 4KiB chunks anyway, so it will be big enough.
+		 */
+		while (len > host->max_adma) {
+			int n = 32 * 1024; /* 32KiB*/
+
+			__sdhci_adma_write_desc(host, &desc, addr, n, ADMA2_TRAN_VALID);
+			addr += n;
+			len -= n;
+		}
 
 		/* tran, valid */
 		if (len)
@@ -3948,6 +3960,7 @@ struct sdhci_host *sdhci_alloc_host(struct device *dev,
 	 * descriptor for each segment, plus 1 for a nop end descriptor.
 	 */
 	host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1;
+	host->max_adma = 65536;
 
 	return host;
 }
@@ -4611,10 +4624,12 @@ int sdhci_setup_host(struct sdhci_host *host)
 	 * be larger than 64 KiB though.
 	 */
 	if (host->flags & SDHCI_USE_ADMA) {
-		if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC)
+		if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC) {
+			host->max_adma = 65532; /* 32-bit alignment */
 			mmc->max_seg_size = 65535;
-		else
+		} else {
 			mmc->max_seg_size = 65536;
+		}
 	} else {
 		mmc->max_seg_size = mmc->max_req_size;
 	}
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 960fed78529e1..8b1650f37fbba 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -338,7 +338,8 @@ struct sdhci_adma2_64_desc {
 
 /*
  * Maximum segments assuming a 512KiB maximum requisition size and a minimum
- * 4KiB page size.
+ * 4KiB page size. Note this also allows enough for multiple descriptors in
+ * case of PAGE_SIZE >= 64KiB.
  */
 #define SDHCI_MAX_SEGS		128
 
@@ -540,6 +541,7 @@ struct sdhci_host {
 	unsigned int blocks;	/* remaining PIO blocks */
 
 	int sg_count;		/* Mapped sg entries */
+	int max_adma;		/* Max. length in ADMA descriptor */
 
 	void *adma_table;	/* ADMA descriptor table */
 	void *align_buffer;	/* Bounce buffer */
-- 
GitLab


From bf00edd9e6c9d6f19bb3f7501de97e94e9a74b32 Mon Sep 17 00:00:00 2001
From: Dylan Hung <dylan_hung@aspeedtech.com>
Date: Thu, 25 Nov 2021 10:44:32 +0800
Subject: [PATCH 1765/4878] mdio: aspeed: Fix "Link is Down" issue

commit 9dbe33cf371bd70330858370bdbc35c7668f00c3 upstream.

The issue happened randomly in runtime.  The message "Link is Down" is
popped but soon it recovered to "Link is Up".

The "Link is Down" results from the incorrect read data for reading the
PHY register via MDIO bus.  The correct sequence for reading the data
shall be:
1. fire the command
2. wait for command done (this step was missing)
3. wait for data idle
4. read data from data register

Cc: stable@vger.kernel.org
Fixes: f160e99462c6 ("net: phy: Add mdio-aspeed")
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20211125024432.15809-1-dylan_hung@aspeedtech.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/mdio/mdio-aspeed.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/mdio/mdio-aspeed.c b/drivers/net/mdio/mdio-aspeed.c
index cad820568f751..966c3b4ad59d1 100644
--- a/drivers/net/mdio/mdio-aspeed.c
+++ b/drivers/net/mdio/mdio-aspeed.c
@@ -61,6 +61,13 @@ static int aspeed_mdio_read(struct mii_bus *bus, int addr, int regnum)
 
 	iowrite32(ctrl, ctx->base + ASPEED_MDIO_CTRL);
 
+	rc = readl_poll_timeout(ctx->base + ASPEED_MDIO_CTRL, ctrl,
+				!(ctrl & ASPEED_MDIO_CTRL_FIRE),
+				ASPEED_MDIO_INTERVAL_US,
+				ASPEED_MDIO_TIMEOUT_US);
+	if (rc < 0)
+		return rc;
+
 	rc = readl_poll_timeout(ctx->base + ASPEED_MDIO_DATA, data,
 				data & ASPEED_MDIO_DATA_IDLE,
 				ASPEED_MDIO_INTERVAL_US,
-- 
GitLab


From dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Thu, 18 Nov 2021 10:39:53 +0100
Subject: [PATCH 1766/4878] powerpc/32: Fix hardlockup on vmap stack overflow

commit 5bb60ea611db1e04814426ed4bd1c95d1487678e upstream.

Since the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not
activate MMU before reading task struct") a vmap stack overflow
results in a hard lockup. This is because emergency_ctx is still
addressed with its virtual address allthough data MMU is not active
anymore at that time.

Fix it by using a physical address instead.

Fixes: c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not activate MMU before reading task struct")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ce30364fb7ccda489272af4a1612b6aa147e1d23.1637227521.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/head_32.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h
index f8e3d15ddf694..abb057a86739b 100644
--- a/arch/powerpc/kernel/head_32.h
+++ b/arch/powerpc/kernel/head_32.h
@@ -333,11 +333,11 @@ label:
 	mfspr	r1, SPRN_SPRG_THREAD
 	lwz	r1, TASK_CPU - THREAD(r1)
 	slwi	r1, r1, 3
-	addis	r1, r1, emergency_ctx@ha
+	addis	r1, r1, emergency_ctx-PAGE_OFFSET@ha
 #else
-	lis	r1, emergency_ctx@ha
+	lis	r1, emergency_ctx-PAGE_OFFSET@ha
 #endif
-	lwz	r1, emergency_ctx@l(r1)
+	lwz	r1, emergency_ctx-PAGE_OFFSET@l(r1)
 	addi	r1, r1, THREAD_SIZE - INT_FRAME_SIZE
 	EXCEPTION_PROLOG_2
 	SAVE_NVGPRS(r11)
-- 
GitLab


From 2b7bc1c4b2c835cd13a6173f448156b669f1c163 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Tue, 5 Oct 2021 20:09:47 +0200
Subject: [PATCH 1767/4878] PCI: aardvark: Deduplicate code in
 advk_pcie_rd_conf()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 67cb2a4c93499c2c22704998fd1fd2bc35194d8e upstream.

Avoid code repetition in advk_pcie_rd_conf() by handling errors with
goto jump, as is customary in kernel.

Link: https://lore.kernel.org/r/20211005180952.6812-9-kabel@kernel.org
Fixes: 43f5c77bcbd2 ("PCI: aardvark: Fix reporting CRS value")
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 48 +++++++++++----------------
 1 file changed, 20 insertions(+), 28 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 434522465d983..71fdaf010ad11 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1090,18 +1090,8 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 		    (le16_to_cpu(pcie->bridge.pcie_conf.rootctl) &
 		     PCI_EXP_RTCTL_CRSSVE);
 
-	if (advk_pcie_pio_is_running(pcie)) {
-		/*
-		 * If it is possible return Completion Retry Status so caller
-		 * tries to issue the request again instead of failing.
-		 */
-		if (allow_crs) {
-			*val = CFG_RD_CRS_VAL;
-			return PCIBIOS_SUCCESSFUL;
-		}
-		*val = 0xffffffff;
-		return PCIBIOS_SET_FAILED;
-	}
+	if (advk_pcie_pio_is_running(pcie))
+		goto try_crs;
 
 	/* Program the control register */
 	reg = advk_readl(pcie, PIO_CTRL);
@@ -1125,25 +1115,13 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 	advk_writel(pcie, 1, PIO_START);
 
 	ret = advk_pcie_wait_pio(pcie);
-	if (ret < 0) {
-		/*
-		 * If it is possible return Completion Retry Status so caller
-		 * tries to issue the request again instead of failing.
-		 */
-		if (allow_crs) {
-			*val = CFG_RD_CRS_VAL;
-			return PCIBIOS_SUCCESSFUL;
-		}
-		*val = 0xffffffff;
-		return PCIBIOS_SET_FAILED;
-	}
+	if (ret < 0)
+		goto try_crs;
 
 	/* Check PIO status and get the read result */
 	ret = advk_pcie_check_pio_status(pcie, allow_crs, val);
-	if (ret < 0) {
-		*val = 0xffffffff;
-		return PCIBIOS_SET_FAILED;
-	}
+	if (ret < 0)
+		goto fail;
 
 	if (size == 1)
 		*val = (*val >> (8 * (where & 3))) & 0xff;
@@ -1151,6 +1129,20 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 		*val = (*val >> (8 * (where & 3))) & 0xffff;
 
 	return PCIBIOS_SUCCESSFUL;
+
+try_crs:
+	/*
+	 * If it is possible, return Completion Retry Status so that caller
+	 * tries to issue the request again instead of failing.
+	 */
+	if (allow_crs) {
+		*val = CFG_RD_CRS_VAL;
+		return PCIBIOS_SUCCESSFUL;
+	}
+
+fail:
+	*val = 0xffffffff;
+	return PCIBIOS_SET_FAILED;
 }
 
 static int advk_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
-- 
GitLab


From e7f2e2c758ea55df94356d5f0341874ab9179110 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 2 Dec 2020 19:46:59 +0100
Subject: [PATCH 1768/4878] PCI: aardvark: Update comment about disabling link
 training
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 1d1cd163d0de22a4041a6f1aeabcf78f80076539 upstream.

According to PCI Express Base Specifications (rev 4.0, 6.6.1
"Conventional reset"), after fundamental reset a 100ms delay is needed
prior to enabling link training.

Update comment in code to reflect this requirement.

Link: https://lore.kernel.org/r/20201202184659.3795-1-pali@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 71fdaf010ad11..a19562de61863 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -389,7 +389,14 @@ static void advk_pcie_issue_perst(struct advk_pcie *pcie)
 	if (!pcie->reset_gpio)
 		return;
 
-	/* PERST does not work for some cards when link training is enabled */
+	/*
+	 * As required by PCI Express spec (PCI Express Base Specification, REV.
+	 * 4.0 PCI Express, February 19 2014, 6.6.1 Conventional Reset) a delay
+	 * for at least 100ms after de-asserting PERST# signal is needed before
+	 * link training is enabled. So ensure that link training is disabled
+	 * prior de-asserting PERST# signal to fulfill that PCI Express spec
+	 * requirement.
+	 */
 	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
 	reg &= ~LINK_TRAINING_EN;
 	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
-- 
GitLab


From df5748098878c5ca34798b39dbca09c6161eeb63 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:48 +0200
Subject: [PATCH 1769/4878] PCI: aardvark: Implement re-issuing config requests
 on CRS response
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 223dec14a05337a4155f1deed46d2becce4d00fd upstream.

Commit 43f5c77bcbd2 ("PCI: aardvark: Fix reporting CRS value") fixed
handling of CRS response and when CRSSVE flag was not enabled it marked CRS
response as failed transaction (due to simplicity).

But pci-aardvark.c driver is already waiting up to the PIO_RETRY_CNT count
for PIO config response and so we can with a small change implement
re-issuing of config requests as described in PCIe base specification.

This change implements re-issuing of config requests when response is CRS.
Set upper bound of wait cycles to around PIO_RETRY_CNT, afterwards the
transaction is marked as failed and an all-ones value is returned as
before.

We do this by returning appropriate error codes from function
advk_pcie_check_pio_status(). On CRS we return -EAGAIN and caller then
reissues transaction.

Link: https://lore.kernel.org/r/20211005180952.6812-10-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 67 +++++++++++++++++----------
 1 file changed, 43 insertions(+), 24 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index a19562de61863..c81a811c75b86 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -699,6 +699,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 	u32 reg;
 	unsigned int status;
 	char *strcomp_status, *str_posted;
+	int ret;
 
 	reg = advk_readl(pcie, PIO_STAT);
 	status = (reg & PIO_COMPLETION_STATUS_MASK) >>
@@ -723,6 +724,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 	case PIO_COMPLETION_STATUS_OK:
 		if (reg & PIO_ERR_STATUS) {
 			strcomp_status = "COMP_ERR";
+			ret = -EFAULT;
 			break;
 		}
 		/* Get the read result */
@@ -730,9 +732,11 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 			*val = advk_readl(pcie, PIO_RD_DATA);
 		/* No error */
 		strcomp_status = NULL;
+		ret = 0;
 		break;
 	case PIO_COMPLETION_STATUS_UR:
 		strcomp_status = "UR";
+		ret = -EOPNOTSUPP;
 		break;
 	case PIO_COMPLETION_STATUS_CRS:
 		if (allow_crs && val) {
@@ -750,6 +754,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 			 */
 			*val = CFG_RD_CRS_VAL;
 			strcomp_status = NULL;
+			ret = 0;
 			break;
 		}
 		/* PCIe r4.0, sec 2.3.2, says:
@@ -765,21 +770,24 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 		 * Request and taking appropriate action, e.g., complete the
 		 * Request to the host as a failed transaction.
 		 *
-		 * To simplify implementation do not re-issue the Configuration
-		 * Request and complete the Request as a failed transaction.
+		 * So return -EAGAIN and caller (pci-aardvark.c driver) will
+		 * re-issue request again up to the PIO_RETRY_CNT retries.
 		 */
 		strcomp_status = "CRS";
+		ret = -EAGAIN;
 		break;
 	case PIO_COMPLETION_STATUS_CA:
 		strcomp_status = "CA";
+		ret = -ECANCELED;
 		break;
 	default:
 		strcomp_status = "Unknown";
+		ret = -EINVAL;
 		break;
 	}
 
 	if (!strcomp_status)
-		return 0;
+		return ret;
 
 	if (reg & PIO_NON_POSTED_REQ)
 		str_posted = "Non-posted";
@@ -789,7 +797,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 	dev_dbg(dev, "%s PIO Response Status: %s, %#x @ %#x\n",
 		str_posted, strcomp_status, reg, advk_readl(pcie, PIO_ADDR_LS));
 
-	return -EFAULT;
+	return ret;
 }
 
 static int advk_pcie_wait_pio(struct advk_pcie *pcie)
@@ -797,13 +805,13 @@ static int advk_pcie_wait_pio(struct advk_pcie *pcie)
 	struct device *dev = &pcie->pdev->dev;
 	int i;
 
-	for (i = 0; i < PIO_RETRY_CNT; i++) {
+	for (i = 1; i <= PIO_RETRY_CNT; i++) {
 		u32 start, isr;
 
 		start = advk_readl(pcie, PIO_START);
 		isr = advk_readl(pcie, PIO_ISR);
 		if (!start && isr)
-			return 0;
+			return i;
 		udelay(PIO_RETRY_DELAY);
 	}
 
@@ -1075,6 +1083,7 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 			     int where, int size, u32 *val)
 {
 	struct advk_pcie *pcie = bus->sysdata;
+	int retry_count;
 	bool allow_crs;
 	u32 reg;
 	int ret;
@@ -1117,16 +1126,22 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 	/* Program the data strobe */
 	advk_writel(pcie, 0xf, PIO_WR_DATA_STRB);
 
-	/* Clear PIO DONE ISR and start the transfer */
-	advk_writel(pcie, 1, PIO_ISR);
-	advk_writel(pcie, 1, PIO_START);
+	retry_count = 0;
+	do {
+		/* Clear PIO DONE ISR and start the transfer */
+		advk_writel(pcie, 1, PIO_ISR);
+		advk_writel(pcie, 1, PIO_START);
 
-	ret = advk_pcie_wait_pio(pcie);
-	if (ret < 0)
-		goto try_crs;
+		ret = advk_pcie_wait_pio(pcie);
+		if (ret < 0)
+			goto try_crs;
+
+		retry_count += ret;
+
+		/* Check PIO status and get the read result */
+		ret = advk_pcie_check_pio_status(pcie, allow_crs, val);
+	} while (ret == -EAGAIN && retry_count < PIO_RETRY_CNT);
 
-	/* Check PIO status and get the read result */
-	ret = advk_pcie_check_pio_status(pcie, allow_crs, val);
 	if (ret < 0)
 		goto fail;
 
@@ -1158,6 +1173,7 @@ static int advk_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
 	struct advk_pcie *pcie = bus->sysdata;
 	u32 reg;
 	u32 data_strobe = 0x0;
+	int retry_count;
 	int offset;
 	int ret;
 
@@ -1199,19 +1215,22 @@ static int advk_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
 	/* Program the data strobe */
 	advk_writel(pcie, data_strobe, PIO_WR_DATA_STRB);
 
-	/* Clear PIO DONE ISR and start the transfer */
-	advk_writel(pcie, 1, PIO_ISR);
-	advk_writel(pcie, 1, PIO_START);
+	retry_count = 0;
+	do {
+		/* Clear PIO DONE ISR and start the transfer */
+		advk_writel(pcie, 1, PIO_ISR);
+		advk_writel(pcie, 1, PIO_START);
 
-	ret = advk_pcie_wait_pio(pcie);
-	if (ret < 0)
-		return PCIBIOS_SET_FAILED;
+		ret = advk_pcie_wait_pio(pcie);
+		if (ret < 0)
+			return PCIBIOS_SET_FAILED;
 
-	ret = advk_pcie_check_pio_status(pcie, false, NULL);
-	if (ret < 0)
-		return PCIBIOS_SET_FAILED;
+		retry_count += ret;
 
-	return PCIBIOS_SUCCESSFUL;
+		ret = advk_pcie_check_pio_status(pcie, false, NULL);
+	} while (ret == -EAGAIN && retry_count < PIO_RETRY_CNT);
+
+	return ret < 0 ? PCIBIOS_SET_FAILED : PCIBIOS_SUCCESSFUL;
 }
 
 static struct pci_ops advk_pcie_ops = {
-- 
GitLab


From aec0751f61f5097565820a0f0a546ae1a07f133e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:49 +0200
Subject: [PATCH 1770/4878] PCI: aardvark: Simplify initialization of rootcap
 on virtual bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 454c53271fc11f3aa5e44e41fd99ca181bd32c62 upstream.

PCIe config space can be initialized also before pci_bridge_emul_init()
call, so move rootcap initialization after PCI config space initialization.

This simplifies the function a little since it removes one if (ret < 0)
check.

Link: https://lore.kernel.org/r/20211005180952.6812-11-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index c81a811c75b86..45574b394571e 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -999,7 +999,6 @@ static struct pci_bridge_emul_ops advk_pci_bridge_emul_ops = {
 static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 {
 	struct pci_bridge_emul *bridge = &pcie->bridge;
-	int ret;
 
 	bridge->conf.vendor =
 		cpu_to_le16(advk_readl(pcie, PCIE_CORE_DEV_ID_REG) & 0xffff);
@@ -1019,19 +1018,14 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 	/* Support interrupt A for MSI feature */
 	bridge->conf.intpin = PCIE_CORE_INT_A_ASSERT_ENABLE;
 
+	/* Indicates supports for Completion Retry Status */
+	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
+
 	bridge->has_pcie = true;
 	bridge->data = pcie;
 	bridge->ops = &advk_pci_bridge_emul_ops;
 
-	/* PCIe config space can be initialized after pci_bridge_emul_init() */
-	ret = pci_bridge_emul_init(bridge, 0);
-	if (ret < 0)
-		return ret;
-
-	/* Indicates supports for Completion Retry Status */
-	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
-
-	return 0;
+	return pci_bridge_emul_init(bridge, 0);
 }
 
 static bool advk_pcie_valid_device(struct advk_pcie *pcie, struct pci_bus *bus,
-- 
GitLab


From 1f520a0d78fc0f5e847dd08cf8beccf16734191b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 5 Oct 2021 20:09:50 +0200
Subject: [PATCH 1771/4878] PCI: aardvark: Fix link training
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f76b36d40beee0a13aa8f6aa011df0d7cbbb8a7f upstream.

Fix multiple link training issues in aardvark driver. The main reason of
these issues was misunderstanding of what certain registers do, since their
names and comments were misleading: before commit 96be36dbffac ("PCI:
aardvark: Replace custom macros by standard linux/pci_regs.h macros"), the
pci-aardvark.c driver used custom macros for accessing standard PCIe Root
Bridge registers, and misleading comments did not help to understand what
the code was really doing.

After doing more tests and experiments I've come to the conclusion that the
SPEED_GEN register in aardvark sets the PCIe revision / generation
compliance and forces maximal link speed. Both GEN3 and GEN2 values set the
read-only PCI_EXP_FLAGS_VERS bits (PCIe capabilities version of Root
Bridge) to value 2, while GEN1 value sets PCI_EXP_FLAGS_VERS to 1, which
matches with PCI Express specifications revisions 3, 2 and 1 respectively.
Changing SPEED_GEN also sets the read-only bits PCI_EXP_LNKCAP_SLS and
PCI_EXP_LNKCAP2_SLS to corresponding speed.

(Note that PCI Express rev 1 specification does not define PCI_EXP_LNKCAP2
 and PCI_EXP_LNKCTL2 registers and when SPEED_GEN is set to GEN1 (which
 also sets PCI_EXP_FLAGS_VERS set to 1), lspci cannot access
 PCI_EXP_LNKCAP2 and PCI_EXP_LNKCTL2 registers.)

Changing PCIe link speed can be done via PCI_EXP_LNKCTL2_TLS bits of
PCI_EXP_LNKCTL2 register. Armada 3700 Functional Specifications says that
the default value of PCI_EXP_LNKCTL2_TLS is based on SPEED_GEN value, but
tests showed that the default value is always 8.0 GT/s, independently of
speed set by SPEED_GEN. So after setting SPEED_GEN, we must also set value
in PCI_EXP_LNKCTL2 register via PCI_EXP_LNKCTL2_TLS bits.

Triggering PCI_EXP_LNKCTL_RL bit immediately after setting LINK_TRAINING_EN
bit actually doesn't do anything. Tests have shown that a delay is needed
after enabling LINK_TRAINING_EN bit. As triggering PCI_EXP_LNKCTL_RL
currently does nothing, remove it.

Commit 43fc679ced18 ("PCI: aardvark: Improve link training") introduced
code which sets SPEED_GEN register based on negotiated link speed from
PCI_EXP_LNKSTA_CLS bits of PCI_EXP_LNKSTA register. This code was added to
fix detection of Compex WLE900VX (Atheros QCA9880) WiFi GEN1 PCIe cards, as
otherwise these cards were "invisible" on PCIe bus (probably because they
crashed). But apparently more people reported the same issues with these
cards also with other PCIe controllers [1] and I was able to reproduce this
issue also with other "noname" WiFi cards based on Atheros QCA9890 chip
(with the same PCI vendor/device ids as Atheros QCA9880). So this is not an
issue in aardvark but rather an issue in Atheros QCA98xx chips. Also, this
issue only exists if the kernel is compiled with PCIe ASPM support, and a
generic workaround for this is to change PCIe Bridge to 2.5 GT/s link speed
via PCI_EXP_LNKCTL2_TLS_2_5GT bits in PCI_EXP_LNKCTL2 register [2], before
triggering PCI_EXP_LNKCTL_RL bit. This workaround also works when SPEED_GEN
is set to value GEN2 (5 GT/s). So remove this hack completely in the
aardvark driver and always set SPEED_GEN to value from 'max-link-speed' DT
property. Fix for Atheros QCA98xx chips is handled separately by patch [2].

These two things (code for triggering PCI_EXP_LNKCTL_RL bit and changing
SPEED_GEN value) also explain why commit 6964494582f5 ("PCI: aardvark:
Train link immediately after enabling training") somehow fixed detection of
those problematic Compex cards with Atheros chips: if triggering link
retraining (via PCI_EXP_LNKCTL_RL bit) was done immediately after enabling
link training (via LINK_TRAINING_EN), it did nothing. If there was a
specific delay, aardvark HW already initialized PCIe link and therefore
triggering link retraining caused the above issue. Compex cards triggered
link down event and disappeared from the PCIe bus.

Commit f4c7d053d7f7 ("PCI: aardvark: Wait for endpoint to be ready before
training link") added 100ms sleep before calling 'Start link training'
command and explained that it is a requirement of PCI Express
specification. But the code after this 100ms sleep was not doing 'Start
link training', rather it triggered PCI_EXP_LNKCTL_RL bit via PCIe Root
Bridge to put link into Recovery state.

The required delay after fundamental reset is already done in function
advk_pcie_wait_for_link() which also checks whether PCIe link is up.
So after removing the code which triggers PCI_EXP_LNKCTL_RL bit on PCIe
Root Bridge, there is no need to wait 100ms again. Remove the extra
msleep() call and update comment about the delay required by the PCI
Express specification.

According to Marvell Armada 3700 Functional Specifications, Link training
should be enabled via aardvark register LINK_TRAINING_EN after selecting
PCIe generation and x1 lane. There is no need to disable it prior resetting
card via PERST# signal. This disabling code was introduced in commit
5169a9851daa ("PCI: aardvark: Issue PERST via GPIO") as a workaround for
some Atheros cards. It turns out that this also is Atheros specific issue
and affects any PCIe controller, not only aardvark. Moreover this Atheros
issue was triggered by juggling with PCI_EXP_LNKCTL_RL, LINK_TRAINING_EN
and SPEED_GEN bits interleaved with sleeps. Now, after removing triggering
PCI_EXP_LNKCTL_RL, there is no need to explicitly disable LINK_TRAINING_EN
bit. So remove this code too. The problematic Compex cards described in
previous git commits are correctly detected in advk_pcie_train_link()
function even after applying all these changes.

Note that with this patch, and also prior this patch, some NVMe disks which
support PCIe GEN3 with 8 GT/s speed are negotiated only at the lowest link
speed 2.5 GT/s, independently of SPEED_GEN value. After manually triggering
PCI_EXP_LNKCTL_RL bit (e.g. from userspace via setpci), these NVMe disks
change link speed to 5 GT/s when SPEED_GEN was configured to GEN2. This
issue first needs to be properly investigated. I will send a fix in the
future.

On the other hand, some other GEN2 PCIe cards with 5 GT/s speed are
autonomously by HW autonegotiated at full 5 GT/s speed without need of any
software interaction.

Armada 3700 Functional Specifications describes the following steps for
link training: set SPEED_GEN to GEN2, enable LINK_TRAINING_EN, poll until
link training is complete, trigger PCI_EXP_LNKCTL_RL, poll until signal
rate is 5 GT/s, poll until link training is complete, enable ASPM L0s.

The requirement for triggering PCI_EXP_LNKCTL_RL can be explained by the
need to achieve 5 GT/s speed (as changing link speed is done by throw to
recovery state entered by PCI_EXP_LNKCTL_RL) or maybe as a part of enabling
ASPM L0s (but in this case ASPM L0s should have been enabled prior
PCI_EXP_LNKCTL_RL).

It is unknown why the original pci-aardvark.c driver was triggering
PCI_EXP_LNKCTL_RL bit before waiting for the link to be up. This does not
align with neither PCIe base specifications nor with Armada 3700 Functional
Specification. (Note that in older versions of aardvark, this bit was
called incorrectly PCIE_CORE_LINK_TRAINING, so this may be the reason.)

It is also unknown why Armada 3700 Functional Specification says that it is
needed to trigger PCI_EXP_LNKCTL_RL for GEN2 mode, as according to PCIe
base specification 5 GT/s speed negotiation is supposed to be entirely
autonomous, even if initial speed is 2.5 GT/s.

[1] - https://lore.kernel.org/linux-pci/87h7l8axqp.fsf@toke.dk/
[2] - https://lore.kernel.org/linux-pci/20210326124326.21163-1-pali@kernel.org/

Link: https://lore.kernel.org/r/20211005180952.6812-12-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 117 ++++++++------------------
 1 file changed, 34 insertions(+), 83 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 45574b394571e..604b294bb15c9 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -306,11 +306,6 @@ static inline u32 advk_readl(struct advk_pcie *pcie, u64 reg)
 	return readl(pcie->base + reg);
 }
 
-static inline u16 advk_read16(struct advk_pcie *pcie, u64 reg)
-{
-	return advk_readl(pcie, (reg & ~0x3)) >> ((reg & 0x3) * 8);
-}
-
 static u8 advk_pcie_ltssm_state(struct advk_pcie *pcie)
 {
 	u32 val;
@@ -384,23 +379,9 @@ static void advk_pcie_wait_for_retrain(struct advk_pcie *pcie)
 
 static void advk_pcie_issue_perst(struct advk_pcie *pcie)
 {
-	u32 reg;
-
 	if (!pcie->reset_gpio)
 		return;
 
-	/*
-	 * As required by PCI Express spec (PCI Express Base Specification, REV.
-	 * 4.0 PCI Express, February 19 2014, 6.6.1 Conventional Reset) a delay
-	 * for at least 100ms after de-asserting PERST# signal is needed before
-	 * link training is enabled. So ensure that link training is disabled
-	 * prior de-asserting PERST# signal to fulfill that PCI Express spec
-	 * requirement.
-	 */
-	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
-	reg &= ~LINK_TRAINING_EN;
-	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
-
 	/* 10ms delay is needed for some cards */
 	dev_info(&pcie->pdev->dev, "issuing PERST via reset GPIO for 10ms\n");
 	gpiod_set_value_cansleep(pcie->reset_gpio, 1);
@@ -408,53 +389,46 @@ static void advk_pcie_issue_perst(struct advk_pcie *pcie)
 	gpiod_set_value_cansleep(pcie->reset_gpio, 0);
 }
 
-static int advk_pcie_train_at_gen(struct advk_pcie *pcie, int gen)
+static void advk_pcie_train_link(struct advk_pcie *pcie)
 {
-	int ret, neg_gen;
+	struct device *dev = &pcie->pdev->dev;
 	u32 reg;
+	int ret;
 
-	/* Setup link speed */
+	/*
+	 * Setup PCIe rev / gen compliance based on device tree property
+	 * 'max-link-speed' which also forces maximal link speed.
+	 */
 	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
 	reg &= ~PCIE_GEN_SEL_MSK;
-	if (gen == 3)
+	if (pcie->link_gen == 3)
 		reg |= SPEED_GEN_3;
-	else if (gen == 2)
+	else if (pcie->link_gen == 2)
 		reg |= SPEED_GEN_2;
 	else
 		reg |= SPEED_GEN_1;
 	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
 
 	/*
-	 * Enable link training. This is not needed in every call to this
-	 * function, just once suffices, but it does not break anything either.
+	 * Set maximal link speed value also into PCIe Link Control 2 register.
+	 * Armada 3700 Functional Specification says that default value is based
+	 * on SPEED_GEN but tests showed that default value is always 8.0 GT/s.
 	 */
+	reg = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + PCI_EXP_LNKCTL2);
+	reg &= ~PCI_EXP_LNKCTL2_TLS;
+	if (pcie->link_gen == 3)
+		reg |= PCI_EXP_LNKCTL2_TLS_8_0GT;
+	else if (pcie->link_gen == 2)
+		reg |= PCI_EXP_LNKCTL2_TLS_5_0GT;
+	else
+		reg |= PCI_EXP_LNKCTL2_TLS_2_5GT;
+	advk_writel(pcie, reg, PCIE_CORE_PCIEXP_CAP + PCI_EXP_LNKCTL2);
+
+	/* Enable link training after selecting PCIe generation */
 	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
 	reg |= LINK_TRAINING_EN;
 	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
 
-	/*
-	 * Start link training immediately after enabling it.
-	 * This solves problems for some buggy cards.
-	 */
-	reg = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + PCI_EXP_LNKCTL);
-	reg |= PCI_EXP_LNKCTL_RL;
-	advk_writel(pcie, reg, PCIE_CORE_PCIEXP_CAP + PCI_EXP_LNKCTL);
-
-	ret = advk_pcie_wait_for_link(pcie);
-	if (ret)
-		return ret;
-
-	reg = advk_read16(pcie, PCIE_CORE_PCIEXP_CAP + PCI_EXP_LNKSTA);
-	neg_gen = reg & PCI_EXP_LNKSTA_CLS;
-
-	return neg_gen;
-}
-
-static void advk_pcie_train_link(struct advk_pcie *pcie)
-{
-	struct device *dev = &pcie->pdev->dev;
-	int neg_gen = -1, gen;
-
 	/*
 	 * Reset PCIe card via PERST# signal. Some cards are not detected
 	 * during link training when they are in some non-initial state.
@@ -465,41 +439,18 @@ static void advk_pcie_train_link(struct advk_pcie *pcie)
 	 * PERST# signal could have been asserted by pinctrl subsystem before
 	 * probe() callback has been called or issued explicitly by reset gpio
 	 * function advk_pcie_issue_perst(), making the endpoint going into
-	 * fundamental reset. As required by PCI Express spec a delay for at
-	 * least 100ms after such a reset before link training is needed.
-	 */
-	msleep(PCI_PM_D3COLD_WAIT);
-
-	/*
-	 * Try link training at link gen specified by device tree property
-	 * 'max-link-speed'. If this fails, iteratively train at lower gen.
-	 */
-	for (gen = pcie->link_gen; gen > 0; --gen) {
-		neg_gen = advk_pcie_train_at_gen(pcie, gen);
-		if (neg_gen > 0)
-			break;
-	}
-
-	if (neg_gen < 0)
-		goto err;
-
-	/*
-	 * After successful training if negotiated gen is lower than requested,
-	 * train again on negotiated gen. This solves some stability issues for
-	 * some buggy gen1 cards.
+	 * fundamental reset. As required by PCI Express spec (PCI Express
+	 * Base Specification, REV. 4.0 PCI Express, February 19 2014, 6.6.1
+	 * Conventional Reset) a delay for at least 100ms after such a reset
+	 * before sending a Configuration Request to the device is needed.
+	 * So wait until PCIe link is up. Function advk_pcie_wait_for_link()
+	 * waits for link at least 900ms.
 	 */
-	if (neg_gen < gen) {
-		gen = neg_gen;
-		neg_gen = advk_pcie_train_at_gen(pcie, gen);
-	}
-
-	if (neg_gen == gen) {
-		dev_info(dev, "link up at gen %i\n", gen);
-		return;
-	}
-
-err:
-	dev_err(dev, "link never came up\n");
+	ret = advk_pcie_wait_for_link(pcie);
+	if (ret < 0)
+		dev_err(dev, "link never came up\n");
+	else
+		dev_info(dev, "link up\n");
 }
 
 /*
-- 
GitLab


From a8a917058faf4abaec9fb614bb6d5f8fe3529ec6 Mon Sep 17 00:00:00 2001
From: David Hildenbrand <david@redhat.com>
Date: Fri, 19 Nov 2021 16:43:58 -0800
Subject: [PATCH 1772/4878] proc/vmcore: fix clearing user buffer by properly
 using clear_user()

commit c1e63117711977cc4295b2ce73de29dd17066c82 upstream.

To clear a user buffer we cannot simply use memset, we have to use
clear_user().  With a virtio-mem device that registers a vmcore_cb and
has some logically unplugged memory inside an added Linux memory block,
I can easily trigger a BUG by copying the vmcore via "cp":

  systemd[1]: Starting Kdump Vmcore Save Service...
  kdump[420]: Kdump is using the default log level(3).
  kdump[453]: saving to /sysroot/var/crash/127.0.0.1-2021-11-11-14:59:22/
  kdump[458]: saving vmcore-dmesg.txt to /sysroot/var/crash/127.0.0.1-2021-11-11-14:59:22/
  kdump[465]: saving vmcore-dmesg.txt complete
  kdump[467]: saving vmcore
  BUG: unable to handle page fault for address: 00007f2374e01000
  #PF: supervisor write access in kernel mode
  #PF: error_code(0x0003) - permissions violation
  PGD 7a523067 P4D 7a523067 PUD 7a528067 PMD 7a525067 PTE 800000007048f867
  Oops: 0003 [#1] PREEMPT SMP NOPTI
  CPU: 0 PID: 468 Comm: cp Not tainted 5.15.0+ #6
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-27-g64f37cc530f1-prebuilt.qemu.org 04/01/2014
  RIP: 0010:read_from_oldmem.part.0.cold+0x1d/0x86
  Code: ff ff ff e8 05 ff fe ff e9 b9 e9 7f ff 48 89 de 48 c7 c7 38 3b 60 82 e8 f1 fe fe ff 83 fd 08 72 3c 49 8d 7d 08 4c 89 e9 89 e8 <49> c7 45 00 00 00 00 00 49 c7 44 05 f8 00 00 00 00 48 83 e7 f81
  RSP: 0018:ffffc9000073be08 EFLAGS: 00010212
  RAX: 0000000000001000 RBX: 00000000002fd000 RCX: 00007f2374e01000
  RDX: 0000000000000001 RSI: 00000000ffffdfff RDI: 00007f2374e01008
  RBP: 0000000000001000 R08: 0000000000000000 R09: ffffc9000073bc50
  R10: ffffc9000073bc48 R11: ffffffff829461a8 R12: 000000000000f000
  R13: 00007f2374e01000 R14: 0000000000000000 R15: ffff88807bd421e8
  FS:  00007f2374e12140(0000) GS:ffff88807f000000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007f2374e01000 CR3: 000000007a4aa000 CR4: 0000000000350eb0
  Call Trace:
   read_vmcore+0x236/0x2c0
   proc_reg_read+0x55/0xa0
   vfs_read+0x95/0x190
   ksys_read+0x4f/0xc0
   do_syscall_64+0x3b/0x90
   entry_SYSCALL_64_after_hwframe+0x44/0xae

Some x86-64 CPUs have a CPU feature called "Supervisor Mode Access
Prevention (SMAP)", which is used to detect wrong access from the kernel
to user buffers like this: SMAP triggers a permissions violation on
wrong access.  In the x86-64 variant of clear_user(), SMAP is properly
handled via clac()+stac().

To fix, properly use clear_user() when we're dealing with a user buffer.

Link: https://lkml.kernel.org/r/20211112092750.6921-1-david@redhat.com
Fixes: 997c136f518c ("fs/proc/vmcore.c: add hook to read_from_oldmem() to check for non-ram pages")
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Philipp Rudo <prudo@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/proc/vmcore.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index c3a345c28a933..0e4278d4a7691 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -124,9 +124,13 @@ ssize_t read_from_oldmem(char *buf, size_t count,
 			nr_bytes = count;
 
 		/* If pfn is not ram, return zeros for sparse dump files */
-		if (pfn_is_ram(pfn) == 0)
-			memset(buf, 0, nr_bytes);
-		else {
+		if (pfn_is_ram(pfn) == 0) {
+			tmp = 0;
+			if (!userbuf)
+				memset(buf, 0, nr_bytes);
+			else if (clear_user(buf, nr_bytes))
+				tmp = -EFAULT;
+		} else {
 			if (encrypted)
 				tmp = copy_oldmem_page_encrypted(pfn, buf,
 								 nr_bytes,
@@ -135,10 +139,10 @@ ssize_t read_from_oldmem(char *buf, size_t count,
 			else
 				tmp = copy_oldmem_page(pfn, buf, nr_bytes,
 						       offset, userbuf);
-
-			if (tmp < 0)
-				return tmp;
 		}
+		if (tmp < 0)
+			return tmp;
+
 		*ppos += nr_bytes;
 		count -= nr_bytes;
 		buf += nr_bytes;
-- 
GitLab


From a3d829e5f37590b768e2a0bef2f17ee1833ef2e9 Mon Sep 17 00:00:00 2001
From: Florent Fourcot <florent.fourcot@wifirst.fr>
Date: Wed, 3 Nov 2021 23:21:54 +0100
Subject: [PATCH 1773/4878] netfilter: ctnetlink: fix filtering with
 CTA_TUPLE_REPLY

[ Upstream commit ad81d4daf6a3f4769a346e635d5e1e967ca455d9 ]

filter->orig_flags was used for a reply context.

Fixes: cb8aa9a3affb ("netfilter: ctnetlink: add kernel side filtering for dump")
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_conntrack_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index cb4cfa4f61a8d..39e0ff41688a7 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -973,7 +973,7 @@ ctnetlink_alloc_filter(const struct nlattr * const cda[], u8 family)
 						   CTA_TUPLE_REPLY,
 						   filter->family,
 						   &filter->zone,
-						   filter->orig_flags);
+						   filter->reply_flags);
 		if (err < 0) {
 			err = -EINVAL;
 			goto err_filter;
-- 
GitLab


From 994065f6efdcc6edcb5270b2aa0d72746f88705e Mon Sep 17 00:00:00 2001
From: Florent Fourcot <florent.fourcot@wifirst.fr>
Date: Wed, 3 Nov 2021 23:21:55 +0100
Subject: [PATCH 1774/4878] netfilter: ctnetlink: do not erase error code with
 EINVAL

[ Upstream commit 77522ff02f333434612bd72df9b376f8d3836e4d ]

And be consistent in error management for both orig/reply filtering

Fixes: cb8aa9a3affb ("netfilter: ctnetlink: add kernel side filtering for dump")
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_conntrack_netlink.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 39e0ff41688a7..60a1a666e797a 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -974,10 +974,8 @@ ctnetlink_alloc_filter(const struct nlattr * const cda[], u8 family)
 						   filter->family,
 						   &filter->zone,
 						   filter->reply_flags);
-		if (err < 0) {
-			err = -EINVAL;
+		if (err < 0)
 			goto err_filter;
-		}
 	}
 
 	return filter;
-- 
GitLab


From d689176e0e18adf43e57d85b04e41769b4fee3f4 Mon Sep 17 00:00:00 2001
From: yangxingwu <xingwu.yang@gmail.com>
Date: Thu, 4 Nov 2021 03:10:29 +0100
Subject: [PATCH 1775/4878] netfilter: ipvs: Fix reuse connection if RS weight
 is 0

[ Upstream commit c95c07836fa4c1767ed11d8eca0769c652760e32 ]

We are changing expire_nodest_conn to work even for reused connections when
conn_reuse_mode=0, just as what was done with commit dc7b3eb900aa ("ipvs:
Fix reuse connection if real server is dead").

For controlled and persistent connections, the new connection will get the
needed real server depending on the rules in ip_vs_check_template().

Fixes: d752c3645717 ("ipvs: allow rescheduling of new connections when port reuse is detected")
Co-developed-by: Chuanqi Liu <legend050709@qq.com>
Signed-off-by: Chuanqi Liu <legend050709@qq.com>
Signed-off-by: yangxingwu <xingwu.yang@gmail.com>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/networking/ipvs-sysctl.rst | 3 +--
 net/netfilter/ipvs/ip_vs_core.c          | 8 ++++----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/Documentation/networking/ipvs-sysctl.rst b/Documentation/networking/ipvs-sysctl.rst
index 2afccc63856ee..1cfbf1add2fc9 100644
--- a/Documentation/networking/ipvs-sysctl.rst
+++ b/Documentation/networking/ipvs-sysctl.rst
@@ -37,8 +37,7 @@ conn_reuse_mode - INTEGER
 
 	0: disable any special handling on port reuse. The new
 	connection will be delivered to the same real server that was
-	servicing the previous connection. This will effectively
-	disable expire_nodest_conn.
+	servicing the previous connection.
 
 	bit 1: enable rescheduling of new connections when it is safe.
 	That is, whenever expire_nodest_conn and for TCP sockets, when
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index c0b8215ab3d47..3a76da58d88bb 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1976,7 +1976,6 @@ ip_vs_in(struct netns_ipvs *ipvs, unsigned int hooknum, struct sk_buff *skb, int
 	struct ip_vs_proto_data *pd;
 	struct ip_vs_conn *cp;
 	int ret, pkts;
-	int conn_reuse_mode;
 	struct sock *sk;
 
 	/* Already marked as IPVS request or reply? */
@@ -2053,15 +2052,16 @@ ip_vs_in(struct netns_ipvs *ipvs, unsigned int hooknum, struct sk_buff *skb, int
 	cp = INDIRECT_CALL_1(pp->conn_in_get, ip_vs_conn_in_get_proto,
 			     ipvs, af, skb, &iph);
 
-	conn_reuse_mode = sysctl_conn_reuse_mode(ipvs);
-	if (conn_reuse_mode && !iph.fragoffs && is_new_conn(skb, &iph) && cp) {
+	if (!iph.fragoffs && is_new_conn(skb, &iph) && cp) {
+		int conn_reuse_mode = sysctl_conn_reuse_mode(ipvs);
 		bool old_ct = false, resched = false;
 
 		if (unlikely(sysctl_expire_nodest_conn(ipvs)) && cp->dest &&
 		    unlikely(!atomic_read(&cp->dest->weight))) {
 			resched = true;
 			old_ct = ip_vs_conn_uses_old_conntrack(cp, skb);
-		} else if (is_new_conn_expected(cp, conn_reuse_mode)) {
+		} else if (conn_reuse_mode &&
+			   is_new_conn_expected(cp, conn_reuse_mode)) {
 			old_ct = ip_vs_conn_uses_old_conntrack(cp, skb);
 			if (!atomic_read(&cp->n_control)) {
 				resched = true;
-- 
GitLab


From b7ef25e8c27183bb24975a0f35fa2c3a0dd5fe81 Mon Sep 17 00:00:00 2001
From: Will Mortensen <willmo@gmail.com>
Date: Sat, 6 Nov 2021 18:28:21 -0700
Subject: [PATCH 1776/4878] netfilter: flowtable: fix IPv6 tunnel addr match

[ Upstream commit 39f6eed4cb209643f3f8633291854ed7375d7264 ]

Previously the IPv6 addresses in the key were clobbered and the mask was
left unset.

I haven't tested this; I noticed it while skimming the code to
understand an unrelated issue.

Fixes: cfab6dbd0ecf ("netfilter: flowtable: add tunnel match offload support")
Cc: wenxu <wenxu@ucloud.cn>
Signed-off-by: Will Mortensen <willmo@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_flow_table_offload.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index a6b654b028dd4..d1862782be450 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -63,11 +63,11 @@ static void nf_flow_rule_lwt_match(struct nf_flow_match *match,
 		       sizeof(struct in6_addr));
 		if (memcmp(&key->enc_ipv6.src, &in6addr_any,
 			   sizeof(struct in6_addr)))
-			memset(&key->enc_ipv6.src, 0xff,
+			memset(&mask->enc_ipv6.src, 0xff,
 			       sizeof(struct in6_addr));
 		if (memcmp(&key->enc_ipv6.dst, &in6addr_any,
 			   sizeof(struct in6_addr)))
-			memset(&key->enc_ipv6.dst, 0xff,
+			memset(&mask->enc_ipv6.dst, 0xff,
 			       sizeof(struct in6_addr));
 		enc_keys |= BIT(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS);
 		key->enc_control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS;
-- 
GitLab


From b2cd6fdcbe0a5cb44e4610a08cc58261d494a885 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 27 Oct 2021 12:37:29 -0700
Subject: [PATCH 1777/4878] ARM: dts: BCM5301X: Fix I2C controller interrupt

[ Upstream commit 754c4050a00e802e122690112fc2c3a6abafa7e2 ]

The I2C interrupt controller line is off by 32 because the datasheet
describes interrupt inputs into the GIC which are for Shared Peripheral
Interrupts and are starting at offset 32. The ARM GIC binding expects
the SPI interrupts to be numbered from 0 relative to the SPI base.

Fixes: bb097e3e0045 ("ARM: dts: BCM5301X: Add I2C support to the DT")
Tested-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm5301x.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index 72b0df6910bd5..e97a9c0904a98 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -408,7 +408,7 @@
 	i2c0: i2c@18009000 {
 		compatible = "brcm,iproc-i2c";
 		reg = <0x18009000 0x50>;
-		interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
 		#address-cells = <1>;
 		#size-cells = <0>;
 		clock-frequency = <100000>;
-- 
GitLab


From 9db1d4a3c2700e1cc84c3d61199411d75c2a3ec6 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 28 Oct 2021 09:46:53 -0700
Subject: [PATCH 1778/4878] ARM: dts: BCM5301X: Add interrupt properties to
 GPIO node

[ Upstream commit 40f7342f0587639e5ad625adaa15efdd3cffb18f ]

The GPIO controller is also an interrupt controller provider and is
currently missing the appropriate 'interrupt-controller' and
'#interrupt-cells' properties to denote that.

Fixes: fb026d3de33b ("ARM: BCM5301X: Add Broadcom's bus-axi to the DTS file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm5301x.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index e97a9c0904a98..9fdad20c40d17 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -242,6 +242,8 @@
 
 			gpio-controller;
 			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 
 		pcie0: pcie@12000 {
-- 
GitLab


From 2be17eca48aeb86584336308a6823caf5b982b29 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Fri, 29 Oct 2021 14:09:26 -0700
Subject: [PATCH 1779/4878] ARM: dts: bcm2711: Fix PCIe interrupts

[ Upstream commit 98481f3d72fb88cb5b973153434061015f094925 ]

The PCIe host bridge has two interrupt lines, one that goes towards it
PCIE_INTR2 second level interrupt controller and one for its MSI second
level interrupt controller. The first interrupt line is not currently
managed by the driver, which is why it was not a functional problem.

The interrupt-map property was also only listing the PCI_INTA interrupts
when there are also the INTB, C and D.

Reported-by: Jim Quinlan <jim2101024@gmail.com>
Fixes: d5c8dc0d4c88 ("ARM: dts: bcm2711: Enable PCIe controller")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm2711.dtsi | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 398ecd7b9b68b..4ade854bdcdaf 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -480,11 +480,17 @@
 			#address-cells = <3>;
 			#interrupt-cells = <1>;
 			#size-cells = <2>;
-			interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
+			interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "pcie", "msi";
 			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
 			interrupt-map = <0 0 0 1 &gicv2 GIC_SPI 143
+							IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 2 &gicv2 GIC_SPI 144
+							IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 3 &gicv2 GIC_SPI 145
+							IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 4 &gicv2 GIC_SPI 146
 							IRQ_TYPE_LEVEL_HIGH>;
 			msi-controller;
 			msi-parent = <&pcie0>;
-- 
GitLab


From 9196a6858150a309f52c231515a6769dcd43a949 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 16 Nov 2021 11:47:18 +0000
Subject: [PATCH 1780/4878] ASoC: qdsp6: q6routing: Conditionally reset
 FrontEnd Mixer

[ Upstream commit 861afeac7990587588d057b2c0b3222331c3da29 ]

Stream IDs are reused across multiple BackEnd mixers, do not reset the
stream mixers if they are not already set for that particular FrontEnd.

Ex:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1

would set the MultiMedia1 steam for SLIMBUS_0_RX, however doing below
command will reset previously setup MultiMedia1 stream, because both of them
are using MultiMedia1 PCM stream.

amixer cset iface=MIXER,name='SLIMBUS_2_RX Audio Mixer MultiMedia1' 0

reset the FrontEnd Mixers conditionally to fix this issue.

This is more noticeable in desktop setup, where in alsactl tries to restore
the alsa state and overwriting the previous mixer settings.

Fixes: e3a33673e845 ("ASoC: qdsp6: q6routing: Add q6routing driver")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211116114721.12517-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/qcom/qdsp6/q6routing.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c
index 0a6b9433f6acf..934b3f282bccd 100644
--- a/sound/soc/qcom/qdsp6/q6routing.c
+++ b/sound/soc/qcom/qdsp6/q6routing.c
@@ -491,7 +491,11 @@ static int msm_routing_put_audio_mixer(struct snd_kcontrol *kcontrol,
 		session->port_id = be_id;
 		snd_soc_dapm_mixer_update_power(dapm, kcontrol, 1, update);
 	} else {
-		session->port_id = -1;
+		if (session->port_id == be_id) {
+			session->port_id = -1;
+			return 0;
+		}
+
 		snd_soc_dapm_mixer_update_power(dapm, kcontrol, 0, update);
 	}
 
-- 
GitLab


From 4a4f900e0415bfc0d97755882d9bf2ad94421cf8 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 16 Nov 2021 11:47:19 +0000
Subject: [PATCH 1781/4878] ASoC: qdsp6: q6asm: fix q6asm_dai_prepare error
 handling

[ Upstream commit 721a94b4352dc8e47bff90b549a0118c39776756 ]

Error handling in q6asm_dai_prepare() seems to be completely broken,
Fix this by handling it properly.

Fixes: 2a9e92d371db ("ASoC: qdsp6: q6asm: Add q6asm dai driver")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211116114721.12517-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/qcom/qdsp6/q6asm-dai.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c
index 9766725c29166..84cf190aa01a6 100644
--- a/sound/soc/qcom/qdsp6/q6asm-dai.c
+++ b/sound/soc/qcom/qdsp6/q6asm-dai.c
@@ -269,9 +269,7 @@ static int q6asm_dai_prepare(struct snd_soc_component *component,
 
 	if (ret < 0) {
 		dev_err(dev, "%s: q6asm_open_write failed\n", __func__);
-		q6asm_audio_client_free(prtd->audio_client);
-		prtd->audio_client = NULL;
-		return -ENOMEM;
+		goto open_err;
 	}
 
 	prtd->session_id = q6asm_get_session_id(prtd->audio_client);
@@ -279,7 +277,7 @@ static int q6asm_dai_prepare(struct snd_soc_component *component,
 			      prtd->session_id, substream->stream);
 	if (ret) {
 		dev_err(dev, "%s: stream reg failed ret:%d\n", __func__, ret);
-		return ret;
+		goto routing_err;
 	}
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -301,10 +299,19 @@ static int q6asm_dai_prepare(struct snd_soc_component *component,
 	}
 	if (ret < 0)
 		dev_info(dev, "%s: CMD Format block failed\n", __func__);
+	else
+		prtd->state = Q6ASM_STREAM_RUNNING;
 
-	prtd->state = Q6ASM_STREAM_RUNNING;
+	return ret;
 
-	return 0;
+routing_err:
+	q6asm_cmd(prtd->audio_client, prtd->stream_id,  CMD_CLOSE);
+open_err:
+	q6asm_unmap_memory_regions(substream->stream, prtd->audio_client);
+	q6asm_audio_client_free(prtd->audio_client);
+	prtd->audio_client = NULL;
+
+	return ret;
 }
 
 static int q6asm_dai_trigger(struct snd_soc_component *component,
-- 
GitLab


From 3a25def06de8061ade6006e4295fa83c14cee8e8 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 16 Nov 2021 08:18:12 +0100
Subject: [PATCH 1782/4878] ASoC: topology: Add missing rwsem around
 snd_ctl_remove() calls

[ Upstream commit 7e567b5ae06315ef2d70666b149962e2bb4b97af ]

snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation).  This patch add the missing
rwsem calls around it.

Fixes: 8a9782346dcc ("ASoC: topology: Add topology core")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20211116071812.18109-1-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/soc-topology.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 1030e11017b27..4d24ac255d253 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -2873,6 +2873,7 @@ EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
 /* remove dynamic controls from the component driver */
 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 {
+	struct snd_card *card = comp->card->snd_card;
 	struct snd_soc_dobj *dobj, *next_dobj;
 	int pass = SOC_TPLG_PASS_END;
 
@@ -2880,6 +2881,7 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 	while (pass >= SOC_TPLG_PASS_START) {
 
 		/* remove mixer controls */
+		down_write(&card->controls_rwsem);
 		list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
 			list) {
 
@@ -2923,6 +2925,7 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 				break;
 			}
 		}
+		up_write(&card->controls_rwsem);
 		pass--;
 	}
 
-- 
GitLab


From 2925aadd1f324e224e3a5cd4328121286981cc38 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 16 Nov 2021 11:46:22 +0000
Subject: [PATCH 1783/4878] ASoC: codecs: wcd934x: return error code correctly
 from hw_params

[ Upstream commit 006ea27c4e7037369085755c7b5389effa508c04 ]

Error returned from wcd934x_slim_set_hw_params() are not passed to upper layer,
this could be misleading to the user which can start sending stream leading
to unnecessary errors.

Fix this by properly returning the errors.

Fixes: a61f3b4f476e ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211116114623.11891-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/wcd934x.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index d18ae5e3ee809..699b59cd389c0 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -1812,9 +1812,8 @@ static int wcd934x_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	wcd->dai[dai->id].sconfig.rate = params_rate(params);
-	wcd934x_slim_set_hw_params(wcd, &wcd->dai[dai->id], substream->stream);
 
-	return 0;
+	return wcd934x_slim_set_hw_params(wcd, &wcd->dai[dai->id], substream->stream);
 }
 
 static int wcd934x_hw_free(struct snd_pcm_substream *substream,
-- 
GitLab


From 8730a679c3cbfb65f1e65562473dec612a826407 Mon Sep 17 00:00:00 2001
From: Alexander Aring <aahringo@redhat.com>
Date: Thu, 11 Nov 2021 22:09:16 -0500
Subject: [PATCH 1784/4878] net: ieee802154: handle iftypes as u32

[ Upstream commit 451dc48c806a7ce9fbec5e7a24ccf4b2c936e834 ]

This patch fixes an issue that an u32 netlink value is handled as a
signed enum value which doesn't fit into the range of u32 netlink type.
If it's handled as -1 value some BIT() evaluation ends in a
shift-out-of-bounds issue. To solve the issue we set the to u32 max which
is s32 "-1" value to keep backwards compatibility and let the followed enum
values start counting at 0. This brings the compiler to never handle the
enum as signed and a check if the value is above NL802154_IFTYPE_MAX should
filter -1 out.

Fixes: f3ea5e44231a ("ieee802154: add new interface command")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20211112030916.685793-1-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/nl802154.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/net/nl802154.h b/include/net/nl802154.h
index ddcee128f5d9a..145acb8f25095 100644
--- a/include/net/nl802154.h
+++ b/include/net/nl802154.h
@@ -19,6 +19,8 @@
  *
  */
 
+#include <linux/types.h>
+
 #define NL802154_GENL_NAME "nl802154"
 
 enum nl802154_commands {
@@ -150,10 +152,9 @@ enum nl802154_attrs {
 };
 
 enum nl802154_iftype {
-	/* for backwards compatibility TODO */
-	NL802154_IFTYPE_UNSPEC = -1,
+	NL802154_IFTYPE_UNSPEC = (~(__u32)0),
 
-	NL802154_IFTYPE_NODE,
+	NL802154_IFTYPE_NODE = 0,
 	NL802154_IFTYPE_MONITOR,
 	NL802154_IFTYPE_COORD,
 
-- 
GitLab


From c9ba7864d3a2bfaabd9dca31b0ea8e914d3333d5 Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Tue, 16 Nov 2021 14:42:27 +0800
Subject: [PATCH 1785/4878] firmware: arm_scmi: pm: Propagate return value to
 caller

[ Upstream commit 1446fc6c678e8d8b31606a4b877abe205f344b38 ]

of_genpd_add_provider_onecell may return error, so let's propagate
its return value to caller

Link: https://lore.kernel.org/r/20211116064227.20571-1-peng.fan@oss.nxp.com
Fixes: 898216c97ed2 ("firmware: arm_scmi: add device power domain support using genpd")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/arm_scmi/scmi_pm_domain.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/firmware/arm_scmi/scmi_pm_domain.c b/drivers/firmware/arm_scmi/scmi_pm_domain.c
index 9e44479f02842..a4e4aa9a35426 100644
--- a/drivers/firmware/arm_scmi/scmi_pm_domain.c
+++ b/drivers/firmware/arm_scmi/scmi_pm_domain.c
@@ -106,9 +106,7 @@ static int scmi_pm_domain_probe(struct scmi_device *sdev)
 	scmi_pd_data->domains = domains;
 	scmi_pd_data->num_domains = num_domains;
 
-	of_genpd_add_provider_onecell(np, scmi_pd_data);
-
-	return 0;
+	return of_genpd_add_provider_onecell(np, scmi_pd_data);
 }
 
 static const struct scmi_device_id scmi_id_table[] = {
-- 
GitLab


From 86c5adc7808384a504618d912fd4e956cac62cd7 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 16 Nov 2021 09:55:01 -0500
Subject: [PATCH 1786/4878] NFSv42: Don't fail clone() unless the OP_CLONE
 operation failed

[ Upstream commit d3c45824ad65aebf765fcf51366d317a29538820 ]

The failure to retrieve post-op attributes has no bearing on whether or
not the clone operation itself was successful. We must therefore ignore
the return value of decode_getfattr() when looking at the success or
failure of nfs4_xdr_dec_clone().

Fixes: 36022770de6c ("nfs42: add CLONE xdr functions")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs42xdr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index c078f88552695..f2248d9d4db51 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -1396,8 +1396,7 @@ static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp,
 	status = decode_clone(xdr);
 	if (status)
 		goto out;
-	status = decode_getfattr(xdr, res->dst_fattr, res->server);
-
+	decode_getfattr(xdr, res->dst_fattr, res->server);
 out:
 	res->rpc_status = status;
 	return status;
-- 
GitLab


From 0effb7f51b65840bb129f52ddc765105c48c87ba Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 18 Nov 2021 15:25:08 +0100
Subject: [PATCH 1787/4878] ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE

[ Upstream commit 187bea472600dcc8d2eb714335053264dd437172 ]

When CONFIG_FORTIFY_SOURCE is set, memcpy() checks the potential
buffer overflow and panics.  The code in sofcpga bootstrapping
contains the memcpy() calls are mistakenly translated as the shorter
size, hence it triggers a panic as if it were overflowing.

This patch changes the secondary_trampoline and *_end definitions
to arrays for avoiding the false-positive crash above.

Fixes: 9c4566a117a6 ("ARM: socfpga: Enable SMP for socfpga")
Suggested-by: Kees Cook <keescook@chromium.org>
Buglink: https://bugzilla.suse.com/show_bug.cgi?id=1192473
Link: https://lore.kernel.org/r/20211117193244.31162-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-socfpga/core.h    | 2 +-
 arch/arm/mach-socfpga/platsmp.c | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h
index fc2608b18a0d0..18f01190dcfd4 100644
--- a/arch/arm/mach-socfpga/core.h
+++ b/arch/arm/mach-socfpga/core.h
@@ -33,7 +33,7 @@ extern void __iomem *sdr_ctl_base_addr;
 u32 socfpga_sdram_self_refresh(u32 sdr_base);
 extern unsigned int socfpga_sdram_self_refresh_sz;
 
-extern char secondary_trampoline, secondary_trampoline_end;
+extern char secondary_trampoline[], secondary_trampoline_end[];
 
 extern unsigned long socfpga_cpu1start_addr;
 
diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c
index fbb80b883e5dd..201191cf68f32 100644
--- a/arch/arm/mach-socfpga/platsmp.c
+++ b/arch/arm/mach-socfpga/platsmp.c
@@ -20,14 +20,14 @@
 
 static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
+	int trampoline_size = secondary_trampoline_end - secondary_trampoline;
 
 	if (socfpga_cpu1start_addr) {
 		/* This will put CPU #1 into reset. */
 		writel(RSTMGR_MPUMODRST_CPU1,
 		       rst_manager_base_addr + SOCFPGA_RSTMGR_MODMPURST);
 
-		memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
+		memcpy(phys_to_virt(0), secondary_trampoline, trampoline_size);
 
 		writel(__pa_symbol(secondary_startup),
 		       sys_manager_base_addr + (socfpga_cpu1start_addr & 0x000000ff));
@@ -45,12 +45,12 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
 
 static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
+	int trampoline_size = secondary_trampoline_end - secondary_trampoline;
 
 	if (socfpga_cpu1start_addr) {
 		writel(RSTMGR_MPUMODRST_CPU1, rst_manager_base_addr +
 		       SOCFPGA_A10_RSTMGR_MODMPURST);
-		memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
+		memcpy(phys_to_virt(0), secondary_trampoline, trampoline_size);
 
 		writel(__pa_symbol(secondary_startup),
 		       sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
-- 
GitLab


From 29ecb4c0f0d70a5472f6d3b41968caa8063469cd Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 18 Nov 2021 14:13:14 +0300
Subject: [PATCH 1788/4878] drm/nouveau/acr: fix a couple NULL vs IS_ERR()
 checks

[ Upstream commit b371fd131fcec59f6165c80778bdc2cd1abd616b ]

The nvkm_acr_lsfw_add() function never returns NULL.  It returns error
pointers on error.

Fixes: 22dcda45a3d1 ("drm/nouveau/acr: implement new subdev to replace "secure boot"")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211118111314.GB1147@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c | 6 ++++--
 drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
index cd41b2e6cc879..18502fd6ebaa0 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gm200.c
@@ -207,11 +207,13 @@ int
 gm200_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V0_FALCON_ID_INVALID) {
 		wpr_header_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
index 80eb9d8dbc803..e5c8303a5b7b7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/gp102.c
@@ -161,11 +161,13 @@ int
 gp102_acr_wpr_parse(struct nvkm_acr *acr)
 {
 	const struct wpr_header_v1 *hdr = (void *)acr->wpr_fw->data;
+	struct nvkm_acr_lsfw *lsfw;
 
 	while (hdr->falcon_id != WPR_HEADER_V1_FALCON_ID_INVALID) {
 		wpr_header_v1_dump(&acr->subdev, hdr);
-		if (!nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id))
-			return -ENOMEM;
+		lsfw = nvkm_acr_lsfw_add(NULL, acr, NULL, (hdr++)->falcon_id);
+		if (IS_ERR(lsfw))
+			return PTR_ERR(lsfw);
 	}
 
 	return 0;
-- 
GitLab


From 2bf9c5a5039c8f4b037236aed505e6a25c1d5f7b Mon Sep 17 00:00:00 2001
From: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Date: Wed, 17 Nov 2021 16:19:09 +0530
Subject: [PATCH 1789/4878] scsi: mpt3sas: Fix kernel panic during drive
 powercycle test

[ Upstream commit 0ee4ba13e09c9d9c1cb6abb59da8295d9952328b ]

While looping over shost's sdev list it is possible that one
of the drives is getting removed and its sas_target object is
freed but its sdev object remains intact.

Consequently, a kernel panic can occur while the driver is trying to access
the sas_address field of sas_target object without also checking the
sas_target object for NULL.

Link: https://lore.kernel.org/r/20211117104909.2069-1-sreekanth.reddy@broadcom.com
Fixes: f92363d12359 ("[SCSI] mpt3sas: add new driver supporting 12GB SAS")
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 31c384108bc9c..8418b59b3743b 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -3675,7 +3675,7 @@ _scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
 
 	shost_for_each_device(sdev, ioc->shost) {
 		sas_device_priv_data = sdev->hostdata;
-		if (!sas_device_priv_data)
+		if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
 			continue;
 		if (sas_device_priv_data->sas_target->sas_address
 		    != sas_address)
-- 
GitLab


From b33c5c828144bb6794be72689ed8abd9f69a2e35 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 18 Nov 2021 14:14:16 +0300
Subject: [PATCH 1790/4878] drm/vc4: fix error code in vc4_create_object()

[ Upstream commit 96c5f82ef0a145d3e56e5b26f2bf6dcd2ffeae1c ]

The ->gem_create_object() functions are supposed to return NULL if there
is an error.  None of the callers expect error pointers so returing one
will lead to an Oops.  See drm_gem_vram_create(), for example.

Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211118111416.GC1147@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vc4/vc4_bo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
index cc74a3f3a07af..9006b9861c90c 100644
--- a/drivers/gpu/drm/vc4/vc4_bo.c
+++ b/drivers/gpu/drm/vc4/vc4_bo.c
@@ -389,7 +389,7 @@ struct drm_gem_object *vc4_create_object(struct drm_device *dev, size_t size)
 
 	bo = kzalloc(sizeof(*bo), GFP_KERNEL);
 	if (!bo)
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 
 	bo->madv = VC4_MADV_WILLNEED;
 	refcount_set(&bo->usecnt, 0);
-- 
GitLab


From 5dca8eff4627315df98feec09fff9dfe3356325e Mon Sep 17 00:00:00 2001
From: Volodymyr Mytnyk <vmytnyk@marvell.com>
Date: Thu, 18 Nov 2021 21:51:40 +0200
Subject: [PATCH 1791/4878] net: marvell: prestera: fix double free issue on
 err path

[ Upstream commit e8d032507cb7912baf1d3e0af54516f823befefd ]

fix error path handling in prestera_bridge_port_join() that
cases prestera driver to crash (see below).

 Trace:
   Internal error: Oops: 96000044 [#1] SMP
   Modules linked in: prestera_pci prestera uio_pdrv_genirq
   CPU: 1 PID: 881 Comm: ip Not tainted 5.15.0 #1
   pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
   pc : prestera_bridge_destroy+0x2c/0xb0 [prestera]
   lr : prestera_bridge_port_join+0x2cc/0x350 [prestera]
   sp : ffff800011a1b0f0
   ...
   x2 : ffff000109ca6c80 x1 : dead000000000100 x0 : dead000000000122
    Call trace:
   prestera_bridge_destroy+0x2c/0xb0 [prestera]
   prestera_bridge_port_join+0x2cc/0x350 [prestera]
   prestera_netdev_port_event.constprop.0+0x3c4/0x450 [prestera]
   prestera_netdev_event_handler+0xf4/0x110 [prestera]
   raw_notifier_call_chain+0x54/0x80
   call_netdevice_notifiers_info+0x54/0xa0
   __netdev_upper_dev_link+0x19c/0x380

Fixes: e1189d9a5fbe ("net: marvell: prestera: Add Switchdev driver implementation")
Signed-off-by: Volodymyr Mytnyk <vmytnyk@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/marvell/prestera/prestera_switchdev.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
index 7d83e1f91ef17..9101d00e96b9d 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
@@ -439,8 +439,8 @@ static int prestera_port_bridge_join(struct prestera_port *port,
 
 	br_port = prestera_bridge_port_add(bridge, port->dev);
 	if (IS_ERR(br_port)) {
-		err = PTR_ERR(br_port);
-		goto err_brport_create;
+		prestera_bridge_put(bridge);
+		return PTR_ERR(br_port);
 	}
 
 	if (bridge->vlan_enabled)
@@ -454,8 +454,6 @@ static int prestera_port_bridge_join(struct prestera_port *port,
 
 err_port_join:
 	prestera_bridge_port_put(br_port);
-err_brport_create:
-	prestera_bridge_put(bridge);
 	return err;
 }
 
-- 
GitLab


From f5af2def7e05cbf739701f2c240b3267a03d76c0 Mon Sep 17 00:00:00 2001
From: Nitesh B Venkatesh <nitesh.b.venkatesh@intel.com>
Date: Fri, 4 Jun 2021 09:53:31 -0700
Subject: [PATCH 1792/4878] iavf: Prevent changing static ITR values if
 adaptive moderation is on

[ Upstream commit e792779e6b639c182df91b46ac1e5803460b0b15 ]

Resolve being able to change static values on VF when adaptive interrupt
moderation is enabled.

This problem is fixed by checking the interrupt settings is not
a combination of change of static value while adaptive interrupt
moderation is turned on.

Without this fix, the user would be able to change static values
on VF with adaptive moderation enabled.

Fixes: 65e87c0398f5 ("i40evf: support queue-specific settings for interrupt moderation")
Signed-off-by: Nitesh B Venkatesh <nitesh.b.venkatesh@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/intel/iavf/iavf_ethtool.c    | 30 ++++++++++++++++---
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index ea85b06857fa2..90f5ec982d513 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -719,12 +719,31 @@ static int iavf_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
  *
  * Change the ITR settings for a specific queue.
  **/
-static void iavf_set_itr_per_queue(struct iavf_adapter *adapter,
-				   struct ethtool_coalesce *ec, int queue)
+static int iavf_set_itr_per_queue(struct iavf_adapter *adapter,
+				  struct ethtool_coalesce *ec, int queue)
 {
 	struct iavf_ring *rx_ring = &adapter->rx_rings[queue];
 	struct iavf_ring *tx_ring = &adapter->tx_rings[queue];
 	struct iavf_q_vector *q_vector;
+	u16 itr_setting;
+
+	itr_setting = rx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;
+
+	if (ec->rx_coalesce_usecs != itr_setting &&
+	    ec->use_adaptive_rx_coalesce) {
+		netif_info(adapter, drv, adapter->netdev,
+			   "Rx interrupt throttling cannot be changed if adaptive-rx is enabled\n");
+		return -EINVAL;
+	}
+
+	itr_setting = tx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;
+
+	if (ec->tx_coalesce_usecs != itr_setting &&
+	    ec->use_adaptive_tx_coalesce) {
+		netif_info(adapter, drv, adapter->netdev,
+			   "Tx interrupt throttling cannot be changed if adaptive-tx is enabled\n");
+		return -EINVAL;
+	}
 
 	rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
 	tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
@@ -747,6 +766,7 @@ static void iavf_set_itr_per_queue(struct iavf_adapter *adapter,
 	 * the Tx and Rx ITR values based on the values we have entered
 	 * into the q_vector, no need to write the values now.
 	 */
+	return 0;
 }
 
 /**
@@ -788,9 +808,11 @@ static int __iavf_set_coalesce(struct net_device *netdev,
 	 */
 	if (queue < 0) {
 		for (i = 0; i < adapter->num_active_queues; i++)
-			iavf_set_itr_per_queue(adapter, ec, i);
+			if (iavf_set_itr_per_queue(adapter, ec, i))
+				return -EINVAL;
 	} else if (queue < adapter->num_active_queues) {
-		iavf_set_itr_per_queue(adapter, ec, queue);
+		if (iavf_set_itr_per_queue(adapter, ec, queue))
+			return -EINVAL;
 	} else {
 		netif_info(adapter, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
 			   adapter->num_active_queues - 1);
-- 
GitLab


From 061542815af1a217486d715aaae35726f8c8af5b Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Wed, 27 Oct 2021 10:32:54 +0800
Subject: [PATCH 1793/4878] ALSA: intel-dsp-config: add quirk for JSL devices
 based on ES8336 codec

[ Upstream commit fa9730b4f28b7bd183d28a0bf636ab7108de35d7 ]

These devices are based on an I2C/I2S device, we need to force the use
of the SOF driver otherwise the legacy HDaudio driver will be loaded -
only HDMI will be supported.

We previously added support for other Intel platforms but missed
JasperLake.

BugLink: https://github.com/thesofproject/linux/issues/3210
Fixes: 9d36ceab9415 ('ALSA: intel-dsp-config: add quirk for APL/GLK/TGL devices based on ES8336 codec')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20211027023254.24955-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/intel-dsp-config.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index 6cdb3db7507b1..fc61571a3ac73 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -298,6 +298,15 @@ static const struct config_entry config_table[] = {
 	},
 #endif
 
+/* JasperLake */
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
+	{
+		.flags = FLAG_SOF,
+		.device = 0x4dc8,
+		.codec_hid = "ESSX8336",
+	},
+#endif
+
 /* Tigerlake */
 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
 	{
-- 
GitLab


From bbd1683e795cec80acc2e5107c3d29b9c3f49297 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 19 Nov 2021 15:27:54 +0100
Subject: [PATCH 1794/4878] mptcp: fix delack timer

[ Upstream commit ee50e67ba0e17b1a1a8d76691d02eadf9e0f392c ]

To compute the rtx timeout schedule_3rdack_retransmission() does multiple
things in the wrong way: srtt_us is measured in usec/8 and the timeout
itself is an absolute value.

Fixes: ec3edaa7ca6ce02f ("mptcp: Add handling of outgoing MP_JOIN requests")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <mathew.j.martineau>@linux.intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mptcp/options.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index ac0233c9cd349..64afe71e2129a 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -368,9 +368,10 @@ static void schedule_3rdack_retransmission(struct sock *sk)
 
 	/* reschedule with a timeout above RTT, as we must look only for drop */
 	if (tp->srtt_us)
-		timeout = tp->srtt_us << 1;
+		timeout = usecs_to_jiffies(tp->srtt_us >> (3 - 1));
 	else
 		timeout = TCP_TIMEOUT_INIT;
+	timeout += jiffies;
 
 	WARN_ON_ONCE(icsk->icsk_ack.pending & ICSK_ACK_TIMER);
 	icsk->icsk_ack.pending |= ICSK_ACK_SCHED | ICSK_ACK_TIMER;
-- 
GitLab


From 6d9e8dabd46faa2fdf5cc3c78b493a63de994340 Mon Sep 17 00:00:00 2001
From: Michael Kelley <mikelley@microsoft.com>
Date: Fri, 19 Nov 2021 15:39:01 -0800
Subject: [PATCH 1795/4878] firmware: smccc: Fix check for ARCH_SOC_ID not
 implemented

[ Upstream commit e95d8eaee21cd0d117d34125d4cdc97489c1ab82 ]

The ARCH_FEATURES function ID is a 32-bit SMC call, which returns
a 32-bit result per the SMCCC spec.  Current code is doing a 64-bit
comparison against -1 (SMCCC_RET_NOT_SUPPORTED) to detect that the
feature is unimplemented.  That check doesn't work in a Hyper-V VM,
where the upper 32-bits are zero as allowed by the spec.

Cast the result as an 'int' so the comparison works. The change also
makes the code consistent with other similar checks in this file.

Fixes: 821b67fa4639 ("firmware: smccc: Add ARCH_SOC_ID support")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/smccc/soc_id.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/smccc/soc_id.c b/drivers/firmware/smccc/soc_id.c
index 581aa5e9b0778..dd7c3d5e8b0bb 100644
--- a/drivers/firmware/smccc/soc_id.c
+++ b/drivers/firmware/smccc/soc_id.c
@@ -50,7 +50,7 @@ static int __init smccc_soc_init(void)
 	arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
 			     ARM_SMCCC_ARCH_SOC_ID, &res);
 
-	if (res.a0 == SMCCC_RET_NOT_SUPPORTED) {
+	if ((int)res.a0 == SMCCC_RET_NOT_SUPPORTED) {
 		pr_info("ARCH_SOC_ID not implemented, skipping ....\n");
 		return 0;
 	}
-- 
GitLab


From 9b44cb67d387f08a99aee702c4cd54e587c6ba91 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 18 Nov 2021 17:37:58 -0800
Subject: [PATCH 1796/4878] ipv6: fix typos in __ip6_finish_output()

[ Upstream commit 19d36c5f294879949c9d6f57cb61d39cc4c48553 ]

We deal with IPv6 packets, so we need to use IP6CB(skb)->flags and
IP6SKB_REROUTED, instead of IPCB(skb)->flags and IPSKB_REROUTED

Found by code inspection, please double check that fixing this bug
does not surface other bugs.

Fixes: 09ee9dba9611 ("ipv6: Reinject IPv6 packets if IPsec policy matches after SNAT")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tobias Brunner <tobias@strongswan.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Tested-by: Tobias Brunner <tobias@strongswan.org>
Acked-by: Tobias Brunner <tobias@strongswan.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/ip6_output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index c2f8e69d7d7a0..54cabf1c2ae15 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -193,7 +193,7 @@ static int __ip6_finish_output(struct net *net, struct sock *sk, struct sk_buff
 #if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
 	/* Policy lookup after SNAT yielded a new policy */
 	if (skb_dst(skb)->xfrm) {
-		IPCB(skb)->flags |= IPSKB_REROUTED;
+		IP6CB(skb)->flags |= IP6SKB_REROUTED;
 		return dst_output(net, sk, skb);
 	}
 #endif
-- 
GitLab


From cc301ad3120719b850d2adfa8bd0bdae08894c09 Mon Sep 17 00:00:00 2001
From: Diana Wang <na.wang@corigine.com>
Date: Fri, 19 Nov 2021 14:38:03 +0100
Subject: [PATCH 1797/4878] nfp: checking parameter process for
 rx-usecs/tx-usecs is invalid

[ Upstream commit 3bd6b2a838ba6a3b86d41b077f570b1b61174def ]

Use nn->tlv_caps.me_freq_mhz instead of nn->me_freq_mhz to check whether
rx-usecs/tx-usecs is valid.

This is because nn->tlv_caps.me_freq_mhz represents the clock_freq (MHz) of
the flow processing cores (FPC) on the NIC. While nn->me_freq_mhz is not
be set.

Fixes: ce991ab6662a ("nfp: read ME frequency from vNIC ctrl memory")
Signed-off-by: Diana Wang <na.wang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/netronome/nfp/nfp_net.h         | 3 ---
 drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net.h b/drivers/net/ethernet/netronome/nfp/nfp_net.h
index df5b748be068c..cc2ce452000a3 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net.h
@@ -557,7 +557,6 @@ struct nfp_net_dp {
  * @exn_name:           Name for Exception interrupt
  * @shared_handler:     Handler for shared interrupts
  * @shared_name:        Name for shared interrupt
- * @me_freq_mhz:        ME clock_freq (MHz)
  * @reconfig_lock:	Protects @reconfig_posted, @reconfig_timer_active,
  *			@reconfig_sync_present and HW reconfiguration request
  *			regs/machinery from async requests (sync must take
@@ -640,8 +639,6 @@ struct nfp_net {
 	irq_handler_t shared_handler;
 	char shared_name[IFNAMSIZ + 8];
 
-	u32 me_freq_mhz;
-
 	bool link_up;
 	spinlock_t link_status_lock;
 
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index c036a1d0f8de6..cd0c9623f7dd2 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -1347,7 +1347,7 @@ static int nfp_net_set_coalesce(struct net_device *netdev,
 	 * ME timestamp ticks.  There are 16 ME clock cycles for each timestamp
 	 * count.
 	 */
-	factor = nn->me_freq_mhz / 16;
+	factor = nn->tlv_caps.me_freq_mhz / 16;
 
 	/* Each pair of (usecs, max_frames) fields specifies that interrupts
 	 * should be coalesced until
-- 
GitLab


From 79068e6b1cfba1a03e1016c2ccc520a27c351914 Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Wed, 8 Sep 2021 15:43:35 +0800
Subject: [PATCH 1798/4878] net: stmmac: fix system hang caused by
 eee_ctrl_timer during suspend/resume

[ Upstream commit 276aae377206d60b9b7b7df4586cd9f2a813f5d0 ]

commit 5f58591323bf ("net: stmmac: delete the eee_ctrl_timer after
napi disabled"), this patch tries to fix system hang caused by eee_ctrl_timer,
unfortunately, it only can resolve it for system reboot stress test. System
hang also can be reproduced easily during system suspend/resume stess test
when mount NFS on i.MX8MP EVK board.

In stmmac driver, eee feature is combined to phylink framework. When do
system suspend, phylink_stop() would queue delayed work, it invokes
stmmac_mac_link_down(), where to deactivate eee_ctrl_timer synchronizly.
In above commit, try to fix issue by deactivating eee_ctrl_timer obviously,
but it is not enough. Looking into eee_ctrl_timer expire callback
stmmac_eee_ctrl_timer(), it could enable hareware eee mode again. What is
unexpected is that LPI interrupt (MAC_Interrupt_Enable.LPIEN bit) is always
asserted. This interrupt has chance to be issued when LPI state entry/exit
from the MAC, and at that time, clock could have been already disabled.
The result is that system hang when driver try to touch register from
interrupt handler.

The reason why above commit can fix system hang issue in stmmac_release()
is that, deactivate eee_ctrl_timer not just after napi disabled, further
after irq freed.

In conclusion, hardware would generate LPI interrupt when clock has been
disabled during suspend or resume, since hardware is in eee mode and LPI
interrupt enabled.

Interrupts from MAC, MTL and DMA level are enabled and never been disabled
when system suspend, so postpone clocks management from suspend stage to
noirq suspend stage should be more safe.

Fixes: 5f58591323bf ("net: stmmac: delete the eee_ctrl_timer after napi disabled")
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/stmicro/stmmac/stmmac_main.c | 14 ------
 .../ethernet/stmicro/stmmac/stmmac_platform.c | 44 +++++++++++++++++++
 2 files changed, 44 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 4a75e73f06bbd..b6a2bc020026a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5238,7 +5238,6 @@ int stmmac_suspend(struct device *dev)
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	u32 chan;
-	int ret;
 
 	if (!ndev || !netif_running(ndev))
 		return 0;
@@ -5280,13 +5279,6 @@ int stmmac_suspend(struct device *dev)
 
 		stmmac_mac_set(priv, priv->ioaddr, false);
 		pinctrl_pm_select_sleep_state(priv->device);
-		/* Disable clock in case of PWM is off */
-		clk_disable_unprepare(priv->plat->clk_ptp_ref);
-		ret = pm_runtime_force_suspend(dev);
-		if (ret) {
-			mutex_unlock(&priv->lock);
-			return ret;
-		}
 	}
 	mutex_unlock(&priv->lock);
 
@@ -5351,12 +5343,6 @@ int stmmac_resume(struct device *dev)
 		priv->irq_wake = 0;
 	} else {
 		pinctrl_pm_select_default_state(priv->device);
-		/* enable the clk previously disabled */
-		ret = pm_runtime_force_resume(dev);
-		if (ret)
-			return ret;
-		if (priv->plat->clk_ptp_ref)
-			clk_prepare_enable(priv->plat->clk_ptp_ref);
 		/* reset the phy so that it's ready */
 		if (priv->mii)
 			stmmac_mdio_reset(priv->mii);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 035f9aef4308f..5c9d29c42bac8 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -9,6 +9,7 @@
 *******************************************************************************/
 
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/of.h>
@@ -778,9 +779,52 @@ static int __maybe_unused stmmac_runtime_resume(struct device *dev)
 	return stmmac_bus_clks_config(priv, true);
 }
 
+static int stmmac_pltfr_noirq_suspend(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+	int ret;
+
+	if (!netif_running(ndev))
+		return 0;
+
+	if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+		/* Disable clock in case of PWM is off */
+		clk_disable_unprepare(priv->plat->clk_ptp_ref);
+
+		ret = pm_runtime_force_suspend(dev);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int stmmac_pltfr_noirq_resume(struct device *dev)
+{
+	struct net_device *ndev = dev_get_drvdata(dev);
+	struct stmmac_priv *priv = netdev_priv(ndev);
+	int ret;
+
+	if (!netif_running(ndev))
+		return 0;
+
+	if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+		/* enable the clk previously disabled */
+		ret = pm_runtime_force_resume(dev);
+		if (ret)
+			return ret;
+
+		clk_prepare_enable(priv->plat->clk_ptp_ref);
+	}
+
+	return 0;
+}
+
 const struct dev_pm_ops stmmac_pltfr_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_suspend, stmmac_pltfr_resume)
 	SET_RUNTIME_PM_OPS(stmmac_runtime_suspend, stmmac_runtime_resume, NULL)
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stmmac_pltfr_noirq_suspend, stmmac_pltfr_noirq_resume)
 };
 EXPORT_SYMBOL_GPL(stmmac_pltfr_pm_ops);
 
-- 
GitLab


From dc2f7e9d8d20c0c407054596509e3d4316e2c9f3 Mon Sep 17 00:00:00 2001
From: Holger Assmann <h.assmann@pengutronix.de>
Date: Sun, 21 Nov 2021 19:57:04 +0200
Subject: [PATCH 1799/4878] net: stmmac: retain PTP clock time during
 SIOCSHWTSTAMP ioctls

[ Upstream commit a6da2bbb0005e6b4909472962c9d0af29e75dd06 ]

Currently, when user space emits SIOCSHWTSTAMP ioctl calls such as
enabling/disabling timestamping or changing filter settings, the driver
reads the current CLOCK_REALTIME value and programming this into the
NIC's hardware clock. This might be necessary during system
initialization, but at runtime, when the PTP clock has already been
synchronized to a grandmaster, a reset of the timestamp settings might
result in a clock jump. Furthermore, if the clock is also controlled by
phc2sys in automatic mode (where the UTC offset is queried from ptp4l),
that UTC-to-TAI offset (currently 37 seconds in 2021) would be
temporarily reset to 0, and it would take a long time for phc2sys to
readjust so that CLOCK_REALTIME and the PHC are apart by 37 seconds
again.

To address the issue, we introduce a new function called
stmmac_init_tstamp_counter(), which gets called during ndo_open().
It contains the code snippet moved from stmmac_hwtstamp_set() that
manages the time synchronization. Besides, the sub second increment
configuration is also moved here since the related values are hardware
dependent and runtime invariant.

Furthermore, the hardware clock must be kept running even when no time
stamping mode is selected in order to retain the synchronized time base.
That way, timestamping can be enabled again at any time only with the
need to compensate the clock's natural drifting.

As a side effect, this patch fixes the issue that ptp_clock_info::enable
can be called before SIOCSHWTSTAMP and the driver (which looks at
priv->systime_flags) was not prepared to handle that ordering.

Fixes: 92ba6888510c ("stmmac: add the support for PTP hw clock driver")
Reported-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Holger Assmann <h.assmann@pengutronix.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac.h  |   1 +
 .../net/ethernet/stmicro/stmmac/stmmac_main.c | 125 +++++++++++-------
 .../ethernet/stmicro/stmmac/stmmac_platform.c |   2 +-
 3 files changed, 81 insertions(+), 47 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index a4ca283e02284..617c960cfb5a5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -258,6 +258,7 @@ int stmmac_mdio_register(struct net_device *ndev);
 int stmmac_mdio_reset(struct mii_bus *mii);
 void stmmac_set_ethtool_ops(struct net_device *netdev);
 
+int stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 systime_flags);
 void stmmac_ptp_register(struct stmmac_priv *priv);
 void stmmac_ptp_unregister(struct stmmac_priv *priv);
 int stmmac_resume(struct device *dev);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index b6a2bc020026a..a8c5492cb39be 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -47,6 +47,13 @@
 #include "dwxgmac2.h"
 #include "hwif.h"
 
+/* As long as the interface is active, we keep the timestamping counter enabled
+ * with fine resolution and binary rollover. This avoid non-monotonic behavior
+ * (clock jumps) when changing timestamping settings at runtime.
+ */
+#define STMMAC_HWTS_ACTIVE	(PTP_TCR_TSENA | PTP_TCR_TSCFUPDT | \
+				 PTP_TCR_TSCTRLSSR)
+
 #define	STMMAC_ALIGN(x)		ALIGN(ALIGN(x, SMP_CACHE_BYTES), 16)
 #define	TSO_MAX_BUFF_SIZE	(SZ_16K - 1)
 
@@ -508,8 +515,6 @@ static int stmmac_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 	struct hwtstamp_config config;
-	struct timespec64 now;
-	u64 temp = 0;
 	u32 ptp_v2 = 0;
 	u32 tstamp_all = 0;
 	u32 ptp_over_ipv4_udp = 0;
@@ -518,11 +523,6 @@ static int stmmac_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
 	u32 snap_type_sel = 0;
 	u32 ts_master_en = 0;
 	u32 ts_event_en = 0;
-	u32 sec_inc = 0;
-	u32 value = 0;
-	bool xmac;
-
-	xmac = priv->plat->has_gmac4 || priv->plat->has_xgmac;
 
 	if (!(priv->dma_cap.time_stamp || priv->adv_ts)) {
 		netdev_alert(priv->dev, "No support for HW time stamping\n");
@@ -684,42 +684,17 @@ static int stmmac_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
 	priv->hwts_rx_en = ((config.rx_filter == HWTSTAMP_FILTER_NONE) ? 0 : 1);
 	priv->hwts_tx_en = config.tx_type == HWTSTAMP_TX_ON;
 
-	if (!priv->hwts_tx_en && !priv->hwts_rx_en)
-		stmmac_config_hw_tstamping(priv, priv->ptpaddr, 0);
-	else {
-		value = (PTP_TCR_TSENA | PTP_TCR_TSCFUPDT | PTP_TCR_TSCTRLSSR |
-			 tstamp_all | ptp_v2 | ptp_over_ethernet |
-			 ptp_over_ipv6_udp | ptp_over_ipv4_udp | ts_event_en |
-			 ts_master_en | snap_type_sel);
-		stmmac_config_hw_tstamping(priv, priv->ptpaddr, value);
-
-		/* program Sub Second Increment reg */
-		stmmac_config_sub_second_increment(priv,
-				priv->ptpaddr, priv->plat->clk_ptp_rate,
-				xmac, &sec_inc);
-		temp = div_u64(1000000000ULL, sec_inc);
-
-		/* Store sub second increment and flags for later use */
-		priv->sub_second_inc = sec_inc;
-		priv->systime_flags = value;
-
-		/* calculate default added value:
-		 * formula is :
-		 * addend = (2^32)/freq_div_ratio;
-		 * where, freq_div_ratio = 1e9ns/sec_inc
-		 */
-		temp = (u64)(temp << 32);
-		priv->default_addend = div_u64(temp, priv->plat->clk_ptp_rate);
-		stmmac_config_addend(priv, priv->ptpaddr, priv->default_addend);
-
-		/* initialize system time */
-		ktime_get_real_ts64(&now);
+	priv->systime_flags = STMMAC_HWTS_ACTIVE;
 
-		/* lower 32 bits of tv_sec are safe until y2106 */
-		stmmac_init_systime(priv, priv->ptpaddr,
-				(u32)now.tv_sec, now.tv_nsec);
+	if (priv->hwts_tx_en || priv->hwts_rx_en) {
+		priv->systime_flags |= tstamp_all | ptp_v2 |
+				       ptp_over_ethernet | ptp_over_ipv6_udp |
+				       ptp_over_ipv4_udp | ts_event_en |
+				       ts_master_en | snap_type_sel;
 	}
 
+	stmmac_config_hw_tstamping(priv, priv->ptpaddr, priv->systime_flags);
+
 	memcpy(&priv->tstamp_config, &config, sizeof(config));
 
 	return copy_to_user(ifr->ifr_data, &config,
@@ -747,6 +722,66 @@ static int stmmac_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
 			    sizeof(*config)) ? -EFAULT : 0;
 }
 
+/**
+ * stmmac_init_tstamp_counter - init hardware timestamping counter
+ * @priv: driver private structure
+ * @systime_flags: timestamping flags
+ * Description:
+ * Initialize hardware counter for packet timestamping.
+ * This is valid as long as the interface is open and not suspended.
+ * Will be rerun after resuming from suspend, case in which the timestamping
+ * flags updated by stmmac_hwtstamp_set() also need to be restored.
+ */
+int stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 systime_flags)
+{
+	bool xmac = priv->plat->has_gmac4 || priv->plat->has_xgmac;
+	struct timespec64 now;
+	u32 sec_inc = 0;
+	u64 temp = 0;
+	int ret;
+
+	if (!(priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp))
+		return -EOPNOTSUPP;
+
+	ret = clk_prepare_enable(priv->plat->clk_ptp_ref);
+	if (ret < 0) {
+		netdev_warn(priv->dev,
+			    "failed to enable PTP reference clock: %pe\n",
+			    ERR_PTR(ret));
+		return ret;
+	}
+
+	stmmac_config_hw_tstamping(priv, priv->ptpaddr, systime_flags);
+	priv->systime_flags = systime_flags;
+
+	/* program Sub Second Increment reg */
+	stmmac_config_sub_second_increment(priv, priv->ptpaddr,
+					   priv->plat->clk_ptp_rate,
+					   xmac, &sec_inc);
+	temp = div_u64(1000000000ULL, sec_inc);
+
+	/* Store sub second increment for later use */
+	priv->sub_second_inc = sec_inc;
+
+	/* calculate default added value:
+	 * formula is :
+	 * addend = (2^32)/freq_div_ratio;
+	 * where, freq_div_ratio = 1e9ns/sec_inc
+	 */
+	temp = (u64)(temp << 32);
+	priv->default_addend = div_u64(temp, priv->plat->clk_ptp_rate);
+	stmmac_config_addend(priv, priv->ptpaddr, priv->default_addend);
+
+	/* initialize system time */
+	ktime_get_real_ts64(&now);
+
+	/* lower 32 bits of tv_sec are safe until y2106 */
+	stmmac_init_systime(priv, priv->ptpaddr, (u32)now.tv_sec, now.tv_nsec);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(stmmac_init_tstamp_counter);
+
 /**
  * stmmac_init_ptp - init PTP
  * @priv: driver private structure
@@ -757,9 +792,11 @@ static int stmmac_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
 static int stmmac_init_ptp(struct stmmac_priv *priv)
 {
 	bool xmac = priv->plat->has_gmac4 || priv->plat->has_xgmac;
+	int ret;
 
-	if (!(priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp))
-		return -EOPNOTSUPP;
+	ret = stmmac_init_tstamp_counter(priv, STMMAC_HWTS_ACTIVE);
+	if (ret)
+		return ret;
 
 	priv->adv_ts = 0;
 	/* Check if adv_ts can be enabled for dwmac 4.x / xgmac core */
@@ -2721,10 +2758,6 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
 	stmmac_mmc_setup(priv);
 
 	if (init_ptp) {
-		ret = clk_prepare_enable(priv->plat->clk_ptp_ref);
-		if (ret < 0)
-			netdev_warn(priv->dev, "failed to enable PTP reference clock: %d\n", ret);
-
 		ret = stmmac_init_ptp(priv);
 		if (ret == -EOPNOTSUPP)
 			netdev_warn(priv->dev, "PTP not supported by HW\n");
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 5c9d29c42bac8..4387752b26d95 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -815,7 +815,7 @@ static int stmmac_pltfr_noirq_resume(struct device *dev)
 		if (ret)
 			return ret;
 
-		clk_prepare_enable(priv->plat->clk_ptp_ref);
+		stmmac_init_tstamp_counter(priv, priv->systime_flags);
 	}
 
 	return 0;
-- 
GitLab


From 3c40584595f8175d5fd8acaac30479e16eeb8a82 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@nvidia.com>
Date: Mon, 22 Nov 2021 17:15:12 +0200
Subject: [PATCH 1800/4878] net: ipv6: add fib6_nh_release_dsts stub

[ Upstream commit 8837cbbf854246f5f4d565f21e6baa945d37aded ]

We need a way to release a fib6_nh's per-cpu dsts when replacing
nexthops otherwise we can end up with stale per-cpu dsts which hold net
device references, so add a new IPv6 stub called fib6_nh_release_dsts.
It must be used after an RCU grace period, so no new dsts can be created
through a group's nexthop entry.
Similar to fib6_nh_release it shouldn't be used if fib6_nh_init has failed
so it doesn't need a dummy stub when IPv6 is not enabled.

Fixes: 7bf4796dd099 ("nexthops: add support for replace")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/ip6_fib.h    |  1 +
 include/net/ipv6_stubs.h |  1 +
 net/ipv6/af_inet6.c      |  1 +
 net/ipv6/route.c         | 19 +++++++++++++++++++
 4 files changed, 22 insertions(+)

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index ac5ff3c3afb14..88bc66b8d02b0 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -491,6 +491,7 @@ int fib6_nh_init(struct net *net, struct fib6_nh *fib6_nh,
 		 struct fib6_config *cfg, gfp_t gfp_flags,
 		 struct netlink_ext_ack *extack);
 void fib6_nh_release(struct fib6_nh *fib6_nh);
+void fib6_nh_release_dsts(struct fib6_nh *fib6_nh);
 
 int call_fib6_entry_notifiers(struct net *net,
 			      enum fib_event_type event_type,
diff --git a/include/net/ipv6_stubs.h b/include/net/ipv6_stubs.h
index 8fce558b5fea3..14a43111ffc6a 100644
--- a/include/net/ipv6_stubs.h
+++ b/include/net/ipv6_stubs.h
@@ -47,6 +47,7 @@ struct ipv6_stub {
 			    struct fib6_config *cfg, gfp_t gfp_flags,
 			    struct netlink_ext_ack *extack);
 	void (*fib6_nh_release)(struct fib6_nh *fib6_nh);
+	void (*fib6_nh_release_dsts)(struct fib6_nh *fib6_nh);
 	void (*fib6_update_sernum)(struct net *net, struct fib6_info *rt);
 	int (*ip6_del_rt)(struct net *net, struct fib6_info *rt, bool skip_notify);
 	void (*fib6_rt_update)(struct net *net, struct fib6_info *rt,
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index e648fbebb1670..090575346daf6 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -1016,6 +1016,7 @@ static const struct ipv6_stub ipv6_stub_impl = {
 	.ip6_mtu_from_fib6 = ip6_mtu_from_fib6,
 	.fib6_nh_init	   = fib6_nh_init,
 	.fib6_nh_release   = fib6_nh_release,
+	.fib6_nh_release_dsts = fib6_nh_release_dsts,
 	.fib6_update_sernum = fib6_update_sernum_stub,
 	.fib6_rt_update	   = fib6_rt_update,
 	.ip6_del_rt	   = ip6_del_rt,
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a68a7d7c07280..6fef0d7586bf6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3570,6 +3570,25 @@ void fib6_nh_release(struct fib6_nh *fib6_nh)
 	fib_nh_common_release(&fib6_nh->nh_common);
 }
 
+void fib6_nh_release_dsts(struct fib6_nh *fib6_nh)
+{
+	int cpu;
+
+	if (!fib6_nh->rt6i_pcpu)
+		return;
+
+	for_each_possible_cpu(cpu) {
+		struct rt6_info *pcpu_rt, **ppcpu_rt;
+
+		ppcpu_rt = per_cpu_ptr(fib6_nh->rt6i_pcpu, cpu);
+		pcpu_rt = xchg(ppcpu_rt, NULL);
+		if (pcpu_rt) {
+			dst_dev_put(&pcpu_rt->dst);
+			dst_release(&pcpu_rt->dst);
+		}
+	}
+}
+
 static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
 					      gfp_t gfp_flags,
 					      struct netlink_ext_ack *extack)
-- 
GitLab


From 26ed13d06422120dec22a01ae22c3d9fecd8cdef Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@nvidia.com>
Date: Mon, 22 Nov 2021 17:15:13 +0200
Subject: [PATCH 1801/4878] net: nexthop: release IPv6 per-cpu dsts when
 replacing a nexthop group

[ Upstream commit 1005f19b9357b81aa64e1decd08d6e332caaa284 ]

When replacing a nexthop group, we must release the IPv6 per-cpu dsts of
the removed nexthop entries after an RCU grace period because they
contain references to the nexthop's net device and to the fib6 info.
With specific series of events[1] we can reach net device refcount
imbalance which is unrecoverable. IPv4 is not affected because dsts
don't take a refcount on the route.

[1]
 $ ip nexthop list
  id 200 via 2002:db8::2 dev bridge.10 scope link onlink
  id 201 via 2002:db8::3 dev bridge scope link onlink
  id 203 group 201/200
 $ ip -6 route
  2001:db8::10 nhid 203 metric 1024 pref medium
     nexthop via 2002:db8::3 dev bridge weight 1 onlink
     nexthop via 2002:db8::2 dev bridge.10 weight 1 onlink

Create rt6_info through one of the multipath legs, e.g.:
 $ taskset -a -c 1  ./pkt_inj 24 bridge.10 2001:db8::10
 (pkt_inj is just a custom packet generator, nothing special)

Then remove that leg from the group by replace (let's assume it is id
200 in this case):
 $ ip nexthop replace id 203 group 201

Now remove the IPv6 route:
 $ ip -6 route del 2001:db8::10/128

The route won't be really deleted due to the stale rt6_info holding 1
refcnt in nexthop id 200.
At this point we have the following reference count dependency:
 (deleted) IPv6 route holds 1 reference over nhid 203
 nh 203 holds 1 ref over id 201
 nh 200 holds 1 ref over the net device and the route due to the stale
 rt6_info

Now to create circular dependency between nh 200 and the IPv6 route, and
also to get a reference over nh 200, restore nhid 200 in the group:
 $ ip nexthop replace id 203 group 201/200

And now we have a permanent circular dependncy because nhid 203 holds a
reference over nh 200 and 201, but the route holds a ref over nh 203 and
is deleted.

To trigger the bug just delete the group (nhid 203):
 $ ip nexthop del id 203

It won't really be deleted due to the IPv6 route dependency, and now we
have 2 unlinked and deleted objects that reference each other: the group
and the IPv6 route. Since the group drops the reference it holds over its
entries at free time (i.e. its own refcount needs to drop to 0) that will
never happen and we get a permanent ref on them, since one of the entries
holds a reference over the IPv6 route it will also never be released.

At this point the dependencies are:
 (deleted, only unlinked) IPv6 route holds reference over group nh 203
 (deleted, only unlinked) group nh 203 holds reference over nh 201 and 200
 nh 200 holds 1 ref over the net device and the route due to the stale
 rt6_info

This is the last point where it can be fixed by running traffic through
nh 200, and specifically through the same CPU so the rt6_info (dst) will
get released due to the IPv6 genid, that in turn will free the IPv6
route, which in turn will free the ref count over the group nh 203.

If nh 200 is deleted at this point, it will never be released due to the
ref from the unlinked group 203, it will only be unlinked:
 $ ip nexthop del id 200
 $ ip nexthop
 $

Now we can never release that stale rt6_info, we have IPv6 route with ref
over group nh 203, group nh 203 with ref over nh 200 and 201, nh 200 with
rt6_info (dst) with ref over the net device and the IPv6 route. All of
these objects are only unlinked, and cannot be released, thus they can't
release their ref counts.

 Message from syslogd@dev at Nov 19 14:04:10 ...
  kernel:[73501.828730] unregister_netdevice: waiting for bridge.10 to become free. Usage count = 3
 Message from syslogd@dev at Nov 19 14:04:20 ...
  kernel:[73512.068811] unregister_netdevice: waiting for bridge.10 to become free. Usage count = 3

Fixes: 7bf4796dd099 ("nexthops: add support for replace")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/nexthop.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index 4dbc628f8c386..8bd3f5e3c0e7a 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -924,15 +924,36 @@ static void remove_nexthop(struct net *net, struct nexthop *nh,
 /* if any FIB entries reference this nexthop, any dst entries
  * need to be regenerated
  */
-static void nh_rt_cache_flush(struct net *net, struct nexthop *nh)
+static void nh_rt_cache_flush(struct net *net, struct nexthop *nh,
+			      struct nexthop *replaced_nh)
 {
 	struct fib6_info *f6i;
+	struct nh_group *nhg;
+	int i;
 
 	if (!list_empty(&nh->fi_list))
 		rt_cache_flush(net);
 
 	list_for_each_entry(f6i, &nh->f6i_list, nh_list)
 		ipv6_stub->fib6_update_sernum(net, f6i);
+
+	/* if an IPv6 group was replaced, we have to release all old
+	 * dsts to make sure all refcounts are released
+	 */
+	if (!replaced_nh->is_group)
+		return;
+
+	/* new dsts must use only the new nexthop group */
+	synchronize_net();
+
+	nhg = rtnl_dereference(replaced_nh->nh_grp);
+	for (i = 0; i < nhg->num_nh; i++) {
+		struct nh_grp_entry *nhge = &nhg->nh_entries[i];
+		struct nh_info *nhi = rtnl_dereference(nhge->nh->nh_info);
+
+		if (nhi->family == AF_INET6)
+			ipv6_stub->fib6_nh_release_dsts(&nhi->fib6_nh);
+	}
 }
 
 static int replace_nexthop_grp(struct net *net, struct nexthop *old,
@@ -1111,7 +1132,7 @@ static int replace_nexthop(struct net *net, struct nexthop *old,
 		err = replace_nexthop_single(net, old, new, extack);
 
 	if (!err) {
-		nh_rt_cache_flush(net, old);
+		nh_rt_cache_flush(net, old, new);
 
 		__remove_nexthop(net, new, NULL);
 		nexthop_put(new);
-- 
GitLab


From 1eb5395add786613c7c5579d3947aa0b8f0ec241 Mon Sep 17 00:00:00 2001
From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Date: Tue, 26 Oct 2021 18:47:18 +0200
Subject: [PATCH 1802/4878] ice: fix vsi->txq_map sizing

[ Upstream commit 792b2086584f25d84081a526beee80d103c2a913 ]

The approach of having XDP queue per CPU regardless of user's setting
exposed a hidden bug that could occur in case when Rx queue count differ
from Tx queue count. Currently vsi->txq_map's size is equal to the
doubled vsi->alloc_txq, which is not correct due to the fact that XDP
rings were previously based on the Rx queue count. Below splat can be
seen when ethtool -L is used and XDP rings are configured:

[  682.875339] BUG: kernel NULL pointer dereference, address: 000000000000000f
[  682.883403] #PF: supervisor read access in kernel mode
[  682.889345] #PF: error_code(0x0000) - not-present page
[  682.895289] PGD 0 P4D 0
[  682.898218] Oops: 0000 [#1] PREEMPT SMP PTI
[  682.903055] CPU: 42 PID: 2878 Comm: ethtool Tainted: G           OE     5.15.0-rc5+ #1
[  682.912214] Hardware name: Intel Corp. GRANTLEY/GRANTLEY, BIOS GRRFCRB1.86B.0276.D07.1605190235 05/19/2016
[  682.923380] RIP: 0010:devres_remove+0x44/0x130
[  682.928527] Code: 49 89 f4 55 48 89 fd 4c 89 ff 53 48 83 ec 10 e8 92 b9 49 00 48 8b 9d a8 02 00 00 48 8d 8d a0 02 00 00 49 89 c2 48 39 cb 74 0f <4c> 3b 63 10 74 25 48 8b 5b 08 48 39 cb 75 f1 4c 89 ff 4c 89 d6 e8
[  682.950237] RSP: 0018:ffffc90006a679f0 EFLAGS: 00010002
[  682.956285] RAX: 0000000000000286 RBX: ffffffffffffffff RCX: ffff88908343a370
[  682.964538] RDX: 0000000000000001 RSI: ffffffff81690d60 RDI: 0000000000000000
[  682.972789] RBP: ffff88908343a0d0 R08: 0000000000000000 R09: 0000000000000000
[  682.981040] R10: 0000000000000286 R11: 3fffffffffffffff R12: ffffffff81690d60
[  682.989282] R13: ffffffff81690a00 R14: ffff8890819807a8 R15: ffff88908343a36c
[  682.997535] FS:  00007f08c7bfa740(0000) GS:ffff88a03fd00000(0000) knlGS:0000000000000000
[  683.006910] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  683.013557] CR2: 000000000000000f CR3: 0000001080a66003 CR4: 00000000003706e0
[  683.021819] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  683.030075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  683.038336] Call Trace:
[  683.041167]  devm_kfree+0x33/0x50
[  683.045004]  ice_vsi_free_arrays+0x5e/0xc0 [ice]
[  683.050380]  ice_vsi_rebuild+0x4c8/0x750 [ice]
[  683.055543]  ice_vsi_recfg_qs+0x9a/0x110 [ice]
[  683.060697]  ice_set_channels+0x14f/0x290 [ice]
[  683.065962]  ethnl_set_channels+0x333/0x3f0
[  683.070807]  genl_family_rcv_msg_doit+0xea/0x150
[  683.076152]  genl_rcv_msg+0xde/0x1d0
[  683.080289]  ? channels_prepare_data+0x60/0x60
[  683.085432]  ? genl_get_cmd+0xd0/0xd0
[  683.089667]  netlink_rcv_skb+0x50/0xf0
[  683.094006]  genl_rcv+0x24/0x40
[  683.097638]  netlink_unicast+0x239/0x340
[  683.102177]  netlink_sendmsg+0x22e/0x470
[  683.106717]  sock_sendmsg+0x5e/0x60
[  683.110756]  __sys_sendto+0xee/0x150
[  683.114894]  ? handle_mm_fault+0xd0/0x2a0
[  683.119535]  ? do_user_addr_fault+0x1f3/0x690
[  683.134173]  __x64_sys_sendto+0x25/0x30
[  683.148231]  do_syscall_64+0x3b/0xc0
[  683.161992]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Fix this by taking into account the value that num_possible_cpus()
yields in addition to vsi->alloc_txq instead of doubling the latter.

Fixes: efc2214b6047 ("ice: Add support for XDP")
Fixes: 22bf877e528f ("ice: introduce XDP_TX fallback path")
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_lib.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index dc944d605a741..52ac6cc08e83e 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -83,8 +83,13 @@ static int ice_vsi_alloc_arrays(struct ice_vsi *vsi)
 	if (!vsi->rx_rings)
 		goto err_rings;
 
-	/* XDP will have vsi->alloc_txq Tx queues as well, so double the size */
-	vsi->txq_map = devm_kcalloc(dev, (2 * vsi->alloc_txq),
+	/* txq_map needs to have enough space to track both Tx (stack) rings
+	 * and XDP rings; at this point vsi->num_xdp_txq might not be set,
+	 * so use num_possible_cpus() as we want to always provide XDP ring
+	 * per CPU, regardless of queue count settings from user that might
+	 * have come from ethtool's set_channels() callback;
+	 */
+	vsi->txq_map = devm_kcalloc(dev, (vsi->alloc_txq + num_possible_cpus()),
 				    sizeof(*vsi->txq_map), GFP_KERNEL);
 
 	if (!vsi->txq_map)
-- 
GitLab


From e65a8707b4cd756d26d246bb2b9fab06eebafac1 Mon Sep 17 00:00:00 2001
From: Marta Plantykow <marta.a.plantykow@intel.com>
Date: Tue, 26 Oct 2021 18:47:19 +0200
Subject: [PATCH 1803/4878] ice: avoid bpf_prog refcount underflow

[ Upstream commit f65ee535df775a13a1046c0a0b2d72db342f8a5b ]

Ice driver has the routines for managing XDP resources that are shared
between ndo_bpf op and VSI rebuild flow. The latter takes place for
example when user changes queue count on an interface via ethtool's
set_channels().

There is an issue around the bpf_prog refcounting when VSI is being
rebuilt - since ice_prepare_xdp_rings() is called with vsi->xdp_prog as
an argument that is used later on by ice_vsi_assign_bpf_prog(), same
bpf_prog pointers are swapped with each other. Then it is also
interpreted as an 'old_prog' which in turn causes us to call
bpf_prog_put on it that will decrement its refcount.

Below splat can be interpreted in a way that due to zero refcount of a
bpf_prog it is wiped out from the system while kernel still tries to
refer to it:

[  481.069429] BUG: unable to handle page fault for address: ffffc9000640f038
[  481.077390] #PF: supervisor read access in kernel mode
[  481.083335] #PF: error_code(0x0000) - not-present page
[  481.089276] PGD 100000067 P4D 100000067 PUD 1001cb067 PMD 106d2b067 PTE 0
[  481.097141] Oops: 0000 [#1] PREEMPT SMP PTI
[  481.101980] CPU: 12 PID: 3339 Comm: sudo Tainted: G           OE     5.15.0-rc5+ #1
[  481.110840] Hardware name: Intel Corp. GRANTLEY/GRANTLEY, BIOS GRRFCRB1.86B.0276.D07.1605190235 05/19/2016
[  481.122021] RIP: 0010:dev_xdp_prog_id+0x25/0x40
[  481.127265] Code: 80 00 00 00 00 0f 1f 44 00 00 89 f6 48 c1 e6 04 48 01 fe 48 8b 86 98 08 00 00 48 85 c0 74 13 48 8b 50 18 31 c0 48 85 d2 74 07 <48> 8b 42 38 8b 40 20 c3 48 8b 96 90 08 00 00 eb e8 66 2e 0f 1f 84
[  481.148991] RSP: 0018:ffffc90007b63868 EFLAGS: 00010286
[  481.155034] RAX: 0000000000000000 RBX: ffff889080824000 RCX: 0000000000000000
[  481.163278] RDX: ffffc9000640f000 RSI: ffff889080824010 RDI: ffff889080824000
[  481.171527] RBP: ffff888107af7d00 R08: 0000000000000000 R09: ffff88810db5f6e0
[  481.179776] R10: 0000000000000000 R11: ffff8890885b9988 R12: ffff88810db5f4bc
[  481.188026] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[  481.196276] FS:  00007f5466d5bec0(0000) GS:ffff88903fb00000(0000) knlGS:0000000000000000
[  481.205633] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  481.212279] CR2: ffffc9000640f038 CR3: 000000014429c006 CR4: 00000000003706e0
[  481.220530] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  481.228771] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  481.237029] Call Trace:
[  481.239856]  rtnl_fill_ifinfo+0x768/0x12e0
[  481.244602]  rtnl_dump_ifinfo+0x525/0x650
[  481.249246]  ? __alloc_skb+0xa5/0x280
[  481.253484]  netlink_dump+0x168/0x3c0
[  481.257725]  netlink_recvmsg+0x21e/0x3e0
[  481.262263]  ____sys_recvmsg+0x87/0x170
[  481.266707]  ? __might_fault+0x20/0x30
[  481.271046]  ? _copy_from_user+0x66/0xa0
[  481.275591]  ? iovec_from_user+0xf6/0x1c0
[  481.280226]  ___sys_recvmsg+0x82/0x100
[  481.284566]  ? sock_sendmsg+0x5e/0x60
[  481.288791]  ? __sys_sendto+0xee/0x150
[  481.293129]  __sys_recvmsg+0x56/0xa0
[  481.297267]  do_syscall_64+0x3b/0xc0
[  481.301395]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  481.307238] RIP: 0033:0x7f5466f39617
[  481.311373] Code: 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb bd 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[  481.342944] RSP: 002b:00007ffedc7f4308 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
[  481.361783] RAX: ffffffffffffffda RBX: 00007ffedc7f5460 RCX: 00007f5466f39617
[  481.380278] RDX: 0000000000000000 RSI: 00007ffedc7f5360 RDI: 0000000000000003
[  481.398500] RBP: 00007ffedc7f53f0 R08: 0000000000000000 R09: 000055d556f04d50
[  481.416463] R10: 0000000000000077 R11: 0000000000000246 R12: 00007ffedc7f5360
[  481.434131] R13: 00007ffedc7f5350 R14: 00007ffedc7f5344 R15: 0000000000000e98
[  481.451520] Modules linked in: ice(OE) af_packet binfmt_misc nls_iso8859_1 ipmi_ssif intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp mxm_wmi mei_me coretemp mei ipmi_si ipmi_msghandler wmi acpi_pad acpi_power_meter ip_tables x_tables autofs4 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel ahci crypto_simd cryptd libahci lpc_ich [last unloaded: ice]
[  481.528558] CR2: ffffc9000640f038
[  481.542041] ---[ end trace d1f24c9ecf5b61c1 ]---

Fix this by only calling ice_vsi_assign_bpf_prog() inside
ice_prepare_xdp_rings() when current vsi->xdp_prog pointer is NULL.
This way set_channels() flow will not attempt to swap the vsi->xdp_prog
pointers with itself.

Also, sprinkle around some comments that provide a reasoning about
correlation between driver and kernel in terms of bpf_prog refcount.

Fixes: efc2214b6047 ("ice: Add support for XDP")
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Signed-off-by: Marta Plantykow <marta.a.plantykow@intel.com>
Co-developed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 5b67d24b2b5ed..746a5bd178d3b 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -2397,7 +2397,18 @@ int ice_prepare_xdp_rings(struct ice_vsi *vsi, struct bpf_prog *prog)
 			ice_stat_str(status));
 		goto clear_xdp_rings;
 	}
-	ice_vsi_assign_bpf_prog(vsi, prog);
+
+	/* assign the prog only when it's not already present on VSI;
+	 * this flow is a subject of both ethtool -L and ndo_bpf flows;
+	 * VSI rebuild that happens under ethtool -L can expose us to
+	 * the bpf_prog refcount issues as we would be swapping same
+	 * bpf_prog pointers from vsi->xdp_prog and calling bpf_prog_put
+	 * on it as it would be treated as an 'old_prog'; for ndo_bpf
+	 * this is not harmful as dev_xdp_install bumps the refcount
+	 * before calling the op exposed by the driver;
+	 */
+	if (!ice_is_xdp_ena_vsi(vsi))
+		ice_vsi_assign_bpf_prog(vsi, prog);
 
 	return 0;
 clear_xdp_rings:
@@ -2527,6 +2538,11 @@ ice_xdp_setup_prog(struct ice_vsi *vsi, struct bpf_prog *prog,
 		if (xdp_ring_err)
 			NL_SET_ERR_MSG_MOD(extack, "Freeing XDP Tx resources failed");
 	} else {
+		/* safe to call even when prog == vsi->xdp_prog as
+		 * dev_xdp_install in net/core/dev.c incremented prog's
+		 * refcount so corresponding bpf_prog_put won't cause
+		 * underflow
+		 */
 		ice_vsi_assign_bpf_prog(vsi, prog);
 	}
 
-- 
GitLab


From 725ba1289508e1940ddc43142ff6f91cbcf77ec4 Mon Sep 17 00:00:00 2001
From: Mike Christie <michael.christie@oracle.com>
Date: Sat, 20 Nov 2021 10:49:17 -0600
Subject: [PATCH 1804/4878] scsi: core: sysfs: Fix setting device state to
 SDEV_RUNNING

[ Upstream commit eb97545d6264b341b06ba7603f52ff6c0b2af6ea ]

This fixes an issue added in commit 4edd8cd4e86d ("scsi: core: sysfs: Fix
hang when device state is set via sysfs") where if userspace is requesting
to set the device state to SDEV_RUNNING when the state is already
SDEV_RUNNING, we return -EINVAL instead of count. The commmit above set ret
to count for this case, when it should have set it to 0.

Link: https://lore.kernel.org/r/20211120164917.4924-1-michael.christie@oracle.com
Fixes: 4edd8cd4e86d ("scsi: core: sysfs: Fix hang when device state is set via sysfs")
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 8de67679a8782..42db9c52208e6 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -816,7 +816,7 @@ store_state_field(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&sdev->state_mutex);
 	if (sdev->sdev_state == SDEV_RUNNING && state == SDEV_RUNNING) {
-		ret = count;
+		ret = 0;
 	} else {
 		ret = scsi_device_set_state(sdev, state);
 		if (ret == 0 && state == SDEV_RUNNING)
-- 
GitLab


From 9f540c7ffb1e5be3b5d5607deabfda0dec0d0a2d Mon Sep 17 00:00:00 2001
From: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Date: Mon, 22 Nov 2021 15:12:23 +0900
Subject: [PATCH 1805/4878] scsi: scsi_debug: Zero clear zones at reset write
 pointer

[ Upstream commit 2d62253eb1b60f4ce8b39125eee282739b519297 ]

When a reset is requested the position of the write pointer is updated but
the data in the corresponding zone is not cleared. Instead scsi_debug
returns any data written before the write pointer was reset. This is an
error and prevents using scsi_debug for stale page cache testing of the
BLKRESETZONE ioctl.

Zero written data in the zone when resetting the write pointer.

Link: https://lore.kernel.org/r/20211122061223.298890-1-shinichiro.kawasaki@wdc.com
Fixes: f0d1cf9378bd ("scsi: scsi_debug: Add ZBC zone commands")
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_debug.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 3fc7c2a31c191..1a3f5adc68849 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4628,6 +4628,7 @@ static void zbc_rwp_zone(struct sdebug_dev_info *devip,
 			 struct sdeb_zone_state *zsp)
 {
 	enum sdebug_z_cond zc;
+	struct sdeb_store_info *sip = devip2sip(devip, false);
 
 	if (zbc_zone_is_conv(zsp))
 		return;
@@ -4639,6 +4640,10 @@ static void zbc_rwp_zone(struct sdebug_dev_info *devip,
 	if (zsp->z_cond == ZC4_CLOSED)
 		devip->nr_closed--;
 
+	if (zsp->z_wp > zsp->z_start)
+		memset(sip->storep + zsp->z_start * sdebug_sector_size, 0,
+		       (zsp->z_wp - zsp->z_start) * sdebug_sector_size);
+
 	zsp->z_non_seq_resource = false;
 	zsp->z_wp = zsp->z_start;
 	zsp->z_cond = ZC1_EMPTY;
-- 
GitLab


From 77d9c2efa870c969b52a75aa50119752ae33dfd7 Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Thu, 18 Nov 2021 21:58:44 +0800
Subject: [PATCH 1806/4878] erofs: fix deadlock when shrink erofs slab

[ Upstream commit 57bbeacdbee72a54eb97d56b876cf9c94059fc34 ]

We observed the following deadlock in the stress test under low
memory scenario:

Thread A                               Thread B
- erofs_shrink_scan
 - erofs_try_to_release_workgroup
  - erofs_workgroup_try_to_freeze -- A
                                       - z_erofs_do_read_page
                                        - z_erofs_collection_begin
                                         - z_erofs_register_collection
                                          - erofs_insert_workgroup
                                           - xa_lock(&sbi->managed_pslots) -- B
                                           - erofs_workgroup_get
                                            - erofs_wait_on_workgroup_freezed -- A
  - xa_erase
   - xa_lock(&sbi->managed_pslots) -- B

To fix this, it needs to hold xa_lock before freezing the workgroup
since xarray will be touched then. So let's hold the lock before
accessing each workgroup, just like what we did with the radix tree
before.

[ Gao Xiang: Jianhua Hao also reports this issue at
  https://lore.kernel.org/r/b10b85df30694bac8aadfe43537c897a@xiaomi.com ]

Link: https://lore.kernel.org/r/20211118135844.3559-1-huangjianan@oppo.com
Fixes: 64094a04414f ("erofs: convert workstn to XArray")
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Reported-by: Jianhua Hao <haojianhua1@xiaomi.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/erofs/utils.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index de9986d2f82fd..5c11199d753a6 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -154,7 +154,7 @@ static bool erofs_try_to_release_workgroup(struct erofs_sb_info *sbi,
 	 * however in order to avoid some race conditions, add a
 	 * DBG_BUGON to observe this in advance.
 	 */
-	DBG_BUGON(xa_erase(&sbi->managed_pslots, grp->index) != grp);
+	DBG_BUGON(__xa_erase(&sbi->managed_pslots, grp->index) != grp);
 
 	/* last refcount should be connected with its managed pslot.  */
 	erofs_workgroup_unfreeze(grp, 0);
@@ -169,15 +169,19 @@ static unsigned long erofs_shrink_workstation(struct erofs_sb_info *sbi,
 	unsigned int freed = 0;
 	unsigned long index;
 
+	xa_lock(&sbi->managed_pslots);
 	xa_for_each(&sbi->managed_pslots, index, grp) {
 		/* try to shrink each valid workgroup */
 		if (!erofs_try_to_release_workgroup(sbi, grp))
 			continue;
+		xa_unlock(&sbi->managed_pslots);
 
 		++freed;
 		if (!--nr_shrink)
-			break;
+			return freed;
+		xa_lock(&sbi->managed_pslots);
 	}
+	xa_unlock(&sbi->managed_pslots);
 	return freed;
 }
 
-- 
GitLab


From 29e1b57347957a2be71af782ba5aeaadf544be29 Mon Sep 17 00:00:00 2001
From: Tony Lu <tonylu@linux.alibaba.com>
Date: Tue, 23 Nov 2021 16:25:18 +0800
Subject: [PATCH 1807/4878] net/smc: Ensure the active closing peer first
 closes clcsock

[ Upstream commit 606a63c9783a32a45bd2ef0eee393711d75b3284 ]

The side that actively closed socket, it's clcsock doesn't enter
TIME_WAIT state, but the passive side does it. It should show the same
behavior as TCP sockets.

Consider this, when client actively closes the socket, the clcsock in
server enters TIME_WAIT state, which means the address is occupied and
won't be reused before TIME_WAIT dismissing. If we restarted server, the
service would be unavailable for a long time.

To solve this issue, shutdown the clcsock in [A], perform the TCP active
close progress first, before the passive closed side closing it. So that
the actively closed side enters TIME_WAIT, not the passive one.

Client                                            |  Server
close() // client actively close                  |
  smc_release()                                   |
      smc_close_active() // PEERCLOSEWAIT1        |
          smc_close_final() // abort or closed = 1|
              smc_cdc_get_slot_and_msg_send()     |
          [A]                                     |
                                                  |smc_cdc_msg_recv_action() // ACTIVE
                                                  |  queue_work(smc_close_wq, &conn->close_work)
                                                  |    smc_close_passive_work() // PROCESSABORT or APPCLOSEWAIT1
                                                  |      smc_close_passive_abort_received() // only in abort
                                                  |
                                                  |close() // server recv zero, close
                                                  |  smc_release() // PROCESSABORT or APPCLOSEWAIT1
                                                  |    smc_close_active()
                                                  |      smc_close_abort() or smc_close_final() // CLOSED
                                                  |        smc_cdc_get_slot_and_msg_send() // abort or closed = 1
smc_cdc_msg_recv_action()                         |    smc_clcsock_release()
  queue_work(smc_close_wq, &conn->close_work)     |      sock_release(tcp) // actively close clc, enter TIME_WAIT
    smc_close_passive_work() // PEERCLOSEWAIT1    |    smc_conn_free()
      smc_close_passive_abort_received() // CLOSED|
      smc_conn_free()                             |
      smc_clcsock_release()                       |
        sock_release(tcp) // passive close clc    |

Link: https://www.spinics.net/lists/netdev/msg780407.html
Fixes: b38d732477e4 ("smc: socket closing and linkgroup cleanup")
Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_close.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 0f9ffba07d268..04620b53b74a7 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -228,6 +228,12 @@ again:
 			/* send close request */
 			rc = smc_close_final(conn);
 			sk->sk_state = SMC_PEERCLOSEWAIT1;
+
+			/* actively shutdown clcsock before peer close it,
+			 * prevent peer from entering TIME_WAIT state.
+			 */
+			if (smc->clcsock && smc->clcsock->sk)
+				rc = kernel_sock_shutdown(smc->clcsock, SHUT_RDWR);
 		} else {
 			/* peer event has changed the state */
 			goto again;
-- 
GitLab


From 33d89128a9602c34d2875dbf7153d9bdbccd7511 Mon Sep 17 00:00:00 2001
From: Danielle Ratson <danieller@nvidia.com>
Date: Mon, 17 May 2021 20:03:57 +0300
Subject: [PATCH 1808/4878] mlxsw: Verify the accessed index doesn't exceed the
 array length

[ Upstream commit 837ec05cfea08284c575e8e834777b107da5ff9d ]

There are few cases in which an array index queried from a fw register,
is accessed without any validation that it doesn't exceed the array
length.

Add a proper length validation, so accessing memory past the end of an
array will be forbidden.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/minimal.c            | 4 ++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c           | 5 +++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c       | 3 +++
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c    | 3 +++
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 4 ++++
 5 files changed, 19 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/minimal.c b/drivers/net/ethernet/mellanox/mlxsw/minimal.c
index c010db2c9dba9..443dc44452ef8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/minimal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/minimal.c
@@ -234,6 +234,7 @@ static void mlxsw_m_port_remove(struct mlxsw_m *mlxsw_m, u8 local_port)
 static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u8 local_port,
 				   u8 *last_module)
 {
+	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core);
 	u8 module, width;
 	int err;
 
@@ -249,6 +250,9 @@ static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u8 local_port,
 	if (module == *last_module)
 		return 0;
 	*last_module = module;
+
+	if (WARN_ON_ONCE(module >= max_ports))
+		return -EINVAL;
 	mlxsw_m->module_to_port[module] = ++mlxsw_m->max_ports;
 
 	return 0;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index b08853f71b2be..1a9978f501ba9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2052,9 +2052,14 @@ static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
 	struct mlxsw_sp *mlxsw_sp = priv;
 	struct mlxsw_sp_port *mlxsw_sp_port;
 	enum mlxsw_reg_pude_oper_status status;
+	unsigned int max_ports;
 	u8 local_port;
 
+	max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
+
+	if (WARN_ON_ONCE(local_port >= max_ports))
+		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port)
 		return;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
index ca8090a28dec6..50eca2daad843 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
@@ -568,10 +568,13 @@ void mlxsw_sp1_ptp_got_timestamp(struct mlxsw_sp *mlxsw_sp, bool ingress,
 				 u8 domain_number, u16 sequence_id,
 				 u64 timestamp)
 {
+	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	struct mlxsw_sp_port *mlxsw_sp_port;
 	struct mlxsw_sp1_ptp_key key;
 	u8 types;
 
+	if (WARN_ON_ONCE(local_port >= max_ports))
+		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port)
 		return;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 4381f8c6c3fb7..53128382fc2e0 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2177,6 +2177,7 @@ static void mlxsw_sp_router_neigh_ent_ipv4_process(struct mlxsw_sp *mlxsw_sp,
 						   char *rauhtd_pl,
 						   int ent_index)
 {
+	u64 max_rifs = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS);
 	struct net_device *dev;
 	struct neighbour *n;
 	__be32 dipn;
@@ -2185,6 +2186,8 @@ static void mlxsw_sp_router_neigh_ent_ipv4_process(struct mlxsw_sp *mlxsw_sp,
 
 	mlxsw_reg_rauhtd_ent_ipv4_unpack(rauhtd_pl, ent_index, &rif, &dip);
 
+	if (WARN_ON_ONCE(rif >= max_rifs))
+		return;
 	if (!mlxsw_sp->router->rifs[rif]) {
 		dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect RIF in neighbour entry\n");
 		return;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 6501ce94ace58..368fa0e5ad315 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -2410,6 +2410,7 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
 					    char *sfn_pl, int rec_index,
 					    bool adding)
 {
+	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 	struct mlxsw_sp_bridge_device *bridge_device;
 	struct mlxsw_sp_bridge_port *bridge_port;
@@ -2422,6 +2423,9 @@ static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
 	int err;
 
 	mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
+
+	if (WARN_ON_ONCE(local_port >= max_ports))
+		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port) {
 		dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
-- 
GitLab


From 90d0736876c50ecde1a3275636a06b9ddb1cace9 Mon Sep 17 00:00:00 2001
From: Amit Cohen <amcohen@nvidia.com>
Date: Tue, 23 Nov 2021 09:52:56 +0200
Subject: [PATCH 1809/4878] mlxsw: spectrum: Protect driver from buggy firmware

[ Upstream commit 63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047 ]

When processing port up/down events generated by the device's firmware,
the driver protects itself from events reported for non-existent local
ports, but not the CPU port (local port 0), which exists, but lacks a
netdev.

This can result in a NULL pointer dereference when calling
netif_carrier_{on,off}().

Fix this by bailing early when processing an event reported for the CPU
port. Problem was only observed when running on top of a buggy emulator.

Fixes: 28b1987ef506 ("mlxsw: spectrum: Register CPU port with devlink")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 1a9978f501ba9..4110e15c22c79 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2058,7 +2058,7 @@ static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
 	max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
 	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
 
-	if (WARN_ON_ONCE(local_port >= max_ports))
+	if (WARN_ON_ONCE(!local_port || local_port >= max_ports))
 		return;
 	mlxsw_sp_port = mlxsw_sp->ports[local_port];
 	if (!mlxsw_sp_port)
-- 
GitLab


From 8889ff80fde3461e24e25e1578b7f170c0bb9cab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Mon, 22 Nov 2021 21:08:34 +0100
Subject: [PATCH 1810/4878] net: marvell: mvpp2: increase MTU limit when XDP
 enabled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 7b1b62bc1e6a7b2fd5ee7a4296268eb291d23aeb ]

Currently mvpp2_xdp_setup won't allow attaching XDP program if
  mtu > ETH_DATA_LEN (1500).

The mvpp2_change_mtu on the other hand checks whether
  MVPP2_RX_PKT_SIZE(mtu) > MVPP2_BM_LONG_PKT_SIZE.

These two checks are semantically different.

Moreover this limit can be increased to MVPP2_MAX_RX_BUF_SIZE, since in
mvpp2_rx we have
  xdp.data = data + MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM;
  xdp.frame_sz = PAGE_SIZE;

Change the checks to check whether
  mtu > MVPP2_MAX_RX_BUF_SIZE

Fixes: 07dd0a7aae7f ("mvpp2: add basic XDP support")
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index ec9b6c564300e..e220d44df2e65 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4652,11 +4652,13 @@ static int mvpp2_change_mtu(struct net_device *dev, int mtu)
 		mtu = ALIGN(MVPP2_RX_PKT_SIZE(mtu), 8);
 	}
 
+	if (port->xdp_prog && mtu > MVPP2_MAX_RX_BUF_SIZE) {
+		netdev_err(dev, "Illegal MTU value %d (> %d) for XDP mode\n",
+			   mtu, (int)MVPP2_MAX_RX_BUF_SIZE);
+		return -EINVAL;
+	}
+
 	if (MVPP2_RX_PKT_SIZE(mtu) > MVPP2_BM_LONG_PKT_SIZE) {
-		if (port->xdp_prog) {
-			netdev_err(dev, "Jumbo frames are not supported with XDP\n");
-			return -EINVAL;
-		}
 		if (priv->percpu_pools) {
 			netdev_warn(dev, "mtu %d too high, switching to shared buffers", mtu);
 			mvpp2_bm_switch_buffers(priv, false);
@@ -4942,8 +4944,8 @@ static int mvpp2_xdp_setup(struct mvpp2_port *port, struct netdev_bpf *bpf)
 	bool running = netif_running(port->dev);
 	bool reset = !prog != !port->xdp_prog;
 
-	if (port->dev->mtu > ETH_DATA_LEN) {
-		NL_SET_ERR_MSG_MOD(bpf->extack, "XDP is not supported with jumbo frames enabled");
+	if (port->dev->mtu > MVPP2_MAX_RX_BUF_SIZE) {
+		NL_SET_ERR_MSG_MOD(bpf->extack, "MTU too large for XDP");
 		return -EOPNOTSUPP;
 	}
 
-- 
GitLab


From ac88cb3c44b6cf2fa29cd76c09cf8717e7056685 Mon Sep 17 00:00:00 2001
From: Varun Prakash <varun@chelsio.com>
Date: Mon, 22 Nov 2021 15:38:41 +0530
Subject: [PATCH 1811/4878] nvmet-tcp: fix incomplete data digest send

[ Upstream commit 102110efdff6beedece6ab9b51664c32ac01e2db ]

Current nvmet_try_send_ddgst() code does not check whether
all data digest bytes are transmitted, fix this by returning
-EAGAIN if all data digest bytes are not transmitted.

Fixes: 872d26a391da ("nvmet-tcp: add NVMe over TCP target driver")
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/tcp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 1251fd6e92780..96b67a70cbbbd 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -688,10 +688,11 @@ static int nvmet_try_send_r2t(struct nvmet_tcp_cmd *cmd, bool last_in_batch)
 static int nvmet_try_send_ddgst(struct nvmet_tcp_cmd *cmd, bool last_in_batch)
 {
 	struct nvmet_tcp_queue *queue = cmd->queue;
+	int left = NVME_TCP_DIGEST_LENGTH - cmd->offset;
 	struct msghdr msg = { .msg_flags = MSG_DONTWAIT };
 	struct kvec iov = {
 		.iov_base = (u8 *)&cmd->exp_ddgst + cmd->offset,
-		.iov_len = NVME_TCP_DIGEST_LENGTH - cmd->offset
+		.iov_len = left
 	};
 	int ret;
 
@@ -705,6 +706,10 @@ static int nvmet_try_send_ddgst(struct nvmet_tcp_cmd *cmd, bool last_in_batch)
 		return ret;
 
 	cmd->offset += ret;
+	left -= ret;
+
+	if (left)
+		return -EAGAIN;
 
 	if (queue->nvme_sq.sqhd_disabled) {
 		cmd->queue->snd_cmd = NULL;
-- 
GitLab


From 440bd9faad298c3cb31dcc6713070dc718769d47 Mon Sep 17 00:00:00 2001
From: Kumar Thangavel <kumarthangavel.hcl@gmail.com>
Date: Mon, 22 Nov 2021 22:08:18 +0530
Subject: [PATCH 1812/4878] net/ncsi : Add payload to be 32-bit aligned to fix
 dropped packets

[ Upstream commit ac132852147ad303a938dda318970dd1bbdfda4e ]

Update NC-SI command handler (both standard and OEM) to take into
account of payload paddings in allocating skb (in case of payload
size is not 32-bit aligned).

The checksum field follows payload field, without taking payload
padding into account can cause checksum being truncated, leading to
dropped packets.

Fixes: fb4ee67529ff ("net/ncsi: Add NCSI OEM command support")
Signed-off-by: Kumar Thangavel <thangavel.k@hcl.com>
Acked-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ncsi/ncsi-cmd.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/net/ncsi/ncsi-cmd.c b/net/ncsi/ncsi-cmd.c
index ba9ae482141b0..dda8b76b77988 100644
--- a/net/ncsi/ncsi-cmd.c
+++ b/net/ncsi/ncsi-cmd.c
@@ -18,6 +18,8 @@
 #include "internal.h"
 #include "ncsi-pkt.h"
 
+static const int padding_bytes = 26;
+
 u32 ncsi_calculate_checksum(unsigned char *data, int len)
 {
 	u32 checksum = 0;
@@ -213,12 +215,17 @@ static int ncsi_cmd_handler_oem(struct sk_buff *skb,
 {
 	struct ncsi_cmd_oem_pkt *cmd;
 	unsigned int len;
+	int payload;
+	/* NC-SI spec DSP_0222_1.2.0, section 8.2.2.2
+	 * requires payload to be padded with 0 to
+	 * 32-bit boundary before the checksum field.
+	 * Ensure the padding bytes are accounted for in
+	 * skb allocation
+	 */
 
+	payload = ALIGN(nca->payload, 4);
 	len = sizeof(struct ncsi_cmd_pkt_hdr) + 4;
-	if (nca->payload < 26)
-		len += 26;
-	else
-		len += nca->payload;
+	len += max(payload, padding_bytes);
 
 	cmd = skb_put_zero(skb, len);
 	memcpy(&cmd->mfr_id, nca->data, nca->payload);
@@ -272,6 +279,7 @@ static struct ncsi_request *ncsi_alloc_command(struct ncsi_cmd_arg *nca)
 	struct net_device *dev = nd->dev;
 	int hlen = LL_RESERVED_SPACE(dev);
 	int tlen = dev->needed_tailroom;
+	int payload;
 	int len = hlen + tlen;
 	struct sk_buff *skb;
 	struct ncsi_request *nr;
@@ -281,14 +289,14 @@ static struct ncsi_request *ncsi_alloc_command(struct ncsi_cmd_arg *nca)
 		return NULL;
 
 	/* NCSI command packet has 16-bytes header, payload, 4 bytes checksum.
+	 * Payload needs padding so that the checksum field following payload is
+	 * aligned to 32-bit boundary.
 	 * The packet needs padding if its payload is less than 26 bytes to
 	 * meet 64 bytes minimal ethernet frame length.
 	 */
 	len += sizeof(struct ncsi_cmd_pkt_hdr) + 4;
-	if (nca->payload < 26)
-		len += 26;
-	else
-		len += nca->payload;
+	payload = ALIGN(nca->payload, 4);
+	len += max(payload, padding_bytes);
 
 	/* Allocate skb */
 	skb = alloc_skb(len, GFP_ATOMIC);
-- 
GitLab


From f634c755a0ee16232a450406cbd6266f0f500d2d Mon Sep 17 00:00:00 2001
From: Thomas Zeitlhofer <thomas.zeitlhofer+lkml@ze-it.at>
Date: Tue, 23 Nov 2021 20:18:43 +0100
Subject: [PATCH 1813/4878] PM: hibernate: use correct mode for swsusp_close()

[ Upstream commit cefcf24b4d351daf70ecd945324e200d3736821e ]

Commit 39fbef4b0f77 ("PM: hibernate: Get block device exclusively in
swsusp_check()") changed the opening mode of the block device to
(FMODE_READ | FMODE_EXCL).

In the corresponding calls to swsusp_close(), the mode is still just
FMODE_READ which triggers the warning in blkdev_flush_mapping() on
resume from hibernate.

So, use the mode (FMODE_READ | FMODE_EXCL) also when closing the
device.

Fixes: 39fbef4b0f77 ("PM: hibernate: Get block device exclusively in swsusp_check()")
Signed-off-by: Thomas Zeitlhofer <thomas.zeitlhofer+lkml@ze-it.at>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/power/hibernate.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 2fc7d509a34fc..bf640fd6142a0 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -688,7 +688,7 @@ static int load_image_and_restore(void)
 		goto Unlock;
 
 	error = swsusp_read(&flags);
-	swsusp_close(FMODE_READ);
+	swsusp_close(FMODE_READ | FMODE_EXCL);
 	if (!error)
 		error = hibernation_restore(flags & SF_PLATFORM_MODE);
 
@@ -978,7 +978,7 @@ static int software_resume(void)
 	/* The snapshot device should not be opened while we're running */
 	if (!hibernate_acquire()) {
 		error = -EBUSY;
-		swsusp_close(FMODE_READ);
+		swsusp_close(FMODE_READ | FMODE_EXCL);
 		goto Unlock;
 	}
 
@@ -1013,7 +1013,7 @@ static int software_resume(void)
 	pm_pr_dbg("Hibernation image not present or could not be loaded.\n");
 	return error;
  Close_Finish:
-	swsusp_close(FMODE_READ);
+	swsusp_close(FMODE_READ | FMODE_EXCL);
 	goto Finish;
 }
 
-- 
GitLab


From 3187623096091d8c60231de5ca0e020bfa5e6ee9 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Tue, 9 Nov 2021 11:24:10 -0500
Subject: [PATCH 1814/4878] drm/amd/display: Set plane update flags for all
 planes in reset

[ Upstream commit 21431f70f6014f81b0d118ff4fcee12b00b9dd70 ]

[Why]
We're only setting the flags on stream[0]'s planes so this logic fails
if we have more than one stream in the state.

This can cause a page flip timeout with multiple displays in the
configuration.

[How]
Index into the stream_status array using the stream index - it's a 1:1
mapping.

Fixes: cdaae8371aa9 ("drm/amd/display: Handle GPU reset for DC block")

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d9525fbedad2d..a5b6f36fe1d72 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1963,8 +1963,8 @@ static int dm_resume(void *handle)
 
 		for (i = 0; i < dc_state->stream_count; i++) {
 			dc_state->streams[i]->mode_changed = true;
-			for (j = 0; j < dc_state->stream_status->plane_count; j++) {
-				dc_state->stream_status->plane_states[j]->update_flags.raw
+			for (j = 0; j < dc_state->stream_status[i].plane_count; j++) {
+				dc_state->stream_status[i].plane_states[j]->update_flags.raw
 					= 0xffffffff;
 			}
 		}
-- 
GitLab


From c5e4316d9c02e926ed74f53ecd65a757dcbe0cd9 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 23 Nov 2021 12:25:35 -0800
Subject: [PATCH 1815/4878] tcp_cubic: fix spurious Hystart ACK train
 detections for not-cwnd-limited flows

[ Upstream commit 4e1fddc98d2585ddd4792b5e44433dcee7ece001 ]

While testing BIG TCP patch series, I was expecting that TCP_RR workloads
with 80KB requests/answers would send one 80KB TSO packet,
then being received as a single GRO packet.

It turns out this was not happening, and the root cause was that
cubic Hystart ACK train was triggering after a few (2 or 3) rounds of RPC.

Hystart was wrongly setting CWND/SSTHRESH to 30, while my RPC
needed a budget of ~20 segments.

Ideally these TCP_RR flows should not exit slow start.

Cubic Hystart should reset itself at each round, instead of assuming
every TCP flow is a bulk one.

Note that even after this patch, Hystart can still trigger, depending
on scheduling artifacts, but at a higher CWND/SSTHRESH threshold,
keeping optimal TSO packet sizes.

Tested:

ip link set dev eth0 gro_ipv6_max_size 131072 gso_ipv6_max_size 131072
nstat -n; netperf -H ... -t TCP_RR  -l 5  -- -r 80000,80000 -K cubic; nstat|egrep "Ip6InReceives|Hystart|Ip6OutRequests"

Before:

   8605
Ip6InReceives                   87541              0.0
Ip6OutRequests                  129496             0.0
TcpExtTCPHystartTrainDetect     1                  0.0
TcpExtTCPHystartTrainCwnd       30                 0.0

After:

  8760
Ip6InReceives                   88514              0.0
Ip6OutRequests                  87975              0.0

Fixes: ae27e98a5152 ("[TCP] CUBIC v2.3")
Co-developed-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Soheil Hassas Yeganeh <soheil@google.com>
Link: https://lore.kernel.org/r/20211123202535.1843771-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp_cubic.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index c7bf5b26bf0c2..fffa011a007d4 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -337,8 +337,6 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked)
 		return;
 
 	if (tcp_in_slow_start(tp)) {
-		if (hystart && after(ack, ca->end_seq))
-			bictcp_hystart_reset(sk);
 		acked = tcp_slow_start(tp, acked);
 		if (!acked)
 			return;
@@ -398,6 +396,9 @@ static void hystart_update(struct sock *sk, u32 delay)
 	struct bictcp *ca = inet_csk_ca(sk);
 	u32 threshold;
 
+	if (after(tp->snd_una, ca->end_seq))
+		bictcp_hystart_reset(sk);
+
 	if (hystart_detect & HYSTART_ACK_TRAIN) {
 		u32 now = bictcp_clock_us(sk);
 
-- 
GitLab


From 95ba8f0d57ce1248eb105fa0a003d57ec98ab730 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Wed, 24 Nov 2021 08:16:25 +0100
Subject: [PATCH 1816/4878] lan743x: fix deadlock in
 lan743x_phy_link_status_change()

[ Upstream commit ddb826c2c92d461f290a7bab89e7c28696191875 ]

Usage of phy_ethtool_get_link_ksettings() in the link status change
handler isn't needed, and in combination with the referenced change
it results in a deadlock. Simply remove the call and replace it with
direct access to phydev->speed. The duplex argument of
lan743x_phy_update_flowcontrol() isn't used and can be removed.

Fixes: c10a485c3de5 ("phy: phy_ethtool_ksettings_get: Lock the phy for consistency")
Reported-by: Alessandro B Maurici <abmaurici@gmail.com>
Tested-by: Alessandro B Maurici <abmaurici@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/40e27f76-0ba3-dcef-ee32-a78b9df38b0f@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/microchip/lan743x_main.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 3eea8cf076c48..481f89d193f77 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -922,8 +922,7 @@ static int lan743x_phy_reset(struct lan743x_adapter *adapter)
 }
 
 static void lan743x_phy_update_flowcontrol(struct lan743x_adapter *adapter,
-					   u8 duplex, u16 local_adv,
-					   u16 remote_adv)
+					   u16 local_adv, u16 remote_adv)
 {
 	struct lan743x_phy *phy = &adapter->phy;
 	u8 cap;
@@ -951,7 +950,6 @@ static void lan743x_phy_link_status_change(struct net_device *netdev)
 
 	phy_print_status(phydev);
 	if (phydev->state == PHY_RUNNING) {
-		struct ethtool_link_ksettings ksettings;
 		int remote_advertisement = 0;
 		int local_advertisement = 0;
 
@@ -988,18 +986,14 @@ static void lan743x_phy_link_status_change(struct net_device *netdev)
 		}
 		lan743x_csr_write(adapter, MAC_CR, data);
 
-		memset(&ksettings, 0, sizeof(ksettings));
-		phy_ethtool_get_link_ksettings(netdev, &ksettings);
 		local_advertisement =
 			linkmode_adv_to_mii_adv_t(phydev->advertising);
 		remote_advertisement =
 			linkmode_adv_to_mii_adv_t(phydev->lp_advertising);
 
-		lan743x_phy_update_flowcontrol(adapter,
-					       ksettings.base.duplex,
-					       local_advertisement,
+		lan743x_phy_update_flowcontrol(adapter, local_advertisement,
 					       remote_advertisement);
-		lan743x_ptp_update_latency(adapter, ksettings.base.speed);
+		lan743x_ptp_update_latency(adapter, phydev->speed);
 	}
 }
 
-- 
GitLab


From 50162ff3c80fe8db7cfff76ecf54b9e80c5923a3 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 23 Nov 2021 16:44:02 +0100
Subject: [PATCH 1817/4878] net: phylink: Force link down and retrigger resolve
 on interface change
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 80662f4fd4771bc9c7cc4abdfbe866ebd1179621 ]

On PHY state change the phylink_resolve() function can read stale
information from the MAC and report incorrect link speed and duplex to
the kernel message log.

Example with a Marvell 88X3310 PHY connected to a SerDes port on Marvell
88E6393X switch:
- PHY driver triggers state change due to PHY interface mode being
  changed from 10gbase-r to 2500base-x due to copper change in speed
  from 10Gbps to 2.5Gbps, but the PHY itself either hasn't yet changed
  its interface to the host, or the interrupt about loss of SerDes link
  hadn't arrived yet (there can be a delay of several milliseconds for
  this), so we still think that the 10gbase-r mode is up
- phylink_resolve()
  - phylink_mac_pcs_get_state()
    - this fills in speed=10g link=up
  - interface mode is updated to 2500base-x but speed is left at 10Gbps
  - phylink_major_config()
    - interface is changed to 2500base-x
  - phylink_link_up()
    - mv88e6xxx_mac_link_up()
      - .port_set_speed_duplex()
        - speed is set to 10Gbps
    - reports "Link is Up - 10Gbps/Full" to dmesg

Afterwards when the interrupt finally arrives for mv88e6xxx, another
resolve is forced in which we get the correct speed from
phylink_mac_pcs_get_state(), but since the interface is not being
changed anymore, we don't call phylink_major_config() but only
phylink_mac_config(), which does not set speed/duplex anymore.

To fix this, we need to force the link down and trigger another resolve
on PHY interface change event.

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phylink.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 899496f089d2e..8279e08dad9db 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -644,6 +644,7 @@ static void phylink_resolve(struct work_struct *w)
 	struct phylink_link_state link_state;
 	struct net_device *ndev = pl->netdev;
 	bool mac_config = false;
+	bool retrigger = false;
 	bool cur_link_state;
 
 	mutex_lock(&pl->state_mutex);
@@ -657,6 +658,7 @@ static void phylink_resolve(struct work_struct *w)
 		link_state.link = false;
 	} else if (pl->mac_link_dropped) {
 		link_state.link = false;
+		retrigger = true;
 	} else {
 		switch (pl->cur_link_an_mode) {
 		case MLO_AN_PHY:
@@ -680,6 +682,15 @@ static void phylink_resolve(struct work_struct *w)
 
 			/* Only update if the PHY link is up */
 			if (pl->phydev && pl->phy_state.link) {
+				/* If the interface has changed, force a
+				 * link down event if the link isn't already
+				 * down, and re-resolve.
+				 */
+				if (link_state.interface !=
+				    pl->phy_state.interface) {
+					retrigger = true;
+					link_state.link = false;
+				}
 				link_state.interface = pl->phy_state.interface;
 
 				/* If we have a PHY, we need to update with
@@ -721,7 +732,7 @@ static void phylink_resolve(struct work_struct *w)
 		else
 			phylink_link_up(pl, link_state);
 	}
-	if (!link_state.link && pl->mac_link_dropped) {
+	if (!link_state.link && retrigger) {
 		pl->mac_link_dropped = false;
 		queue_work(system_power_efficient_wq, &pl->resolve);
 	}
-- 
GitLab


From 3d4937c6a328947f980ba0e7a7f03901a2ec2aa0 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 23 Nov 2021 16:44:03 +0100
Subject: [PATCH 1818/4878] net: phylink: Force retrigger in case of latched
 link-fail indicator
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit dbae3388ea9ca33bd1d5eabc3b0ef17e69c74677 ]

On mv88e6xxx 1G/2.5G PCS, the SerDes register 4.2001.2 has the following
description:
  This register bit indicates when link was lost since the last
  read. For the current link status, read this register
  back-to-back.

Thus to get current link state, we need to read the register twice.

But doing that in the link change interrupt handler would lead to
potentially ignoring link down events, which we really want to avoid.

Thus this needs to be solved in phylink's resolve, by retriggering
another resolve in the event when PCS reports link down and previous
link was up, and by re-reading PCS state if the previous link was down.

The wrong value is read when phylink requests change from sgmii to
2500base-x mode, and link won't come up. This fixes the bug.

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phylink.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 8279e08dad9db..57b1b138522e0 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -675,6 +675,19 @@ static void phylink_resolve(struct work_struct *w)
 		case MLO_AN_INBAND:
 			phylink_mac_pcs_get_state(pl, &link_state);
 
+			/* The PCS may have a latching link-fail indicator.
+			 * If the link was up, bring the link down and
+			 * re-trigger the resolve. Otherwise, re-read the
+			 * PCS state to get the current status of the link.
+			 */
+			if (!link_state.link) {
+				if (cur_link_state)
+					retrigger = true;
+				else
+					phylink_mac_pcs_get_state(pl,
+								  &link_state);
+			}
+
 			/* If we have a phy, the "up" state is the union of
 			 * both the PHY and the MAC */
 			if (pl->phydev)
-- 
GitLab


From c94cbd262b6aa3b54d73a1ed1f9c0d19df57f4ff Mon Sep 17 00:00:00 2001
From: Karsten Graul <kgraul@linux.ibm.com>
Date: Wed, 24 Nov 2021 13:32:37 +0100
Subject: [PATCH 1819/4878] net/smc: Fix NULL pointer dereferencing in
 smc_vlan_by_tcpsk()

[ Upstream commit 587acad41f1bc48e16f42bb2aca63bf323380be8 ]

Coverity reports a possible NULL dereferencing problem:

in smc_vlan_by_tcpsk():
6. returned_null: netdev_lower_get_next returns NULL (checked 29 out of 30 times).
7. var_assigned: Assigning: ndev = NULL return value from netdev_lower_get_next.
1623                ndev = (struct net_device *)netdev_lower_get_next(ndev, &lower);
CID 1468509 (#1 of 1): Dereference null return value (NULL_RETURNS)
8. dereference: Dereferencing a pointer that might be NULL ndev when calling is_vlan_dev.
1624                if (is_vlan_dev(ndev)) {

Remove the manual implementation and use netdev_walk_all_lower_dev() to
iterate over the lower devices. While on it remove an obsolete function
parameter comment.

Fixes: cb9d43f67754 ("net/smc: determine vlan_id of stacked net_device")
Suggested-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_core.c | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 109d790eaebe2..cd625b672429f 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1209,14 +1209,26 @@ static void smc_link_down_work(struct work_struct *work)
 	mutex_unlock(&lgr->llc_conf_mutex);
 }
 
-/* Determine vlan of internal TCP socket.
- * @vlan_id: address to store the determined vlan id into
- */
+static int smc_vlan_by_tcpsk_walk(struct net_device *lower_dev,
+				  struct netdev_nested_priv *priv)
+{
+	unsigned short *vlan_id = (unsigned short *)priv->data;
+
+	if (is_vlan_dev(lower_dev)) {
+		*vlan_id = vlan_dev_vlan_id(lower_dev);
+		return 1;
+	}
+
+	return 0;
+}
+
+/* Determine vlan of internal TCP socket. */
 int smc_vlan_by_tcpsk(struct socket *clcsock, struct smc_init_info *ini)
 {
 	struct dst_entry *dst = sk_dst_get(clcsock->sk);
+	struct netdev_nested_priv priv;
 	struct net_device *ndev;
-	int i, nest_lvl, rc = 0;
+	int rc = 0;
 
 	ini->vlan_id = 0;
 	if (!dst) {
@@ -1234,20 +1246,9 @@ int smc_vlan_by_tcpsk(struct socket *clcsock, struct smc_init_info *ini)
 		goto out_rel;
 	}
 
+	priv.data = (void *)&ini->vlan_id;
 	rtnl_lock();
-	nest_lvl = ndev->lower_level;
-	for (i = 0; i < nest_lvl; i++) {
-		struct list_head *lower = &ndev->adj_list.lower;
-
-		if (list_empty(lower))
-			break;
-		lower = lower->next;
-		ndev = (struct net_device *)netdev_lower_get_next(ndev, &lower);
-		if (is_vlan_dev(ndev)) {
-			ini->vlan_id = vlan_dev_vlan_id(ndev);
-			break;
-		}
-	}
+	netdev_walk_all_lower_dev(ndev, smc_vlan_by_tcpsk_walk, &priv);
 	rtnl_unlock();
 
 out_rel:
-- 
GitLab


From 12ceb52f2cc49583394bad42a39468fde9d8e0cc Mon Sep 17 00:00:00 2001
From: Guo DaXing <guodaxing@huawei.com>
Date: Wed, 24 Nov 2021 13:32:38 +0100
Subject: [PATCH 1820/4878] net/smc: Fix loop in smc_listen

[ Upstream commit 9ebb0c4b27a6158303b791b5b91e66d7665ee30e ]

The kernel_listen function in smc_listen will fail when all the available
ports are occupied.  At this point smc->clcsock->sk->sk_data_ready has
been changed to smc_clcsock_data_ready.  When we call smc_listen again,
now both smc->clcsock->sk->sk_data_ready and smc->clcsk_data_ready point
to the smc_clcsock_data_ready function.

The smc_clcsock_data_ready() function calls lsmc->clcsk_data_ready which
now points to itself resulting in an infinite loop.

This patch restores smc->clcsock->sk->sk_data_ready with the old value.

Fixes: a60a2b1e0af1 ("net/smc: reduce active tcp_listen workers")
Signed-off-by: Guo DaXing <guodaxing@huawei.com>
Acked-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index cfb5b9be0569d..a0d3f4e07b067 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1864,8 +1864,10 @@ static int smc_listen(struct socket *sock, int backlog)
 	smc->clcsock->sk->sk_user_data =
 		(void *)((uintptr_t)smc | SK_USER_DATA_NOCOPY);
 	rc = kernel_listen(smc->clcsock, backlog);
-	if (rc)
+	if (rc) {
+		smc->clcsock->sk->sk_data_ready = smc->clcsk_data_ready;
 		goto out;
+	}
 	sk->sk_max_ack_backlog = backlog;
 	sk->sk_ack_backlog = 0;
 	sk->sk_state = SMC_LISTEN;
-- 
GitLab


From f2a58ff3e3ad6104fde2561407f35a1aba5a5b7b Mon Sep 17 00:00:00 2001
From: Maurizio Lombardi <mlombard@redhat.com>
Date: Mon, 22 Nov 2021 11:08:27 +0100
Subject: [PATCH 1821/4878] nvmet: use IOCB_NOWAIT only if the filesystem
 supports it

[ Upstream commit c024b226a417c4eb9353ff500b1c823165d4d508 ]

Submit I/O requests with the IOCB_NOWAIT flag set only if
the underlying filesystem supports it.

Fixes: 50a909db36f2 ("nvmet: use IOCB_NOWAIT for file-ns buffered I/O")
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/io-cmd-file.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/target/io-cmd-file.c b/drivers/nvme/target/io-cmd-file.c
index b575997244482..c81690b2a681b 100644
--- a/drivers/nvme/target/io-cmd-file.c
+++ b/drivers/nvme/target/io-cmd-file.c
@@ -8,6 +8,7 @@
 #include <linux/uio.h>
 #include <linux/falloc.h>
 #include <linux/file.h>
+#include <linux/fs.h>
 #include "nvmet.h"
 
 #define NVMET_MAX_MPOOL_BVEC		16
@@ -266,7 +267,8 @@ static void nvmet_file_execute_rw(struct nvmet_req *req)
 
 	if (req->ns->buffered_io) {
 		if (likely(!req->f.mpool_alloc) &&
-				nvmet_file_execute_io(req, IOCB_NOWAIT))
+		    (req->ns->file->f_mode & FMODE_NOWAIT) &&
+		    nvmet_file_execute_io(req, IOCB_NOWAIT))
 			return;
 		nvmet_file_submit_buffered_io(req);
 	} else
-- 
GitLab


From 5e823dbee23cc06712d6d39dc7bb38711f407ffc Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Tue, 23 Nov 2021 12:40:00 -0800
Subject: [PATCH 1822/4878] igb: fix netpoll exit with traffic

[ Upstream commit eaeace60778e524a2820d0c0ad60bf80289e292c ]

Oleksandr brought a bug report where netpoll causes trace
messages in the log on igb.

Danielle brought this back up as still occurring, so we'll try
again.

[22038.710800] ------------[ cut here ]------------
[22038.710801] igb_poll+0x0/0x1440 [igb] exceeded budget in poll
[22038.710802] WARNING: CPU: 12 PID: 40362 at net/core/netpoll.c:155 netpoll_poll_dev+0x18a/0x1a0

As Alex suggested, change the driver to return work_done at the
exit of napi_poll, which should be safe to do in this driver
because it is not polling multiple queues in this single napi
context (multiple queues attached to one MSI-X vector). Several
other drivers contain the same simple sequence, so I hope
this will not create new problems.

Fixes: 16eb8815c235 ("igb: Refactor clean_rx_irq to reduce overhead and improve performance")
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Reported-by: Danielle Ratson <danieller@nvidia.com>
Suggested-by: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Danielle Ratson <danieller@nvidia.com>
Link: https://lore.kernel.org/r/20211123204000.1597971-1-jesse.brandeburg@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index e24fb122c03a2..d5432d1448c05 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -8032,7 +8032,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	if (likely(napi_complete_done(napi, work_done)))
 		igb_ring_irq_enable(q_vector);
 
-	return min(work_done, budget - 1);
+	return work_done;
 }
 
 /**
-- 
GitLab


From a6a5d853f1e6b731d5c4709001f71b4a35c31f1b Mon Sep 17 00:00:00 2001
From: Huang Pei <huangpei@loongson.cn>
Date: Thu, 25 Nov 2021 18:59:49 +0800
Subject: [PATCH 1823/4878] MIPS: loongson64: fix FTLB configuration

[ Upstream commit 7db5e9e9e5e6c10d7d26f8df7f8fd8841cb15ee7 ]

It turns out that 'decode_configs' -> 'set_ftlb_enable' is called under
c->cputype unset, which leaves FTLB disabled on BOTH 3A2000 and 3A3000

Fix it by calling "decode_configs" after c->cputype is initialized

Fixes: da1bd29742b1 ("MIPS: Loongson64: Probe CPU features via CPUCFG")
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/kernel/cpu-probe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 067cb3eb16141..d120201910acf 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1721,8 +1721,6 @@ static inline void decode_cpucfg(struct cpuinfo_mips *c)
 
 static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 {
-	decode_configs(c);
-
 	/* All Loongson processors covered here define ExcCode 16 as GSExc. */
 	c->options |= MIPS_CPU_GSEXCEX;
 
@@ -1783,6 +1781,8 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 		panic("Unknown Loongson Processor ID!");
 		break;
 	}
+
+	decode_configs(c);
 }
 #else
 static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu) { }
-- 
GitLab


From 3b6c71c097daff9dd724cd306042045d18fd6b03 Mon Sep 17 00:00:00 2001
From: Huang Pei <huangpei@loongson.cn>
Date: Thu, 25 Nov 2021 18:59:48 +0800
Subject: [PATCH 1824/4878] MIPS: use 3-level pgtable for 64KB page size on
 MIPS_VA_BITS_48

[ Upstream commit 41ce097f714401e6ad8f3f5eb30d7f91b0b5e495 ]

It hangup when booting Loongson 3A1000 with BOTH
CONFIG_PAGE_SIZE_64KB and CONFIG_MIPS_VA_BITS_48, that it turn
out to use 2-level pgtable instead of 3-level. 64KB page size
with 2-level pgtable only cover 42 bits VA, use 3-level pgtable
to cover all 48 bits VA(55 bits)

Fixes: 1e321fa917fb ("MIPS64: Support of at least 48 bits of SEGBITS)
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 94a748e95231b..23d756fe0fd6c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -3189,7 +3189,7 @@ config STACKTRACE_SUPPORT
 config PGTABLE_LEVELS
 	int
 	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
-	default 3 if 64BIT && !PAGE_SIZE_64KB
+	default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
 	default 2
 
 config MIPS_AUTO_PFN_OFFSET
-- 
GitLab


From 22156242b1042d5cce74f1bd20db541abdd2ecd7 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Wed, 24 Nov 2021 15:25:52 -0800
Subject: [PATCH 1825/4878] tls: splice_read: fix record type check

[ Upstream commit 520493f66f6822551aef2879cd40207074fe6980 ]

We don't support splicing control records. TLS 1.3 changes moved
the record type check into the decrypt if(). The skb may already
be decrypted and still be an alert.

Note that decrypt_skb_update() is idempotent and updates ctx->decrypted
so the if() is pointless.

Reorder the check for decryption errors with the content type check
while touching them. This part is not really a bug, because if
decryption failed in TLS 1.3 content type will be DATA, and for
TLS 1.2 it will be correct. Nevertheless its strange to touch output
before checking if the function has failed.

Fixes: fedf201e1296 ("net: tls: Refactor control message handling on recv")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tls/tls_sw.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 14cce61160a58..122d5daed8b61 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -2007,21 +2007,18 @@ ssize_t tls_sw_splice_read(struct socket *sock,  loff_t *ppos,
 	if (!skb)
 		goto splice_read_end;
 
-	if (!ctx->decrypted) {
-		err = decrypt_skb_update(sk, skb, NULL, &chunk, &zc, false);
-
-		/* splice does not support reading control messages */
-		if (ctx->control != TLS_RECORD_TYPE_DATA) {
-			err = -EINVAL;
-			goto splice_read_end;
-		}
+	err = decrypt_skb_update(sk, skb, NULL, &chunk, &zc, false);
+	if (err < 0) {
+		tls_err_abort(sk, -EBADMSG);
+		goto splice_read_end;
+	}
 
-		if (err < 0) {
-			tls_err_abort(sk, -EBADMSG);
-			goto splice_read_end;
-		}
-		ctx->decrypted = 1;
+	/* splice does not support reading control messages */
+	if (ctx->control != TLS_RECORD_TYPE_DATA) {
+		err = -EINVAL;
+		goto splice_read_end;
 	}
+
 	rxm = strp_msg(skb);
 
 	chunk = min_t(unsigned int, rxm->full_len, len);
-- 
GitLab


From e3509feb46fa15680a9c8afbcb760e962349c1e2 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Wed, 24 Nov 2021 15:25:56 -0800
Subject: [PATCH 1826/4878] tls: fix replacing proto_ops

[ Upstream commit f3911f73f51d1534f4db70b516cc1fcb6be05bae ]

We replace proto_ops whenever TLS is configured for RX. But our
replacement also overrides sendpage_locked, which will crash
unless TX is also configured. Similarly we plug both of those
in for TLS_HW (NIC crypto offload) even tho TLS_HW has a completely
different implementation for TX.

Last but not least we always plug in something based on inet_stream_ops
even though a few of the callbacks differ for IPv6 (getname, release,
bind).

Use a callback building method similar to what we do for struct proto.

Fixes: c46234ebb4d1 ("tls: RX path for ktls")
Fixes: d4ffb02dee2f ("net/tls: enable sk_msg redirect to tls socket egress")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tls/tls_main.c | 47 +++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index 32a51b20509c9..58d22d6b86ae6 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -61,7 +61,7 @@ static DEFINE_MUTEX(tcpv6_prot_mutex);
 static const struct proto *saved_tcpv4_prot;
 static DEFINE_MUTEX(tcpv4_prot_mutex);
 static struct proto tls_prots[TLS_NUM_PROTS][TLS_NUM_CONFIG][TLS_NUM_CONFIG];
-static struct proto_ops tls_sw_proto_ops;
+static struct proto_ops tls_proto_ops[TLS_NUM_PROTS][TLS_NUM_CONFIG][TLS_NUM_CONFIG];
 static void build_protos(struct proto prot[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
 			 const struct proto *base);
 
@@ -71,6 +71,8 @@ void update_sk_prot(struct sock *sk, struct tls_context *ctx)
 
 	WRITE_ONCE(sk->sk_prot,
 		   &tls_prots[ip_ver][ctx->tx_conf][ctx->rx_conf]);
+	WRITE_ONCE(sk->sk_socket->ops,
+		   &tls_proto_ops[ip_ver][ctx->tx_conf][ctx->rx_conf]);
 }
 
 int wait_on_pending_writer(struct sock *sk, long *timeo)
@@ -578,8 +580,6 @@ static int do_tls_setsockopt_conf(struct sock *sk, sockptr_t optval,
 	if (tx) {
 		ctx->sk_write_space = sk->sk_write_space;
 		sk->sk_write_space = tls_write_space;
-	} else {
-		sk->sk_socket->ops = &tls_sw_proto_ops;
 	}
 	goto out;
 
@@ -637,6 +637,39 @@ struct tls_context *tls_ctx_create(struct sock *sk)
 	return ctx;
 }
 
+static void build_proto_ops(struct proto_ops ops[TLS_NUM_CONFIG][TLS_NUM_CONFIG],
+			    const struct proto_ops *base)
+{
+	ops[TLS_BASE][TLS_BASE] = *base;
+
+	ops[TLS_SW  ][TLS_BASE] = ops[TLS_BASE][TLS_BASE];
+	ops[TLS_SW  ][TLS_BASE].sendpage_locked	= tls_sw_sendpage_locked;
+
+	ops[TLS_BASE][TLS_SW  ] = ops[TLS_BASE][TLS_BASE];
+	ops[TLS_BASE][TLS_SW  ].splice_read	= tls_sw_splice_read;
+
+	ops[TLS_SW  ][TLS_SW  ] = ops[TLS_SW  ][TLS_BASE];
+	ops[TLS_SW  ][TLS_SW  ].splice_read	= tls_sw_splice_read;
+
+#ifdef CONFIG_TLS_DEVICE
+	ops[TLS_HW  ][TLS_BASE] = ops[TLS_BASE][TLS_BASE];
+	ops[TLS_HW  ][TLS_BASE].sendpage_locked	= NULL;
+
+	ops[TLS_HW  ][TLS_SW  ] = ops[TLS_BASE][TLS_SW  ];
+	ops[TLS_HW  ][TLS_SW  ].sendpage_locked	= NULL;
+
+	ops[TLS_BASE][TLS_HW  ] = ops[TLS_BASE][TLS_SW  ];
+
+	ops[TLS_SW  ][TLS_HW  ] = ops[TLS_SW  ][TLS_SW  ];
+
+	ops[TLS_HW  ][TLS_HW  ] = ops[TLS_HW  ][TLS_SW  ];
+	ops[TLS_HW  ][TLS_HW  ].sendpage_locked	= NULL;
+#endif
+#ifdef CONFIG_TLS_TOE
+	ops[TLS_HW_RECORD][TLS_HW_RECORD] = *base;
+#endif
+}
+
 static void tls_build_proto(struct sock *sk)
 {
 	int ip_ver = sk->sk_family == AF_INET6 ? TLSV6 : TLSV4;
@@ -648,6 +681,8 @@ static void tls_build_proto(struct sock *sk)
 		mutex_lock(&tcpv6_prot_mutex);
 		if (likely(prot != saved_tcpv6_prot)) {
 			build_protos(tls_prots[TLSV6], prot);
+			build_proto_ops(tls_proto_ops[TLSV6],
+					sk->sk_socket->ops);
 			smp_store_release(&saved_tcpv6_prot, prot);
 		}
 		mutex_unlock(&tcpv6_prot_mutex);
@@ -658,6 +693,8 @@ static void tls_build_proto(struct sock *sk)
 		mutex_lock(&tcpv4_prot_mutex);
 		if (likely(prot != saved_tcpv4_prot)) {
 			build_protos(tls_prots[TLSV4], prot);
+			build_proto_ops(tls_proto_ops[TLSV4],
+					sk->sk_socket->ops);
 			smp_store_release(&saved_tcpv4_prot, prot);
 		}
 		mutex_unlock(&tcpv4_prot_mutex);
@@ -868,10 +905,6 @@ static int __init tls_register(void)
 	if (err)
 		return err;
 
-	tls_sw_proto_ops = inet_stream_ops;
-	tls_sw_proto_ops.splice_read = tls_sw_splice_read;
-	tls_sw_proto_ops.sendpage_locked   = tls_sw_sendpage_locked;
-
 	tls_device_init();
 	tcp_register_ulp(&tcp_tls_ulp_ops);
 
-- 
GitLab


From ae2659d2c670252759ee9c823c4e039c0e05a6f2 Mon Sep 17 00:00:00 2001
From: Davide Caratti <dcaratti@redhat.com>
Date: Wed, 24 Nov 2021 17:14:40 +0100
Subject: [PATCH 1827/4878] net/sched: sch_ets: don't peek at classes beyond
 'nbands'

[ Upstream commit de6d25924c2a8c2988c6a385990cafbe742061bf ]

when the number of DRR classes decreases, the round-robin active list can
contain elements that have already been freed in ets_qdisc_change(). As a
consequence, it's possible to see a NULL dereference crash, caused by the
attempt to call cl->qdisc->ops->peek(cl->qdisc) when cl->qdisc is NULL:

 BUG: kernel NULL pointer dereference, address: 0000000000000018
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 0 P4D 0
 Oops: 0000 [#1] PREEMPT SMP NOPTI
 CPU: 1 PID: 910 Comm: mausezahn Not tainted 5.16.0-rc1+ #475
 Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
 RIP: 0010:ets_qdisc_dequeue+0x129/0x2c0 [sch_ets]
 Code: c5 01 41 39 ad e4 02 00 00 0f 87 18 ff ff ff 49 8b 85 c0 02 00 00 49 39 c4 0f 84 ba 00 00 00 49 8b ad c0 02 00 00 48 8b 7d 10 <48> 8b 47 18 48 8b 40 38 0f ae e8 ff d0 48 89 c3 48 85 c0 0f 84 9d
 RSP: 0000:ffffbb36c0b5fdd8 EFLAGS: 00010287
 RAX: ffff956678efed30 RBX: 0000000000000000 RCX: 0000000000000000
 RDX: 0000000000000002 RSI: ffffffff9b938dc9 RDI: 0000000000000000
 RBP: ffff956678efed30 R08: e2f3207fe360129c R09: 0000000000000000
 R10: 0000000000000001 R11: 0000000000000001 R12: ffff956678efeac0
 R13: ffff956678efe800 R14: ffff956611545000 R15: ffff95667ac8f100
 FS:  00007f2aa9120740(0000) GS:ffff95667b800000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000018 CR3: 000000011070c000 CR4: 0000000000350ee0
 Call Trace:
  <TASK>
  qdisc_peek_dequeued+0x29/0x70 [sch_ets]
  tbf_dequeue+0x22/0x260 [sch_tbf]
  __qdisc_run+0x7f/0x630
  net_tx_action+0x290/0x4c0
  __do_softirq+0xee/0x4f8
  irq_exit_rcu+0xf4/0x130
  sysvec_apic_timer_interrupt+0x52/0xc0
  asm_sysvec_apic_timer_interrupt+0x12/0x20
 RIP: 0033:0x7f2aa7fc9ad4
 Code: b9 ff ff 48 8b 54 24 18 48 83 c4 08 48 89 ee 48 89 df 5b 5d e9 ed fc ff ff 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa <53> 48 83 ec 10 48 8b 05 10 64 33 00 48 8b 00 48 85 c0 0f 85 84 00
 RSP: 002b:00007ffe5d33fab8 EFLAGS: 00000202
 RAX: 0000000000000002 RBX: 0000561f72c31460 RCX: 0000561f72c31720
 RDX: 0000000000000002 RSI: 0000561f72c31722 RDI: 0000561f72c31720
 RBP: 000000000000002a R08: 00007ffe5d33fa40 R09: 0000000000000014
 R10: 0000000000000000 R11: 0000000000000246 R12: 0000561f7187e380
 R13: 0000000000000000 R14: 0000000000000000 R15: 0000561f72c31460
  </TASK>
 Modules linked in: sch_ets sch_tbf dummy rfkill iTCO_wdt intel_rapl_msr iTCO_vendor_support intel_rapl_common joydev virtio_balloon lpc_ich i2c_i801 i2c_smbus pcspkr ip_tables xfs libcrc32c crct10dif_pclmul crc32_pclmul crc32c_intel ahci libahci ghash_clmulni_intel serio_raw libata virtio_blk virtio_console virtio_net net_failover failover sunrpc dm_mirror dm_region_hash dm_log dm_mod
 CR2: 0000000000000018

Ensuring that 'alist' was never zeroed [1] was not sufficient, we need to
remove from the active list those elements that are no more SP nor DRR.

[1] https://lore.kernel.org/netdev/60d274838bf09777f0371253416e8af71360bc08.1633609148.git.dcaratti@redhat.com/

v3: fix race between ets_qdisc_change() and ets_qdisc_dequeue() delisting
    DRR classes beyond 'nbands' in ets_qdisc_change() with the qdisc lock
    acquired, thanks to Cong Wang.

v2: when a NULL qdisc is found in the DRR active list, try to dequeue skb
    from the next list item.

Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Fixes: dcc68b4d8084 ("net: sch_ets: Add a new Qdisc")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Link: https://lore.kernel.org/r/7a5c496eed2d62241620bdbb83eb03fb9d571c99.1637762721.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_ets.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/sched/sch_ets.c b/net/sched/sch_ets.c
index c76701ac35abf..c34cb6e81d855 100644
--- a/net/sched/sch_ets.c
+++ b/net/sched/sch_ets.c
@@ -667,12 +667,14 @@ static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt,
 			q->classes[i].deficit = quanta[i];
 		}
 	}
+	for (i = q->nbands; i < oldbands; i++) {
+		qdisc_tree_flush_backlog(q->classes[i].qdisc);
+		if (i >= q->nstrict)
+			list_del(&q->classes[i].alist);
+	}
 	q->nstrict = nstrict;
 	memcpy(q->prio2band, priomap, sizeof(priomap));
 
-	for (i = q->nbands; i < oldbands; i++)
-		qdisc_tree_flush_backlog(q->classes[i].qdisc);
-
 	for (i = 0; i < q->nbands; i++)
 		q->classes[i].quantum = quanta[i];
 
-- 
GitLab


From 6e800ee43218a56acc93676bbb3d93b74779e555 Mon Sep 17 00:00:00 2001
From: Ziyang Xuan <william.xuanziyang@huawei.com>
Date: Fri, 26 Nov 2021 09:59:42 +0800
Subject: [PATCH 1828/4878] net: vlan: fix underflow for the real_dev refcnt

[ Upstream commit 01d9cc2dea3fde3bad6d27f464eff463496e2b00 ]

Inject error before dev_hold(real_dev) in register_vlan_dev(),
and execute the following testcase:

ip link add dev dummy1 type dummy
ip link add name dummy1.100 link dummy1 type vlan id 100
ip link del dev dummy1

When the dummy netdevice is removed, we will get a WARNING as following:

=======================================================================
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 2 PID: 0 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0

and an endless loop of:

=======================================================================
unregister_netdevice: waiting for dummy1 to become free. Usage count = -1073741824

That is because dev_put(real_dev) in vlan_dev_free() be called without
dev_hold(real_dev) in register_vlan_dev(). It makes the refcnt of real_dev
underflow.

Move the dev_hold(real_dev) to vlan_dev_init() which is the call-back of
ndo_init(). That makes dev_hold() and dev_put() for vlan's real_dev
symmetrical.

Fixes: 563bcbae3ba2 ("net: vlan: fix a UAF in vlan_dev_real_dev()")
Reported-by: Petr Machata <petrm@nvidia.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Link: https://lore.kernel.org/r/20211126015942.2918542-1-william.xuanziyang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/8021q/vlan.c     | 3 ---
 net/8021q/vlan_dev.c | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index ad3780067a7d8..d12c9a8a9953e 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -181,9 +181,6 @@ int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack)
 	if (err)
 		goto out_unregister_netdev;
 
-	/* Account for reference in struct vlan_dev_priv */
-	dev_hold(real_dev);
-
 	vlan_stacked_transfer_operstate(real_dev, dev, vlan);
 	linkwatch_fire_event(dev); /* _MUST_ call rfc2863_policy() */
 
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index c7eba7dab0938..86a1c99025ea0 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -606,6 +606,9 @@ static int vlan_dev_init(struct net_device *dev)
 	if (!vlan->vlan_pcpu_stats)
 		return -ENOMEM;
 
+	/* Get vlan's reference to real_dev */
+	dev_hold(real_dev);
+
 	return 0;
 }
 
-- 
GitLab


From 215167df4512f2e7f3ace6b864a1697fcfeea03d Mon Sep 17 00:00:00 2001
From: Tony Lu <tonylu@linux.alibaba.com>
Date: Fri, 26 Nov 2021 10:41:35 +0800
Subject: [PATCH 1829/4878] net/smc: Don't call clcsock shutdown twice when smc
 shutdown

[ Upstream commit bacb6c1e47691cda4a95056c21b5487fb7199fcc ]

When applications call shutdown() with SHUT_RDWR in userspace,
smc_close_active() calls kernel_sock_shutdown(), and it is called
twice in smc_shutdown().

This fixes this by checking sk_state before do clcsock shutdown, and
avoids missing the application's call of smc_shutdown().

Link: https://lore.kernel.org/linux-s390/1f67548e-cbf6-0dce-82b5-10288a4583bd@linux.ibm.com/
Fixes: 606a63c9783a ("net/smc: Ensure the active closing peer first closes clcsock")
Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Link: https://lore.kernel.org/r/20211126024134.45693-1-tonylu@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index a0d3f4e07b067..ac8265e35b2d2 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -2098,8 +2098,10 @@ static __poll_t smc_poll(struct file *file, struct socket *sock,
 static int smc_shutdown(struct socket *sock, int how)
 {
 	struct sock *sk = sock->sk;
+	bool do_shutdown = true;
 	struct smc_sock *smc;
 	int rc = -EINVAL;
+	int old_state;
 	int rc1 = 0;
 
 	smc = smc_sk(sk);
@@ -2126,7 +2128,11 @@ static int smc_shutdown(struct socket *sock, int how)
 	}
 	switch (how) {
 	case SHUT_RDWR:		/* shutdown in both directions */
+		old_state = sk->sk_state;
 		rc = smc_close_active(smc);
+		if (old_state == SMC_ACTIVE &&
+		    sk->sk_state == SMC_PEERCLOSEWAIT1)
+			do_shutdown = false;
 		break;
 	case SHUT_WR:
 		rc = smc_close_shutdown_write(smc);
@@ -2136,7 +2142,7 @@ static int smc_shutdown(struct socket *sock, int how)
 		/* nothing more to do because peer is not involved */
 		break;
 	}
-	if (smc->clcsock)
+	if (do_shutdown && smc->clcsock)
 		rc1 = kernel_sock_shutdown(smc->clcsock, how);
 	/* map sock_shutdown_cmd constants to sk_shutdown value range */
 	sk->sk_shutdown |= how + 1;
-- 
GitLab


From 62343dadbb963cfaa9566795a9cb6ede00152a81 Mon Sep 17 00:00:00 2001
From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Fri, 26 Nov 2021 20:03:15 +0800
Subject: [PATCH 1830/4878] net: hns3: fix VF RSS failed problem after PF
 enable multi-TCs

[ Upstream commit 8d2ad993aa05c0768f00c886c9d369cd97a337ac ]

When PF is set to multi-TCs and configured mapping relationship between
priorities and TCs, the hardware will active these settings for this PF
and its VFs.

In this case when VF just uses one TC and its rx packets contain priority,
and if the priority is not mapped to TC0, as other TCs of VF is not valid,
hardware always put this kind of packets to the queue 0. It cause this kind
of packets of VF can not be used RSS function.

To fix this problem, set tc mode of all unused TCs of VF to the setting of
TC0, then rx packet with priority which map to unused TC will be direct to
TC0.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index e27af38f6b161..6e7da1dc2e8c3 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -679,9 +679,9 @@ static int hclgevf_set_rss_tc_mode(struct hclgevf_dev *hdev,  u16 rss_size)
 	roundup_size = ilog2(roundup_size);
 
 	for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++) {
-		tc_valid[i] = !!(hdev->hw_tc_map & BIT(i));
+		tc_valid[i] = 1;
 		tc_size[i] = roundup_size;
-		tc_offset[i] = rss_size * i;
+		tc_offset[i] = (hdev->hw_tc_map & BIT(i)) ? rss_size * i : 0;
 	}
 
 	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_TC_MODE, false);
-- 
GitLab


From 73115a2b38dd09ed28015a4d58b0587742fd7299 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 26 Nov 2021 19:28:41 +0200
Subject: [PATCH 1831/4878] net: mscc: ocelot: don't downgrade timestamping RX
 filters in SIOCSHWTSTAMP

[ Upstream commit 8a075464d1e9317ffae0973dfe538a7511291a06 ]

The ocelot driver, when asked to timestamp all receiving packets, 1588
v1 or NTP, says "nah, here's 1588 v2 for you".

According to this discussion:
https://patchwork.kernel.org/project/netdevbpf/patch/20211104133204.19757-8-martin.kaistra@linutronix.de/#24577647
drivers that downgrade from a wider request to a narrower response (or
even a response where the intersection with the request is empty) are
buggy, and should return -ERANGE instead. This patch fixes that.

Fixes: 4e3b0468e6d7 ("net: mscc: PTP Hardware Clock (PHC) support")
Suggested-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mscc/ocelot.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 8c45b236649a9..154d67066d012 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -811,12 +811,6 @@ int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr)
 	switch (cfg.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
 		break;
-	case HWTSTAMP_FILTER_ALL:
-	case HWTSTAMP_FILTER_SOME:
-	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
-	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
-	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
-	case HWTSTAMP_FILTER_NTP_ALL:
 	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
 	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
-- 
GitLab


From 72f2117e450b631d269ad3a5372223febe487e13 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Fri, 26 Nov 2021 19:28:45 +0200
Subject: [PATCH 1832/4878] net: mscc: ocelot: correctly report the
 timestamping RX filters in ethtool

[ Upstream commit c49a35eedfef08bffd46b53c25dbf9d6016a86ff ]

The driver doesn't support RX timestamping for non-PTP packets, but it
declares that it does. Restrict the reported RX filters to PTP v2 over
L2 and over L4.

Fixes: 4e3b0468e6d7 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mscc/ocelot.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 154d67066d012..52401915828a1 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -929,7 +929,10 @@ int ocelot_get_ts_info(struct ocelot *ocelot, int port,
 				 SOF_TIMESTAMPING_RAW_HARDWARE;
 	info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) |
 			 BIT(HWTSTAMP_TX_ONESTEP_SYNC);
-	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
+	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT);
 
 	return 0;
 }
-- 
GitLab


From 71e38a0c7cf88c9ea672b8aa9cf978e01fdb17a3 Mon Sep 17 00:00:00 2001
From: Arjun Roy <arjunroy@google.com>
Date: Thu, 10 Dec 2020 11:16:03 -0800
Subject: [PATCH 1833/4878] tcp: correctly handle increased zerocopy args
 struct size

[ Upstream commit e0fecb289ad3fd2245cdc50bf450b97fcca39884 ]

A prior patch increased the size of struct tcp_zerocopy_receive
but did not update do_tcp_getsockopt() handling to properly account
for this.

This patch simply reintroduces content erroneously cut from the
referenced prior patch that handles the new struct size.

Fixes: 18fb76ed5386 ("net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy.")
Signed-off-by: Arjun Roy <arjunroy@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index bb16c88f58a3c..63c81af41b43e 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3931,7 +3931,7 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
 	}
 #ifdef CONFIG_MMU
 	case TCP_ZEROCOPY_RECEIVE: {
-		struct tcp_zerocopy_receive zc;
+		struct tcp_zerocopy_receive zc = {};
 		int err;
 
 		if (get_user(len, optlen))
@@ -3949,7 +3949,7 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
 		lock_sock(sk);
 		err = tcp_zerocopy_receive(sk, &zc);
 		release_sock(sk);
-		if (len == sizeof(zc))
+		if (len >= offsetofend(struct tcp_zerocopy_receive, err))
 			goto zerocopy_rcv_sk_err;
 		switch (len) {
 		case offsetofend(struct tcp_zerocopy_receive, err):
-- 
GitLab


From e6ee7abd6bfe559ad9989004b34c320fd638c526 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Tue, 23 Nov 2021 11:40:47 +0000
Subject: [PATCH 1834/4878] sched/scs: Reset task stack state in bringup_cpu()

[ Upstream commit dce1ca0525bfdc8a69a9343bc714fbc19a2f04b3 ]

To hot unplug a CPU, the idle task on that CPU calls a few layers of C
code before finally leaving the kernel. When KASAN is in use, poisoned
shadow is left around for each of the active stack frames, and when
shadow call stacks are in use. When shadow call stacks (SCS) are in use
the task's saved SCS SP is left pointing at an arbitrary point within
the task's shadow call stack.

When a CPU is offlined than onlined back into the kernel, this stale
state can adversely affect execution. Stale KASAN shadow can alias new
stackframes and result in bogus KASAN warnings. A stale SCS SP is
effectively a memory leak, and prevents a portion of the shadow call
stack being used. Across a number of hotplug cycles the idle task's
entire shadow call stack can become unusable.

We previously fixed the KASAN issue in commit:

  e1b77c92981a5222 ("sched/kasan: remove stale KASAN poison after hotplug")

... by removing any stale KASAN stack poison immediately prior to
onlining a CPU.

Subsequently in commit:

  f1a0a376ca0c4ef1 ("sched/core: Initialize the idle task with preemption disabled")

... the refactoring left the KASAN and SCS cleanup in one-time idle
thread initialization code rather than something invoked prior to each
CPU being onlined, breaking both as above.

We fixed SCS (but not KASAN) in commit:

  63acd42c0d4942f7 ("sched/scs: Reset the shadow stack when idle_task_exit")

... but as this runs in the context of the idle task being offlined it's
potentially fragile.

To fix these consistently and more robustly, reset the SCS SP and KASAN
shadow of a CPU's idle task immediately before we online that CPU in
bringup_cpu(). This ensures the idle task always has a consistent state
when it is running, and removes the need to so so when exiting an idle
task.

Whenever any thread is created, dup_task_struct() will give the task a
stack which is free of KASAN shadow, and initialize the task's SCS SP,
so there's no need to specially initialize either for idle thread within
init_idle(), as this was only necessary to handle hotplug cycles.

I've tested this on arm64 with:

* gcc 11.1.0, defconfig +KASAN_INLINE, KASAN_STACK
* clang 12.0.0, defconfig +KASAN_INLINE, KASAN_STACK, SHADOW_CALL_STACK

... offlining and onlining CPUS with:

| while true; do
|   for C in /sys/devices/system/cpu/cpu*/online; do
|     echo 0 > $C;
|     echo 1 > $C;
|   done
| done

Fixes: f1a0a376ca0c4ef1 ("sched/core: Initialize the idle task with preemption disabled")
Reported-by: Qian Cai <quic_qiancai@quicinc.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Qian Cai <quic_qiancai@quicinc.com>
Link: https://lore.kernel.org/lkml/20211115113310.35693-1-mark.rutland@arm.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/cpu.c        | 7 +++++++
 kernel/sched/core.c | 4 ----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 67c22941b5f27..c06ced18f78ad 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -31,6 +31,7 @@
 #include <linux/smpboot.h>
 #include <linux/relay.h>
 #include <linux/slab.h>
+#include <linux/scs.h>
 #include <linux/percpu-rwsem.h>
 #include <linux/cpuset.h>
 
@@ -551,6 +552,12 @@ static int bringup_cpu(unsigned int cpu)
 	struct task_struct *idle = idle_thread_get(cpu);
 	int ret;
 
+	/*
+	 * Reset stale stack state from the last time this CPU was online.
+	 */
+	scs_task_reset(idle);
+	kasan_unpoison_task_stack(idle);
+
 	/*
 	 * Some architectures have to walk the irq descriptors to
 	 * setup the vector space for the cpu which comes online.
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e456cce772a3a..304aad997da11 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6523,9 +6523,6 @@ void __init init_idle(struct task_struct *idle, int cpu)
 	idle->se.exec_start = sched_clock();
 	idle->flags |= PF_IDLE;
 
-	scs_task_reset(idle);
-	kasan_unpoison_task_stack(idle);
-
 #ifdef CONFIG_SMP
 	/*
 	 * Its possible that init_idle() gets called multiple times on a task,
@@ -6681,7 +6678,6 @@ void idle_task_exit(void)
 		finish_arch_post_lock_switch();
 	}
 
-	scs_task_reset(current);
 	/* finish_cpu(), as ran on the BP, will clean up the active_mm state */
 }
 
-- 
GitLab


From 22423c966e02175a45bc010134d734e920b76cdf Mon Sep 17 00:00:00 2001
From: Weichao Guo <guoweichao@oppo.com>
Date: Sat, 18 Sep 2021 20:46:36 +0800
Subject: [PATCH 1835/4878] f2fs: set SBI_NEED_FSCK flag when inconsistent node
 block found

[ Upstream commit 6663b138ded1a59e630c9e605e42aa7fde490cdc ]

Inconsistent node block will cause a file fail to open or read,
which could make the user process crashes or stucks. Let's mark
SBI_NEED_FSCK flag to trigger a fix at next fsck time. After
unlinking the corrupted file, the user process could regenerate
a new one and work correctly.

Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/node.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 597a145c08ef5..7e625806bd4a2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1389,6 +1389,7 @@ page_hit:
 			  nid, nid_of_node(page), ino_of_node(page),
 			  ofs_of_node(page), cpver_of_node(page),
 			  next_blkaddr_of_node(page));
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		err = -EINVAL;
 out_err:
 		ClearPageUptodate(page);
-- 
GitLab


From c380062d0850d854578ef47ca714f135e6597a99 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@kernel.org>
Date: Tue, 5 Oct 2021 11:12:58 -0400
Subject: [PATCH 1836/4878] ceph: properly handle statfs on multifs setups

[ Upstream commit 8cfc0c7ed34f7929ce7e5d7c6eecf4d01ba89a84 ]

ceph_statfs currently stuffs the cluster fsid into the f_fsid field.
This was fine when we only had a single filesystem per cluster, but now
that we have multiples we need to use something that will vary between
them.

Change ceph_statfs to xor each 32-bit chunk of the fsid (aka cluster id)
into the lower bits of the statfs->f_fsid. Change the lower bits to hold
the fscid (filesystem ID within the cluster).

That should give us a value that is guaranteed to be unique between
filesystems within a cluster, and should minimize the chance of
collisions between mounts of different clusters.

URL: https://tracker.ceph.com/issues/52812
Reported-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/super.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index f33bfb255db8f..08c8d34c98091 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -52,8 +52,7 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct ceph_fs_client *fsc = ceph_inode_to_client(d_inode(dentry));
 	struct ceph_mon_client *monc = &fsc->client->monc;
 	struct ceph_statfs st;
-	u64 fsid;
-	int err;
+	int i, err;
 	u64 data_pool;
 
 	if (fsc->mdsc->mdsmap->m_num_data_pg_pools == 1) {
@@ -99,12 +98,14 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_namelen = NAME_MAX;
 
 	/* Must convert the fsid, for consistent values across arches */
+	buf->f_fsid.val[0] = 0;
 	mutex_lock(&monc->mutex);
-	fsid = le64_to_cpu(*(__le64 *)(&monc->monmap->fsid)) ^
-	       le64_to_cpu(*((__le64 *)&monc->monmap->fsid + 1));
+	for (i = 0 ; i < sizeof(monc->monmap->fsid) / sizeof(__le32) ; ++i)
+		buf->f_fsid.val[0] ^= le32_to_cpu(((__le32 *)&monc->monmap->fsid)[i]);
 	mutex_unlock(&monc->mutex);
 
-	buf->f_fsid = u64_to_fsid(fsid);
+	/* fold the fs_cluster_id into the upper bits */
+	buf->f_fsid.val[1] = monc->fs_cluster_id;
 
 	return 0;
 }
-- 
GitLab


From 5655b8bccb8a19a34c83225a1c7bf2adca50c2c3 Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Wed, 10 Nov 2021 01:47:48 -0600
Subject: [PATCH 1837/4878] smb3: do not error on fsync when readonly

[ Upstream commit 71e6864eacbef0b2645ca043cdfbac272cb6cea3 ]

Linux allows doing a flush/fsync on a file open for read-only,
but the protocol does not allow that.  If the file passed in
on the flush is read-only try to find a writeable handle for
the same inode, if that is not possible skip sending the
fsync call to the server to avoid breaking the apps.

Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Suggested-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/file.c | 35 +++++++++++++++++++++++++++++------
 1 file changed, 29 insertions(+), 6 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 67139f9d583f2..6c06870f90184 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2618,12 +2618,23 @@ int cifs_strict_fsync(struct file *file, loff_t start, loff_t end,
 	tcon = tlink_tcon(smbfile->tlink);
 	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)) {
 		server = tcon->ses->server;
-		if (server->ops->flush)
-			rc = server->ops->flush(xid, tcon, &smbfile->fid);
-		else
+		if (server->ops->flush == NULL) {
 			rc = -ENOSYS;
+			goto strict_fsync_exit;
+		}
+
+		if ((OPEN_FMODE(smbfile->f_flags) & FMODE_WRITE) == 0) {
+			smbfile = find_writable_file(CIFS_I(inode), FIND_WR_ANY);
+			if (smbfile) {
+				rc = server->ops->flush(xid, tcon, &smbfile->fid);
+				cifsFileInfo_put(smbfile);
+			} else
+				cifs_dbg(FYI, "ignore fsync for file not open for write\n");
+		} else
+			rc = server->ops->flush(xid, tcon, &smbfile->fid);
 	}
 
+strict_fsync_exit:
 	free_xid(xid);
 	return rc;
 }
@@ -2635,6 +2646,7 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	struct cifs_tcon *tcon;
 	struct TCP_Server_Info *server;
 	struct cifsFileInfo *smbfile = file->private_data;
+	struct inode *inode = file_inode(file);
 	struct cifs_sb_info *cifs_sb = CIFS_FILE_SB(file);
 
 	rc = file_write_and_wait_range(file, start, end);
@@ -2651,12 +2663,23 @@ int cifs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	tcon = tlink_tcon(smbfile->tlink);
 	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC)) {
 		server = tcon->ses->server;
-		if (server->ops->flush)
-			rc = server->ops->flush(xid, tcon, &smbfile->fid);
-		else
+		if (server->ops->flush == NULL) {
 			rc = -ENOSYS;
+			goto fsync_exit;
+		}
+
+		if ((OPEN_FMODE(smbfile->f_flags) & FMODE_WRITE) == 0) {
+			smbfile = find_writable_file(CIFS_I(inode), FIND_WR_ANY);
+			if (smbfile) {
+				rc = server->ops->flush(xid, tcon, &smbfile->fid);
+				cifsFileInfo_put(smbfile);
+			} else
+				cifs_dbg(FYI, "ignore fsync for file not open for write\n");
+		} else
+			rc = server->ops->flush(xid, tcon, &smbfile->fid);
 	}
 
+fsync_exit:
 	free_xid(xid);
 	return rc;
 }
-- 
GitLab


From fbc0514e1a343f82cfa7afa3aedda9007ccaac9b Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Tue, 23 Nov 2021 11:55:07 +0100
Subject: [PATCH 1838/4878] iommu/amd: Clarify AMD IOMMUv2 initialization
 messages

commit 717e88aad37befedfd531378b632e794e24e9afb upstream.

The messages printed on the initialization of the AMD IOMMUv2 driver
have caused some confusion in the past. Clarify the messages to lower
the confusion in the future.

Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20211123105507.7654-3-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/amd/iommu_v2.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c
index 5ecc0bc608ec6..fb61bdca4c2c1 100644
--- a/drivers/iommu/amd/iommu_v2.c
+++ b/drivers/iommu/amd/iommu_v2.c
@@ -927,10 +927,8 @@ static int __init amd_iommu_v2_init(void)
 {
 	int ret;
 
-	pr_info("AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>\n");
-
 	if (!amd_iommu_v2_supported()) {
-		pr_info("AMD IOMMUv2 functionality not available on this system\n");
+		pr_info("AMD IOMMUv2 functionality not available on this system - This is not a bug.\n");
 		/*
 		 * Load anyway to provide the symbols to other modules
 		 * which may use AMD IOMMUv2 optionally.
@@ -947,6 +945,8 @@ static int __init amd_iommu_v2_init(void)
 
 	amd_iommu_register_ppr_notifier(&ppr_nb);
 
+	pr_info("AMD IOMMUv2 loaded and initialized\n");
+
 	return 0;
 
 out:
-- 
GitLab


From 4fd0ad08ee332d7b61e0fc7fabead1fb57554065 Mon Sep 17 00:00:00 2001
From: Stefano Garzarella <sgarzare@redhat.com>
Date: Mon, 22 Nov 2021 17:35:24 +0100
Subject: [PATCH 1839/4878] vhost/vsock: fix incorrect used length reported to
 the guest

commit 49d8c5ffad07ca014cfae72a1b9b8c52b6ad9cb8 upstream.

The "used length" reported by calling vhost_add_used() must be the
number of bytes written by the device (using "in" buffers).

In vhost_vsock_handle_tx_kick() the device only reads the guest
buffers (they are all "out" buffers), without writing anything,
so we must pass 0 as "used length" to comply virtio spec.

Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko")
Cc: stable@vger.kernel.org
Reported-by: Halil Pasic <pasic@linux.ibm.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20211122163525.294024-2-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/vhost/vsock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index a483cec31d5cb..5cd1ee66d2326 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -494,7 +494,7 @@ static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
 			virtio_transport_free_pkt(pkt);
 
 		len += sizeof(pkt->hdr);
-		vhost_add_used(vq, head, len);
+		vhost_add_used(vq, head, 0);
 		total_len += len;
 		added = true;
 	} while(likely(!vhost_exceeds_weight(vq, ++pkts, total_len)));
-- 
GitLab


From 406f2d5fe368d440fd4e262188a6640f92804c5d Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Fri, 26 Nov 2021 13:35:26 -0500
Subject: [PATCH 1840/4878] tracing: Check pid filtering when creating events

commit 6cb206508b621a9a0a2c35b60540e399225c8243 upstream.

When pid filtering is activated in an instance, all of the events trace
files for that instance has the PID_FILTER flag set. This determines
whether or not pid filtering needs to be done on the event, otherwise the
event is executed as normal.

If pid filtering is enabled when an event is created (via a dynamic event
or modules), its flag is not updated to reflect the current state, and the
events are not filtered properly.

Cc: stable@vger.kernel.org
Fixes: 3fdaf80f4a836 ("tracing: Implement event pid filtering")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index ab3cb67b869e5..7cc5f0a77c3cc 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -2462,12 +2462,22 @@ static struct trace_event_file *
 trace_create_new_event(struct trace_event_call *call,
 		       struct trace_array *tr)
 {
+	struct trace_pid_list *no_pid_list;
+	struct trace_pid_list *pid_list;
 	struct trace_event_file *file;
 
 	file = kmem_cache_alloc(file_cachep, GFP_TRACE);
 	if (!file)
 		return NULL;
 
+	pid_list = rcu_dereference_protected(tr->filtered_pids,
+					     lockdep_is_held(&event_mutex));
+	no_pid_list = rcu_dereference_protected(tr->filtered_no_pids,
+					     lockdep_is_held(&event_mutex));
+
+	if (pid_list || no_pid_list)
+		file->flags |= EVENT_FILE_FL_PID_FILTER;
+
 	file->event_call = call;
 	file->tr = tr;
 	atomic_set(&file->sm_ref, 0);
-- 
GitLab


From b98284aa3fc520e79e59753855c40f63b8c5389f Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Wed, 12 May 2021 08:22:10 +0200
Subject: [PATCH 1841/4878] xen: sync include/xen/interface/io/ring.h with
 Xen's newest version

commit 629a5d87e26fe96bcaab44cbb81f5866af6f7008 upstream.

Sync include/xen/interface/io/ring.h with Xen's newest version in
order to get the RING_COPY_RESPONSE() and RING_RESPONSE_PROD_OVERFLOW()
macros.

Note that this will correct the wrong license info by adding the
missing original copyright notice.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/xen/interface/io/ring.h | 278 ++++++++++++++++++--------------
 1 file changed, 156 insertions(+), 122 deletions(-)

diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index 2af7a1cd66589..b39cdbc522ec7 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -1,21 +1,53 @@
-/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * ring.h
  *
  * Shared producer-consumer ring macros.
  *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
  * Tim Deegan and Andrew Warfield November 2004.
  */
 
 #ifndef __XEN_PUBLIC_IO_RING_H__
 #define __XEN_PUBLIC_IO_RING_H__
 
+/*
+ * When #include'ing this header, you need to provide the following
+ * declaration upfront:
+ * - standard integers types (uint8_t, uint16_t, etc)
+ * They are provided by stdint.h of the standard headers.
+ *
+ * In addition, if you intend to use the FLEX macros, you also need to
+ * provide the following, before invoking the FLEX macros:
+ * - size_t
+ * - memcpy
+ * - grant_ref_t
+ * These declarations are provided by string.h of the standard headers,
+ * and grant_table.h from the Xen public headers.
+ */
+
 #include <xen/interface/grant_table.h>
 
 typedef unsigned int RING_IDX;
 
 /* Round a 32-bit unsigned constant down to the nearest power of two. */
-#define __RD2(_x)  (((_x) & 0x00000002) ? 0x2		       : ((_x) & 0x1))
+#define __RD2(_x)  (((_x) & 0x00000002) ? 0x2                  : ((_x) & 0x1))
 #define __RD4(_x)  (((_x) & 0x0000000c) ? __RD2((_x)>>2)<<2    : __RD2(_x))
 #define __RD8(_x)  (((_x) & 0x000000f0) ? __RD4((_x)>>4)<<4    : __RD4(_x))
 #define __RD16(_x) (((_x) & 0x0000ff00) ? __RD8((_x)>>8)<<8    : __RD8(_x))
@@ -27,82 +59,79 @@ typedef unsigned int RING_IDX;
  * A ring contains as many entries as will fit, rounded down to the nearest
  * power of two (so we can mask with (size-1) to loop around).
  */
-#define __CONST_RING_SIZE(_s, _sz)				\
-	(__RD32(((_sz) - offsetof(struct _s##_sring, ring)) /	\
-		sizeof(((struct _s##_sring *)0)->ring[0])))
-
+#define __CONST_RING_SIZE(_s, _sz) \
+    (__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \
+	    sizeof(((struct _s##_sring *)0)->ring[0])))
 /*
  * The same for passing in an actual pointer instead of a name tag.
  */
-#define __RING_SIZE(_s, _sz)						\
-	(__RD32(((_sz) - (long)&(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0])))
+#define __RING_SIZE(_s, _sz) \
+    (__RD32(((_sz) - (long)(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0])))
 
 /*
  * Macros to make the correct C datatypes for a new kind of ring.
  *
  * To make a new ring datatype, you need to have two message structures,
- * let's say struct request, and struct response already defined.
+ * let's say request_t, and response_t already defined.
  *
  * In a header where you want the ring datatype declared, you then do:
  *
- *     DEFINE_RING_TYPES(mytag, struct request, struct response);
+ *     DEFINE_RING_TYPES(mytag, request_t, response_t);
  *
  * These expand out to give you a set of types, as you can see below.
  * The most important of these are:
  *
- *     struct mytag_sring      - The shared ring.
- *     struct mytag_front_ring - The 'front' half of the ring.
- *     struct mytag_back_ring  - The 'back' half of the ring.
+ *     mytag_sring_t      - The shared ring.
+ *     mytag_front_ring_t - The 'front' half of the ring.
+ *     mytag_back_ring_t  - The 'back' half of the ring.
  *
  * To initialize a ring in your code you need to know the location and size
  * of the shared memory area (PAGE_SIZE, for instance). To initialise
  * the front half:
  *
- *     struct mytag_front_ring front_ring;
- *     SHARED_RING_INIT((struct mytag_sring *)shared_page);
- *     FRONT_RING_INIT(&front_ring, (struct mytag_sring *)shared_page,
- *		       PAGE_SIZE);
+ *     mytag_front_ring_t front_ring;
+ *     SHARED_RING_INIT((mytag_sring_t *)shared_page);
+ *     FRONT_RING_INIT(&front_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
  *
  * Initializing the back follows similarly (note that only the front
  * initializes the shared ring):
  *
- *     struct mytag_back_ring back_ring;
- *     BACK_RING_INIT(&back_ring, (struct mytag_sring *)shared_page,
- *		      PAGE_SIZE);
+ *     mytag_back_ring_t back_ring;
+ *     BACK_RING_INIT(&back_ring, (mytag_sring_t *)shared_page, PAGE_SIZE);
  */
 
-#define DEFINE_RING_TYPES(__name, __req_t, __rsp_t)			\
-									\
-/* Shared ring entry */							\
-union __name##_sring_entry {						\
-    __req_t req;							\
-    __rsp_t rsp;							\
-};									\
-									\
-/* Shared ring page */							\
-struct __name##_sring {							\
-    RING_IDX req_prod, req_event;					\
-    RING_IDX rsp_prod, rsp_event;					\
-    uint8_t  pad[48];							\
-    union __name##_sring_entry ring[1]; /* variable-length */		\
-};									\
-									\
-/* "Front" end's private variables */					\
-struct __name##_front_ring {						\
-    RING_IDX req_prod_pvt;						\
-    RING_IDX rsp_cons;							\
-    unsigned int nr_ents;						\
-    struct __name##_sring *sring;					\
-};									\
-									\
-/* "Back" end's private variables */					\
-struct __name##_back_ring {						\
-    RING_IDX rsp_prod_pvt;						\
-    RING_IDX req_cons;							\
-    unsigned int nr_ents;						\
-    struct __name##_sring *sring;					\
-};
-
+#define DEFINE_RING_TYPES(__name, __req_t, __rsp_t)                     \
+                                                                        \
+/* Shared ring entry */                                                 \
+union __name##_sring_entry {                                            \
+    __req_t req;                                                        \
+    __rsp_t rsp;                                                        \
+};                                                                      \
+                                                                        \
+/* Shared ring page */                                                  \
+struct __name##_sring {                                                 \
+    RING_IDX req_prod, req_event;                                       \
+    RING_IDX rsp_prod, rsp_event;                                       \
+    uint8_t __pad[48];                                                  \
+    union __name##_sring_entry ring[1]; /* variable-length */           \
+};                                                                      \
+                                                                        \
+/* "Front" end's private variables */                                   \
+struct __name##_front_ring {                                            \
+    RING_IDX req_prod_pvt;                                              \
+    RING_IDX rsp_cons;                                                  \
+    unsigned int nr_ents;                                               \
+    struct __name##_sring *sring;                                       \
+};                                                                      \
+                                                                        \
+/* "Back" end's private variables */                                    \
+struct __name##_back_ring {                                             \
+    RING_IDX rsp_prod_pvt;                                              \
+    RING_IDX req_cons;                                                  \
+    unsigned int nr_ents;                                               \
+    struct __name##_sring *sring;                                       \
+};                                                                      \
+                                                                        \
 /*
  * Macros for manipulating rings.
  *
@@ -119,94 +148,99 @@ struct __name##_back_ring {						\
  */
 
 /* Initialising empty rings */
-#define SHARED_RING_INIT(_s) do {					\
-    (_s)->req_prod  = (_s)->rsp_prod  = 0;				\
-    (_s)->req_event = (_s)->rsp_event = 1;				\
-    memset((_s)->pad, 0, sizeof((_s)->pad));				\
+#define SHARED_RING_INIT(_s) do {                                       \
+    (_s)->req_prod  = (_s)->rsp_prod  = 0;                              \
+    (_s)->req_event = (_s)->rsp_event = 1;                              \
+    (void)memset((_s)->__pad, 0, sizeof((_s)->__pad));                  \
 } while(0)
 
-#define FRONT_RING_ATTACH(_r, _s, _i, __size) do {			\
-    (_r)->req_prod_pvt = (_i);						\
-    (_r)->rsp_cons = (_i);						\
-    (_r)->nr_ents = __RING_SIZE(_s, __size);				\
-    (_r)->sring = (_s);							\
+#define FRONT_RING_ATTACH(_r, _s, _i, __size) do {                      \
+    (_r)->req_prod_pvt = (_i);                                          \
+    (_r)->rsp_cons = (_i);                                              \
+    (_r)->nr_ents = __RING_SIZE(_s, __size);                            \
+    (_r)->sring = (_s);                                                 \
 } while (0)
 
 #define FRONT_RING_INIT(_r, _s, __size) FRONT_RING_ATTACH(_r, _s, 0, __size)
 
-#define BACK_RING_ATTACH(_r, _s, _i, __size) do {			\
-    (_r)->rsp_prod_pvt = (_i);						\
-    (_r)->req_cons = (_i);						\
-    (_r)->nr_ents = __RING_SIZE(_s, __size);				\
-    (_r)->sring = (_s);							\
+#define BACK_RING_ATTACH(_r, _s, _i, __size) do {                       \
+    (_r)->rsp_prod_pvt = (_i);                                          \
+    (_r)->req_cons = (_i);                                              \
+    (_r)->nr_ents = __RING_SIZE(_s, __size);                            \
+    (_r)->sring = (_s);                                                 \
 } while (0)
 
 #define BACK_RING_INIT(_r, _s, __size) BACK_RING_ATTACH(_r, _s, 0, __size)
 
 /* How big is this ring? */
-#define RING_SIZE(_r)							\
+#define RING_SIZE(_r)                                                   \
     ((_r)->nr_ents)
 
 /* Number of free requests (for use on front side only). */
-#define RING_FREE_REQUESTS(_r)						\
+#define RING_FREE_REQUESTS(_r)                                          \
     (RING_SIZE(_r) - ((_r)->req_prod_pvt - (_r)->rsp_cons))
 
 /* Test if there is an empty slot available on the front ring.
  * (This is only meaningful from the front. )
  */
-#define RING_FULL(_r)							\
+#define RING_FULL(_r)                                                   \
     (RING_FREE_REQUESTS(_r) == 0)
 
 /* Test if there are outstanding messages to be processed on a ring. */
-#define RING_HAS_UNCONSUMED_RESPONSES(_r)				\
+#define RING_HAS_UNCONSUMED_RESPONSES(_r)                               \
     ((_r)->sring->rsp_prod - (_r)->rsp_cons)
 
-#define RING_HAS_UNCONSUMED_REQUESTS(_r)				\
-    ({									\
-	unsigned int req = (_r)->sring->req_prod - (_r)->req_cons;	\
-	unsigned int rsp = RING_SIZE(_r) -				\
-			   ((_r)->req_cons - (_r)->rsp_prod_pvt);	\
-	req < rsp ? req : rsp;						\
-    })
+#define RING_HAS_UNCONSUMED_REQUESTS(_r) ({                             \
+    unsigned int req = (_r)->sring->req_prod - (_r)->req_cons;          \
+    unsigned int rsp = RING_SIZE(_r) -                                  \
+        ((_r)->req_cons - (_r)->rsp_prod_pvt);                          \
+    req < rsp ? req : rsp;                                              \
+})
 
 /* Direct access to individual ring elements, by index. */
-#define RING_GET_REQUEST(_r, _idx)					\
+#define RING_GET_REQUEST(_r, _idx)                                      \
     (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req))
 
+#define RING_GET_RESPONSE(_r, _idx)                                     \
+    (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
+
 /*
- * Get a local copy of a request.
+ * Get a local copy of a request/response.
  *
- * Use this in preference to RING_GET_REQUEST() so all processing is
+ * Use this in preference to RING_GET_{REQUEST,RESPONSE}() so all processing is
  * done on a local copy that cannot be modified by the other end.
  *
  * Note that https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 may cause this
- * to be ineffective where _req is a struct which consists of only bitfields.
+ * to be ineffective where dest is a struct which consists of only bitfields.
  */
-#define RING_COPY_REQUEST(_r, _idx, _req) do {				\
-	/* Use volatile to force the copy into _req. */			\
-	*(_req) = *(volatile typeof(_req))RING_GET_REQUEST(_r, _idx);	\
+#define RING_COPY_(type, r, idx, dest) do {				\
+	/* Use volatile to force the copy into dest. */			\
+	*(dest) = *(volatile typeof(dest))RING_GET_##type(r, idx);	\
 } while (0)
 
-#define RING_GET_RESPONSE(_r, _idx)					\
-    (&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
+#define RING_COPY_REQUEST(r, idx, req)  RING_COPY_(REQUEST, r, idx, req)
+#define RING_COPY_RESPONSE(r, idx, rsp) RING_COPY_(RESPONSE, r, idx, rsp)
 
 /* Loop termination condition: Would the specified index overflow the ring? */
-#define RING_REQUEST_CONS_OVERFLOW(_r, _cons)				\
+#define RING_REQUEST_CONS_OVERFLOW(_r, _cons)                           \
     (((_cons) - (_r)->rsp_prod_pvt) >= RING_SIZE(_r))
 
 /* Ill-behaved frontend determination: Can there be this many requests? */
-#define RING_REQUEST_PROD_OVERFLOW(_r, _prod)               \
+#define RING_REQUEST_PROD_OVERFLOW(_r, _prod)                           \
     (((_prod) - (_r)->rsp_prod_pvt) > RING_SIZE(_r))
 
+/* Ill-behaved backend determination: Can there be this many responses? */
+#define RING_RESPONSE_PROD_OVERFLOW(_r, _prod)                          \
+    (((_prod) - (_r)->rsp_cons) > RING_SIZE(_r))
 
-#define RING_PUSH_REQUESTS(_r) do {					\
-    virt_wmb(); /* back sees requests /before/ updated producer index */	\
-    (_r)->sring->req_prod = (_r)->req_prod_pvt;				\
+#define RING_PUSH_REQUESTS(_r) do {                                     \
+    virt_wmb(); /* back sees requests /before/ updated producer index */\
+    (_r)->sring->req_prod = (_r)->req_prod_pvt;                         \
 } while (0)
 
-#define RING_PUSH_RESPONSES(_r) do {					\
-    virt_wmb(); /* front sees responses /before/ updated producer index */	\
-    (_r)->sring->rsp_prod = (_r)->rsp_prod_pvt;				\
+#define RING_PUSH_RESPONSES(_r) do {                                    \
+    virt_wmb(); /* front sees resps /before/ updated producer index */  \
+    (_r)->sring->rsp_prod = (_r)->rsp_prod_pvt;                         \
 } while (0)
 
 /*
@@ -239,40 +273,40 @@ struct __name##_back_ring {						\
  *  field appropriately.
  */
 
-#define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do {		\
-    RING_IDX __old = (_r)->sring->req_prod;				\
-    RING_IDX __new = (_r)->req_prod_pvt;				\
-    virt_wmb(); /* back sees requests /before/ updated producer index */	\
-    (_r)->sring->req_prod = __new;					\
-    virt_mb(); /* back sees new requests /before/ we check req_event */	\
-    (_notify) = ((RING_IDX)(__new - (_r)->sring->req_event) <		\
-		 (RING_IDX)(__new - __old));				\
+#define RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(_r, _notify) do {           \
+    RING_IDX __old = (_r)->sring->req_prod;                             \
+    RING_IDX __new = (_r)->req_prod_pvt;                                \
+    virt_wmb(); /* back sees requests /before/ updated producer index */\
+    (_r)->sring->req_prod = __new;                                      \
+    virt_mb(); /* back sees new requests /before/ we check req_event */ \
+    (_notify) = ((RING_IDX)(__new - (_r)->sring->req_event) <           \
+                 (RING_IDX)(__new - __old));                            \
 } while (0)
 
-#define RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(_r, _notify) do {		\
-    RING_IDX __old = (_r)->sring->rsp_prod;				\
-    RING_IDX __new = (_r)->rsp_prod_pvt;				\
-    virt_wmb(); /* front sees responses /before/ updated producer index */	\
-    (_r)->sring->rsp_prod = __new;					\
-    virt_mb(); /* front sees new responses /before/ we check rsp_event */	\
-    (_notify) = ((RING_IDX)(__new - (_r)->sring->rsp_event) <		\
-		 (RING_IDX)(__new - __old));				\
+#define RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(_r, _notify) do {          \
+    RING_IDX __old = (_r)->sring->rsp_prod;                             \
+    RING_IDX __new = (_r)->rsp_prod_pvt;                                \
+    virt_wmb(); /* front sees resps /before/ updated producer index */  \
+    (_r)->sring->rsp_prod = __new;                                      \
+    virt_mb(); /* front sees new resps /before/ we check rsp_event */   \
+    (_notify) = ((RING_IDX)(__new - (_r)->sring->rsp_event) <           \
+                 (RING_IDX)(__new - __old));                            \
 } while (0)
 
-#define RING_FINAL_CHECK_FOR_REQUESTS(_r, _work_to_do) do {		\
-    (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r);			\
-    if (_work_to_do) break;						\
-    (_r)->sring->req_event = (_r)->req_cons + 1;			\
-    virt_mb();								\
-    (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r);			\
+#define RING_FINAL_CHECK_FOR_REQUESTS(_r, _work_to_do) do {             \
+    (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r);                   \
+    if (_work_to_do) break;                                             \
+    (_r)->sring->req_event = (_r)->req_cons + 1;                        \
+    virt_mb();                                                          \
+    (_work_to_do) = RING_HAS_UNCONSUMED_REQUESTS(_r);                   \
 } while (0)
 
-#define RING_FINAL_CHECK_FOR_RESPONSES(_r, _work_to_do) do {		\
-    (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r);			\
-    if (_work_to_do) break;						\
-    (_r)->sring->rsp_event = (_r)->rsp_cons + 1;			\
-    virt_mb();								\
-    (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r);			\
+#define RING_FINAL_CHECK_FOR_RESPONSES(_r, _work_to_do) do {            \
+    (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r);                  \
+    if (_work_to_do) break;                                             \
+    (_r)->sring->rsp_event = (_r)->rsp_cons + 1;                        \
+    virt_mb();                                                          \
+    (_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r);                  \
 } while (0)
 
 
-- 
GitLab


From 273f04d5d135c5a00f2b8666f51c2fe87b38bcb7 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 30 Jul 2021 12:38:52 +0200
Subject: [PATCH 1842/4878] xen/blkfront: read response from backend only once
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 71b66243f9898d0e54296b4e7035fb33cdcb0707 upstream.

In order to avoid problems in case the backend is modifying a response
on the ring page while the frontend has already seen it, just read the
response into a local buffer in one go and then operate on that buffer
only.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20210730103854.12681-2-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/xen-blkfront.c | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 10078a7435644..44a8dd248d675 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1557,7 +1557,7 @@ static bool blkif_completion(unsigned long *id,
 static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 {
 	struct request *req;
-	struct blkif_response *bret;
+	struct blkif_response bret;
 	RING_IDX i, rp;
 	unsigned long flags;
 	struct blkfront_ring_info *rinfo = (struct blkfront_ring_info *)dev_id;
@@ -1574,8 +1574,9 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 	for (i = rinfo->ring.rsp_cons; i != rp; i++) {
 		unsigned long id;
 
-		bret = RING_GET_RESPONSE(&rinfo->ring, i);
-		id   = bret->id;
+		RING_COPY_RESPONSE(&rinfo->ring, i, &bret);
+		id = bret.id;
+
 		/*
 		 * The backend has messed up and given us an id that we would
 		 * never have given to it (we stamp it up to BLK_RING_SIZE -
@@ -1583,39 +1584,39 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		 */
 		if (id >= BLK_RING_SIZE(info)) {
 			WARN(1, "%s: response to %s has incorrect id (%ld)\n",
-			     info->gd->disk_name, op_name(bret->operation), id);
+			     info->gd->disk_name, op_name(bret.operation), id);
 			/* We can't safely get the 'struct request' as
 			 * the id is busted. */
 			continue;
 		}
 		req  = rinfo->shadow[id].request;
 
-		if (bret->operation != BLKIF_OP_DISCARD) {
+		if (bret.operation != BLKIF_OP_DISCARD) {
 			/*
 			 * We may need to wait for an extra response if the
 			 * I/O request is split in 2
 			 */
-			if (!blkif_completion(&id, rinfo, bret))
+			if (!blkif_completion(&id, rinfo, &bret))
 				continue;
 		}
 
 		if (add_id_to_freelist(rinfo, id)) {
 			WARN(1, "%s: response to %s (id %ld) couldn't be recycled!\n",
-			     info->gd->disk_name, op_name(bret->operation), id);
+			     info->gd->disk_name, op_name(bret.operation), id);
 			continue;
 		}
 
-		if (bret->status == BLKIF_RSP_OKAY)
+		if (bret.status == BLKIF_RSP_OKAY)
 			blkif_req(req)->error = BLK_STS_OK;
 		else
 			blkif_req(req)->error = BLK_STS_IOERR;
 
-		switch (bret->operation) {
+		switch (bret.operation) {
 		case BLKIF_OP_DISCARD:
-			if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
+			if (unlikely(bret.status == BLKIF_RSP_EOPNOTSUPP)) {
 				struct request_queue *rq = info->rq;
 				printk(KERN_WARNING "blkfront: %s: %s op failed\n",
-					   info->gd->disk_name, op_name(bret->operation));
+					   info->gd->disk_name, op_name(bret.operation));
 				blkif_req(req)->error = BLK_STS_NOTSUPP;
 				info->feature_discard = 0;
 				info->feature_secdiscard = 0;
@@ -1625,15 +1626,15 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 			break;
 		case BLKIF_OP_FLUSH_DISKCACHE:
 		case BLKIF_OP_WRITE_BARRIER:
-			if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
+			if (unlikely(bret.status == BLKIF_RSP_EOPNOTSUPP)) {
 				printk(KERN_WARNING "blkfront: %s: %s op failed\n",
-				       info->gd->disk_name, op_name(bret->operation));
+				       info->gd->disk_name, op_name(bret.operation));
 				blkif_req(req)->error = BLK_STS_NOTSUPP;
 			}
-			if (unlikely(bret->status == BLKIF_RSP_ERROR &&
+			if (unlikely(bret.status == BLKIF_RSP_ERROR &&
 				     rinfo->shadow[id].req.u.rw.nr_segments == 0)) {
 				printk(KERN_WARNING "blkfront: %s: empty %s op failed\n",
-				       info->gd->disk_name, op_name(bret->operation));
+				       info->gd->disk_name, op_name(bret.operation));
 				blkif_req(req)->error = BLK_STS_NOTSUPP;
 			}
 			if (unlikely(blkif_req(req)->error)) {
@@ -1646,9 +1647,9 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 			fallthrough;
 		case BLKIF_OP_READ:
 		case BLKIF_OP_WRITE:
-			if (unlikely(bret->status != BLKIF_RSP_OKAY))
+			if (unlikely(bret.status != BLKIF_RSP_OKAY))
 				dev_dbg(&info->xbdev->dev, "Bad return from blkdev data "
-					"request: %x\n", bret->status);
+					"request: %x\n", bret.status);
 
 			break;
 		default:
-- 
GitLab


From 8e147855fcf275f30dbc93e1a8f4031724e7ad13 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 30 Jul 2021 12:38:53 +0200
Subject: [PATCH 1843/4878] xen/blkfront: don't take local copy of a request
 from the ring page
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 8f5a695d99000fc3aa73934d7ced33cfc64dcdab upstream.

In order to avoid a malicious backend being able to influence the local
copy of a request build the request locally first and then copy it to
the ring page instead of doing it the other way round as today.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20210730103854.12681-3-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/xen-blkfront.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 44a8dd248d675..0eb957b7dfb38 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -546,7 +546,7 @@ static unsigned long blkif_ring_get_request(struct blkfront_ring_info *rinfo,
 	rinfo->shadow[id].status = REQ_WAITING;
 	rinfo->shadow[id].associated_id = NO_ASSOCIATED_ID;
 
-	(*ring_req)->u.rw.id = id;
+	rinfo->shadow[id].req.u.rw.id = id;
 
 	return id;
 }
@@ -554,11 +554,12 @@ static unsigned long blkif_ring_get_request(struct blkfront_ring_info *rinfo,
 static int blkif_queue_discard_req(struct request *req, struct blkfront_ring_info *rinfo)
 {
 	struct blkfront_info *info = rinfo->dev_info;
-	struct blkif_request *ring_req;
+	struct blkif_request *ring_req, *final_ring_req;
 	unsigned long id;
 
 	/* Fill out a communications ring structure. */
-	id = blkif_ring_get_request(rinfo, req, &ring_req);
+	id = blkif_ring_get_request(rinfo, req, &final_ring_req);
+	ring_req = &rinfo->shadow[id].req;
 
 	ring_req->operation = BLKIF_OP_DISCARD;
 	ring_req->u.discard.nr_sectors = blk_rq_sectors(req);
@@ -569,8 +570,8 @@ static int blkif_queue_discard_req(struct request *req, struct blkfront_ring_inf
 	else
 		ring_req->u.discard.flag = 0;
 
-	/* Keep a private copy so we can reissue requests when recovering. */
-	rinfo->shadow[id].req = *ring_req;
+	/* Copy the request to the ring page. */
+	*final_ring_req = *ring_req;
 
 	return 0;
 }
@@ -703,6 +704,7 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 {
 	struct blkfront_info *info = rinfo->dev_info;
 	struct blkif_request *ring_req, *extra_ring_req = NULL;
+	struct blkif_request *final_ring_req, *final_extra_ring_req = NULL;
 	unsigned long id, extra_id = NO_ASSOCIATED_ID;
 	bool require_extra_req = false;
 	int i;
@@ -747,7 +749,8 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 	}
 
 	/* Fill out a communications ring structure. */
-	id = blkif_ring_get_request(rinfo, req, &ring_req);
+	id = blkif_ring_get_request(rinfo, req, &final_ring_req);
+	ring_req = &rinfo->shadow[id].req;
 
 	num_sg = blk_rq_map_sg(req->q, req, rinfo->shadow[id].sg);
 	num_grant = 0;
@@ -798,7 +801,9 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 		ring_req->u.rw.nr_segments = num_grant;
 		if (unlikely(require_extra_req)) {
 			extra_id = blkif_ring_get_request(rinfo, req,
-							  &extra_ring_req);
+							  &final_extra_ring_req);
+			extra_ring_req = &rinfo->shadow[extra_id].req;
+
 			/*
 			 * Only the first request contains the scatter-gather
 			 * list.
@@ -840,10 +845,10 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 	if (setup.segments)
 		kunmap_atomic(setup.segments);
 
-	/* Keep a private copy so we can reissue requests when recovering. */
-	rinfo->shadow[id].req = *ring_req;
+	/* Copy request(s) to the ring page. */
+	*final_ring_req = *ring_req;
 	if (unlikely(require_extra_req))
-		rinfo->shadow[extra_id].req = *extra_ring_req;
+		*final_extra_ring_req = *extra_ring_req;
 
 	if (new_persistent_gnts)
 		gnttab_free_grant_references(setup.gref_head);
-- 
GitLab


From 1ffb20f0527dab03c17f0182ec6a63b9301af5f1 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 30 Jul 2021 12:38:54 +0200
Subject: [PATCH 1844/4878] xen/blkfront: don't trust the backend response data
 blindly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit b94e4b147fd1992ad450e1fea1fdaa3738753373 upstream.

Today blkfront will trust the backend to send only sane response data.
In order to avoid privilege escalations or crashes in case of malicious
backends verify the data to be within expected limits. Especially make
sure that the response always references an outstanding request.

Introduce a new state of the ring BLKIF_STATE_ERROR which will be
switched to in case an inconsistency is being detected. Recovering from
this state is possible only via removing and adding the virtual device
again (e.g. via a suspend/resume cycle).

Make all warning messages issued due to valid error responses rate
limited in order to avoid message floods being triggered by a malicious
backend.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Link: https://lore.kernel.org/r/20210730103854.12681-4-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/xen-blkfront.c | 70 +++++++++++++++++++++++++++---------
 1 file changed, 53 insertions(+), 17 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 0eb957b7dfb38..ff7b62597b525 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -80,6 +80,7 @@ enum blkif_state {
 	BLKIF_STATE_DISCONNECTED,
 	BLKIF_STATE_CONNECTED,
 	BLKIF_STATE_SUSPENDED,
+	BLKIF_STATE_ERROR,
 };
 
 struct grant {
@@ -89,6 +90,7 @@ struct grant {
 };
 
 enum blk_req_status {
+	REQ_PROCESSING,
 	REQ_WAITING,
 	REQ_DONE,
 	REQ_ERROR,
@@ -543,7 +545,7 @@ static unsigned long blkif_ring_get_request(struct blkfront_ring_info *rinfo,
 
 	id = get_id_from_freelist(rinfo);
 	rinfo->shadow[id].request = req;
-	rinfo->shadow[id].status = REQ_WAITING;
+	rinfo->shadow[id].status = REQ_PROCESSING;
 	rinfo->shadow[id].associated_id = NO_ASSOCIATED_ID;
 
 	rinfo->shadow[id].req.u.rw.id = id;
@@ -572,6 +574,7 @@ static int blkif_queue_discard_req(struct request *req, struct blkfront_ring_inf
 
 	/* Copy the request to the ring page. */
 	*final_ring_req = *ring_req;
+	rinfo->shadow[id].status = REQ_WAITING;
 
 	return 0;
 }
@@ -847,8 +850,11 @@ static int blkif_queue_rw_req(struct request *req, struct blkfront_ring_info *ri
 
 	/* Copy request(s) to the ring page. */
 	*final_ring_req = *ring_req;
-	if (unlikely(require_extra_req))
+	rinfo->shadow[id].status = REQ_WAITING;
+	if (unlikely(require_extra_req)) {
 		*final_extra_ring_req = *extra_ring_req;
+		rinfo->shadow[extra_id].status = REQ_WAITING;
+	}
 
 	if (new_persistent_gnts)
 		gnttab_free_grant_references(setup.gref_head);
@@ -1420,8 +1426,8 @@ static enum blk_req_status blkif_rsp_to_req_status(int rsp)
 static int blkif_get_final_status(enum blk_req_status s1,
 				  enum blk_req_status s2)
 {
-	BUG_ON(s1 == REQ_WAITING);
-	BUG_ON(s2 == REQ_WAITING);
+	BUG_ON(s1 < REQ_DONE);
+	BUG_ON(s2 < REQ_DONE);
 
 	if (s1 == REQ_ERROR || s2 == REQ_ERROR)
 		return BLKIF_RSP_ERROR;
@@ -1454,7 +1460,7 @@ static bool blkif_completion(unsigned long *id,
 		s->status = blkif_rsp_to_req_status(bret->status);
 
 		/* Wait the second response if not yet here. */
-		if (s2->status == REQ_WAITING)
+		if (s2->status < REQ_DONE)
 			return false;
 
 		bret->status = blkif_get_final_status(s->status,
@@ -1573,11 +1579,17 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 
 	spin_lock_irqsave(&rinfo->ring_lock, flags);
  again:
-	rp = rinfo->ring.sring->rsp_prod;
-	rmb(); /* Ensure we see queued responses up to 'rp'. */
+	rp = READ_ONCE(rinfo->ring.sring->rsp_prod);
+	virt_rmb(); /* Ensure we see queued responses up to 'rp'. */
+	if (RING_RESPONSE_PROD_OVERFLOW(&rinfo->ring, rp)) {
+		pr_alert("%s: illegal number of responses %u\n",
+			 info->gd->disk_name, rp - rinfo->ring.rsp_cons);
+		goto err;
+	}
 
 	for (i = rinfo->ring.rsp_cons; i != rp; i++) {
 		unsigned long id;
+		unsigned int op;
 
 		RING_COPY_RESPONSE(&rinfo->ring, i, &bret);
 		id = bret.id;
@@ -1588,14 +1600,28 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		 * look in get_id_from_freelist.
 		 */
 		if (id >= BLK_RING_SIZE(info)) {
-			WARN(1, "%s: response to %s has incorrect id (%ld)\n",
-			     info->gd->disk_name, op_name(bret.operation), id);
-			/* We can't safely get the 'struct request' as
-			 * the id is busted. */
-			continue;
+			pr_alert("%s: response has incorrect id (%ld)\n",
+				 info->gd->disk_name, id);
+			goto err;
+		}
+		if (rinfo->shadow[id].status != REQ_WAITING) {
+			pr_alert("%s: response references no pending request\n",
+				 info->gd->disk_name);
+			goto err;
 		}
+
+		rinfo->shadow[id].status = REQ_PROCESSING;
 		req  = rinfo->shadow[id].request;
 
+		op = rinfo->shadow[id].req.operation;
+		if (op == BLKIF_OP_INDIRECT)
+			op = rinfo->shadow[id].req.u.indirect.indirect_op;
+		if (bret.operation != op) {
+			pr_alert("%s: response has wrong operation (%u instead of %u)\n",
+				 info->gd->disk_name, bret.operation, op);
+			goto err;
+		}
+
 		if (bret.operation != BLKIF_OP_DISCARD) {
 			/*
 			 * We may need to wait for an extra response if the
@@ -1620,7 +1646,8 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		case BLKIF_OP_DISCARD:
 			if (unlikely(bret.status == BLKIF_RSP_EOPNOTSUPP)) {
 				struct request_queue *rq = info->rq;
-				printk(KERN_WARNING "blkfront: %s: %s op failed\n",
+
+				pr_warn_ratelimited("blkfront: %s: %s op failed\n",
 					   info->gd->disk_name, op_name(bret.operation));
 				blkif_req(req)->error = BLK_STS_NOTSUPP;
 				info->feature_discard = 0;
@@ -1632,13 +1659,13 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		case BLKIF_OP_FLUSH_DISKCACHE:
 		case BLKIF_OP_WRITE_BARRIER:
 			if (unlikely(bret.status == BLKIF_RSP_EOPNOTSUPP)) {
-				printk(KERN_WARNING "blkfront: %s: %s op failed\n",
+				pr_warn_ratelimited("blkfront: %s: %s op failed\n",
 				       info->gd->disk_name, op_name(bret.operation));
 				blkif_req(req)->error = BLK_STS_NOTSUPP;
 			}
 			if (unlikely(bret.status == BLKIF_RSP_ERROR &&
 				     rinfo->shadow[id].req.u.rw.nr_segments == 0)) {
-				printk(KERN_WARNING "blkfront: %s: empty %s op failed\n",
+				pr_warn_ratelimited("blkfront: %s: empty %s op failed\n",
 				       info->gd->disk_name, op_name(bret.operation));
 				blkif_req(req)->error = BLK_STS_NOTSUPP;
 			}
@@ -1653,8 +1680,9 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		case BLKIF_OP_READ:
 		case BLKIF_OP_WRITE:
 			if (unlikely(bret.status != BLKIF_RSP_OKAY))
-				dev_dbg(&info->xbdev->dev, "Bad return from blkdev data "
-					"request: %x\n", bret.status);
+				dev_dbg_ratelimited(&info->xbdev->dev,
+					"Bad return from blkdev data request: %#x\n",
+					bret.status);
 
 			break;
 		default:
@@ -1680,6 +1708,14 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 	spin_unlock_irqrestore(&rinfo->ring_lock, flags);
 
 	return IRQ_HANDLED;
+
+ err:
+	info->connected = BLKIF_STATE_ERROR;
+
+	spin_unlock_irqrestore(&rinfo->ring_lock, flags);
+
+	pr_alert("%s disabled for further use\n", info->gd->disk_name);
+	return IRQ_HANDLED;
 }
 
 
-- 
GitLab


From f5e493709800243181e268ddbfae949d2cc37f0b Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 24 Aug 2021 12:28:06 +0200
Subject: [PATCH 1845/4878] xen/netfront: read response from backend only once

commit 8446066bf8c1f9f7b7412c43fbea0fb87464d75b upstream.

In order to avoid problems in case the backend is modifying a response
on the ring page while the frontend has already seen it, just read the
response into a local buffer in one go and then operate on that buffer
only.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index dd79534910b05..730098a133ced 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -399,13 +399,13 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 		rmb(); /* Ensure we see responses up to 'rp'. */
 
 		for (cons = queue->tx.rsp_cons; cons != prod; cons++) {
-			struct xen_netif_tx_response *txrsp;
+			struct xen_netif_tx_response txrsp;
 
-			txrsp = RING_GET_RESPONSE(&queue->tx, cons);
-			if (txrsp->status == XEN_NETIF_RSP_NULL)
+			RING_COPY_RESPONSE(&queue->tx, cons, &txrsp);
+			if (txrsp.status == XEN_NETIF_RSP_NULL)
 				continue;
 
-			id  = txrsp->id;
+			id  = txrsp.id;
 			skb = queue->tx_skbs[id].skb;
 			if (unlikely(gnttab_query_foreign_access(
 				queue->grant_tx_ref[id]) != 0)) {
@@ -816,7 +816,7 @@ static int xennet_get_extras(struct netfront_queue *queue,
 			     RING_IDX rp)
 
 {
-	struct xen_netif_extra_info *extra;
+	struct xen_netif_extra_info extra;
 	struct device *dev = &queue->info->netdev->dev;
 	RING_IDX cons = queue->rx.rsp_cons;
 	int err = 0;
@@ -832,24 +832,22 @@ static int xennet_get_extras(struct netfront_queue *queue,
 			break;
 		}
 
-		extra = (struct xen_netif_extra_info *)
-			RING_GET_RESPONSE(&queue->rx, ++cons);
+		RING_COPY_RESPONSE(&queue->rx, ++cons, &extra);
 
-		if (unlikely(!extra->type ||
-			     extra->type >= XEN_NETIF_EXTRA_TYPE_MAX)) {
+		if (unlikely(!extra.type ||
+			     extra.type >= XEN_NETIF_EXTRA_TYPE_MAX)) {
 			if (net_ratelimit())
 				dev_warn(dev, "Invalid extra type: %d\n",
-					extra->type);
+					 extra.type);
 			err = -EINVAL;
 		} else {
-			memcpy(&extras[extra->type - 1], extra,
-			       sizeof(*extra));
+			extras[extra.type - 1] = extra;
 		}
 
 		skb = xennet_get_rx_skb(queue, cons);
 		ref = xennet_get_rx_ref(queue, cons);
 		xennet_move_rx_slot(queue, skb, ref);
-	} while (extra->flags & XEN_NETIF_EXTRA_FLAG_MORE);
+	} while (extra.flags & XEN_NETIF_EXTRA_FLAG_MORE);
 
 	queue->rx.rsp_cons = cons;
 	return err;
@@ -907,7 +905,7 @@ static int xennet_get_responses(struct netfront_queue *queue,
 				struct sk_buff_head *list,
 				bool *need_xdp_flush)
 {
-	struct xen_netif_rx_response *rx = &rinfo->rx;
+	struct xen_netif_rx_response *rx = &rinfo->rx, rx_local;
 	int max = XEN_NETIF_NR_SLOTS_MIN + (rx->status <= RX_COPY_THRESHOLD);
 	RING_IDX cons = queue->rx.rsp_cons;
 	struct sk_buff *skb = xennet_get_rx_skb(queue, cons);
@@ -991,7 +989,8 @@ next:
 			break;
 		}
 
-		rx = RING_GET_RESPONSE(&queue->rx, cons + slots);
+		RING_COPY_RESPONSE(&queue->rx, cons + slots, &rx_local);
+		rx = &rx_local;
 		skb = xennet_get_rx_skb(queue, cons + slots);
 		ref = xennet_get_rx_ref(queue, cons + slots);
 		slots++;
@@ -1046,10 +1045,11 @@ static int xennet_fill_frags(struct netfront_queue *queue,
 	struct sk_buff *nskb;
 
 	while ((nskb = __skb_dequeue(list))) {
-		struct xen_netif_rx_response *rx =
-			RING_GET_RESPONSE(&queue->rx, ++cons);
+		struct xen_netif_rx_response rx;
 		skb_frag_t *nfrag = &skb_shinfo(nskb)->frags[0];
 
+		RING_COPY_RESPONSE(&queue->rx, ++cons, &rx);
+
 		if (skb_shinfo(skb)->nr_frags == MAX_SKB_FRAGS) {
 			unsigned int pull_to = NETFRONT_SKB_CB(skb)->pull_to;
 
@@ -1064,7 +1064,7 @@ static int xennet_fill_frags(struct netfront_queue *queue,
 
 		skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags,
 				skb_frag_page(nfrag),
-				rx->offset, rx->status, PAGE_SIZE);
+				rx.offset, rx.status, PAGE_SIZE);
 
 		skb_shinfo(nskb)->nr_frags = 0;
 		kfree_skb(nskb);
@@ -1163,7 +1163,7 @@ static int xennet_poll(struct napi_struct *napi, int budget)
 	i = queue->rx.rsp_cons;
 	work_done = 0;
 	while ((i != rp) && (work_done < budget)) {
-		memcpy(rx, RING_GET_RESPONSE(&queue->rx, i), sizeof(*rx));
+		RING_COPY_RESPONSE(&queue->rx, i, rx);
 		memset(extras, 0, sizeof(rinfo.extras));
 
 		err = xennet_get_responses(queue, &rinfo, rp, &tmpq,
-- 
GitLab


From e17ee047eea7122c1d4196ed39032e517dad4152 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 24 Aug 2021 12:28:07 +0200
Subject: [PATCH 1846/4878] xen/netfront: don't read data from request on the
 ring page

commit 162081ec33c2686afa29d91bf8d302824aa846c7 upstream.

In order to avoid a malicious backend being able to influence the local
processing of a request build the request locally first and then copy
it to the ring page. Any reading from the request influencing the
processing in the frontend needs to be done on the local instance.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 86 +++++++++++++++++++-------------------
 1 file changed, 42 insertions(+), 44 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 730098a133ced..7146b35d7b8ac 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -435,7 +435,8 @@ struct xennet_gnttab_make_txreq {
 	struct netfront_queue *queue;
 	struct sk_buff *skb;
 	struct page *page;
-	struct xen_netif_tx_request *tx; /* Last request */
+	struct xen_netif_tx_request *tx;      /* Last request on ring page */
+	struct xen_netif_tx_request tx_local; /* Last request local copy*/
 	unsigned int size;
 };
 
@@ -463,30 +464,27 @@ static void xennet_tx_setup_grant(unsigned long gfn, unsigned int offset,
 	queue->grant_tx_page[id] = page;
 	queue->grant_tx_ref[id] = ref;
 
-	tx->id = id;
-	tx->gref = ref;
-	tx->offset = offset;
-	tx->size = len;
-	tx->flags = 0;
+	info->tx_local.id = id;
+	info->tx_local.gref = ref;
+	info->tx_local.offset = offset;
+	info->tx_local.size = len;
+	info->tx_local.flags = 0;
+
+	*tx = info->tx_local;
 
 	info->tx = tx;
-	info->size += tx->size;
+	info->size += info->tx_local.size;
 }
 
 static struct xen_netif_tx_request *xennet_make_first_txreq(
-	struct netfront_queue *queue, struct sk_buff *skb,
-	struct page *page, unsigned int offset, unsigned int len)
+	struct xennet_gnttab_make_txreq *info,
+	unsigned int offset, unsigned int len)
 {
-	struct xennet_gnttab_make_txreq info = {
-		.queue = queue,
-		.skb = skb,
-		.page = page,
-		.size = 0,
-	};
+	info->size = 0;
 
-	gnttab_for_one_grant(page, offset, len, xennet_tx_setup_grant, &info);
+	gnttab_for_one_grant(info->page, offset, len, xennet_tx_setup_grant, info);
 
-	return info.tx;
+	return info->tx;
 }
 
 static void xennet_make_one_txreq(unsigned long gfn, unsigned int offset,
@@ -499,35 +497,27 @@ static void xennet_make_one_txreq(unsigned long gfn, unsigned int offset,
 	xennet_tx_setup_grant(gfn, offset, len, data);
 }
 
-static struct xen_netif_tx_request *xennet_make_txreqs(
-	struct netfront_queue *queue, struct xen_netif_tx_request *tx,
-	struct sk_buff *skb, struct page *page,
+static void xennet_make_txreqs(
+	struct xennet_gnttab_make_txreq *info,
+	struct page *page,
 	unsigned int offset, unsigned int len)
 {
-	struct xennet_gnttab_make_txreq info = {
-		.queue = queue,
-		.skb = skb,
-		.tx = tx,
-	};
-
 	/* Skip unused frames from start of page */
 	page += offset >> PAGE_SHIFT;
 	offset &= ~PAGE_MASK;
 
 	while (len) {
-		info.page = page;
-		info.size = 0;
+		info->page = page;
+		info->size = 0;
 
 		gnttab_foreach_grant_in_range(page, offset, len,
 					      xennet_make_one_txreq,
-					      &info);
+					      info);
 
 		page++;
 		offset = 0;
-		len -= info.size;
+		len -= info->size;
 	}
-
-	return info.tx;
 }
 
 /*
@@ -580,10 +570,14 @@ static int xennet_xdp_xmit_one(struct net_device *dev,
 {
 	struct netfront_info *np = netdev_priv(dev);
 	struct netfront_stats *tx_stats = this_cpu_ptr(np->tx_stats);
+	struct xennet_gnttab_make_txreq info = {
+		.queue = queue,
+		.skb = NULL,
+		.page = virt_to_page(xdpf->data),
+	};
 	int notify;
 
-	xennet_make_first_txreq(queue, NULL,
-				virt_to_page(xdpf->data),
+	xennet_make_first_txreq(&info,
 				offset_in_page(xdpf->data),
 				xdpf->len);
 
@@ -640,7 +634,7 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 {
 	struct netfront_info *np = netdev_priv(dev);
 	struct netfront_stats *tx_stats = this_cpu_ptr(np->tx_stats);
-	struct xen_netif_tx_request *tx, *first_tx;
+	struct xen_netif_tx_request *first_tx;
 	unsigned int i;
 	int notify;
 	int slots;
@@ -649,6 +643,7 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 	unsigned int len;
 	unsigned long flags;
 	struct netfront_queue *queue = NULL;
+	struct xennet_gnttab_make_txreq info = { };
 	unsigned int num_queues = dev->real_num_tx_queues;
 	u16 queue_index;
 	struct sk_buff *nskb;
@@ -706,21 +701,24 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 	}
 
 	/* First request for the linear area. */
-	first_tx = tx = xennet_make_first_txreq(queue, skb,
-						page, offset, len);
-	offset += tx->size;
+	info.queue = queue;
+	info.skb = skb;
+	info.page = page;
+	first_tx = xennet_make_first_txreq(&info, offset, len);
+	offset += info.tx_local.size;
 	if (offset == PAGE_SIZE) {
 		page++;
 		offset = 0;
 	}
-	len -= tx->size;
+	len -= info.tx_local.size;
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
 		/* local packet? */
-		tx->flags |= XEN_NETTXF_csum_blank | XEN_NETTXF_data_validated;
+		first_tx->flags |= XEN_NETTXF_csum_blank |
+				   XEN_NETTXF_data_validated;
 	else if (skb->ip_summed == CHECKSUM_UNNECESSARY)
 		/* remote but checksummed. */
-		tx->flags |= XEN_NETTXF_data_validated;
+		first_tx->flags |= XEN_NETTXF_data_validated;
 
 	/* Optional extra info after the first request. */
 	if (skb_shinfo(skb)->gso_size) {
@@ -729,7 +727,7 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 		gso = (struct xen_netif_extra_info *)
 			RING_GET_REQUEST(&queue->tx, queue->tx.req_prod_pvt++);
 
-		tx->flags |= XEN_NETTXF_extra_info;
+		first_tx->flags |= XEN_NETTXF_extra_info;
 
 		gso->u.gso.size = skb_shinfo(skb)->gso_size;
 		gso->u.gso.type = (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) ?
@@ -743,12 +741,12 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 	}
 
 	/* Requests for the rest of the linear area. */
-	tx = xennet_make_txreqs(queue, tx, skb, page, offset, len);
+	xennet_make_txreqs(&info, page, offset, len);
 
 	/* Requests for all the frags. */
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
-		tx = xennet_make_txreqs(queue, tx, skb, skb_frag_page(frag),
+		xennet_make_txreqs(&info, skb_frag_page(frag),
 					skb_frag_off(frag),
 					skb_frag_size(frag));
 	}
-- 
GitLab


From 334b0f278761a65718324137e87efe722d536700 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 24 Aug 2021 12:28:08 +0200
Subject: [PATCH 1847/4878] xen/netfront: disentangle tx_skb_freelist

commit 21631d2d741a64a073e167c27769e73bc7844a2f upstream.

The tx_skb_freelist elements are in a single linked list with the
request id used as link reference. The per element link field is in a
union with the skb pointer of an in use request.

Move the link reference out of the union in order to enable a later
reuse of it for requests which need a populated skb pointer.

Rename add_id_to_freelist() and get_id_from_freelist() to
add_id_to_list() and get_id_from_list() in order to prepare using
those for other lists as well. Define ~0 as value to indicate the end
of a list and place that value into the link for a request not being
on the list.

When freeing a skb zero the skb pointer in the request. Use a NULL
value of the skb pointer instead of skb_entry_is_link() for deciding
whether a request has a skb linked to it.

Remove skb_entry_set_link() and open code it instead as it is really
trivial now.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 61 ++++++++++++++++----------------------
 1 file changed, 25 insertions(+), 36 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 7146b35d7b8ac..8d531162454d7 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -126,17 +126,11 @@ struct netfront_queue {
 
 	/*
 	 * {tx,rx}_skbs store outstanding skbuffs. Free tx_skb entries
-	 * are linked from tx_skb_freelist through skb_entry.link.
-	 *
-	 *  NB. Freelist index entries are always going to be less than
-	 *  PAGE_OFFSET, whereas pointers to skbs will always be equal or
-	 *  greater than PAGE_OFFSET: we use this property to distinguish
-	 *  them.
+	 * are linked from tx_skb_freelist through tx_link.
 	 */
-	union skb_entry {
-		struct sk_buff *skb;
-		unsigned long link;
-	} tx_skbs[NET_TX_RING_SIZE];
+	struct sk_buff *tx_skbs[NET_TX_RING_SIZE];
+	unsigned short tx_link[NET_TX_RING_SIZE];
+#define TX_LINK_NONE 0xffff
 	grant_ref_t gref_tx_head;
 	grant_ref_t grant_tx_ref[NET_TX_RING_SIZE];
 	struct page *grant_tx_page[NET_TX_RING_SIZE];
@@ -181,33 +175,25 @@ struct netfront_rx_info {
 	struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX - 1];
 };
 
-static void skb_entry_set_link(union skb_entry *list, unsigned short id)
-{
-	list->link = id;
-}
-
-static int skb_entry_is_link(const union skb_entry *list)
-{
-	BUILD_BUG_ON(sizeof(list->skb) != sizeof(list->link));
-	return (unsigned long)list->skb < PAGE_OFFSET;
-}
-
 /*
  * Access macros for acquiring freeing slots in tx_skbs[].
  */
 
-static void add_id_to_freelist(unsigned *head, union skb_entry *list,
-			       unsigned short id)
+static void add_id_to_list(unsigned *head, unsigned short *list,
+			   unsigned short id)
 {
-	skb_entry_set_link(&list[id], *head);
+	list[id] = *head;
 	*head = id;
 }
 
-static unsigned short get_id_from_freelist(unsigned *head,
-					   union skb_entry *list)
+static unsigned short get_id_from_list(unsigned *head, unsigned short *list)
 {
 	unsigned int id = *head;
-	*head = list[id].link;
+
+	if (id != TX_LINK_NONE) {
+		*head = list[id];
+		list[id] = TX_LINK_NONE;
+	}
 	return id;
 }
 
@@ -406,7 +392,8 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 				continue;
 
 			id  = txrsp.id;
-			skb = queue->tx_skbs[id].skb;
+			skb = queue->tx_skbs[id];
+			queue->tx_skbs[id] = NULL;
 			if (unlikely(gnttab_query_foreign_access(
 				queue->grant_tx_ref[id]) != 0)) {
 				pr_alert("%s: warning -- grant still in use by backend domain\n",
@@ -419,7 +406,7 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 				&queue->gref_tx_head, queue->grant_tx_ref[id]);
 			queue->grant_tx_ref[id] = GRANT_INVALID_REF;
 			queue->grant_tx_page[id] = NULL;
-			add_id_to_freelist(&queue->tx_skb_freelist, queue->tx_skbs, id);
+			add_id_to_list(&queue->tx_skb_freelist, queue->tx_link, id);
 			dev_kfree_skb_irq(skb);
 		}
 
@@ -452,7 +439,7 @@ static void xennet_tx_setup_grant(unsigned long gfn, unsigned int offset,
 	struct netfront_queue *queue = info->queue;
 	struct sk_buff *skb = info->skb;
 
-	id = get_id_from_freelist(&queue->tx_skb_freelist, queue->tx_skbs);
+	id = get_id_from_list(&queue->tx_skb_freelist, queue->tx_link);
 	tx = RING_GET_REQUEST(&queue->tx, queue->tx.req_prod_pvt++);
 	ref = gnttab_claim_grant_reference(&queue->gref_tx_head);
 	WARN_ON_ONCE(IS_ERR_VALUE((unsigned long)(int)ref));
@@ -460,7 +447,7 @@ static void xennet_tx_setup_grant(unsigned long gfn, unsigned int offset,
 	gnttab_grant_foreign_access_ref(ref, queue->info->xbdev->otherend_id,
 					gfn, GNTMAP_readonly);
 
-	queue->tx_skbs[id].skb = skb;
+	queue->tx_skbs[id] = skb;
 	queue->grant_tx_page[id] = page;
 	queue->grant_tx_ref[id] = ref;
 
@@ -1286,17 +1273,18 @@ static void xennet_release_tx_bufs(struct netfront_queue *queue)
 
 	for (i = 0; i < NET_TX_RING_SIZE; i++) {
 		/* Skip over entries which are actually freelist references */
-		if (skb_entry_is_link(&queue->tx_skbs[i]))
+		if (!queue->tx_skbs[i])
 			continue;
 
-		skb = queue->tx_skbs[i].skb;
+		skb = queue->tx_skbs[i];
+		queue->tx_skbs[i] = NULL;
 		get_page(queue->grant_tx_page[i]);
 		gnttab_end_foreign_access(queue->grant_tx_ref[i],
 					  GNTMAP_readonly,
 					  (unsigned long)page_address(queue->grant_tx_page[i]));
 		queue->grant_tx_page[i] = NULL;
 		queue->grant_tx_ref[i] = GRANT_INVALID_REF;
-		add_id_to_freelist(&queue->tx_skb_freelist, queue->tx_skbs, i);
+		add_id_to_list(&queue->tx_skb_freelist, queue->tx_link, i);
 		dev_kfree_skb_irq(skb);
 	}
 }
@@ -1857,13 +1845,14 @@ static int xennet_init_queue(struct netfront_queue *queue)
 	snprintf(queue->name, sizeof(queue->name), "vif%s-q%u",
 		 devid, queue->id);
 
-	/* Initialise tx_skbs as a free chain containing every entry. */
+	/* Initialise tx_skb_freelist as a free chain containing every entry. */
 	queue->tx_skb_freelist = 0;
 	for (i = 0; i < NET_TX_RING_SIZE; i++) {
-		skb_entry_set_link(&queue->tx_skbs[i], i+1);
+		queue->tx_link[i] = i + 1;
 		queue->grant_tx_ref[i] = GRANT_INVALID_REF;
 		queue->grant_tx_page[i] = NULL;
 	}
+	queue->tx_link[NET_TX_RING_SIZE - 1] = TX_LINK_NONE;
 
 	/* Clear out rx_skbs */
 	for (i = 0; i < NET_RX_RING_SIZE; i++) {
-- 
GitLab


From 1c5f722a8fdf19d383112fb701525e1b6870d8ca Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 24 Aug 2021 12:28:09 +0200
Subject: [PATCH 1848/4878] xen/netfront: don't trust the backend response data
 blindly

commit a884daa61a7d91650987e855464526aef219590f upstream.

Today netfront will trust the backend to send only sane response data.
In order to avoid privilege escalations or crashes in case of malicious
backends verify the data to be within expected limits. Especially make
sure that the response always references an outstanding request.

Note that only the tx queue needs special id handling, as for the rx
queue the id is equal to the index in the ring page.

Introduce a new indicator for the device whether it is broken and let
the device stop working when it is set. Set this indicator in case the
backend sets any weird data.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 89 +++++++++++++++++++++++++++++++++++---
 1 file changed, 84 insertions(+), 5 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 8d531162454d7..8505024b89e9e 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -131,10 +131,12 @@ struct netfront_queue {
 	struct sk_buff *tx_skbs[NET_TX_RING_SIZE];
 	unsigned short tx_link[NET_TX_RING_SIZE];
 #define TX_LINK_NONE 0xffff
+#define TX_PENDING   0xfffe
 	grant_ref_t gref_tx_head;
 	grant_ref_t grant_tx_ref[NET_TX_RING_SIZE];
 	struct page *grant_tx_page[NET_TX_RING_SIZE];
 	unsigned tx_skb_freelist;
+	unsigned int tx_pend_queue;
 
 	spinlock_t   rx_lock ____cacheline_aligned_in_smp;
 	struct xen_netif_rx_front_ring rx;
@@ -167,6 +169,9 @@ struct netfront_info {
 	bool netback_has_xdp_headroom;
 	bool netfront_xdp_enabled;
 
+	/* Is device behaving sane? */
+	bool broken;
+
 	atomic_t rx_gso_checksum_fixup;
 };
 
@@ -349,7 +354,7 @@ static int xennet_open(struct net_device *dev)
 	unsigned int i = 0;
 	struct netfront_queue *queue = NULL;
 
-	if (!np->queues)
+	if (!np->queues || np->broken)
 		return -ENODEV;
 
 	for (i = 0; i < num_queues; ++i) {
@@ -377,11 +382,17 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 	unsigned short id;
 	struct sk_buff *skb;
 	bool more_to_do;
+	const struct device *dev = &queue->info->netdev->dev;
 
 	BUG_ON(!netif_carrier_ok(queue->info->netdev));
 
 	do {
 		prod = queue->tx.sring->rsp_prod;
+		if (RING_RESPONSE_PROD_OVERFLOW(&queue->tx, prod)) {
+			dev_alert(dev, "Illegal number of responses %u\n",
+				  prod - queue->tx.rsp_cons);
+			goto err;
+		}
 		rmb(); /* Ensure we see responses up to 'rp'. */
 
 		for (cons = queue->tx.rsp_cons; cons != prod; cons++) {
@@ -391,14 +402,27 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 			if (txrsp.status == XEN_NETIF_RSP_NULL)
 				continue;
 
-			id  = txrsp.id;
+			id = txrsp.id;
+			if (id >= RING_SIZE(&queue->tx)) {
+				dev_alert(dev,
+					  "Response has incorrect id (%u)\n",
+					  id);
+				goto err;
+			}
+			if (queue->tx_link[id] != TX_PENDING) {
+				dev_alert(dev,
+					  "Response for inactive request\n");
+				goto err;
+			}
+
+			queue->tx_link[id] = TX_LINK_NONE;
 			skb = queue->tx_skbs[id];
 			queue->tx_skbs[id] = NULL;
 			if (unlikely(gnttab_query_foreign_access(
 				queue->grant_tx_ref[id]) != 0)) {
-				pr_alert("%s: warning -- grant still in use by backend domain\n",
-					 __func__);
-				BUG();
+				dev_alert(dev,
+					  "Grant still in use by backend domain\n");
+				goto err;
 			}
 			gnttab_end_foreign_access_ref(
 				queue->grant_tx_ref[id], GNTMAP_readonly);
@@ -416,6 +440,12 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 	} while (more_to_do);
 
 	xennet_maybe_wake_tx(queue);
+
+	return;
+
+ err:
+	queue->info->broken = true;
+	dev_alert(dev, "Disabled for further use\n");
 }
 
 struct xennet_gnttab_make_txreq {
@@ -459,6 +489,12 @@ static void xennet_tx_setup_grant(unsigned long gfn, unsigned int offset,
 
 	*tx = info->tx_local;
 
+	/*
+	 * Put the request in the pending queue, it will be set to be pending
+	 * when the producer index is about to be raised.
+	 */
+	add_id_to_list(&queue->tx_pend_queue, queue->tx_link, id);
+
 	info->tx = tx;
 	info->size += info->tx_local.size;
 }
@@ -551,6 +587,15 @@ static u16 xennet_select_queue(struct net_device *dev, struct sk_buff *skb,
 	return queue_idx;
 }
 
+static void xennet_mark_tx_pending(struct netfront_queue *queue)
+{
+	unsigned int i;
+
+	while ((i = get_id_from_list(&queue->tx_pend_queue, queue->tx_link)) !=
+	       TX_LINK_NONE)
+		queue->tx_link[i] = TX_PENDING;
+}
+
 static int xennet_xdp_xmit_one(struct net_device *dev,
 			       struct netfront_queue *queue,
 			       struct xdp_frame *xdpf)
@@ -568,6 +613,8 @@ static int xennet_xdp_xmit_one(struct net_device *dev,
 				offset_in_page(xdpf->data),
 				xdpf->len);
 
+	xennet_mark_tx_pending(queue);
+
 	RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&queue->tx, notify);
 	if (notify)
 		notify_remote_via_irq(queue->tx_irq);
@@ -592,6 +639,8 @@ static int xennet_xdp_xmit(struct net_device *dev, int n,
 	int drops = 0;
 	int i, err;
 
+	if (unlikely(np->broken))
+		return -ENODEV;
 	if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK))
 		return -EINVAL;
 
@@ -638,6 +687,8 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 	/* Drop the packet if no queues are set up */
 	if (num_queues < 1)
 		goto drop;
+	if (unlikely(np->broken))
+		goto drop;
 	/* Determine which queue to transmit this SKB on */
 	queue_index = skb_get_queue_mapping(skb);
 	queue = &np->queues[queue_index];
@@ -744,6 +795,8 @@ static netdev_tx_t xennet_start_xmit(struct sk_buff *skb, struct net_device *dev
 	/* timestamp packet in software */
 	skb_tx_timestamp(skb);
 
+	xennet_mark_tx_pending(queue);
+
 	RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&queue->tx, notify);
 	if (notify)
 		notify_remote_via_irq(queue->tx_irq);
@@ -1143,6 +1196,13 @@ static int xennet_poll(struct napi_struct *napi, int budget)
 	skb_queue_head_init(&tmpq);
 
 	rp = queue->rx.sring->rsp_prod;
+	if (RING_RESPONSE_PROD_OVERFLOW(&queue->rx, rp)) {
+		dev_alert(&dev->dev, "Illegal number of responses %u\n",
+			  rp - queue->rx.rsp_cons);
+		queue->info->broken = true;
+		spin_unlock(&queue->rx_lock);
+		return 0;
+	}
 	rmb(); /* Ensure we see queued responses up to 'rp'. */
 
 	i = queue->rx.rsp_cons;
@@ -1364,6 +1424,9 @@ static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id)
 	struct netfront_queue *queue = dev_id;
 	unsigned long flags;
 
+	if (queue->info->broken)
+		return IRQ_HANDLED;
+
 	spin_lock_irqsave(&queue->tx_lock, flags);
 	xennet_tx_buf_gc(queue);
 	spin_unlock_irqrestore(&queue->tx_lock, flags);
@@ -1376,6 +1439,9 @@ static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id)
 	struct netfront_queue *queue = dev_id;
 	struct net_device *dev = queue->info->netdev;
 
+	if (queue->info->broken)
+		return IRQ_HANDLED;
+
 	if (likely(netif_carrier_ok(dev) &&
 		   RING_HAS_UNCONSUMED_RESPONSES(&queue->rx)))
 		napi_schedule(&queue->napi);
@@ -1397,6 +1463,10 @@ static void xennet_poll_controller(struct net_device *dev)
 	struct netfront_info *info = netdev_priv(dev);
 	unsigned int num_queues = dev->real_num_tx_queues;
 	unsigned int i;
+
+	if (info->broken)
+		return;
+
 	for (i = 0; i < num_queues; ++i)
 		xennet_interrupt(0, &info->queues[i]);
 }
@@ -1468,6 +1538,11 @@ static int xennet_xdp_set(struct net_device *dev, struct bpf_prog *prog,
 
 static int xennet_xdp(struct net_device *dev, struct netdev_bpf *xdp)
 {
+	struct netfront_info *np = netdev_priv(dev);
+
+	if (np->broken)
+		return -ENODEV;
+
 	switch (xdp->command) {
 	case XDP_SETUP_PROG:
 		return xennet_xdp_set(dev, xdp->prog, xdp->extack);
@@ -1847,6 +1922,7 @@ static int xennet_init_queue(struct netfront_queue *queue)
 
 	/* Initialise tx_skb_freelist as a free chain containing every entry. */
 	queue->tx_skb_freelist = 0;
+	queue->tx_pend_queue = TX_LINK_NONE;
 	for (i = 0; i < NET_TX_RING_SIZE; i++) {
 		queue->tx_link[i] = i + 1;
 		queue->grant_tx_ref[i] = GRANT_INVALID_REF;
@@ -2121,6 +2197,9 @@ static int talk_to_netback(struct xenbus_device *dev,
 	if (info->queues)
 		xennet_destroy_queues(info);
 
+	/* For the case of a reconnect reset the "broken" indicator. */
+	info->broken = false;
+
 	err = xennet_create_queues(info, &num_queues);
 	if (err < 0) {
 		xenbus_dev_fatal(dev, err, "creating queues");
-- 
GitLab


From a94e4a7b77edb1ae20f41c7c53677a9c6cee1fd8 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Wed, 7 Jul 2021 11:10:45 +0200
Subject: [PATCH 1849/4878] tty: hvc: replace BUG_ON() with negative return
 value

commit e679004dec37566f658a255157d3aed9d762a2b7 upstream.

Xen frontends shouldn't BUG() in case of illegal data received from
their backends. So replace the BUG_ON()s when reading illegal data from
the ring page with negative return values.

Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20210707091045.460-1-jgross@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/hvc/hvc_xen.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 92c9a476defc9..8f143c09a1696 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -86,7 +86,11 @@ static int __write_console(struct xencons_info *xencons,
 	cons = intf->out_cons;
 	prod = intf->out_prod;
 	mb();			/* update queue values before going on */
-	BUG_ON((prod - cons) > sizeof(intf->out));
+
+	if ((prod - cons) > sizeof(intf->out)) {
+		pr_err_once("xencons: Illegal ring page indices");
+		return -EINVAL;
+	}
 
 	while ((sent < len) && ((prod - cons) < sizeof(intf->out)))
 		intf->out[MASK_XENCONS_IDX(prod++, intf->out)] = data[sent++];
@@ -114,7 +118,10 @@ static int domU_write_console(uint32_t vtermno, const char *data, int len)
 	 */
 	while (len) {
 		int sent = __write_console(cons, data, len);
-		
+
+		if (sent < 0)
+			return sent;
+
 		data += sent;
 		len -= sent;
 
@@ -138,7 +145,11 @@ static int domU_read_console(uint32_t vtermno, char *buf, int len)
 	cons = intf->in_cons;
 	prod = intf->in_prod;
 	mb();			/* get pointers before reading ring */
-	BUG_ON((prod - cons) > sizeof(intf->in));
+
+	if ((prod - cons) > sizeof(intf->in)) {
+		pr_err_once("xencons: Illegal ring page indices");
+		return -EINVAL;
+	}
 
 	while (cons != prod && recv < len)
 		buf[recv++] = intf->in[MASK_XENCONS_IDX(cons++, intf->in)];
-- 
GitLab


From aa20e966d8a1249754da934342cc3793f4638e7f Mon Sep 17 00:00:00 2001
From: David Hildenbrand <david@redhat.com>
Date: Thu, 9 Sep 2021 18:22:42 +0200
Subject: [PATCH 1850/4878] s390/mm: validate VMA in PGSTE manipulation
 functions

commit fe3d10024073f06f04c74b9674bd71ccc1d787cf upstream.

We should not walk/touch page tables outside of VMA boundaries when
holding only the mmap sem in read mode. Evil user space can modify the
VMA layout just before this function runs and e.g., trigger races with
page table removal code since commit dd2283f2605e ("mm: mmap: zap pages
with read mmap_sem in munmap"). gfn_to_hva() will only translate using
KVM memory regions, but won't validate the VMA.

Further, we should not allocate page tables outside of VMA boundaries: if
evil user space decides to map hugetlbfs to these ranges, bad things will
happen because we suddenly have PTE or PMD page tables where we
shouldn't have them.

Similarly, we have to check if we suddenly find a hugetlbfs VMA, before
calling get_locked_pte().

Fixes: 2d42f9477320 ("s390/kvm: Add PGSTE manipulation functions")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20210909162248.14969-4-david@redhat.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/mm/pgtable.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 18205f851c247..fabaedddc90cb 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -988,6 +988,7 @@ EXPORT_SYMBOL(get_guest_storage_key);
 int pgste_perform_essa(struct mm_struct *mm, unsigned long hva, int orc,
 			unsigned long *oldpte, unsigned long *oldpgste)
 {
+	struct vm_area_struct *vma;
 	unsigned long pgstev;
 	spinlock_t *ptl;
 	pgste_t pgste;
@@ -997,6 +998,10 @@ int pgste_perform_essa(struct mm_struct *mm, unsigned long hva, int orc,
 	WARN_ON_ONCE(orc > ESSA_MAX);
 	if (unlikely(orc > ESSA_MAX))
 		return -EINVAL;
+
+	vma = find_vma(mm, hva);
+	if (!vma || hva < vma->vm_start || is_vm_hugetlb_page(vma))
+		return -EFAULT;
 	ptep = get_locked_pte(mm, hva, &ptl);
 	if (unlikely(!ptep))
 		return -EFAULT;
@@ -1089,10 +1094,14 @@ EXPORT_SYMBOL(pgste_perform_essa);
 int set_pgste_bits(struct mm_struct *mm, unsigned long hva,
 			unsigned long bits, unsigned long value)
 {
+	struct vm_area_struct *vma;
 	spinlock_t *ptl;
 	pgste_t new;
 	pte_t *ptep;
 
+	vma = find_vma(mm, hva);
+	if (!vma || hva < vma->vm_start || is_vm_hugetlb_page(vma))
+		return -EFAULT;
 	ptep = get_locked_pte(mm, hva, &ptl);
 	if (unlikely(!ptep))
 		return -EFAULT;
@@ -1117,9 +1126,13 @@ EXPORT_SYMBOL(set_pgste_bits);
  */
 int get_pgste(struct mm_struct *mm, unsigned long hva, unsigned long *pgstep)
 {
+	struct vm_area_struct *vma;
 	spinlock_t *ptl;
 	pte_t *ptep;
 
+	vma = find_vma(mm, hva);
+	if (!vma || hva < vma->vm_start || is_vm_hugetlb_page(vma))
+		return -EFAULT;
 	ptep = get_locked_pte(mm, hva, &ptl);
 	if (unlikely(!ptep))
 		return -EFAULT;
-- 
GitLab


From a15261d2a1214c9304d17d4b9b819255c7406de5 Mon Sep 17 00:00:00 2001
From: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>
Date: Fri, 19 Nov 2021 16:43:21 -0800
Subject: [PATCH 1851/4878] shm: extend forced shm destroy to support objects
 from several IPC nses

commit 85b6d24646e4125c591639841169baa98a2da503 upstream.

Currently, the exit_shm() function not designed to work properly when
task->sysvshm.shm_clist holds shm objects from different IPC namespaces.

This is a real pain when sysctl kernel.shm_rmid_forced = 1, because it
leads to use-after-free (reproducer exists).

This is an attempt to fix the problem by extending exit_shm mechanism to
handle shm's destroy from several IPC ns'es.

To achieve that we do several things:

1. add a namespace (non-refcounted) pointer to the struct shmid_kernel

2. during new shm object creation (newseg()/shmget syscall) we
   initialize this pointer by current task IPC ns

3. exit_shm() fully reworked such that it traverses over all shp's in
   task->sysvshm.shm_clist and gets IPC namespace not from current task
   as it was before but from shp's object itself, then call
   shm_destroy(shp, ns).

Note: We need to be really careful here, because as it was said before
(1), our pointer to IPC ns non-refcnt'ed.  To be on the safe side we
using special helper get_ipc_ns_not_zero() which allows to get IPC ns
refcounter only if IPC ns not in the "state of destruction".

Q/A

Q: Why can we access shp->ns memory using non-refcounted pointer?
A: Because shp object lifetime is always shorther than IPC namespace
   lifetime, so, if we get shp object from the task->sysvshm.shm_clist
   while holding task_lock(task) nobody can steal our namespace.

Q: Does this patch change semantics of unshare/setns/clone syscalls?
A: No. It's just fixes non-covered case when process may leave IPC
   namespace without getting task->sysvshm.shm_clist list cleaned up.

Link: https://lkml.kernel.org/r/67bb03e5-f79c-1815-e2bf-949c67047418@colorfullife.com
Link: https://lkml.kernel.org/r/20211109151501.4921-1-manfred@colorfullife.com
Fixes: ab602f79915 ("shm: make exit_shm work proportional to task activity")
Co-developed-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Cc: Vasily Averin <vvs@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/ipc_namespace.h |  15 +++
 include/linux/sched/task.h    |   2 +-
 ipc/shm.c                     | 189 +++++++++++++++++++++++++---------
 3 files changed, 159 insertions(+), 47 deletions(-)

diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index a06a78c67f19f..08325105131a2 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -132,6 +132,16 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
 	return ns;
 }
 
+static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
+{
+	if (ns) {
+		if (refcount_inc_not_zero(&ns->count))
+			return ns;
+	}
+
+	return NULL;
+}
+
 extern void put_ipc_ns(struct ipc_namespace *ns);
 #else
 static inline struct ipc_namespace *copy_ipcs(unsigned long flags,
@@ -148,6 +158,11 @@ static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
 	return ns;
 }
 
+static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
+{
+	return ns;
+}
+
 static inline void put_ipc_ns(struct ipc_namespace *ns)
 {
 }
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 24cacb1ca654d..fa75f325dad53 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -158,7 +158,7 @@ static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t)
  * Protects ->fs, ->files, ->mm, ->group_info, ->comm, keyring
  * subscriptions and synchronises with wait4().  Also used in procfs.  Also
  * pins the final release of task.io_context.  Also protects ->cpuset and
- * ->cgroup.subsys[]. And ->vfork_done.
+ * ->cgroup.subsys[]. And ->vfork_done. And ->sysvshm.shm_clist.
  *
  * Nests both inside and outside of read_lock(&tasklist_lock).
  * It must not be nested with write_lock_irq(&tasklist_lock),
diff --git a/ipc/shm.c b/ipc/shm.c
index e25c7c6106bcf..471ac3e7498d5 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -62,9 +62,18 @@ struct shmid_kernel /* private to the kernel */
 	struct pid		*shm_lprid;
 	struct user_struct	*mlock_user;
 
-	/* The task created the shm object.  NULL if the task is dead. */
+	/*
+	 * The task created the shm object, for
+	 * task_lock(shp->shm_creator)
+	 */
 	struct task_struct	*shm_creator;
-	struct list_head	shm_clist;	/* list by creator */
+
+	/*
+	 * List by creator. task_lock(->shm_creator) required for read/write.
+	 * If list_empty(), then the creator is dead already.
+	 */
+	struct list_head	shm_clist;
+	struct ipc_namespace	*ns;
 } __randomize_layout;
 
 /* shm_mode upper byte flags */
@@ -115,6 +124,7 @@ static void do_shm_rmid(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
 	struct shmid_kernel *shp;
 
 	shp = container_of(ipcp, struct shmid_kernel, shm_perm);
+	WARN_ON(ns != shp->ns);
 
 	if (shp->shm_nattch) {
 		shp->shm_perm.mode |= SHM_DEST;
@@ -225,10 +235,43 @@ static void shm_rcu_free(struct rcu_head *head)
 	kvfree(shp);
 }
 
-static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
+/*
+ * It has to be called with shp locked.
+ * It must be called before ipc_rmid()
+ */
+static inline void shm_clist_rm(struct shmid_kernel *shp)
 {
-	list_del(&s->shm_clist);
-	ipc_rmid(&shm_ids(ns), &s->shm_perm);
+	struct task_struct *creator;
+
+	/* ensure that shm_creator does not disappear */
+	rcu_read_lock();
+
+	/*
+	 * A concurrent exit_shm may do a list_del_init() as well.
+	 * Just do nothing if exit_shm already did the work
+	 */
+	if (!list_empty(&shp->shm_clist)) {
+		/*
+		 * shp->shm_creator is guaranteed to be valid *only*
+		 * if shp->shm_clist is not empty.
+		 */
+		creator = shp->shm_creator;
+
+		task_lock(creator);
+		/*
+		 * list_del_init() is a nop if the entry was already removed
+		 * from the list.
+		 */
+		list_del_init(&shp->shm_clist);
+		task_unlock(creator);
+	}
+	rcu_read_unlock();
+}
+
+static inline void shm_rmid(struct shmid_kernel *s)
+{
+	shm_clist_rm(s);
+	ipc_rmid(&shm_ids(s->ns), &s->shm_perm);
 }
 
 
@@ -283,7 +326,7 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
 	shm_file = shp->shm_file;
 	shp->shm_file = NULL;
 	ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	shm_rmid(ns, shp);
+	shm_rmid(shp);
 	shm_unlock(shp);
 	if (!is_file_hugepages(shm_file))
 		shmem_lock(shm_file, 0, shp->mlock_user);
@@ -306,10 +349,10 @@ static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
  *
  * 2) sysctl kernel.shm_rmid_forced is set to 1.
  */
-static bool shm_may_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
+static bool shm_may_destroy(struct shmid_kernel *shp)
 {
 	return (shp->shm_nattch == 0) &&
-	       (ns->shm_rmid_forced ||
+	       (shp->ns->shm_rmid_forced ||
 		(shp->shm_perm.mode & SHM_DEST));
 }
 
@@ -340,7 +383,7 @@ static void shm_close(struct vm_area_struct *vma)
 	ipc_update_pid(&shp->shm_lprid, task_tgid(current));
 	shp->shm_dtim = ktime_get_real_seconds();
 	shp->shm_nattch--;
-	if (shm_may_destroy(ns, shp))
+	if (shm_may_destroy(shp))
 		shm_destroy(ns, shp);
 	else
 		shm_unlock(shp);
@@ -361,10 +404,10 @@ static int shm_try_destroy_orphaned(int id, void *p, void *data)
 	 *
 	 * As shp->* are changed under rwsem, it's safe to skip shp locking.
 	 */
-	if (shp->shm_creator != NULL)
+	if (!list_empty(&shp->shm_clist))
 		return 0;
 
-	if (shm_may_destroy(ns, shp)) {
+	if (shm_may_destroy(shp)) {
 		shm_lock_by_ptr(shp);
 		shm_destroy(ns, shp);
 	}
@@ -382,48 +425,97 @@ void shm_destroy_orphaned(struct ipc_namespace *ns)
 /* Locking assumes this will only be called with task == current */
 void exit_shm(struct task_struct *task)
 {
-	struct ipc_namespace *ns = task->nsproxy->ipc_ns;
-	struct shmid_kernel *shp, *n;
+	for (;;) {
+		struct shmid_kernel *shp;
+		struct ipc_namespace *ns;
 
-	if (list_empty(&task->sysvshm.shm_clist))
-		return;
+		task_lock(task);
+
+		if (list_empty(&task->sysvshm.shm_clist)) {
+			task_unlock(task);
+			break;
+		}
+
+		shp = list_first_entry(&task->sysvshm.shm_clist, struct shmid_kernel,
+				shm_clist);
 
-	/*
-	 * If kernel.shm_rmid_forced is not set then only keep track of
-	 * which shmids are orphaned, so that a later set of the sysctl
-	 * can clean them up.
-	 */
-	if (!ns->shm_rmid_forced) {
-		down_read(&shm_ids(ns).rwsem);
-		list_for_each_entry(shp, &task->sysvshm.shm_clist, shm_clist)
-			shp->shm_creator = NULL;
 		/*
-		 * Only under read lock but we are only called on current
-		 * so no entry on the list will be shared.
+		 * 1) Get pointer to the ipc namespace. It is worth to say
+		 * that this pointer is guaranteed to be valid because
+		 * shp lifetime is always shorter than namespace lifetime
+		 * in which shp lives.
+		 * We taken task_lock it means that shp won't be freed.
 		 */
-		list_del(&task->sysvshm.shm_clist);
-		up_read(&shm_ids(ns).rwsem);
-		return;
-	}
+		ns = shp->ns;
 
-	/*
-	 * Destroy all already created segments, that were not yet mapped,
-	 * and mark any mapped as orphan to cover the sysctl toggling.
-	 * Destroy is skipped if shm_may_destroy() returns false.
-	 */
-	down_write(&shm_ids(ns).rwsem);
-	list_for_each_entry_safe(shp, n, &task->sysvshm.shm_clist, shm_clist) {
-		shp->shm_creator = NULL;
+		/*
+		 * 2) If kernel.shm_rmid_forced is not set then only keep track of
+		 * which shmids are orphaned, so that a later set of the sysctl
+		 * can clean them up.
+		 */
+		if (!ns->shm_rmid_forced)
+			goto unlink_continue;
 
-		if (shm_may_destroy(ns, shp)) {
-			shm_lock_by_ptr(shp);
-			shm_destroy(ns, shp);
+		/*
+		 * 3) get a reference to the namespace.
+		 *    The refcount could be already 0. If it is 0, then
+		 *    the shm objects will be free by free_ipc_work().
+		 */
+		ns = get_ipc_ns_not_zero(ns);
+		if (!ns) {
+unlink_continue:
+			list_del_init(&shp->shm_clist);
+			task_unlock(task);
+			continue;
 		}
-	}
 
-	/* Remove the list head from any segments still attached. */
-	list_del(&task->sysvshm.shm_clist);
-	up_write(&shm_ids(ns).rwsem);
+		/*
+		 * 4) get a reference to shp.
+		 *   This cannot fail: shm_clist_rm() is called before
+		 *   ipc_rmid(), thus the refcount cannot be 0.
+		 */
+		WARN_ON(!ipc_rcu_getref(&shp->shm_perm));
+
+		/*
+		 * 5) unlink the shm segment from the list of segments
+		 *    created by current.
+		 *    This must be done last. After unlinking,
+		 *    only the refcounts obtained above prevent IPC_RMID
+		 *    from destroying the segment or the namespace.
+		 */
+		list_del_init(&shp->shm_clist);
+
+		task_unlock(task);
+
+		/*
+		 * 6) we have all references
+		 *    Thus lock & if needed destroy shp.
+		 */
+		down_write(&shm_ids(ns).rwsem);
+		shm_lock_by_ptr(shp);
+		/*
+		 * rcu_read_lock was implicitly taken in shm_lock_by_ptr, it's
+		 * safe to call ipc_rcu_putref here
+		 */
+		ipc_rcu_putref(&shp->shm_perm, shm_rcu_free);
+
+		if (ipc_valid_object(&shp->shm_perm)) {
+			if (shm_may_destroy(shp))
+				shm_destroy(ns, shp);
+			else
+				shm_unlock(shp);
+		} else {
+			/*
+			 * Someone else deleted the shp from namespace
+			 * idr/kht while we have waited.
+			 * Just unlock and continue.
+			 */
+			shm_unlock(shp);
+		}
+
+		up_write(&shm_ids(ns).rwsem);
+		put_ipc_ns(ns); /* paired with get_ipc_ns_not_zero */
+	}
 }
 
 static vm_fault_t shm_fault(struct vm_fault *vmf)
@@ -680,7 +772,11 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	if (error < 0)
 		goto no_id;
 
+	shp->ns = ns;
+
+	task_lock(current);
 	list_add(&shp->shm_clist, &current->sysvshm.shm_clist);
+	task_unlock(current);
 
 	/*
 	 * shmid gets reported as "inode#" in /proc/pid/maps.
@@ -1573,7 +1669,8 @@ out_nattch:
 	down_write(&shm_ids(ns).rwsem);
 	shp = shm_lock(ns, shmid);
 	shp->shm_nattch--;
-	if (shm_may_destroy(ns, shp))
+
+	if (shm_may_destroy(shp))
 		shm_destroy(ns, shp);
 	else
 		shm_unlock(shp);
-- 
GitLab


From 98b02755d544ce26ac0a41ff52bf56f2bd79e4c0 Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Thu, 9 Sep 2021 17:23:22 +0800
Subject: [PATCH 1852/4878] net: stmmac: platform: fix build warning when with
 !CONFIG_PM_SLEEP

commit 2a48d96fd58a666ae231c3dd6fe4a458798ac645 upstream.

Use __maybe_unused for noirq_suspend()/noirq_resume() hooks to avoid
build warning with !CONFIG_PM_SLEEP:

>> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:796:12: error: 'stmmac_pltfr_noirq_resume' defined but not used [-Werror=unused-function]
     796 | static int stmmac_pltfr_noirq_resume(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c:775:12: error: 'stmmac_pltfr_noirq_suspend' defined but not used [-Werror=unused-function]
     775 | static int stmmac_pltfr_noirq_suspend(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors

Fixes: 276aae377206 ("net: stmmac: fix system hang caused by eee_ctrl_timer during suspend/resume")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 4387752b26d95..3183d8826981e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -779,7 +779,7 @@ static int __maybe_unused stmmac_runtime_resume(struct device *dev)
 	return stmmac_bus_clks_config(priv, true);
 }
 
-static int stmmac_pltfr_noirq_suspend(struct device *dev)
+static int __maybe_unused stmmac_pltfr_noirq_suspend(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
@@ -800,7 +800,7 @@ static int stmmac_pltfr_noirq_suspend(struct device *dev)
 	return 0;
 }
 
-static int stmmac_pltfr_noirq_resume(struct device *dev)
+static int __maybe_unused stmmac_pltfr_noirq_resume(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct stmmac_priv *priv = netdev_priv(ndev);
-- 
GitLab


From 45b42cd05391197d5426a9097043d5e77bdbefc9 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 18 Nov 2021 14:50:37 -0500
Subject: [PATCH 1853/4878] drm/amdgpu/gfx9: switch to golden tsc registers for
 renoir+

commit 53af98c091bc42fd9ec64cfabc40da4e5f3aae93 upstream.

Renoir and newer gfx9 APUs have new TSC register that is
not part of the gfxoff tile, so it can be read without
needing to disable gfx off.

Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 46 ++++++++++++++++++++-------
 1 file changed, 35 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index c7d6a677d86d8..bea451a39d601 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -137,6 +137,11 @@ MODULE_FIRMWARE("amdgpu/green_sardine_rlc.bin");
 #define mmTCP_CHAN_STEER_5_ARCT								0x0b0c
 #define mmTCP_CHAN_STEER_5_ARCT_BASE_IDX							0
 
+#define mmGOLDEN_TSC_COUNT_UPPER_Renoir                0x0025
+#define mmGOLDEN_TSC_COUNT_UPPER_Renoir_BASE_IDX       1
+#define mmGOLDEN_TSC_COUNT_LOWER_Renoir                0x0026
+#define mmGOLDEN_TSC_COUNT_LOWER_Renoir_BASE_IDX       1
+
 enum ta_ras_gfx_subblock {
 	/*CPC*/
 	TA_RAS_BLOCK__GFX_CPC_INDEX_START = 0,
@@ -4147,19 +4152,38 @@ failed_kiq_read:
 
 static uint64_t gfx_v9_0_get_gpu_clock_counter(struct amdgpu_device *adev)
 {
-	uint64_t clock;
+	uint64_t clock, clock_lo, clock_hi, hi_check;
 
-	amdgpu_gfx_off_ctrl(adev, false);
-	mutex_lock(&adev->gfx.gpu_clock_mutex);
-	if (adev->asic_type == CHIP_VEGA10 && amdgpu_sriov_runtime(adev)) {
-		clock = gfx_v9_0_kiq_read_clock(adev);
-	} else {
-		WREG32_SOC15(GC, 0, mmRLC_CAPTURE_GPU_CLOCK_COUNT, 1);
-		clock = (uint64_t)RREG32_SOC15(GC, 0, mmRLC_GPU_CLOCK_COUNT_LSB) |
-			((uint64_t)RREG32_SOC15(GC, 0, mmRLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
+	switch (adev->asic_type) {
+	case CHIP_RENOIR:
+		preempt_disable();
+		clock_hi = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Renoir);
+		clock_lo = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER_Renoir);
+		hi_check = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Renoir);
+		/* The SMUIO TSC clock frequency is 100MHz, which sets 32-bit carry over
+		 * roughly every 42 seconds.
+		 */
+		if (hi_check != clock_hi) {
+			clock_lo = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER_Renoir);
+			clock_hi = hi_check;
+		}
+		preempt_enable();
+		clock = clock_lo | (clock_hi << 32ULL);
+		break;
+	default:
+		amdgpu_gfx_off_ctrl(adev, false);
+		mutex_lock(&adev->gfx.gpu_clock_mutex);
+		if (adev->asic_type == CHIP_VEGA10 && amdgpu_sriov_runtime(adev)) {
+			clock = gfx_v9_0_kiq_read_clock(adev);
+		} else {
+			WREG32_SOC15(GC, 0, mmRLC_CAPTURE_GPU_CLOCK_COUNT, 1);
+			clock = (uint64_t)RREG32_SOC15(GC, 0, mmRLC_GPU_CLOCK_COUNT_LSB) |
+				((uint64_t)RREG32_SOC15(GC, 0, mmRLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
+		}
+		mutex_unlock(&adev->gfx.gpu_clock_mutex);
+		amdgpu_gfx_off_ctrl(adev, true);
+		break;
 	}
-	mutex_unlock(&adev->gfx.gpu_clock_mutex);
-	amdgpu_gfx_off_ctrl(adev, true);
 	return clock;
 }
 
-- 
GitLab


From a324ad794566ae2ad2d5aa7f7e3c1825fb5cd5b7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 1 Dec 2021 09:19:10 +0100
Subject: [PATCH 1854/4878] Linux 5.10.83

Link: https://lore.kernel.org/r/20211129181711.642046348@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 84b15766ad66f..4646baabfe783 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 82
+SUBLEVEL = 83
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From df21a6213e843866647d3f10af0f24717cd816b9 Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Tue, 16 Nov 2021 17:34:38 +0100
Subject: [PATCH 1855/4878] UPSTREAM: KVM: arm64: Cap KVM_CAP_NR_VCPUS by
 kvm_arm_default_max_vcpus()

Generally, it doesn't make sense to return the recommended maximum number
of vCPUs which exceeds the maximum possible number of vCPUs.

Note: ARM64 is special as the value returned by KVM_CAP_MAX_VCPUS differs
depending on whether it is a system-wide ioctl or a per-VM one. Previously,
KVM_CAP_NR_VCPUS didn't have this difference and it seems preferable to
keep the status quo. Cap KVM_CAP_NR_VCPUS by kvm_arm_default_max_vcpus()
which is what gets returned by system-wide KVM_CAP_MAX_VCPUS.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211116163443.88707-2-vkuznets@redhat.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit f60a00d7295057cb4baea5a321501efc72794453)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I8f4470d8a79d111b8f4a2730f97ec1bde4d76935
---
 arch/arm64/kvm/arm.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 547251459da3d..5183e5cf7e0ab 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -220,7 +220,14 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		r = 1;
 		break;
 	case KVM_CAP_NR_VCPUS:
-		r = num_online_cpus();
+		/*
+		 * ARM64 treats KVM_CAP_NR_CPUS differently from all other
+		 * architectures, as it does not always bound it to
+		 * KVM_CAP_MAX_VCPUS. It should not matter much because
+		 * this is just an advisory value.
+		 */
+		r = min_t(unsigned int, num_online_cpus(),
+			  kvm_arm_default_max_vcpus());
 		break;
 	case KVM_CAP_MAX_VCPUS:
 	case KVM_CAP_MAX_VCPU_ID:
-- 
GitLab


From e740c119d24b38f2f6ef181829848c76572a08f3 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 16 Nov 2021 10:20:06 +0000
Subject: [PATCH 1856/4878] UPSTREAM: KVM: arm64: Save PSTATE early on exit

In order to be able to use primitives such as vcpu_mode_is_32bit(),
we need to synchronize the guest PSTATE. However, this is currently
done deep into the bowels of the world-switch code, and we do have
helpers evaluating this much earlier (__vgic_v3_perform_cpuif_access
and handle_aarch32_guest, for example).

Move the saving of the guest pstate into the early fixups, which
cures the first issue. The second one will be addressed separately.

Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 83bb2c1a01d7127d5adc7d69d7aaa3f7072de2b4)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iddbe02a20d34c470651da59390fb7f76ba89ba4b
---
 arch/arm64/kvm/hyp/include/hyp/switch.h    | 6 ++++++
 arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 7 ++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index c6e98c7e918b1..d0d99da34ad40 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -425,6 +425,12 @@ static inline bool kvm_hyp_handle_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
  */
 static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
+	/*
+	 * Save PSTATE early so that we can evaluate the vcpu mode
+	 * early on.
+	 */
+	vcpu->arch.ctxt.regs.pstate = read_sysreg_el2(SYS_SPSR);
+
 	if (ARM_EXCEPTION_CODE(*exit_code) != ARM_EXCEPTION_IRQ)
 		vcpu->arch.fault.esr_el2 = read_sysreg_el2(SYS_ESR);
 
diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
index de7e14c862e6c..7ecca8b078519 100644
--- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
+++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
@@ -70,7 +70,12 @@ static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
 static inline void __sysreg_save_el2_return_state(struct kvm_cpu_context *ctxt)
 {
 	ctxt->regs.pc			= read_sysreg_el2(SYS_ELR);
-	ctxt->regs.pstate		= read_sysreg_el2(SYS_SPSR);
+	/*
+	 * Guest PSTATE gets saved at guest fixup time in all
+	 * cases. We still need to handle the nVHE host side here.
+	 */
+	if (!has_vhe() && ctxt->__hyp_running_vcpu)
+		ctxt->regs.pstate	= read_sysreg_el2(SYS_SPSR);
 
 	if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN))
 		ctxt_sys_reg(ctxt, DISR_EL1) = read_sysreg_s(SYS_VDISR_EL2);
-- 
GitLab


From cb3cc13c72ee0110794d5a978ddaa36e64d810cd Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 16 Nov 2021 12:39:35 +0000
Subject: [PATCH 1857/4878] UPSTREAM: KVM: arm64: Move pkvm's special 32bit
 handling into a generic infrastructure

Protected KVM is trying to turn AArch32 exceptions into an illegal
exception entry. Unfortunately, it does that in a way that is a bit
abrupt, and too early for PSTATE to be available.

Instead, move it to the fixup code, which is a more reasonable place
for it. This will also be useful for the NV code.

Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 7183b2b5ae6b8d77a37069566d77cf2a74060f7e)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I9e8926e8c9cd9399073216abb8885a3e2613836f
---
 arch/arm64/kvm/hyp/include/hyp/switch.h | 8 ++++++++
 arch/arm64/kvm/hyp/nvhe/switch.c        | 8 +-------
 arch/arm64/kvm/hyp/vhe/switch.c         | 4 ++++
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index d0d99da34ad40..0eb4589e9b24d 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -399,6 +399,8 @@ typedef bool (*exit_handler_fn)(struct kvm_vcpu *, u64 *);
 
 static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu);
 
+static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code);
+
 /*
  * Allow the hypervisor to handle the exit with an exit handler if it has one.
  *
@@ -431,6 +433,12 @@ static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 	 */
 	vcpu->arch.ctxt.regs.pstate = read_sysreg_el2(SYS_SPSR);
 
+	/*
+	 * Check whether we want to repaint the state one way or
+	 * another.
+	 */
+	early_exit_filter(vcpu, exit_code);
+
 	if (ARM_EXCEPTION_CODE(*exit_code) != ARM_EXCEPTION_IRQ)
 		vcpu->arch.fault.esr_el2 = read_sysreg_el2(SYS_ESR);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index c0e3fed26d930..d13115a124341 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -233,7 +233,7 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
  * Returns false if the guest ran in AArch32 when it shouldn't have, and
  * thus should exit to the host, or true if a the guest run loop can continue.
  */
-static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code)
+static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
 	struct kvm *kvm = kern_hyp_va(vcpu->kvm);
 
@@ -248,10 +248,7 @@ static bool handle_aarch32_guest(struct kvm_vcpu *vcpu, u64 *exit_code)
 		vcpu->arch.target = -1;
 		*exit_code &= BIT(ARM_EXIT_WITH_SERROR_BIT);
 		*exit_code |= ARM_EXCEPTION_IL;
-		return false;
 	}
-
-	return true;
 }
 
 /* Switch to the guest for legacy non-VHE systems */
@@ -316,9 +313,6 @@ int __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 		/* Jump in the fire! */
 		exit_code = __guest_enter(vcpu);
 
-		if (unlikely(!handle_aarch32_guest(vcpu, &exit_code)))
-			break;
-
 		/* And we're baaack! */
 	} while (fixup_guest_exit(vcpu, &exit_code));
 
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 5a2cb5d9bc4b2..fbb26b93c3477 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -112,6 +112,10 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
 	return hyp_exit_handlers;
 }
 
+static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+}
+
 /* Switch to the guest for VHE systems running in EL2 */
 static int __kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
 {
-- 
GitLab


From 02e966de95f6259365155aa25e8f3adc256c940b Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 25 Nov 2021 15:20:14 +0000
Subject: [PATCH 1858/4878] UPSTREAM: KVM: arm64: Avoid setting the upper 32
 bits of TCR_EL2 and CPTR_EL2 to 1

Having a signed (1 << 31) constant for TCR_EL2_RES1 and CPTR_EL2_TCPAC
causes the upper 32-bit to be set to 1 when assigning them to a 64-bit
variable. Bit 32 in TCR_EL2 is no longer RES0 in ARMv8.7: with FEAT_LPA2
it changes the meaning of bits 49:48 and 9:8 in the stage 1 EL2 page
table entries. As a result of the sign-extension, a non-VHE kernel can
no longer boot on a model with ARMv8.7 enabled.

CPTR_EL2 still has the top 32 bits RES0 but we should preempt any future
problems

Make these top bit constants unsigned as per commit df655b75c43f
("arm64: KVM: Avoid setting the upper 32 bits of VTCR_EL2 to 1").

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Chris January <Chris.January@arm.com>
Cc: <stable@vger.kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211125152014.2806582-1-catalin.marinas@arm.com
(cherry picked from commit 1f80d15020d7f130194821feb1432b67648c632d)
Bug: 204960018
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I078b87529df898086e0f883f28bd2e9ff7f0e74a
---
 arch/arm64/include/asm/kvm_arm.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index a39fcf318c774..01d47c5886dc4 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -91,7 +91,7 @@
 #define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H)
 
 /* TCR_EL2 Registers bits */
-#define TCR_EL2_RES1		((1 << 31) | (1 << 23))
+#define TCR_EL2_RES1		((1U << 31) | (1 << 23))
 #define TCR_EL2_TBI		(1 << 20)
 #define TCR_EL2_PS_SHIFT	16
 #define TCR_EL2_PS_MASK		(7 << TCR_EL2_PS_SHIFT)
@@ -276,7 +276,7 @@
 #define CPTR_EL2_TFP_SHIFT 10
 
 /* Hyp Coprocessor Trap Register */
-#define CPTR_EL2_TCPAC	(1 << 31)
+#define CPTR_EL2_TCPAC	(1U << 31)
 #define CPTR_EL2_TAM	(1 << 30)
 #define CPTR_EL2_TTA	(1 << 20)
 #define CPTR_EL2_TFP	(1 << CPTR_EL2_TFP_SHIFT)
-- 
GitLab


From 13b2af2668242b18cbaddb25b29a6454944337a7 Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Thu, 18 Nov 2021 21:58:44 +0800
Subject: [PATCH 1859/4878] UPSTREAM: erofs: fix deadlock when shrink erofs
 slab

We observed the following deadlock in the stress test under low
memory scenario:

Thread A                               Thread B
- erofs_shrink_scan
 - erofs_try_to_release_workgroup
  - erofs_workgroup_try_to_freeze -- A
                                       - z_erofs_do_read_page
                                        - z_erofs_collection_begin
                                         - z_erofs_register_collection
                                          - erofs_insert_workgroup
                                           - xa_lock(&sbi->managed_pslots) -- B
                                           - erofs_workgroup_get
                                            - erofs_wait_on_workgroup_freezed -- A
  - xa_erase
   - xa_lock(&sbi->managed_pslots) -- B

To fix this, it needs to hold xa_lock before freezing the workgroup
since xarray will be touched then. So let's hold the lock before
accessing each workgroup, just like what we did with the radix tree
before.

[ Gao Xiang: Jianhua Hao also reports this issue at
  https://lore.kernel.org/r/b10b85df30694bac8aadfe43537c897a@xiaomi.com ]

Link: https://lore.kernel.org/r/20211118135844.3559-1-huangjianan@oppo.com
Fixes: 64094a04414f ("erofs: convert workstn to XArray")
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Reported-by: Jianhua Hao <haojianhua1@xiaomi.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: haojianhua1 <haojianhua1@xiaomi.com>
Change-Id: Icdfb520c073de8773d44cff64fd5f7a8499cdc85
Signed-off-by: haojianhua1 <haojianhua1@xiaomi.com>

Bug:208318427
(cherry picked from commit 57bbeacdbee72a54eb97d56b876cf9c94059fc34)
Signed-off-by: Gao Xiang <xiang@kernel.org>

Change-Id: Ie282b4362898fa8e0c829b8c2454887e953a2610
Signed-off-by: haojianhua1 <haojianhua1@xiaomi.com>
-- 
GitLab


From c7ba583d0059527bff74fafdf0dc0cb8056aec62 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 27 Jul 2021 11:11:02 +0100
Subject: [PATCH 1860/4878] UPSTREAM: sched: Don't report SCHED_FLAG_SUGOV in
 sched_getattr()

SCHED_FLAG_SUGOV is supposed to be a kernel-only flag that userspace
cannot interact with. However, sched_getattr() currently reports it
in sched_flags if called on a sugov worker even though it is not
actually defined in a UAPI header. To avoid this, make sure to
clean-up the sched_flags field in sched_getattr() before returning to
userspace.

Bug: 208552362
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210727101103.2729607-3-qperret@google.com
(cherry picked from commit 7ad721bf10718a4e480a27ded8bb16b8f6feb2d1)
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I6ffe847ce0cc1135519b7061882d118cc8d683e1
---
 kernel/sched/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2080a1bcaf024..ee7453f52978e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6098,6 +6098,7 @@ SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr,
 		kattr.sched_priority = p->rt_priority;
 	else
 		kattr.sched_nice = task_nice(p);
+	kattr.sched_flags &= SCHED_FLAG_ALL;
 
 #ifdef CONFIG_UCLAMP_TASK
 	/*
-- 
GitLab


From 479f72db7d01ade516b508e4a24135ec53794532 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 5 Aug 2021 11:21:54 +0100
Subject: [PATCH 1861/4878] UPSTREAM: sched: Skip priority checks with
 SCHED_FLAG_KEEP_PARAMS

SCHED_FLAG_KEEP_PARAMS can be passed to sched_setattr to specify that
the call must not touch scheduling parameters (nice or priority). This
is particularly handy for uclamp when used in conjunction with
SCHED_FLAG_KEEP_POLICY as that allows to issue a syscall that only
impacts uclamp values.

However, sched_setattr always checks whether the priorities and nice
values passed in sched_attr are valid first, even if those never get
used down the line. This is useless at best since userspace can
trivially bypass this check to set the uclamp values by specifying low
priorities. However, it is cumbersome to do so as there is no single
expression of this that skips both RT and CFS checks at once. As such,
userspace needs to query the task policy first with e.g. sched_getattr
and then set sched_attr.sched_priority accordingly. This is racy and
slower than a single call.

As the priority and nice checks are useless when SCHED_FLAG_KEEP_PARAMS
is specified, simply inherit them in this case to match the policy
inheritance of SCHED_FLAG_KEEP_POLICY.

Bug: 208552362
Reported-by: Wei Wang <wvw@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Qais Yousef <qais.yousef@arm.com>
Link: https://lore.kernel.org/r/20210805102154.590709-3-qperret@google.com
(cherry picked from commit f4dddf90d58d77b48492b775868af4041a217f4c)
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I18913667e69e558d96cbe3d991c1920e8342bf8b
---
 kernel/sched/core.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index ee7453f52978e..45040cff1412d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5883,6 +5883,16 @@ err_size:
 	return -E2BIG;
 }
 
+static void get_params(struct task_struct *p, struct sched_attr *attr)
+{
+	if (task_has_dl_policy(p))
+		__getparam_dl(p, attr);
+	else if (task_has_rt_policy(p))
+		attr->sched_priority = p->rt_priority;
+	else
+		attr->sched_nice = task_nice(p);
+}
+
 /**
  * sys_sched_setscheduler - set/change the scheduler policy and RT priority
  * @pid: the pid in question.
@@ -5944,6 +5954,8 @@ SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr,
 	rcu_read_unlock();
 
 	if (likely(p)) {
+		if (attr.sched_flags & SCHED_FLAG_KEEP_PARAMS)
+			get_params(p, &attr);
 		retval = sched_setattr(p, &attr);
 		put_task_struct(p);
 	}
@@ -6092,12 +6104,7 @@ SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr,
 	kattr.sched_policy = p->policy;
 	if (p->sched_reset_on_fork)
 		kattr.sched_flags |= SCHED_FLAG_RESET_ON_FORK;
-	if (task_has_dl_policy(p))
-		__getparam_dl(p, &kattr);
-	else if (task_has_rt_policy(p))
-		kattr.sched_priority = p->rt_priority;
-	else
-		kattr.sched_nice = task_nice(p);
+	get_params(p, &kattr);
 	kattr.sched_flags &= SCHED_FLAG_ALL;
 
 #ifdef CONFIG_UCLAMP_TASK
-- 
GitLab


From 08aec89c676d384939f2c868961fb5607796f846 Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Thu, 18 Nov 2021 21:58:44 +0800
Subject: [PATCH 1862/4878] erofs: fix deadlock when shrink erofs slab

We observed the following deadlock in the stress test under low
memory scenario:

Thread A                               Thread B
- erofs_shrink_scan
 - erofs_try_to_release_workgroup
  - erofs_workgroup_try_to_freeze -- A
                                       - z_erofs_do_read_page
                                        - z_erofs_collection_begin
                                         - z_erofs_register_collection
                                          - erofs_insert_workgroup
                                           - xa_lock(&sbi->managed_pslots) -- B
                                           - erofs_workgroup_get
                                            - erofs_wait_on_workgroup_freezed -- A
  - xa_erase
   - xa_lock(&sbi->managed_pslots) -- B

To fix this, it needs to hold xa_lock before freezing the workgroup
since xarray will be touched then. So let's hold the lock before
accessing each workgroup, just like what we did with the radix tree
before.

[ Gao Xiang: Jianhua Hao also reports this issue at
  https://lore.kernel.org/r/b10b85df30694bac8aadfe43537c897a@xiaomi.com ]

Link: https://lore.kernel.org/r/20211118135844.3559-1-huangjianan@oppo.com
Fixes: 64094a04414f ("erofs: convert workstn to XArray")
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Reported-by: Jianhua Hao <haojianhua1@xiaomi.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>
---
 fs/erofs/utils.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c
index 84da2c2800129..ec9a1d780dc14 100644
--- a/fs/erofs/utils.c
+++ b/fs/erofs/utils.c
@@ -150,7 +150,7 @@ static bool erofs_try_to_release_workgroup(struct erofs_sb_info *sbi,
 	 * however in order to avoid some race conditions, add a
 	 * DBG_BUGON to observe this in advance.
 	 */
-	DBG_BUGON(xa_erase(&sbi->managed_pslots, grp->index) != grp);
+	DBG_BUGON(__xa_erase(&sbi->managed_pslots, grp->index) != grp);
 
 	/* last refcount should be connected with its managed pslot.  */
 	erofs_workgroup_unfreeze(grp, 0);
@@ -165,15 +165,19 @@ static unsigned long erofs_shrink_workstation(struct erofs_sb_info *sbi,
 	unsigned int freed = 0;
 	unsigned long index;
 
+	xa_lock(&sbi->managed_pslots);
 	xa_for_each(&sbi->managed_pslots, index, grp) {
 		/* try to shrink each valid workgroup */
 		if (!erofs_try_to_release_workgroup(sbi, grp))
 			continue;
+		xa_unlock(&sbi->managed_pslots);
 
 		++freed;
 		if (!--nr_shrink)
-			break;
+			return freed;
+		xa_lock(&sbi->managed_pslots);
 	}
+	xa_unlock(&sbi->managed_pslots);
 	return freed;
 }
 
-- 
GitLab


From fc827b344f76709dc7f242c7db32e1828f510fdd Mon Sep 17 00:00:00 2001
From: Jeson Gao <jeson.gao@unisoc.com>
Date: Mon, 29 Nov 2021 17:01:50 +0800
Subject: [PATCH 1863/4878] ANDROID: thermal: Add vendor hooks for thermal

Need to get the request frequency and target frequency
use it to do frequency check and modify it according to
the platform thermal requirements.

Bug: 208166320

Signed-off-by: Jeson Gao <jeson.gao@unisoc.com>
Change-Id: I776b43c8f559b8a072abd8d3abcb3528348b2c5d
---
 drivers/android/vendor_hooks.c    | 2 ++
 drivers/thermal/cpufreq_cooling.c | 5 +++++
 include/trace/hooks/thermal.h     | 8 ++++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 162b8b3f5f876..20bdd67149f99 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -374,3 +374,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_usb_dev_resume);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ipv6_gen_linklocal_addr);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sound_usb_support_cpu_suspend);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_snd_compr_use_pause_in_drain);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_request_freq);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_target_freq);
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index 6e1d6a31ee4fb..aee7ad4af6541 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -23,6 +23,7 @@
 #include <linux/thermal.h>
 
 #include <trace/events/thermal.h>
+#include <trace/hooks/thermal.h>
 
 /*
  * Cooling state <-> CPUFreq frequency
@@ -213,6 +214,8 @@ static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
 
 	freq = cpufreq_quick_get(policy->cpu);
 
+	trace_android_vh_modify_thermal_request_freq(policy, &freq);
+
 	if (trace_thermal_power_cpu_get_power_enabled()) {
 		u32 ncpus = cpumask_weight(policy->related_cpus);
 
@@ -312,6 +315,8 @@ static int cpufreq_power2state(struct thermal_cooling_device *cdev,
 	normalised_power = (power * 100) / last_load;
 	target_freq = cpu_power_to_freq(cpufreq_cdev, normalised_power);
 
+	trace_android_vh_modify_thermal_target_freq(policy, &target_freq);
+
 	*state = get_level(cpufreq_cdev, target_freq);
 	trace_thermal_power_cpu_limit(policy->related_cpus, target_freq, *state,
 				      power);
diff --git a/include/trace/hooks/thermal.h b/include/trace/hooks/thermal.h
index 944454ca0e481..97be2675f3b86 100644
--- a/include/trace/hooks/thermal.h
+++ b/include/trace/hooks/thermal.h
@@ -19,6 +19,14 @@ DECLARE_HOOK(android_vh_thermal_pm_notify_suspend,
 	     TP_PROTO(struct thermal_zone_device *tz, int *irq_wakeable),
 	     TP_ARGS(tz, irq_wakeable));
 
+DECLARE_HOOK(android_vh_modify_thermal_request_freq,
+	TP_PROTO(struct cpufreq_policy *policy, unsigned long *request_freq),
+	TP_ARGS(policy, request_freq));
+
+DECLARE_HOOK(android_vh_modify_thermal_target_freq,
+	TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq),
+	TP_ARGS(policy, target_freq));
+
 #endif /* _TRACE_HOOK_THERMAL_H */
 /* This part must be outside protection */
 #include <trace/define_trace.h>
-- 
GitLab


From 160ebf93a988cf4beca0a5608cf25fd4acc0674a Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 17 Sep 2021 14:14:23 +0100
Subject: [PATCH 1864/4878] UPSTREAM: of: restricted dma: Fix condition for
 rmem init

of_dma_set_restricted_buffer fails to handle negative return values from
of_property_count_elems_of_size, e.g. when the property does not exist.
This results in an attempt to assign a non-existent reserved memory
region to the device and a warning being printed. Fix the condition to
take negative values into account.

Fixes: f3cfd136aef0 ("of: restricted dma: Don't fail device probe on rmem init failure")
Cc: Will Deacon <will@kernel.org>
Signed-off-by: David Brazdil <dbrazdil@google.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210917131423.2760155-1-dbrazdil@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
(cherry picked from commit 31c8025fac3d8bbff7ce4602338d88efc2d7972c)
Bug: 190591509
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I2a5ea9ba6f78d2998cb5db040a2e13e85ec0194f
---
 drivers/of/device.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/of/device.c b/drivers/of/device.c
index f0594e91565a7..7a662cd62abff 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -106,7 +106,11 @@ of_dma_set_restricted_buffer(struct device *dev, struct device_node *np)
 			break;
 	}
 
-	if (i != count && of_reserved_mem_device_init_by_idx(dev, of_node, i))
+	/*
+	 * Attempt to initialize a restricted-dma-pool region if one was found.
+	 * Note that count can hold a negative error code.
+	 */
+	if (i < count && of_reserved_mem_device_init_by_idx(dev, of_node, i))
 		dev_warn(dev, "failed to initialise \"restricted-dma-pool\" memory node\n");
 }
 
-- 
GitLab


From cf33d6fae045e439b0dde37c7083ad2cdb5e07ac Mon Sep 17 00:00:00 2001
From: "vincent.wang" <vincent.wang@unisoc.com>
Date: Thu, 2 Dec 2021 11:50:26 +0800
Subject: [PATCH 1865/4878] ANDROID: vendor_hooks: add a hook to control the
 delay time of frequency up and down.

balance the power and performance via the different delay time.

Bug: 208722787

Signed-off-by: vincent.wang <vincent.wang@unisoc.com>
Change-Id: I104a090bc697ab9c68007081e6533820364f1351
---
 drivers/android/vendor_hooks.c   | 1 +
 include/trace/hooks/sched.h      | 5 +++++
 kernel/sched/cpufreq_schedutil.c | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 20bdd67149f99..bb2f17f9a32fe 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -188,6 +188,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_format_check);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_dump_buffer);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_allow_domain_state);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_map_util_freq);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_update_next_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_report_bug);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_em_cpu_energy);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_up);
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index ea001c708eef9..ac58cf3b312ec 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -236,6 +236,11 @@ DECLARE_HOOK(android_vh_map_util_freq,
 		bool *need_freq_update),
 	TP_ARGS(util, freq, cap, next_freq, policy, need_freq_update));
 
+DECLARE_HOOK(android_vh_update_next_freq,
+	TP_PROTO(struct cpufreq_policy *policy, unsigned int old_next_freq,
+		unsigned int *new_next_freq, s64 delta_ns),
+	TP_ARGS(policy, old_next_freq, new_next_freq, delta_ns));
+
 struct em_perf_domain;
 DECLARE_HOOK(android_vh_em_cpu_energy,
 	TP_PROTO(struct em_perf_domain *pd,
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index b365895c2e2eb..fe914ba418322 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -104,6 +104,9 @@ static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
 				   unsigned int next_freq)
 {
 	if (!sg_policy->need_freq_update) {
+		s64 delta_ns = time - sg_policy->last_freq_update_time;
+		trace_android_vh_update_next_freq(sg_policy->policy, sg_policy->next_freq,
+				&next_freq, delta_ns);
 		if (sg_policy->next_freq == next_freq)
 			return false;
 	} else {
-- 
GitLab


From 4266de9b4bcf857c3439f802c97fd6147ff109c3 Mon Sep 17 00:00:00 2001
From: Martin Liu <liumartin@google.com>
Date: Thu, 14 Oct 2021 14:49:19 +0000
Subject: [PATCH 1866/4878] ANDROID: sched: move blocked reason trace point to
 cover all class

Now, we only export CFS taks' blocked reasons but it's
important and useful to know other class' blocked
reasons such as RT tasks.

Move the blocked reason trace point to where the scheduler
core layer and before the task's state moves to the waking
state. Thus, we could cover all the sched classes.

Bug: 203080186
Test: check traces
Signed-off-by: Martin Liu <liumartin@google.com>
Change-Id: Ic61865642d852d0127cdcf474adf8c06e4c2d570
(cherry picked from commit 44447dec6eff07fbcddac66d7b153928beb5005c)
Signed-off-by: Quentin Perret <qperret@google.com>
---
 kernel/sched/core.c | 3 +++
 kernel/sched/fair.c | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 45040cff1412d..7870fd5c1528c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3116,6 +3116,9 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
 	if (READ_ONCE(p->on_rq) && ttwu_runnable(p, wake_flags))
 		goto unlock;
 
+	if (p->state & TASK_UNINTERRUPTIBLE)
+		trace_sched_blocked_reason(p);
+
 #ifdef CONFIG_SMP
 	/*
 	 * Ensure we load p->on_cpu _after_ p->on_rq, otherwise it would be
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index bd931b9386e91..8af9f00fde4fb 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -999,7 +999,6 @@ update_stats_enqueue_sleeper(struct cfs_rq *cfs_rq, struct sched_entity *se)
 			}
 
 			trace_sched_stat_blocked(tsk, delta);
-			trace_sched_blocked_reason(tsk);
 
 			/*
 			 * Blocking time is in units of nanosecs, so shift by
-- 
GitLab


From 52ec143f0b8da810b2397da98247d4c2988441ee Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 10 Jun 2021 15:13:06 +0000
Subject: [PATCH 1867/4878] ANDROID: sched: Make uclamp changes depend on
 CAP_SYS_NICE

There is currently nothing preventing tasks from changing their per-task
clamp values in anyway that they like. The rationale is probably that
system administrators are still able to limit those clamps thanks to the
cgroup interface. However, this causes pain in a system where both
per-task and per-cgroup clamp values are expected to be under the
control of core system components (as is the case for Android).

To fix this, let's require CAP_SYS_NICE to change per-task clamp values.
There are ongoing discussions upstream about more flexible approaches
than this using the RLIMIT API -- see [1]. But the upstream discussion
has not converged yet, and this is way too late for UAPI changes in
android12-5.10 anyway, so let's apply this change which provides the
behaviour we want without actually impacting UAPIs.

[1] https://lore.kernel.org/lkml/20210623123441.592348-4-qperret@google.com/

Bug: 187186685
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I749312a77306460318ac5374cf243d00b78120dd
---
 kernel/sched/core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7870fd5c1528c..f7773c3bfda71 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5534,6 +5534,10 @@ recheck:
 		/* Normal users shall not reset the sched_reset_on_fork flag: */
 		if (p->sched_reset_on_fork && !reset_on_fork)
 			return -EPERM;
+
+		/* Can't change util-clamps */
+		if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP)
+			return -EPERM;
 	}
 
 	if (user) {
-- 
GitLab


From ee507cfc11842e47ba30f2aa89da9c8dec825ed8 Mon Sep 17 00:00:00 2001
From: Konstantin Vyshetsky <vkon@google.com>
Date: Thu, 2 Dec 2021 17:47:45 -0800
Subject: [PATCH 1868/4878] ANDROID: ABI: update generic symbol list

add blk_crypto_init_key

Bug: 202417931
Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Change-Id: I6976ec1519ec9f5fcc4d557cccfce8a26335ce17
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index d02a4d4d0cde5..8c7892fd82415 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -70,6 +70,7 @@
   __bitmap_weight
   blk_alloc_queue
   blk_cleanup_queue
+  blk_crypto_init_key
   blkdev_get_by_dev
   blkdev_get_by_path
   blkdev_put
-- 
GitLab


From 395d0451237fb14d801591d0a42c2abaa6641d03 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 6 Dec 2021 11:03:06 +0000
Subject: [PATCH 1869/4878] ANDROID: KVM: arm64: Initialize pkvm_pgtable.mm_ops
 earlier

The `init` callback of an IOMMU driver is called just before
`finalize_host_mappings` so that EL2 mappings created by drivers are
subsequently unmapped from host stage-2. However, at this point hyp has
already switched to the buddy allocator, having reserved pages allocated
by the early allocator, but `pkvm_pgtable.mm_ops` have not been switched
to buddy allocator callbacks. As a result, pages allocated for EL2
mappings of the IOMMU driver are allocated by the obsoleted early
allocator and remain treated as free by the buddy allocator. This likely
leads to a corruption in the free page lists and a later hyp panic.

Move the initialization of `pkvm_pgtable.mm_ops` before
`finalize_host_mappings` and the call to IOMMU's `init`.

Test: run a VM
Test: adb shell cmd jobscheduler run -f android 5132250
Bug: 190463801
Bug: 209004831
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I42ad28e6b4cfb014d50dbbf722e4c02d5f684178
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 3fc7409604f32..ab09d41ad08f4 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -256,6 +256,15 @@ void __noreturn __pkvm_init_finalise(void)
 	if (ret)
 		goto out;
 
+	pkvm_pgtable_mm_ops = (struct kvm_pgtable_mm_ops) {
+		.zalloc_page = hyp_zalloc_hyp_page,
+		.phys_to_virt = hyp_phys_to_virt,
+		.virt_to_phys = hyp_virt_to_phys,
+		.get_page = hpool_get_page,
+		.put_page = hpool_put_page,
+	};
+	pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
+
 	if (kvm_iommu_ops.init) {
 		ret = kvm_iommu_ops.init();
 		if (ret)
@@ -266,15 +275,6 @@ void __noreturn __pkvm_init_finalise(void)
 	if (ret)
 		goto out;
 
-	pkvm_pgtable_mm_ops = (struct kvm_pgtable_mm_ops) {
-		.zalloc_page = hyp_zalloc_hyp_page,
-		.phys_to_virt = hyp_phys_to_virt,
-		.virt_to_phys = hyp_virt_to_phys,
-		.get_page = hpool_get_page,
-		.put_page = hpool_put_page,
-	};
-	pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
-
 out:
 	/*
 	 * We tail-called to here from handle___pkvm_init() and will not return,
-- 
GitLab


From 066577ef6362367d659c06f4bfdce44e74c9cc18 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 29 Nov 2021 10:36:12 -0800
Subject: [PATCH 1870/4878] f2fs: show number of pending discard commands

This information can be used to check how much time we need to give to issue
all the discard commands.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs |  5 +++++
 fs/f2fs/sysfs.c                         | 11 +++++++++++
 2 files changed, 16 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index b8e6112d19c92..f20c03eaa7c19 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -112,6 +112,11 @@ Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
 Description:	Set timeout to issue discard commands during umount.
 	        Default: 5 secs
 
+What:		/sys/fs/f2fs/<disk>/pending_discard
+Date:		November 2021
+Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:	Shows the number of pending discard commands in the queue.
+
 What:		/sys/fs/f2fs/<disk>/max_victim_search
 Date:		January 2014
 Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index f64ecc30f4640..375188444cf6a 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -118,6 +118,15 @@ static ssize_t sb_status_show(struct f2fs_attr *a,
 	return sprintf(buf, "%lx\n", sbi->s_flag);
 }
 
+static ssize_t pending_discard_show(struct f2fs_attr *a,
+		struct f2fs_sb_info *sbi, char *buf)
+{
+	if (!SM_I(sbi)->dcc_info)
+		return -EINVAL;
+	return sprintf(buf, "%llu\n", (unsigned long long)atomic_read(
+				&SM_I(sbi)->dcc_info->discard_cmd_cnt));
+}
+
 static ssize_t features_show(struct f2fs_attr *a,
 		struct f2fs_sb_info *sbi, char *buf)
 {
@@ -744,6 +753,7 @@ F2FS_GENERAL_RO_ATTR(unusable);
 F2FS_GENERAL_RO_ATTR(encoding);
 F2FS_GENERAL_RO_ATTR(mounted_time_sec);
 F2FS_GENERAL_RO_ATTR(main_blkaddr);
+F2FS_GENERAL_RO_ATTR(pending_discard);
 #ifdef CONFIG_F2FS_STAT_FS
 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
@@ -812,6 +822,7 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(main_blkaddr),
 	ATTR_LIST(max_small_discards),
 	ATTR_LIST(discard_granularity),
+	ATTR_LIST(pending_discard),
 	ATTR_LIST(batched_trim_sections),
 	ATTR_LIST(ipu_policy),
 	ATTR_LIST(min_ipu_util),
-- 
GitLab


From 1e07ac1019c0c3879ea9a4b9fcbd134f4ba16623 Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Wed, 10 Nov 2021 10:37:13 +0800
Subject: [PATCH 1871/4878] f2fs: compress: reduce one page array alloc and
 free when write compressed page

Don't alloc new page pointers array to replace old, just use old, introduce
valid_nr_cpages to indicate valid number of page pointers in array, try to
reduce one page array alloc and free when write compress page.

Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/compress.c | 32 ++++++++++----------------------
 fs/f2fs/data.c     |  1 +
 fs/f2fs/f2fs.h     |  1 +
 3 files changed, 12 insertions(+), 22 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 7588e4e817b89..1addd14cff80e 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -153,6 +153,7 @@ void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse)
 	cc->rpages = NULL;
 	cc->nr_rpages = 0;
 	cc->nr_cpages = 0;
+	cc->valid_nr_cpages = 0;
 	if (!reuse)
 		cc->cluster_idx = NULL_CLUSTER;
 }
@@ -619,7 +620,6 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
 	const struct f2fs_compress_ops *cops =
 				f2fs_cops[fi->i_compress_algorithm];
 	unsigned int max_len, new_nr_cpages;
-	struct page **new_cpages;
 	u32 chksum = 0;
 	int i, ret;
 
@@ -634,6 +634,7 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
 
 	max_len = COMPRESS_HEADER_SIZE + cc->clen;
 	cc->nr_cpages = DIV_ROUND_UP(max_len, PAGE_SIZE);
+	cc->valid_nr_cpages = cc->nr_cpages;
 
 	cc->cpages = page_array_alloc(cc->inode, cc->nr_cpages);
 	if (!cc->cpages) {
@@ -684,13 +685,6 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
 
 	new_nr_cpages = DIV_ROUND_UP(cc->clen + COMPRESS_HEADER_SIZE, PAGE_SIZE);
 
-	/* Now we're going to cut unnecessary tail pages */
-	new_cpages = page_array_alloc(cc->inode, new_nr_cpages);
-	if (!new_cpages) {
-		ret = -ENOMEM;
-		goto out_vunmap_cbuf;
-	}
-
 	/* zero out any unused part of the last page */
 	memset(&cc->cbuf->cdata[cc->clen], 0,
 			(new_nr_cpages * PAGE_SIZE) -
@@ -700,10 +694,8 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
 	vm_unmap_ram(cc->rbuf, cc->cluster_size);
 
 	for (i = 0; i < cc->nr_cpages; i++) {
-		if (i < new_nr_cpages) {
-			new_cpages[i] = cc->cpages[i];
+		if (i < new_nr_cpages)
 			continue;
-		}
 		f2fs_compress_free_page(cc->cpages[i]);
 		cc->cpages[i] = NULL;
 	}
@@ -711,9 +703,7 @@ static int f2fs_compress_pages(struct compress_ctx *cc)
 	if (cops->destroy_compress_ctx)
 		cops->destroy_compress_ctx(cc);
 
-	page_array_free(cc->inode, cc->cpages, cc->nr_cpages);
-	cc->cpages = new_cpages;
-	cc->nr_cpages = new_nr_cpages;
+	cc->valid_nr_cpages = new_nr_cpages;
 
 	trace_f2fs_compress_pages_end(cc->inode, cc->cluster_idx,
 							cc->clen, ret);
@@ -1307,14 +1297,14 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 
 	cic->magic = F2FS_COMPRESSED_PAGE_MAGIC;
 	cic->inode = inode;
-	atomic_set(&cic->pending_pages, cc->nr_cpages);
+	atomic_set(&cic->pending_pages, cc->valid_nr_cpages);
 	cic->rpages = page_array_alloc(cc->inode, cc->cluster_size);
 	if (!cic->rpages)
 		goto out_put_cic;
 
 	cic->nr_rpages = cc->cluster_size;
 
-	for (i = 0; i < cc->nr_cpages; i++) {
+	for (i = 0; i < cc->valid_nr_cpages; i++) {
 		f2fs_set_compressed_page(cc->cpages[i], inode,
 					cc->rpages[i + 1]->index, cic);
 		fio.compressed_page = cc->cpages[i];
@@ -1359,7 +1349,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 		if (fio.compr_blocks && __is_valid_data_blkaddr(blkaddr))
 			fio.compr_blocks++;
 
-		if (i > cc->nr_cpages) {
+		if (i > cc->valid_nr_cpages) {
 			if (__is_valid_data_blkaddr(blkaddr)) {
 				f2fs_invalidate_blocks(sbi, blkaddr);
 				f2fs_update_data_blkaddr(&dn, NEW_ADDR);
@@ -1384,8 +1374,8 @@ unlock_continue:
 
 	if (fio.compr_blocks)
 		f2fs_i_compr_blocks_update(inode, fio.compr_blocks - 1, false);
-	f2fs_i_compr_blocks_update(inode, cc->nr_cpages, true);
-	add_compr_block_stat(inode, cc->nr_cpages);
+	f2fs_i_compr_blocks_update(inode, cc->valid_nr_cpages, true);
+	add_compr_block_stat(inode, cc->valid_nr_cpages);
 
 	set_inode_flag(cc->inode, FI_APPEND_WRITE);
 	if (cc->cluster_idx == 0)
@@ -1423,9 +1413,7 @@ out_unlock_op:
 	else
 		f2fs_unlock_op(sbi);
 out_free:
-	for (i = 0; i < cc->nr_cpages; i++) {
-		if (!cc->cpages[i])
-			continue;
+	for (i = 0; i < cc->valid_nr_cpages; i++) {
 		f2fs_compress_free_page(cc->cpages[i]);
 		cc->cpages[i] = NULL;
 	}
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index dc8add3ccf82e..e540f24c3b97c 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2997,6 +2997,7 @@ static int f2fs_write_cache_pages(struct address_space *mapping,
 		.rpages = NULL,
 		.nr_rpages = 0,
 		.cpages = NULL,
+		.valid_nr_cpages = 0,
 		.rbuf = NULL,
 		.cbuf = NULL,
 		.rlen = PAGE_SIZE * F2FS_I(inode)->i_cluster_size,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 509afc88b0f83..c4145761e2259 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1487,6 +1487,7 @@ struct compress_ctx {
 	unsigned int nr_rpages;		/* total page number in rpages */
 	struct page **cpages;		/* pages store compressed data in cluster */
 	unsigned int nr_cpages;		/* total page number in cpages */
+	unsigned int valid_nr_cpages;	/* valid page number in cpages */
 	void *rbuf;			/* virtual mapped address on rpages */
 	struct compress_data *cbuf;	/* virtual mapped address on cpages */
 	size_t rlen;			/* valid data length in rbuf */
-- 
GitLab


From 19a8616c60a30fbf31d1d634c30f74a8f6f201ed Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 16 Jul 2021 09:39:13 -0500
Subject: [PATCH 1872/4878] f2fs: rework write preallocations

f2fs_write_begin() assumes that all blocks were preallocated by
default unless FI_NO_PREALLOC is explicitly set.  This invites data
corruption, as there are cases in which not all blocks are preallocated.
Commit 47501f87c61a ("f2fs: preallocate DIO blocks when forcing
buffered_io") fixed one case, but there are others remaining.

Fix up this logic by replacing this flag with FI_PREALLOCATED_ALL, which
only gets set if all blocks for the current write were preallocated.

Also clean up f2fs_preallocate_blocks(), move it to file.c, and make it
handle some of the logic that was previously in write_iter() directly.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c |  55 ++-------------------
 fs/f2fs/f2fs.h |   3 +-
 fs/f2fs/file.c | 131 +++++++++++++++++++++++++++++++------------------
 3 files changed, 88 insertions(+), 101 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index e540f24c3b97c..cf8e0044d7c08 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1394,53 +1394,6 @@ alloc:
 	return 0;
 }
 
-int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from)
-{
-	struct inode *inode = file_inode(iocb->ki_filp);
-	struct f2fs_map_blocks map;
-	int flag;
-	int err = 0;
-	bool direct_io = iocb->ki_flags & IOCB_DIRECT;
-
-	map.m_lblk = F2FS_BLK_ALIGN(iocb->ki_pos);
-	map.m_len = F2FS_BYTES_TO_BLK(iocb->ki_pos + iov_iter_count(from));
-	if (map.m_len > map.m_lblk)
-		map.m_len -= map.m_lblk;
-	else
-		map.m_len = 0;
-
-	map.m_next_pgofs = NULL;
-	map.m_next_extent = NULL;
-	map.m_seg_type = NO_CHECK_TYPE;
-	map.m_may_create = true;
-
-	if (direct_io) {
-		map.m_seg_type = f2fs_rw_hint_to_seg_type(iocb->ki_hint);
-		flag = f2fs_force_buffered_io(inode, iocb, from) ?
-					F2FS_GET_BLOCK_PRE_AIO :
-					F2FS_GET_BLOCK_PRE_DIO;
-		goto map_blocks;
-	}
-	if (iocb->ki_pos + iov_iter_count(from) > MAX_INLINE_DATA(inode)) {
-		err = f2fs_convert_inline_inode(inode);
-		if (err)
-			return err;
-	}
-	if (f2fs_has_inline_data(inode))
-		return err;
-
-	flag = F2FS_GET_BLOCK_PRE_AIO;
-
-map_blocks:
-	err = f2fs_map_blocks(inode, &map, 1, flag);
-	if (map.m_len > 0 && err == -ENOSPC) {
-		if (!direct_io)
-			set_inode_flag(inode, FI_NO_PREALLOC);
-		err = 0;
-	}
-	return err;
-}
-
 void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock)
 {
 	if (flag == F2FS_GET_BLOCK_PRE_AIO) {
@@ -3350,12 +3303,10 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi,
 	int flag;
 
 	/*
-	 * we already allocated all the blocks, so we don't need to get
-	 * the block addresses when there is no need to fill the page.
+	 * If a whole page is being written and we already preallocated all the
+	 * blocks, then there is no need to get a block address now.
 	 */
-	if (!f2fs_has_inline_data(inode) && len == PAGE_SIZE &&
-	    !is_inode_flag_set(inode, FI_NO_PREALLOC) &&
-	    !f2fs_verity_in_progress(inode))
+	if (len == PAGE_SIZE && is_inode_flag_set(inode, FI_PREALLOCATED_ALL))
 		return 0;
 
 	/* f2fs_lock_op avoids race between write CP and convert_inline_page */
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index c4145761e2259..dc89e0b2acc8e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -715,7 +715,7 @@ enum {
 	FI_INLINE_DOTS,		/* indicate inline dot dentries */
 	FI_DO_DEFRAG,		/* indicate defragment is running */
 	FI_DIRTY_FILE,		/* indicate regular/symlink has dirty pages */
-	FI_NO_PREALLOC,		/* indicate skipped preallocated blocks */
+	FI_PREALLOCATED_ALL,	/* all blocks for write were preallocated */
 	FI_HOT_DATA,		/* indicate file is hot */
 	FI_EXTRA_ATTR,		/* indicate file has extra attribute */
 	FI_PROJ_INHERIT,	/* indicate file inherits projectid */
@@ -3612,7 +3612,6 @@ void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr);
 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count);
 int f2fs_reserve_new_block(struct dnode_of_data *dn);
 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index);
-int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from);
 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index);
 struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 			int op_flags, bool for_write);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 45d76a6617303..1f10a5fb21c5a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4367,10 +4367,77 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 	return ret;
 }
 
+/*
+ * Preallocate blocks for a write request, if it is possible and helpful to do
+ * so.  Returns a positive number if blocks may have been preallocated, 0 if no
+ * blocks were preallocated, or a negative errno value if something went
+ * seriously wrong.  Also sets FI_PREALLOCATED_ALL on the inode if *all* the
+ * requested blocks (not just some of them) have been allocated.
+ */
+static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter)
+{
+	struct inode *inode = file_inode(iocb->ki_filp);
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	const loff_t pos = iocb->ki_pos;
+	const size_t count = iov_iter_count(iter);
+	struct f2fs_map_blocks map = {};
+	bool dio = (iocb->ki_flags & IOCB_DIRECT) &&
+		   !f2fs_force_buffered_io(inode, iocb, iter);
+	int flag;
+	int ret;
+
+	/* If it will be an out-of-place direct write, don't bother. */
+	if (dio && f2fs_lfs_mode(sbi))
+		return 0;
+
+	/* No-wait I/O can't allocate blocks. */
+	if (iocb->ki_flags & IOCB_NOWAIT)
+		return 0;
+
+	/* If it will be a short write, don't bother. */
+	if (iov_iter_fault_in_readable(iter, count))
+		return 0;
+
+	if (f2fs_has_inline_data(inode)) {
+		/* If the data will fit inline, don't bother. */
+		if (pos + count <= MAX_INLINE_DATA(inode))
+			return 0;
+		ret = f2fs_convert_inline_inode(inode);
+		if (ret)
+			return ret;
+	}
+
+	/* Do not preallocate blocks that will be written partially in 4KB. */
+	map.m_lblk = F2FS_BLK_ALIGN(pos);
+	map.m_len = F2FS_BYTES_TO_BLK(pos + count);
+	if (map.m_len > map.m_lblk)
+		map.m_len -= map.m_lblk;
+	else
+		map.m_len = 0;
+	map.m_may_create = true;
+	if (dio) {
+		map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
+		flag = F2FS_GET_BLOCK_PRE_DIO;
+	} else {
+		map.m_seg_type = NO_CHECK_TYPE;
+		flag = F2FS_GET_BLOCK_PRE_AIO;
+	}
+
+	ret = f2fs_map_blocks(inode, &map, 1, flag);
+	/* -ENOSPC is only a fatal error if no blocks could be allocated. */
+	if (ret < 0 && !(ret == -ENOSPC && map.m_len > 0))
+		return ret;
+	if (ret == 0)
+		set_inode_flag(inode, FI_PREALLOCATED_ALL);
+	return map.m_len;
+}
+
 static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file_inode(file);
+	loff_t target_size;
+	int preallocated;
 	ssize_t ret;
 
 	if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
@@ -4394,84 +4461,54 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 
 	if (unlikely(IS_IMMUTABLE(inode))) {
 		ret = -EPERM;
-		goto unlock;
+		goto out_unlock;
 	}
 
 	if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
 		ret = -EPERM;
-		goto unlock;
+		goto out_unlock;
 	}
 
 	ret = generic_write_checks(iocb, from);
 	if (ret > 0) {
-		bool preallocated = false;
-		size_t target_size = 0;
-		int err;
-
-		if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
-			set_inode_flag(inode, FI_NO_PREALLOC);
-
-		if ((iocb->ki_flags & IOCB_NOWAIT)) {
+		if (iocb->ki_flags & IOCB_NOWAIT) {
 			if (!f2fs_overwrite_io(inode, iocb->ki_pos,
 						iov_iter_count(from)) ||
 				f2fs_has_inline_data(inode) ||
 				f2fs_force_buffered_io(inode, iocb, from)) {
-				clear_inode_flag(inode, FI_NO_PREALLOC);
-				inode_unlock(inode);
 				ret = -EAGAIN;
-				goto out;
+				goto out_unlock;
 			}
-			goto write;
 		}
-
-		if (is_inode_flag_set(inode, FI_NO_PREALLOC))
-			goto write;
-
 		if (iocb->ki_flags & IOCB_DIRECT) {
-			/*
-			 * Convert inline data for Direct I/O before entering
-			 * f2fs_direct_IO().
-			 */
-			err = f2fs_convert_inline_inode(inode);
-			if (err)
-				goto out_err;
-			/*
-			 * If force_buffere_io() is true, we have to allocate
-			 * blocks all the time, since f2fs_direct_IO will fall
-			 * back to buffered IO.
-			 */
-			if (!f2fs_force_buffered_io(inode, iocb, from) &&
-					f2fs_lfs_mode(F2FS_I_SB(inode)))
-				goto write;
+			ret = f2fs_convert_inline_inode(inode);
+			if (ret)
+				goto out_unlock;
 		}
-		preallocated = true;
+		/* Possibly preallocate the blocks for the write. */
 		target_size = iocb->ki_pos + iov_iter_count(from);
-
-		err = f2fs_preallocate_blocks(iocb, from);
-		if (err) {
-out_err:
-			clear_inode_flag(inode, FI_NO_PREALLOC);
-			inode_unlock(inode);
-			ret = err;
-			goto out;
+		preallocated = f2fs_preallocate_blocks(iocb, from);
+		if (preallocated < 0) {
+			ret = preallocated;
+			goto out_unlock;
 		}
-write:
+
 		ret = __generic_file_write_iter(iocb, from);
-		clear_inode_flag(inode, FI_NO_PREALLOC);
 
-		/* if we couldn't write data, we should deallocate blocks. */
-		if (preallocated && i_size_read(inode) < target_size) {
+		/* Don't leave any preallocated blocks around past i_size. */
+		if (preallocated > 0 && i_size_read(inode) < target_size) {
 			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 			down_write(&F2FS_I(inode)->i_mmap_sem);
 			f2fs_truncate(inode);
 			up_write(&F2FS_I(inode)->i_mmap_sem);
 			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		}
+		clear_inode_flag(inode, FI_PREALLOCATED_ALL);
 
 		if (ret > 0)
 			f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
 	}
-unlock:
+out_unlock:
 	inode_unlock(inode);
 out:
 	trace_f2fs_file_write_iter(inode, iocb->ki_pos,
-- 
GitLab


From 661b9edf22bc9bc3220126022724dd812e37c28a Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 16 Jul 2021 09:39:14 -0500
Subject: [PATCH 1873/4878] f2fs: reduce indentation in f2fs_file_write_iter()

Replace 'if (ret > 0)' with 'if (ret <= 0) goto out_unlock;'.
No change in behavior.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 64 +++++++++++++++++++++++++++-----------------------
 1 file changed, 34 insertions(+), 30 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1f10a5fb21c5a..738277f39a24f 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4470,44 +4470,48 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 	ret = generic_write_checks(iocb, from);
-	if (ret > 0) {
-		if (iocb->ki_flags & IOCB_NOWAIT) {
-			if (!f2fs_overwrite_io(inode, iocb->ki_pos,
-						iov_iter_count(from)) ||
+	if (ret <= 0)
+		goto out_unlock;
+
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		if (!f2fs_overwrite_io(inode, iocb->ki_pos,
+					iov_iter_count(from)) ||
 				f2fs_has_inline_data(inode) ||
 				f2fs_force_buffered_io(inode, iocb, from)) {
-				ret = -EAGAIN;
-				goto out_unlock;
-			}
-		}
-		if (iocb->ki_flags & IOCB_DIRECT) {
-			ret = f2fs_convert_inline_inode(inode);
-			if (ret)
-				goto out_unlock;
-		}
-		/* Possibly preallocate the blocks for the write. */
-		target_size = iocb->ki_pos + iov_iter_count(from);
-		preallocated = f2fs_preallocate_blocks(iocb, from);
-		if (preallocated < 0) {
-			ret = preallocated;
+			ret = -EAGAIN;
 			goto out_unlock;
 		}
+	}
 
-		ret = __generic_file_write_iter(iocb, from);
+	if (iocb->ki_flags & IOCB_DIRECT) {
+		ret = f2fs_convert_inline_inode(inode);
+		if (ret)
+			goto out_unlock;
+	}
+	/* Possibly preallocate the blocks for the write. */
+	target_size = iocb->ki_pos + iov_iter_count(from);
+	preallocated = f2fs_preallocate_blocks(iocb, from);
+	if (preallocated < 0) {
+		ret = preallocated;
+		goto out_unlock;
+	}
 
-		/* Don't leave any preallocated blocks around past i_size. */
-		if (preallocated > 0 && i_size_read(inode) < target_size) {
-			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-			down_write(&F2FS_I(inode)->i_mmap_sem);
-			f2fs_truncate(inode);
-			up_write(&F2FS_I(inode)->i_mmap_sem);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		}
-		clear_inode_flag(inode, FI_PREALLOCATED_ALL);
+	ret = __generic_file_write_iter(iocb, from);
 
-		if (ret > 0)
-			f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
+	/* Don't leave any preallocated blocks around past i_size. */
+	if (preallocated > 0 && i_size_read(inode) < target_size) {
+		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_truncate(inode);
+		up_write(&F2FS_I(inode)->i_mmap_sem);
+		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	}
+
+	clear_inode_flag(inode, FI_PREALLOCATED_ALL);
+
+	if (ret > 0)
+		f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
+
 out_unlock:
 	inode_unlock(inode);
 out:
-- 
GitLab


From f392024c40fdcb9f71046a5985995526757136aa Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 12 Nov 2021 14:31:16 -0800
Subject: [PATCH 1874/4878] f2fs: do not expose unwritten blocks to user by DIO

DIO preallocates physical blocks before writing data, but if an error occurrs
or power-cut happens, we can see block contents from the disk. This patch tries
to fix it by 1) turning to buffered writes for DIO into holes, 2) truncating
unwritten blocks from error or power-cut.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c  |  5 ++++-
 fs/f2fs/f2fs.h  |  5 +++++
 fs/f2fs/file.c  | 27 ++++++++++++++++++---------
 fs/f2fs/inode.c |  8 ++++++++
 4 files changed, 35 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index cf8e0044d7c08..54bf1a75ab718 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1553,8 +1553,11 @@ next_block:
 					flag != F2FS_GET_BLOCK_DIO);
 				err = __allocate_data_block(&dn,
 							map->m_seg_type);
-				if (!err)
+				if (!err) {
+					if (flag == F2FS_GET_BLOCK_PRE_DIO)
+						file_need_truncate(inode);
 					set_inode_flag(inode, FI_APPEND_WRITE);
+				}
 			}
 			if (err)
 				goto sync_out;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index dc89e0b2acc8e..6fd4f6ba0a60e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -654,6 +654,7 @@ enum {
 #define FADVISE_KEEP_SIZE_BIT	0x10
 #define FADVISE_HOT_BIT		0x20
 #define FADVISE_VERITY_BIT	0x40
+#define FADVISE_TRUNC_BIT	0x80
 
 #define FADVISE_MODIFIABLE_BITS	(FADVISE_COLD_BIT | FADVISE_HOT_BIT)
 
@@ -681,6 +682,10 @@ enum {
 #define file_is_verity(inode)	is_file(inode, FADVISE_VERITY_BIT)
 #define file_set_verity(inode)	set_file(inode, FADVISE_VERITY_BIT)
 
+#define file_should_truncate(inode)	is_file(inode, FADVISE_TRUNC_BIT)
+#define file_need_truncate(inode)	set_file(inode, FADVISE_TRUNC_BIT)
+#define file_dont_truncate(inode)	clear_file(inode, FADVISE_TRUNC_BIT)
+
 #define DEF_DIR_LEVEL		0
 
 enum {
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 738277f39a24f..49f3096920c65 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1684,6 +1684,7 @@ next_alloc:
 
 		map.m_seg_type = CURSEG_COLD_DATA_PINNED;
 		err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
+		file_dont_truncate(inode);
 
 		up_write(&sbi->pin_sem);
 
@@ -4389,6 +4390,13 @@ static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter)
 	/* If it will be an out-of-place direct write, don't bother. */
 	if (dio && f2fs_lfs_mode(sbi))
 		return 0;
+	/*
+	 * Don't preallocate holes aligned to DIO_SKIP_HOLES which turns into
+	 * buffered IO, if DIO meets any holes.
+	 */
+	if (dio && i_size_read(inode) &&
+		(F2FS_BYTES_TO_BLK(pos) < F2FS_BLK_ALIGN(i_size_read(inode))))
+		return 0;
 
 	/* No-wait I/O can't allocate blocks. */
 	if (iocb->ki_flags & IOCB_NOWAIT)
@@ -4424,8 +4432,8 @@ static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter)
 	}
 
 	ret = f2fs_map_blocks(inode, &map, 1, flag);
-	/* -ENOSPC is only a fatal error if no blocks could be allocated. */
-	if (ret < 0 && !(ret == -ENOSPC && map.m_len > 0))
+	/* -ENOSPC|-EDQUOT are fine to report the number of allocated blocks. */
+	if (ret < 0 && !((ret == -ENOSPC || ret == -EDQUOT) && map.m_len > 0))
 		return ret;
 	if (ret == 0)
 		set_inode_flag(inode, FI_PREALLOCATED_ALL);
@@ -4491,20 +4499,21 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	/* Possibly preallocate the blocks for the write. */
 	target_size = iocb->ki_pos + iov_iter_count(from);
 	preallocated = f2fs_preallocate_blocks(iocb, from);
-	if (preallocated < 0) {
+	if (preallocated < 0)
 		ret = preallocated;
-		goto out_unlock;
-	}
-
-	ret = __generic_file_write_iter(iocb, from);
+	else
+		ret = __generic_file_write_iter(iocb, from);
 
 	/* Don't leave any preallocated blocks around past i_size. */
-	if (preallocated > 0 && i_size_read(inode) < target_size) {
+	if (preallocated && i_size_read(inode) < target_size) {
 		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		down_write(&F2FS_I(inode)->i_mmap_sem);
-		f2fs_truncate(inode);
+		if (!f2fs_truncate(inode))
+			file_dont_truncate(inode);
 		up_write(&F2FS_I(inode)->i_mmap_sem);
 		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	} else {
+		file_dont_truncate(inode);
 	}
 
 	clear_inode_flag(inode, FI_PREALLOCATED_ALL);
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 0f8b2df3e1e01..6998eb1d6bdb0 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -544,6 +544,14 @@ make_now:
 		goto bad_inode;
 	}
 	f2fs_set_inode_flags(inode);
+
+	if (file_should_truncate(inode)) {
+		ret = f2fs_truncate(inode);
+		if (ret)
+			goto bad_inode;
+		file_dont_truncate(inode);
+	}
+
 	unlock_new_inode(inode);
 	trace_f2fs_iget(inode);
 	return inode;
-- 
GitLab


From 8540047b793b756bbeba13eb6e48a7cd0bf4ab9f Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 16 Jul 2021 09:39:15 -0500
Subject: [PATCH 1875/4878] f2fs: fix the f2fs_file_write_iter tracepoint

Pass in the original position and count rather than the position and
count that were updated by the write.  Also use the correct types for
all arguments, in particular the file offset which was being truncated
to 32 bits on 32-bit platforms.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c              |  5 +++--
 include/trace/events/f2fs.h | 12 ++++++------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 49f3096920c65..c9bf006d01adb 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4444,6 +4444,8 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file_inode(file);
+	const loff_t orig_pos = iocb->ki_pos;
+	const size_t orig_count = iov_iter_count(from);
 	loff_t target_size;
 	int preallocated;
 	ssize_t ret;
@@ -4524,8 +4526,7 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 out_unlock:
 	inode_unlock(inode);
 out:
-	trace_f2fs_file_write_iter(inode, iocb->ki_pos,
-					iov_iter_count(from), ret);
+	trace_f2fs_file_write_iter(inode, orig_pos, orig_count, ret);
 	if (ret > 0)
 		ret = generic_write_sync(iocb, ret);
 	return ret;
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index f8cb916f35958..dcb94d740e122 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -540,17 +540,17 @@ TRACE_EVENT(f2fs_truncate_partial_nodes,
 
 TRACE_EVENT(f2fs_file_write_iter,
 
-	TP_PROTO(struct inode *inode, unsigned long offset,
-		unsigned long length, int ret),
+	TP_PROTO(struct inode *inode, loff_t offset, size_t length,
+		 ssize_t ret),
 
 	TP_ARGS(inode, offset, length, ret),
 
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(unsigned long, offset)
-		__field(unsigned long, length)
-		__field(int,	ret)
+		__field(loff_t, offset)
+		__field(size_t, length)
+		__field(ssize_t, ret)
 	),
 
 	TP_fast_assign(
@@ -562,7 +562,7 @@ TRACE_EVENT(f2fs_file_write_iter,
 	),
 
 	TP_printk("dev = (%d,%d), ino = %lu, "
-		"offset = %lu, length = %lu, written(err) = %d",
+		"offset = %lld, length = %zu, written(err) = %zd",
 		show_dev_ino(__entry),
 		__entry->offset,
 		__entry->length,
-- 
GitLab


From 16b786ba62c3d72cdfe97866bfa194c110a5ef13 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 23 Jul 2021 00:59:20 -0700
Subject: [PATCH 1876/4878] f2fs: implement iomap operations

Implement 'struct iomap_ops' for f2fs, in preparation for making f2fs
use iomap for direct I/O.

Note that this may be used for other things besides direct I/O in the
future; however, for now I've only tested it for direct I/O.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/Kconfig |  1 +
 fs/f2fs/data.c  | 56 +++++++++++++++++++++++++++++++++++++++++++++++++
 fs/f2fs/f2fs.h  |  1 +
 3 files changed, 58 insertions(+)

diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 7eea3cfd894d1..f46a7339d6cf7 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -7,6 +7,7 @@ config F2FS_FS
 	select CRYPTO_CRC32
 	select F2FS_FS_XATTR if FS_ENCRYPTION
 	select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
+	select FS_IOMAP
 	select LZ4_COMPRESS if F2FS_FS_LZ4
 	select LZ4_DECOMPRESS if F2FS_FS_LZ4
 	select LZ4HC_COMPRESS if F2FS_FS_LZ4HC
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 54bf1a75ab718..03109644c4db8 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -21,6 +21,7 @@
 #include <linux/cleancache.h>
 #include <linux/sched/signal.h>
 #include <linux/fiemap.h>
+#include <linux/iomap.h>
 
 #include "f2fs.h"
 #include "node.h"
@@ -4247,3 +4248,58 @@ void f2fs_destroy_bio_entry_cache(void)
 {
 	kmem_cache_destroy(bio_entry_slab);
 }
+
+static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
+			    unsigned int flags, struct iomap *iomap,
+			    struct iomap *srcmap)
+{
+	struct f2fs_map_blocks map = {};
+	pgoff_t next_pgofs = 0;
+	int err;
+
+	map.m_lblk = bytes_to_blks(inode, offset);
+	map.m_len = bytes_to_blks(inode, offset + length - 1) - map.m_lblk + 1;
+	map.m_next_pgofs = &next_pgofs;
+	map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
+	if (flags & IOMAP_WRITE)
+		map.m_may_create = true;
+
+	err = f2fs_map_blocks(inode, &map, flags & IOMAP_WRITE,
+			      F2FS_GET_BLOCK_DIO);
+	if (err)
+		return err;
+
+	iomap->offset = blks_to_bytes(inode, map.m_lblk);
+
+	if (map.m_flags & (F2FS_MAP_MAPPED | F2FS_MAP_UNWRITTEN)) {
+		iomap->length = blks_to_bytes(inode, map.m_len);
+		if (map.m_flags & F2FS_MAP_MAPPED) {
+			iomap->type = IOMAP_MAPPED;
+			iomap->flags |= IOMAP_F_MERGED;
+		} else {
+			iomap->type = IOMAP_UNWRITTEN;
+		}
+		if (WARN_ON_ONCE(!__is_valid_data_blkaddr(map.m_pblk)))
+			return -EINVAL;
+
+		iomap->bdev = map.m_bdev;
+		iomap->addr = blks_to_bytes(inode, map.m_pblk);
+	} else {
+		iomap->length = blks_to_bytes(inode, next_pgofs) -
+				iomap->offset;
+		iomap->type = IOMAP_HOLE;
+		iomap->addr = IOMAP_NULL_ADDR;
+	}
+
+	if (map.m_flags & F2FS_MAP_NEW)
+		iomap->flags |= IOMAP_F_NEW;
+	if ((inode->i_state & I_DIRTY_DATASYNC) ||
+	    offset + length > i_size_read(inode))
+		iomap->flags |= IOMAP_F_DIRTY;
+
+	return 0;
+}
+
+const struct iomap_ops f2fs_iomap_ops = {
+	.iomap_begin	= f2fs_iomap_begin,
+};
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 6fd4f6ba0a60e..f3b1fee1f66b2 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3652,6 +3652,7 @@ int f2fs_init_post_read_processing(void);
 void f2fs_destroy_post_read_processing(void);
 int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
 void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
+extern const struct iomap_ops f2fs_iomap_ops;
 
 /*
  * gc.c
-- 
GitLab


From 35cfa559172863acaa11146ac98b4812e8fec0bd Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 29 Nov 2021 10:36:12 -0800
Subject: [PATCH 1877/4878] FROMGIT: f2fs: show number of pending discard
 commands

This information can be used to check how much time we need to give to issue
all the discard commands.

Bug: 206863097
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit fc4ae5492ca4afd7a8a9d261f4908b09f221d314
 git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev)
Change-Id: Ibd2f1d6c171f584ec9ca3817d9ea561db98f4693
---
 Documentation/ABI/testing/sysfs-fs-f2fs |  5 +++++
 fs/f2fs/sysfs.c                         | 11 +++++++++++
 2 files changed, 16 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index b8e6112d19c92..f20c03eaa7c19 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -112,6 +112,11 @@ Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
 Description:	Set timeout to issue discard commands during umount.
 	        Default: 5 secs
 
+What:		/sys/fs/f2fs/<disk>/pending_discard
+Date:		November 2021
+Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:	Shows the number of pending discard commands in the queue.
+
 What:		/sys/fs/f2fs/<disk>/max_victim_search
 Date:		January 2014
 Contact:	"Jaegeuk Kim" <jaegeuk.kim@samsung.com>
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index f64ecc30f4640..375188444cf6a 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -118,6 +118,15 @@ static ssize_t sb_status_show(struct f2fs_attr *a,
 	return sprintf(buf, "%lx\n", sbi->s_flag);
 }
 
+static ssize_t pending_discard_show(struct f2fs_attr *a,
+		struct f2fs_sb_info *sbi, char *buf)
+{
+	if (!SM_I(sbi)->dcc_info)
+		return -EINVAL;
+	return sprintf(buf, "%llu\n", (unsigned long long)atomic_read(
+				&SM_I(sbi)->dcc_info->discard_cmd_cnt));
+}
+
 static ssize_t features_show(struct f2fs_attr *a,
 		struct f2fs_sb_info *sbi, char *buf)
 {
@@ -744,6 +753,7 @@ F2FS_GENERAL_RO_ATTR(unusable);
 F2FS_GENERAL_RO_ATTR(encoding);
 F2FS_GENERAL_RO_ATTR(mounted_time_sec);
 F2FS_GENERAL_RO_ATTR(main_blkaddr);
+F2FS_GENERAL_RO_ATTR(pending_discard);
 #ifdef CONFIG_F2FS_STAT_FS
 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
@@ -812,6 +822,7 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(main_blkaddr),
 	ATTR_LIST(max_small_discards),
 	ATTR_LIST(discard_granularity),
+	ATTR_LIST(pending_discard),
 	ATTR_LIST(batched_trim_sections),
 	ATTR_LIST(ipu_policy),
 	ATTR_LIST(min_ipu_util),
-- 
GitLab


From f398bdcb077f0f5363b6ccdbf878b85e485f1fe1 Mon Sep 17 00:00:00 2001
From: Alex Hong <rurumihong@google.com>
Date: Fri, 3 Dec 2021 23:02:31 +0800
Subject: [PATCH 1878/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 199698959
Signed-off-by: Alex Hong <rurumihong@google.com>
Change-Id: I68b786d210bb5303bf462d3798510d4789212be8
---
 android/abi_gki_aarch64_generic | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 8c7892fd82415..e9bc2489fe61f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -978,6 +978,7 @@
   init_timer_key
   init_wait_entry
   __init_waitqueue_head
+  input_alloc_absinfo
   input_allocate_device
   input_close_device
   input_event
@@ -2066,6 +2067,7 @@
   __traceiter_android_rvh_typec_tcpci_chk_contaminant
   __traceiter_android_rvh_typec_tcpci_get_vbus
   __traceiter_android_rvh_uclamp_eff_get
+  __traceiter_android_rvh_uclamp_rq_util_with
   __traceiter_android_rvh_ufs_complete_init
   __traceiter_android_rvh_ufs_reprogram_all_keys
   __traceiter_android_rvh_util_est_update
@@ -2151,6 +2153,7 @@
   __tracepoint_android_rvh_typec_tcpci_chk_contaminant
   __tracepoint_android_rvh_typec_tcpci_get_vbus
   __tracepoint_android_rvh_uclamp_eff_get
+  __tracepoint_android_rvh_uclamp_rq_util_with
   __tracepoint_android_rvh_ufs_complete_init
   __tracepoint_android_rvh_ufs_reprogram_all_keys
   __tracepoint_android_rvh_util_est_update
-- 
GitLab


From 8a8500235e3fd44818723ae1b169528ed565166f Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 6 Dec 2021 17:02:46 +0000
Subject: [PATCH 1879/4878] Revert "ANDROID: KVM: arm64: Unmap S2MPU MMIO
 regions in MPT"

Unmapping S2MPU MMIO regions from MPTs is causing issues on oriole/raven
because it forces a 4K mapping in the first physical GB region instead
of 1G. During suspend AOC/APM can issue traffic through the S2MPUs and
the page lookup transaction fails because the MIF is powered off.

Revert the patch until the problem is fixed by AOC/APM device drivers.

This reverts commit 533c59945d4c6562e3646afde92ecf6b648521a9.

Test: unplug device, wait until it suspends, observe no crash
Bug: 190463801
Bug: 209399107
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I9a84ccf4ace459dc35918fc31d86933bc5b923f7
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index a1286e1b3bc20..4d6e6a0ff94cc 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -14,7 +14,6 @@
 #include <linux/arm-smccc.h>
 
 #include <nvhe/memory.h>
-#include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
 #include <nvhe/spinlock.h>
 #include <nvhe/trap_handler.h>
@@ -453,11 +452,6 @@ static int s2mpu_init(void)
 	 */
 	for_each_powered_s2mpu(dev)
 		initialize_with_mpt(dev, &kvm_hyp_host_mpt);
-
-	/* Prevent DMA to the S2MPU MMIO regions. */
-	for_each_s2mpu(dev)
-		s2mpu_host_stage2_set_owner(dev->pa, S2MPU_MMIO_SIZE, pkvm_hyp_id);
-
 	return 0;
 }
 
-- 
GitLab


From d1b287610486b1f9c3c08ac9071e4e164144f50b Mon Sep 17 00:00:00 2001
From: Donnie Pollitz <donpollitz@google.com>
Date: Fri, 3 Dec 2021 15:06:27 +0100
Subject: [PATCH 1880/4878] ANDROID: GKI: Add symbols abi for USB IP kernel
 modules.

Bug: 207100354
Test: Manually, Emulator boots up.

Signed-off-by: Donnie Pollitz <donpollitz@google.com>
Change-Id: If60fdd76bf70f956d8e9c534924c5c796e75d0b4
---
 android/abi_gki_aarch64_virtual_device | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 23bc1cbf281b0..5607beb5d87b1 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -868,6 +868,10 @@
   compat_ptr_ioctl
   fput
 
+# required by usbip-core.ko
+  iov_iter_kvec
+  sock_recvmsg
+
 # required by vcan.ko
   sock_efree
 
@@ -887,6 +891,14 @@
   devm_gpiochip_add_data_with_key
   devm_mfd_add_devices
 
+# required by vhci-hcd.ko
+  kernel_sock_shutdown
+  platform_bus
+  sockfd_lookup
+  usb_create_shared_hcd
+  usb_get_dev
+  usb_put_dev
+
 # required by virt_wifi.ko
   cfg80211_connect_done
   cfg80211_disconnected
-- 
GitLab


From 64999249d5fecc79805fd799bdf71bc5b554efc1 Mon Sep 17 00:00:00 2001
From: Jeson Gao <jeson.gao@unisoc.com>
Date: Mon, 6 Dec 2021 19:06:48 +0800
Subject: [PATCH 1881/4878] ANDROID: thermal: Add hook to enable/disable
 thermal power throttle

By default, thermal power throttle is always enable, but sometimes it
need to be disabled for a period of time, so add it to meet platform
thermal requirement.

Bug: 209386157

Signed-off-by: Jeson Gao <jeson.gao@unisoc.com>
Change-Id: If9c53a9669eec8e2821d837cfa3c660a9cfbf934
---
 drivers/android/vendor_hooks.c        |  1 +
 drivers/thermal/gov_power_allocator.c | 11 ++++++++---
 include/trace/hooks/thermal.h         |  4 ++++
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index bb2f17f9a32fe..3714a17963d96 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -377,3 +377,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sound_usb_support_cpu_suspend);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_snd_compr_use_pause_in_drain);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_request_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_target_freq);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_power_throttle);
diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index ab0be26f08169..fee3a301e9027 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -14,6 +14,8 @@
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/thermal_power_allocator.h>
+#undef CREATE_TRACE_POINTS
+#include <trace/hooks/thermal.h>
 
 #include "thermal_core.h"
 
@@ -607,6 +609,7 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
 	int ret;
 	int switch_on_temp, control_temp;
 	struct power_allocator_params *params = tz->governor_data;
+	int enable = 1;
 
 	/*
 	 * We get called for every trip point but we only need to do
@@ -615,9 +618,11 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
 	if (trip != params->trip_max_desired_temperature)
 		return 0;
 
-	ret = tz->ops->get_trip_temp(tz, params->trip_switch_on,
-				     &switch_on_temp);
-	if (!ret && (tz->temperature < switch_on_temp)) {
+	trace_android_vh_enable_thermal_power_throttle(&enable);
+	if (enable)
+		ret = tz->ops->get_trip_temp(tz, params->trip_switch_on,
+					     &switch_on_temp);
+	if (!enable || (!ret && (tz->temperature < switch_on_temp))) {
 		tz->passive = 0;
 		reset_pid_controller(params);
 		allow_maximum_power(tz);
diff --git a/include/trace/hooks/thermal.h b/include/trace/hooks/thermal.h
index 97be2675f3b86..3de589459b36b 100644
--- a/include/trace/hooks/thermal.h
+++ b/include/trace/hooks/thermal.h
@@ -27,6 +27,10 @@ DECLARE_HOOK(android_vh_modify_thermal_target_freq,
 	TP_PROTO(struct cpufreq_policy *policy, unsigned int *target_freq),
 	TP_ARGS(policy, target_freq));
 
+DECLARE_HOOK(android_vh_enable_thermal_power_throttle,
+	TP_PROTO(int *enable),
+	TP_ARGS(enable));
+
 #endif /* _TRACE_HOOK_THERMAL_H */
 /* This part must be outside protection */
 #include <trace/define_trace.h>
-- 
GitLab


From 60ae63ef194aac3a11619e83dfbfcf11c78bd271 Mon Sep 17 00:00:00 2001
From: Benjamin Coddington <bcodding@redhat.com>
Date: Tue, 16 Nov 2021 10:48:13 -0500
Subject: [PATCH 1882/4878] NFSv42: Fix pagecache invalidation after COPY/CLONE

commit 3f015d89a47cd8855cd92f71fff770095bd885a1 upstream.

The mechanism in use to allow the client to see the results of COPY/CLONE
is to drop those pages from the pagecache.  This forces the client to read
those pages once more from the server.  However, truncate_pagecache_range()
zeros out partial pages instead of dropping them.  Let us instead use
invalidate_inode_pages2_range() with full-page offsets to ensure the client
properly sees the results of COPY/CLONE operations.

Cc: <stable@vger.kernel.org> # v4.7+
Fixes: 2e72448b07dc ("NFS: Add COPY nfs operation")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/nfs42proc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 4ebcd9dd15352..2587b1b8e2ef7 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -362,8 +362,9 @@ static ssize_t _nfs42_proc_copy(struct file *src,
 			goto out;
 	}
 
-	truncate_pagecache_range(dst_inode, pos_dst,
-				 pos_dst + res->write_res.count);
+	WARN_ON_ONCE(invalidate_inode_pages2_range(dst_inode->i_mapping,
+					pos_dst >> PAGE_SHIFT,
+					(pos_dst + res->write_res.count - 1) >> PAGE_SHIFT));
 	spin_lock(&dst_inode->i_lock);
 	NFS_I(dst_inode)->cache_validity |= (NFS_INO_REVAL_PAGECACHE |
 			NFS_INO_REVAL_FORCED | NFS_INO_INVALID_SIZE |
-- 
GitLab


From 7774dd934a659a714e76b68b271713997c57776d Mon Sep 17 00:00:00 2001
From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Thu, 28 Oct 2021 22:38:27 +0800
Subject: [PATCH 1883/4878] can: j1939: j1939_tp_cmd_recv(): check the dst
 address of TP.CM_BAM

commit 164051a6ab5445bd97f719f50b16db8b32174269 upstream.

The TP.CM_BAM message must be sent to the global address [1], so add a
check to drop TP.CM_BAM sent to a non-global address.

Without this patch, the receiver will treat the following packets as
normal RTS/CTS transport:
18EC0102#20090002FF002301
18EB0102#0100000000000000
18EB0102#020000FFFFFFFFFF

[1] SAE-J1939-82 2015 A.3.3 Row 1.

Fixes: 9d71dd0c7009 ("can: add support of SAE J1939 protocol")
Link: https://lore.kernel.org/all/1635431907-15617-4-git-send-email-zhangchangzhong@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/j1939/transport.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index fe35fdad35c9b..9c39b0f5d6e07 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -2004,6 +2004,12 @@ static void j1939_tp_cmd_recv(struct j1939_priv *priv, struct sk_buff *skb)
 		extd = J1939_ETP;
 		fallthrough;
 	case J1939_TP_CMD_BAM:
+		if (cmd == J1939_TP_CMD_BAM && !j1939_cb_is_broadcast(skcb)) {
+			netdev_err_once(priv->ndev, "%s: BAM to unicast (%02x), ignoring!\n",
+					__func__, skcb->addr.sa);
+			return;
+		}
+		fallthrough;
 	case J1939_TP_CMD_RTS: /* fall through */
 		if (skcb->addr.type != extd)
 			return;
-- 
GitLab


From dca4f9a581967a81cf4420bdd26162112d546031 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Mon, 14 Dec 2020 15:26:14 +0100
Subject: [PATCH 1884/4878] ovl: simplify file splice

commit 82a763e61e2b601309d696d4fa514c77d64ee1be upstream.

generic_file_splice_read() and iter_file_splice_write() will call back into
f_op->iter_read() and f_op->iter_write() respectively.  These already do
the real file lookup and cred override.  So the code in ovl_splice_read()
and ovl_splice_write() is redundant.

In addition the ovl_file_accessed() call in ovl_splice_write() is
incorrect, though probably harmless.

Fix by calling generic_file_splice_read() and iter_file_splice_write()
directly.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Stan Hu <stanhu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/file.c | 46 ++-------------------------------------------
 1 file changed, 2 insertions(+), 44 deletions(-)

diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index d1ae643a999a5..c2f574a472a93 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -422,48 +422,6 @@ out_unlock:
 	return ret;
 }
 
-static ssize_t ovl_splice_read(struct file *in, loff_t *ppos,
-			 struct pipe_inode_info *pipe, size_t len,
-			 unsigned int flags)
-{
-	ssize_t ret;
-	struct fd real;
-	const struct cred *old_cred;
-
-	ret = ovl_real_fdget(in, &real);
-	if (ret)
-		return ret;
-
-	old_cred = ovl_override_creds(file_inode(in)->i_sb);
-	ret = generic_file_splice_read(real.file, ppos, pipe, len, flags);
-	revert_creds(old_cred);
-
-	ovl_file_accessed(in);
-	fdput(real);
-	return ret;
-}
-
-static ssize_t
-ovl_splice_write(struct pipe_inode_info *pipe, struct file *out,
-			  loff_t *ppos, size_t len, unsigned int flags)
-{
-	struct fd real;
-	const struct cred *old_cred;
-	ssize_t ret;
-
-	ret = ovl_real_fdget(out, &real);
-	if (ret)
-		return ret;
-
-	old_cred = ovl_override_creds(file_inode(out)->i_sb);
-	ret = iter_file_splice_write(pipe, real.file, ppos, len, flags);
-	revert_creds(old_cred);
-
-	ovl_file_accessed(out);
-	fdput(real);
-	return ret;
-}
-
 static int ovl_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct fd real;
@@ -772,8 +730,8 @@ const struct file_operations ovl_file_operations = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= ovl_compat_ioctl,
 #endif
-	.splice_read    = ovl_splice_read,
-	.splice_write   = ovl_splice_write,
+	.splice_read    = generic_file_splice_read,
+	.splice_write   = iter_file_splice_write,
 
 	.copy_file_range	= ovl_copy_file_range,
 	.remap_file_range	= ovl_remap_file_range,
-- 
GitLab


From bcce010f92308368ac27248342e6ccd058e8c596 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Wed, 28 Jul 2021 10:38:43 +0200
Subject: [PATCH 1885/4878] ovl: fix deadlock in splice write

commit 9b91b6b019fda817eb52f728eb9c79b3579760bc upstream.

There's possibility of an ABBA deadlock in case of a splice write to an
overlayfs file and a concurrent splice write to a corresponding real file.

The call chain for splice to an overlay file:

 -> do_splice                     [takes sb_writers on overlay file]
   -> do_splice_from
     -> iter_file_splice_write    [takes pipe->mutex]
       -> vfs_iter_write
         ...
         -> ovl_write_iter        [takes sb_writers on real file]

And the call chain for splice to a real file:

 -> do_splice                     [takes sb_writers on real file]
   -> do_splice_from
     -> iter_file_splice_write    [takes pipe->mutex]

Syzbot successfully bisected this to commit 82a763e61e2b ("ovl: simplify
file splice").

Fix by reverting the write part of the above commit and by adding missing
bits from ovl_write_iter() into ovl_splice_write().

Fixes: 82a763e61e2b ("ovl: simplify file splice")
Reported-and-tested-by: syzbot+579885d1a9a833336209@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Stan Hu <stanhu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/file.c | 47 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index c2f574a472a93..b019f27c13601 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -422,6 +422,51 @@ out_unlock:
 	return ret;
 }
 
+/*
+ * Calling iter_file_splice_write() directly from overlay's f_op may deadlock
+ * due to lock order inversion between pipe->mutex in iter_file_splice_write()
+ * and file_start_write(real.file) in ovl_write_iter().
+ *
+ * So do everything ovl_write_iter() does and call iter_file_splice_write() on
+ * the real file.
+ */
+static ssize_t ovl_splice_write(struct pipe_inode_info *pipe, struct file *out,
+				loff_t *ppos, size_t len, unsigned int flags)
+{
+	struct fd real;
+	const struct cred *old_cred;
+	struct inode *inode = file_inode(out);
+	struct inode *realinode = ovl_inode_real(inode);
+	ssize_t ret;
+
+	inode_lock(inode);
+	/* Update mode */
+	ovl_copyattr(realinode, inode);
+	ret = file_remove_privs(out);
+	if (ret)
+		goto out_unlock;
+
+	ret = ovl_real_fdget(out, &real);
+	if (ret)
+		goto out_unlock;
+
+	old_cred = ovl_override_creds(inode->i_sb);
+	file_start_write(real.file);
+
+	ret = iter_file_splice_write(pipe, real.file, ppos, len, flags);
+
+	file_end_write(real.file);
+	/* Update size */
+	ovl_copyattr(realinode, inode);
+	revert_creds(old_cred);
+	fdput(real);
+
+out_unlock:
+	inode_unlock(inode);
+
+	return ret;
+}
+
 static int ovl_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct fd real;
@@ -731,7 +776,7 @@ const struct file_operations ovl_file_operations = {
 	.compat_ioctl	= ovl_compat_ioctl,
 #endif
 	.splice_read    = generic_file_splice_read,
-	.splice_write   = iter_file_splice_write,
+	.splice_write   = ovl_splice_write,
 
 	.copy_file_range	= ovl_copy_file_range,
 	.remap_file_range	= ovl_remap_file_range,
-- 
GitLab


From 664cceab6f705d2405a546d0c0e24d30565c0b2a Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Thu, 28 Oct 2021 11:53:10 -0500
Subject: [PATCH 1886/4878] gfs2: release iopen glock early in evict

[ Upstream commit 49462e2be119d38c5eb5759d0d1b712df3a41239 ]

Before this patch, evict would clear the iopen glock's gl_object after
releasing the inode glock.  In the meantime, another process could reuse
the same block and thus glocks for a new inode.  It would lock the inode
glock (exclusively), and then the iopen glock (shared).  The shared
locking mode doesn't provide any ordering against the evict, so by the
time the iopen glock is reused, evict may not have gotten to setting
gl_object to NULL.

Fix that by releasing the iopen glock before the inode glock in
gfs2_evict_inode.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>gl_object
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/super.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 6a355e1347d7f..d2b7ecbd1b150 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1438,13 +1438,6 @@ out:
 	gfs2_ordered_del_inode(ip);
 	clear_inode(inode);
 	gfs2_dir_hash_inval(ip);
-	if (ip->i_gl) {
-		glock_clear_object(ip->i_gl, ip);
-		wait_on_bit_io(&ip->i_flags, GIF_GLOP_PENDING, TASK_UNINTERRUPTIBLE);
-		gfs2_glock_add_to_lru(ip->i_gl);
-		gfs2_glock_put_eventually(ip->i_gl);
-		ip->i_gl = NULL;
-	}
 	if (gfs2_holder_initialized(&ip->i_iopen_gh)) {
 		struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
 
@@ -1457,6 +1450,13 @@ out:
 		gfs2_holder_uninit(&ip->i_iopen_gh);
 		gfs2_glock_put_eventually(gl);
 	}
+	if (ip->i_gl) {
+		glock_clear_object(ip->i_gl, ip);
+		wait_on_bit_io(&ip->i_flags, GIF_GLOP_PENDING, TASK_UNINTERRUPTIBLE);
+		gfs2_glock_add_to_lru(ip->i_gl);
+		gfs2_glock_put_eventually(ip->i_gl);
+		ip->i_gl = NULL;
+	}
 }
 
 static struct inode *gfs2_alloc_inode(struct super_block *sb)
-- 
GitLab


From 7b2b7e03e8eae9b8e83e6e936507ed33d5c954f1 Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Sat, 6 Nov 2021 00:18:56 +0100
Subject: [PATCH 1887/4878] gfs2: Fix length of holes reported at end-of-file

[ Upstream commit f3506eee81d1f700d9ee2d2f4a88fddb669ec032 ]

Fix the length of holes reported at the end of a file: the length is
relative to the beginning of the extent, not the seek position which is
rounded down to the filesystem block size.

This bug went unnoticed for some time, but is now caught by the
following assertion in iomap_iter_done():

  WARN_ON_ONCE(iter->iomap.offset + iter->iomap.length <= iter->pos)

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/bmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index a1f9dde33058f..b34c02985d9d2 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -940,7 +940,7 @@ do_alloc:
 		else if (height == ip->i_height)
 			ret = gfs2_hole_size(inode, lblock, len, mp, iomap);
 		else
-			iomap->length = size - pos;
+			iomap->length = size - iomap->offset;
 	} else if (flags & IOMAP_WRITE) {
 		u64 alloc_size;
 
-- 
GitLab


From 57e36973fadbe34571d41e9dae2fdde8eeccb82d Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Mon, 8 Nov 2021 15:03:17 +1100
Subject: [PATCH 1888/4878] powerpc/pseries/ddw: Revert "Extend upper limit for
 huge DMA window for persistent memory"

[ Upstream commit 2d33f5504490a9d90924476dbccd4a5349ee1ad0 ]

This reverts commit 54fc3c681ded9437e4548e2501dc1136b23cfa9a
which does not allow 1:1 mapping even for the system RAM which
is usually possible.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211108040320.3857636-2-aik@ozlabs.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/pseries/iommu.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index e4198700ed1a3..245f1f8df6563 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1034,15 +1034,6 @@ static phys_addr_t ddw_memory_hotplug_max(void)
 	phys_addr_t max_addr = memory_hotplug_max();
 	struct device_node *memory;
 
-	/*
-	 * The "ibm,pmemory" can appear anywhere in the address space.
-	 * Assuming it is still backed by page structs, set the upper limit
-	 * for the huge DMA window as MAX_PHYSMEM_BITS.
-	 */
-	if (of_find_node_by_type(NULL, "ibm,pmemory"))
-		return (sizeof(phys_addr_t) * 8 <= MAX_PHYSMEM_BITS) ?
-			(phys_addr_t) -1 : (1ULL << MAX_PHYSMEM_BITS);
-
 	for_each_node_by_type(memory, "memory") {
 		unsigned long start, size;
 		int n_mem_addr_cells, n_mem_size_cells, len;
-- 
GitLab


From c386d7aa59f5040dbcbc02499a31474859546d6d Mon Sep 17 00:00:00 2001
From: Julian Braha <julianbraha@gmail.com>
Date: Mon, 8 Nov 2021 22:23:51 -0500
Subject: [PATCH 1889/4878] drm/sun4i: fix unmet dependency on RESET_CONTROLLER
 for PHY_SUN6I_MIPI_DPHY

[ Upstream commit bb162bb2b4394108c8f055d1b115735331205e28 ]

When PHY_SUN6I_MIPI_DPHY is selected, and RESET_CONTROLLER
is not selected, Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for PHY_SUN6I_MIPI_DPHY
  Depends on [n]: (ARCH_SUNXI [=n] || COMPILE_TEST [=y]) && HAS_IOMEM [=y] && COMMON_CLK [=y] && RESET_CONTROLLER [=n]
  Selected by [y]:
  - DRM_SUN6I_DSI [=y] && HAS_IOMEM [=y] && DRM_SUN4I [=y]

This is because DRM_SUN6I_DSI selects PHY_SUN6I_MIPI_DPHY
without selecting or depending on RESET_CONTROLLER, despite
PHY_SUN6I_MIPI_DPHY depending on RESET_CONTROLLER.

These unmet dependency bugs were detected by Kismet,
a static analysis tool for Kconfig. Please advise if this
is not the appropriate solution.

v2:
Fixed indentation to match the rest of the file.

Signed-off-by: Julian Braha <julianbraha@gmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211109032351.43322-1-julianbraha@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/sun4i/Kconfig b/drivers/gpu/drm/sun4i/Kconfig
index 5755f0432e774..8c796de53222c 100644
--- a/drivers/gpu/drm/sun4i/Kconfig
+++ b/drivers/gpu/drm/sun4i/Kconfig
@@ -46,6 +46,7 @@ config DRM_SUN6I_DSI
 	default MACH_SUN8I
 	select CRC_CCITT
 	select DRM_MIPI_DSI
+	select RESET_CONTROLLER
 	select PHY_SUN6I_MIPI_DPHY
 	help
 	  Choose this option if you want have an Allwinner SoC with
-- 
GitLab


From e1a165599aadf27fad43338578c42a863c68cd91 Mon Sep 17 00:00:00 2001
From: Xing Song <xing.song@mediatek.com>
Date: Mon, 1 Nov 2021 10:46:57 +0800
Subject: [PATCH 1890/4878] mac80211: do not access the IV when it was stripped

[ Upstream commit 77dfc2bc0bb4b8376ecd7a430f27a4a8fff6a5a0 ]

ieee80211_get_keyid() will return false value if IV has been stripped,
such as return 0 for IP/ARP frames due to LLC header, and return -EINVAL
for disassociation frames due to its length... etc. Don't try to access
it if it's not present.

Signed-off-by: Xing Song <xing.song@mediatek.com>
Link: https://lore.kernel.org/r/20211101024657.143026-1-xing.song@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index b7979c0bffd0f..6a24431b90095 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1945,7 +1945,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 		int keyid = rx->sta->ptk_idx;
 		sta_ptk = rcu_dereference(rx->sta->ptk[keyid]);
 
-		if (ieee80211_has_protected(fc)) {
+		if (ieee80211_has_protected(fc) &&
+		    !(status->flag & RX_FLAG_IV_STRIPPED)) {
 			cs = rx->sta->cipher_scheme;
 			keyid = ieee80211_get_keyid(rx->skb, cs);
 
-- 
GitLab


From ff6eeb627898c179aac421af5d6515d3f50b84df Mon Sep 17 00:00:00 2001
From: Wen Gu <guwen@linux.alibaba.com>
Date: Sat, 13 Nov 2021 15:33:35 +0800
Subject: [PATCH 1891/4878] net/smc: Transfer remaining wait queue entries
 during fallback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 2153bd1e3d3dbf6a3403572084ef6ed31c53c5f0 ]

The SMC fallback is incomplete currently. There may be some
wait queue entries remaining in smc socket->wq, which should
be removed to clcsocket->wq during the fallback.

For example, in nginx/wrk benchmark, this issue causes an
all-zeros test result:

server: nginx -g 'daemon off;'
client: smc_run wrk -c 1 -t 1 -d 5 http://11.200.15.93/index.html

  Running 5s test @ http://11.200.15.93/index.html
     1 threads and 1 connections
     Thread Stats   Avg      Stdev     Max   ± Stdev
     	Latency     0.00us    0.00us   0.00us    -nan%
	Req/Sec     0.00      0.00     0.00      -nan%
	0 requests in 5.00s, 0.00B read
     Requests/sec:      0.00
     Transfer/sec:       0.00B

The reason for this all-zeros result is that when wrk used SMC
to replace TCP, it added an eppoll_entry into smc socket->wq
and expected to be notified if epoll events like EPOLL_IN/
EPOLL_OUT occurred on the smc socket.

However, once a fallback occurred, wrk switches to use clcsocket.
Now it is clcsocket->wq instead of smc socket->wq which will
be woken up. The eppoll_entry remaining in smc socket->wq does
not work anymore and wrk stops the test.

This patch fixes this issue by removing remaining wait queue
entries from smc socket->wq to clcsocket->wq during the fallback.

Link: https://www.spinics.net/lists/netdev/msg779769.html
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index ac8265e35b2d2..04bf8088872a9 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -513,12 +513,26 @@ static void smc_link_save_peer_info(struct smc_link *link,
 
 static void smc_switch_to_fallback(struct smc_sock *smc)
 {
+	wait_queue_head_t *smc_wait = sk_sleep(&smc->sk);
+	wait_queue_head_t *clc_wait = sk_sleep(smc->clcsock->sk);
+	unsigned long flags;
+
 	smc->use_fallback = true;
 	if (smc->sk.sk_socket && smc->sk.sk_socket->file) {
 		smc->clcsock->file = smc->sk.sk_socket->file;
 		smc->clcsock->file->private_data = smc->clcsock;
 		smc->clcsock->wq.fasync_list =
 			smc->sk.sk_socket->wq.fasync_list;
+
+		/* There may be some entries remaining in
+		 * smc socket->wq, which should be removed
+		 * to clcsocket->wq during the fallback.
+		 */
+		spin_lock_irqsave(&smc_wait->lock, flags);
+		spin_lock(&clc_wait->lock);
+		list_splice_init(&smc_wait->head, &clc_wait->head);
+		spin_unlock(&clc_wait->lock);
+		spin_unlock_irqrestore(&smc_wait->lock, flags);
 	}
 }
 
-- 
GitLab


From 2c514d25003ac89bb7716bb4402918ccb141f8f5 Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Sat, 13 Nov 2021 22:24:40 -0500
Subject: [PATCH 1892/4878] atlantic: Fix OOB read and write in
 hw_atl_utils_fw_rpc_wait

[ Upstream commit b922f622592af76b57cbc566eaeccda0b31a3496 ]

This bug report shows up when running our research tools. The
reports is SOOB read, but it seems SOOB write is also possible
a few lines below.

In details, fw.len and sw.len are inputs coming from io. A len
over the size of self->rpc triggers SOOB. The patch fixes the
bugs by adding sanity checks.

The bugs are triggerable with compromised/malfunctioning devices.
They are potentially exploitable given they first leak up to
0xffff bytes and able to overwrite the region later.

The patch is tested with QEMU emulater.
This is NOT tested with a real device.

Attached is the log we found by fuzzing.

BUG: KASAN: slab-out-of-bounds in
	hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic]
Read of size 4 at addr ffff888016260b08 by task modprobe/213
CPU: 0 PID: 213 Comm: modprobe Not tainted 5.6.0 #1
Call Trace:
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic]
 ? hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic]
 __kasan_report.cold+0x37/0x7c
 ? aq_hw_read_reg_bit+0x60/0x70 [atlantic]
 ? hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic]
 kasan_report+0xe/0x20
 hw_atl_utils_fw_upload_dwords+0x393/0x3c0 [atlantic]
 hw_atl_utils_fw_rpc_call+0x95/0x130 [atlantic]
 hw_atl_utils_fw_rpc_wait+0x176/0x210 [atlantic]
 hw_atl_utils_mpi_create+0x229/0x2e0 [atlantic]
 ? hw_atl_utils_fw_rpc_wait+0x210/0x210 [atlantic]
 ? hw_atl_utils_initfw+0x9f/0x1c8 [atlantic]
 hw_atl_utils_initfw+0x12a/0x1c8 [atlantic]
 aq_nic_ndev_register+0x88/0x650 [atlantic]
 ? aq_nic_ndev_init+0x235/0x3c0 [atlantic]
 aq_pci_probe+0x731/0x9b0 [atlantic]
 ? aq_pci_func_init+0xc0/0xc0 [atlantic]
 local_pci_probe+0xd3/0x160
 pci_device_probe+0x23f/0x3e0

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
index 404cbf60d3f2f..da1d185f6d226 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
@@ -559,6 +559,11 @@ int hw_atl_utils_fw_rpc_wait(struct aq_hw_s *self,
 			goto err_exit;
 
 		if (fw.len == 0xFFFFU) {
+			if (sw.len > sizeof(self->rpc)) {
+				printk(KERN_INFO "Invalid sw len: %x\n", sw.len);
+				err = -EINVAL;
+				goto err_exit;
+			}
 			err = hw_atl_utils_fw_rpc_call(self, sw.len);
 			if (err < 0)
 				goto err_exit;
@@ -567,6 +572,11 @@ int hw_atl_utils_fw_rpc_wait(struct aq_hw_s *self,
 
 	if (rpc) {
 		if (fw.len) {
+			if (fw.len > sizeof(self->rpc)) {
+				printk(KERN_INFO "Invalid fw len: %x\n", fw.len);
+				err = -EINVAL;
+				goto err_exit;
+			}
 			err =
 			hw_atl_utils_fw_downld_dwords(self,
 						      self->rpc_addr,
-- 
GitLab


From 3fc88660ede60a5f6a7a8bf48efe6f5bfaae6cb1 Mon Sep 17 00:00:00 2001
From: liuguoqiang <liuguoqiang@uniontech.com>
Date: Mon, 15 Nov 2021 16:14:48 +0800
Subject: [PATCH 1893/4878] net: return correct error code

[ Upstream commit 6def480181f15f6d9ec812bca8cbc62451ba314c ]

When kmemdup called failed and register_net_sysctl return NULL, should
return ENOMEM instead of ENOBUFS

Signed-off-by: liuguoqiang <liuguoqiang@uniontech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/devinet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 7c18597774297..148ef484a66ce 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -2582,7 +2582,7 @@ static int __devinet_sysctl_register(struct net *net, char *dev_name,
 free:
 	kfree(t);
 out:
-	return -ENOBUFS;
+	return -ENOMEM;
 }
 
 static void __devinet_sysctl_unregister(struct net *net,
-- 
GitLab


From 226b21ad01ae5ef6428feb0c6b31937000564c6c Mon Sep 17 00:00:00 2001
From: Jimmy Wang <jimmy221b@163.com>
Date: Fri, 5 Nov 2021 17:05:28 +0800
Subject: [PATCH 1894/4878] platform/x86: thinkpad_acpi: Add support for dual
 fan control

[ Upstream commit 1f338954a5fbe21eb22b4223141e31f2a26366d5 ]

   This adds dual fan control for P1 / X1 Extreme Gen4

Signed-off-by: Jimmy Wang <jimmy221b@163.com>
Link: https://lore.kernel.org/r/20211105090528.39677-1-jimmy221b@163.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/thinkpad_acpi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 2a313643e0388..840bbc312aedd 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -8805,6 +8805,7 @@ static const struct tpacpi_quirk fan_quirk_table[] __initconst = {
 	TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (1st gen) */
 	TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (2nd gen) */
 	TPACPI_Q_LNV3('N', '2', 'V', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (3nd gen) */
+	TPACPI_Q_LNV3('N', '4', '0', TPACPI_FAN_2CTL),	/* P1 / X1 Extreme (4nd gen) */
 	TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL),	/* P15 (1st gen) / P15v (1st gen) */
 	TPACPI_Q_LNV3('N', '3', '2', TPACPI_FAN_2CTL),	/* X1 Carbon (9th gen) */
 };
-- 
GitLab


From fd1e70ef65ee5ad52f86dd689a498192caddf79e Mon Sep 17 00:00:00 2001
From: Slark Xiao <slark_xiao@163.com>
Date: Mon, 8 Nov 2021 14:06:48 +0800
Subject: [PATCH 1895/4878] platform/x86: thinkpad_acpi: Fix WWAN device
 disabled issue after S3 deep

[ Upstream commit 39f53292181081d35174a581a98441de5da22bc9 ]

When WWAN device wake from S3 deep, under thinkpad platform,
WWAN would be disabled. This disable status could be checked
by command 'nmcli r wwan' or 'rfkill list'.

Issue analysis as below:
  When host resume from S3 deep, thinkpad_acpi driver would
call hotkey_resume() function. Finnaly, it will use
wan_get_status to check the current status of WWAN device.
During this resume progress, wan_get_status would always
return off even WWAN boot up completely.
  In patch V2, Hans said 'sw_state should be unchanged
after a suspend/resume. It's better to drop the
tpacpi_rfk_update_swstate call all together from the
resume path'.
  And it's confimed by Lenovo that GWAN is no longer
 available from WHL generation because the design does not
 match with current pin control.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Link: https://lore.kernel.org/r/20211108060648.8212-1-slark_xiao@163.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/thinkpad_acpi.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 840bbc312aedd..d8d241344d22d 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -1170,15 +1170,6 @@ static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk)
 	return status;
 }
 
-/* Query FW and update rfkill sw state for all rfkill switches */
-static void tpacpi_rfk_update_swstate_all(void)
-{
-	unsigned int i;
-
-	for (i = 0; i < TPACPI_RFK_SW_MAX; i++)
-		tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]);
-}
-
 /*
  * Sync the HW-blocking state of all rfkill switches,
  * do notice it causes the rfkill core to schedule uevents
@@ -3121,9 +3112,6 @@ static void tpacpi_send_radiosw_update(void)
 	if (wlsw == TPACPI_RFK_RADIO_OFF)
 		tpacpi_rfk_update_hwblock_state(true);
 
-	/* Sync sw blocking state */
-	tpacpi_rfk_update_swstate_all();
-
 	/* Sync hw blocking state last if it is hw-unblocked */
 	if (wlsw == TPACPI_RFK_RADIO_ON)
 		tpacpi_rfk_update_hwblock_state(false);
-- 
GitLab


From 03957229053119e3359e866a5ccb0df0bfe0195e Mon Sep 17 00:00:00 2001
From: Vasily Gorbik <gor@linux.ibm.com>
Date: Thu, 14 Oct 2021 13:38:17 +0200
Subject: [PATCH 1896/4878] s390/setup: avoid using
 memblock_enforce_memory_limit

[ Upstream commit 5dbc4cb4667457b0c53bcd7bff11500b3c362975 ]

There is a difference in how architectures treat "mem=" option. For some
that is an amount of online memory, for s390 and x86 this is the limiting
max address. Some memblock api like memblock_enforce_memory_limit()
take limit argument and explicitly treat it as the size of online memory,
and use __find_max_addr to convert it to an actual max address. Current
s390 usage:

memblock_enforce_memory_limit(memblock_end_of_DRAM());

yields different results depending on presence of memory holes (offline
memory blocks in between online memory). If there are no memory holes
limit == max_addr in memblock_enforce_memory_limit() and it does trim
online memory and reserved memory regions. With memory holes present it
actually does nothing.

Since we already use memblock_remove() explicitly to trim online memory
regions to potential limit (think mem=, kdump, addressing limits, etc.)
drop the usage of memblock_enforce_memory_limit() altogether. Trimming
reserved regions should not be required, since we now use
memblock_set_current_limit() to limit allocations and any explicit memory
reservations above the limit is an actual problem we should not hide.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kernel/setup.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 5cd9d20af31e9..f9f8721dc5321 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -845,9 +845,6 @@ static void __init setup_memory(void)
 		storage_key_init_range(start, end);
 
 	psw_set_key(PAGE_DEFAULT_KEY);
-
-	/* Only cosmetics */
-	memblock_enforce_memory_limit(memblock_end_of_DRAM());
 }
 
 /*
-- 
GitLab


From 8e4d2ac4348a55d6ac9a3bc8a5bc044c7bca6d71 Mon Sep 17 00:00:00 2001
From: Wang Yugui <wangyugui@e16-tech.com>
Date: Thu, 28 Oct 2021 06:32:54 +0800
Subject: [PATCH 1897/4878] btrfs: check-integrity: fix a warning on write
 caching disabled disk

[ Upstream commit a91cf0ffbc244792e0b3ecf7d0fddb2f344b461f ]

When a disk has write caching disabled, we skip submission of a bio with
flush and sync requests before writing the superblock, since it's not
needed. However when the integrity checker is enabled, this results in
reports that there are metadata blocks referred by a superblock that
were not properly flushed. So don't skip the bio submission only when
the integrity checker is enabled for the sake of simplicity, since this
is a debug tool and not meant for use in non-debug builds.

fstests/btrfs/220 trigger a check-integrity warning like the following
when CONFIG_BTRFS_FS_CHECK_INTEGRITY=y and the disk with WCE=0.

  btrfs: attempt to write superblock which references block M @5242880 (sdb2/5242880/0) which is not flushed out of disk's write cache (block flush_gen=1, dev->flush_gen=0)!
  ------------[ cut here ]------------
  WARNING: CPU: 28 PID: 843680 at fs/btrfs/check-integrity.c:2196 btrfsic_process_written_superblock+0x22a/0x2a0 [btrfs]
  CPU: 28 PID: 843680 Comm: umount Not tainted 5.15.0-0.rc5.39.el8.x86_64 #1
  Hardware name: Dell Inc. Precision T7610/0NK70N, BIOS A18 09/11/2019
  RIP: 0010:btrfsic_process_written_superblock+0x22a/0x2a0 [btrfs]
  RSP: 0018:ffffb642afb47940 EFLAGS: 00010246
  RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
  RDX: 00000000ffffffff RSI: ffff8b722fc97d00 RDI: ffff8b722fc97d00
  RBP: ffff8b5601c00000 R08: 0000000000000000 R09: c0000000ffff7fff
  R10: 0000000000000001 R11: ffffb642afb476f8 R12: ffffffffffffffff
  R13: ffffb642afb47974 R14: ffff8b5499254c00 R15: 0000000000000003
  FS:  00007f00a06d4080(0000) GS:ffff8b722fc80000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007fff5cff5ff0 CR3: 00000001c0c2a006 CR4: 00000000001706e0
  Call Trace:
   btrfsic_process_written_block+0x2f7/0x850 [btrfs]
   __btrfsic_submit_bio.part.19+0x310/0x330 [btrfs]
   ? bio_associate_blkg_from_css+0xa4/0x2c0
   btrfsic_submit_bio+0x18/0x30 [btrfs]
   write_dev_supers+0x81/0x2a0 [btrfs]
   ? find_get_pages_range_tag+0x219/0x280
   ? pagevec_lookup_range_tag+0x24/0x30
   ? __filemap_fdatawait_range+0x6d/0xf0
   ? __raw_callee_save___native_queued_spin_unlock+0x11/0x1e
   ? find_first_extent_bit+0x9b/0x160 [btrfs]
   ? __raw_callee_save___native_queued_spin_unlock+0x11/0x1e
   write_all_supers+0x1b3/0xa70 [btrfs]
   ? __raw_callee_save___native_queued_spin_unlock+0x11/0x1e
   btrfs_commit_transaction+0x59d/0xac0 [btrfs]
   close_ctree+0x11d/0x339 [btrfs]
   generic_shutdown_super+0x71/0x110
   kill_anon_super+0x14/0x30
   btrfs_kill_super+0x12/0x20 [btrfs]
   deactivate_locked_super+0x31/0x70
   cleanup_mnt+0xb8/0x140
   task_work_run+0x6d/0xb0
   exit_to_user_mode_prepare+0x1f0/0x200
   syscall_exit_to_user_mode+0x12/0x30
   do_syscall_64+0x46/0x80
   entry_SYSCALL_64_after_hwframe+0x44/0xae
  RIP: 0033:0x7f009f711dfb
  RSP: 002b:00007fff5cff7928 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
  RAX: 0000000000000000 RBX: 000055b68c6c9970 RCX: 00007f009f711dfb
  RDX: 0000000000000001 RSI: 0000000000000000 RDI: 000055b68c6c9b50
  RBP: 0000000000000000 R08: 000055b68c6ca900 R09: 00007f009f795580
  R10: 0000000000000000 R11: 0000000000000246 R12: 000055b68c6c9b50
  R13: 00007f00a04bf184 R14: 0000000000000000 R15: 00000000ffffffff
  ---[ end trace 2c4b82abcef9eec4 ]---
  S-65536(sdb2/65536/1)
   -->
  M-1064960(sdb2/1064960/1)

Reviewed-by: Filipe Manana <fdmanana@gmail.com>
Signed-off-by: Wang Yugui <wangyugui@e16-tech.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/disk-io.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9051bb47cbdd9..bab2091c81683 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3692,11 +3692,23 @@ static void btrfs_end_empty_barrier(struct bio *bio)
  */
 static void write_dev_flush(struct btrfs_device *device)
 {
-	struct request_queue *q = bdev_get_queue(device->bdev);
 	struct bio *bio = device->flush_bio;
 
+#ifndef CONFIG_BTRFS_FS_CHECK_INTEGRITY
+	/*
+	 * When a disk has write caching disabled, we skip submission of a bio
+	 * with flush and sync requests before writing the superblock, since
+	 * it's not needed. However when the integrity checker is enabled, this
+	 * results in reports that there are metadata blocks referred by a
+	 * superblock that were not properly flushed. So don't skip the bio
+	 * submission only when the integrity checker is enabled for the sake
+	 * of simplicity, since this is a debug tool and not meant for use in
+	 * non-debug builds.
+	 */
+	struct request_queue *q = bdev_get_queue(device->bdev);
 	if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags))
 		return;
+#endif
 
 	bio_reset(bio);
 	bio->bi_end_io = btrfs_end_empty_barrier;
-- 
GitLab


From bc8c423a286a47195bbb7e8a57d67bef60d7419f Mon Sep 17 00:00:00 2001
From: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
Date: Wed, 3 Nov 2021 01:30:40 +0530
Subject: [PATCH 1898/4878] thermal: core: Reset previous low and high trip
 during thermal zone init

[ Upstream commit 99b63316c39988039965693f5f43d8b4ccb1c86c ]

During the suspend is in process, thermal_zone_device_update bails out
thermal zone re-evaluation for any sensor trip violation without
setting next valid trip to that sensor. It assumes during resume
it will re-evaluate same thermal zone and update trip. But when it is
in suspend temperature goes down and on resume path while updating
thermal zone if temperature is less than previously violated trip,
thermal zone set trip function evaluates the same previous high and
previous low trip as new high and low trip. Since there is no change
in high/low trip, it bails out from thermal zone set trip API without
setting any trip. It leads to a case where sensor high trip or low
trip is disabled forever even though thermal zone has a valid high
or low trip.

During thermal zone device init, reset thermal zone previous high
and low trip. It resolves above mentioned scenario.

Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@codeaurora.org>
Reviewed-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/thermal_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 17de8a9b991e9..d9e34ac376626 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -474,6 +474,8 @@ static void thermal_zone_device_init(struct thermal_zone_device *tz)
 {
 	struct thermal_instance *pos;
 	tz->temperature = THERMAL_TEMP_INVALID;
+	tz->prev_low_trip = -INT_MAX;
+	tz->prev_high_trip = INT_MAX;
 	list_for_each_entry(pos, &tz->thermal_instances, tz_node)
 		pos->initialized = false;
 }
-- 
GitLab


From f0c9f49b0cafe27a94b9885fc0088bdf28093268 Mon Sep 17 00:00:00 2001
From: Mike Christie <michael.christie@oracle.com>
Date: Fri, 5 Nov 2021 17:10:47 -0500
Subject: [PATCH 1899/4878] scsi: iscsi: Unblock session then wake up error
 handler

[ Upstream commit a0c2f8b6709a9a4af175497ca65f93804f57b248 ]

We can race where iscsi_session_recovery_timedout() has woken up the error
handler thread and it's now setting the devices to offline, and
session_recovery_timedout()'s call to scsi_target_unblock() is also trying
to set the device's state to transport-offline. We can then get a mix of
states.

For the case where we can't relogin we want the devices to be in
transport-offline so when we have repaired the connection
__iscsi_unblock_session() can set the state back to running.

Set the device state then call into libiscsi to wake up the error handler.

Link: https://lore.kernel.org/r/20211105221048.6541-2-michael.christie@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_transport_iscsi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 3f7fa8de36427..a5759d0e388a8 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1909,12 +1909,12 @@ static void session_recovery_timedout(struct work_struct *work)
 	}
 	spin_unlock_irqrestore(&session->lock, flags);
 
-	if (session->transport->session_recovery_timedout)
-		session->transport->session_recovery_timedout(session);
-
 	ISCSI_DBG_TRANS_SESSION(session, "Unblocking SCSI target\n");
 	scsi_target_unblock(&session->dev, SDEV_TRANSPORT_OFFLINE);
 	ISCSI_DBG_TRANS_SESSION(session, "Completed unblocking SCSI target\n");
+
+	if (session->transport->session_recovery_timedout)
+		session->transport->session_recovery_timedout(session);
 }
 
 static void __iscsi_unblock_session(struct work_struct *work)
-- 
GitLab


From 74aafe99efb68f15e50be9f7032c2168512f98a8 Mon Sep 17 00:00:00 2001
From: shaoyunl <shaoyun.liu@amd.com>
Date: Sun, 14 Nov 2021 12:38:18 -0500
Subject: [PATCH 1900/4878] drm/amd/amdkfd: Fix kernel panic when reset failed
 and been triggered again

[ Upstream commit 2cf49e00d40d5132e3d067b5aa6d84791929ab15 ]

In SRIOV configuration, the reset may failed to bring asic back to normal but stop cpsch
already been called, the start_cpsch will not be called since there is no resume in this
case.  When reset been triggered again, driver should avoid to do uninitialization again.

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 352a32dc609b2..2645ebc63a14d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -1207,6 +1207,11 @@ static int stop_cpsch(struct device_queue_manager *dqm)
 	bool hanging;
 
 	dqm_lock(dqm);
+	if (!dqm->sched_running) {
+		dqm_unlock(dqm);
+		return 0;
+	}
+
 	if (!dqm->is_hws_hang)
 		unmap_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 0);
 	hanging = dqm->is_hws_hang || dqm->is_resetting;
-- 
GitLab


From c746945fb6bcbe3863c9ea6369c7ef376e38e5eb Mon Sep 17 00:00:00 2001
From: Bernard Zhao <bernard@vivo.com>
Date: Sun, 14 Nov 2021 18:58:50 -0800
Subject: [PATCH 1901/4878] drm/amd/amdgpu: fix potential memleak

[ Upstream commit 27dfaedc0d321b4ea4e10c53e4679d6911ab17aa ]

In function amdgpu_get_xgmi_hive, when kobject_init_and_add failed
There is a potential memleak if not call kobject_put.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 0526dec1d736e..042c85fc528bb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -358,6 +358,7 @@ struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev)
 			"%s", "xgmi_hive_info");
 	if (ret) {
 		dev_err(adev->dev, "XGMI: failed initializing kobject for xgmi hive\n");
+		kobject_put(&hive->kobj);
 		kfree(hive);
 		hive = NULL;
 		goto pro_end;
-- 
GitLab


From 9a32d3c08d8ee2c3bf005399bbe17ca71d2536ea Mon Sep 17 00:00:00 2001
From: Mario Limonciello <mario.limonciello@amd.com>
Date: Fri, 12 Nov 2021 14:15:38 -0600
Subject: [PATCH 1902/4878] ata: ahci: Add Green Sardine vendor ID as
 board_ahci_mobile

[ Upstream commit 1527f69204fe35f341cb599f1cb01bd02daf4374 ]

AMD requires that the SATA controller be configured for devsleep in order
for S0i3 entry to work properly.

commit b1a9585cc396 ("ata: ahci: Enable DEVSLP by default on x86 with
SLP_S0") sets up a kernel policy to enable devsleep on Intel mobile
platforms that are using s0ix.  Add the PCI ID for the SATA controller in
Green Sardine platforms to extend this policy by default for AMD based
systems using s0i3 as well.

Cc: Nehal-bakulchandra Shah <Nehal-bakulchandra.Shah@amd.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214091
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/ahci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 33192a8f687d6..ff2add0101fe5 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -442,6 +442,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	/* AMD */
 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
+	{ PCI_VDEVICE(AMD, 0x7901), board_ahci_mobile }, /* AMD Green Sardine */
 	/* AMD is using RAID class only for ahci controllers */
 	{ PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 	  PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
-- 
GitLab


From 22519eff7df2d88adcc2568d86046ce1e2b52803 Mon Sep 17 00:00:00 2001
From: Teng Qi <starmiku1207184332@gmail.com>
Date: Wed, 17 Nov 2021 11:44:53 +0800
Subject: [PATCH 1903/4878] ethernet: hisilicon: hns: hns_dsaf_misc: fix a
 possible array overflow in hns_dsaf_ge_srst_by_port()

[ Upstream commit a66998e0fbf213d47d02813b9679426129d0d114 ]

The if statement:
  if (port >= DSAF_GE_NUM)
        return;

limits the value of port less than DSAF_GE_NUM (i.e., 8).
However, if the value of port is 6 or 7, an array overflow could occur:
  port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is
greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Teng Qi <starmiku1207184332@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index a9aca8c24e90d..aa87e4d121532 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -400,6 +400,10 @@ static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
 		return;
 
 	if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
+		/* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8.
+		   We need check to prevent array overflow */
+		if (port >= DSAF_MAX_PORT_NUM)
+			return;
 		reg_val_1  = 0x1 << port;
 		port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
 		/* there is difference between V1 and V2 in register.*/
-- 
GitLab


From 4d5968ea06fbfc7f6bb88dee7ce459f4755cebb5 Mon Sep 17 00:00:00 2001
From: Jordy Zomer <jordy@pwning.systems>
Date: Wed, 17 Nov 2021 20:06:48 +0100
Subject: [PATCH 1904/4878] ipv6: check return value of ipv6_skip_exthdr

[ Upstream commit 5f9c55c8066bcd93ac25234a02585701fe2e31df ]

The offset value is used in pointer math on skb->data.
Since ipv6_skip_exthdr may return -1 the pointer to uh and th
may not point to the actual udp and tcp headers and potentially
overwrite other stuff. This is why I think this should be checked.

EDIT:  added {}'s, thanks Kees

Signed-off-by: Jordy Zomer <jordy@pwning.systems>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/esp6.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 8d001f665fb15..7f2ffc7b1f75a 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -808,6 +808,12 @@ int esp6_input_done2(struct sk_buff *skb, int err)
 		struct tcphdr *th;
 
 		offset = ipv6_skip_exthdr(skb, offset, &nexthdr, &frag_off);
+
+		if (offset < 0) {
+			err = -EINVAL;
+			goto out;
+		}
+
 		uh = (void *)(skb->data + offset);
 		th = (void *)(skb->data + offset);
 		hdr_len += offset;
-- 
GitLab


From f059fa40f0fcc6bc7a12e0f2a2504e9a4ff74f1f Mon Sep 17 00:00:00 2001
From: zhangyue <zhangyue1@kylinos.cn>
Date: Thu, 18 Nov 2021 13:46:32 +0800
Subject: [PATCH 1905/4878] net: tulip: de4x5: fix the problem that the array
 'lp->phy[8]' may be out of bound

[ Upstream commit 61217be886b5f7402843677e4be7e7e83de9cb41 ]

In line 5001, if all id in the array 'lp->phy[8]' is not 0, when the
'for' end, the 'k' is 8.

At this time, the array 'lp->phy[8]' may be out of bound.

Signed-off-by: zhangyue <zhangyue1@kylinos.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 30 +++++++++++++++-----------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 683e328b5461d..ffc25ecfa8d6a 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -4997,19 +4997,23 @@ mii_get_phy(struct net_device *dev)
 	}
 	if ((j == limit) && (i < DE4X5_MAX_MII)) {
 	    for (k=0; k < DE4X5_MAX_PHY && lp->phy[k].id; k++);
-	    lp->phy[k].addr = i;
-	    lp->phy[k].id = id;
-	    lp->phy[k].spd.reg = GENERIC_REG;      /* ANLPA register         */
-	    lp->phy[k].spd.mask = GENERIC_MASK;    /* 100Mb/s technologies   */
-	    lp->phy[k].spd.value = GENERIC_VALUE;  /* TX & T4, H/F Duplex    */
-	    lp->mii_cnt++;
-	    lp->active++;
-	    printk("%s: Using generic MII device control. If the board doesn't operate,\nplease mail the following dump to the author:\n", dev->name);
-	    j = de4x5_debug;
-	    de4x5_debug |= DEBUG_MII;
-	    de4x5_dbg_mii(dev, k);
-	    de4x5_debug = j;
-	    printk("\n");
+	    if (k < DE4X5_MAX_PHY) {
+		lp->phy[k].addr = i;
+		lp->phy[k].id = id;
+		lp->phy[k].spd.reg = GENERIC_REG;      /* ANLPA register         */
+		lp->phy[k].spd.mask = GENERIC_MASK;    /* 100Mb/s technologies   */
+		lp->phy[k].spd.value = GENERIC_VALUE;  /* TX & T4, H/F Duplex    */
+		lp->mii_cnt++;
+		lp->active++;
+		printk("%s: Using generic MII device control. If the board doesn't operate,\nplease mail the following dump to the author:\n", dev->name);
+		j = de4x5_debug;
+		de4x5_debug |= DEBUG_MII;
+		de4x5_dbg_mii(dev, k);
+		de4x5_debug = j;
+		printk("\n");
+	    } else {
+		goto purgatory;
+	    }
 	}
     }
   purgatory:
-- 
GitLab


From 2c15d2a6ba2709dd8e209e597d1ff2a1a1996936 Mon Sep 17 00:00:00 2001
From: Teng Qi <starmiku1207184332@gmail.com>
Date: Thu, 18 Nov 2021 15:01:18 +0800
Subject: [PATCH 1906/4878] net: ethernet: dec: tulip: de4x5: fix possible
 array overflows in type3_infoblock()

[ Upstream commit 0fa68da72c3be09e06dd833258ee89c33374195f ]

The definition of macro MOTO_SROM_BUG is:
  #define MOTO_SROM_BUG    (lp->active == 8 && (get_unaligned_le32(
  dev->dev_addr) & 0x00ffffff) == 0x3e0008)

and the if statement
  if (MOTO_SROM_BUG) lp->active = 0;

using this macro indicates lp->active could be 8. If lp->active is 8 and
the second comparison of this macro is false. lp->active will remain 8 in:
  lp->phy[lp->active].gep = (*p ? p : NULL); p += (2 * (*p) + 1);
  lp->phy[lp->active].rst = (*p ? p : NULL); p += (2 * (*p) + 1);
  lp->phy[lp->active].mc  = get_unaligned_le16(p); p += 2;
  lp->phy[lp->active].ana = get_unaligned_le16(p); p += 2;
  lp->phy[lp->active].fdx = get_unaligned_le16(p); p += 2;
  lp->phy[lp->active].ttm = get_unaligned_le16(p); p += 2;
  lp->phy[lp->active].mci = *p;

However, the length of array lp->phy is 8, so array overflows can occur.
To fix these possible array overflows, we first check lp->active and then
return -EINVAL if it is greater or equal to ARRAY_SIZE(lp->phy) (i.e. 8).

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Teng Qi <starmiku1207184332@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index ffc25ecfa8d6a..8edd394bc3358 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -4706,6 +4706,10 @@ type3_infoblock(struct net_device *dev, u_char count, u_char *p)
         lp->ibn = 3;
         lp->active = *p++;
 	if (MOTO_SROM_BUG) lp->active = 0;
+	/* if (MOTO_SROM_BUG) statement indicates lp->active could
+	 * be 8 (i.e. the size of array lp->phy) */
+	if (WARN_ON(lp->active >= ARRAY_SIZE(lp->phy)))
+		return -EINVAL;
 	lp->phy[lp->active].gep = (*p ? p : NULL); p += (2 * (*p) + 1);
 	lp->phy[lp->active].rst = (*p ? p : NULL); p += (2 * (*p) + 1);
 	lp->phy[lp->active].mc  = get_unaligned_le16(p); p += 2;
-- 
GitLab


From d9b72274f32a3357a6180862f363de9ef2d3d1d8 Mon Sep 17 00:00:00 2001
From: German Gomez <german.gomez@arm.com>
Date: Fri, 5 Nov 2021 10:41:30 +0000
Subject: [PATCH 1907/4878] perf inject: Fix ARM SPE handling

[ Upstream commit 9e1a8d9f683260d50e0a14176d3f7c46a93b2700 ]

'perf inject' is currently not working for Arm SPE. When you try to run
'perf inject' and 'perf report' with a perf.data file that contains SPE
traces, the tool reports a "Bad address" error:

  # ./perf record -e arm_spe_0/ts_enable=1,store_filter=1,branch_filter=1,load_filter=1/ -a -- sleep 1
  # ./perf inject -i perf.data -o perf.inject.data --itrace
  # ./perf report -i perf.inject.data --stdio

  0x42c00 [0x8]: failed to process type: 9 [Bad address]
  Error:
  failed to process sample

As far as I know, the issue was first spotted in [1], but 'perf inject'
was not yet injecting the samples. This patch does something similar to
what cs_etm does for injecting the samples [2], but for SPE.

[1] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210412091006.468557-1-leo.yan@linaro.org/#24117339
[2] https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/tree/tools/perf/util/cs-etm.c?h=perf/core&id=133fe2e617e48ca0948983329f43877064ffda3e#n1196

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20211105104130.28186-2-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/arm-spe.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 3882a5360ada4..0350020acb96f 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -48,6 +48,7 @@ struct arm_spe {
 	u8				timeless_decoding;
 	u8				data_queued;
 
+	u64				sample_type;
 	u8				sample_flc;
 	u8				sample_llc;
 	u8				sample_tlb;
@@ -244,6 +245,12 @@ static void arm_spe_prep_sample(struct arm_spe *spe,
 	event->sample.header.size = sizeof(struct perf_event_header);
 }
 
+static int arm_spe__inject_event(union perf_event *event, struct perf_sample *sample, u64 type)
+{
+	event->header.size = perf_event__sample_event_size(sample, type, 0);
+	return perf_event__synthesize_sample(event, type, 0, sample);
+}
+
 static inline int
 arm_spe_deliver_synth_event(struct arm_spe *spe,
 			    struct arm_spe_queue *speq __maybe_unused,
@@ -252,6 +259,12 @@ arm_spe_deliver_synth_event(struct arm_spe *spe,
 {
 	int ret;
 
+	if (spe->synth_opts.inject) {
+		ret = arm_spe__inject_event(event, sample, spe->sample_type);
+		if (ret)
+			return ret;
+	}
+
 	ret = perf_session__deliver_synth_event(spe->session, event, sample);
 	if (ret)
 		pr_err("ARM SPE: failed to deliver event, error %d\n", ret);
@@ -809,6 +822,8 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
 	else
 		attr.sample_type |= PERF_SAMPLE_TIME;
 
+	spe->sample_type = attr.sample_type;
+
 	attr.exclude_user = evsel->core.attr.exclude_user;
 	attr.exclude_kernel = evsel->core.attr.exclude_kernel;
 	attr.exclude_hv = evsel->core.attr.exclude_hv;
-- 
GitLab


From a4c17ebdd6249cb4e061358d3693383f6628e069 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 17 Nov 2021 23:12:47 -0800
Subject: [PATCH 1908/4878] perf hist: Fix memory leak of a perf_hpp_fmt

[ Upstream commit 0ca1f534a776cc7d42f2c33da4732b74ec2790cd ]

perf_hpp__column_unregister() removes an entry from a list but doesn't
free the memory causing a memory leak spotted by leak sanitizer.

Add the free while at the same time reducing the scope of the function
to static.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211118071247.2140392-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/ui/hist.c   | 28 ++++++++++++++--------------
 tools/perf/util/hist.h |  1 -
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index c1f24d0048527..5075ecead5f3d 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -535,6 +535,18 @@ struct perf_hpp_list perf_hpp_list = {
 #undef __HPP_SORT_ACC_FN
 #undef __HPP_SORT_RAW_FN
 
+static void fmt_free(struct perf_hpp_fmt *fmt)
+{
+	/*
+	 * At this point fmt should be completely
+	 * unhooked, if not it's a bug.
+	 */
+	BUG_ON(!list_empty(&fmt->list));
+	BUG_ON(!list_empty(&fmt->sort_list));
+
+	if (fmt->free)
+		fmt->free(fmt);
+}
 
 void perf_hpp__init(void)
 {
@@ -598,9 +610,10 @@ void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
 	list_add(&format->sort_list, &list->sorts);
 }
 
-void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
+static void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
 {
 	list_del_init(&format->list);
+	fmt_free(format);
 }
 
 void perf_hpp__cancel_cumulate(void)
@@ -672,19 +685,6 @@ next:
 }
 
 
-static void fmt_free(struct perf_hpp_fmt *fmt)
-{
-	/*
-	 * At this point fmt should be completely
-	 * unhooked, if not it's a bug.
-	 */
-	BUG_ON(!list_empty(&fmt->list));
-	BUG_ON(!list_empty(&fmt->sort_list));
-
-	if (fmt->free)
-		fmt->free(fmt);
-}
-
 void perf_hpp__reset_output_field(struct perf_hpp_list *list)
 {
 	struct perf_hpp_fmt *fmt, *tmp;
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 96b1c13bbccc5..919f2c6c48142 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -362,7 +362,6 @@ enum {
 };
 
 void perf_hpp__init(void);
-void perf_hpp__column_unregister(struct perf_hpp_fmt *format);
 void perf_hpp__cancel_cumulate(void);
 void perf_hpp__setup_output_field(struct perf_hpp_list *list);
 void perf_hpp__reset_output_field(struct perf_hpp_list *list);
-- 
GitLab


From ff061b5bda73c4f785b4703eeb0848fd99e5608a Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Wed, 17 Nov 2021 23:38:04 -0800
Subject: [PATCH 1909/4878] perf report: Fix memory leaks around perf_tip()

[ Upstream commit d9fc706108c15f8bc2d4ccccf8e50f74830fabd9 ]

perf_tip() may allocate memory or use a literal, this means memory
wasn't freed if allocated. Change the API so that literals aren't used.

At the same time add missing frees for system_path. These issues were
spotted using leak sanitizer.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211118073804.2149974-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/builtin-report.c | 15 +++++++++------
 tools/perf/util/util.c      | 14 +++++++-------
 tools/perf/util/util.h      |  2 +-
 3 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 5824aa24acfcc..91cab5cdfbc16 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -610,14 +610,17 @@ static int report__browse_hists(struct report *rep)
 	int ret;
 	struct perf_session *session = rep->session;
 	struct evlist *evlist = session->evlist;
-	const char *help = perf_tip(system_path(TIPDIR));
+	char *help = NULL, *path = NULL;
 
-	if (help == NULL) {
+	path = system_path(TIPDIR);
+	if (perf_tip(&help, path) || help == NULL) {
 		/* fallback for people who don't install perf ;-) */
-		help = perf_tip(DOCDIR);
-		if (help == NULL)
-			help = "Cannot load tips.txt file, please install perf!";
+		free(path);
+		path = system_path(DOCDIR);
+		if (perf_tip(&help, path) || help == NULL)
+			help = strdup("Cannot load tips.txt file, please install perf!");
 	}
+	free(path);
 
 	switch (use_browser) {
 	case 1:
@@ -644,7 +647,7 @@ static int report__browse_hists(struct report *rep)
 		ret = perf_evlist__tty_browse_hists(evlist, rep, help);
 		break;
 	}
-
+	free(help);
 	return ret;
 }
 
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 37a9492edb3eb..df3c4671be72a 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -379,32 +379,32 @@ fetch_kernel_version(unsigned int *puint, char *str,
 	return 0;
 }
 
-const char *perf_tip(const char *dirpath)
+int perf_tip(char **strp, const char *dirpath)
 {
 	struct strlist *tips;
 	struct str_node *node;
-	char *tip = NULL;
 	struct strlist_config conf = {
 		.dirname = dirpath,
 		.file_only = true,
 	};
+	int ret = 0;
 
+	*strp = NULL;
 	tips = strlist__new("tips.txt", &conf);
 	if (tips == NULL)
-		return errno == ENOENT ? NULL :
-			"Tip: check path of tips.txt or get more memory! ;-p";
+		return -errno;
 
 	if (strlist__nr_entries(tips) == 0)
 		goto out;
 
 	node = strlist__entry(tips, random() % strlist__nr_entries(tips));
-	if (asprintf(&tip, "Tip: %s", node->s) < 0)
-		tip = (char *)"Tip: get more memory! ;-)";
+	if (asprintf(strp, "Tip: %s", node->s) < 0)
+		ret = -ENOMEM;
 
 out:
 	strlist__delete(tips);
 
-	return tip;
+	return ret;
 }
 
 char *perf_exe(char *buf, int len)
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index ad737052e5977..9f0d36ba77f2d 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -39,7 +39,7 @@ int fetch_kernel_version(unsigned int *puint,
 #define KVER_FMT	"%d.%d.%d"
 #define KVER_PARAM(x)	KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x)
 
-const char *perf_tip(const char *dirpath);
+int perf_tip(char **strp, const char *dirpath);
 
 #ifndef HAVE_SCHED_GETCPU_SUPPORT
 int sched_getcpu(void);
-- 
GitLab


From cc443ac5bb3135e21c49dd10bb947c50e261a2eb Mon Sep 17 00:00:00 2001
From: Wen Gu <guwen@linux.alibaba.com>
Date: Mon, 22 Nov 2021 20:32:53 +0800
Subject: [PATCH 1910/4878] net/smc: Avoid warning of possible recursive
 locking

[ Upstream commit 7a61432dc81375be06b02f0061247d3efbdfce3a ]

Possible recursive locking is detected by lockdep when SMC
falls back to TCP. The corresponding warnings are as follows:

 ============================================
 WARNING: possible recursive locking detected
 5.16.0-rc1+ #18 Tainted: G            E
 --------------------------------------------
 wrk/1391 is trying to acquire lock:
 ffff975246c8e7d8 (&ei->socket.wq.wait){..-.}-{3:3}, at: smc_switch_to_fallback+0x109/0x250 [smc]

 but task is already holding lock:
 ffff975246c8f918 (&ei->socket.wq.wait){..-.}-{3:3}, at: smc_switch_to_fallback+0xfe/0x250 [smc]

 other info that might help us debug this:
  Possible unsafe locking scenario:

        CPU0
        ----
   lock(&ei->socket.wq.wait);
   lock(&ei->socket.wq.wait);

  *** DEADLOCK ***

  May be due to missing lock nesting notation

 2 locks held by wrk/1391:
  #0: ffff975246040130 (sk_lock-AF_SMC){+.+.}-{0:0}, at: smc_connect+0x43/0x150 [smc]
  #1: ffff975246c8f918 (&ei->socket.wq.wait){..-.}-{3:3}, at: smc_switch_to_fallback+0xfe/0x250 [smc]

 stack backtrace:
 Call Trace:
  <TASK>
  dump_stack_lvl+0x56/0x7b
  __lock_acquire+0x951/0x11f0
  lock_acquire+0x27a/0x320
  ? smc_switch_to_fallback+0x109/0x250 [smc]
  ? smc_switch_to_fallback+0xfe/0x250 [smc]
  _raw_spin_lock_irq+0x3b/0x80
  ? smc_switch_to_fallback+0x109/0x250 [smc]
  smc_switch_to_fallback+0x109/0x250 [smc]
  smc_connect_fallback+0xe/0x30 [smc]
  __smc_connect+0xcf/0x1090 [smc]
  ? mark_held_locks+0x61/0x80
  ? __local_bh_enable_ip+0x77/0xe0
  ? lockdep_hardirqs_on+0xbf/0x130
  ? smc_connect+0x12a/0x150 [smc]
  smc_connect+0x12a/0x150 [smc]
  __sys_connect+0x8a/0xc0
  ? syscall_enter_from_user_mode+0x20/0x70
  __x64_sys_connect+0x16/0x20
  do_syscall_64+0x34/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae

The nested locking in smc_switch_to_fallback() is considered to
possibly cause a deadlock because smc_wait->lock and clc_wait->lock
are the same type of lock. But actually it is safe so far since
there is no other place trying to obtain smc_wait->lock when
clc_wait->lock is held. So the patch replaces spin_lock() with
spin_lock_nested() to avoid false report by lockdep.

Link: https://lkml.org/lkml/2021/11/19/962
Fixes: 2153bd1e3d3d ("Transfer remaining wait queue entries during fallback")
Reported-by: syzbot+e979d3597f48262cb4ee@syzkaller.appspotmail.com
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Acked-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 04bf8088872a9..d324a12c26cd9 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -529,7 +529,7 @@ static void smc_switch_to_fallback(struct smc_sock *smc)
 		 * to clcsocket->wq during the fallback.
 		 */
 		spin_lock_irqsave(&smc_wait->lock, flags);
-		spin_lock(&clc_wait->lock);
+		spin_lock_nested(&clc_wait->lock, SINGLE_DEPTH_NESTING);
 		list_splice_init(&smc_wait->head, &clc_wait->head);
 		spin_unlock(&clc_wait->lock);
 		spin_unlock_irqrestore(&smc_wait->lock, flags);
-- 
GitLab


From 136cabf15779bff94838c1068cbb9e9f200ac56e Mon Sep 17 00:00:00 2001
From: Mario Limonciello <mario.limonciello@amd.com>
Date: Sun, 31 Oct 2021 20:48:52 -0500
Subject: [PATCH 1911/4878] ACPI: Add stubs for wakeup handler functions

[ Upstream commit e9380df851878cee71df5a1c7611584421527f7e ]

The commit ddfd9dcf270c ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
added new functions for drivers to use during the s2idle wakeup path, but
didn't add stubs for when CONFIG_ACPI wasn't set.

Add those stubs in for other drivers to be able to use.

Fixes: ddfd9dcf270c ("ACPI: PM: Add acpi_[un]register_wakeup_handler()")
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20211101014853.6177-1-mario.limonciello@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/acpi.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index fdb1d5262ce84..96d69404a54ff 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -953,6 +953,15 @@ static inline struct acpi_device *acpi_resource_consumer(struct resource *res)
 	return NULL;
 }
 
+static inline int acpi_register_wakeup_handler(int wake_irq,
+	bool (*wakeup)(void *context), void *context)
+{
+	return -ENXIO;
+}
+
+static inline void acpi_unregister_wakeup_handler(
+	bool (*wakeup)(void *context), void *context) { }
+
 #endif	/* !CONFIG_ACPI */
 
 #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
-- 
GitLab


From 2a74c13dfe83f3c22fdd4326b39a6ed2b41107e7 Mon Sep 17 00:00:00 2001
From: Stephen Suryaputra <ssuryaextr@gmail.com>
Date: Tue, 30 Nov 2021 11:26:37 -0500
Subject: [PATCH 1912/4878] vrf: Reset IPCB/IP6CB when processing outbound pkts
 in vrf dev xmit

commit ee201011c1e1563c114a55c86eb164b236f18e84 upstream.

IPCB/IP6CB need to be initialized when processing outbound v4 or v6 pkts
in the codepath of vrf device xmit function so that leftover garbage
doesn't cause futher code that uses the CB to incorrectly process the
pkt.

One occasion of the issue might occur when MPLS route uses the vrf
device as the outgoing device such as when the route is added using "ip
-f mpls route add <label> dev <vrf>" command.

The problems seems to exist since day one. Hence I put the day one
commits on the Fixes tags.

Fixes: 193125dbd8eb ("net: Introduce VRF device driver")
Fixes: 35402e313663 ("net: Add IPv6 support to VRF device")
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211130162637.3249-1-ssuryaextr@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/vrf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 71902706234cc..570e1d11ddc7a 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -497,6 +497,7 @@ static netdev_tx_t vrf_process_v6_outbound(struct sk_buff *skb,
 	/* strip the ethernet header added for pass through VRF device */
 	__skb_pull(skb, skb_network_offset(skb));
 
+	memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
 	ret = vrf_ip6_local_out(net, skb->sk, skb);
 	if (unlikely(net_xmit_eval(ret)))
 		dev->stats.tx_errors++;
@@ -580,6 +581,7 @@ static netdev_tx_t vrf_process_v4_outbound(struct sk_buff *skb,
 					       RT_SCOPE_LINK);
 	}
 
+	memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
 	ret = vrf_ip_local_out(dev_net(skb_dst(skb)->dev), skb->sk, skb);
 	if (unlikely(net_xmit_eval(ret)))
 		vrf_dev->stats.tx_errors++;
-- 
GitLab


From c200721f8eda1c704af09b41e3d77c006672d572 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Wed, 1 Dec 2021 23:45:50 +0900
Subject: [PATCH 1913/4878] kprobes: Limit max data_size of the kretprobe
 instances

commit 6bbfa44116689469267f1a6e3d233b52114139d2 upstream.

The 'kprobe::data_size' is unsigned, thus it can not be negative.  But if
user sets it enough big number (e.g. (size_t)-8), the result of 'data_size
+ sizeof(struct kretprobe_instance)' becomes smaller than sizeof(struct
kretprobe_instance) or zero. In result, the kretprobe_instance are
allocated without enough memory, and kretprobe accesses outside of
allocated memory.

To avoid this issue, introduce a max limitation of the
kretprobe::data_size. 4KB per instance should be OK.

Link: https://lkml.kernel.org/r/163836995040.432120.10322772773821182925.stgit@devnote2

Cc: stable@vger.kernel.org
Fixes: f47cd9b553aa ("kprobes: kretprobe user entry-handler")
Reported-by: zhangyue <zhangyue1@kylinos.cn>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/kprobes.h | 2 ++
 kernel/kprobes.c        | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 21f21f7f878ce..4dbebd319b6f5 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -155,6 +155,8 @@ struct kretprobe {
 	raw_spinlock_t lock;
 };
 
+#define KRETPROBE_MAX_DATA_SIZE	4096
+
 struct kretprobe_instance {
 	union {
 		struct hlist_node hlist;
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 66a6ba81edb1e..cdea59acd66bf 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2137,6 +2137,9 @@ int register_kretprobe(struct kretprobe *rp)
 		}
 	}
 
+	if (rp->data_size > KRETPROBE_MAX_DATA_SIZE)
+		return -E2BIG;
+
 	rp->kp.pre_handler = pre_handler_kretprobe;
 	rp->kp.post_handler = NULL;
 	rp->kp.fault_handler = NULL;
-- 
GitLab


From de4f5eb02cfea68fcfe6b9dde7e0e1dde14043ea Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Thu, 11 Nov 2021 15:10:03 +0100
Subject: [PATCH 1914/4878] rt2x00: do not mark device gone on EPROTO errors
 during start

commit ed53ae75693096f1c10b4561edd31a07b631bd72 upstream.

As reported by Exuvo is possible that we have lot's of EPROTO errors
during device start i.e. firmware load. But after that device works
correctly. Hence marking device gone by few EPROTO errors done by
commit e383c70474db ("rt2x00: check number of EPROTO errors") caused
regression - Exuvo device stop working after kernel update. To fix
disable the check during device start.

Link: https://lore.kernel.org/linux-wireless/bff7d309-a816-6a75-51b6-5928ef4f7a8c@exuvo.se/
Reported-and-tested-by: Exuvo <exuvo@exuvo.se>
Fixes: e383c70474db ("rt2x00: check number of EPROTO errors")
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211111141003.GA134627@wp.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ralink/rt2x00/rt2x00usb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
index e4473a5512415..74c3d8cb31002 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
@@ -25,6 +25,9 @@ static bool rt2x00usb_check_usb_error(struct rt2x00_dev *rt2x00dev, int status)
 	if (status == -ENODEV || status == -ENOENT)
 		return true;
 
+	if (!test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
+		return false;
+
 	if (status == -EPROTO || status == -ETIMEDOUT)
 		rt2x00dev->num_proto_errs++;
 	else
-- 
GitLab


From f717f29e84688b0327ae6e51fabaf397fbcd18d3 Mon Sep 17 00:00:00 2001
From: Ioanna Alifieraki <ioanna-maria.alifieraki@canonical.com>
Date: Mon, 15 Nov 2021 15:16:45 +0200
Subject: [PATCH 1915/4878] ipmi: Move remove_work to dedicated workqueue

commit 1d49eb91e86e8c1c1614c72e3e958b6b7e2472a9 upstream.

Currently when removing an ipmi_user the removal is deferred as a work on
the system's workqueue. Although this guarantees the free operation will
occur in non atomic context, it can race with the ipmi_msghandler module
removal (see [1]) . In case a remove_user work is scheduled for removal
and shortly after ipmi_msghandler module is removed we can end up in a
situation where the module is removed fist and when the work is executed
the system crashes with :
BUG: unable to handle page fault for address: ffffffffc05c3450
PF: supervisor instruction fetch in kernel mode
PF: error_code(0x0010) - not-present page
because the pages of the module are gone. In cleanup_ipmi() there is no
easy way to detect if there are any pending works to flush them before
removing the module. This patch creates a separate workqueue and schedules
the remove_work works on it. When removing the module the workqueue is
drained when destroyed to avoid the race.

[1] https://bugs.launchpad.net/bugs/1950666

Cc: stable@vger.kernel.org # 5.1
Fixes: 3b9a907223d7 (ipmi: fix sleep-in-atomic in free_user at cleanup SRCU user->release_barrier)
Signed-off-by: Ioanna Alifieraki <ioanna-maria.alifieraki@canonical.com>
Message-Id: <20211115131645.25116-1-ioanna-maria.alifieraki@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index abb865b1dff29..b888e3cf4b8b8 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -203,6 +203,8 @@ struct ipmi_user {
 	struct work_struct remove_work;
 };
 
+struct workqueue_struct *remove_work_wq;
+
 static struct ipmi_user *acquire_ipmi_user(struct ipmi_user *user, int *index)
 	__acquires(user->release_barrier)
 {
@@ -1272,7 +1274,7 @@ static void free_user(struct kref *ref)
 	struct ipmi_user *user = container_of(ref, struct ipmi_user, refcount);
 
 	/* SRCU cleanup must happen in task context. */
-	schedule_work(&user->remove_work);
+	queue_work(remove_work_wq, &user->remove_work);
 }
 
 static void _ipmi_destroy_user(struct ipmi_user *user)
@@ -5166,6 +5168,13 @@ static int ipmi_init_msghandler(void)
 
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
 
+	remove_work_wq = create_singlethread_workqueue("ipmi-msghandler-remove-wq");
+	if (!remove_work_wq) {
+		pr_err("unable to create ipmi-msghandler-remove-wq workqueue");
+		rv = -ENOMEM;
+		goto out;
+	}
+
 	initialized = true;
 
 out:
@@ -5191,6 +5200,8 @@ static void __exit cleanup_ipmi(void)
 	int count;
 
 	if (initialized) {
+		destroy_workqueue(remove_work_wq);
+
 		atomic_notifier_chain_unregister(&panic_notifier_list,
 						 &panic_block);
 
-- 
GitLab


From 92283c2728a9c40fbdbbb2de760c37adb8838654 Mon Sep 17 00:00:00 2001
From: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Date: Mon, 29 Nov 2021 16:02:48 +0800
Subject: [PATCH 1916/4878] cpufreq: Fix get_cpu_device() failure in
 add_cpu_dev_symlink()

commit 2c1b5a84669d2477d8fffe9136e86a2cff591729 upstream.

When I hot added a CPU, I found 'cpufreq' directory was not created
below /sys/devices/system/cpu/cpuX/.

It is because get_cpu_device() failed in add_cpu_dev_symlink().

cpufreq_add_dev() is the .add_dev callback of a CPU subsys interface.
It will be called when the CPU device registered into the system.
The call chain is as follows:

  register_cpu()
  ->device_register()
   ->device_add()
    ->bus_probe_device()
     ->cpufreq_add_dev()

But only after the CPU device has been registered, we can get the
CPU device by get_cpu_device(), otherwise it will return NULL.

Since we already have the CPU device in cpufreq_add_dev(), pass
it to add_cpu_dev_symlink().

I noticed that the 'kobj' of the CPU device has been added into
the system before cpufreq_add_dev().

Fixes: 2f0ba790df51 ("cpufreq: Fix creation of symbolic links to policy directories")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/cpufreq/cpufreq.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ebee0ad559fad..8e159fb6af9cd 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1004,10 +1004,9 @@ static struct kobj_type ktype_cpufreq = {
 	.release	= cpufreq_sysfs_release,
 };
 
-static void add_cpu_dev_symlink(struct cpufreq_policy *policy, unsigned int cpu)
+static void add_cpu_dev_symlink(struct cpufreq_policy *policy, unsigned int cpu,
+				struct device *dev)
 {
-	struct device *dev = get_cpu_device(cpu);
-
 	if (unlikely(!dev))
 		return;
 
@@ -1391,7 +1390,7 @@ static int cpufreq_online(unsigned int cpu)
 	if (new_policy) {
 		for_each_cpu(j, policy->related_cpus) {
 			per_cpu(cpufreq_cpu_data, j) = policy;
-			add_cpu_dev_symlink(policy, j);
+			add_cpu_dev_symlink(policy, j, get_cpu_device(j));
 		}
 
 		policy->min_freq_req = kzalloc(2 * sizeof(*policy->min_freq_req),
@@ -1553,7 +1552,7 @@ static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
 	/* Create sysfs link on CPU registration */
 	policy = per_cpu(cpufreq_cpu_data, cpu);
 	if (policy)
-		add_cpu_dev_symlink(policy, cpu);
+		add_cpu_dev_symlink(policy, cpu, dev);
 
 	return 0;
 }
-- 
GitLab


From 80bfed369be9083fec6bf51157167b286f9dd218 Mon Sep 17 00:00:00 2001
From: Niklas Schnelle <schnelle@linux.ibm.com>
Date: Thu, 4 Nov 2021 15:04:10 +0100
Subject: [PATCH 1917/4878] s390/pci: move pseudo-MMIO to prevent MIO overlap

commit 52d04d408185b7aa47628d2339c28ec70074e0ae upstream.

When running without MIO support, with pci=nomio or for devices which
are not MIO-capable the zPCI subsystem generates pseudo-MMIO addresses
to allow access to PCI BARs via MMIO based Linux APIs even though the
platform uses function handles and BAR numbers.

This is done by stashing an index into our global IOMAP array which
contains the function handle in the 16 most significant bits of the
addresses returned by ioremap() always setting the most significant bit.

On the other hand the MIO addresses assigned by the platform for use,
while requiring special instructions, allow PCI access with virtually
mapped physical addresses. Now the problem is that these MIO addresses
and our own pseudo-MMIO addresses may overlap, while functionally this
would not be a problem by itself this overlap is detected by common code
as both address types are added as resources in the iomem_resource tree.
This leads to the overlapping resource claim of either the MIO capable
or non-MIO capable devices with being rejected.

Since PCI is tightly coupled to the use of the iomem_resource tree, see
for example the code for request_mem_region(), we can't reasonably get
rid of the overlap being detected by keeping our pseudo-MMIO addresses
out of the iomem_resource tree.

Instead let's move the range used by our own pseudo-MMIO addresses by
starting at (1UL << 62) and only using addresses below (1UL << 63) thus
avoiding the range currently used for MIO addresses.

Fixes: c7ff0e918a7c ("s390/pci: deal with devices that have no support for MIO instructions")
Cc: stable@vger.kernel.org # 5.3+
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/include/asm/pci_io.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h
index e4dc64cc9c555..287bb88f76986 100644
--- a/arch/s390/include/asm/pci_io.h
+++ b/arch/s390/include/asm/pci_io.h
@@ -14,12 +14,13 @@
 
 /* I/O Map */
 #define ZPCI_IOMAP_SHIFT		48
-#define ZPCI_IOMAP_ADDR_BASE		0x8000000000000000UL
+#define ZPCI_IOMAP_ADDR_SHIFT		62
+#define ZPCI_IOMAP_ADDR_BASE		(1UL << ZPCI_IOMAP_ADDR_SHIFT)
 #define ZPCI_IOMAP_ADDR_OFF_MASK	((1UL << ZPCI_IOMAP_SHIFT) - 1)
 #define ZPCI_IOMAP_MAX_ENTRIES							\
-	((ULONG_MAX - ZPCI_IOMAP_ADDR_BASE + 1) / (1UL << ZPCI_IOMAP_SHIFT))
+	(1UL << (ZPCI_IOMAP_ADDR_SHIFT - ZPCI_IOMAP_SHIFT))
 #define ZPCI_IOMAP_ADDR_IDX_MASK						\
-	(~ZPCI_IOMAP_ADDR_OFF_MASK - ZPCI_IOMAP_ADDR_BASE)
+	((ZPCI_IOMAP_ADDR_BASE - 1) & ~ZPCI_IOMAP_ADDR_OFF_MASK)
 
 struct zpci_iomap_entry {
 	u32 fh;
-- 
GitLab


From 4baba6ba56eb91a735a027f783cc4b9276b48d5b Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 1 Dec 2021 10:06:14 -0800
Subject: [PATCH 1918/4878] fget: check that the fd still exists after getting
 a ref to it

commit 054aa8d439b9185d4f5eb9a90282d1ce74772969 upstream.

Jann Horn points out that there is another possible race wrt Unix domain
socket garbage collection, somewhat reminiscent of the one fixed in
commit cbcf01128d0a ("af_unix: fix garbage collect vs MSG_PEEK").

See the extended comment about the garbage collection requirements added
to unix_peek_fds() by that commit for details.

The race comes from how we can locklessly look up a file descriptor just
as it is in the process of being closed, and with the right artificial
timing (Jann added a few strategic 'mdelay(500)' calls to do that), the
Unix domain socket garbage collector could see the reference count
decrement of the close() happen before fget() took its reference to the
file and the file was attached onto a new file descriptor.

This is all (intentionally) correct on the 'struct file *' side, with
RCU lookups and lockless reference counting very much part of the
design.  Getting that reference count out of order isn't a problem per
se.

But the garbage collector can get confused by seeing this situation of
having seen a file not having any remaining external references and then
seeing it being attached to an fd.

In commit cbcf01128d0a ("af_unix: fix garbage collect vs MSG_PEEK") the
fix was to serialize the file descriptor install with the garbage
collector by taking and releasing the unix_gc_lock.

That's not really an option here, but since this all happens when we are
in the process of looking up a file descriptor, we can instead simply
just re-check that the file hasn't been closed in the meantime, and just
re-do the lookup if we raced with a concurrent close() of the same file
descriptor.

Reported-and-tested-by: Jann Horn <jannh@google.com>
Acked-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/file.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/file.c b/fs/file.c
index 21c0893f2f1df..9d02352fa18c3 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -834,6 +834,10 @@ loop:
 			file = NULL;
 		else if (!get_file_rcu_many(file, refs))
 			goto loop;
+		else if (__fcheck_files(files, fd) != file) {
+			fput_many(file, refs);
+			goto loop;
+		}
 	}
 	rcu_read_unlock();
 
-- 
GitLab


From 4a46b2f5dce02539e88a300800812bd24a45e097 Mon Sep 17 00:00:00 2001
From: Baokun Li <libaokun1@huawei.com>
Date: Fri, 26 Nov 2021 10:03:06 +0800
Subject: [PATCH 1919/4878] sata_fsl: fix UAF in sata_fsl_port_stop when rmmod
 sata_fsl

commit 6c8ad7e8cf29eb55836e7a0215f967746ab2b504 upstream.

When the `rmmod sata_fsl.ko` command is executed in the PPC64 GNU/Linux,
a bug is reported:
 ==================================================================
 BUG: Unable to handle kernel data access on read at 0x80000800805b502c
 Oops: Kernel access of bad area, sig: 11 [#1]
 NIP [c0000000000388a4] .ioread32+0x4/0x20
 LR [80000000000c6034] .sata_fsl_port_stop+0x44/0xe0 [sata_fsl]
 Call Trace:
  .free_irq+0x1c/0x4e0 (unreliable)
  .ata_host_stop+0x74/0xd0 [libata]
  .release_nodes+0x330/0x3f0
  .device_release_driver_internal+0x178/0x2c0
  .driver_detach+0x64/0xd0
  .bus_remove_driver+0x70/0xf0
  .driver_unregister+0x38/0x80
  .platform_driver_unregister+0x14/0x30
  .fsl_sata_driver_exit+0x18/0xa20 [sata_fsl]
  .__se_sys_delete_module+0x1ec/0x2d0
  .system_call_exception+0xfc/0x1f0
  system_call_common+0xf8/0x200
 ==================================================================

The triggering of the BUG is shown in the following stack:

driver_detach
  device_release_driver_internal
    __device_release_driver
      drv->remove(dev) --> platform_drv_remove/platform_remove
        drv->remove(dev) --> sata_fsl_remove
          iounmap(host_priv->hcr_base);			<---- unmap
          kfree(host_priv);                             <---- free
      devres_release_all
        release_nodes
          dr->node.release(dev, dr->data) --> ata_host_stop
            ap->ops->port_stop(ap) --> sata_fsl_port_stop
                ioread32(hcr_base + HCONTROL)           <---- UAF
            host->ops->host_stop(host)

The iounmap(host_priv->hcr_base) and kfree(host_priv) functions should
not be executed in drv->remove. These functions should be executed in
host_stop after port_stop. Therefore, we move these functions to the
new function sata_fsl_host_stop and bind the new function to host_stop.

Fixes: faf0b2e5afe7 ("drivers/ata: add support to Freescale 3.0Gbps SATA Controller")
Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/sata_fsl.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index d55ee244d6931..c45bd338dbbcf 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1394,6 +1394,14 @@ static int sata_fsl_init_controller(struct ata_host *host)
 	return 0;
 }
 
+static void sata_fsl_host_stop(struct ata_host *host)
+{
+        struct sata_fsl_host_priv *host_priv = host->private_data;
+
+        iounmap(host_priv->hcr_base);
+        kfree(host_priv);
+}
+
 /*
  * scsi mid-layer and libata interface structures
  */
@@ -1426,6 +1434,8 @@ static struct ata_port_operations sata_fsl_ops = {
 	.port_start = sata_fsl_port_start,
 	.port_stop = sata_fsl_port_stop,
 
+	.host_stop      = sata_fsl_host_stop,
+
 	.pmp_attach = sata_fsl_pmp_attach,
 	.pmp_detach = sata_fsl_pmp_detach,
 };
@@ -1558,8 +1568,6 @@ static int sata_fsl_remove(struct platform_device *ofdev)
 	ata_host_detach(host);
 
 	irq_dispose_mapping(host_priv->irq);
-	iounmap(host_priv->hcr_base);
-	kfree(host_priv);
 
 	return 0;
 }
-- 
GitLab


From 16c242b09106e80bc6244d0a6c840277e6a2cc25 Mon Sep 17 00:00:00 2001
From: Baokun Li <libaokun1@huawei.com>
Date: Fri, 26 Nov 2021 10:03:07 +0800
Subject: [PATCH 1920/4878] sata_fsl: fix warning in remove_proc_entry when
 rmmod sata_fsl

commit 6f48394cf1f3e8486591ad98c11cdadb8f1ef2ad upstream.

Trying to remove the fsl-sata module in the PPC64 GNU/Linux
leads to the following warning:
 ------------[ cut here ]------------
 remove_proc_entry: removing non-empty directory 'irq/69',
   leaking at least 'fsl-sata[ff0221000.sata]'
 WARNING: CPU: 3 PID: 1048 at fs/proc/generic.c:722
   .remove_proc_entry+0x20c/0x220
 IRQMASK: 0
 NIP [c00000000033826c] .remove_proc_entry+0x20c/0x220
 LR [c000000000338268] .remove_proc_entry+0x208/0x220
 Call Trace:
  .remove_proc_entry+0x208/0x220 (unreliable)
  .unregister_irq_proc+0x104/0x140
  .free_desc+0x44/0xb0
  .irq_free_descs+0x9c/0xf0
  .irq_dispose_mapping+0x64/0xa0
  .sata_fsl_remove+0x58/0xa0 [sata_fsl]
  .platform_drv_remove+0x40/0x90
  .device_release_driver_internal+0x160/0x2c0
  .driver_detach+0x64/0xd0
  .bus_remove_driver+0x70/0xf0
  .driver_unregister+0x38/0x80
  .platform_driver_unregister+0x14/0x30
  .fsl_sata_driver_exit+0x18/0xa20 [sata_fsl]
 ---[ end trace 0ea876d4076908f5 ]---

The driver creates the mapping by calling irq_of_parse_and_map(),
so it also has to dispose the mapping. But the easy way out is to
simply use platform_get_irq() instead of irq_of_parse_map(). Also
we should adapt return value checking and propagate error values.

In this case the mapping is not managed by the device but by
the of core, so the device has not to dispose the mapping.

Fixes: faf0b2e5afe7 ("drivers/ata: add support to Freescale 3.0Gbps SATA Controller")
Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/sata_fsl.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index c45bd338dbbcf..0ba231e80b191 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1490,9 +1490,9 @@ static int sata_fsl_probe(struct platform_device *ofdev)
 	host_priv->ssr_base = ssr_base;
 	host_priv->csr_base = csr_base;
 
-	irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
-	if (!irq) {
-		dev_err(&ofdev->dev, "invalid irq from platform\n");
+	irq = platform_get_irq(ofdev, 0);
+	if (irq < 0) {
+		retval = irq;
 		goto error_exit_with_cleanup;
 	}
 	host_priv->irq = irq;
@@ -1567,8 +1567,6 @@ static int sata_fsl_remove(struct platform_device *ofdev)
 
 	ata_host_detach(host);
 
-	irq_dispose_mapping(host_priv->irq);
-
 	return 0;
 }
 
-- 
GitLab


From 209d35ee34e25f9668c404350a1c86d914c54ffa Mon Sep 17 00:00:00 2001
From: msizanoen1 <msizanoen@qtmlabs.xyz>
Date: Tue, 23 Nov 2021 13:48:32 +0100
Subject: [PATCH 1921/4878] ipv6: fix memory leak in fib6_rule_suppress

commit cdef485217d30382f3bf6448c54b4401648fe3f1 upstream.

The kernel leaks memory when a `fib` rule is present in IPv6 nftables
firewall rules and a suppress_prefix rule is present in the IPv6 routing
rules (used by certain tools such as wg-quick). In such scenarios, every
incoming packet will leak an allocation in `ip6_dst_cache` slab cache.

After some hours of `bpftrace`-ing and source code reading, I tracked
down the issue to ca7a03c41753 ("ipv6: do not free rt if
FIB_LOOKUP_NOREF is set on suppress rule").

The problem with that change is that the generic `args->flags` always have
`FIB_LOOKUP_NOREF` set[1][2] but the IPv6-specific flag
`RT6_LOOKUP_F_DST_NOREF` might not be, leading to `fib6_rule_suppress` not
decreasing the refcount when needed.

How to reproduce:
 - Add the following nftables rule to a prerouting chain:
     meta nfproto ipv6 fib saddr . mark . iif oif missing drop
   This can be done with:
     sudo nft create table inet test
     sudo nft create chain inet test test_chain '{ type filter hook prerouting priority filter + 10; policy accept; }'
     sudo nft add rule inet test test_chain meta nfproto ipv6 fib saddr . mark . iif oif missing drop
 - Run:
     sudo ip -6 rule add table main suppress_prefixlength 0
 - Watch `sudo slabtop -o | grep ip6_dst_cache` to see memory usage increase
   with every incoming ipv6 packet.

This patch exposes the protocol-specific flags to the protocol
specific `suppress` function, and check the protocol-specific `flags`
argument for RT6_LOOKUP_F_DST_NOREF instead of the generic
FIB_LOOKUP_NOREF when decreasing the refcount, like this.

[1]: https://github.com/torvalds/linux/blob/ca7a03c4175366a92cee0ccc4fec0038c3266e26/net/ipv6/fib6_rules.c#L71
[2]: https://github.com/torvalds/linux/blob/ca7a03c4175366a92cee0ccc4fec0038c3266e26/net/ipv6/fib6_rules.c#L99

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215105
Fixes: ca7a03c41753 ("ipv6: do not free rt if FIB_LOOKUP_NOREF is set on suppress rule")
Cc: stable@vger.kernel.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/fib_rules.h | 4 +++-
 net/core/fib_rules.c    | 2 +-
 net/ipv4/fib_rules.c    | 1 +
 net/ipv6/fib6_rules.c   | 4 ++--
 4 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 4b10676c69d19..bd07484ab9dd5 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -69,7 +69,7 @@ struct fib_rules_ops {
 	int			(*action)(struct fib_rule *,
 					  struct flowi *, int,
 					  struct fib_lookup_arg *);
-	bool			(*suppress)(struct fib_rule *,
+	bool			(*suppress)(struct fib_rule *, int,
 					    struct fib_lookup_arg *);
 	int			(*match)(struct fib_rule *,
 					 struct flowi *, int);
@@ -218,7 +218,9 @@ INDIRECT_CALLABLE_DECLARE(int fib4_rule_action(struct fib_rule *rule,
 			    struct fib_lookup_arg *arg));
 
 INDIRECT_CALLABLE_DECLARE(bool fib6_rule_suppress(struct fib_rule *rule,
+						int flags,
 						struct fib_lookup_arg *arg));
 INDIRECT_CALLABLE_DECLARE(bool fib4_rule_suppress(struct fib_rule *rule,
+						int flags,
 						struct fib_lookup_arg *arg));
 #endif
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 9258ffc4ebffc..a6159624eec04 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -323,7 +323,7 @@ jumped:
 		if (!err && ops->suppress && INDIRECT_CALL_MT(ops->suppress,
 							      fib6_rule_suppress,
 							      fib4_rule_suppress,
-							      rule, arg))
+							      rule, flags, arg))
 			continue;
 
 		if (err != -EAGAIN) {
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index ce54a30c2ef1e..364ad3446b2f3 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -141,6 +141,7 @@ INDIRECT_CALLABLE_SCOPE int fib4_rule_action(struct fib_rule *rule,
 }
 
 INDIRECT_CALLABLE_SCOPE bool fib4_rule_suppress(struct fib_rule *rule,
+						int flags,
 						struct fib_lookup_arg *arg)
 {
 	struct fib_result *result = (struct fib_result *) arg->result;
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 8f9a83314de7d..3e4c87b29b115 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -267,6 +267,7 @@ INDIRECT_CALLABLE_SCOPE int fib6_rule_action(struct fib_rule *rule,
 }
 
 INDIRECT_CALLABLE_SCOPE bool fib6_rule_suppress(struct fib_rule *rule,
+						int flags,
 						struct fib_lookup_arg *arg)
 {
 	struct fib6_result *res = arg->result;
@@ -294,8 +295,7 @@ INDIRECT_CALLABLE_SCOPE bool fib6_rule_suppress(struct fib_rule *rule,
 	return false;
 
 suppress_route:
-	if (!(arg->flags & FIB_LOOKUP_NOREF))
-		ip6_rt_put(rt);
+	ip6_rt_put_flags(rt, flags);
 	return true;
 }
 
-- 
GitLab


From 775191dd4c1bcf546ab7ce87f3476537615437b7 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Fri, 12 Nov 2021 15:27:32 -0500
Subject: [PATCH 1922/4878] drm/amd/display: Allow DSC on supported MST branch
 devices

commit 94ebc035456a4ccacfbbef60c444079a256623ad upstream.

[Why]
When trying to lightup two 4k60 non-DSC displays behind a branch device
that supports DSC we can't lightup both at once due to bandwidth
limitations - each requires 48 VCPI slots but we only have 63.

[How]
The workaround already exists in the code but is guarded by a CONFIG
that cannot be set by the user and shouldn't need to be.

Check for specific branch device IDs to device whether to enable
the workaround for multiple display scenarios.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   | 20 +++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 955a055bd9800..d617e98afb76d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -36,6 +36,8 @@
 #include "dm_helpers.h"
 
 #include "dc_link_ddc.h"
+#include "ddc_service_types.h"
+#include "dpcd_defs.h"
 
 #include "i2caux_interface.h"
 #if defined(CONFIG_DEBUG_FS)
@@ -152,6 +154,16 @@ static const struct drm_connector_funcs dm_dp_mst_connector_funcs = {
 };
 
 #if defined(CONFIG_DRM_AMD_DC_DCN)
+static bool needs_dsc_aux_workaround(struct dc_link *link)
+{
+	if (link->dpcd_caps.branch_dev_id == DP_BRANCH_DEVICE_ID_90CC24 &&
+	    (link->dpcd_caps.dpcd_rev.raw == DPCD_REV_14 || link->dpcd_caps.dpcd_rev.raw == DPCD_REV_12) &&
+	    link->dpcd_caps.sink_count.bits.SINK_COUNT >= 2)
+		return true;
+
+	return false;
+}
+
 static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnector)
 {
 	struct dc_sink *dc_sink = aconnector->dc_sink;
@@ -159,7 +171,7 @@ static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnecto
 	u8 dsc_caps[16] = { 0 };
 
 	aconnector->dsc_aux = drm_dp_mst_dsc_aux_for_port(port);
-#if defined(CONFIG_HP_HOOK_WORKAROUND)
+
 	/*
 	 * drm_dp_mst_dsc_aux_for_port() will return NULL for certain configs
 	 * because it only check the dsc/fec caps of the "port variable" and not the dock
@@ -169,10 +181,10 @@ static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnecto
 	 * Workaround: explicitly check the use case above and use the mst dock's aux as dsc_aux
 	 *
 	 */
-
-	if (!aconnector->dsc_aux && !port->parent->port_parent)
+	if (!aconnector->dsc_aux && !port->parent->port_parent &&
+	    needs_dsc_aux_workaround(aconnector->dc_link))
 		aconnector->dsc_aux = &aconnector->mst_port->dm_dp_aux.aux;
-#endif
+
 	if (!aconnector->dsc_aux)
 		return false;
 
-- 
GitLab


From 6a44f200f1f15d041dc381dd13dd840ac36af863 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 4 Nov 2021 00:25:03 +0000
Subject: [PATCH 1923/4878] KVM: Disallow user memslot with size that exceeds
 "unsigned long"

commit 6b285a5587506bae084cf9a3ed5aa491d623b91b upstream.

Reject userspace memslots whose size exceeds the storage capacity of an
"unsigned long".  KVM's uAPI takes the size as u64 to support large slots
on 64-bit hosts, but does not account for the size being truncated on
32-bit hosts in various flows.  The access_ok() check on the userspace
virtual address in particular casts the size to "unsigned long" and will
check the wrong number of bytes.

KVM doesn't actually support slots whose size doesn't fit in an "unsigned
long", e.g. KVM's internal kvm_memory_slot.npages is an "unsigned long",
not a "u64", and misc arch specific code follows that behavior.

Fixes: fa3d315a4ce2 ("KVM: Validate userspace_addr of memslot when registered")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Message-Id: <20211104002531.1176691-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 virt/kvm/kvm_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 57c0c3b18bde7..97ac3c6fd4441 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1297,7 +1297,8 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	id = (u16)mem->slot;
 
 	/* General sanity checks */
-	if (mem->memory_size & (PAGE_SIZE - 1))
+	if ((mem->memory_size & (PAGE_SIZE - 1)) ||
+	    (mem->memory_size != (unsigned long)mem->memory_size))
 		return -EINVAL;
 	if (mem->guest_phys_addr & (PAGE_SIZE - 1))
 		return -EINVAL;
-- 
GitLab


From 7722e88505226d64d7b2158b470e6945ef759832 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 25 Nov 2021 01:49:43 +0000
Subject: [PATCH 1924/4878] KVM: nVMX: Flush current VPID (L1 vs. L2) for
 KVM_REQ_TLB_FLUSH_GUEST

commit 2b4a5a5d56881ece3c66b9a9a8943a6f41bd7349 upstream.

Flush the current VPID when handling KVM_REQ_TLB_FLUSH_GUEST instead of
always flushing vpid01.  Any TLB flush that is triggered when L2 is
active is scoped to L2's VPID (if it has one), e.g. if L2 toggles CR4.PGE
and L1 doesn't intercept PGE writes, then KVM's emulation of the TLB
flush needs to be applied to L2's VPID.

Reported-by: Lai Jiangshan <jiangshanlai+lkml@gmail.com>
Fixes: 07ffaf343e34 ("KVM: nVMX: Sync all PGDs on nested transition with shadow paging")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211125014944.536398-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/vmx.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index baa4244f3e6a1..5b7664d51dc2b 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2908,6 +2908,13 @@ static void vmx_flush_tlb_all(struct kvm_vcpu *vcpu)
 	}
 }
 
+static inline int vmx_get_current_vpid(struct kvm_vcpu *vcpu)
+{
+	if (is_guest_mode(vcpu))
+		return nested_get_vpid02(vcpu);
+	return to_vmx(vcpu)->vpid;
+}
+
 static void vmx_flush_tlb_current(struct kvm_vcpu *vcpu)
 {
 	struct kvm_mmu *mmu = vcpu->arch.mmu;
@@ -2920,31 +2927,29 @@ static void vmx_flush_tlb_current(struct kvm_vcpu *vcpu)
 	if (enable_ept)
 		ept_sync_context(construct_eptp(vcpu, root_hpa,
 						mmu->shadow_root_level));
-	else if (!is_guest_mode(vcpu))
-		vpid_sync_context(to_vmx(vcpu)->vpid);
 	else
-		vpid_sync_context(nested_get_vpid02(vcpu));
+		vpid_sync_context(vmx_get_current_vpid(vcpu));
 }
 
 static void vmx_flush_tlb_gva(struct kvm_vcpu *vcpu, gva_t addr)
 {
 	/*
-	 * vpid_sync_vcpu_addr() is a nop if vmx->vpid==0, see the comment in
+	 * vpid_sync_vcpu_addr() is a nop if vpid==0, see the comment in
 	 * vmx_flush_tlb_guest() for an explanation of why this is ok.
 	 */
-	vpid_sync_vcpu_addr(to_vmx(vcpu)->vpid, addr);
+	vpid_sync_vcpu_addr(vmx_get_current_vpid(vcpu), addr);
 }
 
 static void vmx_flush_tlb_guest(struct kvm_vcpu *vcpu)
 {
 	/*
-	 * vpid_sync_context() is a nop if vmx->vpid==0, e.g. if enable_vpid==0
-	 * or a vpid couldn't be allocated for this vCPU.  VM-Enter and VM-Exit
-	 * are required to flush GVA->{G,H}PA mappings from the TLB if vpid is
+	 * vpid_sync_context() is a nop if vpid==0, e.g. if enable_vpid==0 or a
+	 * vpid couldn't be allocated for this vCPU.  VM-Enter and VM-Exit are
+	 * required to flush GVA->{G,H}PA mappings from the TLB if vpid is
 	 * disabled (VM-Enter with vpid enabled and vpid==0 is disallowed),
 	 * i.e. no explicit INVVPID is necessary.
 	 */
-	vpid_sync_context(to_vmx(vcpu)->vpid);
+	vpid_sync_context(vmx_get_current_vpid(vcpu));
 }
 
 void vmx_ept_load_pdptrs(struct kvm_vcpu *vcpu)
-- 
GitLab


From 5f33887a36824f1e906863460535be5d841a4364 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 22 Nov 2021 19:43:11 -0500
Subject: [PATCH 1925/4878] KVM: x86: Use a stable condition around all VT-d PI
 paths

commit 53b7ca1a359389276c76fbc9e1009d8626a17e40 upstream.

Currently, checks for whether VT-d PI can be used refer to the current
status of the feature in the current vCPU; or they more or less pick
vCPU 0 in case a specific vCPU is not available.

However, these checks do not attempt to synchronize with changes to
the IRTE.  In particular, there is no path that updates the IRTE when
APICv is re-activated on vCPU 0; and there is no path to wakeup a CPU
that has APICv disabled, if the wakeup occurs because of an IRTE
that points to a posted interrupt.

To fix this, always go through the VT-d PI path as long as there are
assigned devices and APICv is available on both the host and the VM side.
Since the relevant condition was copied over three times, take the hint
and factor it into a separate function.

Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Message-Id: <20211123004311.2954158-5-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/posted_intr.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kvm/vmx/posted_intr.c b/arch/x86/kvm/vmx/posted_intr.c
index f02962dcc72cb..fbd9b10354790 100644
--- a/arch/x86/kvm/vmx/posted_intr.c
+++ b/arch/x86/kvm/vmx/posted_intr.c
@@ -5,6 +5,7 @@
 #include <asm/cpu.h>
 
 #include "lapic.h"
+#include "irq.h"
 #include "posted_intr.h"
 #include "trace.h"
 #include "vmx.h"
@@ -77,13 +78,18 @@ after_clear_sn:
 		pi_set_on(pi_desc);
 }
 
+static bool vmx_can_use_vtd_pi(struct kvm *kvm)
+{
+	return irqchip_in_kernel(kvm) && enable_apicv &&
+		kvm_arch_has_assigned_device(kvm) &&
+		irq_remapping_cap(IRQ_POSTING_CAP);
+}
+
 void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu)
 {
 	struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
 
-	if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
-		!irq_remapping_cap(IRQ_POSTING_CAP)  ||
-		!kvm_vcpu_apicv_active(vcpu))
+	if (!vmx_can_use_vtd_pi(vcpu->kvm))
 		return;
 
 	/* Set SN when the vCPU is preempted */
@@ -141,9 +147,7 @@ int pi_pre_block(struct kvm_vcpu *vcpu)
 	struct pi_desc old, new;
 	struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
 
-	if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
-		!irq_remapping_cap(IRQ_POSTING_CAP)  ||
-		!kvm_vcpu_apicv_active(vcpu))
+	if (!vmx_can_use_vtd_pi(vcpu->kvm))
 		return 0;
 
 	WARN_ON(irqs_disabled());
@@ -256,9 +260,7 @@ int pi_update_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq,
 	struct vcpu_data vcpu_info;
 	int idx, ret = 0;
 
-	if (!kvm_arch_has_assigned_device(kvm) ||
-	    !irq_remapping_cap(IRQ_POSTING_CAP) ||
-	    !kvm_vcpu_apicv_active(kvm->vcpus[0]))
+	if (!vmx_can_use_vtd_pi(kvm))
 		return 0;
 
 	idx = srcu_read_lock(&kvm->irq_srcu);
-- 
GitLab


From c71b5f37b5ff1a673b2e4a91d1b34ea027546e23 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 25 Nov 2021 15:20:14 +0000
Subject: [PATCH 1926/4878] KVM: arm64: Avoid setting the upper 32 bits of
 TCR_EL2 and CPTR_EL2 to 1

commit 1f80d15020d7f130194821feb1432b67648c632d upstream.

Having a signed (1 << 31) constant for TCR_EL2_RES1 and CPTR_EL2_TCPAC
causes the upper 32-bit to be set to 1 when assigning them to a 64-bit
variable. Bit 32 in TCR_EL2 is no longer RES0 in ARMv8.7: with FEAT_LPA2
it changes the meaning of bits 49:48 and 9:8 in the stage 1 EL2 page
table entries. As a result of the sign-extension, a non-VHE kernel can
no longer boot on a model with ARMv8.7 enabled.

CPTR_EL2 still has the top 32 bits RES0 but we should preempt any future
problems

Make these top bit constants unsigned as per commit df655b75c43f
("arm64: KVM: Avoid setting the upper 32 bits of VTCR_EL2 to 1").

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Chris January <Chris.January@arm.com>
Cc: <stable@vger.kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211125152014.2806582-1-catalin.marinas@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/kvm_arm.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 395cb22d9f7d3..7f532b2d7bbc6 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -83,7 +83,7 @@
 #define HCR_HOST_VHE_FLAGS (HCR_RW | HCR_TGE | HCR_E2H)
 
 /* TCR_EL2 Registers bits */
-#define TCR_EL2_RES1		((1 << 31) | (1 << 23))
+#define TCR_EL2_RES1		((1U << 31) | (1 << 23))
 #define TCR_EL2_TBI		(1 << 20)
 #define TCR_EL2_PS_SHIFT	16
 #define TCR_EL2_PS_MASK		(7 << TCR_EL2_PS_SHIFT)
@@ -268,7 +268,7 @@
 #define CPTR_EL2_TFP_SHIFT 10
 
 /* Hyp Coprocessor Trap Register */
-#define CPTR_EL2_TCPAC	(1 << 31)
+#define CPTR_EL2_TCPAC	(1U << 31)
 #define CPTR_EL2_TAM	(1 << 30)
 #define CPTR_EL2_TTA	(1 << 20)
 #define CPTR_EL2_TFP	(1 << CPTR_EL2_TFP_SHIFT)
-- 
GitLab


From d4af6d9749512b6f706d7815a06c8efbe61898c9 Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@linux.alibaba.com>
Date: Wed, 24 Nov 2021 20:20:46 +0800
Subject: [PATCH 1927/4878] KVM: X86: Use vcpu->arch.walk_mmu for
 kvm_mmu_invlpg()

commit 05b29633c7a956d5675f5fbba70db0d26aa5e73e upstream.

INVLPG operates on guest virtual address, which are represented by
vcpu->arch.walk_mmu.  In nested virtualization scenarios,
kvm_mmu_invlpg() was using the wrong MMU structure; if L2's invlpg were
emulated by L0 (in practice, it hardly happen) when nested two-dimensional
paging is enabled, the call to ->tlb_flush_gva() would be skipped and
the hardware TLB entry would not be invalidated.

Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20211124122055.64424-5-jiangshanlai@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/mmu/mmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 770d18dc46509..c2516ddc3cbec 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5152,7 +5152,7 @@ EXPORT_SYMBOL_GPL(kvm_mmu_invalidate_gva);
 
 void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva)
 {
-	kvm_mmu_invalidate_gva(vcpu, vcpu->arch.mmu, gva, INVALID_PAGE);
+	kvm_mmu_invalidate_gva(vcpu, vcpu->arch.walk_mmu, gva, INVALID_PAGE);
 	++vcpu->stat.invlpg;
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_invlpg);
-- 
GitLab


From 3d73021f8d74e81b150b2307d26325858d0955aa Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Tue, 30 Nov 2021 12:31:23 -0500
Subject: [PATCH 1928/4878] tracing/histograms: String compares should not care
 about signed values

commit 450fec13d9170127678f991698ac1a5b05c02e2f upstream.

When comparing two strings for the "onmatch" histogram trigger, fields
that are strings use string comparisons, which do not care about being
signed or not.

Do not fail to match two string fields if one is unsigned char array and
the other is a signed char array.

Link: https://lore.kernel.org/all/20211129123043.5cfd687a@gandalf.local.home/

Cc: stable@vgerk.kernel.org
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: Yafang Shao <laoar.shao@gmail.com>
Fixes: b05e89ae7cf3b ("tracing: Accept different type for synthetic event fields")
Reviewed-by: Masami Hiramatsu <mhiramatsu@kernel.org>
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events_hist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index c2ec467a5766b..003e5f37861e3 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -3344,7 +3344,7 @@ static int check_synth_field(struct synth_event *event,
 
 	if (strcmp(field->type, hist_field->type) != 0) {
 		if (field->size != hist_field->size ||
-		    field->is_signed != hist_field->is_signed)
+		    (!field->is_string && field->is_signed != hist_field->is_signed))
 			return -EINVAL;
 	}
 
-- 
GitLab


From 4caf965f6cbecb73e8394ab59310309667e3e8ec Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:21 -0500
Subject: [PATCH 1929/4878] wireguard: selftests: increase default dmesg log
 size

commit 03ff1b1def73f817e196bf96ab36ac259490bd7c upstream.

The selftests currently parse the kernel log at the end to track
potential memory leaks. With these tests now reading off the end of the
buffer, due to recent optimizations, some creation messages were lost,
making the tests think that there was a free without an alloc. Fix this
by increasing the kernel log size.

Fixes: 24b70eeeb4f4 ("wireguard: use synchronize_net rather than synchronize_rcu")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/wireguard/qemu/kernel.config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/wireguard/qemu/kernel.config b/tools/testing/selftests/wireguard/qemu/kernel.config
index 74db83a0aedd8..a9b5a520a1d22 100644
--- a/tools/testing/selftests/wireguard/qemu/kernel.config
+++ b/tools/testing/selftests/wireguard/qemu/kernel.config
@@ -66,6 +66,7 @@ CONFIG_PROC_SYSCTL=y
 CONFIG_SYSFS=y
 CONFIG_TMPFS=y
 CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
+CONFIG_LOG_BUF_SHIFT=18
 CONFIG_PRINTK_TIME=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_LEGACY_VSYSCALL_NONE=y
-- 
GitLab


From 3d1dc3c67773065019e31aca227a58b6234f5e0b Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:20 -0500
Subject: [PATCH 1930/4878] wireguard: allowedips: add missing __rcu annotation
 to satisfy sparse

commit ae9287811ba75571cd69505d50ab0e612ace8572 upstream.

A __rcu annotation got lost during refactoring, which caused sparse to
become enraged.

Fixes: bf7b042dc62a ("wireguard: allowedips: free empty intermediate nodes when removing single node")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireguard/allowedips.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireguard/allowedips.c b/drivers/net/wireguard/allowedips.c
index b7197e80f2264..9a4c8ff32d9dd 100644
--- a/drivers/net/wireguard/allowedips.c
+++ b/drivers/net/wireguard/allowedips.c
@@ -163,7 +163,7 @@ static bool node_placement(struct allowedips_node __rcu *trie, const u8 *key,
 	return exact;
 }
 
-static inline void connect_node(struct allowedips_node **parent, u8 bit, struct allowedips_node *node)
+static inline void connect_node(struct allowedips_node __rcu **parent, u8 bit, struct allowedips_node *node)
 {
 	node->parent_bit_packed = (unsigned long)parent | bit;
 	rcu_assign_pointer(*parent, node);
-- 
GitLab


From 0584bf51c31583352648e78b032f1261084e46dd Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:22 -0500
Subject: [PATCH 1931/4878] wireguard: selftests: actually test for routing
 loops

commit 782c72af567fc2ef09bd7615d0307f24de72c7e0 upstream.

We previously removed the restriction on looping to self, and then added
a test to make sure the kernel didn't blow up during a routing loop. The
kernel didn't blow up, thankfully, but on certain architectures where
skb fragmentation is easier, such as ppc64, the skbs weren't actually
being discarded after a few rounds through. But the test wasn't catching
this. So actually test explicitly for massive increases in tx to see if
we have a routing loop. Note that the actual loop problem will need to
be addressed in a different commit.

Fixes: b673e24aad36 ("wireguard: socket: remove errant restriction on looping to self")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/wireguard/netns.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh
index ebc4ee0fe179f..2e5c1630885eb 100755
--- a/tools/testing/selftests/wireguard/netns.sh
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -276,7 +276,11 @@ n0 ping -W 1 -c 1 192.168.241.2
 n1 wg set wg0 peer "$pub2" endpoint 192.168.241.2:7
 ip2 link del wg0
 ip2 link del wg1
-! n0 ping -W 1 -c 10 -f 192.168.241.2 || false # Should not crash kernel
+read _ _ tx_bytes_before < <(n0 wg show wg1 transfer)
+! n0 ping -W 1 -c 10 -f 192.168.241.2 || false
+sleep 1
+read _ _ tx_bytes_after < <(n0 wg show wg1 transfer)
+(( tx_bytes_after - tx_bytes_before < 70000 ))
 
 ip0 link del wg1
 ip1 link del wg0
-- 
GitLab


From f7b6672fab701765bbfe56d5ee3f1923791cdc45 Mon Sep 17 00:00:00 2001
From: Li Zhijian <lizhijian@cn.fujitsu.com>
Date: Mon, 29 Nov 2021 10:39:24 -0500
Subject: [PATCH 1932/4878] wireguard: selftests: rename DEBUG_PI_LIST to
 DEBUG_PLIST

commit 7e938beb8321d34f040557b8915b228af125f73c upstream.

DEBUG_PI_LIST was renamed to DEBUG_PLIST since 8e18faeac3 ("lib/plist:
rename DEBUG_PI_LIST to DEBUG_PLIST").

Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Fixes: 8e18faeac3e4 ("lib/plist: rename DEBUG_PI_LIST to DEBUG_PLIST")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/wireguard/qemu/debug.config | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/wireguard/qemu/debug.config b/tools/testing/selftests/wireguard/qemu/debug.config
index b50c2085c1ac0..a92c5590e87ca 100644
--- a/tools/testing/selftests/wireguard/qemu/debug.config
+++ b/tools/testing/selftests/wireguard/qemu/debug.config
@@ -48,7 +48,7 @@ CONFIG_DEBUG_ATOMIC_SLEEP=y
 CONFIG_TRACE_IRQFLAGS=y
 CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_LIST=y
-CONFIG_DEBUG_PI_LIST=y
+CONFIG_DEBUG_PLIST=y
 CONFIG_PROVE_RCU=y
 CONFIG_SPARSE_RCU_POINTER=y
 CONFIG_RCU_CPU_STALL_TIMEOUT=21
-- 
GitLab


From e3be118327a1d791d04fcc29742912c2fd3bdbf7 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:25 -0500
Subject: [PATCH 1933/4878] wireguard: device: reset peer src endpoint when
 netns exits
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 20ae1d6aa159eb91a9bf09ff92ccaa94dbea92c2 upstream.

Each peer's endpoint contains a dst_cache entry that takes a reference
to another netdev. When the containing namespace exits, we take down the
socket and prevent future sockets from being created (by setting
creating_net to NULL), which removes that potential reference on the
netns. However, it doesn't release references to the netns that a netdev
cached in dst_cache might be taking, so the netns still might fail to
exit. Since the socket is gimped anyway, we can simply clear all the
dst_caches (by way of clearing the endpoint src), which will release all
references.

However, the current dst_cache_reset function only releases those
references lazily. But it turns out that all of our usages of
wg_socket_clear_peer_endpoint_src are called from contexts that are not
exactly high-speed or bottle-necked. For example, when there's
connection difficulty, or when userspace is reconfiguring the interface.
And in particular for this patch, when the netns is exiting. So for
those cases, it makes more sense to call dst_release immediately. For
that, we add a small helper function to dst_cache.

This patch also adds a test to netns.sh from Hangbin Liu to ensure this
doesn't regress.

Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Reported-by: Xiumei Mu <xmu@redhat.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Fixes: 900575aa33a3 ("wireguard: device: avoid circular netns references")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireguard/device.c             |  3 +++
 drivers/net/wireguard/socket.c             |  2 +-
 include/net/dst_cache.h                    | 11 ++++++++++
 net/core/dst_cache.c                       | 19 +++++++++++++++++
 tools/testing/selftests/wireguard/netns.sh | 24 +++++++++++++++++++++-
 5 files changed, 57 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c
index e01ab0742738a..4699e9736249e 100644
--- a/drivers/net/wireguard/device.c
+++ b/drivers/net/wireguard/device.c
@@ -398,6 +398,7 @@ static struct rtnl_link_ops link_ops __read_mostly = {
 static void wg_netns_pre_exit(struct net *net)
 {
 	struct wg_device *wg;
+	struct wg_peer *peer;
 
 	rtnl_lock();
 	list_for_each_entry(wg, &device_list, device_list) {
@@ -407,6 +408,8 @@ static void wg_netns_pre_exit(struct net *net)
 			mutex_lock(&wg->device_update_lock);
 			rcu_assign_pointer(wg->creating_net, NULL);
 			wg_socket_reinit(wg, NULL, NULL);
+			list_for_each_entry(peer, &wg->peer_list, peer_list)
+				wg_socket_clear_peer_endpoint_src(peer);
 			mutex_unlock(&wg->device_update_lock);
 		}
 	}
diff --git a/drivers/net/wireguard/socket.c b/drivers/net/wireguard/socket.c
index c8cd385d233b6..52b9bc83abcbc 100644
--- a/drivers/net/wireguard/socket.c
+++ b/drivers/net/wireguard/socket.c
@@ -308,7 +308,7 @@ void wg_socket_clear_peer_endpoint_src(struct wg_peer *peer)
 {
 	write_lock_bh(&peer->endpoint_lock);
 	memset(&peer->endpoint.src6, 0, sizeof(peer->endpoint.src6));
-	dst_cache_reset(&peer->endpoint_cache);
+	dst_cache_reset_now(&peer->endpoint_cache);
 	write_unlock_bh(&peer->endpoint_lock);
 }
 
diff --git a/include/net/dst_cache.h b/include/net/dst_cache.h
index 67634675e9197..df6622a5fe98f 100644
--- a/include/net/dst_cache.h
+++ b/include/net/dst_cache.h
@@ -79,6 +79,17 @@ static inline void dst_cache_reset(struct dst_cache *dst_cache)
 	dst_cache->reset_ts = jiffies;
 }
 
+/**
+ *	dst_cache_reset_now - invalidate the cache contents immediately
+ *	@dst_cache: the cache
+ *
+ *	The caller must be sure there are no concurrent users, as this frees
+ *	all dst_cache users immediately, rather than waiting for the next
+ *	per-cpu usage like dst_cache_reset does. Most callers should use the
+ *	higher speed lazily-freed dst_cache_reset function instead.
+ */
+void dst_cache_reset_now(struct dst_cache *dst_cache);
+
 /**
  *	dst_cache_init - initialize the cache, allocating the required storage
  *	@dst_cache: the cache
diff --git a/net/core/dst_cache.c b/net/core/dst_cache.c
index be74ab4551c20..0ccfd5fa5cb9b 100644
--- a/net/core/dst_cache.c
+++ b/net/core/dst_cache.c
@@ -162,3 +162,22 @@ void dst_cache_destroy(struct dst_cache *dst_cache)
 	free_percpu(dst_cache->cache);
 }
 EXPORT_SYMBOL_GPL(dst_cache_destroy);
+
+void dst_cache_reset_now(struct dst_cache *dst_cache)
+{
+	int i;
+
+	if (!dst_cache->cache)
+		return;
+
+	dst_cache->reset_ts = jiffies;
+	for_each_possible_cpu(i) {
+		struct dst_cache_pcpu *idst = per_cpu_ptr(dst_cache->cache, i);
+		struct dst_entry *dst = idst->dst;
+
+		idst->cookie = 0;
+		idst->dst = NULL;
+		dst_release(dst);
+	}
+}
+EXPORT_SYMBOL_GPL(dst_cache_reset_now);
diff --git a/tools/testing/selftests/wireguard/netns.sh b/tools/testing/selftests/wireguard/netns.sh
index 2e5c1630885eb..8a9461aa0878a 100755
--- a/tools/testing/selftests/wireguard/netns.sh
+++ b/tools/testing/selftests/wireguard/netns.sh
@@ -613,6 +613,28 @@ ip0 link set wg0 up
 kill $ncat_pid
 ip0 link del wg0
 
+# Ensure that dst_cache references don't outlive netns lifetime
+ip1 link add dev wg0 type wireguard
+ip2 link add dev wg0 type wireguard
+configure_peers
+ip1 link add veth1 type veth peer name veth2
+ip1 link set veth2 netns $netns2
+ip1 addr add fd00:aa::1/64 dev veth1
+ip2 addr add fd00:aa::2/64 dev veth2
+ip1 link set veth1 up
+ip2 link set veth2 up
+waitiface $netns1 veth1
+waitiface $netns2 veth2
+ip1 -6 route add default dev veth1 via fd00:aa::2
+ip2 -6 route add default dev veth2 via fd00:aa::1
+n1 wg set wg0 peer "$pub2" endpoint [fd00:aa::2]:2
+n2 wg set wg0 peer "$pub1" endpoint [fd00:aa::1]:1
+n1 ping6 -c 1 fd00::2
+pp ip netns delete $netns1
+pp ip netns delete $netns2
+pp ip netns add $netns1
+pp ip netns add $netns2
+
 # Ensure there aren't circular reference loops
 ip1 link add wg1 type wireguard
 ip2 link add wg2 type wireguard
@@ -631,7 +653,7 @@ while read -t 0.1 -r line 2>/dev/null || [[ $? -ne 142 ]]; do
 done < /dev/kmsg
 alldeleted=1
 for object in "${!objects[@]}"; do
-	if [[ ${objects["$object"]} != *createddestroyed ]]; then
+	if [[ ${objects["$object"]} != *createddestroyed && ${objects["$object"]} != *createdcreateddestroyeddestroyed ]]; then
 		echo "Error: $object: merely ${objects["$object"]}" >&3
 		alldeleted=0
 	fi
-- 
GitLab


From 8a29a50dbdb11052cfcbe5ca4fe497e5f41129ed Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:26 -0500
Subject: [PATCH 1934/4878] wireguard: receive: use ring buffer for incoming
 handshakes

commit 886fcee939adb5e2af92741b90643a59f2b54f97 upstream.

Apparently the spinlock on incoming_handshake's skb_queue is highly
contended, and a torrent of handshake or cookie packets can bring the
data plane to its knees, simply by virtue of enqueueing the handshake
packets to be processed asynchronously. So, we try switching this to a
ring buffer to hopefully have less lock contention. This alleviates the
problem somewhat, though it still isn't perfect, so future patches will
have to improve this further. However, it at least doesn't completely
diminish the data plane.

Reported-by: Streun Fabio <fstreun@student.ethz.ch>
Reported-by: Joel Wanner <joel.wanner@inf.ethz.ch>
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireguard/device.c   | 36 ++++++++++++++++----------------
 drivers/net/wireguard/device.h   |  9 +++-----
 drivers/net/wireguard/queueing.c |  6 +++---
 drivers/net/wireguard/queueing.h |  2 +-
 drivers/net/wireguard/receive.c  | 27 +++++++++++-------------
 5 files changed, 37 insertions(+), 43 deletions(-)

diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c
index 4699e9736249e..e189eb95678d8 100644
--- a/drivers/net/wireguard/device.c
+++ b/drivers/net/wireguard/device.c
@@ -98,6 +98,7 @@ static int wg_stop(struct net_device *dev)
 {
 	struct wg_device *wg = netdev_priv(dev);
 	struct wg_peer *peer;
+	struct sk_buff *skb;
 
 	mutex_lock(&wg->device_update_lock);
 	list_for_each_entry(peer, &wg->peer_list, peer_list) {
@@ -108,7 +109,9 @@ static int wg_stop(struct net_device *dev)
 		wg_noise_reset_last_sent_handshake(&peer->last_sent_handshake);
 	}
 	mutex_unlock(&wg->device_update_lock);
-	skb_queue_purge(&wg->incoming_handshakes);
+	while ((skb = ptr_ring_consume(&wg->handshake_queue.ring)) != NULL)
+		kfree_skb(skb);
+	atomic_set(&wg->handshake_queue_len, 0);
 	wg_socket_reinit(wg, NULL, NULL);
 	return 0;
 }
@@ -235,14 +238,13 @@ static void wg_destruct(struct net_device *dev)
 	destroy_workqueue(wg->handshake_receive_wq);
 	destroy_workqueue(wg->handshake_send_wq);
 	destroy_workqueue(wg->packet_crypt_wq);
-	wg_packet_queue_free(&wg->decrypt_queue);
-	wg_packet_queue_free(&wg->encrypt_queue);
+	wg_packet_queue_free(&wg->handshake_queue, true);
+	wg_packet_queue_free(&wg->decrypt_queue, false);
+	wg_packet_queue_free(&wg->encrypt_queue, false);
 	rcu_barrier(); /* Wait for all the peers to be actually freed. */
 	wg_ratelimiter_uninit();
 	memzero_explicit(&wg->static_identity, sizeof(wg->static_identity));
-	skb_queue_purge(&wg->incoming_handshakes);
 	free_percpu(dev->tstats);
-	free_percpu(wg->incoming_handshakes_worker);
 	kvfree(wg->index_hashtable);
 	kvfree(wg->peer_hashtable);
 	mutex_unlock(&wg->device_update_lock);
@@ -298,7 +300,6 @@ static int wg_newlink(struct net *src_net, struct net_device *dev,
 	init_rwsem(&wg->static_identity.lock);
 	mutex_init(&wg->socket_update_lock);
 	mutex_init(&wg->device_update_lock);
-	skb_queue_head_init(&wg->incoming_handshakes);
 	wg_allowedips_init(&wg->peer_allowedips);
 	wg_cookie_checker_init(&wg->cookie_checker, wg);
 	INIT_LIST_HEAD(&wg->peer_list);
@@ -316,16 +317,10 @@ static int wg_newlink(struct net *src_net, struct net_device *dev,
 	if (!dev->tstats)
 		goto err_free_index_hashtable;
 
-	wg->incoming_handshakes_worker =
-		wg_packet_percpu_multicore_worker_alloc(
-				wg_packet_handshake_receive_worker, wg);
-	if (!wg->incoming_handshakes_worker)
-		goto err_free_tstats;
-
 	wg->handshake_receive_wq = alloc_workqueue("wg-kex-%s",
 			WQ_CPU_INTENSIVE | WQ_FREEZABLE, 0, dev->name);
 	if (!wg->handshake_receive_wq)
-		goto err_free_incoming_handshakes;
+		goto err_free_tstats;
 
 	wg->handshake_send_wq = alloc_workqueue("wg-kex-%s",
 			WQ_UNBOUND | WQ_FREEZABLE, 0, dev->name);
@@ -347,10 +342,15 @@ static int wg_newlink(struct net *src_net, struct net_device *dev,
 	if (ret < 0)
 		goto err_free_encrypt_queue;
 
-	ret = wg_ratelimiter_init();
+	ret = wg_packet_queue_init(&wg->handshake_queue, wg_packet_handshake_receive_worker,
+				   MAX_QUEUED_INCOMING_HANDSHAKES);
 	if (ret < 0)
 		goto err_free_decrypt_queue;
 
+	ret = wg_ratelimiter_init();
+	if (ret < 0)
+		goto err_free_handshake_queue;
+
 	ret = register_netdevice(dev);
 	if (ret < 0)
 		goto err_uninit_ratelimiter;
@@ -367,18 +367,18 @@ static int wg_newlink(struct net *src_net, struct net_device *dev,
 
 err_uninit_ratelimiter:
 	wg_ratelimiter_uninit();
+err_free_handshake_queue:
+	wg_packet_queue_free(&wg->handshake_queue, false);
 err_free_decrypt_queue:
-	wg_packet_queue_free(&wg->decrypt_queue);
+	wg_packet_queue_free(&wg->decrypt_queue, false);
 err_free_encrypt_queue:
-	wg_packet_queue_free(&wg->encrypt_queue);
+	wg_packet_queue_free(&wg->encrypt_queue, false);
 err_destroy_packet_crypt:
 	destroy_workqueue(wg->packet_crypt_wq);
 err_destroy_handshake_send:
 	destroy_workqueue(wg->handshake_send_wq);
 err_destroy_handshake_receive:
 	destroy_workqueue(wg->handshake_receive_wq);
-err_free_incoming_handshakes:
-	free_percpu(wg->incoming_handshakes_worker);
 err_free_tstats:
 	free_percpu(dev->tstats);
 err_free_index_hashtable:
diff --git a/drivers/net/wireguard/device.h b/drivers/net/wireguard/device.h
index 854bc3d97150e..43c7cebbf50b0 100644
--- a/drivers/net/wireguard/device.h
+++ b/drivers/net/wireguard/device.h
@@ -39,21 +39,18 @@ struct prev_queue {
 
 struct wg_device {
 	struct net_device *dev;
-	struct crypt_queue encrypt_queue, decrypt_queue;
+	struct crypt_queue encrypt_queue, decrypt_queue, handshake_queue;
 	struct sock __rcu *sock4, *sock6;
 	struct net __rcu *creating_net;
 	struct noise_static_identity static_identity;
-	struct workqueue_struct *handshake_receive_wq, *handshake_send_wq;
-	struct workqueue_struct *packet_crypt_wq;
-	struct sk_buff_head incoming_handshakes;
-	int incoming_handshake_cpu;
-	struct multicore_worker __percpu *incoming_handshakes_worker;
+	struct workqueue_struct *packet_crypt_wq,*handshake_receive_wq, *handshake_send_wq;
 	struct cookie_checker cookie_checker;
 	struct pubkey_hashtable *peer_hashtable;
 	struct index_hashtable *index_hashtable;
 	struct allowedips peer_allowedips;
 	struct mutex device_update_lock, socket_update_lock;
 	struct list_head device_list, peer_list;
+	atomic_t handshake_queue_len;
 	unsigned int num_peers, device_update_gen;
 	u32 fwmark;
 	u16 incoming_port;
diff --git a/drivers/net/wireguard/queueing.c b/drivers/net/wireguard/queueing.c
index 48e7b982a3073..1de413b19e342 100644
--- a/drivers/net/wireguard/queueing.c
+++ b/drivers/net/wireguard/queueing.c
@@ -38,11 +38,11 @@ int wg_packet_queue_init(struct crypt_queue *queue, work_func_t function,
 	return 0;
 }
 
-void wg_packet_queue_free(struct crypt_queue *queue)
+void wg_packet_queue_free(struct crypt_queue *queue, bool purge)
 {
 	free_percpu(queue->worker);
-	WARN_ON(!__ptr_ring_empty(&queue->ring));
-	ptr_ring_cleanup(&queue->ring, NULL);
+	WARN_ON(!purge && !__ptr_ring_empty(&queue->ring));
+	ptr_ring_cleanup(&queue->ring, purge ? (void(*)(void*))kfree_skb : NULL);
 }
 
 #define NEXT(skb) ((skb)->prev)
diff --git a/drivers/net/wireguard/queueing.h b/drivers/net/wireguard/queueing.h
index 4ef2944a68bc9..e2388107f7fdc 100644
--- a/drivers/net/wireguard/queueing.h
+++ b/drivers/net/wireguard/queueing.h
@@ -23,7 +23,7 @@ struct sk_buff;
 /* queueing.c APIs: */
 int wg_packet_queue_init(struct crypt_queue *queue, work_func_t function,
 			 unsigned int len);
-void wg_packet_queue_free(struct crypt_queue *queue);
+void wg_packet_queue_free(struct crypt_queue *queue, bool purge);
 struct multicore_worker __percpu *
 wg_packet_percpu_multicore_worker_alloc(work_func_t function, void *ptr);
 
diff --git a/drivers/net/wireguard/receive.c b/drivers/net/wireguard/receive.c
index 7dc84bcca2613..f4e537e3e8ec6 100644
--- a/drivers/net/wireguard/receive.c
+++ b/drivers/net/wireguard/receive.c
@@ -116,8 +116,8 @@ static void wg_receive_handshake_packet(struct wg_device *wg,
 		return;
 	}
 
-	under_load = skb_queue_len(&wg->incoming_handshakes) >=
-		     MAX_QUEUED_INCOMING_HANDSHAKES / 8;
+	under_load = atomic_read(&wg->handshake_queue_len) >=
+			MAX_QUEUED_INCOMING_HANDSHAKES / 8;
 	if (under_load) {
 		last_under_load = ktime_get_coarse_boottime_ns();
 	} else if (last_under_load) {
@@ -212,13 +212,14 @@ static void wg_receive_handshake_packet(struct wg_device *wg,
 
 void wg_packet_handshake_receive_worker(struct work_struct *work)
 {
-	struct wg_device *wg = container_of(work, struct multicore_worker,
-					    work)->ptr;
+	struct crypt_queue *queue = container_of(work, struct multicore_worker, work)->ptr;
+	struct wg_device *wg = container_of(queue, struct wg_device, handshake_queue);
 	struct sk_buff *skb;
 
-	while ((skb = skb_dequeue(&wg->incoming_handshakes)) != NULL) {
+	while ((skb = ptr_ring_consume_bh(&queue->ring)) != NULL) {
 		wg_receive_handshake_packet(wg, skb);
 		dev_kfree_skb(skb);
+		atomic_dec(&wg->handshake_queue_len);
 		cond_resched();
 	}
 }
@@ -554,21 +555,17 @@ void wg_packet_receive(struct wg_device *wg, struct sk_buff *skb)
 	case cpu_to_le32(MESSAGE_HANDSHAKE_RESPONSE):
 	case cpu_to_le32(MESSAGE_HANDSHAKE_COOKIE): {
 		int cpu;
-
-		if (skb_queue_len(&wg->incoming_handshakes) >
-			    MAX_QUEUED_INCOMING_HANDSHAKES ||
-		    unlikely(!rng_is_initialized())) {
+		if (unlikely(!rng_is_initialized() ||
+			     ptr_ring_produce_bh(&wg->handshake_queue.ring, skb))) {
 			net_dbg_skb_ratelimited("%s: Dropping handshake packet from %pISpfsc\n",
 						wg->dev->name, skb);
 			goto err;
 		}
-		skb_queue_tail(&wg->incoming_handshakes, skb);
-		/* Queues up a call to packet_process_queued_handshake_
-		 * packets(skb):
-		 */
-		cpu = wg_cpumask_next_online(&wg->incoming_handshake_cpu);
+		atomic_inc(&wg->handshake_queue_len);
+		cpu = wg_cpumask_next_online(&wg->handshake_queue.last_cpu);
+		/* Queues up a call to packet_process_queued_handshake_packets(skb): */
 		queue_work_on(cpu, wg->handshake_receive_wq,
-			&per_cpu_ptr(wg->incoming_handshakes_worker, cpu)->work);
+			      &per_cpu_ptr(wg->handshake_queue.worker, cpu)->work);
 		break;
 	}
 	case cpu_to_le32(MESSAGE_DATA):
-- 
GitLab


From cb2d7c1992cb7019499831abf0f32759905bc248 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Mon, 29 Nov 2021 10:39:27 -0500
Subject: [PATCH 1935/4878] wireguard: receive: drop handshakes if queue lock
 is contended

commit fb32f4f606c17b869805d7cede8b03d78339b50a upstream.

If we're being delivered packets from multiple CPUs so quickly that the
ring lock is contended for CPU tries, then it's safe to assume that the
queue is near capacity anyway, so just drop the packet rather than
spinning. This helps deal with multicore DoS that can interfere with
data path performance. It _still_ does not completely fix the issue, but
it again chips away at it.

Reported-by: Streun Fabio <fstreun@student.ethz.ch>
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireguard/receive.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireguard/receive.c b/drivers/net/wireguard/receive.c
index f4e537e3e8ec6..7b8df406c7737 100644
--- a/drivers/net/wireguard/receive.c
+++ b/drivers/net/wireguard/receive.c
@@ -554,9 +554,19 @@ void wg_packet_receive(struct wg_device *wg, struct sk_buff *skb)
 	case cpu_to_le32(MESSAGE_HANDSHAKE_INITIATION):
 	case cpu_to_le32(MESSAGE_HANDSHAKE_RESPONSE):
 	case cpu_to_le32(MESSAGE_HANDSHAKE_COOKIE): {
-		int cpu;
-		if (unlikely(!rng_is_initialized() ||
-			     ptr_ring_produce_bh(&wg->handshake_queue.ring, skb))) {
+		int cpu, ret = -EBUSY;
+
+		if (unlikely(!rng_is_initialized()))
+			goto drop;
+		if (atomic_read(&wg->handshake_queue_len) > MAX_QUEUED_INCOMING_HANDSHAKES / 2) {
+			if (spin_trylock_bh(&wg->handshake_queue.ring.producer_lock)) {
+				ret = __ptr_ring_produce(&wg->handshake_queue.ring, skb);
+				spin_unlock_bh(&wg->handshake_queue.ring.producer_lock);
+			}
+		} else
+			ret = ptr_ring_produce_bh(&wg->handshake_queue.ring, skb);
+		if (ret) {
+	drop:
 			net_dbg_skb_ratelimited("%s: Dropping handshake packet from %pISpfsc\n",
 						wg->dev->name, skb);
 			goto err;
-- 
GitLab


From 1c75779dd90c727d1a7fdb65a330e1f5dd05dbbb Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Date: Mon, 29 Nov 2021 10:39:28 -0500
Subject: [PATCH 1936/4878] wireguard: ratelimiter: use kvcalloc() instead of
 kvzalloc()

commit 4e3fd721710553832460c179c2ee5ce67ef7f1e0 upstream.

Use 2-factor argument form kvcalloc() instead of kvzalloc().

Link: https://github.com/KSPP/linux/issues/162
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
[Jason: Gustavo's link above is for KSPP, but this isn't actually a
 security fix, as table_size is bounded to 8192 anyway, and gcc realizes
 this, so the codegen comes out to be about the same.]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireguard/ratelimiter.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireguard/ratelimiter.c b/drivers/net/wireguard/ratelimiter.c
index 3fedd1d21f5ee..dd55e5c26f468 100644
--- a/drivers/net/wireguard/ratelimiter.c
+++ b/drivers/net/wireguard/ratelimiter.c
@@ -176,12 +176,12 @@ int wg_ratelimiter_init(void)
 			(1U << 14) / sizeof(struct hlist_head)));
 	max_entries = table_size * 8;
 
-	table_v4 = kvzalloc(table_size * sizeof(*table_v4), GFP_KERNEL);
+	table_v4 = kvcalloc(table_size, sizeof(*table_v4), GFP_KERNEL);
 	if (unlikely(!table_v4))
 		goto err_kmemcache;
 
 #if IS_ENABLED(CONFIG_IPV6)
-	table_v6 = kvzalloc(table_size * sizeof(*table_v6), GFP_KERNEL);
+	table_v6 = kvcalloc(table_size, sizeof(*table_v6), GFP_KERNEL);
 	if (unlikely(!table_v6)) {
 		kvfree(table_v4);
 		goto err_kmemcache;
-- 
GitLab


From 8de6ea757c885800baab0bd64316a81a5ccc3aa3 Mon Sep 17 00:00:00 2001
From: Alain Volmat <alain.volmat@foss.st.com>
Date: Mon, 20 Sep 2021 17:21:29 +0200
Subject: [PATCH 1937/4878] i2c: stm32f7: flush TX FIFO upon transfer errors

commit 0c21d02ca469574d2082379db52d1a27b99eed0c upstream.

While handling an error during transfer (ex: NACK), it could
happen that the driver has already written data into TXDR
before the transfer get stopped.
This commit add TXDR Flush after end of transfer in case of error to
avoid sending a wrong data on any other slave upon next transfer.

Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-stm32f7.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 1e800b65e20a0..967193c348170 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -1665,6 +1665,16 @@ static int stm32f7_i2c_xfer(struct i2c_adapter *i2c_adap,
 	time_left = wait_for_completion_timeout(&i2c_dev->complete,
 						i2c_dev->adap.timeout);
 	ret = f7_msg->result;
+	if (ret) {
+		/*
+		 * It is possible that some unsent data have already been
+		 * written into TXDR. To avoid sending old data in a
+		 * further transfer, flush TXDR in case of any error
+		 */
+		writel_relaxed(STM32F7_I2C_ISR_TXE,
+			       i2c_dev->base + STM32F7_I2C_ISR);
+		goto pm_free;
+	}
 
 	if (!time_left) {
 		dev_dbg(i2c_dev->dev, "Access to slave 0x%x timed out\n",
@@ -1713,8 +1723,16 @@ static int stm32f7_i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
 	timeout = wait_for_completion_timeout(&i2c_dev->complete,
 					      i2c_dev->adap.timeout);
 	ret = f7_msg->result;
-	if (ret)
+	if (ret) {
+		/*
+		 * It is possible that some unsent data have already been
+		 * written into TXDR. To avoid sending old data in a
+		 * further transfer, flush TXDR in case of any error
+		 */
+		writel_relaxed(STM32F7_I2C_ISR_TXE,
+			       i2c_dev->base + STM32F7_I2C_ISR);
 		goto pm_free;
+	}
 
 	if (!timeout) {
 		dev_dbg(dev, "Access to slave 0x%x timed out\n", f7_msg->addr);
-- 
GitLab


From c221244917528397295848a16b9708d2c335afc9 Mon Sep 17 00:00:00 2001
From: Alain Volmat <alain.volmat@foss.st.com>
Date: Mon, 20 Sep 2021 17:21:30 +0200
Subject: [PATCH 1938/4878] i2c: stm32f7: recover the bus on access timeout

commit b933d1faf8fa30d16171bcff404e39c41b2a7c84 upstream.

When getting an access timeout, ensure that the bus is in a proper
state prior to returning the error.

Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-stm32f7.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 967193c348170..5fdaae27dfc9e 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -1681,6 +1681,7 @@ static int stm32f7_i2c_xfer(struct i2c_adapter *i2c_adap,
 			i2c_dev->msg->addr);
 		if (i2c_dev->use_dma)
 			dmaengine_terminate_all(dma->chan_using);
+		stm32f7_i2c_wait_free_bus(i2c_dev);
 		ret = -ETIMEDOUT;
 	}
 
@@ -1738,6 +1739,7 @@ static int stm32f7_i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
 		dev_dbg(dev, "Access to slave 0x%x timed out\n", f7_msg->addr);
 		if (i2c_dev->use_dma)
 			dmaengine_terminate_all(dma->chan_using);
+		stm32f7_i2c_wait_free_bus(i2c_dev);
 		ret = -ETIMEDOUT;
 		goto pm_free;
 	}
-- 
GitLab


From 58d5c53f258986401a4f49c24343bb39d65b8f85 Mon Sep 17 00:00:00 2001
From: Alain Volmat <alain.volmat@foss.st.com>
Date: Mon, 20 Sep 2021 17:21:31 +0200
Subject: [PATCH 1939/4878] i2c: stm32f7: stop dma transfer in case of NACK

commit 31b90a95ccbbb4b628578ac17e3b3cc8eeacfe31 upstream.

In case of receiving a NACK, the dma transfer should be stopped
to avoid feeding data into the FIFO.
Also ensure to properly return the proper error code and avoid
waiting for the end of the dma completion in case of
error happening during the transmission.

Fixes: 7ecc8cfde553 ("i2c: i2c-stm32f7: Add DMA support")
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-stm32f7.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 5fdaae27dfc9e..0f4c0282028b0 100644
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -1472,6 +1472,7 @@ static irqreturn_t stm32f7_i2c_isr_event(int irq, void *data)
 {
 	struct stm32f7_i2c_dev *i2c_dev = data;
 	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	struct stm32_i2c_dma *dma = i2c_dev->dma;
 	void __iomem *base = i2c_dev->base;
 	u32 status, mask;
 	int ret = IRQ_HANDLED;
@@ -1497,6 +1498,10 @@ static irqreturn_t stm32f7_i2c_isr_event(int irq, void *data)
 		dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n",
 			__func__, f7_msg->addr);
 		writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR);
+		if (i2c_dev->use_dma) {
+			stm32f7_i2c_disable_dma_req(i2c_dev);
+			dmaengine_terminate_all(dma->chan_using);
+		}
 		f7_msg->result = -ENXIO;
 	}
 
@@ -1512,7 +1517,7 @@ static irqreturn_t stm32f7_i2c_isr_event(int irq, void *data)
 		/* Clear STOP flag */
 		writel_relaxed(STM32F7_I2C_ICR_STOPCF, base + STM32F7_I2C_ICR);
 
-		if (i2c_dev->use_dma) {
+		if (i2c_dev->use_dma && !f7_msg->result) {
 			ret = IRQ_WAKE_THREAD;
 		} else {
 			i2c_dev->master_mode = false;
@@ -1525,7 +1530,7 @@ static irqreturn_t stm32f7_i2c_isr_event(int irq, void *data)
 		if (f7_msg->stop) {
 			mask = STM32F7_I2C_CR2_STOP;
 			stm32f7_i2c_set_bits(base + STM32F7_I2C_CR2, mask);
-		} else if (i2c_dev->use_dma) {
+		} else if (i2c_dev->use_dma && !f7_msg->result) {
 			ret = IRQ_WAKE_THREAD;
 		} else if (f7_msg->smbus) {
 			stm32f7_i2c_smbus_rep_start(i2c_dev);
-- 
GitLab


From 289ee320b5ed5ac91954bd96133480a3e629bb14 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sat, 27 Nov 2021 21:42:14 +0200
Subject: [PATCH 1940/4878] i2c: cbus-gpio: set atomic transfer callback

commit b12764695c3fcade145890b67f82f8b139174cc7 upstream.

CBUS transfers have always been atomic, but after commit 63b96983a5dd
("i2c: core: introduce callbacks for atomic transfers") we started to see
warnings during e.g. poweroff as the atomic callback is not explicitly set.
Fix that.

Fixes the following WARNING seen during Nokia N810 power down:

[  786.570617] reboot: Power down
[  786.573913] ------------[ cut here ]------------
[  786.578826] WARNING: CPU: 0 PID: 672 at drivers/i2c/i2c-core.h:40 i2c_smbus_xfer+0x100/0x110
[  786.587799] No atomic I2C transfer handler for 'i2c-2'

Fixes: 63b96983a5dd ("i2c: core: introduce callbacks for atomic transfers")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-cbus-gpio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-cbus-gpio.c b/drivers/i2c/busses/i2c-cbus-gpio.c
index 72df563477b1c..f8639a4457d23 100644
--- a/drivers/i2c/busses/i2c-cbus-gpio.c
+++ b/drivers/i2c/busses/i2c-cbus-gpio.c
@@ -195,8 +195,9 @@ static u32 cbus_i2c_func(struct i2c_adapter *adapter)
 }
 
 static const struct i2c_algorithm cbus_i2c_algo = {
-	.smbus_xfer	= cbus_i2c_smbus_xfer,
-	.functionality	= cbus_i2c_func,
+	.smbus_xfer		= cbus_i2c_smbus_xfer,
+	.smbus_xfer_atomic	= cbus_i2c_smbus_xfer,
+	.functionality		= cbus_i2c_func,
 };
 
 static int cbus_i2c_remove(struct platform_device *pdev)
-- 
GitLab


From aa6c393a3c3ff0d7db8df00387ed1ad7636e2301 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 29 Nov 2021 22:39:47 -0800
Subject: [PATCH 1941/4878] natsemi: xtensa: fix section mismatch warnings

commit b0f38e15979fa8851e88e8aa371367f264e7b6e9 upstream.

Fix section mismatch warnings in xtsonic. The first one appears to be
bogus and after fixing the second one, the first one is gone.

WARNING: modpost: vmlinux.o(.text+0x529adc): Section mismatch in reference from the function sonic_get_stats() to the function .init.text:set_reset_devices()
The function sonic_get_stats() references
the function __init set_reset_devices().
This is often because sonic_get_stats lacks a __init
annotation or the annotation of set_reset_devices is wrong.

WARNING: modpost: vmlinux.o(.text+0x529b3b): Section mismatch in reference from the function xtsonic_probe() to the function .init.text:sonic_probe1()
The function xtsonic_probe() references
the function __init sonic_probe1().
This is often because xtsonic_probe lacks a __init
annotation or the annotation of sonic_probe1 is wrong.

Fixes: 74f2a5f0ef64 ("xtensa: Add support for the Sonic Ethernet device for the XT2000 board.")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Chris Zankel <chris@zankel.net>
Cc: linux-xtensa@linux-xtensa.org
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/r/20211130063947.7529-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/natsemi/xtsonic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c
index 28d9e98db81a8..33f0014b3c4bb 100644
--- a/drivers/net/ethernet/natsemi/xtsonic.c
+++ b/drivers/net/ethernet/natsemi/xtsonic.c
@@ -120,7 +120,7 @@ static const struct net_device_ops xtsonic_netdev_ops = {
 	.ndo_set_mac_address	= eth_mac_addr,
 };
 
-static int __init sonic_probe1(struct net_device *dev)
+static int sonic_probe1(struct net_device *dev)
 {
 	unsigned int silicon_revision;
 	struct sonic_local *lp = netdev_priv(dev);
-- 
GitLab


From c6f340a331fb72e5ac23a083de9c780e132ca3ae Mon Sep 17 00:00:00 2001
From: Paolo Abeni <pabeni@redhat.com>
Date: Fri, 26 Nov 2021 19:34:21 +0100
Subject: [PATCH 1942/4878] tcp: fix page frag corruption on page fault

commit dacb5d8875cc6cd3a553363b4d6f06760fcbe70c upstream.

Steffen reported a TCP stream corruption for HTTP requests
served by the apache web-server using a cifs mount-point
and memory mapping the relevant file.

The root cause is quite similar to the one addressed by
commit 20eb4f29b602 ("net: fix sk_page_frag() recursion from
memory reclaim"). Here the nested access to the task page frag
is caused by a page fault on the (mmapped) user-space memory
buffer coming from the cifs file.

The page fault handler performs an smb transaction on a different
socket, inside the same process context. Since sk->sk_allaction
for such socket does not prevent the usage for the task_frag,
the nested allocation modify "under the hood" the page frag
in use by the outer sendmsg call, corrupting the stream.

The overall relevant stack trace looks like the following:

httpd 78268 [001] 3461630.850950:      probe:tcp_sendmsg_locked:
        ffffffff91461d91 tcp_sendmsg_locked+0x1
        ffffffff91462b57 tcp_sendmsg+0x27
        ffffffff9139814e sock_sendmsg+0x3e
        ffffffffc06dfe1d smb_send_kvec+0x28
        [...]
        ffffffffc06cfaf8 cifs_readpages+0x213
        ffffffff90e83c4b read_pages+0x6b
        ffffffff90e83f31 __do_page_cache_readahead+0x1c1
        ffffffff90e79e98 filemap_fault+0x788
        ffffffff90eb0458 __do_fault+0x38
        ffffffff90eb5280 do_fault+0x1a0
        ffffffff90eb7c84 __handle_mm_fault+0x4d4
        ffffffff90eb8093 handle_mm_fault+0xc3
        ffffffff90c74f6d __do_page_fault+0x1ed
        ffffffff90c75277 do_page_fault+0x37
        ffffffff9160111e page_fault+0x1e
        ffffffff9109e7b5 copyin+0x25
        ffffffff9109eb40 _copy_from_iter_full+0xe0
        ffffffff91462370 tcp_sendmsg_locked+0x5e0
        ffffffff91462370 tcp_sendmsg_locked+0x5e0
        ffffffff91462b57 tcp_sendmsg+0x27
        ffffffff9139815c sock_sendmsg+0x4c
        ffffffff913981f7 sock_write_iter+0x97
        ffffffff90f2cc56 do_iter_readv_writev+0x156
        ffffffff90f2dff0 do_iter_write+0x80
        ffffffff90f2e1c3 vfs_writev+0xa3
        ffffffff90f2e27c do_writev+0x5c
        ffffffff90c042bb do_syscall_64+0x5b
        ffffffff916000ad entry_SYSCALL_64_after_hwframe+0x65

The cifs filesystem rightfully sets sk_allocations to GFP_NOFS,
we can avoid the nesting using the sk page frag for allocation
lacking the __GFP_FS flag. Do not define an additional mm-helper
for that, as this is strictly tied to the sk page frag usage.

v1 -> v2:
 - use a stricted sk_page_frag() check instead of reordering the
   code (Eric)

Reported-by: Steffen Froemer <sfroemer@redhat.com>
Fixes: 5640f7685831 ("net: use a per task frag allocator")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/sock.h | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 6270d1d9436b0..bb40d4de545ca 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2322,19 +2322,22 @@ struct sk_buff *sk_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
  * @sk: socket
  *
  * Use the per task page_frag instead of the per socket one for
- * optimization when we know that we're in the normal context and owns
+ * optimization when we know that we're in process context and own
  * everything that's associated with %current.
  *
- * gfpflags_allow_blocking() isn't enough here as direct reclaim may nest
- * inside other socket operations and end up recursing into sk_page_frag()
- * while it's already in use.
+ * Both direct reclaim and page faults can nest inside other
+ * socket operations and end up recursing into sk_page_frag()
+ * while it's already in use: explicitly avoid task page_frag
+ * usage if the caller is potentially doing any of them.
+ * This assumes that page fault handlers use the GFP_NOFS flags.
  *
  * Return: a per task page_frag if context allows that,
  * otherwise a per socket one.
  */
 static inline struct page_frag *sk_page_frag(struct sock *sk)
 {
-	if (gfpflags_normal_context(sk->sk_allocation))
+	if ((sk->sk_allocation & (__GFP_DIRECT_RECLAIM | __GFP_MEMALLOC | __GFP_FS)) ==
+	    (__GFP_DIRECT_RECLAIM | __GFP_FS))
 		return &current->task_frag;
 
 	return &sk->sk_frag;
-- 
GitLab


From 15fa12c119f869173f9b710cbe6a4a14071d2105 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Tue, 30 Nov 2021 19:08:48 +0800
Subject: [PATCH 1943/4878] net: qlogic: qlcnic: Fix a NULL pointer dereference
 in qlcnic_83xx_add_rings()

commit e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572 upstream.

In qlcnic_83xx_add_rings(), the indirect function of
ahw->hw_ops->alloc_mbx_args will be called to allocate memory for
cmd.req.arg, and there is a dereference of it in qlcnic_83xx_add_rings(),
which could lead to a NULL pointer dereference on failure of the
indirect function like qlcnic_83xx_alloc_mbx_args().

Fix this bug by adding a check of alloc_mbx_args(), this patch
imitates the logic of mbx_cmd()'s failure handling.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_QLCNIC=m show no new warnings, and our
static analyzer no longer warns about this code.

Fixes: 7f9664525f9c ("qlcnic: 83xx memory map and HW access routine")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Link: https://lore.kernel.org/r/20211130110848.109026-1-zhou1615@umn.edu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index d51bac7ba5afa..bd06076803295 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1077,8 +1077,14 @@ static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter)
 	sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
 	context_id = recv_ctx->context_id;
 	num_sds = adapter->drv_sds_rings - QLCNIC_MAX_SDS_RINGS;
-	ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
-				    QLCNIC_CMD_ADD_RCV_RINGS);
+	err = ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
+					QLCNIC_CMD_ADD_RCV_RINGS);
+	if (err) {
+		dev_err(&adapter->pdev->dev,
+			"Failed to alloc mbx args %d\n", err);
+		return err;
+	}
+
 	cmd.req.arg[1] = 0 | (num_sds << 8) | (context_id << 16);
 
 	/* set up status rings, mbx 2-81 */
-- 
GitLab


From fd52e1f8c09344b86214cbbdb35d7ff86c8d190a Mon Sep 17 00:00:00 2001
From: Benjamin Poirier <bpoirier@nvidia.com>
Date: Mon, 29 Nov 2021 15:15:05 +0900
Subject: [PATCH 1944/4878] net: mpls: Fix notifications when deleting a device

commit 7d4741eacdefa5f0475431645b56baf00784df1f upstream.

There are various problems related to netlink notifications for mpls route
changes in response to interfaces being deleted:
* delete interface of only nexthop
	DELROUTE notification is missing RTA_OIF attribute
* delete interface of non-last nexthop
	NEWROUTE notification is missing entirely
* delete interface of last nexthop
	DELROUTE notification is missing nexthop

All of these problems stem from the fact that existing routes are modified
in-place before sending a notification. Restructure mpls_ifdown() to avoid
changing the route in the DELROUTE cases and to create a copy in the
NEWROUTE case.

Fixes: f8efb73c97e2 ("mpls: multipath route support")
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mpls/af_mpls.c | 68 +++++++++++++++++++++++++++++++++++-----------
 1 file changed, 52 insertions(+), 16 deletions(-)

diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index f2868a8a50c30..9c047c148a112 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -1490,22 +1490,52 @@ static void mpls_dev_destroy_rcu(struct rcu_head *head)
 	kfree(mdev);
 }
 
-static void mpls_ifdown(struct net_device *dev, int event)
+static int mpls_ifdown(struct net_device *dev, int event)
 {
 	struct mpls_route __rcu **platform_label;
 	struct net *net = dev_net(dev);
-	u8 alive, deleted;
 	unsigned index;
 
 	platform_label = rtnl_dereference(net->mpls.platform_label);
 	for (index = 0; index < net->mpls.platform_labels; index++) {
 		struct mpls_route *rt = rtnl_dereference(platform_label[index]);
+		bool nh_del = false;
+		u8 alive = 0;
 
 		if (!rt)
 			continue;
 
-		alive = 0;
-		deleted = 0;
+		if (event == NETDEV_UNREGISTER) {
+			u8 deleted = 0;
+
+			for_nexthops(rt) {
+				struct net_device *nh_dev =
+					rtnl_dereference(nh->nh_dev);
+
+				if (!nh_dev || nh_dev == dev)
+					deleted++;
+				if (nh_dev == dev)
+					nh_del = true;
+			} endfor_nexthops(rt);
+
+			/* if there are no more nexthops, delete the route */
+			if (deleted == rt->rt_nhn) {
+				mpls_route_update(net, index, NULL, NULL);
+				continue;
+			}
+
+			if (nh_del) {
+				size_t size = sizeof(*rt) + rt->rt_nhn *
+					rt->rt_nh_size;
+				struct mpls_route *orig = rt;
+
+				rt = kmalloc(size, GFP_KERNEL);
+				if (!rt)
+					return -ENOMEM;
+				memcpy(rt, orig, size);
+			}
+		}
+
 		change_nexthops(rt) {
 			unsigned int nh_flags = nh->nh_flags;
 
@@ -1529,16 +1559,15 @@ static void mpls_ifdown(struct net_device *dev, int event)
 next:
 			if (!(nh_flags & (RTNH_F_DEAD | RTNH_F_LINKDOWN)))
 				alive++;
-			if (!rtnl_dereference(nh->nh_dev))
-				deleted++;
 		} endfor_nexthops(rt);
 
 		WRITE_ONCE(rt->rt_nhn_alive, alive);
 
-		/* if there are no more nexthops, delete the route */
-		if (event == NETDEV_UNREGISTER && deleted == rt->rt_nhn)
-			mpls_route_update(net, index, NULL, NULL);
+		if (nh_del)
+			mpls_route_update(net, index, rt, NULL);
 	}
+
+	return 0;
 }
 
 static void mpls_ifup(struct net_device *dev, unsigned int flags)
@@ -1596,8 +1625,12 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
 		return NOTIFY_OK;
 
 	switch (event) {
+		int err;
+
 	case NETDEV_DOWN:
-		mpls_ifdown(dev, event);
+		err = mpls_ifdown(dev, event);
+		if (err)
+			return notifier_from_errno(err);
 		break;
 	case NETDEV_UP:
 		flags = dev_get_flags(dev);
@@ -1608,13 +1641,18 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
 		break;
 	case NETDEV_CHANGE:
 		flags = dev_get_flags(dev);
-		if (flags & (IFF_RUNNING | IFF_LOWER_UP))
+		if (flags & (IFF_RUNNING | IFF_LOWER_UP)) {
 			mpls_ifup(dev, RTNH_F_DEAD | RTNH_F_LINKDOWN);
-		else
-			mpls_ifdown(dev, event);
+		} else {
+			err = mpls_ifdown(dev, event);
+			if (err)
+				return notifier_from_errno(err);
+		}
 		break;
 	case NETDEV_UNREGISTER:
-		mpls_ifdown(dev, event);
+		err = mpls_ifdown(dev, event);
+		if (err)
+			return notifier_from_errno(err);
 		mdev = mpls_dev_get(dev);
 		if (mdev) {
 			mpls_dev_sysctl_unregister(dev, mdev);
@@ -1625,8 +1663,6 @@ static int mpls_dev_notify(struct notifier_block *this, unsigned long event,
 	case NETDEV_CHANGENAME:
 		mdev = mpls_dev_get(dev);
 		if (mdev) {
-			int err;
-
 			mpls_dev_sysctl_unregister(dev, mdev);
 			err = mpls_dev_sysctl_register(dev, mdev);
 			if (err)
-- 
GitLab


From ef55f0f8af2b64ddf9e23518bd11475f9fc7e16d Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 29 Nov 2021 10:39:29 -0500
Subject: [PATCH 1945/4878] siphash: use _unaligned version by default

commit f7e5b9bfa6c8820407b64eabc1f29c9a87e8993d upstream.

On ARM v6 and later, we define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
because the ordinary load/store instructions (ldr, ldrh, ldrb) can
tolerate any misalignment of the memory address. However, load/store
double and load/store multiple instructions (ldrd, ldm) may still only
be used on memory addresses that are 32-bit aligned, and so we have to
use the CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS macro with care, or we
may end up with a severe performance hit due to alignment traps that
require fixups by the kernel. Testing shows that this currently happens
with clang-13 but not gcc-11. In theory, any compiler version can
produce this bug or other problems, as we are dealing with undefined
behavior in C99 even on architectures that support this in hardware,
see also https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363.

Fortunately, the get_unaligned() accessors do the right thing: when
building for ARMv6 or later, the compiler will emit unaligned accesses
using the ordinary load/store instructions (but avoid the ones that
require 32-bit alignment). When building for older ARM, those accessors
will emit the appropriate sequence of ldrb/mov/orr instructions. And on
architectures that can truly tolerate any kind of misalignment, the
get_unaligned() accessors resolve to the leXX_to_cpup accessors that
operate on aligned addresses.

Since the compiler will in fact emit ldrd or ldm instructions when
building this code for ARM v6 or later, the solution is to use the
unaligned accessors unconditionally on architectures where this is
known to be fast. The _aligned version of the hash function is
however still needed to get the best performance on architectures
that cannot do any unaligned access in hardware.

This new version avoids the undefined behavior and should produce
the fastest hash on all architectures we support.

Link: https://lore.kernel.org/linux-arm-kernel/20181008211554.5355-4-ard.biesheuvel@linaro.org/
Link: https://lore.kernel.org/linux-crypto/CAK8P3a2KfmmGDbVHULWevB0hv71P2oi2ZCHEAqT=8dQfa0=cqQ@mail.gmail.com/
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: 2c956a60778c ("siphash: add cryptographically secure PRF")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/siphash.h | 14 ++++----------
 lib/siphash.c           | 12 ++++++------
 2 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/include/linux/siphash.h b/include/linux/siphash.h
index bf21591a9e5e6..0cda61855d907 100644
--- a/include/linux/siphash.h
+++ b/include/linux/siphash.h
@@ -27,9 +27,7 @@ static inline bool siphash_key_is_zero(const siphash_key_t *key)
 }
 
 u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key);
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key);
-#endif
 
 u64 siphash_1u64(const u64 a, const siphash_key_t *key);
 u64 siphash_2u64(const u64 a, const u64 b, const siphash_key_t *key);
@@ -82,10 +80,9 @@ static inline u64 ___siphash_aligned(const __le64 *data, size_t len,
 static inline u64 siphash(const void *data, size_t len,
 			  const siphash_key_t *key)
 {
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-	if (!IS_ALIGNED((unsigned long)data, SIPHASH_ALIGNMENT))
+	if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) ||
+	    !IS_ALIGNED((unsigned long)data, SIPHASH_ALIGNMENT))
 		return __siphash_unaligned(data, len, key);
-#endif
 	return ___siphash_aligned(data, len, key);
 }
 
@@ -96,10 +93,8 @@ typedef struct {
 
 u32 __hsiphash_aligned(const void *data, size_t len,
 		       const hsiphash_key_t *key);
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u32 __hsiphash_unaligned(const void *data, size_t len,
 			 const hsiphash_key_t *key);
-#endif
 
 u32 hsiphash_1u32(const u32 a, const hsiphash_key_t *key);
 u32 hsiphash_2u32(const u32 a, const u32 b, const hsiphash_key_t *key);
@@ -135,10 +130,9 @@ static inline u32 ___hsiphash_aligned(const __le32 *data, size_t len,
 static inline u32 hsiphash(const void *data, size_t len,
 			   const hsiphash_key_t *key)
 {
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-	if (!IS_ALIGNED((unsigned long)data, HSIPHASH_ALIGNMENT))
+	if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) ||
+	    !IS_ALIGNED((unsigned long)data, HSIPHASH_ALIGNMENT))
 		return __hsiphash_unaligned(data, len, key);
-#endif
 	return ___hsiphash_aligned(data, len, key);
 }
 
diff --git a/lib/siphash.c b/lib/siphash.c
index c47bb6ff21499..025f0cbf6d7a7 100644
--- a/lib/siphash.c
+++ b/lib/siphash.c
@@ -49,6 +49,7 @@
 	SIPROUND; \
 	return (v0 ^ v1) ^ (v2 ^ v3);
 
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key)
 {
 	const u8 *end = data + len - (len % sizeof(u64));
@@ -80,8 +81,8 @@ u64 __siphash_aligned(const void *data, size_t len, const siphash_key_t *key)
 	POSTAMBLE
 }
 EXPORT_SYMBOL(__siphash_aligned);
+#endif
 
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key)
 {
 	const u8 *end = data + len - (len % sizeof(u64));
@@ -113,7 +114,6 @@ u64 __siphash_unaligned(const void *data, size_t len, const siphash_key_t *key)
 	POSTAMBLE
 }
 EXPORT_SYMBOL(__siphash_unaligned);
-#endif
 
 /**
  * siphash_1u64 - compute 64-bit siphash PRF value of a u64
@@ -250,6 +250,7 @@ EXPORT_SYMBOL(siphash_3u32);
 	HSIPROUND; \
 	return (v0 ^ v1) ^ (v2 ^ v3);
 
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
 {
 	const u8 *end = data + len - (len % sizeof(u64));
@@ -280,8 +281,8 @@ u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
 	HPOSTAMBLE
 }
 EXPORT_SYMBOL(__hsiphash_aligned);
+#endif
 
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u32 __hsiphash_unaligned(const void *data, size_t len,
 			 const hsiphash_key_t *key)
 {
@@ -313,7 +314,6 @@ u32 __hsiphash_unaligned(const void *data, size_t len,
 	HPOSTAMBLE
 }
 EXPORT_SYMBOL(__hsiphash_unaligned);
-#endif
 
 /**
  * hsiphash_1u32 - compute 64-bit hsiphash PRF value of a u32
@@ -418,6 +418,7 @@ EXPORT_SYMBOL(hsiphash_4u32);
 	HSIPROUND; \
 	return v1 ^ v3;
 
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
 {
 	const u8 *end = data + len - (len % sizeof(u32));
@@ -438,8 +439,8 @@ u32 __hsiphash_aligned(const void *data, size_t len, const hsiphash_key_t *key)
 	HPOSTAMBLE
 }
 EXPORT_SYMBOL(__hsiphash_aligned);
+#endif
 
-#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 u32 __hsiphash_unaligned(const void *data, size_t len,
 			 const hsiphash_key_t *key)
 {
@@ -461,7 +462,6 @@ u32 __hsiphash_unaligned(const void *data, size_t len,
 	HPOSTAMBLE
 }
 EXPORT_SYMBOL(__hsiphash_unaligned);
-#endif
 
 /**
  * hsiphash_1u32 - compute 32-bit hsiphash PRF value of a u32
-- 
GitLab


From 59d2dc771006ccb950a0a024c8c00a922fe4d97e Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Mon, 29 Nov 2021 13:57:09 +0000
Subject: [PATCH 1946/4878] arm64: ftrace: add missing BTIs

commit 35b6b28e69985eafb20b3b2c7bd6eca452b56b53 upstream.

When branch target identifiers are in use, code reachable via an
indirect branch requires a BTI landing pad at the branch target site.

When building FTRACE_WITH_REGS atop patchable-function-entry, we miss
BTIs at the start start of the `ftrace_caller` and `ftrace_regs_caller`
trampolines, and when these are called from a module via a PLT (which
will use a `BR X16`), we will encounter a BTI failure, e.g.

| # insmod lkdtm.ko
| lkdtm: No crash points registered, enable through debugfs
| # echo function_graph > /sys/kernel/debug/tracing/current_tracer
| # cat /sys/kernel/debug/provoke-crash/DIRECT
| Unhandled 64-bit el1h sync exception on CPU0, ESR 0x34000001 -- BTI
| CPU: 0 PID: 174 Comm: cat Not tainted 5.16.0-rc2-dirty #3
| Hardware name: linux,dummy-virt (DT)
| pstate: 60400405 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=jc)
| pc : ftrace_caller+0x0/0x3c
| lr : lkdtm_debugfs_open+0xc/0x20 [lkdtm]
| sp : ffff800012e43b00
| x29: ffff800012e43b00 x28: 0000000000000000 x27: ffff800012e43c88
| x26: 0000000000000000 x25: 0000000000000000 x24: ffff0000c171f200
| x23: ffff0000c27b1e00 x22: ffff0000c2265240 x21: ffff0000c23c8c30
| x20: ffff8000090ba380 x19: 0000000000000000 x18: 0000000000000000
| x17: 0000000000000000 x16: ffff80001002bb4c x15: 0000000000000000
| x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000900ff0
| x11: ffff0000c4166310 x10: ffff800012e43b00 x9 : ffff8000104f2384
| x8 : 0000000000000001 x7 : 0000000000000000 x6 : 000000000000003f
| x5 : 0000000000000040 x4 : ffff800012e43af0 x3 : 0000000000000001
| x2 : ffff8000090b0000 x1 : ffff0000c171f200 x0 : ffff0000c23c8c30
| Kernel panic - not syncing: Unhandled exception
| CPU: 0 PID: 174 Comm: cat Not tainted 5.16.0-rc2-dirty #3
| Hardware name: linux,dummy-virt (DT)
| Call trace:
|  dump_backtrace+0x0/0x1a4
|  show_stack+0x24/0x30
|  dump_stack_lvl+0x68/0x84
|  dump_stack+0x1c/0x38
|  panic+0x168/0x360
|  arm64_exit_nmi.isra.0+0x0/0x80
|  el1h_64_sync_handler+0x68/0xd4
|  el1h_64_sync+0x78/0x7c
|  ftrace_caller+0x0/0x3c
|  do_dentry_open+0x134/0x3b0
|  vfs_open+0x38/0x44
|  path_openat+0x89c/0xe40
|  do_filp_open+0x8c/0x13c
|  do_sys_openat2+0xbc/0x174
|  __arm64_sys_openat+0x6c/0xbc
|  invoke_syscall+0x50/0x120
|  el0_svc_common.constprop.0+0xdc/0x100
|  do_el0_svc+0x84/0xa0
|  el0_svc+0x28/0x80
|  el0t_64_sync_handler+0xa8/0x130
|  el0t_64_sync+0x1a0/0x1a4
| SMP: stopping secondary CPUs
| Kernel Offset: disabled
| CPU features: 0x0,00000f42,da660c5f
| Memory Limit: none
| ---[ end Kernel panic - not syncing: Unhandled exception ]---

Fix this by adding the required `BTI C`, as we only require these to be
reachable via BL for direct calls or BR X16/X17 for PLTs. For now, these
are open-coded in the function prologue, matching the style of the
`__hwasan_tag_mismatch` trampoline.

In future we may wish to consider adding a new SYM_CODE_START_*()
variant which has an implicit BTI.

When ftrace is built atop mcount, the trampolines are marked with
SYM_FUNC_START(), and so get an implicit BTI. We may need to change
these over to SYM_CODE_START() in future for RELIABLE_STACKTRACE, in
case we need to apply special care aroud the return address being
rewritten.

Fixes: 97fed779f2a6 ("arm64: bti: Provide Kconfig for kernel mode BTI")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211129135709.2274019-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry-ftrace.S | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/kernel/entry-ftrace.S b/arch/arm64/kernel/entry-ftrace.S
index a338f40e64d39..67f68c9ef94c4 100644
--- a/arch/arm64/kernel/entry-ftrace.S
+++ b/arch/arm64/kernel/entry-ftrace.S
@@ -77,11 +77,17 @@
 	.endm
 
 SYM_CODE_START(ftrace_regs_caller)
+#ifdef BTI_C
+	BTI_C
+#endif
 	ftrace_regs_entry	1
 	b	ftrace_common
 SYM_CODE_END(ftrace_regs_caller)
 
 SYM_CODE_START(ftrace_caller)
+#ifdef BTI_C
+	BTI_C
+#endif
 	ftrace_regs_entry	0
 	b	ftrace_common
 SYM_CODE_END(ftrace_caller)
-- 
GitLab


From f1d43efa59f1edd3e7eca0e94559b4c6b1cd4e2b Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Wed, 1 Dec 2021 00:44:38 +0800
Subject: [PATCH 1947/4878] net/mlx4_en: Fix an use-after-free bug in
 mlx4_en_try_alloc_resources()

commit addad7643142f500080417dd7272f49b7a185570 upstream.

In mlx4_en_try_alloc_resources(), mlx4_en_copy_priv() is called and
tmp->tx_cq will be freed on the error path of mlx4_en_copy_priv().
After that mlx4_en_alloc_resources() is called and there is a dereference
of &tmp->tx_cq[t][i] in mlx4_en_alloc_resources(), which could lead to
a use after free problem on failure of mlx4_en_copy_priv().

Fix this bug by adding a check of mlx4_en_copy_priv()

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_MLX4_EN=m show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: ec25bc04ed8e ("net/mlx4_en: Add resilience in low memory systems")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20211130164438.190591-1-zhou1615@umn.edu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 8999e9ce4f08e..a0551d6c2ffd6 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2276,9 +2276,14 @@ int mlx4_en_try_alloc_resources(struct mlx4_en_priv *priv,
 				bool carry_xdp_prog)
 {
 	struct bpf_prog *xdp_prog;
-	int i, t;
+	int i, t, ret;
 
-	mlx4_en_copy_priv(tmp, priv, prof);
+	ret = mlx4_en_copy_priv(tmp, priv, prof);
+	if (ret) {
+		en_warn(priv, "%s: mlx4_en_copy_priv() failed, return\n",
+			__func__);
+		return ret;
+	}
 
 	if (mlx4_en_alloc_resources(tmp)) {
 		en_warn(priv,
-- 
GitLab


From a0335cda6d921462af0c6d9d33103cada4862523 Mon Sep 17 00:00:00 2001
From: Li Zhijian <lizhijian@cn.fujitsu.com>
Date: Thu, 2 Dec 2021 10:28:41 +0800
Subject: [PATCH 1948/4878] selftests: net: Correct case name

commit a05431b22be819d75db72ca3d44381d18a37b092 upstream.

ipv6_addr_bind/ipv4_addr_bind are function names. Previously, bind test
would not be run by default due to the wrong case names

Fixes: 34d0302ab861 ("selftests: Add ipv6 address bind tests to fcnal-test")
Fixes: 75b2b2b3db4c ("selftests: Add ipv4 address bind tests to fcnal-test")
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 225440f5f99eb..7c9ace9d15991 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -3911,8 +3911,8 @@ EOF
 ################################################################################
 # main
 
-TESTS_IPV4="ipv4_ping ipv4_tcp ipv4_udp ipv4_addr_bind ipv4_runtime ipv4_netfilter"
-TESTS_IPV6="ipv6_ping ipv6_tcp ipv6_udp ipv6_addr_bind ipv6_runtime ipv6_netfilter"
+TESTS_IPV4="ipv4_ping ipv4_tcp ipv4_udp ipv4_bind ipv4_runtime ipv4_netfilter"
+TESTS_IPV6="ipv6_ping ipv6_tcp ipv6_udp ipv6_bind ipv6_runtime ipv6_netfilter"
 TESTS_OTHER="use_cases"
 
 PAUSE_ON_FAIL=no
-- 
GitLab


From 932b338f4e5c4cb0c2ed640da3bced1e63620198 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Thu, 18 Nov 2021 13:47:48 +0100
Subject: [PATCH 1949/4878] mt76: mt7915: fix NULL pointer dereference in
 mt7915_get_phy_mode

commit 6e53d6d26920d5221d3f4d4f5ffdd629ea69aa5c upstream.

Fix the following NULL pointer dereference in mt7915_get_phy_mode
routine adding an ibss interface to the mt7915 driver.

[  101.137097] wlan0: Trigger new scan to find an IBSS to join
[  102.827039] wlan0: Creating new IBSS network, BSSID 26:a4:50:1a:6e:69
[  103.064756] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
[  103.073670] Mem abort info:
[  103.076520]   ESR = 0x96000005
[  103.079614]   EC = 0x25: DABT (current EL), IL = 32 bits
[  103.084934]   SET = 0, FnV = 0
[  103.088042]   EA = 0, S1PTW = 0
[  103.091215] Data abort info:
[  103.094104]   ISV = 0, ISS = 0x00000005
[  103.098041]   CM = 0, WnR = 0
[  103.101044] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000460b1000
[  103.107565] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000
[  103.116590] Internal error: Oops: 96000005 [#1] SMP
[  103.189066] CPU: 1 PID: 333 Comm: kworker/u4:3 Not tainted 5.10.75 #0
[  103.195498] Hardware name: MediaTek MT7622 RFB1 board (DT)
[  103.201124] Workqueue: phy0 ieee80211_iface_work [mac80211]
[  103.206695] pstate: 20000005 (nzCv daif -PAN -UAO -TCO BTYPE=--)
[  103.212705] pc : mt7915_get_phy_mode+0x68/0x120 [mt7915e]
[  103.218103] lr : mt7915_mcu_add_bss_info+0x11c/0x760 [mt7915e]
[  103.223927] sp : ffffffc011cdb9e0
[  103.227235] x29: ffffffc011cdb9e0 x28: ffffff8006563098
[  103.232545] x27: ffffff8005f4da22 x26: ffffff800685ac40
[  103.237855] x25: 0000000000000001 x24: 000000000000011f
[  103.243165] x23: ffffff8005f4e260 x22: ffffff8006567918
[  103.248475] x21: ffffff8005f4df80 x20: ffffff800685ac58
[  103.253785] x19: ffffff8006744400 x18: 0000000000000000
[  103.259094] x17: 0000000000000000 x16: 0000000000000001
[  103.264403] x15: 000899c3a2d9d2e4 x14: 000899bdc3c3a1c8
[  103.269713] x13: 0000000000000000 x12: 0000000000000000
[  103.275024] x11: ffffffc010e30c20 x10: 0000000000000000
[  103.280333] x9 : 0000000000000050 x8 : ffffff8006567d88
[  103.285642] x7 : ffffff8006563b5c x6 : ffffff8006563b44
[  103.290952] x5 : 0000000000000002 x4 : 0000000000000001
[  103.296262] x3 : 0000000000000001 x2 : 0000000000000001
[  103.301572] x1 : 0000000000000000 x0 : 0000000000000011
[  103.306882] Call trace:
[  103.309328]  mt7915_get_phy_mode+0x68/0x120 [mt7915e]
[  103.314378]  mt7915_bss_info_changed+0x198/0x200 [mt7915e]
[  103.319941]  ieee80211_bss_info_change_notify+0x128/0x290 [mac80211]
[  103.326360]  __ieee80211_sta_join_ibss+0x308/0x6c4 [mac80211]
[  103.332171]  ieee80211_sta_create_ibss+0x8c/0x10c [mac80211]
[  103.337895]  ieee80211_ibss_work+0x3dc/0x614 [mac80211]
[  103.343185]  ieee80211_iface_work+0x388/0x3f0 [mac80211]
[  103.348495]  process_one_work+0x288/0x690
[  103.352499]  worker_thread+0x70/0x464
[  103.356157]  kthread+0x144/0x150
[  103.359380]  ret_from_fork+0x10/0x18
[  103.362952] Code: 394008c3 52800220 394000e4 7100007f (39400023)

Fixes: 37f4ca907c46 ("mt76: mt7915: register per-phy HE capabilities for each interface")
Fixes: e57b7901469f ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/ddae419a740f1fb9e48afd432035e9f394f512ee.1637239456.git.lorenzo@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 7b6e9a5352b35..9a7f317a098fc 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -182,7 +182,7 @@ mt7915_get_phy_mode(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 		if (ht_cap->ht_supported)
 			mode |= PHY_MODE_GN;
 
-		if (he_cap->has_he)
+		if (he_cap && he_cap->has_he)
 			mode |= PHY_MODE_AX_24G;
 	} else if (band == NL80211_BAND_5GHZ) {
 		mode |= PHY_MODE_A;
@@ -193,7 +193,7 @@ mt7915_get_phy_mode(struct mt7915_dev *dev, struct ieee80211_vif *vif,
 		if (vht_cap->vht_supported)
 			mode |= PHY_MODE_AC;
 
-		if (he_cap->has_he)
+		if (he_cap && he_cap->has_he)
 			mode |= PHY_MODE_AX_5G;
 	}
 
-- 
GitLab


From 6b54c0d845e5bfe0471d09d7a1b6c72d9b9a9259 Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:36:56 +0530
Subject: [PATCH 1950/4878] ASoC: tegra: Fix wrong value type in ADMAIF

commit 884c6cb3b7030f75c46e55b9e625d2372708c306 upstream.

The enum controls are expected to use enumerated value type.
Update relevant references in control get/put callbacks.

Fixes: f74028e159bb ("ASoC: tegra: Add Tegra210 based ADMAIF driver")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-2-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_admaif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/tegra/tegra210_admaif.c b/sound/soc/tegra/tegra210_admaif.c
index 1268046b345d9..2382269c7b744 100644
--- a/sound/soc/tegra/tegra210_admaif.c
+++ b/sound/soc/tegra/tegra210_admaif.c
@@ -430,7 +430,7 @@ static int tegra_admaif_get_control(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
 	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
 	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
-	long *uctl_val = &ucontrol->value.integer.value[0];
+	unsigned int *uctl_val = &ucontrol->value.enumerated.item[0];
 
 	if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
 		*uctl_val = admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg];
@@ -450,7 +450,7 @@ static int tegra_admaif_put_control(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
 	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
 	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
-	int value = ucontrol->value.integer.value[0];
+	unsigned int value = ucontrol->value.enumerated.item[0];
 
 	if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
 		admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg] = value;
-- 
GitLab


From e66e75fb2278b4a14ce1536f9bb9d0a8163db38f Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:36:57 +0530
Subject: [PATCH 1951/4878] ASoC: tegra: Fix wrong value type in I2S

commit 8a2c2fa0c5331445c801e9241f2bb4e0e2a895a8 upstream.

The enum controls are expected to use enumerated value type.
Update relevant references in control get/put callbacks.

Fixes: c0bfa98349d1 ("ASoC: tegra: Add Tegra210 based I2S driver")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-3-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_i2s.c | 42 +++++++++++++++++++---------------
 1 file changed, 24 insertions(+), 18 deletions(-)

diff --git a/sound/soc/tegra/tegra210_i2s.c b/sound/soc/tegra/tegra210_i2s.c
index a383bd5c51cd4..1cb01be76572e 100644
--- a/sound/soc/tegra/tegra210_i2s.c
+++ b/sound/soc/tegra/tegra210_i2s.c
@@ -317,24 +317,27 @@ static int tegra210_i2s_get_control(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
-	long *uctl_val = &ucontrol->value.integer.value[0];
 
 	if (strstr(kcontrol->id.name, "Loopback"))
-		*uctl_val = i2s->loopback;
+		ucontrol->value.integer.value[0] = i2s->loopback;
 	else if (strstr(kcontrol->id.name, "FSYNC Width"))
-		*uctl_val = i2s->fsync_width;
+		ucontrol->value.integer.value[0] = i2s->fsync_width;
 	else if (strstr(kcontrol->id.name, "Capture Stereo To Mono"))
-		*uctl_val = i2s->stereo_to_mono[I2S_TX_PATH];
+		ucontrol->value.enumerated.item[0] =
+			i2s->stereo_to_mono[I2S_TX_PATH];
 	else if (strstr(kcontrol->id.name, "Capture Mono To Stereo"))
-		*uctl_val = i2s->mono_to_stereo[I2S_TX_PATH];
+		ucontrol->value.enumerated.item[0] =
+			i2s->mono_to_stereo[I2S_TX_PATH];
 	else if (strstr(kcontrol->id.name, "Playback Stereo To Mono"))
-		*uctl_val = i2s->stereo_to_mono[I2S_RX_PATH];
+		ucontrol->value.enumerated.item[0] =
+			i2s->stereo_to_mono[I2S_RX_PATH];
 	else if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
-		*uctl_val = i2s->mono_to_stereo[I2S_RX_PATH];
+		ucontrol->value.enumerated.item[0] =
+			i2s->mono_to_stereo[I2S_RX_PATH];
 	else if (strstr(kcontrol->id.name, "Playback FIFO Threshold"))
-		*uctl_val = i2s->rx_fifo_th;
+		ucontrol->value.integer.value[0] = i2s->rx_fifo_th;
 	else if (strstr(kcontrol->id.name, "BCLK Ratio"))
-		*uctl_val = i2s->bclk_ratio;
+		ucontrol->value.integer.value[0] = i2s->bclk_ratio;
 
 	return 0;
 }
@@ -344,10 +347,9 @@ static int tegra210_i2s_put_control(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
-	int value = ucontrol->value.integer.value[0];
 
 	if (strstr(kcontrol->id.name, "Loopback")) {
-		i2s->loopback = value;
+		i2s->loopback = ucontrol->value.integer.value[0];
 
 		regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
 				   I2S_CTRL_LPBK_MASK,
@@ -362,24 +364,28 @@ static int tegra210_i2s_put_control(struct snd_kcontrol *kcontrol,
 		 * cases mixer control is used to update custom values. A value
 		 * of "N" here means, width is "N + 1" bit clock wide.
 		 */
-		i2s->fsync_width = value;
+		i2s->fsync_width = ucontrol->value.integer.value[0];
 
 		regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
 				   I2S_CTRL_FSYNC_WIDTH_MASK,
 				   i2s->fsync_width << I2S_FSYNC_WIDTH_SHIFT);
 
 	} else if (strstr(kcontrol->id.name, "Capture Stereo To Mono")) {
-		i2s->stereo_to_mono[I2S_TX_PATH] = value;
+		i2s->stereo_to_mono[I2S_TX_PATH] =
+			ucontrol->value.enumerated.item[0];
 	} else if (strstr(kcontrol->id.name, "Capture Mono To Stereo")) {
-		i2s->mono_to_stereo[I2S_TX_PATH] = value;
+		i2s->mono_to_stereo[I2S_TX_PATH] =
+			ucontrol->value.enumerated.item[0];
 	} else if (strstr(kcontrol->id.name, "Playback Stereo To Mono")) {
-		i2s->stereo_to_mono[I2S_RX_PATH] = value;
+		i2s->stereo_to_mono[I2S_RX_PATH] =
+			ucontrol->value.enumerated.item[0];
 	} else if (strstr(kcontrol->id.name, "Playback Mono To Stereo")) {
-		i2s->mono_to_stereo[I2S_RX_PATH] = value;
+		i2s->mono_to_stereo[I2S_RX_PATH] =
+			ucontrol->value.enumerated.item[0];
 	} else if (strstr(kcontrol->id.name, "Playback FIFO Threshold")) {
-		i2s->rx_fifo_th = value;
+		i2s->rx_fifo_th = ucontrol->value.integer.value[0];
 	} else if (strstr(kcontrol->id.name, "BCLK Ratio")) {
-		i2s->bclk_ratio = value;
+		i2s->bclk_ratio = ucontrol->value.integer.value[0];
 	}
 
 	return 0;
-- 
GitLab


From 0265ef0dff5ec46042ca07f781084f4ad402b76d Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:36:58 +0530
Subject: [PATCH 1952/4878] ASoC: tegra: Fix wrong value type in DMIC

commit 559d234569a998a4004de1bd1f12da5487fb826e upstream.

The enum controls are expected to use enumerated value type.
Update relevant references in control get/put callbacks.

Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-4-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_dmic.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/sound/soc/tegra/tegra210_dmic.c b/sound/soc/tegra/tegra210_dmic.c
index a661f40bc41c7..3ed79b34a987a 100644
--- a/sound/soc/tegra/tegra210_dmic.c
+++ b/sound/soc/tegra/tegra210_dmic.c
@@ -165,15 +165,15 @@ static int tegra210_dmic_get_control(struct snd_kcontrol *kcontrol,
 	if (strstr(kcontrol->id.name, "Boost Gain Volume"))
 		ucontrol->value.integer.value[0] = dmic->boost_gain;
 	else if (strstr(kcontrol->id.name, "Channel Select"))
-		ucontrol->value.integer.value[0] = dmic->ch_select;
+		ucontrol->value.enumerated.item[0] = dmic->ch_select;
 	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		ucontrol->value.integer.value[0] = dmic->mono_to_stereo;
+		ucontrol->value.enumerated.item[0] = dmic->mono_to_stereo;
 	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		ucontrol->value.integer.value[0] = dmic->stereo_to_mono;
+		ucontrol->value.enumerated.item[0] = dmic->stereo_to_mono;
 	else if (strstr(kcontrol->id.name, "OSR Value"))
-		ucontrol->value.integer.value[0] = dmic->osr_val;
+		ucontrol->value.enumerated.item[0] = dmic->osr_val;
 	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		ucontrol->value.integer.value[0] = dmic->lrsel;
+		ucontrol->value.enumerated.item[0] = dmic->lrsel;
 
 	return 0;
 }
@@ -183,20 +183,19 @@ static int tegra210_dmic_put_control(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
-	int value = ucontrol->value.integer.value[0];
 
 	if (strstr(kcontrol->id.name, "Boost Gain Volume"))
-		dmic->boost_gain = value;
+		dmic->boost_gain = ucontrol->value.integer.value[0];
 	else if (strstr(kcontrol->id.name, "Channel Select"))
-		dmic->ch_select = ucontrol->value.integer.value[0];
+		dmic->ch_select = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		dmic->mono_to_stereo = value;
+		dmic->mono_to_stereo = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		dmic->stereo_to_mono = value;
+		dmic->stereo_to_mono = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "OSR Value"))
-		dmic->osr_val = value;
+		dmic->osr_val = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		dmic->lrsel = value;
+		dmic->lrsel = ucontrol->value.enumerated.item[0];
 
 	return 0;
 }
-- 
GitLab


From e6fb4c3fd35b40ddb7ab6f79fad3b98ddd22b9f6 Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:36:59 +0530
Subject: [PATCH 1953/4878] ASoC: tegra: Fix wrong value type in DSPK

commit 3aa0d5c8bb3f5ef622ec2764823f551a1f630711 upstream.

The enum controls are expected to use enumerated value type.
Update relevant references in control get/put callbacks.

Fixes: 327ef6470266 ("ASoC: tegra: Add Tegra186 based DSPK driver")
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-5-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra186_dspk.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/sound/soc/tegra/tegra186_dspk.c b/sound/soc/tegra/tegra186_dspk.c
index 0cbe31e2c7e9c..0a92e67679761 100644
--- a/sound/soc/tegra/tegra186_dspk.c
+++ b/sound/soc/tegra/tegra186_dspk.c
@@ -35,15 +35,15 @@ static int tegra186_dspk_get_control(struct snd_kcontrol *kcontrol,
 	if (strstr(kcontrol->id.name, "FIFO Threshold"))
 		ucontrol->value.integer.value[0] = dspk->rx_fifo_th;
 	else if (strstr(kcontrol->id.name, "OSR Value"))
-		ucontrol->value.integer.value[0] = dspk->osr_val;
+		ucontrol->value.enumerated.item[0] = dspk->osr_val;
 	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		ucontrol->value.integer.value[0] = dspk->lrsel;
+		ucontrol->value.enumerated.item[0] = dspk->lrsel;
 	else if (strstr(kcontrol->id.name, "Channel Select"))
-		ucontrol->value.integer.value[0] = dspk->ch_sel;
+		ucontrol->value.enumerated.item[0] = dspk->ch_sel;
 	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		ucontrol->value.integer.value[0] = dspk->mono_to_stereo;
+		ucontrol->value.enumerated.item[0] = dspk->mono_to_stereo;
 	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		ucontrol->value.integer.value[0] = dspk->stereo_to_mono;
+		ucontrol->value.enumerated.item[0] = dspk->stereo_to_mono;
 
 	return 0;
 }
@@ -53,20 +53,19 @@ static int tegra186_dspk_put_control(struct snd_kcontrol *kcontrol,
 {
 	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
 	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
-	int val = ucontrol->value.integer.value[0];
 
 	if (strstr(kcontrol->id.name, "FIFO Threshold"))
-		dspk->rx_fifo_th = val;
+		dspk->rx_fifo_th = ucontrol->value.integer.value[0];
 	else if (strstr(kcontrol->id.name, "OSR Value"))
-		dspk->osr_val = val;
+		dspk->osr_val = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		dspk->lrsel = val;
+		dspk->lrsel = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "Channel Select"))
-		dspk->ch_sel = val;
+		dspk->ch_sel = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		dspk->mono_to_stereo = val;
+		dspk->mono_to_stereo = ucontrol->value.enumerated.item[0];
 	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		dspk->stereo_to_mono = val;
+		dspk->stereo_to_mono = ucontrol->value.enumerated.item[0];
 
 	return 0;
 }
-- 
GitLab


From 0ee53a1d888998b9b88793696d63a11122d6ad4f Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:37:02 +0530
Subject: [PATCH 1954/4878] ASoC: tegra: Fix kcontrol put callback in ADMAIF

commit e2b87a18a60c02d0dcd1de801d669587e516cc4d upstream.

The kcontrol put callback is expected to return 1 when there is change
in HW or when the update is acknowledged by driver. This would ensure
that change notifications are sent to subscribed applications. Update
the ADMAIF driver accordingly.

Fixes: f74028e159bb ("ASoC: tegra: Add Tegra210 based ADMAIF driver")
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-8-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_admaif.c | 138 +++++++++++++++++++++++-------
 1 file changed, 109 insertions(+), 29 deletions(-)

diff --git a/sound/soc/tegra/tegra210_admaif.c b/sound/soc/tegra/tegra210_admaif.c
index 2382269c7b744..d610cbe4a7c4a 100644
--- a/sound/soc/tegra/tegra210_admaif.c
+++ b/sound/soc/tegra/tegra210_admaif.c
@@ -424,46 +424,122 @@ static const struct snd_soc_dai_ops tegra_admaif_dai_ops = {
 	.trigger	= tegra_admaif_trigger,
 };
 
-static int tegra_admaif_get_control(struct snd_kcontrol *kcontrol,
-				    struct snd_ctl_elem_value *ucontrol)
+static int tegra210_admaif_pget_mono_to_stereo(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
 	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+
+	ucontrol->value.enumerated.item[0] =
+		admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg];
+
+	return 0;
+}
+
+static int tegra210_admaif_pput_mono_to_stereo(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
 	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
-	unsigned int *uctl_val = &ucontrol->value.enumerated.item[0];
+	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+	unsigned int value = ucontrol->value.enumerated.item[0];
 
-	if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
-		*uctl_val = admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg];
-	else if (strstr(kcontrol->id.name, "Capture Mono To Stereo"))
-		*uctl_val = admaif->mono_to_stereo[ADMAIF_RX_PATH][ec->reg];
-	else if (strstr(kcontrol->id.name, "Playback Stereo To Mono"))
-		*uctl_val = admaif->stereo_to_mono[ADMAIF_TX_PATH][ec->reg];
-	else if (strstr(kcontrol->id.name, "Capture Stereo To Mono"))
-		*uctl_val = admaif->stereo_to_mono[ADMAIF_RX_PATH][ec->reg];
+	if (value == admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg])
+		return 0;
+
+	admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg] = value;
+
+	return 1;
+}
+
+static int tegra210_admaif_cget_mono_to_stereo(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
+	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+
+	ucontrol->value.enumerated.item[0] =
+		admaif->mono_to_stereo[ADMAIF_RX_PATH][ec->reg];
 
 	return 0;
 }
 
-static int tegra_admaif_put_control(struct snd_kcontrol *kcontrol,
-				    struct snd_ctl_elem_value *ucontrol)
+static int tegra210_admaif_cput_mono_to_stereo(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
 	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == admaif->mono_to_stereo[ADMAIF_RX_PATH][ec->reg])
+		return 0;
+
+	admaif->mono_to_stereo[ADMAIF_RX_PATH][ec->reg] = value;
+
+	return 1;
+}
+
+static int tegra210_admaif_pget_stereo_to_mono(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
 	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
+	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+
+	ucontrol->value.enumerated.item[0] =
+		admaif->stereo_to_mono[ADMAIF_TX_PATH][ec->reg];
+
+	return 0;
+}
+
+static int tegra210_admaif_pput_stereo_to_mono(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
+	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
 	unsigned int value = ucontrol->value.enumerated.item[0];
 
-	if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
-		admaif->mono_to_stereo[ADMAIF_TX_PATH][ec->reg] = value;
-	else if (strstr(kcontrol->id.name, "Capture Mono To Stereo"))
-		admaif->mono_to_stereo[ADMAIF_RX_PATH][ec->reg] = value;
-	else if (strstr(kcontrol->id.name, "Playback Stereo To Mono"))
-		admaif->stereo_to_mono[ADMAIF_TX_PATH][ec->reg] = value;
-	else if (strstr(kcontrol->id.name, "Capture Stereo To Mono"))
-		admaif->stereo_to_mono[ADMAIF_RX_PATH][ec->reg] = value;
+	if (value == admaif->stereo_to_mono[ADMAIF_TX_PATH][ec->reg])
+		return 0;
+
+	admaif->stereo_to_mono[ADMAIF_TX_PATH][ec->reg] = value;
+
+	return 1;
+}
+
+static int tegra210_admaif_cget_stereo_to_mono(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
+	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+
+	ucontrol->value.enumerated.item[0] =
+		admaif->stereo_to_mono[ADMAIF_RX_PATH][ec->reg];
 
 	return 0;
 }
 
+static int tegra210_admaif_cput_stereo_to_mono(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra_admaif *admaif = snd_soc_component_get_drvdata(cmpnt);
+	struct soc_enum *ec = (struct soc_enum *)kcontrol->private_value;
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == admaif->stereo_to_mono[ADMAIF_RX_PATH][ec->reg])
+		return 0;
+
+	admaif->stereo_to_mono[ADMAIF_RX_PATH][ec->reg] = value;
+
+	return 1;
+}
+
 static int tegra_admaif_dai_probe(struct snd_soc_dai *dai)
 {
 	struct tegra_admaif *admaif = snd_soc_dai_get_drvdata(dai);
@@ -559,17 +635,21 @@ static const char * const tegra_admaif_mono_conv_text[] = {
 }
 
 #define TEGRA_ADMAIF_CIF_CTRL(reg)					       \
-	NV_SOC_ENUM_EXT("ADMAIF" #reg " Playback Mono To Stereo", reg - 1,\
-			tegra_admaif_get_control, tegra_admaif_put_control,    \
+	NV_SOC_ENUM_EXT("ADMAIF" #reg " Playback Mono To Stereo", reg - 1,     \
+			tegra210_admaif_pget_mono_to_stereo,		       \
+			tegra210_admaif_pput_mono_to_stereo,		       \
 			tegra_admaif_mono_conv_text),			       \
-	NV_SOC_ENUM_EXT("ADMAIF" #reg " Playback Stereo To Mono", reg - 1,\
-			tegra_admaif_get_control, tegra_admaif_put_control,    \
+	NV_SOC_ENUM_EXT("ADMAIF" #reg " Playback Stereo To Mono", reg - 1,     \
+			tegra210_admaif_pget_stereo_to_mono,		       \
+			tegra210_admaif_pput_stereo_to_mono,		       \
 			tegra_admaif_stereo_conv_text),			       \
-	NV_SOC_ENUM_EXT("ADMAIF" #reg " Capture Mono To Stereo", reg - 1, \
-			tegra_admaif_get_control, tegra_admaif_put_control,    \
+	NV_SOC_ENUM_EXT("ADMAIF" #reg " Capture Mono To Stereo", reg - 1,      \
+			tegra210_admaif_cget_mono_to_stereo,		       \
+			tegra210_admaif_cput_mono_to_stereo,		       \
 			tegra_admaif_mono_conv_text),			       \
-	NV_SOC_ENUM_EXT("ADMAIF" #reg " Capture Stereo To Mono", reg - 1, \
-			tegra_admaif_get_control, tegra_admaif_put_control,    \
+	NV_SOC_ENUM_EXT("ADMAIF" #reg " Capture Stereo To Mono", reg - 1,      \
+			tegra210_admaif_cget_stereo_to_mono,		       \
+			tegra210_admaif_cput_stereo_to_mono,		       \
 			tegra_admaif_stereo_conv_text)
 
 static struct snd_kcontrol_new tegra210_admaif_controls[] = {
-- 
GitLab


From 1cf1f9a1f3ed4c4f77dcb3b652bb5f6624afe94c Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:37:03 +0530
Subject: [PATCH 1955/4878] ASoC: tegra: Fix kcontrol put callback in I2S

commit f21a9df3f7cb0005947679d7b9237c90574e229a upstream.

The kcontrol put callback is expected to return 1 when there is change
in HW or when the update is acknowledged by driver. This would ensure
that change notifications are sent to subscribed applications. Update
the I2S driver accordingly.

Fixes: c0bfa98349d1 ("ASoC: tegra: Add Tegra210 based I2S driver")
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-9-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_i2s.c | 302 ++++++++++++++++++++++++---------
 1 file changed, 226 insertions(+), 76 deletions(-)

diff --git a/sound/soc/tegra/tegra210_i2s.c b/sound/soc/tegra/tegra210_i2s.c
index 1cb01be76572e..33fb37ad1391d 100644
--- a/sound/soc/tegra/tegra210_i2s.c
+++ b/sound/soc/tegra/tegra210_i2s.c
@@ -302,91 +302,235 @@ static int tegra210_i2s_set_tdm_slot(struct snd_soc_dai *dai,
 	return 0;
 }
 
-static int tegra210_i2s_set_dai_bclk_ratio(struct snd_soc_dai *dai,
-					   unsigned int ratio)
+static int tegra210_i2s_get_loopback(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
 {
-	struct tegra210_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
 
-	i2s->bclk_ratio = ratio;
+	ucontrol->value.integer.value[0] = i2s->loopback;
 
 	return 0;
 }
 
-static int tegra210_i2s_get_control(struct snd_kcontrol *kcontrol,
-				    struct snd_ctl_elem_value *ucontrol)
+static int tegra210_i2s_put_loopback(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	int value = ucontrol->value.integer.value[0];
+
+	if (value == i2s->loopback)
+		return 0;
+
+	i2s->loopback = value;
 
-	if (strstr(kcontrol->id.name, "Loopback"))
-		ucontrol->value.integer.value[0] = i2s->loopback;
-	else if (strstr(kcontrol->id.name, "FSYNC Width"))
-		ucontrol->value.integer.value[0] = i2s->fsync_width;
-	else if (strstr(kcontrol->id.name, "Capture Stereo To Mono"))
-		ucontrol->value.enumerated.item[0] =
-			i2s->stereo_to_mono[I2S_TX_PATH];
-	else if (strstr(kcontrol->id.name, "Capture Mono To Stereo"))
-		ucontrol->value.enumerated.item[0] =
-			i2s->mono_to_stereo[I2S_TX_PATH];
-	else if (strstr(kcontrol->id.name, "Playback Stereo To Mono"))
-		ucontrol->value.enumerated.item[0] =
-			i2s->stereo_to_mono[I2S_RX_PATH];
-	else if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
-		ucontrol->value.enumerated.item[0] =
-			i2s->mono_to_stereo[I2S_RX_PATH];
-	else if (strstr(kcontrol->id.name, "Playback FIFO Threshold"))
-		ucontrol->value.integer.value[0] = i2s->rx_fifo_th;
-	else if (strstr(kcontrol->id.name, "BCLK Ratio"))
-		ucontrol->value.integer.value[0] = i2s->bclk_ratio;
+	regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL, I2S_CTRL_LPBK_MASK,
+			   i2s->loopback << I2S_CTRL_LPBK_SHIFT);
+
+	return 1;
+}
+
+static int tegra210_i2s_get_fsync_width(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+	ucontrol->value.integer.value[0] = i2s->fsync_width;
 
 	return 0;
 }
 
-static int tegra210_i2s_put_control(struct snd_kcontrol *kcontrol,
-				    struct snd_ctl_elem_value *ucontrol)
+static int tegra210_i2s_put_fsync_width(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	int value = ucontrol->value.integer.value[0];
+
+	if (value == i2s->fsync_width)
+		return 0;
+
+	i2s->fsync_width = value;
+
+	/*
+	 * Frame sync width is used only for FSYNC modes and not
+	 * applicable for LRCK modes. Reset value for this field is "0",
+	 * which means the width is one bit clock wide.
+	 * The width requirement may depend on the codec and in such
+	 * cases mixer control is used to update custom values. A value
+	 * of "N" here means, width is "N + 1" bit clock wide.
+	 */
+	regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
+			   I2S_CTRL_FSYNC_WIDTH_MASK,
+			   i2s->fsync_width << I2S_FSYNC_WIDTH_SHIFT);
+
+	return 1;
+}
+
+static int tegra210_i2s_cget_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
 
-	if (strstr(kcontrol->id.name, "Loopback")) {
-		i2s->loopback = ucontrol->value.integer.value[0];
+	ucontrol->value.enumerated.item[0] = i2s->stereo_to_mono[I2S_TX_PATH];
 
-		regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
-				   I2S_CTRL_LPBK_MASK,
-				   i2s->loopback << I2S_CTRL_LPBK_SHIFT);
+	return 0;
+}
 
-	} else if (strstr(kcontrol->id.name, "FSYNC Width")) {
-		/*
-		 * Frame sync width is used only for FSYNC modes and not
-		 * applicable for LRCK modes. Reset value for this field is "0",
-		 * which means the width is one bit clock wide.
-		 * The width requirement may depend on the codec and in such
-		 * cases mixer control is used to update custom values. A value
-		 * of "N" here means, width is "N + 1" bit clock wide.
-		 */
-		i2s->fsync_width = ucontrol->value.integer.value[0];
-
-		regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
-				   I2S_CTRL_FSYNC_WIDTH_MASK,
-				   i2s->fsync_width << I2S_FSYNC_WIDTH_SHIFT);
-
-	} else if (strstr(kcontrol->id.name, "Capture Stereo To Mono")) {
-		i2s->stereo_to_mono[I2S_TX_PATH] =
-			ucontrol->value.enumerated.item[0];
-	} else if (strstr(kcontrol->id.name, "Capture Mono To Stereo")) {
-		i2s->mono_to_stereo[I2S_TX_PATH] =
-			ucontrol->value.enumerated.item[0];
-	} else if (strstr(kcontrol->id.name, "Playback Stereo To Mono")) {
-		i2s->stereo_to_mono[I2S_RX_PATH] =
-			ucontrol->value.enumerated.item[0];
-	} else if (strstr(kcontrol->id.name, "Playback Mono To Stereo")) {
-		i2s->mono_to_stereo[I2S_RX_PATH] =
-			ucontrol->value.enumerated.item[0];
-	} else if (strstr(kcontrol->id.name, "Playback FIFO Threshold")) {
-		i2s->rx_fifo_th = ucontrol->value.integer.value[0];
-	} else if (strstr(kcontrol->id.name, "BCLK Ratio")) {
-		i2s->bclk_ratio = ucontrol->value.integer.value[0];
-	}
+static int tegra210_i2s_cput_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == i2s->stereo_to_mono[I2S_TX_PATH])
+		return 0;
+
+	i2s->stereo_to_mono[I2S_TX_PATH] = value;
+
+	return 1;
+}
+
+static int tegra210_i2s_cget_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+	ucontrol->value.enumerated.item[0] = i2s->mono_to_stereo[I2S_TX_PATH];
+
+	return 0;
+}
+
+static int tegra210_i2s_cput_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == i2s->mono_to_stereo[I2S_TX_PATH])
+		return 0;
+
+	i2s->mono_to_stereo[I2S_TX_PATH] = value;
+
+	return 1;
+}
+
+static int tegra210_i2s_pget_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+	ucontrol->value.enumerated.item[0] = i2s->stereo_to_mono[I2S_RX_PATH];
+
+	return 0;
+}
+
+static int tegra210_i2s_pput_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == i2s->stereo_to_mono[I2S_RX_PATH])
+		return 0;
+
+	i2s->stereo_to_mono[I2S_RX_PATH] = value;
+
+	return 1;
+}
+
+static int tegra210_i2s_pget_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+	ucontrol->value.enumerated.item[0] = i2s->mono_to_stereo[I2S_RX_PATH];
+
+	return 0;
+}
+
+static int tegra210_i2s_pput_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == i2s->mono_to_stereo[I2S_RX_PATH])
+		return 0;
+
+	i2s->mono_to_stereo[I2S_RX_PATH] = value;
+
+	return 1;
+}
+
+static int tegra210_i2s_pget_fifo_th(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+	ucontrol->value.integer.value[0] = i2s->rx_fifo_th;
+
+	return 0;
+}
+
+static int tegra210_i2s_pput_fifo_th(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	int value = ucontrol->value.integer.value[0];
+
+	if (value == i2s->rx_fifo_th)
+		return 0;
+
+	i2s->rx_fifo_th = value;
+
+	return 1;
+}
+
+static int tegra210_i2s_get_bclk_ratio(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+	ucontrol->value.integer.value[0] = i2s->bclk_ratio;
+
+	return 0;
+}
+
+static int tegra210_i2s_put_bclk_ratio(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+	int value = ucontrol->value.integer.value[0];
+
+	if (value == i2s->bclk_ratio)
+		return 0;
+
+	i2s->bclk_ratio = value;
+
+	return 1;
+}
+
+static int tegra210_i2s_set_dai_bclk_ratio(struct snd_soc_dai *dai,
+					   unsigned int ratio)
+{
+	struct tegra210_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+	i2s->bclk_ratio = ratio;
 
 	return 0;
 }
@@ -604,22 +748,28 @@ static const struct soc_enum tegra210_i2s_stereo_conv_enum =
 			tegra210_i2s_stereo_conv_text);
 
 static const struct snd_kcontrol_new tegra210_i2s_controls[] = {
-	SOC_SINGLE_EXT("Loopback", 0, 0, 1, 0, tegra210_i2s_get_control,
-		       tegra210_i2s_put_control),
-	SOC_SINGLE_EXT("FSYNC Width", 0, 0, 255, 0, tegra210_i2s_get_control,
-		       tegra210_i2s_put_control),
+	SOC_SINGLE_EXT("Loopback", 0, 0, 1, 0, tegra210_i2s_get_loopback,
+		       tegra210_i2s_put_loopback),
+	SOC_SINGLE_EXT("FSYNC Width", 0, 0, 255, 0,
+		       tegra210_i2s_get_fsync_width,
+		       tegra210_i2s_put_fsync_width),
 	SOC_ENUM_EXT("Capture Stereo To Mono", tegra210_i2s_stereo_conv_enum,
-		     tegra210_i2s_get_control, tegra210_i2s_put_control),
+		     tegra210_i2s_cget_stereo_to_mono,
+		     tegra210_i2s_cput_stereo_to_mono),
 	SOC_ENUM_EXT("Capture Mono To Stereo", tegra210_i2s_mono_conv_enum,
-		     tegra210_i2s_get_control, tegra210_i2s_put_control),
+		     tegra210_i2s_cget_mono_to_stereo,
+		     tegra210_i2s_cput_mono_to_stereo),
 	SOC_ENUM_EXT("Playback Stereo To Mono", tegra210_i2s_stereo_conv_enum,
-		     tegra210_i2s_get_control, tegra210_i2s_put_control),
+		     tegra210_i2s_pget_mono_to_stereo,
+		     tegra210_i2s_pput_mono_to_stereo),
 	SOC_ENUM_EXT("Playback Mono To Stereo", tegra210_i2s_mono_conv_enum,
-		     tegra210_i2s_get_control, tegra210_i2s_put_control),
+		     tegra210_i2s_pget_stereo_to_mono,
+		     tegra210_i2s_pput_stereo_to_mono),
 	SOC_SINGLE_EXT("Playback FIFO Threshold", 0, 0, I2S_RX_FIFO_DEPTH - 1,
-		       0, tegra210_i2s_get_control, tegra210_i2s_put_control),
-	SOC_SINGLE_EXT("BCLK Ratio", 0, 0, INT_MAX, 0, tegra210_i2s_get_control,
-		       tegra210_i2s_put_control),
+		       0, tegra210_i2s_pget_fifo_th, tegra210_i2s_pput_fifo_th),
+	SOC_SINGLE_EXT("BCLK Ratio", 0, 0, INT_MAX, 0,
+		       tegra210_i2s_get_bclk_ratio,
+		       tegra210_i2s_put_bclk_ratio),
 };
 
 static const struct snd_soc_dapm_widget tegra210_i2s_widgets[] = {
-- 
GitLab


From 256aa15aac6d3c585524c5af82d2d0b5e16211a7 Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:37:04 +0530
Subject: [PATCH 1956/4878] ASoC: tegra: Fix kcontrol put callback in DMIC

commit a347dfa10262fa0a10e2b1970ea0194e3d4a3251 upstream.

The kcontrol put callback is expected to return 1 when there is change
in HW or when the update is acknowledged by driver. This would ensure
that change notifications are sent to subscribed applications. Update
the DMIC driver accordingly.

Fixes: 8c8ff982e9e2 ("ASoC: tegra: Add Tegra210 based DMIC driver")
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-10-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_dmic.c | 183 ++++++++++++++++++++++++++------
 1 file changed, 149 insertions(+), 34 deletions(-)

diff --git a/sound/soc/tegra/tegra210_dmic.c b/sound/soc/tegra/tegra210_dmic.c
index 3ed79b34a987a..dd3481ae3372f 100644
--- a/sound/soc/tegra/tegra210_dmic.c
+++ b/sound/soc/tegra/tegra210_dmic.c
@@ -156,50 +156,162 @@ static int tegra210_dmic_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int tegra210_dmic_get_control(struct snd_kcontrol *kcontrol,
+static int tegra210_dmic_get_boost_gain(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+
+	ucontrol->value.integer.value[0] = dmic->boost_gain;
+
+	return 0;
+}
+
+static int tegra210_dmic_put_boost_gain(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+	int value = ucontrol->value.integer.value[0];
+
+	if (value == dmic->boost_gain)
+		return 0;
+
+	dmic->boost_gain = value;
+
+	return 1;
+}
+
+static int tegra210_dmic_get_ch_select(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+
+	ucontrol->value.enumerated.item[0] = dmic->ch_select;
+
+	return 0;
+}
+
+static int tegra210_dmic_put_ch_select(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dmic->ch_select)
+		return 0;
+
+	dmic->ch_select = value;
+
+	return 1;
+}
+
+static int tegra210_dmic_get_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+
+	ucontrol->value.enumerated.item[0] = dmic->mono_to_stereo;
+
+	return 0;
+}
+
+static int tegra210_dmic_put_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dmic->mono_to_stereo)
+		return 0;
+
+	dmic->mono_to_stereo = value;
+
+	return 1;
+}
+
+static int tegra210_dmic_get_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+
+	ucontrol->value.enumerated.item[0] = dmic->stereo_to_mono;
+
+	return 0;
+}
+
+static int tegra210_dmic_put_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dmic->stereo_to_mono)
+		return 0;
+
+	dmic->stereo_to_mono = value;
+
+	return 1;
+}
+
+static int tegra210_dmic_get_osr_val(struct snd_kcontrol *kcontrol,
 				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
 
-	if (strstr(kcontrol->id.name, "Boost Gain Volume"))
-		ucontrol->value.integer.value[0] = dmic->boost_gain;
-	else if (strstr(kcontrol->id.name, "Channel Select"))
-		ucontrol->value.enumerated.item[0] = dmic->ch_select;
-	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		ucontrol->value.enumerated.item[0] = dmic->mono_to_stereo;
-	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		ucontrol->value.enumerated.item[0] = dmic->stereo_to_mono;
-	else if (strstr(kcontrol->id.name, "OSR Value"))
-		ucontrol->value.enumerated.item[0] = dmic->osr_val;
-	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		ucontrol->value.enumerated.item[0] = dmic->lrsel;
+	ucontrol->value.enumerated.item[0] = dmic->osr_val;
 
 	return 0;
 }
 
-static int tegra210_dmic_put_control(struct snd_kcontrol *kcontrol,
+static int tegra210_dmic_put_osr_val(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dmic->osr_val)
+		return 0;
+
+	dmic->osr_val = value;
+
+	return 1;
+}
+
+static int tegra210_dmic_get_pol_sel(struct snd_kcontrol *kcontrol,
 				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
 	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
 
-	if (strstr(kcontrol->id.name, "Boost Gain Volume"))
-		dmic->boost_gain = ucontrol->value.integer.value[0];
-	else if (strstr(kcontrol->id.name, "Channel Select"))
-		dmic->ch_select = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		dmic->mono_to_stereo = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		dmic->stereo_to_mono = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "OSR Value"))
-		dmic->osr_val = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		dmic->lrsel = ucontrol->value.enumerated.item[0];
+	ucontrol->value.enumerated.item[0] = dmic->lrsel;
 
 	return 0;
 }
 
+static int tegra210_dmic_put_pol_sel(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol);
+	struct tegra210_dmic *dmic = snd_soc_component_get_drvdata(comp);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dmic->lrsel)
+		return 0;
+
+	dmic->lrsel = value;
+
+	return 1;
+}
+
 static const struct snd_soc_dai_ops tegra210_dmic_dai_ops = {
 	.hw_params	= tegra210_dmic_hw_params,
 };
@@ -286,19 +398,22 @@ static const struct soc_enum tegra210_dmic_lrsel_enum =
 
 static const struct snd_kcontrol_new tegra210_dmic_controls[] = {
 	SOC_SINGLE_EXT("Boost Gain Volume", 0, 0, MAX_BOOST_GAIN, 0,
-		       tegra210_dmic_get_control, tegra210_dmic_put_control),
+		       tegra210_dmic_get_boost_gain,
+		       tegra210_dmic_put_boost_gain),
 	SOC_ENUM_EXT("Channel Select", tegra210_dmic_ch_enum,
-		     tegra210_dmic_get_control, tegra210_dmic_put_control),
+		     tegra210_dmic_get_ch_select, tegra210_dmic_put_ch_select),
 	SOC_ENUM_EXT("Mono To Stereo",
-		     tegra210_dmic_mono_conv_enum, tegra210_dmic_get_control,
-		     tegra210_dmic_put_control),
+		     tegra210_dmic_mono_conv_enum,
+		     tegra210_dmic_get_mono_to_stereo,
+		     tegra210_dmic_put_mono_to_stereo),
 	SOC_ENUM_EXT("Stereo To Mono",
-		     tegra210_dmic_stereo_conv_enum, tegra210_dmic_get_control,
-		     tegra210_dmic_put_control),
+		     tegra210_dmic_stereo_conv_enum,
+		     tegra210_dmic_get_stereo_to_mono,
+		     tegra210_dmic_put_stereo_to_mono),
 	SOC_ENUM_EXT("OSR Value", tegra210_dmic_osr_enum,
-		     tegra210_dmic_get_control, tegra210_dmic_put_control),
+		     tegra210_dmic_get_osr_val, tegra210_dmic_put_osr_val),
 	SOC_ENUM_EXT("LR Polarity Select", tegra210_dmic_lrsel_enum,
-		     tegra210_dmic_get_control, tegra210_dmic_put_control),
+		     tegra210_dmic_get_pol_sel, tegra210_dmic_put_pol_sel),
 };
 
 static const struct snd_soc_component_driver tegra210_dmic_compnt = {
-- 
GitLab


From fe4eb5297ac3693d21e2b6b1dece82121ab25b26 Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:37:05 +0530
Subject: [PATCH 1957/4878] ASoC: tegra: Fix kcontrol put callback in DSPK

commit d6202a57e79d102271d38c34481fedc9d4c79694 upstream.

The kcontrol put callback is expected to return 1 when there is change
in HW or when the update is acknowledged by driver. This would ensure
that change notifications are sent to subscribed applications. Update
the DSPK driver accordingly.

Fixes: 327ef6470266 ("ASoC: tegra: Add Tegra186 based DSPK driver")
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-11-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra186_dspk.c | 178 ++++++++++++++++++++++++++------
 1 file changed, 146 insertions(+), 32 deletions(-)

diff --git a/sound/soc/tegra/tegra186_dspk.c b/sound/soc/tegra/tegra186_dspk.c
index 0a92e67679761..373189e5907b9 100644
--- a/sound/soc/tegra/tegra186_dspk.c
+++ b/sound/soc/tegra/tegra186_dspk.c
@@ -26,50 +26,162 @@ static const struct reg_default tegra186_dspk_reg_defaults[] = {
 	{ TEGRA186_DSPK_CODEC_CTRL,  0x03000000 },
 };
 
-static int tegra186_dspk_get_control(struct snd_kcontrol *kcontrol,
+static int tegra186_dspk_get_fifo_th(struct snd_kcontrol *kcontrol,
 				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
 	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
 
-	if (strstr(kcontrol->id.name, "FIFO Threshold"))
-		ucontrol->value.integer.value[0] = dspk->rx_fifo_th;
-	else if (strstr(kcontrol->id.name, "OSR Value"))
-		ucontrol->value.enumerated.item[0] = dspk->osr_val;
-	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		ucontrol->value.enumerated.item[0] = dspk->lrsel;
-	else if (strstr(kcontrol->id.name, "Channel Select"))
-		ucontrol->value.enumerated.item[0] = dspk->ch_sel;
-	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		ucontrol->value.enumerated.item[0] = dspk->mono_to_stereo;
-	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		ucontrol->value.enumerated.item[0] = dspk->stereo_to_mono;
+	ucontrol->value.integer.value[0] = dspk->rx_fifo_th;
 
 	return 0;
 }
 
-static int tegra186_dspk_put_control(struct snd_kcontrol *kcontrol,
+static int tegra186_dspk_put_fifo_th(struct snd_kcontrol *kcontrol,
 				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
 	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+	int value = ucontrol->value.integer.value[0];
 
-	if (strstr(kcontrol->id.name, "FIFO Threshold"))
-		dspk->rx_fifo_th = ucontrol->value.integer.value[0];
-	else if (strstr(kcontrol->id.name, "OSR Value"))
-		dspk->osr_val = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "LR Polarity Select"))
-		dspk->lrsel = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "Channel Select"))
-		dspk->ch_sel = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "Mono To Stereo"))
-		dspk->mono_to_stereo = ucontrol->value.enumerated.item[0];
-	else if (strstr(kcontrol->id.name, "Stereo To Mono"))
-		dspk->stereo_to_mono = ucontrol->value.enumerated.item[0];
+	if (value == dspk->rx_fifo_th)
+		return 0;
+
+	dspk->rx_fifo_th = value;
+
+	return 1;
+}
+
+static int tegra186_dspk_get_osr_val(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = dspk->osr_val;
+
+	return 0;
+}
+
+static int tegra186_dspk_put_osr_val(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dspk->osr_val)
+		return 0;
+
+	dspk->osr_val = value;
+
+	return 1;
+}
+
+static int tegra186_dspk_get_pol_sel(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = dspk->lrsel;
+
+	return 0;
+}
+
+static int tegra186_dspk_put_pol_sel(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dspk->lrsel)
+		return 0;
+
+	dspk->lrsel = value;
+
+	return 1;
+}
+
+static int tegra186_dspk_get_ch_sel(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = dspk->ch_sel;
+
+	return 0;
+}
+
+static int tegra186_dspk_put_ch_sel(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dspk->ch_sel)
+		return 0;
+
+	dspk->ch_sel = value;
+
+	return 1;
+}
+
+static int tegra186_dspk_get_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = dspk->mono_to_stereo;
+
+	return 0;
+}
+
+static int tegra186_dspk_put_mono_to_stereo(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dspk->mono_to_stereo)
+		return 0;
+
+	dspk->mono_to_stereo = value;
+
+	return 1;
+}
+
+static int tegra186_dspk_get_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = dspk->stereo_to_mono;
 
 	return 0;
 }
 
+static int tegra186_dspk_put_stereo_to_mono(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
+	struct tegra186_dspk *dspk = snd_soc_component_get_drvdata(codec);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+
+	if (value == dspk->stereo_to_mono)
+		return 0;
+
+	dspk->stereo_to_mono = value;
+
+	return 1;
+}
+
 static int __maybe_unused tegra186_dspk_runtime_suspend(struct device *dev)
 {
 	struct tegra186_dspk *dspk = dev_get_drvdata(dev);
@@ -278,17 +390,19 @@ static const struct soc_enum tegra186_dspk_lrsel_enum =
 static const struct snd_kcontrol_new tegrat186_dspk_controls[] = {
 	SOC_SINGLE_EXT("FIFO Threshold", SND_SOC_NOPM, 0,
 		       TEGRA186_DSPK_RX_FIFO_DEPTH - 1, 0,
-		       tegra186_dspk_get_control, tegra186_dspk_put_control),
+		       tegra186_dspk_get_fifo_th, tegra186_dspk_put_fifo_th),
 	SOC_ENUM_EXT("OSR Value", tegra186_dspk_osr_enum,
-		     tegra186_dspk_get_control, tegra186_dspk_put_control),
+		     tegra186_dspk_get_osr_val, tegra186_dspk_put_osr_val),
 	SOC_ENUM_EXT("LR Polarity Select", tegra186_dspk_lrsel_enum,
-		     tegra186_dspk_get_control, tegra186_dspk_put_control),
+		     tegra186_dspk_get_pol_sel, tegra186_dspk_put_pol_sel),
 	SOC_ENUM_EXT("Channel Select", tegra186_dspk_ch_sel_enum,
-		     tegra186_dspk_get_control, tegra186_dspk_put_control),
+		     tegra186_dspk_get_ch_sel, tegra186_dspk_put_ch_sel),
 	SOC_ENUM_EXT("Mono To Stereo", tegra186_dspk_mono_conv_enum,
-		     tegra186_dspk_get_control, tegra186_dspk_put_control),
+		     tegra186_dspk_get_mono_to_stereo,
+		     tegra186_dspk_put_mono_to_stereo),
 	SOC_ENUM_EXT("Stereo To Mono", tegra186_dspk_stereo_conv_enum,
-		     tegra186_dspk_get_control, tegra186_dspk_put_control),
+		     tegra186_dspk_get_stereo_to_mono,
+		     tegra186_dspk_put_stereo_to_mono),
 };
 
 static const struct snd_soc_component_driver tegra186_dspk_cmpnt = {
-- 
GitLab


From 4afb32090a1518e3325970ee9eb6ddbd9e3dd6ef Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 18 Nov 2021 12:37:06 +0530
Subject: [PATCH 1958/4878] ASoC: tegra: Fix kcontrol put callback in AHUB

commit a4e37950c9e9b126f9cbee79b8ab94a94646dcf1 upstream.

The kcontrol put callback is expected to return 1 when there is change
in HW or when the update is acknowledged by driver. This would ensure
that change notifications are sent to subscribed applications. Update
the AHUB driver accordingly.

Fixes: 16e1bcc2caf4 ("ASoC: tegra: Add Tegra210 based AHUB driver")
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/1637219231-406-12-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/tegra/tegra210_ahub.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/sound/soc/tegra/tegra210_ahub.c b/sound/soc/tegra/tegra210_ahub.c
index 66287a7c9865d..1b2f7cb8c6adc 100644
--- a/sound/soc/tegra/tegra210_ahub.c
+++ b/sound/soc/tegra/tegra210_ahub.c
@@ -62,6 +62,7 @@ static int tegra_ahub_put_value_enum(struct snd_kcontrol *kctl,
 	unsigned int *item = uctl->value.enumerated.item;
 	unsigned int value = e->values[item[0]];
 	unsigned int i, bit_pos, reg_idx = 0, reg_val = 0;
+	int change = 0;
 
 	if (item[0] >= e->items)
 		return -EINVAL;
@@ -86,12 +87,14 @@ static int tegra_ahub_put_value_enum(struct snd_kcontrol *kctl,
 
 		/* Update widget power if state has changed */
 		if (snd_soc_component_test_bits(cmpnt, update[i].reg,
-						update[i].mask, update[i].val))
-			snd_soc_dapm_mux_update_power(dapm, kctl, item[0], e,
-						      &update[i]);
+						update[i].mask,
+						update[i].val))
+			change |= snd_soc_dapm_mux_update_power(dapm, kctl,
+								item[0], e,
+								&update[i]);
 	}
 
-	return 0;
+	return change;
 }
 
 static struct snd_soc_dai_driver tegra210_ahub_dais[] = {
-- 
GitLab


From 35b40f724c4ef0f683d94dab3af9ab38261d782b Mon Sep 17 00:00:00 2001
From: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Date: Sun, 21 Nov 2021 04:16:07 +0000
Subject: [PATCH 1959/4878] rxrpc: Fix rxrpc_peer leak in
 rxrpc_look_up_bundle()

commit ca77fba821351190777b236ce749d7c4d353102e upstream.

Need to call rxrpc_put_peer() for bundle candidate before kfree() as it
holds a ref to rxrpc_peer.

[DH: v2: Changed to abstract out the bundle freeing code into a function]

Fixes: 245500d853e9 ("rxrpc: Rewrite the client connection manager")
Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/20211121041608.133740-1-eiichi.tsukata@nutanix.com/ # v1
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/rxrpc/conn_client.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 7e574c75be8e1..f5fb223aba82a 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -135,16 +135,20 @@ struct rxrpc_bundle *rxrpc_get_bundle(struct rxrpc_bundle *bundle)
 	return bundle;
 }
 
+static void rxrpc_free_bundle(struct rxrpc_bundle *bundle)
+{
+	rxrpc_put_peer(bundle->params.peer);
+	kfree(bundle);
+}
+
 void rxrpc_put_bundle(struct rxrpc_bundle *bundle)
 {
 	unsigned int d = bundle->debug_id;
 	unsigned int u = atomic_dec_return(&bundle->usage);
 
 	_debug("PUT B=%x %u", d, u);
-	if (u == 0) {
-		rxrpc_put_peer(bundle->params.peer);
-		kfree(bundle);
-	}
+	if (u == 0)
+		rxrpc_free_bundle(bundle);
 }
 
 /*
@@ -334,7 +338,7 @@ static struct rxrpc_bundle *rxrpc_look_up_bundle(struct rxrpc_conn_parameters *c
 	return candidate;
 
 found_bundle_free:
-	kfree(candidate);
+	rxrpc_free_bundle(candidate);
 found_bundle:
 	rxrpc_get_bundle(bundle);
 	spin_unlock(&local->client_bundles_lock);
-- 
GitLab


From 60f0b9c42cb80833a03ca57c1c8b078d716e71d1 Mon Sep 17 00:00:00 2001
From: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Date: Sun, 21 Nov 2021 04:16:08 +0000
Subject: [PATCH 1960/4878] rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()

commit beacff50edbd6c9659a6f15fc7f6126909fade29 upstream.

Need to call rxrpc_put_local() for peer candidate before kfree() as it
holds a ref to rxrpc_local.

[DH: v2: Changed to abstract the peer freeing code out into a function]

Fixes: 9ebeddef58c4 ("rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record")
Signed-off-by: Eiichi Tsukata <eiichi.tsukata@nutanix.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/all/20211121041608.133740-2-eiichi.tsukata@nutanix.com/ # v1
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/rxrpc/peer_object.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c
index 68396d0520525..0298fe2ad6d32 100644
--- a/net/rxrpc/peer_object.c
+++ b/net/rxrpc/peer_object.c
@@ -299,6 +299,12 @@ static struct rxrpc_peer *rxrpc_create_peer(struct rxrpc_sock *rx,
 	return peer;
 }
 
+static void rxrpc_free_peer(struct rxrpc_peer *peer)
+{
+	rxrpc_put_local(peer->local);
+	kfree_rcu(peer, rcu);
+}
+
 /*
  * Set up a new incoming peer.  There shouldn't be any other matching peers
  * since we've already done a search in the list from the non-reentrant context
@@ -365,7 +371,7 @@ struct rxrpc_peer *rxrpc_lookup_peer(struct rxrpc_sock *rx,
 		spin_unlock_bh(&rxnet->peer_hash_lock);
 
 		if (peer)
-			kfree(candidate);
+			rxrpc_free_peer(candidate);
 		else
 			peer = candidate;
 	}
@@ -420,8 +426,7 @@ static void __rxrpc_put_peer(struct rxrpc_peer *peer)
 	list_del_init(&peer->keepalive_link);
 	spin_unlock_bh(&rxnet->peer_hash_lock);
 
-	rxrpc_put_local(peer->local);
-	kfree_rcu(peer, rcu);
+	rxrpc_free_peer(peer);
 }
 
 /*
@@ -457,8 +462,7 @@ void rxrpc_put_peer_locked(struct rxrpc_peer *peer)
 	if (n == 0) {
 		hash_del_rcu(&peer->hash_link);
 		list_del_init(&peer->keepalive_link);
-		rxrpc_put_local(peer->local);
-		kfree_rcu(peer, rcu);
+		rxrpc_free_peer(peer);
 	}
 }
 
-- 
GitLab


From acef1c2b15964c9068de2f034c893cb7f72c843b Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Mon, 22 Nov 2021 17:22:54 -0600
Subject: [PATCH 1961/4878] ALSA: intel-dsp-config: add quirk for CML devices
 based on ES8336 codec

commit ae26c08e6c8071ba8febb0c7c0829da96c75248c upstream.

We've added quirks for ESS8336 but missed CML, add quirks for both LP
and H versions.

BugLink: https://github.com/thesofproject/linux/issues/3248
Fixes: 9d36ceab9415 ("ALSA: intel-dsp-config: add quirk for APL/GLK/TGL devices based on ES8336 codec")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20211122232254.23362-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/hda/intel-dsp-config.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c
index fc61571a3ac73..2a5ba9dca6b08 100644
--- a/sound/hda/intel-dsp-config.c
+++ b/sound/hda/intel-dsp-config.c
@@ -251,6 +251,11 @@ static const struct config_entry config_table[] = {
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0x02c8,
 	},
+	{
+		.flags = FLAG_SOF,
+		.device = 0x02c8,
+		.codec_hid = "ESSX8336",
+	},
 /* Cometlake-H */
 	{
 		.flags = FLAG_SOF,
@@ -275,6 +280,11 @@ static const struct config_entry config_table[] = {
 		.flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 		.device = 0x06c8,
 	},
+		{
+		.flags = FLAG_SOF,
+		.device = 0x06c8,
+		.codec_hid = "ESSX8336",
+	},
 #endif
 
 /* Icelake */
-- 
GitLab


From 3260b8d12057faa9f7428fc7a2709de1ad39f731 Mon Sep 17 00:00:00 2001
From: Sven Schuchmann <schuchmann@schleissheimer.de>
Date: Sat, 27 Nov 2021 11:47:07 +0100
Subject: [PATCH 1962/4878] net: usb: lan78xx: lan78xx_phy_init(): use PHY_POLL
 instead of "0" if no IRQ is available

commit 817b653160db9852d5a0498a31f047e18ce27e5b upstream.

On most systems request for IRQ 0 will fail, phylib will print an error message
and fall back to polling. To fix this set the phydev->irq to PHY_POLL if no IRQ
is available.

Fixes: cc89c323a30e ("lan78xx: Use irq_domain for phy interrupt from USB Int. EP")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sven Schuchmann <schuchmann@schleissheimer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/lan78xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index a4f9912b36366..c666e990900b9 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2128,7 +2128,7 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
 	if (dev->domain_data.phyirq > 0)
 		phydev->irq = dev->domain_data.phyirq;
 	else
-		phydev->irq = 0;
+		phydev->irq = PHY_POLL;
 	netdev_dbg(dev->net, "phydev->irq = %d\n", phydev->irq);
 
 	/* set to AUTOMDIX */
-- 
GitLab


From dde240695d97de12a5d9f8ebe520f8dd655d5b35 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Mon, 29 Nov 2021 22:53:27 +0100
Subject: [PATCH 1963/4878] net: marvell: mvpp2: Fix the computation of shared
 CPUs

commit b83f5ac7d922e69a109261f5f940eebbd4e514c4 upstream.

'bitmap_fill()' fills a bitmap one 'long' at a time.
It is likely that an exact number of bits is expected.

Use 'bitmap_set()' instead in order not to set unexpected bits.

Fixes: e531f76757eb ("net: mvpp2: handle cases where more CPUs are available than s/w threads")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index e220d44df2e65..f39841b0a248c 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -6918,7 +6918,7 @@ static int mvpp2_probe(struct platform_device *pdev)
 
 	shared = num_present_cpus() - priv->nthreads;
 	if (shared > 0)
-		bitmap_fill(&priv->lock_map,
+		bitmap_set(&priv->lock_map, 0,
 			    min_t(int, shared, MVPP2_MAX_THREADS));
 
 	for (i = 0; i < MVPP2_MAX_THREADS; i++) {
-- 
GitLab


From e26dab79e16b73efe878335d8cbab8a03f4995f4 Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Tue, 30 Nov 2021 12:05:54 +0800
Subject: [PATCH 1964/4878] dpaa2-eth: destroy workqueue at the end of remove
 function

commit f4a8adbfe4841491b60c14fe610571e1422359f9 upstream.

The commit c55211892f46 ("dpaa2-eth: support PTP Sync packet one-step
timestamping") forgets to destroy workqueue at the end of remove
function.

Fix this by adding destroy_workqueue before fsl_mc_portal_free and
free_netdev.

Fixes: c55211892f46 ("dpaa2-eth: support PTP Sync packet one-step timestamping")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index a4ef35216e2f7..f06d88c471d0f 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -4432,6 +4432,8 @@ static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
 
 	fsl_mc_portal_free(priv->mc_io);
 
+	destroy_workqueue(priv->dpaa2_ptp_wq);
+
 	dev_dbg(net_dev->dev.parent, "Removed interface %s\n", net_dev->name);
 
 	free_netdev(net_dev);
-- 
GitLab


From fa973bf5fd0fda6f0bf9a5d3d403078824dc27ac Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 30 Nov 2021 09:01:55 -0800
Subject: [PATCH 1965/4878] net: annotate data-races on txq->xmit_lock_owner

commit 7a10d8c810cfad3e79372d7d1c77899d86cd6662 upstream.

syzbot found that __dev_queue_xmit() is reading txq->xmit_lock_owner
without annotations.

No serious issue there, let's document what is happening there.

BUG: KCSAN: data-race in __dev_queue_xmit / __dev_queue_xmit

write to 0xffff888139d09484 of 4 bytes by interrupt on cpu 0:
 __netif_tx_unlock include/linux/netdevice.h:4437 [inline]
 __dev_queue_xmit+0x948/0xf70 net/core/dev.c:4229
 dev_queue_xmit_accel+0x19/0x20 net/core/dev.c:4265
 macvlan_queue_xmit drivers/net/macvlan.c:543 [inline]
 macvlan_start_xmit+0x2b3/0x3d0 drivers/net/macvlan.c:567
 __netdev_start_xmit include/linux/netdevice.h:4987 [inline]
 netdev_start_xmit include/linux/netdevice.h:5001 [inline]
 xmit_one+0x105/0x2f0 net/core/dev.c:3590
 dev_hard_start_xmit+0x72/0x120 net/core/dev.c:3606
 sch_direct_xmit+0x1b2/0x7c0 net/sched/sch_generic.c:342
 __dev_xmit_skb+0x83d/0x1370 net/core/dev.c:3817
 __dev_queue_xmit+0x590/0xf70 net/core/dev.c:4194
 dev_queue_xmit+0x13/0x20 net/core/dev.c:4259
 neigh_hh_output include/net/neighbour.h:511 [inline]
 neigh_output include/net/neighbour.h:525 [inline]
 ip6_finish_output2+0x995/0xbb0 net/ipv6/ip6_output.c:126
 __ip6_finish_output net/ipv6/ip6_output.c:191 [inline]
 ip6_finish_output+0x444/0x4c0 net/ipv6/ip6_output.c:201
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip6_output+0x10e/0x210 net/ipv6/ip6_output.c:224
 dst_output include/net/dst.h:450 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ndisc_send_skb+0x486/0x610 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x3b0/0x3e0 net/ipv6/ndisc.c:702
 addrconf_rs_timer+0x370/0x540 net/ipv6/addrconf.c:3898
 call_timer_fn+0x2e/0x240 kernel/time/timer.c:1421
 expire_timers+0x116/0x240 kernel/time/timer.c:1466
 __run_timers+0x368/0x410 kernel/time/timer.c:1734
 run_timer_softirq+0x2e/0x60 kernel/time/timer.c:1747
 __do_softirq+0x158/0x2de kernel/softirq.c:558
 __irq_exit_rcu kernel/softirq.c:636 [inline]
 irq_exit_rcu+0x37/0x70 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20

read to 0xffff888139d09484 of 4 bytes by interrupt on cpu 1:
 __dev_queue_xmit+0x5e3/0xf70 net/core/dev.c:4213
 dev_queue_xmit_accel+0x19/0x20 net/core/dev.c:4265
 macvlan_queue_xmit drivers/net/macvlan.c:543 [inline]
 macvlan_start_xmit+0x2b3/0x3d0 drivers/net/macvlan.c:567
 __netdev_start_xmit include/linux/netdevice.h:4987 [inline]
 netdev_start_xmit include/linux/netdevice.h:5001 [inline]
 xmit_one+0x105/0x2f0 net/core/dev.c:3590
 dev_hard_start_xmit+0x72/0x120 net/core/dev.c:3606
 sch_direct_xmit+0x1b2/0x7c0 net/sched/sch_generic.c:342
 __dev_xmit_skb+0x83d/0x1370 net/core/dev.c:3817
 __dev_queue_xmit+0x590/0xf70 net/core/dev.c:4194
 dev_queue_xmit+0x13/0x20 net/core/dev.c:4259
 neigh_resolve_output+0x3db/0x410 net/core/neighbour.c:1523
 neigh_output include/net/neighbour.h:527 [inline]
 ip6_finish_output2+0x9be/0xbb0 net/ipv6/ip6_output.c:126
 __ip6_finish_output net/ipv6/ip6_output.c:191 [inline]
 ip6_finish_output+0x444/0x4c0 net/ipv6/ip6_output.c:201
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip6_output+0x10e/0x210 net/ipv6/ip6_output.c:224
 dst_output include/net/dst.h:450 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 ndisc_send_skb+0x486/0x610 net/ipv6/ndisc.c:508
 ndisc_send_rs+0x3b0/0x3e0 net/ipv6/ndisc.c:702
 addrconf_rs_timer+0x370/0x540 net/ipv6/addrconf.c:3898
 call_timer_fn+0x2e/0x240 kernel/time/timer.c:1421
 expire_timers+0x116/0x240 kernel/time/timer.c:1466
 __run_timers+0x368/0x410 kernel/time/timer.c:1734
 run_timer_softirq+0x2e/0x60 kernel/time/timer.c:1747
 __do_softirq+0x158/0x2de kernel/softirq.c:558
 __irq_exit_rcu kernel/softirq.c:636 [inline]
 irq_exit_rcu+0x37/0x70 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x8d/0xb0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 kcsan_setup_watchpoint+0x94/0x420 kernel/kcsan/core.c:443
 folio_test_anon include/linux/page-flags.h:581 [inline]
 PageAnon include/linux/page-flags.h:586 [inline]
 zap_pte_range+0x5ac/0x10e0 mm/memory.c:1347
 zap_pmd_range mm/memory.c:1467 [inline]
 zap_pud_range mm/memory.c:1496 [inline]
 zap_p4d_range mm/memory.c:1517 [inline]
 unmap_page_range+0x2dc/0x3d0 mm/memory.c:1538
 unmap_single_vma+0x157/0x210 mm/memory.c:1583
 unmap_vmas+0xd0/0x180 mm/memory.c:1615
 exit_mmap+0x23d/0x470 mm/mmap.c:3170
 __mmput+0x27/0x1b0 kernel/fork.c:1113
 mmput+0x3d/0x50 kernel/fork.c:1134
 exit_mm+0xdb/0x170 kernel/exit.c:507
 do_exit+0x608/0x17a0 kernel/exit.c:819
 do_group_exit+0xce/0x180 kernel/exit.c:929
 get_signal+0xfc3/0x1550 kernel/signal.c:2852
 arch_do_signal_or_restart+0x8c/0x2e0 arch/x86/kernel/signal.c:868
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x113/0x190 kernel/entry/common.c:207
 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
 syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:300
 do_syscall_64+0x50/0xd0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00000000 -> 0xffffffff

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 28712 Comm: syz-executor.0 Tainted: G        W         5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20211130170155.2331929-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/netdevice.h | 19 +++++++++++++------
 net/core/dev.c            |  5 ++++-
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4fdeccf223784..3476d20b75d49 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4212,7 +4212,8 @@ static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits)
 static inline void __netif_tx_lock(struct netdev_queue *txq, int cpu)
 {
 	spin_lock(&txq->_xmit_lock);
-	txq->xmit_lock_owner = cpu;
+	/* Pairs with READ_ONCE() in __dev_queue_xmit() */
+	WRITE_ONCE(txq->xmit_lock_owner, cpu);
 }
 
 static inline bool __netif_tx_acquire(struct netdev_queue *txq)
@@ -4229,26 +4230,32 @@ static inline void __netif_tx_release(struct netdev_queue *txq)
 static inline void __netif_tx_lock_bh(struct netdev_queue *txq)
 {
 	spin_lock_bh(&txq->_xmit_lock);
-	txq->xmit_lock_owner = smp_processor_id();
+	/* Pairs with READ_ONCE() in __dev_queue_xmit() */
+	WRITE_ONCE(txq->xmit_lock_owner, smp_processor_id());
 }
 
 static inline bool __netif_tx_trylock(struct netdev_queue *txq)
 {
 	bool ok = spin_trylock(&txq->_xmit_lock);
-	if (likely(ok))
-		txq->xmit_lock_owner = smp_processor_id();
+
+	if (likely(ok)) {
+		/* Pairs with READ_ONCE() in __dev_queue_xmit() */
+		WRITE_ONCE(txq->xmit_lock_owner, smp_processor_id());
+	}
 	return ok;
 }
 
 static inline void __netif_tx_unlock(struct netdev_queue *txq)
 {
-	txq->xmit_lock_owner = -1;
+	/* Pairs with READ_ONCE() in __dev_queue_xmit() */
+	WRITE_ONCE(txq->xmit_lock_owner, -1);
 	spin_unlock(&txq->_xmit_lock);
 }
 
 static inline void __netif_tx_unlock_bh(struct netdev_queue *txq)
 {
-	txq->xmit_lock_owner = -1;
+	/* Pairs with READ_ONCE() in __dev_queue_xmit() */
+	WRITE_ONCE(txq->xmit_lock_owner, -1);
 	spin_unlock_bh(&txq->_xmit_lock);
 }
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 7dd7b9fb600c8..60cf3cd0c282f 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4147,7 +4147,10 @@ static int __dev_queue_xmit(struct sk_buff *skb, struct net_device *sb_dev)
 	if (dev->flags & IFF_UP) {
 		int cpu = smp_processor_id(); /* ok because BHs are off */
 
-		if (txq->xmit_lock_owner != cpu) {
+		/* Other cpus might concurrently change txq->xmit_lock_owner
+		 * to -1 or to their cpu id, but not to our id.
+		 */
+		if (READ_ONCE(txq->xmit_lock_owner) != cpu) {
 			if (dev_xmit_recursion())
 				goto recursion_alert;
 
-- 
GitLab


From 9a40a1e0eb50c49bee7286126341937c136c78f3 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 1 Dec 2021 18:26:35 -0800
Subject: [PATCH 1966/4878] ipv4: convert fib_num_tclassid_users to atomic_t

commit 213f5f8f31f10aa1e83187ae20fb7fa4e626b724 upstream.

Before commit faa041a40b9f ("ipv4: Create cleanup helper for fib_nh")
changes to net->ipv4.fib_num_tclassid_users were protected by RTNL.

After the change, this is no longer the case, as free_fib_info_rcu()
runs after rcu grace period, without rtnl being held.

Fixes: faa041a40b9f ("ipv4: Create cleanup helper for fib_nh")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/ip_fib.h     | 2 +-
 include/net/netns/ipv4.h | 2 +-
 net/ipv4/fib_frontend.c  | 2 +-
 net/ipv4/fib_rules.c     | 4 ++--
 net/ipv4/fib_semantics.c | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 4d431d7b4415a..088f257cd6fb3 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -437,7 +437,7 @@ int fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
 #ifdef CONFIG_IP_ROUTE_CLASSID
 static inline int fib_num_tclassid_users(struct net *net)
 {
-	return net->ipv4.fib_num_tclassid_users;
+	return atomic_read(&net->ipv4.fib_num_tclassid_users);
 }
 #else
 static inline int fib_num_tclassid_users(struct net *net)
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 8e4fcac4df72f..75484f425e558 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -61,7 +61,7 @@ struct netns_ipv4 {
 #endif
 	bool			fib_has_custom_local_routes;
 #ifdef CONFIG_IP_ROUTE_CLASSID
-	int			fib_num_tclassid_users;
+	atomic_t		fib_num_tclassid_users;
 #endif
 	struct hlist_head	*fib_table_hash;
 	bool			fib_offload_disabled;
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 647bceab56c2d..917ea953dfad8 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1578,7 +1578,7 @@ static int __net_init fib_net_init(struct net *net)
 	int error;
 
 #ifdef CONFIG_IP_ROUTE_CLASSID
-	net->ipv4.fib_num_tclassid_users = 0;
+	atomic_set(&net->ipv4.fib_num_tclassid_users, 0);
 #endif
 	error = ip_fib_net_init(net);
 	if (error < 0)
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 364ad3446b2f3..d279cb8ac1584 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -264,7 +264,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
 	if (tb[FRA_FLOW]) {
 		rule4->tclassid = nla_get_u32(tb[FRA_FLOW]);
 		if (rule4->tclassid)
-			net->ipv4.fib_num_tclassid_users++;
+			atomic_inc(&net->ipv4.fib_num_tclassid_users);
 	}
 #endif
 
@@ -296,7 +296,7 @@ static int fib4_rule_delete(struct fib_rule *rule)
 
 #ifdef CONFIG_IP_ROUTE_CLASSID
 	if (((struct fib4_rule *)rule)->tclassid)
-		net->ipv4.fib_num_tclassid_users--;
+		atomic_dec(&net->ipv4.fib_num_tclassid_users);
 #endif
 	net->ipv4.fib_has_custom_rules = true;
 
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 642503e89924b..36f34977dda19 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -222,7 +222,7 @@ void fib_nh_release(struct net *net, struct fib_nh *fib_nh)
 {
 #ifdef CONFIG_IP_ROUTE_CLASSID
 	if (fib_nh->nh_tclassid)
-		net->ipv4.fib_num_tclassid_users--;
+		atomic_dec(&net->ipv4.fib_num_tclassid_users);
 #endif
 	fib_nh_common_release(&fib_nh->nh_common);
 }
@@ -633,7 +633,7 @@ int fib_nh_init(struct net *net, struct fib_nh *nh,
 #ifdef CONFIG_IP_ROUTE_CLASSID
 	nh->nh_tclassid = cfg->fc_flow;
 	if (nh->nh_tclassid)
-		net->ipv4.fib_num_tclassid_users++;
+		atomic_inc(&net->ipv4.fib_num_tclassid_users);
 #endif
 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 	nh->fib_nh_weight = nh_weight;
-- 
GitLab


From 77731fede297a23d26f2d169b4269466b2c82529 Mon Sep 17 00:00:00 2001
From: Dust Li <dust.li@linux.alibaba.com>
Date: Wed, 1 Dec 2021 11:02:30 +0800
Subject: [PATCH 1967/4878] net/smc: fix wrong list_del in
 smc_lgr_cleanup_early
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 789b6cc2a5f9123b9c549b886fdc47c865cfe0ba upstream.

smc_lgr_cleanup_early() meant to delete the link
group from the link group list, but it deleted
the list head by mistake.

This may cause memory corruption since we didn't
remove the real link group from the list and later
memseted the link group structure.
We got a list corruption panic when testing:

[  231.277259] list_del corruption. prev->next should be ffff8881398a8000, but was 0000000000000000
[  231.278222] ------------[ cut here ]------------
[  231.278726] kernel BUG at lib/list_debug.c:53!
[  231.279326] invalid opcode: 0000 [#1] SMP NOPTI
[  231.279803] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.46+ #435
[  231.280466] Hardware name: Alibaba Cloud ECS, BIOS 8c24b4c 04/01/2014
[  231.281248] Workqueue: events smc_link_down_work
[  231.281732] RIP: 0010:__list_del_entry_valid+0x70/0x90
[  231.282258] Code: 4c 60 82 e8 7d cc 6a 00 0f 0b 48 89 fe 48 c7 c7 88 4c
60 82 e8 6c cc 6a 00 0f 0b 48 89 fe 48 c7 c7 c0 4c 60 82 e8 5b cc 6a 00 <0f>
0b 48 89 fe 48 c7 c7 00 4d 60 82 e8 4a cc 6a 00 0f 0b cc cc cc
[  231.284146] RSP: 0018:ffffc90000033d58 EFLAGS: 00010292
[  231.284685] RAX: 0000000000000054 RBX: ffff8881398a8000 RCX: 0000000000000000
[  231.285415] RDX: 0000000000000001 RSI: ffff88813bc18040 RDI: ffff88813bc18040
[  231.286141] RBP: ffffffff8305ad40 R08: 0000000000000003 R09: 0000000000000001
[  231.286873] R10: ffffffff82803da0 R11: ffffc90000033b90 R12: 0000000000000001
[  231.287606] R13: 0000000000000000 R14: ffff8881398a8000 R15: 0000000000000003
[  231.288337] FS:  0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
[  231.289160] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  231.289754] CR2: 0000000000e72058 CR3: 000000010fa96006 CR4: 00000000003706f0
[  231.290485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  231.291211] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  231.291940] Call Trace:
[  231.292211]  smc_lgr_terminate_sched+0x53/0xa0
[  231.292677]  smc_switch_conns+0x75/0x6b0
[  231.293085]  ? update_load_avg+0x1a6/0x590
[  231.293517]  ? ttwu_do_wakeup+0x17/0x150
[  231.293907]  ? update_load_avg+0x1a6/0x590
[  231.294317]  ? newidle_balance+0xca/0x3d0
[  231.294716]  smcr_link_down+0x50/0x1a0
[  231.295090]  ? __wake_up_common_lock+0x77/0x90
[  231.295534]  smc_link_down_work+0x46/0x60
[  231.295933]  process_one_work+0x18b/0x350

Fixes: a0a62ee15a829 ("net/smc: separate locks for SMCD and SMCR link group lists")
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/smc_core.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index cd625b672429f..3f1343dfa16ba 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -204,18 +204,17 @@ static void smc_lgr_unregister_conn(struct smc_connection *conn)
 void smc_lgr_cleanup_early(struct smc_connection *conn)
 {
 	struct smc_link_group *lgr = conn->lgr;
-	struct list_head *lgr_list;
 	spinlock_t *lgr_lock;
 
 	if (!lgr)
 		return;
 
 	smc_conn_free(conn);
-	lgr_list = smc_lgr_list_head(lgr, &lgr_lock);
+	smc_lgr_list_head(lgr, &lgr_lock);
 	spin_lock_bh(lgr_lock);
 	/* do not use this link group for new connections */
-	if (!list_empty(lgr_list))
-		list_del_init(lgr_list);
+	if (!list_empty(&lgr->list))
+		list_del_init(&lgr->list);
 	spin_unlock_bh(lgr_lock);
 	__smc_lgr_terminate(lgr, true);
 }
-- 
GitLab


From e226180acc49cf78fa1502b5b7e7f1b7ebc017c1 Mon Sep 17 00:00:00 2001
From: William Kucharski <william.kucharski@oracle.com>
Date: Wed, 1 Dec 2021 07:45:22 -0700
Subject: [PATCH 1968/4878] net/rds: correct socket tunable error in
 rds_tcp_tune()

commit 19f36edf14bcdb783aef3af8217df96f76a8ce34 upstream.

Correct an error where setting /proc/sys/net/rds/tcp/rds_tcp_rcvbuf would
instead modify the socket's sk_sndbuf and would leave sk_rcvbuf untouched.

Fixes: c6a58ffed536 ("RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket")
Signed-off-by: William Kucharski <william.kucharski@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/rds/tcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index abf19c0e3ba0b..5327d130c4b56 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -500,7 +500,7 @@ void rds_tcp_tune(struct socket *sock)
 		sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
 	}
 	if (rtn->rcvbuf_size > 0) {
-		sk->sk_sndbuf = rtn->rcvbuf_size;
+		sk->sk_rcvbuf = rtn->rcvbuf_size;
 		sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
 	}
 	release_sock(sk);
-- 
GitLab


From a792b3d56438edee560074362320cd0ef7ed580a Mon Sep 17 00:00:00 2001
From: Tony Lu <tonylu@linux.alibaba.com>
Date: Wed, 1 Dec 2021 14:42:16 +0800
Subject: [PATCH 1969/4878] net/smc: Keep smc_close_final rc during active
 close

commit 00e158fb91dfaff3f94746f260d11f1a4853506e upstream.

When smc_close_final() returns error, the return code overwrites by
kernel_sock_shutdown() in smc_close_active(). The return code of
smc_close_final() is more important than kernel_sock_shutdown(), and it
will pass to userspace directly.

Fix it by keeping both return codes, if smc_close_final() raises an
error, return it or kernel_sock_shutdown()'s.

Link: https://lore.kernel.org/linux-s390/1f67548e-cbf6-0dce-82b5-10288a4583bd@linux.ibm.com/
Fixes: 606a63c9783a ("net/smc: Ensure the active closing peer first closes clcsock")
Suggested-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/smc_close.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 04620b53b74a7..84102db5bb314 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -195,6 +195,7 @@ int smc_close_active(struct smc_sock *smc)
 	int old_state;
 	long timeout;
 	int rc = 0;
+	int rc1 = 0;
 
 	timeout = current->flags & PF_EXITING ?
 		  0 : sock_flag(sk, SOCK_LINGER) ?
@@ -232,8 +233,11 @@ again:
 			/* actively shutdown clcsock before peer close it,
 			 * prevent peer from entering TIME_WAIT state.
 			 */
-			if (smc->clcsock && smc->clcsock->sk)
-				rc = kernel_sock_shutdown(smc->clcsock, SHUT_RDWR);
+			if (smc->clcsock && smc->clcsock->sk) {
+				rc1 = kernel_sock_shutdown(smc->clcsock,
+							   SHUT_RDWR);
+				rc = rc ? rc : rc1;
+			}
 		} else {
 			/* peer event has changed the state */
 			goto again;
-- 
GitLab


From d646856a600e8635ba498f20b194219b158626e8 Mon Sep 17 00:00:00 2001
From: Douglas Anderson <dianders@chromium.org>
Date: Wed, 3 Nov 2021 15:31:08 -0700
Subject: [PATCH 1970/4878] drm/msm/a6xx: Allocate enough space for GMU
 registers

commit b4d25abf9720b69a03465b09d0d62d1998ed6708 upstream.

In commit 142639a52a01 ("drm/msm/a6xx: fix crashstate capture for
A650") we changed a6xx_get_gmu_registers() to read 3 sets of
registers. Unfortunately, we didn't change the memory allocation for
the array. That leads to a KASAN warning (this was on the chromeos-5.4
kernel, which has the problematic commit backported to it):

  BUG: KASAN: slab-out-of-bounds in _a6xx_get_gmu_registers+0x144/0x430
  Write of size 8 at addr ffffff80c89432b0 by task A618-worker/209
  CPU: 5 PID: 209 Comm: A618-worker Tainted: G        W         5.4.156-lockdep #22
  Hardware name: Google Lazor Limozeen without Touchscreen (rev5 - rev8) (DT)
  Call trace:
   dump_backtrace+0x0/0x248
   show_stack+0x20/0x2c
   dump_stack+0x128/0x1ec
   print_address_description+0x88/0x4a0
   __kasan_report+0xfc/0x120
   kasan_report+0x10/0x18
   __asan_report_store8_noabort+0x1c/0x24
   _a6xx_get_gmu_registers+0x144/0x430
   a6xx_gpu_state_get+0x330/0x25d4
   msm_gpu_crashstate_capture+0xa0/0x84c
   recover_worker+0x328/0x838
   kthread_worker_fn+0x32c/0x574
   kthread+0x2dc/0x39c
   ret_from_fork+0x10/0x18

  Allocated by task 209:
   __kasan_kmalloc+0xfc/0x1c4
   kasan_kmalloc+0xc/0x14
   kmem_cache_alloc_trace+0x1f0/0x2a0
   a6xx_gpu_state_get+0x164/0x25d4
   msm_gpu_crashstate_capture+0xa0/0x84c
   recover_worker+0x328/0x838
   kthread_worker_fn+0x32c/0x574
   kthread+0x2dc/0x39c
   ret_from_fork+0x10/0x18

Fixes: 142639a52a01 ("drm/msm/a6xx: fix crashstate capture for A650")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20211103153049.1.Idfa574ccb529d17b69db3a1852e49b580132035c@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
index e9ede19193b0e..87d845d6d3bc3 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
@@ -777,12 +777,12 @@ static void a6xx_get_gmu_registers(struct msm_gpu *gpu,
 	struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
 
 	a6xx_state->gmu_registers = state_kcalloc(a6xx_state,
-		2, sizeof(*a6xx_state->gmu_registers));
+		3, sizeof(*a6xx_state->gmu_registers));
 
 	if (!a6xx_state->gmu_registers)
 		return;
 
-	a6xx_state->nr_gmu_registers = 2;
+	a6xx_state->nr_gmu_registers = 3;
 
 	/* Get the CX GMU registers from AHB */
 	_a6xx_get_gmu_registers(gpu, a6xx_state, &a6xx_gmu_reglist[0],
-- 
GitLab


From 13f290d5aa4a4f7f01297a46f4674642c092a122 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@chromium.org>
Date: Mon, 8 Nov 2021 10:01:22 -0800
Subject: [PATCH 1971/4878] drm/msm: Do hw_init() before capturing GPU state

commit e4840d537c2c6b1189d4de16ee0f4820e069dcea upstream.

In particular, we need to ensure all the necessary blocks are switched
to 64b mode (a5xx+) otherwise the high bits of the address of the BO to
snapshot state into will be ignored, resulting in:

  *** gpu fault: ttbr0=0000000000000000 iova=0000000000012000 dir=READ type=TRANSLATION source=CP (0,0,0,0)
  platform 506a000.gmu: [drm:a6xx_gmu_set_oob] *ERROR* Timeout waiting for GMU OOB set BOOT_SLUMBER: 0x0

Fixes: 4f776f4511c7 ("drm/msm/gpu: Convert the GPU show function to use the GPU state")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20211108180122.487859-1-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/msm_debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index ee2e270f464c1..7a7ccad65c922 100644
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -77,6 +77,7 @@ static int msm_gpu_open(struct inode *inode, struct file *file)
 		goto free_priv;
 
 	pm_runtime_get_sync(&gpu->pdev->dev);
+	msm_gpu_hw_init(gpu);
 	show_priv->state = gpu->funcs->gpu_state_get(gpu);
 	pm_runtime_put_sync(&gpu->pdev->dev);
 
-- 
GitLab


From 44812111a3b1d816cbb905d20a73758a1b65a0a0 Mon Sep 17 00:00:00 2001
From: Dmitry Bogdanov <dbezrukov@marvell.com>
Date: Mon, 29 Nov 2021 05:28:23 -0800
Subject: [PATCH 1972/4878] atlantic: Increase delay for fw transactions

commit aa1dcb5646fdf34a15763facf4bf5e482a2814ca upstream.

The max waiting period (of 1 ms) while reading the data from FW shared
buffer is too small for certain types of data (e.g., stats). There's a
chance that FW could be updating buffer at the same time and driver
would be unsuccessful in reading data. Firmware manual recommends to
have 1 sec timeout to fix this issue.

Fixes: 5cfd54d7dc186 ("net: atlantic: minimal A2 fw_ops")
Signed-off-by: Dmitry Bogdanov <dbezrukov@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c  | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
index dd259c8f2f4f3..b0e4119b98834 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
@@ -84,7 +84,7 @@ static int hw_atl2_shared_buffer_read_block(struct aq_hw_s *self,
 			if (cnt > AQ_A2_FW_READ_TRY_MAX)
 				return -ETIME;
 			if (tid1.transaction_cnt_a != tid1.transaction_cnt_b)
-				udelay(1);
+				mdelay(1);
 		} while (tid1.transaction_cnt_a != tid1.transaction_cnt_b);
 
 		hw_atl2_mif_shared_buf_read(self, offset, (u32 *)data, dwords);
@@ -339,8 +339,11 @@ static int aq_a2_fw_update_stats(struct aq_hw_s *self)
 {
 	struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
 	struct statistics_s stats;
+	int err;
 
-	hw_atl2_shared_buffer_read_safe(self, stats, &stats);
+	err = hw_atl2_shared_buffer_read_safe(self, stats, &stats);
+	if (err)
+		return err;
 
 #define AQ_SDELTA(_N_, _F_) (self->curr_stats._N_ += \
 			stats.msm._F_ - priv->last_stats.msm._F_)
-- 
GitLab


From 93a4f3f4fdb511327c4cee5e72e7d518beaa5c06 Mon Sep 17 00:00:00 2001
From: Nikita Danilov <ndanilov@aquantia.com>
Date: Mon, 29 Nov 2021 05:28:24 -0800
Subject: [PATCH 1973/4878] atlatnic: enable Nbase-t speeds with base-t

commit aa685acd98eae25d5351e30288d6cfb65b9c80a5 upstream.

When 2.5G is advertised, N-Base should be advertised against the T-base
caps. N5G is out of use in baseline code and driver should treat both 5G
and N5G (and also 2.5G and N2.5G) equally from user perspective.

Fixes: 5cfd54d7dc186 ("net: atlantic: minimal A2 fw_ops")
Signed-off-by: Nikita Danilov <ndanilov@aquantia.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/aquantia/atlantic/aq_common.h    | 25 +++++++++----------
 .../atlantic/hw_atl/hw_atl_utils_fw2x.c       |  3 ---
 .../atlantic/hw_atl2/hw_atl2_utils_fw.c       |  4 +--
 3 files changed, 13 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_common.h b/drivers/net/ethernet/aquantia/atlantic/aq_common.h
index 23b2d390fcdda..4ad8f36fcade4 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_common.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_common.h
@@ -53,20 +53,19 @@
 
 #define AQ_NIC_RATE_10G		BIT(0)
 #define AQ_NIC_RATE_5G		BIT(1)
-#define AQ_NIC_RATE_5GSR	BIT(2)
-#define AQ_NIC_RATE_2G5		BIT(3)
-#define AQ_NIC_RATE_1G		BIT(4)
-#define AQ_NIC_RATE_100M	BIT(5)
-#define AQ_NIC_RATE_10M		BIT(6)
-#define AQ_NIC_RATE_1G_HALF	BIT(7)
-#define AQ_NIC_RATE_100M_HALF	BIT(8)
-#define AQ_NIC_RATE_10M_HALF	BIT(9)
+#define AQ_NIC_RATE_2G5		BIT(2)
+#define AQ_NIC_RATE_1G		BIT(3)
+#define AQ_NIC_RATE_100M	BIT(4)
+#define AQ_NIC_RATE_10M		BIT(5)
+#define AQ_NIC_RATE_1G_HALF	BIT(6)
+#define AQ_NIC_RATE_100M_HALF	BIT(7)
+#define AQ_NIC_RATE_10M_HALF	BIT(8)
 
-#define AQ_NIC_RATE_EEE_10G	BIT(10)
-#define AQ_NIC_RATE_EEE_5G	BIT(11)
-#define AQ_NIC_RATE_EEE_2G5	BIT(12)
-#define AQ_NIC_RATE_EEE_1G	BIT(13)
-#define AQ_NIC_RATE_EEE_100M	BIT(14)
+#define AQ_NIC_RATE_EEE_10G	BIT(9)
+#define AQ_NIC_RATE_EEE_5G	BIT(10)
+#define AQ_NIC_RATE_EEE_2G5	BIT(11)
+#define AQ_NIC_RATE_EEE_1G	BIT(12)
+#define AQ_NIC_RATE_EEE_100M	BIT(13)
 #define AQ_NIC_RATE_EEE_MSK     (AQ_NIC_RATE_EEE_10G |\
 				 AQ_NIC_RATE_EEE_5G |\
 				 AQ_NIC_RATE_EEE_2G5 |\
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c
index ee0c22d049354..05086f0040fd9 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c
@@ -132,9 +132,6 @@ static enum hw_atl_fw2x_rate link_speed_mask_2fw2x_ratemask(u32 speed)
 	if (speed & AQ_NIC_RATE_5G)
 		rate |= FW2X_RATE_5G;
 
-	if (speed & AQ_NIC_RATE_5GSR)
-		rate |= FW2X_RATE_5G;
-
 	if (speed & AQ_NIC_RATE_2G5)
 		rate |= FW2X_RATE_2G5;
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
index b0e4119b98834..b7a9b0ed6df3b 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
@@ -154,7 +154,7 @@ static void a2_link_speed_mask2fw(u32 speed,
 {
 	link_options->rate_10G = !!(speed & AQ_NIC_RATE_10G);
 	link_options->rate_5G = !!(speed & AQ_NIC_RATE_5G);
-	link_options->rate_N5G = !!(speed & AQ_NIC_RATE_5GSR);
+	link_options->rate_N5G = link_options->rate_5G;
 	link_options->rate_2P5G = !!(speed & AQ_NIC_RATE_2G5);
 	link_options->rate_N2P5G = link_options->rate_2P5G;
 	link_options->rate_1G = !!(speed & AQ_NIC_RATE_1G);
@@ -192,8 +192,6 @@ static u32 a2_fw_lkp_to_mask(struct lkp_link_caps_s *lkp_link_caps)
 		rate |= AQ_NIC_RATE_10G;
 	if (lkp_link_caps->rate_5G)
 		rate |= AQ_NIC_RATE_5G;
-	if (lkp_link_caps->rate_N5G)
-		rate |= AQ_NIC_RATE_5GSR;
 	if (lkp_link_caps->rate_2P5G)
 		rate |= AQ_NIC_RATE_2G5;
 	if (lkp_link_caps->rate_1G)
-- 
GitLab


From ca350298bccbfb843183311f33b6e440377f4577 Mon Sep 17 00:00:00 2001
From: Sameer Saurabh <ssaurabh@marvell.com>
Date: Mon, 29 Nov 2021 05:28:25 -0800
Subject: [PATCH 1974/4878] atlantic: Fix to display FW bundle version instead
 of FW mac version.

commit 2465c802232bc8d2b5bd83b55b08d05c11808704 upstream.

The correct way to reflect firmware version is to use bundle version.
Hence populating the same instead of MAC fw version.

Fixes: c1be0bf092bd2 ("net: atlantic: common functions needed for basic A2 init/deinit hw_ops")
Signed-off-by: Sameer Saurabh <ssaurabh@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c   | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
index b7a9b0ed6df3b..e164ac5b55a88 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
@@ -500,9 +500,9 @@ u32 hw_atl2_utils_get_fw_version(struct aq_hw_s *self)
 	hw_atl2_shared_buffer_read_safe(self, version, &version);
 
 	/* A2 FW version is stored in reverse order */
-	return version.mac.major << 24 |
-	       version.mac.minor << 16 |
-	       version.mac.build;
+	return version.bundle.major << 24 |
+	       version.bundle.minor << 16 |
+	       version.bundle.build;
 }
 
 int hw_atl2_utils_get_action_resolve_table_caps(struct aq_hw_s *self,
-- 
GitLab


From 0c67e7b98fab376847891d2c325473512e54eaeb Mon Sep 17 00:00:00 2001
From: Nikita Danilov <ndanilov@aquantia.com>
Date: Mon, 29 Nov 2021 05:28:26 -0800
Subject: [PATCH 1975/4878] atlantic: Add missing DIDs and fix 115c.

commit 413d5e09caa5a11da9c7d72401ba0588466a04c0 upstream.

At the late production stages new dev ids were introduced. These are
now in production, so its important for the driver to recognize these.
And also fix the board caps for AQC115C adapter.

Fixes: b3f0c79cba206 ("net: atlantic: A2 hw_ops skeleton")
Signed-off-by: Nikita Danilov <ndanilov@aquantia.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/aquantia/atlantic/aq_common.h  |  2 ++
 .../ethernet/aquantia/atlantic/aq_pci_func.c    |  7 ++++++-
 .../aquantia/atlantic/hw_atl2/hw_atl2.c         | 17 +++++++++++++++++
 .../aquantia/atlantic/hw_atl2/hw_atl2.h         |  2 ++
 4 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_common.h b/drivers/net/ethernet/aquantia/atlantic/aq_common.h
index 4ad8f36fcade4..ace691d7cd759 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_common.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_common.h
@@ -40,10 +40,12 @@
 
 #define AQ_DEVICE_ID_AQC113DEV	0x00C0
 #define AQ_DEVICE_ID_AQC113CS	0x94C0
+#define AQ_DEVICE_ID_AQC113CA	0x34C0
 #define AQ_DEVICE_ID_AQC114CS	0x93C0
 #define AQ_DEVICE_ID_AQC113	0x04C0
 #define AQ_DEVICE_ID_AQC113C	0x14C0
 #define AQ_DEVICE_ID_AQC115C	0x12C0
+#define AQ_DEVICE_ID_AQC116C	0x11C0
 
 #define HW_ATL_NIC_NAME "Marvell (aQuantia) AQtion 10Gbit Network Adapter"
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
index 5b996330f228b..1826253f97dc4 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
@@ -49,6 +49,8 @@ static const struct pci_device_id aq_pci_tbl[] = {
 	{ PCI_VDEVICE(AQUANTIA, AQ_DEVICE_ID_AQC113), },
 	{ PCI_VDEVICE(AQUANTIA, AQ_DEVICE_ID_AQC113C), },
 	{ PCI_VDEVICE(AQUANTIA, AQ_DEVICE_ID_AQC115C), },
+	{ PCI_VDEVICE(AQUANTIA, AQ_DEVICE_ID_AQC113CA), },
+	{ PCI_VDEVICE(AQUANTIA, AQ_DEVICE_ID_AQC116C), },
 
 	{}
 };
@@ -85,7 +87,10 @@ static const struct aq_board_revision_s hw_atl_boards[] = {
 	{ AQ_DEVICE_ID_AQC113CS,	AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc113, },
 	{ AQ_DEVICE_ID_AQC114CS,	AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc113, },
 	{ AQ_DEVICE_ID_AQC113C,		AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc113, },
-	{ AQ_DEVICE_ID_AQC115C,		AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc113, },
+	{ AQ_DEVICE_ID_AQC115C,		AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc115c, },
+	{ AQ_DEVICE_ID_AQC113CA,	AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc113, },
+	{ AQ_DEVICE_ID_AQC116C,		AQ_HWREV_ANY,	&hw_atl2_ops, &hw_atl2_caps_aqc116c, },
+
 };
 
 MODULE_DEVICE_TABLE(pci, aq_pci_tbl);
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
index 92f64048bf691..649ad7314ad89 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
@@ -72,6 +72,23 @@ const struct aq_hw_caps_s hw_atl2_caps_aqc113 = {
 			  AQ_NIC_RATE_10M_HALF,
 };
 
+const struct aq_hw_caps_s hw_atl2_caps_aqc115c = {
+	DEFAULT_BOARD_BASIC_CAPABILITIES,
+	.media_type = AQ_HW_MEDIA_TYPE_TP,
+	.link_speed_msk = AQ_NIC_RATE_2G5 |
+			  AQ_NIC_RATE_1G  |
+			  AQ_NIC_RATE_100M      |
+			  AQ_NIC_RATE_10M,
+};
+
+const struct aq_hw_caps_s hw_atl2_caps_aqc116c = {
+	DEFAULT_BOARD_BASIC_CAPABILITIES,
+	.media_type = AQ_HW_MEDIA_TYPE_TP,
+	.link_speed_msk = AQ_NIC_RATE_1G  |
+			  AQ_NIC_RATE_100M      |
+			  AQ_NIC_RATE_10M,
+};
+
 static u32 hw_atl2_sem_act_rslvr_get(struct aq_hw_s *self)
 {
 	return hw_atl_reg_glb_cpu_sem_get(self, HW_ATL2_FW_SM_ACT_RSLVR);
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.h
index de8723f1c28a1..346f0dc9912e5 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.h
@@ -9,6 +9,8 @@
 #include "aq_common.h"
 
 extern const struct aq_hw_caps_s hw_atl2_caps_aqc113;
+extern const struct aq_hw_caps_s hw_atl2_caps_aqc115c;
+extern const struct aq_hw_caps_s hw_atl2_caps_aqc116c;
 extern const struct aq_hw_ops hw_atl2_ops;
 
 #endif /* HW_ATL2_H */
-- 
GitLab


From 695d9c6bc67144e337e845989cc181b6d277a164 Mon Sep 17 00:00:00 2001
From: Sameer Saurabh <ssaurabh@marvell.com>
Date: Mon, 29 Nov 2021 05:28:27 -0800
Subject: [PATCH 1976/4878] Remove Half duplex mode speed capabilities.

commit 03fa512189eb9b55ded5f3e81ad638315555b340 upstream.

Since Half Duplex mode has been deprecated by the firmware, driver should
not advertise Half Duplex speed in ethtool support link speed values.

Fixes: 071a02046c262 ("net: atlantic: A2: half duplex support")
Signed-off-by: Sameer Saurabh <ssaurabh@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
index 649ad7314ad89..c76ccdc77ba60 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2.c
@@ -65,11 +65,8 @@ const struct aq_hw_caps_s hw_atl2_caps_aqc113 = {
 			  AQ_NIC_RATE_5G  |
 			  AQ_NIC_RATE_2G5 |
 			  AQ_NIC_RATE_1G  |
-			  AQ_NIC_RATE_1G_HALF   |
 			  AQ_NIC_RATE_100M      |
-			  AQ_NIC_RATE_100M_HALF |
-			  AQ_NIC_RATE_10M       |
-			  AQ_NIC_RATE_10M_HALF,
+			  AQ_NIC_RATE_10M,
 };
 
 const struct aq_hw_caps_s hw_atl2_caps_aqc115c = {
-- 
GitLab


From 95f6fae9a0dbd0c1a04eb19d7e7f9ef95036914e Mon Sep 17 00:00:00 2001
From: Dmitry Bogdanov <dbezrukov@marvell.com>
Date: Mon, 29 Nov 2021 05:28:28 -0800
Subject: [PATCH 1977/4878] atlantic: Fix statistics logic for production
 hardware

commit 2087ced0fc3a6d45203925750a2b1bcd5402e639 upstream.

B0 is the main and widespread device revision of atlantic2 HW. In the
current state, driver will incorrectly fetch the statistics for this
revision.

Fixes: 5cfd54d7dc186 ("net: atlantic: minimal A2 fw_ops")
Signed-off-by: Dmitry Bogdanov <dbezrukov@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/aquantia/atlantic/aq_hw.h    |   2 +
 .../net/ethernet/aquantia/atlantic/aq_nic.c   |  10 +-
 .../aquantia/atlantic/hw_atl/hw_atl_utils.c   |  15 ++-
 .../aquantia/atlantic/hw_atl2/hw_atl2_utils.h |  38 ++++++-
 .../atlantic/hw_atl2/hw_atl2_utils_fw.c       | 101 ++++++++++++++----
 5 files changed, 139 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_hw.h b/drivers/net/ethernet/aquantia/atlantic/aq_hw.h
index bed481816ea31..7442850ca95f0 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_hw.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_hw.h
@@ -80,6 +80,8 @@ struct aq_hw_link_status_s {
 };
 
 struct aq_stats_s {
+	u64 brc;
+	u64 btc;
 	u64 uprc;
 	u64 mprc;
 	u64 bprc;
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index bf5e0e9bd0e2b..0cf8ae8aeac83 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -903,8 +903,14 @@ u64 *aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
 	data[++i] = stats->mbtc;
 	data[++i] = stats->bbrc;
 	data[++i] = stats->bbtc;
-	data[++i] = stats->ubrc + stats->mbrc + stats->bbrc;
-	data[++i] = stats->ubtc + stats->mbtc + stats->bbtc;
+	if (stats->brc)
+		data[++i] = stats->brc;
+	else
+		data[++i] = stats->ubrc + stats->mbrc + stats->bbrc;
+	if (stats->btc)
+		data[++i] = stats->btc;
+	else
+		data[++i] = stats->ubtc + stats->mbtc + stats->bbtc;
 	data[++i] = stats->dma_pkt_rc;
 	data[++i] = stats->dma_pkt_tc;
 	data[++i] = stats->dma_oct_rc;
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
index da1d185f6d226..65b9e5846be45 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
@@ -867,12 +867,20 @@ static int hw_atl_fw1x_deinit(struct aq_hw_s *self)
 int hw_atl_utils_update_stats(struct aq_hw_s *self)
 {
 	struct aq_stats_s *cs = &self->curr_stats;
+	struct aq_stats_s curr_stats = *cs;
 	struct hw_atl_utils_mbox mbox;
+	bool corrupted_stats = false;
 
 	hw_atl_utils_mpi_read_stats(self, &mbox);
 
-#define AQ_SDELTA(_N_) (self->curr_stats._N_ += \
-			mbox.stats._N_ - self->last_stats._N_)
+#define AQ_SDELTA(_N_)  \
+do { \
+	if (!corrupted_stats && \
+	    ((s64)(mbox.stats._N_ - self->last_stats._N_)) >= 0) \
+		curr_stats._N_ += mbox.stats._N_ - self->last_stats._N_; \
+	else \
+		corrupted_stats = true; \
+} while (0)
 
 	if (self->aq_link_status.mbps) {
 		AQ_SDELTA(uprc);
@@ -892,6 +900,9 @@ int hw_atl_utils_update_stats(struct aq_hw_s *self)
 		AQ_SDELTA(bbrc);
 		AQ_SDELTA(bbtc);
 		AQ_SDELTA(dpc);
+
+		if (!corrupted_stats)
+			*cs = curr_stats;
 	}
 #undef AQ_SDELTA
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils.h
index b66fa346581ce..6bad64c77b87c 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils.h
@@ -239,7 +239,8 @@ struct version_s {
 		u8 minor;
 		u16 build;
 	} phy;
-	u32 rsvd;
+	u32 drv_iface_ver:4;
+	u32 rsvd:28;
 };
 
 struct link_status_s {
@@ -424,7 +425,7 @@ struct cable_diag_status_s {
 	u16 rsvd2;
 };
 
-struct statistics_s {
+struct statistics_a0_s {
 	struct {
 		u32 link_up;
 		u32 link_down;
@@ -457,6 +458,33 @@ struct statistics_s {
 	u32 reserve_fw_gap;
 };
 
+struct __packed statistics_b0_s {
+	u64 rx_good_octets;
+	u64 rx_pause_frames;
+	u64 rx_good_frames;
+	u64 rx_errors;
+	u64 rx_unicast_frames;
+	u64 rx_multicast_frames;
+	u64 rx_broadcast_frames;
+
+	u64 tx_good_octets;
+	u64 tx_pause_frames;
+	u64 tx_good_frames;
+	u64 tx_errors;
+	u64 tx_unicast_frames;
+	u64 tx_multicast_frames;
+	u64 tx_broadcast_frames;
+
+	u32 main_loop_cycles;
+};
+
+struct __packed statistics_s {
+	union __packed {
+		struct statistics_a0_s a0;
+		struct statistics_b0_s b0;
+	};
+};
+
 struct filter_caps_s {
 	u8 l2_filters_base_index:6;
 	u8 flexible_filter_mask:2;
@@ -545,7 +573,7 @@ struct management_status_s {
 	u32 rsvd5;
 };
 
-struct fw_interface_out {
+struct __packed fw_interface_out {
 	struct transaction_counter_s transaction_id;
 	struct version_s version;
 	struct link_status_s link_status;
@@ -569,7 +597,6 @@ struct fw_interface_out {
 	struct core_dump_s core_dump;
 	u32 rsvd11;
 	struct statistics_s stats;
-	u32 rsvd12;
 	struct filter_caps_s filter_caps;
 	struct device_caps_s device_caps;
 	u32 rsvd13;
@@ -592,6 +619,9 @@ struct fw_interface_out {
 #define  AQ_HOST_MODE_LOW_POWER    3U
 #define  AQ_HOST_MODE_SHUTDOWN     4U
 
+#define  AQ_A2_FW_INTERFACE_A0     0
+#define  AQ_A2_FW_INTERFACE_B0     1
+
 int hw_atl2_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops);
 
 int hw_atl2_utils_soft_reset(struct aq_hw_s *self);
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
index e164ac5b55a88..58d426dda3edb 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl2/hw_atl2_utils_fw.c
@@ -333,18 +333,22 @@ static int aq_a2_fw_get_mac_permanent(struct aq_hw_s *self, u8 *mac)
 	return 0;
 }
 
-static int aq_a2_fw_update_stats(struct aq_hw_s *self)
+static void aq_a2_fill_a0_stats(struct aq_hw_s *self,
+				struct statistics_s *stats)
 {
 	struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
-	struct statistics_s stats;
-	int err;
-
-	err = hw_atl2_shared_buffer_read_safe(self, stats, &stats);
-	if (err)
-		return err;
-
-#define AQ_SDELTA(_N_, _F_) (self->curr_stats._N_ += \
-			stats.msm._F_ - priv->last_stats.msm._F_)
+	struct aq_stats_s *cs = &self->curr_stats;
+	struct aq_stats_s curr_stats = *cs;
+	bool corrupted_stats = false;
+
+#define AQ_SDELTA(_N, _F)  \
+do { \
+	if (!corrupted_stats && \
+	    ((s64)(stats->a0.msm._F - priv->last_stats.a0.msm._F)) >= 0) \
+		curr_stats._N += stats->a0.msm._F - priv->last_stats.a0.msm._F;\
+	else \
+		corrupted_stats = true; \
+} while (0)
 
 	if (self->aq_link_status.mbps) {
 		AQ_SDELTA(uprc, rx_unicast_frames);
@@ -363,17 +367,76 @@ static int aq_a2_fw_update_stats(struct aq_hw_s *self)
 		AQ_SDELTA(mbtc, tx_multicast_octets);
 		AQ_SDELTA(bbrc, rx_broadcast_octets);
 		AQ_SDELTA(bbtc, tx_broadcast_octets);
+
+		if (!corrupted_stats)
+			*cs = curr_stats;
+	}
+#undef AQ_SDELTA
+
+}
+
+static void aq_a2_fill_b0_stats(struct aq_hw_s *self,
+				struct statistics_s *stats)
+{
+	struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
+	struct aq_stats_s *cs = &self->curr_stats;
+	struct aq_stats_s curr_stats = *cs;
+	bool corrupted_stats = false;
+
+#define AQ_SDELTA(_N, _F)  \
+do { \
+	if (!corrupted_stats && \
+	    ((s64)(stats->b0._F - priv->last_stats.b0._F)) >= 0) \
+		curr_stats._N += stats->b0._F - priv->last_stats.b0._F; \
+	else \
+		corrupted_stats = true; \
+} while (0)
+
+	if (self->aq_link_status.mbps) {
+		AQ_SDELTA(uprc, rx_unicast_frames);
+		AQ_SDELTA(mprc, rx_multicast_frames);
+		AQ_SDELTA(bprc, rx_broadcast_frames);
+		AQ_SDELTA(erpr, rx_errors);
+		AQ_SDELTA(brc, rx_good_octets);
+
+		AQ_SDELTA(uptc, tx_unicast_frames);
+		AQ_SDELTA(mptc, tx_multicast_frames);
+		AQ_SDELTA(bptc, tx_broadcast_frames);
+		AQ_SDELTA(erpt, tx_errors);
+		AQ_SDELTA(btc, tx_good_octets);
+
+		if (!corrupted_stats)
+			*cs = curr_stats;
 	}
 #undef AQ_SDELTA
-	self->curr_stats.dma_pkt_rc =
-		hw_atl_stats_rx_dma_good_pkt_counter_get(self);
-	self->curr_stats.dma_pkt_tc =
-		hw_atl_stats_tx_dma_good_pkt_counter_get(self);
-	self->curr_stats.dma_oct_rc =
-		hw_atl_stats_rx_dma_good_octet_counter_get(self);
-	self->curr_stats.dma_oct_tc =
-		hw_atl_stats_tx_dma_good_octet_counter_get(self);
-	self->curr_stats.dpc = hw_atl_rpb_rx_dma_drop_pkt_cnt_get(self);
+}
+
+static int aq_a2_fw_update_stats(struct aq_hw_s *self)
+{
+	struct hw_atl2_priv *priv = (struct hw_atl2_priv *)self->priv;
+	struct aq_stats_s *cs = &self->curr_stats;
+	struct statistics_s stats;
+	struct version_s version;
+	int err;
+
+	err = hw_atl2_shared_buffer_read_safe(self, version, &version);
+	if (err)
+		return err;
+
+	err = hw_atl2_shared_buffer_read_safe(self, stats, &stats);
+	if (err)
+		return err;
+
+	if (version.drv_iface_ver == AQ_A2_FW_INTERFACE_A0)
+		aq_a2_fill_a0_stats(self, &stats);
+	else
+		aq_a2_fill_b0_stats(self, &stats);
+
+	cs->dma_pkt_rc = hw_atl_stats_rx_dma_good_pkt_counter_get(self);
+	cs->dma_pkt_tc = hw_atl_stats_tx_dma_good_pkt_counter_get(self);
+	cs->dma_oct_rc = hw_atl_stats_rx_dma_good_octet_counter_get(self);
+	cs->dma_oct_tc = hw_atl_stats_tx_dma_good_octet_counter_get(self);
+	cs->dpc = hw_atl_rpb_rx_dma_drop_pkt_cnt_get(self);
 
 	memcpy(&priv->last_stats, &stats, sizeof(stats));
 
-- 
GitLab


From cfebd5a277ad88f8295be385572d7f7b65a258ce Mon Sep 17 00:00:00 2001
From: Sameer Saurabh <ssaurabh@marvell.com>
Date: Mon, 29 Nov 2021 05:28:29 -0800
Subject: [PATCH 1978/4878] atlantic: Remove warn trace message.

commit 060a0fb721ec5bbe02ae322e434ec87dc25ed6e9 upstream.

Remove the warn trace message - it's not a correct check here, because
the function can still be called on the device in DOWN state

Fixes: 508f2e3dce454 ("net: atlantic: split rx and tx per-queue stats")
Signed-off-by: Sameer Saurabh <ssaurabh@marvell.com>
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/aquantia/atlantic/aq_vec.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
index d281322d7dd29..f4774cf051c97 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
@@ -362,9 +362,6 @@ unsigned int aq_vec_get_sw_stats(struct aq_vec_s *self, const unsigned int tc, u
 {
 	unsigned int count;
 
-	WARN_ONCE(!aq_vec_is_valid_tc(self, tc),
-		  "Invalid tc %u (#rx=%u, #tx=%u)\n",
-		  tc, self->rx_rings, self->tx_rings);
 	if (!aq_vec_is_valid_tc(self, tc))
 		return 0;
 
-- 
GitLab


From 60ce9a754060c6a5833926d28319759d47c16720 Mon Sep 17 00:00:00 2001
From: Like Xu <likexu@tencent.com>
Date: Thu, 18 Nov 2021 21:03:20 +0800
Subject: [PATCH 1979/4878] KVM: x86/pmu: Fix reserved bits for AMD PerfEvtSeln
 register

[ Upstream commit cb1d220da0faa5ca0deb93449aff953f0c2cce6d ]

If we run the following perf command in an AMD Milan guest:

  perf stat \
  -e cpu/event=0x1d0/ \
  -e cpu/event=0x1c7/ \
  -e cpu/umask=0x1f,event=0x18e/ \
  -e cpu/umask=0x7,event=0x18e/ \
  -e cpu/umask=0x18,event=0x18e/ \
  ./workload

dmesg will report a #GP warning from an unchecked MSR access
error on MSR_F15H_PERF_CTLx.

This is because according to APM (Revision: 4.03) Figure 13-7,
the bits [35:32] of AMD PerfEvtSeln register is a part of the
event select encoding, which extends the EVENT_SELECT field
from 8 bits to 12 bits.

Opportunistically update pmu->reserved_bits for reserved bit 19.

Reported-by: Jim Mattson <jmattson@google.com>
Fixes: ca724305a2b0 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20211118130320.95997-1-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/svm/pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/pmu.c b/arch/x86/kvm/svm/pmu.c
index 035da07500e8b..5a5c165a30ed1 100644
--- a/arch/x86/kvm/svm/pmu.c
+++ b/arch/x86/kvm/svm/pmu.c
@@ -274,7 +274,7 @@ static void amd_pmu_refresh(struct kvm_vcpu *vcpu)
 		pmu->nr_arch_gp_counters = AMD64_NUM_COUNTERS;
 
 	pmu->counter_bitmask[KVM_PMC_GP] = ((u64)1 << 48) - 1;
-	pmu->reserved_bits = 0xffffffff00200000ull;
+	pmu->reserved_bits = 0xfffffff000280000ull;
 	pmu->version = 1;
 	/* not applicable to AMD; but clean them to prevent any fall out */
 	pmu->counter_bitmask[KVM_PMC_FIXED] = 0;
-- 
GitLab


From 64ca109bf8758766b10bc80a036745b4bc343dd1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 30 Nov 2021 15:53:37 +0300
Subject: [PATCH 1980/4878] KVM: VMX: Set failure code in prepare_vmcs02()

[ Upstream commit bfbb307c628676929c2d329da0daf9d22afa8ad2 ]

The error paths in the prepare_vmcs02() function are supposed to set
*entry_failure_code but this path does not.  It leads to using an
uninitialized variable in the caller.

Fixes: 71f7347025bf ("KVM: nVMX: Load GUEST_IA32_PERF_GLOBAL_CTRL MSR on VM-Entry")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Message-Id: <20211130125337.GB24578@kili>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/vmx/nested.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 257ec2cbf69a4..36661b15c3d04 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2619,8 +2619,10 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 
 	if ((vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL) &&
 	    WARN_ON_ONCE(kvm_set_msr(vcpu, MSR_CORE_PERF_GLOBAL_CTRL,
-				     vmcs12->guest_ia32_perf_global_ctrl)))
+				     vmcs12->guest_ia32_perf_global_ctrl))) {
+		*entry_failure_code = ENTRY_FAIL_DEFAULT;
 		return -EINVAL;
+	}
 
 	kvm_rsp_write(vcpu, vmcs12->guest_rsp);
 	kvm_rip_write(vcpu, vmcs12->guest_rip);
-- 
GitLab


From c8e341191849a6b3a962b234926bec30b9d159fe Mon Sep 17 00:00:00 2001
From: Michael Sterritt <sterritt@google.com>
Date: Fri, 19 Nov 2021 15:27:57 -0800
Subject: [PATCH 1981/4878] x86/sev: Fix SEV-ES INS/OUTS instructions for word,
 dword, and qword

[ Upstream commit 1d5379d0475419085d3575bd9155f2e558e96390 ]

Properly type the operands being passed to __put_user()/__get_user().
Otherwise, these routines truncate data for dependent instructions
(e.g., INSW) and only read/write one byte.

This has been tested by sending a string with REP OUTSW to a port and
then reading it back in with REP INSW on the same port.

Previous behavior was to only send and receive the first char of the
size. For example, word operations for "abcd" would only read/write
"ac". With change, the full string is now written and read back.

Fixes: f980f9c31a923 (x86/sev-es: Compile early handler code into kernel image)
Signed-off-by: Michael Sterritt <sterritt@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Reviewed-by: Peter Gonda <pgonda@google.com>
Reviewed-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/20211119232757.176201-1-sterritt@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/sev-es.c | 57 +++++++++++++++++++++++++++-------------
 1 file changed, 39 insertions(+), 18 deletions(-)

diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c
index 865e234ea24bd..c222fab112cbd 100644
--- a/arch/x86/kernel/sev-es.c
+++ b/arch/x86/kernel/sev-es.c
@@ -260,11 +260,6 @@ static enum es_result vc_write_mem(struct es_em_ctxt *ctxt,
 				   char *dst, char *buf, size_t size)
 {
 	unsigned long error_code = X86_PF_PROT | X86_PF_WRITE;
-	char __user *target = (char __user *)dst;
-	u64 d8;
-	u32 d4;
-	u16 d2;
-	u8  d1;
 
 	/*
 	 * This function uses __put_user() independent of whether kernel or user
@@ -286,26 +281,42 @@ static enum es_result vc_write_mem(struct es_em_ctxt *ctxt,
 	 * instructions here would cause infinite nesting.
 	 */
 	switch (size) {
-	case 1:
+	case 1: {
+		u8 d1;
+		u8 __user *target = (u8 __user *)dst;
+
 		memcpy(&d1, buf, 1);
 		if (__put_user(d1, target))
 			goto fault;
 		break;
-	case 2:
+	}
+	case 2: {
+		u16 d2;
+		u16 __user *target = (u16 __user *)dst;
+
 		memcpy(&d2, buf, 2);
 		if (__put_user(d2, target))
 			goto fault;
 		break;
-	case 4:
+	}
+	case 4: {
+		u32 d4;
+		u32 __user *target = (u32 __user *)dst;
+
 		memcpy(&d4, buf, 4);
 		if (__put_user(d4, target))
 			goto fault;
 		break;
-	case 8:
+	}
+	case 8: {
+		u64 d8;
+		u64 __user *target = (u64 __user *)dst;
+
 		memcpy(&d8, buf, 8);
 		if (__put_user(d8, target))
 			goto fault;
 		break;
+	}
 	default:
 		WARN_ONCE(1, "%s: Invalid size: %zu\n", __func__, size);
 		return ES_UNSUPPORTED;
@@ -328,11 +339,6 @@ static enum es_result vc_read_mem(struct es_em_ctxt *ctxt,
 				  char *src, char *buf, size_t size)
 {
 	unsigned long error_code = X86_PF_PROT;
-	char __user *s = (char __user *)src;
-	u64 d8;
-	u32 d4;
-	u16 d2;
-	u8  d1;
 
 	/*
 	 * This function uses __get_user() independent of whether kernel or user
@@ -354,26 +360,41 @@ static enum es_result vc_read_mem(struct es_em_ctxt *ctxt,
 	 * instructions here would cause infinite nesting.
 	 */
 	switch (size) {
-	case 1:
+	case 1: {
+		u8 d1;
+		u8 __user *s = (u8 __user *)src;
+
 		if (__get_user(d1, s))
 			goto fault;
 		memcpy(buf, &d1, 1);
 		break;
-	case 2:
+	}
+	case 2: {
+		u16 d2;
+		u16 __user *s = (u16 __user *)src;
+
 		if (__get_user(d2, s))
 			goto fault;
 		memcpy(buf, &d2, 2);
 		break;
-	case 4:
+	}
+	case 4: {
+		u32 d4;
+		u32 __user *s = (u32 __user *)src;
+
 		if (__get_user(d4, s))
 			goto fault;
 		memcpy(buf, &d4, 4);
 		break;
-	case 8:
+	}
+	case 8: {
+		u64 d8;
+		u64 __user *s = (u64 __user *)src;
 		if (__get_user(d8, s))
 			goto fault;
 		memcpy(buf, &d8, 8);
 		break;
+	}
 	default:
 		WARN_ONCE(1, "%s: Invalid size: %zu\n", __func__, size);
 		return ES_UNSUPPORTED;
-- 
GitLab


From 8b9279cad291da564fc2b10636cbdea925d57e50 Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@linux.alibaba.com>
Date: Fri, 26 Nov 2021 18:11:22 +0800
Subject: [PATCH 1982/4878] x86/entry: Use the correct fence macro after swapgs
 in kernel CR3

[ Upstream commit 1367afaa2ee90d1c956dfc224e199fcb3ff3f8cc ]

The commit

  c75890700455 ("x86/entry/64: Remove unneeded kernel CR3 switching")

removed a CR3 write in the faulting path of load_gs_index().

But the path's FENCE_SWAPGS_USER_ENTRY has no fence operation if PTI is
enabled, see spectre_v1_select_mitigation().

Rather, it depended on the serializing CR3 write of SWITCH_TO_KERNEL_CR3
and since it got removed, add a FENCE_SWAPGS_KERNEL_ENTRY call to make
sure speculation is blocked.

 [ bp: Massage commit message and comment. ]

Fixes: c75890700455 ("x86/entry/64: Remove unneeded kernel CR3 switching")
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211126101209.8613-3-jiangshanlai@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/entry/entry_64.S | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index f18f3932e971a..a806d68b96990 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1035,11 +1035,6 @@ SYM_CODE_START_LOCAL(error_entry)
 	pushq	%r12
 	ret
 
-.Lerror_entry_done_lfence:
-	FENCE_SWAPGS_KERNEL_ENTRY
-.Lerror_entry_done:
-	ret
-
 	/*
 	 * There are two places in the kernel that can potentially fault with
 	 * usergs. Handle them here.  B stepping K8s sometimes report a
@@ -1062,8 +1057,14 @@ SYM_CODE_START_LOCAL(error_entry)
 	 * .Lgs_change's error handler with kernel gsbase.
 	 */
 	SWAPGS
-	FENCE_SWAPGS_USER_ENTRY
-	jmp .Lerror_entry_done
+
+	/*
+	 * Issue an LFENCE to prevent GS speculation, regardless of whether it is a
+	 * kernel or user gsbase.
+	 */
+.Lerror_entry_done_lfence:
+	FENCE_SWAPGS_KERNEL_ENTRY
+	ret
 
 .Lbstep_iret:
 	/* Fix truncated RIP */
-- 
GitLab


From 2015ffa3a4c2b058627558ef39b3cce6fe422bf4 Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@linux.alibaba.com>
Date: Fri, 26 Nov 2021 18:11:23 +0800
Subject: [PATCH 1983/4878] x86/xen: Add
 xenpv_restore_regs_and_return_to_usermode()

[ Upstream commit 5c8f6a2e316efebb3ba93d8c1af258155dcf5632 ]

In the native case, PER_CPU_VAR(cpu_tss_rw + TSS_sp0) is the
trampoline stack. But XEN pv doesn't use trampoline stack, so
PER_CPU_VAR(cpu_tss_rw + TSS_sp0) is also the kernel stack.

In that case, source and destination stacks are identical, which means
that reusing swapgs_restore_regs_and_return_to_usermode() in XEN pv
would cause %rsp to move up to the top of the kernel stack and leave the
IRET frame below %rsp.

This is dangerous as it can be corrupted if #NMI / #MC hit as either of
these events occurring in the middle of the stack pushing would clobber
data on the (original) stack.

And, with  XEN pv, swapgs_restore_regs_and_return_to_usermode() pushing
the IRET frame on to the original address is useless and error-prone
when there is any future attempt to modify the code.

 [ bp: Massage commit message. ]

Fixes: 7f2590a110b8 ("x86/entry/64: Use a per-CPU trampoline stack for IDT entries")
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lkml.kernel.org/r/20211126101209.8613-4-jiangshanlai@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/entry/entry_64.S |  4 ++++
 arch/x86/xen/xen-asm.S    | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index a806d68b96990..de541ea2788eb 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -575,6 +575,10 @@ SYM_INNER_LABEL(swapgs_restore_regs_and_return_to_usermode, SYM_L_GLOBAL)
 	ud2
 1:
 #endif
+#ifdef CONFIG_XEN_PV
+	ALTERNATIVE "", "jmp xenpv_restore_regs_and_return_to_usermode", X86_FEATURE_XENPV
+#endif
+
 	POP_REGS pop_rdi=0
 
 	/*
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index 53cf8aa35032d..011ec649f3886 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -19,6 +19,7 @@
 
 #include <linux/init.h>
 #include <linux/linkage.h>
+#include <../entry/calling.h>
 
 /*
  * Enable events.  This clears the event mask and tests the pending
@@ -235,6 +236,25 @@ SYM_CODE_START(xen_sysret64)
 	jmp hypercall_iret
 SYM_CODE_END(xen_sysret64)
 
+/*
+ * XEN pv doesn't use trampoline stack, PER_CPU_VAR(cpu_tss_rw + TSS_sp0) is
+ * also the kernel stack.  Reusing swapgs_restore_regs_and_return_to_usermode()
+ * in XEN pv would cause %rsp to move up to the top of the kernel stack and
+ * leave the IRET frame below %rsp, which is dangerous to be corrupted if #NMI
+ * interrupts. And swapgs_restore_regs_and_return_to_usermode() pushing the IRET
+ * frame at the same address is useless.
+ */
+SYM_CODE_START(xenpv_restore_regs_and_return_to_usermode)
+	UNWIND_HINT_REGS
+	POP_REGS
+
+	/* stackleak_erase() can work safely on the kernel stack. */
+	STACKLEAK_ERASE_NOCLOBBER
+
+	addq	$8, %rsp	/* skip regs->orig_ax */
+	jmp xen_iret
+SYM_CODE_END(xenpv_restore_regs_and_return_to_usermode)
+
 /*
  * Xen handles syscall callbacks much like ordinary exceptions, which
  * means we have:
-- 
GitLab


From 4d42b7bcf09dc5baffcdbb26f093c692371a24da Mon Sep 17 00:00:00 2001
From: Qais Yousef <qais.yousef@arm.com>
Date: Thu, 2 Dec 2021 11:20:33 +0000
Subject: [PATCH 1984/4878] sched/uclamp: Fix rq->uclamp_max not set on first
 enqueue

[ Upstream commit 315c4f884800c45cb6bd8c90422fad554a8b9588 ]

Commit d81ae8aac85c ("sched/uclamp: Fix initialization of struct
uclamp_rq") introduced a bug where uclamp_max of the rq is not reset to
match the woken up task's uclamp_max when the rq is idle.

The code was relying on rq->uclamp_max initialized to zero, so on first
enqueue

	static inline void uclamp_rq_inc_id(struct rq *rq, struct task_struct *p,
					    enum uclamp_id clamp_id)
	{
		...

		if (uc_se->value > READ_ONCE(uc_rq->value))
			WRITE_ONCE(uc_rq->value, uc_se->value);
	}

was actually resetting it. But since commit d81ae8aac85c changed the
default to 1024, this no longer works. And since rq->uclamp_flags is
also initialized to 0, neither above code path nor uclamp_idle_reset()
update the rq->uclamp_max on first wake up from idle.

This is only visible from first wake up(s) until the first dequeue to
idle after enabling the static key. And it only matters if the
uclamp_max of this task is < 1024 since only then its uclamp_max will be
effectively ignored.

Fix it by properly initializing rq->uclamp_flags = UCLAMP_FLAG_IDLE to
ensure uclamp_idle_reset() is called which then will update the rq
uclamp_max value as expected.

Fixes: d81ae8aac85c ("sched/uclamp: Fix initialization of struct uclamp_rq")
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <Valentin.Schneider@arm.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/20211202112033.1705279-1-qais.yousef@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 304aad997da11..0a5f9fad45e4b 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1526,7 +1526,7 @@ static void __init init_uclamp_rq(struct rq *rq)
 		};
 	}
 
-	rq->uclamp_flags = 0;
+	rq->uclamp_flags = UCLAMP_FLAG_IDLE;
 }
 
 static void __init init_uclamp(void)
-- 
GitLab


From 4bbbc9c4f313351b5c087b2135fb232dd0bdd41d Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Wed, 20 Jan 2021 14:55:44 +0100
Subject: [PATCH 1985/4878] x86/pv: Switch SWAPGS to ALTERNATIVE

[ Upstream commit 53c9d9240944088274aadbbbafc6138ca462db4f ]

SWAPGS is used only for interrupts coming from user mode or for
returning to user mode. So there is no reason to use the PARAVIRT
framework, as it can easily be replaced by an ALTERNATIVE depending
on X86_FEATURE_XENPV.

There are several instances using the PV-aware SWAPGS macro in paths
which are never executed in a Xen PV guest. Replace those with the
plain swapgs instruction. For SWAPGS_UNSAFE_STACK the same applies.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210120135555.32594-5-jgross@suse.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/entry/entry_64.S             | 10 +++++-----
 arch/x86/include/asm/irqflags.h       | 20 ++++++++------------
 arch/x86/include/asm/paravirt.h       | 20 --------------------
 arch/x86/include/asm/paravirt_types.h |  2 --
 arch/x86/kernel/asm-offsets_64.c      |  1 -
 arch/x86/kernel/paravirt.c            |  1 -
 arch/x86/kernel/paravirt_patch.c      |  3 ---
 arch/x86/xen/enlighten_pv.c           |  3 ---
 8 files changed, 13 insertions(+), 47 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index de541ea2788eb..166554a109aeb 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -673,7 +673,7 @@ native_irq_return_ldt:
 	 */
 
 	pushq	%rdi				/* Stash user RDI */
-	SWAPGS					/* to kernel GS */
+	swapgs					/* to kernel GS */
 	SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi	/* to kernel CR3 */
 
 	movq	PER_CPU_VAR(espfix_waddr), %rdi
@@ -703,7 +703,7 @@ native_irq_return_ldt:
 	orq	PER_CPU_VAR(espfix_stack), %rax
 
 	SWITCH_TO_USER_CR3_STACK scratch_reg=%rdi
-	SWAPGS					/* to user GS */
+	swapgs					/* to user GS */
 	popq	%rdi				/* Restore user RDI */
 
 	movq	%rax, %rsp
@@ -947,7 +947,7 @@ SYM_CODE_START_LOCAL(paranoid_entry)
 	ret
 
 .Lparanoid_entry_swapgs:
-	SWAPGS
+	swapgs
 
 	/*
 	 * The above SAVE_AND_SWITCH_TO_KERNEL_CR3 macro doesn't do an
@@ -1005,7 +1005,7 @@ SYM_CODE_START_LOCAL(paranoid_exit)
 	jnz		restore_regs_and_return_to_kernel
 
 	/* We are returning to a context with user GSBASE */
-	SWAPGS_UNSAFE_STACK
+	swapgs
 	jmp		restore_regs_and_return_to_kernel
 SYM_CODE_END(paranoid_exit)
 
@@ -1431,7 +1431,7 @@ nmi_no_fsgsbase:
 	jnz	nmi_restore
 
 nmi_swapgs:
-	SWAPGS_UNSAFE_STACK
+	swapgs
 
 nmi_restore:
 	POP_REGS
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index 2dfc8d380dab1..8c86edefa1150 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -131,18 +131,6 @@ static __always_inline unsigned long arch_local_irq_save(void)
 #define SAVE_FLAGS(x)		pushfq; popq %rax
 #endif
 
-#define SWAPGS	swapgs
-/*
- * Currently paravirt can't handle swapgs nicely when we
- * don't have a stack we can rely on (such as a user space
- * stack).  So we either find a way around these or just fault
- * and emulate if a guest tries to call swapgs directly.
- *
- * Either way, this is a good way to document that we don't
- * have a reliable stack. x86_64 only.
- */
-#define SWAPGS_UNSAFE_STACK	swapgs
-
 #define INTERRUPT_RETURN	jmp native_iret
 #define USERGS_SYSRET64				\
 	swapgs;					\
@@ -170,6 +158,14 @@ static __always_inline int arch_irqs_disabled(void)
 
 	return arch_irqs_disabled_flags(flags);
 }
+#else
+#ifdef CONFIG_X86_64
+#ifdef CONFIG_XEN_PV
+#define SWAPGS	ALTERNATIVE "swapgs", "", X86_FEATURE_XENPV
+#else
+#define SWAPGS	swapgs
+#endif
+#endif
 #endif /* !__ASSEMBLY__ */
 
 #endif
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index d25cc6830e895..5647bcdba776e 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -776,26 +776,6 @@ extern void default_banner(void);
 
 #ifdef CONFIG_X86_64
 #ifdef CONFIG_PARAVIRT_XXL
-/*
- * If swapgs is used while the userspace stack is still current,
- * there's no way to call a pvop.  The PV replacement *must* be
- * inlined, or the swapgs instruction must be trapped and emulated.
- */
-#define SWAPGS_UNSAFE_STACK						\
-	PARA_SITE(PARA_PATCH(PV_CPU_swapgs), swapgs)
-
-/*
- * Note: swapgs is very special, and in practise is either going to be
- * implemented with a single "swapgs" instruction or something very
- * special.  Either way, we don't need to save any registers for
- * it.
- */
-#define SWAPGS								\
-	PARA_SITE(PARA_PATCH(PV_CPU_swapgs),				\
-		  ANNOTATE_RETPOLINE_SAFE;				\
-		  call PARA_INDIRECT(pv_ops+PV_CPU_swapgs);		\
-		 )
-
 #define USERGS_SYSRET64							\
 	PARA_SITE(PARA_PATCH(PV_CPU_usergs_sysret64),			\
 		  ANNOTATE_RETPOLINE_SAFE;				\
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 0fad9f61c76ab..903d71884fa25 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -169,8 +169,6 @@ struct pv_cpu_ops {
 	   frame set up. */
 	void (*iret)(void);
 
-	void (*swapgs)(void);
-
 	void (*start_context_switch)(struct task_struct *prev);
 	void (*end_context_switch)(struct task_struct *next);
 #endif
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index 828be792231e9..1354bc30614d7 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -15,7 +15,6 @@ int main(void)
 #ifdef CONFIG_PARAVIRT_XXL
 	OFFSET(PV_CPU_usergs_sysret64, paravirt_patch_template,
 	       cpu.usergs_sysret64);
-	OFFSET(PV_CPU_swapgs, paravirt_patch_template, cpu.swapgs);
 #ifdef CONFIG_DEBUG_ENTRY
 	OFFSET(PV_IRQ_save_fl, paravirt_patch_template, irq.save_fl);
 #endif
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 6c3407ba6ee98..5e5fcf5c376de 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -312,7 +312,6 @@ struct paravirt_patch_template pv_ops = {
 
 	.cpu.usergs_sysret64	= native_usergs_sysret64,
 	.cpu.iret		= native_iret,
-	.cpu.swapgs		= native_swapgs,
 
 #ifdef CONFIG_X86_IOPL_IOPERM
 	.cpu.invalidate_io_bitmap	= native_tss_invalidate_io_bitmap,
diff --git a/arch/x86/kernel/paravirt_patch.c b/arch/x86/kernel/paravirt_patch.c
index ace6e334cb393..7c518b08aa3c5 100644
--- a/arch/x86/kernel/paravirt_patch.c
+++ b/arch/x86/kernel/paravirt_patch.c
@@ -28,7 +28,6 @@ struct patch_xxl {
 	const unsigned char	irq_restore_fl[2];
 	const unsigned char	cpu_wbinvd[2];
 	const unsigned char	cpu_usergs_sysret64[6];
-	const unsigned char	cpu_swapgs[3];
 	const unsigned char	mov64[3];
 };
 
@@ -43,7 +42,6 @@ static const struct patch_xxl patch_data_xxl = {
 	.cpu_wbinvd		= { 0x0f, 0x09 },	// wbinvd
 	.cpu_usergs_sysret64	= { 0x0f, 0x01, 0xf8,
 				    0x48, 0x0f, 0x07 },	// swapgs; sysretq
-	.cpu_swapgs		= { 0x0f, 0x01, 0xf8 },	// swapgs
 	.mov64			= { 0x48, 0x89, 0xf8 },	// mov %rdi, %rax
 };
 
@@ -86,7 +84,6 @@ unsigned int native_patch(u8 type, void *insn_buff, unsigned long addr,
 	PATCH_CASE(mmu, write_cr3, xxl, insn_buff, len);
 
 	PATCH_CASE(cpu, usergs_sysret64, xxl, insn_buff, len);
-	PATCH_CASE(cpu, swapgs, xxl, insn_buff, len);
 	PATCH_CASE(cpu, wbinvd, xxl, insn_buff, len);
 #endif
 
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 5af0421ef74ba..16ff25d6935e7 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1083,9 +1083,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
 #endif
 	.io_delay = xen_io_delay,
 
-	/* Xen takes care of %gs when switching to usermode for us */
-	.swapgs = paravirt_nop,
-
 	.start_context_switch = paravirt_start_context_switch,
 	.end_context_switch = xen_end_context_switch,
 };
-- 
GitLab


From 92f309c838fc2dd4954edf785f02b895c43fc184 Mon Sep 17 00:00:00 2001
From: Lai Jiangshan <laijs@linux.alibaba.com>
Date: Fri, 26 Nov 2021 18:11:21 +0800
Subject: [PATCH 1986/4878] x86/entry: Add a fence for kernel entry SWAPGS in
 paranoid_entry()

[ Upstream commit c07e45553da1808aa802e9f0ffa8108cfeaf7a17 ]

Commit

  18ec54fdd6d18 ("x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations")

added FENCE_SWAPGS_{KERNEL|USER}_ENTRY for conditional SWAPGS. In
paranoid_entry(), it uses only FENCE_SWAPGS_KERNEL_ENTRY for both
branches. This is because the fence is required for both cases since the
CR3 write is conditional even when PTI is enabled.

But

  96b2371413e8f ("x86/entry/64: Switch CR3 before SWAPGS in paranoid entry")

changed the order of SWAPGS and the CR3 write. And it missed the needed
FENCE_SWAPGS_KERNEL_ENTRY for the user gsbase case.

Add it back by changing the branches so that FENCE_SWAPGS_KERNEL_ENTRY
can cover both branches.

  [ bp: Massage, fix typos, remove obsolete comment while at it. ]

Fixes: 96b2371413e8f ("x86/entry/64: Switch CR3 before SWAPGS in paranoid entry")
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211126101209.8613-2-jiangshanlai@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/entry/entry_64.S | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 166554a109aeb..a24ce5905ab82 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -936,6 +936,7 @@ SYM_CODE_START_LOCAL(paranoid_entry)
 .Lparanoid_entry_checkgs:
 	/* EBX = 1 -> kernel GSBASE active, no restore required */
 	movl	$1, %ebx
+
 	/*
 	 * The kernel-enforced convention is a negative GSBASE indicates
 	 * a kernel value. No SWAPGS needed on entry and exit.
@@ -943,21 +944,14 @@ SYM_CODE_START_LOCAL(paranoid_entry)
 	movl	$MSR_GS_BASE, %ecx
 	rdmsr
 	testl	%edx, %edx
-	jns	.Lparanoid_entry_swapgs
-	ret
+	js	.Lparanoid_kernel_gsbase
 
-.Lparanoid_entry_swapgs:
+	/* EBX = 0 -> SWAPGS required on exit */
+	xorl	%ebx, %ebx
 	swapgs
+.Lparanoid_kernel_gsbase:
 
-	/*
-	 * The above SAVE_AND_SWITCH_TO_KERNEL_CR3 macro doesn't do an
-	 * unconditional CR3 write, even in the PTI case.  So do an lfence
-	 * to prevent GS speculation, regardless of whether PTI is enabled.
-	 */
 	FENCE_SWAPGS_KERNEL_ENTRY
-
-	/* EBX = 0 -> SWAPGS required on exit */
-	xorl	%ebx, %ebx
 	ret
 SYM_CODE_END(paranoid_entry)
 
-- 
GitLab


From c27a548d3f294f5e7e70689986795f654d5c103d Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Fri, 26 Nov 2021 22:35:45 +0100
Subject: [PATCH 1987/4878] parisc: Fix KBUILD_IMAGE for self-extracting kernel

commit 1d7c29b77725d05faff6754d2f5e7c147aedcf93 upstream.

Default KBUILD_IMAGE to $(boot)/bzImage if a self-extracting
(CONFIG_PARISC_SELF_EXTRACT=y) kernel is to be built.
This fixes the bindeb-pkg make target.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 5140c602207f6..0cf86ed2b7c17 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -17,7 +17,12 @@
 # Mike Shaver, Helge Deller and Martin K. Petersen
 #
 
+ifdef CONFIG_PARISC_SELF_EXTRACT
+boot := arch/parisc/boot
+KBUILD_IMAGE := $(boot)/bzImage
+else
 KBUILD_IMAGE := vmlinuz
+endif
 
 NM		= sh $(srctree)/arch/parisc/nm
 CHECKFLAGS	+= -D__hppa__=1
-- 
GitLab


From 92b9113c6df0a2731e500b9d49ecf377b35a0f0b Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 4 Dec 2021 21:14:40 +0100
Subject: [PATCH 1988/4878] parisc: Fix "make install" on newer debian releases

commit 0f9fee4cdebfbe695c297e5b603a275e2557c1cc upstream.

On newer debian releases the debian-provided "installkernel" script is
installed in /usr/sbin. Fix the kernel install.sh script to look for the
script in this directory as well.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v3.13+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/install.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/install.sh b/arch/parisc/install.sh
index 056d588befdd6..70d3cffb02515 100644
--- a/arch/parisc/install.sh
+++ b/arch/parisc/install.sh
@@ -39,6 +39,7 @@ verify "$3"
 if [ -n "${INSTALLKERNEL}" ]; then
   if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
   if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+  if [ -x /usr/sbin/${INSTALLKERNEL} ]; then exec /usr/sbin/${INSTALLKERNEL} "$@"; fi
 fi
 
 # Default install
-- 
GitLab


From 1235485c633e029e0bf806dece4758c27c99af3e Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@orcam.me.uk>
Date: Tue, 26 Oct 2021 00:26:22 +0200
Subject: [PATCH 1989/4878] vgacon: Propagate console boot parameters before
 calling `vc_resize'

commit 3dfac26e2ef29ff2abc2a75aa4cd48fce25a2c4b upstream.

Fix a division by zero in `vgacon_resize' with a backtrace like:

vgacon_resize
vc_do_resize
vgacon_init
do_bind_con_driver
do_unbind_con_driver
fbcon_fb_unbind
do_unregister_framebuffer
do_register_framebuffer
register_framebuffer
__drm_fb_helper_initial_config_and_unlock
drm_helper_hpd_irq_event
dw_hdmi_irq
irq_thread
kthread

caused by `c->vc_cell_height' not having been initialized.  This has
only started to trigger with commit 860dafa90259 ("vt: Fix character
height handling with VT_RESIZEX"), however the ultimate offender is
commit 50ec42edd978 ("[PATCH] Detaching fbcon: fix vgacon to allow
retaking of the console").

Said commit has added a call to `vc_resize' whenever `vgacon_init' is
called with the `init' argument set to 0, which did not happen before.
And the call is made before a key vgacon boot parameter retrieved in
`vgacon_startup' has been propagated in `vgacon_init' for `vc_resize' to
use to the console structure being worked on.  Previously the parameter
was `c->vc_font.height' and now it is `c->vc_cell_height'.

In this particular scenario the registration of fbcon has failed and vt
resorts to vgacon.  Now fbcon does have initialized `c->vc_font.height'
somehow, unlike `c->vc_cell_height', which is why this code did not
crash before, but either way the boot parameters should have been copied
to the console structure ahead of the call to `vc_resize' rather than
afterwards, so that first the call has a chance to use them and second
they do not change the console structure to something possibly different
from what was used by `vc_resize'.

Move the propagation of the vgacon boot parameters ahead of the call to
`vc_resize' then.  Adjust the comment accordingly.

Fixes: 50ec42edd978 ("[PATCH] Detaching fbcon: fix vgacon to allow retaking of the console")
Cc: stable@vger.kernel.org # v2.6.18+
Reported-by: Wim Osterholt <wim@djo.tudelft.nl>
Reported-by: Pavel V. Panteleev <panteleev_p@mcst.ru>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2110252317110.58149@angie.orcam.me.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/console/vgacon.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 5dc88a914b349..042e166d92682 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -370,11 +370,17 @@ static void vgacon_init(struct vc_data *c, int init)
 	struct uni_pagedir *p;
 
 	/*
-	 * We cannot be loaded as a module, therefore init is always 1,
-	 * but vgacon_init can be called more than once, and init will
-	 * not be 1.
+	 * We cannot be loaded as a module, therefore init will be 1
+	 * if we are the default console, however if we are a fallback
+	 * console, for example if fbcon has failed registration, then
+	 * init will be 0, so we need to make sure our boot parameters
+	 * have been copied to the console structure for vgacon_resize
+	 * ultimately called by vc_resize.  Any subsequent calls to
+	 * vgacon_init init will have init set to 0 too.
 	 */
 	c->vc_can_do_color = vga_can_do_color;
+	c->vc_scan_lines = vga_scan_lines;
+	c->vc_font.height = c->vc_cell_height = vga_video_font_height;
 
 	/* set dimensions manually if init != 0 since vc_resize() will fail */
 	if (init) {
@@ -383,8 +389,6 @@ static void vgacon_init(struct vc_data *c, int init)
 	} else
 		vc_resize(c, vga_video_num_columns, vga_video_num_lines);
 
-	c->vc_scan_lines = vga_scan_lines;
-	c->vc_font.height = c->vc_cell_height = vga_video_font_height;
 	c->vc_complement_mask = 0x7700;
 	if (vga_512_chars)
 		c->vc_hi_font_mask = 0x0800;
-- 
GitLab


From 90c915051c3df2d6d98d506323ab805bc1da7ae3 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Fri, 26 Nov 2021 14:23:40 +0200
Subject: [PATCH 1990/4878] xhci: Fix commad ring abort, write all 64 bits to
 CRCR register.

commit 09f736aa95476631227d2dc0e6b9aeee1ad7ed58 upstream.

Turns out some xHC controllers require all 64 bits in the CRCR register
to be written to execute a command abort.

The lower 32 bits containing the command abort bit is written first.
In case the command ring stops before we write the upper 32 bits then
hardware may use these upper bits to set the commnd ring dequeue pointer.

Solve this by making sure the upper 32 bits contain a valid command
ring dequeue pointer.

The original patch that only wrote the first 32 to stop the ring went
to stable, so this fix should go there as well.

Fixes: ff0e50d3564f ("xhci: Fix command ring pointer corruption while aborting a command")
Cc: stable@vger.kernel.org
Tested-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211126122340.1193239-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-ring.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 4512c4223392a..667a37f509828 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -342,7 +342,9 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
 /* Must be called with xhci->lock held, releases and aquires lock back */
 static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 {
-	u32 temp_32;
+	struct xhci_segment *new_seg	= xhci->cmd_ring->deq_seg;
+	union xhci_trb *new_deq		= xhci->cmd_ring->dequeue;
+	u64 crcr;
 	int ret;
 
 	xhci_dbg(xhci, "Abort command ring\n");
@@ -351,13 +353,18 @@ static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 
 	/*
 	 * The control bits like command stop, abort are located in lower
-	 * dword of the command ring control register. Limit the write
-	 * to the lower dword to avoid corrupting the command ring pointer
-	 * in case if the command ring is stopped by the time upper dword
-	 * is written.
+	 * dword of the command ring control register.
+	 * Some controllers require all 64 bits to be written to abort the ring.
+	 * Make sure the upper dword is valid, pointing to the next command,
+	 * avoiding corrupting the command ring pointer in case the command ring
+	 * is stopped by the time the upper dword is written.
 	 */
-	temp_32 = readl(&xhci->op_regs->cmd_ring);
-	writel(temp_32 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring);
+	next_trb(xhci, NULL, &new_seg, &new_deq);
+	if (trb_is_link(new_deq))
+		next_trb(xhci, NULL, &new_seg, &new_deq);
+
+	crcr = xhci_trb_virt_to_dma(new_seg, new_deq);
+	xhci_write_64(xhci, crcr | CMD_RING_ABORT, &xhci->op_regs->cmd_ring);
 
 	/* Section 4.6.1.2 of xHCI 1.0 spec says software should also time the
 	 * completion of the Command Abort operation. If CRR is not negated in 5
-- 
GitLab


From 6d8c191bf4649c64f12761017d91ffdc7e7e8816 Mon Sep 17 00:00:00 2001
From: Ole Ernst <olebowle@gmx.com>
Date: Sat, 27 Nov 2021 10:05:45 +0100
Subject: [PATCH 1991/4878] USB: NO_LPM quirk Lenovo Powered USB-C Travel Hub

commit d2a004037c3c6afd36d40c384d2905f47cd51c57 upstream.

This is another branded 8153 device that doesn't work well with LPM:
r8152 2-2.1:1.0 enp0s13f0u2u1: Stop submitting intr, status -71

Disable LPM to resolve the issue.

Signed-off-by: Ole Ernst <olebowle@gmx.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211127090546.52072-1-olebowle@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index a54a735b63843..61f686c5bd9c6 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -435,6 +435,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Lenovo Powered USB-C Travel Hub (4X90S92381, RTL8153 GigE) */
+	{ USB_DEVICE(0x17ef, 0x721e), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Lenovo ThinkCenter A630Z TI024Gen3 usb-audio */
 	{ USB_DEVICE(0x17ef, 0xa012), .driver_info =
 			USB_QUIRK_DISCONNECT_SUSPEND },
-- 
GitLab


From a92f044a9fcb523dd9c29bad39a6d2b07880499c Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@google.com>
Date: Mon, 29 Nov 2021 16:18:25 -0800
Subject: [PATCH 1992/4878] usb: typec: tcpm: Wait in SNK_DEBOUNCED until
 disconnect

commit fbcd13df1e78eb2ba83a3c160eefe2d6f574beaf upstream.

Stub from the spec:
"4.5.2.2.4.2 Exiting from AttachWait.SNK State
A Sink shall transition to Unattached.SNK when the state of both
the CC1 and CC2 pins is SNK.Open for at least tPDDebounce.
A DRP shall transition to Unattached.SRC when the state of both
the CC1 and CC2 pins is SNK.Open for at least tPDDebounce."

This change makes TCPM to wait in SNK_DEBOUNCED state until
CC1 and CC2 pins is SNK.Open for at least tPDDebounce. Previously,
TCPM resets the port if vbus is not present in PD_T_PS_SOURCE_ON.
This causes TCPM to loop continuously when connected to a
faulty power source that does not present vbus. Waiting in
SNK_DEBOUNCED also ensures that TCPM is adherant to
"4.5.2.2.4.2 Exiting from AttachWait.SNK State" requirements.

[ 6169.280751] CC1: 0 -> 0, CC2: 0 -> 5 [state TOGGLING, polarity 0, connected]
[ 6169.280759] state change TOGGLING -> SNK_ATTACH_WAIT [rev2 NONE_AMS]
[ 6169.280771] pending state change SNK_ATTACH_WAIT -> SNK_DEBOUNCED @ 170 ms [rev2 NONE_AMS]
[ 6169.282427] CC1: 0 -> 0, CC2: 5 -> 5 [state SNK_ATTACH_WAIT, polarity 0, connected]
[ 6169.450825] state change SNK_ATTACH_WAIT -> SNK_DEBOUNCED [delayed 170 ms]
[ 6169.450834] pending state change SNK_DEBOUNCED -> PORT_RESET @ 480 ms [rev2 NONE_AMS]
[ 6169.930892] state change SNK_DEBOUNCED -> PORT_RESET [delayed 480 ms]
[ 6169.931296] disable vbus discharge ret:0
[ 6169.931301] Setting usb_comm capable false
[ 6169.932783] Setting voltage/current limit 0 mV 0 mA
[ 6169.932802] polarity 0
[ 6169.933706] Requesting mux state 0, usb-role 0, orientation 0
[ 6169.936689] cc:=0
[ 6169.936812] pending state change PORT_RESET -> PORT_RESET_WAIT_OFF @ 100 ms [rev2 NONE_AMS]
[ 6169.937157] CC1: 0 -> 0, CC2: 5 -> 0 [state PORT_RESET, polarity 0, disconnected]
[ 6170.036880] state change PORT_RESET -> PORT_RESET_WAIT_OFF [delayed 100 ms]
[ 6170.036890] state change PORT_RESET_WAIT_OFF -> SNK_UNATTACHED [rev2 NONE_AMS]
[ 6170.036896] Start toggling
[ 6170.041412] CC1: 0 -> 0, CC2: 0 -> 0 [state TOGGLING, polarity 0, disconnected]
[ 6170.042973] CC1: 0 -> 0, CC2: 0 -> 5 [state TOGGLING, polarity 0, connected]
[ 6170.042976] state change TOGGLING -> SNK_ATTACH_WAIT [rev2 NONE_AMS]
[ 6170.042981] pending state change SNK_ATTACH_WAIT -> SNK_DEBOUNCED @ 170 ms [rev2 NONE_AMS]
[ 6170.213014] state change SNK_ATTACH_WAIT -> SNK_DEBOUNCED [delayed 170 ms]
[ 6170.213019] pending state change SNK_DEBOUNCED -> PORT_RESET @ 480 ms [rev2 NONE_AMS]
[ 6170.693068] state change SNK_DEBOUNCED -> PORT_RESET [delayed 480 ms]
[ 6170.693304] disable vbus discharge ret:0
[ 6170.693308] Setting usb_comm capable false
[ 6170.695193] Setting voltage/current limit 0 mV 0 mA
[ 6170.695210] polarity 0
[ 6170.695990] Requesting mux state 0, usb-role 0, orientation 0
[ 6170.701896] cc:=0
[ 6170.702181] pending state change PORT_RESET -> PORT_RESET_WAIT_OFF @ 100 ms [rev2 NONE_AMS]
[ 6170.703343] CC1: 0 -> 0, CC2: 5 -> 0 [state PORT_RESET, polarity 0, disconnected]

Fixes: f0690a25a140b8 ("staging: typec: USB Type-C Port Manager (tcpm)")
Cc: stable@vger.kernel.org
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20211130001825.3142830-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/typec/tcpm/tcpm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 291d020427924..721d9c4ddc81f 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -3293,11 +3293,7 @@ static void run_state_machine(struct tcpm_port *port)
 				       tcpm_try_src(port) ? SRC_TRY
 							  : SNK_ATTACHED,
 				       0);
-		else
-			/* Wait for VBUS, but not forever */
-			tcpm_set_state(port, PORT_RESET, PD_T_PS_SOURCE_ON);
 		break;
-
 	case SRC_TRY:
 		port->try_src_count++;
 		tcpm_set_cc(port, tcpm_rp_cc(port));
-- 
GitLab


From 1ed4a8fd363cd3d3e8b2853673b3ed84920a868e Mon Sep 17 00:00:00 2001
From: Feng Tang <feng.tang@intel.com>
Date: Wed, 17 Nov 2021 10:37:50 +0800
Subject: [PATCH 1993/4878] x86/tsc: Add a timer to make sure TSC_adjust is
 always checked

commit c7719e79347803b8e3b6b50da8c6db410a3012b5 upstream.

The TSC_ADJUST register is checked every time a CPU enters idle state, but
Thomas Gleixner mentioned there is still a caveat that a system won't enter
idle [1], either because it's too busy or configured purposely to not enter
idle.

Setup a periodic timer (every 10 minutes) to make sure the check is
happening on a regular base.

[1] https://lore.kernel.org/lkml/875z286xtk.fsf@nanos.tec.linutronix.de/

Fixes: 6e3cd95234dc ("x86/hpet: Use another crystalball to evaluate HPET usability")
Requested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211117023751.24190-1-feng.tang@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/tsc_sync.c | 41 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 3d3c761eb74a6..923660057f363 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -30,6 +30,7 @@ struct tsc_adjust {
 };
 
 static DEFINE_PER_CPU(struct tsc_adjust, tsc_adjust);
+static struct timer_list tsc_sync_check_timer;
 
 /*
  * TSC's on different sockets may be reset asynchronously.
@@ -77,6 +78,46 @@ void tsc_verify_tsc_adjust(bool resume)
 	}
 }
 
+/*
+ * Normally the tsc_sync will be checked every time system enters idle
+ * state, but there is still caveat that a system won't enter idle,
+ * either because it's too busy or configured purposely to not enter
+ * idle.
+ *
+ * So setup a periodic timer (every 10 minutes) to make sure the check
+ * is always on.
+ */
+
+#define SYNC_CHECK_INTERVAL		(HZ * 600)
+
+static void tsc_sync_check_timer_fn(struct timer_list *unused)
+{
+	int next_cpu;
+
+	tsc_verify_tsc_adjust(false);
+
+	/* Run the check for all onlined CPUs in turn */
+	next_cpu = cpumask_next(raw_smp_processor_id(), cpu_online_mask);
+	if (next_cpu >= nr_cpu_ids)
+		next_cpu = cpumask_first(cpu_online_mask);
+
+	tsc_sync_check_timer.expires += SYNC_CHECK_INTERVAL;
+	add_timer_on(&tsc_sync_check_timer, next_cpu);
+}
+
+static int __init start_sync_check_timer(void)
+{
+	if (!cpu_feature_enabled(X86_FEATURE_TSC_ADJUST) || tsc_clocksource_reliable)
+		return 0;
+
+	timer_setup(&tsc_sync_check_timer, tsc_sync_check_timer_fn, 0);
+	tsc_sync_check_timer.expires = jiffies + SYNC_CHECK_INTERVAL;
+	add_timer(&tsc_sync_check_timer);
+
+	return 0;
+}
+late_initcall(start_sync_check_timer);
+
 static void tsc_sanitize_first_cpu(struct tsc_adjust *cur, s64 bootval,
 				   unsigned int cpu, bool bootcpu)
 {
-- 
GitLab


From b3a519b5a58058c47e608802b7c01902a1ada0d9 Mon Sep 17 00:00:00 2001
From: Feng Tang <feng.tang@intel.com>
Date: Wed, 17 Nov 2021 10:37:51 +0800
Subject: [PATCH 1994/4878] x86/tsc: Disable clocksource watchdog for TSC on
 qualified platorms

commit b50db7095fe002fa3e16605546cba66bf1b68a3e upstream.

There are cases that the TSC clocksource is wrongly judged as unstable by
the clocksource watchdog mechanism which tries to validate the TSC against
HPET, PM_TIMER or jiffies. While there is hardly a general reliable way to
check the validity of a watchdog, Thomas Gleixner proposed [1]:

"I'm inclined to lift that requirement when the CPU has:

    1) X86_FEATURE_CONSTANT_TSC
    2) X86_FEATURE_NONSTOP_TSC
    3) X86_FEATURE_NONSTOP_TSC_S3
    4) X86_FEATURE_TSC_ADJUST
    5) At max. 4 sockets

 After two decades of horrors we're finally at a point where TSC seems
 to be halfway reliable and less abused by BIOS tinkerers. TSC_ADJUST
 was really key as we can now detect even small modifications reliably
 and the important point is that we can cure them as well (not pretty
 but better than all other options)."

As feature #3 X86_FEATURE_NONSTOP_TSC_S3 only exists on several generations
of Atom processorz, and is always coupled with X86_FEATURE_CONSTANT_TSC
and X86_FEATURE_NONSTOP_TSC, skip checking it, and also be more defensive
to use maximal 2 sockets.

The check is done inside tsc_init() before registering 'tsc-early' and
'tsc' clocksources, as there were cases that both of them had been
wrongly judged as unreliable.

For more background of tsc/watchdog, there is a good summary in [2]

[tglx} Update vs. jiffies:

  On systems where the only remaining clocksource aside of TSC is jiffies
  there is no way to make this work because that creates a circular
  dependency. Jiffies accuracy depends on not missing a periodic timer
  interrupt, which is not guaranteed. That could be detected by TSC, but as
  TSC is not trusted this cannot be compensated. The consequence is a
  circulus vitiosus which results in shutting down TSC and falling back to
  the jiffies clocksource which is even more unreliable.

[1]. https://lore.kernel.org/lkml/87eekfk8bd.fsf@nanos.tec.linutronix.de/
[2]. https://lore.kernel.org/lkml/87a6pimt1f.ffs@nanos.tec.linutronix.de/

[ tglx: Refine comment and amend changelog ]

Fixes: 6e3cd95234dc ("x86/hpet: Use another crystalball to evaluate HPET usability")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211117023751.24190-2-feng.tang@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/tsc.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 56289170753c5..f9f1b45e5ddc4 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1178,6 +1178,12 @@ void mark_tsc_unstable(char *reason)
 
 EXPORT_SYMBOL_GPL(mark_tsc_unstable);
 
+static void __init tsc_disable_clocksource_watchdog(void)
+{
+	clocksource_tsc_early.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
+	clocksource_tsc.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
+}
+
 static void __init check_system_tsc_reliable(void)
 {
 #if defined(CONFIG_MGEODEGX1) || defined(CONFIG_MGEODE_LX) || defined(CONFIG_X86_GENERIC)
@@ -1194,6 +1200,23 @@ static void __init check_system_tsc_reliable(void)
 #endif
 	if (boot_cpu_has(X86_FEATURE_TSC_RELIABLE))
 		tsc_clocksource_reliable = 1;
+
+	/*
+	 * Disable the clocksource watchdog when the system has:
+	 *  - TSC running at constant frequency
+	 *  - TSC which does not stop in C-States
+	 *  - the TSC_ADJUST register which allows to detect even minimal
+	 *    modifications
+	 *  - not more than two sockets. As the number of sockets cannot be
+	 *    evaluated at the early boot stage where this has to be
+	 *    invoked, check the number of online memory nodes as a
+	 *    fallback solution which is an reasonable estimate.
+	 */
+	if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC) &&
+	    boot_cpu_has(X86_FEATURE_NONSTOP_TSC) &&
+	    boot_cpu_has(X86_FEATURE_TSC_ADJUST) &&
+	    nr_online_nodes <= 2)
+		tsc_disable_clocksource_watchdog();
 }
 
 /*
@@ -1385,9 +1408,6 @@ static int __init init_tsc_clocksource(void)
 	if (tsc_unstable)
 		goto unreg;
 
-	if (tsc_clocksource_reliable || no_tsc_watchdog)
-		clocksource_tsc.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
-
 	if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC_S3))
 		clocksource_tsc.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
 
@@ -1525,7 +1545,7 @@ void __init tsc_init(void)
 	}
 
 	if (tsc_clocksource_reliable || no_tsc_watchdog)
-		clocksource_tsc_early.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
+		tsc_disable_clocksource_watchdog();
 
 	clocksource_register_khz(&clocksource_tsc_early, tsc_khz);
 	detect_art();
-- 
GitLab


From 67d08450a08d7d7c264038a3cb3fb4756827c5ec Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 2 Dec 2021 16:32:26 +0100
Subject: [PATCH 1995/4878] x86/64/mm: Map all kernel memory into
 trampoline_pgd

commit 51523ed1c26758de1af7e58730a656875f72f783 upstream.

The trampoline_pgd only maps the 0xfffffff000000000-0xffffffffffffffff
range of kernel memory (with 4-level paging). This range contains the
kernel's text+data+bss mappings and the module mapping space but not the
direct mapping and the vmalloc area.

This is enough to get the application processors out of real-mode, but
for code that switches back to real-mode the trampoline_pgd is missing
important parts of the address space. For example, consider this code
from arch/x86/kernel/reboot.c, function machine_real_restart() for a
64-bit kernel:

  #ifdef CONFIG_X86_32
  	load_cr3(initial_page_table);
  #else
  	write_cr3(real_mode_header->trampoline_pgd);

  	/* Exiting long mode will fail if CR4.PCIDE is set. */
  	if (boot_cpu_has(X86_FEATURE_PCID))
  		cr4_clear_bits(X86_CR4_PCIDE);
  #endif

  	/* Jump to the identity-mapped low memory code */
  #ifdef CONFIG_X86_32
  	asm volatile("jmpl *%0" : :
  		     "rm" (real_mode_header->machine_real_restart_asm),
  		     "a" (type));
  #else
  	asm volatile("ljmpl *%0" : :
  		     "m" (real_mode_header->machine_real_restart_asm),
  		     "D" (type));
  #endif

The code switches to the trampoline_pgd, which unmaps the direct mapping
and also the kernel stack. The call to cr4_clear_bits() will find no
stack and crash the machine. The real_mode_header pointer below points
into the direct mapping, and dereferencing it also causes a crash.

The reason this does not crash always is only that kernel mappings are
global and the CR3 switch does not flush those mappings. But if theses
mappings are not in the TLB already, the above code will crash before it
can jump to the real-mode stub.

Extend the trampoline_pgd to contain all kernel mappings to prevent
these crashes and to make code which runs on this page-table more
robust.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20211202153226.22946-5-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/realmode/init.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index 22fda7d991590..3313bffbecd4d 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -70,6 +70,7 @@ static void __init setup_real_mode(void)
 #ifdef CONFIG_X86_64
 	u64 *trampoline_pgd;
 	u64 efer;
+	int i;
 #endif
 
 	base = (unsigned char *)real_mode_header;
@@ -126,8 +127,17 @@ static void __init setup_real_mode(void)
 	trampoline_header->flags = 0;
 
 	trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
+
+	/* Map the real mode stub as virtual == physical */
 	trampoline_pgd[0] = trampoline_pgd_entry.pgd;
-	trampoline_pgd[511] = init_top_pgt[511].pgd;
+
+	/*
+	 * Include the entirety of the kernel mapping into the trampoline
+	 * PGD.  This way, all mappings present in the normal kernel page
+	 * tables are usable while running on trampoline_pgd.
+	 */
+	for (i = pgd_index(__PAGE_OFFSET); i < PTRS_PER_PGD; i++)
+		trampoline_pgd[i] = init_top_pgt[i].pgd;
 #endif
 
 	sme_sev_setup_real_mode(trampoline_header);
-- 
GitLab


From 946ded2287a0dede1d2e32e51f4ecb7bec7d6c0b Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Sat, 13 Nov 2021 13:10:50 +0100
Subject: [PATCH 1996/4878] tty: serial: msm_serial: Deactivate RX DMA for
 polling support

commit 7492ffc90fa126afb67d4392d56cb4134780194a upstream.

The CONSOLE_POLLING mode is used for tools like k(g)db. In this kind of
setup, it is often sharing a serial device with the normal system console.
This is usually no problem because the polling helpers can consume input
values directly (when in kgdb context) and the normal Linux handlers can
only consume new input values after kgdb switched back.

This is not true anymore when RX DMA is enabled for UARTDM controllers.
Single input values can no longer be received correctly. Instead following
seems to happen:

* on 1. input, some old input is read (continuously)
* on 2. input, two old inputs are read (continuously)
* on 3. input, three old input values are read (continuously)
* on 4. input, 4 previous inputs are received

This repeats then for each group of 4 input values.

This behavior changes slightly depending on what state the controller was
when the first input was received. But this makes working with kgdb
basically impossible because control messages are always corrupted when
kgdboc tries to parse them.

RX DMA should therefore be off when CONSOLE_POLLING is enabled to avoid
these kind of problems. No such problem was noticed for TX DMA.

Fixes: 99693945013a ("tty: serial: msm: Add RX DMA support")
Cc: stable@vger.kernel.org
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Link: https://lore.kernel.org/r/20211113121050.7266-1-sven@narfation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/msm_serial.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 87f005e5d2aff..26bcbec5422e2 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -599,6 +599,9 @@ static void msm_start_rx_dma(struct msm_port *msm_port)
 	u32 val;
 	int ret;
 
+	if (IS_ENABLED(CONFIG_CONSOLE_POLL))
+		return;
+
 	if (!dma->chan)
 		return;
 
-- 
GitLab


From 901f7e0aa4a6a62ec336d8478abafef8149d71fd Mon Sep 17 00:00:00 2001
From: Pierre Gondois <Pierre.Gondois@arm.com>
Date: Tue, 9 Nov 2021 17:22:48 +0000
Subject: [PATCH 1997/4878] serial: pl011: Add ACPI SBSA UART match id

commit ac442a077acf9a6bf1db4320ec0c3f303be092b3 upstream.

The document 'ACPI for Arm Components 1.0' defines the following
_HID mappings:
-'Prime cell UART (PL011)': ARMH0011
-'SBSA UART': ARMHB000

Use the sbsa-uart driver when a device is described with
the 'ARMHB000' _HID.

Note:
PL011 devices currently use the sbsa-uart driver instead of the
uart-pl011 driver. Indeed, PL011 devices are not bound to a clock
in ACPI. It is not possible to change their baudrate.

Cc: <stable@vger.kernel.org>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Link: https://lore.kernel.org/r/20211109172248.19061-1-Pierre.Gondois@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/amba-pl011.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 87dc3fc15694a..b3cddcdcbdad0 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2791,6 +2791,7 @@ MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);
 
 static const struct acpi_device_id sbsa_uart_acpi_match[] = {
 	{ "ARMH0011", 0 },
+	{ "ARMHB000", 0 },
 	{},
 };
 MODULE_DEVICE_TABLE(acpi, sbsa_uart_acpi_match);
-- 
GitLab


From bda142bbeb311509850b9d5e8858083c7282828a Mon Sep 17 00:00:00 2001
From: Patrik John <patrik.john@u-blox.com>
Date: Tue, 23 Nov 2021 14:27:38 +0100
Subject: [PATCH 1998/4878] serial: tegra: Change lower tolerance baud rate
 limit for tegra20 and tegra30

commit b40de7469ef135161c80af0e8c462298cc5dac00 upstream.

The current implementation uses 0 as lower limit for the baud rate
tolerance for tegra20 and tegra30 chips which causes isses on UART
initialization as soon as baud rate clock is lower than required even
when within the standard UART tolerance of +/- 4%.

This fix aligns the implementation with the initial commit description
of +/- 4% tolerance for tegra chips other than tegra186 and
tegra194.

Fixes: d781ec21bae6 ("serial: tegra: report clk rate errors")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Patrik John <patrik.john@u-blox.com>
Link: https://lore.kernel.org/r/sig.19614244f8.20211123132737.88341-1-patrik.john@u-blox.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/serial-tegra.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index 26fa69609ee5b..c2be22c3b7d1b 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1501,7 +1501,7 @@ static struct tegra_uart_chip_data tegra20_uart_chip_data = {
 	.fifo_mode_enable_status	= false,
 	.uart_max_port			= 5,
 	.max_dma_burst_bytes		= 4,
-	.error_tolerance_low_range	= 0,
+	.error_tolerance_low_range	= -4,
 	.error_tolerance_high_range	= 4,
 };
 
@@ -1512,7 +1512,7 @@ static struct tegra_uart_chip_data tegra30_uart_chip_data = {
 	.fifo_mode_enable_status	= false,
 	.uart_max_port			= 5,
 	.max_dma_burst_bytes		= 4,
-	.error_tolerance_low_range	= 0,
+	.error_tolerance_low_range	= -4,
 	.error_tolerance_high_range	= 4,
 };
 
-- 
GitLab


From e1722acf4f0d4d67b60f57e08ce16f8b66cd4b8f Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 8 Nov 2021 09:54:31 +0100
Subject: [PATCH 1999/4878] serial: core: fix transmit-buffer reset and memleak

commit 00de977f9e0aa9760d9a79d1e41ff780f74e3424 upstream.

Commit 761ed4a94582 ("tty: serial_core: convert uart_close to use
tty_port_close") converted serial core to use tty_port_close() but
failed to notice that the transmit buffer still needs to be freed on
final close.

Not freeing the transmit buffer means that the buffer is no longer
cleared on next open so that any ioctl() waiting for the buffer to drain
might wait indefinitely (e.g. on termios changes) or that stale data can
end up being transmitted in case tx is restarted.

Furthermore, the buffer of any port that has been opened would leak on
driver unbind.

Note that the port lock is held when clearing the buffer pointer due to
the ldisc race worked around by commit a5ba1d95e46e ("uart: fix race
between uart_put_char() and uart_shutdown()").

Also note that the tty-port shutdown() callback is not called for
console ports so it is not strictly necessary to free the buffer page
after releasing the lock (cf. d72402145ace ("tty/serial: do not free
trasnmit buffer page under port lock")).

Link: https://lore.kernel.org/r/319321886d97c456203d5c6a576a5480d07c3478.1635781688.git.baruch@tkos.co.il
Fixes: 761ed4a94582 ("tty: serial_core: convert uart_close to use tty_port_close")
Cc: stable@vger.kernel.org      # 4.9
Cc: Rob Herring <robh@kernel.org>
Reported-by: Baruch Siach <baruch@tkos.co.il>
Tested-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211108085431.12637-1-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/serial_core.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index e6fb5077fe349..8912ceb7337ad 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1576,6 +1576,7 @@ static void uart_tty_port_shutdown(struct tty_port *port)
 {
 	struct uart_state *state = container_of(port, struct uart_state, port);
 	struct uart_port *uport = uart_port_check(state);
+	char *buf;
 
 	/*
 	 * At this point, we stop accepting input.  To do this, we
@@ -1597,8 +1598,18 @@ static void uart_tty_port_shutdown(struct tty_port *port)
 	 */
 	tty_port_set_suspended(port, 0);
 
-	uart_change_pm(state, UART_PM_STATE_OFF);
+	/*
+	 * Free the transmit buffer.
+	 */
+	spin_lock_irq(&uport->lock);
+	buf = state->xmit.buf;
+	state->xmit.buf = NULL;
+	spin_unlock_irq(&uport->lock);
 
+	if (buf)
+		free_page((unsigned long)buf);
+
+	uart_change_pm(state, UART_PM_STATE_OFF);
 }
 
 static void uart_wait_until_sent(struct tty_struct *tty, int timeout)
-- 
GitLab


From 50b06889c86fcf760a5d148d3bfc2acf8e55069a Mon Sep 17 00:00:00 2001
From: Jay Dolan <jay.dolan@accesio.com>
Date: Mon, 22 Nov 2021 14:06:03 +0200
Subject: [PATCH 2000/4878] serial: 8250_pci: Fix ACCES entries in
 pci_serial_quirks array

commit c525c5d2437f93520388920baac6d9340c65d239 upstream.

Fix error in table for PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S that caused it
and PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4 to be missing their fourth port.

Fixes: 78d3820b9bd3 ("serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Jay Dolan <jay.dolan@accesio.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122120604.3909-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 58f718ed1bb98..086d606f15bbd 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -2317,12 +2317,19 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.setup      = pci_pericom_setup_four_at_eight,
 	},
 	{
-		.vendor     = PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S,
+		.vendor     = PCI_VENDOR_ID_ACCESIO,
 		.device     = PCI_DEVICE_ID_ACCESIO_PCIE_ICM232_4,
 		.subvendor  = PCI_ANY_ID,
 		.subdevice  = PCI_ANY_ID,
 		.setup      = pci_pericom_setup_four_at_eight,
 	},
+	{
+		.vendor     = PCI_VENDOR_ID_ACCESIO,
+		.device     = PCI_DEVICE_ID_ACCESIO_PCIE_ICM_4S,
+		.subvendor  = PCI_ANY_ID,
+		.subdevice  = PCI_ANY_ID,
+		.setup      = pci_pericom_setup_four_at_eight,
+	},
 	{
 		.vendor     = PCI_VENDOR_ID_ACCESIO,
 		.device     = PCI_DEVICE_ID_ACCESIO_MPCIE_ICM232_4,
-- 
GitLab


From f9802d7049f52bbcad47919ab83b9c6cbf6e91c5 Mon Sep 17 00:00:00 2001
From: Jay Dolan <jay.dolan@accesio.com>
Date: Mon, 22 Nov 2021 14:06:04 +0200
Subject: [PATCH 2001/4878] serial: 8250_pci: rewrite pericom_do_set_divisor()

commit bb1201d4b38ec67bd9a871cf86b0cc10f28b15b5 upstream.

Have pericom_do_set_divisor() use the uartclk instead of a hard coded
value to work with different speed crystals. Tested with 14.7456 and 24
MHz crystals.

Have pericom_do_set_divisor() always calculate the divisor rather than
call serial8250_do_set_divisor() for rates below baud_base.

Do not write registers or call serial8250_do_set_divisor() if valid
divisors could not be found.

Fixes: 6bf4e42f1d19 ("serial: 8250: Add support for higher baud rates to Pericom chips")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Jay Dolan <jay.dolan@accesio.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211122120604.3909-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 086d606f15bbd..019328d644d8b 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1349,29 +1349,33 @@ pericom_do_set_divisor(struct uart_port *port, unsigned int baud,
 {
 	int scr;
 	int lcr;
-	int actual_baud;
-	int tolerance;
 
-	for (scr = 5 ; scr <= 15 ; scr++) {
-		actual_baud = 921600 * 16 / scr;
-		tolerance = actual_baud / 50;
+	for (scr = 16; scr > 4; scr--) {
+		unsigned int maxrate = port->uartclk / scr;
+		unsigned int divisor = max(maxrate / baud, 1U);
+		int delta = maxrate / divisor - baud;
 
-		if ((baud < actual_baud + tolerance) &&
-			(baud > actual_baud - tolerance)) {
+		if (baud > maxrate + baud / 50)
+			continue;
 
+		if (delta > baud / 50)
+			divisor++;
+
+		if (divisor > 0xffff)
+			continue;
+
+		/* Update delta due to possible divisor change */
+		delta = maxrate / divisor - baud;
+		if (abs(delta) < baud / 50) {
 			lcr = serial_port_in(port, UART_LCR);
 			serial_port_out(port, UART_LCR, lcr | 0x80);
-
-			serial_port_out(port, UART_DLL, 1);
-			serial_port_out(port, UART_DLM, 0);
+			serial_port_out(port, UART_DLL, divisor & 0xff);
+			serial_port_out(port, UART_DLM, divisor >> 8 & 0xff);
 			serial_port_out(port, 2, 16 - scr);
 			serial_port_out(port, UART_LCR, lcr);
 			return;
-		} else if (baud > actual_baud) {
-			break;
 		}
 	}
-	serial8250_do_set_divisor(port, baud, quot, quot_frac);
 }
 static int pci_pericom_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
-- 
GitLab


From a5d0a72b805ec34d193828da698bf35e7fe30ee2 Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Mon, 22 Nov 2021 16:58:24 +0100
Subject: [PATCH 2002/4878] serial: 8250: Fix RTS modem control while in rs485
 mode

commit f85e04503f369b3f2be28c83fc48b74e19936ebc upstream.

Commit f45709df7731 ("serial: 8250: Don't touch RTS modem control while
in rs485 mode") sought to prevent user space from interfering with rs485
communication by ignoring a TIOCMSET ioctl() which changes RTS polarity.

It did so in serial8250_do_set_mctrl(), which turns out to be too deep
in the call stack:  When a uart_port is opened, RTS polarity is set by
the rs485-aware function uart_port_dtr_rts().  It calls down to
serial8250_do_set_mctrl() and that particular RTS polarity change should
*not* be ignored.

The user-visible result is that on 8250_omap ports which use rs485 with
inverse polarity (RTS bit in MCR register is 1 to receive, 0 to send),
a newly opened port initially sets up RTS for sending instead of
receiving.  That's because omap_8250_startup() sets the cached value
up->mcr to 0 and omap_8250_restore_regs() subsequently writes it to the
MCR register.  Due to the commit, serial8250_do_set_mctrl() preserves
that incorrect register value:

do_sys_openat2
  do_filp_open
    path_openat
      vfs_open
        do_dentry_open
	  chrdev_open
	    tty_open
	      uart_open
	        tty_port_open
		  uart_port_activate
		    uart_startup
		      uart_port_startup
		        serial8250_startup
			  omap_8250_startup # up->mcr = 0
			uart_change_speed
			  serial8250_set_termios
			    omap_8250_set_termios
			      omap_8250_restore_regs
			        serial8250_out_MCR # up->mcr written
		  tty_port_block_til_ready
		    uart_dtr_rts
		      uart_port_dtr_rts
		        serial8250_set_mctrl
			  omap8250_set_mctrl
			    serial8250_do_set_mctrl # mcr[1] = 1 ignored

Fix by intercepting RTS changes from user space in uart_tiocmset()
instead.

Link: https://lore.kernel.org/linux-serial/20211027111644.1996921-1-baocheng.su@siemens.com/
Fixes: f45709df7731 ("serial: 8250: Don't touch RTS modem control while in rs485 mode")
Cc: Chao Zeng <chao.zeng@siemens.com>
Cc: stable@vger.kernel.org # v5.7+
Reported-by: Su Bao Cheng <baocheng.su@siemens.com>
Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Tested-by: Su Bao Cheng <baocheng.su@siemens.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/21170e622a1aaf842a50b32146008b5374b3dd1d.1637596432.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_port.c | 7 -------
 drivers/tty/serial/serial_core.c    | 5 +++++
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 110a19c5138e8..7c07ebb37b1b9 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2029,13 +2029,6 @@ void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	struct uart_8250_port *up = up_to_u8250p(port);
 	unsigned char mcr;
 
-	if (port->rs485.flags & SER_RS485_ENABLED) {
-		if (serial8250_in_MCR(up) & UART_MCR_RTS)
-			mctrl |= TIOCM_RTS;
-		else
-			mctrl &= ~TIOCM_RTS;
-	}
-
 	mcr = serial8250_TIOCM_to_MCR(mctrl);
 
 	mcr = (mcr & up->mcr_mask) | up->mcr_force | up->mcr;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 8912ceb7337ad..046bedca7b8f5 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1102,6 +1102,11 @@ uart_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear)
 		goto out;
 
 	if (!tty_io_error(tty)) {
+		if (uport->rs485.flags & SER_RS485_ENABLED) {
+			set &= ~TIOCM_RTS;
+			clear &= ~TIOCM_RTS;
+		}
+
 		uart_update_mctrl(uport, set, clear);
 		ret = 0;
 	}
-- 
GitLab


From 01300d21505d30784a2085f0c5e3a79d76ab5af6 Mon Sep 17 00:00:00 2001
From: Mordechay Goodstein <mordechay.goodstein@intel.com>
Date: Wed, 10 Nov 2021 15:01:59 +0200
Subject: [PATCH 2003/4878] iwlwifi: mvm: retry init flow if failed

commit 5283dd677e52af9db6fe6ad11b2f12220d519d0c upstream.

In some very rare cases the init flow may fail.  In many cases, this is
recoverable, so we can retry.  Implement a loop to retry two more times
after the first attempt failed.

This can happen in two different situations, namely during probe and
during mac80211 start.  For the first case, a simple loop is enough.
For the second case, we need to add a flag to prevent mac80211 from
trying to restart it as well, leaving full control with the driver.

Cc: <stable@vger.kernel.org>
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20211110150132.57514296ecab.I52a0411774b700bdc7dedb124d8b59bf99456eb2@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  | 22 +++++++++++------
 drivers/net/wireless/intel/iwlwifi/iwl-drv.h  |  3 +++
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 24 ++++++++++++++++++-
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  3 +++
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c  |  3 +++
 5 files changed, 47 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 9dcd2e990c9c1..be214f39f52be 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1303,23 +1303,31 @@ _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
 	const struct iwl_op_mode_ops *ops = op->ops;
 	struct dentry *dbgfs_dir = NULL;
 	struct iwl_op_mode *op_mode = NULL;
+	int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY;
+
+	for (retry = 0; retry <= max_retry; retry++) {
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-	drv->dbgfs_op_mode = debugfs_create_dir(op->name,
-						drv->dbgfs_drv);
-	dbgfs_dir = drv->dbgfs_op_mode;
+		drv->dbgfs_op_mode = debugfs_create_dir(op->name,
+							drv->dbgfs_drv);
+		dbgfs_dir = drv->dbgfs_op_mode;
 #endif
 
-	op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir);
+		op_mode = ops->start(drv->trans, drv->trans->cfg,
+				     &drv->fw, dbgfs_dir);
+
+		if (op_mode)
+			return op_mode;
+
+		IWL_ERR(drv, "retry init count %d\n", retry);
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-	if (!op_mode) {
 		debugfs_remove_recursive(drv->dbgfs_op_mode);
 		drv->dbgfs_op_mode = NULL;
-	}
 #endif
+	}
 
-	return op_mode;
+	return NULL;
 }
 
 static void _iwl_op_mode_stop(struct iwl_drv *drv)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.h b/drivers/net/wireless/intel/iwlwifi/iwl-drv.h
index 8938a64679963..a6e9bc56f7ddd 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.h
@@ -144,4 +144,7 @@ void iwl_drv_stop(struct iwl_drv *drv);
 #define IWL_EXPORT_SYMBOL(sym)
 #endif
 
+/* max retry for init flow */
+#define IWL_MAX_INIT_RETRY 2
+
 #endif /* __iwl_drv_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 6f301ac8cce20..81cc85a97eb20 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -71,6 +71,7 @@
 #include <net/ieee80211_radiotap.h>
 #include <net/tcp.h>
 
+#include "iwl-drv.h"
 #include "iwl-op-mode.h"
 #include "iwl-io.h"
 #include "mvm.h"
@@ -1163,9 +1164,30 @@ static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	int ret;
+	int retry, max_retry = 0;
 
 	mutex_lock(&mvm->mutex);
-	ret = __iwl_mvm_mac_start(mvm);
+
+	/* we are starting the mac not in error flow, and restart is enabled */
+	if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
+	    iwlwifi_mod_params.fw_restart) {
+		max_retry = IWL_MAX_INIT_RETRY;
+		/*
+		 * This will prevent mac80211 recovery flows to trigger during
+		 * init failures
+		 */
+		set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
+	}
+
+	for (retry = 0; retry <= max_retry; retry++) {
+		ret = __iwl_mvm_mac_start(mvm);
+		if (!ret)
+			break;
+
+		IWL_ERR(mvm, "mac start retry %d\n", retry);
+	}
+	clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
+
 	mutex_unlock(&mvm->mutex);
 
 	return ret;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 7159d1da3e772..64f5a4cb3d3ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1162,6 +1162,8 @@ struct iwl_mvm {
  * @IWL_MVM_STATUS_FIRMWARE_RUNNING: firmware is running
  * @IWL_MVM_STATUS_NEED_FLUSH_P2P: need to flush P2P bcast STA
  * @IWL_MVM_STATUS_IN_D3: in D3 (or at least about to go into it)
+ * @IWL_MVM_STATUS_STARTING: starting mac,
+ *	used to disable restart flow while in STARTING state
  */
 enum iwl_mvm_status {
 	IWL_MVM_STATUS_HW_RFKILL,
@@ -1173,6 +1175,7 @@ enum iwl_mvm_status {
 	IWL_MVM_STATUS_FIRMWARE_RUNNING,
 	IWL_MVM_STATUS_NEED_FLUSH_P2P,
 	IWL_MVM_STATUS_IN_D3,
+	IWL_MVM_STATUS_STARTING,
 };
 
 /* Keep track of completed init configuration */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 0be8ff30b13e6..7c61d179895b3 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1295,6 +1295,9 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 	 */
 	if (!mvm->fw_restart && fw_error) {
 		iwl_fw_error_collect(&mvm->fwrt);
+	} else if (test_bit(IWL_MVM_STATUS_STARTING,
+			    &mvm->status)) {
+		IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
 	} else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
 		struct iwl_mvm_reprobe *reprobe;
 
-- 
GitLab


From dbe73dace94cb1a9e8657909b3551680a52e6bc0 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 4 Dec 2021 21:21:46 +0100
Subject: [PATCH 2004/4878] parisc: Mark cr16 CPU clocksource unstable on all
 SMP machines

commit afdb4a5b1d340e4afffc65daa21cc71890d7d589 upstream.

In commit c8c3735997a3 ("parisc: Enhance detection of synchronous cr16
clocksources") I assumed that CPUs on the same physical core are syncronous.
While booting up the kernel on two different C8000 machines, one with a
dual-core PA8800 and one with a dual-core PA8900 CPU, this turned out to be
wrong. The symptom was that I saw a jump in the internal clocks printed to the
syslog and strange overall behaviour.  On machines which have 4 cores (2
dual-cores) the problem isn't visible, because the current logic already marked
the cr16 clocksource unstable in this case.

This patch now marks the cr16 interval timers unstable if we have more than one
CPU in the system, and it fixes this issue.

Fixes: c8c3735997a3 ("parisc: Enhance detection of synchronous cr16 clocksources")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.15+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/time.c | 24 +++++-------------------
 1 file changed, 5 insertions(+), 19 deletions(-)

diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 13d94f0f94a08..42be3ff1315e5 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -252,27 +252,13 @@ void __init time_init(void)
 static int __init init_cr16_clocksource(void)
 {
 	/*
-	 * The cr16 interval timers are not syncronized across CPUs on
-	 * different sockets, so mark them unstable and lower rating on
-	 * multi-socket SMP systems.
+	 * The cr16 interval timers are not syncronized across CPUs, even if
+	 * they share the same socket.
 	 */
 	if (num_online_cpus() > 1 && !running_on_qemu) {
-		int cpu;
-		unsigned long cpu0_loc;
-		cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
-
-		for_each_online_cpu(cpu) {
-			if (cpu == 0)
-				continue;
-			if ((cpu0_loc != 0) &&
-			    (cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc))
-				continue;
-
-			clocksource_cr16.name = "cr16_unstable";
-			clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
-			clocksource_cr16.rating = 0;
-			break;
-		}
+		clocksource_cr16.name = "cr16_unstable";
+		clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
+		clocksource_cr16.rating = 0;
 	}
 
 	/* XXX: We may want to mark sched_clock stable here if cr16 clocks are
-- 
GitLab


From a8d18fb4d11bdac881931b9ca305d3ce5daa0eea Mon Sep 17 00:00:00 2001
From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Date: Mon, 29 Nov 2021 17:32:12 +0800
Subject: [PATCH 2005/4878] net/tls: Fix authentication failure in CCM mode

commit 5961060692f8b17cd2080620a3d27b95d2ae05ca upstream.

When the TLS cipher suite uses CCM mode, including AES CCM and
SM4 CCM, the first byte of the B0 block is flags, and the real
IV starts from the second byte. The XOR operation of the IV and
rec_seq should be skip this byte, that is, add the iv_offset.

Fixes: f295b3ae9f59 ("net/tls: Add support of AES128-CCM based ciphers")
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Cc: Vakul Garg <vakul.garg@nxp.com>
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/tls/tls_sw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 122d5daed8b61..8cd011ea9fbb8 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -515,7 +515,7 @@ static int tls_do_encryption(struct sock *sk,
 	memcpy(&rec->iv_data[iv_offset], tls_ctx->tx.iv,
 	       prot->iv_size + prot->salt_size);
 
-	xor_iv_with_seq(prot->version, rec->iv_data, tls_ctx->tx.rec_seq);
+	xor_iv_with_seq(prot->version, rec->iv_data + iv_offset, tls_ctx->tx.rec_seq);
 
 	sge->offset += prot->prepend_size;
 	sge->length -= prot->prepend_size;
@@ -1487,7 +1487,7 @@ static int decrypt_internal(struct sock *sk, struct sk_buff *skb,
 	else
 		memcpy(iv + iv_offset, tls_ctx->rx.iv, prot->salt_size);
 
-	xor_iv_with_seq(prot->version, iv, tls_ctx->rx.rec_seq);
+	xor_iv_with_seq(prot->version, iv + iv_offset, tls_ctx->rx.rec_seq);
 
 	/* Prepare AAD */
 	tls_make_aad(aad, rxm->full_len - prot->overhead_size +
-- 
GitLab


From e6edaf2677939a8cf57e9152b1ab07b80f83fa11 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Tue, 23 Nov 2021 08:36:18 +0000
Subject: [PATCH 2006/4878] ipmi: msghandler: Make symbol 'remove_work_wq'
 static

commit 5a3ba99b62d8486de0316334e72ac620d4b94fdd upstream.

The sparse tool complains as follows:

drivers/char/ipmi/ipmi_msghandler.c:194:25: warning:
 symbol 'remove_work_wq' was not declared. Should it be static?

This symbol is not used outside of ipmi_msghandler.c, so
marks it static.

Fixes: 1d49eb91e86e ("ipmi: Move remove_work to dedicated workqueue")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Message-Id: <20211123083618.2366808-1-weiyongjun1@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index b888e3cf4b8b8..38b545bef05a3 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -203,7 +203,7 @@ struct ipmi_user {
 	struct work_struct remove_work;
 };
 
-struct workqueue_struct *remove_work_wq;
+static struct workqueue_struct *remove_work_wq;
 
 static struct ipmi_user *acquire_ipmi_user(struct ipmi_user *user, int *index)
 	__acquires(user->release_barrier)
-- 
GitLab


From a0582e24d371d62a749a14e4187af304bd64ef42 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 8 Dec 2021 09:03:30 +0100
Subject: [PATCH 2007/4878] Linux 5.10.84

Link: https://lore.kernel.org/r/20211206145559.607158688@linuxfoundation.org
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Link: https://lore.kernel.org/r/20211207081114.760201765@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>                              =
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 4646baabfe783..cce1e5dac06fb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 83
+SUBLEVEL = 84
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From c28e885b53c9f86314188a870637ae1434242142 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Tue, 7 Dec 2021 10:23:35 -0800
Subject: [PATCH 2008/4878] ANDROID: Revert "Revert "scsi: block: Do not accept
 any requests while suspended""

Patch https://android-review.googlesource.com/c/kernel/common/+/1763479
reverted an upstream patch because at the time of the revert the UFS
driver did not yet support runtime power management (RPM) correctly.
Now that the UFS driver supports RPM, switch back to the upstream
implementation of RPM.

Bug: 209633402
Change-Id: I0b51043f2cd13550c511cbdc80c5684917259d01
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 block/blk-core.c       |  7 ++++---
 block/blk-pm.h         | 14 +++++++++-----
 include/linux/blkdev.h | 12 ++++++++++++
 3 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index cf92e429a2a2e..26664f2a139eb 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -18,6 +18,7 @@
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 #include <linux/blk-mq.h>
+#include <linux/blk-pm.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
 #include <linux/pagemap.h>
@@ -439,7 +440,8 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
 			 * responsible for ensuring that that counter is
 			 * globally visible before the queue is unfrozen.
 			 */
-			if (pm || !blk_queue_pm_only(q)) {
+			if ((pm && queue_rpm_status(q) != RPM_SUSPENDED) ||
+			    !blk_queue_pm_only(q)) {
 				success = true;
 			} else {
 				percpu_ref_put(&q->q_usage_counter);
@@ -464,8 +466,7 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
 
 		wait_event(q->mq_freeze_wq,
 			   (!q->mq_freeze_depth &&
-			    (pm || (blk_pm_request_resume(q),
-				    !blk_queue_pm_only(q)))) ||
+			    blk_pm_resume_queue(pm, q)) ||
 			   blk_queue_dying(q));
 		if (blk_queue_dying(q))
 			return -ENODEV;
diff --git a/block/blk-pm.h b/block/blk-pm.h
index ea5507d23e759..a2283cc9f716d 100644
--- a/block/blk-pm.h
+++ b/block/blk-pm.h
@@ -6,11 +6,14 @@
 #include <linux/pm_runtime.h>
 
 #ifdef CONFIG_PM
-static inline void blk_pm_request_resume(struct request_queue *q)
+static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q)
 {
-	if (q->dev && (q->rpm_status == RPM_SUSPENDED ||
-		       q->rpm_status == RPM_SUSPENDING))
-		pm_request_resume(q->dev);
+	if (!q->dev || !blk_queue_pm_only(q))
+		return 1;	/* Nothing to do */
+	if (pm && q->rpm_status != RPM_SUSPENDED)
+		return 1;	/* Request allowed */
+	pm_request_resume(q->dev);
+	return 0;
 }
 
 static inline void blk_pm_mark_last_busy(struct request *rq)
@@ -44,8 +47,9 @@ static inline void blk_pm_put_request(struct request *rq)
 		--rq->q->nr_pending;
 }
 #else
-static inline void blk_pm_request_resume(struct request_queue *q)
+static inline int blk_pm_resume_queue(const bool pm, struct request_queue *q)
 {
+	return 1;
 }
 
 static inline void blk_pm_mark_last_busy(struct request *rq)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index b3ad2a78ac1b6..2e1dfba8d1fdd 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -712,6 +712,18 @@ static inline bool queue_is_mq(struct request_queue *q)
 	return q->mq_ops;
 }
 
+#ifdef CONFIG_PM
+static inline enum rpm_status queue_rpm_status(struct request_queue *q)
+{
+	return q->rpm_status;
+}
+#else
+static inline enum rpm_status queue_rpm_status(struct request_queue *q)
+{
+	return RPM_ACTIVE;
+}
+#endif
+
 static inline enum blk_zoned_model
 blk_queue_zoned_model(struct request_queue *q)
 {
-- 
GitLab


From a050c009accf19e5a7c87dad180d954ea4b2286b Mon Sep 17 00:00:00 2001
From: Martin Kepplinger <martin.kepplinger@puri.sm>
Date: Sun, 4 Jul 2021 09:54:01 +0200
Subject: [PATCH 2009/4878] UPSTREAM: scsi: core: Add new flag
 BLIST_IGN_MEDIA_CHANGE

Add a new flag for devices that erroneously establish MEDIUM MAY HAVE
CHANGED unit attentions. Drivers can set this flag to make the SCSI
layer ignore media change events during resume.

[mkp: add "ignore" and add corresponding flag to struct scsi_device]

Link: https://lore.kernel.org/r/20210704075403.147114-2-martin.kepplinger@puri.sm
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit f591a2e0548da88130c7b1c79f1f735273adc683)
Bug: 209633402
Change-Id: I6f79f6db782b05728b704a663186f5e32a35df78
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/scsi_scan.c    | 3 +++
 include/scsi/scsi_device.h  | 1 +
 include/scsi/scsi_devinfo.h | 6 +++---
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 8e474b1452495..c16594464bf2f 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -952,6 +952,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	if (*bflags & BLIST_UNMAP_LIMIT_WS)
 		sdev->unmap_limit_for_ws = 1;
 
+	if (*bflags & BLIST_IGN_MEDIA_CHANGE)
+		sdev->ignore_media_change = 1;
+
 	sdev->eh_timeout = SCSI_DEFAULT_EH_TIMEOUT;
 
 	if (*bflags & BLIST_TRY_VPD_PAGES)
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index a463f14c26b9b..0dd9dbc2ae21c 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -205,6 +205,7 @@ struct scsi_device {
 	unsigned unmap_limit_for_ws:1;	/* Use the UNMAP limit for WRITE SAME */
 	unsigned rpm_autosuspend:1;	/* Enable runtime autosuspend at device
 					 * creation time */
+	unsigned ignore_media_change:1; /* Ignore MEDIA CHANGE on resume */
 
 	bool offline_already;		/* Device offline message logged */
 
diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h
index 3fdb322d4c4bb..5d14adae21c78 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -28,7 +28,8 @@
 #define BLIST_LARGELUN		((__force blist_flags_t)(1ULL << 9))
 /* override additional length field */
 #define BLIST_INQUIRY_36	((__force blist_flags_t)(1ULL << 10))
-#define __BLIST_UNUSED_11	((__force blist_flags_t)(1ULL << 11))
+/* ignore MEDIA CHANGE unit attention after resuming from runtime suspend */
+#define BLIST_IGN_MEDIA_CHANGE	((__force blist_flags_t)(1ULL << 11))
 /* do not do automatic start on add */
 #define BLIST_NOSTARTONADD	((__force blist_flags_t)(1ULL << 12))
 #define __BLIST_UNUSED_13	((__force blist_flags_t)(1ULL << 13))
@@ -73,8 +74,7 @@
 #define __BLIST_HIGH_UNUSED (~(__BLIST_LAST_USED | \
 			       (__force blist_flags_t) \
 			       ((__force __u64)__BLIST_LAST_USED - 1ULL)))
-#define __BLIST_UNUSED_MASK (__BLIST_UNUSED_11 | \
-			     __BLIST_UNUSED_13 | \
+#define __BLIST_UNUSED_MASK (__BLIST_UNUSED_13 | \
 			     __BLIST_UNUSED_14 | \
 			     __BLIST_UNUSED_15 | \
 			     __BLIST_UNUSED_16 | \
-- 
GitLab


From ccddc86cbef704e6908e283cdef7fa484a75105a Mon Sep 17 00:00:00 2001
From: Martin Kepplinger <martin.kepplinger@puri.sm>
Date: Sun, 4 Jul 2021 09:54:02 +0200
Subject: [PATCH 2010/4878] UPSTREAM: scsi: sd: REQUEST SENSE for
 BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()

For SD card reader devices that have the BLIST_IGN_MEDIA_CHANGE flag
set, a MEDIUM MAY HAVE CHANGED unit attention is established after
resuming from runtime suspend. Send a REQUEST SENSE to consume the UA.

The "downside" is that for these devices we now rely on users to not
change the medium (SD card) *during* a runtime suspend/resume cycle,
i.e. when not unmounting.

To enable runtime PM for an SD cardreader (device number 0:0:0:0), do:

echo 0 > /sys/module/block/parameters/events_dfl_poll_msecs
echo 1000 > /sys/bus/scsi/devices/0:0:0:0/power/autosuspend_delay_ms
echo auto > /sys/bus/scsi/devices/0:0:0:0/power/control

[mkp: use scsi_device flag instead of poking at BLIST]

Link: https://lore.kernel.org/r/20210704075403.147114-3-martin.kepplinger@puri.sm
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ed4246d37f3b94e429d020cac692434a00bae4cc)
Bug: 209633402
Change-Id: I2eb06ce9d972870bc4cf7d3fe3a1a586af6f7242
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/sd.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 56e2917085874..1578a682b42cb 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -114,6 +114,7 @@ static void sd_shutdown(struct device *);
 static int sd_suspend_system(struct device *);
 static int sd_suspend_runtime(struct device *);
 static int sd_resume(struct device *);
+static int sd_resume_runtime(struct device *);
 static void sd_rescan(struct device *);
 static blk_status_t sd_init_command(struct scsi_cmnd *SCpnt);
 static void sd_uninit_command(struct scsi_cmnd *SCpnt);
@@ -608,7 +609,7 @@ static const struct dev_pm_ops sd_pm_ops = {
 	.poweroff		= sd_suspend_system,
 	.restore		= sd_resume,
 	.runtime_suspend	= sd_suspend_runtime,
-	.runtime_resume		= sd_resume,
+	.runtime_resume		= sd_resume_runtime,
 };
 
 static struct scsi_driver sd_template = {
@@ -3724,6 +3725,25 @@ static int sd_resume(struct device *dev)
 	return ret;
 }
 
+static int sd_resume_runtime(struct device *dev)
+{
+	struct scsi_disk *sdkp = dev_get_drvdata(dev);
+	struct scsi_device *sdp = sdkp->device;
+
+	if (sdp->ignore_media_change) {
+		/* clear the device's sense data */
+		static const u8 cmd[10] = { REQUEST_SENSE };
+
+		if (scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL,
+				 NULL, sdp->request_queue->rq_timeout, 1, 0,
+				 RQF_PM, NULL))
+			sd_printk(KERN_NOTICE, sdkp,
+				  "Failed to clear sense data\n");
+	}
+
+	return sd_resume(dev);
+}
+
 /**
  *	init_sd - entry point for this driver (both when built in or when
  *	a module).
-- 
GitLab


From ad05868a5bf8ee1df01bea7520ea58f151ef8e60 Mon Sep 17 00:00:00 2001
From: Miles Chen <miles.chen@mediatek.com>
Date: Fri, 15 Oct 2021 15:46:54 +0800
Subject: [PATCH 2011/4878] UPSTREAM: scsi: sd: Fix crashes in
 sd_resume_runtime()

After commit ed4246d37f3b ("scsi: sd: REQUEST SENSE for
BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()"), the following crash
was observed.

static int sd_resume_runtime(struct device *dev)
{
        struct scsi_disk *sdkp = dev_get_drvdata(dev);
        struct scsi_device *sdp = sdkp->device; // sdkp == NULL and crash

        if (sdp->ignore_media_change) {
	...
}

It is possible for sdkp to be NULL in sd_resume_runtime(). To fix this
crash, follow sd_resume() to test if sdkp is NULL before dereferencing it.

Crash:
[    4.695171][  T151] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
[    4.696591][  T151] Mem abort info:
[    4.697919][  T151]   ESR = 0x96000005
[    4.699692][  T151]   EC = 0x25: DABT (current EL), IL = 32 bits
[    4.701990][  T151]   SET = 0, FnV = 0
[    4.702513][  T151]   EA = 0, S1PTW = 0
[    4.704431][  T151]   FSC = 0x05: level 1 translation fault
[    4.705254][  T151] Data abort info:
[    4.705806][  T151]   ISV = 0, ISS = 0x00000005
[    4.706484][  T151]   CM = 0, WnR = 0
[    4.707048][  T151] [0000000000000008] user address but active_mm is swapper
[    4.710577][  T151] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[    4.832361][  T151] Kernel Offset: 0x12acc80000 from 0xffffffc010000000
[    4.833254][  T151] PHYS_OFFSET: 0x40000000
[    4.833814][  T151] pstate: 80400005 (Nzcv daif +PAN -UAO)
[    4.834546][  T151] pc : sd_resume_runtime+0x20/0x14c
[    4.835227][  T151] lr : scsi_runtime_resume+0x84/0xe4
[    4.835916][  T151] sp : ffffffc0110db8d0
[    4.836450][  T151] x29: ffffffc0110db8d0 x28: 0000000000000001
[    4.837258][  T151] x27: ffffff80c0bd1ac0 x26: ffffff80c0bd1ad0
[    4.838063][  T151] x25: ffffff80cea7e448 x24: ffffffd2bf961000
[    4.838867][  T151] x23: ffffffd2be69f838 x22: ffffffd2bd9dfb4c
[    4.839670][  T151] x21: 0000000000000000 x20: ffffff80cea7e000
[    4.840474][  T151] x19: ffffff80cea7e260 x18: ffffffc0110dd078
[    4.841277][  T151] x17: 00000000658783d9 x16: 0000000051469dac
[    4.842081][  T151] x15: 00000000b87f6327 x14: 0000000068fd680d
[    4.842885][  T151] x13: ffffff80c0bd2470 x12: ffffffd2bfa7f5f0
[    4.843688][  T151] x11: 0000000000000078 x10: 0000000000000001
[    4.844492][  T151] x9 : 00000000000000b1 x8 : ffffffd2be69f88c
[    4.845295][  T151] x7 : ffffffd2bd9e0e5c x6 : 0000000000000000
[    4.846099][  T151] x5 : 0000000000000080 x4 : 0000000000000001
[    4.846902][  T151] x3 : 68fd680dfe4ebe5e x2 : 0000000000000003
[    4.847706][  T151] x1 : ffffffd2bf7f9380 x0 : ffffff80cea7e260
[    4.856708][  T151]  die+0x16c/0x59c
[    4.857191][  T151]  __do_kernel_fault+0x1e8/0x210
[    4.857833][  T151]  do_page_fault+0xa4/0x654
[    4.858418][  T151]  do_translation_fault+0x6c/0x1b0
[    4.859083][  T151]  do_mem_abort+0x68/0x10c
[    4.859655][  T151]  el1_abort+0x40/0x64
[    4.860182][  T151]  el1h_64_sync_handler+0x54/0x88
[    4.860834][  T151]  el1h_64_sync+0x7c/0x80
[    4.861395][  T151]  sd_resume_runtime+0x20/0x14c
[    4.862025][  T151]  scsi_runtime_resume+0x84/0xe4
[    4.862667][  T151]  __rpm_callback+0x1f4/0x8cc
[    4.863275][  T151]  rpm_resume+0x7e8/0xaa4
[    4.863836][  T151]  __pm_runtime_resume+0xa0/0x110
[    4.864489][  T151]  sd_probe+0x30/0x428
[    4.865016][  T151]  really_probe+0x14c/0x500
[    4.865602][  T151]  __driver_probe_device+0xb4/0x18c
[    4.866278][  T151]  driver_probe_device+0x60/0x2c4
[    4.866931][  T151]  __device_attach_driver+0x228/0x2bc
[    4.867630][  T151]  __device_attach_async_helper+0x154/0x21c
[    4.868398][  T151]  async_run_entry_fn+0x5c/0x1c4
[    4.869038][  T151]  process_one_work+0x3ac/0x590
[    4.869670][  T151]  worker_thread+0x320/0x758
[    4.870265][  T151]  kthread+0x2e8/0x35c
[    4.870792][  T151]  ret_from_fork+0x10/0x20

Link: https://lore.kernel.org/r/20211015074654.19615-1-miles.chen@mediatek.com
Fixes: ed4246d37f3b ("scsi: sd: REQUEST SENSE for BLIST_IGN_MEDIA_CHANGE devices in runtime_resume()")
Cc: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 85374b6392293d103c2b3406ceb9a1253f81d328)
Bug: 209633402
Change-Id: I556b5573ef4a7a72d0d147eca4e3e21d09406ba6
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/sd.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 1578a682b42cb..4a338711eda56 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3728,7 +3728,12 @@ static int sd_resume(struct device *dev)
 static int sd_resume_runtime(struct device *dev)
 {
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
-	struct scsi_device *sdp = sdkp->device;
+	struct scsi_device *sdp;
+
+	if (!sdkp)	/* E.g.: runtime resume at the start of sd_probe() */
+		return 0;
+
+	sdp = sdkp->device;
 
 	if (sdp->ignore_media_change) {
 		/* clear the device's sense data */
-- 
GitLab


From 51cf1e50b658436b197531f9ab66974dd0423b5a Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 6 Oct 2021 14:54:51 -0700
Subject: [PATCH 2012/4878] UPSTREAM: scsi: core: pm: Rely on the device driver
 core for async power management

Instead of implementing asynchronous resume support in the SCSI core, rely
on the device driver core for resuming SCSI devices asynchronously.
Instead of only supporting asynchronous resumes, also support asynchronous
suspends.

Link: https://lore.kernel.org/r/20211006215453.3318929-2-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit a19a93e4c6a98c9c0f2f5a6db76846f10d7d1f85)
Bug: 209633402
Change-Id: I7c3ad211b0524df9fff1865013bc48e763d48caf
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/hosts.c      |  1 +
 drivers/scsi/scsi.c       |  8 -------
 drivers/scsi/scsi_pm.c    | 44 ++-------------------------------------
 drivers/scsi/scsi_priv.h  |  4 +---
 drivers/scsi/scsi_scan.c  | 17 +++++++++++++++
 drivers/scsi/scsi_sysfs.c |  1 +
 drivers/scsi/sd.c         |  1 -
 7 files changed, 22 insertions(+), 54 deletions(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index d664c4650b2dd..1f3f5fd00179c 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -481,6 +481,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	dev_set_name(&shost->shost_gendev, "host%d", shost->host_no);
 	shost->shost_gendev.bus = &scsi_bus_type;
 	shost->shost_gendev.type = &scsi_host_type;
+	scsi_enable_async_suspend(&shost->shost_gendev);
 
 	device_initialize(&shost->shost_dev);
 	shost->shost_dev.parent = &shost->shost_gendev;
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 6ad834d61d4c7..be399e0fd0385 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -86,14 +86,6 @@ unsigned int scsi_logging_level;
 EXPORT_SYMBOL(scsi_logging_level);
 #endif
 
-/*
- * Domain for asynchronous system resume operations.  It is marked 'exclusive'
- * to avoid being included in the async_synchronize_full() that is invoked by
- * dpm_resume().
- */
-ASYNC_DOMAIN_EXCLUSIVE(scsi_sd_pm_domain);
-EXPORT_SYMBOL(scsi_sd_pm_domain);
-
 #ifdef CONFIG_SCSI_LOGGING
 void scsi_log_send(struct scsi_cmnd *cmd)
 {
diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 3717eea37ecb3..50b6bad4df79b 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -56,9 +56,6 @@ static int scsi_dev_type_suspend(struct device *dev,
 	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
 	int err;
 
-	/* flush pending in-flight resume operations, suspend is synchronous */
-	async_synchronize_full_domain(&scsi_sd_pm_domain);
-
 	err = scsi_device_quiesce(to_scsi_device(dev));
 	if (err == 0) {
 		err = cb(dev, pm);
@@ -123,48 +120,11 @@ scsi_bus_suspend_common(struct device *dev,
 	return err;
 }
 
-static void async_sdev_resume(void *dev, async_cookie_t cookie)
-{
-	scsi_dev_type_resume(dev, do_scsi_resume);
-}
-
-static void async_sdev_thaw(void *dev, async_cookie_t cookie)
-{
-	scsi_dev_type_resume(dev, do_scsi_thaw);
-}
-
-static void async_sdev_restore(void *dev, async_cookie_t cookie)
-{
-	scsi_dev_type_resume(dev, do_scsi_restore);
-}
-
 static int scsi_bus_resume_common(struct device *dev,
 		int (*cb)(struct device *, const struct dev_pm_ops *))
 {
-	async_func_t fn;
-
-	if (!scsi_is_sdev_device(dev))
-		fn = NULL;
-	else if (cb == do_scsi_resume)
-		fn = async_sdev_resume;
-	else if (cb == do_scsi_thaw)
-		fn = async_sdev_thaw;
-	else if (cb == do_scsi_restore)
-		fn = async_sdev_restore;
-	else
-		fn = NULL;
-
-	if (fn) {
-		async_schedule_domain(fn, dev, &scsi_sd_pm_domain);
-
-		/*
-		 * If a user has disabled async probing a likely reason
-		 * is due to a storage enclosure that does not inject
-		 * staggered spin-ups.  For safety, make resume
-		 * synchronous as well in that case.
-		 */
-		if (strncmp(scsi_scan_type, "async", 5) != 0)
-			async_synchronize_full_domain(&scsi_sd_pm_domain);
+	if (scsi_is_sdev_device(dev)) {
+		scsi_dev_type_resume(dev, cb);
 	} else {
 		pm_runtime_disable(dev);
 		pm_runtime_set_active(dev);
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 180636d54982d..614cb4b7aba43 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -117,7 +117,7 @@ extern void scsi_exit_procfs(void);
 #endif /* CONFIG_PROC_FS */
 
 /* scsi_scan.c */
-extern char scsi_scan_type[];
+void scsi_enable_async_suspend(struct device *dev);
 extern int scsi_complete_async_scans(void);
 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
 				   unsigned int, u64, enum scsi_scan_mode);
@@ -171,8 +171,6 @@ static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
 static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
 #endif /* CONFIG_PM */
 
-extern struct async_domain scsi_sd_pm_domain;
-
 /* scsi_dh.c */
 #ifdef CONFIG_SCSI_DH
 void scsi_dh_add_device(struct scsi_device *sdev);
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index c16594464bf2f..6f3a1f1f7ec1f 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -122,6 +122,22 @@ struct async_scan_data {
 	struct completion prev_finished;
 };
 
+/**
+ * scsi_enable_async_suspend - Enable async suspend and resume
+ */
+void scsi_enable_async_suspend(struct device *dev)
+{
+	/*
+	 * If a user has disabled async probing a likely reason is due to a
+	 * storage enclosure that does not inject staggered spin-ups. For
+	 * safety, make resume synchronous as well in that case.
+	 */
+	if (strncmp(scsi_scan_type, "async", 5) != 0)
+		return;
+	/* Enable asynchronous suspend and resume. */
+	device_enable_async_suspend(dev);
+}
+
 /**
  * scsi_complete_async_scans - Wait for asynchronous scans to complete
  *
@@ -430,6 +446,7 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
 	dev_set_name(dev, "target%d:%d:%d", shost->host_no, channel, id);
 	dev->bus = &scsi_bus_type;
 	dev->type = &scsi_target_type;
+	scsi_enable_async_suspend(dev);
 	starget->id = id;
 	starget->channel = channel;
 	starget->can_queue = 0;
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 42db9c52208e6..29db4db76b393 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1625,6 +1625,7 @@ void scsi_sysfs_device_initialize(struct scsi_device *sdev)
 	device_initialize(&sdev->sdev_gendev);
 	sdev->sdev_gendev.bus = &scsi_bus_type;
 	sdev->sdev_gendev.type = &scsi_dev_type;
+	scsi_enable_async_suspend(&sdev->sdev_gendev);
 	dev_set_name(&sdev->sdev_gendev, "%d:%d:%d:%llu",
 		     sdev->host->host_no, sdev->channel, sdev->id, sdev->lun);
 
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 4a338711eda56..7fdcb4b5af9f1 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3539,7 +3539,6 @@ static int sd_remove(struct device *dev)
 	devt = disk_devt(sdkp->disk);
 	scsi_autopm_get_device(sdkp->device);
 
-	async_synchronize_full_domain(&scsi_sd_pm_domain);
 	device_del(&sdkp->dev);
 	del_gendisk(sdkp->disk);
 	sd_shutdown(dev);
-- 
GitLab


From 903ab39b1812e747a11047af5d145d319c1c1117 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 6 Oct 2021 14:54:52 -0700
Subject: [PATCH 2013/4878] UPSTREAM: scsi: sd: Rename sd_resume() into
 sd_resume_system()

This patch does not change any functionality but makes the next patch in
this series easier to read.

Link: https://lore.kernel.org/r/20211006215453.3318929-3-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 1c9575326a4a09bdb82c104ed1ab4e932c7a1f49)
Bug: 209633402
Change-Id: Idbc65b493219a09af64c0a40bec96ec600471aab
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/sd.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 7fdcb4b5af9f1..29d14bb2d1423 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -113,7 +113,7 @@ static int  sd_remove(struct device *);
 static void sd_shutdown(struct device *);
 static int sd_suspend_system(struct device *);
 static int sd_suspend_runtime(struct device *);
-static int sd_resume(struct device *);
+static int sd_resume_system(struct device *);
 static int sd_resume_runtime(struct device *);
 static void sd_rescan(struct device *);
 static blk_status_t sd_init_command(struct scsi_cmnd *SCpnt);
@@ -605,9 +605,9 @@ static struct class sd_disk_class = {
 
 static const struct dev_pm_ops sd_pm_ops = {
 	.suspend		= sd_suspend_system,
-	.resume			= sd_resume,
+	.resume			= sd_resume_system,
 	.poweroff		= sd_suspend_system,
-	.restore		= sd_resume,
+	.restore		= sd_resume_system,
 	.runtime_suspend	= sd_suspend_runtime,
 	.runtime_resume		= sd_resume_runtime,
 };
@@ -3724,6 +3724,11 @@ static int sd_resume(struct device *dev)
 	return ret;
 }
 
+static int sd_resume_system(struct device *dev)
+{
+	return sd_resume(dev);
+}
+
 static int sd_resume_runtime(struct device *dev)
 {
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
-- 
GitLab


From 0e1c8364f70c96bd0411036d96249eed6a18d815 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 6 Oct 2021 14:54:53 -0700
Subject: [PATCH 2014/4878] UPSTREAM: scsi: core: pm: Only runtime resume if
 necessary

The following query shows which drivers define callbacks that are called by
the power management support code in the SCSI core (scsi_pm.c):

$ git grep -nHEwA16 "$(echo $(git grep -h 'scsi_register_driver(&' |
      sed 's/.*&//;s/\..*//') | sed 's/ /|/g')" |
    grep '\.pm[[:blank:]]*=[[:blank:]]'
drivers/scsi/sd.c-620-			.pm = &sd_pm_ops,
drivers/scsi/sr.c-100-			.pm = &sr_pm_ops,
drivers/scsi/ufs/ufshcd.c-9765-		.pm = &ufshcd_wl_pm_ops,

Since unconditionally runtime resuming a device during system resume is not
necessary, remove that code. Modify the SCSI disk (sd) driver such that it
follows the same approach as the UFS driver, namely to skip system suspend
and resume for devices that are runtime suspended. The CD-ROM code does not
need to be updated since its PM callbacks do not affect the device power
state.

This patch has been tested as follows:

[ shell 1 ]

cd /sys/kernel/debug/tracing
grep -E 'blk_(pre|post)_runtime|runtime_(suspend|resume)|autosuspend_delay|pm_runtime_(get|put)' available_filter_functions |
  while read a b; do echo "$a"; done |
  grep -v __pm_runtime_resume >set_ftrace_filter
echo function > current_tracer
echo 1 > tracing_on
cat trace_pipe

[ shell 2 ]

cd /sys/block/sr0
 # Increase the event poll interval to make it easier to derive from the
 # tracing output whether runtime power actions are the result of sg_inq.
echo 30000 > events_poll_msecs
cd device/power
 # Enable runtime power management.
echo auto > control
echo 1000 > autosuspend_delay_ms
sleep 1
 # Verify in shell 1 that sr0 has been runtime suspended
sg_inq /dev/sr0
eject /dev/sr0
sg_inq /dev/sr0
 # Disable runtime power management.
echo on > control

cd /sys/block/sda/device/power
echo auto > control
echo 1000 > autosuspend_delay_ms
sleep 1
 # Verify in shell 1 that sr0 has been runtime suspended
sg_inq /dev/sda

Link: https://lore.kernel.org/r/20211006215453.3318929-4-bvanassche@acm.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9131bff6a9f1d4c6ab2d4673974a9659d8d24dc7)
Bug: 209633402
Test: cd /sys/devices/platform/14700000.ufs/host0/target0:0:0 && for f in */power/control; do echo auto >$f; done && for f in */power/autosuspend_delay_ms; do echo 100 >$f; done && cd /sys/kernel/tracing/events/rpm && for e in rpm_idle rpm_suspend rpm_resume; do echo 1 > $e/enable && echo 'name ~ "target*" || name ~ "?:*"' > $e/filter; done && cd ../.. && echo 1 > tracing_on && cat trace_pipe
Change-Id: I4f43b7df426395009cc555509575e58967b5e040
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/scsi_pm.c | 69 +++++++++---------------------------------
 drivers/scsi/sd.c      |  6 ++++
 2 files changed, 20 insertions(+), 55 deletions(-)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 50b6bad4df79b..b5a858c29488a 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -66,71 +66,30 @@ static int scsi_dev_type_suspend(struct device *dev,
 	return err;
 }
 
-static int scsi_dev_type_resume(struct device *dev,
-		int (*cb)(struct device *, const struct dev_pm_ops *))
-{
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-	int err = 0;
-
-	err = cb(dev, pm);
-	scsi_device_resume(to_scsi_device(dev));
-	dev_dbg(dev, "scsi resume: %d\n", err);
-
-	if (err == 0) {
-		pm_runtime_disable(dev);
-		err = pm_runtime_set_active(dev);
-		pm_runtime_enable(dev);
-
-		/*
-		 * Forcibly set runtime PM status of request queue to "active"
-		 * to make sure we can again get requests from the queue
-		 * (see also blk_pm_peek_request()).
-		 *
-		 * The resume hook will correct runtime PM status of the disk.
-		 */
-		if (!err && scsi_is_sdev_device(dev)) {
-			struct scsi_device *sdev = to_scsi_device(dev);
-
-			blk_set_runtime_active(sdev->request_queue);
-		}
-	}
-
-	return err;
-}
-
 static int
 scsi_bus_suspend_common(struct device *dev,
 		int (*cb)(struct device *, const struct dev_pm_ops *))
 {
-	int err = 0;
+	if (!scsi_is_sdev_device(dev))
+		return 0;
 
-	if (scsi_is_sdev_device(dev)) {
-		/*
-		 * All the high-level SCSI drivers that implement runtime
-		 * PM treat runtime suspend, system suspend, and system
-		 * hibernate nearly identically. In all cases the requirements
-		 * for runtime suspension are stricter.
-		 */
-		if (pm_runtime_suspended(dev))
-			return 0;
-
-		err = scsi_dev_type_suspend(dev, cb);
-	}
-
-	return err;
+	return scsi_dev_type_suspend(dev, cb);
 }
 
 static int scsi_bus_resume_common(struct device *dev,
 		int (*cb)(struct device *, const struct dev_pm_ops *))
 {
-	if (scsi_is_sdev_device(dev)) {
-		scsi_dev_type_resume(dev, cb);
-	} else {
-		pm_runtime_disable(dev);
-		pm_runtime_set_active(dev);
-		pm_runtime_enable(dev);
-	}
-	return 0;
+	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+	int err;
+
+	if (!scsi_is_sdev_device(dev))
+		return 0;
+
+	err = cb(dev, pm);
+	scsi_device_resume(to_scsi_device(dev));
+	dev_dbg(dev, "scsi resume: %d\n", err);
+
+	return err;
 }
 
 static int scsi_bus_prepare(struct device *dev)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 29d14bb2d1423..e2586700c70c2 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3698,6 +3698,9 @@ static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)
 
 static int sd_suspend_system(struct device *dev)
 {
+	if (pm_runtime_suspended(dev))
+		return 0;
+
 	return sd_suspend_common(dev, true);
 }
 
@@ -3726,6 +3729,9 @@ static int sd_resume(struct device *dev)
 
 static int sd_resume_system(struct device *dev)
 {
+	if (pm_runtime_suspended(dev))
+		return 0;
+
 	return sd_resume(dev);
 }
 
-- 
GitLab


From b20e4220fa892009029b726af3ba42b6e15cadcf Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 27 Oct 2021 16:06:14 +0300
Subject: [PATCH 2015/4878] UPSTREAM: scsi: ufs: Let devices remain runtime
 suspended during system suspend

If the UFS Device WLUN is runtime suspended and is in the same power mode,
link state, and b_rpm_dev_flush_capable (BKOP or WB buffer flush etc)
state, then it can remain runtime suspended instead of being runtime
resumed and then system suspended.

The following patch has cleared the way for that to happen:

  scsi: core: pm: Only runtime resume if necessary

So amend the logic accordingly.

Note, the ufs-hisi driver uses different RPM and SPM, but it is made
explicit by a new parameter to suspend prepare.

Link: https://lore.kernel.org/r/20211027130614.406985-2-adrian.hunter@intel.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ddba1cf7a506b09b3583bcac2d64ec88bd4e3a96)
Bug: 209633402
Change-Id: I05bfc6091323dc5283763f1e192fce58dbda217a
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-hisi.c |  8 ++++++-
 drivers/scsi/ufs/ufshcd.c   | 45 ++++++++++++++++++++++++++++++++-----
 drivers/scsi/ufs/ufshcd.h   | 11 +++++++++
 3 files changed, 58 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 8c7e8d3217462..ab1a7ebd89b1c 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -396,6 +396,12 @@ out:
 	return ret;
 }
 
+static int ufs_hisi_suspend_prepare(struct device *dev)
+{
+	/* RPM and SPM are different. Refer ufs_hisi_suspend() */
+	return __ufshcd_suspend_prepare(dev, false);
+}
+
 static int ufs_hisi_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op,
 	enum ufs_notify_change_status status)
 {
@@ -578,7 +584,7 @@ static int ufs_hisi_remove(struct platform_device *pdev)
 static const struct dev_pm_ops ufs_hisi_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
 	SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
-	.prepare	 = ufshcd_suspend_prepare,
+	.prepare	 = ufs_hisi_suspend_prepare,
 	.complete	 = ufshcd_resume_complete,
 };
 
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 279ce0eb7a259..3c5b7ea481007 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9747,7 +9747,27 @@ void ufshcd_resume_complete(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(ufshcd_resume_complete);
 
-int ufshcd_suspend_prepare(struct device *dev)
+static bool ufshcd_rpm_ok_for_spm(struct ufs_hba *hba)
+{
+	struct device *dev = &hba->sdev_ufs_device->sdev_gendev;
+	enum ufs_dev_pwr_mode dev_pwr_mode;
+	enum uic_link_state link_state;
+	unsigned long flags;
+	bool res;
+
+	spin_lock_irqsave(&dev->power.lock, flags);
+	dev_pwr_mode = ufs_get_pm_lvl_to_dev_pwr_mode(hba->spm_lvl);
+	link_state = ufs_get_pm_lvl_to_link_pwr_state(hba->spm_lvl);
+	res = pm_runtime_suspended(dev) &&
+	      hba->curr_dev_pwr_mode == dev_pwr_mode &&
+	      hba->uic_link_state == link_state &&
+	      !hba->dev_info.b_rpm_dev_flush_capable;
+	spin_unlock_irqrestore(&dev->power.lock, flags);
+
+	return res;
+}
+
+int __ufshcd_suspend_prepare(struct device *dev, bool rpm_ok_for_spm)
 {
 	struct ufs_hba *hba = dev_get_drvdata(dev);
 	int ret;
@@ -9759,15 +9779,30 @@ int ufshcd_suspend_prepare(struct device *dev)
 	 * Refer ufshcd_resume_complete()
 	 */
 	if (hba->sdev_ufs_device) {
-		ret = ufshcd_rpm_get_sync(hba);
-		if (ret < 0 && ret != -EACCES) {
-			ufshcd_rpm_put(hba);
-			return ret;
+		/* Prevent runtime suspend */
+		ufshcd_rpm_get_noresume(hba);
+		/*
+		 * Check if already runtime suspended in same state as system
+		 * suspend would be.
+		 */
+		if (!rpm_ok_for_spm || !ufshcd_rpm_ok_for_spm(hba)) {
+			/* RPM state is not ok for SPM, so runtime resume */
+			ret = ufshcd_rpm_resume(hba);
+			if (ret < 0 && ret != -EACCES) {
+				ufshcd_rpm_put(hba);
+				return ret;
+			}
 		}
 		hba->complete_put = true;
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(__ufshcd_suspend_prepare);
+
+int ufshcd_suspend_prepare(struct device *dev)
+{
+	return __ufshcd_suspend_prepare(dev, true);
+}
 EXPORT_SYMBOL_GPL(ufshcd_suspend_prepare);
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index e366f618c64e3..dd03d1837f959 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1256,6 +1256,7 @@ int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
 
 int ufshcd_wb_toggle(struct ufs_hba *hba, bool enable);
 int ufshcd_suspend_prepare(struct device *dev);
+int __ufshcd_suspend_prepare(struct device *dev, bool rpm_ok_for_spm);
 void ufshcd_resume_complete(struct device *dev);
 
 /* Wrapper functions for safely calling variant operations */
@@ -1465,6 +1466,16 @@ static inline int ufshcd_rpm_put_sync(struct ufs_hba *hba)
 	return pm_runtime_put_sync(&hba->sdev_ufs_device->sdev_gendev);
 }
 
+static inline void ufshcd_rpm_get_noresume(struct ufs_hba *hba)
+{
+	pm_runtime_get_noresume(&hba->sdev_ufs_device->sdev_gendev);
+}
+
+static inline int ufshcd_rpm_resume(struct ufs_hba *hba)
+{
+	return pm_runtime_resume(&hba->sdev_ufs_device->sdev_gendev);
+}
+
 static inline int ufshcd_rpm_put(struct ufs_hba *hba)
 {
 	return pm_runtime_put(&hba->sdev_ufs_device->sdev_gendev);
-- 
GitLab


From bb860573a4d7ff00774f7f2264cf3f350e8c2d36 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 29 Nov 2021 11:46:09 -0800
Subject: [PATCH 2016/4878] UPSTREAM: scsi: Remove superfluous #include
 <linux/async.h> directives

Remove this include directive from code that does not use any functionality
from kernel/async.c.

Link: https://lore.kernel.org/r/20211129194609.3466071-13-bvanassche@acm.org
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit db33028647a3eca9e3e6fccf170d75f3b56a466c)
Bug: 209633402
Change-Id: I3346246b54b07e0f201af72c5faa1ffbbdcbe810
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/libsas/sas_discover.c | 1 -
 drivers/scsi/scsi.c                | 1 -
 drivers/scsi/scsi_pm.c             | 1 -
 drivers/scsi/scsi_priv.h           | 1 -
 drivers/scsi/sd.c                  | 1 -
 drivers/scsi/ufs/ufshpb.c          | 1 -
 6 files changed, 6 deletions(-)

diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index 161c9b387da76..2661a3727e682 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -8,7 +8,6 @@
 
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
-#include <linux/async.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_eh.h>
 #include "sas_internal.h"
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index be399e0fd0385..49702b0dcee3a 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -55,7 +55,6 @@
 #include <linux/notifier.h>
 #include <linux/cpu.h>
 #include <linux/mutex.h>
-#include <linux/async.h>
 #include <asm/unaligned.h>
 
 #include <scsi/scsi.h>
diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index b5a858c29488a..0e841e8761c59 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -8,7 +8,6 @@
 
 #include <linux/pm_runtime.h>
 #include <linux/export.h>
-#include <linux/async.h>
 #include <linux/blk-pm.h>
 
 #include <scsi/scsi.h>
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 614cb4b7aba43..7695dfe1a15cf 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -3,7 +3,6 @@
 #define _SCSI_PRIV_H
 
 #include <linux/device.h>
-#include <linux/async.h>
 #include <scsi/scsi_device.h>
 
 struct request_queue;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e2586700c70c2..9de0bd97c556e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -50,7 +50,6 @@
 #include <linux/delay.h>
 #include <linux/mutex.h>
 #include <linux/string_helpers.h>
-#include <linux/async.h>
 #include <linux/slab.h>
 #include <linux/sed-opal.h>
 #include <linux/pm_runtime.h>
diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index ac8fb1cf07955..5a67a840314f6 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -10,7 +10,6 @@
  */
 
 #include <asm/unaligned.h>
-#include <linux/async.h>
 
 #include "ufshcd.h"
 #include "ufshpb.h"
-- 
GitLab


From 87b23d3a8f29c9c1ab0621bc0a5d3433d5f40d6d Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 21 Oct 2021 13:50:42 +0100
Subject: [PATCH 2017/4878] BACKPORT: FROMGIT: KVM: arm64: Reorder vcpu flag
 definitions

The vcpu arch flags are in an interesting, semi random order.
As I have made the mistake of reusing a flag once, let's rework
this in an order that I find a bit less confusing.

Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 892fd259cbf6b1dc16116611b84f7f164a11fe2e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
[willdeacon@: Remove KVM_GUESTDBG_VALID_MASK definition from guest.c]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I79f0f8de29bb111d95a923a744055d69e0dbad60
---
 arch/arm64/include/asm/kvm_host.h | 19 ++++++++++++-------
 arch/arm64/kvm/guest.c            |  5 -----
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 49abcb019cc61..a875e0a658f01 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -429,9 +429,12 @@ struct kvm_vcpu_arch {
 #define KVM_ARM64_VCPU_SVE_FINALIZED	(1 << 6) /* SVE config completed */
 #define KVM_ARM64_GUEST_HAS_PTRAUTH	(1 << 7) /* PTRAUTH exposed to guest */
 #define KVM_ARM64_PENDING_EXCEPTION	(1 << 8) /* Exception pending */
+/*
+ * Overlaps with KVM_ARM64_EXCEPT_MASK on purpose so that it can't be
+ * set together with an exception...
+ */
+#define KVM_ARM64_INCREMENT_PC		(1 << 9) /* Increment PC */
 #define KVM_ARM64_EXCEPT_MASK		(7 << 9) /* Target EL/MODE */
-#define KVM_ARM64_DEBUG_STATE_SAVE_SPE	(1 << 12) /* Save SPE context if active  */
-#define KVM_ARM64_DEBUG_STATE_SAVE_TRBE	(1 << 13) /* Save TRBE context if active  */
 
 /*
  * When KVM_ARM64_PENDING_EXCEPTION is set, KVM_ARM64_EXCEPT_MASK can
@@ -450,11 +453,13 @@ struct kvm_vcpu_arch {
 #define KVM_ARM64_EXCEPT_AA64_EL1	(0 << 11)
 #define KVM_ARM64_EXCEPT_AA64_EL2	(1 << 11)
 
-/*
- * Overlaps with KVM_ARM64_EXCEPT_MASK on purpose so that it can't be
- * set together with an exception...
- */
-#define KVM_ARM64_INCREMENT_PC		(1 << 9) /* Increment PC */
+#define KVM_ARM64_DEBUG_STATE_SAVE_SPE	(1 << 12) /* Save SPE context if active  */
+#define KVM_ARM64_DEBUG_STATE_SAVE_TRBE	(1 << 13) /* Save TRBE context if active  */
+
+#define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
+				 KVM_GUESTDBG_USE_SW_BP | \
+				 KVM_GUESTDBG_USE_HW | \
+				 KVM_GUESTDBG_SINGLESTEP)
 
 #define vcpu_has_sve(vcpu) (system_supports_sve() &&			\
 			    ((vcpu)->arch.flags & KVM_ARM64_GUEST_HAS_SVE))
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index b929bbfc4aac2..d709f47cc046b 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -884,11 +884,6 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 	return -EINVAL;
 }
 
-#define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE |    \
-			    KVM_GUESTDBG_USE_SW_BP | \
-			    KVM_GUESTDBG_USE_HW | \
-			    KVM_GUESTDBG_SINGLESTEP)
-
 /**
  * kvm_arch_vcpu_ioctl_set_guest_debug - set up guest debugging
  * @kvm:	pointer to the KVM struct
-- 
GitLab


From 0e5281f03cb8ed01c3208f6d51b25e3e3375f9e8 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 27 Oct 2021 11:18:00 +0100
Subject: [PATCH 2018/4878] FROMGIT: KVM: arm64: Get rid of host SVE
 tracking/saving

The SVE host tracking in KVM is pretty involved. It relies on a
set of flags tracking the ownership of the SVE register, as well
as that of the EL0 access.

It is also pretty scary: __hyp_sve_save_host() computes
a thread_struct pointer and obtains a sve_state which gets directly
accessed without further ado, even on nVHE. How can this even work?

The answer to that is that it doesn't, and that this is mostly dead
code. Closer examination shows that on executing a syscall, userspace
loses its SVE state entirely. This is part of the ABI. Another
thing to notice is that although the kernel provides helpers such as
kernel_neon_begin()/end(), they only deal with the FP/NEON state,
and not SVE.

Given that you can only execute a guest as the result of a syscall,
and that the kernel cannot use SVE by itself, it becomes pretty
obvious that there is never any host SVE state to save, and that
this code is only there to increase confusion.

Get rid of the TIF_SVE tracking and host save infrastructure altogether.

Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 8383741ab2e773a992f1f0f8acdca5e7a4687c49
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I8f26c83393bac40056ce849a1082b7516130cb0a
---
 arch/arm64/include/asm/kvm_host.h       |  1 -
 arch/arm64/kvm/fpsimd.c                 | 20 +++++-------------
 arch/arm64/kvm/hyp/include/hyp/switch.h | 27 +++----------------------
 3 files changed, 8 insertions(+), 40 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a875e0a658f01..a723405c891d5 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -423,7 +423,6 @@ struct kvm_vcpu_arch {
 #define KVM_ARM64_DEBUG_DIRTY		(1 << 0)
 #define KVM_ARM64_FP_ENABLED		(1 << 1) /* guest FP regs loaded */
 #define KVM_ARM64_FP_HOST		(1 << 2) /* host FP regs loaded */
-#define KVM_ARM64_HOST_SVE_IN_USE	(1 << 3) /* backup for host TIF_SVE */
 #define KVM_ARM64_HOST_SVE_ENABLED	(1 << 4) /* SVE enabled for EL0 */
 #define KVM_ARM64_GUEST_HAS_SVE		(1 << 5) /* SVE exposed to guest */
 #define KVM_ARM64_VCPU_SVE_FINALIZED	(1 << 6) /* SVE config completed */
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index 5621020b28de9..2d15e1d6e2141 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -66,22 +66,15 @@ error:
  *
  * Here, we just set the correct metadata to indicate that the FPSIMD
  * state in the cpu regs (if any) belongs to current on the host.
- *
- * TIF_SVE is backed up here, since it may get clobbered with guest state.
- * This flag is restored by kvm_arch_vcpu_put_fp(vcpu).
  */
 void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu)
 {
 	BUG_ON(!current->mm);
+	BUG_ON(test_thread_flag(TIF_SVE));
 
-	vcpu->arch.flags &= ~(KVM_ARM64_FP_ENABLED |
-			      KVM_ARM64_HOST_SVE_IN_USE |
-			      KVM_ARM64_HOST_SVE_ENABLED);
+	vcpu->arch.flags &= ~KVM_ARM64_FP_ENABLED;
 	vcpu->arch.flags |= KVM_ARM64_FP_HOST;
 
-	if (test_thread_flag(TIF_SVE))
-		vcpu->arch.flags |= KVM_ARM64_HOST_SVE_IN_USE;
-
 	if (read_sysreg(cpacr_el1) & CPACR_EL1_ZEN_EL0EN)
 		vcpu->arch.flags |= KVM_ARM64_HOST_SVE_ENABLED;
 }
@@ -115,13 +108,11 @@ void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu)
 void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu)
 {
 	unsigned long flags;
-	bool host_has_sve = system_supports_sve();
-	bool guest_has_sve = vcpu_has_sve(vcpu);
 
 	local_irq_save(flags);
 
 	if (vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
-		if (guest_has_sve) {
+		if (vcpu_has_sve(vcpu)) {
 			__vcpu_sys_reg(vcpu, ZCR_EL1) = read_sysreg_el1(SYS_ZCR);
 
 			/* Restore the VL that was saved when bound to the CPU */
@@ -131,7 +122,7 @@ void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu)
 		}
 
 		fpsimd_save_and_flush_cpu_state();
-	} else if (has_vhe() && host_has_sve) {
+	} else if (has_vhe() && system_supports_sve()) {
 		/*
 		 * The FPSIMD/SVE state in the CPU has not been touched, and we
 		 * have SVE (and VHE): CPACR_EL1 (alias CPTR_EL2) has been
@@ -145,8 +136,7 @@ void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu)
 			sysreg_clear_set(CPACR_EL1, CPACR_EL1_ZEN_EL0EN, 0);
 	}
 
-	update_thread_flag(TIF_SVE,
-			   vcpu->arch.flags & KVM_ARM64_HOST_SVE_IN_USE);
+	update_thread_flag(TIF_SVE, 0);
 
 	local_irq_restore(flags);
 }
diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 0eb4589e9b24d..5fd4fad5a5a3a 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -139,16 +139,6 @@ static inline bool __populate_fault_info(struct kvm_vcpu *vcpu)
 	return __get_fault_info(vcpu->arch.fault.esr_el2, &vcpu->arch.fault);
 }
 
-static inline void __hyp_sve_save_host(struct kvm_vcpu *vcpu)
-{
-	struct thread_struct *thread;
-
-	thread = container_of(vcpu->arch.host_fpsimd_state, struct thread_struct,
-			      uw.fpsimd_state);
-
-	__sve_save_state(sve_pffr(thread), &vcpu->arch.host_fpsimd_state->fpsr);
-}
-
 static inline void __hyp_sve_restore_guest(struct kvm_vcpu *vcpu)
 {
 	sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
@@ -165,21 +155,14 @@ static inline void __hyp_sve_restore_guest(struct kvm_vcpu *vcpu)
  */
 static bool kvm_hyp_handle_fpsimd(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
-	bool sve_guest, sve_host;
+	bool sve_guest;
 	u8 esr_ec;
 	u64 reg;
 
 	if (!system_supports_fpsimd())
 		return false;
 
-	if (system_supports_sve()) {
-		sve_guest = vcpu_has_sve(vcpu);
-		sve_host = vcpu->arch.flags & KVM_ARM64_HOST_SVE_IN_USE;
-	} else {
-		sve_guest = false;
-		sve_host = false;
-	}
-
+	sve_guest = vcpu_has_sve(vcpu);
 	esr_ec = kvm_vcpu_trap_get_class(vcpu);
 
 	/* Don't handle SVE traps for non-SVE vcpus here: */
@@ -203,11 +186,7 @@ static bool kvm_hyp_handle_fpsimd(struct kvm_vcpu *vcpu, u64 *exit_code)
 	isb();
 
 	if (vcpu->arch.flags & KVM_ARM64_FP_HOST) {
-		if (sve_host)
-			__hyp_sve_save_host(vcpu);
-		else
-			__fpsimd_save_state(vcpu->arch.host_fpsimd_state);
-
+		__fpsimd_save_state(vcpu->arch.host_fpsimd_state);
 		vcpu->arch.flags &= ~KVM_ARM64_FP_HOST;
 	}
 
-- 
GitLab


From f32b601e3c814b25ef7c44d9d3b48b69cab39eda Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 22 Nov 2021 15:59:23 +0000
Subject: [PATCH 2019/4878] BACKPORT: FROMGIT: KVM: arm64: Remove unused
 __sve_save_state

Now that we don't have any users left for __sve_save_state, remove
it altogether. Should we ever need to save the SVE state from the
hypervisor again, we can always re-introduce it.

Suggested-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit e66425fc9ba33e9716d6e7c6bc78bb62f981d4df
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
[willdeacon@: Resolved conflict due to different __sve_save_state code]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie6a95dfad3e510361730713fa92a61fcf9f22a7e
---
 arch/arm64/include/asm/kvm_hyp.h | 1 -
 arch/arm64/kvm/hyp/fpsimd.S      | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 67579d7fd9df7..c8d51e2db879b 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -90,7 +90,6 @@ void __debug_restore_host_buffers_nvhe(struct kvm_vcpu *vcpu);
 
 void __fpsimd_save_state(struct user_fpsimd_state *fp_regs);
 void __fpsimd_restore_state(struct user_fpsimd_state *fp_regs);
-void __sve_save_state(void *sve_pffr, u32 *fpsr);
 void __sve_restore_state(void *sve_pffr, u32 *fpsr);
 
 #ifndef __KVM_NVHE_HYPERVISOR__
diff --git a/arch/arm64/kvm/hyp/fpsimd.S b/arch/arm64/kvm/hyp/fpsimd.S
index 3c635929771a8..7b789ac473151 100644
--- a/arch/arm64/kvm/hyp/fpsimd.S
+++ b/arch/arm64/kvm/hyp/fpsimd.S
@@ -24,8 +24,3 @@ SYM_FUNC_START(__sve_restore_state)
 	__sve_load 0, x1, 2
 	ret
 SYM_FUNC_END(__sve_restore_state)
-
-SYM_FUNC_START(__sve_save_state)
-	sve_save 0, x1, 2
-	ret
-SYM_FUNC_END(__sve_save_state)
-- 
GitLab


From 1cc41a852819f3cf3819d0a734d091049228bf96 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 21 Oct 2021 14:10:35 +0100
Subject: [PATCH 2020/4878] FROMGIT: KVM: arm64: Introduce flag shadowing
 TIF_FOREIGN_FPSTATE

We currently have to maintain a mapping the thread_info structure
at EL2 in order to be able to check the TIF_FOREIGN_FPSTATE flag.

In order to eventually get rid of this, start with a vcpu flag that
shadows the thread flag on each entry into the hypervisor.

Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit af9a0e21d817f40595aa629de32d3bd96582abef
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I3a59991de7eca3a08fc3de9ddb11213d889165b5
---
 arch/arm64/include/asm/kvm_host.h       | 2 ++
 arch/arm64/kvm/arm.c                    | 1 +
 arch/arm64/kvm/fpsimd.c                 | 8 ++++++++
 arch/arm64/kvm/hyp/include/hyp/switch.h | 2 +-
 4 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a723405c891d5..0772aa31657bb 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -454,6 +454,7 @@ struct kvm_vcpu_arch {
 
 #define KVM_ARM64_DEBUG_STATE_SAVE_SPE	(1 << 12) /* Save SPE context if active  */
 #define KVM_ARM64_DEBUG_STATE_SAVE_TRBE	(1 << 13) /* Save TRBE context if active  */
+#define KVM_ARM64_FP_FOREIGN_FPSTATE	(1 << 14)
 
 #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
 				 KVM_GUESTDBG_USE_SW_BP | \
@@ -759,6 +760,7 @@ long kvm_vm_ioctl_mte_copy_tags(struct kvm *kvm,
 /* Guest/host FPSIMD coordination helpers */
 int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu);
+void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu);
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 5183e5cf7e0ab..49aed0829fda5 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -839,6 +839,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 		}
 
 		kvm_arm_setup_debug(vcpu);
+		kvm_arch_vcpu_ctxflush_fp(vcpu);
 
 		/**************************************************************
 		 * Enter the guest
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index 2d15e1d6e2141..a18b9c1744d58 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -79,6 +79,14 @@ void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu)
 		vcpu->arch.flags |= KVM_ARM64_HOST_SVE_ENABLED;
 }
 
+void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu)
+{
+	if (test_thread_flag(TIF_FOREIGN_FPSTATE))
+		vcpu->arch.flags |= KVM_ARM64_FP_FOREIGN_FPSTATE;
+	else
+		vcpu->arch.flags &= ~KVM_ARM64_FP_FOREIGN_FPSTATE;
+}
+
 /*
  * If the guest FPSIMD state was loaded, update the host's context
  * tracking data mark the CPU FPSIMD regs as dirty and belonging to vcpu
diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 5fd4fad5a5a3a..da64daa6f9077 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -45,7 +45,7 @@ static inline bool update_fp_enabled(struct kvm_vcpu *vcpu)
 	 * trap the accesses.
 	 */
 	if (!system_supports_fpsimd() ||
-	    vcpu->arch.host_thread_info->flags & _TIF_FOREIGN_FPSTATE)
+	    vcpu->arch.flags & KVM_ARM64_FP_FOREIGN_FPSTATE)
 		vcpu->arch.flags &= ~(KVM_ARM64_FP_ENABLED |
 				      KVM_ARM64_FP_HOST);
 
-- 
GitLab


From 4df39f4e31c5965baebf766645cf9b5508a70232 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 21 Oct 2021 14:18:00 +0100
Subject: [PATCH 2021/4878] FROMGIT: KVM: arm64: Stop mapping current
 thread_info at EL2

Now that we can track an equivalent of TIF_FOREIGN_FPSTATE, drop
the mapping of current's thread_info at EL2.

Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit bee14bca735a6f897a6ec3e42f3e5d2d8966e87e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I8d113a0f7551302a03446f9cfac1248b0a975184
---
 arch/arm64/include/asm/kvm_host.h       |  2 --
 arch/arm64/kvm/fpsimd.c                 | 12 +-----------
 arch/arm64/kvm/hyp/include/hyp/switch.h |  1 -
 arch/arm64/kvm/hyp/nvhe/switch.c        |  1 -
 arch/arm64/kvm/hyp/vhe/switch.c         |  1 -
 5 files changed, 1 insertion(+), 16 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 0772aa31657bb..e886be3c31fb1 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -26,7 +26,6 @@
 #include <asm/fpsimd.h>
 #include <asm/kvm.h>
 #include <asm/kvm_asm.h>
-#include <asm/thread_info.h>
 
 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 
@@ -333,7 +332,6 @@ struct kvm_vcpu_arch {
 	struct kvm_guest_debug_arch vcpu_debug_state;
 	struct kvm_guest_debug_arch external_debug_state;
 
-	struct thread_info *host_thread_info;	/* hyp VA */
 	struct user_fpsimd_state *host_fpsimd_state;	/* hyp VA */
 
 	struct {
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index a18b9c1744d58..b5b59b9f2eff6 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -7,7 +7,6 @@
  */
 #include <linux/irqflags.h>
 #include <linux/sched.h>
-#include <linux/thread_info.h>
 #include <linux/kvm_host.h>
 #include <asm/fpsimd.h>
 #include <asm/kvm_asm.h>
@@ -28,17 +27,9 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 {
 	int ret;
 
-	struct thread_info *ti = &current->thread_info;
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
-	/*
-	 * Make sure the host task thread flags and fpsimd state are
-	 * visible to hyp:
-	 */
-	ret = create_hyp_mappings(ti, ti + 1, PAGE_HYP);
-	if (ret)
-		goto error;
-
+	/* Make sure the host task fpsimd state is visible to hyp: */
 	ret = create_hyp_mappings(fpsimd, fpsimd + 1, PAGE_HYP);
 	if (ret)
 		goto error;
@@ -54,7 +45,6 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 			goto error;
 	}
 
-	vcpu->arch.host_thread_info = kern_hyp_va(ti);
 	vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
 error:
 	return ret;
diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index da64daa6f9077..c3463dda749c6 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -29,7 +29,6 @@
 #include <asm/fpsimd.h>
 #include <asm/debug-monitors.h>
 #include <asm/processor.h>
-#include <asm/thread_info.h>
 
 extern struct exception_table_entry __start___kvm_ex_table;
 extern struct exception_table_entry __stop___kvm_ex_table;
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index d13115a124341..6410d21d86957 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -25,7 +25,6 @@
 #include <asm/fpsimd.h>
 #include <asm/debug-monitors.h>
 #include <asm/processor.h>
-#include <asm/thread_info.h>
 
 #include <nvhe/fixed_config.h>
 #include <nvhe/mem_protect.h>
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index fbb26b93c3477..11d053fdd604b 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -24,7 +24,6 @@
 #include <asm/fpsimd.h>
 #include <asm/debug-monitors.h>
 #include <asm/processor.h>
-#include <asm/thread_info.h>
 
 /* VHE specific context */
 DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data);
-- 
GitLab


From c29a44a1b3c3b96c74708b65a3b09cd71a4bba5e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 21 Oct 2021 15:33:22 +0100
Subject: [PATCH 2022/4878] FROMGIT: arm64/fpsimd: Document the use of
 TIF_FOREIGN_FPSTATE by KVM

The bit of documentation that talks about TIF_FOREIGN_FPSTATE
does not mention the ungodly tricks that KVM plays with this flag.

Try and document this for the posterity.

Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 31aa126de88e1e9f562f708a9b0ec5917ba97dce
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iec0b06e35ad286d6bcea15745f2a1b160ff967cc
---
 arch/arm64/kernel/fpsimd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 5335a6bd1a0d4..81183a38d6767 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -78,7 +78,11 @@
  * indicate whether or not the userland FPSIMD state of the current task is
  * present in the registers. The flag is set unless the FPSIMD registers of this
  * CPU currently contain the most recent userland FPSIMD state of the current
- * task.
+ * task. If the task is behaving as a VMM, then this is will be managed by
+ * KVM which will clear it to indicate that the vcpu FPSIMD state is currently
+ * loaded on the CPU, allowing the state to be saved if a FPSIMD-aware
+ * softirq kicks in. Upon vcpu_put(), KVM will save the vcpu FP state and
+ * flag the register state as invalid.
  *
  * In order to allow softirq handlers to use FPSIMD, kernel_neon_begin() may
  * save the task's FPSIMD context back to task_struct from softirq context.
-- 
GitLab


From b09086c82eb5c7b1e46a106a303defe259c9cc7e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 14 Oct 2021 10:24:48 +0100
Subject: [PATCH 2023/4878] BACKPORT: FROMGIT: KVM: arm64: Move SVE state
 mapping at HYP to finalize-time

We currently map the SVE state to HYP on detection of a PID change.
Although this matches what we do for FPSIMD, this is pretty pointless
for SVE, as the buffer is per-vcpu and has nothing to do with the
thread that is being run.

Move the mapping of the SVE state to finalize-time, which is where
we allocate the state memory, and thus the most logical place to
do this.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit bff01a61af3c8b9756940c2fb0be2af570cdb5bf
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
[willdeacon@: Fixed context conflict due to removal of EL2 thread_info mapping]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I672f411b50a827a45d30ac5fb154c7f1a5102d7d
---
 arch/arm64/kvm/fpsimd.c | 11 -----------
 arch/arm64/kvm/reset.c  | 11 ++++++++++-
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index b5b59b9f2eff6..ee3291de04be5 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -34,17 +34,6 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 	if (ret)
 		goto error;
 
-	if (vcpu->arch.sve_state) {
-		void *sve_end;
-
-		sve_end = vcpu->arch.sve_state + vcpu_sve_state_size(vcpu);
-
-		ret = create_hyp_mappings(vcpu->arch.sve_state, sve_end,
-					  PAGE_HYP);
-		if (ret)
-			goto error;
-	}
-
 	vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
 error:
 	return ret;
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index acad22ebac12a..c2a5a3c5cec79 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -94,6 +94,8 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 {
 	void *buf;
 	unsigned int vl;
+	size_t reg_sz;
+	int ret;
 
 	vl = vcpu->arch.sve_max_vl;
 
@@ -106,10 +108,17 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 		    vl > SVE_VL_ARCH_MAX))
 		return -EIO;
 
-	buf = kzalloc(SVE_SIG_REGS_SIZE(sve_vq_from_vl(vl)), GFP_KERNEL_ACCOUNT);
+	reg_sz = vcpu_sve_state_size(vcpu);
+	buf = kzalloc(reg_sz, GFP_KERNEL_ACCOUNT);
 	if (!buf)
 		return -ENOMEM;
 
+	ret = create_hyp_mappings(buf, buf + reg_sz, PAGE_HYP);
+	if (ret) {
+		kfree(buf);
+		return ret;
+	}
+	
 	vcpu->arch.sve_state = buf;
 	vcpu->arch.flags |= KVM_ARM64_VCPU_SVE_FINALIZED;
 	return 0;
-- 
GitLab


From b01bdd792e5692b1ca692c58a2584ee733f1b65e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 14 Oct 2021 11:30:42 +0100
Subject: [PATCH 2024/4878] FROMGIT: KVM: arm64: Move
 kvm_arch_vcpu_run_pid_change() out of line

Having kvm_arch_vcpu_run_pid_change() inline doesn't bring anything
to the table. Move it next to kvm_vcpu_first_run_init(), which will
be convenient for what is next to come.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 052f064d42b7bac87cbcd140710f262c5f1c3c8b
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I78e24d8bbfa44a4ebd96f6e1f1441079a627476a
---
 arch/arm64/include/asm/kvm_host.h | 7 +------
 arch/arm64/kvm/arm.c              | 5 +++++
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index e886be3c31fb1..7f008ecf91d35 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -771,12 +771,7 @@ static inline bool kvm_pmu_counter_deferred(struct perf_event_attr *attr)
 void kvm_arch_vcpu_load_debug_state_flags(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_put_debug_state_flags(struct kvm_vcpu *vcpu);
 
-#ifdef CONFIG_KVM /* Avoid conflicts with core headers if CONFIG_KVM=n */
-static inline int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
-{
-	return kvm_arch_vcpu_run_map_fp(vcpu);
-}
-
+#ifdef CONFIG_KVM
 void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr);
 void kvm_clr_pmu_events(u32 clr);
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 49aed0829fda5..2d4b6fe128f3b 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -589,6 +589,11 @@ static void update_vmid(struct kvm_vmid *vmid)
 	spin_unlock(&kvm_vmid_lock);
 }
 
+int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
+{
+	return kvm_arch_vcpu_run_map_fp(vcpu);
+}
+
 static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
 {
 	struct kvm *kvm = vcpu->kvm;
-- 
GitLab


From 3b0c662197c837239a1f028e77ca319b9e89db46 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 14 Oct 2021 12:18:48 +0100
Subject: [PATCH 2025/4878] FROMGIT: KVM: arm64: Restructure the point where
 has_run_once is advertised

Restructure kvm_vcpu_first_run_init() to set the has_run_once
flag after having completed all the "run once" activities.

This includes moving the flip of the userspace irqchip static key
to a point where nothing can fail.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 1408e73d21feffe77680acd4da611295db0dfcd8
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I034562031b0ad89815d2623da1fff8930b964694
---
 arch/arm64/kvm/arm.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2d4b6fe128f3b..d934bf9686f9e 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -605,8 +605,6 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
 	if (!kvm_arm_vcpu_is_finalized(vcpu))
 		return -EPERM;
 
-	vcpu->arch.has_run_once = true;
-
 	kvm_arm_vcpu_init_debug(vcpu);
 
 	if (likely(irqchip_in_kernel(kvm))) {
@@ -617,12 +615,6 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
 		ret = kvm_vgic_map_resources(kvm);
 		if (ret)
 			return ret;
-	} else {
-		/*
-		 * Tell the rest of the code that there are userspace irqchip
-		 * VMs in the wild.
-		 */
-		static_branch_inc(&userspace_irqchip_in_use);
 	}
 
 	ret = kvm_timer_enable(vcpu);
@@ -630,6 +622,18 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
 		return ret;
 
 	ret = kvm_arm_pmu_v3_enable(vcpu);
+	if (ret)
+		return ret;
+
+	if (!irqchip_in_kernel(kvm)) {
+		/*
+		 * Tell the rest of the code that there are userspace irqchip
+		 * VMs in the wild.
+		 */
+		static_branch_inc(&userspace_irqchip_in_use);
+	}
+
+	vcpu->arch.has_run_once = true;
 
 	/*
 	 * Initialize traps for protected VMs.
-- 
GitLab


From a88c9de863cb29411b6676ecb28bf18582befaed Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 14 Oct 2021 11:42:38 +0100
Subject: [PATCH 2026/4878] FROMGIT: KVM: arm64: Merge
 kvm_arch_vcpu_run_pid_change() and kvm_vcpu_first_run_init()

The kvm_arch_vcpu_run_pid_change() helper gets called on each PID
change. The kvm_vcpu_first_run_init() helper gets run on the...
first run(!) of a vcpu.

As it turns out, the first run of a vcpu also triggers a PID change
event (vcpu->pid is initially NULL).

Use this property to merge these two helpers and get rid of another
arm64-specific oddity.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit b5aa368abfbf4c0e041c792e3340955554eff97e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie65247a0f1fb3bef49c2cdc1d6226836071554f0
---
 arch/arm64/kvm/arm.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index d934bf9686f9e..4832b0f1a5815 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -589,22 +589,34 @@ static void update_vmid(struct kvm_vmid *vmid)
 	spin_unlock(&kvm_vmid_lock);
 }
 
-int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
+static int kvm_vcpu_initialized(struct kvm_vcpu *vcpu)
 {
-	return kvm_arch_vcpu_run_map_fp(vcpu);
+	return vcpu->arch.target >= 0;
 }
 
-static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
+/*
+ * Handle both the initialisation that is being done when the vcpu is
+ * run for the first time, as well as the updates that must be
+ * performed each time we get a new thread dealing with this vcpu.
+ */
+int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 {
 	struct kvm *kvm = vcpu->kvm;
-	int ret = 0;
+	int ret;
 
-	if (likely(vcpu->arch.has_run_once))
-		return 0;
+	if (!kvm_vcpu_initialized(vcpu))
+		return -ENOEXEC;
 
 	if (!kvm_arm_vcpu_is_finalized(vcpu))
 		return -EPERM;
 
+	ret = kvm_arch_vcpu_run_map_fp(vcpu);
+	if (ret)
+		return ret;
+
+	if (likely(vcpu->arch.has_run_once))
+		return 0;
+
 	kvm_arm_vcpu_init_debug(vcpu);
 
 	if (likely(irqchip_in_kernel(kvm))) {
@@ -693,11 +705,6 @@ static void vcpu_req_sleep(struct kvm_vcpu *vcpu)
 	smp_rmb();
 }
 
-static int kvm_vcpu_initialized(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.target >= 0;
-}
-
 static void check_vcpu_requests(struct kvm_vcpu *vcpu)
 {
 	if (kvm_request_pending(vcpu)) {
@@ -754,13 +761,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 	struct kvm_run *run = vcpu->run;
 	int ret;
 
-	if (unlikely(!kvm_vcpu_initialized(vcpu)))
-		return -ENOEXEC;
-
-	ret = kvm_vcpu_first_run_init(vcpu);
-	if (ret)
-		return ret;
-
 	if (run->exit_reason == KVM_EXIT_MMIO) {
 		ret = kvm_handle_mmio_return(vcpu);
 		if (ret)
-- 
GitLab


From f74a77dd09fd7172aa4b974c1feb8fed0f7cb76c Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 14 Oct 2021 12:13:06 +0100
Subject: [PATCH 2027/4878] FROMGIT: KVM: arm64: Drop vcpu->arch.has_run_once
 for vcpu->pid

With the transition to kvm_arch_vcpu_run_pid_change() to handle
the "run once" activities, it becomes obvious that has_run_once
is now an exact shadow of vcpu->pid.

Replace vcpu->arch.has_run_once with a new vcpu_has_run_once()
helper that directly checks for vcpu->pid, and get rid of the
now unused field.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit cc5705fb1bf119ebb693d594f0157e0dd418590e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iaecd0c5440ae929775fd43b7e9cfe71168b45911
---
 arch/arm64/include/asm/kvm_host.h | 5 ++---
 arch/arm64/kvm/arm.c              | 8 +++-----
 arch/arm64/kvm/vgic/vgic-init.c   | 2 +-
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 7f008ecf91d35..9380ce7cb4ace 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -377,9 +377,6 @@ struct kvm_vcpu_arch {
 	int target;
 	DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);
 
-	/* Detect first run of a vcpu */
-	bool has_run_once;
-
 	/* Virtual SError ESR to restore when HCR_EL2.VSE is set */
 	u64 vsesr_el2;
 
@@ -627,6 +624,8 @@ int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 void kvm_arm_halt_guest(struct kvm *kvm);
 void kvm_arm_resume_guest(struct kvm *kvm);
 
+#define vcpu_has_run_once(vcpu)	!!rcu_access_pointer((vcpu)->pid)
+
 #ifndef __KVM_NVHE_HYPERVISOR__
 #define kvm_call_hyp_nvhe(f, ...)						\
 	({								\
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 4832b0f1a5815..24f26da55e1c0 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -356,7 +356,7 @@ void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
 
 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
 {
-	if (vcpu->arch.has_run_once && unlikely(!irqchip_in_kernel(vcpu->kvm)))
+	if (vcpu_has_run_once(vcpu) && unlikely(!irqchip_in_kernel(vcpu->kvm)))
 		static_branch_dec(&userspace_irqchip_in_use);
 
 	kvm_mmu_free_memory_cache(&vcpu->arch.mmu_page_cache);
@@ -614,7 +614,7 @@ int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 	if (ret)
 		return ret;
 
-	if (likely(vcpu->arch.has_run_once))
+	if (likely(vcpu_has_run_once(vcpu)))
 		return 0;
 
 	kvm_arm_vcpu_init_debug(vcpu);
@@ -645,8 +645,6 @@ int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 		static_branch_inc(&userspace_irqchip_in_use);
 	}
 
-	vcpu->arch.has_run_once = true;
-
 	/*
 	 * Initialize traps for protected VMs.
 	 * NOTE: Move to run in EL2 directly, rather than via a hypercall, once
@@ -1123,7 +1121,7 @@ static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu,
 	 * need to invalidate the I-cache though, as FWB does *not*
 	 * imply CTR_EL0.DIC.
 	 */
-	if (vcpu->arch.has_run_once) {
+	if (vcpu_has_run_once(vcpu)) {
 		if (!cpus_have_final_cap(ARM64_HAS_STAGE2_FWB))
 			stage2_unmap_vm(vcpu->kvm);
 		else
diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c
index 0a06d06489709..ce2b42c38e62a 100644
--- a/arch/arm64/kvm/vgic/vgic-init.c
+++ b/arch/arm64/kvm/vgic/vgic-init.c
@@ -91,7 +91,7 @@ int kvm_vgic_create(struct kvm *kvm, u32 type)
 		return ret;
 
 	kvm_for_each_vcpu(i, vcpu, kvm) {
-		if (vcpu->arch.has_run_once)
+		if (vcpu_has_run_once(vcpu))
 			goto out_unlock;
 	}
 	ret = 0;
-- 
GitLab


From d907216e5c932df573d463835ea34188420476d3 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 26 Nov 2021 11:36:43 +0000
Subject: [PATCH 2028/4878] FROMGIT: KVM: arm64: Add minimal handling for the
 ARMv8.7 PMU

When running a KVM guest hosted on an ARMv8.7 machine, the host
kernel complains that it doesn't know about the architected number
of events.

Fix it by adding the PMUver code corresponding to PMUv3 for ARMv8.7.

Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Tested-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211126115533.217903-1-maz@kernel.org
(cherry picked from commit 00e228b31596c6bf5f08b5ef76f80cb26e620f02
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I705efed6bcdd2000a57901bd04ba080a36527ad4
---
 arch/arm64/include/asm/sysreg.h | 1 +
 arch/arm64/kvm/pmu-emul.c       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index b0dfcfa4bcd5c..f3146683d3bf6 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -921,6 +921,7 @@
 #define ID_AA64DFR0_PMUVER_8_1		0x4
 #define ID_AA64DFR0_PMUVER_8_4		0x5
 #define ID_AA64DFR0_PMUVER_8_5		0x6
+#define ID_AA64DFR0_PMUVER_8_7		0x7
 #define ID_AA64DFR0_PMUVER_IMP_DEF	0xf
 
 #define ID_DFR0_PERFMON_SHIFT		24
diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c
index a5e4bbf5e68f9..ca92cc5c71c68 100644
--- a/arch/arm64/kvm/pmu-emul.c
+++ b/arch/arm64/kvm/pmu-emul.c
@@ -28,6 +28,7 @@ static u32 kvm_pmu_event_mask(struct kvm *kvm)
 	case ID_AA64DFR0_PMUVER_8_1:
 	case ID_AA64DFR0_PMUVER_8_4:
 	case ID_AA64DFR0_PMUVER_8_5:
+	case ID_AA64DFR0_PMUVER_8_7:
 		return GENMASK(15, 0);
 	default:		/* Shouldn't be here, just for sanity */
 		WARN_ONCE(1, "Unknown PMU version %d\n", kvm->arch.pmuver);
-- 
GitLab


From 21ceef2920f7d413f6b8b3790cb2f7235e9bf905 Mon Sep 17 00:00:00 2001
From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Date: Sat, 4 Dec 2021 22:35:18 +0100
Subject: [PATCH 2029/4878] FROMGIT: KVM: arm64: Constify kvm_io_gic_ops

The only usage of kvm_io_gic_ops is to make a comparison with its
address and to pass its address to kvm_iodevice_init() which takes a
pointer to const kvm_io_device_ops as input. Make it const to allow the
compiler to put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211204213518.83642-1-rikard.falkeborn@gmail.com
(cherry picked from commit 636dcd0204599f94680f8f87b46cef7c66034ac0
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I057a166181bea5855dd19be14971ac086e02ec12
---
 arch/arm64/kvm/vgic/vgic-mmio.c | 2 +-
 arch/arm64/kvm/vgic/vgic-mmio.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index 48c6067fc5ecb..7068da080799c 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c
@@ -1050,7 +1050,7 @@ static int dispatch_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
 	return 0;
 }
 
-struct kvm_io_device_ops kvm_io_gic_ops = {
+const struct kvm_io_device_ops kvm_io_gic_ops = {
 	.read = dispatch_mmio_read,
 	.write = dispatch_mmio_write,
 };
diff --git a/arch/arm64/kvm/vgic/vgic-mmio.h b/arch/arm64/kvm/vgic/vgic-mmio.h
index fefcca2b14dc7..3fa696f198a37 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.h
+++ b/arch/arm64/kvm/vgic/vgic-mmio.h
@@ -34,7 +34,7 @@ struct vgic_register_region {
 	};
 };
 
-extern struct kvm_io_device_ops kvm_io_gic_ops;
+extern const struct kvm_io_device_ops kvm_io_gic_ops;
 
 #define VGIC_ACCESS_8bit	1
 #define VGIC_ACCESS_32bit	2
-- 
GitLab


From 8a3b33dc2e46d5aa492e1abd35cf715c231613b9 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 2 Dec 2021 17:10:46 +0000
Subject: [PATCH 2030/4878] FROMGIT: arm64: Add missing include of
 asm/cpufeature.h to asm/mmu.h

asm/mmu.h refers to cpus_have_const_cap() in the definition of
arm64_kernel_unmapped_at_el0() so include asm/cpufeature.h directly
rather than force all users of the header to do it themselves.

Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211202171048.26924-2-will@kernel.org
(cherry picked from commit 7e04f05984dd03edad7daaa4fa97958b7133c62a
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Iaa42070f8f41255406b1031e5a59f58c06f47f5d
---
 arch/arm64/include/asm/mmu.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index e9c30859f80cd..48f8466a4be92 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -15,6 +15,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/refcount.h>
+#include <asm/cpufeature.h>
 
 typedef struct {
 	atomic64_t	id;
-- 
GitLab


From 95bfeeb6b5fbf97f0848a8dbf42e8edd02050c1c Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 2 Dec 2021 17:10:47 +0000
Subject: [PATCH 2031/4878] FROMGIT: KVM: arm64: Generate hyp_constants.h for
 the host

In order to avoid exposing hypervisor (EL2) data structures directly to
the host, generate hyp_constants.h to provide constants such as structure
sizes to the host without dragging in the definitions themselves.

Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211202171048.26924-3-will@kernel.org
(cherry picked from commit ed4ed15d571065eb66ea718d7f6050553586417d
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I24957ea3ef1da8863a60dcf53c146b3a78f56fa5
---
 arch/arm64/kvm/.gitignore          |  2 ++
 arch/arm64/kvm/Makefile            | 16 ++++++++++++++++
 arch/arm64/kvm/hyp/hyp-constants.c | 10 ++++++++++
 3 files changed, 28 insertions(+)
 create mode 100644 arch/arm64/kvm/.gitignore
 create mode 100644 arch/arm64/kvm/hyp/hyp-constants.c

diff --git a/arch/arm64/kvm/.gitignore b/arch/arm64/kvm/.gitignore
new file mode 100644
index 0000000000000..6182aefb83024
--- /dev/null
+++ b/arch/arm64/kvm/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+hyp_constants.h
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 06d3a37a92720..d6e93eacc9e2e 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -25,3 +25,19 @@ kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \
 	 vgic/vgic-its.o vgic/vgic-debug.o
 
 kvm-$(CONFIG_HW_PERF_EVENTS)  += pmu-emul.o
+
+always-y := hyp_constants.h hyp-constants.s
+
+define rule_gen_hyp_constants
+	$(call filechk,offsets,__HYP_CONSTANTS_H__)
+endef
+
+CFLAGS_hyp-constants.o = -I $(srctree)/$(src)/hyp/include
+$(obj)/hyp-constants.s: $(src)/hyp/hyp-constants.c FORCE
+	$(call if_changed_dep,cc_s_c)
+
+$(obj)/hyp_constants.h: $(obj)/hyp-constants.s FORCE
+	$(call if_changed_rule,gen_hyp_constants)
+
+obj-kvm := $(addprefix $(obj)/, $(kvm-y))
+$(obj-kvm): $(obj)/hyp_constants.h
diff --git a/arch/arm64/kvm/hyp/hyp-constants.c b/arch/arm64/kvm/hyp/hyp-constants.c
new file mode 100644
index 0000000000000..b3742a6691e87
--- /dev/null
+++ b/arch/arm64/kvm/hyp/hyp-constants.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/kbuild.h>
+#include <nvhe/memory.h>
+
+int main(void)
+{
+	DEFINE(STRUCT_HYP_PAGE_SIZE,	sizeof(struct hyp_page));
+	return 0;
+}
-- 
GitLab


From 63f358ca1b8d32427ff29b27c3693fa6001bed98 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 2 Dec 2021 17:10:48 +0000
Subject: [PATCH 2032/4878] FROMGIT: KVM: arm64: Move host EL1 code out of hyp/
 directory

kvm/hyp/reserved_mem.c contains host code executing at EL1 and is not
linked into the hypervisor object. Move the file into kvm/pkvm.c and
rework the headers so that the definitions shared between the host and
the hypervisor live in asm/kvm_pkvm.h.

Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211202171048.26924-4-will@kernel.org
(cherry picked from commit 9429f4b0412d05243237c7695c59d0a7b1174492
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ic53c6ef5262e473e61bfdd44204b6a6725035827
---
 arch/arm64/include/asm/kvm_pkvm.h             | 71 +++++++++++++++++++
 arch/arm64/kvm/Makefile                       |  2 +-
 arch/arm64/kvm/hyp/Makefile                   |  2 +-
 arch/arm64/kvm/hyp/include/nvhe/mm.h          | 57 ---------------
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         |  1 +
 arch/arm64/kvm/hyp/nvhe/mm.c                  |  1 +
 arch/arm64/kvm/hyp/nvhe/setup.c               |  1 +
 arch/arm64/kvm/{hyp/reserved_mem.c => pkvm.c} |  8 +--
 8 files changed, 80 insertions(+), 63 deletions(-)
 create mode 100644 arch/arm64/include/asm/kvm_pkvm.h
 rename arch/arm64/kvm/{hyp/reserved_mem.c => pkvm.c} (94%)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
new file mode 100644
index 0000000000000..9f4ad2a8df59c
--- /dev/null
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 - Google LLC
+ * Author: Quentin Perret <qperret@google.com>
+ */
+#ifndef __ARM64_KVM_PKVM_H__
+#define __ARM64_KVM_PKVM_H__
+
+#include <linux/memblock.h>
+#include <asm/kvm_pgtable.h>
+
+#define HYP_MEMBLOCK_REGIONS 128
+
+extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
+extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
+
+static inline unsigned long __hyp_pgtable_max_pages(unsigned long nr_pages)
+{
+	unsigned long total = 0, i;
+
+	/* Provision the worst case scenario */
+	for (i = 0; i < KVM_PGTABLE_MAX_LEVELS; i++) {
+		nr_pages = DIV_ROUND_UP(nr_pages, PTRS_PER_PTE);
+		total += nr_pages;
+	}
+
+	return total;
+}
+
+static inline unsigned long __hyp_pgtable_total_pages(void)
+{
+	unsigned long res = 0, i;
+
+	/* Cover all of memory with page-granularity */
+	for (i = 0; i < kvm_nvhe_sym(hyp_memblock_nr); i++) {
+		struct memblock_region *reg = &kvm_nvhe_sym(hyp_memory)[i];
+		res += __hyp_pgtable_max_pages(reg->size >> PAGE_SHIFT);
+	}
+
+	return res;
+}
+
+static inline unsigned long hyp_s1_pgtable_pages(void)
+{
+	unsigned long res;
+
+	res = __hyp_pgtable_total_pages();
+
+	/* Allow 1 GiB for private mappings */
+	res += __hyp_pgtable_max_pages(SZ_1G >> PAGE_SHIFT);
+
+	return res;
+}
+
+static inline unsigned long host_s2_pgtable_pages(void)
+{
+	unsigned long res;
+
+	/*
+	 * Include an extra 16 pages to safely upper-bound the worst case of
+	 * concatenated pgds.
+	 */
+	res = __hyp_pgtable_total_pages() + 16;
+
+	/* Allow 1 GiB for MMIO mappings */
+	res += __hyp_pgtable_max_pages(SZ_1G >> PAGE_SHIFT);
+
+	return res;
+}
+
+#endif	/* __ARM64_KVM_PKVM_H__ */
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index d6e93eacc9e2e..be1544906e909 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -15,7 +15,7 @@ kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \
 	 arm.o mmu.o mmio.o psci.o perf.o hypercalls.o pvtime.o \
 	 inject_fault.o va_layout.o handle_exit.o \
 	 guest.o debug.o reset.o sys_regs.o \
-	 vgic-sys-reg-v3.o fpsimd.o pmu.o \
+	 vgic-sys-reg-v3.o fpsimd.o pmu.o pkvm.o \
 	 arch_timer.o trng.o\
 	 vgic/vgic.o vgic/vgic-init.o \
 	 vgic/vgic-irqfd.o vgic/vgic-v2.o \
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index b726332eec49e..687598e41b21f 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -10,4 +10,4 @@ subdir-ccflags-y := -I$(incdir)				\
 		    -DDISABLE_BRANCH_PROFILING		\
 		    $(DISABLE_STACKLEAK_PLUGIN)
 
-obj-$(CONFIG_KVM) += vhe/ nvhe/ pgtable.o reserved_mem.o
+obj-$(CONFIG_KVM) += vhe/ nvhe/ pgtable.o
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h
index c9a8f535212ea..ef6a58a042352 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h
@@ -10,9 +10,6 @@
 #include <nvhe/memory.h>
 #include <nvhe/spinlock.h>
 
-#define HYP_MEMBLOCK_REGIONS 128
-extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
-extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
 extern struct kvm_pgtable pkvm_pgtable;
 extern hyp_spinlock_t pkvm_pgd_lock;
 extern struct hyp_pool hpool;
@@ -39,58 +36,4 @@ static inline void hyp_vmemmap_range(phys_addr_t phys, unsigned long size,
 	*end = ALIGN(*end, PAGE_SIZE);
 }
 
-static inline unsigned long __hyp_pgtable_max_pages(unsigned long nr_pages)
-{
-	unsigned long total = 0, i;
-
-	/* Provision the worst case scenario */
-	for (i = 0; i < KVM_PGTABLE_MAX_LEVELS; i++) {
-		nr_pages = DIV_ROUND_UP(nr_pages, PTRS_PER_PTE);
-		total += nr_pages;
-	}
-
-	return total;
-}
-
-static inline unsigned long __hyp_pgtable_total_pages(void)
-{
-	unsigned long res = 0, i;
-
-	/* Cover all of memory with page-granularity */
-	for (i = 0; i < kvm_nvhe_sym(hyp_memblock_nr); i++) {
-		struct memblock_region *reg = &kvm_nvhe_sym(hyp_memory)[i];
-		res += __hyp_pgtable_max_pages(reg->size >> PAGE_SHIFT);
-	}
-
-	return res;
-}
-
-static inline unsigned long hyp_s1_pgtable_pages(void)
-{
-	unsigned long res;
-
-	res = __hyp_pgtable_total_pages();
-
-	/* Allow 1 GiB for private mappings */
-	res += __hyp_pgtable_max_pages(SZ_1G >> PAGE_SHIFT);
-
-	return res;
-}
-
-static inline unsigned long host_s2_pgtable_pages(void)
-{
-	unsigned long res;
-
-	/*
-	 * Include an extra 16 pages to safely upper-bound the worst case of
-	 * concatenated pgds.
-	 */
-	res = __hyp_pgtable_total_pages() + 16;
-
-	/* Allow 1 GiB for MMIO mappings */
-	res += __hyp_pgtable_max_pages(SZ_1G >> PAGE_SHIFT);
-
-	return res;
-}
-
 #endif /* __KVM_HYP_MM_H */
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 1f5c53e604e8f..8a344c8b7fe8d 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -9,6 +9,7 @@
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_pgtable.h>
+#include <asm/kvm_pkvm.h>
 #include <asm/stage2_pgtable.h>
 
 #include <hyp/adjust_pc.h>
diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 2fabeceb889a9..9e0ff5a700ddd 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -8,6 +8,7 @@
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_pgtable.h>
+#include <asm/kvm_pkvm.h>
 #include <asm/spectre.h>
 
 #include <nvhe/early_alloc.h>
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index ab09d41ad08f4..4e7687bc8ac61 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -8,6 +8,7 @@
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_pgtable.h>
+#include <asm/kvm_pkvm.h>
 
 #include <nvhe/early_alloc.h>
 #include <nvhe/fixed_config.h>
diff --git a/arch/arm64/kvm/hyp/reserved_mem.c b/arch/arm64/kvm/pkvm.c
similarity index 94%
rename from arch/arm64/kvm/hyp/reserved_mem.c
rename to arch/arm64/kvm/pkvm.c
index d654921dd09b5..90ad4b84cbe8e 100644
--- a/arch/arm64/kvm/hyp/reserved_mem.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -8,10 +8,9 @@
 #include <linux/memblock.h>
 #include <linux/sort.h>
 
-#include <asm/kvm_host.h>
+#include <asm/kvm_pkvm.h>
 
-#include <nvhe/memory.h>
-#include <nvhe/mm.h>
+#include "hyp_constants.h"
 
 static struct memblock_region *hyp_memory = kvm_nvhe_sym(hyp_memory);
 static unsigned int *hyp_memblock_nr_ptr = &kvm_nvhe_sym(hyp_memblock_nr);
@@ -82,7 +81,8 @@ void __init kvm_hyp_reserve(void)
 	do {
 		prev = nr_pages;
 		nr_pages = hyp_mem_pages + prev;
-		nr_pages = DIV_ROUND_UP(nr_pages * sizeof(struct hyp_page), PAGE_SIZE);
+		nr_pages = DIV_ROUND_UP(nr_pages * STRUCT_HYP_PAGE_SIZE,
+					PAGE_SIZE);
 		nr_pages += __hyp_pgtable_max_pages(nr_pages);
 	} while (nr_pages != prev);
 	hyp_mem_pages += nr_pages;
-- 
GitLab


From ad10bedb3f1f090105b78091c10ebc52af4b43fb Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Mon, 18 Oct 2021 17:14:07 +0200
Subject: [PATCH 2033/4878] FROMGIT: KVM: Drop stale
 kvm_is_transparent_hugepage() declaration

kvm_is_transparent_hugepage() was removed in commit 205d76ff0684 ("KVM:
Remove kvm_is_transparent_hugepage() and PageTransCompoundMap()") but its
declaration in include/linux/kvm_host.h persisted. Drop it.

Fixes: 205d76ff0684 (""KVM: Remove kvm_is_transparent_hugepage() and PageTransCompoundMap()")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211018151407.2107363-1-vkuznets@redhat.com
(cherry picked from commit f0e6e6fa41b3d2aa1dcb61dd4ed6d7be004bb5a8
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I9078ab62be40bc843ca2959f929ed22c1b8888e2
---
 include/linux/kvm_host.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 594fa8c9988e5..8350aad457775 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1024,7 +1024,6 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
 
 bool kvm_is_reserved_pfn(kvm_pfn_t pfn);
 bool kvm_is_zone_device_pfn(kvm_pfn_t pfn);
-bool kvm_is_transparent_hugepage(kvm_pfn_t pfn);
 
 struct kvm_irq_ack_notifier {
 	struct hlist_node link;
-- 
GitLab


From 4a0f27b32e7f13d0cde5397b0a3ae5fe83653e95 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 11:20:18 +0000
Subject: [PATCH 2034/4878] FROMLIST: virtio_ring: Fix querying of maximum DMA
 mapping size for virtio device

virtio_max_dma_size() returns the maximum DMA mapping size of the virtio
device by querying dma_max_mapping_size() for the device when the DMA
API is in use for the vring. Unfortunately, the device passed is
initialised by register_virtio_device() and does not inherit the DMA
configuration from its parent, resulting in SWIOTLB errors when bouncing
is enabled and the default 256K mapping limit (IO_TLB_SEGSIZE) is not
respected:

  | virtio-pci 0000:00:01.0: swiotlb buffer is full (sz: 294912 bytes), total 1024 (slots), used 725 (slots)

Follow the pattern used elsewhere in the virtio_ring code when calling
into the DMA layer and pass the parent device to dma_max_mapping_size()
instead.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211201112018.25276-1-will@kernel.org
Bug: 209580772
Change-Id: I3389270b4df2b0e0d3813ff8be61bdb594c1b0bd
Signed-off-by: Quentin Perret <qperret@google.com>
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index e9432dbbec0a7..cce75d3b3ba05 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -263,7 +263,7 @@ size_t virtio_max_dma_size(struct virtio_device *vdev)
 	size_t max_segment_size = SIZE_MAX;
 
 	if (vring_use_dma_api(vdev))
-		max_segment_size = dma_max_mapping_size(&vdev->dev);
+		max_segment_size = dma_max_mapping_size(vdev->dev.parent);
 
 	return max_segment_size;
 }
-- 
GitLab


From c765c9635a7a43635864c14b848274ebe8b71343 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 1 Dec 2021 17:03:55 +0000
Subject: [PATCH 2035/4878] FROMLIST: KVM: arm64: Check if running in VHE from
 kvm_host_owns_hyp_mappings()

The kvm_host_owns_hyp_mappings() function should return true if and only
if the host kernel is responsible for creating the hypervisor stage-1
mappings. That is only possible in standard non-VHE mode, or during boot
in protected nVHE mode. But either way, non of this makes sense in VHE,
so make sure to catch this case as well, hence making the function
return sensible values in any context (VHE or not).

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-2-qperret@google.com
Bug: 209599700
Change-Id: Iec9d5f5f6f1258b76725df9b93064a9ddef1e670
---
 arch/arm64/kvm/mmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index d1d77d9d21c96..e899d2c464ba1 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -239,6 +239,9 @@ void free_hyp_pgds(void)
 
 static bool kvm_host_owns_hyp_mappings(void)
 {
+	if (is_kernel_in_hyp_mode())
+		return false;
+
 	if (static_branch_likely(&kvm_protected_mode_initialized))
 		return false;
 
-- 
GitLab


From b66c10e133975c2787c328a0bd233eee295b3126 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 1 Dec 2021 17:03:56 +0000
Subject: [PATCH 2036/4878] FROMLIST: KVM: arm64: Provide {get,put}_page()
 stubs for early hyp allocator

In nVHE protected mode, the EL2 code uses a temporary allocator during
boot while re-creating its stage-1 page-table. Unfortunately, the
hyp_vmmemap is not ready to use at this stage, so refcounting pages
is not possible. That is not currently a problem because hyp stage-1
mappings are never removed, which implies refcounting of page-table
pages is unnecessary.

In preparation for allowing hypervisor stage-1 mappings to be removed,
provide stub implementations for {get,put}_page() in the early allocator.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-3-qperret@google.com
Bug: 209599700
Change-Id: I051ceebbe2c564ff88726a451f83af646f0d2cf0
---
 arch/arm64/kvm/hyp/nvhe/early_alloc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/early_alloc.c b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
index 1306c430ab876..00de04153cc64 100644
--- a/arch/arm64/kvm/hyp/nvhe/early_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
@@ -43,6 +43,9 @@ void *hyp_early_alloc_page(void *arg)
 	return hyp_early_alloc_contig(1);
 }
 
+static void hyp_early_alloc_get_page(void *addr) { }
+static void hyp_early_alloc_put_page(void *addr) { }
+
 void hyp_early_alloc_init(void *virt, unsigned long size)
 {
 	base = cur = (unsigned long)virt;
@@ -51,4 +54,6 @@ void hyp_early_alloc_init(void *virt, unsigned long size)
 	hyp_early_alloc_mm_ops.zalloc_page = hyp_early_alloc_page;
 	hyp_early_alloc_mm_ops.phys_to_virt = hyp_phys_to_virt;
 	hyp_early_alloc_mm_ops.virt_to_phys = hyp_virt_to_phys;
+	hyp_early_alloc_mm_ops.get_page = hyp_early_alloc_get_page;
+	hyp_early_alloc_mm_ops.put_page = hyp_early_alloc_put_page;
 }
-- 
GitLab


From e96c599591e2dd3f2666927a02c7ee758f5e58e3 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 1 Dec 2021 17:03:57 +0000
Subject: [PATCH 2037/4878] FROMLIST: KVM: arm64: Refcount hyp stage-1 pgtable
 pages

To prepare the ground for allowing hyp stage-1 mappings to be removed at
run-time, update the KVM page-table code to maintain a correct refcount
using the ->{get,put}_page() function callbacks.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-4-qperret@google.com
Bug: 209599700
Change-Id: If45f4a5c62e70db5c6ee60192fff5ca4b945aa31
---
 arch/arm64/kvm/hyp/pgtable.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index f8ceebe4982eb..768a588351536 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -408,8 +408,10 @@ static bool hyp_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 		return false;
 
 	new = kvm_init_valid_leaf_pte(phys, data->attr, level);
-	if (hyp_pte_needs_update(old, new))
+	if (hyp_pte_needs_update(old, new)) {
 		smp_store_release(ptep, new);
+		data->mm_ops->get_page(ptep);
+	}
 
 	data->phys += granule;
 	return true;
@@ -433,6 +435,7 @@ static int hyp_map_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 		return -ENOMEM;
 
 	kvm_set_table_pte(ptep, childp, mm_ops);
+	mm_ops->get_page(ptep);
 	return 0;
 }
 
@@ -482,8 +485,16 @@ static int hyp_free_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 			   enum kvm_pgtable_walk_flags flag, void * const arg)
 {
 	struct kvm_pgtable_mm_ops *mm_ops = arg;
+	kvm_pte_t pte = *ptep;
+
+	if (!kvm_pte_valid(pte))
+		return 0;
+
+	mm_ops->put_page(ptep);
+
+	if (kvm_pte_table(pte, level))
+		mm_ops->put_page(kvm_pte_follow(pte, mm_ops));
 
-	mm_ops->put_page((void *)kvm_pte_follow(*ptep, mm_ops));
 	return 0;
 }
 
@@ -491,7 +502,7 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt)
 {
 	struct kvm_pgtable_walker walker = {
 		.cb	= hyp_free_walker,
-		.flags	= KVM_PGTABLE_WALK_TABLE_POST,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
 		.arg	= pgt->mm_ops,
 	};
 
-- 
GitLab


From edffd3888c43b65d9092dbd6d40ea1e7a708ae2d Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 1 Dec 2021 17:03:58 +0000
Subject: [PATCH 2038/4878] BACKPORT: FROMLIST: KVM: arm64: Fixup hyp stage-1
 refcount

In nVHE-protected mode, the hyp stage-1 page-table refcount is broken
due to the lack of refcount support in the early allocator. Fix-up the
refcount in the finalize walker, once the 'hyp_vmemmap' is up and running.

[ qperret: BACKPORT because of conflict with S2MPU init ]

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-5-qperret@google.com
Bug: 209599700
Change-Id: Ib31ace99838f397d7a2e48bfd43c6f4eaf730878
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 4e7687bc8ac61..6bcbf959821c5 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -166,6 +166,7 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 					 enum kvm_pgtable_walk_flags flag,
 					 void * const arg)
 {
+	struct kvm_pgtable_mm_ops *mm_ops = arg;
 	enum kvm_pgtable_prot prot;
 	enum pkvm_page_state state;
 	kvm_pte_t pte = *ptep;
@@ -174,6 +175,15 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 	if (!kvm_pte_valid(pte))
 		return 0;
 
+	/*
+	 * Fix-up the refcount for the page-table pages as the early allocator
+	 * was unable to access the hyp_vmemmap and so the buddy allocator has
+	 * initialised the refcount to '1'.
+	 */
+	mm_ops->get_page(ptep);
+	if (flag != KVM_PGTABLE_WALK_LEAF)
+		return 0;
+
 	if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
 		return -EINVAL;
 
@@ -206,7 +216,8 @@ static int finalize_host_mappings(void)
 {
 	struct kvm_pgtable_walker walker = {
 		.cb	= finalize_host_mappings_walker,
-		.flags	= KVM_PGTABLE_WALK_LEAF,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
+		.arg	= pkvm_pgtable.mm_ops,
 	};
 	int i, ret;
 
-- 
GitLab


From 323950831990e43a3760373211498fa92c892a73 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:03:59 +0000
Subject: [PATCH 2039/4878] FROMLIST: KVM: arm64: Hook up ->page_count() for
 hypervisor stage-1 page-table

kvm_pgtable_hyp_unmap() relies on the ->page_count() function callback
being provided by the memory-management operations for the page-table.

Wire up this callback for the hypervisor stage-1 page-table.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-6-qperret@google.com
Bug: 209599700
Change-Id: Ieaf1f60698e1ebafc60424e879ccfd6ec192dbb5
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 6bcbf959821c5..7da0239d6aef7 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -274,6 +274,7 @@ void __noreturn __pkvm_init_finalise(void)
 		.virt_to_phys = hyp_virt_to_phys,
 		.get_page = hpool_get_page,
 		.put_page = hpool_put_page,
+		.page_count = hyp_page_count,
 	};
 	pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
 
-- 
GitLab


From 446ab9f9b4a50e612f3d561930340b1856363c0f Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:00 +0000
Subject: [PATCH 2040/4878] FROMLIST: KVM: arm64: Implement
 kvm_pgtable_hyp_unmap() at EL2

Implement kvm_pgtable_hyp_unmap() which can be used to remove hypervisor
stage-1 mappings at EL2.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-7-qperret@google.com
Bug: 209599700
Change-Id: I8cf45752704850162bb02b89cc04449679febe72
---
 arch/arm64/include/asm/kvm_pgtable.h | 21 ++++++++++
 arch/arm64/kvm/hyp/pgtable.c         | 63 ++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 0277838295840..9d076f36401d1 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -251,6 +251,27 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt);
 int kvm_pgtable_hyp_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys,
 			enum kvm_pgtable_prot prot);
 
+/**
+ * kvm_pgtable_hyp_unmap() - Remove a mapping from a hypervisor stage-1 page-table.
+ * @pgt:	Page-table structure initialised by kvm_pgtable_hyp_init().
+ * @addr:	Virtual address from which to remove the mapping.
+ * @size:	Size of the mapping.
+ *
+ * The offset of @addr within a page is ignored, @size is rounded-up to
+ * the next page boundary and @phys is rounded-down to the previous page
+ * boundary.
+ *
+ * TLB invalidation is performed for each page-table entry cleared during the
+ * unmapping operation and the reference count for the page-table page
+ * containing the cleared entry is decremented, with unreferenced pages being
+ * freed. The unmapping operation will stop early if it encounters either an
+ * invalid page-table entry or a valid block mapping which maps beyond the range
+ * being unmapped.
+ *
+ * Return: Number of bytes unmapped, which may be 0.
+ */
+u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size);
+
 /**
  * kvm_get_vtcr() - Helper to construct VTCR_EL2
  * @mmfr0:	Sanitized value of SYS_ID_AA64MMFR0_EL1 register.
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 768a588351536..6ad4cb2d69477 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -463,6 +463,69 @@ int kvm_pgtable_hyp_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys,
 	return ret;
 }
 
+struct hyp_unmap_data {
+	u64				unmapped;
+	struct kvm_pgtable_mm_ops	*mm_ops;
+};
+
+static int hyp_unmap_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
+			    enum kvm_pgtable_walk_flags flag, void * const arg)
+{
+	kvm_pte_t pte = *ptep, *childp = NULL;
+	u64 granule = kvm_granule_size(level);
+	struct hyp_unmap_data *data = arg;
+	struct kvm_pgtable_mm_ops *mm_ops = data->mm_ops;
+
+	if (!kvm_pte_valid(pte))
+		return -EINVAL;
+
+	if (kvm_pte_table(pte, level)) {
+		childp = kvm_pte_follow(pte, mm_ops);
+
+		if (mm_ops->page_count(childp) != 1)
+			return 0;
+
+		kvm_clear_pte(ptep);
+		dsb(ishst);
+		__tlbi_level(vae2is, __TLBI_VADDR(addr, 0), level);
+	} else {
+		if (end - addr < granule)
+			return -EINVAL;
+
+		kvm_clear_pte(ptep);
+		dsb(ishst);
+		__tlbi_level(vale2is, __TLBI_VADDR(addr, 0), level);
+		data->unmapped += granule;
+	}
+
+	dsb(ish);
+	isb();
+	mm_ops->put_page(ptep);
+
+	if (childp)
+		mm_ops->put_page(childp);
+
+	return 0;
+}
+
+u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
+{
+	struct hyp_unmap_data unmap_data = {
+		.mm_ops	= pgt->mm_ops,
+	};
+	struct kvm_pgtable_walker walker = {
+		.cb	= hyp_unmap_walker,
+		.arg	= &unmap_data,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
+	};
+
+	if (!pgt->mm_ops->page_count)
+		return 0;
+
+	kvm_pgtable_walk(pgt, addr, size, &walker);
+	return unmap_data.unmapped;
+}
+
 int kvm_pgtable_hyp_init(struct kvm_pgtable *pgt, u32 va_bits,
 			 struct kvm_pgtable_mm_ops *mm_ops)
 {
-- 
GitLab


From 21fb63c7099b2286d5e8303aa86d85debb74cb3e Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 12 Oct 2021 15:13:41 +0100
Subject: [PATCH 2041/4878] FROMLIST: KVM: arm64: Introduce kvm_share_hyp()

The create_hyp_mappings() function can currently be called at any point
in time. However, its behaviour in protected mode changes widely
depending on when it is being called. Prior to KVM init, it is used to
create the temporary page-table used to bring-up the hypervisor, and
later on it is transparently turned into a 'share' hypercall when the
kernel has lost control over the hypervisor stage-1. In order to prepare
the ground for also unsharing pages with the hypervisor during guest
teardown, introduce a kvm_share_hyp() function to make it clear in which
places a share hypercall should be expected, as we will soon need a
matching unshare hypercall in all those places.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-8-qperret@google.com/
Bug: 209599700
Change-Id: I17b9c2542e21f7c4cef0ee1e358b71a4f01c6647
---
 arch/arm64/include/asm/kvm_mmu.h |  1 +
 arch/arm64/kvm/arm.c             |  4 ++--
 arch/arm64/kvm/fpsimd.c          |  2 +-
 arch/arm64/kvm/mmu.c             | 27 +++++++++++++++++++++------
 arch/arm64/kvm/reset.c           |  2 +-
 5 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 02d3788877438..185d0f62b7242 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -150,6 +150,7 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
 #include <asm/kvm_pgtable.h>
 #include <asm/stage2_pgtable.h>
 
+int kvm_share_hyp(void *from, void *to);
 int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 			   void __iomem **kaddr,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 24f26da55e1c0..1e6b7aee6e69d 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -145,7 +145,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	if (ret)
 		return ret;
 
-	ret = create_hyp_mappings(kvm, kvm + 1, PAGE_HYP);
+	ret = kvm_share_hyp(kvm, kvm + 1);
 	if (ret)
 		goto out_free_stage2_pgd;
 
@@ -347,7 +347,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
 	if (err)
 		return err;
 
-	return create_hyp_mappings(vcpu, vcpu + 1, PAGE_HYP);
+	return kvm_share_hyp(vcpu, vcpu + 1);
 }
 
 void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index ee3291de04be5..6f3f9ce29353e 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -30,7 +30,7 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
 	/* Make sure the host task fpsimd state is visible to hyp: */
-	ret = create_hyp_mappings(fpsimd, fpsimd + 1, PAGE_HYP);
+	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
 	if (ret)
 		goto error;
 
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index e899d2c464ba1..3d1b0214b0043 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -299,6 +299,25 @@ static int pkvm_share_hyp(phys_addr_t start, phys_addr_t end)
 	return 0;
 }
 
+int kvm_share_hyp(void *from, void *to)
+{
+	if (is_kernel_in_hyp_mode())
+		return 0;
+
+	/*
+	 * The share hcall maps things in the 'fixed-offset' region of the hyp
+	 * VA space, so we can only share physically contiguous data-structures
+	 * for now.
+	 */
+	if (is_vmalloc_addr(from) || is_vmalloc_addr(to))
+		return -EINVAL;
+
+	if (kvm_host_owns_hyp_mappings())
+		return create_hyp_mappings(from, to, PAGE_HYP);
+
+	return pkvm_share_hyp(__pa(from), __pa(to));
+}
+
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
@@ -319,12 +338,8 @@ int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot)
 	if (is_kernel_in_hyp_mode())
 		return 0;
 
-	if (!kvm_host_owns_hyp_mappings()) {
-		if (WARN_ON(prot != PAGE_HYP))
-			return -EPERM;
-		return pkvm_share_hyp(kvm_kaddr_to_phys(from),
-				      kvm_kaddr_to_phys(to));
-	}
+	if (!kvm_host_owns_hyp_mappings())
+		return -EPERM;
 
 	start = start & PAGE_MASK;
 	end = PAGE_ALIGN(end);
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index c2a5a3c5cec79..ae9c92fee7ed1 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -113,7 +113,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 	if (!buf)
 		return -ENOMEM;
 
-	ret = create_hyp_mappings(buf, buf + reg_sz, PAGE_HYP);
+	ret = kvm_share_hyp(buf, buf + reg_sz);
 	if (ret) {
 		kfree(buf);
 		return ret;
-- 
GitLab


From 33fa24cc3b40815cbf07f2ee1929a3c814042afc Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 1 Dec 2021 17:04:02 +0000
Subject: [PATCH 2042/4878] FROMLIST: KVM: arm64: pkvm: Refcount the pages
 shared with EL2

In order to simplify the page tracking infrastructure at EL2 in nVHE
protected mode, move the responsibility of refcounting pages that are
shared multiple times on the host. In order to do so, let's create a
red-black tree tracking all the PFNs that have been shared, along with
a refcount.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-9-qperret@google.com
Bug: 209599700
Change-Id: I11dc907d139ba314247fb42e8702a6e80c55c054
---
 arch/arm64/kvm/mmu.c | 78 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 68 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 3d1b0214b0043..fb29ec44d7e24 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -284,23 +284,72 @@ static phys_addr_t kvm_kaddr_to_phys(void *kaddr)
 	}
 }
 
-static int pkvm_share_hyp(phys_addr_t start, phys_addr_t end)
+struct hyp_shared_pfn {
+	u64 pfn;
+	int count;
+	struct rb_node node;
+};
+
+static DEFINE_MUTEX(hyp_shared_pfns_lock);
+static struct rb_root hyp_shared_pfns = RB_ROOT;
+
+static struct hyp_shared_pfn *find_shared_pfn(u64 pfn, struct rb_node ***node,
+					      struct rb_node **parent)
 {
-	phys_addr_t addr;
-	int ret;
+	struct hyp_shared_pfn *this;
 
-	for (addr = ALIGN_DOWN(start, PAGE_SIZE); addr < end; addr += PAGE_SIZE) {
-		ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp,
-					__phys_to_pfn(addr));
-		if (ret)
-			return ret;
+	*node = &hyp_shared_pfns.rb_node;
+	*parent = NULL;
+	while (**node) {
+		this = container_of(**node, struct hyp_shared_pfn, node);
+		*parent = **node;
+		if (this->pfn < pfn)
+			*node = &((**node)->rb_left);
+		else if (this->pfn > pfn)
+			*node = &((**node)->rb_right);
+		else
+			return this;
 	}
 
-	return 0;
+	return NULL;
+}
+
+static int share_pfn_hyp(u64 pfn)
+{
+	struct rb_node **node, *parent;
+	struct hyp_shared_pfn *this;
+	int ret = 0;
+
+	mutex_lock(&hyp_shared_pfns_lock);
+	this = find_shared_pfn(pfn, &node, &parent);
+	if (this) {
+		this->count++;
+		goto unlock;
+	}
+
+	this = kzalloc(sizeof(*this), GFP_KERNEL);
+	if (!this) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	this->pfn = pfn;
+	this->count = 1;
+	rb_link_node(&this->node, parent, node);
+	rb_insert_color(&this->node, &hyp_shared_pfns);
+	ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp, pfn, 1);
+unlock:
+	mutex_unlock(&hyp_shared_pfns_lock);
+
+	return ret;
 }
 
 int kvm_share_hyp(void *from, void *to)
 {
+	phys_addr_t start, end, cur;
+	u64 pfn;
+	int ret;
+
 	if (is_kernel_in_hyp_mode())
 		return 0;
 
@@ -315,7 +364,16 @@ int kvm_share_hyp(void *from, void *to)
 	if (kvm_host_owns_hyp_mappings())
 		return create_hyp_mappings(from, to, PAGE_HYP);
 
-	return pkvm_share_hyp(__pa(from), __pa(to));
+	start = ALIGN_DOWN(__pa(from), PAGE_SIZE);
+	end = PAGE_ALIGN(__pa(to));
+	for (cur = start; cur < end; cur += PAGE_SIZE) {
+		pfn = __phys_to_pfn(cur);
+		ret = share_pfn_hyp(pfn);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
 
 /**
-- 
GitLab


From f80bdbb276ec70c1a5386ac665aafc392984c2bc Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:03 +0000
Subject: [PATCH 2043/4878] FROMLIST: KVM: arm64: Extend pkvm_page_state
 enumeration to handle absent pages

Explicitly name the combination of SW0 | SW1 as reserved in the pte and
introduce a new PKVM_NOPAGE meta-state which, although not directly
stored in the software bits of the pte, can be used to represent an
entry for which there is no underlying page. This is distinct from an
invalid pte, as stage-2 identity mappings for the host are created
lazily and so an invalid pte there is the same as a valid mapping for
the purposes of ownership information.

This state will be used for permission checking during page transitions
in later patches.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-10-qperret@google.com
Bug: 209599700
Change-Id: I7f31f675d39c5b33168eb652ca35822fba2ec0ff
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index b58c910babafd..56445586c7551 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -24,6 +24,11 @@ enum pkvm_page_state {
 	PKVM_PAGE_OWNED			= 0ULL,
 	PKVM_PAGE_SHARED_OWNED		= KVM_PGTABLE_PROT_SW0,
 	PKVM_PAGE_SHARED_BORROWED	= KVM_PGTABLE_PROT_SW1,
+	__PKVM_PAGE_RESERVED		= KVM_PGTABLE_PROT_SW0 |
+					  KVM_PGTABLE_PROT_SW1,
+
+	/* Meta-states which aren't encoded directly in the PTE's SW bits */
+	PKVM_NOPAGE,
 };
 
 #define PKVM_PAGE_STATE_PROT_MASK	(KVM_PGTABLE_PROT_SW0 | KVM_PGTABLE_PROT_SW1)
-- 
GitLab


From fb29cc8de3dec6557f49d87d265c7af48583d6ac Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:04 +0000
Subject: [PATCH 2044/4878] BACKPORT: FROMLIST: KVM: arm64: Introduce wrappers
 for host and hyp spin lock accessors

In preparation for adding additional locked sections for manipulating
page-tables at EL2, introduce some simple wrappers around the host and
hypervisor locks so that it's a bit easier to read and bit more difficult
to take the wrong lock (or even take them in the wrong order).

[ qperret: BACKPORT caused by trivial conflict with S2MPU code ]

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-11-qperret@google.com
Bug: 209599700
Change-Id: If6a1baf1dc099894c3445d6b6fec4dd3a46164a9
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 32 ++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 8a344c8b7fe8d..edf3624598740 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -29,6 +29,26 @@ static struct hyp_pool host_s2_pool;
 
 const u8 pkvm_hyp_id = 1;
 
+static void host_lock_component(void)
+{
+	hyp_spin_lock(&host_kvm.lock);
+}
+
+static void host_unlock_component(void)
+{
+	hyp_spin_unlock(&host_kvm.lock);
+}
+
+static void hyp_lock_component(void)
+{
+	hyp_spin_lock(&pkvm_pgd_lock);
+}
+
+static void hyp_unlock_component(void)
+{
+	hyp_spin_unlock(&pkvm_pgd_lock);
+}
+
 static void *host_s2_zalloc_pages_exact(size_t size)
 {
 	void *addr = hyp_alloc_pages(&host_s2_pool, get_order(size));
@@ -358,14 +378,14 @@ static int host_stage2_idmap(u64 addr)
 			return ret;
 	}
 
-	hyp_spin_lock(&host_kvm.lock);
+	host_lock_component();
 	ret = host_stage2_adjust_range(addr, &range);
 	if (ret)
 		goto unlock;
 
 	ret = host_stage2_idmap_locked(range.start, range.end - range.start, prot);
 unlock:
-	hyp_spin_unlock(&host_kvm.lock);
+	host_unlock_component();
 
 	return ret;
 }
@@ -389,8 +409,8 @@ int __pkvm_host_share_hyp(u64 pfn)
 	if (!addr_is_memory(addr))
 		return -EINVAL;
 
-	hyp_spin_lock(&host_kvm.lock);
-	hyp_spin_lock(&pkvm_pgd_lock);
+	host_lock_component();
+	hyp_lock_component();
 
 	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
 	if (ret)
@@ -452,8 +472,8 @@ map_shared:
 	BUG_ON(ret);
 
 unlock:
-	hyp_spin_unlock(&pkvm_pgd_lock);
-	hyp_spin_unlock(&host_kvm.lock);
+	hyp_unlock_component();
+	host_unlock_component();
 
 	return ret;
 }
-- 
GitLab


From 455e17002b07cffdcb28381c1945a0de1595a726 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:05 +0000
Subject: [PATCH 2045/4878] FROMLIST: KVM: arm64: Implement do_share() helper
 for sharing memory

By default, protected KVM isolates memory pages so that they are
accessible only to their owner: be it the host kernel, the hypervisor
at EL2 or (in future) the guest. Establishing shared-memory regions
between these components therefore involves a transition for each page
so that the owner can share memory with a borrower under a certain set
of permissions.

Introduce a do_share() helper for safely sharing a memory region between
two components. Currently, only host-to-hyp sharing is implemented, but
the code is easily extended to handle other combinations and the
permission checks for each component are reusable.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-12-qperret@google.com
Bug: 209599700
Change-Id: I7edb1b53014ffb4a5aa7a6ee54fd99d8091b57cd
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 237 ++++++++++++++++++++++++++
 1 file changed, 237 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index edf3624598740..f8d072dbac693 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -524,3 +524,240 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 
 	BUG_ON(ret && ret != -EAGAIN);
 }
+
+/* This corresponds to locking order */
+enum pkvm_component_id {
+	PKVM_ID_HOST,
+	PKVM_ID_HYP,
+};
+
+struct pkvm_mem_transition {
+	u64				nr_pages;
+
+	struct {
+		enum pkvm_component_id	id;
+		/* Address in the initiator's address space */
+		u64			addr;
+
+		union {
+			struct {
+				/* Address in the completer's address space */
+				u64	completer_addr;
+			} host;
+		};
+	} initiator;
+
+	struct {
+		enum pkvm_component_id	id;
+	} completer;
+};
+
+struct pkvm_mem_share {
+	const struct pkvm_mem_transition	tx;
+	const enum kvm_pgtable_prot		prot;
+};
+
+struct check_walk_data {
+	enum pkvm_page_state	desired;
+	enum pkvm_page_state	(*get_page_state)(kvm_pte_t pte);
+};
+
+static int __check_page_state_visitor(u64 addr, u64 end, u32 level,
+				      kvm_pte_t *ptep,
+				      enum kvm_pgtable_walk_flags flag,
+				      void * const arg)
+{
+	struct check_walk_data *d = arg;
+	kvm_pte_t pte = *ptep;
+
+	if (kvm_pte_valid(pte) && !addr_is_memory(kvm_pte_to_phys(pte)))
+		return -EINVAL;
+
+	return d->get_page_state(pte) == d->desired ? 0 : -EPERM;
+}
+
+static int check_page_state_range(struct kvm_pgtable *pgt, u64 addr, u64 size,
+				  struct check_walk_data *data)
+{
+	struct kvm_pgtable_walker walker = {
+		.cb	= __check_page_state_visitor,
+		.arg	= data,
+		.flags	= KVM_PGTABLE_WALK_LEAF,
+	};
+
+	return kvm_pgtable_walk(pgt, addr, size, &walker);
+}
+
+static enum pkvm_page_state host_get_page_state(kvm_pte_t pte)
+{
+	if (!kvm_pte_valid(pte) && pte)
+		return PKVM_NOPAGE;
+
+	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
+}
+
+static int __host_check_page_state_range(u64 addr, u64 size,
+					 enum pkvm_page_state state)
+{
+	struct check_walk_data d = {
+		.desired	= state,
+		.get_page_state	= host_get_page_state,
+	};
+
+	hyp_assert_lock_held(&host_kvm.lock);
+	return check_page_state_range(&host_kvm.pgt, addr, size, &d);
+}
+
+static int __host_set_page_state_range(u64 addr, u64 size,
+				       enum pkvm_page_state state)
+{
+	enum kvm_pgtable_prot prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, state);
+
+	return host_stage2_idmap_locked(addr, size, prot);
+}
+
+static int host_request_owned_transition(u64 *completer_addr,
+					 const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
+}
+
+static int host_initiate_share(u64 *completer_addr,
+			       const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
+}
+
+static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
+{
+	if (!kvm_pte_valid(pte))
+		return PKVM_NOPAGE;
+
+	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
+}
+
+static int __hyp_check_page_state_range(u64 addr, u64 size,
+					enum pkvm_page_state state)
+{
+	struct check_walk_data d = {
+		.desired	= state,
+		.get_page_state	= hyp_get_page_state,
+	};
+
+	hyp_assert_lock_held(&pkvm_pgd_lock);
+	return check_page_state_range(&pkvm_pgtable, addr, size, &d);
+}
+
+static bool __hyp_ack_skip_pgtable_check(const struct pkvm_mem_transition *tx)
+{
+	return !(IS_ENABLED(CONFIG_NVHE_EL2_DEBUG) ||
+		 tx->initiator.id != PKVM_ID_HOST);
+}
+
+static int hyp_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
+			 enum kvm_pgtable_prot perms)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (perms != PAGE_HYP)
+		return -EPERM;
+
+	if (__hyp_ack_skip_pgtable_check(tx))
+		return 0;
+
+	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
+}
+
+static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
+			      enum kvm_pgtable_prot perms)
+{
+	void *start = (void *)addr, *end = start + (tx->nr_pages * PAGE_SIZE);
+	enum kvm_pgtable_prot prot;
+
+	prot = pkvm_mkstate(perms, PKVM_PAGE_SHARED_BORROWED);
+	return pkvm_create_mappings_locked(start, end, prot);
+}
+
+static int check_share(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_request_owned_transition(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_ack_share(completer_addr, tx, share->prot);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int __do_share(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_initiate_share(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_complete_share(completer_addr, tx, share->prot);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+/*
+ * do_share():
+ *
+ * The page owner grants access to another component with a given set
+ * of permissions.
+ *
+ * Initiator: OWNED	=> SHARED_OWNED
+ * Completer: NOPAGE	=> SHARED_BORROWED
+ */
+static int do_share(struct pkvm_mem_share *share)
+{
+	int ret;
+
+	ret = check_share(share);
+	if (ret)
+		return ret;
+
+	return WARN_ON(__do_share(share));
+}
-- 
GitLab


From 50e7557b36f69a3e7fd80024e53a961633e3da6a Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:06 +0000
Subject: [PATCH 2046/4878] BACKPORT: FROMLIST: KVM: arm64: Implement
 __pkvm_host_share_hyp() using do_share()

__pkvm_host_share_hyp() shares memory between the host and the
hypervisor so implement it as an invocation of the new do_share()
mechanism.

Note that double-sharing is no longer permitted (as this allows us to
reduce the number of page-table walks significantly), but is thankfully
no longer relied upon by the host.

[ qperret: BACKPORT becuse of conflict caused by the MMIO handler
  introduced with the S2MPU support ]

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-13-qperret@google.com
Bug: 209599700
Change-Id: I8d44fc9ca79ac7ea5f8ca289b3cca08a4879b3cd
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 121 +++++++-------------------
 1 file changed, 33 insertions(+), 88 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index f8d072dbac693..8d39c5d64cff9 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -390,94 +390,6 @@ unlock:
 	return ret;
 }
 
-static inline bool check_prot(enum kvm_pgtable_prot prot,
-			      enum kvm_pgtable_prot required,
-			      enum kvm_pgtable_prot denied)
-{
-	return (prot & (required | denied)) == required;
-}
-
-int __pkvm_host_share_hyp(u64 pfn)
-{
-	phys_addr_t addr = hyp_pfn_to_phys(pfn);
-	enum kvm_pgtable_prot prot, cur;
-	void *virt = __hyp_va(addr);
-	enum pkvm_page_state state;
-	kvm_pte_t pte;
-	int ret;
-
-	if (!addr_is_memory(addr))
-		return -EINVAL;
-
-	host_lock_component();
-	hyp_lock_component();
-
-	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
-	if (ret)
-		goto unlock;
-	if (!pte)
-		goto map_shared;
-
-	/*
-	 * Check attributes in the host stage-2 PTE. We need the page to be:
-	 *  - mapped RWX as we're sharing memory;
-	 *  - not borrowed, as that implies absence of ownership.
-	 * Otherwise, we can't let it got through
-	 */
-	cur = kvm_pgtable_stage2_pte_prot(pte);
-	prot = pkvm_mkstate(0, PKVM_PAGE_SHARED_BORROWED);
-	if (!check_prot(cur, PKVM_HOST_MEM_PROT, prot)) {
-		ret = -EPERM;
-		goto unlock;
-	}
-
-	state = pkvm_getstate(cur);
-	if (state == PKVM_PAGE_OWNED)
-		goto map_shared;
-
-	/*
-	 * Tolerate double-sharing the same page, but this requires
-	 * cross-checking the hypervisor stage-1.
-	 */
-	if (state != PKVM_PAGE_SHARED_OWNED) {
-		ret = -EPERM;
-		goto unlock;
-	}
-
-	ret = kvm_pgtable_get_leaf(&pkvm_pgtable, (u64)virt, &pte, NULL);
-	if (ret)
-		goto unlock;
-
-	/*
-	 * If the page has been shared with the hypervisor, it must be
-	 * already mapped as SHARED_BORROWED in its stage-1.
-	 */
-	cur = kvm_pgtable_hyp_pte_prot(pte);
-	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_SHARED_BORROWED);
-	if (!check_prot(cur, prot, ~prot))
-		ret = -EPERM;
-	goto unlock;
-
-map_shared:
-	/*
-	 * If the page is not yet shared, adjust mappings in both page-tables
-	 * while both locks are held.
-	 */
-	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_SHARED_BORROWED);
-	ret = pkvm_create_mappings_locked(virt, virt + PAGE_SIZE, prot);
-	BUG_ON(ret);
-
-	prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, PKVM_PAGE_SHARED_OWNED);
-	ret = host_stage2_idmap_locked(addr, PAGE_SIZE, prot);
-	BUG_ON(ret);
-
-unlock:
-	hyp_unlock_component();
-	host_unlock_component();
-
-	return ret;
-}
-
 static int host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 				  phys_addr_t addr)
 {
@@ -761,3 +673,36 @@ static int do_share(struct pkvm_mem_share *share)
 
 	return WARN_ON(__do_share(share));
 }
+
+int __pkvm_host_share_hyp(u64 pfn)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 hyp_addr = (u64)__hyp_va(host_addr);
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = hyp_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HYP,
+			},
+		},
+		.prot	= PAGE_HYP,
+	};
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = do_share(&share);
+
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From 0a4821ecc2f0e16b46f83d9ef29602e1b987777f Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:07 +0000
Subject: [PATCH 2047/4878] FROMLIST: KVM: arm64: Implement do_unshare() helper
 for unsharing memory

Tearing down a previously shared memory region results in the borrower
losing access to the underlying pages and returning them to the "owned"
state in the owner.

Implement a do_unshare() helper, along the same lines as do_share(), to
provide this functionality for the host-to-hyp case.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-14-qperret@google.com
Bug: 209599700
Change-Id: I717d87c9aa2d1f1b159d7dc3bca439a2869967e5
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 115 ++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 8d39c5d64cff9..f6309f87c0866 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -538,6 +538,16 @@ static int host_request_owned_transition(u64 *completer_addr,
 	return __host_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
 }
 
+static int host_request_unshare(u64 *completer_addr,
+				const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_check_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
+}
+
 static int host_initiate_share(u64 *completer_addr,
 			       const struct pkvm_mem_transition *tx)
 {
@@ -548,6 +558,16 @@ static int host_initiate_share(u64 *completer_addr,
 	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
 }
 
+static int host_initiate_unshare(u64 *completer_addr,
+				 const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_set_page_state_range(addr, size, PKVM_PAGE_OWNED);
+}
+
 static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
 {
 	if (!kvm_pte_valid(pte))
@@ -588,6 +608,17 @@ static int hyp_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
 }
 
+static int hyp_ack_unshare(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (__hyp_ack_skip_pgtable_check(tx))
+		return 0;
+
+	return __hyp_check_page_state_range(addr, size,
+					    PKVM_PAGE_SHARED_BORROWED);
+}
+
 static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 			      enum kvm_pgtable_prot perms)
 {
@@ -598,6 +629,14 @@ static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return pkvm_create_mappings_locked(start, end, prot);
 }
 
+static int hyp_complete_unshare(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	int ret = kvm_pgtable_hyp_unmap(&pkvm_pgtable, addr, size);
+
+	return (ret != size) ? -EFAULT : 0;
+}
+
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -674,6 +713,82 @@ static int do_share(struct pkvm_mem_share *share)
 	return WARN_ON(__do_share(share));
 }
 
+static int check_unshare(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_request_unshare(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_ack_unshare(completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int __do_unshare(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_initiate_unshare(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_complete_unshare(completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+/*
+ * do_unshare():
+ *
+ * The page owner revokes access from another component for a range of
+ * pages which were previously shared using do_share().
+ *
+ * Initiator: SHARED_OWNED	=> OWNED
+ * Completer: SHARED_BORROWED	=> NOPAGE
+ */
+static int do_unshare(struct pkvm_mem_share *share)
+{
+	int ret;
+
+	ret = check_unshare(share);
+	if (ret)
+		return ret;
+
+	return WARN_ON(__do_unshare(share));
+}
+
 int __pkvm_host_share_hyp(u64 pfn)
 {
 	int ret;
-- 
GitLab


From fee11d0f41b971f05bb5c8e298c1808d50c81dea Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 17:04:08 +0000
Subject: [PATCH 2048/4878] FROMLIST: KVM: arm64: Expose unshare hypercall to
 the host

Introduce an unshare hypercall which can be used to unmap memory from
the hypervisor stage-1 in nVHE protected mode. This will be useful to
update the EL2 ownership state of pages during guest teardown, and
avoids keeping dangling mappings to unreferenced portions of memory.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-15-qperret@google.com
Bug: 209599700
Change-Id: Id79362978000d72b866152d0d83c887e4caeb973
---
 arch/arm64/include/asm/kvm_asm.h              |  1 +
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  8 +++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 33 +++++++++++++++++++
 4 files changed, 43 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 006ca3af082af..edb496f67bfd9 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -62,6 +62,7 @@ enum __kvm_host_smccc_func {
 
 	/* Hypercalls available after pKVM finalisation */
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_unshare_hyp,
 	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 56445586c7551..80e99836eac79 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -55,6 +55,7 @@ extern const u8 pkvm_hyp_id;
 
 int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
+int __pkvm_host_unshare_hyp(u64 pfn);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 75ce2547cd6e1..7600f8bf5b836 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -150,6 +150,13 @@ static void handle___pkvm_host_share_hyp(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_host_share_hyp(pfn);
 }
 
+static void handle___pkvm_host_unshare_hyp(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(u64, pfn, host_ctxt, 1);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_host_unshare_hyp(pfn);
+}
+
 static void handle___pkvm_create_private_mapping(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(phys_addr_t, phys, host_ctxt, 1);
@@ -187,6 +194,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_prot_finalize),
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
+	HANDLE_FUNC(__pkvm_host_unshare_hyp),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
 	HANDLE_FUNC(__kvm_flush_vm_context),
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index f6309f87c0866..860d02c3cb4c0 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -821,3 +821,36 @@ int __pkvm_host_share_hyp(u64 pfn)
 
 	return ret;
 }
+
+int __pkvm_host_unshare_hyp(u64 pfn)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 hyp_addr = (u64)__hyp_va(host_addr);
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = hyp_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HYP,
+			},
+		},
+		.prot	= PAGE_HYP,
+	};
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = do_unshare(&share);
+
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From bcf3fd91beb9146f28bd2a95838a247e8df56ae9 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 12 Oct 2021 15:40:24 +0100
Subject: [PATCH 2049/4878] FROMLIST: KVM: arm64: pkvm: Unshare guest structs
 during teardown

Make use of the newly introduced unshare hypercall during guest teardown
to unmap guest-related data structures from the hyp stage-1.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211201170411.1561936-16-qperret@google.com/
Bug: 209599700
Change-Id: Ife3e9c83ddd69b46490cee8f36a0770747950d69
---
 arch/arm64/include/asm/kvm_host.h |  2 ++
 arch/arm64/include/asm/kvm_mmu.h  |  1 +
 arch/arm64/kvm/arm.c              |  2 ++
 arch/arm64/kvm/fpsimd.c           | 26 +++++++++++++++++++
 arch/arm64/kvm/mmu.c              | 42 +++++++++++++++++++++++++++++++
 arch/arm64/kvm/reset.c            |  8 +++++-
 6 files changed, 80 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 9380ce7cb4ace..8a1fa7d46d81f 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -333,6 +333,7 @@ struct kvm_vcpu_arch {
 	struct kvm_guest_debug_arch external_debug_state;
 
 	struct user_fpsimd_state *host_fpsimd_state;	/* hyp VA */
+	struct task_struct *parent_task;
 
 	struct {
 		/* {Break,watch}point registers */
@@ -760,6 +761,7 @@ void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu);
+void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu);
 
 static inline bool kvm_pmu_counter_deferred(struct perf_event_attr *attr)
 {
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 185d0f62b7242..81839e9a8a242 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -151,6 +151,7 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
 #include <asm/stage2_pgtable.h>
 
 int kvm_share_hyp(void *from, void *to);
+void kvm_unshare_hyp(void *from, void *to);
 int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 			   void __iomem **kaddr,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 1e6b7aee6e69d..49ee57d4141bc 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -187,6 +187,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 		}
 	}
 	atomic_set(&kvm->online_vcpus, 0);
+
+	kvm_unshare_hyp(kvm, kvm + 1);
 }
 
 int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index 6f3f9ce29353e..a5a4ef0285e70 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -14,6 +14,19 @@
 #include <asm/kvm_mmu.h>
 #include <asm/sysreg.h>
 
+void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu)
+{
+	struct task_struct *p = vcpu->arch.parent_task;
+	struct user_fpsimd_state *fpsimd;
+
+	if (!is_protected_kvm_enabled() || !p)
+		return;
+
+	fpsimd = &p->thread.uw.fpsimd_state;
+	kvm_unshare_hyp(fpsimd, fpsimd + 1);
+	put_task_struct(p);
+}
+
 /*
  * Called on entry to KVM_RUN unless this vcpu previously ran at least
  * once and the most recent prior KVM_RUN for this vcpu was called from
@@ -29,12 +42,25 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
+	kvm_vcpu_unshare_task_fp(vcpu);
+
 	/* Make sure the host task fpsimd state is visible to hyp: */
 	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
 	if (ret)
 		goto error;
 
 	vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
+
+	/*
+	 * We need to keep current's task_struct pinned until its data has been
+	 * unshared with the hypervisor to make sure it is not re-used by the
+	 * kernel and donated to someone else while already shared -- see
+	 * kvm_vcpu_unshare_task_fp() for the matching put_task_struct().
+	 */
+	if (is_protected_kvm_enabled()) {
+		get_task_struct(current);
+		vcpu->arch.parent_task = current;
+	}
 error:
 	return ret;
 }
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index fb29ec44d7e24..a5d213437110e 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -344,6 +344,32 @@ unlock:
 	return ret;
 }
 
+static int unshare_pfn_hyp(u64 pfn)
+{
+	struct rb_node **node, *parent;
+	struct hyp_shared_pfn *this;
+	int ret = 0;
+
+	mutex_lock(&hyp_shared_pfns_lock);
+	this = find_shared_pfn(pfn, &node, &parent);
+	if (WARN_ON(!this)) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	this->count--;
+	if (this->count)
+		goto unlock;
+
+	rb_erase(&this->node, &hyp_shared_pfns);
+	kfree(this);
+	ret = kvm_call_hyp_nvhe(__pkvm_host_unshare_hyp, pfn, 1);
+unlock:
+	mutex_unlock(&hyp_shared_pfns_lock);
+
+	return ret;
+}
+
 int kvm_share_hyp(void *from, void *to)
 {
 	phys_addr_t start, end, cur;
@@ -376,6 +402,22 @@ int kvm_share_hyp(void *from, void *to)
 	return 0;
 }
 
+void kvm_unshare_hyp(void *from, void *to)
+{
+	phys_addr_t start, end, cur;
+	u64 pfn;
+
+	if (is_kernel_in_hyp_mode() || kvm_host_owns_hyp_mappings() || !from)
+		return;
+
+	start = ALIGN_DOWN(__pa(from), PAGE_SIZE);
+	end = PAGE_ALIGN(__pa(to));
+	for (cur = start; cur < end; cur += PAGE_SIZE) {
+		pfn = __phys_to_pfn(cur);
+		WARN_ON(unshare_pfn_hyp(pfn));
+	}
+}
+
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index ae9c92fee7ed1..12a658cbed327 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -150,7 +150,13 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu)
 
 void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu)
 {
-	kfree(vcpu->arch.sve_state);
+	void *sve_state = vcpu->arch.sve_state;
+
+	kvm_vcpu_unshare_task_fp(vcpu);
+	kvm_unshare_hyp(vcpu, vcpu + 1);
+	if (sve_state)
+		kvm_unshare_hyp(sve_state, sve_state + vcpu_sve_state_size(vcpu));
+	kfree(sve_state);
 }
 
 static void kvm_vcpu_reset_sve(struct kvm_vcpu *vcpu)
-- 
GitLab


From a2fffdffb7dddb2513b844dde4b1ba07ae387f25 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 8 Dec 2021 15:22:54 +0000
Subject: [PATCH 2050/4878] FROMLIST: KVM: arm64: pkvm: Fix hyp_pool max order

The EL2 page allocator in protected mode maintains a per-pool max order
value to optimize allocations when the memory region it covers is small.
However, the max order value is currently under-estimated whenever the
number of pages in the region is a power of two. Fix the estimation.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211208152300.2478542-2-qperret@google.com
Bug: 209580772
Change-Id: Ibb149a33cad785c777032a4d129004f619d88653
---
 arch/arm64/kvm/hyp/nvhe/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index 0bd7701ad1df5..543cad6c376a2 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -241,7 +241,7 @@ int hyp_pool_init(struct hyp_pool *pool, u64 pfn, unsigned int nr_pages,
 	int i;
 
 	hyp_spin_lock_init(&pool->lock);
-	pool->max_order = min(MAX_ORDER, get_order(nr_pages << PAGE_SHIFT));
+	pool->max_order = min(MAX_ORDER, get_order((nr_pages + 1) << PAGE_SHIFT));
 	for (i = 0; i < pool->max_order; i++)
 		INIT_LIST_HEAD(&pool->free_area[i]);
 	pool->range_start = phys;
-- 
GitLab


From 695573928a1d89303669e37010fe80782711d50c Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 8 Dec 2021 15:22:55 +0000
Subject: [PATCH 2051/4878] FROMLIST: KVM: arm64: pkvm: Disable GICv2 support

GICv2 requires having device mappings in guests and the hypervisor,
which is incompatible with the current pKVM EL2 page ownership model
which only covers memory. While it would be desirable to support pKVM
with GICv2, this will require a lot more work, so let's make the
current assumption clear until then.

Co-developed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211208152300.2478542-3-qperret@google.com
Bug: 209580772
Change-Id: I0c507b698e7cefc389e1a49ed6b15cf59d9daaa7
---
 arch/arm64/kvm/vgic/vgic-v2.c | 5 +++++
 arch/arm64/kvm/vgic/vgic-v3.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/vgic/vgic-v2.c b/arch/arm64/kvm/vgic/vgic-v2.c
index 95a18cec14a35..8e337a0d78178 100644
--- a/arch/arm64/kvm/vgic/vgic-v2.c
+++ b/arch/arm64/kvm/vgic/vgic-v2.c
@@ -345,6 +345,11 @@ int vgic_v2_probe(const struct gic_kvm_info *info)
 	int ret;
 	u32 vtr;
 
+	if (is_protected_kvm_enabled()) {
+		kvm_err("GICv2 not supported in protected mode\n");
+		return -ENXIO;
+	}
+
 	if (!info->vctrl.start) {
 		kvm_err("GICH not present in the firmware table\n");
 		return -ENXIO;
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 04f62c4b07fb5..debad4e6e6c90 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -651,7 +651,7 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
 	} else if (!PAGE_ALIGNED(info->vcpu.start)) {
 		pr_warn("GICV physical address 0x%llx not page aligned\n",
 			(unsigned long long)info->vcpu.start);
-	} else {
+	} else if (kvm_get_mode() != KVM_MODE_PROTECTED) {
 		kvm_vgic_global_state.vcpu_base = info->vcpu.start;
 		kvm_vgic_global_state.can_emulate_gicv2 = true;
 		ret = kvm_register_vgic_device(KVM_DEV_TYPE_ARM_VGIC_V2);
-- 
GitLab


From 2e433f3894bbb678e79d6701f0891d2bac007fa9 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 8 Dec 2021 15:22:56 +0000
Subject: [PATCH 2052/4878] FROMLIST: KVM: arm64: Make the hyp memory pool
 static

The hyp memory pool struct is sized to fit exactly the needs of the
hypervisor stage-1 page-table allocator, so it is important it is not
used for anything else. As it is currently used only from setup.c,
reduce its visibility by marking it static.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211208152300.2478542-4-qperret@google.com
Bug: 209580772
Change-Id: I5079221a3a5125ba85b837996aa64f098636d4cc
---
 arch/arm64/kvm/hyp/include/nvhe/mm.h | 1 -
 arch/arm64/kvm/hyp/nvhe/setup.c      | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h
index ef6a58a042352..3f60d6cc53683 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h
@@ -12,7 +12,6 @@
 
 extern struct kvm_pgtable pkvm_pgtable;
 extern hyp_spinlock_t pkvm_pgd_lock;
-extern struct hyp_pool hpool;
 extern u64 __io_map_base;
 
 int hyp_create_idmap(u32 hyp_va_bits);
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 7da0239d6aef7..0f58e7ea6610b 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -18,7 +18,6 @@
 #include <nvhe/mm.h>
 #include <nvhe/trap_handler.h>
 
-struct hyp_pool hpool;
 unsigned long hyp_nr_cpus;
 
 #define hyp_percpu_size ((unsigned long)__per_cpu_end - \
@@ -28,6 +27,7 @@ static void *vmemmap_base;
 static void *hyp_pgt_base;
 static void *host_s2_pgt_base;
 static struct kvm_pgtable_mm_ops pkvm_pgtable_mm_ops;
+static struct hyp_pool hpool;
 
 static int divide_memory_pool(void *virt, unsigned long size)
 {
-- 
GitLab


From f5c76009e287a8355d9431d253b82618d3bc1837 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 8 Dec 2021 15:22:57 +0000
Subject: [PATCH 2053/4878] FROMLIST: KVM: arm64: Make __io_map_base static

The __io_map_base variable is used at EL2 to track the end of the
hypervisor's "private" VA range in nVHE protected mode. However it
doesn't need to be used outside of mm.c, so let's make it static to keep
all the hyp VA allocation logic in one place.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211208152300.2478542-5-qperret@google.com
Bug: 209580772
Change-Id: I0aac3451fdeddbc193d127ed38c3c998636d11b9
---
 arch/arm64/kvm/hyp/include/nvhe/mm.h | 1 -
 arch/arm64/kvm/hyp/nvhe/mm.c         | 3 ++-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h
index 3f60d6cc53683..2d08510c6cc1b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h
@@ -12,7 +12,6 @@
 
 extern struct kvm_pgtable pkvm_pgtable;
 extern hyp_spinlock_t pkvm_pgd_lock;
-extern u64 __io_map_base;
 
 int hyp_create_idmap(u32 hyp_va_bits);
 int hyp_map_vectors(void);
diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 9e0ff5a700ddd..526a7d6fa86fb 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -19,11 +19,12 @@
 
 struct kvm_pgtable pkvm_pgtable;
 hyp_spinlock_t pkvm_pgd_lock;
-u64 __io_map_base;
 
 struct memblock_region hyp_memory[HYP_MEMBLOCK_REGIONS];
 unsigned int hyp_memblock_nr;
 
+static u64 __io_map_base;
+
 static int __pkvm_create_mappings(unsigned long start, unsigned long size,
 				  unsigned long phys, enum kvm_pgtable_prot prot)
 {
-- 
GitLab


From 428452cb60302088450be5f4b762947133b4d526 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 8 Dec 2021 15:22:58 +0000
Subject: [PATCH 2054/4878] FROMLIST: KVM: arm64: pkvm: Stub io map functions

Now that GICv2 is disabled in nVHE protected mode there should be no
other reason for the host to use create_hyp_io_mappings() or
kvm_phys_addr_ioremap(). Add sanity checks to make sure that assumption
remains true looking forward.

Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20211208152300.2478542-6-qperret@google.com
Bug: 209580772
Change-Id: I371533976ce9ffdbf6b0eff986680d34d3153b86
---
 arch/arm64/kvm/mmu.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index a5d213437110e..055094a3cd8d7 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -525,6 +525,9 @@ int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 	unsigned long addr;
 	int ret;
 
+	if (is_protected_kvm_enabled())
+		return -EPERM;
+
 	*kaddr = ioremap(phys_addr, size);
 	if (!*kaddr)
 		return -ENOMEM;
@@ -768,6 +771,9 @@ int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
 				     KVM_PGTABLE_PROT_R |
 				     (writable ? KVM_PGTABLE_PROT_W : 0);
 
+	if (is_protected_kvm_enabled())
+		return -EPERM;
+
 	size += offset_in_page(guest_ipa);
 	guest_ipa &= PAGE_MASK;
 
-- 
GitLab


From c330de946f3e476a623a025f5ea35558167270ad Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 8 Dec 2021 15:59:16 +0000
Subject: [PATCH 2055/4878] FROMLIST: irqchip/gic-v3-its: Mark some in-memory
 data structures as 'decrypted'

The GICv3 ITS driver allocates memory for its tables using alloc_pages()
and performs explicit cache maintenance if necessary. On systems such
as those running pKVM, where the memory encryption API is implemented,
memory shared with the ITS must first be transitioned to the "decrypted"
state, as it would be if allocated via the DMA API.

Allow pKVM guests to interact with an ITS emulation by ensuring that the
shared pages are decrypted at the point of allocation and encrypted
again upon free().

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20211208155916.681-1-will@kernel.org
Bug: 209580772
Change-Id: I89820c65769a07306fd3e067d7d33c938d156820
Signed-off-by: Quentin Perret <qperret@google.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 40 ++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 7 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 24f87ec604ee4..a9692d4addfb0 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -27,6 +27,7 @@
 #include <linux/of_pci.h>
 #include <linux/of_platform.h>
 #include <linux/percpu.h>
+#include <linux/set_memory.h>
 #include <linux/slab.h>
 #include <linux/syscore_ops.h>
 
@@ -2166,6 +2167,7 @@ static void gic_reset_prop_table(void *va)
 
 	/* Make sure the GIC will observe the written configuration */
 	gic_flush_dcache_to_poc(va, LPI_PROPBASE_SZ);
+	set_memory_decrypted((unsigned long)va, LPI_PROPBASE_SZ >> PAGE_SHIFT);
 }
 
 static struct page *its_allocate_prop_table(gfp_t gfp_flags)
@@ -2183,8 +2185,10 @@ static struct page *its_allocate_prop_table(gfp_t gfp_flags)
 
 static void its_free_prop_table(struct page *prop_page)
 {
-	free_pages((unsigned long)page_address(prop_page),
-		   get_order(LPI_PROPBASE_SZ));
+	unsigned long va = (unsigned long)page_address(prop_page);
+
+	set_memory_encrypted(va, LPI_PROPBASE_SZ >> PAGE_SHIFT);
+	free_pages(va, get_order(LPI_PROPBASE_SZ));
 }
 
 static bool gic_check_reserved_range(phys_addr_t addr, unsigned long size)
@@ -2377,6 +2381,8 @@ retry_baser:
 		return -ENXIO;
 	}
 
+	set_memory_decrypted((unsigned long)base,
+			     PAGE_ORDER_TO_SIZE(order) >> PAGE_SHIFT);
 	baser->order = order;
 	baser->base = base;
 	baser->psz = psz;
@@ -2512,8 +2518,12 @@ static void its_free_tables(struct its_node *its)
 
 	for (i = 0; i < GITS_BASER_NR_REGS; i++) {
 		if (its->tables[i].base) {
-			free_pages((unsigned long)its->tables[i].base,
-				   its->tables[i].order);
+			unsigned long base = (unsigned long)its->tables[i].base;
+			u32 order = its->tables[i].order;
+			u32 npages = PAGE_ORDER_TO_SIZE(order) >> PAGE_SHIFT;
+
+			set_memory_encrypted(base, npages);
+			free_pages(base, order);
 			its->tables[i].base = NULL;
 		}
 	}
@@ -2934,6 +2944,7 @@ static int its_alloc_collections(struct its_node *its)
 static struct page *its_allocate_pending_table(gfp_t gfp_flags)
 {
 	struct page *pend_page;
+	void *va;
 
 	pend_page = alloc_pages(gfp_flags | __GFP_ZERO,
 				get_order(LPI_PENDBASE_SZ));
@@ -2941,14 +2952,19 @@ static struct page *its_allocate_pending_table(gfp_t gfp_flags)
 		return NULL;
 
 	/* Make sure the GIC will observe the zero-ed page */
-	gic_flush_dcache_to_poc(page_address(pend_page), LPI_PENDBASE_SZ);
+	va = page_address(pend_page);
+	gic_flush_dcache_to_poc(va, LPI_PENDBASE_SZ);
+	set_memory_decrypted((unsigned long)va, LPI_PENDBASE_SZ >> PAGE_SHIFT);
 
 	return pend_page;
 }
 
 static void its_free_pending_table(struct page *pt)
 {
-	free_pages((unsigned long)page_address(pt), get_order(LPI_PENDBASE_SZ));
+	unsigned long va = (unsigned long)page_address(pt);
+
+	set_memory_encrypted(va, LPI_PENDBASE_SZ >> PAGE_SHIFT);
+	free_pages(va, get_order(LPI_PENDBASE_SZ));
 }
 
 /*
@@ -3268,14 +3284,20 @@ static bool its_alloc_table_entry(struct its_node *its,
 
 	/* Allocate memory for 2nd level table */
 	if (!table[idx]) {
+		void *l2addr;
+
 		page = alloc_pages_node(its->numa_node, GFP_KERNEL | __GFP_ZERO,
 					get_order(baser->psz));
 		if (!page)
 			return false;
 
+		l2addr = page_address(page);
+		set_memory_decrypted((unsigned long)l2addr,
+				     baser->psz >> PAGE_SHIFT);
+
 		/* Flush Lvl2 table to PoC if hw doesn't support coherency */
 		if (!(baser->val & GITS_BASER_SHAREABILITY_MASK))
-			gic_flush_dcache_to_poc(page_address(page), baser->psz);
+			gic_flush_dcache_to_poc(l2addr, baser->psz);
 
 		table[idx] = cpu_to_le64(page_to_phys(page) | GITS_BASER_VALID);
 
@@ -5042,6 +5064,8 @@ static int __init its_probe_one(struct resource *res,
 	its->fwnode_handle = handle;
 	its->get_msi_base = its_irq_get_msi_base;
 	its->msi_domain_flags = IRQ_DOMAIN_FLAG_MSI_REMAP;
+	set_memory_decrypted((unsigned long)its->cmd_base,
+			     ITS_CMD_QUEUE_SZ >> PAGE_SHIFT);
 
 	its_enable_quirks(its);
 
@@ -5098,6 +5122,8 @@ static int __init its_probe_one(struct resource *res,
 out_free_tables:
 	its_free_tables(its);
 out_free_cmd:
+	set_memory_encrypted((unsigned long)its->cmd_base,
+			     ITS_CMD_QUEUE_SZ >> PAGE_SHIFT);
 	free_pages((unsigned long)its->cmd_base, get_order(ITS_CMD_QUEUE_SZ));
 out_unmap_sgir:
 	if (its->sgir_base)
-- 
GitLab


From 5f3ca8858f9bf3c38ab2a1d6dad054c8ace230eb Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 8 Dec 2021 19:32:56 +0000
Subject: [PATCH 2056/4878] FROMLIST: KVM: arm64: Fix comment for
 kvm_reset_vcpu()

The comment for kvm_reset_vcpu() refers to the sysreg table as
being the table above, probably because of the code extracted at
commit f4672752c321ea36 ("arm64: KVM: virtual CPU reset").

Fix the comment to remove the potentially confusing reference.

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211208193257.667613-2-tabba@google.com
Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Id1a3c02a5522990a53d92055f7bac826c3491f12
---
 arch/arm64/kvm/reset.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 12a658cbed327..750ad7d8fb7b1 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -208,10 +208,9 @@ static bool vcpu_allowed_register_width(struct kvm_vcpu *vcpu)
  * kvm_reset_vcpu - sets core registers and sys_regs to reset value
  * @vcpu: The VCPU pointer
  *
- * This function finds the right table above and sets the registers on
- * the virtual CPU struct to their architecturally defined reset
- * values, except for registers whose reset is deferred until
- * kvm_arm_vcpu_finalize().
+ * This function sets the registers on the virtual CPU struct to their
+ * architecturally defined reset values, except for registers whose reset is
+ * deferred until kvm_arm_vcpu_finalize().
  *
  * Note: This function can be called from two paths: The KVM_ARM_VCPU_INIT
  * ioctl or as part of handling a request issued by another VCPU in the PSCI
-- 
GitLab


From ac233f38935a59f7fbc1d19d5bac4a1d44e00eea Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 8 Dec 2021 19:32:57 +0000
Subject: [PATCH 2057/4878] FROMLIST: KVM: arm64: Fix comment on barrier in
 kvm_psci_vcpu_on()

The barrier is there for power_off rather than power_state.
Probably typo in commit 358b28f09f0ab074 ("arm/arm64: KVM: Allow
a VCPU to fully reset itself").

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211208193257.667613-3-tabba@google.com
Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I055d206de6a01f0ea97fb624e3647472b76f0620
---
 arch/arm64/kvm/psci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 74c47d4202534..9b82d6878aac8 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -109,7 +109,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
 
 	/*
 	 * Make sure the reset request is observed if the change to
-	 * power_state is observed.
+	 * power_off is observed.
 	 */
 	smp_wmb();
 
-- 
GitLab


From e8a81778fed900c5b4c75cffffa149391f7733b2 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 8 Dec 2021 19:28:10 +0000
Subject: [PATCH 2058/4878] FROMLIST: KVM: arm64: Use defined value for
 SCTLR_ELx_EE

Replace the hardcoded value with the existing definition.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20211208192810.657360-1-tabba@google.com
Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I80b23293060ff773bbb1ff8da5d36bfc3b517936
---
 arch/arm64/include/asm/kvm_emulate.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index f4871e47b2d0b..cd5fd9b92b043 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -386,7 +386,7 @@ static inline void kvm_vcpu_set_be(struct kvm_vcpu *vcpu)
 		*vcpu_cpsr(vcpu) |= PSR_AA32_E_BIT;
 	} else {
 		u64 sctlr = vcpu_read_sys_reg(vcpu, SCTLR_EL1);
-		sctlr |= (1 << 25);
+		sctlr |= SCTLR_ELx_EE;
 		vcpu_write_sys_reg(vcpu, sctlr, SCTLR_EL1);
 	}
 }
-- 
GitLab


From f1f505f3b4c5d7159c9dbd4c87a80dc3b1b46992 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgg@nvidia.com>
Date: Mon, 14 Dec 2020 19:05:48 -0800
Subject: [PATCH 2059/4878] UPSTREAM: mm/gup: remove the vma allocation from
 gup_longterm_locked()

Long ago there wasn't a FOLL_LONGTERM flag so this DAX check was done by
post-processing the VMA list.

These days it is trivial to just check each VMA to see if it is DAX before
processing it inside __get_user_pages() and return failure if a DAX VMA is
encountered with FOLL_LONGTERM.

Removing the allocation of the VMA list is a significant speed up for many
call sites.

Add an IS_ENABLED to vma_is_fsdax so that code generation is unchanged
when DAX is compiled out.

Remove the dummy version of __gup_longterm_locked() as !CONFIG_CMA already
makes memalloc_nocma_save(), check_and_migrate_cma_pages(), and
memalloc_nocma_restore() into a NOP.

Bug: 209719897
Link: https://lkml.kernel.org/r/0-v1-5551df3ed12e+b8-gup_dax_speedup_jgg@nvidia.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Minchan Kim <minchan@google.com>
(cherry picked from commit 52650c8b466bac399aec213c61d74bfe6f7af1a4)
Change-Id: I8be099dc7b617916254c2650ff8a55a6b926a32e
(cherry picked from commit 78ea29e5703b8d155a33bb7229d703a1ed50fab4)
---
 include/linux/fs.h |  2 +-
 mm/gup.c           | 83 +++++++++-------------------------------------
 2 files changed, 16 insertions(+), 69 deletions(-)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index bee53f02348e1..4019e6fa3b95b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3287,7 +3287,7 @@ static inline bool vma_is_fsdax(struct vm_area_struct *vma)
 {
 	struct inode *inode;
 
-	if (!vma->vm_file)
+	if (!IS_ENABLED(CONFIG_FS_DAX) || !vma->vm_file)
 		return false;
 	if (!vma_is_dax(vma))
 		return false;
diff --git a/mm/gup.c b/mm/gup.c
index b56d9748a1028..54b0a694712e2 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -948,6 +948,9 @@ static int check_vma_flags(struct vm_area_struct *vma, unsigned long gup_flags)
 	if (gup_flags & FOLL_ANON && !vma_is_anonymous(vma))
 		return -EFAULT;
 
+	if ((gup_flags & FOLL_LONGTERM) && vma_is_fsdax(vma))
+		return -EOPNOTSUPP;
+
 	if (write) {
 		if (!(vm_flags & VM_WRITE)) {
 			if (!(gup_flags & FOLL_FORCE))
@@ -1085,10 +1088,14 @@ static long __get_user_pages(struct mm_struct *mm,
 				goto next_page;
 			}
 
-			if (!vma || check_vma_flags(vma, gup_flags)) {
+			if (!vma) {
 				ret = -EFAULT;
 				goto out;
 			}
+			ret = check_vma_flags(vma, gup_flags);
+			if (ret)
+				goto out;
+
 			if (is_vm_hugetlb_page(vma)) {
 				i = follow_hugetlb_page(mm, vma, pages, vmas,
 						&start, &nr_pages, i,
@@ -1592,26 +1599,6 @@ struct page *get_dump_page(unsigned long addr)
 }
 #endif /* CONFIG_ELF_CORE */
 
-#if defined(CONFIG_FS_DAX) || defined (CONFIG_CMA)
-static bool check_dax_vmas(struct vm_area_struct **vmas, long nr_pages)
-{
-	long i;
-	struct vm_area_struct *vma_prev = NULL;
-
-	for (i = 0; i < nr_pages; i++) {
-		struct vm_area_struct *vma = vmas[i];
-
-		if (vma == vma_prev)
-			continue;
-
-		vma_prev = vma;
-
-		if (vma_is_fsdax(vma))
-			return true;
-	}
-	return false;
-}
-
 #ifdef CONFIG_CMA
 static long check_and_migrate_cma_pages(struct mm_struct *mm,
 					unsigned long start,
@@ -1730,63 +1717,23 @@ static long __gup_longterm_locked(struct mm_struct *mm,
 				  struct vm_area_struct **vmas,
 				  unsigned int gup_flags)
 {
-	struct vm_area_struct **vmas_tmp = vmas;
 	unsigned long flags = 0;
-	long rc, i;
-
-	if (gup_flags & FOLL_LONGTERM) {
-		if (!pages)
-			return -EINVAL;
+	long rc;
 
-		if (!vmas_tmp) {
-			vmas_tmp = kcalloc(nr_pages,
-					   sizeof(struct vm_area_struct *),
-					   GFP_KERNEL);
-			if (!vmas_tmp)
-				return -ENOMEM;
-		}
+	if (gup_flags & FOLL_LONGTERM)
 		flags = memalloc_nocma_save();
-	}
 
-	rc = __get_user_pages_locked(mm, start, nr_pages, pages,
-				     vmas_tmp, NULL, gup_flags);
+	rc = __get_user_pages_locked(mm, start, nr_pages, pages, vmas, NULL,
+				     gup_flags);
 
 	if (gup_flags & FOLL_LONGTERM) {
-		if (rc < 0)
-			goto out;
-
-		if (check_dax_vmas(vmas_tmp, rc)) {
-			if (gup_flags & FOLL_PIN)
-				unpin_user_pages(pages, rc);
-			else
-				for (i = 0; i < rc; i++)
-					put_page(pages[i]);
-			rc = -EOPNOTSUPP;
-			goto out;
-		}
-
-		rc = check_and_migrate_cma_pages(mm, start, rc, pages,
-						 vmas_tmp, gup_flags);
-out:
+		if (rc > 0)
+			rc = check_and_migrate_cma_pages(mm, start, rc, pages,
+							 vmas, gup_flags);
 		memalloc_nocma_restore(flags);
 	}
-
-	if (vmas_tmp != vmas)
-		kfree(vmas_tmp);
 	return rc;
 }
-#else /* !CONFIG_FS_DAX && !CONFIG_CMA */
-static __always_inline long __gup_longterm_locked(struct mm_struct *mm,
-						  unsigned long start,
-						  unsigned long nr_pages,
-						  struct page **pages,
-						  struct vm_area_struct **vmas,
-						  unsigned int flags)
-{
-	return __get_user_pages_locked(mm, start, nr_pages, pages, vmas,
-				       NULL, flags);
-}
-#endif /* CONFIG_FS_DAX || CONFIG_CMA */
 
 static bool is_valid_gup_flags(unsigned int gup_flags)
 {
-- 
GitLab


From 12a745bf83fdd589f9c8ac5bb95696fc276e6318 Mon Sep 17 00:00:00 2001
From: Mike Tipton <quic_mdtipton@quicinc.com>
Date: Mon, 8 Nov 2021 20:34:38 -0800
Subject: [PATCH 2060/4878] FROMGIT: clk: Don't parent clks until the parent is
 fully registered

Before commit fc0c209c147f ("clk: Allow parents to be specified without
string names") child clks couldn't find their parent until the parent
clk was added to a list in __clk_core_init(). After that commit, child
clks can reference their parent clks directly via a clk_hw pointer, or
they can lookup that clk_hw pointer via DT if the parent clk is
registered with an OF clk provider.

The common clk framework treats hw->core being non-NULL as "the clk is
registered" per the logic within clk_core_fill_parent_index():

	parent = entry->hw->core;
	/*
	 * We have a direct reference but it isn't registered yet?
	 * Orphan it and let clk_reparent() update the orphan status
	 * when the parent is registered.
	 */
	if (!parent)

Therefore we need to be extra careful to not set hw->core until the clk
is fully registered with the clk framework. Otherwise we can get into a
situation where a child finds a parent clk and we move the child clk off
the orphan list when the parent isn't actually registered, wrecking our
enable accounting and breaking critical clks.

Consider the following scenario:

  CPU0                                     CPU1
  ----                                     ----
  struct clk_hw clkBad;
  struct clk_hw clkA;

  clkA.init.parent_hws = { &clkBad };

  clk_hw_register(&clkA)                   clk_hw_register(&clkBad)
   ...                                      __clk_register()
					     hw->core = core
					     ...
   __clk_register()
    __clk_core_init()
     clk_prepare_lock()
     __clk_init_parent()
      clk_core_get_parent_by_index()
       clk_core_fill_parent_index()
        if (entry->hw) {
	 parent = entry->hw->core;

At this point, 'parent' points to clkBad even though clkBad hasn't been
fully registered yet. Ouch! A similar problem can happen if a clk
controller registers orphan clks that are referenced in the DT node of
another clk controller.

Let's fix all this by only setting the hw->core pointer underneath the
clk prepare lock in __clk_core_init(). This way we know that
clk_core_fill_parent_index() can't see hw->core be non-NULL until the
clk is fully registered.

Fixes: fc0c209c147f ("clk: Allow parents to be specified without string names")
Signed-off-by: Mike Tipton <quic_mdtipton@quicinc.com>
Link: https://lore.kernel.org/r/20211109043438.4639-1-quic_mdtipton@quicinc.com
[sboyd@kernel.org: Reword commit text, update comment]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Bug: 208605820
(cherry picked from commit 54baf56eaa40aa5cdcd02b3c20d593e4e1211220
 https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next)
Change-Id: Iee7ea8a1ba3a95a4985c2e689bcc4484c33153f1
Signed-off-by: Mike Tipton <quic_mdtipton@quicinc.com>
---
 drivers/clk/clk.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index f047d33d765c1..411ca7a1c0882 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3469,6 +3469,14 @@ static int __clk_core_init(struct clk_core *core)
 
 	clk_prepare_lock();
 
+	/*
+	 * Set hw->core after grabbing the prepare_lock to synchronize with
+	 * callers of clk_core_fill_parent_index() where we treat hw->core
+	 * being NULL as the clk not being registered yet. This is crucial so
+	 * that clks aren't parented until their parent is fully registered.
+	 */
+	core->hw->core = core;
+
 	ret = clk_pm_runtime_get(core);
 	if (ret)
 		goto unlock;
@@ -3640,8 +3648,10 @@ static int __clk_core_init(struct clk_core *core)
 out:
 	clk_pm_runtime_put(core);
 unlock:
-	if (ret)
+	if (ret) {
 		hlist_del_init(&core->child_node);
+		core->hw->core = NULL;
+	}
 
 	clk_prepare_unlock();
 
@@ -3905,7 +3915,6 @@ __clk_register(struct device *dev, struct device_node *np, struct clk_hw *hw)
 	core->num_parents = init->num_parents;
 	core->min_rate = 0;
 	core->max_rate = ULONG_MAX;
-	hw->core = core;
 
 	ret = clk_core_populate_parent_map(core, init);
 	if (ret)
@@ -3923,7 +3932,7 @@ __clk_register(struct device *dev, struct device_node *np, struct clk_hw *hw)
 		goto fail_create_clk;
 	}
 
-	clk_core_link_consumer(hw->core, hw->clk);
+	clk_core_link_consumer(core, hw->clk);
 
 	ret = __clk_core_init(core);
 	if (!ret)
-- 
GitLab


From 88389e813f6995ef25f01f646dca774e0a2120b5 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Tue, 7 Dec 2021 10:58:22 -0800
Subject: [PATCH 2061/4878] ANDROID: clang: update to 14.0.0

Bug: 202986547
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I6c32124aa77b256f5b8760e8054607ae8a46197f
---
 build.config.common | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.common b/build.config.common
index 2d2f281865b01..73e50cb588c7b 100644
--- a/build.config.common
+++ b/build.config.common
@@ -3,7 +3,7 @@ KMI_GENERATION=0
 
 LLVM=1
 DEPMOD=depmod
-CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-r433403/bin
+CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-r437112/bin
 BUILDTOOLS_PREBUILT_BIN=build/build-tools/path/linux-x86
 DTC=${ROOT_DIR}/${BUILDTOOLS_PREBUILT_BIN}/dtc
 
-- 
GitLab


From cfcf226fdad1be705f5fa028f6af5eb80e5c4d37 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:35 -0800
Subject: [PATCH 2062/4878] FROMGIT: scsi: ufs: Rename a function argument

The new name makes it clear what the meaning of the function argument is.

Link: https://lore.kernel.org/r/20211203231950.193369-3-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit b427609e11ee98b88e745f9fe17aae437b2e2d80 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I84338bfad20a24cb6e844507116e72fe5116df24
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-exynos.c | 4 ++--
 drivers/scsi/ufs/ufshcd.h     | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index cd26bc82462ed..474a4a064a68d 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -853,14 +853,14 @@ static int exynos_ufs_post_pwr_mode(struct ufs_hba *hba,
 }
 
 static void exynos_ufs_specify_nexus_t_xfer_req(struct ufs_hba *hba,
-						int tag, bool op)
+						int tag, bool is_scsi_cmd)
 {
 	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
 	u32 type;
 
 	type =  hci_readl(ufs, HCI_UTRL_NEXUS_TYPE);
 
-	if (op)
+	if (is_scsi_cmd)
 		hci_writel(ufs, type | (1 << tag), HCI_UTRL_NEXUS_TYPE);
 	else
 		hci_writel(ufs, type & ~(1 << tag), HCI_UTRL_NEXUS_TYPE);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index dd03d1837f959..4554befa6b1e0 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -341,7 +341,8 @@ struct ufs_hba_variant_ops {
 					enum ufs_notify_change_status status,
 					struct ufs_pa_layer_attr *,
 					struct ufs_pa_layer_attr *);
-	void	(*setup_xfer_req)(struct ufs_hba *, int, bool);
+	void	(*setup_xfer_req)(struct ufs_hba *hba, int tag,
+				  bool is_scsi_cmd);
 	void	(*setup_task_mgmt)(struct ufs_hba *, int, u8);
 	void    (*hibern8_notify)(struct ufs_hba *, enum uic_cmd_dme,
 					enum ufs_notify_change_status);
-- 
GitLab


From 475c91d6c8ac94b82aec9af7f40fe07eba2b9d11 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:36 -0800
Subject: [PATCH 2063/4878] FROMGIT: scsi: ufs: Remove is_rpmb_wlun()

Commit edc0596cc04b ("scsi: ufs: core: Stop clearing UNIT ATTENTIONS")
removed all callers of is_rpmb_wlun(). Hence also remove the function
itself.

Link: https://lore.kernel.org/r/20211203231950.193369-4-bvanassche@acm.org
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit d656dc9b0b79e868e46ff78b6ca7a6a70df23566 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I1c4cca0645db743c9c3af0acf0f8cca83681fae1
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3c5b7ea481007..c3e4dd9b971f8 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2677,11 +2677,6 @@ static inline u16 ufshcd_upiu_wlun_to_scsi_wlun(u8 upiu_wlun_id)
 	return (upiu_wlun_id & ~UFS_UPIU_WLUN_ID) | SCSI_W_LUN_BASE;
 }
 
-static inline bool is_rpmb_wlun(struct scsi_device *sdev)
-{
-	return sdev->lun == ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_RPMB_WLUN);
-}
-
 static inline bool is_device_wlun(struct scsi_device *sdev)
 {
 	return sdev->lun ==
-- 
GitLab


From 968af1dd93db6ea3f903faaf2ca441c8b91a0a6e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:37 -0800
Subject: [PATCH 2064/4878] FROMGIT: scsi: ufs: Remove the sdev_rpmb member

Since the sdev_rpmb member of struct ufs_hba is only used inside
ufshcd_scsi_add_wlus(), convert it into a local variable.

Link: https://lore.kernel.org/r/20211203231950.193369-5-bvanassche@acm.org
Suggested-by: Jaegeuk Kim <jaegeuk@kernel.org>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 59830c095cf01978d71a25ba1f8660f23f8312c7 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I32b1e9b7e4c517113a2836eba544a94c67223579
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 12 ++++++------
 drivers/scsi/ufs/ufshcd.h |  1 -
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c3e4dd9b971f8..dc81a4654fc60 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7447,7 +7447,7 @@ static inline void ufshcd_blk_pm_runtime_init(struct scsi_device *sdev)
 static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
 {
 	int ret = 0;
-	struct scsi_device *sdev_boot;
+	struct scsi_device *sdev_boot, *sdev_rpmb;
 
 	hba->sdev_ufs_device = __scsi_add_device(hba->host, 0, 0,
 		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_UFS_DEVICE_WLUN), NULL);
@@ -7458,14 +7458,14 @@ static int ufshcd_scsi_add_wlus(struct ufs_hba *hba)
 	}
 	scsi_device_put(hba->sdev_ufs_device);
 
-	hba->sdev_rpmb = __scsi_add_device(hba->host, 0, 0,
+	sdev_rpmb = __scsi_add_device(hba->host, 0, 0,
 		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_RPMB_WLUN), NULL);
-	if (IS_ERR(hba->sdev_rpmb)) {
-		ret = PTR_ERR(hba->sdev_rpmb);
+	if (IS_ERR(sdev_rpmb)) {
+		ret = PTR_ERR(sdev_rpmb);
 		goto remove_sdev_ufs_device;
 	}
-	ufshcd_blk_pm_runtime_init(hba->sdev_rpmb);
-	scsi_device_put(hba->sdev_rpmb);
+	ufshcd_blk_pm_runtime_init(sdev_rpmb);
+	scsi_device_put(sdev_rpmb);
 
 	sdev_boot = __scsi_add_device(hba->host, 0, 0,
 		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_BOOT_WLUN), NULL);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 4554befa6b1e0..76058a8dfb9e9 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -845,7 +845,6 @@ struct ufs_hba {
 	 * "UFS device" W-LU.
 	 */
 	struct scsi_device *sdev_ufs_device;
-	struct scsi_device *sdev_rpmb;
 
 #ifdef CONFIG_SCSI_UFS_HWMON
 	struct device *hwmon_device;
-- 
GitLab


From f531b624a6908ad64ff7ca749d528183adbcfcd6 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:39 -0800
Subject: [PATCH 2065/4878] FROMGIT: scsi: ufs: Fix race conditions related to
 driver data

The driver data pointer must be set before any callbacks are registered
that use that pointer. Hence move the initialization of that pointer from
after the ufshcd_init() call to inside ufshcd_init().

Link: https://lore.kernel.org/r/20211203231950.193369-7-bvanassche@acm.org
Fixes: 3b1d05807a9a ("[SCSI] ufs: Segregate PCI Specific Code")
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 21ad0e49085deb22c094f91f9da57319a97188e4 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: Id924038c13cab1e203bb650cc3939ebd5acf56fe
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/tc-dwc-g210-pci.c | 1 -
 drivers/scsi/ufs/ufshcd-pci.c      | 2 --
 drivers/scsi/ufs/ufshcd-pltfrm.c   | 2 --
 drivers/scsi/ufs/ufshcd.c          | 7 +++++++
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/tc-dwc-g210-pci.c b/drivers/scsi/ufs/tc-dwc-g210-pci.c
index 679289e1a78e6..7b08e2e07cc5f 100644
--- a/drivers/scsi/ufs/tc-dwc-g210-pci.c
+++ b/drivers/scsi/ufs/tc-dwc-g210-pci.c
@@ -110,7 +110,6 @@ tc_dwc_g210_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return err;
 	}
 
-	pci_set_drvdata(pdev, hba);
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_allow(&pdev->dev);
 
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index 51424557810da..a673eedb2f059 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -522,8 +522,6 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return err;
 	}
 
-	pci_set_drvdata(pdev, hba);
-
 	hba->vops = (struct ufs_hba_variant_ops *)id->driver_data;
 
 	err = ufshcd_init(hba, mmio_base, pdev->irq);
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index eaeae83b999fd..8b16bbbcb806c 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -361,8 +361,6 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
 		goto dealloc_host;
 	}
 
-	platform_set_drvdata(pdev, hba);
-
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index dc81a4654fc60..257d0dabaf6f4 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9525,6 +9525,13 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	struct device *dev = hba->dev;
 	char eh_wq_name[sizeof("ufs_eh_wq_00")];
 
+	/*
+	 * dev_set_drvdata() must be called before any callbacks are registered
+	 * that use dev_get_drvdata() (frequency scaling, clock scaling, hwmon,
+	 * sysfs).
+	 */
+	dev_set_drvdata(dev, hba);
+
 	if (!mmio_base) {
 		dev_err(hba->dev,
 		"Invalid memory reference for mmio_base is NULL\n");
-- 
GitLab


From 9d0179eda16bb47f384a934cc16c6bca50a815d2 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:40 -0800
Subject: [PATCH 2066/4878] FROMGIT: scsi: ufs: Remove ufshcd_any_tag_in_use()

Use hba->outstanding_reqs instead of ufshcd_any_tag_in_use(). This patch
prepares for removal of the blk_mq_start_request() call from
ufshcd_wait_for_dev_cmd(). blk_mq_tagset_busy_iter() only iterates over
started requests.

Link: https://lore.kernel.org/r/20211203231950.193369-8-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit bd0b35383193d0d31a0cce3d7c7f7e4be1cc7905 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: Ib43ac46cfb8094d0727af060c90a709d5430ecac
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 257d0dabaf6f4..6cbb01b25846e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1375,25 +1375,6 @@ out:
 	return ret;
 }
 
-static bool ufshcd_is_busy(struct request *req, void *priv, bool reserved)
-{
-	int *busy = priv;
-
-	WARN_ON_ONCE(reserved);
-	(*busy)++;
-	return false;
-}
-
-/* Whether or not any tag is in use by a request that is in progress. */
-static bool ufshcd_any_tag_in_use(struct ufs_hba *hba)
-{
-	struct request_queue *q = hba->cmd_queue;
-	int busy = 0;
-
-	blk_mq_tagset_busy_iter(q->tag_set, ufshcd_is_busy, &busy);
-	return busy;
-}
-
 static int ufshcd_devfreq_get_dev_status(struct device *dev,
 		struct devfreq_dev_status *stat)
 {
@@ -1792,7 +1773,7 @@ static void ufshcd_gate_work(struct work_struct *work)
 
 	if (hba->clk_gating.active_reqs
 		|| hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL
-		|| ufshcd_any_tag_in_use(hba) || hba->outstanding_tasks
+		|| hba->outstanding_reqs || hba->outstanding_tasks
 		|| hba->active_uic_cmd || hba->uic_async_done)
 		goto rel_lock;
 
-- 
GitLab


From d0516fa2a966b1940107a09dde05fe5d11d261dd Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 9 Dec 2021 09:31:34 -0800
Subject: [PATCH 2067/4878] ANDROID: Revert "FROMLIST: scsi: ufs: Fix a
 deadlock in the error handler"

Revert commit d56a3389b868 ("FROMLIST: scsi: ufs: Fix a deadlock in the error
handler") in preparation of switching to the FROMGIT solution.

Bug: 204438323
Change-Id: Ia9ae90af8eb99acf323d04504fa990163a4162cc
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6cbb01b25846e..ba5f8f007833a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2956,7 +2956,12 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 
 	down_read(&hba->clk_scaling_lock);
 
-	req = blk_mq_alloc_request(q, REQ_OP_DRV_OUT, BLK_MQ_REQ_RESERVED);
+	/*
+	 * Get free slot, sleep if slots are unavailable.
+	 * Even though we use wait_event() which sleeps indefinitely,
+	 * the maximum wait time is bounded by SCSI request timeout.
+	 */
+	req = blk_get_request(q, REQ_OP_DRV_OUT, 0);
 	if (IS_ERR(req)) {
 		err = PTR_ERR(req);
 		goto out_unlock;
@@ -8185,8 +8190,7 @@ static struct scsi_host_template ufshcd_driver_template = {
 	.this_id		= -1,
 	.sg_tablesize		= SG_ALL,
 	.cmd_per_lun		= UFSHCD_CMD_PER_LUN,
-	.can_queue		= UFSHCD_CAN_QUEUE - 1,
-	.reserved_tags		= 1,
+	.can_queue		= UFSHCD_CAN_QUEUE,
 	.max_segment_size	= PRDT_DATA_BYTE_COUNT_MAX,
 	.max_host_blocked	= 1,
 	.track_queue_depth	= 1,
@@ -9555,8 +9559,8 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Configure LRB */
 	ufshcd_host_memory_configure(hba);
 
-	host->can_queue = hba->nutrs - 1;
-	host->cmd_per_lun = hba->nutrs - 1;
+	host->can_queue = hba->nutrs;
+	host->cmd_per_lun = hba->nutrs;
 	host->max_id = UFSHCD_MAX_ID;
 	host->max_lun = UFS_MAX_LUNS;
 	host->max_channel = UFSHCD_MAX_CHANNEL;
-- 
GitLab


From 6c8460404d567bfcddcee3a3ab25e374bfa215f3 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:42 -0800
Subject: [PATCH 2068/4878] FROMGIT: scsi: ufs: Fix a deadlock in the error
 handler

The following deadlock has been observed on a test setup:

 - All tags allocated

 - The SCSI error handler calls ufshcd_eh_host_reset_handler()

 - ufshcd_eh_host_reset_handler() queues work that calls
   ufshcd_err_handler()

 - ufshcd_err_handler() locks up as follows:

Workqueue: ufs_eh_wq_0 ufshcd_err_handler.cfi_jt
Call trace:
 __switch_to+0x298/0x5d8
 __schedule+0x6cc/0xa94
 schedule+0x12c/0x298
 blk_mq_get_tag+0x210/0x480
 __blk_mq_alloc_request+0x1c8/0x284
 blk_get_request+0x74/0x134
 ufshcd_exec_dev_cmd+0x68/0x640
 ufshcd_verify_dev_init+0x68/0x35c
 ufshcd_probe_hba+0x12c/0x1cb8
 ufshcd_host_reset_and_restore+0x88/0x254
 ufshcd_reset_and_restore+0xd0/0x354
 ufshcd_err_handler+0x408/0xc58
 process_one_work+0x24c/0x66c
 worker_thread+0x3e8/0xa4c
 kthread+0x150/0x1b4
 ret_from_fork+0x10/0x30

Fix this lockup by making ufshcd_exec_dev_cmd() allocate a reserved
request.

Link: https://lore.kernel.org/r/20211203231950.193369-10-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 945c3cca05d78351bba29fa65d93834cb7934c7b git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: Ib8027a51cc4b7bec7ddd69719f0f7f4a6e8dfb3a
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 52 +++++++++++----------------------------
 drivers/scsi/ufs/ufshcd.h |  2 ++
 2 files changed, 16 insertions(+), 38 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index ba5f8f007833a..915fee30aaa7c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -131,8 +131,9 @@ EXPORT_SYMBOL_GPL(ufshcd_dump_regs);
 enum {
 	UFSHCD_MAX_CHANNEL	= 0,
 	UFSHCD_MAX_ID		= 1,
-	UFSHCD_CMD_PER_LUN	= 32,
-	UFSHCD_CAN_QUEUE	= 32,
+	UFSHCD_NUM_RESERVED	= 1,
+	UFSHCD_CMD_PER_LUN	= 32 - UFSHCD_NUM_RESERVED,
+	UFSHCD_CAN_QUEUE	= 32 - UFSHCD_NUM_RESERVED,
 };
 
 static const char *const ufshcd_state_name[] = {
@@ -2194,6 +2195,7 @@ static inline int ufshcd_hba_capabilities(struct ufs_hba *hba)
 	hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS) + 1;
 	hba->nutmrs =
 	((hba->capabilities & MASK_TASK_MANAGEMENT_REQUEST_SLOTS) >> 16) + 1;
+	hba->reserved_slot = hba->nutrs - 1;
 
 	/* Read crypto capabilities */
 	err = ufshcd_hba_init_crypto_capabilities(hba);
@@ -2947,30 +2949,15 @@ static int ufshcd_wait_for_dev_cmd(struct ufs_hba *hba,
 static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 		enum dev_cmd_type cmd_type, int timeout)
 {
-	struct request_queue *q = hba->cmd_queue;
 	DECLARE_COMPLETION_ONSTACK(wait);
-	struct request *req;
+	const u32 tag = hba->reserved_slot;
 	struct ufshcd_lrb *lrbp;
 	int err;
-	int tag;
 
-	down_read(&hba->clk_scaling_lock);
+	/* Protects use of hba->reserved_slot. */
+	lockdep_assert_held(&hba->dev_cmd.lock);
 
-	/*
-	 * Get free slot, sleep if slots are unavailable.
-	 * Even though we use wait_event() which sleeps indefinitely,
-	 * the maximum wait time is bounded by SCSI request timeout.
-	 */
-	req = blk_get_request(q, REQ_OP_DRV_OUT, 0);
-	if (IS_ERR(req)) {
-		err = PTR_ERR(req);
-		goto out_unlock;
-	}
-	tag = req->tag;
-	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
-	/* Set the timeout such that the SCSI error handler is not activated. */
-	req->timeout = msecs_to_jiffies(2 * timeout);
-	blk_mq_start_request(req);
+	down_read(&hba->clk_scaling_lock);
 
 	lrbp = &hba->lrb[tag];
 	WARN_ON(lrbp->cmd);
@@ -2988,8 +2975,6 @@ static int ufshcd_exec_dev_cmd(struct ufs_hba *hba,
 				    (struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
 
 out:
-	blk_put_request(req);
-out_unlock:
 	up_read(&hba->clk_scaling_lock);
 	return err;
 }
@@ -6738,23 +6723,16 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 					enum dev_cmd_type cmd_type,
 					enum query_opcode desc_op)
 {
-	struct request_queue *q = hba->cmd_queue;
 	DECLARE_COMPLETION_ONSTACK(wait);
-	struct request *req;
+	const u32 tag = hba->reserved_slot;
 	struct ufshcd_lrb *lrbp;
 	int err = 0;
-	int tag;
 	u8 upiu_flags;
 
-	down_read(&hba->clk_scaling_lock);
+	/* Protects use of hba->reserved_slot. */
+	lockdep_assert_held(&hba->dev_cmd.lock);
 
-	req = blk_get_request(q, REQ_OP_DRV_OUT, 0);
-	if (IS_ERR(req)) {
-		err = PTR_ERR(req);
-		goto out_unlock;
-	}
-	tag = req->tag;
-	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
+	down_read(&hba->clk_scaling_lock);
 
 	lrbp = &hba->lrb[tag];
 	WARN_ON(lrbp->cmd);
@@ -6823,8 +6801,6 @@ static int ufshcd_issue_devman_upiu_cmd(struct ufs_hba *hba,
 	ufshcd_add_query_upiu_trace(hba, err ? UFS_QUERY_ERR : UFS_QUERY_COMP,
 				    (struct utp_upiu_req *)lrbp->ucd_rsp_ptr);
 
-	blk_put_request(req);
-out_unlock:
 	up_read(&hba->clk_scaling_lock);
 	return err;
 }
@@ -9559,8 +9535,8 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	/* Configure LRB */
 	ufshcd_host_memory_configure(hba);
 
-	host->can_queue = hba->nutrs;
-	host->cmd_per_lun = hba->nutrs;
+	host->can_queue = hba->nutrs - UFSHCD_NUM_RESERVED;
+	host->cmd_per_lun = hba->nutrs - UFSHCD_NUM_RESERVED;
 	host->max_id = UFSHCD_MAX_ID;
 	host->max_lun = UFS_MAX_LUNS;
 	host->max_channel = UFSHCD_MAX_CHANNEL;
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 76058a8dfb9e9..315b37888352c 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -780,6 +780,7 @@ struct ufs_hba_monitor {
  * @capabilities: UFS Controller Capabilities
  * @nutrs: Transfer Request Queue depth supported by controller
  * @nutmrs: Task Management Queue depth supported by controller
+ * @reserved_slot: Used to submit device commands. Protected by @dev_cmd.lock.
  * @ufs_version: UFS Version to which controller complies
  * @vops: pointer to variant specific operations
  * @priv: pointer to variant specific private data
@@ -872,6 +873,7 @@ struct ufs_hba {
 	u32 capabilities;
 	int nutrs;
 	int nutmrs;
+	u32 reserved_slot;
 	u32 ufs_version;
 	const struct ufs_hba_variant_ops *vops;
 	struct ufs_hba_variant_params *vps;
-- 
GitLab


From 72a1395f6c3ebff1527c95d8e36a3d0388538047 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:43 -0800
Subject: [PATCH 2069/4878] FROMGIT: scsi: ufs: Remove hba->cmd_queue

The previous patch removed all code that uses hba->cmd_queue. Hence also
remove hba->cmd_queue itself.

Link: https://lore.kernel.org/r/20211203231950.193369-11-bvanassche@acm.org
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 511a083b8b6bf63f5609a4e4e3db748ab3719451 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I444a5343f779620aa82359b0dd709c5be880e6f0
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 11 +----------
 drivers/scsi/ufs/ufshcd.h |  2 --
 2 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 915fee30aaa7c..18805c151ba1e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9383,7 +9383,6 @@ void ufshcd_remove(struct ufs_hba *hba)
 	ufs_sysfs_remove_nodes(hba->dev);
 	blk_cleanup_queue(hba->tmf_queue);
 	blk_mq_free_tag_set(&hba->tmf_tag_set);
-	blk_cleanup_queue(hba->cmd_queue);
 	scsi_remove_host(hba->host);
 	/* disable interrupts */
 	ufshcd_disable_intr(hba, hba->intr_mask);
@@ -9604,12 +9603,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 		goto out_disable;
 	}
 
-	hba->cmd_queue = blk_mq_init_queue(&hba->host->tag_set);
-	if (IS_ERR(hba->cmd_queue)) {
-		err = PTR_ERR(hba->cmd_queue);
-		goto out_remove_scsi_host;
-	}
-
 	hba->tmf_tag_set = (struct blk_mq_tag_set) {
 		.nr_hw_queues	= 1,
 		.queue_depth	= hba->nutmrs,
@@ -9618,7 +9611,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	};
 	err = blk_mq_alloc_tag_set(&hba->tmf_tag_set);
 	if (err < 0)
-		goto free_cmd_queue;
+		goto out_remove_scsi_host;
 	hba->tmf_queue = blk_mq_init_queue(&hba->tmf_tag_set);
 	if (IS_ERR(hba->tmf_queue)) {
 		err = PTR_ERR(hba->tmf_queue);
@@ -9687,8 +9680,6 @@ free_tmf_queue:
 	blk_cleanup_queue(hba->tmf_queue);
 free_tmf_tag_set:
 	blk_mq_free_tag_set(&hba->tmf_tag_set);
-free_cmd_queue:
-	blk_cleanup_queue(hba->cmd_queue);
 out_remove_scsi_host:
 	scsi_remove_host(hba->host);
 out_disable:
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 315b37888352c..af97052b9f08e 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -773,7 +773,6 @@ struct ufs_hba_monitor {
  * @host: Scsi_Host instance of the driver
  * @dev: device handle
  * @lrb: local reference block
- * @cmd_queue: Used to allocate command tags from hba->host->tag_set.
  * @outstanding_tasks: Bits representing outstanding task requests
  * @outstanding_lock: Protects @outstanding_reqs.
  * @outstanding_reqs: Bits representing outstanding transfer requests
@@ -840,7 +839,6 @@ struct ufs_hba {
 
 	struct Scsi_Host *host;
 	struct device *dev;
-	struct request_queue *cmd_queue;
 	/*
 	 * This field is to keep a reference to "scsi_device" corresponding to
 	 * "UFS device" W-LU.
-- 
GitLab


From 83ecae51ea9d179cf71227e61cbd1e2ee24ec489 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:44 -0800
Subject: [PATCH 2070/4878] FROMGIT: scsi: ufs: Remove the 'update_scaling'
 local variable

This patch does not change any functionality but makes the next patch in
this series easier to read.

Link: https://lore.kernel.org/r/20211203231950.193369-12-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 3eb9dcc027e2b2bbd8f377d3ef9271b7abfe103d git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I5a420ba06517e65aa2cbabf08c2fc78de2490def
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 18805c151ba1e..6e9104bd83c1a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5268,7 +5268,6 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 	struct scsi_cmnd *cmd;
 	int result;
 	int index;
-	bool update_scaling = false;
 
 	for_each_set_bit(index, &completed_reqs, hba->nutrs) {
 		lrbp = &hba->lrb[index];
@@ -5288,7 +5287,7 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 			/* Do not touch lrbp after scsi done */
 			scsi_done(cmd);
 			ufshcd_release(hba);
-			update_scaling = true;
+			ufshcd_clk_scaling_update_busy(hba);
 		} else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||
 			lrbp->command_type == UTP_CMD_TYPE_UFS_STORAGE) {
 			if (hba->dev_cmd.complete) {
@@ -5296,11 +5295,9 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 				ufshcd_add_command_trace(hba, index,
 							 UFS_DEV_COMP);
 				complete(hba->dev_cmd.complete);
-				update_scaling = true;
+				ufshcd_clk_scaling_update_busy(hba);
 			}
 		}
-		if (update_scaling)
-			ufshcd_clk_scaling_update_busy(hba);
 	}
 }
 
-- 
GitLab


From c36f34dff6b8501734eb8fc03d2d82cc49fc3070 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:45 -0800
Subject: [PATCH 2071/4878] FROMGIT: scsi: ufs: Introduce
 ufshcd_release_scsi_cmd()

The only functional change in this patch is that scsi_done() is now called
after ufshcd_release() and ufshcd_clk_scaling_update_busy() instead of
before.

The next patch in this series will introduce a call to
ufshcd_release_scsi_cmd() in the abort handler.

Link: https://lore.kernel.org/r/20211203231950.193369-13-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 6f8dafdee6ae836763e753a9df288d10b35e9679 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: Ie9e3ef49aa10d3dc9ce43625893809b232d87d5f
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6e9104bd83c1a..4d66645d0ecab 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5256,6 +5256,19 @@ static irqreturn_t ufshcd_uic_cmd_compl(struct ufs_hba *hba, u32 intr_status)
 	return retval;
 }
 
+/* Release the resources allocated for processing a SCSI command. */
+static void ufshcd_release_scsi_cmd(struct ufs_hba *hba,
+				    struct ufshcd_lrb *lrbp)
+{
+	struct scsi_cmnd *cmd = lrbp->cmd;
+
+	scsi_dma_unmap(cmd);
+	ufshcd_crypto_clear_prdt(hba, lrbp);
+	lrbp->cmd = NULL;	/* Mark the command as completed. */
+	ufshcd_release(hba);
+	ufshcd_clk_scaling_update_busy(hba);
+}
+
 /**
  * __ufshcd_transfer_req_compl - handle SCSI and query command completion
  * @hba: per adapter instance
@@ -5266,7 +5279,6 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 {
 	struct ufshcd_lrb *lrbp;
 	struct scsi_cmnd *cmd;
-	int result;
 	int index;
 
 	for_each_set_bit(index, &completed_reqs, hba->nutrs) {
@@ -5278,16 +5290,10 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 				ufshcd_update_monitor(hba, lrbp);
 			trace_android_vh_ufs_compl_command(hba, lrbp);
 			ufshcd_add_command_trace(hba, index, UFS_CMD_COMP);
-			result = ufshcd_transfer_rsp_status(hba, lrbp);
-			scsi_dma_unmap(cmd);
-			cmd->result = result;
-			ufshcd_crypto_clear_prdt(hba, lrbp);
-			/* Mark completed command as NULL in LRB */
-			lrbp->cmd = NULL;
+			cmd->result = ufshcd_transfer_rsp_status(hba, lrbp);
+			ufshcd_release_scsi_cmd(hba, lrbp);
 			/* Do not touch lrbp after scsi done */
 			scsi_done(cmd);
-			ufshcd_release(hba);
-			ufshcd_clk_scaling_update_busy(hba);
 		} else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||
 			lrbp->command_type == UTP_CMD_TYPE_UFS_STORAGE) {
 			if (hba->dev_cmd.complete) {
-- 
GitLab


From f23e2c8fa8044a052c85343969f387a3533c1fcb Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:46 -0800
Subject: [PATCH 2072/4878] FROMGIT: scsi: ufs: Improve SCSI abort handling
 further

Release resources when aborting a command. Make sure that aborted commands
are completed once by clearing the corresponding tag bit from
hba->outstanding_reqs. This patch is an improved version of commit
3ff1f6b6ba6f ("scsi: ufs: core: Improve SCSI abort handling").

Link: https://lore.kernel.org/r/20211203231950.193369-14-bvanassche@acm.org
Fixes: 7a3e97b0dc4b ("[SCSI] ufshcd: UFS Host controller driver")
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 1fbaa02dfd05229312404aaef8bc9317b4ff8750 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: Ifdf7f016c0d1986fe905f13be8abbeb54af4bce5
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 4d66645d0ecab..d4dcc8767823b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7033,6 +7033,7 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
 	unsigned long flags;
 	int err = FAILED;
+	bool outstanding;
 	u32 reg;
 
 	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
@@ -7110,7 +7111,17 @@ static int ufshcd_abort(struct scsi_cmnd *cmd)
 		goto release;
 	}
 
-	lrbp->cmd = NULL;
+	/*
+	 * Clear the corresponding bit from outstanding_reqs since the command
+	 * has been aborted successfully.
+	 */
+	spin_lock_irqsave(&hba->outstanding_lock, flags);
+	outstanding = __test_and_clear_bit(tag, &hba->outstanding_reqs);
+	spin_unlock_irqrestore(&hba->outstanding_lock, flags);
+
+	if (outstanding)
+		ufshcd_release_scsi_cmd(hba, lrbp);
+
 	err = SUCCESS;
 
 release:
-- 
GitLab


From 330a1d16f2b13b2a754b5f63bef5c714eb95d9fe Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:47 -0800
Subject: [PATCH 2073/4878] FROMGIT: scsi: ufs: Fix a kernel crash during
 shutdown

Fix the following kernel crash:

Unable to handle kernel paging request at virtual address ffffffc91e735000
Call trace:
 __queue_work+0x26c/0x624
 queue_work_on+0x6c/0xf0
 ufshcd_hold+0x12c/0x210
 __ufshcd_wl_suspend+0xc0/0x400
 ufshcd_wl_shutdown+0xb8/0xcc
 device_shutdown+0x184/0x224
 kernel_restart+0x4c/0x124
 __arm64_sys_reboot+0x194/0x264
 el0_svc_common+0xc8/0x1d4
 do_el0_svc+0x30/0x8c
 el0_svc+0x20/0x30
 el0_sync_handler+0x84/0xe4
 el0_sync+0x1bc/0x1c0

Fix this crash by ungating the clock before destroying the work queue on
which clock gating work is queued.

Link: https://lore.kernel.org/r/20211203231950.193369-15-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 3489c34bd02b73a72646037d673a122a53cee174 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I5b2ef262356fe1ed3581e7173fd3cc69208177fc
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d4dcc8767823b..8e8d702c8258c 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1671,7 +1671,8 @@ int ufshcd_hold(struct ufs_hba *hba, bool async)
 	bool flush_result;
 	unsigned long flags;
 
-	if (!ufshcd_is_clkgating_allowed(hba))
+	if (!ufshcd_is_clkgating_allowed(hba) ||
+	    !hba->clk_gating.is_initialized)
 		goto out;
 	spin_lock_irqsave(hba->host->host_lock, flags);
 	hba->clk_gating.active_reqs++;
@@ -1831,7 +1832,7 @@ static void __ufshcd_release(struct ufs_hba *hba)
 
 	if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended ||
 	    hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL ||
-	    hba->outstanding_tasks ||
+	    hba->outstanding_tasks || !hba->clk_gating.is_initialized ||
 	    hba->active_uic_cmd || hba->uic_async_done ||
 	    hba->clk_gating.state == CLKS_OFF)
 		return;
@@ -1966,11 +1967,15 @@ static void ufshcd_exit_clk_gating(struct ufs_hba *hba)
 {
 	if (!hba->clk_gating.is_initialized)
 		return;
+
 	ufshcd_remove_clk_gating_sysfs(hba);
-	cancel_work_sync(&hba->clk_gating.ungate_work);
-	cancel_delayed_work_sync(&hba->clk_gating.gate_work);
-	destroy_workqueue(hba->clk_gating.clk_gating_workq);
+
+	/* Ungate the clock if necessary. */
+	ufshcd_hold(hba, false);
 	hba->clk_gating.is_initialized = false;
+	ufshcd_release(hba);
+
+	destroy_workqueue(hba->clk_gating.clk_gating_workq);
 }
 
 /* Must be called with host lock acquired */
-- 
GitLab


From b533233833951310494f72ef1a18c32369010b1f Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:48 -0800
Subject: [PATCH 2074/4878] FROMGIT: scsi: ufs: Stop using the clock scaling
 lock in the error handler

Instead of locking and unlocking the clock scaling lock, surround the
command queueing code with an RCU reader lock and call synchronize_rcu().
This patch prepares for removal of the clock scaling lock.

Link: https://lore.kernel.org/r/20211203231950.193369-16-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 5675c381ea51360b4968b78f23aefda73e3de90d git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I7cfeecbffcaad1cb61a096717b27816c385dae14
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8e8d702c8258c..8535deb5c3904 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2712,6 +2712,12 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	if (!down_read_trylock(&hba->clk_scaling_lock))
 		return SCSI_MLQUEUE_HOST_BUSY;
 
+	/*
+	 * Allows the UFS error handler to wait for prior ufshcd_queuecommand()
+	 * calls.
+	 */
+	rcu_read_lock();
+
 	switch (hba->ufshcd_state) {
 	case UFSHCD_STATE_OPERATIONAL:
 		break;
@@ -2797,7 +2803,10 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	}
 
 	ufshcd_send_command(hba, tag);
+
 out:
+	rcu_read_unlock();
+
 	up_read(&hba->clk_scaling_lock);
 
 	if (ufs_trigger_eh()) {
@@ -5998,8 +6007,7 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba)
 	}
 	ufshcd_scsi_block_requests(hba);
 	/* Drain ufshcd_queuecommand() */
-	down_write(&hba->clk_scaling_lock);
-	up_write(&hba->clk_scaling_lock);
+	synchronize_rcu();
 	cancel_work_sync(&hba->eeh_work);
 }
 
-- 
GitLab


From 198b86493c92c2c5ee55297692c6454099b00196 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:49 -0800
Subject: [PATCH 2075/4878] BACKPORT: FROMGIT: scsi: ufs: Optimize the command
 queueing code

Remove the clock scaling lock from ufshcd_queuecommand() since it is a
performance bottleneck. Instead check the SCSI device budget bitmaps in the
code that waits for ongoing ufshcd_queuecommand() calls. A bit is set in
sdev->budget_map just before scsi_queue_rq() is called and a bit is cleared
from that bitmap if scsi_queue_rq() does not submit the request or after
the request has finished. See also the blk_mq_{get,put}_dispatch_budget()
calls in the block layer.

There is no risk for a livelock since the block layer delays queue reruns
if queueing a request fails because the SCSI host has been blocked.

Link: https://lore.kernel.org/r/20211203231950.193369-17-bvanassche@acm.org
Cc: Asutosh Das (asd) <asutoshd@codeaurora.org>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 8d077ede48c1532d791c027467d152ae137c54ab git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
[ bvanassche: changed sbitmap_weight(&sdev->budget_map) into atomic_read(&sdev->device_busy); ]
Bug: 204438323
Change-Id: I1330e09de30b74cff15cab05c9ae86ec413204cb
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 33 +++++++++++++++++++++++----------
 drivers/scsi/ufs/ufshcd.h |  1 +
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8535deb5c3904..88471706aa02a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1088,13 +1088,31 @@ static bool ufshcd_is_devfreq_scaling_required(struct ufs_hba *hba,
 	return false;
 }
 
+/*
+ * Determine the number of pending commands by counting the bits in the SCSI
+ * device budget maps. This approach has been selected because a bit is set in
+ * the budget map before scsi_host_queue_ready() checks the host_self_blocked
+ * flag. The host_self_blocked flag can be modified by calling
+ * scsi_block_requests() or scsi_unblock_requests().
+ */
+static u32 ufshcd_pending_cmds(struct ufs_hba *hba)
+{
+	struct scsi_device *sdev;
+	u32 pending = 0;
+
+	shost_for_each_device(sdev, hba->host)
+		pending += atomic_read(&sdev->device_busy);
+
+	return pending;
+}
+
 static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
 					u64 wait_timeout_us)
 {
 	unsigned long flags;
 	int ret = 0;
 	u32 tm_doorbell;
-	u32 tr_doorbell;
+	u32 tr_pending;
 	bool timeout = false, do_last_check = false;
 	ktime_t start;
 
@@ -1112,8 +1130,8 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
 		}
 
 		tm_doorbell = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
-		tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-		if (!tm_doorbell && !tr_doorbell) {
+		tr_pending = ufshcd_pending_cmds(hba);
+		if (!tm_doorbell && !tr_pending) {
 			timeout = false;
 			break;
 		} else if (do_last_check) {
@@ -1133,12 +1151,12 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
 			do_last_check = true;
 		}
 		spin_lock_irqsave(hba->host->host_lock, flags);
-	} while (tm_doorbell || tr_doorbell);
+	} while (tm_doorbell || tr_pending);
 
 	if (timeout) {
 		dev_err(hba->dev,
 			"%s: timedout waiting for doorbell to clear (tm=0x%x, tr=0x%x)\n",
-			__func__, tm_doorbell, tr_doorbell);
+			__func__, tm_doorbell, tr_pending);
 		ret = -EBUSY;
 	}
 out:
@@ -2709,9 +2727,6 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 
 	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
 
-	if (!down_read_trylock(&hba->clk_scaling_lock))
-		return SCSI_MLQUEUE_HOST_BUSY;
-
 	/*
 	 * Allows the UFS error handler to wait for prior ufshcd_queuecommand()
 	 * calls.
@@ -2807,8 +2822,6 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 out:
 	rcu_read_unlock();
 
-	up_read(&hba->clk_scaling_lock);
-
 	if (ufs_trigger_eh()) {
 		unsigned long flags;
 
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index af97052b9f08e..88bc1b9c8768d 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -814,6 +814,7 @@ struct ufs_hba_monitor {
  * @clk_list_head: UFS host controller clocks list node head
  * @pwr_info: holds current power mode
  * @max_pwr_info: keeps the device max valid pwm
+ * @clk_scaling_lock: used to serialize device commands and clock scaling
  * @desc_size: descriptor sizes reported by device
  * @urgent_bkops_lvl: keeps track of urgent bkops level for device
  * @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for
-- 
GitLab


From cfa96fa21dc64fce598f2d31e544471bbb85f2e6 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:50 -0800
Subject: [PATCH 2076/4878] FROMGIT: scsi: ufs: Implement polling support

The time spent in io_schedule() and also the interrupt latency are
significant when submitting direct I/O to a UFS device. Hence this patch
that implements polling support. User space software can enable polling by
passing the RWF_HIPRI flag to the preadv2() system call or the
IORING_SETUP_IOPOLL flag to the io_uring interface.

Although the block layer supports to partition the tag space for
interrupt-based completions (HCTX_TYPE_DEFAULT) purposes and polling
(HCTX_TYPE_POLL), the choice has been made to use the same hardware queue
for both hctx types because partitioning the tag space would negatively
affect performance.

On my test setup this patch increases IOPS from 2736 to 22000 (8x) for the
following test:

for hipri in 0 1; do
    fio --ioengine=io_uring --iodepth=1 --rw=randread \
    --runtime=60 --time_based=1 --direct=1 --name=qd1 \
    --filename=/dev/block/sda --ioscheduler=none --gtod_reduce=1 \
    --norandommap --hipri=$hipri
done

Link: https://lore.kernel.org/r/20211203231950.193369-18-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit eaab9b57305496067e225155ca86bf77c9a982f7 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Bug: 199284641
Change-Id: I9da9982800dee4fa0181ac88ea19e8b826f290ca
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 85 ++++++++++++++++++++++++++++++---------
 1 file changed, 67 insertions(+), 18 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 88471706aa02a..17c72820a6820 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2689,6 +2689,36 @@ static inline bool is_device_wlun(struct scsi_device *sdev)
 		ufshcd_upiu_wlun_to_scsi_wlun(UFS_UPIU_UFS_DEVICE_WLUN);
 }
 
+/*
+ * Associate the UFS controller queue with the default and poll HCTX types.
+ * Initialize the mq_map[] arrays.
+ */
+static int ufshcd_map_queues(struct Scsi_Host *shost)
+{
+	int i, ret;
+
+	for (i = 0; i < shost->nr_maps; i++) {
+		struct blk_mq_queue_map *map = &shost->tag_set.map[i];
+
+		switch (i) {
+		case HCTX_TYPE_DEFAULT:
+		case HCTX_TYPE_POLL:
+			map->nr_queues = 1;
+			break;
+		case HCTX_TYPE_READ:
+			map->nr_queues = 0;
+			break;
+		default:
+			WARN_ON_ONCE(true);
+		}
+		map->queue_offset = 0;
+		ret = blk_mq_map_queues(map);
+		WARN_ON_ONCE(ret);
+	}
+
+	return 0;
+}
+
 static void ufshcd_init_lrb(struct ufs_hba *hba, struct ufshcd_lrb *lrb, int i)
 {
 	struct utp_transfer_cmd_desc *cmd_descp = (void *)hba->ucdl_base_addr +
@@ -2725,7 +2755,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	struct ufshcd_lrb *lrbp;
 	int err = 0;
 
-	WARN_ONCE(tag < 0, "Invalid tag %d\n", tag);
+	WARN_ONCE(tag < 0 || tag >= hba->nutrs, "Invalid tag %d\n", tag);
 
 	/*
 	 * Allows the UFS error handler to wait for prior ufshcd_queuecommand()
@@ -5334,6 +5364,31 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
 	}
 }
 
+/*
+ * Returns > 0 if one or more commands have been completed or 0 if no
+ * requests have been completed.
+ */
+static int ufshcd_poll(struct Scsi_Host *shost, unsigned int queue_num)
+{
+	struct ufs_hba *hba = shost_priv(shost);
+	unsigned long completed_reqs, flags;
+	u32 tr_doorbell;
+
+	spin_lock_irqsave(&hba->outstanding_lock, flags);
+	tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
+	completed_reqs = ~tr_doorbell & hba->outstanding_reqs;
+	WARN_ONCE(completed_reqs & ~hba->outstanding_reqs,
+		  "completed: %#lx; outstanding: %#lx\n", completed_reqs,
+		  hba->outstanding_reqs);
+	hba->outstanding_reqs &= ~completed_reqs;
+	spin_unlock_irqrestore(&hba->outstanding_lock, flags);
+
+	if (completed_reqs)
+		__ufshcd_transfer_req_compl(hba, completed_reqs);
+
+	return completed_reqs;
+}
+
 /**
  * ufshcd_transfer_req_compl - handle SCSI and query command completion
  * @hba: per adapter instance
@@ -5344,9 +5399,6 @@ static void __ufshcd_transfer_req_compl(struct ufs_hba *hba,
  */
 static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
 {
-	unsigned long completed_reqs, flags;
-	u32 tr_doorbell;
-
 	/* Resetting interrupt aggregation counters first and reading the
 	 * DOOR_BELL afterward allows us to handle all the completed requests.
 	 * In order to prevent other interrupts starvation the DB is read once
@@ -5361,21 +5413,13 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba)
 	if (ufs_fail_completion())
 		return IRQ_HANDLED;
 
-	spin_lock_irqsave(&hba->outstanding_lock, flags);
-	tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL);
-	completed_reqs = ~tr_doorbell & hba->outstanding_reqs;
-	WARN_ONCE(completed_reqs & ~hba->outstanding_reqs,
-		  "completed: %#lx; outstanding: %#lx\n", completed_reqs,
-		  hba->outstanding_reqs);
-	hba->outstanding_reqs &= ~completed_reqs;
-	spin_unlock_irqrestore(&hba->outstanding_lock, flags);
+	/*
+	 * Ignore the ufshcd_poll() return value and return IRQ_HANDLED since we
+	 * do not want polling to trigger spurious interrupt complaints.
+	 */
+	ufshcd_poll(hba->host, 0);
 
-	if (completed_reqs) {
-		__ufshcd_transfer_req_compl(hba, completed_reqs);
-		return IRQ_HANDLED;
-	} else {
-		return IRQ_NONE;
-	}
+	return IRQ_HANDLED;
 }
 
 int __ufshcd_write_ee_control(struct ufs_hba *hba, u32 ee_ctrl_mask)
@@ -6630,6 +6674,8 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	spin_lock_irqsave(host->host_lock, flags);
 
 	task_tag = req->tag;
+	WARN_ONCE(task_tag < 0 || task_tag >= hba->nutmrs, "Invalid tag %d\n",
+		  task_tag);
 	hba->tmf_rqs[req->tag] = req;
 	treq->upiu_req.req_header.dword_0 |= cpu_to_be32(task_tag);
 
@@ -8195,7 +8241,9 @@ static struct scsi_host_template ufshcd_driver_template = {
 	.module			= THIS_MODULE,
 	.name			= UFSHCD,
 	.proc_name		= UFSHCD,
+	.map_queues		= ufshcd_map_queues,
 	.queuecommand		= ufshcd_queuecommand,
+	.mq_poll		= ufshcd_poll,
 	.slave_alloc		= ufshcd_slave_alloc,
 	.slave_configure	= ufshcd_slave_configure,
 	.slave_destroy		= ufshcd_slave_destroy,
@@ -9483,6 +9531,7 @@ int ufshcd_alloc_host(struct device *dev, struct ufs_hba **hba_handle)
 		err = -ENOMEM;
 		goto out_error;
 	}
+	host->nr_maps = HCTX_TYPE_POLL + 1;
 	hba = shost_priv(host);
 	hba->host = host;
 	hba->dev = dev;
-- 
GitLab


From a1333d173e8864bd0bd289825fc896b6bf10f927 Mon Sep 17 00:00:00 2001
From: Alex Hong <rurumihong@google.com>
Date: Thu, 9 Dec 2021 16:42:33 +0800
Subject: [PATCH 2077/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 199698959
Signed-off-by: Alex Hong <rurumihong@google.com>
Change-Id: I0c65ecdd9a41b7b139b9d71b09292c3041640ff9
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index e9bc2489fe61f..74e15b91e02e0 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1083,6 +1083,7 @@
   __kfifo_init
   __kfifo_in_r
   __kfifo_out
+  __kfifo_out_peek
   __kfifo_skip_r
   __kfifo_to_user_r
   kfree
-- 
GitLab


From ee16e480d22b7dd8307e4ed4bc3e94d5955e28a1 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 23 Jul 2021 00:59:21 -0700
Subject: [PATCH 2078/4878] f2fs: use iomap for direct I/O

Make f2fs_file_read_iter() and f2fs_file_write_iter() use the iomap
direct I/O implementation instead of the fs/direct-io.c one.

The iomap implementation is more efficient, and it also avoids the need
to add new features and optimizations to the old implementation.

This new implementation also eliminates the need for f2fs to hook bio
submission and completion and to allocate memory per-bio.  This is
because it's possible to correctly update f2fs's in-flight DIO counters
using __iomap_dio_rw() in combination with an implementation of
iomap_dio_ops::end_io() (as suggested by Christoph Hellwig).

When possible, this new implementation preserves existing f2fs behavior
such as the conditions for falling back to buffered I/O.

This patch has been tested with xfstests by running 'gce-xfstests -c
f2fs -g auto -X generic/017' with and without this patch; no regressions
were seen.  (Some tests fail both before and after.  generic/017 hangs
both before and after, so it had to be excluded.)

Signed-off-by: Eric Biggers <ebiggers@google.com>
[Jaegeuk Kim: use spin_lock_bh for f2fs_update_iostat in softirq]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c   | 205 +---------------------------
 fs/f2fs/f2fs.h   |   8 +-
 fs/f2fs/file.c   | 342 +++++++++++++++++++++++++++++++++++++++++------
 fs/f2fs/iostat.c |  40 +++---
 4 files changed, 322 insertions(+), 273 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 03109644c4db8..83a765a54cecf 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1387,11 +1387,6 @@ alloc:
 		f2fs_invalidate_compress_page(sbi, old_blkaddr);
 	}
 	f2fs_update_data_blkaddr(dn, dn->data_blkaddr);
-
-	/*
-	 * i_size will be updated by direct_IO. Otherwise, we'll get stale
-	 * data from unwritten block via dio_read.
-	 */
 	return 0;
 }
 
@@ -1753,50 +1748,6 @@ static inline u64 blks_to_bytes(struct inode *inode, u64 blks)
 	return (blks << inode->i_blkbits);
 }
 
-static int __get_data_block(struct inode *inode, sector_t iblock,
-			struct buffer_head *bh, int create, int flag,
-			pgoff_t *next_pgofs, int seg_type, bool may_write)
-{
-	struct f2fs_map_blocks map;
-	int err;
-
-	map.m_lblk = iblock;
-	map.m_len = bytes_to_blks(inode, bh->b_size);
-	map.m_next_pgofs = next_pgofs;
-	map.m_next_extent = NULL;
-	map.m_seg_type = seg_type;
-	map.m_may_create = may_write;
-
-	err = f2fs_map_blocks(inode, &map, create, flag);
-	if (!err) {
-		map_bh(bh, inode->i_sb, map.m_pblk);
-		bh->b_state = (bh->b_state & ~F2FS_MAP_FLAGS) | map.m_flags;
-		bh->b_size = blks_to_bytes(inode, map.m_len);
-
-		if (map.m_multidev_dio)
-			bh->b_bdev = map.m_bdev;
-	}
-	return err;
-}
-
-static int get_data_block_dio_write(struct inode *inode, sector_t iblock,
-			struct buffer_head *bh_result, int create)
-{
-	return __get_data_block(inode, iblock, bh_result, create,
-				F2FS_GET_BLOCK_DIO, NULL,
-				f2fs_rw_hint_to_seg_type(inode->i_write_hint),
-				true);
-}
-
-static int get_data_block_dio(struct inode *inode, sector_t iblock,
-			struct buffer_head *bh_result, int create)
-{
-	return __get_data_block(inode, iblock, bh_result, create,
-				F2FS_GET_BLOCK_DIO, NULL,
-				f2fs_rw_hint_to_seg_type(inode->i_write_hint),
-				false);
-}
-
 static int f2fs_xattr_fiemap(struct inode *inode,
 				struct fiemap_extent_info *fieinfo)
 {
@@ -3273,7 +3224,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
 			FS_CP_DATA_IO : FS_DATA_IO);
 }
 
-static void f2fs_write_failed(struct inode *inode, loff_t to)
+void f2fs_write_failed(struct inode *inode, loff_t to)
 {
 	loff_t i_size = i_size_read(inode);
 
@@ -3561,158 +3512,6 @@ unlock_out:
 	return copied;
 }
 
-static int check_direct_IO(struct inode *inode, struct iov_iter *iter,
-			   loff_t offset)
-{
-	unsigned i_blkbits = READ_ONCE(inode->i_blkbits);
-	unsigned blkbits = i_blkbits;
-	unsigned blocksize_mask = (1 << blkbits) - 1;
-	unsigned long align = offset | iov_iter_alignment(iter);
-	struct block_device *bdev = inode->i_sb->s_bdev;
-
-	if (iov_iter_rw(iter) == READ && offset >= i_size_read(inode))
-		return 1;
-
-	if (align & blocksize_mask) {
-		if (bdev)
-			blkbits = blksize_bits(bdev_logical_block_size(bdev));
-		blocksize_mask = (1 << blkbits) - 1;
-		if (align & blocksize_mask)
-			return -EINVAL;
-		return 1;
-	}
-	return 0;
-}
-
-static void f2fs_dio_end_io(struct bio *bio)
-{
-	struct f2fs_private_dio *dio = bio->bi_private;
-
-	dec_page_count(F2FS_I_SB(dio->inode),
-			dio->write ? F2FS_DIO_WRITE : F2FS_DIO_READ);
-
-	bio->bi_private = dio->orig_private;
-	bio->bi_end_io = dio->orig_end_io;
-
-	kfree(dio);
-
-	bio_endio(bio);
-}
-
-static void f2fs_dio_submit_bio(struct bio *bio, struct inode *inode,
-							loff_t file_offset)
-{
-	struct f2fs_private_dio *dio;
-	bool write = (bio_op(bio) == REQ_OP_WRITE);
-
-	dio = f2fs_kzalloc(F2FS_I_SB(inode),
-			sizeof(struct f2fs_private_dio), GFP_NOFS);
-	if (!dio)
-		goto out;
-
-	dio->inode = inode;
-	dio->orig_end_io = bio->bi_end_io;
-	dio->orig_private = bio->bi_private;
-	dio->write = write;
-
-	bio->bi_end_io = f2fs_dio_end_io;
-	bio->bi_private = dio;
-
-	inc_page_count(F2FS_I_SB(inode),
-			write ? F2FS_DIO_WRITE : F2FS_DIO_READ);
-
-	submit_bio(bio);
-	return;
-out:
-	bio->bi_status = BLK_STS_IOERR;
-	bio_endio(bio);
-}
-
-static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
-{
-	struct address_space *mapping = iocb->ki_filp->f_mapping;
-	struct inode *inode = mapping->host;
-	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-	struct f2fs_inode_info *fi = F2FS_I(inode);
-	size_t count = iov_iter_count(iter);
-	loff_t offset = iocb->ki_pos;
-	int rw = iov_iter_rw(iter);
-	int err;
-	enum rw_hint hint = iocb->ki_hint;
-	int whint_mode = F2FS_OPTION(sbi).whint_mode;
-	bool do_opu;
-
-	err = check_direct_IO(inode, iter, offset);
-	if (err)
-		return err < 0 ? err : 0;
-
-	if (f2fs_force_buffered_io(inode, iocb, iter))
-		return 0;
-
-	do_opu = rw == WRITE && f2fs_lfs_mode(sbi);
-
-	trace_f2fs_direct_IO_enter(inode, offset, count, rw);
-
-	if (rw == WRITE && whint_mode == WHINT_MODE_OFF)
-		iocb->ki_hint = WRITE_LIFE_NOT_SET;
-
-	if (iocb->ki_flags & IOCB_NOWAIT) {
-		if (!down_read_trylock(&fi->i_gc_rwsem[rw])) {
-			iocb->ki_hint = hint;
-			err = -EAGAIN;
-			goto out;
-		}
-		if (do_opu && !down_read_trylock(&fi->i_gc_rwsem[READ])) {
-			up_read(&fi->i_gc_rwsem[rw]);
-			iocb->ki_hint = hint;
-			err = -EAGAIN;
-			goto out;
-		}
-	} else {
-		down_read(&fi->i_gc_rwsem[rw]);
-		if (do_opu)
-			down_read(&fi->i_gc_rwsem[READ]);
-	}
-
-	err = __blockdev_direct_IO(iocb, inode, inode->i_sb->s_bdev,
-			iter, rw == WRITE ? get_data_block_dio_write :
-			get_data_block_dio, NULL, f2fs_dio_submit_bio,
-			rw == WRITE ? DIO_LOCKING | DIO_SKIP_HOLES :
-			DIO_SKIP_HOLES);
-
-	if (do_opu)
-		up_read(&fi->i_gc_rwsem[READ]);
-
-	up_read(&fi->i_gc_rwsem[rw]);
-
-	if (rw == WRITE) {
-		if (whint_mode == WHINT_MODE_OFF)
-			iocb->ki_hint = hint;
-		if (err > 0) {
-			f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_IO,
-									err);
-			if (!do_opu)
-				set_inode_flag(inode, FI_UPDATE_WRITE);
-		} else if (err == -EIOCBQUEUED) {
-			f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_IO,
-						count - iov_iter_count(iter));
-		} else if (err < 0) {
-			f2fs_write_failed(inode, offset + count);
-		}
-	} else {
-		if (err > 0)
-			f2fs_update_iostat(sbi, APP_DIRECT_READ_IO, err);
-		else if (err == -EIOCBQUEUED)
-			f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_READ_IO,
-						count - iov_iter_count(iter));
-	}
-
-out:
-	trace_f2fs_direct_IO_exit(inode, offset, count, rw, err);
-
-	return err;
-}
-
 void f2fs_invalidate_page(struct page *page, unsigned int offset,
 							unsigned int length)
 {
@@ -4168,7 +3967,7 @@ const struct address_space_operations f2fs_dblock_aops = {
 	.set_page_dirty	= f2fs_set_data_page_dirty,
 	.invalidatepage	= f2fs_invalidate_page,
 	.releasepage	= f2fs_release_page,
-	.direct_IO	= f2fs_direct_IO,
+	.direct_IO	= noop_direct_IO,
 	.bmap		= f2fs_bmap,
 	.swap_activate  = f2fs_swap_activate,
 	.swap_deactivate = f2fs_swap_deactivate,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index f3b1fee1f66b2..bed22c3254a9f 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1808,13 +1808,6 @@ struct f2fs_sb_info {
 #endif
 };
 
-struct f2fs_private_dio {
-	struct inode *inode;
-	void *orig_private;
-	bio_end_io_t *orig_end_io;
-	bool write;
-};
-
 #ifdef CONFIG_F2FS_FAULT_INJECTION
 #define f2fs_show_injection_info(sbi, type)					\
 	printk_ratelimited("%sF2FS-fs (%s) : inject %s in %s of %pS\n",	\
@@ -3639,6 +3632,7 @@ int f2fs_write_single_data_page(struct page *page, int *submitted,
 				struct writeback_control *wbc,
 				enum iostat_type io_type,
 				int compr_blocks, bool allow_balance);
+void f2fs_write_failed(struct inode *inode, loff_t to);
 void f2fs_invalidate_page(struct page *page, unsigned int offset,
 			unsigned int length);
 int f2fs_release_page(struct page *page, gfp_t wait);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c9bf006d01adb..2d3d25936dc62 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -23,6 +23,7 @@
 #include <linux/nls.h>
 #include <linux/sched/signal.h>
 #include <linux/fadvise.h>
+#include <linux/iomap.h>
 
 #include "f2fs.h"
 #include "node.h"
@@ -4351,23 +4352,145 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	return __f2fs_ioctl(filp, cmd, arg);
 }
 
-static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+/*
+ * Return %true if the given read or write request should use direct I/O, or
+ * %false if it should use buffered I/O.
+ */
+static bool f2fs_should_use_dio(struct inode *inode, struct kiocb *iocb,
+				struct iov_iter *iter)
+{
+	unsigned int align;
+
+	if (!(iocb->ki_flags & IOCB_DIRECT))
+		return false;
+
+	if (f2fs_force_buffered_io(inode, iocb, iter))
+		return false;
+
+	/*
+	 * Direct I/O not aligned to the disk's logical_block_size will be
+	 * attempted, but will fail with -EINVAL.
+	 *
+	 * f2fs additionally requires that direct I/O be aligned to the
+	 * filesystem block size, which is often a stricter requirement.
+	 * However, f2fs traditionally falls back to buffered I/O on requests
+	 * that are logical_block_size-aligned but not fs-block aligned.
+	 *
+	 * The below logic implements this behavior.
+	 */
+	align = iocb->ki_pos | iov_iter_alignment(iter);
+	if (!IS_ALIGNED(align, i_blocksize(inode)) &&
+	    IS_ALIGNED(align, bdev_logical_block_size(inode->i_sb->s_bdev)))
+		return false;
+
+	return true;
+}
+
+static int f2fs_dio_read_end_io(struct kiocb *iocb, ssize_t size, int error,
+				unsigned int flags)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp));
+
+	dec_page_count(sbi, F2FS_DIO_READ);
+	if (error)
+		return error;
+	f2fs_update_iostat(sbi, APP_DIRECT_READ_IO, size);
+	return 0;
+}
+
+static const struct iomap_dio_ops f2fs_iomap_dio_read_ops = {
+	.end_io = f2fs_dio_read_end_io,
+};
+
+static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file_inode(file);
-	int ret;
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct f2fs_inode_info *fi = F2FS_I(inode);
+	const loff_t pos = iocb->ki_pos;
+	const size_t count = iov_iter_count(to);
+	struct iomap_dio *dio;
+	ssize_t ret;
+
+	if (count == 0)
+		return 0; /* skip atime update */
+
+	trace_f2fs_direct_IO_enter(inode, pos, count, READ);
+
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		if (!down_read_trylock(&fi->i_gc_rwsem[READ])) {
+			ret = -EAGAIN;
+			goto out;
+		}
+	} else {
+		down_read(&fi->i_gc_rwsem[READ]);
+	}
+
+	/*
+	 * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of
+	 * the higher-level function iomap_dio_rw() in order to ensure that the
+	 * F2FS_DIO_READ counter will be decremented correctly in all cases.
+	 */
+	inc_page_count(sbi, F2FS_DIO_READ);
+	dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops,
+			     &f2fs_iomap_dio_read_ops, 0, 0);
+	if (IS_ERR_OR_NULL(dio)) {
+		ret = PTR_ERR_OR_ZERO(dio);
+		if (ret != -EIOCBQUEUED)
+			dec_page_count(sbi, F2FS_DIO_READ);
+	} else {
+		ret = iomap_dio_complete(dio);
+	}
+
+	up_read(&fi->i_gc_rwsem[READ]);
+
+	file_accessed(file);
+out:
+	trace_f2fs_direct_IO_exit(inode, pos, count, READ, ret);
+	return ret;
+}
+
+static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
+{
+	struct inode *inode = file_inode(iocb->ki_filp);
+	ssize_t ret;
 
 	if (!f2fs_is_compress_backend_ready(inode))
 		return -EOPNOTSUPP;
 
-	ret = generic_file_read_iter(iocb, iter);
+	if (f2fs_should_use_dio(inode, iocb, to))
+		return f2fs_dio_read_iter(iocb, to);
 
+	ret = filemap_read(iocb, to, 0);
 	if (ret > 0)
-		f2fs_update_iostat(F2FS_I_SB(inode), APP_READ_IO, ret);
-
+		f2fs_update_iostat(F2FS_I_SB(inode), APP_BUFFERED_READ_IO, ret);
 	return ret;
 }
 
+static ssize_t f2fs_write_checks(struct kiocb *iocb, struct iov_iter *from)
+{
+	struct file *file = iocb->ki_filp;
+	struct inode *inode = file_inode(file);
+	ssize_t count;
+	int err;
+
+	if (IS_IMMUTABLE(inode))
+		return -EPERM;
+
+	if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
+		return -EPERM;
+
+	count = generic_write_checks(iocb, from);
+	if (count <= 0)
+		return count;
+
+	err = file_modified(file);
+	if (err)
+		return err;
+	return count;
+}
+
 /*
  * Preallocate blocks for a write request, if it is possible and helpful to do
  * so.  Returns a positive number if blocks may have been preallocated, 0 if no
@@ -4375,15 +4498,14 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
  * seriously wrong.  Also sets FI_PREALLOCATED_ALL on the inode if *all* the
  * requested blocks (not just some of them) have been allocated.
  */
-static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter)
+static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter,
+				   bool dio)
 {
 	struct inode *inode = file_inode(iocb->ki_filp);
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	const loff_t pos = iocb->ki_pos;
 	const size_t count = iov_iter_count(iter);
 	struct f2fs_map_blocks map = {};
-	bool dio = (iocb->ki_flags & IOCB_DIRECT) &&
-		   !f2fs_force_buffered_io(inode, iocb, iter);
 	int flag;
 	int ret;
 
@@ -4440,13 +4562,174 @@ static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter)
 	return map.m_len;
 }
 
-static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
+static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb,
+					struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file_inode(file);
+	ssize_t ret;
+
+	if (iocb->ki_flags & IOCB_NOWAIT)
+		return -EOPNOTSUPP;
+
+	current->backing_dev_info = inode_to_bdi(inode);
+	ret = generic_perform_write(file, from, iocb->ki_pos);
+	current->backing_dev_info = NULL;
+
+	if (ret > 0) {
+		iocb->ki_pos += ret;
+		f2fs_update_iostat(F2FS_I_SB(inode), APP_BUFFERED_IO, ret);
+	}
+	return ret;
+}
+
+static int f2fs_dio_write_end_io(struct kiocb *iocb, ssize_t size, int error,
+				 unsigned int flags)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp));
+
+	dec_page_count(sbi, F2FS_DIO_WRITE);
+	if (error)
+		return error;
+	f2fs_update_iostat(sbi, APP_DIRECT_IO, size);
+	return 0;
+}
+
+static const struct iomap_dio_ops f2fs_iomap_dio_write_ops = {
+	.end_io = f2fs_dio_write_end_io,
+};
+
+static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
+				   bool *may_need_sync)
+{
+	struct file *file = iocb->ki_filp;
+	struct inode *inode = file_inode(file);
+	struct f2fs_inode_info *fi = F2FS_I(inode);
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	const bool do_opu = f2fs_lfs_mode(sbi);
+	const int whint_mode = F2FS_OPTION(sbi).whint_mode;
+	const loff_t pos = iocb->ki_pos;
+	const ssize_t count = iov_iter_count(from);
+	const enum rw_hint hint = iocb->ki_hint;
+	unsigned int dio_flags;
+	struct iomap_dio *dio;
+	ssize_t ret;
+
+	trace_f2fs_direct_IO_enter(inode, pos, count, WRITE);
+
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		/* f2fs_convert_inline_inode() and block allocation can block */
+		if (f2fs_has_inline_data(inode) ||
+		    !f2fs_overwrite_io(inode, pos, count)) {
+			ret = -EAGAIN;
+			goto out;
+		}
+
+		if (!down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
+			ret = -EAGAIN;
+			goto out;
+		}
+		if (do_opu && !down_read_trylock(&fi->i_gc_rwsem[READ])) {
+			up_read(&fi->i_gc_rwsem[WRITE]);
+			ret = -EAGAIN;
+			goto out;
+		}
+	} else {
+		ret = f2fs_convert_inline_inode(inode);
+		if (ret)
+			goto out;
+
+		down_read(&fi->i_gc_rwsem[WRITE]);
+		if (do_opu)
+			down_read(&fi->i_gc_rwsem[READ]);
+	}
+	if (whint_mode == WHINT_MODE_OFF)
+		iocb->ki_hint = WRITE_LIFE_NOT_SET;
+
+	/*
+	 * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of
+	 * the higher-level function iomap_dio_rw() in order to ensure that the
+	 * F2FS_DIO_WRITE counter will be decremented correctly in all cases.
+	 */
+	inc_page_count(sbi, F2FS_DIO_WRITE);
+	dio_flags = 0;
+	if (pos + count > inode->i_size)
+		dio_flags |= IOMAP_DIO_FORCE_WAIT;
+	dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops,
+			     &f2fs_iomap_dio_write_ops, dio_flags, 0);
+	if (IS_ERR_OR_NULL(dio)) {
+		ret = PTR_ERR_OR_ZERO(dio);
+		if (ret == -ENOTBLK)
+			ret = 0;
+		if (ret != -EIOCBQUEUED)
+			dec_page_count(sbi, F2FS_DIO_WRITE);
+	} else {
+		ret = iomap_dio_complete(dio);
+	}
+
+	if (whint_mode == WHINT_MODE_OFF)
+		iocb->ki_hint = hint;
+	if (do_opu)
+		up_read(&fi->i_gc_rwsem[READ]);
+	up_read(&fi->i_gc_rwsem[WRITE]);
+
+	if (ret < 0)
+		goto out;
+	if (pos + ret > inode->i_size)
+		f2fs_i_size_write(inode, pos + ret);
+	if (!do_opu)
+		set_inode_flag(inode, FI_UPDATE_WRITE);
+
+	if (iov_iter_count(from)) {
+		ssize_t ret2;
+		loff_t bufio_start_pos = iocb->ki_pos;
+
+		/*
+		 * The direct write was partial, so we need to fall back to a
+		 * buffered write for the remainder.
+		 */
+
+		ret2 = f2fs_buffered_write_iter(iocb, from);
+		if (iov_iter_count(from))
+			f2fs_write_failed(inode, iocb->ki_pos);
+		if (ret2 < 0)
+			goto out;
+
+		/*
+		 * Ensure that the pagecache pages are written to disk and
+		 * invalidated to preserve the expected O_DIRECT semantics.
+		 */
+		if (ret2 > 0) {
+			loff_t bufio_end_pos = bufio_start_pos + ret2 - 1;
+
+			ret += ret2;
+
+			ret2 = filemap_write_and_wait_range(file->f_mapping,
+							    bufio_start_pos,
+							    bufio_end_pos);
+			if (ret2 < 0)
+				goto out;
+			invalidate_mapping_pages(file->f_mapping,
+						 bufio_start_pos >> PAGE_SHIFT,
+						 bufio_end_pos >> PAGE_SHIFT);
+		}
+	} else {
+		/* iomap_dio_rw() already handled the generic_write_sync(). */
+		*may_need_sync = false;
+	}
+out:
+	trace_f2fs_direct_IO_exit(inode, pos, count, WRITE, ret);
+	return ret;
+}
+
+static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
+{
+	struct inode *inode = file_inode(iocb->ki_filp);
 	const loff_t orig_pos = iocb->ki_pos;
 	const size_t orig_count = iov_iter_count(from);
 	loff_t target_size;
+	bool dio;
+	bool may_need_sync = true;
 	int preallocated;
 	ssize_t ret;
 
@@ -4469,42 +4752,23 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 		inode_lock(inode);
 	}
 
-	if (unlikely(IS_IMMUTABLE(inode))) {
-		ret = -EPERM;
-		goto out_unlock;
-	}
-
-	if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
-		ret = -EPERM;
-		goto out_unlock;
-	}
-
-	ret = generic_write_checks(iocb, from);
+	ret = f2fs_write_checks(iocb, from);
 	if (ret <= 0)
 		goto out_unlock;
 
-	if (iocb->ki_flags & IOCB_NOWAIT) {
-		if (!f2fs_overwrite_io(inode, iocb->ki_pos,
-					iov_iter_count(from)) ||
-				f2fs_has_inline_data(inode) ||
-				f2fs_force_buffered_io(inode, iocb, from)) {
-			ret = -EAGAIN;
-			goto out_unlock;
-		}
-	}
+	/* Determine whether we will do a direct write or a buffered write. */
+	dio = f2fs_should_use_dio(inode, iocb, from);
 
-	if (iocb->ki_flags & IOCB_DIRECT) {
-		ret = f2fs_convert_inline_inode(inode);
-		if (ret)
-			goto out_unlock;
-	}
 	/* Possibly preallocate the blocks for the write. */
 	target_size = iocb->ki_pos + iov_iter_count(from);
-	preallocated = f2fs_preallocate_blocks(iocb, from);
+	preallocated = f2fs_preallocate_blocks(iocb, from, dio);
 	if (preallocated < 0)
 		ret = preallocated;
 	else
-		ret = __generic_file_write_iter(iocb, from);
+		/* Do the actual write. */
+		ret = dio ?
+			f2fs_dio_write_iter(iocb, from, &may_need_sync):
+			f2fs_buffered_write_iter(iocb, from);
 
 	/* Don't leave any preallocated blocks around past i_size. */
 	if (preallocated && i_size_read(inode) < target_size) {
@@ -4519,15 +4783,11 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 	clear_inode_flag(inode, FI_PREALLOCATED_ALL);
-
-	if (ret > 0)
-		f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
-
 out_unlock:
 	inode_unlock(inode);
 out:
 	trace_f2fs_file_write_iter(inode, orig_pos, orig_count, ret);
-	if (ret > 0)
+	if (ret > 0 && may_need_sync)
 		ret = generic_write_sync(iocb, ret);
 	return ret;
 }
diff --git a/fs/f2fs/iostat.c b/fs/f2fs/iostat.c
index cdcf54ae0db8f..be599f31d3c48 100644
--- a/fs/f2fs/iostat.c
+++ b/fs/f2fs/iostat.c
@@ -92,7 +92,7 @@ static inline void __record_iostat_latency(struct f2fs_sb_info *sbi)
 	struct f2fs_iostat_latency iostat_lat[MAX_IO_TYPE][NR_PAGE_TYPE];
 	struct iostat_lat_info *io_lat = sbi->iostat_io_lat;
 
-	spin_lock_irq(&sbi->iostat_lat_lock);
+	spin_lock_bh(&sbi->iostat_lat_lock);
 	for (idx = 0; idx < MAX_IO_TYPE; idx++) {
 		for (io = 0; io < NR_PAGE_TYPE; io++) {
 			cnt = io_lat->bio_cnt[idx][io];
@@ -106,7 +106,7 @@ static inline void __record_iostat_latency(struct f2fs_sb_info *sbi)
 			io_lat->bio_cnt[idx][io] = 0;
 		}
 	}
-	spin_unlock_irq(&sbi->iostat_lat_lock);
+	spin_unlock_bh(&sbi->iostat_lat_lock);
 
 	trace_f2fs_iostat_latency(sbi, iostat_lat);
 }
@@ -120,9 +120,9 @@ static inline void f2fs_record_iostat(struct f2fs_sb_info *sbi)
 		return;
 
 	/* Need double check under the lock */
-	spin_lock(&sbi->iostat_lock);
+	spin_lock_bh(&sbi->iostat_lock);
 	if (time_is_after_jiffies(sbi->iostat_next_period)) {
-		spin_unlock(&sbi->iostat_lock);
+		spin_unlock_bh(&sbi->iostat_lock);
 		return;
 	}
 	sbi->iostat_next_period = jiffies +
@@ -133,7 +133,7 @@ static inline void f2fs_record_iostat(struct f2fs_sb_info *sbi)
 				sbi->prev_rw_iostat[i];
 		sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
 	}
-	spin_unlock(&sbi->iostat_lock);
+	spin_unlock_bh(&sbi->iostat_lock);
 
 	trace_f2fs_iostat(sbi, iostat_diff);
 
@@ -145,16 +145,16 @@ void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
 	struct iostat_lat_info *io_lat = sbi->iostat_io_lat;
 	int i;
 
-	spin_lock(&sbi->iostat_lock);
+	spin_lock_bh(&sbi->iostat_lock);
 	for (i = 0; i < NR_IO_TYPE; i++) {
 		sbi->rw_iostat[i] = 0;
 		sbi->prev_rw_iostat[i] = 0;
 	}
-	spin_unlock(&sbi->iostat_lock);
+	spin_unlock_bh(&sbi->iostat_lock);
 
-	spin_lock_irq(&sbi->iostat_lat_lock);
+	spin_lock_bh(&sbi->iostat_lat_lock);
 	memset(io_lat, 0, sizeof(struct iostat_lat_info));
-	spin_unlock_irq(&sbi->iostat_lat_lock);
+	spin_unlock_bh(&sbi->iostat_lat_lock);
 }
 
 void f2fs_update_iostat(struct f2fs_sb_info *sbi,
@@ -163,19 +163,16 @@ void f2fs_update_iostat(struct f2fs_sb_info *sbi,
 	if (!sbi->iostat_enable)
 		return;
 
-	spin_lock(&sbi->iostat_lock);
+	spin_lock_bh(&sbi->iostat_lock);
 	sbi->rw_iostat[type] += io_bytes;
 
-	if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
-		sbi->rw_iostat[APP_BUFFERED_IO] =
-			sbi->rw_iostat[APP_WRITE_IO] -
-			sbi->rw_iostat[APP_DIRECT_IO];
+	if (type == APP_BUFFERED_IO || type == APP_DIRECT_IO)
+		sbi->rw_iostat[APP_WRITE_IO] += io_bytes;
 
-	if (type == APP_READ_IO || type == APP_DIRECT_READ_IO)
-		sbi->rw_iostat[APP_BUFFERED_READ_IO] =
-			sbi->rw_iostat[APP_READ_IO] -
-			sbi->rw_iostat[APP_DIRECT_READ_IO];
-	spin_unlock(&sbi->iostat_lock);
+	if (type == APP_BUFFERED_READ_IO || type == APP_DIRECT_READ_IO)
+		sbi->rw_iostat[APP_READ_IO] += io_bytes;
+
+	spin_unlock_bh(&sbi->iostat_lock);
 
 	f2fs_record_iostat(sbi);
 }
@@ -185,7 +182,6 @@ static inline void __update_iostat_latency(struct bio_iostat_ctx *iostat_ctx,
 {
 	unsigned long ts_diff;
 	unsigned int iotype = iostat_ctx->type;
-	unsigned long flags;
 	struct f2fs_sb_info *sbi = iostat_ctx->sbi;
 	struct iostat_lat_info *io_lat = sbi->iostat_io_lat;
 	int idx;
@@ -206,12 +202,12 @@ static inline void __update_iostat_latency(struct bio_iostat_ctx *iostat_ctx,
 			idx = WRITE_ASYNC_IO;
 	}
 
-	spin_lock_irqsave(&sbi->iostat_lat_lock, flags);
+	spin_lock_bh(&sbi->iostat_lat_lock);
 	io_lat->sum_lat[idx][iotype] += ts_diff;
 	io_lat->bio_cnt[idx][iotype]++;
 	if (ts_diff > io_lat->peak_lat[idx][iotype])
 		io_lat->peak_lat[idx][iotype] = ts_diff;
-	spin_unlock_irqrestore(&sbi->iostat_lat_lock, flags);
+	spin_unlock_bh(&sbi->iostat_lat_lock);
 }
 
 void iostat_update_and_unbind_ctx(struct bio *bio, int rw)
-- 
GitLab


From 07d31fbb1da47cd458bd456ab765e0c3b1550cba Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 19 Nov 2021 11:20:33 -0800
Subject: [PATCH 2079/4878] f2fs: show more DIO information in tracepoint

This prints more information of DIO in tracepoint.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c              |  4 ++--
 include/trace/events/f2fs.h | 15 +++++++++------
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2d3d25936dc62..1cc5918c34e74 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4416,7 +4416,7 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	if (count == 0)
 		return 0; /* skip atime update */
 
-	trace_f2fs_direct_IO_enter(inode, pos, count, READ);
+	trace_f2fs_direct_IO_enter(inode, iocb, count, READ);
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
 		if (!down_read_trylock(&fi->i_gc_rwsem[READ])) {
@@ -4615,7 +4615,7 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 	struct iomap_dio *dio;
 	ssize_t ret;
 
-	trace_f2fs_direct_IO_enter(inode, pos, count, WRITE);
+	trace_f2fs_direct_IO_enter(inode, iocb, count, WRITE);
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
 		/* f2fs_convert_inline_inode() and block allocation can block */
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index dcb94d740e122..f701bb23f83c4 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -936,14 +936,14 @@ TRACE_EVENT(f2fs_fallocate,
 
 TRACE_EVENT(f2fs_direct_IO_enter,
 
-	TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw),
+	TP_PROTO(struct inode *inode, struct kiocb *iocb, long len, int rw),
 
-	TP_ARGS(inode, offset, len, rw),
+	TP_ARGS(inode, iocb, len, rw),
 
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(loff_t,	pos)
+		__field(struct kiocb *,	iocb)
 		__field(unsigned long,	len)
 		__field(int,	rw)
 	),
@@ -951,15 +951,18 @@ TRACE_EVENT(f2fs_direct_IO_enter,
 	TP_fast_assign(
 		__entry->dev	= inode->i_sb->s_dev;
 		__entry->ino	= inode->i_ino;
-		__entry->pos	= offset;
+		__entry->iocb	= iocb;
 		__entry->len	= len;
 		__entry->rw	= rw;
 	),
 
-	TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu rw = %d",
+	TP_printk("dev = (%d,%d), ino = %lu pos = %lld len = %lu ki_flags = %x ki_hint = %x ki_ioprio = %x rw = %d",
 		show_dev_ino(__entry),
-		__entry->pos,
+		__entry->iocb->ki_pos,
 		__entry->len,
+		__entry->iocb->ki_flags,
+		__entry->iocb->ki_hint,
+		__entry->iocb->ki_ioprio,
 		__entry->rw)
 );
 
-- 
GitLab


From 485eaa5339c16bd4d07c7dd727153c393ac30e01 Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Fri, 26 Nov 2021 18:19:19 +0800
Subject: [PATCH 2080/4878] f2fs: fix remove page failed in invalidate compress
 pages

Since compress inode not a regular file, generic_error_remove_page in
f2fs_invalidate_compress_pages will always be failed, set compress
inode as a regular file to fix it.

Fixes: 6ce19aff0b8c ("f2fs: compress: add compress_inode to cache compressed blocks")
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/inode.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 6998eb1d6bdb0..935016e56010b 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -516,6 +516,11 @@ make_now:
 	} else if (ino == F2FS_COMPRESS_INO(sbi)) {
 #ifdef CONFIG_F2FS_FS_COMPRESSION
 		inode->i_mapping->a_ops = &f2fs_compress_aops;
+		/*
+		 * generic_error_remove_page only truncates pages of regular
+		 * inode
+		 */
+		inode->i_mode |= S_IFREG;
 #endif
 		mapping_set_gfp_mask(inode->i_mapping,
 			GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
-- 
GitLab


From 26f2048b7e9b363b4574c16e59cd1f29ed9eed6f Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Mon, 29 Nov 2021 10:13:41 +0800
Subject: [PATCH 2081/4878] f2fs: support POSIX_FADV_DONTNEED drop compressed
 page cache

Previously, compressed page cache drop when clean page cache, but
POSIX_FADV_DONTNEED can't clean compressed page cache because raw page
don't have private data, and won't call f2fs_invalidate_compress_pages.
This commit call f2fs_invalidate_compress_pages() directly in
f2fs_file_fadvise() for POSIX_FADV_DONTNEED case.

Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1cc5918c34e74..5d2da94de777c 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4795,12 +4795,12 @@ out:
 static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len,
 		int advice)
 {
-	struct inode *inode;
 	struct address_space *mapping;
 	struct backing_dev_info *bdi;
+	struct inode *inode = file_inode(filp);
+	int err;
 
 	if (advice == POSIX_FADV_SEQUENTIAL) {
-		inode = file_inode(filp);
 		if (S_ISFIFO(inode->i_mode))
 			return -ESPIPE;
 
@@ -4817,7 +4817,13 @@ static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len,
 		return 0;
 	}
 
-	return generic_fadvise(filp, offset, len, advice);
+	err = generic_fadvise(filp, offset, len, advice);
+	if (!err && advice == POSIX_FADV_DONTNEED &&
+		test_opt(F2FS_I_SB(inode), COMPRESS_CACHE) &&
+		f2fs_compressed_file(inode))
+		f2fs_invalidate_compress_pages(F2FS_I_SB(inode), inode->i_ino);
+
+	return err;
 }
 
 #ifdef CONFIG_COMPAT
-- 
GitLab


From 0a3990ed943c228df4788ff46afc6669ddc7f642 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@google.com>
Date: Thu, 2 Dec 2021 13:07:24 -0800
Subject: [PATCH 2082/4878] 5.10 only

Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
---
 fs/f2fs/file.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 5d2da94de777c..20bc5b9355c2c 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -4434,7 +4434,7 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	 */
 	inc_page_count(sbi, F2FS_DIO_READ);
 	dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops,
-			     &f2fs_iomap_dio_read_ops, 0, 0);
+			     &f2fs_iomap_dio_read_ops, is_sync_kiocb(iocb));
 	if (IS_ERR_OR_NULL(dio)) {
 		ret = PTR_ERR_OR_ZERO(dio);
 		if (ret != -EIOCBQUEUED)
@@ -4454,7 +4454,7 @@ out:
 static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 {
 	struct inode *inode = file_inode(iocb->ki_filp);
-	ssize_t ret;
+	ssize_t ret = 0;
 
 	if (!f2fs_is_compress_backend_ready(inode))
 		return -EOPNOTSUPP;
@@ -4462,7 +4462,7 @@ static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	if (f2fs_should_use_dio(inode, iocb, to))
 		return f2fs_dio_read_iter(iocb, to);
 
-	ret = filemap_read(iocb, to, 0);
+	ret = generic_file_buffered_read(iocb, to, ret);
 	if (ret > 0)
 		f2fs_update_iostat(F2FS_I_SB(inode), APP_BUFFERED_READ_IO, ret);
 	return ret;
@@ -4654,9 +4654,10 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 	inc_page_count(sbi, F2FS_DIO_WRITE);
 	dio_flags = 0;
 	if (pos + count > inode->i_size)
-		dio_flags |= IOMAP_DIO_FORCE_WAIT;
+		dio_flags = 1;	/* IOMAP_DIO_FORCE_WAIT */
 	dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops,
-			     &f2fs_iomap_dio_write_ops, dio_flags, 0);
+			     &f2fs_iomap_dio_write_ops,
+			     dio_flags || is_sync_kiocb(iocb));
 	if (IS_ERR_OR_NULL(dio)) {
 		ret = PTR_ERR_OR_ZERO(dio);
 		if (ret == -ENOTBLK)
-- 
GitLab


From 77a5322217763d440f8b14ceb2e16c4d7d7a90da Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Sat, 4 Dec 2021 09:55:35 -0800
Subject: [PATCH 2083/4878] f2fs: avoid duplicate call of mark_inode_dirty

Let's check the condition first before set|clear bit.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/f2fs.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index bed22c3254a9f..37e14bf42b447 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3116,12 +3116,16 @@ static inline int is_file(struct inode *inode, int type)
 
 static inline void set_file(struct inode *inode, int type)
 {
+	if (is_file(inode, type))
+		return;
 	F2FS_I(inode)->i_advise |= type;
 	f2fs_mark_inode_dirty_sync(inode, true);
 }
 
 static inline void clear_file(struct inode *inode, int type)
 {
+	if (!is_file(inode, type))
+		return;
 	F2FS_I(inode)->i_advise &= ~type;
 	f2fs_mark_inode_dirty_sync(inode, true);
 }
-- 
GitLab


From bccc5dde2b94443f8fddf6c7e26cf9eeb1adf9eb Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Mon, 6 Dec 2021 22:44:19 +0800
Subject: [PATCH 2084/4878] f2fs: fix to do sanity check on inode type during
 garbage collection

As report by Wenqing Liu in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215231

- Overview
kernel NULL pointer dereference triggered  in folio_mark_dirty() when mount and operate on a crafted f2fs image

- Reproduce
tested on kernel 5.16-rc3, 5.15.X under root

1. mkdir mnt
2. mount -t f2fs tmp1.img mnt
3. touch tmp
4. cp tmp mnt

F2FS-fs (loop0): sanity_check_inode: inode (ino=49) extent info [5942, 4294180864, 4] is incorrect, run fsck to fix
F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=31340049, run fsck to fix.
BUG: kernel NULL pointer dereference, address: 0000000000000000
 folio_mark_dirty+0x33/0x50
 move_data_page+0x2dd/0x460 [f2fs]
 do_garbage_collect+0xc18/0x16a0 [f2fs]
 f2fs_gc+0x1d3/0xd90 [f2fs]
 f2fs_balance_fs+0x13a/0x570 [f2fs]
 f2fs_create+0x285/0x840 [f2fs]
 path_openat+0xe6d/0x1040
 do_filp_open+0xc5/0x140
 do_sys_openat2+0x23a/0x310
 do_sys_open+0x57/0x80

The root cause is for special file: e.g. character, block, fifo or socket file,
f2fs doesn't assign address space operations pointer array for mapping->a_ops field,
so, in a fuzzed image, SSA table indicates a data block belong to special file, when
f2fs tries to migrate that block, it causes NULL pointer access once move_data_page()
calls a_ops->set_dirty_page().

Cc: stable@vger.kernel.org
Reported-by: Wenqing Liu <wenqingliu0120@gmail.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/gc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index a946ce0ead341..e0bdc4361a9bb 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1457,7 +1457,8 @@ next_step:
 
 		if (phase == 3) {
 			inode = f2fs_iget(sb, dni.ino);
-			if (IS_ERR(inode) || is_bad_inode(inode))
+			if (IS_ERR(inode) || is_bad_inode(inode) ||
+					special_file(inode->i_mode))
 				continue;
 
 			if (!down_write_trylock(
-- 
GitLab


From 6ffb4b00d495b59785f9da7b6d2448956205fe9c Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Mon, 6 Dec 2021 22:44:20 +0800
Subject: [PATCH 2085/4878] f2fs: fix to avoid panic in is_alive() if metadata
 is inconsistent

As report by Wenqing Liu in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215231

If we enable CONFIG_F2FS_CHECK_FS config, and with fuzzed image attached
in above link, we will encounter panic when executing below script:

1. mkdir mnt
2. mount -t f2fs tmp1.img mnt
3. touch tmp

F2FS-fs (loop11): mismatched blkaddr 5765 (source_blkaddr 1) in seg 3
kernel BUG at fs/f2fs/gc.c:1042!
 do_garbage_collect+0x90f/0xa80 [f2fs]
 f2fs_gc+0x294/0x12a0 [f2fs]
 f2fs_balance_fs+0x2c5/0x7d0 [f2fs]
 f2fs_create+0x239/0xd90 [f2fs]
 lookup_open+0x45e/0xa90
 open_last_lookups+0x203/0x670
 path_openat+0xae/0x490
 do_filp_open+0xbc/0x160
 do_sys_openat2+0x2f1/0x500
 do_sys_open+0x5e/0xa0
 __x64_sys_openat+0x28/0x40

Previously, f2fs tries to catch data inconcistency exception in between
SSA and SIT table during GC, however once the exception is caught, it will
call f2fs_bug_on to hang kernel, it's not needed, instead, let's set
SBI_NEED_FSCK flag and skip migrating current block.

Fixes: bbf9f7d90f21 ("f2fs: Fix indefinite loop in f2fs_gc()")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/gc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index e0bdc4361a9bb..3e64b234df213 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1039,7 +1039,7 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 			if (!test_and_set_bit(segno, SIT_I(sbi)->invalid_segmap)) {
 				f2fs_err(sbi, "mismatched blkaddr %u (source_blkaddr %u) in seg %u",
 					 blkaddr, source_blkaddr, segno);
-				f2fs_bug_on(sbi, 1);
+				set_sbi_flag(sbi, SBI_NEED_FSCK);
 			}
 		}
 #endif
-- 
GitLab


From c144e4d28f5e9b966faf50b5fc9e3b4fd83f463a Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Mon, 6 Dec 2021 22:44:21 +0800
Subject: [PATCH 2086/4878] f2fs: fix to do sanity check in is_alive()

In fuzzed image, SSA table may indicate that a data block belongs to
invalid node, which node ID is out-of-range (0, 1, 2 or max_nid), in
order to avoid migrating inconsistent data in such corrupted image,
let's do sanity check anyway before data block migration.

Cc: stable@vger.kernel.org
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/gc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 3e64b234df213..b538cbcba351d 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1026,6 +1026,9 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 	}
 
+	if (f2fs_check_nid_range(sbi, dni->ino))
+		return false;
+
 	*nofs = ofs_of_node(node_page);
 	source_blkaddr = data_blkaddr(NULL, node_page, ofs_in_node);
 	f2fs_put_page(node_page, 1);
-- 
GitLab


From 705c4f5d5372fb32408ceb5dd6cfdac7c3439cd5 Mon Sep 17 00:00:00 2001
From: Daeho Jeong <daehojeong@google.com>
Date: Wed, 8 Dec 2021 16:41:51 -0800
Subject: [PATCH 2087/4878] f2fs: add gc_urgent_high_remaining sysfs node

Added a new sysfs node called gc_urgent_high_remaining. The user can
set the trial count limit for GC urgent high mode with this value. If
GC thread gets to the limit, the mode will turn back to GC normal mode.
By default, the value is zero, which means there is no limit like before.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs |  7 +++++++
 fs/f2fs/f2fs.h                          |  3 +++
 fs/f2fs/gc.c                            | 12 ++++++++++++
 fs/f2fs/super.c                         |  1 +
 fs/f2fs/sysfs.c                         | 11 +++++++++++
 5 files changed, 34 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index f20c03eaa7c19..9beb2b650f167 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -533,3 +533,10 @@ Description:	With "mode=fragment:block" mount options, we can scatter block allo
 		f2fs will allocate 1..<max_fragment_chunk> blocks in a chunk and make a hole
 		in the length of 1..<max_fragment_hole> by turns. This value can be set
 		between 1..512 and the default value is 4.
+
+What:		/sys/fs/f2fs/<disk>/gc_urgent_high_remaining
+Date:		December 2021
+Contact:	"Daeho Jeong" <daehojeong@google.com>
+Description:	You can set the trial count limit for GC urgent high mode with this value.
+		If GC thread gets to the limit, the mode will turn back to GC normal mode.
+		By default, the value is zero, which means there is no limit like before.
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 37e14bf42b447..0a32718a6d1a8 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1684,6 +1684,9 @@ struct f2fs_sb_info {
 	unsigned int cur_victim_sec;		/* current victim section num */
 	unsigned int gc_mode;			/* current GC state */
 	unsigned int next_victim_seg[2];	/* next segment in victim section */
+	spinlock_t gc_urgent_high_lock;
+	bool gc_urgent_high_limited;		/* indicates having limited trial count */
+	unsigned int gc_urgent_high_remaining;	/* remaining trial count for GC_URGENT_HIGH */
 
 	/* for skip statistic */
 	unsigned int atomic_files;		/* # of opened atomic file */
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index b538cbcba351d..7fbe46477a5ac 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -92,6 +92,18 @@ static int gc_thread_func(void *data)
 		 * So, I'd like to wait some time to collect dirty segments.
 		 */
 		if (sbi->gc_mode == GC_URGENT_HIGH) {
+			spin_lock(&sbi->gc_urgent_high_lock);
+			if (sbi->gc_urgent_high_limited) {
+				if (!sbi->gc_urgent_high_remaining) {
+					sbi->gc_urgent_high_limited = false;
+					spin_unlock(&sbi->gc_urgent_high_lock);
+					sbi->gc_mode = GC_NORMAL;
+					continue;
+				}
+				sbi->gc_urgent_high_remaining--;
+			}
+			spin_unlock(&sbi->gc_urgent_high_lock);
+
 			wait_ms = gc_th->urgent_sleep_time;
 			down_write(&sbi->gc_lock);
 			goto do_gc;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 180e9a6b1840d..e42d7a6091a9e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3552,6 +3552,7 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
 	sbi->seq_file_ra_mul = MIN_RA_MUL;
 	sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE;
 	sbi->max_fragment_hole = DEF_FRAGMENT_SIZE;
+	spin_lock_init(&sbi->gc_urgent_high_lock);
 
 	sbi->dir_level = DEF_DIR_LEVEL;
 	sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 375188444cf6a..fd97b3c822249 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -487,6 +487,15 @@ out:
 		return count;
 	}
 
+	if (!strcmp(a->attr.name, "gc_urgent_high_remaining")) {
+		spin_lock(&sbi->gc_urgent_high_lock);
+		sbi->gc_urgent_high_limited = t == 0 ? false : true;
+		sbi->gc_urgent_high_remaining = t;
+		spin_unlock(&sbi->gc_urgent_high_lock);
+
+		return count;
+	}
+
 #ifdef CONFIG_F2FS_IOSTAT
 	if (!strcmp(a->attr.name, "iostat_enable")) {
 		sbi->iostat_enable = !!t;
@@ -742,6 +751,7 @@ F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
 #endif
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent_high_remaining, gc_urgent_high_remaining);
 F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio);
 F2FS_GENERAL_RO_ATTR(dirty_segments);
 F2FS_GENERAL_RO_ATTR(free_segments);
@@ -855,6 +865,7 @@ static struct attribute *f2fs_attrs[] = {
 #endif
 	ATTR_LIST(data_io_flag),
 	ATTR_LIST(node_io_flag),
+	ATTR_LIST(gc_urgent_high_remaining),
 	ATTR_LIST(ckpt_thread_ioprio),
 	ATTR_LIST(dirty_segments),
 	ATTR_LIST(free_segments),
-- 
GitLab


From ca2c32a7effa7b110a261a4b501e9554825d2b35 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 9 Dec 2021 10:25:43 -0800
Subject: [PATCH 2088/4878] f2fs: avoid EINVAL by SBI_NEED_FSCK when pinning a
 file

Android OTA failed due to SBI_NEED_FSCK flag when pinning the file. Let's avoid
it since we can do in-place-updates.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Change-Id: I3fd33c984417c10b38e23de6cec017b03d588945
---
 fs/f2fs/data.c |  7 +++++--
 fs/f2fs/file.c | 10 +++++-----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 83a765a54cecf..2bd963d9f974a 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2535,6 +2535,11 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
+	/* The below cases were checked when setting it. */
+	if (f2fs_is_pinned_file(inode))
+		return false;
+	if (fio && is_sbi_flag_set(sbi, SBI_NEED_FSCK))
+		return true;
 	if (f2fs_lfs_mode(sbi))
 		return true;
 	if (S_ISDIR(inode->i_mode))
@@ -2543,8 +2548,6 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
 		return true;
 	if (f2fs_is_atomic_file(inode))
 		return true;
-	if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
-		return true;
 
 	/* swap file is migrating in aligned write mode */
 	if (is_inode_flag_set(inode, FI_ALIGNED_WRITE))
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 20bc5b9355c2c..e845185ab9c33 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -3269,17 +3269,17 @@ static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
 
 	inode_lock(inode);
 
-	if (f2fs_should_update_outplace(inode, NULL)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	if (!pin) {
 		clear_inode_flag(inode, FI_PIN_FILE);
 		f2fs_i_gc_failures_write(inode, 0);
 		goto done;
 	}
 
+	if (f2fs_should_update_outplace(inode, NULL)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	if (f2fs_pin_file_control(inode, false)) {
 		ret = -EAGAIN;
 		goto out;
-- 
GitLab


From b69c8779f4fc2d97632b3f395f9c65de88ab4398 Mon Sep 17 00:00:00 2001
From: Hyeong-Jun Kim <hj514.kim@samsung.com>
Date: Fri, 10 Dec 2021 13:30:12 +0900
Subject: [PATCH 2089/4878] f2fs: compress: fix potential deadlock of compress
 file

There is a potential deadlock between writeback process and a process
performing write_begin() or write_cache_pages() while trying to write
same compress file, but not compressable, as below:

[Process A] - doing checkpoint
[Process B]                     [Process C]
f2fs_write_cache_pages()
- lock_page() [all pages in cluster, 0-31]
- f2fs_write_multi_pages()
 - f2fs_write_raw_pages()
  - f2fs_write_single_data_page()
   - f2fs_do_write_data_page()
     - return -EAGAIN [f2fs_trylock_op() failed]
   - unlock_page(page) [e.g., page 0]
                                - generic_perform_write()
                                 - f2fs_write_begin()
                                  - f2fs_prepare_compress_overwrite()
                                   - prepare_compress_overwrite()
                                    - lock_page() [e.g., page 0]
                                    - lock_page() [e.g., page 1]
   - lock_page(page) [e.g., page 0]

Since there is no compress process, it is no longer necessary to hold
locks on every pages in cluster within f2fs_write_raw_pages().

This patch changes f2fs_write_raw_pages() to release all locks first
and then perform write same as the non-compress file in
f2fs_write_cache_pages().

Fixes: 4c8ff7095bef ("f2fs: support data compression")
Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Youngjin Gil <youngjin.gil@samsung.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/compress.c | 50 ++++++++++++++++++++--------------------------
 1 file changed, 22 insertions(+), 28 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 1addd14cff80e..7772f327b63c6 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1455,25 +1455,38 @@ static int f2fs_write_raw_pages(struct compress_ctx *cc,
 					enum iostat_type io_type)
 {
 	struct address_space *mapping = cc->inode->i_mapping;
-	int _submitted, compr_blocks, ret;
-	int i = -1, err = 0;
+	int _submitted, compr_blocks, ret, i;
 
 	compr_blocks = f2fs_compressed_blocks(cc);
-	if (compr_blocks < 0) {
-		err = compr_blocks;
-		goto out_err;
+
+	for (i = 0; i < cc->cluster_size; i++) {
+		if (!cc->rpages[i])
+			continue;
+
+		redirty_page_for_writepage(wbc, cc->rpages[i]);
+		unlock_page(cc->rpages[i]);
 	}
 
+	if (compr_blocks < 0)
+		return compr_blocks;
+
 	for (i = 0; i < cc->cluster_size; i++) {
 		if (!cc->rpages[i])
 			continue;
 retry_write:
+		lock_page(cc->rpages[i]);
+
 		if (cc->rpages[i]->mapping != mapping) {
+continue_unlock:
 			unlock_page(cc->rpages[i]);
 			continue;
 		}
 
-		BUG_ON(!PageLocked(cc->rpages[i]));
+		if (!PageDirty(cc->rpages[i]))
+			goto continue_unlock;
+
+		if (!clear_page_dirty_for_io(cc->rpages[i]))
+			goto continue_unlock;
 
 		ret = f2fs_write_single_data_page(cc->rpages[i], &_submitted,
 						NULL, NULL, wbc, io_type,
@@ -1488,26 +1501,15 @@ retry_write:
 				 * avoid deadlock caused by cluster update race
 				 * from foreground operation.
 				 */
-				if (IS_NOQUOTA(cc->inode)) {
-					err = 0;
-					goto out_err;
-				}
+				if (IS_NOQUOTA(cc->inode))
+					return 0;
 				ret = 0;
 				cond_resched();
 				congestion_wait(BLK_RW_ASYNC,
 						DEFAULT_IO_TIMEOUT);
-				lock_page(cc->rpages[i]);
-
-				if (!PageDirty(cc->rpages[i])) {
-					unlock_page(cc->rpages[i]);
-					continue;
-				}
-
-				clear_page_dirty_for_io(cc->rpages[i]);
 				goto retry_write;
 			}
-			err = ret;
-			goto out_err;
+			return ret;
 		}
 
 		*submitted += _submitted;
@@ -1516,14 +1518,6 @@ retry_write:
 	f2fs_balance_fs(F2FS_M_SB(mapping), true);
 
 	return 0;
-out_err:
-	for (++i; i < cc->cluster_size; i++) {
-		if (!cc->rpages[i])
-			continue;
-		redirty_page_for_writepage(wbc, cc->rpages[i]);
-		unlock_page(cc->rpages[i]);
-	}
-	return err;
 }
 
 int f2fs_write_multi_pages(struct compress_ctx *cc,
-- 
GitLab


From 8a97c9eb77eab6b674c2e91e54143fcf9633a1bc Mon Sep 17 00:00:00 2001
From: Matthias Maennich <maennich@google.com>
Date: Sun, 12 Dec 2021 15:23:28 +0000
Subject: [PATCH 2090/4878] ANDROID: move CLANG_VERSION definition to
 build.config.constants

Moving this static value to a separate configuration file allows it to
be used from other builds as well, such as the Kleaf build.

Bug: 210296725
Signed-off-by: Matthias Maennich <maennich@google.com>
Change-Id: I07aac5609d8ec986e0e270fdbba3662ac10029f4
---
 build.config.common    | 4 +++-
 build.config.constants | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 build.config.constants

diff --git a/build.config.common b/build.config.common
index 73e50cb588c7b..e9c93042f46a3 100644
--- a/build.config.common
+++ b/build.config.common
@@ -1,9 +1,11 @@
+. ${ROOT_DIR}/${KERNEL_DIR}/build.config.constants
+
 BRANCH=android13-5.10
 KMI_GENERATION=0
 
 LLVM=1
 DEPMOD=depmod
-CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-r437112/bin
+CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-${CLANG_VERSION}/bin
 BUILDTOOLS_PREBUILT_BIN=build/build-tools/path/linux-x86
 DTC=${ROOT_DIR}/${BUILDTOOLS_PREBUILT_BIN}/dtc
 
diff --git a/build.config.constants b/build.config.constants
new file mode 100644
index 0000000000000..3ba91bacef594
--- /dev/null
+++ b/build.config.constants
@@ -0,0 +1 @@
+CLANG_VERSION=r437112
-- 
GitLab


From 42399ee2ca531432c0182e6c5a6b9bbaeed8d5e5 Mon Sep 17 00:00:00 2001
From: Matthias Maennich <maennich@google.com>
Date: Sun, 12 Dec 2021 15:25:41 +0000
Subject: [PATCH 2091/4878] ANDROID: Kleaf: Fix branch-specific
 toolchain_version

In order to update the Clang version per branch, use the branch specific
value defined in build.config.constants instead of falling back to the
default toolchain defined in the Kleaf implementation.

Bug: 210296725
Signed-off-by: Matthias Maennich <maennich@google.com>
Change-Id: I8929ec4b4174fc286710a5c66741b140656bb455
---
 BUILD.bazel | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/BUILD.bazel b/BUILD.bazel
index 463a49d365792..67e5228d7732a 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -18,5 +18,6 @@ package(
 )
 
 load("//build/kleaf:common_kernels.bzl", "define_common_kernels")
+load("@kernel_toolchain_info//:dict.bzl", "CLANG_VERSION")
 
-define_common_kernels()
+define_common_kernels(toolchain_version = CLANG_VERSION)
-- 
GitLab


From 045bef28d60d1be4aabed148cb1a390c8d2fc623 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Wed, 8 Dec 2021 07:57:20 -0500
Subject: [PATCH 2092/4878] UPSTREAM: tracefs: Have new files inherit the
 ownership of their parent

If directories in tracefs have their ownership changed, then any new files
and directories that are created under those directories should inherit
the ownership of the director they are created in.

Link: https://lkml.kernel.org/r/20211208075720.4855d180@gandalf.local.home

Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Yabin Cui <yabinc@google.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: stable@vger.kernel.org
Fixes: 4282d60689d4f ("tracefs: Add new tracefs file system")
Reported-by: Kalesh Singh <kaleshsingh@google.com>
Reported: https://lore.kernel.org/all/CAC_TJve8MMAv+H_NdLSJXZUSoxOEq2zB_pVaJ9p=7H6Bu3X76g@mail.gmail.com/
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit ee7f3666995d8537dec17b1d35425f28877671a9)

Bug: 209513178
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I026a8302d1d51ce1751e4595dc13e7e5f16b7f84
---
 fs/tracefs/inode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index bf58ae6f984fe..3d7bb4c8c2618 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -412,6 +412,8 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode,
 	inode->i_mode = mode;
 	inode->i_fop = fops ? fops : &tracefs_file_operations;
 	inode->i_private = data;
+	inode->i_uid = d_inode(dentry->d_parent)->i_uid;
+	inode->i_gid = d_inode(dentry->d_parent)->i_gid;
 	d_instantiate(dentry, inode);
 	fsnotify_create(dentry->d_parent->d_inode, dentry);
 	return end_creating(dentry);
@@ -434,6 +436,8 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP;
 	inode->i_op = ops;
 	inode->i_fop = &simple_dir_operations;
+	inode->i_uid = d_inode(dentry->d_parent)->i_uid;
+	inode->i_gid = d_inode(dentry->d_parent)->i_gid;
 
 	/* directory inodes start off with i_nlink == 2 (for "." entry) */
 	inc_nlink(inode);
-- 
GitLab


From 10f76ddc13a18a23826bddca561045b504d184d9 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Tue, 7 Dec 2021 17:17:29 -0500
Subject: [PATCH 2093/4878] UPSTREAM: tracefs: Set all files to the same group
 ownership as the mount option

As people have been asking to allow non-root processes to have access to
the tracefs directory, it was considered best to only allow groups to have
access to the directory, where it is easier to just set the tracefs file
system to a specific group (as other would be too dangerous), and that way
the admins could pick which processes would have access to tracefs.

Unfortunately, this broke tooling on Android that expected the other bit
to be set. For some special cases, for non-root tools to trace the system,
tracefs would be mounted and change the permissions of the top level
directory which gave access to all running tasks permission to the
tracing directory. Even though this would be dangerous to do in a
production environment, for testing environments this can be useful.

Now with the new changes to not allow other (which is still the proper
thing to do), it breaks the testing tooling. Now more code needs to be
loaded on the system to change ownership of the tracing directory.

The real solution is to have tracefs honor the gid=xxx option when
mounting. That is,

(tracing group tracing has value 1003)

 mount -t tracefs -o gid=1003 tracefs /sys/kernel/tracing

should have it that all files in the tracing directory should be of the
given group.

Copy the logic from d_walk() from dcache.c and simplify it for the mount
case of tracefs if gid is set. All the files in tracefs will be walked and
their group will be set to the value passed in.

Link: https://lkml.kernel.org/r/20211207171729.2a54e1b3@gandalf.local.home

Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Kalesh Singh <kaleshsingh@google.com>
Reported-by: Yabin Cui <yabinc@google.com>
Fixes: 49d67e445742 ("tracefs: Have tracefs directories not set OTH permission bits by default")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit 48b27b6b5191e2e1f2798cd80877b6e4ef47c351)
Change-Id: Iba09fb57089bc6d101588a1fcc8303386a517e40

Bug: 209513178
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ia020a42d1c5dd1460346cd67dfdf4b066c9a7203
---
 fs/tracefs/inode.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 3d7bb4c8c2618..ade05887070dd 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -159,6 +159,77 @@ struct tracefs_fs_info {
 	struct tracefs_mount_opts mount_opts;
 };
 
+static void change_gid(struct dentry *dentry, kgid_t gid)
+{
+	if (!dentry->d_inode)
+		return;
+	dentry->d_inode->i_gid = gid;
+}
+
+/*
+ * Taken from d_walk, but without he need for handling renames.
+ * Nothing can be renamed while walking the list, as tracefs
+ * does not support renames. This is only called when mounting
+ * or remounting the file system, to set all the files to
+ * the given gid.
+ */
+static void set_gid(struct dentry *parent, kgid_t gid)
+{
+	struct dentry *this_parent;
+	struct list_head *next;
+
+	this_parent = parent;
+	spin_lock(&this_parent->d_lock);
+
+	change_gid(this_parent, gid);
+repeat:
+	next = this_parent->d_subdirs.next;
+resume:
+	while (next != &this_parent->d_subdirs) {
+		struct list_head *tmp = next;
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
+		next = tmp->next;
+
+		spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
+
+		change_gid(dentry, gid);
+
+		if (!list_empty(&dentry->d_subdirs)) {
+			spin_unlock(&this_parent->d_lock);
+			spin_release(&dentry->d_lock.dep_map, _RET_IP_);
+			this_parent = dentry;
+			spin_acquire(&this_parent->d_lock.dep_map, 0, 1, _RET_IP_);
+			goto repeat;
+		}
+		spin_unlock(&dentry->d_lock);
+	}
+	/*
+	 * All done at this level ... ascend and resume the search.
+	 */
+	rcu_read_lock();
+ascend:
+	if (this_parent != parent) {
+		struct dentry *child = this_parent;
+		this_parent = child->d_parent;
+
+		spin_unlock(&child->d_lock);
+		spin_lock(&this_parent->d_lock);
+
+		/* go into the first sibling still alive */
+		do {
+			next = child->d_child.next;
+			if (next == &this_parent->d_subdirs)
+				goto ascend;
+			child = list_entry(next, struct dentry, d_child);
+		} while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED));
+		rcu_read_unlock();
+		goto resume;
+	}
+	rcu_read_unlock();
+	spin_unlock(&this_parent->d_lock);
+	return;
+}
+
 static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
 {
 	substring_t args[MAX_OPT_ARGS];
@@ -191,6 +262,7 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
 			if (!gid_valid(gid))
 				return -EINVAL;
 			opts->gid = gid;
+			set_gid(tracefs_mount->mnt_root, gid);
 			break;
 		case Opt_mode:
 			if (match_octal(&args[0], &option))
-- 
GitLab


From 518c3f98e57a8081de3d8bc39d7bf9025326c3bd Mon Sep 17 00:00:00 2001
From: Thomas Haemmerle <thomas.haemmerle@wolfvision.net>
Date: Sun, 3 Oct 2021 22:13:55 +0200
Subject: [PATCH 2094/4878] usb: gadget: uvc: fix multiple opens

commit 72ee48ee8925446eaeda8e4ef3f2eb16b4a93d2a upstream.

Currently, the UVC function is activated when open on the corresponding
v4l2 device is called.  On another open the activation of the function
fails since the deactivation counter in `usb_function_activate` equals
0. However the error is not returned to userspace since the open of the
v4l2 device is successful.

On a close the function is deactivated (since deactivation counter still
equals 0) and the video is disabled in `uvc_v4l2_release`, although the
UVC application potentially is streaming.

Move activation of UVC function to subscription on UVC_EVENT_SETUP
because there we can guarantee for a userspace application utilizing
UVC.  Block subscription on UVC_EVENT_SETUP while another application
already is subscribed to it, indicated by `bool func_connected` in
`struct uvc_device`.  Extend the `struct uvc_file_handle` with member
`bool is_uvc_app_handle` to tag it as the handle used by the userspace
UVC application.

With this a process is able to check capabilities of the v4l2 device
without deactivating the function for the actual UVC application.

Reviewed-By: Michael Tretter <m.tretter@pengutronix.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Haemmerle <thomas.haemmerle@wolfvision.net>
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20211003201355.24081-1-m.grzeschik@pengutronix.de
Cc: Dan Vacura <W36195@motorola.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/uvc.h      |  2 ++
 drivers/usb/gadget/function/uvc_v4l2.c | 49 ++++++++++++++++++++++----
 2 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h
index 23ee25383c1f7..893aaa70f81a4 100644
--- a/drivers/usb/gadget/function/uvc.h
+++ b/drivers/usb/gadget/function/uvc.h
@@ -117,6 +117,7 @@ struct uvc_device {
 	enum uvc_state state;
 	struct usb_function func;
 	struct uvc_video video;
+	bool func_connected;
 
 	/* Descriptors */
 	struct {
@@ -147,6 +148,7 @@ static inline struct uvc_device *to_uvc(struct usb_function *f)
 struct uvc_file_handle {
 	struct v4l2_fh vfh;
 	struct uvc_video *device;
+	bool is_uvc_app_handle;
 };
 
 #define to_uvc_file_handle(handle) \
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index 4ca89eab61590..197c26f7aec63 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -227,17 +227,55 @@ static int
 uvc_v4l2_subscribe_event(struct v4l2_fh *fh,
 			 const struct v4l2_event_subscription *sub)
 {
+	struct uvc_device *uvc = video_get_drvdata(fh->vdev);
+	struct uvc_file_handle *handle = to_uvc_file_handle(fh);
+	int ret;
+
 	if (sub->type < UVC_EVENT_FIRST || sub->type > UVC_EVENT_LAST)
 		return -EINVAL;
 
-	return v4l2_event_subscribe(fh, sub, 2, NULL);
+	if (sub->type == UVC_EVENT_SETUP && uvc->func_connected)
+		return -EBUSY;
+
+	ret = v4l2_event_subscribe(fh, sub, 2, NULL);
+	if (ret < 0)
+		return ret;
+
+	if (sub->type == UVC_EVENT_SETUP) {
+		uvc->func_connected = true;
+		handle->is_uvc_app_handle = true;
+		uvc_function_connect(uvc);
+	}
+
+	return 0;
+}
+
+static void uvc_v4l2_disable(struct uvc_device *uvc)
+{
+	uvc->func_connected = false;
+	uvc_function_disconnect(uvc);
+	uvcg_video_enable(&uvc->video, 0);
+	uvcg_free_buffers(&uvc->video.queue);
 }
 
 static int
 uvc_v4l2_unsubscribe_event(struct v4l2_fh *fh,
 			   const struct v4l2_event_subscription *sub)
 {
-	return v4l2_event_unsubscribe(fh, sub);
+	struct uvc_device *uvc = video_get_drvdata(fh->vdev);
+	struct uvc_file_handle *handle = to_uvc_file_handle(fh);
+	int ret;
+
+	ret = v4l2_event_unsubscribe(fh, sub);
+	if (ret < 0)
+		return ret;
+
+	if (sub->type == UVC_EVENT_SETUP && handle->is_uvc_app_handle) {
+		uvc_v4l2_disable(uvc);
+		handle->is_uvc_app_handle = false;
+	}
+
+	return 0;
 }
 
 static long
@@ -292,7 +330,6 @@ uvc_v4l2_open(struct file *file)
 	handle->device = &uvc->video;
 	file->private_data = &handle->vfh;
 
-	uvc_function_connect(uvc);
 	return 0;
 }
 
@@ -304,11 +341,9 @@ uvc_v4l2_release(struct file *file)
 	struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
 	struct uvc_video *video = handle->device;
 
-	uvc_function_disconnect(uvc);
-
 	mutex_lock(&video->mutex);
-	uvcg_video_enable(video, 0);
-	uvcg_free_buffers(&video->queue);
+	if (handle->is_uvc_app_handle)
+		uvc_v4l2_disable(uvc);
 	mutex_unlock(&video->mutex);
 
 	file->private_data = NULL;
-- 
GitLab


From 1eee36a5520b5a89fb4d0d6af6f9cb0217a3164f Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Thu, 3 Dec 2020 21:57:00 +0900
Subject: [PATCH 2095/4878] gcc-plugins: simplify GCC plugin-dev capability
 test

commit 1e860048c53ee77ee9870dcce94847a28544b753 upstream.

Linus pointed out a third of the time in the Kconfig parse stage comes
from the single invocation of cc1plus in scripts/gcc-plugin.sh [1],
and directly testing plugin-version.h for existence cuts down the
overhead a lot. [2]

This commit takes one step further to kill the build test entirely.

The small piece of code was probably intended to test the C++ designated
initializer, which was not supported until C++20.

In fact, with -pedantic option given, both GCC and Clang emit a warning.

$ echo 'class test { public: int test; } test = { .test = 1 };' | g++ -x c++ -pedantic - -fsyntax-only
<stdin>:1:43: warning: C++ designated initializers only available with '-std=c++2a' or '-std=gnu++2a' [-Wpedantic]
$ echo 'class test { public: int test; } test = { .test = 1 };' | clang++ -x c++ -pedantic - -fsyntax-only
<stdin>:1:43: warning: designated initializers are a C++20 extension [-Wc++20-designator]
class test { public: int test; } test = { .test = 1 };
                                          ^
1 warning generated.

Otherwise, modern C++ compilers should be able to build the code, and
hopefully skipping this test should not make any practical problem.

Checking the existence of plugin-version.h is still needed to ensure
the plugin-dev package is installed. The test code is now small enough
to be embedded in scripts/gcc-plugins/Kconfig.

[1] https://lore.kernel.org/lkml/CAHk-=wjU4DCuwQ4pXshRbwDCUQB31ScaeuDo1tjoZ0_PjhLHzQ@mail.gmail.com/
[2] https://lore.kernel.org/lkml/CAHk-=whK0aQxs6Q5ijJmYF1n2ch8cVFSUzU5yUM_HOjig=+vnw@mail.gmail.com/

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201203125700.161354-1-masahiroy@kernel.org
Cc: Thomas Lindroth <thomas.lindroth@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/gcc-plugin.sh       | 19 -------------------
 scripts/gcc-plugins/Kconfig |  2 +-
 2 files changed, 1 insertion(+), 20 deletions(-)
 delete mode 100755 scripts/gcc-plugin.sh

diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
deleted file mode 100755
index b79fd0bea8384..0000000000000
--- a/scripts/gcc-plugin.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-
-set -e
-
-srctree=$(dirname "$0")
-
-gccplugins_dir=$($* -print-file-name=plugin)
-
-# we need a c++ compiler that supports the designated initializer GNU extension
-$HOSTCC -c -x c++ -std=gnu++98 - -fsyntax-only -I $srctree/gcc-plugins -I $gccplugins_dir/include 2>/dev/null <<EOF
-#include "gcc-common.h"
-class test {
-public:
-	int test;
-} test = {
-	.test = 1
-};
-EOF
diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig
index ae19fb0243b9b..ab9eb4cbe33a6 100644
--- a/scripts/gcc-plugins/Kconfig
+++ b/scripts/gcc-plugins/Kconfig
@@ -9,7 +9,7 @@ menuconfig GCC_PLUGINS
 	bool "GCC plugins"
 	depends on HAVE_GCC_PLUGINS
 	depends on CC_IS_GCC
-	depends on $(success,$(srctree)/scripts/gcc-plugin.sh $(CC))
+	depends on $(success,test -e $(shell,$(CC) -print-file-name=plugin)/include/plugin-version.h)
 	default y
 	help
 	  GCC plugins are loadable modules that provide extra features to the
-- 
GitLab


From cc97d7321595fc59db5808563efd851e64b675b7 Mon Sep 17 00:00:00 2001
From: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Date: Sat, 26 Dec 2020 13:21:58 -0500
Subject: [PATCH 2096/4878] gcc-plugins: fix gcc 11 indigestion with plugins...

commit 67a5a68013056cbcf0a647e36cb6f4622fb6a470 upstream.

Fedora Rawhide has started including gcc 11,and the g++ compiler
throws a wobbly when it hits scripts/gcc-plugins:

  HOSTCXX scripts/gcc-plugins/latent_entropy_plugin.so
In file included from /usr/include/c++/11/type_traits:35,
                 from /usr/lib/gcc/x86_64-redhat-linux/11/plugin/include/system.h:244,
                 from /usr/lib/gcc/x86_64-redhat-linux/11/plugin/include/gcc-plugin.h:28,
                 from scripts/gcc-plugins/gcc-common.h:7,
                 from scripts/gcc-plugins/latent_entropy_plugin.c:78:
/usr/include/c++/11/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO
 C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options.
   32 | #error This file requires compiler and library support \

In fact, it works just fine with c++11, which has been in gcc since 4.8,
and we now require 4.9 as a minimum.

Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/82487.1609006918@turing-police
Cc: Thomas Lindroth <thomas.lindroth@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/gcc-plugins/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/gcc-plugins/Makefile b/scripts/gcc-plugins/Makefile
index d66949bfeba45..b5487cce69e8e 100644
--- a/scripts/gcc-plugins/Makefile
+++ b/scripts/gcc-plugins/Makefile
@@ -22,9 +22,9 @@ always-y += $(GCC_PLUGIN)
 GCC_PLUGINS_DIR = $(shell $(CC) -print-file-name=plugin)
 
 plugin_cxxflags	= -Wp,-MMD,$(depfile) $(KBUILD_HOSTCXXFLAGS) -fPIC \
-		   -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++98 \
+		   -I $(GCC_PLUGINS_DIR)/include -I $(obj) -std=gnu++11 \
 		   -fno-rtti -fno-exceptions -fasynchronous-unwind-tables \
-		   -ggdb -Wno-narrowing -Wno-unused-variable -Wno-c++11-compat \
+		   -ggdb -Wno-narrowing -Wno-unused-variable \
 		   -Wno-format-diag
 
 plugin_ldflags	= -shared
-- 
GitLab


From 12362cd3a4090d69808e0e721e8a546c2b4feae9 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 28 Nov 2021 22:07:48 +0100
Subject: [PATCH 2097/4878] HID: quirks: Add quirk for the Microsoft Surface 3
 type-cover

commit 9003fbe0f3674b972f56fa7e6bf3ac9dbfc4d0ec upstream.

Add a HID_QUIRK_NO_INIT_REPORTS quirk for the
Microsoft Surface 3 (non pro) type-cover.

Trying to init the reports seems to confuse the type-cover and
causes 2 issues:

1. Despite hid-multitouch sending the command to switch the
touchpad to multitouch mode, it keeps sending events on the
mouse emulation interface.

2. The touchpad completely stops sending events after a reboot.

Adding the HID_QUIRK_NO_INIT_REPORTS quirk fixes both issues.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-ids.h    | 1 +
 drivers/hid/hid-quirks.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 136b58a91c04c..acd22db1caa9a 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -865,6 +865,7 @@
 #define USB_DEVICE_ID_MS_TOUCH_COVER_2   0x07a7
 #define USB_DEVICE_ID_MS_TYPE_COVER_2    0x07a9
 #define USB_DEVICE_ID_MS_POWER_COVER     0x07da
+#define USB_DEVICE_ID_MS_SURFACE3_COVER		0x07de
 #define USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER	0x02fd
 #define USB_DEVICE_ID_MS_PIXART_MOUSE    0x00cb
 #define USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS      0x02e0
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index be53c723c729d..84a30202e3dbe 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -124,6 +124,7 @@ static const struct hid_device_id hid_quirks[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCS, USB_DEVICE_ID_MCS_GAMEPADBLOCK), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PIXART_MOUSE), HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER), HID_QUIRK_NO_INIT_REPORTS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE3_COVER), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_SURFACE_PRO_2), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2), HID_QUIRK_NO_INIT_REPORTS },
-- 
GitLab


From 2298d5edd83703ca56fb3f1b4ec8a026a69c4e48 Mon Sep 17 00:00:00 2001
From: xiazhengqiao <xiazhengqiao@huaqin.corp-partner.google.com>
Date: Fri, 3 Dec 2021 11:01:19 +0800
Subject: [PATCH 2098/4878] HID: google: add eel USB id

commit caff009098e6cf59fd6ac21c3a3befcc854978b4 upstream.

Add one additional hammer-like device.

Signed-off-by: xiazhengqiao <xiazhengqiao@huaqin.corp-partner.google.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211203030119.28612-1-xiazhengqiao@huaqin.corp-partner.google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-google-hammer.c | 2 ++
 drivers/hid/hid-ids.h           | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
index 2a176f77b32e9..0476301983964 100644
--- a/drivers/hid/hid-google-hammer.c
+++ b/drivers/hid/hid-google-hammer.c
@@ -528,6 +528,8 @@ static void hammer_remove(struct hid_device *hdev)
 static const struct hid_device_id hammer_devices[] = {
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_DON) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_EEL) },
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
 		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_HAMMER) },
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index acd22db1caa9a..370ec4402ebe3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -488,6 +488,7 @@
 #define USB_DEVICE_ID_GOOGLE_MAGNEMITE	0x503d
 #define USB_DEVICE_ID_GOOGLE_MOONBALL	0x5044
 #define USB_DEVICE_ID_GOOGLE_DON	0x5050
+#define USB_DEVICE_ID_GOOGLE_EEL	0x5057
 
 #define USB_VENDOR_ID_GOTOP		0x08f2
 #define USB_DEVICE_ID_SUPER_Q2		0x007f
-- 
GitLab


From 61144329606cb9518642b7d2e940b21eb3214204 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 1 Dec 2021 19:35:01 +0100
Subject: [PATCH 2099/4878] HID: add hid_is_usb() function to make it simpler
 for USB detection

commit f83baa0cb6cfc92ebaf7f9d3a99d7e34f2e77a8a upstream.

A number of HID drivers already call hid_is_using_ll_driver() but only
for the detection of if this is a USB device or not.  Make this more
obvious by creating hid_is_usb() and calling the function that way.

Also converts the existing hid_is_using_ll_driver() functions to use the
new call.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-asus.c           | 6 ++----
 drivers/hid/hid-logitech-dj.c    | 2 +-
 drivers/hid/hid-u2fzero.c        | 2 +-
 drivers/hid/hid-uclogic-params.c | 3 +--
 drivers/hid/wacom_sys.c          | 2 +-
 include/linux/hid.h              | 5 +++++
 6 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index c183caf89d492..f85c6e3309a09 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -918,8 +918,7 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
 		drvdata->tp = &asus_i2c_tp;
 
-	if ((drvdata->quirks & QUIRK_T100_KEYBOARD) &&
-	    hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+	if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_usb(hdev)) {
 		struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 
 		if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
@@ -947,8 +946,7 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		drvdata->tp = &asus_t100chi_tp;
 	}
 
-	if ((drvdata->quirks & QUIRK_MEDION_E1239T) &&
-	    hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+	if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_usb(hdev)) {
 		struct usb_host_interface *alt =
 			to_usb_interface(hdev->dev.parent)->altsetting;
 
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 271bd8d243395..a311b0a33eba7 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -1693,7 +1693,7 @@ static int logi_dj_probe(struct hid_device *hdev,
 	case recvr_type_27mhz:		no_dj_interfaces = 2; break;
 	case recvr_type_bluetooth:	no_dj_interfaces = 2; break;
 	}
-	if (hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+	if (hid_is_usb(hdev)) {
 		intf = to_usb_interface(hdev->dev.parent);
 		if (intf && intf->altsetting->desc.bInterfaceNumber >=
 							no_dj_interfaces) {
diff --git a/drivers/hid/hid-u2fzero.c b/drivers/hid/hid-u2fzero.c
index 67ae2b18e33ac..ac3fd870673d2 100644
--- a/drivers/hid/hid-u2fzero.c
+++ b/drivers/hid/hid-u2fzero.c
@@ -290,7 +290,7 @@ static int u2fzero_probe(struct hid_device *hdev,
 	unsigned int minor;
 	int ret;
 
-	if (!hid_is_using_ll_driver(hdev, &usb_hid_driver))
+	if (!hid_is_usb(hdev))
 		return -EINVAL;
 
 	dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index d26d8cd98efcf..dd05bed4ca53a 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -841,8 +841,7 @@ int uclogic_params_init(struct uclogic_params *params,
 	struct uclogic_params p = {0, };
 
 	/* Check arguments */
-	if (params == NULL || hdev == NULL ||
-	    !hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
+	if (params == NULL || hdev == NULL || !hid_is_usb(hdev)) {
 		rc = -EINVAL;
 		goto cleanup;
 	}
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 73dafa60080f1..e94ec84aec6a9 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -2217,7 +2217,7 @@ static void wacom_update_name(struct wacom *wacom, const char *suffix)
 	if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) {
 		char *product_name = wacom->hdev->name;
 
-		if (hid_is_using_ll_driver(wacom->hdev, &usb_hid_driver)) {
+		if (hid_is_usb(wacom->hdev)) {
 			struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent);
 			struct usb_device *dev = interface_to_usbdev(intf);
 			product_name = dev->product;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 6ed2a97eb55f1..fc56d53cc68bf 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -833,6 +833,11 @@ static inline bool hid_is_using_ll_driver(struct hid_device *hdev,
 	return hdev->ll_driver == driver;
 }
 
+static inline bool hid_is_usb(struct hid_device *hdev)
+{
+	return hid_is_using_ll_driver(hdev, &usb_hid_driver);
+}
+
 #define	PM_HINT_FULLON	1<<5
 #define PM_HINT_NORMAL	1<<1
 
-- 
GitLab


From 28989ed4d79e95dc59de6143c81c5826251b85e4 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 3 Dec 2021 09:12:31 +0100
Subject: [PATCH 2100/4878] HID: add USB_HID dependancy to hid-prodikeys

commit 30cb3c2ad24b66fb7639a6d1f4390c74d6e68f94 upstream.

The prodikeys HID driver only controls USB devices, yet did not have a
dependancy on USB_HID.  This causes build errors on some configurations
like nios2 when building due to new changes to the prodikeys driver.

Reported-by: kernel test robot <lkp@intel.com>
Cc: stable@vger.kernel.org
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211203081231.2856936-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 54bc563a8dff1..1aa4bdee5e213 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -245,7 +245,7 @@ config HID_MACALLY
 
 config HID_PRODIKEYS
 	tristate "Prodikeys PC-MIDI Keyboard support"
-	depends on HID && SND
+	depends on USB_HID && SND
 	select SND_RAWMIDI
 	help
 	Support for Prodikeys PC-MIDI Keyboard device support.
-- 
GitLab


From a7e9c5ddf562cf1923b21e5a085567807a059046 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 3 Dec 2021 08:59:27 +0100
Subject: [PATCH 2101/4878] HID: add USB_HID dependancy to hid-chicony

commit d080811f27936f712f619f847389f403ac873b8f upstream.

The chicony HID driver only controls USB devices, yet did not have a
dependancy on USB_HID.  This causes build errors on some configurations
like sparc when building due to new changes to the chicony driver.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: stable@vger.kernel.org
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211203075927.2829218-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 1aa4bdee5e213..0d9fc1c879818 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -207,7 +207,7 @@ config HID_CHERRY
 
 config HID_CHICONY
 	tristate "Chicony devices"
-	depends on HID
+	depends on USB_HID
 	default !EXPERT
 	help
 	Support for Chicony Tactical pad and special keys on Chicony keyboards.
-- 
GitLab


From d877651afd60dcbbcdc31f9efded3c27813afd1a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 2 Dec 2021 12:48:19 +0100
Subject: [PATCH 2102/4878] HID: add USB_HID dependancy on some USB HID drivers

commit f237d9028f844a86955fc9da59d7ac4a5c55d7d5 upstream.

Some HID drivers are only for USB drivers, yet did not depend on
CONFIG_USB_HID.  This was hidden by the fact that the USB functions were
stubbed out in the past, but now that drivers are checking for USB
devices properly, build errors can occur with some random
configurations.

Reported-by: kernel test robot <lkp@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211202114819.2511954-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 0d9fc1c879818..f8ad3b2be0bfb 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -214,7 +214,7 @@ config HID_CHICONY
 
 config HID_CORSAIR
 	tristate "Corsair devices"
-	depends on HID && USB && LEDS_CLASS
+	depends on USB_HID && LEDS_CLASS
 	help
 	Support for Corsair devices that are not fully compliant with the
 	HID standard.
@@ -541,7 +541,7 @@ config HID_LENOVO
 
 config HID_LOGITECH
 	tristate "Logitech devices"
-	depends on HID
+	depends on USB_HID
 	depends on LEDS_CLASS
 	default !EXPERT
 	help
@@ -889,7 +889,7 @@ config HID_SAITEK
 
 config HID_SAMSUNG
 	tristate "Samsung InfraRed remote control or keyboards"
-	depends on HID
+	depends on USB_HID
 	help
 	Support for Samsung InfraRed remote control or keyboards.
 
-- 
GitLab


From 6272b17001e6fdcf7b4a16206287010a1523fa6e Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Thu, 2 Dec 2021 10:53:32 +0100
Subject: [PATCH 2103/4878] HID: bigbenff: prevent null pointer dereference

commit 918aa1ef104d286d16b9e7ef139a463ac7a296f0 upstream.

When emulating the device through uhid, there is a chance we don't have
output reports and so report_field is null.

Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211202095334.14399-3-benjamin.tissoires@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-bigbenff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index db6da21ade063..74ad8bf98bfd5 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c
@@ -191,7 +191,7 @@ static void bigben_worker(struct work_struct *work)
 		struct bigben_device, worker);
 	struct hid_field *report_field = bigben->report->field[0];
 
-	if (bigben->removed)
+	if (bigben->removed || !report_field)
 		return;
 
 	if (bigben->work_led) {
-- 
GitLab


From 889c39113f7e2219da49446b7e8772d1f62d0dca Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 1 Dec 2021 19:35:02 +0100
Subject: [PATCH 2104/4878] HID: wacom: fix problems when device is not a valid
 USB device

commit 720ac467204a70308bd687927ed475afb904e11b upstream.

The wacom driver accepts devices of more than just USB types, but some
code paths can cause problems if the device being controlled is not a
USB device due to a lack of checking.  Add the needed checks to ensure
that the USB device accesses are only happening on a "real" USB device,
and not one on some other bus.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/wacom_sys.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index e94ec84aec6a9..329bb1a46f90e 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -726,7 +726,7 @@ static void wacom_retrieve_hid_descriptor(struct hid_device *hdev,
 	 * Skip the query for this type and modify defaults based on
 	 * interface number.
 	 */
-	if (features->type == WIRELESS) {
+	if (features->type == WIRELESS && intf) {
 		if (intf->cur_altsetting->desc.bInterfaceNumber == 0)
 			features->device_type = WACOM_DEVICETYPE_WL_MONITOR;
 		else
@@ -2448,6 +2448,9 @@ static void wacom_wireless_work(struct work_struct *work)
 
 	wacom_destroy_battery(wacom);
 
+	if (!usbdev)
+		return;
+
 	/* Stylus interface */
 	hdev1 = usb_get_intfdata(usbdev->config->interface[1]);
 	wacom1 = hid_get_drvdata(hdev1);
@@ -2727,8 +2730,6 @@ static void wacom_mode_change_work(struct work_struct *work)
 static int wacom_probe(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
-	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	struct usb_device *dev = interface_to_usbdev(intf);
 	struct wacom *wacom;
 	struct wacom_wac *wacom_wac;
 	struct wacom_features *features;
@@ -2763,8 +2764,14 @@ static int wacom_probe(struct hid_device *hdev,
 	wacom_wac->hid_data.inputmode = -1;
 	wacom_wac->mode_report = -1;
 
-	wacom->usbdev = dev;
-	wacom->intf = intf;
+	if (hid_is_usb(hdev)) {
+		struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+		struct usb_device *dev = interface_to_usbdev(intf);
+
+		wacom->usbdev = dev;
+		wacom->intf = intf;
+	}
+
 	mutex_init(&wacom->lock);
 	INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work);
 	INIT_WORK(&wacom->wireless_work, wacom_wireless_work);
-- 
GitLab


From 89f3edc98ffe48557405ecfd9520f73244d099c9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 1 Dec 2021 19:35:03 +0100
Subject: [PATCH 2105/4878] HID: check for valid USB device for many HID
 drivers

commit 93020953d0fa7035fd036ad87a47ae2b7aa4ae33 upstream.

Many HID drivers assume that the HID device assigned to them is a USB
device as that was the only way HID devices used to be able to be
created in Linux.  However, with the additional ways that HID devices
can be created for many different bus types, that is no longer true, so
properly check that we have a USB device associated with the HID device
before allowing a driver that makes this assumption to claim it.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Michael Zaidman <michael.zaidman@gmail.com>
Cc: Stefan Achatz <erazor_de@users.sourceforge.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: linux-input@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
[bentiss: amended for thrustmater.c hunk to apply]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211201183503.2373082-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-chicony.c         |  8 ++++++--
 drivers/hid/hid-corsair.c         |  7 ++++++-
 drivers/hid/hid-elan.c            |  2 +-
 drivers/hid/hid-elo.c             |  3 +++
 drivers/hid/hid-holtek-kbd.c      |  9 +++++++--
 drivers/hid/hid-holtek-mouse.c    |  9 +++++++++
 drivers/hid/hid-lg.c              | 10 ++++++++--
 drivers/hid/hid-prodikeys.c       | 10 ++++++++--
 drivers/hid/hid-roccat-arvo.c     |  3 +++
 drivers/hid/hid-roccat-isku.c     |  3 +++
 drivers/hid/hid-roccat-kone.c     |  3 +++
 drivers/hid/hid-roccat-koneplus.c |  3 +++
 drivers/hid/hid-roccat-konepure.c |  3 +++
 drivers/hid/hid-roccat-kovaplus.c |  3 +++
 drivers/hid/hid-roccat-lua.c      |  3 +++
 drivers/hid/hid-roccat-pyra.c     |  3 +++
 drivers/hid/hid-roccat-ryos.c     |  3 +++
 drivers/hid/hid-roccat-savu.c     |  3 +++
 drivers/hid/hid-samsung.c         |  3 +++
 drivers/hid/hid-uclogic-core.c    |  3 +++
 20 files changed, 84 insertions(+), 10 deletions(-)

diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c
index 3f0ed6a952234..e19e2b5973396 100644
--- a/drivers/hid/hid-chicony.c
+++ b/drivers/hid/hid-chicony.c
@@ -58,8 +58,12 @@ static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		unsigned int *rsize)
 {
-	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	
+	struct usb_interface *intf;
+
+	if (!hid_is_usb(hdev))
+		return rdesc;
+
+	intf = to_usb_interface(hdev->dev.parent);
 	if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
 		/* Change usage maximum and logical maximum from 0x7fff to
 		 * 0x2fff, so they don't exceed HID_MAX_USAGES */
diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c
index 902a60e249ed2..8c895c820b672 100644
--- a/drivers/hid/hid-corsair.c
+++ b/drivers/hid/hid-corsair.c
@@ -553,7 +553,12 @@ static int corsair_probe(struct hid_device *dev, const struct hid_device_id *id)
 	int ret;
 	unsigned long quirks = id->driver_data;
 	struct corsair_drvdata *drvdata;
-	struct usb_interface *usbif = to_usb_interface(dev->dev.parent);
+	struct usb_interface *usbif;
+
+	if (!hid_is_usb(dev))
+		return -EINVAL;
+
+	usbif = to_usb_interface(dev->dev.parent);
 
 	drvdata = devm_kzalloc(&dev->dev, sizeof(struct corsair_drvdata),
 			       GFP_KERNEL);
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index dae193749d443..0e8f424025fea 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -50,7 +50,7 @@ struct elan_drvdata {
 
 static int is_not_elan_touchpad(struct hid_device *hdev)
 {
-	if (hdev->bus == BUS_USB) {
+	if (hid_is_usb(hdev)) {
 		struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 
 		return (intf->altsetting->desc.bInterfaceNumber !=
diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c
index 0d22713a38742..2876cb6a7dcab 100644
--- a/drivers/hid/hid-elo.c
+++ b/drivers/hid/hid-elo.c
@@ -229,6 +229,9 @@ static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	struct elo_priv *priv;
 	int ret;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
diff --git a/drivers/hid/hid-holtek-kbd.c b/drivers/hid/hid-holtek-kbd.c
index 0a38e8e9bc783..403506b9697e7 100644
--- a/drivers/hid/hid-holtek-kbd.c
+++ b/drivers/hid/hid-holtek-kbd.c
@@ -140,12 +140,17 @@ static int holtek_kbd_input_event(struct input_dev *dev, unsigned int type,
 static int holtek_kbd_probe(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
-	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	int ret = hid_parse(hdev);
+	struct usb_interface *intf;
+	int ret;
+
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
 
+	ret = hid_parse(hdev);
 	if (!ret)
 		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 
+	intf = to_usb_interface(hdev->dev.parent);
 	if (!ret && intf->cur_altsetting->desc.bInterfaceNumber == 1) {
 		struct hid_input *hidinput;
 		list_for_each_entry(hidinput, &hdev->inputs, list) {
diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c
index 195b735b001d0..b7172c48ef9f0 100644
--- a/drivers/hid/hid-holtek-mouse.c
+++ b/drivers/hid/hid-holtek-mouse.c
@@ -62,6 +62,14 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	return rdesc;
 }
 
+static int holtek_mouse_probe(struct hid_device *hdev,
+			      const struct hid_device_id *id)
+{
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+	return 0;
+}
+
 static const struct hid_device_id holtek_mouse_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
 			USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
@@ -83,6 +91,7 @@ static struct hid_driver holtek_mouse_driver = {
 	.name = "holtek_mouse",
 	.id_table = holtek_mouse_devices,
 	.report_fixup = holtek_mouse_report_fixup,
+	.probe = holtek_mouse_probe,
 };
 
 module_hid_driver(holtek_mouse_driver);
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 0dc7cdfc56f77..2c7e7c089bf99 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -769,12 +769,18 @@ static int lg_raw_event(struct hid_device *hdev, struct hid_report *report,
 
 static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
-	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
-	__u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
+	struct usb_interface *iface;
+	__u8 iface_num;
 	unsigned int connect_mask = HID_CONNECT_DEFAULT;
 	struct lg_drv_data *drv_data;
 	int ret;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
+	iface = to_usb_interface(hdev->dev.parent);
+	iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
+
 	/* G29 only work with the 1st interface */
 	if ((hdev->product == USB_DEVICE_ID_LOGITECH_G29_WHEEL) &&
 	    (iface_num != 0)) {
diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 2666af02d5c1a..e4e9471d0f1e9 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -798,12 +798,18 @@ static int pk_raw_event(struct hid_device *hdev, struct hid_report *report,
 static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret;
-	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
+	struct usb_interface *intf;
+	unsigned short ifnum;
 	unsigned long quirks = id->driver_data;
 	struct pk_device *pk;
 	struct pcmidi_snd *pm = NULL;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
+	intf = to_usb_interface(hdev->dev.parent);
+	ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
+
 	pk = kzalloc(sizeof(*pk), GFP_KERNEL);
 	if (pk == NULL) {
 		hid_err(hdev, "can't alloc descriptor\n");
diff --git a/drivers/hid/hid-roccat-arvo.c b/drivers/hid/hid-roccat-arvo.c
index ffcd444ae2ba6..4b18e1a4fc7ac 100644
--- a/drivers/hid/hid-roccat-arvo.c
+++ b/drivers/hid/hid-roccat-arvo.c
@@ -344,6 +344,9 @@ static int arvo_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
index ce5f22519956a..e95d59cd8d075 100644
--- a/drivers/hid/hid-roccat-isku.c
+++ b/drivers/hid/hid-roccat-isku.c
@@ -324,6 +324,9 @@ static int isku_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index 1ca64481145ee..e8522eacf7973 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -749,6 +749,9 @@ static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 0316edf8c5bb4..1896c69ea512f 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -431,6 +431,9 @@ static int koneplus_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-konepure.c b/drivers/hid/hid-roccat-konepure.c
index 5248b3c7cf785..cf8eeb33a1257 100644
--- a/drivers/hid/hid-roccat-konepure.c
+++ b/drivers/hid/hid-roccat-konepure.c
@@ -133,6 +133,9 @@ static int konepure_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c
index 9600128815705..6fb9b9563769d 100644
--- a/drivers/hid/hid-roccat-kovaplus.c
+++ b/drivers/hid/hid-roccat-kovaplus.c
@@ -501,6 +501,9 @@ static int kovaplus_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-lua.c b/drivers/hid/hid-roccat-lua.c
index 4a88a76d5c622..d5ddf0d68346b 100644
--- a/drivers/hid/hid-roccat-lua.c
+++ b/drivers/hid/hid-roccat-lua.c
@@ -160,6 +160,9 @@ static int lua_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 989927defe8db..4fcc8e7d276f2 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -449,6 +449,9 @@ static int pyra_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-ryos.c b/drivers/hid/hid-roccat-ryos.c
index 3956a6c9c5217..5bf1971a2b14d 100644
--- a/drivers/hid/hid-roccat-ryos.c
+++ b/drivers/hid/hid-roccat-ryos.c
@@ -141,6 +141,9 @@ static int ryos_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-roccat-savu.c b/drivers/hid/hid-roccat-savu.c
index 818701f7a0281..a784bb4ee6512 100644
--- a/drivers/hid/hid-roccat-savu.c
+++ b/drivers/hid/hid-roccat-savu.c
@@ -113,6 +113,9 @@ static int savu_probe(struct hid_device *hdev,
 {
 	int retval;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	retval = hid_parse(hdev);
 	if (retval) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-samsung.c b/drivers/hid/hid-samsung.c
index 2e1c31156eca0..cf5992e970940 100644
--- a/drivers/hid/hid-samsung.c
+++ b/drivers/hid/hid-samsung.c
@@ -152,6 +152,9 @@ static int samsung_probe(struct hid_device *hdev,
 	int ret;
 	unsigned int cmask = HID_CONNECT_DEFAULT;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	ret = hid_parse(hdev);
 	if (ret) {
 		hid_err(hdev, "parse failed\n");
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index 8e9c9e646cb7d..4edb241957040 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -164,6 +164,9 @@ static int uclogic_probe(struct hid_device *hdev,
 	struct uclogic_drvdata *drvdata = NULL;
 	bool params_initialized = false;
 
+	if (!hid_is_usb(hdev))
+		return -EINVAL;
+
 	/*
 	 * libinput requires the pad interface to be on a different node
 	 * than the pen, so use QUIRK_MULTI_INPUT for all tablets.
-- 
GitLab


From 05eb0e4a12b29f76543d78df17b770fc257dbcfe Mon Sep 17 00:00:00 2001
From: Stefano Brivio <sbrivio@redhat.com>
Date: Sat, 27 Nov 2021 11:33:37 +0100
Subject: [PATCH 2106/4878] nft_set_pipapo: Fix bucket load in AVX2 lookup
 routine for six 8-bit groups

commit b7e945e228d7df1b1473ef6fd2cdec67433065fb upstream.

The sixth byte of packet data has to be looked up in the sixth group,
not in the seventh one, even if we load the bucket data into ymm6
(and not ymm5, for convenience of tracking stalls).

Without this fix, matching on a MAC address as first field of a set,
if 8-bit groups are selected (due to a small set size) would fail,
that is, the given MAC address would never match.

Reported-by: Nikita Yushchenko <nikita.yushchenko@virtuozzo.com>
Cc: <stable@vger.kernel.org> # 5.6.x
Fixes: 7400b063969b ("nft_set_pipapo: Introduce AVX2-based lookup implementation")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Tested-By: Nikita Yushchenko <nikita.yushchenko@virtuozzo.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nft_set_pipapo_avx2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nft_set_pipapo_avx2.c b/net/netfilter/nft_set_pipapo_avx2.c
index eabdb8d552eef..10332178da8c5 100644
--- a/net/netfilter/nft_set_pipapo_avx2.c
+++ b/net/netfilter/nft_set_pipapo_avx2.c
@@ -887,7 +887,7 @@ static int nft_pipapo_avx2_lookup_8b_6(unsigned long *map, unsigned long *fill,
 			NFT_PIPAPO_AVX2_BUCKET_LOAD8(4,  lt, 4, pkt[4], bsize);
 
 			NFT_PIPAPO_AVX2_AND(5, 0, 1);
-			NFT_PIPAPO_AVX2_BUCKET_LOAD8(6,  lt, 6, pkt[5], bsize);
+			NFT_PIPAPO_AVX2_BUCKET_LOAD8(6,  lt, 5, pkt[5], bsize);
 			NFT_PIPAPO_AVX2_AND(7, 2, 3);
 
 			/* Stall */
-- 
GitLab


From d60dd3685dc951ecc4fdb0cf802a61bb373fd4c4 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Mon, 29 Nov 2021 14:19:58 -0500
Subject: [PATCH 2107/4878] IB/hfi1: Insure use of smp_processor_id() is
 preempt disabled

commit b6d57e24ce6cc3df8a8845e1b193e88a65d501b1 upstream.

The following BUG has just surfaced with our 5.16 testing:

  BUG: using smp_processor_id() in preemptible [00000000] code: mpicheck/1581081
  caller is sdma_select_user_engine+0x72/0x210 [hfi1]
  CPU: 0 PID: 1581081 Comm: mpicheck Tainted: G S                5.16.0-rc1+ #1
  Hardware name: Intel Corporation S2600WT2R/S2600WT2R, BIOS SE5C610.86B.01.01.0016.033120161139 03/31/2016
  Call Trace:
   <TASK>
   dump_stack_lvl+0x33/0x42
   check_preemption_disabled+0xbf/0xe0
   sdma_select_user_engine+0x72/0x210 [hfi1]
   ? _raw_spin_unlock_irqrestore+0x1f/0x31
   ? hfi1_mmu_rb_insert+0x6b/0x200 [hfi1]
   hfi1_user_sdma_process_request+0xa02/0x1120 [hfi1]
   ? hfi1_write_iter+0xb8/0x200 [hfi1]
   hfi1_write_iter+0xb8/0x200 [hfi1]
   do_iter_readv_writev+0x163/0x1c0
   do_iter_write+0x80/0x1c0
   vfs_writev+0x88/0x1a0
   ? recalibrate_cpu_khz+0x10/0x10
   ? ktime_get+0x3e/0xa0
   ? __fget_files+0x66/0xa0
   do_writev+0x65/0x100
   do_syscall_64+0x3a/0x80

Fix this long standing bug by moving the smp_processor_id() to after the
rcu_read_lock().

The rcu_read_lock() implicitly disables preemption.

Link: https://lore.kernel.org/r/20211129191958.101968.87329.stgit@awfm-01.cornelisnetworks.com
Cc: stable@vger.kernel.org
Fixes: 0cb2aa690c7e ("IB/hfi1: Add sysfs interface for affinity setup")
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hfi1/sdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index ac6f87137b637..0b73dc7847aae 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -880,8 +880,8 @@ struct sdma_engine *sdma_select_user_engine(struct hfi1_devdata *dd,
 	if (current->nr_cpus_allowed != 1)
 		goto out;
 
-	cpu_id = smp_processor_id();
 	rcu_read_lock();
+	cpu_id = smp_processor_id();
 	rht_node = rhashtable_lookup(dd->sdma_rht, &cpu_id,
 				     sdma_rht_params);
 
-- 
GitLab


From d87c10607b5b18e12bf1221e34caaa6464273711 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Mon, 29 Nov 2021 14:20:03 -0500
Subject: [PATCH 2108/4878] IB/hfi1: Fix early init panic

commit f6a3cfec3c01f9983e961c3327cef0db129a3c43 upstream.

The following trace can be observed with an init failure such as firmware
load failures:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
  PGD 0 P4D 0
  Oops: 0010 [#1] SMP PTI
  CPU: 0 PID: 537 Comm: kworker/0:3 Tainted: G           OE    --------- -  - 4.18.0-240.el8.x86_64 #1
  Workqueue: events work_for_cpu_fn
  RIP: 0010:0x0
  Code: Bad RIP value.
  RSP: 0000:ffffae5f878a3c98 EFLAGS: 00010046
  RAX: 0000000000000000 RBX: ffff95e48e025c00 RCX: 0000000000000000
  RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff95e48e025c00
  RBP: ffff95e4bf3660a4 R08: 0000000000000000 R09: ffffffff86d5e100
  R10: ffff95e49e1de600 R11: 0000000000000001 R12: ffff95e4bf366180
  R13: ffff95e48e025c00 R14: ffff95e4bf366028 R15: ffff95e4bf366000
  FS:  0000000000000000(0000) GS:ffff95e4df200000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: ffffffffffffffd6 CR3: 0000000f86a0a003 CR4: 00000000001606f0
  Call Trace:
   receive_context_interrupt+0x1f/0x40 [hfi1]
   __free_irq+0x201/0x300
   free_irq+0x2e/0x60
   pci_free_irq+0x18/0x30
   msix_free_irq.part.2+0x46/0x80 [hfi1]
   msix_clean_up_interrupts+0x2b/0x70 [hfi1]
   hfi1_init_dd+0x640/0x1a90 [hfi1]
   do_init_one.isra.19+0x34d/0x680 [hfi1]
   local_pci_probe+0x41/0x90
   work_for_cpu_fn+0x16/0x20
   process_one_work+0x1a7/0x360
   worker_thread+0x1cf/0x390
   ? create_worker+0x1a0/0x1a0
   kthread+0x112/0x130
   ? kthread_flush_work_fn+0x10/0x10
   ret_from_fork+0x35/0x40

The free_irq() results in a callback to the registered interrupt handler,
and rcd->do_interrupt is NULL because the receive context data structures
are not fully initialized.

Fix by ensuring that the do_interrupt is always assigned and adding a
guards in the slow path handler to detect and handle a partially
initialized receive context and noop the receive.

Link: https://lore.kernel.org/r/20211129192003.101968.33612.stgit@awfm-01.cornelisnetworks.com
Cc: stable@vger.kernel.org
Fixes: b0ba3c18d6bf ("IB/hfi1: Move normal functions from hfi1_devdata to const array")
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hfi1/chip.c   | 2 ++
 drivers/infiniband/hw/hfi1/driver.c | 2 ++
 drivers/infiniband/hw/hfi1/init.c   | 5 ++---
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index c87b94ea29397..88476a1a601a4 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -8456,6 +8456,8 @@ static void receive_interrupt_common(struct hfi1_ctxtdata *rcd)
  */
 static void __hfi1_rcd_eoi_intr(struct hfi1_ctxtdata *rcd)
 {
+	if (!rcd->rcvhdrq)
+		return;
 	clear_recv_intr(rcd);
 	if (check_packet_present(rcd))
 		force_recv_intr(rcd);
diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c
index a40701a6e1b64..808571855ed15 100644
--- a/drivers/infiniband/hw/hfi1/driver.c
+++ b/drivers/infiniband/hw/hfi1/driver.c
@@ -1053,6 +1053,8 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread)
 	struct hfi1_packet packet;
 	int skip_pkt = 0;
 
+	if (!rcd->rcvhdrq)
+		return RCV_PKT_OK;
 	/* Control context will always use the slow path interrupt handler */
 	needset = (rcd->ctxt == HFI1_CTRL_CTXT) ? 0 : 1;
 
diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index b6e453e9ba236..dbbf51cada9fd 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -154,7 +154,6 @@ static int hfi1_create_kctxt(struct hfi1_devdata *dd,
 	rcd->fast_handler = get_dma_rtail_setting(rcd) ?
 				handle_receive_interrupt_dma_rtail :
 				handle_receive_interrupt_nodma_rtail;
-	rcd->slow_handler = handle_receive_interrupt;
 
 	hfi1_set_seq_cnt(rcd, 1);
 
@@ -375,6 +374,8 @@ int hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, int numa,
 		rcd->numa_id = numa;
 		rcd->rcv_array_groups = dd->rcv_entries.ngroups;
 		rcd->rhf_rcv_function_map = normal_rhf_rcv_functions;
+		rcd->slow_handler = handle_receive_interrupt;
+		rcd->do_interrupt = rcd->slow_handler;
 		rcd->msix_intr = CCE_NUM_MSIX_VECTORS;
 
 		mutex_init(&rcd->exp_mutex);
@@ -939,8 +940,6 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit)
 		if (!rcd)
 			continue;
 
-		rcd->do_interrupt = &handle_receive_interrupt;
-
 		lastfail = hfi1_create_rcvhdrq(dd, rcd);
 		if (!lastfail)
 			lastfail = hfi1_setup_eagerbufs(rcd);
-- 
GitLab


From 2c08271f4ed0e24633b3f81ceff61052b9d45efc Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Mon, 29 Nov 2021 14:20:08 -0500
Subject: [PATCH 2109/4878] IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr

commit 60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1 upstream.

This buffer is currently allocated in hfi1_init():

	if (reinit)
		ret = init_after_reset(dd);
	else
		ret = loadtime_init(dd);
	if (ret)
		goto done;

	/* allocate dummy tail memory for all receive contexts */
	dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,
							 sizeof(u64),
							 &dd->rcvhdrtail_dummy_dma,
							 GFP_KERNEL);

	if (!dd->rcvhdrtail_dummy_kvaddr) {
		dd_dev_err(dd, "cannot allocate dummy tail memory\n");
		ret = -ENOMEM;
		goto done;
	}

The reinit triggered path will overwrite the old allocation and leak it.

Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation
to hfi1_free_devdata().

Link: https://lore.kernel.org/r/20211129192008.101968.91302.stgit@awfm-01.cornelisnetworks.com
Cc: stable@vger.kernel.org
Fixes: 46b010d3eeb8 ("staging/rdma/hfi1: Workaround to prevent corruption during packet delivery")
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hfi1/init.c | 33 +++++++++++++------------------
 1 file changed, 14 insertions(+), 19 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index dbbf51cada9fd..e919817390171 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -916,18 +916,6 @@ int hfi1_init(struct hfi1_devdata *dd, int reinit)
 	if (ret)
 		goto done;
 
-	/* allocate dummy tail memory for all receive contexts */
-	dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,
-							 sizeof(u64),
-							 &dd->rcvhdrtail_dummy_dma,
-							 GFP_KERNEL);
-
-	if (!dd->rcvhdrtail_dummy_kvaddr) {
-		dd_dev_err(dd, "cannot allocate dummy tail memory\n");
-		ret = -ENOMEM;
-		goto done;
-	}
-
 	/* dd->rcd can be NULL if early initialization failed */
 	for (i = 0; dd->rcd && i < dd->first_dyn_alloc_ctxt; ++i) {
 		/*
@@ -1241,6 +1229,11 @@ void hfi1_free_devdata(struct hfi1_devdata *dd)
 	dd->tx_opstats    = NULL;
 	kfree(dd->comp_vect);
 	dd->comp_vect = NULL;
+	if (dd->rcvhdrtail_dummy_kvaddr)
+		dma_free_coherent(&dd->pcidev->dev, sizeof(u64),
+				  (void *)dd->rcvhdrtail_dummy_kvaddr,
+				  dd->rcvhdrtail_dummy_dma);
+	dd->rcvhdrtail_dummy_kvaddr = NULL;
 	sdma_clean(dd, dd->num_sdma);
 	rvt_dealloc_device(&dd->verbs_dev.rdi);
 }
@@ -1338,6 +1331,15 @@ static struct hfi1_devdata *hfi1_alloc_devdata(struct pci_dev *pdev,
 		goto bail;
 	}
 
+	/* allocate dummy tail memory for all receive contexts */
+	dd->rcvhdrtail_dummy_kvaddr =
+		dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64),
+				   &dd->rcvhdrtail_dummy_dma, GFP_KERNEL);
+	if (!dd->rcvhdrtail_dummy_kvaddr) {
+		ret = -ENOMEM;
+		goto bail;
+	}
+
 	atomic_set(&dd->ipoib_rsm_usr_num, 0);
 	return dd;
 
@@ -1545,13 +1547,6 @@ static void cleanup_device_data(struct hfi1_devdata *dd)
 
 	free_credit_return(dd);
 
-	if (dd->rcvhdrtail_dummy_kvaddr) {
-		dma_free_coherent(&dd->pcidev->dev, sizeof(u64),
-				  (void *)dd->rcvhdrtail_dummy_kvaddr,
-				  dd->rcvhdrtail_dummy_dma);
-		dd->rcvhdrtail_dummy_kvaddr = NULL;
-	}
-
 	/*
 	 * Free any resources still in use (usually just kernel contexts)
 	 * at unload; we do for ctxtcnt, because that's what we allocate.
-- 
GitLab


From 854a2bede1f03de960e4836236a260a4441af0ef Mon Sep 17 00:00:00 2001
From: Jimmy Assarsson <extja@kvaser.com>
Date: Wed, 8 Dec 2021 16:21:22 +0100
Subject: [PATCH 2110/4878] can: kvaser_usb: get CAN clock frequency from
 device

commit fb12797ab1fef480ad8a32a30984844444eeb00d upstream.

The CAN clock frequency is used when calculating the CAN bittiming
parameters. When wrong clock frequency is used, the device may end up
with wrong bittiming parameters, depending on user requested bittiming
parameters.

To avoid this, get the CAN clock frequency from the device. Various
existing Kvaser Leaf products use different CAN clocks.

Fixes: 080f40a6fa28 ("can: kvaser_usb: Add support for Kvaser CAN/USB devices")
Link: https://lore.kernel.org/all/20211208152122.250852-2-extja@kvaser.com
Cc: stable@vger.kernel.org
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/can/usb/kvaser_usb/kvaser_usb_leaf.c  | 101 +++++++++++++-----
 1 file changed, 73 insertions(+), 28 deletions(-)

diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
index 1b9957f12459a..8b5d1add899a6 100644
--- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
+++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c
@@ -28,10 +28,6 @@
 
 #include "kvaser_usb.h"
 
-/* Forward declaration */
-static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg;
-
-#define CAN_USB_CLOCK			8000000
 #define MAX_USBCAN_NET_DEVICES		2
 
 /* Command header size */
@@ -80,6 +76,12 @@ static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg;
 
 #define CMD_LEAF_LOG_MESSAGE		106
 
+/* Leaf frequency options */
+#define KVASER_USB_LEAF_SWOPTION_FREQ_MASK 0x60
+#define KVASER_USB_LEAF_SWOPTION_FREQ_16_MHZ_CLK 0
+#define KVASER_USB_LEAF_SWOPTION_FREQ_32_MHZ_CLK BIT(5)
+#define KVASER_USB_LEAF_SWOPTION_FREQ_24_MHZ_CLK BIT(6)
+
 /* error factors */
 #define M16C_EF_ACKE			BIT(0)
 #define M16C_EF_CRCE			BIT(1)
@@ -340,6 +342,50 @@ struct kvaser_usb_err_summary {
 	};
 };
 
+static const struct can_bittiming_const kvaser_usb_leaf_bittiming_const = {
+	.name = "kvaser_usb",
+	.tseg1_min = KVASER_USB_TSEG1_MIN,
+	.tseg1_max = KVASER_USB_TSEG1_MAX,
+	.tseg2_min = KVASER_USB_TSEG2_MIN,
+	.tseg2_max = KVASER_USB_TSEG2_MAX,
+	.sjw_max = KVASER_USB_SJW_MAX,
+	.brp_min = KVASER_USB_BRP_MIN,
+	.brp_max = KVASER_USB_BRP_MAX,
+	.brp_inc = KVASER_USB_BRP_INC,
+};
+
+static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_8mhz = {
+	.clock = {
+		.freq = 8000000,
+	},
+	.timestamp_freq = 1,
+	.bittiming_const = &kvaser_usb_leaf_bittiming_const,
+};
+
+static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_16mhz = {
+	.clock = {
+		.freq = 16000000,
+	},
+	.timestamp_freq = 1,
+	.bittiming_const = &kvaser_usb_leaf_bittiming_const,
+};
+
+static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_24mhz = {
+	.clock = {
+		.freq = 24000000,
+	},
+	.timestamp_freq = 1,
+	.bittiming_const = &kvaser_usb_leaf_bittiming_const,
+};
+
+static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg_32mhz = {
+	.clock = {
+		.freq = 32000000,
+	},
+	.timestamp_freq = 1,
+	.bittiming_const = &kvaser_usb_leaf_bittiming_const,
+};
+
 static void *
 kvaser_usb_leaf_frame_to_cmd(const struct kvaser_usb_net_priv *priv,
 			     const struct sk_buff *skb, int *frame_len,
@@ -471,6 +517,27 @@ static int kvaser_usb_leaf_send_simple_cmd(const struct kvaser_usb *dev,
 	return rc;
 }
 
+static void kvaser_usb_leaf_get_software_info_leaf(struct kvaser_usb *dev,
+						   const struct leaf_cmd_softinfo *softinfo)
+{
+	u32 sw_options = le32_to_cpu(softinfo->sw_options);
+
+	dev->fw_version = le32_to_cpu(softinfo->fw_version);
+	dev->max_tx_urbs = le16_to_cpu(softinfo->max_outstanding_tx);
+
+	switch (sw_options & KVASER_USB_LEAF_SWOPTION_FREQ_MASK) {
+	case KVASER_USB_LEAF_SWOPTION_FREQ_16_MHZ_CLK:
+		dev->cfg = &kvaser_usb_leaf_dev_cfg_16mhz;
+		break;
+	case KVASER_USB_LEAF_SWOPTION_FREQ_24_MHZ_CLK:
+		dev->cfg = &kvaser_usb_leaf_dev_cfg_24mhz;
+		break;
+	case KVASER_USB_LEAF_SWOPTION_FREQ_32_MHZ_CLK:
+		dev->cfg = &kvaser_usb_leaf_dev_cfg_32mhz;
+		break;
+	}
+}
+
 static int kvaser_usb_leaf_get_software_info_inner(struct kvaser_usb *dev)
 {
 	struct kvaser_cmd cmd;
@@ -486,14 +553,13 @@ static int kvaser_usb_leaf_get_software_info_inner(struct kvaser_usb *dev)
 
 	switch (dev->card_data.leaf.family) {
 	case KVASER_LEAF:
-		dev->fw_version = le32_to_cpu(cmd.u.leaf.softinfo.fw_version);
-		dev->max_tx_urbs =
-			le16_to_cpu(cmd.u.leaf.softinfo.max_outstanding_tx);
+		kvaser_usb_leaf_get_software_info_leaf(dev, &cmd.u.leaf.softinfo);
 		break;
 	case KVASER_USBCAN:
 		dev->fw_version = le32_to_cpu(cmd.u.usbcan.softinfo.fw_version);
 		dev->max_tx_urbs =
 			le16_to_cpu(cmd.u.usbcan.softinfo.max_outstanding_tx);
+		dev->cfg = &kvaser_usb_leaf_dev_cfg_8mhz;
 		break;
 	}
 
@@ -1225,24 +1291,11 @@ static int kvaser_usb_leaf_init_card(struct kvaser_usb *dev)
 {
 	struct kvaser_usb_dev_card_data *card_data = &dev->card_data;
 
-	dev->cfg = &kvaser_usb_leaf_dev_cfg;
 	card_data->ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 
 	return 0;
 }
 
-static const struct can_bittiming_const kvaser_usb_leaf_bittiming_const = {
-	.name = "kvaser_usb",
-	.tseg1_min = KVASER_USB_TSEG1_MIN,
-	.tseg1_max = KVASER_USB_TSEG1_MAX,
-	.tseg2_min = KVASER_USB_TSEG2_MIN,
-	.tseg2_max = KVASER_USB_TSEG2_MAX,
-	.sjw_max = KVASER_USB_SJW_MAX,
-	.brp_min = KVASER_USB_BRP_MIN,
-	.brp_max = KVASER_USB_BRP_MAX,
-	.brp_inc = KVASER_USB_BRP_INC,
-};
-
 static int kvaser_usb_leaf_set_bittiming(struct net_device *netdev)
 {
 	struct kvaser_usb_net_priv *priv = netdev_priv(netdev);
@@ -1348,11 +1401,3 @@ const struct kvaser_usb_dev_ops kvaser_usb_leaf_dev_ops = {
 	.dev_read_bulk_callback = kvaser_usb_leaf_read_bulk_callback,
 	.dev_frame_to_cmd = kvaser_usb_leaf_frame_to_cmd,
 };
-
-static const struct kvaser_usb_dev_cfg kvaser_usb_leaf_dev_cfg = {
-	.clock = {
-		.freq = CAN_USB_CLOCK,
-	},
-	.timestamp_freq = 1,
-	.bittiming_const = &kvaser_usb_leaf_bittiming_const,
-};
-- 
GitLab


From 819251da717832593827502ebaad757b166d881a Mon Sep 17 00:00:00 2001
From: Jimmy Assarsson <extja@kvaser.com>
Date: Wed, 8 Dec 2021 16:21:21 +0100
Subject: [PATCH 2111/4878] can: kvaser_pciefd: kvaser_pciefd_rx_error_frame():
 increase correct stats->{rx,tx}_errors counter

commit 36aea60fc892ce73f96d45dc7eb239c7c4c1fa69 upstream.

Check the direction bit in the error frame packet (EPACK) to determine
which net_device_stats {rx,tx}_errors counter to increase.

Fixes: 26ad340e582d ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices")
Link: https://lore.kernel.org/all/20211208152122.250852-1-extja@kvaser.com
Cc: stable@vger.kernel.org
Signed-off-by: Jimmy Assarsson <extja@kvaser.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/kvaser_pciefd.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index 99323c273aa56..9d7445f6ef143 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -248,6 +248,9 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices");
 #define KVASER_PCIEFD_SPACK_EWLR BIT(23)
 #define KVASER_PCIEFD_SPACK_EPLR BIT(24)
 
+/* Kvaser KCAN_EPACK second word */
+#define KVASER_PCIEFD_EPACK_DIR_TX BIT(0)
+
 struct kvaser_pciefd;
 
 struct kvaser_pciefd_can {
@@ -1285,7 +1288,10 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can,
 
 	can->err_rep_cnt++;
 	can->can.can_stats.bus_error++;
-	stats->rx_errors++;
+	if (p->header[1] & KVASER_PCIEFD_EPACK_DIR_TX)
+		stats->tx_errors++;
+	else
+		stats->rx_errors++;
 
 	can->bec.txerr = bec.txerr;
 	can->bec.rxerr = bec.rxerr;
-- 
GitLab


From 923f4dc5df679f678e121c20bf2fd70f7bf3e288 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 24 Nov 2021 17:50:41 +0300
Subject: [PATCH 2112/4878] can: sja1000: fix use after free in
 ems_pcmcia_add_card()

commit 3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45 upstream.

If the last channel is not available then "dev" is freed.  Fortunately,
we can just use "pdev->irq" instead.

Also we should check if at least one channel was set up.

Fixes: fd734c6f25ae ("can/sja1000: add driver for EMS PCMCIA card")
Link: https://lore.kernel.org/all/20211124145041.GB13656@kili
Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/sja1000/ems_pcmcia.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/sja1000/ems_pcmcia.c b/drivers/net/can/sja1000/ems_pcmcia.c
index 770304eaef950..80b30768d9c6c 100644
--- a/drivers/net/can/sja1000/ems_pcmcia.c
+++ b/drivers/net/can/sja1000/ems_pcmcia.c
@@ -235,7 +235,12 @@ static int ems_pcmcia_add_card(struct pcmcia_device *pdev, unsigned long base)
 			free_sja1000dev(dev);
 	}
 
-	err = request_irq(dev->irq, &ems_pcmcia_interrupt, IRQF_SHARED,
+	if (!card->channels) {
+		err = -ENODEV;
+		goto failure_cleanup;
+	}
+
+	err = request_irq(pdev->irq, &ems_pcmcia_interrupt, IRQF_SHARED,
 			  DRV_NAME, card);
 	if (!err)
 		return 0;
-- 
GitLab


From dded8d76a7dc5c28950ec468fb6c34f5263ead57 Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Wed, 20 Oct 2021 13:02:11 -0500
Subject: [PATCH 2113/4878] x86/sme: Explicitly map new EFI memmap table as
 encrypted

commit 1ff2fc02862d52e18fd3daabcfe840ec27e920a8 upstream.

Reserving memory using efi_mem_reserve() calls into the x86
efi_arch_mem_reserve() function. This function will insert a new EFI
memory descriptor into the EFI memory map representing the area of
memory to be reserved and marking it as EFI runtime memory. As part
of adding this new entry, a new EFI memory map is allocated and mapped.
The mapping is where a problem can occur. This new memory map is mapped
using early_memremap() and generally mapped encrypted, unless the new
memory for the mapping happens to come from an area of memory that is
marked as EFI_BOOT_SERVICES_DATA memory. In this case, the new memory will
be mapped unencrypted. However, during replacement of the old memory map,
efi_mem_type() is disabled, so the new memory map will now be long-term
mapped encrypted (in efi.memmap), resulting in the map containing invalid
data and causing the kernel boot to crash.

Since it is known that the area will be mapped encrypted going forward,
explicitly map the new memory map as encrypted using early_memremap_prot().

Cc: <stable@vger.kernel.org> # 4.14.x
Fixes: 8f716c9b5feb ("x86/mm: Add support to access boot related data in the clear")
Link: https://lore.kernel.org/all/ebf1eb2940405438a09d51d121ec0d02c8755558.1634752931.git.thomas.lendacky@amd.com/
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
[ardb: incorporate Kconfig fix by Arnd]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/Kconfig               | 1 +
 arch/x86/platform/efi/quirks.c | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index a853ed7240eef..fb873a7bb65c8 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1939,6 +1939,7 @@ config EFI
 	depends on ACPI
 	select UCS2_STRING
 	select EFI_RUNTIME_WRAPPERS
+	select ARCH_USE_MEMREMAP_PROT
 	help
 	  This enables the kernel to use EFI runtime services that are
 	  available (such as the EFI variable services).
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 5a40fe411ebda..c1eec019dcee6 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -277,7 +277,8 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
 		return;
 	}
 
-	new = early_memremap(data.phys_map, data.size);
+	new = early_memremap_prot(data.phys_map, data.size,
+				  pgprot_val(pgprot_encrypted(FIXMAP_PAGE_NORMAL)));
 	if (!new) {
 		pr_err("Failed to map new boot services memmap\n");
 		return;
-- 
GitLab


From 46dcf66d6e7a64febe0575c62679287679dcb2b3 Mon Sep 17 00:00:00 2001
From: Lang Yu <Lang.Yu@amd.com>
Date: Thu, 28 Jan 2021 10:27:03 +0800
Subject: [PATCH 2114/4878] drm/amd/amdkfd: adjust dummy functions' placement

commit cd63989e0e6aa2eb66b461f2bae769e2550e47ac upstream.

Move all the dummy functions in amdgpu_amdkfd.c to
amdgpu_amdkfd.h as inline functions.

Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Suggested-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c |  87 -------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 138 ++++++++++++++++++---
 2 files changed, 119 insertions(+), 106 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 0544460653b95..b23b31dc570e6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -47,12 +47,8 @@ int amdgpu_amdkfd_init(void)
 	amdgpu_amdkfd_total_mem_size = si.totalram - si.totalhigh;
 	amdgpu_amdkfd_total_mem_size *= si.mem_unit;
 
-#ifdef CONFIG_HSA_AMD
 	ret = kgd2kfd_init();
 	amdgpu_amdkfd_gpuvm_init_mem_limits();
-#else
-	ret = -ENOENT;
-#endif
 	kfd_initialized = !ret;
 
 	return ret;
@@ -695,86 +691,3 @@ bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd)
 
 	return adev->have_atomics_support;
 }
-
-#ifndef CONFIG_HSA_AMD
-bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm)
-{
-	return false;
-}
-
-void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo)
-{
-}
-
-int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo)
-{
-	return 0;
-}
-
-void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
-					struct amdgpu_vm *vm)
-{
-}
-
-struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f)
-{
-	return NULL;
-}
-
-int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm)
-{
-	return 0;
-}
-
-struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev,
-			      unsigned int asic_type, bool vf)
-{
-	return NULL;
-}
-
-bool kgd2kfd_device_init(struct kfd_dev *kfd,
-			 struct drm_device *ddev,
-			 const struct kgd2kfd_shared_resources *gpu_resources)
-{
-	return false;
-}
-
-void kgd2kfd_device_exit(struct kfd_dev *kfd)
-{
-}
-
-void kgd2kfd_exit(void)
-{
-}
-
-void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
-{
-}
-
-int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
-{
-	return 0;
-}
-
-int kgd2kfd_pre_reset(struct kfd_dev *kfd)
-{
-	return 0;
-}
-
-int kgd2kfd_post_reset(struct kfd_dev *kfd)
-{
-	return 0;
-}
-
-void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry)
-{
-}
-
-void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd)
-{
-}
-
-void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint32_t throttle_bitmask)
-{
-}
-#endif
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index ea391ca7f2f1c..a81d9cacf9b8f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -94,11 +94,6 @@ enum kgd_engine_type {
 	KGD_ENGINE_MAX
 };
 
-struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
-						       struct mm_struct *mm);
-bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
-struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);
-int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo);
 
 struct amdkfd_process_info {
 	/* List head of all VMs that belong to a KFD process */
@@ -132,8 +127,6 @@ void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
 void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev);
 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev);
 void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev);
-
-int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm);
 int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
 				uint32_t vmid, uint64_t gpu_addr,
 				uint32_t *ib_cmd, uint32_t ib_len);
@@ -153,6 +146,38 @@ void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd);
 int amdgpu_queue_mask_bit_to_set_resource_bit(struct amdgpu_device *adev,
 					int queue_bit);
 
+struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
+								struct mm_struct *mm);
+#if IS_ENABLED(CONFIG_HSA_AMD)
+bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
+struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);
+int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo);
+int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm);
+#else
+static inline
+bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm)
+{
+	return false;
+}
+
+static inline
+struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f)
+{
+	return NULL;
+}
+
+static inline
+int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo)
+{
+	return 0;
+}
+
+static inline
+int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm)
+{
+	return 0;
+}
+#endif
 /* Shared API */
 int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
 				void **mem_obj, uint64_t *gpu_addr,
@@ -215,8 +240,6 @@ int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd,
 					struct file *filp, u32 pasid,
 					void **vm, void **process_info,
 					struct dma_fence **ef);
-void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
-				struct amdgpu_vm *vm);
 void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm);
 void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm);
 uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm);
@@ -236,23 +259,43 @@ int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_dev *kgd,
 		struct kgd_mem *mem, void **kptr, uint64_t *size);
 int amdgpu_amdkfd_gpuvm_restore_process_bos(void *process_info,
 					    struct dma_fence **ef);
-
 int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd,
 					      struct kfd_vm_fault_info *info);
-
 int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd,
 				      struct dma_buf *dmabuf,
 				      uint64_t va, void *vm,
 				      struct kgd_mem **mem, uint64_t *size,
 				      uint64_t *mmap_offset);
-
-void amdgpu_amdkfd_gpuvm_init_mem_limits(void);
-void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo);
-
 int amdgpu_amdkfd_get_tile_config(struct kgd_dev *kgd,
 				struct tile_config *config);
+#if IS_ENABLED(CONFIG_HSA_AMD)
+void amdgpu_amdkfd_gpuvm_init_mem_limits(void);
+void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
+				struct amdgpu_vm *vm);
+void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo);
+#else
+static inline
+void amdgpu_amdkfd_gpuvm_init_mem_limits(void)
+{
+}
 
+static inline
+void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
+					struct amdgpu_vm *vm)
+{
+}
+
+static inline
+void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo)
+{
+}
+#endif
 /* KGD2KFD callbacks */
+int kgd2kfd_quiesce_mm(struct mm_struct *mm);
+int kgd2kfd_resume_mm(struct mm_struct *mm);
+int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
+						struct dma_fence *fence);
+#if IS_ENABLED(CONFIG_HSA_AMD)
 int kgd2kfd_init(void);
 void kgd2kfd_exit(void);
 struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev,
@@ -266,11 +309,68 @@ int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm);
 int kgd2kfd_pre_reset(struct kfd_dev *kfd);
 int kgd2kfd_post_reset(struct kfd_dev *kfd);
 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry);
-int kgd2kfd_quiesce_mm(struct mm_struct *mm);
-int kgd2kfd_resume_mm(struct mm_struct *mm);
-int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
-					       struct dma_fence *fence);
 void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd);
 void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint32_t throttle_bitmask);
+#else
+static inline int kgd2kfd_init(void)
+{
+	return -ENOENT;
+}
 
+static inline void kgd2kfd_exit(void)
+{
+}
+
+static inline
+struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev,
+					unsigned int asic_type, bool vf)
+{
+	return NULL;
+}
+
+static inline
+bool kgd2kfd_device_init(struct kfd_dev *kfd, struct drm_device *ddev,
+				const struct kgd2kfd_shared_resources *gpu_resources)
+{
+	return false;
+}
+
+static inline void kgd2kfd_device_exit(struct kfd_dev *kfd)
+{
+}
+
+static inline void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
+{
+}
+
+static inline int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
+{
+	return 0;
+}
+
+static inline int kgd2kfd_pre_reset(struct kfd_dev *kfd)
+{
+	return 0;
+}
+
+static inline int kgd2kfd_post_reset(struct kfd_dev *kfd)
+{
+	return 0;
+}
+
+static inline
+void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry)
+{
+}
+
+static inline
+void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd)
+{
+}
+
+static inline
+void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint32_t throttle_bitmask)
+{
+}
+#endif
 #endif /* AMDGPU_AMDKFD_H_INCLUDED */
-- 
GitLab


From 5d191b0976b72af5f79cf217b9b7c2f20b522a2a Mon Sep 17 00:00:00 2001
From: James Zhu <James.Zhu@amd.com>
Date: Tue, 7 Sep 2021 11:13:02 -0400
Subject: [PATCH 2115/4878] drm/amdkfd: separate kfd_iommu_resume from
 kfd_resume

commit fefc01f042f44ede373ee66773b8238dd8fdcb55 upstream.

Separate kfd_iommu_resume from kfd_resume for fine-tuning
of amdgpu device init/resume/reset/recovery sequence.

v2: squash in fix for !CONFIG_HSA_AMD

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211277
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h |  6 ++++++
 drivers/gpu/drm/amd/amdkfd/kfd_device.c    | 12 ++++++++----
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index a81d9cacf9b8f..8a402a3df4121 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -305,6 +305,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 			 const struct kgd2kfd_shared_resources *gpu_resources);
 void kgd2kfd_device_exit(struct kfd_dev *kfd);
 void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm);
+int kgd2kfd_resume_iommu(struct kfd_dev *kfd);
 int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm);
 int kgd2kfd_pre_reset(struct kfd_dev *kfd);
 int kgd2kfd_post_reset(struct kfd_dev *kfd);
@@ -343,6 +344,11 @@ static inline void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
 {
 }
 
+static int __maybe_unused kgd2kfd_resume_iommu(struct kfd_dev *kfd)
+{
+	return 0;
+}
+
 static inline int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
 {
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 5751bddc9cadd..1204dae85797e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -896,17 +896,21 @@ int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
 	return ret;
 }
 
-static int kfd_resume(struct kfd_dev *kfd)
+int kgd2kfd_resume_iommu(struct kfd_dev *kfd)
 {
 	int err = 0;
 
 	err = kfd_iommu_resume(kfd);
-	if (err) {
+	if (err)
 		dev_err(kfd_device,
 			"Failed to resume IOMMU for device %x:%x\n",
 			kfd->pdev->vendor, kfd->pdev->device);
-		return err;
-	}
+	return err;
+}
+
+static int kfd_resume(struct kfd_dev *kfd)
+{
+	int err = 0;
 
 	err = kfd->dqm->ops.start(kfd->dqm);
 	if (err) {
-- 
GitLab


From fe9dca7dda61f8f3b3000df2abe88c60d1bfab93 Mon Sep 17 00:00:00 2001
From: James Zhu <James.Zhu@amd.com>
Date: Tue, 7 Sep 2021 11:27:31 -0400
Subject: [PATCH 2116/4878] drm/amdgpu: add amdgpu_amdkfd_resume_iommu

commit 8066008482e533e91934bee49765bf8b4a7c40db upstream.

Add amdgpu_amdkfd_resume_iommu for amdgpu.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211277
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 10 ++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index b23b31dc570e6..fb6230c62daad 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -190,6 +190,16 @@ void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
 		kgd2kfd_suspend(adev->kfd.dev, run_pm);
 }
 
+int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev)
+{
+	int r = 0;
+
+	if (adev->kfd.dev)
+		r = kgd2kfd_resume_iommu(adev->kfd.dev);
+
+	return r;
+}
+
 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
 {
 	int r = 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index 8a402a3df4121..32e385f287cb6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -121,6 +121,7 @@ int amdgpu_amdkfd_init(void);
 void amdgpu_amdkfd_fini(void);
 
 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm);
+int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev);
 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm);
 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
 			const void *ih_ring_entry);
-- 
GitLab


From ac9db04ee32f007e48cb0763784ccfadd5a21342 Mon Sep 17 00:00:00 2001
From: James Zhu <James.Zhu@amd.com>
Date: Tue, 7 Sep 2021 11:32:22 -0400
Subject: [PATCH 2117/4878] drm/amdgpu: move iommu_resume before ip init/resume

commit f02abeb0779700c308e661a412451b38962b8a0b upstream.

Separate iommu_resume from kfd_resume, and move it before
other amdgpu ip init/resume.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211277
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 97723f2b5ece7..2947bded074a2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2220,6 +2220,10 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 	if (r)
 		goto init_failed;
 
+	r = amdgpu_amdkfd_resume_iommu(adev);
+	if (r)
+		goto init_failed;
+
 	r = amdgpu_device_ip_hw_init_phase1(adev);
 	if (r)
 		goto init_failed;
@@ -2913,6 +2917,10 @@ static int amdgpu_device_ip_resume(struct amdgpu_device *adev)
 {
 	int r;
 
+	r = amdgpu_amdkfd_resume_iommu(adev);
+	if (r)
+		return r;
+
 	r = amdgpu_device_ip_resume_phase1(adev);
 	if (r)
 		return r;
@@ -4296,6 +4304,10 @@ static int amdgpu_do_asic_reset(struct amdgpu_hive_info *hive,
 
 			if (!r) {
 				dev_info(tmp_adev->dev, "GPU reset succeeded, trying to resume\n");
+				r = amdgpu_amdkfd_resume_iommu(tmp_adev);
+				if (r)
+					goto out;
+
 				r = amdgpu_device_ip_resume_phase1(tmp_adev);
 				if (r)
 					goto out;
-- 
GitLab


From 7508a9aa65b959bbc6d9e42c9683520bddb7db0d Mon Sep 17 00:00:00 2001
From: Yifan Zhang <yifan1.zhang@amd.com>
Date: Tue, 28 Sep 2021 15:42:35 +0800
Subject: [PATCH 2118/4878] drm/amdgpu: init iommu after amdkfd device init

commit 714d9e4574d54596973ee3b0624ee4a16264d700 upstream.

This patch is to fix clinfo failure in Raven/Picasso:

Number of platforms: 1
  Platform Profile: FULL_PROFILE
  Platform Version: OpenCL 2.2 AMD-APP (3364.0)
  Platform Name: AMD Accelerated Parallel Processing
  Platform Vendor: Advanced Micro Devices, Inc.
  Platform Extensions: cl_khr_icd cl_amd_event_callback

  Platform Name: AMD Accelerated Parallel Processing Number of devices: 0

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2947bded074a2..488e574f5da1f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2220,10 +2220,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 	if (r)
 		goto init_failed;
 
-	r = amdgpu_amdkfd_resume_iommu(adev);
-	if (r)
-		goto init_failed;
-
 	r = amdgpu_device_ip_hw_init_phase1(adev);
 	if (r)
 		goto init_failed;
@@ -2259,6 +2255,10 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 		amdgpu_xgmi_add_device(adev);
 	amdgpu_amdkfd_device_init(adev);
 
+	r = amdgpu_amdkfd_resume_iommu(adev);
+	if (r)
+		goto init_failed;
+
 	amdgpu_fru_get_product_info(adev);
 
 init_failed:
-- 
GitLab


From f3d9114ac99f4358809f44b390b304b8b53fb4a4 Mon Sep 17 00:00:00 2001
From: Yifan Zhang <yifan1.zhang@amd.com>
Date: Mon, 11 Oct 2021 20:37:01 +0800
Subject: [PATCH 2119/4878] drm/amdkfd: fix boot failure when iommu is disabled
 in Picasso.

commit afd18180c07026f94a80ff024acef5f4159084a4 upstream.

When IOMMU disabled in sbios and kfd in iommuv2 path, iommuv2
init will fail. But this failure should not block amdgpu driver init.

Reported-by: youling <youling257@gmail.com>
Tested-by: youling <youling257@gmail.com>
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ----
 drivers/gpu/drm/amd/amdkfd/kfd_device.c    | 3 +++
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 488e574f5da1f..f262c4e7a48a2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2255,10 +2255,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 		amdgpu_xgmi_add_device(adev);
 	amdgpu_amdkfd_device_init(adev);
 
-	r = amdgpu_amdkfd_resume_iommu(adev);
-	if (r)
-		goto init_failed;
-
 	amdgpu_fru_get_product_info(adev);
 
 init_failed:
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 1204dae85797e..84313135c2eae 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -751,6 +751,9 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 
 	kfd_cwsr_init(kfd);
 
+	if(kgd2kfd_resume_iommu(kfd))
+		goto device_iommu_error;
+
 	if (kfd_resume(kfd))
 		goto kfd_resume_error;
 
-- 
GitLab


From 83ea620a1be840bf05089a5061fb8323ca42f38c Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Thu, 9 Dec 2021 09:13:07 +0100
Subject: [PATCH 2120/4878] nfc: fix potential NULL pointer deref in
 nfc_genl_dump_ses_done

commit 4cd8371a234d051f9c9557fcbb1f8c523b1c0d10 upstream.

The done() netlink callback nfc_genl_dump_ses_done() should check if
received argument is non-NULL, because its allocation could fail earlier
in dumpit() (nfc_genl_dump_ses()).

Fixes: ac22ac466a65 ("NFC: Add a GET_SE netlink API")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211209081307.57337-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/netlink.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index bec7847f8eaac..0767404636c14 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1392,8 +1392,10 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb)
 {
 	struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0];
 
-	nfc_device_iter_exit(iter);
-	kfree(iter);
+	if (iter) {
+		nfc_device_iter_exit(iter);
+		kfree(iter);
+	}
 
 	return 0;
 }
-- 
GitLab


From d5cf399a6dc3b35b91fbd2cb002581e2c1970143 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 18 Oct 2021 14:38:13 +0200
Subject: [PATCH 2121/4878] selftests: netfilter: add a vrf+conntrack testcase

commit 33b8aad21ac175eba9577a73eb62b0aa141c241c upstream.

Rework the reproducer for the vrf+conntrack regression reported
by Eugene into a selftest and also add a test for ip masquerading
that Lahav fixed recently.

With net or net-next tree, the first test fails and the latter
two pass.

With 09e856d54bda5f28 ("vrf: Reset skb conntrack connection on VRF rcv")
reverted first test passes but the last two fail.

A proper fix needs more work, for time being a revert seems to be
the best choice, snat/masquerade did not work before the fix.

Link: https://lore.kernel.org/netdev/378ca299-4474-7e9a-3d36-2350c8c98995@gmail.com/T/#m95358a31810df7392f541f99d187227bc75c9963
Reported-by: Eugene Crosser <crosser@average.org>
Cc: Lahav Schlesinger <lschlesinger@drivenets.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/netfilter/Makefile    |   3 +-
 .../selftests/netfilter/conntrack_vrf.sh      | 219 ++++++++++++++++++
 2 files changed, 221 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/netfilter/conntrack_vrf.sh

diff --git a/tools/testing/selftests/netfilter/Makefile b/tools/testing/selftests/netfilter/Makefile
index a374e10ef5065..a56cfc4f2f3fa 100644
--- a/tools/testing/selftests/netfilter/Makefile
+++ b/tools/testing/selftests/netfilter/Makefile
@@ -4,7 +4,8 @@
 TEST_PROGS := nft_trans_stress.sh nft_nat.sh bridge_brouter.sh \
 	conntrack_icmp_related.sh nft_flowtable.sh ipvs.sh \
 	nft_concat_range.sh nft_conntrack_helper.sh \
-	nft_queue.sh nft_meta.sh
+	nft_queue.sh nft_meta.sh \
+	conntrack_vrf.sh
 
 LDLIBS = -lmnl
 TEST_GEN_FILES =  nf-queue
diff --git a/tools/testing/selftests/netfilter/conntrack_vrf.sh b/tools/testing/selftests/netfilter/conntrack_vrf.sh
new file mode 100644
index 0000000000000..91f3ef0f1192c
--- /dev/null
+++ b/tools/testing/selftests/netfilter/conntrack_vrf.sh
@@ -0,0 +1,219 @@
+#!/bin/sh
+
+# This script demonstrates interaction of conntrack and vrf.
+# The vrf driver calls the netfilter hooks again, with oif/iif
+# pointing at the VRF device.
+#
+# For ingress, this means first iteration has iifname of lower/real
+# device.  In this script, thats veth0.
+# Second iteration is iifname set to vrf device, tvrf in this script.
+#
+# For egress, this is reversed: first iteration has the vrf device,
+# second iteration is done with the lower/real/veth0 device.
+#
+# test_ct_zone_in demonstrates unexpected change of nftables
+# behavior # caused by commit 09e856d54bda5f28 "vrf: Reset skb conntrack
+# connection on VRF rcv"
+#
+# It was possible to assign conntrack zone to a packet (or mark it for
+# `notracking`) in the prerouting chain before conntrack, based on real iif.
+#
+# After the change, the zone assignment is lost and the zone is assigned based
+# on the VRF master interface (in case such a rule exists).
+# assignment is lost. Instead, assignment based on the `iif` matching
+# Thus it is impossible to distinguish packets based on the original
+# interface.
+#
+# test_masquerade_vrf and test_masquerade_veth0 demonstrate the problem
+# that was supposed to be fixed by the commit mentioned above to make sure
+# that any fix to test case 1 won't break masquerade again.
+
+ksft_skip=4
+
+IP0=172.30.30.1
+IP1=172.30.30.2
+PFXL=30
+ret=0
+
+sfx=$(mktemp -u "XXXXXXXX")
+ns0="ns0-$sfx"
+ns1="ns1-$sfx"
+
+cleanup()
+{
+	ip netns pids $ns0 | xargs kill 2>/dev/null
+	ip netns pids $ns1 | xargs kill 2>/dev/null
+
+	ip netns del $ns0 $ns1
+}
+
+nft --version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without nft tool"
+	exit $ksft_skip
+fi
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+ip netns add "$ns0"
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not create net namespace $ns0"
+	exit $ksft_skip
+fi
+ip netns add "$ns1"
+
+trap cleanup EXIT
+
+ip netns exec $ns0 sysctl -q -w net.ipv4.conf.default.rp_filter=0
+ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0
+ip netns exec $ns0 sysctl -q -w net.ipv4.conf.all.rp_filter=0
+
+ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not add veth device"
+	exit $ksft_skip
+fi
+
+ip -net $ns0 li add tvrf type vrf table 9876
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not add vrf device"
+	exit $ksft_skip
+fi
+
+ip -net $ns0 li set lo up
+
+ip -net $ns0 li set veth0 master tvrf
+ip -net $ns0 li set tvrf up
+ip -net $ns0 li set veth0 up
+ip -net $ns1 li set veth0 up
+
+ip -net $ns0 addr add $IP0/$PFXL dev veth0
+ip -net $ns1 addr add $IP1/$PFXL dev veth0
+
+ip netns exec $ns1 iperf3 -s > /dev/null 2>&1&
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not start iperf3"
+	exit $ksft_skip
+fi
+
+# test vrf ingress handling.
+# The incoming connection should be placed in conntrack zone 1,
+# as decided by the first iteration of the ruleset.
+test_ct_zone_in()
+{
+ip netns exec $ns0 nft -f - <<EOF
+table testct {
+	chain rawpre {
+		type filter hook prerouting priority raw;
+
+		iif { veth0, tvrf } counter meta nftrace set 1
+		iif veth0 counter ct zone set 1 counter return
+		iif tvrf counter ct zone set 2 counter return
+		ip protocol icmp counter
+		notrack counter
+	}
+
+	chain rawout {
+		type filter hook output priority raw;
+
+		oif veth0 counter ct zone set 1 counter return
+		oif tvrf counter ct zone set 2 counter return
+		notrack counter
+	}
+}
+EOF
+	ip netns exec $ns1 ping -W 1 -c 1 -I veth0 $IP0 > /dev/null
+
+	# should be in zone 1, not zone 2
+	count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 1 2>/dev/null | wc -l)
+	if [ $count -eq 1 ]; then
+		echo "PASS: entry found in conntrack zone 1"
+	else
+		echo "FAIL: entry not found in conntrack zone 1"
+		count=$(ip netns exec $ns0 conntrack -L -s $IP1 -d $IP0 -p icmp --zone 2 2> /dev/null | wc -l)
+		if [ $count -eq 1 ]; then
+			echo "FAIL: entry found in zone 2 instead"
+		else
+			echo "FAIL: entry not in zone 1 or 2, dumping table"
+			ip netns exec $ns0 conntrack -L
+			ip netns exec $ns0 nft list ruleset
+		fi
+	fi
+}
+
+# add masq rule that gets evaluated w. outif set to vrf device.
+# This tests the first iteration of the packet through conntrack,
+# oifname is the vrf device.
+test_masquerade_vrf()
+{
+	ip netns exec $ns0 conntrack -F 2>/dev/null
+
+ip netns exec $ns0 nft -f - <<EOF
+flush ruleset
+table ip nat {
+	chain postrouting {
+		type nat hook postrouting priority 0;
+		# NB: masquerade should always be combined with 'oif(name) bla',
+		# lack of this is intentional here, we want to exercise double-snat.
+		ip saddr 172.30.30.0/30 counter masquerade random
+	}
+}
+EOF
+	ip netns exec $ns0 ip vrf exec tvrf iperf3 -t 1 -c $IP1 >/dev/null
+	if [ $? -ne 0 ]; then
+		echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on vrf device"
+		ret=1
+		return
+	fi
+
+	# must also check that nat table was evaluated on second (lower device) iteration.
+	ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2'
+	if [ $? -eq 0 ]; then
+		echo "PASS: iperf3 connect with masquerade + sport rewrite on vrf device"
+	else
+		echo "FAIL: vrf masq rule has unexpected counter value"
+		ret=1
+	fi
+}
+
+# add masq rule that gets evaluated w. outif set to veth device.
+# This tests the 2nd iteration of the packet through conntrack,
+# oifname is the lower device (veth0 in this case).
+test_masquerade_veth()
+{
+	ip netns exec $ns0 conntrack -F 2>/dev/null
+ip netns exec $ns0 nft -f - <<EOF
+flush ruleset
+table ip nat {
+	chain postrouting {
+		type nat hook postrouting priority 0;
+		meta oif veth0 ip saddr 172.30.30.0/30 counter masquerade random
+	}
+}
+EOF
+	ip netns exec $ns0 ip vrf exec tvrf iperf3 -t 1 -c $IP1 > /dev/null
+	if [ $? -ne 0 ]; then
+		echo "FAIL: iperf3 connect failure with masquerade + sport rewrite on veth device"
+		ret=1
+		return
+	fi
+
+	# must also check that nat table was evaluated on second (lower device) iteration.
+	ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2'
+	if [ $? -eq 0 ]; then
+		echo "PASS: iperf3 connect with masquerade + sport rewrite on veth device"
+	else
+		echo "FAIL: vrf masq rule has unexpected counter value"
+		ret=1
+	fi
+}
+
+test_ct_zone_in
+test_masquerade_vrf
+test_masquerade_veth
+
+exit $ret
-- 
GitLab


From 74685aaecef07f59d814e4eed877094c50260e9e Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Fri, 26 Nov 2021 15:36:12 +0100
Subject: [PATCH 2122/4878] vrf: don't run conntrack on vrf with !dflt qdisc

commit d43b75fbc23f0ac1ef9c14a5a166d3ccb761a451 upstream.

After the below patch, the conntrack attached to skb is set to "notrack" in
the context of vrf device, for locally generated packets.
But this is true only when the default qdisc is set to the vrf device. When
changing the qdisc, notrack is not set anymore.
In fact, there is a shortcut in the vrf driver, when the default qdisc is
set, see commit dcdd43c41e60 ("net: vrf: performance improvements for
IPv4") for more details.

This patch ensures that the behavior is always the same, whatever the qdisc
is.

To demonstrate the difference, a new test is added in conntrack_vrf.sh.

Fixes: 8c9c296adfae ("vrf: run conntrack only in context of lower/physdev for locally generated packets")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Florian Westphal <fw@strlen.de>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/vrf.c                             |  8 ++---
 .../selftests/netfilter/conntrack_vrf.sh      | 30 ++++++++++++++++---
 2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 570e1d11ddc7a..8ab0b5a8dfeff 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -771,8 +771,6 @@ static struct sk_buff *vrf_ip6_out_direct(struct net_device *vrf_dev,
 
 	skb->dev = vrf_dev;
 
-	vrf_nf_set_untracked(skb);
-
 	err = nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk,
 		      skb, NULL, vrf_dev, vrf_ip6_out_direct_finish);
 
@@ -793,6 +791,8 @@ static struct sk_buff *vrf_ip6_out(struct net_device *vrf_dev,
 	if (rt6_need_strict(&ipv6_hdr(skb)->daddr))
 		return skb;
 
+	vrf_nf_set_untracked(skb);
+
 	if (qdisc_tx_is_default(vrf_dev) ||
 	    IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED)
 		return vrf_ip6_out_direct(vrf_dev, sk, skb);
@@ -1008,8 +1008,6 @@ static struct sk_buff *vrf_ip_out_direct(struct net_device *vrf_dev,
 
 	skb->dev = vrf_dev;
 
-	vrf_nf_set_untracked(skb);
-
 	err = nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, net, sk,
 		      skb, NULL, vrf_dev, vrf_ip_out_direct_finish);
 
@@ -1031,6 +1029,8 @@ static struct sk_buff *vrf_ip_out(struct net_device *vrf_dev,
 	    ipv4_is_lbcast(ip_hdr(skb)->daddr))
 		return skb;
 
+	vrf_nf_set_untracked(skb);
+
 	if (qdisc_tx_is_default(vrf_dev) ||
 	    IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED)
 		return vrf_ip_out_direct(vrf_dev, sk, skb);
diff --git a/tools/testing/selftests/netfilter/conntrack_vrf.sh b/tools/testing/selftests/netfilter/conntrack_vrf.sh
index 91f3ef0f1192c..8b5ea92345882 100644
--- a/tools/testing/selftests/netfilter/conntrack_vrf.sh
+++ b/tools/testing/selftests/netfilter/conntrack_vrf.sh
@@ -150,11 +150,27 @@ EOF
 # oifname is the vrf device.
 test_masquerade_vrf()
 {
+	local qdisc=$1
+
+	if [ "$qdisc" != "default" ]; then
+		tc -net $ns0 qdisc add dev tvrf root $qdisc
+	fi
+
 	ip netns exec $ns0 conntrack -F 2>/dev/null
 
 ip netns exec $ns0 nft -f - <<EOF
 flush ruleset
 table ip nat {
+	chain rawout {
+		type filter hook output priority raw;
+
+		oif tvrf ct state untracked counter
+	}
+	chain postrouting2 {
+		type filter hook postrouting priority mangle;
+
+		oif tvrf ct state untracked counter
+	}
 	chain postrouting {
 		type nat hook postrouting priority 0;
 		# NB: masquerade should always be combined with 'oif(name) bla',
@@ -171,13 +187,18 @@ EOF
 	fi
 
 	# must also check that nat table was evaluated on second (lower device) iteration.
-	ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2'
+	ip netns exec $ns0 nft list table ip nat |grep -q 'counter packets 2' &&
+	ip netns exec $ns0 nft list table ip nat |grep -q 'untracked counter packets [1-9]'
 	if [ $? -eq 0 ]; then
-		echo "PASS: iperf3 connect with masquerade + sport rewrite on vrf device"
+		echo "PASS: iperf3 connect with masquerade + sport rewrite on vrf device ($qdisc qdisc)"
 	else
-		echo "FAIL: vrf masq rule has unexpected counter value"
+		echo "FAIL: vrf rules have unexpected counter value"
 		ret=1
 	fi
+
+	if [ "$qdisc" != "default" ]; then
+		tc -net $ns0 qdisc del dev tvrf root
+	fi
 }
 
 # add masq rule that gets evaluated w. outif set to veth device.
@@ -213,7 +234,8 @@ EOF
 }
 
 test_ct_zone_in
-test_masquerade_vrf
+test_masquerade_vrf "default"
+test_masquerade_vrf "pfifo"
 test_masquerade_veth
 
 exit $ret
-- 
GitLab


From f26951db84a4074a027aba1840370ceb928ba1a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= <bjorn@kernel.org>
Date: Wed, 17 Nov 2021 13:57:08 +0100
Subject: [PATCH 2123/4878] bpf, x86: Fix "no previous prototype" warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f45b2974cc0ae959a4c503a071e38a56bd64372f upstream.

The arch_prepare_bpf_dispatcher function does not have a prototype, and
yields the following warning when W=1 is enabled for the kernel build.

  >> arch/x86/net/bpf_jit_comp.c:2188:5: warning: no previous \
  prototype for 'arch_prepare_bpf_dispatcher' [-Wmissing-prototypes]
        2188 | int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, \
	int num_funcs)
             |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Remove the warning by adding a function declaration to include/linux/bpf.h.

Fixes: 75ccbef6369e ("bpf: Introduce BPF dispatcher")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Björn Töpel <bjorn@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211117125708.769168-1-bjorn@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/bpf.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 474a0d852614f..e6ddf5a3beaf8 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -666,6 +666,7 @@ int bpf_trampoline_unlink_prog(struct bpf_prog *prog, struct bpf_trampoline *tr)
 struct bpf_trampoline *bpf_trampoline_get(u64 key,
 					  struct bpf_attach_target_info *tgt_info);
 void bpf_trampoline_put(struct bpf_trampoline *tr);
+int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, int num_funcs);
 #define BPF_DISPATCHER_INIT(_name) {				\
 	.mutex = __MUTEX_INITIALIZER(_name.mutex),		\
 	.func = &_name##_func,					\
-- 
GitLab


From 349e83c0cf674e3d5820f475aed4fa565519fcbe Mon Sep 17 00:00:00 2001
From: Maxim Mikityanskiy <maximmi@nvidia.com>
Date: Tue, 30 Nov 2021 20:16:07 +0200
Subject: [PATCH 2124/4878] bpf: Fix the off-by-two error in range markings

commit 2fa7d94afc1afbb4d702760c058dc2d7ed30f226 upstream.

The first commit cited below attempts to fix the off-by-one error that
appeared in some comparisons with an open range. Due to this error,
arithmetically equivalent pieces of code could get different verdicts
from the verifier, for example (pseudocode):

  // 1. Passes the verifier:
  if (data + 8 > data_end)
      return early
  read *(u64 *)data, i.e. [data; data+7]

  // 2. Rejected by the verifier (should still pass):
  if (data + 7 >= data_end)
      return early
  read *(u64 *)data, i.e. [data; data+7]

The attempted fix, however, shifts the range by one in a wrong
direction, so the bug not only remains, but also such piece of code
starts failing in the verifier:

  // 3. Rejected by the verifier, but the check is stricter than in #1.
  if (data + 8 >= data_end)
      return early
  read *(u64 *)data, i.e. [data; data+7]

The change performed by that fix converted an off-by-one bug into
off-by-two. The second commit cited below added the BPF selftests
written to ensure than code chunks like #3 are rejected, however,
they should be accepted.

This commit fixes the off-by-two error by adjusting new_range in the
right direction and fixes the tests by changing the range into the
one that should actually fail.

Fixes: fb2a311a31d3 ("bpf: fix off by one for range markings with L{T, E} patterns")
Fixes: b37242c773b2 ("bpf: add test cases to bpf selftests to cover all access tests")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211130181607.593149-1-maximmi@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/verifier.c                         |  2 +-
 .../bpf/verifier/xdp_direct_packet_access.c   | 32 +++++++++----------
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 5a2b28e6816ee..95ab3f243acde 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7240,7 +7240,7 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *vstate,
 
 	new_range = dst_reg->off;
 	if (range_right_open)
-		new_range--;
+		new_range++;
 
 	/* Examples for register markings:
 	 *
diff --git a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
index bfb97383e6b5a..de172a5b8754a 100644
--- a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
+++ b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
@@ -112,10 +112,10 @@
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
 		    offsetof(struct xdp_md, data_end)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
 	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -167,10 +167,10 @@
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
 		    offsetof(struct xdp_md, data_end)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
 	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -274,9 +274,9 @@
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
 		    offsetof(struct xdp_md, data_end)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -437,9 +437,9 @@
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
 		    offsetof(struct xdp_md, data_end)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -544,10 +544,10 @@
 		    offsetof(struct xdp_md, data_meta)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
 	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -599,10 +599,10 @@
 		    offsetof(struct xdp_md, data_meta)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
 	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -706,9 +706,9 @@
 		    offsetof(struct xdp_md, data_meta)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
@@ -869,9 +869,9 @@
 		    offsetof(struct xdp_md, data_meta)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
-	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
 	BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
-	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -6),
 	BPF_MOV64_IMM(BPF_REG_0, 0),
 	BPF_EXIT_INSN(),
 	},
-- 
GitLab


From a59df4ea7155a34e6ed1b590cace91a3e0c19cf0 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Fri, 22 Oct 2021 17:28:17 -0700
Subject: [PATCH 2125/4878] ice: ignore dropped packets during init

commit 28dc1b86f8ea9fd6f4c9e0b363db73ecabf84e22 upstream.

If the hardware is constantly receiving unicast or broadcast packets
during driver load, the device previously counted many GLV_RDPC (VSI
dropped packets) events during init. This causes confusing dropped
packet statistics during driver load. The dropped packets counter
incrementing does stop once the driver finishes loading.

Avoid this problem by baselining our statistics at the end of driver
open instead of the end of probe.

Fixes: cdedef59deb0 ("ice: Configure VSIs for Tx/Rx")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 746a5bd178d3b..4c7d1720113a0 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5267,6 +5267,9 @@ static int ice_up_complete(struct ice_vsi *vsi)
 		netif_carrier_on(vsi->netdev);
 	}
 
+	/* clear this now, and the first stats read will be used as baseline */
+	vsi->stat_offsets_loaded = false;
+
 	ice_service_task_schedule(pf);
 
 	return 0;
-- 
GitLab


From b1830ede16f87009671760f8248b48f5a92431a9 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 2 Dec 2021 18:27:18 -0800
Subject: [PATCH 2126/4878] bonding: make tx_rebalance_counter an atomic

commit dac8e00fb640e9569cdeefd3ce8a75639e5d0711 upstream.

KCSAN reported a data-race [1] around tx_rebalance_counter
which can be accessed from different contexts, without
the protection of a lock/mutex.

[1]
BUG: KCSAN: data-race in bond_alb_init_slave / bond_alb_monitor

write to 0xffff888157e8ca24 of 4 bytes by task 7075 on cpu 0:
 bond_alb_init_slave+0x713/0x860 drivers/net/bonding/bond_alb.c:1613
 bond_enslave+0xd94/0x3010 drivers/net/bonding/bond_main.c:1949
 do_set_master net/core/rtnetlink.c:2521 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3475 [inline]
 rtnl_newlink+0x1298/0x13b0 net/core/rtnetlink.c:3506
 rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5571
 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2491
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5589
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x5fc/0x6c0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x6e1/0x7d0 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmsg+0x195/0x230 net/socket.c:2492
 __do_sys_sendmsg net/socket.c:2501 [inline]
 __se_sys_sendmsg net/socket.c:2499 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2499
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888157e8ca24 of 4 bytes by task 1082 on cpu 1:
 bond_alb_monitor+0x8f/0xc00 drivers/net/bonding/bond_alb.c:1511
 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298
 worker_thread+0x616/0xa70 kernel/workqueue.c:2445
 kthread+0x2c7/0x2e0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

value changed: 0x00000001 -> 0x00000064

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1082 Comm: kworker/u4:3 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bond1 bond_alb_monitor

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/bonding/bond_alb.c | 14 ++++++++------
 include/net/bond_alb.h         |  2 +-
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index c3091e00dd5fb..0436aef9c9ef5 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1531,14 +1531,14 @@ void bond_alb_monitor(struct work_struct *work)
 	struct slave *slave;
 
 	if (!bond_has_slaves(bond)) {
-		bond_info->tx_rebalance_counter = 0;
+		atomic_set(&bond_info->tx_rebalance_counter, 0);
 		bond_info->lp_counter = 0;
 		goto re_arm;
 	}
 
 	rcu_read_lock();
 
-	bond_info->tx_rebalance_counter++;
+	atomic_inc(&bond_info->tx_rebalance_counter);
 	bond_info->lp_counter++;
 
 	/* send learning packets */
@@ -1560,7 +1560,7 @@ void bond_alb_monitor(struct work_struct *work)
 	}
 
 	/* rebalance tx traffic */
-	if (bond_info->tx_rebalance_counter >= BOND_TLB_REBALANCE_TICKS) {
+	if (atomic_read(&bond_info->tx_rebalance_counter) >= BOND_TLB_REBALANCE_TICKS) {
 		bond_for_each_slave_rcu(bond, slave, iter) {
 			tlb_clear_slave(bond, slave, 1);
 			if (slave == rcu_access_pointer(bond->curr_active_slave)) {
@@ -1570,7 +1570,7 @@ void bond_alb_monitor(struct work_struct *work)
 				bond_info->unbalanced_load = 0;
 			}
 		}
-		bond_info->tx_rebalance_counter = 0;
+		atomic_set(&bond_info->tx_rebalance_counter, 0);
 	}
 
 	if (bond_info->rlb_enabled) {
@@ -1640,7 +1640,8 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave)
 	tlb_init_slave(slave);
 
 	/* order a rebalance ASAP */
-	bond->alb_info.tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS;
+	atomic_set(&bond->alb_info.tx_rebalance_counter,
+		   BOND_TLB_REBALANCE_TICKS);
 
 	if (bond->alb_info.rlb_enabled)
 		bond->alb_info.rlb_rebalance = 1;
@@ -1677,7 +1678,8 @@ void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char
 			rlb_clear_slave(bond, slave);
 	} else if (link == BOND_LINK_UP) {
 		/* order a rebalance ASAP */
-		bond_info->tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS;
+		atomic_set(&bond_info->tx_rebalance_counter,
+			   BOND_TLB_REBALANCE_TICKS);
 		if (bond->alb_info.rlb_enabled) {
 			bond->alb_info.rlb_rebalance = 1;
 			/* If the updelay module parameter is smaller than the
diff --git a/include/net/bond_alb.h b/include/net/bond_alb.h
index f6af76c87a6c3..191c36afa1f4a 100644
--- a/include/net/bond_alb.h
+++ b/include/net/bond_alb.h
@@ -126,7 +126,7 @@ struct tlb_slave_info {
 struct alb_bond_info {
 	struct tlb_client_info	*tx_hashtbl; /* Dynamically allocated */
 	u32			unbalanced_load;
-	int			tx_rebalance_counter;
+	atomic_t		tx_rebalance_counter;
 	int			lp_counter;
 	/* -------- rlb parameters -------- */
 	int rlb_enabled;
-- 
GitLab


From 484069b5de9d223cc1c64c6f80389a99cfef51f1 Mon Sep 17 00:00:00 2001
From: Jianglei Nie <niejianglei2021@163.com>
Date: Thu, 9 Dec 2021 14:15:11 +0800
Subject: [PATCH 2127/4878] nfp: Fix memory leak in nfp_cpp_area_cache_add()

commit c56c96303e9289cc34716b1179597b6f470833de upstream.

In line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a
CPP area structure. But in line 807 (#2), when the cache is allocated
failed, this CPP area structure is not freed, which will result in
memory leak.

We can fix it by freeing the CPP area when the cache is allocated
failed (#2).

792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)
793 {
794 	struct nfp_cpp_area_cache *cache;
795 	struct nfp_cpp_area *area;

800	area = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0),
801 				  0, size);
	// #1: allocates and initializes

802 	if (!area)
803 		return -ENOMEM;

805 	cache = kzalloc(sizeof(*cache), GFP_KERNEL);
806 	if (!cache)
807 		return -ENOMEM; // #2: missing free

817	return 0;
818 }

Fixes: 4cb584e0ee7d ("nfp: add CPP access core")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20211209061511.122535-1-niejianglei2021@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
index 94994a939277b..6ef48eb3a77d4 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c
@@ -803,8 +803,10 @@ int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)
 		return -ENOMEM;
 
 	cache = kzalloc(sizeof(*cache), GFP_KERNEL);
-	if (!cache)
+	if (!cache) {
+		nfp_cpp_area_free(area);
 		return -ENOMEM;
+	}
 
 	cache->id = 0;
 	cache->addr = 0;
-- 
GitLab


From 666521b3852d2b2f52d570f9122b1e4b50d96831 Mon Sep 17 00:00:00 2001
From: Andrea Mayer <andrea.mayer@uniroma2.it>
Date: Wed, 8 Dec 2021 20:54:09 +0100
Subject: [PATCH 2128/4878] seg6: fix the iif in the IPv6 socket control block

commit ae68d93354e5bf5191ee673982251864ea24dd5c upstream.

When an IPv4 packet is received, the ip_rcv_core(...) sets the receiving
interface index into the IPv4 socket control block (v5.16-rc4,
net/ipv4/ip_input.c line 510):

    IPCB(skb)->iif = skb->skb_iif;

If that IPv4 packet is meant to be encapsulated in an outer IPv6+SRH
header, the seg6_do_srh_encap(...) performs the required encapsulation.
In this case, the seg6_do_srh_encap function clears the IPv6 socket control
block (v5.16-rc4 net/ipv6/seg6_iptunnel.c line 163):

    memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));

The memset(...) was introduced in commit ef489749aae5 ("ipv6: sr: clear
IP6CB(skb) on SRH ip4ip6 encapsulation") a long time ago (2019-01-29).

Since the IPv6 socket control block and the IPv4 socket control block share
the same memory area (skb->cb), the receiving interface index info is lost
(IP6CB(skb)->iif is set to zero).

As a side effect, that condition triggers a NULL pointer dereference if
commit 0857d6f8c759 ("ipv6: When forwarding count rx stats on the orig
netdev") is applied.

To fix that issue, we set the IP6CB(skb)->iif with the index of the
receiving interface once again.

Fixes: ef489749aae5 ("ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation")
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211208195409.12169-1-andrea.mayer@uniroma2.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/seg6_iptunnel.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index 897fa59c47de7..4d4399c5c5ea9 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -160,6 +160,14 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
 		hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb));
 
 		memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+
+		/* the control block has been erased, so we have to set the
+		 * iif once again.
+		 * We read the receiving interface index directly from the
+		 * skb->skb_iif as it is done in the IPv4 receiving path (i.e.:
+		 * ip_rcv_core(...)).
+		 */
+		IP6CB(skb)->iif = skb->skb_iif;
 	}
 
 	hdr->nexthdr = NEXTHDR_ROUTING;
-- 
GitLab


From 5e39de85b76ec52fc396a036efacea919aa102e7 Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@chinatelecom.cn>
Date: Wed, 8 Dec 2021 18:03:33 +0800
Subject: [PATCH 2129/4878] udp: using datalen to cap max gso segments

commit 158390e45612ef0fde160af0826f1740c36daf21 upstream.

The max number of UDP gso segments is intended to cap to UDP_MAX_SEGMENTS,
this is checked in udp_send_skb():

    if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
        kfree_skb(skb);
        return -EINVAL;
    }

skb->len contains network and transport header len here, we should use
only data len instead.

Fixes: bec1f6f69736 ("udp: generate gso with UDP_SEGMENT")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/900742e5-81fb-30dc-6e0b-375c6cdd7982@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 655f0d8a13d36..86ed2afbee302 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -899,7 +899,7 @@ static int udp_send_skb(struct sk_buff *skb, struct flowi4 *fl4,
 			kfree_skb(skb);
 			return -EINVAL;
 		}
-		if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
+		if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) {
 			kfree_skb(skb);
 			return -EINVAL;
 		}
-- 
GitLab


From 32a329b731a391992a5281949501d8a2cf5f2a6f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 7 Dec 2021 10:03:23 -0800
Subject: [PATCH 2130/4878] netfilter: conntrack: annotate data-races around
 ct->timeout

commit 802a7dc5cf1bef06f7b290ce76d478138408d6b1 upstream.

(struct nf_conn)->timeout can be read/written locklessly,
add READ_ONCE()/WRITE_ONCE() to prevent load/store tearing.

BUG: KCSAN: data-race in __nf_conntrack_alloc / __nf_conntrack_find_get

write to 0xffff888132e78c08 of 4 bytes by task 6029 on cpu 0:
 __nf_conntrack_alloc+0x158/0x280 net/netfilter/nf_conntrack_core.c:1563
 init_conntrack+0x1da/0xb30 net/netfilter/nf_conntrack_core.c:1635
 resolve_normal_ct+0x502/0x610 net/netfilter/nf_conntrack_core.c:1746
 nf_conntrack_in+0x1c5/0x88f net/netfilter/nf_conntrack_core.c:1901
 ipv6_conntrack_local+0x19/0x20 net/netfilter/nf_conntrack_proto.c:414
 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
 nf_hook_slow+0x72/0x170 net/netfilter/core.c:619
 nf_hook include/linux/netfilter.h:262 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip6_xmit+0xa3a/0xa60 net/ipv6/ip6_output.c:324
 inet6_csk_xmit+0x1a2/0x1e0 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x132a/0x1840 net/ipv4/tcp_output.c:1402
 tcp_transmit_skb net/ipv4/tcp_output.c:1420 [inline]
 tcp_write_xmit+0x1450/0x4460 net/ipv4/tcp_output.c:2680
 __tcp_push_pending_frames+0x68/0x1c0 net/ipv4/tcp_output.c:2864
 tcp_push_pending_frames include/net/tcp.h:1897 [inline]
 tcp_data_snd_check+0x62/0x2e0 net/ipv4/tcp_input.c:5452
 tcp_rcv_established+0x880/0x10e0 net/ipv4/tcp_input.c:5947
 tcp_v6_do_rcv+0x36e/0xa50 net/ipv6/tcp_ipv6.c:1521
 sk_backlog_rcv include/net/sock.h:1030 [inline]
 __release_sock+0xf2/0x270 net/core/sock.c:2768
 release_sock+0x40/0x110 net/core/sock.c:3300
 sk_stream_wait_memory+0x435/0x700 net/core/stream.c:145
 tcp_sendmsg_locked+0xb85/0x25a0 net/ipv4/tcp.c:1402
 tcp_sendmsg+0x2c/0x40 net/ipv4/tcp.c:1440
 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:644
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 __sys_sendto+0x21e/0x2c0 net/socket.c:2036
 __do_sys_sendto net/socket.c:2048 [inline]
 __se_sys_sendto net/socket.c:2044 [inline]
 __x64_sys_sendto+0x74/0x90 net/socket.c:2044
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888132e78c08 of 4 bytes by task 17446 on cpu 1:
 nf_ct_is_expired include/net/netfilter/nf_conntrack.h:286 [inline]
 ____nf_conntrack_find net/netfilter/nf_conntrack_core.c:776 [inline]
 __nf_conntrack_find_get+0x1c7/0xac0 net/netfilter/nf_conntrack_core.c:807
 resolve_normal_ct+0x273/0x610 net/netfilter/nf_conntrack_core.c:1734
 nf_conntrack_in+0x1c5/0x88f net/netfilter/nf_conntrack_core.c:1901
 ipv6_conntrack_local+0x19/0x20 net/netfilter/nf_conntrack_proto.c:414
 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
 nf_hook_slow+0x72/0x170 net/netfilter/core.c:619
 nf_hook include/linux/netfilter.h:262 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ip6_xmit+0xa3a/0xa60 net/ipv6/ip6_output.c:324
 inet6_csk_xmit+0x1a2/0x1e0 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x132a/0x1840 net/ipv4/tcp_output.c:1402
 __tcp_send_ack+0x1fd/0x300 net/ipv4/tcp_output.c:3956
 tcp_send_ack+0x23/0x30 net/ipv4/tcp_output.c:3962
 __tcp_ack_snd_check+0x2d8/0x510 net/ipv4/tcp_input.c:5478
 tcp_ack_snd_check net/ipv4/tcp_input.c:5523 [inline]
 tcp_rcv_established+0x8c2/0x10e0 net/ipv4/tcp_input.c:5948
 tcp_v6_do_rcv+0x36e/0xa50 net/ipv6/tcp_ipv6.c:1521
 sk_backlog_rcv include/net/sock.h:1030 [inline]
 __release_sock+0xf2/0x270 net/core/sock.c:2768
 release_sock+0x40/0x110 net/core/sock.c:3300
 tcp_sendpage+0x94/0xb0 net/ipv4/tcp.c:1114
 inet_sendpage+0x7f/0xc0 net/ipv4/af_inet.c:833
 rds_tcp_xmit+0x376/0x5f0 net/rds/tcp_send.c:118
 rds_send_xmit+0xbed/0x1500 net/rds/send.c:367
 rds_send_worker+0x43/0x200 net/rds/threads.c:200
 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298
 worker_thread+0x616/0xa70 kernel/workqueue.c:2445
 kthread+0x2c7/0x2e0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

value changed: 0x00027cc2 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 17446 Comm: kworker/u4:5 Tainted: G        W         5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: krdsd rds_send_worker

Note: I chose an arbitrary commit for the Fixes: tag,
because I do not think we need to backport this fix to very old kernels.

Fixes: e37542ba111f ("netfilter: conntrack: avoid possible false sharing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/netfilter/nf_conntrack.h | 6 +++---
 net/netfilter/nf_conntrack_core.c    | 6 +++---
 net/netfilter/nf_conntrack_netlink.c | 2 +-
 net/netfilter/nf_flow_table_core.c   | 4 ++--
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 439379ca9ffac..5cf23a23f3c44 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -262,14 +262,14 @@ static inline bool nf_is_loopback_packet(const struct sk_buff *skb)
 /* jiffies until ct expires, 0 if already expired */
 static inline unsigned long nf_ct_expires(const struct nf_conn *ct)
 {
-	s32 timeout = ct->timeout - nfct_time_stamp;
+	s32 timeout = READ_ONCE(ct->timeout) - nfct_time_stamp;
 
 	return timeout > 0 ? timeout : 0;
 }
 
 static inline bool nf_ct_is_expired(const struct nf_conn *ct)
 {
-	return (__s32)(ct->timeout - nfct_time_stamp) <= 0;
+	return (__s32)(READ_ONCE(ct->timeout) - nfct_time_stamp) <= 0;
 }
 
 /* use after obtaining a reference count */
@@ -288,7 +288,7 @@ static inline bool nf_ct_should_gc(const struct nf_conn *ct)
 static inline void nf_ct_offload_timeout(struct nf_conn *ct)
 {
 	if (nf_ct_expires(ct) < NF_CT_DAY / 2)
-		ct->timeout = nfct_time_stamp + NF_CT_DAY;
+		WRITE_ONCE(ct->timeout, nfct_time_stamp + NF_CT_DAY);
 }
 
 struct kernel_param;
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 6a66e99459351..f4cf26b606f92 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -660,7 +660,7 @@ bool nf_ct_delete(struct nf_conn *ct, u32 portid, int report)
 
 	tstamp = nf_conn_tstamp_find(ct);
 	if (tstamp) {
-		s32 timeout = ct->timeout - nfct_time_stamp;
+		s32 timeout = READ_ONCE(ct->timeout) - nfct_time_stamp;
 
 		tstamp->stop = ktime_get_real_ns();
 		if (timeout < 0)
@@ -980,7 +980,7 @@ static int nf_ct_resolve_clash_harder(struct sk_buff *skb, u32 repl_idx)
 	}
 
 	/* We want the clashing entry to go away real soon: 1 second timeout. */
-	loser_ct->timeout = nfct_time_stamp + HZ;
+	WRITE_ONCE(loser_ct->timeout, nfct_time_stamp + HZ);
 
 	/* IPS_NAT_CLASH removes the entry automatically on the first
 	 * reply.  Also prevents UDP tracker from moving the entry to
@@ -1487,7 +1487,7 @@ __nf_conntrack_alloc(struct net *net,
 	/* save hash for reusing when confirming */
 	*(unsigned long *)(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode.pprev) = hash;
 	ct->status = 0;
-	ct->timeout = 0;
+	WRITE_ONCE(ct->timeout, 0);
 	write_pnet(&ct->ct_net, net);
 	memset(&ct->__nfct_init_offset, 0,
 	       offsetof(struct nf_conn, proto) -
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 60a1a666e797a..c6bcc28ae3387 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1971,7 +1971,7 @@ static int ctnetlink_change_timeout(struct nf_conn *ct,
 
 	if (timeout > INT_MAX)
 		timeout = INT_MAX;
-	ct->timeout = nfct_time_stamp + (u32)timeout;
+	WRITE_ONCE(ct->timeout, nfct_time_stamp + (u32)timeout);
 
 	if (test_bit(IPS_DYING_BIT, &ct->status))
 		return -ETIME;
diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c
index f4029fc2c8846..d091d51b5e19f 100644
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -151,8 +151,8 @@ static void flow_offload_fixup_ct_timeout(struct nf_conn *ct)
 	else
 		return;
 
-	if (nf_flow_timeout_delta(ct->timeout) > (__s32)timeout)
-		ct->timeout = nfct_time_stamp + timeout;
+	if (nf_flow_timeout_delta(READ_ONCE(ct->timeout)) > (__s32)timeout)
+		WRITE_ONCE(ct->timeout, nfct_time_stamp + timeout);
 }
 
 static void flow_offload_fixup_ct_state(struct nf_conn *ct)
-- 
GitLab


From aada0b3f339207b66cd24faf0cd9ad578c1bb43d Mon Sep 17 00:00:00 2001
From: Mitch Williams <mitch.a.williams@intel.com>
Date: Fri, 4 Jun 2021 09:53:28 -0700
Subject: [PATCH 2131/4878] iavf: restore MSI state on reset

commit 7e4dcc13965c57869684d57a1dc6dd7be589488c upstream.

If the PF experiences an FLR, the VF's MSI and MSI-X configuration will
be conveniently and silently removed in the process. When this happens,
reset recovery will appear to complete normally but no traffic will
pass. The netdev watchdog will helpfully notify everyone of this issue.

To prevent such public embarrassment, restore MSI configuration at every
reset. For normal resets, this will do no harm, but for VF resets
resulting from a PF FLR, this will keep the VF working.

Fixes: 5eae00c57f5e ("i40evf: main driver core")
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 643679cad8657..7aa49d4eaa87c 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2139,6 +2139,7 @@ static void iavf_reset_task(struct work_struct *work)
 	}
 
 	pci_set_master(adapter->pdev);
+	pci_restore_msi_state(adapter->pdev);
 
 	if (i == IAVF_RESET_WAIT_COMPLETE_COUNT) {
 		dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n",
-- 
GitLab


From 2e2edebb5dd62f4d2d3f27bb031aa48445f4dd2e Mon Sep 17 00:00:00 2001
From: Michal Maloszewski <michal.maloszewski@intel.com>
Date: Tue, 26 Oct 2021 12:59:09 +0000
Subject: [PATCH 2132/4878] iavf: Fix reporting when setting descriptor count

commit 1a1aa356ddf3f16539f5962c01c5f702686dfc15 upstream.

iavf_set_ringparams doesn't communicate to the user that

1. The user requested descriptor count is out of range. Instead it
   just quietly sets descriptors to the "clamped" value and calls it
   done. This makes it look an invalid value was successfully set as
   the descriptor count when this isn't actually true.

2. The user provided descriptor count needs to be inflated for alignment
   reasons.

This behavior is confusing. The ice driver has already addressed this
by rejecting invalid values for descriptor count and
messaging for alignment adjustments.
Do the same thing here by adding the error and info messages.

Fixes: fbb7ddfef253 ("i40evf: core ethtool functionality")
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Michal Maloszewski <michal.maloszewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/intel/iavf/iavf_ethtool.c    | 43 ++++++++++++++-----
 1 file changed, 32 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index 90f5ec982d513..4680a2fe6d3cc 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -612,23 +612,44 @@ static int iavf_set_ringparam(struct net_device *netdev,
 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 		return -EINVAL;
 
-	new_tx_count = clamp_t(u32, ring->tx_pending,
-			       IAVF_MIN_TXD,
-			       IAVF_MAX_TXD);
-	new_tx_count = ALIGN(new_tx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE);
+	if (ring->tx_pending > IAVF_MAX_TXD ||
+	    ring->tx_pending < IAVF_MIN_TXD ||
+	    ring->rx_pending > IAVF_MAX_RXD ||
+	    ring->rx_pending < IAVF_MIN_RXD) {
+		netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
+			   ring->tx_pending, ring->rx_pending, IAVF_MIN_TXD,
+			   IAVF_MAX_RXD, IAVF_REQ_DESCRIPTOR_MULTIPLE);
+		return -EINVAL;
+	}
 
-	new_rx_count = clamp_t(u32, ring->rx_pending,
-			       IAVF_MIN_RXD,
-			       IAVF_MAX_RXD);
-	new_rx_count = ALIGN(new_rx_count, IAVF_REQ_DESCRIPTOR_MULTIPLE);
+	new_tx_count = ALIGN(ring->tx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE);
+	if (new_tx_count != ring->tx_pending)
+		netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
+			    new_tx_count);
+
+	new_rx_count = ALIGN(ring->rx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE);
+	if (new_rx_count != ring->rx_pending)
+		netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
+			    new_rx_count);
 
 	/* if nothing to do return success */
 	if ((new_tx_count == adapter->tx_desc_count) &&
-	    (new_rx_count == adapter->rx_desc_count))
+	    (new_rx_count == adapter->rx_desc_count)) {
+		netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
 		return 0;
+	}
 
-	adapter->tx_desc_count = new_tx_count;
-	adapter->rx_desc_count = new_rx_count;
+	if (new_tx_count != adapter->tx_desc_count) {
+		netdev_dbg(netdev, "Changing Tx descriptor count from %d to %d\n",
+			   adapter->tx_desc_count, new_tx_count);
+		adapter->tx_desc_count = new_tx_count;
+	}
+
+	if (new_rx_count != adapter->rx_desc_count) {
+		netdev_dbg(netdev, "Changing Rx descriptor count from %d to %d\n",
+			   adapter->rx_desc_count, new_rx_count);
+		adapter->rx_desc_count = new_rx_count;
+	}
 
 	if (netif_running(netdev)) {
 		adapter->flags |= IAVF_FLAG_RESET_NEEDED;
-- 
GitLab


From 9d683d14f600be12b040ac9ed0136a3db3550ee1 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Mon, 29 Nov 2021 14:19:52 -0500
Subject: [PATCH 2133/4878] IB/hfi1: Correct guard on eager buffer deallocation

commit 9292f8f9a2ac42eb320bced7153aa2e63d8cc13a upstream.

The code tests the dma address which legitimately can be 0.

The code should test the kernel logical address to avoid leaking eager
buffer allocations that happen to map to a dma address of 0.

Fixes: 60368186fd85 ("IB/hfi1: Fix user-space buffers mapping with IOMMU enabled")
Link: https://lore.kernel.org/r/20211129191952.101968.17137.stgit@awfm-01.cornelisnetworks.com
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hfi1/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index e919817390171..fa2cd76747ff4 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -1148,7 +1148,7 @@ void hfi1_free_ctxtdata(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd)
 	rcd->egrbufs.rcvtids = NULL;
 
 	for (e = 0; e < rcd->egrbufs.alloced; e++) {
-		if (rcd->egrbufs.buffers[e].dma)
+		if (rcd->egrbufs.buffers[e].addr)
 			dma_free_coherent(&dd->pcidev->dev,
 					  rcd->egrbufs.buffers[e].len,
 					  rcd->egrbufs.buffers[e].addr,
-- 
GitLab


From 4b7e90672af8e0c78205db006f1b0a20ebd07f5f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 5 Dec 2021 11:28:22 -0800
Subject: [PATCH 2134/4878] devlink: fix netns refcount leak in
 devlink_nl_cmd_reload()

commit 4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186 upstream.

While preparing my patch series adding netns refcount tracking,
I spotted bugs in devlink_nl_cmd_reload()

Some error paths forgot to release a refcount on a netns.

To fix this, we can reduce the scope of get_net()/put_net()
section around the call to devlink_reload().

Fixes: ccdf07219da6 ("devlink: Add reload action option to devlink reload command")
Fixes: dc64cc7c6310 ("devlink: Add devlink reload limit option")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Moshe Shemesh <moshe@mellanox.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20211205192822.1741045-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/devlink.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 96cf4bc1f9585..442b67c044a9f 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -3265,14 +3265,6 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
 		return err;
 	}
 
-	if (info->attrs[DEVLINK_ATTR_NETNS_PID] ||
-	    info->attrs[DEVLINK_ATTR_NETNS_FD] ||
-	    info->attrs[DEVLINK_ATTR_NETNS_ID]) {
-		dest_net = devlink_netns_get(skb, info);
-		if (IS_ERR(dest_net))
-			return PTR_ERR(dest_net);
-	}
-
 	if (info->attrs[DEVLINK_ATTR_RELOAD_ACTION])
 		action = nla_get_u8(info->attrs[DEVLINK_ATTR_RELOAD_ACTION]);
 	else
@@ -3315,6 +3307,14 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
 			return -EINVAL;
 		}
 	}
+	if (info->attrs[DEVLINK_ATTR_NETNS_PID] ||
+	    info->attrs[DEVLINK_ATTR_NETNS_FD] ||
+	    info->attrs[DEVLINK_ATTR_NETNS_ID]) {
+		dest_net = devlink_netns_get(skb, info);
+		if (IS_ERR(dest_net))
+			return PTR_ERR(dest_net);
+	}
+
 	err = devlink_reload(devlink, dest_net, action, limit, &actions_performed, info->extack);
 
 	if (dest_net)
-- 
GitLab


From 2a51edaf5cc563574878b93d7ef3d5955dda7030 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 9 Dec 2021 00:49:37 -0800
Subject: [PATCH 2135/4878] net/sched: fq_pie: prevent dismantle issue

commit 61c2402665f1e10c5742033fce18392e369931d7 upstream.

For some reason, fq_pie_destroy() did not copy
working code from pie_destroy() and other qdiscs,
thus causing elusive bug.

Before calling del_timer_sync(&q->adapt_timer),
we need to ensure timer will not rearm itself.

rcu: INFO: rcu_preempt self-detected stall on CPU
rcu:    0-....: (4416 ticks this GP) idle=60d/1/0x4000000000000000 softirq=10433/10434 fqs=2579
        (t=10501 jiffies g=13085 q=3989)
NMI backtrace for cpu 0
CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:write_comp_data kernel/kcov.c:221 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x1d/0x80 kernel/kcov.c:273
Code: 54 c8 20 48 89 10 c3 66 0f 1f 44 00 00 53 41 89 fb 41 89 f1 bf 03 00 00 00 65 48 8b 0c 25 40 70 02 00 48 89 ce 4c 8b 54 24 08 <e8> 4e f7 ff ff 84 c0 74 51 48 8b 81 88 15 00 00 44 8b 81 84 15 00
RSP: 0018:ffffc90000d27b28 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888064bf1bf0 RCX: ffff888011928000
RDX: ffff888011928000 RSI: ffff888011928000 RDI: 0000000000000003
RBP: ffff888064bf1c28 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff875d8295 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880783dd300 R14: 0000000000000000 R15: 0000000000000000
 pie_calculate_probability+0x405/0x7c0 net/sched/sch_pie.c:418
 fq_pie_timer+0x170/0x2a0 net/sched/sch_fq_pie.c:383
 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
 __run_timers kernel/time/timer.c:1715 [inline]
 run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 run_ksoftirqd kernel/softirq.c:921 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:913
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Fixes: ec97ecf1ebe4 ("net: sched: add Flow Queue PIE packet scheduler")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Cc: Sachin D. Patil <sdp.sachin@gmail.com>
Cc: V. Saicharan <vsaicharan1998@gmail.com>
Cc: Mohit Bhasi <mohitbhasi1998@gmail.com>
Cc: Leslie Monis <lesliemonis@gmail.com>
Cc: Gautam Ramakrishnan <gautamramk@gmail.com>
Link: https://lore.kernel.org/r/20211209084937.3500020-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/sch_fq_pie.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/sch_fq_pie.c b/net/sched/sch_fq_pie.c
index cac684952edc5..c70802785518f 100644
--- a/net/sched/sch_fq_pie.c
+++ b/net/sched/sch_fq_pie.c
@@ -531,6 +531,7 @@ static void fq_pie_destroy(struct Qdisc *sch)
 	struct fq_pie_sched_data *q = qdisc_priv(sch);
 
 	tcf_block_put(q->block);
+	q->p_params.tupdate = 0;
 	del_timer_sync(&q->adapt_timer);
 	kvfree(q->flows);
 }
-- 
GitLab


From 06368922f38f5a7a41a097c048f714e265492193 Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Thu, 9 Dec 2021 11:29:37 +0100
Subject: [PATCH 2136/4878] KVM: x86: Wait for IPIs to be delivered when
 handling Hyper-V TLB flush hypercall

commit 1ebfaa11ebb5b603a3c3f54b2e84fcf1030f5a14 upstream.

Prior to commit 0baedd792713 ("KVM: x86: make Hyper-V PV TLB flush use
tlb_flush_guest()"), kvm_hv_flush_tlb() was using 'KVM_REQ_TLB_FLUSH |
KVM_REQUEST_NO_WAKEUP' when making a request to flush TLBs on other vCPUs
and KVM_REQ_TLB_FLUSH is/was defined as:

 (0 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)

so KVM_REQUEST_WAIT was lost. Hyper-V TLFS, however, requires that
"This call guarantees that by the time control returns back to the
caller, the observable effects of all flushes on the specified virtual
processors have occurred." and without KVM_REQUEST_WAIT there's a small
chance that the vCPU making the TLB flush will resume running before
all IPIs get delivered to other vCPUs and a stale mapping can get read
there.

Fix the issue by adding KVM_REQUEST_WAIT flag to KVM_REQ_TLB_FLUSH_GUEST:
kvm_hv_flush_tlb() is the sole caller which uses it for
kvm_make_all_cpus_request()/kvm_make_vcpus_request_mask() where
KVM_REQUEST_WAIT makes a difference.

Cc: stable@kernel.org
Fixes: 0baedd792713 ("KVM: x86: make Hyper-V PV TLB flush use tlb_flush_guest()")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211209102937.584397-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b1cd8334db11a..e8fb4b0394af2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -85,7 +85,7 @@
 	KVM_ARCH_REQ_FLAGS(25, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
 #define KVM_REQ_TLB_FLUSH_CURRENT	KVM_ARCH_REQ(26)
 #define KVM_REQ_TLB_FLUSH_GUEST \
-	KVM_ARCH_REQ_FLAGS(27, KVM_REQUEST_NO_WAKEUP)
+	KVM_ARCH_REQ_FLAGS(27, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
 #define KVM_REQ_APF_READY		KVM_ARCH_REQ(28)
 #define KVM_REQ_MSR_FILTER_CHANGED	KVM_ARCH_REQ(29)
 
-- 
GitLab


From c581090228e3aeabb5081c1db8b2024ae8478f5b Mon Sep 17 00:00:00 2001
From: Manjong Lee <mj0123.lee@samsung.com>
Date: Fri, 10 Dec 2021 14:47:11 -0800
Subject: [PATCH 2137/4878] mm: bdi: initialize bdi_min_ratio when bdi is
 unregistered

commit 3c376dfafbf7a8ea0dea212d095ddd83e93280bb upstream.

Initialize min_ratio if it is set during bdi unregistration.  This can
prevent problems that may occur a when bdi is removed without resetting
min_ratio.

For example.
1) insert external sdcard
2) set external sdcard's min_ratio 70
3) remove external sdcard without setting min_ratio 0
4) insert external sdcard
5) set external sdcard's min_ratio 70 << error occur(can't set)

Because when an sdcard is removed, the present bdi_min_ratio value will
remain.  Currently, the only way to reset bdi_min_ratio is to reboot.

[akpm@linux-foundation.org: tweak comment and coding style]

Link: https://lkml.kernel.org/r/20211021161942.5983-1-mj0123.lee@samsung.com
Signed-off-by: Manjong Lee <mj0123.lee@samsung.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Changheun Lee <nanich.lee@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <seunghwan.hyun@samsung.com>
Cc: <sookwan7.kim@samsung.com>
Cc: <yt0928.kim@samsung.com>
Cc: <junho89.kim@samsung.com>
Cc: <jisoo2146.oh@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/backing-dev.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 408d5051d05b3..ca770a783a9f9 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -872,6 +872,13 @@ void bdi_unregister(struct backing_dev_info *bdi)
 	wb_shutdown(&bdi->wb);
 	cgwb_bdi_unregister(bdi);
 
+	/*
+	 * If this BDI's min ratio has been set, use bdi_set_min_ratio() to
+	 * update the global bdi_min_ratio.
+	 */
+	if (bdi->min_ratio)
+		bdi_set_min_ratio(bdi, 0);
+
 	if (bdi->dev) {
 		bdi_debug_unregister(bdi);
 		device_unregister(bdi->dev);
-- 
GitLab


From 3063ee5164e4dd3c0b31ac0c1635839edac46370 Mon Sep 17 00:00:00 2001
From: Alan Young <consult.awy@gmail.com>
Date: Thu, 2 Dec 2021 15:06:07 +0000
Subject: [PATCH 2138/4878] ALSA: ctl: Fix copy of updated id with element
 read/write

commit b6409dd6bdc03aa178bbff0d80db2a30d29b63ac upstream.

When control_compat.c:copy_ctl_value_to_user() is used, by
ctl_elem_read_user() & ctl_elem_write_user(), it must also copy back the
snd_ctl_elem_id value that may have been updated (filled in) by the call
to snd_ctl_elem_read/snd_ctl_elem_write().

This matches the functionality provided by snd_ctl_elem_read_user() and
snd_ctl_elem_write_user(), via snd_ctl_build_ioff().

Without this, and without making additional calls to snd_ctl_info()
which are unnecessary when using the non-compat calls, a userspace
application will not know the numid value for the element and
consequently will not be able to use the poll/read interface on the
control file to determine which elements have updates.

Signed-off-by: Alan Young <consult.awy@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211202150607.543389-1-consult.awy@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/control_compat.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c
index 1d708aab9c98e..97467f6a32a13 100644
--- a/sound/core/control_compat.c
+++ b/sound/core/control_compat.c
@@ -264,6 +264,7 @@ static int copy_ctl_value_to_user(void __user *userdata,
 				  struct snd_ctl_elem_value *data,
 				  int type, int count)
 {
+	struct snd_ctl_elem_value32 __user *data32 = userdata;
 	int i, size;
 
 	if (type == SNDRV_CTL_ELEM_TYPE_BOOLEAN ||
@@ -280,6 +281,8 @@ static int copy_ctl_value_to_user(void __user *userdata,
 		if (copy_to_user(valuep, data->value.bytes.data, size))
 			return -EFAULT;
 	}
+	if (copy_to_user(&data32->id, &data->id, sizeof(data32->id)))
+		return -EFAULT;
 	return 0;
 }
 
-- 
GitLab


From 7fe903d35492975e430ce8bd5ad6f88582477074 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Tue, 23 Nov 2021 16:32:44 +0800
Subject: [PATCH 2139/4878] ALSA: hda/realtek - Add headset Mic support for
 Lenovo ALC897 platform

commit d7f32791a9fcf0dae8b073cdea9b79e29098c5f4 upstream.

Lenovo ALC897 platform had headset Mic.
This patch enable supported headset Mic.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/baab2c2536cb4cc18677a862c6f6d840@realtek.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 40 +++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b980fa617229e..60474a7780233 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -10163,6 +10163,27 @@ static void alc671_fixup_hp_headset_mic2(struct hda_codec *codec,
 	}
 }
 
+static void alc897_hp_automute_hook(struct hda_codec *codec,
+					 struct hda_jack_callback *jack)
+{
+	struct alc_spec *spec = codec->spec;
+	int vref;
+
+	snd_hda_gen_hp_automute(codec, jack);
+	vref = spec->gen.hp_jack_present ? (PIN_HP | AC_PINCTL_VREF_100) : PIN_HP;
+	snd_hda_codec_write(codec, 0x1b, 0, AC_VERB_SET_PIN_WIDGET_CONTROL,
+			    vref);
+}
+
+static void alc897_fixup_lenovo_headset_mic(struct hda_codec *codec,
+				     const struct hda_fixup *fix, int action)
+{
+	struct alc_spec *spec = codec->spec;
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		spec->gen.hp_automute_hook = alc897_hp_automute_hook;
+	}
+}
+
 static const struct coef_fw alc668_coefs[] = {
 	WRITE_COEF(0x01, 0xbebe), WRITE_COEF(0x02, 0xaaaa), WRITE_COEF(0x03,    0x0),
 	WRITE_COEF(0x04, 0x0180), WRITE_COEF(0x06,    0x0), WRITE_COEF(0x07, 0x0f80),
@@ -10243,6 +10264,8 @@ enum {
 	ALC668_FIXUP_ASUS_NO_HEADSET_MIC,
 	ALC668_FIXUP_HEADSET_MIC,
 	ALC668_FIXUP_MIC_DET_COEF,
+	ALC897_FIXUP_LENOVO_HEADSET_MIC,
+	ALC897_FIXUP_HEADSET_MIC_PIN,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
@@ -10649,6 +10672,19 @@ static const struct hda_fixup alc662_fixups[] = {
 			{}
 		},
 	},
+	[ALC897_FIXUP_LENOVO_HEADSET_MIC] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc897_fixup_lenovo_headset_mic,
+	},
+	[ALC897_FIXUP_HEADSET_MIC_PIN] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x1a, 0x03a11050 },
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC897_FIXUP_LENOVO_HEADSET_MIC
+	},
 };
 
 static const struct snd_pci_quirk alc662_fixup_tbl[] = {
@@ -10693,6 +10729,10 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD),
 	SND_PCI_QUIRK(0x14cd, 0x5003, "USI", ALC662_FIXUP_USI_HEADSET_MODE),
 	SND_PCI_QUIRK(0x17aa, 0x1036, "Lenovo P520", ALC662_FIXUP_LENOVO_MULTI_CODECS),
+	SND_PCI_QUIRK(0x17aa, 0x32ca, "Lenovo ThinkCentre M80", ALC897_FIXUP_HEADSET_MIC_PIN),
+	SND_PCI_QUIRK(0x17aa, 0x32cb, "Lenovo ThinkCentre M70", ALC897_FIXUP_HEADSET_MIC_PIN),
+	SND_PCI_QUIRK(0x17aa, 0x32cf, "Lenovo ThinkCentre M950", ALC897_FIXUP_HEADSET_MIC_PIN),
+	SND_PCI_QUIRK(0x17aa, 0x32f7, "Lenovo ThinkCentre M90", ALC897_FIXUP_HEADSET_MIC_PIN),
 	SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo Ideapad Y550P", ALC662_FIXUP_IDEAPAD),
 	SND_PCI_QUIRK(0x17aa, 0x3a0d, "Lenovo Ideapad Y550", ALC662_FIXUP_IDEAPAD),
 	SND_PCI_QUIRK(0x1849, 0x5892, "ASRock B150M", ALC892_FIXUP_ASROCK_MOBO),
-- 
GitLab


From 6760e6ddeb48bc0086e1b7b3b213b9bd87cd811d Mon Sep 17 00:00:00 2001
From: Werner Sembach <wse@tuxedocomputers.com>
Date: Thu, 2 Dec 2021 17:50:10 +0100
Subject: [PATCH 2140/4878] ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1

commit 619764cc2ec9ce1283a8bbcd89a1376a7c68293b upstream.

This fixes the SND_PCI_QUIRK(...) of the TongFang PHxTxX1 barebone. This
fixes the issue of sound not working after s3 suspend.

When waking up from s3 suspend the Coef 0x10 is set to 0x0220 instead of
0x0020. Setting the value manually makes the sound work again. This patch
does this automatically.

While being on it, I also fixed the comment formatting of the quirk and
shortened variable and function names.

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Fixes: dd6dd6e3c791 ("ALSA: hda/realtek: Add quirk for TongFang PHxTxX1")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211202165010.876431-1-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 40 +++++++++++++++++++----------------
 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 60474a7780233..bed2a93001635 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6449,22 +6449,26 @@ static void alc287_fixup_legion_15imhg05_speakers(struct hda_codec *codec,
 /* for alc285_fixup_ideapad_s740_coef() */
 #include "ideapad_s740_helper.c"
 
-static void alc256_fixup_tongfang_reset_persistent_settings(struct hda_codec *codec,
-							    const struct hda_fixup *fix,
-							    int action)
+static const struct coef_fw alc256_fixup_set_coef_defaults_coefs[] = {
+	WRITE_COEF(0x10, 0x0020), WRITE_COEF(0x24, 0x0000),
+	WRITE_COEF(0x26, 0x0000), WRITE_COEF(0x29, 0x3000),
+	WRITE_COEF(0x37, 0xfe05), WRITE_COEF(0x45, 0x5089),
+	{}
+};
+
+static void alc256_fixup_set_coef_defaults(struct hda_codec *codec,
+					   const struct hda_fixup *fix,
+					   int action)
 {
 	/*
-	* A certain other OS sets these coeffs to different values. On at least one TongFang
-	* barebone these settings might survive even a cold reboot. So to restore a clean slate the
-	* values are explicitly reset to default here. Without this, the external microphone is
-	* always in a plugged-in state, while the internal microphone is always in an unplugged
-	* state, breaking the ability to use the internal microphone.
-	*/
-	alc_write_coef_idx(codec, 0x24, 0x0000);
-	alc_write_coef_idx(codec, 0x26, 0x0000);
-	alc_write_coef_idx(codec, 0x29, 0x3000);
-	alc_write_coef_idx(codec, 0x37, 0xfe05);
-	alc_write_coef_idx(codec, 0x45, 0x5089);
+	 * A certain other OS sets these coeffs to different values. On at least
+	 * one TongFang barebone these settings might survive even a cold
+	 * reboot. So to restore a clean slate the values are explicitly reset
+	 * to default here. Without this, the external microphone is always in a
+	 * plugged-in state, while the internal microphone is always in an
+	 * unplugged state, breaking the ability to use the internal microphone.
+	 */
+	alc_process_coef_fw(codec, alc256_fixup_set_coef_defaults_coefs);
 }
 
 static const struct coef_fw alc233_fixup_no_audio_jack_coefs[] = {
@@ -6704,7 +6708,7 @@ enum {
 	ALC287_FIXUP_LEGION_15IMHG05_AUTOMUTE,
 	ALC287_FIXUP_YOGA7_14ITL_SPEAKERS,
 	ALC287_FIXUP_13S_GEN2_SPEAKERS,
-	ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS,
+	ALC256_FIXUP_SET_COEF_DEFAULTS,
 	ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 	ALC233_FIXUP_NO_AUDIO_JACK,
 };
@@ -8404,9 +8408,9 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_HEADSET_MODE,
 	},
-	[ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS] = {
+	[ALC256_FIXUP_SET_COEF_DEFAULTS] = {
 		.type = HDA_FIXUP_FUNC,
-		.v.func = alc256_fixup_tongfang_reset_persistent_settings,
+		.v.func = alc256_fixup_set_coef_defaults,
 	},
 	[ALC245_FIXUP_HP_GPIO_LED] = {
 		.type = HDA_FIXUP_FUNC,
@@ -8866,7 +8870,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1b7d, 0xa831, "Ordissimo EVE2 ", ALC269VB_FIXUP_ORDISSIMO_EVE2), /* Also known as Malata PC-B1303 */
 	SND_PCI_QUIRK(0x1c06, 0x2013, "Lemote A1802", ALC269_FIXUP_LEMOTE_A1802),
 	SND_PCI_QUIRK(0x1c06, 0x2015, "Lemote A190X", ALC269_FIXUP_LEMOTE_A190X),
-	SND_PCI_QUIRK(0x1d05, 0x1132, "TongFang PHxTxX1", ALC256_FIXUP_TONGFANG_RESET_PERSISTENT_SETTINGS),
+	SND_PCI_QUIRK(0x1d05, 0x1132, "TongFang PHxTxX1", ALC256_FIXUP_SET_COEF_DEFAULTS),
 	SND_PCI_QUIRK(0x1d72, 0x1602, "RedmiBook", ALC255_FIXUP_XIAOMI_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1d72, 0x1701, "XiaomiNotebook Pro", ALC298_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1d72, 0x1901, "RedmiBook 14", ALC256_FIXUP_ASUS_HEADSET_MIC),
-- 
GitLab


From 02b2b691b77cd7b951fa7b6c9d44d4e472cdc823 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 1 Dec 2021 08:36:04 +0100
Subject: [PATCH 2141/4878] ALSA: pcm: oss: Fix negative period/buffer sizes

commit 9d2479c960875ca1239bcb899f386970c13d9cfe upstream.

The period size calculation in OSS layer may receive a negative value
as an error, but the code there assumes only the positive values and
handle them with size_t.  Due to that, a too big value may be passed
to the lower layers.

This patch changes the code to handle with ssize_t and adds the proper
error checks appropriately.

Reported-by: syzbot+bb348e9f9a954d42746f@syzkaller.appspotmail.com
Reported-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1638270978-42412-1-git-send-email-cuibixuan@linux.alibaba.com
Link: https://lore.kernel.org/r/20211201073606.11660-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/oss/pcm_oss.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 142fc751a8477..a99b187e6cc9e 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -147,7 +147,7 @@ snd_pcm_hw_param_value_min(const struct snd_pcm_hw_params *params,
  *
  * Return the maximum value for field PAR.
  */
-static unsigned int
+static int
 snd_pcm_hw_param_value_max(const struct snd_pcm_hw_params *params,
 			   snd_pcm_hw_param_t var, int *dir)
 {
@@ -682,18 +682,24 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
 				   struct snd_pcm_hw_params *oss_params,
 				   struct snd_pcm_hw_params *slave_params)
 {
-	size_t s;
-	size_t oss_buffer_size, oss_period_size, oss_periods;
-	size_t min_period_size, max_period_size;
+	ssize_t s;
+	ssize_t oss_buffer_size;
+	ssize_t oss_period_size, oss_periods;
+	ssize_t min_period_size, max_period_size;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	size_t oss_frame_size;
 
 	oss_frame_size = snd_pcm_format_physical_width(params_format(oss_params)) *
 			 params_channels(oss_params) / 8;
 
+	oss_buffer_size = snd_pcm_hw_param_value_max(slave_params,
+						     SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+						     NULL);
+	if (oss_buffer_size <= 0)
+		return -EINVAL;
 	oss_buffer_size = snd_pcm_plug_client_size(substream,
-						   snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, NULL)) * oss_frame_size;
-	if (!oss_buffer_size)
+						   oss_buffer_size * oss_frame_size);
+	if (oss_buffer_size <= 0)
 		return -EINVAL;
 	oss_buffer_size = rounddown_pow_of_two(oss_buffer_size);
 	if (atomic_read(&substream->mmap_count)) {
@@ -730,7 +736,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
 
 	min_period_size = snd_pcm_plug_client_size(substream,
 						   snd_pcm_hw_param_value_min(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL));
-	if (min_period_size) {
+	if (min_period_size > 0) {
 		min_period_size *= oss_frame_size;
 		min_period_size = roundup_pow_of_two(min_period_size);
 		if (oss_period_size < min_period_size)
@@ -739,7 +745,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
 
 	max_period_size = snd_pcm_plug_client_size(substream,
 						   snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, NULL));
-	if (max_period_size) {
+	if (max_period_size > 0) {
 		max_period_size *= oss_frame_size;
 		max_period_size = rounddown_pow_of_two(max_period_size);
 		if (oss_period_size > max_period_size)
@@ -752,7 +758,7 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream,
 		oss_periods = substream->oss.setup.periods;
 
 	s = snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIODS, NULL);
-	if (runtime->oss.maxfrags && s > runtime->oss.maxfrags)
+	if (s > 0 && runtime->oss.maxfrags && s > runtime->oss.maxfrags)
 		s = runtime->oss.maxfrags;
 	if (oss_periods > s)
 		oss_periods = s;
-- 
GitLab


From ad45babf7886e7a212ee1d5eda9ef49f696db43c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 1 Dec 2021 08:36:05 +0100
Subject: [PATCH 2142/4878] ALSA: pcm: oss: Limit the period size to 16MB

commit 8839c8c0f77ab8fc0463f4ab8b37fca3f70677c2 upstream.

Set the practical limit to the period size (the fragment shift in OSS)
instead of a full 31bit; a too large value could lead to the exhaust
of memory as we allocate temporary buffers of the period size, too.

As of this patch, we set to 16MB limit, which should cover all use
cases.

Reported-by: syzbot+bb348e9f9a954d42746f@syzkaller.appspotmail.com
Reported-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1638270978-42412-1-git-send-email-cuibixuan@linux.alibaba.com
Link: https://lore.kernel.org/r/20211201073606.11660-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/oss/pcm_oss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index a99b187e6cc9e..fce95b1dcc029 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -1953,7 +1953,7 @@ static int snd_pcm_oss_set_fragment1(struct snd_pcm_substream *substream, unsign
 	if (runtime->oss.subdivision || runtime->oss.fragshift)
 		return -EINVAL;
 	fragshift = val & 0xffff;
-	if (fragshift >= 31)
+	if (fragshift >= 25) /* should be large enough */
 		return -EINVAL;
 	runtime->oss.fragshift = fragshift;
 	runtime->oss.maxfrags = (val >> 16) & 0xffff;
-- 
GitLab


From 07977a3f3d55b29e796dbf1134ebbceeaa4e8732 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 1 Dec 2021 08:36:06 +0100
Subject: [PATCH 2143/4878] ALSA: pcm: oss: Handle missing errors in
 snd_pcm_oss_change_params*()

commit 6665bb30a6b1a4a853d52557c05482ee50e71391 upstream.

A couple of calls in snd_pcm_oss_change_params_locked() ignore the
possible errors.  Catch those errors and abort the operation for
avoiding further problems.

Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211201073606.11660-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/oss/pcm_oss.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index fce95b1dcc029..77727a69c3c4e 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -884,8 +884,15 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
 		err = -EINVAL;
 		goto failure;
 	}
-	choose_rate(substream, sparams, runtime->oss.rate);
-	snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_CHANNELS, runtime->oss.channels, NULL);
+
+	err = choose_rate(substream, sparams, runtime->oss.rate);
+	if (err < 0)
+		goto failure;
+	err = snd_pcm_hw_param_near(substream, sparams,
+				    SNDRV_PCM_HW_PARAM_CHANNELS,
+				    runtime->oss.channels, NULL);
+	if (err < 0)
+		goto failure;
 
 	format = snd_pcm_oss_format_from(runtime->oss.format);
 
-- 
GitLab


From 75490bcbd0766db199d35dcbf18f992727c4abfb Mon Sep 17 00:00:00 2001
From: Roman Bolshakov <r.bolshakov@yadro.com>
Date: Fri, 12 Nov 2021 17:54:46 +0300
Subject: [PATCH 2144/4878] scsi: qla2xxx: Format log strings only if needed

commit 69002c8ce914ef0ae22a6ea14b43bb30b9a9a6a8 upstream.

Commit 598a90f2002c ("scsi: qla2xxx: add ring buffer for tracing debug
logs") introduced unconditional log string formatting to ql_dbg() even if
ql_dbg_log event is disabled. It harms performance because some strings are
formatted in fastpath and/or interrupt context.

Link: https://lore.kernel.org/r/20211112145446.51210-1-r.bolshakov@yadro.com
Fixes: 598a90f2002c ("scsi: qla2xxx: add ring buffer for tracing debug logs")
Cc: Rajan Shanmugavelu <rajan.shanmugavelu@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/qla2xxx/qla_dbg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 3a20bf8ce5ab9..00b4d033b07a9 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -2477,6 +2477,9 @@ ql_dbg(uint level, scsi_qla_host_t *vha, uint id, const char *fmt, ...)
 	struct va_format vaf;
 	char pbuf[64];
 
+	if (!ql_mask_match(level) && !trace_ql_dbg_log_enabled())
+		return;
+
 	va_start(va, fmt);
 
 	vaf.fmt = fmt;
-- 
GitLab


From 41b3cc57d626d2d49c95c8208a86ab3e93ed4a68 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Wed, 24 Nov 2021 14:14:23 -0500
Subject: [PATCH 2145/4878] btrfs: clear extent buffer uptodate when we fail to
 write it

commit c2e39305299f0118298c2201f6d6cc7d3485f29e upstream.

I got dmesg errors on generic/281 on our overnight fstests.  Looking at
the history this happens occasionally, with errors like this

  WARNING: CPU: 0 PID: 673217 at fs/btrfs/extent_io.c:6848 assert_eb_page_uptodate+0x3f/0x50
  CPU: 0 PID: 673217 Comm: kworker/u4:13 Tainted: G        W         5.16.0-rc2+ #469
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014
  Workqueue: btrfs-cache btrfs_work_helper
  RIP: 0010:assert_eb_page_uptodate+0x3f/0x50
  RSP: 0018:ffffae598230bc60 EFLAGS: 00010246
  RAX: 0017ffffc0002112 RBX: ffffebaec4100900 RCX: 0000000000001000
  RDX: ffffebaec45733c7 RSI: ffffebaec4100900 RDI: ffff9fd98919f340
  RBP: 0000000000000d56 R08: ffff9fd98e300000 R09: 0000000000000000
  R10: 0001207370a91c50 R11: 0000000000000000 R12: 00000000000007b0
  R13: ffff9fd98919f340 R14: 0000000001500000 R15: 0000000001cb0000
  FS:  0000000000000000(0000) GS:ffff9fd9fbc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007f549fcf8940 CR3: 0000000114908004 CR4: 0000000000370ef0
  Call Trace:

   extent_buffer_test_bit+0x3f/0x70
   free_space_test_bit+0xa6/0xc0
   load_free_space_tree+0x1d6/0x430
   caching_thread+0x454/0x630
   ? rcu_read_lock_sched_held+0x12/0x60
   ? rcu_read_lock_sched_held+0x12/0x60
   ? rcu_read_lock_sched_held+0x12/0x60
   ? lock_release+0x1f0/0x2d0
   btrfs_work_helper+0xf2/0x3e0
   ? lock_release+0x1f0/0x2d0
   ? finish_task_switch.isra.0+0xf9/0x3a0
   process_one_work+0x270/0x5a0
   worker_thread+0x55/0x3c0
   ? process_one_work+0x5a0/0x5a0
   kthread+0x174/0x1a0
   ? set_kthread_struct+0x40/0x40
   ret_from_fork+0x1f/0x30

This happens because we're trying to read from a extent buffer page that
is !PageUptodate.  This happens because we will clear the page uptodate
when we have an IO error, but we don't clear the extent buffer uptodate.
If we do a read later and find this extent buffer we'll think its valid
and not return an error, and then trip over this warning.

Fix this by also clearing uptodate on the extent buffer when this
happens, so that we get an error when we do a btrfs_search_slot() and
find this block later.

CC: stable@vger.kernel.org # 5.4+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/extent_io.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 81e98a457130f..5fc65a780f83b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3769,6 +3769,12 @@ static void set_btree_ioerr(struct page *page)
 	if (test_and_set_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags))
 		return;
 
+	/*
+	 * A read may stumble upon this buffer later, make sure that it gets an
+	 * error and knows there was an error.
+	 */
+	clear_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);
+
 	/*
 	 * If we error out, we should add back the dirty_metadata_bytes
 	 * to make it consistent.
-- 
GitLab


From caf9b352dc58a8d82036078f9eaf18db4e1bcce4 Mon Sep 17 00:00:00 2001
From: Qu Wenruo <wqu@suse.com>
Date: Wed, 1 Dec 2021 19:56:17 +0800
Subject: [PATCH 2146/4878] btrfs: replace the BUG_ON in btrfs_del_root_ref
 with proper error handling

commit 8289ed9f93bef2762f9184e136d994734b16d997 upstream.

I hit the BUG_ON() with generic/475 test case, and to my surprise, all
callers of btrfs_del_root_ref() are already aborting transaction, thus
there is not need for such BUG_ON(), just go to @out label and caller
will properly handle the error.

CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/root-tree.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 702dc5441f039..db37a37996497 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -336,7 +336,8 @@ int btrfs_del_root_ref(struct btrfs_trans_handle *trans, u64 root_id,
 	key.offset = ref_id;
 again:
 	ret = btrfs_search_slot(trans, tree_root, &key, path, -1, 1);
-	BUG_ON(ret < 0);
+	if (ret < 0)
+		goto out;
 	if (ret == 0) {
 		leaf = path->nodes[0];
 		ref = btrfs_item_ptr(leaf, path->slots[0],
-- 
GitLab


From 8b4264c27b821d6b3550fd67c0169cbc5549db8c Mon Sep 17 00:00:00 2001
From: Markus Hochholdinger <markus@hochholdinger.net>
Date: Tue, 16 Nov 2021 10:21:35 +0000
Subject: [PATCH 2147/4878] md: fix update super 1.0 on rdev size change

commit 55df1ce0d4e086e05a8ab20619c73c729350f965 upstream.

The superblock of version 1.0 doesn't get moved to the new position on a
device size change. This leads to a rdev without a superblock on a known
position, the raid can't be re-assembled.

The line was removed by mistake and is re-added by this patch.

Fixes: d9c0fa509eaf ("md: fix max sectors calculation for super 1.0")
Cc: stable@vger.kernel.org
Signed-off-by: Markus Hochholdinger <markus@hochholdinger.net>
Reviewed-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/md.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 7871e7dcd4836..2069b16b50eca 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2252,6 +2252,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors)
 
 		if (!num_sectors || num_sectors > max_sectors)
 			num_sectors = max_sectors;
+		rdev->sb_start = sb_start;
 	}
 	sb = page_address(rdev->sb_page);
 	sb->data_size = cpu_to_le64(num_sectors);
-- 
GitLab


From eeb0711801f5e19ef654371b627682aed3b11373 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 29 Nov 2021 15:08:00 -0500
Subject: [PATCH 2148/4878] nfsd: fix use-after-free due to delegation race

commit 548ec0805c399c65ed66c6641be467f717833ab5 upstream.

A delegation break could arrive as soon as we've called vfs_setlease.  A
delegation break runs a callback which immediately (in
nfsd4_cb_recall_prepare) adds the delegation to del_recall_lru.  If we
then exit nfs4_set_delegation without hashing the delegation, it will be
freed as soon as the callback is done with it, without ever being
removed from del_recall_lru.

Symptoms show up later as use-after-free or list corruption warnings,
usually in the laundromat thread.

I suspect aba2072f4523 "nfsd: grant read delegations to clients holding
writes" made this bug easier to hit, but I looked as far back as v3.0
and it looks to me it already had the same problem.  So I'm not sure
where the bug was introduced; it may have been there from the beginning.

Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs4state.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 1cdf7e0a5c22d..210147960c52e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1089,6 +1089,11 @@ hash_delegation_locked(struct nfs4_delegation *dp, struct nfs4_file *fp)
 	return 0;
 }
 
+static bool delegation_hashed(struct nfs4_delegation *dp)
+{
+	return !(list_empty(&dp->dl_perfile));
+}
+
 static bool
 unhash_delegation_locked(struct nfs4_delegation *dp)
 {
@@ -1096,7 +1101,7 @@ unhash_delegation_locked(struct nfs4_delegation *dp)
 
 	lockdep_assert_held(&state_lock);
 
-	if (list_empty(&dp->dl_perfile))
+	if (!delegation_hashed(dp))
 		return false;
 
 	dp->dl_stid.sc_type = NFS4_CLOSED_DELEG_STID;
@@ -4512,7 +4517,7 @@ static void nfsd4_cb_recall_prepare(struct nfsd4_callback *cb)
 	 * queued for a lease break. Don't queue it again.
 	 */
 	spin_lock(&state_lock);
-	if (dp->dl_time == 0) {
+	if (delegation_hashed(dp) && dp->dl_time == 0) {
 		dp->dl_time = ktime_get_boottime_seconds();
 		list_add_tail(&dp->dl_recall_lru, &nn->del_recall_lru);
 	}
-- 
GitLab


From c520943a00ad5015704969ad3304c956bcd49d25 Mon Sep 17 00:00:00 2001
From: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Date: Tue, 7 Dec 2021 15:00:39 +0100
Subject: [PATCH 2149/4878] nfsd: Fix nsfd startup race (again)

commit b10252c7ae9c9d7c90552f88b544a44ee773af64 upstream.

Commit bd5ae9288d64 ("nfsd: register pernet ops last, unregister first")
has re-opened rpc_pipefs_event() race against nfsd_net_id registration
(register_pernet_subsys()) which has been fixed by commit bb7ffbf29e76
("nfsd: fix nsfd startup race triggering BUG_ON").

Restore the order of register_pernet_subsys() vs register_cld_notifier().
Add WARN_ON() to prevent a future regression.

Crash info:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000012
CPU: 8 PID: 345 Comm: mount Not tainted 5.4.144-... #1
pc : rpc_pipefs_event+0x54/0x120 [nfsd]
lr : rpc_pipefs_event+0x48/0x120 [nfsd]
Call trace:
 rpc_pipefs_event+0x54/0x120 [nfsd]
 blocking_notifier_call_chain
 rpc_fill_super
 get_tree_keyed
 rpc_fs_get_tree
 vfs_get_tree
 do_mount
 ksys_mount
 __arm64_sys_mount
 el0_svc_handler
 el0_svc

Fixes: bd5ae9288d64 ("nfsd: register pernet ops last, unregister first")
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs4recover.c |  1 +
 fs/nfsd/nfsctl.c      | 14 +++++++-------
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index 186fa2c2c6ba6..f9b730c43192d 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -2156,6 +2156,7 @@ static struct notifier_block nfsd4_cld_block = {
 int
 register_cld_notifier(void)
 {
+	WARN_ON(!nfsd_net_id);
 	return rpc_pipefs_notifier_register(&nfsd4_cld_block);
 }
 
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 21c4ffda5f943..a8f954bbde4f5 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1525,12 +1525,9 @@ static int __init init_nfsd(void)
 	int retval;
 	printk(KERN_INFO "Installing knfsd (copyright (C) 1996 okir@monad.swb.de).\n");
 
-	retval = register_cld_notifier();
-	if (retval)
-		return retval;
 	retval = nfsd4_init_slabs();
 	if (retval)
-		goto out_unregister_notifier;
+		return retval;
 	retval = nfsd4_init_pnfs();
 	if (retval)
 		goto out_free_slabs;
@@ -1547,9 +1544,14 @@ static int __init init_nfsd(void)
 		goto out_free_exports;
 	retval = register_pernet_subsys(&nfsd_net_ops);
 	if (retval < 0)
+		goto out_free_filesystem;
+	retval = register_cld_notifier();
+	if (retval)
 		goto out_free_all;
 	return 0;
 out_free_all:
+	unregister_pernet_subsys(&nfsd_net_ops);
+out_free_filesystem:
 	unregister_filesystem(&nfsd_fs_type);
 out_free_exports:
 	remove_proc_entry("fs/nfs/exports", NULL);
@@ -1562,13 +1564,12 @@ out_free_stat:
 	nfsd4_exit_pnfs();
 out_free_slabs:
 	nfsd4_free_slabs();
-out_unregister_notifier:
-	unregister_cld_notifier();
 	return retval;
 }
 
 static void __exit exit_nfsd(void)
 {
+	unregister_cld_notifier();
 	unregister_pernet_subsys(&nfsd_net_ops);
 	nfsd_drc_slab_free();
 	remove_proc_entry("fs/nfs/exports", NULL);
@@ -1578,7 +1579,6 @@ static void __exit exit_nfsd(void)
 	nfsd4_free_slabs();
 	nfsd4_exit_pnfs();
 	unregister_filesystem(&nfsd_fs_type);
-	unregister_cld_notifier();
 }
 
 MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>");
-- 
GitLab


From 33204825cc2b0f3184ef6bc8426a973a30566578 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Wed, 8 Dec 2021 07:57:20 -0500
Subject: [PATCH 2150/4878] tracefs: Have new files inherit the ownership of
 their parent

commit ee7f3666995d8537dec17b1d35425f28877671a9 upstream.

If directories in tracefs have their ownership changed, then any new files
and directories that are created under those directories should inherit
the ownership of the director they are created in.

Link: https://lkml.kernel.org/r/20211208075720.4855d180@gandalf.local.home

Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Yabin Cui <yabinc@google.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: stable@vger.kernel.org
Fixes: 4282d60689d4f ("tracefs: Add new tracefs file system")
Reported-by: Kalesh Singh <kaleshsingh@google.com>
Reported: https://lore.kernel.org/all/CAC_TJve8MMAv+H_NdLSJXZUSoxOEq2zB_pVaJ9p=7H6Bu3X76g@mail.gmail.com/
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/tracefs/inode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index bf58ae6f984fe..3d7bb4c8c2618 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -412,6 +412,8 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode,
 	inode->i_mode = mode;
 	inode->i_fop = fops ? fops : &tracefs_file_operations;
 	inode->i_private = data;
+	inode->i_uid = d_inode(dentry->d_parent)->i_uid;
+	inode->i_gid = d_inode(dentry->d_parent)->i_gid;
 	d_instantiate(dentry, inode);
 	fsnotify_create(dentry->d_parent->d_inode, dentry);
 	return end_creating(dentry);
@@ -434,6 +436,8 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP;
 	inode->i_op = ops;
 	inode->i_fop = &simple_dir_operations;
+	inode->i_uid = d_inode(dentry->d_parent)->i_uid;
+	inode->i_gid = d_inode(dentry->d_parent)->i_gid;
 
 	/* directory inodes start off with i_nlink == 2 (for "." entry) */
 	inc_nlink(inode);
-- 
GitLab


From 172a982244182180dc1823c96c449b93996d6d36 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Tue, 30 Nov 2021 14:23:09 +0100
Subject: [PATCH 2151/4878] mmc: renesas_sdhi: initialize variable properly
 when tuning

commit 7dba402807a85fa3723f4a27504813caf81cc9d7 upstream.

'cmd_error' is not necessarily initialized on some error paths in
mmc_send_tuning(). Initialize it.

Fixes: 2c9017d0b5d3 ("mmc: renesas_sdhi: abort tuning when timeout detected")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211130132309.18246-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/renesas_sdhi_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index addaaf2810e26..782879d46ff48 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -660,7 +660,7 @@ static int renesas_sdhi_execute_tuning(struct mmc_host *mmc, u32 opcode)
 
 	/* Issue CMD19 twice for each tap */
 	for (i = 0; i < 2 * priv->tap_num; i++) {
-		int cmd_error;
+		int cmd_error = 0;
 
 		/* Set sampling clock position */
 		sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_TAPSET, i % priv->tap_num);
-- 
GitLab


From 17edb38e76d672a6d36e0e3438b86869f11724fa Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Tue, 16 Nov 2021 02:34:07 +0300
Subject: [PATCH 2152/4878] clk: qcom: regmap-mux: fix parent clock lookup

commit 9a61f813fcc8d56d85fcf9ca6119cf2b5ac91dd5 upstream.

The function mux_get_parent() uses qcom_find_src_index() to find the
parent clock index, which is incorrect: qcom_find_src_index() uses src
enum for the lookup, while mux_get_parent() should use cfg field (which
corresponds to the register value). Add qcom_find_cfg_index() function
doing this kind of lookup and use it for mux parent lookup.

Fixes: df964016490b ("clk: qcom: add parent map for regmap mux")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211115233407.1046179-1-dmitry.baryshkov@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/clk/qcom/clk-regmap-mux.c |  2 +-
 drivers/clk/qcom/common.c         | 12 ++++++++++++
 drivers/clk/qcom/common.h         |  2 ++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/clk-regmap-mux.c b/drivers/clk/qcom/clk-regmap-mux.c
index b2d00b4519634..45d9cca28064f 100644
--- a/drivers/clk/qcom/clk-regmap-mux.c
+++ b/drivers/clk/qcom/clk-regmap-mux.c
@@ -28,7 +28,7 @@ static u8 mux_get_parent(struct clk_hw *hw)
 	val &= mask;
 
 	if (mux->parent_map)
-		return qcom_find_src_index(hw, mux->parent_map, val);
+		return qcom_find_cfg_index(hw, mux->parent_map, val);
 
 	return val;
 }
diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
index 60d2a78d13950..2af04fc4abfa9 100644
--- a/drivers/clk/qcom/common.c
+++ b/drivers/clk/qcom/common.c
@@ -69,6 +69,18 @@ int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map, u8 src)
 }
 EXPORT_SYMBOL_GPL(qcom_find_src_index);
 
+int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map, u8 cfg)
+{
+	int i, num_parents = clk_hw_get_num_parents(hw);
+
+	for (i = 0; i < num_parents; i++)
+		if (cfg == map[i].cfg)
+			return i;
+
+	return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(qcom_find_cfg_index);
+
 struct regmap *
 qcom_cc_map(struct platform_device *pdev, const struct qcom_cc_desc *desc)
 {
diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h
index bb39a7e106d8a..9c8f7b798d9fc 100644
--- a/drivers/clk/qcom/common.h
+++ b/drivers/clk/qcom/common.h
@@ -49,6 +49,8 @@ extern void
 qcom_pll_set_fsm_mode(struct regmap *m, u32 reg, u8 bias_count, u8 lock_count);
 extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map,
 			       u8 src);
+extern int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map,
+			       u8 cfg);
 
 extern int qcom_cc_register_board_clk(struct device *dev, const char *path,
 				      const char *name, unsigned long rate);
-- 
GitLab


From 2737d0bc21b6db199b4145e12b9f1745577d7944 Mon Sep 17 00:00:00 2001
From: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Date: Wed, 8 Dec 2021 03:39:35 +0100
Subject: [PATCH 2153/4878] drm/syncobj: Deal with signalled fences in
 drm_syncobj_find_fence.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit b19926d4f3a660a8b76e5d989ffd1168e619a5c4 upstream.

dma_fence_chain_find_seqno only ever returns the top fence in the
chain or an unsignalled fence. Hence if we request a seqno that
is already signalled it returns a NULL fence. Some callers are
not prepared to handle this, like the syncobj transfer functions
for example.

This behavior is "new" with timeline syncobj and it looks like
not all callers were updated. To fix this behavior make sure
that a successful drm_sync_find_fence always returns a non-NULL
fence.

v2: Move the fix to drm_syncobj_find_fence from the transfer
    functions.

Fixes: ea569910cbab ("drm/syncobj: add transition iotcls between binary and timeline v2")
Cc: stable@vger.kernel.org
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211208023935.17018-1-bas@basnieuwenhuizen.nl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/drm_syncobj.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 3491460498491..993898a2c7791 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -391,8 +391,17 @@ int drm_syncobj_find_fence(struct drm_file *file_private,
 
 	if (*fence) {
 		ret = dma_fence_chain_find_seqno(fence, point);
-		if (!ret)
+		if (!ret) {
+			/* If the requested seqno is already signaled
+			 * drm_syncobj_find_fence may return a NULL
+			 * fence. To make sure the recipient gets
+			 * signalled, use a new fence instead.
+			 */
+			if (!*fence)
+				*fence = dma_fence_get_stub();
+
 			goto out;
+		}
 		dma_fence_put(*fence);
 	} else {
 		ret = -EINVAL;
-- 
GitLab


From 703dde112021c93d6e89443c070e7dbd4dea612e Mon Sep 17 00:00:00 2001
From: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Date: Tue, 23 Nov 2021 20:16:54 +0900
Subject: [PATCH 2154/4878] can: pch_can: pch_can_rx_normal: fix use after free

commit 94cddf1e9227a171b27292509d59691819c458db upstream.

After calling netif_receive_skb(skb), dereferencing skb is unsafe.
Especially, the can_frame cf which aliases skb memory is dereferenced
just after the call netif_receive_skb(skb).

Reordering the lines solves the issue.

Fixes: b21d18b51b31 ("can: Topcliff: Add PCH_CAN driver.")
Link: https://lore.kernel.org/all/20211123111654.621610-1-mailhol.vincent@wanadoo.fr
Cc: stable@vger.kernel.org
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/pch_can.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c
index 5c180d2f3c3c1..79d9abdcc65aa 100644
--- a/drivers/net/can/pch_can.c
+++ b/drivers/net/can/pch_can.c
@@ -692,11 +692,11 @@ static int pch_can_rx_normal(struct net_device *ndev, u32 obj_num, int quota)
 			cf->data[i + 1] = data_reg >> 8;
 		}
 
-		netif_receive_skb(skb);
 		rcv_pkts++;
 		stats->rx_packets++;
 		quota--;
 		stats->rx_bytes += cf->can_dlc;
+		netif_receive_skb(skb);
 
 		pch_fifo_thresh(priv, obj_num);
 		obj_num++;
-- 
GitLab


From f76580d82c62e57ce8a59447b1cfb481e78dc67c Mon Sep 17 00:00:00 2001
From: Brian Silverman <brian.silverman@bluerivertech.com>
Date: Mon, 29 Nov 2021 14:26:28 -0800
Subject: [PATCH 2155/4878] can: m_can: Disable and ignore ELO interrupt

commit f58ac1adc76b5beda43c64ef359056077df4d93a upstream.

With the design of this driver, this condition is often triggered.
However, the counter that this interrupt indicates an overflow is never
read either, so overflowing is harmless.

On my system, when a CAN bus starts flapping up and down, this locks up
the whole system with lots of interrupts and printks.

Specifically, this interrupt indicates the CEL field of ECR has
overflowed. All reads of ECR mask out CEL.

Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support")
Link: https://lore.kernel.org/all/20211129222628.7490-1-brian.silverman@bluerivertech.com
Cc: stable@vger.kernel.org
Signed-off-by: Brian Silverman <brian.silverman@bluerivertech.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/m_can/m_can.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index 62bcef4bb95fd..19a7e4adb9338 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -207,15 +207,15 @@ enum m_can_reg {
 
 /* Interrupts for version 3.0.x */
 #define IR_ERR_LEC_30X	(IR_STE	| IR_FOE | IR_ACKE | IR_BE | IR_CRCE)
-#define IR_ERR_BUS_30X	(IR_ERR_LEC_30X | IR_WDI | IR_ELO | IR_BEU | \
-			 IR_BEC | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | \
-			 IR_RF1L | IR_RF0L)
+#define IR_ERR_BUS_30X	(IR_ERR_LEC_30X | IR_WDI | IR_BEU | IR_BEC | \
+			 IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \
+			 IR_RF0L)
 #define IR_ERR_ALL_30X	(IR_ERR_STATE | IR_ERR_BUS_30X)
 /* Interrupts for version >= 3.1.x */
 #define IR_ERR_LEC_31X	(IR_PED | IR_PEA)
-#define IR_ERR_BUS_31X      (IR_ERR_LEC_31X | IR_WDI | IR_ELO | IR_BEU | \
-			 IR_BEC | IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | \
-			 IR_RF1L | IR_RF0L)
+#define IR_ERR_BUS_31X      (IR_ERR_LEC_31X | IR_WDI | IR_BEU | IR_BEC | \
+			 IR_TOO | IR_MRAF | IR_TSW | IR_TEFL | IR_RF1L | \
+			 IR_RF0L)
 #define IR_ERR_ALL_31X	(IR_ERR_STATE | IR_ERR_BUS_31X)
 
 /* Interrupt Line Select (ILS) */
@@ -752,8 +752,6 @@ static void m_can_handle_other_err(struct net_device *dev, u32 irqstatus)
 {
 	if (irqstatus & IR_WDI)
 		netdev_err(dev, "Message RAM Watchdog event due to missing READY\n");
-	if (irqstatus & IR_ELO)
-		netdev_err(dev, "Error Logging Overflow\n");
 	if (irqstatus & IR_BEU)
 		netdev_err(dev, "Bit Error Uncorrected\n");
 	if (irqstatus & IR_BEC)
-- 
GitLab


From 2f8eb4c4c8f609ba42a34ce8584d650e9e0e29ac Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 8 Dec 2021 07:58:53 +0100
Subject: [PATCH 2156/4878] libata: add horkage for ASMedia 1092

commit a66307d473077b7aeba74e9b09c841ab3d399c2d upstream.

The ASMedia 1092 has a configuration mode which will present a
dummy device; sadly the implementation falsely claims to provide
a device with 100M which doesn't actually exist.
So disable this device to avoid errors during boot.

Cc: stable@vger.kernel.org
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libata-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 8acf99b88b21e..1f54f82d22d61 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3831,6 +3831,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "VRFDFC22048UCHC-TE*", NULL,		ATA_HORKAGE_NODMA },
 	/* Odd clown on sil3726/4726 PMPs */
 	{ "Config  Disk",	NULL,		ATA_HORKAGE_DISABLE },
+	/* Similar story with ASMedia 1092 */
+	{ "ASMT109x- Config",	NULL,		ATA_HORKAGE_DISABLE },
 
 	/* Weird ATAPI devices */
 	{ "TORiSAN DVD-ROM DRD-N216", NULL,	ATA_HORKAGE_MAX_SEC_128 },
-- 
GitLab


From 8e04c8397bf98235b1aa41153717de7a05e652a2 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 8 Dec 2021 17:04:51 -0800
Subject: [PATCH 2157/4878] wait: add wake_up_pollfree()

commit 42288cb44c4b5fff7653bc392b583a2b8bd6a8c0 upstream.

Several ->poll() implementations are special in that they use a
waitqueue whose lifetime is the current task, rather than the struct
file as is normally the case.  This is okay for blocking polls, since a
blocking poll occurs within one task; however, non-blocking polls
require another solution.  This solution is for the queue to be cleared
before it is freed, using 'wake_up_poll(wq, EPOLLHUP | POLLFREE);'.

However, that has a bug: wake_up_poll() calls __wake_up() with
nr_exclusive=1.  Therefore, if there are multiple "exclusive" waiters,
and the wakeup function for the first one returns a positive value, only
that one will be called.  That's *not* what's needed for POLLFREE;
POLLFREE is special in that it really needs to wake up everyone.

Considering the three non-blocking poll systems:

- io_uring poll doesn't handle POLLFREE at all, so it is broken anyway.

- aio poll is unaffected, since it doesn't support exclusive waits.
  However, that's fragile, as someone could add this feature later.

- epoll doesn't appear to be broken by this, since its wakeup function
  returns 0 when it sees POLLFREE.  But this is fragile.

Although there is a workaround (see epoll), it's better to define a
function which always sends POLLFREE to all waiters.  Add such a
function.  Also make it verify that the queue really becomes empty after
all waiters have been woken up.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211209010455.42744-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/wait.h | 26 ++++++++++++++++++++++++++
 kernel/sched/wait.c  |  7 +++++++
 2 files changed, 33 insertions(+)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index f8b0704968a1e..9b8b0833100a0 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -207,6 +207,7 @@ void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void
 void __wake_up_locked_sync_key(struct wait_queue_head *wq_head, unsigned int mode, void *key);
 void __wake_up_locked(struct wait_queue_head *wq_head, unsigned int mode, int nr);
 void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode);
+void __wake_up_pollfree(struct wait_queue_head *wq_head);
 
 #define wake_up(x)			__wake_up(x, TASK_NORMAL, 1, NULL)
 #define wake_up_nr(x, nr)		__wake_up(x, TASK_NORMAL, nr, NULL)
@@ -235,6 +236,31 @@ void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode);
 #define wake_up_interruptible_sync_poll_locked(x, m)				\
 	__wake_up_locked_sync_key((x), TASK_INTERRUPTIBLE, poll_to_key(m))
 
+/**
+ * wake_up_pollfree - signal that a polled waitqueue is going away
+ * @wq_head: the wait queue head
+ *
+ * In the very rare cases where a ->poll() implementation uses a waitqueue whose
+ * lifetime is tied to a task rather than to the 'struct file' being polled,
+ * this function must be called before the waitqueue is freed so that
+ * non-blocking polls (e.g. epoll) are notified that the queue is going away.
+ *
+ * The caller must also RCU-delay the freeing of the wait_queue_head, e.g. via
+ * an explicit synchronize_rcu() or call_rcu(), or via SLAB_TYPESAFE_BY_RCU.
+ */
+static inline void wake_up_pollfree(struct wait_queue_head *wq_head)
+{
+	/*
+	 * For performance reasons, we don't always take the queue lock here.
+	 * Therefore, we might race with someone removing the last entry from
+	 * the queue, and proceed while they still hold the queue lock.
+	 * However, rcu_read_lock() is required to be held in such cases, so we
+	 * can safely proceed with an RCU-delayed free.
+	 */
+	if (waitqueue_active(wq_head))
+		__wake_up_pollfree(wq_head);
+}
+
 #define ___wait_cond_timeout(condition)						\
 ({										\
 	bool __cond = (condition);						\
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 21005b980a6b7..a55642aa3f68b 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -223,6 +223,13 @@ void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode)
 }
 EXPORT_SYMBOL_GPL(__wake_up_sync);	/* For internal use only */
 
+void __wake_up_pollfree(struct wait_queue_head *wq_head)
+{
+	__wake_up(wq_head, TASK_NORMAL, 0, poll_to_key(EPOLLHUP | POLLFREE));
+	/* POLLFREE must have cleared the queue. */
+	WARN_ON_ONCE(waitqueue_active(wq_head));
+}
+
 /*
  * Note: we use "set_current_state()" _after_ the wait-queue add,
  * because we need a memory barrier there on SMP, so that any
-- 
GitLab


From 9f3acee7eac8d8690134b09ba55e2c12164d24ae Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 8 Dec 2021 17:04:52 -0800
Subject: [PATCH 2158/4878] binder: use wake_up_pollfree()

commit a880b28a71e39013e357fd3adccd1d8a31bc69a8 upstream.

wake_up_poll() uses nr_exclusive=1, so it's not guaranteed to wake up
all exclusive waiters.  Yet, POLLFREE *must* wake up all waiters.  epoll
and aio poll are fortunately not affected by this, but it's very
fragile.  Thus, the new function wake_up_pollfree() has been introduced.

Convert binder to use wake_up_pollfree().

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: f5cb779ba163 ("ANDROID: binder: remove waitqueue when thread exits.")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211209010455.42744-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index a1255971e50ce..80e2bbb36422e 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -4784,23 +4784,20 @@ static int binder_thread_release(struct binder_proc *proc,
 	__release(&t->lock);
 
 	/*
-	 * If this thread used poll, make sure we remove the waitqueue
-	 * from any epoll data structures holding it with POLLFREE.
-	 * waitqueue_active() is safe to use here because we're holding
-	 * the inner lock.
+	 * If this thread used poll, make sure we remove the waitqueue from any
+	 * poll data structures holding it.
 	 */
-	if ((thread->looper & BINDER_LOOPER_STATE_POLL) &&
-	    waitqueue_active(&thread->wait)) {
-		wake_up_poll(&thread->wait, EPOLLHUP | POLLFREE);
-	}
+	if (thread->looper & BINDER_LOOPER_STATE_POLL)
+		wake_up_pollfree(&thread->wait);
 
 	binder_inner_proc_unlock(thread->proc);
 
 	/*
-	 * This is needed to avoid races between wake_up_poll() above and
-	 * and ep_remove_waitqueue() called for other reasons (eg the epoll file
-	 * descriptor being closed); ep_remove_waitqueue() holds an RCU read
-	 * lock, so we can be sure it's done after calling synchronize_rcu().
+	 * This is needed to avoid races between wake_up_pollfree() above and
+	 * someone else removing the last entry from the queue for other reasons
+	 * (e.g. ep_remove_wait_queue() being called due to an epoll file
+	 * descriptor being closed).  Such other users hold an RCU read lock, so
+	 * we can be sure they're done after we call synchronize_rcu().
 	 */
 	if (thread->looper & BINDER_LOOPER_STATE_POLL)
 		synchronize_rcu();
-- 
GitLab


From fc2f636ffc446d8e9530e441897f877922269051 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 8 Dec 2021 17:04:53 -0800
Subject: [PATCH 2159/4878] signalfd: use wake_up_pollfree()

commit 9537bae0da1f8d1e2361ab6d0479e8af7824e160 upstream.

wake_up_poll() uses nr_exclusive=1, so it's not guaranteed to wake up
all exclusive waiters.  Yet, POLLFREE *must* wake up all waiters.  epoll
and aio poll are fortunately not affected by this, but it's very
fragile.  Thus, the new function wake_up_pollfree() has been introduced.

Convert signalfd to use wake_up_pollfree().

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: d80e731ecab4 ("epoll: introduce POLLFREE to flush ->signalfd_wqh before kfree()")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211209010455.42744-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/signalfd.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/fs/signalfd.c b/fs/signalfd.c
index 456046e158737..b94fb5f81797a 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -35,17 +35,7 @@
 
 void signalfd_cleanup(struct sighand_struct *sighand)
 {
-	wait_queue_head_t *wqh = &sighand->signalfd_wqh;
-	/*
-	 * The lockless check can race with remove_wait_queue() in progress,
-	 * but in this case its caller should run under rcu_read_lock() and
-	 * sighand_cachep is SLAB_TYPESAFE_BY_RCU, we can safely return.
-	 */
-	if (likely(!waitqueue_active(wqh)))
-		return;
-
-	/* wait_queue_entry_t->func(POLLFREE) should do remove_wait_queue() */
-	wake_up_poll(wqh, EPOLLHUP | POLLFREE);
+	wake_up_pollfree(&sighand->signalfd_wqh);
 }
 
 struct signalfd_ctx {
-- 
GitLab


From e4d19740bccab792f16c7ca6fd1f9aea06193cb2 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 10 Dec 2021 15:48:04 -0800
Subject: [PATCH 2160/4878] aio: keep poll requests on waitqueue until
 completed

commit 363bee27e25804d8981dd1c025b4ad49dc39c530 upstream.

Currently, aio_poll_wake() will always remove the poll request from the
waitqueue.  Then, if aio_poll_complete_work() sees that none of the
polled events are ready and the request isn't cancelled, it re-adds the
request to the waitqueue.  (This can easily happen when polling a file
that doesn't pass an event mask when waking up its waitqueue.)

This is fundamentally broken for two reasons:

  1. If a wakeup occurs between vfs_poll() and the request being
     re-added to the waitqueue, it will be missed because the request
     wasn't on the waitqueue at the time.  Therefore, IOCB_CMD_POLL
     might never complete even if the polled file is ready.

  2. When the request isn't on the waitqueue, there is no way to be
     notified that the waitqueue is being freed (which happens when its
     lifetime is shorter than the struct file's).  This is supposed to
     happen via the waitqueue entries being woken up with POLLFREE.

Therefore, leave the requests on the waitqueue until they are actually
completed (or cancelled).  To keep track of when aio_poll_complete_work
needs to be scheduled, use new fields in struct poll_iocb.  Remove the
'done' field which is now redundant.

Note that this is consistent with how sys_poll() and eventpoll work;
their wakeup functions do *not* remove the waitqueue entries.

Fixes: 2c14fa838cbe ("aio: implement IOCB_CMD_POLL")
Cc: <stable@vger.kernel.org> # v4.18+
Link: https://lore.kernel.org/r/20211209010455.42744-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/aio.c | 83 ++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 63 insertions(+), 20 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index 6a21d8919409c..37c5f450d1596 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -182,8 +182,9 @@ struct poll_iocb {
 	struct file		*file;
 	struct wait_queue_head	*head;
 	__poll_t		events;
-	bool			done;
 	bool			cancelled;
+	bool			work_scheduled;
+	bool			work_need_resched;
 	struct wait_queue_entry	wait;
 	struct work_struct	work;
 };
@@ -1640,14 +1641,26 @@ static void aio_poll_complete_work(struct work_struct *work)
 	 * avoid further branches in the fast path.
 	 */
 	spin_lock_irq(&ctx->ctx_lock);
+	spin_lock(&req->head->lock);
 	if (!mask && !READ_ONCE(req->cancelled)) {
-		add_wait_queue(req->head, &req->wait);
+		/*
+		 * The request isn't actually ready to be completed yet.
+		 * Reschedule completion if another wakeup came in.
+		 */
+		if (req->work_need_resched) {
+			schedule_work(&req->work);
+			req->work_need_resched = false;
+		} else {
+			req->work_scheduled = false;
+		}
+		spin_unlock(&req->head->lock);
 		spin_unlock_irq(&ctx->ctx_lock);
 		return;
 	}
+	list_del_init(&req->wait.entry);
+	spin_unlock(&req->head->lock);
 	list_del_init(&iocb->ki_list);
 	iocb->ki_res.res = mangle_poll(mask);
-	req->done = true;
 	spin_unlock_irq(&ctx->ctx_lock);
 
 	iocb_put(iocb);
@@ -1661,9 +1674,9 @@ static int aio_poll_cancel(struct kiocb *iocb)
 
 	spin_lock(&req->head->lock);
 	WRITE_ONCE(req->cancelled, true);
-	if (!list_empty(&req->wait.entry)) {
-		list_del_init(&req->wait.entry);
+	if (!req->work_scheduled) {
 		schedule_work(&aiocb->poll.work);
+		req->work_scheduled = true;
 	}
 	spin_unlock(&req->head->lock);
 
@@ -1682,20 +1695,26 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
 	if (mask && !(mask & req->events))
 		return 0;
 
-	list_del_init(&req->wait.entry);
-
-	if (mask && spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) {
+	/*
+	 * Complete the request inline if possible.  This requires that three
+	 * conditions be met:
+	 *   1. An event mask must have been passed.  If a plain wakeup was done
+	 *	instead, then mask == 0 and we have to call vfs_poll() to get
+	 *	the events, so inline completion isn't possible.
+	 *   2. The completion work must not have already been scheduled.
+	 *   3. ctx_lock must not be busy.  We have to use trylock because we
+	 *	already hold the waitqueue lock, so this inverts the normal
+	 *	locking order.  Use irqsave/irqrestore because not all
+	 *	filesystems (e.g. fuse) call this function with IRQs disabled,
+	 *	yet IRQs have to be disabled before ctx_lock is obtained.
+	 */
+	if (mask && !req->work_scheduled &&
+	    spin_trylock_irqsave(&iocb->ki_ctx->ctx_lock, flags)) {
 		struct kioctx *ctx = iocb->ki_ctx;
 
-		/*
-		 * Try to complete the iocb inline if we can. Use
-		 * irqsave/irqrestore because not all filesystems (e.g. fuse)
-		 * call this function with IRQs disabled and because IRQs
-		 * have to be disabled before ctx_lock is obtained.
-		 */
+		list_del_init(&req->wait.entry);
 		list_del(&iocb->ki_list);
 		iocb->ki_res.res = mangle_poll(mask);
-		req->done = true;
 		if (iocb->ki_eventfd && eventfd_signal_count()) {
 			iocb = NULL;
 			INIT_WORK(&req->work, aio_poll_put_work);
@@ -1705,7 +1724,20 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
 		if (iocb)
 			iocb_put(iocb);
 	} else {
-		schedule_work(&req->work);
+		/*
+		 * Schedule the completion work if needed.  If it was already
+		 * scheduled, record that another wakeup came in.
+		 *
+		 * Don't remove the request from the waitqueue here, as it might
+		 * not actually be complete yet (we won't know until vfs_poll()
+		 * is called), and we must not miss any wakeups.
+		 */
+		if (req->work_scheduled) {
+			req->work_need_resched = true;
+		} else {
+			schedule_work(&req->work);
+			req->work_scheduled = true;
+		}
 	}
 	return 1;
 }
@@ -1752,8 +1784,9 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
 	req->events = demangle_poll(iocb->aio_buf) | EPOLLERR | EPOLLHUP;
 
 	req->head = NULL;
-	req->done = false;
 	req->cancelled = false;
+	req->work_scheduled = false;
+	req->work_need_resched = false;
 
 	apt.pt._qproc = aio_poll_queue_proc;
 	apt.pt._key = req->events;
@@ -1768,17 +1801,27 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
 	spin_lock_irq(&ctx->ctx_lock);
 	if (likely(req->head)) {
 		spin_lock(&req->head->lock);
-		if (unlikely(list_empty(&req->wait.entry))) {
-			if (apt.error)
+		if (list_empty(&req->wait.entry) || req->work_scheduled) {
+			/*
+			 * aio_poll_wake() already either scheduled the async
+			 * completion work, or completed the request inline.
+			 */
+			if (apt.error) /* unsupported case: multiple queues */
 				cancel = true;
 			apt.error = 0;
 			mask = 0;
 		}
 		if (mask || apt.error) {
+			/* Steal to complete synchronously. */
 			list_del_init(&req->wait.entry);
 		} else if (cancel) {
+			/* Cancel if possible (may be too late though). */
 			WRITE_ONCE(req->cancelled, true);
-		} else if (!req->done) { /* actually waiting for an event */
+		} else if (!list_empty(&req->wait.entry)) {
+			/*
+			 * Actually waiting for an event, so add the request to
+			 * active_reqs so that it can be cancelled if needed.
+			 */
 			list_add_tail(&aiocb->ki_list, &ctx->active_reqs);
 			aiocb->ki_cancel = aio_poll_cancel;
 		}
-- 
GitLab


From 47ffefd88abfffe8a040bcc1dd0554d4ea6f7689 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 10 Dec 2021 15:48:05 -0800
Subject: [PATCH 2161/4878] aio: fix use-after-free due to missing POLLFREE
 handling

commit 50252e4b5e989ce64555c7aef7516bdefc2fea72 upstream.

signalfd_poll() and binder_poll() are special in that they use a
waitqueue whose lifetime is the current task, rather than the struct
file as is normally the case.  This is okay for blocking polls, since a
blocking poll occurs within one task; however, non-blocking polls
require another solution.  This solution is for the queue to be cleared
before it is freed, by sending a POLLFREE notification to all waiters.

Unfortunately, only eventpoll handles POLLFREE.  A second type of
non-blocking poll, aio poll, was added in kernel v4.18, and it doesn't
handle POLLFREE.  This allows a use-after-free to occur if a signalfd or
binder fd is polled with aio poll, and the waitqueue gets freed.

Fix this by making aio poll handle POLLFREE.

A patch by Ramji Jiyani <ramjiyani@google.com>
(https://lore.kernel.org/r/20211027011834.2497484-1-ramjiyani@google.com)
tried to do this by making aio_poll_wake() always complete the request
inline if POLLFREE is seen.  However, that solution had two bugs.
First, it introduced a deadlock, as it unconditionally locked the aio
context while holding the waitqueue lock, which inverts the normal
locking order.  Second, it didn't consider that POLLFREE notifications
are missed while the request has been temporarily de-queued.

The second problem was solved by my previous patch.  This patch then
properly fixes the use-after-free by handling POLLFREE in a
deadlock-free way.  It does this by taking advantage of the fact that
freeing of the waitqueue is RCU-delayed, similar to what eventpoll does.

Fixes: 2c14fa838cbe ("aio: implement IOCB_CMD_POLL")
Cc: <stable@vger.kernel.org> # v4.18+
Link: https://lore.kernel.org/r/20211209010455.42744-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/aio.c                        | 137 ++++++++++++++++++++++++--------
 include/uapi/asm-generic/poll.h |   2 +-
 2 files changed, 107 insertions(+), 32 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index 37c5f450d1596..2a9dfa58ec3ab 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1622,6 +1622,51 @@ static void aio_poll_put_work(struct work_struct *work)
 	iocb_put(iocb);
 }
 
+/*
+ * Safely lock the waitqueue which the request is on, synchronizing with the
+ * case where the ->poll() provider decides to free its waitqueue early.
+ *
+ * Returns true on success, meaning that req->head->lock was locked, req->wait
+ * is on req->head, and an RCU read lock was taken.  Returns false if the
+ * request was already removed from its waitqueue (which might no longer exist).
+ */
+static bool poll_iocb_lock_wq(struct poll_iocb *req)
+{
+	wait_queue_head_t *head;
+
+	/*
+	 * While we hold the waitqueue lock and the waitqueue is nonempty,
+	 * wake_up_pollfree() will wait for us.  However, taking the waitqueue
+	 * lock in the first place can race with the waitqueue being freed.
+	 *
+	 * We solve this as eventpoll does: by taking advantage of the fact that
+	 * all users of wake_up_pollfree() will RCU-delay the actual free.  If
+	 * we enter rcu_read_lock() and see that the pointer to the queue is
+	 * non-NULL, we can then lock it without the memory being freed out from
+	 * under us, then check whether the request is still on the queue.
+	 *
+	 * Keep holding rcu_read_lock() as long as we hold the queue lock, in
+	 * case the caller deletes the entry from the queue, leaving it empty.
+	 * In that case, only RCU prevents the queue memory from being freed.
+	 */
+	rcu_read_lock();
+	head = smp_load_acquire(&req->head);
+	if (head) {
+		spin_lock(&head->lock);
+		if (!list_empty(&req->wait.entry))
+			return true;
+		spin_unlock(&head->lock);
+	}
+	rcu_read_unlock();
+	return false;
+}
+
+static void poll_iocb_unlock_wq(struct poll_iocb *req)
+{
+	spin_unlock(&req->head->lock);
+	rcu_read_unlock();
+}
+
 static void aio_poll_complete_work(struct work_struct *work)
 {
 	struct poll_iocb *req = container_of(work, struct poll_iocb, work);
@@ -1641,24 +1686,25 @@ static void aio_poll_complete_work(struct work_struct *work)
 	 * avoid further branches in the fast path.
 	 */
 	spin_lock_irq(&ctx->ctx_lock);
-	spin_lock(&req->head->lock);
-	if (!mask && !READ_ONCE(req->cancelled)) {
-		/*
-		 * The request isn't actually ready to be completed yet.
-		 * Reschedule completion if another wakeup came in.
-		 */
-		if (req->work_need_resched) {
-			schedule_work(&req->work);
-			req->work_need_resched = false;
-		} else {
-			req->work_scheduled = false;
+	if (poll_iocb_lock_wq(req)) {
+		if (!mask && !READ_ONCE(req->cancelled)) {
+			/*
+			 * The request isn't actually ready to be completed yet.
+			 * Reschedule completion if another wakeup came in.
+			 */
+			if (req->work_need_resched) {
+				schedule_work(&req->work);
+				req->work_need_resched = false;
+			} else {
+				req->work_scheduled = false;
+			}
+			poll_iocb_unlock_wq(req);
+			spin_unlock_irq(&ctx->ctx_lock);
+			return;
 		}
-		spin_unlock(&req->head->lock);
-		spin_unlock_irq(&ctx->ctx_lock);
-		return;
-	}
-	list_del_init(&req->wait.entry);
-	spin_unlock(&req->head->lock);
+		list_del_init(&req->wait.entry);
+		poll_iocb_unlock_wq(req);
+	} /* else, POLLFREE has freed the waitqueue, so we must complete */
 	list_del_init(&iocb->ki_list);
 	iocb->ki_res.res = mangle_poll(mask);
 	spin_unlock_irq(&ctx->ctx_lock);
@@ -1672,13 +1718,14 @@ static int aio_poll_cancel(struct kiocb *iocb)
 	struct aio_kiocb *aiocb = container_of(iocb, struct aio_kiocb, rw);
 	struct poll_iocb *req = &aiocb->poll;
 
-	spin_lock(&req->head->lock);
-	WRITE_ONCE(req->cancelled, true);
-	if (!req->work_scheduled) {
-		schedule_work(&aiocb->poll.work);
-		req->work_scheduled = true;
-	}
-	spin_unlock(&req->head->lock);
+	if (poll_iocb_lock_wq(req)) {
+		WRITE_ONCE(req->cancelled, true);
+		if (!req->work_scheduled) {
+			schedule_work(&aiocb->poll.work);
+			req->work_scheduled = true;
+		}
+		poll_iocb_unlock_wq(req);
+	} /* else, the request was force-cancelled by POLLFREE already */
 
 	return 0;
 }
@@ -1730,7 +1777,8 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
 		 *
 		 * Don't remove the request from the waitqueue here, as it might
 		 * not actually be complete yet (we won't know until vfs_poll()
-		 * is called), and we must not miss any wakeups.
+		 * is called), and we must not miss any wakeups.  POLLFREE is an
+		 * exception to this; see below.
 		 */
 		if (req->work_scheduled) {
 			req->work_need_resched = true;
@@ -1738,6 +1786,28 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
 			schedule_work(&req->work);
 			req->work_scheduled = true;
 		}
+
+		/*
+		 * If the waitqueue is being freed early but we can't complete
+		 * the request inline, we have to tear down the request as best
+		 * we can.  That means immediately removing the request from its
+		 * waitqueue and preventing all further accesses to the
+		 * waitqueue via the request.  We also need to schedule the
+		 * completion work (done above).  Also mark the request as
+		 * cancelled, to potentially skip an unneeded call to ->poll().
+		 */
+		if (mask & POLLFREE) {
+			WRITE_ONCE(req->cancelled, true);
+			list_del_init(&req->wait.entry);
+
+			/*
+			 * Careful: this *must* be the last step, since as soon
+			 * as req->head is NULL'ed out, the request can be
+			 * completed and freed, since aio_poll_complete_work()
+			 * will no longer need to take the waitqueue lock.
+			 */
+			smp_store_release(&req->head, NULL);
+		}
 	}
 	return 1;
 }
@@ -1745,6 +1815,7 @@ static int aio_poll_wake(struct wait_queue_entry *wait, unsigned mode, int sync,
 struct aio_poll_table {
 	struct poll_table_struct	pt;
 	struct aio_kiocb		*iocb;
+	bool				queued;
 	int				error;
 };
 
@@ -1755,11 +1826,12 @@ aio_poll_queue_proc(struct file *file, struct wait_queue_head *head,
 	struct aio_poll_table *pt = container_of(p, struct aio_poll_table, pt);
 
 	/* multiple wait queues per file are not supported */
-	if (unlikely(pt->iocb->poll.head)) {
+	if (unlikely(pt->queued)) {
 		pt->error = -EINVAL;
 		return;
 	}
 
+	pt->queued = true;
 	pt->error = 0;
 	pt->iocb->poll.head = head;
 	add_wait_queue(head, &pt->iocb->poll.wait);
@@ -1791,6 +1863,7 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
 	apt.pt._qproc = aio_poll_queue_proc;
 	apt.pt._key = req->events;
 	apt.iocb = aiocb;
+	apt.queued = false;
 	apt.error = -EINVAL; /* same as no support for IOCB_CMD_POLL */
 
 	/* initialized the list so that we can do list_empty checks */
@@ -1799,9 +1872,10 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
 
 	mask = vfs_poll(req->file, &apt.pt) & req->events;
 	spin_lock_irq(&ctx->ctx_lock);
-	if (likely(req->head)) {
-		spin_lock(&req->head->lock);
-		if (list_empty(&req->wait.entry) || req->work_scheduled) {
+	if (likely(apt.queued)) {
+		bool on_queue = poll_iocb_lock_wq(req);
+
+		if (!on_queue || req->work_scheduled) {
 			/*
 			 * aio_poll_wake() already either scheduled the async
 			 * completion work, or completed the request inline.
@@ -1817,7 +1891,7 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
 		} else if (cancel) {
 			/* Cancel if possible (may be too late though). */
 			WRITE_ONCE(req->cancelled, true);
-		} else if (!list_empty(&req->wait.entry)) {
+		} else if (on_queue) {
 			/*
 			 * Actually waiting for an event, so add the request to
 			 * active_reqs so that it can be cancelled if needed.
@@ -1825,7 +1899,8 @@ static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
 			list_add_tail(&aiocb->ki_list, &ctx->active_reqs);
 			aiocb->ki_cancel = aio_poll_cancel;
 		}
-		spin_unlock(&req->head->lock);
+		if (on_queue)
+			poll_iocb_unlock_wq(req);
 	}
 	if (mask) { /* no async, we'd stolen it */
 		aiocb->ki_res.res = mangle_poll(mask);
diff --git a/include/uapi/asm-generic/poll.h b/include/uapi/asm-generic/poll.h
index 41b509f410bf9..f9c520ce4bf4e 100644
--- a/include/uapi/asm-generic/poll.h
+++ b/include/uapi/asm-generic/poll.h
@@ -29,7 +29,7 @@
 #define POLLRDHUP       0x2000
 #endif
 
-#define POLLFREE	(__force __poll_t)0x4000	/* currently only for epoll */
+#define POLLFREE	(__force __poll_t)0x4000
 
 #define POLL_BUSY_LOOP	(__force __poll_t)0x8000
 
-- 
GitLab


From 2ba0738f71170a1c689fcf433497bfd047e7d605 Mon Sep 17 00:00:00 2001
From: Louis Amas <louis.amas@eho.link>
Date: Tue, 7 Dec 2021 15:34:22 +0100
Subject: [PATCH 2162/4878] net: mvpp2: fix XDP rx queues registering

commit a50e659b2a1be14784e80f8492aab177e67c53a2 upstream.

The registration of XDP queue information is incorrect because the
RX queue id we use is invalid. When port->id == 0 it appears to works
as expected yet it's no longer the case when port->id != 0.

The problem arised while using a recent kernel version on the
MACCHIATOBin. This board has several ports:
 * eth0 and eth1 are 10Gbps interfaces ; both ports has port->id == 0;
 * eth2 is a 1Gbps interface with port->id != 0.

Code from xdp-tutorial (more specifically advanced03-AF_XDP) was used
to test packet capture and injection on all these interfaces. The XDP
kernel was simplified to:

	SEC("xdp_sock")
	int xdp_sock_prog(struct xdp_md *ctx)
	{
		int index = ctx->rx_queue_index;

		/* A set entry here means that the correspnding queue_id
		* has an active AF_XDP socket bound to it. */
		if (bpf_map_lookup_elem(&xsks_map, &index))
			return bpf_redirect_map(&xsks_map, index, 0);

		return XDP_PASS;
	}

Starting the program using:

	./af_xdp_user -d DEV

Gives the following result:

 * eth0 : ok
 * eth1 : ok
 * eth2 : no capture, no injection

Investigating the issue shows that XDP rx queues for eth2 are wrong:
XDP expects their id to be in the range [0..3] but we found them to be
in the range [32..35].

Trying to force rx queue ids using:

	./af_xdp_user -d eth2 -Q 32

fails as expected (we shall not have more than 4 queues).

When we register the XDP rx queue information (using
xdp_rxq_info_reg() in function mvpp2_rxq_init()) we tell it to use
rxq->id as the queue id. This value is computed as:

	rxq->id = port->id * max_rxq_count + queue_id

where max_rxq_count depends on the device version. In the MACCHIATOBin
case, this value is 32, meaning that rx queues on eth2 are numbered
from 32 to 35 - there are four of them.

Clearly, this is not the per-port queue id that XDP is expecting:
it wants a value in the range [0..3]. It shall directly use queue_id
which is stored in rxq->logic_rxq -- so let's use that value instead.

rxq->id is left untouched ; its value is indeed valid but it should
not be used in this context.

This is consistent with the remaining part of the code in
mvpp2_rxq_init().

With this change, packet capture is working as expected on all the
MACCHIATOBin ports.

Fixes: b27db2274ba8 ("mvpp2: use page_pool allocator")
Signed-off-by: Louis Amas <louis.amas@eho.link>
Signed-off-by: Emmanuel Deloget <emmanuel.deloget@eho.link>
Reviewed-by: Marcin Wojtas <mw@semihalf.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Link: https://lore.kernel.org/r/20211207143423.916334-1-louis.amas@eho.link
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index f39841b0a248c..542cd6f2c9bd4 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -2607,11 +2607,11 @@ static int mvpp2_rxq_init(struct mvpp2_port *port,
 	mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
 
 	if (priv->percpu_pools) {
-		err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->id);
+		err = xdp_rxq_info_reg(&rxq->xdp_rxq_short, port->dev, rxq->logic_rxq);
 		if (err < 0)
 			goto err_free_dma;
 
-		err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->id);
+		err = xdp_rxq_info_reg(&rxq->xdp_rxq_long, port->dev, rxq->logic_rxq);
 		if (err < 0)
 			goto err_unregister_rxq_short;
 
-- 
GitLab


From 5f1f94c26b0d0abb9931d7b0864719078585b28a Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Date: Tue, 7 Dec 2021 17:17:29 -0500
Subject: [PATCH 2163/4878] tracefs: Set all files to the same group ownership
 as the mount option

commit 48b27b6b5191e2e1f2798cd80877b6e4ef47c351 upstream.

As people have been asking to allow non-root processes to have access to
the tracefs directory, it was considered best to only allow groups to have
access to the directory, where it is easier to just set the tracefs file
system to a specific group (as other would be too dangerous), and that way
the admins could pick which processes would have access to tracefs.

Unfortunately, this broke tooling on Android that expected the other bit
to be set. For some special cases, for non-root tools to trace the system,
tracefs would be mounted and change the permissions of the top level
directory which gave access to all running tasks permission to the
tracing directory. Even though this would be dangerous to do in a
production environment, for testing environments this can be useful.

Now with the new changes to not allow other (which is still the proper
thing to do), it breaks the testing tooling. Now more code needs to be
loaded on the system to change ownership of the tracing directory.

The real solution is to have tracefs honor the gid=xxx option when
mounting. That is,

(tracing group tracing has value 1003)

 mount -t tracefs -o gid=1003 tracefs /sys/kernel/tracing

should have it that all files in the tracing directory should be of the
given group.

Copy the logic from d_walk() from dcache.c and simplify it for the mount
case of tracefs if gid is set. All the files in tracefs will be walked and
their group will be set to the value passed in.

Link: https://lkml.kernel.org/r/20211207171729.2a54e1b3@gandalf.local.home

Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Kalesh Singh <kaleshsingh@google.com>
Reported-by: Yabin Cui <yabinc@google.com>
Fixes: 49d67e445742 ("tracefs: Have tracefs directories not set OTH permission bits by default")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/tracefs/inode.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 3d7bb4c8c2618..ade05887070dd 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -159,6 +159,77 @@ struct tracefs_fs_info {
 	struct tracefs_mount_opts mount_opts;
 };
 
+static void change_gid(struct dentry *dentry, kgid_t gid)
+{
+	if (!dentry->d_inode)
+		return;
+	dentry->d_inode->i_gid = gid;
+}
+
+/*
+ * Taken from d_walk, but without he need for handling renames.
+ * Nothing can be renamed while walking the list, as tracefs
+ * does not support renames. This is only called when mounting
+ * or remounting the file system, to set all the files to
+ * the given gid.
+ */
+static void set_gid(struct dentry *parent, kgid_t gid)
+{
+	struct dentry *this_parent;
+	struct list_head *next;
+
+	this_parent = parent;
+	spin_lock(&this_parent->d_lock);
+
+	change_gid(this_parent, gid);
+repeat:
+	next = this_parent->d_subdirs.next;
+resume:
+	while (next != &this_parent->d_subdirs) {
+		struct list_head *tmp = next;
+		struct dentry *dentry = list_entry(tmp, struct dentry, d_child);
+		next = tmp->next;
+
+		spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
+
+		change_gid(dentry, gid);
+
+		if (!list_empty(&dentry->d_subdirs)) {
+			spin_unlock(&this_parent->d_lock);
+			spin_release(&dentry->d_lock.dep_map, _RET_IP_);
+			this_parent = dentry;
+			spin_acquire(&this_parent->d_lock.dep_map, 0, 1, _RET_IP_);
+			goto repeat;
+		}
+		spin_unlock(&dentry->d_lock);
+	}
+	/*
+	 * All done at this level ... ascend and resume the search.
+	 */
+	rcu_read_lock();
+ascend:
+	if (this_parent != parent) {
+		struct dentry *child = this_parent;
+		this_parent = child->d_parent;
+
+		spin_unlock(&child->d_lock);
+		spin_lock(&this_parent->d_lock);
+
+		/* go into the first sibling still alive */
+		do {
+			next = child->d_child.next;
+			if (next == &this_parent->d_subdirs)
+				goto ascend;
+			child = list_entry(next, struct dentry, d_child);
+		} while (unlikely(child->d_flags & DCACHE_DENTRY_KILLED));
+		rcu_read_unlock();
+		goto resume;
+	}
+	rcu_read_unlock();
+	spin_unlock(&this_parent->d_lock);
+	return;
+}
+
 static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
 {
 	substring_t args[MAX_OPT_ARGS];
@@ -191,6 +262,7 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
 			if (!gid_valid(gid))
 				return -EINVAL;
 			opts->gid = gid;
+			set_gid(tracefs_mount->mnt_root, gid);
 			break;
 		case Opt_mode:
 			if (match_octal(&args[0], &option))
-- 
GitLab


From 5dfe61147442cb9eedeb282630abf304144bc71c Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <dave@stgolabs.net>
Date: Fri, 10 Dec 2021 10:20:58 -0800
Subject: [PATCH 2164/4878] block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)

commit e6a59aac8a8713f335a37d762db0dbe80e7f6d38 upstream.

do_each_pid_thread(PIDTYPE_PGID) can race with a concurrent
change_pid(PIDTYPE_PGID) that can move the task from one hlist
to another while iterating. Serialize ioprio_get to take
the tasklist_lock in this case, just like it's set counterpart.

Fixes: d69b78ba1de (ioprio: grab rcu_read_lock in sys_ioprio_{set,get}())
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Link: https://lore.kernel.org/r/20211210182058.43417-1-dave@stgolabs.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/ioprio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/ioprio.c b/block/ioprio.c
index 84da6c71b2ccb..c8878647de400 100644
--- a/block/ioprio.c
+++ b/block/ioprio.c
@@ -214,6 +214,7 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who)
 				pgrp = task_pgrp(current);
 			else
 				pgrp = find_vpid(who);
+			read_lock(&tasklist_lock);
 			do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
 				tmpio = get_task_ioprio(p);
 				if (tmpio < 0)
@@ -223,6 +224,8 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who)
 				else
 					ret = ioprio_best(ret, tmpio);
 			} while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
+			read_unlock(&tasklist_lock);
+
 			break;
 		case IOPRIO_WHO_USER:
 			uid = make_kuid(current_user_ns(), who);
-- 
GitLab


From 1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add Mon Sep 17 00:00:00 2001
From: Igor Pylypiv <ipylypiv@google.com>
Date: Tue, 30 Nov 2021 20:16:27 -0800
Subject: [PATCH 2165/4878] scsi: pm80xx: Do not call scsi_remove_host() in
 pm8001_alloc()

commit 653926205741add87a6cf452e21950eebc6ac10b upstream.

Calling scsi_remove_host() before scsi_add_host() results in a crash:

 BUG: kernel NULL pointer dereference, address: 0000000000000108
 RIP: 0010:device_del+0x63/0x440
 Call Trace:
  device_unregister+0x17/0x60
  scsi_remove_host+0xee/0x2a0
  pm8001_pci_probe+0x6ef/0x1b90 [pm80xx]
  local_pci_probe+0x3f/0x90

We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host()
has not been called yet at that point in time.

Function call tree:

  pm8001_pci_probe()
  |
  `- pm8001_pci_alloc()
  |  |
  |  `- pm8001_alloc()
  |     |
  |     `- scsi_remove_host()
  |
  `- scsi_add_host()

Link: https://lore.kernel.org/r/20211201041627.1592487-1-ipylypiv@google.com
Fixes: 05c6c029a44d ("scsi: pm80xx: Increase number of supported queues")
Reviewed-by: Vishakha Channapattan <vishakhavc@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/pm8001/pm8001_init.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 13b8ddec61894..01eb2ade20709 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -280,12 +280,12 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
 	if (rc) {
 		pm8001_dbg(pm8001_ha, FAIL,
 			   "pm8001_setup_irq failed [ret: %d]\n", rc);
-		goto err_out_shost;
+		goto err_out;
 	}
 	/* Request Interrupt */
 	rc = pm8001_request_irq(pm8001_ha);
 	if (rc)
-		goto err_out_shost;
+		goto err_out;
 
 	count = pm8001_ha->max_q_num;
 	/* Queues are chosen based on the number of cores/msix availability */
@@ -419,8 +419,6 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
 	pm8001_tag_init(pm8001_ha);
 	return 0;
 
-err_out_shost:
-	scsi_remove_host(pm8001_ha->shost);
 err_out_nodev:
 	for (i = 0; i < pm8001_ha->max_memcnt; i++) {
 		if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
-- 
GitLab


From c4d2d7c935a4ad20e8e726ca10499cefe4537103 Mon Sep 17 00:00:00 2001
From: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Date: Tue, 7 Dec 2021 10:06:38 +0900
Subject: [PATCH 2166/4878] scsi: scsi_debug: Fix buffer size of REPORT ZONES
 command

commit 7db0e0c8190a086ef92ce5bb960836cde49540aa upstream.

According to ZBC and SPC specifications, the unit of ALLOCATION LENGTH
field of REPORT ZONES command is byte. However, current scsi_debug
implementation handles it as number of zones to calculate buffer size to
report zones. When the ALLOCATION LENGTH has a large number, this results
in too large buffer size and causes memory allocation failure.  Fix the
failure by handling ALLOCATION LENGTH as byte unit.

Link: https://lore.kernel.org/r/20211207010638.124280-1-shinichiro.kawasaki@wdc.com
Fixes: f0d1cf9378bd ("scsi: scsi_debug: Add ZBC zone commands")
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi_debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 1a3f5adc68849..9188191433439 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4313,7 +4313,7 @@ static int resp_report_zones(struct scsi_cmnd *scp,
 	rep_max_zones = min((alloc_len - 64) >> ilog2(RZONES_DESC_HD),
 			    max_zones);
 
-	arr = kcalloc(RZONES_DESC_HD, alloc_len, GFP_ATOMIC);
+	arr = kzalloc(alloc_len, GFP_ATOMIC);
 	if (!arr) {
 		mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC,
 				INSUFF_RES_ASCQ);
-- 
GitLab


From 661c4412c5637854e8886806fd89884737d33202 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manishc@marvell.com>
Date: Fri, 3 Dec 2021 09:44:13 -0800
Subject: [PATCH 2167/4878] qede: validate non LSO skb length

commit 8e227b198a55859bf790dc7f4b1e30c0859c6756 upstream.

Although it is unlikely that stack could transmit a non LSO
skb with length > MTU, however in some cases or environment such
occurrences actually resulted into firmware asserts due to packet
length being greater than the max supported by the device (~9700B).

This patch adds the safeguard for such odd cases to avoid firmware
asserts.

v2: Added "Fixes" tag with one of the initial driver commit
    which enabled the TX traffic actually (as this was probably
    day1 issue which was discovered recently by some customer
    environment)

Fixes: a2ec6172d29c ("qede: Add support for link")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Link: https://lore.kernel.org/r/20211203174413.13090-1-manishc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qede/qede_fp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index ca0ee29a57b50..21c906200e791 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -1659,6 +1659,13 @@ netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 			data_split = true;
 		}
 	} else {
+		if (unlikely(skb->len > ETH_TX_MAX_NON_LSO_PKT_LEN)) {
+			DP_ERR(edev, "Unexpected non LSO skb length = 0x%x\n", skb->len);
+			qede_free_failed_tx_pkt(txq, first_bd, 0, false);
+			qede_update_tx_producer(txq);
+			return NETDEV_TX_OK;
+		}
+
 		val |= ((skb->len & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK) <<
 			 ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT);
 	}
-- 
GitLab


From bdd8129c66052991f0b5939975e674d669b06a01 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 3 Dec 2021 17:19:47 +0100
Subject: [PATCH 2168/4878] PM: runtime: Fix pm_runtime_active() kerneldoc
 comment

commit 444dd878e85fb33fcfb2682cfdab4c236f33ea3e upstream.

The kerneldoc comment of pm_runtime_active() does not reflect the
behavior of the function, so update it accordingly.

Fixes: 403d2d116ec0 ("PM: runtime: Add kerneldoc comments to multiple helpers")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/pm_runtime.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 6c08a085367bf..161acd4ede448 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -127,7 +127,7 @@ static inline bool pm_runtime_suspended(struct device *dev)
  * pm_runtime_active - Check whether or not a device is runtime-active.
  * @dev: Target device.
  *
- * Return %true if runtime PM is enabled for @dev and its runtime PM status is
+ * Return %true if runtime PM is disabled for @dev or its runtime PM status is
  * %RPM_ACTIVE, or %false otherwise.
  *
  * Note that the return value of this function can only be trusted if it is
-- 
GitLab


From 2f4764fe36925adc708a867a6e612c08fe54ea8b Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@chromium.org>
Date: Wed, 17 Nov 2021 17:04:52 -0800
Subject: [PATCH 2169/4878] ASoC: rt5682: Fix crash due to out of scope stack
 vars

commit 4999d703c0e66f9f196b6edc0b8fdeca8846b8b6 upstream.

Move the declaration of temporary arrays to somewhere that won't go out
of scope before the devm_clk_hw_register() call, lest we be at the whim
of the compiler for whether those stack variables get overwritten.

Fixes a crash seen with gcc version 11.2.1 20210728 (Red Hat 11.2.1-1)

Fixes: edbd24ea1e5c ("ASoC: rt5682: Drop usage of __clk_get_name()")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211118010453.843286-1-robdclark@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/rt5682.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index 0486b14697994..41827cdf26a39 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -2797,6 +2797,8 @@ static int rt5682_register_dai_clks(struct snd_soc_component *component)
 
 	for (i = 0; i < RT5682_DAI_NUM_CLKS; ++i) {
 		struct clk_init_data init = { };
+		struct clk_parent_data parent_data;
+		const struct clk_hw *parent;
 
 		dai_clk_hw = &rt5682->dai_clks_hw[i];
 
@@ -2804,17 +2806,17 @@ static int rt5682_register_dai_clks(struct snd_soc_component *component)
 		case RT5682_DAI_WCLK_IDX:
 			/* Make MCLK the parent of WCLK */
 			if (rt5682->mclk) {
-				init.parent_data = &(struct clk_parent_data){
+				parent_data = (struct clk_parent_data){
 					.fw_name = "mclk",
 				};
+				init.parent_data = &parent_data;
 				init.num_parents = 1;
 			}
 			break;
 		case RT5682_DAI_BCLK_IDX:
 			/* Make WCLK the parent of BCLK */
-			init.parent_hws = &(const struct clk_hw *){
-				&rt5682->dai_clks_hw[RT5682_DAI_WCLK_IDX]
-			};
+			parent = &rt5682->dai_clks_hw[RT5682_DAI_WCLK_IDX];
+			init.parent_hws = &parent;
 			init.num_parents = 1;
 			break;
 		default:
-- 
GitLab


From 62e4dc5e130eab3ef556a33bc2fa888aa44710e0 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 30 Nov 2021 16:31:10 +0000
Subject: [PATCH 2170/4878] ASoC: qdsp6: q6routing: Fix return value from
 msm_routing_put_audio_mixer

commit 4739d88ad8e1900f809f8a5c98f3c1b65bf76220 upstream.

msm_routing_put_audio_mixer() can return incorrect value in various scenarios.

scenario 1:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0

return value is 0 instead of 1 eventhough value was changed

scenario 2:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 1

return value is 1 instead of 0 eventhough the value was not changed

scenario 3:
amixer cset iface=MIXER,name='SLIMBUS_0_RX Audio Mixer MultiMedia1' 0
return value is 1 instead of 0 eventhough the value was not changed

Fix this by adding checks, so that change notifications are sent correctly.

Fixes: e3a33673e845 ("ASoC: qdsp6: q6routing: Add q6routing driver")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130163110.5628-1-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/qcom/qdsp6/q6routing.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c
index 934b3f282bccd..2026fa5902927 100644
--- a/sound/soc/qcom/qdsp6/q6routing.c
+++ b/sound/soc/qcom/qdsp6/q6routing.c
@@ -488,14 +488,16 @@ static int msm_routing_put_audio_mixer(struct snd_kcontrol *kcontrol,
 	struct session_data *session = &data->sessions[session_id];
 
 	if (ucontrol->value.integer.value[0]) {
+		if (session->port_id == be_id)
+			return 0;
+
 		session->port_id = be_id;
 		snd_soc_dapm_mixer_update_power(dapm, kcontrol, 1, update);
 	} else {
-		if (session->port_id == be_id) {
-			session->port_id = -1;
+		if (session->port_id == -1 || session->port_id != be_id)
 			return 0;
-		}
 
+		session->port_id = -1;
 		snd_soc_dapm_mixer_update_power(dapm, kcontrol, 0, update);
 	}
 
-- 
GitLab


From 83dae68fc00ac9ca52786729d088c2f1f0aa7065 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 30 Nov 2021 16:05:07 +0000
Subject: [PATCH 2171/4878] ASoC: codecs: wsa881x: fix return values from
 kcontrol put

commit 3fc27e9a1f619b50700f020e6cd270c1b74755f0 upstream.

wsa881x_set_port() and wsa881x_put_pa_gain() currently returns zero eventhough
it changes the value. Fix this, so that change notifications are sent
correctly.

Fixes: a0aab9e1404a ("ASoC: codecs: add wsa881x amplifier support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130160507.22180-5-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/wsa881x.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
index db87e07b11c94..601525c77bbaf 100644
--- a/sound/soc/codecs/wsa881x.c
+++ b/sound/soc/codecs/wsa881x.c
@@ -772,7 +772,8 @@ static int wsa881x_put_pa_gain(struct snd_kcontrol *kc,
 
 		usleep_range(1000, 1010);
 	}
-	return 0;
+
+	return 1;
 }
 
 static int wsa881x_get_port(struct snd_kcontrol *kcontrol,
@@ -816,15 +817,22 @@ static int wsa881x_set_port(struct snd_kcontrol *kcontrol,
 		(struct soc_mixer_control *)kcontrol->private_value;
 	int portidx = mixer->reg;
 
-	if (ucontrol->value.integer.value[0])
+	if (ucontrol->value.integer.value[0]) {
+		if (data->port_enable[portidx])
+			return 0;
+
 		data->port_enable[portidx] = true;
-	else
+	} else {
+		if (!data->port_enable[portidx])
+			return 0;
+
 		data->port_enable[portidx] = false;
+	}
 
 	if (portidx == WSA881X_PORT_BOOST) /* Boost Switch */
 		wsa881x_boost_ctrl(comp, data->port_enable[portidx]);
 
-	return 0;
+	return 1;
 }
 
 static const char * const smart_boost_lvl_text[] = {
-- 
GitLab


From 1089dac26c6b4b833323ae6c0ceab29fb30ede72 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 30 Nov 2021 16:05:04 +0000
Subject: [PATCH 2172/4878] ASoC: codecs: wcd934x: handle channel mappping list
 correctly

commit 23ba28616d3063bd4c4953598ed5e439ca891101 upstream.

Currently each channel is added as list to dai channel list, however
there is danger of adding same channel to multiple dai channel list
which endups corrupting the other list where its already added.

This patch ensures that the channel is actually free before adding to
the dai channel list and also ensures that the channel is on the list
before deleting it.

This check was missing previously, and we did not hit this issue as
we were testing very simple usecases with sequence of amixer commands.

Fixes: a70d9245759a ("ASoC: wcd934x: add capture dapm widgets")
Fixes: dd9eb19b5673 ("ASoC: wcd934x: add playback dapm widgets")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130160507.22180-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/wcd934x.c | 119 +++++++++++++++++++++++++++----------
 1 file changed, 88 insertions(+), 31 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 699b59cd389c0..27d2b4895fc21 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -2540,6 +2540,31 @@ static int slim_rx_mux_get(struct snd_kcontrol *kc,
 	return 0;
 }
 
+static int slim_rx_mux_to_dai_id(int mux)
+{
+	int aif_id;
+
+	switch (mux) {
+	case 1:
+		aif_id = AIF1_PB;
+		break;
+	case 2:
+		aif_id = AIF2_PB;
+		break;
+	case 3:
+		aif_id = AIF3_PB;
+		break;
+	case 4:
+		aif_id = AIF4_PB;
+		break;
+	default:
+		aif_id = -1;
+		break;
+	}
+
+	return aif_id;
+}
+
 static int slim_rx_mux_put(struct snd_kcontrol *kc,
 			   struct snd_ctl_elem_value *ucontrol)
 {
@@ -2547,43 +2572,59 @@ static int slim_rx_mux_put(struct snd_kcontrol *kc,
 	struct wcd934x_codec *wcd = dev_get_drvdata(w->dapm->dev);
 	struct soc_enum *e = (struct soc_enum *)kc->private_value;
 	struct snd_soc_dapm_update *update = NULL;
+	struct wcd934x_slim_ch *ch, *c;
 	u32 port_id = w->shift;
+	bool found = false;
+	int mux_idx;
+	int prev_mux_idx = wcd->rx_port_value[port_id];
+	int aif_id;
 
-	if (wcd->rx_port_value[port_id] == ucontrol->value.enumerated.item[0])
-		return 0;
+	mux_idx = ucontrol->value.enumerated.item[0];
 
-	wcd->rx_port_value[port_id] = ucontrol->value.enumerated.item[0];
+	if (mux_idx == prev_mux_idx)
+		return 0;
 
-	switch (wcd->rx_port_value[port_id]) {
+	switch(mux_idx) {
 	case 0:
-		list_del_init(&wcd->rx_chs[port_id].list);
-		break;
-	case 1:
-		list_add_tail(&wcd->rx_chs[port_id].list,
-			      &wcd->dai[AIF1_PB].slim_ch_list);
-		break;
-	case 2:
-		list_add_tail(&wcd->rx_chs[port_id].list,
-			      &wcd->dai[AIF2_PB].slim_ch_list);
-		break;
-	case 3:
-		list_add_tail(&wcd->rx_chs[port_id].list,
-			      &wcd->dai[AIF3_PB].slim_ch_list);
+		aif_id = slim_rx_mux_to_dai_id(prev_mux_idx);
+		if (aif_id < 0)
+			return 0;
+
+		list_for_each_entry_safe(ch, c, &wcd->dai[aif_id].slim_ch_list, list) {
+			if (ch->port == port_id + WCD934X_RX_START) {
+				found = true;
+				list_del_init(&ch->list);
+				break;
+			}
+		}
+		if (!found)
+			return 0;
+
 		break;
-	case 4:
-		list_add_tail(&wcd->rx_chs[port_id].list,
-			      &wcd->dai[AIF4_PB].slim_ch_list);
+	case 1 ... 4:
+		aif_id = slim_rx_mux_to_dai_id(mux_idx);
+		if (aif_id < 0)
+			return 0;
+
+		if (list_empty(&wcd->rx_chs[port_id].list)) {
+			list_add_tail(&wcd->rx_chs[port_id].list,
+				      &wcd->dai[aif_id].slim_ch_list);
+		} else {
+			dev_err(wcd->dev ,"SLIM_RX%d PORT is busy\n", port_id);
+			return 0;
+		}
 		break;
+
 	default:
-		dev_err(wcd->dev, "Unknown AIF %d\n",
-			wcd->rx_port_value[port_id]);
+		dev_err(wcd->dev, "Unknown AIF %d\n", mux_idx);
 		goto err;
 	}
 
+	wcd->rx_port_value[port_id] = mux_idx;
 	snd_soc_dapm_mux_update_power(w->dapm, kc, wcd->rx_port_value[port_id],
 				      e, update);
 
-	return 0;
+	return 1;
 err:
 	return -EINVAL;
 }
@@ -3029,6 +3070,7 @@ static int slim_tx_mixer_put(struct snd_kcontrol *kc,
 	struct soc_mixer_control *mixer =
 			(struct soc_mixer_control *)kc->private_value;
 	int enable = ucontrol->value.integer.value[0];
+	struct wcd934x_slim_ch *ch, *c;
 	int dai_id = widget->shift;
 	int port_id = mixer->shift;
 
@@ -3036,17 +3078,32 @@ static int slim_tx_mixer_put(struct snd_kcontrol *kc,
 	if (enable == wcd->tx_port_value[port_id])
 		return 0;
 
-	wcd->tx_port_value[port_id] = enable;
-
-	if (enable)
-		list_add_tail(&wcd->tx_chs[port_id].list,
-			      &wcd->dai[dai_id].slim_ch_list);
-	else
-		list_del_init(&wcd->tx_chs[port_id].list);
+	if (enable) {
+		if (list_empty(&wcd->tx_chs[port_id].list)) {
+			list_add_tail(&wcd->tx_chs[port_id].list,
+				      &wcd->dai[dai_id].slim_ch_list);
+		} else {
+			dev_err(wcd->dev ,"SLIM_TX%d PORT is busy\n", port_id);
+			return 0;
+		}
+	 } else {
+		bool found = false;
+
+		list_for_each_entry_safe(ch, c, &wcd->dai[dai_id].slim_ch_list, list) {
+			if (ch->port == port_id) {
+				found = true;
+				list_del_init(&wcd->tx_chs[port_id].list);
+				break;
+			}
+		}
+		if (!found)
+			return 0;
+	 }
 
+	wcd->tx_port_value[port_id] = enable;
 	snd_soc_dapm_mixer_update_power(widget->dapm, kc, enable, update);
 
-	return 0;
+	return 1;
 }
 
 static const struct snd_kcontrol_new aif1_slim_cap_mixer[] = {
-- 
GitLab


From 4458938b297ee88732cbf639c88bb81fa1f05463 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 30 Nov 2021 16:05:06 +0000
Subject: [PATCH 2173/4878] ASoC: codecs: wcd934x: return correct value from
 mixer put

commit d9be0ff4796d1b6f5ee391c1b7e3653a43cedfab upstream.

wcd934x_compander_set() currently returns zero eventhough it changes the value.
Fix this, so that change notifications are sent correctly.

Fixes: 1cde8b822332 ("ASoC: wcd934x: add basic controls")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130160507.22180-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/wcd934x.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wcd934x.c b/sound/soc/codecs/wcd934x.c
index 27d2b4895fc21..01df3f4e045a9 100644
--- a/sound/soc/codecs/wcd934x.c
+++ b/sound/soc/codecs/wcd934x.c
@@ -2470,6 +2470,9 @@ static int wcd934x_compander_set(struct snd_kcontrol *kc,
 	int value = ucontrol->value.integer.value[0];
 	int sel;
 
+	if (wcd->comp_enabled[comp] == value)
+		return 0;
+
 	wcd->comp_enabled[comp] = value;
 	sel = value ? WCD934X_HPH_GAIN_SRC_SEL_COMPANDER :
 		WCD934X_HPH_GAIN_SRC_SEL_REGISTER;
@@ -2493,10 +2496,10 @@ static int wcd934x_compander_set(struct snd_kcontrol *kc,
 	case COMPANDER_8:
 		break;
 	default:
-		break;
+		return 0;
 	}
 
-	return 0;
+	return 1;
 }
 
 static int wcd934x_rx_hph_mode_get(struct snd_kcontrol *kc,
-- 
GitLab


From 33f320c35d69374d62b8a3b8f594f4da3aae91b5 Mon Sep 17 00:00:00 2001
From: Yangyang Li <liyangyang20@huawei.com>
Date: Tue, 23 Nov 2021 16:48:09 +0800
Subject: [PATCH 2174/4878] RDMA/hns: Do not halt commands during reset until
 later

commit 52414e27d6b568120b087d1fbafbb4482b0ccaab upstream.

is_reset is used to indicate whether the hardware starts to reset. When
hns_roce_hw_v2_reset_notify_down() is called, the hardware has not yet
started to reset. If is_reset is set at this time, all mailbox operations
of resource destroy actions will be intercepted by driver. When the driver
cleans up resources, but the hardware is still accessed, the following
errors will appear:

  arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received:
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000350100000010
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x000002088000003f
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x00000000a50e0800
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000000000000000
  arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received:
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000350100000010
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x000002088000043e
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x00000000a50a0800
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000000000000000
  arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received:
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000350100000010
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000020880000436
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x00000000a50a0880
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000000000000000
  arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received:
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000350100000010
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x000002088000043a
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x00000000a50e0840
  hns3 0000:35:00.0: INT status: CMDQ(0x0) HW errors(0x0) other(0x0)
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000000000000000
  hns3 0000:35:00.0: received unknown or unhandled event of vector0
  arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received:
  arm-smmu-v3 arm-smmu-v3.2.auto: 	0x0000350100000010
  {34}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 7

is_reset will be set correctly in check_aedev_reset_status(), so the
setting in hns_roce_hw_v2_reset_notify_down() should be deleted.

Fixes: 726be12f5ca0 ("RDMA/hns: Set reset flag when hw resetting")
Link: https://lore.kernel.org/r/20211123084809.37318-1-liangwenpeng@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index c29ba8ee51e29..5421e524832cb 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -6342,10 +6342,8 @@ static int hns_roce_hw_v2_reset_notify_down(struct hnae3_handle *handle)
 	if (!hr_dev)
 		return 0;
 
-	hr_dev->is_reset = true;
 	hr_dev->active = false;
 	hr_dev->dis_db = true;
-
 	hr_dev->state = HNS_ROCE_DEVICE_STATE_RST_DOWN;
 
 	return 0;
-- 
GitLab


From 4d12546cf9e7a18bfff0dc1362306185097a68fe Mon Sep 17 00:00:00 2001
From: Yangyang Li <liyangyang20@huawei.com>
Date: Tue, 23 Nov 2021 22:24:02 +0800
Subject: [PATCH 2175/4878] RDMA/hns: Do not destroy QP resources in the hw
 resetting phase

commit b0969f83890bf8b47f5c8bd42539599b2b52fdeb upstream.

When hns_roce_v2_destroy_qp() is called, the brief calling process of the
driver is as follows:

 ......
 hns_roce_v2_destroy_qp
 hns_roce_v2_qp_modify
	   hns_roce_cmd_mbox
 hns_roce_qp_destroy

If hns_roce_cmd_mbox() detects that the hardware is being reset during the
execution of the hns_roce_cmd_mbox(), the driver will not be able to get
the return value from the hardware (the firmware cannot respond to the
driver's mailbox during the hardware reset phase).

The driver needs to wait for the hardware reset to complete before
continuing to execute hns_roce_qp_destroy(), otherwise it may happen that
the driver releases the resources but the hardware is still accessing. In
order to fix this problem, HNS RoCE needs to add a piece of code to wait
for the hardware reset to complete.

The original interface get_hw_reset_stat() is the instantaneous state of
the hardware reset, which cannot accurately reflect whether the hardware
reset is completed, so it needs to be replaced with the ae_dev_reset_cnt
interface.

The sign that the hardware reset is complete is that the return value of
the ae_dev_reset_cnt interface is greater than the original value
reset_cnt recorded by the driver.

Fixes: 6a04aed6afae ("RDMA/hns: Fix the chip hanging caused by sending mailbox&CMQ during reset")
Link: https://lore.kernel.org/r/20211123142402.26936-1-liangwenpeng@huawei.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 5421e524832cb..abe882ec1bae7 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -33,6 +33,7 @@
 #include <linux/acpi.h>
 #include <linux/etherdevice.h>
 #include <linux/interrupt.h>
+#include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <net/addrconf.h>
@@ -964,9 +965,14 @@ static int hns_roce_v2_cmd_hw_resetting(struct hns_roce_dev *hr_dev,
 					unsigned long instance_stage,
 					unsigned long reset_stage)
 {
+#define HW_RESET_TIMEOUT_US 1000000
+#define HW_RESET_SLEEP_US 1000
+
 	struct hns_roce_v2_priv *priv = hr_dev->priv;
 	struct hnae3_handle *handle = priv->handle;
 	const struct hnae3_ae_ops *ops = handle->ae_algo->ops;
+	unsigned long val;
+	int ret;
 
 	/* When hardware reset is detected, we should stop sending mailbox&cmq&
 	 * doorbell to hardware. If now in .init_instance() function, we should
@@ -978,7 +984,11 @@ static int hns_roce_v2_cmd_hw_resetting(struct hns_roce_dev *hr_dev,
 	 * again.
 	 */
 	hr_dev->dis_db = true;
-	if (!ops->get_hw_reset_stat(handle))
+
+	ret = read_poll_timeout(ops->ae_dev_reset_cnt, val,
+				val > hr_dev->reset_cnt, HW_RESET_SLEEP_US,
+				HW_RESET_TIMEOUT_US, false, handle);
+	if (!ret)
 		hr_dev->is_reset = true;
 
 	if (!hr_dev->is_reset || reset_stage == HNS_ROCE_STATE_RST_INIT ||
-- 
GitLab


From 82ed3829c9377d15a26bdf48f73e822f6afcf70a Mon Sep 17 00:00:00 2001
From: Miles Chen <miles.chen@mediatek.com>
Date: Sun, 5 Sep 2021 07:54:18 +0800
Subject: [PATCH 2176/4878] clk: imx: use module_platform_driver

commit eee377b8f44e7ac4f76bbf2440e5cbbc1d25c25f upstream.

Replace builtin_platform_driver_probe with module_platform_driver_probe
because CONFIG_CLK_IMX8QXP can be set to =m (kernel module).

Fixes: e0d0d4d86c766 ("clk: imx8qxp: Support building i.MX8QXP clock driver as module")
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210904235418.2442-1-miles.chen@mediatek.com
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/clk/imx/clk-imx8qxp-lpcg.c | 2 +-
 drivers/clk/imx/clk-imx8qxp.c      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/imx/clk-imx8qxp-lpcg.c b/drivers/clk/imx/clk-imx8qxp-lpcg.c
index e947a70054acd..522c03a12b693 100644
--- a/drivers/clk/imx/clk-imx8qxp-lpcg.c
+++ b/drivers/clk/imx/clk-imx8qxp-lpcg.c
@@ -231,7 +231,7 @@ static struct platform_driver imx8qxp_lpcg_clk_driver = {
 	.probe = imx8qxp_lpcg_clk_probe,
 };
 
-builtin_platform_driver(imx8qxp_lpcg_clk_driver);
+module_platform_driver(imx8qxp_lpcg_clk_driver);
 
 MODULE_AUTHOR("Aisheng Dong <aisheng.dong@nxp.com>");
 MODULE_DESCRIPTION("NXP i.MX8QXP LPCG clock driver");
diff --git a/drivers/clk/imx/clk-imx8qxp.c b/drivers/clk/imx/clk-imx8qxp.c
index d650ca33cdc80..8c14e0bbe1a24 100644
--- a/drivers/clk/imx/clk-imx8qxp.c
+++ b/drivers/clk/imx/clk-imx8qxp.c
@@ -151,7 +151,7 @@ static struct platform_driver imx8qxp_clk_driver = {
 	},
 	.probe = imx8qxp_clk_probe,
 };
-builtin_platform_driver(imx8qxp_clk_driver);
+module_platform_driver(imx8qxp_clk_driver);
 
 MODULE_AUTHOR("Aisheng Dong <aisheng.dong@nxp.com>");
 MODULE_DESCRIPTION("NXP i.MX8QXP clock driver");
-- 
GitLab


From eb87117c27e729b0aeef4d72ed40d6a1761b0f68 Mon Sep 17 00:00:00 2001
From: Karen Sornek <karen.sornek@intel.com>
Date: Fri, 14 May 2021 11:43:13 +0200
Subject: [PATCH 2177/4878] i40e: Fix failed opcode appearing if handling
 messages from VF

commit 61125b8be85dfbc7e9c7fe1cc6c6d631ab603516 upstream.

Fix failed operation code appearing if handling messages from VF.
Implemented by waiting for VF appropriate state if request starts
handle while VF reset.
Without this patch the message handling request while VF is in
a reset state ends with error -5 (I40E_ERR_PARAM).

Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 70 +++++++++++++------
 .../ethernet/intel/i40e/i40e_virtchnl_pf.h    |  2 +
 2 files changed, 50 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 41c0a103119c1..7af777a9873b9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1895,6 +1895,32 @@ static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
 	return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
 }
 
+/**
+ * i40e_sync_vf_state
+ * @vf: pointer to the VF info
+ * @state: VF state
+ *
+ * Called from a VF message to synchronize the service with a potential
+ * VF reset state
+ **/
+static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
+{
+	int i;
+
+	/* When handling some messages, it needs VF state to be set.
+	 * It is possible that this flag is cleared during VF reset,
+	 * so there is a need to wait until the end of the reset to
+	 * handle the request message correctly.
+	 */
+	for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
+		if (test_bit(state, &vf->vf_states))
+			return true;
+		usleep_range(10000, 20000);
+	}
+
+	return test_bit(state, &vf->vf_states);
+}
+
 /**
  * i40e_vc_get_version_msg
  * @vf: pointer to the VF info
@@ -1955,7 +1981,7 @@ static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
 	size_t len = 0;
 	int ret;
 
-	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -2077,7 +2103,7 @@ static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
 	bool allmulti = false;
 	bool alluni = false;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err_out;
 	}
@@ -2165,7 +2191,7 @@ static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
 	struct i40e_vsi *vsi;
 	u16 num_qps_all = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto error_param;
 	}
@@ -2314,7 +2340,7 @@ static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	int i;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto error_param;
 	}
@@ -2486,7 +2512,7 @@ static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
 	struct i40e_pf *pf = vf->pf;
 	i40e_status aq_ret = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto error_param;
 	}
@@ -2536,7 +2562,7 @@ static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
 	u8 cur_pairs = vf->num_queue_pairs;
 	struct i40e_pf *pf = vf->pf;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))
 		return -EINVAL;
 
 	if (req_pairs > I40E_MAX_VF_QUEUES) {
@@ -2581,7 +2607,7 @@ static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
 
 	memset(&stats, 0, sizeof(struct i40e_eth_stats));
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto error_param;
 	}
@@ -2698,7 +2724,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 	i40e_status ret = 0;
 	int i;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
 	    !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
 		ret = I40E_ERR_PARAM;
 		goto error_param;
@@ -2770,7 +2796,7 @@ static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 	i40e_status ret = 0;
 	int i;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
 	    !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
 		ret = I40E_ERR_PARAM;
 		goto error_param;
@@ -2914,7 +2940,7 @@ static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	int i;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
 	    !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto error_param;
@@ -3034,9 +3060,9 @@ static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
 	struct i40e_vsi *vsi = NULL;
 	i40e_status aq_ret = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
 	    !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
-	    (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
+	    vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3065,9 +3091,9 @@ static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	u16 i;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
 	    !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
-	    (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
+	    vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3100,7 +3126,7 @@ static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	int len = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3136,7 +3162,7 @@ static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
 	struct i40e_hw *hw = &pf->hw;
 	i40e_status aq_ret = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3161,7 +3187,7 @@ static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	struct i40e_vsi *vsi;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3187,7 +3213,7 @@ static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	struct i40e_vsi *vsi;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3414,7 +3440,7 @@ static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	int i, ret;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3545,7 +3571,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	int i, ret;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err_out;
 	}
@@ -3654,7 +3680,7 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
 	i40e_status aq_ret = 0;
 	u64 speed = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
@@ -3788,7 +3814,7 @@ static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
 	struct i40e_pf *pf = vf->pf;
 	i40e_status aq_ret = 0;
 
-	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
+	if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
 		aq_ret = I40E_ERR_PARAM;
 		goto err;
 	}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
index 091e32c1bb46f..49575a640a84c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
@@ -18,6 +18,8 @@
 
 #define I40E_MAX_VF_PROMISC_FLAGS	3
 
+#define I40E_VF_STATE_WAIT_COUNT	20
+
 /* Various queue ctrls */
 enum i40e_queue_ctrl {
 	I40E_QUEUE_CTRL_UNKNOWN = 0,
-- 
GitLab


From 57f290572f45560d418c6639efbe649b008e710e Mon Sep 17 00:00:00 2001
From: Mateusz Palczewski <mateusz.palczewski@intel.com>
Date: Fri, 16 Jul 2021 11:33:56 +0200
Subject: [PATCH 2178/4878] i40e: Fix pre-set max number of queues for VF

commit 8aa55ab422d9d0d825ebfb877702ed661e96e682 upstream.

After setting pre-set combined to 16 queues and reserving 16 queues by
tc qdisc, pre-set maximum combined queues returned to default value
after VF reset being 4 and this generated errors during removing tc.
Fixed by removing clear num_req_queues before reset VF.

Fixes: e284fc280473 (i40e: Add and delete cloud filter)
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Bindushree P <Bindushree.p@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 7af777a9873b9..5a58edba4adfc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -3787,11 +3787,6 @@ static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
 
 	/* set this flag only after making sure all inputs are sane */
 	vf->adq_enabled = true;
-	/* num_req_queues is set when user changes number of queues via ethtool
-	 * and this causes issue for default VSI(which depends on this variable)
-	 * when ADq is enabled, hence reset it.
-	 */
-	vf->num_req_queues = 0;
 
 	/* reset the VF in order to allocate resources */
 	i40e_vc_reset_vf(vf, true);
-- 
GitLab


From 0b2e1fccdf48964588bc67c7dd06d6aa57de88ee Mon Sep 17 00:00:00 2001
From: Herve Codina <herve.codina@bootlin.com>
Date: Fri, 19 Nov 2021 16:03:15 +0100
Subject: [PATCH 2179/4878] mtd: rawnand: fsmc: Take instruction delay into
 account

commit a4ca0c439f2d5ce9a3dc118d882f9f03449864c8 upstream.

The FSMC NAND controller should apply a delay after the
instruction has been issued on the bus.
The FSMC NAND controller driver did not handle this delay.

Add this waiting delay in the FSMC NAND controller driver.

Fixes: 4da712e70294 ("mtd: nand: fsmc: use ->exec_op()")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-4-herve.codina@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/fsmc_nand.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index ce05dd4088e9d..4b657b4f16298 100644
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -15,6 +15,7 @@
 
 #include <linux/clk.h>
 #include <linux/completion.h>
+#include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-direction.h>
 #include <linux/dma-mapping.h>
@@ -653,6 +654,9 @@ static int fsmc_exec_op(struct nand_chip *chip, const struct nand_operation *op,
 						instr->ctx.waitrdy.timeout_ms);
 			break;
 		}
+
+		if (instr->delay_ns)
+			ndelay(instr->delay_ns);
 	}
 
 	return ret;
-- 
GitLab


From 347cc9b4d9662aebc3aa7a12c12f0c8c091d1db9 Mon Sep 17 00:00:00 2001
From: Herve Codina <herve.codina@bootlin.com>
Date: Fri, 19 Nov 2021 16:03:16 +0100
Subject: [PATCH 2180/4878] mtd: rawnand: fsmc: Fix timing computation

commit 9472335eaa1452b51dc8e8edaa1a342997cb80c7 upstream.

Under certain circumstances, the timing settings calculated by
the FSMC NAND controller driver were inaccurate.
These settings led to incorrect data reads or fallback to
timing mode 0 depending on the NAND chip used.

The timing computation did not take into account the following
constraint given in SPEAr3xx reference manual:
  twait >= tCEA - (tset * TCLK) + TOUTDEL + TINDEL

Enhance the timings calculation by taking into account this
additional constraint.

This change has no impact on slow timing modes such as mode 0.
Indeed, on mode 0, computed values are the same with and
without the patch.

NANDs which previously stayed in mode 0 because of fallback to
mode 0 can now work at higher speeds and NANDs which were not
working at all because of the corrupted data work at high
speeds without troubles.

Overall improvement on a Micron/MT29F1G08 (flash_speed tool):
                        mode0       mode3
eraseblock write speed  3220 KiB/s  4511 KiB/s
eraseblock read speed   4491 KiB/s  7529 KiB/s

Fixes: d9fb079571833 ("mtd: nand: fsmc: add support for SDR timings")
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211119150316.43080-5-herve.codina@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/fsmc_nand.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index 4b657b4f16298..663ff5300ad99 100644
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -94,6 +94,14 @@
 
 #define FSMC_BUSY_WAIT_TIMEOUT	(1 * HZ)
 
+/*
+ * According to SPEAr300 Reference Manual (RM0082)
+ *  TOUDEL = 7ns (Output delay from the flip-flops to the board)
+ *  TINDEL = 5ns (Input delay from the board to the flipflop)
+ */
+#define TOUTDEL	7000
+#define TINDEL	5000
+
 struct fsmc_nand_timings {
 	u8 tclr;
 	u8 tar;
@@ -278,7 +286,7 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host,
 {
 	unsigned long hclk = clk_get_rate(host->clk);
 	unsigned long hclkn = NSEC_PER_SEC / hclk;
-	u32 thiz, thold, twait, tset;
+	u32 thiz, thold, twait, tset, twait_min;
 
 	if (sdrt->tRC_min < 30000)
 		return -EOPNOTSUPP;
@@ -310,13 +318,6 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host,
 	else if (tims->thold > FSMC_THOLD_MASK)
 		tims->thold = FSMC_THOLD_MASK;
 
-	twait = max(sdrt->tRP_min, sdrt->tWP_min);
-	tims->twait = DIV_ROUND_UP(twait / 1000, hclkn) - 1;
-	if (tims->twait == 0)
-		tims->twait = 1;
-	else if (tims->twait > FSMC_TWAIT_MASK)
-		tims->twait = FSMC_TWAIT_MASK;
-
 	tset = max(sdrt->tCS_min - sdrt->tWP_min,
 		   sdrt->tCEA_max - sdrt->tREA_max);
 	tims->tset = DIV_ROUND_UP(tset / 1000, hclkn) - 1;
@@ -325,6 +326,21 @@ static int fsmc_calc_timings(struct fsmc_nand_data *host,
 	else if (tims->tset > FSMC_TSET_MASK)
 		tims->tset = FSMC_TSET_MASK;
 
+	/*
+	 * According to SPEAr300 Reference Manual (RM0082) which gives more
+	 * information related to FSMSC timings than the SPEAr600 one (RM0305),
+	 *   twait >= tCEA - (tset * TCLK) + TOUTDEL + TINDEL
+	 */
+	twait_min = sdrt->tCEA_max - ((tims->tset + 1) * hclkn * 1000)
+		    + TOUTDEL + TINDEL;
+	twait = max3(sdrt->tRP_min, sdrt->tWP_min, twait_min);
+
+	tims->twait = DIV_ROUND_UP(twait / 1000, hclkn) - 1;
+	if (tims->twait == 0)
+		tims->twait = 1;
+	else if (tims->twait > FSMC_TWAIT_MASK)
+		tims->twait = FSMC_TWAIT_MASK;
+
 	return 0;
 }
 
-- 
GitLab


From e5b7fb2198abc50058f1a29c395b004f76ab1c83 Mon Sep 17 00:00:00 2001
From: Norbert Zulinski <norbertx.zulinski@intel.com>
Date: Mon, 22 Nov 2021 12:29:05 +0100
Subject: [PATCH 2181/4878] i40e: Fix NULL pointer dereference in
 i40e_dbg_dump_desc

commit 23ec111bf3549aae37140330c31a16abfc172421 upstream.

When trying to dump VFs VSI RX/TX descriptors
using debugfs there was a crash
due to NULL pointer dereference in i40e_dbg_dump_desc.
Added a check to i40e_dbg_dump_desc that checks if
VSI type is correct for dumping RX/TX descriptors.

Fixes: 02e9c290814c ("i40e: debugfs interface")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Norbert Zulinski <norbertx.zulinski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index d627b59ad4465..714b578b2b49c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -553,6 +553,14 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 		return;
 	}
+	if (vsi->type != I40E_VSI_MAIN &&
+	    vsi->type != I40E_VSI_FDIR &&
+	    vsi->type != I40E_VSI_VMDQ2) {
+		dev_info(&pf->pdev->dev,
+			 "vsi %d type %d descriptor rings not available\n",
+			 vsi_seid, vsi->type);
+		return;
+	}
 	if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
 		dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
 		return;
-- 
GitLab


From 391ca20ea16e0921840b8927f38b052d5657862a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Thu, 25 Nov 2021 17:01:48 +0100
Subject: [PATCH 2182/4878] Revert "PCI: aardvark: Fix support for
 PCI_ROM_ADDRESS1 on emulated bridge"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 39bd54d43b3f8b3c7b3a75f5d868d8bb858860e7 upstream.

This reverts commit 239edf686c14a9ff926dec2f350289ed7adfefe2.

239edf686c14 ("PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated
bridge") added support for the Type 1 Expansion ROM BAR at config offset
0x38, based on the register being listed in the Marvell Armada A3720 spec.
But the spec doesn't document it at all for RC mode, and there is no ROM in
the SOC, so remove this emulation for now.

The PCI bridge which represents aardvark's PCIe Root Port has an Expansion
ROM Base Address register at offset 0x30, but its meaning is different than
PCI's Expansion ROM BAR register, although the layout is the same.  (This
is why we thought it does the same thing.)

First: there is no ROM (or part of BootROM) in the A3720 SOC dedicated for
PCIe Root Port (or controller in RC mode) containing executable code that
would initialize the Root Port, suitable for execution in bootloader (this
is how Expansion ROM BAR is used on x86).

Second: in A3720 spec the register (address 0xD0070030) is not documented
at all for Root Complex mode, but similar to other BAR registers, it has an
"entangled partner" in register 0xD0075920, which does address translation
for the BAR in 0xD0070030:

  - the BAR register sets the address from the view of PCIe bus

  - the translation register sets the address from the view of the CPU

The other BAR registers also have this entangled partner, and they can be
used to:

  - in RC mode: address-checking on the receive side of the RC (they can
    define address ranges for memory accesses from remote Endpoints to the
    RC)

  - in Endpoint mode: allow the remote CPU to access memory on A3720

The Expansion ROM BAR has only the Endpoint part documented, but from the
similarities we think that it can also be used in RC mode in that way.

So either Expansion ROM BAR has different meaning (if the hypothesis above
is true), or we don't know it's meaning (since it is not documented for RC
mode).

Remove the register from the emulated bridge accessing functions.

[bhelgaas: summarize reason for removal (first paragraph)]
Fixes: 239edf686c14 ("PCI: aardvark: Fix support for PCI_ROM_ADDRESS1 on emulated bridge")
Link: https://lore.kernel.org/r/20211125160148.26029-3-kabel@kernel.org
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 604b294bb15c9..0f6a6685ab5b5 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -31,7 +31,6 @@
 #define PCIE_CORE_DEV_ID_REG					0x0
 #define PCIE_CORE_CMD_STATUS_REG				0x4
 #define PCIE_CORE_DEV_REV_REG					0x8
-#define PCIE_CORE_EXP_ROM_BAR_REG				0x30
 #define PCIE_CORE_PCIEXP_CAP					0xc0
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
 #define     PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX			BIT(5)
@@ -781,10 +780,6 @@ advk_pci_bridge_emul_base_conf_read(struct pci_bridge_emul *bridge,
 		*value = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 		return PCI_BRIDGE_EMUL_HANDLED;
 
-	case PCI_ROM_ADDRESS1:
-		*value = advk_readl(pcie, PCIE_CORE_EXP_ROM_BAR_REG);
-		return PCI_BRIDGE_EMUL_HANDLED;
-
 	case PCI_INTERRUPT_LINE: {
 		/*
 		 * From the whole 32bit register we support reading from HW only
@@ -817,10 +812,6 @@ advk_pci_bridge_emul_base_conf_write(struct pci_bridge_emul *bridge,
 		advk_writel(pcie, new, PCIE_CORE_CMD_STATUS_REG);
 		break;
 
-	case PCI_ROM_ADDRESS1:
-		advk_writel(pcie, new, PCIE_CORE_EXP_ROM_BAR_REG);
-		break;
-
 	case PCI_INTERRUPT_LINE:
 		if (mask & (PCI_BRIDGE_CTL_BUS_RESET << 16)) {
 			u32 val = advk_readl(pcie, PCIE_CORE_CTRL1_REG);
-- 
GitLab


From 77d255d28b342bb45cbc18fc3ad577ef09f3af75 Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Tue, 23 Nov 2021 16:12:29 -0800
Subject: [PATCH 2183/4878] perf tools: Fix SMT detection fast read path

commit 4ffbe87e2d5b53bcb0213d8650bbe70bf942de6a upstream.

sysfs__read_int() returns 0 on success, and so the fast read path was
always failing.

Fixes: bb629484d924118e ("perf tools: Simplify checking if SMT is active.")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211124001231.3277836-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/smt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/smt.c b/tools/perf/util/smt.c
index 20bacd5972ade..34f1b1b1176c7 100644
--- a/tools/perf/util/smt.c
+++ b/tools/perf/util/smt.c
@@ -15,7 +15,7 @@ int smt_on(void)
 	if (cached)
 		return cached_result;
 
-	if (sysfs__read_int("devices/system/cpu/smt/active", &cached_result) > 0)
+	if (sysfs__read_int("devices/system/cpu/smt/active", &cached_result) >= 0)
 		goto done;
 
 	ncpu = sysconf(_SC_NPROCESSORS_CONF);
-- 
GitLab


From 3f57215f748b23a4985b06203a6092c13c7538fb Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat, 27 Nov 2021 17:31:59 +0100
Subject: [PATCH 2184/4878] Documentation/locking/locktypes: Update
 migrate_disable() bits.

commit 6a631c0432dcccbcf45839016a07c015e335e9ae upstream.

The initial implementation of migrate_disable() for mainline was a
wrapper around preempt_disable(). RT kernels substituted this with
a real migrate disable implementation.

Later on mainline gained true migrate disable support, but the
documentation was not updated.

Update the documentation, remove the claims about migrate_disable()
mapping to preempt_disable() on non-PREEMPT_RT kernels.

Fixes: 74d862b682f51 ("sched: Make migrate_disable/enable() independent of RT")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211127163200.10466-2-bigeasy@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/locking/locktypes.rst | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst
index ddada4a537493..4fd7b70fcde19 100644
--- a/Documentation/locking/locktypes.rst
+++ b/Documentation/locking/locktypes.rst
@@ -439,11 +439,9 @@ preemption. The following substitution works on both kernels::
   spin_lock(&p->lock);
   p->count += this_cpu_read(var2);
 
-On a non-PREEMPT_RT kernel migrate_disable() maps to preempt_disable()
-which makes the above code fully equivalent. On a PREEMPT_RT kernel
 migrate_disable() ensures that the task is pinned on the current CPU which
 in turn guarantees that the per-CPU access to var1 and var2 are staying on
-the same CPU.
+the same CPU while the task remains preemptible.
 
 The migrate_disable() substitution is not valid for the following
 scenario::
@@ -456,9 +454,8 @@ scenario::
     p = this_cpu_ptr(&var1);
     p->val = func2();
 
-While correct on a non-PREEMPT_RT kernel, this breaks on PREEMPT_RT because
-here migrate_disable() does not protect against reentrancy from a
-preempting task. A correct substitution for this case is::
+This breaks because migrate_disable() does not protect against reentrancy from
+a preempting task. A correct substitution for this case is::
 
   func()
   {
-- 
GitLab


From 42bea3a1b7f24fd42470ba5d7c4daa8763415caa Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@ew.tq-group.com>
Date: Tue, 30 Nov 2021 09:27:56 +0100
Subject: [PATCH 2185/4878] dt-bindings: net: Reintroduce PHY no lane swap
 binding

commit 96db48c9d777a73a33b1d516c5cfed7a417a5f40 upstream.

This binding was already documented in phy.txt, commit 252ae5330daa
("Documentation: devicetree: Add PHY no lane swap binding"), but got
accidently removed during YAML conversion in commit d8704342c109
("dt-bindings: net: Add a YAML schemas for the generic PHY options").

Note: 'enet-phy-lane-no-swap' and the absence of 'enet-phy-lane-swap' are
not identical, as the former one disable this feature, while the latter
one doesn't change anything.

Fixes: d8704342c109 ("dt-bindings: net: Add a YAML schemas for the generic PHY options")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20211130082756.713919-1-alexander.stein@ew.tq-group.com
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/net/ethernet-phy.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index 6dd72faebd896..a054accc20bd4 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
@@ -91,6 +91,14 @@ properties:
       compensate for the board being designed with the lanes
       swapped.
 
+  enet-phy-lane-no-swap:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      If set, indicates that PHY will disable swap of the
+      TX/RX lanes. This property allows the PHY to work correcly after
+      e.g. wrong bootstrap configuration caused by issues in PCB
+      layout design.
+
   eee-broken-100tx:
     $ref: /schemas/types.yaml#definitions/flag
     description:
-- 
GitLab


From 47322fddb41ec25490572506bc4533f18725f634 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 30 Nov 2021 10:12:41 -0300
Subject: [PATCH 2186/4878] tools build: Remove needless libpython-version
 feature check that breaks test-all fast path
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 3d1d57debee2d342a47615707588b96658fabb85 upstream.

Since 66dfdff03d196e51 ("perf tools: Add Python 3 support") we don't use
the tools/build/feature/test-libpython-version.c version in any Makefile
feature check:

  $ find tools/ -type f | xargs grep feature-libpython-version
  $

The only place where this was used was removed in 66dfdff03d196e51:

  -        ifneq ($(feature-libpython-version), 1)
  -          $(warning Python 3 is not yet supported; please set)
  -          $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
  -          $(warning If you also have Python 2 installed, then)
  -          $(warning try something like:)
  -          $(warning $(and ,))
  -          $(warning $(and ,)  make PYTHON=python2)
  -          $(warning $(and ,))
  -          $(warning Otherwise, disable Python support entirely:)
  -          $(warning $(and ,))
  -          $(warning $(and ,)  make NO_LIBPYTHON=1)
  -          $(warning $(and ,))
  -          $(error   $(and ,))
  -        else
  -          LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
  -          EXTLIBS += $(PYTHON_EMBED_LIBADD)
  -          LANG_BINDINGS += $(obj-perf)python/perf.so
  -          $(call detected,CONFIG_LIBPYTHON)
  -        endif

And nowadays we either build with PYTHON=python3 or just install the
python3 devel packages and perf will build against it.

But the leftover feature-libpython-version check made the fast path
feature detection to break in all cases except when python2 devel files
were installed:

  $ rpm -qa | grep python.*devel
  python3-devel-3.9.7-1.fc34.x86_64
  $ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;
  $ make -C tools/perf O=/tmp/build/perf install-bin
  make: Entering directory '/var/home/acme/git/perf/tools/perf'
    BUILD:   Doing 'make -j32' parallel build
    HOSTCC  /tmp/build/perf/fixdep.o
  <SNIP>
  $ cat /tmp/build/perf/feature/test-all.make.output
  In file included from test-all.c:18:
  test-libpython-version.c:5:10: error: #error
      5 |         #error
        |          ^~~~~
  $ ldd ~/bin/perf | grep python
	libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007fda6dbcf000)
  $

As python3 is the norm these days, fix this by just removing the unused
feature-libpython-version feature check, making the test-all fast path
to work with the common case.

With this:

  $ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ;
  $ make -C tools/perf O=/tmp/build/perf install-bin |& head
  make: Entering directory '/var/home/acme/git/perf/tools/perf'
    BUILD:   Doing 'make -j32' parallel build
    HOSTCC  /tmp/build/perf/fixdep.o
    HOSTLD  /tmp/build/perf/fixdep-in.o
    LINK    /tmp/build/perf/fixdep

  Auto-detecting system features:
  ...                         dwarf: [ on  ]
  ...            dwarf_getlocations: [ on  ]
  ...                         glibc: [ on  ]
  $ ldd ~/bin/perf | grep python
	libpython3.9.so.1.0 => /lib64/libpython3.9.so.1.0 (0x00007f58800b0000)
  $ cat /tmp/build/perf/feature/test-all.make.output
  $

Reviewed-by: James Clark <james.clark@arm.com>
Fixes: 66dfdff03d196e51 ("perf tools: Add Python 3 support")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jaroslav Škarvada <jskarvad@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/YaYmeeC6CS2b8OSz@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/build/Makefile.feature                 |  1 -
 tools/build/feature/Makefile                 |  4 ----
 tools/build/feature/test-all.c               |  5 -----
 tools/build/feature/test-libpython-version.c | 11 -----------
 tools/perf/Makefile.config                   |  2 --
 5 files changed, 23 deletions(-)
 delete mode 100644 tools/build/feature/test-libpython-version.c

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 97cbfb31b7625..e1d2c255669e6 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -49,7 +49,6 @@ FEATURE_TESTS_BASIC :=                  \
         numa_num_possible_cpus          \
         libperl                         \
         libpython                       \
-        libpython-version               \
         libslang                        \
         libslang-include-subdir         \
         libcrypto                       \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 89ba522e377dc..22ea350dab588 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -31,7 +31,6 @@ FILES=                                          \
          test-numa_num_possible_cpus.bin        \
          test-libperl.bin                       \
          test-libpython.bin                     \
-         test-libpython-version.bin             \
          test-libslang.bin                      \
          test-libslang-include-subdir.bin       \
          test-libcrypto.bin                     \
@@ -220,9 +219,6 @@ $(OUTPUT)test-libperl.bin:
 $(OUTPUT)test-libpython.bin:
 	$(BUILD) $(FLAGS_PYTHON_EMBED)
 
-$(OUTPUT)test-libpython-version.bin:
-	$(BUILD)
-
 $(OUTPUT)test-libbfd.bin:
 	$(BUILD) -DPACKAGE='"perf"' -lbfd -ldl
 
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 464873883396e..09517ff2fad56 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -14,10 +14,6 @@
 # include "test-libpython.c"
 #undef main
 
-#define main main_test_libpython_version
-# include "test-libpython-version.c"
-#undef main
-
 #define main main_test_libperl
 # include "test-libperl.c"
 #undef main
@@ -181,7 +177,6 @@
 int main(int argc, char *argv[])
 {
 	main_test_libpython();
-	main_test_libpython_version();
 	main_test_libperl();
 	main_test_hello();
 	main_test_libelf();
diff --git a/tools/build/feature/test-libpython-version.c b/tools/build/feature/test-libpython-version.c
deleted file mode 100644
index 47714b942d4d3..0000000000000
--- a/tools/build/feature/test-libpython-version.c
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <Python.h>
-
-#if PY_VERSION_HEX >= 0x03000000
-	#error
-#endif
-
-int main(void)
-{
-	return 0;
-}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 014b959575cae..68408a5ecfed2 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -259,8 +259,6 @@ endif
 
 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
-FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
-FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
 
 FEATURE_CHECK_LDFLAGS-libaio = -lrt
 
-- 
GitLab


From 385ffd31ebdb3b3846c5713141e2fd406fd12cee Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 2 Dec 2021 14:34:37 +0000
Subject: [PATCH 2187/4878] net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset
 or zero
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 2be6d4d16a0849455a5c22490e3c5983495fed00 upstream.

Currently, due to the sequential use of min_t() and clamp_t() macros,
in cdc_ncm_check_tx_max(), if dwNtbOutMaxSize is not set, the logic
sets tx_max to 0.  This is then used to allocate the data area of the
SKB requested later in cdc_ncm_fill_tx_frame().

This does not cause an issue presently because when memory is
allocated during initialisation phase of SKB creation, more memory
(512b) is allocated than is required for the SKB headers alone (320b),
leaving some space (512b - 320b = 192b) for CDC data (172b).

However, if more elements (for example 3 x u64 = [24b]) were added to
one of the SKB header structs, say 'struct skb_shared_info',
increasing its original size (320b [320b aligned]) to something larger
(344b [384b aligned]), then suddenly the CDC data (172b) no longer
fits in the spare SKB data area (512b - 384b = 128b).

Consequently the SKB bounds checking semantics fails and panics:

  skbuff: skb_over_panic: text:ffffffff830a5b5f len:184 put:172   \
     head:ffff888119227c00 data:ffff888119227c00 tail:0xb8 end:0x80 dev:<NULL>

  ------------[ cut here ]------------
  kernel BUG at net/core/skbuff.c:110!
  RIP: 0010:skb_panic+0x14f/0x160 net/core/skbuff.c:106
  <snip>
  Call Trace:
   <IRQ>
   skb_over_panic+0x2c/0x30 net/core/skbuff.c:115
   skb_put+0x205/0x210 net/core/skbuff.c:1877
   skb_put_zero include/linux/skbuff.h:2270 [inline]
   cdc_ncm_ndp16 drivers/net/usb/cdc_ncm.c:1116 [inline]
   cdc_ncm_fill_tx_frame+0x127f/0x3d50 drivers/net/usb/cdc_ncm.c:1293
   cdc_ncm_tx_fixup+0x98/0xf0 drivers/net/usb/cdc_ncm.c:1514

By overriding the max value with the default CDC_NCM_NTB_MAX_SIZE_TX
when not offered through the system provided params, we ensure enough
data space is allocated to handle the CDC data, meaning no crash will
occur.

Cc: Oliver Neukum <oliver@neukum.org>
Fixes: 289507d3364f9 ("net: cdc_ncm: use sysfs for rx/tx aggregation tuning")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20211202143437.1411410-1-lee.jones@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/cdc_ncm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 04c4f1570bc8c..eaaa5aee58251 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -181,6 +181,8 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx)
 		min = ctx->max_datagram_size + ctx->max_ndp_size + sizeof(struct usb_cdc_ncm_nth32);
 
 	max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_TX, le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize));
+	if (max == 0)
+		max = CDC_NCM_NTB_MAX_SIZE_TX; /* dwNtbOutMaxSize not set */
 
 	/* some devices set dwNtbOutMaxSize too low for the above default */
 	min = min(min, max);
-- 
GitLab


From 83b16b9c441ba49ed44bcda3652ce782f506dff5 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 3 Dec 2021 13:11:28 +0300
Subject: [PATCH 2188/4878] net: altera: set a couple error code in probe()

commit badd7857f5c933a3dc34942a2c11d67fdbdc24de upstream.

There are two error paths which accidentally return success instead of
a negative error code.

Fixes: bbd2190ce96d ("Altera TSE: Add main and header file for Altera Ethernet Driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/altera/altera_tse_main.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 907125abef2c1..a7d8d45e0e941 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1431,16 +1431,19 @@ static int altera_tse_probe(struct platform_device *pdev)
 		priv->rxdescmem_busaddr = dma_res->start;
 
 	} else {
+		ret = -ENODEV;
 		goto err_free_netdev;
 	}
 
-	if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask)))
+	if (!dma_set_mask(priv->device, DMA_BIT_MASK(priv->dmaops->dmamask))) {
 		dma_set_coherent_mask(priv->device,
 				      DMA_BIT_MASK(priv->dmaops->dmamask));
-	else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32)))
+	} else if (!dma_set_mask(priv->device, DMA_BIT_MASK(32))) {
 		dma_set_coherent_mask(priv->device, DMA_BIT_MASK(32));
-	else
+	} else {
+		ret = -EIO;
 		goto err_free_netdev;
+	}
 
 	/* MAC address space */
 	ret = request_and_map(pdev, "control_port", &control_port,
-- 
GitLab


From ae673832086e7b5a2d7f7a807baf96b87ad42e36 Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Mon, 6 Dec 2021 21:54:57 +0800
Subject: [PATCH 2189/4878] net: fec: only clear interrupt of handling queue in
 fec_enet_rx_queue()

commit b5bd95d17102b6719e3531d627875b9690371383 upstream.

Background:
We have a customer is running a Profinet stack on the 8MM which receives and
responds PNIO packets every 4ms and PNIO-CM packets every 40ms. However, from
time to time the received PNIO-CM package is "stock" and is only handled when
receiving a new PNIO-CM or DCERPC-Ping packet (tcpdump shows the PNIO-CM and
the DCERPC-Ping packet at the same time but the PNIO-CM HW timestamp is from
the expected 40 ms and not the 2s delay of the DCERPC-Ping).

After debugging, we noticed PNIO, PNIO-CM and DCERPC-Ping packets would
be handled by different RX queues.

The root cause should be driver ack all queues' interrupt when handle a
specific queue in fec_enet_rx_queue(). The blamed patch is introduced to
receive as much packets as possible once to avoid interrupt flooding.
But it's unreasonable to clear other queues'interrupt when handling one
queue, this patch tries to fix it.

Fixes: ed63f1dcd578 (net: fec: clear receive interrupts before processing a packet)
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Reported-by: Nicolas Diaz <nicolas.diaz@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Link: https://lore.kernel.org/r/20211206135457.15946-1-qiangqing.zhang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/freescale/fec.h      | 3 +++
 drivers/net/ethernet/freescale/fec_main.c | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index c527f4ee1d3ae..6ea98af63b341 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -373,6 +373,9 @@ struct bufdesc_ex {
 #define FEC_ENET_WAKEUP	((uint)0x00020000)	/* Wakeup request */
 #define FEC_ENET_TXF	(FEC_ENET_TXF_0 | FEC_ENET_TXF_1 | FEC_ENET_TXF_2)
 #define FEC_ENET_RXF	(FEC_ENET_RXF_0 | FEC_ENET_RXF_1 | FEC_ENET_RXF_2)
+#define FEC_ENET_RXF_GET(X)	(((X) == 0) ? FEC_ENET_RXF_0 :	\
+				(((X) == 1) ? FEC_ENET_RXF_1 :	\
+				FEC_ENET_RXF_2))
 #define FEC_ENET_TS_AVAIL       ((uint)0x00010000)
 #define FEC_ENET_TS_TIMER       ((uint)0x00008000)
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 94eb838a01760..166bc3f3b34cc 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1439,7 +1439,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 			break;
 		pkt_received++;
 
-		writel(FEC_ENET_RXF, fep->hwp + FEC_IEVENT);
+		writel(FEC_ENET_RXF_GET(queue_id), fep->hwp + FEC_IEVENT);
 
 		/* Check for errors. */
 		status ^= BD_ENET_RX_LAST;
-- 
GitLab


From 5e663bcd9a377ab79ada246585b1dc2b965371d1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 6 Dec 2021 08:53:29 -0800
Subject: [PATCH 2190/4878] net, neigh: clear whole pneigh_entry at alloc time

commit e195e9b5dee6459d8c8e6a314cc71a644a0537fd upstream.

Commit 2c611ad97a82 ("net, neigh: Extend neigh->flags to 32 bit
to allow for extensions") enables a new KMSAM warning [1]

I think the bug is actually older, because the following intruction
only occurred if ndm->ndm_flags had NTF_PROXY set.

	pn->flags = ndm->ndm_flags;

Let's clear all pneigh_entry fields at alloc time.

[1]
BUG: KMSAN: uninit-value in pneigh_fill_info+0x986/0xb30 net/core/neighbour.c:2593
 pneigh_fill_info+0x986/0xb30 net/core/neighbour.c:2593
 pneigh_dump_table net/core/neighbour.c:2715 [inline]
 neigh_dump_info+0x1e3f/0x2c60 net/core/neighbour.c:2832
 netlink_dump+0xaca/0x16a0 net/netlink/af_netlink.c:2265
 __netlink_dump_start+0xd1c/0xee0 net/netlink/af_netlink.c:2370
 netlink_dump_start include/linux/netlink.h:254 [inline]
 rtnetlink_rcv_msg+0x181b/0x18c0 net/core/rtnetlink.c:5534
 netlink_rcv_skb+0x447/0x800 net/netlink/af_netlink.c:2491
 rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:5589
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x1095/0x1360 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x16f3/0x1870 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 sock_write_iter+0x594/0x690 net/socket.c:1057
 call_write_iter include/linux/fs.h:2162 [inline]
 new_sync_write fs/read_write.c:503 [inline]
 vfs_write+0x1318/0x2030 fs/read_write.c:590
 ksys_write+0x28c/0x520 fs/read_write.c:643
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __x64_sys_write+0xdb/0x120 fs/read_write.c:652
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 slab_alloc mm/slub.c:3259 [inline]
 __kmalloc+0xc3c/0x12d0 mm/slub.c:4437
 kmalloc include/linux/slab.h:595 [inline]
 pneigh_lookup+0x60f/0xd70 net/core/neighbour.c:766
 arp_req_set_public net/ipv4/arp.c:1016 [inline]
 arp_req_set+0x430/0x10a0 net/ipv4/arp.c:1032
 arp_ioctl+0x8d4/0xb60 net/ipv4/arp.c:1232
 inet_ioctl+0x4ef/0x820 net/ipv4/af_inet.c:947
 sock_do_ioctl net/socket.c:1118 [inline]
 sock_ioctl+0xa3f/0x13e0 net/socket.c:1235
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0x2df/0x4a0 fs/ioctl.c:860
 __x64_sys_ioctl+0xd8/0x110 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

CPU: 1 PID: 20001 Comm: syz-executor.0 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 62dd93181aaa ("[IPV6] NDISC: Set per-entry is_router flag in Proxy NA.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Roopa Prabhu <roopa@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211206165329.1049835-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/neighbour.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 8eec7667aa761..52a1c8725337b 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -734,11 +734,10 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
 
 	ASSERT_RTNL();
 
-	n = kmalloc(sizeof(*n) + key_len, GFP_KERNEL);
+	n = kzalloc(sizeof(*n) + key_len, GFP_KERNEL);
 	if (!n)
 		goto out;
 
-	n->protocol = 0;
 	write_pnet(&n->net, net);
 	memcpy(n->key, pkey, key_len);
 	n->dev = dev;
-- 
GitLab


From 126d1897cbff8f616eebcf69dae0ce6e0d25b1b0 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 7 Dec 2021 11:24:16 +0300
Subject: [PATCH 2191/4878] net/qla3xxx: fix an error code in ql_adapter_up()

commit d17b9737c2bc09b4ac6caf469826e5a7ce3ffab7 upstream.

The ql_wait_for_drvr_lock() fails and returns false, then this
function should return an error code instead of returning success.

The other problem is that the success path prints an error message
netdev_err(ndev, "Releasing driver lock\n");  Delete that and
re-order the code a little to make it more clear.

Fixes: 5a4faa873782 ("[PATCH] qla3xxx NIC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211207082416.GA16110@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qla3xxx.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index c7923e22a4c42..c9f32fc50254f 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -3494,20 +3494,19 @@ static int ql_adapter_up(struct ql3_adapter *qdev)
 
 	spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 
-	err = ql_wait_for_drvr_lock(qdev);
-	if (err) {
-		err = ql_adapter_initialize(qdev);
-		if (err) {
-			netdev_err(ndev, "Unable to initialize adapter\n");
-			goto err_init;
-		}
-		netdev_err(ndev, "Releasing driver lock\n");
-		ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
-	} else {
+	if (!ql_wait_for_drvr_lock(qdev)) {
 		netdev_err(ndev, "Could not acquire driver lock\n");
+		err = -ENODEV;
 		goto err_lock;
 	}
 
+	err = ql_adapter_initialize(qdev);
+	if (err) {
+		netdev_err(ndev, "Unable to initialize adapter\n");
+		goto err_init;
+	}
+	ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
+
 	spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 
 	set_bit(QL_ADAPTER_UP, &qdev->flags);
-- 
GitLab


From 63fc70bffa16de431a51da7f530011de1b469780 Mon Sep 17 00:00:00 2001
From: Peilin Ye <peilin.ye@bytedance.com>
Date: Tue, 30 Nov 2021 16:47:20 -0800
Subject: [PATCH 2192/4878] selftests/fib_tests: Rework fib_rp_filter_test()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f6071e5e3961eeb5300bd0901c9e128598730ae3 upstream.

Currently rp_filter tests in fib_tests.sh:fib_rp_filter_test() are
failing.  ping sockets are bound to dummy1 using the "-I" option
(SO_BINDTODEVICE), but socket lookup is failing when receiving ping
replies, since the routing table thinks they belong to dummy0.

For example, suppose ping is using a SOCK_RAW socket for ICMP messages.
When receiving ping replies, in __raw_v4_lookup(), sk->sk_bound_dev_if
is 3 (dummy1), but dif (skb_rtable(skb)->rt_iif) says 2 (dummy0), so the
raw_sk_bound_dev_eq() check fails.  Similar things happen in
ping_lookup() for SOCK_DGRAM sockets.

These tests used to pass due to a bug [1] in iputils, where "ping -I"
actually did not bind ICMP message sockets to device.  The bug has been
fixed by iputils commit f455fee41c07 ("ping: also bind the ICMP socket
to the specific device") in 2016, which is why our rp_filter tests
started to fail.  See [2] .

Fixing the tests while keeping everything in one netns turns out to be
nontrivial.  Rework the tests and build the following topology:

 ┌─────────────────────────────┐    ┌─────────────────────────────┐
 │  network namespace 1 (ns1)  │    │  network namespace 2 (ns2)  │
 │                             │    │                             │
 │  ┌────┐     ┌─────┐         │    │  ┌─────┐            ┌────┐  │
 │  │ lo │<───>│veth1│<────────┼────┼─>│veth2│<──────────>│ lo │  │
 │  └────┘     ├─────┴──────┐  │    │  ├─────┴──────┐     └────┘  │
 │             │192.0.2.1/24│  │    │  │192.0.2.1/24│             │
 │             └────────────┘  │    │  └────────────┘             │
 └─────────────────────────────┘    └─────────────────────────────┘

Consider sending an ICMP_ECHO packet A in ns2.  Both source and
destination IP addresses are 192.0.2.1, and we use strict mode rp_filter
in both ns1 and ns2:

  1. A is routed to lo since its destination IP address is one of ns2's
     local addresses (veth2);
  2. A is redirected from lo's egress to veth2's egress using mirred;
  3. A arrives at veth1's ingress in ns1;
  4. A is redirected from veth1's ingress to lo's ingress, again, using
     mirred;
  5. In __fib_validate_source(), fib_info_nh_uses_dev() returns false,
     since A was received on lo, but reverse path lookup says veth1;
  6. However A is not dropped since we have relaxed this check for lo in
     commit 66f8209547cc ("fib: relax source validation check for loopback
     packets");

Making sure A is not dropped here in this corner case is the whole point
of having this test.

  7. As A reaches the ICMP layer, an ICMP_ECHOREPLY packet, B, is
     generated;
  8. Similarly, B is redirected from lo's egress to veth1's egress (in
     ns1), then redirected once again from veth2's ingress to lo's
     ingress (in ns2), using mirred.

Also test "ping 127.0.0.1" from ns2.  It does not trigger the relaxed
check in __fib_validate_source(), but just to make sure the topology
works with loopback addresses.

Tested with ping from iputils 20210722-41-gf9fb573:

$ ./fib_tests.sh -t rp_filter

IPv4 rp_filter tests
    TEST: rp_filter passes local packets		[ OK ]
    TEST: rp_filter passes loopback packets		[ OK ]

[1] https://github.com/iputils/iputils/issues/55
[2] https://github.com/iputils/iputils/commit/f455fee41c077d4b700a473b2f5b3487b8febc1d

Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Fixes: adb701d6cfa4 ("selftests: add a test case for rp_filter")
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20211201004720.6357-1-yepeilin.cs@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/net/fib_tests.sh | 59 ++++++++++++++++++++----
 1 file changed, 49 insertions(+), 10 deletions(-)

diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
index 6fad54c7ecb4a..a7f53c2a9580a 100755
--- a/tools/testing/selftests/net/fib_tests.sh
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -444,24 +444,63 @@ fib_rp_filter_test()
 	setup
 
 	set -e
+	ip netns add ns2
+	ip netns set ns2 auto
+
+	ip -netns ns2 link set dev lo up
+
+	$IP link add name veth1 type veth peer name veth2
+	$IP link set dev veth2 netns ns2
+	$IP address add 192.0.2.1/24 dev veth1
+	ip -netns ns2 address add 192.0.2.1/24 dev veth2
+	$IP link set dev veth1 up
+	ip -netns ns2 link set dev veth2 up
+
 	$IP link set dev lo address 52:54:00:6a:c7:5e
-	$IP link set dummy0 address 52:54:00:6a:c7:5e
-	$IP link add dummy1 type dummy
-	$IP link set dummy1 address 52:54:00:6a:c7:5e
-	$IP link set dev dummy1 up
+	$IP link set dev veth1 address 52:54:00:6a:c7:5e
+	ip -netns ns2 link set dev lo address 52:54:00:6a:c7:5e
+	ip -netns ns2 link set dev veth2 address 52:54:00:6a:c7:5e
+
+	# 1. (ns2) redirect lo's egress to veth2's egress
+	ip netns exec ns2 tc qdisc add dev lo parent root handle 1: fq_codel
+	ip netns exec ns2 tc filter add dev lo parent 1: protocol arp basic \
+		action mirred egress redirect dev veth2
+	ip netns exec ns2 tc filter add dev lo parent 1: protocol ip basic \
+		action mirred egress redirect dev veth2
+
+	# 2. (ns1) redirect veth1's ingress to lo's ingress
+	$NS_EXEC tc qdisc add dev veth1 ingress
+	$NS_EXEC tc filter add dev veth1 ingress protocol arp basic \
+		action mirred ingress redirect dev lo
+	$NS_EXEC tc filter add dev veth1 ingress protocol ip basic \
+		action mirred ingress redirect dev lo
+
+	# 3. (ns1) redirect lo's egress to veth1's egress
+	$NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel
+	$NS_EXEC tc filter add dev lo parent 1: protocol arp basic \
+		action mirred egress redirect dev veth1
+	$NS_EXEC tc filter add dev lo parent 1: protocol ip basic \
+		action mirred egress redirect dev veth1
+
+	# 4. (ns2) redirect veth2's ingress to lo's ingress
+	ip netns exec ns2 tc qdisc add dev veth2 ingress
+	ip netns exec ns2 tc filter add dev veth2 ingress protocol arp basic \
+		action mirred ingress redirect dev lo
+	ip netns exec ns2 tc filter add dev veth2 ingress protocol ip basic \
+		action mirred ingress redirect dev lo
+
 	$NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1
 	$NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1
 	$NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1
-
-	$NS_EXEC tc qd add dev dummy1 parent root handle 1: fq_codel
-	$NS_EXEC tc filter add dev dummy1 parent 1: protocol arp basic action mirred egress redirect dev lo
-	$NS_EXEC tc filter add dev dummy1 parent 1: protocol ip basic action mirred egress redirect dev lo
+	ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1
+	ip netns exec ns2 sysctl -qw net.ipv4.conf.all.accept_local=1
+	ip netns exec ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1
 	set +e
 
-	run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 198.51.100.1"
+	run_cmd "ip netns exec ns2 ping -w1 -c1 192.0.2.1"
 	log_test $? 0 "rp_filter passes local packets"
 
-	run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 127.0.0.1"
+	run_cmd "ip netns exec ns2 ping -w1 -c1 127.0.0.1"
 	log_test $? 0 "rp_filter passes loopback packets"
 
 	cleanup
-- 
GitLab


From 7193ad3e50e596ac2192531c58ba83b9e6d2444b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 9 Dec 2021 18:59:27 +0100
Subject: [PATCH 2193/4878] USB: gadget: detect too-big endpoint 0 requests

commit 153a2d7e3350cc89d406ba2d35be8793a64c2038 upstream.

Sometimes USB hosts can ask for buffers that are too large from endpoint
0, which should not be allowed.  If this happens for OUT requests, stall
the endpoint, but for IN requests, trim the request size to the endpoint
buffer size.

Co-developed-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/composite.c    | 12 ++++++++++++
 drivers/usb/gadget/legacy/dbgp.c  | 13 +++++++++++++
 drivers/usb/gadget/legacy/inode.c | 16 +++++++++++++++-
 3 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 3ffa939678d77..eda0cfe35e613 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1648,6 +1648,18 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 	struct usb_function		*f = NULL;
 	u8				endp;
 
+	if (w_length > USB_COMP_EP0_BUFSIZ) {
+		if (ctrl->bRequestType == USB_DIR_OUT) {
+			goto done;
+		} else {
+			/* Cast away the const, we are going to overwrite on purpose. */
+			__le16 *temp = (__le16 *)&ctrl->wLength;
+
+			*temp = cpu_to_le16(USB_COMP_EP0_BUFSIZ);
+			w_length = USB_COMP_EP0_BUFSIZ;
+		}
+	}
+
 	/* partial re-init of the response message; the function or the
 	 * gadget might need to intercept e.g. a control-OUT completion
 	 * when we delegate to it.
diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c
index e1d566c9918ae..e567afcb2794c 100644
--- a/drivers/usb/gadget/legacy/dbgp.c
+++ b/drivers/usb/gadget/legacy/dbgp.c
@@ -345,6 +345,19 @@ static int dbgp_setup(struct usb_gadget *gadget,
 	void *data = NULL;
 	u16 len = 0;
 
+	if (length > DBGP_REQ_LEN) {
+		if (ctrl->bRequestType == USB_DIR_OUT) {
+			return err;
+		} else {
+			/* Cast away the const, we are going to overwrite on purpose. */
+			__le16 *temp = (__le16 *)&ctrl->wLength;
+
+			*temp = cpu_to_le16(DBGP_REQ_LEN);
+			length = DBGP_REQ_LEN;
+		}
+	}
+
+
 	if (request == USB_REQ_GET_DESCRIPTOR) {
 		switch (value>>8) {
 		case USB_DT_DEVICE:
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 71e7d10dd76b9..04b9c4f5f129d 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -110,6 +110,8 @@ enum ep0_state {
 /* enough for the whole queue: most events invalidate others */
 #define	N_EVENT			5
 
+#define RBUF_SIZE		256
+
 struct dev_data {
 	spinlock_t			lock;
 	refcount_t			count;
@@ -144,7 +146,7 @@ struct dev_data {
 	struct dentry			*dentry;
 
 	/* except this scratch i/o buffer for ep0 */
-	u8				rbuf [256];
+	u8				rbuf[RBUF_SIZE];
 };
 
 static inline void get_dev (struct dev_data *data)
@@ -1333,6 +1335,18 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 	u16				w_value = le16_to_cpu(ctrl->wValue);
 	u16				w_length = le16_to_cpu(ctrl->wLength);
 
+	if (w_length > RBUF_SIZE) {
+		if (ctrl->bRequestType == USB_DIR_OUT) {
+			return value;
+		} else {
+			/* Cast away the const, we are going to overwrite on purpose. */
+			__le16 *temp = (__le16 *)&ctrl->wLength;
+
+			*temp = cpu_to_le16(RBUF_SIZE);
+			w_length = RBUF_SIZE;
+		}
+	}
+
 	spin_lock (&dev->lock);
 	dev->setup_abort = 0;
 	if (dev->state == STATE_DEV_UNCONNECTED) {
-- 
GitLab


From e4de8ca013f06ad4a0bf40420a291c23990e4131 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 9 Dec 2021 19:02:15 +0100
Subject: [PATCH 2194/4878] USB: gadget: zero allocate endpoint 0 buffers

commit 86ebbc11bb3f60908a51f3e41a17e3f477c2eaa3 upstream.

Under some conditions, USB gadget devices can show allocated buffer
contents to a host.  Fix this up by zero-allocating them so that any
extra data will all just be zeros.

Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/composite.c   | 2 +-
 drivers/usb/gadget/legacy/dbgp.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index eda0cfe35e613..426132988512d 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -2173,7 +2173,7 @@ int composite_dev_prepare(struct usb_composite_driver *composite,
 	if (!cdev->req)
 		return -ENOMEM;
 
-	cdev->req->buf = kmalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL);
+	cdev->req->buf = kzalloc(USB_COMP_EP0_BUFSIZ, GFP_KERNEL);
 	if (!cdev->req->buf)
 		goto fail;
 
diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c
index e567afcb2794c..355bc7dab9d5f 100644
--- a/drivers/usb/gadget/legacy/dbgp.c
+++ b/drivers/usb/gadget/legacy/dbgp.c
@@ -137,7 +137,7 @@ static int dbgp_enable_ep_req(struct usb_ep *ep)
 		goto fail_1;
 	}
 
-	req->buf = kmalloc(DBGP_REQ_LEN, GFP_KERNEL);
+	req->buf = kzalloc(DBGP_REQ_LEN, GFP_KERNEL);
 	if (!req->buf) {
 		err = -ENOMEM;
 		stp = 2;
-- 
GitLab


From ef284f086dd07451bef391fc0a7f47a24b3b9e02 Mon Sep 17 00:00:00 2001
From: Pavel Hofman <pavel.hofman@ivitera.com>
Date: Fri, 10 Dec 2021 09:52:18 +0100
Subject: [PATCH 2195/4878] usb: core: config: fix validation of
 wMaxPacketValue entries

commit 1a3910c80966e4a76b25ce812f6bea0ef1b1d530 upstream.

The checks performed by commit aed9d65ac327 ("USB: validate
wMaxPacketValue entries in endpoint descriptors") require that initial
value of the maxp variable contains both maximum packet size bits
(10..0) and multiple-transactions bits (12..11). However, the existing
code assings only the maximum packet size bits. This patch assigns all
bits of wMaxPacketSize to the variable.

Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 562a730befdac..f65a269858ea8 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -406,7 +406,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno,
 	 * the USB-2 spec requires such endpoints to have wMaxPacketSize = 0
 	 * (see the end of section 5.6.3), so don't warn about them.
 	 */
-	maxp = usb_endpoint_maxp(&endpoint->desc);
+	maxp = le16_to_cpu(endpoint->desc.wMaxPacketSize);
 	if (maxp == 0 && !(usb_endpoint_xfer_isoc(d) && asnum == 0)) {
 		dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid wMaxPacketSize 0\n",
 		    cfgno, inum, asnum, d->bEndpointAddress);
-- 
GitLab


From 74b6a6a239aa1a823f8bc00eb80851df9777ae29 Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
Date: Fri, 10 Dec 2021 16:17:34 +0200
Subject: [PATCH 2196/4878] xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent
 xHCI from runtime suspending

commit 811ae81320da53a5670c36970cefacca8519f90e upstream.

When the xHCI is quirked with XHCI_RESET_ON_RESUME, runtime resume
routine also resets the controller.

This is bad for USB drivers without reset_resume callback, because
there's no subsequent call of usb_dev_complete() ->
usb_resume_complete() to force rebinding the driver to the device. For
instance, btusb device stops working after xHCI controller is runtime
resumed, if the controlled is quirked with XHCI_RESET_ON_RESUME.

So always take XHCI_RESET_ON_RESUME into account to solve the issue.

Cc: <stable@vger.kernel.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211210141735.1384209-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index bf42ba3e4415a..1e6f28369e77d 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3893,7 +3893,6 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	struct xhci_slot_ctx *slot_ctx;
 	int i, ret;
 
-#ifndef CONFIG_USB_DEFAULT_PERSIST
 	/*
 	 * We called pm_runtime_get_noresume when the device was attached.
 	 * Decrement the counter here to allow controller to runtime suspend
@@ -3901,7 +3900,6 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	 */
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		pm_runtime_put_noidle(hcd->self.controller);
-#endif
 
 	ret = xhci_check_args(hcd, udev, NULL, 0, true, __func__);
 	/* If the host is halted due to driver unload, we still need to free the
@@ -4053,14 +4051,12 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 
 	xhci_debugfs_create_slot(xhci, slot_id);
 
-#ifndef CONFIG_USB_DEFAULT_PERSIST
 	/*
 	 * If resetting upon resume, we can't put the controller into runtime
 	 * suspend if there is a device attached.
 	 */
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		pm_runtime_get_noresume(hcd->self.controller);
-#endif
 
 	/* Is this a LS or FS device under a HS hub? */
 	/* Hub or peripherial? */
-- 
GitLab


From 1b43c9b65f6b506759092e542eb9fe055d7c9a08 Mon Sep 17 00:00:00 2001
From: Pavel Hofman <pavel.hofman@ivitera.com>
Date: Fri, 10 Dec 2021 09:52:19 +0100
Subject: [PATCH 2197/4878] usb: core: config: using bit mask instead of
 individual bits

commit ca5737396927afd4d57b133fd2874bbcf3421cdb upstream.

Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for
extracting multiple-transactions bits from wMaxPacketSize value.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/config.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index f65a269858ea8..39f1eca60a714 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -422,9 +422,9 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno,
 		maxpacket_maxes = full_speed_maxpacket_maxes;
 		break;
 	case USB_SPEED_HIGH:
-		/* Bits 12..11 are allowed only for HS periodic endpoints */
+		/* Multiple-transactions bits are allowed only for HS periodic endpoints */
 		if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) {
-			i = maxp & (BIT(12) | BIT(11));
+			i = maxp & USB_EP_MAXP_MULT_MASK;
 			maxp &= ~i;
 		}
 		fallthrough;
-- 
GitLab


From fee8be5bde562d4f5f9a100ca80c6d7072ed34c8 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Fri, 10 Dec 2021 16:17:35 +0200
Subject: [PATCH 2198/4878] xhci: avoid race between disable slot command and
 host runtime suspend

commit 7faac1953ed1f658f719cdf7bb7303fa5eef822c upstream.

Make xhci_disable_slot() synchronous, thus ensuring it, and
xhci_free_dev() calling it return after xHC controller completes
the disable slot command.

Otherwise the roothub and xHC host may runtime suspend, and clear the
command ring while the disable slot command is being processed.

This causes a command completion mismatch as the completion event can't
be mapped to the correct command.
Command ring gets out of sync and commands time out.
Driver finally assumes host is unresponsive and bails out.

usb 2-4: USB disconnect, device number 10
xhci_hcd 0000:00:0d.0: ERROR mismatched command completion event
...
xhci_hcd 0000:00:0d.0: xHCI host controller not responding, assume dead
xhci_hcd 0000:00:0d.0: HC died; cleaning up

Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211210141735.1384209-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-hub.c  |  1 +
 drivers/usb/host/xhci-ring.c |  1 -
 drivers/usb/host/xhci.c      | 22 +++++++++++++++-------
 3 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 41d5a46c1dc1a..71b018e9a5735 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -631,6 +631,7 @@ static int xhci_enter_test_mode(struct xhci_hcd *xhci,
 			continue;
 
 		retval = xhci_disable_slot(xhci, i);
+		xhci_free_virt_device(xhci, i);
 		if (retval)
 			xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n",
 				 i, retval);
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 667a37f509828..76389c0dda8bc 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1298,7 +1298,6 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id)
 	if (xhci->quirks & XHCI_EP_LIMIT_QUIRK)
 		/* Delete default control endpoint resources */
 		xhci_free_device_endpoint_resources(xhci, virt_dev, true);
-	xhci_free_virt_device(xhci, slot_id);
 }
 
 static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id,
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1e6f28369e77d..325eb1609f8c5 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3918,9 +3918,8 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 		del_timer_sync(&virt_dev->eps[i].stop_cmd_timer);
 	}
 	virt_dev->udev = NULL;
-	ret = xhci_disable_slot(xhci, udev->slot_id);
-	if (ret)
-		xhci_free_virt_device(xhci, udev->slot_id);
+	xhci_disable_slot(xhci, udev->slot_id);
+	xhci_free_virt_device(xhci, udev->slot_id);
 }
 
 int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id)
@@ -3930,7 +3929,7 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id)
 	u32 state;
 	int ret = 0;
 
-	command = xhci_alloc_command(xhci, false, GFP_KERNEL);
+	command = xhci_alloc_command(xhci, true, GFP_KERNEL);
 	if (!command)
 		return -ENOMEM;
 
@@ -3955,6 +3954,15 @@ int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id)
 	}
 	xhci_ring_cmd_db(xhci);
 	spin_unlock_irqrestore(&xhci->lock, flags);
+
+	wait_for_completion(command->completion);
+
+	if (command->status != COMP_SUCCESS)
+		xhci_warn(xhci, "Unsuccessful disable slot %u command, status %d\n",
+			  slot_id, command->status);
+
+	xhci_free_command(xhci, command);
+
 	return ret;
 }
 
@@ -4063,9 +4071,8 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	return 1;
 
 disable_slot:
-	ret = xhci_disable_slot(xhci, udev->slot_id);
-	if (ret)
-		xhci_free_virt_device(xhci, udev->slot_id);
+	xhci_disable_slot(xhci, udev->slot_id);
+	xhci_free_virt_device(xhci, udev->slot_id);
 
 	return 0;
 }
@@ -4195,6 +4202,7 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
 
 		mutex_unlock(&xhci->mutex);
 		ret = xhci_disable_slot(xhci, udev->slot_id);
+		xhci_free_virt_device(xhci, udev->slot_id);
 		if (!ret)
 			xhci_alloc_dev(hcd, udev);
 		kfree(command->completion);
-- 
GitLab


From cbc04c0c9a67b8039a3b14d63c67067e6224dc76 Mon Sep 17 00:00:00 2001
From: Kister Genesis Jimenez <kister.jimenez@analog.com>
Date: Mon, 15 Nov 2021 11:41:47 +0100
Subject: [PATCH 2199/4878] iio: gyro: adxrs290: fix data signedness
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit fde272e78e004a45c7e4976876277d7e6a5a0ede upstream.

Properly sign-extend the rate and temperature data.

Fixes: 2c8920fff1457 ("iio: gyro: Add driver support for ADXRS290")
Signed-off-by: Kister Genesis Jimenez <kister.jimenez@analog.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211115104147.18669-1-nuno.sa@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/gyro/adxrs290.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c
index ca6fc234076ee..c7f9963391558 100644
--- a/drivers/iio/gyro/adxrs290.c
+++ b/drivers/iio/gyro/adxrs290.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -124,7 +125,7 @@ static int adxrs290_get_rate_data(struct iio_dev *indio_dev, const u8 cmd, int *
 		goto err_unlock;
 	}
 
-	*val = temp;
+	*val = sign_extend32(temp, 15);
 
 err_unlock:
 	mutex_unlock(&st->lock);
@@ -146,7 +147,7 @@ static int adxrs290_get_temp_data(struct iio_dev *indio_dev, int *val)
 	}
 
 	/* extract lower 12 bits temperature reading */
-	*val = temp & 0x0FFF;
+	*val = sign_extend32(temp, 11);
 
 err_unlock:
 	mutex_unlock(&st->lock);
-- 
GitLab


From 5de9c5b13062e626c9f989d531f433a28d8c66b4 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 24 Oct 2021 11:27:00 +0200
Subject: [PATCH 2200/4878] iio: trigger: Fix reference counting
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit a827a4984664308f13599a0b26c77018176d0c7c upstream.

In viio_trigger_alloc() device_initialize() is used to set the initial
reference count of the trigger to 1. Then another get_device() is called on
trigger. This sets the reference count to 2 before the trigger is returned.

iio_trigger_free(), which is the matching API to viio_trigger_alloc(),
calls put_device() which decreases the reference count by 1. But the second
reference count acquired in viio_trigger_alloc() is never dropped.

As a result the iio_trigger_release() function is never called and the
memory associated with the trigger is never freed.

Since there is no reason for the trigger to start its lifetime with two
reference counts just remove the extra get_device() in
viio_trigger_alloc().

Fixes: 5f9c035cae18 ("staging:iio:triggers. Add a reference get to the core for triggers.")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20211024092700.6844-2-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/industrialio-trigger.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 583bb51f65a75..6bcc562d7857b 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -550,7 +550,6 @@ struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs)
 		irq_modify_status(trig->subirq_base + i,
 				  IRQ_NOREQUEST | IRQ_NOAUTOEN, IRQ_NOPROBE);
 	}
-	get_device(&trig->dev);
 
 	return trig;
 
-- 
GitLab


From 5c4a0f307f2bd64b63f2316ab386f7a58d1a3deb Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Thu, 25 Nov 2021 18:28:48 +0000
Subject: [PATCH 2201/4878] iio: trigger: stm32-timer: fix MODULE_ALIAS

commit 893621e0606747c5bbefcaf2794d12c7aa6212b7 upstream.

modprobe can't handle spaces in aliases.

Fixes: 93fbe91b5521 ("iio: Add STM32 timer trigger driver")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20211125182850.2645424-1-hi@alyssa.is
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/trigger/stm32-timer-trigger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 3aa9e8bba005f..e38671b41df74 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -912,6 +912,6 @@ static struct platform_driver stm32_timer_trigger_driver = {
 };
 module_platform_driver(stm32_timer_trigger_driver);
 
-MODULE_ALIAS("platform: stm32-timer-trigger");
+MODULE_ALIAS("platform:stm32-timer-trigger");
 MODULE_DESCRIPTION("STMicroelectronics STM32 Timer Trigger driver");
 MODULE_LICENSE("GPL v2");
-- 
GitLab


From 4e785291108450d462fd6989cd5090f1bb8f81b7 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 24 Oct 2021 19:12:51 +0200
Subject: [PATCH 2202/4878] iio: stk3310: Don't return error code in interrupt
 handler

commit 8e1eeca5afa7ba84d885987165dbdc5decf15413 upstream.

Interrupt handlers must return one of the irqreturn_t values. Returning a
error code is not supported.

The stk3310 event interrupt handler returns an error code when reading the
flags register fails.

Fix the implementation to always return an irqreturn_t value.

Fixes: 3dd477acbdd1 ("iio: light: Add threshold interrupt support for STK3310")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211024171251.22896-3-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/light/stk3310.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index a2827d03ab0fb..6654573a887c9 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -546,9 +546,8 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private)
 	mutex_lock(&data->lock);
 	ret = regmap_field_read(data->reg_flag_nf, &dir);
 	if (ret < 0) {
-		dev_err(&data->client->dev, "register read failed\n");
-		mutex_unlock(&data->lock);
-		return ret;
+		dev_err(&data->client->dev, "register read failed: %d\n", ret);
+		goto out;
 	}
 	event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1,
 				     IIO_EV_TYPE_THRESH,
@@ -560,6 +559,7 @@ static irqreturn_t stk3310_irq_event_handler(int irq, void *private)
 	ret = regmap_field_write(data->reg_flag_psint, 0);
 	if (ret < 0)
 		dev_err(&data->client->dev, "failed to reset interrupts\n");
+out:
 	mutex_unlock(&data->lock);
 
 	return IRQ_HANDLED;
-- 
GitLab


From db12d95085367de8b0223929d1332731024441f1 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 24 Oct 2021 11:26:59 +0200
Subject: [PATCH 2203/4878] iio: mma8452: Fix trigger reference couting

commit cd0082235783f814241a1c9483fb89e405f4f892 upstream.

The mma8452 driver directly assigns a trigger to the struct iio_dev. The
IIO core when done using this trigger will call `iio_trigger_put()` to drop
the reference count by 1.

Without the matching `iio_trigger_get()` in the driver the reference count
can reach 0 too early, the trigger gets freed while still in use and a
use-after-free occurs.

Fix this by getting a reference to the trigger before assigning it to the
IIO device.

Fixes: ae6d9ce05691 ("iio: mma8452: Add support for interrupt driven triggers.")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211024092700.6844-1-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/accel/mma8452.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index bf1d2c8afdbd7..a7208704d31c9 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1473,7 +1473,7 @@ static int mma8452_trigger_setup(struct iio_dev *indio_dev)
 	if (ret)
 		return ret;
 
-	indio_dev->trig = trig;
+	indio_dev->trig = iio_trigger_get(trig);
 
 	return 0;
 }
-- 
GitLab


From 28ea539a311e39dc07db9579cec5d10b84a5491b Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 24 Oct 2021 19:12:49 +0200
Subject: [PATCH 2204/4878] iio: ltr501: Don't return error code in trigger
 handler

commit ef9d67fa72c1b149a420587e435a3e888bdbf74f upstream.

IIO trigger handlers need to return one of the irqreturn_t values.
Returning an error code is not supported.

The ltr501 interrupt handler gets this right for most error paths, but
there is one case where it returns the error code.

In addition for this particular case the trigger handler does not call
`iio_trigger_notify_done()`. Which when not done keeps the triggered
disabled forever.

Modify the code so that the function returns a valid irqreturn_t value as
well as calling `iio_trigger_notify_done()` on all exit paths.

Fixes: 2690be905123 ("iio: Add Lite-On ltr501 ambient light / proximity sensor driver")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211024171251.22896-1-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/light/ltr501.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 74ed2d88a3ed3..379236a806fac 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1273,7 +1273,7 @@ static irqreturn_t ltr501_trigger_handler(int irq, void *p)
 		ret = regmap_bulk_read(data->regmap, LTR501_ALS_DATA1,
 				       als_buf, sizeof(als_buf));
 		if (ret < 0)
-			return ret;
+			goto done;
 		if (test_bit(0, indio_dev->active_scan_mask))
 			scan.channels[j++] = le16_to_cpu(als_buf[1]);
 		if (test_bit(1, indio_dev->active_scan_mask))
-- 
GitLab


From bc4d8367ed0d1478bfb56bcc387f7e1c82c3a003 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 24 Oct 2021 19:12:50 +0200
Subject: [PATCH 2205/4878] iio: kxsd9: Don't return error code in trigger
 handler

commit 45febe0d63917ee908198c5be08511c64ee1790a upstream.

IIO trigger handlers need to return one of the irqreturn_t values.
Returning an error code is not supported.

The kxsd9 interrupt handler returns an error code if reading the data
registers fails. In addition when exiting due to an error the trigger
handler does not call `iio_trigger_notify_done()`. Which when not done
keeps the triggered disabled forever.

Modify the code so that the function returns a valid irqreturn_t value as
well as calling `iio_trigger_notify_done()` on all exit paths.

Since we can't return the error code make sure to at least log it as part
of the error message.

Fixes: 0427a106a98a ("iio: accel: kxsd9: Add triggered buffer handling")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211024171251.22896-2-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/accel/kxsd9.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
index 0e18b92e20992..a51568ba8b7d2 100644
--- a/drivers/iio/accel/kxsd9.c
+++ b/drivers/iio/accel/kxsd9.c
@@ -224,14 +224,14 @@ static irqreturn_t kxsd9_trigger_handler(int irq, void *p)
 			       hw_values.chan,
 			       sizeof(hw_values.chan));
 	if (ret) {
-		dev_err(st->dev,
-			"error reading data\n");
-		return ret;
+		dev_err(st->dev, "error reading data: %d\n", ret);
+		goto out;
 	}
 
 	iio_push_to_buffers_with_timestamp(indio_dev,
 					   &hw_values,
 					   iio_get_time_ns(indio_dev));
+out:
 	iio_trigger_notify_done(indio_dev->trig);
 
 	return IRQ_HANDLED;
-- 
GitLab


From 416383999c66e5171c4ae3e434289fd62fc1d4d9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 1 Nov 2021 15:40:54 +0100
Subject: [PATCH 2206/4878] iio: itg3200: Call iio_trigger_notify_done() on
 error

commit 67fe29583e72b2103abb661bb58036e3c1f00277 upstream.

IIO trigger handlers must call iio_trigger_notify_done() when done. This
must be done even when an error occurred. Otherwise the trigger will be
seen as busy indefinitely and the trigger handler will never be called
again.

The itg3200 driver neglects to call iio_trigger_notify_done() when there is
an error reading the gyro data. Fix this by making sure that
iio_trigger_notify_done() is included in the error exit path.

Fixes: 9dbf091da080 ("iio: gyro: Add itg3200")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211101144055.13858-1-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/gyro/itg3200_buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index 1c3c1bd53374a..98b3f021f0bec 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -61,9 +61,9 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p)
 
 	iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp);
 
+error_ret:
 	iio_trigger_notify_done(indio_dev->trig);
 
-error_ret:
 	return IRQ_HANDLED;
 }
 
-- 
GitLab


From 69ae78c1abe7a968743996f86d6581d278c16c85 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Mon, 18 Oct 2021 13:37:31 +0200
Subject: [PATCH 2207/4878] iio: dln2-adc: Fix lockdep complaint
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 59f92868176f191eefde70d284bdfc1ed76a84bc upstream.

When reading the voltage:

$ cat /sys/bus/iio/devices/iio\:device0/in_voltage0_raw

Lockdep complains:

[  153.910616] ======================================================
[  153.916918] WARNING: possible circular locking dependency detected
[  153.923221] 5.14.0+ #5 Not tainted
[  153.926692] ------------------------------------------------------
[  153.932992] cat/717 is trying to acquire lock:
[  153.937525] c2585358 (&indio_dev->mlock){+.+.}-{3:3}, at: iio_device_claim_direct_mode+0x28/0x44
[  153.946541]
               but task is already holding lock:
[  153.952487] c2585860 (&dln2->mutex){+.+.}-{3:3}, at: dln2_adc_read_raw+0x94/0x2bc [dln2_adc]
[  153.961152]
               which lock already depends on the new lock.

Fix this by not calling into the iio core underneath the dln2->mutex lock.

Fixes: 7c0299e879dd ("iio: adc: Add support for DLN2 ADC")
Cc: Jack Andersen <jackoalan@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://lore.kernel.org/r/20211018113731.25723-1-noralf@tronnes.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/dln2-adc.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c
index 0d53ef18e0459..b9811e8561245 100644
--- a/drivers/iio/adc/dln2-adc.c
+++ b/drivers/iio/adc/dln2-adc.c
@@ -248,7 +248,6 @@ static int dln2_adc_set_chan_period(struct dln2_adc *dln2,
 static int dln2_adc_read(struct dln2_adc *dln2, unsigned int channel)
 {
 	int ret, i;
-	struct iio_dev *indio_dev = platform_get_drvdata(dln2->pdev);
 	u16 conflict;
 	__le16 value;
 	int olen = sizeof(value);
@@ -257,13 +256,9 @@ static int dln2_adc_read(struct dln2_adc *dln2, unsigned int channel)
 		.chan = channel,
 	};
 
-	ret = iio_device_claim_direct_mode(indio_dev);
-	if (ret < 0)
-		return ret;
-
 	ret = dln2_adc_set_chan_enabled(dln2, channel, true);
 	if (ret < 0)
-		goto release_direct;
+		return ret;
 
 	ret = dln2_adc_set_port_enabled(dln2, true, &conflict);
 	if (ret < 0) {
@@ -300,8 +295,6 @@ disable_port:
 	dln2_adc_set_port_enabled(dln2, false, NULL);
 disable_chan:
 	dln2_adc_set_chan_enabled(dln2, channel, false);
-release_direct:
-	iio_device_release_direct_mode(indio_dev);
 
 	return ret;
 }
@@ -337,10 +330,16 @@ static int dln2_adc_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (ret < 0)
+			return ret;
+
 		mutex_lock(&dln2->mutex);
 		ret = dln2_adc_read(dln2, chan->channel);
 		mutex_unlock(&dln2->mutex);
 
+		iio_device_release_direct_mode(indio_dev);
+
 		if (ret < 0)
 			return ret;
 
-- 
GitLab


From a2545b147d232122b5b9164dc23f277662f8fc71 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 1 Nov 2021 14:30:43 +0100
Subject: [PATCH 2208/4878] iio: dln2: Check return value of
 devm_iio_trigger_register()

commit 90751fb9f224e0e1555b49a8aa9e68f6537e4cec upstream.

Registering a trigger can fail and the return value of
devm_iio_trigger_register() must be checked. Otherwise undefined behavior
can occur when the trigger is used.

Fixes: 7c0299e879dd ("iio: adc: Add support for DLN2 ADC")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211101133043.6974-1-lars@metafoo.de
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/dln2-adc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c
index b9811e8561245..58b3f6065db0d 100644
--- a/drivers/iio/adc/dln2-adc.c
+++ b/drivers/iio/adc/dln2-adc.c
@@ -654,7 +654,11 @@ static int dln2_adc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	iio_trigger_set_drvdata(dln2->trig, dln2);
-	devm_iio_trigger_register(dev, dln2->trig);
+	ret = devm_iio_trigger_register(dev, dln2->trig);
+	if (ret) {
+		dev_err(dev, "failed to register trigger: %d\n", ret);
+		return ret;
+	}
 	iio_trigger_set_immutable(indio_dev, dln2->trig);
 
 	ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL,
-- 
GitLab


From fff92f3712d771103ca967dc8cb1180e5a48078a Mon Sep 17 00:00:00 2001
From: Gwendal Grignou <gwendal@chromium.org>
Date: Thu, 4 Nov 2021 01:24:08 -0700
Subject: [PATCH 2209/4878] iio: at91-sama5d2: Fix incorrect sign extension

commit 652e7df485c6884d552085ae2c73efa6cfea3547 upstream.

Use scan_type when processing raw data which also fixes that the sign
extension was from the wrong bit.

Use channel definition as root of trust and replace constant
when reading elements directly using the raw sysfs attributes.

Fixes: 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution")
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Eugen Hristev <eugen.hristev@microchip.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211104082413.3681212-9-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/at91-sama5d2_adc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index b8139c435a4b0..4ede7e766765e 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -1401,7 +1401,8 @@ static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		*val = st->conversion_value;
 		ret = at91_adc_adjust_val_osr(st, val);
 		if (chan->scan_type.sign == 's')
-			*val = sign_extend32(*val, 11);
+			*val = sign_extend32(*val,
+					     chan->scan_type.realbits - 1);
 		st->conversion_done = false;
 	}
 
-- 
GitLab


From af7fbb8c0b5438494ef5f6474011aebbb42ee00c Mon Sep 17 00:00:00 2001
From: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Date: Fri, 22 Oct 2021 14:19:29 +0200
Subject: [PATCH 2210/4878] iio: adc: stm32: fix a current leak by resetting
 pcsel before disabling vdda

commit f711f28e71e965c0d1141c830fa7131b41abbe75 upstream.

Some I/Os are connected to ADC input channels, when the corresponding bit
in PCSEL register are set on STM32H7 and STM32MP15. This is done in the
prepare routine of stm32-adc driver.
There are constraints here, as PCSEL shouldn't be set when VDDA supply
is disabled. Enabling/disabling of VDDA supply in done via stm32-adc-core
runtime PM routines (before/after ADC is enabled/disabled).

Currently, PCSEL remains set when disabling ADC. Later on, PM runtime
can disable the VDDA supply. This creates some conditions on I/Os that
can start to leak current.
So PCSEL needs to be cleared when disabling the ADC.

Fixes: 95e339b6e85d ("iio: adc: stm32: add support for STM32H7")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Reviewed-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/1634905169-23762-1-git-send-email-fabrice.gasnier@foss.st.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/stm32-adc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index 16c02c30dec75..9939dee017433 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -979,6 +979,7 @@ static void stm32h7_adc_unprepare(struct iio_dev *indio_dev)
 {
 	struct stm32_adc *adc = iio_priv(indio_dev);
 
+	stm32_adc_writel(adc, STM32H7_ADC_PCSEL, 0);
 	stm32h7_adc_disable(indio_dev);
 	stm32h7_adc_enter_pwr_down(adc);
 }
-- 
GitLab


From 0f86c9e818e74397de23eca01afe812a94d5deb7 Mon Sep 17 00:00:00 2001
From: Evgeny Boger <boger@wirenboard.com>
Date: Wed, 17 Nov 2021 00:37:46 +0300
Subject: [PATCH 2211/4878] iio: adc: axp20x_adc: fix charging current
 reporting on AXP22x

commit 92beafb76a31bdc02649eb44e93a8e4f4cfcdbe8 upstream.

Both the charging and discharging currents on AXP22x are stored as
12-bit integers, in accordance with the datasheet.
It's also confirmed by vendor BSP (axp20x_adc.c:axp22_icharge_to_mA).

The scale factor of 0.5 is never mentioned in datasheet, nor in the
vendor source code. I think it was here to compensate for
erroneous addition bit in register width.

Tested on custom A40i+AXP221s board with external ammeter as
a reference.

Fixes: 0e34d5de961d ("iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs")
Signed-off-by: Evgeny Boger <boger@wirenboard.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20211116213746.264378-1-boger@wirenboard.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/axp20x_adc.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
index 3e0c0233b4315..df99f1365c398 100644
--- a/drivers/iio/adc/axp20x_adc.c
+++ b/drivers/iio/adc/axp20x_adc.c
@@ -251,19 +251,8 @@ static int axp22x_adc_raw(struct iio_dev *indio_dev,
 			  struct iio_chan_spec const *chan, int *val)
 {
 	struct axp20x_adc_iio *info = iio_priv(indio_dev);
-	int size;
 
-	/*
-	 * N.B.: Unlike the Chinese datasheets tell, the charging current is
-	 * stored on 12 bits, not 13 bits. Only discharging current is on 13
-	 * bits.
-	 */
-	if (chan->type == IIO_CURRENT && chan->channel == AXP22X_BATT_DISCHRG_I)
-		size = 13;
-	else
-		size = 12;
-
-	*val = axp20x_read_variable_width(info->regmap, chan->address, size);
+	*val = axp20x_read_variable_width(info->regmap, chan->address, 12);
 	if (*val < 0)
 		return *val;
 
@@ -386,9 +375,8 @@ static int axp22x_adc_scale(struct iio_chan_spec const *chan, int *val,
 		return IIO_VAL_INT_PLUS_MICRO;
 
 	case IIO_CURRENT:
-		*val = 0;
-		*val2 = 500000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = 1;
+		return IIO_VAL_INT;
 
 	case IIO_TEMP:
 		*val = 100;
-- 
GitLab


From c10c53419d8d723aa575f1ebbf5ce492b15e31fc Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 1 Nov 2021 15:40:55 +0100
Subject: [PATCH 2212/4878] iio: ad7768-1: Call iio_trigger_notify_done() on
 error

commit 6661146427cbbce6d1fe3dbb11ff1c487f55799a upstream.

IIO trigger handlers must call iio_trigger_notify_done() when done. This
must be done even when an error occurred. Otherwise the trigger will be
seen as busy indefinitely and the trigger handler will never be called
again.

The ad7768-1 driver neglects to call iio_trigger_notify_done() when there
is an error reading the converter data. Fix this by making sure that
iio_trigger_notify_done() is included in the error exit path.

Fixes: a5f8c7da3dbe ("iio: adc: Add AD7768-1 ADC basic support")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211101144055.13858-2-lars@metafoo.de
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ad7768-1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7768-1.c b/drivers/iio/adc/ad7768-1.c
index c7e15c45140ad..4afa50e5c058a 100644
--- a/drivers/iio/adc/ad7768-1.c
+++ b/drivers/iio/adc/ad7768-1.c
@@ -470,8 +470,8 @@ static irqreturn_t ad7768_trigger_handler(int irq, void *p)
 	iio_push_to_buffers_with_timestamp(indio_dev, &st->data.scan,
 					   iio_get_time_ns(indio_dev));
 
-	iio_trigger_notify_done(indio_dev->trig);
 err_unlock:
+	iio_trigger_notify_done(indio_dev->trig);
 	mutex_unlock(&st->lock);
 
 	return IRQ_HANDLED;
-- 
GitLab


From ee86d0bad80bdcd11a87e188a596727f41b62320 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Mon, 25 Oct 2021 20:41:59 +0800
Subject: [PATCH 2213/4878] iio: accel: kxcjk-1013: Fix possible memory leak in
 probe and remove

commit 70c9774e180d151abaab358108e3510a8e615215 upstream.

When ACPI type is ACPI_SMO8500, the data->dready_trig will not be set, the
memory allocated by iio_triggered_buffer_setup() will not be freed, and cause
memory leak as follows:

unreferenced object 0xffff888009551400 (size 512):
  comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (age 83.852s)
  hex dump (first 32 bytes):
    02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff  ........ .......
  backtrace:
    [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360
    [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf]
    [<000000004b40c1f5>] iio_triggered_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer]
    [<000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013]

Fix it by remove data->dready_trig condition in probe and remove.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: a25691c1f967 ("iio: accel: kxcjk1013: allow using an external trigger")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Cc: <Stable@vger.kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211025124159.2700301-1-yangyingliang@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/accel/kxcjk-1013.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index c99e90469a245..2eaf85b6e39f4 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1435,8 +1435,7 @@ static int kxcjk1013_probe(struct i2c_client *client,
 	return 0;
 
 err_buffer_cleanup:
-	if (data->dready_trig)
-		iio_triggered_buffer_cleanup(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
 	if (data->dready_trig)
 		iio_trigger_unregister(data->dready_trig);
@@ -1459,8 +1458,8 @@ static int kxcjk1013_remove(struct i2c_client *client)
 	pm_runtime_set_suspended(&client->dev);
 	pm_runtime_put_noidle(&client->dev);
 
+	iio_triggered_buffer_cleanup(indio_dev);
 	if (data->dready_trig) {
-		iio_triggered_buffer_cleanup(indio_dev);
 		iio_trigger_unregister(data->dready_trig);
 		iio_trigger_unregister(data->motion_trig);
 	}
-- 
GitLab


From 014c2fa5dc498acacb165c69ae1bb9f298e66e80 Mon Sep 17 00:00:00 2001
From: Kelly Devilliv <kelly.devilliv@gmail.com>
Date: Mon, 1 Nov 2021 23:05:02 +0800
Subject: [PATCH 2214/4878] csky: fix typo of fpu config macro

commit a0793fdad9a11a32bc6d21317c93c83f4aa82ebc upstream.

Fix typo which will cause fpe and privilege exception error.

Signed-off-by: Kelly Devilliv <kelly.devilliv@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/csky/kernel/traps.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/csky/kernel/traps.c b/arch/csky/kernel/traps.c
index 959a917c989d8..22721468a04b2 100644
--- a/arch/csky/kernel/traps.c
+++ b/arch/csky/kernel/traps.c
@@ -211,7 +211,7 @@ asmlinkage void do_trap_illinsn(struct pt_regs *regs)
 
 asmlinkage void do_trap_fpe(struct pt_regs *regs)
 {
-#ifdef CONFIG_CPU_HAS_FP
+#ifdef CONFIG_CPU_HAS_FPU
 	return fpu_fpe(regs);
 #else
 	do_trap_error(regs, SIGILL, ILL_ILLOPC, regs->pc,
@@ -221,7 +221,7 @@ asmlinkage void do_trap_fpe(struct pt_regs *regs)
 
 asmlinkage void do_trap_priv(struct pt_regs *regs)
 {
-#ifdef CONFIG_CPU_HAS_FP
+#ifdef CONFIG_CPU_HAS_FPU
 	if (user_mode(regs) && fpu_libc_helper(regs))
 		return;
 #endif
-- 
GitLab


From d530e9943d643da34df4ab64698896f1e25ff38b Mon Sep 17 00:00:00 2001
From: Billy Tsai <billy_tsai@aspeedtech.com>
Date: Wed, 24 Nov 2021 17:43:48 +0800
Subject: [PATCH 2215/4878] irqchip/aspeed-scu: Replace update_bits with
 write_bits.

commit 8958389681b929fcc7301e7dc5f0da12e4a256a0 upstream.

The interrupt status bits are cleared by writing 1, we should force a
write to clear the interrupt without checking if the value has changed.

Fixes: 04f605906ff0 ("irqchip: Add Aspeed SCU interrupt controller")
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211124094348.11621-1-billy_tsai@aspeedtech.com
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-aspeed-scu-ic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-aspeed-scu-ic.c b/drivers/irqchip/irq-aspeed-scu-ic.c
index c90a3346b9857..0f0aac7cc1140 100644
--- a/drivers/irqchip/irq-aspeed-scu-ic.c
+++ b/drivers/irqchip/irq-aspeed-scu-ic.c
@@ -78,8 +78,8 @@ static void aspeed_scu_ic_irq_handler(struct irq_desc *desc)
 				       bit - scu_ic->irq_shift);
 		generic_handle_irq(irq);
 
-		regmap_update_bits(scu_ic->scu, scu_ic->reg, mask,
-				   BIT(bit + ASPEED_SCU_IC_STATUS_SHIFT));
+		regmap_write_bits(scu_ic->scu, scu_ic->reg, mask,
+				  BIT(bit + ASPEED_SCU_IC_STATUS_SHIFT));
 	}
 
 	chained_irq_exit(chip, desc);
-- 
GitLab


From 8f3ed9deaaac4044d89ae62756f2c3c79985b631 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 25 Nov 2021 14:00:56 +0100
Subject: [PATCH 2216/4878] irqchip/armada-370-xp: Fix return value of
 armada_370_xp_msi_alloc()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit ce20eff57361e72878a772ef08b5239d3ae102b6 upstream.

IRQ domain alloc function should return zero on success. Non-zero value
indicates failure.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: fcc392d501bd ("irqchip/armada-370-xp: Use the generic MSI infrastructure")
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211125130057.26705-1-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-armada-370-xp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index d7eb2e93db8f5..07a59f15291f4 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -250,7 +250,7 @@ static int armada_370_xp_msi_alloc(struct irq_domain *domain, unsigned int virq,
 				    NULL, NULL);
 	}
 
-	return hwirq;
+	return 0;
 }
 
 static void armada_370_xp_msi_free(struct irq_domain *domain,
-- 
GitLab


From e1c6611f822e6f55069005bdf4b431ebafcd85fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 25 Nov 2021 14:00:57 +0100
Subject: [PATCH 2217/4878] irqchip/armada-370-xp: Fix support for Multi-MSI
 interrupts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit d0a553502efd545c1ce3fd08fc4d423f8e4ac3d6 upstream.

irq-armada-370-xp driver already sets MSI_FLAG_MULTI_PCI_MSI flag into
msi_domain_info structure. But allocated interrupt numbers for Multi-MSI
needs to be properly aligned otherwise devices send MSI interrupt with
wrong number.

Fix this issue by using function bitmap_find_free_region() instead of
bitmap_find_next_zero_area() to allocate aligned interrupt numbers.

Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: a71b9412c90c ("irqchip/armada-370-xp: Allow allocation of multiple MSIs")
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211125130057.26705-2-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-armada-370-xp.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 07a59f15291f4..84f2741aaac6a 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -232,16 +232,12 @@ static int armada_370_xp_msi_alloc(struct irq_domain *domain, unsigned int virq,
 	int hwirq, i;
 
 	mutex_lock(&msi_used_lock);
+	hwirq = bitmap_find_free_region(msi_used, PCI_MSI_DOORBELL_NR,
+					order_base_2(nr_irqs));
+	mutex_unlock(&msi_used_lock);
 
-	hwirq = bitmap_find_next_zero_area(msi_used, PCI_MSI_DOORBELL_NR,
-					   0, nr_irqs, 0);
-	if (hwirq >= PCI_MSI_DOORBELL_NR) {
-		mutex_unlock(&msi_used_lock);
+	if (hwirq < 0)
 		return -ENOSPC;
-	}
-
-	bitmap_set(msi_used, hwirq, nr_irqs);
-	mutex_unlock(&msi_used_lock);
 
 	for (i = 0; i < nr_irqs; i++) {
 		irq_domain_set_info(domain, virq + i, hwirq + i,
@@ -259,7 +255,7 @@ static void armada_370_xp_msi_free(struct irq_domain *domain,
 	struct irq_data *d = irq_domain_get_irq_data(domain, virq);
 
 	mutex_lock(&msi_used_lock);
-	bitmap_clear(msi_used, d->hwirq, nr_irqs);
+	bitmap_release_region(msi_used, d->hwirq, order_base_2(nr_irqs));
 	mutex_unlock(&msi_used_lock);
 }
 
-- 
GitLab


From cd946f0ebe787068fd8070e06249706b29e86923 Mon Sep 17 00:00:00 2001
From: Wudi Wang <wangwudi@hisilicon.com>
Date: Wed, 8 Dec 2021 09:54:29 +0800
Subject: [PATCH 2218/4878] irqchip/irq-gic-v3-its.c: Force synchronisation
 when issuing INVALL

commit b383a42ca523ce54bcbd63f7c8f3cf974abc9b9a upstream.

INVALL CMD specifies that the ITS must ensure any caching associated with
the interrupt collection defined by ICID is consistent with the LPI
configuration tables held in memory for all Redistributors. SYNC is
required to ensure that INVALL is executed.

Currently, LPI configuration data may be inconsistent with that in the
memory within a short period of time after the INVALL command is executed.

Signed-off-by: Wudi Wang <wangwudi@hisilicon.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Fixes: cc2d3216f53c ("irqchip: GICv3: ITS command queue")
Link: https://lore.kernel.org/r/20211208015429.5007-1-zhangshaokun@hisilicon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-gic-v3-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 95e0b82b6c661..42b295337bafb 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -742,7 +742,7 @@ static struct its_collection *its_build_invall_cmd(struct its_node *its,
 
 	its_fixup_cmd(cmd);
 
-	return NULL;
+	return desc->its_invall_cmd.col;
 }
 
 static struct its_vpe *its_build_vinvall_cmd(struct its_node *its,
-- 
GitLab


From 261d45a4c254ed75b6afdd65a5b1940199c911fb Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <vladimir.murzin@arm.com>
Date: Wed, 1 Dec 2021 11:02:58 +0000
Subject: [PATCH 2219/4878] irqchip: nvic: Fix offset for Interrupt Priority
 Offsets

commit c5e0cbe2858d278a27d5b3fe31890aea5be064c4 upstream.

According to ARM(v7M) ARM Interrupt Priority Offsets located at
0xE000E400-0xE000E5EC, while 0xE000E300-0xE000E33C covers read-only
Interrupt Active Bit Registers

Fixes: 292ec080491d ("irqchip: Add support for ARMv7-M NVIC")
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211201110259.84857-1-vladimir.murzin@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-nvic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c
index f747e2209ea99..21cb31ff2bbf2 100644
--- a/drivers/irqchip/irq-nvic.c
+++ b/drivers/irqchip/irq-nvic.c
@@ -26,7 +26,7 @@
 
 #define NVIC_ISER		0x000
 #define NVIC_ICER		0x080
-#define NVIC_IPR		0x300
+#define NVIC_IPR		0x400
 
 #define NVIC_MAX_BANKS		16
 /*
-- 
GitLab


From 0ec0eda3f3c3483872157a7780cebdf9bf3a11c4 Mon Sep 17 00:00:00 2001
From: Jeya R <jeyr@codeaurora.org>
Date: Wed, 24 Nov 2021 22:01:21 +0530
Subject: [PATCH 2220/4878] misc: fastrpc: fix improper packet size calculation

commit 3a1bf591e9a410f220b7405a142a47407394a1d5 upstream.

The buffer list is sorted and this is not being considered while
calculating packet size. This would lead to improper copy length
calculation for non-dmaheap buffers which would eventually cause
sending improper buffers to DSP.

Fixes: c68cfb718c8f ("misc: fastrpc: Add support for context Invoke method")
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Jeya R <jeyr@codeaurora.org>
Link: https://lore.kernel.org/r/1637771481-4299-1-git-send-email-jeyr@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/fastrpc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index a9c9d86eef4bc..ef49ac8d91019 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -717,16 +717,18 @@ static int fastrpc_get_meta_size(struct fastrpc_invoke_ctx *ctx)
 static u64 fastrpc_get_payload_size(struct fastrpc_invoke_ctx *ctx, int metalen)
 {
 	u64 size = 0;
-	int i;
+	int oix;
 
 	size = ALIGN(metalen, FASTRPC_ALIGN);
-	for (i = 0; i < ctx->nscalars; i++) {
+	for (oix = 0; oix < ctx->nbufs; oix++) {
+		int i = ctx->olaps[oix].raix;
+
 		if (ctx->args[i].fd == 0 || ctx->args[i].fd == -1) {
 
-			if (ctx->olaps[i].offset == 0)
+			if (ctx->olaps[oix].offset == 0)
 				size = ALIGN(size, FASTRPC_ALIGN);
 
-			size += (ctx->olaps[i].mend - ctx->olaps[i].mstart);
+			size += (ctx->olaps[oix].mend - ctx->olaps[oix].mstart);
 		}
 	}
 
-- 
GitLab


From d428e5477493946b77d1071e84b1475241974930 Mon Sep 17 00:00:00 2001
From: Maxim Mikityanskiy <maximmi@nvidia.com>
Date: Tue, 7 Dec 2021 10:15:21 +0200
Subject: [PATCH 2221/4878] bpf: Add selftests to cover packet access corner
 cases

commit b560b21f71eb4ef9dfc7c8ec1d0e4d7f9aa54b51 upstream.

This commit adds BPF verifier selftests that cover all corner cases by
packet boundary checks. Specifically, 8-byte packet reads are tested at
the beginning of data and at the beginning of data_meta, using all kinds
of boundary checks (all comparison operators: <, >, <=, >=; both
permutations of operands: data + length compared to end, end compared to
data + length). For each case there are three tests:

1. Length is just enough for an 8-byte read. Length is either 7 or 8,
   depending on the comparison.

2. Length is increased by 1 - should still pass the verifier. These
   cases are useful, because they failed before commit 2fa7d94afc1a
   ("bpf: Fix the off-by-two error in range markings").

3. Length is decreased by 1 - should be rejected by the verifier.

Some existing tests are just renamed to avoid duplication.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211207081521.41923-1-maximmi@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../bpf/verifier/xdp_direct_packet_access.c   | 600 +++++++++++++++++-
 1 file changed, 584 insertions(+), 16 deletions(-)

diff --git a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
index de172a5b8754a..b4ec228eb95d0 100644
--- a/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
+++ b/tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c
@@ -35,7 +35,7 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 },
 {
-	"XDP pkt read, pkt_data' > pkt_end, good access",
+	"XDP pkt read, pkt_data' > pkt_end, corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -87,6 +87,41 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_data' > pkt_end, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data' > pkt_end, corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_end > pkt_data', good access",
 	.insns = {
@@ -106,7 +141,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_end > pkt_data', bad access 1",
+	"XDP pkt read, pkt_end > pkt_data', corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -142,6 +177,42 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_end > pkt_data', corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_end > pkt_data', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_data' < pkt_end, good access",
 	.insns = {
@@ -161,7 +232,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data' < pkt_end, bad access 1",
+	"XDP pkt read, pkt_data' < pkt_end, corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -198,7 +269,43 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_end < pkt_data', good access",
+	"XDP pkt read, pkt_data' < pkt_end, corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data' < pkt_end, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_end < pkt_data', corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -250,6 +357,41 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_end < pkt_data', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_end < pkt_data', corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_data' >= pkt_end, good access",
 	.insns = {
@@ -268,7 +410,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data' >= pkt_end, bad access 1",
+	"XDP pkt read, pkt_data' >= pkt_end, corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -304,7 +446,41 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_end >= pkt_data', good access",
+	"XDP pkt read, pkt_data' >= pkt_end, corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data' >= pkt_end, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_end >= pkt_data', corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -359,7 +535,44 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data' <= pkt_end, good access",
+	"XDP pkt read, pkt_end >= pkt_data', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_end >= pkt_data', corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data' <= pkt_end, corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -413,6 +626,43 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_data' <= pkt_end, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data' <= pkt_end, corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_end <= pkt_data', good access",
 	.insns = {
@@ -431,7 +681,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_end <= pkt_data', bad access 1",
+	"XDP pkt read, pkt_end <= pkt_data', corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
 	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
@@ -467,7 +717,41 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_meta' > pkt_data, good access",
+	"XDP pkt read, pkt_end <= pkt_data', corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_end <= pkt_data', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_meta' > pkt_data, corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -519,6 +803,41 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_meta' > pkt_data, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_meta' > pkt_data, corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_data > pkt_meta', good access",
 	.insns = {
@@ -538,7 +857,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data > pkt_meta', bad access 1",
+	"XDP pkt read, pkt_data > pkt_meta', corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -574,6 +893,42 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_data > pkt_meta', corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data > pkt_meta', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_meta' < pkt_data, good access",
 	.insns = {
@@ -593,7 +948,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_meta' < pkt_data, bad access 1",
+	"XDP pkt read, pkt_meta' < pkt_data, corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -630,7 +985,43 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data < pkt_meta', good access",
+	"XDP pkt read, pkt_meta' < pkt_data, corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_meta' < pkt_data, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data < pkt_meta', corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -682,6 +1073,41 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_data < pkt_meta', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data < pkt_meta', corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_meta' >= pkt_data, good access",
 	.insns = {
@@ -700,7 +1126,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_meta' >= pkt_data, bad access 1",
+	"XDP pkt read, pkt_meta' >= pkt_data, corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -736,7 +1162,41 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data >= pkt_meta', good access",
+	"XDP pkt read, pkt_meta' >= pkt_data, corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_meta' >= pkt_data, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data >= pkt_meta', corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -791,7 +1251,44 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_meta' <= pkt_data, good access",
+	"XDP pkt read, pkt_data >= pkt_meta', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data >= pkt_meta', corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_meta' <= pkt_data, corner case, good access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -845,6 +1342,43 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_meta' <= pkt_data, corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 9),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -9),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_meta' <= pkt_data, corner case -1, bad access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 offset is outside of the packet",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
 {
 	"XDP pkt read, pkt_data <= pkt_meta', good access",
 	.insns = {
@@ -863,7 +1397,7 @@
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
 {
-	"XDP pkt read, pkt_data <= pkt_meta', bad access 1",
+	"XDP pkt read, pkt_data <= pkt_meta', corner case -1, bad access",
 	.insns = {
 	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
 		    offsetof(struct xdp_md, data_meta)),
@@ -898,3 +1432,37 @@
 	.prog_type = BPF_PROG_TYPE_XDP,
 	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 },
+{
+	"XDP pkt read, pkt_data <= pkt_meta', corner case, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -7),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"XDP pkt read, pkt_data <= pkt_meta', corner case +1, good access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct xdp_md, data_meta)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
-- 
GitLab


From 9fc17c3af56cd0a3e501bf11e68650265096f1a2 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sat, 23 Jan 2021 18:16:30 +0900
Subject: [PATCH 2222/4878] kbuild: simplify GCC_PLUGINS enablement in
 dummy-tools/gcc

commit f4c3b83b75b91c5059726cb91e3165cc01764ce7 upstream.

With commit 1e860048c53e ("gcc-plugins: simplify GCC plugin-dev
capability test") applied, this hunk can be way simplified because
now scripts/gcc-plugins/Kconfig only checks plugin-version.h

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/dummy-tools/gcc | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc
index 11c9f045ee4b9..0d0589cf8184e 100755
--- a/scripts/dummy-tools/gcc
+++ b/scripts/dummy-tools/gcc
@@ -75,16 +75,12 @@ if arg_contain -S "$@"; then
 	fi
 fi
 
-# For scripts/gcc-plugin.sh
+# To set GCC_PLUGINS
 if arg_contain -print-file-name=plugin "$@"; then
 	plugin_dir=$(mktemp -d)
 
-	sed -n 's/.*#include "\(.*\)"/\1/p' $(dirname $0)/../gcc-plugins/gcc-common.h |
-	while read header
-	do
-		mkdir -p $plugin_dir/include/$(dirname $header)
-		touch $plugin_dir/include/$header
-	done
+	mkdir -p $plugin_dir/include
+	touch $plugin_dir/include/plugin-version.h
 
 	echo $plugin_dir
 	exit 0
-- 
GitLab


From ad13421fd2cd49d68f422b4243958b3f05d562d2 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sat, 23 Jan 2021 22:33:33 +0900
Subject: [PATCH 2223/4878] doc: gcc-plugins: update gcc-plugins.rst

commit 9b6164342e981d751e69f5a165dd596ffcdfd6fe upstream.

This document was written a long time ago. Update it.

[1] Drop the version information

The range of the supported GCC versions are always changing. The
current minimal GCC version is 4.9, and commit 1e860048c53e
("gcc-plugins: simplify GCC plugin-dev capability test") removed the
old code accordingly.

We do not need to mention specific version ranges like "all gcc versions
from 4.5 to 6.0" since we forget to update the documentation when we
raise the minimal compiler version.

[2] Drop the C compiler statements

Since commit 77342a02ff6e ("gcc-plugins: drop support for GCC <= 4.7")
the GCC plugin infrastructure only supports g++.

[3] Drop supported architectures

As of v5.11-rc4, the infrastructure supports more architectures;
arm, arm64, mips, powerpc, riscv, s390, um, and x86. (just grep
"select HAVE_GCC_PLUGINS") Again, we miss to update this document when a
new architecture is supported. Let's just say "only some architectures".

[4] Update the apt-get example

We are now discussing to bump the minimal version to GCC 5. The GCC 4.9
support will be removed sooner or later. Change the package example to
gcc-10-plugin-dev while we are here.

[5] Update the build target

Since commit ce2fd53a10c7 ("kbuild: descend into scripts/gcc-plugins/
via scripts/Makefile"), "make gcc-plugins" is not supported.
"make scripts" builds all the enabled plugins, including some other
tools.

[6] Update the steps for adding a new plugin

At first, all CONFIG options for GCC plugins were located in arch/Kconfig.
After commit 45332b1bdfdc ("gcc-plugins: split out Kconfig entries to
scripts/gcc-plugins/Kconfig"), scripts/gcc-plugins/Kconfig became the
central place to collect plugin CONFIG options. In my understanding,
this requirement no longer exists because commit 9f671e58159a ("security:
Create "kernel hardening" config area") moved some of plugin CONFIG
options to another file. Find an appropriate place to add the new CONFIG.

The sub-directory support was never used by anyone, and removed by
commit c17d6179ad5a ("gcc-plugins: remove unused GCC_PLUGIN_SUBDIR").

Remove the useless $(src)/ prefix.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/kbuild/gcc-plugins.rst | 41 ++++++++++++++--------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/Documentation/kbuild/gcc-plugins.rst b/Documentation/kbuild/gcc-plugins.rst
index 4b1c10f88e304..68e29ec5e0194 100644
--- a/Documentation/kbuild/gcc-plugins.rst
+++ b/Documentation/kbuild/gcc-plugins.rst
@@ -11,16 +11,13 @@ compiler [1]_. They are useful for runtime instrumentation and static analysis.
 We can analyse, change and add further code during compilation via
 callbacks [2]_, GIMPLE [3]_, IPA [4]_ and RTL passes [5]_.
 
-The GCC plugin infrastructure of the kernel supports all gcc versions from
-4.5 to 6.0, building out-of-tree modules, cross-compilation and building in a
-separate directory.
-Plugin source files have to be compilable by both a C and a C++ compiler as well
-because gcc versions 4.5 and 4.6 are compiled by a C compiler,
-gcc-4.7 can be compiled by a C or a C++ compiler,
-and versions 4.8+ can only be compiled by a C++ compiler.
+The GCC plugin infrastructure of the kernel supports building out-of-tree
+modules, cross-compilation and building in a separate directory.
+Plugin source files have to be compilable by a C++ compiler.
 
-Currently the GCC plugin infrastructure supports only the x86, arm, arm64 and
-powerpc architectures.
+Currently the GCC plugin infrastructure supports only some architectures.
+Grep "select HAVE_GCC_PLUGINS" to find out which architectures support
+GCC plugins.
 
 This infrastructure was ported from grsecurity [6]_ and PaX [7]_.
 
@@ -59,8 +56,7 @@ $(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h,
 $(src)/scripts/gcc-plugins/gcc-generate-rtl-pass.h**
 
 	These headers automatically generate the registration structures for
-	GIMPLE, SIMPLE_IPA, IPA and RTL passes. They support all gcc versions
-	from 4.5 to 6.0.
+	GIMPLE, SIMPLE_IPA, IPA and RTL passes.
 	They should be preferred to creating the structures by hand.
 
 
@@ -68,21 +64,25 @@ Usage
 =====
 
 You must install the gcc plugin headers for your gcc version,
-e.g., on Ubuntu for gcc-4.9::
+e.g., on Ubuntu for gcc-10::
 
-	apt-get install gcc-4.9-plugin-dev
+	apt-get install gcc-10-plugin-dev
 
 Or on Fedora::
 
 	dnf install gcc-plugin-devel
 
-Enable a GCC plugin based feature in the kernel config::
+Enable the GCC plugin infrastructure and some plugin(s) you want to use
+in the kernel config::
 
-	CONFIG_GCC_PLUGIN_CYC_COMPLEXITY = y
+	CONFIG_GCC_PLUGINS=y
+	CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=y
+	CONFIG_GCC_PLUGIN_LATENT_ENTROPY=y
+	...
 
-To compile only the plugin(s)::
+To compile the minimum tool set including the plugin(s)::
 
-	make gcc-plugins
+	make scripts
 
 or just run the kernel make and compile the whole kernel with
 the cyclomatic complexity GCC plugin.
@@ -91,7 +91,8 @@ the cyclomatic complexity GCC plugin.
 4. How to add a new GCC plugin
 ==============================
 
-The GCC plugins are in $(src)/scripts/gcc-plugins/. You can use a file or a directory
-here. It must be added to $(src)/scripts/gcc-plugins/Makefile,
-$(src)/scripts/Makefile.gcc-plugins and $(src)/arch/Kconfig.
+The GCC plugins are in scripts/gcc-plugins/. You need to put plugin source files
+right under scripts/gcc-plugins/. Creating subdirectories is not supported.
+It must be added to scripts/gcc-plugins/Makefile, scripts/Makefile.gcc-plugins
+and a relevant Kconfig file.
 See the cyc_complexity_plugin.c (CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) GCC plugin.
-- 
GitLab


From af5ba49cf7052aaa0b2c7d71f9cd85ef85a4cbfe Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Sat, 19 Dec 2020 17:24:56 +0100
Subject: [PATCH 2224/4878] MAINTAINERS: adjust GCC PLUGINS after gcc-plugin.sh
 removal

commit 5136bb8c8b5872676f397b27f93a30568baf3a25 upstream.

Commit 1e860048c53e ("gcc-plugins: simplify GCC plugin-dev capability test")
removed ./scripts/gcc-plugin.sh, but missed to adjust MAINTAINERS.

Hence, ./scripts/get_maintainers.pl --self-test=patterns warns:

  warning: no file matches    F:    scripts/gcc-plugin.sh

Adjust entries in GGC PLUGINS section after this file removal.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 MAINTAINERS | 1 -
 1 file changed, 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4fef10dd29753..c64c9354c287f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7310,7 +7310,6 @@ L:	linux-hardening@vger.kernel.org
 S:	Maintained
 F:	Documentation/kbuild/gcc-plugins.rst
 F:	scripts/Makefile.gcc-plugins
-F:	scripts/gcc-plugin.sh
 F:	scripts/gcc-plugins/
 
 GCOV BASED KERNEL PROFILING
-- 
GitLab


From 47301c06f602f75fd7ba8a239a7de4b3b17aaa0d Mon Sep 17 00:00:00 2001
From: Robert Karszniewicz <r.karszniewicz@phytec.de>
Date: Fri, 22 Jan 2021 19:04:13 +0100
Subject: [PATCH 2225/4878] Documentation/Kbuild: Remove references to
 gcc-plugin.sh

commit 1cabe74f148f7b99d9f08274a62467f96c870f07 upstream.

gcc-plugin.sh has been removed in commit
1e860048c53e ("gcc-plugins: simplify GCC plugin-dev capability test").

Signed-off-by: Robert Karszniewicz <r.karszniewicz@phytec.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/kbuild/gcc-plugins.rst | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/Documentation/kbuild/gcc-plugins.rst b/Documentation/kbuild/gcc-plugins.rst
index 68e29ec5e0194..3349966f213dc 100644
--- a/Documentation/kbuild/gcc-plugins.rst
+++ b/Documentation/kbuild/gcc-plugins.rst
@@ -44,12 +44,6 @@ Files
 	This is a compatibility header for GCC plugins.
 	It should be always included instead of individual gcc headers.
 
-**$(src)/scripts/gcc-plugin.sh**
-
-	This script checks the availability of the included headers in
-	gcc-common.h and chooses the proper host compiler to build the plugins
-	(gcc-4.7 can be built by either gcc or g++).
-
 **$(src)/scripts/gcc-plugins/gcc-generate-gimple-pass.h,
 $(src)/scripts/gcc-plugins/gcc-generate-ipa-pass.h,
 $(src)/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h,
-- 
GitLab


From e4f2aee6612e56c2a9a5da6131ccd80e57d5075b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 14 Dec 2021 11:32:46 +0100
Subject: [PATCH 2226/4878] Linux 5.10.85

Link: https://lore.kernel.org/r/20211213092939.074326017@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index cce1e5dac06fb..8de80228df3f6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 84
+SUBLEVEL = 85
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From ba40eac9e58daa37af543055c40153da372c4b85 Mon Sep 17 00:00:00 2001
From: Victor Shutemov <victor@haleytek.com>
Date: Fri, 10 Dec 2021 18:00:13 +0100
Subject: [PATCH 2227/4878] ANDROID: GKI: Add VLAN_8021Q

VLAN_8021Q is needed for haleytek vehicle projects.
It's not possible to add as a vendor module since
building as module changes built-in data structures.

Bug: 210119134
Signed-off-by: Victor Shutemov <victor@haleytek.com>
Change-Id: I2098a3bc2fe25bfb3cc69cac947ab4b94c1f5e7f
---
 android/abi_gki_aarch64_virtual_device | 5 +++++
 arch/arm64/configs/gki_defconfig       | 1 +
 arch/x86/configs/gki_defconfig         | 1 +
 3 files changed, 7 insertions(+)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 5607beb5d87b1..fa9865f9da12c 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -501,6 +501,11 @@
 # required by failover.ko
   netdev_master_upper_dev_link
   rtnl_is_locked
+  vlan_uses_dev
+  vlan_vid_add
+  vlan_vid_del
+  vlan_vids_add_by_dev
+  vlan_vids_del_by_dev
 
 # required by gnss-cmdline.ko
   bus_find_device
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index dffaa14de551f..42e60d1b623dc 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -227,6 +227,7 @@ CONFIG_IP6_NF_RAW=y
 CONFIG_TIPC=y
 CONFIG_L2TP=y
 CONFIG_BRIDGE=y
+CONFIG_VLAN_8021Q=y
 CONFIG_6LOWPAN=y
 CONFIG_IEEE802154=y
 CONFIG_IEEE802154_6LOWPAN=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index f713bebb5dca0..7c7a02e310e43 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -203,6 +203,7 @@ CONFIG_IP6_NF_RAW=y
 CONFIG_TIPC=y
 CONFIG_L2TP=y
 CONFIG_BRIDGE=y
+CONFIG_VLAN_8021Q=y
 CONFIG_6LOWPAN=y
 CONFIG_IEEE802154=y
 CONFIG_IEEE802154_6LOWPAN=y
-- 
GitLab


From c4499b9275b57ad763ff9fcd52340ae01182c9a8 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 13 Dec 2021 13:28:40 -0800
Subject: [PATCH 2228/4878] f2fs: avoid down_write on nat_tree_lock during
 checkpoint

Let's cache nat entry if there's no lock contention only.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/node.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 556fcd8457f3f..b1bc7d76da3b6 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -430,6 +430,10 @@ static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	struct nat_entry *new, *e;
 
+	/* Let's mitigate lock contention of nat_tree_lock during checkpoint */
+	if (rwsem_is_locked(&sbi->cp_global_sem))
+		return;
+
 	new = __alloc_nat_entry(sbi, nid, false);
 	if (!new)
 		return;
-- 
GitLab


From e5faa0d5a5df35ccc0bdc8ef1b6144f9edf8de45 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 13 Dec 2021 14:16:32 -0800
Subject: [PATCH 2229/4878] f2fs: do not bother checkpoint by
 f2fs_get_node_info

This patch tries to mitigate lock contention between f2fs_write_checkpoint and
f2fs_get_node_info along with nat_tree_lock.

The idea is, if checkpoint is currently running, other threads that try to grab
nat_tree_lock would be better to wait for checkpoint.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c |  2 +-
 fs/f2fs/compress.c   |  2 +-
 fs/f2fs/data.c       |  8 ++++----
 fs/f2fs/f2fs.h       |  2 +-
 fs/f2fs/file.c       |  2 +-
 fs/f2fs/gc.c         |  6 +++---
 fs/f2fs/inline.c     |  4 ++--
 fs/f2fs/inode.c      |  2 +-
 fs/f2fs/node.c       | 19 ++++++++++---------
 fs/f2fs/recovery.c   |  2 +-
 fs/f2fs/segment.c    |  2 +-
 11 files changed, 26 insertions(+), 25 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 48beee4ceb3b5..acccfe47fb7c8 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -664,7 +664,7 @@ static int recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 	/* truncate all the data during iput */
 	iput(inode);
 
-	err = f2fs_get_node_info(sbi, ino, &ni);
+	err = f2fs_get_node_info(sbi, ino, &ni, false);
 	if (err)
 		goto err_out;
 
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 7772f327b63c6..f81e7a4a6a198 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1285,7 +1285,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 
 	psize = (loff_t)(cc->rpages[last_index]->index + 1) << PAGE_SHIFT;
 
-	err = f2fs_get_node_info(fio.sbi, dn.nid, &ni);
+	err = f2fs_get_node_info(fio.sbi, dn.nid, &ni, false);
 	if (err)
 		goto out_put_dnode;
 
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 2bd963d9f974a..bc93d997fd0b5 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1365,7 +1365,7 @@ static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)
 	if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC)))
 		return -EPERM;
 
-	err = f2fs_get_node_info(sbi, dn->nid, &ni);
+	err = f2fs_get_node_info(sbi, dn->nid, &ni, false);
 	if (err)
 		return err;
 
@@ -1767,7 +1767,7 @@ static int f2fs_xattr_fiemap(struct inode *inode,
 		if (!page)
 			return -ENOMEM;
 
-		err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
+		err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
 		if (err) {
 			f2fs_put_page(page, 1);
 			return err;
@@ -1799,7 +1799,7 @@ static int f2fs_xattr_fiemap(struct inode *inode,
 		if (!page)
 			return -ENOMEM;
 
-		err = f2fs_get_node_info(sbi, xnid, &ni);
+		err = f2fs_get_node_info(sbi, xnid, &ni, false);
 		if (err) {
 			f2fs_put_page(page, 1);
 			return err;
@@ -2659,7 +2659,7 @@ got_it:
 		fio->need_lock = LOCK_REQ;
 	}
 
-	err = f2fs_get_node_info(fio->sbi, dn.nid, &ni);
+	err = f2fs_get_node_info(fio->sbi, dn.nid, &ni, false);
 	if (err)
 		goto out_writepage;
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 0a32718a6d1a8..d7a1d3a78ed32 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3409,7 +3409,7 @@ int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid);
 bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid);
 bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino);
 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
-						struct node_info *ni);
+				struct node_info *ni, bool checkpoint_context);
 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs);
 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode);
 int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index e845185ab9c33..0c85d0f75bb7d 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1231,7 +1231,7 @@ static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
 			if (ret)
 				return ret;
 
-			ret = f2fs_get_node_info(sbi, dn.nid, &ni);
+			ret = f2fs_get_node_info(sbi, dn.nid, &ni, false);
 			if (ret) {
 				f2fs_put_dnode(&dn);
 				return ret;
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 7fbe46477a5ac..a6accec60d048 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -959,7 +959,7 @@ next_step:
 			continue;
 		}
 
-		if (f2fs_get_node_info(sbi, nid, &ni)) {
+		if (f2fs_get_node_info(sbi, nid, &ni, false)) {
 			f2fs_put_page(node_page, 1);
 			continue;
 		}
@@ -1027,7 +1027,7 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 	if (IS_ERR(node_page))
 		return false;
 
-	if (f2fs_get_node_info(sbi, nid, dni)) {
+	if (f2fs_get_node_info(sbi, nid, dni, false)) {
 		f2fs_put_page(node_page, 1);
 		return false;
 	}
@@ -1221,7 +1221,7 @@ static int move_data_block(struct inode *inode, block_t bidx,
 
 	f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
 
-	err = f2fs_get_node_info(fio.sbi, dn.nid, &ni);
+	err = f2fs_get_node_info(fio.sbi, dn.nid, &ni, false);
 	if (err)
 		goto put_out;
 
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index ea08f0dfa1bdf..4b5cefa3f90c1 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -131,7 +131,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
 	if (err)
 		return err;
 
-	err = f2fs_get_node_info(fio.sbi, dn->nid, &ni);
+	err = f2fs_get_node_info(fio.sbi, dn->nid, &ni, false);
 	if (err) {
 		f2fs_truncate_data_blocks_range(dn, 1);
 		f2fs_put_dnode(dn);
@@ -786,7 +786,7 @@ int f2fs_inline_data_fiemap(struct inode *inode,
 		ilen = start + len;
 	ilen -= start;
 
-	err = f2fs_get_node_info(F2FS_I_SB(inode), inode->i_ino, &ni);
+	err = f2fs_get_node_info(F2FS_I_SB(inode), inode->i_ino, &ni, false);
 	if (err)
 		goto out;
 
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 935016e56010b..2ab3b424735a4 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -881,7 +881,7 @@ void f2fs_handle_failed_inode(struct inode *inode)
 	 * so we can prevent losing this orphan when encoutering checkpoint
 	 * and following suddenly power-off.
 	 */
-	err = f2fs_get_node_info(sbi, inode->i_ino, &ni);
+	err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
 	if (err) {
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b1bc7d76da3b6..e0b5eb28d3839 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -543,7 +543,7 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 }
 
 int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
-						struct node_info *ni)
+				struct node_info *ni, bool checkpoint_context)
 {
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
@@ -576,9 +576,10 @@ retry:
 	 * nat_tree_lock. Therefore, we should retry, if we failed to grab here
 	 * while not bothering checkpoint.
 	 */
-	if (!rwsem_is_locked(&sbi->cp_global_sem)) {
+	if (!rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) {
 		down_read(&curseg->journal_rwsem);
-	} else if (!down_read_trylock(&curseg->journal_rwsem)) {
+	} else if (rwsem_is_contended(&nm_i->nat_tree_lock) ||
+				!down_read_trylock(&curseg->journal_rwsem)) {
 		up_read(&nm_i->nat_tree_lock);
 		goto retry;
 	}
@@ -891,7 +892,7 @@ static int truncate_node(struct dnode_of_data *dn)
 	int err;
 	pgoff_t index;
 
-	err = f2fs_get_node_info(sbi, dn->nid, &ni);
+	err = f2fs_get_node_info(sbi, dn->nid, &ni, false);
 	if (err)
 		return err;
 
@@ -1290,7 +1291,7 @@ struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs)
 		goto fail;
 
 #ifdef CONFIG_F2FS_CHECK_FS
-	err = f2fs_get_node_info(sbi, dn->nid, &new_ni);
+	err = f2fs_get_node_info(sbi, dn->nid, &new_ni, false);
 	if (err) {
 		dec_valid_node_count(sbi, dn->inode, !ofs);
 		goto fail;
@@ -1352,7 +1353,7 @@ static int read_node_page(struct page *page, int op_flags)
 		return LOCKED_PAGE;
 	}
 
-	err = f2fs_get_node_info(sbi, page->index, &ni);
+	err = f2fs_get_node_info(sbi, page->index, &ni, false);
 	if (err)
 		return err;
 
@@ -1604,7 +1605,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	nid = nid_of_node(page);
 	f2fs_bug_on(sbi, page->index != nid);
 
-	if (f2fs_get_node_info(sbi, nid, &ni))
+	if (f2fs_get_node_info(sbi, nid, &ni, !do_balance))
 		goto redirty_out;
 
 	if (wbc->for_reclaim) {
@@ -2705,7 +2706,7 @@ int f2fs_recover_xattr_data(struct inode *inode, struct page *page)
 		goto recover_xnid;
 
 	/* 1: invalidate the previous xattr nid */
-	err = f2fs_get_node_info(sbi, prev_xnid, &ni);
+	err = f2fs_get_node_info(sbi, prev_xnid, &ni, false);
 	if (err)
 		return err;
 
@@ -2745,7 +2746,7 @@ int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
 	struct page *ipage;
 	int err;
 
-	err = f2fs_get_node_info(sbi, ino, &old_ni);
+	err = f2fs_get_node_info(sbi, ino, &old_ni, false);
 	if (err)
 		return err;
 
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 6a1b4668d933a..e65c73c4411dc 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -595,7 +595,7 @@ retry_dn:
 
 	f2fs_wait_on_page_writeback(dn.node_page, NODE, true, true);
 
-	err = f2fs_get_node_info(sbi, dn.nid, &ni);
+	err = f2fs_get_node_info(sbi, dn.nid, &ni, false);
 	if (err)
 		goto err;
 
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 5ebb5586a9dd9..a2740f1836bf2 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -254,7 +254,7 @@ retry:
 				goto next;
 			}
 
-			err = f2fs_get_node_info(sbi, dn.nid, &ni);
+			err = f2fs_get_node_info(sbi, dn.nid, &ni, false);
 			if (err) {
 				f2fs_put_dnode(&dn);
 				return err;
-- 
GitLab


From b8de70911b13cff0aa95e6e1e3b4e3752e5469ab Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 12 Dec 2021 17:16:30 +0800
Subject: [PATCH 2230/4878] f2fs: fix to do sanity check on last xattr entry in
 __f2fs_setxattr()

As Wenqing Liu reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215235

- Overview
page fault in f2fs_setxattr() when mount and operate on corrupted image

- Reproduce
tested on kernel 5.16-rc3, 5.15.X under root

1. unzip tmp7.zip
2. ./single.sh f2fs 7

Sometimes need to run the script several times

- Kernel dump
loop0: detected capacity change from 0 to 131072
F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Mounted with checkpoint version = 7548c2ee
BUG: unable to handle page fault for address: ffffe47bc7123f48
RIP: 0010:kfree+0x66/0x320
Call Trace:
 __f2fs_setxattr+0x2aa/0xc00 [f2fs]
 f2fs_setxattr+0xfa/0x480 [f2fs]
 __f2fs_set_acl+0x19b/0x330 [f2fs]
 __vfs_removexattr+0x52/0x70
 __vfs_removexattr_locked+0xb1/0x140
 vfs_removexattr+0x56/0x100
 removexattr+0x57/0x80
 path_removexattr+0xa3/0xc0
 __x64_sys_removexattr+0x17/0x20
 do_syscall_64+0x37/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The root cause is in __f2fs_setxattr(), we missed to do sanity check on
last xattr entry, result in out-of-bound memory access during updating
inconsistent xattr data of target inode.

After the fix, it can detect such xattr inconsistency as below:

F2FS-fs (loop11): inode (7) has invalid last xattr entry, entry_size: 60676
F2FS-fs (loop11): inode (8) has corrupted xattr
F2FS-fs (loop11): inode (8) has corrupted xattr
F2FS-fs (loop11): inode (8) has invalid last xattr entry, entry_size: 47736

Cc: stable@vger.kernel.org
Reported-by: Wenqing Liu <wenqingliu0120@gmail.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/xattr.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 052b51c891b5d..895162e8aff48 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -682,8 +682,17 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 	}
 
 	last = here;
-	while (!IS_XATTR_LAST_ENTRY(last))
+	while (!IS_XATTR_LAST_ENTRY(last)) {
+		if ((void *)(last) + sizeof(__u32) > last_base_addr ||
+			(void *)XATTR_NEXT_ENTRY(last) > last_base_addr) {
+			f2fs_err(F2FS_I_SB(inode), "inode (%lu) has invalid last xattr entry, entry_size: %zu",
+					inode->i_ino, ENTRY_SIZE(last));
+			set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
+			error = -EFSCORRUPTED;
+			goto exit;
+		}
 		last = XATTR_NEXT_ENTRY(last);
+	}
 
 	newsize = XATTR_ALIGN(sizeof(struct f2fs_xattr_entry) + len + size);
 
-- 
GitLab


From 960c2330cac0415e71e07ac61ffda0e316f166d5 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 12 Dec 2021 17:16:56 +0800
Subject: [PATCH 2231/4878] f2fs: clean up __find_inline_xattr() with
 __find_xattr()

Just cleanup, no logic change.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/xattr.c | 29 +++++++++++------------------
 1 file changed, 11 insertions(+), 18 deletions(-)

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 895162e8aff48..d125f8c61bf51 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -224,15 +224,18 @@ static inline const struct xattr_handler *f2fs_xattr_handler(int index)
 }
 
 static struct f2fs_xattr_entry *__find_xattr(void *base_addr,
-				void *last_base_addr, int index,
-				size_t len, const char *name)
+				void *last_base_addr, void **last_addr,
+				int index, size_t len, const char *name)
 {
 	struct f2fs_xattr_entry *entry;
 
 	list_for_each_xattr(entry, base_addr) {
 		if ((void *)(entry) + sizeof(__u32) > last_base_addr ||
-			(void *)XATTR_NEXT_ENTRY(entry) > last_base_addr)
+			(void *)XATTR_NEXT_ENTRY(entry) > last_base_addr) {
+			if (last_addr)
+				*last_addr = entry;
 			return NULL;
+		}
 
 		if (entry->e_name_index != index)
 			continue;
@@ -252,19 +255,9 @@ static struct f2fs_xattr_entry *__find_inline_xattr(struct inode *inode,
 	unsigned int inline_size = inline_xattr_size(inode);
 	void *max_addr = base_addr + inline_size;
 
-	list_for_each_xattr(entry, base_addr) {
-		if ((void *)entry + sizeof(__u32) > max_addr ||
-			(void *)XATTR_NEXT_ENTRY(entry) > max_addr) {
-			*last_addr = entry;
-			return NULL;
-		}
-		if (entry->e_name_index != index)
-			continue;
-		if (entry->e_name_len != len)
-			continue;
-		if (!memcmp(entry->e_name, name, len))
-			break;
-	}
+	entry = __find_xattr(base_addr, max_addr, last_addr, index, len, name);
+	if (!entry)
+		return NULL;
 
 	/* inline xattr header or entry across max inline xattr size */
 	if (IS_XATTR_LAST_ENTRY(entry) &&
@@ -366,7 +359,7 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
 	else
 		cur_addr = txattr_addr;
 
-	*xe = __find_xattr(cur_addr, last_txattr_addr, index, len, name);
+	*xe = __find_xattr(cur_addr, last_txattr_addr, NULL, index, len, name);
 	if (!*xe) {
 		f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr",
 								inode->i_ino);
@@ -657,7 +650,7 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 	last_base_addr = (void *)base_addr + XATTR_SIZE(inode);
 
 	/* find entry with wanted name. */
-	here = __find_xattr(base_addr, last_base_addr, index, len, name);
+	here = __find_xattr(base_addr, last_base_addr, NULL, index, len, name);
 	if (!here) {
 		f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr",
 								inode->i_ino);
-- 
GitLab


From 1c6836b331aea584db9df2bb61512c098f52e9e1 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 12 Dec 2021 17:17:51 +0800
Subject: [PATCH 2232/4878] f2fs: support fault injection to f2fs_trylock_op()

f2fs: support fault injection for f2fs_trylock_op()

This patch supports to inject fault into f2fs_trylock_op().

Usage:
a) echo 65536 > /sys/fs/f2fs/<dev>/inject_type or
b) mount -o fault_type=65536 <dev> <mountpoint>

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/filesystems/f2fs.rst | 1 +
 fs/f2fs/f2fs.h                     | 5 +++++
 fs/f2fs/super.c                    | 1 +
 3 files changed, 7 insertions(+)

diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 6954c04753ad7..5fda320354a64 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -198,6 +198,7 @@ fault_type=%d		 Support configuring fault injection type, should be
 			 FAULT_WRITE_IO		  0x000004000
 			 FAULT_SLAB_ALLOC	  0x000008000
 			 FAULT_DQUOT_INIT	  0x000010000
+			 FAULT_LOCK_OP		  0x000020000
 			 ===================	  ===========
 mode=%s			 Control block allocation mode which supports "adaptive"
 			 and "lfs". In "lfs" mode, there should be no random
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d7a1d3a78ed32..07ba04b92f49c 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -56,6 +56,7 @@ enum {
 	FAULT_WRITE_IO,
 	FAULT_SLAB_ALLOC,
 	FAULT_DQUOT_INIT,
+	FAULT_LOCK_OP,
 	FAULT_MAX,
 };
 
@@ -2096,6 +2097,10 @@ static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 
 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
 {
+	if (time_to_inject(sbi, FAULT_LOCK_OP)) {
+		f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
+		return 0;
+	}
 	return down_read_trylock(&sbi->cp_rwsem);
 }
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index e42d7a6091a9e..597fcfc865195 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -59,6 +59,7 @@ const char *f2fs_fault_name[FAULT_MAX] = {
 	[FAULT_WRITE_IO]	= "write IO error",
 	[FAULT_SLAB_ALLOC]	= "slab alloc",
 	[FAULT_DQUOT_INIT]	= "dquot initialize",
+	[FAULT_LOCK_OP]		= "lock_op",
 };
 
 void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
-- 
GitLab


From 2ed0588ab8f6777bf0991c8fa06b66fc006d0fef Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 12 Dec 2021 20:28:12 +0800
Subject: [PATCH 2233/4878] f2fs: fix to check available space of CP area
 correctly in update_ckpt_flags()

Otherwise, nat_bit area may be persisted across boundary of CP area during
nat_bit rebuilding.

Fixes: 94c821fb286b ("f2fs: rebuild nat_bits during umount")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index acccfe47fb7c8..5de8a1c8f2a45 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1302,8 +1302,8 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 	unsigned long flags;
 
 	if (cpc->reason & CP_UMOUNT) {
-		if (le32_to_cpu(ckpt->cp_pack_total_block_count) >
-			sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) {
+		if (le32_to_cpu(ckpt->cp_pack_total_block_count) +
+			NM_I(sbi)->nat_bits_blocks > sbi->blocks_per_seg) {
 			clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
 			f2fs_notice(sbi, "Disable nat_bits due to no space");
 		} else if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG) &&
-- 
GitLab


From f70f7045c1a6723f1a42359fb79a32009837c23a Mon Sep 17 00:00:00 2001
From: Jeson Gao <jeson.gao@unisoc.com>
Date: Tue, 14 Dec 2021 18:38:21 +0800
Subject: [PATCH 2234/4878] ANDROID: thermal: fix introduced kernelci warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Using KBUILD_BUILD_USER=KernelCI ARCH=arm to build will introduce the
following warning
warning: ‘struct cpufreq_policy’declared inside parameter list will
not be visible outside of this definition or declaration
need to include cpufreq.h file.

Bug: 208166320

Fixes: fc827b344f76 ("ANDROID: thermal: Add vendor hooks for thermal")
Signed-off-by: Jeson Gao <jeson.gao@unisoc.com>
Change-Id: I1ec2f601ee7d8a4b793304c219c7735244d4da5c
---
 include/trace/hooks/thermal.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/trace/hooks/thermal.h b/include/trace/hooks/thermal.h
index 3de589459b36b..7f775134457ea 100644
--- a/include/trace/hooks/thermal.h
+++ b/include/trace/hooks/thermal.h
@@ -9,6 +9,7 @@
 
 #include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
+#include <linux/cpufreq.h>
 
 DECLARE_HOOK(android_vh_enable_thermal_genl_check,
 	TP_PROTO(int event, int tz_id, int *enable_thermal_genl),
-- 
GitLab


From 88b7179fcdb59ade839972bb6042e2b986e7cd57 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 2 Dec 2021 13:50:02 -0800
Subject: [PATCH 2235/4878] ANDROID: fuse: Move functions in preparation for
 fuse-bpf

Bug: 202785178
Test: test_fuse passes on linux, feature works on cuttlefish
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ie738893a821d1f5f252c4c6e86274d55a6f09965
---
 fs/fuse/dir.c             |  81 +-------------------------
 fs/fuse/fuse_i.h          | 119 +++++++++++++++++++++++++++-----------
 fs/fuse/inode.c           |  46 +++++++--------
 fs/fuse/readdir.c         |   4 +-
 include/uapi/linux/fuse.h |  43 ++++++++++++++
 5 files changed, 154 insertions(+), 139 deletions(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index b5439324685be..f2a48918b0c74 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -74,28 +74,6 @@ static void fuse_dentry_settime(struct dentry *dentry, u64 time)
 	__fuse_dentry_settime(dentry, time);
 }
 
-/*
- * FUSE caches dentries and attributes with separate timeout.  The
- * time in jiffies until the dentry/attributes are valid is stored in
- * dentry->d_fsdata and fuse_inode->i_time respectively.
- */
-
-/*
- * Calculate the time in jiffies until a dentry/attributes are valid
- */
-static u64 time_to_jiffies(u64 sec, u32 nsec)
-{
-	if (sec || nsec) {
-		struct timespec64 ts = {
-			sec,
-			min_t(u32, nsec, NSEC_PER_SEC - 1)
-		};
-
-		return get_jiffies_64() + timespec64_to_jiffies(&ts);
-	} else
-		return 0;
-}
-
 /*
  * Set dentry and possibly attribute timeouts from the lookup/mk*
  * replies
@@ -106,11 +84,6 @@ void fuse_change_entry_timeout(struct dentry *entry, struct fuse_entry_out *o)
 		time_to_jiffies(o->entry_valid, o->entry_valid_nsec));
 }
 
-static u64 attr_timeout(struct fuse_attr_out *o)
-{
-	return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
-}
-
 u64 entry_attr_timeout(struct fuse_entry_out *o)
 {
 	return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
@@ -1033,7 +1006,7 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
 	return err;
 }
 
-static void fuse_fillattr(struct inode *inode, struct fuse_attr *attr,
+void fuse_fillattr(struct inode *inode, struct fuse_attr *attr,
 			  struct kstat *stat)
 {
 	unsigned int blkbits;
@@ -1494,58 +1467,6 @@ static long fuse_dir_compat_ioctl(struct file *file, unsigned int cmd,
 				 FUSE_IOCTL_COMPAT | FUSE_IOCTL_DIR);
 }
 
-static bool update_mtime(unsigned ivalid, bool trust_local_mtime)
-{
-	/* Always update if mtime is explicitly set  */
-	if (ivalid & ATTR_MTIME_SET)
-		return true;
-
-	/* Or if kernel i_mtime is the official one */
-	if (trust_local_mtime)
-		return true;
-
-	/* If it's an open(O_TRUNC) or an ftruncate(), don't update */
-	if ((ivalid & ATTR_SIZE) && (ivalid & (ATTR_OPEN | ATTR_FILE)))
-		return false;
-
-	/* In all other cases update */
-	return true;
-}
-
-static void iattr_to_fattr(struct fuse_conn *fc, struct iattr *iattr,
-			   struct fuse_setattr_in *arg, bool trust_local_cmtime)
-{
-	unsigned ivalid = iattr->ia_valid;
-
-	if (ivalid & ATTR_MODE)
-		arg->valid |= FATTR_MODE,   arg->mode = iattr->ia_mode;
-	if (ivalid & ATTR_UID)
-		arg->valid |= FATTR_UID,    arg->uid = from_kuid(fc->user_ns, iattr->ia_uid);
-	if (ivalid & ATTR_GID)
-		arg->valid |= FATTR_GID,    arg->gid = from_kgid(fc->user_ns, iattr->ia_gid);
-	if (ivalid & ATTR_SIZE)
-		arg->valid |= FATTR_SIZE,   arg->size = iattr->ia_size;
-	if (ivalid & ATTR_ATIME) {
-		arg->valid |= FATTR_ATIME;
-		arg->atime = iattr->ia_atime.tv_sec;
-		arg->atimensec = iattr->ia_atime.tv_nsec;
-		if (!(ivalid & ATTR_ATIME_SET))
-			arg->valid |= FATTR_ATIME_NOW;
-	}
-	if ((ivalid & ATTR_MTIME) && update_mtime(ivalid, trust_local_cmtime)) {
-		arg->valid |= FATTR_MTIME;
-		arg->mtime = iattr->ia_mtime.tv_sec;
-		arg->mtimensec = iattr->ia_mtime.tv_nsec;
-		if (!(ivalid & ATTR_MTIME_SET) && !trust_local_cmtime)
-			arg->valid |= FATTR_MTIME_NOW;
-	}
-	if ((ivalid & ATTR_CTIME) && trust_local_cmtime) {
-		arg->valid |= FATTR_CTIME;
-		arg->ctime = iattr->ia_ctime.tv_sec;
-		arg->ctimensec = iattr->ia_ctime.tv_nsec;
-	}
-}
-
 /*
  * Prevent concurrent writepages on inode
  *
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 63225ed36f7c3..6b607f9c25ad6 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -249,46 +249,12 @@ struct fuse_file {
 	bool flock:1;
 };
 
-/** One input argument of a request */
-struct fuse_in_arg {
-	unsigned size;
-	const void *value;
-};
-
-/** One output argument of a request */
-struct fuse_arg {
-	unsigned size;
-	void *value;
-};
-
 /** FUSE page descriptor */
 struct fuse_page_desc {
 	unsigned int length;
 	unsigned int offset;
 };
 
-struct fuse_args {
-	uint64_t nodeid;
-	uint32_t opcode;
-	unsigned short in_numargs;
-	unsigned short out_numargs;
-	bool force:1;
-	bool noreply:1;
-	bool nocreds:1;
-	bool in_pages:1;
-	bool out_pages:1;
-	bool out_argvar:1;
-	bool page_zeroing:1;
-	bool page_replace:1;
-	bool may_block:1;
-	struct fuse_in_arg in_args[3];
-	struct fuse_arg out_args[2];
-	void (*end)(struct fuse_mount *fm, struct fuse_args *args, int error);
-
-	/* Path used for completing d_canonical_path */
-	struct path *canonical_path;
-};
-
 struct fuse_args_pages {
 	struct fuse_args args;
 	struct page **pages;
@@ -954,6 +920,9 @@ void fuse_read_args_fill(struct fuse_io_args *ia, struct file *file, loff_t pos,
 			 size_t count, int opcode);
 
 
+int fuse_parse_dirfile(char *buf, size_t nbytes, struct file *file,
+			 struct dir_context *ctx);
+
 /**
  * Send OPEN or OPENDIR request
  */
@@ -1264,4 +1233,86 @@ ssize_t fuse_passthrough_read_iter(struct kiocb *iocb, struct iov_iter *to);
 ssize_t fuse_passthrough_write_iter(struct kiocb *iocb, struct iov_iter *from);
 ssize_t fuse_passthrough_mmap(struct file *file, struct vm_area_struct *vma);
 
+/*
+ * FUSE caches dentries and attributes with separate timeout.  The
+ * time in jiffies until the dentry/attributes are valid is stored in
+ * dentry->d_fsdata and fuse_inode->i_time respectively.
+ */
+
+/*
+ * Calculate the time in jiffies until a dentry/attributes are valid
+ */
+static inline u64 time_to_jiffies(u64 sec, u32 nsec)
+{
+	if (sec || nsec) {
+		struct timespec64 ts = {
+			sec,
+			min_t(u32, nsec, NSEC_PER_SEC - 1)
+		};
+
+		return get_jiffies_64() + timespec64_to_jiffies(&ts);
+	} else
+		return 0;
+}
+
+static inline u64 attr_timeout(struct fuse_attr_out *o)
+{
+	return time_to_jiffies(o->attr_valid, o->attr_valid_nsec);
+}
+
+static inline bool update_mtime(unsigned ivalid, bool trust_local_mtime)
+{
+	/* Always update if mtime is explicitly set  */
+	if (ivalid & ATTR_MTIME_SET)
+		return true;
+
+	/* Or if kernel i_mtime is the official one */
+	if (trust_local_mtime)
+		return true;
+
+	/* If it's an open(O_TRUNC) or an ftruncate(), don't update */
+	if ((ivalid & ATTR_SIZE) && (ivalid & (ATTR_OPEN | ATTR_FILE)))
+		return false;
+
+	/* In all other cases update */
+	return true;
+}
+
+void fuse_fillattr(struct inode *inode, struct fuse_attr *attr,
+			  struct kstat *stat);
+
+static inline void iattr_to_fattr(struct fuse_conn *fc, struct iattr *iattr,
+			   struct fuse_setattr_in *arg, bool trust_local_cmtime)
+{
+	unsigned ivalid = iattr->ia_valid;
+
+	if (ivalid & ATTR_MODE)
+		arg->valid |= FATTR_MODE,   arg->mode = iattr->ia_mode;
+	if (ivalid & ATTR_UID)
+		arg->valid |= FATTR_UID,    arg->uid = from_kuid(fc->user_ns, iattr->ia_uid);
+	if (ivalid & ATTR_GID)
+		arg->valid |= FATTR_GID,    arg->gid = from_kgid(fc->user_ns, iattr->ia_gid);
+	if (ivalid & ATTR_SIZE)
+		arg->valid |= FATTR_SIZE,   arg->size = iattr->ia_size;
+	if (ivalid & ATTR_ATIME) {
+		arg->valid |= FATTR_ATIME;
+		arg->atime = iattr->ia_atime.tv_sec;
+		arg->atimensec = iattr->ia_atime.tv_nsec;
+		if (!(ivalid & ATTR_ATIME_SET))
+			arg->valid |= FATTR_ATIME_NOW;
+	}
+	if ((ivalid & ATTR_MTIME) && update_mtime(ivalid, trust_local_cmtime)) {
+		arg->valid |= FATTR_MTIME;
+		arg->mtime = iattr->ia_mtime.tv_sec;
+		arg->mtimensec = iattr->ia_mtime.tv_nsec;
+		if (!(ivalid & ATTR_MTIME_SET) && !trust_local_cmtime)
+			arg->valid |= FATTR_MTIME_NOW;
+	}
+	if ((ivalid & ATTR_CTIME) && trust_local_cmtime) {
+		arg->valid |= FATTR_CTIME;
+		arg->ctime = iattr->ia_ctime.tv_sec;
+		arg->ctimensec = iattr->ia_ctime.tv_nsec;
+	}
+}
+
 #endif /* _FS_FUSE_I_H */
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index b740088b1abb2..1be825e310ede 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -161,6 +161,28 @@ static ino_t fuse_squash_ino(u64 ino64)
 	return ino;
 }
 
+static void fuse_fill_attr_from_inode(struct fuse_attr *attr,
+				      const struct inode *inode)
+{
+	*attr = (struct fuse_attr){
+		.ino		= inode->i_ino,
+		.size		= inode->i_size,
+		.blocks		= inode->i_blocks,
+		.atime		= inode->i_atime.tv_sec,
+		.mtime		= inode->i_mtime.tv_sec,
+		.ctime		= inode->i_ctime.tv_sec,
+		.atimensec	= inode->i_atime.tv_nsec,
+		.mtimensec	= inode->i_mtime.tv_nsec,
+		.ctimensec	= inode->i_ctime.tv_nsec,
+		.mode		= inode->i_mode,
+		.nlink		= inode->i_nlink,
+		.uid		= inode->i_uid.val,
+		.gid		= inode->i_gid.val,
+		.rdev		= inode->i_rdev,
+		.blksize	= 1u << inode->i_blkbits,
+	};
+}
+
 void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
 				   u64 attr_valid)
 {
@@ -1253,28 +1275,6 @@ void fuse_dev_free(struct fuse_dev *fud)
 }
 EXPORT_SYMBOL_GPL(fuse_dev_free);
 
-static void fuse_fill_attr_from_inode(struct fuse_attr *attr,
-				      const struct fuse_inode *fi)
-{
-	*attr = (struct fuse_attr){
-		.ino		= fi->inode.i_ino,
-		.size		= fi->inode.i_size,
-		.blocks		= fi->inode.i_blocks,
-		.atime		= fi->inode.i_atime.tv_sec,
-		.mtime		= fi->inode.i_mtime.tv_sec,
-		.ctime		= fi->inode.i_ctime.tv_sec,
-		.atimensec	= fi->inode.i_atime.tv_nsec,
-		.mtimensec	= fi->inode.i_mtime.tv_nsec,
-		.ctimensec	= fi->inode.i_ctime.tv_nsec,
-		.mode		= fi->inode.i_mode,
-		.nlink		= fi->inode.i_nlink,
-		.uid		= fi->inode.i_uid.val,
-		.gid		= fi->inode.i_gid.val,
-		.rdev		= fi->inode.i_rdev,
-		.blksize	= 1u << fi->inode.i_blkbits,
-	};
-}
-
 static void fuse_sb_defaults(struct super_block *sb)
 {
 	sb->s_magic = FUSE_SUPER_MAGIC;
@@ -1318,7 +1318,7 @@ int fuse_fill_super_submount(struct super_block *sb,
 	if (parent_sb->s_subtype && !sb->s_subtype)
 		return -ENOMEM;
 
-	fuse_fill_attr_from_inode(&root_attr, parent_fi);
+	fuse_fill_attr_from_inode(&root_attr, &parent_fi->inode);
 	root = fuse_iget(sb, parent_fi->nodeid, 0, &root_attr, 0, 0);
 	/*
 	 * This inode is just a duplicate, so it is not looked up and
diff --git a/fs/fuse/readdir.c b/fs/fuse/readdir.c
index bc267832310c7..ec1faa120377e 100644
--- a/fs/fuse/readdir.c
+++ b/fs/fuse/readdir.c
@@ -121,7 +121,7 @@ static bool fuse_emit(struct file *file, struct dir_context *ctx,
 			dirent->type);
 }
 
-static int parse_dirfile(char *buf, size_t nbytes, struct file *file,
+int fuse_parse_dirfile(char *buf, size_t nbytes, struct file *file,
 			 struct dir_context *ctx)
 {
 	while (nbytes >= FUSE_NAME_OFFSET) {
@@ -360,7 +360,7 @@ static int fuse_readdir_uncached(struct file *file, struct dir_context *ctx)
 			res = parse_dirplusfile(page_address(page), res,
 						file, ctx, attr_version);
 		} else {
-			res = parse_dirfile(page_address(page), res, file,
+			res = fuse_parse_dirfile(page_address(page), res, file,
 					    ctx);
 		}
 	}
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index bf3c62dd71123..c20b3308e6fe9 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -634,6 +634,12 @@ struct fuse_read_in {
 	uint32_t	padding;
 };
 
+struct fuse_read_out {
+	uint64_t	offset;
+	uint32_t	again;
+	uint32_t	padding;
+};
+
 #define FUSE_COMPAT_WRITE_IN_SIZE 24
 
 struct fuse_write_in {
@@ -942,4 +948,41 @@ struct fuse_removemapping_one {
 #define FUSE_REMOVEMAPPING_MAX_ENTRY   \
 		(PAGE_SIZE / sizeof(struct fuse_removemapping_one))
 
+struct fuse_mount;
+
+/** One input argument of a request */
+struct fuse_in_arg {
+	unsigned size;
+	const void *value;
+};
+
+/** One output argument of a request */
+struct fuse_arg {
+	unsigned size;
+	void *value;
+};
+
+struct fuse_args {
+	uint64_t nodeid;
+	uint32_t opcode;
+	uint32_t error_in;
+	unsigned short in_numargs;
+	unsigned short out_numargs;
+	int force:1;
+	int noreply:1;
+	int nocreds:1;
+	int in_pages:1;
+	int out_pages:1;
+	int out_argvar:1;
+	int page_zeroing:1;
+	int page_replace:1;
+	int may_block:1;
+	struct fuse_in_arg in_args[3];
+	struct fuse_arg out_args[2];
+	void (*end)(struct fuse_mount *fm, struct fuse_args *args, int error);
+
+	/* Path used for completing d_canonical_path */
+	struct path *canonical_path;
+};
+
 #endif /* _LINUX_FUSE_H */
-- 
GitLab


From 6be5b06e4195b002c52a1c2c82573ea7a76ce111 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 2 Dec 2021 14:38:56 -0800
Subject: [PATCH 2236/4878] ANDROID: fuse-bpf v1

Bug: 202785178
Test: test_fuse passes on linux, feature works on cuttlefish
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I987684b799b07391ccde350e98fde7976f5601aa
---
 fs/fuse/Kconfig           |    8 +
 fs/fuse/Makefile          |    4 +-
 fs/fuse/backing.c         | 1924 +++++++++++++++++++++++++++++++++++++
 fs/fuse/dev.c             |    6 +
 fs/fuse/dir.c             |  386 +++++++-
 fs/fuse/file.c            |  107 ++-
 fs/fuse/fuse_i.h          |  519 +++++++++-
 fs/fuse/inode.c           |  179 +++-
 fs/fuse/readdir.c         |   15 +
 fs/fuse/xattr.c           |   33 +
 include/linux/bpf_types.h |    3 +
 include/uapi/linux/bpf.h  |    1 +
 include/uapi/linux/fuse.h |   25 +-
 kernel/bpf/Makefile       |    3 +
 kernel/bpf/bpf_fuse.c     |   72 ++
 kernel/bpf/btf.c          |    1 +
 16 files changed, 3214 insertions(+), 72 deletions(-)
 create mode 100644 fs/fuse/backing.c
 create mode 100644 kernel/bpf/bpf_fuse.c

diff --git a/fs/fuse/Kconfig b/fs/fuse/Kconfig
index 40ce9a1c12e5d..d6bd90b5c38ae 100644
--- a/fs/fuse/Kconfig
+++ b/fs/fuse/Kconfig
@@ -52,3 +52,11 @@ config FUSE_DAX
 
 	  If you want to allow mounting a Virtio Filesystem with the "dax"
 	  option, answer Y.
+
+config FUSE_BPF
+	bool "Adds BPF to fuse"
+	depends on FUSE_FS
+	depends on BPF
+	help
+	  Extends FUSE by adding BPF to prefilter calls and potentially pass to a
+	  backing file system
diff --git a/fs/fuse/Makefile b/fs/fuse/Makefile
index 20ed23aa16fa6..7bd922ff8604f 100644
--- a/fs/fuse/Makefile
+++ b/fs/fuse/Makefile
@@ -7,8 +7,8 @@ obj-$(CONFIG_FUSE_FS) += fuse.o
 obj-$(CONFIG_CUSE) += cuse.o
 obj-$(CONFIG_VIRTIO_FS) += virtiofs.o
 
-fuse-y := dev.o dir.o file.o inode.o control.o xattr.o acl.o readdir.o
-fuse-y += passthrough.o
+fuse-y := dev.o dir.o file.o inode.o control.o xattr.o acl.o readdir.o passthrough.o
 fuse-$(CONFIG_FUSE_DAX) += dax.o
+fuse-$(CONFIG_FUSE_BPF) += backing.o
 
 virtiofs-y := virtio_fs.o
diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
new file mode 100644
index 0000000000000..f30fe8ef5c057
--- /dev/null
+++ b/fs/fuse/backing.c
@@ -0,0 +1,1924 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * FUSE-BPF: Filesystem in Userspace with BPF
+ * Copyright (c) 2021 Google LLC
+ */
+
+#include "fuse_i.h"
+
+#include <linux/fdtable.h>
+#include <linux/filter.h>
+#include <linux/fs_stack.h>
+#include <linux/namei.h>
+
+#include "../internal.h"
+
+/* Reimplement these functions since fget_task is not exported */
+static struct file *fuse__fget_files(struct files_struct *files,
+		unsigned int fd, fmode_t mask, unsigned int refs)
+{
+	struct file *file;
+
+	rcu_read_lock();
+loop:
+	file = fcheck_files(files, fd);
+	if (file) {
+		/* File object ref couldn't be taken.
+		 * dup2() atomicity guarantee is the reason
+		 * we loop to catch the new file (or NULL pointer)
+		 */
+		if (file->f_mode & mask)
+			file = NULL;
+		else if (!get_file_rcu_many(file, refs))
+			goto loop;
+	}
+	rcu_read_unlock();
+	return file;
+}
+
+static struct file *fuse_fget_task(struct task_struct *task, unsigned int fd)
+{
+	struct file *file = NULL;
+
+	task_lock(task);
+	if (task->files)
+		file = fuse__fget_files(task->files, fd, 0, 1);
+	task_unlock(task);
+
+	return file;
+}
+
+struct file *fuse_fget(struct fuse_conn *fc, unsigned int fd)
+{
+	return fuse_fget_task(fc->task, fd);
+}
+
+struct bpf_prog *fuse_get_bpf_prog(struct fuse_conn *fc, unsigned int fd)
+{
+	struct file *bpf_file = fuse_fget(fc, fd);
+	struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
+
+	if (!bpf_file)
+		goto out;
+	/**
+	 * Two ways of getting a bpf prog from another task's fd, since
+	 * bpf_prog_get_type_dev only works with an fd
+	 *
+	 * 1) Duplicate a little of the needed code. Requires access to
+	 *    bpf_prog_fops for validation, which is not exported for modules
+	 * 2) Insert the bpf_file object into a fd from the current task
+	 *    Stupidly complex, but I think OK, as security checks are not run
+	 *    during the existence of the handle
+	 *
+	 * Best would be to upstream 1) into kernel/bpf/syscall.c and export it
+	 * for use here. Failing that, we have to use 2, since fuse must be
+	 * compilable as a module.
+	 */
+#if 0
+	if (bpf_file->f_op != &bpf_prog_fops)
+		goto out;
+
+	bpf_prog = bpf_file->private_data;
+	if (bpf_prog->type == BPF_PROG_TYPE_FUSE)
+		bpf_prog_inc(bpf_prog);
+	else
+		bpf_prog = ERR_PTR(-EINVAL);
+
+#else
+	{
+		int task_fd = get_unused_fd_flags(bpf_file->f_flags);
+
+		if (task_fd < 0)
+			goto out;
+		fd_install(task_fd, bpf_file);
+
+		bpf_prog = bpf_prog_get_type_dev(task_fd, BPF_PROG_TYPE_FUSE,
+						 false);
+		__close_fd(current->files, task_fd);
+
+		/* TODO I think this file is probably being leaked */
+		bpf_file = NULL;
+	}
+#endif
+
+out:
+	if (bpf_file)
+		fput(bpf_file);
+	return bpf_prog;
+}
+
+int fuse_open_initialize(struct fuse_args *fa, struct fuse_open_io *foio,
+			 struct inode *inode, struct file *file, bool isdir)
+{
+	foio->foi = (struct fuse_open_in) {
+		.flags = file->f_flags & ~(O_CREAT | O_EXCL | O_NOCTTY),
+	};
+
+	foio->foo = (struct fuse_open_out) {0};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(inode)->nodeid,
+		.opcode = isdir ? FUSE_OPENDIR : FUSE_OPEN,
+		.in_numargs = 1,
+		.out_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(foio->foi),
+			.value = &foio->foi,
+		},
+		.out_args[0] = (struct fuse_arg) {
+			.size = sizeof(foio->foo),
+			.value = &foio->foo,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_open_backing(struct fuse_args *fa,
+		      struct inode *inode, struct file *file, bool isdir)
+{
+	struct fuse_mount *fm = get_fuse_mount(inode);
+	const struct fuse_open_in *foi = fa->in_args[0].value;
+	struct fuse_file *ff;
+	struct fuse_dentry *fd = get_fuse_dentry(file->f_path.dentry);
+	struct file *backing_file;
+
+	ff = fuse_file_alloc(fm);
+	if (!ff)
+		return -ENOMEM;
+	file->private_data = ff;
+
+	backing_file = dentry_open(&fd->backing_path,
+				   foi->flags,
+				   current_cred());
+	if (IS_ERR(backing_file)) {
+		fuse_file_free(ff);
+		file->private_data = NULL;
+		return PTR_ERR(backing_file);
+	}
+	ff->backing_file = backing_file;
+
+	return 0;
+}
+
+void *fuse_open_finalize(struct fuse_args *fa,
+		       struct inode *inode, struct file *file, bool isdir)
+{
+	struct fuse_file *ff = file->private_data;
+	struct fuse_open_out *foo = fa->out_args[0].value;
+
+	ff->fh = foo->fh;
+	return 0;
+}
+
+int fuse_create_open_initialize(
+		struct fuse_args *fa, struct fuse_create_open_io *fcoio,
+		struct inode *dir, struct dentry *entry,
+		struct file *file, unsigned int flags, umode_t mode)
+{
+	fcoio->fci = (struct fuse_create_in) {
+		.flags = file->f_flags & ~(O_CREAT | O_EXCL | O_NOCTTY),
+		.mode = mode,
+	};
+
+	fcoio->feo = (struct fuse_entry_out) {0};
+	fcoio->foo = (struct fuse_open_out) {0};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(dir),
+		.opcode = FUSE_CREATE,
+		.in_numargs = 2,
+		.out_numargs = 2,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(fcoio->fci),
+			.value = &fcoio->fci,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+		.out_args[0] = (struct fuse_arg) {
+			.size = sizeof(fcoio->feo),
+			.value = &fcoio->feo,
+		},
+		.out_args[1] = (struct fuse_arg) {
+			.size = sizeof(fcoio->foo),
+			.value = &fcoio->foo,
+		},
+	};
+
+	return 0;
+}
+
+static int fuse_open_file_backing(struct inode *inode, struct file *file)
+{
+	struct fuse_mount *fm = get_fuse_mount(inode);
+	struct dentry *entry = file->f_path.dentry;
+	struct fuse_dentry *fuse_dentry = get_fuse_dentry(entry);
+	struct fuse_file *fuse_file;
+	struct file *backing_file;
+
+	fuse_file = fuse_file_alloc(fm);
+	if (!fuse_file)
+		return -ENOMEM;
+	file->private_data = fuse_file;
+
+	backing_file = dentry_open(&fuse_dentry->backing_path, file->f_flags,
+				   current_cred());
+	if (IS_ERR(backing_file)) {
+		fuse_file_free(fuse_file);
+		file->private_data = NULL;
+		return PTR_ERR(backing_file);
+	}
+	fuse_file->backing_file = backing_file;
+
+	return 0;
+}
+
+int fuse_create_open_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry,
+		struct file *file, unsigned int flags, umode_t mode)
+{
+	struct fuse_inode *dir_fuse_inode = get_fuse_inode(dir);
+	struct fuse_dentry *dir_fuse_dentry = get_fuse_dentry(entry->d_parent);
+	struct dentry *backing_dentry = NULL;
+	struct inode *inode = NULL;
+	struct dentry *newent;
+	int err = 0;
+	const struct fuse_create_in *fci = fa->in_args[0].value;
+
+	if (!dir_fuse_inode || !dir_fuse_dentry)
+		return -EIO;
+
+	inode_lock_nested(dir_fuse_inode->backing_inode, I_MUTEX_PARENT);
+	backing_dentry = lookup_one_len(fa->in_args[1].value,
+					dir_fuse_dentry->backing_path.dentry,
+					strlen(fa->in_args[1].value));
+	inode_unlock(dir_fuse_inode->backing_inode);
+
+	if (IS_ERR(backing_dentry))
+		return PTR_ERR(backing_dentry);
+
+	if (d_really_is_positive(backing_dentry)) {
+		err = -EIO;
+		goto out;
+	}
+
+	err = vfs_create(dir_fuse_inode->backing_inode, backing_dentry,
+			 fci->mode, true);
+	if (err)
+		goto out;
+
+	if (get_fuse_dentry(entry)->backing_path.dentry)
+		path_put(&get_fuse_dentry(entry)->backing_path);
+	get_fuse_dentry(entry)->backing_path = (struct path) {
+		.mnt = dir_fuse_dentry->backing_path.mnt,
+		.dentry = backing_dentry,
+	};
+	path_get(&get_fuse_dentry(entry)->backing_path);
+
+	inode = fuse_iget_backing(dir->i_sb,
+			get_fuse_dentry(entry)->backing_path.dentry->d_inode);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		goto out;
+	}
+
+	if (get_fuse_inode(inode)->bpf)
+		bpf_prog_put(get_fuse_inode(inode)->bpf);
+	get_fuse_inode(inode)->bpf = dir_fuse_inode->bpf;
+	if (get_fuse_inode(inode)->bpf)
+		bpf_prog_inc(dir_fuse_inode->bpf);
+
+	newent = d_splice_alias(inode, entry);
+	if (IS_ERR(newent)) {
+		err = PTR_ERR(newent);
+		goto out;
+	}
+
+	entry = newent ? newent : entry;
+	err = finish_open(file, entry, fuse_open_file_backing);
+
+out:
+	dput(backing_dentry);
+	return err;
+}
+
+void *fuse_create_open_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry,
+		struct file *file, unsigned int flags, umode_t mode)
+{
+	struct fuse_file *ff = file->private_data;
+	struct fuse_inode *fi = get_fuse_inode(file->f_inode);
+	struct fuse_entry_out *feo = fa->out_args[0].value;
+	struct fuse_open_out *foo = fa->out_args[1].value;
+
+	fi->nodeid = feo->nodeid;
+	ff->fh = foo->fh;
+	return 0;
+}
+
+int fuse_release_initialize(struct fuse_args *fa, struct fuse_release_in *fri,
+			    struct inode *inode, struct file *file)
+{
+	struct fuse_file *fuse_file = file->private_data;
+
+	/* Always put backing file whatever bpf/userspace says */
+	fput(fuse_file->backing_file);
+
+	*fri = (struct fuse_release_in) {
+		.fh = ((struct fuse_file *)(file->private_data))->fh,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(inode)->nodeid,
+		.opcode = FUSE_RELEASE,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*fri),
+		.in_args[0].value = fri,
+	};
+
+	return 0;
+}
+
+int fuse_releasedir_initialize(struct fuse_args *fa,
+			struct fuse_release_in *fri,
+			struct inode *inode, struct file *file)
+{
+	struct fuse_file *fuse_file = file->private_data;
+
+	/* Always put backing file whatever bpf/userspace says */
+	fput(fuse_file->backing_file);
+
+	*fri = (struct fuse_release_in) {
+		.fh = ((struct fuse_file *)(file->private_data))->fh,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(inode)->nodeid,
+		.opcode = FUSE_RELEASEDIR,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*fri),
+		.in_args[0].value = fri,
+	};
+
+	return 0;
+}
+
+int fuse_release_backing(struct fuse_args *fa,
+			 struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+void *fuse_release_finalize(struct fuse_args *fa,
+			    struct inode *inode, struct file *file)
+{
+	fuse_file_free(file->private_data);
+	return NULL;
+}
+
+int fuse_flush_initialize(struct fuse_args *fa, struct fuse_flush_in *ffi,
+			   struct file *file, fl_owner_t id)
+{
+	struct fuse_file *fuse_file = file->private_data;
+
+	*ffi = (struct fuse_flush_in) {
+		.fh = fuse_file->fh,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(file->f_inode),
+		.opcode = FUSE_FLUSH,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*ffi),
+		.in_args[0].value = ffi,
+		.force = true,
+	};
+
+	return 0;
+}
+
+int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id)
+{
+	struct fuse_file *fuse_file = file->private_data;
+	struct file *backing_file = fuse_file->backing_file;
+
+	if (backing_file->f_op->flush)
+		return backing_file->f_op->flush(backing_file, id);
+	return 0;
+}
+
+void *fuse_flush_finalize(struct fuse_args *fa, struct file *file, fl_owner_t id)
+{
+	return NULL;
+}
+
+int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+		   struct file *file, loff_t start, loff_t end, int datasync)
+{
+	struct fuse_file *fuse_file = file->private_data;
+
+	*ffi = (struct fuse_fsync_in) {
+		.fh = fuse_file->fh,
+		.fsync_flags = datasync ? FUSE_FSYNC_FDATASYNC : 0,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(file->f_inode)->nodeid,
+		.opcode = FUSE_FSYNC,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*ffi),
+		.in_args[0].value = ffi,
+		.force = true,
+	};
+
+	return 0;
+}
+
+int fuse_fsync_backing(struct fuse_args *fa,
+		   struct file *file, loff_t start, loff_t end, int datasync)
+{
+	struct fuse_file *fuse_file = file->private_data;
+	struct file *backing_file = fuse_file->backing_file;
+	const struct fuse_fsync_in *ffi = fa->in_args[0].value;
+	int new_datasync = (ffi->fsync_flags & FUSE_FSYNC_FDATASYNC) ? 1 : 0;
+
+	return vfs_fsync(backing_file, new_datasync);
+}
+
+void *fuse_fsync_finalize(struct fuse_args *fa,
+		   struct file *file, loff_t start, loff_t end, int datasync)
+{
+	return NULL;
+}
+
+int fuse_dir_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+		   struct file *file, loff_t start, loff_t end, int datasync)
+{
+	struct fuse_file *fuse_file = file->private_data;
+
+	*ffi = (struct fuse_fsync_in) {
+		.fh = fuse_file->fh,
+		.fsync_flags = datasync ? FUSE_FSYNC_FDATASYNC : 0,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(file->f_inode)->nodeid,
+		.opcode = FUSE_FSYNCDIR,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*ffi),
+		.in_args[0].value = ffi,
+		.force = true,
+	};
+
+	return 0;
+}
+
+int fuse_getxattr_initialize(struct fuse_args *fa,
+		struct fuse_getxattr_io *fgio,
+		struct dentry *dentry, const char *name, void *value,
+		size_t size)
+{
+	*fgio = (struct fuse_getxattr_io) {
+		.fgi.size = size,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
+		.opcode = FUSE_GETXATTR,
+		.in_numargs = 2,
+		.out_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(fgio->fgi),
+			.value = &fgio->fgi,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = strlen(name) + 1,
+			.value = name,
+		},
+		.out_argvar = size ? true : false,
+		.out_args[0].size = size ? size : sizeof(fgio->fgo),
+		.out_args[0].value = size ? value : &fgio->fgo,
+	};
+
+	return 0;
+}
+
+int fuse_getxattr_backing(struct fuse_args *fa,
+		struct dentry *dentry, const char *name, void *value,
+		size_t size)
+{
+	ssize_t ret = vfs_getxattr(get_fuse_dentry(dentry)->backing_path.dentry,
+				   fa->in_args[1].value, value, size);
+
+	if (fa->out_argvar)
+		fa->out_args[0].size = ret;
+	else
+		((struct fuse_getxattr_out *)fa->out_args[0].value)->size = ret;
+
+	return 0;
+}
+
+void *fuse_getxattr_finalize(struct fuse_args *fa,
+		struct dentry *dentry, const char *name, void *value,
+		size_t size)
+{
+	struct fuse_getxattr_out *fgo;
+
+	if (fa->out_argvar)
+		return ERR_PTR(fa->out_args[0].size);
+
+	fgo = fa->out_args[0].value;
+
+	return ERR_PTR(fgo->size);
+
+}
+
+int fuse_listxattr_initialize(struct fuse_args *fa,
+			      struct fuse_getxattr_io *fgio,
+			      struct dentry *dentry, char *list, size_t size)
+{
+	*fgio = (struct fuse_getxattr_io){
+		.fgi.size = size,
+	};
+
+	*fa = (struct fuse_args){
+		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
+		.opcode = FUSE_LISTXATTR,
+		.in_numargs = 1,
+		.out_numargs = 1,
+		.in_args[0] =
+			(struct fuse_in_arg){
+				.size = sizeof(fgio->fgi),
+				.value = &fgio->fgi,
+			},
+		.out_argvar = size ? true : false,
+		.out_args[0].size = size ? size : sizeof(fgio->fgo),
+		.out_args[0].value = size ? (void *)list : &fgio->fgo,
+	};
+
+	return 0;
+}
+
+int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+			   char *list, size_t size)
+{
+	ssize_t ret =
+		vfs_listxattr(get_fuse_dentry(dentry)->backing_path.dentry,
+			      list, size);
+
+	if (fa->out_argvar)
+		fa->out_args[0].size = ret;
+	else
+		((struct fuse_getxattr_out *)fa->out_args[0].value)->size = ret;
+
+	return 0;
+}
+
+void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+			      char *list, size_t size)
+{
+	struct fuse_getxattr_out *fgo;
+
+	if (fa->out_argvar)
+		return ERR_PTR(fa->out_args[0].size);
+
+	fgo = fa->out_args[0].value;
+
+	return ERR_PTR(fgo->size);
+}
+
+int fuse_setxattr_initialize(struct fuse_args *fa,
+			     struct fuse_setxattr_in *fsxi,
+			     struct dentry *dentry, const char *name,
+			     const void *value, size_t size, int flags)
+{
+	*fsxi = (struct fuse_setxattr_in) {
+		.size = size,
+		.flags = flags,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
+		.opcode = FUSE_SETXATTR,
+		.in_numargs = 3,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(*fsxi),
+			.value = fsxi,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = strlen(name) + 1,
+			.value = name,
+		},
+		.in_args[2] = (struct fuse_in_arg) {
+			.size = size,
+			.value = value,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_setxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+			  const char *name, const void *value, size_t size,
+			  int flags)
+{
+	return vfs_setxattr(get_fuse_dentry(dentry)->backing_path.dentry, name,
+			    value, size, flags);
+}
+
+void *fuse_setxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+			     const char *name, const void *value, size_t size,
+			     int flags)
+{
+	return NULL;
+}
+
+int fuse_file_read_iter_initialize(
+		struct fuse_args *fa, struct fuse_read_in *fri,
+		struct kiocb *iocb, struct iov_iter *to)
+{
+	struct file *file = iocb->ki_filp;
+	struct fuse_file *ff = file->private_data;
+
+	*fri = (struct fuse_read_in) {
+		.fh = ff->fh,
+		.offset = iocb->ki_pos,
+		.size = to->count,
+	};
+
+	/* TODO we can't assume 'to' is a kvec */
+	/* TODO we also can't assume the vector has only one component */
+	*fa = (struct fuse_args) {
+		.opcode = FUSE_READ,
+		.nodeid = ff->nodeid,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*fri),
+		.in_args[0].value = fri,
+		.out_numargs = 1,
+		.out_args[0].size = fri->size,
+		.out_args[0].value = to->kvec->iov_base,
+		/*
+		 * TODO Design this properly.
+		 * Possible approach: do not pass buf to bpf
+		 * If going to userland, do a deep copy
+		 * For extra credit, do that to/from the vector, rather than
+		 * making an extra copy in the kernel
+		 */
+	};
+
+	return 0;
+}
+
+int fuse_file_read_iter_backing(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *to)
+{
+	struct file *file = iocb->ki_filp;
+	struct fuse_file *ff = file->private_data;
+	ssize_t result;
+
+	/* TODO This just plain ignores any change to fuse_read_in */
+	result = vfs_iter_read(ff->backing_file, to, &iocb->ki_pos, 0);
+
+	if (result < 0)
+		return result;
+
+	/* TODO Need to point value at the buffer for post-modification */
+	fa->out_args[0].size = result;
+	return result;
+}
+
+void *fuse_file_read_iter_finalize(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *to)
+{
+	return ERR_PTR(fa->out_args[0].size);
+}
+
+int fuse_file_write_iter_initialize(
+		struct fuse_args *fa, struct fuse_file_write_iter_io *fwio,
+		struct kiocb *iocb, struct iov_iter *from)
+{
+	struct file *file = iocb->ki_filp;
+	struct fuse_file *ff = file->private_data;
+
+	*fwio = (struct fuse_file_write_iter_io) {
+		.fwi.fh = ff->fh,
+		.fwi.offset = iocb->ki_pos,
+		.fwi.size = from->count,
+	};
+
+	/* TODO we can't assume 'from' is a kvec */
+	*fa = (struct fuse_args) {
+		.opcode = FUSE_WRITE,
+		.nodeid = ff->nodeid,
+		.in_numargs = 2,
+		.in_args[0].size = sizeof(fwio->fwi),
+		.in_args[0].value = &fwio->fwi,
+		.in_args[1].size = fwio->fwi.size,
+		.in_args[1].value = from->kvec->iov_base,
+		.out_numargs = 1,
+		.out_args[0].size = sizeof(fwio->fwo),
+		.out_args[0].value = &fwio->fwo,
+	};
+
+	return 0;
+}
+
+int fuse_file_write_iter_backing(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *from)
+{
+	struct file *file = iocb->ki_filp;
+	struct fuse_file *ff = file->private_data;
+	struct fuse_write_out *fwo = fa->out_args[0].value;
+
+	/* TODO This just plain ignores any change to fuse_write_in */
+	fwo->size = vfs_iter_write(ff->backing_file, from, &iocb->ki_pos, 0);
+
+	if (fwo->size < 0)
+		return fwo->size;
+	return 0;
+}
+
+void *fuse_file_write_iter_finalize(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *from)
+{
+	struct fuse_write_out *fwo = fa->out_args[0].value;
+
+	return ERR_PTR(fwo->size);
+}
+
+int fuse_file_fallocate_initialize(struct fuse_args *fa,
+		struct fuse_fallocate_in *ffi,
+		struct file *file, int mode, loff_t offset, loff_t length)
+{
+	struct fuse_file *ff = file->private_data;
+
+	*ffi = (struct fuse_fallocate_in) {
+		.fh = ff->fh,
+		.offset = offset,
+		.length = length,
+		.mode = mode
+	};
+
+	*fa = (struct fuse_args) {
+		.opcode = FUSE_FALLOCATE,
+		.nodeid = ff->nodeid,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*ffi),
+		.in_args[0].value = ffi,
+	};
+
+	return 0;
+}
+
+int fuse_file_fallocate_backing(struct fuse_args *fa,
+		struct file *file, int mode, loff_t offset, loff_t length)
+{
+	const struct fuse_fallocate_in *ffi = fa->in_args[0].value;
+	struct fuse_file *ff = file->private_data;
+
+	return vfs_fallocate(ff->backing_file, ffi->mode, ffi->offset,
+			     ffi->length);
+}
+
+void *fuse_file_fallocate_finalize(struct fuse_args *fa,
+		struct file *file, int mode, loff_t offset, loff_t length)
+{
+	return NULL;
+}
+
+/*******************************************************************************
+ * Directory operations after here                                             *
+ ******************************************************************************/
+
+int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *fli,
+	       struct inode *dir, struct dentry *entry, unsigned int flags)
+{
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(dir)->nodeid,
+		.opcode = FUSE_LOOKUP,
+		.in_numargs = 1,
+		.out_numargs = 2,
+		.out_argvar = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+		.out_args[0] = (struct fuse_arg) {
+			.size = sizeof(fli->feo),
+			.value = &fli->feo,
+		},
+		.out_args[1] = (struct fuse_arg) {
+			.size = sizeof(fli->febo),
+			.value = &fli->febo,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_lookup_backing(struct fuse_args *fa, struct inode *dir,
+			  struct dentry *entry, unsigned int flags)
+{
+	struct fuse_dentry *fuse_entry = get_fuse_dentry(entry);
+	struct fuse_dentry *dir_fuse_entry = get_fuse_dentry(entry->d_parent);
+	struct dentry *dir_backing_entry = dir_fuse_entry->backing_path.dentry;
+	struct inode *dir_backing_inode = dir_backing_entry->d_inode;
+	struct dentry *backing_entry;
+
+	/* TODO this will not handle lookups over mount points */
+	inode_lock_nested(dir_backing_inode, I_MUTEX_PARENT);
+	backing_entry = lookup_one_len(entry->d_name.name, dir_backing_entry,
+					strlen(entry->d_name.name));
+	inode_unlock(dir_backing_inode);
+
+	if (IS_ERR(backing_entry))
+		return PTR_ERR(backing_entry);
+
+	fuse_entry->backing_path = (struct path) {
+		.dentry = backing_entry,
+		.mnt = dir_fuse_entry->backing_path.mnt,
+	};
+
+	mntget(fuse_entry->backing_path.mnt);
+	return 0;
+}
+
+struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
+			   struct dentry *entry, unsigned int flags)
+{
+	struct fuse_dentry *fd;
+	struct dentry *bd;
+	struct inode *inode, *backing_inode;
+	struct fuse_entry_out *feo = fa->out_args[0].value;
+	struct fuse_entry_bpf_out *febo = fa->out_args[1].value;
+
+	fd = get_fuse_dentry(entry);
+	if (!fd)
+		return ERR_PTR(-EIO);
+	bd = fd->backing_path.dentry;
+	if (!bd)
+		return ERR_PTR(-ENOENT);
+	backing_inode = bd->d_inode;
+	if (!backing_inode)
+		return 0;
+
+	inode = fuse_iget_backing(dir->i_sb, backing_inode);
+
+	if (IS_ERR(inode))
+		return ERR_PTR(PTR_ERR(inode));
+
+	/* TODO Make sure this handles invalid handles */
+	/* TODO Do we need the same code in revalidate */
+	if (get_fuse_inode(inode)->bpf) {
+		bpf_prog_put(get_fuse_inode(inode)->bpf);
+		get_fuse_inode(inode)->bpf = NULL;
+	}
+
+	switch (febo->bpf_action) {
+	case FUSE_ACTION_KEEP:
+		get_fuse_inode(inode)->bpf = get_fuse_inode(dir)->bpf;
+		if (get_fuse_inode(inode)->bpf)
+			bpf_prog_inc(get_fuse_inode(inode)->bpf);
+		break;
+
+	case FUSE_ACTION_REMOVE:
+		get_fuse_inode(inode)->bpf = NULL;
+		break;
+
+	case FUSE_ACTION_REPLACE: {
+		struct fuse_conn *fc = get_fuse_mount(dir)->fc;
+		struct bpf_prog *bpf_prog = fuse_get_bpf_prog(fc, febo->bpf_fd);
+
+		if (IS_ERR(bpf_prog))
+			return ERR_PTR(PTR_ERR(bpf_prog));
+
+		get_fuse_inode(inode)->bpf = bpf_prog;
+		break;
+	}
+
+	default:
+		return ERR_PTR(-EIO);
+	}
+
+	switch (febo->backing_action) {
+	case FUSE_ACTION_KEEP:
+		/* backing inode/path are added in fuse_lookup_backing */
+		break;
+
+	case FUSE_ACTION_REMOVE:
+		iput(get_fuse_inode(inode)->backing_inode);
+		get_fuse_inode(inode)->backing_inode = NULL;
+		path_put_init(&get_fuse_dentry(entry)->backing_path);
+		break;
+
+	case FUSE_ACTION_REPLACE: {
+		struct fuse_conn *fc;
+		struct file *backing_file;
+
+		fc = get_fuse_mount(dir)->fc;
+		backing_file = fuse_fget(fc, febo->backing_fd);
+		if (!backing_file)
+			return ERR_PTR(-EIO);
+
+		iput(get_fuse_inode(inode)->backing_inode);
+		get_fuse_inode(inode)->backing_inode =
+			backing_file->f_inode;
+		ihold(get_fuse_inode(inode)->backing_inode);
+
+		path_put(&get_fuse_dentry(entry)->backing_path);
+		get_fuse_dentry(entry)->backing_path = backing_file->f_path;
+		path_get(&get_fuse_dentry(entry)->backing_path);
+
+		fput(backing_file);
+		break;
+	}
+
+	default:
+		return ERR_PTR(-EIO);
+	}
+
+	get_fuse_inode(inode)->nodeid = feo->nodeid;
+
+	return d_splice_alias(inode, entry);
+}
+
+int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
+			   struct dentry *entry, unsigned int flags)
+{
+	struct fuse_dentry *fuse_dentry = get_fuse_dentry(entry);
+	struct dentry *backing_entry = fuse_dentry->backing_path.dentry;
+
+	if (unlikely(backing_entry->d_flags & DCACHE_OP_REVALIDATE))
+		return backing_entry->d_op->d_revalidate(backing_entry, flags);
+	return 1;
+}
+
+void *fuse_revalidate_finalize(struct fuse_args *fa, struct inode *dir,
+			   struct dentry *entry, unsigned int flags)
+{
+	return 0;
+}
+
+int fuse_mknod_initialize(
+		struct fuse_args *fa, struct fuse_mknod_in *fmi,
+		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
+{
+	*fmi = (struct fuse_mknod_in) {
+		.mode = mode,
+		.rdev = new_encode_dev(rdev),
+		.umask = current_umask(),
+	};
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(dir),
+		.opcode = FUSE_MKNOD,
+		.in_numargs = 2,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(*fmi),
+			.value = fmi,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_mknod_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
+{
+	int err = 0;
+	const struct fuse_mknod_in *fmi = fa->in_args[0].value;
+	struct inode *backing_inode = get_fuse_inode(dir)->backing_inode;
+	struct path backing_path = {};
+	struct inode *inode = NULL;
+
+	//TODO Actually deal with changing the backing entry in mknod
+	get_fuse_backing_path(entry, &backing_path);
+	if (!backing_path.dentry)
+		return -EBADF;
+
+	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+	err = vfs_mknod(backing_inode, backing_path.dentry,
+			fmi->mode & ~fmi->umask, new_decode_dev(fmi->rdev));
+	inode_unlock(backing_inode);
+	if (err)
+		goto out;
+	if (d_really_is_negative(backing_path.dentry) ||
+		unlikely(d_unhashed(backing_path.dentry))) {
+		err = -EINVAL;
+		/**
+		 * TODO: overlayfs responds to this situation with a
+		 * lookupOneLen. Should we do that too?
+		 */
+		goto out;
+	}
+	inode = fuse_iget_backing(dir->i_sb, backing_inode);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		goto out;
+	}
+	d_instantiate(entry, inode);
+out:
+	path_put(&backing_path);
+	return err;
+}
+
+void *fuse_mknod_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
+{
+	return NULL;
+}
+
+int fuse_mkdir_initialize(
+		struct fuse_args *fa, struct fuse_mkdir_in *fmi,
+		struct inode *dir, struct dentry *entry, umode_t mode)
+{
+	*fmi = (struct fuse_mkdir_in) {
+		.mode = mode,
+		.umask = current_umask(),
+	};
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(dir),
+		.opcode = FUSE_MKDIR,
+		.in_numargs = 2,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(*fmi),
+			.value = fmi,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_mkdir_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode)
+{
+	int err = 0;
+	const struct fuse_mkdir_in *fmi = fa->in_args[0].value;
+	struct inode *backing_inode = get_fuse_inode(dir)->backing_inode;
+	struct path backing_path = {};
+	struct inode *inode = NULL;
+
+	//TODO Actually deal with changing the backing entry in mkdir
+	get_fuse_backing_path(entry, &backing_path);
+	if (!backing_path.dentry)
+		return -EBADF;
+
+	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+	err = vfs_mkdir(backing_inode, backing_path.dentry, fmi->mode & ~fmi->umask);
+	inode_unlock(backing_inode);
+	if (err)
+		goto out;
+	if (d_really_is_negative(backing_path.dentry) ||
+		unlikely(d_unhashed(backing_path.dentry))) {
+		err = -EINVAL;
+		/**
+		 * TODO: overlayfs responds to this situation with a
+		 * lookupOneLen. Should we do that too?
+		 */
+		goto out;
+	}
+	inode = fuse_iget_backing(dir->i_sb, backing_inode);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		goto out;
+	}
+	d_instantiate(entry, inode);
+out:
+	path_put(&backing_path);
+	return err;
+}
+
+void *fuse_mkdir_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode)
+{
+	return NULL;
+}
+
+int fuse_rmdir_initialize(
+		struct fuse_args *fa, struct fuse_dummy_io *dummy,
+		struct inode *dir, struct dentry *entry)
+{
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(dir),
+		.opcode = FUSE_RMDIR,
+		.in_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_rmdir_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry)
+{
+	int err = 0;
+	struct path backing_path = {};
+	struct dentry *backing_parent_dentry;
+	struct inode *backing_inode;
+
+	/* TODO Actually deal with changing the backing entry in rmdir */
+	get_fuse_backing_path(entry, &backing_path);
+	if (!backing_path.dentry)
+		return -EBADF;
+
+	/* TODO Not sure if we should reverify like overlayfs, or get inode from d_parent */
+	backing_parent_dentry = dget_parent(backing_path.dentry);
+	backing_inode = d_inode(backing_parent_dentry);
+
+	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+	err = vfs_rmdir(backing_inode, backing_path.dentry);
+	inode_unlock(backing_inode);
+
+	dput(backing_parent_dentry);
+	if (!err)
+		d_drop(entry);
+	path_put(&backing_path);
+	return err;
+}
+
+void *fuse_rmdir_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry)
+{
+	return NULL;
+}
+
+static int fuse_rename_backing_common(
+			 struct inode *olddir, struct dentry *oldent,
+			 struct inode *newdir, struct dentry *newent,
+			 unsigned int flags)
+{
+	int err = 0;
+	struct path old_backing_path;
+	struct path new_backing_path;
+	struct dentry *old_backing_dir_dentry;
+	struct dentry *old_backing_dentry;
+	struct dentry *new_backing_dir_dentry;
+	struct dentry *new_backing_dentry;
+	struct dentry *trap = NULL;
+	struct inode *target_inode;
+
+	//TODO Actually deal with changing anything that isn't a flag
+	get_fuse_backing_path(oldent, &old_backing_path);
+	if (!old_backing_path.dentry)
+		return -EBADF;
+	get_fuse_backing_path(newent, &new_backing_path);
+	if (!new_backing_path.dentry) {
+		err = -EBADF;
+		goto put_old_path;
+	}
+	if (new_backing_path.mnt != old_backing_path.mnt) {
+		err = -EXDEV;
+		goto put_new_path;
+	}
+	old_backing_dentry = old_backing_path.dentry;
+	new_backing_dentry = new_backing_path.dentry;
+	old_backing_dir_dentry = dget_parent(old_backing_dentry);
+	new_backing_dir_dentry = dget_parent(new_backing_dentry);
+	target_inode = d_inode(newent);
+
+	trap = lock_rename(old_backing_dir_dentry, new_backing_dir_dentry);
+	if (trap == old_backing_dentry) {
+		err = -EINVAL;
+		goto put_parents;
+	}
+	if (trap == new_backing_dentry) {
+		err = -ENOTEMPTY;
+		goto put_parents;
+	}
+	err = vfs_rename(d_inode(old_backing_dir_dentry), old_backing_dentry,
+			 d_inode(new_backing_dir_dentry), new_backing_dentry,
+			 NULL, flags);
+	if (err)
+		goto unlock;
+	if (target_inode)
+		fsstack_copy_attr_all(target_inode,
+				get_fuse_inode(target_inode)->backing_inode);
+	fsstack_copy_attr_all(newdir, d_inode(new_backing_dir_dentry));
+unlock:
+	unlock_rename(old_backing_dir_dentry, new_backing_dir_dentry);
+put_parents:
+	dput(new_backing_dir_dentry);
+	dput(old_backing_dir_dentry);
+put_new_path:
+	path_put(&new_backing_path);
+put_old_path:
+	path_put(&old_backing_path);
+	return err;
+}
+
+int fuse_rename2_initialize(struct fuse_args *fa, struct fuse_rename2_in *fri,
+			    struct inode *olddir, struct dentry *oldent,
+			    struct inode *newdir, struct dentry *newent,
+			    unsigned int flags)
+{
+	*fri = (struct fuse_rename2_in) {
+		.newdir = get_node_id(newdir),
+		.flags = flags,
+	};
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(olddir),
+		.opcode = FUSE_RENAME2,
+		.in_numargs = 3,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(*fri),
+			.value = fri,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = oldent->d_name.len + 1,
+			.value = oldent->d_name.name,
+		},
+		.in_args[2] = (struct fuse_in_arg) {
+			.size = newent->d_name.len + 1,
+			.value = newent->d_name.name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_rename2_backing(struct fuse_args *fa,
+			 struct inode *olddir, struct dentry *oldent,
+			 struct inode *newdir, struct dentry *newent,
+			 unsigned int flags)
+{
+	const struct fuse_rename2_in *fri = fa->in_args[0].value;
+
+	/* TODO: deal with changing dirs/ents */
+	return fuse_rename_backing_common(olddir, oldent, newdir, newent, fri->flags);
+}
+
+void *fuse_rename2_finalize(struct fuse_args *fa,
+			    struct inode *olddir, struct dentry *oldent,
+			    struct inode *newdir, struct dentry *newent,
+			    unsigned int flags)
+{
+	return NULL;
+}
+
+int fuse_rename_initialize(struct fuse_args *fa, struct fuse_rename_in *fri,
+			   struct inode *olddir, struct dentry *oldent,
+			   struct inode *newdir, struct dentry *newent)
+{
+	*fri = (struct fuse_rename_in) {
+		.newdir = get_node_id(newdir),
+	};
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(olddir),
+		.opcode = FUSE_RENAME,
+		.in_numargs = 3,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(*fri),
+			.value = fri,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = oldent->d_name.len + 1,
+			.value = oldent->d_name.name,
+		},
+		.in_args[2] = (struct fuse_in_arg) {
+			.size = newent->d_name.len + 1,
+			.value = newent->d_name.name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_rename_backing(struct fuse_args *fa,
+			struct inode *olddir, struct dentry *oldent,
+			struct inode *newdir, struct dentry *newent)
+{
+	/* TODO: deal with changing dirs/ents */
+	return fuse_rename_backing_common(olddir, oldent, newdir, newent, 0);
+}
+
+void *fuse_rename_finalize(struct fuse_args *fa,
+			   struct inode *olddir, struct dentry *oldent,
+			   struct inode *newdir, struct dentry *newent)
+{
+	return NULL;
+}
+
+int fuse_unlink_initialize(
+		struct fuse_args *fa, struct fuse_dummy_io *dummy,
+		struct inode *dir, struct dentry *entry)
+{
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(dir),
+		.opcode = FUSE_UNLINK,
+		.in_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_unlink_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry)
+{
+	int err = 0;
+	struct path backing_path = {};
+	struct dentry *backing_parent_dentry;
+	struct inode *backing_inode;
+
+	/* TODO Actually deal with changing the backing entry in unlink */
+	get_fuse_backing_path(entry, &backing_path);
+	if (!backing_path.dentry)
+		return -EBADF;
+
+	/* TODO Not sure if we should reverify like overlayfs, or get inode from d_parent */
+	backing_parent_dentry = dget_parent(backing_path.dentry);
+	backing_inode = d_inode(backing_parent_dentry);
+
+	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+	err = vfs_unlink(backing_inode, backing_path.dentry, NULL);
+	inode_unlock(backing_inode);
+
+	dput(backing_parent_dentry);
+	if (!err)
+		d_drop(entry);
+	path_put(&backing_path);
+	return err;
+}
+
+void *fuse_unlink_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry)
+{
+	return NULL;
+}
+
+int fuse_link_initialize(struct fuse_args *fa, struct fuse_link_in *fli,
+			 struct dentry *entry, struct inode *dir,
+			 struct dentry *newent)
+{
+	struct inode *src_inode = entry->d_inode;
+
+	*fli = (struct fuse_link_in){
+		.oldnodeid = get_node_id(src_inode),
+	};
+
+	fa->opcode = FUSE_LINK;
+	fa->in_numargs = 2;
+	fa->in_args[0].size = sizeof(*fli);
+	fa->in_args[0].value = fli;
+	fa->in_args[1].size = newent->d_name.len + 1;
+	fa->in_args[1].value = newent->d_name.name;
+
+	return 0;
+}
+
+int fuse_link_backing(struct fuse_args *fa, struct dentry *entry,
+		      struct inode *dir, struct dentry *newent)
+{
+	int err = 0;
+	struct path backing_old_path = {};
+	struct path backing_new_path = {};
+	struct dentry *backing_dir_dentry;
+	struct inode *fuse_new_inode = NULL;
+	struct inode *backing_dir_inode = get_fuse_inode(dir)->backing_inode;
+
+	get_fuse_backing_path(entry, &backing_old_path);
+	if (!backing_old_path.dentry)
+		return -EBADF;
+
+	get_fuse_backing_path(newent, &backing_new_path);
+	if (!backing_new_path.dentry) {
+		err = -EBADF;
+		goto err_dst_path;
+	}
+
+	backing_dir_dentry = dget_parent(backing_new_path.dentry);
+	backing_dir_inode = d_inode(backing_dir_dentry);
+
+	inode_lock_nested(backing_dir_inode, I_MUTEX_PARENT);
+	err = vfs_link(backing_old_path.dentry, backing_dir_inode, backing_new_path.dentry, NULL);
+	inode_unlock(backing_dir_inode);
+	if (err)
+		goto out;
+
+	if (d_really_is_negative(backing_new_path.dentry) ||
+	    unlikely(d_unhashed(backing_new_path.dentry))) {
+		err = -EINVAL;
+		/**
+		 * TODO: overlayfs responds to this situation with a
+		 * lookupOneLen. Should we do that too?
+		 */
+		goto out;
+	}
+
+	fuse_new_inode = fuse_iget_backing(dir->i_sb, backing_dir_inode);
+	if (IS_ERR(fuse_new_inode)) {
+		err = PTR_ERR(fuse_new_inode);
+		goto out;
+	}
+	d_instantiate(newent, fuse_new_inode);
+
+out:
+	dput(backing_dir_dentry);
+	path_put(&backing_new_path);
+err_dst_path:
+	path_put(&backing_old_path);
+	return err;
+}
+
+void *fuse_link_finalize(struct fuse_args *fa, struct dentry *entry,
+			 struct inode *dir, struct dentry *newent)
+{
+	return NULL;
+}
+
+int fuse_getattr_initialize(struct fuse_args *fa, struct fuse_getattr_io *fgio,
+			const struct dentry *entry, struct kstat *stat,
+			u32 request_mask, unsigned int flags)
+{
+	fgio->fgi = (struct fuse_getattr_in) {
+		.getattr_flags = flags,
+		.fh = -1, /* TODO is this OK? */
+	};
+
+	fgio->fao = (struct fuse_attr_out) {0};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(entry->d_inode),
+		.opcode = FUSE_GETATTR,
+		.in_numargs = 1,
+		.out_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(fgio->fgi),
+			.value = &fgio->fgi,
+		},
+		.out_args[0] = (struct fuse_arg) {
+			.size = sizeof(fgio->fao),
+			.value = &fgio->fao,
+		},
+	};
+
+	return 0;
+}
+
+static void fuse_stat_to_attr(struct fuse_conn *fc, struct inode *inode,
+		struct kstat *stat, struct fuse_attr *attr)
+{
+	unsigned int blkbits;
+
+	/* see the comment in fuse_change_attributes() */
+	if (fc->writeback_cache && S_ISREG(inode->i_mode)) {
+		stat->size = i_size_read(inode);
+		stat->mtime.tv_sec = inode->i_mtime.tv_sec;
+		stat->mtime.tv_nsec = inode->i_mtime.tv_nsec;
+		stat->ctime.tv_sec = inode->i_ctime.tv_sec;
+		stat->ctime.tv_nsec = inode->i_ctime.tv_nsec;
+	}
+
+	attr->ino = stat->ino;
+	attr->mode = (inode->i_mode & S_IFMT) | (stat->mode & 07777);
+	attr->nlink = stat->nlink;
+	attr->uid = from_kuid(fc->user_ns, stat->uid);
+	attr->gid = from_kgid(fc->user_ns, stat->gid);
+	attr->atime = stat->atime.tv_sec;
+	attr->atimensec = stat->atime.tv_nsec;
+	attr->mtime = stat->mtime.tv_sec;
+	attr->mtimensec = stat->mtime.tv_nsec;
+	attr->ctime = stat->ctime.tv_sec;
+	attr->ctimensec = stat->ctime.tv_nsec;
+	attr->size = stat->size;
+	attr->blocks = stat->blocks;
+
+	if (stat->blksize != 0)
+		blkbits = ilog2(stat->blksize);
+	else
+		blkbits = inode->i_sb->s_blocksize_bits;
+
+	attr->blksize = 1 << blkbits;
+}
+
+int fuse_getattr_backing(struct fuse_args *fa,
+		const struct dentry *entry, struct kstat *stat,
+			u32 request_mask, unsigned int flags)
+{
+	struct path *backing_path =
+		&get_fuse_dentry(entry)->backing_path;
+	struct inode *backing_inode = backing_path->dentry->d_inode;
+	struct fuse_attr_out *fao = fa->out_args[0].value;
+	struct kstat tmp;
+	int err;
+
+	if (!stat)
+		stat = &tmp;
+
+	err = vfs_getattr(backing_path, stat, request_mask, flags);
+
+	if (!err)
+		fuse_stat_to_attr(get_fuse_conn(entry->d_inode),
+				  backing_inode, stat, &fao->attr);
+
+	return err;
+}
+
+void *fuse_getattr_finalize(struct fuse_args *fa,
+			const struct dentry *entry, struct kstat *stat,
+			u32 request_mask, unsigned int flags)
+{
+	struct fuse_attr_out *outarg = fa->out_args[0].value;
+	struct inode *inode = entry->d_inode;
+	u64 attr_version = fuse_get_attr_version(get_fuse_mount(inode)->fc);
+	int err = 0;
+
+	/* TODO: Ensure this doesn't happen if we had an error getting attrs in
+	 * backing.
+	 */
+	err = finalize_attr(inode, outarg, attr_version, stat);
+	return ERR_PTR(err);
+}
+
+static void fattr_to_iattr(const struct fuse_setattr_in *arg,
+			   struct iattr *iattr)
+{
+	unsigned int ivalid = arg->valid;
+
+	if (ivalid & ATTR_MODE)
+		iattr->ia_valid |= FATTR_MODE, iattr->ia_mode = arg->mode;
+	if (ivalid & ATTR_UID) {
+		iattr->ia_valid |= FATTR_UID;
+		iattr->ia_uid = KUIDT_INIT(arg->uid);
+	}
+	if (ivalid & ATTR_GID) {
+		iattr->ia_valid |= FATTR_GID;
+		iattr->ia_gid = KGIDT_INIT(arg->gid);
+	}
+	if (ivalid & ATTR_SIZE)
+		iattr->ia_valid |= FATTR_SIZE,  iattr->ia_size = arg->size;
+	if (ivalid & ATTR_ATIME) {
+		iattr->ia_valid |= FATTR_ATIME;
+		iattr->ia_atime.tv_sec = arg->atime;
+		iattr->ia_atime.tv_nsec = arg->atimensec;
+		if (!(ivalid & ATTR_ATIME_SET))
+			iattr->ia_valid |= FATTR_ATIME_NOW;
+	}
+	if (ivalid & ATTR_MTIME) {
+		iattr->ia_valid |= FATTR_MTIME;
+		iattr->ia_mtime.tv_sec = arg->mtime;
+		iattr->ia_mtime.tv_nsec = arg->mtimensec;
+	}
+	if (ivalid & ATTR_CTIME) {
+		iattr->ia_valid |= FATTR_CTIME;
+		iattr->ia_ctime.tv_sec = arg->ctime;
+		iattr->ia_ctime.tv_nsec = arg->ctimensec;
+	}
+}
+
+int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsio,
+		struct dentry *dentry, struct iattr *attr, struct file *file)
+{
+	struct fuse_conn *fc = get_fuse_conn(dentry->d_inode);
+
+	*fsio = (struct fuse_setattr_io) {0};
+	iattr_to_fattr(fc, attr, &fsio->fsi, true);
+
+	*fa = (struct fuse_args) {
+		.opcode = FUSE_SETATTR,
+		.nodeid = get_node_id(dentry->d_inode),
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(fsio->fsi),
+		.in_args[0].value = &fsio->fsi,
+		.out_numargs = 1,
+		.out_args[0].size = sizeof(fsio->fao),
+		.out_args[0].value = &fsio->fao,
+	};
+
+	return 0;
+}
+
+int fuse_setattr_backing(struct fuse_args *fa,
+		struct dentry *dentry, struct iattr *attr, struct file *file)
+{
+	const struct fuse_setattr_in *fsi = fa->in_args[0].value;
+	struct iattr new_attr = {0};
+	struct path *backing_path = &get_fuse_dentry(dentry)->backing_path;
+	int res;
+
+	fattr_to_iattr(fsi, &new_attr);
+	inode_lock(d_inode(backing_path->dentry));
+	res = notify_change(backing_path->dentry, &new_attr, NULL);
+	inode_unlock(d_inode(backing_path->dentry));
+	return res;
+}
+
+void *fuse_setattr_finalize(struct fuse_args *fa,
+		struct dentry *dentry, struct iattr *attr, struct file *file)
+{
+	return NULL;
+}
+
+int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *unused,
+		struct inode *inode, struct dentry *dentry,
+		struct delayed_call *callback, const char **out)
+{
+	/*
+	 * TODO
+	 * If we want to handle changing these things, we'll need to copy
+	 * the lower fs's data into our own buffer, and provide our own callback
+	 * to free that buffer.
+	 *
+	 * Pre could change the name we're looking at
+	 * postfilter can change the name we return
+	 *
+	 * We ought to only make that buffer if it's been requested, so leaving
+	 * this unimplemented for the moment
+	 */
+	*fa = (struct fuse_args) {
+		.opcode = FUSE_READLINK,
+		.nodeid = get_node_id(inode),
+		.in_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = dentry->d_name.len + 1,
+			.value = dentry->d_name.name,
+		},
+		/*
+		 * .out_argvar = 1,
+		 * .out_numargs = 1,
+		 * .out_args[0].size = ,
+		 * .out_args[0].value = ,
+		 */
+	};
+
+	return 0;
+}
+
+int fuse_get_link_backing(struct fuse_args *fa,
+		struct inode *inode, struct dentry *dentry,
+		struct delayed_call *callback, const char **out)
+{
+	struct path backing_path;
+
+	if (!dentry) {
+		*out = ERR_PTR(-ECHILD);
+		return PTR_ERR(*out);
+	}
+
+	get_fuse_backing_path(dentry, &backing_path);
+	if (!backing_path.dentry) {
+		*out = ERR_PTR(-ECHILD);
+		return PTR_ERR(*out);
+	}
+
+	/*
+	 * TODO: If we want to do our own thing, copy the data and then call the
+	 * callback
+	 */
+	*out = vfs_get_link(backing_path.dentry, callback);
+
+	path_put(&backing_path);
+	return 0;
+}
+
+void *fuse_get_link_finalize(struct fuse_args *fa,
+		struct inode *inode, struct dentry *dentry,
+		struct delayed_call *callback,  const char **out)
+{
+	return NULL;
+}
+
+int fuse_symlink_initialize(
+		struct fuse_args *fa, struct fuse_dummy_io *unused,
+		struct inode *dir, struct dentry *entry, const char *link, int len)
+{
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(dir),
+		.opcode = FUSE_SYMLINK,
+		.in_numargs = 2,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = entry->d_name.len + 1,
+			.value = entry->d_name.name,
+		},
+		.in_args[1] = (struct fuse_in_arg) {
+			.size = len,
+			.value = link,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_symlink_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, const char *link, int len)
+{
+	int err = 0;
+	struct inode *backing_inode = get_fuse_inode(dir)->backing_inode;
+	struct path backing_path = {};
+	struct inode *inode = NULL;
+
+	//TODO Actually deal with changing the backing entry in symlink
+	get_fuse_backing_path(entry, &backing_path);
+	if (!backing_path.dentry)
+		return -EBADF;
+
+	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+	err = vfs_symlink(backing_inode, backing_path.dentry, link);
+	inode_unlock(backing_inode);
+	if (err)
+		goto out;
+	if (d_really_is_negative(backing_path.dentry) ||
+		unlikely(d_unhashed(backing_path.dentry))) {
+		err = -EINVAL;
+		/**
+		 * TODO: overlayfs responds to this situation with a
+		 * lookupOneLen. Should we do that too?
+		 */
+		goto out;
+	}
+	inode = fuse_iget_backing(dir->i_sb, backing_inode);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		goto out;
+	}
+	d_instantiate(entry, inode);
+out:
+	path_put(&backing_path);
+	return err;
+}
+
+void *fuse_symlink_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, const char *link, int len)
+{
+	return NULL;
+}
+
+int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
+			    struct file *file, struct dir_context *ctx,
+			    bool *force_again, bool *allow_force)
+{
+	struct fuse_file *ff = file->private_data;
+	u8 *page = (u8 *)__get_free_page(GFP_KERNEL);
+
+	if (!page)
+		return -ENOMEM;
+
+	*fa = (struct fuse_args) {
+		.nodeid = ff->nodeid,
+		.opcode = FUSE_READDIR,
+		.in_numargs = 1,
+		.out_argvar = true,
+		.out_numargs = 2,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = sizeof(frio->fri),
+			.value = &frio->fri,
+		},
+		.out_args[0] = (struct fuse_arg) {
+			.size = sizeof(frio->fro),
+			.value = &frio->fro,
+		},
+		.out_args[1] = (struct fuse_arg) {
+			.size = PAGE_SIZE,
+			.value = page,
+		},
+	};
+
+	frio->fri = (struct fuse_read_in) {
+		.fh = ff->fh,
+		.offset = ctx->pos,
+		.size = PAGE_SIZE,
+	};
+	frio->fro = (struct fuse_read_out) {
+		.again = 0,
+		.offset = 0,
+	};
+	*force_again = false;
+	*allow_force = true;
+	return 0;
+}
+
+struct extfuse_ctx {
+	struct dir_context ctx;
+	u8 *addr;
+	size_t offset;
+};
+
+static int filldir(struct dir_context *ctx, const char *name, int namelen,
+				   loff_t offset, u64 ino, unsigned int d_type)
+{
+	struct extfuse_ctx *ec = container_of(ctx, struct extfuse_ctx, ctx);
+	struct fuse_dirent *fd = (struct fuse_dirent *) (ec->addr + ec->offset);
+
+	if (ec->offset + sizeof(struct fuse_dirent) + namelen > PAGE_SIZE)
+		return -ENOMEM;
+
+	*fd = (struct fuse_dirent) {
+		.ino = ino,
+		.off = offset,
+		.namelen = namelen,
+		.type = d_type,
+	};
+
+	strcpy(fd->name, name);
+	ec->offset += FUSE_DIRENT_SIZE(fd);
+
+	return 0;
+}
+
+int fuse_readdir_backing(struct fuse_args *fa,
+			 struct file *file, struct dir_context *ctx,
+			 bool *force_again, bool *allow_force)
+{
+	struct fuse_file *ff = file->private_data;
+	struct file *backing_dir = ff->backing_file;
+	struct fuse_read_out *fro = fa->out_args[0].value;
+	struct extfuse_ctx ec;
+	int err;
+
+	ec = (struct extfuse_ctx) {
+		.ctx.actor = filldir,
+		.ctx.pos = ctx->pos,
+		.addr = fa->out_args[1].value,
+	};
+
+	if (!ec.addr)
+		return -ENOMEM;
+
+	err = iterate_dir(backing_dir, &ec.ctx);
+	if (ec.offset == 0)
+		*allow_force = false;
+	fa->out_args[1].size = ec.offset;
+
+	fro->offset = ec.ctx.pos;
+	fro->again = false;
+	return err;
+}
+
+void *fuse_readdir_finalize(struct fuse_args *fa,
+			    struct file *file, struct dir_context *ctx,
+			    bool *force_again, bool *allow_force)
+{
+	int err = 0;
+	struct fuse_file *ff = file->private_data;
+	struct file *backing_dir = ff->backing_file;
+	struct fuse_read_out *fro = fa->out_args[0].value;
+
+	err = fuse_parse_dirfile(fa->out_args[1].value,
+				 fa->out_args[1].size, file, ctx);
+	*force_again = !!fro->again;
+	if (*force_again && !*allow_force)
+		err = -EINVAL;
+	backing_dir->f_pos = fro->offset;
+
+	free_page((unsigned long) fa->out_args[1].value);
+	return ERR_PTR(err);
+}
+
+int fuse_access_initialize(struct fuse_args *fa, struct fuse_access_in *fai,
+			    struct inode *inode, int mask)
+{
+	*fai = (struct fuse_access_in) {
+		.mask = mask,
+	};
+
+	*fa = (struct fuse_args) {
+		.opcode = FUSE_ACCESS,
+		.nodeid = get_node_id(inode),
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(*fai),
+		.in_args[0].value = fai,
+	};
+
+	return 0;
+}
+
+int fuse_access_backing(struct fuse_args *fa, struct inode *inode, int mask)
+{
+	struct fuse_inode *fi = get_fuse_inode(inode);
+	const struct fuse_access_in *fai = fa->in_args[0].value;
+
+	return inode_permission(/* For mainline: init_user_ns,*/
+				fi->backing_inode, fai->mask);
+}
+
+void *fuse_access_finalize(struct fuse_args *fa, struct inode *inode, int mask)
+{
+	return NULL;
+}
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c93b0154dd514..0085728fe64a7 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -239,6 +239,11 @@ void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
 {
 	struct fuse_iqueue *fiq = &fc->iq;
 
+	if (nodeid == 0) {
+		kfree(forget);
+		return;
+	}
+
 	forget->forget_one.nodeid = nodeid;
 	forget->forget_one.nlookup = nlookup;
 
@@ -480,6 +485,7 @@ static void fuse_args_to_req(struct fuse_req *req, struct fuse_args *args)
 {
 	req->in.h.opcode = args->opcode;
 	req->in.h.nodeid = args->nodeid;
+	req->in.h.error_in = args->error_in;
 	req->args = args;
 	if (args->end)
 		__set_bit(FR_ASYNC, &req->flags);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index f2a48918b0c74..62f9ac437200e 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -8,8 +8,10 @@
 
 #include "fuse_i.h"
 
+#include <linux/fdtable.h>
 #include <linux/pagemap.h>
 #include <linux/file.h>
+#include <linux/filter.h>
 #include <linux/fs_context.h>
 #include <linux/sched.h>
 #include <linux/namei.h>
@@ -18,6 +20,8 @@
 #include <linux/iversion.h>
 #include <linux/posix_acl.h>
 
+#include "../internal.h"
+
 static void fuse_advise_use_readdirplus(struct inode *dir)
 {
 	struct fuse_inode *fi = get_fuse_inode(dir);
@@ -25,7 +29,7 @@ static void fuse_advise_use_readdirplus(struct inode *dir)
 	set_bit(FUSE_I_ADVISE_RDPLUS, &fi->state);
 }
 
-#if BITS_PER_LONG >= 64
+#if BITS_PER_LONG >= 64 && !defined(CONFIG_FUSE_BPF)
 static inline void __fuse_dentry_settime(struct dentry *entry, u64 time)
 {
 	entry->d_fsdata = (void *) time;
@@ -37,19 +41,15 @@ static inline u64 fuse_dentry_time(const struct dentry *entry)
 }
 
 #else
-union fuse_dentry {
-	u64 time;
-	struct rcu_head rcu;
-};
 
 static inline void __fuse_dentry_settime(struct dentry *dentry, u64 time)
 {
-	((union fuse_dentry *) dentry->d_fsdata)->time = time;
+	((struct fuse_dentry *) dentry->d_fsdata)->time = time;
 }
 
 static inline u64 fuse_dentry_time(const struct dentry *entry)
 {
-	return ((union fuse_dentry *) entry->d_fsdata)->time;
+	return ((struct fuse_dentry *) entry->d_fsdata)->time;
 }
 #endif
 
@@ -74,6 +74,18 @@ static void fuse_dentry_settime(struct dentry *dentry, u64 time)
 	__fuse_dentry_settime(dentry, time);
 }
 
+void fuse_init_dentry_root(struct dentry *root, struct file *backing_dir)
+{
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_dentry *fuse_dentry = root->d_fsdata;
+
+	if (backing_dir) {
+		fuse_dentry->backing_path = backing_dir->f_path;
+		path_get(&fuse_dentry->backing_path);
+	}
+#endif
+}
+
 /*
  * Set dentry and possibly attribute timeouts from the lookup/mk*
  * replies
@@ -144,7 +156,8 @@ static void fuse_invalidate_entry(struct dentry *entry)
 
 static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args,
 			     u64 nodeid, const struct qstr *name,
-			     struct fuse_entry_out *outarg)
+			     struct fuse_entry_out *outarg,
+			     struct fuse_entry_bpf_out *bpf_outarg)
 {
 	memset(outarg, 0, sizeof(struct fuse_entry_out));
 	args->opcode = FUSE_LOOKUP;
@@ -152,9 +165,12 @@ static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args,
 	args->in_numargs = 1;
 	args->in_args[0].size = name->len + 1;
 	args->in_args[0].value = name->name;
-	args->out_numargs = 1;
+	args->out_argvar = true;
+	args->out_numargs = 2;
 	args->out_args[0].size = sizeof(struct fuse_entry_out);
 	args->out_args[0].value = outarg;
+	args->out_args[1].size = sizeof(struct fuse_entry_bpf_out);
+	args->out_args[1].value = bpf_outarg;
 }
 
 /*
@@ -180,6 +196,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 	else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
 		 (flags & LOOKUP_REVAL)) {
 		struct fuse_entry_out outarg;
+		struct fuse_entry_bpf_out bpf_outarg;
 		FUSE_ARGS(args);
 		struct fuse_forget_link *forget;
 		u64 attr_version;
@@ -191,7 +208,20 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 		ret = -ECHILD;
 		if (flags & LOOKUP_RCU)
 			goto out;
-
+#ifdef CONFIG_FUSE_BPF
+		{
+			struct fuse_err_ret fer;
+
+			fer = fuse_bpf_backing(entry->d_parent->d_inode,
+					struct fuse_lookup_io,
+					fuse_lookup_initialize,
+					fuse_revalidate_backing,
+					fuse_revalidate_finalize,
+					d_inode(entry->d_parent), entry, flags);
+			if (fer.ret)
+				return PTR_ERR(fer.result);
+		}
+#endif
 		fm = get_fuse_mount(inode);
 
 		forget = fuse_alloc_forget();
@@ -202,8 +232,9 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 		attr_version = fuse_get_attr_version(fm->fc);
 
 		parent = dget_parent(entry);
+
 		fuse_lookup_init(fm->fc, &args, get_node_id(d_inode(parent)),
-				 &entry->d_name, &outarg);
+				 &entry->d_name, &outarg, &bpf_outarg);
 		ret = fuse_simple_request(fm, &args);
 		dput(parent);
 		/* Zero nodeid is same as -ENOENT */
@@ -253,17 +284,20 @@ invalid:
 	goto out;
 }
 
-#if BITS_PER_LONG < 64
+#if BITS_PER_LONG < 64 || defined(CONFIG_FUSE_BPF)
 static int fuse_dentry_init(struct dentry *dentry)
 {
-	dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry),
+	dentry->d_fsdata = kzalloc(sizeof(struct fuse_dentry),
 				   GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE);
 
 	return dentry->d_fsdata ? 0 : -ENOMEM;
 }
 static void fuse_dentry_release(struct dentry *dentry)
 {
-	union fuse_dentry *fd = dentry->d_fsdata;
+	struct fuse_dentry *fd = dentry->d_fsdata;
+
+	if (fd && fd->backing_path.dentry)
+		path_put(&fd->backing_path);
 
 	kfree_rcu(fd, rcu);
 }
@@ -404,7 +438,7 @@ default_path:
 const struct dentry_operations fuse_dentry_operations = {
 	.d_revalidate	= fuse_dentry_revalidate,
 	.d_delete	= fuse_dentry_delete,
-#if BITS_PER_LONG < 64
+#if BITS_PER_LONG < 64 || defined(CONFIG_FUSE_BPF)
 	.d_init		= fuse_dentry_init,
 	.d_release	= fuse_dentry_release,
 #endif
@@ -413,7 +447,7 @@ const struct dentry_operations fuse_dentry_operations = {
 };
 
 const struct dentry_operations fuse_root_dentry_operations = {
-#if BITS_PER_LONG < 64
+#if BITS_PER_LONG < 64 || defined(CONFIG_FUSE_BPF)
 	.d_init		= fuse_dentry_init,
 	.d_release	= fuse_dentry_release,
 #endif
@@ -432,7 +466,10 @@ bool fuse_invalid_attr(struct fuse_attr *attr)
 }
 
 int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
-		     struct fuse_entry_out *outarg, struct inode **inode)
+		     struct fuse_entry_out *outarg,
+		     struct fuse_entry_bpf_out *bpf_outarg,
+		     struct dentry *entry,
+		     struct inode **inode)
 {
 	struct fuse_mount *fm = get_fuse_mount_super(sb);
 	FUSE_ARGS(args);
@@ -453,23 +490,82 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name
 
 	attr_version = fuse_get_attr_version(fm->fc);
 
-	fuse_lookup_init(fm->fc, &args, nodeid, name, outarg);
+	fuse_lookup_init(fm->fc, &args, nodeid, name, outarg, bpf_outarg);
 	err = fuse_simple_request(fm, &args);
-	/* Zero nodeid is same as -ENOENT, but with valid timeout */
-	if (err || !outarg->nodeid)
-		goto out_put_forget;
 
-	err = -EIO;
-	if (!outarg->nodeid)
-		goto out_put_forget;
-	if (fuse_invalid_attr(&outarg->attr))
-		goto out_put_forget;
-
-	*inode = fuse_iget(sb, outarg->nodeid, outarg->generation,
-			   &outarg->attr, entry_attr_timeout(outarg),
-			   attr_version);
+#ifdef CONFIG_FUSE_BPF
+	if (err == sizeof(*bpf_outarg)) {
+		/* TODO Make sure this handles invalid handles */
+		/* TODO Do we need the same code in revalidate */
+		struct file *backing_file;
+		struct inode *backing_inode;
+
+		err = -ENOENT;
+		if (!entry)
+			goto out_queue_forget;
+
+		err = -EINVAL;
+		if (bpf_outarg->backing_action != FUSE_ACTION_REPLACE)
+			goto out_queue_forget;
+
+		backing_file = fuse_fget(fm->fc, bpf_outarg->backing_fd);
+		if (!backing_file)
+			goto out_queue_forget;
+
+		/* TODO userspace doesn't really know when the right time to
+		 * close the passed fd is. This because after replying to the
+		 * driver request, so assume that after a lookup with bpf_args,
+		 * the daemon passes the fd ownership to the kernel, which also
+		 * takes care of closing it at the right time.
+		 */
+		__close_fd(fm->fc->task->files, bpf_outarg->backing_fd);
+
+		backing_inode = backing_file->f_inode;
+		*inode = fuse_iget_backing(sb, backing_inode);
+		if (!*inode)
+			goto bpf_outarg_out;
+
+		if (bpf_outarg->bpf_action == FUSE_ACTION_REPLACE) {
+			struct bpf_prog *bpf_prog = fuse_get_bpf_prog(fm->fc,
+							bpf_outarg->bpf_fd);
+
+			if (IS_ERR(bpf_prog)) {
+				iput(*inode);
+				*inode = NULL;
+				err = PTR_ERR(bpf_prog);
+				goto bpf_outarg_out;
+			}
+			get_fuse_inode(*inode)->bpf = bpf_prog;
+		}
+
+		get_fuse_dentry(entry)->backing_path = backing_file->f_path;
+		path_get(&get_fuse_dentry(entry)->backing_path);
+
+bpf_outarg_out:
+		fput(backing_file);
+	} else
+#endif
+	{
+		/* Zero nodeid is same as -ENOENT, but with valid timeout */
+		if (err || !outarg->nodeid)
+			goto out_put_forget;
+
+		err = -EIO;
+		if (!outarg->nodeid)
+			goto out_put_forget;
+		if (fuse_invalid_attr(&outarg->attr))
+			goto out_put_forget;
+
+		*inode = fuse_iget(sb, outarg->nodeid, outarg->generation,
+				   &outarg->attr, entry_attr_timeout(outarg),
+				   attr_version);
+	}
+
 	err = -ENOMEM;
-	if (!*inode) {
+#ifdef CONFIG_FUSE_BPF
+out_queue_forget:
+#endif
+	if (!*inode && outarg->nodeid) {
 		fuse_queue_forget(fm->fc, forget, outarg->nodeid, 1);
 		goto out;
 	}
@@ -486,17 +582,29 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 {
 	int err;
 	struct fuse_entry_out outarg;
+	struct fuse_entry_bpf_out bpf_outarg = {0};
 	struct inode *inode;
 	struct dentry *newent;
 	bool outarg_valid = true;
 	bool locked;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(dir, struct fuse_lookup_io,
+			       fuse_lookup_initialize, fuse_lookup_backing,
+			       fuse_lookup_finalize,
+			       dir, entry, flags);
+	if (fer.ret)
+		return fer.result;
+#endif
+
 	if (fuse_is_bad(dir))
 		return ERR_PTR(-EIO);
 
 	locked = fuse_lock_inode(dir);
 	err = fuse_lookup_name(dir->i_sb, get_node_id(dir), &entry->d_name,
-			       &outarg, &inode);
+			       &outarg, &bpf_outarg, entry, &inode);
 	fuse_unlock_inode(dir, locked);
 	if (err == -ENOENT) {
 		outarg_valid = false;
@@ -555,6 +663,20 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry,
 	/* Userspace expects S_IFREG in create mode */
 	BUG_ON((mode & S_IFMT) != S_IFREG);
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(dir, struct fuse_create_open_io,
+				       fuse_create_open_initialize,
+				       fuse_create_open_backing,
+				       fuse_create_open_finalize,
+				       dir, entry, file, flags, mode);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	forget = fuse_alloc_forget();
 	err = -ENOMEM;
 	if (!forget)
@@ -747,6 +869,17 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, umode_t mode,
 	struct fuse_mount *fm = get_fuse_mount(dir);
 	FUSE_ARGS(args);
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(dir, struct fuse_mknod_in,
+			fuse_mknod_initialize, fuse_mknod_backing,
+			fuse_mknod_finalize,
+			dir, entry, mode, rdev);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (!fm->fc->dont_mask)
 		mode &= ~current_umask();
 
@@ -775,6 +908,17 @@ static int fuse_mkdir(struct inode *dir, struct dentry *entry, umode_t mode)
 	struct fuse_mount *fm = get_fuse_mount(dir);
 	FUSE_ARGS(args);
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(dir, struct fuse_mkdir_in,
+			fuse_mkdir_initialize, fuse_mkdir_backing,
+			fuse_mkdir_finalize,
+			dir, entry, mode);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (!fm->fc->dont_mask)
 		mode &= ~current_umask();
 
@@ -797,6 +941,17 @@ static int fuse_symlink(struct inode *dir, struct dentry *entry,
 	unsigned len = strlen(link) + 1;
 	FUSE_ARGS(args);
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(dir, struct fuse_dummy_io,
+			fuse_symlink_initialize, fuse_symlink_backing,
+			fuse_symlink_finalize,
+			dir, entry, link, len);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	args.opcode = FUSE_SYMLINK;
 	args.in_numargs = 2;
 	args.in_args[0].size = entry->d_name.len + 1;
@@ -823,6 +978,20 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
 	if (fuse_is_bad(dir))
 		return -EIO;
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(dir, struct fuse_dummy_io,
+					fuse_unlink_initialize,
+					fuse_unlink_backing,
+					fuse_unlink_finalize,
+					dir, entry);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	args.opcode = FUSE_UNLINK;
 	args.nodeid = get_node_id(dir);
 	args.in_numargs = 1;
@@ -862,6 +1031,20 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
 	if (fuse_is_bad(dir))
 		return -EIO;
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(dir, struct fuse_dummy_io,
+					fuse_rmdir_initialize,
+					fuse_rmdir_backing,
+					fuse_rmdir_finalize,
+					dir, entry);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	args.opcode = FUSE_RMDIR;
 	args.nodeid = get_node_id(dir);
 	args.in_numargs = 1;
@@ -947,6 +1130,18 @@ static int fuse_rename2(struct inode *olddir, struct dentry *oldent,
 		return -EINVAL;
 
 	if (flags) {
+#ifdef CONFIG_FUSE_BPF
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(olddir, struct fuse_rename2_in,
+						fuse_rename2_initialize, fuse_rename2_backing,
+						fuse_rename2_finalize,
+						olddir, oldent, newdir, newent, flags);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+#endif
+
+		/* TODO: how should this go with bpfs involved? */
 		if (fc->no_rename2 || fc->minor < 23)
 			return -EINVAL;
 
@@ -958,6 +1153,17 @@ static int fuse_rename2(struct inode *olddir, struct dentry *oldent,
 			err = -EINVAL;
 		}
 	} else {
+#ifdef CONFIG_FUSE_BPF
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(olddir, struct fuse_rename_in,
+						fuse_rename_initialize, fuse_rename_backing,
+						fuse_rename_finalize,
+						olddir, oldent, newdir, newent);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+#endif
+
 		err = fuse_rename_common(olddir, oldent, newdir, newent, 0,
 					 FUSE_RENAME,
 					 sizeof(struct fuse_rename_in));
@@ -975,6 +1181,16 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
 	struct fuse_mount *fm = get_fuse_mount(inode);
 	FUSE_ARGS(args);
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_link_in, fuse_link_initialize,
+			       fuse_link_backing, fuse_link_finalize, entry,
+			       newdir, newent);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	memset(&inarg, 0, sizeof(inarg));
 	inarg.oldnodeid = get_node_id(inode);
 	args.opcode = FUSE_LINK;
@@ -1075,23 +1291,13 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
 	args.out_args[0].size = sizeof(outarg);
 	args.out_args[0].value = &outarg;
 	err = fuse_simple_request(fm, &args);
-	if (!err) {
-		if (fuse_invalid_attr(&outarg.attr) ||
-		    inode_wrong_type(inode, outarg.attr.mode)) {
-			fuse_make_bad(inode);
-			err = -EIO;
-		} else {
-			fuse_change_attributes(inode, &outarg.attr,
-					       attr_timeout(&outarg),
-					       attr_version);
-			if (stat)
-				fuse_fillattr(inode, &outarg.attr, stat);
-		}
-	}
+	if (!err)
+		err = finalize_attr(inode, &outarg, attr_version, stat);
 	return err;
 }
 
 static int fuse_update_get_attr(struct inode *inode, struct file *file,
+				const struct path *path,
 				struct kstat *stat, u32 request_mask,
 				unsigned int flags)
 {
@@ -1099,6 +1305,17 @@ static int fuse_update_get_attr(struct inode *inode, struct file *file,
 	int err = 0;
 	bool sync;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_getattr_io,
+			       fuse_getattr_initialize,	fuse_getattr_backing,
+			       fuse_getattr_finalize,
+			       path->dentry, stat, request_mask, flags);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (flags & AT_STATX_FORCE_SYNC)
 		sync = true;
 	else if (flags & AT_STATX_DONT_SYNC)
@@ -1123,7 +1340,7 @@ static int fuse_update_get_attr(struct inode *inode, struct file *file,
 int fuse_update_attributes(struct inode *inode, struct file *file)
 {
 	/* Do *not* need to get atime for internal purposes */
-	return fuse_update_get_attr(inode, file, NULL,
+	return fuse_update_get_attr(inode, file, &file->f_path, NULL,
 				    STATX_BASIC_STATS & ~STATX_ATIME, 0);
 }
 
@@ -1232,6 +1449,16 @@ static int fuse_access(struct inode *inode, int mask)
 	struct fuse_access_in inarg;
 	int err;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_access_in,
+			       fuse_access_initialize, fuse_access_backing,
+			       fuse_access_finalize, inode, mask);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	BUG_ON(mask & MAY_NOT_BLOCK);
 
 	if (fm->fc->no_access)
@@ -1258,6 +1485,7 @@ static int fuse_perm_getattr(struct inode *inode, int mask)
 		return -ECHILD;
 
 	forget_all_cached_acls(inode);
+	/* TODO: BPF stuff here? But we have no dentry for path for vfs_getattr */
 	return fuse_do_getattr(inode, NULL, NULL);
 }
 
@@ -1381,6 +1609,21 @@ static const char *fuse_get_link(struct dentry *dentry, struct inode *inode,
 	if (fuse_is_bad(inode))
 		goto out_err;
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+		const char *out = NULL;
+
+		fer = fuse_bpf_backing(inode, struct fuse_dummy_io,
+				       fuse_get_link_initialize,
+				       fuse_get_link_backing,
+				       fuse_get_link_finalize,
+				       inode, dentry, callback, &out);
+		if (fer.ret)
+			return fer.result ?: out;
+	}
+#endif
+
 	if (fc->cache_symlinks)
 		return page_get_link(dentry, inode, callback);
 
@@ -1414,8 +1657,18 @@ static int fuse_dir_open(struct inode *inode, struct file *file)
 
 static int fuse_dir_release(struct inode *inode, struct file *file)
 {
-	fuse_release_common(file, true);
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_release_in,
+		       fuse_releasedir_initialize, fuse_release_backing,
+		       fuse_release_finalize,
+		       inode, file);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
 
+	fuse_release_common(file, true);
 	return 0;
 }
 
@@ -1429,6 +1682,19 @@ static int fuse_dir_fsync(struct file *file, loff_t start, loff_t end,
 	if (fuse_is_bad(inode))
 		return -EIO;
 
+#ifdef CONFIG_FUSE_BFP
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(inode, struct fuse_fsync_in,
+				fuse_dir_fsync_initialize, fuse_fsync_backing,
+				fuse_fsync_finalize,
+				file, start, end, datasync);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	if (fc->no_fsyncdir)
 		return 0;
 
@@ -1580,6 +1846,16 @@ int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
 	bool trust_local_cmtime = is_wb && S_ISREG(inode->i_mode);
 	bool fault_blocked = false;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_setattr_io,
+			       fuse_setattr_initialize, fuse_setattr_backing,
+			       fuse_setattr_finalize, dentry, attr, file);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (!fc->default_permissions)
 		attr->ia_valid |= ATTR_FORCE;
 
@@ -1743,11 +2019,22 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
 		 * This should be done on write(), truncate() and chown().
 		 */
 		if (!fc->handle_killpriv) {
+#ifdef CONFIG_FUSE_BPF
+			struct fuse_err_ret fer;
+
 			/*
 			 * ia_mode calculation may have used stale i_mode.
 			 * Refresh and recalculate.
 			 */
-			ret = fuse_do_getattr(inode, NULL, file);
+			fer = fuse_bpf_backing(inode, struct fuse_getattr_io,
+					       fuse_getattr_initialize,	fuse_getattr_backing,
+					       fuse_getattr_finalize,
+					       entry, NULL, 0, 0);
+			if (fer.ret)
+				ret = PTR_ERR(fer.result);
+			else
+#endif
+				ret = fuse_do_getattr(inode, NULL, file);
 			if (ret)
 				return ret;
 
@@ -1803,7 +2090,8 @@ static int fuse_getattr(const struct path *path, struct kstat *stat,
 		return -EACCES;
 	}
 
-	return fuse_update_get_attr(inode, NULL, stat, request_mask, flags);
+	return fuse_update_get_attr(inode, NULL, path, stat, request_mask,
+				    flags);
 }
 
 static const struct inode_operations fuse_dir_inode_operations = {
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 09610d29c21d5..7a9e6a2fec013 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -8,6 +8,7 @@
 
 #include "fuse_i.h"
 
+#include <linux/filter.h>
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
@@ -137,7 +138,11 @@ int fuse_do_open(struct fuse_mount *fm, u64 nodeid, struct file *file,
 	struct fuse_file *ff;
 	int opcode = isdir ? FUSE_OPENDIR : FUSE_OPEN;
 
-	ff = fuse_file_alloc(fm);
+	if (file->private_data) {
+		ff = file->private_data;
+		file->private_data = NULL;
+	} else
+		ff = fuse_file_alloc(fm);
 	if (!ff)
 		return -ENOMEM;
 
@@ -236,6 +241,20 @@ int fuse_open_common(struct inode *inode, struct file *file, bool isdir)
 	if (err)
 		return err;
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(inode, struct fuse_open_io,
+				       fuse_open_initialize,
+				       fuse_open_backing,
+				       fuse_open_finalize,
+				       inode, file, isdir);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	if (is_wb_truncate || dax_truncate) {
 		inode_lock(inode);
 		fuse_set_nowrite(inode);
@@ -334,6 +353,17 @@ static int fuse_release(struct inode *inode, struct file *file)
 {
 	struct fuse_conn *fc = get_fuse_conn(inode);
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_release_in,
+		       fuse_release_initialize, fuse_release_backing,
+		       fuse_release_finalize,
+		       inode, file);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	/* see fuse_vma_close() for !writeback_cache case */
 	if (fc->writeback_cache)
 		write_inode_now(inode, 1);
@@ -471,6 +501,17 @@ static int fuse_flush(struct file *file, fl_owner_t id)
 	FUSE_ARGS(args);
 	int err;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(file->f_inode, struct fuse_flush_in,
+			       fuse_flush_initialize, fuse_flush_backing,
+			       fuse_flush_finalize,
+			       file, id);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fuse_is_bad(inode))
 		return -EIO;
 
@@ -543,6 +584,17 @@ static int fuse_fsync(struct file *file, loff_t start, loff_t end,
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	int err;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_fsync_in,
+			       fuse_fsync_initialize, fuse_fsync_backing,
+			       fuse_fsync_finalize,
+			       file, start, end, datasync);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fuse_is_bad(inode))
 		return -EIO;
 
@@ -1586,6 +1638,20 @@ static ssize_t fuse_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	if (FUSE_IS_DAX(inode))
 		return fuse_dax_read_iter(iocb, to);
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(inode, struct fuse_read_in,
+				       fuse_file_read_iter_initialize,
+				       fuse_file_read_iter_backing,
+				       fuse_file_read_iter_finalize,
+				       iocb, to);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	if (ff->passthrough.filp)
 		return fuse_passthrough_read_iter(iocb, to);
 	else if (!(ff->open_flags & FOPEN_DIRECT_IO))
@@ -1606,6 +1672,20 @@ static ssize_t fuse_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	if (FUSE_IS_DAX(inode))
 		return fuse_dax_write_iter(iocb, from);
 
+#ifdef CONFIG_FUSE_BPF
+	{
+		struct fuse_err_ret fer;
+
+		fer = fuse_bpf_backing(inode, struct fuse_file_write_iter_io,
+				       fuse_file_write_iter_initialize,
+				       fuse_file_write_iter_backing,
+				       fuse_file_write_iter_finalize,
+				       iocb, from);
+		if (fer.ret)
+			return PTR_ERR(fer.result);
+	}
+#endif
+
 	if (ff->passthrough.filp)
 		return fuse_passthrough_write_iter(iocb, from);
 	else if (!(ff->open_flags & FOPEN_DIRECT_IO))
@@ -1855,6 +1935,19 @@ int fuse_write_inode(struct inode *inode, struct writeback_control *wbc)
 	struct fuse_file *ff;
 	int err;
 
+	/**
+	 * TODO - fully understand why this is necessary
+	 *
+	 * With fuse-bpf, fsstress fails if rename is enabled without this
+	 *
+	 * We are getting writes here on directory inodes, which do not have an
+	 * initialized file list so crash.
+	 *
+	 * The question is why we are getting those writes
+	 */
+	if (!S_ISREG(inode->i_mode))
+		return 0;
+
 	ff = __fuse_write_file_get(fc, fi);
 	err = fuse_flush_times(inode, ff);
 	if (ff)
@@ -3277,6 +3370,18 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
 
 	bool block_faults = FUSE_IS_DAX(inode) && lock_inode;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_fallocate_in,
+			       fuse_file_fallocate_initialize,
+			       fuse_file_fallocate_backing,
+			       fuse_file_fallocate_finalize,
+			       file, mode, offset, length);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
 		return -EOPNOTSUPP;
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 6b607f9c25ad6..63b97ff4e9b15 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -13,6 +13,8 @@
 # define pr_fmt(fmt) "fuse: " fmt
 #endif
 
+#include <linux/filter.h>
+#include <linux/pagemap.h>
 #include <linux/fuse.h>
 #include <linux/fs.h>
 #include <linux/mount.h>
@@ -63,11 +65,57 @@ struct fuse_forget_link {
 	struct fuse_forget_link *next;
 };
 
+/** FUSE specific dentry data */
+#if BITS_PER_LONG < 64 || defined(CONFIG_FUSE_BPF)
+struct fuse_dentry {
+	union {
+		u64 time;
+		struct rcu_head rcu;
+	};
+	struct path backing_path;
+};
+
+static inline struct fuse_dentry *get_fuse_dentry(const struct dentry *entry)
+{
+	return entry->d_fsdata;
+}
+#endif
+
+#ifdef CONFIG_FUSE_BPF
+static inline void get_fuse_backing_path(const struct dentry *d,
+					  struct path *path)
+{
+	struct fuse_dentry *di = get_fuse_dentry(d);
+
+	if (!di) {
+		*path = (struct path) {};
+		return;
+	}
+
+	*path = di->backing_path;
+	path_get(path);
+}
+#endif
+
 /** FUSE inode */
 struct fuse_inode {
 	/** Inode data */
 	struct inode inode;
 
+#ifdef CONFIG_FUSE_BPF
+	/**
+	 * Backing inode, if this inode is from a backing file system.
+	 * If this is set, nodeid is 0.
+	 */
+	struct inode *backing_inode;
+
+	/**
+	 * bpf_prog, run on all operations to determine whether to pass through
+	 * or handle in place
+	 */
+	struct bpf_prog *bpf;
+#endif
+
 	/** Unique ID, which identifies the inode between userspace
 	 * and kernel */
 	u64 nodeid;
@@ -239,6 +287,14 @@ struct fuse_file {
 	/** Container for data related to the passthrough functionality */
 	struct fuse_passthrough passthrough;
 
+#ifdef CONFIG_FUSE_BPF
+	/**
+	 * TODO: Reconcile with passthrough file
+	 * backing file when in bpf mode
+	 */
+	struct file *backing_file;
+#endif
+
 	/** RB node to be linked on fuse_conn->polled_files */
 	struct rb_node polled_node;
 
@@ -488,6 +544,8 @@ struct fuse_fs_context {
 	unsigned int max_read;
 	unsigned int blksize;
 	const char *subtype;
+	struct bpf_prog *root_bpf;
+	struct file *root_dir;
 
 	/* DAX device, may be NULL */
 	struct dax_device *dax_dev;
@@ -780,6 +838,9 @@ struct fuse_conn {
 
 	/** Protects passthrough_req */
 	spinlock_t passthrough_req_lock;
+
+	/** task_struct for fd lookups in fuse-bpf */
+	struct task_struct *task;
 };
 
 /*
@@ -877,12 +938,16 @@ extern const struct dentry_operations fuse_root_dentry_operations;
 /**
  * Get a filled in inode
  */
+struct inode *fuse_iget_backing(struct super_block *sb,
+				struct inode *backing_inode);
 struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
 			int generation, struct fuse_attr *attr,
 			u64 attr_valid, u64 attr_version);
 
 int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
-		     struct fuse_entry_out *outarg, struct inode **inode);
+		     struct fuse_entry_out *outarg,
+		     struct fuse_entry_bpf_out *bpf_outarg,
+		     struct dentry *entry, struct inode **inode);
 
 /**
  * Send FORGET command
@@ -1019,6 +1084,7 @@ void fuse_invalidate_entry_cache(struct dentry *entry);
 void fuse_invalidate_atime(struct inode *inode);
 
 u64 entry_attr_timeout(struct fuse_entry_out *o);
+void fuse_init_dentry_root(struct dentry *root, struct file *backing_dir);
 void fuse_change_entry_timeout(struct dentry *entry, struct fuse_entry_out *o);
 
 /**
@@ -1233,6 +1299,293 @@ ssize_t fuse_passthrough_read_iter(struct kiocb *iocb, struct iov_iter *to);
 ssize_t fuse_passthrough_write_iter(struct kiocb *iocb, struct iov_iter *from);
 ssize_t fuse_passthrough_mmap(struct file *file, struct vm_area_struct *vma);
 
+/* backing.c */
+
+struct file *fuse_fget(struct fuse_conn *fc, unsigned int fd);
+struct bpf_prog *fuse_get_bpf_prog(struct fuse_conn *fc, unsigned int fd);
+
+/*
+ * Dummy io passed to fuse_bpf_backing when io operation needs no scratch space
+ */
+struct fuse_dummy_io {
+	int unused;
+};
+
+struct fuse_open_io {
+	struct fuse_open_in foi;
+	struct fuse_open_out foo;
+};
+
+int fuse_open_initialize(struct fuse_args *fa, struct fuse_open_io *foi,
+			 struct inode *inode, struct file *file, bool isdir);
+int fuse_open_backing(struct fuse_args *fa,
+		      struct inode *inode, struct file *file, bool isdir);
+void *fuse_open_finalize(struct fuse_args *fa,
+		       struct inode *inode, struct file *file, bool isdir);
+
+struct fuse_create_open_io {
+	struct fuse_create_in fci;
+	struct fuse_entry_out feo;
+	struct fuse_open_out foo;
+};
+
+int fuse_create_open_initialize(
+		struct fuse_args *fa, struct fuse_create_open_io *fcoi,
+		struct inode *dir, struct dentry *entry,
+		struct file *file, unsigned int flags, umode_t mode);
+int fuse_create_open_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry,
+		struct file *file, unsigned int flags, umode_t mode);
+void *fuse_create_open_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry,
+		struct file *file, unsigned int flags, umode_t mode);
+
+int fuse_mknod_initialize(
+		struct fuse_args *fa, struct fuse_mknod_in *fmi,
+		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev);
+int fuse_mknod_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev);
+void *fuse_mknod_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev);
+
+int fuse_mkdir_initialize(
+		struct fuse_args *fa, struct fuse_mkdir_in *fmi,
+		struct inode *dir, struct dentry *entry, umode_t mode);
+int fuse_mkdir_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode);
+void *fuse_mkdir_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, umode_t mode);
+
+int fuse_rmdir_initialize(
+		struct fuse_args *fa, struct fuse_dummy_io *fmi,
+		struct inode *dir, struct dentry *entry);
+int fuse_rmdir_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry);
+void *fuse_rmdir_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry);
+
+int fuse_rename2_initialize(struct fuse_args *fa, struct fuse_rename2_in *fri,
+			    struct inode *olddir, struct dentry *oldent,
+			    struct inode *newdir, struct dentry *newent,
+			    unsigned int flags);
+int fuse_rename2_backing(struct fuse_args *fa,
+			 struct inode *olddir, struct dentry *oldent,
+			 struct inode *newdir, struct dentry *newent,
+			 unsigned int flags);
+void *fuse_rename2_finalize(struct fuse_args *fa,
+			    struct inode *olddir, struct dentry *oldent,
+			    struct inode *newdir, struct dentry *newent,
+			    unsigned int flags);
+
+int fuse_rename_initialize(struct fuse_args *fa, struct fuse_rename_in *fri,
+			   struct inode *olddir, struct dentry *oldent,
+			   struct inode *newdir, struct dentry *newent);
+int fuse_rename_backing(struct fuse_args *fa,
+			struct inode *olddir, struct dentry *oldent,
+			struct inode *newdir, struct dentry *newent);
+void *fuse_rename_finalize(struct fuse_args *fa,
+			   struct inode *olddir, struct dentry *oldent,
+			   struct inode *newdir, struct dentry *newent);
+
+int fuse_unlink_initialize(
+		struct fuse_args *fa, struct fuse_dummy_io *fmi,
+		struct inode *dir, struct dentry *entry);
+int fuse_unlink_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry);
+void *fuse_unlink_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry);
+
+int fuse_link_initialize(struct fuse_args *fa, struct fuse_link_in *fli,
+			  struct dentry *entry, struct inode *dir,
+			  struct dentry *newent);
+int fuse_link_backing(struct fuse_args *fa, struct dentry *entry,
+		      struct inode *dir, struct dentry *newent);
+void *fuse_link_finalize(struct fuse_args *fa, struct dentry *entry,
+			 struct inode *dir, struct dentry *newent);
+
+int fuse_release_initialize(struct fuse_args *fa, struct fuse_release_in *fri,
+			    struct inode *inode, struct file *file);
+int fuse_releasedir_initialize(struct fuse_args *fa,
+			struct fuse_release_in *fri,
+			struct inode *inode, struct file *file);
+int fuse_release_backing(struct fuse_args *fa,
+			 struct inode *inode, struct file *file);
+void *fuse_release_finalize(struct fuse_args *fa,
+			    struct inode *inode, struct file *file);
+
+int fuse_flush_initialize(struct fuse_args *fa, struct fuse_flush_in *ffi,
+			  struct file *file, fl_owner_t id);
+int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id);
+void *fuse_flush_finalize(struct fuse_args *fa,
+			  struct file *file, fl_owner_t id);
+
+int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+		   struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_fsync_backing(struct fuse_args *fa,
+		   struct file *file, loff_t start, loff_t end, int datasync);
+void *fuse_fsync_finalize(struct fuse_args *fa,
+		   struct file *file, loff_t start, loff_t end, int datasync);
+int fuse_dir_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+		   struct file *file, loff_t start, loff_t end, int datasync);
+
+struct fuse_getxattr_io {
+	struct fuse_getxattr_in fgi;
+	struct fuse_getxattr_out fgo;
+};
+
+int fuse_getxattr_initialize(
+		struct fuse_args *fa, struct fuse_getxattr_io *fgio,
+		struct dentry *dentry, const char *name, void *value,
+		size_t size);
+int fuse_getxattr_backing(
+		struct fuse_args *fa,
+		struct dentry *dentry, const char *name, void *value,
+		size_t size);
+void *fuse_getxattr_finalize(
+		struct fuse_args *fa,
+		struct dentry *dentry, const char *name, void *value,
+		size_t size);
+
+int fuse_listxattr_initialize(struct fuse_args *fa,
+			       struct fuse_getxattr_io *fgio,
+			       struct dentry *dentry, char *list, size_t size);
+int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+			   char *list, size_t size);
+void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+			      char *list, size_t size);
+
+int fuse_setxattr_initialize(struct fuse_args *fa,
+			     struct fuse_setxattr_in *fsxi,
+			     struct dentry *dentry, const char *name,
+			     const void *value, size_t size, int flags);
+int fuse_setxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+			  const char *name, const void *value, size_t size,
+			  int flags);
+void *fuse_setxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+			     const char *name, const void *value, size_t size,
+			     int flags);
+
+int fuse_file_read_iter_initialize(
+		struct fuse_args *fa, struct fuse_read_in *fri,
+		struct kiocb *iocb, struct iov_iter *to);
+int fuse_file_read_iter_backing(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *to);
+void *fuse_file_read_iter_finalize(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *to);
+
+struct fuse_file_write_iter_io {
+	struct fuse_write_in fwi;
+	struct fuse_write_out fwo;
+};
+
+int fuse_file_write_iter_initialize(
+		struct fuse_args *fa, struct fuse_file_write_iter_io *fwio,
+		struct kiocb *iocb, struct iov_iter *from);
+int fuse_file_write_iter_backing(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *from);
+void *fuse_file_write_iter_finalize(struct fuse_args *fa,
+		struct kiocb *iocb, struct iov_iter *from);
+
+int fuse_file_fallocate_initialize(struct fuse_args *fa,
+		struct fuse_fallocate_in *ffi,
+		struct file *file, int mode, loff_t offset, loff_t length);
+int fuse_file_fallocate_backing(struct fuse_args *fa,
+		struct file *file, int mode, loff_t offset, loff_t length);
+void *fuse_file_fallocate_finalize(struct fuse_args *fa,
+		struct file *file, int mode, loff_t offset, loff_t length);
+
+struct fuse_lookup_io {
+	struct fuse_entry_out feo;
+	struct fuse_entry_bpf_out febo;
+};
+
+int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *feo,
+	       struct inode *dir, struct dentry *entry, unsigned int flags);
+int fuse_lookup_backing(struct fuse_args *fa, struct inode *dir,
+			  struct dentry *entry, unsigned int flags);
+struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
+			   struct dentry *entry, unsigned int flags);
+int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
+			   struct dentry *entry, unsigned int flags);
+void *fuse_revalidate_finalize(struct fuse_args *fa, struct inode *dir,
+			   struct dentry *entry, unsigned int flags);
+
+struct fuse_getattr_io {
+	struct fuse_getattr_in fgi;
+	struct fuse_attr_out fao;
+};
+int fuse_getattr_initialize(struct fuse_args *fa, struct fuse_getattr_io *fgio,
+			const struct dentry *entry, struct kstat *stat,
+			u32 request_mask, unsigned int flags);
+int fuse_getattr_backing(struct fuse_args *fa,
+			const struct dentry *entry, struct kstat *stat,
+			u32 request_mask, unsigned int flags);
+void *fuse_getattr_finalize(struct fuse_args *fa,
+			const struct dentry *entry, struct kstat *stat,
+			u32 request_mask, unsigned int flags);
+
+struct fuse_setattr_io {
+	struct fuse_setattr_in fsi;
+	struct fuse_attr_out fao;
+};
+
+int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsi,
+		struct dentry *dentry, struct iattr *attr, struct file *file);
+int fuse_setattr_backing(struct fuse_args *fa,
+		struct dentry *dentry, struct iattr *attr, struct file *file);
+void *fuse_setattr_finalize(struct fuse_args *fa,
+		struct dentry *dentry, struct iattr *attr, struct file *file);
+
+int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *dummy,
+		struct inode *inode, struct dentry *dentry,
+		struct delayed_call *callback, const char **out);
+int fuse_get_link_backing(struct fuse_args *fa,
+		struct inode *inode, struct dentry *dentry,
+		struct delayed_call *callback, const char **out);
+void *fuse_get_link_finalize(struct fuse_args *fa,
+		struct inode *inode, struct dentry *dentry,
+		struct delayed_call *callback, const char **out);
+
+int fuse_symlink_initialize(
+		struct fuse_args *fa, struct fuse_dummy_io *unused,
+		struct inode *dir, struct dentry *entry, const char *link, int len);
+int fuse_symlink_backing(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, const char *link, int len);
+void *fuse_symlink_finalize(
+		struct fuse_args *fa,
+		struct inode *dir, struct dentry *entry, const char *link, int len);
+
+struct fuse_read_io {
+	struct fuse_read_in fri;
+	struct fuse_read_out fro;
+};
+
+int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
+			    struct file *file, struct dir_context *ctx,
+			    bool *force_again, bool *allow_force);
+int fuse_readdir_backing(struct fuse_args *fa,
+			 struct file *file, struct dir_context *ctx,
+			 bool *force_again, bool *allow_force);
+void *fuse_readdir_finalize(struct fuse_args *fa,
+			    struct file *file, struct dir_context *ctx,
+			    bool *force_again, bool *allow_force);
+
+int fuse_access_initialize(struct fuse_args *fa, struct fuse_access_in *fai,
+			   struct inode *inode, int mask);
+int fuse_access_backing(struct fuse_args *fa, struct inode *inode, int mask);
+void *fuse_access_finalize(struct fuse_args *fa, struct inode *inode, int mask);
+
 /*
  * FUSE caches dentries and attributes with separate timeout.  The
  * time in jiffies until the dentry/attributes are valid is stored in
@@ -1315,4 +1668,168 @@ static inline void iattr_to_fattr(struct fuse_conn *fc, struct iattr *iattr,
 	}
 }
 
+static inline int finalize_attr(struct inode *inode, struct fuse_attr_out *outarg,
+				u64 attr_version, struct kstat *stat)
+{
+	int err = 0;
+
+	if (fuse_invalid_attr(&outarg->attr) ||
+	    ((inode->i_mode ^ outarg->attr.mode) & S_IFMT)) {
+		fuse_make_bad(inode);
+		err = -EIO;
+	} else {
+		fuse_change_attributes(inode, &outarg->attr,
+				       attr_timeout(outarg),
+				       attr_version);
+		if (stat)
+			fuse_fillattr(inode, &outarg->attr, stat);
+	}
+	return err;
+}
+
+#ifdef CONFIG_FUSE_BPF
+struct fuse_err_ret {
+	void *result;
+	bool ret;
+};
+
+/*
+ * expression statement to wrap the backing filter logic
+ * struct inode *inode: inode with bpf and backing inode
+ * typedef io: (typically complex) type whose components fuse_args can point to.
+ *	An instance of this type is created locally and passed to initialize
+ * void initialize(struct fuse_args *fa, io *in_out, args...): function that sets
+ *	up fa and io based on args
+ * int backing(struct fuse_args *fa, args...): function that actually performs
+ *	the backing io operation
+ * void *finalize(struct fuse_args *, args...): function that performs any final
+ *	work needed to commit the backing io
+ */
+#define fuse_bpf_backing(inode, io, initialize, backing, finalize,	\
+			 args...)					\
+({									\
+	struct fuse_err_ret fer = {0};					\
+	int ext_flags;							\
+	struct fuse_inode *fuse_inode = get_fuse_inode(inode);		\
+	struct fuse_mount *fm = get_fuse_mount(inode);			\
+	io feo = {0};							\
+	struct fuse_args fa = {0}, fa_backup = {0};			\
+	bool locked;							\
+	ssize_t res;							\
+	void *err;							\
+	int i;								\
+	bool initialized = false;					\
+									\
+	do {								\
+		if (!fuse_inode || !fuse_inode->backing_inode)		\
+			break;						\
+									\
+		err = ERR_PTR(initialize(&fa, &feo, args));		\
+		if (err) {						\
+			fer = (struct fuse_err_ret) {			\
+				err,					\
+				true,					\
+			};						\
+			break;						\
+		}							\
+		initialized = true;					\
+									\
+		fa_backup = fa;						\
+		fa.opcode |= FUSE_PREFILTER;				\
+		for (i = 0; i < fa.in_numargs; ++i)			\
+			fa.out_args[i] = (struct fuse_arg) {		\
+				.size = fa.in_args[i].size,		\
+				.value = (void *)fa.in_args[i].value,	\
+			};						\
+		fa.out_numargs = fa.in_numargs;				\
+									\
+		ext_flags = fuse_inode->bpf ?				\
+			BPF_PROG_RUN(fuse_inode->bpf, &fa) :		\
+			FUSE_BPF_BACKING;				\
+		if (ext_flags < 0) {					\
+			fer = (struct fuse_err_ret) {			\
+				ERR_PTR(ext_flags),			\
+				true,					\
+			};						\
+			break;						\
+		}							\
+									\
+		if (ext_flags & FUSE_BPF_USER_FILTER) {			\
+			locked = fuse_lock_inode(inode);		\
+			res = fuse_simple_request(fm, &fa);		\
+			fuse_unlock_inode(inode, locked);		\
+			if (res < 0) {					\
+				fer = (struct fuse_err_ret) {		\
+					ERR_PTR(res),			\
+					true,				\
+				};					\
+				break;					\
+			}						\
+		}							\
+									\
+		if (!(ext_flags & FUSE_BPF_BACKING))			\
+			break;						\
+									\
+		fa.opcode &= ~FUSE_PREFILTER;				\
+		for (i = 0; i < fa.in_numargs; ++i)			\
+			fa.in_args[i] = (struct fuse_in_arg) {		\
+				.size = fa.out_args[i].size,		\
+				.value = fa.out_args[i].value,		\
+			};						\
+		for (i = 0; i < fa.out_numargs; ++i)			\
+			fa.out_args[i] = (struct fuse_arg) {		\
+				.size = fa_backup.out_args[i].size,	\
+				.value = fa_backup.out_args[i].value,	\
+			};						\
+		fa.out_numargs = fa_backup.out_numargs;			\
+									\
+		fer = (struct fuse_err_ret) {				\
+			ERR_PTR(backing(&fa, args)),			\
+			true,						\
+		};							\
+		if (!(ext_flags & FUSE_BPF_POST_FILTER))		\
+			break;						\
+									\
+		fa.opcode |= FUSE_POSTFILTER;				\
+		if (IS_ERR(fer.result))					\
+			fa.error_in = PTR_ERR(fer.result);		\
+		for (i = 0; i < fa.out_numargs; ++i)			\
+			fa.in_args[fa.in_numargs++] =			\
+				(struct fuse_in_arg) {			\
+					.size = fa.out_args[i].size,	\
+					.value = fa.out_args[i].value,	\
+				};					\
+		ext_flags = BPF_PROG_RUN(fuse_inode->bpf, &fa);		\
+		if (ext_flags < 0) {					\
+			fer = (struct fuse_err_ret) {			\
+				ERR_PTR(ext_flags),			\
+				true,					\
+			};						\
+			break;						\
+		}							\
+		if (!(ext_flags & FUSE_BPF_USER_FILTER))		\
+			break;						\
+									\
+		fa.out_args[0].size = fa_backup.out_args[0].size;	\
+		fa.out_args[1].size = fa_backup.out_args[1].size;	\
+		fa.out_numargs = fa_backup.out_numargs;			\
+		locked = fuse_lock_inode(inode);			\
+		res = fuse_simple_request(fm, &fa);			\
+		fuse_unlock_inode(inode, locked);			\
+		if (res < 0) {						\
+			fer.result = ERR_PTR(res);			\
+			break;						\
+		}							\
+	} while (false);						\
+									\
+	if (initialized && fer.ret) {					\
+		err = finalize(&fa, args);				\
+		if (err)						\
+			fer.result = err;				\
+	}								\
+									\
+	fer;								\
+})
+#endif /* CONFIG_FUSE_BPF */
+
 #endif /* _FS_FUSE_I_H */
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 1be825e310ede..16c5b83e5f570 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -79,6 +79,10 @@ static struct inode *fuse_alloc_inode(struct super_block *sb)
 
 	fi->i_time = 0;
 	fi->inval_mask = 0;
+#ifdef CONFIG_FUSE_BPF
+	fi->backing_inode = NULL;
+	fi->bpf = NULL;
+#endif
 	fi->nodeid = 0;
 	fi->nlookup = 0;
 	fi->attr_version = 0;
@@ -119,6 +123,12 @@ static void fuse_evict_inode(struct inode *inode)
 {
 	struct fuse_inode *fi = get_fuse_inode(inode);
 
+#ifdef CONFIG_FUSE_BPF
+	iput(fi->backing_inode);
+	if (fi->bpf)
+		bpf_prog_put(fi->bpf);
+	fi->bpf = NULL;
+#endif
 	truncate_inode_pages_final(&inode->i_data);
 	clear_inode(inode);
 	if (inode->i_sb->s_flags & SB_ACTIVE) {
@@ -307,22 +317,74 @@ static void fuse_init_inode(struct inode *inode, struct fuse_attr *attr)
 		BUG();
 }
 
+struct fuse_inode_identifier {
+	u64 nodeid;
+	struct inode *backing_inode;
+};
+
 static int fuse_inode_eq(struct inode *inode, void *_nodeidp)
 {
-	u64 nodeid = *(u64 *) _nodeidp;
-	if (get_node_id(inode) == nodeid)
-		return 1;
-	else
-		return 0;
+	struct fuse_inode_identifier *fii =
+		(struct fuse_inode_identifier *) _nodeidp;
+	struct fuse_inode *fi = get_fuse_inode(inode);
+
+	return fii->nodeid == fi->nodeid
+#ifdef CONFIG_FUSE_BPF
+		&& fii->backing_inode == fi->backing_inode
+#endif
+		;
 }
 
 static int fuse_inode_set(struct inode *inode, void *_nodeidp)
 {
-	u64 nodeid = *(u64 *) _nodeidp;
-	get_fuse_inode(inode)->nodeid = nodeid;
+	struct fuse_inode_identifier *fii =
+		(struct fuse_inode_identifier *) _nodeidp;
+	struct fuse_inode *fi = get_fuse_inode(inode);
+
+	fi->nodeid = fii->nodeid;
+#ifdef CONFIG_FUSE_BPF
+	fi->backing_inode = fii->backing_inode;
+	if (fi->backing_inode)
+		ihold(fi->backing_inode);
+#endif
+
 	return 0;
 }
 
+struct inode *fuse_iget_backing(struct super_block *sb,
+				struct inode *backing_inode)
+{
+	struct inode *inode;
+	struct fuse_inode *fi;
+	struct fuse_conn *fc = get_fuse_conn_super(sb);
+	struct fuse_inode_identifier fii = {
+		.backing_inode = backing_inode,
+	};
+	struct fuse_attr attr;
+
+	fuse_fill_attr_from_inode(&attr, backing_inode);
+	inode = iget5_locked(sb, (unsigned long) backing_inode, fuse_inode_eq,
+			     fuse_inode_set, &fii);
+	if (!inode)
+		return NULL;
+
+	if ((inode->i_state & I_NEW)) {
+		inode->i_flags |= S_NOATIME;
+		if (!fc->writeback_cache)
+			inode->i_flags |= S_NOCMTIME;
+		fuse_init_common(inode);
+		unlock_new_inode(inode);
+	}
+
+	fi = get_fuse_inode(inode);
+	fuse_init_inode(inode, &attr);
+	spin_lock(&fi->lock);
+	fi->nlookup++;
+	spin_unlock(&fi->lock);
+
+	return inode;
+}
+
 struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
 			int generation, struct fuse_attr *attr,
 			u64 attr_valid, u64 attr_version)
@@ -330,6 +392,9 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
 	struct inode *inode;
 	struct fuse_inode *fi;
 	struct fuse_conn *fc = get_fuse_conn_super(sb);
+	struct fuse_inode_identifier fii = {
+		.nodeid = nodeid,
+	};
 
 	/*
 	 * Auto mount points get their node id from the submount root, which is
@@ -351,7 +416,7 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
 	}
 
 retry:
-	inode = iget5_locked(sb, nodeid, fuse_inode_eq, fuse_inode_set, &nodeid);
+	inode = iget5_locked(sb, nodeid, fuse_inode_eq, fuse_inode_set, &fii);
 	if (!inode)
 		return NULL;
 
@@ -383,13 +448,16 @@ struct inode *fuse_ilookup(struct fuse_conn *fc, u64 nodeid,
 {
 	struct fuse_mount *fm_iter;
 	struct inode *inode;
+	struct fuse_inode_identifier fii = {
+		.nodeid = nodeid,
+	};
 
 	WARN_ON(!rwsem_is_locked(&fc->killsb));
 	list_for_each_entry(fm_iter, &fc->mounts, fc_entry) {
 		if (!fm_iter->sb)
 			continue;
 
-		inode = ilookup5(fm_iter->sb, nodeid, fuse_inode_eq, &nodeid);
+		inode = ilookup5(fm_iter->sb, nodeid, fuse_inode_eq, &fii);
 		if (inode) {
 			if (fm)
 				*fm = fm_iter;
@@ -528,6 +596,8 @@ enum {
 	OPT_ALLOW_OTHER,
 	OPT_MAX_READ,
 	OPT_BLKSIZE,
+	OPT_ROOT_BPF,
+	OPT_ROOT_DIR,
 	OPT_ERR
 };
 
@@ -542,6 +612,8 @@ static const struct fs_parameter_spec fuse_fs_parameters[] = {
 	fsparam_u32	("max_read",		OPT_MAX_READ),
 	fsparam_u32	("blksize",		OPT_BLKSIZE),
 	fsparam_string	("subtype",		OPT_SUBTYPE),
+	fsparam_u32	("root_bpf",		OPT_ROOT_BPF),
+	fsparam_u32	("root_dir",		OPT_ROOT_DIR),
 	{}
 };
 
@@ -625,6 +697,21 @@ static int fuse_parse_param(struct fs_context *fc, struct fs_parameter *param)
 		ctx->blksize = result.uint_32;
 		break;
 
+	case OPT_ROOT_BPF:
+		ctx->root_bpf = bpf_prog_get_type_dev(result.uint_32,
+						BPF_PROG_TYPE_FUSE, false);
+		if (IS_ERR(ctx->root_bpf)) {
+			ctx->root_bpf = NULL;
+			return invalfc(fc, "Unable to open bpf program");
+		}
+		break;
+
+	case OPT_ROOT_DIR:
+		ctx->root_dir = fget(result.uint_32);
+		if (!ctx->root_dir)
+			return invalfc(fc, "Unable to open root directory");
+		break;
+
 	default:
 		return -EINVAL;
 	}
@@ -637,6 +724,10 @@ static void fuse_free_fc(struct fs_context *fc)
 	struct fuse_fs_context *ctx = fc->fs_private;
 
 	if (ctx) {
+		if (ctx->root_dir)
+			fput(ctx->root_dir);
+		if (ctx->root_bpf)
+			bpf_prog_put(ctx->root_bpf);
 		kfree(ctx->subtype);
 		kfree(ctx);
 	}
@@ -773,15 +864,34 @@ struct fuse_mount *fuse_mount_get(struct fuse_mount *fm)
 }
 EXPORT_SYMBOL_GPL(fuse_mount_get);
 
-static struct inode *fuse_get_root_inode(struct super_block *sb, unsigned mode)
+static struct inode *fuse_get_root_inode(struct super_block *sb,
+					 unsigned int mode,
+					 struct bpf_prog *root_bpf,
+					 struct file *backing_fd)
 {
 	struct fuse_attr attr;
-	memset(&attr, 0, sizeof(attr));
+	struct inode *inode;
 
+	memset(&attr, 0, sizeof(attr));
 	attr.mode = mode;
 	attr.ino = FUSE_ROOT_ID;
 	attr.nlink = 1;
-	return fuse_iget(sb, 1, 0, &attr, 0, 0);
+	inode = fuse_iget(sb, 1, 0, &attr, 0, 0);
+	if (!inode)
+		return NULL;
+
+#ifdef CONFIG_FUSE_BPF
+	get_fuse_inode(inode)->bpf = root_bpf;
+	if (root_bpf)
+		bpf_prog_inc(root_bpf);
+
+	if (backing_fd) {
+		get_fuse_inode(inode)->backing_inode = backing_fd->f_inode;
+		ihold(backing_fd->f_inode);
+	}
+#endif
+
+	return inode;
 }
 
 struct fuse_inode_handle {
@@ -796,20 +906,24 @@ static struct dentry *fuse_get_dentry(struct super_block *sb,
 	struct inode *inode;
 	struct dentry *entry;
 	int err = -ESTALE;
+	struct fuse_inode_identifier fii = {
+		.nodeid = handle->nodeid,
+	};
 
 	if (handle->nodeid == 0)
 		goto out_err;
 
-	inode = ilookup5(sb, handle->nodeid, fuse_inode_eq, &handle->nodeid);
+	inode = ilookup5(sb, handle->nodeid, fuse_inode_eq, &fii);
 	if (!inode) {
 		struct fuse_entry_out outarg;
+		struct fuse_entry_bpf_out bpf_outarg;
 		const struct qstr name = QSTR_INIT(".", 1);
 
 		if (!fc->export_support)
 			goto out_err;
 
 		err = fuse_lookup_name(sb, handle->nodeid, &name, &outarg,
-				       &inode);
+				       &bpf_outarg, NULL, &inode);
 		if (err && err != -ENOENT)
 			goto out_err;
 		if (err || !inode) {
@@ -903,6 +1017,7 @@ static struct dentry *fuse_get_parent(struct dentry *child)
 	struct inode *inode;
 	struct dentry *parent;
 	struct fuse_entry_out outarg;
+	struct fuse_entry_bpf_out bpf_outarg;
 	const struct qstr name = QSTR_INIT("..", 2);
 	int err;
 
@@ -910,7 +1025,7 @@ static struct dentry *fuse_get_parent(struct dentry *child)
 		return ERR_PTR(-ESTALE);
 
 	err = fuse_lookup_name(child_inode->i_sb, get_node_id(child_inode),
-			       &name, &outarg, &inode);
+			       &name, &outarg, &bpf_outarg, NULL, &inode);
 	if (err) {
 		if (err == -ENOENT)
 			return ERR_PTR(-ESTALE);
@@ -1096,6 +1211,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args,
 		fc->minor = arg->minor;
 		fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
 		fc->max_write = max_t(unsigned, 4096, fc->max_write);
+		fc->task = get_task_struct(current);
 		fc->conn_init = 1;
 	}
 	kfree(ia);
@@ -1172,6 +1288,8 @@ void fuse_free_conn(struct fuse_conn *fc)
 	idr_for_each(&fc->passthrough_req, free_fuse_passthrough, NULL);
 	idr_destroy(&fc->passthrough_req);
 	kfree_rcu(fc, rcu);
+	if (fc->task)
+		put_task_struct(fc->task);
 }
 EXPORT_SYMBOL_GPL(fuse_free_conn);
 
@@ -1397,11 +1515,13 @@ int fuse_fill_super_common(struct super_block *sb, struct fuse_fs_context *ctx)
 	fc->no_force_umount = ctx->no_force_umount;
 
 	err = -ENOMEM;
-	root = fuse_get_root_inode(sb, ctx->rootmode);
+	root = fuse_get_root_inode(sb, ctx->rootmode, ctx->root_bpf,
+				   ctx->root_dir);
 	sb->s_d_op = &fuse_root_dentry_operations;
 	root_dentry = d_make_root(root);
 	if (!root_dentry)
 		goto err_dev_free;
+	fuse_init_dentry_root(root_dentry, ctx->root_dir);
 	/* Root dentry doesn't have .d_revalidate */
 	sb->s_d_op = &fuse_dentry_operations;
 
@@ -1697,6 +1817,26 @@ static void fuse_fs_cleanup(void)
 
 static struct kobject *fuse_kobj;
 
+/* TODO Remove this once BPF_PROG_TYPE_FUSE is upstreamed */
+static ssize_t bpf_prog_type_fuse_show(struct kobject *kobj,
+				       struct kobj_attribute *attr, char *buff)
+{
+	return sysfs_emit(buff, "%d\n", BPF_PROG_TYPE_FUSE);
+}
+
+static struct kobj_attribute bpf_prog_type_fuse_attr =
+		__ATTR_RO(bpf_prog_type_fuse);
+
+static struct attribute *bpf_attributes[] = {
+	&bpf_prog_type_fuse_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group bpf_attr_group = {
+	.attrs = bpf_attributes,
+};
+/* TODO remove to here */
+
 static int fuse_sysfs_init(void)
 {
 	int err;
@@ -1711,8 +1851,15 @@ static int fuse_sysfs_init(void)
 	if (err)
 		goto out_fuse_unregister;
 
+	/* TODO Remove when BPF_PROG_TYPE_FUSE is upstreamed */
+	err = sysfs_create_group(fuse_kobj, &bpf_attr_group);
+	if (err)
+		goto out_fuse_remove_mount_point;
+
 	return 0;
 
+ out_fuse_remove_mount_point:
+	sysfs_remove_mount_point(fuse_kobj, "connections");
  out_fuse_unregister:
 	kobject_put(fuse_kobj);
  out_err:
diff --git a/fs/fuse/readdir.c b/fs/fuse/readdir.c
index ec1faa120377e..4a8a3d5425b3e 100644
--- a/fs/fuse/readdir.c
+++ b/fs/fuse/readdir.c
@@ -571,6 +571,21 @@ int fuse_readdir(struct file *file, struct dir_context *ctx)
 	struct inode *inode = file_inode(file);
 	int err;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+	bool force_again, allow_force;
+again:
+	fer = fuse_bpf_backing(inode, struct fuse_read_io,
+			       fuse_readdir_initialize, fuse_readdir_backing,
+			       fuse_readdir_finalize,
+			       file, ctx, &force_again, &allow_force);
+	if (force_again && !IS_ERR(fer.result))
+		goto again;
+
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fuse_is_bad(inode))
 		return -EIO;
 
diff --git a/fs/fuse/xattr.c b/fs/fuse/xattr.c
index aab4c9cf84836..82dd7a8e4dc05 100644
--- a/fs/fuse/xattr.c
+++ b/fs/fuse/xattr.c
@@ -113,6 +113,17 @@ ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
 	struct fuse_getxattr_out outarg;
 	ssize_t ret;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_getxattr_io,
+			       fuse_listxattr_initialize,
+			       fuse_listxattr_backing, fuse_listxattr_finalize,
+			       entry, list, size);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fuse_is_bad(inode))
 		return -EIO;
 
@@ -181,6 +192,17 @@ static int fuse_xattr_get(const struct xattr_handler *handler,
 			 struct dentry *dentry, struct inode *inode,
 			 const char *name, void *value, size_t size, int flags)
 {
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_getxattr_io,
+			       fuse_getxattr_initialize, fuse_getxattr_backing,
+			       fuse_getxattr_finalize,
+			       dentry, name, value, size);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fuse_is_bad(inode))
 		return -EIO;
 
@@ -192,6 +214,17 @@ static int fuse_xattr_set(const struct xattr_handler *handler,
 			  const char *name, const void *value, size_t size,
 			  int flags)
 {
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_setxattr_in,
+			       fuse_setxattr_initialize, fuse_setxattr_backing,
+			       fuse_setxattr_finalize, dentry, name, value,
+			       size, flags);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fuse_is_bad(inode))
 		return -EIO;
 
diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h
index a8137bb6dd3c2..cd894eaea3496 100644
--- a/include/linux/bpf_types.h
+++ b/include/linux/bpf_types.h
@@ -77,6 +77,9 @@ BPF_PROG_TYPE(BPF_PROG_TYPE_LSM, lsm,
 	       void *, void *)
 #endif /* CONFIG_BPF_LSM */
 #endif
+#ifdef CONFIG_FUSE_BPF
+BPF_PROG_TYPE(BPF_PROG_TYPE_FUSE, fuse, struct fuse_args, struct fuse_args)
+#endif
 
 BPF_MAP_TYPE(BPF_MAP_TYPE_ARRAY, array_map_ops)
 BPF_MAP_TYPE(BPF_MAP_TYPE_PERCPU_ARRAY, percpu_array_map_ops)
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 762bf87c26a3e..26b6bee72039a 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -199,6 +199,7 @@ enum bpf_prog_type {
 	BPF_PROG_TYPE_EXT,
 	BPF_PROG_TYPE_LSM,
 	BPF_PROG_TYPE_SK_LOOKUP,
+	BPF_PROG_TYPE_FUSE,
 };
 
 enum bpf_attach_type {
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index c20b3308e6fe9..7b7376149620c 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -516,6 +516,17 @@ struct fuse_entry_out {
 	struct fuse_attr attr;
 };
 
+#define FUSE_ACTION_KEEP	0
+#define FUSE_ACTION_REMOVE	1
+#define FUSE_ACTION_REPLACE	2
+
+struct fuse_entry_bpf_out {
+	uint64_t	backing_action;
+	uint64_t	backing_fd;
+	uint64_t	bpf_action;
+	uint64_t	bpf_fd;
+};
+
 struct fuse_forget_in {
 	uint64_t	nlookup;
 };
@@ -813,7 +824,7 @@ struct fuse_in_header {
 	uint32_t	uid;
 	uint32_t	gid;
 	uint32_t	pid;
-	uint32_t	padding;
+	uint32_t	error_in;
 };
 
 struct fuse_out_header {
@@ -977,12 +988,20 @@ struct fuse_args {
 	int page_zeroing:1;
 	int page_replace:1;
 	int may_block:1;
-	struct fuse_in_arg in_args[3];
-	struct fuse_arg out_args[2];
+	struct fuse_in_arg in_args[5];
+	struct fuse_arg out_args[3];
 	void (*end)(struct fuse_mount *fm, struct fuse_args *args, int error);
 
 	/* Path used for completing d_canonical_path */
 	struct path *canonical_path;
 };
 
+#define FUSE_BPF_USER_FILTER	1
+#define FUSE_BPF_BACKING	2
+#define FUSE_BPF_POST_FILTER	4
+
+#define FUSE_OPCODE_FILTER	0x0ffff
+#define FUSE_PREFILTER		0x10000
+#define FUSE_POSTFILTER		0x20000
+
 #endif /* _LINUX_FUSE_H */
diff --git a/kernel/bpf/Makefile b/kernel/bpf/Makefile
index c1b9f71ee6aac..bfdc63dc74dbf 100644
--- a/kernel/bpf/Makefile
+++ b/kernel/bpf/Makefile
@@ -36,3 +36,6 @@ obj-$(CONFIG_BPF_SYSCALL) += bpf_struct_ops.o
 obj-${CONFIG_BPF_LSM} += bpf_lsm.o
 endif
 obj-$(CONFIG_BPF_PRELOAD) += preload/
+ifeq ($(CONFIG_FUSE_BPF),y)
+obj-$(CONFIG_BPF_SYSCALL) += bpf_fuse.o
+endif
diff --git a/kernel/bpf/bpf_fuse.c b/kernel/bpf/bpf_fuse.c
new file mode 100644
index 0000000000000..2a4db5ce06b48
--- /dev/null
+++ b/kernel/bpf/bpf_fuse.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2021 Google LLC
+
+#include <linux/filter.h>
+#include <linux/fuse.h>
+
+static const struct bpf_func_proto *
+fuse_prog_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
+{
+	switch (func_id) {
+	case BPF_FUNC_trace_printk:
+			return bpf_get_trace_printk_proto();
+
+	case BPF_FUNC_get_current_uid_gid:
+			return &bpf_get_current_uid_gid_proto;
+
+	case BPF_FUNC_get_current_pid_tgid:
+			return &bpf_get_current_pid_tgid_proto;
+
+	case BPF_FUNC_map_lookup_elem:
+		return &bpf_map_lookup_elem_proto;
+
+	case BPF_FUNC_map_update_elem:
+		return &bpf_map_update_elem_proto;
+
+	default:
+		pr_debug("Invalid fuse bpf func %d\n", func_id);
+		return NULL;
+	}
+}
+
+static bool fuse_prog_is_valid_access(int off, int size,
+				enum bpf_access_type type,
+				const struct bpf_prog *prog,
+				struct bpf_insn_access_aux *info)
+{
+	int i;
+
+	if (off < 0 || off > offsetofend(struct fuse_args, out_args))
+		return false;
+
+	/* TODO This is garbage. Do it properly */
+	for (i = 0; i < 5; i++) {
+		if (off == offsetof(struct fuse_args, in_args[i].value)) {
+			info->reg_type = PTR_TO_RDONLY_BUF;
+			info->ctx_field_size = 256;
+			if (type != BPF_READ)
+				return false;
+			return true;
+		}
+	}
+	for (i = 0; i < 3; i++) {
+		if (off == offsetof(struct fuse_args, out_args[i].value)) {
+			info->reg_type = PTR_TO_RDWR_BUF;
+			info->ctx_field_size = 256;
+			return true;
+		}
+	}
+	if (type != BPF_READ)
+		return false;
+
+	return true;
+}
+
+const struct bpf_verifier_ops fuse_verifier_ops = {
+	.get_func_proto  = fuse_prog_func_proto,
+	.is_valid_access = fuse_prog_is_valid_access,
+};
+
+const struct bpf_prog_ops fuse_prog_ops = {
+};
+
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index aaf2fbaa0cc76..5fa24b2eb32f5 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3,6 +3,7 @@
 
 #include <uapi/linux/btf.h>
 #include <uapi/linux/bpf.h>
+#include <uapi/linux/fuse.h>
 #include <uapi/linux/bpf_perf_event.h>
 #include <uapi/linux/types.h>
 #include <linux/seq_file.h>
-- 
GitLab


From c5afa4d6ab11ca3e6b3b116e6d29ddf633fc50bc Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 2 Dec 2021 15:17:00 -0800
Subject: [PATCH 2237/4878] ANDROID: Add FUSE_BPF to gki_defconfig

Bug: 202785178
Test: test_fuse passes on linux, feature works on cuttlefish
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: If5d56aa5ff5bf5ee660073ac8f1ef1573a74cfd1
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 42e60d1b623dc..460f739437ee5 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -579,6 +579,7 @@ CONFIG_QUOTA=y
 CONFIG_QFMT_V2=y
 CONFIG_FUSE_FS=y
 CONFIG_VIRTIO_FS=y
+CONFIG_FUSE_BPF=y
 CONFIG_OVERLAY_FS=y
 CONFIG_INCREMENTAL_FS=y
 CONFIG_MSDOS_FS=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 7c7a02e310e43..bfb97f17d0975 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -510,6 +510,7 @@ CONFIG_QUOTA=y
 CONFIG_QFMT_V2=y
 CONFIG_FUSE_FS=y
 CONFIG_VIRTIO_FS=y
+CONFIG_FUSE_BPF=y
 CONFIG_OVERLAY_FS=y
 CONFIG_INCREMENTAL_FS=y
 CONFIG_MSDOS_FS=y
-- 
GitLab


From ee8015a3a26c98bdf76f31985d5f716fd19e9849 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 2 Dec 2021 15:16:08 -0800
Subject: [PATCH 2238/4878] ANDROID: Add fuse-bpf self tests

Bug: 202785178
Test: test_fuse passes on linux, feature works on cuttlefish
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I046272c669a038feb005605b783dbdcb9312efe0
---
 tools/include/uapi/linux/bpf.h                |    1 +
 .../selftests/filesystems/fuse/.gitignore     |    2 +
 .../selftests/filesystems/fuse/Makefile       |   34 +
 .../testing/selftests/filesystems/fuse/OWNERS |    2 +
 .../selftests/filesystems/fuse/bpf_loader.c   |  722 +++++++++
 .../testing/selftests/filesystems/fuse/fd.txt |   21 +
 .../selftests/filesystems/fuse/fd_bpf.c       |  298 ++++
 .../selftests/filesystems/fuse/fuse_daemon.c  |  294 ++++
 .../selftests/filesystems/fuse/fuse_test.c    | 1424 +++++++++++++++++
 .../selftests/filesystems/fuse/test_bpf.c     |  479 ++++++
 .../filesystems/fuse/test_framework.h         |  175 ++
 .../selftests/filesystems/fuse/test_fuse.h    |  306 ++++
 12 files changed, 3758 insertions(+)
 create mode 100644 tools/testing/selftests/filesystems/fuse/.gitignore
 create mode 100644 tools/testing/selftests/filesystems/fuse/Makefile
 create mode 100644 tools/testing/selftests/filesystems/fuse/OWNERS
 create mode 100644 tools/testing/selftests/filesystems/fuse/bpf_loader.c
 create mode 100644 tools/testing/selftests/filesystems/fuse/fd.txt
 create mode 100644 tools/testing/selftests/filesystems/fuse/fd_bpf.c
 create mode 100644 tools/testing/selftests/filesystems/fuse/fuse_daemon.c
 create mode 100644 tools/testing/selftests/filesystems/fuse/fuse_test.c
 create mode 100644 tools/testing/selftests/filesystems/fuse/test_bpf.c
 create mode 100644 tools/testing/selftests/filesystems/fuse/test_framework.h
 create mode 100644 tools/testing/selftests/filesystems/fuse/test_fuse.h

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 762bf87c26a3e..26b6bee72039a 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -199,6 +199,7 @@ enum bpf_prog_type {
 	BPF_PROG_TYPE_EXT,
 	BPF_PROG_TYPE_LSM,
 	BPF_PROG_TYPE_SK_LOOKUP,
+	BPF_PROG_TYPE_FUSE,
 };
 
 enum bpf_attach_type {
diff --git a/tools/testing/selftests/filesystems/fuse/.gitignore b/tools/testing/selftests/filesystems/fuse/.gitignore
new file mode 100644
index 0000000000000..3ee9a27fe66a4
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/.gitignore
@@ -0,0 +1,2 @@
+fuse_test
+*.raw
diff --git a/tools/testing/selftests/filesystems/fuse/Makefile b/tools/testing/selftests/filesystems/fuse/Makefile
new file mode 100644
index 0000000000000..9e7420a1e8250
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/Makefile
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -D_FILE_OFFSET_BITS=64 -Wall -Werror -I../.. -I../../../../..
+LDLIBS := -lpthread -lelf
+TEST_GEN_PROGS := fuse_test fuse_daemon
+TEST_GEN_FILES := \
+	test_bpf.bpf \
+	fd_bpf.bpf \
+	fd.sh \
+
+EXTRA_CLEAN := *.bpf
+BPF_FLAGS = -Wall -Werror -O2 -g -emit-llvm \
+	    -I ../../../../../include \
+	    -idirafter /usr/lib/gcc/x86_64-linux-gnu/10/include \
+	    -idirafter /usr/local/include \
+	    -idirafter /usr/include/x86_64-linux-gnu \
+	    -idirafter /usr/include \
+
+include ../../lib.mk
+
+# Put after include ../../lib.mk since that changes $(TEST_GEN_PROGS)
+# Otherwise you get multiple targets, this becomes the default, and it's a mess
+EXTRA_SOURCES := bpf_loader.c
+$(TEST_GEN_PROGS) : $(EXTRA_SOURCES)
+
+$(OUTPUT)/%.ir: %.c
+	clang $(BPF_FLAGS) -c $< -o $@
+
+$(OUTPUT)/%.bpf: $(OUTPUT)/%.ir
+	llc -march=bpf -filetype=obj -o $@ $<
+
+$(OUTPUT)/fd.sh: fd.txt
+	cp $< $@
+	chmod 755 $@
+
diff --git a/tools/testing/selftests/filesystems/fuse/OWNERS b/tools/testing/selftests/filesystems/fuse/OWNERS
new file mode 100644
index 0000000000000..5eb371e1a5a31
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/OWNERS
@@ -0,0 +1,2 @@
+# include OWNERS from the authoritative android-mainline branch
+include kernel/common:android-mainline:/tools/testing/selftests/filesystems/incfs/OWNERS
diff --git a/tools/testing/selftests/filesystems/fuse/bpf_loader.c b/tools/testing/selftests/filesystems/fuse/bpf_loader.c
new file mode 100644
index 0000000000000..db038fc16b398
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/bpf_loader.c
@@ -0,0 +1,722 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2021 Google LLC
+ */
+
+#include "test_fuse.h"
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <gelf.h>
+#include <libelf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/xattr.h>
+
+#include <linux/unistd.h>
+
+#include <include/uapi/linux/fuse.h>
+#include <include/uapi/linux/bpf.h>
+
+struct _test_options test_options;
+
+struct s s(const char *s1)
+{
+	struct s s = {0};
+
+	if (!s1)
+		return s;
+
+	s.s = malloc(strlen(s1) + 1);
+	if (!s.s)
+		return s;
+
+	strcpy(s.s, s1);
+	return s;
+}
+
+struct s sn(const char *s1, const char *s2)
+{
+	struct s s = {0};
+
+	if (!s1)
+		return s;
+
+	s.s = malloc(s2 - s1 + 1);
+	if (!s.s)
+		return s;
+
+	strncpy(s.s, s1, s2 - s1);
+	s.s[s2 - s1] = 0;
+	return s;
+}
+
+int s_cmp(struct s s1, struct s s2)
+{
+	int result = -1;
+
+	if (!s1.s || !s2.s)
+		goto out;
+	result = strcmp(s1.s, s2.s);
+out:
+	free(s1.s);
+	free(s2.s);
+	return result;
+}
+
+struct s s_cat(struct s s1, struct s s2)
+{
+	struct s s = {0};
+
+	if (!s1.s || !s2.s)
+		goto out;
+
+	s.s = malloc(strlen(s1.s) + strlen(s2.s) + 1);
+	if (!s.s)
+		goto out;
+
+	strcpy(s.s, s1.s);
+	strcat(s.s, s2.s);
+out:
+	free(s1.s);
+	free(s2.s);
+	return s;
+}
+
+struct s s_splitleft(struct s s1, char c)
+{
+	struct s s = {0};
+	char *split;
+
+	if (!s1.s)
+		return s;
+
+	split = strchr(s1.s, c);
+	if (split)
+		s = sn(s1.s, split);
+
+	free(s1.s);
+	return s;
+}
+
+struct s s_splitright(struct s s1, char c)
+{
+	struct s s2 = {0};
+	char *split;
+
+	if (!s1.s)
+		return s2;
+
+	split = strchr(s1.s, c);
+	if (split)
+		s2 = s(split + 1);
+
+	free(s1.s);
+	return s2;
+}
+
+struct s s_word(struct s s1, char c, size_t n)
+{
+	while (n--)
+		s1 = s_splitright(s1, c);
+	return s_splitleft(s1, c);
+}
+
+struct s s_path(struct s s1, struct s s2)
+{
+	return s_cat(s_cat(s1, s("/")), s2);
+}
+
+struct s s_pathn(size_t n, struct s s1, ...)
+{
+	va_list argp;
+
+	va_start(argp, s1);
+	while (--n)
+		s1 = s_path(s1, va_arg(argp, struct s));
+	va_end(argp);
+	return s1;
+}
+
+int s_link(struct s src_pathname, struct s dst_pathname)
+{
+	int res;
+
+	if (src_pathname.s && dst_pathname.s) {
+		res = link(src_pathname.s, dst_pathname.s);
+	} else {
+		res = -1;
+		errno = ENOMEM;
+	}
+
+	free(src_pathname.s);
+	free(dst_pathname.s);
+	return res;
+}
+
+int s_symlink(struct s src_pathname, struct s dst_pathname)
+{
+	int res;
+
+	if (src_pathname.s && dst_pathname.s) {
+		res = symlink(src_pathname.s, dst_pathname.s);
+	} else {
+		res = -1;
+		errno = ENOMEM;
+	}
+
+	free(src_pathname.s);
+	free(dst_pathname.s);
+	return res;
+}
+
+
+int s_mkdir(struct s pathname, mode_t mode)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = mkdir(pathname.s, mode);
+	free(pathname.s);
+	return res;
+}
+
+int s_rmdir(struct s pathname)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = rmdir(pathname.s);
+	free(pathname.s);
+	return res;
+}
+
+int s_unlink(struct s pathname)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = unlink(pathname.s);
+	free(pathname.s);
+	return res;
+}
+
+int s_open(struct s pathname, int flags, ...)
+{
+	va_list ap;
+	int res;
+
+	va_start(ap, flags);
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	if (flags & (O_CREAT | O_TMPFILE))
+		res = open(pathname.s, flags, va_arg(ap, mode_t));
+	else
+		res = open(pathname.s, flags);
+
+	free(pathname.s);
+	va_end(ap);
+	return res;
+}
+
+int s_openat(int dirfd, struct s pathname, int flags, ...)
+{
+	va_list ap;
+	int res;
+
+	va_start(ap, flags);
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	if (flags & (O_CREAT | O_TMPFILE))
+		res = openat(dirfd, pathname.s, flags, va_arg(ap, mode_t));
+	else
+		res = openat(dirfd, pathname.s, flags);
+
+	free(pathname.s);
+	va_end(ap);
+	return res;
+}
+
+int s_creat(struct s pathname, mode_t mode)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = open(pathname.s, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, mode);
+	free(pathname.s);
+	return res;
+}
+
+int s_mkfifo(struct s pathname, mode_t mode)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = mknod(pathname.s, S_IFIFO | mode, 0);
+	free(pathname.s);
+	return res;
+}
+
+int s_stat(struct s pathname, struct stat *st)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = stat(pathname.s, st);
+	free(pathname.s);
+	return res;
+}
+
+DIR *s_opendir(struct s pathname)
+{
+	DIR *res;
+
+	res = opendir(pathname.s);
+	free(pathname.s);
+	return res;
+}
+
+int s_getxattr(struct s pathname, const char name[], void *value, size_t size,
+	       ssize_t *ret_size)
+{
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	*ret_size = getxattr(pathname.s, name, value, size);
+	free(pathname.s);
+	return *ret_size >= 0 ? 0 : -1;
+}
+
+int s_listxattr(struct s pathname, void *list, size_t size, ssize_t *ret_size)
+{
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	*ret_size = listxattr(pathname.s, list, size);
+	free(pathname.s);
+	return *ret_size >= 0 ? 0 : -1;
+}
+
+int s_setxattr(struct s pathname, const char name[], const void *value, size_t size, int flags)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = setxattr(pathname.s, name, value, size, flags);
+	free(pathname.s);
+	return res;
+}
+
+int s_rename(struct s oldpathname, struct s newpathname)
+{
+	int res;
+
+	if (!oldpathname.s || !newpathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = rename(oldpathname.s, newpathname.s);
+	free(oldpathname.s);
+	free(newpathname.s);
+	return res;
+}
+
+struct s tracing_folder(void)
+{
+	struct s trace = {0};
+	FILE *mounts = NULL;
+	char *line = NULL;
+	size_t size = 0;
+
+	TEST(mounts = fopen("/proc/mounts", "re"), mounts);
+	while (getline(&line, &size, mounts) != -1) {
+		if (!s_cmp(s_word(sn(line, line + size), ' ', 2),
+			   s("tracefs"))) {
+			trace = s_word(sn(line, line + size), ' ', 1);
+			break;
+		}
+
+		if (!s_cmp(s_word(sn(line, line + size), ' ', 2), s("debugfs")))
+			trace = s_path(s_word(sn(line, line + size), ' ', 1),
+				       s("tracing"));
+	}
+
+out:
+	free(line);
+	fclose(mounts);
+	return trace;
+}
+
+int tracing_on(void)
+{
+	int result = TEST_FAILURE;
+	int tracing_on = -1;
+
+	TEST(tracing_on = s_open(s_path(tracing_folder(), s("tracing_on")),
+				 O_WRONLY | O_CLOEXEC),
+	     tracing_on != -1);
+	TESTEQUAL(write(tracing_on, "1", 1), 1);
+	result = TEST_SUCCESS;
+out:
+	close(tracing_on);
+	return result;
+}
+
+char *concat_file_name(const char *dir, const char *file)
+{
+	char full_name[FILENAME_MAX] = "";
+
+	if (snprintf(full_name, ARRAY_SIZE(full_name), "%s/%s", dir, file) < 0)
+		return NULL;
+	return strdup(full_name);
+}
+
+char *setup_mount_dir(const char *name)
+{
+	struct stat st;
+	char *current_dir = getcwd(NULL, 0);
+	char *mount_dir = concat_file_name(current_dir, name);
+
+	free(current_dir);
+	if (stat(mount_dir, &st) == 0) {
+		if (S_ISDIR(st.st_mode))
+			return mount_dir;
+
+		ksft_print_msg("%s is a file, not a dir.\n", mount_dir);
+		return NULL;
+	}
+
+	if (mkdir(mount_dir, 0777)) {
+		ksft_print_msg("Can't create mount dir.");
+		return NULL;
+	}
+
+	return mount_dir;
+}
+
+int delete_dir_tree(const char *dir_path, bool remove_root)
+{
+	DIR *dir = NULL;
+	struct dirent *dp;
+	int result = 0;
+
+	dir = opendir(dir_path);
+	if (!dir) {
+		result = -errno;
+		goto out;
+	}
+
+	while ((dp = readdir(dir))) {
+		char *full_path;
+
+		if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
+			continue;
+
+		full_path = concat_file_name(dir_path, dp->d_name);
+		if (dp->d_type == DT_DIR)
+			result = delete_dir_tree(full_path, true);
+		else
+			result = unlink(full_path);
+		free(full_path);
+		if (result)
+			goto out;
+	}
+
+out:
+	if (dir)
+		closedir(dir);
+	if (!result && remove_root)
+		rmdir(dir_path);
+	return result;
+}
+
+static int mount_fuse_maybe_init(const char *mount_dir, int bpf_fd, int dir_fd,
+			     int *fuse_dev_ptr, bool init)
+{
+	int result = TEST_FAILURE;
+	int fuse_dev = -1;
+	char options[FILENAME_MAX];
+	uint8_t bytes_in[FUSE_MIN_READ_BUFFER];
+	uint8_t bytes_out[FUSE_MIN_READ_BUFFER];
+
+	DECL_FUSE_IN(init);
+
+	TEST(fuse_dev = open("/dev/fuse", O_RDWR | O_CLOEXEC), fuse_dev != -1);
+	snprintf(options, FILENAME_MAX, "fd=%d,user_id=0,group_id=0,rootmode=0040000",
+		 fuse_dev);
+	if (bpf_fd != -1)
+		snprintf(options + strlen(options),
+			 sizeof(options) - strlen(options),
+			 ",root_bpf=%d", bpf_fd);
+	if (dir_fd != -1)
+		snprintf(options + strlen(options),
+			 sizeof(options) - strlen(options),
+			 ",root_dir=%d", dir_fd);
+	TESTSYSCALL(mount("ABC", mount_dir, "fuse", 0, options));
+
+	if (init) {
+		TESTFUSEIN(FUSE_INIT, init_in);
+		TESTEQUAL(init_in->major, FUSE_KERNEL_VERSION);
+		TESTEQUAL(init_in->minor, FUSE_KERNEL_MINOR_VERSION);
+		TESTFUSEOUT1(fuse_init_out, ((struct fuse_init_out) {
+			.major = FUSE_KERNEL_VERSION,
+			.minor = FUSE_KERNEL_MINOR_VERSION,
+			.max_readahead = 4096,
+			.flags = 0,
+			.max_background = 0,
+			.congestion_threshold = 0,
+			.max_write = 4096,
+			.time_gran = 1000,
+			.max_pages = 12,
+			.map_alignment = 4096,
+		}));
+	}
+
+	*fuse_dev_ptr = fuse_dev;
+	fuse_dev = -1;
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	return result;
+}
+
+int mount_fuse(const char *mount_dir, int bpf_fd, int dir_fd, int *fuse_dev_ptr)
+{
+	return mount_fuse_maybe_init(mount_dir, bpf_fd, dir_fd, fuse_dev_ptr,
+				     true);
+}
+
+int mount_fuse_no_init(const char *mount_dir, int bpf_fd, int dir_fd,
+		       int *fuse_dev_ptr)
+{
+	return mount_fuse_maybe_init(mount_dir, bpf_fd, dir_fd, fuse_dev_ptr,
+				     false);
+}
+
+struct fuse_bpf_map {
+	unsigned int map_type;
+	size_t key_size;
+	size_t value_size;
+	unsigned int max_entries;
+};
+
+static int install_maps(Elf_Data *maps, int maps_index, Elf *elf,
+			Elf_Data *symbols, int symbol_index,
+			struct map_relocation **mr, size_t *map_count)
+{
+	int result = TEST_FAILURE;
+	int i;
+	GElf_Sym symbol;
+
+	TESTNE((void *)symbols, NULL);
+
+	for (i = 0; i < symbols->d_size / sizeof(symbol); ++i) {
+		TESTNE((void *)gelf_getsym(symbols, i, &symbol), 0);
+		if (symbol.st_shndx == maps_index) {
+			struct fuse_bpf_map *map;
+			union bpf_attr attr;
+			int map_fd;
+
+			map = (struct fuse_bpf_map *)
+				((char *)maps->d_buf + symbol.st_value);
+
+			attr = (union bpf_attr) {
+				.map_type = map->map_type,
+				.key_size = map->key_size,
+				.value_size = map->value_size,
+				.max_entries = map->max_entries,
+			};
+
+			TEST(*mr = realloc(*mr, ++*map_count *
+					   sizeof(struct fuse_bpf_map)),
+			     *mr);
+			TEST(map_fd = syscall(__NR_bpf, BPF_MAP_CREATE,
+					      &attr, sizeof(attr)),
+			     map_fd != -1);
+			(*mr)[*map_count - 1] = (struct map_relocation) {
+				.name = strdup(elf_strptr(elf, symbol_index,
+							  symbol.st_name)),
+				.fd = map_fd,
+				.value = symbol.st_value,
+			};
+		}
+	}
+
+	result = TEST_SUCCESS;
+out:
+	return result;
+}
+
+static inline int relocate_maps(GElf_Shdr *rel_header, Elf_Data *rel_data,
+			 Elf_Data *prog_data, Elf_Data *symbol_data,
+			 struct map_relocation *map_relocations,
+			 size_t map_count)
+{
+	int result = TEST_FAILURE;
+	int i;
+	struct bpf_insn *insns = (struct bpf_insn *) prog_data->d_buf;
+
+	for (i = 0; i < rel_header->sh_size / rel_header->sh_entsize; ++i) {
+		GElf_Sym sym;
+		GElf_Rel rel;
+		unsigned int insn_idx;
+		int map_idx;
+
+		gelf_getrel(rel_data, i, &rel);
+		insn_idx = rel.r_offset / sizeof(struct bpf_insn);
+		insns[insn_idx].src_reg = BPF_PSEUDO_MAP_FD;
+
+		gelf_getsym(symbol_data, GELF_R_SYM(rel.r_info), &sym);
+		for (map_idx = 0; map_idx < map_count; map_idx++) {
+			if (map_relocations[map_idx].value == sym.st_value) {
+				insns[insn_idx].imm =
+					map_relocations[map_idx].fd;
+				break;
+			}
+		}
+		TESTNE(map_idx, map_count);
+	}
+
+	result = TEST_SUCCESS;
+out:
+	return result;
+}
+
+int install_elf_bpf(const char *file, const char *section, int *fd,
+		    struct map_relocation **map_relocations, size_t *map_count)
+{
+	int result = TEST_FAILURE;
+	char path[PATH_MAX] = {};
+	char *last_slash;
+	int filter_fd = -1;
+	union bpf_attr bpf_attr;
+	static char log[1 << 20];
+	Elf *elf = NULL;
+	GElf_Ehdr ehdr;
+	Elf_Data *data_prog = NULL, *data_maps = NULL, *data_symbols = NULL;
+	int maps_index, symbol_index, prog_index;
+	int i;
+
+	TESTNE(readlink("/proc/self/exe", path, PATH_MAX), -1);
+	TEST(last_slash = strrchr(path, '/'), last_slash);
+	strcpy(last_slash + 1, file);
+	TEST(filter_fd = open(path, O_RDONLY | O_CLOEXEC), filter_fd != -1);
+	TESTNE(elf_version(EV_CURRENT), EV_NONE);
+	TEST(elf = elf_begin(filter_fd, ELF_C_READ, NULL), elf);
+	TESTEQUAL((void *) gelf_getehdr(elf, &ehdr), &ehdr);
+	for (i = 1; i < ehdr.e_shnum; i++) {
+		char *shname;
+		GElf_Shdr shdr;
+		Elf_Scn *scn;
+
+		TEST(scn = elf_getscn(elf, i), scn);
+		TESTEQUAL((void *)gelf_getshdr(scn, &shdr), &shdr);
+		TEST(shname = elf_strptr(elf, ehdr.e_shstrndx, shdr.sh_name),
+		     shname);
+
+		if (!strcmp(shname, "maps")) {
+			TEST(data_maps = elf_getdata(scn, 0), data_maps);
+			maps_index = i;
+		} else if (shdr.sh_type == SHT_SYMTAB) {
+			TEST(data_symbols = elf_getdata(scn, 0), data_symbols);
+			symbol_index = shdr.sh_link;
+		} else if (!strcmp(shname, section)) {
+			TEST(data_prog = elf_getdata(scn, 0), data_prog);
+			prog_index = i;
+		}
+	}
+	TESTNE((void *) data_prog, NULL);
+
+	if (data_maps)
+		TESTEQUAL(install_maps(data_maps, maps_index, elf,
+				       data_symbols, symbol_index,
+				       map_relocations, map_count), 0);
+
+	/* Now relocate maps */
+	for (i = 1; i < ehdr.e_shnum; i++) {
+		GElf_Shdr rel_header;
+		Elf_Scn *scn;
+		Elf_Data *rel_data;
+
+		TEST(scn = elf_getscn(elf, i), scn);
+		TESTEQUAL((void *)gelf_getshdr(scn, &rel_header),
+			&rel_header);
+		if (rel_header.sh_type != SHT_REL)
+			continue;
+		TEST(rel_data = elf_getdata(scn, 0), rel_data);
+
+		if (rel_header.sh_info != prog_index)
+			continue;
+		TESTEQUAL(relocate_maps(&rel_header, rel_data,
+					data_prog, data_symbols,
+					*map_relocations, *map_count),
+			  0);
+	}
+
+	bpf_attr = (union bpf_attr) {
+		.prog_type = BPF_PROG_TYPE_FUSE,
+		.insn_cnt = data_prog->d_size / 8,
+		.insns = ptr_to_u64(data_prog->d_buf),
+		.license = ptr_to_u64("GPL"),
+		.log_buf = test_options.verbose ? ptr_to_u64(log) : 0,
+		.log_size = test_options.verbose ? sizeof(log) : 0,
+		.log_level = test_options.verbose ? 2 : 0,
+	};
+	*fd = syscall(__NR_bpf, BPF_PROG_LOAD, &bpf_attr, sizeof(bpf_attr));
+	if (test_options.verbose)
+		ksft_print_msg("%s\n", log);
+	if (*fd == -1 && errno == ENOSPC)
+		ksft_print_msg("bpf log size too small!\n");
+	TESTNE(*fd, -1);
+
+	result = TEST_SUCCESS;
+out:
+	close(filter_fd);
+	return result;
+}
+
+
diff --git a/tools/testing/selftests/filesystems/fuse/fd.txt b/tools/testing/selftests/filesystems/fuse/fd.txt
new file mode 100644
index 0000000000000..15ce77180d556
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/fd.txt
@@ -0,0 +1,21 @@
+fuse_daemon $*
+cd fd-dst
+ls
+cd show
+ls
+fsstress -s 123 -d . -p 4 -n 100 -l5
+echo test > wibble
+ls
+cat wibble
+fallocate -l 1000 wobble
+mkdir testdir
+mkdir tmpdir
+rmdir tmpdir
+touch tmp
+mv tmp tmp2
+rm tmp2
+
+# FUSE_LINK
+echo "ln_src contents" > ln_src
+ln ln_src ln_link
+cat ln_link
diff --git a/tools/testing/selftests/filesystems/fuse/fd_bpf.c b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
new file mode 100644
index 0000000000000..b07aa7c887195
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2021 Google LLC
+
+#define __EXPORTED_HEADERS__
+#define __KERNEL__
+
+#ifdef __ANDROID__
+#include <stdint.h>
+#endif
+
+#include <uapi/linux/types.h>
+#include <uapi/linux/bpf.h>
+#include <uapi/linux/fuse.h>
+#include <uapi/linux/errno.h>
+
+struct fuse_bpf_map {
+	int map_type;
+	size_t key_size;
+	size_t value_size;
+	int max_entries;
+};
+
+static void *(*bpf_map_lookup_elem)(struct fuse_bpf_map *map, void *key)
+	= (void *) 1;
+
+static void *(*bpf_map_update_elem)(struct fuse_bpf_map *map, void *key,
+				    void *value, int flags)
+	= (void *) 2;
+
+static long (*bpf_trace_printk)(const char *fmt, __u32 fmt_size, ...)
+	= (void *) 6;
+
+static long (*bpf_get_current_pid_tgid)()
+	= (void *) 14;
+
+static long (*bpf_get_current_uid_gid)()
+	= (void *) 15;
+
+#define bpf_printk(fmt, ...)					\
+	({			                                \
+		char ____fmt[] = fmt;                           \
+		bpf_trace_printk(____fmt, sizeof(____fmt),      \
+		                 ##__VA_ARGS__);                \
+	})
+
+#define SEC(NAME) __attribute__((section(NAME), used))
+
+SEC("dummy")
+
+inline int strcmp(const char *a, const char *b)
+{
+	int i;
+
+	for (i = 0; i < __builtin_strlen(b) + 1; ++i)
+		if (a[i] != b[i])
+			return -1;
+
+	return 0;
+}
+
+SEC("maps") struct fuse_bpf_map test_map = {
+	BPF_MAP_TYPE_ARRAY,
+	sizeof(uint32_t),
+	sizeof(uint32_t),
+	1000,
+};
+
+SEC("maps") struct fuse_bpf_map test_map2 = {
+	BPF_MAP_TYPE_HASH,
+	sizeof(uint32_t),
+	sizeof(uint64_t),
+	76,
+};
+
+SEC("test_daemon")
+
+int trace_daemon(struct fuse_args *fa)
+{
+	uint64_t uid_gid = bpf_get_current_uid_gid();
+	uint32_t uid = uid_gid & 0xffffffff;
+	uint64_t pid_tgid = bpf_get_current_pid_tgid();
+	uint32_t pid = pid_tgid & 0xffffffff;
+	uint32_t key = 23;
+	uint32_t *pvalue;
+
+
+	pvalue = bpf_map_lookup_elem(&test_map, &key);
+	if (pvalue) {
+		uint32_t value = *pvalue;
+
+		bpf_printk("pid %u uid %u value %u", pid, uid, value);
+		value++;
+		bpf_map_update_elem(&test_map, &key,  &value, BPF_ANY);
+	}
+
+	switch (fa->opcode) {
+	case FUSE_ACCESS | FUSE_PREFILTER: {
+		bpf_printk("Access: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_GETATTR | FUSE_PREFILTER: {
+		const struct fuse_getattr_in *fgi = fa->in_args[0].value;
+
+		bpf_printk("Get Attr %d", fgi->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_SETATTR | FUSE_PREFILTER: {
+		const struct fuse_setattr_in *fsi = fa->in_args[0].value;
+
+		bpf_printk("Set Attr %d", fsi->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_OPENDIR | FUSE_PREFILTER: {
+		bpf_printk("Open Dir: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_READDIR | FUSE_PREFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+
+		bpf_printk("Read Dir: fh: %lu", fri->fh, fri->offset);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_LOOKUP | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("Lookup: %lx %s", fa->nodeid, name);
+		if (fa->nodeid == 1)
+			return FUSE_BPF_USER_FILTER | FUSE_BPF_BACKING;
+		else
+			return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_MKNOD | FUSE_PREFILTER: {
+		const struct fuse_mknod_in *fmi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("mknod %s %x %x", name,  fmi->rdev | fmi->mode, fmi->umask);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_MKDIR | FUSE_PREFILTER: {
+		const struct fuse_mkdir_in *fmi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("mkdir: %s %x %x", name, fmi->mode, fmi->umask);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RMDIR | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("rmdir: %s", name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RENAME | FUSE_PREFILTER: {
+		const char *oldname = fa->in_args[1].value;
+		const char *newname = fa->in_args[2].value;
+
+		bpf_printk("rename from %s", oldname);
+		bpf_printk("rename to %s", newname);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RENAME2 | FUSE_PREFILTER: {
+		const struct fuse_rename2_in *fri = fa->in_args[0].value;
+		uint32_t flags = fri->flags;
+		const char *oldname = fa->in_args[1].value;
+		const char *newname = fa->in_args[2].value;
+
+		bpf_printk("rename(%x) from %s", flags, oldname);
+		bpf_printk("rename to %s", newname);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_UNLINK | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("unlink: %s", name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_LINK | FUSE_PREFILTER: {
+		const struct fuse_link_in *fli = fa->in_args[0].value;
+		const char *dst_name = fa->in_args[1].value;
+
+		bpf_printk("Link: %d %s", fli->oldnodeid, dst_name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_SYMLINK | FUSE_PREFILTER: {
+		const char *link_name = fa->in_args[0].value;
+		const char *link_dest = fa->in_args[1].value;
+
+		bpf_printk("symlink from %s", link_name);
+		bpf_printk("symlink to %s", link_dest);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_READLINK | FUSE_PREFILTER: {
+		const char *link_name = fa->in_args[0].value;
+
+		bpf_printk("readlink from %s", link_name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RELEASE | FUSE_PREFILTER: {
+		const struct fuse_release_in *fri = fa->in_args[0].value;
+
+		bpf_printk("Release: %d", fri->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RELEASEDIR | FUSE_PREFILTER: {
+		const struct fuse_release_in *fri = fa->in_args[0].value;
+
+		bpf_printk("Release Dir: %d", fri->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_CREATE | FUSE_PREFILTER: {
+		bpf_printk("Create %s", fa->in_args[1].value);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_OPEN | FUSE_PREFILTER: {
+		bpf_printk("Open: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_READ | FUSE_PREFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+
+		bpf_printk("Read: fh: %lu, offset %lu, size %lu",
+			   fri->fh, fri->offset, fri->size);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_WRITE | FUSE_PREFILTER: {
+		const struct fuse_write_in *fwi = fa->in_args[0].value;
+
+		bpf_printk("Write: fh: %lu, offset %lu, size %lu",
+			   fwi->fh, fwi->offset, fwi->size);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_FLUSH | FUSE_PREFILTER: {
+		const struct fuse_flush_in *ffi = fa->in_args[0].value;
+
+		bpf_printk("Flush %d", ffi->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_FALLOCATE | FUSE_PREFILTER: {
+		const struct fuse_fallocate_in *ffa = fa->in_args[0].value;
+
+		bpf_printk("Fallocate %d %lu", ffa->fh, ffa->length);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_GETXATTR | FUSE_PREFILTER: {
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("Getxattr %d %s", fa->nodeid, name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_LISTXATTR | FUSE_PREFILTER: {
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("Listxattr %d %s", fa->nodeid, name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_SETXATTR | FUSE_PREFILTER: {
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("Setxattr %d %s", fa->nodeid, name);
+		return FUSE_BPF_BACKING;
+	}
+
+	default:
+		if (fa->opcode & FUSE_PREFILTER)
+			bpf_printk("prefilter *** UNKNOWN *** opcode: %d",
+				   fa->opcode & FUSE_OPCODE_FILTER);
+		else if (fa->opcode & FUSE_POSTFILTER)
+			bpf_printk("postfilter *** UNKNOWN *** opcode: %d",
+				   fa->opcode & FUSE_OPCODE_FILTER);
+		else
+			bpf_printk("*** UNKNOWN *** opcode: %d", fa->opcode);
+		return FUSE_BPF_BACKING;
+	}
+}
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_daemon.c b/tools/testing/selftests/filesystems/fuse/fuse_daemon.c
new file mode 100644
index 0000000000000..6213606c28c3d
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/fuse_daemon.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2021 Google LLC
+ */
+
+#include "test_fuse.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <linux/unistd.h>
+
+#include <include/uapi/linux/fuse.h>
+#include <include/uapi/linux/bpf.h>
+
+bool user_messages;
+bool kernel_messages;
+
+static int display_trace(void)
+{
+	int pid = -1;
+	int tp = -1;
+	char c;
+	ssize_t bytes_read;
+	static char line[256] = {0};
+
+	if (!kernel_messages)
+		return TEST_SUCCESS;
+
+	TEST(pid = fork(), pid != -1);
+	if (pid != 0)
+		return pid;
+
+	TESTEQUAL(tracing_on(), 0);
+	TEST(tp = s_open(s_path(tracing_folder(), s("trace_pipe")),
+			 O_RDONLY | O_CLOEXEC), tp != -1);
+	for (;;) {
+		TEST(bytes_read = read(tp, &c, sizeof(c)),
+		     bytes_read == 1);
+		if (c == '\n') {
+			printf("%s\n", line);
+			line[0] = 0;
+		} else
+			sprintf(line + strlen(line), "%c", c);
+	}
+out:
+	if (pid == 0) {
+		close(tp);
+		exit(TEST_FAILURE);
+	}
+	return pid;
+}
+
+static const char *fuse_opcode_to_string(int opcode)
+{
+	switch (opcode & FUSE_OPCODE_FILTER) {
+	case FUSE_LOOKUP:
+		return "FUSE_LOOKUP";
+	case FUSE_FORGET:
+		return "FUSE_FORGET";
+	case FUSE_GETATTR:
+		return "FUSE_GETATTR";
+	case FUSE_SETATTR:
+		return "FUSE_SETATTR";
+	case FUSE_READLINK:
+		return "FUSE_READLINK";
+	case FUSE_SYMLINK:
+		return "FUSE_SYMLINK";
+	case FUSE_MKNOD:
+		return "FUSE_MKNOD";
+	case FUSE_MKDIR:
+		return "FUSE_MKDIR";
+	case FUSE_UNLINK:
+		return "FUSE_UNLINK";
+	case FUSE_RMDIR:
+		return "FUSE_RMDIR";
+	case FUSE_RENAME:
+		return "FUSE_RENAME";
+	case FUSE_LINK:
+		return "FUSE_LINK";
+	case FUSE_OPEN:
+		return "FUSE_OPEN";
+	case FUSE_READ:
+		return "FUSE_READ";
+	case FUSE_WRITE:
+		return "FUSE_WRITE";
+	case FUSE_STATFS:
+		return "FUSE_STATFS";
+	case FUSE_RELEASE:
+		return "FUSE_RELEASE";
+	case FUSE_FSYNC:
+		return "FUSE_FSYNC";
+	case FUSE_SETXATTR:
+		return "FUSE_SETXATTR";
+	case FUSE_GETXATTR:
+		return "FUSE_GETXATTR";
+	case FUSE_LISTXATTR:
+		return "FUSE_LISTXATTR";
+	case FUSE_REMOVEXATTR:
+		return "FUSE_REMOVEXATTR";
+	case FUSE_FLUSH:
+		return "FUSE_FLUSH";
+	case FUSE_INIT:
+		return "FUSE_INIT";
+	case FUSE_OPENDIR:
+		return "FUSE_OPENDIR";
+	case FUSE_READDIR:
+		return "FUSE_READDIR";
+	case FUSE_RELEASEDIR:
+		return "FUSE_RELEASEDIR";
+	case FUSE_FSYNCDIR:
+		return "FUSE_FSYNCDIR";
+	case FUSE_GETLK:
+		return "FUSE_GETLK";
+	case FUSE_SETLK:
+		return "FUSE_SETLK";
+	case FUSE_SETLKW:
+		return "FUSE_SETLKW";
+	case FUSE_ACCESS:
+		return "FUSE_ACCESS";
+	case FUSE_CREATE:
+		return "FUSE_CREATE";
+	case FUSE_INTERRUPT:
+		return "FUSE_INTERRUPT";
+	case FUSE_BMAP:
+		return "FUSE_BMAP";
+	case FUSE_DESTROY:
+		return "FUSE_DESTROY";
+	case FUSE_IOCTL:
+		return "FUSE_IOCTL";
+	case FUSE_POLL:
+		return "FUSE_POLL";
+	case FUSE_NOTIFY_REPLY:
+		return "FUSE_NOTIFY_REPLY";
+	case FUSE_BATCH_FORGET:
+		return "FUSE_BATCH_FORGET";
+	case FUSE_FALLOCATE:
+		return "FUSE_FALLOCATE";
+	case FUSE_READDIRPLUS:
+		return "FUSE_READDIRPLUS";
+	case FUSE_RENAME2:
+		return "FUSE_RENAME2";
+	case FUSE_LSEEK:
+		return "FUSE_LSEEK";
+	case FUSE_COPY_FILE_RANGE:
+		return "FUSE_COPY_FILE_RANGE";
+	case FUSE_SETUPMAPPING:
+		return "FUSE_SETUPMAPPING";
+	case FUSE_REMOVEMAPPING:
+		return "FUSE_REMOVEMAPPING";
+	//case FUSE_SYNCFS:
+	//	return "FUSE_SYNCFS";
+	case CUSE_INIT:
+		return "CUSE_INIT";
+	case CUSE_INIT_BSWAP_RESERVED:
+		return "CUSE_INIT_BSWAP_RESERVED";
+	case FUSE_INIT_BSWAP_RESERVED:
+		return "FUSE_INIT_BSWAP_RESERVED";
+	}
+	return "?";
+}
+
+static int parse_options(int argc, char *const *argv)
+{
+	signed char c;
+
+	while ((c = getopt(argc, argv, "kuv")) != -1)
+		switch (c) {
+		case 'v':
+			test_options.verbose = true;
+			break;
+
+		case 'u':
+			user_messages = true;
+			break;
+
+		case 'k':
+			kernel_messages = true;
+			break;
+
+		default:
+			return -EINVAL;
+		}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int result = TEST_FAILURE;
+	int trace_pid = -1;
+	char *mount_dir = NULL;
+	char *src_dir = NULL;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	struct map_relocation *map_relocations = NULL;
+	size_t map_count = 0;
+	int i;
+
+	if (geteuid() != 0)
+		ksft_print_msg("Not a root, might fail to mount.\n");
+	TESTEQUAL(parse_options(argc, argv), 0);
+
+	TEST(trace_pid = display_trace(), trace_pid != -1);
+
+	delete_dir_tree("fd-src", true);
+	TEST(src_dir = setup_mount_dir("fd-src"), src_dir);
+	delete_dir_tree("fd-dst", true);
+	TEST(mount_dir = setup_mount_dir("fd-dst"), mount_dir);
+
+	TESTEQUAL(install_elf_bpf("fd_bpf.bpf", "test_daemon", &bpf_fd,
+				  &map_relocations, &map_count), 0);
+
+	TEST(src_fd = open("fd-src", O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTSYSCALL(mkdirat(src_fd, "show", 0777));
+	TESTSYSCALL(mkdirat(src_fd, "hide", 0777));
+
+	for (i = 0; i < map_count; ++i)
+		if (!strcmp(map_relocations[i].name, "test_map")) {
+			uint32_t key = 23;
+			uint32_t value = 1234;
+			union bpf_attr attr = {
+				.map_fd = map_relocations[i].fd,
+				.key    = ptr_to_u64(&key),
+				.value  = ptr_to_u64(&value),
+				.flags  = BPF_ANY,
+			};
+			TESTSYSCALL(syscall(__NR_bpf, BPF_MAP_UPDATE_ELEM,
+					    &attr, sizeof(attr)));
+		}
+
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	if (fork())
+		return 0;
+
+	for (;;) {
+		uint8_t bytes_in[FUSE_MIN_READ_BUFFER];
+		uint8_t bytes_out[FUSE_MIN_READ_BUFFER] __attribute__((unused));
+		struct fuse_in_header *in_header =
+			(struct fuse_in_header *)bytes_in;
+		ssize_t res = read(fuse_dev, bytes_in, sizeof(bytes_in));
+
+		if (res == -1)
+			break;
+
+		switch (in_header->opcode) {
+		case FUSE_LOOKUP | FUSE_PREFILTER: {
+			char *name = (char *)(bytes_in + sizeof(*in_header));
+
+			if (user_messages)
+				printf("Lookup %s\n", name);
+			if (!strcmp(name, "hide"))
+				TESTFUSEOUTERROR(-ENOENT);
+			else
+				TESTFUSEOUTREAD(name, strlen(name) + 1);
+			break;
+		}
+		default:
+			if (user_messages) {
+				printf("opcode is %d (%s)\n", in_header->opcode,
+				       fuse_opcode_to_string(
+					       in_header->opcode));
+			}
+			break;
+		}
+	}
+
+	result = TEST_SUCCESS;
+
+out:
+	for (i = 0; i < map_count; ++i) {
+		free(map_relocations[i].name);
+		close(map_relocations[i].fd);
+	}
+	free(map_relocations);
+	umount2(mount_dir, MNT_FORCE);
+	delete_dir_tree(mount_dir, true);
+	free(mount_dir);
+	delete_dir_tree(src_dir, true);
+	free(src_dir);
+	if (trace_pid != -1)
+		kill(trace_pid, SIGKILL);
+	return result;
+}
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
new file mode 100644
index 0000000000000..92718a383075d
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -0,0 +1,1424 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2021 Google LLC
+ */
+#define _GNU_SOURCE
+
+#include "test_fuse.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/mount.h>
+#include <sys/wait.h>
+
+#include <linux/random.h>
+
+#include <include/uapi/linux/fuse.h>
+#include <include/uapi/linux/bpf.h>
+
+static const char *ft_src = "ft-src";
+static const char *ft_dst = "ft-dst";
+
+static void fill_buffer(uint8_t *data, size_t len, int file, int block)
+{
+	int i;
+	int seed = 7919 * file + block;
+
+	for (i = 0; i < len; i++) {
+		seed = 1103515245 * seed + 12345;
+		data[i] = (uint8_t)(seed >> (i % 13));
+	}
+}
+
+static bool test_buffer(uint8_t *data, size_t len, int file, int block)
+{
+	int i;
+	int seed = 7919 * file + block;
+
+	for (i = 0; i < len; i++) {
+		seed = 1103515245 * seed + 12345;
+		if (data[i] != (uint8_t)(seed >> (i % 13)))
+			return false;
+	}
+
+	return true;
+}
+
+static int create_file(int dir, struct s name, int index, size_t blocks)
+{
+	int result = TEST_FAILURE;
+	int fd = -1;
+	int i;
+	uint8_t data[PAGE_SIZE];
+
+	TEST(fd = s_openat(dir, name, O_CREAT | O_WRONLY, 0777), fd != -1);
+	for (i = 0; i < blocks; ++i) {
+		fill_buffer(data, PAGE_SIZE, index, i);
+		TESTEQUAL(write(fd, data, sizeof(data)), PAGE_SIZE);
+	}
+	TESTSYSCALL(close(fd));
+	result = TEST_SUCCESS;
+
+out:
+	close(fd);
+	return result;
+}
+
+static int bpf_clear_trace(void)
+{
+	int result = TEST_FAILURE;
+	int tp = -1;
+
+	TEST(tp = s_open(s_path(tracing_folder(), s("trace")),
+			 O_WRONLY | O_TRUNC | O_CLOEXEC), tp != -1);
+
+	result = TEST_SUCCESS;
+out:
+	close(tp);
+	return result;
+}
+
+static int bpf_test_trace_maybe(const char *substr, bool present)
+{
+	int result = TEST_FAILURE;
+	int tp = -1;
+	char trace_buffer[4096] = {};
+	ssize_t bytes_read;
+
+	TEST(tp = s_open(s_path(tracing_folder(), s("trace_pipe")),
+			 O_RDONLY | O_CLOEXEC),
+	     tp != -1);
+	fcntl(tp, F_SETFL, O_NONBLOCK);
+
+	for (;;) {
+		bytes_read = read(tp, trace_buffer, sizeof(trace_buffer));
+		if (present)
+			TESTCOND(bytes_read > 0);
+		else if (bytes_read <= 0) {
+			result = TEST_SUCCESS;
+			break;
+		}
+
+		if (test_options.verbose)
+			ksft_print_msg("%s\n", trace_buffer);
+
+		if (strstr(trace_buffer, substr)) {
+			if (present)
+				result = TEST_SUCCESS;
+			break;
+		}
+	}
+out:
+	close(tp);
+	return result;
+}
+
+static int bpf_test_trace(const char *substr)
+{
+	return bpf_test_trace_maybe(substr, true);
+}
+
+static int bpf_test_no_trace(const char *substr)
+{
+	return bpf_test_trace_maybe(substr, false);
+}
+
+static int basic_test(const char *mount_dir)
+{
+	const char *test_name = "test";
+	const char *test_data = "data";
+
+	int result = TEST_FAILURE;
+	int fuse_dev = -1;
+	char *filename = NULL;
+	int fd = -1;
+	int pid = -1;
+	int status;
+
+	TESTEQUAL(mount_fuse(mount_dir, -1, -1, &fuse_dev), 0);
+	FUSE_ACTION
+		char data[256];
+
+		filename = concat_file_name(mount_dir, test_name);
+		TESTERR(fd = open(filename, O_RDONLY | O_CLOEXEC), fd != -1);
+		TESTEQUAL(read(fd, data, strlen(test_data)), strlen(test_data));
+		TESTCOND(!strcmp(data, test_data));
+		TESTSYSCALL(close(fd));
+		fd = -1;
+	FUSE_DAEMON
+		DECL_FUSE_IN(open);
+		DECL_FUSE_IN(read);
+		DECL_FUSE_IN(flush);
+		DECL_FUSE_IN(release);
+
+		TESTFUSELOOKUP(test_name, 0);
+		TESTFUSEOUT1(fuse_entry_out, ((struct fuse_entry_out) {
+			.nodeid		= 2,
+			.generation	= 1,
+			.attr.ino = 100,
+			.attr.size = 4,
+			.attr.blksize = 512,
+			.attr.mode = S_IFREG | 0777,
+			}));
+
+		TESTFUSEIN(FUSE_OPEN, open_in);
+		TESTFUSEOUT1(fuse_open_out, ((struct fuse_open_out) {
+			.fh = 1,
+			.open_flags = open_in->flags,
+		}));
+
+		TESTFUSEIN(FUSE_READ, read_in);
+		TESTFUSEOUTREAD(test_data, strlen(test_data));
+
+		TESTFUSEIN(FUSE_FLUSH, flush_in);
+		TESTFUSEOUTEMPTY();
+
+		TESTFUSEIN(FUSE_RELEASE, release_in);
+		TESTFUSEOUTEMPTY();
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	if (!pid)
+		exit(TEST_FAILURE);
+	close(fuse_dev);
+	close(fd);
+	free(filename);
+	umount(mount_dir);
+	return result;
+}
+
+static int bpf_test_real(const char *mount_dir)
+{
+	const char *test_name = "real";
+	const char *test_data =	"Weebles wobble but they don't fall down";
+	int result = TEST_FAILURE;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	char *filename = NULL;
+	int fd = -1;
+	char read_buffer[256] = {};
+	ssize_t bytes_read;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TEST(fd = openat(src_fd, test_name, O_CREAT | O_RDWR | O_CLOEXEC, 0777),
+	     fd != -1);
+	TESTEQUAL(write(fd, test_data, strlen(test_data)), strlen(test_data));
+	TESTSYSCALL(close(fd));
+	fd = -1;
+
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	filename = concat_file_name(mount_dir, test_name);
+	TESTERR(fd = open(filename, O_RDONLY | O_CLOEXEC), fd != -1);
+	bytes_read = read(fd, read_buffer, strlen(test_data));
+	TESTEQUAL(bytes_read, strlen(test_data));
+	TESTEQUAL(strcmp(test_data, read_buffer), 0);
+	TESTEQUAL(bpf_test_trace("read"), 0);
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	close(fd);
+	free(filename);
+	umount(mount_dir);
+	close(src_fd);
+	close(bpf_fd);
+	return result;
+}
+
+
+static int bpf_test_partial(const char *mount_dir)
+{
+	const char *test_name = "partial";
+	int result = TEST_FAILURE;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	char *filename = NULL;
+	int fd = -1;
+	int pid = -1;
+	int status;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(create_file(src_fd, s(test_name), 1, 2), 0);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	FUSE_ACTION
+		uint8_t data[PAGE_SIZE];
+
+		TEST(filename = concat_file_name(mount_dir, test_name),
+		     filename);
+		TESTERR(fd = open(filename, O_RDONLY | O_CLOEXEC), fd != -1);
+		TESTEQUAL(read(fd, data, PAGE_SIZE), PAGE_SIZE);
+		TESTEQUAL(bpf_test_trace("read"), 0);
+		TESTCOND(test_buffer(data, PAGE_SIZE, 2, 0));
+		TESTCOND(!test_buffer(data, PAGE_SIZE, 1, 0));
+		TESTEQUAL(read(fd, data, PAGE_SIZE), PAGE_SIZE);
+		TESTCOND(test_buffer(data, PAGE_SIZE, 1, 1));
+		TESTCOND(!test_buffer(data, PAGE_SIZE, 2, 1));
+		TESTSYSCALL(close(fd));
+		fd = -1;
+	FUSE_DAEMON
+		DECL_FUSE(open);
+		DECL_FUSE(read);
+		DECL_FUSE(release);
+		uint8_t data[PAGE_SIZE];
+
+		TESTFUSEIN2(FUSE_OPEN | FUSE_POSTFILTER, open_in, open_out);
+		TESTFUSEOUT1(fuse_open_out, ((struct fuse_open_out) {
+			.fh = 1,
+			.open_flags = open_in->flags,
+		}));
+
+		TESTFUSEIN(FUSE_READ, read_in);
+		fill_buffer(data, PAGE_SIZE, 2, 0);
+		TESTFUSEOUTREAD(data, PAGE_SIZE);
+
+		TESTFUSEIN(FUSE_RELEASE, release_in);
+		TESTFUSEOUTEMPTY();
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	if (!pid)
+		exit(TEST_FAILURE);
+	close(fuse_dev);
+	close(fd);
+	free(filename);
+	umount(mount_dir);
+	close(src_fd);
+	close(bpf_fd);
+	return result;
+}
+
+static int bpf_test_attrs(const char *mount_dir)
+{
+	const char *test_name = "partial";
+	int result = TEST_FAILURE;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	char *filename = NULL;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(create_file(src_fd, s(test_name), 1, 2), 0);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TEST(filename = concat_file_name(mount_dir, test_name), filename);
+	TESTSYSCALL(stat(filename, &st));
+	TESTSYSCALL(chmod(filename, 0111));
+	TESTSYSCALL(stat(filename, &st));
+	TESTEQUAL(st.st_mode & 0777, 0111);
+	TESTSYSCALL(chmod(filename, 0777));
+	TESTSYSCALL(stat(filename, &st));
+	TESTEQUAL(st.st_mode & 0777, 0777);
+	TESTSYSCALL(chown(filename, 5, 6));
+	TESTSYSCALL(stat(filename, &st));
+	TESTEQUAL(st.st_uid, 5);
+	TESTEQUAL(st.st_gid, 6);
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	free(filename);
+	umount(mount_dir);
+	close(src_fd);
+	close(bpf_fd);
+	return result;
+}
+
+static int bpf_test_readdir(const char *mount_dir)
+{
+	const char *names[] = {"real", "partial", "fake", ".", ".."};
+	int result = TEST_FAILURE;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	int pid = -1;
+	int status;
+	DIR *dir = NULL;
+	struct dirent *dirent;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(create_file(src_fd, s(names[0]), 1, 2), 0);
+	TESTEQUAL(create_file(src_fd, s(names[1]), 1, 2), 0);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	FUSE_ACTION
+		int i, j;
+
+		TEST(dir = s_opendir(s(mount_dir)), dir);
+		TESTEQUAL(bpf_test_trace("opendir"), 0);
+
+		for (i = 0; i < ARRAY_SIZE(names); ++i) {
+			TEST(dirent = readdir(dir), dirent);
+
+			for (j = 0; j < ARRAY_SIZE(names); ++j)
+				if (names[j] &&
+				    strcmp(names[j], dirent->d_name) == 0) {
+					names[j] = NULL;
+					break;
+				}
+			TESTNE(j, ARRAY_SIZE(names));
+		}
+		TEST(dirent = readdir(dir), dirent == NULL);
+		TESTSYSCALL(closedir(dir));
+		dir = NULL;
+		TESTEQUAL(bpf_test_trace("readdir"), 0);
+	FUSE_DAEMON
+		struct fuse_in_header *in_header =
+			(struct fuse_in_header *)bytes_in;
+		ssize_t res = read(fuse_dev, bytes_in, sizeof(bytes_in));
+		struct fuse_read_out *read_out =
+			(struct fuse_read_out *) (bytes_in +
+					sizeof(*in_header) +
+					sizeof(struct fuse_read_in));
+		struct fuse_dirent *fuse_dirent =
+			(struct fuse_dirent *) (bytes_in + res);
+
+		TESTGE(res, sizeof(*in_header) + sizeof(struct fuse_read_in));
+		TESTEQUAL(in_header->opcode, FUSE_READDIR | FUSE_POSTFILTER);
+		*fuse_dirent = (struct fuse_dirent) {
+			.ino = 100,
+			.off = 5,
+			.namelen = strlen("fake"),
+			.type = DT_REG,
+		};
+		strcpy((char *)(bytes_in + res + sizeof(*fuse_dirent)), "fake");
+		res += FUSE_DIRENT_ALIGN(sizeof(*fuse_dirent) + strlen("fake") +
+					 1);
+		TESTFUSEDIROUTREAD(read_out,
+				bytes_in +
+				   sizeof(struct fuse_in_header) +
+				   sizeof(struct fuse_read_in) +
+				   sizeof(struct fuse_read_out),
+				res - sizeof(struct fuse_in_header) -
+				    sizeof(struct fuse_read_in) -
+				    sizeof(struct fuse_read_out));
+		res = read(fuse_dev, bytes_in, sizeof(bytes_in));
+		TESTEQUAL(res, sizeof(*in_header) +
+			  sizeof(struct fuse_read_in) +
+			  sizeof(struct fuse_read_out));
+		TESTEQUAL(in_header->opcode, FUSE_READDIR | FUSE_POSTFILTER);
+		TESTFUSEDIROUTREAD(read_out, bytes_in, 0);
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	closedir(dir);
+	close(fuse_dev);
+	umount(mount_dir);
+	close(src_fd);
+	close(bpf_fd);
+	return result;
+}
+
+static int bpf_test_redact_readdir(const char *mount_dir)
+{
+	char *names[] = {"f1", "f2", "f3", "f4", "f5", "f6", ".", ".."};
+	int num_shown = (ARRAY_SIZE(names) - 2) / 2 + 2;
+	int result = TEST_FAILURE;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	int pid = -1;
+	int status;
+	DIR *dir = NULL;
+	struct dirent *dirent;
+	int i;
+	int count = 0;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	for (i = 0; i < ARRAY_SIZE(names) - 2; i++)
+		TESTEQUAL(create_file(src_fd, s(names[i]), 1, 2), 0);
+
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_readdir_redact",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	FUSE_ACTION
+		int j;
+
+		TEST(dir = s_opendir(s(mount_dir)), dir);
+		while ((dirent = readdir(dir))) {
+			errno = 0;
+			TESTEQUAL(errno, 0);
+
+			for (j = 0; j < ARRAY_SIZE(names); ++j)
+				if (names[j] &&
+				    strcmp(names[j], dirent->d_name) == 0) {
+					names[j] = NULL;
+					count++;
+					break;
+				}
+			TESTNE(j, ARRAY_SIZE(names));
+			TESTGE(num_shown, count);
+		}
+		TESTEQUAL(count, num_shown);
+		TESTSYSCALL(closedir(dir));
+		dir = NULL;
+	FUSE_DAEMON
+	bool skip = true;
+		for (int i = 0; i < ARRAY_SIZE(names) + 1; i++) {
+			uint8_t bytes_in[FUSE_MIN_READ_BUFFER];
+			uint8_t bytes_out[FUSE_MIN_READ_BUFFER];
+			struct fuse_in_header *in_header =
+				(struct fuse_in_header *)bytes_in;
+			ssize_t res = read(fuse_dev, bytes_in, sizeof(bytes_in));
+			int length_out = 0;
+			uint8_t *pos;
+			uint8_t *dirs_in;
+			uint8_t *dirs_out;
+			struct fuse_read_in *fuse_read_in;
+			struct fuse_read_out *fuse_read_out_in;
+			struct fuse_read_out *fuse_read_out_out;
+			struct fuse_dirent *fuse_dirent_in = NULL;
+			struct fuse_dirent *next = NULL;
+			bool again = false;
+			int dir_ent_len = 0;
+
+			TESTGE(res, sizeof(struct fuse_in_header) +
+					sizeof(struct fuse_read_in) +
+					sizeof(struct fuse_read_out));
+
+			pos = bytes_in + sizeof(struct fuse_in_header);
+			fuse_read_in = (struct fuse_read_in *) pos;
+			pos += sizeof(*fuse_read_in);
+			fuse_read_out_in = (struct fuse_read_out *) pos;
+			pos += sizeof(*fuse_read_out_in);
+			dirs_in = pos;
+
+			pos = bytes_out + sizeof(struct fuse_out_header);
+			fuse_read_out_out = (struct fuse_read_out *) pos;
+			pos += sizeof(*fuse_read_out_out);
+			dirs_out = pos;
+
+			if (dirs_in < bytes_in + res) {
+				bool is_dot;
+
+				fuse_dirent_in = (struct fuse_dirent *) dirs_in;
+				is_dot = !strcmp(fuse_dirent_in->name, ".") ||
+					 !strcmp(fuse_dirent_in->name, "..");
+
+				dir_ent_len = FUSE_DIRENT_ALIGN(
+					sizeof(*fuse_dirent_in) +
+					fuse_dirent_in->namelen + 1);
+
+				if (dirs_in + dir_ent_len < bytes_in + res)
+					next = (struct fuse_dirent *)
+							(dirs_in + dir_ent_len);
+
+				if (!skip || is_dot) {
+					memcpy(dirs_out, fuse_dirent_in,
+					       sizeof(struct fuse_dirent) +
+					       fuse_dirent_in->namelen + 1);
+					length_out += dir_ent_len;
+				}
+				again = ((skip && !is_dot) && next);
+
+				if (!is_dot)
+					skip = !skip;
+			}
+
+			fuse_read_out_out->offset = next ? next->off :
+					fuse_read_out_in->offset;
+			fuse_read_out_out->again = again;
+
+			{
+			struct fuse_out_header *out_header =
+				(struct fuse_out_header *)bytes_out;
+
+			*out_header = (struct fuse_out_header) {
+				.len = sizeof(*out_header) +
+				       sizeof(*fuse_read_out_out) + length_out,
+				.unique = in_header->unique,
+			};
+			TESTEQUAL(write(fuse_dev, bytes_out, out_header->len),
+				  out_header->len);
+			}
+		}
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	closedir(dir);
+	close(fuse_dev);
+	umount(mount_dir);
+	close(src_fd);
+	close(bpf_fd);
+	return result;
+}
+
+/*
+ * This test is more to show what classic fuse does with a creat in a subdir
+ * than a test of any new functionality
+ */
+static int bpf_test_creat(const char *mount_dir)
+{
+	const char *dir_name = "show";
+	const char *file_name = "file";
+	int result = TEST_FAILURE;
+	int fuse_dev = -1;
+	int pid = -1;
+	int status;
+	int fd = -1;
+
+	TESTEQUAL(mount_fuse(mount_dir, -1, -1, &fuse_dev), 0);
+
+	FUSE_ACTION
+		TEST(fd = s_creat(s_path(s_path(s(mount_dir), s(dir_name)),
+					 s(file_name)),
+				  0777),
+		     fd != -1);
+		TESTSYSCALL(close(fd));
+	FUSE_DAEMON
+		DECL_FUSE_IN(create);
+		DECL_FUSE_IN(release);
+		DECL_FUSE_IN(flush);
+
+		TESTFUSELOOKUP(dir_name, 0);
+		TESTFUSEOUT1(fuse_entry_out, ((struct fuse_entry_out) {
+			.nodeid		= 3,
+			.generation	= 1,
+			.attr.ino = 100,
+			.attr.size = 4,
+			.attr.blksize = 512,
+			.attr.mode = S_IFDIR | 0777,
+			}));
+
+		TESTFUSELOOKUP(file_name, 0);
+		TESTFUSEOUTERROR(-ENOENT);
+
+		TESTFUSEINEXT(FUSE_CREATE, create_in, strlen(file_name) + 1);
+		TESTFUSEOUT2(fuse_entry_out, ((struct fuse_entry_out) {
+			.nodeid		= 2,
+			.generation	= 1,
+			.attr.ino = 200,
+			.attr.size = 4,
+			.attr.blksize = 512,
+			.attr.mode = S_IFREG,
+			}),
+			fuse_open_out, ((struct fuse_open_out) {
+			.fh = 1,
+			.open_flags = create_in->flags,
+			}));
+
+		TESTFUSEIN(FUSE_FLUSH, flush_in);
+		TESTFUSEOUTEMPTY();
+
+		TESTFUSEIN(FUSE_RELEASE, release_in);
+		TESTFUSEOUTEMPTY();
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	return result;
+}
+
+static int bpf_test_hidden_entries(const char *mount_dir)
+{
+	static const char * const dir_names[] = {
+		"show",
+		"hide",
+	};
+	const char *file_name = "file";
+	const char *data = "The quick brown fox jumps over the lazy dog\n";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTSYSCALL(mkdirat(src_fd, dir_names[0], 0777));
+	TESTSYSCALL(mkdirat(src_fd, dir_names[1], 0777));
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_hidden",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TEST(fd = s_creat(s_path(s_path(s(mount_dir), s(dir_names[0])),
+				 s(file_name)),
+			  0777),
+	     fd != -1);
+	TESTSYSCALL(fallocate(fd, 0, 0, 4096));
+	TEST(write(fd, data, strlen(data)), strlen(data));
+	TESTSYSCALL(close(fd));
+	TESTEQUAL(bpf_test_trace("Create"), 0);
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_dir(const char *mount_dir)
+{
+	const char *dir_name = "dir";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_mkdir(s_path(s(mount_dir), s(dir_name)), 0777));
+	TESTEQUAL(bpf_test_trace("mkdir"), 0);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(dir_name)), &st));
+	TESTSYSCALL(s_rmdir(s_path(s(mount_dir), s(dir_name))));
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(dir_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_file(const char *mount_dir, bool close_first)
+{
+	const char *file_name = "real";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+			  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TEST(fd = s_creat(s_path(s(mount_dir), s(file_name)),
+			  0777),
+	     fd != -1);
+	TESTEQUAL(bpf_test_trace("Create"), 0);
+	if (close_first) {
+		TESTSYSCALL(close(fd));
+		fd = -1;
+	}
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(file_name)), &st));
+	TESTSYSCALL(s_unlink(s_path(s(mount_dir), s(file_name))));
+	TESTEQUAL(bpf_test_trace("unlink"), 0);
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(file_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+	if (!close_first) {
+		TESTSYSCALL(close(fd));
+		fd = -1;
+	}
+	result = TEST_SUCCESS;
+out:
+	close(fd);
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_file_early_close(const char *mount_dir)
+{
+	return bpf_test_file(mount_dir, true);
+}
+
+static int bpf_test_file_late_close(const char *mount_dir)
+{
+	return bpf_test_file(mount_dir, false);
+}
+
+static int bpf_test_alter_errcode_bpf(const char *mount_dir)
+{
+	const char *dir_name = "dir";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_error",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_mkdir(s_path(s(mount_dir), s(dir_name)), 0777));
+	//TESTEQUAL(bpf_test_trace("mkdir"), 0);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(dir_name)), &st));
+	TESTEQUAL(s_mkdir(s_path(s(mount_dir), s(dir_name)), 0777), -EPERM);
+	TESTSYSCALL(s_rmdir(s_path(s(mount_dir), s(dir_name))));
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(dir_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_alter_errcode_userspace(const char *mount_dir)
+{
+	const char *dir_name = "doesnotexist";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	int pid = -1;
+	int status;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_error",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	FUSE_ACTION
+		TESTEQUAL(s_unlink(s_path(s(mount_dir), s(dir_name))),
+		     -1);
+		TESTEQUAL(errno, ENOMEM);
+	FUSE_DAEMON
+		TESTFUSELOOKUP("doesnotexist", FUSE_POSTFILTER);
+		TESTFUSEOUTERROR(-ENOMEM);
+	FUSE_DONE
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_mknod(const char *mount_dir)
+{
+	const char *file_name = "real";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_mkfifo(s_path(s(mount_dir), s(file_name)), 0777));
+	TESTEQUAL(bpf_test_trace("mknod"), 0);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(file_name)), &st));
+	TESTSYSCALL(s_unlink(s_path(s(mount_dir), s(file_name))));
+	TESTEQUAL(bpf_test_trace("unlink"), 0);
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(file_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_largedir(const char *mount_dir)
+{
+	const char *show = "show";
+	const int files = 1000;
+
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct map_relocation *map_relocations = NULL;
+	size_t map_count = 0;
+	int pid = -1;
+	int status;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("fd_bpf.bpf", "test_daemon",
+			  &bpf_fd, &map_relocations, &map_count), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	FUSE_ACTION
+		int i;
+		int fd;
+		DIR *dir = NULL;
+		struct dirent *dirent;
+
+		TESTSYSCALL(s_mkdir(s_path(s(mount_dir), s(show)), 0777));
+		for (i = 0; i < files; ++i) {
+			char filename[NAME_MAX];
+
+			sprintf(filename, "%d", i);
+			TEST(fd = s_creat(s_path(s_path(s(mount_dir), s(show)),
+						 s(filename)), 0777), fd != -1);
+			TESTSYSCALL(close(fd));
+		}
+
+		TEST(dir = s_opendir(s_path(s(mount_dir), s(show))), dir);
+		for (dirent = readdir(dir); dirent; dirent = readdir(dir))
+			;
+		closedir(dir);
+	FUSE_DAEMON
+		int i;
+
+		for (i = 0; i < files + 2; ++i) {
+			TESTFUSELOOKUP(show, FUSE_PREFILTER);
+			TESTFUSEOUTREAD(show, 5);
+		}
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_link(const char *mount_dir)
+{
+	const char *file_name = "real";
+	const char *link_name = "partial";
+	int result = TEST_FAILURE;
+	int fd = -1;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace", &bpf_fd, NULL,
+				  NULL),
+		  0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TEST(fd = s_creat(s_path(s(mount_dir), s(file_name)), 0777), fd != -1);
+	TESTEQUAL(bpf_test_trace("Create"), 0);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(file_name)), &st));
+
+	TESTSYSCALL(s_link(s_path(s(mount_dir), s(file_name)),
+			   s_path(s(mount_dir), s(link_name))));
+
+	TESTEQUAL(bpf_test_trace("link"), 0);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(link_name)), &st));
+
+	TESTSYSCALL(s_unlink(s_path(s(mount_dir), s(link_name))));
+	TESTEQUAL(bpf_test_trace("unlink"), 0);
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(link_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+
+	TESTSYSCALL(s_unlink(s_path(s(mount_dir), s(file_name))));
+	TESTEQUAL(bpf_test_trace("unlink"), 0);
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(file_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+
+	result = TEST_SUCCESS;
+out:
+	close(fd);
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_symlink(const char *mount_dir)
+{
+	const char *test_name = "real";
+	const char *symlink_name = "partial";
+	const char *test_data =	"Weebles wobble but they don't fall down";
+	int result = TEST_FAILURE;
+	int bpf_fd = -1;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+	char read_buffer[256] = {};
+	ssize_t bytes_read;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TEST(fd = openat(src_fd, test_name, O_CREAT | O_RDWR | O_CLOEXEC, 0777),
+	     fd != -1);
+	TESTEQUAL(write(fd, test_data, strlen(test_data)), strlen(test_data));
+	TESTSYSCALL(close(fd));
+	fd = -1;
+
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_symlink(s_path(s(mount_dir), s(test_name)),
+				   s_path(s(mount_dir), s(symlink_name))));
+	TESTEQUAL(bpf_test_trace("symlink"), 0);
+
+	TESTERR(fd = s_open(s_path(s(mount_dir), s(symlink_name)), O_RDONLY | O_CLOEXEC), fd != -1);
+	bytes_read = read(fd, read_buffer, strlen(test_data));
+	TESTEQUAL(bpf_test_trace("readlink"), 0);
+	TESTEQUAL(bytes_read, strlen(test_data));
+	TESTEQUAL(strcmp(test_data, read_buffer), 0);
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	close(fd);
+	umount(mount_dir);
+	close(src_fd);
+	close(bpf_fd);
+	return result;
+}
+
+static int bpf_test_xattr(const char *mount_dir)
+{
+	static const char file_name[] = "real";
+	static const char xattr_name[] = "user.xattr_test_name";
+	static const char xattr_value[] = "this_is_a_test";
+	const size_t xattr_size = sizeof(xattr_value);
+	char xattr_value_ret[256];
+	ssize_t xattr_size_ret;
+	int result = TEST_FAILURE;
+	int fd = -1;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct stat st;
+
+	memset(xattr_value_ret, '\0', sizeof(xattr_value_ret));
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace", &bpf_fd, NULL,
+				  NULL),
+		  0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TEST(fd = s_creat(s_path(s(mount_dir), s(file_name)), 0777), fd != -1);
+	TESTEQUAL(bpf_test_trace("Create"), 0);
+	TESTSYSCALL(close(fd));
+
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(file_name)), &st));
+	TEST(result = s_getxattr(s_path(s(mount_dir), s(file_name)), xattr_name,
+				 xattr_value_ret, sizeof(xattr_value_ret),
+				 &xattr_size_ret),
+	     result == -1);
+	TESTEQUAL(errno, ENODATA);
+	TESTEQUAL(bpf_test_trace("getxattr"), 0);
+
+	TESTSYSCALL(s_listxattr(s_path(s(mount_dir), s(file_name)),
+				xattr_value_ret, sizeof(xattr_value_ret),
+				&xattr_size_ret));
+	TESTEQUAL(bpf_test_trace("listxattr"), 0);
+	TESTEQUAL(xattr_size_ret, 0);
+
+	TESTSYSCALL(s_setxattr(s_path(s(mount_dir), s(file_name)), xattr_name,
+			       xattr_value, xattr_size, 0));
+	TESTEQUAL(bpf_test_trace("setxattr"), 0);
+
+	TESTSYSCALL(s_listxattr(s_path(s(mount_dir), s(file_name)),
+				xattr_value_ret, sizeof(xattr_value_ret),
+				&xattr_size_ret));
+	TESTEQUAL(bpf_test_trace("listxattr"), 0);
+	TESTEQUAL(xattr_size_ret, sizeof(xattr_name));
+	TESTEQUAL(strcmp(xattr_name, xattr_value_ret), 0);
+
+	TESTSYSCALL(s_getxattr(s_path(s(mount_dir), s(file_name)), xattr_name,
+			       xattr_value_ret, sizeof(xattr_value_ret),
+			       &xattr_size_ret));
+	TESTEQUAL(bpf_test_trace("getxattr"), 0);
+	TESTEQUAL(xattr_size, xattr_size_ret);
+	TESTEQUAL(strcmp(xattr_value, xattr_value_ret), 0);
+
+	TESTSYSCALL(s_unlink(s_path(s(mount_dir), s(file_name))));
+	TESTEQUAL(bpf_test_trace("unlink"), 0);
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(file_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_set_backing(const char *mount_dir)
+{
+	const char *backing_name = "backing";
+	const char *test_data = "data";
+	const char *test_name = "test";
+
+	int result = TEST_FAILURE;
+	int fuse_dev = -1;
+	int fd = -1;
+	int pid = -1;
+	int status;
+
+	TESTEQUAL(mount_fuse_no_init(mount_dir, -1, -1, &fuse_dev), 0);
+	FUSE_ACTION
+		char data[256] = {0};
+
+		TESTERR(fd = s_open(s_path(s(mount_dir), s(test_name)),
+				    O_RDONLY | O_CLOEXEC), fd != -1);
+		TESTEQUAL(read(fd, data, strlen(test_data)), strlen(test_data));
+		TESTCOND(!strcmp(data, test_data));
+		TESTSYSCALL(close(fd));
+		fd = -1;
+		TESTSYSCALL(umount(mount_dir));
+	FUSE_DAEMON
+		int bpf_fd  = -1;
+		int backing_fd = -1;
+
+		TESTERR(backing_fd = s_creat(s_path(s(ft_src), s(backing_name)), 0777),
+			backing_fd != -1);
+		TESTEQUAL(write(backing_fd, test_data, strlen(test_data)),
+			  strlen(test_data));
+		TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_simple",
+					  &bpf_fd, NULL, NULL), 0);
+
+		TESTFUSEINIT();
+		TESTFUSELOOKUP(test_name, 0);
+		TESTFUSEOUT2(fuse_entry_out, ((struct fuse_entry_out) {0}),
+			     fuse_entry_bpf_out, ((struct fuse_entry_bpf_out) {
+			.backing_action = FUSE_ACTION_REPLACE,
+			.backing_fd = backing_fd,
+			.bpf_action = FUSE_ACTION_REPLACE,
+			.bpf_fd = bpf_fd,
+			}));
+		read(fuse_dev, bytes_in, sizeof(bytes_in));
+		TESTSYSCALL(close(bpf_fd));
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	if (!pid)
+		exit(TEST_FAILURE);
+	close(fuse_dev);
+	close(fd);
+	umount(mount_dir);
+	return result;
+}
+
+static int bpf_test_remove_backing(const char *mount_dir)
+{
+	const char *folder1 = "folder1";
+	const char *folder2 = "folder2";
+	const char *file = "file1";
+	const char *contents1 = "contents1";
+	const char *contents2 = "contents2";
+
+	int result = TEST_FAILURE;
+	int fuse_dev = -1;
+	int fd = -1;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int pid = -1;
+	int status;
+	char data[256] = {0};
+	int backing_fd = -1;
+
+	/*
+	 * Create folder1/file
+	 *        folder2/file
+	 *
+	 * test will install bpf into mount
+	 * bpf will postfilter root lookup to daemon
+	 * daemon will remove bpf and redirect opens on folder1 to folder2
+	 * test will open folder1/file which will be redirected to folder2
+	 * test will check no traces for file, and contents are folder2/file
+	 */
+	TESTEQUAL(bpf_clear_trace(), 0);
+	TESTSYSCALL(s_mkdir(s_path(s(ft_src), s(folder1)), 0777));
+	TEST(fd = s_creat(s_pathn(3, s(ft_src), s(folder1), s(file)), 0777),
+	     fd != -1);
+	TESTEQUAL(write(fd, contents1, strlen(contents1)), strlen(contents1));
+	TESTSYSCALL(close(fd));
+	TESTSYSCALL(s_mkdir(s_path(s(ft_src), s(folder2)), 0777));
+	TEST(fd = s_creat(s_pathn(3, s(ft_src), s(folder2), s(file)), 0777),
+	     fd != -1);
+	TESTEQUAL(write(fd, contents2, strlen(contents2)), strlen(contents2));
+	TESTSYSCALL(close(fd));
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_passthrough", &bpf_fd,
+				  NULL, NULL), 0);
+	TESTEQUAL(mount_fuse_no_init(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	FUSE_ACTION
+		TESTERR(fd = s_open(s_pathn(3, s(mount_dir), s(folder1),
+					    s(file)),
+				    O_RDONLY | O_CLOEXEC), fd != -1);
+		TESTEQUAL(read(fd, data, sizeof(data)), strlen(contents2));
+		TESTCOND(!strcmp(data, contents2));
+		TESTEQUAL(bpf_test_no_trace("file"), 0);
+		TESTSYSCALL(close(fd));
+		fd = -1;
+		TESTSYSCALL(umount(mount_dir));
+	FUSE_DAEMON
+		struct {
+			char name[8];
+			struct fuse_entry_out feo;
+			struct fuse_entry_bpf_out febo;
+		} __attribute__((packed)) in;
+
+		TESTFUSEINIT();
+		TESTFUSEIN(FUSE_LOOKUP | FUSE_POSTFILTER, &in);
+		TEST(backing_fd = s_open(s_path(s(ft_src), s(folder2)),
+				 O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+		     backing_fd != -1);
+		TESTFUSEOUT2(fuse_entry_out, ((struct fuse_entry_out) {0}),
+			     fuse_entry_bpf_out, ((struct fuse_entry_bpf_out) {
+			.bpf_action = FUSE_ACTION_REMOVE,
+			.backing_action = FUSE_ACTION_REPLACE,
+			.backing_fd = backing_fd,
+			}));
+
+		while (read(fuse_dev, bytes_in, sizeof(bytes_in)) != -1) {
+			struct fuse_in_header *in_header =
+				(struct fuse_in_header *)bytes_in;
+
+			TESTCOND(in_header->opcode == FUSE_FORGET ||
+				 in_header->opcode == FUSE_BATCH_FORGET);
+		}
+	FUSE_DONE
+
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	close(fd);
+	close(backing_fd);
+	close(src_fd);
+	close(bpf_fd);
+	umount(mount_dir);
+	return result;
+}
+
+static int bpf_test_dir_rename(const char *mount_dir)
+{
+	const char *dir_name = "dir";
+	const char *dir_name2 = "dir2";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	struct stat st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_mkdir(s_path(s(mount_dir), s(dir_name)), 0777));
+	TESTEQUAL(bpf_test_trace("mkdir"), 0);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(dir_name)), &st));
+	TESTSYSCALL(s_rename(s_path(s(mount_dir), s(dir_name)),
+			     s_path(s(mount_dir), s(dir_name2))));
+	TESTEQUAL(s_stat(s_path(s(ft_src), s(dir_name)), &st), -1);
+	TESTEQUAL(errno, ENOENT);
+	TESTSYSCALL(s_stat(s_path(s(ft_src), s(dir_name2)), &st));
+	result = TEST_SUCCESS;
+out:
+	close(fuse_dev);
+	umount(mount_dir);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int bpf_test_file_rename(const char *mount_dir)
+{
+	const char *dir = "dir";
+	const char *file1 = "file1";
+	const char *file2 = "file2";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_mkdir(s_path(s(mount_dir), s(dir)), 0777));
+	TEST(fd = s_creat(s_pathn(3, s(mount_dir), s(dir), s(file1)), 0777),
+	     fd != -1);
+	TESTSYSCALL(s_rename(s_pathn(3, s(mount_dir), s(dir), s(file1)),
+			     s_pathn(3, s(mount_dir), s(dir), s(file2))));
+	result = TEST_SUCCESS;
+out:
+	close(fd);
+	umount(mount_dir);
+	close(fuse_dev);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+static int parse_options(int argc, char *const *argv)
+{
+	signed char c;
+
+	while ((c = getopt(argc, argv, "f:t:v")) != -1)
+		switch (c) {
+		case 'f':
+			test_options.file = strtol(optarg, NULL, 10);
+			break;
+
+		case 't':
+			test_options.test = strtol(optarg, NULL, 10);
+			break;
+
+		case 'v':
+			test_options.verbose = true;
+			break;
+
+		default:
+			return -EINVAL;
+		}
+
+	return 0;
+}
+
+struct test_case {
+	int (*pfunc)(const char *dir);
+	const char *name;
+};
+
+static void run_one_test(const char *mount_dir, struct test_case *test_case)
+{
+	ksft_print_msg("Running %s\n", test_case->name);
+	if (test_case->pfunc(mount_dir) == TEST_SUCCESS)
+		ksft_test_result_pass("%s\n", test_case->name);
+	else
+		ksft_test_result_fail("%s\n", test_case->name);
+}
+
+int main(int argc, char *argv[])
+{
+	char *mount_dir = NULL;
+	char *src_dir = NULL;
+	int i;
+	int fd, count;
+
+	if (parse_options(argc, argv))
+		ksft_exit_fail_msg("Bad options\n");
+
+	// Seed randomness pool for testing on QEMU
+	// NOTE - this abuses the concept of randomness - do *not* ever do this
+	// on a machine for production use - the device will think it has good
+	// randomness when it does not.
+	fd = open("/dev/urandom", O_WRONLY | O_CLOEXEC);
+	count = 4096;
+	for (int i = 0; i < 128; ++i)
+		ioctl(fd, RNDADDTOENTCNT, &count);
+	close(fd);
+
+	ksft_print_header();
+
+	if (geteuid() != 0)
+		ksft_print_msg("Not a root, might fail to mount.\n");
+
+	if (tracing_on() != TEST_SUCCESS)
+		ksft_exit_fail_msg("Can't turn on tracing\n");
+
+	src_dir = setup_mount_dir(ft_src);
+	mount_dir = setup_mount_dir(ft_dst);
+	if (src_dir == NULL || mount_dir == NULL)
+		ksft_exit_fail_msg("Can't create a mount dir\n");
+
+#define MAKE_TEST(test)                                                        \
+	{                                                                      \
+		test, #test                                                    \
+	}
+	struct test_case cases[] = {
+		MAKE_TEST(basic_test),
+		MAKE_TEST(bpf_test_real),
+		MAKE_TEST(bpf_test_partial),
+		MAKE_TEST(bpf_test_attrs),
+		MAKE_TEST(bpf_test_readdir),
+		MAKE_TEST(bpf_test_creat),
+		MAKE_TEST(bpf_test_hidden_entries),
+		MAKE_TEST(bpf_test_dir),
+		MAKE_TEST(bpf_test_file_early_close),
+		MAKE_TEST(bpf_test_file_late_close),
+		MAKE_TEST(bpf_test_mknod),
+		MAKE_TEST(bpf_test_largedir),
+		MAKE_TEST(bpf_test_link),
+		MAKE_TEST(bpf_test_symlink),
+		MAKE_TEST(bpf_test_xattr),
+		MAKE_TEST(bpf_test_redact_readdir),
+		MAKE_TEST(bpf_test_set_backing),
+		MAKE_TEST(bpf_test_remove_backing),
+		MAKE_TEST(bpf_test_dir_rename),
+		MAKE_TEST(bpf_test_file_rename),
+		MAKE_TEST(bpf_test_alter_errcode_bpf),
+		MAKE_TEST(bpf_test_alter_errcode_userspace),
+	};
+#undef MAKE_TEST
+
+	if (test_options.test) {
+		if (test_options.test <= 0 ||
+		    test_options.test > ARRAY_SIZE(cases))
+			ksft_exit_fail_msg("Invalid test\n");
+
+		ksft_set_plan(1);
+		delete_dir_tree(mount_dir, false);
+		delete_dir_tree(src_dir, false);
+		run_one_test(mount_dir, &cases[test_options.test - 1]);
+	} else {
+		ksft_set_plan(ARRAY_SIZE(cases));
+		for (i = 0; i < ARRAY_SIZE(cases); ++i) {
+			delete_dir_tree(mount_dir, false);
+			delete_dir_tree(src_dir, false);
+			run_one_test(mount_dir, &cases[i]);
+		}
+	}
+
+	umount2(mount_dir, MNT_FORCE);
+	delete_dir_tree(mount_dir, true);
+	delete_dir_tree(src_dir, true);
+	return !ksft_get_fail_cnt() ? ksft_exit_pass() : ksft_exit_fail();
+}
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
new file mode 100644
index 0000000000000..a5e60eec79bab
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -0,0 +1,479 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2021 Google LLC
+
+#define __EXPORTED_HEADERS__
+
+#include <uapi/linux/types.h>
+#include <uapi/linux/fuse.h>
+#include <uapi/linux/errno.h>
+
+#include <stdbool.h>
+
+#define SEC(NAME) __attribute__((section(NAME), used))
+
+static long (*bpf_trace_printk)(const char *fmt, __u32 fmt_size, ...)
+	= (void *) 6;
+
+#define bpf_printk(fmt, ...)					\
+	({			                                \
+		char ____fmt[] = fmt;                           \
+		bpf_trace_printk(____fmt, sizeof(____fmt),      \
+		                 ##__VA_ARGS__);                \
+	})
+
+SEC("dummy")
+
+inline int strcmp(const char *a, const char *b)
+{
+	int i;
+
+	for (i = 0; i < __builtin_strlen(b) + 1; ++i)
+		if (a[i] != b[i])
+			return -1;
+
+	return 0;
+}
+SEC("test_readdir_redact")
+/* return FUSE_BPF_BACKING to use backing fs, 0 to pass to usermode */
+int readdir_test(struct fuse_args *fa)
+{
+	switch (fa->opcode) {
+	case FUSE_READDIR | FUSE_PREFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+
+		bpf_printk("readdir %d", fri->fh);
+		return FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+	}
+
+	case FUSE_READDIR | FUSE_POSTFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+
+		bpf_printk("readdir postfilter %x", fri->fh);
+		return FUSE_BPF_USER_FILTER;
+	}
+
+	default:
+		bpf_printk("opcode %d", fa->opcode);
+		return FUSE_BPF_BACKING;
+	}
+}
+SEC("test_trace")
+
+/* return FUSE_BPF_BACKING to use backing fs, 0 to pass to usermode */
+int trace_test(struct fuse_args *fa)
+{
+	switch (fa->opcode) {
+	case FUSE_LOOKUP | FUSE_PREFILTER: {
+		/* real and partial use backing file */
+		const char *name = fa->in_args[0].value;
+		bool backing = false;
+
+		if (strcmp(name, "real") == 0 || strcmp(name, "partial") == 0)
+			backing = true;
+
+		if (strcmp(name, "dir") == 0)
+			backing = true;
+		if (strcmp(name, "dir2") == 0)
+			backing = true;
+
+		if (strcmp(name, "file1") == 0)
+			backing = true;
+		if (strcmp(name, "file2") == 0)
+			backing = true;
+
+		bpf_printk("lookup %s %d", name, backing);
+		return backing ? FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER : 0;
+	}
+
+	case FUSE_LOOKUP | FUSE_POSTFILTER: {
+		const char *name = fa->in_args[0].value;
+		struct fuse_entry_out *feo = fa->out_args[0].value;
+
+		if (strcmp(name, "real") == 0)
+			feo->nodeid = 5;
+		else if (strcmp(name, "partial") == 0)
+			feo->nodeid = 6;
+
+		bpf_printk("post-lookup %s %d", name, feo->nodeid);
+		return 0;
+	}
+
+	case FUSE_CREATE | FUSE_PREFILTER:
+		bpf_printk("Create: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+
+	case FUSE_MKNOD | FUSE_PREFILTER: {
+		const struct fuse_mknod_in *fmi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("mknod %s %x %x", name, fmi->rdev | fmi->mode, fmi->umask);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_MKDIR | FUSE_PREFILTER: {
+		const struct fuse_mkdir_in *fmi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("mkdir %s %x %x", name, fmi->mode, fmi->umask);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RMDIR | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("rmdir %s", name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RENAME | FUSE_PREFILTER: {
+		const char *oldname = fa->in_args[1].value;
+		const char *newname = fa->in_args[2].value;
+
+		bpf_printk("rename from %s", oldname);
+		bpf_printk("rename to %s", newname);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RENAME2 | FUSE_PREFILTER: {
+		const struct fuse_rename2_in *fri = fa->in_args[0].value;
+		uint32_t flags = fri->flags;
+		const char *oldname = fa->in_args[1].value;
+		const char *newname = fa->in_args[2].value;
+
+		bpf_printk("rename(%x) from %s", flags, oldname);
+		bpf_printk("rename to %s", newname);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_UNLINK | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("unlink %s", name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_LINK | FUSE_PREFILTER: {
+		const struct fuse_link_in *fli = fa->in_args[0].value;
+		const char *link_name = fa->in_args[1].value;
+
+		bpf_printk("link %d %s", fli->oldnodeid, link_name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_SYMLINK | FUSE_PREFILTER: {
+		const char *link_name = fa->in_args[0].value;
+		const char *link_dest = fa->in_args[1].value;
+
+		bpf_printk("symlink from %s", link_name);
+		bpf_printk("symlink to %s", link_dest);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_READLINK | FUSE_PREFILTER: {
+		const char *link_name = fa->in_args[0].value;
+
+		bpf_printk("readlink from", link_name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_OPEN | FUSE_PREFILTER: {
+		int backing = 0;
+
+		switch (fa->nodeid) {
+		case 5:
+			backing = FUSE_BPF_BACKING;
+			break;
+
+		case 6:
+			backing = FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+			break;
+
+		default:
+			break;
+		}
+
+		bpf_printk("open %d %d", fa->nodeid, backing);
+		return backing;
+	}
+
+	case FUSE_OPEN | FUSE_POSTFILTER:
+		bpf_printk("open postfilter");
+		return FUSE_BPF_USER_FILTER;
+
+	case FUSE_READ | FUSE_PREFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+
+		bpf_printk("read %llu %llu", fri->fh, fri->offset);
+		if (fri->fh == 1 && fri->offset == 0)
+			return 0;
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_GETATTR | FUSE_PREFILTER: {
+		/* real and partial use backing file */
+		int backing = 0;
+
+		switch (fa->nodeid) {
+		case 1:
+		case 5:
+		case 6:
+		/*
+		 * TODO: Find better solution
+		 * Add 100 to stop clang compiling to jump table which bpf hates
+		 */
+		case 100:
+			backing = FUSE_BPF_BACKING;
+			break;
+		}
+
+		bpf_printk("getattr %d %d", fa->nodeid, backing);
+		return backing;
+	}
+
+	case FUSE_SETATTR | FUSE_PREFILTER: {
+		/* real and partial use backing file */
+		int backing = 0;
+
+		switch (fa->nodeid) {
+		case 1:
+		case 5:
+		case 6:
+		/* TODO See above */
+		case 100:
+			backing = FUSE_BPF_BACKING;
+			break;
+		}
+
+		bpf_printk("setattr %d %d", fa->nodeid, backing);
+		return backing;
+	}
+
+	case FUSE_OPENDIR | FUSE_PREFILTER: {
+		int backing = 0;
+
+		switch (fa->nodeid) {
+		case 1:
+			backing = FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+			break;
+		}
+
+		bpf_printk("opendir %d %d", fa->nodeid, backing);
+		return backing;
+	}
+
+	case FUSE_OPENDIR | FUSE_POSTFILTER: {
+		struct fuse_open_out *foo = fa->out_args[0].value;
+
+		foo->fh = 2;
+		bpf_printk("opendir postfilter");
+		return 0;
+	}
+
+	case FUSE_READDIR | FUSE_PREFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+		int backing = 0;
+
+		if (fri->fh == 2)
+			backing = FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+
+		bpf_printk("readdir %d %d", fri->fh, backing);
+		return backing;
+	}
+
+	case FUSE_READDIR | FUSE_POSTFILTER: {
+		const struct fuse_read_in *fri = fa->in_args[0].value;
+		int backing = 0;
+
+		if (fri->fh == 2)
+			backing = FUSE_BPF_USER_FILTER | FUSE_BPF_BACKING |
+				  FUSE_BPF_POST_FILTER;
+
+		bpf_printk("readdir postfilter %d %d", fri->fh, backing);
+		return backing;
+	}
+
+	case FUSE_FLUSH | FUSE_PREFILTER: {
+		const struct fuse_flush_in *ffi = fa->in_args[0].value;
+
+		bpf_printk("Flush %d", ffi->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_GETXATTR | FUSE_PREFILTER: {
+		const struct fuse_flush_in *ffi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("getxattr %d %s", ffi->fh, name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_LISTXATTR | FUSE_PREFILTER: {
+		const struct fuse_flush_in *ffi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+
+		bpf_printk("listxattr %d %s", ffi->fh, name);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_SETXATTR | FUSE_PREFILTER: {
+		const struct fuse_flush_in *ffi = fa->in_args[0].value;
+		const char *name = fa->in_args[1].value;
+		unsigned int size = fa->in_args[2].size;
+
+		bpf_printk("setxattr %d %s %u", ffi->fh, name, size);
+		return FUSE_BPF_BACKING;
+	}
+
+	default:
+		bpf_printk("Unknown opcode %d", fa->opcode);
+		return 0;
+	}
+}
+
+SEC("test_hidden")
+
+int trace_hidden(struct fuse_args *fa)
+{
+	switch (fa->opcode) {
+	case FUSE_LOOKUP | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("Lookup: %s", name);
+		if (!strcmp(name, "show"))
+			return FUSE_BPF_BACKING;
+		if (!strcmp(name, "hide"))
+			return -ENOENT;
+
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_CREATE | FUSE_PREFILTER:
+		bpf_printk("Create: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+
+	case FUSE_WRITE | FUSE_PREFILTER:
+	// TODO: Clang combines similar printk calls, causing BPF to complain
+	//	bpf_printk("Write: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+
+	case FUSE_FLUSH | FUSE_PREFILTER: {
+	//	const struct fuse_flush_in *ffi = fa->in_args[0].value;
+
+	//	bpf_printk("Flush %d", ffi->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_RELEASE | FUSE_PREFILTER: {
+	//	const struct fuse_release_in *fri = fa->in_args[0].value;
+
+	//	bpf_printk("Release %d", fri->fh);
+		return FUSE_BPF_BACKING;
+	}
+
+	case FUSE_FALLOCATE | FUSE_PREFILTER:
+	//	bpf_printk("fallocate %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+
+	default:
+		bpf_printk("Unknown opcode: %d", fa->opcode);
+		return 0;
+	}
+}
+
+SEC("test_simple")
+int trace_simple(struct fuse_args *fa)
+{
+	if (fa->opcode & FUSE_PREFILTER)
+		bpf_printk("prefilter opcode: %d",
+			   fa->opcode & FUSE_OPCODE_FILTER);
+	else if (fa->opcode & FUSE_POSTFILTER)
+		bpf_printk("postfilter opcode: %d",
+			   fa->opcode & FUSE_OPCODE_FILTER);
+	else
+		bpf_printk("*** UNKNOWN *** opcode: %d", fa->opcode);
+	return FUSE_BPF_BACKING;
+}
+
+SEC("test_passthrough")
+int trace_daemon(struct fuse_args *fa)
+{
+	switch (fa->opcode) {
+	case FUSE_LOOKUP | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("Lookup prefilter: %lx %s", fa->nodeid, name);
+		return FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+	}
+
+	case FUSE_LOOKUP | FUSE_POSTFILTER: {
+		const char *name = fa->in_args[0].value;
+		struct fuse_entry_bpf_out *febo = fa->out_args[1].value;
+
+		bpf_printk("Lookup postfilter: %lx %s %lu", fa->nodeid, name);
+		febo->bpf_action = FUSE_ACTION_REMOVE;
+
+		return FUSE_BPF_USER_FILTER;
+	}
+
+	default:
+		if (fa->opcode & FUSE_PREFILTER)
+			bpf_printk("prefilter opcode: %d",
+				   fa->opcode & FUSE_OPCODE_FILTER);
+		else if (fa->opcode & FUSE_POSTFILTER)
+			bpf_printk("postfilter opcode: %d",
+				   fa->opcode & FUSE_OPCODE_FILTER);
+		else
+			bpf_printk("*** UNKNOWN *** opcode: %d", fa->opcode);
+		return FUSE_BPF_BACKING;
+	}
+}
+
+SEC("test_error")
+
+/* return FUSE_BPF_BACKING to use backing fs, 0 to pass to usermode */
+int error_test(struct fuse_args *fa)
+{
+	switch (fa->opcode) {
+	case FUSE_MKDIR | FUSE_PREFILTER: {
+		bpf_printk("mkdir");
+		return FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+	}
+	case FUSE_MKDIR | FUSE_POSTFILTER: {
+		bpf_printk("mkdir postfilter");
+		if (fa->error_in == -EEXIST)
+			return -EPERM;
+
+		return 0;
+	}
+
+	case FUSE_LOOKUP | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("lookup prefilter %s", name);
+		return FUSE_BPF_BACKING | FUSE_BPF_POST_FILTER;
+	}
+	case FUSE_LOOKUP | FUSE_POSTFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("lookup postfilter %s %d", name, fa->error_in);
+		if (strcmp(name, "doesnotexist") == 0/* && fa->error_in == -EEXIST*/) {
+			bpf_printk("lookup postfilter doesnotexist");
+			return FUSE_BPF_USER_FILTER;
+		}
+		bpf_printk("meh");
+		return 0;
+	}
+
+	default:
+		if (fa->opcode & FUSE_PREFILTER)
+			bpf_printk("prefilter opcode: %d",
+				   fa->opcode & FUSE_OPCODE_FILTER);
+		else if (fa->opcode & FUSE_POSTFILTER)
+			bpf_printk("postfilter opcode: %d",
+				   fa->opcode & FUSE_OPCODE_FILTER);
+		else
+			bpf_printk("*** UNKNOWN *** opcode: %d", fa->opcode);
+		return FUSE_BPF_BACKING;
+	}
+}
+
diff --git a/tools/testing/selftests/filesystems/fuse/test_framework.h b/tools/testing/selftests/filesystems/fuse/test_framework.h
new file mode 100644
index 0000000000000..945f141e9a667
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/test_framework.h
@@ -0,0 +1,175 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 Google LLC
+ */
+
+#ifndef _TEST_FRAMEWORK_H
+#define _TEST_FRAMEWORK_H
+
+#include <stdbool.h>
+#include <stdio.h>
+
+#ifdef __ANDROID__
+static int test_case_pass;
+static int test_case_fail;
+#define ksft_print_msg			printf
+#define ksft_test_result_pass(...)	({test_case_pass++; printf(__VA_ARGS__); })
+#define ksft_test_result_fail(...)	({test_case_fail++; printf(__VA_ARGS__); })
+#define ksft_exit_fail_msg(...)		printf(__VA_ARGS__)
+#define ksft_print_header()
+#define ksft_set_plan(cnt)
+#define ksft_get_fail_cnt()		test_case_fail
+#define ksft_exit_pass()		0
+#define ksft_exit_fail()		1
+#else
+#include <kselftest.h>
+#endif
+
+#define TEST_FAILURE 1
+#define TEST_SUCCESS 0
+
+#define ptr_to_u64(p) ((__u64)p)
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define le16_to_cpu(x)          (x)
+#define le32_to_cpu(x)          (x)
+#define le64_to_cpu(x)          (x)
+#else
+#error Big endian not supported!
+#endif
+
+struct _test_options {
+	int file;
+	int test;
+	bool verbose;
+};
+
+extern struct _test_options test_options;
+
+#define TESTCOND(condition)						\
+	do {								\
+		if (!(condition)) {					\
+			ksft_print_msg("%s failed %d\n",		\
+				       __func__, __LINE__);		\
+			goto out;					\
+		} else if (test_options.verbose)			\
+			ksft_print_msg("%s succeeded %d\n",		\
+				       __func__, __LINE__);		\
+	} while (false)
+
+#define TESTCONDERR(condition)						\
+	do {								\
+		if (!(condition)) {					\
+			ksft_print_msg("%s failed %d\n",		\
+				       __func__, __LINE__);		\
+			ksft_print_msg("Error %d (\"%s\")\n",		\
+				       errno, strerror(errno));		\
+			goto out;					\
+		} else if (test_options.verbose)			\
+			ksft_print_msg("%s succeeded %d\n",		\
+				       __func__, __LINE__);		\
+	} while (false)
+
+#define TEST(statement, condition)					\
+	do {								\
+		statement;						\
+		TESTCOND(condition);					\
+	} while (false)
+
+#define TESTERR(statement, condition)					\
+	do {								\
+		statement;						\
+		TESTCONDERR(condition);					\
+	} while (false)
+
+enum _operator {
+	_eq,
+	_ne,
+	_ge,
+};
+
+static const char * const _operator_name[] = {
+	"==",
+	"!=",
+	">=",
+};
+
+#define _TEST_OPERATOR(name, _type, format_specifier)			\
+static inline int _test_operator_##name(const char *func, int line,	\
+				_type a, _type b, enum _operator o)	\
+{									\
+	bool pass;							\
+	switch (o) {							\
+	case _eq: pass = a == b; break;					\
+	case _ne: pass = a != b; break;					\
+	case _ge: pass = a >= b; break;					\
+	}								\
+									\
+	if (!pass)							\
+		ksft_print_msg("Failed: %s at line %d, "		\
+			       format_specifier " %s "			\
+			       format_specifier	"\n",			\
+			       func, line, a, _operator_name[o], b);	\
+	else if (test_options.verbose)					\
+		ksft_print_msg("Passed: %s at line %d, "		\
+			       format_specifier " %s "			\
+			       format_specifier "\n",			\
+			       func, line, a, _operator_name[o], b);	\
+									\
+	return pass ? TEST_SUCCESS : TEST_FAILURE;			\
+}
+
+_TEST_OPERATOR(i, int, "%d")
+_TEST_OPERATOR(ui, unsigned int, "%u")
+_TEST_OPERATOR(lui, unsigned long, "%lu")
+_TEST_OPERATOR(ss, ssize_t, "%zd")
+_TEST_OPERATOR(vp, void *, "%px")
+_TEST_OPERATOR(cp, char *, "%px")
+
+#define _CALL_TO(_type, name, a, b, o)					\
+	_type:_test_operator_##name(__func__, __LINE__,			\
+				  (_type) (long long) (a),		\
+				  (_type) (long long) (b), o)
+
+#define TESTOPERATOR(a, b, o)						\
+	do {								\
+		if (_Generic((a),					\
+			     _CALL_TO(int, i, a, b, o),			\
+			     _CALL_TO(unsigned int, ui, a, b, o),	\
+			     _CALL_TO(unsigned long, lui, a, b, o),	\
+			     _CALL_TO(ssize_t, ss, a, b, o),		\
+			     _CALL_TO(void *, vp, a, b, o),		\
+			     _CALL_TO(char *, cp, a, b, o)		\
+		))							\
+			goto out;					\
+	} while (false)
+
+#define TESTEQUAL(a, b) TESTOPERATOR(a, b, _eq)
+#define TESTNE(a, b) TESTOPERATOR(a, b, _ne)
+#define TESTGE(a, b) TESTOPERATOR(a, b, _ge)
+
+/* For testing a syscall that returns 0 on success and sets errno otherwise */
+#define TESTSYSCALL(statement) TESTCONDERR((statement) == 0)
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+
+static inline void print_bytes(const void *data, size_t size)
+{
+	const char *bytes = data;
+	int i;
+
+	for (i = 0; i < size; ++i) {
+		if (i % 0x10 == 0)
+			printf("%08x:", i);
+		printf("%02x ", (unsigned int) (unsigned char) bytes[i]);
+		if (i % 0x10 == 0x0f)
+			printf("\n");
+	}
+
+	if (i % 0x10 != 0)
+		printf("\n");
+}
+
+
+
+#endif
diff --git a/tools/testing/selftests/filesystems/fuse/test_fuse.h b/tools/testing/selftests/filesystems/fuse/test_fuse.h
new file mode 100644
index 0000000000000..642d4fbee08fa
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/test_fuse.h
@@ -0,0 +1,306 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 Google LLC
+ */
+
+#ifndef TEST_FUSE__H
+#define TEST_FUSE__H
+
+#define _GNU_SOURCE
+
+#include "test_framework.h"
+
+#include <dirent.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#define PAGE_SIZE 4096
+#define FUSE_POSTFILTER 0x20000
+
+extern struct _test_options test_options;
+
+/* Slow but semantically easy string functions */
+
+/*
+ * struct s just wraps a char pointer
+ * It is a pointer to a malloc'd string, or null
+ * All consumers handle null input correctly
+ * All consumers free the string
+ */
+struct s {
+	char *s;
+};
+
+struct s s(const char *s1);
+struct s sn(const char *s1, const char *s2);
+int s_cmp(struct s s1, struct s s2);
+struct s s_cat(struct s s1, struct s s2);
+struct s s_splitleft(struct s s1, char c);
+struct s s_splitright(struct s s1, char c);
+struct s s_word(struct s s1, char c, size_t n);
+struct s s_path(struct s s1, struct s s2);
+struct s s_pathn(size_t n, struct s s1, ...);
+int s_link(struct s src_pathname, struct s dst_pathname);
+int s_symlink(struct s src_pathname, struct s dst_pathname);
+int s_mkdir(struct s pathname, mode_t mode);
+int s_rmdir(struct s pathname);
+int s_unlink(struct s pathname);
+int s_open(struct s pathname, int flags, ...);
+int s_openat(int dirfd, struct s pathname, int flags, ...);
+int s_creat(struct s pathname, mode_t mode);
+int s_mkfifo(struct s pathname, mode_t mode);
+int s_stat(struct s pathname, struct stat *st);
+DIR *s_opendir(struct s pathname);
+int s_getxattr(struct s pathname, const char name[], void *value, size_t size,
+	       ssize_t *ret_size);
+int s_listxattr(struct s pathname, void *list, size_t size, ssize_t *ret_size);
+int s_setxattr(struct s pathname, const char name[], const void *value,
+	       size_t size, int flags);
+int s_rename(struct s oldpathname, struct s newpathname);
+
+struct s tracing_folder(void);
+int tracing_on(void);
+
+char *concat_file_name(const char *dir, const char *file);
+char *setup_mount_dir(const char *name);
+int delete_dir_tree(const char *dir_path, bool remove_root);
+
+#define TESTFUSEIN(_opcode, in_struct)					\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		ssize_t res = read(fuse_dev, &bytes_in,			\
+			sizeof(bytes_in));				\
+									\
+		TESTEQUAL(in_header->opcode, _opcode);			\
+		TESTEQUAL(res, sizeof(*in_header) + sizeof(*in_struct));\
+	} while (false)
+
+#define TESTFUSEIN2(_opcode, in_struct1, in_struct2)			\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		ssize_t res = read(fuse_dev, &bytes_in,			\
+			sizeof(bytes_in));				\
+									\
+		TESTEQUAL(in_header->opcode, _opcode);			\
+		TESTEQUAL(res, sizeof(*in_header) + sizeof(*in_struct1) \
+						+ sizeof(*in_struct2)); \
+		in_struct1 = (void *)(bytes_in + sizeof(*in_header));	\
+		in_struct2 = (void *)(bytes_in + sizeof(*in_header)	\
+				      + sizeof(*in_struct1));		\
+	} while (false)
+
+#define TESTFUSEINEXT(_opcode, in_struct, extra)			\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		ssize_t res = read(fuse_dev, &bytes_in,			\
+			sizeof(bytes_in));				\
+									\
+		TESTEQUAL(in_header->opcode, _opcode);			\
+		TESTEQUAL(res,						\
+		       sizeof(*in_header) + sizeof(*in_struct) + extra);\
+	} while (false)
+
+#define TESTFUSEINUNKNOWN()						\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		ssize_t res = read(fuse_dev, &bytes_in,			\
+			sizeof(bytes_in));				\
+									\
+		TESTGE(res, sizeof(*in_header));			\
+		TESTEQUAL(in_header->opcode, -1);			\
+	} while (false)
+
+/* Special case lookup since it is asymmetric */
+#define TESTFUSELOOKUP(expected, filter)				\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		char *name = (char *) (bytes_in + sizeof(*in_header));	\
+		ssize_t res;						\
+									\
+		TEST(res = read(fuse_dev, &bytes_in, sizeof(bytes_in)),	\
+			  res != -1);					\
+		/* TODO once we handle forgets properly, remove */	\
+		if (in_header->opcode == FUSE_FORGET)			\
+			continue;					\
+		if (in_header->opcode == FUSE_BATCH_FORGET)		\
+			continue;					\
+		TESTGE(res, sizeof(*in_header));			\
+		TESTEQUAL(in_header->opcode,				\
+			FUSE_LOOKUP | filter);				\
+		TESTEQUAL(res,						\
+			  sizeof(*in_header) + strlen(expected) + 1 +	\
+				(filter == FUSE_POSTFILTER ?		\
+				sizeof(struct fuse_entry_out) +		\
+				sizeof(struct fuse_entry_bpf_out) : 0));\
+		TESTCOND(!strcmp(name, expected));			\
+		break;							\
+	} while (true)
+
+#define TESTFUSEOUTEMPTY()						\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		struct fuse_out_header *out_header =			\
+			(struct fuse_out_header *)bytes_out;		\
+									\
+		*out_header = (struct fuse_out_header) {		\
+			.len = sizeof(*out_header),			\
+			.unique = in_header->unique,			\
+		};							\
+		TESTEQUAL(write(fuse_dev, bytes_out, out_header->len),	\
+			  out_header->len);				\
+	} while (false)
+
+#define TESTFUSEOUTERROR(errno)						\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		struct fuse_out_header *out_header =			\
+			(struct fuse_out_header *)bytes_out;		\
+									\
+		*out_header = (struct fuse_out_header) {		\
+			.len = sizeof(*out_header),			\
+			.error = errno,					\
+			.unique = in_header->unique,			\
+		};							\
+		TESTEQUAL(write(fuse_dev, bytes_out, out_header->len),	\
+			  out_header->len);				\
+	} while (false)
+
+#define TESTFUSEOUTREAD(data, length)					\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		struct fuse_out_header *out_header =			\
+			(struct fuse_out_header *)bytes_out;		\
+									\
+		*out_header = (struct fuse_out_header) {		\
+			.len = sizeof(*out_header) + length,		\
+			.unique = in_header->unique,			\
+		};							\
+		memcpy(bytes_out + sizeof(*out_header), data, length);	\
+		TESTEQUAL(write(fuse_dev, bytes_out, out_header->len),	\
+			  out_header->len);				\
+	} while (false)
+
+#define TESTFUSEDIROUTREAD(read_out, data, length)			\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		struct fuse_out_header *out_header =			\
+			(struct fuse_out_header *)bytes_out;		\
+									\
+		*out_header = (struct fuse_out_header) {		\
+			.len = sizeof(*out_header) +			\
+			       sizeof(*read_out) + length,		\
+			.unique = in_header->unique,			\
+		};							\
+		memcpy(bytes_out + sizeof(*out_header) +		\
+				sizeof(*read_out), data, length);	\
+		memcpy(bytes_out + sizeof(*out_header),			\
+				read_out, sizeof(*read_out));		\
+		TESTEQUAL(write(fuse_dev, bytes_out, out_header->len),	\
+			  out_header->len);				\
+	} while (false)
+
+#define TESTFUSEOUT1(type1, obj1)					\
+	do {								\
+		*(struct fuse_out_header *) bytes_out			\
+			= (struct fuse_out_header) {			\
+			.len = sizeof(struct fuse_out_header)		\
+				+ sizeof(struct type1),			\
+			.unique = ((struct fuse_in_header *)		\
+				   bytes_in)->unique,			\
+		};							\
+		*(struct type1 *) (bytes_out				\
+			+ sizeof(struct fuse_out_header))		\
+			= obj1;						\
+		TESTEQUAL(write(fuse_dev, bytes_out,			\
+			((struct fuse_out_header *)bytes_out)->len),	\
+			((struct fuse_out_header *)bytes_out)->len);	\
+	} while (false)
+
+#define TESTFUSEOUT2(type1, obj1, type2, obj2)				\
+	do {								\
+		*(struct fuse_out_header *) bytes_out			\
+			= (struct fuse_out_header) {			\
+			.len = sizeof(struct fuse_out_header)		\
+				+ sizeof(struct type1)			\
+				+ sizeof(struct type2),			\
+			.unique = ((struct fuse_in_header *)		\
+				   bytes_in)->unique,			\
+		};							\
+		*(struct type1 *) (bytes_out				\
+			+ sizeof(struct fuse_out_header))		\
+			= obj1;						\
+		*(struct type2 *) (bytes_out				\
+			+ sizeof(struct fuse_out_header)		\
+			+ sizeof(struct type1))				\
+			= obj2;						\
+		TESTEQUAL(write(fuse_dev, bytes_out,			\
+			((struct fuse_out_header *)bytes_out)->len),	\
+			((struct fuse_out_header *)bytes_out)->len);	\
+	} while (false)
+
+#define TESTFUSEINIT()							\
+	do {								\
+		DECL_FUSE_IN(init);					\
+									\
+		TESTFUSEIN(FUSE_INIT, init_in);				\
+		TESTEQUAL(init_in->major, FUSE_KERNEL_VERSION);		\
+		TESTEQUAL(init_in->minor, FUSE_KERNEL_MINOR_VERSION);	\
+		TESTFUSEOUT1(fuse_init_out, ((struct fuse_init_out) {	\
+			.major = FUSE_KERNEL_VERSION,			\
+			.minor = FUSE_KERNEL_MINOR_VERSION,		\
+			.max_readahead = 4096,				\
+			.flags = 0,					\
+			.max_background = 0,				\
+			.congestion_threshold = 0,			\
+			.max_write = 4096,				\
+			.time_gran = 1000,				\
+			.max_pages = 12,				\
+			.map_alignment = 4096,				\
+		}));							\
+	} while (false)
+
+#define DECL_FUSE_IN(name)						\
+	struct fuse_##name##_in *name##_in =				\
+		(struct fuse_##name##_in *)				\
+		(bytes_in + sizeof(struct fuse_in_header))
+
+#define DECL_FUSE(name)							\
+	struct fuse_##name##_in *name##_in __attribute__((unused));	\
+	struct fuse_##name##_out *name##_out __attribute__((unused))
+
+#define FUSE_ACTION	TEST(pid = fork(), pid != -1);			\
+			if (pid) {
+
+#define FUSE_DAEMON	} else {					\
+				uint8_t bytes_in[FUSE_MIN_READ_BUFFER]	\
+					__attribute__((unused));	\
+				uint8_t bytes_out[FUSE_MIN_READ_BUFFER]	\
+					__attribute__((unused));
+
+#define FUSE_DONE		exit(TEST_SUCCESS);			\
+			}						\
+			TESTEQUAL(waitpid(pid, &status, 0), pid);	\
+			TESTEQUAL(status, TEST_SUCCESS);
+
+struct map_relocation {
+	char *name;
+	int fd;
+	int value;
+};
+
+int mount_fuse(const char *mount_dir, int bpf_fd, int dir_fd,
+	       int *fuse_dev_ptr);
+int mount_fuse_no_init(const char *mount_dir, int bpf_fd, int dir_fd,
+	       int *fuse_dev_ptr);
+int install_elf_bpf(const char *file, const char *section, int *fd,
+		    struct map_relocation **map_relocations, size_t *map_count);
+#endif
-- 
GitLab


From 9fac29f645df35d5072929a74e1c82fbf9cee11b Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Tue, 14 Dec 2021 13:05:37 +0100
Subject: [PATCH 2239/4878] FROMLIST: scsi: ufs: Fix deadlock issue in
 ufshcd_wait_for_doorbell_clr()

Call shost_for_each_device() with holding host->host_lock will cause
a deadlock situation, which will cause the system to stall (the log
as follow). Fix this issue by using __shost_for_each_device() in
ufshcd_pending_cmds().

stalls on CPUs/tasks:
all trace:
__switch_to+0x120/0x170
0xffff800011643998
ask dump for CPU 5:
ask:kworker/u16:2   state:R  running task     stack:    0 pid:   80 ppid:     2 flags:0x0000000a
orkqueue: events_unbound async_run_entry_fn
all trace:
__switch_to+0x120/0x170
0x0
ask dump for CPU 6:
ask:kworker/u16:6   state:R  running task     stack:    0 pid:  164 ppid:     2 flags:0x0000000a
orkqueue: events_unbound async_run_entry_fn
all trace:
__switch_to+0x120/0x170
0xffff54e7c4429f80
ask dump for CPU 7:
ask:kworker/u16:4   state:R  running task     stack:    0 pid:  153 ppid:     2 flags:0x0000000a
orkqueue: events_unbound async_run_entry_fn
all trace:
__switch_to+0x120/0x170
blk_mq_run_hw_queue+0x34/0x110
blk_mq_sched_insert_request+0xb0/0x120
blk_execute_rq_nowait+0x68/0x88
blk_execute_rq+0x4c/0xd8
__scsi_execute+0xec/0x1d0
scsi_vpd_inquiry+0x84/0xf0
scsi_get_vpd_buf+0x34/0xb8
scsi_attach_vpd+0x34/0x140
scsi_probe_and_add_lun+0xa6c/0xab8
__scsi_scan_target+0x438/0x4f8
scsi_scan_channel+0x6c/0xa8
scsi_scan_host_selected+0xf0/0x150
do_scsi_scan_host+0x88/0x90
scsi_scan_host+0x1b4/0x1d0
ufshcd_async_scan+0x248/0x310
async_run_entry_fn+0x30/0x178
process_one_work+0x1e8/0x368
worker_thread+0x40/0x478
kthread+0x174/0x180
ret_from_fork+0x10/0x20

Fixes: 198b86493c92 ("BACKPORT: FROMGIT: scsi: ufs: Optimize the command queueing code")
Reported-by: YongQin Liu <yongqin.liu@linaro.org>
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
[ bvanassche: modified "Fixes" tag ]
Link: https://lore.kernel.org/linux-scsi/20211214120537.531628-1-huobean@gmail.com/T/#u
Change-Id: I13a9b9aef63a499323ff5652314ab174f81e987e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 17c72820a6820..0ff57a9e5ab00 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1100,7 +1100,8 @@ static u32 ufshcd_pending_cmds(struct ufs_hba *hba)
 	struct scsi_device *sdev;
 	u32 pending = 0;
 
-	shost_for_each_device(sdev, hba->host)
+	lockdep_assert_held(hba->host->host_lock);
+	__shost_for_each_device(sdev, hba->host)
 		pending += atomic_read(&sdev->device_busy);
 
 	return pending;
-- 
GitLab


From 45f8132b6d8d0d87daa8ee734d5bc85f36f66d6c Mon Sep 17 00:00:00 2001
From: Victor Shutemov <victor@haleytek.com>
Date: Wed, 15 Dec 2021 12:04:22 +0100
Subject: [PATCH 2240/4878] ANDROID: GKI: update virtual device symbol list

Reorder vlan symbols and put under the right module comment.

Bug: 210119134

Signed-off-by: Victor Shutemov <victor@haleytek.com>
Change-Id: I2754f4525eb3eced6ae58c8468f7c6040c33d162
---
 android/abi_gki_aarch64_virtual_device | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index fa9865f9da12c..e6fe67b4393be 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -501,11 +501,6 @@
 # required by failover.ko
   netdev_master_upper_dev_link
   rtnl_is_locked
-  vlan_uses_dev
-  vlan_vid_add
-  vlan_vid_del
-  vlan_vids_add_by_dev
-  vlan_vids_del_by_dev
 
 # required by gnss-cmdline.ko
   bus_find_device
@@ -660,6 +655,11 @@
   netdev_lower_state_changed
   netdev_pick_tx
   pci_bus_type
+  vlan_uses_dev
+  vlan_vid_add
+  vlan_vid_del
+  vlan_vids_add_by_dev
+  vlan_vids_del_by_dev
 
 # required by psmouse.ko
   bus_register_notifier
-- 
GitLab


From 0975fd934e9e34adabeca8205a672ff6346581bb Mon Sep 17 00:00:00 2001
From: Xuewen Yan <xuewen.yan@unisoc.com>
Date: Tue, 14 Dec 2021 13:48:31 +0800
Subject: [PATCH 2241/4878] ANDROID: Add vendor hook for the sugov_get_util

android_vh_sugov_get_util:
    To get vendor-specific cpu util.

Bug: 210789284
Test: build pass

Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Change-Id: Id755c88a15064593280f3e568e1eaabdca9f4dd7
---
 drivers/android/vendor_hooks.c   | 1 +
 include/trace/hooks/sched.h      | 4 ++++
 kernel/sched/cpufreq_schedutil.c | 5 +++++
 3 files changed, 10 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 3714a17963d96..d4a9b0dfe846e 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -189,6 +189,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ftrace_dump_buffer);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_allow_domain_state);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_map_util_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_update_next_freq);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sugov_get_util);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_report_bug);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_em_cpu_energy);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_up);
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index ac58cf3b312ec..a9884beaf2e8a 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -241,6 +241,10 @@ DECLARE_HOOK(android_vh_update_next_freq,
 		unsigned int *new_next_freq, s64 delta_ns),
 	TP_ARGS(policy, old_next_freq, new_next_freq, delta_ns));
 
+DECLARE_HOOK(android_vh_sugov_get_util,
+	TP_PROTO(unsigned int cpu, unsigned long *ret),
+	TP_ARGS(cpu, ret));
+
 struct em_perf_domain;
 DECLARE_HOOK(android_vh_em_cpu_energy,
 	TP_PROTO(struct em_perf_domain *pd,
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index fe914ba418322..2ee872716c5f2 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -294,6 +294,11 @@ static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu)
 	struct rq *rq = cpu_rq(sg_cpu->cpu);
 	unsigned long util = cpu_util_cfs(rq);
 	unsigned long max = arch_scale_cpu_capacity(sg_cpu->cpu);
+	unsigned long ret = 0;
+
+	trace_android_vh_sugov_get_util(sg_cpu->cpu, &ret);
+	if (ret)
+		return ret;
 
 	sg_cpu->max = max;
 	sg_cpu->bw_dl = cpu_bw_dl(rq);
-- 
GitLab


From 53da0b1cacf3331cbc9f32146a5e21c4a7b98c0a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 18 Dec 2020 15:56:24 +0100
Subject: [PATCH 2242/4878] UPSTREAM: ALSA: memalloc: Align buffer allocations
 in page size

Currently the standard memory allocator (snd_dma_malloc_pages*())
passes the byte size to allocate as is.  Most of the backends
allocates real pages, hence the actual allocations are aligned in page
size.  However, the genalloc doesn't seem assuring the size alignment,
hence it may result in the access outside the buffer when the whole
memory pages are exposed via mmap.

For avoiding such inconsistencies, this patch makes the allocation
size always to be aligned in page size.

Note that, after this change, snd_dma_buffer.bytes field contains the
aligned size, not the originally requested size.  This value is also
used for releasing the pages in return.

BUG: 209931573
cherry picked from commit 5c1733e33c888a3cb7f576564d8ad543d5ad4a9e
Change-Id: Ib65f0e29b87d55e13006c7416793a4539d376cc8
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20201218145625.2045-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Denis Hsu <denis.hsu@mediatek.com>
---
 sound/core/memalloc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 0f335162f87c7..966bef5acc750 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -133,6 +133,7 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size,
 	if (WARN_ON(!dmab))
 		return -ENXIO;
 
+	size = PAGE_ALIGN(size);
 	dmab->dev.type = type;
 	dmab->dev.dev = device;
 	dmab->bytes = 0;
-- 
GitLab


From 728c926af8facade70a6a888ac7a232cd14f6cd5 Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Wed, 3 Feb 2021 12:34:45 -0800
Subject: [PATCH 2243/4878] UPSTREAM: libbpf: Stop using feature-detection
 Makefiles

Libbpf's Makefile relies on Linux tools infrastructure's feature detection
framework, but libbpf's needs are very modest: it detects the presence of
libelf and libz, both of which are mandatory. So it doesn't benefit much from
the framework, but pays significant costs in terms of maintainability and
debugging experience, when something goes wrong. The other feature detector,
testing for the presernce of minimal BPF API in system headers is long
obsolete as well, providing no value.

So stop using feature detection and just assume the presence of libelf and
libz during build time. Worst case, user will get a clear and actionable
linker error, e.g.:

  /usr/bin/ld: cannot find -lelf

On the other hand, we completely bypass recurring issues various users
reported over time with false negatives of feature detection (libelf or libz
not being detected, while they are actually present in the system).

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/bpf/20210203203445.3356114-1-andrii@kernel.org
(cherry picked from commit 5f10c1aac8b29d225d19a74656865d1ee3db6eaa)
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I3a3f9ed4c382c1106f9d4570f9cd3ed528954ee6
---
 tools/lib/bpf/.gitignore |  1 -
 tools/lib/bpf/Makefile   | 47 ++++------------------------------------
 2 files changed, 4 insertions(+), 44 deletions(-)

diff --git a/tools/lib/bpf/.gitignore b/tools/lib/bpf/.gitignore
index 8a81b3679d2b9..5d4cfac671d54 100644
--- a/tools/lib/bpf/.gitignore
+++ b/tools/lib/bpf/.gitignore
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 libbpf_version.h
 libbpf.pc
-FEATURE-DUMP.libbpf
 libbpf.so.*
 TAGS
 tags
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index 154b75fc1373e..6841c86bfe216 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -59,28 +59,7 @@ ifndef VERBOSE
   VERBOSE = 0
 endif
 
-FEATURE_USER = .libbpf
-FEATURE_TESTS = libelf zlib bpf
-FEATURE_DISPLAY = libelf zlib bpf
-
 INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/tools/include/uapi
-FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
-
-check_feat := 1
-NON_CHECK_FEAT_TARGETS := clean TAGS tags cscope help
-ifdef MAKECMDGOALS
-ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
-  check_feat := 0
-endif
-endif
-
-ifeq ($(check_feat),1)
-ifeq ($(FEATURES_DUMP),)
-include $(srctree)/tools/build/Makefile.feature
-else
-include $(FEATURES_DUMP)
-endif
-endif
 
 export prefix libdir src obj
 
@@ -157,7 +136,7 @@ all: fixdep
 
 all_cmd: $(CMD_TARGETS) check
 
-$(BPF_IN_SHARED): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
+$(BPF_IN_SHARED): force $(BPF_HELPER_DEFS)
 	@(test -f ../../include/uapi/linux/bpf.h -a -f ../../../include/uapi/linux/bpf.h && ( \
 	(diff -B ../../include/uapi/linux/bpf.h ../../../include/uapi/linux/bpf.h >/dev/null) || \
 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'" >&2 )) || true
@@ -175,7 +154,7 @@ $(BPF_IN_SHARED): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h'" >&2 )) || true
 	$(Q)$(MAKE) $(build)=libbpf OUTPUT=$(SHARED_OBJDIR) CFLAGS="$(CFLAGS) $(SHLIB_FLAGS)"
 
-$(BPF_IN_STATIC): force elfdep zdep bpfdep $(BPF_HELPER_DEFS)
+$(BPF_IN_STATIC): force $(BPF_HELPER_DEFS)
 	$(Q)$(MAKE) $(build)=libbpf OUTPUT=$(STATIC_OBJDIR)
 
 $(BPF_HELPER_DEFS): $(srctree)/tools/include/uapi/linux/bpf.h
@@ -264,34 +243,16 @@ install_pkgconfig: $(PC_FILE)
 
 install: install_lib install_pkgconfig install_headers
 
-### Cleaning rules
-
-config-clean:
-	$(call QUIET_CLEAN, feature-detect)
-	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null
-
-clean: config-clean
+clean:
 	$(call QUIET_CLEAN, libbpf) $(RM) -rf $(CMD_TARGETS)		     \
 		*~ .*.d .*.cmd LIBBPF-CFLAGS $(BPF_HELPER_DEFS)		     \
 		$(SHARED_OBJDIR) $(STATIC_OBJDIR)			     \
 		$(addprefix $(OUTPUT),					     \
 			    *.o *.a *.so *.so.$(LIBBPF_MAJOR_VERSION) *.pc)
-	$(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf
-
-
 
-PHONY += force elfdep zdep bpfdep cscope tags
+PHONY += force cscope tags
 force:
 
-elfdep:
-	@if [ "$(feature-libelf)" != "1" ]; then echo "No libelf found"; exit 1 ; fi
-
-zdep:
-	@if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
-
-bpfdep:
-	@if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit 1 ; fi
-
 cscope:
 	ls *.c *.h > cscope.files
 	cscope -b -q -I $(srctree)/include -f cscope.out
-- 
GitLab


From 0e387dc8bb352928d3d050ebd3b8de30101971f6 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 4 Nov 2021 13:42:56 -0700
Subject: [PATCH 2244/4878] ANDROID: percpu-rwsem: enable percpu_sem
 destruction in atomic context

Calling percpu_free_rwsem in atomic context results in "scheduling while
atomic" bug being triggered:

BUG: scheduling while atomic: klogd/158/0x00000002
...
  __schedule_bug+0x191/0x290
  schedule_debug+0x97/0x180
  __schedule+0xdc/0xba0
  schedule+0xda/0x250
  schedule_timeout+0x92/0x2d0
  __wait_for_common+0x25b/0x430
  wait_for_completion+0x1f/0x30
  rcu_barrier+0x440/0x4f0
  rcu_sync_dtor+0xaa/0x190
  percpu_free_rwsem+0x41/0x80

Introduce percpu_rwsem_destroy function to perform semaphore destruction
in a worker thread.

Bug: 161210518
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I74ac65c2a9962492cd5002d7a019d2aa13a21a8c
---
 include/linux/percpu-rwsem.h  | 13 ++++++++++++-
 kernel/locking/percpu-rwsem.c | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h
index 5fda40f97fe91..bf1668fc9c5ee 100644
--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -13,7 +13,14 @@ struct percpu_rw_semaphore {
 	struct rcu_sync		rss;
 	unsigned int __percpu	*read_count;
 	struct rcuwait		writer;
-	wait_queue_head_t	waiters;
+	/*
+	 * destroy_list_entry is used during object destruction when waiters
+	 * can't be used, therefore reusing the same space.
+	 */
+	union {
+		wait_queue_head_t	waiters;
+		struct list_head	destroy_list_entry;
+	};
 	atomic_t		block;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 	struct lockdep_map	dep_map;
@@ -127,8 +134,12 @@ extern void percpu_up_write(struct percpu_rw_semaphore *);
 extern int __percpu_init_rwsem(struct percpu_rw_semaphore *,
 				const char *, struct lock_class_key *);
 
+/* Can't be called in atomic context. */
 extern void percpu_free_rwsem(struct percpu_rw_semaphore *);
 
+/* Invokes percpu_free_rwsem and frees the semaphore from a worker thread. */
+extern void percpu_rwsem_async_destroy(struct percpu_rw_semaphore *sem);
+
 #define percpu_init_rwsem(sem)					\
 ({								\
 	static struct lock_class_key rwsem_key;			\
diff --git a/kernel/locking/percpu-rwsem.c b/kernel/locking/percpu-rwsem.c
index 70a32a576f3f2..a3d37bf83c604 100644
--- a/kernel/locking/percpu-rwsem.c
+++ b/kernel/locking/percpu-rwsem.c
@@ -7,6 +7,7 @@
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/slab.h>
 #include <linux/errno.h>
 
 int __percpu_init_rwsem(struct percpu_rw_semaphore *sem,
@@ -268,3 +269,34 @@ void percpu_up_write(struct percpu_rw_semaphore *sem)
 	rcu_sync_exit(&sem->rss);
 }
 EXPORT_SYMBOL_GPL(percpu_up_write);
+
+static LIST_HEAD(destroy_list);
+static DEFINE_SPINLOCK(destroy_list_lock);
+
+static void destroy_list_workfn(struct work_struct *work)
+{
+	struct percpu_rw_semaphore *sem, *sem2;
+	LIST_HEAD(to_destroy);
+
+	spin_lock(&destroy_list_lock);
+	list_splice_init(&destroy_list, &to_destroy);
+	spin_unlock(&destroy_list_lock);
+
+	if (list_empty(&to_destroy))
+		return;
+
+	list_for_each_entry_safe(sem, sem2, &to_destroy, destroy_list_entry) {
+		percpu_free_rwsem(sem);
+		kfree(sem);
+	}
+}
+
+static DECLARE_WORK(destroy_list_work, destroy_list_workfn);
+
+void percpu_rwsem_async_destroy(struct percpu_rw_semaphore *sem)
+{
+	spin_lock(&destroy_list_lock);
+	list_add_tail(&sem->destroy_list_entry, &destroy_list);
+	spin_unlock(&destroy_list_lock);
+	schedule_work(&destroy_list_work);
+}
-- 
GitLab


From 729a79f366e5e7376ee64b955958124c7dc28073 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 4 Nov 2021 13:42:56 -0700
Subject: [PATCH 2245/4878] ANDROID: fix mmu_notifier race caused by not taking
 mmap_lock during SPF

When pagefaults are handled speculatively,the pair of
mmu_notifier_invalidate_range_start/mmu_notifier_invalidate_range_end
calls happen without mmap_lock being taken. This enables the following
race:

mmu_notifier_invalidate_range_start
                                       mmap_write_lock
                                       mmu_notifier_register
                                       mmap_write_unlock
mmu_notifier_invalidate_range_end

In this case mmu_notifier_invalidate_range_end will see a new
subscriber not seen at the time of mmu_notifier_invalidate_range_start
and will call ops->invalidate_range_end for that subscriber without
the matching ops->invalidate_range_start, creating imbalance.
Fix this by introducing a new mm->mmu_notifier_lock percpu_rw_semaphore
to synchronize mmu_notifier_invalidate_range_start/
mmu_notifier_invalidate_range_end with mmu_notifier_register when
handling pagefaults speculatively without holding mmap_lock.
percpu_rw_semaphore is used instead of rw_semaphore to prevent cache
line bouncing in the pagefault path.

Fixes: 86ee4a531ea0 ("FROMLIST: x86/mm: add speculative pagefault handling")

Bug: 161210518
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I9c363b2348efcad19818f93b010abf956870ab55
---
 include/linux/mm_types.h     |  4 +++
 include/linux/mmu_notifier.h | 66 ++++++++++++++++++++++++++++++++++--
 kernel/fork.c                |  3 +-
 mm/memory.c                  | 15 ++++++--
 mm/mmu_notifier.c            | 26 +++++++++++++-
 5 files changed, 108 insertions(+), 6 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index c853f612a8153..e7bab1c7a452e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -404,6 +404,7 @@ struct core_state {
 };
 
 struct kioctx_table;
+struct percpu_rw_semaphore;
 struct mm_struct {
 	struct {
 		struct vm_area_struct *mmap;		/* list of VMAs */
@@ -561,6 +562,9 @@ struct mm_struct {
 		struct file __rcu *exe_file;
 #ifdef CONFIG_MMU_NOTIFIER
 		struct mmu_notifier_subscriptions *notifier_subscriptions;
+#ifdef CONFIG_SPECULATIVE_PAGE_FAULT
+		struct percpu_rw_semaphore *mmu_notifier_lock;
+#endif
 #endif
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 		pgtable_t pmd_huge_pte; /* protected by page_table_lock */
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index a7255f582d7c9..de5e37f95d99c 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -6,6 +6,8 @@
 #include <linux/spinlock.h>
 #include <linux/mm_types.h>
 #include <linux/mmap_lock.h>
+#include <linux/percpu-rwsem.h>
+#include <linux/slab.h>
 #include <linux/srcu.h>
 #include <linux/interval_tree.h>
 #include <linux/android_kabi.h>
@@ -502,9 +504,50 @@ static inline void mmu_notifier_invalidate_range(struct mm_struct *mm,
 		__mmu_notifier_invalidate_range(mm, start, end);
 }
 
-static inline void mmu_notifier_subscriptions_init(struct mm_struct *mm)
+#ifdef CONFIG_SPECULATIVE_PAGE_FAULT
+
+static inline bool mmu_notifier_subscriptions_init(struct mm_struct *mm)
+{
+	mm->mmu_notifier_lock = kzalloc(sizeof(struct percpu_rw_semaphore), GFP_KERNEL);
+	if (!mm->mmu_notifier_lock)
+		return false;
+
+	percpu_init_rwsem(mm->mmu_notifier_lock);
+	mm->notifier_subscriptions = NULL;
+
+	return true;
+}
+
+static inline void mmu_notifier_subscriptions_destroy(struct mm_struct *mm)
+{
+	if (mm_has_notifiers(mm))
+		__mmu_notifier_subscriptions_destroy(mm);
+
+	if (in_atomic()) {
+		percpu_rwsem_async_destroy(mm->mmu_notifier_lock);
+	} else {
+		percpu_free_rwsem(mm->mmu_notifier_lock);
+		kfree(mm->mmu_notifier_lock);
+	}
+	mm->mmu_notifier_lock = NULL;
+}
+
+static inline bool mmu_notifier_trylock(struct mm_struct *mm)
+{
+	return percpu_down_read_trylock(mm->mmu_notifier_lock);
+}
+
+static inline void mmu_notifier_unlock(struct mm_struct *mm)
+{
+	percpu_up_read(mm->mmu_notifier_lock);
+}
+
+#else /* CONFIG_SPECULATIVE_PAGE_FAULT */
+
+static inline bool mmu_notifier_subscriptions_init(struct mm_struct *mm)
 {
 	mm->notifier_subscriptions = NULL;
+	return true;
 }
 
 static inline void mmu_notifier_subscriptions_destroy(struct mm_struct *mm)
@@ -513,6 +556,16 @@ static inline void mmu_notifier_subscriptions_destroy(struct mm_struct *mm)
 		__mmu_notifier_subscriptions_destroy(mm);
 }
 
+static inline bool mmu_notifier_trylock(struct mm_struct *mm)
+{
+	return true;
+}
+
+static inline void mmu_notifier_unlock(struct mm_struct *mm)
+{
+}
+
+#endif /* CONFIG_SPECULATIVE_PAGE_FAULT */
 
 static inline void mmu_notifier_range_init(struct mmu_notifier_range *range,
 					   enum mmu_notifier_event event,
@@ -727,14 +780,23 @@ static inline void mmu_notifier_invalidate_range(struct mm_struct *mm,
 {
 }
 
-static inline void mmu_notifier_subscriptions_init(struct mm_struct *mm)
+static inline bool mmu_notifier_subscriptions_init(struct mm_struct *mm)
 {
+	return true;
 }
 
 static inline void mmu_notifier_subscriptions_destroy(struct mm_struct *mm)
 {
 }
 
+static inline void mmu_notifier_lock(struct mm_struct *mm)
+{
+}
+
+static inline void mmu_notifier_unlock(struct mm_struct *mm)
+{
+}
+
 #define mmu_notifier_range_update_to_read_only(r) false
 
 #define ptep_clear_flush_young_notify ptep_clear_flush_young
diff --git a/kernel/fork.c b/kernel/fork.c
index d78ac0426d775..1d3c008702f4b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1070,7 +1070,8 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
 	mm_init_owner(mm, p);
 	mm_init_pasid(mm);
 	RCU_INIT_POINTER(mm->exe_file, NULL);
-	mmu_notifier_subscriptions_init(mm);
+	if (!mmu_notifier_subscriptions_init(mm))
+		goto fail_nopgd;
 	init_tlb_flush_pending(mm);
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	mm->pmd_huge_pte = NULL;
diff --git a/mm/memory.c b/mm/memory.c
index e329e752c78be..f0a4a07692d67 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4696,8 +4696,19 @@ static vm_fault_t handle_pte_fault(struct vm_fault *vmf)
 		goto unlock;
 	}
 	if (vmf->flags & FAULT_FLAG_WRITE) {
-		if (!pte_write(entry))
-			return do_wp_page(vmf);
+		if (!pte_write(entry)) {
+			if (!(vmf->flags & FAULT_FLAG_SPECULATIVE))
+				return do_wp_page(vmf);
+
+			if (!mmu_notifier_trylock(vmf->vma->vm_mm)) {
+				ret = VM_FAULT_RETRY;
+				goto unlock;
+			}
+
+			ret = do_wp_page(vmf);
+			mmu_notifier_unlock(vmf->vma->vm_mm);
+			return ret;
+		}
 		entry = pte_mkdirty(entry);
 	}
 	entry = pte_mkyoung(entry);
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 07f42a7a60657..ce161cd0c8a10 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -621,6 +621,25 @@ void __mmu_notifier_invalidate_range(struct mm_struct *mm,
 	srcu_read_unlock(&srcu, id);
 }
 
+#ifdef CONFIG_SPECULATIVE_PAGE_FAULT
+
+static inline void mmu_notifier_write_lock(struct mm_struct *mm)
+{
+	percpu_down_write(mm->mmu_notifier_lock);
+}
+
+static inline void mmu_notifier_write_unlock(struct mm_struct *mm)
+{
+	percpu_up_write(mm->mmu_notifier_lock);
+}
+
+#else /* CONFIG_SPECULATIVE_PAGE_FAULT */
+
+static inline void mmu_notifier_write_lock(struct mm_struct *mm) {}
+static inline void mmu_notifier_write_unlock(struct mm_struct *mm) {}
+
+#endif /* CONFIG_SPECULATIVE_PAGE_FAULT */
+
 /*
  * Same as mmu_notifier_register but here the caller must hold the mmap_lock in
  * write mode. A NULL mn signals the notifier is being registered for itree
@@ -661,9 +680,13 @@ int __mmu_notifier_register(struct mmu_notifier *subscription,
 		INIT_HLIST_HEAD(&subscriptions->deferred_list);
 	}
 
+	mmu_notifier_write_lock(mm);
+
 	ret = mm_take_all_locks(mm);
-	if (unlikely(ret))
+	if (unlikely(ret)) {
+		mmu_notifier_write_unlock(mm);
 		goto out_clean;
+	}
 
 	/*
 	 * Serialize the update against mmu_notifier_unregister. A
@@ -698,6 +721,7 @@ int __mmu_notifier_register(struct mmu_notifier *subscription,
 		mm->notifier_subscriptions->has_itree = true;
 
 	mm_drop_all_locks(mm);
+	mmu_notifier_write_unlock(mm);
 	BUG_ON(atomic_read(&mm->mm_users) <= 0);
 	return 0;
 
-- 
GitLab


From 32414491834c80ab39519467deb3f8d1e4f5bade Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 16 Dec 2021 15:15:31 +0100
Subject: [PATCH 2246/4878] netfilter: selftest: conntrack_vrf.sh: fix file
 permission

When backporting 33b8aad21ac1 ("selftests: netfilter: add a
vrf+conntrack testcase") to this stable branch, the executable bits were
not properly set on the
tools/testing/selftests/netfilter/conntrack_vrf.sh file due to quilt not
honoring them.

Fix this up manually by setting the correct mode.

Reported-by: "Rantala, Tommi T. (Nokia - FI/Espoo)" <tommi.t.rantala@nokia.com>
Link: https://lore.kernel.org/r/234d7a6a81664610fdf21ac72730f8bd10d3f46f.camel@nokia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/netfilter/conntrack_vrf.sh | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 mode change 100644 => 100755 tools/testing/selftests/netfilter/conntrack_vrf.sh

diff --git a/tools/testing/selftests/netfilter/conntrack_vrf.sh b/tools/testing/selftests/netfilter/conntrack_vrf.sh
old mode 100644
new mode 100755
-- 
GitLab


From 37050f17f2d243f0d6ebe63ed3df84f91abce614 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 16 Dec 2021 16:39:01 +0100
Subject: [PATCH 2247/4878] Linux 5.10.86

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 8de80228df3f6..5c1a33f1ecad9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 85
+SUBLEVEL = 86
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 4f8ba66966167025142751c13df992a94c5aaa4c Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Mon, 13 Dec 2021 23:56:08 -0800
Subject: [PATCH 2248/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 208435530
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I4bdd6c271ab6e76e9ec71adb417ddf3e7a73d46f
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 74e15b91e02e0..64d8157e9d69f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -69,6 +69,7 @@
   bitmap_to_arr32
   __bitmap_weight
   blk_alloc_queue
+  blk_check_plugged
   blk_cleanup_queue
   blk_crypto_init_key
   blkdev_get_by_dev
-- 
GitLab


From 1aced28c6068c2a64d43ee463559de37f88fb852 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sat, 11 Dec 2021 21:27:36 +0800
Subject: [PATCH 2249/4878] f2fs: fix to reserve space for IO align feature

https://bugzilla.kernel.org/show_bug.cgi?id=204137

With below script, we will hit panic during new segment allocation:

DISK=bingo.img
MOUNT_DIR=/mnt/f2fs

dd if=/dev/zero of=$DISK bs=1M count=105
mkfs.f2fe -a 1 -o 19 -t 1 -z 1 -f -q $DISK

mount -t f2fs $DISK $MOUNT_DIR -o "noinline_dentry,flush_merge,noextent_cache,mode=lfs,io_bits=7,fsync_mode=strict"

for (( i = 0; i < 4096; i++ )); do
	name=`head /dev/urandom | tr -dc A-Za-z0-9 | head -c 10`
	mkdir $MOUNT_DIR/$name
done

umount $MOUNT_DIR
rm $DISK

--- Core dump ---
Call Trace:
 allocate_segment_by_default+0x9d/0x100 [f2fs]
 f2fs_allocate_data_block+0x3c0/0x5c0 [f2fs]
 do_write_page+0x62/0x110 [f2fs]
 f2fs_outplace_write_data+0x43/0xc0 [f2fs]
 f2fs_do_write_data_page+0x386/0x560 [f2fs]
 __write_data_page+0x706/0x850 [f2fs]
 f2fs_write_cache_pages+0x267/0x6a0 [f2fs]
 f2fs_write_data_pages+0x19c/0x2e0 [f2fs]
 do_writepages+0x1c/0x70
 __filemap_fdatawrite_range+0xaa/0xe0
 filemap_fdatawrite+0x1f/0x30
 f2fs_sync_dirty_inodes+0x74/0x1f0 [f2fs]
 block_operations+0xdc/0x350 [f2fs]
 f2fs_write_checkpoint+0x104/0x1150 [f2fs]
 f2fs_sync_fs+0xa2/0x120 [f2fs]
 f2fs_balance_fs_bg+0x33c/0x390 [f2fs]
 f2fs_write_node_pages+0x4c/0x1f0 [f2fs]
 do_writepages+0x1c/0x70
 __writeback_single_inode+0x45/0x320
 writeback_sb_inodes+0x273/0x5c0
 wb_writeback+0xff/0x2e0
 wb_workfn+0xa1/0x370
 process_one_work+0x138/0x350
 worker_thread+0x4d/0x3d0
 kthread+0x109/0x140
 ret_from_fork+0x25/0x30

The root cause here is, with IO alignment feature enables, in worst
case, we need F2FS_IO_SIZE() free blocks space for single one 4k write
due to IO alignment feature will fill dummy pages to make IO being
aligned.

So we will easily run out of free segments during non-inline directory's
data writeback, even in process of foreground GC.

In order to fix this issue, I just propose to reserve additional free
space for IO alignment feature to handle worst case of free space usage
ratio during FGGC.

Fixes: 0a595ebaaa6b ("f2fs: support IO alignment for DATA and NODE writes")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/f2fs.h    | 11 +++++++++++
 fs/f2fs/segment.h |  3 ++-
 fs/f2fs/super.c   | 44 ++++++++++++++++++++++++++++++++++++++++++++
 fs/f2fs/sysfs.c   |  4 +++-
 4 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 07ba04b92f49c..8bdffa23bc248 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1025,6 +1025,7 @@ struct f2fs_sm_info {
 	unsigned int segment_count;	/* total # of segments */
 	unsigned int main_segments;	/* # of segments in main area */
 	unsigned int reserved_segments;	/* # of reserved segments */
+	unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
 	unsigned int ovp_segments;	/* # of overprovision segments */
 
 	/* a threshold to reclaim prefree segments */
@@ -2206,6 +2207,11 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
 
 	if (!__allow_reserved_blocks(sbi, inode, true))
 		avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
+
+	if (F2FS_IO_ALIGNED(sbi))
+		avail_user_block_count -= sbi->blocks_per_seg *
+				SM_I(sbi)->additional_reserved_segments;
+
 	if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
 		if (avail_user_block_count > sbi->unusable_block_count)
 			avail_user_block_count -= sbi->unusable_block_count;
@@ -2452,6 +2458,11 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
 
 	if (!__allow_reserved_blocks(sbi, inode, false))
 		valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
+
+	if (F2FS_IO_ALIGNED(sbi))
+		valid_block_count += sbi->blocks_per_seg *
+				SM_I(sbi)->additional_reserved_segments;
+
 	user_block_count = sbi->user_block_count;
 	if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
 		user_block_count -= sbi->unusable_block_count;
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 355b797ab1718..3c01315931f61 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -538,7 +538,8 @@ static inline unsigned int free_segments(struct f2fs_sb_info *sbi)
 
 static inline unsigned int reserved_segments(struct f2fs_sb_info *sbi)
 {
-	return SM_I(sbi)->reserved_segments;
+	return SM_I(sbi)->reserved_segments +
+			SM_I(sbi)->additional_reserved_segments;
 }
 
 static inline unsigned int free_sections(struct f2fs_sb_info *sbi)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 597fcfc865195..13c4cb31a1a12 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -329,6 +329,46 @@ static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
 					   F2FS_OPTION(sbi).s_resgid));
 }
 
+static inline int adjust_reserved_segment(struct f2fs_sb_info *sbi)
+{
+	unsigned int sec_blks = sbi->blocks_per_seg * sbi->segs_per_sec;
+	unsigned int avg_vblocks;
+	unsigned int wanted_reserved_segments;
+	block_t avail_user_block_count;
+
+	if (!F2FS_IO_ALIGNED(sbi))
+		return 0;
+
+	/* average valid block count in section in worst case */
+	avg_vblocks = sec_blks / F2FS_IO_SIZE(sbi);
+
+	/*
+	 * we need enough free space when migrating one section in worst case
+	 */
+	wanted_reserved_segments = (F2FS_IO_SIZE(sbi) / avg_vblocks) *
+						reserved_segments(sbi);
+	wanted_reserved_segments -= reserved_segments(sbi);
+
+	avail_user_block_count = sbi->user_block_count -
+				sbi->current_reserved_blocks -
+				F2FS_OPTION(sbi).root_reserved_blocks;
+
+	if (wanted_reserved_segments * sbi->blocks_per_seg >
+					avail_user_block_count) {
+		f2fs_err(sbi, "IO align feature can't grab additional reserved segment: %u, available segments: %u",
+			wanted_reserved_segments,
+			avail_user_block_count >> sbi->log_blocks_per_seg);
+		return -ENOSPC;
+	}
+
+	SM_I(sbi)->additional_reserved_segments = wanted_reserved_segments;
+
+	f2fs_info(sbi, "IO align feature needs additional reserved segment: %u",
+			 wanted_reserved_segments);
+
+	return 0;
+}
+
 static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
 {
 	if (!F2FS_OPTION(sbi).unusable_cap_perc)
@@ -4186,6 +4226,10 @@ try_onemore:
 		goto free_nm;
 	}
 
+	err = adjust_reserved_segment(sbi);
+	if (err)
+		goto free_nm;
+
 	/* For write statistics */
 	sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
 
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index fd97b3c822249..be6f83d290f8e 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -424,7 +424,9 @@ out:
 	if (a->struct_type == RESERVED_BLOCKS) {
 		spin_lock(&sbi->stat_lock);
 		if (t > (unsigned long)(sbi->user_block_count -
-				F2FS_OPTION(sbi).root_reserved_blocks)) {
+				F2FS_OPTION(sbi).root_reserved_blocks -
+				sbi->blocks_per_seg *
+				SM_I(sbi)->additional_reserved_segments)) {
 			spin_unlock(&sbi->stat_lock);
 			return -EINVAL;
 		}
-- 
GitLab


From 5bb042e2702699da9540dfbfc753b4a3c725ba95 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 16 Dec 2021 17:13:56 +0800
Subject: [PATCH 2250/4878] f2fs: don't drop compressed page cache in
 .{invalidate,release}page

For compressed inode, in .{invalidate,release}page, we will call
f2fs_invalidate_compress_pages() to drop all compressed page cache of
current inode.

But we don't need to drop compressed page cache synchronously in
.invalidatepage, because, all trancation paths of compressed physical
block has been covered with f2fs_invalidate_compress_page().

And also we don't need to drop compressed page cache synchronously
in .releasepage, because, if there is out-of-memory, we can count
on page cache reclaim on sbi->compress_inode.

BTW, this patch may fix the issue reported below:

https://lore.kernel.org/linux-f2fs-devel/20211202092812.197647-1-changfengnan@vivo.com/T/#u

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index bc93d997fd0b5..a544cdd115919 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3538,12 +3538,9 @@ void f2fs_invalidate_page(struct page *page, unsigned int offset,
 
 	clear_page_private_gcing(page);
 
-	if (test_opt(sbi, COMPRESS_CACHE)) {
-		if (f2fs_compressed_file(inode))
-			f2fs_invalidate_compress_pages(sbi, inode->i_ino);
-		if (inode->i_ino == F2FS_COMPRESS_INO(sbi))
-			clear_page_private_data(page);
-	}
+	if (test_opt(sbi, COMPRESS_CACHE) &&
+			inode->i_ino == F2FS_COMPRESS_INO(sbi))
+		clear_page_private_data(page);
 
 	if (page_private_atomic(page))
 		return f2fs_drop_inmem_page(inode, page);
@@ -3563,12 +3560,9 @@ int f2fs_release_page(struct page *page, gfp_t wait)
 		return 0;
 
 	if (test_opt(F2FS_P_SB(page), COMPRESS_CACHE)) {
-		struct f2fs_sb_info *sbi = F2FS_P_SB(page);
 		struct inode *inode = page->mapping->host;
 
-		if (f2fs_compressed_file(inode))
-			f2fs_invalidate_compress_pages(sbi, inode->i_ino);
-		if (inode->i_ino == F2FS_COMPRESS_INO(sbi))
+		if (inode->i_ino == F2FS_COMPRESS_INO(F2FS_I_SB(inode)))
 			clear_page_private_data(page);
 	}
 
-- 
GitLab


From b5019af71a89c642142f3637c03d2fbdc3e4474d Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 16 Dec 2021 09:05:43 -0800
Subject: [PATCH 2251/4878] ANDROID: Fix mmu_notifier_trylock definition for
 !CONFIG_MMU_NOTIFIER config

mmu_notifier_trylock definition for CONFIG_MMU_NOTIFIER=n configuration
has not been modified from the older version. Correct that mistake.

Fixes: 729a79f366e5 ("ANDROID: fix mmu_notifier race caused by not taking mmap_lock during SPF")
Bug: 161210518
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I71b8644bd2864b6ed98a7ff9c15a99fbd4c5a6c5
---
 include/linux/mmu_notifier.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index de5e37f95d99c..6f303131b9761 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -789,8 +789,9 @@ static inline void mmu_notifier_subscriptions_destroy(struct mm_struct *mm)
 {
 }
 
-static inline void mmu_notifier_lock(struct mm_struct *mm)
+static inline bool mmu_notifier_trylock(struct mm_struct *mm)
 {
+	return true;
 }
 
 static inline void mmu_notifier_unlock(struct mm_struct *mm)
-- 
GitLab


From c602863ad28ec86794cb4ab4edea5324f555f181 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 8 Dec 2021 10:27:42 -0800
Subject: [PATCH 2252/4878] nfc: fix segfault in nfc_genl_dump_devices_done

commit fd79a0cbf0b2e34bcc45b13acf962e2032a82203 upstream.

When kmalloc in nfc_genl_dump_devices() fails then
nfc_genl_dump_devices_done() segfaults as below

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014
Workqueue: events netlink_sock_destruct_work
RIP: 0010:klist_iter_exit+0x26/0x80
Call Trace:
<TASK>
class_dev_iter_exit+0x15/0x20
nfc_genl_dump_devices_done+0x3b/0x50
genl_lock_done+0x84/0xd0
netlink_sock_destruct+0x8f/0x270
__sk_destruct+0x64/0x3b0
sk_destruct+0xa8/0xd0
__sk_free+0x2e8/0x3d0
sk_free+0x51/0x90
netlink_sock_destruct_work+0x1c/0x20
process_one_work+0x411/0x710
worker_thread+0x6fd/0xa80

Link: https://syzkaller.appspot.com/bug?id=fc0fa5a53db9edd261d56e74325419faf18bd0df
Reported-by: syzbot+f9f76f4a0766420b4a02@syzkaller.appspotmail.com
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211208182742.340542-1-tadeusz.struk@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/netlink.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 0767404636c14..78acc4e9ac932 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -636,8 +636,10 @@ static int nfc_genl_dump_devices_done(struct netlink_callback *cb)
 {
 	struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0];
 
-	nfc_device_iter_exit(iter);
-	kfree(iter);
+	if (iter) {
+		nfc_device_iter_exit(iter);
+		kfree(iter);
+	}
 
 	return 0;
 }
-- 
GitLab


From 990fd815ec88487f6191bbf5ae06919ced82902d Mon Sep 17 00:00:00 2001
From: Philip Chen <philipchen@chromium.org>
Date: Sat, 30 Oct 2021 10:08:50 -0700
Subject: [PATCH 2253/4878] drm/msm/dsi: set default num_data_lanes

[ Upstream commit cd92cc187c053ab010a1570e2d61d68394a5c725 ]

If "data_lanes" property of the dsi output endpoint is missing in
the DT, num_data_lanes would be 0 by default, which could cause
dsi_host_attach() to fail if dsi->lanes is set to a non-zero value
by the bridge driver.

According to the binding document of msm dsi controller, the
input/output endpoint of the controller is expected to have 4 lanes.
So let's set num_data_lanes to 4 by default.

Signed-off-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211030100812.1.I6cd9af36b723fed277d34539d3b2ba4ca233ad2d@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 96b5dcf8e4540..64454a63bbacf 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1692,6 +1692,8 @@ static int dsi_host_parse_lane_data(struct msm_dsi_host *msm_host,
 	if (!prop) {
 		DRM_DEV_DEBUG(dev,
 			"failed to find data lane mapping, using default\n");
+		/* Set the number of date lanes to 4 by default. */
+		msm_host->num_data_lanes = 4;
 		return 0;
 	}
 
-- 
GitLab


From 9eab949e2b90b10720f24dd22cad7cc63452f14a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 16 Nov 2021 10:20:06 +0000
Subject: [PATCH 2254/4878] KVM: arm64: Save PSTATE early on exit

[ Upstream commit 83bb2c1a01d7127d5adc7d69d7aaa3f7072de2b4 ]

In order to be able to use primitives such as vcpu_mode_is_32bit(),
we need to synchronize the guest PSTATE. However, this is currently
done deep into the bowels of the world-switch code, and we do have
helpers evaluating this much earlier (__vgic_v3_perform_cpuif_access
and handle_aarch32_guest, for example).

Move the saving of the guest pstate into the early fixups, which
cures the first issue. The second one will be addressed separately.

Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kvm/hyp/include/hyp/switch.h    | 6 ++++++
 arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 7 ++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h
index 1f875a8f20c47..8116ae1e636a2 100644
--- a/arch/arm64/kvm/hyp/include/hyp/switch.h
+++ b/arch/arm64/kvm/hyp/include/hyp/switch.h
@@ -406,6 +406,12 @@ static inline bool __hyp_handle_ptrauth(struct kvm_vcpu *vcpu)
  */
 static inline bool fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
+	/*
+	 * Save PSTATE early so that we can evaluate the vcpu mode
+	 * early on.
+	 */
+	vcpu->arch.ctxt.regs.pstate = read_sysreg_el2(SYS_SPSR);
+
 	if (ARM_EXCEPTION_CODE(*exit_code) != ARM_EXCEPTION_IRQ)
 		vcpu->arch.fault.esr_el2 = read_sysreg_el2(SYS_ESR);
 
diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
index cce43bfe158fa..0eacfb9d17b02 100644
--- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
+++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
@@ -54,7 +54,12 @@ static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
 static inline void __sysreg_save_el2_return_state(struct kvm_cpu_context *ctxt)
 {
 	ctxt->regs.pc			= read_sysreg_el2(SYS_ELR);
-	ctxt->regs.pstate		= read_sysreg_el2(SYS_SPSR);
+	/*
+	 * Guest PSTATE gets saved at guest fixup time in all
+	 * cases. We still need to handle the nVHE host side here.
+	 */
+	if (!has_vhe() && ctxt->__hyp_running_vcpu)
+		ctxt->regs.pstate	= read_sysreg_el2(SYS_SPSR);
 
 	if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN))
 		ctxt_sys_reg(ctxt, DISR_EL1) = read_sysreg_s(SYS_VDISR_EL2);
-- 
GitLab


From 27f4ce02b31ad1b7ef627b0b7d0141f645a0df5b Mon Sep 17 00:00:00 2001
From: Ilie Halip <ilie.halip@gmail.com>
Date: Wed, 17 Nov 2021 19:48:21 +0200
Subject: [PATCH 2255/4878] s390/test_unwind: use raw opcode instead of invalid
 instruction

[ Upstream commit 53ae7230918154d1f4281d7aa3aae9650436eadf ]

Building with clang & LLVM_IAS=1 leads to an error:
    arch/s390/lib/test_unwind.c:179:4: error: invalid register pair
                        "       mvcl    %%r1,%%r1\n"
                        ^

The test creates an invalid instruction that would trap at runtime, but the
LLVM inline assembler tries to validate it at compile time too.

Use the raw instruction opcode instead.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Ilie Halip <ilie.halip@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Suggested-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1421
Link: https://lore.kernel.org/r/20211117174822.3632412-1-ilie.halip@gmail.com
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[hca@linux.ibm.com: use illegal opcode, and update comment]
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/lib/test_unwind.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/s390/lib/test_unwind.c b/arch/s390/lib/test_unwind.c
index 6bad84c372dcb..b0b67e6d1f6e2 100644
--- a/arch/s390/lib/test_unwind.c
+++ b/arch/s390/lib/test_unwind.c
@@ -171,10 +171,11 @@ static noinline int unwindme_func4(struct unwindme *u)
 		}
 
 		/*
-		 * trigger specification exception
+		 * Trigger operation exception; use insn notation to bypass
+		 * llvm's integrated assembler sanity checks.
 		 */
 		asm volatile(
-			"	mvcl	%%r1,%%r1\n"
+			"	.insn	e,0x0000\n"	/* illegal opcode */
 			"0:	nopr	%%r7\n"
 			EX_TABLE(0b, 0b)
 			:);
-- 
GitLab


From 999069d8b0407a5423142662ae98fb977ab6f74b Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@ew.tq-group.com>
Date: Wed, 24 Nov 2021 08:31:09 +0100
Subject: [PATCH 2256/4878] Revert "tty: serial: fsl_lpuart: drop earlycon
 entry for i.MX8QXP"

[ Upstream commit 4e9679738a918d8a482ac6a2cb2bb871f094bb84 ]

Revert commit b4b844930f27 ("tty: serial: fsl_lpuart: drop earlycon entry
for i.MX8QXP"), because this breaks earlycon support on imx8qm/imx8qxp.
While it is true that for earlycon there is no difference between
i.MX8QXP and i.MX7ULP (for now at least), there are differences
regarding clocks and fixups for wakeup support. For that reason it was
deemed unacceptable to add the imx7ulp compatible to device tree in
order to get earlycon working again.

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20211124073109.805088-1-alexander.stein@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/fsl_lpuart.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index a70911a227a84..b9f8add284e33 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -2559,6 +2559,7 @@ OF_EARLYCON_DECLARE(lpuart, "fsl,vf610-lpuart", lpuart_early_console_setup);
 OF_EARLYCON_DECLARE(lpuart32, "fsl,ls1021a-lpuart", lpuart32_early_console_setup);
 OF_EARLYCON_DECLARE(lpuart32, "fsl,ls1028a-lpuart", ls1028a_early_console_setup);
 OF_EARLYCON_DECLARE(lpuart32, "fsl,imx7ulp-lpuart", lpuart32_imx_early_console_setup);
+OF_EARLYCON_DECLARE(lpuart32, "fsl,imx8qxp-lpuart", lpuart32_imx_early_console_setup);
 EARLYCON_DECLARE(lpuart, lpuart_early_console_setup);
 EARLYCON_DECLARE(lpuart32, lpuart32_early_console_setup);
 
-- 
GitLab


From 6d22a96d12d736971d5b3e5007956fec5724f27e Mon Sep 17 00:00:00 2001
From: Erik Ekman <erik@kryo.se>
Date: Sun, 28 Nov 2021 13:37:11 +0100
Subject: [PATCH 2257/4878] net/mlx4_en: Update reported link modes for 1/10G

[ Upstream commit 2191b1dfef7d45f44b5008d2148676d9f2c82874 ]

When link modes were initially added in commit 2c762679435dc
("net/mlx4_en: Use PTYS register to query ethtool settings") and
later updated for the new ethtool API in commit 3d8f7cc78d0eb
("net: mlx4: use new ETHTOOL_G/SSETTINGS API") the only 1/10G non-baseT
link modes configured were 1000baseKX, 10000baseKX4 and 10000baseKR.
It looks like these got picked to represent other modes since nothing
better was available.

Switch to using more specific link modes added in commit 5711a98221443
("net: ethtool: add support for 1000BaseX and missing 10G link modes").

Tested with MCX311A-XCAT connected via DAC.
Before:

% sudo ethtool enp3s0
Settings for enp3s0:
	Supported ports: [ FIBRE ]
	Supported link modes:   1000baseKX/Full
	                        10000baseKR/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  1000baseKX/Full
	                        10000baseKR/Full
	Advertised pause frame use: Symmetric
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Speed: 10000Mb/s
	Duplex: Full
	Auto-negotiation: off
	Port: Direct Attach Copper
	PHYAD: 0
	Transceiver: internal
	Supports Wake-on: d
	Wake-on: d
        Current message level: 0x00000014 (20)
                               link ifdown
	Link detected: yes

With this change:

% sudo ethtool enp3s0
	Settings for enp3s0:
	Supported ports: [ FIBRE ]
	Supported link modes:   1000baseX/Full
	                        10000baseCR/Full
 	                        10000baseSR/Full
	Supported pause frame use: Symmetric Receive-only
	Supports auto-negotiation: No
	Supported FEC modes: Not reported
	Advertised link modes:  1000baseX/Full
 	                        10000baseCR/Full
 	                        10000baseSR/Full
	Advertised pause frame use: Symmetric
	Advertised auto-negotiation: No
	Advertised FEC modes: Not reported
	Speed: 10000Mb/s
	Duplex: Full
	Auto-negotiation: off
	Port: Direct Attach Copper
	PHYAD: 0
	Transceiver: internal
	Supports Wake-on: d
	Wake-on: d
        Current message level: 0x00000014 (20)
                               link ifdown
	Link detected: yes

Tested-by: Michael Stapelberg <michael@stapelberg.ch>
Signed-off-by: Erik Ekman <erik@kryo.se>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 3616b77caa0ad..01275c376721c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -663,7 +663,7 @@ void __init mlx4_en_init_ptys2ethtool_map(void)
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000,
 				       ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000,
-				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
+				       ETHTOOL_LINK_MODE_1000baseX_Full_BIT);
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000,
 				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000,
@@ -675,9 +675,9 @@ void __init mlx4_en_init_ptys2ethtool_map(void)
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000,
 				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000,
-				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
+				       ETHTOOL_LINK_MODE_10000baseCR_Full_BIT);
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000,
-				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
+				       ETHTOOL_LINK_MODE_10000baseSR_Full_BIT);
 	MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000,
 				       ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT,
 				       ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
-- 
GitLab


From 701a07fd0274267626d34a088a172a36e967df2c Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Tue, 30 Nov 2021 14:47:31 +0200
Subject: [PATCH 2258/4878] ALSA: hda: Add Intel DG2 PCI ID and HDMI codec vid

[ Upstream commit d85ffff5302b1509efc482e8877c253b0a668b33 ]

Add HD Audio PCI ID and HDMI codec vendor ID for Intel DG2.

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211130124732.696896-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_intel.c  | 12 +++++++++++-
 sound/pci/hda/patch_hdmi.c |  1 +
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 64115a796af06..3cc936f2cbf8d 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -369,7 +369,10 @@ enum {
 					((pci)->device == 0x0c0c) || \
 					((pci)->device == 0x0d0c) || \
 					((pci)->device == 0x160c) || \
-					((pci)->device == 0x490d))
+					((pci)->device == 0x490d) || \
+					((pci)->device == 0x4f90) || \
+					((pci)->device == 0x4f91) || \
+					((pci)->device == 0x4f92))
 
 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
 
@@ -2540,6 +2543,13 @@ static const struct pci_device_id azx_ids[] = {
 	/* DG1 */
 	{ PCI_DEVICE(0x8086, 0x490d),
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	/* DG2 */
+	{ PCI_DEVICE(0x8086, 0x4f90),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x4f91),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+	{ PCI_DEVICE(0x8086, 0x4f92),
+	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
 	/* Alderlake-S */
 	{ PCI_DEVICE(0x8086, 0x7ad0),
 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index c65144715af78..7b91615bcac32 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -4364,6 +4364,7 @@ HDA_CODEC_ENTRY(0x80862814, "DG1 HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862815, "Alderlake HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x8086281c, "Alderlake-P HDMI", patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862816, "Rocketlake HDMI",	patch_i915_tgl_hdmi),
+HDA_CODEC_ENTRY(0x80862819, "DG2 HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x8086281a, "Jasperlake HDMI",	patch_i915_icl_hdmi),
 HDA_CODEC_ENTRY(0x8086281b, "Elkhartlake HDMI",	patch_i915_icl_hdmi),
 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
-- 
GitLab


From cf520ccffd9a3d9de35e900b9ecda2f8c7b5c1ad Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Tue, 30 Nov 2021 14:47:32 +0200
Subject: [PATCH 2259/4878] ALSA: hda/hdmi: fix HDA codec entry table order for
 ADL-P

[ Upstream commit 289047db1143c42c81820352f195a393ff639a52 ]

Keep the HDA_CODEC_ENTRY entries sorted by the codec VID. ADL-P
is the only misplaced Intel HDMI codec.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20211130124732.696896-2-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 7b91615bcac32..fe725f0f09312 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -4362,11 +4362,11 @@ HDA_CODEC_ENTRY(0x8086280f, "Icelake HDMI",	patch_i915_icl_hdmi),
 HDA_CODEC_ENTRY(0x80862812, "Tigerlake HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862814, "DG1 HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862815, "Alderlake HDMI",	patch_i915_tgl_hdmi),
-HDA_CODEC_ENTRY(0x8086281c, "Alderlake-P HDMI", patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862816, "Rocketlake HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862819, "DG2 HDMI",	patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x8086281a, "Jasperlake HDMI",	patch_i915_icl_hdmi),
 HDA_CODEC_ENTRY(0x8086281b, "Elkhartlake HDMI",	patch_i915_icl_hdmi),
+HDA_CODEC_ENTRY(0x8086281c, "Alderlake-P HDMI", patch_i915_tgl_hdmi),
 HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI",	patch_generic_hdmi),
 HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI",	patch_i915_byt_hdmi),
 HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI",	patch_i915_byt_hdmi),
-- 
GitLab


From d6edec8a7b55871db6e2faf7bd39a2e87b020b2b Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Fri, 26 Nov 2021 16:45:59 +0100
Subject: [PATCH 2260/4878] parisc/agp: Annotate parisc agp init functions with
 __init

[ Upstream commit 8d88382b7436551a9ebb78475c546b670790cbf6 ]

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/agp/parisc-agp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index ed3c4c42fc23b..d68d05d5d3838 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -281,7 +281,7 @@ agp_ioc_init(void __iomem *ioc_regs)
         return 0;
 }
 
-static int
+static int __init
 lba_find_capability(int cap)
 {
 	struct _parisc_agp_info *info = &parisc_agp_info;
@@ -366,7 +366,7 @@ fail:
 	return error;
 }
 
-static int
+static int __init
 find_quicksilver(struct device *dev, void *data)
 {
 	struct parisc_device **lba = data;
@@ -378,7 +378,7 @@ find_quicksilver(struct device *dev, void *data)
 	return 0;
 }
 
-static int
+static int __init
 parisc_agp_init(void)
 {
 	extern struct sba_device *sba_list;
-- 
GitLab


From bca6af4325d6f1d5af95b24eed49bd4fb84c8f61 Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megous@megous.com>
Date: Fri, 24 Sep 2021 13:15:27 +0200
Subject: [PATCH 2261/4878] i2c: rk3x: Handle a spurious start completion
 interrupt flag

[ Upstream commit 02fe0fbd8a21e183687925c3a266ae27dda9840f ]

In a typical read transfer, start completion flag is being set after
read finishes (notice ipd bit 4 being set):

trasnfer poll=0
i2c start
rk3x-i2c fdd40000.i2c: IRQ: state 1, ipd: 10
i2c read
rk3x-i2c fdd40000.i2c: IRQ: state 2, ipd: 1b
i2c stop
rk3x-i2c fdd40000.i2c: IRQ: state 4, ipd: 33

This causes I2C transfer being aborted in polled mode from a stop completion
handler:

trasnfer poll=1
i2c start
rk3x-i2c fdd40000.i2c: IRQ: state 1, ipd: 10
i2c read
rk3x-i2c fdd40000.i2c: IRQ: state 2, ipd: 0
rk3x-i2c fdd40000.i2c: IRQ: state 2, ipd: 1b
i2c stop
rk3x-i2c fdd40000.i2c: IRQ: state 4, ipd: 13
i2c stop
rk3x-i2c fdd40000.i2c: unexpected irq in STOP: 0x10

Clearing the START flag after read fixes the issue without any obvious
side effects.

This issue was dicovered on RK3566 when adding support for powering
off the RK817 PMIC.

Signed-off-by: Ondrej Jirman <megous@megous.com>
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-rk3x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rk3x.c b/drivers/i2c/busses/i2c-rk3x.c
index 819ab4ee517e1..02ddb237f69af 100644
--- a/drivers/i2c/busses/i2c-rk3x.c
+++ b/drivers/i2c/busses/i2c-rk3x.c
@@ -423,8 +423,8 @@ static void rk3x_i2c_handle_read(struct rk3x_i2c *i2c, unsigned int ipd)
 	if (!(ipd & REG_INT_MBRF))
 		return;
 
-	/* ack interrupt */
-	i2c_writel(i2c, REG_INT_MBRF, REG_IPD);
+	/* ack interrupt (read also produces a spurious START flag, clear it too) */
+	i2c_writel(i2c, REG_INT_MBRF | REG_INT_START, REG_IPD);
 
 	/* Can only handle a maximum of 32 bytes at a time */
 	if (len > 32)
-- 
GitLab


From dadce61247c6230489527cc5e343b6002d1114c5 Mon Sep 17 00:00:00 2001
From: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Date: Mon, 29 Nov 2021 09:53:27 -0800
Subject: [PATCH 2262/4878] net: netlink: af_netlink: Prevent empty skb by
 adding a check on len.

[ Upstream commit f123cffdd8fe8ea6c7fded4b88516a42798797d0 ]

Adding a check on len parameter to avoid empty skb. This prevents a
division error in netem_enqueue function which is caused when skb->len=0
and skb->data_len=0 in the randomized corruption step as shown below.

skb->data[prandom_u32() % skb_headlen(skb)] ^= 1<<(prandom_u32() % 8);

Crash Report:
[  343.170349] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family
0 port 6081 - 0
[  343.216110] netem: version 1.3
[  343.235841] divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI
[  343.236680] CPU: 3 PID: 4288 Comm: reproducer Not tainted 5.16.0-rc1+
[  343.237569] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.11.0-2.el7 04/01/2014
[  343.238707] RIP: 0010:netem_enqueue+0x1590/0x33c0 [sch_netem]
[  343.239499] Code: 89 85 58 ff ff ff e8 5f 5d e9 d3 48 8b b5 48 ff ff
ff 8b 8d 50 ff ff ff 8b 85 58 ff ff ff 48 8b bd 70 ff ff ff 31 d2 2b 4f
74 <f7> f1 48 b8 00 00 00 00 00 fc ff df 49 01 d5 4c 89 e9 48 c1 e9 03
[  343.241883] RSP: 0018:ffff88800bcd7368 EFLAGS: 00010246
[  343.242589] RAX: 00000000ba7c0a9c RBX: 0000000000000001 RCX:
0000000000000000
[  343.243542] RDX: 0000000000000000 RSI: ffff88800f8edb10 RDI:
ffff88800f8eda40
[  343.244474] RBP: ffff88800bcd7458 R08: 0000000000000000 R09:
ffffffff94fb8445
[  343.245403] R10: ffffffff94fb8336 R11: ffffffff94fb8445 R12:
0000000000000000
[  343.246355] R13: ffff88800a5a7000 R14: ffff88800a5b5800 R15:
0000000000000020
[  343.247291] FS:  00007fdde2bd7700(0000) GS:ffff888109780000(0000)
knlGS:0000000000000000
[  343.248350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  343.249120] CR2: 00000000200000c0 CR3: 000000000ef4c000 CR4:
00000000000006e0
[  343.250076] Call Trace:
[  343.250423]  <TASK>
[  343.250713]  ? memcpy+0x4d/0x60
[  343.251162]  ? netem_init+0xa0/0xa0 [sch_netem]
[  343.251795]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.252443]  netem_enqueue+0xe28/0x33c0 [sch_netem]
[  343.253102]  ? stack_trace_save+0x87/0xb0
[  343.253655]  ? filter_irq_stacks+0xb0/0xb0
[  343.254220]  ? netem_init+0xa0/0xa0 [sch_netem]
[  343.254837]  ? __kasan_check_write+0x14/0x20
[  343.255418]  ? _raw_spin_lock+0x88/0xd6
[  343.255953]  dev_qdisc_enqueue+0x50/0x180
[  343.256508]  __dev_queue_xmit+0x1a7e/0x3090
[  343.257083]  ? netdev_core_pick_tx+0x300/0x300
[  343.257690]  ? check_kcov_mode+0x10/0x40
[  343.258219]  ? _raw_spin_unlock_irqrestore+0x29/0x40
[  343.258899]  ? __kasan_init_slab_obj+0x24/0x30
[  343.259529]  ? setup_object.isra.71+0x23/0x90
[  343.260121]  ? new_slab+0x26e/0x4b0
[  343.260609]  ? kasan_poison+0x3a/0x50
[  343.261118]  ? kasan_unpoison+0x28/0x50
[  343.261637]  ? __kasan_slab_alloc+0x71/0x90
[  343.262214]  ? memcpy+0x4d/0x60
[  343.262674]  ? write_comp_data+0x2f/0x90
[  343.263209]  ? __kasan_check_write+0x14/0x20
[  343.263802]  ? __skb_clone+0x5d6/0x840
[  343.264329]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.264958]  dev_queue_xmit+0x1c/0x20
[  343.265470]  netlink_deliver_tap+0x652/0x9c0
[  343.266067]  netlink_unicast+0x5a0/0x7f0
[  343.266608]  ? netlink_attachskb+0x860/0x860
[  343.267183]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.267820]  ? write_comp_data+0x2f/0x90
[  343.268367]  netlink_sendmsg+0x922/0xe80
[  343.268899]  ? netlink_unicast+0x7f0/0x7f0
[  343.269472]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.270099]  ? write_comp_data+0x2f/0x90
[  343.270644]  ? netlink_unicast+0x7f0/0x7f0
[  343.271210]  sock_sendmsg+0x155/0x190
[  343.271721]  ____sys_sendmsg+0x75f/0x8f0
[  343.272262]  ? kernel_sendmsg+0x60/0x60
[  343.272788]  ? write_comp_data+0x2f/0x90
[  343.273332]  ? write_comp_data+0x2f/0x90
[  343.273869]  ___sys_sendmsg+0x10f/0x190
[  343.274405]  ? sendmsg_copy_msghdr+0x80/0x80
[  343.274984]  ? slab_post_alloc_hook+0x70/0x230
[  343.275597]  ? futex_wait_setup+0x240/0x240
[  343.276175]  ? security_file_alloc+0x3e/0x170
[  343.276779]  ? write_comp_data+0x2f/0x90
[  343.277313]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.277969]  ? write_comp_data+0x2f/0x90
[  343.278515]  ? __fget_files+0x1ad/0x260
[  343.279048]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.279685]  ? write_comp_data+0x2f/0x90
[  343.280234]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.280874]  ? sockfd_lookup_light+0xd1/0x190
[  343.281481]  __sys_sendmsg+0x118/0x200
[  343.281998]  ? __sys_sendmsg_sock+0x40/0x40
[  343.282578]  ? alloc_fd+0x229/0x5e0
[  343.283070]  ? write_comp_data+0x2f/0x90
[  343.283610]  ? write_comp_data+0x2f/0x90
[  343.284135]  ? __sanitizer_cov_trace_pc+0x21/0x60
[  343.284776]  ? ktime_get_coarse_real_ts64+0xb8/0xf0
[  343.285450]  __x64_sys_sendmsg+0x7d/0xc0
[  343.285981]  ? syscall_enter_from_user_mode+0x4d/0x70
[  343.286664]  do_syscall_64+0x3a/0x80
[  343.287158]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  343.287850] RIP: 0033:0x7fdde24cf289
[  343.288344] Code: 01 00 48 81 c4 80 00 00 00 e9 f1 fe ff ff 0f 1f 00
48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b7 db 2c 00 f7 d8 64 89 01 48
[  343.290729] RSP: 002b:00007fdde2bd6d98 EFLAGS: 00000246 ORIG_RAX:
000000000000002e
[  343.291730] RAX: ffffffffffffffda RBX: 0000000000000000 RCX:
00007fdde24cf289
[  343.292673] RDX: 0000000000000000 RSI: 00000000200000c0 RDI:
0000000000000004
[  343.293618] RBP: 00007fdde2bd6e20 R08: 0000000100000001 R09:
0000000000000000
[  343.294557] R10: 0000000100000001 R11: 0000000000000246 R12:
0000000000000000
[  343.295493] R13: 0000000000021000 R14: 0000000000000000 R15:
00007fdde2bd7700
[  343.296432]  </TASK>
[  343.296735] Modules linked in: sch_netem ip6_vti ip_vti ip_gre ipip
sit ip_tunnel geneve macsec macvtap tap ipvlan macvlan 8021q garp mrp
hsr wireguard libchacha20poly1305 chacha_x86_64 poly1305_x86_64
ip6_udp_tunnel udp_tunnel libblake2s blake2s_x86_64 libblake2s_generic
curve25519_x86_64 libcurve25519_generic libchacha xfrm_interface
xfrm6_tunnel tunnel4 veth netdevsim psample batman_adv nlmon dummy team
bonding tls vcan ip6_gre ip6_tunnel tunnel6 gre tun ip6t_rpfilter
ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set
ebtable_nat ebtable_broute ip6table_nat ip6table_mangle
ip6table_security ip6table_raw iptable_nat nf_nat nf_conntrack
nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_security
iptable_raw ebtable_filter ebtables rfkill ip6table_filter ip6_tables
iptable_filter ppdev bochs drm_vram_helper drm_ttm_helper ttm
drm_kms_helper cec parport_pc drm joydev floppy parport sg syscopyarea
sysfillrect sysimgblt i2c_piix4 qemu_fw_cfg fb_sys_fops pcspkr
[  343.297459]  ip_tables xfs virtio_net net_failover failover sd_mod
sr_mod cdrom t10_pi ata_generic pata_acpi ata_piix libata virtio_pci
virtio_pci_legacy_dev serio_raw virtio_pci_modern_dev dm_mirror
dm_region_hash dm_log dm_mod
[  343.311074] Dumping ftrace buffer:
[  343.311532]    (ftrace buffer empty)
[  343.312040] ---[ end trace a2e3db5a6ae05099 ]---
[  343.312691] RIP: 0010:netem_enqueue+0x1590/0x33c0 [sch_netem]
[  343.313481] Code: 89 85 58 ff ff ff e8 5f 5d e9 d3 48 8b b5 48 ff ff
ff 8b 8d 50 ff ff ff 8b 85 58 ff ff ff 48 8b bd 70 ff ff ff 31 d2 2b 4f
74 <f7> f1 48 b8 00 00 00 00 00 fc ff df 49 01 d5 4c 89 e9 48 c1 e9 03
[  343.315893] RSP: 0018:ffff88800bcd7368 EFLAGS: 00010246
[  343.316622] RAX: 00000000ba7c0a9c RBX: 0000000000000001 RCX:
0000000000000000
[  343.317585] RDX: 0000000000000000 RSI: ffff88800f8edb10 RDI:
ffff88800f8eda40
[  343.318549] RBP: ffff88800bcd7458 R08: 0000000000000000 R09:
ffffffff94fb8445
[  343.319503] R10: ffffffff94fb8336 R11: ffffffff94fb8445 R12:
0000000000000000
[  343.320455] R13: ffff88800a5a7000 R14: ffff88800a5b5800 R15:
0000000000000020
[  343.321414] FS:  00007fdde2bd7700(0000) GS:ffff888109780000(0000)
knlGS:0000000000000000
[  343.322489] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  343.323283] CR2: 00000000200000c0 CR3: 000000000ef4c000 CR4:
00000000000006e0
[  343.324264] Kernel panic - not syncing: Fatal exception in interrupt
[  343.333717] Dumping ftrace buffer:
[  343.334175]    (ftrace buffer empty)
[  343.334653] Kernel Offset: 0x13600000 from 0xffffffff81000000
(relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[  343.336027] Rebooting in 86400 seconds..

Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20211129175328.55339-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netlink/af_netlink.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 0886267ea81ef..e55af5c078ac0 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1863,6 +1863,11 @@ static int netlink_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 	if (msg->msg_flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
+	if (len == 0) {
+		pr_warn_once("Zero length message leads to an empty skb\n");
+		return -ENODATA;
+	}
+
 	err = scm_send(sock, msg, &scm, true);
 	if (err < 0)
 		return err;
-- 
GitLab


From dd3cea3425226565c959a1a6b1a1cce2e3394713 Mon Sep 17 00:00:00 2001
From: Mustapha Ghaddar <mghaddar@amd.com>
Date: Mon, 15 Nov 2021 17:56:42 -0500
Subject: [PATCH 2263/4878] drm/amd/display: Fix for the no Audio bug with
 Tiled Displays

[ Upstream commit 5ceaebcda9061c04f439c93961f0819878365c0f ]

[WHY]
It seems like after a series of plug/unplugs we end up in a situation
where tiled display doesnt support Audio.

[HOW]
The issue seems to be related to when we check streams changed after an
HPD, we should be checking the audio_struct as well to see if any of its
values changed.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Mustapha Ghaddar <mustapha.ghaddar@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 59d48cf819ea8..5f4cdb05c4db9 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1698,6 +1698,10 @@ bool dc_is_stream_unchanged(
 	if (old_stream->ignore_msa_timing_param != stream->ignore_msa_timing_param)
 		return false;
 
+	// Only Have Audio left to check whether it is same or not. This is a corner case for Tiled sinks
+	if (old_stream->audio_info.mode_count != stream->audio_info.mode_count)
+		return false;
+
 	return true;
 }
 
-- 
GitLab


From f35f7f04aa80587bfe00c5e679df054918e79a63 Mon Sep 17 00:00:00 2001
From: Perry Yuan <Perry.Yuan@amd.com>
Date: Fri, 19 Nov 2021 04:27:55 -0500
Subject: [PATCH 2264/4878] drm/amd/display: add connector type check for CRC
 source set

[ Upstream commit 2da34b7bb59e1caa9a336e0e20a76b8b6a4abea2 ]

[Why]
IGT bypass test will set crc source as DPRX,and display DM didn`t check
connection type, it run the test on the HDMI connector ,then the kernel
will be crashed because aux->transfer is set null for HDMI connection.
This patch will skip the invalid connection test and fix kernel crash issue.

[How]
Check the connector type while setting the pipe crc source as DPRX or
auto,if the type is not DP or eDP, the crtc crc source will not be set
and report error code to IGT test,IGT will show the this subtest as no
valid crtc/connector combinations found.

116.779714] [IGT] amd_bypass: starting subtest 8bpc-bypass-mode
[ 117.730996] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 117.731001] #PF: supervisor instruction fetch in kernel mode
[ 117.731003] #PF: error_code(0x0010) - not-present page
[ 117.731004] PGD 0 P4D 0
[ 117.731006] Oops: 0010 [#1] SMP NOPTI
[ 117.731009] CPU: 11 PID: 2428 Comm: amd_bypass Tainted: G OE 5.11.0-34-generic #36~20.04.1-Ubuntu
[ 117.731011] Hardware name: AMD CZN/, BIOS AB.FD 09/07/2021
[ 117.731012] RIP: 0010:0x0
[ 117.731015] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[ 117.731016] RSP: 0018:ffffa8d64225bab8 EFLAGS: 00010246
[ 117.731017] RAX: 0000000000000000 RBX: 0000000000000020 RCX: ffffa8d64225bb5e
[ 117.731018] RDX: ffff93151d921880 RSI: ffffa8d64225bac8 RDI: ffff931511a1a9d8
[ 117.731022] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 117.731023] CR2: ffffffffffffffd6 CR3: 000000010d5a4000 CR4: 0000000000750ee0
[ 117.731023] PKRU: 55555554
[ 117.731024] Call Trace:
[ 117.731027] drm_dp_dpcd_access+0x72/0x110 [drm_kms_helper]
[ 117.731036] drm_dp_dpcd_read+0xb7/0xf0 [drm_kms_helper]
[ 117.731040] drm_dp_start_crc+0x38/0xb0 [drm_kms_helper]
[ 117.731047] amdgpu_dm_crtc_set_crc_source+0x1ae/0x3e0 [amdgpu]
[ 117.731149] crtc_crc_open+0x174/0x220 [drm]
[ 117.731162] full_proxy_open+0x168/0x1f0
[ 117.731165] ? open_proxy_open+0x100/0x100

BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1546
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
index e00a30e7d2529..04c20ce6e94df 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
@@ -226,6 +226,14 @@ int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name)
 			ret = -EINVAL;
 			goto cleanup;
 		}
+
+		if ((aconn->base.connector_type != DRM_MODE_CONNECTOR_DisplayPort) &&
+				(aconn->base.connector_type != DRM_MODE_CONNECTOR_eDP)) {
+			DRM_DEBUG_DRIVER("No DP connector available for CRC source\n");
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
 	}
 
 	if (amdgpu_dm_crtc_configure_crc_source(crtc, crtc_state, source)) {
-- 
GitLab


From 6f0d9d3e74dc30293eab77ace28d8bd8cd66213d Mon Sep 17 00:00:00 2001
From: Chen Jun <chenjun102@huawei.com>
Date: Wed, 24 Nov 2021 14:08:01 +0000
Subject: [PATCH 2265/4878] tracing: Fix a kmemleak false positive in
 tracing_map

[ Upstream commit f25667e5980a4333729cac3101e5de1bb851f71a ]

Doing the command:
  echo 'hist:key=common_pid.execname,common_timestamp' > /sys/kernel/debug/tracing/events/xxx/trigger

Triggers many kmemleak reports:

unreferenced object 0xffff0000c7ea4980 (size 128):
  comm "bash", pid 338, jiffies 4294912626 (age 9339.324s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000f3469921>] kmem_cache_alloc_trace+0x4c0/0x6f0
    [<0000000054ca40c3>] hist_trigger_elt_data_alloc+0x140/0x178
    [<00000000633bd154>] tracing_map_init+0x1f8/0x268
    [<000000007e814ab9>] event_hist_trigger_func+0xca0/0x1ad0
    [<00000000bf8520ed>] trigger_process_regex+0xd4/0x128
    [<00000000f549355a>] event_trigger_write+0x7c/0x120
    [<00000000b80f898d>] vfs_write+0xc4/0x380
    [<00000000823e1055>] ksys_write+0x74/0xf8
    [<000000008a9374aa>] __arm64_sys_write+0x24/0x30
    [<0000000087124017>] do_el0_svc+0x88/0x1c0
    [<00000000efd0dcd1>] el0_svc+0x1c/0x28
    [<00000000dbfba9b3>] el0_sync_handler+0x88/0xc0
    [<00000000e7399680>] el0_sync+0x148/0x180
unreferenced object 0xffff0000c7ea4980 (size 128):
  comm "bash", pid 338, jiffies 4294912626 (age 9339.324s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000f3469921>] kmem_cache_alloc_trace+0x4c0/0x6f0
    [<0000000054ca40c3>] hist_trigger_elt_data_alloc+0x140/0x178
    [<00000000633bd154>] tracing_map_init+0x1f8/0x268
    [<000000007e814ab9>] event_hist_trigger_func+0xca0/0x1ad0
    [<00000000bf8520ed>] trigger_process_regex+0xd4/0x128
    [<00000000f549355a>] event_trigger_write+0x7c/0x120
    [<00000000b80f898d>] vfs_write+0xc4/0x380
    [<00000000823e1055>] ksys_write+0x74/0xf8
    [<000000008a9374aa>] __arm64_sys_write+0x24/0x30
    [<0000000087124017>] do_el0_svc+0x88/0x1c0
    [<00000000efd0dcd1>] el0_svc+0x1c/0x28
    [<00000000dbfba9b3>] el0_sync_handler+0x88/0xc0
    [<00000000e7399680>] el0_sync+0x148/0x180

The reason is elts->pages[i] is alloced by get_zeroed_page.
and kmemleak will not scan the area alloced by get_zeroed_page.
The address stored in elts->pages will be regarded as leaked.

That is, the elts->pages[i] will have pointers loaded onto it as well, and
without telling kmemleak about it, those pointers will look like memory
without a reference.

To fix this, call kmemleak_alloc to tell kmemleak to scan elts->pages[i]

Link: https://lkml.kernel.org/r/20211124140801.87121-1-chenjun102@huawei.com

Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/tracing_map.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c
index d63e51dde0d24..51a9d1185033b 100644
--- a/kernel/trace/tracing_map.c
+++ b/kernel/trace/tracing_map.c
@@ -15,6 +15,7 @@
 #include <linux/jhash.h>
 #include <linux/slab.h>
 #include <linux/sort.h>
+#include <linux/kmemleak.h>
 
 #include "tracing_map.h"
 #include "trace.h"
@@ -307,6 +308,7 @@ static void tracing_map_array_free(struct tracing_map_array *a)
 	for (i = 0; i < a->n_pages; i++) {
 		if (!a->pages[i])
 			break;
+		kmemleak_free(a->pages[i]);
 		free_page((unsigned long)a->pages[i]);
 	}
 
@@ -342,6 +344,7 @@ static struct tracing_map_array *tracing_map_array_alloc(unsigned int n_elts,
 		a->pages[i] = (void *)get_zeroed_page(GFP_KERNEL);
 		if (!a->pages[i])
 			goto free;
+		kmemleak_alloc(a->pages[i], PAGE_SIZE, 1, GFP_KERNEL);
 	}
  out:
 	return a;
-- 
GitLab


From ac76adc87a7865497171a139af42615659ee8d65 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 7 Dec 2021 22:09:19 +0000
Subject: [PATCH 2266/4878] KVM: x86: Ignore sparse banks size for an "all
 CPUs", non-sparse IPI req

commit 3244867af8c065e51969f1bffe732d3ebfd9a7d2 upstream.

Do not bail early if there are no bits set in the sparse banks for a
non-sparse, a.k.a. "all CPUs", IPI request.  Per the Hyper-V spec, it is
legal to have a variable length of '0', e.g. VP_SET's BankContents in
this case, if the request can be serviced without the extra info.

  It is possible that for a given invocation of a hypercall that does
  accept variable sized input headers that all the header input fits
  entirely within the fixed size header. In such cases the variable sized
  input header is zero-sized and the corresponding bits in the hypercall
  input should be set to zero.

Bailing early results in KVM failing to send IPIs to all CPUs as expected
by the guest.

Fixes: 214ff83d4473 ("KVM: x86: hyperv: implement PV IPI send hypercalls")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211207220926.718794-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/hyperv.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index bb39f493447cf..328f37e4fd3a7 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1641,11 +1641,13 @@ static u64 kvm_hv_send_ipi(struct kvm_vcpu *current_vcpu, u64 ingpa, u64 outgpa,
 
 		all_cpus = send_ipi_ex.vp_set.format == HV_GENERIC_SET_ALL;
 
+		if (all_cpus)
+			goto check_and_send_ipi;
+
 		if (!sparse_banks_len)
 			goto ret_success;
 
-		if (!all_cpus &&
-		    kvm_read_guest(kvm,
+		if (kvm_read_guest(kvm,
 				   ingpa + offsetof(struct hv_send_ipi_ex,
 						    vp_set.bank_contents),
 				   sparse_banks,
@@ -1653,6 +1655,7 @@ static u64 kvm_hv_send_ipi(struct kvm_vcpu *current_vcpu, u64 ingpa, u64 outgpa,
 			return HV_STATUS_INVALID_HYPERCALL_INPUT;
 	}
 
+check_and_send_ipi:
 	if ((vector < HV_IPI_LOW_VECTOR) || (vector > HV_IPI_HIGH_VECTOR))
 		return HV_STATUS_INVALID_HYPERCALL_INPUT;
 
-- 
GitLab


From 9099f3512678596de7200bf748294b5e757d9a63 Mon Sep 17 00:00:00 2001
From: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Date: Tue, 5 Oct 2021 17:34:50 +0300
Subject: [PATCH 2267/4878] staging: most: dim2: use device release method

commit d445aa402d60014a37a199fae2bba379696b007d upstream.

Commit 723de0f9171e ("staging: most: remove device from interface
structure") moved registration of driver-provided struct device to
the most subsystem. This updated dim2 driver as well.

However, struct device passed to register_device() becomes refcounted,
and must not be explicitly deallocated, but must provide release method
instead. Which is incompatible with managing it via devres.

This patch makes the device structure allocated without devres, adds
device release method, and moves device destruction there.

Fixes: 723de0f9171e ("staging: most: remove device from interface structure")
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20211005143448.8660-2-nikita.yoush@cogentembedded.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/most/dim2/dim2.c | 55 +++++++++++++++++---------------
 1 file changed, 30 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
index 8c2f384233aab..2fd6886f7728c 100644
--- a/drivers/staging/most/dim2/dim2.c
+++ b/drivers/staging/most/dim2/dim2.c
@@ -723,6 +723,23 @@ static int get_dim2_clk_speed(const char *clock_speed, u8 *val)
 	return -EINVAL;
 }
 
+static void dim2_release(struct device *d)
+{
+	struct dim2_hdm *dev = container_of(d, struct dim2_hdm, dev);
+	unsigned long flags;
+
+	kthread_stop(dev->netinfo_task);
+
+	spin_lock_irqsave(&dim_lock, flags);
+	dim_shutdown();
+	spin_unlock_irqrestore(&dim_lock, flags);
+
+	if (dev->disable_platform)
+		dev->disable_platform(to_platform_device(d->parent));
+
+	kfree(dev);
+}
+
 /*
  * dim2_probe - dim2 probe handler
  * @pdev: platform device structure
@@ -743,7 +760,7 @@ static int dim2_probe(struct platform_device *pdev)
 
 	enum { MLB_INT_IDX, AHB0_INT_IDX };
 
-	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
 
@@ -755,25 +772,27 @@ static int dim2_probe(struct platform_device *pdev)
 				      "microchip,clock-speed", &clock_speed);
 	if (ret) {
 		dev_err(&pdev->dev, "missing dt property clock-speed\n");
-		return ret;
+		goto err_free_dev;
 	}
 
 	ret = get_dim2_clk_speed(clock_speed, &dev->clk_speed);
 	if (ret) {
 		dev_err(&pdev->dev, "bad dt property clock-speed\n");
-		return ret;
+		goto err_free_dev;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	dev->io_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(dev->io_base))
-		return PTR_ERR(dev->io_base);
+	if (IS_ERR(dev->io_base)) {
+		ret = PTR_ERR(dev->io_base);
+		goto err_free_dev;
+	}
 
 	of_id = of_match_node(dim2_of_match, pdev->dev.of_node);
 	pdata = of_id->data;
 	ret = pdata && pdata->enable ? pdata->enable(pdev) : 0;
 	if (ret)
-		return ret;
+		goto err_free_dev;
 
 	dev->disable_platform = pdata ? pdata->disable : NULL;
 
@@ -864,24 +883,19 @@ static int dim2_probe(struct platform_device *pdev)
 	dev->most_iface.request_netinfo = request_netinfo;
 	dev->most_iface.driver_dev = &pdev->dev;
 	dev->most_iface.dev = &dev->dev;
-	dev->dev.init_name = "dim2_state";
+	dev->dev.init_name = dev->name;
 	dev->dev.parent = &pdev->dev;
+	dev->dev.release = dim2_release;
 
-	ret = most_register_interface(&dev->most_iface);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register MOST interface\n");
-		goto err_stop_thread;
-	}
-
-	return 0;
+	return most_register_interface(&dev->most_iface);
 
-err_stop_thread:
-	kthread_stop(dev->netinfo_task);
 err_shutdown_dim:
 	dim_shutdown();
 err_disable_platform:
 	if (dev->disable_platform)
 		dev->disable_platform(pdev);
+err_free_dev:
+	kfree(dev);
 
 	return ret;
 }
@@ -895,17 +909,8 @@ err_disable_platform:
 static int dim2_remove(struct platform_device *pdev)
 {
 	struct dim2_hdm *dev = platform_get_drvdata(pdev);
-	unsigned long flags;
 
 	most_deregister_interface(&dev->most_iface);
-	kthread_stop(dev->netinfo_task);
-
-	spin_lock_irqsave(&dim_lock, flags);
-	dim_shutdown();
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	if (dev->disable_platform)
-		dev->disable_platform(pdev);
 
 	return 0;
 }
-- 
GitLab


From 613725436e69fc3ccdf39f827bb274f999288dba Mon Sep 17 00:00:00 2001
From: Bui Quang Minh <minhquangbui99@gmail.com>
Date: Sun, 13 Jun 2021 21:34:39 +0700
Subject: [PATCH 2268/4878] bpf: Fix integer overflow in argument calculation
 for bpf_map_area_alloc

commit 7dd5d437c258bbf4cc15b35229e5208b87b8b4e0 upstream.

In 32-bit architecture, the result of sizeof() is a 32-bit integer so
the expression becomes the multiplication between 2 32-bit integer which
can potentially leads to integer overflow. As a result,
bpf_map_area_alloc() allocates less memory than needed.

Fix this by casting 1 operand to u64.

Fixes: 0d2c4f964050 ("bpf: Eliminate rlimit-based memory accounting for sockmap and sockhash maps")
Fixes: 99c51064fb06 ("devmap: Use bpf_map_area_alloc() for allocating hash buckets")
Fixes: 546ac1ffb70d ("bpf: add devmap, a map for storing net device references")
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210613143440.71975-1-minhquangbui99@gmail.com
Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/devmap.c | 4 ++--
 net/core/sock_map.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index b5be9659ab590..01149821ded91 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -92,7 +92,7 @@ static struct hlist_head *dev_map_create_hash(unsigned int entries,
 	int i;
 	struct hlist_head *hash;
 
-	hash = bpf_map_area_alloc(entries * sizeof(*hash), numa_node);
+	hash = bpf_map_area_alloc((u64) entries * sizeof(*hash), numa_node);
 	if (hash != NULL)
 		for (i = 0; i < entries; i++)
 			INIT_HLIST_HEAD(&hash[i]);
@@ -153,7 +153,7 @@ static int dev_map_init_map(struct bpf_dtab *dtab, union bpf_attr *attr)
 
 		spin_lock_init(&dtab->index_lock);
 	} else {
-		dtab->netdev_map = bpf_map_area_alloc(dtab->map.max_entries *
+		dtab->netdev_map = bpf_map_area_alloc((u64) dtab->map.max_entries *
 						      sizeof(struct bpf_dtab_netdev *),
 						      dtab->map.numa_node);
 		if (!dtab->netdev_map)
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index ddc899e83313a..4ea5bc65848f2 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -52,7 +52,7 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
 	if (err)
 		goto free_stab;
 
-	stab->sks = bpf_map_area_alloc(stab->map.max_entries *
+	stab->sks = bpf_map_area_alloc((u64) stab->map.max_entries *
 				       sizeof(struct sock *),
 				       stab->map.numa_node);
 	if (stab->sks)
-- 
GitLab


From c31470a30c0d8cf406cc71385d8c97dfd1a84f3f Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Fri, 22 Oct 2021 17:03:01 +0200
Subject: [PATCH 2269/4878] fuse: make sure reclaim doesn't write the inode

commit 5c791fe1e2a4f401f819065ea4fc0450849f1818 upstream.

In writeback cache mode mtime/ctime updates are cached, and flushed to the
server using the ->write_inode() callback.

Closing the file will result in a dirty inode being immediately written,
but in other cases the inode can remain dirty after all references are
dropped.  This result in the inode being written back from reclaim, which
can deadlock on a regular allocation while the request is being served.

The usual mechanisms (GFP_NOFS/PF_MEMALLOC*) don't work for FUSE, because
serving a request involves unrelated userspace process(es).

Instead do the same as for dirty pages: make sure the inode is written
before the last reference is gone.

 - fallocate(2)/copy_file_range(2): these call file_update_time() or
   file_modified(), so flush the inode before returning from the call

 - unlink(2), link(2) and rename(2): these call fuse_update_ctime(), so
   flush the ctime directly from this helper

Reported-by: chenguanyou <chenguanyou@xiaomi.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Ed Tsai <ed.tsai@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/dir.c    |  8 ++++++++
 fs/fuse/file.c   | 15 +++++++++++++++
 fs/fuse/fuse_i.h |  1 +
 fs/fuse/inode.c  |  3 +++
 4 files changed, 27 insertions(+)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 2e300176cb889..e7667497b6b77 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -791,11 +791,19 @@ static int fuse_symlink(struct inode *dir, struct dentry *entry,
 	return create_new_entry(fm, &args, dir, entry, S_IFLNK);
 }
 
+void fuse_flush_time_update(struct inode *inode)
+{
+	int err = sync_inode_metadata(inode, 1);
+
+	mapping_set_error(inode->i_mapping, err);
+}
+
 void fuse_update_ctime(struct inode *inode)
 {
 	if (!IS_NOCMTIME(inode)) {
 		inode->i_ctime = current_time(inode);
 		mark_inode_dirty_sync(inode);
+		fuse_flush_time_update(inode);
 	}
 }
 
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index c9606f2d2864d..4dd70b53df81a 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1849,6 +1849,17 @@ int fuse_write_inode(struct inode *inode, struct writeback_control *wbc)
 	struct fuse_file *ff;
 	int err;
 
+	/*
+	 * Inode is always written before the last reference is dropped and
+	 * hence this should not be reached from reclaim.
+	 *
+	 * Writing back the inode from reclaim can deadlock if the request
+	 * processing itself needs an allocation.  Allocations triggering
+	 * reclaim while serving a request can't be prevented, because it can
+	 * involve any number of unrelated userspace processes.
+	 */
+	WARN_ON(wbc->for_reclaim);
+
 	ff = __fuse_write_file_get(fc, fi);
 	err = fuse_flush_times(inode, ff);
 	if (ff)
@@ -3338,6 +3349,8 @@ out:
 	if (lock_inode)
 		inode_unlock(inode);
 
+	fuse_flush_time_update(inode);
+
 	return err;
 }
 
@@ -3447,6 +3460,8 @@ out:
 	inode_unlock(inode_out);
 	file_accessed(file_in);
 
+	fuse_flush_time_update(inode_out);
+
 	return err;
 }
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index ff94da6840176..b159d8b5e8937 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1113,6 +1113,7 @@ int fuse_allow_current_process(struct fuse_conn *fc);
 
 u64 fuse_lock_owner_id(struct fuse_conn *fc, fl_owner_t id);
 
+void fuse_flush_time_update(struct inode *inode);
 void fuse_update_ctime(struct inode *inode);
 
 int fuse_update_attributes(struct inode *inode, struct file *file);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 053c56af3b6f3..5e484676343eb 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -119,6 +119,9 @@ static void fuse_evict_inode(struct inode *inode)
 {
 	struct fuse_inode *fi = get_fuse_inode(inode);
 
+	/* Will write inode on close/munmap and in all other dirtiers */
+	WARN_ON(inode->i_state & I_DIRTY_INODE);
+
 	truncate_inode_pages_final(&inode->i_data);
 	clear_inode(inode);
 	if (inode->i_sb->s_flags & SB_ACTIVE) {
-- 
GitLab


From 6992d8c215c872c208b895fba1e13e07c8c94a83 Mon Sep 17 00:00:00 2001
From: Armin Wolf <W_Armin@gmx.de>
Date: Fri, 12 Nov 2021 18:14:40 +0100
Subject: [PATCH 2270/4878] hwmon: (dell-smm) Fix warning on /proc/i8k creation
 error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit dbd3e6eaf3d813939b28e8a66e29d81cdc836445 upstream.

The removal function is called regardless of whether
/proc/i8k was created successfully or not, the later
causing a WARN() on module removal.
Fix that by only registering the removal function
if /proc/i8k was created successfully.

Tested on a Inspiron 3505.

Fixes: 039ae58503f3 ("hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20211112171440.59006-1-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/dell-smm-hwmon.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 63b74e781c5d9..87f401100466d 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -603,15 +603,18 @@ static const struct proc_ops i8k_proc_ops = {
 	.proc_ioctl	= i8k_ioctl,
 };
 
+static struct proc_dir_entry *entry;
+
 static void __init i8k_init_procfs(void)
 {
 	/* Register the proc entry */
-	proc_create("i8k", 0, NULL, &i8k_proc_ops);
+	entry = proc_create("i8k", 0, NULL, &i8k_proc_ops);
 }
 
 static void __exit i8k_exit_procfs(void)
 {
-	remove_proc_entry("i8k", NULL);
+	if (entry)
+		remove_proc_entry("i8k", NULL);
 }
 
 #else
-- 
GitLab


From 7c26da3be1e9843a15b5318f90db8a564479d2ac Mon Sep 17 00:00:00 2001
From: Antoine Tenart <atenart@kernel.org>
Date: Fri, 3 Dec 2021 11:13:18 +0100
Subject: [PATCH 2271/4878] ethtool: do not perform operations on net devices
 being unregistered

commit dde91ccfa25fd58f64c397d91b81a4b393100ffa upstream.

There is a short period between a net device starts to be unregistered
and when it is actually gone. In that time frame ethtool operations
could still be performed, which might end up in unwanted or undefined
behaviours[1].

Do not allow ethtool operations after a net device starts its
unregistration. This patch targets the netlink part as the ioctl one
isn't affected: the reference to the net device is taken and the
operation is executed within an rtnl lock section and the net device
won't be found after unregister.

[1] For example adding Tx queues after unregister ends up in NULL
    pointer exceptions and UaFs, such as:

      BUG: KASAN: use-after-free in kobject_get+0x14/0x90
      Read of size 1 at addr ffff88801961248c by task ethtool/755

      CPU: 0 PID: 755 Comm: ethtool Not tainted 5.15.0-rc6+ #778
      Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/014
      Call Trace:
       dump_stack_lvl+0x57/0x72
       print_address_description.constprop.0+0x1f/0x140
       kasan_report.cold+0x7f/0x11b
       kobject_get+0x14/0x90
       kobject_add_internal+0x3d1/0x450
       kobject_init_and_add+0xba/0xf0
       netdev_queue_update_kobjects+0xcf/0x200
       netif_set_real_num_tx_queues+0xb4/0x310
       veth_set_channels+0x1c3/0x550
       ethnl_set_channels+0x524/0x610

Fixes: 041b1c5d4a53 ("ethtool: helper functions for netlink interface")
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20211203101318.435618-1-atenart@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ethtool/netlink.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h
index d8efec516d868..979dee6bb88c5 100644
--- a/net/ethtool/netlink.h
+++ b/net/ethtool/netlink.h
@@ -249,6 +249,9 @@ struct ethnl_reply_data {
 
 static inline int ethnl_ops_begin(struct net_device *dev)
 {
+	if (dev && dev->reg_state == NETREG_UNREGISTERING)
+		return -ENODEV;
+
 	if (dev && dev->ethtool_ops->begin)
 		return dev->ethtool_ops->begin(dev);
 	else
-- 
GitLab


From b23f9252a41d33d10792c32a5e54724b1bc9a7fc Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:41 +0200
Subject: [PATCH 2272/4878] perf inject: Fix itrace space allowed for new
 attributes

commit c29d9792607e67ed8a3f6e9db0d96836d885a8c5 upstream.

The space allowed for new attributes can be too small if existing header
information is large. That can happen, for example, if there are very
many CPUs, due to having an event ID per CPU per event being stored in the
header information.

Fix by adding the existing header.data_offset. Also increase the extra
space allowed to 8KiB and align to a 4KiB boundary for neatness.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20211125071457.2066863-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/builtin-inject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 5378a14e38368..8f1a99e2fcd7c 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -752,7 +752,7 @@ static int __cmd_inject(struct perf_inject *inject)
 		inject->tool.ordered_events = true;
 		inject->tool.ordering_requires_timestamps = true;
 		/* Allow space in the header for new attributes */
-		output_data_offset = 4096;
+		output_data_offset = roundup(8192 + session->header.data_offset, 4096);
 		if (inject->strip)
 			strip_init(inject);
 	}
-- 
GitLab


From 731ff78841384877c7b36f78c8aafd60ed70ad3a Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:42 +0200
Subject: [PATCH 2273/4878] perf intel-pt: Fix some PGE (packet generation
 enable/control flow packets) usage

commit 057ae59f5a1d924511beb1b09f395bdb316cfd03 upstream.

Packet generation enable (PGE) refers to whether control flow (COFI)
packets are being produced.

PGE may be false even when branch-tracing is enabled, due to being
out-of-context, or outside a filter address range.  Fix some missing PGE
usage.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Fixes: 839598176b0554 ("perf intel-pt: Allow decoding with branch tracing disabled")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index e6029d4c096fb..a491220027686 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1949,6 +1949,7 @@ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, in
 		return HOP_IGNORE;
 
 	case INTEL_PT_TIP_PGD:
+		decoder->pge = false;
 		if (!decoder->packet.count)
 			return HOP_IGNORE;
 		intel_pt_set_ip(decoder);
@@ -1972,7 +1973,7 @@ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, in
 		intel_pt_set_ip(decoder);
 		if (intel_pt_fup_event(decoder))
 			return HOP_RETURN;
-		if (!decoder->branch_enable)
+		if (!decoder->branch_enable || !decoder->pge)
 			*no_tip = true;
 		if (*no_tip) {
 			decoder->state.type = INTEL_PT_INSTRUCTION;
@@ -2124,7 +2125,7 @@ next:
 				break;
 			}
 			intel_pt_set_last_ip(decoder);
-			if (!decoder->branch_enable) {
+			if (!decoder->branch_enable || !decoder->pge) {
 				decoder->ip = decoder->last_ip;
 				if (intel_pt_fup_event(decoder))
 					return 0;
-- 
GitLab


From 3bb7fd4be8c47a4c562dfeac1ef62ad85c9e3149 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:43 +0200
Subject: [PATCH 2274/4878] perf intel-pt: Fix sync state when a PSB
 (synchronization) packet is found

commit ad106a26aef3a95ac7ca88d033b431661ba346ce upstream.

When syncing, it may be that branch packet generation is not enabled at
that point, in which case there will not immediately be a control-flow
packet, so some packets before a control flow packet turns up, get
ignored.  However, the decoder is in sync as soon as a PSB is found, so
the state should be set accordingly.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index a491220027686..83e54333f03cd 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -2733,7 +2733,7 @@ leap:
 		return err;
 
 	decoder->have_last_ip = true;
-	decoder->pkt_state = INTEL_PT_STATE_NO_IP;
+	decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
 
 	err = intel_pt_walk_psb(decoder);
 	if (err)
-- 
GitLab


From cbed09b44ce0048e12d9981a9f33b86fe42a6fb6 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:44 +0200
Subject: [PATCH 2275/4878] perf intel-pt: Fix intel_pt_fup_event() assumptions
 about setting state type

commit 4c761d805bb2d2ead1b9baaba75496152b394c80 upstream.

intel_pt_fup_event() assumes it can overwrite the state type if there has
been an FUP event, but this is an unnecessary and unexpected constraint on
callers.

Fix by touching only the state type flags that are affected by an FUP
event.

Fixes: a472e65fc490a ("perf intel-pt: Add decoder support for ptwrite and power event packets")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../util/intel-pt-decoder/intel-pt-decoder.c  | 32 ++++++++-----------
 1 file changed, 13 insertions(+), 19 deletions(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 83e54333f03cd..dac06c5f5c30a 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1114,61 +1114,55 @@ out_no_progress:
 
 static bool intel_pt_fup_event(struct intel_pt_decoder *decoder)
 {
+	enum intel_pt_sample_type type = decoder->state.type;
 	bool ret = false;
 
+	decoder->state.type &= ~INTEL_PT_BRANCH;
+
 	if (decoder->set_fup_tx_flags) {
 		decoder->set_fup_tx_flags = false;
 		decoder->tx_flags = decoder->fup_tx_flags;
-		decoder->state.type = INTEL_PT_TRANSACTION;
+		decoder->state.type |= INTEL_PT_TRANSACTION;
 		if (decoder->fup_tx_flags & INTEL_PT_ABORT_TX)
 			decoder->state.type |= INTEL_PT_BRANCH;
-		decoder->state.from_ip = decoder->ip;
-		decoder->state.to_ip = 0;
 		decoder->state.flags = decoder->fup_tx_flags;
-		return true;
+		ret = true;
 	}
 	if (decoder->set_fup_ptw) {
 		decoder->set_fup_ptw = false;
-		decoder->state.type = INTEL_PT_PTW;
+		decoder->state.type |= INTEL_PT_PTW;
 		decoder->state.flags |= INTEL_PT_FUP_IP;
-		decoder->state.from_ip = decoder->ip;
-		decoder->state.to_ip = 0;
 		decoder->state.ptw_payload = decoder->fup_ptw_payload;
-		return true;
+		ret = true;
 	}
 	if (decoder->set_fup_mwait) {
 		decoder->set_fup_mwait = false;
-		decoder->state.type = INTEL_PT_MWAIT_OP;
-		decoder->state.from_ip = decoder->ip;
-		decoder->state.to_ip = 0;
+		decoder->state.type |= INTEL_PT_MWAIT_OP;
 		decoder->state.mwait_payload = decoder->fup_mwait_payload;
 		ret = true;
 	}
 	if (decoder->set_fup_pwre) {
 		decoder->set_fup_pwre = false;
 		decoder->state.type |= INTEL_PT_PWR_ENTRY;
-		decoder->state.type &= ~INTEL_PT_BRANCH;
-		decoder->state.from_ip = decoder->ip;
-		decoder->state.to_ip = 0;
 		decoder->state.pwre_payload = decoder->fup_pwre_payload;
 		ret = true;
 	}
 	if (decoder->set_fup_exstop) {
 		decoder->set_fup_exstop = false;
 		decoder->state.type |= INTEL_PT_EX_STOP;
-		decoder->state.type &= ~INTEL_PT_BRANCH;
 		decoder->state.flags |= INTEL_PT_FUP_IP;
-		decoder->state.from_ip = decoder->ip;
-		decoder->state.to_ip = 0;
 		ret = true;
 	}
 	if (decoder->set_fup_bep) {
 		decoder->set_fup_bep = false;
 		decoder->state.type |= INTEL_PT_BLK_ITEMS;
-		decoder->state.type &= ~INTEL_PT_BRANCH;
+		ret = true;
+	}
+	if (ret) {
 		decoder->state.from_ip = decoder->ip;
 		decoder->state.to_ip = 0;
-		ret = true;
+	} else {
+		decoder->state.type = type;
 	}
 	return ret;
 }
-- 
GitLab


From 02681dd1780a3aeb31381f5f01b9f9b14909eb57 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:45 +0200
Subject: [PATCH 2276/4878] perf intel-pt: Fix state setting when receiving
 overflow (OVF) packet

commit c79ee2b2160909889df67c8801352d3e69d43a1a upstream.

An overflow (OVF packet) is treated as an error because it represents a
loss of trace data, but there is no loss of synchronization, so the packet
state should be INTEL_PT_STATE_IN_SYNC not INTEL_PT_STATE_ERR_RESYNC.

To support that, some additional variables must be reset, and the FUP
packet that may follow OVF is treated as an FUP event.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../util/intel-pt-decoder/intel-pt-decoder.c  | 32 ++++++++++++++++---
 1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index dac06c5f5c30a..27a3c3eb48da1 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1158,6 +1158,20 @@ static bool intel_pt_fup_event(struct intel_pt_decoder *decoder)
 		decoder->state.type |= INTEL_PT_BLK_ITEMS;
 		ret = true;
 	}
+	if (decoder->overflow) {
+		decoder->overflow = false;
+		if (!ret && !decoder->pge) {
+			if (decoder->hop) {
+				decoder->state.type = 0;
+				decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
+			}
+			decoder->pge = true;
+			decoder->state.type |= INTEL_PT_BRANCH | INTEL_PT_TRACE_BEGIN;
+			decoder->state.from_ip = 0;
+			decoder->state.to_ip = decoder->ip;
+			return true;
+		}
+	}
 	if (ret) {
 		decoder->state.from_ip = decoder->ip;
 		decoder->state.to_ip = 0;
@@ -1480,7 +1494,16 @@ static int intel_pt_overflow(struct intel_pt_decoder *decoder)
 	intel_pt_log("ERROR: Buffer overflow\n");
 	intel_pt_clear_tx_flags(decoder);
 	decoder->timestamp_insn_cnt = 0;
-	decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+	decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+	decoder->state.from_ip = decoder->ip;
+	decoder->ip = 0;
+	decoder->pge = false;
+	decoder->set_fup_tx_flags = false;
+	decoder->set_fup_ptw = false;
+	decoder->set_fup_mwait = false;
+	decoder->set_fup_pwre = false;
+	decoder->set_fup_exstop = false;
+	decoder->set_fup_bep = false;
 	decoder->overflow = true;
 	return -EOVERFLOW;
 }
@@ -2083,6 +2106,7 @@ next:
 
 		case INTEL_PT_TIP_PGE: {
 			decoder->pge = true;
+			decoder->overflow = false;
 			intel_pt_mtc_cyc_cnt_pge(decoder);
 			if (decoder->packet.count == 0) {
 				intel_pt_log_at("Skipping zero TIP.PGE",
@@ -2596,10 +2620,10 @@ static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
 	decoder->set_fup_pwre = false;
 	decoder->set_fup_exstop = false;
 	decoder->set_fup_bep = false;
+	decoder->overflow = false;
 
 	if (!decoder->branch_enable) {
 		decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
-		decoder->overflow = false;
 		decoder->state.type = 0; /* Do not have a sample */
 		return 0;
 	}
@@ -2614,7 +2638,6 @@ static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
 		decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
 	else
 		decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
-	decoder->overflow = false;
 
 	decoder->state.from_ip = 0;
 	decoder->state.to_ip = decoder->ip;
@@ -2823,7 +2846,8 @@ const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
 
 	if (err) {
 		decoder->state.err = intel_pt_ext_err(err);
-		decoder->state.from_ip = decoder->ip;
+		if (err != -EOVERFLOW)
+			decoder->state.from_ip = decoder->ip;
 		intel_pt_update_sample_time(decoder);
 		decoder->sample_tot_cyc_cnt = decoder->tot_cyc_cnt;
 	} else {
-- 
GitLab


From 71c795028b31946c7be3392dfa5302011acfa44e Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:46 +0200
Subject: [PATCH 2277/4878] perf intel-pt: Fix next 'err' value, walking trace

commit a32e6c5da599dbf49e60622a4dfb5b9b40ece029 upstream.

Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
but it may not be, if arrived at via a 'goto'. Ensure it is zero.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index 27a3c3eb48da1..aaae2ef36f5da 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -2068,6 +2068,7 @@ static int intel_pt_walk_trace(struct intel_pt_decoder *decoder)
 		if (err)
 			return err;
 next:
+		err = 0;
 		if (decoder->cyc_threshold) {
 			if (decoder->sample_cyc && last_packet_type != INTEL_PT_CYC)
 				decoder->sample_cyc = false;
-- 
GitLab


From 0612aa02c2c8e5c0bb4a257c29ad7aaacf6876ba Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:47 +0200
Subject: [PATCH 2278/4878] perf intel-pt: Fix missing 'instruction' events
 with 'q' option

commit a882cc94971093e146ffa1163b140ad956236754 upstream.

FUP packets contain IP information, which makes them also an 'instruction'
event in 'hop' mode i.e. the itrace 'q' option.  That wasn't happening, so
restructure the logic so that FUP events are added along with appropriate
'instruction' and 'branch' events.

Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
index aaae2ef36f5da..e4c485f92c028 100644
--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -1954,6 +1954,8 @@ static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder);
 /* Hop mode: Ignore TNT, do not walk code, but get ip from FUPs and TIPs */
 static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, int *err)
 {
+	*err = 0;
+
 	/* Leap from PSB to PSB, getting ip from FUP within PSB+ */
 	if (decoder->leap && !decoder->in_psb && decoder->packet.type != INTEL_PT_PSB) {
 		*err = intel_pt_scan_for_psb(decoder);
@@ -1988,18 +1990,21 @@ static int intel_pt_hop_trace(struct intel_pt_decoder *decoder, bool *no_tip, in
 		if (!decoder->packet.count)
 			return HOP_IGNORE;
 		intel_pt_set_ip(decoder);
-		if (intel_pt_fup_event(decoder))
-			return HOP_RETURN;
+		if (decoder->set_fup_mwait || decoder->set_fup_pwre)
+			*no_tip = true;
 		if (!decoder->branch_enable || !decoder->pge)
 			*no_tip = true;
 		if (*no_tip) {
 			decoder->state.type = INTEL_PT_INSTRUCTION;
 			decoder->state.from_ip = decoder->ip;
 			decoder->state.to_ip = 0;
+			intel_pt_fup_event(decoder);
 			return HOP_RETURN;
 		}
+		intel_pt_fup_event(decoder);
+		decoder->state.type |= INTEL_PT_INSTRUCTION | INTEL_PT_BRANCH;
 		*err = intel_pt_walk_fup_tip(decoder);
-		if (!*err)
+		if (!*err && decoder->state.to_ip)
 			decoder->pkt_state = INTEL_PT_STATE_RESAMPLE;
 		return HOP_RETURN;
 
-- 
GitLab


From b6a1cbd187fc7addddcb9c669f7362dec4d54595 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 13 Dec 2021 17:45:48 +0200
Subject: [PATCH 2279/4878] perf intel-pt: Fix error timestamp setting on the
 decoder error path

commit 6665b8e4836caa8023cbc7e53733acd234969c8c upstream.

An error timestamp shows the last known timestamp for the queue, but this
is not updated on the error path. Fix by setting it.

Fixes: f4aa081949e7b6 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
[Adrian: Backport to v5.10]
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/intel-pt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index e5aaf1337be98..5163d2ffea70d 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -2271,6 +2271,7 @@ static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
 				ptq->sync_switch = false;
 				intel_pt_next_tid(pt, ptq);
 			}
+			ptq->timestamp = state->est_timestamp;
 			if (pt->synth_opts.errors) {
 				err = intel_ptq_synth_error(ptq, state);
 				if (err)
-- 
GitLab


From b4b54c7ba149ffa2dcb11b2a84ebf20189ff7f89 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Mon, 13 Dec 2021 17:41:31 +0800
Subject: [PATCH 2280/4878] memblock: free_unused_memmap: use pageblock units
 instead of MAX_ORDER

[ Upstream commit e2a86800d58639b3acde7eaeb9eb393dca066e08 ]

The code that frees unused memory map uses rounds start and end of the
holes that are freed to MAX_ORDER_NR_PAGES to preserve continuity of the
memory map for MAX_ORDER regions.

Lots of core memory management functionality relies on homogeneity of the
memory map within each pageblock which size may differ from MAX_ORDER in
certain configurations.

Although currently, for the architectures that use free_unused_memmap(),
pageblock_order and MAX_ORDER are equivalent, it is cleaner to have common
notation thought mm code.

Replace MAX_ORDER_NR_PAGES with pageblock_nr_pages and update the comments
to make it more clear why the alignment to pageblock boundaries is
required.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/lkml/20210630071211.21011-1-rppt@kernel.org/
[backport upstream modification in mm/memblock.c to arch/arm/mm/init.c]
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/init.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 75f3ab531bdf4..8440b6027598a 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -315,11 +315,11 @@ static void __init free_unused_memmap(void)
 				 ALIGN(prev_end, PAGES_PER_SECTION));
 #else
 		/*
-		 * Align down here since the VM subsystem insists that the
-		 * memmap entries are valid from the bank start aligned to
-		 * MAX_ORDER_NR_PAGES.
+		 * Align down here since many operations in VM subsystem
+		 * presume that there are no holes in the memory map inside
+		 * a pageblock
 		 */
-		start = round_down(start, MAX_ORDER_NR_PAGES);
+		start = round_down(start, pageblock_nr_pages);
 #endif
 		/*
 		 * If we had a previous bank, and there is a space
@@ -329,11 +329,11 @@ static void __init free_unused_memmap(void)
 			free_memmap(prev_end, start);
 
 		/*
-		 * Align up here since the VM subsystem insists that the
-		 * memmap entries are valid from the bank end aligned to
-		 * MAX_ORDER_NR_PAGES.
+		 * Align up here since many operations in VM subsystem
+		 * presume that there are no holes in the memory map inside
+		 * a pageblock
 		 */
-		prev_end = ALIGN(end, MAX_ORDER_NR_PAGES);
+		prev_end = ALIGN(end, pageblock_nr_pages);
 	}
 
 #ifdef CONFIG_SPARSEMEM
-- 
GitLab


From 74551f13c62fed411ea47457a31bbfc160e5d3fb Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Mon, 13 Dec 2021 17:41:32 +0800
Subject: [PATCH 2281/4878] memblock: align freed memory map on pageblock
 boundaries with SPARSEMEM

[ Upstream commit f921f53e089a12a192808ac4319f28727b35dc0f ]

When CONFIG_SPARSEMEM=y the ranges of the memory map that are freed are not
aligned to the pageblock boundaries which breaks assumptions about
homogeneity of the memory map throughout core mm code.

Make sure that the freed memory map is always aligned on pageblock
boundaries regardless of the memory model selection.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/lkml/20210630071211.21011-1-rppt@kernel.org/
[backport upstream modification in mm/memblock.c to arch/arm/mm/init.c]
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/init.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 8440b6027598a..7fd049cbc5b03 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -313,14 +313,14 @@ static void __init free_unused_memmap(void)
 		 */
 		start = min(start,
 				 ALIGN(prev_end, PAGES_PER_SECTION));
-#else
+#endif
 		/*
 		 * Align down here since many operations in VM subsystem
 		 * presume that there are no holes in the memory map inside
 		 * a pageblock
 		 */
 		start = round_down(start, pageblock_nr_pages);
-#endif
+
 		/*
 		 * If we had a previous bank, and there is a space
 		 * between the current bank and the previous, free it.
@@ -337,9 +337,11 @@ static void __init free_unused_memmap(void)
 	}
 
 #ifdef CONFIG_SPARSEMEM
-	if (!IS_ALIGNED(prev_end, PAGES_PER_SECTION))
+	if (!IS_ALIGNED(prev_end, PAGES_PER_SECTION)) {
+		prev_end = ALIGN(end, pageblock_nr_pages);
 		free_memmap(prev_end,
 			    ALIGN(prev_end, PAGES_PER_SECTION));
+	}
 #endif
 }
 
-- 
GitLab


From 6e634c0e7155141c307958a600720bc418137554 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Mon, 13 Dec 2021 17:41:33 +0800
Subject: [PATCH 2282/4878] memblock: ensure there is no overflow in
 memblock_overlaps_region()

[ Upstream commit 023accf5cdc1e504a9b04187ec23ff156fe53d90 ]

There maybe an overflow in memblock_overlaps_region() if it is called with
base and size such that

	base + size > PHYS_ADDR_MAX

Make sure that memblock_overlaps_region() caps the size to prevent such
overflow and remove now duplicated call to memblock_cap_size() from
memblock_is_region_reserved().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/lkml/20210630071211.21011-1-rppt@kernel.org/
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/memblock.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index c337df03b6a17..faa4de579b3db 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -182,6 +182,8 @@ bool __init_memblock memblock_overlaps_region(struct memblock_type *type,
 {
 	unsigned long i;
 
+	memblock_cap_size(base, &size);
+
 	for (i = 0; i < type->cnt; i++)
 		if (memblock_addrs_overlap(base, size, type->regions[i].base,
 					   type->regions[i].size))
@@ -1792,7 +1794,6 @@ bool __init_memblock memblock_is_region_memory(phys_addr_t base, phys_addr_t siz
  */
 bool __init_memblock memblock_is_region_reserved(phys_addr_t base, phys_addr_t size)
 {
-	memblock_cap_size(base, &size);
 	return memblock_overlaps_region(&memblock.reserved, base, size);
 }
 
-- 
GitLab


From 65c578935bcc26ddc04e6757b2c7be95bf235b31 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Mon, 13 Dec 2021 17:41:34 +0800
Subject: [PATCH 2283/4878] arm: extend pfn_valid to take into account freed
 memory map alignment

[ Upstream commit a4d5613c4dc6d413e0733e37db9d116a2a36b9f3 ]

When unused memory map is freed the preserved part of the memory map is
extended to match pageblock boundaries because lots of core mm
functionality relies on homogeneity of the memory map within pageblock
boundaries.

Since pfn_valid() is used to check whether there is a valid memory map
entry for a PFN, make it return true also for PFNs that have memory map
entries even if there is no actual memory populated there.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/lkml/20210630071211.21011-1-rppt@kernel.org/
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/init.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 7fd049cbc5b03..15af4dd524262 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -125,11 +125,22 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max_low,
 int pfn_valid(unsigned long pfn)
 {
 	phys_addr_t addr = __pfn_to_phys(pfn);
+	unsigned long pageblock_size = PAGE_SIZE * pageblock_nr_pages;
 
 	if (__phys_to_pfn(addr) != pfn)
 		return 0;
 
-	return memblock_is_map_memory(addr);
+	/*
+	 * If address less than pageblock_size bytes away from a present
+	 * memory chunk there still will be a memory map entry for it
+	 * because we round freed memory map to the pageblock boundaries.
+	 */
+	if (memblock_overlaps_region(&memblock.memory,
+				     ALIGN_DOWN(addr, pageblock_size),
+				     pageblock_size))
+		return 1;
+
+	return 0;
 }
 EXPORT_SYMBOL(pfn_valid);
 #endif
-- 
GitLab


From 8dd559d53b3b2de960ca1ec1359f5a9b4a12e181 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Mon, 13 Dec 2021 17:41:35 +0800
Subject: [PATCH 2284/4878] arm: ioremap: don't abuse pfn_valid() to check if
 pfn is in RAM

commit 024591f9a6e0164ec23301784d1e6d8f6cacbe59 upstream.
[ Upstream commit 024591f9a6e0164ec23301784d1e6d8f6cacbe59 ]

The semantics of pfn_valid() is to check presence of the memory map for a
PFN and not whether a PFN is in RAM. The memory map may be present for a
hole in the physical memory and if such hole corresponds to an MMIO range,
__arm_ioremap_pfn_caller() will produce a WARN() and fail:

[    2.863406] WARNING: CPU: 0 PID: 1 at arch/arm/mm/ioremap.c:287 __arm_ioremap_pfn_caller+0xf0/0x1dc
[    2.864812] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-09882-ga180bd1d7e16 #1
[    2.865263] Hardware name: Generic DT based system
[    2.865711] Backtrace:
[    2.866063] [<80b07e58>] (dump_backtrace) from [<80b080ac>] (show_stack+0x20/0x24)
[    2.866633]  r7:00000009 r6:0000011f r5:60000153 r4:80ddd1c0
[    2.866922] [<80b0808c>] (show_stack) from [<80b18df0>] (dump_stack_lvl+0x58/0x74)
[    2.867117] [<80b18d98>] (dump_stack_lvl) from [<80b18e20>] (dump_stack+0x14/0x1c)
[    2.867309]  r5:80118cac r4:80dc6774
[    2.867404] [<80b18e0c>] (dump_stack) from [<80122fcc>] (__warn+0xe4/0x150)
[    2.867583] [<80122ee8>] (__warn) from [<80b08850>] (warn_slowpath_fmt+0x88/0xc0)
[    2.867774]  r7:0000011f r6:80dc6774 r5:00000000 r4:814c4000
[    2.867917] [<80b087cc>] (warn_slowpath_fmt) from [<80118cac>] (__arm_ioremap_pfn_caller+0xf0/0x1dc)
[    2.868158]  r9:00000001 r8:9ef00000 r7:80e8b0d4 r6:0009ef00 r5:00000000 r4:00100000
[    2.868346] [<80118bbc>] (__arm_ioremap_pfn_caller) from [<80118df8>] (__arm_ioremap_caller+0x60/0x68)
[    2.868581]  r9:9ef00000 r8:821b6dc0 r7:00100000 r6:00000000 r5:815d1010 r4:80118d98
[    2.868761] [<80118d98>] (__arm_ioremap_caller) from [<80118fcc>] (ioremap+0x28/0x30)
[    2.868958] [<80118fa4>] (ioremap) from [<8062871c>] (__devm_ioremap_resource+0x154/0x1c8)
[    2.869169]  r5:815d1010 r4:814c5d2c
[    2.869263] [<806285c8>] (__devm_ioremap_resource) from [<8062899c>] (devm_ioremap_resource+0x14/0x18)
[    2.869495]  r9:9e9f57a0 r8:814c4000 r7:815d1000 r6:815d1010 r5:8177c078 r4:815cf400
[    2.869676] [<80628988>] (devm_ioremap_resource) from [<8091c6e4>] (fsi_master_acf_probe+0x1a8/0x5d8)
[    2.869909] [<8091c53c>] (fsi_master_acf_probe) from [<80723dbc>] (platform_probe+0x68/0xc8)
[    2.870124]  r9:80e9dadc r8:00000000 r7:815d1010 r6:810c1000 r5:815d1010 r4:00000000
[    2.870306] [<80723d54>] (platform_probe) from [<80721208>] (really_probe+0x1cc/0x470)
[    2.870512]  r7:815d1010 r6:810c1000 r5:00000000 r4:815d1010
[    2.870651] [<8072103c>] (really_probe) from [<807215cc>] (__driver_probe_device+0x120/0x1fc)
[    2.870872]  r7:815d1010 r6:810c1000 r5:810c1000 r4:815d1010
[    2.871013] [<807214ac>] (__driver_probe_device) from [<807216e8>] (driver_probe_device+0x40/0xd8)
[    2.871244]  r9:80e9dadc r8:00000000 r7:815d1010 r6:810c1000 r5:812feaa0 r4:812fe994
[    2.871428] [<807216a8>] (driver_probe_device) from [<80721a58>] (__driver_attach+0xa8/0x1d4)
[    2.871647]  r9:80e9dadc r8:00000000 r7:00000000 r6:810c1000 r5:815d1054 r4:815d1010
[    2.871830] [<807219b0>] (__driver_attach) from [<8071ee8c>] (bus_for_each_dev+0x88/0xc8)
[    2.872040]  r7:00000000 r6:814c4000 r5:807219b0 r4:810c1000
[    2.872194] [<8071ee04>] (bus_for_each_dev) from [<80722208>] (driver_attach+0x28/0x30)
[    2.872418]  r7:810a2aa0 r6:00000000 r5:821b6000 r4:810c1000
[    2.872570] [<807221e0>] (driver_attach) from [<8071f80c>] (bus_add_driver+0x114/0x200)
[    2.872788] [<8071f6f8>] (bus_add_driver) from [<80722ec4>] (driver_register+0x98/0x128)
[    2.873011]  r7:81011d0c r6:814c4000 r5:00000000 r4:810c1000
[    2.873167] [<80722e2c>] (driver_register) from [<80725240>] (__platform_driver_register+0x2c/0x34)
[    2.873408]  r5:814dcb80 r4:80f2a764
[    2.873513] [<80725214>] (__platform_driver_register) from [<80f2a784>] (fsi_master_acf_init+0x20/0x28)
[    2.873766] [<80f2a764>] (fsi_master_acf_init) from [<80f014a8>] (do_one_initcall+0x108/0x290)
[    2.874007] [<80f013a0>] (do_one_initcall) from [<80f01840>] (kernel_init_freeable+0x1ac/0x230)
[    2.874248]  r9:80e9dadc r8:80f3987c r7:80f3985c r6:00000007 r5:814dcb80 r4:80f627a4
[    2.874456] [<80f01694>] (kernel_init_freeable) from [<80b19f44>] (kernel_init+0x20/0x138)
[    2.874691]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80b19f24
[    2.874894]  r4:00000000
[    2.874977] [<80b19f24>] (kernel_init) from [<80100170>] (ret_from_fork+0x14/0x24)
[    2.875231] Exception stack(0x814c5fb0 to 0x814c5ff8)
[    2.875535] 5fa0:                                     00000000 00000000 00000000 00000000
[    2.875849] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    2.876133] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    2.876363]  r5:80b19f24 r4:00000000
[    2.876683] ---[ end trace b2f74b8536829970 ]---
[    2.876911] fsi-master-acf gpio-fsi: ioremap failed for resource [mem 0x9ef00000-0x9effffff]
[    2.877492] fsi-master-acf gpio-fsi: Error -12 mapping coldfire memory
[    2.877689] fsi-master-acf: probe of gpio-fsi failed with error -12

Use memblock_is_map_memory() instead of pfn_valid() to check if a PFN is in
RAM or not.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: a4d5613c4dc6 ("arm: extend pfn_valid to take into account freed memory map alignment")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/lkml/20210630071211.21011-1-rppt@kernel.org/
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/ioremap.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 000e8210000bd..80fb5a4a5c050 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -27,6 +27,7 @@
 #include <linux/vmalloc.h>
 #include <linux/io.h>
 #include <linux/sizes.h>
+#include <linux/memblock.h>
 
 #include <asm/cp15.h>
 #include <asm/cputype.h>
@@ -284,7 +285,8 @@ static void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn,
 	 * Don't allow RAM to be mapped with mismatched attributes - this
 	 * causes problems with ARMv6+
 	 */
-	if (WARN_ON(pfn_valid(pfn) && mtype != MT_MEMORY_RW))
+	if (WARN_ON(memblock_is_map_memory(PFN_PHYS(pfn)) &&
+		    mtype != MT_MEMORY_RW))
 		return NULL;
 
 	area = get_vm_area_caller(size, VM_IOREMAP, caller);
-- 
GitLab


From 272aedd4a3059e6e3b0c4c0f9a8b09e5a9fa2c21 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 17 Dec 2021 10:14:42 +0100
Subject: [PATCH 2285/4878] Linux 5.10.87

Link: https://lore.kernel.org/r/20211215172024.787958154@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 5c1a33f1ecad9..d627f4ae5af56 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 86
+SUBLEVEL = 87
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 6f74f68f01f5a4a479314bb4da95dbabd78d8304 Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Tue, 21 Dec 2021 16:49:04 +0800
Subject: [PATCH 2286/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211546634
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: I02df163ad5244c5e4fb4ff7d47d2e4f0faaba3a4
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 64d8157e9d69f..6c18012780461 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1107,6 +1107,7 @@
   kobject_add
   kobject_create_and_add
   kobject_del
+  kobject_get
   kobject_init
   kobject_init_and_add
   kobject_put
@@ -1153,6 +1154,7 @@
   ktime_get_raw_ts64
   ktime_get_real_seconds
   ktime_get_real_ts64
+  ktime_get_snapshot
   ktime_get_ts64
   ktime_get_with_offset
   kvfree
-- 
GitLab


From 23cd26aab14d813fd73eced18988bae06d5b9334 Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Thu, 25 Nov 2021 00:51:55 +0000
Subject: [PATCH 2287/4878] ANDROID: GKI: Add script to generate symbol
 protection headers

Called By: KERNEL_SRC/kernel/Makefile if CONFIG_MODULE_SIG_PROTECT=y

Generates headers required by gki_modules.c from symbol lists:

gki_module_protected.h: from android/abi_gki_modules_protected
gki_module_exported.h: from android/abi_gki_modules_exports

Bug: 200082547
Test: Treehugger
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Ibcc6e6fe0ad6c7850d48f7c0a283c7f9b06e4456
---
 scripts/gen_gki_modules_headers.sh | 96 ++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100755 scripts/gen_gki_modules_headers.sh

diff --git a/scripts/gen_gki_modules_headers.sh b/scripts/gen_gki_modules_headers.sh
new file mode 100755
index 0000000000000..9fab5185db192
--- /dev/null
+++ b/scripts/gen_gki_modules_headers.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright 2021 Google LLC
+# Author: ramjiyani@google.com (Ramji Jiyani)
+#
+
+#
+# Generates hearder files for GKI modules symbol and export protections
+#
+# Called By: KERNEL_SRC/kernel/Makefile if CONFIG_MODULE_SIG_PROTECT=y
+#
+# gki_module_exported.h: Symbols protected from _export_ by unsigned modules
+# gki_module_protected.h: Symbols protected from _access_ by unsigned modules
+#
+# If valid symbol file doesn't exists then still generates valid C header files for
+# compilation to proceed with no symbols to protect
+#
+
+# Collect arguments from Makefile
+TARGET=$1
+SRCTREE=$2
+
+set -e
+
+#
+# Common Definitions
+#
+
+#
+# generate_header():
+# Args: $1 = Name of the header file
+#       $2 = Input symbol list
+#       $3 = Symbol type (protected/exported)
+#
+generate_header() {
+	local header_file=$1
+	local symbol_file=$2
+	local symbol_type=$3
+
+	echo "  GEN     ${header_file}"
+	if [ -f "${header_file}" ]; then
+		rm -f -- "${header_file}"
+	fi
+
+	# Find Maximum symbol name length if valid symbol_file exist
+	if [  -s "${symbol_file}" ]; then
+		# Skip 1st line (symbol header), Trim white spaces & +1 for null termination
+		local max_name_len=$(awk '
+				{
+					$1=$1;
+					if ( length > L && NR > 1) {
+						L=length
+					}
+				} END { print ++L }' "${symbol_file}")
+	else
+		# Set to 1 to generate valid C header file
+		local max_name_len=1
+	fi
+
+	# Header generation
+	cat > "${header_file}" <<- EOT
+	/*
+	 * DO NOT EDIT
+	 *
+	 * Build generated header file with GKI module symbols/exports
+	 */
+
+	#define NO_OF_$(printf ${symbol_type} | tr [:lower:] [:upper:])_SYMBOLS \\
+	$(printf '\t')(sizeof(gki_${symbol_type}_symbols) / sizeof(gki_${symbol_type}_symbols[0]))
+	#define MAX_$(printf ${symbol_type} | tr [:lower:] [:upper:])_NAME_LEN (${max_name_len})
+
+	static const char gki_${symbol_type}_symbols[][MAX_$(printf ${symbol_type} |
+							tr [:lower:] [:upper:])_NAME_LEN] = {
+	EOT
+
+	# If a valid symbol_file present add symbols in an array except the 1st line
+	if [  -s "${symbol_file}" ]; then
+		sed -e 1d -e 's/^[ \t]*/\t"/;s/[ \t]*$/",/' "${symbol_file}" >> "${header_file}"
+	fi
+
+	# Terminate the file
+	echo "};" >> "${header_file}"
+}
+
+if [ "$(basename "${TARGET}")" = "gki_module_protected.h" ]; then
+	# Sorted list of protected symbols
+	GKI_PROTECTED_SYMBOLS="${SRCTREE}/android/abi_gki_modules_protected"
+
+	generate_header "${TARGET}" "${GKI_PROTECTED_SYMBOLS}" "protected"
+else
+	# Sorted list of exported symbols
+	GKI_EXPORTED_SYMBOLS="${SRCTREE}/android/abi_gki_modules_exports"
+
+	generate_header "${TARGET}" "${GKI_EXPORTED_SYMBOLS}" "exported"
+fi
-- 
GitLab


From 9ab6a242258a9ac17506b74c6ed7332703d536f4 Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Thu, 25 Nov 2021 00:57:24 +0000
Subject: [PATCH 2288/4878] ANDROID: GKI: Add module load time protected symbol
 lookup

Add CONFIG_MODULE_SIG_PROTECT to enable lookup for the protected
symbols and exports from the build time generated list of symbols
and exports.

Module loading behavior will change as follows:
- Allows Android GKI Modules signed using MODULE_SIG_ALL during build.
- Allows other modules to load if they don't violate the access to
  Android GKI protected symbols and do not export the symbols already
  exported by the Android GKI modules. Loading will fail and return
  -EACCES (Permission denied) if symbol access contidions are not met.

Bug: 200082547
Test: Treehugger
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Iedb99d8434db82a9c7f18ffd363d84f4b2316c5b
---
 android/abi_gki_modules_exports   |  1 +
 android/abi_gki_modules_protected |  1 +
 arch/arm64/configs/gki_defconfig  |  2 ++
 arch/x86/configs/gki_defconfig    |  2 ++
 init/Kconfig                      | 14 +++++++++
 kernel/Makefile                   | 17 +++++++++++
 kernel/gki_module.c               | 50 +++++++++++++++++++++++++++++++
 kernel/module-internal.h          | 14 +++++++++
 kernel/module.c                   | 18 ++++++++++-
 9 files changed, 118 insertions(+), 1 deletion(-)
 create mode 100644 android/abi_gki_modules_exports
 create mode 100644 android/abi_gki_modules_protected
 create mode 100644 kernel/gki_module.c

diff --git a/android/abi_gki_modules_exports b/android/abi_gki_modules_exports
new file mode 100644
index 0000000000000..88b5a4b3adce4
--- /dev/null
+++ b/android/abi_gki_modules_exports
@@ -0,0 +1 @@
+[abi_symbol_list]
diff --git a/android/abi_gki_modules_protected b/android/abi_gki_modules_protected
new file mode 100644
index 0000000000000..88b5a4b3adce4
--- /dev/null
+++ b/android/abi_gki_modules_protected
@@ -0,0 +1 @@
+[abi_symbol_list]
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 460f739437ee5..d5c5ed23294a7 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -100,6 +100,8 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_SIG_PROTECT=y
 CONFIG_BLK_CGROUP_IOCOST=y
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index bfb97f17d0975..0e46ce5459ad5 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -76,6 +76,8 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_SIG_PROTECT=y
 CONFIG_BLK_CGROUP_IOCOST=y
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
diff --git a/init/Kconfig b/init/Kconfig
index 4413af4302ea1..b6b07993d90f7 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2200,6 +2200,20 @@ config MODULE_SIG_FORCE
 	  Reject unsigned modules or signed modules for which we don't have a
 	  key.  Without this, such modules will simply taint the kernel.
 
+config MODULE_SIG_PROTECT
+	bool "Android GKI module protection"
+	depends on MODULE_SIG && !MODULE_SIG_FORCE
+	select MODULE_SIG_ALL
+	help
+	  Enables Android GKI symbol and export protection support.
+
+	  This modifies the behavior of the MODULE_SIG_FORCE as follows:
+	  - Allows Android GKI Modules signed using MODULE_SIG_ALL during build.
+	  - Allows other modules to load if they don't violate the access to
+	    Android GKI protected symbols and do not export the symbols already
+	    exported by the Android GKI modules. Loading will fail and return
+	    -EACCES (Permission denied) if symbol access contidions are not met.
+
 config MODULE_SIG_ALL
 	bool "Automatically sign all modules"
 	default y
diff --git a/kernel/Makefile b/kernel/Makefile
index 6ee614db17178..ed1aa304b4a95 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -66,6 +66,7 @@ obj-$(CONFIG_UID16) += uid16.o
 obj-$(CONFIG_MODULES) += module.o
 obj-$(CONFIG_MODULE_SIG) += module_signing.o
 obj-$(CONFIG_MODULE_SIG_FORMAT) += module_signature.o
+obj-$(CONFIG_MODULE_SIG_PROTECT) += gki_module.o
 obj-$(CONFIG_KALLSYMS) += kallsyms.o
 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
 obj-$(CONFIG_CRASH_CORE) += crash_core.o
@@ -155,3 +156,19 @@ $(obj)/kheaders_data.tar.xz: FORCE
 	$(call cmd,genikh)
 
 clean-files := kheaders_data.tar.xz kheaders.md5
+
+#
+# ANDROID: GKI: Generate headerfiles required for gki_module.o
+#
+# Dependencies on generated files need to be listed explicitly
+$(obj)/gki_module.o: $(obj)/gki_module_protected.h $(obj)/gki_module_exported.h
+
+$(obj)/gki_module_protected.h: $(srctree)/android/abi_gki_modules_protected \
+				$(srctree)/scripts/gen_gki_modules_headers.sh
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/gen_gki_modules_headers.sh $@ \
+	"$(srctree)"
+
+$(obj)/gki_module_exported.h: $(srctree)/android/abi_gki_modules_exports \
+				$(srctree)/scripts/gen_gki_modules_headers.sh
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/gen_gki_modules_headers.sh $@ \
+	"$(srctree)"
diff --git a/kernel/gki_module.c b/kernel/gki_module.c
new file mode 100644
index 0000000000000..24651dfc34f84
--- /dev/null
+++ b/kernel/gki_module.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2021 Google LLC
+ * Author: ramjiyani@google.com (Ramji Jiyani)
+ */
+
+#include <linux/bsearch.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/string.h>
+
+/*
+ * Build time generated header files
+ *
+ * gki_module_exported.h -- Symbols protected from _export_ by unsigned modules
+ * gki_module_protected.h -- Symbols protected from _access_ by unsigned modules
+ */
+#include "gki_module_protected.h"
+#include "gki_module_exported.h"
+
+#define MAX_STRCMP_LEN (max(MAX_PROTECTED_NAME_LEN, MAX_EXPORTED_NAME_LEN))
+
+/* bsearch() comparision callback */
+static int cmp_name(const void *sym, const void *protected_sym)
+{
+	return strncmp(sym, protected_sym, MAX_STRCMP_LEN);
+}
+
+/**
+ * gki_is_module_protected_symbol - Is a symbol protected from unsigned module?
+ *
+ * @name:	Symbol being checked against protection from unsigned module
+ */
+bool gki_is_module_protected_symbol(const char *name)
+{
+	return bsearch(name, gki_protected_symbols, NO_OF_PROTECTED_SYMBOLS,
+		       MAX_PROTECTED_NAME_LEN, cmp_name) != NULL;
+}
+
+/**
+ * gki_is_module_exported_symbol - Is a symbol exported from a GKI module?
+ *
+ * @name:	Symbol being checked against exported symbols from GKI modules
+ */
+bool gki_is_module_exported_symbol(const char *name)
+{
+	return bsearch(name, gki_exported_symbols, NO_OF_EXPORTED_SYMBOLS,
+		       MAX_EXPORTED_NAME_LEN, cmp_name) != NULL;
+}
diff --git a/kernel/module-internal.h b/kernel/module-internal.h
index 33783abc377bf..9b040512536e1 100644
--- a/kernel/module-internal.h
+++ b/kernel/module-internal.h
@@ -29,3 +29,17 @@ struct load_info {
 };
 
 extern int mod_verify_sig(const void *mod, struct load_info *info);
+
+#ifdef CONFIG_MODULE_SIG_PROTECT
+extern bool gki_is_module_exported_symbol(const char *name);
+extern bool gki_is_module_protected_symbol(const char *name);
+#else
+static inline bool gki_is_module_exported_symbol(const char *name)
+{
+	return 0;
+}
+static inline bool gki_is_module_protected_symbol(const char *name)
+{
+	return 0;
+}
+#endif /* CONFIG_MODULE_SIG_PROTECT */
diff --git a/kernel/module.c b/kernel/module.c
index ae977497213c6..4085b869f4549 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -275,7 +275,7 @@ static void module_assert_mutex_or_preempt(void)
 #endif
 }
 
-#ifdef CONFIG_MODULE_SIG
+#if defined(CONFIG_MODULE_SIG) && !defined(CONFIG_MODULE_SIG_PROTECT)
 static bool sig_enforce = IS_ENABLED(CONFIG_MODULE_SIG_FORCE);
 module_param(sig_enforce, bool_enable_only, 0644);
 
@@ -2323,6 +2323,13 @@ static int verify_exported_symbols(struct module *mod)
 
 	for (i = 0; i < ARRAY_SIZE(arr); i++) {
 		for (s = arr[i].sym; s < arr[i].sym + arr[i].num; s++) {
+			if (!mod->sig_ok && gki_is_module_exported_symbol(
+						    kernel_symbol_name(s))) {
+				pr_err("%s: exporting protected symbol(%s)\n",
+				       mod->name, kernel_symbol_name(s));
+				return -EACCES;
+			}
+
 			if (find_symbol(kernel_symbol_name(s), &owner, NULL,
 					NULL, true, false)) {
 				pr_err("%s: exports duplicate symbol %s"
@@ -2389,6 +2396,13 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 			break;
 
 		case SHN_UNDEF:
+			if (!mod->sig_ok &&
+			    gki_is_module_protected_symbol(name)) {
+				pr_err("%s: is not an Android GKI signed module. It can not access protected symbol: %s\n",
+				       mod->name, name);
+				return -EACCES;
+			}
+
 			ksym = resolve_symbol_wait(mod, info, name);
 			/* Ok if resolved.  */
 			if (ksym && !IS_ERR(ksym)) {
@@ -4049,6 +4063,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
 			       "kernel\n", mod->name);
 		add_taint_module(mod, TAINT_UNSIGNED_MODULE, LOCKDEP_STILL_OK);
 	}
+#else
+	mod->sig_ok = 0;
 #endif
 
 	/* To avoid stressing percpu allocator, do this once we're unique. */
-- 
GitLab


From 08eecb1a0f6215324cce7fe0aa09442e4bf360da Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Wed, 15 Dec 2021 15:11:49 +0000
Subject: [PATCH 2289/4878] ANDROID: fuse-bpf: Restore a missing const

Also fix erroneous tabs

Signed-off-by: Paul Lawrence <paullawrence@google.com>
Test: compiles
Bug: 202785178
Change-Id: Ifa84c3e46078614aedb88e3fe5795142d586acfc
---
 tools/testing/selftests/filesystems/fuse/fuse_test.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 92718a383075d..dae29c6f6e972 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -195,7 +195,7 @@ out:
 static int bpf_test_real(const char *mount_dir)
 {
 	const char *test_name = "real";
-	const char *test_data =	"Weebles wobble but they don't fall down";
+	const char *test_data = "Weebles wobble but they don't fall down";
 	int result = TEST_FAILURE;
 	int bpf_fd = -1;
 	int src_fd = -1;
@@ -434,7 +434,7 @@ out:
 
 static int bpf_test_redact_readdir(const char *mount_dir)
 {
-	char *names[] = {"f1", "f2", "f3", "f4", "f5", "f6", ".", ".."};
+	const char *names[] = {"f1", "f2", "f3", "f4", "f5", "f6", ".", ".."};
 	int num_shown = (ARRAY_SIZE(names) - 2) / 2 + 2;
 	int result = TEST_FAILURE;
 	int bpf_fd = -1;
@@ -965,7 +965,7 @@ static int bpf_test_symlink(const char *mount_dir)
 {
 	const char *test_name = "real";
 	const char *symlink_name = "partial";
-	const char *test_data =	"Weebles wobble but they don't fall down";
+	const char *test_data = "Weebles wobble but they don't fall down";
 	int result = TEST_FAILURE;
 	int bpf_fd = -1;
 	int src_fd = -1;
-- 
GitLab


From 3c0ff63ab9a4fab3b6b6d4dbb30e6fa04a55006d Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Thu, 16 Dec 2021 18:16:18 +0000
Subject: [PATCH 2290/4878] ANDROID: fuse-bpf: Partial fix for mmap'd files

This will simply pass all mapping operations to the backing file if it
exists. This is sufficient for our needs in Android13, but must be
extended in the future.

Signed-off-by: Paul Lawrence <paullawrence@google.com>
Bug: 202785178
Test: fuse_test passes
Change-Id: I3c51ef62415633ff0db039f25bfed1adf14e1e80
---
 fs/fuse/backing.c                             | 38 +++++++++++++++++++
 fs/fuse/file.c                                |  6 +++
 fs/fuse/fuse_i.h                              |  2 +
 .../selftests/filesystems/fuse/fuse_test.c    | 32 ++++++++++++++++
 4 files changed, 78 insertions(+)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index f30fe8ef5c057..bc7258d788783 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -750,6 +750,44 @@ void *fuse_file_write_iter_finalize(struct fuse_args *fa,
 	return ERR_PTR(fwo->size);
 }
 
+ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	int ret;
+	struct fuse_file *ff = file->private_data;
+	struct inode *fuse_inode = file_inode(file);
+	struct file *backing_file = ff->backing_file;
+	struct inode *backing_inode = file_inode(backing_file);
+
+	if (!backing_file->f_op->mmap)
+		return -ENODEV;
+
+	if (WARN_ON(file != vma->vm_file))
+		return -EIO;
+
+	vma->vm_file = get_file(backing_file);
+
+	ret = call_mmap(vma->vm_file, vma);
+
+	if (ret)
+		fput(backing_file);
+	else
+		fput(file);
+
+	if (file->f_flags & O_NOATIME)
+		return ret;
+
+	if ((!timespec64_equal(&fuse_inode->i_mtime,
+			       &backing_inode->i_mtime) ||
+	     !timespec64_equal(&fuse_inode->i_ctime,
+			       &backing_inode->i_ctime))) {
+		fuse_inode->i_mtime = backing_inode->i_mtime;
+		fuse_inode->i_ctime = backing_inode->i_ctime;
+	}
+	touch_atime(&file->f_path);
+
+	return ret;
+}
+
 int fuse_file_fallocate_initialize(struct fuse_args *fa,
 		struct fuse_fallocate_in *ffi,
 		struct file *file, int mode, loff_t offset, loff_t length)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 7a9e6a2fec013..5a904d2dd49f7 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2474,6 +2474,12 @@ static int fuse_file_mmap(struct file *file, struct vm_area_struct *vma)
 	if (FUSE_IS_DAX(file_inode(file)))
 		return fuse_dax_mmap(file, vma);
 
+#ifdef CONFIG_FUSE_BPF
+	/* TODO - this is simply passthrough, not a proper BPF filter */
+	if (ff->backing_file)
+		return fuse_backing_mmap(file, vma);
+#endif
+
 	if (ff->passthrough.filp)
 		return fuse_passthrough_mmap(file, vma);
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 63b97ff4e9b15..c312c463d8547 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1496,6 +1496,8 @@ int fuse_file_write_iter_backing(struct fuse_args *fa,
 void *fuse_file_write_iter_finalize(struct fuse_args *fa,
 		struct kiocb *iocb, struct iov_iter *from);
 
+ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma);
+
 int fuse_file_fallocate_initialize(struct fuse_args *fa,
 		struct fuse_fallocate_in *ffi,
 		struct file *file, int mode, loff_t offset, loff_t length);
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index dae29c6f6e972..3aefaa017ec4b 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <unistd.h>
 
+#include <sys/mman.h>
 #include <sys/mount.h>
 #include <sys/wait.h>
 
@@ -1297,6 +1298,36 @@ out:
 	return result;
 }
 
+static int mmap_test(const char *mount_dir)
+{
+	const char *file = "file";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+	char *addr = NULL;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(mount_fuse(mount_dir, -1, src_fd, &fuse_dev), 0);
+	TEST(fd = s_open(s_path(s(mount_dir), s(file)),
+			 O_CREAT | O_RDWR | O_CLOEXEC, 0777),
+	     fd != -1);
+	TESTSYSCALL(fallocate(fd, 0, 4096, SEEK_CUR));
+	TEST(addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0),
+	     addr != (void *) -1);
+	memset(addr, 'a', 4096);
+
+	result = TEST_SUCCESS;
+out:
+	munmap(addr, 4096);
+	close(fd);
+	umount(mount_dir);
+	close(fuse_dev);
+	close(src_fd);
+	return result;
+}
+
 static int parse_options(int argc, char *const *argv)
 {
 	signed char c;
@@ -1396,6 +1427,7 @@ int main(int argc, char *argv[])
 		MAKE_TEST(bpf_test_file_rename),
 		MAKE_TEST(bpf_test_alter_errcode_bpf),
 		MAKE_TEST(bpf_test_alter_errcode_userspace),
+		MAKE_TEST(mmap_test),
 	};
 #undef MAKE_TEST
 
-- 
GitLab


From c0312541dacb7b56a03b426302e558bd85fefc58 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Mon, 20 Dec 2021 16:40:24 +0000
Subject: [PATCH 2291/4878] ANDROID: fuse-bpf: Close backing-fd on both paths

Bug: 202785178
Test: fuse_test passes
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: Ie99e196cd67ab6d84a733cd3e027080ad2a4588b
---
 fs/fuse/backing.c                                  |  1 +
 .../testing/selftests/filesystems/fuse/fuse_test.c | 14 +++++---------
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index bc7258d788783..b43e55d98800b 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -959,6 +959,7 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 
 		fc = get_fuse_mount(dir)->fc;
 		backing_file = fuse_fget(fc, febo->backing_fd);
+		__close_fd(fc->task->files, febo->backing_fd);
 		if (!backing_file)
 			return ERR_PTR(-EIO);
 
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 3aefaa017ec4b..eaca579860a22 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -1154,7 +1154,6 @@ static int bpf_test_remove_backing(const char *mount_dir)
 	int pid = -1;
 	int status;
 	char data[256] = {0};
-	int backing_fd = -1;
 
 	/*
 	 * Create folder1/file
@@ -1200,6 +1199,7 @@ static int bpf_test_remove_backing(const char *mount_dir)
 			struct fuse_entry_out feo;
 			struct fuse_entry_bpf_out febo;
 		} __attribute__((packed)) in;
+		int backing_fd = -1;
 
 		TESTFUSEINIT();
 		TESTFUSEIN(FUSE_LOOKUP | FUSE_POSTFILTER, &in);
@@ -1213,20 +1213,16 @@ static int bpf_test_remove_backing(const char *mount_dir)
 			.backing_fd = backing_fd,
 			}));
 
-		while (read(fuse_dev, bytes_in, sizeof(bytes_in)) != -1) {
-			struct fuse_in_header *in_header =
-				(struct fuse_in_header *)bytes_in;
-
-			TESTCOND(in_header->opcode == FUSE_FORGET ||
-				 in_header->opcode == FUSE_BATCH_FORGET);
-		}
+		while (read(fuse_dev, bytes_in, sizeof(bytes_in)) != -1)
+			;
+		TESTEQUAL(close(backing_fd), -1);
+		TESTEQUAL(errno, EBADF);
 	FUSE_DONE
 
 	result = TEST_SUCCESS;
 out:
 	close(fuse_dev);
 	close(fd);
-	close(backing_fd);
 	close(src_fd);
 	close(bpf_fd);
 	umount(mount_dir);
-- 
GitLab


From 305e70db927247956149ea5ade4e304c7c34c5ac Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Tue, 21 Dec 2021 00:13:39 +0000
Subject: [PATCH 2292/4878] ANDROID: fuse-bpf: Close backing fds in
 fuse_dentry_revalidate

Bug: 202785178
Test: fuse_test runs, no leak on Android
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: If3c8dbe680f21c646e98f66140b842869c2c5abf
---
 fs/fuse/dir.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 62f9ac437200e..4b102104304ad 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -237,6 +237,15 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 				 &entry->d_name, &outarg, &bpf_outarg);
 		ret = fuse_simple_request(fm, &args);
 		dput(parent);
+
+		/*
+		 * TODO This doesn't seem sufficient, though we don't plan to
+		 * change the backing file ever, so not sure what is correct
+		 * here yet, especially as we can't return an error to user
+		 */
+		if (bpf_outarg.backing_action == FUSE_ACTION_REPLACE)
+			__close_fd(fm->fc->task->files, bpf_outarg.backing_fd);
+
 		/* Zero nodeid is same as -ENOENT */
 		if (!ret && !outarg.nodeid)
 			ret = -ENOENT;
-- 
GitLab


From 8d0f56c2ed716d5db716893bda5e9250a9a7f2ee Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Tue, 23 Nov 2021 14:59:53 +0100
Subject: [PATCH 2293/4878] KVM: selftests: Make sure kvm_create_max_vcpus test
 won't hit RLIMIT_NOFILE

[ Upstream commit 908fa88e420f30dde6d80f092795a18ec72ca6d3 ]

With the elevated 'KVM_CAP_MAX_VCPUS' value kvm_create_max_vcpus test
may hit RLIMIT_NOFILE limits:

 # ./kvm_create_max_vcpus
 KVM_CAP_MAX_VCPU_ID: 4096
 KVM_CAP_MAX_VCPUS: 1024
 Testing creating 1024 vCPUs, with IDs 0...1023.
 /dev/kvm not available (errno: 24), skipping test

Adjust RLIMIT_NOFILE limits to make sure KVM_CAP_MAX_VCPUS fds can be
opened. Note, raising hard limit ('rlim_max') requires CAP_SYS_RESOURCE
capability which is generally not needed to run kvm selftests (but without
raising the limit the test is doomed to fail anyway).

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211123135953.667434-1-vkuznets@redhat.com>
[Skip the test if the hard limit can be raised. - Paolo]
Reviewed-by: Sean Christopherson <seanjc@google.com>
Tested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/kvm/kvm_create_max_vcpus.c      | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c
index 0299cd81b8ba2..aa3795cd7bd3d 100644
--- a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c
+++ b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c
@@ -12,6 +12,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/resource.h>
 
 #include "test_util.h"
 
@@ -40,10 +41,39 @@ int main(int argc, char *argv[])
 {
 	int kvm_max_vcpu_id = kvm_check_cap(KVM_CAP_MAX_VCPU_ID);
 	int kvm_max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
+	/*
+	 * Number of file descriptors reqired, KVM_CAP_MAX_VCPUS for vCPU fds +
+	 * an arbitrary number for everything else.
+	 */
+	int nr_fds_wanted = kvm_max_vcpus + 100;
+	struct rlimit rl;
 
 	pr_info("KVM_CAP_MAX_VCPU_ID: %d\n", kvm_max_vcpu_id);
 	pr_info("KVM_CAP_MAX_VCPUS: %d\n", kvm_max_vcpus);
 
+	/*
+	 * Check that we're allowed to open nr_fds_wanted file descriptors and
+	 * try raising the limits if needed.
+	 */
+	TEST_ASSERT(!getrlimit(RLIMIT_NOFILE, &rl), "getrlimit() failed!");
+
+	if (rl.rlim_cur < nr_fds_wanted) {
+		rl.rlim_cur = nr_fds_wanted;
+		if (rl.rlim_max < nr_fds_wanted) {
+			int old_rlim_max = rl.rlim_max;
+			rl.rlim_max = nr_fds_wanted;
+
+			int r = setrlimit(RLIMIT_NOFILE, &rl);
+			if (r < 0) {
+				printf("RLIMIT_NOFILE hard limit is too low (%d, wanted %d)\n",
+				       old_rlim_max, nr_fds_wanted);
+				exit(KSFT_SKIP);
+			}
+		} else {
+			TEST_ASSERT(!setrlimit(RLIMIT_NOFILE, &rl), "setrlimit() failed!");
+		}
+	}
+
 	/*
 	 * Upstream KVM prior to 4.8 does not support KVM_CAP_MAX_VCPU_ID.
 	 * Userspace is supposed to use KVM_CAP_MAX_VCPUS as the maximum ID
-- 
GitLab


From 49b7e496928e5c5b8c2917a42d9d532a36028a14 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 22 Nov 2021 18:24:01 -0500
Subject: [PATCH 2294/4878] KVM: downgrade two BUG_ONs to WARN_ON_ONCE

[ Upstream commit 5f25e71e311478f9bb0a8ef49e7d8b95316491d7 ]

This is not an unrecoverable situation.  Users of kvm_read_guest_offset_cached
and kvm_write_guest_offset_cached must expect the read/write to fail, and
therefore it is possible to just return early with an error value.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 virt/kvm/kvm_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 97ac3c6fd4441..4a7d377b3a500 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2590,7 +2590,8 @@ int kvm_write_guest_offset_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
 	int r;
 	gpa_t gpa = ghc->gpa + offset;
 
-	BUG_ON(len + offset > ghc->len);
+	if (WARN_ON_ONCE(len + offset > ghc->len))
+		return -EINVAL;
 
 	if (slots->generation != ghc->generation) {
 		if (__kvm_gfn_to_hva_cache_init(slots, ghc, ghc->gpa, ghc->len))
@@ -2627,7 +2628,8 @@ int kvm_read_guest_offset_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
 	int r;
 	gpa_t gpa = ghc->gpa + offset;
 
-	BUG_ON(len + offset > ghc->len);
+	if (WARN_ON_ONCE(len + offset > ghc->len))
+		return -EINVAL;
 
 	if (slots->generation != ghc->generation) {
 		if (__kvm_gfn_to_hva_cache_init(slots, ghc, ghc->gpa, ghc->len))
-- 
GitLab


From 15640e40e3bbb8714afadab4655e606944f69a9f Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 24 Nov 2021 10:40:24 +0100
Subject: [PATCH 2295/4878] mac80211: fix regression in SSN handling of addba
 tx

commit 73111efacd3c6d9e644acca1d132566932be8af0 upstream.

Some drivers that do their own sequence number allocation (e.g. ath9k) rely
on being able to modify params->ssn on starting tx ampdu sessions.
This was broken by a change that modified it to use sta->tid_seq[tid] instead.

Cc: stable@vger.kernel.org
Fixes: 31d8bb4e07f8 ("mac80211: agg-tx: refactor sending addba")
Reported-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20211124094024.43222-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/agg-tx.c   | 4 ++--
 net/mac80211/sta_info.h | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index b37c8a983d88d..390e82ce174ff 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -480,8 +480,7 @@ static void ieee80211_send_addba_with_timeout(struct sta_info *sta,
 
 	/* send AddBA request */
 	ieee80211_send_addba_request(sdata, sta->sta.addr, tid,
-				     tid_tx->dialog_token,
-				     sta->tid_seq[tid] >> 4,
+				     tid_tx->dialog_token, tid_tx->ssn,
 				     buf_size, tid_tx->timeout);
 
 	WARN_ON(test_and_set_bit(HT_AGG_STATE_SENT_ADDBA, &tid_tx->state));
@@ -523,6 +522,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
 
 	params.ssn = sta->tid_seq[tid] >> 4;
 	ret = drv_ampdu_action(local, sdata, &params);
+	tid_tx->ssn = params.ssn;
 	if (ret == IEEE80211_AMPDU_TX_START_DELAY_ADDBA) {
 		return;
 	} else if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) {
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 355e006432ccc..b9e5f8e8f29cc 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -190,6 +190,7 @@ struct tid_ampdu_tx {
 	u8 stop_initiator;
 	bool tx_stop;
 	u16 buf_size;
+	u16 ssn;
 
 	u16 failed_bar_ssn;
 	bool bar_pending;
-- 
GitLab


From 29bb131dbbb5c0447b06d9d015cab1bd480ab274 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 29 Nov 2021 15:32:39 +0200
Subject: [PATCH 2296/4878] mac80211: mark TX-during-stop for TX in in_reconfig

commit db7205af049d230e7e0abf61c1e74c1aab40f390 upstream.

Mark TXQs as having seen transmit while they were stopped if
we bail out of drv_wake_tx_queue() due to reconfig, so that
the queue wake after this will make them catch up. This is
particularly necessary for when TXQs are used for management
packets since those TXQs won't see a lot of traffic that'd
make them catch up later.

Cc: stable@vger.kernel.org
Fixes: 4856bfd23098 ("mac80211: do not call driver wake_tx_queue op during reconfig")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211129152938.4573a221c0e1.I0d1d5daea3089be3fc0dccc92991b0f8c5677f0c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/driver-ops.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index bcdfd19a596be..a172f69c71123 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1201,8 +1201,11 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif);
 
-	if (local->in_reconfig)
+	/* In reconfig don't transmit now, but mark for waking later */
+	if (local->in_reconfig) {
+		set_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txq->flags);
 		return;
+	}
 
 	if (!check_sdata_in_driver(sdata))
 		return;
-- 
GitLab


From 0bb50470f1e09169887fe8509ca38e51e432f308 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 2 Dec 2021 13:45:33 +0100
Subject: [PATCH 2297/4878] mac80211: send ADDBA requests using the tid/queue
 of the aggregation session

commit 1fe98f5690c4219d419ea9cc190f94b3401cf324 upstream.

Sending them out on a different queue can cause a race condition where a
number of packets in the queue may be discarded by the receiver, because
the ADDBA request is sent too early.
This affects any driver with software A-MPDU setup which does not allocate
packet seqno in hardware on tx, regardless of whether iTXQ is used or not.
The only driver I've seen that explicitly deals with this issue internally
is mwl8k.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20211202124533.80388-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/agg-tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 390e82ce174ff..407765ad9cc92 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -106,7 +106,7 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 	mgmt->u.action.u.addba_req.start_seq_num =
 					cpu_to_le16(start_seq_num << 4);
 
-	ieee80211_tx_skb(sdata, skb);
+	ieee80211_tx_skb_tid(sdata, skb, tid);
 }
 
 void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn)
-- 
GitLab


From 7fd214fc7f2ee3a89f91e717e3cfad55f5a27045 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Sat, 11 Dec 2021 20:10:24 +0100
Subject: [PATCH 2298/4878] mac80211: validate extended element ID is present

commit 768c0b19b50665e337c96858aa2b7928d6dcf756 upstream.

Before attempting to parse an extended element, verify that
the extended element ID is present.

Fixes: 41cbb0f5a295 ("mac80211: add support for HE")
Reported-by: syzbot+59bdff68edce82e393b6@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211211201023.f30a1b128c07.I5cacc176da94ba316877c6e10fe3ceec8b4dbd7d@changeid
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/util.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index fbf56a203c0e8..a1f129292ad88 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -950,7 +950,12 @@ static void ieee80211_parse_extension_element(u32 *crc,
 					      struct ieee802_11_elems *elems)
 {
 	const void *data = elem->data + 1;
-	u8 len = elem->datalen - 1;
+	u8 len;
+
+	if (!elem->datalen)
+		return;
+
+	len = elem->datalen - 1;
 
 	switch (elem->data[0]) {
 	case WLAN_EID_EXT_HE_MU_EDCA:
-- 
GitLab


From f0f484714f35d24ffa0ecb4afe3df1c5b225411d Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Thu, 9 Dec 2021 12:04:56 +0000
Subject: [PATCH 2299/4878] firmware: arm_scpi: Fix string overflow in SCPI
 genpd driver

commit 865ed67ab955428b9aa771d8b4f1e4fb7fd08945 upstream.

Without the bound checks for scpi_pd->name, it could result in the buffer
overflow when copying the SCPI device name from the corresponding device
tree node as the name string is set at maximum size of 30.

Let us fix it by using devm_kasprintf so that the string buffer is
allocated dynamically.

Fixes: 8bec4337ad40 ("firmware: scpi: add device power domain support using genpd")
Reported-by: Pedro Batista <pedbap.g@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: stable@vger.kernel.org
Cc: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20211209120456.696879-1-sudeep.holla@arm.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/scpi_pm_domain.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/scpi_pm_domain.c b/drivers/firmware/scpi_pm_domain.c
index 51201600d789b..800673910b511 100644
--- a/drivers/firmware/scpi_pm_domain.c
+++ b/drivers/firmware/scpi_pm_domain.c
@@ -16,7 +16,6 @@ struct scpi_pm_domain {
 	struct generic_pm_domain genpd;
 	struct scpi_ops *ops;
 	u32 domain;
-	char name[30];
 };
 
 /*
@@ -110,8 +109,13 @@ static int scpi_pm_domain_probe(struct platform_device *pdev)
 
 		scpi_pd->domain = i;
 		scpi_pd->ops = scpi_ops;
-		sprintf(scpi_pd->name, "%pOFn.%d", np, i);
-		scpi_pd->genpd.name = scpi_pd->name;
+		scpi_pd->genpd.name = devm_kasprintf(dev, GFP_KERNEL,
+						     "%pOFn.%d", np, i);
+		if (!scpi_pd->genpd.name) {
+			dev_err(dev, "Failed to allocate genpd name:%pOFn.%d\n",
+				np, i);
+			continue;
+		}
 		scpi_pd->genpd.power_off = scpi_pd_power_off;
 		scpi_pd->genpd.power_on = scpi_pd_power_on;
 
-- 
GitLab


From e2aad0b5f2cbf71a31d00ce7bb4dee948adff5a9 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Wed, 15 Dec 2021 22:02:19 +0000
Subject: [PATCH 2300/4878] bpf: Fix signed bounds propagation after mov32

commit 3cf2b61eb06765e27fec6799292d9fb46d0b7e60 upstream.

For the case where both s32_{min,max}_value bounds are positive, the
__reg_assign_32_into_64() directly propagates them to their 64 bit
counterparts, otherwise it pessimises them into [0,u32_max] universe and
tries to refine them later on by learning through the tnum as per comment
in mentioned function. However, that does not always happen, for example,
in mov32 operation we call zext_32_to_64(dst_reg) which invokes the
__reg_assign_32_into_64() as is without subsequent bounds update as
elsewhere thus no refinement based on tnum takes place.

Thus, not calling into the __update_reg_bounds() / __reg_deduce_bounds() /
__reg_bound_offset() triplet as we do, for example, in case of ALU ops via
adjust_scalar_min_max_vals(), will lead to more pessimistic bounds when
dumping the full register state:

Before fix:

  0: (b4) w0 = -1
  1: R0_w=invP4294967295
     (id=0,imm=ffffffff,
      smin_value=4294967295,smax_value=4294967295,
      umin_value=4294967295,umax_value=4294967295,
      var_off=(0xffffffff; 0x0),
      s32_min_value=-1,s32_max_value=-1,
      u32_min_value=-1,u32_max_value=-1)

  1: (bc) w0 = w0
  2: R0_w=invP4294967295
     (id=0,imm=ffffffff,
      smin_value=0,smax_value=4294967295,
      umin_value=4294967295,umax_value=4294967295,
      var_off=(0xffffffff; 0x0),
      s32_min_value=-1,s32_max_value=-1,
      u32_min_value=-1,u32_max_value=-1)

Technically, the smin_value=0 and smax_value=4294967295 bounds are not
incorrect, but given the register is still a constant, they break assumptions
about const scalars that smin_value == smax_value and umin_value == umax_value.

After fix:

  0: (b4) w0 = -1
  1: R0_w=invP4294967295
     (id=0,imm=ffffffff,
      smin_value=4294967295,smax_value=4294967295,
      umin_value=4294967295,umax_value=4294967295,
      var_off=(0xffffffff; 0x0),
      s32_min_value=-1,s32_max_value=-1,
      u32_min_value=-1,u32_max_value=-1)

  1: (bc) w0 = w0
  2: R0_w=invP4294967295
     (id=0,imm=ffffffff,
      smin_value=4294967295,smax_value=4294967295,
      umin_value=4294967295,umax_value=4294967295,
      var_off=(0xffffffff; 0x0),
      s32_min_value=-1,s32_max_value=-1,
      u32_min_value=-1,u32_max_value=-1)

Without the smin_value == smax_value and umin_value == umax_value invariant
being intact for const scalars, it is possible to leak out kernel pointers
from unprivileged user space if the latter is enabled. For example, when such
registers are involved in pointer arithmtics, then adjust_ptr_min_max_vals()
will taint the destination register into an unknown scalar, and the latter
can be exported and stored e.g. into a BPF map value.

Fixes: 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking")
Reported-by: Kuee K1r0a <liulin063@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/verifier.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 95ab3f243acde..a5b2177ccdb78 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7125,6 +7125,10 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn)
 							 insn->dst_reg);
 				}
 				zext_32_to_64(dst_reg);
+
+				__update_reg_bounds(dst_reg);
+				__reg_deduce_bounds(dst_reg);
+				__reg_bound_offset(dst_reg);
 			}
 		} else {
 			/* case: R = imm
-- 
GitLab


From 279e0bf80d95184666c9d41361b1625c045d1dcb Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Wed, 15 Dec 2021 22:28:48 +0000
Subject: [PATCH 2301/4878] bpf: Make 32->64 bounds propagation slightly more
 robust

commit e572ff80f05c33cd0cb4860f864f5c9c044280b6 upstream.

Make the bounds propagation in __reg_assign_32_into_64() slightly more
robust and readable by aligning it similarly as we did back in the
__reg_combine_64_into_32() counterpart. Meaning, only propagate or
pessimize them as a smin/smax pair.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/verifier.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index a5b2177ccdb78..4e28961cfa53e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1249,22 +1249,28 @@ static void __reg_bound_offset(struct bpf_reg_state *reg)
 	reg->var_off = tnum_or(tnum_clear_subreg(var64_off), var32_off);
 }
 
+static bool __reg32_bound_s64(s32 a)
+{
+	return a >= 0 && a <= S32_MAX;
+}
+
 static void __reg_assign_32_into_64(struct bpf_reg_state *reg)
 {
 	reg->umin_value = reg->u32_min_value;
 	reg->umax_value = reg->u32_max_value;
-	/* Attempt to pull 32-bit signed bounds into 64-bit bounds
-	 * but must be positive otherwise set to worse case bounds
-	 * and refine later from tnum.
+
+	/* Attempt to pull 32-bit signed bounds into 64-bit bounds but must
+	 * be positive otherwise set to worse case bounds and refine later
+	 * from tnum.
 	 */
-	if (reg->s32_min_value >= 0 && reg->s32_max_value >= 0)
-		reg->smax_value = reg->s32_max_value;
-	else
-		reg->smax_value = U32_MAX;
-	if (reg->s32_min_value >= 0)
+	if (__reg32_bound_s64(reg->s32_min_value) &&
+	    __reg32_bound_s64(reg->s32_max_value)) {
 		reg->smin_value = reg->s32_min_value;
-	else
+		reg->smax_value = reg->s32_max_value;
+	} else {
 		reg->smin_value = 0;
+		reg->smax_value = U32_MAX;
+	}
 }
 
 static void __reg_combine_32_into_64(struct bpf_reg_state *reg)
-- 
GitLab


From 0612679e48d0f9c8723c94feae3309550dcf2edf Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Wed, 15 Dec 2021 23:48:54 +0000
Subject: [PATCH 2302/4878] bpf, selftests: Add test case trying to taint map
 value pointer

commit b1a7288dedc6caf9023f2676b4f5ed34cf0d4029 upstream.

Add a test case which tries to taint map value pointer arithmetic into a
unknown scalar with subsequent export through the map.

Before fix:

  # ./test_verifier 1186
  #1186/u map access: trying to leak tained dst reg FAIL
  Unexpected success to load!
  verification time 24 usec
  stack depth 8
  processed 15 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 1
  #1186/p map access: trying to leak tained dst reg FAIL
  Unexpected success to load!
  verification time 8 usec
  stack depth 8
  processed 15 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 1
  Summary: 0 PASSED, 0 SKIPPED, 2 FAILED

After fix:

  # ./test_verifier 1186
  #1186/u map access: trying to leak tained dst reg OK
  #1186/p map access: trying to leak tained dst reg OK
  Summary: 2 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../selftests/bpf/verifier/value_ptr_arith.c  | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tools/testing/selftests/bpf/verifier/value_ptr_arith.c b/tools/testing/selftests/bpf/verifier/value_ptr_arith.c
index a3e593ddfafc9..d8765a4d5bc6b 100644
--- a/tools/testing/selftests/bpf/verifier/value_ptr_arith.c
+++ b/tools/testing/selftests/bpf/verifier/value_ptr_arith.c
@@ -848,6 +848,29 @@
 	.errstr = "R0 invalid mem access 'inv'",
 	.errstr_unpriv = "R0 pointer -= pointer prohibited",
 },
+{
+	"map access: trying to leak tained dst reg",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_MOV32_IMM(BPF_REG_1, 0xFFFFFFFF),
+	BPF_MOV32_REG(BPF_REG_1, BPF_REG_1),
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_1),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 4 },
+	.result = REJECT,
+	.errstr = "math between map_value pointer and 4294967295 is not allowed",
+},
 {
 	"32bit pkt_ptr -= scalar",
 	.insns = {
-- 
GitLab


From e3a1ab5aea4c55c4dd69514fcd322c5f8e2b0148 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 1 Dec 2021 11:20:18 +0000
Subject: [PATCH 2303/4878] virtio_ring: Fix querying of maximum DMA mapping
 size for virtio device

commit 817fc978b5a29b039db0418a91072b31c9aab152 upstream.

virtio_max_dma_size() returns the maximum DMA mapping size of the virtio
device by querying dma_max_mapping_size() for the device when the DMA
API is in use for the vring. Unfortunately, the device passed is
initialised by register_virtio_device() and does not inherit the DMA
configuration from its parent, resulting in SWIOTLB errors when bouncing
is enabled and the default 256K mapping limit (IO_TLB_SEGSIZE) is not
respected:

  | virtio-pci 0000:00:01.0: swiotlb buffer is full (sz: 294912 bytes), total 1024 (slots), used 725 (slots)

Follow the pattern used elsewhere in the virtio_ring code when calling
into the DMA layer and pass the parent device to dma_max_mapping_size()
instead.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20211201112018.25276-1-will@kernel.org
Acked-by: Jason Wang <jasowang@redhat.com>
Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Fixes: e6d6dd6c875e ("virtio: Introduce virtio_max_dma_size()")
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index e9432dbbec0a7..cce75d3b3ba05 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -263,7 +263,7 @@ size_t virtio_max_dma_size(struct virtio_device *vdev)
 	size_t max_segment_size = SIZE_MAX;
 
 	if (vring_use_dma_api(vdev))
-		max_segment_size = dma_max_mapping_size(&vdev->dev);
+		max_segment_size = dma_max_mapping_size(vdev->dev.parent);
 
 	return max_segment_size;
 }
-- 
GitLab


From 51f6302f81d243772047a74ffeceddfb11c964d5 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 8 Dec 2021 13:33:37 +0300
Subject: [PATCH 2304/4878] vdpa: check that offsets are within bounds

commit 3ed21c1451a14d139e1ceb18f2fa70865ce3195a upstream.

In this function "c->off" is a u32 and "size" is a long.  On 64bit systems
if "c->off" is greater than "size" then "size - c->off" is a negative and
we always return -E2BIG.  But on 32bit systems the subtraction is type
promoted to a high positive u32 value and basically any "c->len" is
accepted.

Fixes: 4c8cf31885f6 ("vhost: introduce vDPA-based backend")
Reported-by: Xie Yongji <xieyongji@bytedance.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20211208103337.GA4047@kili
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/vhost/vdpa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index fdeb20f2f174c..e4d60009d9083 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -196,7 +196,7 @@ static int vhost_vdpa_config_validate(struct vhost_vdpa *v,
 		break;
 	}
 
-	if (c->len == 0)
+	if (c->len == 0 || c->off > size)
 		return -EINVAL;
 
 	if (c->len > size - c->off)
-- 
GitLab


From f5187a9d52ae3235772fd49530a8276dbefd2a7b Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Fri, 10 Dec 2021 10:38:27 +0100
Subject: [PATCH 2305/4878] recordmcount.pl: look for jgnop instruction as well
 as bcrl on s390

commit 85bf17b28f97ca2749968d8786dc423db320d9c2 upstream.

On s390, recordmcount.pl is looking for "bcrl 0,<xxx>" instructions in
the objdump -d outpout. However since binutils 2.37, objdump -d
display "jgnop <xxx>" for the same instruction. Update the
mcount_regex so that it accepts both.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211210093827.1623286-1-jmarchan@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/recordmcount.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index f459ae883a0a6..a4ca050815aba 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -252,7 +252,7 @@ if ($arch eq "x86_64") {
 
 } elsif ($arch eq "s390" && $bits == 64) {
     if ($cc =~ /-DCC_USING_HOTPATCH/) {
-	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*c0 04 00 00 00 00\\s*brcl\\s*0,[0-9a-f]+ <([^\+]*)>\$";
+	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*c0 04 00 00 00 00\\s*(bcrl\\s*0,|jgnop\\s*)[0-9a-f]+ <([^\+]*)>\$";
 	$mcount_adjust = 0;
     } else {
 	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_390_(PC|PLT)32DBL\\s+_mcount\\+0x2\$";
-- 
GitLab


From 0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Wed, 24 Nov 2021 12:07:39 -0500
Subject: [PATCH 2306/4878] dm btree remove: fix use after free in
 rebalance_children()

commit 1b8d2789dad0005fd5e7d35dab26a8e1203fb6da upstream.

Move dm_tm_unlock() after dm_tm_dec().

Cc: stable@vger.kernel.org
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/persistent-data/dm-btree-remove.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/persistent-data/dm-btree-remove.c b/drivers/md/persistent-data/dm-btree-remove.c
index 9e4d1212f4c16..63f2baed3c8a6 100644
--- a/drivers/md/persistent-data/dm-btree-remove.c
+++ b/drivers/md/persistent-data/dm-btree-remove.c
@@ -423,9 +423,9 @@ static int rebalance_children(struct shadow_spine *s,
 
 		memcpy(n, dm_block_data(child),
 		       dm_bm_block_size(dm_tm_get_bm(info->tm)));
-		dm_tm_unlock(info->tm, child);
 
 		dm_tm_dec(info->tm, dm_block_location(child));
+		dm_tm_unlock(info->tm, child);
 		return 0;
 	}
 
-- 
GitLab


From 4cc6badff97f74d0fce65f9784b5df3b64e4250b Mon Sep 17 00:00:00 2001
From: Paul Moore <paul@paul-moore.com>
Date: Thu, 9 Dec 2021 11:46:07 -0500
Subject: [PATCH 2307/4878] audit: improve robustness of the audit queue
 handling

commit f4b3ee3c85551d2d343a3ba159304066523f730f upstream.

If the audit daemon were ever to get stuck in a stopped state the
kernel's kauditd_thread() could get blocked attempting to send audit
records to the userspace audit daemon.  With the kernel thread
blocked it is possible that the audit queue could grow unbounded as
certain audit record generating events must be exempt from the queue
limits else the system enter a deadlock state.

This patch resolves this problem by lowering the kernel thread's
socket sending timeout from MAX_SCHEDULE_TIMEOUT to HZ/10 and tweaks
the kauditd_send_queue() function to better manage the various audit
queues when connection problems occur between the kernel and the
audit daemon.  With this patch, the backlog may temporarily grow
beyond the defined limits when the audit daemon is stopped and the
system is under heavy audit pressure, but kauditd_thread() will
continue to make progress and drain the queues as it would for other
connection problems.  For example, with the audit daemon put into a
stopped state and the system configured to audit every syscall it
was still possible to shutdown the system without a kernel panic,
deadlock, etc.; granted, the system was slow to shutdown but that is
to be expected given the extreme pressure of recording every syscall.

The timeout value of HZ/10 was chosen primarily through
experimentation and this developer's "gut feeling".  There is likely
no one perfect value, but as this scenario is limited in scope (root
privileges would be needed to send SIGSTOP to the audit daemon), it
is likely not worth exposing this as a tunable at present.  This can
always be done at a later date if it proves necessary.

Cc: stable@vger.kernel.org
Fixes: 5b52330bbfe63 ("audit: fix auditd/kernel connection state tracking")
Reported-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Tested-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/audit.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 68cee3bc8cfe6..d784000921da3 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -718,7 +718,7 @@ static int kauditd_send_queue(struct sock *sk, u32 portid,
 {
 	int rc = 0;
 	struct sk_buff *skb;
-	static unsigned int failed = 0;
+	unsigned int failed = 0;
 
 	/* NOTE: kauditd_thread takes care of all our locking, we just use
 	 *       the netlink info passed to us (e.g. sk and portid) */
@@ -735,32 +735,30 @@ static int kauditd_send_queue(struct sock *sk, u32 portid,
 			continue;
 		}
 
+retry:
 		/* grab an extra skb reference in case of error */
 		skb_get(skb);
 		rc = netlink_unicast(sk, skb, portid, 0);
 		if (rc < 0) {
-			/* fatal failure for our queue flush attempt? */
+			/* send failed - try a few times unless fatal error */
 			if (++failed >= retry_limit ||
 			    rc == -ECONNREFUSED || rc == -EPERM) {
-				/* yes - error processing for the queue */
 				sk = NULL;
 				if (err_hook)
 					(*err_hook)(skb);
-				if (!skb_hook)
-					goto out;
-				/* keep processing with the skb_hook */
+				if (rc == -EAGAIN)
+					rc = 0;
+				/* continue to drain the queue */
 				continue;
 			} else
-				/* no - requeue to preserve ordering */
-				skb_queue_head(queue, skb);
+				goto retry;
 		} else {
-			/* it worked - drop the extra reference and continue */
+			/* skb sent - drop the extra reference and continue */
 			consume_skb(skb);
 			failed = 0;
 		}
 	}
 
-out:
 	return (rc >= 0 ? 0 : rc);
 }
 
@@ -1609,7 +1607,8 @@ static int __net_init audit_net_init(struct net *net)
 		audit_panic("cannot initialize netlink socket in namespace");
 		return -ENOMEM;
 	}
-	aunet->sk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT;
+	/* limit the timeout in case auditd is blocked/stopped */
+	aunet->sk->sk_sndtimeo = HZ / 10;
 
 	return 0;
 }
-- 
GitLab


From 06294e7e341a5e537ba0d4630e211a7acae818ee Mon Sep 17 00:00:00 2001
From: Joakim Zhang <qiangqing.zhang@nxp.com>
Date: Sat, 16 Jan 2021 16:44:28 +0800
Subject: [PATCH 2308/4878] arm64: dts: imx8m: correct assigned clocks for FEC

commit 70eacf42a93aff6589a8b91279bbfe5f73c4ca3d upstream.

CLK_ENET_TIMER assigned clocks twice, should be a typo, correct to
CLK_ENET_PHY_REF clock.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 7 ++++---
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 7 ++++---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 7 ++++---
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 05ee062548e4f..f4d7bb75707df 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -866,11 +866,12 @@
 				assigned-clocks = <&clk IMX8MM_CLK_ENET_AXI>,
 						  <&clk IMX8MM_CLK_ENET_TIMER>,
 						  <&clk IMX8MM_CLK_ENET_REF>,
-						  <&clk IMX8MM_CLK_ENET_TIMER>;
+						  <&clk IMX8MM_CLK_ENET_PHY_REF>;
 				assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
 							 <&clk IMX8MM_SYS_PLL2_100M>,
-							 <&clk IMX8MM_SYS_PLL2_125M>;
-				assigned-clock-rates = <0>, <0>, <125000000>, <100000000>;
+							 <&clk IMX8MM_SYS_PLL2_125M>,
+							 <&clk IMX8MM_SYS_PLL2_50M>;
+				assigned-clock-rates = <0>, <100000000>, <125000000>, <0>;
 				fsl,num-tx-queues = <3>;
 				fsl,num-rx-queues = <3>;
 				status = "disabled";
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 16c7202885d70..aea723eb2ba3f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -753,11 +753,12 @@
 				assigned-clocks = <&clk IMX8MN_CLK_ENET_AXI>,
 						  <&clk IMX8MN_CLK_ENET_TIMER>,
 						  <&clk IMX8MN_CLK_ENET_REF>,
-						  <&clk IMX8MN_CLK_ENET_TIMER>;
+						  <&clk IMX8MN_CLK_ENET_PHY_REF>;
 				assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_266M>,
 							 <&clk IMX8MN_SYS_PLL2_100M>,
-							 <&clk IMX8MN_SYS_PLL2_125M>;
-				assigned-clock-rates = <0>, <0>, <125000000>, <100000000>;
+							 <&clk IMX8MN_SYS_PLL2_125M>,
+							 <&clk IMX8MN_SYS_PLL2_50M>;
+				assigned-clock-rates = <0>, <100000000>, <125000000>, <0>;
 				fsl,num-tx-queues = <3>;
 				fsl,num-rx-queues = <3>;
 				status = "disabled";
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 03ef0e5f909e4..acee71ca32d83 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -725,11 +725,12 @@
 				assigned-clocks = <&clk IMX8MP_CLK_ENET_AXI>,
 						  <&clk IMX8MP_CLK_ENET_TIMER>,
 						  <&clk IMX8MP_CLK_ENET_REF>,
-						  <&clk IMX8MP_CLK_ENET_TIMER>;
+						  <&clk IMX8MP_CLK_ENET_PHY_REF>;
 				assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_266M>,
 							 <&clk IMX8MP_SYS_PLL2_100M>,
-							 <&clk IMX8MP_SYS_PLL2_125M>;
-				assigned-clock-rates = <0>, <0>, <125000000>, <100000000>;
+							 <&clk IMX8MP_SYS_PLL2_125M>,
+							 <&clk IMX8MP_SYS_PLL2_50M>;
+				assigned-clock-rates = <0>, <100000000>, <125000000>, <0>;
 				fsl,num-tx-queues = <3>;
 				fsl,num-rx-queues = <3>;
 				status = "disabled";
-- 
GitLab


From 3516bc149223a4d48b0cf0beb6a15fcb147b51a1 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Thu, 18 Mar 2021 08:13:30 -0300
Subject: [PATCH 2309/4878] arm64: dts: imx8mp-evk: Improve the Ethernet PHY
 description

commit 798a1807ab13a38e21c6fecd8d22a513d6786e2d upstream.

According to the datasheet RTL8211, it must be asserted low for at least
10ms and at least 72ms "for internal circuits settling time" before
accessing the PHY registers.

Add properties to describe such requirements.

Reported-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index ad66f1286d95c..c13b4a02d12f8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -62,6 +62,8 @@
 			reg = <1>;
 			eee-broken-1000t;
 			reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10000>;
+			reset-deassert-us = <80000>;
 		};
 	};
 };
-- 
GitLab


From ba866840b240a3f7c4ab7c980e18e78deb6132c3 Mon Sep 17 00:00:00 2001
From: Artem Lapkin <email2tema@gmail.com>
Date: Mon, 15 Nov 2021 16:33:21 +0800
Subject: [PATCH 2310/4878] arm64: dts: rockchip: remove
 mmc-hs400-enhanced-strobe from rk3399-khadas-edge

[ Upstream commit 6dd0053683804427529ef3523f7872f473440a19 ]

Remove mmc-hs400-enhanced-strobe from the rk3399-khadas-edge dts to
improve compatibility with a wider range of eMMC chips.

Before (BJTD4R 29.1 GiB):

[    7.001493] mmc2: CQHCI version 5.10
[    7.027971] mmc2: SDHCI controller on fe330000.mmc [fe330000.mmc] using ADMA
.......
[    7.207086] mmc2: mmc_select_hs400es failed, error -110
[    7.207129] mmc2: error -110 whilst initialising MMC card
[    7.308893] mmc2: mmc_select_hs400es failed, error -110
[    7.308921] mmc2: error -110 whilst initialising MMC card
[    7.427524] mmc2: mmc_select_hs400es failed, error -110
[    7.427546] mmc2: error -110 whilst initialising MMC card
[    7.590993] mmc2: mmc_select_hs400es failed, error -110
[    7.591012] mmc2: error -110 whilst initialising MMC card

After:

[    6.960785] mmc2: CQHCI version 5.10
[    6.984672] mmc2: SDHCI controller on fe330000.mmc [fe330000.mmc] using ADMA
[    7.175021] mmc2: Command Queue Engine enabled
[    7.175053] mmc2: new HS400 MMC card at address 0001
[    7.175808] mmcblk2: mmc2:0001 BJTD4R 29.1 GiB
[    7.176033] mmcblk2boot0: mmc2:0001 BJTD4R 4.00 MiB
[    7.176245] mmcblk2boot1: mmc2:0001 BJTD4R 4.00 MiB
[    7.176495] mmcblk2rpmb: mmc2:0001 BJTD4R 4.00 MiB, chardev (242:0)

Fixes: c2aacceedc86 ("arm64: dts: rockchip: Add support for Khadas Edge/Edge-V/Captain boards")
Signed-off-by: Artem Lapkin <art@khadas.com>
Link: https://lore.kernel.org/r/20211115083321.2627461-1-art@khadas.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi
index 635afdd99122f..2c644ac1f84b9 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi
@@ -699,7 +699,6 @@
 &sdhci {
 	bus-width = <8>;
 	mmc-hs400-1_8v;
-	mmc-hs400-enhanced-strobe;
 	non-removable;
 	status = "okay";
 };
-- 
GitLab


From 9fcdbbf3964d5448e95a90006abb90ffc4e5b869 Mon Sep 17 00:00:00 2001
From: John Keeping <john@metanate.com>
Date: Tue, 2 Nov 2021 18:29:07 +0000
Subject: [PATCH 2311/4878] arm64: dts: rockchip: fix rk3308-roc-cc vcc-sd
 supply

[ Upstream commit 772fb46109f635dd75db20c86b7eaf48efa46cef ]

Correct a typo in the vin-supply property.  The input supply is
always-on, so this mistake doesn't affect whether the supply is actually
enabled correctly.

Fixes: 4403e1237be3 ("arm64: dts: rockchip: Add devicetree for board roc-rk3308-cc")
Signed-off-by: John Keeping <john@metanate.com>
Link: https://lore.kernel.org/r/20211102182908.3409670-2-john@metanate.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts
index bce6f8b7db436..fbcb9531cc70d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts
@@ -91,7 +91,7 @@
 		regulator-max-microvolt = <3300000>;
 		regulator-always-on;
 		regulator-boot-on;
-		vim-supply = <&vcc_io>;
+		vin-supply = <&vcc_io>;
 	};
 
 	vdd_core: vdd-core {
-- 
GitLab


From 49bd597719bf89afef55e13d2a580f5591f1de6e Mon Sep 17 00:00:00 2001
From: John Keeping <john@metanate.com>
Date: Tue, 2 Nov 2021 18:29:08 +0000
Subject: [PATCH 2312/4878] arm64: dts: rockchip: fix rk3399-leez-p710
 vcc3v3-lan supply

[ Upstream commit 2b454a90e2ccdd6e03f88f930036da4df577be76 ]

Correct a typo in the vin-supply property.  The input supply is
always-on, so this mistake doesn't affect whether the supply is actually
enabled correctly.

Fixes: fc702ed49a86 ("arm64: dts: rockchip: Add dts for Leez RK3399 P710 SBC")
Signed-off-by: John Keeping <john@metanate.com>
Link: https://lore.kernel.org/r/20211102182908.3409670-3-john@metanate.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts b/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts
index 1fa80ac15464b..88984b5e67b6e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-leez-p710.dts
@@ -49,7 +49,7 @@
 		regulator-boot-on;
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
-		vim-supply = <&vcc3v3_sys>;
+		vin-supply = <&vcc3v3_sys>;
 	};
 
 	vcc3v3_sys: vcc3v3-sys {
-- 
GitLab


From 24983f750881b57f7476c51a3d07b08e017f425c Mon Sep 17 00:00:00 2001
From: Alex Bee <knaerzche@gmail.com>
Date: Wed, 27 Oct 2021 16:37:25 +0200
Subject: [PATCH 2313/4878] arm64: dts: rockchip: fix audio-supply for Rock Pi
 4

[ Upstream commit 8240e87f16d17a9592c9d67857a3dcdbcb98f10d ]

As stated in the schematics [1] and [2] P5 the APIO5 domain is supplied
by RK808-D Buck4, which in our case vcc1v8_codec - i.e. a 1.8 V regulator.

Currently only white noise comes from the ES8316's output, which - for
whatever reason - came up only after the the correct switch from i2s0_8ch_bus
to i2s0_2ch_bus for i2s0's pinctrl was done.

Fix this by setting the correct regulator for audio-supply.

[1] https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi4_v13_sch_20181112.pdf
[2] https://dl.radxa.com/rockpi4/docs/hw/rockpi4/rockpi_4c_v12_sch_20200620.pdf

Fixes: 1b5715c602fd ("arm64: dts: rockchip: add ROCK Pi 4 DTS support")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20211027143726.165809-1-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
index 678a336010bf8..f121203081b97 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -459,7 +459,7 @@
 	status = "okay";
 
 	bt656-supply = <&vcc_3v0>;
-	audio-supply = <&vcc_3v0>;
+	audio-supply = <&vcc1v8_codec>;
 	sdmmc-supply = <&vcc_sdio>;
 	gpio1830-supply = <&vcc_3v0>;
 };
-- 
GitLab


From eed897a22230e3231a740eddd7d6d95ba476625f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 22 Nov 2021 12:47:40 +0100
Subject: [PATCH 2314/4878] mac80211: track only QoS data frames for admission
 control

[ Upstream commit d5e568c3a4ec2ddd23e7dc5ad5b0c64e4f22981a ]

For admission control, obviously all of that only works for
QoS data frames, otherwise we cannot even access the QoS
field in the header.

Syzbot reported (see below) an uninitialized value here due
to a status of a non-QoS nullfunc packet, which isn't even
long enough to contain the QoS header.

Fix this to only do anything for QoS data packets.

Reported-by: syzbot+614e82b88a1a4973e534@syzkaller.appspotmail.com
Fixes: 02219b3abca5 ("mac80211: add WMM admission control support")
Link: https://lore.kernel.org/r/20211122124737.dad29e65902a.Ieb04587afacb27c14e0de93ec1bfbefb238cc2a0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/mlme.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 32bc30ec50ec9..7bd42827540ae 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2493,11 +2493,18 @@ static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata,
 					   u16 tx_time)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	u16 tid = ieee80211_get_tid(hdr);
-	int ac = ieee80211_ac_from_tid(tid);
-	struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
+	u16 tid;
+	int ac;
+	struct ieee80211_sta_tx_tspec *tx_tspec;
 	unsigned long now = jiffies;
 
+	if (!ieee80211_is_data_qos(hdr->frame_control))
+		return;
+
+	tid = ieee80211_get_tid(hdr);
+	ac = ieee80211_ac_from_tid(tid);
+	tx_tspec = &ifmgd->tx_tspec[ac];
+
 	if (likely(!tx_tspec->admitted_time))
 		return;
 
-- 
GitLab


From 640e28d618e82be78fb43b4bf5113bc90d6aa442 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 24 Nov 2021 17:54:04 +0300
Subject: [PATCH 2315/4878] tee: amdtee: fix an IS_ERR() vs NULL bug

[ Upstream commit 9d7482771fac8d8e38e763263f2ca0ca12dd22c6 ]

The __get_free_pages() function does not return error pointers it returns
NULL so fix this condition to avoid a NULL dereference.

Fixes: 757cc3e9ff1d ("tee: add AMD-TEE driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tee/amdtee/core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/tee/amdtee/core.c b/drivers/tee/amdtee/core.c
index da6b88e80dc07..297dc62bca298 100644
--- a/drivers/tee/amdtee/core.c
+++ b/drivers/tee/amdtee/core.c
@@ -203,9 +203,8 @@ static int copy_ta_binary(struct tee_context *ctx, void *ptr, void **ta,
 
 	*ta_size = roundup(fw->size, PAGE_SIZE);
 	*ta = (void *)__get_free_pages(GFP_KERNEL, get_order(*ta_size));
-	if (IS_ERR(*ta)) {
-		pr_err("%s: get_free_pages failed 0x%llx\n", __func__,
-		       (u64)*ta);
+	if (!*ta) {
+		pr_err("%s: get_free_pages failed\n", __func__);
 		rc = -ENOMEM;
 		goto rel_fw;
 	}
-- 
GitLab


From e0f06c32afb24d6bcb024334ff8c392221a312e2 Mon Sep 17 00:00:00 2001
From: Hu Weiwen <sehuww@mail.scut.edu.cn>
Date: Mon, 22 Nov 2021 22:22:12 +0800
Subject: [PATCH 2316/4878] ceph: fix duplicate increment of opened_inodes
 metric

[ Upstream commit 973e5245637accc4002843f6b888495a6a7762bc ]

opened_inodes is incremented twice when the same inode is opened twice
with O_RDONLY and O_WRONLY respectively.

To reproduce, run this python script, then check the metrics:

import os
for _ in range(10000):
    fd_r = os.open('a', os.O_RDONLY)
    fd_w = os.open('a', os.O_WRONLY)
    os.close(fd_r)
    os.close(fd_w)

Fixes: 1dd8d4708136 ("ceph: metrics for opened files, pinned caps and opened inodes")
Signed-off-by: Hu Weiwen <sehuww@mail.scut.edu.cn>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/caps.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 676f551953060..d3f67271d3c72 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -4359,7 +4359,7 @@ void ceph_get_fmode(struct ceph_inode_info *ci, int fmode, int count)
 {
 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(ci->vfs_inode.i_sb);
 	int bits = (fmode << 1) | 1;
-	bool is_opened = false;
+	bool already_opened = false;
 	int i;
 
 	if (count == 1)
@@ -4367,19 +4367,19 @@ void ceph_get_fmode(struct ceph_inode_info *ci, int fmode, int count)
 
 	spin_lock(&ci->i_ceph_lock);
 	for (i = 0; i < CEPH_FILE_MODE_BITS; i++) {
-		if (bits & (1 << i))
-			ci->i_nr_by_mode[i] += count;
-
 		/*
-		 * If any of the mode ref is larger than 1,
+		 * If any of the mode ref is larger than 0,
 		 * that means it has been already opened by
 		 * others. Just skip checking the PIN ref.
 		 */
-		if (i && ci->i_nr_by_mode[i] > 1)
-			is_opened = true;
+		if (i && ci->i_nr_by_mode[i])
+			already_opened = true;
+
+		if (bits & (1 << i))
+			ci->i_nr_by_mode[i] += count;
 	}
 
-	if (!is_opened)
+	if (!already_opened)
 		percpu_counter_inc(&mdsc->metric.opened_inodes);
 	spin_unlock(&ci->i_ceph_lock);
 }
-- 
GitLab


From 7b4cc168d9ca3eb004969b413c0e0bd08a1fef4d Mon Sep 17 00:00:00 2001
From: Xiubo Li <xiubli@redhat.com>
Date: Tue, 30 Nov 2021 19:20:34 +0800
Subject: [PATCH 2317/4878] ceph: initialize pathlen variable in
 reconnect_caps_cb

[ Upstream commit ee2a095d3b24f300a5e11944d208801e928f108c ]

The smatch static checker warned about an uninitialized symbol usage in
this function, in the case where ceph_mdsc_build_path returns an error.

It turns out that that case is harmless, but it just looks sketchy.
Initialize the variable at declaration time, and remove the unneeded
setting of it later.

Fixes: a33f6432b3a6 ("ceph: encode inodes' parent/d_name in cap reconnect message")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/mds_client.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 76e347a8cf088..981a915906314 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3696,7 +3696,7 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 	struct ceph_pagelist *pagelist = recon_state->pagelist;
 	struct dentry *dentry;
 	char *path;
-	int pathlen, err;
+	int pathlen = 0, err;
 	u64 pathbase;
 	u64 snap_follows;
 
@@ -3716,7 +3716,6 @@ static int reconnect_caps_cb(struct inode *inode, struct ceph_cap *cap,
 		}
 	} else {
 		path = NULL;
-		pathlen = 0;
 		pathbase = 0;
 	}
 
-- 
GitLab


From 429bb01e4dda3c9b544928a1fae465ff9b2be231 Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@kernel.org>
Date: Mon, 1 Nov 2021 19:36:30 -0500
Subject: [PATCH 2318/4878] ARM: socfpga: dts: fix qspi node compatible

[ Upstream commit cb25b11943cbcc5a34531129952870420f8be858 ]

The QSPI flash node needs to have the required "jedec,spi-nor" in the
compatible string.

Fixes: 1df99da8953 ("ARM: dts: socfpga: Enable QSPI in Arria10 devkit")
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/socfpga_arria10_socdk_qspi.dts   | 2 +-
 arch/arm/boot/dts/socfpga_arria5_socdk.dts         | 2 +-
 arch/arm/boot/dts/socfpga_cyclone5_socdk.dts       | 2 +-
 arch/arm/boot/dts/socfpga_cyclone5_sockit.dts      | 2 +-
 arch/arm/boot/dts/socfpga_cyclone5_socrates.dts    | 2 +-
 arch/arm/boot/dts/socfpga_cyclone5_sodia.dts       | 2 +-
 arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts | 4 ++--
 7 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/socfpga_arria10_socdk_qspi.dts b/arch/arm/boot/dts/socfpga_arria10_socdk_qspi.dts
index 2b645642b9352..2a745522404d6 100644
--- a/arch/arm/boot/dts/socfpga_arria10_socdk_qspi.dts
+++ b/arch/arm/boot/dts/socfpga_arria10_socdk_qspi.dts
@@ -12,7 +12,7 @@
 	flash0: n25q00@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q00aa";
+		compatible = "micron,mt25qu02g", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <100000000>;
 
diff --git a/arch/arm/boot/dts/socfpga_arria5_socdk.dts b/arch/arm/boot/dts/socfpga_arria5_socdk.dts
index 90e676e7019f2..1b02d46496a85 100644
--- a/arch/arm/boot/dts/socfpga_arria5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_arria5_socdk.dts
@@ -119,7 +119,7 @@
 	flash: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q256a";
+		compatible = "micron,n25q256a", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <100000000>;
 
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
index 6f138b2b26163..51bb436784e24 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -124,7 +124,7 @@
 	flash0: n25q00@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q00";
+		compatible = "micron,mt25qu02g", "jedec,spi-nor";
 		reg = <0>;	/* chip select */
 		spi-max-frequency = <100000000>;
 
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
index c155ff02eb6e0..cae9ddd5ed38b 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
@@ -169,7 +169,7 @@
 	flash: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q00";
+		compatible = "micron,mt25qu02g", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <100000000>;
 
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts b/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts
index 8d5d3996f6f27..ca18b959e6559 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socrates.dts
@@ -80,7 +80,7 @@
 	flash: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q256a";
+		compatible = "micron,n25q256a", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <100000000>;
 		m25p,fast-read;
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_sodia.dts b/arch/arm/boot/dts/socfpga_cyclone5_sodia.dts
index 99a71757cdf46..3f7aa7bf0863a 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_sodia.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_sodia.dts
@@ -116,7 +116,7 @@
 	flash0: n25q512a@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q512a";
+		compatible = "micron,n25q512a", "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <100000000>;
 
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts b/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
index a060718758b67..25874e1b9c829 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts
@@ -224,7 +224,7 @@
 	n25q128@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q128";
+		compatible = "micron,n25q128", "jedec,spi-nor";
 		reg = <0>;		/* chip select */
 		spi-max-frequency = <100000000>;
 		m25p,fast-read;
@@ -241,7 +241,7 @@
 	n25q00@1 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		compatible = "n25q00";
+		compatible = "micron,mt25qu02g", "jedec,spi-nor";
 		reg = <1>;		/* chip select */
 		spi-max-frequency = <100000000>;
 		m25p,fast-read;
-- 
GitLab


From cc426a91d3842092cb7bf2d490b50c4519b622a0 Mon Sep 17 00:00:00 2001
From: Mike Tipton <quic_mdtipton@quicinc.com>
Date: Mon, 8 Nov 2021 20:34:38 -0800
Subject: [PATCH 2319/4878] clk: Don't parent clks until the parent is fully
 registered

[ Upstream commit 54baf56eaa40aa5cdcd02b3c20d593e4e1211220 ]

Before commit fc0c209c147f ("clk: Allow parents to be specified without
string names") child clks couldn't find their parent until the parent
clk was added to a list in __clk_core_init(). After that commit, child
clks can reference their parent clks directly via a clk_hw pointer, or
they can lookup that clk_hw pointer via DT if the parent clk is
registered with an OF clk provider.

The common clk framework treats hw->core being non-NULL as "the clk is
registered" per the logic within clk_core_fill_parent_index():

	parent = entry->hw->core;
	/*
	 * We have a direct reference but it isn't registered yet?
	 * Orphan it and let clk_reparent() update the orphan status
	 * when the parent is registered.
	 */
	if (!parent)

Therefore we need to be extra careful to not set hw->core until the clk
is fully registered with the clk framework. Otherwise we can get into a
situation where a child finds a parent clk and we move the child clk off
the orphan list when the parent isn't actually registered, wrecking our
enable accounting and breaking critical clks.

Consider the following scenario:

  CPU0                                     CPU1
  ----                                     ----
  struct clk_hw clkBad;
  struct clk_hw clkA;

  clkA.init.parent_hws = { &clkBad };

  clk_hw_register(&clkA)                   clk_hw_register(&clkBad)
   ...                                      __clk_register()
					     hw->core = core
					     ...
   __clk_register()
    __clk_core_init()
     clk_prepare_lock()
     __clk_init_parent()
      clk_core_get_parent_by_index()
       clk_core_fill_parent_index()
        if (entry->hw) {
	 parent = entry->hw->core;

At this point, 'parent' points to clkBad even though clkBad hasn't been
fully registered yet. Ouch! A similar problem can happen if a clk
controller registers orphan clks that are referenced in the DT node of
another clk controller.

Let's fix all this by only setting the hw->core pointer underneath the
clk prepare lock in __clk_core_init(). This way we know that
clk_core_fill_parent_index() can't see hw->core be non-NULL until the
clk is fully registered.

Fixes: fc0c209c147f ("clk: Allow parents to be specified without string names")
Signed-off-by: Mike Tipton <quic_mdtipton@quicinc.com>
Link: https://lore.kernel.org/r/20211109043438.4639-1-quic_mdtipton@quicinc.com
[sboyd@kernel.org: Reword commit text, update comment]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/clk.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 61c78714c0957..515ef39c4610c 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3389,6 +3389,14 @@ static int __clk_core_init(struct clk_core *core)
 
 	clk_prepare_lock();
 
+	/*
+	 * Set hw->core after grabbing the prepare_lock to synchronize with
+	 * callers of clk_core_fill_parent_index() where we treat hw->core
+	 * being NULL as the clk not being registered yet. This is crucial so
+	 * that clks aren't parented until their parent is fully registered.
+	 */
+	core->hw->core = core;
+
 	ret = clk_pm_runtime_get(core);
 	if (ret)
 		goto unlock;
@@ -3557,8 +3565,10 @@ static int __clk_core_init(struct clk_core *core)
 out:
 	clk_pm_runtime_put(core);
 unlock:
-	if (ret)
+	if (ret) {
 		hlist_del_init(&core->child_node);
+		core->hw->core = NULL;
+	}
 
 	clk_prepare_unlock();
 
@@ -3804,7 +3814,6 @@ __clk_register(struct device *dev, struct device_node *np, struct clk_hw *hw)
 	core->num_parents = init->num_parents;
 	core->min_rate = 0;
 	core->max_rate = ULONG_MAX;
-	hw->core = core;
 
 	ret = clk_core_populate_parent_map(core, init);
 	if (ret)
@@ -3822,7 +3831,7 @@ __clk_register(struct device *dev, struct device_node *np, struct clk_hw *hw)
 		goto fail_create_clk;
 	}
 
-	clk_core_link_consumer(hw->core, hw->clk);
+	clk_core_link_consumer(core, hw->clk);
 
 	ret = __clk_core_init(core);
 	if (!ret)
-- 
GitLab


From 94a01e6fb2d89a9df915c4b4839e39a8622858e1 Mon Sep 17 00:00:00 2001
From: Stephan Gerhold <stephan@gerhold.net>
Date: Mon, 6 Dec 2021 12:38:28 +0100
Subject: [PATCH 2320/4878] soc: imx: Register SoC device only on i.MX boards

[ Upstream commit 4ebd29f91629e69da7d57390cdc953772eee03ab ]

At the moment, using the ARM32 multi_v7_defconfig always results in two
SoCs being exposed in sysfs. This is wrong, as far as I'm aware the
Qualcomm DragonBoard 410c does not actually make use of a i.MX SoC. :)

  qcom-db410c:/sys/devices/soc0$ grep . *
  family:Freescale i.MX
  machine:Qualcomm Technologies, Inc. APQ 8016 SBC
  revision:0.0
  serial_number:0000000000000000
  soc_id:Unknown

  qcom-db410c:/sys/devices/soc1$ grep . *
  family:Snapdragon
  machine:APQ8016
  ...

This happens because imx_soc_device_init() registers the soc device
unconditionally, even when running on devices that do not make use of i.MX.
Arnd already reported this more than a year ago and even suggested a fix
similar to this commit, but for some reason it was never submitted.

Fix it by checking if the "__mxc_cpu_type" variable was actually
initialized by earlier platform code. On devices without i.MX it will
simply stay 0.

Cc: Peng Fan <peng.fan@nxp.com>
Fixes: d2199b34871b ("ARM: imx: use device_initcall for imx_soc_device_init")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/CAK8P3a0hxO1TmK6oOMQ70AHSWJnP_CAq57YMOutrxkSYNjFeuw@mail.gmail.com/
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/imx/soc-imx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/soc/imx/soc-imx.c b/drivers/soc/imx/soc-imx.c
index 01bfea1cb64a8..1e8780299d5c4 100644
--- a/drivers/soc/imx/soc-imx.c
+++ b/drivers/soc/imx/soc-imx.c
@@ -33,6 +33,10 @@ static int __init imx_soc_device_init(void)
 	u32 val;
 	int ret;
 
+	/* Return early if this is running on devices with different SoCs */
+	if (!__mxc_cpu_type)
+		return 0;
+
 	if (of_machine_is_compatible("fsl,ls1021a"))
 		return 0;
 
-- 
GitLab


From 9983425c203bf2b3198535c0361aaca2f25a9a61 Mon Sep 17 00:00:00 2001
From: Wei Wang <wei.w.wang@intel.com>
Date: Thu, 25 Nov 2021 20:18:23 -0500
Subject: [PATCH 2321/4878] virtio/vsock: fix the transport to work with
 VMADDR_CID_ANY

[ Upstream commit 1db8f5fc2e5c66a5c51e1f6488e0ba7d45c29ae4 ]

The VMADDR_CID_ANY flag used by a socket means that the socket isn't bound
to any specific CID. For example, a host vsock server may want to be bound
with VMADDR_CID_ANY, so that a guest vsock client can connect to the host
server with CID=VMADDR_CID_HOST (i.e. 2), and meanwhile, a host vsock
client can connect to the same local server with CID=VMADDR_CID_LOCAL
(i.e. 1).

The current implementation sets the destination socket's svm_cid to a
fixed CID value after the first client's connection, which isn't an
expected operation. For example, if the guest client first connects to the
host server, the server's svm_cid gets set to VMADDR_CID_HOST, then other
host clients won't be able to connect to the server anymore.

Reproduce steps:
1. Run the host server:
   socat VSOCK-LISTEN:1234,fork -
2. Run a guest client to connect to the host server:
   socat - VSOCK-CONNECT:2:1234
3. Run a host client to connect to the host server:
   socat - VSOCK-CONNECT:1:1234

Without this patch, step 3. above fails to connect, and socat complains
"socat[1720] E connect(5, AF=40 cid:1 port:1234, 16): Connection
reset by peer".
With this patch, the above works well.

Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Link: https://lore.kernel.org/r/20211126011823.1760-1-wei.w.wang@intel.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/vmw_vsock/virtio_transport_common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 902cb6dd710bd..d6d3a05c008a4 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1153,7 +1153,8 @@ void virtio_transport_recv_pkt(struct virtio_transport *t,
 	space_available = virtio_transport_space_update(sk, pkt);
 
 	/* Update CID in case it has changed after a transport reset event */
-	vsk->local_addr.svm_cid = dst.svm_cid;
+	if (vsk->local_addr.svm_cid != VMADDR_CID_ANY)
+		vsk->local_addr.svm_cid = dst.svm_cid;
 
 	if (space_available)
 		sk->sk_write_space(sk);
-- 
GitLab


From c058c544e73acabc527bf72ec1ccbb2a2581c291 Mon Sep 17 00:00:00 2001
From: Jie2x Zhou <jie2x.zhou@intel.com>
Date: Thu, 9 Dec 2021 10:02:30 +0800
Subject: [PATCH 2322/4878] selftests: net: Correct ping6 expected rc from 2 to
 1

[ Upstream commit 92816e2629808726af015c7f5b14adc8e4f8b147 ]

./fcnal-test.sh -v -t ipv6_ping
TEST: ping out, VRF bind - ns-B IPv6 LLA                                      [FAIL]
TEST: ping out, VRF bind - multicast IP                                       [FAIL]

ping6 is failing as it should.
COMMAND: ip netns exec ns-A /bin/ping6 -c1 -w1 fe80::7c4c:bcff:fe66:a63a%red
strace of ping6 shows it is failing with '1',
so change the expected rc from 2 to 1.

Fixes: c0644e71df33 ("selftests: Add ipv6 ping tests to fcnal-test")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jie2x Zhou <jie2x.zhou@intel.com>
Link: https://lore.kernel.org/r/20211209020230.37270-1-jie2x.zhou@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 7c9ace9d15991..a830358ba2496 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -2128,7 +2128,7 @@ ipv6_ping_vrf()
 		log_start
 		show_hint "Fails since VRF device does not support linklocal or multicast"
 		run_cmd ${ping6} -c1 -w1 ${a}
-		log_test_addr ${a} $? 2 "ping out, VRF bind"
+		log_test_addr ${a} $? 1 "ping out, VRF bind"
 	done
 
 	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
-- 
GitLab


From 1208b445a497bf3bb5ca74bea873186b92cb7277 Mon Sep 17 00:00:00 2001
From: Philipp Rudo <prudo@redhat.com>
Date: Wed, 8 Dec 2021 14:07:41 +0100
Subject: [PATCH 2323/4878] s390/kexec_file: fix error handling when applying
 relocations

[ Upstream commit 41967a37b8eedfee15b81406a9f3015be90d3980 ]

arch_kexec_apply_relocations_add currently ignores all errors returned
by arch_kexec_do_relocs. This means that every unknown relocation is
silently skipped causing unpredictable behavior while the relocated code
runs. Fix this by checking for errors and fail kexec_file_load if an
unknown relocation type is encountered.

The problem was found after gcc changed its behavior and used
R_390_PLT32DBL relocations for brasl instruction and relied on ld to
resolve the relocations in the final link in case direct calls are
possible. As the purgatory code is only linked partially (option -r)
ld didn't resolve the relocations leaving them for arch_kexec_do_relocs.
But arch_kexec_do_relocs doesn't know how to handle R_390_PLT32DBL
relocations so they were silently skipped. This ultimately caused an
endless loop in the purgatory as the brasl instructions kept branching
to itself.

Fixes: 71406883fd35 ("s390/kexec_file: Add kexec_file_load system call")
Reported-by: Tao Liu <ltao@redhat.com>
Signed-off-by: Philipp Rudo <prudo@redhat.com>
Link: https://lore.kernel.org/r/20211208130741.5821-3-prudo@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kernel/machine_kexec_file.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/s390/kernel/machine_kexec_file.c b/arch/s390/kernel/machine_kexec_file.c
index e7435f3a3d2d2..76cd09879eaf4 100644
--- a/arch/s390/kernel/machine_kexec_file.c
+++ b/arch/s390/kernel/machine_kexec_file.c
@@ -277,6 +277,7 @@ int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 {
 	Elf_Rela *relas;
 	int i, r_type;
+	int ret;
 
 	relas = (void *)pi->ehdr + relsec->sh_offset;
 
@@ -311,7 +312,11 @@ int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 		addr = section->sh_addr + relas[i].r_offset;
 
 		r_type = ELF64_R_TYPE(relas[i].r_info);
-		arch_kexec_do_relocs(r_type, loc, val, addr);
+		ret = arch_kexec_do_relocs(r_type, loc, val, addr);
+		if (ret) {
+			pr_err("Unknown rela relocation: %d\n", r_type);
+			return -ENOEXEC;
+		}
 	}
 	return 0;
 }
-- 
GitLab


From 20ad1ef02f9ad5e1dda9eeb113e4c158b4806986 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 10 Dec 2021 06:20:46 -0800
Subject: [PATCH 2324/4878] sch_cake: do not call cake_destroy() from
 cake_init()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit ab443c53916730862cec202078d36fd4008bea79 ]

qdiscs are not supposed to call their own destroy() method
from init(), because core stack already does that.

syzbot was able to trigger use after free:

DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock_common kernel/locking/mutex.c:586 [inline]
WARNING: CPU: 0 PID: 21902 at kernel/locking/mutex.c:586 __mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740
Modules linked in:
CPU: 0 PID: 21902 Comm: syz-executor189 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:586 [inline]
RIP: 0010:__mutex_lock+0x9ec/0x12f0 kernel/locking/mutex.c:740
Code: 08 84 d2 0f 85 19 08 00 00 8b 05 97 38 4b 04 85 c0 0f 85 27 f7 ff ff 48 c7 c6 20 00 ac 89 48 c7 c7 a0 fe ab 89 e8 bf 76 ba ff <0f> 0b e9 0d f7 ff ff 48 8b 44 24 40 48 8d b8 c8 08 00 00 48 89 f8
RSP: 0018:ffffc9000627f290 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802315d700 RSI: ffffffff815f1db8 RDI: fffff52000c4fe44
RBP: ffff88818f28e000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ebb5e R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc9000627f458 R15: 0000000093c30000
FS:  0000555556abc400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda689c3303 CR3: 000000001cfbb000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 tcf_chain0_head_change_cb_del+0x2e/0x3d0 net/sched/cls_api.c:810
 tcf_block_put_ext net/sched/cls_api.c:1381 [inline]
 tcf_block_put_ext net/sched/cls_api.c:1376 [inline]
 tcf_block_put+0xbc/0x130 net/sched/cls_api.c:1394
 cake_destroy+0x3f/0x80 net/sched/sch_cake.c:2695
 qdisc_create.constprop.0+0x9da/0x10f0 net/sched/sch_api.c:1293
 tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x904/0xdf0 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:724
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1bb06badb9
Code: Unable to access opcode bytes at RIP 0x7f1bb06bad8f.
RSP: 002b:00007fff3012a658 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1bb06badb9
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000246 R12: 00007fff3012a688
R13: 00007fff3012a6a0 R14: 00007fff3012a6e0 R15: 00000000000013c2
 </TASK>

Fixes: 046f6fd5daef ("sched: Add Common Applications Kept Enhanced (cake) qdisc")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://lore.kernel.org/r/20211210142046.698336-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_cake.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index c2c37ffd94f22..c580139fcedec 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -2736,7 +2736,7 @@ static int cake_init(struct Qdisc *sch, struct nlattr *opt,
 	q->tins = kvcalloc(CAKE_MAX_TINS, sizeof(struct cake_tin_data),
 			   GFP_KERNEL);
 	if (!q->tins)
-		goto nomem;
+		return -ENOMEM;
 
 	for (i = 0; i < CAKE_MAX_TINS; i++) {
 		struct cake_tin_data *b = q->tins + i;
@@ -2766,10 +2766,6 @@ static int cake_init(struct Qdisc *sch, struct nlattr *opt,
 	q->min_netlen = ~0;
 	q->min_adjlen = ~0;
 	return 0;
-
-nomem:
-	cake_destroy(sch);
-	return -ENOMEM;
 }
 
 static int cake_dump(struct Qdisc *sch, struct sk_buff *skb)
-- 
GitLab


From 3a4f6dba1eb98101abc012ef968a8b10dac1ce50 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 9 Dec 2021 10:50:58 -0800
Subject: [PATCH 2325/4878] inet_diag: fix kernel-infoleak for UDP sockets

[ Upstream commit 71ddeac8cd1d217744a0e060ff520e147c9328d1 ]

KMSAN reported a kernel-infoleak [1], that can exploited
by unpriv users.

After analysis it turned out UDP was not initializing
r->idiag_expires. Other users of inet_sk_diag_fill()
might make the same mistake in the future, so fix this
in inet_sk_diag_fill().

[1]
BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]
BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:156 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x69d/0x25c0 lib/iov_iter.c:670
 instrument_copy_to_user include/linux/instrumented.h:121 [inline]
 copyout lib/iov_iter.c:156 [inline]
 _copy_to_iter+0x69d/0x25c0 lib/iov_iter.c:670
 copy_to_iter include/linux/uio.h:155 [inline]
 simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519
 __skb_datagram_iter+0x2cb/0x1280 net/core/datagram.c:425
 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533
 skb_copy_datagram_msg include/linux/skbuff.h:3657 [inline]
 netlink_recvmsg+0x660/0x1c60 net/netlink/af_netlink.c:1974
 sock_recvmsg_nosec net/socket.c:944 [inline]
 sock_recvmsg net/socket.c:962 [inline]
 sock_read_iter+0x5a9/0x630 net/socket.c:1035
 call_read_iter include/linux/fs.h:2156 [inline]
 new_sync_read fs/read_write.c:400 [inline]
 vfs_read+0x1631/0x1980 fs/read_write.c:481
 ksys_read+0x28c/0x520 fs/read_write.c:619
 __do_sys_read fs/read_write.c:629 [inline]
 __se_sys_read fs/read_write.c:627 [inline]
 __x64_sys_read+0xdb/0x120 fs/read_write.c:627
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1126 [inline]
 netlink_dump+0x3d5/0x16a0 net/netlink/af_netlink.c:2245
 __netlink_dump_start+0xd1c/0xee0 net/netlink/af_netlink.c:2370
 netlink_dump_start include/linux/netlink.h:254 [inline]
 inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1343
 sock_diag_rcv_msg+0x24a/0x620
 netlink_rcv_skb+0x447/0x800 net/netlink/af_netlink.c:2491
 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:276
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x1095/0x1360 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x16f3/0x1870 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 sock_write_iter+0x594/0x690 net/socket.c:1057
 do_iter_readv_writev+0xa7f/0xc70
 do_iter_write+0x52c/0x1500 fs/read_write.c:851
 vfs_writev fs/read_write.c:924 [inline]
 do_writev+0x63f/0xe30 fs/read_write.c:967
 __do_sys_writev fs/read_write.c:1040 [inline]
 __se_sys_writev fs/read_write.c:1037 [inline]
 __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Bytes 68-71 of 312 are uninitialized
Memory access of size 312 starts at ffff88812ab54000
Data copied to user address 0000000020001440

CPU: 1 PID: 6365 Comm: syz-executor801 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 3c4d05c80567 ("inet_diag: Introduce the inet socket dumping routine")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20211209185058.53917-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/inet_diag.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 93474b1bea4e0..fa9f1de58df46 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -261,6 +261,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 	r->idiag_state = sk->sk_state;
 	r->idiag_timer = 0;
 	r->idiag_retrans = 0;
+	r->idiag_expires = 0;
 
 	if (inet_diag_msg_attrs_fill(sk, skb, r, ext,
 				     sk_user_ns(NETLINK_CB(cb->skb).sk),
@@ -314,9 +315,6 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 		r->idiag_retrans = icsk->icsk_probes_out;
 		r->idiag_expires =
 			jiffies_delta_to_msecs(sk->sk_timer.expires - jiffies);
-	} else {
-		r->idiag_timer = 0;
-		r->idiag_expires = 0;
 	}
 
 	if ((ext & (1 << (INET_DIAG_INFO - 1))) && handler->idiag_info_size) {
-- 
GitLab


From 12512bc8f25b8ba9795dfbae0e9ca57ff13fd542 Mon Sep 17 00:00:00 2001
From: Jie Wang <wangjie125@huawei.com>
Date: Fri, 10 Dec 2021 21:09:33 +0800
Subject: [PATCH 2326/4878] net: hns3: fix use-after-free bug in
 hclgevf_send_mbx_msg

[ Upstream commit 27cbf64a766e86f068ce6214f04c00ceb4db1af4 ]

Currently, the hns3_remove function firstly uninstall client instance,
and then uninstall acceletion engine device. The netdevice is freed in
client instance uninstall process, but acceletion engine device uninstall
process still use it to trace runtime information. This causes a use after
free problem.

So fixes it by check the instance register state to avoid use after free.

Fixes: d8355240cf8f ("net: hns3: add trace event support for PF/VF mailbox")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
index 5b2dcd97c1078..b8e5ca6700ed5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
@@ -109,7 +109,8 @@ int hclgevf_send_mbx_msg(struct hclgevf_dev *hdev,
 
 	memcpy(&req->msg, send_msg, sizeof(struct hclge_vf_to_pf_msg));
 
-	trace_hclge_vf_mbx_send(hdev, req);
+	if (test_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state))
+		trace_hclge_vf_mbx_send(hdev, req);
 
 	/* synchronous send */
 	if (need_resp) {
-- 
GitLab


From 5ba4dfb8b8a19d55811c399b9def7ffecfef559b Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Sat, 11 Dec 2021 10:11:30 -0700
Subject: [PATCH 2327/4878] selftests: Add duplicate config only for MD5 VRF
 tests

[ Upstream commit 7e0147592b5c4f9e2eb8c54a7857a56d4863f74e ]

Commit referenced below added configuration in the default VRF that
duplicates a VRF to check MD5 passwords are properly used and fail
when expected. That config should not be added all the time as it
can cause tests to pass that should not (by matching on default VRF
setup when it should not). Move the duplicate setup to a function
that is only called for the MD5 tests and add a cleanup function
to remove it after the MD5 tests.

Fixes: 5cad8bce26e0 ("fcnal-test: Add TCP MD5 tests for VRF")
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 26 +++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index a830358ba2496..9f771f7e57450 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -446,6 +446,22 @@ cleanup()
 	ip netns del ${NSC} >/dev/null 2>&1
 }
 
+cleanup_vrf_dup()
+{
+	ip link del ${NSA_DEV2} >/dev/null 2>&1
+	ip netns pids ${NSC} | xargs kill 2>/dev/null
+	ip netns del ${NSC} >/dev/null 2>&1
+}
+
+setup_vrf_dup()
+{
+	# some VRF tests use ns-C which has the same config as
+	# ns-B but for a device NOT in the VRF
+	create_ns ${NSC} "-" "-"
+	connect_ns ${NSA} ${NSA_DEV2} ${NSA_IP}/24 ${NSA_IP6}/64 \
+		   ${NSC} ${NSC_DEV} ${NSB_IP}/24 ${NSB_IP6}/64
+}
+
 setup()
 {
 	local with_vrf=${1}
@@ -475,12 +491,6 @@ setup()
 
 		ip -netns ${NSB} ro add ${VRF_IP}/32 via ${NSA_IP} dev ${NSB_DEV}
 		ip -netns ${NSB} -6 ro add ${VRF_IP6}/128 via ${NSA_IP6} dev ${NSB_DEV}
-
-		# some VRF tests use ns-C which has the same config as
-		# ns-B but for a device NOT in the VRF
-		create_ns ${NSC} "-" "-"
-		connect_ns ${NSA} ${NSA_DEV2} ${NSA_IP}/24 ${NSA_IP6}/64 \
-			   ${NSC} ${NSC_DEV} ${NSB_IP}/24 ${NSB_IP6}/64
 	else
 		ip -netns ${NSA} ro add ${NSB_LO_IP}/32 via ${NSB_IP} dev ${NSA_DEV}
 		ip -netns ${NSA} ro add ${NSB_LO_IP6}/128 via ${NSB_IP6} dev ${NSA_DEV}
@@ -1177,7 +1187,9 @@ ipv4_tcp_vrf()
 	log_test_addr ${a} $? 1 "Global server, local connection"
 
 	# run MD5 tests
+	setup_vrf_dup
 	ipv4_tcp_md5
+	cleanup_vrf_dup
 
 	#
 	# enable VRF global server
@@ -2656,7 +2668,9 @@ ipv6_tcp_vrf()
 	log_test_addr ${a} $? 1 "Global server, local connection"
 
 	# run MD5 tests
+	setup_vrf_dup
 	ipv6_tcp_md5
+	cleanup_vrf_dup
 
 	#
 	# enable VRF global server
-- 
GitLab


From 08896ecfffc33eaffabe8f01ec7ba9ae219b3b5d Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Sat, 11 Dec 2021 10:21:08 -0700
Subject: [PATCH 2328/4878] selftests: Fix raw socket bind tests with VRF

[ Upstream commit 0f108ae4452025fef529671998f6c7f1c4526790 ]

Commit referenced below added negative socket bind tests for VRF. The
socket binds should fail since the address to bind to is in a VRF yet
the socket is not bound to the VRF or a device within it. Update the
expected return code to check for 1 (bind failure) so the test passes
when the bind fails as expected. Add a 'show_hint' comment to explain
why the bind is expected to fail.

Fixes: 75b2b2b3db4c ("selftests: Add ipv4 address bind tests to fcnal-test")
Reported-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 9f771f7e57450..dd67004a1d83a 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -1747,8 +1747,9 @@ ipv4_addr_bind_vrf()
 	for a in ${NSA_IP} ${VRF_IP}
 	do
 		log_start
+		show_hint "Socket not bound to VRF, but address is in VRF"
 		run_cmd nettest -s -R -P icmp -l ${a} -b
-		log_test_addr ${a} $? 0 "Raw socket bind to local address"
+		log_test_addr ${a} $? 1 "Raw socket bind to local address"
 
 		log_start
 		run_cmd nettest -s -R -P icmp -l ${a} -d ${NSA_DEV} -b
-- 
GitLab


From dfff1d5e85fff5702f7b28a8a18a26f88d3e6883 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Sat, 11 Dec 2021 11:26:16 -0700
Subject: [PATCH 2329/4878] selftests: Fix IPv6 address bind tests

[ Upstream commit 28a2686c185e84b6aa6a4d9c9a972360eb7ca266 ]

IPv6 allows binding a socket to a device then binding to an address
not on the device (__inet6_bind -> ipv6_chk_addr with strict flag
not set). Update the bind tests to reflect legacy behavior.

Fixes: 34d0302ab861 ("selftests: Add ipv6 address bind tests to fcnal-test")
Reported-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/fcnal-test.sh | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index dd67004a1d83a..ace976d891252 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -3366,11 +3366,14 @@ ipv6_addr_bind_novrf()
 	run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
 	log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
 
+	# Sadly, the kernel allows binding a socket to a device and then
+	# binding to an address not on the device. So this test passes
+	# when it really should not
 	a=${NSA_LO_IP6}
 	log_start
-	show_hint "Should fail with 'Cannot assign requested address'"
-	run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
-	log_test_addr ${a} $? 1 "TCP socket bind to out of scope local address"
+	show_hint "Tecnically should fail since address is not on device but kernel allows"
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to out of scope local address"
 }
 
 ipv6_addr_bind_vrf()
@@ -3411,10 +3414,15 @@ ipv6_addr_bind_vrf()
 	run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
 	log_test_addr ${a} $? 0 "TCP socket bind to local address with device bind"
 
+	# Sadly, the kernel allows binding a socket to a device and then
+	# binding to an address not on the device. The only restriction
+	# is that the address is valid in the L3 domain. So this test
+	# passes when it really should not
 	a=${VRF_IP6}
 	log_start
-	run_cmd nettest -6 -s -l ${a} -d ${NSA_DEV} -t1 -b
-	log_test_addr ${a} $? 1 "TCP socket bind to VRF address with device bind"
+	show_hint "Tecnically should fail since address is not on device but kernel allows"
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to VRF address with device bind"
 
 	a=${NSA_LO_IP6}
 	log_start
-- 
GitLab


From be32c8a788871b9668e559630ccadd8d2cc54068 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Thu, 25 Nov 2021 15:44:38 +0000
Subject: [PATCH 2330/4878] dmaengine: st_fdma: fix MODULE_ALIAS

[ Upstream commit 822c9f2b833c53fc67e8adf6f63ecc3ea24d502c ]

modprobe can't handle spaces in aliases.

Fixes: 6b4cd727eaf1 ("dmaengine: st_fdma: Add STMicroelectronics FDMA engine driver support")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20211125154441.2626214-1-hi@alyssa.is
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/st_fdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/st_fdma.c b/drivers/dma/st_fdma.c
index 962b6e05287b5..d95c421877fb7 100644
--- a/drivers/dma/st_fdma.c
+++ b/drivers/dma/st_fdma.c
@@ -874,4 +874,4 @@ MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("STMicroelectronics FDMA engine driver");
 MODULE_AUTHOR("Ludovic.barre <Ludovic.barre@st.com>");
 MODULE_AUTHOR("Peter Griffin <peter.griffin@linaro.org>");
-MODULE_ALIAS("platform: " DRIVER_NAME);
+MODULE_ALIAS("platform:" DRIVER_NAME);
-- 
GitLab


From 81fbdd45652d8605a029e78ef14a6aaa529c4e72 Mon Sep 17 00:00:00 2001
From: Davide Caratti <dcaratti@redhat.com>
Date: Fri, 10 Dec 2021 17:42:47 +0100
Subject: [PATCH 2331/4878] net/sched: sch_ets: don't remove idle classes from
 the round-robin list

[ Upstream commit c062f2a0b04d86c5b8c9d973bea43493eaca3d32 ]

Shuang reported that the following script:

 1) tc qdisc add dev ddd0 handle 10: parent 1: ets bands 8 strict 4 priomap 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
 2) mausezahn ddd0  -A 10.10.10.1 -B 10.10.10.2 -c 0 -a own -b 00:c1:a0:c1:a0:00 -t udp &
 3) tc qdisc change dev ddd0 handle 10: ets bands 4 strict 2 quanta 2500 2500 priomap 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3

crashes systematically when line 2) is commented:

 list_del corruption, ffff8e028404bd30->next is LIST_POISON1 (dead000000000100)
 ------------[ cut here ]------------
 kernel BUG at lib/list_debug.c:47!
 invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
 CPU: 0 PID: 954 Comm: tc Not tainted 5.16.0-rc4+ #478
 Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
 RIP: 0010:__list_del_entry_valid.cold.1+0x12/0x47
 Code: fe ff 0f 0b 48 89 c1 4c 89 c6 48 c7 c7 08 42 1b 87 e8 1d c5 fe ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 98 42 1b 87 e8 09 c5 fe ff <0f> 0b 48 c7 c7 48 43 1b 87 e8 fb c4 fe ff 0f 0b 48 89 f2 48 89 fe
 RSP: 0018:ffffae46807a3888 EFLAGS: 00010246
 RAX: 000000000000004e RBX: 0000000000000007 RCX: 0000000000000202
 RDX: 0000000000000000 RSI: ffffffff871ac536 RDI: 00000000ffffffff
 RBP: ffffae46807a3a10 R08: 0000000000000000 R09: c0000000ffff7fff
 R10: 0000000000000001 R11: ffffae46807a36a8 R12: ffff8e028404b800
 R13: ffff8e028404bd30 R14: dead000000000100 R15: ffff8e02fafa2400
 FS:  00007efdc92e4480(0000) GS:ffff8e02fb600000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000682f48 CR3: 00000001058be000 CR4: 0000000000350ef0
 Call Trace:
  <TASK>
  ets_qdisc_change+0x58b/0xa70 [sch_ets]
  tc_modify_qdisc+0x323/0x880
  rtnetlink_rcv_msg+0x169/0x4a0
  netlink_rcv_skb+0x50/0x100
  netlink_unicast+0x1a5/0x280
  netlink_sendmsg+0x257/0x4d0
  sock_sendmsg+0x5b/0x60
  ____sys_sendmsg+0x1f2/0x260
  ___sys_sendmsg+0x7c/0xc0
  __sys_sendmsg+0x57/0xa0
  do_syscall_64+0x3a/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae
 RIP: 0033:0x7efdc8031338
 Code: 89 02 48 c7 c0 ff ff ff ff eb b5 0f 1f 80 00 00 00 00 f3 0f 1e fa 48 8d 05 25 43 2c 00 8b 00 85 c0 75 17 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 41 54 41 89 d4 55
 RSP: 002b:00007ffdf1ce9828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
 RAX: ffffffffffffffda RBX: 0000000061b37a97 RCX: 00007efdc8031338
 RDX: 0000000000000000 RSI: 00007ffdf1ce9890 RDI: 0000000000000003
 RBP: 0000000000000000 R08: 0000000000000001 R09: 000000000078a940
 R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000001
 R13: 0000000000688880 R14: 0000000000000000 R15: 0000000000000000
  </TASK>
 Modules linked in: sch_ets sch_tbf dummy rfkill iTCO_wdt iTCO_vendor_support intel_rapl_msr intel_rapl_common joydev pcspkr i2c_i801 virtio_balloon i2c_smbus lpc_ich ip_tables xfs libcrc32c crct10dif_pclmul crc32_pclmul crc32c_intel serio_raw ghash_clmulni_intel ahci libahci libata virtio_blk virtio_console virtio_net net_failover failover sunrpc dm_mirror dm_region_hash dm_log dm_mod [last unloaded: sch_ets]
 ---[ end trace f35878d1912655c2 ]---
 RIP: 0010:__list_del_entry_valid.cold.1+0x12/0x47
 Code: fe ff 0f 0b 48 89 c1 4c 89 c6 48 c7 c7 08 42 1b 87 e8 1d c5 fe ff 0f 0b 48 89 fe 48 89 c2 48 c7 c7 98 42 1b 87 e8 09 c5 fe ff <0f> 0b 48 c7 c7 48 43 1b 87 e8 fb c4 fe ff 0f 0b 48 89 f2 48 89 fe
 RSP: 0018:ffffae46807a3888 EFLAGS: 00010246
 RAX: 000000000000004e RBX: 0000000000000007 RCX: 0000000000000202
 RDX: 0000000000000000 RSI: ffffffff871ac536 RDI: 00000000ffffffff
 RBP: ffffae46807a3a10 R08: 0000000000000000 R09: c0000000ffff7fff
 R10: 0000000000000001 R11: ffffae46807a36a8 R12: ffff8e028404b800
 R13: ffff8e028404bd30 R14: dead000000000100 R15: ffff8e02fafa2400
 FS:  00007efdc92e4480(0000) GS:ffff8e02fb600000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000682f48 CR3: 00000001058be000 CR4: 0000000000350ef0
 Kernel panic - not syncing: Fatal exception in interrupt
 Kernel Offset: 0x4e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
 ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---

we can remove 'q->classes[i].alist' only if DRR class 'i' was part of the
active list. In the ETS scheduler DRR classes belong to that list only if
the queue length is greater than zero: we need to test for non-zero value
of 'q->classes[i].qdisc->q.qlen' before removing from the list, similarly
to what has been done elsewhere in the ETS code.

Fixes: de6d25924c2a ("net/sched: sch_ets: don't peek at classes beyond 'nbands'")
Reported-by: Shuang Li <shuali@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_ets.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sched/sch_ets.c b/net/sched/sch_ets.c
index c34cb6e81d855..9c224872ef035 100644
--- a/net/sched/sch_ets.c
+++ b/net/sched/sch_ets.c
@@ -668,9 +668,9 @@ static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt,
 		}
 	}
 	for (i = q->nbands; i < oldbands; i++) {
-		qdisc_tree_flush_backlog(q->classes[i].qdisc);
-		if (i >= q->nstrict)
+		if (i >= q->nstrict && q->classes[i].qdisc->q.qlen)
 			list_del(&q->classes[i].alist);
+		qdisc_tree_flush_backlog(q->classes[i].qdisc);
 	}
 	q->nstrict = nstrict;
 	memcpy(q->prio2band, priomap, sizeof(priomap));
-- 
GitLab


From cac0fd4b9bd385b96b6548dcda7e22e03d2694b2 Mon Sep 17 00:00:00 2001
From: Hangbin Liu <liuhangbin@gmail.com>
Date: Mon, 13 Dec 2021 16:36:00 +0800
Subject: [PATCH 2332/4878] selftest/net/forwarding: declare NETIFS p9 p10

[ Upstream commit 71da1aec215290e249d09c44c768df859f3a3bba ]

The recent GRE selftests defined NUM_NETIFS=10. If the users copy
forwarding.config.sample to forwarding.config directly, they will get
error "Command line is not complete" when run the GRE tests, because
create_netif_veth() failed with no interface name defined.

Fix it by extending the NETIFS with p9 and p10.

Fixes: 2800f2485417 ("selftests: forwarding: Test multipath hashing on inner IP pkts for GRE tunnel")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/forwarding/forwarding.config.sample | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/forwarding/forwarding.config.sample b/tools/testing/selftests/net/forwarding/forwarding.config.sample
index e5e2fbeca22ec..e51def39fd801 100644
--- a/tools/testing/selftests/net/forwarding/forwarding.config.sample
+++ b/tools/testing/selftests/net/forwarding/forwarding.config.sample
@@ -13,6 +13,8 @@ NETIFS[p5]=veth4
 NETIFS[p6]=veth5
 NETIFS[p7]=veth6
 NETIFS[p8]=veth7
+NETIFS[p9]=veth8
+NETIFS[p10]=veth9
 
 # Port that does not have a cable connected.
 NETIF_NO_CABLE=eth8
-- 
GitLab


From 96bc86cac0a959ca59ed4f4594b298bb110f98ac Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 14 Dec 2021 09:41:26 +0800
Subject: [PATCH 2333/4878] drm/ast: potential dereference of null pointer

[ Upstream commit fea3fdf975dd9f3e5248afaab8fe023db313f005 ]

The return value of kzalloc() needs to be checked.
To avoid use of null pointer '&ast_state->base' in case of the
failure of alloc.

Fixes: f0adbc382b8b ("drm/ast: Allocate initial CRTC state of the correct size")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20211214014126.2211535-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/ast/ast_mode.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index a3c2f76668abe..d27f2840b9555 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -857,7 +857,10 @@ static void ast_crtc_reset(struct drm_crtc *crtc)
 	if (crtc->state)
 		crtc->funcs->atomic_destroy_state(crtc, crtc->state);
 
-	__drm_atomic_helper_crtc_reset(crtc, &ast_state->base);
+	if (ast_state)
+		__drm_atomic_helper_crtc_reset(crtc, &ast_state->base);
+	else
+		__drm_atomic_helper_crtc_reset(crtc, NULL);
 }
 
 static struct drm_crtc_state *
-- 
GitLab


From bef59d6a83d35613d0da7e02ee17954931c52f44 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 2 Dec 2021 15:26:25 +0200
Subject: [PATCH 2334/4878] mac80211: agg-tx: don't schedule_and_wake_txq()
 under sta->lock

[ Upstream commit 06c41bda0ea14aa7fba932a9613c4ee239682cf0 ]

When we call ieee80211_agg_start_txq(), that will in turn call
schedule_and_wake_txq(). Called from ieee80211_stop_tx_ba_cb()
this is done under sta->lock, which leads to certain circular
lock dependencies, as reported by Chris Murphy:
https://lore.kernel.org/r/CAJCQCtSXJ5qA4bqSPY=oLRMbv-irihVvP7A2uGutEbXQVkoNaw@mail.gmail.com

In general, ieee80211_agg_start_txq() is usually not called
with sta->lock held, only in this one place. But it's always
called with sta->ampdu_mlme.mtx held, and that's therefore
clearly sufficient.

Change ieee80211_stop_tx_ba_cb() to also call it without the
sta->lock held, by factoring it out of ieee80211_remove_tid_tx()
(which is only called in this one place).

This breaks the locking chain and makes it less likely that
we'll have similar locking chain problems in the future.

Fixes: ba8c3d6f16a1 ("mac80211: add an intermediate software queue implementation")
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211202152554.f519884c8784.I555fef8e67d93fff3d9a304886c4a9f8b322e591@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/agg-tx.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 407765ad9cc92..190f300d8923c 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -9,7 +9,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
  * Copyright(c) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2020 Intel Corporation
+ * Copyright (C) 2018 - 2021 Intel Corporation
  */
 
 #include <linux/ieee80211.h>
@@ -213,6 +213,8 @@ ieee80211_agg_start_txq(struct sta_info *sta, int tid, bool enable)
 	struct ieee80211_txq *txq = sta->sta.txq[tid];
 	struct txq_info *txqi;
 
+	lockdep_assert_held(&sta->ampdu_mlme.mtx);
+
 	if (!txq)
 		return;
 
@@ -290,7 +292,6 @@ static void ieee80211_remove_tid_tx(struct sta_info *sta, int tid)
 	ieee80211_assign_tid_tx(sta, tid, NULL);
 
 	ieee80211_agg_splice_finish(sta->sdata, tid);
-	ieee80211_agg_start_txq(sta, tid, false);
 
 	kfree_rcu(tid_tx, rcu_head);
 }
@@ -889,6 +890,7 @@ void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	bool send_delba = false;
+	bool start_txq = false;
 
 	ht_dbg(sdata, "Stopping Tx BA session for %pM tid %d\n",
 	       sta->sta.addr, tid);
@@ -906,10 +908,14 @@ void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
 		send_delba = true;
 
 	ieee80211_remove_tid_tx(sta, tid);
+	start_txq = true;
 
  unlock_sta:
 	spin_unlock_bh(&sta->lock);
 
+	if (start_txq)
+		ieee80211_agg_start_txq(sta, tid, false);
+
 	if (send_delba)
 		ieee80211_send_delba(sdata, sta->sta.addr, tid,
 			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
-- 
GitLab


From 03fd6ca05601820351d6d7304f24c26ff73b7dfd Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 29 Nov 2021 15:32:46 +0200
Subject: [PATCH 2335/4878] mac80211: fix lookup when adding AddBA extension
 element

[ Upstream commit 511ab0c1dfb260a6b17b8771109e8d63474473a7 ]

We should be doing the HE capabilities lookup based on the full
interface type so if P2P doesn't have HE but client has it doesn't
get confused. Fix that.

Fixes: 2ab45876756f ("mac80211: add support for the ADDBA extension element")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211129152938.010fc1d61137.If3a468145f29d670cb00a693bed559d8290ba693@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/agg-rx.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index cd4cf84a7f99f..6ef8ded4ec764 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -9,7 +9,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
  * Copyright(c) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2020 Intel Corporation
+ * Copyright (C) 2018-2021 Intel Corporation
  */
 
 /**
@@ -191,7 +191,8 @@ static void ieee80211_add_addbaext(struct ieee80211_sub_if_data *sdata,
 	sband = ieee80211_get_sband(sdata);
 	if (!sband)
 		return;
-	he_cap = ieee80211_get_he_iftype_cap(sband, sdata->vif.type);
+	he_cap = ieee80211_get_he_iftype_cap(sband,
+					     ieee80211_vif_type_p2p(&sdata->vif));
 	if (!he_cap)
 		return;
 
-- 
GitLab


From 67f4362ae286eb7a87d18d24f585c85bf9c7d694 Mon Sep 17 00:00:00 2001
From: Baowen Zheng <baowen.zheng@corigine.com>
Date: Mon, 13 Dec 2021 15:46:04 +0100
Subject: [PATCH 2336/4878] flow_offload: return EOPNOTSUPP for the unsupported
 mpls action type

[ Upstream commit 166b6a46b78bf8b9559a6620c3032f9fe492e082 ]

We need to return EOPNOTSUPP for the unsupported mpls action type when
setup the flow action.

In the original implement, we will return 0 for the unsupported mpls
action type, actually we do not setup it and the following actions
to the flow action entry.

Fixes: 9838b20a7fb2 ("net: sched: take rtnl lock in tc_setup_flow_action()")
Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/cls_api.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 8073657a0fd25..cb1331b357451 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3703,6 +3703,7 @@ int tc_setup_flow_action(struct flow_action *flow_action,
 				entry->mpls_mangle.ttl = tcf_mpls_ttl(act);
 				break;
 			default:
+				err = -EOPNOTSUPP;
 				goto err_out_locked;
 			}
 		} else if (is_tcf_skbedit_ptype(act)) {
-- 
GitLab


From 74dc97dfb276542f12746d706abef63364d816bb Mon Sep 17 00:00:00 2001
From: Hangyu Hua <hbh25y@gmail.com>
Date: Tue, 14 Dec 2021 18:46:59 +0800
Subject: [PATCH 2337/4878] rds: memory leak in __rds_conn_create()

[ Upstream commit 5f9562ebe710c307adc5f666bf1a2162ee7977c0 ]

__rds_conn_create() did not release conn->c_path when loop_trans != 0 and
trans->t_prefer_loopback != 0 and is_outgoing == 0.

Fixes: aced3ce57cd3 ("RDS tcp loopback connection can hang")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Reviewed-by: Sharath Srinivasan <sharath.srinivasan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rds/connection.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/rds/connection.c b/net/rds/connection.c
index a3bc4b54d4910..b4cc699c5fad3 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -253,6 +253,7 @@ static struct rds_connection *__rds_conn_create(struct net *net,
 				 * should end up here, but if it
 				 * does, reset/destroy the connection.
 				 */
+				kfree(conn->c_path);
 				kmem_cache_free(rds_conn_slab, conn);
 				conn = ERR_PTR(-EOPNOTSUPP);
 				goto out;
-- 
GitLab


From 222cebd995cdf11fe0d502749560f65e64990e55 Mon Sep 17 00:00:00 2001
From: Lang Yu <lang.yu@amd.com>
Date: Tue, 14 Dec 2021 15:25:54 +0800
Subject: [PATCH 2338/4878] drm/amd/pm: fix a potential gpu_metrics_table
 memory leak

[ Upstream commit aa464957f7e660abd554f2546a588f6533720e21 ]

Memory is allocated for gpu_metrics_table in renoir_init_smc_tables(),
but not freed in int smu_v12_0_fini_smc_tables(). Free it!

Fixes: 95868b85764a ("drm/amd/powerplay: add Renoir support for gpu metrics export")

Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c
index 7907c9e0b5dec..b938fd12da4d5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c
@@ -187,6 +187,9 @@ int smu_v12_0_fini_smc_tables(struct smu_context *smu)
 	kfree(smu_table->watermarks_table);
 	smu_table->watermarks_table = NULL;
 
+	kfree(smu_table->gpu_metrics_table);
+	smu_table->gpu_metrics_table = NULL;
+
 	return 0;
 }
 
-- 
GitLab


From 451f1eded7f56e93aaf52eb547ba97742d9c0e97 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Tue, 14 Dec 2021 15:16:02 -0800
Subject: [PATCH 2339/4878] mptcp: clear 'kern' flag from fallback sockets

[ Upstream commit d6692b3b97bdc165d150f4c1505751a323a80717 ]

The mptcp ULP extension relies on sk->sk_sock_kern being set correctly:
It prevents setsockopt(fd, IPPROTO_TCP, TCP_ULP, "mptcp", 6); from
working for plain tcp sockets (any userspace-exposed socket).

But in case of fallback, accept() can return a plain tcp sk.
In such case, sk is still tagged as 'kernel' and setsockopt will work.

This will crash the kernel, The subflow extension has a NULL ctx->conn
mptcp socket:

BUG: KASAN: null-ptr-deref in subflow_data_ready+0x181/0x2b0
Call Trace:
 tcp_data_ready+0xf8/0x370
 [..]

Fixes: cf7da0d66cc1 ("mptcp: Create SUBFLOW socket for incoming connections")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mptcp/protocol.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 3ca8b359e399a..8123c79e27913 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2149,7 +2149,7 @@ static struct sock *mptcp_accept(struct sock *sk, int flags, int *err,
 		 */
 		if (WARN_ON_ONCE(!new_mptcp_sock)) {
 			tcp_sk(newsk)->is_mptcp = 0;
-			return newsk;
+			goto out;
 		}
 
 		/* acquire the 2nd reference for the owning socket */
@@ -2174,6 +2174,8 @@ static struct sock *mptcp_accept(struct sock *sk, int flags, int *err,
 				MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK);
 	}
 
+out:
+	newsk->sk_kern_sock = kern;
 	return newsk;
 }
 
-- 
GitLab


From 12c1938870dcc0fc7906492b8f44d9bc54fda0b5 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 10 Dec 2021 09:55:29 -0700
Subject: [PATCH 2340/4878] soc/tegra: fuse: Fix bitwise vs. logical OR warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit a7083763619f7485ccdade160deb81737cf2732f ]

A new warning in clang points out two instances where boolean
expressions are being used with a bitwise OR instead of logical OR:

drivers/soc/tegra/fuse/speedo-tegra20.c:72:9: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
                reg = tegra_fuse_read_spare(i) |
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
                                               ||
drivers/soc/tegra/fuse/speedo-tegra20.c:72:9: note: cast one or both operands to int to silence this warning
drivers/soc/tegra/fuse/speedo-tegra20.c:87:9: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
                reg = tegra_fuse_read_spare(i) |
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
                                               ||
drivers/soc/tegra/fuse/speedo-tegra20.c:87:9: note: cast one or both operands to int to silence this warning
2 warnings generated.

The motivation for the warning is that logical operations short circuit
while bitwise operations do not.

In this instance, tegra_fuse_read_spare() is not semantically returning
a boolean, it is returning a bit value. Use u32 for its return type so
that it can be used with either bitwise or boolean operators without any
warnings.

Fixes: 25cd5a391478 ("ARM: tegra: Add speedo-based process identification")
Link: https://github.com/ClangBuiltLinux/linux/issues/1488
Suggested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/tegra/fuse/fuse-tegra.c | 2 +-
 drivers/soc/tegra/fuse/fuse.h       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index 94b60a692b515..4388a4a5e0919 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -260,7 +260,7 @@ static struct platform_driver tegra_fuse_driver = {
 };
 builtin_platform_driver(tegra_fuse_driver);
 
-bool __init tegra_fuse_read_spare(unsigned int spare)
+u32 __init tegra_fuse_read_spare(unsigned int spare)
 {
 	unsigned int offset = fuse->soc->info->spare + spare * 4;
 
diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h
index e057a58e20603..21887a57cf2c2 100644
--- a/drivers/soc/tegra/fuse/fuse.h
+++ b/drivers/soc/tegra/fuse/fuse.h
@@ -63,7 +63,7 @@ struct tegra_fuse {
 void tegra_init_revision(void);
 void tegra_init_apbmisc(void);
 
-bool __init tegra_fuse_read_spare(unsigned int spare);
+u32 __init tegra_fuse_read_spare(unsigned int spare);
 u32 __init tegra_fuse_read_early(unsigned int offset);
 
 u8 tegra_get_major_rev(void);
-- 
GitLab


From ddac50d04f348d880386d6f6f7639da6935ab907 Mon Sep 17 00:00:00 2001
From: Karen Sornek <karen.sornek@intel.com>
Date: Tue, 31 Aug 2021 13:16:35 +0200
Subject: [PATCH 2341/4878] igb: Fix removal of unicast MAC filters of VFs

[ Upstream commit 584af82154f56e6b2740160fcc84a2966d969e15 ]

Move checking condition of VF MAC filter before clearing
or adding MAC filter to VF to prevent potential blackout caused
by removal of necessary and working VF's MAC filter.

Fixes: 1b8b062a99dc ("igb: add VF trust infrastructure")
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 28 +++++++++++------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index d5432d1448c05..1662c0985eca4 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -7654,6 +7654,20 @@ static int igb_set_vf_mac_filter(struct igb_adapter *adapter, const int vf,
 	struct vf_mac_filter *entry = NULL;
 	int ret = 0;
 
+	if ((vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) &&
+	    !vf_data->trusted) {
+		dev_warn(&pdev->dev,
+			 "VF %d requested MAC filter but is administratively denied\n",
+			  vf);
+		return -EINVAL;
+	}
+	if (!is_valid_ether_addr(addr)) {
+		dev_warn(&pdev->dev,
+			 "VF %d attempted to set invalid MAC filter\n",
+			  vf);
+		return -EINVAL;
+	}
+
 	switch (info) {
 	case E1000_VF_MAC_FILTER_CLR:
 		/* remove all unicast MAC filters related to the current VF */
@@ -7667,20 +7681,6 @@ static int igb_set_vf_mac_filter(struct igb_adapter *adapter, const int vf,
 		}
 		break;
 	case E1000_VF_MAC_FILTER_ADD:
-		if ((vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) &&
-		    !vf_data->trusted) {
-			dev_warn(&pdev->dev,
-				 "VF %d requested MAC filter but is administratively denied\n",
-				 vf);
-			return -EINVAL;
-		}
-		if (!is_valid_ether_addr(addr)) {
-			dev_warn(&pdev->dev,
-				 "VF %d attempted to set invalid MAC filter\n",
-				 vf);
-			return -EINVAL;
-		}
-
 		/* try to find empty slot in the list */
 		list_for_each(pos, &adapter->vf_macs.l) {
 			entry = list_entry(pos, struct vf_mac_filter, l);
-- 
GitLab


From 74a16e062b23332d8db017ff4a41e16279c44411 Mon Sep 17 00:00:00 2001
From: Letu Ren <fantasquex@gmail.com>
Date: Sat, 13 Nov 2021 11:42:34 +0800
Subject: [PATCH 2342/4878] igbvf: fix double free in `igbvf_probe`

[ Upstream commit b6d335a60dc624c0d279333b22c737faa765b028 ]

In `igbvf_probe`, if register_netdev() fails, the program will go to
label err_hw_init, and then to label err_ioremap. In free_netdev() which
is just below label err_ioremap, there is `list_for_each_entry_safe` and
`netif_napi_del` which aims to delete all entries in `dev->napi_list`.
The program has added an entry `adapter->rx_ring->napi` which is added by
`netif_napi_add` in igbvf_alloc_queues(). However, adapter->rx_ring has
been freed below label err_hw_init. So this a UAF.

In terms of how to patch the problem, we can refer to igbvf_remove() and
delete the entry before `adapter->rx_ring`.

The KASAN logs are as follows:

[   35.126075] BUG: KASAN: use-after-free in free_netdev+0x1fd/0x450
[   35.127170] Read of size 8 at addr ffff88810126d990 by task modprobe/366
[   35.128360]
[   35.128643] CPU: 1 PID: 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14
[   35.129789] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[   35.131749] Call Trace:
[   35.132199]  dump_stack_lvl+0x59/0x7b
[   35.132865]  print_address_description+0x7c/0x3b0
[   35.133707]  ? free_netdev+0x1fd/0x450
[   35.134378]  __kasan_report+0x160/0x1c0
[   35.135063]  ? free_netdev+0x1fd/0x450
[   35.135738]  kasan_report+0x4b/0x70
[   35.136367]  free_netdev+0x1fd/0x450
[   35.137006]  igbvf_probe+0x121d/0x1a10 [igbvf]
[   35.137808]  ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf]
[   35.138751]  local_pci_probe+0x13c/0x1f0
[   35.139461]  pci_device_probe+0x37e/0x6c0
[   35.165526]
[   35.165806] Allocated by task 366:
[   35.166414]  ____kasan_kmalloc+0xc4/0xf0
[   35.167117]  foo_kmem_cache_alloc_trace+0x3c/0x50 [igbvf]
[   35.168078]  igbvf_probe+0x9c5/0x1a10 [igbvf]
[   35.168866]  local_pci_probe+0x13c/0x1f0
[   35.169565]  pci_device_probe+0x37e/0x6c0
[   35.179713]
[   35.179993] Freed by task 366:
[   35.180539]  kasan_set_track+0x4c/0x80
[   35.181211]  kasan_set_free_info+0x1f/0x40
[   35.181942]  ____kasan_slab_free+0x103/0x140
[   35.182703]  kfree+0xe3/0x250
[   35.183239]  igbvf_probe+0x1173/0x1a10 [igbvf]
[   35.184040]  local_pci_probe+0x13c/0x1f0

Fixes: d4e0fe01a38a0 (igbvf: add new driver to support 82576 virtual functions)
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Letu Ren <fantasquex@gmail.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igbvf/netdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 07c9e9e0546f5..fe8c0a26b7201 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2873,6 +2873,7 @@ static int igbvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return 0;
 
 err_hw_init:
+	netif_napi_del(&adapter->rx_ring->napi);
 	kfree(adapter->tx_ring);
 	kfree(adapter->rx_ring);
 err_sw_init:
-- 
GitLab


From 776ed8b36697e586f3e0187cb65d27e7f3ca7f47 Mon Sep 17 00:00:00 2001
From: Sasha Neftin <sasha.neftin@intel.com>
Date: Tue, 2 Nov 2021 09:20:06 +0200
Subject: [PATCH 2343/4878] igc: Fix typo in i225 LTR functions

[ Upstream commit 0182d1f3fa640888a2ed7e3f6df2fdb10adee7c8 ]

The LTR maximum value was incorrectly written using the scale from
the LTR minimum value. This would cause incorrect values to be sent,
in cases where the initial calculation lead to different min/max scales.

Fixes: 707abf069548 ("igc: Add initial LTR support")
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igc/igc_i225.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_i225.c b/drivers/net/ethernet/intel/igc/igc_i225.c
index 7ec04e48860c6..553d6bc78e6bd 100644
--- a/drivers/net/ethernet/intel/igc/igc_i225.c
+++ b/drivers/net/ethernet/intel/igc/igc_i225.c
@@ -636,7 +636,7 @@ s32 igc_set_ltr_i225(struct igc_hw *hw, bool link)
 		ltrv = rd32(IGC_LTRMAXV);
 		if (ltr_max != (ltrv & IGC_LTRMAXV_LTRV_MASK)) {
 			ltrv = IGC_LTRMAXV_LSNP_REQ | ltr_max |
-			       (scale_min << IGC_LTRMAXV_SCALE_SHIFT);
+			       (scale_max << IGC_LTRMAXV_SCALE_SHIFT);
 			wr32(IGC_LTRMAXV, ltrv);
 		}
 	}
-- 
GitLab


From 48e01e38818275a48a3e4e73d70fb2a418accc28 Mon Sep 17 00:00:00 2001
From: Robert Schlabbach <robert_s@gmx.net>
Date: Tue, 26 Oct 2021 02:24:48 +0200
Subject: [PATCH 2344/4878] ixgbe: Document how to enable NBASE-T support

[ Upstream commit 271225fd57c2f1e0b3f8826df51be6c634affefe ]

Commit a296d665eae1 ("ixgbe: Add ethtool support to enable 2.5 and 5.0
Gbps support") introduced suppression of the advertisement of NBASE-T
speeds by default, according to Todd Fujinaka to accommodate customers
with network switches which could not cope with advertised NBASE-T
speeds, as posted in the E1000-devel mailing list:

https://sourceforge.net/p/e1000/mailman/message/37106269/

However, the suppression was not documented at all, nor was how to
enable NBASE-T support.

Properly document the NBASE-T suppression and how to enable NBASE-T
support.

Fixes: a296d665eae1 ("ixgbe: Add ethtool support to enable 2.5 and 5.0 Gbps support")
Reported-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../device_drivers/ethernet/intel/ixgbe.rst      | 16 ++++++++++++++++
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c    |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst b/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst
index f1d5233e5e510..0a233b17c664e 100644
--- a/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst
+++ b/Documentation/networking/device_drivers/ethernet/intel/ixgbe.rst
@@ -440,6 +440,22 @@ NOTE: For 82599-based network connections, if you are enabling jumbo frames in
 a virtual function (VF), jumbo frames must first be enabled in the physical
 function (PF). The VF MTU setting cannot be larger than the PF MTU.
 
+NBASE-T Support
+---------------
+The ixgbe driver supports NBASE-T on some devices. However, the advertisement
+of NBASE-T speeds is suppressed by default, to accommodate broken network
+switches which cannot cope with advertised NBASE-T speeds. Use the ethtool
+command to enable advertising NBASE-T speeds on devices which support it::
+
+  ethtool -s eth? advertise 0x1800000001028
+
+On Linux systems with INTERFACES(5), this can be specified as a pre-up command
+in /etc/network/interfaces so that the interface is always brought up with
+NBASE-T support, e.g.::
+
+  iface eth? inet dhcp
+       pre-up ethtool -s eth? advertise 0x1800000001028 || true
+
 Generic Receive Offload, aka GRO
 --------------------------------
 The driver supports the in-kernel software implementation of GRO. GRO has
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index ffe322136c584..a3a02e2f92f64 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5532,6 +5532,10 @@ static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw)
 	if (!speed && hw->mac.ops.get_link_capabilities) {
 		ret = hw->mac.ops.get_link_capabilities(hw, &speed,
 							&autoneg);
+		/* remove NBASE-T speeds from default autonegotiation
+		 * to accommodate broken network switches in the field
+		 * which cannot cope with advertised NBASE-T speeds
+		 */
 		speed &= ~(IXGBE_LINK_SPEED_5GB_FULL |
 			   IXGBE_LINK_SPEED_2_5GB_FULL);
 	}
-- 
GitLab


From d3e1f54508f1cc2a0d82f37cb2b301b7dcc4f5bb Mon Sep 17 00:00:00 2001
From: Cyril Novikov <cnovikov@lynx.com>
Date: Mon, 1 Nov 2021 18:39:36 -0700
Subject: [PATCH 2345/4878] ixgbe: set X550 MDIO speed before talking to PHY

[ Upstream commit bf0a375055bd1afbbf02a0ef45f7655da7b71317 ]

The MDIO bus speed must be initialized before talking to the PHY the first
time in order to avoid talking to it using a speed that the PHY doesn't
support.

This fixes HW initialization error -17 (IXGBE_ERR_PHY_ADDR_INVALID) on
Denverton CPUs (a.k.a. the Atom C3000 family) on ports with a 10Gb network
plugged in. On those devices, HLREG0[MDCSPD] resets to 1, which combined
with the 10Gb network results in a 24MHz MDIO speed, which is apparently
too fast for the connected PHY. PHY register reads over MDIO bus return
garbage, leading to initialization failure.

Reproduced with Linux kernel 4.19 and 5.15-rc7. Can be reproduced using
the following setup:

* Use an Atom C3000 family system with at least one X552 LAN on the SoC
* Disable PXE or other BIOS network initialization if possible
  (the interface must not be initialized before Linux boots)
* Connect a live 10Gb Ethernet cable to an X550 port
* Power cycle (not reset, doesn't always work) the system and boot Linux
* Observe: ixgbe interfaces w/ 10GbE cables plugged in fail with error -17

Fixes: e84db7272798 ("ixgbe: Introduce function to control MDIO speed")
Signed-off-by: Cyril Novikov <cnovikov@lynx.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index 5e339afa682a6..37f2bc6de4b65 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -3405,6 +3405,9 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw)
 	/* flush pending Tx transactions */
 	ixgbe_clear_tx_pending(hw);
 
+	/* set MDIO speed before talking to the PHY in case it's the 1st time */
+	ixgbe_set_mdio_speed(hw);
+
 	/* PHY ops must be identified and initialized prior to reset */
 	status = hw->phy.ops.init(hw);
 	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED ||
-- 
GitLab


From 1a34fb9e2bf3029f7c0882069d67ff69cbd645d8 Mon Sep 17 00:00:00 2001
From: Haimin Zhang <tcs.kernel@gmail.com>
Date: Wed, 15 Dec 2021 19:15:30 +0800
Subject: [PATCH 2346/4878] netdevsim: Zero-initialize memory for new map's
 value in function nsim_bpf_map_alloc

[ Upstream commit 481221775d53d6215a6e5e9ce1cce6d2b4ab9a46 ]

Zero-initialize memory for new map's value in function nsim_bpf_map_alloc
since it may cause a potential kernel information leak issue, as follows:
1. nsim_bpf_map_alloc calls nsim_map_alloc_elem to allocate elements for
a new map.
2. nsim_map_alloc_elem uses kmalloc to allocate map's value, but doesn't
zero it.
3. A user application can use IOCTL BPF_MAP_LOOKUP_ELEM to get specific
element's information in the map.
4. The kernel function map_lookup_elem will call bpf_map_copy_value to get
the information allocated at step-2, then use copy_to_user to copy to the
user buffer.
This can only leak information for an array map.

Fixes: 395cacb5f1a0 ("netdevsim: bpf: support fake map offload")
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Haimin Zhang <tcs.kernel@gmail.com>
Link: https://lore.kernel.org/r/20211215111530.72103-1-tcs.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/netdevsim/bpf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c
index 90aafb56f1409..a438202129323 100644
--- a/drivers/net/netdevsim/bpf.c
+++ b/drivers/net/netdevsim/bpf.c
@@ -514,6 +514,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap)
 				goto err_free;
 			key = nmap->entry[i].key;
 			*key = i;
+			memset(nmap->entry[i].value, 0, offmap->map.value_size);
 		}
 	}
 
-- 
GitLab


From 7da349f07e457cad135df0920a3f670e423fb5e9 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Wed, 15 Dec 2021 09:39:37 -0500
Subject: [PATCH 2347/4878] net/packet: rx_owner_map depends on pg_vec

[ Upstream commit ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 ]

Packet sockets may switch ring versions. Avoid misinterpreting state
between versions, whose fields share a union. rx_owner_map is only
allocated with a packet ring (pg_vec) and both are swapped together.
If pg_vec is NULL, meaning no packet ring was allocated, then neither
was rx_owner_map. And the field may be old state from a tpacket_v3.

Fixes: 61fad6816fc1 ("net/packet: tpacket_rcv: avoid a producer race condition")
Reported-by: Syzbot <syzbot+1ac0994a0a0c55151121@syzkaller.appspotmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20211215143937.106178-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/packet/af_packet.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 08144559eed56..f78097aa403a8 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4461,9 +4461,10 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
 	}
 
 out_free_pg_vec:
-	bitmap_free(rx_owner_map);
-	if (pg_vec)
+	if (pg_vec) {
+		bitmap_free(rx_owner_map);
 		free_pg_vec(pg_vec, order, req->tp_block_nr);
+	}
 out:
 	return err;
 }
-- 
GitLab


From 734a3f3106053ee41cecae2a995b3d4d0c246764 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 15 Dec 2021 22:37:31 +0800
Subject: [PATCH 2348/4878] sfc_ef100: potential dereference of null pointer

[ Upstream commit 407ecd1bd726f240123f704620d46e285ff30dd9 ]

The return value of kmalloc() needs to be checked.
To avoid use in efx_nic_update_stats() in case of the failure of alloc.

Fixes: b593b6f1b492 ("sfc_ef100: statistics gathering")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sfc/ef100_nic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c
index 3148fe7703564..cb6897c2193c2 100644
--- a/drivers/net/ethernet/sfc/ef100_nic.c
+++ b/drivers/net/ethernet/sfc/ef100_nic.c
@@ -597,6 +597,9 @@ static size_t ef100_update_stats(struct efx_nic *efx,
 	ef100_common_stat_mask(mask);
 	ef100_ethtool_stat_mask(mask);
 
+	if (!mc_stats)
+		return 0;
+
 	efx_nic_copy_stats(efx, mc_stats);
 	efx_nic_update_stats(ef100_stat_desc, EF100_STAT_COUNT, mask,
 			     stats, mc_stats, false);
-- 
GitLab


From 337bb7bf7c31e7a4a883054775db169e20e3723b Mon Sep 17 00:00:00 2001
From: Gal Pressman <gal@nvidia.com>
Date: Thu, 16 Dec 2021 11:28:25 +0200
Subject: [PATCH 2349/4878] net: Fix double 0x prefix print in SKB dump

[ Upstream commit 8a03ef676ade55182f9b05115763aeda6dc08159 ]

When printing netdev features %pNF already takes care of the 0x prefix,
remove the explicit one.

Fixes: 6413139dfc64 ("skbuff: increase verbosity when dumping skb data")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/skbuff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 825e6b9880030..0215ae898e836 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -769,7 +769,7 @@ void skb_dump(const char *level, const struct sk_buff *skb, bool full_pkt)
 	       ntohs(skb->protocol), skb->pkt_type, skb->skb_iif);
 
 	if (dev)
-		printk("%sdev name=%s feat=0x%pNF\n",
+		printk("%sdev name=%s feat=%pNF\n",
 		       level, dev->name, &dev->features);
 	if (sk)
 		printk("%ssk family=%hu type=%u proto=%u\n",
-- 
GitLab


From d1765f984c99df2260bea3d924810bff1a9fa93c Mon Sep 17 00:00:00 2001
From: "D. Wythe" <alibuda@linux.alibaba.com>
Date: Wed, 15 Dec 2021 20:29:21 +0800
Subject: [PATCH 2350/4878] net/smc: Prevent smc_release() from long blocking
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 5c15b3123f65f8fbb1b445d9a7e8812e0e435df2 ]

In nginx/wrk benchmark, there's a hung problem with high probability
on case likes that: (client will last several minutes to exit)

server: smc_run nginx

client: smc_run wrk -c 10000 -t 1 http://server

Client hangs with the following backtrace:

0 [ffffa7ce8Of3bbf8] __schedule at ffffffff9f9eOd5f
1 [ffffa7ce8Of3bc88] schedule at ffffffff9f9eløe6
2 [ffffa7ce8Of3bcaO] schedule_timeout at ffffffff9f9e3f3c
3 [ffffa7ce8Of3bd2O] wait_for_common at ffffffff9f9el9de
4 [ffffa7ce8Of3bd8O] __flush_work at ffffffff9fOfeOl3
5 [ffffa7ce8øf3bdfO] smc_release at ffffffffcO697d24 [smc]
6 [ffffa7ce8Of3be2O] __sock_release at ffffffff9f8O2e2d
7 [ffffa7ce8Of3be4ø] sock_close at ffffffff9f8ø2ebl
8 [ffffa7ce8øf3be48] __fput at ffffffff9f334f93
9 [ffffa7ce8Of3be78] task_work_run at ffffffff9flOlff5
10 [ffffa7ce8Of3beaO] do_exit at ffffffff9fOe5Ol2
11 [ffffa7ce8Of3bflO] do_group_exit at ffffffff9fOe592a
12 [ffffa7ce8Of3bf38] __x64_sys_exit_group at ffffffff9fOe5994
13 [ffffa7ce8Of3bf4O] do_syscall_64 at ffffffff9f9d4373
14 [ffffa7ce8Of3bfsO] entry_SYSCALL_64_after_hwframe at ffffffff9fa0007c

This issue dues to flush_work(), which is used to wait for
smc_connect_work() to finish in smc_release(). Once lots of
smc_connect_work() was pending or all executing work dangling,
smc_release() has to block until one worker comes to free, which
is equivalent to wait another smc_connnect_work() to finish.

In order to fix this, There are two changes:

1. For those idle smc_connect_work(), cancel it from the workqueue; for
   executing smc_connect_work(), waiting for it to finish. For that
   purpose, replace flush_work() with cancel_work_sync().

2. Since smc_connect() hold a reference for passive closing, if
   smc_connect_work() has been cancelled, release the reference.

Fixes: 24ac3a08e658 ("net/smc: rebuild nonblocking connect")
Reported-by: Tony Lu <tonylu@linux.alibaba.com>
Tested-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Link: https://lore.kernel.org/r/1639571361-101128-1-git-send-email-alibuda@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/af_smc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index d324a12c26cd9..99b902e410c49 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -191,7 +191,9 @@ static int smc_release(struct socket *sock)
 	/* cleanup for a dangling non-blocking connect */
 	if (smc->connect_nonblock && sk->sk_state == SMC_INIT)
 		tcp_abort(smc->clcsock->sk, ECONNABORTED);
-	flush_work(&smc->connect_work);
+
+	if (cancel_work_sync(&smc->connect_work))
+		sock_put(&smc->sk); /* sock_hold in smc_connect for passive closing */
 
 	if (sk->sk_state == SMC_LISTEN)
 		/* smc_close_non_accepted() is called and acquires
-- 
GitLab


From 6e1011cd183faae8daff275c72444edcdfe0d473 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 15 Dec 2021 12:24:49 -0800
Subject: [PATCH 2351/4878] net: systemport: Add global locking for descriptor
 lifecycle

[ Upstream commit 8b8e6e782456f1ce02a7ae914bbd5b1053f0b034 ]

The descriptor list is a shared resource across all of the transmit queues, and
the locking mechanism used today only protects concurrency across a given
transmit queue between the transmit and reclaiming. This creates an opportunity
for the SYSTEMPORT hardware to work on corrupted descriptors if we have
multiple producers at once which is the case when using multiple transmit
queues.

This was particularly noticeable when using multiple flows/transmit queues and
it showed up in interesting ways in that UDP packets would get a correct UDP
header checksum being calculated over an incorrect packet length. Similarly TCP
packets would get an equally correct checksum computed by the hardware over an
incorrect packet length.

The SYSTEMPORT hardware maintains an internal descriptor list that it re-arranges
when the driver produces a new descriptor anytime it writes to the
WRITE_PORT_{HI,LO} registers, there is however some delay in the hardware to
re-organize its descriptors and it is possible that concurrent TX queues
eventually break this internal allocation scheme to the point where the
length/status part of the descriptor gets used for an incorrect data buffer.

The fix is to impose a global serialization for all TX queues in the short
section where we are writing to the WRITE_PORT_{HI,LO} registers which solves
the corruption even with multiple concurrent TX queues being used.

Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211215202450.4086240-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bcmsysport.c | 5 ++++-
 drivers/net/ethernet/broadcom/bcmsysport.h | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 0404aafd5ce56..1a703b95208b0 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -1304,11 +1304,11 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	struct device *kdev = &priv->pdev->dev;
 	struct bcm_sysport_tx_ring *ring;
+	unsigned long flags, desc_flags;
 	struct bcm_sysport_cb *cb;
 	struct netdev_queue *txq;
 	u32 len_status, addr_lo;
 	unsigned int skb_len;
-	unsigned long flags;
 	dma_addr_t mapping;
 	u16 queue;
 	int ret;
@@ -1368,8 +1368,10 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb,
 	ring->desc_count--;
 
 	/* Ports are latched, so write upper address first */
+	spin_lock_irqsave(&priv->desc_lock, desc_flags);
 	tdma_writel(priv, len_status, TDMA_WRITE_PORT_HI(ring->index));
 	tdma_writel(priv, addr_lo, TDMA_WRITE_PORT_LO(ring->index));
+	spin_unlock_irqrestore(&priv->desc_lock, desc_flags);
 
 	/* Check ring space and update SW control flow */
 	if (ring->desc_count == 0)
@@ -2008,6 +2010,7 @@ static int bcm_sysport_open(struct net_device *dev)
 	}
 
 	/* Initialize both hardware and software ring */
+	spin_lock_init(&priv->desc_lock);
 	for (i = 0; i < dev->num_tx_queues; i++) {
 		ret = bcm_sysport_init_tx_ring(priv, i);
 		if (ret) {
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h
index 3a5cb6f128f57..1276e330e9d03 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.h
+++ b/drivers/net/ethernet/broadcom/bcmsysport.h
@@ -742,6 +742,7 @@ struct bcm_sysport_priv {
 	int			wol_irq;
 
 	/* Transmit rings */
+	spinlock_t		desc_lock;
 	struct bcm_sysport_tx_ring *tx_rings;
 
 	/* Receive queue */
-- 
GitLab


From 6f46c59e60b64620d5d386c8ee2eaa11ebe3b595 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 16 Dec 2021 03:17:41 -0800
Subject: [PATCH 2352/4878] sit: do not call ipip6_dev_free() from
 sit_init_net()

[ Upstream commit e28587cc491ef0f3c51258fdc87fbc386b1d4c59 ]

ipip6_dev_free is sit dev->priv_destructor, already called
by register_netdevice() if something goes wrong.

Alternative would be to make ipip6_dev_free() robust against
multiple invocations, but other drivers do not implement this
strategy.

syzbot reported:

dst_release underflow
WARNING: CPU: 0 PID: 5059 at net/core/dst.c:173 dst_release+0xd8/0xe0 net/core/dst.c:173
Modules linked in:
CPU: 1 PID: 5059 Comm: syz-executor.4 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dst_release+0xd8/0xe0 net/core/dst.c:173
Code: 4c 89 f2 89 d9 31 c0 5b 41 5e 5d e9 da d5 44 f9 e8 1d 90 5f f9 c6 05 87 48 c6 05 01 48 c7 c7 80 44 99 8b 31 c0 e8 e8 67 29 f9 <0f> 0b eb 85 0f 1f 40 00 53 48 89 fb e8 f7 8f 5f f9 48 83 c3 a8 48
RSP: 0018:ffffc9000aa5faa0 EFLAGS: 00010246
RAX: d6894a925dd15a00 RBX: 00000000ffffffff RCX: 0000000000040000
RDX: ffffc90005e19000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffffff816a1f42 R09: ffffed1017344f2c
R10: ffffed1017344f2c R11: 0000000000000000 R12: 0000607f462b1358
R13: 1ffffffff1bfd305 R14: ffffe8ffffcb1358 R15: dffffc0000000000
FS:  00007f66c71a2700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f88aaed5058 CR3: 0000000023e0f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dst_cache_destroy+0x107/0x1e0 net/core/dst_cache.c:160
 ipip6_dev_free net/ipv6/sit.c:1414 [inline]
 sit_init_net+0x229/0x550 net/ipv6/sit.c:1936
 ops_init+0x313/0x430 net/core/net_namespace.c:140
 setup_net+0x35b/0x9d0 net/core/net_namespace.c:326
 copy_net_ns+0x359/0x5c0 net/core/net_namespace.c:470
 create_new_namespaces+0x4ce/0xa00 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x11e/0x180 kernel/nsproxy.c:226
 ksys_unshare+0x57d/0xb50 kernel/fork.c:3075
 __do_sys_unshare kernel/fork.c:3146 [inline]
 __se_sys_unshare kernel/fork.c:3144 [inline]
 __x64_sys_unshare+0x34/0x40 kernel/fork.c:3144
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f66c882ce99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f66c71a2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f66c893ff60 RCX: 00007f66c882ce99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000048040200
RBP: 00007f66c8886ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6634832f R14: 00007f66c71a2300 R15: 0000000000022000
 </TASK>

Fixes: cf124db566e6 ("net: Fix inconsistent teardown and release of private netdev state.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20211216111741.1387540-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/sit.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index a6a3d759246ec..bab0e99f6e356 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1924,7 +1924,6 @@ static int __net_init sit_init_net(struct net *net)
 	return 0;
 
 err_reg_dev:
-	ipip6_dev_free(sitn->fb_tunnel_dev);
 	free_netdev(sitn->fb_tunnel_dev);
 err_alloc_dev:
 	return err;
-- 
GitLab


From fcf9194d366c5c2e903c4f0f594d6bffbd92da8e Mon Sep 17 00:00:00 2001
From: Martin KaFai Lau <kafai@fb.com>
Date: Thu, 16 Dec 2021 11:16:30 -0800
Subject: [PATCH 2353/4878] bpf, selftests: Fix racing issue in
 btf_skc_cls_ingress test

[ Upstream commit c2fcbf81c332b42382a0c439bfe2414a241e4f5b ]

The libbpf CI reported occasional failure in btf_skc_cls_ingress:

  test_syncookie:FAIL:Unexpected syncookie states gen_cookie:80326634 recv_cookie:0
  bpf prog error at line 97

"error at line 97" means the bpf prog cannot find the listening socket
when the final ack is received.  It then skipped processing
the syncookie in the final ack which then led to "recv_cookie:0".

The problem is the userspace program did not do accept() and went
ahead to close(listen_fd) before the kernel (and the bpf prog) had
a chance to process the final ack.

The fix is to add accept() call so that the userspace will wait for
the kernel to finish processing the final ack first before close()-ing
everything.

Fixes: 9a856cae2217 ("bpf: selftest: Add test_btf_skc_cls_ingress")
Reported-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211216191630.466151-1-kafai@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../bpf/prog_tests/btf_skc_cls_ingress.c         | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c b/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
index 86ccf37e26b3f..d16fd888230a5 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
@@ -90,7 +90,7 @@ static void print_err_line(void)
 
 static void test_conn(void)
 {
-	int listen_fd = -1, cli_fd = -1, err;
+	int listen_fd = -1, cli_fd = -1, srv_fd = -1, err;
 	socklen_t addrlen = sizeof(srv_sa6);
 	int srv_port;
 
@@ -112,6 +112,10 @@ static void test_conn(void)
 	if (CHECK_FAIL(cli_fd == -1))
 		goto done;
 
+	srv_fd = accept(listen_fd, NULL, NULL);
+	if (CHECK_FAIL(srv_fd == -1))
+		goto done;
+
 	if (CHECK(skel->bss->listen_tp_sport != srv_port ||
 		  skel->bss->req_sk_sport != srv_port,
 		  "Unexpected sk src port",
@@ -134,11 +138,13 @@ done:
 		close(listen_fd);
 	if (cli_fd != -1)
 		close(cli_fd);
+	if (srv_fd != -1)
+		close(srv_fd);
 }
 
 static void test_syncookie(void)
 {
-	int listen_fd = -1, cli_fd = -1, err;
+	int listen_fd = -1, cli_fd = -1, srv_fd = -1, err;
 	socklen_t addrlen = sizeof(srv_sa6);
 	int srv_port;
 
@@ -161,6 +167,10 @@ static void test_syncookie(void)
 	if (CHECK_FAIL(cli_fd == -1))
 		goto done;
 
+	srv_fd = accept(listen_fd, NULL, NULL);
+	if (CHECK_FAIL(srv_fd == -1))
+		goto done;
+
 	if (CHECK(skel->bss->listen_tp_sport != srv_port,
 		  "Unexpected tp src port",
 		  "listen_tp_sport:%u expected:%u\n",
@@ -188,6 +198,8 @@ done:
 		close(listen_fd);
 	if (cli_fd != -1)
 		close(cli_fd);
+	if (srv_fd != -1)
+		close(srv_fd);
 }
 
 struct test {
-- 
GitLab


From 151ffac3ac277ad7c2a5f201b566b56d97ed3a99 Mon Sep 17 00:00:00 2001
From: Xiaoming Ni <nixiaoming@huawei.com>
Date: Fri, 26 Nov 2021 12:11:53 +0800
Subject: [PATCH 2354/4878] powerpc/85xx: Fix oops when CONFIG_FSL_PMC=n

[ Upstream commit 3dc709e518b47386e6af937eaec37bb36539edfd ]

When CONFIG_FSL_PMC is set to n, no value is assigned to cpu_up_prepare
in the mpc85xx_pm_ops structure. As a result, oops is triggered in
smp_85xx_start_cpu().

  smp: Bringing up secondary CPUs ...
  kernel tried to execute user page (0) - exploit attempt? (uid: 0)
  BUG: Unable to handle kernel instruction fetch (NULL pointer?)
  Faulting instruction address: 0x00000000
  Oops: Kernel access of bad area, sig: 11 [#1]
  ...
  NIP [00000000] 0x0
  LR [c0021d2c] smp_85xx_kick_cpu+0xe8/0x568
  Call Trace:
  [c1051da8] [c0021cb8] smp_85xx_kick_cpu+0x74/0x568 (unreliable)
  [c1051de8] [c0011460] __cpu_up+0xc0/0x228
  [c1051e18] [c0031bbc] bringup_cpu+0x30/0x224
  [c1051e48] [c0031f3c] cpu_up.constprop.0+0x180/0x33c
  [c1051e88] [c00322e8] bringup_nonboot_cpus+0x88/0xc8
  [c1051eb8] [c07e67bc] smp_init+0x30/0x78
  [c1051ed8] [c07d9e28] kernel_init_freeable+0x118/0x2a8
  [c1051f18] [c00032d8] kernel_init+0x14/0x124
  [c1051f38] [c0010278] ret_from_kernel_thread+0x14/0x1c

Fixes: c45361abb918 ("powerpc/85xx: fix timebase sync issue when CONFIG_HOTPLUG_CPU=n")
Reported-by: Martin Kennedy <hurricos@gmail.com>
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Tested-by: Martin Kennedy <hurricos@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211126041153.16926-1-nixiaoming@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/85xx/smp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index 83f4a6389a282..d7081e9af65c7 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -220,7 +220,7 @@ static int smp_85xx_start_cpu(int cpu)
 	local_irq_save(flags);
 	hard_irq_disable();
 
-	if (qoriq_pm_ops)
+	if (qoriq_pm_ops && qoriq_pm_ops->cpu_up_prepare)
 		qoriq_pm_ops->cpu_up_prepare(cpu);
 
 	/* if cpu is not spinning, reset it */
@@ -292,7 +292,7 @@ static int smp_85xx_kick_cpu(int nr)
 		booting_thread_hwid = cpu_thread_in_core(nr);
 		primary = cpu_first_thread_sibling(nr);
 
-		if (qoriq_pm_ops)
+		if (qoriq_pm_ops && qoriq_pm_ops->cpu_up_prepare)
 			qoriq_pm_ops->cpu_up_prepare(nr);
 
 		/*
-- 
GitLab


From 2b54f485f2c193100ed92d3c9a95dc6f0f27c620 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 14 Dec 2021 19:46:21 +0100
Subject: [PATCH 2355/4878] USB: gadget: bRequestType is a bitfield, not a enum

[ Upstream commit f08adf5add9a071160c68bb2a61d697f39ab0758 ]

Szymon rightly pointed out that the previous check for the endpoint
direction in bRequestType was not looking at only the bit involved, but
rather the whole value.  Normally this is ok, but for some request
types, bits other than bit 8 could be set and the check for the endpoint
length could not stall correctly.

Fix that up by only checking the single bit.

Fixes: 153a2d7e3350 ("USB: gadget: detect too-big endpoint 0 requests")
Cc: Felipe Balbi <balbi@kernel.org>
Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Link: https://lore.kernel.org/r/20211214184621.385828-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/composite.c    | 6 +++---
 drivers/usb/gadget/legacy/dbgp.c  | 6 +++---
 drivers/usb/gadget/legacy/inode.c | 6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 426132988512d..8bec0cbf844ed 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1649,14 +1649,14 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 	u8				endp;
 
 	if (w_length > USB_COMP_EP0_BUFSIZ) {
-		if (ctrl->bRequestType == USB_DIR_OUT) {
-			goto done;
-		} else {
+		if (ctrl->bRequestType & USB_DIR_IN) {
 			/* Cast away the const, we are going to overwrite on purpose. */
 			__le16 *temp = (__le16 *)&ctrl->wLength;
 
 			*temp = cpu_to_le16(USB_COMP_EP0_BUFSIZ);
 			w_length = USB_COMP_EP0_BUFSIZ;
+		} else {
+			goto done;
 		}
 	}
 
diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c
index 355bc7dab9d5f..6bcbad3825802 100644
--- a/drivers/usb/gadget/legacy/dbgp.c
+++ b/drivers/usb/gadget/legacy/dbgp.c
@@ -346,14 +346,14 @@ static int dbgp_setup(struct usb_gadget *gadget,
 	u16 len = 0;
 
 	if (length > DBGP_REQ_LEN) {
-		if (ctrl->bRequestType == USB_DIR_OUT) {
-			return err;
-		} else {
+		if (ctrl->bRequestType & USB_DIR_IN) {
 			/* Cast away the const, we are going to overwrite on purpose. */
 			__le16 *temp = (__le16 *)&ctrl->wLength;
 
 			*temp = cpu_to_le16(DBGP_REQ_LEN);
 			length = DBGP_REQ_LEN;
+		} else {
+			return err;
 		}
 	}
 
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 04b9c4f5f129d..217d2b66fa514 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -1336,14 +1336,14 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 	u16				w_length = le16_to_cpu(ctrl->wLength);
 
 	if (w_length > RBUF_SIZE) {
-		if (ctrl->bRequestType == USB_DIR_OUT) {
-			return value;
-		} else {
+		if (ctrl->bRequestType & USB_DIR_IN) {
 			/* Cast away the const, we are going to overwrite on purpose. */
 			__le16 *temp = (__le16 *)&ctrl->wLength;
 
 			*temp = cpu_to_le16(RBUF_SIZE);
 			w_length = RBUF_SIZE;
+		} else {
+			return value;
 		}
 	}
 
-- 
GitLab


From 5fe305c6d485e55f964f5b60923234cedf24d57a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 17 Dec 2021 16:24:30 +0100
Subject: [PATCH 2356/4878] Revert "usb: early: convert to
 readl_poll_timeout_atomic()"

[ Upstream commit c4d936efa46d8ea183df16c0f3fa4423327da51d ]

This reverts commit 796eed4b2342c9d6b26c958e92af91253a2390e1.

This change causes boot lockups when using "arlyprintk=xdbc" because
ktime can not be used at this point in time in the boot process.  Also,
it is not needed for very small delays like this.

Reported-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Cc: Jann Horn <jannh@google.com>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Fixes: 796eed4b2342 ("usb: early: convert to readl_poll_timeout_atomic()")
Link: https://lore.kernel.org/r/c2b5c9bb-1b75-bf56-3754-b5b18812d65e@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/early/xhci-dbc.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index be4ecbabdd586..6c0434100e38c 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -14,7 +14,6 @@
 #include <linux/pci_ids.h>
 #include <linux/memblock.h>
 #include <linux/io.h>
-#include <linux/iopoll.h>
 #include <asm/pci-direct.h>
 #include <asm/fixmap.h>
 #include <linux/bcd.h>
@@ -136,9 +135,17 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done, int wait, int delay)
 {
 	u32 result;
 
-	return readl_poll_timeout_atomic(ptr, result,
-					 ((result & mask) == done),
-					 delay, wait);
+	/* Can not use readl_poll_timeout_atomic() for early boot things */
+	do {
+		result = readl(ptr);
+		result &= mask;
+		if (result == done)
+			return 0;
+		udelay(delay);
+		wait -= delay;
+	} while (wait > 0);
+
+	return -ETIMEDOUT;
 }
 
 static void __init xdbc_bios_handoff(void)
-- 
GitLab


From 9439fabfc349c3e8eacfb6b0856d6739de129969 Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Thu, 16 Dec 2021 17:52:13 +0100
Subject: [PATCH 2357/4878] KVM: x86: Drop guest CPUID check for host initiated
 writes to MSR_IA32_PERF_CAPABILITIES

[ Upstream commit 1aa2abb33a419090c7c87d4ae842a6347078ee12 ]

The ability to write to MSR_IA32_PERF_CAPABILITIES from the host should
not depend on guest visible CPUID entries, even if just to allow
creating/restoring guest MSRs and CPUIDs in any sequence.

Fixes: 27461da31089 ("KVM: x86/pmu: Support full width counting")
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211216165213.338923-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b885063dc393f..4f828cac0273e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3065,7 +3065,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 
 		if (!msr_info->host_initiated)
 			return 1;
-		if (guest_cpuid_has(vcpu, X86_FEATURE_PDCM) && kvm_get_msr_feature(&msr_ent))
+		if (kvm_get_msr_feature(&msr_ent))
 			return 1;
 		if (data & ~msr_ent.data)
 			return 1;
-- 
GitLab


From fd623e16b2ff83ce8579f1ce11ad5f2debeabfbb Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: Wed, 15 Dec 2021 20:52:40 +0900
Subject: [PATCH 2358/4878] tty: n_hdlc: make n_hdlc_tty_wakeup() asynchronous

commit 1ee33b1ca2b8dabfcc17198ffd049a6b55674a86 upstream.

syzbot is reporting that an unprivileged user who logged in from tty
console can crash the system using a reproducer shown below [1], for
n_hdlc_tty_wakeup() is synchronously calling n_hdlc_send_frames().

----------
  #include <sys/ioctl.h>
  #include <unistd.h>

  int main(int argc, char *argv[])
  {
    const int disc = 0xd;

    ioctl(1, TIOCSETD, &disc);
    while (1) {
      ioctl(1, TCXONC, 0);
      write(1, "", 1);
      ioctl(1, TCXONC, 1); /* Kernel panic - not syncing: scheduling while atomic */
    }
  }
----------

Linus suspected that "struct tty_ldisc"->ops->write_wakeup() must not
sleep, and Jiri confirmed it from include/linux/tty_ldisc.h. Thus, defer
n_hdlc_send_frames() from n_hdlc_tty_wakeup() to a WQ context like
net/nfc/nci/uart.c does.

Link: https://syzkaller.appspot.com/bug?extid=5f47a8cea6a12b77a876 [1]
Reported-by: syzbot <syzbot+5f47a8cea6a12b77a876@syzkaller.appspotmail.com>
Cc: stable <stable@vger.kernel.org>
Analyzed-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Confirmed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Link: https://lore.kernel.org/r/40de8b7e-a3be-4486-4e33-1b1d1da452f8@i-love.sakura.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_hdlc.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 1363e659dc1db..48c64e68017cd 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -139,6 +139,8 @@ struct n_hdlc {
 	struct n_hdlc_buf_list	rx_buf_list;
 	struct n_hdlc_buf_list	tx_free_buf_list;
 	struct n_hdlc_buf_list	rx_free_buf_list;
+	struct work_struct	write_work;
+	struct tty_struct	*tty_for_write_work;
 };
 
 /*
@@ -153,6 +155,7 @@ static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *list);
 /* Local functions */
 
 static struct n_hdlc *n_hdlc_alloc(void);
+static void n_hdlc_tty_write_work(struct work_struct *work);
 
 /* max frame size for memory allocations */
 static int maxframe = 4096;
@@ -209,6 +212,8 @@ static void n_hdlc_tty_close(struct tty_struct *tty)
 	wake_up_interruptible(&tty->read_wait);
 	wake_up_interruptible(&tty->write_wait);
 
+	cancel_work_sync(&n_hdlc->write_work);
+
 	n_hdlc_free_buf_list(&n_hdlc->rx_free_buf_list);
 	n_hdlc_free_buf_list(&n_hdlc->tx_free_buf_list);
 	n_hdlc_free_buf_list(&n_hdlc->rx_buf_list);
@@ -240,6 +245,8 @@ static int n_hdlc_tty_open(struct tty_struct *tty)
 		return -ENFILE;
 	}
 
+	INIT_WORK(&n_hdlc->write_work, n_hdlc_tty_write_work);
+	n_hdlc->tty_for_write_work = tty;
 	tty->disc_data = n_hdlc;
 	tty->receive_room = 65536;
 
@@ -333,6 +340,20 @@ check_again:
 		goto check_again;
 }	/* end of n_hdlc_send_frames() */
 
+/**
+ * n_hdlc_tty_write_work - Asynchronous callback for transmit wakeup
+ * @work: pointer to work_struct
+ *
+ * Called when low level device driver can accept more send data.
+ */
+static void n_hdlc_tty_write_work(struct work_struct *work)
+{
+	struct n_hdlc *n_hdlc = container_of(work, struct n_hdlc, write_work);
+	struct tty_struct *tty = n_hdlc->tty_for_write_work;
+
+	n_hdlc_send_frames(n_hdlc, tty);
+}	/* end of n_hdlc_tty_write_work() */
+
 /**
  * n_hdlc_tty_wakeup - Callback for transmit wakeup
  * @tty: pointer to associated tty instance data
@@ -343,7 +364,7 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty)
 {
 	struct n_hdlc *n_hdlc = tty->disc_data;
 
-	n_hdlc_send_frames(n_hdlc, tty);
+	schedule_work(&n_hdlc->write_work);
 }	/* end of n_hdlc_tty_wakeup() */
 
 /**
-- 
GitLab


From 2b2edc8fc5a8b4a5ff953a395f8aeeb5413299b6 Mon Sep 17 00:00:00 2001
From: Jimmy Wang <wangjm221@gmail.com>
Date: Tue, 14 Dec 2021 09:26:50 +0800
Subject: [PATCH 2359/4878] USB: NO_LPM quirk Lenovo USB-C to Ethernet
 Adapher(RTL8153-04)

commit 0ad3bd562bb91853b9f42bda145b5db6255aee90 upstream.

This device doesn't work well with LPM, losing connectivity intermittently.
Disable LPM to resolve the issue.

Reviewed-by: <markpearson@lenovo.com>
Signed-off-by: Jimmy Wang <wangjm221@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211214012652.4898-1-wangjm221@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 61f686c5bd9c6..baf80e2ac7d8e 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -435,6 +435,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	/* Lenovo USB-C to Ethernet Adapter RTL8153-04 */
+	{ USB_DEVICE(0x17ef, 0x720c), .driver_info = USB_QUIRK_NO_LPM },
+
 	/* Lenovo Powered USB-C Travel Hub (4X90S92381, RTL8153 GigE) */
 	{ USB_DEVICE(0x17ef, 0x721e), .driver_info = USB_QUIRK_NO_LPM },
 
-- 
GitLab


From d17c5a389768eb658b6a36eab3c25326813d46b1 Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@foss.st.com>
Date: Tue, 7 Dec 2021 13:45:10 +0100
Subject: [PATCH 2360/4878] usb: dwc2: fix STM ID/VBUS detection startup delay
 in dwc2_driver_probe

commit fac6bf87c55f7f0733efb0375565fb6a50cf2caf upstream.

When activate_stm_id_vb_detection is enabled, ID and Vbus detection relies
on sensing comparators. This detection needs time to stabilize.
A delay was already applied in dwc2_resume() when reactivating the
detection, but it wasn't done in dwc2_probe().
This patch adds delay after enabling STM ID/VBUS detection. Then, ID state
is good when initializing gadget and host, and avoid to get a wrong
Connector ID Status Change interrupt.

Fixes: a415083a11cc ("usb: dwc2: add support for STM32MP15 SoCs USB OTG HS and FS")
Cc: stable <stable@vger.kernel.org>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211207124510.268841-1-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/platform.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 5f18acac74068..49d333f02af4e 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -542,6 +542,9 @@ static int dwc2_driver_probe(struct platform_device *dev)
 		ggpio |= GGPIO_STM32_OTG_GCCFG_IDEN;
 		ggpio |= GGPIO_STM32_OTG_GCCFG_VBDEN;
 		dwc2_writel(hsotg, ggpio, GGPIO);
+
+		/* ID/VBUS detection startup time */
+		usleep_range(5000, 7000);
 	}
 
 	retval = dwc2_drd_init(hsotg);
-- 
GitLab


From f8aa09186c3068478133dcd129a2f3ba39e104af Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 14 Dec 2021 12:42:14 +0100
Subject: [PATCH 2361/4878] PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error

commit 94185adbfad56815c2c8401e16d81bdb74a79201 upstream.

PCI_MSIX_FLAGS_MASKALL is set in the MSI-X control register at MSI-X
interrupt setup time. It's cleared on success, but the error handling path
only clears the PCI_MSIX_FLAGS_ENABLE bit.

That's incorrect as the reset state of the PCI_MSIX_FLAGS_MASKALL bit is
zero. That can be observed via lspci:

        Capabilities: [b0] MSI-X: Enable- Count=67 Masked+

Clear the bit in the error path to restore the reset state.

Fixes: 438553958ba1 ("PCI/MSI: Enable and mask MSI-X early")
Reported-by: Stefan Roese <sr@denx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Stefan Roese <sr@denx.de>
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Marek Vasut <marex@denx.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87tufevoqx.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/msi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index db7475dc601f5..246ee9ce44a75 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -879,7 +879,7 @@ out_free:
 	free_msi_irqs(dev);
 
 out_disable:
-	pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_ENABLE, 0);
+	pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL | PCI_MSIX_FLAGS_ENABLE, 0);
 
 	return ret;
 }
-- 
GitLab


From e5949933f313c9e2c30ba05b977a047148b5e38c Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Tue, 14 Dec 2021 12:49:32 +0100
Subject: [PATCH 2362/4878] PCI/MSI: Mask MSI-X vectors only on success
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 83dbf898a2d45289be875deb580e93050ba67529 upstream.

Masking all unused MSI-X entries is done to ensure that a crash kernel
starts from a clean slate, which correponds to the reset state of the
device as defined in the PCI-E specificion 3.0 and later:

 Vector Control for MSI-X Table Entries
 --------------------------------------

 "00: Mask bit:  When this bit is set, the function is prohibited from
                 sending a message using this MSI-X Table entry.
                 ...
                 This bit’s state after reset is 1 (entry is masked)."

A Marvell NVME device fails to deliver MSI interrupts after trying to
enable MSI-X interrupts due to that masking. It seems to take the MSI-X
mask bits into account even when MSI-X is disabled.

While not specification compliant, this can be cured by moving the masking
into the success path, so that the MSI-X table entries stay in device reset
state when the MSI-X setup fails.

[ tglx: Move it into the success path, add comment and amend changelog ]

Fixes: aa8092c1d1f1 ("PCI/MSI: Mask all unused MSI-X entries")
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-pci@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Marek Vasut <marex@denx.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211210161025.3287927-1-sr@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/msi.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 246ee9ce44a75..57314fec2261b 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -828,9 +828,6 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries,
 		goto out_disable;
 	}
 
-	/* Ensure that all table entries are masked. */
-	msix_mask_all(base, tsize);
-
 	ret = msix_setup_entries(dev, base, entries, nvec, affd);
 	if (ret)
 		goto out_disable;
@@ -853,6 +850,16 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries,
 	/* Set MSI-X enabled bits and unmask the function */
 	pci_intx_for_msi(dev, 0);
 	dev->msix_enabled = 1;
+
+	/*
+	 * Ensure that all table entries are masked to prevent
+	 * stale entries from firing in a crash kernel.
+	 *
+	 * Done late to deal with a broken Marvell NVME device
+	 * which takes the MSI-X mask bits into account even
+	 * when MSI-X is disabled, which prevents MSI delivery.
+	 */
+	msix_mask_all(base, tsize);
 	pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL, 0);
 
 	pcibios_free_irq(dev);
-- 
GitLab


From 8f207f12630bc52221accb8f89957425e27bcfa0 Mon Sep 17 00:00:00 2001
From: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
Date: Wed, 15 Dec 2021 15:02:16 +0530
Subject: [PATCH 2363/4878] usb: xhci: Extend support for runtime power
 management for AMD's Yellow carp.

commit f886d4fbb7c97b8f5f447c92d2dab99c841803c0 upstream.

AMD's Yellow Carp platform has few more XHCI controllers,
enable the runtime power management support for the same.

Signed-off-by: Nehal Bakulchandra Shah <Nehal-Bakulchandra.shah@amd.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211215093216.1839065-1-Nehal-Bakulchandra.shah@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 80251a2579fda..c9133df71e52b 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -70,6 +70,8 @@
 #define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4		0x161e
 #define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5		0x15d6
 #define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6		0x15d7
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_7		0x161c
+#define PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_8		0x161f
 
 #define PCI_DEVICE_ID_ASMEDIA_1042_XHCI			0x1042
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
@@ -325,7 +327,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_3 ||
 	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_4 ||
 	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_5 ||
-	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6))
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_6 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_7 ||
+	    pdev->device == PCI_DEVICE_ID_AMD_YELLOW_CARP_XHCI_8))
 		xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
 
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
-- 
GitLab


From 5c93584d9a2fd7e9e4238868c754b5eb0acf5452 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Fri, 26 Nov 2021 10:43:48 +0100
Subject: [PATCH 2364/4878] USB: serial: cp210x: fix CP2105 GPIO registration

commit 83b67041f3eaf33f98a075249aa7f4c7617c2f85 upstream.

When generalising GPIO support and adding support for CP2102N, the GPIO
registration for some CP2105 devices accidentally broke. Specifically,
when all the pins of a port are in "modem" mode, and thus unavailable
for GPIO use, the GPIO chip would now be registered without having
initialised the number of GPIO lines. This would in turn be rejected by
gpiolib and some errors messages would be printed (but importantly probe
would still succeed).

Fix this by initialising the number of GPIO lines before registering the
GPIO chip.

Note that as for the other device types, and as when all CP2105 pins are
muxed for LED function, the GPIO chip is registered also when no pins
are available for GPIO use.

Reported-by: Maarten Brock <m.brock@vanmierlo.com>
Link: https://lore.kernel.org/r/5eb560c81d2ea1a2b4602a92d9f48a89@vanmierlo.com
Fixes: c8acfe0aadbe ("USB: serial: cp210x: implement GPIO support for CP2102N")
Cc: stable@vger.kernel.org      # 4.19
Cc: Karoly Pados <pados@pados.hu>
Link: https://lore.kernel.org/r/20211126094348.31698-1-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Maarten Brock <m.brock@vanmierlo.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/cp210x.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 6d858bdaf33ce..f906c1308f9f9 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -1750,6 +1750,8 @@ static int cp2105_gpioconf_init(struct usb_serial *serial)
 
 	/*  2 banks of GPIO - One for the pins taken from each serial port */
 	if (intf_num == 0) {
+		priv->gc.ngpio = 2;
+
 		if (mode.eci == CP210X_PIN_MODE_MODEM) {
 			/* mark all GPIOs of this interface as reserved */
 			priv->gpio_altfunc = 0xff;
@@ -1760,8 +1762,9 @@ static int cp2105_gpioconf_init(struct usb_serial *serial)
 		priv->gpio_pushpull = (u8)((le16_to_cpu(config.gpio_mode) &
 						CP210X_ECI_GPIO_MODE_MASK) >>
 						CP210X_ECI_GPIO_MODE_OFFSET);
-		priv->gc.ngpio = 2;
 	} else if (intf_num == 1) {
+		priv->gc.ngpio = 3;
+
 		if (mode.sci == CP210X_PIN_MODE_MODEM) {
 			/* mark all GPIOs of this interface as reserved */
 			priv->gpio_altfunc = 0xff;
@@ -1772,7 +1775,6 @@ static int cp2105_gpioconf_init(struct usb_serial *serial)
 		priv->gpio_pushpull = (u8)((le16_to_cpu(config.gpio_mode) &
 						CP210X_SCI_GPIO_MODE_MASK) >>
 						CP210X_SCI_GPIO_MODE_OFFSET);
-		priv->gc.ngpio = 3;
 	} else {
 		return -ENODEV;
 	}
-- 
GitLab


From cd98cb5216a01f13296f759f790a1310c648d4c9 Mon Sep 17 00:00:00 2001
From: Daniele Palmas <dnlplm@gmail.com>
Date: Fri, 10 Dec 2021 11:07:14 +0100
Subject: [PATCH 2365/4878] USB: serial: option: add Telit FN990 compositions

commit 2b503c8598d1b232e7fc7526bce9326d92331541 upstream.

Add the following Telit FN990 compositions:

0x1070: tty, adb, rmnet, tty, tty, tty, tty
0x1071: tty, adb, mbim, tty, tty, tty, tty
0x1072: rndis, tty, adb, tty, tty, tty, tty
0x1073: tty, adb, ecm, tty, tty, tty, tty

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Link: https://lore.kernel.org/r/20211210100714.22587-1-dnlplm@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 28ffe4e358b77..21b1488fe4461 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1219,6 +1219,14 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(2) | RSVD(3) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1063, 0xff),	/* Telit LN920 (ECM) */
 	  .driver_info = NCTRL(0) | RSVD(1) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1070, 0xff),	/* Telit FN990 (rmnet) */
+	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1071, 0xff),	/* Telit FN990 (MBIM) */
+	  .driver_info = NCTRL(0) | RSVD(1) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1072, 0xff),	/* Telit FN990 (RNDIS) */
+	  .driver_info = NCTRL(2) | RSVD(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1073, 0xff),	/* Telit FN990 (ECM) */
+	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
-- 
GitLab


From 005d9292b5b2e71a009f911bd85d755009b37242 Mon Sep 17 00:00:00 2001
From: Jianglei Nie <niejianglei2021@163.com>
Date: Thu, 9 Dec 2021 14:56:31 +0800
Subject: [PATCH 2366/4878] btrfs: fix memory leak in __add_inode_ref()

commit f35838a6930296fc1988764cfa54cb3f705c0665 upstream.

Line 1169 (#3) allocates a memory chunk for victim_name by kmalloc(),
but  when the function returns in line 1184 (#4) victim_name allocated
by line 1169 (#3) is not freed, which will lead to a memory leak.
There is a similar snippet of code in this function as allocating a memory
chunk for victim_name in line 1104 (#1) as well as releasing the memory
in line 1116 (#2).

We should kfree() victim_name when the return value of backref_in_log()
is less than zero and before the function returns in line 1184 (#4).

1057 static inline int __add_inode_ref(struct btrfs_trans_handle *trans,
1058 				  struct btrfs_root *root,
1059 				  struct btrfs_path *path,
1060 				  struct btrfs_root *log_root,
1061 				  struct btrfs_inode *dir,
1062 				  struct btrfs_inode *inode,
1063 				  u64 inode_objectid, u64 parent_objectid,
1064 				  u64 ref_index, char *name, int namelen,
1065 				  int *search_done)
1066 {

1104 	victim_name = kmalloc(victim_name_len, GFP_NOFS);
	// #1: kmalloc (victim_name-1)
1105 	if (!victim_name)
1106 		return -ENOMEM;

1112	ret = backref_in_log(log_root, &search_key,
1113			parent_objectid, victim_name,
1114			victim_name_len);
1115	if (ret < 0) {
1116		kfree(victim_name); // #2: kfree (victim_name-1)
1117		return ret;
1118	} else if (!ret) {

1169 	victim_name = kmalloc(victim_name_len, GFP_NOFS);
	// #3: kmalloc (victim_name-2)
1170 	if (!victim_name)
1171 		return -ENOMEM;

1180 	ret = backref_in_log(log_root, &search_key,
1181 			parent_objectid, victim_name,
1182 			victim_name_len);
1183 	if (ret < 0) {
1184 		return ret; // #4: missing kfree (victim_name-2)
1185 	} else if (!ret) {

1241 	return 0;
1242 }

Fixes: d3316c8233bb ("btrfs: Properly handle backref_in_log retval")
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 4a5a3ae0acaae..09ef6419e890a 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1109,6 +1109,7 @@ again:
 					     parent_objectid, victim_name,
 					     victim_name_len);
 			if (ret < 0) {
+				kfree(victim_name);
 				return ret;
 			} else if (!ret) {
 				ret = -ENOENT;
-- 
GitLab


From 1c414ff63b2ddb2e4125ce071ddf87e0ec03de46 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Fri, 10 Dec 2021 19:02:18 +0000
Subject: [PATCH 2367/4878] btrfs: fix double free of anon_dev after failure to
 create subvolume

commit 33fab972497ae66822c0b6846d4f9382938575b6 upstream.

When creating a subvolume, at create_subvol(), we allocate an anonymous
device and later call btrfs_get_new_fs_root(), which in turn just calls
btrfs_get_root_ref(). There we call btrfs_init_fs_root() which assigns
the anonymous device to the root, but if after that call there's an error,
when we jump to 'fail' label, we call btrfs_put_root(), which frees the
anonymous device and then returns an error that is propagated back to
create_subvol(). Than create_subvol() frees the anonymous device again.

When this happens, if the anonymous device was not reallocated after
the first time it was freed with btrfs_put_root(), we get a kernel
message like the following:

  (...)
  [13950.282466] BTRFS: error (device dm-0) in create_subvol:663: errno=-5 IO failure
  [13950.283027] ida_free called for id=65 which is not allocated.
  [13950.285974] BTRFS info (device dm-0): forced readonly
  (...)

If the anonymous device gets reallocated by another btrfs filesystem
or any other kernel subsystem, then bad things can happen.

So fix this by setting the root's anonymous device to 0 at
btrfs_get_root_ref(), before we call btrfs_put_root(), if an error
happened.

Fixes: 2dfb1e43f57dd3 ("btrfs: preallocate anon block device at first phase of snapshot creation")
CC: stable@vger.kernel.org # 5.10+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/disk-io.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index bab2091c81683..a5bcad0278835 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1603,6 +1603,14 @@ again:
 	}
 	return root;
 fail:
+	/*
+	 * If our caller provided us an anonymous device, then it's his
+	 * responsability to free it in case we fail. So we have to set our
+	 * root's anon_dev to 0 to avoid a double free, once by btrfs_put_root()
+	 * and once again by our caller.
+	 */
+	if (anon_dev)
+		root->anon_dev = 0;
 	btrfs_put_root(root);
 	return ERR_PTR(ret);
 }
-- 
GitLab


From bcebb8eb1948c412189f087c0d0d073bc8f960d9 Mon Sep 17 00:00:00 2001
From: Naohiro Aota <naohiro.aota@wdc.com>
Date: Fri, 17 Dec 2021 15:15:45 +0900
Subject: [PATCH 2368/4878] zonefs: add MODULE_ALIAS_FS

commit 8ffea2599f63fdbee968b894eab78170abf3ec2c upstream.

Add MODULE_ALIAS_FS() to load the module automatically when you do "mount
-t zonefs".

Fixes: 8dcc1a9d90c1 ("fs: New zonefs file system")
Cc: stable <stable@vger.kernel.org> # 5.6+
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/zonefs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index 2243dc1fb48fe..e60759d8bb5fb 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -1799,5 +1799,6 @@ static void __exit zonefs_exit(void)
 MODULE_AUTHOR("Damien Le Moal");
 MODULE_DESCRIPTION("Zone file system for zoned block devices");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_FS("zonefs");
 module_init(zonefs_init);
 module_exit(zonefs_exit);
-- 
GitLab


From a7c80674538f15f85d68138240aae440b8039519 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 13 Dec 2021 14:14:43 -1000
Subject: [PATCH 2369/4878] iocost: Fix divide-by-zero on donation from low
 hweight cgroup

commit edaa26334c117a584add6053f48d63a988d25a6e upstream.

The donation calculation logic assumes that the donor has non-zero
after-donation hweight, so the lowest active hweight a donating cgroup can
have is 2 so that it can donate 1 while keeping the other 1 for itself.
Earlier, we only donated from cgroups with sizable surpluses so this
condition was always true. However, with the precise donation algorithm
implemented, f1de2439ec43 ("blk-iocost: revamp donation amount
determination") made the donation amount calculation exact enabling even low
hweight cgroups to donate.

This means that in rare occasions, a cgroup with active hweight of 1 can
enter donation calculation triggering the following warning and then a
divide-by-zero oops.

 WARNING: CPU: 4 PID: 0 at block/blk-iocost.c:1928 transfer_surpluses.cold+0x0/0x53 [884/94867]
 ...
 RIP: 0010:transfer_surpluses.cold+0x0/0x53
 Code: 92 ff 48 c7 c7 28 d1 ab b5 65 48 8b 34 25 00 ae 01 00 48 81 c6 90 06 00 00 e8 8b 3f fe ff 48 c7 c0 ea ff ff ff e9 95 ff 92 ff <0f> 0b 48 c7 c7 30 da ab b5 e8 71 3f fe ff 4c 89 e8 4d 85 ed 74 0
4
 ...
 Call Trace:
  <IRQ>
  ioc_timer_fn+0x1043/0x1390
  call_timer_fn+0xa1/0x2c0
  __run_timers.part.0+0x1ec/0x2e0
  run_timer_softirq+0x35/0x70
 ...
 iocg: invalid donation weights in /a/b: active=1 donating=1 after=0

Fix it by excluding cgroups w/ active hweight < 2 from donating. Excluding
these extreme low hweight donations shouldn't affect work conservation in
any meaningful way.

Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: f1de2439ec43 ("blk-iocost: revamp donation amount determination")
Cc: stable@vger.kernel.org # v5.10+
Link: https://lore.kernel.org/r/Ybfh86iSvpWKxhVM@slm.duckdns.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/blk-iocost.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index e95b93f72bd5c..9af32b44b7173 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -2246,7 +2246,14 @@ static void ioc_timer_fn(struct timer_list *timer)
 			hwm = current_hweight_max(iocg);
 			new_hwi = hweight_after_donation(iocg, old_hwi, hwm,
 							 usage, &now);
-			if (new_hwi < hwm) {
+			/*
+			 * Donation calculation assumes hweight_after_donation
+			 * to be positive, a condition that a donor w/ hwa < 2
+			 * can't meet. Don't bother with donation if hwa is
+			 * below 2. It's not gonna make a meaningful difference
+			 * anyway.
+			 */
+			if (new_hwi < hwm && hwa >= 2) {
 				iocg->hweight_donating = hwa;
 				iocg->hweight_after_donation = new_hwi;
 				list_add(&iocg->surplus_list, &surpluses);
-- 
GitLab


From 6471ebcd6f15ee9decf9d2f4acc49073215933e0 Mon Sep 17 00:00:00 2001
From: "Ji-Ze Hong (Peter Hong)" <hpeter@gmail.com>
Date: Wed, 15 Dec 2021 15:58:35 +0800
Subject: [PATCH 2370/4878] serial: 8250_fintek: Fix garbled text for console

commit 6c33ff728812aa18792afffaf2c9873b898e7512 upstream.

Commit fab8a02b73eb ("serial: 8250_fintek: Enable high speed mode on Fintek F81866")
introduced support to use high baudrate with Fintek SuperIO UARTs. It'll
change clocksources when the UART probed.

But when user add kernel parameter "console=ttyS0,115200 console=tty0" to make
the UART as console output, the console will output garbled text after the
following kernel message.

[    3.681188] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled

The issue is occurs in following step:
	probe_setup_port() -> fintek_8250_goto_highspeed()

It change clocksource from 115200 to 921600 with wrong time, it should change
clocksource in set_termios() not in probed. The following 3 patches are
implemented change clocksource in fintek_8250_set_termios().

Commit 58178914ae5b ("serial: 8250_fintek: UART dynamic clocksource on Fintek F81216H")
Commit 195638b6d44f ("serial: 8250_fintek: UART dynamic clocksource on Fintek F81866")
Commit 423d9118c624 ("serial: 8250_fintek: Add F81966 Support")

Due to the high baud rate had implemented above 3 patches and the patch
Commit fab8a02b73eb ("serial: 8250_fintek: Enable high speed mode on Fintek F81866")
is bugged, So this patch will remove it.

Fixes: fab8a02b73eb ("serial: 8250_fintek: Enable high speed mode on Fintek F81866")
Signed-off-by: Ji-Ze Hong (Peter Hong) <hpeter+linux_kernel@gmail.com>
Link: https://lore.kernel.org/r/20211215075835.2072-1-hpeter+linux_kernel@gmail.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_fintek.c | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
index 31c9e83ea3cb2..251f0018ae8ca 100644
--- a/drivers/tty/serial/8250/8250_fintek.c
+++ b/drivers/tty/serial/8250/8250_fintek.c
@@ -290,25 +290,6 @@ static void fintek_8250_set_max_fifo(struct fintek_8250 *pdata)
 	}
 }
 
-static void fintek_8250_goto_highspeed(struct uart_8250_port *uart,
-			      struct fintek_8250 *pdata)
-{
-	sio_write_reg(pdata, LDN, pdata->index);
-
-	switch (pdata->pid) {
-	case CHIP_ID_F81966:
-	case CHIP_ID_F81866: /* set uart clock for high speed serial mode */
-		sio_write_mask_reg(pdata, F81866_UART_CLK,
-			F81866_UART_CLK_MASK,
-			F81866_UART_CLK_14_769MHZ);
-
-		uart->port.uartclk = 921600 * 16;
-		break;
-	default: /* leave clock speed untouched */
-		break;
-	}
-}
-
 static void fintek_8250_set_termios(struct uart_port *port,
 				    struct ktermios *termios,
 				    struct ktermios *old)
@@ -430,7 +411,6 @@ static int probe_setup_port(struct fintek_8250 *pdata,
 
 				fintek_8250_set_irq_mode(pdata, level_mode);
 				fintek_8250_set_max_fifo(pdata);
-				fintek_8250_goto_highspeed(uart, pdata);
 
 				fintek_8250_exit_key(addr[i]);
 
-- 
GitLab


From a9f2c6af5a601a2e2bf40e5561bedc87a44d9649 Mon Sep 17 00:00:00 2001
From: Yu Liao <liaoyu15@huawei.com>
Date: Mon, 13 Dec 2021 21:57:27 +0800
Subject: [PATCH 2371/4878] timekeeping: Really make sure wall_to_monotonic
 isn't positive

commit 4e8c11b6b3f0b6a283e898344f154641eda94266 upstream.

Even after commit e1d7ba873555 ("time: Always make sure wall_to_monotonic
isn't positive") it is still possible to make wall_to_monotonic positive
by running the following code:

    int main(void)
    {
        struct timespec time;

        clock_gettime(CLOCK_MONOTONIC, &time);
        time.tv_nsec = 0;
        clock_settime(CLOCK_REALTIME, &time);
        return 0;
    }

The reason is that the second parameter of timespec64_compare(), ts_delta,
may be unnormalized because the delta is calculated with an open coded
substraction which causes the comparison of tv_sec to yield the wrong
result:

  wall_to_monotonic = { .tv_sec = -10, .tv_nsec =  900000000 }
  ts_delta 	    = { .tv_sec =  -9, .tv_nsec = -900000000 }

That makes timespec64_compare() claim that wall_to_monotonic < ts_delta,
but actually the result should be wall_to_monotonic > ts_delta.

After normalization, the result of timespec64_compare() is correct because
the tv_sec comparison is not longer misleading:

  wall_to_monotonic = { .tv_sec = -10, .tv_nsec =  900000000 }
  ts_delta 	    = { .tv_sec = -10, .tv_nsec =  100000000 }

Use timespec64_sub() to ensure that ts_delta is normalized, which fixes the
issue.

Fixes: e1d7ba873555 ("time: Always make sure wall_to_monotonic isn't positive")
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211213135727.1656662-1-liaoyu15@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/time/timekeeping.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 6858a31364b64..cc4dc2857a870 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1310,8 +1310,7 @@ int do_settimeofday64(const struct timespec64 *ts)
 	timekeeping_forward_now(tk);
 
 	xt = tk_xtime(tk);
-	ts_delta.tv_sec = ts->tv_sec - xt.tv_sec;
-	ts_delta.tv_nsec = ts->tv_nsec - xt.tv_nsec;
+	ts_delta = timespec64_sub(*ts, xt);
 
 	if (timespec64_compare(&tk->wall_to_monotonic, &ts_delta) > 0) {
 		ret = -EINVAL;
-- 
GitLab


From c1d519263ded9a51560420e6c4a42fb02cc8c478 Mon Sep 17 00:00:00 2001
From: George Kennedy <george.kennedy@oracle.com>
Date: Tue, 14 Dec 2021 09:45:10 -0500
Subject: [PATCH 2372/4878] libata: if T_LENGTH is zero, dma direction should
 be DMA_NONE

commit 5da5231bb47864e5dd6c6731151e98b6ee498827 upstream.

Avoid data corruption by rejecting pass-through commands where
T_LENGTH is zero (No data is transferred) and the dma direction
is not DMA_NONE.

Cc: <stable@vger.kernel.org>
Reported-by: syzkaller<syzkaller@googlegroups.com>
Signed-off-by: George Kennedy<george.kennedy@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/libata-scsi.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 48b8934970f36..a0e788b648214 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2870,8 +2870,19 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
 		goto invalid_fld;
 	}
 
-	if (ata_is_ncq(tf->protocol) && (cdb[2 + cdb_offset] & 0x3) == 0)
-		tf->protocol = ATA_PROT_NCQ_NODATA;
+	if ((cdb[2 + cdb_offset] & 0x3) == 0) {
+		/*
+		 * When T_LENGTH is zero (No data is transferred), dir should
+		 * be DMA_NONE.
+		 */
+		if (scmd->sc_data_direction != DMA_NONE) {
+			fp = 2 + cdb_offset;
+			goto invalid_fld;
+		}
+
+		if (ata_is_ncq(tf->protocol))
+			tf->protocol = ATA_PROT_NCQ_NODATA;
+	}
 
 	/* enable LBA */
 	tf->flags |= ATA_TFLAG_LBA;
-- 
GitLab


From aec5897b277b13acd8f913d777654d4d092a24f1 Mon Sep 17 00:00:00 2001
From: Le Ma <le.ma@amd.com>
Date: Sat, 4 Dec 2021 18:59:08 +0800
Subject: [PATCH 2373/4878] drm/amdgpu: correct register access for
 RLC_JUMP_TABLE_RESTORE

commit f3a8076eb28cae1553958c629aecec479394bbe2 upstream.

should count on GC IP base address

Signed-off-by: Le Ma <le.ma@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index bea451a39d601..b19f7bd37781f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3002,8 +3002,8 @@ static void gfx_v9_0_init_pg(struct amdgpu_device *adev)
 			      AMD_PG_SUPPORT_CP |
 			      AMD_PG_SUPPORT_GDS |
 			      AMD_PG_SUPPORT_RLC_SMU_HS)) {
-		WREG32(mmRLC_JUMP_TABLE_RESTORE,
-		       adev->gfx.rlc.cp_table_gpu_addr >> 8);
+		WREG32_SOC15(GC, 0, mmRLC_JUMP_TABLE_RESTORE,
+			     adev->gfx.rlc.cp_table_gpu_addr >> 8);
 		gfx_v9_0_init_gfx_power_gating(adev);
 	}
 }
-- 
GitLab


From 8affa1b68db647f854c2026fab6283673e94579f Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 15 Oct 2021 13:13:06 -0700
Subject: [PATCH 2374/4878] Input: touchscreen - avoid bitwise vs logical OR
 warning

commit a02dcde595f7cbd240ccd64de96034ad91cffc40 upstream.

A new warning in clang points out a few places in this driver where a
bitwise OR is being used with boolean types:

drivers/input/touchscreen.c:81:17: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
        data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-x",
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This use of a bitwise OR is intentional, as bitwise operations do not
short circuit, which allows all the calls to touchscreen_get_prop_u32()
to happen so that the last parameter is initialized while coalescing the
results of the calls to make a decision after they are all evaluated.

To make this clearer to the compiler, use the '|=' operator to assign
the result of each touchscreen_get_prop_u32() call to data_present,
which keeps the meaning of the code the same but makes it obvious that
every one of these calls is expected to happen.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211014205757.3474635-1-nathan@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/touchscreen/of_touchscreen.c | 42 +++++++++++-----------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index 97342e14b4f18..8719a8b0e8682 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -79,27 +79,27 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch,
 
 	data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-x",
 						input_abs_get_min(input, axis_x),
-						&minimum) |
-		       touchscreen_get_prop_u32(dev, "touchscreen-size-x",
-						input_abs_get_max(input,
-								  axis_x) + 1,
-						&maximum) |
-		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x",
-						input_abs_get_fuzz(input, axis_x),
-						&fuzz);
+						&minimum);
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-size-x",
+						 input_abs_get_max(input,
+								   axis_x) + 1,
+						 &maximum);
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x",
+						 input_abs_get_fuzz(input, axis_x),
+						 &fuzz);
 	if (data_present)
 		touchscreen_set_params(input, axis_x, minimum, maximum - 1, fuzz);
 
 	data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-y",
 						input_abs_get_min(input, axis_y),
-						&minimum) |
-		       touchscreen_get_prop_u32(dev, "touchscreen-size-y",
-						input_abs_get_max(input,
-								  axis_y) + 1,
-						&maximum) |
-		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y",
-						input_abs_get_fuzz(input, axis_y),
-						&fuzz);
+						&minimum);
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-size-y",
+						 input_abs_get_max(input,
+								   axis_y) + 1,
+						 &maximum);
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y",
+						 input_abs_get_fuzz(input, axis_y),
+						 &fuzz);
 	if (data_present)
 		touchscreen_set_params(input, axis_y, minimum, maximum - 1, fuzz);
 
@@ -107,11 +107,11 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch,
 	data_present = touchscreen_get_prop_u32(dev,
 						"touchscreen-max-pressure",
 						input_abs_get_max(input, axis),
-						&maximum) |
-		       touchscreen_get_prop_u32(dev,
-						"touchscreen-fuzz-pressure",
-						input_abs_get_fuzz(input, axis),
-						&fuzz);
+						&maximum);
+	data_present |= touchscreen_get_prop_u32(dev,
+						 "touchscreen-fuzz-pressure",
+						 input_abs_get_fuzz(input, axis),
+						 &fuzz);
 	if (data_present)
 		touchscreen_set_params(input, axis, 0, maximum, fuzz);
 
-- 
GitLab


From 6b8d8ecdd980ce54fb7a51b0a0f8e3ad4ef577aa Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Wed, 24 Nov 2021 15:45:41 -0300
Subject: [PATCH 2375/4878] ARM: dts: imx6ull-pinfunc: Fix CSI_DATA07__ESAI_TX0
 pad name

commit 737e65c7956795b3553781fb7bc82fce1c39503f upstream.

According to the i.MX6ULL Reference Manual, pad CSI_DATA07 may
have the ESAI_TX0 functionality, not ESAI_T0.

Also, NXP's i.MX Config Tools 10.0 generates dtsi with the
MX6ULL_PAD_CSI_DATA07__ESAI_TX0 naming, so fix it accordingly.

There are no devicetree users in mainline that use the old name,
so just remove the old entry.

Fixes: c201369d4aa5 ("ARM: dts: imx6ull: add imx6ull support")
Reported-by: George Makarov <georgemakarov1@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/imx6ull-pinfunc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6ull-pinfunc.h b/arch/arm/boot/dts/imx6ull-pinfunc.h
index eb025a9d47592..7328d4ef8559f 100644
--- a/arch/arm/boot/dts/imx6ull-pinfunc.h
+++ b/arch/arm/boot/dts/imx6ull-pinfunc.h
@@ -82,6 +82,6 @@
 #define MX6ULL_PAD_CSI_DATA04__ESAI_TX_FS                         0x01F4 0x0480 0x0000 0x9 0x0
 #define MX6ULL_PAD_CSI_DATA05__ESAI_TX_CLK                        0x01F8 0x0484 0x0000 0x9 0x0
 #define MX6ULL_PAD_CSI_DATA06__ESAI_TX5_RX0                       0x01FC 0x0488 0x0000 0x9 0x0
-#define MX6ULL_PAD_CSI_DATA07__ESAI_T0                            0x0200 0x048C 0x0000 0x9 0x0
+#define MX6ULL_PAD_CSI_DATA07__ESAI_TX0                           0x0200 0x048C 0x0000 0x9 0x0
 
 #endif /* __DTS_IMX6ULL_PINFUNC_H */
-- 
GitLab


From 0413f7a1a53306bc7a0b7e4d6f5dbf94761db406 Mon Sep 17 00:00:00 2001
From: Magnus Karlsson <magnus.karlsson@intel.com>
Date: Tue, 14 Dec 2021 11:26:07 +0100
Subject: [PATCH 2376/4878] xsk: Do not sleep in poll() when need_wakeup set

commit bd0687c18e635b63233dc87f38058cd728802ab4 upstream.

Do not sleep in poll() when the need_wakeup flag is set. When this
flag is set, the application needs to explicitly wake up the driver
with a syscall (poll, recvmsg, sendmsg, etc.) to guarantee that Rx
and/or Tx processing will be processed promptly. But the current code
in poll(), sleeps first then wakes up the driver. This means that no
driver processing will occur (baring any interrupts) until the timeout
has expired.

Fix this by checking the need_wakeup flag first and if set, wake the
driver and return to the application. Only if need_wakeup is not set
should the process sleep if there is a timeout set in the poll() call.

Fixes: 77cd0d7b3f25 ("xsk: add support for need_wakeup flag in AF_XDP rings")
Reported-by: Keith Wiles <keith.wiles@intel.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/bpf/20211214102607.7677-1-magnus.karlsson@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/xdp/xsk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index ca4716b92774b..12112f4b9f7ce 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -499,8 +499,6 @@ static __poll_t xsk_poll(struct file *file, struct socket *sock,
 	struct xdp_sock *xs = xdp_sk(sk);
 	struct xsk_buff_pool *pool;
 
-	sock_poll_wait(file, sock, wait);
-
 	if (unlikely(!xsk_is_bound(xs)))
 		return mask;
 
@@ -512,6 +510,8 @@ static __poll_t xsk_poll(struct file *file, struct socket *sock,
 		else
 			/* Poll needs to drive Tx also in copy mode */
 			__xsk_sendmsg(sk);
+	} else {
+		sock_poll_wait(file, sock, wait);
 	}
 
 	if (xs->rx && !xskq_prod_is_empty(xs->rx))
-- 
GitLab


From b99bdf127af91d53919e96292c05f737c45ea59a Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Thu, 19 Aug 2021 12:42:21 +0200
Subject: [PATCH 2377/4878] media: mxl111sf: change mutex_init() location

commit 44870a9e7a3c24acbb3f888b2a7cc22c9bdf7e7f upstream.

Syzbot reported, that mxl111sf_ctrl_msg() uses uninitialized
mutex. The problem was in wrong mutex_init() location.

Previous mutex_init(&state->msg_lock) call was in ->init() function, but
dvb_usbv2_init() has this order of calls:

	dvb_usbv2_init()
	  dvb_usbv2_adapter_init()
	    dvb_usbv2_adapter_frontend_init()
	      props->frontend_attach()

	  props->init()

Since mxl111sf_* devices call mxl111sf_ctrl_msg() in ->frontend_attach()
internally we need to initialize state->msg_lock before
frontend_attach(). To achieve it, ->probe() call added to all mxl111sf_*
devices, which will simply initiaize mutex.

Reported-and-tested-by: syzbot+5ca0bf339f13c4243001@syzkaller.appspotmail.com

Fixes: 8572211842af ("[media] mxl111sf: convert to new DVB USB")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/dvb-usb-v2/mxl111sf.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
index 7865fa0a82957..cd5861a30b6f8 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
@@ -931,8 +931,6 @@ static int mxl111sf_init(struct dvb_usb_device *d)
 		  .len = sizeof(eeprom), .buf = eeprom },
 	};
 
-	mutex_init(&state->msg_lock);
-
 	ret = get_chip_info(state);
 	if (mxl_fail(ret))
 		pr_err("failed to get chip info during probe");
@@ -1074,6 +1072,14 @@ static int mxl111sf_get_stream_config_dvbt(struct dvb_frontend *fe,
 	return 0;
 }
 
+static int mxl111sf_probe(struct dvb_usb_device *dev)
+{
+	struct mxl111sf_state *state = d_to_priv(dev);
+
+	mutex_init(&state->msg_lock);
+	return 0;
+}
+
 static struct dvb_usb_device_properties mxl111sf_props_dvbt = {
 	.driver_name = KBUILD_MODNAME,
 	.owner = THIS_MODULE,
@@ -1083,6 +1089,7 @@ static struct dvb_usb_device_properties mxl111sf_props_dvbt = {
 	.generic_bulk_ctrl_endpoint = 0x02,
 	.generic_bulk_ctrl_endpoint_response = 0x81,
 
+	.probe             = mxl111sf_probe,
 	.i2c_algo          = &mxl111sf_i2c_algo,
 	.frontend_attach   = mxl111sf_frontend_attach_dvbt,
 	.tuner_attach      = mxl111sf_attach_tuner,
@@ -1124,6 +1131,7 @@ static struct dvb_usb_device_properties mxl111sf_props_atsc = {
 	.generic_bulk_ctrl_endpoint = 0x02,
 	.generic_bulk_ctrl_endpoint_response = 0x81,
 
+	.probe             = mxl111sf_probe,
 	.i2c_algo          = &mxl111sf_i2c_algo,
 	.frontend_attach   = mxl111sf_frontend_attach_atsc,
 	.tuner_attach      = mxl111sf_attach_tuner,
@@ -1165,6 +1173,7 @@ static struct dvb_usb_device_properties mxl111sf_props_mh = {
 	.generic_bulk_ctrl_endpoint = 0x02,
 	.generic_bulk_ctrl_endpoint_response = 0x81,
 
+	.probe             = mxl111sf_probe,
 	.i2c_algo          = &mxl111sf_i2c_algo,
 	.frontend_attach   = mxl111sf_frontend_attach_mh,
 	.tuner_attach      = mxl111sf_attach_tuner,
@@ -1233,6 +1242,7 @@ static struct dvb_usb_device_properties mxl111sf_props_atsc_mh = {
 	.generic_bulk_ctrl_endpoint = 0x02,
 	.generic_bulk_ctrl_endpoint_response = 0x81,
 
+	.probe             = mxl111sf_probe,
 	.i2c_algo          = &mxl111sf_i2c_algo,
 	.frontend_attach   = mxl111sf_frontend_attach_atsc_mh,
 	.tuner_attach      = mxl111sf_attach_tuner,
@@ -1311,6 +1321,7 @@ static struct dvb_usb_device_properties mxl111sf_props_mercury = {
 	.generic_bulk_ctrl_endpoint = 0x02,
 	.generic_bulk_ctrl_endpoint_response = 0x81,
 
+	.probe             = mxl111sf_probe,
 	.i2c_algo          = &mxl111sf_i2c_algo,
 	.frontend_attach   = mxl111sf_frontend_attach_mercury,
 	.tuner_attach      = mxl111sf_attach_tuner,
@@ -1381,6 +1392,7 @@ static struct dvb_usb_device_properties mxl111sf_props_mercury_mh = {
 	.generic_bulk_ctrl_endpoint = 0x02,
 	.generic_bulk_ctrl_endpoint_response = 0x81,
 
+	.probe             = mxl111sf_probe,
 	.i2c_algo          = &mxl111sf_i2c_algo,
 	.frontend_attach   = mxl111sf_frontend_attach_mercury_mh,
 	.tuner_attach      = mxl111sf_attach_tuner,
-- 
GitLab


From 5fd7d62daa241f0d5c6d25b29b2ba4bba48872cb Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Fri, 22 Oct 2021 17:03:01 +0200
Subject: [PATCH 2378/4878] fuse: annotate lock in fuse_reverse_inval_entry()

commit bda9a71980e083699a0360963c0135657b73f47a upstream.

Add missing inode lock annotatation; found by syzbot.

Reported-and-tested-by: syzbot+9f747458f5990eaa8d43@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index e7667497b6b77..8e95a75a4559c 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1132,7 +1132,7 @@ int fuse_reverse_inval_entry(struct fuse_conn *fc, u64 parent_nodeid,
 	if (!parent)
 		return -ENOENT;
 
-	inode_lock(parent);
+	inode_lock_nested(parent, I_MUTEX_PARENT);
 	if (!S_ISDIR(parent->i_mode))
 		goto unlock;
 
-- 
GitLab


From 6859985a2fbda5d1586bf44538853e1be69e85f7 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Thu, 4 Nov 2021 10:55:34 +0100
Subject: [PATCH 2379/4878] ovl: fix warning in ovl_create_real()

commit 1f5573cfe7a7056e80a92c7a037a3e69f3a13d1c upstream.

Syzbot triggered the following warning in ovl_workdir_create() ->
ovl_create_real():

	if (!err && WARN_ON(!newdentry->d_inode)) {

The reason is that the cgroup2 filesystem returns from mkdir without
instantiating the new dentry.

Weird filesystems such as this will be rejected by overlayfs at a later
stage during setup, but to prevent such a warning, call ovl_mkdir_real()
directly from ovl_workdir_create() and reject this case early.

Reported-and-tested-by: syzbot+75eab84fd0af9e8bf66b@syzkaller.appspotmail.com
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/overlayfs/dir.c       |  3 +--
 fs/overlayfs/overlayfs.h |  1 +
 fs/overlayfs/super.c     | 12 ++++++++----
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 16955a307dcd9..d0e5cde277022 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -137,8 +137,7 @@ kill_whiteout:
 	goto out;
 }
 
-static int ovl_mkdir_real(struct inode *dir, struct dentry **newdentry,
-			  umode_t mode)
+int ovl_mkdir_real(struct inode *dir, struct dentry **newdentry, umode_t mode)
 {
 	int err;
 	struct dentry *d, *dentry = *newdentry;
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index e43dc68bd1b54..898de3bf884e4 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -519,6 +519,7 @@ struct ovl_cattr {
 
 #define OVL_CATTR(m) (&(struct ovl_cattr) { .mode = (m) })
 
+int ovl_mkdir_real(struct inode *dir, struct dentry **newdentry, umode_t mode);
 struct dentry *ovl_create_real(struct inode *dir, struct dentry *newdentry,
 			       struct ovl_cattr *attr);
 int ovl_cleanup(struct inode *dir, struct dentry *dentry);
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 77f08ac04d1f3..45c596dfe3a36 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -743,10 +743,14 @@ retry:
 			goto retry;
 		}
 
-		work = ovl_create_real(dir, work, OVL_CATTR(attr.ia_mode));
-		err = PTR_ERR(work);
-		if (IS_ERR(work))
-			goto out_err;
+		err = ovl_mkdir_real(dir, &work, attr.ia_mode);
+		if (err)
+			goto out_dput;
+
+		/* Weird filesystem returning with hashed negative (kernfs)? */
+		err = -EINVAL;
+		if (d_really_is_negative(work))
+			goto out_dput;
 
 		/*
 		 * Try to remove POSIX ACL xattrs from workdir.  We are good if:
-- 
GitLab


From aa1f912712a109b6306746133de7e5343f016b26 Mon Sep 17 00:00:00 2001
From: George Kennedy <george.kennedy@oracle.com>
Date: Thu, 4 Nov 2021 15:06:37 -0500
Subject: [PATCH 2380/4878] scsi: scsi_debug: Don't call kcalloc() if size arg
 is zero

commit 3344b58b53a76199dae48faa396e9fc37bf86992 upstream.

If the size arg to kcalloc() is zero, it returns ZERO_SIZE_PTR.  Because of
that, for a following NULL pointer check to work on the returned pointer,
kcalloc() must not be called with the size arg equal to zero. Return early
without error before the kcalloc() call if size arg is zero.

BUG: KASAN: null-ptr-deref in memcpy include/linux/fortify-string.h:191 [inline]
BUG: KASAN: null-ptr-deref in sg_copy_buffer+0x138/0x240 lib/scatterlist.c:974
Write of size 4 at addr 0000000000000010 by task syz-executor.1/22789

CPU: 1 PID: 22789 Comm: syz-executor.1 Not tainted 5.15.0-syzk #1
Hardware name: Red Hat KVM, BIOS 1.13.0-2
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106
 __kasan_report mm/kasan/report.c:446 [inline]
 kasan_report.cold.14+0x112/0x117 mm/kasan/report.c:459
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x1a3/0x210 mm/kasan/generic.c:189
 memcpy+0x3b/0x60 mm/kasan/shadow.c:66
 memcpy include/linux/fortify-string.h:191 [inline]
 sg_copy_buffer+0x138/0x240 lib/scatterlist.c:974
 do_dout_fetch drivers/scsi/scsi_debug.c:2954 [inline]
 do_dout_fetch drivers/scsi/scsi_debug.c:2946 [inline]
 resp_verify+0x49e/0x930 drivers/scsi/scsi_debug.c:4276
 schedule_resp+0x4d8/0x1a70 drivers/scsi/scsi_debug.c:5478
 scsi_debug_queuecommand+0x8c9/0x1ec0 drivers/scsi/scsi_debug.c:7533
 scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1520 [inline]
 scsi_queue_rq+0x16b0/0x2d40 drivers/scsi/scsi_lib.c:1699
 blk_mq_dispatch_rq_list+0xb9b/0x2700 block/blk-mq.c:1639
 __blk_mq_sched_dispatch_requests+0x28f/0x590 block/blk-mq-sched.c:325
 blk_mq_sched_dispatch_requests+0x105/0x190 block/blk-mq-sched.c:358
 __blk_mq_run_hw_queue+0xe5/0x150 block/blk-mq.c:1761
 __blk_mq_delay_run_hw_queue+0x4f8/0x5c0 block/blk-mq.c:1838
 blk_mq_run_hw_queue+0x18d/0x350 block/blk-mq.c:1891
 blk_mq_sched_insert_request+0x3db/0x4e0 block/blk-mq-sched.c:474
 blk_execute_rq_nowait+0x16b/0x1c0 block/blk-exec.c:62
 blk_execute_rq+0xdb/0x360 block/blk-exec.c:102
 sg_scsi_ioctl drivers/scsi/scsi_ioctl.c:621 [inline]
 scsi_ioctl+0x8bb/0x15c0 drivers/scsi/scsi_ioctl.c:930
 sg_ioctl_common+0x172d/0x2710 drivers/scsi/sg.c:1112
 sg_ioctl+0xa2/0x180 drivers/scsi/sg.c:1165
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Link: https://lore.kernel.org/r/1636056397-13151-1-git-send-email-george.kennedy@oracle.com
Reported-by: syzkaller <syzkaller@googlegroups.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi_debug.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 9188191433439..b9db6c8225128 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4238,6 +4238,8 @@ static int resp_verify(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 		mk_sense_invalid_opcode(scp);
 		return check_condition_result;
 	}
+	if (vnum == 0)
+		return 0;	/* not an error */
 	a_num = is_bytchk3 ? 1 : vnum;
 	/* Treat following check like one for read (i.e. no write) access */
 	ret = check_device_access_params(scp, lba, a_num, false);
@@ -4301,6 +4303,8 @@ static int resp_report_zones(struct scsi_cmnd *scp,
 	}
 	zs_lba = get_unaligned_be64(cmd + 2);
 	alloc_len = get_unaligned_be32(cmd + 10);
+	if (alloc_len == 0)
+		return 0;	/* not an error */
 	rep_opts = cmd[14] & 0x3f;
 	partial = cmd[14] & 0x80;
 
-- 
GitLab


From bdb854f134b964528fa543e0351022eb45bd7346 Mon Sep 17 00:00:00 2001
From: George Kennedy <george.kennedy@oracle.com>
Date: Tue, 9 Nov 2021 13:57:27 -0500
Subject: [PATCH 2381/4878] scsi: scsi_debug: Fix type in min_t to avoid stack
 OOB

commit 36e07d7ede88a1f1ef8f0f209af5b7612324ac2c upstream.

Change min_t() to use type "u32" instead of type "int" to avoid stack out
of bounds. With min_t() type "int" the values get sign extended and the
larger value gets used causing stack out of bounds.

BUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:191 [inline]
BUG: KASAN: stack-out-of-bounds in sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976
Read of size 127 at addr ffff888072607128 by task syz-executor.7/18707

CPU: 1 PID: 18707 Comm: syz-executor.7 Not tainted 5.15.0-syzk #1
Hardware name: Red Hat KVM, BIOS 1.13.0-2
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:106
 print_address_description.constprop.9+0x28/0x160 mm/kasan/report.c:256
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold.14+0x7d/0x117 mm/kasan/report.c:459
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x1a3/0x210 mm/kasan/generic.c:189
 memcpy+0x23/0x60 mm/kasan/shadow.c:65
 memcpy include/linux/fortify-string.h:191 [inline]
 sg_copy_buffer+0x1de/0x240 lib/scatterlist.c:976
 sg_copy_from_buffer+0x33/0x40 lib/scatterlist.c:1000
 fill_from_dev_buffer.part.34+0x82/0x130 drivers/scsi/scsi_debug.c:1162
 fill_from_dev_buffer drivers/scsi/scsi_debug.c:1888 [inline]
 resp_readcap16+0x365/0x3b0 drivers/scsi/scsi_debug.c:1887
 schedule_resp+0x4d8/0x1a70 drivers/scsi/scsi_debug.c:5478
 scsi_debug_queuecommand+0x8c9/0x1ec0 drivers/scsi/scsi_debug.c:7533
 scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1520 [inline]
 scsi_queue_rq+0x16b0/0x2d40 drivers/scsi/scsi_lib.c:1699
 blk_mq_dispatch_rq_list+0xb9b/0x2700 block/blk-mq.c:1639
 __blk_mq_sched_dispatch_requests+0x28f/0x590 block/blk-mq-sched.c:325
 blk_mq_sched_dispatch_requests+0x105/0x190 block/blk-mq-sched.c:358
 __blk_mq_run_hw_queue+0xe5/0x150 block/blk-mq.c:1761
 __blk_mq_delay_run_hw_queue+0x4f8/0x5c0 block/blk-mq.c:1838
 blk_mq_run_hw_queue+0x18d/0x350 block/blk-mq.c:1891
 blk_mq_sched_insert_request+0x3db/0x4e0 block/blk-mq-sched.c:474
 blk_execute_rq_nowait+0x16b/0x1c0 block/blk-exec.c:62
 sg_common_write.isra.18+0xeb3/0x2000 drivers/scsi/sg.c:836
 sg_new_write.isra.19+0x570/0x8c0 drivers/scsi/sg.c:774
 sg_ioctl_common+0x14d6/0x2710 drivers/scsi/sg.c:939
 sg_ioctl+0xa2/0x180 drivers/scsi/sg.c:1165
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Link: https://lore.kernel.org/r/1636484247-21254-1-git-send-email-george.kennedy@oracle.com
Reported-by: syzkaller <syzkaller@googlegroups.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi_debug.c | 34 +++++++++++++++++++---------------
 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index b9db6c8225128..501f31e8a9920 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1188,7 +1188,7 @@ static int p_fill_from_dev_buffer(struct scsi_cmnd *scp, const void *arr,
 		 __func__, off_dst, scsi_bufflen(scp), act_len,
 		 scsi_get_resid(scp));
 	n = scsi_bufflen(scp) - (off_dst + act_len);
-	scsi_set_resid(scp, min_t(int, scsi_get_resid(scp), n));
+	scsi_set_resid(scp, min_t(u32, scsi_get_resid(scp), n));
 	return 0;
 }
 
@@ -1561,7 +1561,8 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 	unsigned char pq_pdt;
 	unsigned char *arr;
 	unsigned char *cmd = scp->cmnd;
-	int alloc_len, n, ret;
+	u32 alloc_len, n;
+	int ret;
 	bool have_wlun, is_disk, is_zbc, is_disk_zbc;
 
 	alloc_len = get_unaligned_be16(cmd + 3);
@@ -1584,7 +1585,8 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 		kfree(arr);
 		return check_condition_result;
 	} else if (0x1 & cmd[1]) {  /* EVPD bit set */
-		int lu_id_num, port_group_id, target_dev_id, len;
+		int lu_id_num, port_group_id, target_dev_id;
+		u32 len;
 		char lu_id_str[6];
 		int host_no = devip->sdbg_host->shost->host_no;
 		
@@ -1675,9 +1677,9 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 			kfree(arr);
 			return check_condition_result;
 		}
-		len = min(get_unaligned_be16(arr + 2) + 4, alloc_len);
+		len = min_t(u32, get_unaligned_be16(arr + 2) + 4, alloc_len);
 		ret = fill_from_dev_buffer(scp, arr,
-			    min(len, SDEBUG_MAX_INQ_ARR_SZ));
+			    min_t(u32, len, SDEBUG_MAX_INQ_ARR_SZ));
 		kfree(arr);
 		return ret;
 	}
@@ -1713,7 +1715,7 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 	}
 	put_unaligned_be16(0x2100, arr + n);	/* SPL-4 no version claimed */
 	ret = fill_from_dev_buffer(scp, arr,
-			    min_t(int, alloc_len, SDEBUG_LONG_INQ_SZ));
+			    min_t(u32, alloc_len, SDEBUG_LONG_INQ_SZ));
 	kfree(arr);
 	return ret;
 }
@@ -1728,8 +1730,8 @@ static int resp_requests(struct scsi_cmnd *scp,
 	unsigned char *cmd = scp->cmnd;
 	unsigned char arr[SCSI_SENSE_BUFFERSIZE];	/* assume >= 18 bytes */
 	bool dsense = !!(cmd[1] & 1);
-	int alloc_len = cmd[4];
-	int len = 18;
+	u32 alloc_len = cmd[4];
+	u32 len = 18;
 	int stopped_state = atomic_read(&devip->stopped);
 
 	memset(arr, 0, sizeof(arr));
@@ -1773,7 +1775,7 @@ static int resp_requests(struct scsi_cmnd *scp,
 			arr[7] = 0xa;
 		}
 	}
-	return fill_from_dev_buffer(scp, arr, min_t(int, len, alloc_len));
+	return fill_from_dev_buffer(scp, arr, min_t(u32, len, alloc_len));
 }
 
 static int resp_start_stop(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
@@ -2311,7 +2313,8 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 {
 	int pcontrol, pcode, subpcode, bd_len;
 	unsigned char dev_spec;
-	int alloc_len, offset, len, target_dev_id;
+	u32 alloc_len, offset, len;
+	int target_dev_id;
 	int target = scp->device->id;
 	unsigned char *ap;
 	unsigned char arr[SDEBUG_MAX_MSENSE_SZ];
@@ -2467,7 +2470,7 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		arr[0] = offset - 1;
 	else
 		put_unaligned_be16((offset - 2), arr + 0);
-	return fill_from_dev_buffer(scp, arr, min_t(int, alloc_len, offset));
+	return fill_from_dev_buffer(scp, arr, min_t(u32, alloc_len, offset));
 }
 
 #define SDEBUG_MAX_MSELECT_SZ 512
@@ -2582,7 +2585,8 @@ static int resp_ie_l_pg(unsigned char *arr)
 static int resp_log_sense(struct scsi_cmnd *scp,
 			  struct sdebug_dev_info *devip)
 {
-	int ppc, sp, pcode, subpcode, alloc_len, len, n;
+	int ppc, sp, pcode, subpcode;
+	u32 alloc_len, len, n;
 	unsigned char arr[SDEBUG_MAX_LSENSE_SZ];
 	unsigned char *cmd = scp->cmnd;
 
@@ -2652,9 +2656,9 @@ static int resp_log_sense(struct scsi_cmnd *scp,
 		mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
 		return check_condition_result;
 	}
-	len = min_t(int, get_unaligned_be16(arr + 2) + 4, alloc_len);
+	len = min_t(u32, get_unaligned_be16(arr + 2) + 4, alloc_len);
 	return fill_from_dev_buffer(scp, arr,
-		    min_t(int, len, SDEBUG_MAX_INQ_ARR_SZ));
+		    min_t(u32, len, SDEBUG_MAX_INQ_ARR_SZ));
 }
 
 static inline bool sdebug_dev_is_zoned(struct sdebug_dev_info *devip)
@@ -4409,7 +4413,7 @@ static int resp_report_zones(struct scsi_cmnd *scp,
 	put_unaligned_be64(sdebug_capacity - 1, arr + 8);
 
 	rep_len = (unsigned long)desc - (unsigned long)arr;
-	ret = fill_from_dev_buffer(scp, arr, min_t(int, alloc_len, rep_len));
+	ret = fill_from_dev_buffer(scp, arr, min_t(u32, alloc_len, rep_len));
 
 fini:
 	read_unlock(macc_lckp);
-- 
GitLab


From a9078e791426c2cbbdf28a320c3670f6e0a611e6 Mon Sep 17 00:00:00 2001
From: George Kennedy <george.kennedy@oracle.com>
Date: Thu, 18 Nov 2021 14:03:28 -0500
Subject: [PATCH 2382/4878] scsi: scsi_debug: Sanity check block descriptor
 length in resp_mode_select()

commit e0a2c28da11e2c2b963fc01d50acbf03045ac732 upstream.

In resp_mode_select() sanity check the block descriptor len to avoid UAF.

BUG: KASAN: use-after-free in resp_mode_select+0xa4c/0xb40 drivers/scsi/scsi_debug.c:2509
Read of size 1 at addr ffff888026670f50 by task scsicmd/15032

CPU: 1 PID: 15032 Comm: scsicmd Not tainted 5.15.0-01d0625 #15
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
Call Trace:
 <TASK>
 dump_stack_lvl+0x89/0xb5 lib/dump_stack.c:107
 print_address_description.constprop.9+0x28/0x160 mm/kasan/report.c:257
 kasan_report.cold.14+0x7d/0x117 mm/kasan/report.c:443
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report_generic.c:306
 resp_mode_select+0xa4c/0xb40 drivers/scsi/scsi_debug.c:2509
 schedule_resp+0x4af/0x1a10 drivers/scsi/scsi_debug.c:5483
 scsi_debug_queuecommand+0x8c9/0x1e70 drivers/scsi/scsi_debug.c:7537
 scsi_queue_rq+0x16b4/0x2d10 drivers/scsi/scsi_lib.c:1521
 blk_mq_dispatch_rq_list+0xb9b/0x2700 block/blk-mq.c:1640
 __blk_mq_sched_dispatch_requests+0x28f/0x590 block/blk-mq-sched.c:325
 blk_mq_sched_dispatch_requests+0x105/0x190 block/blk-mq-sched.c:358
 __blk_mq_run_hw_queue+0xe5/0x150 block/blk-mq.c:1762
 __blk_mq_delay_run_hw_queue+0x4f8/0x5c0 block/blk-mq.c:1839
 blk_mq_run_hw_queue+0x18d/0x350 block/blk-mq.c:1891
 blk_mq_sched_insert_request+0x3db/0x4e0 block/blk-mq-sched.c:474
 blk_execute_rq_nowait+0x16b/0x1c0 block/blk-exec.c:63
 sg_common_write.isra.18+0xeb3/0x2000 drivers/scsi/sg.c:837
 sg_new_write.isra.19+0x570/0x8c0 drivers/scsi/sg.c:775
 sg_ioctl_common+0x14d6/0x2710 drivers/scsi/sg.c:941
 sg_ioctl+0xa2/0x180 drivers/scsi/sg.c:1166
 __x64_sys_ioctl+0x19d/0x220 fs/ioctl.c:52
 do_syscall_64+0x3a/0x80 arch/x86/entry/common.c:50
 entry_SYSCALL_64_after_hwframe+0x44/0xae arch/x86/entry/entry_64.S:113

Link: https://lore.kernel.org/r/1637262208-28850-1-git-send-email-george.kennedy@oracle.com
Reported-by: syzkaller <syzkaller@googlegroups.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi_debug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 501f31e8a9920..6b00de6b6f0ef 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -2501,11 +2501,11 @@ static int resp_mode_select(struct scsi_cmnd *scp,
 			    __func__, param_len, res);
 	md_len = mselect6 ? (arr[0] + 1) : (get_unaligned_be16(arr + 0) + 2);
 	bd_len = mselect6 ? arr[3] : get_unaligned_be16(arr + 6);
-	if (md_len > 2) {
+	off = bd_len + (mselect6 ? 4 : 8);
+	if (md_len > 2 || off >= res) {
 		mk_sense_invalid_fld(scp, SDEB_IN_DATA, 0, -1);
 		return check_condition_result;
 	}
-	off = bd_len + (mselect6 ? 4 : 8);
 	mpage = arr[off] & 0x3f;
 	ps = !!(arr[off] & 0x80);
 	if (ps) {
-- 
GitLab


From 70692b06208c09c3cc2a0de2aaef63f4f139970a Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@kernel.org>
Date: Tue, 20 Jul 2021 06:16:27 -0700
Subject: [PATCH 2383/4878] rcu: Mark accesses to rcu_state.n_force_qs

commit 2431774f04d1050292054c763070021bade7b151 upstream.

This commit marks accesses to the rcu_state.n_force_qs.  These data
races are hard to make happen, but syzkaller was equal to the task.

Reported-by: syzbot+e08a83a1940ec3846cd5@syzkaller.appspotmail.com
Acked-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/rcu/tree.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 8c81c05c4236a..b74e7ace4376b 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1888,7 +1888,7 @@ static void rcu_gp_fqs(bool first_time)
 	struct rcu_node *rnp = rcu_get_root();
 
 	WRITE_ONCE(rcu_state.gp_activity, jiffies);
-	rcu_state.n_force_qs++;
+	WRITE_ONCE(rcu_state.n_force_qs, rcu_state.n_force_qs + 1);
 	if (first_time) {
 		/* Collect dyntick-idle snapshots. */
 		force_qs_rnp(dyntick_save_progress_counter);
@@ -2530,7 +2530,7 @@ static void rcu_do_batch(struct rcu_data *rdp)
 	/* Reset ->qlen_last_fqs_check trigger if enough CBs have drained. */
 	if (count == 0 && rdp->qlen_last_fqs_check != 0) {
 		rdp->qlen_last_fqs_check = 0;
-		rdp->n_force_qs_snap = rcu_state.n_force_qs;
+		rdp->n_force_qs_snap = READ_ONCE(rcu_state.n_force_qs);
 	} else if (count < rdp->qlen_last_fqs_check - qhimark)
 		rdp->qlen_last_fqs_check = count;
 
@@ -2876,10 +2876,10 @@ static void __call_rcu_core(struct rcu_data *rdp, struct rcu_head *head,
 		} else {
 			/* Give the grace period a kick. */
 			rdp->blimit = DEFAULT_MAX_RCU_BLIMIT;
-			if (rcu_state.n_force_qs == rdp->n_force_qs_snap &&
+			if (READ_ONCE(rcu_state.n_force_qs) == rdp->n_force_qs_snap &&
 			    rcu_segcblist_first_pend_cb(&rdp->cblist) != head)
 				rcu_force_quiescent_state();
-			rdp->n_force_qs_snap = rcu_state.n_force_qs;
+			rdp->n_force_qs_snap = READ_ONCE(rcu_state.n_force_qs);
 			rdp->qlen_last_fqs_check = rcu_segcblist_n_cbs(&rdp->cblist);
 		}
 	}
@@ -3986,7 +3986,7 @@ int rcutree_prepare_cpu(unsigned int cpu)
 	/* Set up local state, ensuring consistent view of global state. */
 	raw_spin_lock_irqsave_rcu_node(rnp, flags);
 	rdp->qlen_last_fqs_check = 0;
-	rdp->n_force_qs_snap = rcu_state.n_force_qs;
+	rdp->n_force_qs_snap = READ_ONCE(rcu_state.n_force_qs);
 	rdp->blimit = blimit;
 	if (rcu_segcblist_empty(&rdp->cblist) && /* No early-boot CBs? */
 	    !rcu_segcblist_is_offloaded(&rdp->cblist))
-- 
GitLab


From e24fc8983025565e24f9438d3d514c280fecb0b7 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 6 Oct 2021 08:38:09 +0300
Subject: [PATCH 2384/4878] bus: ti-sysc: Fix variable set but not used warning
 for reinit_modules

commit 1b1da99b845337362a3dafe0f7b49927ab4ae041 upstream.

Fix drivers/bus/ti-sysc.c:2494:13: error: variable 'error' set but not
used introduced by commit 9d881361206e ("bus: ti-sysc: Add quirk handling
for reinit on context lost").

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bus/ti-sysc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 43603dc9da430..18f0650c5d405 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -2443,12 +2443,11 @@ static void sysc_reinit_modules(struct sysc_soc_info *soc)
 	struct sysc_module *module;
 	struct list_head *pos;
 	struct sysc *ddata;
-	int error = 0;
 
 	list_for_each(pos, &sysc_soc->restored_modules) {
 		module = list_entry(pos, struct sysc_module, node);
 		ddata = module->ddata;
-		error = sysc_reinit_module(ddata, ddata->enabled);
+		sysc_reinit_module(ddata, ddata->enabled);
 	}
 }
 
-- 
GitLab


From 76ec7fe2d866b1299f759e0eb87443b03fced0ad Mon Sep 17 00:00:00 2001
From: Magnus Karlsson <magnus.karlsson@intel.com>
Date: Fri, 17 Dec 2021 15:56:46 +0100
Subject: [PATCH 2385/4878] Revert "xsk: Do not sleep in poll() when
 need_wakeup set"

commit 0706a78f31c4217ca144f630063ec9561a21548d upstream.

This reverts commit bd0687c18e635b63233dc87f38058cd728802ab4.

This patch causes a Tx only workload to go to sleep even when it does
not have to, leading to misserable performance in skb mode. It fixed
one rare problem but created a much worse one, so this need to be
reverted while I try to craft a proper solution to the original
problem.

Fixes: bd0687c18e63 ("xsk: Do not sleep in poll() when need_wakeup set")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211217145646.26449-1-magnus.karlsson@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/xdp/xsk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 12112f4b9f7ce..ca4716b92774b 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -499,6 +499,8 @@ static __poll_t xsk_poll(struct file *file, struct socket *sock,
 	struct xdp_sock *xs = xdp_sk(sk);
 	struct xsk_buff_pool *pool;
 
+	sock_poll_wait(file, sock, wait);
+
 	if (unlikely(!xsk_is_bound(xs)))
 		return mask;
 
@@ -510,8 +512,6 @@ static __poll_t xsk_poll(struct file *file, struct socket *sock,
 		else
 			/* Poll needs to drive Tx also in copy mode */
 			__xsk_sendmsg(sk);
-	} else {
-		sock_poll_wait(file, sock, wait);
 	}
 
 	if (xs->rx && !xskq_prod_is_empty(xs->rx))
-- 
GitLab


From 8ac3b6ee7c9ff2df7c99624bb1235e2e55623825 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 16 Dec 2021 08:24:08 +0100
Subject: [PATCH 2386/4878] xen/blkfront: harden blkfront against event channel
 storms

commit 0fd08a34e8e3b67ec9bd8287ac0facf8374b844a upstream.

The Xen blkfront driver is still vulnerable for an attack via excessive
number of events sent by the backend. Fix that by using lateeoi event
channels.

This is part of XSA-391

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/xen-blkfront.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index ff7b62597b525..22842d2938c28 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1573,9 +1573,12 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 	unsigned long flags;
 	struct blkfront_ring_info *rinfo = (struct blkfront_ring_info *)dev_id;
 	struct blkfront_info *info = rinfo->dev_info;
+	unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS;
 
-	if (unlikely(info->connected != BLKIF_STATE_CONNECTED))
+	if (unlikely(info->connected != BLKIF_STATE_CONNECTED)) {
+		xen_irq_lateeoi(irq, XEN_EOI_FLAG_SPURIOUS);
 		return IRQ_HANDLED;
+	}
 
 	spin_lock_irqsave(&rinfo->ring_lock, flags);
  again:
@@ -1591,6 +1594,8 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		unsigned long id;
 		unsigned int op;
 
+		eoiflag = 0;
+
 		RING_COPY_RESPONSE(&rinfo->ring, i, &bret);
 		id = bret.id;
 
@@ -1707,6 +1712,8 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 
 	spin_unlock_irqrestore(&rinfo->ring_lock, flags);
 
+	xen_irq_lateeoi(irq, eoiflag);
+
 	return IRQ_HANDLED;
 
  err:
@@ -1714,6 +1721,8 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 
 	spin_unlock_irqrestore(&rinfo->ring_lock, flags);
 
+	/* No EOI in order to avoid further interrupts. */
+
 	pr_alert("%s disabled for further use\n", info->gd->disk_name);
 	return IRQ_HANDLED;
 }
@@ -1753,8 +1762,8 @@ static int setup_blkring(struct xenbus_device *dev,
 	if (err)
 		goto fail;
 
-	err = bind_evtchn_to_irqhandler(rinfo->evtchn, blkif_interrupt, 0,
-					"blkif", rinfo);
+	err = bind_evtchn_to_irqhandler_lateeoi(rinfo->evtchn, blkif_interrupt,
+						0, "blkif", rinfo);
 	if (err <= 0) {
 		xenbus_dev_fatal(dev, err,
 				 "bind_evtchn_to_irqhandler failed");
-- 
GitLab


From d31b3379179d64724d3bbfa87bd4ada94e3237de Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 16 Dec 2021 08:24:08 +0100
Subject: [PATCH 2387/4878] xen/netfront: harden netfront against event channel
 storms

commit b27d47950e481f292c0a5ad57357edb9d95d03ba upstream.

The Xen netfront driver is still vulnerable for an attack via excessive
number of events sent by the backend. Fix that by using lateeoi event
channels.

For being able to detect the case of no rx responses being added while
the carrier is down a new lock is needed in order to update and test
rsp_cons and the number of seen unconsumed responses atomically.

This is part of XSA-391

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 125 ++++++++++++++++++++++++++++---------
 1 file changed, 94 insertions(+), 31 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 8505024b89e9e..fce3a90a335cb 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -148,6 +148,9 @@ struct netfront_queue {
 	grant_ref_t gref_rx_head;
 	grant_ref_t grant_rx_ref[NET_RX_RING_SIZE];
 
+	unsigned int rx_rsp_unconsumed;
+	spinlock_t rx_cons_lock;
+
 	struct page_pool *page_pool;
 	struct xdp_rxq_info xdp_rxq;
 };
@@ -376,12 +379,13 @@ static int xennet_open(struct net_device *dev)
 	return 0;
 }
 
-static void xennet_tx_buf_gc(struct netfront_queue *queue)
+static bool xennet_tx_buf_gc(struct netfront_queue *queue)
 {
 	RING_IDX cons, prod;
 	unsigned short id;
 	struct sk_buff *skb;
 	bool more_to_do;
+	bool work_done = false;
 	const struct device *dev = &queue->info->netdev->dev;
 
 	BUG_ON(!netif_carrier_ok(queue->info->netdev));
@@ -398,6 +402,8 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 		for (cons = queue->tx.rsp_cons; cons != prod; cons++) {
 			struct xen_netif_tx_response txrsp;
 
+			work_done = true;
+
 			RING_COPY_RESPONSE(&queue->tx, cons, &txrsp);
 			if (txrsp.status == XEN_NETIF_RSP_NULL)
 				continue;
@@ -441,11 +447,13 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue)
 
 	xennet_maybe_wake_tx(queue);
 
-	return;
+	return work_done;
 
  err:
 	queue->info->broken = true;
 	dev_alert(dev, "Disabled for further use\n");
+
+	return work_done;
 }
 
 struct xennet_gnttab_make_txreq {
@@ -836,6 +844,16 @@ static int xennet_close(struct net_device *dev)
 	return 0;
 }
 
+static void xennet_set_rx_rsp_cons(struct netfront_queue *queue, RING_IDX val)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&queue->rx_cons_lock, flags);
+	queue->rx.rsp_cons = val;
+	queue->rx_rsp_unconsumed = RING_HAS_UNCONSUMED_RESPONSES(&queue->rx);
+	spin_unlock_irqrestore(&queue->rx_cons_lock, flags);
+}
+
 static void xennet_move_rx_slot(struct netfront_queue *queue, struct sk_buff *skb,
 				grant_ref_t ref)
 {
@@ -887,7 +905,7 @@ static int xennet_get_extras(struct netfront_queue *queue,
 		xennet_move_rx_slot(queue, skb, ref);
 	} while (extra.flags & XEN_NETIF_EXTRA_FLAG_MORE);
 
-	queue->rx.rsp_cons = cons;
+	xennet_set_rx_rsp_cons(queue, cons);
 	return err;
 }
 
@@ -1041,7 +1059,7 @@ next:
 	}
 
 	if (unlikely(err))
-		queue->rx.rsp_cons = cons + slots;
+		xennet_set_rx_rsp_cons(queue, cons + slots);
 
 	return err;
 }
@@ -1095,7 +1113,8 @@ static int xennet_fill_frags(struct netfront_queue *queue,
 			__pskb_pull_tail(skb, pull_to - skb_headlen(skb));
 		}
 		if (unlikely(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS)) {
-			queue->rx.rsp_cons = ++cons + skb_queue_len(list);
+			xennet_set_rx_rsp_cons(queue,
+					       ++cons + skb_queue_len(list));
 			kfree_skb(nskb);
 			return -ENOENT;
 		}
@@ -1108,7 +1127,7 @@ static int xennet_fill_frags(struct netfront_queue *queue,
 		kfree_skb(nskb);
 	}
 
-	queue->rx.rsp_cons = cons;
+	xennet_set_rx_rsp_cons(queue, cons);
 
 	return 0;
 }
@@ -1231,7 +1250,9 @@ err:
 
 			if (unlikely(xennet_set_skb_gso(skb, gso))) {
 				__skb_queue_head(&tmpq, skb);
-				queue->rx.rsp_cons += skb_queue_len(&tmpq);
+				xennet_set_rx_rsp_cons(queue,
+						       queue->rx.rsp_cons +
+						       skb_queue_len(&tmpq));
 				goto err;
 			}
 		}
@@ -1255,7 +1276,8 @@ err:
 
 		__skb_queue_tail(&rxq, skb);
 
-		i = ++queue->rx.rsp_cons;
+		i = queue->rx.rsp_cons + 1;
+		xennet_set_rx_rsp_cons(queue, i);
 		work_done++;
 	}
 	if (need_xdp_flush)
@@ -1419,40 +1441,79 @@ static int xennet_set_features(struct net_device *dev,
 	return 0;
 }
 
-static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id)
+static bool xennet_handle_tx(struct netfront_queue *queue, unsigned int *eoi)
 {
-	struct netfront_queue *queue = dev_id;
 	unsigned long flags;
 
-	if (queue->info->broken)
-		return IRQ_HANDLED;
+	if (unlikely(queue->info->broken))
+		return false;
 
 	spin_lock_irqsave(&queue->tx_lock, flags);
-	xennet_tx_buf_gc(queue);
+	if (xennet_tx_buf_gc(queue))
+		*eoi = 0;
 	spin_unlock_irqrestore(&queue->tx_lock, flags);
 
+	return true;
+}
+
+static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id)
+{
+	unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS;
+
+	if (likely(xennet_handle_tx(dev_id, &eoiflag)))
+		xen_irq_lateeoi(irq, eoiflag);
+
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id)
+static bool xennet_handle_rx(struct netfront_queue *queue, unsigned int *eoi)
 {
-	struct netfront_queue *queue = dev_id;
-	struct net_device *dev = queue->info->netdev;
+	unsigned int work_queued;
+	unsigned long flags;
 
-	if (queue->info->broken)
-		return IRQ_HANDLED;
+	if (unlikely(queue->info->broken))
+		return false;
+
+	spin_lock_irqsave(&queue->rx_cons_lock, flags);
+	work_queued = RING_HAS_UNCONSUMED_RESPONSES(&queue->rx);
+	if (work_queued > queue->rx_rsp_unconsumed) {
+		queue->rx_rsp_unconsumed = work_queued;
+		*eoi = 0;
+	} else if (unlikely(work_queued < queue->rx_rsp_unconsumed)) {
+		const struct device *dev = &queue->info->netdev->dev;
+
+		spin_unlock_irqrestore(&queue->rx_cons_lock, flags);
+		dev_alert(dev, "RX producer index going backwards\n");
+		dev_alert(dev, "Disabled for further use\n");
+		queue->info->broken = true;
+		return false;
+	}
+	spin_unlock_irqrestore(&queue->rx_cons_lock, flags);
 
-	if (likely(netif_carrier_ok(dev) &&
-		   RING_HAS_UNCONSUMED_RESPONSES(&queue->rx)))
+	if (likely(netif_carrier_ok(queue->info->netdev) && work_queued))
 		napi_schedule(&queue->napi);
 
+	return true;
+}
+
+static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id)
+{
+	unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS;
+
+	if (likely(xennet_handle_rx(dev_id, &eoiflag)))
+		xen_irq_lateeoi(irq, eoiflag);
+
 	return IRQ_HANDLED;
 }
 
 static irqreturn_t xennet_interrupt(int irq, void *dev_id)
 {
-	xennet_tx_interrupt(irq, dev_id);
-	xennet_rx_interrupt(irq, dev_id);
+	unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS;
+
+	if (xennet_handle_tx(dev_id, &eoiflag) &&
+	    xennet_handle_rx(dev_id, &eoiflag))
+		xen_irq_lateeoi(irq, eoiflag);
+
 	return IRQ_HANDLED;
 }
 
@@ -1770,9 +1831,10 @@ static int setup_netfront_single(struct netfront_queue *queue)
 	if (err < 0)
 		goto fail;
 
-	err = bind_evtchn_to_irqhandler(queue->tx_evtchn,
-					xennet_interrupt,
-					0, queue->info->netdev->name, queue);
+	err = bind_evtchn_to_irqhandler_lateeoi(queue->tx_evtchn,
+						xennet_interrupt, 0,
+						queue->info->netdev->name,
+						queue);
 	if (err < 0)
 		goto bind_fail;
 	queue->rx_evtchn = queue->tx_evtchn;
@@ -1800,18 +1862,18 @@ static int setup_netfront_split(struct netfront_queue *queue)
 
 	snprintf(queue->tx_irq_name, sizeof(queue->tx_irq_name),
 		 "%s-tx", queue->name);
-	err = bind_evtchn_to_irqhandler(queue->tx_evtchn,
-					xennet_tx_interrupt,
-					0, queue->tx_irq_name, queue);
+	err = bind_evtchn_to_irqhandler_lateeoi(queue->tx_evtchn,
+						xennet_tx_interrupt, 0,
+						queue->tx_irq_name, queue);
 	if (err < 0)
 		goto bind_tx_fail;
 	queue->tx_irq = err;
 
 	snprintf(queue->rx_irq_name, sizeof(queue->rx_irq_name),
 		 "%s-rx", queue->name);
-	err = bind_evtchn_to_irqhandler(queue->rx_evtchn,
-					xennet_rx_interrupt,
-					0, queue->rx_irq_name, queue);
+	err = bind_evtchn_to_irqhandler_lateeoi(queue->rx_evtchn,
+						xennet_rx_interrupt, 0,
+						queue->rx_irq_name, queue);
 	if (err < 0)
 		goto bind_rx_fail;
 	queue->rx_irq = err;
@@ -1913,6 +1975,7 @@ static int xennet_init_queue(struct netfront_queue *queue)
 
 	spin_lock_init(&queue->tx_lock);
 	spin_lock_init(&queue->rx_lock);
+	spin_lock_init(&queue->rx_cons_lock);
 
 	timer_setup(&queue->rx_refill_timer, rx_refill_timeout, 0);
 
-- 
GitLab


From 8fa3a370cc2af858a9ba662ca4f2bd0917550563 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 16 Dec 2021 08:24:08 +0100
Subject: [PATCH 2388/4878] xen/console: harden hvc_xen against event channel
 storms

commit fe415186b43df0db1f17fa3a46275fd92107fe71 upstream.

The Xen console driver is still vulnerable for an attack via excessive
number of events sent by the backend. Fix that by using a lateeoi event
channel.

For the normal domU initial console this requires the introduction of
bind_evtchn_to_irq_lateeoi() as there is no xenbus device available
at the time the event channel is bound to the irq.

As the decision whether an interrupt was spurious or not requires to
test for bytes having been read from the backend, move sending the
event into the if statement, as sending an event without having found
any bytes to be read is making no sense at all.

This is part of XSA-391

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/hvc/hvc_xen.c | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 8f143c09a1696..7948660e042fd 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -37,6 +37,8 @@ struct xencons_info {
 	struct xenbus_device *xbdev;
 	struct xencons_interface *intf;
 	unsigned int evtchn;
+	XENCONS_RING_IDX out_cons;
+	unsigned int out_cons_same;
 	struct hvc_struct *hvc;
 	int irq;
 	int vtermno;
@@ -138,6 +140,8 @@ static int domU_read_console(uint32_t vtermno, char *buf, int len)
 	XENCONS_RING_IDX cons, prod;
 	int recv = 0;
 	struct xencons_info *xencons = vtermno_to_xencons(vtermno);
+	unsigned int eoiflag = 0;
+
 	if (xencons == NULL)
 		return -EINVAL;
 	intf = xencons->intf;
@@ -157,7 +161,27 @@ static int domU_read_console(uint32_t vtermno, char *buf, int len)
 	mb();			/* read ring before consuming */
 	intf->in_cons = cons;
 
-	notify_daemon(xencons);
+	/*
+	 * When to mark interrupt having been spurious:
+	 * - there was no new data to be read, and
+	 * - the backend did not consume some output bytes, and
+	 * - the previous round with no read data didn't see consumed bytes
+	 *   (we might have a race with an interrupt being in flight while
+	 *   updating xencons->out_cons, so account for that by allowing one
+	 *   round without any visible reason)
+	 */
+	if (intf->out_cons != xencons->out_cons) {
+		xencons->out_cons = intf->out_cons;
+		xencons->out_cons_same = 0;
+	}
+	if (recv) {
+		notify_daemon(xencons);
+	} else if (xencons->out_cons_same++ > 1) {
+		eoiflag = XEN_EOI_FLAG_SPURIOUS;
+	}
+
+	xen_irq_lateeoi(xencons->irq, eoiflag);
+
 	return recv;
 }
 
@@ -386,7 +410,7 @@ static int xencons_connect_backend(struct xenbus_device *dev,
 	if (ret)
 		return ret;
 	info->evtchn = evtchn;
-	irq = bind_evtchn_to_irq(evtchn);
+	irq = bind_interdomain_evtchn_to_irq_lateeoi(dev->otherend_id, evtchn);
 	if (irq < 0)
 		return irq;
 	info->irq = irq;
@@ -550,7 +574,7 @@ static int __init xen_hvc_init(void)
 			return r;
 
 		info = vtermno_to_xencons(HVC_COOKIE);
-		info->irq = bind_evtchn_to_irq(info->evtchn);
+		info->irq = bind_evtchn_to_irq_lateeoi(info->evtchn);
 	}
 	if (info->irq < 0)
 		info->irq = 0; /* NO_IRQ */
-- 
GitLab


From 525875c410df5d876b9615c44885ca7640aed6f2 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 16 Dec 2021 08:25:12 +0100
Subject: [PATCH 2389/4878] xen/netback: fix rx queue stall detection

commit 6032046ec4b70176d247a71836186d47b25d1684 upstream.

Commit 1d5d48523900a4b ("xen-netback: require fewer guest Rx slots when
not using GSO") introduced a security problem in netback, as an
interface would only be regarded to be stalled if no slot is available
in the rx queue ring page. In case the SKB at the head of the queued
requests will need more than one rx slot and only one slot is free the
stall detection logic will never trigger, as the test for that is only
looking for at least one slot to be free.

Fix that by testing for the needed number of slots instead of only one
slot being available.

In order to not have to take the rx queue lock that often, store the
number of needed slots in the queue data. As all SKB dequeue operations
happen in the rx queue kernel thread this is safe, as long as the
number of needed slots is accessed via READ/WRITE_ONCE() only and
updates are always done with the rx queue lock held.

Add a small helper for obtaining the number of free slots.

This is part of XSA-392

Fixes: 1d5d48523900a4b ("xen-netback: require fewer guest Rx slots when not using GSO")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netback/common.h |  1 +
 drivers/net/xen-netback/rx.c     | 65 ++++++++++++++++++++------------
 2 files changed, 42 insertions(+), 24 deletions(-)

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index 8ee24e351bdc2..6a9178896c909 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -203,6 +203,7 @@ struct xenvif_queue { /* Per-queue data for xenvif */
 	unsigned int rx_queue_max;
 	unsigned int rx_queue_len;
 	unsigned long last_rx_time;
+	unsigned int rx_slots_needed;
 	bool stalled;
 
 	struct xenvif_copy_state rx_copy;
diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c
index accc991d153f7..a8511e27d6c13 100644
--- a/drivers/net/xen-netback/rx.c
+++ b/drivers/net/xen-netback/rx.c
@@ -33,28 +33,36 @@
 #include <xen/xen.h>
 #include <xen/events.h>
 
-static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue)
+/*
+ * Update the needed ring page slots for the first SKB queued.
+ * Note that any call sequence outside the RX thread calling this function
+ * needs to wake up the RX thread via a call of xenvif_kick_thread()
+ * afterwards in order to avoid a race with putting the thread to sleep.
+ */
+static void xenvif_update_needed_slots(struct xenvif_queue *queue,
+				       const struct sk_buff *skb)
 {
-	RING_IDX prod, cons;
-	struct sk_buff *skb;
-	int needed;
-	unsigned long flags;
-
-	spin_lock_irqsave(&queue->rx_queue.lock, flags);
+	unsigned int needed = 0;
 
-	skb = skb_peek(&queue->rx_queue);
-	if (!skb) {
-		spin_unlock_irqrestore(&queue->rx_queue.lock, flags);
-		return false;
+	if (skb) {
+		needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE);
+		if (skb_is_gso(skb))
+			needed++;
+		if (skb->sw_hash)
+			needed++;
 	}
 
-	needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE);
-	if (skb_is_gso(skb))
-		needed++;
-	if (skb->sw_hash)
-		needed++;
+	WRITE_ONCE(queue->rx_slots_needed, needed);
+}
 
-	spin_unlock_irqrestore(&queue->rx_queue.lock, flags);
+static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue)
+{
+	RING_IDX prod, cons;
+	unsigned int needed;
+
+	needed = READ_ONCE(queue->rx_slots_needed);
+	if (!needed)
+		return false;
 
 	do {
 		prod = queue->rx.sring->req_prod;
@@ -80,6 +88,9 @@ void xenvif_rx_queue_tail(struct xenvif_queue *queue, struct sk_buff *skb)
 
 	spin_lock_irqsave(&queue->rx_queue.lock, flags);
 
+	if (skb_queue_empty(&queue->rx_queue))
+		xenvif_update_needed_slots(queue, skb);
+
 	__skb_queue_tail(&queue->rx_queue, skb);
 
 	queue->rx_queue_len += skb->len;
@@ -100,6 +111,8 @@ static struct sk_buff *xenvif_rx_dequeue(struct xenvif_queue *queue)
 
 	skb = __skb_dequeue(&queue->rx_queue);
 	if (skb) {
+		xenvif_update_needed_slots(queue, skb_peek(&queue->rx_queue));
+
 		queue->rx_queue_len -= skb->len;
 		if (queue->rx_queue_len < queue->rx_queue_max) {
 			struct netdev_queue *txq;
@@ -487,27 +500,31 @@ void xenvif_rx_action(struct xenvif_queue *queue)
 	xenvif_rx_copy_flush(queue);
 }
 
-static bool xenvif_rx_queue_stalled(struct xenvif_queue *queue)
+static RING_IDX xenvif_rx_queue_slots(const struct xenvif_queue *queue)
 {
 	RING_IDX prod, cons;
 
 	prod = queue->rx.sring->req_prod;
 	cons = queue->rx.req_cons;
 
+	return prod - cons;
+}
+
+static bool xenvif_rx_queue_stalled(const struct xenvif_queue *queue)
+{
+	unsigned int needed = READ_ONCE(queue->rx_slots_needed);
+
 	return !queue->stalled &&
-		prod - cons < 1 &&
+		xenvif_rx_queue_slots(queue) < needed &&
 		time_after(jiffies,
 			   queue->last_rx_time + queue->vif->stall_timeout);
 }
 
 static bool xenvif_rx_queue_ready(struct xenvif_queue *queue)
 {
-	RING_IDX prod, cons;
-
-	prod = queue->rx.sring->req_prod;
-	cons = queue->rx.req_cons;
+	unsigned int needed = READ_ONCE(queue->rx_slots_needed);
 
-	return queue->stalled && prod - cons >= 1;
+	return queue->stalled && xenvif_rx_queue_slots(queue) >= needed;
 }
 
 bool xenvif_have_rx_work(struct xenvif_queue *queue, bool test_kthread)
-- 
GitLab


From 88f20cccbeec9a5e83621df5cc2453b5081454dc Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Tue, 30 Nov 2021 08:36:12 +0100
Subject: [PATCH 2390/4878] xen/netback: don't queue unlimited number of
 packages

commit be81992f9086b230623ae3ebbc85ecee4d00a3d3 upstream.

In case a guest isn't consuming incoming network traffic as fast as it
is coming in, xen-netback is buffering network packages in unlimited
numbers today. This can result in host OOM situations.

Commit f48da8b14d04ca8 ("xen-netback: fix unlimited guest Rx internal
queue and carrier flapping") meant to introduce a mechanism to limit
the amount of buffered data by stopping the Tx queue when reaching the
data limit, but this doesn't work for cases like UDP.

When hitting the limit don't queue further SKBs, but drop them instead.
In order to be able to tell Rx packages have been dropped increment the
rx_dropped statistics counter in this case.

It should be noted that the old solution to continue queueing SKBs had
the additional problem of an overflow of the 32-bit rx_queue_len value
would result in intermittent Tx queue enabling.

This is part of XSA-392

Fixes: f48da8b14d04ca8 ("xen-netback: fix unlimited guest Rx internal queue and carrier flapping")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netback/rx.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c
index a8511e27d6c13..dbac4c03d21a1 100644
--- a/drivers/net/xen-netback/rx.c
+++ b/drivers/net/xen-netback/rx.c
@@ -88,16 +88,19 @@ void xenvif_rx_queue_tail(struct xenvif_queue *queue, struct sk_buff *skb)
 
 	spin_lock_irqsave(&queue->rx_queue.lock, flags);
 
-	if (skb_queue_empty(&queue->rx_queue))
-		xenvif_update_needed_slots(queue, skb);
-
-	__skb_queue_tail(&queue->rx_queue, skb);
-
-	queue->rx_queue_len += skb->len;
-	if (queue->rx_queue_len > queue->rx_queue_max) {
+	if (queue->rx_queue_len >= queue->rx_queue_max) {
 		struct net_device *dev = queue->vif->dev;
 
 		netif_tx_stop_queue(netdev_get_tx_queue(dev, queue->id));
+		kfree_skb(skb);
+		queue->vif->dev->stats.rx_dropped++;
+	} else {
+		if (skb_queue_empty(&queue->rx_queue))
+			xenvif_update_needed_slots(queue, skb);
+
+		__skb_queue_tail(&queue->rx_queue, skb);
+
+		queue->rx_queue_len += skb->len;
 	}
 
 	spin_unlock_irqrestore(&queue->rx_queue.lock, flags);
@@ -147,6 +150,7 @@ static void xenvif_rx_queue_drop_expired(struct xenvif_queue *queue)
 			break;
 		xenvif_rx_dequeue(queue);
 		kfree_skb(skb);
+		queue->vif->dev->stats.rx_dropped++;
 	}
 }
 
-- 
GitLab


From 856f88f27bbc4d3b4b88ce6fe23964ffe60ea649 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 22 Dec 2021 09:31:00 +0100
Subject: [PATCH 2391/4878] Linux 5.10.88

Link: https://lore.kernel.org/r/20211220143029.352940568@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index d627f4ae5af56..0b74b414f4e57 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 87
+SUBLEVEL = 88
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 659b186246b597b0f0bcc0859829c69eadda36a7 Mon Sep 17 00:00:00 2001
From: Hsiu-Chang Chen <hsiuchangchen@google.com>
Date: Thu, 23 Dec 2021 11:25:52 +0800
Subject: [PATCH 2392/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211824990
Signed-off-by: Hsiu-Chang Chen <hsiuchangchen@google.com>
Change-Id: I90c235bf3a3c3b1b9ebd1671a587edcc68212839
---
 android/abi_gki_aarch64_generic | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 6c18012780461..803ba388bae8a 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -61,11 +61,13 @@
   __bitmap_andnot
   __bitmap_clear
   __bitmap_equal
+  bitmap_find_next_zero_area_off
   bitmap_from_arr32
   __bitmap_or
   bitmap_parse
   bitmap_parselist
   bitmap_print_to_pagebuf
+  __bitmap_set
   bitmap_to_arr32
   __bitmap_weight
   blk_alloc_queue
@@ -1257,6 +1259,7 @@
   netif_receive_skb_list
   netif_rx
   netif_rx_ni
+  netif_schedule_queue
   netif_tx_stop_all_queues
   netif_tx_wake_queue
   netlink_broadcast
@@ -1796,6 +1799,7 @@
   skb_dequeue
   skb_dequeue_tail
   skb_free_datagram
+  __skb_get_hash
   __skb_pad
   skb_pull
   skb_push
-- 
GitLab


From 1a937b5e87e74b477910c7fdb09083f4baf81055 Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Mon, 27 Dec 2021 23:55:23 +0800
Subject: [PATCH 2393/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211546634
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: I3e7fcbf9a155ca4e6c1868d0da4989dacfe729be
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 803ba388bae8a..94218268f8839 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2084,6 +2084,7 @@
   __traceiter_android_vh_cma_alloc_start
   __traceiter_android_vh_cpu_idle_enter
   __traceiter_android_vh_cpu_idle_exit
+  __traceiter_android_vh_dup_task_struct
   __traceiter_android_vh_enable_thermal_genl_check
   __traceiter_android_vh_ep_create_wakeup_source
   __traceiter_android_vh_ipi_stop
@@ -2170,6 +2171,7 @@
   __tracepoint_android_vh_cma_alloc_start
   __tracepoint_android_vh_cpu_idle_enter
   __tracepoint_android_vh_cpu_idle_exit
+  __tracepoint_android_vh_dup_task_struct
   __tracepoint_android_vh_enable_thermal_genl_check
   __tracepoint_android_vh_ep_create_wakeup_source
   __tracepoint_android_vh_ipi_stop
-- 
GitLab


From b16b124a42e0c1daeafbea01094558f6cacbe059 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Tue, 20 Apr 2021 10:44:25 -0700
Subject: [PATCH 2394/4878] arm64: vdso32: drop -no-integrated-as flag

commit ef94340583eec5cb1544dc41a87baa4f684b3fe1 upstream.

Clang can assemble these files just fine; this is a relic from the top
level Makefile conditionally adding this. We no longer need --prefix,
--gcc-toolchain, or -Qunused-arguments flags either with this change, so
remove those too.

To test building:
$ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
  CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make LLVM=1 LLVM_IAS=1 \
  defconfig arch/arm64/kernel/vdso32/

Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210420174427.230228-1-ndesaulniers@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/vdso32/Makefile | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
index a463b9bceed41..4f38616abb638 100644
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -10,15 +10,7 @@ include $(srctree)/lib/vdso/Makefile
 
 # Same as cc-*option, but using CC_COMPAT instead of CC
 ifeq ($(CONFIG_CC_IS_CLANG), y)
-COMPAT_GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE_COMPAT)elfedit))
-COMPAT_GCC_TOOLCHAIN := $(realpath $(COMPAT_GCC_TOOLCHAIN_DIR)/..)
-
 CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
-CC_COMPAT_CLANG_FLAGS += --prefix=$(COMPAT_GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE_COMPAT))
-CC_COMPAT_CLANG_FLAGS += -no-integrated-as -Qunused-arguments
-ifneq ($(COMPAT_GCC_TOOLCHAIN),)
-CC_COMPAT_CLANG_FLAGS += --gcc-toolchain=$(COMPAT_GCC_TOOLCHAIN)
-endif
 
 CC_COMPAT ?= $(CC)
 CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS)
-- 
GitLab


From 8c0059a25cb1da1454354350ff1db5cb8e0ea326 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Tue, 19 Oct 2021 15:36:46 -0700
Subject: [PATCH 2395/4878] arm64: vdso32: require CROSS_COMPILE_COMPAT for
 gcc+bfd

commit 3e6f8d1fa18457d54b20917bd9174d27daf09ab9 upstream.

Similar to
commit 231ad7f409f1 ("Makefile: infer --target from ARCH for CC=clang")
There really is no point in setting --target based on
$CROSS_COMPILE_COMPAT for clang when the integrated assembler is being
used, since
commit ef94340583ee ("arm64: vdso32: drop -no-integrated-as flag").

Allows COMPAT_VDSO to be selected without setting $CROSS_COMPILE_COMPAT
when using clang and lld together.

Before:
$ ARCH=arm64 CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
CONFIG_COMPAT_VDSO=y
$ ARCH=arm64 make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
$

After:
$ ARCH=arm64 CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
CONFIG_COMPAT_VDSO=y
$ ARCH=arm64 make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
CONFIG_COMPAT_VDSO=y

Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20211019223646.1146945-5-ndesaulniers@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/Kconfig                |  3 ++-
 arch/arm64/kernel/vdso32/Makefile | 17 +++++------------
 2 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5e5cf3af63515..3da71fe56b922 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1265,7 +1265,8 @@ config KUSER_HELPERS
 
 config COMPAT_VDSO
 	bool "Enable vDSO for 32-bit applications"
-	depends on !CPU_BIG_ENDIAN && "$(CROSS_COMPILE_COMPAT)" != ""
+	depends on !CPU_BIG_ENDIAN
+	depends on (CC_IS_CLANG && LD_IS_LLD) || "$(CROSS_COMPILE_COMPAT)" != ""
 	select GENERIC_COMPAT_VDSO
 	default y
 	help
diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
index 4f38616abb638..abad38c576e1d 100644
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -10,18 +10,15 @@ include $(srctree)/lib/vdso/Makefile
 
 # Same as cc-*option, but using CC_COMPAT instead of CC
 ifeq ($(CONFIG_CC_IS_CLANG), y)
-CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
-
 CC_COMPAT ?= $(CC)
-CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS)
-
-ifneq ($(LLVM),)
-LD_COMPAT ?= $(LD)
+CC_COMPAT += --target=arm-linux-gnueabi
 else
-LD_COMPAT ?= $(CROSS_COMPILE_COMPAT)ld
+CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc
 endif
+
+ifeq ($(CONFIG_LD_IS_LLD), y)
+LD_COMPAT ?= $(LD)
 else
-CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc
 LD_COMPAT ?= $(CROSS_COMPILE_COMPAT)ld
 endif
 
@@ -47,10 +44,6 @@ VDSO_CPPFLAGS += $(LINUXINCLUDE)
 # Common C and assembly flags
 # From top-level Makefile
 VDSO_CAFLAGS := $(VDSO_CPPFLAGS)
-ifneq ($(shell $(CC_COMPAT) --version 2>&1 | head -n 1 | grep clang),)
-VDSO_CAFLAGS += --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
-endif
-
 VDSO_CAFLAGS += $(call cc32-option,-fno-PIE)
 ifdef CONFIG_DEBUG_INFO
 VDSO_CAFLAGS += -g
-- 
GitLab


From f69a47fcbb9cdc0715610aabeae3849b03cfe24c Mon Sep 17 00:00:00 2001
From: Greg Jesionowski <jesionowskigreg@gmail.com>
Date: Tue, 14 Dec 2021 15:10:27 -0700
Subject: [PATCH 2396/4878] net: usb: lan78xx: add Allied Telesis AT29M2-AF

commit ef8a0f6eab1ca5d1a75c242c5c7b9d386735fa0a upstream.

This adds the vendor and product IDs for the AT29M2-AF which is a
lan7801-based device.

Signed-off-by: Greg Jesionowski <jesionowskigreg@gmail.com>
Link: https://lore.kernel.org/r/20211214221027.305784-1-jesionowskigreg@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/lan78xx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index c666e990900b9..6f7b70522d926 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -64,6 +64,8 @@
 #define LAN7801_USB_PRODUCT_ID		(0x7801)
 #define LAN78XX_EEPROM_MAGIC		(0x78A5)
 #define LAN78XX_OTP_MAGIC		(0x78F3)
+#define AT29M2AF_USB_VENDOR_ID		(0x07C9)
+#define AT29M2AF_USB_PRODUCT_ID	(0x0012)
 
 #define	MII_READ			1
 #define	MII_WRITE			0
@@ -4142,6 +4144,10 @@ static const struct usb_device_id products[] = {
 	/* LAN7801 USB Gigabit Ethernet Device */
 	USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7801_USB_PRODUCT_ID),
 	},
+	{
+	/* ATM2-AF USB Gigabit Ethernet Device */
+	USB_DEVICE(AT29M2AF_USB_VENDOR_ID, AT29M2AF_USB_PRODUCT_ID),
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(usb, products);
-- 
GitLab


From 1d4b1c4e8bbd8260569b59698edab5b00f8f6677 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Wed, 8 Sep 2021 20:08:50 +0800
Subject: [PATCH 2397/4878] ext4: prevent partial update of the extent blocks

commit 0f2f87d51aebcf71a709b52f661d681594c7dffa upstream.

In the most error path of current extents updating operations are not
roll back partial updates properly when some bad things happens(.e.g in
ext4_ext_insert_extent()). So we may get an inconsistent extents tree
if journal has been aborted due to IO error, which may probability lead
to BUGON later when we accessing these extent entries in errors=continue
mode. This patch drop extent buffer's verify flag before updatng the
contents in ext4_ext_get_access(), and reset it after updating in
__ext4_ext_dirty(). After this patch we could force to check the extent
buffer if extents tree updating was break off, make sure the extents are
consistent.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210908120850.4012324-4-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index c2f237653f68e..0bccfef6fc405 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -136,14 +136,24 @@ int ext4_datasem_ensure_credits(handle_t *handle, struct inode *inode,
 static int ext4_ext_get_access(handle_t *handle, struct inode *inode,
 				struct ext4_ext_path *path)
 {
+	int err = 0;
+
 	if (path->p_bh) {
 		/* path points to block */
 		BUFFER_TRACE(path->p_bh, "get_write_access");
-		return ext4_journal_get_write_access(handle, path->p_bh);
+		err = ext4_journal_get_write_access(handle, path->p_bh);
+		/*
+		 * The extent buffer's verified bit will be set again in
+		 * __ext4_ext_dirty(). We could leave an inconsistent
+		 * buffer if the extents updating procudure break off du
+		 * to some error happens, force to check it again.
+		 */
+		if (!err)
+			clear_buffer_verified(path->p_bh);
 	}
 	/* path points to leaf/index in inode body */
 	/* we use in-core data, no need to protect them */
-	return 0;
+	return err;
 }
 
 /*
@@ -164,6 +174,9 @@ static int __ext4_ext_dirty(const char *where, unsigned int line,
 		/* path points to block */
 		err = __ext4_handle_dirty_metadata(where, line, handle,
 						   inode, path->p_bh);
+		/* Extents updating done, re-set verified flag */
+		if (!err)
+			set_buffer_verified(path->p_bh);
 	} else {
 		/* path points to leaf/index in inode body */
 		err = ext4_mark_inode_dirty(handle, inode);
-- 
GitLab


From 76366c024f56545355c815f31837dd1175c60da6 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Wed, 8 Sep 2021 20:08:48 +0800
Subject: [PATCH 2398/4878] ext4: check for out-of-order index extents in
 ext4_valid_extent_entries()

commit 8dd27fecede55e8a4e67eef2878040ecad0f0d33 upstream.

After commit 5946d089379a ("ext4: check for overlapping extents in
ext4_valid_extent_entries()"), we can check out the overlapping extent
entry in leaf extent blocks. But the out-of-order extent entry in index
extent blocks could also trigger bad things if the filesystem is
inconsistent. So this patch add a check to figure out the out-of-order
index extents and return error.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210908120850.4012324-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 0bccfef6fc405..60490074bc7e3 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -369,6 +369,9 @@ static int ext4_valid_extent_entries(struct inode *inode,
 				     ext4_fsblk_t *pblk, int depth)
 {
 	unsigned short entries;
+	ext4_lblk_t lblock = 0;
+	ext4_lblk_t prev = 0;
+
 	if (eh->eh_entries == 0)
 		return 1;
 
@@ -377,31 +380,35 @@ static int ext4_valid_extent_entries(struct inode *inode,
 	if (depth == 0) {
 		/* leaf entries */
 		struct ext4_extent *ext = EXT_FIRST_EXTENT(eh);
-		ext4_lblk_t lblock = 0;
-		ext4_lblk_t prev = 0;
-		int len = 0;
 		while (entries) {
 			if (!ext4_valid_extent(inode, ext))
 				return 0;
 
 			/* Check for overlapping extents */
 			lblock = le32_to_cpu(ext->ee_block);
-			len = ext4_ext_get_actual_len(ext);
 			if ((lblock <= prev) && prev) {
 				*pblk = ext4_ext_pblock(ext);
 				return 0;
 			}
+			prev = lblock + ext4_ext_get_actual_len(ext) - 1;
 			ext++;
 			entries--;
-			prev = lblock + len - 1;
 		}
 	} else {
 		struct ext4_extent_idx *ext_idx = EXT_FIRST_INDEX(eh);
 		while (entries) {
 			if (!ext4_valid_extent_idx(inode, ext_idx))
 				return 0;
+
+			/* Check for overlapping index extents */
+			lblock = le32_to_cpu(ext_idx->ei_block);
+			if ((lblock <= prev) && prev) {
+				*pblk = ext4_idx_pblock(ext_idx);
+				return 0;
+			}
 			ext_idx++;
 			entries--;
+			prev = lblock;
 		}
 	}
 	return 1;
-- 
GitLab


From 0875873b2a97ab201fbb44ae4cd939ed52847d18 Mon Sep 17 00:00:00 2001
From: Zhang Yi <yi.zhang@huawei.com>
Date: Wed, 8 Sep 2021 20:08:49 +0800
Subject: [PATCH 2399/4878] ext4: check for inconsistent extents between index
 and leaf block

commit 9c6e071913792d80894cd0be98cc3c4b770e26d3 upstream.

Now that we can check out overlapping extents in leaf block and
out-of-order index extents in index block. But the .ee_block in the
first extent of one leaf block should equal to the .ei_block in it's
parent index extent entry. This patch add a check to verify such
inconsistent between the index and leaf block.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210908120850.4012324-3-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 59 +++++++++++++++++++++++++++++------------------
 1 file changed, 36 insertions(+), 23 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 60490074bc7e3..b8c9df6ab67f5 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -366,7 +366,8 @@ static int ext4_valid_extent_idx(struct inode *inode,
 
 static int ext4_valid_extent_entries(struct inode *inode,
 				     struct ext4_extent_header *eh,
-				     ext4_fsblk_t *pblk, int depth)
+				     ext4_lblk_t lblk, ext4_fsblk_t *pblk,
+				     int depth)
 {
 	unsigned short entries;
 	ext4_lblk_t lblock = 0;
@@ -380,6 +381,14 @@ static int ext4_valid_extent_entries(struct inode *inode,
 	if (depth == 0) {
 		/* leaf entries */
 		struct ext4_extent *ext = EXT_FIRST_EXTENT(eh);
+
+		/*
+		 * The logical block in the first entry should equal to
+		 * the number in the index block.
+		 */
+		if (depth != ext_depth(inode) &&
+		    lblk != le32_to_cpu(ext->ee_block))
+			return 0;
 		while (entries) {
 			if (!ext4_valid_extent(inode, ext))
 				return 0;
@@ -396,6 +405,14 @@ static int ext4_valid_extent_entries(struct inode *inode,
 		}
 	} else {
 		struct ext4_extent_idx *ext_idx = EXT_FIRST_INDEX(eh);
+
+		/*
+		 * The logical block in the first entry should equal to
+		 * the number in the parent index block.
+		 */
+		if (depth != ext_depth(inode) &&
+		    lblk != le32_to_cpu(ext_idx->ei_block))
+			return 0;
 		while (entries) {
 			if (!ext4_valid_extent_idx(inode, ext_idx))
 				return 0;
@@ -416,7 +433,7 @@ static int ext4_valid_extent_entries(struct inode *inode,
 
 static int __ext4_ext_check(const char *function, unsigned int line,
 			    struct inode *inode, struct ext4_extent_header *eh,
-			    int depth, ext4_fsblk_t pblk)
+			    int depth, ext4_fsblk_t pblk, ext4_lblk_t lblk)
 {
 	const char *error_msg;
 	int max = 0, err = -EFSCORRUPTED;
@@ -442,7 +459,7 @@ static int __ext4_ext_check(const char *function, unsigned int line,
 		error_msg = "invalid eh_entries";
 		goto corrupted;
 	}
-	if (!ext4_valid_extent_entries(inode, eh, &pblk, depth)) {
+	if (!ext4_valid_extent_entries(inode, eh, lblk, &pblk, depth)) {
 		error_msg = "invalid extent entries";
 		goto corrupted;
 	}
@@ -472,7 +489,7 @@ corrupted:
 }
 
 #define ext4_ext_check(inode, eh, depth, pblk)			\
-	__ext4_ext_check(__func__, __LINE__, (inode), (eh), (depth), (pblk))
+	__ext4_ext_check(__func__, __LINE__, (inode), (eh), (depth), (pblk), 0)
 
 int ext4_ext_check_inode(struct inode *inode)
 {
@@ -505,16 +522,18 @@ static void ext4_cache_extents(struct inode *inode,
 
 static struct buffer_head *
 __read_extent_tree_block(const char *function, unsigned int line,
-			 struct inode *inode, ext4_fsblk_t pblk, int depth,
-			 int flags)
+			 struct inode *inode, struct ext4_extent_idx *idx,
+			 int depth, int flags)
 {
 	struct buffer_head		*bh;
 	int				err;
 	gfp_t				gfp_flags = __GFP_MOVABLE | GFP_NOFS;
+	ext4_fsblk_t			pblk;
 
 	if (flags & EXT4_EX_NOFAIL)
 		gfp_flags |= __GFP_NOFAIL;
 
+	pblk = ext4_idx_pblock(idx);
 	bh = sb_getblk_gfp(inode->i_sb, pblk, gfp_flags);
 	if (unlikely(!bh))
 		return ERR_PTR(-ENOMEM);
@@ -527,8 +546,8 @@ __read_extent_tree_block(const char *function, unsigned int line,
 	}
 	if (buffer_verified(bh) && !(flags & EXT4_EX_FORCE_CACHE))
 		return bh;
-	err = __ext4_ext_check(function, line, inode,
-			       ext_block_hdr(bh), depth, pblk);
+	err = __ext4_ext_check(function, line, inode, ext_block_hdr(bh),
+			       depth, pblk, le32_to_cpu(idx->ei_block));
 	if (err)
 		goto errout;
 	set_buffer_verified(bh);
@@ -546,8 +565,8 @@ errout:
 
 }
 
-#define read_extent_tree_block(inode, pblk, depth, flags)		\
-	__read_extent_tree_block(__func__, __LINE__, (inode), (pblk),   \
+#define read_extent_tree_block(inode, idx, depth, flags)		\
+	__read_extent_tree_block(__func__, __LINE__, (inode), (idx),	\
 				 (depth), (flags))
 
 /*
@@ -597,8 +616,7 @@ int ext4_ext_precache(struct inode *inode)
 			i--;
 			continue;
 		}
-		bh = read_extent_tree_block(inode,
-					    ext4_idx_pblock(path[i].p_idx++),
+		bh = read_extent_tree_block(inode, path[i].p_idx++,
 					    depth - i - 1,
 					    EXT4_EX_FORCE_CACHE);
 		if (IS_ERR(bh)) {
@@ -903,8 +921,7 @@ ext4_find_extent(struct inode *inode, ext4_lblk_t block,
 		path[ppos].p_depth = i;
 		path[ppos].p_ext = NULL;
 
-		bh = read_extent_tree_block(inode, path[ppos].p_block, --i,
-					    flags);
+		bh = read_extent_tree_block(inode, path[ppos].p_idx, --i, flags);
 		if (IS_ERR(bh)) {
 			ret = PTR_ERR(bh);
 			goto err;
@@ -1509,7 +1526,6 @@ static int ext4_ext_search_right(struct inode *inode,
 	struct ext4_extent_header *eh;
 	struct ext4_extent_idx *ix;
 	struct ext4_extent *ex;
-	ext4_fsblk_t block;
 	int depth;	/* Note, NOT eh_depth; depth from top of tree */
 	int ee_len;
 
@@ -1576,20 +1592,17 @@ got_index:
 	 * follow it and find the closest allocated
 	 * block to the right */
 	ix++;
-	block = ext4_idx_pblock(ix);
 	while (++depth < path->p_depth) {
 		/* subtract from p_depth to get proper eh_depth */
-		bh = read_extent_tree_block(inode, block,
-					    path->p_depth - depth, 0);
+		bh = read_extent_tree_block(inode, ix, path->p_depth - depth, 0);
 		if (IS_ERR(bh))
 			return PTR_ERR(bh);
 		eh = ext_block_hdr(bh);
 		ix = EXT_FIRST_INDEX(eh);
-		block = ext4_idx_pblock(ix);
 		put_bh(bh);
 	}
 
-	bh = read_extent_tree_block(inode, block, path->p_depth - depth, 0);
+	bh = read_extent_tree_block(inode, ix, path->p_depth - depth, 0);
 	if (IS_ERR(bh))
 		return PTR_ERR(bh);
 	eh = ext_block_hdr(bh);
@@ -2968,9 +2981,9 @@ again:
 			ext_debug(inode, "move to level %d (block %llu)\n",
 				  i + 1, ext4_idx_pblock(path[i].p_idx));
 			memset(path + i + 1, 0, sizeof(*path));
-			bh = read_extent_tree_block(inode,
-				ext4_idx_pblock(path[i].p_idx), depth - i - 1,
-				EXT4_EX_NOCACHE);
+			bh = read_extent_tree_block(inode, path[i].p_idx,
+						    depth - i - 1,
+						    EXT4_EX_NOCACHE);
 			if (IS_ERR(bh)) {
 				/* should we reset i_size? */
 				err = PTR_ERR(bh);
-- 
GitLab


From 3110bc5862d213035c685ed607795e6abdb34d78 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Mon, 20 Dec 2021 10:51:20 +0100
Subject: [PATCH 2400/4878] HID: holtek: fix mouse probing

commit 93a2207c254ca102ebbdae47b00f19bbfbfa7ecd upstream.

An overlook from the previous commit: we don't even parse or start the
device, meaning that the device is not presented to user space.

Fixes: 93020953d0fa ("HID: check for valid USB device for many HID drivers")
Cc: stable@vger.kernel.org
Link: https://bugs.archlinux.org/task/73048
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215341
Link: https://lore.kernel.org/r/e4efbf13-bd8d-0370-629b-6c80c0044b15@leemhuis.info/
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-holtek-mouse.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c
index b7172c48ef9f0..7c907939bfae1 100644
--- a/drivers/hid/hid-holtek-mouse.c
+++ b/drivers/hid/hid-holtek-mouse.c
@@ -65,8 +65,23 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 static int holtek_mouse_probe(struct hid_device *hdev,
 			      const struct hid_device_id *id)
 {
+	int ret;
+
 	if (!hid_is_usb(hdev))
 		return -EINVAL;
+
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "hid parse failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (ret) {
+		hid_err(hdev, "hw start failed: %d\n", ret);
+		return ret;
+	}
+
 	return 0;
 }
 
-- 
GitLab


From ef2dce43257df7488feb046de4706b9d657a4ad5 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 15 Dec 2021 16:36:05 +0800
Subject: [PATCH 2401/4878] HID: potential dereference of null pointer

commit 13251ce1dd9bb525da2becb9b26fdfb94ca58659 upstream.

The return value of devm_kzalloc() needs to be checked.
To avoid hdev->dev->driver_data to be null in case of the failure of
alloc.

Fixes: 14c9c014babe ("HID: add vivaldi HID driver")
Cc: stable@vger.kernel.org
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211215083605.117638-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-vivaldi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/hid/hid-vivaldi.c b/drivers/hid/hid-vivaldi.c
index cd7ada48b1d9f..72957a9f71170 100644
--- a/drivers/hid/hid-vivaldi.c
+++ b/drivers/hid/hid-vivaldi.c
@@ -57,6 +57,9 @@ static int vivaldi_probe(struct hid_device *hdev,
 	int ret;
 
 	drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
 	hid_set_drvdata(hdev, drvdata);
 
 	ret = hid_parse(hdev);
-- 
GitLab


From 93a957bbf46ceb224b959de61fe85cfc6f71b6c7 Mon Sep 17 00:00:00 2001
From: Robert Marko <robert.marko@sartura.hr>
Date: Wed, 17 Nov 2021 15:02:22 +0100
Subject: [PATCH 2402/4878] arm64: dts: allwinner: orangepi-zero-plus: fix PHY
 mode

[ Upstream commit 08d2061ff9c5319a07bf9ca6bbf11fdec68f704a ]

Orange Pi Zero Plus uses a Realtek RTL8211E RGMII Gigabit PHY, but its
currently set to plain RGMII mode meaning that it doesn't introduce
delays.

With this setup, TX packets are completely lost and changing the mode to
RGMII-ID so the PHY will add delays internally fixes the issue.

Fixes: a7affb13b271 ("arm64: allwinner: H5: Add Xunlong Orange Pi Zero Plus")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Ron Goossens <rgoossens@gmail.com>
Tested-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20211117140222.43692-1-robert.marko@sartura.hr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
index ef5ca64442203..de448ca51e216 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
@@ -69,7 +69,7 @@
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_gmac_3v3>;
 	phy-handle = <&ext_rgmii_phy>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };
 
-- 
GitLab


From 580ecf86e7720aa5e123009b390e47a7ebd6bde7 Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Mon, 6 Dec 2021 18:19:31 +0800
Subject: [PATCH 2403/4878] spi: change clk_disable_unprepare to clk_unprepare

[ Upstream commit db6689b643d8653092f5853751ea2cdbc299f8d3 ]

The corresponding API for clk_prepare is clk_unprepare, other than
clk_disable_unprepare.

Fix this by changing clk_disable_unprepare to clk_unprepare.

Fixes: 5762ab71eb24 ("spi: Add support for Armada 3700 SPI Controller")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20211206101931.2816597-1-mudongliangabcd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-armada-3700.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c
index 46feafe4e201c..d8cc4b270644a 100644
--- a/drivers/spi/spi-armada-3700.c
+++ b/drivers/spi/spi-armada-3700.c
@@ -901,7 +901,7 @@ static int a3700_spi_probe(struct platform_device *pdev)
 	return 0;
 
 error_clk:
-	clk_disable_unprepare(spi->clk);
+	clk_unprepare(spi->clk);
 error:
 	spi_master_put(master);
 out:
-- 
GitLab


From cd9c90682b2f23432e457fb14e5260e9c07a4223 Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Mon, 6 Dec 2021 22:08:03 +0100
Subject: [PATCH 2404/4878] ASoC: meson: aiu: fifo: Add missing
 dma_coerce_mask_and_coherent()

[ Upstream commit 1bcd326631dc4faa3322d60b4fc45e8b3747993e ]

The FIFO registers which take an DMA-able address are only 32-bit wide
on AIU. Add dma_coerce_mask_and_coherent() to make the DMA core aware of
this limitation.

Fixes: 6ae9ca9ce986bf ("ASoC: meson: aiu: add i2s and spdif support")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20211206210804.2512999-2-martin.blumenstingl@googlemail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/meson/aiu-fifo.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/meson/aiu-fifo.c b/sound/soc/meson/aiu-fifo.c
index aa88aae8e517d..3efc3cad0b4ec 100644
--- a/sound/soc/meson/aiu-fifo.c
+++ b/sound/soc/meson/aiu-fifo.c
@@ -5,6 +5,7 @@
 
 #include <linux/bitfield.h>
 #include <linux/clk.h>
+#include <linux/dma-mapping.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/soc-dai.h>
@@ -192,6 +193,11 @@ int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd,
 	struct snd_card *card = rtd->card->snd_card;
 	struct aiu_fifo *fifo = dai->playback_dma_data;
 	size_t size = fifo->pcm->buffer_bytes_max;
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	snd_pcm_lib_preallocate_pages(substream,
 				      SNDRV_DMA_TYPE_DEV,
-- 
GitLab


From 7cf6466e00a77b0a914b7b2c28a1fc7947d55e59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Wed, 8 Dec 2021 18:52:38 +0100
Subject: [PATCH 2405/4878] IB/qib: Fix memory leak in
 qib_user_sdma_queue_pkts()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit bee90911e0138c76ee67458ac0d58b38a3190f65 ]

The wrong goto label was used for the error case and missed cleanup of the
pkt allocation.

Fixes: d39bf40e55e6 ("IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields")
Link: https://lore.kernel.org/r/20211208175238.29983-1-jose.exposito89@gmail.com
Addresses-Coverity-ID: 1493352 ("Resource leak")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/qib/qib_user_sdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index ac11943a5ddb0..bf2f30d67949d 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -941,7 +941,7 @@ static int qib_user_sdma_queue_pkts(const struct qib_devdata *dd,
 					       &addrlimit) ||
 			    addrlimit > type_max(typeof(pkt->addrlimit))) {
 				ret = -EINVAL;
-				goto free_pbc;
+				goto free_pkt;
 			}
 			pkt->addrlimit = addrlimit;
 
-- 
GitLab


From 579cefef7c425b99e6693f0f234f5be265aaf6e1 Mon Sep 17 00:00:00 2001
From: Jiacheng Shi <billsjc@sjtu.edu.cn>
Date: Fri, 10 Dec 2021 01:42:34 -0800
Subject: [PATCH 2406/4878] RDMA/hns: Replace kfree() with kvfree()

[ Upstream commit 12d3bbdd6bd2780b71cc466f3fbc6eb7d43bbc2a ]

Variables allocated by kvmalloc_array() should not be freed by kfree.
Because they may be allocated by vmalloc.  So we replace kfree() with
kvfree() here.

Fixes: 6fd610c5733d ("RDMA/hns: Support 0 hop addressing for SRQ buffer")
Link: https://lore.kernel.org/r/20211210094234.5829-1-billsjc@sjtu.edu.cn
Signed-off-by: Jiacheng Shi <billsjc@sjtu.edu.cn>
Acked-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_srq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c
index f27523e1a12d7..08df97e0a6654 100644
--- a/drivers/infiniband/hw/hns/hns_roce_srq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_srq.c
@@ -277,7 +277,7 @@ static int alloc_srq_wrid(struct hns_roce_dev *hr_dev, struct hns_roce_srq *srq)
 
 static void free_srq_wrid(struct hns_roce_srq *srq)
 {
-	kfree(srq->wrid);
+	kvfree(srq->wrid);
 	srq->wrid = NULL;
 }
 
-- 
GitLab


From d79f5e0d458bc07fe7734abde2a734f6261d7307 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ignacy=20Gaw=C4=99dzki?=
 <ignacy.gawedzki@green-communications.fr>
Date: Fri, 10 Dec 2021 16:31:27 +0100
Subject: [PATCH 2407/4878] netfilter: fix regression in looped
 (broad|multi)cast's MAC handling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit ebb966d3bdfed581ecccbb4a7432341baf7619b4 ]

In commit 5648b5e1169f ("netfilter: nfnetlink_queue: fix OOB when mac
header was cleared"), the test for non-empty MAC header introduced in
commit 2c38de4c1f8da7 ("netfilter: fix looped (broad|multi)cast's MAC
handling") has been replaced with a test for a set MAC header.

This breaks the case when the MAC header has been reset (using
skb_reset_mac_header), as is the case with looped-back multicast
packets.  As a result, the packets ending up in NFQUEUE get a bogus
hwaddr interpreted from the first bytes of the IP header.

This patch adds a test for a non-empty MAC header in addition to the
test for a set MAC header.  The same two tests are also implemented in
nfnetlink_log.c, where the initial code of commit 2c38de4c1f8da7
("netfilter: fix looped (broad|multi)cast's MAC handling") has not been
touched, but where supposedly the same situation may happen.

Fixes: 5648b5e1169f ("netfilter: nfnetlink_queue: fix OOB when mac header was cleared")
Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nfnetlink_log.c   | 3 ++-
 net/netfilter/nfnetlink_queue.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index b35e8d9a5b37e..33c13edbca4bb 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -557,7 +557,8 @@ __build_packet_message(struct nfnl_log_net *log,
 		goto nla_put_failure;
 
 	if (indev && skb->dev &&
-	    skb->mac_header != skb->network_header) {
+	    skb_mac_header_was_set(skb) &&
+	    skb_mac_header_len(skb) != 0) {
 		struct nfulnl_msg_packet_hw phw;
 		int len;
 
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 98994fe677fe9..b0358f30947ea 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -562,7 +562,8 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
 		goto nla_put_failure;
 
 	if (indev && entskb->dev &&
-	    skb_mac_header_was_set(entskb)) {
+	    skb_mac_header_was_set(entskb) &&
+	    skb_mac_header_len(entskb) != 0) {
 		struct nfqnl_msg_packet_hw phw;
 		int len;
 
-- 
GitLab


From 861b4413e41da02231300eef5029f71ab5c700ac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Haa=C3=9F?= <vvvrrooomm@gmail.com>
Date: Sun, 12 Dec 2021 09:30:30 -0300
Subject: [PATCH 2408/4878] ARM: dts: imx6qdl-wandboard: Fix Ethernet support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 39e660687ac0c57499134765abbecf71cfd11eae ]

Currently, the imx6q-wandboard Ethernet does not transmit any
data.

This issue has been exposed by commit f5d9aa79dfdf ("ARM: imx6q:
remove clk-out fixup for the Atheros AR8031 and AR8035 PHYs").

Fix it by describing the qca,clk-out-frequency property as suggested
by the commit above.

Fixes: 77591e42458d ("ARM: dts: imx6qdl-wandboard: add ethernet PHY description")
Signed-off-by: Martin Haaß <vvvrrooomm@gmail.com>
Tested-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index c070893c509ee..5bad982bc5a05 100644
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -289,6 +289,7 @@
 
 		ethphy: ethernet-phy@1 {
 			reg = <1>;
+			qca,clk-out-frequency = <125000000>;
 		};
 	};
 };
-- 
GitLab


From 78e49d77e517c205e7c2c2f7a970468dd2f867b1 Mon Sep 17 00:00:00 2001
From: Yevhen Orlov <yevhen.orlov@plvision.eu>
Date: Thu, 16 Dec 2021 19:07:36 +0200
Subject: [PATCH 2409/4878] net: marvell: prestera: fix incorrect return of
 port_find

[ Upstream commit 8b681bd7c301c423fbe97a6b23388a2180ff04ca ]

In case, when some ports is in list and we don't find requested - we
return last iterator state and not return NULL as expected.

Fixes: 501ef3066c89 ("net: marvell: prestera: Add driver for Prestera family ASIC devices")
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Link: https://lore.kernel.org/r/20211216170736.8851-1-yevhen.orlov@plvision.eu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/marvell/prestera/prestera_main.c    | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index feb69fcd908e3..f406f5b517b02 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -50,12 +50,14 @@ int prestera_port_pvid_set(struct prestera_port *port, u16 vid)
 struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
 						 u32 dev_id, u32 hw_id)
 {
-	struct prestera_port *port = NULL;
+	struct prestera_port *port = NULL, *tmp;
 
 	read_lock(&sw->port_list_lock);
-	list_for_each_entry(port, &sw->port_list, list) {
-		if (port->dev_id == dev_id && port->hw_id == hw_id)
+	list_for_each_entry(tmp, &sw->port_list, list) {
+		if (tmp->dev_id == dev_id && tmp->hw_id == hw_id) {
+			port = tmp;
 			break;
+		}
 	}
 	read_unlock(&sw->port_list_lock);
 
@@ -64,12 +66,14 @@ struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
 
 struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id)
 {
-	struct prestera_port *port = NULL;
+	struct prestera_port *port = NULL, *tmp;
 
 	read_lock(&sw->port_list_lock);
-	list_for_each_entry(port, &sw->port_list, list) {
-		if (port->id == id)
+	list_for_each_entry(tmp, &sw->port_list, list) {
+		if (tmp->id == id) {
+			port = tmp;
 			break;
+		}
 	}
 	read_unlock(&sw->port_list_lock);
 
-- 
GitLab


From 56b0bbba782b2dfec7d4c4afcf0c854e702c5cd8 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Fri, 17 Dec 2021 17:39:11 +0800
Subject: [PATCH 2410/4878] qlcnic: potential dereference null pointer of
 rx_queue->page_ring

[ Upstream commit 60ec7fcfe76892a1479afab51ff17a4281923156 ]

The return value of kcalloc() needs to be checked.
To avoid dereference of null pointer in case of the failure of alloc.
Therefore, it might be better to change the return type of
qlcnic_sriov_alloc_vlans() and return -ENOMEM when alloc fails and
return 0 the others.
Also, qlcnic_sriov_set_guest_vlan_mode() and __qlcnic_pci_sriov_enable()
should deal with the return value of qlcnic_sriov_alloc_vlans().

Fixes: 154d0c810c53 ("qlcnic: VLAN enhancement for 84XX adapters")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h    |  2 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 12 +++++++++---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c |  4 +++-
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
index 7160b42f51ddd..d0111cb3b40e1 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
@@ -201,7 +201,7 @@ int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *,
 				   struct qlcnic_info *, u16);
 int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *, u16, u8);
 void qlcnic_sriov_free_vlans(struct qlcnic_adapter *);
-void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *);
+int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *);
 bool qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info *);
 void qlcnic_sriov_del_vlan_id(struct qlcnic_sriov *,
 			      struct qlcnic_vf_info *, u16);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 30e52f9697593..8367891bfb139 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -432,7 +432,7 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter,
 					    struct qlcnic_cmd_args *cmd)
 {
 	struct qlcnic_sriov *sriov = adapter->ahw->sriov;
-	int i, num_vlans;
+	int i, num_vlans, ret;
 	u16 *vlans;
 
 	if (sriov->allowed_vlans)
@@ -443,7 +443,9 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter,
 	dev_info(&adapter->pdev->dev, "Number of allowed Guest VLANs = %d\n",
 		 sriov->num_allowed_vlans);
 
-	qlcnic_sriov_alloc_vlans(adapter);
+	ret = qlcnic_sriov_alloc_vlans(adapter);
+	if (ret)
+		return ret;
 
 	if (!sriov->any_vlan)
 		return 0;
@@ -2159,7 +2161,7 @@ static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter)
 	return err;
 }
 
-void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter)
+int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_sriov *sriov = adapter->ahw->sriov;
 	struct qlcnic_vf_info *vf;
@@ -2169,7 +2171,11 @@ void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter)
 		vf = &sriov->vf_info[i];
 		vf->sriov_vlans = kcalloc(sriov->num_allowed_vlans,
 					  sizeof(*vf->sriov_vlans), GFP_KERNEL);
+		if (!vf->sriov_vlans)
+			return -ENOMEM;
 	}
+
+	return 0;
 }
 
 void qlcnic_sriov_free_vlans(struct qlcnic_adapter *adapter)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 447720b93e5ab..e90fa97c0ae6c 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -597,7 +597,9 @@ static int __qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter,
 	if (err)
 		goto del_flr_queue;
 
-	qlcnic_sriov_alloc_vlans(adapter);
+	err = qlcnic_sriov_alloc_vlans(adapter);
+	if (err)
+		goto del_flr_queue;
 
 	return err;
 
-- 
GitLab


From ed05e4dcfba63bcca36ec1d19d099a1ec6b000ec Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Mon, 20 Dec 2021 09:49:01 -0500
Subject: [PATCH 2411/4878] net: accept UFOv6 packages in virtio_net_hdr_to_skb

[ Upstream commit 7e5cced9ca84df52d874aca6b632f930b3dc5bc6 ]

Skb with skb->protocol 0 at the time of virtio_net_hdr_to_skb may have
a protocol inferred from virtio_net_hdr with virtio_net_hdr_set_proto.

Unlike TCP, UDP does not have separate types for IPv4 and IPv6. Type
VIRTIO_NET_HDR_GSO_UDP is guessed to be IPv4/UDP. As of the below
commit, UFOv6 packets are dropped due to not matching the protocol as
obtained from dev_parse_header_protocol.

Invert the test to take that L2 protocol field as starting point and
pass both UFOv4 and UFOv6 for VIRTIO_NET_HDR_GSO_UDP.

Fixes: 924a9bc362a5 ("net: check if protocol extracted by virtio_net_hdr_set_proto is correct")
Link: https://lore.kernel.org/netdev/CABcq3pG9GRCYqFDBAJ48H1vpnnX=41u+MhQnayF1ztLH4WX0Fw@mail.gmail.com/
Reported-by: Andrew Melnichenko <andrew@daynix.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211220144901.2784030-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/virtio_net.h | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 04e87f4b9417c..22dd48c825600 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -7,6 +7,21 @@
 #include <uapi/linux/udp.h>
 #include <uapi/linux/virtio_net.h>
 
+static inline bool virtio_net_hdr_match_proto(__be16 protocol, __u8 gso_type)
+{
+	switch (gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
+	case VIRTIO_NET_HDR_GSO_TCPV4:
+		return protocol == cpu_to_be16(ETH_P_IP);
+	case VIRTIO_NET_HDR_GSO_TCPV6:
+		return protocol == cpu_to_be16(ETH_P_IPV6);
+	case VIRTIO_NET_HDR_GSO_UDP:
+		return protocol == cpu_to_be16(ETH_P_IP) ||
+		       protocol == cpu_to_be16(ETH_P_IPV6);
+	default:
+		return false;
+	}
+}
+
 static inline int virtio_net_hdr_set_proto(struct sk_buff *skb,
 					   const struct virtio_net_hdr *hdr)
 {
@@ -88,9 +103,12 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
 			if (!skb->protocol) {
 				__be16 protocol = dev_parse_header_protocol(skb);
 
-				virtio_net_hdr_set_proto(skb, hdr);
-				if (protocol && protocol != skb->protocol)
+				if (!protocol)
+					virtio_net_hdr_set_proto(skb, hdr);
+				else if (!virtio_net_hdr_match_proto(protocol, hdr->gso_type))
 					return -EINVAL;
+				else
+					skb->protocol = protocol;
 			}
 retry:
 			if (!skb_flow_dissect_flow_keys_basic(NULL, skb, &keys,
-- 
GitLab


From e00eace2325c4d4715d1001b0e467123d36e6c9a Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Mon, 20 Dec 2021 09:50:27 -0500
Subject: [PATCH 2412/4878] net: skip virtio_net_hdr_set_proto if protocol
 already set

[ Upstream commit 1ed1d592113959f00cc552c3b9f47ca2d157768f ]

virtio_net_hdr_set_proto infers skb->protocol from the virtio_net_hdr
gso_type, to avoid packets getting dropped for lack of a proto type.

Its protocol choice is a guess, especially in the case of UFO, where
the single VIRTIO_NET_HDR_GSO_UDP label covers both UFOv4 and UFOv6.

Skip this best effort if the field is already initialized. Whether
explicitly from userspace, or implicitly based on an earlier call to
dev_parse_header_protocol (which is more robust, but was introduced
after this patch).

Fixes: 9d2f67e43b73 ("net/packet: fix packet drop as of virtio gso")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211220145027.2784293-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/virtio_net.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 22dd48c825600..a960de68ac69e 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -25,6 +25,9 @@ static inline bool virtio_net_hdr_match_proto(__be16 protocol, __u8 gso_type)
 static inline int virtio_net_hdr_set_proto(struct sk_buff *skb,
 					   const struct virtio_net_hdr *hdr)
 {
+	if (skb->protocol)
+		return 0;
+
 	switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
 	case VIRTIO_NET_HDR_GSO_TCPV4:
 	case VIRTIO_NET_HDR_GSO_UDP:
-- 
GitLab


From 61e6b82e7b6c993c02084bb432c4bf6bd2f6cde9 Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon, 20 Dec 2021 12:18:44 -0800
Subject: [PATCH 2413/4878] igb: fix deadlock caused by taking RTNL in RPM
 resume path

[ Upstream commit ac8c58f5b535d6272324e2b8b4a0454781c9147e ]

Recent net core changes caused an issue with few Intel drivers
(reportedly igb), where taking RTNL in RPM resume path results in a
deadlock. See [0] for a bug report. I don't think the core changes
are wrong, but taking RTNL in RPM resume path isn't needed.
The Intel drivers are the only ones doing this. See [1] for a
discussion on the issue. Following patch changes the RPM resume path
to not take RTNL.

[0] https://bugzilla.kernel.org/show_bug.cgi?id=215129
[1] https://lore.kernel.org/netdev/20211125074949.5f897431@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/t/

Fixes: bd869245a3dc ("net: core: try to runtime-resume detached device in __dev_open")
Fixes: f32a21376573 ("ethtool: runtime-resume netdev parent before ethtool ioctl ops")
Tested-by: Martin Stolpe <martin.stolpe@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20211220201844.2714498-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 1662c0985eca4..f854d41c6c94d 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -9260,7 +9260,7 @@ static int __maybe_unused igb_suspend(struct device *dev)
 	return __igb_shutdown(to_pci_dev(dev), NULL, 0);
 }
 
-static int __maybe_unused igb_resume(struct device *dev)
+static int __maybe_unused __igb_resume(struct device *dev, bool rpm)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct net_device *netdev = pci_get_drvdata(pdev);
@@ -9303,17 +9303,24 @@ static int __maybe_unused igb_resume(struct device *dev)
 
 	wr32(E1000_WUS, ~0);
 
-	rtnl_lock();
+	if (!rpm)
+		rtnl_lock();
 	if (!err && netif_running(netdev))
 		err = __igb_open(netdev, true);
 
 	if (!err)
 		netif_device_attach(netdev);
-	rtnl_unlock();
+	if (!rpm)
+		rtnl_unlock();
 
 	return err;
 }
 
+static int __maybe_unused igb_resume(struct device *dev)
+{
+	return __igb_resume(dev, false);
+}
+
 static int __maybe_unused igb_runtime_idle(struct device *dev)
 {
 	struct net_device *netdev = dev_get_drvdata(dev);
@@ -9332,7 +9339,7 @@ static int __maybe_unused igb_runtime_suspend(struct device *dev)
 
 static int __maybe_unused igb_runtime_resume(struct device *dev)
 {
-	return igb_resume(dev);
+	return __igb_resume(dev, true);
 }
 
 static void igb_shutdown(struct pci_dev *pdev)
@@ -9448,7 +9455,7 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev,
  *  @pdev: Pointer to PCI device
  *
  *  Restart the card from scratch, as if from a cold-boot. Implementation
- *  resembles the first-half of the igb_resume routine.
+ *  resembles the first-half of the __igb_resume routine.
  **/
 static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
 {
@@ -9488,7 +9495,7 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
  *
  *  This callback is called when the error recovery driver tells us that
  *  its OK to resume normal operation. Implementation resembles the
- *  second-half of the igb_resume routine.
+ *  second-half of the __igb_resume routine.
  */
 static void igb_io_resume(struct pci_dev *pdev)
 {
-- 
GitLab


From 6809da5185141e61401da5b01896b79a4deed1ad Mon Sep 17 00:00:00 2001
From: Wu Bo <wubo40@huawei.com>
Date: Tue, 21 Dec 2021 15:00:34 +0800
Subject: [PATCH 2414/4878] ipmi: Fix UAF when uninstall ipmi_si and
 ipmi_msghandler module

[ Upstream commit ffb76a86f8096a8206be03b14adda6092e18e275 ]

Hi,

When testing install and uninstall of ipmi_si.ko and ipmi_msghandler.ko,
the system crashed.

The log as follows:
[  141.087026] BUG: unable to handle kernel paging request at ffffffffc09b3a5a
[  141.087241] PGD 8fe4c0d067 P4D 8fe4c0d067 PUD 8fe4c0f067 PMD 103ad89067 PTE 0
[  141.087464] Oops: 0010 [#1] SMP NOPTI
[  141.087580] CPU: 67 PID: 668 Comm: kworker/67:1 Kdump: loaded Not tainted 4.18.0.x86_64 #47
[  141.088009] Workqueue: events 0xffffffffc09b3a40
[  141.088009] RIP: 0010:0xffffffffc09b3a5a
[  141.088009] Code: Bad RIP value.
[  141.088009] RSP: 0018:ffffb9094e2c3e88 EFLAGS: 00010246
[  141.088009] RAX: 0000000000000000 RBX: ffff9abfdb1f04a0 RCX: 0000000000000000
[  141.088009] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246
[  141.088009] RBP: 0000000000000000 R08: ffff9abfffee3cb8 R09: 00000000000002e1
[  141.088009] R10: ffffb9094cb73d90 R11: 00000000000f4240 R12: ffff9abfffee8700
[  141.088009] R13: 0000000000000000 R14: ffff9abfdb1f04a0 R15: ffff9abfdb1f04a8
[  141.088009] FS:  0000000000000000(0000) GS:ffff9abfffec0000(0000) knlGS:0000000000000000
[  141.088009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  141.088009] CR2: ffffffffc09b3a30 CR3: 0000008fe4c0a001 CR4: 00000000007606e0
[  141.088009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  141.088009] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  141.088009] PKRU: 55555554
[  141.088009] Call Trace:
[  141.088009]  ? process_one_work+0x195/0x390
[  141.088009]  ? worker_thread+0x30/0x390
[  141.088009]  ? process_one_work+0x390/0x390
[  141.088009]  ? kthread+0x10d/0x130
[  141.088009]  ? kthread_flush_work_fn+0x10/0x10
[  141.088009]  ? ret_from_fork+0x35/0x40] BUG: unable to handle kernel paging request at ffffffffc0b28a5a
[  200.223240] PGD 97fe00d067 P4D 97fe00d067 PUD 97fe00f067 PMD a580cbf067 PTE 0
[  200.223464] Oops: 0010 [#1] SMP NOPTI
[  200.223579] CPU: 63 PID: 664 Comm: kworker/63:1 Kdump: loaded Not tainted 4.18.0.x86_64 #46
[  200.224008] Workqueue: events 0xffffffffc0b28a40
[  200.224008] RIP: 0010:0xffffffffc0b28a5a
[  200.224008] Code: Bad RIP value.
[  200.224008] RSP: 0018:ffffbf3c8e2a3e88 EFLAGS: 00010246
[  200.224008] RAX: 0000000000000000 RBX: ffffa0799ad6bca0 RCX: 0000000000000000
[  200.224008] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000246
[  200.224008] RBP: 0000000000000000 R08: ffff9fe43fde3cb8 R09: 00000000000000d5
[  200.224008] R10: ffffbf3c8cb53d90 R11: 00000000000f4240 R12: ffff9fe43fde8700
[  200.224008] R13: 0000000000000000 R14: ffffa0799ad6bca0 R15: ffffa0799ad6bca8
[  200.224008] FS:  0000000000000000(0000) GS:ffff9fe43fdc0000(0000) knlGS:0000000000000000
[  200.224008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  200.224008] CR2: ffffffffc0b28a30 CR3: 00000097fe00a002 CR4: 00000000007606e0
[  200.224008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  200.224008] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  200.224008] PKRU: 55555554
[  200.224008] Call Trace:
[  200.224008]  ? process_one_work+0x195/0x390
[  200.224008]  ? worker_thread+0x30/0x390
[  200.224008]  ? process_one_work+0x390/0x390
[  200.224008]  ? kthread+0x10d/0x130
[  200.224008]  ? kthread_flush_work_fn+0x10/0x10
[  200.224008]  ? ret_from_fork+0x35/0x40
[  200.224008] kernel fault(0x1) notification starting on CPU 63
[  200.224008] kernel fault(0x1) notification finished on CPU 63
[  200.224008] CR2: ffffffffc0b28a5a
[  200.224008] ---[ end trace c82a412d93f57412 ]---

The reason is as follows:
T1: rmmod ipmi_si.
    ->ipmi_unregister_smi()
        -> ipmi_bmc_unregister()
            -> __ipmi_bmc_unregister()
                -> kref_put(&bmc->usecount, cleanup_bmc_device);
                    -> schedule_work(&bmc->remove_work);

T2: rmmod ipmi_msghandler.
    ipmi_msghander module uninstalled, and the module space
    will be freed.

T3: bmc->remove_work doing cleanup the bmc resource.
    -> cleanup_bmc_work()
        -> platform_device_unregister(&bmc->pdev);
            -> platform_device_del(pdev);
                -> device_del(&pdev->dev);
                    -> kobject_uevent(&dev->kobj, KOBJ_REMOVE);
                        -> kobject_uevent_env()
                            -> dev_uevent()
                                -> if (dev->type && dev->type->name)

   'dev->type'(bmc_device_type) pointer space has freed when uninstall
    ipmi_msghander module, 'dev->type->name' cause the system crash.

drivers/char/ipmi/ipmi_msghandler.c:
2820 static const struct device_type bmc_device_type = {
2821         .groups         = bmc_dev_attr_groups,
2822 };

Steps to reproduce:
Add a time delay in cleanup_bmc_work() function,
and uninstall ipmi_si and ipmi_msghandler module.

2910 static void cleanup_bmc_work(struct work_struct *work)
2911 {
2912         struct bmc_device *bmc = container_of(work, struct bmc_device,
2913                                               remove_work);
2914         int id = bmc->pdev.id; /* Unregister overwrites id */
2915
2916         msleep(3000);   <---
2917         platform_device_unregister(&bmc->pdev);
2918         ida_simple_remove(&ipmi_bmc_ida, id);
2919 }

Use 'remove_work_wq' instead of 'system_wq' to solve this issues.

Fixes: b2cfd8ab4add ("ipmi: Rework device id and guid handling to catch changing BMCs")
Signed-off-by: Wu Bo <wubo40@huawei.com>
Message-Id: <1640070034-56671-1-git-send-email-wubo40@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 38b545bef05a3..fc6445ed7c377 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -2945,7 +2945,7 @@ cleanup_bmc_device(struct kref *ref)
 	 * with removing the device attributes while reading a device
 	 * attribute.
 	 */
-	schedule_work(&bmc->remove_work);
+	queue_work(remove_work_wq, &bmc->remove_work);
 }
 
 /*
-- 
GitLab


From c6d2754006c1b75d981dd1b3e4432eaafde81373 Mon Sep 17 00:00:00 2001
From: Fernando Fernandez Mancera <ffmancera@riseup.net>
Date: Tue, 21 Dec 2021 12:13:45 +0100
Subject: [PATCH 2415/4878] bonding: fix ad_actor_system option setting to
 default

[ Upstream commit 1c15b05baea71a5ff98235783e3e4ad227760876 ]

When 802.3ad bond mode is configured the ad_actor_system option is set to
"00:00:00:00:00:00". But when trying to set the all-zeroes MAC as actors'
system address it was failing with EINVAL.

An all-zeroes ethernet address is valid, only multicast addresses are not
valid values.

Fixes: 171a42c38c6e ("bonding: add netlink support for sys prio, actor sys mac, and port key")
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20211221111345.2462-1-ffmancera@riseup.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/networking/bonding.rst | 11 ++++++-----
 drivers/net/bonding/bond_options.c   |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/Documentation/networking/bonding.rst b/Documentation/networking/bonding.rst
index adc314639085b..413dca513e1db 100644
--- a/Documentation/networking/bonding.rst
+++ b/Documentation/networking/bonding.rst
@@ -196,11 +196,12 @@ ad_actor_sys_prio
 ad_actor_system
 
 	In an AD system, this specifies the mac-address for the actor in
-	protocol packet exchanges (LACPDUs). The value cannot be NULL or
-	multicast. It is preferred to have the local-admin bit set for this
-	mac but driver does not enforce it. If the value is not given then
-	system defaults to using the masters' mac address as actors' system
-	address.
+	protocol packet exchanges (LACPDUs). The value cannot be a multicast
+	address. If the all-zeroes MAC is specified, bonding will internally
+	use the MAC of the bond itself. It is preferred to have the
+	local-admin bit set for this mac but driver does not enforce it. If
+	the value is not given then system defaults to using the masters'
+	mac address as actors' system address.
 
 	This parameter has effect only in 802.3ad mode and is available through
 	SysFs interface.
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index a4e4e15f574df..fe55c81608daa 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -1466,7 +1466,7 @@ static int bond_option_ad_actor_system_set(struct bonding *bond,
 		mac = (u8 *)&newval->value;
 	}
 
-	if (!is_valid_ether_addr(mac))
+	if (is_multicast_ether_addr(mac))
 		goto err;
 
 	netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac);
-- 
GitLab


From ca2a15053b07a34cbb4736f81a9ed2289a463bd5 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 22 Dec 2021 15:12:07 +0800
Subject: [PATCH 2416/4878] fjes: Check for error irq

[ Upstream commit db6d6afe382de5a65d6ccf51253ab48b8e8336c3 ]

I find that platform_get_irq() will not always succeed.
It will return error irq in case of the failure.
Therefore, it might be better to check it if order to avoid the use of
error irq.

Fixes: 658d439b2292 ("fjes: Introduce FUJITSU Extended Socket Network Device driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/fjes/fjes_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index e449d94661225..2a569eea4ee8f 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -1269,6 +1269,11 @@ static int fjes_probe(struct platform_device *plat_dev)
 	hw->hw_res.start = res->start;
 	hw->hw_res.size = resource_size(res);
 	hw->hw_res.irq = platform_get_irq(plat_dev, 0);
+	if (hw->hw_res.irq < 0) {
+		err = hw->hw_res.irq;
+		goto err_free_control_wq;
+	}
+
 	err = fjes_hw_init(&adapter->hw);
 	if (err)
 		goto err_free_control_wq;
-- 
GitLab


From 9db0f8d395fd3af0952a6e4d66fbd11a83e34e8a Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 22 Dec 2021 15:41:12 +0800
Subject: [PATCH 2417/4878] drivers: net: smc911x: Check for error irq

[ Upstream commit cb93b3e11d405f20a405a07482d01147ef4934a3 ]

Because platform_get_irq() could fail and return error irq.
Therefore, it might be better to check it if order to avoid the use of
error irq.

Fixes: ae150435b59e ("smsc: Move the SMC (SMSC) drivers")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/smsc/smc911x.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 01069dfaf75c9..288b420f88d42 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -2069,6 +2069,11 @@ static int smc911x_drv_probe(struct platform_device *pdev)
 
 	ndev->dma = (unsigned char)-1;
 	ndev->irq = platform_get_irq(pdev, 0);
+	if (ndev->irq < 0) {
+		ret = ndev->irq;
+		goto release_both;
+	}
+
 	lp = netdev_priv(ndev);
 	lp->netdev = ndev;
 #ifdef SMC_DYNAMIC_BUS_CONFIG
-- 
GitLab


From 75c962f02a4ff639caaf1e5f075eb93b4e284972 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 22 Dec 2021 15:59:44 +0800
Subject: [PATCH 2418/4878] net: ks8851: Check for error irq

[ Upstream commit 99d7fbb5cedf598f67e8be106d6c7b8d91366aef ]

Because platform_get_irq() could fail and return error irq.
Therefore, it might be better to check it if order to avoid the use of
error irq.

Fixes: 797047f875b5 ("net: ks8851: Implement Parallel bus operations")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/micrel/ks8851_par.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/micrel/ks8851_par.c b/drivers/net/ethernet/micrel/ks8851_par.c
index 3bab0cb2b1a56..c7c99cc54ca11 100644
--- a/drivers/net/ethernet/micrel/ks8851_par.c
+++ b/drivers/net/ethernet/micrel/ks8851_par.c
@@ -323,6 +323,8 @@ static int ks8851_probe_par(struct platform_device *pdev)
 		return ret;
 
 	netdev->irq = platform_get_irq(pdev, 0);
+	if (netdev->irq < 0)
+		return netdev->irq;
 
 	return ks8851_probe_common(netdev, dev, msg_enable);
 }
-- 
GitLab


From d70b4001ef741e044c7b173b678828c2740bc9cd Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Mon, 20 Dec 2021 21:56:03 +0800
Subject: [PATCH 2419/4878] sfc: Check null pointer of rx_queue->page_ring

[ Upstream commit bdf1b5c3884f6a0dc91b0dbdb8c3b7d205f449e0 ]

Because of the possible failure of the kcalloc, it should be better to
set rx_queue->page_ptr_mask to 0 when it happens in order to maintain
the consistency.

Fixes: 5a6681e22c14 ("sfc: separate out SFC4000 ("Falcon") support into new sfc-falcon driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20211220135603.954944-1-jiasheng@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sfc/rx_common.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/rx_common.c b/drivers/net/ethernet/sfc/rx_common.c
index 19cf7cac1e6e9..8834bcb12fa97 100644
--- a/drivers/net/ethernet/sfc/rx_common.c
+++ b/drivers/net/ethernet/sfc/rx_common.c
@@ -150,7 +150,10 @@ static void efx_init_rx_recycle_ring(struct efx_rx_queue *rx_queue)
 					    efx->rx_bufs_per_page);
 	rx_queue->page_ring = kcalloc(page_ring_size,
 				      sizeof(*rx_queue->page_ring), GFP_KERNEL);
-	rx_queue->page_ptr_mask = page_ring_size - 1;
+	if (!rx_queue->page_ring)
+		rx_queue->page_ptr_mask = 0;
+	else
+		rx_queue->page_ptr_mask = page_ring_size - 1;
 }
 
 static void efx_fini_rx_recycle_ring(struct efx_rx_queue *rx_queue)
-- 
GitLab


From 2792fde84cceebc54645974545bdf900ef41da63 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Mon, 20 Dec 2021 22:03:44 +0800
Subject: [PATCH 2420/4878] sfc: falcon: Check null pointer of
 rx_queue->page_ring

[ Upstream commit 9b8bdd1eb5890aeeab7391dddcf8bd51f7b07216 ]

Because of the possible failure of the kcalloc, it should be better to
set rx_queue->page_ptr_mask to 0 when it happens in order to maintain
the consistency.

Fixes: 5a6681e22c14 ("sfc: separate out SFC4000 ("Falcon") support into new sfc-falcon driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20211220140344.978408-1-jiasheng@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sfc/falcon/rx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/falcon/rx.c b/drivers/net/ethernet/sfc/falcon/rx.c
index 966f13e7475dd..11a6aee852e92 100644
--- a/drivers/net/ethernet/sfc/falcon/rx.c
+++ b/drivers/net/ethernet/sfc/falcon/rx.c
@@ -728,7 +728,10 @@ static void ef4_init_rx_recycle_ring(struct ef4_nic *efx,
 					    efx->rx_bufs_per_page);
 	rx_queue->page_ring = kcalloc(page_ring_size,
 				      sizeof(*rx_queue->page_ring), GFP_KERNEL);
-	rx_queue->page_ptr_mask = page_ring_size - 1;
+	if (!rx_queue->page_ring)
+		rx_queue->page_ptr_mask = 0;
+	else
+		rx_queue->page_ptr_mask = page_ring_size - 1;
 }
 
 void ef4_init_rx_queue(struct ef4_rx_queue *rx_queue)
-- 
GitLab


From 676c572439e58b7ee6b7ca3f1e5595382921045c Mon Sep 17 00:00:00 2001
From: Andrea Righi <andrea.righi@canonical.com>
Date: Mon, 29 Nov 2021 00:08:13 -0800
Subject: [PATCH 2421/4878] Input: elantech - fix stack out of bound access in
 elantech_change_report_id()

[ Upstream commit 1d72d9f960ccf1052a0630a68c3d358791dbdaaa ]

The array param[] in elantech_change_report_id() must be at least 3
bytes, because elantech_read_reg_params() is calling ps2_command() with
PSMOUSE_CMD_GETINFO, that is going to access 3 bytes from param[], but
it's defined in the stack as an array of 2 bytes, therefore we have a
potential stack out-of-bounds access here, also confirmed by KASAN:

[    6.512374] BUG: KASAN: stack-out-of-bounds in __ps2_command+0x372/0x7e0
[    6.512397] Read of size 1 at addr ffff8881024d77c2 by task kworker/2:1/118

[    6.512416] CPU: 2 PID: 118 Comm: kworker/2:1 Not tainted 5.13.0-22-generic #22+arighi20211110
[    6.512428] Hardware name: LENOVO 20T8000QGE/20T8000QGE, BIOS R1AET32W (1.08 ) 08/14/2020
[    6.512436] Workqueue: events_long serio_handle_event
[    6.512453] Call Trace:
[    6.512462]  show_stack+0x52/0x58
[    6.512474]  dump_stack+0xa1/0xd3
[    6.512487]  print_address_description.constprop.0+0x1d/0x140
[    6.512502]  ? __ps2_command+0x372/0x7e0
[    6.512516]  __kasan_report.cold+0x7d/0x112
[    6.512527]  ? _raw_write_lock_irq+0x20/0xd0
[    6.512539]  ? __ps2_command+0x372/0x7e0
[    6.512552]  kasan_report+0x3c/0x50
[    6.512564]  __asan_load1+0x6a/0x70
[    6.512575]  __ps2_command+0x372/0x7e0
[    6.512589]  ? ps2_drain+0x240/0x240
[    6.512601]  ? dev_printk_emit+0xa2/0xd3
[    6.512612]  ? dev_vprintk_emit+0xc5/0xc5
[    6.512621]  ? __kasan_check_write+0x14/0x20
[    6.512634]  ? mutex_lock+0x8f/0xe0
[    6.512643]  ? __mutex_lock_slowpath+0x20/0x20
[    6.512655]  ps2_command+0x52/0x90
[    6.512670]  elantech_ps2_command+0x4f/0xc0 [psmouse]
[    6.512734]  elantech_change_report_id+0x1e6/0x256 [psmouse]
[    6.512799]  ? elantech_report_trackpoint.constprop.0.cold+0xd/0xd [psmouse]
[    6.512863]  ? ps2_command+0x7f/0x90
[    6.512877]  elantech_query_info.cold+0x6bd/0x9ed [psmouse]
[    6.512943]  ? elantech_setup_ps2+0x460/0x460 [psmouse]
[    6.513005]  ? psmouse_reset+0x69/0xb0 [psmouse]
[    6.513064]  ? psmouse_attr_set_helper+0x2a0/0x2a0 [psmouse]
[    6.513122]  ? phys_pmd_init+0x30e/0x521
[    6.513137]  elantech_init+0x8a/0x200 [psmouse]
[    6.513200]  ? elantech_init_ps2+0xf0/0xf0 [psmouse]
[    6.513249]  ? elantech_query_info+0x440/0x440 [psmouse]
[    6.513296]  ? synaptics_send_cmd+0x60/0x60 [psmouse]
[    6.513342]  ? elantech_query_info+0x440/0x440 [psmouse]
[    6.513388]  ? psmouse_try_protocol+0x11e/0x170 [psmouse]
[    6.513432]  psmouse_extensions+0x65d/0x6e0 [psmouse]
[    6.513476]  ? psmouse_try_protocol+0x170/0x170 [psmouse]
[    6.513519]  ? mutex_unlock+0x22/0x40
[    6.513526]  ? ps2_command+0x7f/0x90
[    6.513536]  ? psmouse_probe+0xa3/0xf0 [psmouse]
[    6.513580]  psmouse_switch_protocol+0x27d/0x2e0 [psmouse]
[    6.513624]  psmouse_connect+0x272/0x530 [psmouse]
[    6.513669]  serio_driver_probe+0x55/0x70
[    6.513679]  really_probe+0x190/0x720
[    6.513689]  driver_probe_device+0x160/0x1f0
[    6.513697]  device_driver_attach+0x119/0x130
[    6.513705]  ? device_driver_attach+0x130/0x130
[    6.513713]  __driver_attach+0xe7/0x1a0
[    6.513720]  ? device_driver_attach+0x130/0x130
[    6.513728]  bus_for_each_dev+0xfb/0x150
[    6.513738]  ? subsys_dev_iter_exit+0x10/0x10
[    6.513748]  ? _raw_write_unlock_bh+0x30/0x30
[    6.513757]  driver_attach+0x2d/0x40
[    6.513764]  serio_handle_event+0x199/0x3d0
[    6.513775]  process_one_work+0x471/0x740
[    6.513785]  worker_thread+0x2d2/0x790
[    6.513794]  ? process_one_work+0x740/0x740
[    6.513802]  kthread+0x1b4/0x1e0
[    6.513809]  ? set_kthread_struct+0x80/0x80
[    6.513816]  ret_from_fork+0x22/0x30

[    6.513832] The buggy address belongs to the page:
[    6.513838] page:00000000bc35e189 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1024d7
[    6.513847] flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)
[    6.513860] raw: 0017ffffc0000000 dead000000000100 dead000000000122 0000000000000000
[    6.513867] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[    6.513872] page dumped because: kasan: bad access detected

[    6.513879] addr ffff8881024d77c2 is located in stack of task kworker/2:1/118 at offset 34 in frame:
[    6.513887]  elantech_change_report_id+0x0/0x256 [psmouse]

[    6.513941] this frame has 1 object:
[    6.513947]  [32, 34) 'param'

[    6.513956] Memory state around the buggy address:
[    6.513962]  ffff8881024d7680: f2 f2 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00
[    6.513969]  ffff8881024d7700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    6.513976] >ffff8881024d7780: 00 00 00 00 f1 f1 f1 f1 02 f3 f3 f3 00 00 00 00
[    6.513982]                                            ^
[    6.513988]  ffff8881024d7800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    6.513995]  ffff8881024d7880: 00 f1 f1 f1 f1 03 f2 03 f2 03 f3 f3 f3 00 00 00
[    6.514000] ==================================================================

Define param[] in elantech_change_report_id() as an array of 3 bytes to
prevent the out-of-bounds access in the stack.

Fixes: e4c9062717fe ("Input: elantech - fix protocol errors for some trackpoints in SMBus mode")
BugLink: https://bugs.launchpad.net/bugs/1945590
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Link: https://lore.kernel.org/r/20211116095559.24395-1-andrea.righi@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/mouse/elantech.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 4357d30c15c56..2e53ea261e014 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1588,7 +1588,13 @@ static const struct dmi_system_id no_hw_res_dmi_table[] = {
  */
 static int elantech_change_report_id(struct psmouse *psmouse)
 {
-	unsigned char param[2] = { 0x10, 0x03 };
+	/*
+	 * NOTE: the code is expecting to receive param[] as an array of 3
+	 * items (see __ps2_command()), even if in this case only 2 are
+	 * actually needed. Make sure the array size is 3 to avoid potential
+	 * stack out-of-bound accesses.
+	 */
+	unsigned char param[3] = { 0x10, 0x03 };
 
 	if (elantech_write_reg_params(psmouse, 0x7, param) ||
 	    elantech_read_reg_params(psmouse, 0x7, param) ||
-- 
GitLab


From ba696b470839d70c6b8290c1f798bac7fb2a584c Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 6 Dec 2021 09:22:36 +0000
Subject: [PATCH 2422/4878] pinctrl: bcm2835: Change init order for gpio hogs

[ Upstream commit 266423e60ea1b953fcc0cd97f3dad85857e434d1 ]

...and gpio-ranges

pinctrl-bcm2835 is a combined pinctrl/gpio driver. Currently the gpio
side is registered first, but this breaks gpio hogs (which are
configured during gpiochip_add_data). Part of the hog initialisation
is a call to pinctrl_gpio_request, and since the pinctrl driver hasn't
yet been registered this results in an -EPROBE_DEFER from which it can
never recover.

Change the initialisation sequence to register the pinctrl driver
first.

This also solves a similar problem with the gpio-ranges property, which
is required in order for released pins to be returned to inputs.

Fixes: 73345a18d464b ("pinctrl: bcm2835: Pass irqchip when adding gpiochip")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206092237.4105895-2-phil@raspberrypi.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/bcm/pinctrl-bcm2835.c | 29 +++++++++++++++------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 1d21129f7751c..40ce18a0d0190 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -1244,6 +1244,18 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 		raw_spin_lock_init(&pc->irq_lock[i]);
 	}
 
+	pc->pctl_desc = *pdata->pctl_desc;
+	pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
+	if (IS_ERR(pc->pctl_dev)) {
+		gpiochip_remove(&pc->gpio_chip);
+		return PTR_ERR(pc->pctl_dev);
+	}
+
+	pc->gpio_range = *pdata->gpio_range;
+	pc->gpio_range.base = pc->gpio_chip.base;
+	pc->gpio_range.gc = &pc->gpio_chip;
+	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
+
 	girq = &pc->gpio_chip.irq;
 	girq->chip = &bcm2835_gpio_irq_chip;
 	girq->parent_handler = bcm2835_gpio_irq_handler;
@@ -1251,8 +1263,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 	girq->parents = devm_kcalloc(dev, BCM2835_NUM_IRQS,
 				     sizeof(*girq->parents),
 				     GFP_KERNEL);
-	if (!girq->parents)
+	if (!girq->parents) {
+		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
 		return -ENOMEM;
+	}
 
 	if (is_7211) {
 		pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS,
@@ -1303,21 +1317,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 	err = gpiochip_add_data(&pc->gpio_chip, pc);
 	if (err) {
 		dev_err(dev, "could not add GPIO chip\n");
+		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
 		return err;
 	}
 
-	pc->pctl_desc = *pdata->pctl_desc;
-	pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
-	if (IS_ERR(pc->pctl_dev)) {
-		gpiochip_remove(&pc->gpio_chip);
-		return PTR_ERR(pc->pctl_dev);
-	}
-
-	pc->gpio_range = *pdata->gpio_range;
-	pc->gpio_range.base = pc->gpio_chip.base;
-	pc->gpio_range.gc = &pc->gpio_chip;
-	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
-
 	return 0;
 }
 
-- 
GitLab


From fa2e149260bf90bbbe83dbc1ed9c9113d13d3afd Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 6 Nov 2021 10:02:44 -0700
Subject: [PATCH 2423/4878] hwmon: (lm90) Fix usage of CONFIG2 register in
 detect function

[ Upstream commit fce15c45d3fbd9fc1feaaf3210d8e3f8b33dfd3a ]

The detect function had a comment "Make compiler happy" when id did not
read the second configuration register. As it turns out, the code was
checking the contents of this register for manufacturer ID 0xA1 (NXP
Semiconductor/Philips), but never actually read the register. So it
wasn't surprising that the compiler complained, and it indeed had a point.
Fix the code to read the register contents for manufacturer ID 0xa1.

At the same time, the code was reading the register for manufacturer ID
0x41 (Analog Devices), but it was not using the results. In effect it was
just checking if reading the register returned an error. That doesn't
really add much if any value, so stop doing that.

Fixes: f90be42fb383 ("hwmon: (lm90) Refactor reading of config2 register")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/lm90.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index ebbfd5f352c06..ef55a1486099f 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -1438,12 +1438,11 @@ static int lm90_detect(struct i2c_client *client,
 	if (man_id < 0 || chip_id < 0 || config1 < 0 || convrate < 0)
 		return -ENODEV;
 
-	if (man_id == 0x01 || man_id == 0x5C || man_id == 0x41) {
+	if (man_id == 0x01 || man_id == 0x5C || man_id == 0xA1) {
 		config2 = i2c_smbus_read_byte_data(client, LM90_REG_R_CONFIG2);
 		if (config2 < 0)
 			return -ENODEV;
-	} else
-		config2 = 0;		/* Make compiler happy */
+	}
 
 	if ((address == 0x4C || address == 0x4D)
 	 && man_id == 0x01) { /* National Semiconductor */
-- 
GitLab


From 196df56c3dc8bb36caf0bda25c26056a838ed273 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 18 Oct 2021 20:03:32 -0700
Subject: [PATCH 2424/4878] hwmon: (lm90) Add basic support for TI TMP461

[ Upstream commit f8344f7693a25d9025a59d164450b50c6f5aa3c0 ]

TMP461 is almost identical to TMP451 and was actually detected as TMP451
with the existing lm90 driver if its I2C address is 0x4c. Add support
for it to the lm90 driver. At the same time, improve the chip detection
function to at least try to distinguish between TMP451 and TMP461.

As a side effect, this fixes commit 24333ac26d01 ("hwmon: (tmp401) use
smb word operations instead of 2 smb byte operations"). TMP461 does not
support word operations on temperature registers, which causes bad
temperature readings with the tmp401 driver. The lm90 driver does not
perform word operations on temperature registers and thus does not have
this problem.

Support is listed as basic because TMP461 supports a sensor resolution
of 0.0625 degrees C, while the lm90 driver assumes a resolution of 0.125
degrees C. Also, the TMP461 supports negative temperatures with its
default temperature range, which is not the case for similar chips
supported by the lm90 and the tmp401 drivers. Those limitations will be
addressed with follow-up patches.

Fixes: 24333ac26d01 ("hwmon: (tmp401) use smb word operations instead of 2 smb byte operations")
Reported-by: David T. Wilson <david.wilson@nasa.gov>
Cc: David T. Wilson <david.wilson@nasa.gov>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/hwmon/lm90.rst | 10 +++++++
 drivers/hwmon/Kconfig        |  2 +-
 drivers/hwmon/lm90.c         | 54 ++++++++++++++++++++++++++----------
 3 files changed, 50 insertions(+), 16 deletions(-)

diff --git a/Documentation/hwmon/lm90.rst b/Documentation/hwmon/lm90.rst
index 3da8c6e06a365..05391fb4042d9 100644
--- a/Documentation/hwmon/lm90.rst
+++ b/Documentation/hwmon/lm90.rst
@@ -265,6 +265,16 @@ Supported chips:
 
 	       https://www.ti.com/litv/pdf/sbos686
 
+  * Texas Instruments TMP461
+
+    Prefix: 'tmp461'
+
+    Addresses scanned: I2C 0x48 through 0x4F
+
+    Datasheet: Publicly available at TI website
+
+	       https://www.ti.com/lit/gpn/tmp461
+
 Author: Jean Delvare <jdelvare@suse.de>
 
 
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index a850e4f0e0bde..0c2b032ee6176 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1275,7 +1275,7 @@ config SENSORS_LM90
 	  Maxim MAX6646, MAX6647, MAX6648, MAX6649, MAX6654, MAX6657, MAX6658,
 	  MAX6659, MAX6680, MAX6681, MAX6692, MAX6695, MAX6696,
 	  ON Semiconductor NCT1008, Winbond/Nuvoton W83L771W/G/AWG/ASG,
-	  Philips SA56004, GMT G781, and Texas Instruments TMP451
+	  Philips SA56004, GMT G781, Texas Instruments TMP451 and TMP461
 	  sensor chips.
 
 	  This driver can also be built as a module. If so, the module
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index ef55a1486099f..ffda70dcd9ae9 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -69,10 +69,10 @@
  * This driver also supports the G781 from GMT. This device is compatible
  * with the ADM1032.
  *
- * This driver also supports TMP451 from Texas Instruments. This device is
- * supported in both compatibility and extended mode. It's mostly compatible
- * with ADT7461 except for local temperature low byte register and max
- * conversion rate.
+ * This driver also supports TMP451 and TMP461 from Texas Instruments.
+ * Those devices are supported in both compatibility and extended mode.
+ * They are mostly compatible with ADT7461 except for local temperature
+ * low byte register and max conversion rate.
  *
  * Since the LM90 was the first chipset supported by this driver, most
  * comments will refer to this chipset, but are actually general and
@@ -112,7 +112,7 @@ static const unsigned short normal_i2c[] = {
 	0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
 
 enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
-	max6646, w83l771, max6696, sa56004, g781, tmp451, max6654 };
+	max6646, w83l771, max6696, sa56004, g781, tmp451, tmp461, max6654 };
 
 /*
  * The LM90 registers
@@ -168,8 +168,12 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 
 #define LM90_MAX_CONVRATE_MS	16000	/* Maximum conversion rate in ms */
 
-/* TMP451 registers */
+/* TMP451/TMP461 registers */
 #define TMP451_REG_R_LOCAL_TEMPL	0x15
+#define TMP451_REG_CONALERT		0x22
+
+#define TMP461_REG_CHEN			0x16
+#define TMP461_REG_DFC			0x24
 
 /*
  * Device flags
@@ -229,6 +233,7 @@ static const struct i2c_device_id lm90_id[] = {
 	{ "w83l771", w83l771 },
 	{ "sa56004", sa56004 },
 	{ "tmp451", tmp451 },
+	{ "tmp461", tmp461 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, lm90_id);
@@ -326,6 +331,10 @@ static const struct of_device_id __maybe_unused lm90_of_match[] = {
 		.compatible = "ti,tmp451",
 		.data = (void *)tmp451
 	},
+	{
+		.compatible = "ti,tmp461",
+		.data = (void *)tmp461
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, lm90_of_match);
@@ -427,6 +436,13 @@ static const struct lm90_params lm90_params[] = {
 		.max_convrate = 9,
 		.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
 	},
+	[tmp461] = {
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
+		.alert_alarms = 0x7c,
+		.max_convrate = 9,
+		.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
+	},
 };
 
 /*
@@ -1616,18 +1632,26 @@ static int lm90_detect(struct i2c_client *client,
 		 && convrate <= 0x08)
 			name = "g781";
 	} else
-	if (address == 0x4C
-	 && man_id == 0x55) { /* Texas Instruments */
-		int local_ext;
+	if (man_id == 0x55 && chip_id == 0x00 &&
+	    (config1 & 0x1B) == 0x00 && convrate <= 0x09) {
+		int local_ext, conalert, chen, dfc;
 
 		local_ext = i2c_smbus_read_byte_data(client,
 						     TMP451_REG_R_LOCAL_TEMPL);
-
-		if (chip_id == 0x00 /* TMP451 */
-		 && (config1 & 0x1B) == 0x00
-		 && convrate <= 0x09
-		 && (local_ext & 0x0F) == 0x00)
-			name = "tmp451";
+		conalert = i2c_smbus_read_byte_data(client,
+						    TMP451_REG_CONALERT);
+		chen = i2c_smbus_read_byte_data(client, TMP461_REG_CHEN);
+		dfc = i2c_smbus_read_byte_data(client, TMP461_REG_DFC);
+
+		if ((local_ext & 0x0F) == 0x00 &&
+		    (conalert & 0xf1) == 0x01 &&
+		    (chen & 0xfc) == 0x00 &&
+		    (dfc & 0xfc) == 0x00) {
+			if (address == 0x4c && !(chen & 0x03))
+				name = "tmp451";
+			else if (address >= 0x48 && address <= 0x4f)
+				name = "tmp461";
+		}
 	}
 
 	if (!name) { /* identification failed */
-- 
GitLab


From 2464738d0ee4ec57bd6f561acc3b178c79703c38 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 21 Oct 2021 01:49:50 -0700
Subject: [PATCH 2425/4878] hwmon: (lm90) Introduce flag indicating extended
 temperature support

[ Upstream commit f347e249fcf920ad6974cbd898e2ec0b366a1c34 ]

A flag indicating extended temperature support makes it easier
to add support for additional chips with this functionality.

Cc: David T. Wilson <david.wilson@nasa.gov>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/lm90.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index ffda70dcd9ae9..2961e992faa85 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -186,7 +186,8 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_HAVE_EMERGENCY_ALARM (1 << 5)/* emergency alarm		*/
 #define LM90_HAVE_TEMP3		(1 << 6) /* 3rd temperature sensor	*/
 #define LM90_HAVE_BROKEN_ALERT	(1 << 7) /* Broken alert		*/
-#define LM90_PAUSE_FOR_CONFIG	(1 << 8) /* Pause conversion for config	*/
+#define LM90_HAVE_EXTENDED_TEMP	(1 << 8) /* extended temperature support*/
+#define LM90_PAUSE_FOR_CONFIG	(1 << 9) /* Pause conversion for config	*/
 
 /* LM90 status */
 #define LM90_STATUS_LTHRM	(1 << 0) /* local THERM limit tripped */
@@ -359,7 +360,7 @@ static const struct lm90_params lm90_params[] = {
 	},
 	[adt7461] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
 		.alert_alarms = 0x7c,
 		.max_convrate = 10,
 	},
@@ -431,7 +432,7 @@ static const struct lm90_params lm90_params[] = {
 	},
 	[tmp451] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
 		.alert_alarms = 0x7c,
 		.max_convrate = 9,
 		.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
@@ -1013,7 +1014,7 @@ static int lm90_get_temp11(struct lm90_data *data, int index)
 	s16 temp11 = data->temp11[index];
 	int temp;
 
-	if (data->kind == adt7461 || data->kind == tmp451)
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP)
 		temp = temp_from_u16_adt7461(data, temp11);
 	else if (data->kind == max6646)
 		temp = temp_from_u16(temp11);
@@ -1047,7 +1048,7 @@ static int lm90_set_temp11(struct lm90_data *data, int index, long val)
 	if (data->kind == lm99 && index <= 2)
 		val -= 16000;
 
-	if (data->kind == adt7461 || data->kind == tmp451)
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP)
 		data->temp11[index] = temp_to_u16_adt7461(data, val);
 	else if (data->kind == max6646)
 		data->temp11[index] = temp_to_u8(val) << 8;
@@ -1074,7 +1075,7 @@ static int lm90_get_temp8(struct lm90_data *data, int index)
 	s8 temp8 = data->temp8[index];
 	int temp;
 
-	if (data->kind == adt7461 || data->kind == tmp451)
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP)
 		temp = temp_from_u8_adt7461(data, temp8);
 	else if (data->kind == max6646)
 		temp = temp_from_u8(temp8);
@@ -1107,7 +1108,7 @@ static int lm90_set_temp8(struct lm90_data *data, int index, long val)
 	if (data->kind == lm99 && index == 3)
 		val -= 16000;
 
-	if (data->kind == adt7461 || data->kind == tmp451)
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP)
 		data->temp8[index] = temp_to_u8_adt7461(data, val);
 	else if (data->kind == max6646)
 		data->temp8[index] = temp_to_u8(val);
@@ -1125,7 +1126,7 @@ static int lm90_get_temphyst(struct lm90_data *data, int index)
 {
 	int temp;
 
-	if (data->kind == adt7461 || data->kind == tmp451)
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP)
 		temp = temp_from_u8_adt7461(data, data->temp8[index]);
 	else if (data->kind == max6646)
 		temp = temp_from_u8(data->temp8[index]);
@@ -1145,7 +1146,7 @@ static int lm90_set_temphyst(struct lm90_data *data, long val)
 	int temp;
 	int err;
 
-	if (data->kind == adt7461 || data->kind == tmp451)
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP)
 		temp = temp_from_u8_adt7461(data, data->temp8[LOCAL_CRIT]);
 	else if (data->kind == max6646)
 		temp = temp_from_u8(data->temp8[LOCAL_CRIT]);
@@ -1698,7 +1699,7 @@ static int lm90_init_client(struct i2c_client *client, struct lm90_data *data)
 	lm90_set_convrate(client, data, 500); /* 500ms; 2Hz conversion rate */
 
 	/* Check Temperature Range Select */
-	if (data->kind == adt7461 || data->kind == tmp451) {
+	if (data->flags & LM90_HAVE_EXTENDED_TEMP) {
 		if (config & 0x04)
 			data->flags |= LM90_FLAG_ADT7461_EXT;
 	}
-- 
GitLab


From 51c7b2a7b86a923cc410882f3b8bde09ba412f3c Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 13 Nov 2021 08:55:06 -0800
Subject: [PATCH 2426/4878] hwmon: (lm90) Drop critical attribute support for
 MAX6654

[ Upstream commit 16ba51b5dcd3f6dde2e51d5ccc86313119dcf889 ]

Tests with a real chip and a closer look into the datasheet show that
MAX6654 does not support CRIT/THERM/OVERTEMP limits, so drop support
of the respective attributes for this chip.

Introduce LM90_HAVE_CRIT flag and use it to instantiate critical limit
attributes to solve the problem.

Cc: Josh Lehan <krellan@google.com>
Fixes: 229d495d8189 ("hwmon: (lm90) Add max6654 support to lm90 driver")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/lm90.c | 86 +++++++++++++++++++++++++-------------------
 1 file changed, 49 insertions(+), 37 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 2961e992faa85..97e0332f46790 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -35,13 +35,14 @@
  * explicitly as max6659, or if its address is not 0x4c.
  * These chips lack the remote temperature offset feature.
  *
- * This driver also supports the MAX6654 chip made by Maxim. This chip can
- * be at 9 different addresses, similar to MAX6680/MAX6681. The MAX6654 is
- * otherwise similar to MAX6657/MAX6658/MAX6659. Extended range is available
- * by setting the configuration register accordingly, and is done during
- * initialization. Extended precision is only available at conversion rates
- * of 1 Hz and slower. Note that extended precision is not enabled by
- * default, as this driver initializes all chips to 2 Hz by design.
+ * This driver also supports the MAX6654 chip made by Maxim. This chip can be
+ * at 9 different addresses, similar to MAX6680/MAX6681. The MAX6654 is similar
+ * to MAX6657/MAX6658/MAX6659, but does not support critical temperature
+ * limits. Extended range is available by setting the configuration register
+ * accordingly, and is done during initialization. Extended precision is only
+ * available at conversion rates of 1 Hz and slower. Note that extended
+ * precision is not enabled by default, as this driver initializes all chips
+ * to 2 Hz by design.
  *
  * This driver also supports the MAX6646, MAX6647, MAX6648, MAX6649 and
  * MAX6692 chips made by Maxim.  These are again similar to the LM86,
@@ -188,6 +189,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_HAVE_BROKEN_ALERT	(1 << 7) /* Broken alert		*/
 #define LM90_HAVE_EXTENDED_TEMP	(1 << 8) /* extended temperature support*/
 #define LM90_PAUSE_FOR_CONFIG	(1 << 9) /* Pause conversion for config	*/
+#define LM90_HAVE_CRIT		(1 << 10)/* Chip supports CRIT/OVERT register	*/
 
 /* LM90 status */
 #define LM90_STATUS_LTHRM	(1 << 0) /* local THERM limit tripped */
@@ -354,38 +356,43 @@ struct lm90_params {
 static const struct lm90_params lm90_params[] = {
 	[adm1032] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 10,
 	},
 	[adt7461] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP
+		  | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 10,
 	},
 	[g781] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 8,
 	},
 	[lm86] = {
-		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+		  | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7b,
 		.max_convrate = 9,
 	},
 	[lm90] = {
-		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+		  | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7b,
 		.max_convrate = 9,
 	},
 	[lm99] = {
-		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+		  | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7b,
 		.max_convrate = 9,
 	},
 	[max6646] = {
+		.flags = LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 6,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
@@ -396,50 +403,50 @@ static const struct lm90_params lm90_params[] = {
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
 	[max6657] = {
-		.flags = LM90_PAUSE_FOR_CONFIG,
+		.flags = LM90_PAUSE_FOR_CONFIG | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 8,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
 	[max6659] = {
-		.flags = LM90_HAVE_EMERGENCY,
+		.flags = LM90_HAVE_EMERGENCY | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 8,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
 	[max6680] = {
-		.flags = LM90_HAVE_OFFSET,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 7,
 	},
 	[max6696] = {
 		.flags = LM90_HAVE_EMERGENCY
-		  | LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3,
+		  | LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3 | LM90_HAVE_CRIT,
 		.alert_alarms = 0x1c7c,
 		.max_convrate = 6,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
 	[w83l771] = {
-		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 8,
 	},
 	[sa56004] = {
-		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7b,
 		.max_convrate = 9,
 		.reg_local_ext = SA56004_REG_R_LOCAL_TEMPL,
 	},
 	[tmp451] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 9,
 		.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
 	},
 	[tmp461] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP,
+		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_EXTENDED_TEMP | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 9,
 		.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
@@ -667,20 +674,22 @@ static int lm90_update_limits(struct device *dev)
 	struct i2c_client *client = data->client;
 	int val;
 
-	val = lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT);
-	if (val < 0)
-		return val;
-	data->temp8[LOCAL_CRIT] = val;
+	if (data->flags & LM90_HAVE_CRIT) {
+		val = lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT);
+		if (val < 0)
+			return val;
+		data->temp8[LOCAL_CRIT] = val;
 
-	val = lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT);
-	if (val < 0)
-		return val;
-	data->temp8[REMOTE_CRIT] = val;
+		val = lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT);
+		if (val < 0)
+			return val;
+		data->temp8[REMOTE_CRIT] = val;
 
-	val = lm90_read_reg(client, LM90_REG_R_TCRIT_HYST);
-	if (val < 0)
-		return val;
-	data->temp_hyst = val;
+		val = lm90_read_reg(client, LM90_REG_R_TCRIT_HYST);
+		if (val < 0)
+			return val;
+		data->temp_hyst = val;
+	}
 
 	val = lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH);
 	if (val < 0)
@@ -1866,11 +1875,14 @@ static int lm90_probe(struct i2c_client *client)
 	info->config = data->channel_config;
 
 	data->channel_config[0] = HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
-		HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
-		HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM;
+		HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM;
 	data->channel_config[1] = HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX |
-		HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM |
-		HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT;
+		HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | HWMON_T_FAULT;
+
+	if (data->flags & LM90_HAVE_CRIT) {
+		data->channel_config[0] |= HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_CRIT_HYST;
+		data->channel_config[1] |= HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_CRIT_HYST;
+	}
 
 	if (data->flags & LM90_HAVE_OFFSET)
 		data->channel_config[1] |= HWMON_T_OFFSET;
-- 
GitLab


From a96c08e0b41e022b440ee9c8327b14dd6eb094f7 Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@foxmail.com>
Date: Mon, 13 Dec 2021 15:39:31 +0800
Subject: [PATCH 2427/4878] ALSA: jack: Check the return value of kstrdup()

commit c01c1db1dc632edafb0dff32d40daf4f9c1a4e19 upstream.

kstrdup() can return NULL, it is better to check the return value of it.

Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/tencent_094816F3522E0DC704056C789352EBBF0606@qq.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/core/jack.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/core/jack.c b/sound/core/jack.c
index 503c8af79d550..d6502dff247a8 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -220,6 +220,10 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 		return -ENOMEM;
 
 	jack->id = kstrdup(id, GFP_KERNEL);
+	if (jack->id == NULL) {
+		kfree(jack);
+		return -ENOMEM;
+	}
 
 	/* don't creat input device for phantom jack */
 	if (!phantom_jack) {
-- 
GitLab


From 69e492161c7b563684caf0fad01382279c065213 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@gmail.com>
Date: Sun, 12 Dec 2021 17:20:25 +0000
Subject: [PATCH 2428/4878] ALSA: drivers: opl3: Fix incorrect use of vp->state

commit 2dee54b289fbc810669a1b2b8a0887fa1c9a14d7 upstream.

Static analysis with scan-build has found an assignment to vp2 that is
never used. It seems that the check on vp->state > 0 should be actually
on vp2->state instead. Fix this.

This dates back to 2002, I found the offending commit from the git
history git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git,
commit 91e39521bbf6 ("[PATCH] ALSA patch for 2.5.4")

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211212172025.470367-1-colin.i.king@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/drivers/opl3/opl3_midi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/drivers/opl3/opl3_midi.c b/sound/drivers/opl3/opl3_midi.c
index eb23c55323ae1..a2583a30c45ad 100644
--- a/sound/drivers/opl3/opl3_midi.c
+++ b/sound/drivers/opl3/opl3_midi.c
@@ -398,7 +398,7 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
 	}
 	if (instr_4op) {
 		vp2 = &opl3->voices[voice + 3];
-		if (vp->state > 0) {
+		if (vp2->state > 0) {
 			opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK +
 					       voice_offset + 3);
 			reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT;
-- 
GitLab


From 4cb7dc2e307498f8e50eac438d1bece84fd853c6 Mon Sep 17 00:00:00 2001
From: Bradley Scott <Bradley.Scott@zebra.com>
Date: Mon, 13 Dec 2021 10:49:39 -0500
Subject: [PATCH 2429/4878] ALSA: hda/realtek: Amp init fixup for HP ZBook 15
 G6

commit d296a74b7b59ff9116236c17edb25f26935dbf70 upstream.

HP ZBook 15 G6 (SSID 103c:860f) needs the same speaker amplifier
initialization as used on several other HP laptops using ALC285.

Signed-off-by: Bradley Scott <Bradley.Scott@zebra.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211213154938.503201-1-Bradley.Scott@zebra.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index bed2a93001635..6005e11b49b59 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8599,6 +8599,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x84da, "HP OMEN dc0019-ur", ALC295_FIXUP_HP_OMEN),
 	SND_PCI_QUIRK(0x103c, 0x84e7, "HP Pavilion 15", ALC269_FIXUP_HP_MUTE_LED_MIC3),
 	SND_PCI_QUIRK(0x103c, 0x8519, "HP Spectre x360 15-df0xxx", ALC285_FIXUP_HP_SPECTRE_X360),
+	SND_PCI_QUIRK(0x103c, 0x860f, "HP ZBook 15 G6", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x861f, "HP Elite Dragonfly G1", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x869d, "HP", ALC236_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x86c7, "HP Envy AiO 32", ALC274_FIXUP_HP_ENVY_GPIO),
-- 
GitLab


From 7470780f3b0c2a8ef53562ed92fbb10b03024e47 Mon Sep 17 00:00:00 2001
From: Bradley Scott <bscott@teksavvy.com>
Date: Mon, 13 Dec 2021 11:22:47 -0500
Subject: [PATCH 2430/4878] ALSA: hda/realtek: Add new alc285-hp-amp-init model

commit aa72394667e5cea3547e4c41ddff7ca8c632d764 upstream.

Adds a new "alc285-hp-amp-init" model that can be used to apply the ALC285
HP speaker amplifier initialization fixup to devices that are not already
known by passing "hda_model=alc285-hp-amp-init" to the
snd-sof-intel-hda-common module or "model=alc285-hp-amp-init" to the
snd-hda-intel module, depending on which is being used.

Signed-off-by: Bradley Scott <bscott@teksavvy.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211213162246.506838-1-bscott@teksavvy.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/sound/hd-audio/models.rst | 2 ++
 sound/pci/hda/patch_realtek.c           | 1 +
 2 files changed, 3 insertions(+)

diff --git a/Documentation/sound/hd-audio/models.rst b/Documentation/sound/hd-audio/models.rst
index 0ea967d345838..d25335993e553 100644
--- a/Documentation/sound/hd-audio/models.rst
+++ b/Documentation/sound/hd-audio/models.rst
@@ -326,6 +326,8 @@ usi-headset
     Headset support on USI machines
 dual-codecs
     Lenovo laptops with dual codecs
+alc285-hp-amp-init
+    HP laptops which require speaker amplifier initialization (ALC285)
 
 ALC680
 ======
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6005e11b49b59..cd4148989942a 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -9061,6 +9061,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
 	{.id = ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP, .name = "alc287-ideapad-bass-spk-amp"},
 	{.id = ALC623_FIXUP_LENOVO_THINKSTATION_P340, .name = "alc623-lenovo-thinkstation-p340"},
 	{.id = ALC255_FIXUP_ACER_HEADPHONE_AND_MIC, .name = "alc255-acer-headphone-and-mic"},
+	{.id = ALC285_FIXUP_HP_GPIO_AMP_INIT, .name = "alc285-hp-amp-init"},
 	{}
 };
 #define ALC225_STANDARD_PINS \
-- 
GitLab


From 2b4c020b70cc943f5d3ae7cd59059e7b2e0cb0ab Mon Sep 17 00:00:00 2001
From: Werner Sembach <wse@tuxedocomputers.com>
Date: Wed, 15 Dec 2021 20:16:46 +0100
Subject: [PATCH 2431/4878] ALSA: hda/realtek: Fix quirk for Clevo NJ51CU

commit edca7cc4b0accfa69dc032442fe0684e59c691b8 upstream.

The Clevo NJ51CU comes either with the ALC293 or the ALC256 codec, but uses
the 0x8686 subproduct id in both cases. The ALC256 codec needs a different
quirk for the headset microphone working and and edditional quirk for sound
working after suspend and resume.

When waking up from s3 suspend the Coef 0x10 is set to 0x0220 instead of
0x0020 on  the ALC256 codec. Setting the value manually makes the sound
work again. This patch does this automatically.

[ minor coding style fix by tiwai ]

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Fixes: b5acfe152abaa ("ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220)")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211215191646.844644-1-wse@tuxedocomputers.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index cd4148989942a..14ce48f1a8e47 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6492,6 +6492,23 @@ static void alc233_fixup_no_audio_jack(struct hda_codec *codec,
 	alc_process_coef_fw(codec, alc233_fixup_no_audio_jack_coefs);
 }
 
+static void alc256_fixup_mic_no_presence_and_resume(struct hda_codec *codec,
+						    const struct hda_fixup *fix,
+						    int action)
+{
+	/*
+	 * The Clevo NJ51CU comes either with the ALC293 or the ALC256 codec,
+	 * but uses the 0x8686 subproduct id in both cases. The ALC256 codec
+	 * needs an additional quirk for sound working after suspend and resume.
+	 */
+	if (codec->core.vendor_id == 0x10ec0256) {
+		alc_update_coef_idx(codec, 0x10, 1<<9, 0);
+		snd_hda_codec_set_pincfg(codec, 0x19, 0x04a11120);
+	} else {
+		snd_hda_codec_set_pincfg(codec, 0x1a, 0x04a1113c);
+	}
+}
+
 enum {
 	ALC269_FIXUP_GPIO2,
 	ALC269_FIXUP_SONY_VAIO,
@@ -6711,6 +6728,7 @@ enum {
 	ALC256_FIXUP_SET_COEF_DEFAULTS,
 	ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 	ALC233_FIXUP_NO_AUDIO_JACK,
+	ALC256_FIXUP_MIC_NO_PRESENCE_AND_RESUME,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8429,6 +8447,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc233_fixup_no_audio_jack,
 	},
+	[ALC256_FIXUP_MIC_NO_PRESENCE_AND_RESUME] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc256_fixup_mic_no_presence_and_resume,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HEADSET_MODE_NO_HP_MIC
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -8767,7 +8791,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1558, 0x8562, "Clevo NH[5|7][0-9]RZ[Q]", ALC269_FIXUP_DMIC),
 	SND_PCI_QUIRK(0x1558, 0x8668, "Clevo NP50B[BE]", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x8680, "Clevo NJ50LU", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
-	SND_PCI_QUIRK(0x1558, 0x8686, "Clevo NH50[CZ]U", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1558, 0x8686, "Clevo NH50[CZ]U", ALC256_FIXUP_MIC_NO_PRESENCE_AND_RESUME),
 	SND_PCI_QUIRK(0x1558, 0x8a20, "Clevo NH55DCQ-Y", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x8a51, "Clevo NH70RCQ-Y", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1558, 0x8d50, "Clevo NH55RCQ-M", ALC293_FIXUP_SYSTEM76_MIC_NO_PRESENCE),
-- 
GitLab


From 30140e252fdb74884d5ef34f5e48d2fc6a79a433 Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Mon, 6 Dec 2021 22:08:04 +0100
Subject: [PATCH 2432/4878] ASoC: meson: aiu: Move AIU_I2S_MISC hold setting to
 aiu-fifo-i2s

commit ee907afb0c39a41ee74b862882cfe12820c74b98 upstream.

The out-of-tree vendor driver uses the following approach to set the
AIU_I2S_MISC register:
1) write AIU_MEM_I2S_START_PTR and AIU_MEM_I2S_RD_PTR
2) configure AIU_I2S_MUTE_SWAP[15:0]
3) write AIU_MEM_I2S_END_PTR
4) set AIU_I2S_MISC[2] to 1 (documented as: "put I2S interface in hold
   mode")
5) set AIU_I2S_MISC[4] to 1 (depending on the driver revision it always
   stays at 1 while for older drivers this bit is unset in step 4)
6) set AIU_I2S_MISC[2] to 0
7) write AIU_MEM_I2S_MASKS
8) toggle AIU_MEM_I2S_CONTROL[0]
9) toggle AIU_MEM_I2S_BUF_CNTL[0]

Move setting the AIU_I2S_MISC[2] bit to aiu_fifo_i2s_hw_params() so it
resembles the flow in the vendor kernel more closely. While here also
configure AIU_I2S_MISC[4] (documented as: "force each audio data to
left or right according to the bit attached with the audio data")
similar to how the vendor driver does this. This fixes the infamous and
long-standing "machine gun noise" issue (a buffer underrun issue).

Fixes: 6ae9ca9ce986bf ("ASoC: meson: aiu: add i2s and spdif support")
Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Reported-by: Geraldo Nascimento <geraldogabriel@gmail.com>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Tested-by: Geraldo Nascimento <geraldogabriel@gmail.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Cc: stable@vger.kernel.org
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20211206210804.2512999-3-martin.blumenstingl@googlemail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/meson/aiu-encoder-i2s.c | 33 -------------------------------
 sound/soc/meson/aiu-fifo-i2s.c    | 19 ++++++++++++++++++
 2 files changed, 19 insertions(+), 33 deletions(-)

diff --git a/sound/soc/meson/aiu-encoder-i2s.c b/sound/soc/meson/aiu-encoder-i2s.c
index 9322245521463..67729de41a73e 100644
--- a/sound/soc/meson/aiu-encoder-i2s.c
+++ b/sound/soc/meson/aiu-encoder-i2s.c
@@ -18,7 +18,6 @@
 #define AIU_RST_SOFT_I2S_FAST		BIT(0)
 
 #define AIU_I2S_DAC_CFG_MSB_FIRST	BIT(2)
-#define AIU_I2S_MISC_HOLD_EN		BIT(2)
 #define AIU_CLK_CTRL_I2S_DIV_EN		BIT(0)
 #define AIU_CLK_CTRL_I2S_DIV		GENMASK(3, 2)
 #define AIU_CLK_CTRL_AOCLK_INVERT	BIT(6)
@@ -36,37 +35,6 @@ static void aiu_encoder_i2s_divider_enable(struct snd_soc_component *component,
 				      enable ? AIU_CLK_CTRL_I2S_DIV_EN : 0);
 }
 
-static void aiu_encoder_i2s_hold(struct snd_soc_component *component,
-				 bool enable)
-{
-	snd_soc_component_update_bits(component, AIU_I2S_MISC,
-				      AIU_I2S_MISC_HOLD_EN,
-				      enable ? AIU_I2S_MISC_HOLD_EN : 0);
-}
-
-static int aiu_encoder_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
-				   struct snd_soc_dai *dai)
-{
-	struct snd_soc_component *component = dai->component;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_RESUME:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		aiu_encoder_i2s_hold(component, false);
-		return 0;
-
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		aiu_encoder_i2s_hold(component, true);
-		return 0;
-
-	default:
-		return -EINVAL;
-	}
-}
-
 static int aiu_encoder_i2s_setup_desc(struct snd_soc_component *component,
 				      struct snd_pcm_hw_params *params)
 {
@@ -353,7 +321,6 @@ static void aiu_encoder_i2s_shutdown(struct snd_pcm_substream *substream,
 }
 
 const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops = {
-	.trigger	= aiu_encoder_i2s_trigger,
 	.hw_params	= aiu_encoder_i2s_hw_params,
 	.hw_free	= aiu_encoder_i2s_hw_free,
 	.set_fmt	= aiu_encoder_i2s_set_fmt,
diff --git a/sound/soc/meson/aiu-fifo-i2s.c b/sound/soc/meson/aiu-fifo-i2s.c
index d91b0d874342f..2cbd127101d35 100644
--- a/sound/soc/meson/aiu-fifo-i2s.c
+++ b/sound/soc/meson/aiu-fifo-i2s.c
@@ -20,6 +20,8 @@
 #define AIU_MEM_I2S_CONTROL_MODE_16BIT	BIT(6)
 #define AIU_MEM_I2S_BUF_CNTL_INIT	BIT(0)
 #define AIU_RST_SOFT_I2S_FAST		BIT(0)
+#define AIU_I2S_MISC_HOLD_EN		BIT(2)
+#define AIU_I2S_MISC_FORCE_LEFT_RIGHT	BIT(4)
 
 #define AIU_FIFO_I2S_BLOCK		256
 
@@ -90,6 +92,10 @@ static int aiu_fifo_i2s_hw_params(struct snd_pcm_substream *substream,
 	unsigned int val;
 	int ret;
 
+	snd_soc_component_update_bits(component, AIU_I2S_MISC,
+				      AIU_I2S_MISC_HOLD_EN,
+				      AIU_I2S_MISC_HOLD_EN);
+
 	ret = aiu_fifo_hw_params(substream, params, dai);
 	if (ret)
 		return ret;
@@ -117,6 +123,19 @@ static int aiu_fifo_i2s_hw_params(struct snd_pcm_substream *substream,
 	snd_soc_component_update_bits(component, AIU_MEM_I2S_MASKS,
 				      AIU_MEM_I2S_MASKS_IRQ_BLOCK, val);
 
+	/*
+	 * Most (all?) supported SoCs have this bit set by default. The vendor
+	 * driver however sets it manually (depending on the version either
+	 * while un-setting AIU_I2S_MISC_HOLD_EN or right before that). Follow
+	 * the same approach for consistency with the vendor driver.
+	 */
+	snd_soc_component_update_bits(component, AIU_I2S_MISC,
+				      AIU_I2S_MISC_FORCE_LEFT_RIGHT,
+				      AIU_I2S_MISC_FORCE_LEFT_RIGHT);
+
+	snd_soc_component_update_bits(component, AIU_I2S_MISC,
+				      AIU_I2S_MISC_HOLD_EN, 0);
+
 	return 0;
 }
 
-- 
GitLab


From bc674f1b2119fcf36ca28a5f8170307be70de333 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Sun, 12 Dec 2021 21:01:49 -0800
Subject: [PATCH 2433/4878] Input: atmel_mxt_ts - fix double free in
 mxt_read_info_block
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 12f247ab590a08856441efdbd351cf2cc8f60a2d upstream.

The "id_buf" buffer is stored in "data->raw_info_block" and freed by
"mxt_free_object_table" in case of error.

Return instead of jumping to avoid a double free.

Addresses-Coverity-ID: 1474582 ("Double free")
Fixes: 068bdb67ef74 ("Input: atmel_mxt_ts - fix the firmware update")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Link: https://lore.kernel.org/r/20211212194257.68879-1-jose.exposito89@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/touchscreen/atmel_mxt_ts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index b6f75367a284a..8df402a1ed446 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -1839,7 +1839,7 @@ static int mxt_read_info_block(struct mxt_data *data)
 	if (error) {
 		dev_err(&client->dev, "Error %d parsing object table\n", error);
 		mxt_free_object_table(data);
-		goto err_free_mem;
+		return error;
 	}
 
 	data->object_table = (struct mxt_object *)(id_buf + MXT_OBJECT_START);
-- 
GitLab


From a5192f31160c1739ef6525ed77d6aafa8e6565dd Mon Sep 17 00:00:00 2001
From: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Date: Fri, 17 Dec 2021 12:44:09 -0300
Subject: [PATCH 2434/4878] ipmi: bail out if init_srcu_struct fails

commit 2b5160b12091285c5aca45980f100a9294af7b04 upstream.

In case, init_srcu_struct fails (because of memory allocation failure), we
might proceed with the driver initialization despite srcu_struct not being
entirely initialized.

Fixes: 913a89f009d9 ("ipmi: Don't initialize anything in the core until something uses it")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: Corey Minyard <cminyard@mvista.com>
Cc: stable@vger.kernel.org
Message-Id: <20211217154410.1228673-1-cascardo@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index fc6445ed7c377..cb497ba833d1b 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -5161,7 +5161,9 @@ static int ipmi_init_msghandler(void)
 	if (initialized)
 		goto out;
 
-	init_srcu_struct(&ipmi_interfaces_srcu);
+	rv = init_srcu_struct(&ipmi_interfaces_srcu);
+	if (rv)
+		goto out;
 
 	timer_setup(&ipmi_timer, ipmi_timeout, 0);
 	mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);
-- 
GitLab


From 1f6ab847461ce7dd89ae9db2dd4658c993355d7c Mon Sep 17 00:00:00 2001
From: Mian Yousaf Kaukab <ykaukab@suse.de>
Date: Wed, 8 Dec 2021 10:32:39 +0100
Subject: [PATCH 2435/4878] ipmi: ssif: initialize ssif_info->client early

commit 34f35f8f14bc406efc06ee4ff73202c6fd245d15 upstream.

During probe ssif_info->client is dereferenced in error path. However,
it is set when some of the error checking has already been done. This
causes following kernel crash if an error path is taken:

[   30.645593][  T674] ipmi_ssif 0-000e: ipmi_ssif: Not probing, Interface already present
[   30.657616][  T674] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000088
...
[   30.657723][  T674] pc : __dev_printk+0x28/0xa0
[   30.657732][  T674] lr : _dev_err+0x7c/0xa0
...
[   30.657772][  T674] Call trace:
[   30.657775][  T674]  __dev_printk+0x28/0xa0
[   30.657778][  T674]  _dev_err+0x7c/0xa0
[   30.657781][  T674]  ssif_probe+0x548/0x900 [ipmi_ssif 62ce4b08badc1458fd896206d9ef69a3c31f3d3e]
[   30.657791][  T674]  i2c_device_probe+0x37c/0x3c0
...

Initialize ssif_info->client before any error path can be taken. Clear
i2c_client data in the error path to prevent the dangling pointer from
leaking.

Fixes: c4436c9149c5 ("ipmi_ssif: avoid registering duplicate ssif interface")
Cc: stable@vger.kernel.org # 5.4.x
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Message-Id: <20211208093239.4432-1-ykaukab@suse.de>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/ipmi/ipmi_ssif.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 0416b9c9d4105..3de679723648b 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -1700,6 +1700,9 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		}
 	}
 
+	ssif_info->client = client;
+	i2c_set_clientdata(client, ssif_info);
+
 	rv = ssif_check_and_remove(client, ssif_info);
 	/* If rv is 0 and addr source is not SI_ACPI, continue probing */
 	if (!rv && ssif_info->addr_source == SI_ACPI) {
@@ -1720,9 +1723,6 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		ipmi_addr_src_to_str(ssif_info->addr_source),
 		client->addr, client->adapter->name, slave_addr);
 
-	ssif_info->client = client;
-	i2c_set_clientdata(client, ssif_info);
-
 	/* Now check for system interface capabilities */
 	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
 	msg[1] = IPMI_GET_SYSTEM_INTERFACE_CAPABILITIES_CMD;
@@ -1922,6 +1922,7 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 		dev_err(&ssif_info->client->dev,
 			"Unable to start IPMI SSIF: %d\n", rv);
+		i2c_set_clientdata(client, NULL);
 		kfree(ssif_info);
 	}
 	kfree(resp);
-- 
GitLab


From 8b745616ba8f2db389a59e5678fdbe28ad5883bf Mon Sep 17 00:00:00 2001
From: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Date: Fri, 17 Dec 2021 12:44:10 -0300
Subject: [PATCH 2436/4878] ipmi: fix initialization when workqueue allocation
 fails

commit 75d70d76cb7b927cace2cb34265d68ebb3306b13 upstream.

If the workqueue allocation fails, the driver is marked as not initialized,
and timer and panic_notifier will be left registered.

Instead of removing those when workqueue allocation fails, do the workqueue
initialization before doing it, and cleanup srcu_struct if it fails.

Fixes: 1d49eb91e86e ("ipmi: Move remove_work to dedicated workqueue")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: Corey Minyard <cminyard@mvista.com>
Cc: Ioanna Alifieraki <ioanna-maria.alifieraki@canonical.com>
Cc: stable@vger.kernel.org
Message-Id: <20211217154410.1228673-2-cascardo@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index cb497ba833d1b..8f147274f826a 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -5165,20 +5165,23 @@ static int ipmi_init_msghandler(void)
 	if (rv)
 		goto out;
 
-	timer_setup(&ipmi_timer, ipmi_timeout, 0);
-	mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);
-
-	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
-
 	remove_work_wq = create_singlethread_workqueue("ipmi-msghandler-remove-wq");
 	if (!remove_work_wq) {
 		pr_err("unable to create ipmi-msghandler-remove-wq workqueue");
 		rv = -ENOMEM;
-		goto out;
+		goto out_wq;
 	}
 
+	timer_setup(&ipmi_timer, ipmi_timeout, 0);
+	mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);
+
+	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
+
 	initialized = true;
 
+out_wq:
+	if (rv)
+		cleanup_srcu_struct(&ipmi_interfaces_srcu);
 out:
 	mutex_unlock(&ipmi_interfaces_mutex);
 	return rv;
-- 
GitLab


From 5deeb9ad598b2b3b79c8d1455a276b3d9a8bac31 Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Tue, 21 Dec 2021 13:21:22 -0500
Subject: [PATCH 2437/4878] parisc: Correct completer in lws start

commit 8f66fce0f46560b9e910787ff7ad0974441c4f9c upstream.

The completer in the "or,ev %r1,%r30,%r30" instruction is reversed, so we are
not clipping the LWS number when we are called from a 32-bit process (W=0).
We need to nulify the following depdi instruction when the least-significant
bit of %r30 is 1.

If the %r20 register is not clipped, a user process could perform a LWS call
that would branch to an undefined location in the kernel and potentially crash
the machine.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # 4.19+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/syscall.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 322503780db61..4e53515cf81f1 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -478,7 +478,7 @@ lws_start:
 	extrd,u	%r1,PSW_W_BIT,1,%r1
 	/* sp must be aligned on 4, so deposit the W bit setting into
 	 * the bottom of sp temporarily */
-	or,ev	%r1,%r30,%r30
+	or,od	%r1,%r30,%r30
 
 	/* Clip LWS number to a 32-bit value for 32-bit processes */
 	depdi	0, 31, 32, %r20
-- 
GitLab


From 0ffb9f83e4f6e6a8b68f926173a8d0646b57bedf Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Tue, 21 Dec 2021 13:33:16 -0500
Subject: [PATCH 2438/4878] parisc: Fix mask used to select futex spinlock

commit d3a5a68cff47f6eead84504c3c28376b85053242 upstream.

The address bits used to select the futex spinlock need to match those used in
the LWS code in syscall.S. The mask 0x3f8 only selects 7 bits.  It should
select 8 bits.

This change fixes the glibc nptl/tst-cond24 and nptl/tst-cond25 tests.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Fixes: 53a42b6324b8 ("parisc: Switch to more fine grained lws locks")
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/include/asm/futex.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index fceb9cf02fb3a..71aa0921d6c72 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -16,7 +16,7 @@ static inline void
 _futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
 {
 	extern u32 lws_lock_start[];
-	long index = ((long)uaddr & 0x3f8) >> 1;
+	long index = ((long)uaddr & 0x7f8) >> 1;
 	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
 	local_irq_save(*flags);
 	arch_spin_lock(s);
@@ -26,7 +26,7 @@ static inline void
 _futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
 {
 	extern u32 lws_lock_start[];
-	long index = ((long)uaddr & 0x3f8) >> 1;
+	long index = ((long)uaddr & 0x7f8) >> 1;
 	arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
 	arch_spin_unlock(s);
 	local_irq_restore(*flags);
-- 
GitLab


From c05d8f66ec3470e5212c4d08c46d6cb5738d600d Mon Sep 17 00:00:00 2001
From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Thu, 9 Dec 2021 15:59:37 +0100
Subject: [PATCH 2439/4878] tee: handle lookup of shm with reference count 0

commit dfd0743f1d9ea76931510ed150334d571fbab49d upstream.

Since the tee subsystem does not keep a strong reference to its idle
shared memory buffers, it races with other threads that try to destroy a
shared memory through a close of its dma-buf fd or by unmapping the
memory.

In tee_shm_get_from_id() when a lookup in teedev->idr has been
successful, it is possible that the tee_shm is in the dma-buf teardown
path, but that path is blocked by the teedev mutex. Since we don't have
an API to tell if the tee_shm is in the dma-buf teardown path or not we
must find another way of detecting this condition.

Fix this by doing the reference counting directly on the tee_shm using a
new refcount_t refcount field. dma-buf is replaced by using
anon_inode_getfd() instead, this separates the life-cycle of the
underlying file from the tee_shm. tee_shm_put() is updated to hold the
mutex when decreasing the refcount to 0 and then remove the tee_shm from
teedev->idr before releasing the mutex. This means that the tee_shm can
never be found unless it has a refcount larger than 0.

Fixes: 967c9cca2cc5 ("tee: generic TEE subsystem")
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Lars Persson <larper@axis.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Reported-by: Patrik Lantz <patrik.lantz@axis.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tee/tee_shm.c   | 171 ++++++++++++++++------------------------
 include/linux/tee_drv.h |   4 +-
 2 files changed, 68 insertions(+), 107 deletions(-)

diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index 8a9384a64f3e2..499fccba3d74b 100644
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2015-2016, Linaro Limited
+ * Copyright (c) 2015-2017, 2019-2021 Linaro Limited
  */
+#include <linux/anon_inodes.h>
 #include <linux/device.h>
-#include <linux/dma-buf.h>
-#include <linux/fdtable.h>
 #include <linux/idr.h>
+#include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/tee_drv.h>
@@ -28,16 +28,8 @@ static void release_registered_pages(struct tee_shm *shm)
 	}
 }
 
-static void tee_shm_release(struct tee_shm *shm)
+static void tee_shm_release(struct tee_device *teedev, struct tee_shm *shm)
 {
-	struct tee_device *teedev = shm->ctx->teedev;
-
-	if (shm->flags & TEE_SHM_DMA_BUF) {
-		mutex_lock(&teedev->mutex);
-		idr_remove(&teedev->idr, shm->id);
-		mutex_unlock(&teedev->mutex);
-	}
-
 	if (shm->flags & TEE_SHM_POOL) {
 		struct tee_shm_pool_mgr *poolm;
 
@@ -64,45 +56,6 @@ static void tee_shm_release(struct tee_shm *shm)
 	tee_device_put(teedev);
 }
 
-static struct sg_table *tee_shm_op_map_dma_buf(struct dma_buf_attachment
-			*attach, enum dma_data_direction dir)
-{
-	return NULL;
-}
-
-static void tee_shm_op_unmap_dma_buf(struct dma_buf_attachment *attach,
-				     struct sg_table *table,
-				     enum dma_data_direction dir)
-{
-}
-
-static void tee_shm_op_release(struct dma_buf *dmabuf)
-{
-	struct tee_shm *shm = dmabuf->priv;
-
-	tee_shm_release(shm);
-}
-
-static int tee_shm_op_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
-{
-	struct tee_shm *shm = dmabuf->priv;
-	size_t size = vma->vm_end - vma->vm_start;
-
-	/* Refuse sharing shared memory provided by application */
-	if (shm->flags & TEE_SHM_USER_MAPPED)
-		return -EINVAL;
-
-	return remap_pfn_range(vma, vma->vm_start, shm->paddr >> PAGE_SHIFT,
-			       size, vma->vm_page_prot);
-}
-
-static const struct dma_buf_ops tee_shm_dma_buf_ops = {
-	.map_dma_buf = tee_shm_op_map_dma_buf,
-	.unmap_dma_buf = tee_shm_op_unmap_dma_buf,
-	.release = tee_shm_op_release,
-	.mmap = tee_shm_op_mmap,
-};
-
 struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags)
 {
 	struct tee_device *teedev = ctx->teedev;
@@ -137,6 +90,7 @@ struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags)
 		goto err_dev_put;
 	}
 
+	refcount_set(&shm->refcount, 1);
 	shm->flags = flags | TEE_SHM_POOL;
 	shm->ctx = ctx;
 	if (flags & TEE_SHM_DMA_BUF)
@@ -150,10 +104,7 @@ struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags)
 		goto err_kfree;
 	}
 
-
 	if (flags & TEE_SHM_DMA_BUF) {
-		DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
-
 		mutex_lock(&teedev->mutex);
 		shm->id = idr_alloc(&teedev->idr, shm, 1, 0, GFP_KERNEL);
 		mutex_unlock(&teedev->mutex);
@@ -161,28 +112,11 @@ struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags)
 			ret = ERR_PTR(shm->id);
 			goto err_pool_free;
 		}
-
-		exp_info.ops = &tee_shm_dma_buf_ops;
-		exp_info.size = shm->size;
-		exp_info.flags = O_RDWR;
-		exp_info.priv = shm;
-
-		shm->dmabuf = dma_buf_export(&exp_info);
-		if (IS_ERR(shm->dmabuf)) {
-			ret = ERR_CAST(shm->dmabuf);
-			goto err_rem;
-		}
 	}
 
 	teedev_ctx_get(ctx);
 
 	return shm;
-err_rem:
-	if (flags & TEE_SHM_DMA_BUF) {
-		mutex_lock(&teedev->mutex);
-		idr_remove(&teedev->idr, shm->id);
-		mutex_unlock(&teedev->mutex);
-	}
 err_pool_free:
 	poolm->ops->free(poolm, shm);
 err_kfree:
@@ -243,6 +177,7 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr,
 		goto err;
 	}
 
+	refcount_set(&shm->refcount, 1);
 	shm->flags = flags | TEE_SHM_REGISTER;
 	shm->ctx = ctx;
 	shm->id = -1;
@@ -303,22 +238,6 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr,
 		goto err;
 	}
 
-	if (flags & TEE_SHM_DMA_BUF) {
-		DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
-
-		exp_info.ops = &tee_shm_dma_buf_ops;
-		exp_info.size = shm->size;
-		exp_info.flags = O_RDWR;
-		exp_info.priv = shm;
-
-		shm->dmabuf = dma_buf_export(&exp_info);
-		if (IS_ERR(shm->dmabuf)) {
-			ret = ERR_CAST(shm->dmabuf);
-			teedev->desc->ops->shm_unregister(ctx, shm);
-			goto err;
-		}
-	}
-
 	return shm;
 err:
 	if (shm) {
@@ -336,6 +255,35 @@ err:
 }
 EXPORT_SYMBOL_GPL(tee_shm_register);
 
+static int tee_shm_fop_release(struct inode *inode, struct file *filp)
+{
+	tee_shm_put(filp->private_data);
+	return 0;
+}
+
+static int tee_shm_fop_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct tee_shm *shm = filp->private_data;
+	size_t size = vma->vm_end - vma->vm_start;
+
+	/* Refuse sharing shared memory provided by application */
+	if (shm->flags & TEE_SHM_USER_MAPPED)
+		return -EINVAL;
+
+	/* check for overflowing the buffer's size */
+	if (vma->vm_pgoff + vma_pages(vma) > shm->size >> PAGE_SHIFT)
+		return -EINVAL;
+
+	return remap_pfn_range(vma, vma->vm_start, shm->paddr >> PAGE_SHIFT,
+			       size, vma->vm_page_prot);
+}
+
+static const struct file_operations tee_shm_fops = {
+	.owner = THIS_MODULE,
+	.release = tee_shm_fop_release,
+	.mmap = tee_shm_fop_mmap,
+};
+
 /**
  * tee_shm_get_fd() - Increase reference count and return file descriptor
  * @shm:	Shared memory handle
@@ -348,10 +296,11 @@ int tee_shm_get_fd(struct tee_shm *shm)
 	if (!(shm->flags & TEE_SHM_DMA_BUF))
 		return -EINVAL;
 
-	get_dma_buf(shm->dmabuf);
-	fd = dma_buf_fd(shm->dmabuf, O_CLOEXEC);
+	/* matched by tee_shm_put() in tee_shm_op_release() */
+	refcount_inc(&shm->refcount);
+	fd = anon_inode_getfd("tee_shm", &tee_shm_fops, shm, O_RDWR);
 	if (fd < 0)
-		dma_buf_put(shm->dmabuf);
+		tee_shm_put(shm);
 	return fd;
 }
 
@@ -361,17 +310,7 @@ int tee_shm_get_fd(struct tee_shm *shm)
  */
 void tee_shm_free(struct tee_shm *shm)
 {
-	/*
-	 * dma_buf_put() decreases the dmabuf reference counter and will
-	 * call tee_shm_release() when the last reference is gone.
-	 *
-	 * In the case of driver private memory we call tee_shm_release
-	 * directly instead as it doesn't have a reference counter.
-	 */
-	if (shm->flags & TEE_SHM_DMA_BUF)
-		dma_buf_put(shm->dmabuf);
-	else
-		tee_shm_release(shm);
+	tee_shm_put(shm);
 }
 EXPORT_SYMBOL_GPL(tee_shm_free);
 
@@ -478,10 +417,15 @@ struct tee_shm *tee_shm_get_from_id(struct tee_context *ctx, int id)
 	teedev = ctx->teedev;
 	mutex_lock(&teedev->mutex);
 	shm = idr_find(&teedev->idr, id);
+	/*
+	 * If the tee_shm was found in the IDR it must have a refcount
+	 * larger than 0 due to the guarantee in tee_shm_put() below. So
+	 * it's safe to use refcount_inc().
+	 */
 	if (!shm || shm->ctx != ctx)
 		shm = ERR_PTR(-EINVAL);
-	else if (shm->flags & TEE_SHM_DMA_BUF)
-		get_dma_buf(shm->dmabuf);
+	else
+		refcount_inc(&shm->refcount);
 	mutex_unlock(&teedev->mutex);
 	return shm;
 }
@@ -493,7 +437,24 @@ EXPORT_SYMBOL_GPL(tee_shm_get_from_id);
  */
 void tee_shm_put(struct tee_shm *shm)
 {
-	if (shm->flags & TEE_SHM_DMA_BUF)
-		dma_buf_put(shm->dmabuf);
+	struct tee_device *teedev = shm->ctx->teedev;
+	bool do_release = false;
+
+	mutex_lock(&teedev->mutex);
+	if (refcount_dec_and_test(&shm->refcount)) {
+		/*
+		 * refcount has reached 0, we must now remove it from the
+		 * IDR before releasing the mutex. This will guarantee that
+		 * the refcount_inc() in tee_shm_get_from_id() never starts
+		 * from 0.
+		 */
+		if (shm->flags & TEE_SHM_DMA_BUF)
+			idr_remove(&teedev->idr, shm->id);
+		do_release = true;
+	}
+	mutex_unlock(&teedev->mutex);
+
+	if (do_release)
+		tee_shm_release(teedev, shm);
 }
 EXPORT_SYMBOL_GPL(tee_shm_put);
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 459e9a76d7e6f..0c6c1de6f3b77 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -195,7 +195,7 @@ int tee_session_calc_client_uuid(uuid_t *uuid, u32 connection_method,
  * @offset:	offset of buffer in user space
  * @pages:	locked pages from userspace
  * @num_pages:	number of locked pages
- * @dmabuf:	dmabuf used to for exporting to user space
+ * @refcount:	reference counter
  * @flags:	defined by TEE_SHM_* in tee_drv.h
  * @id:		unique id of a shared memory object on this device
  *
@@ -210,7 +210,7 @@ struct tee_shm {
 	unsigned int offset;
 	struct page **pages;
 	size_t num_pages;
-	struct dma_buf *dmabuf;
+	refcount_t refcount;
 	u32 flags;
 	int id;
 };
-- 
GitLab


From b57afd124046065be7f4ca36bac610f059ad222a Mon Sep 17 00:00:00 2001
From: Andrew Cooper <andrew.cooper3@citrix.com>
Date: Thu, 16 Dec 2021 00:08:56 +0000
Subject: [PATCH 2440/4878] x86/pkey: Fix undefined behaviour with PKRU_WD_BIT

commit 57690554abe135fee81d6ac33cc94d75a7e224bb upstream.

Both __pkru_allows_write() and arch_set_user_pkey_access() shift
PKRU_WD_BIT (a signed constant) by up to 30 bits, hitting the
sign bit.

Use unsigned constants instead.

Clearly pkey 15 has not been used in combination with UBSAN yet.

Noticed by code inspection only.  I can't actually provoke the
compiler into generating incorrect logic as far as this shift is
concerned.

[
  dhansen: add stable@ tag, plus minor changelog massaging,

           For anyone doing backports, these #defines were in
	   arch/x86/include/asm/pgtable.h before 784a46618f6.
]

Fixes: 33a709b25a76 ("mm/gup, x86/mm/pkeys: Check VMAs and PTEs for protection keys")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20211216000856.4480-1-andrew.cooper3@citrix.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/pgtable.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index a02c67291cfcb..87de9f2d71cf2 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1360,8 +1360,8 @@ static inline pmd_t pmd_swp_clear_uffd_wp(pmd_t pmd)
 }
 #endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
 
-#define PKRU_AD_BIT 0x1
-#define PKRU_WD_BIT 0x2
+#define PKRU_AD_BIT 0x1u
+#define PKRU_WD_BIT 0x2u
 #define PKRU_BITS_PER_PKEY 2
 
 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
-- 
GitLab


From 7a37f2e370699e2feca3dca6c8178c71ceee7e8a Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 22 Dec 2021 11:50:23 +0100
Subject: [PATCH 2441/4878] platform/x86: intel_pmc_core: fix memleak on
 registration failure

commit 26a8b09437804fabfb1db080d676b96c0de68e7c upstream.

In case device registration fails during module initialisation, the
platform device structure needs to be freed using platform_device_put()
to properly free all resources (e.g. the device name).

Fixes: 938835aa903a ("platform/x86: intel_pmc_core: do not create a static struct device")
Cc: stable@vger.kernel.org      # 5.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20211222105023.6205-1-johan@kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/x86/intel_pmc_core_pltdrv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel_pmc_core_pltdrv.c b/drivers/platform/x86/intel_pmc_core_pltdrv.c
index 73797680b895c..15ca8afdd973d 100644
--- a/drivers/platform/x86/intel_pmc_core_pltdrv.c
+++ b/drivers/platform/x86/intel_pmc_core_pltdrv.c
@@ -65,7 +65,7 @@ static int __init pmc_core_platform_init(void)
 
 	retval = platform_device_register(pmc_core_device);
 	if (retval)
-		kfree(pmc_core_device);
+		platform_device_put(pmc_core_device);
 
 	return retval;
 }
-- 
GitLab


From 28626e76baf50e6b37d8a92564844d873aa6b51f Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 21 Dec 2021 10:37:00 -0500
Subject: [PATCH 2442/4878] KVM: VMX: Wake vCPU when delivering posted IRQ even
 if vCPU == this vCPU

commit fdba608f15e2427419997b0898750a49a735afcb upstream.

Drop a check that guards triggering a posted interrupt on the currently
running vCPU, and more importantly guards waking the target vCPU if
triggering a posted interrupt fails because the vCPU isn't IN_GUEST_MODE.
If a vIRQ is delivered from asynchronous context, the target vCPU can be
the currently running vCPU and can also be blocking, in which case
skipping kvm_vcpu_wake_up() is effectively dropping what is supposed to
be a wake event for the vCPU.

The "do nothing" logic when "vcpu == running_vcpu" mostly works only
because the majority of calls to ->deliver_posted_interrupt(), especially
when using posted interrupts, come from synchronous KVM context.  But if
a device is exposed to the guest using vfio-pci passthrough, the VFIO IRQ
and vCPU are bound to the same pCPU, and the IRQ is _not_ configured to
use posted interrupts, wake events from the device will be delivered to
KVM from IRQ context, e.g.

  vfio_msihandler()
  |
  |-> eventfd_signal()
      |
      |-> ...
          |
          |->  irqfd_wakeup()
               |
               |->kvm_arch_set_irq_inatomic()
                  |
                  |-> kvm_irq_delivery_to_apic_fast()
                      |
                      |-> kvm_apic_set_irq()

This also aligns the non-nested and nested usage of triggering posted
interrupts, and will allow for additional cleanups.

Fixes: 379a3c8ee444 ("KVM: VMX: Optimize posted-interrupt delivery for timer fastpath")
Cc: stable@vger.kernel.org
Reported-by: Longpeng (Mike) <longpeng2@huawei.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20211208015236.1616697-18-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/vmx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 5b7664d51dc2b..38c453f28f1f0 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4007,8 +4007,7 @@ static int vmx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector)
 	if (pi_test_and_set_on(&vmx->pi_desc))
 		return 0;
 
-	if (vcpu != kvm_get_running_vcpu() &&
-	    !kvm_vcpu_trigger_posted_interrupt(vcpu, false))
+	if (!kvm_vcpu_trigger_posted_interrupt(vcpu, false))
 		kvm_vcpu_kick(vcpu);
 
 	return 0;
-- 
GitLab


From f5b02912e2dd89fe2386c19edd2c6f3e1296fc2b Mon Sep 17 00:00:00 2001
From: Fabien Dessenne <fabien.dessenne@foss.st.com>
Date: Wed, 15 Dec 2021 10:58:08 +0100
Subject: [PATCH 2443/4878] pinctrl: stm32: consider the GPIO offset to expose
 all the GPIO lines

commit b67210cc217f9ca1c576909454d846970c13dfd4 upstream.

Consider the GPIO controller offset (from "gpio-ranges") to compute the
maximum GPIO line number.
This fixes an issue where gpio-ranges uses a non-null offset.
  e.g.: gpio-ranges = <&pinctrl 6 86 10>
        In that case the last valid GPIO line is not 9 but 15 (6 + 10 - 1)

Cc: stable@vger.kernel.org
Fixes: 67e2996f72c7 ("pinctrl: stm32: fix the reported number of GPIO lines per bank")
Reported-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Link: https://lore.kernel.org/r/20211215095808.621716-1-fabien.dessenne@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/stm32/pinctrl-stm32.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index a5f1f6ba74392..e13723bb2be41 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1255,10 +1255,10 @@ static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl,
 		bank_nr = args.args[1] / STM32_GPIO_PINS_PER_BANK;
 		bank->gpio_chip.base = args.args[1];
 
-		npins = args.args[2];
-		while (!of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3,
-							 ++i, &args))
-			npins += args.args[2];
+		/* get the last defined gpio line (offset + nb of pins) */
+		npins = args.args[0] + args.args[2];
+		while (!of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, ++i, &args))
+			npins = max(npins, (int)(args.args[0] + args.args[2]));
 	} else {
 		bank_nr = pctl->nbanks;
 		bank->gpio_chip.base = bank_nr * STM32_GPIO_PINS_PER_BANK;
-- 
GitLab


From 9a7ec7979785e97b33a6bbd79b95faa20e4882bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Mon, 18 Oct 2021 13:22:01 +0200
Subject: [PATCH 2444/4878] gpio: dln2: Fix interrupts when replugging the
 device
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 9a5875f14b0e3a13ae314883f1bb72b7f31fac07 upstream.

When replugging the device the following message shows up:

gpio gpiochip2: (dln2): detected irqchip that is shared with multiple gpiochips: please fix the driver.

This also has the effect that interrupts won't work.
The same problem would also show up if multiple devices where plugged in.

Fix this by allocating the irq_chip data structure per instance like other
drivers do.

I don't know when this problem appeared, but it is present in 5.10.

Cc: <stable@vger.kernel.org> # 5.10+
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-dln2.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c
index 4c5f6d0c8d745..22f11dd5210db 100644
--- a/drivers/gpio/gpio-dln2.c
+++ b/drivers/gpio/gpio-dln2.c
@@ -46,6 +46,7 @@
 struct dln2_gpio {
 	struct platform_device *pdev;
 	struct gpio_chip gpio;
+	struct irq_chip irqchip;
 
 	/*
 	 * Cache pin direction to save us one transfer, since the hardware has
@@ -383,15 +384,6 @@ static void dln2_irq_bus_unlock(struct irq_data *irqd)
 	mutex_unlock(&dln2->irq_lock);
 }
 
-static struct irq_chip dln2_gpio_irqchip = {
-	.name = "dln2-irq",
-	.irq_mask = dln2_irq_mask,
-	.irq_unmask = dln2_irq_unmask,
-	.irq_set_type = dln2_irq_set_type,
-	.irq_bus_lock = dln2_irq_bus_lock,
-	.irq_bus_sync_unlock = dln2_irq_bus_unlock,
-};
-
 static void dln2_gpio_event(struct platform_device *pdev, u16 echo,
 			    const void *data, int len)
 {
@@ -477,8 +469,15 @@ static int dln2_gpio_probe(struct platform_device *pdev)
 	dln2->gpio.direction_output = dln2_gpio_direction_output;
 	dln2->gpio.set_config = dln2_gpio_set_config;
 
+	dln2->irqchip.name = "dln2-irq",
+	dln2->irqchip.irq_mask = dln2_irq_mask,
+	dln2->irqchip.irq_unmask = dln2_irq_unmask,
+	dln2->irqchip.irq_set_type = dln2_irq_set_type,
+	dln2->irqchip.irq_bus_lock = dln2_irq_bus_lock,
+	dln2->irqchip.irq_bus_sync_unlock = dln2_irq_bus_unlock,
+
 	girq = &dln2->gpio.irq;
-	girq->chip = &dln2_gpio_irqchip;
+	girq->chip = &dln2->irqchip;
 	/* The event comes from the outside so no parent handler */
 	girq->parent_handler = NULL;
 	girq->num_parents = 0;
-- 
GitLab


From 4af79153617bd14677a69b4f4c6bb13e3ece2708 Mon Sep 17 00:00:00 2001
From: Prathamesh Shete <pshete@nvidia.com>
Date: Tue, 14 Dec 2021 17:06:53 +0530
Subject: [PATCH 2445/4878] mmc: sdhci-tegra: Fix switch to HS400ES mode

commit 4fc7261dbab139d3c64c3b618262504e16cfe7ee upstream.

When CMD13 is sent after switching to HS400ES mode, the bus
is operating at either MMC_HIGH_26_MAX_DTR or MMC_HIGH_52_MAX_DTR.
To meet Tegra SDHCI requirement at HS400ES mode, force SDHCI
interface clock to MMC_HS200_MAX_DTR (200 MHz) so that host
controller CAR clock and the interface clock are rate matched.

Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: dfc9700cef77 ("mmc: tegra: Implement HS400 enhanced strobe")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211214113653.4631-1-pshete@nvidia.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-tegra.c | 43 ++++++++++++++++++++--------------
 1 file changed, 26 insertions(+), 17 deletions(-)

diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 8ea9132ebca4e..d50b691f6c44e 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -354,23 +354,6 @@ static void tegra_sdhci_set_tap(struct sdhci_host *host, unsigned int tap)
 	}
 }
 
-static void tegra_sdhci_hs400_enhanced_strobe(struct mmc_host *mmc,
-					      struct mmc_ios *ios)
-{
-	struct sdhci_host *host = mmc_priv(mmc);
-	u32 val;
-
-	val = sdhci_readl(host, SDHCI_TEGRA_VENDOR_SYS_SW_CTRL);
-
-	if (ios->enhanced_strobe)
-		val |= SDHCI_TEGRA_SYS_SW_CTRL_ENHANCED_STROBE;
-	else
-		val &= ~SDHCI_TEGRA_SYS_SW_CTRL_ENHANCED_STROBE;
-
-	sdhci_writel(host, val, SDHCI_TEGRA_VENDOR_SYS_SW_CTRL);
-
-}
-
 static void tegra_sdhci_reset(struct sdhci_host *host, u8 mask)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -791,6 +774,32 @@ static void tegra_sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
 	}
 }
 
+static void tegra_sdhci_hs400_enhanced_strobe(struct mmc_host *mmc,
+					      struct mmc_ios *ios)
+{
+	struct sdhci_host *host = mmc_priv(mmc);
+	u32 val;
+
+	val = sdhci_readl(host, SDHCI_TEGRA_VENDOR_SYS_SW_CTRL);
+
+	if (ios->enhanced_strobe) {
+		val |= SDHCI_TEGRA_SYS_SW_CTRL_ENHANCED_STROBE;
+		/*
+		 * When CMD13 is sent from mmc_select_hs400es() after
+		 * switching to HS400ES mode, the bus is operating at
+		 * either MMC_HIGH_26_MAX_DTR or MMC_HIGH_52_MAX_DTR.
+		 * To meet Tegra SDHCI requirement at HS400ES mode, force SDHCI
+		 * interface clock to MMC_HS200_MAX_DTR (200 MHz) so that host
+		 * controller CAR clock and the interface clock are rate matched.
+		 */
+		tegra_sdhci_set_clock(host, MMC_HS200_MAX_DTR);
+	} else {
+		val &= ~SDHCI_TEGRA_SYS_SW_CTRL_ENHANCED_STROBE;
+	}
+
+	sdhci_writel(host, val, SDHCI_TEGRA_VENDOR_SYS_SW_CTRL);
+}
+
 static unsigned int tegra_sdhci_get_max_clock(struct sdhci_host *host)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-- 
GitLab


From c8e366a01c20019a631d1aa151a918d67757ab8d Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Sun, 19 Dec 2021 16:34:41 +0100
Subject: [PATCH 2446/4878] mmc: meson-mx-sdhc: Set MANUAL_STOP for multi-block
 SDIO commands

commit f89b548ca66be7500dcd92ee8e61590f7d08ac91 upstream.

The vendor driver implements special handling for multi-block
SD_IO_RW_EXTENDED (and SD_IO_RW_DIRECT) commands which have data
attached to them. It sets the MANUAL_STOP bit in the MESON_SDHC_MISC
register for these commands. In all other cases this bit is cleared.
Here we omit SD_IO_RW_DIRECT since that command never has any data
attached to it.

This fixes SDIO wifi using the brcmfmac driver which reported the
following error without this change on a Netxeon S82 board using a
Meson8 (S802) SoC:
  brcmf_fw_alloc_request: using brcm/brcmfmac43362-sdio for chip
                          BCM43362/1
  brcmf_sdiod_ramrw: membytes transfer failed
  brcmf_sdio_download_code_file: error -110 on writing 219557 membytes
                                 at 0x00000000
  brcmf_sdio_download_firmware: dongle image file download failed

And with this change:
  brcmf_fw_alloc_request: using brcm/brcmfmac43362-sdio for chip
                          BCM43362/1
  brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may
                            have limited channels available
  brcmf_c_preinit_dcmds: Firmware: BCM43362/1 wl0: Apr 22 2013 14:50:00
                         version 5.90.195.89.6 FWID 01-b30a427d

Fixes: e4bf1b0970ef96 ("mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211219153442.463863-2-martin.blumenstingl@googlemail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/meson-mx-sdhc-mmc.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/mmc/host/meson-mx-sdhc-mmc.c b/drivers/mmc/host/meson-mx-sdhc-mmc.c
index 7cd9c0ec2fcfe..8fdd0bbbfa21f 100644
--- a/drivers/mmc/host/meson-mx-sdhc-mmc.c
+++ b/drivers/mmc/host/meson-mx-sdhc-mmc.c
@@ -135,6 +135,7 @@ static void meson_mx_sdhc_start_cmd(struct mmc_host *mmc,
 				    struct mmc_command *cmd)
 {
 	struct meson_mx_sdhc_host *host = mmc_priv(mmc);
+	bool manual_stop = false;
 	u32 ictl, send;
 	int pack_len;
 
@@ -172,12 +173,27 @@ static void meson_mx_sdhc_start_cmd(struct mmc_host *mmc,
 		else
 			/* software flush: */
 			ictl |= MESON_SDHC_ICTL_DATA_XFER_OK;
+
+		/*
+		 * Mimic the logic from the vendor driver where (only)
+		 * SD_IO_RW_EXTENDED commands with more than one block set the
+		 * MESON_SDHC_MISC_MANUAL_STOP bit. This fixes the firmware
+		 * download in the brcmfmac driver for a BCM43362/1 card.
+		 * Without this sdio_memcpy_toio() (with a size of 219557
+		 * bytes) times out if MESON_SDHC_MISC_MANUAL_STOP is not set.
+		 */
+		manual_stop = cmd->data->blocks > 1 &&
+			      cmd->opcode == SD_IO_RW_EXTENDED;
 	} else {
 		pack_len = 0;
 
 		ictl |= MESON_SDHC_ICTL_RESP_OK;
 	}
 
+	regmap_update_bits(host->regmap, MESON_SDHC_MISC,
+			   MESON_SDHC_MISC_MANUAL_STOP,
+			   manual_stop ? MESON_SDHC_MISC_MANUAL_STOP : 0);
+
 	if (cmd->opcode == MMC_STOP_TRANSMISSION)
 		send |= MESON_SDHC_SEND_DATA_STOP;
 
-- 
GitLab


From 0d66b395210c5084c2b7324945062c1d1f95487a Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 3 Dec 2021 15:15:54 +0100
Subject: [PATCH 2447/4878] mmc: core: Disable card detect during shutdown

commit 66c915d09b942fb3b2b0cb2f56562180901fba17 upstream.

It's seems prone to problems by allowing card detect and its corresponding
mmc_rescan() work to run, during platform shutdown. For example, we may end
up turning off the power while initializing a card, which potentially could
damage it.

To avoid this scenario, let's add ->shutdown_pre() callback for the mmc host
class device and then turn of the card detect from there.

Reported-by: Al Cooper <alcooperx@gmail.com>
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211203141555.105351-1-ulf.hansson@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/core/core.c | 7 ++++++-
 drivers/mmc/core/core.h | 1 +
 drivers/mmc/core/host.c | 9 +++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index b5f3f160c8420..eb82f6aac951f 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2327,7 +2327,7 @@ void mmc_start_host(struct mmc_host *host)
 	_mmc_detect_change(host, 0, false);
 }
 
-void mmc_stop_host(struct mmc_host *host)
+void __mmc_stop_host(struct mmc_host *host)
 {
 	if (host->slot.cd_irq >= 0) {
 		mmc_gpio_set_cd_wake(host, false);
@@ -2336,6 +2336,11 @@ void mmc_stop_host(struct mmc_host *host)
 
 	host->rescan_disable = 1;
 	cancel_delayed_work_sync(&host->detect);
+}
+
+void mmc_stop_host(struct mmc_host *host)
+{
+	__mmc_stop_host(host);
 
 	/* clear pm flags now and let card drivers set them as needed */
 	host->pm_flags = 0;
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index db3c9c68875d8..a6c814fdbf0a9 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -69,6 +69,7 @@ static inline void mmc_delay(unsigned int ms)
 
 void mmc_rescan(struct work_struct *work);
 void mmc_start_host(struct mmc_host *host);
+void __mmc_stop_host(struct mmc_host *host);
 void mmc_stop_host(struct mmc_host *host);
 
 void _mmc_detect_change(struct mmc_host *host, unsigned long delay,
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 58112999a69ab..864c8c205ff78 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -79,9 +79,18 @@ static void mmc_host_classdev_release(struct device *dev)
 	kfree(host);
 }
 
+static int mmc_host_classdev_shutdown(struct device *dev)
+{
+	struct mmc_host *host = cls_dev_to_mmc_host(dev);
+
+	__mmc_stop_host(host);
+	return 0;
+}
+
 static struct class mmc_host_class = {
 	.name		= "mmc_host",
 	.dev_release	= mmc_host_classdev_release,
+	.shutdown_pre	= mmc_host_classdev_shutdown,
 	.pm		= MMC_HOST_CLASS_DEV_PM_OPS,
 };
 
-- 
GitLab


From c3253d3a38bc1f60caae6d06506cfc3b72b0ba11 Mon Sep 17 00:00:00 2001
From: Yann Gautier <yann.gautier@foss.st.com>
Date: Wed, 15 Dec 2021 15:17:26 +0100
Subject: [PATCH 2448/4878] mmc: mmci: stm32: clear DLYB_CR after sending
 tuning command

commit ff31ee0a0f471776f67be5e5275c18d17736fc6b upstream.

During test campaign, and especially after several unbind/bind sequences,
it has been seen that the SD-card on SDMMC1 thread could freeze.
The freeze always appear on a CMD23 following a CMD19.
Checking SDMMC internal registers shows that the tuning command (CMD19)
has failed.
The freeze is then due to the delay block involved in the tuning sequence.
To correct this, clear the delay block register DLYB_CR register after
the tuning commands.

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Fixes: 1103f807a3b9 ("mmc: mmci_sdmmc: Add execute tuning with delay block")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215141727.4901-4-yann.gautier@foss.st.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/mmci_stm32_sdmmc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c
index fdaa11f92fe6f..a75d3dd34d18c 100644
--- a/drivers/mmc/host/mmci_stm32_sdmmc.c
+++ b/drivers/mmc/host/mmci_stm32_sdmmc.c
@@ -441,6 +441,8 @@ static int sdmmc_dlyb_phase_tuning(struct mmci_host *host, u32 opcode)
 		return -EINVAL;
 	}
 
+	writel_relaxed(0, dlyb->base + DLYB_CR);
+
 	phase = end_of_len - max_len / 2;
 	sdmmc_dlyb_set_cfgr(dlyb, dlyb->unit, phase, false);
 
-- 
GitLab


From 89876d10830db6ac55ae4379764c9e9dd1268277 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@kernel.org>
Date: Wed, 15 Dec 2021 09:31:36 +0100
Subject: [PATCH 2449/4878] ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt
 exception handling

commit 8536a5ef886005bc443c2da9b842d69fd3d7647f upstream.

The Thumb2 version of the FP exception handling entry code treats the
register holding the CP number (R8) differently, resulting in the iWMMXT
CP number check to be incorrect.

Fix this by unifying the ARM and Thumb2 code paths, and switch the
order of the additions of the TI_USED_CP offset and the shifted CP
index.

Cc: <stable@vger.kernel.org>
Fixes: b86040a59feb ("Thumb-2: Implementation of the unified start-up and exceptions code")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/entry-armv.S | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 1c9e6d1452c5b..63fbcdc97ded9 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -596,11 +596,9 @@ call_fpe:
 	tstne	r0, #0x04000000			@ bit 26 set on both ARM and Thumb-2
 	reteq	lr
 	and	r8, r0, #0x00000f00		@ mask out CP number
- THUMB(	lsr	r8, r8, #8		)
 	mov	r7, #1
-	add	r6, r10, #TI_USED_CP
- ARM(	strb	r7, [r6, r8, lsr #8]	)	@ set appropriate used_cp[]
- THUMB(	strb	r7, [r6, r8]		)	@ set appropriate used_cp[]
+	add	r6, r10, r8, lsr #8		@ add used_cp[] array offset first
+	strb	r7, [r6, #TI_USED_CP]		@ set appropriate used_cp[]
 #ifdef CONFIG_IWMMXT
 	@ Test if we need to give access to iWMMXt coprocessors
 	ldr	r5, [r10, #TI_FLAGS]
@@ -609,7 +607,7 @@ call_fpe:
 	bcs	iwmmxt_task_enable
 #endif
  ARM(	add	pc, pc, r8, lsr #6	)
- THUMB(	lsl	r8, r8, #2		)
+ THUMB(	lsr	r8, r8, #6		)
  THUMB(	add	pc, r8			)
 	nop
 
-- 
GitLab


From ac61b9c6c0549aaeb98194cf429d93c41bfe5f79 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 20 Dec 2021 10:22:40 +0100
Subject: [PATCH 2450/4878] mac80211: fix locking in ieee80211_start_ap error
 path

commit 87a270625a89fc841f1a7e21aae6176543d8385c upstream.

We need to hold the local->mtx to release the channel context,
as even encoded by the lockdep_assert_held() there. Fix it.

Cc: stable@vger.kernel.org
Fixes: 295b02c4be74 ("mac80211: Add FILS discovery support")
Reported-and-tested-by: syzbot+11c342e5e30e9539cabd@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211220090836.cee3d59a1915.I36bba9b79dc2ff4d57c3c7aa30dff9a003fe8c5c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/cfg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e429dbb10df71..d46ed4cbe7717 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1217,7 +1217,10 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 
 error:
+	mutex_lock(&local->mtx);
 	ieee80211_vif_release_channel(sdata);
+	mutex_unlock(&local->mtx);
+
 	return err;
 }
 
-- 
GitLab


From 1f207076740101fed87074a6bc924dbe806f08a5 Mon Sep 17 00:00:00 2001
From: Liu Shixin <liushixin2@huawei.com>
Date: Fri, 24 Dec 2021 21:12:58 -0800
Subject: [PATCH 2451/4878] mm/hwpoison: clear MF_COUNT_INCREASED before
 retrying get_any_page()

commit 2a57d83c78f889bf3f54eede908d0643c40d5418 upstream.

Hulk Robot reported a panic in put_page_testzero() when testing
madvise() with MADV_SOFT_OFFLINE.  The BUG() is triggered when retrying
get_any_page().  This is because we keep MF_COUNT_INCREASED flag in
second try but the refcnt is not increased.

    page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0)
    ------------[ cut here ]------------
    kernel BUG at include/linux/mm.h:737!
    invalid opcode: 0000 [#1] PREEMPT SMP
    CPU: 5 PID: 2135 Comm: sshd Tainted: G    B             5.16.0-rc6-dirty #373
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
    RIP: release_pages+0x53f/0x840
    Call Trace:
      free_pages_and_swap_cache+0x64/0x80
      tlb_flush_mmu+0x6f/0x220
      unmap_page_range+0xe6c/0x12c0
      unmap_single_vma+0x90/0x170
      unmap_vmas+0xc4/0x180
      exit_mmap+0xde/0x3a0
      mmput+0xa3/0x250
      do_exit+0x564/0x1470
      do_group_exit+0x3b/0x100
      __do_sys_exit_group+0x13/0x20
      __x64_sys_exit_group+0x16/0x20
      do_syscall_64+0x34/0x80
      entry_SYSCALL_64_after_hwframe+0x44/0xae
    Modules linked in:
    ---[ end trace e99579b570fe0649 ]---
    RIP: 0010:release_pages+0x53f/0x840

Link: https://lkml.kernel.org/r/20211221074908.3910286-1-liushixin2@huawei.com
Fixes: b94e02822deb ("mm,hwpoison: try to narrow window race for free pages")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/memory-failure.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 01445ddff58d8..aef267c6a7246 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1938,6 +1938,7 @@ retry:
 	else if (ret == 0)
 		if (soft_offline_free_page(page) && try_again) {
 			try_again = false;
+			flags &= ~MF_COUNT_INCREASED;
 			goto retry;
 		}
 
-- 
GitLab


From ad338d825e3f7b96ee542bf313728af2d19fe9ad Mon Sep 17 00:00:00 2001
From: Sumit Garg <sumit.garg@linaro.org>
Date: Thu, 16 Dec 2021 11:17:25 +0530
Subject: [PATCH 2452/4878] tee: optee: Fix incorrect page free bug

commit 18549bf4b21c739a9def39f27dcac53e27286ab5 upstream.

Pointer to the allocated pages (struct page *page) has already
progressed towards the end of allocation. It is incorrect to perform
__free_pages(page, order) using this pointer as we would free any
arbitrary pages. Fix this by stop modifying the page pointer.

Fixes: ec185dd3ab25 ("optee: Fix memory leak when failing to register shm pages")
Cc: stable@vger.kernel.org
Reported-by: Patrik Lantz <patrik.lantz@axis.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tee/optee/shm_pool.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tee/optee/shm_pool.c b/drivers/tee/optee/shm_pool.c
index c41a9a501a6e9..fa75024f16f7f 100644
--- a/drivers/tee/optee/shm_pool.c
+++ b/drivers/tee/optee/shm_pool.c
@@ -41,10 +41,8 @@ static int pool_op_alloc(struct tee_shm_pool_mgr *poolm,
 			goto err;
 		}
 
-		for (i = 0; i < nr_pages; i++) {
-			pages[i] = page;
-			page++;
-		}
+		for (i = 0; i < nr_pages; i++)
+			pages[i] = page + i;
 
 		shm->flags |= TEE_SHM_REGISTER;
 		rc = optee_shm_register(shm->ctx, shm, pages, nr_pages,
-- 
GitLab


From fffb6581a23add416239dfcf7e7f3980c6b913da Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 12 Dec 2021 17:16:30 +0800
Subject: [PATCH 2453/4878] f2fs: fix to do sanity check on last xattr entry in
 __f2fs_setxattr()

commit 5598b24efaf4892741c798b425d543e4bed357a1 upstream.

As Wenqing Liu reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215235

- Overview
page fault in f2fs_setxattr() when mount and operate on corrupted image

- Reproduce
tested on kernel 5.16-rc3, 5.15.X under root

1. unzip tmp7.zip
2. ./single.sh f2fs 7

Sometimes need to run the script several times

- Kernel dump
loop0: detected capacity change from 0 to 131072
F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Mounted with checkpoint version = 7548c2ee
BUG: unable to handle page fault for address: ffffe47bc7123f48
RIP: 0010:kfree+0x66/0x320
Call Trace:
 __f2fs_setxattr+0x2aa/0xc00 [f2fs]
 f2fs_setxattr+0xfa/0x480 [f2fs]
 __f2fs_set_acl+0x19b/0x330 [f2fs]
 __vfs_removexattr+0x52/0x70
 __vfs_removexattr_locked+0xb1/0x140
 vfs_removexattr+0x56/0x100
 removexattr+0x57/0x80
 path_removexattr+0xa3/0xc0
 __x64_sys_removexattr+0x17/0x20
 do_syscall_64+0x37/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The root cause is in __f2fs_setxattr(), we missed to do sanity check on
last xattr entry, result in out-of-bound memory access during updating
inconsistent xattr data of target inode.

After the fix, it can detect such xattr inconsistency as below:

F2FS-fs (loop11): inode (7) has invalid last xattr entry, entry_size: 60676
F2FS-fs (loop11): inode (8) has corrupted xattr
F2FS-fs (loop11): inode (8) has corrupted xattr
F2FS-fs (loop11): inode (8) has invalid last xattr entry, entry_size: 47736

Cc: stable@vger.kernel.org
Reported-by: Wenqing Liu <wenqingliu0120@gmail.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/f2fs/xattr.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 65afcc3cc68a0..f44c60114379e 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -680,8 +680,17 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 	}
 
 	last = here;
-	while (!IS_XATTR_LAST_ENTRY(last))
+	while (!IS_XATTR_LAST_ENTRY(last)) {
+		if ((void *)(last) + sizeof(__u32) > last_base_addr ||
+			(void *)XATTR_NEXT_ENTRY(last) > last_base_addr) {
+			f2fs_err(F2FS_I_SB(inode), "inode (%lu) has invalid last xattr entry, entry_size: %zu",
+					inode->i_ino, ENTRY_SIZE(last));
+			set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
+			error = -EFSCORRUPTED;
+			goto exit;
+		}
 		last = XATTR_NEXT_ENTRY(last);
+	}
 
 	newsize = XATTR_ALIGN(sizeof(struct f2fs_xattr_entry) + len + size);
 
-- 
GitLab


From 6697f29bf56b6bd07ddf1218f2f8a48601a4b75f Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Mon, 29 Nov 2021 12:16:39 +0100
Subject: [PATCH 2454/4878] ceph: fix up non-directory creation in SGID
 directories

commit fd84bfdddd169c219c3a637889a8b87f70a072c2 upstream.

Ceph always inherits the SGID bit if it is set on the parent inode,
while the generic inode_init_owner does not do this in a few cases where
it can create a possible security problem (cf. [1]).

Update ceph to strip the SGID bit just as inode_init_owner would.

This bug was detected by the mapped mount testsuite in [3]. The
testsuite tests all core VFS functionality and semantics with and
without mapped mounts. That is to say it functions as a generic VFS
testsuite in addition to a mapped mount testsuite. While working on
mapped mount support for ceph, SIGD inheritance was the only failing
test for ceph after the port.

The same bug was detected by the mapped mount testsuite in XFS in
January 2021 (cf. [2]).

[1]: commit 0fa3ecd87848 ("Fix up non-directory creation in SGID directories")
[2]: commit 01ea173e103e ("xfs: fix up non-directory creation in SGID directories")
[3]: https://git.kernel.org/fs/xfs/xfstests-dev.git

Cc: stable@vger.kernel.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ceph/file.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 8e6855e7ed836..8ed881fd7440d 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -603,13 +603,25 @@ static int ceph_finish_async_create(struct inode *dir, struct dentry *dentry,
 	in.cap.realm = cpu_to_le64(ci->i_snap_realm->ino);
 	in.cap.flags = CEPH_CAP_FLAG_AUTH;
 	in.ctime = in.mtime = in.atime = iinfo.btime;
-	in.mode = cpu_to_le32((u32)mode);
 	in.truncate_seq = cpu_to_le32(1);
 	in.truncate_size = cpu_to_le64(-1ULL);
 	in.xattr_version = cpu_to_le64(1);
 	in.uid = cpu_to_le32(from_kuid(&init_user_ns, current_fsuid()));
-	in.gid = cpu_to_le32(from_kgid(&init_user_ns, dir->i_mode & S_ISGID ?
-				dir->i_gid : current_fsgid()));
+	if (dir->i_mode & S_ISGID) {
+		in.gid = cpu_to_le32(from_kgid(&init_user_ns, dir->i_gid));
+
+		/* Directories always inherit the setgid bit. */
+		if (S_ISDIR(mode))
+			mode |= S_ISGID;
+		else if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP) &&
+			 !in_group_p(dir->i_gid) &&
+			 !capable_wrt_inode_uidgid(dir, CAP_FSETID))
+			mode &= ~S_ISGID;
+	} else {
+		in.gid = cpu_to_le32(from_kgid(&init_user_ns, current_fsgid()));
+	}
+	in.mode = cpu_to_le32((u32)mode);
+
 	in.nlink = cpu_to_le32(1);
 	in.max_size = cpu_to_le64(lo->stripe_unit);
 
-- 
GitLab


From d91ed251fd7065b57d6c60964d15562fc4e73f7d Mon Sep 17 00:00:00 2001
From: Marian Postevca <posteuca@mutex.one>
Date: Sat, 4 Dec 2021 23:49:12 +0200
Subject: [PATCH 2455/4878] usb: gadget: u_ether: fix race in setting MAC
 address in setup phase

commit 890d5b40908bfd1a79be018d2d297cf9df60f4ee upstream.

When listening for notifications through netlink of a new interface being
registered, sporadically, it is possible for the MAC to be read as zero.
The zero MAC address lasts a short period of time and then switches to a
valid random MAC address.

This causes problems for netd in Android, which assumes that the interface
is malfunctioning and will not use it.

In the good case we get this log:
InterfaceController::getCfg() ifName usb0
 hwAddr 92:a8:f0:73:79:5b ipv4Addr 0.0.0.0 flags 0x1002

In the error case we get these logs:
InterfaceController::getCfg() ifName usb0
 hwAddr 00:00:00:00:00:00 ipv4Addr 0.0.0.0 flags 0x1002

netd : interfaceGetCfg("usb0")
netd : interfaceSetCfg() -> ServiceSpecificException
 (99, "[Cannot assign requested address] : ioctl() failed")

The reason for the issue is the order in which the interface is setup,
it is first registered through register_netdev() and after the MAC
address is set.

Fixed by first setting the MAC address of the net_device and after that
calling register_netdev().

Fixes: bcd4a1c40bee885e ("usb: gadget: u_ether: construct with default values and add setters/getters")
Cc: stable@vger.kernel.org
Signed-off-by: Marian Postevca <posteuca@mutex.one>
Link: https://lore.kernel.org/r/20211204214912.17627-1-posteuca@mutex.one
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/u_ether.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index a9cb647bac6fb..a40be8b448c24 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -860,19 +860,23 @@ int gether_register_netdev(struct net_device *net)
 {
 	struct eth_dev *dev;
 	struct usb_gadget *g;
-	struct sockaddr sa;
 	int status;
 
 	if (!net->dev.parent)
 		return -EINVAL;
 	dev = netdev_priv(net);
 	g = dev->gadget;
+
+	memcpy(net->dev_addr, dev->dev_mac, ETH_ALEN);
+	net->addr_assign_type = NET_ADDR_RANDOM;
+
 	status = register_netdev(net);
 	if (status < 0) {
 		dev_dbg(&g->dev, "register_netdev failed, %d\n", status);
 		return status;
 	} else {
 		INFO(dev, "HOST MAC %pM\n", dev->host_mac);
+		INFO(dev, "MAC %pM\n", dev->dev_mac);
 
 		/* two kinds of host-initiated state changes:
 		 *  - iff DATA transfer is active, carrier is "on"
@@ -880,15 +884,6 @@ int gether_register_netdev(struct net_device *net)
 		 */
 		netif_carrier_off(net);
 	}
-	sa.sa_family = net->type;
-	memcpy(sa.sa_data, dev->dev_mac, ETH_ALEN);
-	rtnl_lock();
-	status = dev_set_mac_address(net, &sa, NULL);
-	rtnl_unlock();
-	if (status)
-		pr_warn("cannot set self ethernet address: %d\n", status);
-	else
-		INFO(dev, "MAC %pM\n", dev->dev_mac);
 
 	return status;
 }
-- 
GitLab


From 8008fc1d0be1c381aa8077dfab2d980188611ae2 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 7 Dec 2021 19:30:05 +0000
Subject: [PATCH 2456/4878] KVM: VMX: Fix stale docs for
 kvm-intel.emulate_invalid_guest_state

commit 0ff29701ffad9a5d5a24344d8b09f3af7b96ffda upstream.

Update the documentation for kvm-intel's emulate_invalid_guest_state to
rectify the description of KVM's default behavior, and to document that
the behavior and thus parameter only applies to L1.

Fixes: a27685c33acc ("KVM: VMX: Emulate invalid guest state by default")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211207193006.120997-4-seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/kernel-parameters.txt | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 516499f9ccae4..ccaa72562538e 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2294,8 +2294,12 @@
 			Default is 1 (enabled)
 
 	kvm-intel.emulate_invalid_guest_state=
-			[KVM,Intel] Enable emulation of invalid guest states
-			Default is 0 (disabled)
+			[KVM,Intel] Disable emulation of invalid guest state.
+			Ignored if kvm-intel.enable_unrestricted_guest=1, as
+			guest state is never invalid for unrestricted guests.
+			This param doesn't apply to nested guests (L2), as KVM
+			never emulates invalid L2 guest state.
+			Default is 1 (enabled)
 
 	kvm-intel.flexpriority=
 			[KVM,Intel] Disable FlexPriority feature (TPR shadow).
-- 
GitLab


From ee6f34215c5dfa2257298cc362cd79e14af5a25a Mon Sep 17 00:00:00 2001
From: Andrey Ryabinin <arbn@yandex-team.com>
Date: Fri, 24 Dec 2021 21:12:35 -0800
Subject: [PATCH 2457/4878] mm: mempolicy: fix THP allocations escaping
 mempolicy restrictions

commit 338635340669d5b317c7e8dcf4fff4a0f3651d87 upstream.

alloc_pages_vma() may try to allocate THP page on the local NUMA node
first:

	page = __alloc_pages_node(hpage_node,
		gfp | __GFP_THISNODE | __GFP_NORETRY, order);

And if the allocation fails it retries allowing remote memory:

	if (!page && (gfp & __GFP_DIRECT_RECLAIM))
    		page = __alloc_pages_node(hpage_node,
					gfp, order);

However, this retry allocation completely ignores memory policy nodemask
allowing allocation to escape restrictions.

The first appearance of this bug seems to be the commit ac5b2c18911f
("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings").

The bug disappeared later in the commit 89c83fb539f9 ("mm, thp:
consolidate THP gfp handling into alloc_hugepage_direct_gfpmask") and
reappeared again in slightly different form in the commit 76e654cc91bb
("mm, page_alloc: allow hugepage fallback to remote nodes when
madvised")

Fix this by passing correct nodemask to the __alloc_pages() call.

The demonstration/reproducer of the problem:

    $ mount -oremount,size=4G,huge=always /dev/shm/
    $ echo always > /sys/kernel/mm/transparent_hugepage/defrag
    $ cat mbind_thp.c
    #include <unistd.h>
    #include <sys/mman.h>
    #include <sys/stat.h>
    #include <fcntl.h>
    #include <assert.h>
    #include <stdlib.h>
    #include <stdio.h>
    #include <numaif.h>

    #define SIZE 2ULL << 30
    int main(int argc, char **argv)
    {
        int fd;
        unsigned long long i;
        char *addr;
        pid_t pid;
        char buf[100];
        unsigned long nodemask = 1;

        fd = open("/dev/shm/test", O_RDWR|O_CREAT);
        assert(fd > 0);
        assert(ftruncate(fd, SIZE) == 0);

        addr = mmap(NULL, SIZE, PROT_READ|PROT_WRITE,
                           MAP_SHARED, fd, 0);

        assert(mbind(addr, SIZE, MPOL_BIND, &nodemask, 2, MPOL_MF_STRICT|MPOL_MF_MOVE)==0);
        for (i = 0; i < SIZE; i+=4096) {
          addr[i] = 1;
        }
        pid = getpid();
        snprintf(buf, sizeof(buf), "grep shm /proc/%d/numa_maps", pid);
        system(buf);
        sleep(10000);

        return 0;
    }
    $ gcc mbind_thp.c -o mbind_thp -lnuma
    $ numactl -H
    available: 2 nodes (0-1)
    node 0 cpus: 0 2
    node 0 size: 1918 MB
    node 0 free: 1595 MB
    node 1 cpus: 1 3
    node 1 size: 2014 MB
    node 1 free: 1731 MB
    node distances:
    node   0   1
      0:  10  20
      1:  20  10
    $ rm -f /dev/shm/test; taskset -c 0 ./mbind_thp
    7fd970a00000 bind:0 file=/dev/shm/test dirty=524288 active=0 N0=396800 N1=127488 kernelpagesize_kB=4

Link: https://lkml.kernel.org/r/20211208165343.22349-1-arbn@yandex-team.com
Fixes: ac5b2c18911f ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings")
Signed-off-by: Andrey Ryabinin <arbn@yandex-team.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/mempolicy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 3ca4898f3f249..c8b1592dff73d 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2222,8 +2222,8 @@ alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma,
 			 * memory with both reclaim and compact as well.
 			 */
 			if (!page && (gfp & __GFP_DIRECT_RECLAIM))
-				page = __alloc_pages_node(hpage_node,
-								gfp, order);
+				page = __alloc_pages_nodemask(gfp, order,
+							hpage_node, nmask);
 
 			goto out;
 		}
-- 
GitLab


From 3bb3bf50d69f7fab57c5af293c745b586945f70d Mon Sep 17 00:00:00 2001
From: Johnny Chuang <johnny.chuang.emc@gmail.com>
Date: Mon, 20 Dec 2021 00:28:45 -0800
Subject: [PATCH 2458/4878] Input: elants_i2c - do not check Remark ID on
 eKTH3900/eKTH5312

commit 4ebfee2bbc1a9c343dd50565ba5ae249fac32267 upstream.

The eKTH3900/eKTH5312 series do not support the firmware update rules of
Remark ID. Exclude these two series from checking it when updating the
firmware in touch controllers.

Signed-off-by: Johnny Chuang <johnny.chuang.emc@gmail.com>
Link: https://lore.kernel.org/r/1639619603-20616-1-git-send-email-johnny.chuang.emc@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/touchscreen/elants_i2c.c | 46 +++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
index 03a4825359448..c09aefa2661dd 100644
--- a/drivers/input/touchscreen/elants_i2c.c
+++ b/drivers/input/touchscreen/elants_i2c.c
@@ -109,6 +109,19 @@
 #define ELAN_POWERON_DELAY_USEC	500
 #define ELAN_RESET_DELAY_MSEC	20
 
+/* FW boot code version */
+#define BC_VER_H_BYTE_FOR_EKTH3900x1_I2C        0x72
+#define BC_VER_H_BYTE_FOR_EKTH3900x2_I2C        0x82
+#define BC_VER_H_BYTE_FOR_EKTH3900x3_I2C        0x92
+#define BC_VER_H_BYTE_FOR_EKTH5312x1_I2C        0x6D
+#define BC_VER_H_BYTE_FOR_EKTH5312x2_I2C        0x6E
+#define BC_VER_H_BYTE_FOR_EKTH5312cx1_I2C       0x77
+#define BC_VER_H_BYTE_FOR_EKTH5312cx2_I2C       0x78
+#define BC_VER_H_BYTE_FOR_EKTH5312x1_I2C_USB    0x67
+#define BC_VER_H_BYTE_FOR_EKTH5312x2_I2C_USB    0x68
+#define BC_VER_H_BYTE_FOR_EKTH5312cx1_I2C_USB   0x74
+#define BC_VER_H_BYTE_FOR_EKTH5312cx2_I2C_USB   0x75
+
 enum elants_state {
 	ELAN_STATE_NORMAL,
 	ELAN_WAIT_QUEUE_HEADER,
@@ -663,6 +676,37 @@ static int elants_i2c_validate_remark_id(struct elants_data *ts,
 	return 0;
 }
 
+static bool elants_i2c_should_check_remark_id(struct elants_data *ts)
+{
+	struct i2c_client *client = ts->client;
+	const u8 bootcode_version = ts->iap_version;
+	bool check;
+
+	/* I2C eKTH3900 and eKTH5312 are NOT support Remark ID */
+	if ((bootcode_version == BC_VER_H_BYTE_FOR_EKTH3900x1_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH3900x2_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH3900x3_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312x1_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312x2_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312cx1_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312cx2_I2C) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312x1_I2C_USB) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312x2_I2C_USB) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312cx1_I2C_USB) ||
+	    (bootcode_version == BC_VER_H_BYTE_FOR_EKTH5312cx2_I2C_USB)) {
+		dev_dbg(&client->dev,
+			"eKTH3900/eKTH5312(0x%02x) are not support remark id\n",
+			bootcode_version);
+		check = false;
+	} else if (bootcode_version >= 0x60) {
+		check = true;
+	} else {
+		check = false;
+	}
+
+	return check;
+}
+
 static int elants_i2c_do_update_firmware(struct i2c_client *client,
 					 const struct firmware *fw,
 					 bool force)
@@ -676,7 +720,7 @@ static int elants_i2c_do_update_firmware(struct i2c_client *client,
 	u16 send_id;
 	int page, n_fw_pages;
 	int error;
-	bool check_remark_id = ts->iap_version >= 0x60;
+	bool check_remark_id = elants_i2c_should_check_remark_id(ts);
 
 	/* Recovery mode detection! */
 	if (force) {
-- 
GitLab


From c7282790c782f5216c50b6b83b815f03c48e73ad Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 6 Dec 2021 23:29:27 -0800
Subject: [PATCH 2459/4878] Input: goodix - add id->model mapping for the
 "9111" model

commit 81e818869be522bc8fa6f7df1b92d7e76537926c upstream.

Add d->model mapping for the "9111" model, this fixes uses using
a wrong config_len of 240 bytes while the "9111" model uses
only 186 bytes of config.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211206164747.197309-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/touchscreen/goodix.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index a06385c55af2a..5fc789f717c8a 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -162,6 +162,7 @@ static const struct goodix_chip_id goodix_chip_ids[] = {
 	{ .id = "911", .data = &gt911_chip_data },
 	{ .id = "9271", .data = &gt911_chip_data },
 	{ .id = "9110", .data = &gt911_chip_data },
+	{ .id = "9111", .data = &gt911_chip_data },
 	{ .id = "927", .data = &gt911_chip_data },
 	{ .id = "928", .data = &gt911_chip_data },
 
-- 
GitLab


From 94caab5af19a295cbec1d7fa6e8b7310f058317f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Povi=C5=A1er?= <povik@protonmail.com>
Date: Mon, 6 Dec 2021 22:45:43 +0000
Subject: [PATCH 2460/4878] ASoC: tas2770: Fix setting of high sample rates
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 80d5be1a057e05f01d66e986cfd34d71845e5190 upstream.

Although the codec advertises support for 176.4 and 192 ksps, without
this fix setting those sample rates fails with EINVAL at hw_params time.

Signed-off-by: Martin Povišer <povik@protonmail.com>
Link: https://lore.kernel.org/r/20211206224529.74656-1-povik@protonmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/tas2770.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
index a91a0a31e74d1..61c3238bc2656 100644
--- a/sound/soc/codecs/tas2770.c
+++ b/sound/soc/codecs/tas2770.c
@@ -291,11 +291,11 @@ static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate)
 		ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
 				TAS2770_TDM_CFG_REG0_31_88_2_96KHZ;
 		break;
-	case 19200:
+	case 192000:
 		ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ |
 				TAS2770_TDM_CFG_REG0_31_176_4_192KHZ;
 		break;
-	case 17640:
+	case 176400:
 		ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ |
 				TAS2770_TDM_CFG_REG0_31_176_4_192KHZ;
 		break;
-- 
GitLab


From 9c75a9657bdc643e78719ecb139ebff4d5aefe53 Mon Sep 17 00:00:00 2001
From: Derek Fang <derek.fang@realtek.com>
Date: Tue, 14 Dec 2021 18:50:33 +0800
Subject: [PATCH 2461/4878] ASoC: rt5682: fix the wrong jack type detected

commit 8deb34a90f06374fd26f722c2a79e15160f66be7 upstream.

Some powers were changed during the jack insert detection
and clk's enable/disable in CCF.
If in parallel, the influence has a chance to detect
the wrong jack type, so add a lock.

Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://lore.kernel.org/r/20211214105033.471-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/rt5682.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index 41827cdf26a39..aaef76cc151fa 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -924,6 +924,8 @@ int rt5682_headset_detect(struct snd_soc_component *component, int jack_insert)
 	unsigned int val, count;
 
 	if (jack_insert) {
+		snd_soc_dapm_mutex_lock(dapm);
+
 		snd_soc_component_update_bits(component, RT5682_PWR_ANLG_1,
 			RT5682_PWR_VREF2 | RT5682_PWR_MB,
 			RT5682_PWR_VREF2 | RT5682_PWR_MB);
@@ -968,6 +970,8 @@ int rt5682_headset_detect(struct snd_soc_component *component, int jack_insert)
 		snd_soc_component_update_bits(component, RT5682_MICBIAS_2,
 			RT5682_PWR_CLK25M_MASK | RT5682_PWR_CLK1M_MASK,
 			RT5682_PWR_CLK25M_PU | RT5682_PWR_CLK1M_PU);
+
+		snd_soc_dapm_mutex_unlock(dapm);
 	} else {
 		rt5682_enable_push_button_irq(component, false);
 		snd_soc_component_update_bits(component, RT5682_CBJ_CTRL_1,
-- 
GitLab


From 441d3873664d170982922c5d2fc01fa89d9439ed Mon Sep 17 00:00:00 2001
From: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
Date: Wed, 10 Nov 2021 15:19:00 +0800
Subject: [PATCH 2462/4878] pinctrl: mediatek: fix global-out-of-bounds issue

commit 2d5446da5acecf9c67db1c9d55ae2c3e5de01f8d upstream.

When eint virtual eint number is greater than gpio number,
it maybe produce 'desc[eint_n]' size globle-out-of-bounds issue.

Signed-off-by: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20211110071900.4490-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 10002b8497fea..fbb7807e0da29 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -280,8 +280,12 @@ static int mtk_xt_get_gpio_n(void *data, unsigned long eint_n,
 	desc = (const struct mtk_pin_desc *)hw->soc->pins;
 	*gpio_chip = &hw->chip;
 
-	/* Be greedy to guess first gpio_n is equal to eint_n */
-	if (desc[eint_n].eint.eint_n == eint_n)
+	/*
+	 * Be greedy to guess first gpio_n is equal to eint_n.
+	 * Only eint virtual eint number is greater than gpio number.
+	 */
+	if (hw->soc->npins > eint_n &&
+	    desc[eint_n].eint.eint_n == eint_n)
 		*gpio_n = eint_n;
 	else
 		*gpio_n = mtk_xt_find_eint_num(hw, eint_n);
-- 
GitLab


From ec1d222d37eaf6b2d2dbdcf2c4eb7903fd74fc1e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 26 Nov 2021 22:43:39 -0800
Subject: [PATCH 2463/4878] hwmom: (lm90) Fix citical alarm status for
 MAX6680/MAX6681

commit da7dc0568491104c7acb632e9d41ddce9aaabbb1 upstream.

Tests with a real chip and a closer look into the datasheet reveals
that the local and remote critical alarm status bits are swapped for
MAX6680/MAX6681.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/lm90.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 97e0332f46790..e6355c39088e0 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -190,6 +190,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_HAVE_EXTENDED_TEMP	(1 << 8) /* extended temperature support*/
 #define LM90_PAUSE_FOR_CONFIG	(1 << 9) /* Pause conversion for config	*/
 #define LM90_HAVE_CRIT		(1 << 10)/* Chip supports CRIT/OVERT register	*/
+#define LM90_HAVE_CRIT_ALRM_SWP	(1 << 11)/* critical alarm bits swapped	*/
 
 /* LM90 status */
 #define LM90_STATUS_LTHRM	(1 << 0) /* local THERM limit tripped */
@@ -415,7 +416,8 @@ static const struct lm90_params lm90_params[] = {
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
 	[max6680] = {
-		.flags = LM90_HAVE_OFFSET | LM90_HAVE_CRIT,
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_CRIT
+		  | LM90_HAVE_CRIT_ALRM_SWP,
 		.alert_alarms = 0x7c,
 		.max_convrate = 7,
 	},
@@ -1191,6 +1193,7 @@ static const u8 lm90_temp_emerg_index[3] = {
 static const u8 lm90_min_alarm_bits[3] = { 5, 3, 11 };
 static const u8 lm90_max_alarm_bits[3] = { 6, 4, 12 };
 static const u8 lm90_crit_alarm_bits[3] = { 0, 1, 9 };
+static const u8 lm90_crit_alarm_bits_swapped[3] = { 1, 0, 9 };
 static const u8 lm90_emergency_alarm_bits[3] = { 15, 13, 14 };
 static const u8 lm90_fault_bits[3] = { 0, 2, 10 };
 
@@ -1216,7 +1219,10 @@ static int lm90_temp_read(struct device *dev, u32 attr, int channel, long *val)
 		*val = (data->alarms >> lm90_max_alarm_bits[channel]) & 1;
 		break;
 	case hwmon_temp_crit_alarm:
-		*val = (data->alarms >> lm90_crit_alarm_bits[channel]) & 1;
+		if (data->flags & LM90_HAVE_CRIT_ALRM_SWP)
+			*val = (data->alarms >> lm90_crit_alarm_bits_swapped[channel]) & 1;
+		else
+			*val = (data->alarms >> lm90_crit_alarm_bits[channel]) & 1;
 		break;
 	case hwmon_temp_emergency_alarm:
 		*val = (data->alarms >> lm90_emergency_alarm_bits[channel]) & 1;
-- 
GitLab


From 50f78486f90b91484001bfccc652d66fc308255a Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 3 Dec 2021 13:42:22 -0800
Subject: [PATCH 2464/4878] hwmon: (lm90) Do not report 'busy' status bit as
 alarm

commit cdc5287acad9ede121924a9c9313544b80d15842 upstream.

Bit 7 of the status register indicates that the chip is busy
doing a conversion. It does not indicate an alarm status.
Stop reporting it as alarm status bit.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/lm90.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index e6355c39088e0..959446b0137bc 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -200,6 +200,7 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_STATUS_RHIGH	(1 << 4) /* remote high temp limit tripped */
 #define LM90_STATUS_LLOW	(1 << 5) /* local low temp limit tripped */
 #define LM90_STATUS_LHIGH	(1 << 6) /* local high temp limit tripped */
+#define LM90_STATUS_BUSY	(1 << 7) /* conversion is ongoing */
 
 #define MAX6696_STATUS2_R2THRM	(1 << 1) /* remote2 THERM limit tripped */
 #define MAX6696_STATUS2_R2OPEN	(1 << 2) /* remote2 is an open circuit */
@@ -819,7 +820,7 @@ static int lm90_update_device(struct device *dev)
 		val = lm90_read_reg(client, LM90_REG_R_STATUS);
 		if (val < 0)
 			return val;
-		data->alarms = val;	/* lower 8 bit of alarms */
+		data->alarms = val & ~LM90_STATUS_BUSY;
 
 		if (data->kind == max6696) {
 			val = lm90_select_remote_channel(data, 1);
-- 
GitLab


From 8e34d07dd4d9f7811d8ae35adee24e78a4576844 Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Fri, 17 Dec 2021 10:29:41 +0800
Subject: [PATCH 2465/4878] ax25: NPD bug when detaching AX25 device

commit 1ade48d0c27d5da1ccf4b583d8c5fc8b534a3ac8 upstream.

The existing cleanup routine implementation is not well synchronized
with the syscall routine. When a device is detaching, below race could
occur.

static int ax25_sendmsg(...) {
  ...
  lock_sock()
  ax25 = sk_to_ax25(sk);
  if (ax25->ax25_dev == NULL) // CHECK
  ...
  ax25_queue_xmit(skb, ax25->ax25_dev->dev); // USE
  ...
}

static void ax25_kill_by_device(...) {
  ...
  if (s->ax25_dev == ax25_dev) {
    s->ax25_dev = NULL;
    ...
}

Other syscall functions like ax25_getsockopt, ax25_getname,
ax25_info_show also suffer from similar races. To fix them, this patch
introduce lock_sock() into ax25_kill_by_device in order to guarantee
that the nullify action in cleanup routine cannot proceed when another
socket request is pending.

Signed-off-by: Hanjie Wu <nagi@zju.edu.cn>
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ax25/af_ax25.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 269ee89d2c2be..22278807b3f36 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -85,8 +85,10 @@ static void ax25_kill_by_device(struct net_device *dev)
 again:
 	ax25_for_each(s, &ax25_list) {
 		if (s->ax25_dev == ax25_dev) {
-			s->ax25_dev = NULL;
 			spin_unlock_bh(&ax25_list_lock);
+			lock_sock(s->sk);
+			s->ax25_dev = NULL;
+			release_sock(s->sk);
 			ax25_disconnect(s, ENETUNREACH);
 			spin_lock_bh(&ax25_list_lock);
 
-- 
GitLab


From 450121075a6a6f1d50f97225d3396315309d61a1 Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Mon, 8 Nov 2021 18:37:21 +0800
Subject: [PATCH 2466/4878] hamradio: defer ax25 kfree after unregister_netdev

commit 3e0588c291d6ce225f2b891753ca41d45ba42469 upstream.

There is a possible race condition (use-after-free) like below

 (USE)                       |  (FREE)
ax25_sendmsg                 |
 ax25_queue_xmit             |
  dev_queue_xmit             |
   __dev_queue_xmit          |
    __dev_xmit_skb           |
     sch_direct_xmit         | ...
      xmit_one               |
       netdev_start_xmit     | tty_ldisc_kill
        __netdev_start_xmit  |  mkiss_close
         ax_xmit             |   kfree
          ax_encaps          |
                             |

Even though there are two synchronization primitives before the kfree:
1. wait_for_completion(&ax->dead). This can prevent the race with
routines from mkiss_ioctl. However, it cannot stop the routine coming
from upper layer, i.e., the ax25_sendmsg.

2. netif_stop_queue(ax->dev). It seems that this line of code aims to
halt the transmit queue but it fails to stop the routine that already
being xmit.

This patch reorder the kfree after the unregister_netdev to avoid the
possible UAF as the unregister_netdev() is well synchronized and won't
return if there is a running routine.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/hamradio/mkiss.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 920e9f888cc35..7ca0131553543 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -792,13 +792,14 @@ static void mkiss_close(struct tty_struct *tty)
 	 */
 	netif_stop_queue(ax->dev);
 
-	/* Free all AX25 frame buffers. */
-	kfree(ax->rbuff);
-	kfree(ax->xbuff);
-
 	ax->tty = NULL;
 
 	unregister_netdev(ax->dev);
+
+	/* Free all AX25 frame buffers after unreg. */
+	kfree(ax->rbuff);
+	kfree(ax->xbuff);
+
 	free_netdev(ax->dev);
 }
 
-- 
GitLab


From 7dd52af1eb5798f590d9d9e1c56ed8f5744ee0ca Mon Sep 17 00:00:00 2001
From: Lin Ma <linma@zju.edu.cn>
Date: Fri, 17 Dec 2021 10:13:56 +0800
Subject: [PATCH 2467/4878] hamradio: improve the incomplete fix to avoid NPD

commit b2f37aead1b82a770c48b5d583f35ec22aabb61e upstream.

The previous commit 3e0588c291d6 ("hamradio: defer ax25 kfree after
unregister_netdev") reorder the kfree operations and unregister_netdev
operation to prevent UAF.

This commit improves the previous one by also deferring the nullify of
the ax->tty pointer. Otherwise, a NULL pointer dereference bug occurs.
Partial of the stack trace is shown below.

BUG: kernel NULL pointer dereference, address: 0000000000000538
RIP: 0010:ax_xmit+0x1f9/0x400
...
Call Trace:
 dev_hard_start_xmit+0xec/0x320
 sch_direct_xmit+0xea/0x240
 __qdisc_run+0x166/0x5c0
 __dev_queue_xmit+0x2c7/0xaf0
 ax25_std_establish_data_link+0x59/0x60
 ax25_connect+0x3a0/0x500
 ? security_socket_connect+0x2b/0x40
 __sys_connect+0x96/0xc0
 ? __hrtimer_init+0xc0/0xc0
 ? common_nsleep+0x2e/0x50
 ? switch_fpu_return+0x139/0x1a0
 __x64_sys_connect+0x11/0x20
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

The crash point is shown as below

static void ax_encaps(...) {
  ...
  set_bit(TTY_DO_WRITE_WAKEUP, &ax->tty->flags); // ax->tty = NULL!
  ...
}

By placing the nullify action after the unregister_netdev, the ax->tty
pointer won't be assigned as NULL net_device framework layer is well
synchronized.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/hamradio/mkiss.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 7ca0131553543..63502a85a9751 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -792,14 +792,14 @@ static void mkiss_close(struct tty_struct *tty)
 	 */
 	netif_stop_queue(ax->dev);
 
-	ax->tty = NULL;
-
 	unregister_netdev(ax->dev);
 
 	/* Free all AX25 frame buffers after unreg. */
 	kfree(ax->rbuff);
 	kfree(ax->xbuff);
 
+	ax->tty = NULL;
+
 	free_netdev(ax->dev);
 }
 
-- 
GitLab


From 52ad5da8e316fa11e3a50b3f089aa63e4089bf52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= <remi@remlab.net>
Date: Sun, 19 Dec 2021 19:03:39 +0200
Subject: [PATCH 2468/4878] phonet/pep: refuse to enable an unbound pipe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 75a2f31520095600f650597c0ac41f48b5ba0068 upstream.

This ioctl() implicitly assumed that the socket was already bound to
a valid local socket name, i.e. Phonet object. If the socket was not
bound, two separate problems would occur:

1) We'd send an pipe enablement request with an invalid source object.
2) Later socket calls could BUG on the socket unexpectedly being
   connected yet not bound to a valid object.

Reported-by: syzbot+2dc91e7fc3dea88b1e8a@syzkaller.appspotmail.com
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/phonet/pep.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index a1525916885ae..72018e5e4d8ef 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -946,6 +946,8 @@ static int pep_ioctl(struct sock *sk, int cmd, unsigned long arg)
 			ret =  -EBUSY;
 		else if (sk->sk_state == TCP_ESTABLISHED)
 			ret = -EISCONN;
+		else if (!pn->pn_sk.sobject)
+			ret = -EADDRNOTAVAIL;
 		else
 			ret = pep_sock_enable(sk, NULL, 0);
 		release_sock(sk);
-- 
GitLab


From eb967e323f7fb073c51401070f7d2cb381a003f7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 29 Dec 2021 12:26:08 +0100
Subject: [PATCH 2469/4878] Linux 5.10.89

Link: https://lore.kernel.org/r/20211227151324.694661623@linuxfoundation.org
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 0b74b414f4e57..1500ea340424d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 88
+SUBLEVEL = 89
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 6709f523251f77dc1e9ea643668c630db1f7db80 Mon Sep 17 00:00:00 2001
From: Jeson Gao <jeson.gao@unisoc.com>
Date: Tue, 21 Dec 2021 16:32:42 +0800
Subject: [PATCH 2470/4878] ANDROID: thermal: Add vendor hook to check power
 range

For SoC's skin temperature, we have to use more stringent temperature
control to make IPA can monitor and mitigate temperature control earlier
and faster, so add it to meet platform thermal requirement.

Bug: 211564753

Signed-off-by: Jeson Gao <jeson.gao@unisoc.com>
Change-Id: Iaef87287eef93d6fdbc3c58c93f70c1525e38296
---
 drivers/android/vendor_hooks.c        | 1 +
 drivers/thermal/gov_power_allocator.c | 8 +++++---
 include/trace/hooks/thermal.h         | 7 +++++--
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index d4a9b0dfe846e..f34679b09a07e 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -379,3 +379,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_snd_compr_use_pause_in_drain);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_request_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_target_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_power_throttle);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_thermal_power_cap);
diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index fee3a301e9027..e9504d20b9303 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -411,6 +411,7 @@ static int allocate_power(struct thermal_zone_device *tz,
 	}
 
 	power_range = pid_controller(tz, control_temp, max_allocatable_power);
+	trace_android_vh_thermal_power_cap(&power_range);
 
 	divvy_up_power(weighted_req_power, max_power, num_actors,
 		       total_weighted_req_power, power_range, granted_power,
@@ -609,7 +610,7 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
 	int ret;
 	int switch_on_temp, control_temp;
 	struct power_allocator_params *params = tz->governor_data;
-	int enable = 1;
+	int enable = 1, override = 0;
 
 	/*
 	 * We get called for every trip point but we only need to do
@@ -618,11 +619,12 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
 	if (trip != params->trip_max_desired_temperature)
 		return 0;
 
-	trace_android_vh_enable_thermal_power_throttle(&enable);
+	trace_android_vh_enable_thermal_power_throttle(&enable, &override);
 	if (enable)
 		ret = tz->ops->get_trip_temp(tz, params->trip_switch_on,
 					     &switch_on_temp);
-	if (!enable || (!ret && (tz->temperature < switch_on_temp))) {
+	if (!enable || (!ret && (tz->temperature < switch_on_temp) &&
+			!override)) {
 		tz->passive = 0;
 		reset_pid_controller(params);
 		allow_maximum_power(tz);
diff --git a/include/trace/hooks/thermal.h b/include/trace/hooks/thermal.h
index 7f775134457ea..76b4c09b93100 100644
--- a/include/trace/hooks/thermal.h
+++ b/include/trace/hooks/thermal.h
@@ -29,9 +29,12 @@ DECLARE_HOOK(android_vh_modify_thermal_target_freq,
 	TP_ARGS(policy, target_freq));
 
 DECLARE_HOOK(android_vh_enable_thermal_power_throttle,
-	TP_PROTO(int *enable),
-	TP_ARGS(enable));
+	TP_PROTO(int *enable, int *override),
+	TP_ARGS(enable, override));
 
+DECLARE_HOOK(android_vh_thermal_power_cap,
+	TP_PROTO(u32 *power_range),
+	TP_ARGS(power_range));
 #endif /* _TRACE_HOOK_THERMAL_H */
 /* This part must be outside protection */
 #include <trace/define_trace.h>
-- 
GitLab


From bb672eff7447f8a26c8a66ddee613afd279bd760 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sun, 28 Nov 2021 23:21:41 -0800
Subject: [PATCH 2471/4878] Input: i8042 - add deferred probe support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 9222ba68c3f4065f6364b99cc641b6b019ef2d42 ]

We've got a bug report about the non-working keyboard on ASUS ZenBook
UX425UA.  It seems that the PS/2 device isn't ready immediately at
boot but takes some seconds to get ready.  Until now, the only
workaround is to defer the probe, but it's available only when the
driver is a module.  However, many distros, including openSUSE as in
the original report, build the PS/2 input drivers into kernel, hence
it won't work easily.

This patch adds the support for the deferred probe for i8042 stuff as
a workaround of the problem above.  When the deferred probe mode is
enabled and the device couldn't be probed, it'll be repeated with the
standard deferred probe mechanism.

The deferred probe mode is enabled either via the new option
i8042.probe_defer or via the quirk table entry.  As of this patch, the
quirk table contains only ASUS ZenBook UX425UA.

The deferred probe part is based on Fabio's initial work.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1190256
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Samuel Čavoj <samuel@cavoj.net>
Link: https://lore.kernel.org/r/20211117063757.11380-1-tiwai@suse.de

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../admin-guide/kernel-parameters.txt         |  2 +
 drivers/input/serio/i8042-x86ia64io.h         | 14 +++++
 drivers/input/serio/i8042.c                   | 54 ++++++++++++-------
 3 files changed, 51 insertions(+), 19 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index ccaa72562538e..d00618967854d 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1617,6 +1617,8 @@
 			architectures force reset to be always executed
 	i8042.unlock	[HW] Unlock (ignore) the keylock
 	i8042.kbdreset	[HW] Reset device connected to KBD port
+	i8042.probe_defer
+			[HW] Allow deferred probing upon i8042 probe errors
 
 	i810=		[HW,DRM]
 
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index aedd055410443..1acc7c8449294 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -995,6 +995,17 @@ static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 	{ }
 };
 
+static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = {
+	{
+		/* ASUS ZenBook UX425UA */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA"),
+		},
+	},
+	{ }
+};
+
 #endif /* CONFIG_X86 */
 
 #ifdef CONFIG_PNP
@@ -1315,6 +1326,9 @@ static int __init i8042_platform_init(void)
 	if (dmi_check_system(i8042_dmi_kbdreset_table))
 		i8042_kbdreset = true;
 
+	if (dmi_check_system(i8042_dmi_probe_defer_table))
+		i8042_probe_defer = true;
+
 	/*
 	 * A20 was already enabled during early kernel init. But some buggy
 	 * BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index abae23af0791e..a9f68f535b727 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -45,6 +45,10 @@ static bool i8042_unlock;
 module_param_named(unlock, i8042_unlock, bool, 0);
 MODULE_PARM_DESC(unlock, "Ignore keyboard lock.");
 
+static bool i8042_probe_defer;
+module_param_named(probe_defer, i8042_probe_defer, bool, 0);
+MODULE_PARM_DESC(probe_defer, "Allow deferred probing.");
+
 enum i8042_controller_reset_mode {
 	I8042_RESET_NEVER,
 	I8042_RESET_ALWAYS,
@@ -711,7 +715,7 @@ static int i8042_set_mux_mode(bool multiplex, unsigned char *mux_version)
  * LCS/Telegraphics.
  */
 
-static int __init i8042_check_mux(void)
+static int i8042_check_mux(void)
 {
 	unsigned char mux_version;
 
@@ -740,10 +744,10 @@ static int __init i8042_check_mux(void)
 /*
  * The following is used to test AUX IRQ delivery.
  */
-static struct completion i8042_aux_irq_delivered __initdata;
-static bool i8042_irq_being_tested __initdata;
+static struct completion i8042_aux_irq_delivered;
+static bool i8042_irq_being_tested;
 
-static irqreturn_t __init i8042_aux_test_irq(int irq, void *dev_id)
+static irqreturn_t i8042_aux_test_irq(int irq, void *dev_id)
 {
 	unsigned long flags;
 	unsigned char str, data;
@@ -770,7 +774,7 @@ static irqreturn_t __init i8042_aux_test_irq(int irq, void *dev_id)
  * verifies success by readinng CTR. Used when testing for presence of AUX
  * port.
  */
-static int __init i8042_toggle_aux(bool on)
+static int i8042_toggle_aux(bool on)
 {
 	unsigned char param;
 	int i;
@@ -798,7 +802,7 @@ static int __init i8042_toggle_aux(bool on)
  * the presence of an AUX interface.
  */
 
-static int __init i8042_check_aux(void)
+static int i8042_check_aux(void)
 {
 	int retval = -1;
 	bool irq_registered = false;
@@ -1005,7 +1009,7 @@ static int i8042_controller_init(void)
 
 		if (i8042_command(&ctr[n++ % 2], I8042_CMD_CTL_RCTR)) {
 			pr_err("Can't read CTR while initializing i8042\n");
-			return -EIO;
+			return i8042_probe_defer ? -EPROBE_DEFER : -EIO;
 		}
 
 	} while (n < 2 || ctr[0] != ctr[1]);
@@ -1320,7 +1324,7 @@ static void i8042_shutdown(struct platform_device *dev)
 	i8042_controller_reset(false);
 }
 
-static int __init i8042_create_kbd_port(void)
+static int i8042_create_kbd_port(void)
 {
 	struct serio *serio;
 	struct i8042_port *port = &i8042_ports[I8042_KBD_PORT_NO];
@@ -1349,7 +1353,7 @@ static int __init i8042_create_kbd_port(void)
 	return 0;
 }
 
-static int __init i8042_create_aux_port(int idx)
+static int i8042_create_aux_port(int idx)
 {
 	struct serio *serio;
 	int port_no = idx < 0 ? I8042_AUX_PORT_NO : I8042_MUX_PORT_NO + idx;
@@ -1386,13 +1390,13 @@ static int __init i8042_create_aux_port(int idx)
 	return 0;
 }
 
-static void __init i8042_free_kbd_port(void)
+static void i8042_free_kbd_port(void)
 {
 	kfree(i8042_ports[I8042_KBD_PORT_NO].serio);
 	i8042_ports[I8042_KBD_PORT_NO].serio = NULL;
 }
 
-static void __init i8042_free_aux_ports(void)
+static void i8042_free_aux_ports(void)
 {
 	int i;
 
@@ -1402,7 +1406,7 @@ static void __init i8042_free_aux_ports(void)
 	}
 }
 
-static void __init i8042_register_ports(void)
+static void i8042_register_ports(void)
 {
 	int i;
 
@@ -1443,7 +1447,7 @@ static void i8042_free_irqs(void)
 	i8042_aux_irq_registered = i8042_kbd_irq_registered = false;
 }
 
-static int __init i8042_setup_aux(void)
+static int i8042_setup_aux(void)
 {
 	int (*aux_enable)(void);
 	int error;
@@ -1485,7 +1489,7 @@ static int __init i8042_setup_aux(void)
 	return error;
 }
 
-static int __init i8042_setup_kbd(void)
+static int i8042_setup_kbd(void)
 {
 	int error;
 
@@ -1535,7 +1539,7 @@ static int i8042_kbd_bind_notifier(struct notifier_block *nb,
 	return 0;
 }
 
-static int __init i8042_probe(struct platform_device *dev)
+static int i8042_probe(struct platform_device *dev)
 {
 	int error;
 
@@ -1600,6 +1604,7 @@ static struct platform_driver i8042_driver = {
 		.pm	= &i8042_pm_ops,
 #endif
 	},
+	.probe		= i8042_probe,
 	.remove		= i8042_remove,
 	.shutdown	= i8042_shutdown,
 };
@@ -1610,7 +1615,6 @@ static struct notifier_block i8042_kbd_bind_notifier_block = {
 
 static int __init i8042_init(void)
 {
-	struct platform_device *pdev;
 	int err;
 
 	dbg_init();
@@ -1626,17 +1630,29 @@ static int __init i8042_init(void)
 	/* Set this before creating the dev to allow i8042_command to work right away */
 	i8042_present = true;
 
-	pdev = platform_create_bundle(&i8042_driver, i8042_probe, NULL, 0, NULL, 0);
-	if (IS_ERR(pdev)) {
-		err = PTR_ERR(pdev);
+	err = platform_driver_register(&i8042_driver);
+	if (err)
 		goto err_platform_exit;
+
+	i8042_platform_device = platform_device_alloc("i8042", -1);
+	if (!i8042_platform_device) {
+		err = -ENOMEM;
+		goto err_unregister_driver;
 	}
 
+	err = platform_device_add(i8042_platform_device);
+	if (err)
+		goto err_free_device;
+
 	bus_register_notifier(&serio_bus, &i8042_kbd_bind_notifier_block);
 	panic_blink = i8042_panic_blink;
 
 	return 0;
 
+err_free_device:
+	platform_device_put(i8042_platform_device);
+err_unregister_driver:
+	platform_driver_unregister(&i8042_driver);
  err_platform_exit:
 	i8042_platform_exit();
 	return err;
-- 
GitLab


From 210c7c6908f3dc77d0a09e2084573bee0783d519 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Samuel=20=C4=8Cavoj?= <samuel@cavoj.net>
Date: Sat, 4 Dec 2021 13:17:36 -0800
Subject: [PATCH 2472/4878] Input: i8042 - enable deferred probe quirk for ASUS
 UM325UA
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 44ee250aeeabb28b52a10397ac17ffb8bfe94839 ]

The ASUS UM325UA suffers from the same issue as the ASUS UX425UA, which
is a very similar laptop. The i8042 device is not usable immediately
after boot and fails to initialize, requiring a deferred retry.

Enable the deferred probe quirk for the UM325UA.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1190256
Signed-off-by: Samuel Čavoj <samuel@cavoj.net>
Link: https://lore.kernel.org/r/20211204015615.232948-1-samuel@cavoj.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/serio/i8042-x86ia64io.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 1acc7c8449294..148a7c5fd0e22 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -1003,6 +1003,13 @@ static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA"),
 		},
 	},
+	{
+		/* ASUS ZenBook UM325UA */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UA_UM325UA"),
+		},
+	},
 	{ }
 };
 
-- 
GitLab


From e2048a1f91869d0226a0bfc867ecc40fc5897107 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Tue, 14 Dec 2021 10:45:26 +0100
Subject: [PATCH 2473/4878] tomoyo: Check exceeded quota early in
 tomoyo_domain_quota_is_ok().

[ Upstream commit 04e57a2d952bbd34bc45744e72be3eecdc344294 ]

If tomoyo is used in a testing/fuzzing environment in learning mode,
for lots of domains the quota will be exceeded and stay exceeded
for prolonged periods of time. In such cases it's pointless (and slow)
to walk the whole acl list again and again just to rediscover that
the quota is exceeded. We already have the TOMOYO_DIF_QUOTA_WARNED flag
that notes the overflow condition. Check it early to avoid the slowdown.

[penguin-kernel]
This patch causes a user visible change that the learning mode will not be
automatically resumed after the quota is increased. To resume the learning
mode, administrator will need to explicitly clear TOMOYO_DIF_QUOTA_WARNED
flag after increasing the quota. But I think that this change is generally
preferable, for administrator likely wants to optimize the acl list for
that domain before increasing the quota, or that domain likely hits the
quota again. Therefore, don't try to care to clear TOMOYO_DIF_QUOTA_WARNED
flag automatically when the quota for that domain changed.

Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/tomoyo/util.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index cd458e10cf2af..ee9c2aa0c8df9 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -1046,6 +1046,8 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 		return false;
 	if (!domain)
 		return true;
+	if (READ_ONCE(domain->flags[TOMOYO_DIF_QUOTA_WARNED]))
+		return false;
 	list_for_each_entry_rcu(ptr, &domain->acl_info_list, list,
 				srcu_read_lock_held(&tomoyo_ss)) {
 		u16 perm;
@@ -1091,14 +1093,12 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 	if (count < tomoyo_profile(domain->ns, domain->profile)->
 	    pref[TOMOYO_PREF_MAX_LEARNING_ENTRY])
 		return true;
-	if (!domain->flags[TOMOYO_DIF_QUOTA_WARNED]) {
-		domain->flags[TOMOYO_DIF_QUOTA_WARNED] = true;
-		/* r->granted = false; */
-		tomoyo_write_log(r, "%s", tomoyo_dif[TOMOYO_DIF_QUOTA_WARNED]);
+	WRITE_ONCE(domain->flags[TOMOYO_DIF_QUOTA_WARNED], true);
+	/* r->granted = false; */
+	tomoyo_write_log(r, "%s", tomoyo_dif[TOMOYO_DIF_QUOTA_WARNED]);
 #ifndef CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING
-		pr_warn("WARNING: Domain '%s' has too many ACLs to hold. Stopped learning mode.\n",
-			domain->domainname->name);
+	pr_warn("WARNING: Domain '%s' has too many ACLs to hold. Stopped learning mode.\n",
+		domain->domainname->name);
 #endif
-	}
 	return false;
 }
-- 
GitLab


From 0643d9175dc68608a7bfd470808e8590e9ef2623 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Wed, 15 Dec 2021 20:13:55 +0900
Subject: [PATCH 2474/4878] tomoyo: use hwight16() in
 tomoyo_domain_quota_is_ok()

[ Upstream commit f702e1107601230eec707739038a89018ea3468d ]

hwight16() is much faster. While we are at it, no need to include
"perm =" part into data_race() macro, for perm is a local variable
that cannot be accessed by other threads.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/tomoyo/util.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index ee9c2aa0c8df9..11dd8260c9cc7 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -1051,7 +1051,6 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 	list_for_each_entry_rcu(ptr, &domain->acl_info_list, list,
 				srcu_read_lock_held(&tomoyo_ss)) {
 		u16 perm;
-		u8 i;
 
 		if (ptr->is_deleted)
 			continue;
@@ -1062,23 +1061,23 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 		 */
 		switch (ptr->type) {
 		case TOMOYO_TYPE_PATH_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_path_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_path_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_PATH2_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_path2_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_path2_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_PATH_NUMBER_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_path_number_acl, head)
+			perm = data_race(container_of(ptr, struct tomoyo_path_number_acl, head)
 				  ->perm);
 			break;
 		case TOMOYO_TYPE_MKDEV_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_mkdev_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_mkdev_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_INET_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_inet_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_inet_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_UNIX_ACL:
-			data_race(perm = container_of(ptr, struct tomoyo_unix_acl, head)->perm);
+			perm = data_race(container_of(ptr, struct tomoyo_unix_acl, head)->perm);
 			break;
 		case TOMOYO_TYPE_MANUAL_TASK_ACL:
 			perm = 0;
@@ -1086,9 +1085,7 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r)
 		default:
 			perm = 1;
 		}
-		for (i = 0; i < 16; i++)
-			if (perm & (1 << i))
-				count++;
+		count += hweight16(perm);
 	}
 	if (count < tomoyo_profile(domain->ns, domain->profile)->
 	    pref[TOMOYO_PREF_MAX_LEARNING_ENTRY])
-- 
GitLab


From d01e9ce1af6116f812491d3d3873d204f10ae0b8 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 8 Dec 2021 11:06:52 +0100
Subject: [PATCH 2475/4878] parisc: Clear stale IIR value on instruction access
 rights trap

[ Upstream commit 484730e5862f6b872dca13840bed40fd7c60fa26 ]

When a trap 7 (Instruction access rights) occurs, this means the CPU
couldn't execute an instruction due to missing execute permissions on
the memory region.  In this case it seems the CPU didn't even fetched
the instruction from memory and thus did not store it in the cr19 (IIR)
register before calling the trap handler. So, the trap handler will find
some random old stale value in cr19.

This patch simply overwrites the stale IIR value with a constant magic
"bad food" value (0xbaadf00d), in the hope people don't start to try to
understand the various random IIR values in trap 7 dumps.

Noticed-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/kernel/traps.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index a52c7abf2ca49..43f56335759a4 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -729,6 +729,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 			}
 			mmap_read_unlock(current->mm);
 		}
+		/* CPU could not fetch instruction, so clear stale IIR value. */
+		regs->iir = 0xbaadf00d;
 		fallthrough;
 	case 27: 
 		/* Data memory protection ID trap */
-- 
GitLab


From 7da855e93964893d48df8ad60fc30a8ac8327506 Mon Sep 17 00:00:00 2001
From: Wang Qing <wangqing@vivo.com>
Date: Tue, 14 Dec 2021 04:18:36 -0800
Subject: [PATCH 2476/4878] platform/x86: apple-gmux: use resource_size() with
 res

[ Upstream commit eb66fb03a727cde0ab9b1a3858de55c26f3007da ]

This should be (res->end - res->start + 1) here actually,
use resource_size() derectly.

Signed-off-by: Wang Qing <wangqing@vivo.com>
Link: https://lore.kernel.org/r/1639484316-75873-1-git-send-email-wangqing@vivo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/apple-gmux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 9aae45a452002..57553f9b4d1dc 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -625,7 +625,7 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 	}
 
 	gmux_data->iostart = res->start;
-	gmux_data->iolen = res->end - res->start;
+	gmux_data->iolen = resource_size(res);
 
 	if (gmux_data->iolen < GMUX_MIN_IO_LEN) {
 		pr_err("gmux I/O region too small (%lu < %u)\n",
-- 
GitLab


From a0e82d5ef992eed30d49f7855eed89773a620ddd Mon Sep 17 00:00:00 2001
From: Jackie Liu <liuyun01@kylinos.cn>
Date: Fri, 17 Dec 2021 10:07:54 +0800
Subject: [PATCH 2477/4878] memblock: fix memblock_phys_alloc() section
 mismatch error

[ Upstream commit d7f55471db2719629f773c2d6b5742a69595bfd3 ]

Fix modpost Section mismatch error in memblock_phys_alloc()

[...]
WARNING: modpost: vmlinux.o(.text.unlikely+0x1dcc): Section mismatch in reference
from the function memblock_phys_alloc() to the function .init.text:memblock_phys_alloc_range()
The function memblock_phys_alloc() references
the function __init memblock_phys_alloc_range().
This is often because memblock_phys_alloc lacks a __init
annotation or the annotation of memblock_phys_alloc_range is wrong.

ERROR: modpost: Section mismatches detected.
Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
[...]

memblock_phys_alloc() is a one-line wrapper, make it __always_inline to
avoid these section mismatches.

Reported-by: k2ci <kernel-bot@kylinos.cn>
Suggested-by: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
[rppt: slightly massaged changelog ]
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20211217020754.2874872-1-liu.yun@linux.dev
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/memblock.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 1a8d25f2e0412..3baea2ef33fbb 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -387,8 +387,8 @@ phys_addr_t memblock_alloc_range_nid(phys_addr_t size,
 				      phys_addr_t end, int nid, bool exact_nid);
 phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
 
-static inline phys_addr_t memblock_phys_alloc(phys_addr_t size,
-					      phys_addr_t align)
+static __always_inline phys_addr_t memblock_phys_alloc(phys_addr_t size,
+						       phys_addr_t align)
 {
 	return memblock_phys_alloc_range(size, align, 0,
 					 MEMBLOCK_ALLOC_ACCESSIBLE);
-- 
GitLab


From ec941a2277a1db086a55daac96bd1ae77e41b34c Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Thu, 23 Dec 2021 17:43:14 +0100
Subject: [PATCH 2478/4878] recordmcount.pl: fix typo in s390 mcount regex

commit 4eb1782eaa9fa1c224ad1fa0d13a9f09c3ab2d80 upstream.

Commit 85bf17b28f97 ("recordmcount.pl: look for jgnop instruction as well
as bcrl on s390") added a new alternative mnemonic for the existing brcl
instruction. This is required for the combination old gcc version (pre 9.0)
and binutils since version 2.37.
However at the same time this commit introduced a typo, replacing brcl with
bcrl. As a result no mcount locations are detected anymore with old gcc
versions (pre 9.0) and binutils before version 2.37.
Fix this by using the correct mnemonic again.

Reported-by: Miroslav Benes <mbenes@suse.cz>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: <stable@vger.kernel.org>
Fixes: 85bf17b28f97 ("recordmcount.pl: look for jgnop instruction as well as bcrl on s390")
Link: https://lore.kernel.org/r/alpine.LSU.2.21.2112230949520.19849@pobox.suse.cz
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/recordmcount.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index a4ca050815aba..dc1d3696af6b8 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -252,7 +252,7 @@ if ($arch eq "x86_64") {
 
 } elsif ($arch eq "s390" && $bits == 64) {
     if ($cc =~ /-DCC_USING_HOTPATCH/) {
-	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*c0 04 00 00 00 00\\s*(bcrl\\s*0,|jgnop\\s*)[0-9a-f]+ <([^\+]*)>\$";
+	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*c0 04 00 00 00 00\\s*(brcl\\s*0,|jgnop\\s*)[0-9a-f]+ <([^\+]*)>\$";
 	$mcount_adjust = 0;
     } else {
 	$mcount_regex = "^\\s*([0-9a-fA-F]+):\\s*R_390_(PC|PLT)32DBL\\s+_mcount\\+0x2\$";
-- 
GitLab


From 4833ad4908a1dff196946b4fd96cb5fe74a8621f Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Fri, 24 Dec 2021 07:07:39 -0800
Subject: [PATCH 2479/4878] selinux: initialize proto variable in
 selinux_ip_postroute_compat()

commit 732bc2ff080c447f8524f40c970c481f5da6eed3 upstream.

Clang static analysis reports this warning

hooks.c:5765:6: warning: 4th function call argument is an uninitialized
                value
        if (selinux_xfrm_postroute_last(sksec->sid, skb, &ad, proto))
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

selinux_parse_skb() can return ok without setting proto.  The later call
to selinux_xfrm_postroute_last() does an early check of proto and can
return ok if the garbage proto value matches.  So initialize proto.

Cc: stable@vger.kernel.org
Fixes: eef9b41622f2 ("selinux: cleanup selinux_xfrm_sock_rcv_skb() and selinux_xfrm_postroute_last()")
Signed-off-by: Tom Rix <trix@redhat.com>
[PM: typo/spelling and checkpatch.pl description fixes]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/selinux/hooks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index f32026bc96b42..ff2191ae53528 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5665,7 +5665,7 @@ static unsigned int selinux_ip_postroute_compat(struct sk_buff *skb,
 	struct common_audit_data ad;
 	struct lsm_network_audit net = {0,};
 	char *addrp;
-	u8 proto;
+	u8 proto = 0;
 
 	if (sk == NULL)
 		return NF_ACCEPT;
-- 
GitLab


From fcb32eb3d04d4a84fbb2c374ab2ffd4d684d674e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 14 Dec 2021 10:05:27 +0300
Subject: [PATCH 2480/4878] scsi: lpfc: Terminate string in
 lpfc_debugfs_nvmeio_trc_write()

[ Upstream commit 9020be114a47bf7ff33e179b3bb0016b91a098e6 ]

The "mybuf" string comes from the user, so we need to ensure that it is NUL
terminated.

Link: https://lore.kernel.org/r/20211214070527.GA27934@kili
Fixes: bd2cdd5e400f ("scsi: lpfc: NVME Initiator: Add debugfs support")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc_debugfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index b89c5513243e8..beaf3a8d206f8 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -2956,8 +2956,8 @@ lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
 	char mybuf[64];
 	char *pbuf;
 
-	if (nbytes > 64)
-		nbytes = 64;
+	if (nbytes > 63)
+		nbytes = 63;
 
 	memset(mybuf, 0, sizeof(mybuf));
 
-- 
GitLab


From 4cd1da02f0c39606e3378c9255f17d6f85d106c7 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Wed, 22 Dec 2021 06:54:53 +0000
Subject: [PATCH 2481/4878] net/mlx5: DR, Fix NULL vs IS_ERR checking in
 dr_domain_init_resources

[ Upstream commit 6b8b42585886c59a008015083282aae434349094 ]

The mlx5_get_uars_page() function  returns error pointers.
Using IS_ERR() to check the return value to fix this.

Fixes: 4ec9e7b02697 ("net/mlx5: DR, Expose steering domain functionality")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
index 00d861361428f..16a7c7ec5e138 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
@@ -2,6 +2,7 @@
 /* Copyright (c) 2019 Mellanox Technologies. */
 
 #include <linux/mlx5/eswitch.h>
+#include <linux/err.h>
 #include "dr_types.h"
 
 #define DR_DOMAIN_SW_STEERING_SUPPORTED(dmn, dmn_type)	\
@@ -69,9 +70,9 @@ static int dr_domain_init_resources(struct mlx5dr_domain *dmn)
 	}
 
 	dmn->uar = mlx5_get_uars_page(dmn->mdev);
-	if (!dmn->uar) {
+	if (IS_ERR(dmn->uar)) {
 		mlx5dr_err(dmn, "Couldn't allocate UAR\n");
-		ret = -ENOMEM;
+		ret = PTR_ERR(dmn->uar);
 		goto clean_pd;
 	}
 
-- 
GitLab


From 73665165b64a8f3c5b3534009a69be55bb744f05 Mon Sep 17 00:00:00 2001
From: Amir Tzin <amirtz@nvidia.com>
Date: Tue, 30 Nov 2021 16:05:44 +0200
Subject: [PATCH 2482/4878] net/mlx5e: Wrap the tx reporter dump callback to
 extract the sq

[ Upstream commit 918fc3855a6507a200e9cf22c20be852c0982687 ]

Function mlx5e_tx_reporter_dump_sq() casts its void * argument to struct
mlx5e_txqsq *, but in TX-timeout-recovery flow the argument is actually
of type struct mlx5e_tx_timeout_ctx *.

 mlx5_core 0000:08:00.1 enp8s0f1: TX timeout detected
 mlx5_core 0000:08:00.1 enp8s0f1: TX timeout on queue: 1, SQ: 0x11ec, CQ: 0x146d, SQ Cons: 0x0 SQ Prod: 0x1, usecs since last trans: 21565000
 BUG: stack guard page was hit at 0000000093f1a2de (stack is 00000000b66ea0dc..000000004d932dae)
 kernel stack overflow (page fault): 0000 [#1] SMP NOPTI
 CPU: 5 PID: 95 Comm: kworker/u20:1 Tainted: G W OE 5.13.0_mlnx #1
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 Workqueue: mlx5e mlx5e_tx_timeout_work [mlx5_core]
 RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180
 [mlx5_core]
 Call Trace:
 mlx5e_tx_reporter_dump+0x43/0x1c0 [mlx5_core]
 devlink_health_do_dump.part.91+0x71/0xd0
 devlink_health_report+0x157/0x1b0
 mlx5e_reporter_tx_timeout+0xb9/0xf0 [mlx5_core]
 ? mlx5e_tx_reporter_err_cqe_recover+0x1d0/0x1d0
 [mlx5_core]
 ? mlx5e_health_queue_dump+0xd0/0xd0 [mlx5_core]
 ? update_load_avg+0x19b/0x550
 ? set_next_entity+0x72/0x80
 ? pick_next_task_fair+0x227/0x340
 ? finish_task_switch+0xa2/0x280
   mlx5e_tx_timeout_work+0x83/0xb0 [mlx5_core]
   process_one_work+0x1de/0x3a0
   worker_thread+0x2d/0x3c0
 ? process_one_work+0x3a0/0x3a0
   kthread+0x115/0x130
 ? kthread_park+0x90/0x90
   ret_from_fork+0x1f/0x30
 --[ end trace 51ccabea504edaff ]---
 RIP: 0010:mlx5e_tx_reporter_dump_sq+0xd3/0x180
 PKRU: 55555554
 Kernel panic - not syncing: Fatal exception
 Kernel Offset: disabled
 end Kernel panic - not syncing: Fatal exception

To fix this bug add a wrapper for mlx5e_tx_reporter_dump_sq() which
extracts the sq from struct mlx5e_tx_timeout_ctx and set it as the
TX-timeout-recovery flow dump callback.

Fixes: 5f29458b77d5 ("net/mlx5e: Support dump callback in TX reporter")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Amir Tzin <amirtz@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlx5/core/en/reporter_tx.c   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index 8be6eaa3eeb14..13dd34c571b9f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -335,6 +335,14 @@ static int mlx5e_tx_reporter_dump_sq(struct mlx5e_priv *priv, struct devlink_fms
 	return mlx5e_health_fmsg_named_obj_nest_end(fmsg);
 }
 
+static int mlx5e_tx_reporter_timeout_dump(struct mlx5e_priv *priv, struct devlink_fmsg *fmsg,
+					  void *ctx)
+{
+	struct mlx5e_tx_timeout_ctx *to_ctx = ctx;
+
+	return mlx5e_tx_reporter_dump_sq(priv, fmsg, to_ctx->sq);
+}
+
 static int mlx5e_tx_reporter_dump_all_sqs(struct mlx5e_priv *priv,
 					  struct devlink_fmsg *fmsg)
 {
@@ -418,7 +426,7 @@ int mlx5e_reporter_tx_timeout(struct mlx5e_txqsq *sq)
 	to_ctx.sq = sq;
 	err_ctx.ctx = &to_ctx;
 	err_ctx.recover = mlx5e_tx_reporter_timeout_recover;
-	err_ctx.dump = mlx5e_tx_reporter_dump_sq;
+	err_ctx.dump = mlx5e_tx_reporter_timeout_dump;
 	snprintf(err_str, sizeof(err_str),
 		 "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u",
 		 sq->channel->ix, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
-- 
GitLab


From 5e6ad649e9273cb29ee3159f49530ca2e6ff2324 Mon Sep 17 00:00:00 2001
From: Maxim Mikityanskiy <maximmi@mellanox.com>
Date: Wed, 22 Jul 2020 16:32:44 +0300
Subject: [PATCH 2483/4878] net/mlx5e: Fix ICOSQ recovery flow for XSK

[ Upstream commit 19c4aba2d4e23997061fb11aed8a3e41334bfa14 ]

There are two ICOSQs per channel: one is needed for RX, and the other
for async operations (XSK TX, kTLS offload). Currently, the recovery
flow for both is the same, and async ICOSQ is mistakenly treated like
the regular ICOSQ.

This patch prevents running the regular ICOSQ recovery on async ICOSQ.
The purpose of async ICOSQ is to handle XSK wakeup requests and post
kTLS offload RX parameters, it has nothing to do with RQ and XSKRQ UMRs,
so the regular recovery sequence is not applicable here.

Fixes: be5323c8379f ("net/mlx5e: Report and recover from CQE error on ICOSQ")
Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h  |  3 --
 .../net/ethernet/mellanox/mlx5/core/en_main.c | 30 ++++++++++++++-----
 2 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 9da34f82d4668..73060b30fece3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -916,9 +916,6 @@ void mlx5e_deactivate_rq(struct mlx5e_rq *rq);
 void mlx5e_close_rq(struct mlx5e_rq *rq);
 
 struct mlx5e_sq_param;
-int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
-		     struct mlx5e_sq_param *param, struct mlx5e_icosq *sq);
-void mlx5e_close_icosq(struct mlx5e_icosq *sq);
 int mlx5e_open_xdpsq(struct mlx5e_channel *c, struct mlx5e_params *params,
 		     struct mlx5e_sq_param *param, struct xsk_buff_pool *xsk_pool,
 		     struct mlx5e_xdpsq *sq, bool is_redirect);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 6ec4b96497ffb..3f5a2bb9b3c0b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1051,9 +1051,20 @@ static void mlx5e_icosq_err_cqe_work(struct work_struct *recover_work)
 	mlx5e_reporter_icosq_cqe_err(sq);
 }
 
+static void mlx5e_async_icosq_err_cqe_work(struct work_struct *recover_work)
+{
+	struct mlx5e_icosq *sq = container_of(recover_work, struct mlx5e_icosq,
+					      recover_work);
+
+	/* Not implemented yet. */
+
+	netdev_warn(sq->channel->netdev, "async_icosq recovery is not implemented\n");
+}
+
 static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
 			     struct mlx5e_sq_param *param,
-			     struct mlx5e_icosq *sq)
+			     struct mlx5e_icosq *sq,
+			     work_func_t recover_work_func)
 {
 	void *sqc_wq               = MLX5_ADDR_OF(sqc, param->sqc, wq);
 	struct mlx5_core_dev *mdev = c->mdev;
@@ -1073,7 +1084,7 @@ static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
 	if (err)
 		goto err_sq_wq_destroy;
 
-	INIT_WORK(&sq->recover_work, mlx5e_icosq_err_cqe_work);
+	INIT_WORK(&sq->recover_work, recover_work_func);
 
 	return 0;
 
@@ -1423,13 +1434,14 @@ static void mlx5e_tx_err_cqe_work(struct work_struct *recover_work)
 	mlx5e_reporter_tx_err_cqe(sq);
 }
 
-int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
-		     struct mlx5e_sq_param *param, struct mlx5e_icosq *sq)
+static int mlx5e_open_icosq(struct mlx5e_channel *c, struct mlx5e_params *params,
+			    struct mlx5e_sq_param *param, struct mlx5e_icosq *sq,
+			    work_func_t recover_work_func)
 {
 	struct mlx5e_create_sq_param csp = {};
 	int err;
 
-	err = mlx5e_alloc_icosq(c, param, sq);
+	err = mlx5e_alloc_icosq(c, param, sq, recover_work_func);
 	if (err)
 		return err;
 
@@ -1459,7 +1471,7 @@ void mlx5e_deactivate_icosq(struct mlx5e_icosq *icosq)
 	synchronize_net(); /* Sync with NAPI. */
 }
 
-void mlx5e_close_icosq(struct mlx5e_icosq *sq)
+static void mlx5e_close_icosq(struct mlx5e_icosq *sq)
 {
 	struct mlx5e_channel *c = sq->channel;
 
@@ -1862,11 +1874,13 @@ static int mlx5e_open_queues(struct mlx5e_channel *c,
 
 	spin_lock_init(&c->async_icosq_lock);
 
-	err = mlx5e_open_icosq(c, params, &cparam->async_icosq, &c->async_icosq);
+	err = mlx5e_open_icosq(c, params, &cparam->async_icosq, &c->async_icosq,
+			       mlx5e_async_icosq_err_cqe_work);
 	if (err)
 		goto err_disable_napi;
 
-	err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
+	err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq,
+			       mlx5e_icosq_err_cqe_work);
 	if (err)
 		goto err_close_async_icosq;
 
-- 
GitLab


From abe74fb43378ce4f2d41b9fbe58cbabe5d12b204 Mon Sep 17 00:00:00 2001
From: Coco Li <lixiaoyan@google.com>
Date: Thu, 23 Dec 2021 22:24:40 +0000
Subject: [PATCH 2484/4878] udp: using datalen to cap ipv6 udp max gso segments

[ Upstream commit 736ef37fd9a44f5966e25319d08ff7ea99ac79e8 ]

The max number of UDP gso segments is intended to cap to
UDP_MAX_SEGMENTS, this is checked in udp_send_skb().

skb->len contains network and transport header len here, we should use
only data len instead.

This is the ipv6 counterpart to the below referenced commit,
which missed the ipv6 change

Fixes: 158390e45612 ("udp: using datalen to cap max gso segments")
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211223222441.2975883-1-lixiaoyan@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8a1863146f34c..069551a04369e 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1189,7 +1189,7 @@ static int udp_v6_send_skb(struct sk_buff *skb, struct flowi6 *fl6,
 			kfree_skb(skb);
 			return -EINVAL;
 		}
-		if (skb->len > cork->gso_size * UDP_MAX_SEGMENTS) {
+		if (datalen > cork->gso_size * UDP_MAX_SEGMENTS) {
 			kfree_skb(skb);
 			return -EINVAL;
 		}
-- 
GitLab


From 13c1bf43b6744fcf28387cdec6f5b5c24a32f20a Mon Sep 17 00:00:00 2001
From: Coco Li <lixiaoyan@google.com>
Date: Thu, 23 Dec 2021 22:24:41 +0000
Subject: [PATCH 2485/4878] selftests: Calculate udpgso segment count without
 header adjustment

[ Upstream commit 5471d5226c3b39b3d2f7011c082d5715795bd65c ]

The below referenced commit correctly updated the computation of number
of segments (gso_size) by using only the gso payload size and
removing the header lengths.

With this change the regression test started failing. Update
the tests to match this new behavior.

Both IPv4 and IPv6 tests are updated, as a separate patch in this series
will update udp_v6_send_skb to match this change in udp_send_skb.

Fixes: 158390e45612 ("udp: using datalen to cap max gso segments")
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211223222441.2975883-2-lixiaoyan@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgso.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/net/udpgso.c b/tools/testing/selftests/net/udpgso.c
index c66da6ffd6d8d..7badaf215de28 100644
--- a/tools/testing/selftests/net/udpgso.c
+++ b/tools/testing/selftests/net/udpgso.c
@@ -156,13 +156,13 @@ struct testcase testcases_v4[] = {
 	},
 	{
 		/* send max number of min sized segments */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V4,
+		.tlen = UDP_MAX_SEGMENTS,
 		.gso_len = 1,
-		.r_num_mss = UDP_MAX_SEGMENTS - CONST_HDRLEN_V4,
+		.r_num_mss = UDP_MAX_SEGMENTS,
 	},
 	{
 		/* send max number + 1 of min sized segments: fail */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V4 + 1,
+		.tlen = UDP_MAX_SEGMENTS + 1,
 		.gso_len = 1,
 		.tfail = true,
 	},
@@ -259,13 +259,13 @@ struct testcase testcases_v6[] = {
 	},
 	{
 		/* send max number of min sized segments */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V6,
+		.tlen = UDP_MAX_SEGMENTS,
 		.gso_len = 1,
-		.r_num_mss = UDP_MAX_SEGMENTS - CONST_HDRLEN_V6,
+		.r_num_mss = UDP_MAX_SEGMENTS,
 	},
 	{
 		/* send max number + 1 of min sized segments: fail */
-		.tlen = UDP_MAX_SEGMENTS - CONST_HDRLEN_V6 + 1,
+		.tlen = UDP_MAX_SEGMENTS + 1,
 		.gso_len = 1,
 		.tfail = true,
 	},
-- 
GitLab


From 769d14abd35e0e153b5149c3e1e989a9d719e3ff Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Thu, 23 Dec 2021 13:04:30 -0500
Subject: [PATCH 2486/4878] sctp: use call_rcu to free endpoint

[ Upstream commit 5ec7d18d1813a5bead0b495045606c93873aecbb ]

This patch is to delay the endpoint free by calling call_rcu() to fix
another use-after-free issue in sctp_sock_dump():

  BUG: KASAN: use-after-free in __lock_acquire+0x36d9/0x4c20
  Call Trace:
    __lock_acquire+0x36d9/0x4c20 kernel/locking/lockdep.c:3218
    lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844
    __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
    _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
    spin_lock_bh include/linux/spinlock.h:334 [inline]
    __lock_sock+0x203/0x350 net/core/sock.c:2253
    lock_sock_nested+0xfe/0x120 net/core/sock.c:2774
    lock_sock include/net/sock.h:1492 [inline]
    sctp_sock_dump+0x122/0xb20 net/sctp/diag.c:324
    sctp_for_each_transport+0x2b5/0x370 net/sctp/socket.c:5091
    sctp_diag_dump+0x3ac/0x660 net/sctp/diag.c:527
    __inet_diag_dump+0xa8/0x140 net/ipv4/inet_diag.c:1049
    inet_diag_dump+0x9b/0x110 net/ipv4/inet_diag.c:1065
    netlink_dump+0x606/0x1080 net/netlink/af_netlink.c:2244
    __netlink_dump_start+0x59a/0x7c0 net/netlink/af_netlink.c:2352
    netlink_dump_start include/linux/netlink.h:216 [inline]
    inet_diag_handler_cmd+0x2ce/0x3f0 net/ipv4/inet_diag.c:1170
    __sock_diag_cmd net/core/sock_diag.c:232 [inline]
    sock_diag_rcv_msg+0x31d/0x410 net/core/sock_diag.c:263
    netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477
    sock_diag_rcv+0x2a/0x40 net/core/sock_diag.c:274

This issue occurs when asoc is peeled off and the old sk is freed after
getting it by asoc->base.sk and before calling lock_sock(sk).

To prevent the sk free, as a holder of the sk, ep should be alive when
calling lock_sock(). This patch uses call_rcu() and moves sock_put and
ep free into sctp_endpoint_destroy_rcu(), so that it's safe to try to
hold the ep under rcu_read_lock in sctp_transport_traverse_process().

If sctp_endpoint_hold() returns true, it means this ep is still alive
and we have held it and can continue to dump it; If it returns false,
it means this ep is dead and can be freed after rcu_read_unlock, and
we should skip it.

In sctp_sock_dump(), after locking the sk, if this ep is different from
tsp->asoc->ep, it means during this dumping, this asoc was peeled off
before calling lock_sock(), and the sk should be skipped; If this ep is
the same with tsp->asoc->ep, it means no peeloff happens on this asoc,
and due to lock_sock, no peeloff will happen either until release_sock.

Note that delaying endpoint free won't delay the port release, as the
port release happens in sctp_endpoint_destroy() before calling call_rcu().
Also, freeing endpoint by call_rcu() makes it safe to access the sk by
asoc->base.sk in sctp_assocs_seq_show() and sctp_rcv().

Thanks Jones to bring this issue up.

v1->v2:
  - improve the changelog.
  - add kfree(ep) into sctp_endpoint_destroy_rcu(), as Jakub noticed.

Reported-by: syzbot+9276d76e83e3bcde6c99@syzkaller.appspotmail.com
Reported-by: Lee Jones <lee.jones@linaro.org>
Fixes: d25adbeb0cdb ("sctp: fix an use-after-free issue in sctp_sock_dump")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/sctp/sctp.h    |  6 +++---
 include/net/sctp/structs.h |  3 ++-
 net/sctp/diag.c            | 12 ++++++------
 net/sctp/endpointola.c     | 23 +++++++++++++++--------
 net/sctp/socket.c          | 23 +++++++++++++++--------
 5 files changed, 41 insertions(+), 26 deletions(-)

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 4fc747b778eb6..33475d061823e 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -103,6 +103,7 @@ extern struct percpu_counter sctp_sockets_allocated;
 int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *);
 struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int, int *);
 
+typedef int (*sctp_callback_t)(struct sctp_endpoint *, struct sctp_transport *, void *);
 void sctp_transport_walk_start(struct rhashtable_iter *iter);
 void sctp_transport_walk_stop(struct rhashtable_iter *iter);
 struct sctp_transport *sctp_transport_get_next(struct net *net,
@@ -113,9 +114,8 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
 				  struct net *net,
 				  const union sctp_addr *laddr,
 				  const union sctp_addr *paddr, void *p);
-int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
-			    int (*cb_done)(struct sctp_transport *, void *),
-			    struct net *net, int *pos, void *p);
+int sctp_transport_traverse_process(sctp_callback_t cb, sctp_callback_t cb_done,
+				    struct net *net, int *pos, void *p);
 int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *), void *p);
 int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc,
 		       struct sctp_info *info);
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 51d698f2656fc..be9ff0422c162 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1339,6 +1339,7 @@ struct sctp_endpoint {
 
 	u32 secid;
 	u32 peer_secid;
+	struct rcu_head rcu;
 };
 
 /* Recover the outter endpoint structure. */
@@ -1354,7 +1355,7 @@ static inline struct sctp_endpoint *sctp_ep(struct sctp_ep_common *base)
 struct sctp_endpoint *sctp_endpoint_new(struct sock *, gfp_t);
 void sctp_endpoint_free(struct sctp_endpoint *);
 void sctp_endpoint_put(struct sctp_endpoint *);
-void sctp_endpoint_hold(struct sctp_endpoint *);
+int sctp_endpoint_hold(struct sctp_endpoint *ep);
 void sctp_endpoint_add_asoc(struct sctp_endpoint *, struct sctp_association *);
 struct sctp_association *sctp_endpoint_lookup_assoc(
 	const struct sctp_endpoint *ep,
diff --git a/net/sctp/diag.c b/net/sctp/diag.c
index 493fc01e5d2b7..babadd6720a2b 100644
--- a/net/sctp/diag.c
+++ b/net/sctp/diag.c
@@ -292,9 +292,8 @@ out:
 	return err;
 }
 
-static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
+static int sctp_sock_dump(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
 {
-	struct sctp_endpoint *ep = tsp->asoc->ep;
 	struct sctp_comm_param *commp = p;
 	struct sock *sk = ep->base.sk;
 	struct sk_buff *skb = commp->skb;
@@ -304,6 +303,8 @@ static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
 	int err = 0;
 
 	lock_sock(sk);
+	if (ep != tsp->asoc->ep)
+		goto release;
 	list_for_each_entry(assoc, &ep->asocs, asocs) {
 		if (cb->args[4] < cb->args[1])
 			goto next;
@@ -346,9 +347,8 @@ release:
 	return err;
 }
 
-static int sctp_sock_filter(struct sctp_transport *tsp, void *p)
+static int sctp_sock_filter(struct sctp_endpoint *ep, struct sctp_transport *tsp, void *p)
 {
-	struct sctp_endpoint *ep = tsp->asoc->ep;
 	struct sctp_comm_param *commp = p;
 	struct sock *sk = ep->base.sk;
 	const struct inet_diag_req_v2 *r = commp->r;
@@ -507,8 +507,8 @@ skip:
 	if (!(idiag_states & ~(TCPF_LISTEN | TCPF_CLOSE)))
 		goto done;
 
-	sctp_for_each_transport(sctp_sock_filter, sctp_sock_dump,
-				net, &pos, &commp);
+	sctp_transport_traverse_process(sctp_sock_filter, sctp_sock_dump,
+					net, &pos, &commp);
 	cb->args[2] = pos;
 
 done:
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 48c9c2c7602f7..efffde7f2328e 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -184,6 +184,18 @@ void sctp_endpoint_free(struct sctp_endpoint *ep)
 }
 
 /* Final destructor for endpoint.  */
+static void sctp_endpoint_destroy_rcu(struct rcu_head *head)
+{
+	struct sctp_endpoint *ep = container_of(head, struct sctp_endpoint, rcu);
+	struct sock *sk = ep->base.sk;
+
+	sctp_sk(sk)->ep = NULL;
+	sock_put(sk);
+
+	kfree(ep);
+	SCTP_DBG_OBJCNT_DEC(ep);
+}
+
 static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 {
 	struct sock *sk;
@@ -213,18 +225,13 @@ static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 	if (sctp_sk(sk)->bind_hash)
 		sctp_put_port(sk);
 
-	sctp_sk(sk)->ep = NULL;
-	/* Give up our hold on the sock */
-	sock_put(sk);
-
-	kfree(ep);
-	SCTP_DBG_OBJCNT_DEC(ep);
+	call_rcu(&ep->rcu, sctp_endpoint_destroy_rcu);
 }
 
 /* Hold a reference to an endpoint. */
-void sctp_endpoint_hold(struct sctp_endpoint *ep)
+int sctp_endpoint_hold(struct sctp_endpoint *ep)
 {
-	refcount_inc(&ep->base.refcnt);
+	return refcount_inc_not_zero(&ep->base.refcnt);
 }
 
 /* Release a reference to an endpoint and clean up if there are
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e872bc50bbe61..0a9e2c7d8e5f5 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5223,11 +5223,12 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
 }
 EXPORT_SYMBOL_GPL(sctp_transport_lookup_process);
 
-int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
-			    int (*cb_done)(struct sctp_transport *, void *),
-			    struct net *net, int *pos, void *p) {
+int sctp_transport_traverse_process(sctp_callback_t cb, sctp_callback_t cb_done,
+				    struct net *net, int *pos, void *p)
+{
 	struct rhashtable_iter hti;
 	struct sctp_transport *tsp;
+	struct sctp_endpoint *ep;
 	int ret;
 
 again:
@@ -5236,26 +5237,32 @@ again:
 
 	tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
 	for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
-		ret = cb(tsp, p);
-		if (ret)
-			break;
+		ep = tsp->asoc->ep;
+		if (sctp_endpoint_hold(ep)) { /* asoc can be peeled off */
+			ret = cb(ep, tsp, p);
+			if (ret)
+				break;
+			sctp_endpoint_put(ep);
+		}
 		(*pos)++;
 		sctp_transport_put(tsp);
 	}
 	sctp_transport_walk_stop(&hti);
 
 	if (ret) {
-		if (cb_done && !cb_done(tsp, p)) {
+		if (cb_done && !cb_done(ep, tsp, p)) {
 			(*pos)++;
+			sctp_endpoint_put(ep);
 			sctp_transport_put(tsp);
 			goto again;
 		}
+		sctp_endpoint_put(ep);
 		sctp_transport_put(tsp);
 	}
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(sctp_for_each_transport);
+EXPORT_SYMBOL_GPL(sctp_transport_traverse_process);
 
 /* 7.2.1 Association Status (SCTP_STATUS)
 
-- 
GitLab


From a67becdaa8adbd14b7e9ad9ed8b511720efa93ff Mon Sep 17 00:00:00 2001
From: Karsten Graul <kgraul@linux.ibm.com>
Date: Mon, 27 Dec 2021 14:35:30 +0100
Subject: [PATCH 2487/4878] net/smc: fix using of uninitialized completions

[ Upstream commit 6d7373dabfd3933ee30c40fc8c09d2a788f6ece1 ]

In smc_wr_tx_send_wait() the completion on index specified by
pend->idx is initialized and after smc_wr_tx_send() was called the wait
for completion starts. pend->idx is used to get the correct index for
the wait, but the pend structure could already be cleared in
smc_wr_tx_process_cqe().
Introduce pnd_idx to hold and use a local copy of the correct index.

Fixes: 09c61d24f96d ("net/smc: wait for departure of an IB message")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_wr.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index 9dbe4804853e0..a71c9631f1ad3 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -288,18 +288,20 @@ int smc_wr_tx_send_wait(struct smc_link *link, struct smc_wr_tx_pend_priv *priv,
 			unsigned long timeout)
 {
 	struct smc_wr_tx_pend *pend;
+	u32 pnd_idx;
 	int rc;
 
 	pend = container_of(priv, struct smc_wr_tx_pend, priv);
 	pend->compl_requested = 1;
-	init_completion(&link->wr_tx_compl[pend->idx]);
+	pnd_idx = pend->idx;
+	init_completion(&link->wr_tx_compl[pnd_idx]);
 
 	rc = smc_wr_tx_send(link, priv);
 	if (rc)
 		return rc;
 	/* wait for completion by smc_wr_tx_process_cqe() */
 	rc = wait_for_completion_interruptible_timeout(
-					&link->wr_tx_compl[pend->idx], timeout);
+					&link->wr_tx_compl[pnd_idx], timeout);
 	if (rc <= 0)
 		rc = -ENODATA;
 	if (rc > 0)
-- 
GitLab


From 40d36186913b5bd74d5acb2557df2beb76b84bbf Mon Sep 17 00:00:00 2001
From: Matthias-Christian Ott <ott@mirix.org>
Date: Sun, 26 Dec 2021 23:12:08 +0100
Subject: [PATCH 2488/4878] net: usb: pegasus: Do not drop long Ethernet frames

[ Upstream commit ca506fca461b260ab32952b610c3d4aadc6c11fd ]

The D-Link DSB-650TX (2001:4002) is unable to receive Ethernet frames
that are longer than 1518 octets, for example, Ethernet frames that
contain 802.1Q VLAN tags.

The frames are sent to the pegasus driver via USB but the driver
discards them because they have the Long_pkt field set to 1 in the
received status report. The function read_bulk_callback of the pegasus
driver treats such received "packets" (in the terminology of the
hardware) as errors but the field simply does just indicate that the
Ethernet frame (MAC destination to FCS) is longer than 1518 octets.

It seems that in the 1990s there was a distinction between
"giant" (> 1518) and "runt" (< 64) frames and the hardware includes
flags to indicate this distinction. It seems that the purpose of the
distinction "giant" frames was to not allow infinitely long frames due
to transmission errors and to allow hardware to have an upper limit of
the frame size. However, the hardware already has such limit with its
2048 octet receive buffer and, therefore, Long_pkt is merely a
convention and should not be treated as a receive error.

Actually, the hardware is even able to receive Ethernet frames with 2048
octets which exceeds the claimed limit frame size limit of the driver of
1536 octets (PEGASUS_MTU).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Matthias-Christian Ott <ott@mirix.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/pegasus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 2a748a924f838..138279bbb544b 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -518,11 +518,11 @@ static void read_bulk_callback(struct urb *urb)
 		goto goon;
 
 	rx_status = buf[count - 2];
-	if (rx_status & 0x1e) {
+	if (rx_status & 0x1c) {
 		netif_dbg(pegasus, rx_err, net,
 			  "RX packet error %x\n", rx_status);
 		net->stats.rx_errors++;
-		if (rx_status & 0x06)	/* long or runt	*/
+		if (rx_status & 0x04)	/* runt	*/
 			net->stats.rx_length_errors++;
 		if (rx_status & 0x08)
 			net->stats.rx_crc_errors++;
-- 
GitLab


From 7ef89bd1e8f1761cfd348d74150845eb57b7aa20 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sun, 26 Dec 2021 18:51:44 +0100
Subject: [PATCH 2489/4878] net: ag71xx: Fix a potential double free in error
 handling paths

[ Upstream commit 1cd5384c88af5b59bf9f3b6c1a151bc14b88c2cd ]

'ndev' is a managed resource allocated with devm_alloc_etherdev(), so there
is no need to call free_netdev() explicitly or there will be a double
free().

Simplify all error handling paths accordingly.

Fixes: d51b6ce441d3 ("net: ethernet: add ag71xx driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/atheros/ag71xx.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index a60ce90305819..c26c9b0c00d8f 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1904,15 +1904,12 @@ static int ag71xx_probe(struct platform_device *pdev)
 	ag->mac_reset = devm_reset_control_get(&pdev->dev, "mac");
 	if (IS_ERR(ag->mac_reset)) {
 		netif_err(ag, probe, ndev, "missing mac reset\n");
-		err = PTR_ERR(ag->mac_reset);
-		goto err_free;
+		return PTR_ERR(ag->mac_reset);
 	}
 
 	ag->mac_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
-	if (!ag->mac_base) {
-		err = -ENOMEM;
-		goto err_free;
-	}
+	if (!ag->mac_base)
+		return -ENOMEM;
 
 	ndev->irq = platform_get_irq(pdev, 0);
 	err = devm_request_irq(&pdev->dev, ndev->irq, ag71xx_interrupt,
@@ -1920,7 +1917,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 	if (err) {
 		netif_err(ag, probe, ndev, "unable to request IRQ %d\n",
 			  ndev->irq);
-		goto err_free;
+		return err;
 	}
 
 	ndev->netdev_ops = &ag71xx_netdev_ops;
@@ -1948,10 +1945,8 @@ static int ag71xx_probe(struct platform_device *pdev)
 	ag->stop_desc = dmam_alloc_coherent(&pdev->dev,
 					    sizeof(struct ag71xx_desc),
 					    &ag->stop_desc_dma, GFP_KERNEL);
-	if (!ag->stop_desc) {
-		err = -ENOMEM;
-		goto err_free;
-	}
+	if (!ag->stop_desc)
+		return -ENOMEM;
 
 	ag->stop_desc->data = 0;
 	ag->stop_desc->ctrl = 0;
@@ -1968,7 +1963,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 	err = of_get_phy_mode(np, &ag->phy_if_mode);
 	if (err) {
 		netif_err(ag, probe, ndev, "missing phy-mode property in DT\n");
-		goto err_free;
+		return err;
 	}
 
 	netif_napi_add(ndev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
@@ -1976,7 +1971,7 @@ static int ag71xx_probe(struct platform_device *pdev)
 	err = clk_prepare_enable(ag->clk_eth);
 	if (err) {
 		netif_err(ag, probe, ndev, "Failed to enable eth clk.\n");
-		goto err_free;
+		return err;
 	}
 
 	ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);
@@ -2012,8 +2007,6 @@ err_mdio_remove:
 	ag71xx_mdio_remove(ag);
 err_put_clk:
 	clk_disable_unprepare(ag->clk_eth);
-err_free:
-	free_netdev(ndev);
 	return err;
 }
 
-- 
GitLab


From 8d70dc0eecf0fb1f1d6980fd525243afb69e3e0e Mon Sep 17 00:00:00 2001
From: Aleksander Jan Bajkowski <olek2@wp.pl>
Date: Mon, 27 Dec 2021 17:22:03 +0100
Subject: [PATCH 2490/4878] net: lantiq_xrx200: fix statistics of received
 bytes

[ Upstream commit 5be60a945329d82f06fc755a43eeefbfc5f77d72 ]

Received frames have FCS truncated. There is no need
to subtract FCS length from the statistics.

Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/lantiq_xrx200.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c
index 072075bc60ee9..500511b72ac60 100644
--- a/drivers/net/ethernet/lantiq_xrx200.c
+++ b/drivers/net/ethernet/lantiq_xrx200.c
@@ -209,7 +209,7 @@ static int xrx200_hw_receive(struct xrx200_chan *ch)
 	skb->protocol = eth_type_trans(skb, net_dev);
 	netif_receive_skb(skb);
 	net_dev->stats.rx_packets++;
-	net_dev->stats.rx_bytes += len - ETH_FCS_LEN;
+	net_dev->stats.rx_bytes += len;
 
 	return 0;
 }
-- 
GitLab


From e553265ea56482da5700f56319fda9ff53e7dcb4 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Tue, 28 Dec 2021 12:48:11 +0000
Subject: [PATCH 2491/4878] NFC: st21nfca: Fix memory leak in device probe and
 remove

[ Upstream commit 1b9dadba502234eea7244879b8d5d126bfaf9f0c ]

'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:

unreferenced object 0xffff88800bc06800 (size 512):
  comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
    [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
    [<000000005fea522c>] __alloc_skb+0x124/0x380
    [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2

Fix it by freeing 'pending_skb' in error and remove.

Fixes: 68957303f44a ("NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/st21nfca/i2c.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index 23ed11f91213d..6ea59426ab0bf 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -533,7 +533,8 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
 	phy->gpiod_ena = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
 	if (IS_ERR(phy->gpiod_ena)) {
 		nfc_err(dev, "Unable to get ENABLE GPIO\n");
-		return PTR_ERR(phy->gpiod_ena);
+		r = PTR_ERR(phy->gpiod_ena);
+		goto out_free;
 	}
 
 	phy->se_status.is_ese_present =
@@ -544,7 +545,7 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
 	r = st21nfca_hci_platform_init(phy);
 	if (r < 0) {
 		nfc_err(&client->dev, "Unable to reboot st21nfca\n");
-		return r;
+		goto out_free;
 	}
 
 	r = devm_request_threaded_irq(&client->dev, client->irq, NULL,
@@ -553,15 +554,23 @@ static int st21nfca_hci_i2c_probe(struct i2c_client *client,
 				ST21NFCA_HCI_DRIVER_NAME, phy);
 	if (r < 0) {
 		nfc_err(&client->dev, "Unable to register IRQ handler\n");
-		return r;
+		goto out_free;
 	}
 
-	return st21nfca_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,
-					ST21NFCA_FRAME_HEADROOM,
-					ST21NFCA_FRAME_TAILROOM,
-					ST21NFCA_HCI_LLC_MAX_PAYLOAD,
-					&phy->hdev,
-					&phy->se_status);
+	r = st21nfca_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,
+			       ST21NFCA_FRAME_HEADROOM,
+			       ST21NFCA_FRAME_TAILROOM,
+			       ST21NFCA_HCI_LLC_MAX_PAYLOAD,
+			       &phy->hdev,
+			       &phy->se_status);
+	if (r)
+		goto out_free;
+
+	return 0;
+
+out_free:
+	kfree_skb(phy->pending_skb);
+	return r;
 }
 
 static int st21nfca_hci_i2c_remove(struct i2c_client *client)
@@ -574,6 +583,8 @@ static int st21nfca_hci_i2c_remove(struct i2c_client *client)
 
 	if (phy->powered)
 		st21nfca_hci_i2c_disable(phy);
+	if (phy->pending_skb)
+		kfree_skb(phy->pending_skb);
 
 	return 0;
 }
-- 
GitLab


From 99f19566b1c4d3dc4d934ee2ef43faadebb56d70 Mon Sep 17 00:00:00 2001
From: Karsten Graul <kgraul@linux.ibm.com>
Date: Thu, 7 Oct 2021 16:14:40 +0200
Subject: [PATCH 2492/4878] net/smc: improved fix wait on already cleared link

[ Upstream commit 95f7f3e7dc6bd2e735cb5de11734ea2222b1e05a ]

Commit 8f3d65c16679 ("net/smc: fix wait on already cleared link")
introduced link refcounting to avoid waits on already cleared links.
This patch extents and improves the refcounting to cover all
remaining possible cases for this kind of error situation.

Fixes: 15e1b99aadfb ("net/smc: no WR buffer wait for terminating link group")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_cdc.c  |  7 +++++-
 net/smc/smc_core.c | 20 ++++++++-------
 net/smc/smc_llc.c  | 63 +++++++++++++++++++++++++++++++++++-----------
 net/smc/smc_tx.c   | 22 ++++------------
 net/smc/smc_wr.h   | 14 +++++++++++
 5 files changed, 85 insertions(+), 41 deletions(-)

diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index b1ce6ccbfaec8..3602829006dda 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -150,9 +150,11 @@ static int smcr_cdc_get_slot_and_msg_send(struct smc_connection *conn)
 
 again:
 	link = conn->lnk;
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_cdc_get_free_slot(conn, link, &wr_buf, NULL, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 
 	spin_lock_bh(&conn->send_lock);
 	if (link != conn->lnk) {
@@ -160,6 +162,7 @@ again:
 		spin_unlock_bh(&conn->send_lock);
 		smc_wr_tx_put_slot(link,
 				   (struct smc_wr_tx_pend_priv *)pend);
+		smc_wr_tx_link_put(link);
 		if (again)
 			return -ENOLINK;
 		again = true;
@@ -167,6 +170,8 @@ again:
 	}
 	rc = smc_cdc_msg_send(conn, wr_buf, pend);
 	spin_unlock_bh(&conn->send_lock);
+put_out:
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 3f1343dfa16ba..135949ef85b3c 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -550,7 +550,7 @@ struct smc_link *smc_switch_conns(struct smc_link_group *lgr,
 		to_lnk = &lgr->lnk[i];
 		break;
 	}
-	if (!to_lnk) {
+	if (!to_lnk || !smc_wr_tx_link_hold(to_lnk)) {
 		smc_lgr_terminate_sched(lgr);
 		return NULL;
 	}
@@ -582,24 +582,26 @@ again:
 		read_unlock_bh(&lgr->conns_lock);
 		/* pre-fetch buffer outside of send_lock, might sleep */
 		rc = smc_cdc_get_free_slot(conn, to_lnk, &wr_buf, NULL, &pend);
-		if (rc) {
-			smcr_link_down_cond_sched(to_lnk);
-			return NULL;
-		}
+		if (rc)
+			goto err_out;
 		/* avoid race with smcr_tx_sndbuf_nonempty() */
 		spin_lock_bh(&conn->send_lock);
 		conn->lnk = to_lnk;
 		rc = smc_switch_cursor(smc, pend, wr_buf);
 		spin_unlock_bh(&conn->send_lock);
 		sock_put(&smc->sk);
-		if (rc) {
-			smcr_link_down_cond_sched(to_lnk);
-			return NULL;
-		}
+		if (rc)
+			goto err_out;
 		goto again;
 	}
 	read_unlock_bh(&lgr->conns_lock);
+	smc_wr_tx_link_put(to_lnk);
 	return to_lnk;
+
+err_out:
+	smcr_link_down_cond_sched(to_lnk);
+	smc_wr_tx_link_put(to_lnk);
+	return NULL;
 }
 
 static void smcr_buf_unuse(struct smc_buf_desc *rmb_desc,
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index d8fe4e1f24d1f..f1d323439a2af 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -383,9 +383,11 @@ int smc_llc_send_confirm_link(struct smc_link *link,
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	confllc = (struct smc_llc_msg_confirm_link *)wr_buf;
 	memset(confllc, 0, sizeof(*confllc));
 	confllc->hd.common.type = SMC_LLC_CONFIRM_LINK;
@@ -402,6 +404,8 @@ int smc_llc_send_confirm_link(struct smc_link *link,
 	confllc->max_links = SMC_LLC_ADD_LNK_MAX_LINKS;
 	/* send llc message */
 	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
@@ -415,9 +419,11 @@ static int smc_llc_send_confirm_rkey(struct smc_link *send_link,
 	struct smc_link *link;
 	int i, rc, rtok_ix;
 
+	if (!smc_wr_tx_link_hold(send_link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(send_link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	rkeyllc = (struct smc_llc_msg_confirm_rkey *)wr_buf;
 	memset(rkeyllc, 0, sizeof(*rkeyllc));
 	rkeyllc->hd.common.type = SMC_LLC_CONFIRM_RKEY;
@@ -444,6 +450,8 @@ static int smc_llc_send_confirm_rkey(struct smc_link *send_link,
 		(u64)sg_dma_address(rmb_desc->sgt[send_link->link_idx].sgl));
 	/* send llc message */
 	rc = smc_wr_tx_send(send_link, pend);
+put_out:
+	smc_wr_tx_link_put(send_link);
 	return rc;
 }
 
@@ -456,9 +464,11 @@ static int smc_llc_send_delete_rkey(struct smc_link *link,
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	rkeyllc = (struct smc_llc_msg_delete_rkey *)wr_buf;
 	memset(rkeyllc, 0, sizeof(*rkeyllc));
 	rkeyllc->hd.common.type = SMC_LLC_DELETE_RKEY;
@@ -467,6 +477,8 @@ static int smc_llc_send_delete_rkey(struct smc_link *link,
 	rkeyllc->rkey[0] = htonl(rmb_desc->mr_rx[link->link_idx]->rkey);
 	/* send llc message */
 	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
@@ -480,9 +492,11 @@ int smc_llc_send_add_link(struct smc_link *link, u8 mac[], u8 gid[],
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	addllc = (struct smc_llc_msg_add_link *)wr_buf;
 
 	memset(addllc, 0, sizeof(*addllc));
@@ -504,6 +518,8 @@ int smc_llc_send_add_link(struct smc_link *link, u8 mac[], u8 gid[],
 	}
 	/* send llc message */
 	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
@@ -517,9 +533,11 @@ int smc_llc_send_delete_link(struct smc_link *link, u8 link_del_id,
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	delllc = (struct smc_llc_msg_del_link *)wr_buf;
 
 	memset(delllc, 0, sizeof(*delllc));
@@ -536,6 +554,8 @@ int smc_llc_send_delete_link(struct smc_link *link, u8 link_del_id,
 	delllc->reason = htonl(reason);
 	/* send llc message */
 	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
@@ -547,9 +567,11 @@ static int smc_llc_send_test_link(struct smc_link *link, u8 user_data[16])
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	testllc = (struct smc_llc_msg_test_link *)wr_buf;
 	memset(testllc, 0, sizeof(*testllc));
 	testllc->hd.common.type = SMC_LLC_TEST_LINK;
@@ -557,6 +579,8 @@ static int smc_llc_send_test_link(struct smc_link *link, u8 user_data[16])
 	memcpy(testllc->user_data, user_data, sizeof(testllc->user_data));
 	/* send llc message */
 	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
@@ -567,13 +591,16 @@ static int smc_llc_send_message(struct smc_link *link, void *llcbuf)
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
-	if (!smc_link_usable(link))
+	if (!smc_wr_tx_link_hold(link))
 		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	memcpy(wr_buf, llcbuf, sizeof(union smc_llc_msg));
-	return smc_wr_tx_send(link, pend);
+	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
+	return rc;
 }
 
 /* schedule an llc send on link, may wait for buffers,
@@ -586,13 +613,16 @@ static int smc_llc_send_message_wait(struct smc_link *link, void *llcbuf)
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
-	if (!smc_link_usable(link))
+	if (!smc_wr_tx_link_hold(link))
 		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	memcpy(wr_buf, llcbuf, sizeof(union smc_llc_msg));
-	return smc_wr_tx_send_wait(link, pend, SMC_LLC_WAIT_TIME);
+	rc = smc_wr_tx_send_wait(link, pend, SMC_LLC_WAIT_TIME);
+put_out:
+	smc_wr_tx_link_put(link);
+	return rc;
 }
 
 /********************************* receive ***********************************/
@@ -672,9 +702,11 @@ static int smc_llc_add_link_cont(struct smc_link *link,
 	struct smc_buf_desc *rmb;
 	u8 n;
 
+	if (!smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_llc_add_pending_send(link, &wr_buf, &pend);
 	if (rc)
-		return rc;
+		goto put_out;
 	addc_llc = (struct smc_llc_msg_add_link_cont *)wr_buf;
 	memset(addc_llc, 0, sizeof(*addc_llc));
 
@@ -706,7 +738,10 @@ static int smc_llc_add_link_cont(struct smc_link *link,
 	addc_llc->hd.length = sizeof(struct smc_llc_msg_add_link_cont);
 	if (lgr->role == SMC_CLNT)
 		addc_llc->hd.flags |= SMC_LLC_FLAG_RESP;
-	return smc_wr_tx_send(link, pend);
+	rc = smc_wr_tx_send(link, pend);
+put_out:
+	smc_wr_tx_link_put(link);
+	return rc;
 }
 
 static int smc_llc_cli_rkey_exchange(struct smc_link *link,
diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c
index ff02952b3d03e..52ef1fca0b604 100644
--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -479,7 +479,7 @@ static int smc_tx_rdma_writes(struct smc_connection *conn,
 /* Wakeup sndbuf consumers from any context (IRQ or process)
  * since there is more data to transmit; usable snd_wnd as max transmit
  */
-static int _smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
+static int smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
 {
 	struct smc_cdc_producer_flags *pflags = &conn->local_tx_ctrl.prod_flags;
 	struct smc_link *link = conn->lnk;
@@ -488,8 +488,11 @@ static int _smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
 	struct smc_wr_buf *wr_buf;
 	int rc;
 
+	if (!link || !smc_wr_tx_link_hold(link))
+		return -ENOLINK;
 	rc = smc_cdc_get_free_slot(conn, link, &wr_buf, &wr_rdma_buf, &pend);
 	if (rc < 0) {
+		smc_wr_tx_link_put(link);
 		if (rc == -EBUSY) {
 			struct smc_sock *smc =
 				container_of(conn, struct smc_sock, conn);
@@ -530,22 +533,7 @@ static int _smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
 
 out_unlock:
 	spin_unlock_bh(&conn->send_lock);
-	return rc;
-}
-
-static int smcr_tx_sndbuf_nonempty(struct smc_connection *conn)
-{
-	struct smc_link *link = conn->lnk;
-	int rc = -ENOLINK;
-
-	if (!link)
-		return rc;
-
-	atomic_inc(&link->wr_tx_refcnt);
-	if (smc_link_usable(link))
-		rc = _smcr_tx_sndbuf_nonempty(conn);
-	if (atomic_dec_and_test(&link->wr_tx_refcnt))
-		wake_up_all(&link->wr_tx_wait);
+	smc_wr_tx_link_put(link);
 	return rc;
 }
 
diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 423b8709f1c9e..2bc626f230a56 100644
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -60,6 +60,20 @@ static inline void smc_wr_tx_set_wr_id(atomic_long_t *wr_tx_id, long val)
 	atomic_long_set(wr_tx_id, val);
 }
 
+static inline bool smc_wr_tx_link_hold(struct smc_link *link)
+{
+	if (!smc_link_usable(link))
+		return false;
+	atomic_inc(&link->wr_tx_refcnt);
+	return true;
+}
+
+static inline void smc_wr_tx_link_put(struct smc_link *link)
+{
+	if (atomic_dec_and_test(&link->wr_tx_refcnt))
+		wake_up_all(&link->wr_tx_wait);
+}
+
 static inline void smc_wr_wakeup_tx_wait(struct smc_link *lnk)
 {
 	wake_up_all(&lnk->wr_tx_wait);
-- 
GitLab


From 97c87c1db9ffdcdcc52697996010b9464ac65a44 Mon Sep 17 00:00:00 2001
From: Dust Li <dust.li@linux.alibaba.com>
Date: Tue, 28 Dec 2021 17:03:24 +0800
Subject: [PATCH 2493/4878] net/smc: don't send CDC/LLC message if link not
 ready

[ Upstream commit 90cee52f2e780345d3629e278291aea5ac74f40f ]

We found smc_llc_send_link_delete_all() sometimes wait
for 2s timeout when testing with RDMA link up/down.
It is possible when a smc_link is in ACTIVATING state,
the underlaying QP is still in RESET or RTR state, which
cannot send any messages out.

smc_llc_send_link_delete_all() use smc_link_usable() to
checks whether the link is usable, if the QP is still in
RESET or RTR state, but the smc_link is in ACTIVATING, this
LLC message will always fail without any CQE entering the
CQ, and we will always wait 2s before timeout.

Since we cannot send any messages through the QP before
the QP enter RTS. I add a wrapper smc_link_sendable()
which checks the state of QP along with the link state.
And replace smc_link_usable() with smc_link_sendable()
in all LLC & CDC message sending routine.

Fixes: 5f08318f617b ("smc: connection data control (CDC)")
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc_core.c | 2 +-
 net/smc/smc_core.h | 6 ++++++
 net/smc/smc_llc.c  | 2 +-
 net/smc/smc_wr.c   | 4 ++--
 net/smc/smc_wr.h   | 2 +-
 5 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 135949ef85b3c..fb4327a81a0f0 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -226,7 +226,7 @@ static void smcr_lgr_link_deactivate_all(struct smc_link_group *lgr)
 	for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
 		struct smc_link *lnk = &lgr->lnk[i];
 
-		if (smc_link_usable(lnk))
+		if (smc_link_sendable(lnk))
 			lnk->state = SMC_LNK_INACTIVE;
 	}
 	wake_up_all(&lgr->llc_msg_waiter);
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h
index 4745a9a5a28f5..9364d0f35ccec 100644
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -359,6 +359,12 @@ static inline bool smc_link_usable(struct smc_link *lnk)
 	return true;
 }
 
+static inline bool smc_link_sendable(struct smc_link *lnk)
+{
+	return smc_link_usable(lnk) &&
+		lnk->qp_attr.cur_qp_state == IB_QPS_RTS;
+}
+
 static inline bool smc_link_active(struct smc_link *lnk)
 {
 	return lnk->state == SMC_LNK_ACTIVE;
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index f1d323439a2af..ee1f0fdba0855 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -1358,7 +1358,7 @@ void smc_llc_send_link_delete_all(struct smc_link_group *lgr, bool ord, u32 rsn)
 	delllc.reason = htonl(rsn);
 
 	for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
-		if (!smc_link_usable(&lgr->lnk[i]))
+		if (!smc_link_sendable(&lgr->lnk[i]))
 			continue;
 		if (!smc_llc_send_message_wait(&lgr->lnk[i], &delllc))
 			break;
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index a71c9631f1ad3..cae22d240e0a6 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -169,7 +169,7 @@ void smc_wr_tx_cq_handler(struct ib_cq *ib_cq, void *cq_context)
 static inline int smc_wr_tx_get_free_slot_index(struct smc_link *link, u32 *idx)
 {
 	*idx = link->wr_tx_cnt;
-	if (!smc_link_usable(link))
+	if (!smc_link_sendable(link))
 		return -ENOLINK;
 	for_each_clear_bit(*idx, link->wr_tx_mask, link->wr_tx_cnt) {
 		if (!test_and_set_bit(*idx, link->wr_tx_mask))
@@ -212,7 +212,7 @@ int smc_wr_tx_get_free_slot(struct smc_link *link,
 	} else {
 		rc = wait_event_interruptible_timeout(
 			link->wr_tx_wait,
-			!smc_link_usable(link) ||
+			!smc_link_sendable(link) ||
 			lgr->terminating ||
 			(smc_wr_tx_get_free_slot_index(link, &idx) != -EBUSY),
 			SMC_WR_TX_WAIT_FREE_SLOT_TIME);
diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 2bc626f230a56..102d515757ee2 100644
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -62,7 +62,7 @@ static inline void smc_wr_tx_set_wr_id(atomic_long_t *wr_tx_id, long val)
 
 static inline bool smc_wr_tx_link_hold(struct smc_link *link)
 {
-	if (!smc_link_usable(link))
+	if (!smc_link_sendable(link))
 		return false;
 	atomic_inc(&link->wr_tx_refcnt);
 	return true;
-- 
GitLab


From e8a5988a85c719ce7205cb00dcf0716dcf611332 Mon Sep 17 00:00:00 2001
From: Dust Li <dust.li@linux.alibaba.com>
Date: Tue, 28 Dec 2021 17:03:25 +0800
Subject: [PATCH 2494/4878] net/smc: fix kernel panic caused by race of
 smc_sock

[ Upstream commit 349d43127dac00c15231e8ffbcaabd70f7b0e544 ]

A crash occurs when smc_cdc_tx_handler() tries to access smc_sock
but smc_release() has already freed it.

[ 4570.695099] BUG: unable to handle page fault for address: 000000002eae9e88
[ 4570.696048] #PF: supervisor write access in kernel mode
[ 4570.696728] #PF: error_code(0x0002) - not-present page
[ 4570.697401] PGD 0 P4D 0
[ 4570.697716] Oops: 0002 [#1] PREEMPT SMP NOPTI
[ 4570.698228] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc4+ #111
[ 4570.699013] Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 8c24b4c 04/0
[ 4570.699933] RIP: 0010:_raw_spin_lock+0x1a/0x30
<...>
[ 4570.711446] Call Trace:
[ 4570.711746]  <IRQ>
[ 4570.711992]  smc_cdc_tx_handler+0x41/0xc0
[ 4570.712470]  smc_wr_tx_tasklet_fn+0x213/0x560
[ 4570.712981]  ? smc_cdc_tx_dismisser+0x10/0x10
[ 4570.713489]  tasklet_action_common.isra.17+0x66/0x140
[ 4570.714083]  __do_softirq+0x123/0x2f4
[ 4570.714521]  irq_exit_rcu+0xc4/0xf0
[ 4570.714934]  common_interrupt+0xba/0xe0

Though smc_cdc_tx_handler() checked the existence of smc connection,
smc_release() may have already dismissed and released the smc socket
before smc_cdc_tx_handler() further visits it.

smc_cdc_tx_handler()           |smc_release()
if (!conn)                     |
                               |
                               |smc_cdc_tx_dismiss_slots()
                               |      smc_cdc_tx_dismisser()
                               |
                               |sock_put(&smc->sk) <- last sock_put,
                               |                      smc_sock freed
bh_lock_sock(&smc->sk) (panic) |

To make sure we won't receive any CDC messages after we free the
smc_sock, add a refcount on the smc_connection for inflight CDC
message(posted to the QP but haven't received related CQE), and
don't release the smc_connection until all the inflight CDC messages
haven been done, for both success or failed ones.

Using refcount on CDC messages brings another problem: when the link
is going to be destroyed, smcr_link_clear() will reset the QP, which
then remove all the pending CQEs related to the QP in the CQ. To make
sure all the CQEs will always come back so the refcount on the
smc_connection can always reach 0, smc_ib_modify_qp_reset() was replaced
by smc_ib_modify_qp_error().
And remove the timeout in smc_wr_tx_wait_no_pending_sends() since we
need to wait for all pending WQEs done, or we may encounter use-after-
free when handling CQEs.

For IB device removal routine, we need to wait for all the QPs on that
device been destroyed before we can destroy CQs on the device, or
the refcount on smc_connection won't reach 0 and smc_sock cannot be
released.

Fixes: 5f08318f617b ("smc: connection data control (CDC)")
Reported-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/smc/smc.h      |  5 +++++
 net/smc/smc_cdc.c  | 52 +++++++++++++++++++++-------------------------
 net/smc/smc_cdc.h  |  2 +-
 net/smc/smc_core.c | 25 +++++++++++++++++-----
 net/smc/smc_ib.c   |  4 ++--
 net/smc/smc_ib.h   |  1 +
 net/smc/smc_wr.c   | 41 +++---------------------------------
 net/smc/smc_wr.h   |  3 +--
 8 files changed, 57 insertions(+), 76 deletions(-)

diff --git a/net/smc/smc.h b/net/smc/smc.h
index d65e15f0c944c..e6919fe31617b 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -170,6 +170,11 @@ struct smc_connection {
 	u16			tx_cdc_seq;	/* sequence # for CDC send */
 	u16			tx_cdc_seq_fin;	/* sequence # - tx completed */
 	spinlock_t		send_lock;	/* protect wr_sends */
+	atomic_t		cdc_pend_tx_wr; /* number of pending tx CDC wqe
+						 * - inc when post wqe,
+						 * - dec on polled tx cqe
+						 */
+	wait_queue_head_t	cdc_pend_tx_wq; /* wakeup on no cdc_pend_tx_wr*/
 	struct delayed_work	tx_work;	/* retry of smc_cdc_msg_send */
 	u32			tx_off;		/* base offset in peer rmb */
 
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index 3602829006dda..0c490cdde6a49 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -31,10 +31,6 @@ static void smc_cdc_tx_handler(struct smc_wr_tx_pend_priv *pnd_snd,
 	struct smc_sock *smc;
 	int diff;
 
-	if (!conn)
-		/* already dismissed */
-		return;
-
 	smc = container_of(conn, struct smc_sock, conn);
 	bh_lock_sock(&smc->sk);
 	if (!wc_status) {
@@ -51,6 +47,12 @@ static void smc_cdc_tx_handler(struct smc_wr_tx_pend_priv *pnd_snd,
 			      conn);
 		conn->tx_cdc_seq_fin = cdcpend->ctrl_seq;
 	}
+
+	if (atomic_dec_and_test(&conn->cdc_pend_tx_wr) &&
+	    unlikely(wq_has_sleeper(&conn->cdc_pend_tx_wq)))
+		wake_up(&conn->cdc_pend_tx_wq);
+	WARN_ON(atomic_read(&conn->cdc_pend_tx_wr) < 0);
+
 	smc_tx_sndbuf_nonfull(smc);
 	bh_unlock_sock(&smc->sk);
 }
@@ -107,6 +109,10 @@ int smc_cdc_msg_send(struct smc_connection *conn,
 	conn->tx_cdc_seq++;
 	conn->local_tx_ctrl.seqno = conn->tx_cdc_seq;
 	smc_host_msg_to_cdc((struct smc_cdc_msg *)wr_buf, conn, &cfed);
+
+	atomic_inc(&conn->cdc_pend_tx_wr);
+	smp_mb__after_atomic(); /* Make sure cdc_pend_tx_wr added before post */
+
 	rc = smc_wr_tx_send(link, (struct smc_wr_tx_pend_priv *)pend);
 	if (!rc) {
 		smc_curs_copy(&conn->rx_curs_confirmed, &cfed, conn);
@@ -114,6 +120,7 @@ int smc_cdc_msg_send(struct smc_connection *conn,
 	} else {
 		conn->tx_cdc_seq--;
 		conn->local_tx_ctrl.seqno = conn->tx_cdc_seq;
+		atomic_dec(&conn->cdc_pend_tx_wr);
 	}
 
 	return rc;
@@ -136,7 +143,18 @@ int smcr_cdc_msg_send_validation(struct smc_connection *conn,
 	peer->token = htonl(local->token);
 	peer->prod_flags.failover_validation = 1;
 
+	/* We need to set pend->conn here to make sure smc_cdc_tx_handler()
+	 * can handle properly
+	 */
+	smc_cdc_add_pending_send(conn, pend);
+
+	atomic_inc(&conn->cdc_pend_tx_wr);
+	smp_mb__after_atomic(); /* Make sure cdc_pend_tx_wr added before post */
+
 	rc = smc_wr_tx_send(link, (struct smc_wr_tx_pend_priv *)pend);
+	if (unlikely(rc))
+		atomic_dec(&conn->cdc_pend_tx_wr);
+
 	return rc;
 }
 
@@ -193,31 +211,9 @@ int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn)
 	return rc;
 }
 
-static bool smc_cdc_tx_filter(struct smc_wr_tx_pend_priv *tx_pend,
-			      unsigned long data)
+void smc_cdc_wait_pend_tx_wr(struct smc_connection *conn)
 {
-	struct smc_connection *conn = (struct smc_connection *)data;
-	struct smc_cdc_tx_pend *cdc_pend =
-		(struct smc_cdc_tx_pend *)tx_pend;
-
-	return cdc_pend->conn == conn;
-}
-
-static void smc_cdc_tx_dismisser(struct smc_wr_tx_pend_priv *tx_pend)
-{
-	struct smc_cdc_tx_pend *cdc_pend =
-		(struct smc_cdc_tx_pend *)tx_pend;
-
-	cdc_pend->conn = NULL;
-}
-
-void smc_cdc_tx_dismiss_slots(struct smc_connection *conn)
-{
-	struct smc_link *link = conn->lnk;
-
-	smc_wr_tx_dismiss_slots(link, SMC_CDC_MSG_TYPE,
-				smc_cdc_tx_filter, smc_cdc_tx_dismisser,
-				(unsigned long)conn);
+	wait_event(conn->cdc_pend_tx_wq, !atomic_read(&conn->cdc_pend_tx_wr));
 }
 
 /* Send a SMC-D CDC header.
diff --git a/net/smc/smc_cdc.h b/net/smc/smc_cdc.h
index 0a0a89abd38b2..696cc11f2303b 100644
--- a/net/smc/smc_cdc.h
+++ b/net/smc/smc_cdc.h
@@ -291,7 +291,7 @@ int smc_cdc_get_free_slot(struct smc_connection *conn,
 			  struct smc_wr_buf **wr_buf,
 			  struct smc_rdma_wr **wr_rdma_buf,
 			  struct smc_cdc_tx_pend **pend);
-void smc_cdc_tx_dismiss_slots(struct smc_connection *conn);
+void smc_cdc_wait_pend_tx_wr(struct smc_connection *conn);
 int smc_cdc_msg_send(struct smc_connection *conn, struct smc_wr_buf *wr_buf,
 		     struct smc_cdc_tx_pend *pend);
 int smc_cdc_get_slot_and_msg_send(struct smc_connection *conn);
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index fb4327a81a0f0..2a22dc85951ee 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -657,7 +657,7 @@ void smc_conn_free(struct smc_connection *conn)
 			smc_ism_unset_conn(conn);
 		tasklet_kill(&conn->rx_tsklet);
 	} else {
-		smc_cdc_tx_dismiss_slots(conn);
+		smc_cdc_wait_pend_tx_wr(conn);
 		if (current_work() != &conn->abort_work)
 			cancel_work_sync(&conn->abort_work);
 	}
@@ -734,7 +734,7 @@ void smcr_link_clear(struct smc_link *lnk, bool log)
 	smc_llc_link_clear(lnk, log);
 	smcr_buf_unmap_lgr(lnk);
 	smcr_rtoken_clear_link(lnk);
-	smc_ib_modify_qp_reset(lnk);
+	smc_ib_modify_qp_error(lnk);
 	smc_wr_free_link(lnk);
 	smc_ib_destroy_queue_pair(lnk);
 	smc_ib_dealloc_protection_domain(lnk);
@@ -878,7 +878,7 @@ static void smc_conn_kill(struct smc_connection *conn, bool soft)
 		else
 			tasklet_unlock_wait(&conn->rx_tsklet);
 	} else {
-		smc_cdc_tx_dismiss_slots(conn);
+		smc_cdc_wait_pend_tx_wr(conn);
 	}
 	smc_lgr_unregister_conn(conn);
 	smc_close_active_abort(smc);
@@ -1002,11 +1002,16 @@ void smc_smcd_terminate_all(struct smcd_dev *smcd)
 /* Called when an SMCR device is removed or the smc module is unloaded.
  * If smcibdev is given, all SMCR link groups using this device are terminated.
  * If smcibdev is NULL, all SMCR link groups are terminated.
+ *
+ * We must wait here for QPs been destroyed before we destroy the CQs,
+ * or we won't received any CQEs and cdc_pend_tx_wr cannot reach 0 thus
+ * smc_sock cannot be released.
  */
 void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 {
 	struct smc_link_group *lgr, *lg;
 	LIST_HEAD(lgr_free_list);
+	LIST_HEAD(lgr_linkdown_list);
 	int i;
 
 	spin_lock_bh(&smc_lgr_list.lock);
@@ -1018,7 +1023,7 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 		list_for_each_entry_safe(lgr, lg, &smc_lgr_list.list, list) {
 			for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
 				if (lgr->lnk[i].smcibdev == smcibdev)
-					smcr_link_down_cond_sched(&lgr->lnk[i]);
+					list_move_tail(&lgr->list, &lgr_linkdown_list);
 			}
 		}
 	}
@@ -1030,6 +1035,16 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 		__smc_lgr_terminate(lgr, false);
 	}
 
+	list_for_each_entry_safe(lgr, lg, &lgr_linkdown_list, list) {
+		for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
+			if (lgr->lnk[i].smcibdev == smcibdev) {
+				mutex_lock(&lgr->llc_conf_mutex);
+				smcr_link_down_cond(&lgr->lnk[i]);
+				mutex_unlock(&lgr->llc_conf_mutex);
+			}
+		}
+	}
+
 	if (smcibdev) {
 		if (atomic_read(&smcibdev->lnk_cnt))
 			wait_event(smcibdev->lnks_deleted,
@@ -1129,7 +1144,6 @@ static void smcr_link_down(struct smc_link *lnk)
 	if (!lgr || lnk->state == SMC_LNK_UNUSED || list_empty(&lgr->list))
 		return;
 
-	smc_ib_modify_qp_reset(lnk);
 	to_lnk = smc_switch_conns(lgr, lnk, true);
 	if (!to_lnk) { /* no backup link available */
 		smcr_link_clear(lnk, true);
@@ -1357,6 +1371,7 @@ create:
 	conn->local_tx_ctrl.common.type = SMC_CDC_MSG_TYPE;
 	conn->local_tx_ctrl.len = SMC_WR_TX_SIZE;
 	conn->urg_state = SMC_URG_READ;
+	init_waitqueue_head(&conn->cdc_pend_tx_wq);
 	INIT_WORK(&smc->conn.abort_work, smc_conn_abort_work);
 	if (ini->is_smcd) {
 		conn->rx_off = sizeof(struct smcd_cdc_msg);
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
index fc766b537ac7a..f1ffbd414602e 100644
--- a/net/smc/smc_ib.c
+++ b/net/smc/smc_ib.c
@@ -100,12 +100,12 @@ int smc_ib_modify_qp_rts(struct smc_link *lnk)
 			    IB_QP_MAX_QP_RD_ATOMIC);
 }
 
-int smc_ib_modify_qp_reset(struct smc_link *lnk)
+int smc_ib_modify_qp_error(struct smc_link *lnk)
 {
 	struct ib_qp_attr qp_attr;
 
 	memset(&qp_attr, 0, sizeof(qp_attr));
-	qp_attr.qp_state = IB_QPS_RESET;
+	qp_attr.qp_state = IB_QPS_ERR;
 	return ib_modify_qp(lnk->roce_qp, &qp_attr, IB_QP_STATE);
 }
 
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h
index 2ce481187dd0b..f90d15eae2aab 100644
--- a/net/smc/smc_ib.h
+++ b/net/smc/smc_ib.h
@@ -74,6 +74,7 @@ int smc_ib_create_queue_pair(struct smc_link *lnk);
 int smc_ib_ready_link(struct smc_link *lnk);
 int smc_ib_modify_qp_rts(struct smc_link *lnk);
 int smc_ib_modify_qp_reset(struct smc_link *lnk);
+int smc_ib_modify_qp_error(struct smc_link *lnk);
 long smc_ib_setup_per_ibdev(struct smc_ib_device *smcibdev);
 int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags,
 			     struct smc_buf_desc *buf_slot, u8 link_idx);
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index cae22d240e0a6..5a81f8c9ebf90 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -62,13 +62,9 @@ static inline bool smc_wr_is_tx_pend(struct smc_link *link)
 }
 
 /* wait till all pending tx work requests on the given link are completed */
-int smc_wr_tx_wait_no_pending_sends(struct smc_link *link)
+void smc_wr_tx_wait_no_pending_sends(struct smc_link *link)
 {
-	if (wait_event_timeout(link->wr_tx_wait, !smc_wr_is_tx_pend(link),
-			       SMC_WR_TX_WAIT_PENDING_TIME))
-		return 0;
-	else /* timeout */
-		return -EPIPE;
+	wait_event(link->wr_tx_wait, !smc_wr_is_tx_pend(link));
 }
 
 static inline int smc_wr_tx_find_pending_index(struct smc_link *link, u64 wr_id)
@@ -87,7 +83,6 @@ static inline void smc_wr_tx_process_cqe(struct ib_wc *wc)
 	struct smc_wr_tx_pend pnd_snd;
 	struct smc_link *link;
 	u32 pnd_snd_idx;
-	int i;
 
 	link = wc->qp->qp_context;
 
@@ -115,14 +110,6 @@ static inline void smc_wr_tx_process_cqe(struct ib_wc *wc)
 	if (!test_and_clear_bit(pnd_snd_idx, link->wr_tx_mask))
 		return;
 	if (wc->status) {
-		for_each_set_bit(i, link->wr_tx_mask, link->wr_tx_cnt) {
-			/* clear full struct smc_wr_tx_pend including .priv */
-			memset(&link->wr_tx_pends[i], 0,
-			       sizeof(link->wr_tx_pends[i]));
-			memset(&link->wr_tx_bufs[i], 0,
-			       sizeof(link->wr_tx_bufs[i]));
-			clear_bit(i, link->wr_tx_mask);
-		}
 		/* terminate link */
 		smcr_link_down_cond_sched(link);
 	}
@@ -351,25 +338,6 @@ int smc_wr_reg_send(struct smc_link *link, struct ib_mr *mr)
 	return rc;
 }
 
-void smc_wr_tx_dismiss_slots(struct smc_link *link, u8 wr_tx_hdr_type,
-			     smc_wr_tx_filter filter,
-			     smc_wr_tx_dismisser dismisser,
-			     unsigned long data)
-{
-	struct smc_wr_tx_pend_priv *tx_pend;
-	struct smc_wr_rx_hdr *wr_tx;
-	int i;
-
-	for_each_set_bit(i, link->wr_tx_mask, link->wr_tx_cnt) {
-		wr_tx = (struct smc_wr_rx_hdr *)&link->wr_tx_bufs[i];
-		if (wr_tx->type != wr_tx_hdr_type)
-			continue;
-		tx_pend = &link->wr_tx_pends[i].priv;
-		if (filter(tx_pend, data))
-			dismisser(tx_pend);
-	}
-}
-
 /****************************** receive queue ********************************/
 
 int smc_wr_rx_register_handler(struct smc_wr_rx_handler *handler)
@@ -574,10 +542,7 @@ void smc_wr_free_link(struct smc_link *lnk)
 	smc_wr_wakeup_reg_wait(lnk);
 	smc_wr_wakeup_tx_wait(lnk);
 
-	if (smc_wr_tx_wait_no_pending_sends(lnk))
-		memset(lnk->wr_tx_mask, 0,
-		       BITS_TO_LONGS(SMC_WR_BUF_CNT) *
-						sizeof(*lnk->wr_tx_mask));
+	smc_wr_tx_wait_no_pending_sends(lnk);
 	wait_event(lnk->wr_reg_wait, (!atomic_read(&lnk->wr_reg_refcnt)));
 	wait_event(lnk->wr_tx_wait, (!atomic_read(&lnk->wr_tx_refcnt)));
 
diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 102d515757ee2..cb58e60078f57 100644
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -22,7 +22,6 @@
 #define SMC_WR_BUF_CNT 16	/* # of ctrl buffers per link */
 
 #define SMC_WR_TX_WAIT_FREE_SLOT_TIME	(10 * HZ)
-#define SMC_WR_TX_WAIT_PENDING_TIME	(5 * HZ)
 
 #define SMC_WR_TX_SIZE 44 /* actual size of wr_send data (<=SMC_WR_BUF_SIZE) */
 
@@ -122,7 +121,7 @@ void smc_wr_tx_dismiss_slots(struct smc_link *lnk, u8 wr_rx_hdr_type,
 			     smc_wr_tx_filter filter,
 			     smc_wr_tx_dismisser dismisser,
 			     unsigned long data);
-int smc_wr_tx_wait_no_pending_sends(struct smc_link *link);
+void smc_wr_tx_wait_no_pending_sends(struct smc_link *link);
 
 int smc_wr_rx_register_handler(struct smc_wr_rx_handler *handler);
 int smc_wr_rx_post_init(struct smc_link *link);
-- 
GitLab


From b7c9a1427b32723b583da6d44d833e9b246d4a94 Mon Sep 17 00:00:00 2001
From: James McLaughlin <james.mclaughlin@qsc.com>
Date: Fri, 17 Dec 2021 16:49:33 -0700
Subject: [PATCH 2495/4878] igc: Fix TX timestamp support for non-MSI-X
 platforms

[ Upstream commit f85846bbf43de38fb2c89fe7d2a085608c4eb25a ]

Time synchronization was not properly enabled on non-MSI-X platforms.

Fixes: 2c344ae24501 ("igc: Add support for TX timestamping")
Signed-off-by: James McLaughlin <james.mclaughlin@qsc.com>
Reviewed-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index cae090a072524..61cebb7df6bcb 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -4422,6 +4422,9 @@ static irqreturn_t igc_intr_msi(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+	if (icr & IGC_ICR_TS)
+		igc_tsync_interrupt(adapter);
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
@@ -4465,6 +4468,9 @@ static irqreturn_t igc_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
+	if (icr & IGC_ICR_TS)
+		igc_tsync_interrupt(adapter);
+
 	napi_schedule(&q_vector->napi);
 
 	return IRQ_HANDLED;
-- 
GitLab


From 61146008087a8b4cf639c8c00ca7574c894c8805 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sun, 26 Dec 2021 15:06:17 +0100
Subject: [PATCH 2496/4878] ionic: Initialize the 'lif->dbid_inuse' bitmap

[ Upstream commit 140c7bc7d1195750342ea0e6ab76179499ae7cd7 ]

When allocated, this bitmap is not initialized. Only the first bit is set a
few lines below.

Use bitmap_zalloc() to make sure that it is cleared before being used.

Fixes: 6461b446f2a0 ("ionic: Add interrupts and doorbells")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Link: https://lore.kernel.org/r/6a478eae0b5e6c63774e1f0ddb1a3f8c38fa8ade.1640527506.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 1b44155fa24b2..e95c09dc2c30d 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -2836,7 +2836,7 @@ int ionic_lif_init(struct ionic_lif *lif)
 		return -EINVAL;
 	}
 
-	lif->dbid_inuse = bitmap_alloc(lif->dbid_count, GFP_KERNEL);
+	lif->dbid_inuse = bitmap_zalloc(lif->dbid_count, GFP_KERNEL);
 	if (!lif->dbid_inuse) {
 		dev_err(dev, "Failed alloc doorbell id bitmap, aborting\n");
 		return -ENOMEM;
-- 
GitLab


From 78503589b1e013e0de5d76ee4fc02981d90d4583 Mon Sep 17 00:00:00 2001
From: Gal Pressman <gal@nvidia.com>
Date: Mon, 29 Nov 2021 11:08:41 +0200
Subject: [PATCH 2497/4878] net/mlx5e: Fix wrong features assignment in case of
 error

[ Upstream commit 992d8a4e38f0527f24e273ce3a9cd6dea1a6a436 ]

In case of an error in mlx5e_set_features(), 'netdev->features' must be
updated with the correct state of the device to indicate which features
were updated successfully.
To do that we maintain a copy of 'netdev->features' and update it after
successful feature changes, so we can assign it to back to
'netdev->features' if needed.

However, since not all netdev features are handled by the driver (e.g.
GRO/TSO/etc), some features may not be updated correctly in case of an
error updating another feature.

For example, while requesting to disable TSO (feature which is not
handled by the driver) and enable HW-GRO, if an error occurs during
HW-GRO enable, 'oper_features' will be assigned with 'netdev->features'
and HW-GRO turned off. TSO will remain enabled in such case, which is a
bug.

To solve that, instead of using 'netdev->features' as the baseline of
'oper_features' and changing it on set feature success, use 'features'
instead and update it in case of errors.

Fixes: 75b81ce719b7 ("net/mlx5e: Don't override netdev features field unless in error flow")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 3f5a2bb9b3c0b..2f6c3a5813ed1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3935,12 +3935,11 @@ static int set_feature_arfs(struct net_device *netdev, bool enable)
 
 static int mlx5e_handle_feature(struct net_device *netdev,
 				netdev_features_t *features,
-				netdev_features_t wanted_features,
 				netdev_features_t feature,
 				mlx5e_feature_handler feature_handler)
 {
-	netdev_features_t changes = wanted_features ^ netdev->features;
-	bool enable = !!(wanted_features & feature);
+	netdev_features_t changes = *features ^ netdev->features;
+	bool enable = !!(*features & feature);
 	int err;
 
 	if (!(changes & feature))
@@ -3948,22 +3947,22 @@ static int mlx5e_handle_feature(struct net_device *netdev,
 
 	err = feature_handler(netdev, enable);
 	if (err) {
+		MLX5E_SET_FEATURE(features, feature, !enable);
 		netdev_err(netdev, "%s feature %pNF failed, err %d\n",
 			   enable ? "Enable" : "Disable", &feature, err);
 		return err;
 	}
 
-	MLX5E_SET_FEATURE(features, feature, enable);
 	return 0;
 }
 
 int mlx5e_set_features(struct net_device *netdev, netdev_features_t features)
 {
-	netdev_features_t oper_features = netdev->features;
+	netdev_features_t oper_features = features;
 	int err = 0;
 
 #define MLX5E_HANDLE_FEATURE(feature, handler) \
-	mlx5e_handle_feature(netdev, &oper_features, features, feature, handler)
+	mlx5e_handle_feature(netdev, &oper_features, feature, handler)
 
 	err |= MLX5E_HANDLE_FEATURE(NETIF_F_LRO, set_feature_lro);
 	err |= MLX5E_HANDLE_FEATURE(NETIF_F_HW_VLAN_CTAG_FILTER,
-- 
GitLab


From 610af55f9fbead4bd3d5636fa048d1e981a4a90f Mon Sep 17 00:00:00 2001
From: wujianguo <wujianguo@chinatelecom.cn>
Date: Wed, 29 Dec 2021 18:58:10 +0800
Subject: [PATCH 2498/4878] selftests/net: udpgso_bench_tx: fix dst ip argument

[ Upstream commit 9c1952aeaa98b3cfc49e2a79cb2c7d6a674213e9 ]

udpgso_bench_tx call setup_sockaddr() for dest address before
parsing all arguments, if we specify "-p ${dst_port}" after "-D ${dst_ip}",
then ${dst_port} will be ignored, and using default cfg_port 8000.

This will cause test case "multiple GRO socks" failed in udpgro.sh.

Setup sockaddr after parsing all arguments.

Fixes: 3a687bef148d ("selftests: udp gso benchmark")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/ff620d9f-5b52-06ab-5286-44b945453002@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/udpgso_bench_tx.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/udpgso_bench_tx.c b/tools/testing/selftests/net/udpgso_bench_tx.c
index 17512a43885e7..f1fdaa2702913 100644
--- a/tools/testing/selftests/net/udpgso_bench_tx.c
+++ b/tools/testing/selftests/net/udpgso_bench_tx.c
@@ -419,6 +419,7 @@ static void usage(const char *filepath)
 
 static void parse_opts(int argc, char **argv)
 {
+	const char *bind_addr = NULL;
 	int max_len, hdrlen;
 	int c;
 
@@ -446,7 +447,7 @@ static void parse_opts(int argc, char **argv)
 			cfg_cpu = strtol(optarg, NULL, 0);
 			break;
 		case 'D':
-			setup_sockaddr(cfg_family, optarg, &cfg_dst_addr);
+			bind_addr = optarg;
 			break;
 		case 'l':
 			cfg_runtime_ms = strtoul(optarg, NULL, 10) * 1000;
@@ -492,6 +493,11 @@ static void parse_opts(int argc, char **argv)
 		}
 	}
 
+	if (!bind_addr)
+		bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+	setup_sockaddr(cfg_family, bind_addr, &cfg_dst_addr);
+
 	if (optind != argc)
 		usage(argv[0]);
 
-- 
GitLab


From 920932b20e0c33cb095e88dec16acd0d14986f50 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 29 Dec 2021 11:21:18 +0800
Subject: [PATCH 2499/4878] net/ncsi: check for error return from call to
 nla_put_u32

[ Upstream commit 92a34ab169f9eefe29cd420ce96b0a0a2a1da853 ]

As we can see from the comment of the nla_put() that it could return
-EMSGSIZE if the tailroom of the skb is insufficient.
Therefore, it should be better to check the return value of the
nla_put_u32 and return the error code if error accurs.
Also, there are many other functions have the same problem, and if this
patch is correct, I will commit a new version to fix all.

Fixes: 955dc68cb9b2 ("net/ncsi: Add generic netlink family")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211229032118.1706294-1-jiasheng@iscas.ac.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ncsi/ncsi-netlink.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index bb5f1650f11cb..c189b4c8a1823 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -112,7 +112,11 @@ static int ncsi_write_package_info(struct sk_buff *skb,
 		pnest = nla_nest_start_noflag(skb, NCSI_PKG_ATTR);
 		if (!pnest)
 			return -ENOMEM;
-		nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
+		rc = nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
+		if (rc) {
+			nla_nest_cancel(skb, pnest);
+			return rc;
+		}
 		if ((0x1 << np->id) == ndp->package_whitelist)
 			nla_put_flag(skb, NCSI_PKG_ATTR_FORCED);
 		cnest = nla_nest_start_noflag(skb, NCSI_PKG_ATTR_CHANNEL_LIST);
-- 
GitLab


From 51c94d8fbd09fe314baac7d49d7173e56e0df048 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 30 Dec 2021 12:26:27 +0000
Subject: [PATCH 2500/4878] fsl/fman: Fix missing put_device() call in
 fman_port_probe

[ Upstream commit bf2b09fedc17248b315f80fb249087b7d28a69a6 ]

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the and error handling paths.

Fixes: 18a6c85fcc78 ("fsl/fman: Add FMan Port Support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/fman/fman_port.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c
index d9baac0dbc7d0..4c9d05c45c033 100644
--- a/drivers/net/ethernet/freescale/fman/fman_port.c
+++ b/drivers/net/ethernet/freescale/fman/fman_port.c
@@ -1805,7 +1805,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 	fman = dev_get_drvdata(&fm_pdev->dev);
 	if (!fman) {
 		err = -EINVAL;
-		goto return_err;
+		goto put_device;
 	}
 
 	err = of_property_read_u32(port_node, "cell-index", &val);
@@ -1813,7 +1813,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 		dev_err(port->dev, "%s: reading cell-index for %pOF failed\n",
 			__func__, port_node);
 		err = -EINVAL;
-		goto return_err;
+		goto put_device;
 	}
 	port_id = (u8)val;
 	port->dts_params.id = port_id;
@@ -1847,7 +1847,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 	}  else {
 		dev_err(port->dev, "%s: Illegal port type\n", __func__);
 		err = -EINVAL;
-		goto return_err;
+		goto put_device;
 	}
 
 	port->dts_params.type = port_type;
@@ -1861,7 +1861,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 			dev_err(port->dev, "%s: incorrect qman-channel-id\n",
 				__func__);
 			err = -EINVAL;
-			goto return_err;
+			goto put_device;
 		}
 		port->dts_params.qman_channel_id = qman_channel_id;
 	}
@@ -1871,7 +1871,7 @@ static int fman_port_probe(struct platform_device *of_dev)
 		dev_err(port->dev, "%s: of_address_to_resource() failed\n",
 			__func__);
 		err = -ENOMEM;
-		goto return_err;
+		goto put_device;
 	}
 
 	port->dts_params.fman = fman;
@@ -1896,6 +1896,8 @@ static int fman_port_probe(struct platform_device *of_dev)
 
 	return 0;
 
+put_device:
+	put_device(&fm_pdev->dev);
 return_err:
 	of_node_put(port_node);
 free_port:
-- 
GitLab


From 8d31cbab4c295d7010ebb729e9d02d0e9cece18f Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Fri, 31 Dec 2021 01:47:50 +0300
Subject: [PATCH 2501/4878] i2c: validate user data in compat ioctl

[ Upstream commit bb436283e25aaf1533ce061605d23a9564447bdf ]

Wrong user data may cause warning in i2c_transfer(), ex: zero msgs.
Userspace should not be able to trigger warnings, so this patch adds
validation checks for user data in compact ioctl to prevent reported
warnings

Reported-and-tested-by: syzbot+e417648b303855b91d8a@syzkaller.appspotmail.com
Fixes: 7d5cb45655f2 ("i2c compat ioctls: move to ->compat_ioctl()")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/i2c-dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index f358120d59b38..dafad891998ec 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -536,6 +536,9 @@ static long compat_i2cdev_ioctl(struct file *file, unsigned int cmd, unsigned lo
 				   sizeof(rdwr_arg)))
 			return -EFAULT;
 
+		if (!rdwr_arg.msgs || rdwr_arg.nmsgs == 0)
+			return -EINVAL;
+
 		if (rdwr_arg.nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
 			return -EINVAL;
 
-- 
GitLab


From 818c9e0a04dff8fdec3ff70afcd25b945d8621d0 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Sun, 26 Dec 2021 13:03:47 +0100
Subject: [PATCH 2502/4878] nfc: uapi: use kernel size_t to fix user-space
 builds
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 79b69a83705e621b258ac6d8ae6d3bfdb4b930aa upstream.

Fix user-space builds if it includes /usr/include/linux/nfc.h before
some of other headers:

  /usr/include/linux/nfc.h:281:9: error: unknown type name ‘size_t’
    281 |         size_t service_name_len;
        |         ^~~~~~

Fixes: d646960f7986 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/nfc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index f6e3c8c9c7449..bb94aac5636cb 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -278,7 +278,7 @@ struct sockaddr_nfc_llcp {
 	__u8 dsap; /* Destination SAP, if known */
 	__u8 ssap; /* Source SAP to be bound to */
 	char service_name[NFC_LLCP_MAX_SERVICE_NAME]; /* Service name URI */;
-	size_t service_name_len;
+	__kernel_size_t service_name_len;
 };
 
 /* NFC socket protocols */
-- 
GitLab


From a0f3ac399ef586cbb9660dec10c81477bc586fb8 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Sun, 26 Dec 2021 16:01:27 +0300
Subject: [PATCH 2503/4878] uapi: fix linux/nfc.h userspace compilation errors

commit 7175f02c4e5f5a9430113ab9ca0fd0ce98b28a51 upstream.

Replace sa_family_t with __kernel_sa_family_t to fix the following
linux/nfc.h userspace compilation errors:

/usr/include/linux/nfc.h:266:2: error: unknown type name 'sa_family_t'
  sa_family_t sa_family;
/usr/include/linux/nfc.h:274:2: error: unknown type name 'sa_family_t'
  sa_family_t sa_family;

Fixes: 23b7869c0fd0 ("NFC: add the NFC socket raw protocol")
Fixes: d646960f7986 ("NFC: Initial LLCP support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/nfc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index bb94aac5636cb..4fa4e979e948a 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -263,7 +263,7 @@ enum nfc_sdp_attr {
 #define NFC_SE_ENABLED  0x1
 
 struct sockaddr_nfc {
-	sa_family_t sa_family;
+	__kernel_sa_family_t sa_family;
 	__u32 dev_idx;
 	__u32 target_idx;
 	__u32 nfc_protocol;
@@ -271,7 +271,7 @@ struct sockaddr_nfc {
 
 #define NFC_LLCP_MAX_SERVICE_NAME 63
 struct sockaddr_nfc_llcp {
-	sa_family_t sa_family;
+	__kernel_sa_family_t sa_family;
 	__u32 dev_idx;
 	__u32 target_idx;
 	__u32 nfc_protocol;
-- 
GitLab


From 28863ffe21ff711d5109e3c208676258bdec3a1f Mon Sep 17 00:00:00 2001
From: chen gong <curry.gong@amd.com>
Date: Thu, 9 Dec 2021 19:47:10 +0800
Subject: [PATCH 2504/4878] drm/amdgpu: When the VCN(1.0) block is suspended,
 powergating is explicitly enabled

commit b7865173cf6ae59942e2c69326a06e1c1df5ecf6 upstream.

Play a video on the raven (or PCO, raven2) platform, and then do the S3
test. When resume, the following error will be reported:

amdgpu 0000:02:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring
vcn_dec test failed (-110)
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block
<vcn_v1_0> failed -110
amdgpu 0000:02:00.0: amdgpu: amdgpu_device_ip_resume failed (-110).
PM: dpm_run_callback(): pci_pm_resume+0x0/0x90 returns -110

[why]
When playing the video: The power state flag of the vcn block is set to
POWER_STATE_ON.

When doing suspend: There is no change to the power state flag of the
vcn block, it is still POWER_STATE_ON.

When doing resume: Need to open the power gate of the vcn block and set
the power state flag of the VCN block to POWER_STATE_ON.
But at this time, the power state flag of the vcn block is already
POWER_STATE_ON. The power status flag check in the "8f2cdef drm/amd/pm:
avoid duplicate powergate/ungate setting" patch will return the
amdgpu_dpm_set_powergating_by_smu function directly.
As a result, the gate of the power was not opened, causing the
subsequent ring test to fail.

[how]
In the suspend function of the vcn block, explicitly change the power
state flag of the vcn block to POWER_STATE_OFF.

BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1828
Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index e8737fa438f06..7115f6dbb1372 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -254,6 +254,13 @@ static int vcn_v1_0_suspend(void *handle)
 {
 	int r;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	bool idle_work_unexecuted;
+
+	idle_work_unexecuted = cancel_delayed_work_sync(&adev->vcn.idle_work);
+	if (idle_work_unexecuted) {
+		if (adev->pm.dpm_enabled)
+			amdgpu_dpm_enable_uvd(adev, false);
+	}
 
 	r = vcn_v1_0_hw_fini(adev);
 	if (r)
-- 
GitLab


From b8553330a07749e488d143b5704adf1042fd7c0a Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 15 Dec 2021 22:13:56 -0500
Subject: [PATCH 2505/4878] drm/amdgpu: add support for IP discovery gc_info
 table v2

commit 5e713c6afa34c0fd6f113bf7bb1c2847172d7b20 upstream.

Used on gfx9 based systems. Fixes incorrect CU counts reported
in the kernel log.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1833
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 76 +++++++++++++------
 drivers/gpu/drm/amd/include/discovery.h       | 49 ++++++++++++
 2 files changed, 103 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index bfb95143ba5e8..ec6bfa316daa3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -372,10 +372,15 @@ int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id,
 	return -EINVAL;
 }
 
+union gc_info {
+	struct gc_info_v1_0 v1;
+	struct gc_info_v2_0 v2;
+};
+
 int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev)
 {
 	struct binary_header *bhdr;
-	struct gc_info_v1_0 *gc_info;
+	union gc_info *gc_info;
 
 	if (!adev->mman.discovery_bin) {
 		DRM_ERROR("ip discovery uninitialized\n");
@@ -383,27 +388,54 @@ int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev)
 	}
 
 	bhdr = (struct binary_header *)adev->mman.discovery_bin;
-	gc_info = (struct gc_info_v1_0 *)(adev->mman.discovery_bin +
+	gc_info = (union gc_info *)(adev->mman.discovery_bin +
 			le16_to_cpu(bhdr->table_list[GC].offset));
-
-	adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->gc_num_se);
-	adev->gfx.config.max_cu_per_sh = 2 * (le32_to_cpu(gc_info->gc_num_wgp0_per_sa) +
-					      le32_to_cpu(gc_info->gc_num_wgp1_per_sa));
-	adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->gc_num_sa_per_se);
-	adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->gc_num_rb_per_se);
-	adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->gc_num_gl2c);
-	adev->gfx.config.max_gprs = le32_to_cpu(gc_info->gc_num_gprs);
-	adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->gc_num_max_gs_thds);
-	adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->gc_gs_table_depth);
-	adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->gc_gsprim_buff_depth);
-	adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->gc_double_offchip_lds_buffer);
-	adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->gc_wave_size);
-	adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->gc_max_waves_per_simd);
-	adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->gc_max_scratch_slots_per_cu);
-	adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->gc_lds_size);
-	adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->gc_num_sc_per_se) /
-					 le32_to_cpu(gc_info->gc_num_sa_per_se);
-	adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->gc_num_packer_per_sc);
-
+	switch (gc_info->v1.header.version_major) {
+	case 1:
+		adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->v1.gc_num_se);
+		adev->gfx.config.max_cu_per_sh = 2 * (le32_to_cpu(gc_info->v1.gc_num_wgp0_per_sa) +
+						      le32_to_cpu(gc_info->v1.gc_num_wgp1_per_sa));
+		adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->v1.gc_num_sa_per_se);
+		adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->v1.gc_num_rb_per_se);
+		adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->v1.gc_num_gl2c);
+		adev->gfx.config.max_gprs = le32_to_cpu(gc_info->v1.gc_num_gprs);
+		adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->v1.gc_num_max_gs_thds);
+		adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->v1.gc_gs_table_depth);
+		adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->v1.gc_gsprim_buff_depth);
+		adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->v1.gc_double_offchip_lds_buffer);
+		adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->v1.gc_wave_size);
+		adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->v1.gc_max_waves_per_simd);
+		adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->v1.gc_max_scratch_slots_per_cu);
+		adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->v1.gc_lds_size);
+		adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->v1.gc_num_sc_per_se) /
+			le32_to_cpu(gc_info->v1.gc_num_sa_per_se);
+		adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->v1.gc_num_packer_per_sc);
+		break;
+	case 2:
+		adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->v2.gc_num_se);
+		adev->gfx.config.max_cu_per_sh = le32_to_cpu(gc_info->v2.gc_num_cu_per_sh);
+		adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->v2.gc_num_sh_per_se);
+		adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->v2.gc_num_rb_per_se);
+		adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->v2.gc_num_tccs);
+		adev->gfx.config.max_gprs = le32_to_cpu(gc_info->v2.gc_num_gprs);
+		adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->v2.gc_num_max_gs_thds);
+		adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->v2.gc_gs_table_depth);
+		adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->v2.gc_gsprim_buff_depth);
+		adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->v2.gc_double_offchip_lds_buffer);
+		adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->v2.gc_wave_size);
+		adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->v2.gc_max_waves_per_simd);
+		adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->v2.gc_max_scratch_slots_per_cu);
+		adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->v2.gc_lds_size);
+		adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->v2.gc_num_sc_per_se) /
+			le32_to_cpu(gc_info->v2.gc_num_sh_per_se);
+		adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->v2.gc_num_packer_per_sc);
+		break;
+	default:
+		dev_err(adev->dev,
+			"Unhandled GC info table %d.%d\n",
+			gc_info->v1.header.version_major,
+			gc_info->v1.header.version_minor);
+		return -EINVAL;
+	}
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/include/discovery.h b/drivers/gpu/drm/amd/include/discovery.h
index 7ec4331e67f26..a486769b66c6a 100644
--- a/drivers/gpu/drm/amd/include/discovery.h
+++ b/drivers/gpu/drm/amd/include/discovery.h
@@ -143,6 +143,55 @@ struct gc_info_v1_0 {
 	uint32_t gc_num_gl2a;
 };
 
+struct gc_info_v1_1 {
+	struct gpu_info_header header;
+
+	uint32_t gc_num_se;
+	uint32_t gc_num_wgp0_per_sa;
+	uint32_t gc_num_wgp1_per_sa;
+	uint32_t gc_num_rb_per_se;
+	uint32_t gc_num_gl2c;
+	uint32_t gc_num_gprs;
+	uint32_t gc_num_max_gs_thds;
+	uint32_t gc_gs_table_depth;
+	uint32_t gc_gsprim_buff_depth;
+	uint32_t gc_parameter_cache_depth;
+	uint32_t gc_double_offchip_lds_buffer;
+	uint32_t gc_wave_size;
+	uint32_t gc_max_waves_per_simd;
+	uint32_t gc_max_scratch_slots_per_cu;
+	uint32_t gc_lds_size;
+	uint32_t gc_num_sc_per_se;
+	uint32_t gc_num_sa_per_se;
+	uint32_t gc_num_packer_per_sc;
+	uint32_t gc_num_gl2a;
+	uint32_t gc_num_tcp_per_sa;
+	uint32_t gc_num_sdp_interface;
+	uint32_t gc_num_tcps;
+};
+
+struct gc_info_v2_0 {
+	struct gpu_info_header header;
+
+	uint32_t gc_num_se;
+	uint32_t gc_num_cu_per_sh;
+	uint32_t gc_num_sh_per_se;
+	uint32_t gc_num_rb_per_se;
+	uint32_t gc_num_tccs;
+	uint32_t gc_num_gprs;
+	uint32_t gc_num_max_gs_thds;
+	uint32_t gc_gs_table_depth;
+	uint32_t gc_gsprim_buff_depth;
+	uint32_t gc_parameter_cache_depth;
+	uint32_t gc_double_offchip_lds_buffer;
+	uint32_t gc_wave_size;
+	uint32_t gc_max_waves_per_simd;
+	uint32_t gc_max_scratch_slots_per_cu;
+	uint32_t gc_lds_size;
+	uint32_t gc_num_sc_per_se;
+	uint32_t gc_num_packer_per_sc;
+};
+
 typedef struct harvest_info_header {
 	uint32_t signature; /* Table Signature */
 	uint32_t version;   /* Table Version */
-- 
GitLab


From 1933fe8ce712989df8e94966e21d1752fe19c257 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Tue, 21 Dec 2021 13:28:25 +0200
Subject: [PATCH 2506/4878] xhci: Fresco FL1100 controller should not have
 BROKEN_MSI quirk set.

commit e4844092581ceec22489b66c42edc88bc6079783 upstream.

The Fresco Logic FL1100 controller needs the TRUST_TX_LENGTH quirk like
other Fresco controllers, but should not have the BROKEN_MSI quirks set.

BROKEN_MSI quirk causes issues in detecting usb drives connected to docks
with this FL1100 controller.
The BROKEN_MSI flag was apparently accidentally set together with the
TRUST_TX_LENGTH quirk

Original patch went to stable so this should go there as well.

Fixes: ea0f69d82119 ("xhci: Enable trust tx length quirk for Fresco FL11 USB controller")
Cc: stable@vger.kernel.org
cc: Nikolay Martynov <mar.kolya@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20211221112825.54690-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c9133df71e52b..dafb58f05c9fb 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -122,7 +122,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	/* Look for vendor-specific quirks */
 	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
 			(pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
-			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 ||
 			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) {
 		if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
 				pdev->revision == 0x0) {
@@ -157,6 +156,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 			pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 
+	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
+			pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100)
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+
 	if (pdev->vendor == PCI_VENDOR_ID_NEC)
 		xhci->quirks |= XHCI_NEC_HOST;
 
-- 
GitLab


From 1c4ace3e6b8575745c50dca9e76e0021e697d645 Mon Sep 17 00:00:00 2001
From: Vincent Pelletier <plr.vincent@gmail.com>
Date: Sat, 18 Dec 2021 02:18:40 +0000
Subject: [PATCH 2507/4878] usb: gadget: f_fs: Clear ffs_eventfd in
 ffs_data_clear.

commit b1e0887379422975f237d43d8839b751a6bcf154 upstream.

ffs_data_clear is indirectly called from both ffs_fs_kill_sb and
ffs_ep0_release, so it ends up being called twice when userland closes ep0
and then unmounts f_fs.
If userland provided an eventfd along with function's USB descriptors, it
ends up calling eventfd_ctx_put as many times, causing a refcount
underflow.
NULL-ify ffs_eventfd to prevent these extraneous eventfd_ctx_put calls.

Also, set epfiles to NULL right after de-allocating it, for readability.

For completeness, ffs_data_clear actually ends up being called thrice, the
last call being before the whole ffs structure gets freed, so when this
specific sequence happens there is a second underflow happening (but not
being reported):

/sys/kernel/debug/tracing# modprobe usb_f_fs
/sys/kernel/debug/tracing# echo ffs_data_clear > set_ftrace_filter
/sys/kernel/debug/tracing# echo function > current_tracer
/sys/kernel/debug/tracing# echo 1 > tracing_on
(setup gadget, run and kill function userland process, teardown gadget)
/sys/kernel/debug/tracing# echo 0 > tracing_on
/sys/kernel/debug/tracing# cat trace
 smartcard-openp-436     [000] .....  1946.208786: ffs_data_clear <-ffs_data_closed
 smartcard-openp-431     [000] .....  1946.279147: ffs_data_clear <-ffs_data_closed
 smartcard-openp-431     [000] .n...  1946.905512: ffs_data_clear <-ffs_data_put

Warning output corresponding to above trace:
[ 1946.284139] WARNING: CPU: 0 PID: 431 at lib/refcount.c:28 refcount_warn_saturate+0x110/0x15c
[ 1946.293094] refcount_t: underflow; use-after-free.
[ 1946.298164] Modules linked in: usb_f_ncm(E) u_ether(E) usb_f_fs(E) hci_uart(E) btqca(E) btrtl(E) btbcm(E) btintel(E) bluetooth(E) nls_ascii(E) nls_cp437(E) vfat(E) fat(E) bcm2835_v4l2(CE) bcm2835_mmal_vchiq(CE) videobuf2_vmalloc(E) videobuf2_memops(E) sha512_generic(E) videobuf2_v4l2(E) sha512_arm(E) videobuf2_common(E) videodev(E) cpufreq_dt(E) snd_bcm2835(CE) brcmfmac(E) mc(E) vc4(E) ctr(E) brcmutil(E) snd_soc_core(E) snd_pcm_dmaengine(E) drbg(E) snd_pcm(E) snd_timer(E) snd(E) soundcore(E) drm_kms_helper(E) cec(E) ansi_cprng(E) rc_core(E) syscopyarea(E) raspberrypi_cpufreq(E) sysfillrect(E) sysimgblt(E) cfg80211(E) max17040_battery(OE) raspberrypi_hwmon(E) fb_sys_fops(E) regmap_i2c(E) ecdh_generic(E) rfkill(E) ecc(E) bcm2835_rng(E) rng_core(E) vchiq(CE) leds_gpio(E) libcomposite(E) fuse(E) configfs(E) ip_tables(E) x_tables(E) autofs4(E) ext4(E) crc16(E) mbcache(E) jbd2(E) crc32c_generic(E) sdhci_iproc(E) sdhci_pltfm(E) sdhci(E)
[ 1946.399633] CPU: 0 PID: 431 Comm: smartcard-openp Tainted: G         C OE     5.15.0-1-rpi #1  Debian 5.15.3-1
[ 1946.417950] Hardware name: BCM2835
[ 1946.425442] Backtrace:
[ 1946.432048] [<c08d60a0>] (dump_backtrace) from [<c08d62ec>] (show_stack+0x20/0x24)
[ 1946.448226]  r7:00000009 r6:0000001c r5:c04a948c r4:c0a64e2c
[ 1946.458412] [<c08d62cc>] (show_stack) from [<c08d9ae0>] (dump_stack+0x28/0x30)
[ 1946.470380] [<c08d9ab8>] (dump_stack) from [<c0123500>] (__warn+0xe8/0x154)
[ 1946.482067]  r5:c04a948c r4:c0a71dc8
[ 1946.490184] [<c0123418>] (__warn) from [<c08d6948>] (warn_slowpath_fmt+0xa0/0xe4)
[ 1946.506758]  r7:00000009 r6:0000001c r5:c0a71dc8 r4:c0a71e04
[ 1946.517070] [<c08d68ac>] (warn_slowpath_fmt) from [<c04a948c>] (refcount_warn_saturate+0x110/0x15c)
[ 1946.535309]  r8:c0100224 r7:c0dfcb84 r6:ffffffff r5:c3b84c00 r4:c24a17c0
[ 1946.546708] [<c04a937c>] (refcount_warn_saturate) from [<c0380134>] (eventfd_ctx_put+0x48/0x74)
[ 1946.564476] [<c03800ec>] (eventfd_ctx_put) from [<bf5464e8>] (ffs_data_clear+0xd0/0x118 [usb_f_fs])
[ 1946.582664]  r5:c3b84c00 r4:c2695b00
[ 1946.590668] [<bf546418>] (ffs_data_clear [usb_f_fs]) from [<bf547cc0>] (ffs_data_closed+0x9c/0x150 [usb_f_fs])
[ 1946.609608]  r5:bf54d014 r4:c2695b00
[ 1946.617522] [<bf547c24>] (ffs_data_closed [usb_f_fs]) from [<bf547da0>] (ffs_fs_kill_sb+0x2c/0x30 [usb_f_fs])
[ 1946.636217]  r7:c0dfcb84 r6:c3a12260 r5:bf54d014 r4:c229f000
[ 1946.646273] [<bf547d74>] (ffs_fs_kill_sb [usb_f_fs]) from [<c0326d50>] (deactivate_locked_super+0x54/0x9c)
[ 1946.664893]  r5:bf54d014 r4:c229f000
[ 1946.672921] [<c0326cfc>] (deactivate_locked_super) from [<c0326df8>] (deactivate_super+0x60/0x64)
[ 1946.690722]  r5:c2a09000 r4:c229f000
[ 1946.698706] [<c0326d98>] (deactivate_super) from [<c0349a28>] (cleanup_mnt+0xe4/0x14c)
[ 1946.715553]  r5:c2a09000 r4:00000000
[ 1946.723528] [<c0349944>] (cleanup_mnt) from [<c0349b08>] (__cleanup_mnt+0x1c/0x20)
[ 1946.739922]  r7:c0dfcb84 r6:c3a12260 r5:c3a126fc r4:00000000
[ 1946.750088] [<c0349aec>] (__cleanup_mnt) from [<c0143d10>] (task_work_run+0x84/0xb8)
[ 1946.766602] [<c0143c8c>] (task_work_run) from [<c010bdc8>] (do_work_pending+0x470/0x56c)
[ 1946.783540]  r7:5ac3c35a r6:c0d0424c r5:c200bfb0 r4:c200a000
[ 1946.793614] [<c010b958>] (do_work_pending) from [<c01000c0>] (slow_work_pending+0xc/0x20)
[ 1946.810553] Exception stack(0xc200bfb0 to 0xc200bff8)
[ 1946.820129] bfa0:                                     00000000 00000000 000000aa b5e21430
[ 1946.837104] bfc0: bef867a0 00000001 bef86840 00000034 bef86838 bef86790 bef86794 bef867a0
[ 1946.854125] bfe0: 00000000 bef86798 b67b7a1c b6d626a4 60000010 b5a23760
[ 1946.865335]  r10:00000000 r9:c200a000 r8:c0100224 r7:00000034 r6:bef86840 r5:00000001
[ 1946.881914]  r4:bef867a0
[ 1946.888793] ---[ end trace 7387f2a9725b28d0 ]---

Fixes: 5e33f6fdf735 ("usb: gadget: ffs: add eventfd notification about ffs events")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Link: https://lore.kernel.org/r/f79eeea29f3f98de6782a064ec0f7351ad2f598f.1639793920.git.plr.vincent@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/f_fs.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 725e35167837e..cbb7947f366f9 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1772,11 +1772,15 @@ static void ffs_data_clear(struct ffs_data *ffs)
 
 	BUG_ON(ffs->gadget);
 
-	if (ffs->epfiles)
+	if (ffs->epfiles) {
 		ffs_epfiles_destroy(ffs->epfiles, ffs->eps_count);
+		ffs->epfiles = NULL;
+	}
 
-	if (ffs->ffs_eventfd)
+	if (ffs->ffs_eventfd) {
 		eventfd_ctx_put(ffs->ffs_eventfd);
+		ffs->ffs_eventfd = NULL;
+	}
 
 	kfree(ffs->raw_descs_data);
 	kfree(ffs->raw_strings);
@@ -1789,7 +1793,6 @@ static void ffs_data_reset(struct ffs_data *ffs)
 
 	ffs_data_clear(ffs);
 
-	ffs->epfiles = NULL;
 	ffs->raw_descs_data = NULL;
 	ffs->raw_descs = NULL;
 	ffs->raw_strings = NULL;
-- 
GitLab


From f10b01c48f856d5fc11fbef271e1bd9abcdf0f0d Mon Sep 17 00:00:00 2001
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Sat, 18 Dec 2021 17:57:47 +0800
Subject: [PATCH 2508/4878] usb: mtu3: add memory barrier before set GPD's HWO

commit a7aae769ca626819a7f9f078ebdc69a8a1b00c81 upstream.

There is a seldom issue that the controller access invalid address
and trigger devapc or emimpu violation. That is due to memory access
is out of order and cause gpd data is not correct.
Add mb() to prohibit compiler or cpu from reordering to make sure GPD
is fully written before setting its HWO.

Fixes: 48e0d3735aa5 ("usb: mtu3: supports new QMU format")
Cc: stable@vger.kernel.org
Reported-by: Eddie Hung <eddie.hung@mediatek.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-2-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/mtu3/mtu3_qmu.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c
index 3f414f91b5899..2ea3157ddb6e2 100644
--- a/drivers/usb/mtu3/mtu3_qmu.c
+++ b/drivers/usb/mtu3/mtu3_qmu.c
@@ -273,6 +273,8 @@ static int mtu3_prepare_tx_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq)
 			gpd->dw3_info |= cpu_to_le32(GPD_EXT_FLAG_ZLP);
 	}
 
+	/* prevent reorder, make sure GPD's HWO is set last */
+	mb();
 	gpd->dw0_info |= cpu_to_le32(GPD_FLAGS_IOC | GPD_FLAGS_HWO);
 
 	mreq->gpd = gpd;
@@ -306,6 +308,8 @@ static int mtu3_prepare_rx_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq)
 	gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
 	ext_addr |= GPD_EXT_NGP(mtu, upper_32_bits(enq_dma));
 	gpd->dw3_info = cpu_to_le32(ext_addr);
+	/* prevent reorder, make sure GPD's HWO is set last */
+	mb();
 	gpd->dw0_info |= cpu_to_le32(GPD_FLAGS_IOC | GPD_FLAGS_HWO);
 
 	mreq->gpd = gpd;
@@ -445,7 +449,8 @@ static void qmu_tx_zlp_error_handler(struct mtu3 *mtu, u8 epnum)
 		return;
 	}
 	mtu3_setbits(mbase, MU3D_EP_TXCR0(mep->epnum), TX_TXPKTRDY);
-
+	/* prevent reorder, make sure GPD's HWO is set last */
+	mb();
 	/* by pass the current GDP */
 	gpd_current->dw0_info |= cpu_to_le32(GPD_FLAGS_BPS | GPD_FLAGS_HWO);
 
-- 
GitLab


From 3b6efe0b7ba03cc2acf0694b46d6ff33c5b4c295 Mon Sep 17 00:00:00 2001
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Sat, 18 Dec 2021 17:57:48 +0800
Subject: [PATCH 2509/4878] usb: mtu3: fix list_head check warning

commit 8c313e3bfd9adae8d5c4ba1cc696dcbc86fbf9bf upstream.

This is caused by uninitialization of list_head.

BUG: KASAN: use-after-free in __list_del_entry_valid+0x34/0xe4

Call trace:
dump_backtrace+0x0/0x298
show_stack+0x24/0x34
dump_stack+0x130/0x1a8
print_address_description+0x88/0x56c
__kasan_report+0x1b8/0x2a0
kasan_report+0x14/0x20
__asan_load8+0x9c/0xa0
__list_del_entry_valid+0x34/0xe4
mtu3_req_complete+0x4c/0x300 [mtu3]
mtu3_gadget_stop+0x168/0x448 [mtu3]
usb_gadget_unregister_driver+0x204/0x3a0
unregister_gadget_item+0x44/0xa4

Fixes: 83374e035b62 ("usb: mtu3: add tracepoints to help debug")
Cc: stable@vger.kernel.org
Reported-by: Yuwen Ng <yuwen.ng@mediatek.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-3-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/mtu3/mtu3_gadget.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 0b3aa7c65857a..4ace953278375 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -235,6 +235,7 @@ struct usb_request *mtu3_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
 	mreq->request.dma = DMA_ADDR_INVALID;
 	mreq->epnum = mep->epnum;
 	mreq->mep = mep;
+	INIT_LIST_HEAD(&mreq->list);
 	trace_mtu3_alloc_request(mreq);
 
 	return &mreq->request;
-- 
GitLab


From a6e26251dd3ab4690dfd8a7783416a847975d9d5 Mon Sep 17 00:00:00 2001
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Sat, 18 Dec 2021 17:57:49 +0800
Subject: [PATCH 2510/4878] usb: mtu3: set interval of FS intr and isoc
 endpoint

commit 43f3b8cbcf93da7c2755af4a543280c31f4adf16 upstream.

Add support to set interval also for FS intr and isoc endpoint.

Fixes: 4d79e042ed8b ("usb: mtu3: add support for usb3.1 IP")
Cc: stable@vger.kernel.org
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-4-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/mtu3/mtu3_gadget.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 4ace953278375..a3e1105c5c662 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -92,6 +92,13 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
 			interval = clamp_val(interval, 1, 16) - 1;
 			mult = usb_endpoint_maxp_mult(desc) - 1;
 		}
+		break;
+	case USB_SPEED_FULL:
+		if (usb_endpoint_xfer_isoc(desc))
+			interval = clamp_val(desc->bInterval, 1, 16);
+		else if (usb_endpoint_xfer_int(desc))
+			interval = clamp_val(desc->bInterval, 1, 255);
+
 		break;
 	default:
 		break; /*others are ignored */
-- 
GitLab


From 1cb8444f3114f0bb2f6e3bcadcf09aa4a28425d4 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Mon, 20 Dec 2021 11:01:50 -0800
Subject: [PATCH 2511/4878] binder: fix async_free_space accounting for empty
 parcels

commit cfd0d84ba28c18b531648c9d4a35ecca89ad9901 upstream.

In 4.13, commit 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
fixed a kernel structure visibility issue. As part of that patch,
sizeof(void *) was used as the buffer size for 0-length data payloads so
the driver could detect abusive clients sending 0-length asynchronous
transactions to a server by enforcing limits on async_free_size.

Unfortunately, on the "free" side, the accounting of async_free_space
did not add the sizeof(void *) back. The result was that up to 8-bytes of
async_free_space were leaked on every async transaction of 8-bytes or
less.  These small transactions are uncommon, so this accounting issue
has gone undetected for several years.

The fix is to use "buffer_size" (the allocated buffer size) instead of
"size" (the logical buffer size) when updating the async_free_space
during the free operation. These are the same except for this
corner case of asynchronous transactions with payloads < 8 bytes.

Fixes: 74310e06be4d ("android: binder: Move buffer out of area shared with user space")
Signed-off-by: Todd Kjos <tkjos@google.com>
Cc: stable@vger.kernel.org # 4.14+
Link: https://lore.kernel.org/r/20211220190150.2107077-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/android/binder_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 7caf74ad24053..95ca4f934d283 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -662,7 +662,7 @@ static void binder_free_buf_locked(struct binder_alloc *alloc,
 	BUG_ON(buffer->user_data > alloc->buffer + alloc->buffer_size);
 
 	if (buffer->async_transaction) {
-		alloc->free_async_space += size + sizeof(struct binder_buffer);
+		alloc->free_async_space += buffer_size + sizeof(struct binder_buffer);
 
 		binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
 			     "%d: binder_free_buf size %zd async free %zd\n",
-- 
GitLab


From 2a4f551dec1a897c10ccc1a525232ec41b26de80 Mon Sep 17 00:00:00 2001
From: Alexey Makhalov <amakhalov@vmware.com>
Date: Mon, 20 Dec 2021 11:05:14 -0800
Subject: [PATCH 2512/4878] scsi: vmw_pvscsi: Set residual data length
 conditionally

commit 142c779d05d1fef75134c3cb63f52ccbc96d9e1f upstream.

The PVSCSI implementation in the VMware hypervisor under specific
configuration ("SCSI Bus Sharing" set to "Physical") returns zero dataLen
in the completion descriptor for READ CAPACITY(16). As a result, the kernel
can not detect proper disk geometry. This can be recognized by the kernel
message:

  [ 0.776588] sd 1:0:0:0: [sdb] Sector size 0 reported, assuming 512.

The PVSCSI implementation in QEMU does not set dataLen at all, keeping it
zeroed. This leads to a boot hang as was reported by Shmulik Ladkani.

It is likely that the controller returns the garbage at the end of the
buffer. Residual length should be set by the driver in that case. The SCSI
layer will erase corresponding data. See commit bdb2b8cab439 ("[SCSI] erase
invalid data returned by device") for details.

Commit e662502b3a78 ("scsi: vmw_pvscsi: Set correct residual data length")
introduced the issue by setting residual length unconditionally, causing
the SCSI layer to erase the useful payload beyond dataLen when this value
is returned as 0.

As a result, considering existing issues in implementations of PVSCSI
controllers, we do not want to call scsi_set_resid() when dataLen ==
0. Calling scsi_set_resid() has no effect if dataLen equals buffer length.

Link: https://lore.kernel.org/lkml/20210824120028.30d9c071@blondie/
Link: https://lore.kernel.org/r/20211220190514.55935-1-amakhalov@vmware.com
Fixes: e662502b3a78 ("scsi: vmw_pvscsi: Set correct residual data length")
Cc: Matt Wang <wwentao@vmware.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Vishal Bhakta <vbhakta@vmware.com>
Cc: VMware PV-Drivers <pv-drivers@vmware.com>
Cc: James E.J. Bottomley <jejb@linux.ibm.com>
Cc: linux-scsi@vger.kernel.org
Cc: stable@vger.kernel.org
Reported-and-suggested-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/vmw_pvscsi.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 1421b1394d816..7d51ff4672d75 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -591,9 +591,12 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter,
 			 * Commands like INQUIRY may transfer less data than
 			 * requested by the initiator via bufflen. Set residual
 			 * count to make upper layer aware of the actual amount
-			 * of data returned.
+			 * of data returned. There are cases when controller
+			 * returns zero dataLen with non zero data - do not set
+			 * residual count in that case.
 			 */
-			scsi_set_resid(cmd, scsi_bufflen(cmd) - e->dataLen);
+			if (e->dataLen && (e->dataLen < scsi_bufflen(cmd)))
+				scsi_set_resid(cmd, scsi_bufflen(cmd) - e->dataLen);
 			cmd->result = (DID_OK << 16);
 			break;
 
-- 
GitLab


From 9f329d0d6c91142cf0ad08d23c72dd195db2633c Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Thu, 30 Dec 2021 20:57:46 -0800
Subject: [PATCH 2513/4878] Input: appletouch - initialize work before device
 registration

commit 9f3ccdc3f6ef10084ceb3a47df0961bec6196fd0 upstream.

Syzbot has reported warning in __flush_work(). This warning is caused by
work->func == NULL, which means missing work initialization.

This may happen, since input_dev->close() calls
cancel_work_sync(&dev->work), but dev->work initalization happens _after_
input_register_device() call.

So this patch moves dev->work initialization before registering input
device

Fixes: 5a6eb676d3bc ("Input: appletouch - improve powersaving for Geyser3 devices")
Reported-and-tested-by: syzbot+b88c5eae27386b252bbd@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211230141151.17300-1-paskripkin@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/mouse/appletouch.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index bfa26651c0be7..627048bc6a12e 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -916,6 +916,8 @@ static int atp_probe(struct usb_interface *iface,
 	set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
 	set_bit(BTN_LEFT, input_dev->keybit);
 
+	INIT_WORK(&dev->work, atp_reinit);
+
 	error = input_register_device(dev->input);
 	if (error)
 		goto err_free_buffer;
@@ -923,8 +925,6 @@ static int atp_probe(struct usb_interface *iface,
 	/* save our data pointer in this interface device */
 	usb_set_intfdata(iface, dev);
 
-	INIT_WORK(&dev->work, atp_reinit);
-
 	return 0;
 
  err_free_buffer:
-- 
GitLab


From 34087cf96046e79652d6cbf7439c68b4205faedd Mon Sep 17 00:00:00 2001
From: "Leo L. Schwab" <ewhac@ewhac.org>
Date: Thu, 30 Dec 2021 21:05:00 -0800
Subject: [PATCH 2514/4878] Input: spaceball - fix parsing of movement data
 packets

commit bc7ec91718c49d938849697cfad98fcd9877cc26 upstream.

The spaceball.c module was not properly parsing the movement reports
coming from the device.  The code read axis data as signed 16-bit
little-endian values starting at offset 2.

In fact, axis data in Spaceball movement reports are signed 16-bit
big-endian values starting at offset 3.  This was determined first by
visually inspecting the data packets, and later verified by consulting:
http://spacemice.org/pdf/SpaceBall_2003-3003_Protocol.pdf

If this ever worked properly, it was in the time before Git...

Signed-off-by: Leo L. Schwab <ewhac@ewhac.org>
Link: https://lore.kernel.org/r/20211221101630.1146385-1-ewhac@ewhac.org
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/joystick/spaceball.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/input/joystick/spaceball.c b/drivers/input/joystick/spaceball.c
index 429411c6c0a8e..a85a4f33aea8c 100644
--- a/drivers/input/joystick/spaceball.c
+++ b/drivers/input/joystick/spaceball.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/input.h>
 #include <linux/serio.h>
+#include <asm/unaligned.h>
 
 #define DRIVER_DESC	"SpaceTec SpaceBall 2003/3003/4000 FLX driver"
 
@@ -75,9 +76,15 @@ static void spaceball_process_packet(struct spaceball* spaceball)
 
 		case 'D':					/* Ball data */
 			if (spaceball->idx != 15) return;
-			for (i = 0; i < 6; i++)
+			/*
+			 * Skip first three bytes; read six axes worth of data.
+			 * Axis values are signed 16-bit big-endian.
+			 */
+			data += 3;
+			for (i = 0; i < ARRAY_SIZE(spaceball_axes); i++) {
 				input_report_abs(dev, spaceball_axes[i],
-					(__s16)((data[2 * i + 3] << 8) | data[2 * i + 2]));
+					(__s16)get_unaligned_be16(&data[i * 2]));
+			}
 			break;
 
 		case 'K':					/* Button data */
-- 
GitLab


From 2386e81a1d277f540e1285565c9d41d531bb69d4 Mon Sep 17 00:00:00 2001
From: Muchun Song <songmuchun@bytedance.com>
Date: Tue, 28 Dec 2021 18:41:45 +0800
Subject: [PATCH 2515/4878] net: fix use-after-free in tw_timer_handler

commit e22e45fc9e41bf9fcc1e92cfb78eb92786728ef0 upstream.

A real world panic issue was found as follow in Linux 5.4.

    BUG: unable to handle page fault for address: ffffde49a863de28
    PGD 7e6fe62067 P4D 7e6fe62067 PUD 7e6fe63067 PMD f51e064067 PTE 0
    RIP: 0010:tw_timer_handler+0x20/0x40
    Call Trace:
     <IRQ>
     call_timer_fn+0x2b/0x120
     run_timer_softirq+0x1ef/0x450
     __do_softirq+0x10d/0x2b8
     irq_exit+0xc7/0xd0
     smp_apic_timer_interrupt+0x68/0x120
     apic_timer_interrupt+0xf/0x20

This issue was also reported since 2017 in the thread [1],
unfortunately, the issue was still can be reproduced after fixing
DCCP.

The ipv4_mib_exit_net is called before tcp_sk_exit_batch when a net
namespace is destroyed since tcp_sk_ops is registered befrore
ipv4_mib_ops, which means tcp_sk_ops is in the front of ipv4_mib_ops
in the list of pernet_list. There will be a use-after-free on
net->mib.net_statistics in tw_timer_handler after ipv4_mib_exit_net
if there are some inflight time-wait timers.

This bug is not introduced by commit f2bf415cfed7 ("mib: add net to
NET_ADD_STATS_BH") since the net_statistics is a global variable
instead of dynamic allocation and freeing. Actually, commit
61a7e26028b9 ("mib: put net statistics on struct net") introduces
the bug since it put net statistics on struct net and free it when
net namespace is destroyed.

Moving init_ipv4_mibs() to the front of tcp_init() to fix this bug
and replace pr_crit() with panic() since continuing is meaningless
when init_ipv4_mibs() fails.

[1] https://groups.google.com/g/syzkaller/c/p1tn-_Kc6l4/m/smuL_FMAAgAJ?pli=1

Fixes: 61a7e26028b9 ("mib: put net statistics on struct net")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Cc: Cong Wang <cong.wang@bytedance.com>
Cc: Fam Zheng <fam.zheng@bytedance.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211228104145.9426-1-songmuchun@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/af_inet.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 8267349afe231..e2f85a16fad9b 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -2003,6 +2003,10 @@ static int __init inet_init(void)
 
 	ip_init();
 
+	/* Initialise per-cpu ipv4 mibs */
+	if (init_ipv4_mibs())
+		panic("%s: Cannot init ipv4 mibs\n", __func__);
+
 	/* Setup TCP slab cache for open requests. */
 	tcp_init();
 
@@ -2033,12 +2037,6 @@ static int __init inet_init(void)
 
 	if (init_inet_pernet_ops())
 		pr_crit("%s: Cannot init ipv4 inet pernet ops\n", __func__);
-	/*
-	 *	Initialise per-cpu ipv4 mibs
-	 */
-
-	if (init_ipv4_mibs())
-		pr_crit("%s: Cannot init ipv4 mibs\n", __func__);
 
 	ipv4_proc_init();
 
-- 
GitLab


From d8a5b1377bf6b7f74234c7708b96d6a25507710e Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 15 Dec 2021 10:06:35 +0200
Subject: [PATCH 2516/4878] perf script: Fix CPU filtering of a script's switch
 events

commit 5e0c325cdb714409a5b242c9e73a1b61157abb36 upstream.

CPU filtering was not being applied to a script's switch events.

Fixes: 5bf83c29a0ad2e78 ("perf script: Add scripting operation process_switch()")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211215080636.149562-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/builtin-script.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 1d727387cb205..5109d01619eed 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -2354,7 +2354,7 @@ static int process_switch_event(struct perf_tool *tool,
 	if (perf_event__process_switch(tool, event, sample, machine) < 0)
 		return -1;
 
-	if (scripting_ops && scripting_ops->process_switch)
+	if (scripting_ops && scripting_ops->process_switch && !filter_cpu(sample))
 		scripting_ops->process_switch(event, sample, machine);
 
 	if (!script->show_switch_events)
-- 
GitLab


From 8c15bfb36a442d63aec74a3379cb7a197f3e5f99 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Tue, 11 May 2021 22:35:17 +0200
Subject: [PATCH 2517/4878] bpf: Add kconfig knob for disabling unpriv bpf by
 default

commit 08389d888287c3823f80b0216766b71e17f0aba5 upstream.

Add a kconfig knob which allows for unprivileged bpf to be disabled by default.
If set, the knob sets /proc/sys/kernel/unprivileged_bpf_disabled to value of 2.

This still allows a transition of 2 -> {0,1} through an admin. Similarly,
this also still keeps 1 -> {1} behavior intact, so that once set to permanently
disabled, it cannot be undone aside from a reboot.

We've also added extra2 with max of 2 for the procfs handler, so that an admin
still has a chance to toggle between 0 <-> 2.

Either way, as an additional alternative, applications can make use of CAP_BPF
that we added a while ago.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/74ec548079189e4e4dffaeb42b8987bb3c852eee.1620765074.git.daniel@iogearbox.net
Cc: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/sysctl/kernel.rst | 17 +++++++++---
 init/Kconfig                                | 10 +++++++
 kernel/bpf/syscall.c                        |  3 ++-
 kernel/sysctl.c                             | 29 +++++++++++++++++----
 4 files changed, 50 insertions(+), 9 deletions(-)

diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index d4b32cc32bb79..7d5e8a67c775f 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -1457,11 +1457,22 @@ unprivileged_bpf_disabled
 =========================
 
 Writing 1 to this entry will disable unprivileged calls to ``bpf()``;
-once disabled, calling ``bpf()`` without ``CAP_SYS_ADMIN`` will return
-``-EPERM``.
+once disabled, calling ``bpf()`` without ``CAP_SYS_ADMIN`` or ``CAP_BPF``
+will return ``-EPERM``. Once set to 1, this can't be cleared from the
+running kernel anymore.
 
-Once set, this can't be cleared.
+Writing 2 to this entry will also disable unprivileged calls to ``bpf()``,
+however, an admin can still change this setting later on, if needed, by
+writing 0 or 1 to this entry.
 
+If ``BPF_UNPRIV_DEFAULT_OFF`` is enabled in the kernel config, then this
+entry will default to 2 instead of 0.
+
+= =============================================================
+0 Unprivileged calls to ``bpf()`` are enabled
+1 Unprivileged calls to ``bpf()`` are disabled without recovery
+2 Unprivileged calls to ``bpf()`` are disabled
+= =============================================================
 
 watchdog
 ========
diff --git a/init/Kconfig b/init/Kconfig
index fc4c9f416fadb..13685bffef370 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1722,6 +1722,16 @@ config BPF_JIT_DEFAULT_ON
 	def_bool ARCH_WANT_DEFAULT_BPF_JIT || BPF_JIT_ALWAYS_ON
 	depends on HAVE_EBPF_JIT && BPF_JIT
 
+config BPF_UNPRIV_DEFAULT_OFF
+	bool "Disable unprivileged BPF by default"
+	depends on BPF_SYSCALL
+	help
+	  Disables unprivileged BPF by default by setting the corresponding
+	  /proc/sys/kernel/unprivileged_bpf_disabled knob to 2. An admin can
+	  still reenable it by setting it to 0 later on, or permanently
+	  disable it by setting it to 1 (from which no other transition to
+	  0 is possible anymore).
+
 source "kernel/bpf/preload/Kconfig"
 
 config USERFAULTFD
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index bb9a9cb1f321e..209e6567cdab0 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -50,7 +50,8 @@ static DEFINE_SPINLOCK(map_idr_lock);
 static DEFINE_IDR(link_idr);
 static DEFINE_SPINLOCK(link_idr_lock);
 
-int sysctl_unprivileged_bpf_disabled __read_mostly;
+int sysctl_unprivileged_bpf_disabled __read_mostly =
+	IS_BUILTIN(CONFIG_BPF_UNPRIV_DEFAULT_OFF) ? 2 : 0;
 
 static const struct bpf_map_ops * const bpf_map_types[] = {
 #define BPF_PROG_TYPE(_id, _name, prog_ctx_type, kern_ctx_type)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b9306d2bb4269..72ceb19574d0c 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -233,7 +233,27 @@ static int bpf_stats_handler(struct ctl_table *table, int write,
 	mutex_unlock(&bpf_stats_enabled_mutex);
 	return ret;
 }
-#endif
+
+static int bpf_unpriv_handler(struct ctl_table *table, int write,
+			      void *buffer, size_t *lenp, loff_t *ppos)
+{
+	int ret, unpriv_enable = *(int *)table->data;
+	bool locked_state = unpriv_enable == 1;
+	struct ctl_table tmp = *table;
+
+	if (write && !capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	tmp.data = &unpriv_enable;
+	ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
+	if (write && !ret) {
+		if (locked_state && unpriv_enable != 1)
+			return -EPERM;
+		*(int *)table->data = unpriv_enable;
+	}
+	return ret;
+}
+#endif /* CONFIG_BPF_SYSCALL && CONFIG_SYSCTL */
 
 /*
  * /proc/sys support
@@ -2626,10 +2646,9 @@ static struct ctl_table kern_table[] = {
 		.data		= &sysctl_unprivileged_bpf_disabled,
 		.maxlen		= sizeof(sysctl_unprivileged_bpf_disabled),
 		.mode		= 0644,
-		/* only handle a transition from default "0" to "1" */
-		.proc_handler	= proc_dointvec_minmax,
-		.extra1		= SYSCTL_ONE,
-		.extra2		= SYSCTL_ONE,
+		.proc_handler	= bpf_unpriv_handler,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= &two,
 	},
 	{
 		.procname	= "bpf_stats_enabled",
-- 
GitLab


From d3e491a20d152e5fba6c02a38916d63f982d98a5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 5 Jan 2022 12:40:34 +0100
Subject: [PATCH 2518/4878] Linux 5.10.90

Link: https://lore.kernel.org/r/20220103142053.466768714@linuxfoundation.org
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20220104073841.681360658@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 1500ea340424d..556241a10821f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 89
+SUBLEVEL = 90
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 2728a95f3f5371a7c00dd6c361eeccbebaab4b1f Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Wed, 29 Dec 2021 14:05:30 -0800
Subject: [PATCH 2519/4878] ANDROID: remove stale variables from build.config
 files

There is no need for CROSS_COMPILE_COMPAT as of v5.16-rc1 via
commit 3e6f8d1fa184 ("arm64: vdso32: require CROSS_COMPILE_COMPAT for gcc+bfd")
when LLVM=1 is set. This was backported to v5.10.89.

LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN was a temporary dependency until
LLVM_IAS=1 was enabled for all architectures. With LLVM_IAS=1 (implied
by LLVM=1), nothing in this directory is used and the variable can be
removed.

It doesn't hurt to respecify any of the above, but they are no longer
necessary.

We may be able to further simplify the usage of LLVM_IAS=1 and
CROSS_COMPILE in android13-5.10 depending on whether the following get
backported in the future:

commit f12b034afeb3 ("scripts/Makefile.clang: default to LLVM_IAS=1").
commit 231ad7f409f1 ("Makefile: infer --target from ARCH for CC=clang")

Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I361b05ea9f36da933e6712150650f476b093d0a7
---
 build.config.aarch64 | 4 ----
 build.config.arm     | 3 ---
 build.config.x86_64  | 3 ---
 3 files changed, 10 deletions(-)

diff --git a/build.config.aarch64 b/build.config.aarch64
index 0346722447a5c..7dd14d64968d7 100644
--- a/build.config.aarch64
+++ b/build.config.aarch64
@@ -1,10 +1,6 @@
 ARCH=arm64
-
 LLVM_IAS=1
 CROSS_COMPILE=aarch64-linux-gnu-
-CROSS_COMPILE_COMPAT=arm-linux-gnueabi-
-LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gas/linux-x86
-
 MAKE_GOALS="
 Image
 modules
diff --git a/build.config.arm b/build.config.arm
index d944676a87e07..0419cece38620 100644
--- a/build.config.arm
+++ b/build.config.arm
@@ -1,9 +1,6 @@
 ARCH=arm
-
 LLVM_IAS=1
 CROSS_COMPILE=arm-linux-gnueabi-
-LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gas/linux-x86
-
 MAKE_GOALS="
 zImage
 modules
diff --git a/build.config.x86_64 b/build.config.x86_64
index ae4d41a33a295..c85360c6a3efe 100644
--- a/build.config.x86_64
+++ b/build.config.x86_64
@@ -1,9 +1,6 @@
 ARCH=x86_64
-
 LLVM_IAS=1
 CROSS_COMPILE=x86_64-linux-gnu-
-LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gas/linux-x86
-
 MAKE_GOALS="
 bzImage
 modules
-- 
GitLab


From 6ed33b82eaf8352574ba9ac7cff351a678fbe8e6 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 15 Dec 2021 11:27:34 -0800
Subject: [PATCH 2520/4878] ANDROID: fips140: refactor and rename
 fips140_lab_test

fips140_lab_test doesn't really do any tests per se, but rather is a
utility program that dumps some output.  The actual "test" is when the
lab checks the output; we aren't allowed to check it ourselves.

We also need to add some new functionality, which would work well as
sub-commands.  Also, the original idea was that this was just sample
code which the lab would modify, but that's not actually happening.

Therefore, rename fips140_lab_test to fips140_lab_util, and refactor its
functionality into sub-commands 'show_module_version' and
'show_service_indicators'.  This fits better with what is needed.

Bug: 188620248
Change-Id: I7da84a139283f185f79b8d866547151169f26415
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 samples/crypto/fips140_lab_test.c | 187 ---------------------
 samples/crypto/fips140_lab_util.c | 265 ++++++++++++++++++++++++++++++
 2 files changed, 265 insertions(+), 187 deletions(-)
 delete mode 100644 samples/crypto/fips140_lab_test.c
 create mode 100644 samples/crypto/fips140_lab_util.c

diff --git a/samples/crypto/fips140_lab_test.c b/samples/crypto/fips140_lab_test.c
deleted file mode 100644
index dd2324b8f84a9..0000000000000
--- a/samples/crypto/fips140_lab_test.c
+++ /dev/null
@@ -1,187 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2021 Google LLC
- *
- * This is a sample program which calls some ioctls on /dev/fips140 and prints
- * the results.  The purpose of this program is to allow the FIPS certification
- * lab to test some services of fips140.ko, which they are required to do.  This
- * is a sample program only, and it can be modified by the lab as needed.  This
- * program must be run as root, and it only works if the system has loaded a
- * build of fips140.ko with evaluation testing support enabled.
- *
- * This program can be compiled and run on an Android device as follows:
- *
- *	NDK_DIR=$HOME/android-ndk-r23b  # adjust directory path as needed
- *	$NDK_DIR/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android31-clang \
- *		fips140_lab_test.c -O2 -Wall -o fips140_lab_test
- *	adb push fips140_lab_test /data/local/tmp/
- *	adb root
- *	adb shell /data/local/tmp/fips140_lab_test
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/sysmacros.h>
-#include <unistd.h>
-
-#include "../../crypto/fips140-eval-testing-uapi.h"
-
-static int fips140_dev_fd = -1;
-
-#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))
-
-static const char *booltostr(bool b)
-{
-	return b ? "true" : "false";
-}
-
-static void __attribute__((noreturn))
-do_die(const char *format, va_list va, int err)
-{
-	fputs("ERROR: ", stderr);
-	vfprintf(stderr, format, va);
-	if (err)
-		fprintf(stderr, ": %s", strerror(err));
-	putc('\n', stderr);
-	exit(1);
-}
-
-static void __attribute__((noreturn, format(printf, 1, 2)))
-die_errno(const char *format, ...)
-{
-	va_list va;
-
-	va_start(va, format);
-	do_die(format, va, errno);
-	va_end(va);
-}
-
-static void __attribute__((noreturn, format(printf, 1, 2)))
-die(const char *format, ...)
-{
-	va_list va;
-
-	va_start(va, format);
-	do_die(format, va, 0);
-	va_end(va);
-}
-
-static int get_fips140_device_number(void)
-{
-	FILE *f;
-	char line[128];
-	int number;
-	char name[32];
-
-	f = fopen("/proc/devices", "r");
-	if (!f)
-		die_errno("failed to open /proc/devices");
-	while (fgets(line, sizeof(line), f)) {
-		if (sscanf(line, "%d %31s", &number, name) == 2 &&
-		    strcmp(name, "fips140") == 0)
-			return number;
-	}
-	fclose(f);
-	die("fips140 device node is unavailable.\n"
-"The fips140 device node is only available when the fips140 module is loaded\n"
-"and has been built with evaluation testing support.");
-}
-
-static void create_fips140_node_if_needed(void)
-{
-	struct stat stbuf;
-	int major;
-
-	if (stat("/dev/fips140", &stbuf) == 0)
-		return;
-
-	major = get_fips140_device_number();
-	if (mknod("/dev/fips140", S_IFCHR | 0600, makedev(major, 1)) != 0)
-		die_errno("failed to create fips140 device node");
-}
-
-static bool fips140_is_approved_service(const char *name)
-{
-	int ret = ioctl(fips140_dev_fd, FIPS140_IOCTL_IS_APPROVED_SERVICE, name);
-
-	if (ret < 0)
-		die_errno("FIPS140_IOCTL_IS_APPROVED_SERVICE unexpectedly failed");
-	if (ret == 1)
-		return true;
-	if (ret == 0)
-		return false;
-	die("FIPS140_IOCTL_IS_APPROVED_SERVICE returned unexpected value %d",
-	    ret);
-}
-
-static const char *fips140_module_version(void)
-{
-	char buf[256];
-	char *str;
-	int ret = ioctl(fips140_dev_fd, FIPS140_IOCTL_MODULE_VERSION, buf);
-
-	if (ret < 0)
-		die_errno("FIPS140_IOCTL_MODULE_VERSION unexpectedly failed");
-	if (ret != 0)
-		die("FIPS140_IOCTL_MODULE_VERSION returned unexpected value %d", ret);
-	str = strdup(buf);
-	if (!str)
-		die("out of memory");
-	return str;
-}
-
-static const char * const services_to_check[] = {
-	"aes",
-	"cbc(aes)",
-	"cbcmac(aes)",
-	"cmac(aes)",
-	"ctr(aes)",
-	"cts(cbc(aes))",
-	"ecb(aes)",
-	"essiv(cbc(aes),sha256)",
-	"gcm(aes)",
-	"hmac(sha1)",
-	"hmac(sha224)",
-	"hmac(sha256)",
-	"hmac(sha384)",
-	"hmac(sha512)",
-	"jitterentropy_rng",
-	"sha1",
-	"sha224",
-	"sha256",
-	"sha384",
-	"sha512",
-	"stdrng",
-	"xcbc(aes)",
-	"xts(aes)",
-};
-
-int main(void)
-{
-	size_t i;
-
-	if (getuid() != 0)
-		die("This program requires root.  Run 'adb root' first.");
-
-	create_fips140_node_if_needed();
-
-	fips140_dev_fd = open("/dev/fips140", O_RDONLY);
-	if (fips140_dev_fd < 0)
-		die_errno("failed to open /dev/fips140");
-
-	printf("fips140_module_version() => \"%s\"\n", fips140_module_version());
-	for (i = 0; i < ARRAY_SIZE(services_to_check); i++) {
-		const char *service = services_to_check[i];
-
-		printf("fips140_is_approved_service(\"%s\") => %s\n", service,
-		       booltostr(fips140_is_approved_service(service)));
-	}
-	return 0;
-}
diff --git a/samples/crypto/fips140_lab_util.c b/samples/crypto/fips140_lab_util.c
new file mode 100644
index 0000000000000..5ce2092bac8ac
--- /dev/null
+++ b/samples/crypto/fips140_lab_util.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2021 Google LLC
+ *
+ * This program provides commands that dump certain types of output from the
+ * fips140 kernel module, as required by the FIPS lab for evaluation purposes.
+ *
+ * While the fips140 kernel module can only be accessed directly by other kernel
+ * code, an easy-to-use userspace utility program was desired for lab testing.
+ * For this, a custom device node /dev/fips140 is used; this requires that the
+ * fips140 module is loaded and has evaluation testing support compiled in.
+ *
+ * This program can be compiled and run on an Android device as follows:
+ *
+ *	NDK_DIR=$HOME/android-ndk-r23b  # adjust directory path as needed
+ *	$NDK_DIR/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android31-clang \
+ *		fips140_lab_util.c -O2 -Wall -o fips140_lab_util
+ *	adb push fips140_lab_util /data/local/tmp/
+ *	adb root
+ *	adb shell /data/local/tmp/fips140_lab_util
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <unistd.h>
+
+#include "../../crypto/fips140-eval-testing-uapi.h"
+
+/* ---------------------------------------------------------------------------
+ *			       Utility functions
+ * ---------------------------------------------------------------------------*/
+
+#define ARRAY_SIZE(A)	(sizeof(A) / sizeof((A)[0]))
+
+static void __attribute__((noreturn))
+do_die(const char *format, va_list va, int err)
+{
+	fputs("ERROR: ", stderr);
+	vfprintf(stderr, format, va);
+	if (err)
+		fprintf(stderr, ": %s", strerror(err));
+	putc('\n', stderr);
+	exit(1);
+}
+
+static void __attribute__((noreturn, format(printf, 1, 2)))
+die_errno(const char *format, ...)
+{
+	va_list va;
+
+	va_start(va, format);
+	do_die(format, va, errno);
+	va_end(va);
+}
+
+static void __attribute__((noreturn, format(printf, 1, 2)))
+die(const char *format, ...)
+{
+	va_list va;
+
+	va_start(va, format);
+	do_die(format, va, 0);
+	va_end(va);
+}
+
+static const char *booltostr(bool b)
+{
+	return b ? "true" : "false";
+}
+
+static void usage(void);
+
+/* ---------------------------------------------------------------------------
+ *			      /dev/fips140 ioctls
+ * ---------------------------------------------------------------------------*/
+
+static int get_fips140_device_number(void)
+{
+	FILE *f;
+	char line[128];
+	int number;
+	char name[32];
+
+	f = fopen("/proc/devices", "r");
+	if (!f)
+		die_errno("Failed to open /proc/devices");
+	while (fgets(line, sizeof(line), f)) {
+		if (sscanf(line, "%d %31s", &number, name) == 2 &&
+		    strcmp(name, "fips140") == 0)
+			return number;
+	}
+	fclose(f);
+	die("fips140 device node is unavailable.\n"
+"The fips140 device node is only available when the fips140 module is loaded\n"
+"and has been built with evaluation testing support.");
+}
+
+static void create_fips140_node_if_needed(void)
+{
+	struct stat stbuf;
+	int major;
+
+	if (stat("/dev/fips140", &stbuf) == 0)
+		return;
+
+	major = get_fips140_device_number();
+	if (mknod("/dev/fips140", S_IFCHR | 0600, makedev(major, 1)) != 0)
+		die_errno("Failed to create fips140 device node");
+}
+
+static int fips140_dev_fd = -1;
+
+static int fips140_ioctl(int cmd, const void *arg)
+{
+	if (fips140_dev_fd < 0) {
+		create_fips140_node_if_needed();
+		fips140_dev_fd = open("/dev/fips140", O_RDONLY);
+		if (fips140_dev_fd < 0)
+			die_errno("Failed to open /dev/fips140");
+	}
+	return ioctl(fips140_dev_fd, cmd, arg);
+}
+
+static bool fips140_is_approved_service(const char *name)
+{
+	int ret = fips140_ioctl(FIPS140_IOCTL_IS_APPROVED_SERVICE, name);
+
+	if (ret < 0)
+		die_errno("FIPS140_IOCTL_IS_APPROVED_SERVICE unexpectedly failed");
+	if (ret == 1)
+		return true;
+	if (ret == 0)
+		return false;
+	die("FIPS140_IOCTL_IS_APPROVED_SERVICE returned unexpected value %d",
+	    ret);
+}
+
+static const char *fips140_module_version(void)
+{
+	static char buf[256];
+	int ret;
+
+	memset(buf, 0, sizeof(buf));
+	ret = fips140_ioctl(FIPS140_IOCTL_MODULE_VERSION, buf);
+	if (ret < 0)
+		die_errno("FIPS140_IOCTL_MODULE_VERSION unexpectedly failed");
+	if (ret != 0)
+		die("FIPS140_IOCTL_MODULE_VERSION returned unexpected value %d",
+		    ret);
+	return buf;
+}
+
+/* ---------------------------------------------------------------------------
+ *			  show_module_version command
+ * ---------------------------------------------------------------------------*/
+
+static int cmd_show_module_version(int argc, char *argv[])
+{
+	printf("fips140_module_version() => \"%s\"\n",
+	       fips140_module_version());
+	return 0;
+}
+
+/* ---------------------------------------------------------------------------
+ *			show_service_indicators command
+ * ---------------------------------------------------------------------------*/
+
+static const char * const default_services_to_show[] = {
+	"aes",
+	"cbc(aes)",
+	"cbcmac(aes)",
+	"cmac(aes)",
+	"ctr(aes)",
+	"cts(cbc(aes))",
+	"ecb(aes)",
+	"essiv(cbc(aes),sha256)",
+	"gcm(aes)",
+	"hmac(sha1)",
+	"hmac(sha224)",
+	"hmac(sha256)",
+	"hmac(sha384)",
+	"hmac(sha512)",
+	"jitterentropy_rng",
+	"sha1",
+	"sha224",
+	"sha256",
+	"sha384",
+	"sha512",
+	"stdrng",
+	"xcbc(aes)",
+	"xts(aes)",
+};
+
+static int cmd_show_service_indicators(int argc, char *argv[])
+{
+	const char * const *services = default_services_to_show;
+	int count = ARRAY_SIZE(default_services_to_show);
+	int i;
+
+	if (argc > 1) {
+		services = (const char **)(argv + 1);
+		count = argc - 1;
+	}
+	for (i = 0; i < count; i++) {
+		printf("fips140_is_approved_service(\"%s\") => %s\n",
+		       services[i],
+		       booltostr(fips140_is_approved_service(services[i])));
+	}
+	return 0;
+}
+
+/* ---------------------------------------------------------------------------
+ *				     main()
+ * ---------------------------------------------------------------------------*/
+
+static const struct command {
+	const char *name;
+	int (*func)(int argc, char *argv[]);
+} commands[] = {
+	{ "show_module_version", cmd_show_module_version },
+	{ "show_service_indicators", cmd_show_service_indicators },
+};
+
+static void usage(void)
+{
+	fprintf(stderr,
+"Usage:\n"
+"       fips140_lab_util show_module_version\n"
+"       fips140_lab_util show_service_indicators [SERVICE]...\n"
+	);
+}
+
+int main(int argc, char *argv[])
+{
+	int i;
+
+	if (argc < 2) {
+		usage();
+		return 2;
+	}
+	for (i = 1; i < argc; i++) {
+		if (strcmp(argv[i], "--help") == 0) {
+			usage();
+			return 2;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(commands); i++) {
+		if (strcmp(commands[i].name, argv[1]) == 0)
+			return commands[i].func(argc - 1, argv + 1);
+	}
+	fprintf(stderr, "Unknown command: %s\n\n", argv[1]);
+	usage();
+	return 2;
+}
-- 
GitLab


From 04e49b41be57bbc668e39a2bb65fa6022a22deba Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Wed, 15 Dec 2021 11:27:34 -0800
Subject: [PATCH 2521/4878] ANDROID: fips140: add show_invalid_inputs command
 to fips140_lab_util

Add a new fips140_lab_util command 'show_invalid_inputs' which uses
AF_ALG to call some crypto algorithms with invalid parameters to show
that they fail.  This is needed to meet a new requirement we've received
from the lab.  This requirement is vague, but a representative sample of
algorithms and inputs appears to be acceptable.

For this to work, AF_ALG needs to be enabled in the kernel.  This makes
fips140_lab_util start depending on a custom kernel build, not just on a
custom fips140 module build as was the case before.  However, the lab
testing was going to need custom boot images anyway once fips140.ko is
included in the normal builds, since the production build of fips140.ko
won't have CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING=y.  AF_ALG is also
needed to do the Jitter RNG entropy analysis properly, and the
AF_ALG-enabled kernel can also be reused for ACVP testing.

Bug: 188620248
Change-Id: I69054eab5005fc3ca0ea081760877f73ea229f5b
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 samples/crypto/fips140_lab_util.c | 287 +++++++++++++++++++++++++++++-
 1 file changed, 286 insertions(+), 1 deletion(-)

diff --git a/samples/crypto/fips140_lab_util.c b/samples/crypto/fips140_lab_util.c
index 5ce2092bac8ac..996839dbd2e39 100644
--- a/samples/crypto/fips140_lab_util.c
+++ b/samples/crypto/fips140_lab_util.c
@@ -7,7 +7,9 @@
  *
  * While the fips140 kernel module can only be accessed directly by other kernel
  * code, an easy-to-use userspace utility program was desired for lab testing.
- * For this, a custom device node /dev/fips140 is used; this requires that the
+ * When possible, this program uses AF_ALG to access the crypto algorithms; this
+ * requires that the kernel has AF_ALG enabled.  Where AF_ALG isn't sufficient,
+ * a custom device node /dev/fips140 is used instead; this requires that the
  * fips140 module is loaded and has evaluation testing support compiled in.
  *
  * This program can be compiled and run on an Android device as follows:
@@ -23,6 +25,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
+#include <linux/if_alg.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -30,6 +33,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
+#include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/sysmacros.h>
 #include <unistd.h>
@@ -73,11 +77,38 @@ die(const char *format, ...)
 	va_end(va);
 }
 
+static void __attribute__((noreturn))
+assertion_failed(const char *expr, const char *file, int line)
+{
+	die("Assertion failed: %s at %s:%d", expr, file, line);
+}
+
+#define ASSERT(e) ({ if (!(e)) assertion_failed(#e, __FILE__, __LINE__); })
+
+static void rand_bytes(uint8_t *bytes, size_t count)
+{
+	size_t i;
+
+	for (i = 0; i < count; i++)
+		bytes[i] = rand();
+}
+
 static const char *booltostr(bool b)
 {
 	return b ? "true" : "false";
 }
 
+static const char *bytes_to_hex(const uint8_t *bytes, size_t count)
+{
+	static char hex[1025];
+	size_t i;
+
+	ASSERT(count <= 512);
+	for (i = 0; i < count; i++)
+		sprintf(&hex[2*i], "%02x", bytes[i]);
+	return hex;
+}
+
 static void usage(void);
 
 /* ---------------------------------------------------------------------------
@@ -160,6 +191,258 @@ static const char *fips140_module_version(void)
 	return buf;
 }
 
+/* ---------------------------------------------------------------------------
+ *				AF_ALG utilities
+ * ---------------------------------------------------------------------------*/
+
+#define AF_ALG_MAX_RNG_REQUEST_SIZE	128
+
+static int get_alg_fd(const char *alg_type, const char *alg_name)
+{
+	struct sockaddr_alg addr = {};
+	int alg_fd;
+
+	alg_fd = socket(AF_ALG, SOCK_SEQPACKET, 0);
+	if (alg_fd < 0)
+		die("Failed to create AF_ALG socket.\n"
+"AF_ALG is only available when it has been enabled in the kernel.\n");
+
+	strncpy((char *)addr.salg_type, alg_type, sizeof(addr.salg_type) - 1);
+	strncpy((char *)addr.salg_name, alg_name, sizeof(addr.salg_name) - 1);
+
+	if (bind(alg_fd, (void *)&addr, sizeof(addr)) != 0)
+		die_errno("Failed to bind AF_ALG socket to %s %s",
+			  alg_type, alg_name);
+	return alg_fd;
+}
+
+static int get_req_fd(int alg_fd, const char *alg_name)
+{
+	int req_fd = accept(alg_fd, NULL, NULL);
+
+	if (req_fd < 0)
+		die_errno("Failed to get request file descriptor for %s",
+			  alg_name);
+	return req_fd;
+}
+
+/* ---------------------------------------------------------------------------
+ *			  show_invalid_inputs command
+ * ---------------------------------------------------------------------------*/
+
+enum direction {
+	UNSPECIFIED,
+	DECRYPT,
+	ENCRYPT,
+};
+
+static const struct invalid_input_test {
+	const char *alg_type;
+	const char *alg_name;
+	const char *key;
+	size_t key_size;
+	const char *msg;
+	size_t msg_size;
+	const char *iv;
+	size_t iv_size;
+	enum direction direction;
+	int setkey_error;
+	int crypt_error;
+} invalid_input_tests[] = {
+	{
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 16,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 17,
+		.setkey_error = EINVAL,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 24,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 32,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 33,
+		.setkey_error = EINVAL,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 16,
+		.msg_size = 1,
+		.direction = DECRYPT,
+		.crypt_error = EINVAL,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 16,
+		.msg_size = 16,
+		.direction = ENCRYPT,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "cbc(aes)",
+		.key_size = 16,
+		.msg_size = 17,
+		.direction = ENCRYPT,
+		.crypt_error = EINVAL,
+	}, {
+		.alg_type = "hash",
+		.alg_name = "cmac(aes)",
+		.key_size = 29,
+		.setkey_error = EINVAL,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "xts(aes)",
+		.key_size = 32,
+	}, {
+		.alg_type = "skcipher",
+		.alg_name = "xts(aes)",
+		.key = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
+		       "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0",
+		.key_size = 32,
+		.setkey_error = EINVAL,
+	}
+};
+
+static const char *describe_crypt_op(const struct invalid_input_test *t)
+{
+	if (t->direction == ENCRYPT)
+		return "encryption";
+	if (t->direction == DECRYPT)
+		return "decryption";
+	if (strcmp(t->alg_type, "hash") == 0)
+		return "hashing";
+	ASSERT(0);
+}
+
+static bool af_alg_setkey(const struct invalid_input_test *t, int alg_fd)
+{
+	const uint8_t *key = (const uint8_t *)t->key;
+	uint8_t _key[t->key_size];
+
+	if (t->key_size == 0)
+		return true;
+
+	if (t->key == NULL) {
+		rand_bytes(_key, t->key_size);
+		key = _key;
+	}
+	if (setsockopt(alg_fd, SOL_ALG, ALG_SET_KEY, key, t->key_size) != 0) {
+		printf("%s: setting %zu-byte key failed with error '%s'\n",
+		       t->alg_name, t->key_size, strerror(errno));
+		printf("\tkey was %s\n\n", bytes_to_hex(key, t->key_size));
+		ASSERT(t->setkey_error == errno);
+		return false;
+	}
+	printf("%s: setting %zu-byte key succeeded\n",
+	       t->alg_name, t->key_size);
+	printf("\tkey was %s\n\n", bytes_to_hex(key, t->key_size));
+	ASSERT(t->setkey_error == 0);
+	return true;
+}
+
+static void af_alg_process_msg(const struct invalid_input_test *t, int alg_fd)
+{
+	struct iovec iov;
+	struct msghdr hdr = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+	};
+	const uint8_t *msg = (const uint8_t *)t->msg;
+	uint8_t *_msg = NULL;
+	uint8_t *output = NULL;
+	uint8_t *control = NULL;
+	size_t controllen = 0;
+	struct cmsghdr *cmsg;
+	int req_fd;
+
+	if (t->msg_size == 0)
+		return;
+
+	req_fd = get_req_fd(alg_fd, t->alg_name);
+
+	if (t->msg == NULL) {
+		_msg = malloc(t->msg_size);
+		rand_bytes(_msg, t->msg_size);
+		msg = _msg;
+	}
+	output = malloc(t->msg_size);
+	iov.iov_base = (void *)msg;
+	iov.iov_len = t->msg_size;
+
+	if (t->direction != UNSPECIFIED)
+		controllen += CMSG_SPACE(sizeof(uint32_t));
+	if (t->iv_size)
+		controllen += CMSG_SPACE(sizeof(struct af_alg_iv) + t->iv_size);
+	control = calloc(1, controllen);
+	hdr.msg_control = control;
+	hdr.msg_controllen = controllen;
+	cmsg = CMSG_FIRSTHDR(&hdr);
+	if (t->direction != UNSPECIFIED) {
+		cmsg->cmsg_level = SOL_ALG;
+		cmsg->cmsg_type = ALG_SET_OP;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+		*(uint32_t *)CMSG_DATA(cmsg) = t->direction == DECRYPT ?
+				ALG_OP_DECRYPT : ALG_OP_ENCRYPT;
+		cmsg = CMSG_NXTHDR(&hdr, cmsg);
+	}
+	if (t->iv_size) {
+		struct af_alg_iv *alg_iv;
+
+		cmsg->cmsg_level = SOL_ALG;
+		cmsg->cmsg_type = ALG_SET_IV;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(*alg_iv) + t->iv_size);
+		alg_iv = (struct af_alg_iv *)CMSG_DATA(cmsg);
+		alg_iv->ivlen = t->iv_size;
+		memcpy(alg_iv->iv, t->iv, t->iv_size);
+	}
+
+	if (sendmsg(req_fd, &hdr, 0) != t->msg_size)
+		die_errno("sendmsg failed");
+
+	if (read(req_fd, output, t->msg_size) != t->msg_size) {
+		printf("%s: %s of %zu-byte message failed with error '%s'\n",
+		       t->alg_name, describe_crypt_op(t), t->msg_size,
+		       strerror(errno));
+		printf("\tmessage was %s\n\n", bytes_to_hex(msg, t->msg_size));
+		ASSERT(t->crypt_error == errno);
+	} else {
+		printf("%s: %s of %zu-byte message succeeded\n",
+		       t->alg_name, describe_crypt_op(t), t->msg_size);
+		printf("\tmessage was %s\n\n", bytes_to_hex(msg, t->msg_size));
+		ASSERT(t->crypt_error == 0);
+	}
+	free(_msg);
+	free(output);
+	free(control);
+	close(req_fd);
+}
+
+static void test_invalid_input(const struct invalid_input_test *t)
+{
+	int alg_fd = get_alg_fd(t->alg_type, t->alg_name);
+
+	if (af_alg_setkey(t, alg_fd))
+		af_alg_process_msg(t, alg_fd);
+
+	close(alg_fd);
+}
+
+static int cmd_show_invalid_inputs(int argc, char *argv[])
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(invalid_input_tests); i++)
+		test_invalid_input(&invalid_input_tests[i]);
+	return 0;
+}
+
 /* ---------------------------------------------------------------------------
  *			  show_module_version command
  * ---------------------------------------------------------------------------*/
@@ -227,6 +510,7 @@ static const struct command {
 	const char *name;
 	int (*func)(int argc, char *argv[]);
 } commands[] = {
+	{ "show_invalid_inputs", cmd_show_invalid_inputs },
 	{ "show_module_version", cmd_show_module_version },
 	{ "show_service_indicators", cmd_show_service_indicators },
 };
@@ -235,6 +519,7 @@ static void usage(void)
 {
 	fprintf(stderr,
 "Usage:\n"
+"       fips140_lab_util show_invalid_inputs\n"
 "       fips140_lab_util show_module_version\n"
 "       fips140_lab_util show_service_indicators [SERVICE]...\n"
 	);
-- 
GitLab


From b219d099aae2d2dc74a4ab9513d66d153e4cb228 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Tue, 17 Aug 2021 12:38:02 -0700
Subject: [PATCH 2522/4878] Revert "ANDROID: mm: fix up removal of
 vm_total_pages problem"

This reverts commit aa9752dec8d8d95c0872f26c9c1935c410a8f1b8.
Removing out-of-tree patch.

Bug: 109664768
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I1f7d83697d08067e75a4b575a669b4dfe49eed59
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e18561a8c5cd7..c644ca6c0abbc 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8023,7 +8023,7 @@ static void __setup_per_zone_wmarks(void)
 		tmp = (u64)pages_min * zone_managed_pages(zone);
 		do_div(tmp, lowmem_pages);
 		low = (u64)pages_low * zone_managed_pages(zone);
-		do_div(low, nr_free_zone_pages(gfp_zone(GFP_HIGHUSER_MOVABLE)));
+		do_div(low, vm_total_pages);
 		if (is_highmem(zone)) {
 			/*
 			 * __GFP_HIGH and PF_MEMALLOC allocations usually don't
-- 
GitLab


From 8ecc974abe846c05419bf4084e0789b841c827ff Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Tue, 17 Aug 2021 12:56:23 -0700
Subject: [PATCH 2523/4878] Revert "ANDROID: add extra free kbytes tunable"

This reverts commit 92501cb6702a816402a8b30199f2c10301d5b59e.
Removing out-of-tree patch.

Bug: 109664768
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I31d831dad0716381b1e477f1f11c758135a5fde5
---
 kernel/sysctl.c |  9 ---------
 mm/page_alloc.c | 23 ++++-------------------
 2 files changed, 4 insertions(+), 28 deletions(-)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 7aed10c7dea96..b4eeaaaeaa65b 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -107,7 +107,6 @@
 #if defined(CONFIG_SYSCTL)
 
 /* External variables not in a header file. */
-extern int extra_free_kbytes;
 
 /* Constants used for minimum and  maximum */
 #ifdef CONFIG_LOCKUP_DETECTOR
@@ -2907,14 +2906,6 @@ static struct ctl_table vm_table[] = {
 		.extra1		= SYSCTL_ONE,
 		.extra2		= &one_thousand,
 	},
-	{
-		.procname	= "extra_free_kbytes",
-		.data		= &extra_free_kbytes,
-		.maxlen		= sizeof(extra_free_kbytes),
-		.mode		= 0644,
-		.proc_handler	= min_free_kbytes_sysctl_handler,
-		.extra1		= SYSCTL_ZERO,
-	},
 	{
 		.procname	= "percpu_pagelist_fraction",
 		.data		= &percpu_pagelist_fraction,
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c644ca6c0abbc..80635e8e4be4a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -330,11 +330,6 @@ compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
 #endif
 };
 
-/*
- * Try to keep at least this much lowmem free.  Do not allow normal
- * allocations below this point, only high priority ones. Automatically
- * tuned according to the amount of memory in the system.
- */
 int min_free_kbytes = 1024;
 int user_min_free_kbytes = -1;
 #ifdef CONFIG_DISCONTIGMEM
@@ -353,13 +348,6 @@ int watermark_boost_factor __read_mostly = 15000;
 #endif
 int watermark_scale_factor = 10;
 
-/*
- * Extra memory for the system to try freeing. Used to temporarily
- * free memory, to make space for new workloads. Anyone can allocate
- * down to the min watermarks controlled by min_free_kbytes above.
- */
-int extra_free_kbytes = 0;
-
 static unsigned long nr_kernel_pages __initdata;
 static unsigned long nr_all_pages __initdata;
 static unsigned long dma_reserve __initdata;
@@ -8005,7 +7993,6 @@ static void setup_per_zone_lowmem_reserve(void)
 static void __setup_per_zone_wmarks(void)
 {
 	unsigned long pages_min = min_free_kbytes >> (PAGE_SHIFT - 10);
-	unsigned long pages_low = extra_free_kbytes >> (PAGE_SHIFT - 10);
 	unsigned long lowmem_pages = 0;
 	struct zone *zone;
 	unsigned long flags;
@@ -8017,13 +8004,11 @@ static void __setup_per_zone_wmarks(void)
 	}
 
 	for_each_zone(zone) {
-		u64 tmp, low;
+		u64 tmp;
 
 		spin_lock_irqsave(&zone->lock, flags);
 		tmp = (u64)pages_min * zone_managed_pages(zone);
 		do_div(tmp, lowmem_pages);
-		low = (u64)pages_low * zone_managed_pages(zone);
-		do_div(low, vm_total_pages);
 		if (is_highmem(zone)) {
 			/*
 			 * __GFP_HIGH and PF_MEMALLOC allocations usually don't
@@ -8057,8 +8042,8 @@ static void __setup_per_zone_wmarks(void)
 				      watermark_scale_factor, 10000));
 
 		zone->watermark_boost = 0;
-		zone->_watermark[WMARK_LOW]  = min_wmark_pages(zone) + low + tmp;
-		zone->_watermark[WMARK_HIGH] = min_wmark_pages(zone) + low + tmp * 2;
+		zone->_watermark[WMARK_LOW]  = min_wmark_pages(zone) + tmp;
+		zone->_watermark[WMARK_HIGH] = min_wmark_pages(zone) + tmp * 2;
 
 		spin_unlock_irqrestore(&zone->lock, flags);
 	}
@@ -8143,7 +8128,7 @@ postcore_initcall(init_per_zone_wmark_min)
 /*
  * min_free_kbytes_sysctl_handler - just a wrapper around proc_dointvec() so
  *	that we can call two helper functions whenever min_free_kbytes
- *	or extra_free_kbytes changes.
+ *	changes.
  */
 int min_free_kbytes_sysctl_handler(struct ctl_table *table, int write,
 		void *buffer, size_t *length, loff_t *ppos)
-- 
GitLab


From 8fded571e7393141d0c8a33ee04db5668dc50f17 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Tue, 7 Dec 2021 17:30:49 +1100
Subject: [PATCH 2524/4878] FROMGIT: mm/pagealloc: sysctl: change
 watermark_scale_factor max limit to 30%

For embedded systems with low total memory, having to run applications
with relatively large memory requirements, 10% max limitation for
watermark_scale_factor poses an issue of triggering direct reclaim every
time such application is started.  This results in slow application
startup times and bad end-user experience.

By increasing watermark_scale_factor max limit we allow vendors more
flexibility to choose the right level of kswapd aggressiveness for their
device and workload requirements.

Link: https://lkml.kernel.org/r/20211124193604.2758863-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Lukas Middendorf <kernel@tuxforce.de>
Cc: Antti Palosaari <crope@iki.fi>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Zhang Yi <yi.zhang@huawei.com>
Cc: Fengfei Xi <xi.fengfei@h3c.com>
Cc: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

(cherry picked from commit 4e36dc369cc7581ac19a7523303e682a53e52e59
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master)

Bug: 194652782
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I3e926c8b222933a10c79068d22a1407ff3181824
---
 Documentation/admin-guide/sysctl/vm.rst | 2 +-
 kernel/sysctl.c                         | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 9c321c7ddc184..c7d82184fae02 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -970,7 +970,7 @@ how much memory needs to be free before kswapd goes back to sleep.
 
 The unit is in fractions of 10,000. The default value of 10 means the
 distances between watermarks are 0.1% of the available memory in the
-node/system. The maximum value is 1000, or 10% of memory.
+node/system. The maximum value is 3000, or 30% of memory.
 
 A high rate of threads entering direct reclaim (allocstall) or kswapd
 going to sleep prematurely (kswapd_low_wmark_hit_quickly) can indicate
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b4eeaaaeaa65b..2c3bf3b197fa2 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -122,6 +122,7 @@ static unsigned long long_max = LONG_MAX;
 static int one_hundred = 100;
 static int two_hundred = 200;
 static int one_thousand = 1000;
+static int three_thousand = 3000;
 #ifdef CONFIG_PRINTK
 static int ten_thousand = 10000;
 #endif
@@ -2904,7 +2905,7 @@ static struct ctl_table vm_table[] = {
 		.mode		= 0644,
 		.proc_handler	= watermark_scale_factor_sysctl_handler,
 		.extra1		= SYSCTL_ONE,
-		.extra2		= &one_thousand,
+		.extra2		= &three_thousand,
 	},
 	{
 		.procname	= "percpu_pagelist_fraction",
-- 
GitLab


From 2f0e90e9ec470bab76cde3f2ad98054ff164fff3 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Wed, 5 Jan 2022 10:58:25 -0800
Subject: [PATCH 2525/4878] Revert "FROMGIT: mm: improve mprotect(R|W)
 efficiency on pages referenced once"

This reverts commit b44e46bb047d136bc8977497b6fc2a9f08740321.

Reason for revert:

The patch has not yet landed upstream, following feedback from Linus:
https://lore.kernel.org/all/CAHk-=wj4KCujAH_oPh40Bkp48amM4MXr+8AcbZ=qd5LF4Q+TDg@mail.gmail.com/#t

Bug: 213339151
Signed-off-by: Peter Collingbourne <pcc@google.com>
Change-Id: I81c2cef4076487df1dd0ee75449dcb2371ac1dbc
---
 mm/mprotect.c | 52 ++++++---------------------------------------------
 1 file changed, 6 insertions(+), 46 deletions(-)

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 05073d7abff48..d95115a572837 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -35,51 +35,6 @@
 
 #include "internal.h"
 
-/* Determine whether we can avoid taking write faults for known dirty pages. */
-static bool may_avoid_write_fault(pte_t pte, struct vm_area_struct *vma,
-				  unsigned long cp_flags)
-{
-	/*
-	 * The dirty accountable bit indicates that we can always make the page
-	 * writable regardless of the number of references.
-	 */
-	if (!(cp_flags & MM_CP_DIRTY_ACCT)) {
-		/* Otherwise, we must have exclusive access to the page. */
-		if (!(vma_is_anonymous(vma) && (vma->vm_flags & VM_WRITE)))
-			return false;
-
-		if (page_count(pte_page(pte)) != 1)
-			return false;
-	}
-
-	/*
-	 * Don't do this optimization for clean pages as we need to be notified
-	 * of the transition from clean to dirty.
-	 */
-	if (!pte_dirty(pte))
-		return false;
-
-	/* Same for softdirty. */
-	if (!pte_soft_dirty(pte) && (vma->vm_flags & VM_SOFTDIRTY))
-		return false;
-
-	/*
-	 * For userfaultfd the user program needs to monitor write faults so we
-	 * can't do this optimization.
-	 */
-	if (pte_uffd_wp(pte))
-		return false;
-
-	/*
-	 * It is unclear whether this optimization can be done safely for NUMA
-	 * pages.
-	 */
-	if (cp_flags & MM_CP_PROT_NUMA)
-		return false;
-
-	return true;
-}
-
 static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, unsigned long end, pgprot_t newprot,
 		unsigned long cp_flags)
@@ -88,6 +43,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	spinlock_t *ptl;
 	unsigned long pages = 0;
 	int target_node = NUMA_NO_NODE;
+	bool dirty_accountable = cp_flags & MM_CP_DIRTY_ACCT;
 	bool prot_numa = cp_flags & MM_CP_PROT_NUMA;
 	bool uffd_wp = cp_flags & MM_CP_UFFD_WP;
 	bool uffd_wp_resolve = cp_flags & MM_CP_UFFD_WP_RESOLVE;
@@ -175,8 +131,12 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 				ptent = pte_clear_uffd_wp(ptent);
 			}
 
-			if (may_avoid_write_fault(ptent, vma, cp_flags))
+			/* Avoid taking write faults for known dirty pages */
+			if (dirty_accountable && pte_dirty(ptent) &&
+					(pte_soft_dirty(ptent) ||
+					 !(vma->vm_flags & VM_SOFTDIRTY))) {
 				ptent = pte_mkwrite(ptent);
+			}
 			ptep_modify_prot_commit(vma, addr, pte, oldpte, ptent);
 			pages++;
 		} else if (is_swap_pte(oldpte)) {
-- 
GitLab


From 7167628e4cfb7f2e2fb40881ee5afd984fff615f Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 2 Sep 2021 15:00:29 -0700
Subject: [PATCH 2526/4878] UPSTREAM: mm: introduce process_mrelease system
 call

In modern systems it's not unusual to have a system component monitoring
memory conditions of the system and tasked with keeping system memory
pressure under control.  One way to accomplish that is to kill
non-essential processes to free up memory for more important ones.
Examples of this are Facebook's OOM killer daemon called oomd and
Android's low memory killer daemon called lmkd.

For such system component it's important to be able to free memory quickly
and efficiently.  Unfortunately the time process takes to free up its
memory after receiving a SIGKILL might vary based on the state of the
process (uninterruptible sleep), size and OPP level of the core the
process is running.  A mechanism to free resources of the target process
in a more predictable way would improve system's ability to control its
memory pressure.

Introduce process_mrelease system call that releases memory of a dying
process from the context of the caller.  This way the memory is freed in a
more controllable way with CPU affinity and priority of the caller.  The
workload of freeing the memory will also be charged to the caller.  The
operation is allowed only on a dying process.

After previous discussions [1, 2, 3] the decision was made [4] to
introduce a dedicated system call to cover this use case.

The API is as follows,

          int process_mrelease(int pidfd, unsigned int flags);

        DESCRIPTION
          The process_mrelease() system call is used to free the memory of
          an exiting process.

          The pidfd selects the process referred to by the PID file
          descriptor.
          (See pidfd_open(2) for further information)

          The flags argument is reserved for future use; currently, this
          argument must be specified as 0.

        RETURN VALUE
          On success, process_mrelease() returns 0. On error, -1 is
          returned and errno is set to indicate the error.

        ERRORS
          EBADF  pidfd is not a valid PID file descriptor.

          EAGAIN Failed to release part of the address space.

          EINTR  The call was interrupted by a signal; see signal(7).

          EINVAL flags is not 0.

          EINVAL The memory of the task cannot be released because the
                 process is not exiting, the address space is shared
                 with another live process or there is a core dump in
                 progress.

          ENOSYS This system call is not supported, for example, without
                 MMU support built into Linux.

          ESRCH  The target process does not exist (i.e., it has terminated
                 and been waited on).

[1] https://lore.kernel.org/lkml/20190411014353.113252-3-surenb@google.com/
[2] https://lore.kernel.org/linux-api/20201113173448.1863419-1-surenb@google.com/
[3] https://lore.kernel.org/linux-api/20201124053943.1684874-3-surenb@google.com/
[4] https://lore.kernel.org/linux-api/20201223075712.GA4719@lst.de/

Link: https://lkml.kernel.org/r/20210809185259.405936-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jan Engelhardt <jengelh@inai.de>
Cc: Tim Murray <timmurray@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 884a7e5964e06ed93c7771c0d7cf19c09a8946f1)

Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I60d37051acaeff1b7eb7d10aeca23dfa1f2469a3
---
 mm/oom_kill.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 482224d5e2cbb..8e2f0adc5da98 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -28,6 +28,7 @@
 #include <linux/sched/task.h>
 #include <linux/sched/debug.h>
 #include <linux/swap.h>
+#include <linux/syscalls.h>
 #include <linux/timex.h>
 #include <linux/jiffies.h>
 #include <linux/cpuset.h>
@@ -1192,6 +1193,75 @@ void pagefault_out_of_memory(void)
 		pr_warn("Huh VM_FAULT_OOM leaked out to the #PF handler. Retrying PF\n");
 }
 
+SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
+{
+#ifdef CONFIG_MMU
+	struct mm_struct *mm = NULL;
+	struct task_struct *task;
+	struct task_struct *p;
+	unsigned int f_flags;
+	bool reap = true;
+	struct pid *pid;
+	long ret = 0;
+
+	if (flags)
+		return -EINVAL;
+
+	pid = pidfd_get_pid(pidfd, &f_flags);
+	if (IS_ERR(pid))
+		return PTR_ERR(pid);
+
+	task = get_pid_task(pid, PIDTYPE_TGID);
+	if (!task) {
+		ret = -ESRCH;
+		goto put_pid;
+	}
+
+	/*
+	 * Make sure to choose a thread which still has a reference to mm
+	 * during the group exit
+	 */
+	p = find_lock_task_mm(task);
+	if (!p) {
+		ret = -ESRCH;
+		goto put_task;
+	}
+
+	mm = p->mm;
+	mmgrab(mm);
+
+	/* If the work has been done already, just exit with success */
+	if (test_bit(MMF_OOM_SKIP, &mm->flags))
+		reap = false;
+	else if (!task_will_free_mem(p)) {
+		reap = false;
+		ret = -EINVAL;
+	}
+	task_unlock(p);
+
+	if (!reap)
+		goto drop_mm;
+
+	if (mmap_read_lock_killable(mm)) {
+		ret = -EINTR;
+		goto drop_mm;
+	}
+	if (!__oom_reap_task_mm(mm))
+		ret = -EAGAIN;
+	mmap_read_unlock(mm);
+
+drop_mm:
+	mmdrop(mm);
+put_task:
+	put_task_struct(task);
+put_pid:
+	put_pid(pid);
+	return ret;
+#else
+	return -ENOSYS;
+#endif /* CONFIG_MMU */
+}
+
 void add_to_oom_reaper(struct task_struct *p)
 {
 	p = find_lock_task_mm(p);
-- 
GitLab


From 11a2f368e4bc4d124edb9ed23d88b9ee7aecbf65 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 2 Sep 2021 15:00:33 -0700
Subject: [PATCH 2527/4878] UPSTREAM: mm: wire up syscall process_mrelease

Split off from prev patch in the series that implements the syscall.

Link: https://lkml.kernel.org/r/20210809185259.405936-2-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jan Engelhardt <jengelh@inai.de>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Tim Murray <timmurray@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit dce49103962840dd61423d7627748d6c558d58c5)

Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I6f02c1ec136a7e102f133ee46a7070a151781345
---
 arch/alpha/kernel/syscalls/syscall.tbl      | 2 ++
 arch/arm/tools/syscall.tbl                  | 2 ++
 arch/arm64/include/asm/unistd.h             | 2 +-
 arch/arm64/include/asm/unistd32.h           | 2 ++
 arch/ia64/kernel/syscalls/syscall.tbl       | 2 ++
 arch/m68k/kernel/syscalls/syscall.tbl       | 2 ++
 arch/microblaze/kernel/syscalls/syscall.tbl | 2 ++
 arch/mips/kernel/syscalls/syscall_n32.tbl   | 2 ++
 arch/mips/kernel/syscalls/syscall_n64.tbl   | 2 ++
 arch/mips/kernel/syscalls/syscall_o32.tbl   | 2 ++
 arch/parisc/kernel/syscalls/syscall.tbl     | 2 ++
 arch/powerpc/kernel/syscalls/syscall.tbl    | 2 ++
 arch/s390/kernel/syscalls/syscall.tbl       | 2 ++
 arch/sh/kernel/syscalls/syscall.tbl         | 2 ++
 arch/sparc/kernel/syscalls/syscall.tbl      | 2 ++
 arch/x86/entry/syscalls/syscall_32.tbl      | 1 +
 arch/x86/entry/syscalls/syscall_64.tbl      | 1 +
 arch/xtensa/kernel/syscalls/syscall.tbl     | 2 ++
 include/linux/syscalls.h                    | 1 +
 include/uapi/asm-generic/unistd.h           | 4 +++-
 kernel/sys_ni.c                             | 1 +
 21 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index ee7b01bb7346c..95b996b6c4f12 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -480,3 +480,5 @@
 548	common	pidfd_getfd			sys_pidfd_getfd
 549	common	faccessat2			sys_faccessat2
 550	common	process_madvise			sys_process_madvise
+# 557 reserved for memfd_secret
+558	common	process_mrelease		sys_process_mrelease
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index d056a548358ea..ee8207e943fae 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -454,3 +454,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index b3b2019f8d16b..3cb206aea3db1 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -38,7 +38,7 @@
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE + 5)
 #define __ARM_NR_COMPAT_END		(__ARM_NR_COMPAT_BASE + 0x800)
 
-#define __NR_compat_syscalls		441
+#define __NR_compat_syscalls		449
 #endif
 
 #define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 107f08e03b9fd..7ae50cc6cd1cd 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -889,6 +889,8 @@ __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
 __SYSCALL(__NR_faccessat2, sys_faccessat2)
 #define __NR_process_madvise 440
 __SYSCALL(__NR_process_madvise, sys_process_madvise)
+#define __NR_process_mrelease 448
+__SYSCALL(__NR_process_mrelease, sys_process_mrelease)
 
 /*
  * Please add new compat syscalls above this comment and update
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
index b96ed8b8a5089..f2b90e45c9c28 100644
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@@ -361,3 +361,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index 625fb6d328424..a2715bc6d4091 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -440,3 +440,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index aae729c95cf99..5b9f1166dfff3 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -446,3 +446,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index 32817c954435d..2ee36d91dbf08 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -379,3 +379,5 @@
 438	n32	pidfd_getfd			sys_pidfd_getfd
 439	n32	faccessat2			sys_faccessat2
 440	n32	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	n32	process_mrelease		sys_process_mrelease
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 9e4ea3c31b1ce..d7ee167969e72 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -355,3 +355,5 @@
 438	n64	pidfd_getfd			sys_pidfd_getfd
 439	n64	faccessat2			sys_faccessat2
 440	n64	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	n64	process_mrelease		sys_process_mrelease
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 29f5f28cf5cea..03f0ff8f841c7 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -428,3 +428,5 @@
 438	o32	pidfd_getfd			sys_pidfd_getfd
 439	o32	faccessat2			sys_faccessat2
 440	o32	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	o32	process_mrelease		sys_process_mrelease
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index f375ea528e59c..084e3ddba4346 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -438,3 +438,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 1275daec7fec3..1249444185b70 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -530,3 +530,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 28c1680004834..9f0ff9fb01b22 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -443,3 +443,5 @@
 438  common	pidfd_getfd		sys_pidfd_getfd			sys_pidfd_getfd
 439  common	faccessat2		sys_faccessat2			sys_faccessat2
 440  common	process_madvise		sys_process_madvise		sys_process_madvise
+# 447 reserved for memfd_secret
+448  common	process_mrelease	sys_process_mrelease		sys_process_mrelease
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index 783738448ff55..8db35413732c7 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -443,3 +443,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 78160260991be..e451795515c85 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -486,3 +486,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 0d0667a9fbd70..5a6c85f13d998 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -445,3 +445,4 @@
 438	i386	pidfd_getfd		sys_pidfd_getfd
 439	i386	faccessat2		sys_faccessat2
 440	i386	process_madvise		sys_process_madvise
+448	i386	process_mrelease	sys_process_mrelease
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 379819244b91d..d31c21e3408df 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -362,6 +362,7 @@
 438	common	pidfd_getfd		sys_pidfd_getfd
 439	common	faccessat2		sys_faccessat2
 440	common	process_madvise		sys_process_madvise
+448	common	process_mrelease	sys_process_mrelease
 
 #
 # Due to a historical design error, certain syscalls are numbered differently
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index b070f272995d6..4fd1365f6aa2c 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -411,3 +411,5 @@
 438	common	pidfd_getfd			sys_pidfd_getfd
 439	common	faccessat2			sys_faccessat2
 440	common	process_madvise			sys_process_madvise
+# 447 reserved for memfd_secret
+448	common	process_mrelease		sys_process_mrelease
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index aea0ce9f3b745..112ff24ea927b 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -905,6 +905,7 @@ asmlinkage long sys_mincore(unsigned long start, size_t len,
 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
 			size_t vlen, int behavior, unsigned int flags);
+asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
 			unsigned long prot, unsigned long pgoff,
 			unsigned long flags);
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 2056318988f77..f7b735dabf357 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -859,9 +859,11 @@ __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
 __SYSCALL(__NR_faccessat2, sys_faccessat2)
 #define __NR_process_madvise 440
 __SYSCALL(__NR_process_madvise, sys_process_madvise)
+#define __NR_process_mrelease 448
+__SYSCALL(__NR_process_mrelease, sys_process_mrelease)
 
 #undef __NR_syscalls
-#define __NR_syscalls 441
+#define __NR_syscalls 449
 
 /*
  * 32 bit systems traditionally used different
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index f27ac94d5fa72..6b8203edf5310 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -281,6 +281,7 @@ COND_SYSCALL(munlockall);
 COND_SYSCALL(mincore);
 COND_SYSCALL(madvise);
 COND_SYSCALL(process_madvise);
+COND_SYSCALL(process_mrelease);
 COND_SYSCALL(remap_file_pages);
 COND_SYSCALL(mbind);
 COND_SYSCALL_COMPAT(mbind);
-- 
GitLab


From eb628f5264f0f4738824d345bb3589d276093382 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 28 Oct 2021 14:36:14 -0700
Subject: [PATCH 2528/4878] UPSTREAM: mm/oom_kill.c: prevent a race between
 process_mrelease and exit_mmap

Race between process_mrelease and exit_mmap, where free_pgtables is
called while __oom_reap_task_mm is in progress, leads to kernel crash
during pte_offset_map_lock call.  oom-reaper avoids this race by setting
MMF_OOM_VICTIM flag and causing exit_mmap to take and release
mmap_write_lock, blocking it until oom-reaper releases mmap_read_lock.

Reusing MMF_OOM_VICTIM for process_mrelease would be the simplest way to
fix this race, however that would be considered a hack.  Fix this race
by elevating mm->mm_users and preventing exit_mmap from executing until
process_mrelease is finished.  Patch slightly refactors the code to
adapt for a possible mmget_not_zero failure.

This fix has considerable negative impact on process_mrelease
performance and will likely need later optimization.

Link: https://lkml.kernel.org/r/20211022014658.263508-1-surenb@google.com
Fixes: 884a7e5964e0 ("mm: introduce process_mrelease system call")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Christian Brauner <christian@brauner.io>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 337546e83fc7e50917f44846beee936abb9c9f1f)

Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I7cf9c869faa7b746995a94ea93f6a617104385aa
---
 mm/oom_kill.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 8e2f0adc5da98..6fab04dd97f34 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -1200,7 +1200,7 @@ SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
 	struct task_struct *task;
 	struct task_struct *p;
 	unsigned int f_flags;
-	bool reap = true;
+	bool reap = false;
 	struct pid *pid;
 	long ret = 0;
 
@@ -1227,15 +1227,15 @@ SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
 		goto put_task;
 	}
 
-	mm = p->mm;
-	mmgrab(mm);
-
-	/* If the work has been done already, just exit with success */
-	if (test_bit(MMF_OOM_SKIP, &mm->flags))
-		reap = false;
-	else if (!task_will_free_mem(p)) {
-		reap = false;
-		ret = -EINVAL;
+	if (mmget_not_zero(p->mm)) {
+		mm = p->mm;
+		if (task_will_free_mem(p))
+			reap = true;
+		else {
+			/* Error only if the work has not been done already */
+			if (!test_bit(MMF_OOM_SKIP, &mm->flags))
+				ret = -EINVAL;
+		}
 	}
 	task_unlock(p);
 
@@ -1251,7 +1251,8 @@ SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
 	mmap_read_unlock(mm);
 
 drop_mm:
-	mmdrop(mm);
+	if (mm)
+		mmput(mm);
 put_task:
 	put_task_struct(task);
 put_pid:
-- 
GitLab


From 31ed633858d6074d769dfed0b84af2d67cc13e80 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Wed, 24 Nov 2021 15:59:05 -0800
Subject: [PATCH 2529/4878] FROMLIST: mm: protect free_pgtables with mmap_lock
 write lock in exit_mmap

oom-reaper and process_mrelease system call should protect against
races with exit_mmap which can destroy page tables while they
walk the VMA tree. oom-reaper protects from that race by setting
MMF_OOM_VICTIM and by relying on exit_mmap to set MMF_OOM_SKIP
before taking and releasing mmap_write_lock. process_mrelease has
to elevate mm->mm_users to prevent such race. Both oom-reaper and
process_mrelease hold mmap_read_lock when walking the VMA tree.
The locking rules and mechanisms could be simpler if exit_mmap takes
mmap_write_lock while executing destructive operations such as
free_pgtables.
Change exit_mmap to hold the mmap_write_lock when calling
free_pgtables. Operations like unmap_vmas() and unlock_range() are not
destructive and could run under mmap_read_lock but for simplicity we
take one mmap_write_lock during almost the entire operation. Note
also that because oom-reaper checks VM_LOCKED flag, unlock_range()
should not be allowed to race with it.
In most cases this lock should be uncontended. Previously, Kirill
reported ~4% regression caused by a similar change [1]. We reran the
same test and although the individual results are quite noisy, the
percentiles show lower regression with 1.6% being the worst case [2].
The change allows oom-reaper and process_mrelease to execute safely
under mmap_read_lock without worries that exit_mmap might destroy page
tables from under them.

[1] https://lore.kernel.org/all/20170725141723.ivukwhddk2voyhuc@node.shutemov.name/
[2] https://lore.kernel.org/all/CAJuCfpGC9-c9P40x7oy=jy5SphMcd0o0G_6U1-+JAziGKG6dGA@mail.gmail.com/

Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Link: https://lore.kernel.org/all/20211124235906.14437-1-surenb@google.com/

Bug: 130172058
Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ic87272d09a0b68a1b0e968e8f1a1510fd6fc776a
---
 mm/mmap.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index b1ca729a11f23..fe20804055a33 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -3295,10 +3295,9 @@ void exit_mmap(struct mm_struct *mm)
 		(void)__oom_reap_task_mm(mm);
 
 		set_bit(MMF_OOM_SKIP, &mm->flags);
-		mmap_write_lock(mm);
-		mmap_write_unlock(mm);
 	}
 
+	mmap_write_lock(mm);
 	if (mm->locked_vm) {
 		vma = mm->mmap;
 		while (vma) {
@@ -3311,8 +3310,11 @@ void exit_mmap(struct mm_struct *mm)
 	arch_exit_mmap(mm);
 
 	vma = mm->mmap;
-	if (!vma)	/* Can happen if dup_mmap() received an OOM */
+	if (!vma) {
+		/* Can happen if dup_mmap() received an OOM */
+		mmap_write_unlock(mm);
 		return;
+	}
 
 	lru_add_drain();
 	flush_cache_mm(mm);
@@ -3323,16 +3325,14 @@ void exit_mmap(struct mm_struct *mm)
 	free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, USER_PGTABLES_CEILING);
 	tlb_finish_mmu(&tlb, 0, -1);
 
-	/*
-	 * Walk the list again, actually closing and freeing it,
-	 * with preemption enabled, without holding any MM locks.
-	 */
+	/* Walk the list again, actually closing and freeing it. */
 	while (vma) {
 		if (vma->vm_flags & VM_ACCOUNT)
 			nr_accounted += vma_pages(vma);
 		vma = remove_vma(vma);
 		cond_resched();
 	}
+	mmap_write_unlock(mm);
 	vm_unacct_memory(nr_accounted);
 }
 
-- 
GitLab


From 01e44cb8bd4407989abcead19f69999ffa28bdb6 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 19 Nov 2021 14:51:26 -0800
Subject: [PATCH 2530/4878] FROMLIST: mm/oom_kill: allow process_mrelease to
 run under mmap_lock protection

With exit_mmap holding mmap_write_lock during free_pgtables call,
process_mrelease does not need to elevate mm->mm_users in order to
prevent exit_mmap from destrying pagetables while __oom_reap_task_mm
is walking the VMA tree. The change prevents process_mrelease from
calling the last mmput, which can lead to waiting for IO completion
in exit_aio.

Fixes: 337546e83fc7 ("mm/oom_kill.c: prevent a race between process_mrelease and exit_mmap")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>

Link: https://lore.kernel.org/all/20211124235906.14437-2-surenb@google.com/

Bug: 130172058
Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I1e2728e0c477af9cc20e9e0b715ee67dee760618
---
 mm/oom_kill.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 6fab04dd97f34..885bcc96e06c7 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -1227,15 +1227,15 @@ SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
 		goto put_task;
 	}
 
-	if (mmget_not_zero(p->mm)) {
-		mm = p->mm;
-		if (task_will_free_mem(p))
-			reap = true;
-		else {
-			/* Error only if the work has not been done already */
-			if (!test_bit(MMF_OOM_SKIP, &mm->flags))
-				ret = -EINVAL;
-		}
+	mm = p->mm;
+	mmgrab(mm);
+
+	if (task_will_free_mem(p))
+		reap = true;
+	else {
+		/* Error only if the work has not been done already */
+		if (!test_bit(MMF_OOM_SKIP, &mm->flags))
+			ret = -EINVAL;
 	}
 	task_unlock(p);
 
@@ -1246,13 +1246,16 @@ SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
 		ret = -EINTR;
 		goto drop_mm;
 	}
-	if (!__oom_reap_task_mm(mm))
+	/*
+	 * Check MMF_OOM_SKIP again under mmap_read_lock protection to ensure
+	 * possible change in exit_mmap is seen
+	 */
+	if (!test_bit(MMF_OOM_SKIP, &mm->flags) && !__oom_reap_task_mm(mm))
 		ret = -EAGAIN;
 	mmap_read_unlock(mm);
 
 drop_mm:
-	if (mm)
-		mmput(mm);
+	mmdrop(mm);
 put_task:
 	put_task_struct(task);
 put_pid:
-- 
GitLab


From 7237abf9f854d1cae5977ec774f40220f98b8495 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Mon, 15 Nov 2021 15:39:21 -0800
Subject: [PATCH 2531/4878] ANDROID: mm/oom_kill: allow process_mrelease
 reclaim memory in parallel with exit_mmap

To allow process_mrelease to reap targeted mm in parallel with exit_mmap
mark the victim with MMF_OOM_VICTIM flag.

Bug: 189803002
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I89cf5f8fbeeb18b93a340b9ebe7f200837ebe846
---
 mm/oom_kill.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 885bcc96e06c7..e722c6877faf3 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -1230,6 +1230,12 @@ SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
 	mm = p->mm;
 	mmgrab(mm);
 
+	/*
+	 * If we are too late and exit_mmap already checked mm_is_oom_victim
+	 * then will block on mmap_read_lock until exit_mmap releases mmap_lock
+	 */
+	set_bit(MMF_OOM_VICTIM, &mm->flags);
+
 	if (task_will_free_mem(p))
 		reap = true;
 	else {
-- 
GitLab


From 5214f6c1c4affa3ea49dc082a3358d1a7ca83b65 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:08:01 +0000
Subject: [PATCH 2532/4878] Revert "FROMLIST: KVM: arm64: pkvm: Unshare guest
 structs during teardown"

This reverts commit bcf3fd91beb9146f28bd2a95838a247e8df56ae9.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I51bd7eff34a9345275ca0957082456b5ec5c9d3f
---
 arch/arm64/include/asm/kvm_host.h |  2 --
 arch/arm64/include/asm/kvm_mmu.h  |  1 -
 arch/arm64/kvm/arm.c              |  2 --
 arch/arm64/kvm/fpsimd.c           | 26 -------------------
 arch/arm64/kvm/mmu.c              | 42 -------------------------------
 arch/arm64/kvm/reset.c            |  8 +-----
 6 files changed, 1 insertion(+), 80 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 8a1fa7d46d81f..9380ce7cb4ace 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -333,7 +333,6 @@ struct kvm_vcpu_arch {
 	struct kvm_guest_debug_arch external_debug_state;
 
 	struct user_fpsimd_state *host_fpsimd_state;	/* hyp VA */
-	struct task_struct *parent_task;
 
 	struct {
 		/* {Break,watch}point registers */
@@ -761,7 +760,6 @@ void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu);
-void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu);
 
 static inline bool kvm_pmu_counter_deferred(struct perf_event_attr *attr)
 {
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 81839e9a8a242..185d0f62b7242 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -151,7 +151,6 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
 #include <asm/stage2_pgtable.h>
 
 int kvm_share_hyp(void *from, void *to);
-void kvm_unshare_hyp(void *from, void *to);
 int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 			   void __iomem **kaddr,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 49ee57d4141bc..1e6b7aee6e69d 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -187,8 +187,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 		}
 	}
 	atomic_set(&kvm->online_vcpus, 0);
-
-	kvm_unshare_hyp(kvm, kvm + 1);
 }
 
 int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index a5a4ef0285e70..6f3f9ce29353e 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -14,19 +14,6 @@
 #include <asm/kvm_mmu.h>
 #include <asm/sysreg.h>
 
-void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu)
-{
-	struct task_struct *p = vcpu->arch.parent_task;
-	struct user_fpsimd_state *fpsimd;
-
-	if (!is_protected_kvm_enabled() || !p)
-		return;
-
-	fpsimd = &p->thread.uw.fpsimd_state;
-	kvm_unshare_hyp(fpsimd, fpsimd + 1);
-	put_task_struct(p);
-}
-
 /*
  * Called on entry to KVM_RUN unless this vcpu previously ran at least
  * once and the most recent prior KVM_RUN for this vcpu was called from
@@ -42,25 +29,12 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
-	kvm_vcpu_unshare_task_fp(vcpu);
-
 	/* Make sure the host task fpsimd state is visible to hyp: */
 	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
 	if (ret)
 		goto error;
 
 	vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
-
-	/*
-	 * We need to keep current's task_struct pinned until its data has been
-	 * unshared with the hypervisor to make sure it is not re-used by the
-	 * kernel and donated to someone else while already shared -- see
-	 * kvm_vcpu_unshare_task_fp() for the matching put_task_struct().
-	 */
-	if (is_protected_kvm_enabled()) {
-		get_task_struct(current);
-		vcpu->arch.parent_task = current;
-	}
 error:
 	return ret;
 }
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 055094a3cd8d7..4d024a4359757 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -344,32 +344,6 @@ unlock:
 	return ret;
 }
 
-static int unshare_pfn_hyp(u64 pfn)
-{
-	struct rb_node **node, *parent;
-	struct hyp_shared_pfn *this;
-	int ret = 0;
-
-	mutex_lock(&hyp_shared_pfns_lock);
-	this = find_shared_pfn(pfn, &node, &parent);
-	if (WARN_ON(!this)) {
-		ret = -EINVAL;
-		goto unlock;
-	}
-
-	this->count--;
-	if (this->count)
-		goto unlock;
-
-	rb_erase(&this->node, &hyp_shared_pfns);
-	kfree(this);
-	ret = kvm_call_hyp_nvhe(__pkvm_host_unshare_hyp, pfn, 1);
-unlock:
-	mutex_unlock(&hyp_shared_pfns_lock);
-
-	return ret;
-}
-
 int kvm_share_hyp(void *from, void *to)
 {
 	phys_addr_t start, end, cur;
@@ -402,22 +376,6 @@ int kvm_share_hyp(void *from, void *to)
 	return 0;
 }
 
-void kvm_unshare_hyp(void *from, void *to)
-{
-	phys_addr_t start, end, cur;
-	u64 pfn;
-
-	if (is_kernel_in_hyp_mode() || kvm_host_owns_hyp_mappings() || !from)
-		return;
-
-	start = ALIGN_DOWN(__pa(from), PAGE_SIZE);
-	end = PAGE_ALIGN(__pa(to));
-	for (cur = start; cur < end; cur += PAGE_SIZE) {
-		pfn = __phys_to_pfn(cur);
-		WARN_ON(unshare_pfn_hyp(pfn));
-	}
-}
-
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 750ad7d8fb7b1..66b749c7212e6 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -150,13 +150,7 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu)
 
 void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu)
 {
-	void *sve_state = vcpu->arch.sve_state;
-
-	kvm_vcpu_unshare_task_fp(vcpu);
-	kvm_unshare_hyp(vcpu, vcpu + 1);
-	if (sve_state)
-		kvm_unshare_hyp(sve_state, sve_state + vcpu_sve_state_size(vcpu));
-	kfree(sve_state);
+	kfree(vcpu->arch.sve_state);
 }
 
 static void kvm_vcpu_reset_sve(struct kvm_vcpu *vcpu)
-- 
GitLab


From 870805293f9af69d3838fd3569dfdd68d993e788 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:08:32 +0000
Subject: [PATCH 2533/4878] Revert "FROMLIST: KVM: arm64: Expose unshare
 hypercall to the host"

This reverts commit fee11d0f41b971f05bb5c8e298c1808d50c81dea.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I4b61e149f82874557904f6e6b09421f294f996fe
---
 arch/arm64/include/asm/kvm_asm.h              |  1 -
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 -
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  8 -----
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 33 -------------------
 4 files changed, 43 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index edb496f67bfd9..006ca3af082af 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -62,7 +62,6 @@ enum __kvm_host_smccc_func {
 
 	/* Hypercalls available after pKVM finalisation */
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
-	__KVM_HOST_SMCCC_FUNC___pkvm_host_unshare_hyp,
 	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 80e99836eac79..56445586c7551 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -55,7 +55,6 @@ extern const u8 pkvm_hyp_id;
 
 int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
-int __pkvm_host_unshare_hyp(u64 pfn);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 7600f8bf5b836..75ce2547cd6e1 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -150,13 +150,6 @@ static void handle___pkvm_host_share_hyp(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_host_share_hyp(pfn);
 }
 
-static void handle___pkvm_host_unshare_hyp(struct kvm_cpu_context *host_ctxt)
-{
-	DECLARE_REG(u64, pfn, host_ctxt, 1);
-
-	cpu_reg(host_ctxt, 1) = __pkvm_host_unshare_hyp(pfn);
-}
-
 static void handle___pkvm_create_private_mapping(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(phys_addr_t, phys, host_ctxt, 1);
@@ -194,7 +187,6 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_prot_finalize),
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
-	HANDLE_FUNC(__pkvm_host_unshare_hyp),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
 	HANDLE_FUNC(__kvm_flush_vm_context),
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 860d02c3cb4c0..f6309f87c0866 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -821,36 +821,3 @@ int __pkvm_host_share_hyp(u64 pfn)
 
 	return ret;
 }
-
-int __pkvm_host_unshare_hyp(u64 pfn)
-{
-	int ret;
-	u64 host_addr = hyp_pfn_to_phys(pfn);
-	u64 hyp_addr = (u64)__hyp_va(host_addr);
-	struct pkvm_mem_share share = {
-		.tx	= {
-			.nr_pages	= 1,
-			.initiator	= {
-				.id	= PKVM_ID_HOST,
-				.addr	= host_addr,
-				.host	= {
-					.completer_addr = hyp_addr,
-				},
-			},
-			.completer	= {
-				.id	= PKVM_ID_HYP,
-			},
-		},
-		.prot	= PAGE_HYP,
-	};
-
-	host_lock_component();
-	hyp_lock_component();
-
-	ret = do_unshare(&share);
-
-	hyp_unlock_component();
-	host_unlock_component();
-
-	return ret;
-}
-- 
GitLab


From 60fd78d4ca5e1b537b827d434ca8ad423687350a Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:08:45 +0000
Subject: [PATCH 2534/4878] Revert "FROMLIST: KVM: arm64: Implement
 do_unshare() helper for unsharing memory"

This reverts commit 0a4821ecc2f0e16b46f83d9ef29602e1b987777f.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I199989c20d63e61f167fa55f270147e10cc64016
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 115 --------------------------
 1 file changed, 115 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index f6309f87c0866..8d39c5d64cff9 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -538,16 +538,6 @@ static int host_request_owned_transition(u64 *completer_addr,
 	return __host_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
 }
 
-static int host_request_unshare(u64 *completer_addr,
-				const struct pkvm_mem_transition *tx)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-	u64 addr = tx->initiator.addr;
-
-	*completer_addr = tx->initiator.host.completer_addr;
-	return __host_check_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
-}
-
 static int host_initiate_share(u64 *completer_addr,
 			       const struct pkvm_mem_transition *tx)
 {
@@ -558,16 +548,6 @@ static int host_initiate_share(u64 *completer_addr,
 	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
 }
 
-static int host_initiate_unshare(u64 *completer_addr,
-				 const struct pkvm_mem_transition *tx)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-	u64 addr = tx->initiator.addr;
-
-	*completer_addr = tx->initiator.host.completer_addr;
-	return __host_set_page_state_range(addr, size, PKVM_PAGE_OWNED);
-}
-
 static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
 {
 	if (!kvm_pte_valid(pte))
@@ -608,17 +588,6 @@ static int hyp_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
 }
 
-static int hyp_ack_unshare(u64 addr, const struct pkvm_mem_transition *tx)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-
-	if (__hyp_ack_skip_pgtable_check(tx))
-		return 0;
-
-	return __hyp_check_page_state_range(addr, size,
-					    PKVM_PAGE_SHARED_BORROWED);
-}
-
 static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 			      enum kvm_pgtable_prot perms)
 {
@@ -629,14 +598,6 @@ static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return pkvm_create_mappings_locked(start, end, prot);
 }
 
-static int hyp_complete_unshare(u64 addr, const struct pkvm_mem_transition *tx)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-	int ret = kvm_pgtable_hyp_unmap(&pkvm_pgtable, addr, size);
-
-	return (ret != size) ? -EFAULT : 0;
-}
-
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -713,82 +674,6 @@ static int do_share(struct pkvm_mem_share *share)
 	return WARN_ON(__do_share(share));
 }
 
-static int check_unshare(struct pkvm_mem_share *share)
-{
-	const struct pkvm_mem_transition *tx = &share->tx;
-	u64 completer_addr;
-	int ret;
-
-	switch (tx->initiator.id) {
-	case PKVM_ID_HOST:
-		ret = host_request_unshare(&completer_addr, tx);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	if (ret)
-		return ret;
-
-	switch (tx->completer.id) {
-	case PKVM_ID_HYP:
-		ret = hyp_ack_unshare(completer_addr, tx);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static int __do_unshare(struct pkvm_mem_share *share)
-{
-	const struct pkvm_mem_transition *tx = &share->tx;
-	u64 completer_addr;
-	int ret;
-
-	switch (tx->initiator.id) {
-	case PKVM_ID_HOST:
-		ret = host_initiate_unshare(&completer_addr, tx);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	if (ret)
-		return ret;
-
-	switch (tx->completer.id) {
-	case PKVM_ID_HYP:
-		ret = hyp_complete_unshare(completer_addr, tx);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-/*
- * do_unshare():
- *
- * The page owner revokes access from another component for a range of
- * pages which were previously shared using do_share().
- *
- * Initiator: SHARED_OWNED	=> OWNED
- * Completer: SHARED_BORROWED	=> NOPAGE
- */
-static int do_unshare(struct pkvm_mem_share *share)
-{
-	int ret;
-
-	ret = check_unshare(share);
-	if (ret)
-		return ret;
-
-	return WARN_ON(__do_unshare(share));
-}
-
 int __pkvm_host_share_hyp(u64 pfn)
 {
 	int ret;
-- 
GitLab


From 3531ef4fffb559b8df4f55c02bb741c9fe02aede Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:08:51 +0000
Subject: [PATCH 2535/4878] Revert "BACKPORT: FROMLIST: KVM: arm64: Implement
 __pkvm_host_share_hyp() using do_share()"

This reverts commit 50e7557b36f69a3e7fd80024e53a961633e3da6a.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Iad125052e89012b0ad374a2874a83ef608e86141
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 121 +++++++++++++++++++-------
 1 file changed, 88 insertions(+), 33 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 8d39c5d64cff9..f8d072dbac693 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -390,6 +390,94 @@ unlock:
 	return ret;
 }
 
+static inline bool check_prot(enum kvm_pgtable_prot prot,
+			      enum kvm_pgtable_prot required,
+			      enum kvm_pgtable_prot denied)
+{
+	return (prot & (required | denied)) == required;
+}
+
+int __pkvm_host_share_hyp(u64 pfn)
+{
+	phys_addr_t addr = hyp_pfn_to_phys(pfn);
+	enum kvm_pgtable_prot prot, cur;
+	void *virt = __hyp_va(addr);
+	enum pkvm_page_state state;
+	kvm_pte_t pte;
+	int ret;
+
+	if (!addr_is_memory(addr))
+		return -EINVAL;
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
+	if (ret)
+		goto unlock;
+	if (!pte)
+		goto map_shared;
+
+	/*
+	 * Check attributes in the host stage-2 PTE. We need the page to be:
+	 *  - mapped RWX as we're sharing memory;
+	 *  - not borrowed, as that implies absence of ownership.
+	 * Otherwise, we can't let it got through
+	 */
+	cur = kvm_pgtable_stage2_pte_prot(pte);
+	prot = pkvm_mkstate(0, PKVM_PAGE_SHARED_BORROWED);
+	if (!check_prot(cur, PKVM_HOST_MEM_PROT, prot)) {
+		ret = -EPERM;
+		goto unlock;
+	}
+
+	state = pkvm_getstate(cur);
+	if (state == PKVM_PAGE_OWNED)
+		goto map_shared;
+
+	/*
+	 * Tolerate double-sharing the same page, but this requires
+	 * cross-checking the hypervisor stage-1.
+	 */
+	if (state != PKVM_PAGE_SHARED_OWNED) {
+		ret = -EPERM;
+		goto unlock;
+	}
+
+	ret = kvm_pgtable_get_leaf(&pkvm_pgtable, (u64)virt, &pte, NULL);
+	if (ret)
+		goto unlock;
+
+	/*
+	 * If the page has been shared with the hypervisor, it must be
+	 * already mapped as SHARED_BORROWED in its stage-1.
+	 */
+	cur = kvm_pgtable_hyp_pte_prot(pte);
+	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_SHARED_BORROWED);
+	if (!check_prot(cur, prot, ~prot))
+		ret = -EPERM;
+	goto unlock;
+
+map_shared:
+	/*
+	 * If the page is not yet shared, adjust mappings in both page-tables
+	 * while both locks are held.
+	 */
+	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_SHARED_BORROWED);
+	ret = pkvm_create_mappings_locked(virt, virt + PAGE_SIZE, prot);
+	BUG_ON(ret);
+
+	prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, PKVM_PAGE_SHARED_OWNED);
+	ret = host_stage2_idmap_locked(addr, PAGE_SIZE, prot);
+	BUG_ON(ret);
+
+unlock:
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
+
 static int host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 				  phys_addr_t addr)
 {
@@ -673,36 +761,3 @@ static int do_share(struct pkvm_mem_share *share)
 
 	return WARN_ON(__do_share(share));
 }
-
-int __pkvm_host_share_hyp(u64 pfn)
-{
-	int ret;
-	u64 host_addr = hyp_pfn_to_phys(pfn);
-	u64 hyp_addr = (u64)__hyp_va(host_addr);
-	struct pkvm_mem_share share = {
-		.tx	= {
-			.nr_pages	= 1,
-			.initiator	= {
-				.id	= PKVM_ID_HOST,
-				.addr	= host_addr,
-				.host	= {
-					.completer_addr = hyp_addr,
-				},
-			},
-			.completer	= {
-				.id	= PKVM_ID_HYP,
-			},
-		},
-		.prot	= PAGE_HYP,
-	};
-
-	host_lock_component();
-	hyp_lock_component();
-
-	ret = do_share(&share);
-
-	hyp_unlock_component();
-	host_unlock_component();
-
-	return ret;
-}
-- 
GitLab


From 654cfb96f34bc646317328d0ce644f1da7e893b7 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:08:55 +0000
Subject: [PATCH 2536/4878] Revert "FROMLIST: KVM: arm64: Implement do_share()
 helper for sharing memory"

This reverts commit 455e17002b07cffdcb28381c1945a0de1595a726.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Ibbcf494525b1ee746e5e2019172db66edc7276e9
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 237 --------------------------
 1 file changed, 237 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index f8d072dbac693..edf3624598740 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -524,240 +524,3 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 
 	BUG_ON(ret && ret != -EAGAIN);
 }
-
-/* This corresponds to locking order */
-enum pkvm_component_id {
-	PKVM_ID_HOST,
-	PKVM_ID_HYP,
-};
-
-struct pkvm_mem_transition {
-	u64				nr_pages;
-
-	struct {
-		enum pkvm_component_id	id;
-		/* Address in the initiator's address space */
-		u64			addr;
-
-		union {
-			struct {
-				/* Address in the completer's address space */
-				u64	completer_addr;
-			} host;
-		};
-	} initiator;
-
-	struct {
-		enum pkvm_component_id	id;
-	} completer;
-};
-
-struct pkvm_mem_share {
-	const struct pkvm_mem_transition	tx;
-	const enum kvm_pgtable_prot		prot;
-};
-
-struct check_walk_data {
-	enum pkvm_page_state	desired;
-	enum pkvm_page_state	(*get_page_state)(kvm_pte_t pte);
-};
-
-static int __check_page_state_visitor(u64 addr, u64 end, u32 level,
-				      kvm_pte_t *ptep,
-				      enum kvm_pgtable_walk_flags flag,
-				      void * const arg)
-{
-	struct check_walk_data *d = arg;
-	kvm_pte_t pte = *ptep;
-
-	if (kvm_pte_valid(pte) && !addr_is_memory(kvm_pte_to_phys(pte)))
-		return -EINVAL;
-
-	return d->get_page_state(pte) == d->desired ? 0 : -EPERM;
-}
-
-static int check_page_state_range(struct kvm_pgtable *pgt, u64 addr, u64 size,
-				  struct check_walk_data *data)
-{
-	struct kvm_pgtable_walker walker = {
-		.cb	= __check_page_state_visitor,
-		.arg	= data,
-		.flags	= KVM_PGTABLE_WALK_LEAF,
-	};
-
-	return kvm_pgtable_walk(pgt, addr, size, &walker);
-}
-
-static enum pkvm_page_state host_get_page_state(kvm_pte_t pte)
-{
-	if (!kvm_pte_valid(pte) && pte)
-		return PKVM_NOPAGE;
-
-	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
-}
-
-static int __host_check_page_state_range(u64 addr, u64 size,
-					 enum pkvm_page_state state)
-{
-	struct check_walk_data d = {
-		.desired	= state,
-		.get_page_state	= host_get_page_state,
-	};
-
-	hyp_assert_lock_held(&host_kvm.lock);
-	return check_page_state_range(&host_kvm.pgt, addr, size, &d);
-}
-
-static int __host_set_page_state_range(u64 addr, u64 size,
-				       enum pkvm_page_state state)
-{
-	enum kvm_pgtable_prot prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, state);
-
-	return host_stage2_idmap_locked(addr, size, prot);
-}
-
-static int host_request_owned_transition(u64 *completer_addr,
-					 const struct pkvm_mem_transition *tx)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-	u64 addr = tx->initiator.addr;
-
-	*completer_addr = tx->initiator.host.completer_addr;
-	return __host_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
-}
-
-static int host_initiate_share(u64 *completer_addr,
-			       const struct pkvm_mem_transition *tx)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-	u64 addr = tx->initiator.addr;
-
-	*completer_addr = tx->initiator.host.completer_addr;
-	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
-}
-
-static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
-{
-	if (!kvm_pte_valid(pte))
-		return PKVM_NOPAGE;
-
-	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
-}
-
-static int __hyp_check_page_state_range(u64 addr, u64 size,
-					enum pkvm_page_state state)
-{
-	struct check_walk_data d = {
-		.desired	= state,
-		.get_page_state	= hyp_get_page_state,
-	};
-
-	hyp_assert_lock_held(&pkvm_pgd_lock);
-	return check_page_state_range(&pkvm_pgtable, addr, size, &d);
-}
-
-static bool __hyp_ack_skip_pgtable_check(const struct pkvm_mem_transition *tx)
-{
-	return !(IS_ENABLED(CONFIG_NVHE_EL2_DEBUG) ||
-		 tx->initiator.id != PKVM_ID_HOST);
-}
-
-static int hyp_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
-			 enum kvm_pgtable_prot perms)
-{
-	u64 size = tx->nr_pages * PAGE_SIZE;
-
-	if (perms != PAGE_HYP)
-		return -EPERM;
-
-	if (__hyp_ack_skip_pgtable_check(tx))
-		return 0;
-
-	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
-}
-
-static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
-			      enum kvm_pgtable_prot perms)
-{
-	void *start = (void *)addr, *end = start + (tx->nr_pages * PAGE_SIZE);
-	enum kvm_pgtable_prot prot;
-
-	prot = pkvm_mkstate(perms, PKVM_PAGE_SHARED_BORROWED);
-	return pkvm_create_mappings_locked(start, end, prot);
-}
-
-static int check_share(struct pkvm_mem_share *share)
-{
-	const struct pkvm_mem_transition *tx = &share->tx;
-	u64 completer_addr;
-	int ret;
-
-	switch (tx->initiator.id) {
-	case PKVM_ID_HOST:
-		ret = host_request_owned_transition(&completer_addr, tx);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	if (ret)
-		return ret;
-
-	switch (tx->completer.id) {
-	case PKVM_ID_HYP:
-		ret = hyp_ack_share(completer_addr, tx, share->prot);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static int __do_share(struct pkvm_mem_share *share)
-{
-	const struct pkvm_mem_transition *tx = &share->tx;
-	u64 completer_addr;
-	int ret;
-
-	switch (tx->initiator.id) {
-	case PKVM_ID_HOST:
-		ret = host_initiate_share(&completer_addr, tx);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	if (ret)
-		return ret;
-
-	switch (tx->completer.id) {
-	case PKVM_ID_HYP:
-		ret = hyp_complete_share(completer_addr, tx, share->prot);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-/*
- * do_share():
- *
- * The page owner grants access to another component with a given set
- * of permissions.
- *
- * Initiator: OWNED	=> SHARED_OWNED
- * Completer: NOPAGE	=> SHARED_BORROWED
- */
-static int do_share(struct pkvm_mem_share *share)
-{
-	int ret;
-
-	ret = check_share(share);
-	if (ret)
-		return ret;
-
-	return WARN_ON(__do_share(share));
-}
-- 
GitLab


From a5fa58c648eec3aac8aa1bbf2f464799c375016c Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:08:59 +0000
Subject: [PATCH 2537/4878] Revert "BACKPORT: FROMLIST: KVM: arm64: Introduce
 wrappers for host and hyp spin lock accessors"

This reverts commit fb29cc8de3dec6557f49d87d265c7af48583d6ac.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Ia67b33b36bcaf49a77b654ff62fbd604eaa959fc
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 32 +++++----------------------
 1 file changed, 6 insertions(+), 26 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index edf3624598740..8a344c8b7fe8d 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -29,26 +29,6 @@ static struct hyp_pool host_s2_pool;
 
 const u8 pkvm_hyp_id = 1;
 
-static void host_lock_component(void)
-{
-	hyp_spin_lock(&host_kvm.lock);
-}
-
-static void host_unlock_component(void)
-{
-	hyp_spin_unlock(&host_kvm.lock);
-}
-
-static void hyp_lock_component(void)
-{
-	hyp_spin_lock(&pkvm_pgd_lock);
-}
-
-static void hyp_unlock_component(void)
-{
-	hyp_spin_unlock(&pkvm_pgd_lock);
-}
-
 static void *host_s2_zalloc_pages_exact(size_t size)
 {
 	void *addr = hyp_alloc_pages(&host_s2_pool, get_order(size));
@@ -378,14 +358,14 @@ static int host_stage2_idmap(u64 addr)
 			return ret;
 	}
 
-	host_lock_component();
+	hyp_spin_lock(&host_kvm.lock);
 	ret = host_stage2_adjust_range(addr, &range);
 	if (ret)
 		goto unlock;
 
 	ret = host_stage2_idmap_locked(range.start, range.end - range.start, prot);
 unlock:
-	host_unlock_component();
+	hyp_spin_unlock(&host_kvm.lock);
 
 	return ret;
 }
@@ -409,8 +389,8 @@ int __pkvm_host_share_hyp(u64 pfn)
 	if (!addr_is_memory(addr))
 		return -EINVAL;
 
-	host_lock_component();
-	hyp_lock_component();
+	hyp_spin_lock(&host_kvm.lock);
+	hyp_spin_lock(&pkvm_pgd_lock);
 
 	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
 	if (ret)
@@ -472,8 +452,8 @@ map_shared:
 	BUG_ON(ret);
 
 unlock:
-	hyp_unlock_component();
-	host_unlock_component();
+	hyp_spin_unlock(&pkvm_pgd_lock);
+	hyp_spin_unlock(&host_kvm.lock);
 
 	return ret;
 }
-- 
GitLab


From 883baeb55aa4deb3f550c0c2be4d9fe5352034b2 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:04 +0000
Subject: [PATCH 2538/4878] Revert "FROMLIST: KVM: arm64: Extend
 pkvm_page_state enumeration to handle absent pages"

This reverts commit f80bdbb276ec70c1a5386ac665aafc392984c2bc.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I81ee72a29d8884474b17e944183e9d3372dfdab8
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 56445586c7551..b58c910babafd 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -24,11 +24,6 @@ enum pkvm_page_state {
 	PKVM_PAGE_OWNED			= 0ULL,
 	PKVM_PAGE_SHARED_OWNED		= KVM_PGTABLE_PROT_SW0,
 	PKVM_PAGE_SHARED_BORROWED	= KVM_PGTABLE_PROT_SW1,
-	__PKVM_PAGE_RESERVED		= KVM_PGTABLE_PROT_SW0 |
-					  KVM_PGTABLE_PROT_SW1,
-
-	/* Meta-states which aren't encoded directly in the PTE's SW bits */
-	PKVM_NOPAGE,
 };
 
 #define PKVM_PAGE_STATE_PROT_MASK	(KVM_PGTABLE_PROT_SW0 | KVM_PGTABLE_PROT_SW1)
-- 
GitLab


From 2c2cdc03588bff476828add7d5b161833eefeb4c Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:09 +0000
Subject: [PATCH 2539/4878] Revert "FROMLIST: KVM: arm64: pkvm: Refcount the
 pages shared with EL2"

This reverts commit 33fa24cc3b40815cbf07f2ee1929a3c814042afc.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I66488e19919bc3714c54874ac1918e8a1fd119b4
---
 arch/arm64/kvm/mmu.c | 78 ++++++--------------------------------------
 1 file changed, 10 insertions(+), 68 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 4d024a4359757..53ecdc5d0b505 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -284,72 +284,23 @@ static phys_addr_t kvm_kaddr_to_phys(void *kaddr)
 	}
 }
 
-struct hyp_shared_pfn {
-	u64 pfn;
-	int count;
-	struct rb_node node;
-};
-
-static DEFINE_MUTEX(hyp_shared_pfns_lock);
-static struct rb_root hyp_shared_pfns = RB_ROOT;
-
-static struct hyp_shared_pfn *find_shared_pfn(u64 pfn, struct rb_node ***node,
-					      struct rb_node **parent)
-{
-	struct hyp_shared_pfn *this;
-
-	*node = &hyp_shared_pfns.rb_node;
-	*parent = NULL;
-	while (**node) {
-		this = container_of(**node, struct hyp_shared_pfn, node);
-		*parent = **node;
-		if (this->pfn < pfn)
-			*node = &((**node)->rb_left);
-		else if (this->pfn > pfn)
-			*node = &((**node)->rb_right);
-		else
-			return this;
-	}
-
-	return NULL;
-}
-
-static int share_pfn_hyp(u64 pfn)
+static int pkvm_share_hyp(phys_addr_t start, phys_addr_t end)
 {
-	struct rb_node **node, *parent;
-	struct hyp_shared_pfn *this;
-	int ret = 0;
-
-	mutex_lock(&hyp_shared_pfns_lock);
-	this = find_shared_pfn(pfn, &node, &parent);
-	if (this) {
-		this->count++;
-		goto unlock;
-	}
+	phys_addr_t addr;
+	int ret;
 
-	this = kzalloc(sizeof(*this), GFP_KERNEL);
-	if (!this) {
-		ret = -ENOMEM;
-		goto unlock;
+	for (addr = ALIGN_DOWN(start, PAGE_SIZE); addr < end; addr += PAGE_SIZE) {
+		ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp,
+					__phys_to_pfn(addr));
+		if (ret)
+			return ret;
 	}
 
-	this->pfn = pfn;
-	this->count = 1;
-	rb_link_node(&this->node, parent, node);
-	rb_insert_color(&this->node, &hyp_shared_pfns);
-	ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp, pfn, 1);
-unlock:
-	mutex_unlock(&hyp_shared_pfns_lock);
-
-	return ret;
+	return 0;
 }
 
 int kvm_share_hyp(void *from, void *to)
 {
-	phys_addr_t start, end, cur;
-	u64 pfn;
-	int ret;
-
 	if (is_kernel_in_hyp_mode())
 		return 0;
 
@@ -364,16 +315,7 @@ int kvm_share_hyp(void *from, void *to)
 	if (kvm_host_owns_hyp_mappings())
 		return create_hyp_mappings(from, to, PAGE_HYP);
 
-	start = ALIGN_DOWN(__pa(from), PAGE_SIZE);
-	end = PAGE_ALIGN(__pa(to));
-	for (cur = start; cur < end; cur += PAGE_SIZE) {
-		pfn = __phys_to_pfn(cur);
-		ret = share_pfn_hyp(pfn);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
+	return pkvm_share_hyp(__pa(from), __pa(to));
 }
 
 /**
-- 
GitLab


From 53d2e706679c140b1d22c980bea8f23d00a6bce1 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:14 +0000
Subject: [PATCH 2540/4878] Revert "FROMLIST: KVM: arm64: Introduce
 kvm_share_hyp()"

This reverts commit 21fb63c7099b2286d5e8303aa86d85debb74cb3e.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I042fbb20865571916ba90684ffbbefb980bfa0ef
---
 arch/arm64/include/asm/kvm_mmu.h |  1 -
 arch/arm64/kvm/arm.c             |  4 ++--
 arch/arm64/kvm/fpsimd.c          |  2 +-
 arch/arm64/kvm/mmu.c             | 27 ++++++---------------------
 arch/arm64/kvm/reset.c           |  2 +-
 5 files changed, 10 insertions(+), 26 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 185d0f62b7242..02d3788877438 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -150,7 +150,6 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
 #include <asm/kvm_pgtable.h>
 #include <asm/stage2_pgtable.h>
 
-int kvm_share_hyp(void *from, void *to);
 int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 			   void __iomem **kaddr,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 1e6b7aee6e69d..24f26da55e1c0 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -145,7 +145,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	if (ret)
 		return ret;
 
-	ret = kvm_share_hyp(kvm, kvm + 1);
+	ret = create_hyp_mappings(kvm, kvm + 1, PAGE_HYP);
 	if (ret)
 		goto out_free_stage2_pgd;
 
@@ -347,7 +347,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
 	if (err)
 		return err;
 
-	return kvm_share_hyp(vcpu, vcpu + 1);
+	return create_hyp_mappings(vcpu, vcpu + 1, PAGE_HYP);
 }
 
 void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index 6f3f9ce29353e..ee3291de04be5 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -30,7 +30,7 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
 	/* Make sure the host task fpsimd state is visible to hyp: */
-	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
+	ret = create_hyp_mappings(fpsimd, fpsimd + 1, PAGE_HYP);
 	if (ret)
 		goto error;
 
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 53ecdc5d0b505..bb15a6643b899 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -299,25 +299,6 @@ static int pkvm_share_hyp(phys_addr_t start, phys_addr_t end)
 	return 0;
 }
 
-int kvm_share_hyp(void *from, void *to)
-{
-	if (is_kernel_in_hyp_mode())
-		return 0;
-
-	/*
-	 * The share hcall maps things in the 'fixed-offset' region of the hyp
-	 * VA space, so we can only share physically contiguous data-structures
-	 * for now.
-	 */
-	if (is_vmalloc_addr(from) || is_vmalloc_addr(to))
-		return -EINVAL;
-
-	if (kvm_host_owns_hyp_mappings())
-		return create_hyp_mappings(from, to, PAGE_HYP);
-
-	return pkvm_share_hyp(__pa(from), __pa(to));
-}
-
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
@@ -338,8 +319,12 @@ int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot)
 	if (is_kernel_in_hyp_mode())
 		return 0;
 
-	if (!kvm_host_owns_hyp_mappings())
-		return -EPERM;
+	if (!kvm_host_owns_hyp_mappings()) {
+		if (WARN_ON(prot != PAGE_HYP))
+			return -EPERM;
+		return pkvm_share_hyp(kvm_kaddr_to_phys(from),
+				      kvm_kaddr_to_phys(to));
+	}
 
 	start = start & PAGE_MASK;
 	end = PAGE_ALIGN(end);
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 66b749c7212e6..553334e59d1e3 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -113,7 +113,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 	if (!buf)
 		return -ENOMEM;
 
-	ret = kvm_share_hyp(buf, buf + reg_sz);
+	ret = create_hyp_mappings(buf, buf + reg_sz, PAGE_HYP);
 	if (ret) {
 		kfree(buf);
 		return ret;
-- 
GitLab


From b9efceca1006adf7081dd4211a6754b55c9ecf28 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:19 +0000
Subject: [PATCH 2541/4878] Revert "FROMLIST: KVM: arm64: Implement
 kvm_pgtable_hyp_unmap() at EL2"

This reverts commit 446ab9f9b4a50e612f3d561930340b1856363c0f.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Icae6c1df119bb9ba757c8c53e07729e7e7f4f16f
---
 arch/arm64/include/asm/kvm_pgtable.h | 21 ----------
 arch/arm64/kvm/hyp/pgtable.c         | 63 ----------------------------
 2 files changed, 84 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 9d076f36401d1..0277838295840 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -251,27 +251,6 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt);
 int kvm_pgtable_hyp_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys,
 			enum kvm_pgtable_prot prot);
 
-/**
- * kvm_pgtable_hyp_unmap() - Remove a mapping from a hypervisor stage-1 page-table.
- * @pgt:	Page-table structure initialised by kvm_pgtable_hyp_init().
- * @addr:	Virtual address from which to remove the mapping.
- * @size:	Size of the mapping.
- *
- * The offset of @addr within a page is ignored, @size is rounded-up to
- * the next page boundary and @phys is rounded-down to the previous page
- * boundary.
- *
- * TLB invalidation is performed for each page-table entry cleared during the
- * unmapping operation and the reference count for the page-table page
- * containing the cleared entry is decremented, with unreferenced pages being
- * freed. The unmapping operation will stop early if it encounters either an
- * invalid page-table entry or a valid block mapping which maps beyond the range
- * being unmapped.
- *
- * Return: Number of bytes unmapped, which may be 0.
- */
-u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size);
-
 /**
  * kvm_get_vtcr() - Helper to construct VTCR_EL2
  * @mmfr0:	Sanitized value of SYS_ID_AA64MMFR0_EL1 register.
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 6ad4cb2d69477..768a588351536 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -463,69 +463,6 @@ int kvm_pgtable_hyp_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys,
 	return ret;
 }
 
-struct hyp_unmap_data {
-	u64				unmapped;
-	struct kvm_pgtable_mm_ops	*mm_ops;
-};
-
-static int hyp_unmap_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
-			    enum kvm_pgtable_walk_flags flag, void * const arg)
-{
-	kvm_pte_t pte = *ptep, *childp = NULL;
-	u64 granule = kvm_granule_size(level);
-	struct hyp_unmap_data *data = arg;
-	struct kvm_pgtable_mm_ops *mm_ops = data->mm_ops;
-
-	if (!kvm_pte_valid(pte))
-		return -EINVAL;
-
-	if (kvm_pte_table(pte, level)) {
-		childp = kvm_pte_follow(pte, mm_ops);
-
-		if (mm_ops->page_count(childp) != 1)
-			return 0;
-
-		kvm_clear_pte(ptep);
-		dsb(ishst);
-		__tlbi_level(vae2is, __TLBI_VADDR(addr, 0), level);
-	} else {
-		if (end - addr < granule)
-			return -EINVAL;
-
-		kvm_clear_pte(ptep);
-		dsb(ishst);
-		__tlbi_level(vale2is, __TLBI_VADDR(addr, 0), level);
-		data->unmapped += granule;
-	}
-
-	dsb(ish);
-	isb();
-	mm_ops->put_page(ptep);
-
-	if (childp)
-		mm_ops->put_page(childp);
-
-	return 0;
-}
-
-u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
-{
-	struct hyp_unmap_data unmap_data = {
-		.mm_ops	= pgt->mm_ops,
-	};
-	struct kvm_pgtable_walker walker = {
-		.cb	= hyp_unmap_walker,
-		.arg	= &unmap_data,
-		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
-	};
-
-	if (!pgt->mm_ops->page_count)
-		return 0;
-
-	kvm_pgtable_walk(pgt, addr, size, &walker);
-	return unmap_data.unmapped;
-}
-
 int kvm_pgtable_hyp_init(struct kvm_pgtable *pgt, u32 va_bits,
 			 struct kvm_pgtable_mm_ops *mm_ops)
 {
-- 
GitLab


From e5432b22e142ccd298a6de973b035236d59c21c3 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:24 +0000
Subject: [PATCH 2542/4878] Revert "FROMLIST: KVM: arm64: Hook up
 ->page_count() for hypervisor stage-1 page-table"

This reverts commit 323950831990e43a3760373211498fa92c892a73.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I1cb6f413cf09a3b56a6e4fd2b83d28bfdc59984f
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 0f58e7ea6610b..56489ace5c773 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -274,7 +274,6 @@ void __noreturn __pkvm_init_finalise(void)
 		.virt_to_phys = hyp_virt_to_phys,
 		.get_page = hpool_get_page,
 		.put_page = hpool_put_page,
-		.page_count = hyp_page_count,
 	};
 	pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
 
-- 
GitLab


From 692851a12afc36d95ff52933f38766ad2ebf407c Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:28 +0000
Subject: [PATCH 2543/4878] Revert "BACKPORT: FROMLIST: KVM: arm64: Fixup hyp
 stage-1 refcount"

This reverts commit edffd3888c43b65d9092dbd6d40ea1e7a708ae2d.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I86105b5a7baeb1223501457666f0628fa25b55b8
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 56489ace5c773..6815581004e97 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -166,7 +166,6 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 					 enum kvm_pgtable_walk_flags flag,
 					 void * const arg)
 {
-	struct kvm_pgtable_mm_ops *mm_ops = arg;
 	enum kvm_pgtable_prot prot;
 	enum pkvm_page_state state;
 	kvm_pte_t pte = *ptep;
@@ -175,15 +174,6 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 	if (!kvm_pte_valid(pte))
 		return 0;
 
-	/*
-	 * Fix-up the refcount for the page-table pages as the early allocator
-	 * was unable to access the hyp_vmemmap and so the buddy allocator has
-	 * initialised the refcount to '1'.
-	 */
-	mm_ops->get_page(ptep);
-	if (flag != KVM_PGTABLE_WALK_LEAF)
-		return 0;
-
 	if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
 		return -EINVAL;
 
@@ -216,8 +206,7 @@ static int finalize_host_mappings(void)
 {
 	struct kvm_pgtable_walker walker = {
 		.cb	= finalize_host_mappings_walker,
-		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
-		.arg	= pkvm_pgtable.mm_ops,
+		.flags	= KVM_PGTABLE_WALK_LEAF,
 	};
 	int i, ret;
 
-- 
GitLab


From d76103f7919f922630489544d6c15f09d2893962 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:35 +0000
Subject: [PATCH 2544/4878] Revert "FROMLIST: KVM: arm64: Refcount hyp stage-1
 pgtable pages"

This reverts commit e96c599591e2dd3f2666927a02c7ee758f5e58e3.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I152dd0611638f7ceab361b586f3fa93172f17c9e
---
 arch/arm64/kvm/hyp/pgtable.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 768a588351536..f8ceebe4982eb 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -408,10 +408,8 @@ static bool hyp_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 		return false;
 
 	new = kvm_init_valid_leaf_pte(phys, data->attr, level);
-	if (hyp_pte_needs_update(old, new)) {
+	if (hyp_pte_needs_update(old, new))
 		smp_store_release(ptep, new);
-		data->mm_ops->get_page(ptep);
-	}
 
 	data->phys += granule;
 	return true;
@@ -435,7 +433,6 @@ static int hyp_map_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 		return -ENOMEM;
 
 	kvm_set_table_pte(ptep, childp, mm_ops);
-	mm_ops->get_page(ptep);
 	return 0;
 }
 
@@ -485,16 +482,8 @@ static int hyp_free_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 			   enum kvm_pgtable_walk_flags flag, void * const arg)
 {
 	struct kvm_pgtable_mm_ops *mm_ops = arg;
-	kvm_pte_t pte = *ptep;
-
-	if (!kvm_pte_valid(pte))
-		return 0;
-
-	mm_ops->put_page(ptep);
-
-	if (kvm_pte_table(pte, level))
-		mm_ops->put_page(kvm_pte_follow(pte, mm_ops));
 
+	mm_ops->put_page((void *)kvm_pte_follow(*ptep, mm_ops));
 	return 0;
 }
 
@@ -502,7 +491,7 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt)
 {
 	struct kvm_pgtable_walker walker = {
 		.cb	= hyp_free_walker,
-		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
+		.flags	= KVM_PGTABLE_WALK_TABLE_POST,
 		.arg	= pgt->mm_ops,
 	};
 
-- 
GitLab


From ecc14b0dae3b1b2e33e8a5cebbff3f116f89e649 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 6 Jan 2022 11:09:41 +0000
Subject: [PATCH 2545/4878] Revert "FROMLIST: KVM: arm64: Provide
 {get,put}_page() stubs for early hyp allocator"

This reverts commit b66c10e133975c2787c328a0bd233eee295b3126.

This will be replaced by a FROMGIT patch shortly.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I6e353b0243a86e5590ac0533e29f90dde9a418c4
---
 arch/arm64/kvm/hyp/nvhe/early_alloc.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/early_alloc.c b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
index 00de04153cc64..1306c430ab876 100644
--- a/arch/arm64/kvm/hyp/nvhe/early_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
@@ -43,9 +43,6 @@ void *hyp_early_alloc_page(void *arg)
 	return hyp_early_alloc_contig(1);
 }
 
-static void hyp_early_alloc_get_page(void *addr) { }
-static void hyp_early_alloc_put_page(void *addr) { }
-
 void hyp_early_alloc_init(void *virt, unsigned long size)
 {
 	base = cur = (unsigned long)virt;
@@ -54,6 +51,4 @@ void hyp_early_alloc_init(void *virt, unsigned long size)
 	hyp_early_alloc_mm_ops.zalloc_page = hyp_early_alloc_page;
 	hyp_early_alloc_mm_ops.phys_to_virt = hyp_phys_to_virt;
 	hyp_early_alloc_mm_ops.virt_to_phys = hyp_virt_to_phys;
-	hyp_early_alloc_mm_ops.get_page = hyp_early_alloc_get_page;
-	hyp_early_alloc_mm_ops.put_page = hyp_early_alloc_put_page;
 }
-- 
GitLab


From 10bcef57f39dd9e07a17b00f41894c6ea4d046c2 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 15 Dec 2021 16:12:18 +0000
Subject: [PATCH 2546/4878] FROMGIT: KVM: arm64: Provide {get,put}_page() stubs
 for early hyp allocator

In nVHE protected mode, the EL2 code uses a temporary allocator during
boot while re-creating its stage-1 page-table. Unfortunately, the
hyp_vmmemap is not ready to use at this stage, so refcounting pages
is not possible. That is not currently a problem because hyp stage-1
mappings are never removed, which implies refcounting of page-table
pages is unnecessary.

In preparation for allowing hypervisor stage-1 mappings to be removed,
provide stub implementations for {get,put}_page() in the early allocator.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-2-qperret@google.com
(cherry picked from commit 1fac3cfb9cc60d71b66ee5127b2bc5b5f9f79df8
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I9602cb4db9cef6f52e8beefa52e53cf71f2e0cd1
---
 arch/arm64/kvm/hyp/nvhe/early_alloc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/early_alloc.c b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
index 1306c430ab876..00de04153cc64 100644
--- a/arch/arm64/kvm/hyp/nvhe/early_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/early_alloc.c
@@ -43,6 +43,9 @@ void *hyp_early_alloc_page(void *arg)
 	return hyp_early_alloc_contig(1);
 }
 
+static void hyp_early_alloc_get_page(void *addr) { }
+static void hyp_early_alloc_put_page(void *addr) { }
+
 void hyp_early_alloc_init(void *virt, unsigned long size)
 {
 	base = cur = (unsigned long)virt;
@@ -51,4 +54,6 @@ void hyp_early_alloc_init(void *virt, unsigned long size)
 	hyp_early_alloc_mm_ops.zalloc_page = hyp_early_alloc_page;
 	hyp_early_alloc_mm_ops.phys_to_virt = hyp_phys_to_virt;
 	hyp_early_alloc_mm_ops.virt_to_phys = hyp_virt_to_phys;
+	hyp_early_alloc_mm_ops.get_page = hyp_early_alloc_get_page;
+	hyp_early_alloc_mm_ops.put_page = hyp_early_alloc_put_page;
 }
-- 
GitLab


From 1e0922b34131030351d7628a2f7e3bf854e687c9 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 15 Dec 2021 16:12:19 +0000
Subject: [PATCH 2547/4878] FROMGIT: KVM: arm64: Refcount hyp stage-1 pgtable
 pages

To prepare the ground for allowing hyp stage-1 mappings to be removed at
run-time, update the KVM page-table code to maintain a correct refcount
using the ->{get,put}_page() function callbacks.

Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-3-qperret@google.com
(cherry picked from commit 2ea2ff91e82293909d4879b0b4c6c94b02d52b7e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: Ic4ce9177a4381a01e1f2c3b00e9f376e14015718
---
 arch/arm64/kvm/hyp/pgtable.c | 39 ++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index f8ceebe4982eb..e50e9158fc563 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -383,21 +383,6 @@ enum kvm_pgtable_prot kvm_pgtable_hyp_pte_prot(kvm_pte_t pte)
 	return prot;
 }
 
-static bool hyp_pte_needs_update(kvm_pte_t old, kvm_pte_t new)
-{
-	/*
-	 * Tolerate KVM recreating the exact same mapping, or changing software
-	 * bits if the existing mapping was valid.
-	 */
-	if (old == new)
-		return false;
-
-	if (!kvm_pte_valid(old))
-		return true;
-
-	return !WARN_ON((old ^ new) & ~KVM_PTE_LEAF_ATTR_HI_SW);
-}
-
 static bool hyp_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 				    kvm_pte_t *ptep, struct hyp_map_data *data)
 {
@@ -407,11 +392,16 @@ static bool hyp_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 	if (!kvm_block_mapping_supported(addr, end, phys, level))
 		return false;
 
+	data->phys += granule;
 	new = kvm_init_valid_leaf_pte(phys, data->attr, level);
-	if (hyp_pte_needs_update(old, new))
-		smp_store_release(ptep, new);
+	if (old == new)
+		return true;
+	if (!kvm_pte_valid(old))
+		data->mm_ops->get_page(ptep);
+	else if (WARN_ON((old ^ new) & ~KVM_PTE_LEAF_ATTR_HI_SW))
+		return false;
 
-	data->phys += granule;
+	smp_store_release(ptep, new);
 	return true;
 }
 
@@ -433,6 +423,7 @@ static int hyp_map_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 		return -ENOMEM;
 
 	kvm_set_table_pte(ptep, childp, mm_ops);
+	mm_ops->get_page(ptep);
 	return 0;
 }
 
@@ -482,8 +473,16 @@ static int hyp_free_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 			   enum kvm_pgtable_walk_flags flag, void * const arg)
 {
 	struct kvm_pgtable_mm_ops *mm_ops = arg;
+	kvm_pte_t pte = *ptep;
+
+	if (!kvm_pte_valid(pte))
+		return 0;
+
+	mm_ops->put_page(ptep);
+
+	if (kvm_pte_table(pte, level))
+		mm_ops->put_page(kvm_pte_follow(pte, mm_ops));
 
-	mm_ops->put_page((void *)kvm_pte_follow(*ptep, mm_ops));
 	return 0;
 }
 
@@ -491,7 +490,7 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt)
 {
 	struct kvm_pgtable_walker walker = {
 		.cb	= hyp_free_walker,
-		.flags	= KVM_PGTABLE_WALK_TABLE_POST,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
 		.arg	= pgt->mm_ops,
 	};
 
-- 
GitLab


From c3a5cad5ecff2f63bdad1d008c8b85c1de8462e5 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 15 Dec 2021 16:12:20 +0000
Subject: [PATCH 2548/4878] BACKPORT: FROMGIT: KVM: arm64: Fixup hyp stage-1
 refcount

In nVHE-protected mode, the hyp stage-1 page-table refcount is broken
due to the lack of refcount support in the early allocator. Fix-up the
refcount in the finalize walker, once the 'hyp_vmemmap' is up and running.

[ qperret: BACKPORT due to conflict with S2MPU code ]

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-4-qperret@google.com
(cherry picked from commit d6b4bd3f4897f3b60ac9e8c9e2f0300e739b3392
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I6c48e4e5a0ae969e1d1ac6be0ce601faf138cfd3
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 6815581004e97..56489ace5c773 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -166,6 +166,7 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 					 enum kvm_pgtable_walk_flags flag,
 					 void * const arg)
 {
+	struct kvm_pgtable_mm_ops *mm_ops = arg;
 	enum kvm_pgtable_prot prot;
 	enum pkvm_page_state state;
 	kvm_pte_t pte = *ptep;
@@ -174,6 +175,15 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 	if (!kvm_pte_valid(pte))
 		return 0;
 
+	/*
+	 * Fix-up the refcount for the page-table pages as the early allocator
+	 * was unable to access the hyp_vmemmap and so the buddy allocator has
+	 * initialised the refcount to '1'.
+	 */
+	mm_ops->get_page(ptep);
+	if (flag != KVM_PGTABLE_WALK_LEAF)
+		return 0;
+
 	if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
 		return -EINVAL;
 
@@ -206,7 +216,8 @@ static int finalize_host_mappings(void)
 {
 	struct kvm_pgtable_walker walker = {
 		.cb	= finalize_host_mappings_walker,
-		.flags	= KVM_PGTABLE_WALK_LEAF,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
+		.arg	= pkvm_pgtable.mm_ops,
 	};
 	int i, ret;
 
-- 
GitLab


From e22f84251db4e067dd59ec13fef6d772281d0809 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:21 +0000
Subject: [PATCH 2549/4878] FROMGIT: KVM: arm64: Hook up ->page_count() for
 hypervisor stage-1 page-table

kvm_pgtable_hyp_unmap() relies on the ->page_count() function callback
being provided by the memory-management operations for the page-table.

Wire up this callback for the hypervisor stage-1 page-table.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-5-qperret@google.com
(cherry picked from commit 34ec7cbf1ee0c45e66a0c24311bcd5b83b7109f5
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I481b1f722f4dddda72e35481aca725a937a52090
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 56489ace5c773..0f58e7ea6610b 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -274,6 +274,7 @@ void __noreturn __pkvm_init_finalise(void)
 		.virt_to_phys = hyp_virt_to_phys,
 		.get_page = hpool_get_page,
 		.put_page = hpool_put_page,
+		.page_count = hyp_page_count,
 	};
 	pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
 
-- 
GitLab


From af2a0836d6d32667c992f98d31d27bda04d6ffe1 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:22 +0000
Subject: [PATCH 2550/4878] FROMGIT: KVM: arm64: Implement
 kvm_pgtable_hyp_unmap() at EL2

Implement kvm_pgtable_hyp_unmap() which can be used to remove hypervisor
stage-1 mappings at EL2.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-6-qperret@google.com
(cherry picked from commit 82bb02445de57bb3072052705f6f5dea9465592e
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I7c8dababccaa31a7b6d90977d583c8c0f8b8d47a
---
 arch/arm64/include/asm/kvm_pgtable.h | 21 ++++++++++
 arch/arm64/kvm/hyp/pgtable.c         | 63 ++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 0277838295840..9d076f36401d1 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -251,6 +251,27 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt);
 int kvm_pgtable_hyp_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys,
 			enum kvm_pgtable_prot prot);
 
+/**
+ * kvm_pgtable_hyp_unmap() - Remove a mapping from a hypervisor stage-1 page-table.
+ * @pgt:	Page-table structure initialised by kvm_pgtable_hyp_init().
+ * @addr:	Virtual address from which to remove the mapping.
+ * @size:	Size of the mapping.
+ *
+ * The offset of @addr within a page is ignored, @size is rounded-up to
+ * the next page boundary and @phys is rounded-down to the previous page
+ * boundary.
+ *
+ * TLB invalidation is performed for each page-table entry cleared during the
+ * unmapping operation and the reference count for the page-table page
+ * containing the cleared entry is decremented, with unreferenced pages being
+ * freed. The unmapping operation will stop early if it encounters either an
+ * invalid page-table entry or a valid block mapping which maps beyond the range
+ * being unmapped.
+ *
+ * Return: Number of bytes unmapped, which may be 0.
+ */
+u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size);
+
 /**
  * kvm_get_vtcr() - Helper to construct VTCR_EL2
  * @mmfr0:	Sanitized value of SYS_ID_AA64MMFR0_EL1 register.
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index e50e9158fc563..adc73f8cd24f5 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -451,6 +451,69 @@ int kvm_pgtable_hyp_map(struct kvm_pgtable *pgt, u64 addr, u64 size, u64 phys,
 	return ret;
 }
 
+struct hyp_unmap_data {
+	u64				unmapped;
+	struct kvm_pgtable_mm_ops	*mm_ops;
+};
+
+static int hyp_unmap_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
+			    enum kvm_pgtable_walk_flags flag, void * const arg)
+{
+	kvm_pte_t pte = *ptep, *childp = NULL;
+	u64 granule = kvm_granule_size(level);
+	struct hyp_unmap_data *data = arg;
+	struct kvm_pgtable_mm_ops *mm_ops = data->mm_ops;
+
+	if (!kvm_pte_valid(pte))
+		return -EINVAL;
+
+	if (kvm_pte_table(pte, level)) {
+		childp = kvm_pte_follow(pte, mm_ops);
+
+		if (mm_ops->page_count(childp) != 1)
+			return 0;
+
+		kvm_clear_pte(ptep);
+		dsb(ishst);
+		__tlbi_level(vae2is, __TLBI_VADDR(addr, 0), level);
+	} else {
+		if (end - addr < granule)
+			return -EINVAL;
+
+		kvm_clear_pte(ptep);
+		dsb(ishst);
+		__tlbi_level(vale2is, __TLBI_VADDR(addr, 0), level);
+		data->unmapped += granule;
+	}
+
+	dsb(ish);
+	isb();
+	mm_ops->put_page(ptep);
+
+	if (childp)
+		mm_ops->put_page(childp);
+
+	return 0;
+}
+
+u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
+{
+	struct hyp_unmap_data unmap_data = {
+		.mm_ops	= pgt->mm_ops,
+	};
+	struct kvm_pgtable_walker walker = {
+		.cb	= hyp_unmap_walker,
+		.arg	= &unmap_data,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
+	};
+
+	if (!pgt->mm_ops->page_count)
+		return 0;
+
+	kvm_pgtable_walk(pgt, addr, size, &walker);
+	return unmap_data.unmapped;
+}
+
 int kvm_pgtable_hyp_init(struct kvm_pgtable *pgt, u32 va_bits,
 			 struct kvm_pgtable_mm_ops *mm_ops)
 {
-- 
GitLab


From b1ba2ab991621e9a2f0d26b150943493f12454e7 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 15 Dec 2021 16:12:23 +0000
Subject: [PATCH 2551/4878] BACKPORT: FROMGIT: KVM: arm64: Introduce
 kvm_share_hyp()

The create_hyp_mappings() function can currently be called at any point
in time. However, its behaviour in protected mode changes widely
depending on when it is being called. Prior to KVM init, it is used to
create the temporary page-table used to bring-up the hypervisor, and
later on it is transparently turned into a 'share' hypercall when the
kernel has lost control over the hypervisor stage-1. In order to prepare
the ground for also unsharing pages with the hypervisor during guest
teardown, introduce a kvm_share_hyp() function to make it clear in which
places a share hypercall should be expected, as we will soon need a
matching unshare hypercall in all those places.

[ qperret: BACKPORT due to resolution in kvm_arch_vcpu_run_map_fp() in
  merge commit 2d761dbf7ff4 ("Merge branch kvm-arm64/fpsimd-tracking
  into kvmarm-master/next") ]

Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-7-qperret@google.com
(cherry picked from commit 3f868e142c0bb052a1c15fd3ceca1391604e2e69
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: Id3ba033a51550e5aada862d6af06773d0be833fb
---
 arch/arm64/include/asm/kvm_mmu.h |  1 +
 arch/arm64/kvm/arm.c             |  4 ++--
 arch/arm64/kvm/fpsimd.c          |  8 +++-----
 arch/arm64/kvm/mmu.c             | 27 +++++++++++++++++++++------
 arch/arm64/kvm/reset.c           |  2 +-
 5 files changed, 28 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 02d3788877438..185d0f62b7242 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -150,6 +150,7 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
 #include <asm/kvm_pgtable.h>
 #include <asm/stage2_pgtable.h>
 
+int kvm_share_hyp(void *from, void *to);
 int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 			   void __iomem **kaddr,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 24f26da55e1c0..1e6b7aee6e69d 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -145,7 +145,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	if (ret)
 		return ret;
 
-	ret = create_hyp_mappings(kvm, kvm + 1, PAGE_HYP);
+	ret = kvm_share_hyp(kvm, kvm + 1);
 	if (ret)
 		goto out_free_stage2_pgd;
 
@@ -347,7 +347,7 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
 	if (err)
 		return err;
 
-	return create_hyp_mappings(vcpu, vcpu + 1, PAGE_HYP);
+	return kvm_share_hyp(vcpu, vcpu + 1);
 }
 
 void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu)
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index ee3291de04be5..86899d3aa9a98 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -30,12 +30,10 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
 	/* Make sure the host task fpsimd state is visible to hyp: */
-	ret = create_hyp_mappings(fpsimd, fpsimd + 1, PAGE_HYP);
-	if (ret)
-		goto error;
+	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
+	if (!ret)
+		vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
 
-	vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
-error:
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index bb15a6643b899..fed23826a17bc 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -299,6 +299,25 @@ static int pkvm_share_hyp(phys_addr_t start, phys_addr_t end)
 	return 0;
 }
 
+int kvm_share_hyp(void *from, void *to)
+{
+	if (is_kernel_in_hyp_mode())
+		return 0;
+
+	/*
+	 * The share hcall maps things in the 'fixed-offset' region of the hyp
+	 * VA space, so we can only share physically contiguous data-structures
+	 * for now.
+	 */
+	if (is_vmalloc_or_module_addr(from) || is_vmalloc_or_module_addr(to))
+		return -EINVAL;
+
+	if (kvm_host_owns_hyp_mappings())
+		return create_hyp_mappings(from, to, PAGE_HYP);
+
+	return pkvm_share_hyp(__pa(from), __pa(to));
+}
+
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
@@ -319,12 +338,8 @@ int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot)
 	if (is_kernel_in_hyp_mode())
 		return 0;
 
-	if (!kvm_host_owns_hyp_mappings()) {
-		if (WARN_ON(prot != PAGE_HYP))
-			return -EPERM;
-		return pkvm_share_hyp(kvm_kaddr_to_phys(from),
-				      kvm_kaddr_to_phys(to));
-	}
+	if (!kvm_host_owns_hyp_mappings())
+		return -EPERM;
 
 	start = start & PAGE_MASK;
 	end = PAGE_ALIGN(end);
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 553334e59d1e3..66b749c7212e6 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -113,7 +113,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 	if (!buf)
 		return -ENOMEM;
 
-	ret = create_hyp_mappings(buf, buf + reg_sz, PAGE_HYP);
+	ret = kvm_share_hyp(buf, buf + reg_sz);
 	if (ret) {
 		kfree(buf);
 		return ret;
-- 
GitLab


From f172ce09be689752eade7a75c28bce10e96aebd9 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 15 Dec 2021 16:12:24 +0000
Subject: [PATCH 2552/4878] FROMGIT: KVM: arm64: pkvm: Refcount the pages
 shared with EL2

In order to simplify the page tracking infrastructure at EL2 in nVHE
protected mode, move the responsibility of refcounting pages that are
shared multiple times on the host. In order to do so, let's create a
red-black tree tracking all the PFNs that have been shared, along with
a refcount.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-8-qperret@google.com
(cherry picked from commit a83e2191b7f1894dd0b4b3816ceb9caf4e0cd7e5
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I58f39d139c84acb545676c99144547cd080cdda3
---
 arch/arm64/kvm/mmu.c | 78 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 68 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index fed23826a17bc..cec4ef99d8a26 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -284,23 +284,72 @@ static phys_addr_t kvm_kaddr_to_phys(void *kaddr)
 	}
 }
 
-static int pkvm_share_hyp(phys_addr_t start, phys_addr_t end)
+struct hyp_shared_pfn {
+	u64 pfn;
+	int count;
+	struct rb_node node;
+};
+
+static DEFINE_MUTEX(hyp_shared_pfns_lock);
+static struct rb_root hyp_shared_pfns = RB_ROOT;
+
+static struct hyp_shared_pfn *find_shared_pfn(u64 pfn, struct rb_node ***node,
+					      struct rb_node **parent)
 {
-	phys_addr_t addr;
-	int ret;
+	struct hyp_shared_pfn *this;
 
-	for (addr = ALIGN_DOWN(start, PAGE_SIZE); addr < end; addr += PAGE_SIZE) {
-		ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp,
-					__phys_to_pfn(addr));
-		if (ret)
-			return ret;
+	*node = &hyp_shared_pfns.rb_node;
+	*parent = NULL;
+	while (**node) {
+		this = container_of(**node, struct hyp_shared_pfn, node);
+		*parent = **node;
+		if (this->pfn < pfn)
+			*node = &((**node)->rb_left);
+		else if (this->pfn > pfn)
+			*node = &((**node)->rb_right);
+		else
+			return this;
 	}
 
-	return 0;
+	return NULL;
+}
+
+static int share_pfn_hyp(u64 pfn)
+{
+	struct rb_node **node, *parent;
+	struct hyp_shared_pfn *this;
+	int ret = 0;
+
+	mutex_lock(&hyp_shared_pfns_lock);
+	this = find_shared_pfn(pfn, &node, &parent);
+	if (this) {
+		this->count++;
+		goto unlock;
+	}
+
+	this = kzalloc(sizeof(*this), GFP_KERNEL);
+	if (!this) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	this->pfn = pfn;
+	this->count = 1;
+	rb_link_node(&this->node, parent, node);
+	rb_insert_color(&this->node, &hyp_shared_pfns);
+	ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp, pfn, 1);
+unlock:
+	mutex_unlock(&hyp_shared_pfns_lock);
+
+	return ret;
 }
 
 int kvm_share_hyp(void *from, void *to)
 {
+	phys_addr_t start, end, cur;
+	u64 pfn;
+	int ret;
+
 	if (is_kernel_in_hyp_mode())
 		return 0;
 
@@ -315,7 +364,16 @@ int kvm_share_hyp(void *from, void *to)
 	if (kvm_host_owns_hyp_mappings())
 		return create_hyp_mappings(from, to, PAGE_HYP);
 
-	return pkvm_share_hyp(__pa(from), __pa(to));
+	start = ALIGN_DOWN(__pa(from), PAGE_SIZE);
+	end = PAGE_ALIGN(__pa(to));
+	for (cur = start; cur < end; cur += PAGE_SIZE) {
+		pfn = __phys_to_pfn(cur);
+		ret = share_pfn_hyp(pfn);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
 }
 
 /**
-- 
GitLab


From 86096da3ee3ec3c7c2f2cf96a16204d1cc8fd001 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:25 +0000
Subject: [PATCH 2553/4878] FROMGIT: KVM: arm64: Extend pkvm_page_state
 enumeration to handle absent pages

Explicitly name the combination of SW0 | SW1 as reserved in the pte and
introduce a new PKVM_NOPAGE meta-state which, although not directly
stored in the software bits of the pte, can be used to represent an
entry for which there is no underlying page. This is distinct from an
invalid pte, as stage-2 identity mappings for the host are created
lazily and so an invalid pte there is the same as a valid mapping for
the purposes of ownership information.

This state will be used for permission checking during page transitions
in later patches.

Reviewed-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-9-qperret@google.com
(cherry picked from commit 3d467f7b8c0a179a10aa4e9f17cd2d3c3b7e5403
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I2e803a6ae83694be178a3d3eaf75fe918c881659
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index b58c910babafd..56445586c7551 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -24,6 +24,11 @@ enum pkvm_page_state {
 	PKVM_PAGE_OWNED			= 0ULL,
 	PKVM_PAGE_SHARED_OWNED		= KVM_PGTABLE_PROT_SW0,
 	PKVM_PAGE_SHARED_BORROWED	= KVM_PGTABLE_PROT_SW1,
+	__PKVM_PAGE_RESERVED		= KVM_PGTABLE_PROT_SW0 |
+					  KVM_PGTABLE_PROT_SW1,
+
+	/* Meta-states which aren't encoded directly in the PTE's SW bits */
+	PKVM_NOPAGE,
 };
 
 #define PKVM_PAGE_STATE_PROT_MASK	(KVM_PGTABLE_PROT_SW0 | KVM_PGTABLE_PROT_SW1)
-- 
GitLab


From 434f2d0820495fc8deb02a93f0a13446147125d7 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:26 +0000
Subject: [PATCH 2554/4878] BACKPORT: FROMGIT: KVM: arm64: Introduce wrappers
 for host and hyp spin lock accessors

In preparation for adding additional locked sections for manipulating
page-tables at EL2, introduce some simple wrappers around the host and
hypervisor locks so that it's a bit easier to read and bit more difficult
to take the wrong lock (or even take them in the wrong order).

[ qperret: BACKPORT due to conflict with S2MPU code ]

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-10-qperret@google.com
(cherry picked from commit 61d99e33e757a21b47b8b130e49dcbdfaa5d2b1c
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I413e2d7f514db507a1aca9a21f04115e97f72c00
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 32 ++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 8a344c8b7fe8d..edf3624598740 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -29,6 +29,26 @@ static struct hyp_pool host_s2_pool;
 
 const u8 pkvm_hyp_id = 1;
 
+static void host_lock_component(void)
+{
+	hyp_spin_lock(&host_kvm.lock);
+}
+
+static void host_unlock_component(void)
+{
+	hyp_spin_unlock(&host_kvm.lock);
+}
+
+static void hyp_lock_component(void)
+{
+	hyp_spin_lock(&pkvm_pgd_lock);
+}
+
+static void hyp_unlock_component(void)
+{
+	hyp_spin_unlock(&pkvm_pgd_lock);
+}
+
 static void *host_s2_zalloc_pages_exact(size_t size)
 {
 	void *addr = hyp_alloc_pages(&host_s2_pool, get_order(size));
@@ -358,14 +378,14 @@ static int host_stage2_idmap(u64 addr)
 			return ret;
 	}
 
-	hyp_spin_lock(&host_kvm.lock);
+	host_lock_component();
 	ret = host_stage2_adjust_range(addr, &range);
 	if (ret)
 		goto unlock;
 
 	ret = host_stage2_idmap_locked(range.start, range.end - range.start, prot);
 unlock:
-	hyp_spin_unlock(&host_kvm.lock);
+	host_unlock_component();
 
 	return ret;
 }
@@ -389,8 +409,8 @@ int __pkvm_host_share_hyp(u64 pfn)
 	if (!addr_is_memory(addr))
 		return -EINVAL;
 
-	hyp_spin_lock(&host_kvm.lock);
-	hyp_spin_lock(&pkvm_pgd_lock);
+	host_lock_component();
+	hyp_lock_component();
 
 	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
 	if (ret)
@@ -452,8 +472,8 @@ map_shared:
 	BUG_ON(ret);
 
 unlock:
-	hyp_spin_unlock(&pkvm_pgd_lock);
-	hyp_spin_unlock(&host_kvm.lock);
+	hyp_unlock_component();
+	host_unlock_component();
 
 	return ret;
 }
-- 
GitLab


From 0cee02fb021695a585ba78e3cff9398c952c018a Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:27 +0000
Subject: [PATCH 2555/4878] FROMGIT: KVM: arm64: Implement do_share() helper
 for sharing memory

By default, protected KVM isolates memory pages so that they are
accessible only to their owner: be it the host kernel, the hypervisor
at EL2 or (in future) the guest. Establishing shared-memory regions
between these components therefore involves a transition for each page
so that the owner can share memory with a borrower under a certain set
of permissions.

Introduce a do_share() helper for safely sharing a memory region between
two components. Currently, only host-to-hyp sharing is implemented, but
the code is easily extended to handle other combinations and the
permission checks for each component are reusable.

Reviewed-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-11-qperret@google.com
(cherry picked from commit e82edcc75c4e2389a3d7223c4ef1737bd9a07e5d
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I3ee4486ab08faa24015ac608979e3596b27806a2
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 237 ++++++++++++++++++++++++++
 1 file changed, 237 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index edf3624598740..7edaeb20e5c1c 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -524,3 +524,240 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 
 	BUG_ON(ret && ret != -EAGAIN);
 }
+
+/* This corresponds to locking order */
+enum pkvm_component_id {
+	PKVM_ID_HOST,
+	PKVM_ID_HYP,
+};
+
+struct pkvm_mem_transition {
+	u64				nr_pages;
+
+	struct {
+		enum pkvm_component_id	id;
+		/* Address in the initiator's address space */
+		u64			addr;
+
+		union {
+			struct {
+				/* Address in the completer's address space */
+				u64	completer_addr;
+			} host;
+		};
+	} initiator;
+
+	struct {
+		enum pkvm_component_id	id;
+	} completer;
+};
+
+struct pkvm_mem_share {
+	const struct pkvm_mem_transition	tx;
+	const enum kvm_pgtable_prot		completer_prot;
+};
+
+struct check_walk_data {
+	enum pkvm_page_state	desired;
+	enum pkvm_page_state	(*get_page_state)(kvm_pte_t pte);
+};
+
+static int __check_page_state_visitor(u64 addr, u64 end, u32 level,
+				      kvm_pte_t *ptep,
+				      enum kvm_pgtable_walk_flags flag,
+				      void * const arg)
+{
+	struct check_walk_data *d = arg;
+	kvm_pte_t pte = *ptep;
+
+	if (kvm_pte_valid(pte) && !addr_is_memory(kvm_pte_to_phys(pte)))
+		return -EINVAL;
+
+	return d->get_page_state(pte) == d->desired ? 0 : -EPERM;
+}
+
+static int check_page_state_range(struct kvm_pgtable *pgt, u64 addr, u64 size,
+				  struct check_walk_data *data)
+{
+	struct kvm_pgtable_walker walker = {
+		.cb	= __check_page_state_visitor,
+		.arg	= data,
+		.flags	= KVM_PGTABLE_WALK_LEAF,
+	};
+
+	return kvm_pgtable_walk(pgt, addr, size, &walker);
+}
+
+static enum pkvm_page_state host_get_page_state(kvm_pte_t pte)
+{
+	if (!kvm_pte_valid(pte) && pte)
+		return PKVM_NOPAGE;
+
+	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
+}
+
+static int __host_check_page_state_range(u64 addr, u64 size,
+					 enum pkvm_page_state state)
+{
+	struct check_walk_data d = {
+		.desired	= state,
+		.get_page_state	= host_get_page_state,
+	};
+
+	hyp_assert_lock_held(&host_kvm.lock);
+	return check_page_state_range(&host_kvm.pgt, addr, size, &d);
+}
+
+static int __host_set_page_state_range(u64 addr, u64 size,
+				       enum pkvm_page_state state)
+{
+	enum kvm_pgtable_prot prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, state);
+
+	return host_stage2_idmap_locked(addr, size, prot);
+}
+
+static int host_request_owned_transition(u64 *completer_addr,
+					 const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
+}
+
+static int host_initiate_share(u64 *completer_addr,
+			       const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
+}
+
+static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
+{
+	if (!kvm_pte_valid(pte))
+		return PKVM_NOPAGE;
+
+	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
+}
+
+static int __hyp_check_page_state_range(u64 addr, u64 size,
+					enum pkvm_page_state state)
+{
+	struct check_walk_data d = {
+		.desired	= state,
+		.get_page_state	= hyp_get_page_state,
+	};
+
+	hyp_assert_lock_held(&pkvm_pgd_lock);
+	return check_page_state_range(&pkvm_pgtable, addr, size, &d);
+}
+
+static bool __hyp_ack_skip_pgtable_check(const struct pkvm_mem_transition *tx)
+{
+	return !(IS_ENABLED(CONFIG_NVHE_EL2_DEBUG) ||
+		 tx->initiator.id != PKVM_ID_HOST);
+}
+
+static int hyp_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
+			 enum kvm_pgtable_prot perms)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (perms != PAGE_HYP)
+		return -EPERM;
+
+	if (__hyp_ack_skip_pgtable_check(tx))
+		return 0;
+
+	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
+}
+
+static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
+			      enum kvm_pgtable_prot perms)
+{
+	void *start = (void *)addr, *end = start + (tx->nr_pages * PAGE_SIZE);
+	enum kvm_pgtable_prot prot;
+
+	prot = pkvm_mkstate(perms, PKVM_PAGE_SHARED_BORROWED);
+	return pkvm_create_mappings_locked(start, end, prot);
+}
+
+static int check_share(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_request_owned_transition(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_ack_share(completer_addr, tx, share->completer_prot);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int __do_share(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_initiate_share(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_complete_share(completer_addr, tx, share->completer_prot);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+/*
+ * do_share():
+ *
+ * The page owner grants access to another component with a given set
+ * of permissions.
+ *
+ * Initiator: OWNED	=> SHARED_OWNED
+ * Completer: NOPAGE	=> SHARED_BORROWED
+ */
+static int do_share(struct pkvm_mem_share *share)
+{
+	int ret;
+
+	ret = check_share(share);
+	if (ret)
+		return ret;
+
+	return WARN_ON(__do_share(share));
+}
-- 
GitLab


From db25549067e86e18fed6bf9144bdadb77210a4d9 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:28 +0000
Subject: [PATCH 2556/4878] BACKPORT: FROMGIT: KVM: arm64: Implement
 __pkvm_host_share_hyp() using do_share()

__pkvm_host_share_hyp() shares memory between the host and the
hypervisor so implement it as an invocation of the new do_share()
mechanism.

Note that double-sharing is no longer permitted (as this allows us to
reduce the number of page-table walks significantly), but is thankfully
no longer relied upon by the host.

[ qperret: BACKPORT due to conflict caused by the MMIO handler
  introduced with the S2MPU support ]

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-12-qperret@google.com
(cherry picked from commit 1ee32109fd78720259f7431740897d37ebcd84f6
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I9f5877b6ea7b9bf735a90492fbca16f485e73110
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 121 +++++++-------------------
 1 file changed, 33 insertions(+), 88 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 7edaeb20e5c1c..06f4f8ef68ea5 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -390,94 +390,6 @@ unlock:
 	return ret;
 }
 
-static inline bool check_prot(enum kvm_pgtable_prot prot,
-			      enum kvm_pgtable_prot required,
-			      enum kvm_pgtable_prot denied)
-{
-	return (prot & (required | denied)) == required;
-}
-
-int __pkvm_host_share_hyp(u64 pfn)
-{
-	phys_addr_t addr = hyp_pfn_to_phys(pfn);
-	enum kvm_pgtable_prot prot, cur;
-	void *virt = __hyp_va(addr);
-	enum pkvm_page_state state;
-	kvm_pte_t pte;
-	int ret;
-
-	if (!addr_is_memory(addr))
-		return -EINVAL;
-
-	host_lock_component();
-	hyp_lock_component();
-
-	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
-	if (ret)
-		goto unlock;
-	if (!pte)
-		goto map_shared;
-
-	/*
-	 * Check attributes in the host stage-2 PTE. We need the page to be:
-	 *  - mapped RWX as we're sharing memory;
-	 *  - not borrowed, as that implies absence of ownership.
-	 * Otherwise, we can't let it got through
-	 */
-	cur = kvm_pgtable_stage2_pte_prot(pte);
-	prot = pkvm_mkstate(0, PKVM_PAGE_SHARED_BORROWED);
-	if (!check_prot(cur, PKVM_HOST_MEM_PROT, prot)) {
-		ret = -EPERM;
-		goto unlock;
-	}
-
-	state = pkvm_getstate(cur);
-	if (state == PKVM_PAGE_OWNED)
-		goto map_shared;
-
-	/*
-	 * Tolerate double-sharing the same page, but this requires
-	 * cross-checking the hypervisor stage-1.
-	 */
-	if (state != PKVM_PAGE_SHARED_OWNED) {
-		ret = -EPERM;
-		goto unlock;
-	}
-
-	ret = kvm_pgtable_get_leaf(&pkvm_pgtable, (u64)virt, &pte, NULL);
-	if (ret)
-		goto unlock;
-
-	/*
-	 * If the page has been shared with the hypervisor, it must be
-	 * already mapped as SHARED_BORROWED in its stage-1.
-	 */
-	cur = kvm_pgtable_hyp_pte_prot(pte);
-	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_SHARED_BORROWED);
-	if (!check_prot(cur, prot, ~prot))
-		ret = -EPERM;
-	goto unlock;
-
-map_shared:
-	/*
-	 * If the page is not yet shared, adjust mappings in both page-tables
-	 * while both locks are held.
-	 */
-	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_SHARED_BORROWED);
-	ret = pkvm_create_mappings_locked(virt, virt + PAGE_SIZE, prot);
-	BUG_ON(ret);
-
-	prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, PKVM_PAGE_SHARED_OWNED);
-	ret = host_stage2_idmap_locked(addr, PAGE_SIZE, prot);
-	BUG_ON(ret);
-
-unlock:
-	hyp_unlock_component();
-	host_unlock_component();
-
-	return ret;
-}
-
 static int host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 				  phys_addr_t addr)
 {
@@ -761,3 +673,36 @@ static int do_share(struct pkvm_mem_share *share)
 
 	return WARN_ON(__do_share(share));
 }
+
+int __pkvm_host_share_hyp(u64 pfn)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 hyp_addr = (u64)__hyp_va(host_addr);
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = hyp_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HYP,
+			},
+		},
+		.completer_prot	= PAGE_HYP,
+	};
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = do_share(&share);
+
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From 9565570b196c512d6ca5fe3deabcec3cbe20a955 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:29 +0000
Subject: [PATCH 2557/4878] FROMGIT: KVM: arm64: Implement do_unshare() helper
 for unsharing memory

Tearing down a previously shared memory region results in the borrower
losing access to the underlying pages and returning them to the "owned"
state in the owner.

Implement a do_unshare() helper, along the same lines as do_share(), to
provide this functionality for the host-to-hyp case.

Reviewed-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-13-qperret@google.com
(cherry picked from commit 376a240f037959c2b9a2486e53bcd8d388cbec17
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I07aa6194099325c955f48ab608c4b601664419e5
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 115 ++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 06f4f8ef68ea5..b61b5d7d8a191 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -538,6 +538,16 @@ static int host_request_owned_transition(u64 *completer_addr,
 	return __host_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
 }
 
+static int host_request_unshare(u64 *completer_addr,
+				const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_check_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
+}
+
 static int host_initiate_share(u64 *completer_addr,
 			       const struct pkvm_mem_transition *tx)
 {
@@ -548,6 +558,16 @@ static int host_initiate_share(u64 *completer_addr,
 	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_OWNED);
 }
 
+static int host_initiate_unshare(u64 *completer_addr,
+				 const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return __host_set_page_state_range(addr, size, PKVM_PAGE_OWNED);
+}
+
 static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
 {
 	if (!kvm_pte_valid(pte))
@@ -588,6 +608,17 @@ static int hyp_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
 }
 
+static int hyp_ack_unshare(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (__hyp_ack_skip_pgtable_check(tx))
+		return 0;
+
+	return __hyp_check_page_state_range(addr, size,
+					    PKVM_PAGE_SHARED_BORROWED);
+}
+
 static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 			      enum kvm_pgtable_prot perms)
 {
@@ -598,6 +629,14 @@ static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return pkvm_create_mappings_locked(start, end, prot);
 }
 
+static int hyp_complete_unshare(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	int ret = kvm_pgtable_hyp_unmap(&pkvm_pgtable, addr, size);
+
+	return (ret != size) ? -EFAULT : 0;
+}
+
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -674,6 +713,82 @@ static int do_share(struct pkvm_mem_share *share)
 	return WARN_ON(__do_share(share));
 }
 
+static int check_unshare(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_request_unshare(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_ack_unshare(completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int __do_unshare(struct pkvm_mem_share *share)
+{
+	const struct pkvm_mem_transition *tx = &share->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_initiate_unshare(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id) {
+	case PKVM_ID_HYP:
+		ret = hyp_complete_unshare(completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+/*
+ * do_unshare():
+ *
+ * The page owner revokes access from another component for a range of
+ * pages which were previously shared using do_share().
+ *
+ * Initiator: SHARED_OWNED	=> OWNED
+ * Completer: SHARED_BORROWED	=> NOPAGE
+ */
+static int do_unshare(struct pkvm_mem_share *share)
+{
+	int ret;
+
+	ret = check_unshare(share);
+	if (ret)
+		return ret;
+
+	return WARN_ON(__do_unshare(share));
+}
+
 int __pkvm_host_share_hyp(u64 pfn)
 {
 	int ret;
-- 
GitLab


From 4890ae64ab03ceb2ef3073a78ff9da22e0871248 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 15 Dec 2021 16:12:30 +0000
Subject: [PATCH 2558/4878] FROMGIT: KVM: arm64: Expose unshare hypercall to
 the host

Introduce an unshare hypercall which can be used to unmap memory from
the hypervisor stage-1 in nVHE protected mode. This will be useful to
update the EL2 ownership state of pages during guest teardown, and
avoids keeping dangling mappings to unreferenced portions of memory.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-14-qperret@google.com
(cherry picked from commit b8cc6eb5bded7078f796b2ebf548f79850281eb6
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: I0b2839046914a0fd9a6d0077383d53dc84a8ac3d
---
 arch/arm64/include/asm/kvm_asm.h              |  1 +
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  8 +++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 33 +++++++++++++++++++
 4 files changed, 43 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 006ca3af082af..edb496f67bfd9 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -62,6 +62,7 @@ enum __kvm_host_smccc_func {
 
 	/* Hypercalls available after pKVM finalisation */
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_unshare_hyp,
 	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 56445586c7551..80e99836eac79 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -55,6 +55,7 @@ extern const u8 pkvm_hyp_id;
 
 int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
+int __pkvm_host_unshare_hyp(u64 pfn);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 75ce2547cd6e1..7600f8bf5b836 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -150,6 +150,13 @@ static void handle___pkvm_host_share_hyp(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_host_share_hyp(pfn);
 }
 
+static void handle___pkvm_host_unshare_hyp(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(u64, pfn, host_ctxt, 1);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_host_unshare_hyp(pfn);
+}
+
 static void handle___pkvm_create_private_mapping(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(phys_addr_t, phys, host_ctxt, 1);
@@ -187,6 +194,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_prot_finalize),
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
+	HANDLE_FUNC(__pkvm_host_unshare_hyp),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
 	HANDLE_FUNC(__kvm_flush_vm_context),
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index b61b5d7d8a191..6e02387a647e3 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -821,3 +821,36 @@ int __pkvm_host_share_hyp(u64 pfn)
 
 	return ret;
 }
+
+int __pkvm_host_unshare_hyp(u64 pfn)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 hyp_addr = (u64)__hyp_va(host_addr);
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = hyp_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HYP,
+			},
+		},
+		.completer_prot	= PAGE_HYP,
+	};
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = do_unshare(&share);
+
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From 3dfcc3ba1ac03e1e9529ea4bd26686015ab5308a Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 15 Dec 2021 16:12:31 +0000
Subject: [PATCH 2559/4878] FROMGIT: KVM: arm64: pkvm: Unshare guest structs
 during teardown

Make use of the newly introduced unshare hypercall during guest teardown
to unmap guest-related data structures from the hyp stage-1.

Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-15-qperret@google.com
(cherry picked from commit 52b28657ebd7cd20e931ce71190f235d0fa018a6
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209599700
Change-Id: Ic8ec2c74d3e803e4d5f0df37d144d2c2eb0e9ad3
---
 arch/arm64/include/asm/kvm_host.h |  2 ++
 arch/arm64/include/asm/kvm_mmu.h  |  1 +
 arch/arm64/kvm/arm.c              |  2 ++
 arch/arm64/kvm/fpsimd.c           | 34 ++++++++++++++++++++++---
 arch/arm64/kvm/mmu.c              | 42 +++++++++++++++++++++++++++++++
 arch/arm64/kvm/reset.c            |  8 +++++-
 6 files changed, 85 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 9380ce7cb4ace..8a1fa7d46d81f 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -333,6 +333,7 @@ struct kvm_vcpu_arch {
 	struct kvm_guest_debug_arch external_debug_state;
 
 	struct user_fpsimd_state *host_fpsimd_state;	/* hyp VA */
+	struct task_struct *parent_task;
 
 	struct {
 		/* {Break,watch}point registers */
@@ -760,6 +761,7 @@ void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxflush_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_ctxsync_fp(struct kvm_vcpu *vcpu);
 void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu);
+void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu);
 
 static inline bool kvm_pmu_counter_deferred(struct perf_event_attr *attr)
 {
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 185d0f62b7242..81839e9a8a242 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -151,6 +151,7 @@ static __always_inline unsigned long __kern_hyp_va(unsigned long v)
 #include <asm/stage2_pgtable.h>
 
 int kvm_share_hyp(void *from, void *to);
+void kvm_unshare_hyp(void *from, void *to);
 int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
 			   void __iomem **kaddr,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 1e6b7aee6e69d..49ee57d4141bc 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -187,6 +187,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 		}
 	}
 	atomic_set(&kvm->online_vcpus, 0);
+
+	kvm_unshare_hyp(kvm, kvm + 1);
 }
 
 int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c
index 86899d3aa9a98..2f48fd362a8c5 100644
--- a/arch/arm64/kvm/fpsimd.c
+++ b/arch/arm64/kvm/fpsimd.c
@@ -14,6 +14,19 @@
 #include <asm/kvm_mmu.h>
 #include <asm/sysreg.h>
 
+void kvm_vcpu_unshare_task_fp(struct kvm_vcpu *vcpu)
+{
+	struct task_struct *p = vcpu->arch.parent_task;
+	struct user_fpsimd_state *fpsimd;
+
+	if (!is_protected_kvm_enabled() || !p)
+		return;
+
+	fpsimd = &p->thread.uw.fpsimd_state;
+	kvm_unshare_hyp(fpsimd, fpsimd + 1);
+	put_task_struct(p);
+}
+
 /*
  * Called on entry to KVM_RUN unless this vcpu previously ran at least
  * once and the most recent prior KVM_RUN for this vcpu was called from
@@ -29,12 +42,27 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
 
 	struct user_fpsimd_state *fpsimd = &current->thread.uw.fpsimd_state;
 
+	kvm_vcpu_unshare_task_fp(vcpu);
+
 	/* Make sure the host task fpsimd state is visible to hyp: */
 	ret = kvm_share_hyp(fpsimd, fpsimd + 1);
-	if (!ret)
-		vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
+	if (ret)
+		return ret;
+
+	vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
+
+	/*
+	 * We need to keep current's task_struct pinned until its data has been
+	 * unshared with the hypervisor to make sure it is not re-used by the
+	 * kernel and donated to someone else while already shared -- see
+	 * kvm_vcpu_unshare_task_fp() for the matching put_task_struct().
+	 */
+	if (is_protected_kvm_enabled()) {
+		get_task_struct(current);
+		vcpu->arch.parent_task = current;
+	}
 
-	return ret;
+	return 0;
 }
 
 /*
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index cec4ef99d8a26..0f869f398b479 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -344,6 +344,32 @@ unlock:
 	return ret;
 }
 
+static int unshare_pfn_hyp(u64 pfn)
+{
+	struct rb_node **node, *parent;
+	struct hyp_shared_pfn *this;
+	int ret = 0;
+
+	mutex_lock(&hyp_shared_pfns_lock);
+	this = find_shared_pfn(pfn, &node, &parent);
+	if (WARN_ON(!this)) {
+		ret = -ENOENT;
+		goto unlock;
+	}
+
+	this->count--;
+	if (this->count)
+		goto unlock;
+
+	rb_erase(&this->node, &hyp_shared_pfns);
+	kfree(this);
+	ret = kvm_call_hyp_nvhe(__pkvm_host_unshare_hyp, pfn, 1);
+unlock:
+	mutex_unlock(&hyp_shared_pfns_lock);
+
+	return ret;
+}
+
 int kvm_share_hyp(void *from, void *to)
 {
 	phys_addr_t start, end, cur;
@@ -376,6 +402,22 @@ int kvm_share_hyp(void *from, void *to)
 	return 0;
 }
 
+void kvm_unshare_hyp(void *from, void *to)
+{
+	phys_addr_t start, end, cur;
+	u64 pfn;
+
+	if (is_kernel_in_hyp_mode() || kvm_host_owns_hyp_mappings() || !from)
+		return;
+
+	start = ALIGN_DOWN(__pa(from), PAGE_SIZE);
+	end = PAGE_ALIGN(__pa(to));
+	for (cur = start; cur < end; cur += PAGE_SIZE) {
+		pfn = __phys_to_pfn(cur);
+		WARN_ON(unshare_pfn_hyp(pfn));
+	}
+}
+
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 66b749c7212e6..750ad7d8fb7b1 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -150,7 +150,13 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu)
 
 void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu)
 {
-	kfree(vcpu->arch.sve_state);
+	void *sve_state = vcpu->arch.sve_state;
+
+	kvm_vcpu_unshare_task_fp(vcpu);
+	kvm_unshare_hyp(vcpu, vcpu + 1);
+	if (sve_state)
+		kvm_unshare_hyp(sve_state, sve_state + vcpu_sve_state_size(vcpu));
+	kfree(sve_state);
 }
 
 static void kvm_vcpu_reset_sve(struct kvm_vcpu *vcpu)
-- 
GitLab


From c730e7dbba798b29cc5123fb01a850bd9cff9bcd Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 6 Jan 2022 13:52:07 -0800
Subject: [PATCH 2560/4878] ANDROID: Fix "one_thousand" defined but not used
 warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fix the following warning issued when CONFIG_PERF_EVENTS is not
defined:

kernel/sysctl.c:124:12: error: ‘one_thousand’ defined but not used [-Werror=unused-variable]

These definitions in upstream has been changed [1] and therefore
the issue does not exist there.

[1] https://lore.kernel.org/all/20211124220801.ip01WsWPQ%25akpm@linux-foundation.org/

Fixes: 8fded571e739 ("FROMGIT: mm/pagealloc: sysctl: change watermark_scale_factor max limit to 30%")
Bug: 194652782
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I5539a2d0d27a126f7405455a8cf08c23b80d2e0b
---
 kernel/sysctl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 28a41128fc6b3..5c3030b5e719f 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -121,7 +121,9 @@ static unsigned long one_ul = 1;
 static unsigned long long_max = LONG_MAX;
 static int one_hundred = 100;
 static int two_hundred = 200;
+#ifdef CONFIG_PERF_EVENTS
 static int one_thousand = 1000;
+#endif
 static int three_thousand = 3000;
 #ifdef CONFIG_PRINTK
 static int ten_thousand = 10000;
-- 
GitLab


From 718b3ade507087fbf4c2edbbc707aa69f155dcca Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 8 Dec 2021 14:46:41 +0000
Subject: [PATCH 2561/4878] FROMGIT: KVM: arm64: Drop unused workaround_flags
 vcpu field

workaround_flags is a leftover from our earlier Spectre-v4 workaround
implementation, and now serves no purpose.

Get rid of the field and the corresponding asm-offset definition.

Fixes: 29e8910a566a ("KVM: arm64: Simplify handling of ARCH_WORKAROUND_2")
Signed-off-by: Marc Zyngier <maz@kernel.org>
(cherry picked from commit 142ff9bddbde757674c7081ffc238cfcffa1859b
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie059d34e32f35718abc13b321fbf9f762a5585c1
---
 arch/arm64/include/asm/kvm_host.h | 3 ---
 arch/arm64/kernel/asm-offsets.c   | 1 -
 2 files changed, 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 8a1fa7d46d81f..ab4733321f83b 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -309,9 +309,6 @@ struct kvm_vcpu_arch {
 	/* Exception Information */
 	struct kvm_vcpu_fault_info fault;
 
-	/* State of various workarounds, see kvm_asm.h for bit assignment */
-	u64 workaround_flags;
-
 	/* Miscellaneous vcpu state flags */
 	u64 flags;
 
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 7eef8bead7ad1..05e3851a5d0d7 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -109,7 +109,6 @@ int main(void)
 #ifdef CONFIG_KVM
   DEFINE(VCPU_CONTEXT,		offsetof(struct kvm_vcpu, arch.ctxt));
   DEFINE(VCPU_FAULT_DISR,	offsetof(struct kvm_vcpu, arch.fault.disr_el1));
-  DEFINE(VCPU_WORKAROUND_FLAGS,	offsetof(struct kvm_vcpu, arch.workaround_flags));
   DEFINE(VCPU_HCR_EL2,		offsetof(struct kvm_vcpu, arch.hcr_el2));
   DEFINE(CPU_USER_PT_REGS,	offsetof(struct kvm_cpu_context, regs));
   DEFINE(CPU_RGSR_EL1,		offsetof(struct kvm_cpu_context, sys_regs[RGSR_EL1]));
-- 
GitLab


From 1525ed80221d54e3f0c6dc7ada7db55f17bbdb95 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 16 Dec 2021 10:45:26 +0000
Subject: [PATCH 2562/4878] FROMGIT: KVM: arm64: vgic-v3: Fix vcpu index
 comparison

When handling an error at the point where we try and register
all the redistributors, we unregister all the previously
registered frames by counting down from the failing index.

However, the way the code is written relies on that index
being a signed value. Which won't be true once we switch to
an xarray-based vcpu set.

Since this code is pretty awkward the first place, and that the
failure mode is hard to spot, rewrite this loop to iterate
over the vcpus upwards rather than downwards.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211216104526.1482124-1-maz@kernel.org
(cherry picked from commit c95b1d7ca794ac3ea49a8f85c729f9841444d5e5
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I9df3874b4a6542e5d20125d436108d8c1235b8e5
---
 arch/arm64/kvm/vgic/vgic-mmio-v3.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-mmio-v3.c b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
index 4d94fc9726bf9..aba1b6fca293e 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio-v3.c
@@ -763,10 +763,12 @@ static int vgic_register_all_redist_iodevs(struct kvm *kvm)
 	}
 
 	if (ret) {
-		/* The current c failed, so we start with the previous one. */
+		/* The current c failed, so iterate over the previous ones. */
+		int i;
+
 		mutex_lock(&kvm->slots_lock);
-		for (c--; c >= 0; c--) {
-			vcpu = kvm_get_vcpu(kvm, c);
+		for (i = 0; i < c; i++) {
+			vcpu = kvm_get_vcpu(kvm, i);
 			vgic_unregister_redist_iodev(vcpu);
 		}
 		mutex_unlock(&kvm->slots_lock);
-- 
GitLab


From d8eaaf18365b88449248718f89c71ab7d6b132a6 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 16 Dec 2021 10:45:07 +0000
Subject: [PATCH 2563/4878] FROMGIT: KVM: arm64: vgic: Demote
 userspace-triggered console prints to kvm_debug()

Running the KVM selftests results in these messages being dumped
in the kernel console:

[  188.051073] kvm [469]: VGIC redist and dist frames overlap
[  188.056820] kvm [469]: VGIC redist and dist frames overlap
[  188.076199] kvm [469]: VGIC redist and dist frames overlap

Being amle to trigger this from userspace is definitely not on,
so demote these warnings to kvm_debug().

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211216104507.1482017-1-maz@kernel.org
(cherry picked from commit 440523b92be6a25e53f9ba1f3b418345fe465b51
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0c6c94795a86705925dc1c9519bb0dec831b641c
---
 arch/arm64/kvm/vgic/vgic-v2.c | 4 ++--
 arch/arm64/kvm/vgic/vgic-v3.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/vgic/vgic-v2.c b/arch/arm64/kvm/vgic/vgic-v2.c
index 8e337a0d78178..645648349c99b 100644
--- a/arch/arm64/kvm/vgic/vgic-v2.c
+++ b/arch/arm64/kvm/vgic/vgic-v2.c
@@ -293,12 +293,12 @@ int vgic_v2_map_resources(struct kvm *kvm)
 
 	if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base) ||
 	    IS_VGIC_ADDR_UNDEF(dist->vgic_cpu_base)) {
-		kvm_err("Need to set vgic cpu and dist addresses first\n");
+		kvm_debug("Need to set vgic cpu and dist addresses first\n");
 		return -ENXIO;
 	}
 
 	if (!vgic_v2_check_base(dist->vgic_dist_base, dist->vgic_cpu_base)) {
-		kvm_err("VGIC CPU and dist frames overlap\n");
+		kvm_debug("VGIC CPU and dist frames overlap\n");
 		return -EINVAL;
 	}
 
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index debad4e6e6c90..78cf674c1230b 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -554,12 +554,12 @@ int vgic_v3_map_resources(struct kvm *kvm)
 	}
 
 	if (IS_VGIC_ADDR_UNDEF(dist->vgic_dist_base)) {
-		kvm_err("Need to set vgic distributor addresses first\n");
+		kvm_debug("Need to set vgic distributor addresses first\n");
 		return -ENXIO;
 	}
 
 	if (!vgic_v3_check_base(kvm)) {
-		kvm_err("VGIC redist and dist frames overlap\n");
+		kvm_debug("VGIC redist and dist frames overlap\n");
 		return -EINVAL;
 	}
 
-- 
GitLab


From e6f6beec38f6d953f0514f602112f85aac8aacf4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 29 Nov 2021 20:00:45 +0000
Subject: [PATCH 2564/4878] FROMGIT: KVM: arm64: Rework kvm_pgtable
 initialisation

Ganapatrao reported that the kvm_pgtable->mmu pointer is more or
less hardcoded to the main S2 mmu structure, while the nested
code needs it to point to other instances (as we have one instance
per nested context).

Rework the initialisation of the kvm_pgtable structure so that
this assumtion doesn't hold true anymore. This requires some
minor changes to the order in which things are initialised
(the mmu->arch pointer being the critical one).

Reported-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Reviewed-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211129200150.351436-5-maz@kernel.org
(cherry picked from commit 9d8604b28575ccab3afd8d6f56cab9a6c0d281ef
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If942bf4a01a975a60c37ad8483eafc52185234d5
---
 arch/arm64/include/asm/kvm_pgtable.h  | 9 ++++-----
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 4 ++--
 arch/arm64/kvm/hyp/pgtable.c          | 6 +++---
 arch/arm64/kvm/mmu.c                  | 4 ++--
 4 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 9d076f36401d1..9f339dffbc1a7 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -291,8 +291,7 @@ u64 kvm_get_vtcr(u64 mmfr0, u64 mmfr1, u32 phys_shift);
 /**
  * __kvm_pgtable_stage2_init() - Initialise a guest stage-2 page-table.
  * @pgt:	Uninitialised page-table structure to initialise.
- * @arch:	Arch-specific KVM structure representing the guest virtual
- *		machine.
+ * @mmu:	S2 MMU context for this S2 translation
  * @mm_ops:	Memory management callbacks.
  * @flags:	Stage-2 configuration flags.
  * @force_pte_cb: Function that returns true if page level mappings must
@@ -300,13 +299,13 @@ u64 kvm_get_vtcr(u64 mmfr0, u64 mmfr1, u32 phys_shift);
  *
  * Return: 0 on success, negative error code on failure.
  */
-int __kvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_arch *arch,
+int __kvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_s2_mmu *mmu,
 			      struct kvm_pgtable_mm_ops *mm_ops,
 			      enum kvm_pgtable_stage2_flags flags,
 			      kvm_pgtable_force_pte_cb_t force_pte_cb);
 
-#define kvm_pgtable_stage2_init(pgt, arch, mm_ops) \
-	__kvm_pgtable_stage2_init(pgt, arch, mm_ops, 0, NULL)
+#define kvm_pgtable_stage2_init(pgt, mmu, mm_ops) \
+	__kvm_pgtable_stage2_init(pgt, mmu, mm_ops, 0, NULL)
 
 /**
  * kvm_pgtable_stage2_destroy() - Destroy an unused guest stage-2 page-table.
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 6e02387a647e3..ca46643683756 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -125,19 +125,19 @@ int kvm_host_prepare_stage2(void *pgt_pool_base)
 
 	prepare_host_vtcr();
 	hyp_spin_lock_init(&host_kvm.lock);
+	mmu->arch = &host_kvm.arch;
 
 	ret = prepare_s2_pool(pgt_pool_base);
 	if (ret)
 		return ret;
 
-	ret = __kvm_pgtable_stage2_init(&host_kvm.pgt, &host_kvm.arch,
+	ret = __kvm_pgtable_stage2_init(&host_kvm.pgt, mmu,
 					&host_kvm.mm_ops, KVM_HOST_S2_FLAGS,
 					host_stage2_force_pte_cb);
 	if (ret)
 		return ret;
 
 	mmu->pgd_phys = __hyp_pa(host_kvm.pgt.pgd);
-	mmu->arch = &host_kvm.arch;
 	mmu->pgt = &host_kvm.pgt;
 	WRITE_ONCE(mmu->vmid.vmid_gen, 0);
 	WRITE_ONCE(mmu->vmid.vmid, 0);
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index adc73f8cd24f5..844a6f003fd54 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -1178,13 +1178,13 @@ int kvm_pgtable_stage2_flush(struct kvm_pgtable *pgt, u64 addr, u64 size)
 }
 
 
-int __kvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_arch *arch,
+int __kvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_s2_mmu *mmu,
 			      struct kvm_pgtable_mm_ops *mm_ops,
 			      enum kvm_pgtable_stage2_flags flags,
 			      kvm_pgtable_force_pte_cb_t force_pte_cb)
 {
 	size_t pgd_sz;
-	u64 vtcr = arch->vtcr;
+	u64 vtcr = mmu->arch->vtcr;
 	u32 ia_bits = VTCR_EL2_IPA(vtcr);
 	u32 sl0 = FIELD_GET(VTCR_EL2_SL0_MASK, vtcr);
 	u32 start_level = VTCR_EL2_TGRAN_SL0_BASE - sl0;
@@ -1197,7 +1197,7 @@ int __kvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_arch *arch,
 	pgt->ia_bits		= ia_bits;
 	pgt->start_level	= start_level;
 	pgt->mm_ops		= mm_ops;
-	pgt->mmu		= &arch->mmu;
+	pgt->mmu		= mmu;
 	pgt->flags		= flags;
 	pgt->force_pte_cb	= force_pte_cb;
 
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 0f869f398b479..647e64df3a1ea 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -637,7 +637,8 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
 	if (!pgt)
 		return -ENOMEM;
 
-	err = kvm_pgtable_stage2_init(pgt, &kvm->arch, &kvm_s2_mm_ops);
+	mmu->arch = &kvm->arch;
+	err = kvm_pgtable_stage2_init(pgt, mmu, &kvm_s2_mm_ops);
 	if (err)
 		goto out_free_pgtable;
 
@@ -650,7 +651,6 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
 	for_each_possible_cpu(cpu)
 		*per_cpu_ptr(mmu->last_vcpu_ran, cpu) = -1;
 
-	mmu->arch = &kvm->arch;
 	mmu->pgt = pgt;
 	mmu->pgd_phys = __pa(pgt->pgd);
 	WRITE_ONCE(mmu->vmid.vmid_gen, 0);
-- 
GitLab


From de60a350d2351d19239dbffb8889910be1e3c0fc Mon Sep 17 00:00:00 2001
From: Zenghui Yu <yuzenghui@huawei.com>
Date: Thu, 30 Dec 2021 22:15:35 +0800
Subject: [PATCH 2565/4878] FROMGIT: KVM: arm64: Fix comment typo in
 kvm_vcpu_finalize_sve()

kvm_arm_init_arch_resources() was renamed to kvm_arm_init_sve() in
commit a3be836df7cb ("KVM: arm/arm64: Demote
kvm_arm_init_arch_resources() to just set up SVE"). Fix the function
name in comment of kvm_vcpu_finalize_sve().

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211230141535.1389-1-yuzenghui@huawei.com
(cherry picked from commit e938eddbeb85f4c0c47e56cd9e09ee196ea1bc1a
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ia4dd418253ee40891559a61430583c3c3188f47a
---
 arch/arm64/kvm/reset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 750ad7d8fb7b1..ba5a1762454dd 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -101,7 +101,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 
 	/*
 	 * Responsibility for these properties is shared between
-	 * kvm_arm_init_arch_resources(), kvm_vcpu_enable_sve() and
+	 * kvm_arm_init_sve(), kvm_vcpu_enable_sve() and
 	 * set_sve_vls().  Double-check here just to be sure:
 	 */
 	if (WARN_ON(!sve_vl_valid(vl) || vl > sve_max_virtualisable_vl ||
-- 
GitLab


From 45bcfde8864a660da89601cc039d6f1520fe5f59 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 4 Jan 2022 17:19:40 +0200
Subject: [PATCH 2566/4878] FROMGIT: KVM: arm64: vgic: Replace kernel.h with
 the necessary inclusions

arm_vgic.h does not require all the stuff that kernel.h provides.
Replace kernel.h inclusion with the list of what is really being used.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220104151940.55399-1-andriy.shevchenko@linux.intel.com
(cherry picked from commit 6c9eeb5f4a9bb2b11a40fd0f15efde7bd33ee908
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I90713958b02f5d11e925c27716d478744796acf8
---
 include/kvm/arm_vgic.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index e602d848fc1ab..bb30a6803d9f0 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -5,9 +5,11 @@
 #ifndef __KVM_ARM_VGIC_H
 #define __KVM_ARM_VGIC_H
 
-#include <linux/kernel.h>
+#include <linux/bits.h>
 #include <linux/kvm.h>
 #include <linux/irqreturn.h>
+#include <linux/kref.h>
+#include <linux/mutex.h>
 #include <linux/spinlock.h>
 #include <linux/static_key.h>
 #include <linux/types.h>
-- 
GitLab


From fbcd938b1d7b3761739ef7e171b5822e07c6a2b6 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sun, 13 Dec 2020 01:54:30 +0900
Subject: [PATCH 2567/4878] UPSTREAM: kbuild: LD_VERSION redenomination

Commit ccbef1674a15 ("Kbuild, lto: add ld-version and ld-ifversion
macros") introduced scripts/ld-version.sh for GCC LTO.

At that time, this script handled 5 version fields because GCC LTO
needed the downstream binutils. (https://lkml.org/lkml/2014/4/8/272)

The code snippet from the submitted patch was as follows:

    # We need HJ Lu's Linux binutils because mainline binutils does not
    # support mixing assembler and LTO code in the same ld -r object.
    # XXX check if the gcc plugin ld is the expected one too
    # XXX some Fedora binutils should also support it. How to check for that?
    ifeq ($(call ld-ifversion,-ge,22710001,y),y)
        ...

However, GCC LTO was not merged into the mainline after all.
(https://lkml.org/lkml/2014/4/8/272)

So, the 4th and 5th fields were never used, and finally removed by
commit 0d61ed17dd30 ("ld-version: Drop the 4th and 5th version
components").

Since then, the last 4-digits returned by this script is always zeros.

Remove the meaningless last 4-digits. This makes the version format
consistent with GCC_VERSION, CLANG_VERSION, LLD_VERSION.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Bug: 210043760
(cherry picked from commit 052c805a1851a4415f9e2adfa9654a0b793e0c45)
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I544ebf950d7cd2b58e5f3c0f89b38869ace80146
---
 arch/arm64/Kconfig            | 2 +-
 arch/mips/loongson64/Platform | 2 +-
 arch/mips/vdso/Kconfig        | 2 +-
 arch/powerpc/Makefile         | 2 +-
 arch/powerpc/lib/Makefile     | 2 +-
 scripts/ld-version.sh         | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9840e52301b89..dc910c4694ef6 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1505,7 +1505,7 @@ config ARM64_PTR_AUTH
 	depends on (CC_HAS_SIGN_RETURN_ADDRESS || CC_HAS_BRANCH_PROT_PAC_RET) && AS_HAS_PAC
 	# Modern compilers insert a .note.gnu.property section note for PAC
 	# which is only understood by binutils starting with version 2.33.1.
-	depends on LD_IS_LLD || LD_VERSION >= 233010000 || (CC_IS_GCC && GCC_VERSION < 90100)
+	depends on LD_IS_LLD || LD_VERSION >= 23301 || (CC_IS_GCC && GCC_VERSION < 90100)
 	depends on !CC_IS_CLANG || AS_HAS_CFI_NEGATE_RA_STATE
 	depends on (!FUNCTION_GRAPH_TRACER || DYNAMIC_FTRACE_WITH_REGS)
 	help
diff --git a/arch/mips/loongson64/Platform b/arch/mips/loongson64/Platform
index e2354e128d9a0..3e660d6d3c2bd 100644
--- a/arch/mips/loongson64/Platform
+++ b/arch/mips/loongson64/Platform
@@ -13,7 +13,7 @@ cflags-$(CONFIG_CPU_LOONGSON64)	+= -Wa,--trap
 # can't easily be used safely within the kbuild framework.
 #
 ifeq ($(call cc-ifversion, -ge, 0409, y), y)
-  ifeq ($(call ld-ifversion, -ge, 225000000, y), y)
+  ifeq ($(call ld-ifversion, -ge, 22500, y), y)
     cflags-$(CONFIG_CPU_LOONGSON64)  += \
       $(call cc-option,-march=loongson3a -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64)
   else
diff --git a/arch/mips/vdso/Kconfig b/arch/mips/vdso/Kconfig
index 7aec721398d59..a665f6108cb5a 100644
--- a/arch/mips/vdso/Kconfig
+++ b/arch/mips/vdso/Kconfig
@@ -12,7 +12,7 @@
 # the lack of relocations. As such, we disable the VDSO for microMIPS builds.
 
 config MIPS_LD_CAN_LINK_VDSO
-	def_bool LD_VERSION >= 225000000 || LD_IS_LLD
+	def_bool LD_VERSION >= 22500 || LD_IS_LLD
 
 config MIPS_DISABLE_VDSO
 	def_bool CPU_MICROMIPS || (!CPU_MIPSR6 && !MIPS_LD_CAN_LINK_VDSO)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 5c8c06215dd4b..6a9a852c3d566 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -65,7 +65,7 @@ UTS_MACHINE := $(subst $(space),,$(machine-y))
 ifdef CONFIG_PPC32
 KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
 else
-ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
+ifeq ($(call ld-ifversion, -ge, 22500, y),y)
 # Have the linker provide sfpr if possible.
 # There is a corresponding test in arch/powerpc/lib/Makefile
 KBUILD_LDFLAGS_MODULE += --save-restore-funcs
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 58991233381ed..248f7c9e36fce 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -34,7 +34,7 @@ obj-$(CONFIG_FUNCTION_ERROR_INJECTION)	+= error-inject.o
 # 64-bit linker creates .sfpr on demand for final link (vmlinux),
 # so it is only needed for modules, and only for older linkers which
 # do not support --save-restore-funcs
-ifeq ($(call ld-ifversion, -lt, 225000000, y),y)
+ifeq ($(call ld-ifversion, -lt, 22500, y),y)
 extra-$(CONFIG_PPC64)	+= crtsavres.o
 endif
 
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index f2be0ff9a738a..0f8a2c0f95026 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -6,6 +6,6 @@
 	gsub(".*version ", "");
 	gsub("-.*", "");
 	split($1,a, ".");
-	print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
+	print a[1]*10000 + a[2]*100 + a[3];
 	exit
 	}
-- 
GitLab


From 08436c53793620c51d83a4fcf7e1d2e9918ee244 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sat, 16 Jan 2021 08:35:42 +0900
Subject: [PATCH 2568/4878] UPSTREAM: kbuild: check the minimum compiler
 version in Kconfig

Paul Gortmaker reported a regression in the GCC version check. [1]
If you use GCC 4.8, the build breaks before showing the error message
"error Sorry, your version of GCC is too old - please use 4.9 or newer."

I do not want to apply his fix-up since it implies we would not be able
to remove any cc-option test. Anyway, I admit checking the GCC version
in <linux/compiler-gcc.h> is too late.

Almost at the same time, Linus also suggested to move the compiler
version error to Kconfig time. [2]

I unified the two similar scripts, gcc-version.sh and clang-version.sh
into cc-version.sh. The old scripts invoked the compiler multiple times
(3 times for gcc-version.sh, 4 times for clang-version.sh). I refactored
the code so the new one invokes the compiler just once, and also tried
my best to use shell-builtin commands where possible.

The new script runs faster.

  $ time ./scripts/clang-version.sh clang
  120000

  real    0m0.029s
  user    0m0.012s
  sys     0m0.021s

  $ time ./scripts/cc-version.sh clang
  Clang 120000

  real    0m0.009s
  user    0m0.006s
  sys     0m0.004s

cc-version.sh also shows an error message if the compiler is too old:

  $ make defconfig CC=clang-9
  *** Default configuration is based on 'x86_64_defconfig'
  ***
  *** Compiler is too old.
  ***   Your Clang version:    9.0.1
  ***   Minimum Clang version: 10.0.1
  ***
  scripts/Kconfig.include:46: Sorry, this compiler is not supported.
  make[1]: *** [scripts/kconfig/Makefile:81: defconfig] Error 1
  make: *** [Makefile:602: defconfig] Error 2

The new script takes care of ICC because we have <linux/compiler-intel.h>
although I am not sure if building the kernel with ICC is well-supported.

[1]: https://lore.kernel.org/r/20210110190807.134996-1-paul.gortmaker@windriver.com
[2]: https://lore.kernel.org/r/CAHk-=wh-+TMHPTFo1qs-MYyK7tZh-OQovA=pP3=e06aCVp6_kA@mail.gmail.com

Fixes: 87de84c9140e ("kbuild: remove cc-option test of -Werror=date-time")
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Bug: 210043760
(cherry picked from commit aec6c60a01d3a3170242d6a99372a388e1136dc6)
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I61e4eb8b4ef5466d0ee8c5892973734c98529b17
---
 include/linux/compiler-clang.h | 10 -----
 include/linux/compiler-gcc.h   | 11 -----
 init/Kconfig                   |  9 ++--
 scripts/Kconfig.include        |  6 +++
 scripts/cc-version.sh          | 82 ++++++++++++++++++++++++++++++++++
 scripts/clang-version.sh       | 19 --------
 scripts/gcc-version.sh         | 20 ---------
 7 files changed, 93 insertions(+), 64 deletions(-)
 create mode 100755 scripts/cc-version.sh
 delete mode 100755 scripts/clang-version.sh
 delete mode 100755 scripts/gcc-version.sh

diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index 8a26cd9667412..49b0ac8b6fd32 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -3,16 +3,6 @@
 #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
 #endif
 
-#define CLANG_VERSION (__clang_major__ * 10000	\
-		     + __clang_minor__ * 100	\
-		     + __clang_patchlevel__)
-
-#if CLANG_VERSION < 100001
-#ifndef __BPF_TRACING__
-# error Sorry, your version of Clang is too old - please use 10.0.1 or newer.
-#endif
-#endif
-
 /* Compiler specific definitions for Clang compiler */
 
 /* same as gcc, this was present in clang-2.6 so we can assume it works
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 4cf524ccab430..c6ab0dcb9c0c7 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -10,17 +10,6 @@
 		     + __GNUC_MINOR__ * 100	\
 		     + __GNUC_PATCHLEVEL__)
 
-/* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 */
-#if GCC_VERSION < 40900
-# error Sorry, your version of GCC is too old - please use 4.9 or newer.
-#elif defined(CONFIG_ARM64) && GCC_VERSION < 50100
-/*
- * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
- * https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
- */
-# error Sorry, your version of GCC is too old - please use 5.1 or newer.
-#endif
-
 /*
  * This macro obfuscates arithmetic on a variable address so that gcc
  * shouldn't recognize the original var, and make assumptions about it.
diff --git a/init/Kconfig b/init/Kconfig
index 65d6c12ab4d53..0bfb6be0147d7 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -26,11 +26,11 @@ config CC_VERSION_TEXT
 	    and then every file will be rebuilt.
 
 config CC_IS_GCC
-	def_bool $(success,echo "$(CC_VERSION_TEXT)" | grep -q gcc)
+	def_bool $(success,test "$(cc-name)" = GCC)
 
 config GCC_VERSION
 	int
-	default $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
+	default $(cc-version) if CC_IS_GCC
 	default 0
 
 config LD_VERSION
@@ -38,14 +38,15 @@ config LD_VERSION
 	default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh)
 
 config CC_IS_CLANG
-	def_bool $(success,echo "$(CC_VERSION_TEXT)" | grep -q clang)
+	def_bool $(success,test "$(cc-name)" = Clang)
 
 config LD_IS_LLD
 	def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD)
 
 config CLANG_VERSION
 	int
-	default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+	default $(cc-version) if CC_IS_CLANG
+	default 0
 
 config LLD_VERSION
 	int
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index a5fe72c504ffb..0228cb9c74aa3 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -39,6 +39,12 @@ as-instr = $(success,printf "%b\n" "$(1)" | $(CC) $(CLANG_FLAGS) -c -x assembler
 $(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found)
 $(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found)
 
+# Get the compiler name, version, and error out if it is not supported.
+cc-info := $(shell,$(srctree)/scripts/cc-version.sh $(CC))
+$(error-if,$(success,test -z "$(cc-info)"),Sorry$(comma) this compiler is not supported.)
+cc-name := $(shell,set -- $(cc-info) && echo $1)
+cc-version := $(shell,set -- $(cc-info) && echo $2)
+
 # Fail if the linker is gold as it's not capable of linking the kernel proper
 $(error-if,$(success, $(LD) -v | grep -q gold), gold linker '$(LD)' not supported)
 
diff --git a/scripts/cc-version.sh b/scripts/cc-version.sh
new file mode 100755
index 0000000000000..3f2ee885b1169
--- /dev/null
+++ b/scripts/cc-version.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Print the compiler name and its version in a 5 or 6-digit form.
+# Also, perform the minimum version check.
+
+set -e
+
+# When you raise the minimum compiler version, please update
+# Documentation/process/changes.rst as well.
+gcc_min_version=4.9.0
+clang_min_version=10.0.1
+icc_min_version=16.0.3 # temporary
+
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
+# https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
+if [ "$SRCARCH" = arm64 ]; then
+	gcc_min_version=5.1.0
+fi
+
+# Print the compiler name and some version components.
+get_compiler_info()
+{
+	cat <<- EOF | "$@" -E -P -x c - 2>/dev/null
+	#if defined(__clang__)
+	Clang	__clang_major__  __clang_minor__  __clang_patchlevel__
+	#elif defined(__INTEL_COMPILER)
+	ICC	__INTEL_COMPILER  __INTEL_COMPILER_UPDATE
+	#elif defined(__GNUC__)
+	GCC	__GNUC__  __GNUC_MINOR__  __GNUC_PATCHLEVEL__
+	#else
+	unknown
+	#endif
+	EOF
+}
+
+# Convert the version string x.y.z to a canonical 5 or 6-digit form.
+get_canonical_version()
+{
+	IFS=.
+	set -- $1
+	echo $((10000 * $1 + 100 * $2 + $3))
+}
+
+# $@ instead of $1 because multiple words might be given, e.g. CC="ccache gcc".
+orig_args="$@"
+set -- $(get_compiler_info "$@")
+
+name=$1
+
+case "$name" in
+GCC)
+	version=$2.$3.$4
+	min_version=$gcc_min_version
+	;;
+Clang)
+	version=$2.$3.$4
+	min_version=$clang_min_version
+	;;
+ICC)
+	version=$(($2 / 100)).$(($2 % 100)).$3
+	min_version=$icc_min_version
+	;;
+*)
+	echo "$orig_args: unknown compiler" >&2
+	exit 1
+	;;
+esac
+
+cversion=$(get_canonical_version $version)
+min_cversion=$(get_canonical_version $min_version)
+
+if [ "$cversion" -lt "$min_cversion" ]; then
+	echo >&2 "***"
+	echo >&2 "*** Compiler is too old."
+	echo >&2 "***   Your $name version:    $version"
+	echo >&2 "***   Minimum $name version: $min_version"
+	echo >&2 "***"
+	exit 1
+fi
+
+echo $name $cversion
diff --git a/scripts/clang-version.sh b/scripts/clang-version.sh
deleted file mode 100755
index 6fabf06957619..0000000000000
--- a/scripts/clang-version.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# clang-version clang-command
-#
-# Print the compiler version of `clang-command' in a 5 or 6-digit form
-# such as `50001' for clang-5.0.1 etc.
-
-compiler="$*"
-
-if ! ( $compiler --version | grep -q clang) ; then
-	echo 0
-	exit 1
-fi
-
-MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
-MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
-PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
-printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
diff --git a/scripts/gcc-version.sh b/scripts/gcc-version.sh
deleted file mode 100755
index ae353432539bf..0000000000000
--- a/scripts/gcc-version.sh
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# gcc-version gcc-command
-#
-# Print the gcc version of `gcc-command' in a 5 or 6-digit form
-# such as `29503' for gcc-2.95.3, `30301' for gcc-3.3.1, etc.
-
-compiler="$*"
-
-if [ ${#compiler} -eq 0 ]; then
-	echo "Error: No compiler specified." >&2
-	printf "Usage:\n\t$0 <gcc-command>\n" >&2
-	exit 1
-fi
-
-MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1)
-MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1)
-PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1)
-printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
-- 
GitLab


From 441ce3aebf2abf178ad496afc6b35f73c79bc060 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Tue, 16 Feb 2021 12:10:04 +0900
Subject: [PATCH 2569/4878] BACKPORT: kbuild: check the minimum linker version
 in Kconfig

Unify the two scripts/ld-version.sh and scripts/lld-version.sh, and
check the minimum linker version like scripts/cc-version.sh did.

I tested this script for some corner cases reported in the past:

 - GNU ld version 2.25-15.fc23
   as reported by commit 8083013fc320 ("ld-version: Fix it on Fedora")

 - GNU ld (GNU Binutils) 2.20.1.20100303
   as reported by commit 0d61ed17dd30 ("ld-version: Drop the 4th and
   5th version components")

This script show an error message if the linker is too old:

  $ make LD=ld.lld-9
    SYNC    include/config/auto.conf
  ***
  *** Linker is too old.
  ***   Your LLD version:    9.0.1
  ***   Minimum LLD version: 10.0.1
  ***
  scripts/Kconfig.include:50: Sorry, this linker is not supported.
  make[2]: *** [scripts/kconfig/Makefile:71: syncconfig] Error 1
  make[1]: *** [Makefile:600: syncconfig] Error 2
  make: *** [Makefile:708: include/config/auto.conf] Error 2

I also moved the check for gold to this script, so gold is still rejected:

  $ make LD=gold
    SYNC    include/config/auto.conf
  gold linker is not supported as it is not capable of linking the kernel proper.
  scripts/Kconfig.include:50: Sorry, this linker is not supported.
  make[2]: *** [scripts/kconfig/Makefile:71: syncconfig] Error 1
  make[1]: *** [Makefile:600: syncconfig] Error 2
  make: *** [Makefile:708: include/config/auto.conf] Error 2

Thanks to David Laight for suggesting shell script improvements.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
[nd: conflict in scripts/lld-version.sh due to df58fb431aa3
  ("scripts/lld-version.sh: Rewrite based on upstream ld-version.sh")
  being 5.10 only]
Bug: 210043760
(cherry picked from commit 02aff85922043cf175ebbe5fc3430acfeaeb8393)
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I1618f31566b84dd601ca2c9665f6d341df56537d
---
 MAINTAINERS             |  1 -
 init/Kconfig            | 21 +++++++----
 scripts/Kconfig.include |  7 +++-
 scripts/ld-version.sh   | 82 ++++++++++++++++++++++++++++++++++++-----
 scripts/lld-version.sh  | 37 -------------------
 5 files changed, 90 insertions(+), 58 deletions(-)
 delete mode 100755 scripts/lld-version.sh

diff --git a/MAINTAINERS b/MAINTAINERS
index 52ed5a3eeb93f..1e22c46738159 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4295,7 +4295,6 @@ B:	https://github.com/ClangBuiltLinux/linux/issues
 C:	irc://chat.freenode.net/clangbuiltlinux
 F:	Documentation/kbuild/llvm.rst
 F:	scripts/clang-tools/
-F:	scripts/lld-version.sh
 K:	\b(?i:clang|llvm)\b
 
 CLEANCACHE API
diff --git a/init/Kconfig b/init/Kconfig
index 0bfb6be0147d7..2ee42bb12d433 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -33,24 +33,29 @@ config GCC_VERSION
 	default $(cc-version) if CC_IS_GCC
 	default 0
 
-config LD_VERSION
-	int
-	default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh)
-
 config CC_IS_CLANG
 	def_bool $(success,test "$(cc-name)" = Clang)
 
-config LD_IS_LLD
-	def_bool $(success,$(LD) -v | head -n 1 | grep -q LLD)
-
 config CLANG_VERSION
 	int
 	default $(cc-version) if CC_IS_CLANG
 	default 0
 
+config LD_IS_BFD
+	def_bool $(success,test "$(ld-name)" = BFD)
+
+config LD_VERSION
+	int
+	default $(ld-version) if LD_IS_BFD
+	default 0
+
+config LD_IS_LLD
+	def_bool $(success,test "$(ld-name)" = LLD)
+
 config LLD_VERSION
 	int
-	default $(shell,$(srctree)/scripts/lld-version.sh $(LD))
+	default $(ld-version) if LD_IS_LLD
+	default 0
 
 config CC_CAN_LINK
 	bool
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 0228cb9c74aa3..58fdb5308725c 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -45,8 +45,11 @@ $(error-if,$(success,test -z "$(cc-info)"),Sorry$(comma) this compiler is not su
 cc-name := $(shell,set -- $(cc-info) && echo $1)
 cc-version := $(shell,set -- $(cc-info) && echo $2)
 
-# Fail if the linker is gold as it's not capable of linking the kernel proper
-$(error-if,$(success, $(LD) -v | grep -q gold), gold linker '$(LD)' not supported)
+# Get the linker name, version, and error out if it is not supported.
+ld-info := $(shell,$(srctree)/scripts/ld-version.sh $(LD))
+$(error-if,$(success,test -z "$(ld-info)"),Sorry$(comma) this linker is not supported.)
+ld-name := $(shell,set -- $(ld-info) && echo $1)
+ld-version := $(shell,set -- $(ld-info) && echo $2)
 
 # machine bit flags
 #  $(m32-flag): -m32 if the compiler supports it, or an empty string otherwise.
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index 0f8a2c0f95026..a463273509b56 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -1,11 +1,73 @@
-#!/usr/bin/awk -f
+#!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
-# extract linker version number from stdin and turn into single number
-	{
-	gsub(".*\\)", "");
-	gsub(".*version ", "");
-	gsub("-.*", "");
-	split($1,a, ".");
-	print a[1]*10000 + a[2]*100 + a[3];
-	exit
-	}
+#
+# Print the linker name and its version in a 5 or 6-digit form.
+# Also, perform the minimum version check.
+
+set -e
+
+# When you raise the minimum linker version, please update
+# Documentation/process/changes.rst as well.
+bfd_min_version=2.23.0
+lld_min_version=10.0.1
+
+# Convert the version string x.y.z to a canonical 5 or 6-digit form.
+get_canonical_version()
+{
+	IFS=.
+	set -- $1
+
+	# If the 2nd or 3rd field is missing, fill it with a zero.
+	#
+	# The 4th field, if present, is ignored.
+	# This occurs in development snapshots as in 2.35.1.20201116
+	echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
+}
+
+orig_args="$@"
+
+# Get the first line of the --version output.
+IFS='
+'
+set -- $("$@" --version)
+
+# Split the line on spaces.
+IFS=' '
+set -- $1
+
+if [ "$1" = GNU -a "$2" = ld ]; then
+	shift $(($# - 1))
+	version=$1
+	min_version=$bfd_min_version
+	name=BFD
+	disp_name="GNU ld"
+elif [ "$1" = GNU -a "$2" = gold ]; then
+	echo "gold linker is not supported as it is not capable of linking the kernel proper." >&2
+	exit 1
+elif [ "$1" = LLD ]; then
+	version=$2
+	min_version=$lld_min_version
+	name=LLD
+	disp_name=LLD
+else
+	echo "$orig_args: unknown linker" >&2
+	exit 1
+fi
+
+# Some distributions append a package release number, as in 2.34-4.fc32
+# Trim the hyphen and any characters that follow.
+version=${version%-*}
+
+cversion=$(get_canonical_version $version)
+min_cversion=$(get_canonical_version $min_version)
+
+if [ "$cversion" -lt "$min_cversion" ]; then
+	echo >&2 "***"
+	echo >&2 "*** Linker is too old."
+	echo >&2 "***   Your $disp_name version:    $version"
+	echo >&2 "***   Minimum $disp_name version: $min_version"
+	echo >&2 "***"
+	exit 1
+fi
+
+echo $name $cversion
diff --git a/scripts/lld-version.sh b/scripts/lld-version.sh
deleted file mode 100755
index f1eeee450a23c..0000000000000
--- a/scripts/lld-version.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/sh
-# SPDX-License-Identifier: GPL-2.0
-#
-# Usage: $ ./scripts/lld-version.sh ld.lld
-#
-# Print the linker version of `ld.lld' in a 5 or 6-digit form
-# such as `100001' for ld.lld 10.0.1 etc.
-
-set -e
-
-# Convert the version string x.y.z to a canonical 5 or 6-digit form.
-get_canonical_version()
-{
-	IFS=.
-	set -- $1
-
-	# If the 2nd or 3rd field is missing, fill it with a zero.
-	echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
-}
-
-# Get the first line of the --version output.
-IFS='
-'
-set -- $(LC_ALL=C "$@" --version)
-
-# Split the line on spaces.
-IFS=' '
-set -- $1
-
-while [ $# -gt 1 -a "$1" != "LLD" ]; do
-	shift
-done
-if [ "$1" = LLD ]; then
-	echo $(get_canonical_version ${2%-*})
-else
-	echo 0
-fi
-- 
GitLab


From d07a1c097b16779eb920eafaefae17dfeb20b280 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bernhard=20Rosenkr=C3=A4nzer?= <bero@lindev.ch>
Date: Tue, 2 Mar 2021 23:12:11 +0100
Subject: [PATCH 2570/4878] UPSTREAM: kbuild: Fix ld-version.sh script if LLD
 was built with LLD_VENDOR
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If LLD was built with -DLLD_VENDOR="xyz", ld.lld --version output
will prefix LLD_VENDOR. Since LLD_VENDOR can contain spaces, the
LLD identifier isn't guaranteed to be $2 either.

Adjust the version checker to handle such versions of lld.

Link: https://lore.kernel.org/lkml/20210302221211.1620858-1-bero@lindev.ch/
Signed-off-by: Bernhard Rosenkränzer <bero@lindev.ch>
[masahiro yamada: refactor the code]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
(cherry picked from commit 1f09af062556f0610c08e2f3d680a8b8bc40dd48)
Bug: 210043760
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Ic9a5b75cf0e7ffebcc77e81b4402c579dd13f3e2
---
 scripts/ld-version.sh | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index a463273509b56..30debf78aa090 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -44,14 +44,20 @@ if [ "$1" = GNU -a "$2" = ld ]; then
 elif [ "$1" = GNU -a "$2" = gold ]; then
 	echo "gold linker is not supported as it is not capable of linking the kernel proper." >&2
 	exit 1
-elif [ "$1" = LLD ]; then
-	version=$2
-	min_version=$lld_min_version
-	name=LLD
-	disp_name=LLD
 else
-	echo "$orig_args: unknown linker" >&2
-	exit 1
+	while [ $# -gt 1 -a "$1" != "LLD" ]; do
+		shift
+	done
+
+	if [ "$1" = LLD ]; then
+		version=$2
+		min_version=$lld_min_version
+		name=LLD
+		disp_name=LLD
+	else
+		echo "$orig_args: unknown linker" >&2
+		exit 1
+	fi
 fi
 
 # Some distributions append a package release number, as in 2.34-4.fc32
-- 
GitLab


From 762dcbe77754abce3de65f2e508c2241e8c193b0 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sat, 13 Mar 2021 04:38:14 +0900
Subject: [PATCH 2571/4878] UPSTREAM: kbuild: fix ld-version.sh to not be
 affected by locale

ld-version.sh checks the output from $(LD) --version, but it has a
problem on some locales.

For example, in Italian:

  $ LC_MESSAGES=it_IT.UTF-8 ld --version | head -n 1
  ld di GNU (GNU Binutils for Debian) 2.35.2

This makes ld-version.sh fail because it expects "GNU ld" for the
BFD linker case.

Add LC_ALL=C to override the user's locale.

BTW, setting LC_MESSAGES=C (or LANG=C) is not enough because it is
ineffective if LC_ALL is set on the user's environment.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=212105
Reported-by: Marco Scardovi
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Recensito-da: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
(cherry picked from commit bcbcf50f521843445c9ea320a0569874f88c4b7a)
Bug: 210043760
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I6199f965c921344d17878ed08f386ac9787e29c1
---
 scripts/ld-version.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index 30debf78aa090..1bf3aadde9def 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -29,7 +29,7 @@ orig_args="$@"
 # Get the first line of the --version output.
 IFS='
 '
-set -- $("$@" --version)
+set -- $(LC_ALL=C "$@" --version)
 
 # Split the line on spaces.
 IFS=' '
-- 
GitLab


From d5c19346d14b2bdccf8b127cdbcc36696539d6bb Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Tue, 16 Mar 2021 01:12:55 +0900
Subject: [PATCH 2572/4878] UPSTREAM: kbuild: collect minimum tool versions
 into scripts/min-tool-version.sh

The kernel build uses various tools, many of which are provided by the
same software suite, for example, LLVM and Binutils.

When you raise the minimum version of Clang/LLVM, you need to update
clang_min_version in scripts/cc-version.sh and also lld_min_version in
scripts/ld-version.sh.

Kbuild can handle CC=clang and LD=ld.lld independently, but it does not
make much sense to maintain their versions separately.

Let's create a central place of minimum tool versions so you do not need
to touch multiple files. scripts/min-tool-version.sh prints the minimum
version of the given tool.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
(cherry picked from commit e24b3ffcf4216d819b52618b6f17ba7410d1d845)
Bug: 210043760
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Iff8e4180d4dd6c1b94423c9f70e78ba4e59233ac
---
 scripts/cc-version.sh       | 20 +++++--------------
 scripts/ld-version.sh       | 11 ++++-------
 scripts/min-tool-version.sh | 39 +++++++++++++++++++++++++++++++++++++
 3 files changed, 48 insertions(+), 22 deletions(-)
 create mode 100755 scripts/min-tool-version.sh

diff --git a/scripts/cc-version.sh b/scripts/cc-version.sh
index 3f2ee885b1169..f1952c5224662 100755
--- a/scripts/cc-version.sh
+++ b/scripts/cc-version.sh
@@ -6,18 +6,6 @@
 
 set -e
 
-# When you raise the minimum compiler version, please update
-# Documentation/process/changes.rst as well.
-gcc_min_version=4.9.0
-clang_min_version=10.0.1
-icc_min_version=16.0.3 # temporary
-
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
-# https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
-if [ "$SRCARCH" = arm64 ]; then
-	gcc_min_version=5.1.0
-fi
-
 # Print the compiler name and some version components.
 get_compiler_info()
 {
@@ -48,18 +36,20 @@ set -- $(get_compiler_info "$@")
 
 name=$1
 
+min_tool_version=$(dirname $0)/min-tool-version.sh
+
 case "$name" in
 GCC)
 	version=$2.$3.$4
-	min_version=$gcc_min_version
+	min_version=$($min_tool_version gcc)
 	;;
 Clang)
 	version=$2.$3.$4
-	min_version=$clang_min_version
+	min_version=$($min_tool_version llvm)
 	;;
 ICC)
 	version=$(($2 / 100)).$(($2 % 100)).$3
-	min_version=$icc_min_version
+	min_version=$($min_tool_version icc)
 	;;
 *)
 	echo "$orig_args: unknown compiler" >&2
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index 1bf3aadde9def..a78b804b680cf 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -6,11 +6,6 @@
 
 set -e
 
-# When you raise the minimum linker version, please update
-# Documentation/process/changes.rst as well.
-bfd_min_version=2.23.0
-lld_min_version=10.0.1
-
 # Convert the version string x.y.z to a canonical 5 or 6-digit form.
 get_canonical_version()
 {
@@ -35,10 +30,12 @@ set -- $(LC_ALL=C "$@" --version)
 IFS=' '
 set -- $1
 
+min_tool_version=$(dirname $0)/min-tool-version.sh
+
 if [ "$1" = GNU -a "$2" = ld ]; then
 	shift $(($# - 1))
 	version=$1
-	min_version=$bfd_min_version
+	min_version=$($min_tool_version binutils)
 	name=BFD
 	disp_name="GNU ld"
 elif [ "$1" = GNU -a "$2" = gold ]; then
@@ -51,7 +48,7 @@ else
 
 	if [ "$1" = LLD ]; then
 		version=$2
-		min_version=$lld_min_version
+		min_version=$($min_tool_version llvm)
 		name=LLD
 		disp_name=LLD
 	else
diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh
new file mode 100755
index 0000000000000..d22cf91212b0b
--- /dev/null
+++ b/scripts/min-tool-version.sh
@@ -0,0 +1,39 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Print the minimum supported version of the given tool.
+# When you raise the minimum version, please update
+# Documentation/process/changes.rst as well.
+
+set -e
+
+if [ $# != 1 ]; then
+	echo "Usage: $0 toolname" >&2
+	exit 1
+fi
+
+case "$1" in
+binutils)
+	echo 2.23.0
+	;;
+gcc)
+	# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
+	# https://lore.kernel.org/r/20210107111841.GN1551@shell.armlinux.org.uk
+	if [ "$SRCARCH" = arm64 ]; then
+		echo 5.1.0
+	else
+		echo 4.9.0
+	fi
+	;;
+icc)
+	# temporary
+	echo 16.0.3
+	;;
+llvm)
+	echo 10.0.1
+	;;
+*)
+	echo "$1: unknown tool" >&2
+	exit 1
+	;;
+esac
-- 
GitLab


From 7ee179e5fb9b8cd90d66ae0cfb0ae4369f9ed4db Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Fri, 7 Jan 2022 22:29:06 +0000
Subject: [PATCH 2573/4878] ANDROID: GKI: Disable module signing support from
 gki_defconfig

Device kernels merge gki_defconfig for modules build;
forcing them to sign the modules with no certificates
from the gki build available causing breakage.

GKI module signing support will be enabled via config
fragment; so partner builds don't have to disable support
in their fragments.

Fixes: 9ab6a242258a ("ANDROID: GKI: Add module load time protected symbol lookup")
Bug: 200082547
Test: TreeHugger, local builds
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Ia90f0acd57ba9a8795da3f85c2cbe21758f5f4fb
---
 arch/arm64/configs/gki_defconfig | 2 --
 arch/x86/configs/gki_defconfig   | 2 --
 2 files changed, 4 deletions(-)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index d5c5ed23294a7..460f739437ee5 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -100,8 +100,6 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
-CONFIG_MODULE_SIG=y
-CONFIG_MODULE_SIG_PROTECT=y
 CONFIG_BLK_CGROUP_IOCOST=y
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 0e46ce5459ad5..bfb97f17d0975 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -76,8 +76,6 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
-CONFIG_MODULE_SIG=y
-CONFIG_MODULE_SIG_PROTECT=y
 CONFIG_BLK_CGROUP_IOCOST=y
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
-- 
GitLab


From 1ac9fa723de477329e740bf4449ae1749da367f5 Mon Sep 17 00:00:00 2001
From: Yang Li <yang.lee@linux.alibaba.com>
Date: Wed, 15 Dec 2021 10:38:58 +0800
Subject: [PATCH 2574/4878] f2fs: Simplify bool conversion

Fix the following coccicheck warning:
./fs/f2fs/sysfs.c:491:41-46: WARNING: conversion to bool not needed here

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index be6f83d290f8e..26362498a2b30 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -491,7 +491,7 @@ out:
 
 	if (!strcmp(a->attr.name, "gc_urgent_high_remaining")) {
 		spin_lock(&sbi->gc_urgent_high_lock);
-		sbi->gc_urgent_high_limited = t == 0 ? false : true;
+		sbi->gc_urgent_high_limited = t != 0;
 		sbi->gc_urgent_high_remaining = t;
 		spin_unlock(&sbi->gc_urgent_high_lock);
 
-- 
GitLab


From 348a15eed61b75782ecb3d904908b0d2ab30af35 Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Wed, 29 Dec 2021 17:47:00 +0800
Subject: [PATCH 2575/4878] f2fs: remove redunant invalidate compress pages

Compress page will invalidate in truncate block process too, so remove
redunant invalidate compress pages in f2fs_evict_inode.

Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 2ab3b424735a4..1d85f1e58d32d 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -751,7 +751,8 @@ void f2fs_evict_inode(struct inode *inode)
 	trace_f2fs_evict_inode(inode);
 	truncate_inode_pages_final(&inode->i_data);
 
-	if (test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
+	if ((inode->i_nlink || is_bad_inode(inode)) &&
+		test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
 		f2fs_invalidate_compress_pages(sbi, inode->i_ino);
 
 	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
-- 
GitLab


From 0edd8d1b389878c67a930a587c211cbbba9d0a89 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Fri, 7 Jan 2022 15:47:07 -0800
Subject: [PATCH 2576/4878] ANDROID: clang: update to 14.0.1

Bug: 213621148
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Iaeb367b833fa39171195e5914f843fe282040a72
---
 build.config.constants | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.constants b/build.config.constants
index 3ba91bacef594..770744dc239a5 100644
--- a/build.config.constants
+++ b/build.config.constants
@@ -1 +1 @@
-CLANG_VERSION=r437112
+CLANG_VERSION=r437112b
-- 
GitLab


From a5f73082c636e7419b94957707b6a7c34dddf2eb Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Tue, 16 Mar 2021 01:12:56 +0900
Subject: [PATCH 2577/4878] BACKPORT: kbuild: check the minimum assembler
 version in Kconfig

Documentation/process/changes.rst defines the minimum assembler version
(binutils version), but we have never checked it in the build time.

Kbuild never invokes 'as' directly because all assembly files in the
kernel tree are *.S, hence must be preprocessed. I do not expect
raw assembly source files (*.s) would be added to the kernel tree.

Therefore, we always use $(CC) as the assembler driver, and commit
aa824e0c962b ("kbuild: remove AS variable") removed 'AS'. However,
we are still interested in the version of the assembler acting behind.

As usual, the --version option prints the version string.

  $ as --version | head -n 1
  GNU assembler (GNU Binutils for Ubuntu) 2.35.1

But, we do not have $(AS). So, we can add the -Wa prefix so that
$(CC) passes --version down to the backing assembler.

  $ gcc -Wa,--version | head -n 1
  gcc: fatal error: no input files
  compilation terminated.

OK, we need to input something to satisfy gcc.

  $ gcc -Wa,--version -c -x assembler /dev/null -o /dev/null | head -n 1
  GNU assembler (GNU Binutils for Ubuntu) 2.35.1

The combination of Clang and GNU assembler works in the same way:

  $ clang -no-integrated-as -Wa,--version -c -x assembler /dev/null -o /dev/null | head -n 1
  GNU assembler (GNU Binutils for Ubuntu) 2.35.1

Clang with the integrated assembler fails like this:

  $ clang -integrated-as -Wa,--version -c -x assembler /dev/null -o /dev/null | head -n 1
  clang: error: unsupported argument '--version' to option 'Wa,'

For the last case, checking the error message is fragile. If the
proposal for -Wa,--version support [1] is accepted, this may not be
even an error in the future.

One easy way is to check if -integrated-as is present in the passed
arguments. We did not pass -integrated-as to CLANG_FLAGS before, but
we can make it explicit.

Nathan pointed out -integrated-as is the default for all of the
architectures/targets that the kernel cares about, but it goes
along with "explicit is better than implicit" policy. [2]

With all this in my mind, I implemented scripts/as-version.sh to
check the assembler version in Kconfig time.

  $ scripts/as-version.sh gcc
  GNU 23501
  $ scripts/as-version.sh clang -no-integrated-as
  GNU 23501
  $ scripts/as-version.sh clang -integrated-as
  LLVM 0

[1]: https://github.com/ClangBuiltLinux/linux/issues/1320
[2]: https://lore.kernel.org/linux-kbuild/20210307044253.v3h47ucq6ng25iay@archlinux-ax161/

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
[nd: conflict in arch/Kconfig due to missing dc5723b02e523 ("kbuild: add
  support for Clang LTO") which landed in v5.12-rc1]
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
(cherry picked from commit ba64beb17493a4bfec563100c86a462a15926f24)
Bug: 210043760
Change-Id: I9bcc528adbb86fa902123611ce979af0dd455ad5
---
 Makefile                |  4 +-
 init/Kconfig            | 12 ++++++
 scripts/Kconfig.include |  6 +++
 scripts/as-version.sh   | 82 +++++++++++++++++++++++++++++++++++++++++
 scripts/dummy-tools/gcc |  6 +++
 5 files changed, 109 insertions(+), 1 deletion(-)
 create mode 100755 scripts/as-version.sh

diff --git a/Makefile b/Makefile
index 87390f4bc4b0b..f0c9c68a5cec5 100644
--- a/Makefile
+++ b/Makefile
@@ -584,7 +584,9 @@ endif
 ifneq ($(GCC_TOOLCHAIN),)
 CLANG_FLAGS	+= --gcc-toolchain=$(GCC_TOOLCHAIN)
 endif
-ifneq ($(LLVM_IAS),1)
+ifeq ($(LLVM_IAS),1)
+CLANG_FLAGS	+= -integrated-as
+else
 CLANG_FLAGS	+= -no-integrated-as
 endif
 CLANG_FLAGS	+= -Werror=unknown-warning-option
diff --git a/init/Kconfig b/init/Kconfig
index 2ee42bb12d433..bdf93d3bf9c3d 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -41,6 +41,18 @@ config CLANG_VERSION
 	default $(cc-version) if CC_IS_CLANG
 	default 0
 
+config AS_IS_GNU
+	def_bool $(success,test "$(as-name)" = GNU)
+
+config AS_IS_LLVM
+	def_bool $(success,test "$(as-name)" = LLVM)
+
+config AS_VERSION
+	int
+	# Use clang version if this is the integrated assembler
+	default CLANG_VERSION if AS_IS_LLVM
+	default $(as-version)
+
 config LD_IS_BFD
 	def_bool $(success,test "$(ld-name)" = BFD)
 
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 58fdb5308725c..0496efd6e1179 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -45,6 +45,12 @@ $(error-if,$(success,test -z "$(cc-info)"),Sorry$(comma) this compiler is not su
 cc-name := $(shell,set -- $(cc-info) && echo $1)
 cc-version := $(shell,set -- $(cc-info) && echo $2)
 
+# Get the assembler name, version, and error out if it is not supported.
+as-info := $(shell,$(srctree)/scripts/as-version.sh $(CC) $(CLANG_FLAGS))
+$(error-if,$(success,test -z "$(as-info)"),Sorry$(comma) this assembler is not supported.)
+as-name := $(shell,set -- $(as-info) && echo $1)
+as-version := $(shell,set -- $(as-info) && echo $2)
+
 # Get the linker name, version, and error out if it is not supported.
 ld-info := $(shell,$(srctree)/scripts/ld-version.sh $(LD))
 $(error-if,$(success,test -z "$(ld-info)"),Sorry$(comma) this linker is not supported.)
diff --git a/scripts/as-version.sh b/scripts/as-version.sh
new file mode 100755
index 0000000000000..8b9410e329dfd
--- /dev/null
+++ b/scripts/as-version.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Print the assembler name and its version in a 5 or 6-digit form.
+# Also, perform the minimum version check.
+# (If it is the integrated assembler, return 0 as the version, and
+# skip the version check.)
+
+set -e
+
+# Convert the version string x.y.z to a canonical 5 or 6-digit form.
+get_canonical_version()
+{
+	IFS=.
+	set -- $1
+
+	# If the 2nd or 3rd field is missing, fill it with a zero.
+	#
+	# The 4th field, if present, is ignored.
+	# This occurs in development snapshots as in 2.35.1.20201116
+	echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
+}
+
+# Clang fails to handle -Wa,--version unless -no-integrated-as is given.
+# We check -(f)integrated-as, expecting it is explicitly passed in for the
+# integrated assembler case.
+check_integrated_as()
+{
+	while [ $# -gt 0 ]; do
+		if [ "$1" = -integrated-as -o "$1" = -fintegrated-as ]; then
+			# For the intergrated assembler, we do not check the
+			# version here. It is the same as the clang version, and
+			# it has been already checked by scripts/cc-version.sh.
+			echo LLVM 0
+			exit 0
+		fi
+		shift
+	done
+}
+
+check_integrated_as "$@"
+
+orig_args="$@"
+
+# Get the first line of the --version output.
+IFS='
+'
+set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler /dev/null -o /dev/null 2>/dev/null)
+
+# Split the line on spaces.
+IFS=' '
+set -- $1
+
+min_tool_version=$(dirname $0)/min-tool-version.sh
+
+if [ "$1" = GNU -a "$2" = assembler ]; then
+	shift $(($# - 1))
+	version=$1
+	min_version=$($min_tool_version binutils)
+	name=GNU
+else
+	echo "$orig_args: unknown assembler invoked" >&2
+	exit 1
+fi
+
+# Some distributions append a package release number, as in 2.34-4.fc32
+# Trim the hyphen and any characters that follow.
+version=${version%-*}
+
+cversion=$(get_canonical_version $version)
+min_cversion=$(get_canonical_version $min_version)
+
+if [ "$cversion" -lt "$min_cversion" ]; then
+	echo >&2 "***"
+	echo >&2 "*** Assembler is too old."
+	echo >&2 "***   Your $name assembler version:    $version"
+	echo >&2 "***   Minimum $name assembler version: $min_version"
+	echo >&2 "***"
+	exit 1
+fi
+
+echo $name $cversion
diff --git a/scripts/dummy-tools/gcc b/scripts/dummy-tools/gcc
index 0d0589cf8184e..9f5e943e7491a 100755
--- a/scripts/dummy-tools/gcc
+++ b/scripts/dummy-tools/gcc
@@ -67,6 +67,12 @@ if arg_contain -E "$@"; then
 	fi
 fi
 
+# To set CONFIG_AS_IS_GNU
+if arg_contain -Wa,--version "$@"; then
+	echo "GNU assembler (scripts/dummy-tools) 2.50"
+	exit 0
+fi
+
 if arg_contain -S "$@"; then
 	# For scripts/gcc-x86-*-has-stack-protector.sh
 	if arg_contain -fstack-protector "$@"; then
-- 
GitLab


From 137e78322cb3c6c7b630c522bdf04b0db21f59bc Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Mon, 10 Jan 2022 19:38:26 -0800
Subject: [PATCH 2578/4878] ANDROID: kleaf: drop toolchain_version =
 CLANG_VERSION

This is the default now.

Test: TH
Bug: 212640658
Change-Id: I3fc1d7149f4e180ff1919339beb6432adf73dab3
Signed-off-by: Yifan Hong <elsk@google.com>
(cherry picked from commit 15cc1a6f991db139c980d3b3193b6b74752cb53a)
---
 BUILD.bazel | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/BUILD.bazel b/BUILD.bazel
index 67e5228d7732a..463a49d365792 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -18,6 +18,5 @@ package(
 )
 
 load("//build/kleaf:common_kernels.bzl", "define_common_kernels")
-load("@kernel_toolchain_info//:dict.bzl", "CLANG_VERSION")
 
-define_common_kernels(toolchain_version = CLANG_VERSION)
+define_common_kernels()
-- 
GitLab


From 99dd0843179ea54798666f899c05e4facf778cdc Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Fri, 7 Jan 2022 14:15:57 -0800
Subject: [PATCH 2579/4878] ANDROID: fuse-bpf: Check if mkdir dentry setup

Uses lookup_one_len if given dentry is still negative/unlocked after
mkdir is called

Bug: 202785178
Test: atest android.scopedstorage.cts.device.ScopedStorageDeviceTest#testCreateAndDeleteEmptyDir
Change-Id: Id5c7dfd303c242d6966fab82d96712d289676857
Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 fs/fuse/backing.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index b43e55d98800b..d4610ff7a9220 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1110,6 +1110,7 @@ int fuse_mkdir_backing(
 	struct inode *backing_inode = get_fuse_inode(dir)->backing_inode;
 	struct path backing_path = {};
 	struct inode *inode = NULL;
+	struct dentry *d;
 
 	//TODO Actually deal with changing the backing entry in mkdir
 	get_fuse_backing_path(entry, &backing_path);
@@ -1118,17 +1119,18 @@ int fuse_mkdir_backing(
 
 	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
 	err = vfs_mkdir(backing_inode, backing_path.dentry, fmi->mode & ~fmi->umask);
-	inode_unlock(backing_inode);
 	if (err)
 		goto out;
 	if (d_really_is_negative(backing_path.dentry) ||
 		unlikely(d_unhashed(backing_path.dentry))) {
-		err = -EINVAL;
-		/**
-		 * TODO: overlayfs responds to this situation with a
-		 * lookupOneLen. Should we do that too?
-		 */
-		goto out;
+		d = lookup_one_len(entry->d_name.name, backing_path.dentry->d_parent,
+				entry->d_name.len);
+		if (IS_ERR(d)) {
+			err = PTR_ERR(d);
+			goto out;
+		}
+		dput(backing_path.dentry);
+		backing_path.dentry = d;
 	}
 	inode = fuse_iget_backing(dir->i_sb, backing_inode);
 	if (IS_ERR(inode)) {
@@ -1137,6 +1139,7 @@ int fuse_mkdir_backing(
 	}
 	d_instantiate(entry, inode);
 out:
+	inode_unlock(backing_inode);
 	path_put(&backing_path);
 	return err;
 }
-- 
GitLab


From 34957d1e9236e27df4fc1e4cfbbaf271271f05ff Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Fri, 7 Jan 2022 20:36:53 +0000
Subject: [PATCH 2580/4878] ANDROID: fuse-bpf: Fix perms on readdir

Add checks for both fuse accesses and backing fs accesses

Bug: 202785178
Test: fuse_test passes, also atest ScopedStorageDeviceTest passes
Change-Id: Ida7d90e14ca36588a8cc19453e0d40b4f6f41aa9
Signed-off-by: Paul Lawrence <paullawrence@google.com>
---
 fs/fuse/backing.c                             | 24 ++++++++++
 fs/fuse/dir.c                                 |  4 +-
 .../selftests/filesystems/fuse/fuse_test.c    | 44 +++++++++++++++++++
 .../selftests/filesystems/fuse/test_bpf.c     | 10 +++++
 4 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index d4610ff7a9220..d201e59a70861 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -140,6 +140,8 @@ int fuse_open_backing(struct fuse_args *fa,
 	struct fuse_mount *fm = get_fuse_mount(inode);
 	const struct fuse_open_in *foi = fa->in_args[0].value;
 	struct fuse_file *ff;
+	int retval;
+	int mask;
 	struct fuse_dentry *fd = get_fuse_dentry(file->f_path.dentry);
 	struct file *backing_file;
 
@@ -148,9 +150,31 @@ int fuse_open_backing(struct fuse_args *fa,
 		return -ENOMEM;
 	file->private_data = ff;
 
+	switch (foi->flags & O_ACCMODE) {
+	case O_RDONLY:
+		mask = MAY_READ;
+		break;
+
+	case O_WRONLY:
+		mask = MAY_WRITE;
+		break;
+
+	case O_RDWR:
+		mask = MAY_READ | MAY_WRITE;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	retval = inode_permission(get_fuse_inode(inode)->backing_inode, mask);
+	if (retval)
+		return retval;
+
 	backing_file = dentry_open(&fd->backing_path,
 				   foi->flags,
 				   current_cred());
+
 	if (IS_ERR(backing_file)) {
 		fuse_file_free(ff);
 		file->private_data = NULL;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 4f72a9170da01..af9e69b7a6a3c 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1524,6 +1524,7 @@ static int fuse_permission(struct inode *inode, int mask)
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	bool refreshed = false;
 	int err = 0;
+	struct fuse_inode *fi = get_fuse_inode(inode);
 
 	if (fuse_is_bad(inode))
 		return -EIO;
@@ -1536,7 +1537,6 @@ static int fuse_permission(struct inode *inode, int mask)
 	 */
 	if (fc->default_permissions ||
 	    ((mask & MAY_EXEC) && S_ISREG(inode->i_mode))) {
-		struct fuse_inode *fi = get_fuse_inode(inode);
 		u32 perm_mask = STATX_MODE | STATX_UID | STATX_GID;
 
 		if (perm_mask & READ_ONCE(fi->inval_mask) ||
@@ -1576,6 +1576,8 @@ static int fuse_permission(struct inode *inode, int mask)
 			if (!err && !(inode->i_mode & S_IXUGO))
 				return -EACCES;
 		}
+	} else if (!(mask & MAY_NOT_BLOCK) && fi->backing_inode) {
+		err = fuse_access(inode, mask);
 	}
 	return err;
 }
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index eaca579860a22..3f1e32479152d 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -14,8 +14,10 @@
 
 #include <sys/mman.h>
 #include <sys/mount.h>
+#include <sys/syscall.h>
 #include <sys/wait.h>
 
+#include <linux/capability.h>
 #include <linux/random.h>
 
 #include <include/uapi/linux/fuse.h>
@@ -1324,6 +1326,47 @@ out:
 	return result;
 }
 
+static int readdir_perms_test(const char *mount_dir)
+{
+	int result = TEST_FAILURE;
+	struct __user_cap_header_struct uchs = { _LINUX_CAPABILITY_VERSION_3 };
+	struct __user_cap_data_struct ucds[2];
+	int src_fd = -1;
+	int fuse_dev = -1;
+	DIR *dir = NULL;
+
+	/* Must remove capabilities for this test. */
+	TESTSYSCALL(syscall(SYS_capget, &uchs, ucds));
+	ucds[0].effective &= ~(1 << CAP_DAC_OVERRIDE | 1 << CAP_DAC_READ_SEARCH);
+	TESTSYSCALL(syscall(SYS_capset, &uchs, ucds));
+
+	/* This is what we are testing in fuseland. First test without fuse, */
+	TESTSYSCALL(mkdir("test", 0111));
+	TEST(dir = opendir("test"), dir == NULL);
+	closedir(dir);
+	dir = NULL;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(mount_fuse(mount_dir, -1, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_mkdir(s_path(s(mount_dir), s("test")), 0111));
+	TEST(dir = s_opendir(s_path(s(mount_dir), s("test"))), dir == NULL);
+
+	result = TEST_SUCCESS;
+out:
+	ucds[0].effective |= 1 << CAP_DAC_OVERRIDE | 1 << CAP_DAC_READ_SEARCH;
+	syscall(SYS_capset, &uchs, ucds);
+
+	closedir(dir);
+	s_rmdir(s_path(s(mount_dir), s("test")));
+	umount(mount_dir);
+	close(fuse_dev);
+	close(src_fd);
+	rmdir("test");
+	return result;
+}
+
 static int parse_options(int argc, char *const *argv)
 {
 	signed char c;
@@ -1424,6 +1467,7 @@ int main(int argc, char *argv[])
 		MAKE_TEST(bpf_test_alter_errcode_bpf),
 		MAKE_TEST(bpf_test_alter_errcode_userspace),
 		MAKE_TEST(mmap_test),
+		MAKE_TEST(readdir_perms_test),
 	};
 #undef MAKE_TEST
 
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
index a5e60eec79bab..29ef4e289b607 100644
--- a/tools/testing/selftests/filesystems/fuse/test_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -98,6 +98,11 @@ int trace_test(struct fuse_args *fa)
 		return 0;
 	}
 
+	case FUSE_ACCESS | FUSE_PREFILTER: {
+		bpf_printk("Access: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+	}
+
 	case FUSE_CREATE | FUSE_PREFILTER:
 		bpf_printk("Create: %d", fa->nodeid);
 		return FUSE_BPF_BACKING;
@@ -347,6 +352,11 @@ int trace_hidden(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_ACCESS | FUSE_PREFILTER: {
+		bpf_printk("Access: %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+	}
+
 	case FUSE_CREATE | FUSE_PREFILTER:
 		bpf_printk("Create: %d", fa->nodeid);
 		return FUSE_BPF_BACKING;
-- 
GitLab


From 384111e123675a39f461a0004e00e14f8c81918d Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 3 Sep 2021 10:38:11 +0800
Subject: [PATCH 2581/4878] f2fs: quota: fix potential deadlock

commit a5c0042200b28fff3bde6fa128ddeaef97990f8d upstream.

As Yi Zhuang reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=214299

There is potential deadlock during quota data flush as below:

Thread A:			Thread B:
f2fs_dquot_acquire
down_read(&sbi->quota_sem)
				f2fs_write_checkpoint
				block_operations
				f2fs_look_all
				down_write(&sbi->cp_rwsem)
f2fs_quota_write
f2fs_write_begin
__do_map_lock
f2fs_lock_op
down_read(&sbi->cp_rwsem)
				__need_flush_qutoa
				down_write(&sbi->quota_sem)

This patch changes block_operations() to use trylock, if it fails,
it means there is potential quota data updater, in this condition,
let's flush quota data first and then trylock again to check dirty
status of quota data.

The side effect is: in heavy race condition (e.g. multi quota data
upaters vs quota data flusher), it may decrease the probability of
synchronizing quota data successfully in checkpoint() due to limited
retry time of quota flush.

Reported-by: Yi Zhuang <zhuangyi1@huawei.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/f2fs/checkpoint.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index b39bf416d5114..9bcd77db980df 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1147,7 +1147,8 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	if (!is_journalled_quota(sbi))
 		return false;
 
-	down_write(&sbi->quota_sem);
+	if (!down_write_trylock(&sbi->quota_sem))
+		return true;
 	if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) {
 		ret = false;
 	} else if (is_sbi_flag_set(sbi, SBI_QUOTA_NEED_REPAIR)) {
-- 
GitLab


From c1e2da4b3f72a0dc312f6b35ec3d3a39777f54e2 Mon Sep 17 00:00:00 2001
From: Shuah Khan <skhan@linuxfoundation.org>
Date: Thu, 21 Oct 2021 15:33:33 -0600
Subject: [PATCH 2582/4878] selftests: x86: fix [-Wstringop-overread] warn in
 test_process_vm_readv()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit dd40f44eabe1e122c6852fabb298aac05b083fce upstream.

Fix the following [-Wstringop-overread] by passing in the variable
instead of the value.

test_vsyscall.c: In function ‘test_process_vm_readv’:
test_vsyscall.c:500:22: warning: ‘__builtin_memcmp_eq’ specified bound 4096 exceeds source size 0 [-Wstringop-overread]
  500 |                 if (!memcmp(buf, (const void *)0xffffffffff600000, 4096)) {
      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/x86/test_vsyscall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/x86/test_vsyscall.c b/tools/testing/selftests/x86/test_vsyscall.c
index 65c141ebfbbde..5b45e6986aeab 100644
--- a/tools/testing/selftests/x86/test_vsyscall.c
+++ b/tools/testing/selftests/x86/test_vsyscall.c
@@ -497,7 +497,7 @@ static int test_process_vm_readv(void)
 	}
 
 	if (vsyscall_map_r) {
-		if (!memcmp(buf, (const void *)0xffffffffff600000, 4096)) {
+		if (!memcmp(buf, remote.iov_base, sizeof(buf))) {
 			printf("[OK]\tIt worked and read correct data\n");
 		} else {
 			printf("[FAIL]\tIt worked but returned incorrect data\n");
-- 
GitLab


From 760c6a62550660f500bc48fc78f94a2a483151da Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Thu, 23 Dec 2021 16:04:38 +0530
Subject: [PATCH 2583/4878] tracing: Fix check for trace_percpu_buffer validity
 in get_trace_buf()

commit 823e670f7ed616d0ce993075c8afe0217885f79d upstream.

With the new osnoise tracer, we are seeing the below splat:
    Kernel attempted to read user page (c7d880000) - exploit attempt? (uid: 0)
    BUG: Unable to handle kernel data access on read at 0xc7d880000
    Faulting instruction address: 0xc0000000002ffa10
    Oops: Kernel access of bad area, sig: 11 [#1]
    LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
    ...
    NIP [c0000000002ffa10] __trace_array_vprintk.part.0+0x70/0x2f0
    LR [c0000000002ff9fc] __trace_array_vprintk.part.0+0x5c/0x2f0
    Call Trace:
    [c0000008bdd73b80] [c0000000001c49cc] put_prev_task_fair+0x3c/0x60 (unreliable)
    [c0000008bdd73be0] [c000000000301430] trace_array_printk_buf+0x70/0x90
    [c0000008bdd73c00] [c0000000003178b0] trace_sched_switch_callback+0x250/0x290
    [c0000008bdd73c90] [c000000000e70d60] __schedule+0x410/0x710
    [c0000008bdd73d40] [c000000000e710c0] schedule+0x60/0x130
    [c0000008bdd73d70] [c000000000030614] interrupt_exit_user_prepare_main+0x264/0x270
    [c0000008bdd73de0] [c000000000030a70] syscall_exit_prepare+0x150/0x180
    [c0000008bdd73e10] [c00000000000c174] system_call_vectored_common+0xf4/0x278

osnoise tracer on ppc64le is triggering osnoise_taint() for negative
duration in get_int_safe_duration() called from
trace_sched_switch_callback()->thread_exit().

The problem though is that the check for a valid trace_percpu_buffer is
incorrect in get_trace_buf(). The check is being done after calculating
the pointer for the current cpu, rather than on the main percpu pointer.
Fix the check to be against trace_percpu_buffer.

Link: https://lkml.kernel.org/r/a920e4272e0b0635cf20c444707cbce1b2c8973d.1640255304.git.naveen.n.rao@linux.vnet.ibm.com

Cc: stable@vger.kernel.org
Fixes: e2ace001176dc9 ("tracing: Choose static tp_printk buffer by explicit nesting count")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index e4f154119e52c..28b61db77baad 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3144,7 +3144,7 @@ static char *get_trace_buf(void)
 {
 	struct trace_buffer_struct *buffer = this_cpu_ptr(trace_percpu_buffer);
 
-	if (!buffer || buffer->nesting >= 4)
+	if (!trace_percpu_buffer || buffer->nesting >= 4)
 		return NULL;
 
 	buffer->nesting++;
-- 
GitLab


From 7db1e245cb71885753bde56555c919a7b3170655 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Thu, 23 Dec 2021 16:04:39 +0530
Subject: [PATCH 2584/4878] tracing: Tag trace_percpu_buffer as a percpu
 pointer

commit f28439db470cca8b6b082239314e9fd10bd39034 upstream.

Tag trace_percpu_buffer as a percpu pointer to resolve warnings
reported by sparse:
  /linux/kernel/trace/trace.c:3218:46: warning: incorrect type in initializer (different address spaces)
  /linux/kernel/trace/trace.c:3218:46:    expected void const [noderef] __percpu *__vpp_verify
  /linux/kernel/trace/trace.c:3218:46:    got struct trace_buffer_struct *
  /linux/kernel/trace/trace.c:3234:9: warning: incorrect type in initializer (different address spaces)
  /linux/kernel/trace/trace.c:3234:9:    expected void const [noderef] __percpu *__vpp_verify
  /linux/kernel/trace/trace.c:3234:9:    got int *

Link: https://lkml.kernel.org/r/ebabd3f23101d89cb75671b68b6f819f5edc830b.1640255304.git.naveen.n.rao@linux.vnet.ibm.com

Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 07d777fe8c398 ("tracing: Add percpu buffers for trace_printk()")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 28b61db77baad..cd2d094b9f820 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3134,7 +3134,7 @@ struct trace_buffer_struct {
 	char buffer[4][TRACE_BUF_SIZE];
 };
 
-static struct trace_buffer_struct *trace_percpu_buffer;
+static struct trace_buffer_struct __percpu *trace_percpu_buffer;
 
 /*
  * Thise allows for lockless recording.  If we're nested too deeply, then
@@ -3163,7 +3163,7 @@ static void put_trace_buf(void)
 
 static int alloc_percpu_trace_buffer(void)
 {
-	struct trace_buffer_struct *buffers;
+	struct trace_buffer_struct __percpu *buffers;
 
 	if (trace_percpu_buffer)
 		return 0;
-- 
GitLab


From 7f13d14e563c130991d0452508ecba4dadd9c118 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Tue, 4 Jan 2022 21:28:06 +0300
Subject: [PATCH 2585/4878] ieee802154: atusb: fix uninit value in
 atusb_set_extended_addr

commit 754e4382354f7908923a1949d8dc8d05f82f09cb upstream.

Alexander reported a use of uninitialized value in
atusb_set_extended_addr(), that is caused by reading 0 bytes via
usb_control_msg().

Fix it by validating if the number of bytes transferred is actually
correct, since usb_control_msg() may read less bytes, than was requested
by caller.

Fail log:

BUG: KASAN: uninit-cmp in ieee802154_is_valid_extended_unicast_addr include/linux/ieee802154.h:310 [inline]
BUG: KASAN: uninit-cmp in atusb_set_extended_addr drivers/net/ieee802154/atusb.c:1000 [inline]
BUG: KASAN: uninit-cmp in atusb_probe.cold+0x29f/0x14db drivers/net/ieee802154/atusb.c:1056
Uninit value used in comparison: 311daa649a2003bd stack handle: 000000009a2003bd
 ieee802154_is_valid_extended_unicast_addr include/linux/ieee802154.h:310 [inline]
 atusb_set_extended_addr drivers/net/ieee802154/atusb.c:1000 [inline]
 atusb_probe.cold+0x29f/0x14db drivers/net/ieee802154/atusb.c:1056
 usb_probe_interface+0x314/0x7f0 drivers/usb/core/driver.c:396

Fixes: 7490b008d123 ("ieee802154: add support for atusb transceiver")
Reported-by: Alexander Potapenko <glider@google.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20220104182806.7188-1-paskripkin@gmail.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ieee802154/atusb.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
index 23ee0b14cbfa1..2f5e7b31032aa 100644
--- a/drivers/net/ieee802154/atusb.c
+++ b/drivers/net/ieee802154/atusb.c
@@ -93,7 +93,9 @@ static int atusb_control_msg(struct atusb *atusb, unsigned int pipe,
 
 	ret = usb_control_msg(usb_dev, pipe, request, requesttype,
 			      value, index, data, size, timeout);
-	if (ret < 0) {
+	if (ret < size) {
+		ret = ret < 0 ? ret : -ENODATA;
+
 		atusb->err = ret;
 		dev_err(&usb_dev->dev,
 			"%s: req 0x%02x val 0x%x idx 0x%x, error %d\n",
@@ -861,9 +863,9 @@ static int atusb_get_and_show_build(struct atusb *atusb)
 	if (!build)
 		return -ENOMEM;
 
-	ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
-				ATUSB_BUILD, ATUSB_REQ_FROM_DEV, 0, 0,
-				build, ATUSB_BUILD_SIZE, 1000);
+	/* We cannot call atusb_control_msg() here, since this request may read various length data */
+	ret = usb_control_msg(atusb->usb_dev, usb_rcvctrlpipe(usb_dev, 0), ATUSB_BUILD,
+			      ATUSB_REQ_FROM_DEV, 0, 0, build, ATUSB_BUILD_SIZE, 1000);
 	if (ret >= 0) {
 		build[ret] = 0;
 		dev_info(&usb_dev->dev, "Firmware: build %s\n", build);
-- 
GitLab


From 396e3016905de566de42af304b2d97b76138b08b Mon Sep 17 00:00:00 2001
From: Mateusz Palczewski <mateusz.palczewski@intel.com>
Date: Wed, 3 Mar 2021 11:45:33 +0000
Subject: [PATCH 2586/4878] i40e: Fix to not show opcode msg on unsuccessful VF
 MAC change

commit 01cbf50877e602e2376af89e4a51c30bc574c618 upstream.

Hide i40e opcode information sent during response to VF in case when
untrusted VF tried to change MAC on the VF interface.

This is implemented by adding an additional parameter 'hide' to the
response sent to VF function that hides the display of error
information, but forwards the error code to VF.

Previously it was not possible to send response with some error code
to VF without displaying opcode information.

Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Reviewed-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 40 +++++++++++++++----
 1 file changed, 32 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 5a58edba4adfc..65c4c4fd359fa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1824,17 +1824,19 @@ sriov_configure_out:
 /***********************virtual channel routines******************/
 
 /**
- * i40e_vc_send_msg_to_vf
+ * i40e_vc_send_msg_to_vf_ex
  * @vf: pointer to the VF info
  * @v_opcode: virtual channel opcode
  * @v_retval: virtual channel return value
  * @msg: pointer to the msg buffer
  * @msglen: msg length
+ * @is_quiet: true for not printing unsuccessful return values, false otherwise
  *
  * send msg to VF
  **/
-static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
-				  u32 v_retval, u8 *msg, u16 msglen)
+static int i40e_vc_send_msg_to_vf_ex(struct i40e_vf *vf, u32 v_opcode,
+				     u32 v_retval, u8 *msg, u16 msglen,
+				     bool is_quiet)
 {
 	struct i40e_pf *pf;
 	struct i40e_hw *hw;
@@ -1850,7 +1852,7 @@ static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
 	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
 
 	/* single place to detect unsuccessful return values */
-	if (v_retval) {
+	if (v_retval && !is_quiet) {
 		vf->num_invalid_msgs++;
 		dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
 			 vf->vf_id, v_opcode, v_retval);
@@ -1880,6 +1882,23 @@ static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
 	return 0;
 }
 
+/**
+ * i40e_vc_send_msg_to_vf
+ * @vf: pointer to the VF info
+ * @v_opcode: virtual channel opcode
+ * @v_retval: virtual channel return value
+ * @msg: pointer to the msg buffer
+ * @msglen: msg length
+ *
+ * send msg to VF
+ **/
+static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
+				  u32 v_retval, u8 *msg, u16 msglen)
+{
+	return i40e_vc_send_msg_to_vf_ex(vf, v_opcode, v_retval,
+					 msg, msglen, false);
+}
+
 /**
  * i40e_vc_send_resp_to_vf
  * @vf: pointer to the VF info
@@ -2641,6 +2660,7 @@ error_param:
  * i40e_check_vf_permission
  * @vf: pointer to the VF info
  * @al: MAC address list from virtchnl
+ * @is_quiet: set true for printing msg without opcode info, false otherwise
  *
  * Check that the given list of MAC addresses is allowed. Will return -EPERM
  * if any address in the list is not valid. Checks the following conditions:
@@ -2655,13 +2675,15 @@ error_param:
  * addresses might not be accurate.
  **/
 static inline int i40e_check_vf_permission(struct i40e_vf *vf,
-					   struct virtchnl_ether_addr_list *al)
+					   struct virtchnl_ether_addr_list *al,
+					   bool *is_quiet)
 {
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
 	int mac2add_cnt = 0;
 	int i;
 
+	*is_quiet = false;
 	for (i = 0; i < al->num_elements; i++) {
 		struct i40e_mac_filter *f;
 		u8 *addr = al->list[i].addr;
@@ -2685,6 +2707,7 @@ static inline int i40e_check_vf_permission(struct i40e_vf *vf,
 		    !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
 			dev_err(&pf->pdev->dev,
 				"VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
+			*is_quiet = true;
 			return -EPERM;
 		}
 
@@ -2721,6 +2744,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 	    (struct virtchnl_ether_addr_list *)msg;
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = NULL;
+	bool is_quiet = false;
 	i40e_status ret = 0;
 	int i;
 
@@ -2737,7 +2761,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 	 */
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
 
-	ret = i40e_check_vf_permission(vf, al);
+	ret = i40e_check_vf_permission(vf, al, &is_quiet);
 	if (ret) {
 		spin_unlock_bh(&vsi->mac_filter_hash_lock);
 		goto error_param;
@@ -2775,8 +2799,8 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 
 error_param:
 	/* send the response to the VF */
-	return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
-				       ret);
+	return i40e_vc_send_msg_to_vf_ex(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
+				       ret, NULL, 0, is_quiet);
 }
 
 /**
-- 
GitLab


From 3ca132e6b06505e554ccf05282975c71a3768834 Mon Sep 17 00:00:00 2001
From: Karen Sornek <karen.sornek@intel.com>
Date: Wed, 1 Sep 2021 09:21:46 +0200
Subject: [PATCH 2587/4878] iavf: Fix limit of total number of queues to active
 queues of VF

commit b712941c8085e638bb92456e866ed3de4404e3d5 upstream.

In the absence of this validation, if the user requests to
configure queues more than the enabled queues, it results in
sending the requested number of queues to the kernel stack
(due to the asynchronous nature of VF response), in which
case the stack might pick a queue to transmit that is not
enabled and result in Tx hang. Fix this bug by
limiting the total number of queues allocated for VF to
active queues of VF.

Fixes: d5b33d024496 ("i40evf: add ndo_setup_tc callback to i40evf")
Signed-off-by: Ashwin Vijayavel <ashwin.vijayavel@intel.com>
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 7aa49d4eaa87c..de7794ebc7e73 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2598,8 +2598,11 @@ static int iavf_validate_ch_config(struct iavf_adapter *adapter,
 		total_max_rate += tx_rate;
 		num_qps += mqprio_qopt->qopt.count[i];
 	}
-	if (num_qps > IAVF_MAX_REQ_QUEUES)
+	if (num_qps > adapter->num_active_queues) {
+		dev_err(&adapter->pdev->dev,
+			"Cannot support requested number of queues\n");
 		return -EINVAL;
+	}
 
 	ret = iavf_validate_tx_bandwidth(adapter, total_max_rate);
 	return ret;
-- 
GitLab


From beeb0fdedae802a7fb606e955a81a56a2e3bbac1 Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Tue, 4 Jan 2022 14:21:52 +0200
Subject: [PATCH 2588/4878] RDMA/core: Don't infoleak GRH fields

commit b35a0f4dd544eaa6162b6d2f13a2557a121ae5fd upstream.

If dst->is_global field is not set, the GRH fields are not cleared
and the following infoleak is reported.

=====================================================
BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_user+0x1c9/0x270 lib/usercopy.c:33
 instrument_copy_to_user include/linux/instrumented.h:121 [inline]
 _copy_to_user+0x1c9/0x270 lib/usercopy.c:33
 copy_to_user include/linux/uaccess.h:209 [inline]
 ucma_init_qp_attr+0x8c7/0xb10 drivers/infiniband/core/ucma.c:1242
 ucma_write+0x637/0x6c0 drivers/infiniband/core/ucma.c:1732
 vfs_write+0x8ce/0x2030 fs/read_write.c:588
 ksys_write+0x28b/0x510 fs/read_write.c:643
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __ia32_sys_write+0xdb/0x120 fs/read_write.c:652
 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline]
 __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180
 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Local variable resp created at:
 ucma_init_qp_attr+0xa4/0xb10 drivers/infiniband/core/ucma.c:1214
 ucma_write+0x637/0x6c0 drivers/infiniband/core/ucma.c:1732

Bytes 40-59 of 144 are uninitialized
Memory access of size 144 starts at ffff888167523b00
Data copied to user address 0000000020000100

CPU: 1 PID: 25910 Comm: syz-executor.1 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================

Fixes: 4ba66093bdc6 ("IB/core: Check for global flag when using ah_attr")
Link: https://lore.kernel.org/r/0e9dd51f93410b7b2f4f5562f52befc878b71afa.1641298868.git.leonro@nvidia.com
Reported-by: syzbot+6d532fa8f9463da290bc@syzkaller.appspotmail.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/uverbs_marshall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/uverbs_marshall.c b/drivers/infiniband/core/uverbs_marshall.c
index b8d715c68ca44..11a0806469162 100644
--- a/drivers/infiniband/core/uverbs_marshall.c
+++ b/drivers/infiniband/core/uverbs_marshall.c
@@ -66,7 +66,7 @@ void ib_copy_ah_attr_to_user(struct ib_device *device,
 	struct rdma_ah_attr *src = ah_attr;
 	struct rdma_ah_attr conv_ah;
 
-	memset(&dst->grh.reserved, 0, sizeof(dst->grh.reserved));
+	memset(&dst->grh, 0, sizeof(dst->grh));
 
 	if ((ah_attr->type == RDMA_AH_ATTR_TYPE_OPA) &&
 	    (rdma_ah_get_dlid(ah_attr) > be16_to_cpu(IB_LID_PERMISSIVE)) &&
-- 
GitLab


From a7c2cae997db6d39a858f42d898d866058a7e035 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 4 Jan 2022 10:21:26 +0100
Subject: [PATCH 2589/4878] netrom: fix copying in user data in nr_setsockopt

commit 3087a6f36ee028ec095c04a8531d7d33899b7fed upstream.

This code used to copy in an unsigned long worth of data before
the sockptr_t conversion, so restore that.

Fixes: a7b75c5a8c41 ("net: pass a sockptr_t into ->setsockopt")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netrom/af_netrom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 6d16e1ab1a8ab..eef0e3f2f25b0 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -306,7 +306,7 @@ static int nr_setsockopt(struct socket *sock, int level, int optname,
 	if (optlen < sizeof(unsigned int))
 		return -EINVAL;
 
-	if (copy_from_sockptr(&opt, optval, sizeof(unsigned int)))
+	if (copy_from_sockptr(&opt, optval, sizeof(unsigned long)))
 		return -EFAULT;
 
 	switch (optname) {
-- 
GitLab


From 16e5cad6eca1e506c38c39dc256298643fa1852a Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Fri, 31 Dec 2021 17:33:15 +0800
Subject: [PATCH 2590/4878] RDMA/uverbs: Check for null return of kmalloc_array

commit 7694a7de22c53a312ea98960fcafc6ec62046531 upstream.

Because of the possible failure of the allocation, data might be NULL
pointer and will cause the dereference of the NULL pointer later.
Therefore, it might be better to check it and return -ENOMEM.

Fixes: 6884c6c4bd09 ("RDMA/verbs: Store the write/write_ex uapi entry points in the uverbs_api")
Link: https://lore.kernel.org/r/20211231093315.1917667-1-jiasheng@iscas.ac.cn
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/uverbs_uapi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/core/uverbs_uapi.c b/drivers/infiniband/core/uverbs_uapi.c
index 5addc8fae3f3b..91dbcb3c252d6 100644
--- a/drivers/infiniband/core/uverbs_uapi.c
+++ b/drivers/infiniband/core/uverbs_uapi.c
@@ -450,6 +450,9 @@ static int uapi_finalize(struct uverbs_api *uapi)
 	uapi->num_write_ex = max_write_ex + 1;
 	data = kmalloc_array(uapi->num_write + uapi->num_write_ex,
 			     sizeof(*uapi->write_methods), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
 	for (i = 0; i != uapi->num_write + uapi->num_write_ex; i++)
 		data[i] = &uapi->notsupp_method;
 	uapi->write_methods = data;
-- 
GitLab


From 2b3f34da0d79a5d2e833a2aef472becb9930e27e Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Thu, 23 Dec 2021 08:28:48 -0800
Subject: [PATCH 2591/4878] mac80211: initialize variable
 have_higher_than_11mbit

commit 68a18ad71378a56858141c4449e02a30c829763e upstream.

Clang static analysis reports this warnings

mlme.c:5332:7: warning: Branch condition evaluates to a
  garbage value
    have_higher_than_11mbit)
    ^~~~~~~~~~~~~~~~~~~~~~~

have_higher_than_11mbit is only set to true some of the time in
ieee80211_get_rates() but is checked all of the time.  So
have_higher_than_11mbit needs to be initialized to false.

Fixes: 5d6a1b069b7f ("mac80211: set basic rates earlier")
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211223162848.3243702-1-trix@redhat.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/mlme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7bd42827540ae..778bf262418b5 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -5194,7 +5194,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
 	 */
 	if (new_sta) {
 		u32 rates = 0, basic_rates = 0;
-		bool have_higher_than_11mbit;
+		bool have_higher_than_11mbit = false;
 		int min_rate = INT_MAX, min_rate_index = -1;
 		const struct cfg80211_bss_ies *ies;
 		int shift = ieee80211_vif_get_shift(&sdata->vif);
-- 
GitLab


From f7edb6b9438b98549e72652f7d505c77ccf593dc Mon Sep 17 00:00:00 2001
From: Martin Habets <habetsm.xilinx@gmail.com>
Date: Sun, 2 Jan 2022 08:41:22 +0000
Subject: [PATCH 2592/4878] sfc: The RX page_ring is optional

commit 1d5a474240407c38ca8c7484a656ee39f585399c upstream.

The RX page_ring is an optional feature that improves
performance. When allocation fails the driver can still
function, but possibly with a lower bandwidth.
Guard against dereferencing a NULL page_ring.

Fixes: 2768935a4660 ("sfc: reuse pages to avoid DMA mapping/unmapping costs")
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Reported-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/164111288276.5798.10330502993729113868.stgit@palantir17.mph.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/sfc/falcon/rx.c | 5 +++++
 drivers/net/ethernet/sfc/rx_common.c | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/sfc/falcon/rx.c b/drivers/net/ethernet/sfc/falcon/rx.c
index 11a6aee852e92..0c6cc21913693 100644
--- a/drivers/net/ethernet/sfc/falcon/rx.c
+++ b/drivers/net/ethernet/sfc/falcon/rx.c
@@ -110,6 +110,8 @@ static struct page *ef4_reuse_page(struct ef4_rx_queue *rx_queue)
 	struct ef4_rx_page_state *state;
 	unsigned index;
 
+	if (unlikely(!rx_queue->page_ring))
+		return NULL;
 	index = rx_queue->page_remove & rx_queue->page_ptr_mask;
 	page = rx_queue->page_ring[index];
 	if (page == NULL)
@@ -293,6 +295,9 @@ static void ef4_recycle_rx_pages(struct ef4_channel *channel,
 {
 	struct ef4_rx_queue *rx_queue = ef4_channel_get_rx_queue(channel);
 
+	if (unlikely(!rx_queue->page_ring))
+		return;
+
 	do {
 		ef4_recycle_rx_page(channel, rx_buf);
 		rx_buf = ef4_rx_buf_next(rx_queue, rx_buf);
diff --git a/drivers/net/ethernet/sfc/rx_common.c b/drivers/net/ethernet/sfc/rx_common.c
index 8834bcb12fa97..e423b17e2a148 100644
--- a/drivers/net/ethernet/sfc/rx_common.c
+++ b/drivers/net/ethernet/sfc/rx_common.c
@@ -45,6 +45,8 @@ static struct page *efx_reuse_page(struct efx_rx_queue *rx_queue)
 	unsigned int index;
 	struct page *page;
 
+	if (unlikely(!rx_queue->page_ring))
+		return NULL;
 	index = rx_queue->page_remove & rx_queue->page_ptr_mask;
 	page = rx_queue->page_ring[index];
 	if (page == NULL)
@@ -114,6 +116,9 @@ void efx_recycle_rx_pages(struct efx_channel *channel,
 {
 	struct efx_rx_queue *rx_queue = efx_channel_get_rx_queue(channel);
 
+	if (unlikely(!rx_queue->page_ring))
+		return;
+
 	do {
 		efx_recycle_rx_page(channel, rx_buf);
 		rx_buf = efx_rx_buf_next(rx_queue, rx_buf);
-- 
GitLab


From 32845aa6020347fcae8d5e25548ecaef1f0c3e8a Mon Sep 17 00:00:00 2001
From: Di Zhu <zhudi2@huawei.com>
Date: Mon, 29 Nov 2021 19:52:01 +0600
Subject: [PATCH 2593/4878] i40e: fix use-after-free in
 i40e_sync_filters_subtask()

commit 3116f59c12bd24c513194cd3acb3ec1f7d468954 upstream.

Using ifconfig command to delete the ipv6 address will cause
the i40e network card driver to delete its internal mac_filter and
i40e_service_task kernel thread will concurrently access the mac_filter.
These two processes are not protected by lock
so causing the following use-after-free problems.

 print_address_description+0x70/0x360
 ? vprintk_func+0x5e/0xf0
 kasan_report+0x1b2/0x330
 i40e_sync_vsi_filters+0x4f0/0x1850 [i40e]
 i40e_sync_filters_subtask+0xe3/0x130 [i40e]
 i40e_service_task+0x195/0x24c0 [i40e]
 process_one_work+0x3f5/0x7d0
 worker_thread+0x61/0x6c0
 ? process_one_work+0x7d0/0x7d0
 kthread+0x1c3/0x1f0
 ? kthread_park+0xc0/0xc0
 ret_from_fork+0x35/0x40

Allocated by task 2279810:
 kasan_kmalloc+0xa0/0xd0
 kmem_cache_alloc_trace+0xf3/0x1e0
 i40e_add_filter+0x127/0x2b0 [i40e]
 i40e_add_mac_filter+0x156/0x190 [i40e]
 i40e_addr_sync+0x2d/0x40 [i40e]
 __hw_addr_sync_dev+0x154/0x210
 i40e_set_rx_mode+0x6d/0xf0 [i40e]
 __dev_set_rx_mode+0xfb/0x1f0
 __dev_mc_add+0x6c/0x90
 igmp6_group_added+0x214/0x230
 __ipv6_dev_mc_inc+0x338/0x4f0
 addrconf_join_solict.part.7+0xa2/0xd0
 addrconf_dad_work+0x500/0x980
 process_one_work+0x3f5/0x7d0
 worker_thread+0x61/0x6c0
 kthread+0x1c3/0x1f0
 ret_from_fork+0x35/0x40

Freed by task 2547073:
 __kasan_slab_free+0x130/0x180
 kfree+0x90/0x1b0
 __i40e_del_filter+0xa3/0xf0 [i40e]
 i40e_del_mac_filter+0xf3/0x130 [i40e]
 i40e_addr_unsync+0x85/0xa0 [i40e]
 __hw_addr_sync_dev+0x9d/0x210
 i40e_set_rx_mode+0x6d/0xf0 [i40e]
 __dev_set_rx_mode+0xfb/0x1f0
 __dev_mc_del+0x69/0x80
 igmp6_group_dropped+0x279/0x510
 __ipv6_dev_mc_dec+0x174/0x220
 addrconf_leave_solict.part.8+0xa2/0xd0
 __ipv6_ifa_notify+0x4cd/0x570
 ipv6_ifa_notify+0x58/0x80
 ipv6_del_addr+0x259/0x4a0
 inet6_addr_del+0x188/0x260
 addrconf_del_ifaddr+0xcc/0x130
 inet6_ioctl+0x152/0x190
 sock_do_ioctl+0xd8/0x2b0
 sock_ioctl+0x2e5/0x4c0
 do_vfs_ioctl+0x14e/0xa80
 ksys_ioctl+0x7c/0xa0
 __x64_sys_ioctl+0x42/0x50
 do_syscall_64+0x98/0x2c0
 entry_SYSCALL_64_after_hwframe+0x65/0xca

Fixes: 41c445ff0f48 ("i40e: main driver core")
Signed-off-by: Di Zhu <zhudi2@huawei.com>
Signed-off-by: Rui Zhang <zhangrui182@huawei.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 24 +++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 583eae71cda4b..cb8c94f91d006 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -98,6 +98,24 @@ MODULE_LICENSE("GPL v2");
 
 static struct workqueue_struct *i40e_wq;
 
+static void netdev_hw_addr_refcnt(struct i40e_mac_filter *f,
+				  struct net_device *netdev, int delta)
+{
+	struct netdev_hw_addr *ha;
+
+	if (!f || !netdev)
+		return;
+
+	netdev_for_each_mc_addr(ha, netdev) {
+		if (ether_addr_equal(ha->addr, f->macaddr)) {
+			ha->refcount += delta;
+			if (ha->refcount <= 0)
+				ha->refcount = 1;
+			break;
+		}
+	}
+}
+
 /**
  * i40e_allocate_dma_mem_d - OS specific memory alloc for shared code
  * @hw:   pointer to the HW structure
@@ -2035,6 +2053,7 @@ static void i40e_undo_add_filter_entries(struct i40e_vsi *vsi,
 	hlist_for_each_entry_safe(new, h, from, hlist) {
 		/* We can simply free the wrapper structure */
 		hlist_del(&new->hlist);
+		netdev_hw_addr_refcnt(new->f, vsi->netdev, -1);
 		kfree(new);
 	}
 }
@@ -2382,6 +2401,10 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 						       &tmp_add_list,
 						       &tmp_del_list,
 						       vlan_filters);
+
+		hlist_for_each_entry(new, &tmp_add_list, hlist)
+			netdev_hw_addr_refcnt(new->f, vsi->netdev, 1);
+
 		if (retval)
 			goto err_no_memory_locked;
 
@@ -2514,6 +2537,7 @@ int i40e_sync_vsi_filters(struct i40e_vsi *vsi)
 			if (new->f->state == I40E_FILTER_NEW)
 				new->f->state = new->state;
 			hlist_del(&new->hlist);
+			netdev_hw_addr_refcnt(new->f, vsi->netdev, -1);
 			kfree(new);
 		}
 		spin_unlock_bh(&vsi->mac_filter_hash_lock);
-- 
GitLab


From d0ad64438fb5019947988bbf9b4af5275f4596a0 Mon Sep 17 00:00:00 2001
From: Mateusz Palczewski <mateusz.palczewski@intel.com>
Date: Thu, 9 Dec 2021 11:04:35 +0100
Subject: [PATCH 2594/4878] i40e: Fix for displaying message regarding NVM
 version

commit 40feded8a247f95957a0de9abd100085fb320a2f upstream.

When loading the i40e driver, it prints a message like: 'The driver for the
device detected a newer version of the NVM image v1.x than expected v1.y.
Please install the most recent version of the network driver.' This is
misleading as the driver is working as expected.

Fix that by removing the second part of message and changing it from
dev_info to dev_dbg.

Fixes: 4fb29bddb57f ("i40e: The driver now prints the API version in error message")
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index cb8c94f91d006..9af9a827dcaf8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -14987,8 +14987,8 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (hw->aq.api_maj_ver == I40E_FW_API_VERSION_MAJOR &&
 	    hw->aq.api_min_ver > I40E_FW_MINOR_VERSION(hw))
-		dev_info(&pdev->dev,
-			 "The driver for the device detected a newer version of the NVM image v%u.%u than expected v%u.%u. Please install the most recent version of the network driver.\n",
+		dev_dbg(&pdev->dev,
+			"The driver for the device detected a newer version of the NVM image v%u.%u than v%u.%u.\n",
 			 hw->aq.api_maj_ver,
 			 hw->aq.api_min_ver,
 			 I40E_FW_API_VERSION_MAJOR,
-- 
GitLab


From c859c4de0bd7f97415569d4c4febd6316701b31a Mon Sep 17 00:00:00 2001
From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Date: Fri, 17 Dec 2021 14:29:05 +0000
Subject: [PATCH 2595/4878] i40e: Fix incorrect netdev's real number of RX/TX
 queues

commit e738451d78b2f8a9635d66c6a87f304b4d965f7a upstream.

There was a wrong queues representation in sysfs during
driver's reinitialization in case of online cpus number is
less than combined queues. It was caused by stopped
NetworkManager, which is responsible for calling vsi_open
function during driver's initialization.
In specific situation (ex. 12 cpus online) there were 16 queues
in /sys/class/net/<iface>/queues. In case of modifying queues with
value higher, than number of online cpus, then it caused write
errors and other errors.
Add updating of sysfs's queues representation during driver
initialization.

Fixes: 41c445ff0f48 ("i40e: main driver core")
Signed-off-by: Lukasz Cieplicki <lukaszx.cieplicki@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 32 ++++++++++++++++-----
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 9af9a827dcaf8..f888a443a067b 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8381,6 +8381,27 @@ int i40e_open(struct net_device *netdev)
 	return 0;
 }
 
+/**
+ * i40e_netif_set_realnum_tx_rx_queues - Update number of tx/rx queues
+ * @vsi: vsi structure
+ *
+ * This updates netdev's number of tx/rx queues
+ *
+ * Returns status of setting tx/rx queues
+ **/
+static int i40e_netif_set_realnum_tx_rx_queues(struct i40e_vsi *vsi)
+{
+	int ret;
+
+	ret = netif_set_real_num_rx_queues(vsi->netdev,
+					   vsi->num_queue_pairs);
+	if (ret)
+		return ret;
+
+	return netif_set_real_num_tx_queues(vsi->netdev,
+					    vsi->num_queue_pairs);
+}
+
 /**
  * i40e_vsi_open -
  * @vsi: the VSI to open
@@ -8417,13 +8438,7 @@ int i40e_vsi_open(struct i40e_vsi *vsi)
 			goto err_setup_rx;
 
 		/* Notify the stack of the actual queue counts. */
-		err = netif_set_real_num_tx_queues(vsi->netdev,
-						   vsi->num_queue_pairs);
-		if (err)
-			goto err_set_queues;
-
-		err = netif_set_real_num_rx_queues(vsi->netdev,
-						   vsi->num_queue_pairs);
+		err = i40e_netif_set_realnum_tx_rx_queues(vsi);
 		if (err)
 			goto err_set_queues;
 
@@ -13710,6 +13725,9 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 	case I40E_VSI_MAIN:
 	case I40E_VSI_VMDQ2:
 		ret = i40e_config_netdev(vsi);
+		if (ret)
+			goto err_netdev;
+		ret = i40e_netif_set_realnum_tx_rx_queues(vsi);
 		if (ret)
 			goto err_netdev;
 		ret = register_netdev(vsi->netdev);
-- 
GitLab


From 786a335fef1838077c9192878bc2e88f925abbef Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Sun, 19 Dec 2021 14:53:17 +0100
Subject: [PATCH 2596/4878] ftrace/samples: Add missing prototypes direct
 functions

commit 0daf5cb217a9ca8ae91b8f966ddae322699fb71d upstream.

There's another compilation fail (first here [1]) reported by kernel
test robot for W=1 clang build:

  >> samples/ftrace/ftrace-direct-multi-modify.c:7:6: warning: no previous
  prototype for function 'my_direct_func1' [-Wmissing-prototypes]
     void my_direct_func1(unsigned long ip)

Direct functions in ftrace direct sample modules need to have prototypes
defined. They are already global in order to be visible for the inline
assembly, so there's no problem.

The kernel test robot reported just error for ftrace-direct-multi-modify,
but I got same errors also for the rest of the modules touched by this patch.

[1] 67d4f6e3bf5d ftrace/samples: Add missing prototype for my_direct_func

Link: https://lkml.kernel.org/r/20211219135317.212430-1-jolsa@kernel.org

Reported-by: kernel test robot <lkp@intel.com>
Fixes: e1067a07cfbc ("ftrace/samples: Add module to test multi direct modify interface")
Fixes: ae0cc3b7e7f5 ("ftrace/samples: Add a sample module that implements modify_ftrace_direct()")
Fixes: 156473a0ff4f ("ftrace: Add another example of register_ftrace_direct() use case")
Fixes: b06457c83af6 ("ftrace: Add sample module that uses register_ftrace_direct()")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 samples/ftrace/ftrace-direct-modify.c | 3 +++
 samples/ftrace/ftrace-direct-too.c    | 3 +++
 samples/ftrace/ftrace-direct.c        | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/samples/ftrace/ftrace-direct-modify.c b/samples/ftrace/ftrace-direct-modify.c
index 5b9a09957c6e0..89e6bf27cd9f6 100644
--- a/samples/ftrace/ftrace-direct-modify.c
+++ b/samples/ftrace/ftrace-direct-modify.c
@@ -3,6 +3,9 @@
 #include <linux/kthread.h>
 #include <linux/ftrace.h>
 
+extern void my_direct_func1(void);
+extern void my_direct_func2(void);
+
 void my_direct_func1(void)
 {
 	trace_printk("my direct func1\n");
diff --git a/samples/ftrace/ftrace-direct-too.c b/samples/ftrace/ftrace-direct-too.c
index 3f0079c9bd6fa..11b99325f3dbf 100644
--- a/samples/ftrace/ftrace-direct-too.c
+++ b/samples/ftrace/ftrace-direct-too.c
@@ -4,6 +4,9 @@
 #include <linux/mm.h> /* for handle_mm_fault() */
 #include <linux/ftrace.h>
 
+extern void my_direct_func(struct vm_area_struct *vma,
+			   unsigned long address, unsigned int flags);
+
 void my_direct_func(struct vm_area_struct *vma,
 			unsigned long address, unsigned int flags)
 {
diff --git a/samples/ftrace/ftrace-direct.c b/samples/ftrace/ftrace-direct.c
index a2729d1ef17f5..642c50b5f7166 100644
--- a/samples/ftrace/ftrace-direct.c
+++ b/samples/ftrace/ftrace-direct.c
@@ -4,6 +4,8 @@
 #include <linux/sched.h> /* for wake_up_process() */
 #include <linux/ftrace.h>
 
+extern void my_direct_func(struct task_struct *p);
+
 void my_direct_func(struct task_struct *p)
 {
 	trace_printk("waking up %s-%d\n", p->comm, p->pid);
-- 
GitLab


From a8fe915be6c23b70de7c2172b8a31a730b6bde86 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Thu, 30 Dec 2021 17:36:31 -0700
Subject: [PATCH 2597/4878] ipv4: Check attribute length for RTA_GATEWAY in
 multipath route

commit 7a3429bace0e08d94c39245631ea6bc109dafa49 upstream.

syzbot reported uninit-value:
============================================================
  BUG: KMSAN: uninit-value in fib_get_nhs+0xac4/0x1f80
  net/ipv4/fib_semantics.c:708
   fib_get_nhs+0xac4/0x1f80 net/ipv4/fib_semantics.c:708
   fib_create_info+0x2411/0x4870 net/ipv4/fib_semantics.c:1453
   fib_table_insert+0x45c/0x3a10 net/ipv4/fib_trie.c:1224
   inet_rtm_newroute+0x289/0x420 net/ipv4/fib_frontend.c:886

Add helper to validate RTA_GATEWAY length before using the attribute.

Fixes: 4e902c57417c ("[IPv4]: FIB configuration using struct fib_config")
Reported-by: syzbot+d4b9a2851cc3ce998741@syzkaller.appspotmail.com
Signed-off-by: David Ahern <dsahern@kernel.org>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/fib_semantics.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 36f34977dda19..b25f912b685d4 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -663,6 +663,19 @@ static int fib_count_nexthops(struct rtnexthop *rtnh, int remaining,
 	return nhs;
 }
 
+static int fib_gw_from_attr(__be32 *gw, struct nlattr *nla,
+			    struct netlink_ext_ack *extack)
+{
+	if (nla_len(nla) < sizeof(*gw)) {
+		NL_SET_ERR_MSG(extack, "Invalid IPv4 address in RTA_GATEWAY");
+		return -EINVAL;
+	}
+
+	*gw = nla_get_in_addr(nla);
+
+	return 0;
+}
+
 /* only called when fib_nh is integrated into fib_info */
 static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
 		       int remaining, struct fib_config *cfg,
@@ -705,7 +718,11 @@ static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
 				return -EINVAL;
 			}
 			if (nla) {
-				fib_cfg.fc_gw4 = nla_get_in_addr(nla);
+				ret = fib_gw_from_attr(&fib_cfg.fc_gw4, nla,
+						       extack);
+				if (ret)
+					goto errout;
+
 				if (fib_cfg.fc_gw4)
 					fib_cfg.fc_gw_family = AF_INET;
 			} else if (nlav) {
@@ -903,6 +920,7 @@ int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi,
 		attrlen = rtnh_attrlen(rtnh);
 		if (attrlen > 0) {
 			struct nlattr *nla, *nlav, *attrs = rtnh_attrs(rtnh);
+			int err;
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
 			nlav = nla_find(attrs, attrlen, RTA_VIA);
@@ -913,12 +931,17 @@ int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi,
 			}
 
 			if (nla) {
+				__be32 gw;
+
+				err = fib_gw_from_attr(&gw, nla, extack);
+				if (err)
+					return err;
+
 				if (nh->fib_nh_gw_family != AF_INET ||
-				    nla_get_in_addr(nla) != nh->fib_nh_gw4)
+				    gw != nh->fib_nh_gw4)
 					return 1;
 			} else if (nlav) {
 				struct fib_config cfg2;
-				int err;
 
 				err = fib_gw_from_via(&cfg2, nlav, extack);
 				if (err)
-- 
GitLab


From 914420a2a6c5d72b9e9f0396a988810b6716b4b5 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Thu, 30 Dec 2021 17:36:32 -0700
Subject: [PATCH 2598/4878] ipv4: Check attribute length for RTA_FLOW in
 multipath route

commit 664b9c4b7392ce723b013201843264bf95481ce5 upstream.

Make sure RTA_FLOW is at least 4B before using.

Fixes: 4e902c57417c ("[IPv4]: FIB configuration using struct fib_config")
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/fib_semantics.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index b25f912b685d4..72782843d575a 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -732,8 +732,13 @@ static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
 			}
 
 			nla = nla_find(attrs, attrlen, RTA_FLOW);
-			if (nla)
+			if (nla) {
+				if (nla_len(nla) < sizeof(u32)) {
+					NL_SET_ERR_MSG(extack, "Invalid RTA_FLOW");
+					return -EINVAL;
+				}
 				fib_cfg.fc_flow = nla_get_u32(nla);
+			}
 
 			fib_cfg.fc_encap = nla_find(attrs, attrlen, RTA_ENCAP);
 			nla = nla_find(attrs, attrlen, RTA_ENCAP_TYPE);
@@ -964,8 +969,14 @@ int fib_nh_match(struct net *net, struct fib_config *cfg, struct fib_info *fi,
 
 #ifdef CONFIG_IP_ROUTE_CLASSID
 			nla = nla_find(attrs, attrlen, RTA_FLOW);
-			if (nla && nla_get_u32(nla) != nh->nh_tclassid)
-				return 1;
+			if (nla) {
+				if (nla_len(nla) < sizeof(u32)) {
+					NL_SET_ERR_MSG(extack, "Invalid RTA_FLOW");
+					return -EINVAL;
+				}
+				if (nla_get_u32(nla) != nh->nh_tclassid)
+					return 1;
+			}
 #endif
 		}
 
-- 
GitLab


From 173bfa2782fa5ca3678e72133190eb1b22913bc9 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Thu, 30 Dec 2021 17:36:33 -0700
Subject: [PATCH 2599/4878] ipv6: Check attribute length for RTA_GATEWAY in
 multipath route

commit 4619bcf91399f00a40885100fb61d594d8454033 upstream.

Commit referenced in the Fixes tag used nla_memcpy for RTA_GATEWAY as
does the current nla_get_in6_addr. nla_memcpy protects against accessing
memory greater than what is in the attribute, but there is no check
requiring the attribute to have an IPv6 address. Add it.

Fixes: 51ebd3181572 ("ipv6: add support of equal cost multipath (ECMP)")
Signed-off-by: David Ahern <dsahern@kernel.org>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/route.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 6fef0d7586bf6..536cbc78ddbcc 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5113,6 +5113,19 @@ out:
 	return should_notify;
 }
 
+static int fib6_gw_from_attr(struct in6_addr *gw, struct nlattr *nla,
+			     struct netlink_ext_ack *extack)
+{
+	if (nla_len(nla) < sizeof(*gw)) {
+		NL_SET_ERR_MSG(extack, "Invalid IPv6 address in RTA_GATEWAY");
+		return -EINVAL;
+	}
+
+	*gw = nla_get_in6_addr(nla);
+
+	return 0;
+}
+
 static int ip6_route_multipath_add(struct fib6_config *cfg,
 				   struct netlink_ext_ack *extack)
 {
@@ -5153,7 +5166,13 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
 			if (nla) {
-				r_cfg.fc_gateway = nla_get_in6_addr(nla);
+				int ret;
+
+				ret = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+							extack);
+				if (ret)
+					return ret;
+
 				r_cfg.fc_flags |= RTF_GATEWAY;
 			}
 			r_cfg.fc_encap = nla_find(attrs, attrlen, RTA_ENCAP);
-- 
GitLab


From 48d5adb08d60116e9d05f01dcdbe698b5d54cdbb Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Thu, 30 Dec 2021 17:36:34 -0700
Subject: [PATCH 2600/4878] ipv6: Check attribute length for RTA_GATEWAY when
 deleting multipath route

commit 1ff15a710a862db1101b97810af14aedc835a86a upstream.

Make sure RTA_GATEWAY for IPv6 multipath route has enough bytes to hold
an IPv6 address.

Fixes: 6b9ea5a64ed5 ("ipv6: fix multipath route replace error recovery")
Signed-off-by: David Ahern <dsahern@kernel.org>
Cc: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/route.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 536cbc78ddbcc..25745bce2c1f3 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5342,7 +5342,11 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
 			if (nla) {
-				nla_memcpy(&r_cfg.fc_gateway, nla, 16);
+				err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+							extack);
+				if (err)
+					return err;
+
 				r_cfg.fc_flags |= RTF_GATEWAY;
 			}
 		}
-- 
GitLab


From f403b5f96e9a153f00d1f3503b4e4dbb066601f8 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Thu, 30 Dec 2021 17:36:35 -0700
Subject: [PATCH 2601/4878] lwtunnel: Validate RTA_ENCAP_TYPE attribute length

commit 8bda81a4d400cf8a72e554012f0d8c45e07a3904 upstream.

lwtunnel_valid_encap_type_attr is used to validate encap attributes
within a multipath route. Add length validation checking to the type.

lwtunnel_valid_encap_type_attr is called converting attributes to
fib{6,}_config struct which means it is used before fib_get_nhs,
ip6_route_multipath_add, and ip6_route_multipath_del - other
locations that use rtnh_ok and then nla_get_u16 on RTA_ENCAP_TYPE
attribute.

Fixes: 9ed59592e3e3 ("lwtunnel: fix autoload of lwt modules")

Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/lwtunnel.c      | 4 ++++
 net/ipv4/fib_semantics.c | 3 +++
 net/ipv6/route.c         | 4 ++++
 3 files changed, 11 insertions(+)

diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index 8ec7d13d28608..f590b0e672a9b 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -192,6 +192,10 @@ int lwtunnel_valid_encap_type_attr(struct nlattr *attr, int remaining,
 			nla_entype = nla_find(attrs, attrlen, RTA_ENCAP_TYPE);
 
 			if (nla_entype) {
+				if (nla_len(nla_entype) < sizeof(u16)) {
+					NL_SET_ERR_MSG(extack, "Invalid RTA_ENCAP_TYPE");
+					return -EINVAL;
+				}
 				encap_type = nla_get_u16(nla_entype);
 
 				if (lwtunnel_valid_encap_type(encap_type,
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 72782843d575a..ab6a8f35d369d 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -741,6 +741,9 @@ static int fib_get_nhs(struct fib_info *fi, struct rtnexthop *rtnh,
 			}
 
 			fib_cfg.fc_encap = nla_find(attrs, attrlen, RTA_ENCAP);
+			/* RTA_ENCAP_TYPE length checked in
+			 * lwtunnel_valid_encap_type_attr
+			 */
 			nla = nla_find(attrs, attrlen, RTA_ENCAP_TYPE);
 			if (nla)
 				fib_cfg.fc_encap_type = nla_get_u16(nla);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 25745bce2c1f3..7d10a4488b85d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5176,6 +5176,10 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
 				r_cfg.fc_flags |= RTF_GATEWAY;
 			}
 			r_cfg.fc_encap = nla_find(attrs, attrlen, RTA_ENCAP);
+
+			/* RTA_ENCAP_TYPE length checked in
+			 * lwtunnel_valid_encap_type_attr
+			 */
 			nla = nla_find(attrs, attrlen, RTA_ENCAP_TYPE);
 			if (nla)
 				r_cfg.fc_encap_type = nla_get_u16(nla);
-- 
GitLab


From 4c34d5fd8c96a088098c24b09f0f18dc17ee76ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
Date: Sat, 1 Jan 2022 06:27:13 +0100
Subject: [PATCH 2602/4878] batman-adv: mcast: don't send link-local multicast
 to mcast routers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 938f2e0b57ffe8a6df71e1e177b2978b1b33fe5e upstream.

The addition of routable multicast TX handling introduced a
bug/regression for packets with a link-local multicast destination:
These packets would be sent to all batman-adv nodes with a multicast
router and to all batman-adv nodes with an old version without multicast
router detection.

This even disregards the batman-adv multicast fanout setting, which can
potentially lead to an unwanted, high number of unicast transmissions or
even congestion.

Fixing this by avoiding to send link-local multicast packets to nodes in
the multicast router list.

Fixes: 11d458c1cb9b ("batman-adv: mcast: apply optimizations for routable packets, too")
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/batman-adv/multicast.c      | 15 ++++++++++-----
 net/batman-adv/multicast.h      | 10 ++++++----
 net/batman-adv/soft-interface.c |  7 +++++--
 3 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 9af99c39b9fd9..139894ca788b9 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -1373,6 +1373,7 @@ batadv_mcast_forw_rtr_node_get(struct batadv_priv *bat_priv,
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: The multicast packet to check
  * @orig: an originator to be set to forward the skb to
+ * @is_routable: stores whether the destination is routable
  *
  * Return: the forwarding mode as enum batadv_forw_mode and in case of
  * BATADV_FORW_SINGLE set the orig to the single originator the skb
@@ -1380,17 +1381,16 @@ batadv_mcast_forw_rtr_node_get(struct batadv_priv *bat_priv,
  */
 enum batadv_forw_mode
 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
-		       struct batadv_orig_node **orig)
+		       struct batadv_orig_node **orig, int *is_routable)
 {
 	int ret, tt_count, ip_count, unsnoop_count, total_count;
 	bool is_unsnoopable = false;
 	unsigned int mcast_fanout;
 	struct ethhdr *ethhdr;
-	int is_routable = 0;
 	int rtr_count = 0;
 
 	ret = batadv_mcast_forw_mode_check(bat_priv, skb, &is_unsnoopable,
-					   &is_routable);
+					   is_routable);
 	if (ret == -ENOMEM)
 		return BATADV_FORW_NONE;
 	else if (ret < 0)
@@ -1403,7 +1403,7 @@ batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
 	ip_count = batadv_mcast_forw_want_all_ip_count(bat_priv, ethhdr);
 	unsnoop_count = !is_unsnoopable ? 0 :
 			atomic_read(&bat_priv->mcast.num_want_all_unsnoopables);
-	rtr_count = batadv_mcast_forw_rtr_count(bat_priv, is_routable);
+	rtr_count = batadv_mcast_forw_rtr_count(bat_priv, *is_routable);
 
 	total_count = tt_count + ip_count + unsnoop_count + rtr_count;
 
@@ -1723,6 +1723,7 @@ batadv_mcast_forw_want_rtr(struct batadv_priv *bat_priv,
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the multicast packet to transmit
  * @vid: the vlan identifier
+ * @is_routable: stores whether the destination is routable
  *
  * Sends copies of a frame with multicast destination to any node that signaled
  * interest in it, that is either via the translation table or the according
@@ -1735,7 +1736,7 @@ batadv_mcast_forw_want_rtr(struct batadv_priv *bat_priv,
  * is neither IPv4 nor IPv6. NET_XMIT_SUCCESS otherwise.
  */
 int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
-			   unsigned short vid)
+			   unsigned short vid, int is_routable)
 {
 	int ret;
 
@@ -1751,12 +1752,16 @@ int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
 		return ret;
 	}
 
+	if (!is_routable)
+		goto skip_mc_router;
+
 	ret = batadv_mcast_forw_want_rtr(bat_priv, skb, vid);
 	if (ret != NET_XMIT_SUCCESS) {
 		kfree_skb(skb);
 		return ret;
 	}
 
+skip_mc_router:
 	consume_skb(skb);
 	return ret;
 }
diff --git a/net/batman-adv/multicast.h b/net/batman-adv/multicast.h
index 3e114bc5ca3bb..1e787b522e69c 100644
--- a/net/batman-adv/multicast.h
+++ b/net/batman-adv/multicast.h
@@ -44,7 +44,8 @@ enum batadv_forw_mode {
 
 enum batadv_forw_mode
 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
-		       struct batadv_orig_node **mcast_single_orig);
+		       struct batadv_orig_node **mcast_single_orig,
+		       int *is_routable);
 
 int batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv,
 				struct sk_buff *skb,
@@ -52,7 +53,7 @@ int batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv,
 				struct batadv_orig_node *orig_node);
 
 int batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
-			   unsigned short vid);
+			   unsigned short vid, int is_routable);
 
 void batadv_mcast_init(struct batadv_priv *bat_priv);
 
@@ -71,7 +72,8 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig_node);
 
 static inline enum batadv_forw_mode
 batadv_mcast_forw_mode(struct batadv_priv *bat_priv, struct sk_buff *skb,
-		       struct batadv_orig_node **mcast_single_orig)
+		       struct batadv_orig_node **mcast_single_orig,
+		       int *is_routable)
 {
 	return BATADV_FORW_ALL;
 }
@@ -88,7 +90,7 @@ batadv_mcast_forw_send_orig(struct batadv_priv *bat_priv,
 
 static inline int
 batadv_mcast_forw_send(struct batadv_priv *bat_priv, struct sk_buff *skb,
-		       unsigned short vid)
+		       unsigned short vid, int is_routable)
 {
 	kfree_skb(skb);
 	return NET_XMIT_DROP;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 82e7ca886605a..7496047b318a4 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -200,6 +200,7 @@ static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
 	int gw_mode;
 	enum batadv_forw_mode forw_mode = BATADV_FORW_SINGLE;
 	struct batadv_orig_node *mcast_single_orig = NULL;
+	int mcast_is_routable = 0;
 	int network_offset = ETH_HLEN;
 	__be16 proto;
 
@@ -302,7 +303,8 @@ static netdev_tx_t batadv_interface_tx(struct sk_buff *skb,
 send:
 		if (do_bcast && !is_broadcast_ether_addr(ethhdr->h_dest)) {
 			forw_mode = batadv_mcast_forw_mode(bat_priv, skb,
-							   &mcast_single_orig);
+							   &mcast_single_orig,
+							   &mcast_is_routable);
 			if (forw_mode == BATADV_FORW_NONE)
 				goto dropped;
 
@@ -367,7 +369,8 @@ send:
 			ret = batadv_mcast_forw_send_orig(bat_priv, skb, vid,
 							  mcast_single_orig);
 		} else if (forw_mode == BATADV_FORW_SOME) {
-			ret = batadv_mcast_forw_send(bat_priv, skb, vid);
+			ret = batadv_mcast_forw_send(bat_priv, skb, vid,
+						     mcast_is_routable);
 		} else {
 			if (batadv_dat_snoop_outgoing_arp_request(bat_priv,
 								  skb))
-- 
GitLab


From 2de3d961f8e7b19fd84b727fdee40a8ee1b28dee Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 4 Jan 2022 01:45:08 -0800
Subject: [PATCH 2603/4878] sch_qfq: prevent shift-out-of-bounds in
 qfq_init_qdisc

commit 7d18a07897d07495ee140dd319b0e9265c0f68ba upstream.

tx_queue_len can be set to ~0U, we need to be more
careful about overflows.

__fls(0) is undefined, as this report shows:

UBSAN: shift-out-of-bounds in net/sched/sch_qfq.c:1430:24
shift exponent 51770272 is too large for 32-bit type 'int'
CPU: 0 PID: 25574 Comm: syz-executor.0 Not tainted 5.16.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x201/0x2d8 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_shift_out_of_bounds+0x494/0x530 lib/ubsan.c:330
 qfq_init_qdisc+0x43f/0x450 net/sched/sch_qfq.c:1430
 qdisc_create+0x895/0x1430 net/sched/sch_api.c:1253
 tc_modify_qdisc+0x9d9/0x1e20 net/sched/sch_api.c:1660
 rtnetlink_rcv_msg+0x934/0xe60 net/core/rtnetlink.c:5571
 netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2496
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0xaea/0xe60 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmsg+0x280/0x370 net/socket.c:2492
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: 462dbc9101ac ("pkt_sched: QFQ Plus: fair-queueing service at DRR cost")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/sch_qfq.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index ade2d6ddc9148..af8c63a9ec18c 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -1421,10 +1421,8 @@ static int qfq_init_qdisc(struct Qdisc *sch, struct nlattr *opt,
 	if (err < 0)
 		return err;
 
-	if (qdisc_dev(sch)->tx_queue_len + 1 > QFQ_MAX_AGG_CLASSES)
-		max_classes = QFQ_MAX_AGG_CLASSES;
-	else
-		max_classes = qdisc_dev(sch)->tx_queue_len + 1;
+	max_classes = min_t(u64, (u64)qdisc_dev(sch)->tx_queue_len + 1,
+			    QFQ_MAX_AGG_CLASSES);
 	/* max_cl_shift = floor(log_2(max_classes)) */
 	max_cl_shift = __fls(max_classes);
 	q->max_agg_classes = 1<<max_cl_shift;
-- 
GitLab


From e7f5480978fd245762380d40fed03930ee21ccea Mon Sep 17 00:00:00 2001
From: Arthur Kiyanovski <akiyano@amazon.com>
Date: Sun, 2 Jan 2022 07:37:26 +0000
Subject: [PATCH 2604/4878] net: ena: Fix undefined state when tx request id is
 out of bounds

commit c255a34e02efb1393d23ffb205ba1a11320aeffb upstream.

ena_com_tx_comp_req_id_get() checks the req_id of a received completion,
and if it is out of bounds returns -EINVAL. This is a sign that
something is wrong with the device and it needs to be reset.

The current code does not reset the device in this case, which leaves
the driver in an undefined state, where this completion is not properly
handled.

This commit adds a call to handle_invalid_req_id() in ena_clean_tx_irq()
and ena_clean_xdp_irq() which resets the device to fix the issue.

This commit also removes unnecessary request id checks from
validate_tx_req_id() and validate_xdp_req_id(). This check is unneeded
because it was already performed in ena_com_tx_comp_req_id_get(), which
is called right before these functions.

Fixes: 548c4940b9f1 ("net: ena: Implement XDP_TX action")
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 34 ++++++++++++--------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index df1884d57d1a0..dc15db1548535 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1199,26 +1199,22 @@ static int handle_invalid_req_id(struct ena_ring *ring, u16 req_id,
 
 static int validate_tx_req_id(struct ena_ring *tx_ring, u16 req_id)
 {
-	struct ena_tx_buffer *tx_info = NULL;
+	struct ena_tx_buffer *tx_info;
 
-	if (likely(req_id < tx_ring->ring_size)) {
-		tx_info = &tx_ring->tx_buffer_info[req_id];
-		if (likely(tx_info->skb))
-			return 0;
-	}
+	tx_info = &tx_ring->tx_buffer_info[req_id];
+	if (likely(tx_info->skb))
+		return 0;
 
 	return handle_invalid_req_id(tx_ring, req_id, tx_info, false);
 }
 
 static int validate_xdp_req_id(struct ena_ring *xdp_ring, u16 req_id)
 {
-	struct ena_tx_buffer *tx_info = NULL;
+	struct ena_tx_buffer *tx_info;
 
-	if (likely(req_id < xdp_ring->ring_size)) {
-		tx_info = &xdp_ring->tx_buffer_info[req_id];
-		if (likely(tx_info->xdpf))
-			return 0;
-	}
+	tx_info = &xdp_ring->tx_buffer_info[req_id];
+	if (likely(tx_info->xdpf))
+		return 0;
 
 	return handle_invalid_req_id(xdp_ring, req_id, tx_info, true);
 }
@@ -1243,9 +1239,14 @@ static int ena_clean_tx_irq(struct ena_ring *tx_ring, u32 budget)
 
 		rc = ena_com_tx_comp_req_id_get(tx_ring->ena_com_io_cq,
 						&req_id);
-		if (rc)
+		if (rc) {
+			if (unlikely(rc == -EINVAL))
+				handle_invalid_req_id(tx_ring, req_id, NULL,
+						      false);
 			break;
+		}
 
+		/* validate that the request id points to a valid skb */
 		rc = validate_tx_req_id(tx_ring, req_id);
 		if (rc)
 			break;
@@ -1801,9 +1802,14 @@ static int ena_clean_xdp_irq(struct ena_ring *xdp_ring, u32 budget)
 
 		rc = ena_com_tx_comp_req_id_get(xdp_ring->ena_com_io_cq,
 						&req_id);
-		if (rc)
+		if (rc) {
+			if (unlikely(rc == -EINVAL))
+				handle_invalid_req_id(xdp_ring, req_id, NULL,
+						      true);
 			break;
+		}
 
+		/* validate that the request id points to a valid xdp_frame */
 		rc = validate_xdp_req_id(xdp_ring, req_id);
 		if (rc)
 			break;
-- 
GitLab


From aa606b82cdfb292f144dcf5be9c29c928e026ecd Mon Sep 17 00:00:00 2001
From: Arthur Kiyanovski <akiyano@amazon.com>
Date: Sun, 2 Jan 2022 07:37:28 +0000
Subject: [PATCH 2605/4878] net: ena: Fix error handling when calculating max
 IO queues number

commit 5055dc0348b8b7c168e3296044bccd724e1ae6cd upstream.

The role of ena_calc_max_io_queue_num() is to return the number
of queues supported by the device, which means the return value
should be >=0.

The function that calls ena_calc_max_io_queue_num(), checks
the return value. If it is 0, it means the device reported
it supports 0 IO queues. This case is considered an error
and is handled by the calling function accordingly.

However the current implementation of ena_calc_max_io_queue_num()
is wrong, since when it detects the device supports 0 IO queues,
it returns -EFAULT.

In such a case the calling function doesn't detect the error,
and therefore doesn't handle it.

This commit changes ena_calc_max_io_queue_num() to return 0
in case the device reported it supports 0 queues, allowing the
calling function to properly handle the error case.

Fixes: 736ce3f414cc ("net: ena: make ethtool -l show correct max number of queues")
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index dc15db1548535..52414ac2c901a 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -3927,10 +3927,6 @@ static u32 ena_calc_max_io_queue_num(struct pci_dev *pdev,
 	max_num_io_queues = min_t(u32, max_num_io_queues, io_tx_cq_num);
 	/* 1 IRQ for for mgmnt and 1 IRQs for each IO direction */
 	max_num_io_queues = min_t(u32, max_num_io_queues, pci_msix_vec_count(pdev) - 1);
-	if (unlikely(!max_num_io_queues)) {
-		dev_err(&pdev->dev, "The device doesn't have io queues\n");
-		return -EFAULT;
-	}
 
 	return max_num_io_queues;
 }
-- 
GitLab


From 16d8568378f9ee2d1e69216d39961aa72710209f Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Wed, 22 Dec 2021 14:19:18 -0800
Subject: [PATCH 2606/4878] xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP
 just like fallocate

commit 983d8e60f50806f90534cc5373d0ce867e5aaf79 upstream.

The old ALLOCSP/FREESP ioctls in XFS can be used to preallocate space at
the end of files, just like fallocate and RESVSP.  Make the behavior
consistent with the other ioctls.

Reported-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/xfs/xfs_ioctl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 3fbd98f61ea5c..646735aad45df 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -686,7 +686,8 @@ xfs_ioc_space(
 
 	if (bf->l_start > XFS_ISIZE(ip)) {
 		error = xfs_alloc_file_space(ip, XFS_ISIZE(ip),
-				bf->l_start - XFS_ISIZE(ip), 0);
+				bf->l_start - XFS_ISIZE(ip),
+				XFS_BMAPI_PREALLOC);
 		if (error)
 			goto out_unlock;
 	}
-- 
GitLab


From 998d157e3b2acf5f605e49805f4c34947f3bad56 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 15 Nov 2021 00:12:07 +0100
Subject: [PATCH 2607/4878] power: supply: core: Break capacity loop

commit 51c7b6a0398f54b9120795796a4cff4fc9634f7d upstream.

We should not go on looking for more capacity tables after
we realize we have looked at the last one in
power_supply_find_ocv2cap_table().

Fixes: 3afb50d7125b ("power: supply: core: Add some helpers to use the battery OCV capacity table")
Cc: Chunyan Zhang <chunyan.zhang@unisoc.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/power_supply_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
index 38e3aa642131d..280c54c23e37e 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -834,6 +834,10 @@ power_supply_find_ocv2cap_table(struct power_supply_battery_info *info,
 		return NULL;
 
 	for (i = 0; i < POWER_SUPPLY_OCV_TEMP_MAX; i++) {
+		/* Out of capacity tables */
+		if (!info->ocv_table[i])
+			break;
+
 		temp_diff = abs(info->ocv_temp[i] - temp);
 
 		if (temp_diff < best_temp_diff) {
-- 
GitLab


From 62cbde77d9c1360deef75f080993f30015dedd8d Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 5 Nov 2021 08:20:50 -0700
Subject: [PATCH 2608/4878] power: reset: ltc2952: Fix use of floating point
 literals

commit 644106cdb89844be2496b21175b7c0c2e0fab381 upstream.

A new commit in LLVM causes an error on the use of 'long double' when
'-mno-x87' is used, which the kernel does through an alias,
'-mno-80387' (see the LLVM commit below for more details around why it
does this).

drivers/power/reset/ltc2952-poweroff.c:162:28: error: expression requires  'long double' type support, but target 'x86_64-unknown-linux-gnu' does not support it
        data->wde_interval = 300L * 1E6L;
                                  ^
drivers/power/reset/ltc2952-poweroff.c:162:21: error: expression requires  'long double' type support, but target 'x86_64-unknown-linux-gnu' does not support it
        data->wde_interval = 300L * 1E6L;
                           ^
drivers/power/reset/ltc2952-poweroff.c:163:41: error: expression requires  'long double' type support, but target 'x86_64-unknown-linux-gnu' does not support it
        data->trigger_delay = ktime_set(2, 500L*1E6L);
                                               ^
3 errors generated.

This happens due to the use of a 'long double' literal. The 'E6' part of
'1E6L' causes the literal to be a 'double' then the 'L' suffix promotes
it to 'long double'.

There is no visible reason for floating point values in this driver, as
the values are only assigned to integer types. Use NSEC_PER_MSEC, which
is the same integer value as '1E6L', to avoid changing functionality but
fix the error.

Fixes: 6647156c00cc ("power: reset: add LTC2952 poweroff driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1497
Link: https://github.com/llvm/llvm-project/commit/a8083d42b1c346e21623a1d36d1f0cadd7801d83
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/reset/ltc2952-poweroff.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c
index 318927938b05b..d3844ae9eca4a 100644
--- a/drivers/power/reset/ltc2952-poweroff.c
+++ b/drivers/power/reset/ltc2952-poweroff.c
@@ -159,8 +159,8 @@ static void ltc2952_poweroff_kill(void)
 
 static void ltc2952_poweroff_default(struct ltc2952_poweroff *data)
 {
-	data->wde_interval = 300L * 1E6L;
-	data->trigger_delay = ktime_set(2, 500L*1E6L);
+	data->wde_interval = 300L * NSEC_PER_MSEC;
+	data->trigger_delay = ktime_set(2, 500L * NSEC_PER_MSEC);
 
 	hrtimer_init(&data->timer_trigger, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	data->timer_trigger.function = ltc2952_poweroff_timer_trigger;
-- 
GitLab


From 61952934608cf6b8a66584f60c113ff9f035d2aa Mon Sep 17 00:00:00 2001
From: Thomas Toye <thomas@toye.io>
Date: Sat, 1 Jan 2022 18:22:07 +0100
Subject: [PATCH 2609/4878] rndis_host: support Hytera digital radios

commit 29262e1f773b4b6a43711120be564c57fca07cfb upstream.

Hytera makes a range of digital (DMR) radios. These radios can be
programmed to a allow a computer to control them over Ethernet over USB,
either using NCM or RNDIS.

This commit adds support for RNDIS for Hytera radios. I tested with a
Hytera PD785 and a Hytera MD785G. When these radios are programmed to
set up a Radio to PC Network using RNDIS, an USB interface will be added
with class 2 (Communications), subclass 2 (Abstract Modem Control) and
an interface protocol of 255 ("vendor specific" - lsusb even hints "MSFT
RNDIS?").

This patch is similar to the solution of this StackOverflow user, but
that only works for the Hytera MD785:
https://stackoverflow.com/a/53550858

To use the "Radio to PC Network" functionality of Hytera DMR radios, the
radios need to be programmed correctly in CPS (Hytera's Customer
Programming Software). "Forward to PC" should be checked in "Network"
(under "General Setting" in "Conventional") and the "USB Network
Communication Protocol" should be set to RNDIS.

Signed-off-by: Thomas Toye <thomas@toye.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/rndis_host.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index f9b359d4e2939..1505fe3f87ed3 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -608,6 +608,11 @@ static const struct usb_device_id	products [] = {
 	USB_DEVICE_AND_INTERFACE_INFO(0x1630, 0x0042,
 				      USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
 	.driver_info = (unsigned long) &rndis_poll_status_info,
+}, {
+	/* Hytera Communications DMR radios' "Radio to PC Network" */
+	USB_VENDOR_AND_INTERFACE_INFO(0x238b,
+				      USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
+	.driver_info = (unsigned long)&rndis_info,
 }, {
 	/* RNDIS is MSFT's un-official variant of CDC ACM */
 	USB_INTERFACE_INFO(USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
-- 
GitLab


From 4f260ea5537db35d2eeec9bca78a74713078a544 Mon Sep 17 00:00:00 2001
From: Hangyu Hua <hbh25y@gmail.com>
Date: Thu, 9 Dec 2021 16:28:39 +0800
Subject: [PATCH 2610/4878] phonet: refcount leak in pep_sock_accep

commit bcd0f93353326954817a4f9fa55ec57fb38acbb0 upstream.

sock_hold(sk) is invoked in pep_sock_accept(), but __sock_put(sk) is not
invoked in subsequent failure branches(pep_accept_conn() != 0).

Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20211209082839.33985-1-hbh25y@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Aayush Agarwal <aayush.a.agarwal@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/phonet/pep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 72018e5e4d8ef..65d463ad87707 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -868,6 +868,7 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
 
 	err = pep_accept_conn(newsk, skb);
 	if (err) {
+		__sock_put(sk);
 		sock_put(newsk);
 		newsk = NULL;
 		goto drop;
-- 
GitLab


From 5a7d650bb181c658719dcabb25702d502530092f Mon Sep 17 00:00:00 2001
From: Yauhen Kharuzhy <jekhor@gmail.com>
Date: Sun, 7 Nov 2021 23:20:01 +0300
Subject: [PATCH 2611/4878] power: bq25890: Enable continuous conversion for
 ADC at charging

commit 80211be1b9dec04cc2805d3d81e2091ecac289a1 upstream.

Instead of one shot run of ADC at beginning of charging, run continuous
conversion to ensure that all charging-related values are monitored
properly (input voltage, input current, themperature etc.).

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/bq25890_charger.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c
index 945c3257ca931..fe814805c68b5 100644
--- a/drivers/power/supply/bq25890_charger.c
+++ b/drivers/power/supply/bq25890_charger.c
@@ -581,12 +581,12 @@ static irqreturn_t __bq25890_handle_irq(struct bq25890_device *bq)
 
 	if (!new_state.online && bq->state.online) {	    /* power removed */
 		/* disable ADC */
-		ret = bq25890_field_write(bq, F_CONV_START, 0);
+		ret = bq25890_field_write(bq, F_CONV_RATE, 0);
 		if (ret < 0)
 			goto error;
 	} else if (new_state.online && !bq->state.online) { /* power inserted */
 		/* enable ADC, to have control of charge current/voltage */
-		ret = bq25890_field_write(bq, F_CONV_START, 1);
+		ret = bq25890_field_write(bq, F_CONV_RATE, 1);
 		if (ret < 0)
 			goto error;
 	}
-- 
GitLab


From 72b0d14a0a882262d1c38a12be5f9042f53aa10e Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Mon, 3 Jan 2022 10:19:11 -0700
Subject: [PATCH 2612/4878] ipv6: Continue processing multipath route even if
 gateway attribute is invalid

[ Upstream commit e30a845b0376eb51c9c94f56bbd53b2e08ba822f ]

ip6_route_multipath_del loop continues processing the multipath
attribute even if delete of a nexthop path fails. For consistency,
do the same if the gateway attribute is invalid.

Fixes: 1ff15a710a86 ("ipv6: Check attribute length for RTA_GATEWAY when deleting multipath route")
Signed-off-by: David Ahern <dsahern@kernel.org>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220103171911.94739-1-dsahern@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/route.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7d10a4488b85d..230d4af44a300 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5348,8 +5348,10 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
 			if (nla) {
 				err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
 							extack);
-				if (err)
-					return err;
+				if (err) {
+					last_err = err;
+					goto next_rtnh;
+				}
 
 				r_cfg.fc_flags |= RTF_GATEWAY;
 			}
@@ -5358,6 +5360,7 @@ static int ip6_route_multipath_del(struct fib6_config *cfg,
 		if (err)
 			last_err = err;
 
+next_rtnh:
 		rtnh = rtnh_next(rtnh, &remaining);
 	}
 
-- 
GitLab


From 498d77fc5e38880599853cf74139cea74dac8f08 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@kernel.org>
Date: Mon, 3 Jan 2022 10:05:55 -0700
Subject: [PATCH 2613/4878] ipv6: Do cleanup if attribute validation fails in
 multipath route

[ Upstream commit 95bdba23b5b4aa75fe3e6c84335e638641c707bb ]

As Nicolas noted, if gateway validation fails walking the multipath
attribute the code should jump to the cleanup to free previously
allocated memory.

Fixes: 1ff15a710a86 ("ipv6: Check attribute length for RTA_GATEWAY when deleting multipath route")
Signed-off-by: David Ahern <dsahern@kernel.org>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20220103170555.94638-1-dsahern@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/route.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 230d4af44a300..654bf4ca61260 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -5166,12 +5166,10 @@ static int ip6_route_multipath_add(struct fib6_config *cfg,
 
 			nla = nla_find(attrs, attrlen, RTA_GATEWAY);
 			if (nla) {
-				int ret;
-
-				ret = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
+				err = fib6_gw_from_attr(&r_cfg.fc_gateway, nla,
 							extack);
-				if (ret)
-					return ret;
+				if (err)
+					goto cleanup;
 
 				r_cfg.fc_flags |= RTF_GATEWAY;
 			}
-- 
GitLab


From b798b677f94d0bfc5e79c6f6fd87d90a8abc742c Mon Sep 17 00:00:00 2001
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Sat, 18 Dec 2021 17:57:46 +0800
Subject: [PATCH 2614/4878] usb: mtu3: fix interval value for intr and isoc

[ Upstream commit e3d4621c22f90c33321ae6a6baab60cdb8e5a77c ]

Use the Interval value from isoc/intr endpoint descriptor, no need
minus one. The original code doesn't cause transfer error for
normal cases, but it may have side effect with respond time of ERDY
or tPingTimeout.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20211218095749.6250-1-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/mtu3/mtu3_gadget.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index a3e1105c5c662..b7a6363f387aa 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -77,7 +77,7 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
 		if (usb_endpoint_xfer_int(desc) ||
 				usb_endpoint_xfer_isoc(desc)) {
 			interval = desc->bInterval;
-			interval = clamp_val(interval, 1, 16) - 1;
+			interval = clamp_val(interval, 1, 16);
 			if (usb_endpoint_xfer_isoc(desc) && comp_desc)
 				mult = comp_desc->bmAttributes;
 		}
@@ -89,7 +89,7 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
 		if (usb_endpoint_xfer_isoc(desc) ||
 				usb_endpoint_xfer_int(desc)) {
 			interval = desc->bInterval;
-			interval = clamp_val(interval, 1, 16) - 1;
+			interval = clamp_val(interval, 1, 16);
 			mult = usb_endpoint_maxp_mult(desc) - 1;
 		}
 		break;
-- 
GitLab


From 8c87a83ef891aff7f8d620abac841dadbf780035 Mon Sep 17 00:00:00 2001
From: Lixiaokeng <lixiaokeng@huawei.com>
Date: Mon, 20 Dec 2021 19:39:06 +0800
Subject: [PATCH 2615/4878] scsi: libiscsi: Fix UAF in
 iscsi_conn_get_param()/iscsi_conn_teardown()

[ Upstream commit 1b8d0300a3e9f216ae4901bab886db7299899ec6 ]

|- iscsi_if_destroy_conn            |-dev_attr_show
 |-iscsi_conn_teardown
  |-spin_lock_bh                     |-iscsi_sw_tcp_conn_get_param

  |-kfree(conn->persistent_address)   |-iscsi_conn_get_param
  |-kfree(conn->local_ipaddr)
                                       ==>|-read persistent_address
                                       ==>|-read local_ipaddr
  |-spin_unlock_bh

When iscsi_conn_teardown() and iscsi_conn_get_param() happen in parallel, a
UAF may be triggered.

Link: https://lore.kernel.org/r/046ec8a0-ce95-d3fc-3235-666a7c65b224@huawei.com
Reported-by: Lu Tixiong <lutianxiong@huawei.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Lixiaokeng <lixiaokeng@huawei.com>
Signed-off-by: Linfeilong <linfeilong@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/libiscsi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 30d27b6706746..d4e66c595eb87 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -2950,6 +2950,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
 	struct iscsi_session *session = conn->session;
+	char *tmp_persistent_address = conn->persistent_address;
+	char *tmp_local_ipaddr = conn->local_ipaddr;
 
 	del_timer_sync(&conn->transport_timer);
 
@@ -2971,8 +2973,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 	spin_lock_bh(&session->frwd_lock);
 	free_pages((unsigned long) conn->data,
 		   get_order(ISCSI_DEF_MAX_RECV_SEG_LEN));
-	kfree(conn->persistent_address);
-	kfree(conn->local_ipaddr);
 	/* regular RX path uses back_lock */
 	spin_lock_bh(&session->back_lock);
 	kfifo_in(&session->cmdpool.queue, (void*)&conn->login_task,
@@ -2984,6 +2984,8 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 	mutex_unlock(&session->eh_mutex);
 
 	iscsi_destroy_conn(cls_conn);
+	kfree(tmp_persistent_address);
+	kfree(tmp_local_ipaddr);
 }
 EXPORT_SYMBOL_GPL(iscsi_conn_teardown);
 
-- 
GitLab


From f82b48d1d86b50daaf379a68cbc7f2a2216eff8e Mon Sep 17 00:00:00 2001
From: William Zhao <wizhao@redhat.com>
Date: Thu, 23 Dec 2021 12:33:16 -0500
Subject: [PATCH 2616/4878] ip6_vti: initialize __ip6_tnl_parm struct in
 vti6_siocdevprivate

[ Upstream commit c1833c3964d5bd8c163bd4e01736a38bc473cb8a ]

The "__ip6_tnl_parm" struct was left uninitialized causing an invalid
load of random data when the "__ip6_tnl_parm" struct was used elsewhere.
As an example, in the function "ip6_tnl_xmit_ctl()", it tries to access
the "collect_md" member. With "__ip6_tnl_parm" being uninitialized and
containing random data, the UBSAN detected that "collect_md" held a
non-boolean value.

The UBSAN issue is as follows:
===============================================================
UBSAN: invalid-load in net/ipv6/ip6_tunnel.c:1025:14
load of value 30 is not a valid value for type '_Bool'
CPU: 1 PID: 228 Comm: kworker/1:3 Not tainted 5.16.0-rc4+ #8
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
<TASK>
dump_stack_lvl+0x44/0x57
ubsan_epilogue+0x5/0x40
__ubsan_handle_load_invalid_value+0x66/0x70
? __cpuhp_setup_state+0x1d3/0x210
ip6_tnl_xmit_ctl.cold.52+0x2c/0x6f [ip6_tunnel]
vti6_tnl_xmit+0x79c/0x1e96 [ip6_vti]
? lock_is_held_type+0xd9/0x130
? vti6_rcv+0x100/0x100 [ip6_vti]
? lock_is_held_type+0xd9/0x130
? rcu_read_lock_bh_held+0xc0/0xc0
? lock_acquired+0x262/0xb10
dev_hard_start_xmit+0x1e6/0x820
__dev_queue_xmit+0x2079/0x3340
? mark_lock.part.52+0xf7/0x1050
? netdev_core_pick_tx+0x290/0x290
? kvm_clock_read+0x14/0x30
? kvm_sched_clock_read+0x5/0x10
? sched_clock_cpu+0x15/0x200
? find_held_lock+0x3a/0x1c0
? lock_release+0x42f/0xc90
? lock_downgrade+0x6b0/0x6b0
? mark_held_locks+0xb7/0x120
? neigh_connected_output+0x31f/0x470
? lockdep_hardirqs_on+0x79/0x100
? neigh_connected_output+0x31f/0x470
? ip6_finish_output2+0x9b0/0x1d90
? rcu_read_lock_bh_held+0x62/0xc0
? ip6_finish_output2+0x9b0/0x1d90
ip6_finish_output2+0x9b0/0x1d90
? ip6_append_data+0x330/0x330
? ip6_mtu+0x166/0x370
? __ip6_finish_output+0x1ad/0xfb0
? nf_hook_slow+0xa6/0x170
ip6_output+0x1fb/0x710
? nf_hook.constprop.32+0x317/0x430
? ip6_finish_output+0x180/0x180
? __ip6_finish_output+0xfb0/0xfb0
? lock_is_held_type+0xd9/0x130
ndisc_send_skb+0xb33/0x1590
? __sk_mem_raise_allocated+0x11cf/0x1560
? dst_output+0x4a0/0x4a0
? ndisc_send_rs+0x432/0x610
addrconf_dad_completed+0x30c/0xbb0
? addrconf_rs_timer+0x650/0x650
? addrconf_dad_work+0x73c/0x10e0
addrconf_dad_work+0x73c/0x10e0
? addrconf_dad_completed+0xbb0/0xbb0
? rcu_read_lock_sched_held+0xaf/0xe0
? rcu_read_lock_bh_held+0xc0/0xc0
process_one_work+0x97b/0x1740
? pwq_dec_nr_in_flight+0x270/0x270
worker_thread+0x87/0xbf0
? process_one_work+0x1740/0x1740
kthread+0x3ac/0x490
? set_kthread_struct+0x100/0x100
ret_from_fork+0x22/0x30
</TASK>
===============================================================

The solution is to initialize "__ip6_tnl_parm" struct to zeros in the
"vti6_siocdevprivate()" function.

Signed-off-by: William Zhao <wizhao@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/ip6_vti.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 23aeeb46f99fc..99f2dc802e366 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -804,6 +804,8 @@ vti6_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	struct net *net = dev_net(dev);
 	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
 
+	memset(&p1, 0, sizeof(p1));
+
 	switch (cmd) {
 	case SIOCGETTUNNEL:
 		if (dev == ip6n->fb_tnl_dev) {
-- 
GitLab


From c2f4bb251eb4dedb045ee1c7787db6467c4c6a8b Mon Sep 17 00:00:00 2001
From: yangxingwu <xingwu.yang@gmail.com>
Date: Mon, 27 Dec 2021 16:29:51 +0800
Subject: [PATCH 2617/4878] net: udp: fix alignment problem in udp4_seq_show()

[ Upstream commit 6c25449e1a32c594d743df8e8258e8ef870b6a77 ]

$ cat /pro/net/udp

before:

  sl  local_address rem_address   st tx_queue rx_queue tr tm->when
26050: 0100007F:0035 00000000:0000 07 00000000:00000000 00:00000000
26320: 0100007F:0143 00000000:0000 07 00000000:00000000 00:00000000
27135: 00000000:8472 00000000:0000 07 00000000:00000000 00:00000000

after:

   sl  local_address rem_address   st tx_queue rx_queue tr tm->when
26050: 0100007F:0035 00000000:0000 07 00000000:00000000 00:00000000
26320: 0100007F:0143 00000000:0000 07 00000000:00000000 00:00000000
27135: 00000000:8472 00000000:0000 07 00000000:00000000 00:00000000

Signed-off-by: yangxingwu <xingwu.yang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 86ed2afbee302..ef2068a60d4ad 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -3006,7 +3006,7 @@ int udp4_seq_show(struct seq_file *seq, void *v)
 {
 	seq_setwidth(seq, 127);
 	if (v == SEQ_START_TOKEN)
-		seq_puts(seq, "  sl  local_address rem_address   st tx_queue "
+		seq_puts(seq, "   sl  local_address rem_address   st tx_queue "
 			   "rx_queue tr tm->when retrnsmt   uid  timeout "
 			   "inode ref pointer drops");
 	else {
-- 
GitLab


From dd8a09cfbb999154039468d371f8cc23ae05eaf4 Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Sun, 26 Dec 2021 21:32:45 -0500
Subject: [PATCH 2618/4878] atlantic: Fix buff_ring OOB in aq_ring_rx_clean

[ Upstream commit 5f50153288452e10b6edd69ec9112c49442b054a ]

The function obtain the next buffer without boundary check.
We should return with I/O error code.

The bug is found by fuzzing and the crash report is attached.
It is an OOB bug although reported as use-after-free.

[    4.804724] BUG: KASAN: use-after-free in aq_ring_rx_clean+0x1e88/0x2730 [atlantic]
[    4.805661] Read of size 4 at addr ffff888034fe93a8 by task ksoftirqd/0/9
[    4.806505]
[    4.806703] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G        W         5.6.0 #34
[    4.809030] Call Trace:
[    4.809343]  dump_stack+0x76/0xa0
[    4.809755]  print_address_description.constprop.0+0x16/0x200
[    4.810455]  ? aq_ring_rx_clean+0x1e88/0x2730 [atlantic]
[    4.811234]  ? aq_ring_rx_clean+0x1e88/0x2730 [atlantic]
[    4.813183]  __kasan_report.cold+0x37/0x7c
[    4.813715]  ? aq_ring_rx_clean+0x1e88/0x2730 [atlantic]
[    4.814393]  kasan_report+0xe/0x20
[    4.814837]  aq_ring_rx_clean+0x1e88/0x2730 [atlantic]
[    4.815499]  ? hw_atl_b0_hw_ring_rx_receive+0x9a5/0xb90 [atlantic]
[    4.816290]  aq_vec_poll+0x179/0x5d0 [atlantic]
[    4.816870]  ? _GLOBAL__sub_I_65535_1_aq_pci_func_init+0x20/0x20 [atlantic]
[    4.817746]  ? __next_timer_interrupt+0xba/0xf0
[    4.818322]  net_rx_action+0x363/0xbd0
[    4.818803]  ? call_timer_fn+0x240/0x240
[    4.819302]  ? __switch_to_asm+0x40/0x70
[    4.819809]  ? napi_busy_loop+0x520/0x520
[    4.820324]  __do_softirq+0x18c/0x634
[    4.820797]  ? takeover_tasklets+0x5f0/0x5f0
[    4.821343]  run_ksoftirqd+0x15/0x20
[    4.821804]  smpboot_thread_fn+0x2f1/0x6b0
[    4.822331]  ? smpboot_unregister_percpu_thread+0x160/0x160
[    4.823041]  ? __kthread_parkme+0x80/0x100
[    4.823571]  ? smpboot_unregister_percpu_thread+0x160/0x160
[    4.824301]  kthread+0x2b5/0x3b0
[    4.824723]  ? kthread_create_on_node+0xd0/0xd0
[    4.825304]  ret_from_fork+0x35/0x40

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/aquantia/atlantic/aq_ring.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 24122ccda614c..72f8751784c31 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -365,6 +365,10 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
 		if (!buff->is_eop) {
 			buff_ = buff;
 			do {
+				if (buff_->next >= self->size) {
+					err = -EIO;
+					goto err_exit;
+				}
 				next_ = buff_->next,
 				buff_ = &self->buff_ring[next_];
 				is_rsc_completed =
@@ -388,6 +392,10 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
 			    (buff->is_lro && buff->is_cso_err)) {
 				buff_ = buff;
 				do {
+					if (buff_->next >= self->size) {
+						err = -EIO;
+						goto err_exit;
+					}
 					next_ = buff_->next,
 					buff_ = &self->buff_ring[next_];
 
-- 
GitLab


From 10b9ccd0674df02992a7e02b877fbd2eed4b1e14 Mon Sep 17 00:00:00 2001
From: wolfgang huang <huangjinhui@kylinos.cn>
Date: Tue, 28 Dec 2021 16:01:20 +0800
Subject: [PATCH 2619/4878] mISDN: change function names to avoid conflicts

[ Upstream commit 8b5fdfc57cc2471179d1c51081424ded833c16c8 ]

As we build for mips, we meet following error. l1_init error with
multiple definition. Some architecture devices usually marked with
l1, l2, lxx as the start-up phase. so we change the mISDN function
names, align with Isdnl2_xxx.

mips-linux-gnu-ld: drivers/isdn/mISDN/layer1.o: in function `l1_init':
(.text+0x890): multiple definition of `l1_init'; \
arch/mips/kernel/bmips_5xxx_init.o:(.text+0xf0): first defined here
make[1]: *** [home/mips/kernel-build/linux/Makefile:1161: vmlinux] Error 1

Signed-off-by: wolfgang huang <huangjinhui@kylinos.cn>
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/isdn/mISDN/core.c   | 6 +++---
 drivers/isdn/mISDN/core.h   | 4 ++--
 drivers/isdn/mISDN/layer1.c | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/isdn/mISDN/core.c b/drivers/isdn/mISDN/core.c
index 55891e4204460..a41b4b2645941 100644
--- a/drivers/isdn/mISDN/core.c
+++ b/drivers/isdn/mISDN/core.c
@@ -381,7 +381,7 @@ mISDNInit(void)
 	err = mISDN_inittimer(&debug);
 	if (err)
 		goto error2;
-	err = l1_init(&debug);
+	err = Isdnl1_Init(&debug);
 	if (err)
 		goto error3;
 	err = Isdnl2_Init(&debug);
@@ -395,7 +395,7 @@ mISDNInit(void)
 error5:
 	Isdnl2_cleanup();
 error4:
-	l1_cleanup();
+	Isdnl1_cleanup();
 error3:
 	mISDN_timer_cleanup();
 error2:
@@ -408,7 +408,7 @@ static void mISDN_cleanup(void)
 {
 	misdn_sock_cleanup();
 	Isdnl2_cleanup();
-	l1_cleanup();
+	Isdnl1_cleanup();
 	mISDN_timer_cleanup();
 	class_unregister(&mISDN_class);
 
diff --git a/drivers/isdn/mISDN/core.h b/drivers/isdn/mISDN/core.h
index 23b44d3033279..42599f49c189d 100644
--- a/drivers/isdn/mISDN/core.h
+++ b/drivers/isdn/mISDN/core.h
@@ -60,8 +60,8 @@ struct Bprotocol	*get_Bprotocol4id(u_int);
 extern int	mISDN_inittimer(u_int *);
 extern void	mISDN_timer_cleanup(void);
 
-extern int	l1_init(u_int *);
-extern void	l1_cleanup(void);
+extern int	Isdnl1_Init(u_int *);
+extern void	Isdnl1_cleanup(void);
 extern int	Isdnl2_Init(u_int *);
 extern void	Isdnl2_cleanup(void);
 
diff --git a/drivers/isdn/mISDN/layer1.c b/drivers/isdn/mISDN/layer1.c
index 98a3bc6c17009..7b31c25a550e3 100644
--- a/drivers/isdn/mISDN/layer1.c
+++ b/drivers/isdn/mISDN/layer1.c
@@ -398,7 +398,7 @@ create_l1(struct dchannel *dch, dchannel_l1callback *dcb) {
 EXPORT_SYMBOL(create_l1);
 
 int
-l1_init(u_int *deb)
+Isdnl1_Init(u_int *deb)
 {
 	debug = deb;
 	l1fsm_s.state_count = L1S_STATE_COUNT;
@@ -409,7 +409,7 @@ l1_init(u_int *deb)
 }
 
 void
-l1_cleanup(void)
+Isdnl1_cleanup(void)
 {
 	mISDN_FsmFree(&l1fsm_s);
 }
-- 
GitLab


From cf07884e6becbc654bc0b4932415faa0ba3db6cf Mon Sep 17 00:00:00 2001
From: "Lai, Derek" <Derek.Lai@amd.com>
Date: Mon, 6 Dec 2021 17:10:59 +0800
Subject: [PATCH 2620/4878] drm/amd/display: Added power down for DCN10

[ Upstream commit d97e631af2db84c8c9d63abf68d487d0bb559e4c ]

[Why]
The change of setting a timer callback on boot for 10 seconds is still
working, just lacked power down for DCN10.

[How]
Added power down for DCN10.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Derek Lai <Derek.Lai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
index b24c8ae8b1ece..7e228c181b298 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
@@ -77,6 +77,7 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
 	.get_clock = dcn10_get_clock,
 	.get_vupdate_offset_from_vsync = dcn10_get_vupdate_offset_from_vsync,
 	.calc_vupdate_position = dcn10_calc_vupdate_position,
+	.power_down = dce110_power_down,
 	.set_backlight_level = dce110_set_backlight_level,
 	.set_abm_immediate_disable = dce110_set_abm_immediate_disable,
 	.set_pipe = dce110_set_pipe,
-- 
GitLab


From f63fa1a0d4df66448c045676f2b1e722d07697a4 Mon Sep 17 00:00:00 2001
From: Tamir Duberstein <tamird@gmail.com>
Date: Wed, 29 Dec 2021 15:09:47 -0500
Subject: [PATCH 2621/4878] ipv6: raw: check passed optlen before reading

[ Upstream commit fb7bc9204095090731430c8921f9e629740c110a ]

Add a check that the user-provided option is at least as long as the
number of bytes we intend to read. Before this patch we would blindly
read sizeof(int) bytes even in cases where the user passed
optlen<sizeof(int), which would potentially read garbage or fault.

Discovered by new tests in https://github.com/google/gvisor/pull/6957 .

The original get_user call predates history in the git repo.

Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20211229200947.2862255-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/raw.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 00f133a55ef7c..38349054e361e 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1020,6 +1020,9 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
 	struct raw6_sock *rp = raw6_sk(sk);
 	int val;
 
+	if (optlen < sizeof(val))
+		return -EINVAL;
+
 	if (copy_from_sockptr(&val, optval, sizeof(val)))
 		return -EFAULT;
 
-- 
GitLab


From ef81f7d406c2f77fa0942db732adb8de1f4dca11 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Tue, 4 Jan 2022 18:02:47 +0100
Subject: [PATCH 2622/4878] ARM: dts: gpio-ranges property is now required

[ Upstream commit c8013355ead68dce152cf426686f8a5f80d88b40 ]

Since [1], added in 5.7, the absence of a gpio-ranges property has
prevented GPIOs from being restored to inputs when released.
Add those properties for BCM283x and BCM2711 devices.

[1] commit 2ab73c6d8323 ("gpio: Support GPIO controllers without
    pin-ranges")

Link: https://lore.kernel.org/r/20220104170247.956760-1-linus.walleij@linaro.org
Fixes: 2ab73c6d8323 ("gpio: Support GPIO controllers without pin-ranges")
Fixes: 266423e60ea1 ("pinctrl: bcm2835: Change init order for gpio hogs")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211206092237.4105895-3-phil@raspberrypi.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm2711.dtsi | 2 ++
 arch/arm/boot/dts/bcm283x.dtsi | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 4ade854bdcdaf..55ec83bde5a61 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -555,6 +555,8 @@
 		     <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
 		     <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
 
+	gpio-ranges = <&gpio 0 0 58>;
+
 	gpclk0_gpio49: gpclk0_gpio49 {
 		pin-gpclk {
 			pins = "gpio49";
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 0f3be55201a5b..ffdf7c4fba465 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -126,6 +126,8 @@
 			interrupt-controller;
 			#interrupt-cells = <2>;
 
+			gpio-ranges = <&gpio 0 0 54>;
+
 			/* Defines common pin muxing groups
 			 *
 			 * While each pin can have its mux selected
-- 
GitLab


From 674071c9eb26ae75a63dd7d6a49857a00c903754 Mon Sep 17 00:00:00 2001
From: Nikita Travkin <nikita@trvn.ru>
Date: Sat, 8 Jan 2022 23:19:19 -0800
Subject: [PATCH 2623/4878] Input: zinitix - make sure the IRQ is allocated
 before it gets enabled

commit cf73ed894ee939d6706d65e0cd186e4a64e3af6d upstream.

Since irq request is the last thing in the driver probe, it happens
later than the input device registration. This means that there is a
small time window where if the open method is called the driver will
attempt to enable not yet available irq.

Fix that by moving the irq request before the input device registration.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Fixes: 26822652c85e ("Input: add zinitix touchscreen driver")
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/20220106072840.36851-2-nikita@trvn.ru
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/touchscreen/zinitix.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/input/touchscreen/zinitix.c b/drivers/input/touchscreen/zinitix.c
index fd8b4e9f08a21..6df6f07f1ac66 100644
--- a/drivers/input/touchscreen/zinitix.c
+++ b/drivers/input/touchscreen/zinitix.c
@@ -488,6 +488,15 @@ static int zinitix_ts_probe(struct i2c_client *client)
 		return error;
 	}
 
+	error = devm_request_threaded_irq(&client->dev, client->irq,
+					  NULL, zinitix_ts_irq_handler,
+					  IRQF_ONESHOT,
+					  client->name, bt541);
+	if (error) {
+		dev_err(&client->dev, "Failed to request IRQ: %d\n", error);
+		return error;
+	}
+
 	error = zinitix_init_input_dev(bt541);
 	if (error) {
 		dev_err(&client->dev,
@@ -514,13 +523,6 @@ static int zinitix_ts_probe(struct i2c_client *client)
 	}
 
 	irq_set_status_flags(client->irq, IRQ_NOAUTOEN);
-	error = devm_request_threaded_irq(&client->dev, client->irq,
-					  NULL, zinitix_ts_irq_handler,
-					  IRQF_ONESHOT, client->name, bt541);
-	if (error) {
-		dev_err(&client->dev, "Failed to request IRQ: %d\n", error);
-		return error;
-	}
 
 	return 0;
 }
-- 
GitLab


From df395c763ba08b8b4385481af07d5d1c658dd917 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 11 Jan 2022 15:25:03 +0100
Subject: [PATCH 2624/4878] Linux 5.10.91

Link: https://lore.kernel.org/r/20220110071817.337619922@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 556241a10821f..c8d677c7eaa11 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 90
+SUBLEVEL = 91
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From c53f0e3530641d6b696bae12eed55c58599ab516 Mon Sep 17 00:00:00 2001
From: Jeson Gao <jeson.gao@unisoc.com>
Date: Thu, 6 Jan 2022 18:21:31 +0800
Subject: [PATCH 2625/4878] ANDROID: thermal: Add vendor hook to get thermal
 zone device

Need to get temperature data and config info from thermal zone device.

Bug: 208946028

Signed-off-by: Jeson Gao <jeson.gao@unisoc.com>
Change-Id: I5945df5258181b4a441b6bbe09327099491418b3
---
 drivers/android/vendor_hooks.c | 1 +
 drivers/thermal/thermal_core.c | 2 ++
 include/trace/hooks/thermal.h  | 5 +++++
 3 files changed, 8 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index f34679b09a07e..41ce8e3e140d2 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -380,3 +380,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_request_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_target_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_power_throttle);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_thermal_power_cap);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_get_thermal_zone_device);
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 48a993d2236ad..070cbb34fdfa9 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -568,6 +568,8 @@ void thermal_zone_device_update(struct thermal_zone_device *tz,
 
 	for (count = 0; count < tz->trips; count++)
 		handle_thermal_trip(tz, count);
+
+	trace_android_vh_get_thermal_zone_device(tz);
 }
 EXPORT_SYMBOL_GPL(thermal_zone_device_update);
 
diff --git a/include/trace/hooks/thermal.h b/include/trace/hooks/thermal.h
index 76b4c09b93100..25d6151b29190 100644
--- a/include/trace/hooks/thermal.h
+++ b/include/trace/hooks/thermal.h
@@ -35,6 +35,11 @@ DECLARE_HOOK(android_vh_enable_thermal_power_throttle,
 DECLARE_HOOK(android_vh_thermal_power_cap,
 	TP_PROTO(u32 *power_range),
 	TP_ARGS(power_range));
+
+DECLARE_HOOK(android_vh_get_thermal_zone_device,
+	TP_PROTO(struct thermal_zone_device *tz),
+	TP_ARGS(tz));
+
 #endif /* _TRACE_HOOK_THERMAL_H */
 /* This part must be outside protection */
 #include <trace/define_trace.h>
-- 
GitLab


From df9986dceeaa00af8e4f92bdbe894314afb954a7 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Tue, 11 Jan 2022 21:31:18 +0000
Subject: [PATCH 2626/4878] ANDROID: fuse-bpf: Make compile with CONFIG_FUSE
 but no CONFIG_FUSE_BPF

Fixes: ANDROID: fuse-bpf: Fix perms on readdir
Test: Builds with and without CONFIG_FUSE_BPF
Bug: 202785178
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: If8b4603dd6f4bd159bfd68fc61c377dcb62ebcd0
---
 fs/fuse/dir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index af9e69b7a6a3c..f5f985c4600e5 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1576,8 +1576,10 @@ static int fuse_permission(struct inode *inode, int mask)
 			if (!err && !(inode->i_mode & S_IXUGO))
 				return -EACCES;
 		}
+#ifdef CONFIG_FUSE_BPF
 	} else if (!(mask & MAY_NOT_BLOCK) && fi->backing_inode) {
 		err = fuse_access(inode, mask);
+#endif
 	}
 	return err;
 }
-- 
GitLab


From 10df8502c6bfaa74188c61b83953327a042c18a4 Mon Sep 17 00:00:00 2001
From: Roman Kiryanov <rkir@google.com>
Date: Tue, 11 Jan 2022 18:43:13 -0800
Subject: [PATCH 2627/4878] ANDROID: Update abi_gki_aarch64_virtual_device

goldfish drivers were enabled and they require
additional symbols.

Bug: 213942757
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I9f4ba0f0bc278f3acf42aaafacb709b4bb25a65b
---
 android/abi_gki_aarch64_virtual_device | 94 +++++++++++++++++---------
 1 file changed, 61 insertions(+), 33 deletions(-)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index e6fe67b4393be..9974cae40e66e 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -84,7 +84,13 @@
   dev_queue_xmit
   dev_set_name
   _dev_warn
+  dma_alloc_attrs
   dma_buf_export
+  dma_fence_context_alloc
+  dma_fence_init
+  dma_fence_release
+  dma_fence_signal_locked
+  dma_free_attrs
   dma_map_sg_attrs
   dma_set_coherent_mask
   dma_set_mask
@@ -100,6 +106,8 @@
   fd_install
   finish_wait
   flush_work
+  flush_workqueue
+  fput
   free_irq
   free_netdev
   __free_pages
@@ -135,12 +143,14 @@
   input_register_device
   input_set_abs_params
   input_unregister_device
+  __ioremap
   iounmap
   jiffies
   jiffies_to_msecs
   kasan_flag_enabled
   kfree
   kfree_skb
+  kimage_voffset
   __kmalloc
   kmalloc_caches
   kmem_cache_alloc
@@ -174,8 +184,10 @@
   memcpy
   memmove
   memparse
+  memremap
   memset
   memstart_addr
+  memunmap
   misc_deregister
   misc_register
   mod_timer
@@ -221,11 +233,17 @@
   pci_read_config_byte
   pci_read_config_dword
   __pci_register_driver
+  pci_release_region
+  pci_request_region
   pci_set_master
   pci_unregister_driver
   __per_cpu_offset
   perf_trace_buf_alloc
   perf_trace_run_bpf_submit
+  platform_device_add
+  platform_device_alloc
+  platform_device_del
+  platform_device_put
   platform_device_unregister
   __platform_driver_register
   platform_driver_unregister
@@ -312,33 +330,38 @@
   snd_card_free
   snd_card_new
   snd_card_register
-  snd_ctl_add
   snd_ctl_enum_info
-  snd_ctl_new1
   snd_ctl_sync_vmaster
   snd_device_new
   snd_jack_new
   snd_jack_report
   snd_pci_quirk_lookup
   snd_pcm_add_chmap_ctls
+  snd_pcm_hw_constraint_integer
   snd_pcm_new
   snd_pcm_period_elapsed
+  snd_pcm_set_managed_buffer_all
   snd_pcm_set_ops
   snprintf
   sort
   sprintf
+  sscanf
   __stack_chk_fail
+  strchr
   strcmp
   strcpy
   strlcpy
   strlen
   strncmp
   strncpy
+  strscpy
   strsep
+  sync_file_create
   synchronize_rcu
   sysfs_create_group
   __sysfs_match_string
   sysfs_remove_group
+  sysfs_remove_link
   system_wq
   trace_event_buffer_commit
   trace_event_buffer_reserve
@@ -394,6 +417,7 @@
   virtqueue_kick
   virtqueue_kick_prepare
   virtqueue_notify
+  vmalloc_to_page
   vring_create_virtqueue
   vring_del_virtqueue
   vring_interrupt
@@ -407,7 +431,6 @@
   amba_request_regions
   clk_get
   clk_put
-  __ioremap
   serio_unregister_port
 
 # required by armmmci.ko
@@ -529,6 +552,17 @@
   power_supply_register
   power_supply_unregister
 
+# required by goldfish_pipe.ko
+  get_user_pages_fast
+  set_page_dirty
+  tasklet_init
+  tasklet_kill
+  __tasklet_schedule
+
+# required by goldfish_sync.ko
+  dma_fence_default_wait
+  dma_fence_free
+
 # required by gs_usb.ko
   alloc_candev_mqs
   alloc_can_err_skb
@@ -668,7 +702,6 @@
   device_create_file
   device_remove_file
   device_remove_groups
-  flush_workqueue
   i2c_adapter_type
   i2c_bus_type
   i2c_client_type
@@ -708,17 +741,12 @@
   cec_s_phys_addr
   cec_transmit_attempt_done_ts
   cec_unregister_adapter
-  strscpy
   wait_for_completion_timeout
 
 # required by rtc-test.ko
   add_timer
   devm_rtc_allocate_device
   ktime_get_real_seconds
-  platform_device_add
-  platform_device_alloc
-  platform_device_del
-  platform_device_put
   __rtc_register_device
   rtc_time64_to_tm
   rtc_tm_to_time64
@@ -737,7 +765,6 @@
   _ctype
   devm_led_classdev_register_ext
   snd_ctl_boolean_stereo_info
-  strchr
   strlcat
   __sw_hweight32
 
@@ -756,22 +783,22 @@
   __request_module
   snd_card_rw_proc_new
   snd_component_add
+  snd_ctl_add
   _snd_ctl_add_follower
   snd_ctl_add_vmaster_hook
   snd_ctl_apply_vmaster_followers
   snd_ctl_boolean_mono_info
   snd_ctl_find_id
   snd_ctl_make_virtual_master
+  snd_ctl_new1
   snd_ctl_remove
   snd_device_disconnect
   snd_device_free
   snd_jack_set_key
-  snd_pcm_hw_constraint_integer
   snd_pcm_hw_constraint_minmax
   snd_pcm_hw_constraint_step
   snd_pcm_hw_limit_rates
   snd_pcm_lib_default_mmap
-  snd_pcm_set_managed_buffer_all
   snd_pcm_set_sync
   snd_pcm_std_chmaps
   strncat
@@ -854,8 +881,6 @@
   idr_replace
   jiffies_to_usecs
   memchr_inv
-  memremap
-  memunmap
   of_property_match_string
   pm_suspend_global_flags
   securityfs_create_dir
@@ -865,16 +890,16 @@
   seq_putc
   seq_release
   seq_write
-  sysfs_remove_link
   unregister_chrdev_region
 
 # required by tpm_vtpm_proxy.ko
   anon_inode_getfile
   compat_ptr_ioctl
-  fput
 
 # required by usbip-core.ko
   iov_iter_kvec
+  param_ops_ulong
+  print_hex_dump
   sock_recvmsg
 
 # required by vcan.ko
@@ -897,12 +922,32 @@
   devm_mfd_add_devices
 
 # required by vhci-hcd.ko
+  kernel_sendmsg
   kernel_sock_shutdown
+  kstrtoll
+  kthread_create_on_node
+  kthread_should_stop
+  kthread_stop
   platform_bus
+  platform_device_add_data
   sockfd_lookup
+  usb_add_hcd
+  usb_create_hcd
   usb_create_shared_hcd
+  usb_disabled
   usb_get_dev
+  usb_hcd_check_unlink_urb
+  usb_hcd_giveback_urb
+  usb_hcd_is_primary_hcd
+  usb_hcd_link_urb_to_ep
+  usb_hcd_poll_rh_status
+  usb_hcd_resume_root_hub
+  usb_hcd_unlink_urb_from_ep
   usb_put_dev
+  usb_put_hcd
+  usb_remove_hcd
+  usb_speed_string
+  wake_up_process
 
 # required by virt_wifi.ko
   cfg80211_connect_done
@@ -924,11 +969,7 @@
 
 # required by virtio-gpu.ko
   __devm_request_region
-  dma_fence_context_alloc
-  dma_fence_init
   dma_fence_match_context
-  dma_fence_release
-  dma_fence_signal_locked
   dma_fence_wait_timeout
   dma_resv_add_excl_fence
   dma_resv_test_signaled_rcu
@@ -1044,13 +1085,11 @@
   kmalloc_order_trace
   memdup_user
   seq_puts
-  sync_file_create
   sync_file_get_fence
   __traceiter_dma_fence_emit
   __traceiter_gpu_mem_total
   __tracepoint_dma_fence_emit
   __tracepoint_gpu_mem_total
-  vmalloc_to_page
   vmemdup_user
   vm_get_page_prot
   ww_mutex_lock_interruptible
@@ -1093,8 +1132,6 @@
   cdev_alloc
   cdev_del
   device_destroy
-  dma_alloc_attrs
-  dma_free_attrs
   fasync_helper
   freezing_slow_path
   hvc_alloc
@@ -1118,7 +1155,6 @@
   device_for_each_child
   devm_platform_ioremap_resource
   platform_device_register_full
-  sscanf
 
 # required by virtio_net.ko
   bpf_dispatcher_xdp_func
@@ -1195,9 +1231,7 @@
   pci_iomap_range
   pci_irq_get_affinity
   pci_irq_vector
-  pci_release_region
   pci_release_selected_regions
-  pci_request_region
   pci_request_selected_regions
   pci_vfs_assigned
   synchronize_irq
@@ -1211,14 +1245,8 @@
   nvdimm_pmem_region_create
 
 # required by virtio_snd.ko
-  snd_ctl_notify
   snd_pcm_format_physical_width
-  snd_pcm_lib_free_pages
   snd_pcm_lib_ioctl
-  snd_pcm_lib_malloc_pages
-  snd_pcm_lib_preallocate_pages
-  _snd_pcm_stream_lock_irqsave
-  snd_pcm_stream_unlock_irqrestore
   wait_for_completion_interruptible_timeout
 
 # required by vmw_vsock_virtio_transport.ko
-- 
GitLab


From abaefd378cee4a6285a40b11a91022ce0a8e3f18 Mon Sep 17 00:00:00 2001
From: xieliujie <xieliujie@oppo.com>
Date: Thu, 25 Nov 2021 10:04:33 +0800
Subject: [PATCH 2628/4878] ANDROID: dma-buf: heaps: fix dma-buf heap pool
 pages stat

this critical region should be protected by pool->mutex.

Bug: 207658347
Fixes: e7dac4c3231c ("ANDROID: dma-buf: heaps: Add a shrinker controlled page pool")
Signed-off-by: liuhailong <liuhailong@oppo.com>
Signed-off-by: xieliujie <xieliujie@oppo.com>
Change-Id: I6f129926c96176258a965964c24602fc647db61e
Signed-off-by: Hridya Valsaraju <hridya@google.com>
---
 drivers/dma-buf/heaps/page_pool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/heaps/page_pool.c b/drivers/dma-buf/heaps/page_pool.c
index 7c34a1ba48bba..b79e737bac957 100644
--- a/drivers/dma-buf/heaps/page_pool.c
+++ b/drivers/dma-buf/heaps/page_pool.c
@@ -44,9 +44,9 @@ static void dmabuf_page_pool_add(struct dmabuf_page_pool *pool, struct page *pag
 	mutex_lock(&pool->mutex);
 	list_add_tail(&page->lru, &pool->items[index]);
 	pool->count[index]++;
-	mutex_unlock(&pool->mutex);
 	mod_node_page_state(page_pgdat(page), NR_KERNEL_MISC_RECLAIMABLE,
 			    1 << pool->order);
+	mutex_unlock(&pool->mutex);
 }
 
 static struct page *dmabuf_page_pool_remove(struct dmabuf_page_pool *pool, int index)
-- 
GitLab


From aae548daec7744007da8d980f1ba4f608b66f959 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Wed, 12 Jan 2022 19:29:56 +0000
Subject: [PATCH 2629/4878] ANDROID: fuse-bpf: Support inotify

Test: fuse_test, atest CtsOsTestCases:android.os.cts.FileObserverTest
pass
Bug: 202785178
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Alessio Balsini <balsini@google.com>
Change-Id: I789238489899a69691e0def1a49288227e62461b
-- 
GitLab


From 53c77d7a8e19fda37d3f001aa5d3a355845f700b Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Tue, 23 Jan 2018 15:02:50 -0800
Subject: [PATCH 2630/4878] ANDROID: fsnotify: Notify lower fs of open

If the filesystem being watched supports d_canonical_path,
notify the lower filesystem of the open as well.

Bug: 70706497
Fixes: f37e05049bf8 ("ANDROID: vfs: d_canonical_path for stacked FS")
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Alessio Balsini <balsini@google.com>

Change-Id: I2b1739e068afbaf5eb39950516072bff8345ebfe
-- 
GitLab


From b6f28f63774602ecda0f09f7062a80ba86322b7a Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Wed, 12 Jan 2022 19:29:56 +0000
Subject: [PATCH 2631/4878] ANDROID: fuse-bpf: Support inotify

Test: fuse_test, atest CtsOsTestCases:android.os.cts.FileObserverTest
Bug: 202785178
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Alessio Balsini <balsini@google.com>
Change-Id: I88719a8ab23c2042fb8f50462f023e247aa4b6c3
---
 fs/fuse/backing.c                             | 23 ++++++++++
 fs/fuse/dir.c                                 | 12 +++++
 fs/fuse/fuse_i.h                              | 10 ++++
 .../selftests/filesystems/fuse/fuse_test.c    | 46 +++++++++++++++++++
 .../selftests/filesystems/fuse/test_bpf.c     |  8 ++++
 .../selftests/filesystems/fuse/test_fuse.h    | 11 +++++
 6 files changed, 110 insertions(+)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index d201e59a70861..8f9f4e1460233 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1026,6 +1026,29 @@ void *fuse_revalidate_finalize(struct fuse_args *fa, struct inode *dir,
 	return 0;
 }
 
+int fuse_canonical_path_initialize(struct fuse_args *fa,
+				   struct fuse_dummy_io *fdi,
+				   const struct path *path,
+				   struct path *canonical_path)
+{
+	fa->opcode = FUSE_CANONICAL_PATH;
+	return 0;
+}
+
+int fuse_canonical_path_backing(struct fuse_args *fa, const struct path *path,
+				struct path *canonical_path)
+{
+	get_fuse_backing_path(path->dentry, canonical_path);
+	return 0;
+}
+
+void *fuse_canonical_path_finalize(struct fuse_args *fa,
+				   const struct path *path,
+				   struct path *canonical_path)
+{
+	return NULL;
+}
+
 int fuse_mknod_initialize(
 		struct fuse_args *fa, struct fuse_mknod_in *fmi,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index f5f985c4600e5..a6e0a3a270074 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -421,6 +421,18 @@ static void fuse_dentry_canonical_path(const struct path *path,
 	char *path_name;
 	int err;
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_dummy_io,
+			       fuse_canonical_path_initialize,
+			       fuse_canonical_path_backing,
+			       fuse_canonical_path_finalize, path,
+			       canonical_path);
+	if (fer.ret)
+		return;
+#endif
+
 	path_name = (char *)get_zeroed_page(GFP_KERNEL);
 	if (!path_name)
 		goto default_path;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 282afaea990cb..757086781819a 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1523,6 +1523,16 @@ int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
 void *fuse_revalidate_finalize(struct fuse_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags);
 
+int fuse_canonical_path_initialize(struct fuse_args *fa,
+				   struct fuse_dummy_io *fdi,
+				   const struct path *path,
+				   struct path *canonical_path);
+int fuse_canonical_path_backing(struct fuse_args *fa, const struct path *path,
+				struct path *canonical_path);
+void *fuse_canonical_path_finalize(struct fuse_args *fa,
+				   const struct path *path,
+				   struct path *canonical_path);
+
 struct fuse_getattr_io {
 	struct fuse_getattr_in fgi;
 	struct fuse_attr_out fao;
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 3f1e32479152d..3b3f83aab9e18 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <unistd.h>
 
+#include <sys/inotify.h>
 #include <sys/mman.h>
 #include <sys/mount.h>
 #include <sys/syscall.h>
@@ -174,6 +175,9 @@ static int basic_test(const char *mount_dir)
 			.open_flags = open_in->flags,
 		}));
 
+		TESTFUSEINNULL(FUSE_CANONICAL_PATH);
+		TESTFUSEOUTREAD("ignored", 7);
+
 		TESTFUSEIN(FUSE_READ, read_in);
 		TESTFUSEOUTREAD(test_data, strlen(test_data));
 
@@ -626,6 +630,9 @@ static int bpf_test_creat(const char *mount_dir)
 			.open_flags = create_in->flags,
 			}));
 
+		TESTFUSEINNULL(FUSE_CANONICAL_PATH);
+		TESTFUSEOUTREAD("ignored", 7);
+
 		TESTFUSEIN(FUSE_FLUSH, flush_in);
 		TESTFUSEOUTEMPTY();
 
@@ -1367,6 +1374,44 @@ out:
 	return result;
 }
 
+static int inotify_test(const char *mount_dir)
+{
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int fuse_dev = -1;
+	struct s dir;
+	int inotify_fd = -1;
+	int watch;
+	int fd = -1;
+	char buffer[sizeof(struct inotify_event) + NAME_MAX + 1];
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(mount_fuse(mount_dir, -1, src_fd, &fuse_dev), 0);
+
+	TEST(inotify_fd = inotify_init1(IN_CLOEXEC), inotify_fd != -1);
+	dir = s_path(s(mount_dir), s("dir"));
+	TESTSYSCALL(mkdir(dir.s, 0777));
+	TEST(watch = inotify_add_watch(inotify_fd, dir.s, IN_CREATE), watch);
+	TEST(fd = s_creat(s_path(s(ft_src), s("dir/file")), 0777), fd != -1);
+	// buffer will be two struct lengths, as "file" gets rounded up to the
+	// next multiple of struct inotify_event
+	TESTEQUAL(read(inotify_fd, &buffer, sizeof(buffer)),
+		  sizeof(struct inotify_event) * 2);
+
+	result = TEST_SUCCESS;
+out:
+	close(fd);
+	s_unlink(s_path(s(ft_src), s("dir/file")));
+	close(inotify_fd);
+	rmdir(dir.s);
+	free(dir.s);
+	umount(mount_dir);
+	close(fuse_dev);
+	close(src_fd);
+	return result;
+}
+
 static int parse_options(int argc, char *const *argv)
 {
 	signed char c;
@@ -1468,6 +1513,7 @@ int main(int argc, char *argv[])
 		MAKE_TEST(bpf_test_alter_errcode_userspace),
 		MAKE_TEST(mmap_test),
 		MAKE_TEST(readdir_perms_test),
+		MAKE_TEST(inotify_test),
 	};
 #undef MAKE_TEST
 
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
index 29ef4e289b607..598bfd14301dd 100644
--- a/tools/testing/selftests/filesystems/fuse/test_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -329,6 +329,11 @@ int trace_test(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_CANONICAL_PATH | FUSE_PREFILTER: {
+		bpf_printk("canonical_path");
+		return FUSE_BPF_BACKING;
+	}
+
 	default:
 		bpf_printk("Unknown opcode %d", fa->opcode);
 		return 0;
@@ -384,6 +389,9 @@ int trace_hidden(struct fuse_args *fa)
 	//	bpf_printk("fallocate %d", fa->nodeid);
 		return FUSE_BPF_BACKING;
 
+	case FUSE_CANONICAL_PATH | FUSE_PREFILTER: {
+		return FUSE_BPF_BACKING;
+	}
 	default:
 		bpf_printk("Unknown opcode: %d", fa->opcode);
 		return 0;
diff --git a/tools/testing/selftests/filesystems/fuse/test_fuse.h b/tools/testing/selftests/filesystems/fuse/test_fuse.h
index 642d4fbee08fa..0929c3aca9ade 100644
--- a/tools/testing/selftests/filesystems/fuse/test_fuse.h
+++ b/tools/testing/selftests/filesystems/fuse/test_fuse.h
@@ -65,6 +65,17 @@ char *concat_file_name(const char *dir, const char *file);
 char *setup_mount_dir(const char *name);
 int delete_dir_tree(const char *dir_path, bool remove_root);
 
+#define TESTFUSEINNULL(_opcode)						\
+	do {								\
+		struct fuse_in_header *in_header =			\
+				(struct fuse_in_header *)bytes_in;	\
+		ssize_t res = read(fuse_dev, &bytes_in,			\
+			sizeof(bytes_in));				\
+									\
+		TESTEQUAL(in_header->opcode, _opcode);			\
+		TESTEQUAL(res, sizeof(*in_header));			\
+	} while (false)
+
 #define TESTFUSEIN(_opcode, in_struct)					\
 	do {								\
 		struct fuse_in_header *in_header =			\
-- 
GitLab


From b99f858e42d3aa6f205bc2fb51bd97b1c77d8f25 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Tue, 23 Jan 2018 15:02:50 -0800
Subject: [PATCH 2632/4878] ANDROID: fsnotify: Notify lower fs of open

If the filesystem being watched supports d_canonical_path,
notify the lower filesystem of the open as well.

Fixes: f37e05049bf8 ("ANDROID: vfs: d_canonical_path for stacked FS")
Bug: 70706497
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Signed-off-by: Alessio Balsini <balsini@google.com>
Change-Id: I7c9d210e8e6ee99928ad9db0b41ffc3ac3371dc0
---
 include/linux/fsnotify.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index f8acddcf54fb4..252790dd0b9f5 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -87,6 +87,25 @@ static inline int fsnotify_file(struct file *file, __u32 mask)
 	if (file->f_mode & FMODE_NONOTIFY)
 		return 0;
 
+	/*
+	 * Open calls notify early on, so lower file system must be notified
+	 */
+	if (mask == FS_OPEN) {
+		if (path->dentry->d_op &&
+		    path->dentry->d_op->d_canonical_path) {
+			struct path lower_path;
+			int ret;
+
+			path->dentry->d_op->d_canonical_path(path, &lower_path);
+			ret = fsnotify_parent(lower_path.dentry, mask,
+					      &lower_path, FSNOTIFY_EVENT_PATH);
+			path_put(&lower_path);
+
+			if (ret)
+				return ret;
+		}
+	}
+
 	return fsnotify_parent(path->dentry, mask, path, FSNOTIFY_EVENT_PATH);
 }
 
-- 
GitLab


From c9c83164bf8fbc1d78ef1a3ede8b94c6f8a1d8aa Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 13 Jan 2022 12:53:05 -0800
Subject: [PATCH 2633/4878] ANDROID: fsnotify: Fix Open Check

The previous version would miss if FS_OPEN_EXEC was set.

Change-Id: I52d55bed2ca029f8fae8576f831a0621f2d02804
Fixes: b99f858e42d3 ("ANDROID: fsnotify: Notify lower fs of open")
Bug: 70706497
Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 include/linux/fsnotify.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 252790dd0b9f5..156aedf05fa3f 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -90,7 +90,7 @@ static inline int fsnotify_file(struct file *file, __u32 mask)
 	/*
 	 * Open calls notify early on, so lower file system must be notified
 	 */
-	if (mask == FS_OPEN) {
+	if (mask & FS_OPEN) {
 		if (path->dentry->d_op &&
 		    path->dentry->d_op->d_canonical_path) {
 			struct path lower_path;
-- 
GitLab


From 4377d9dea9b2006e77ad82fd0c8120e40bc7d812 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 14 Jan 2022 09:20:41 +0000
Subject: [PATCH 2634/4878] ANDROID: KVM: arm64: Remove kernel-doc in S2MPU
 driver

Comments in S2MPU driver code were mistakenly prefixed with /**,
denoting a kernel-doc comment. Since these do not match kernel-doc
syntax, replace them with regular /* comments.

Test: n/a
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I81ed57f22c2cf9eaa5761f11b4f3b8ce1800f457
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 2 +-
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 6 +++---
 arch/arm64/kvm/iommu/s2mpu.c          | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index fa10bc754f03b..6b92186730316 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -268,7 +268,7 @@ static inline bool __is_smpt_uniform(u32 *smpt, enum mpt_prot prot)
 	return true;
 }
 
-/**
+/*
  * Set protection bits of FMPT/SMPT in a given range.
  * Returns flags specifying whether L1/L2 changes need to be made visible
  * to the device.
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 4d6e6a0ff94cc..9d3343fd0a774 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -157,7 +157,7 @@ static void __set_l1entry_l2table_addr(struct s2mpu *dev, unsigned int gb,
 	       dev->va + REG_NS_L1ENTRY_L2TABLE_ADDR(vid, gb));
 }
 
-/**
+/*
  * Initialize S2MPU device and set all GB regions to 1G granularity with
  * given protection bits.
  */
@@ -176,7 +176,7 @@ static void initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
 	__set_control_regs(dev);
 }
 
-/**
+/*
  * Initialize S2MPU device, set L2 table addresses and configure L1TABLE_ATTR
  * registers according to the given MPT struct.
  */
@@ -199,7 +199,7 @@ static void initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
 	__set_control_regs(dev);
 }
 
-/**
+/*
  * Set MPT protection bits set to 'prot' in the give byte range (page-aligned).
  * Update currently powered S2MPUs.
  */
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 12b387b351bce..00111f237de38 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -134,7 +134,7 @@ static int s2mpu_probe_v9(struct platform_device *pdev, void __iomem *kaddr,
 	return 0;
 }
 
-/**
+/*
  * Parse interrupt information from DT and if found, register IRQ handler.
  * This is considered optional and will not fail even if the initialization is
  * unsuccessful. In that case the IRQ will remain masked.
-- 
GitLab


From e149939df25f9677eab1f996b0aac7575ca2995e Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 10 Jan 2022 11:17:54 +0000
Subject: [PATCH 2635/4878] ANDROID: KVM: arm64: Wait on S2MPU.STATUS after
 invalidation

The S2MPU must wait for a v9 device to finish invalidation before
accessing its SFRs. Failure to do so can result in memory transaction
timeouts.

Add a loop that polls the STATUS register while the return value has
the BUSY and ON_INVALIDATING bits set.

Test: builds, boots
Bug: 190463801
Bug: 206761586
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I00891dc3a8ad185d29757b8622a053a96237b803
---
 arch/arm64/include/asm/kvm_s2mpu.h    |  4 ++++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 21 +++++++++++++++++++--
 2 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 6b92186730316..3d541accf9825 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -24,6 +24,7 @@
 #define REG_NS_INTERRUPT_ENABLE_PER_VID_SET	0x20
 #define REG_NS_INTERRUPT_CLEAR			0x2c
 #define REG_NS_VERSION				0x60
+#define REG_NS_STATUS				0x68
 #define REG_NS_NUM_CONTEXT			0x100
 #define REG_NS_CONTEXT_CFG_VALID_VID		0x104
 #define REG_NS_ALL_INVALIDATION			0x1000
@@ -67,6 +68,9 @@
 						 VERSION_MINOR_ARCH_VER_MASK | \
 						 VERSION_REV_ARCH_VER_MASK)
 
+#define STATUS_BUSY				BIT(0)
+#define STATUS_ON_INVALIDATING			BIT(1)
+
 #define NUM_CONTEXT_MASK			GENMASK(3, 0)
 
 #define CONTEXT_CFG_VALID_VID_CTX_VALID(ctx)	BIT((4 * (ctx)) + 3)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 9d3343fd0a774..ab4d8aefcb3cf 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -113,10 +113,26 @@ static void __set_control_regs(struct s2mpu *dev)
 	writel_relaxed(ctrl0, dev->va + REG_NS_CTRL0);
 }
 
+/* Poll the given SFR as long as its value has all bits of a given mask set. */
+static void __wait_while(void __iomem *addr, u32 mask)
+{
+	while ((readl_relaxed(addr) & mask) == mask)
+		continue;
+}
+
+static void __wait_for_invalidation_complete(struct s2mpu *dev)
+{
+	/* Must not access SFRs while S2MPU is busy invalidating (v9 only). */
+	if (is_version(dev, S2MPU_VERSION_9)) {
+		__wait_while(dev->va + REG_NS_STATUS,
+			     STATUS_BUSY | STATUS_ON_INVALIDATING);
+	}
+}
+
 static void __all_invalidation(struct s2mpu *dev)
 {
-	writel_relaxed(INVALIDATION_INVALIDATE,
-		       dev->va + REG_NS_ALL_INVALIDATION);
+	writel_relaxed(INVALIDATION_INVALIDATE, dev->va + REG_NS_ALL_INVALIDATION);
+	__wait_for_invalidation_complete(dev);
 }
 
 static void __range_invalidation(struct s2mpu *dev, phys_addr_t first_byte,
@@ -128,6 +144,7 @@ static void __range_invalidation(struct s2mpu *dev, phys_addr_t first_byte,
 	writel_relaxed(start_ppn, dev->va + REG_NS_RANGE_INVALIDATION_START_PPN);
 	writel_relaxed(end_ppn, dev->va + REG_NS_RANGE_INVALIDATION_END_PPN);
 	writel_relaxed(INVALIDATION_INVALIDATE, dev->va + REG_NS_RANGE_INVALIDATION);
+	__wait_for_invalidation_complete(dev);
 }
 
 static void __set_l1entry_attr_with_prot(struct s2mpu *dev, unsigned int gb,
-- 
GitLab


From 9ad5e201c7a4375d04045099c8d0862ef5b54854 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 14 Jan 2022 12:50:38 +0000
Subject: [PATCH 2636/4878] FROMLIST: KVM: arm64: pkvm: Use the mm_ops
 indirection for cache maintenance

CMOs issued from EL2 cannot directly use the kernel helpers,
as EL2 doesn't have a mapping of the guest pages. Oops.

Instead, use the mm_ops indirection to use helpers that will
perform a mapping at EL2 and allow the CMO to be effective.

Fixes: 25aa28691bb9 ("KVM: arm64: Move guest CMOs to the fault handlers")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209777660
Link: https://lore.kernel.org/r/20220114125038.1336965-1-maz@kernel.org
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I8cd221f7c89a20de28f0bea422641622b8320c1f
---
 arch/arm64/kvm/hyp/pgtable.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 844a6f003fd54..2cb3867eb7c2b 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -983,13 +983,9 @@ static int stage2_unmap_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	 */
 	stage2_put_pte(ptep, mmu, addr, level, mm_ops);
 
-	if (need_flush) {
-		kvm_pte_t *pte_follow = kvm_pte_follow(pte, mm_ops);
-
-		dcache_clean_inval_poc((unsigned long)pte_follow,
-				    (unsigned long)pte_follow +
-					    kvm_granule_size(level));
-	}
+	if (need_flush && mm_ops->dcache_clean_inval_poc)
+		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(pte, mm_ops),
+					       kvm_granule_size(level));
 
 	if (childp)
 		mm_ops->put_page(childp);
@@ -1151,15 +1147,13 @@ static int stage2_flush_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	struct kvm_pgtable *pgt = arg;
 	struct kvm_pgtable_mm_ops *mm_ops = pgt->mm_ops;
 	kvm_pte_t pte = *ptep;
-	kvm_pte_t *pte_follow;
 
 	if (!kvm_pte_valid(pte) || !stage2_pte_cacheable(pgt, pte))
 		return 0;
 
-	pte_follow = kvm_pte_follow(pte, mm_ops);
-	dcache_clean_inval_poc((unsigned long)pte_follow,
-			    (unsigned long)pte_follow +
-				    kvm_granule_size(level));
+	if (mm_ops->dcache_clean_inval_poc)
+		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(pte, mm_ops),
+					       kvm_granule_size(level));
 	return 0;
 }
 
-- 
GitLab


From c9f3c00ed4fdd25006884832b697fa577f85334f Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 18 Oct 2021 18:43:07 +0100
Subject: [PATCH 2637/4878] ANDROID: KVM: arm64: Implement do_donate() helper
 for donating memory

Transferring ownership information of a memory region from one component
to another can be achieved using a "donate" operation, which results
in the previous owner losing access to the underlying pages entirely.

Implement a do_donate() helper, along the same lines as do_{un,}share,
to provide this functionality for the host-to-hyp case.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I426f8b068450e7e6b93ba05a0aea6ce8f93e6bf7
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 123 ++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index ca46643683756..ff9532cbe6ff5 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -27,6 +27,7 @@ struct host_kvm host_kvm;
 
 static struct hyp_pool host_s2_pool;
 
+const u8 pkvm_host_id = 0;
 const u8 pkvm_hyp_id = 1;
 
 static void host_lock_component(void)
@@ -469,6 +470,23 @@ struct pkvm_mem_share {
 	const enum kvm_pgtable_prot		completer_prot;
 };
 
+struct pkvm_mem_donation {
+	const struct pkvm_mem_transition	tx;
+};
+
+static u8 completer_owner_id(const struct pkvm_mem_transition *tx)
+{
+	switch (tx->completer.id) {
+	case PKVM_ID_HOST:
+		return pkvm_host_id;
+	case PKVM_ID_HYP:
+		return pkvm_hyp_id;
+	default:
+		WARN_ON(1);
+		return -1;
+	}
+}
+
 struct check_walk_data {
 	enum pkvm_page_state	desired;
 	enum pkvm_page_state	(*get_page_state)(kvm_pte_t pte);
@@ -568,6 +586,16 @@ static int host_initiate_unshare(u64 *completer_addr,
 	return __host_set_page_state_range(addr, size, PKVM_PAGE_OWNED);
 }
 
+static int host_initiate_donation(u64 *completer_addr,
+				  const struct pkvm_mem_transition *tx)
+{
+	u8 owner_id = completer_owner_id(tx);
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	*completer_addr = tx->initiator.host.completer_addr;
+	return host_stage2_set_owner_locked(tx->initiator.addr, size, owner_id);
+}
+
 static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
 {
 	if (!kvm_pte_valid(pte))
@@ -619,6 +647,16 @@ static int hyp_ack_unshare(u64 addr, const struct pkvm_mem_transition *tx)
 					    PKVM_PAGE_SHARED_BORROWED);
 }
 
+static int hyp_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (__hyp_ack_skip_pgtable_check(tx))
+		return 0;
+
+	return __hyp_check_page_state_range(addr, size, PKVM_NOPAGE);
+}
+
 static int hyp_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 			      enum kvm_pgtable_prot perms)
 {
@@ -637,6 +675,15 @@ static int hyp_complete_unshare(u64 addr, const struct pkvm_mem_transition *tx)
 	return (ret != size) ? -EFAULT : 0;
 }
 
+static int hyp_complete_donation(u64 addr,
+				 const struct pkvm_mem_transition *tx)
+{
+	void *start = (void *)addr, *end = start + (tx->nr_pages * PAGE_SIZE);
+	enum kvm_pgtable_prot prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_OWNED);
+
+	return pkvm_create_mappings_locked(start, end, prot);
+}
+
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -789,6 +836,82 @@ static int do_unshare(struct pkvm_mem_share *share)
 	return WARN_ON(__do_unshare(share));
 }
 
+static int check_donation(struct pkvm_mem_donation *donation)
+{
+	const struct pkvm_mem_transition *tx = &donation->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_request_owned_transition(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id){
+	case PKVM_ID_HYP:
+		ret = hyp_ack_donation(completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int __do_donate(struct pkvm_mem_donation *donation)
+{
+	const struct pkvm_mem_transition *tx = &donation->tx;
+	u64 completer_addr;
+	int ret;
+
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		ret = host_initiate_donation(&completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	switch (tx->completer.id){
+	case PKVM_ID_HYP:
+		ret = hyp_complete_donation(completer_addr, tx);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+/*
+ * do_donate():
+ *
+ * The page owner transfers ownership to another component, losing access
+ * as a consequence.
+ *
+ * Initiator: OWNED	=> NOPAGE
+ * Completer: NOPAGE	=> OWNED
+ */
+static int do_donate(struct pkvm_mem_donation *donation)
+{
+	int ret;
+
+	ret = check_donation(donation);
+	if (ret)
+		return ret;
+
+	return WARN_ON(__do_donate(donation));
+}
+
 int __pkvm_host_share_hyp(u64 pfn)
 {
 	int ret;
-- 
GitLab


From 0c7255854e726df520600d5cfedb6b9738ccbe8a Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 18 Oct 2021 21:48:28 +0100
Subject: [PATCH 2638/4878] ANDROID: KVM: arm64: Implement hyp -> host memory
 donation

Returning memory ownership of KVM metadata pages to the host once it is
no longer required (i.e. after VM teardown) can be achieved using a
series of memory donations from the hypervisor to the host.

Implement hyp-to-host memory donation.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I7c77bf6dae0ee7f96cd032d06b1ced5502530786
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 60 +++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index ff9532cbe6ff5..8f0710d64572e 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -457,6 +457,9 @@ struct pkvm_mem_transition {
 				/* Address in the completer's address space */
 				u64	completer_addr;
 			} host;
+			struct {
+				u64	completer_addr;
+			} hyp;
 		};
 	} initiator;
 
@@ -596,6 +599,30 @@ static int host_initiate_donation(u64 *completer_addr,
 	return host_stage2_set_owner_locked(tx->initiator.addr, size, owner_id);
 }
 
+static bool __host_ack_skip_pgtable_check(const struct pkvm_mem_transition *tx)
+{
+	return !(IS_ENABLED(CONFIG_NVHE_EL2_DEBUG) ||
+		 tx->initiator.id != PKVM_ID_HYP);
+}
+
+static int host_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (__host_ack_skip_pgtable_check(tx))
+		return 0;
+
+	return __host_check_page_state_range(addr, size, PKVM_NOPAGE);
+}
+
+static int host_complete_donation(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u8 host_id = completer_owner_id(tx);
+
+	return host_stage2_set_owner_locked(addr, size, host_id);
+}
+
 static enum pkvm_page_state hyp_get_page_state(kvm_pte_t pte)
 {
 	if (!kvm_pte_valid(pte))
@@ -616,6 +643,27 @@ static int __hyp_check_page_state_range(u64 addr, u64 size,
 	return check_page_state_range(&pkvm_pgtable, addr, size, &d);
 }
 
+static int hyp_request_donation(u64 *completer_addr,
+				const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+
+	*completer_addr = tx->initiator.hyp.completer_addr;
+	return __hyp_check_page_state_range(addr, size, PKVM_PAGE_OWNED);
+}
+
+static int hyp_initiate_donation(u64 *completer_addr,
+				 const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	int ret;
+
+	*completer_addr = tx->initiator.hyp.completer_addr;
+	ret = kvm_pgtable_hyp_unmap(&pkvm_pgtable, tx->initiator.addr, size);
+	return (ret != size) ? -EFAULT : 0;
+}
+
 static bool __hyp_ack_skip_pgtable_check(const struct pkvm_mem_transition *tx)
 {
 	return !(IS_ENABLED(CONFIG_NVHE_EL2_DEBUG) ||
@@ -846,6 +894,9 @@ static int check_donation(struct pkvm_mem_donation *donation)
 	case PKVM_ID_HOST:
 		ret = host_request_owned_transition(&completer_addr, tx);
 		break;
+	case PKVM_ID_HYP:
+		ret = hyp_request_donation(&completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -854,6 +905,9 @@ static int check_donation(struct pkvm_mem_donation *donation)
 		return ret;
 
 	switch (tx->completer.id){
+	case PKVM_ID_HOST:
+		ret = host_ack_donation(completer_addr, tx);
+		break;
 	case PKVM_ID_HYP:
 		ret = hyp_ack_donation(completer_addr, tx);
 		break;
@@ -874,6 +928,9 @@ static int __do_donate(struct pkvm_mem_donation *donation)
 	case PKVM_ID_HOST:
 		ret = host_initiate_donation(&completer_addr, tx);
 		break;
+	case PKVM_ID_HYP:
+		ret = hyp_initiate_donation(&completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -882,6 +939,9 @@ static int __do_donate(struct pkvm_mem_donation *donation)
 		return ret;
 
 	switch (tx->completer.id){
+	case PKVM_ID_HOST:
+		ret = host_complete_donation(completer_addr, tx);
+		break;
 	case PKVM_ID_HYP:
 		ret = hyp_complete_donation(completer_addr, tx);
 		break;
-- 
GitLab


From feacf4afa1d674ddceff36be0f324b2589ed2e82 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 18 Oct 2021 21:32:56 +0100
Subject: [PATCH 2639/4878] ANDROID: KVM: arm64: Add __pkvm_host_donate_hyp()

The host will soon need to donate memory pages to the hypervisor to
store VM metadata, so provide a helper function allowing host-to-hyp
memory donations.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I246978d81bd5301dae13c1f9d3e546334ecd88ad
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 32 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 80e99836eac79..726e37d57af6b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -56,6 +56,7 @@ extern const u8 pkvm_hyp_id;
 int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
 int __pkvm_host_unshare_hyp(u64 pfn);
+int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 8f0710d64572e..052d59b5b9e4d 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -1037,3 +1037,35 @@ int __pkvm_host_unshare_hyp(u64 pfn)
 
 	return ret;
 }
+
+int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 hyp_addr = (u64)__hyp_va(host_addr);
+	struct pkvm_mem_donation donation = {
+		.tx	= {
+			.nr_pages	= nr_pages,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = hyp_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HYP,
+			},
+		},
+	};
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = do_donate(&donation);
+
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From 7fbb472eb091419cb4d8f177765184711048e5c9 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 18 Oct 2021 21:50:22 +0100
Subject: [PATCH 2640/4878] ANDROID: KVM: arm64: Add __pkvm_hyp_donate_host()

The hypervisor will soon need to donate memory pages to the host to
return pages backing guest VM metadata during guest teardown, so provide
a helper allowing hyp-to-host memory donations.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I3013e8f69e9d26fae751bb81cc1e66253f0f5039
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 32 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 726e37d57af6b..c1cea5a5dbc4b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -57,6 +57,7 @@ int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
 int __pkvm_host_unshare_hyp(u64 pfn);
 int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
+int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 052d59b5b9e4d..4b7a5cc584188 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -1069,3 +1069,35 @@ int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages)
 
 	return ret;
 }
+
+int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 hyp_addr = (u64)__hyp_va(host_addr);
+	struct pkvm_mem_donation donation = {
+		.tx	= {
+			.nr_pages	= nr_pages,
+			.initiator	= {
+				.id	= PKVM_ID_HYP,
+				.addr	= hyp_addr,
+				.hyp	= {
+					.completer_addr = host_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HOST,
+			},
+		},
+	};
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = do_donate(&donation);
+
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From 3cb7feab5fcf78331b6e0e47f45c6f1d4d9944f1 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 13:44:55 +0100
Subject: [PATCH 2641/4878] ANDROID: KVM: arm64: Move hyp refcount manipulation
 helpers

We will soon need to manipulate struct hyp_page refcounts from outside
page_alloc.c, so move the helpers to a header file.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I5cfeeb1e3e6a61cbba70c242cf25e035b26149e7
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/memory.h | 18 ++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/page_alloc.c     | 19 -------------------
 2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h
index 083b401e5840e..5e2d7fc59747b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/memory.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h
@@ -46,4 +46,22 @@ static inline int hyp_page_count(void *addr)
 	return p->refcount;
 }
 
+static inline void hyp_page_ref_inc(struct hyp_page *p)
+{
+	BUG_ON(p->refcount == USHRT_MAX);
+	p->refcount++;
+}
+
+static inline int hyp_page_ref_dec_and_test(struct hyp_page *p)
+{
+	BUG_ON(!p->refcount);
+	p->refcount--;
+	return (p->refcount == 0);
+}
+
+static inline void hyp_set_page_refcounted(struct hyp_page *p)
+{
+	BUG_ON(p->refcount);
+	p->refcount = 1;
+}
 #endif /* __KVM_HYP_MEMORY_H */
diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index 543cad6c376a2..38ea4e1aa72f4 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -144,25 +144,6 @@ static struct hyp_page *__hyp_extract_page(struct hyp_pool *pool,
 	return p;
 }
 
-static inline void hyp_page_ref_inc(struct hyp_page *p)
-{
-	BUG_ON(p->refcount == USHRT_MAX);
-	p->refcount++;
-}
-
-static inline int hyp_page_ref_dec_and_test(struct hyp_page *p)
-{
-	BUG_ON(!p->refcount);
-	p->refcount--;
-	return (p->refcount == 0);
-}
-
-static inline void hyp_set_page_refcounted(struct hyp_page *p)
-{
-	BUG_ON(p->refcount);
-	p->refcount = 1;
-}
-
 static void __hyp_put_page(struct hyp_pool *pool, struct hyp_page *p)
 {
 	if (hyp_page_ref_dec_and_test(p))
-- 
GitLab


From b6a704bc581de5c9e0e4d83d42df9247a22de039 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 27 May 2021 15:30:01 +0000
Subject: [PATCH 2642/4878] ANDROID: KVM: arm64: Back hyp_vmemmap for all of
 memory

The EL2 vmemmap in nVHE Protected mode is currently very sparse: only
memory pages owned by the hypervisor itself have a matching struct
hyp_page. But since the size of these structs has been reduced
significantly, it appears that we can afford backing the vmemmap for all
of memory.

This will simplify a lot memory tracking as the hypervisor will have a
place to store metadata (e.g. refcounts) that wouldn't otherwise fit in
the 4 SW bits we have in the host stage-2 page-table for instance.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Idaaf67ae6401765143fd7fe4b12f8f53e9cbf64b
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pkvm.h    | 26 +++++++++++++++++++++++
 arch/arm64/kvm/hyp/include/nvhe/mm.h | 14 +------------
 arch/arm64/kvm/hyp/nvhe/mm.c         | 31 ++++++++++++++++++++++++----
 arch/arm64/kvm/hyp/nvhe/page_alloc.c |  4 +---
 arch/arm64/kvm/hyp/nvhe/setup.c      |  7 +++----
 arch/arm64/kvm/pkvm.c                | 18 ++--------------
 6 files changed, 60 insertions(+), 40 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 9f4ad2a8df59c..8f7b8a2314bbb 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -14,6 +14,32 @@
 extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
 extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
 
+static inline unsigned long
+hyp_vmemmap_memblock_size(struct memblock_region *reg, size_t vmemmap_entry_size)
+{
+	unsigned long nr_pages = reg->size >> PAGE_SHIFT;
+	unsigned long start, end;
+
+	start = (reg->base >> PAGE_SHIFT) * vmemmap_entry_size;
+	end = start + nr_pages * vmemmap_entry_size;
+	start = ALIGN_DOWN(start, PAGE_SIZE);
+	end = ALIGN(end, PAGE_SIZE);
+
+	return end - start;
+}
+
+static inline unsigned long hyp_vmemmap_pages(size_t vmemmap_entry_size)
+{
+	unsigned long res = 0, i;
+
+	for (i = 0; i < kvm_nvhe_sym(hyp_memblock_nr); i++) {
+		res += hyp_vmemmap_memblock_size(&kvm_nvhe_sym(hyp_memory)[i],
+						 vmemmap_entry_size);
+	}
+
+	return res >> PAGE_SHIFT;
+}
+
 static inline unsigned long __hyp_pgtable_max_pages(unsigned long nr_pages)
 {
 	unsigned long total = 0, i;
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h
index 2d08510c6cc1b..73309ccc192ec 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h
@@ -15,23 +15,11 @@ extern hyp_spinlock_t pkvm_pgd_lock;
 
 int hyp_create_idmap(u32 hyp_va_bits);
 int hyp_map_vectors(void);
-int hyp_back_vmemmap(phys_addr_t phys, unsigned long size, phys_addr_t back);
+int hyp_back_vmemmap(phys_addr_t back);
 int pkvm_cpu_set_vector(enum arm64_hyp_spectre_vector slot);
 int pkvm_create_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
 int pkvm_create_mappings_locked(void *from, void *to, enum kvm_pgtable_prot prot);
 unsigned long __pkvm_create_private_mapping(phys_addr_t phys, size_t size,
 					    enum kvm_pgtable_prot prot);
 
-static inline void hyp_vmemmap_range(phys_addr_t phys, unsigned long size,
-				     unsigned long *start, unsigned long *end)
-{
-	unsigned long nr_pages = size >> PAGE_SHIFT;
-	struct hyp_page *p = hyp_phys_to_page(phys);
-
-	*start = (unsigned long)p;
-	*end = *start + nr_pages * sizeof(struct hyp_page);
-	*start = ALIGN_DOWN(*start, PAGE_SIZE);
-	*end = ALIGN(*end, PAGE_SIZE);
-}
-
 #endif /* __KVM_HYP_MM_H */
diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 526a7d6fa86fb..808a499189e5d 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -105,13 +105,36 @@ int pkvm_create_mappings(void *from, void *to, enum kvm_pgtable_prot prot)
 	return ret;
 }
 
-int hyp_back_vmemmap(phys_addr_t phys, unsigned long size, phys_addr_t back)
+int hyp_back_vmemmap(phys_addr_t back)
 {
-	unsigned long start, end;
+	unsigned long i, start, size, end = 0;
+	int ret;
 
-	hyp_vmemmap_range(phys, size, &start, &end);
+	for (i = 0; i < hyp_memblock_nr; i++) {
+		start = hyp_memory[i].base;
+		start = ALIGN_DOWN((u64)hyp_phys_to_page(start), PAGE_SIZE);
+		/*
+		 * The begining of the hyp_vmemmap region for the current
+		 * memblock may already be backed by the page backing the end
+		 * the previous region, so avoid mapping it twice.
+		 */
+		start = max(start, end);
+
+		end = hyp_memory[i].base + hyp_memory[i].size;
+		end = PAGE_ALIGN((u64)hyp_phys_to_page(end));
+		if (start >= end)
+			continue;
+
+		size = end - start;
+		ret = __pkvm_create_mappings(start, size, back, PAGE_HYP);
+		if (ret)
+			return ret;
+
+		memset(hyp_phys_to_virt(back), 0, size);
+		back += size;
+	}
 
-	return __pkvm_create_mappings(start, end - start, back, PAGE_HYP);
+	return 0;
 }
 
 static void *__hyp_bp_vect_base;
diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index 38ea4e1aa72f4..31c073dcf478e 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -230,10 +230,8 @@ int hyp_pool_init(struct hyp_pool *pool, u64 pfn, unsigned int nr_pages,
 
 	/* Init the vmemmap portion */
 	p = hyp_phys_to_page(phys);
-	for (i = 0; i < nr_pages; i++) {
-		p[i].order = 0;
+	for (i = 0; i < nr_pages; i++)
 		hyp_set_page_refcounted(&p[i]);
-	}
 
 	/* Attach the unused pages to the buddy tree */
 	for (i = reserved_pages; i < nr_pages; i++)
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 0f58e7ea6610b..4c5c9dc11f939 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -31,12 +31,11 @@ static struct hyp_pool hpool;
 
 static int divide_memory_pool(void *virt, unsigned long size)
 {
-	unsigned long vstart, vend, nr_pages;
+	unsigned long nr_pages;
 
 	hyp_early_alloc_init(virt, size);
 
-	hyp_vmemmap_range(__hyp_pa(virt), size, &vstart, &vend);
-	nr_pages = (vend - vstart) >> PAGE_SHIFT;
+	nr_pages = hyp_vmemmap_pages(sizeof(struct hyp_page));
 	vmemmap_base = hyp_early_alloc_contig(nr_pages);
 	if (!vmemmap_base)
 		return -ENOMEM;
@@ -78,7 +77,7 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
 	if (ret)
 		return ret;
 
-	ret = hyp_back_vmemmap(phys, size, hyp_virt_to_phys(vmemmap_base));
+	ret = hyp_back_vmemmap(hyp_virt_to_phys(vmemmap_base));
 	if (ret)
 		return ret;
 
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 90ad4b84cbe8e..f3d29e5a7adef 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -53,7 +53,7 @@ static int __init register_memblock_regions(void)
 
 void __init kvm_hyp_reserve(void)
 {
-	u64 nr_pages, prev, hyp_mem_pages = 0;
+	u64 hyp_mem_pages = 0;
 	int ret;
 
 	if (!is_hyp_mode_available() || is_kernel_in_hyp_mode())
@@ -71,21 +71,7 @@ void __init kvm_hyp_reserve(void)
 
 	hyp_mem_pages += hyp_s1_pgtable_pages();
 	hyp_mem_pages += host_s2_pgtable_pages();
-
-	/*
-	 * The hyp_vmemmap needs to be backed by pages, but these pages
-	 * themselves need to be present in the vmemmap, so compute the number
-	 * of pages needed by looking for a fixed point.
-	 */
-	nr_pages = 0;
-	do {
-		prev = nr_pages;
-		nr_pages = hyp_mem_pages + prev;
-		nr_pages = DIV_ROUND_UP(nr_pages * STRUCT_HYP_PAGE_SIZE,
-					PAGE_SIZE);
-		nr_pages += __hyp_pgtable_max_pages(nr_pages);
-	} while (nr_pages != prev);
-	hyp_mem_pages += nr_pages;
+	hyp_mem_pages += hyp_vmemmap_pages(STRUCT_HYP_PAGE_SIZE);
 
 	/*
 	 * Try to allocate a PMD-aligned region to reduce TLB pressure once
-- 
GitLab


From 9bf22b9622ff0d0286d5e7ff8320ae8d88adaefe Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 13:43:08 +0100
Subject: [PATCH 2643/4878] ANDROID: KVM: arm64: Add helpers to pin memory
 shared with hyp

Add helpers allowing the hypervisor to check whether a range of pages
are currently shared by the host, and 'pin' them if so by blocking host
unshare operations until the memory has been unpinned. This will allow
the hypervisor to take references on host-provided data-structures
(struct kvm and such) and be guaranteed these pages will remain in a
stable state until it decides to release them, e.g. during guest
teardown.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I60ff204bd11e78e3e2ce21defc0d94ae916f5097
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  3 ++
 arch/arm64/kvm/hyp/include/nvhe/memory.h      |  7 ++-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 48 +++++++++++++++++++
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index c1cea5a5dbc4b..0e2e175486a01 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -65,6 +65,9 @@ int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id);
 int kvm_host_prepare_stage2(void *pgt_pool_base);
 void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt);
 
+int hyp_pin_shared_mem(void *from, void *to);
+void hyp_unpin_shared_mem(void *from, void *to);
+
 static __always_inline void __load_host_stage2(void)
 {
 	if (static_branch_likely(&kvm_protected_mode_initialized))
diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h
index 5e2d7fc59747b..2f719f7fa3842 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/memory.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h
@@ -52,10 +52,15 @@ static inline void hyp_page_ref_inc(struct hyp_page *p)
 	p->refcount++;
 }
 
-static inline int hyp_page_ref_dec_and_test(struct hyp_page *p)
+static inline void hyp_page_ref_dec(struct hyp_page *p)
 {
 	BUG_ON(!p->refcount);
 	p->refcount--;
+}
+
+static inline int hyp_page_ref_dec_and_test(struct hyp_page *p)
+{
+	hyp_page_ref_dec(p);
 	return (p->refcount == 0);
 }
 
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 4b7a5cc584188..52e909db1eff7 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -688,6 +688,9 @@ static int hyp_ack_unshare(u64 addr, const struct pkvm_mem_transition *tx)
 {
 	u64 size = tx->nr_pages * PAGE_SIZE;
 
+	if (tx->initiator.id == PKVM_ID_HOST && hyp_page_count((void *)addr))
+		return -EBUSY;
+
 	if (__hyp_ack_skip_pgtable_check(tx))
 		return 0;
 
@@ -1101,3 +1104,48 @@ int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages)
 
 	return ret;
 }
+
+int hyp_pin_shared_mem(void *from, void *to)
+{
+	u64 cur, start = ALIGN_DOWN((u64)from, PAGE_SIZE);
+	u64 end = PAGE_ALIGN((u64)to);
+	u64 size = end - start;
+	int ret;
+
+	host_lock_component();
+	hyp_lock_component();
+
+	ret = __host_check_page_state_range(__hyp_pa(start), size,
+					    PKVM_PAGE_SHARED_OWNED);
+	if (ret)
+		goto unlock;
+
+	ret = __hyp_check_page_state_range(start, size,
+					   PKVM_PAGE_SHARED_BORROWED);
+	if (ret)
+		goto unlock;
+
+	for (cur = start; cur < end; cur += PAGE_SIZE)
+		hyp_page_ref_inc(hyp_virt_to_page(cur));
+
+unlock:
+	hyp_unlock_component();
+	host_unlock_component();
+
+	return ret;
+}
+
+void hyp_unpin_shared_mem(void *from, void *to)
+{
+	u64 cur, start = ALIGN_DOWN((u64)from, PAGE_SIZE);
+	u64 end = PAGE_ALIGN((u64)to);
+
+	host_lock_component();
+	hyp_lock_component();
+
+	for (cur = start; cur < end; cur += PAGE_SIZE)
+		hyp_page_ref_dec(hyp_virt_to_page(cur));
+
+	hyp_unlock_component();
+	host_unlock_component();
+}
-- 
GitLab


From 6d78e34f755da49c922a11a119703313195f5c6c Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 12 Nov 2021 11:28:12 +0000
Subject: [PATCH 2644/4878] ANDROID: KVM: arm64: Split up nvhe/fixed_config.h

In preparation for using some of the pKVM fixed configuration register
definitions to filter the available VM CAPs in the host, split the
nvhe/fixed_config.h header so that the definitions can be shared
with the host, while keeping the hypervisor function prototypes in
the nvhe/ namespace.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I587bbcfebcc89633695fde9a5cfa1546fdca1018
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pkvm.h             | 186 ++++++++++++++++
 .../arm64/kvm/hyp/include/nvhe/fixed_config.h | 200 ------------------
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h        |  17 ++
 arch/arm64/kvm/hyp/nvhe/pkvm.c                |   2 +-
 arch/arm64/kvm/hyp/nvhe/setup.c               |   2 +-
 arch/arm64/kvm/hyp/nvhe/switch.c              |   2 +-
 arch/arm64/kvm/hyp/nvhe/sys_regs.c            |   4 +-
 7 files changed, 208 insertions(+), 205 deletions(-)
 delete mode 100644 arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
 create mode 100644 arch/arm64/kvm/hyp/include/nvhe/pkvm.h

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 8f7b8a2314bbb..f2d5175cdf05b 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -2,15 +2,201 @@
 /*
  * Copyright (C) 2020 - Google LLC
  * Author: Quentin Perret <qperret@google.com>
+ * Author: Fuad Tabba <tabba@google.com>
  */
 #ifndef __ARM64_KVM_PKVM_H__
 #define __ARM64_KVM_PKVM_H__
 
 #include <linux/memblock.h>
 #include <asm/kvm_pgtable.h>
+#include <asm/sysreg.h>
 
 #define HYP_MEMBLOCK_REGIONS 128
 
+/*
+ * Definitions for features to be allowed or restricted for guest virtual
+ * machines, depending on the mode KVM is running in and on the type of guest
+ * that is running.
+ *
+ * The ALLOW masks represent a bitmask of feature fields that are allowed
+ * without any restrictions as long as they are supported by the system.
+ *
+ * The RESTRICT_UNSIGNED masks, if present, represent unsigned fields for
+ * features that are restricted to support at most the specified feature.
+ *
+ * If a feature field is not present in either, than it is not supported.
+ *
+ * The approach taken for protected VMs is to allow features that are:
+ * - Needed by common Linux distributions (e.g., floating point)
+ * - Trivial to support, e.g., supporting the feature does not introduce or
+ * require tracking of additional state in KVM
+ * - Cannot be trapped or prevent the guest from using anyway
+ */
+
+/*
+ * Allow for protected VMs:
+ * - Floating-point and Advanced SIMD
+ * - Data Independent Timing
+ */
+#define PVM_ID_AA64PFR0_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64PFR0_FP) | \
+	ARM64_FEATURE_MASK(ID_AA64PFR0_ASIMD) | \
+	ARM64_FEATURE_MASK(ID_AA64PFR0_DIT) \
+	)
+
+/*
+ * Restrict to the following *unsigned* features for protected VMs:
+ * - AArch64 guests only (no support for AArch32 guests):
+ *	AArch32 adds complexity in trap handling, emulation, condition codes,
+ *	etc...
+ * - RAS (v1)
+ *	Supported by KVM
+ */
+#define PVM_ID_AA64PFR0_RESTRICT_UNSIGNED (\
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL0), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL2), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL3), ID_AA64PFR0_ELx_64BIT_ONLY) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_RAS), ID_AA64PFR0_RAS_V1) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Branch Target Identification
+ * - Speculative Store Bypassing
+ */
+#define PVM_ID_AA64PFR1_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64PFR1_BT) | \
+	ARM64_FEATURE_MASK(ID_AA64PFR1_SSBS) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Mixed-endian
+ * - Distinction between Secure and Non-secure Memory
+ * - Mixed-endian at EL0 only
+ * - Non-context synchronizing exception entry and exit
+ */
+#define PVM_ID_AA64MMFR0_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_BIGENDEL) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_SNSMEM) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_BIGENDEL0) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR0_EXS) \
+	)
+
+/*
+ * Restrict to the following *unsigned* features for protected VMs:
+ * - 40-bit IPA
+ * - 16-bit ASID
+ */
+#define PVM_ID_AA64MMFR0_RESTRICT_UNSIGNED (\
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64MMFR0_PARANGE), ID_AA64MMFR0_PARANGE_40) | \
+	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64MMFR0_ASID), ID_AA64MMFR0_ASID_16) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Hardware translation table updates to Access flag and Dirty state
+ * - Number of VMID bits from CPU
+ * - Hierarchical Permission Disables
+ * - Privileged Access Never
+ * - SError interrupt exceptions from speculative reads
+ * - Enhanced Translation Synchronization
+ */
+#define PVM_ID_AA64MMFR1_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_HADBS) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_VMIDBITS) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_HPD) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_PAN) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_SPECSEI) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR1_ETS) \
+	)
+
+/*
+ * Allow for protected VMs:
+ * - Common not Private translations
+ * - User Access Override
+ * - IESB bit in the SCTLR_ELx registers
+ * - Unaligned single-copy atomicity and atomic functions
+ * - ESR_ELx.EC value on an exception by read access to feature ID space
+ * - TTL field in address operations.
+ * - Break-before-make sequences when changing translation block size
+ * - E0PDx mechanism
+ */
+#define PVM_ID_AA64MMFR2_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_CNP) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_UAO) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_IESB) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_AT) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_IDS) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_TTL) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_BBM) | \
+	ARM64_FEATURE_MASK(ID_AA64MMFR2_E0PD) \
+	)
+
+/*
+ * No support for Scalable Vectors for protected VMs:
+ *	Requires additional support from KVM, e.g., context-switching and
+ *	trapping at EL2
+ */
+#define PVM_ID_AA64ZFR0_ALLOW (0ULL)
+
+/*
+ * No support for debug, including breakpoints, and watchpoints for protected
+ * VMs:
+ *	The Arm architecture mandates support for at least the Armv8 debug
+ *	architecture, which would include at least 2 hardware breakpoints and
+ *	watchpoints. Providing that support to protected guests adds
+ *	considerable state and complexity. Therefore, the reserved value of 0 is
+ *	used for debug-related fields.
+ */
+#define PVM_ID_AA64DFR0_ALLOW (0ULL)
+#define PVM_ID_AA64DFR1_ALLOW (0ULL)
+
+/*
+ * No support for implementation defined features.
+ */
+#define PVM_ID_AA64AFR0_ALLOW (0ULL)
+#define PVM_ID_AA64AFR1_ALLOW (0ULL)
+
+/*
+ * No restrictions on instructions implemented in AArch64.
+ */
+#define PVM_ID_AA64ISAR0_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_AES) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA1) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA2) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_CRC32) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_ATOMICS) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_RDM) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA3) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SM3) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_SM4) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_DP) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_FHM) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_TS) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_TLB) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR0_RNDR) \
+	)
+
+#define PVM_ID_AA64ISAR1_ALLOW (\
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_DPB) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_APA) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_API) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_JSCVT) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_FCMA) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_LRCPC) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_GPI) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_FRINTTS) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_SB) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_SPECRES) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_BF16) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_DGH) | \
+	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
+	)
+
+
 extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
 extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
deleted file mode 100644
index eea1f6a537230..0000000000000
--- a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
+++ /dev/null
@@ -1,200 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2021 Google LLC
- * Author: Fuad Tabba <tabba@google.com>
- */
-
-#ifndef __ARM64_KVM_FIXED_CONFIG_H__
-#define __ARM64_KVM_FIXED_CONFIG_H__
-
-#include <asm/sysreg.h>
-
-/*
- * This file contains definitions for features to be allowed or restricted for
- * guest virtual machines, depending on the mode KVM is running in and on the
- * type of guest that is running.
- *
- * The ALLOW masks represent a bitmask of feature fields that are allowed
- * without any restrictions as long as they are supported by the system.
- *
- * The RESTRICT_UNSIGNED masks, if present, represent unsigned fields for
- * features that are restricted to support at most the specified feature.
- *
- * If a feature field is not present in either, than it is not supported.
- *
- * The approach taken for protected VMs is to allow features that are:
- * - Needed by common Linux distributions (e.g., floating point)
- * - Trivial to support, e.g., supporting the feature does not introduce or
- * require tracking of additional state in KVM
- * - Cannot be trapped or prevent the guest from using anyway
- */
-
-/*
- * Allow for protected VMs:
- * - Floating-point and Advanced SIMD
- * - Data Independent Timing
- */
-#define PVM_ID_AA64PFR0_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64PFR0_FP) | \
-	ARM64_FEATURE_MASK(ID_AA64PFR0_ASIMD) | \
-	ARM64_FEATURE_MASK(ID_AA64PFR0_DIT) \
-	)
-
-/*
- * Restrict to the following *unsigned* features for protected VMs:
- * - AArch64 guests only (no support for AArch32 guests):
- *	AArch32 adds complexity in trap handling, emulation, condition codes,
- *	etc...
- * - RAS (v1)
- *	Supported by KVM
- */
-#define PVM_ID_AA64PFR0_RESTRICT_UNSIGNED (\
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL0), ID_AA64PFR0_ELx_64BIT_ONLY) | \
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1), ID_AA64PFR0_ELx_64BIT_ONLY) | \
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL2), ID_AA64PFR0_ELx_64BIT_ONLY) | \
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL3), ID_AA64PFR0_ELx_64BIT_ONLY) | \
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_RAS), ID_AA64PFR0_RAS_V1) \
-	)
-
-/*
- * Allow for protected VMs:
- * - Branch Target Identification
- * - Speculative Store Bypassing
- */
-#define PVM_ID_AA64PFR1_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64PFR1_BT) | \
-	ARM64_FEATURE_MASK(ID_AA64PFR1_SSBS) \
-	)
-
-/*
- * Allow for protected VMs:
- * - Mixed-endian
- * - Distinction between Secure and Non-secure Memory
- * - Mixed-endian at EL0 only
- * - Non-context synchronizing exception entry and exit
- */
-#define PVM_ID_AA64MMFR0_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64MMFR0_BIGENDEL) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR0_SNSMEM) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR0_BIGENDEL0) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR0_EXS) \
-	)
-
-/*
- * Restrict to the following *unsigned* features for protected VMs:
- * - 40-bit IPA
- * - 16-bit ASID
- */
-#define PVM_ID_AA64MMFR0_RESTRICT_UNSIGNED (\
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64MMFR0_PARANGE), ID_AA64MMFR0_PARANGE_40) | \
-	FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64MMFR0_ASID), ID_AA64MMFR0_ASID_16) \
-	)
-
-/*
- * Allow for protected VMs:
- * - Hardware translation table updates to Access flag and Dirty state
- * - Number of VMID bits from CPU
- * - Hierarchical Permission Disables
- * - Privileged Access Never
- * - SError interrupt exceptions from speculative reads
- * - Enhanced Translation Synchronization
- */
-#define PVM_ID_AA64MMFR1_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64MMFR1_HADBS) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR1_VMIDBITS) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR1_HPD) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR1_PAN) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR1_SPECSEI) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR1_ETS) \
-	)
-
-/*
- * Allow for protected VMs:
- * - Common not Private translations
- * - User Access Override
- * - IESB bit in the SCTLR_ELx registers
- * - Unaligned single-copy atomicity and atomic functions
- * - ESR_ELx.EC value on an exception by read access to feature ID space
- * - TTL field in address operations.
- * - Break-before-make sequences when changing translation block size
- * - E0PDx mechanism
- */
-#define PVM_ID_AA64MMFR2_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_CNP) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_UAO) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_IESB) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_AT) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_IDS) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_TTL) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_BBM) | \
-	ARM64_FEATURE_MASK(ID_AA64MMFR2_E0PD) \
-	)
-
-/*
- * No support for Scalable Vectors for protected VMs:
- *	Requires additional support from KVM, e.g., context-switching and
- *	trapping at EL2
- */
-#define PVM_ID_AA64ZFR0_ALLOW (0ULL)
-
-/*
- * No support for debug, including breakpoints, and watchpoints for protected
- * VMs:
- *	The Arm architecture mandates support for at least the Armv8 debug
- *	architecture, which would include at least 2 hardware breakpoints and
- *	watchpoints. Providing that support to protected guests adds
- *	considerable state and complexity. Therefore, the reserved value of 0 is
- *	used for debug-related fields.
- */
-#define PVM_ID_AA64DFR0_ALLOW (0ULL)
-#define PVM_ID_AA64DFR1_ALLOW (0ULL)
-
-/*
- * No support for implementation defined features.
- */
-#define PVM_ID_AA64AFR0_ALLOW (0ULL)
-#define PVM_ID_AA64AFR1_ALLOW (0ULL)
-
-/*
- * No restrictions on instructions implemented in AArch64.
- */
-#define PVM_ID_AA64ISAR0_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_AES) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA1) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA2) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_CRC32) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_ATOMICS) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_RDM) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_SHA3) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_SM3) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_SM4) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_DP) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_FHM) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_TS) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_TLB) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR0_RNDR) \
-	)
-
-#define PVM_ID_AA64ISAR1_ALLOW (\
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_DPB) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_APA) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_API) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_JSCVT) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_FCMA) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_LRCPC) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_GPI) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_FRINTTS) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_SB) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_SPECRES) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_BF16) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_DGH) | \
-	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
-	)
-
-u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
-bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
-bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code);
-int kvm_check_pvm_sysreg_table(void);
-
-#endif /* __ARM64_KVM_FIXED_CONFIG_H__ */
diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
new file mode 100644
index 0000000000000..8683aee28ef6f
--- /dev/null
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 Google LLC
+ * Author: Fuad Tabba <tabba@google.com>
+ */
+
+#ifndef __ARM64_KVM_NVHE_PKVM_H__
+#define __ARM64_KVM_NVHE_PKVM_H__
+
+#include <asm/kvm_pkvm.h>
+
+u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
+bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
+bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code);
+int kvm_check_pvm_sysreg_table(void);
+
+#endif /* __ARM64_KVM_NVHE_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 99c8d8b73e704..78946e0d314c9 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -6,7 +6,7 @@
 
 #include <linux/kvm_host.h>
 #include <linux/mm.h>
-#include <nvhe/fixed_config.h>
+#include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
 /*
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 4c5c9dc11f939..68b6f79824f43 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -11,11 +11,11 @@
 #include <asm/kvm_pkvm.h>
 
 #include <nvhe/early_alloc.h>
-#include <nvhe/fixed_config.h>
 #include <nvhe/gfp.h>
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
+#include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
 unsigned long hyp_nr_cpus;
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 6410d21d86957..9d2b971e8613d 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -26,8 +26,8 @@
 #include <asm/debug-monitors.h>
 #include <asm/processor.h>
 
-#include <nvhe/fixed_config.h>
 #include <nvhe/mem_protect.h>
+#include <nvhe/pkvm.h>
 
 /* Non-VHE specific context */
 DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data);
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 792cf6e6ac920..296a69ce925a4 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -8,10 +8,10 @@
 
 #include <asm/kvm_asm.h>
 #include <asm/kvm_mmu.h>
+#include <asm/kvm_pkvm.h>
 
 #include <hyp/adjust_pc.h>
-
-#include <nvhe/fixed_config.h>
+#include <nvhe/pkvm.h>
 
 #include "../../sys_regs.h"
 
-- 
GitLab


From 8ddd782c982b6707d31250a2167a06d1f3355390 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 20 Oct 2021 08:07:39 +0100
Subject: [PATCH 2645/4878] ANDROID: KVM: arm64: Trap debug break and watch
 from guest

Debug and trace are not currently supported for protected guests.
Trap related exceptions and restrict access to related registers.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: If7483e5b38837d6e7d83c47657a94f16a34ba856
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c     |  2 +-
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 78946e0d314c9..ddb626bbee55d 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -94,7 +94,7 @@ static void pvm_init_traps_aa64dfr0(struct kvm_vcpu *vcpu)
 
 	/* Trap Debug */
 	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DEBUGVER), feature_ids))
-		mdcr_set |= MDCR_EL2_TDRA | MDCR_EL2_TDA | MDCR_EL2_TDE;
+		mdcr_set |= MDCR_EL2_TDRA | MDCR_EL2_TDA;
 
 	/* Trap OS Double Lock */
 	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DOUBLELOCK), feature_ids))
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 296a69ce925a4..7a7d8b07586e9 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -338,6 +338,17 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	/* Cache maintenance by set/way operations are restricted. */
 
 	/* Debug and Trace Registers are restricted. */
+	RAZ_WI(SYS_DBGBVRn_EL1(0)),
+	RAZ_WI(SYS_DBGBCRn_EL1(0)),
+	RAZ_WI(SYS_DBGWVRn_EL1(0)),
+	RAZ_WI(SYS_DBGWCRn_EL1(0)),
+	RAZ_WI(SYS_MDSCR_EL1),
+	RAZ_WI(SYS_OSLAR_EL1),
+	RAZ_WI(SYS_OSLSR_EL1),
+	RAZ_WI(SYS_OSDLR_EL1),
+
+	/* Group 1 ID registers */
+	RAZ_WI(SYS_REVIDR_EL1),
 
 	/* AArch64 mappings of the AArch32 ID registers */
 	/* CRm=1 */
-- 
GitLab


From a3eccabf8e4b198cfc9b6e63fa34386beac4e359 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 12 Oct 2021 15:18:45 +0100
Subject: [PATCH 2646/4878] ANDROID: KVM: arm64: FAR_EL2 mask as a define

Create a macro definition for the FAR_EL2 mask and use it instead
of a hard-coded value, and put it in a share header to be used by
hyp.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Ib83932d670cba6bf8f1ed45d2c0e1ed34331d98d
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_arm.h | 2 ++
 arch/arm64/kvm/mmu.c             | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 01d47c5886dc4..a28af6579c20e 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -342,6 +342,8 @@
 #define PAR_TO_HPFAR(par)		\
 	(((par) & GENMASK_ULL(PHYS_MASK_SHIFT - 1, 12)) >> 8)
 
+#define FAR_MASK GENMASK_ULL(11, 0)
+
 #define ECN(x) { ESR_ELx_EC_##x, #x }
 
 #define kvm_arm_exception_class \
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 647e64df3a1ea..ef844c46fb8ed 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1393,7 +1393,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu)
 		 * faulting VA. This is always 12 bits, irrespective
 		 * of the page size.
 		 */
-		fault_ipa |= kvm_vcpu_get_hfar(vcpu) & ((1 << 12) - 1);
+		fault_ipa |= kvm_vcpu_get_hfar(vcpu) & FAR_MASK;
 		ret = io_mem_abort(vcpu, fault_ipa);
 		goto out_unlock;
 	}
-- 
GitLab


From 504bd4048c3b6506dd1af01a2f04cef363a47f0b Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 2 Feb 2021 10:10:03 +0000
Subject: [PATCH 2647/4878] ANDROID: KVM: arm64: Add hyp_spinlock_t static
 initializer

Having a static initializer for hyp_spinlock_t simplifies its
use when there isn't an initializing function.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Ib1eabe03f49013955a7afcbfcc6a7d3c4a31a736
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/spinlock.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h
index 4652fd04bdbee..7c7ea8c55405f 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/spinlock.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/spinlock.h
@@ -28,9 +28,17 @@ typedef union hyp_spinlock {
 	};
 } hyp_spinlock_t;
 
+#define __HYP_SPIN_LOCK_INITIALIZER \
+	{ .__val = 0 }
+
+#define __HYP_SPIN_LOCK_UNLOCKED \
+	((hyp_spinlock_t) __HYP_SPIN_LOCK_INITIALIZER)
+
+#define DEFINE_HYP_SPINLOCK(x)	hyp_spinlock_t x = __HYP_SPIN_LOCK_UNLOCKED
+
 #define hyp_spin_lock_init(l)						\
 do {									\
-	*(l) = (hyp_spinlock_t){ .__val = 0 };				\
+	*(l) = __HYP_SPIN_LOCK_UNLOCKED;				\
 } while (0)
 
 static inline void hyp_spin_lock(hyp_spinlock_t *lock)
-- 
GitLab


From 6847b104ec7d8ca01d109ea0684cb0abed9eca02 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 11 Nov 2021 13:25:10 +0000
Subject: [PATCH 2648/4878] ANDROID: KVM: arm64: Fix initializing traps for
 protected VMs

The values of the trapping registers for protected VMs should be
computed from the ground up, and not depend on potentially
preexisting values.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Iacd3916dd1bbfc8d9cc859f94a9d879e9d456ebc
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index ddb626bbee55d..9407d5c522459 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -154,21 +154,29 @@ static void pvm_init_traps_aa64mmfr1(struct kvm_vcpu *vcpu)
  */
 static void pvm_init_trap_regs(struct kvm_vcpu *vcpu)
 {
-	const u64 hcr_trap_feat_regs = HCR_TID3;
-	const u64 hcr_trap_impdef = HCR_TACR | HCR_TIDCP | HCR_TID1;
+	vcpu->arch.cptr_el2 = CPTR_EL2_DEFAULT;
+	vcpu->arch.mdcr_el2 = 0;
 
 	/*
 	 * Always trap:
 	 * - Feature id registers: to control features exposed to guests
 	 * - Implementation-defined features
 	 */
-	vcpu->arch.hcr_el2 |= hcr_trap_feat_regs | hcr_trap_impdef;
+	vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS |
+			     HCR_TID3 | HCR_TACR | HCR_TIDCP | HCR_TID1;
+
+	if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN)) {
+		/* route synchronous external abort exceptions to EL2 */
+		vcpu->arch.hcr_el2 |= HCR_TEA;
+		/* trap error record accesses */
+		vcpu->arch.hcr_el2 |= HCR_TERR;
+	}
+
+	if (cpus_have_const_cap(ARM64_HAS_STAGE2_FWB))
+		vcpu->arch.hcr_el2 |= HCR_FWB;
 
-	/* Clear res0 and set res1 bits to trap potential new features. */
-	vcpu->arch.hcr_el2 &= ~(HCR_RES0);
-	vcpu->arch.mdcr_el2 &= ~(MDCR_EL2_RES0);
-	vcpu->arch.cptr_el2 |= CPTR_NVHE_EL2_RES1;
-	vcpu->arch.cptr_el2 &= ~(CPTR_NVHE_EL2_RES0);
+	if (cpus_have_const_cap(ARM64_MISMATCHED_CACHE_TYPE))
+		vcpu->arch.hcr_el2 |= HCR_TID2;
 }
 
 /*
-- 
GitLab


From 044fffde536be369f74e9cd121ee378665913047 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Fri, 15 Oct 2021 13:16:12 +0100
Subject: [PATCH 2649/4878] ANDROID: KVM: arm64: Move pstate reset values to
 kvm_arm.h

Move the macro defines of the pstate reset values to a shared
header to be used by hyp in protected mode.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Iafd31108675027a799ce9ff3c5c56b49e87ead67
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_arm.h | 9 +++++++++
 arch/arm64/kvm/reset.c           | 9 ---------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index a28af6579c20e..337d77d5fc231 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -361,4 +361,13 @@
 #define CPACR_EL1_TTA		(1 << 28)
 #define CPACR_EL1_DEFAULT	(CPACR_EL1_FPEN | CPACR_EL1_ZEN_EL1EN)
 
+/*
+ * ARMv8 Reset Values
+ */
+#define VCPU_RESET_PSTATE_EL1	(PSR_MODE_EL1h | PSR_A_BIT | PSR_I_BIT | \
+				 PSR_F_BIT | PSR_D_BIT)
+
+#define VCPU_RESET_PSTATE_SVC	(PSR_AA32_MODE_SVC | PSR_AA32_A_BIT | \
+				 PSR_AA32_I_BIT | PSR_AA32_F_BIT)
+
 #endif /* __ARM64_KVM_ARM_H__ */
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index ba5a1762454dd..4595e9f030270 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -32,15 +32,6 @@
 /* Maximum phys_shift supported for any VM on this host */
 static u32 kvm_ipa_limit;
 
-/*
- * ARMv8 Reset Values
- */
-#define VCPU_RESET_PSTATE_EL1	(PSR_MODE_EL1h | PSR_A_BIT | PSR_I_BIT | \
-				 PSR_F_BIT | PSR_D_BIT)
-
-#define VCPU_RESET_PSTATE_SVC	(PSR_AA32_MODE_SVC | PSR_AA32_A_BIT | \
-				 PSR_AA32_I_BIT | PSR_AA32_F_BIT)
-
 unsigned int kvm_sve_max_vl;
 
 int kvm_arm_init_sve(void)
-- 
GitLab


From 60ce953510ab3aadc388d2fd1840a6318f7fbcfb Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 9 Nov 2021 13:35:41 +0000
Subject: [PATCH 2650/4878] ANDROID: KVM: arm64: Refactor reset_mpidr to
 extract its computation

Move the computation of the mpidr to its own function in a shared
header, as the computation will be used by hyp in protected mode.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: I531795b43c9747dceea485843eed114675db9354
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/sys_regs.c | 14 +-------------
 arch/arm64/kvm/sys_regs.h | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index e3ec1a44f94d8..cca18f4d2922c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -575,19 +575,7 @@ static void reset_actlr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
 
 static void reset_mpidr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
 {
-	u64 mpidr;
-
-	/*
-	 * Map the vcpu_id into the first three affinity level fields of
-	 * the MPIDR. We limit the number of VCPUs in level 0 due to a
-	 * limitation to 16 CPUs in that level in the ICC_SGIxR registers
-	 * of the GICv3 to be able to address each CPU directly when
-	 * sending IPIs.
-	 */
-	mpidr = (vcpu->vcpu_id & 0x0f) << MPIDR_LEVEL_SHIFT(0);
-	mpidr |= ((vcpu->vcpu_id >> 4) & 0xff) << MPIDR_LEVEL_SHIFT(1);
-	mpidr |= ((vcpu->vcpu_id >> 12) & 0xff) << MPIDR_LEVEL_SHIFT(2);
-	vcpu_write_sys_reg(vcpu, (1ULL << 31) | mpidr, MPIDR_EL1);
+	vcpu_write_sys_reg(vcpu, calculate_mpidr(vcpu), MPIDR_EL1);
 }
 
 static unsigned int pmu_visibility(const struct kvm_vcpu *vcpu,
diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index cc0cc95a02805..9b32772f398e5 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -183,6 +183,25 @@ find_reg(const struct sys_reg_params *params, const struct sys_reg_desc table[],
 	return __inline_bsearch((void *)pval, table, num, sizeof(table[0]), match_sys_reg);
 }
 
+static inline u64 calculate_mpidr(const struct kvm_vcpu *vcpu)
+{
+	u64 mpidr;
+
+	/*
+	 * Map the vcpu_id into the first three affinity level fields of
+	 * the MPIDR. We limit the number of VCPUs in level 0 due to a
+	 * limitation to 16 CPUs in that level in the ICC_SGIxR registers
+	 * of the GICv3 to be able to address each CPU directly when
+	 * sending IPIs.
+	 */
+	mpidr = (vcpu->vcpu_id & 0x0f) << MPIDR_LEVEL_SHIFT(0);
+	mpidr |= ((vcpu->vcpu_id >> 4) & 0xff) << MPIDR_LEVEL_SHIFT(1);
+	mpidr |= ((vcpu->vcpu_id >> 12) & 0xff) << MPIDR_LEVEL_SHIFT(2);
+	mpidr |= (1ULL << 31);
+
+	return mpidr;
+}
+
 const struct sys_reg_desc *find_reg_by_id(u64 id,
 					  struct sys_reg_params *params,
 					  const struct sys_reg_desc table[],
-- 
GitLab


From 03c94591265080ee40045a272625b2b5d086ab7c Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 11 Nov 2021 14:52:33 +0000
Subject: [PATCH 2651/4878] ANDROID: KVM: arm64: Reset sysregs for protected
 VMs

Create a framework for resetting protected VM system registers to
their architecturally defined reset values.

No functional change intended as these are not hooked in yet.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Iafdab9f796897429f0fb8abd5d7df9ca576e1f91
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |  1 +
 arch/arm64/kvm/hyp/nvhe/sys_regs.c     | 79 +++++++++++++++++++++++++-
 2 files changed, 79 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 8683aee28ef6f..382af7e58b22e 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -12,6 +12,7 @@
 u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
 bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
 bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code);
+void kvm_reset_pvm_sys_regs(struct kvm_vcpu *vcpu);
 int kvm_check_pvm_sysreg_table(void);
 
 #endif /* __ARM64_KVM_NVHE_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 7a7d8b07586e9..024e663305846 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -430,8 +430,80 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	/* Performance Monitoring Registers are restricted. */
 };
 
+/* A structure to track reset values for system registers in protected vcpus. */
+struct sys_reg_desc_reset {
+	/* Index into sys_reg[]. */
+	int reg;
+
+	/* Reset function. */
+	void (*reset)(struct kvm_vcpu *, const struct sys_reg_desc_reset *);
+
+	/* Reset value. */
+	u64 value;
+};
+
+static void reset_actlr(struct kvm_vcpu *vcpu, const struct sys_reg_desc_reset *r)
+{
+	__vcpu_sys_reg(vcpu, r->reg) = read_sysreg(actlr_el1);
+}
+
+static void reset_amair_el1(struct kvm_vcpu *vcpu, const struct sys_reg_desc_reset *r)
+{
+	__vcpu_sys_reg(vcpu, r->reg) = read_sysreg(amair_el1);
+}
+
+static void reset_mpidr(struct kvm_vcpu *vcpu, const struct sys_reg_desc_reset *r)
+{
+	__vcpu_sys_reg(vcpu, r->reg) = calculate_mpidr(vcpu);
+}
+
+static void reset_value(struct kvm_vcpu *vcpu, const struct sys_reg_desc_reset *r)
+{
+	__vcpu_sys_reg(vcpu, r->reg) = r->value;
+}
+
+/* Specify the register's reset value. */
+#define RESET_VAL(REG, RESET_VAL) {  REG, reset_value, RESET_VAL }
+
+/* Specify a function that calculates the register's reset value. */
+#define RESET_FUNC(REG, RESET_FUNC) {  REG, RESET_FUNC, 0 }
+
+/*
+ * Architected system registers reset values for Protected VMs.
+ * Important: Must be sorted ascending by REG (index into sys_reg[])
+ */
+static const struct sys_reg_desc_reset pvm_sys_reg_reset_vals[] = {
+	RESET_FUNC(MPIDR_EL1, reset_mpidr),
+	RESET_VAL(SCTLR_EL1, 0x00C50078),
+	RESET_FUNC(ACTLR_EL1, reset_actlr),
+	RESET_VAL(CPACR_EL1, 0),
+	RESET_VAL(TCR_EL1, 0),
+	RESET_VAL(VBAR_EL1, 0),
+	RESET_VAL(CONTEXTIDR_EL1, 0),
+	RESET_FUNC(AMAIR_EL1, reset_amair_el1),
+	RESET_VAL(CNTKCTL_EL1, 0),
+	RESET_VAL(DISR_EL1, 0),
+};
+
 /*
- * Checks that the sysreg table is unique and in-order.
+ * Sets system registers to reset value
+ *
+ * This function finds the right entry and sets the registers on the protected
+ * vcpu to their architecturally defined reset values.
+ */
+void kvm_reset_pvm_sys_regs(struct kvm_vcpu *vcpu)
+{
+	unsigned long i;
+
+	for (i = 0; i < ARRAY_SIZE(pvm_sys_reg_reset_vals); i++) {
+		const struct sys_reg_desc_reset *r = &pvm_sys_reg_reset_vals[i];
+
+		r->reset(vcpu, r);
+	}
+}
+
+/*
+ * Checks that the sysreg tables are unique and in-order.
  *
  * Returns 0 if the table is consistent, or 1 otherwise.
  */
@@ -444,6 +516,11 @@ int kvm_check_pvm_sysreg_table(void)
 			return 1;
 	}
 
+	for (i = 1; i < ARRAY_SIZE(pvm_sys_reg_reset_vals); i++) {
+		if (pvm_sys_reg_reset_vals[i-1].reg >= pvm_sys_reg_reset_vals[i].reg)
+			return 1;
+	}
+
 	return 0;
 }
 
-- 
GitLab


From bd5993889ee145a827bd3c01ad52e6c8c77ebbea Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 3 Feb 2021 17:17:01 +0000
Subject: [PATCH 2652/4878] ANDROID: KVM: arm64: Shadow table for KVM EL2 state

Create and populate a shadow table that contains the state hyp
need for running protected VMs, i.e., struct kvm and struct
kvm_vcpu at EL2.

The memory for this is donated by the host and then unmapped from
the host at stage 1 and at stage 2 (by hyp).

This state is not used yet.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Ie2d948f2a5f22a06d615d909de7a60d46944e6d8
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h       |   2 +
 arch/arm64/include/asm/kvm_host.h      |  23 ++
 arch/arm64/include/asm/kvm_pkvm.h      |   9 +-
 arch/arm64/kvm/arm.c                   |   9 +
 arch/arm64/kvm/hyp/hyp-constants.c     |   3 +
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |  40 +++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c     |  60 ++++-
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 354 +++++++++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/setup.c        |   5 +
 arch/arm64/kvm/pkvm.c                  |  80 ++++++
 10 files changed, 582 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index edb496f67bfd9..bcb01c76b2609 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -75,6 +75,8 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs,
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_init_traps,
+	__KVM_HOST_SMCCC_FUNC___pkvm_init_shadow,
+	__KVM_HOST_SMCCC_FUNC___pkvm_teardown_shadow,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index ab4733321f83b..efb96482edeaa 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -102,6 +102,11 @@ struct kvm_s2_mmu {
 struct kvm_arch_memory_slot {
 };
 
+struct kvm_protected_vm {
+	bool enabled;
+	int shadow_handle;
+};
+
 struct kvm_arch {
 	struct kvm_s2_mmu mmu;
 
@@ -137,6 +142,22 @@ struct kvm_arch {
 
 	/* Memory Tagging Extension enabled for the guest */
 	bool mte_enabled;
+
+	struct kvm_protected_vm pkvm;
+};
+
+struct kvm_protected_vcpu {
+	/* A unique id to the shadow structs in the hyp shadow area. */
+	int shadow_handle;
+
+	/* A pointer to the host's vcpu. */
+	struct kvm_vcpu *host_vcpu;
+
+	/* A pointer to the shadow vm. */
+	struct kvm_shadow_vm *shadow_vm;
+
+	/* Tracks exit code for the protected guest. */
+	int exit_code;
 };
 
 struct kvm_vcpu_fault_info {
@@ -390,6 +411,8 @@ struct kvm_vcpu_arch {
 		u64 last_steal;
 		gpa_t base;
 	} steal;
+
+	struct kvm_protected_vcpu pkvm;
 };
 
 /* Pointer to the vcpu's SVE FFR for sve_{save,load}_state() */
diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index f2d5175cdf05b..7d18610e6ddbb 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -11,6 +11,9 @@
 #include <asm/kvm_pgtable.h>
 #include <asm/sysreg.h>
 
+/* Maximum number of protected VMs that can be created. */
+#define KVM_MAX_PVMS 255
+
 #define HYP_MEMBLOCK_REGIONS 128
 
 /*
@@ -196,7 +199,6 @@
 	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
 	)
 
-
 extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
 extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
 
@@ -226,6 +228,11 @@ static inline unsigned long hyp_vmemmap_pages(size_t vmemmap_entry_size)
 	return res >> PAGE_SHIFT;
 }
 
+static inline unsigned long hyp_shadow_table_pages(size_t shadow_entry_size)
+{
+	return PAGE_ALIGN(KVM_MAX_PVMS * shadow_entry_size) >> PAGE_SHIFT;
+}
+
 static inline unsigned long __hyp_pgtable_max_pages(unsigned long nr_pages)
 {
 	unsigned long total = 0, i;
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 49ee57d4141bc..9f84abe2a562a 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -167,6 +167,14 @@ vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 	return VM_FAULT_SIGBUS;
 }
 
+static void kvm_shadow_destroy(struct kvm *kvm)
+{
+	if (!kvm_vm_is_protected(kvm))
+		return;
+
+	if (kvm->arch.pkvm.shadow_handle)
+		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
+}
 
 /**
  * kvm_arch_destroy_vm - destroy the VM data structure
@@ -179,6 +187,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 	bitmap_free(kvm->arch.pmu_filter);
 
 	kvm_vgic_destroy(kvm);
+	kvm_shadow_destroy(kvm);
 
 	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
 		if (kvm->vcpus[i]) {
diff --git a/arch/arm64/kvm/hyp/hyp-constants.c b/arch/arm64/kvm/hyp/hyp-constants.c
index b3742a6691e87..ef55191cd05d0 100644
--- a/arch/arm64/kvm/hyp/hyp-constants.c
+++ b/arch/arm64/kvm/hyp/hyp-constants.c
@@ -2,9 +2,12 @@
 
 #include <linux/kbuild.h>
 #include <nvhe/memory.h>
+#include <nvhe/pkvm.h>
 
 int main(void)
 {
 	DEFINE(STRUCT_HYP_PAGE_SIZE,	sizeof(struct hyp_page));
+	DEFINE(KVM_SHADOW_VM_SIZE,	sizeof(struct kvm_shadow_vm));
+	DEFINE(SHADOW_VCPU_STATE_SIZE,	sizeof(struct shadow_vcpu_state));
 	return 0;
 }
diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 382af7e58b22e..f3a2e0d2bdc32 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -9,6 +9,46 @@
 
 #include <asm/kvm_pkvm.h>
 
+/*
+ * A container for the vcpu state that hyp needs to maintain for protected VMs.
+ */
+struct shadow_vcpu_state {
+	struct kvm_shadow_vm *vm;
+	struct kvm_vcpu vcpu;
+};
+
+/*
+ * Holds the relevant data for running a protected vm.
+ */
+struct kvm_shadow_vm {
+	/* A unique id to the shadow structs in the hyp shadow area. */
+	int shadow_handle;
+
+	/* A pointer to the s2 mmu for the protected vm.. */
+	struct kvm_s2_mmu *mmu;
+
+	/* Number of vcpus for the vm. */
+	int created_vcpus;
+
+	/* Pointers to the shadow vcpus of the shadow vm. */
+	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+
+	/* The host's kvm structure. */
+	struct kvm *host_kvm;
+
+	/* The total size of the donated shadow area. */
+	size_t shadow_area_size;
+
+	/* Array of the shadow state per vcpu. */
+	struct shadow_vcpu_state shadow_vcpus[0];
+};
+
+extern struct kvm_shadow_vm **shadow_table;
+
+int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size);
+int __pkvm_teardown_shadow(struct kvm *kvm);
+struct kvm_vcpu *hyp_get_shadow_vcpu(const struct kvm_vcpu *host_vcpu);
+
 u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
 bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
 bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 7600f8bf5b836..996582293646e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -15,6 +15,7 @@
 
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
+#include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
@@ -23,18 +24,54 @@ struct kvm_iommu_ops kvm_iommu_ops;
 
 void __kvm_hyp_host_forward_smc(struct kvm_cpu_context *host_ctxt);
 
+static struct kvm_vcpu *get_shadow_vcpu(struct kvm_vcpu *host_vcpu)
+{
+	struct kvm_vcpu *shadow_vcpu;
+
+	host_vcpu = kern_hyp_va(host_vcpu);
+	shadow_vcpu = hyp_get_shadow_vcpu(host_vcpu);
+
+	if (shadow_vcpu) {
+		shadow_vcpu->arch.pkvm.exit_code = 0;
+		return shadow_vcpu;
+	}
+
+	return host_vcpu;
+}
+
+static void put_shadow_vcpu(struct kvm_vcpu *shadow_vcpu, int exit_code)
+{
+	shadow_vcpu->arch.pkvm.exit_code = exit_code;
+}
+
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+	struct kvm_vcpu *shadow_vcpu;
+	int ret;
+
+	shadow_vcpu = get_shadow_vcpu(vcpu);
+	ret = __kvm_vcpu_run(shadow_vcpu);
+
+	if (shadow_vcpu != kern_hyp_va(vcpu))
+		put_shadow_vcpu(shadow_vcpu, ret);
 
-	cpu_reg(host_ctxt, 1) =  __kvm_vcpu_run(kern_hyp_va(vcpu));
+	cpu_reg(host_ctxt, 1) =  ret;
 }
 
 static void handle___kvm_adjust_pc(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
 
-	__kvm_adjust_pc(kern_hyp_va(vcpu));
+	/*
+	 * This get_shadow_vcpu() shouldn't exist, as we would never
+	 * commit a pending update before returning to userspace, and
+	 * this is an actual attack vector (it leaves EL1 in full
+	 * control of PC).
+	 */
+	vcpu = get_shadow_vcpu(vcpu);
+
+	__kvm_adjust_pc(vcpu);
 }
 
 static void handle___kvm_flush_vm_context(struct kvm_cpu_context *host_ctxt)
@@ -178,6 +215,23 @@ static void handle___pkvm_vcpu_init_traps(struct kvm_cpu_context *host_ctxt)
 	__pkvm_vcpu_init_traps(kern_hyp_va(vcpu));
 }
 
+static void handle___pkvm_init_shadow(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(struct kvm *, host_kvm, host_ctxt, 1);
+	DECLARE_REG(void *, host_shadow_va, host_ctxt, 2);
+	DECLARE_REG(size_t, shadow_size, host_ctxt, 3);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_init_shadow(host_kvm, host_shadow_va,
+						       shadow_size);
+}
+
+static void handle___pkvm_teardown_shadow(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(struct kvm *, host_kvm, host_ctxt, 1);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_teardown_shadow(host_kvm);
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -207,6 +261,8 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__vgic_v3_save_aprs),
 	HANDLE_FUNC(__vgic_v3_restore_aprs),
 	HANDLE_FUNC(__pkvm_vcpu_init_traps),
+	HANDLE_FUNC(__pkvm_init_shadow),
+	HANDLE_FUNC(__pkvm_teardown_shadow),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 9407d5c522459..2e1839e72939f 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -4,8 +4,16 @@
  * Author: Fuad Tabba <tabba@google.com>
  */
 
+#include <asm/kvm_asm.h>
+#include <asm/kvm_emulate.h>
+#include <asm/kvm_mmu.h>
+#include <asm/memory.h>
+
 #include <linux/kvm_host.h>
 #include <linux/mm.h>
+
+#include <nvhe/mem_protect.h>
+#include <nvhe/mm.h>
 #include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
@@ -191,3 +199,349 @@ void __pkvm_vcpu_init_traps(struct kvm_vcpu *vcpu)
 	pvm_init_traps_aa64mmfr0(vcpu);
 	pvm_init_traps_aa64mmfr1(vcpu);
 }
+
+/*
+ * Start the shadow table handle at the offset defined instead of at 0.
+ * Mainly for sanity checking and debugging.
+ */
+#define HANDLE_OFFSET 0x1000
+
+static int shadow_handle_to_index(int shadow_handle)
+{
+	return shadow_handle - HANDLE_OFFSET;
+}
+
+static int index_to_shadow_handle(int index)
+{
+	return index + HANDLE_OFFSET;
+}
+
+extern unsigned long hyp_nr_cpus;
+
+/*
+ * Spinlock for protecting the shadow table related state.
+ * Protects writes to shadow_table, num_shadow_entries, and next_shadow_alloc,
+ * as well as reads and writes to last_shadow_vcpu_lookup.
+ */
+DEFINE_HYP_SPINLOCK(shadow_lock);
+
+/*
+ * The table of shadow entries for protected VMs in hyp.
+ * Allocated at hyp initialization and setup.
+ */
+struct kvm_shadow_vm **shadow_table;
+
+/* Current number of vms in the shadow table. */
+int num_shadow_entries;
+
+/* The next entry index to try to allocate from. */
+int next_shadow_alloc;
+
+/*
+ * Return the shadow vm corresponding to the handle.
+ */
+static struct kvm_shadow_vm *find_shadow_by_handle(int shadow_handle)
+{
+	int shadow_index = shadow_handle_to_index(shadow_handle);
+
+	if (unlikely(shadow_index < 0 || shadow_index >= KVM_MAX_PVMS))
+		return NULL;
+
+	return shadow_table[shadow_index];
+}
+
+/*
+ * Returns the hyp shadow vcpu for the corresponding host vcpu,
+ * or NULL if it fails.
+ */
+struct kvm_vcpu *hyp_get_shadow_vcpu(const struct kvm_vcpu *vcpu)
+{
+	struct shadow_vcpu_state *shadow_vcpu_state;
+	struct kvm_shadow_vm *vm;
+	int vcpu_idx;
+	int shadow_handle;
+
+	shadow_handle = vcpu->arch.pkvm.shadow_handle;
+	vm = find_shadow_by_handle(shadow_handle);
+	vcpu_idx = vcpu->vcpu_idx;
+
+	if (unlikely(!vm || vcpu_idx < 0 || vcpu_idx >= vm->created_vcpus))
+		return NULL;
+
+	shadow_vcpu_state = &vm->shadow_vcpus[vcpu_idx];
+
+	return &shadow_vcpu_state->vcpu;
+}
+
+/* Copy the supported features for the vcpu from the host. */
+static void copy_features(struct kvm_vcpu *shadow_vcpu, struct kvm_vcpu *host_vcpu)
+{
+	DECLARE_BITMAP(allowed_features, KVM_VCPU_MAX_FEATURES);
+
+	bitmap_zero(allowed_features, KVM_VCPU_MAX_FEATURES);
+
+	/*
+	 * Always allowed:
+	 * - CPU starting in poweroff state
+	 * - PSCI v0.2
+	 */
+	set_bit(KVM_ARM_VCPU_POWER_OFF, allowed_features);
+	set_bit(KVM_ARM_VCPU_PSCI_0_2, allowed_features);
+
+	/*
+	 * Check if remaining features are allowed:
+	 * - Performance Monitoring
+	 * - Scalable Vectors
+	 * - Pointer Authentication
+	 */
+	if (FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMUVER), PVM_ID_AA64DFR0_ALLOW))
+	        set_bit(KVM_ARM_VCPU_PMU_V3, allowed_features);
+
+	if (FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_SVE), PVM_ID_AA64PFR0_ALLOW))
+	        set_bit(KVM_ARM_VCPU_SVE, allowed_features);
+
+	if (FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_API), PVM_ID_AA64ISAR1_ALLOW) &&
+	    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_APA), PVM_ID_AA64ISAR1_ALLOW))
+	        set_bit(KVM_ARM_VCPU_PTRAUTH_ADDRESS, allowed_features);
+
+	if (FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_GPI), PVM_ID_AA64ISAR1_ALLOW) &&
+	    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA), PVM_ID_AA64ISAR1_ALLOW))
+	        set_bit(KVM_ARM_VCPU_PTRAUTH_GENERIC, allowed_features);
+
+	bitmap_and(shadow_vcpu->arch.features, host_vcpu->arch.features,
+		allowed_features, KVM_VCPU_MAX_FEATURES);
+}
+
+static void init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr_vcpus)
+{
+	int i;
+
+	/* TODO: initialize the protected MMU. For now, use the host's. */
+	vm->mmu = &kvm->arch.mmu;
+	vm->host_kvm = kvm;
+	vm->created_vcpus = 0;
+
+	for (i = 0; i < nr_vcpus; i++) {
+		struct kvm_vcpu *host_vcpu = kern_hyp_va(kvm->vcpus[i]);
+		struct shadow_vcpu_state *shadow_state = &vm->shadow_vcpus[i];
+		struct kvm_vcpu *shadow_vcpu = &shadow_state->vcpu;
+
+		shadow_vcpu->kvm = kvm;
+		shadow_vcpu->vcpu_id = host_vcpu->vcpu_id;
+		shadow_vcpu->vcpu_idx = i;
+
+		vcpu_gp_regs(shadow_vcpu)->pstate = VCPU_RESET_PSTATE_EL1;
+		*vcpu_pc(shadow_vcpu) = *vcpu_pc(host_vcpu);
+		vcpu_set_reg(shadow_vcpu, 0, vcpu_get_reg(host_vcpu, 0));
+
+		kvm_reset_pvm_sys_regs(shadow_vcpu);
+
+		copy_features(shadow_vcpu, host_vcpu);
+
+		vm->vcpus[i] = shadow_vcpu;
+		shadow_state->vm = vm;
+
+		/* TODO - use &vm->arch.mmu when setup properly */
+		shadow_vcpu->arch.hw_mmu = host_vcpu->arch.hw_mmu;
+		shadow_vcpu->arch.pkvm.shadow_handle = vm->shadow_handle;
+		shadow_vcpu->arch.pkvm.host_vcpu = host_vcpu;
+		shadow_vcpu->arch.pkvm.shadow_vm = vm;
+
+		vm->created_vcpus++;
+	}
+}
+
+static bool exists_shadow(struct kvm *host_kvm)
+{
+	int i;
+	int num_checked = 0;
+
+	for (i = 0; i < KVM_MAX_PVMS && num_checked < num_shadow_entries; i++) {
+		if (!shadow_table[i])
+			continue;
+
+		if (unlikely(shadow_table[i]->host_kvm == host_kvm))
+			return true;
+
+		num_checked++;
+	}
+
+	return false;
+}
+
+/*
+ * Allocate a shadow table entry and insert a pointer to the shadow vm.
+ *
+ * Return a unique handle to the protected VM on success,
+ * negative error code on failure.
+ */
+static int __insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
+			         size_t shadow_size)
+{
+	int shadow_handle;
+
+	if (unlikely(num_shadow_entries >= KVM_MAX_PVMS))
+		return -ENOMEM;
+
+	/*
+	 * Initializing protected state might have failed, yet a malicious host
+	 * could trigger this function. Thus, ensure that shadow_table exists.
+	 */
+	if (unlikely(!shadow_table))
+		return -EINVAL;
+
+	/* Check that a shadow hasn't been created before for this host KVM. */
+	if (unlikely(exists_shadow(kvm)))
+		return -EEXIST;
+
+	/* Find the next free entry in the shadow table. */
+	while (shadow_table[next_shadow_alloc])
+		next_shadow_alloc = (next_shadow_alloc + 1) % KVM_MAX_PVMS;
+	shadow_handle = index_to_shadow_handle(next_shadow_alloc);
+
+	vm->shadow_handle = shadow_handle;
+	vm->shadow_area_size = shadow_size;
+
+	shadow_table[next_shadow_alloc] = vm;
+	next_shadow_alloc = (next_shadow_alloc + 1) % KVM_MAX_PVMS;
+	num_shadow_entries++;
+
+	return shadow_handle;
+}
+
+static int insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
+			       size_t shadow_size)
+{
+	int ret;
+
+	hyp_spin_lock(&shadow_lock);
+	ret = __insert_shadow_table(kvm, vm, shadow_size);
+	hyp_spin_unlock(&shadow_lock);
+
+	return ret;
+}
+
+/*
+ * Deallocate and remove the shadow table entry corresponding to the handle.
+ */
+static void __remove_shadow_table(int shadow_handle)
+{
+	shadow_table[shadow_handle_to_index(shadow_handle)] = NULL;
+	num_shadow_entries--;
+}
+
+static void remove_shadow_table(int shadow_handle)
+{
+	hyp_spin_lock(&shadow_lock);
+	__remove_shadow_table(shadow_handle);
+	hyp_spin_unlock(&shadow_lock);
+}
+
+static size_t pkvm_get_shadow_size(int num_vcpus)
+{
+	/* Shadow space for the vm struct and all of its vcpu states. */
+	return sizeof(struct kvm_shadow_vm) +
+	       sizeof(struct shadow_vcpu_state) * num_vcpus;
+}
+
+/*
+ * Check whether the size of the area donated by the host is sufficient for
+ * the shadow structues required for nr_vcpus as well as the shadow vm.
+ */
+static int check_shadow_size(int nr_vcpus, size_t shadow_size)
+{
+	if (nr_vcpus < 1 || nr_vcpus > KVM_MAX_VCPUS)
+		return -EINVAL;
+
+	/*
+	 * Shadow size is rounded up when allocated and donated by the host,
+	 * so it's likely to be larger than the sum of the struct sizes.
+	 */
+	if (shadow_size < pkvm_get_shadow_size(nr_vcpus))
+		return -EINVAL;
+
+	return 0;
+}
+
+/*
+ * Initialize the shadow copy of the protected VM state using the memory
+ * donated by the host.
+ *
+ * Unmaps the donated memory from the host at stage 2.
+ *
+ * Return a unique handle to the protected VM on success,
+ * negative error code on failure.
+ */
+int __pkvm_init_shadow(struct kvm *kvm,
+		       void *shadow_va,
+		       size_t shadow_size)
+{
+	struct kvm_shadow_vm *vm = kern_hyp_va(shadow_va);
+	phys_addr_t shadow_pa = hyp_virt_to_phys(vm);
+	u64 pfn = hyp_phys_to_pfn(shadow_pa);
+	u64 nr_pages = shadow_size >> PAGE_SHIFT;
+	int nr_vcpus = 0;
+	int ret = 0;
+
+	kvm = kern_hyp_va(kvm);
+
+	/* Ensure the host has donated enough memory for the shadow structs. */
+	nr_vcpus = kvm->created_vcpus;
+	ret = check_shadow_size(nr_vcpus, shadow_size);
+	if (ret)
+		goto err;
+
+	ret = __pkvm_host_donate_hyp(pfn, nr_pages);
+	if (ret)
+		goto err;
+
+	/* Ensure we're working with a clean slate. */
+	memset(vm, 0, shadow_size);
+
+	/* Add the entry to the shadow table. */
+	ret = insert_shadow_table(kvm, vm, shadow_size);
+	if (ret < 0)
+		goto err_clear_shadow;
+
+	init_shadow_structs(kvm, vm, nr_vcpus);
+
+	return vm->shadow_handle;
+
+err_clear_shadow:
+	/* Clear the donated shadow memory on failure to avoid data leaks. */
+	memset(vm, 0, shadow_size);
+	WARN_ON(__pkvm_hyp_donate_host(pfn, nr_pages));
+
+err:
+	return ret;
+}
+
+int __pkvm_teardown_shadow(struct kvm *kvm)
+{
+	struct kvm_shadow_vm *vm;
+	size_t shadow_size;
+	int shadow_handle;
+	u64 pfn;
+	u64 nr_pages;
+
+	kvm = kern_hyp_va(kvm);
+
+	shadow_handle = kvm->arch.pkvm.shadow_handle;
+
+	/* Lookup then remove entry from the shadow table. */
+	vm = find_shadow_by_handle(shadow_handle);
+	if (!vm)
+		return -ENOENT;
+
+	shadow_size = vm->shadow_area_size;
+
+	remove_shadow_table(shadow_handle);
+
+	/* Clear the shadow memory since hyp is releasing it back to host. */
+	memset(vm, 0, shadow_size);
+
+	pfn = hyp_phys_to_pfn(__hyp_pa(vm));
+	nr_pages = shadow_size >> PAGE_SHIFT;
+	WARN_ON(__pkvm_hyp_donate_host(pfn, nr_pages));
+	return 0;
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 68b6f79824f43..a0e1b4f33b16b 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -40,6 +40,11 @@ static int divide_memory_pool(void *virt, unsigned long size)
 	if (!vmemmap_base)
 		return -ENOMEM;
 
+	nr_pages = hyp_shadow_table_pages(sizeof(struct kvm_shadow_vm));
+	shadow_table = hyp_early_alloc_contig(nr_pages);
+	if (!shadow_table)
+		return -ENOMEM;
+
 	nr_pages = hyp_s1_pgtable_pages();
 	hyp_pgt_base = hyp_early_alloc_contig(nr_pages);
 	if (!hyp_pgt_base)
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index f3d29e5a7adef..21740614e2ece 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -6,6 +6,8 @@
 
 #include <linux/kvm_host.h>
 #include <linux/memblock.h>
+#include <linux/mm.h>
+#include <linux/mutex.h>
 #include <linux/sort.h>
 
 #include <asm/kvm_pkvm.h>
@@ -71,6 +73,7 @@ void __init kvm_hyp_reserve(void)
 
 	hyp_mem_pages += hyp_s1_pgtable_pages();
 	hyp_mem_pages += host_s2_pgtable_pages();
+	hyp_mem_pages += hyp_shadow_table_pages(KVM_SHADOW_VM_SIZE);
 	hyp_mem_pages += hyp_vmemmap_pages(STRUCT_HYP_PAGE_SIZE);
 
 	/*
@@ -96,3 +99,80 @@ void __init kvm_hyp_reserve(void)
 	kvm_info("Reserved %lld MiB at 0x%llx\n", hyp_mem_size >> 20,
 		 hyp_mem_base);
 }
+
+/*
+ * Updates the state of the host's version of the vcpu state.
+ */
+static void update_vcpu_state(struct kvm_vcpu *vcpu, int shadow_handle)
+{
+	vcpu->arch.pkvm.shadow_handle = shadow_handle;
+}
+
+/*
+ * Allocates and donates memory for EL2 shadow structs.
+ *
+ * Allocates space for the shadow state, which includes the shadow vm as well as
+ * the shadow vcpu states.
+ *
+ * Stores an opaque handler in the kvm struct for future reference.
+ *
+ * Return 0 on success, negative error code on failure.
+ */
+static int create_el2_shadow(struct kvm *kvm)
+{
+	int shadow_handle;
+	void *shadow_addr;
+	size_t shadow_sz;
+	int ret, i;
+
+	if (kvm->arch.pkvm.shadow_handle)
+		return -EEXIST;
+
+	if (kvm->created_vcpus < 1)
+		return -EINVAL;
+
+	/* Allocate memory to donate to hyp for the kvm and vcpu state. */
+	shadow_sz = PAGE_ALIGN(KVM_SHADOW_VM_SIZE +
+			       SHADOW_VCPU_STATE_SIZE * kvm->created_vcpus);
+	shadow_addr = alloc_pages_exact(shadow_sz, GFP_KERNEL_ACCOUNT);
+	if (!shadow_addr)
+		return -ENOMEM;
+
+	/* Donate the shadow memory to hyp and let hyp initialize it. */
+	ret = kvm_call_hyp_nvhe(__pkvm_init_shadow, kvm, shadow_addr, shadow_sz);
+	if (ret < 0)
+		goto err;
+
+	shadow_handle = ret;
+
+	/* Store the shadow handle given by hyp for future call reference. */
+	kvm->arch.pkvm.shadow_handle = shadow_handle;
+
+	/* Adjust host's vcpu state as it doesn't control it anymore. */
+	for (i = 0; i < kvm->created_vcpus; i++)
+		update_vcpu_state(kvm->vcpus[i], shadow_handle);
+
+	return 0;
+
+err:
+	free_pages_exact(shadow_addr, shadow_sz);
+	return ret;
+}
+
+int pkvm_init_el2_context(struct kvm *kvm)
+{
+	int ret = 0;
+
+	mutex_lock(&kvm->lock);
+	ret = create_el2_shadow(kvm);
+	mutex_unlock(&kvm->lock);
+
+	if (ret < 0) {
+		kvm_err("Creating shadow structures for protected VM failed: %d\n",
+			ret);
+		return ret;
+	}
+
+	kvm_pr_unimpl("Stage-2 protection is a work-in-progress: civilization phase III\n");
+	return 0;
+}
-- 
GitLab


From 5bf9b540d41525fb4a942ca1d7d7fec72395f009 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 10 Nov 2021 11:17:40 +0000
Subject: [PATCH 2653/4878] ANDROID: KVM: arm64: Add handlers for entry/exit
 state

Add handlers to exchange information between the
host and the protected guest on vcpu entry and exit, which
most often would happen on running a vcpu.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: I1716f55f5a1cb75dcde26b58af8f78ee80e4a19e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 239 +++++++++++++++++++++++++++++
 1 file changed, 239 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 996582293646e..fe25bc647596c 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -4,6 +4,8 @@
  * Author: Andrew Scull <ascull@google.com>
  */
 
+#include <kvm/arm_hypercalls.h>
+
 #include <hyp/adjust_pc.h>
 
 #include <asm/pgtable-types.h>
@@ -18,12 +20,245 @@
 #include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
+#include <uapi/linux/psci.h>
+
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
 
 struct kvm_iommu_ops kvm_iommu_ops;
 
 void __kvm_hyp_host_forward_smc(struct kvm_cpu_context *host_ctxt);
 
+typedef void (*shadow_entry_exit_handler_fn)(struct kvm_vcpu *, struct kvm_vcpu *);
+
+static void handle_pvm_entry_wfx(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	shadow_vcpu->arch.flags |= host_vcpu->arch.flags & KVM_ARM64_INCREMENT_PC;
+}
+
+static void handle_pvm_entry_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	/* HVCs for pvms either don't return or use only one register. */
+	vcpu_set_reg(shadow_vcpu, 0, vcpu_get_reg(host_vcpu, 0));
+}
+
+static void handle_pvm_entry_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	u32 esr_el2 = shadow_vcpu->arch.fault.esr_el2;
+	bool is_read = (esr_el2 & ESR_ELx_SYS64_ISS_DIR_MASK) == ESR_ELx_SYS64_ISS_DIR_READ;
+
+	shadow_vcpu->arch.flags |= host_vcpu->arch.flags &
+		(KVM_ARM64_PENDING_EXCEPTION | KVM_ARM64_INCREMENT_PC);
+
+	if (shadow_vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION) {
+		/* Exceptions caused by this should be undef exceptions. */
+		u32 esr_el1 = (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT);
+
+		__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr_el1;
+	} else if (is_read) {
+		/* r0 as transfer register between the guest and the host. */
+		u64 rt_val = vcpu_get_reg(host_vcpu, 0);
+		int rt = kvm_vcpu_sys_get_rt(shadow_vcpu);
+
+		vcpu_set_reg(shadow_vcpu, rt, rt_val);
+	}
+}
+
+static void handle_pvm_entry_abt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	shadow_vcpu->arch.flags |= host_vcpu->arch.flags &
+		(KVM_ARM64_PENDING_EXCEPTION | KVM_ARM64_INCREMENT_PC);
+
+	if (shadow_vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION) {
+		/* If the host wants to inject an exception, get syndrom and fault address. */
+		u32 far_el1 = kvm_vcpu_get_hfar(shadow_vcpu);
+		u32 esr_el1;
+
+		esr_el1 = ESR_ELx_EC_IABT_CUR << ESR_ELx_EC_SHIFT;
+		esr_el1 |= ESR_ELx_FSC_EXTABT;
+
+		__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr_el1;
+		__vcpu_sys_reg(shadow_vcpu, FAR_EL1) = far_el1;
+	}
+}
+
+static void handle_pvm_entry_dabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	bool pend_exception;
+	bool inc_pc;
+
+	handle_pvm_entry_abt(host_vcpu, shadow_vcpu);
+
+	pend_exception = shadow_vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION;
+	inc_pc = shadow_vcpu->arch.flags & KVM_ARM64_INCREMENT_PC;
+
+	if (!pend_exception && inc_pc && !kvm_vcpu_dabt_iswrite(shadow_vcpu)) {
+		/* r0 as transfer register between the guest and the host. */
+		u64 rd_val = vcpu_get_reg(host_vcpu, 0);
+		int rd = kvm_vcpu_dabt_get_rd(shadow_vcpu);
+
+		vcpu_set_reg(shadow_vcpu, rd, rd_val);
+	}
+}
+
+static void handle_pvm_exit_wfx(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	host_vcpu->arch.ctxt.regs.pstate = shadow_vcpu->arch.ctxt.regs.pstate &
+		PSR_MODE_MASK;
+	host_vcpu->arch.fault.esr_el2 = shadow_vcpu->arch.fault.esr_el2;
+}
+
+static void handle_pvm_exit_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	u32 esr_el2 = shadow_vcpu->arch.fault.esr_el2;
+	bool is_write = (esr_el2 & ESR_ELx_SYS64_ISS_DIR_MASK) == ESR_ELx_SYS64_ISS_DIR_WRITE;
+
+	/* r0 as transfer register between the guest and the host. */
+	host_vcpu->arch.fault.esr_el2 = esr_el2 & ~ESR_ELx_SYS64_ISS_RT_MASK;
+
+	if (is_write) {
+		int rt = kvm_vcpu_sys_get_rt(shadow_vcpu);
+		u64 rt_val = vcpu_get_reg(shadow_vcpu, rt);
+
+		vcpu_set_reg(host_vcpu, 0, rt_val);
+	}
+}
+
+static int get_num_hvc_args(struct kvm_vcpu *vcpu)
+{
+	u32 psci_fn = smccc_get_function(vcpu);
+
+	switch (psci_fn) {
+	case PSCI_0_2_FN_CPU_ON:
+	case PSCI_0_2_FN64_CPU_ON:
+	case PSCI_0_2_FN_CPU_SUSPEND:
+	case PSCI_0_2_FN64_CPU_SUSPEND:
+		return 3;
+	case PSCI_0_2_FN_AFFINITY_INFO:
+	case PSCI_0_2_FN64_AFFINITY_INFO:
+	case PSCI_1_1_FN_SYSTEM_RESET2:
+	case PSCI_1_1_FN64_SYSTEM_RESET2:
+	case PSCI_1_0_FN_SYSTEM_SUSPEND:
+	case PSCI_1_0_FN64_SYSTEM_SUSPEND:
+		return 2;
+	case PSCI_1_0_FN_PSCI_FEATURES:
+	case PSCI_0_2_FN_MIGRATE:
+	case PSCI_0_2_FN64_MIGRATE:
+	case PSCI_1_0_FN_SET_SUSPEND_MODE:
+	case ARM_SMCCC_ARCH_FEATURES_FUNC_ID:
+	case ARM_SMCCC_TRNG_FEATURES:
+	case ARM_SMCCC_TRNG_RND32:
+	case ARM_SMCCC_TRNG_RND64:
+	case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID:
+	case ARM_SMCCC_HV_PV_TIME_FEATURES:
+		return 1;
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
+static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	int i;
+
+	host_vcpu->arch.fault.esr_el2 = shadow_vcpu->arch.fault.esr_el2;
+
+	/* Pass the hvc function id (r0) as well as any potential arguments. */
+	for (i = 0; i < get_num_hvc_args(shadow_vcpu) + 1; i++)
+		vcpu_set_reg(host_vcpu, i, vcpu_get_reg(shadow_vcpu, i));
+}
+
+static void handle_pvm_exit_abt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	host_vcpu->arch.ctxt.regs.pstate = shadow_vcpu->arch.ctxt.regs.pstate & PSR_MODE_MASK;
+	host_vcpu->arch.fault.esr_el2 = shadow_vcpu->arch.fault.esr_el2;
+	host_vcpu->arch.fault.far_el2 = shadow_vcpu->arch.fault.far_el2 & FAR_MASK;
+	host_vcpu->arch.fault.hpfar_el2 = shadow_vcpu->arch.fault.hpfar_el2;
+	__vcpu_sys_reg(host_vcpu, SCTLR_EL1) =
+		__vcpu_sys_reg(shadow_vcpu, SCTLR_EL1) & (SCTLR_ELx_EE | SCTLR_EL1_E0E);
+}
+
+static void handle_pvm_exit_dabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	handle_pvm_exit_abt(host_vcpu, shadow_vcpu);
+
+	/* r0 as transfer register between the guest and the host. */
+	host_vcpu->arch.fault.esr_el2 &= ~ESR_ELx_SRT_MASK;
+
+	/* TODO: don't expose anything if !MMIO (clear ESR_EL2.ISV) */
+	if (kvm_vcpu_dabt_iswrite(shadow_vcpu)) {
+		int rt = kvm_vcpu_dabt_get_rd(shadow_vcpu);
+		u64 rt_val = vcpu_get_reg(shadow_vcpu, rt);
+
+		vcpu_set_reg(host_vcpu, 0, rt_val);
+	}
+}
+
+static const shadow_entry_exit_handler_fn entry_shadow_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= NULL,
+	[ESR_ELx_EC_WFx]		= handle_pvm_entry_wfx,
+	[ESR_ELx_EC_HVC64]		= handle_pvm_entry_hvc64,
+	[ESR_ELx_EC_SYS64]		= handle_pvm_entry_sys64,
+	[ESR_ELx_EC_IABT_LOW]		= handle_pvm_entry_abt,
+	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_entry_dabt,
+};
+
+static const shadow_entry_exit_handler_fn exit_shadow_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= NULL,
+	[ESR_ELx_EC_WFx]		= handle_pvm_exit_wfx,
+	[ESR_ELx_EC_HVC64]		= handle_pvm_exit_hvc64,
+	[ESR_ELx_EC_SYS64]		= handle_pvm_exit_sys64,
+	[ESR_ELx_EC_IABT_LOW]		= handle_pvm_exit_abt,
+	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_exit_dabt,
+};
+
+static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
+{
+	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
+	u8 esr_ec;
+	shadow_entry_exit_handler_fn ec_handler;
+
+	switch (ARM_EXCEPTION_CODE(shadow_vcpu->arch.pkvm.exit_code)) {
+	case ARM_EXCEPTION_IRQ:
+		break;
+	case ARM_EXCEPTION_TRAP:
+		esr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(shadow_vcpu));
+		ec_handler = entry_shadow_handlers[esr_ec];
+
+		if (ec_handler)
+			ec_handler(host_vcpu, shadow_vcpu);
+
+		break;
+	default:
+		return false;
+	}
+
+	return true;
+}
+
+static void handle_shadow_exit(struct kvm_vcpu *shadow_vcpu)
+{
+	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
+	u8 esr_ec;
+	shadow_entry_exit_handler_fn ec_handler;
+
+	switch (shadow_vcpu->arch.pkvm.exit_code) {
+	case ARM_EXCEPTION_IRQ:
+		break;
+	case ARM_EXCEPTION_TRAP:
+		esr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(shadow_vcpu));
+		ec_handler = exit_shadow_handlers[esr_ec];
+
+		if (ec_handler)
+			ec_handler(host_vcpu, shadow_vcpu);
+
+		break;
+	default:
+		break;
+	}
+}
+
 static struct kvm_vcpu *get_shadow_vcpu(struct kvm_vcpu *host_vcpu)
 {
 	struct kvm_vcpu *shadow_vcpu;
@@ -32,6 +267,9 @@ static struct kvm_vcpu *get_shadow_vcpu(struct kvm_vcpu *host_vcpu)
 	shadow_vcpu = hyp_get_shadow_vcpu(host_vcpu);
 
 	if (shadow_vcpu) {
+		if (!handle_shadow_entry(shadow_vcpu))
+			return NULL;
+
 		shadow_vcpu->arch.pkvm.exit_code = 0;
 		return shadow_vcpu;
 	}
@@ -42,6 +280,7 @@ static struct kvm_vcpu *get_shadow_vcpu(struct kvm_vcpu *host_vcpu)
 static void put_shadow_vcpu(struct kvm_vcpu *shadow_vcpu, int exit_code)
 {
 	shadow_vcpu->arch.pkvm.exit_code = exit_code;
+	handle_shadow_exit(shadow_vcpu);
 }
 
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
-- 
GitLab


From 871ce72f04099d554cc68022b33af18932dfa9fa Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 19 Oct 2021 15:51:51 +0100
Subject: [PATCH 2654/4878] ANDROID: KVM: arm64: Move pkvm_vcpu_init_traps to
 shadow vcpu init

Move the initialization of traps to the initialization of the
shadow vcpu, and remove the associated hypercall.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: I4bf45733972ac54c72c40b3ef1df32cfe7d04a70
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h               | 1 -
 arch/arm64/kvm/arm.c                           | 8 --------
 arch/arm64/kvm/hyp/include/nvhe/trap_handler.h | 2 --
 arch/arm64/kvm/hyp/nvhe/hyp-main.c             | 8 --------
 arch/arm64/kvm/hyp/nvhe/pkvm.c                 | 3 ++-
 5 files changed, 2 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index bcb01c76b2609..14ebe7872ac70 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -74,7 +74,6 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_write_vmcr,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs,
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs,
-	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_init_traps,
 	__KVM_HOST_SMCCC_FUNC___pkvm_init_shadow,
 	__KVM_HOST_SMCCC_FUNC___pkvm_teardown_shadow,
 };
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 9f84abe2a562a..2ee5ae41a9526 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -656,14 +656,6 @@ int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 		static_branch_inc(&userspace_irqchip_in_use);
 	}
 
-	/*
-	 * Initialize traps for protected VMs.
-	 * NOTE: Move to run in EL2 directly, rather than via a hypercall, once
-	 * the code is in place for first run initialization at EL2.
-	 */
-	if (kvm_vm_is_protected(kvm))
-		kvm_call_hyp_nvhe(__pkvm_vcpu_init_traps, vcpu);
-
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h b/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h
index 45a84f0ade04b..1e6d995968a1f 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/trap_handler.h
@@ -15,6 +15,4 @@
 #define DECLARE_REG(type, name, ctxt, reg)	\
 				type name = (type)cpu_reg(ctxt, (reg))
 
-void __pkvm_vcpu_init_traps(struct kvm_vcpu *vcpu);
-
 #endif /* __ARM64_KVM_NVHE_TRAP_HANDLER_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index fe25bc647596c..46ea55349cba6 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -447,13 +447,6 @@ static void handle___pkvm_prot_finalize(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_prot_finalize();
 }
 
-static void handle___pkvm_vcpu_init_traps(struct kvm_cpu_context *host_ctxt)
-{
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
-
-	__pkvm_vcpu_init_traps(kern_hyp_va(vcpu));
-}
-
 static void handle___pkvm_init_shadow(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm *, host_kvm, host_ctxt, 1);
@@ -499,7 +492,6 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__vgic_v3_write_vmcr),
 	HANDLE_FUNC(__vgic_v3_save_aprs),
 	HANDLE_FUNC(__vgic_v3_restore_aprs),
-	HANDLE_FUNC(__pkvm_vcpu_init_traps),
 	HANDLE_FUNC(__pkvm_init_shadow),
 	HANDLE_FUNC(__pkvm_teardown_shadow),
 };
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 2e1839e72939f..34fc9039110f8 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -190,7 +190,7 @@ static void pvm_init_trap_regs(struct kvm_vcpu *vcpu)
 /*
  * Initialize trap register values for protected VMs.
  */
-void __pkvm_vcpu_init_traps(struct kvm_vcpu *vcpu)
+static void pkvm_vcpu_init_traps(struct kvm_vcpu *vcpu)
 {
 	pvm_init_trap_regs(vcpu);
 	pvm_init_traps_aa64pfr0(vcpu);
@@ -337,6 +337,7 @@ static void init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int n
 		kvm_reset_pvm_sys_regs(shadow_vcpu);
 
 		copy_features(shadow_vcpu, host_vcpu);
+		pkvm_vcpu_init_traps(shadow_vcpu);
 
 		vm->vcpus[i] = shadow_vcpu;
 		shadow_state->vm = vm;
-- 
GitLab


From 7a2a87a002eaaee817e32e349a164b55be133662 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 7 Oct 2021 15:17:53 +0100
Subject: [PATCH 2655/4878] ANDROID: KVM: arm64: Merge vmcr/apr save/restore

Merge the functions to save and restore vmcr and apr. This can in some
cases reduce the number of hypercalls necessary to load/put the vgic
state in nVHE and will also ease its management in protected mode later
on.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Id85f0698a7a346282e55c15993c274828bd5309c
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h   |  8 ++------
 arch/arm64/include/asm/kvm_hyp.h   |  4 ++--
 arch/arm64/kvm/arm.c               |  7 +++----
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 24 ++++++------------------
 arch/arm64/kvm/hyp/vgic-v3-sr.c    | 27 +++++++++++++++++++++++----
 arch/arm64/kvm/vgic/vgic-v2.c      |  9 +--------
 arch/arm64/kvm/vgic/vgic-v3.c      | 26 ++++----------------------
 arch/arm64/kvm/vgic/vgic.c         | 17 +++--------------
 arch/arm64/kvm/vgic/vgic.h         |  6 ++----
 include/kvm/arm_vgic.h             |  3 +--
 10 files changed, 47 insertions(+), 84 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 14ebe7872ac70..57b4ec3c5f558 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -70,10 +70,8 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___kvm_tlb_flush_vmid,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_cpu_context,
 	__KVM_HOST_SMCCC_FUNC___kvm_timer_set_cntvoff,
-	__KVM_HOST_SMCCC_FUNC___vgic_v3_read_vmcr,
-	__KVM_HOST_SMCCC_FUNC___vgic_v3_write_vmcr,
-	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_aprs,
-	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_aprs,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_save_vmcr_aprs,
+	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_vmcr_aprs,
 	__KVM_HOST_SMCCC_FUNC___pkvm_init_shadow,
 	__KVM_HOST_SMCCC_FUNC___pkvm_teardown_shadow,
 };
@@ -214,8 +212,6 @@ extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
 extern void __kvm_adjust_pc(struct kvm_vcpu *vcpu);
 
 extern u64 __vgic_v3_get_gic_config(void);
-extern u64 __vgic_v3_read_vmcr(void);
-extern void __vgic_v3_write_vmcr(u32 vmcr);
 extern void __vgic_v3_init_lrs(void);
 
 extern u64 __kvm_get_mdcr_el2(void);
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index c8d51e2db879b..328ce108d0f14 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -61,8 +61,8 @@ void __vgic_v3_save_state(struct vgic_v3_cpu_if *cpu_if);
 void __vgic_v3_restore_state(struct vgic_v3_cpu_if *cpu_if);
 void __vgic_v3_activate_traps(struct vgic_v3_cpu_if *cpu_if);
 void __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if);
-void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if);
-void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_save_vmcr_aprs(struct vgic_v3_cpu_if *cpu_if);
+void __vgic_v3_restore_vmcr_aprs(struct vgic_v3_cpu_if *cpu_if);
 int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu);
 
 #ifdef __KVM_NVHE_HYPERVISOR__
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2ee5ae41a9526..6ec58f4fe4480 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -395,15 +395,14 @@ void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
 	 * doorbells to be signalled, should an interrupt become pending.
 	 */
 	preempt_disable();
-	kvm_vgic_vmcr_sync(vcpu);
-	vgic_v4_put(vcpu, true);
+	kvm_vgic_put(vcpu, true);
 	preempt_enable();
 }
 
 void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
 {
 	preempt_disable();
-	vgic_v4_load(vcpu);
+	kvm_vgic_load(vcpu);
 	preempt_enable();
 }
 
@@ -457,7 +456,7 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 	if (has_vhe())
 		kvm_vcpu_put_sysregs_vhe(vcpu);
 	kvm_timer_vcpu_put(vcpu);
-	kvm_vgic_put(vcpu);
+	kvm_vgic_put(vcpu, false);
 	kvm_vcpu_pmu_restore_host(vcpu);
 
 	vcpu->cpu = -1;
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 46ea55349cba6..d9d9fa27fd8ee 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -360,16 +360,6 @@ static void handle___vgic_v3_get_gic_config(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __vgic_v3_get_gic_config();
 }
 
-static void handle___vgic_v3_read_vmcr(struct kvm_cpu_context *host_ctxt)
-{
-	cpu_reg(host_ctxt, 1) = __vgic_v3_read_vmcr();
-}
-
-static void handle___vgic_v3_write_vmcr(struct kvm_cpu_context *host_ctxt)
-{
-	__vgic_v3_write_vmcr(cpu_reg(host_ctxt, 1));
-}
-
 static void handle___vgic_v3_init_lrs(struct kvm_cpu_context *host_ctxt)
 {
 	__vgic_v3_init_lrs();
@@ -380,18 +370,18 @@ static void handle___kvm_get_mdcr_el2(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __kvm_get_mdcr_el2();
 }
 
-static void handle___vgic_v3_save_aprs(struct kvm_cpu_context *host_ctxt)
+static void handle___vgic_v3_save_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct vgic_v3_cpu_if *, cpu_if, host_ctxt, 1);
 
-	__vgic_v3_save_aprs(kern_hyp_va(cpu_if));
+	__vgic_v3_save_vmcr_aprs(kern_hyp_va(cpu_if));
 }
 
-static void handle___vgic_v3_restore_aprs(struct kvm_cpu_context *host_ctxt)
+static void handle___vgic_v3_restore_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct vgic_v3_cpu_if *, cpu_if, host_ctxt, 1);
 
-	__vgic_v3_restore_aprs(kern_hyp_va(cpu_if));
+	__vgic_v3_restore_vmcr_aprs(kern_hyp_va(cpu_if));
 }
 
 static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
@@ -488,10 +478,8 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__kvm_tlb_flush_vmid),
 	HANDLE_FUNC(__kvm_flush_cpu_context),
 	HANDLE_FUNC(__kvm_timer_set_cntvoff),
-	HANDLE_FUNC(__vgic_v3_read_vmcr),
-	HANDLE_FUNC(__vgic_v3_write_vmcr),
-	HANDLE_FUNC(__vgic_v3_save_aprs),
-	HANDLE_FUNC(__vgic_v3_restore_aprs),
+	HANDLE_FUNC(__vgic_v3_save_vmcr_aprs),
+	HANDLE_FUNC(__vgic_v3_restore_vmcr_aprs),
 	HANDLE_FUNC(__pkvm_init_shadow),
 	HANDLE_FUNC(__pkvm_teardown_shadow),
 };
diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index 20db2f281cf23..4c8ebcd31bb71 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -330,7 +330,7 @@ void __vgic_v3_deactivate_traps(struct vgic_v3_cpu_if *cpu_if)
 		write_gicreg(0, ICH_HCR_EL2);
 }
 
-void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if)
+static void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
 	u64 val;
 	u32 nr_pre_bits;
@@ -363,7 +363,7 @@ void __vgic_v3_save_aprs(struct vgic_v3_cpu_if *cpu_if)
 	}
 }
 
-void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if)
+static void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if)
 {
 	u64 val;
 	u32 nr_pre_bits;
@@ -455,16 +455,35 @@ u64 __vgic_v3_get_gic_config(void)
 	return val;
 }
 
-u64 __vgic_v3_read_vmcr(void)
+static u64 __vgic_v3_read_vmcr(void)
 {
 	return read_gicreg(ICH_VMCR_EL2);
 }
 
-void __vgic_v3_write_vmcr(u32 vmcr)
+static void __vgic_v3_write_vmcr(u32 vmcr)
 {
 	write_gicreg(vmcr, ICH_VMCR_EL2);
 }
 
+void __vgic_v3_save_vmcr_aprs(struct vgic_v3_cpu_if *cpu_if)
+{
+	__vgic_v3_save_aprs(cpu_if);
+	if (cpu_if->vgic_sre)
+		cpu_if->vgic_vmcr = __vgic_v3_read_vmcr();
+}
+
+void __vgic_v3_restore_vmcr_aprs(struct vgic_v3_cpu_if *cpu_if)
+{
+	/*
+	 * If dealing with a GICv2 emulation on GICv3, VMCR_EL2.VFIQen
+	 * is dependent on ICC_SRE_EL1.SRE, and we have to perform the
+	 * VMCR_EL2 save/restore in the world switch.
+	 */
+	if (cpu_if->vgic_sre)
+		__vgic_v3_write_vmcr(cpu_if->vgic_vmcr);
+	__vgic_v3_restore_aprs(cpu_if);
+}
+
 static int __vgic_v3_bpr_min(void)
 {
 	/* See Pseudocode for VPriorityGroup */
diff --git a/arch/arm64/kvm/vgic/vgic-v2.c b/arch/arm64/kvm/vgic/vgic-v2.c
index 645648349c99b..4e8bb90bd96f7 100644
--- a/arch/arm64/kvm/vgic/vgic-v2.c
+++ b/arch/arm64/kvm/vgic/vgic-v2.c
@@ -470,17 +470,10 @@ void vgic_v2_load(struct kvm_vcpu *vcpu)
 		       kvm_vgic_global_state.vctrl_base + GICH_APR);
 }
 
-void vgic_v2_vmcr_sync(struct kvm_vcpu *vcpu)
+void vgic_v2_put(struct kvm_vcpu *vcpu, bool blocking)
 {
 	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
 
 	cpu_if->vgic_vmcr = readl_relaxed(kvm_vgic_global_state.vctrl_base + GICH_VMCR);
-}
-
-void vgic_v2_put(struct kvm_vcpu *vcpu)
-{
-	struct vgic_v2_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v2;
-
-	vgic_v2_vmcr_sync(vcpu);
 	cpu_if->vgic_apr = readl_relaxed(kvm_vgic_global_state.vctrl_base + GICH_APR);
 }
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 78cf674c1230b..9fc83f9e8283f 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -707,15 +707,7 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 {
 	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 
-	/*
-	 * If dealing with a GICv2 emulation on GICv3, VMCR_EL2.VFIQen
-	 * is dependent on ICC_SRE_EL1.SRE, and we have to perform the
-	 * VMCR_EL2 save/restore in the world switch.
-	 */
-	if (likely(cpu_if->vgic_sre))
-		kvm_call_hyp(__vgic_v3_write_vmcr, cpu_if->vgic_vmcr);
-
-	kvm_call_hyp(__vgic_v3_restore_aprs, cpu_if);
+	kvm_call_hyp(__vgic_v3_restore_vmcr_aprs, cpu_if);
 
 	if (has_vhe())
 		__vgic_v3_activate_traps(cpu_if);
@@ -723,23 +715,13 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 	WARN_ON(vgic_v4_load(vcpu));
 }
 
-void vgic_v3_vmcr_sync(struct kvm_vcpu *vcpu)
+void vgic_v3_put(struct kvm_vcpu *vcpu, bool blocking)
 {
 	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 
-	if (likely(cpu_if->vgic_sre))
-		cpu_if->vgic_vmcr = kvm_call_hyp_ret(__vgic_v3_read_vmcr);
-}
-
-void vgic_v3_put(struct kvm_vcpu *vcpu)
-{
-	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
-
-	WARN_ON(vgic_v4_put(vcpu, false));
-
-	vgic_v3_vmcr_sync(vcpu);
+	WARN_ON(vgic_v4_put(vcpu, blocking));
 
-	kvm_call_hyp(__vgic_v3_save_aprs, cpu_if);
+	kvm_call_hyp(__vgic_v3_save_vmcr_aprs, cpu_if);
 
 	if (has_vhe())
 		__vgic_v3_deactivate_traps(cpu_if);
diff --git a/arch/arm64/kvm/vgic/vgic.c b/arch/arm64/kvm/vgic/vgic.c
index 5dad4996cfb22..0bf570eb46222 100644
--- a/arch/arm64/kvm/vgic/vgic.c
+++ b/arch/arm64/kvm/vgic/vgic.c
@@ -931,26 +931,15 @@ void kvm_vgic_load(struct kvm_vcpu *vcpu)
 		vgic_v3_load(vcpu);
 }
 
-void kvm_vgic_put(struct kvm_vcpu *vcpu)
+void kvm_vgic_put(struct kvm_vcpu *vcpu, bool blocking)
 {
 	if (unlikely(!vgic_initialized(vcpu->kvm)))
 		return;
 
 	if (kvm_vgic_global_state.type == VGIC_V2)
-		vgic_v2_put(vcpu);
+		vgic_v2_put(vcpu, blocking);
 	else
-		vgic_v3_put(vcpu);
-}
-
-void kvm_vgic_vmcr_sync(struct kvm_vcpu *vcpu)
-{
-	if (unlikely(!irqchip_in_kernel(vcpu->kvm)))
-		return;
-
-	if (kvm_vgic_global_state.type == VGIC_V2)
-		vgic_v2_vmcr_sync(vcpu);
-	else
-		vgic_v3_vmcr_sync(vcpu);
+		vgic_v3_put(vcpu, blocking);
 }
 
 int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu)
diff --git a/arch/arm64/kvm/vgic/vgic.h b/arch/arm64/kvm/vgic/vgic.h
index 3fd6c86a7ef34..947985b3b03e9 100644
--- a/arch/arm64/kvm/vgic/vgic.h
+++ b/arch/arm64/kvm/vgic/vgic.h
@@ -196,8 +196,7 @@ int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address,
 
 void vgic_v2_init_lrs(void);
 void vgic_v2_load(struct kvm_vcpu *vcpu);
-void vgic_v2_put(struct kvm_vcpu *vcpu);
-void vgic_v2_vmcr_sync(struct kvm_vcpu *vcpu);
+void vgic_v2_put(struct kvm_vcpu *vcpu, bool blocking);
 
 void vgic_v2_save_state(struct kvm_vcpu *vcpu);
 void vgic_v2_restore_state(struct kvm_vcpu *vcpu);
@@ -227,8 +226,7 @@ int vgic_register_redist_iodev(struct kvm_vcpu *vcpu);
 bool vgic_v3_check_base(struct kvm *kvm);
 
 void vgic_v3_load(struct kvm_vcpu *vcpu);
-void vgic_v3_put(struct kvm_vcpu *vcpu);
-void vgic_v3_vmcr_sync(struct kvm_vcpu *vcpu);
+void vgic_v3_put(struct kvm_vcpu *vcpu, bool blocking);
 
 bool vgic_has_its(struct kvm *kvm);
 int kvm_vgic_register_its_device(void);
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index bb30a6803d9f0..65e09c3924be3 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -380,8 +380,7 @@ bool kvm_vgic_map_is_active(struct kvm_vcpu *vcpu, unsigned int vintid);
 int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu);
 
 void kvm_vgic_load(struct kvm_vcpu *vcpu);
-void kvm_vgic_put(struct kvm_vcpu *vcpu);
-void kvm_vgic_vmcr_sync(struct kvm_vcpu *vcpu);
+void kvm_vgic_put(struct kvm_vcpu *vcpu, bool blocking);
 
 #define irqchip_in_kernel(k)	(!!((k)->arch.vgic.in_kernel))
 #define vgic_initialized(k)	((k)->arch.vgic.initialized)
-- 
GitLab


From 3784299dcededddd18a8989440b141a97d537515 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 8 Oct 2021 16:09:38 +0100
Subject: [PATCH 2656/4878] ANDROID: KVM: arm64: Move vgic state between host
 and shadow vcpu structures

Now that protected VMs have a shadow state maintained at EL2 in nVHE
protected mode, make sure to sync and flush the vgic state between host
and hyp data structure upon entry and exit from a guest.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I8d7ab950041a5cd79217c9ee0e04742a27439a99
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 91 +++++++++++++++++++++++++++++-
 arch/arm64/kvm/vgic/vgic-v3.c      |  6 +-
 2 files changed, 93 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index d9d9fa27fd8ee..a5bdee91344e6 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -20,6 +20,7 @@
 #include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
+#include <linux/irqchip/arm-gic-v3.h>
 #include <uapi/linux/psci.h>
 
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
@@ -213,12 +214,53 @@ static const shadow_entry_exit_handler_fn exit_shadow_handlers[] = {
 	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_exit_dabt,
 };
 
+static void flush_vgic_state(struct kvm_vcpu *host_vcpu,
+			     struct kvm_vcpu *shadow_vcpu)
+{
+	struct vgic_v3_cpu_if *host_cpu_if, *shadow_cpu_if;
+	unsigned int used_lrs, max_lrs, i;
+
+	host_cpu_if	= &host_vcpu->arch.vgic_cpu.vgic_v3;
+	shadow_cpu_if	= &shadow_vcpu->arch.vgic_cpu.vgic_v3;
+
+	max_lrs = (read_gicreg(ICH_VTR_EL2) & 0xf) + 1;
+	used_lrs = READ_ONCE(host_cpu_if->used_lrs);
+	used_lrs = min(used_lrs, max_lrs);
+
+	shadow_cpu_if->vgic_hcr	= host_cpu_if->vgic_hcr;
+	/* Should be a one-off */
+	shadow_cpu_if->vgic_sre = (ICC_SRE_EL1_DIB |
+				   ICC_SRE_EL1_DFB |
+				   ICC_SRE_EL1_SRE);
+	shadow_cpu_if->used_lrs	= used_lrs;
+
+	for (i = 0; i < used_lrs; i++)
+		shadow_cpu_if->vgic_lr[i] = host_cpu_if->vgic_lr[i];
+}
+
+static void sync_vgic_state(struct kvm_vcpu *host_vcpu,
+			    struct kvm_vcpu *shadow_vcpu)
+{
+	struct vgic_v3_cpu_if *host_cpu_if, *shadow_cpu_if;
+	unsigned int i;
+
+	host_cpu_if	= &host_vcpu->arch.vgic_cpu.vgic_v3;
+	shadow_cpu_if	= &shadow_vcpu->arch.vgic_cpu.vgic_v3;
+
+	host_cpu_if->vgic_hcr	= shadow_cpu_if->vgic_hcr;
+
+	for (i = 0; i < shadow_cpu_if->used_lrs; i++)
+		host_cpu_if->vgic_lr[i] = shadow_cpu_if->vgic_lr[i];
+}
+
 static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
 {
 	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
 	u8 esr_ec;
 	shadow_entry_exit_handler_fn ec_handler;
 
+	flush_vgic_state(host_vcpu, shadow_vcpu);
+
 	switch (ARM_EXCEPTION_CODE(shadow_vcpu->arch.pkvm.exit_code)) {
 	case ARM_EXCEPTION_IRQ:
 		break;
@@ -243,6 +285,8 @@ static void handle_shadow_exit(struct kvm_vcpu *shadow_vcpu)
 	u8 esr_ec;
 	shadow_entry_exit_handler_fn ec_handler;
 
+	sync_vgic_state(host_vcpu, shadow_vcpu);
+
 	switch (shadow_vcpu->arch.pkvm.exit_code) {
 	case ARM_EXCEPTION_IRQ:
 		break;
@@ -370,18 +414,61 @@ static void handle___kvm_get_mdcr_el2(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __kvm_get_mdcr_el2();
 }
 
+static struct vgic_v3_cpu_if *get_shadow_vgic_v3_cpu_if(struct vgic_v3_cpu_if *cpu_if)
+{
+	struct kvm_vcpu *vcpu, *shadow_vcpu;
+
+	vcpu = container_of(cpu_if, struct kvm_vcpu, arch.vgic_cpu.vgic_v3);
+	shadow_vcpu = hyp_get_shadow_vcpu(vcpu);
+	if (!shadow_vcpu)
+		return cpu_if;
+	return &shadow_vcpu->arch.vgic_cpu.vgic_v3;
+}
+
 static void handle___vgic_v3_save_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct vgic_v3_cpu_if *, cpu_if, host_ctxt, 1);
+	struct vgic_v3_cpu_if *shadow_cpu_if;
+
+	cpu_if = kern_hyp_va(cpu_if);
+	shadow_cpu_if = get_shadow_vgic_v3_cpu_if(cpu_if);
+
+	__vgic_v3_save_vmcr_aprs(shadow_cpu_if);
 
-	__vgic_v3_save_vmcr_aprs(kern_hyp_va(cpu_if));
+	if (cpu_if != shadow_cpu_if) {
+		int i;
+
+		cpu_if->vgic_vmcr = shadow_cpu_if->vgic_vmcr;
+		for (i = 0; i < ARRAY_SIZE(cpu_if->vgic_ap0r); i++) {
+			cpu_if->vgic_ap0r[i] = shadow_cpu_if->vgic_ap0r[i];
+			cpu_if->vgic_ap1r[i] = shadow_cpu_if->vgic_ap1r[i];
+		}
+	}
 }
 
 static void handle___vgic_v3_restore_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct vgic_v3_cpu_if *, cpu_if, host_ctxt, 1);
+	struct vgic_v3_cpu_if *shadow_cpu_if;
+
+	cpu_if = kern_hyp_va(cpu_if);
+	shadow_cpu_if = get_shadow_vgic_v3_cpu_if(cpu_if);
+
+	if (cpu_if != shadow_cpu_if) {
+		int i;
+
+		shadow_cpu_if->vgic_vmcr = cpu_if->vgic_vmcr;
+		/* Should be a one-off */
+		shadow_cpu_if->vgic_sre = (ICC_SRE_EL1_DIB |
+					   ICC_SRE_EL1_DFB |
+					   ICC_SRE_EL1_SRE);
+		for (i = 0; i < ARRAY_SIZE(cpu_if->vgic_ap0r); i++) {
+			shadow_cpu_if->vgic_ap0r[i] = cpu_if->vgic_ap0r[i];
+			shadow_cpu_if->vgic_ap1r[i] = cpu_if->vgic_ap1r[i];
+		}
+	}
 
-	__vgic_v3_restore_vmcr_aprs(kern_hyp_va(cpu_if));
+	__vgic_v3_restore_vmcr_aprs(shadow_cpu_if);
 }
 
 static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 9fc83f9e8283f..98dd20d3fb847 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -707,7 +707,8 @@ void vgic_v3_load(struct kvm_vcpu *vcpu)
 {
 	struct vgic_v3_cpu_if *cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
 
-	kvm_call_hyp(__vgic_v3_restore_vmcr_aprs, cpu_if);
+	if (likely(!is_protected_kvm_enabled()))
+		kvm_call_hyp(__vgic_v3_restore_vmcr_aprs, cpu_if);
 
 	if (has_vhe())
 		__vgic_v3_activate_traps(cpu_if);
@@ -721,7 +722,8 @@ void vgic_v3_put(struct kvm_vcpu *vcpu, bool blocking)
 
 	WARN_ON(vgic_v4_put(vcpu, blocking));
 
-	kvm_call_hyp(__vgic_v3_save_vmcr_aprs, cpu_if);
+	if (likely(!is_protected_kvm_enabled()))
+		kvm_call_hyp(__vgic_v3_save_vmcr_aprs, cpu_if);
 
 	if (has_vhe())
 		__vgic_v3_deactivate_traps(cpu_if);
-- 
GitLab


From be1849348b0d1c63deca60d36aa2caa5d6ae3abd Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 12 Oct 2021 17:46:25 +0100
Subject: [PATCH 2657/4878] ANDROID: KVM: arm64: Save/restore virtual timer
 state from the shadow vcpu

Similar to the vgic state, make sure to sync and flush the virtual timer
state between the host and the hyp shadow vCPU structs when running in
nVHE protected mode.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Ib90273bb670d9d815dd9f542369dde00753655cf
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/arch_timer.c        |  7 ++++++-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 24 ++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/arch_timer.c b/arch/arm64/kvm/arch_timer.c
index 3df67c1274898..b81944f25fc8b 100644
--- a/arch/arm64/kvm/arch_timer.c
+++ b/arch/arm64/kvm/arch_timer.c
@@ -88,7 +88,9 @@ static u64 timer_get_offset(struct arch_timer_context *ctxt)
 
 	switch(arch_timer_ctx_index(ctxt)) {
 	case TIMER_VTIMER:
-		return __vcpu_sys_reg(vcpu, CNTVOFF_EL2);
+		if (likely(!kvm_vm_is_protected(vcpu->kvm)))
+			return __vcpu_sys_reg(vcpu, CNTVOFF_EL2);
+		fallthrough;
 	default:
 		return 0;
 	}
@@ -754,6 +756,9 @@ static void update_vtimer_cntvoff(struct kvm_vcpu *vcpu, u64 cntvoff)
 	struct kvm *kvm = vcpu->kvm;
 	struct kvm_vcpu *tmp;
 
+	if (unlikely(kvm_vm_is_protected(vcpu->kvm)))
+		cntvoff = 0;
+
 	mutex_lock(&kvm->lock);
 	kvm_for_each_vcpu(i, tmp, kvm)
 		timer_set_offset(vcpu_vtimer(tmp), cntvoff);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index a5bdee91344e6..13870bc5d4d05 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -253,6 +253,28 @@ static void sync_vgic_state(struct kvm_vcpu *host_vcpu,
 		host_cpu_if->vgic_lr[i] = shadow_cpu_if->vgic_lr[i];
 }
 
+static void flush_timer_state(struct kvm_vcpu *shadow_vcpu)
+{
+	/*
+	 * A shadow vcpu has no offset, and sees vtime == ptime. The
+	 * ptimer is fully emulated by EL1 and cannot be trusted.
+	 */
+	write_sysreg(0, cntvoff_el2);
+	isb();
+	write_sysreg_el0(__vcpu_sys_reg(shadow_vcpu, CNTV_CVAL_EL0), SYS_CNTV_CVAL);
+	write_sysreg_el0(__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0), SYS_CNTV_CTL);
+}
+
+static void sync_timer_state(struct kvm_vcpu *shadow_vcpu)
+{
+	/*
+	 * Preserve the vtimer state so that it is always correct,
+	 * even if the host tries to make a mess.
+	 */
+	__vcpu_sys_reg(shadow_vcpu, CNTV_CVAL_EL0) = read_sysreg_el0(SYS_CNTV_CVAL);
+	__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0) = read_sysreg_el0(SYS_CNTV_CTL);
+}
+
 static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
 {
 	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
@@ -260,6 +282,7 @@ static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
 	shadow_entry_exit_handler_fn ec_handler;
 
 	flush_vgic_state(host_vcpu, shadow_vcpu);
+	flush_timer_state(shadow_vcpu);
 
 	switch (ARM_EXCEPTION_CODE(shadow_vcpu->arch.pkvm.exit_code)) {
 	case ARM_EXCEPTION_IRQ:
@@ -286,6 +309,7 @@ static void handle_shadow_exit(struct kvm_vcpu *shadow_vcpu)
 	shadow_entry_exit_handler_fn ec_handler;
 
 	sync_vgic_state(host_vcpu, shadow_vcpu);
+	sync_timer_state(shadow_vcpu);
 
 	switch (shadow_vcpu->arch.pkvm.exit_code) {
 	case ARM_EXCEPTION_IRQ:
-- 
GitLab


From 7b2e541a631012aa6c7dc6db1a60c9ef53fe1ac4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 18 Oct 2021 16:02:30 +0100
Subject: [PATCH 2658/4878] ANDROID: KVM: arm64: pkvm: Introduce
 __pkvm_{load,put}_vcpu()

Introduce two new hypercalls for the nVHE protected mode allowing the
host to load and put the vCPU state, following the usual split between
vcpu_{load,put}() and vcpu_run() in KVM.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I34a19c96221c9a54ed142803b8f18f2c63511c57
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h   |   2 +
 arch/arm64/kvm/arm.c               |  12 +++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 138 +++++++++++++++++++++--------
 3 files changed, 114 insertions(+), 38 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 57b4ec3c5f558..83cf597c95c70 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -74,6 +74,8 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___vgic_v3_restore_vmcr_aprs,
 	__KVM_HOST_SMCCC_FUNC___pkvm_init_shadow,
 	__KVM_HOST_SMCCC_FUNC___pkvm_teardown_shadow,
+	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_load,
+	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_put,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 6ec58f4fe4480..c0aee2763508b 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -447,10 +447,22 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	if (vcpu_has_ptrauth(vcpu))
 		vcpu_ptrauth_disable(vcpu);
 	kvm_arch_vcpu_load_debug_state_flags(vcpu);
+
+	if (is_protected_kvm_enabled()) {
+		kvm_call_hyp_nvhe(__pkvm_vcpu_load, vcpu);
+		kvm_call_hyp(__vgic_v3_restore_vmcr_aprs,
+			     &vcpu->arch.vgic_cpu.vgic_v3);
+	}
 }
 
 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 {
+	if (is_protected_kvm_enabled()) {
+		kvm_call_hyp(__vgic_v3_save_vmcr_aprs,
+			     &vcpu->arch.vgic_cpu.vgic_v3);
+		kvm_call_hyp_nvhe(__pkvm_vcpu_put, vcpu);
+	}
+
 	kvm_arch_vcpu_put_debug_state_flags(vcpu);
 	kvm_arch_vcpu_put_fp(vcpu);
 	if (has_vhe())
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 13870bc5d4d05..6c6a9be692904 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -275,7 +275,7 @@ static void sync_timer_state(struct kvm_vcpu *shadow_vcpu)
 	__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0) = read_sysreg_el0(SYS_CNTV_CTL);
 }
 
-static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
+static void flush_shadow_state(struct kvm_vcpu *shadow_vcpu)
 {
 	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
 	u8 esr_ec;
@@ -286,6 +286,8 @@ static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
 
 	switch (ARM_EXCEPTION_CODE(shadow_vcpu->arch.pkvm.exit_code)) {
 	case ARM_EXCEPTION_IRQ:
+	case ARM_EXCEPTION_EL1_SERROR:
+	case ARM_EXCEPTION_IL:
 		break;
 	case ARM_EXCEPTION_TRAP:
 		esr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(shadow_vcpu));
@@ -296,13 +298,13 @@ static bool handle_shadow_entry(struct kvm_vcpu *shadow_vcpu)
 
 		break;
 	default:
-		return false;
+		BUG();
 	}
 
-	return true;
+	shadow_vcpu->arch.pkvm.exit_code = 0;
 }
 
-static void handle_shadow_exit(struct kvm_vcpu *shadow_vcpu)
+static void sync_shadow_state(struct kvm_vcpu *shadow_vcpu, u32 exit_reason)
 {
 	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
 	u8 esr_ec;
@@ -311,7 +313,7 @@ static void handle_shadow_exit(struct kvm_vcpu *shadow_vcpu)
 	sync_vgic_state(host_vcpu, shadow_vcpu);
 	sync_timer_state(shadow_vcpu);
 
-	switch (shadow_vcpu->arch.pkvm.exit_code) {
+	switch (ARM_EXCEPTION_CODE(exit_reason)) {
 	case ARM_EXCEPTION_IRQ:
 		break;
 	case ARM_EXCEPTION_TRAP:
@@ -322,46 +324,82 @@ static void handle_shadow_exit(struct kvm_vcpu *shadow_vcpu)
 			ec_handler(host_vcpu, shadow_vcpu);
 
 		break;
-	default:
+	case ARM_EXCEPTION_EL1_SERROR:
+	case ARM_EXCEPTION_IL:
 		break;
+	default:
+		BUG();
 	}
+
+	host_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION | KVM_ARM64_INCREMENT_PC);
+	shadow_vcpu->arch.pkvm.exit_code = exit_reason;
 }
 
-static struct kvm_vcpu *get_shadow_vcpu(struct kvm_vcpu *host_vcpu)
+struct pkvm_loaded_state {
+	/* loaded vcpu is HYP VA */
+	struct kvm_vcpu	*vcpu;
+	bool		is_shadow;
+};
+
+static DEFINE_PER_CPU(struct pkvm_loaded_state, loaded_state);
+
+static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 {
-	struct kvm_vcpu *shadow_vcpu;
+	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+	struct pkvm_loaded_state *state;
 
-	host_vcpu = kern_hyp_va(host_vcpu);
-	shadow_vcpu = hyp_get_shadow_vcpu(host_vcpu);
+	/* Why did you bother? */
+	if (!is_protected_kvm_enabled())
+		return;
 
-	if (shadow_vcpu) {
-		if (!handle_shadow_entry(shadow_vcpu))
-			return NULL;
+	state = this_cpu_ptr(&loaded_state);
 
-		shadow_vcpu->arch.pkvm.exit_code = 0;
-		return shadow_vcpu;
-	}
+	/* Nice try */
+	if (state->vcpu)
+		return;
+
+	vcpu = kern_hyp_va(vcpu);
 
-	return host_vcpu;
+	state->vcpu = hyp_get_shadow_vcpu(vcpu) ?: vcpu;
+	state->is_shadow = state->vcpu != vcpu;
+
+	if (state->is_shadow) {
+		/* FIXME: we can't trust the validity of these pointers */
+		state->vcpu->arch.host_fpsimd_state = vcpu->arch.host_fpsimd_state;
+
+		/* Propagate WFx trapping flags, trap ptrauth */
+		state->vcpu->arch.hcr_el2 &= ~(HCR_TWE | HCR_TWI |
+					       HCR_API | HCR_APK);
+		state->vcpu->arch.hcr_el2 |= vcpu->arch.hcr_el2 & (HCR_TWE | HCR_TWI);
+	}
 }
 
-static void put_shadow_vcpu(struct kvm_vcpu *shadow_vcpu, int exit_code)
+static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 {
-	shadow_vcpu->arch.pkvm.exit_code = exit_code;
-	handle_shadow_exit(shadow_vcpu);
+	struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+
+	/* "It's over and done with..." */
+	state->vcpu = NULL;
 }
 
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
-	struct kvm_vcpu *shadow_vcpu;
 	int ret;
 
-	shadow_vcpu = get_shadow_vcpu(vcpu);
-	ret = __kvm_vcpu_run(shadow_vcpu);
+	if (unlikely(is_protected_kvm_enabled())) {
+		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-	if (shadow_vcpu != kern_hyp_va(vcpu))
-		put_shadow_vcpu(shadow_vcpu, ret);
+		if (state->is_shadow)
+			flush_shadow_state(state->vcpu);
+
+		ret = __kvm_vcpu_run(state->vcpu);
+
+		if (state->is_shadow)
+			sync_shadow_state(state->vcpu, ret);
+	} else {
+		ret = __kvm_vcpu_run(kern_hyp_va(vcpu));
+	}
 
 	cpu_reg(host_ctxt, 1) =  ret;
 }
@@ -370,13 +408,19 @@ static void handle___kvm_adjust_pc(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
 
-	/*
-	 * This get_shadow_vcpu() shouldn't exist, as we would never
-	 * commit a pending update before returning to userspace, and
-	 * this is an actual attack vector (it leaves EL1 in full
-	 * control of PC).
-	 */
-	vcpu = get_shadow_vcpu(vcpu);
+	vcpu = kern_hyp_va(vcpu);
+
+	if (unlikely(is_protected_kvm_enabled())) {
+		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+
+		/*
+		 * A shadow vcpu can never be updated from EL1, and we
+		 * must have a vcpu loaded when protected mode is
+		 * enabled.
+		 */
+		if (!state->vcpu || state->is_shadow || state->vcpu != vcpu)
+			return;
+	}
 
 	__kvm_adjust_pc(vcpu);
 }
@@ -440,13 +484,29 @@ static void handle___kvm_get_mdcr_el2(struct kvm_cpu_context *host_ctxt)
 
 static struct vgic_v3_cpu_if *get_shadow_vgic_v3_cpu_if(struct vgic_v3_cpu_if *cpu_if)
 {
-	struct kvm_vcpu *vcpu, *shadow_vcpu;
+	if (unlikely(is_protected_kvm_enabled())) {
+		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+		struct kvm_vcpu *host_vcpu;
+
+		if (!state->vcpu)
+			return NULL;
+
+		if (state->is_shadow) {
+			host_vcpu = state->vcpu->arch.pkvm.host_vcpu;
+
+			if (&host_vcpu->arch.vgic_cpu.vgic_v3 != cpu_if)
+				return NULL;
+
+			return &state->vcpu->arch.vgic_cpu.vgic_v3;
+		} else {
+			if (&state->vcpu->arch.vgic_cpu.vgic_v3 != cpu_if)
+				return NULL;
+
+			return cpu_if;
+		}
+	}
 
-	vcpu = container_of(cpu_if, struct kvm_vcpu, arch.vgic_cpu.vgic_v3);
-	shadow_vcpu = hyp_get_shadow_vcpu(vcpu);
-	if (!shadow_vcpu)
-		return cpu_if;
-	return &shadow_vcpu->arch.vgic_cpu.vgic_v3;
+	return cpu_if;
 }
 
 static void handle___vgic_v3_save_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
@@ -593,6 +653,8 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__vgic_v3_restore_vmcr_aprs),
 	HANDLE_FUNC(__pkvm_init_shadow),
 	HANDLE_FUNC(__pkvm_teardown_shadow),
+	HANDLE_FUNC(__pkvm_vcpu_load),
+	HANDLE_FUNC(__pkvm_vcpu_put),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
-- 
GitLab


From ab2c31fe1d020392c3211aeca274602b0a2b8840 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 14:40:24 +0100
Subject: [PATCH 2659/4878] ANDROID: KVM: arm64: Pin host structs for pVMs

In nVHE protected mode the hypervisor sometime needs to read or write to
host-provided data-structures, such as vcpu structs or the kvm struct.

To ensure that the hypervisor can't be tricked by the host into writing
to pages it doesn't own, let's pin the host pages containing those data
structures during the shadow vm creation. This will ensure those pages
remain in a host-shared state for the lifetime of the VM.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Id11bd6a86754b6a3e0c504b06940df310641357d
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 35 ++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 34fc9039110f8..1f4d38d67dec1 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -312,10 +312,21 @@ static void copy_features(struct kvm_vcpu *shadow_vcpu, struct kvm_vcpu *host_vc
 		allowed_features, KVM_VCPU_MAX_FEATURES);
 }
 
-static void init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr_vcpus)
+static void unpin_host_vcpus(struct kvm_shadow_vm *vm)
 {
 	int i;
 
+	for (i = 0; i < vm->created_vcpus; i++) {
+		struct kvm_vcpu *vcpu = vm->vcpus[i]->arch.pkvm.host_vcpu;
+		hyp_unpin_shared_mem(vcpu, vcpu + 1);
+	}
+}
+
+static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr_vcpus)
+{
+	int i;
+	int ret;
+
 	/* TODO: initialize the protected MMU. For now, use the host's. */
 	vm->mmu = &kvm->arch.mmu;
 	vm->host_kvm = kvm;
@@ -326,6 +337,12 @@ static void init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int n
 		struct shadow_vcpu_state *shadow_state = &vm->shadow_vcpus[i];
 		struct kvm_vcpu *shadow_vcpu = &shadow_state->vcpu;
 
+		ret = hyp_pin_shared_mem(host_vcpu, host_vcpu + 1);
+		if (ret)
+			return -EBUSY;
+
+		vm->created_vcpus++;
+
 		shadow_vcpu->kvm = kvm;
 		shadow_vcpu->vcpu_id = host_vcpu->vcpu_id;
 		shadow_vcpu->vcpu_idx = i;
@@ -347,9 +364,9 @@ static void init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int n
 		shadow_vcpu->arch.pkvm.shadow_handle = vm->shadow_handle;
 		shadow_vcpu->arch.pkvm.host_vcpu = host_vcpu;
 		shadow_vcpu->arch.pkvm.shadow_vm = vm;
-
-		vm->created_vcpus++;
 	}
+
+	return 0;
 }
 
 static bool exists_shadow(struct kvm *host_kvm)
@@ -486,6 +503,10 @@ int __pkvm_init_shadow(struct kvm *kvm,
 
 	kvm = kern_hyp_va(kvm);
 
+	ret = hyp_pin_shared_mem(kvm, kvm + 1);
+	if (ret)
+		return ret;
+
 	/* Ensure the host has donated enough memory for the shadow structs. */
 	nr_vcpus = kvm->created_vcpus;
 	ret = check_shadow_size(nr_vcpus, shadow_size);
@@ -504,16 +525,20 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	if (ret < 0)
 		goto err_clear_shadow;
 
-	init_shadow_structs(kvm, vm, nr_vcpus);
+	ret = init_shadow_structs(kvm, vm, nr_vcpus);
+	if (ret < 0)
+		goto err_clear_shadow;
 
 	return vm->shadow_handle;
 
 err_clear_shadow:
+	unpin_host_vcpus(vm);
 	/* Clear the donated shadow memory on failure to avoid data leaks. */
 	memset(vm, 0, shadow_size);
 	WARN_ON(__pkvm_hyp_donate_host(pfn, nr_pages));
 
 err:
+	hyp_unpin_shared_mem(kvm, kvm + 1);
 	return ret;
 }
 
@@ -536,6 +561,8 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 
 	shadow_size = vm->shadow_area_size;
 
+	unpin_host_vcpus(vm);
+	hyp_unpin_shared_mem(vm->host_kvm, vm->host_kvm + 1);
 	remove_shadow_table(shadow_handle);
 
 	/* Clear the shadow memory since hyp is releasing it back to host. */
-- 
GitLab


From a3ea21f4d4ab213ea022e2e70e403a13d3e6e181 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 10 Nov 2021 14:43:08 +0000
Subject: [PATCH 2660/4878] ANDROID: KVM: arm64: Restrict protected VM
 capabilities

Restrict protected VM capabilities based on the
fixed-configuration for protected VMs.

No functional change intended in current KVM-supported modes
(nVHE, VHE).

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Ic247aefac8b4046efaa69d24580f7c58aaeeb80d
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pkvm.h | 27 ++++++++++++
 arch/arm64/kvm/arm.c              | 70 ++++++++++++++++++++++++++++++-
 2 files changed, 96 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 7d18610e6ddbb..efb54331fd6f2 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -199,6 +199,33 @@
 	ARM64_FEATURE_MASK(ID_AA64ISAR1_I8MM) \
 	)
 
+/*
+ * Returns the maximum number of breakpoints supported for protected VMs.
+ */
+static inline int pkvm_get_max_brps(void)
+{
+	int num = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_BRPS),
+			    PVM_ID_AA64DFR0_ALLOW);
+
+	/*
+	 * If breakpoints are supported, the maximum number is 1 + the field.
+	 * Otherwise, return 0, which is not compliant with the architecture,
+	 * but is reserved and is used here to indicate no debug support.
+	 */
+	return num ? num + 1 : 0;
+}
+
+/*
+ * Returns the maximum number of watchpoints supported for protected VMs.
+ */
+static inline int pkvm_get_max_wrps(void)
+{
+	int num = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_WRPS),
+			    PVM_ID_AA64DFR0_ALLOW);
+
+	return num ? num + 1 : 0;
+}
+
 extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
 extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index c0aee2763508b..1489e39279dde 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -36,6 +36,7 @@
 #include <asm/kvm_arm.h>
 #include <asm/kvm_asm.h>
 #include <asm/kvm_mmu.h>
+#include <asm/kvm_pkvm.h>
 #include <asm/kvm_emulate.h>
 #include <asm/sections.h>
 
@@ -200,9 +201,10 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 	kvm_unshare_hyp(kvm, kvm + 1);
 }
 
-int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
+static int kvm_check_extension(struct kvm *kvm, long ext)
 {
 	int r;
+
 	switch (ext) {
 	case KVM_CAP_IRQCHIP:
 		r = vgic_present;
@@ -298,6 +300,72 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	return r;
 }
 
+/*
+ * Checks whether the exctension specified in ext is supported for protected
+ * vms. The capabilities supported by kvm in general are passed in kvm_cap.
+ */
+static int pkvm_check_extension(struct kvm *kvm, long ext, int kvm_cap)
+{
+	int r;
+
+	switch (ext) {
+	case KVM_CAP_IRQCHIP:
+	case KVM_CAP_ARM_PSCI:
+	case KVM_CAP_ARM_PSCI_0_2:
+	case KVM_CAP_NR_VCPUS:
+	case KVM_CAP_MAX_VCPUS:
+	case KVM_CAP_MAX_VCPU_ID:
+	case KVM_CAP_MSI_DEVID:
+	case KVM_CAP_ARM_VM_IPA_SIZE:
+	case KVM_CAP_EXIT_HYPERCALL:
+		r = kvm_cap;
+		break;
+	case KVM_CAP_GUEST_DEBUG_HW_BPS:
+		r = min(kvm_cap, pkvm_get_max_brps());
+		break;
+	case KVM_CAP_GUEST_DEBUG_HW_WPS:
+		r = min(kvm_cap, pkvm_get_max_wrps());
+		break;
+	case KVM_CAP_ARM_PMU_V3:
+		r = kvm_cap && FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMUVER),
+					 PVM_ID_AA64DFR0_ALLOW);
+		break;
+	case KVM_CAP_ARM_SVE:
+		r = kvm_cap && FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_SVE),
+					 PVM_ID_AA64PFR0_RESTRICT_UNSIGNED);
+		break;
+	case KVM_CAP_ARM_PTRAUTH_ADDRESS:
+		r = kvm_cap &&
+		    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_API),
+			      PVM_ID_AA64ISAR1_ALLOW) &&
+		    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_APA),
+			      PVM_ID_AA64ISAR1_ALLOW);
+		break;
+	case KVM_CAP_ARM_PTRAUTH_GENERIC:
+		r = kvm_cap &&
+		    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_GPI),
+			      PVM_ID_AA64ISAR1_ALLOW) &&
+		    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA),
+			      PVM_ID_AA64ISAR1_ALLOW);
+		break;
+	default:
+		r = 0;
+		break;
+	}
+
+	return r;
+}
+
+int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
+{
+	int r = kvm_check_extension(kvm, ext);
+
+	if (unlikely(kvm && kvm_vm_is_protected(kvm)))
+		r = pkvm_check_extension(kvm, ext, r);
+
+	return r;
+}
+
 long kvm_arch_dev_ioctl(struct file *filp,
 			unsigned int ioctl, unsigned long arg)
 {
-- 
GitLab


From 1070b5616f4576fbb7a55107b1187315e28ea25b Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 25 Oct 2021 19:55:20 +0100
Subject: [PATCH 2661/4878] ANDROID: KVM: arm64: pkvm: Lazy host FP
 save/restore

Implement lazy save/restore of the FPSIMD and SVE registers for the host
so that the guest register state remains live for a vCPU with
KVM_ARM64_FP_ENABLED set and the state is only switched in response to a
trap from the host.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I6977740727964e297d1e658e8eaec4f0125cce48
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 72 +++++++++++++++++++++++++-----
 1 file changed, 62 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 6c6a9be692904..f53a9bd97e737 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -337,12 +337,43 @@ static void sync_shadow_state(struct kvm_vcpu *shadow_vcpu, u32 exit_reason)
 
 struct pkvm_loaded_state {
 	/* loaded vcpu is HYP VA */
-	struct kvm_vcpu	*vcpu;
-	bool		is_shadow;
+	struct kvm_vcpu			*vcpu;
+	bool				is_shadow;
+
+	/*
+	 * Host FPSIMD state. Written to when the guest accesses its
+	 * own FPSIMD state, and read when the guest state is live and
+	 * that it needs to be switched back to the host.
+	 *
+	 * Only valid when the KVM_ARM64_FP_ENABLED flag is set in the
+	 * shadow structure.
+	 */
+	struct user_fpsimd_state	host_fpsimd_state;
 };
 
 static DEFINE_PER_CPU(struct pkvm_loaded_state, loaded_state);
 
+static void fpsimd_host_restore(void)
+{
+	sysreg_clear_set(cptr_el2, CPTR_EL2_TZ | CPTR_EL2_TFP, 0);
+	isb();
+
+	if (unlikely(is_protected_kvm_enabled())) {
+		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+
+		if (state->is_shadow) {
+			__fpsimd_save_state(&state->vcpu->arch.ctxt.fp_regs);
+			__fpsimd_restore_state(&state->host_fpsimd_state);
+
+			state->vcpu->arch.flags &= ~KVM_ARM64_FP_ENABLED;
+			state->vcpu->arch.flags |= KVM_ARM64_FP_HOST;
+		}
+	}
+
+	if (system_supports_sve())
+		sve_cond_update_zcr_vq(ZCR_ELx_LEN_MASK, SYS_ZCR_EL2);
+}
+
 static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
@@ -364,8 +395,8 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 	state->is_shadow = state->vcpu != vcpu;
 
 	if (state->is_shadow) {
-		/* FIXME: we can't trust the validity of these pointers */
-		state->vcpu->arch.host_fpsimd_state = vcpu->arch.host_fpsimd_state;
+		state->vcpu->arch.host_fpsimd_state = &state->host_fpsimd_state;
+		state->vcpu->arch.flags |= KVM_ARM64_FP_HOST;
 
 		/* Propagate WFx trapping flags, trap ptrauth */
 		state->vcpu->arch.hcr_el2 &= ~(HCR_TWE | HCR_TWI |
@@ -376,10 +407,20 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 
 static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 {
-	struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+
+	if (unlikely(is_protected_kvm_enabled())) {
+		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-	/* "It's over and done with..." */
-	state->vcpu = NULL;
+		if (state->vcpu && state->is_shadow &&
+		    state->vcpu->arch.pkvm.host_vcpu == kern_hyp_va(vcpu)) {
+			if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED)
+				fpsimd_host_restore();
+
+			/* "It's over and done with..." */
+			state->vcpu = NULL;
+		}
+	}
 }
 
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
@@ -397,6 +438,18 @@ static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 
 		if (state->is_shadow)
 			sync_shadow_state(state->vcpu, ret);
+
+		if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
+			/*
+			 * The guest has used the FP, trap all accesses
+			 * from the host (both FP and SVE).
+			 */
+			u64 reg = CPTR_EL2_TFP;
+			if (system_supports_sve())
+				reg |= CPTR_EL2_TZ;
+
+			sysreg_clear_set(cptr_el2, 0, reg);
+		}
 	} else {
 		ret = __kvm_vcpu_run(kern_hyp_va(vcpu));
 	}
@@ -722,10 +775,9 @@ void handle_trap(struct kvm_cpu_context *host_ctxt)
 	case ESR_ELx_EC_SMC64:
 		handle_host_smc(host_ctxt);
 		break;
+	case ESR_ELx_EC_FP_ASIMD:
 	case ESR_ELx_EC_SVE:
-		sysreg_clear_set(cptr_el2, CPTR_EL2_TZ, 0);
-		isb();
-		sve_cond_update_zcr_vq(ZCR_ELx_LEN_MASK, SYS_ZCR_EL2);
+		fpsimd_host_restore();
 		break;
 	case ESR_ELx_EC_IABT_LOW:
 	case ESR_ELx_EC_DABT_LOW:
-- 
GitLab


From 3a07a4bd0d9c28efb842faa275a1149d80754cf1 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 11 Nov 2021 11:31:20 +0000
Subject: [PATCH 2662/4878] ANDROID: KVM: arm64: pkvm: Rework sysreg entry/exit
 handling

Rework the sysreg entry/exit handling for protected guests so that:

  - The host view of the vCPU pstate is updated on exit, as this may be
    required for emulation
  - WRITE_ONCE() is used to update host vCPU members
  - The esr_sys64_to_params() helper is used to decode the ESR
  - A pending exception request from the host takes precedence over a PC
    increment when setting the shadow vCPU flags

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Ia9b546f86a8815d777b3ff4ee3b09426cba7ad71
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 43 ++++++++++++++++++++++--------
 1 file changed, 32 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index f53a9bd97e737..5f867ff40f840 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -23,6 +23,8 @@
 #include <linux/irqchip/arm-gic-v3.h>
 #include <uapi/linux/psci.h>
 
+#include "../../sys_regs.h"
+
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
 
 struct kvm_iommu_ops kvm_iommu_ops;
@@ -44,18 +46,33 @@ static void handle_pvm_entry_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *
 
 static void handle_pvm_entry_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	u32 esr_el2 = shadow_vcpu->arch.fault.esr_el2;
-	bool is_read = (esr_el2 & ESR_ELx_SYS64_ISS_DIR_MASK) == ESR_ELx_SYS64_ISS_DIR_READ;
+	unsigned long host_flags;
 
-	shadow_vcpu->arch.flags |= host_vcpu->arch.flags &
-		(KVM_ARM64_PENDING_EXCEPTION | KVM_ARM64_INCREMENT_PC);
+	host_flags = READ_ONCE(host_vcpu->arch.flags);
 
-	if (shadow_vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION) {
+	/* Exceptions have priority on anything else */
+	if (host_flags & KVM_ARM64_PENDING_EXCEPTION) {
 		/* Exceptions caused by this should be undef exceptions. */
-		u32 esr_el1 = (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT);
+		u32 esr = (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT);
 
-		__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr_el1;
-	} else if (is_read) {
+		__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr;
+		shadow_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION |
+					     KVM_ARM64_EXCEPT_MASK);
+		shadow_vcpu->arch.flags |= (KVM_ARM64_PENDING_EXCEPTION |
+					    KVM_ARM64_EXCEPT_AA64_ELx_SYNC |
+					    KVM_ARM64_EXCEPT_AA64_EL1);
+
+		return;
+	}
+
+
+	if (host_flags & KVM_ARM64_INCREMENT_PC) {
+		shadow_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION |
+					     KVM_ARM64_EXCEPT_MASK);
+		shadow_vcpu->arch.flags |= KVM_ARM64_INCREMENT_PC;
+	}
+
+	if (!esr_sys64_to_params(shadow_vcpu->arch.fault.esr_el2).is_write) {
 		/* r0 as transfer register between the guest and the host. */
 		u64 rt_val = vcpu_get_reg(host_vcpu, 0);
 		int rt = kvm_vcpu_sys_get_rt(shadow_vcpu);
@@ -111,12 +128,16 @@ static void handle_pvm_exit_wfx(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *sha
 static void handle_pvm_exit_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
 	u32 esr_el2 = shadow_vcpu->arch.fault.esr_el2;
-	bool is_write = (esr_el2 & ESR_ELx_SYS64_ISS_DIR_MASK) == ESR_ELx_SYS64_ISS_DIR_WRITE;
 
 	/* r0 as transfer register between the guest and the host. */
-	host_vcpu->arch.fault.esr_el2 = esr_el2 & ~ESR_ELx_SYS64_ISS_RT_MASK;
+	WRITE_ONCE(host_vcpu->arch.fault.esr_el2,
+		   esr_el2 & ~ESR_ELx_SYS64_ISS_RT_MASK);
+
+	/* The mode is required for the host to emulate some sysregs */
+	WRITE_ONCE(host_vcpu->arch.ctxt.regs.pstate,
+		   shadow_vcpu->arch.ctxt.regs.pstate & PSR_MODE_MASK);
 
-	if (is_write) {
+	if (esr_sys64_to_params(esr_el2).is_write) {
 		int rt = kvm_vcpu_sys_get_rt(shadow_vcpu);
 		u64 rt_val = vcpu_get_reg(shadow_vcpu, rt);
 
-- 
GitLab


From 6a5e1105383d901c2040f73894b7cd058d8fe0c6 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 11 Nov 2021 11:57:30 +0000
Subject: [PATCH 2663/4878] ANDROID: KVM: arm64: pkvm: Refactor DABT entry/exit

Instruction and data aborts taken from a guest are very different
beasts, especially as MMIO exits are only ever triggered by the latter.

Rework the shadow handlers so that instruction and data aborts are
handled independently, making the control flow and MMIO handling
considerably easier to reason about.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I8a0d6881a13154ceaedf4b51ff224256db2e7ebf
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 135 +++++++++++++++++++++--------
 1 file changed, 100 insertions(+), 35 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 5f867ff40f840..2eca95d1f7599 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -81,41 +81,93 @@ static void handle_pvm_entry_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *
 	}
 }
 
-static void handle_pvm_entry_abt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+static void handle_pvm_entry_iabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	shadow_vcpu->arch.flags |= host_vcpu->arch.flags &
-		(KVM_ARM64_PENDING_EXCEPTION | KVM_ARM64_INCREMENT_PC);
+	unsigned long cpsr = *vcpu_cpsr(shadow_vcpu);
+	unsigned long host_flags;
+	u32 esr = ESR_ELx_IL;
 
-	if (shadow_vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION) {
-		/* If the host wants to inject an exception, get syndrom and fault address. */
-		u32 far_el1 = kvm_vcpu_get_hfar(shadow_vcpu);
-		u32 esr_el1;
+	host_flags = READ_ONCE(host_vcpu->arch.flags);
 
-		esr_el1 = ESR_ELx_EC_IABT_CUR << ESR_ELx_EC_SHIFT;
-		esr_el1 |= ESR_ELx_FSC_EXTABT;
+	if (!(host_flags & KVM_ARM64_PENDING_EXCEPTION))
+		return;
 
-		__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr_el1;
-		__vcpu_sys_reg(shadow_vcpu, FAR_EL1) = far_el1;
-	}
+	/*
+	 * If the host wants to inject an exception, get syndrom and
+	 * fault address.
+	 */
+	if ((cpsr & PSR_MODE_MASK) == PSR_MODE_EL0t)
+		esr |= (ESR_ELx_EC_IABT_LOW << ESR_ELx_EC_SHIFT);
+	else
+		esr |= (ESR_ELx_EC_IABT_CUR << ESR_ELx_EC_SHIFT);
+
+	esr |= ESR_ELx_FSC_EXTABT;
+
+	__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr;
+	__vcpu_sys_reg(shadow_vcpu, FAR_EL1) = kvm_vcpu_get_hfar(shadow_vcpu);
+
+	/* Tell the run loop that we want to inject something */
+	shadow_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION |
+				     KVM_ARM64_EXCEPT_MASK);
+	shadow_vcpu->arch.flags |= (KVM_ARM64_PENDING_EXCEPTION |
+				    KVM_ARM64_EXCEPT_AA64_ELx_SYNC |
+				    KVM_ARM64_EXCEPT_AA64_EL1);
 }
 
 static void handle_pvm_entry_dabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	bool pend_exception;
-	bool inc_pc;
+	unsigned long host_flags;
+	bool rd_update;
+
+	host_flags = READ_ONCE(host_vcpu->arch.flags);
+
+	/* Exceptions have priority over anything else */
+	if (host_flags & KVM_ARM64_PENDING_EXCEPTION) {
+		unsigned long cpsr = *vcpu_cpsr(shadow_vcpu);
+		u32 esr = ESR_ELx_IL;
+
+		if ((cpsr & PSR_MODE_MASK) == PSR_MODE_EL0t)
+			esr |= (ESR_ELx_EC_DABT_LOW << ESR_ELx_EC_SHIFT);
+		else
+			esr |= (ESR_ELx_EC_DABT_CUR << ESR_ELx_EC_SHIFT);
+
+		esr |= ESR_ELx_FSC_EXTABT;
+
+		__vcpu_sys_reg(shadow_vcpu, ESR_EL1) = esr;
+		__vcpu_sys_reg(shadow_vcpu, FAR_EL1) = kvm_vcpu_get_hfar(shadow_vcpu);
+		/* Tell the run loop that we want to inject something */
+		shadow_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION |
+					     KVM_ARM64_EXCEPT_MASK);
+		shadow_vcpu->arch.flags |= (KVM_ARM64_PENDING_EXCEPTION |
+					    KVM_ARM64_EXCEPT_AA64_ELx_SYNC |
+					    KVM_ARM64_EXCEPT_AA64_EL1);
 
-	handle_pvm_entry_abt(host_vcpu, shadow_vcpu);
+		/* Cancel potential in-flight MMIO */
+		shadow_vcpu->mmio_needed = false;
+		return;
+	}
 
-	pend_exception = shadow_vcpu->arch.flags & KVM_ARM64_PENDING_EXCEPTION;
-	inc_pc = shadow_vcpu->arch.flags & KVM_ARM64_INCREMENT_PC;
+	/* Handle PC increment on MMIO */
+	if ((host_flags & KVM_ARM64_INCREMENT_PC) && shadow_vcpu->mmio_needed) {
+		shadow_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION |
+					     KVM_ARM64_EXCEPT_MASK);
+		shadow_vcpu->arch.flags |= KVM_ARM64_INCREMENT_PC;
+	}
+
+	/* If we were doing an MMIO read access, update the register*/
+	rd_update = (shadow_vcpu->mmio_needed &&
+		     (host_flags & KVM_ARM64_INCREMENT_PC));
+	rd_update &= !kvm_vcpu_dabt_iswrite(shadow_vcpu);
 
-	if (!pend_exception && inc_pc && !kvm_vcpu_dabt_iswrite(shadow_vcpu)) {
+	if (rd_update) {
 		/* r0 as transfer register between the guest and the host. */
 		u64 rd_val = vcpu_get_reg(host_vcpu, 0);
 		int rd = kvm_vcpu_dabt_get_rd(shadow_vcpu);
 
 		vcpu_set_reg(shadow_vcpu, rd, rd_val);
 	}
+
+	shadow_vcpu->mmio_needed = false;
 }
 
 static void handle_pvm_exit_wfx(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
@@ -191,30 +243,43 @@ static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *s
 		vcpu_set_reg(host_vcpu, i, vcpu_get_reg(shadow_vcpu, i));
 }
 
-static void handle_pvm_exit_abt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+static void handle_pvm_exit_iabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	host_vcpu->arch.ctxt.regs.pstate = shadow_vcpu->arch.ctxt.regs.pstate & PSR_MODE_MASK;
-	host_vcpu->arch.fault.esr_el2 = shadow_vcpu->arch.fault.esr_el2;
-	host_vcpu->arch.fault.far_el2 = shadow_vcpu->arch.fault.far_el2 & FAR_MASK;
-	host_vcpu->arch.fault.hpfar_el2 = shadow_vcpu->arch.fault.hpfar_el2;
-	__vcpu_sys_reg(host_vcpu, SCTLR_EL1) =
-		__vcpu_sys_reg(shadow_vcpu, SCTLR_EL1) & (SCTLR_ELx_EE | SCTLR_EL1_E0E);
+	WRITE_ONCE(host_vcpu->arch.fault.esr_el2,
+		   shadow_vcpu->arch.fault.esr_el2);
+	WRITE_ONCE(host_vcpu->arch.fault.hpfar_el2,
+		   shadow_vcpu->arch.fault.hpfar_el2);
 }
 
 static void handle_pvm_exit_dabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	handle_pvm_exit_abt(host_vcpu, shadow_vcpu);
+	/* FIXME: Revisit once MMIO-guard is available */
+	shadow_vcpu->mmio_needed = true;
 
-	/* r0 as transfer register between the guest and the host. */
-	host_vcpu->arch.fault.esr_el2 &= ~ESR_ELx_SRT_MASK;
+	if (shadow_vcpu->mmio_needed) {
+		/* r0 as transfer register between the guest and the host. */
+		WRITE_ONCE(host_vcpu->arch.fault.esr_el2,
+			   shadow_vcpu->arch.fault.esr_el2 & ~ESR_ELx_SRT_MASK);
 
-	/* TODO: don't expose anything if !MMIO (clear ESR_EL2.ISV) */
-	if (kvm_vcpu_dabt_iswrite(shadow_vcpu)) {
-		int rt = kvm_vcpu_dabt_get_rd(shadow_vcpu);
-		u64 rt_val = vcpu_get_reg(shadow_vcpu, rt);
+		if (kvm_vcpu_dabt_iswrite(shadow_vcpu)) {
+			int rt = kvm_vcpu_dabt_get_rd(shadow_vcpu);
+			u64 rt_val = vcpu_get_reg(shadow_vcpu, rt);
 
-		vcpu_set_reg(host_vcpu, 0, rt_val);
+			vcpu_set_reg(host_vcpu, 0, rt_val);
+		}
+	} else {
+		WRITE_ONCE(host_vcpu->arch.fault.esr_el2,
+			   shadow_vcpu->arch.fault.esr_el2 & ~ESR_ELx_ISV);
 	}
+
+	WRITE_ONCE(host_vcpu->arch.ctxt.regs.pstate,
+		   shadow_vcpu->arch.ctxt.regs.pstate & PSR_MODE_MASK);
+	WRITE_ONCE(host_vcpu->arch.fault.far_el2,
+		   shadow_vcpu->arch.fault.far_el2 & FAR_MASK);
+	WRITE_ONCE(host_vcpu->arch.fault.hpfar_el2,
+		   shadow_vcpu->arch.fault.hpfar_el2);
+	WRITE_ONCE(__vcpu_sys_reg(host_vcpu, SCTLR_EL1),
+		   __vcpu_sys_reg(shadow_vcpu, SCTLR_EL1) & (SCTLR_ELx_EE | SCTLR_EL1_E0E));
 }
 
 static const shadow_entry_exit_handler_fn entry_shadow_handlers[] = {
@@ -222,7 +287,7 @@ static const shadow_entry_exit_handler_fn entry_shadow_handlers[] = {
 	[ESR_ELx_EC_WFx]		= handle_pvm_entry_wfx,
 	[ESR_ELx_EC_HVC64]		= handle_pvm_entry_hvc64,
 	[ESR_ELx_EC_SYS64]		= handle_pvm_entry_sys64,
-	[ESR_ELx_EC_IABT_LOW]		= handle_pvm_entry_abt,
+	[ESR_ELx_EC_IABT_LOW]		= handle_pvm_entry_iabt,
 	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_entry_dabt,
 };
 
@@ -231,7 +296,7 @@ static const shadow_entry_exit_handler_fn exit_shadow_handlers[] = {
 	[ESR_ELx_EC_WFx]		= handle_pvm_exit_wfx,
 	[ESR_ELx_EC_HVC64]		= handle_pvm_exit_hvc64,
 	[ESR_ELx_EC_SYS64]		= handle_pvm_exit_sys64,
-	[ESR_ELx_EC_IABT_LOW]		= handle_pvm_exit_abt,
+	[ESR_ELx_EC_IABT_LOW]		= handle_pvm_exit_iabt,
 	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_exit_dabt,
 };
 
-- 
GitLab


From 1e5b56352d1b45874bef29f53112e9090227c877 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Mon, 18 Oct 2021 10:56:25 +0100
Subject: [PATCH 2664/4878] ANDROID: KVM: arm64: Move some kvm_psci functions
 to a shared header

Move some PSCI functions and macros to a shared header to be used
by hyp in protected mode.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: I3057eadc9c2a71c2fee36575a8215c3119bd9e36
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_emulate.h | 30 ++++++++++++++++++++++++++++
 arch/arm64/kvm/psci.c                | 28 --------------------------
 2 files changed, 30 insertions(+), 28 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index cd5fd9b92b043..5956222d726ae 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -474,4 +474,34 @@ static inline bool vcpu_has_feature(struct kvm_vcpu *vcpu, int feature)
 	return test_bit(feature, vcpu->arch.features);
 }
 
+/* Narrow the PSCI register arguments (r1 to r3) to 32 bits. */
+static inline void kvm_psci_narrow_to_32bit(struct kvm_vcpu *vcpu)
+{
+	int i;
+
+	/*
+	 * Zero the input registers' upper 32 bits. They will be fully
+	 * zeroed on exit, so we're fine changing them in place.
+	 */
+	for (i = 1; i < 4; i++)
+		vcpu_set_reg(vcpu, i, lower_32_bits(vcpu_get_reg(vcpu, i)));
+}
+
+static inline bool kvm_psci_valid_affinity(struct kvm_vcpu *vcpu,
+					   unsigned long affinity)
+{
+	return !(affinity & ~MPIDR_HWID_BITMASK);
+}
+
+
+#define AFFINITY_MASK(level)	~((0x1UL << ((level) * MPIDR_LEVEL_BITS)) - 1)
+
+static inline unsigned long psci_affinity_mask(unsigned long affinity_level)
+{
+	if (affinity_level <= 3)
+		return MPIDR_HWID_BITMASK & AFFINITY_MASK(affinity_level);
+
+	return 0;
+}
+
 #endif /* __ARM64_KVM_EMULATE_H__ */
diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 9b82d6878aac8..02a342721b125 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -21,16 +21,6 @@
  * as described in ARM document number ARM DEN 0022A.
  */
 
-#define AFFINITY_MASK(level)	~((0x1UL << ((level) * MPIDR_LEVEL_BITS)) - 1)
-
-static unsigned long psci_affinity_mask(unsigned long affinity_level)
-{
-	if (affinity_level <= 3)
-		return MPIDR_HWID_BITMASK & AFFINITY_MASK(affinity_level);
-
-	return 0;
-}
-
 static unsigned long kvm_psci_vcpu_suspend(struct kvm_vcpu *vcpu)
 {
 	/*
@@ -59,12 +49,6 @@ static void kvm_psci_vcpu_off(struct kvm_vcpu *vcpu)
 	kvm_vcpu_kick(vcpu);
 }
 
-static inline bool kvm_psci_valid_affinity(struct kvm_vcpu *vcpu,
-					   unsigned long affinity)
-{
-	return !(affinity & ~MPIDR_HWID_BITMASK);
-}
-
 static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
 {
 	struct vcpu_reset_state *reset_state;
@@ -195,18 +179,6 @@ static void kvm_psci_system_reset(struct kvm_vcpu *vcpu)
 	kvm_prepare_system_event(vcpu, KVM_SYSTEM_EVENT_RESET);
 }
 
-static void kvm_psci_narrow_to_32bit(struct kvm_vcpu *vcpu)
-{
-	int i;
-
-	/*
-	 * Zero the input registers' upper 32 bits. They will be fully
-	 * zeroed on exit, so we're fine changing them in place.
-	 */
-	for (i = 1; i < 4; i++)
-		vcpu_set_reg(vcpu, i, lower_32_bits(vcpu_get_reg(vcpu, i)));
-}
-
 static unsigned long kvm_psci_check_allowed_function(struct kvm_vcpu *vcpu, u32 fn)
 {
 	switch(fn) {
-- 
GitLab


From 3f6536412f0b0ee4db051e8bba70422af2b7499c Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 3 Nov 2021 16:53:38 +0000
Subject: [PATCH 2665/4878] ANDROID: KVM: arm64: refactor vcpu_read_sys_reg and
 vcpu_write_sys_reg for hyp use

Move vcpu_read_sys_reg and vcpu_write_sys_reg to a shared header
to be used by hyp in protected mode.

Refactored as macros to avoid including kvm.h, which would have
been needed for struct vcpu.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: I6b949d60b1cab6aa12978e2f9b775192701990c6
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h | 26 +++++++++++++++++++++++---
 arch/arm64/kvm/sys_regs.c         | 20 --------------------
 2 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index efb96482edeaa..8763d74fe2619 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -504,9 +504,6 @@ struct kvm_vcpu_arch {
 
 #define __vcpu_sys_reg(v,r)	(ctxt_sys_reg(&(v)->arch.ctxt, (r)))
 
-u64 vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg);
-void vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg);
-
 static inline bool __vcpu_read_sys_reg_from_cpu(int reg, u64 *val)
 {
 	/*
@@ -598,6 +595,29 @@ static inline bool __vcpu_write_sys_reg_to_cpu(u64 val, int reg)
 	return true;
 }
 
+static inline u64 vcpu_arch_read_sys_reg(const struct kvm_vcpu_arch *vcpu_arch, int reg)
+{
+	u64 val = 0x8badf00d8badf00d;
+
+	if (is_vhe_hyp_code() && vcpu_arch->sysregs_loaded_on_cpu &&
+	    __vcpu_read_sys_reg_from_cpu(reg, &val))
+		return val;
+
+	return ctxt_sys_reg(&vcpu_arch->ctxt, reg);
+}
+
+static inline void vcpu_arch_write_sys_reg(struct kvm_vcpu_arch *vcpu_arch, u64 val, int reg)
+{
+	if (is_vhe_hyp_code() && vcpu_arch->sysregs_loaded_on_cpu &&
+	    __vcpu_write_sys_reg_to_cpu(val, reg))
+		return;
+
+	 ctxt_sys_reg(&vcpu_arch->ctxt, reg) = val;
+}
+
+#define vcpu_read_sys_reg(vcpu, reg) vcpu_arch_read_sys_reg(&((vcpu)->arch), reg)
+#define vcpu_write_sys_reg(vcpu, val, reg) vcpu_arch_write_sys_reg(&((vcpu)->arch), val, reg)
+
 struct kvm_vm_stat {
 	ulong remote_tlb_flush;
 };
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index cca18f4d2922c..3034ac013bb19 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -64,26 +64,6 @@ static bool write_to_read_only(struct kvm_vcpu *vcpu,
 	return false;
 }
 
-u64 vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg)
-{
-	u64 val = 0x8badf00d8badf00d;
-
-	if (vcpu->arch.sysregs_loaded_on_cpu &&
-	    __vcpu_read_sys_reg_from_cpu(reg, &val))
-		return val;
-
-	return __vcpu_sys_reg(vcpu, reg);
-}
-
-void vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg)
-{
-	if (vcpu->arch.sysregs_loaded_on_cpu &&
-	    __vcpu_write_sys_reg_to_cpu(val, reg))
-		return;
-
-	 __vcpu_sys_reg(vcpu, reg) = val;
-}
-
 /* 3 bits per cache level, as per CLIDR, but non-existent caches always 0 */
 static u32 cache_levels;
 
-- 
GitLab


From 995b261f1e0aa1f96acfab3e08eb86e430d06882 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 3 Nov 2021 17:13:37 +0000
Subject: [PATCH 2666/4878] ANDROID: KVM: arm64: refactor
 kvm_vcpu_enable_ptrauth() for hyp use

Move kvm_vcpu_enable_ptrauth() to a shared header to be used by
hyp in protected mode.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: I9457bb7a16e807b6c59b4b3e121b6f4715a12cab
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_emulate.h | 16 ++++++++++++++++
 arch/arm64/kvm/reset.c               | 18 +-----------------
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index 5956222d726ae..7e0ff042be886 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -41,6 +41,22 @@ void kvm_inject_vabt(struct kvm_vcpu *vcpu);
 void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);
 void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
 
+static inline int kvm_vcpu_enable_ptrauth(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * For now make sure that both address/generic pointer authentication
+	 * features are requested by the userspace together and the system
+	 * supports these capabilities.
+	 */
+	if (!test_bit(KVM_ARM_VCPU_PTRAUTH_ADDRESS, vcpu->arch.features) ||
+	    !test_bit(KVM_ARM_VCPU_PTRAUTH_GENERIC, vcpu->arch.features) ||
+	    !system_has_full_ptr_auth())
+		return -EINVAL;
+
+	vcpu->arch.flags |= KVM_ARM64_GUEST_HAS_PTRAUTH;
+	return 0;
+}
+
 static __always_inline bool vcpu_el1_is_32bit(struct kvm_vcpu *vcpu)
 {
 	return !(vcpu->arch.hcr_el2 & HCR_RW);
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 4595e9f030270..32e07c68908c5 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -109,7 +109,7 @@ static int kvm_vcpu_finalize_sve(struct kvm_vcpu *vcpu)
 		kfree(buf);
 		return ret;
 	}
-	
+
 	vcpu->arch.sve_state = buf;
 	vcpu->arch.flags |= KVM_ARM64_VCPU_SVE_FINALIZED;
 	return 0;
@@ -156,22 +156,6 @@ static void kvm_vcpu_reset_sve(struct kvm_vcpu *vcpu)
 		memset(vcpu->arch.sve_state, 0, vcpu_sve_state_size(vcpu));
 }
 
-static int kvm_vcpu_enable_ptrauth(struct kvm_vcpu *vcpu)
-{
-	/*
-	 * For now make sure that both address/generic pointer authentication
-	 * features are requested by the userspace together and the system
-	 * supports these capabilities.
-	 */
-	if (!test_bit(KVM_ARM_VCPU_PTRAUTH_ADDRESS, vcpu->arch.features) ||
-	    !test_bit(KVM_ARM_VCPU_PTRAUTH_GENERIC, vcpu->arch.features) ||
-	    !system_has_full_ptr_auth())
-		return -EINVAL;
-
-	vcpu->arch.flags |= KVM_ARM64_GUEST_HAS_PTRAUTH;
-	return 0;
-}
-
 static bool vcpu_allowed_register_width(struct kvm_vcpu *vcpu)
 {
 	struct kvm_vcpu *tmp;
-- 
GitLab


From 45f87742a617c85c99aabff0661991d700280700 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 11 Nov 2021 14:53:43 +0000
Subject: [PATCH 2667/4878] ANDROID: KVM: arm64: Handle PSCI for protected VMs

Add PSCI 1.0 support for protected VMs. All mandatory functions
are supported, except for SYSTEM_RESET, because pKVM doesn't have
a way of resetting protected VMs yet.

Some VMMs issue a SYSTEM_RESET when tearing down a VM, therefore,
for now, we repaint SYSTEM_RESET calls as SYSTEM_OFF.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Ide47339dc4c0392b41f77e90c43ec805a0780d00
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h      |   9 +
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |   6 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c     |  82 ++++--
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 362 ++++++++++++++++++++++++-
 arch/arm64/kvm/hyp/nvhe/switch.c       |  12 +
 5 files changed, 439 insertions(+), 32 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 8763d74fe2619..22aea79e76a11 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -158,6 +158,15 @@ struct kvm_protected_vcpu {
 
 	/* Tracks exit code for the protected guest. */
 	int exit_code;
+
+	/*
+	 * Track the power state transition of a protected vcpu.
+	 * Can be in one of three states:
+	 * PSCI_0_2_AFFINITY_LEVEL_ON
+	 * PSCI_0_2_AFFINITY_LEVEL_OFF
+	 * PSCI_0_2_AFFINITY_LEVEL_PENDING
+	 */
+	int power_state;
 };
 
 struct kvm_vcpu_fault_info {
diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index f3a2e0d2bdc32..6ddd1df812cf9 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -55,4 +55,10 @@ bool kvm_handle_pvm_restricted(struct kvm_vcpu *vcpu, u64 *exit_code);
 void kvm_reset_pvm_sys_regs(struct kvm_vcpu *vcpu);
 int kvm_check_pvm_sysreg_table(void);
 
+void pkvm_reset_vcpu(struct kvm_vcpu *vcpu);
+
+bool pkvm_handle_hvc64(struct kvm_vcpu *vcpu);
+
+struct kvm_vcpu *pvm_mpidr_to_vcpu(struct kvm_shadow_vm *vm, unsigned long mpidr);
+
 #endif /* __ARM64_KVM_NVHE_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 2eca95d1f7599..871c4ffe7ed6d 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -38,10 +38,48 @@ static void handle_pvm_entry_wfx(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *sh
 	shadow_vcpu->arch.flags |= host_vcpu->arch.flags & KVM_ARM64_INCREMENT_PC;
 }
 
+static void handle_pvm_entry_psci(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	u32 psci_fn = smccc_get_function(shadow_vcpu);
+	u64 ret = vcpu_get_reg(host_vcpu, 0);
+
+	switch (psci_fn) {
+	case PSCI_0_2_FN_CPU_ON:
+	case PSCI_0_2_FN64_CPU_ON:
+		/*
+		 * Check whether the cpu_on request to the host was successful.
+		 * If not, reset the vcpu state from ON_PENDING to OFF.
+		 * This could happen if this vcpu attempted to turn on the other
+		 * vcpu while the other one is in the process of turning itself
+		 * off.
+		 */
+		if (ret != PSCI_RET_SUCCESS) {
+			struct kvm_shadow_vm *vm = shadow_vcpu->arch.pkvm.shadow_vm;
+			unsigned long cpu_id = smccc_get_arg1(shadow_vcpu);
+			struct kvm_vcpu *vcpu = pvm_mpidr_to_vcpu(vm, cpu_id);
+
+			if (vcpu && READ_ONCE(vcpu->arch.pkvm.power_state) == PSCI_0_2_AFFINITY_LEVEL_ON_PENDING)
+				WRITE_ONCE(vcpu->arch.pkvm.power_state, PSCI_0_2_AFFINITY_LEVEL_OFF);
+
+			ret = PSCI_RET_INTERNAL_FAILURE;
+		}
+		break;
+	default:
+		break;
+	}
+
+	vcpu_set_reg(shadow_vcpu, 0, ret);
+}
+
 static void handle_pvm_entry_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	/* HVCs for pvms either don't return or use only one register. */
-	vcpu_set_reg(shadow_vcpu, 0, vcpu_get_reg(host_vcpu, 0));
+	u32 fn = smccc_get_function(shadow_vcpu);
+
+	switch (fn) {
+	default:
+		handle_pvm_entry_psci(host_vcpu, shadow_vcpu);
+		break;
+	}
 }
 
 static void handle_pvm_entry_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
@@ -202,34 +240,29 @@ static int get_num_hvc_args(struct kvm_vcpu *vcpu)
 	u32 psci_fn = smccc_get_function(vcpu);
 
 	switch (psci_fn) {
+	/*
+	 * CPU_ON takes 3 arguments, however, to wake up the target vcpu the
+	 * host only needs to know the target's cpu_id, which is passed as the
+	 * first argument. The processing of the reset state is done at hyp.
+	 */
 	case PSCI_0_2_FN_CPU_ON:
 	case PSCI_0_2_FN64_CPU_ON:
+		return 1;
+
+	case PSCI_0_2_FN_CPU_OFF:
+	case PSCI_0_2_FN_SYSTEM_OFF:
+
+	/* The KVM implementation of suspend doesn't use any arguments. */
 	case PSCI_0_2_FN_CPU_SUSPEND:
 	case PSCI_0_2_FN64_CPU_SUSPEND:
-		return 3;
-	case PSCI_0_2_FN_AFFINITY_INFO:
-	case PSCI_0_2_FN64_AFFINITY_INFO:
-	case PSCI_1_1_FN_SYSTEM_RESET2:
-	case PSCI_1_1_FN64_SYSTEM_RESET2:
-	case PSCI_1_0_FN_SYSTEM_SUSPEND:
-	case PSCI_1_0_FN64_SYSTEM_SUSPEND:
-		return 2;
-	case PSCI_1_0_FN_PSCI_FEATURES:
-	case PSCI_0_2_FN_MIGRATE:
-	case PSCI_0_2_FN64_MIGRATE:
-	case PSCI_1_0_FN_SET_SUSPEND_MODE:
-	case ARM_SMCCC_ARCH_FEATURES_FUNC_ID:
-	case ARM_SMCCC_TRNG_FEATURES:
-	case ARM_SMCCC_TRNG_RND32:
-	case ARM_SMCCC_TRNG_RND64:
-	case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID:
-	case ARM_SMCCC_HV_PV_TIME_FEATURES:
-		return 1;
-	default:
 		return 0;
+
+	/* The rest are either blocked or handled by hyp. */
+	default:
+		return -1;
 	}
 
-	return 0;
+	return -1;
 }
 
 static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
@@ -367,6 +400,9 @@ static void flush_shadow_state(struct kvm_vcpu *shadow_vcpu)
 	u8 esr_ec;
 	shadow_entry_exit_handler_fn ec_handler;
 
+	if (READ_ONCE(shadow_vcpu->arch.pkvm.power_state) == PSCI_0_2_AFFINITY_LEVEL_ON_PENDING)
+		pkvm_reset_vcpu(shadow_vcpu);
+
 	flush_vgic_state(host_vcpu, shadow_vcpu);
 	flush_timer_state(shadow_vcpu);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 1f4d38d67dec1..db83670992ae6 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -4,14 +4,18 @@
  * Author: Fuad Tabba <tabba@google.com>
  */
 
+#include <asm/kvm_arm.h>
 #include <asm/kvm_asm.h>
-#include <asm/kvm_emulate.h>
+#include <asm/kvm_host.h>
 #include <asm/kvm_mmu.h>
 #include <asm/memory.h>
 
 #include <linux/kvm_host.h>
 #include <linux/mm.h>
 
+#include <kvm/arm_hypercalls.h>
+#include <kvm/arm_psci.h>
+
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
 #include <nvhe/pkvm.h>
@@ -273,8 +277,8 @@ struct kvm_vcpu *hyp_get_shadow_vcpu(const struct kvm_vcpu *vcpu)
 	return &shadow_vcpu_state->vcpu;
 }
 
-/* Copy the supported features for the vcpu from the host. */
-static void copy_features(struct kvm_vcpu *shadow_vcpu, struct kvm_vcpu *host_vcpu)
+/* Check and copy the supported features for the vcpu from the host. */
+static int copy_features(struct kvm_vcpu *shadow_vcpu, struct kvm_vcpu *host_vcpu)
 {
 	DECLARE_BITMAP(allowed_features, KVM_VCPU_MAX_FEATURES);
 
@@ -310,6 +314,17 @@ static void copy_features(struct kvm_vcpu *shadow_vcpu, struct kvm_vcpu *host_vc
 
 	bitmap_and(shadow_vcpu->arch.features, host_vcpu->arch.features,
 		allowed_features, KVM_VCPU_MAX_FEATURES);
+
+	/*
+	 * Check for system support for address/generic pointer authentication
+	 * features if either are enabled.
+	 */
+	if ((test_bit(KVM_ARM_VCPU_PTRAUTH_ADDRESS, shadow_vcpu->arch.features) ||
+	     test_bit(KVM_ARM_VCPU_PTRAUTH_GENERIC, shadow_vcpu->arch.features)) &&
+	    !system_has_full_ptr_auth())
+		return -EINVAL;
+
+	return 0;
 }
 
 static void unpin_host_vcpus(struct kvm_shadow_vm *vm)
@@ -347,14 +362,12 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 		shadow_vcpu->vcpu_id = host_vcpu->vcpu_id;
 		shadow_vcpu->vcpu_idx = i;
 
-		vcpu_gp_regs(shadow_vcpu)->pstate = VCPU_RESET_PSTATE_EL1;
-		*vcpu_pc(shadow_vcpu) = *vcpu_pc(host_vcpu);
-		vcpu_set_reg(shadow_vcpu, 0, vcpu_get_reg(host_vcpu, 0));
-
-		kvm_reset_pvm_sys_regs(shadow_vcpu);
+		ret = copy_features(shadow_vcpu, host_vcpu);
+		if (ret)
+			return ret;
 
-		copy_features(shadow_vcpu, host_vcpu);
 		pkvm_vcpu_init_traps(shadow_vcpu);
+		kvm_reset_pvm_sys_regs(shadow_vcpu);
 
 		vm->vcpus[i] = shadow_vcpu;
 		shadow_state->vm = vm;
@@ -364,6 +377,18 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 		shadow_vcpu->arch.pkvm.shadow_handle = vm->shadow_handle;
 		shadow_vcpu->arch.pkvm.host_vcpu = host_vcpu;
 		shadow_vcpu->arch.pkvm.shadow_vm = vm;
+		shadow_vcpu->arch.power_off = true;
+
+		if (test_bit(KVM_ARM_VCPU_POWER_OFF, shadow_vcpu->arch.features)) {
+			shadow_vcpu->arch.pkvm.power_state = PSCI_0_2_AFFINITY_LEVEL_OFF;
+		} else {
+			struct vcpu_reset_state *reset_state = &shadow_vcpu->arch.reset_state;
+
+			reset_state->pc = *vcpu_pc(host_vcpu);
+			reset_state->r0 = vcpu_get_reg(host_vcpu, 0);
+			reset_state->reset = true;
+			shadow_vcpu->arch.pkvm.power_state = PSCI_0_2_AFFINITY_LEVEL_ON_PENDING;
+		}
 	}
 
 	return 0;
@@ -573,3 +598,322 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 	WARN_ON(__pkvm_hyp_donate_host(pfn, nr_pages));
 	return 0;
 }
+
+/*
+ * This function sets the registers on the vcpu to their architecturally defined
+ * reset values.
+ *
+ * Note: Can only be called by the vcpu on itself, after it has been turned on.
+ */
+void pkvm_reset_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_reset_state *reset_state = &vcpu->arch.reset_state;
+
+	WARN_ON(!reset_state->reset);
+
+	if (test_bit(KVM_ARM_VCPU_PTRAUTH_ADDRESS, vcpu->arch.features) ||
+	    test_bit(KVM_ARM_VCPU_PTRAUTH_GENERIC, vcpu->arch.features)) {
+		/*
+		 * This call should not fail since we've already checked for
+		 * feature support on initialization.
+		 */
+		WARN_ON(kvm_vcpu_enable_ptrauth(vcpu));
+	}
+
+	/* Reset core registers */
+	memset(vcpu_gp_regs(vcpu), 0, sizeof(*vcpu_gp_regs(vcpu)));
+	memset(&vcpu->arch.ctxt.fp_regs, 0, sizeof(vcpu->arch.ctxt.fp_regs));
+	vcpu_gp_regs(vcpu)->pstate = VCPU_RESET_PSTATE_EL1;
+
+	/* Reset system registers */
+	kvm_reset_pvm_sys_regs(vcpu);
+
+	/* Propagate initiator's endianness, after kvm_reset_pvm_sys_regs. */
+	if (reset_state->be)
+		kvm_vcpu_set_be(vcpu);
+
+	*vcpu_pc(vcpu) = reset_state->pc;
+	vcpu_set_reg(vcpu, 0, reset_state->r0);
+
+	reset_state->reset = false;
+
+	vcpu->arch.pkvm.exit_code = 0;
+
+	WARN_ON(vcpu->arch.pkvm.power_state != PSCI_0_2_AFFINITY_LEVEL_ON_PENDING);
+	WRITE_ONCE(vcpu->arch.power_off, false);
+	WRITE_ONCE(vcpu->arch.pkvm.power_state, PSCI_0_2_AFFINITY_LEVEL_ON);
+}
+
+struct kvm_vcpu *pvm_mpidr_to_vcpu(struct kvm_shadow_vm *vm, unsigned long mpidr)
+{
+	struct kvm_vcpu *vcpu;
+	int i;
+
+	mpidr &= MPIDR_HWID_BITMASK;
+
+	for (i = 0; i < vm->created_vcpus; i++) {
+		vcpu = vm->vcpus[i];
+
+		if (mpidr == kvm_vcpu_get_mpidr_aff(vcpu))
+			return vcpu;
+	}
+
+	return NULL;
+}
+
+/*
+ * Returns true if the hypervisor handled PSCI call, and control should go back
+ * to the guest, or false if the host needs to do some additional work (i.e.,
+ * wake up the vcpu).
+ */
+static bool pvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
+{
+	struct kvm_shadow_vm *vm = source_vcpu->arch.pkvm.shadow_vm;
+	struct kvm_vcpu *vcpu;
+	struct vcpu_reset_state *reset_state;
+	unsigned long cpu_id;
+	unsigned long hvc_ret_val;
+	int power_state;
+
+	cpu_id = smccc_get_arg1(source_vcpu);
+	if (!kvm_psci_valid_affinity(source_vcpu, cpu_id)) {
+		hvc_ret_val = PSCI_RET_INVALID_PARAMS;
+		goto error;
+	}
+
+	vcpu = pvm_mpidr_to_vcpu(vm, cpu_id);
+
+	/* Make sure the caller requested a valid vcpu. */
+	if (!vcpu) {
+		hvc_ret_val = PSCI_RET_INVALID_PARAMS;
+		goto error;
+	}
+
+	/*
+	 * Make sure the requested vcpu is not on to begin with.
+	 * Atomic to avoid race between vcpus trying to power on the same vcpu.
+	 */
+	power_state = cmpxchg(&vcpu->arch.pkvm.power_state,
+		PSCI_0_2_AFFINITY_LEVEL_OFF,
+		PSCI_0_2_AFFINITY_LEVEL_ON_PENDING);
+	switch (power_state) {
+	case PSCI_0_2_AFFINITY_LEVEL_ON_PENDING:
+		hvc_ret_val = PSCI_RET_ON_PENDING;
+		goto error;
+	case PSCI_0_2_AFFINITY_LEVEL_ON:
+		hvc_ret_val = PSCI_RET_ALREADY_ON;
+		goto error;
+	case PSCI_0_2_AFFINITY_LEVEL_OFF:
+		break;
+	default:
+		hvc_ret_val = PSCI_RET_INTERNAL_FAILURE;
+		goto error;
+	}
+
+	reset_state = &vcpu->arch.reset_state;
+
+	reset_state->pc = smccc_get_arg2(source_vcpu);
+	reset_state->r0 = smccc_get_arg3(source_vcpu);
+
+	/* Propagate caller endianness */
+	reset_state->be = kvm_vcpu_is_be(source_vcpu);
+
+	reset_state->reset = true;
+
+	/*
+	 * Return to the host, which should make the KVM_REQ_VCPU_RESET request
+	 * as well as kvm_vcpu_wake_up() to schedule the vcpu.
+	 */
+	return false;
+
+error:
+	/* If there's an error go back straight to the guest. */
+	smccc_set_retval(source_vcpu, hvc_ret_val, 0, 0, 0);
+	return true;
+}
+
+static bool pvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu)
+{
+	int i, matching_cpus = 0;
+	unsigned long mpidr;
+	unsigned long target_affinity;
+	unsigned long target_affinity_mask;
+	unsigned long lowest_affinity_level;
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	struct kvm_vcpu *tmp;
+	unsigned long hvc_ret_val;
+
+	target_affinity = smccc_get_arg1(vcpu);
+	lowest_affinity_level = smccc_get_arg2(vcpu);
+
+	if (!kvm_psci_valid_affinity(vcpu, target_affinity)) {
+		hvc_ret_val = PSCI_RET_INVALID_PARAMS;
+		goto done;
+	}
+
+	/* Determine target affinity mask */
+	target_affinity_mask = psci_affinity_mask(lowest_affinity_level);
+	if (!target_affinity_mask) {
+		hvc_ret_val = PSCI_RET_INVALID_PARAMS;
+		goto done;
+	}
+
+	/* Ignore other bits of target affinity */
+	target_affinity &= target_affinity_mask;
+
+	hvc_ret_val = PSCI_0_2_AFFINITY_LEVEL_OFF;
+
+	/*
+	 * If at least one vcpu matching target affinity is ON then return ON,
+	 * then if at least one is PENDING_ON then return PENDING_ON.
+	 * Otherwise, return OFF.
+	 */
+	for (i = 0; i < vm->created_vcpus; i++) {
+		tmp = vm->vcpus[i];
+		mpidr = kvm_vcpu_get_mpidr_aff(tmp);
+
+		if ((mpidr & target_affinity_mask) == target_affinity) {
+			int power_state;
+
+			matching_cpus++;
+			power_state = READ_ONCE(tmp->arch.pkvm.power_state);
+			switch (power_state) {
+			case PSCI_0_2_AFFINITY_LEVEL_ON_PENDING:
+				hvc_ret_val = PSCI_0_2_AFFINITY_LEVEL_ON_PENDING;
+				break;
+			case PSCI_0_2_AFFINITY_LEVEL_ON:
+				hvc_ret_val = PSCI_0_2_AFFINITY_LEVEL_ON;
+				goto done;
+			case PSCI_0_2_AFFINITY_LEVEL_OFF:
+				break;
+			default:
+				hvc_ret_val = PSCI_RET_INTERNAL_FAILURE;
+				goto done;
+			}
+		}
+	}
+
+	if (!matching_cpus)
+		hvc_ret_val = PSCI_RET_INVALID_PARAMS;
+
+done:
+	/* Nothing to be handled by the host. Go back to the guest. */
+	smccc_set_retval(vcpu, hvc_ret_val, 0, 0, 0);
+	return true;
+}
+
+/*
+ * Returns true if the hypervisor has handled the PSCI call, and control should
+ * go back to the guest, or false if the host needs to do some additional work
+ * (e.g., turn off and update vcpu scheduling status).
+ */
+static bool pvm_psci_vcpu_off(struct kvm_vcpu *vcpu)
+{
+	WARN_ON(vcpu->arch.power_off);
+	WARN_ON(vcpu->arch.pkvm.power_state != PSCI_0_2_AFFINITY_LEVEL_ON);
+
+	WRITE_ONCE(vcpu->arch.power_off, true);
+	WRITE_ONCE(vcpu->arch.pkvm.power_state, PSCI_0_2_AFFINITY_LEVEL_OFF);
+
+	/* Return to the host so that it can finish powering off the vcpu. */
+	return false;
+}
+
+static bool pvm_psci_version(struct kvm_vcpu *vcpu)
+{
+	/* Nothing to be handled by the host. Go back to the guest. */
+	smccc_set_retval(vcpu, KVM_ARM_PSCI_1_0, 0, 0, 0);
+	return true;
+}
+
+static bool pvm_psci_not_supported(struct kvm_vcpu *vcpu)
+{
+	/* Nothing to be handled by the host. Go back to the guest. */
+	smccc_set_retval(vcpu, PSCI_RET_NOT_SUPPORTED, 0, 0, 0);
+	return true;
+}
+
+static bool pvm_psci_features(struct kvm_vcpu *vcpu)
+{
+	u32 feature = smccc_get_arg1(vcpu);
+	unsigned long val;
+
+	switch (feature) {
+	case PSCI_0_2_FN_PSCI_VERSION:
+	case PSCI_0_2_FN_CPU_SUSPEND:
+	case PSCI_0_2_FN64_CPU_SUSPEND:
+	case PSCI_0_2_FN_CPU_OFF:
+	case PSCI_0_2_FN_CPU_ON:
+	case PSCI_0_2_FN64_CPU_ON:
+	case PSCI_0_2_FN_AFFINITY_INFO:
+	case PSCI_0_2_FN64_AFFINITY_INFO:
+	case PSCI_0_2_FN_SYSTEM_OFF:
+	case PSCI_0_2_FN_SYSTEM_RESET:
+	case PSCI_1_0_FN_PSCI_FEATURES:
+	case ARM_SMCCC_VERSION_FUNC_ID:
+		val = PSCI_RET_SUCCESS;
+		break;
+	default:
+		val = PSCI_RET_NOT_SUPPORTED;
+		break;
+	}
+
+	/* Nothing to be handled by the host. Go back to the guest. */
+	smccc_set_retval(vcpu, val, 0, 0, 0);
+	return true;
+}
+
+static bool pkvm_handle_psci(struct kvm_vcpu *vcpu)
+{
+	u32 psci_fn = smccc_get_function(vcpu);
+
+	switch (psci_fn) {
+	case PSCI_0_2_FN_CPU_ON:
+		kvm_psci_narrow_to_32bit(vcpu);
+		fallthrough;
+	case PSCI_0_2_FN64_CPU_ON:
+		return pvm_psci_vcpu_on(vcpu);
+	case PSCI_0_2_FN_CPU_OFF:
+		return pvm_psci_vcpu_off(vcpu);
+	case PSCI_0_2_FN_AFFINITY_INFO:
+		kvm_psci_narrow_to_32bit(vcpu);
+		fallthrough;
+	case PSCI_0_2_FN64_AFFINITY_INFO:
+		return pvm_psci_vcpu_affinity_info(vcpu);
+	case PSCI_0_2_FN_PSCI_VERSION:
+		return pvm_psci_version(vcpu);
+	case PSCI_1_0_FN_PSCI_FEATURES:
+		return pvm_psci_features(vcpu);
+	case PSCI_0_2_FN_SYSTEM_RESET:
+		/*
+		 * NOTE: Until we add proper support for reset for protected
+		 * VMs, repaint reset requests as system off because some VMMs
+		 * use reset when tearing down a VM.
+		 */
+		vcpu_set_reg(vcpu, 0, PSCI_0_2_FN_SYSTEM_OFF);
+		fallthrough;
+	case PSCI_0_2_FN_CPU_SUSPEND:
+	case PSCI_0_2_FN64_CPU_SUSPEND:
+	case PSCI_0_2_FN_SYSTEM_OFF:
+		return false; /* Handled by the host. */
+	default:
+		break;
+	}
+
+	return pvm_psci_not_supported(vcpu);
+}
+
+bool pkvm_handle_hvc64(struct kvm_vcpu *vcpu)
+{
+	u32 fn = smccc_get_function(vcpu);
+
+	switch (fn) {
+	case ARM_SMCCC_VERSION_FUNC_ID:
+		/* Nothing to be handled by the host. Go back to the guest. */
+		smccc_set_retval(vcpu, ARM_SMCCC_VERSION_1_1, 0, 0, 0);
+		return true;
+
+	default:
+		return pkvm_handle_psci(vcpu);
+	}
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 9d2b971e8613d..2611372762931 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -192,6 +192,17 @@ static bool kvm_handle_pvm_fpsimd(struct kvm_vcpu *vcpu, u64 *exit_code)
 	return kvm_hyp_handle_fpsimd(vcpu, exit_code);
 }
 
+/*
+ * Handler for protected VM HVC calls.
+ *
+ * Returns true if the hypervisor has handled the exit, and control should go
+ * back to the guest, or false if it hasn't.
+ */
+static bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	return pkvm_handle_hvc64(vcpu);
+}
+
 static const exit_handler_fn hyp_exit_handlers[] = {
 	[0 ... ESR_ELx_EC_MAX]		= NULL,
 	[ESR_ELx_EC_CP15_32]		= kvm_hyp_handle_cp15_32,
@@ -205,6 +216,7 @@ static const exit_handler_fn hyp_exit_handlers[] = {
 
 static const exit_handler_fn pvm_exit_handlers[] = {
 	[0 ... ESR_ELx_EC_MAX]		= NULL,
+	[ESR_ELx_EC_HVC64]		= kvm_handle_pvm_hvc64,
 	[ESR_ELx_EC_SYS64]		= kvm_handle_pvm_sys64,
 	[ESR_ELx_EC_SVE]		= kvm_handle_pvm_restricted,
 	[ESR_ELx_EC_FP_ASIMD]		= kvm_handle_pvm_fpsimd,
-- 
GitLab


From c20fef387cd27d1df6b1e156f615e09259120277 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 10 Nov 2021 12:31:25 +0000
Subject: [PATCH 2668/4878] ANDROID: KVM: arm64: Avoid BBM when changing only
 s/w bits in Stage-2 PTE

Break-before-make (BBM) can be expensive, as transitioning via an
invalid mapping (i.e. the "break" step) requires the completion of TLB
invalidation and can also cause other agents to fault concurrently on
the invalid mapping.

Since BBM is not required when changing only the software bits of a PTE,
avoid the sequence in this case and just update the PTE directly.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: Ib4858b2491b221490b74cb5100474acaad711483
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 2cb3867eb7c2b..afbebef340443 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -744,6 +744,13 @@ static int stage2_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 		if (!stage2_pte_needs_update(old, new))
 			return -EAGAIN;
 
+		/*
+		 * If we're only changing software bits, then we don't need to
+		 * do anything else/
+		 */
+		if (!((old ^ new) & ~KVM_PTE_LEAF_ATTR_HI_SW))
+			goto out_set_pte;
+
 		stage2_put_pte(ptep, data->mmu, addr, level, mm_ops);
 	}
 
@@ -755,9 +762,11 @@ static int stage2_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 	if (mm_ops->icache_inval_pou && stage2_pte_executable(new))
 		mm_ops->icache_inval_pou(kvm_pte_follow(new, mm_ops), granule);
 
-	smp_store_release(ptep, new);
 	if (stage2_pte_is_counted(new))
 		mm_ops->get_page(ptep);
+
+out_set_pte:
+	smp_store_release(ptep, new);
 	if (kvm_phys_is_valid(phys))
 		data->phys += granule;
 	return 0;
-- 
GitLab


From 19ea294eedb1a419338d5a705cc1180f5b2c1a70 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Fri, 8 Oct 2021 11:08:02 +0100
Subject: [PATCH 2669/4878] ANDROID: KVM: arm64: Provide a helper to compute
 the size of stage-2 PGDs

We will soon need to donate memory to the hypervisor in protected mode
when creating guest VMs. The amount of memory to be donated will depend on
the size of the (potentially concatenated) stage-2 PGD for that guest,
among other things. To prepare the ground for this donation, introduce a
helper in the KVM page-table library allowing to compute the size of a
stage-2 PGD given a VTCR.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I266f85d17415e72eb574afdb1d8b622d87b9fcc3
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pgtable.h | 8 ++++++++
 arch/arm64/kvm/hyp/pgtable.c         | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 9f339dffbc1a7..2d6b5058f7d30 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -288,6 +288,14 @@ u64 kvm_pgtable_hyp_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size);
  */
 u64 kvm_get_vtcr(u64 mmfr0, u64 mmfr1, u32 phys_shift);
 
+/*
+ * kvm_pgtable_stage2_pgd_size() - Helper to compute size of a stage-2 PGD
+ * @vtcr:	Content of the VTCR register.
+ *
+ * Return: the size (in bytes) of the stage-2 PGD
+ */
+size_t kvm_pgtable_stage2_pgd_size(u64 vtcr);
+
 /**
  * __kvm_pgtable_stage2_init() - Initialise a guest stage-2 page-table.
  * @pgt:	Uninitialised page-table structure to initialise.
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index afbebef340443..c8a5c9cb20ef1 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -1209,6 +1209,15 @@ int __kvm_pgtable_stage2_init(struct kvm_pgtable *pgt, struct kvm_s2_mmu *mmu,
 	return 0;
 }
 
+size_t kvm_pgtable_stage2_pgd_size(u64 vtcr)
+{
+	u32 ia_bits = VTCR_EL2_IPA(vtcr);
+	u32 sl0 = FIELD_GET(VTCR_EL2_SL0_MASK, vtcr);
+	u32 start_level = VTCR_EL2_TGRAN_SL0_BASE - sl0;
+
+	return kvm_pgd_pages(ia_bits, start_level) * PAGE_SIZE;
+}
+
 static int stage2_free_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 			      enum kvm_pgtable_walk_flags flag,
 			      void * const arg)
-- 
GitLab


From 12a7e2d061921edf845ec8118917dab0a5019756 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 27 May 2021 16:15:15 +0000
Subject: [PATCH 2670/4878] ANDROID: KVM: arm64: Allow non-coallescable pages
 in a hyp_pool

All the contiguous pages used to initialize a hyp_pool are considered
coalesceable, which means that the hyp page allocator will actively
try to merge them with their buddies on the hyp_put_page() path.
However, using hyp_put_page() on a page that is not part of the inital
memory range given to a hyp_pool() is currently unsupported.

In order to allow dynamically extending hyp pools at run-time, add a
check to __hyp_attach_page() to allow inserting 'external' pages into
the free-list of order 0. This will be necessary to allow lazy
donation of pages from the host to the hypervisor when allocating guest
stage-2 page-table pages at EL2.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I3e3a6cb513f4fcc8b9683784c41fa6d3af119ac4
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/page_alloc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index 31c073dcf478e..aa72fd2546ab3 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -93,11 +93,15 @@ static inline struct hyp_page *node_to_page(struct list_head *node)
 static void __hyp_attach_page(struct hyp_pool *pool,
 			      struct hyp_page *p)
 {
+	phys_addr_t phys = hyp_page_to_phys(p);
 	unsigned short order = p->order;
 	struct hyp_page *buddy;
 
 	memset(hyp_page_to_virt(p), 0, PAGE_SIZE << p->order);
 
+	if (phys < pool->range_start || phys >= pool->range_end)
+		goto insert;
+
 	/*
 	 * Only the first struct hyp_page of a high-order page (otherwise known
 	 * as the 'head') should have p->order set. The non-head pages should
@@ -116,6 +120,7 @@ static void __hyp_attach_page(struct hyp_pool *pool,
 		p = min(p, buddy);
 	}
 
+insert:
 	/* Mark the new head, and insert it */
 	p->order = order;
 	page_add_to_list(p, &pool->free_area[order]);
-- 
GitLab


From 2549cef744b7c46d4c65796f8e0f032bb8960a55 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 29 Sep 2021 12:13:19 +0100
Subject: [PATCH 2671/4878] ANDROID: KVM: arm64: Consolidate stage-2 init in
 one function

The initialization of stage-2 page-tables of guests is currently split
across two functions: kvm_init_stage2_mmu() and kvm_arm_setup_stage2().
That is presumably for historical reasons as kvm_arm_setup_stage2()
originates from the (now defunct) KVM port for 32bit Arm.

Simplify this code path by merging both functions into one, and while at
it make sure to map the kvm struct into the hypervisor stage-1 early on
to simplify the failure path.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I1f9db0251f24e9712607f0c13c9f4017734d3b0f
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_arm.h  |  2 +-
 arch/arm64/include/asm/kvm_host.h |  2 --
 arch/arm64/include/asm/kvm_mmu.h  |  2 +-
 arch/arm64/kvm/arm.c              | 11 ++---------
 arch/arm64/kvm/mmu.c              | 27 ++++++++++++++++++++++++++-
 arch/arm64/kvm/reset.c            | 29 -----------------------------
 6 files changed, 30 insertions(+), 43 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 337d77d5fc231..7463d2cc435a4 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -134,7 +134,7 @@
  * 40 bits wide (T0SZ = 24).  Systems with a PARange smaller than 40 bits are
  * not known to exist and will break with this configuration.
  *
- * The VTCR_EL2 is configured per VM and is initialised in kvm_arm_setup_stage2().
+ * The VTCR_EL2 is configured per VM and is initialised in kvm_init_stage2_mmu.
  *
  * Note that when using 4K pages, we concatenate two first level page tables
  * together. With 16K pages, we concatenate 16 first level page tables.
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 22aea79e76a11..98afc42af7cc8 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -841,8 +841,6 @@ int kvm_set_ipa_limit(void);
 struct kvm *kvm_arch_alloc_vm(void);
 void kvm_arch_free_vm(struct kvm *kvm);
 
-int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type);
-
 static inline bool kvm_vm_is_protected(struct kvm *kvm)
 {
 	return false;
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 81839e9a8a242..0c2589513be38 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -161,7 +161,7 @@ int create_hyp_exec_mappings(phys_addr_t phys_addr, size_t size,
 void free_hyp_pgds(void);
 
 void stage2_unmap_vm(struct kvm *kvm);
-int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu);
+int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long type);
 void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu);
 int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
 			  phys_addr_t pa, unsigned long size, bool writable);
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 1489e39279dde..70d431c185851 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -138,18 +138,14 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 {
 	int ret;
 
-	ret = kvm_arm_setup_stage2(kvm, type);
+	ret = kvm_share_hyp(kvm, kvm + 1);
 	if (ret)
 		return ret;
 
-	ret = kvm_init_stage2_mmu(kvm, &kvm->arch.mmu);
+	ret = kvm_init_stage2_mmu(kvm, &kvm->arch.mmu, type);
 	if (ret)
 		return ret;
 
-	ret = kvm_share_hyp(kvm, kvm + 1);
-	if (ret)
-		goto out_free_stage2_pgd;
-
 	kvm_vgic_early_init(kvm);
 
 	/* The maximum number of VCPUs is limited by the host's GIC model */
@@ -157,9 +153,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 
 	set_default_spectre(kvm);
 
-	return ret;
-out_free_stage2_pgd:
-	kvm_free_stage2_pgd(&kvm->arch.mmu);
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index ef844c46fb8ed..c92ca3affb2bf 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -618,15 +618,40 @@ static struct kvm_pgtable_mm_ops kvm_s2_mm_ops = {
  * kvm_init_stage2_mmu - Initialise a S2 MMU strucrure
  * @kvm:	The pointer to the KVM structure
  * @mmu:	The pointer to the s2 MMU structure
+ * @type:	The machine type of the virtual machine
  *
  * Allocates only the stage-2 HW PGD level table(s).
  * Note we don't need locking here as this is only called when the VM is
  * created, which can only be done once.
  */
-int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu)
+int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long type)
 {
+	u32 kvm_ipa_limit = get_kvm_ipa_limit();
 	int cpu, err;
 	struct kvm_pgtable *pgt;
+	u64 mmfr0, mmfr1;
+	u32 phys_shift;
+
+	if (type & ~KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
+		return -EINVAL;
+
+	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
+	if (phys_shift) {
+		if (phys_shift > kvm_ipa_limit ||
+		    phys_shift < ARM64_MIN_PARANGE_BITS)
+			return -EINVAL;
+	} else {
+		phys_shift = KVM_PHYS_SHIFT;
+		if (phys_shift > kvm_ipa_limit) {
+			pr_warn_once("%s using unsupported default IPA limit, upgrade your VMM\n",
+				     current->comm);
+			return -EINVAL;
+		}
+	}
+
+	mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
+	mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
+	kvm->arch.vtcr = kvm_get_vtcr(mmfr0, mmfr1, phys_shift);
 
 	if (mmu->pgt != NULL) {
 		kvm_err("kvm_arch already initialized?\n");
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 32e07c68908c5..0eee9ea0ab245 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -345,32 +345,3 @@ int kvm_set_ipa_limit(void)
 
 	return 0;
 }
-
-int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type)
-{
-	u64 mmfr0, mmfr1;
-	u32 phys_shift;
-
-	if (type & ~KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
-		return -EINVAL;
-
-	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
-	if (phys_shift) {
-		if (phys_shift > kvm_ipa_limit ||
-		    phys_shift < ARM64_MIN_PARANGE_BITS)
-			return -EINVAL;
-	} else {
-		phys_shift = KVM_PHYS_SHIFT;
-		if (phys_shift > kvm_ipa_limit) {
-			pr_warn_once("%s using unsupported default IPA limit, upgrade your VMM\n",
-				     current->comm);
-			return -EINVAL;
-		}
-	}
-
-	mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
-	mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
-	kvm->arch.vtcr = kvm_get_vtcr(mmfr0, mmfr1, phys_shift);
-
-	return 0;
-}
-- 
GitLab


From 4170e1abe7ebd2a46c5266de7b5f9ec99b350e45 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 21 Oct 2021 10:18:24 +0100
Subject: [PATCH 2672/4878] ANDROID: KVM: arm64: Add generic hyp_memcache
 helpers

The host and hypervisor will need to dynamically exchange memory pages
soon. Indeed, the hypervisor will rely on the host to donate memory
pages it can use to create guest stage-2 page-table and to store
metadata. In order to ease this process, introduce a struct hyp_memcache
which is essentially a linked list of available pages, indexed by
physical addresses.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Iae46d01e4c0f75cc637adf50a7d0a879d85dff5e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h | 54 +++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 98afc42af7cc8..1998e77c8ae83 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -71,6 +71,60 @@ u32 __attribute_const__ kvm_target_cpu(void);
 int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
 void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu);
 
+struct kvm_hyp_memcache {
+	phys_addr_t head;
+	unsigned long nr_pages;
+};
+
+static inline void push_hyp_memcache(struct kvm_hyp_memcache *mc,
+				     phys_addr_t *p,
+				     phys_addr_t (*to_pa)(void *virt))
+{
+	*p = mc->head;
+	mc->head = to_pa(p);
+	mc->nr_pages++;
+}
+
+static inline void *pop_hyp_memcache(struct kvm_hyp_memcache *mc,
+				     void *(*to_va)(phys_addr_t phys))
+{
+	phys_addr_t *p = to_va(mc->head);
+
+	if (!mc->nr_pages)
+		return NULL;
+
+	mc->head = *p;
+	mc->nr_pages--;
+
+	return p;
+}
+
+static inline int __topup_hyp_memcache(struct kvm_hyp_memcache *mc,
+				       unsigned long min_pages,
+				       void *(*alloc_fn)(void *arg),
+				       phys_addr_t (*to_pa)(void *virt),
+				       void *arg)
+{
+	while (mc->nr_pages < min_pages) {
+		phys_addr_t *p = alloc_fn(arg);
+
+		if (!p)
+			return -ENOMEM;
+		push_hyp_memcache(mc, p, to_pa);
+	}
+
+	return 0;
+}
+
+static inline void __free_hyp_memcache(struct kvm_hyp_memcache *mc,
+				       void (*free_fn)(void *virt, void *arg),
+				       void *(*to_va)(phys_addr_t phys),
+				       void *arg)
+{
+	while (mc->nr_pages)
+		free_fn(pop_hyp_memcache(mc, to_va), arg);
+}
+
 struct kvm_vmid {
 	/* The VMID generation used for the virt. memory system */
 	u64    vmid_gen;
-- 
GitLab


From e9e9cffee93a62cc4c185e257483307a2aed25a5 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 21 Oct 2021 10:19:05 +0100
Subject: [PATCH 2673/4878] ANDROID: KVM: arm64: Add hyp_memcache helpers for
 the kernel

Introduce helper functions easing the manipulation of a hyp_memcache
from the kernel.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I42f2718e059f0cb32b7007e390ba758ba68ddd0c
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/mmu.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index c92ca3affb2bf..4bee458fd1985 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -776,6 +776,33 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
 	}
 }
 
+static void hyp_mc_free_fn(void *addr, void *unused)
+{
+	free_page((unsigned long)addr);
+}
+
+static void *hyp_mc_alloc_fn(void *unused)
+{
+	return (void *)__get_free_page(GFP_KERNEL_ACCOUNT);
+}
+
+void free_hyp_memcache(struct kvm_hyp_memcache *mc)
+{
+	if (is_protected_kvm_enabled())
+		__free_hyp_memcache(mc, hyp_mc_free_fn,
+				    kvm_host_va, NULL);
+}
+
+static int topup_hyp_memcache(struct kvm_hyp_memcache *mc,
+			      unsigned long min_pages)
+{
+	if (!is_protected_kvm_enabled())
+		return 0;
+
+	return __topup_hyp_memcache(mc, min_pages, hyp_mc_alloc_fn,
+				    kvm_host_pa, NULL);
+}
+
 /**
  * kvm_phys_addr_ioremap - map a device range to guest IPA
  *
-- 
GitLab


From 4cd08ce60422b1b5cab64006674b78ecf657029d Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 21 Oct 2021 10:21:50 +0100
Subject: [PATCH 2674/4878] ANDROID: KVM: arm64: Add hyp_memcache helpers for
 pkvm

Introduce helper functions easing the manipulation of a hyp_memcache at
EL2 in nVHE protected mode.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I3c1bda86eae67adfa4d0424e68aa5e842562b43c
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  2 ++
 arch/arm64/kvm/hyp/nvhe/mm.c                  | 28 +++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 0e2e175486a01..53a6d1355dcce 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -67,6 +67,8 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt);
 
 int hyp_pin_shared_mem(void *from, void *to);
 void hyp_unpin_shared_mem(void *from, void *to);
+int refill_memcache(struct kvm_hyp_memcache *mc, unsigned long min_pages,
+		    struct kvm_hyp_memcache *host_mc);
 
 static __always_inline void __load_host_stage2(void)
 {
diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 808a499189e5d..20bb0ba0d61a4 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -14,6 +14,7 @@
 #include <nvhe/early_alloc.h>
 #include <nvhe/gfp.h>
 #include <nvhe/memory.h>
+#include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
 #include <nvhe/spinlock.h>
 
@@ -210,3 +211,30 @@ int hyp_create_idmap(u32 hyp_va_bits)
 
 	return __pkvm_create_mappings(start, end - start, start, PAGE_HYP_EXEC);
 }
+
+static void *admit_host_page(void *arg)
+{
+	struct kvm_hyp_memcache *host_mc = arg;
+
+	if (!host_mc->nr_pages)
+		return NULL;
+
+	/*
+	 * The host still owns the pages in its memcache, so we need to go
+	 * through a full host-to-hyp donation cycle to change it. Fortunately,
+	 * __pkvm_host_donate_hyp() takes care of races for us, so if it
+	 * succeeds we're good to go.
+	 */
+	if (__pkvm_host_donate_hyp(hyp_phys_to_pfn(host_mc->head), 1))
+		return NULL;
+
+	return pop_hyp_memcache(host_mc, hyp_phys_to_virt);
+}
+
+/* Refill our local memcache by poping pages from the one provided by the host. */
+int refill_memcache(struct kvm_hyp_memcache *mc, unsigned long min_pages,
+		    struct kvm_hyp_memcache *host_mc)
+{
+	return __topup_hyp_memcache(mc, min_pages, admit_host_page,
+				    hyp_virt_to_phys, host_mc);
+}
-- 
GitLab


From b651d43f2a243d09c57856a323abf37bb0fd7f4d Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 30 Nov 2021 13:47:02 +0000
Subject: [PATCH 2675/4878] ANDROID: arm64: Annotate icache_inval_pou as
 position-independent

In preparation for re-using icache_inval_pou from the EL2 nVHE
hypervisor, annotate it as position-independent.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I66fbf42239a891bfd149c79bf77379fea124793e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/mm/cache.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S
index 5051b3c1a4f12..7835c22db1750 100644
--- a/arch/arm64/mm/cache.S
+++ b/arch/arm64/mm/cache.S
@@ -88,7 +88,7 @@ SYM_FUNC_END(caches_clean_inval_user_pou)
  *	- start   - virtual start address of region
  *	- end     - virtual end address of region
  */
-SYM_FUNC_START(icache_inval_pou)
+SYM_FUNC_START_PI(icache_inval_pou)
 alternative_if ARM64_HAS_CACHE_DIC
 	isb
 	ret
@@ -96,7 +96,7 @@ alternative_else_nop_endif
 
 	invalidate_icache_by_line x0, x1, x2, x3
 	ret
-SYM_FUNC_END(icache_inval_pou)
+SYM_FUNC_END_PI(icache_inval_pou)
 
 /*
  *	dcache_clean_inval_poc(start, end)
-- 
GitLab


From f368076661931eb416debd3437ad97a737fdecb5 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 18 Nov 2021 15:53:44 +0000
Subject: [PATCH 2676/4878] ANDROID: BACKPORT: KVM: arm64: Make hyp stage-1
 refcnt correct on the whole range

We currently fixup the hypervisor stage-1 refcount only for specific
portions of the hyp stage-1 VA space. In order to allow unmapping pages
outside of these ranges, let's fixup the refcount for the entire hyp VA
space.

Signed-off-by: Quentin Perret <qperret@google.com>
[willdeacon@: Fix context conflicts with IOMMU init in __pkvm_init_finalise()]
Bug: 209580772
Change-Id: I11d6374d9416bc97cf85fc33bb87c21369412c49
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 62 +++++++++++++++++++++++----------
 1 file changed, 43 insertions(+), 19 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index a0e1b4f33b16b..8f1162c20c485 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -165,12 +165,11 @@ static void hpool_put_page(void *addr)
 	hyp_put_page(&hpool, addr);
 }
 
-static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
-					 kvm_pte_t *ptep,
-					 enum kvm_pgtable_walk_flags flag,
-					 void * const arg)
+static int fix_host_ownership_walker(u64 addr, u64 end, u32 level,
+				     kvm_pte_t *ptep,
+				     enum kvm_pgtable_walk_flags flag,
+				     void * const arg)
 {
-	struct kvm_pgtable_mm_ops *mm_ops = arg;
 	enum kvm_pgtable_prot prot;
 	enum pkvm_page_state state;
 	kvm_pte_t pte = *ptep;
@@ -179,15 +178,6 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 	if (!kvm_pte_valid(pte))
 		return 0;
 
-	/*
-	 * Fix-up the refcount for the page-table pages as the early allocator
-	 * was unable to access the hyp_vmemmap and so the buddy allocator has
-	 * initialised the refcount to '1'.
-	 */
-	mm_ops->get_page(ptep);
-	if (flag != KVM_PGTABLE_WALK_LEAF)
-		return 0;
-
 	if (level != (KVM_PGTABLE_MAX_LEVELS - 1))
 		return -EINVAL;
 
@@ -216,12 +206,30 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level,
 	return host_stage2_idmap_locked(phys, PAGE_SIZE, prot);
 }
 
-static int finalize_host_mappings(void)
+static int fix_hyp_pgtable_refcnt_walker(u64 addr, u64 end, u32 level,
+					 kvm_pte_t *ptep,
+					 enum kvm_pgtable_walk_flags flag,
+					 void * const arg)
+{
+	struct kvm_pgtable_mm_ops *mm_ops = arg;
+	kvm_pte_t pte = *ptep;
+
+	/*
+	 * Fix-up the refcount for the page-table pages as the early allocator
+	 * was unable to access the hyp_vmemmap and so the buddy allocator has
+	 * initialised the refcount to '1'.
+	 */
+	if (kvm_pte_valid(pte))
+		mm_ops->get_page(ptep);
+
+	return 0;
+}
+
+static int fix_host_ownership(void)
 {
 	struct kvm_pgtable_walker walker = {
-		.cb	= finalize_host_mappings_walker,
-		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
-		.arg	= pkvm_pgtable.mm_ops,
+		.cb	= fix_host_ownership_walker,
+		.flags	= KVM_PGTABLE_WALK_LEAF,
 	};
 	int i, ret;
 
@@ -237,6 +245,18 @@ static int finalize_host_mappings(void)
 	return 0;
 }
 
+static int fix_hyp_pgtable_refcnt(void)
+{
+	struct kvm_pgtable_walker walker = {
+		.cb	= fix_hyp_pgtable_refcnt_walker,
+		.flags	= KVM_PGTABLE_WALK_LEAF | KVM_PGTABLE_WALK_TABLE_POST,
+		.arg	= pkvm_pgtable.mm_ops,
+	};
+
+	return kvm_pgtable_walk(&pkvm_pgtable, 0, BIT(pkvm_pgtable.ia_bits),
+				&walker);
+}
+
 static int select_iommu_ops(enum kvm_iommu_driver driver)
 {
 	switch (driver) {
@@ -288,7 +308,11 @@ void __noreturn __pkvm_init_finalise(void)
 			goto out;
 	}
 
-	ret = finalize_host_mappings();
+	ret = fix_host_ownership();
+	if (ret)
+		goto out;
+
+	ret = fix_hyp_pgtable_refcnt();
 	if (ret)
 		goto out;
 
-- 
GitLab


From a6c9e5720b02670373c69b19d330a8509732f6c1 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 17 Nov 2021 17:09:25 +0000
Subject: [PATCH 2677/4878] ANDROID: KVM: arm64: Factor out private range VA
 allocation

__pkvm_create_private_mapping() is currently responsible for allocating
VA space in the hypervisor's "private" range and creating stage-1
mappings. In order to allow reusing the VA space allocation logic from
other places, let's factor it out in a standalone function.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I9cb82937931d272f9f61297a3f5dea0e039c2595
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/mm.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 20bb0ba0d61a4..01d7a41825617 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -38,6 +38,22 @@ static int __pkvm_create_mappings(unsigned long start, unsigned long size,
 	return err;
 }
 
+static unsigned long hyp_alloc_private_va_range(size_t size)
+{
+	unsigned long addr = __io_map_base;
+
+	hyp_assert_lock_held(&pkvm_pgd_lock);
+	__io_map_base += PAGE_ALIGN(size);
+
+	/* Are we overflowing on the vmemmap ? */
+	if (__io_map_base > __hyp_vmemmap) {
+		__io_map_base = addr;
+		addr = (unsigned long)ERR_PTR(-ENOMEM);
+	}
+
+	return addr;
+}
+
 unsigned long __pkvm_create_private_mapping(phys_addr_t phys, size_t size,
 					    enum kvm_pgtable_prot prot)
 {
@@ -46,16 +62,10 @@ unsigned long __pkvm_create_private_mapping(phys_addr_t phys, size_t size,
 
 	hyp_spin_lock(&pkvm_pgd_lock);
 
-	size = PAGE_ALIGN(size + offset_in_page(phys));
-	addr = __io_map_base;
-	__io_map_base += size;
-
-	/* Are we overflowing on the vmemmap ? */
-	if (__io_map_base > __hyp_vmemmap) {
-		__io_map_base -= size;
-		addr = (unsigned long)ERR_PTR(-ENOMEM);
+	size = size + offset_in_page(phys);
+	addr = hyp_alloc_private_va_range(size);
+	if (IS_ERR((void *)addr))
 		goto out;
-	}
 
 	err = kvm_pgtable_hyp_map(&pkvm_pgtable, addr, size, phys, prot);
 	if (err) {
-- 
GitLab


From 154cf3e73f6fccd29e0902e5dd39cbd2d34b7c58 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 17 Nov 2021 18:42:46 +0000
Subject: [PATCH 2678/4878] ANDROID: KVM: arm64: Add pcpu fixmap infrastructure
 at EL2

We will soon need to temporarily map pages into the hypervisor stage-1
in nVHE protected mode. To do this efficiently, let's introduce a
per-cpu fixmap allowing to map a single page without needing to take any
lock or to allocate memory.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Id5cbfd04c5c465c9c577a5fac67458331096b581
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  2 +
 arch/arm64/kvm/hyp/include/nvhe/mm.h          |  4 +
 arch/arm64/kvm/hyp/nvhe/mm.c                  | 84 +++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/setup.c               |  4 +
 4 files changed, 94 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 53a6d1355dcce..7db0bdbb3389b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -53,6 +53,8 @@ extern struct host_kvm host_kvm;
 
 extern const u8 pkvm_hyp_id;
 
+extern unsigned long hyp_nr_cpus;
+
 int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
 int __pkvm_host_unshare_hyp(u64 pfn);
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mm.h b/arch/arm64/kvm/hyp/include/nvhe/mm.h
index 73309ccc192ec..45b04bfee171e 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mm.h
@@ -13,6 +13,10 @@
 extern struct kvm_pgtable pkvm_pgtable;
 extern hyp_spinlock_t pkvm_pgd_lock;
 
+int hyp_create_pcpu_fixmap(void);
+void *hyp_fixmap_map(phys_addr_t phys);
+int hyp_fixmap_unmap(void);
+
 int hyp_create_idmap(u32 hyp_va_bits);
 int hyp_map_vectors(void);
 int hyp_back_vmemmap(phys_addr_t back);
diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 01d7a41825617..802ff8c1f2e32 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -25,6 +25,7 @@ struct memblock_region hyp_memory[HYP_MEMBLOCK_REGIONS];
 unsigned int hyp_memblock_nr;
 
 static u64 __io_map_base;
+static DEFINE_PER_CPU(void *, hyp_fixmap_base);
 
 static int __pkvm_create_mappings(unsigned long start, unsigned long size,
 				  unsigned long phys, enum kvm_pgtable_prot prot)
@@ -197,6 +198,89 @@ int hyp_map_vectors(void)
 	return 0;
 }
 
+void *hyp_fixmap_map(phys_addr_t phys)
+{
+	void *addr = *this_cpu_ptr(&hyp_fixmap_base);
+	int ret = kvm_pgtable_hyp_map(&pkvm_pgtable, (u64)addr, PAGE_SIZE,
+				      phys, PAGE_HYP);
+	return ret ? NULL : addr;
+}
+
+int hyp_fixmap_unmap(void)
+{
+	void *addr = *this_cpu_ptr(&hyp_fixmap_base);
+	int ret = kvm_pgtable_hyp_unmap(&pkvm_pgtable, (u64)addr, PAGE_SIZE);
+
+	return (ret != PAGE_SIZE) ? -EINVAL : 0;
+}
+
+static int __pin_pgtable_cb(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
+			    enum kvm_pgtable_walk_flags flag, void * const arg)
+{
+	if (!kvm_pte_valid(*ptep) || level != KVM_PGTABLE_MAX_LEVELS - 1)
+		return -EINVAL;
+	hyp_page_ref_inc(hyp_virt_to_page(ptep));
+
+	return 0;
+}
+
+static int hyp_pin_pgtable_pages(u64 addr)
+{
+	struct kvm_pgtable_walker walker = {
+		.cb	= __pin_pgtable_cb,
+		.flags	= KVM_PGTABLE_WALK_LEAF,
+	};
+
+	return kvm_pgtable_walk(&pkvm_pgtable, addr, PAGE_SIZE, &walker);
+}
+
+int hyp_create_pcpu_fixmap(void)
+{
+	unsigned long i;
+	int ret = 0;
+	u64 addr;
+
+	hyp_spin_lock(&pkvm_pgd_lock);
+
+	for (i = 0; i < hyp_nr_cpus; i++) {
+		addr = hyp_alloc_private_va_range(PAGE_SIZE);
+		if (IS_ERR((void *)addr)) {
+			ret = -ENOMEM;
+			goto unlock;
+		}
+
+		/*
+		 * Create a dummy mapping, to get the intermediate page-table
+		 * pages allocated, then take a reference on the last level
+		 * page to keep it around at all times.
+		 */
+		ret = kvm_pgtable_hyp_map(&pkvm_pgtable, addr, PAGE_SIZE,
+					  __hyp_pa(__hyp_bss_start), PAGE_HYP);
+		if (ret) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+
+		ret = hyp_pin_pgtable_pages(addr);
+		if (ret)
+			goto unlock;
+
+		ret = kvm_pgtable_hyp_unmap(&pkvm_pgtable, addr, PAGE_SIZE);
+		if (ret != PAGE_SIZE) {
+			ret = -EINVAL;
+			goto unlock;
+		} else {
+			ret = 0;
+		}
+
+		*per_cpu_ptr(&hyp_fixmap_base, i) = (void *)addr;
+	}
+unlock:
+	hyp_spin_unlock(&pkvm_pgd_lock);
+
+	return ret;
+}
+
 int hyp_create_idmap(u32 hyp_va_bits)
 {
 	unsigned long start, end;
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 8f1162c20c485..5c8d45d31bf21 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -316,6 +316,10 @@ void __noreturn __pkvm_init_finalise(void)
 	if (ret)
 		goto out;
 
+	ret = hyp_create_pcpu_fixmap();
+	if (ret)
+		goto out;
+
 out:
 	/*
 	 * We tail-called to here from handle___pkvm_init() and will not return,
-- 
GitLab


From ce5990f21cf26750ae6adab15f7c1de25e5abee5 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 21 Oct 2021 10:23:57 +0100
Subject: [PATCH 2679/4878] ANDROID: KVM: arm64: Prepare EL2 guest stage-2
 page-table

In preparation for managing the stage-2 page-table of guests at EL2 in
nVHE protected mode, allocate memory for the guest PGDs and populate the
shadow kvm_s2_mmu upon shadow creation.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I39f9dec9dc1bb60fe66ec6923f9b4dedc3e37f3f
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |   1 +
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h        |  14 +-
 arch/arm64/kvm/hyp/nvhe/cache.S               |  10 ++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |   3 +-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 129 ++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/pkvm.c                |  37 +++--
 arch/arm64/kvm/mmu.c                          |   4 +-
 arch/arm64/kvm/pkvm.c                         |  29 +++-
 8 files changed, 205 insertions(+), 22 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 7db0bdbb3389b..28496fdd7550e 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -65,6 +65,7 @@ bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
 int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id);
 int kvm_host_prepare_stage2(void *pgt_pool_base);
+int kvm_guest_prepare_stage2(struct kvm_shadow_vm *vm, void *pgd);
 void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt);
 
 int hyp_pin_shared_mem(void *from, void *to);
diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 6ddd1df812cf9..c1c0d79cbac5b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -9,6 +9,9 @@
 
 #include <asm/kvm_pkvm.h>
 
+#include <nvhe/gfp.h>
+#include <nvhe/spinlock.h>
+
 /*
  * A container for the vcpu state that hyp needs to maintain for protected VMs.
  */
@@ -24,9 +27,6 @@ struct kvm_shadow_vm {
 	/* A unique id to the shadow structs in the hyp shadow area. */
 	int shadow_handle;
 
-	/* A pointer to the s2 mmu for the protected vm.. */
-	struct kvm_s2_mmu *mmu;
-
 	/* Number of vcpus for the vm. */
 	int created_vcpus;
 
@@ -39,13 +39,19 @@ struct kvm_shadow_vm {
 	/* The total size of the donated shadow area. */
 	size_t shadow_area_size;
 
+	struct kvm_arch arch;
+	struct kvm_pgtable pgt;
+	struct kvm_pgtable_mm_ops mm_ops;
+	struct hyp_pool pool;
+	hyp_spinlock_t lock;
+
 	/* Array of the shadow state per vcpu. */
 	struct shadow_vcpu_state shadow_vcpus[0];
 };
 
 extern struct kvm_shadow_vm **shadow_table;
 
-int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size);
+int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size, void *pgd);
 int __pkvm_teardown_shadow(struct kvm *kvm);
 struct kvm_vcpu *hyp_get_shadow_vcpu(const struct kvm_vcpu *host_vcpu);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/cache.S b/arch/arm64/kvm/hyp/nvhe/cache.S
index 958734f4d6b0e..4c447f2a31e16 100644
--- a/arch/arm64/kvm/hyp/nvhe/cache.S
+++ b/arch/arm64/kvm/hyp/nvhe/cache.S
@@ -11,3 +11,13 @@ SYM_FUNC_START_PI(dcache_clean_inval_poc)
 	dcache_by_line_op civac, sy, x0, x1, x2, x3
 	ret
 SYM_FUNC_END_PI(dcache_clean_inval_poc)
+
+SYM_FUNC_START_PI(icache_inval_pou)
+alternative_if ARM64_HAS_CACHE_DIC
+	isb
+	ret
+alternative_else_nop_endif
+
+	invalidate_icache_by_line x0, x1, x2, x3
+	ret
+SYM_FUNC_END_PI(icache_inval_pou)
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 871c4ffe7ed6d..15edc7b990356 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -788,9 +788,10 @@ static void handle___pkvm_init_shadow(struct kvm_cpu_context *host_ctxt)
 	DECLARE_REG(struct kvm *, host_kvm, host_ctxt, 1);
 	DECLARE_REG(void *, host_shadow_va, host_ctxt, 2);
 	DECLARE_REG(size_t, shadow_size, host_ctxt, 3);
+	DECLARE_REG(void *, pgd, host_ctxt, 4);
 
 	cpu_reg(host_ctxt, 1) = __pkvm_init_shadow(host_kvm, host_shadow_va,
-						       shadow_size);
+						   shadow_size, pgd);
 }
 
 static void handle___pkvm_teardown_shadow(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 52e909db1eff7..afa707e1e31d8 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -19,6 +19,7 @@
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
+#include <nvhe/pkvm.h>
 
 #define KVM_HOST_S2_FLAGS (KVM_PGTABLE_S2_NOFWB | KVM_PGTABLE_S2_IDMAP)
 
@@ -30,6 +31,21 @@ static struct hyp_pool host_s2_pool;
 const u8 pkvm_host_id = 0;
 const u8 pkvm_hyp_id = 1;
 
+static DEFINE_PER_CPU(struct kvm_shadow_vm *, __current_vm);
+#define current_vm (*this_cpu_ptr(&__current_vm))
+
+static void __guest_lock(struct kvm_shadow_vm *vm)
+{
+	hyp_spin_lock(&vm->lock);
+	current_vm = vm;
+}
+
+static void __guest_unlock(struct kvm_shadow_vm *vm)
+{
+	current_vm = NULL;
+	hyp_spin_unlock(&vm->lock);
+}
+
 static void host_lock_component(void)
 {
 	hyp_spin_lock(&host_kvm.lock);
@@ -146,6 +162,119 @@ int kvm_host_prepare_stage2(void *pgt_pool_base)
 	return 0;
 }
 
+static bool guest_stage2_force_pte_cb(u64 addr, u64 end, enum kvm_pgtable_prot prot)
+{
+	return true;
+}
+
+static void *guest_s2_zalloc_pages_exact(size_t size)
+{
+	void *addr = hyp_alloc_pages(&current_vm->pool, get_order(size));
+
+	WARN_ON(size != (PAGE_SIZE << get_order(size)));
+	hyp_split_page(hyp_virt_to_page(addr));
+
+	return addr;
+}
+
+static void guest_s2_free_pages_exact(void *addr, unsigned long size)
+{
+	u8 order = get_order(size);
+	unsigned int i;
+
+	for (i = 0; i < (1 << order); i++)
+		hyp_put_page(&current_vm->pool, addr + (i * PAGE_SIZE));
+}
+
+static void *guest_s2_zalloc_page(void *mc)
+{
+	struct hyp_page *p;
+	void *addr;
+
+	addr = hyp_alloc_pages(&current_vm->pool, 0);
+	if (addr)
+		return addr;
+
+	addr = pop_hyp_memcache(mc, hyp_phys_to_virt);
+	if (!addr)
+		return addr;
+
+	memset(addr, 0, PAGE_SIZE);
+	p = hyp_virt_to_page(addr);
+	memset(p, 0, sizeof(*p));
+	p->refcount = 1;
+
+	return addr;
+}
+
+static void guest_s2_get_page(void *addr)
+{
+	hyp_get_page(&current_vm->pool, addr);
+}
+
+static void guest_s2_put_page(void *addr)
+{
+	hyp_put_page(&current_vm->pool, addr);
+}
+
+static void clean_dcache_guest_page(void *va, size_t size)
+{
+	__clean_dcache_guest_page(hyp_fixmap_map(__hyp_pa(va)), size);
+	hyp_fixmap_unmap();
+}
+
+static void invalidate_icache_guest_page(void *va, size_t size)
+{
+	__invalidate_icache_guest_page(hyp_fixmap_map(__hyp_pa(va)), size);
+	hyp_fixmap_unmap();
+}
+
+int kvm_guest_prepare_stage2(struct kvm_shadow_vm *vm, void *pgd)
+{
+	struct kvm_s2_mmu *mmu = &vm->arch.mmu;
+	unsigned long nr_pages;
+	int ret;
+
+	vm->arch.vtcr = host_kvm.arch.vtcr;
+	nr_pages = kvm_pgtable_stage2_pgd_size(vm->arch.vtcr) >> PAGE_SHIFT;
+	ret = __pkvm_host_donate_hyp(hyp_virt_to_pfn(pgd), nr_pages);
+	if (ret)
+		return ret;
+
+	ret = hyp_pool_init(&vm->pool, hyp_virt_to_pfn(pgd), nr_pages, 0);
+	if (ret)
+		goto err;
+
+	hyp_spin_lock_init(&vm->lock);
+	vm->mm_ops = (struct kvm_pgtable_mm_ops) {
+		.zalloc_pages_exact	= guest_s2_zalloc_pages_exact,
+		.free_pages_exact	= guest_s2_free_pages_exact,
+		.zalloc_page		= guest_s2_zalloc_page,
+		.phys_to_virt		= hyp_phys_to_virt,
+		.virt_to_phys		= hyp_virt_to_phys,
+		.page_count		= hyp_page_count,
+		.get_page		= guest_s2_get_page,
+		.put_page		= guest_s2_put_page,
+		.dcache_clean_inval_poc	= clean_dcache_guest_page,
+		.icache_inval_pou	= invalidate_icache_guest_page,
+	};
+
+	__guest_lock(vm);
+	ret = __kvm_pgtable_stage2_init(mmu->pgt, mmu, &vm->mm_ops, 0,
+					guest_stage2_force_pte_cb);
+	__guest_unlock(vm);
+	if (ret)
+		goto err;
+
+	vm->arch.mmu.pgd_phys = __hyp_pa(vm->pgt.pgd);
+
+	return 0;
+
+err:
+	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), nr_pages));
+	return ret;
+}
+
 int __pkvm_prot_finalize(void)
 {
 	struct kvm_s2_mmu *mmu = &host_kvm.arch.mmu;
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index db83670992ae6..dc8fe0ccaa45e 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -342,8 +342,6 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 	int i;
 	int ret;
 
-	/* TODO: initialize the protected MMU. For now, use the host's. */
-	vm->mmu = &kvm->arch.mmu;
 	vm->host_kvm = kvm;
 	vm->created_vcpus = 0;
 
@@ -372,8 +370,7 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 		vm->vcpus[i] = shadow_vcpu;
 		shadow_state->vm = vm;
 
-		/* TODO - use &vm->arch.mmu when setup properly */
-		shadow_vcpu->arch.hw_mmu = host_vcpu->arch.hw_mmu;
+		shadow_vcpu->arch.hw_mmu = &vm->arch.mmu;
 		shadow_vcpu->arch.pkvm.shadow_handle = vm->shadow_handle;
 		shadow_vcpu->arch.pkvm.host_vcpu = host_vcpu;
 		shadow_vcpu->arch.pkvm.shadow_vm = vm;
@@ -421,7 +418,9 @@ static bool exists_shadow(struct kvm *host_kvm)
 static int __insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
 			         size_t shadow_size)
 {
+	struct kvm_s2_mmu *mmu = &vm->arch.mmu;
 	int shadow_handle;
+	int vmid;
 
 	if (unlikely(num_shadow_entries >= KVM_MAX_PVMS))
 		return -ENOMEM;
@@ -445,6 +444,16 @@ static int __insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
 	vm->shadow_handle = shadow_handle;
 	vm->shadow_area_size = shadow_size;
 
+	/* VMID 0 is reserved for the host */
+	vmid = next_shadow_alloc + 1;
+	if (vmid > 0xff)
+		return -ENOMEM;
+
+	mmu->vmid.vmid = vmid;
+	mmu->vmid.vmid_gen = 0;
+	mmu->arch = &vm->arch;
+	mmu->pgt = &vm->pgt;
+
 	shadow_table[next_shadow_alloc] = vm;
 	next_shadow_alloc = (next_shadow_alloc + 1) % KVM_MAX_PVMS;
 	num_shadow_entries++;
@@ -517,7 +526,8 @@ static int check_shadow_size(int nr_vcpus, size_t shadow_size)
  */
 int __pkvm_init_shadow(struct kvm *kvm,
 		       void *shadow_va,
-		       size_t shadow_size)
+		       size_t shadow_size,
+		       void *pgd)
 {
 	struct kvm_shadow_vm *vm = kern_hyp_va(shadow_va);
 	phys_addr_t shadow_pa = hyp_virt_to_phys(vm);
@@ -548,19 +558,28 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	/* Add the entry to the shadow table. */
 	ret = insert_shadow_table(kvm, vm, shadow_size);
 	if (ret < 0)
-		goto err_clear_shadow;
+		goto err_remove_mappings;
 
 	ret = init_shadow_structs(kvm, vm, nr_vcpus);
 	if (ret < 0)
-		goto err_clear_shadow;
+		goto err_remove_shadow_table;
+
+	pgd = kern_hyp_va(pgd);
+	ret = kvm_guest_prepare_stage2(vm, pgd);
+	if (ret)
+		goto err_remove_shadow_table;
 
 	return vm->shadow_handle;
 
-err_clear_shadow:
+err_remove_shadow_table:
+	remove_shadow_table(vm->shadow_handle);
+
+err_remove_mappings:
 	unpin_host_vcpus(vm);
 	/* Clear the donated shadow memory on failure to avoid data leaks. */
 	memset(vm, 0, shadow_size);
-	WARN_ON(__pkvm_hyp_donate_host(pfn, nr_pages));
+	WARN_ON(__pkvm_hyp_donate_host(hyp_phys_to_pfn(shadow_pa),
+				       shadow_size >> PAGE_SHIFT));
 
 err:
 	hyp_unpin_shared_mem(kvm, kvm + 1);
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 4bee458fd1985..67f9788060a52 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -636,7 +636,9 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long t
 		return -EINVAL;
 
 	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
-	if (phys_shift) {
+	if (is_protected_kvm_enabled()) {
+		phys_shift = kvm_ipa_limit;
+	} else if (phys_shift) {
 		if (phys_shift > kvm_ipa_limit ||
 		    phys_shift < ARM64_MIN_PARANGE_BITS)
 			return -EINVAL;
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 21740614e2ece..90d4a15e9cd9e 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -120,9 +120,9 @@ static void update_vcpu_state(struct kvm_vcpu *vcpu, int shadow_handle)
  */
 static int create_el2_shadow(struct kvm *kvm)
 {
+	size_t pgd_sz, shadow_sz;
+	void *pgd, *shadow_addr;
 	int shadow_handle;
-	void *shadow_addr;
-	size_t shadow_sz;
 	int ret, i;
 
 	if (kvm->arch.pkvm.shadow_handle)
@@ -131,17 +131,30 @@ static int create_el2_shadow(struct kvm *kvm)
 	if (kvm->created_vcpus < 1)
 		return -EINVAL;
 
+	pgd_sz = kvm_pgtable_stage2_pgd_size(kvm->arch.vtcr);
+	/*
+	 * The PGD pages will be reclaimed using a hyp_memcache which implies
+	 * page granularity. So, use alloc_pages_exact() to get individual
+	 * refcounts.
+	 */
+	pgd = alloc_pages_exact(pgd_sz, GFP_KERNEL_ACCOUNT);
+	if (!pgd)
+		return -ENOMEM;
+
 	/* Allocate memory to donate to hyp for the kvm and vcpu state. */
 	shadow_sz = PAGE_ALIGN(KVM_SHADOW_VM_SIZE +
 			       SHADOW_VCPU_STATE_SIZE * kvm->created_vcpus);
 	shadow_addr = alloc_pages_exact(shadow_sz, GFP_KERNEL_ACCOUNT);
-	if (!shadow_addr)
-		return -ENOMEM;
+	if (!shadow_addr) {
+		ret = -ENOMEM;
+		goto free_pgd;
+	}
 
 	/* Donate the shadow memory to hyp and let hyp initialize it. */
-	ret = kvm_call_hyp_nvhe(__pkvm_init_shadow, kvm, shadow_addr, shadow_sz);
+	ret = kvm_call_hyp_nvhe(__pkvm_init_shadow, kvm, shadow_addr, shadow_sz,
+				pgd);
 	if (ret < 0)
-		goto err;
+		goto free_shadow;
 
 	shadow_handle = ret;
 
@@ -154,8 +167,10 @@ static int create_el2_shadow(struct kvm *kvm)
 
 	return 0;
 
-err:
+free_shadow:
 	free_pages_exact(shadow_addr, shadow_sz);
+free_pgd:
+	free_pages_exact(pgd, pgd_sz);
 	return ret;
 }
 
-- 
GitLab


From d9d39d7e131c2969a1dc197d3364af92ea52e492 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 3 Nov 2021 15:23:13 +0000
Subject: [PATCH 2680/4878] ANDROID: KVM: arm64: Reclaim guest page-table pages
 during teardown

The memory pages donated by the host to the hypervisor for the creation
of guest page-tables is currently never reclaimed. Fix this returning
those pages back to the host during guest teardown using a hyp_memcache.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I90615c34e61a11ca402c19d016bd40e3dd880637
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h             |  1 +
 arch/arm64/kvm/arm.c                          |  3 ++
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 54 +++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/pkvm.c                |  1 +
 5 files changed, 60 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 1998e77c8ae83..a0937a9a7902d 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -159,6 +159,7 @@ struct kvm_arch_memory_slot {
 struct kvm_protected_vm {
 	bool enabled;
 	int shadow_handle;
+	struct kvm_hyp_memcache teardown_mc;
 };
 
 struct kvm_arch {
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 70d431c185851..5252deddde96e 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -161,6 +161,7 @@ vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 	return VM_FAULT_SIGBUS;
 }
 
+void free_hyp_memcache(struct kvm_hyp_memcache *mc);
 static void kvm_shadow_destroy(struct kvm *kvm)
 {
 	if (!kvm_vm_is_protected(kvm))
@@ -168,6 +169,8 @@ static void kvm_shadow_destroy(struct kvm *kvm)
 
 	if (kvm->arch.pkvm.shadow_handle)
 		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
+
+	free_hyp_memcache(&kvm->arch.pkvm.teardown_mc);
 }
 
 /**
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 28496fdd7550e..64b3c8d8a21d5 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -72,6 +72,7 @@ int hyp_pin_shared_mem(void *from, void *to);
 void hyp_unpin_shared_mem(void *from, void *to);
 int refill_memcache(struct kvm_hyp_memcache *mc, unsigned long min_pages,
 		    struct kvm_hyp_memcache *host_mc);
+void reclaim_guest_pages(struct kvm_shadow_vm *vm, struct kvm_hyp_memcache *mc);
 
 static __always_inline void __load_host_stage2(void)
 {
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index afa707e1e31d8..68cdf5f50aea9 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -275,6 +275,60 @@ err:
 	return ret;
 }
 
+static int reclaim_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
+		enum kvm_pgtable_walk_flags flag,
+		void * const arg)
+{
+	kvm_pte_t pte = *ptep;
+	phys_addr_t phys;
+
+	if (!kvm_pte_valid(pte))
+		return 0;
+
+	/*
+	 * Only update the host stage-2 -- we're about to tear-down the guest
+	 * stage-2 so no need to waste effort trying to keep it in sync.
+	 */
+	phys = kvm_pte_to_phys(pte);
+	BUG_ON(host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_host_id));
+
+	/*
+	 * XXX: if protected guest mark the page 'dirty' instead, and zero it
+	 * lazily on host s2 aborts.
+	 */
+
+	return 0;
+}
+
+void reclaim_guest_pages(struct kvm_shadow_vm *vm, struct kvm_hyp_memcache *mc)
+{
+	struct kvm_pgtable_walker walker = {
+		.cb     = reclaim_walker,
+		.flags  = KVM_PGTABLE_WALK_LEAF
+	};
+	void *addr;
+
+	host_lock_component();
+	__guest_lock(vm);
+
+	/* Reclaim all guest pages, and dump all pgtable pages in the hyp_pool */
+	BUG_ON(kvm_pgtable_walk(&vm->pgt, 0, BIT(vm->pgt.ia_bits), &walker));
+	kvm_pgtable_stage2_destroy(&vm->pgt);
+	vm->arch.mmu.pgd_phys = 0ULL;
+
+	__guest_unlock(vm);
+	host_unlock_component();
+
+	/* Drain the hyp_pool into the memcache */
+	addr = hyp_alloc_pages(&vm->pool, 0);
+	while (addr) {
+		memset(hyp_virt_to_page(addr), 0, sizeof(struct hyp_page));
+		push_hyp_memcache(mc, addr, hyp_virt_to_phys);
+		WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(addr), 1));
+		addr = hyp_alloc_pages(&vm->pool, 0);
+	}
+}
+
 int __pkvm_prot_finalize(void)
 {
 	struct kvm_s2_mmu *mmu = &host_kvm.arch.mmu;
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index dc8fe0ccaa45e..53ec896f51381 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -605,6 +605,7 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 
 	shadow_size = vm->shadow_area_size;
 
+	reclaim_guest_pages(vm, &vm->host_kvm->arch.pkvm.teardown_mc);
 	unpin_host_vcpus(vm);
 	hyp_unpin_shared_mem(vm->host_kvm, vm->host_kvm + 1);
 	remove_shadow_table(shadow_handle);
-- 
GitLab


From 565d8db4a97750fa6e93a5cec1cd1889a30bdacb Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 21 Oct 2021 10:28:19 +0100
Subject: [PATCH 2681/4878] ANDROID: KVM: arm64: Add __pkvm_host_share_guest
 hypercall

Add a new hypercall for the nVHE protected mode allowing the host to
share one of its pages with a guest.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Ibfb86932e5da58c6b88448b49be6c1f994dbbd70
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h              |   1 +
 arch/arm64/include/asm/kvm_host.h             |   8 +-
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |   1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  28 +++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 107 ++++++++++++++++++
 5 files changed, 143 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 83cf597c95c70..2735c92f2b562 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -63,6 +63,7 @@ enum __kvm_host_smccc_func {
 	/* Hypercalls available after pKVM finalisation */
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_unshare_hyp,
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_guest,
 	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a0937a9a7902d..7b779271654d8 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -453,8 +453,12 @@ struct kvm_vcpu_arch {
 	/* Don't run the guest (internal implementation need) */
 	bool pause;
 
-	/* Cache some mmu pages needed inside spinlock regions */
-	struct kvm_mmu_memory_cache mmu_page_cache;
+	union {
+		/* Cache some mmu pages needed inside spinlock regions */
+		struct kvm_mmu_memory_cache mmu_page_cache;
+		/* Pages to be donated to pkvm/EL2e if it runs out */
+		struct kvm_hyp_memcache pkvm_memcache;
+	};
 
 	/* Target CPU and feature flags */
 	int target;
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 64b3c8d8a21d5..d1db0b29d27f8 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -60,6 +60,7 @@ int __pkvm_host_share_hyp(u64 pfn);
 int __pkvm_host_unshare_hyp(u64 pfn);
 int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
+int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 15edc7b990356..1d6d8a740d3e1 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -579,6 +579,33 @@ static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) =  ret;
 }
 
+static void handle___pkvm_host_share_guest(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(u64, pfn, host_ctxt, 1);
+	DECLARE_REG(u64, gfn, host_ctxt, 2);
+	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 3);
+	struct pkvm_loaded_state *state;
+	int ret = -EINVAL;
+	u64 nr_pages;
+
+	if (!is_protected_kvm_enabled())
+		goto out;
+
+	vcpu = kern_hyp_va(vcpu);
+	state = this_cpu_ptr(&loaded_state);
+	if (!state->vcpu || !state->is_shadow)
+		goto out;
+
+	/* Topup shadow memcache with the host's */
+	nr_pages = VTCR_EL2_LVLS(state->vcpu->arch.pkvm.shadow_vm->arch.vtcr) - 1;
+	ret = refill_memcache(&state->vcpu->arch.pkvm_memcache, nr_pages,
+			      &vcpu->arch.pkvm_memcache);
+	if (!ret)
+		ret = __pkvm_host_share_guest(pfn, gfn, state->vcpu);
+out:
+	cpu_reg(host_ctxt, 1) =  ret;
+}
+
 static void handle___kvm_adjust_pc(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
@@ -818,6 +845,7 @@ static const hcall_t host_hcall[] = {
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
 	HANDLE_FUNC(__pkvm_host_unshare_hyp),
+	HANDLE_FUNC(__pkvm_host_share_guest),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
 	HANDLE_FUNC(__kvm_flush_vm_context),
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 68cdf5f50aea9..ba30c9d0d9c5f 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -66,6 +66,16 @@ static void hyp_unlock_component(void)
 	hyp_spin_unlock(&pkvm_pgd_lock);
 }
 
+static void guest_lock_component(struct kvm_vcpu *vcpu)
+{
+	__guest_lock(vcpu->arch.pkvm.shadow_vm);
+}
+
+static void guest_unlock_component(struct kvm_vcpu *vcpu)
+{
+	__guest_unlock(vcpu->arch.pkvm.shadow_vm);
+}
+
 static void *host_s2_zalloc_pages_exact(size_t size)
 {
 	void *addr = hyp_alloc_pages(&host_s2_pool, get_order(size));
@@ -625,6 +635,7 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 enum pkvm_component_id {
 	PKVM_ID_HOST,
 	PKVM_ID_HYP,
+	PKVM_ID_GUEST,
 };
 
 struct pkvm_mem_transition {
@@ -648,6 +659,13 @@ struct pkvm_mem_transition {
 
 	struct {
 		enum pkvm_component_id	id;
+
+		union {
+			struct {
+				struct kvm_vcpu *vcpu;
+				phys_addr_t phys;
+			} guest;
+		};
 	} completer;
 };
 
@@ -918,6 +936,52 @@ static int hyp_complete_donation(u64 addr,
 	return pkvm_create_mappings_locked(start, end, prot);
 }
 
+static enum pkvm_page_state guest_get_page_state(kvm_pte_t pte)
+{
+	if (!kvm_pte_valid(pte))
+		return PKVM_NOPAGE;
+
+	return pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte));
+}
+
+static int __guest_check_page_state_range(struct kvm_vcpu *vcpu, u64 addr,
+					  u64 size, enum pkvm_page_state state)
+{
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	struct check_walk_data d = {
+		.desired	= state,
+		.get_page_state	= guest_get_page_state,
+	};
+
+	hyp_assert_lock_held(&vm->lock);
+	return check_page_state_range(&vm->pgt, addr, size, &d);
+}
+
+static int guest_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
+			   enum kvm_pgtable_prot perms)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	if (perms != KVM_PGTABLE_PROT_RWX)
+		return -EPERM;
+
+	return __guest_check_page_state_range(tx->completer.guest.vcpu, addr,
+					      size, PKVM_NOPAGE);
+}
+
+static int guest_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
+				enum kvm_pgtable_prot perms)
+{
+	struct kvm_vcpu *vcpu = tx->completer.guest.vcpu;
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	enum kvm_pgtable_prot prot;
+
+	prot = pkvm_mkstate(perms, PKVM_PAGE_SHARED_BORROWED);
+	return kvm_pgtable_stage2_map(&vm->pgt, addr, size, tx->completer.guest.phys,
+				      prot, &vcpu->arch.pkvm_memcache);
+}
+
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -939,6 +1003,9 @@ static int check_share(struct pkvm_mem_share *share)
 	case PKVM_ID_HYP:
 		ret = hyp_ack_share(completer_addr, tx, share->completer_prot);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_ack_share(completer_addr, tx, share->completer_prot);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -967,6 +1034,9 @@ static int __do_share(struct pkvm_mem_share *share)
 	case PKVM_ID_HYP:
 		ret = hyp_complete_share(completer_addr, tx, share->completer_prot);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_complete_share(completer_addr, tx, share->completer_prot);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1332,3 +1402,40 @@ void hyp_unpin_shared_mem(void *from, void *to)
 	hyp_unlock_component();
 	host_unlock_component();
 }
+
+int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 guest_addr = hyp_pfn_to_phys(gfn);
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = guest_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_GUEST,
+				.guest	= {
+					.vcpu = vcpu,
+					.phys = host_addr,
+				},
+			},
+		},
+		.completer_prot	= KVM_PGTABLE_PROT_RWX,
+	};
+
+	host_lock_component();
+	guest_lock_component(vcpu);
+
+	ret = do_share(&share);
+
+	guest_unlock_component(vcpu);
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From e86aeb3febeb809fbc2cfe9ac6a8dc3ae0331bcc Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 21 Oct 2021 11:38:46 +0100
Subject: [PATCH 2682/4878] ANDROID: KVM: arm64: Call __pkvm_host_share_guest
 on memory abort

Now that EL2 is ready to manage guest page-tables in protected mode, use
the recently introduced hypercall to share pages with guests from the
memory abort path, instead of manipulating their page-tables directly.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I05ed8283d0eed19b2cfd6314cfcafbe3f689937c
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h |  6 ++
 arch/arm64/kvm/arm.c              | 21 ++++++-
 arch/arm64/kvm/mmu.c              | 96 ++++++++++++++++++++++++++++++-
 3 files changed, 121 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 7b779271654d8..93dd0a11f76e8 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -156,10 +156,16 @@ struct kvm_s2_mmu {
 struct kvm_arch_memory_slot {
 };
 
+struct kvm_pinned_page {
+	struct list_head	link;
+	struct page		*page;
+};
+
 struct kvm_protected_vm {
 	bool enabled;
 	int shadow_handle;
 	struct kvm_hyp_memcache teardown_mc;
+	struct list_head pinned_pages;
 };
 
 struct kvm_arch {
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 5252deddde96e..144091443ff9e 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -164,6 +164,10 @@ vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 void free_hyp_memcache(struct kvm_hyp_memcache *mc);
 static void kvm_shadow_destroy(struct kvm *kvm)
 {
+	struct kvm_pinned_page *ppage, *tmp;
+	struct mm_struct *mm = current->mm;
+	struct list_head *ppages;
+
 	if (!kvm_vm_is_protected(kvm))
 		return;
 
@@ -171,6 +175,14 @@ static void kvm_shadow_destroy(struct kvm *kvm)
 		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
 
 	free_hyp_memcache(&kvm->arch.pkvm.teardown_mc);
+
+	ppages = &kvm->arch.pkvm.pinned_pages;
+	list_for_each_entry_safe(ppage, tmp, ppages, link) {
+		account_locked_vm(mm, 1, false);
+		unpin_user_pages_dirty_lock(&ppage->page, 1, true);
+		list_del(&ppage->link);
+		kfree(ppage);
+	}
 }
 
 /**
@@ -434,7 +446,10 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
 	if (vcpu_has_run_once(vcpu) && unlikely(!irqchip_in_kernel(vcpu->kvm)))
 		static_branch_dec(&userspace_irqchip_in_use);
 
-	kvm_mmu_free_memory_cache(&vcpu->arch.mmu_page_cache);
+	if (is_protected_kvm_enabled())
+		free_hyp_memcache(&vcpu->arch.pkvm_memcache);
+	else
+		kvm_mmu_free_memory_cache(&vcpu->arch.mmu_page_cache);
 	kvm_timer_vcpu_terminate(vcpu);
 	kvm_pmu_vcpu_destroy(vcpu);
 
@@ -475,6 +490,9 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	struct kvm_s2_mmu *mmu;
 	int *last_ran;
 
+	if (is_protected_kvm_enabled())
+		goto nommu;
+
 	mmu = vcpu->arch.hw_mmu;
 	last_ran = this_cpu_ptr(mmu->last_vcpu_ran);
 
@@ -492,6 +510,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 		*last_ran = vcpu->vcpu_id;
 	}
 
+nommu:
 	vcpu->cpu = cpu;
 
 	kvm_vgic_load(vcpu);
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 67f9788060a52..761a737844e41 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -654,6 +654,11 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long t
 	mmfr0 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
 	mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
 	kvm->arch.vtcr = kvm_get_vtcr(mmfr0, mmfr1, phys_shift);
+	INIT_LIST_HEAD(&kvm->arch.pkvm.pinned_pages);
+	mmu->arch = &kvm->arch;
+
+	if (is_protected_kvm_enabled())
+		return 0;
 
 	if (mmu->pgt != NULL) {
 		kvm_err("kvm_arch already initialized?\n");
@@ -763,6 +768,9 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
 	struct kvm *kvm = kvm_s2_mmu_to_kvm(mmu);
 	struct kvm_pgtable *pgt = NULL;
 
+	if (is_protected_kvm_enabled())
+		return;
+
 	spin_lock(&kvm->mmu_lock);
 	pgt = mmu->pgt;
 	if (pgt) {
@@ -1117,6 +1125,88 @@ static int sanitise_mte_tags(struct kvm *kvm, kvm_pfn_t pfn,
 	return 0;
 }
 
+static int pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_hvc(KVM_HOST_SMCCC_FUNC(__pkvm_host_share_guest),
+			  pfn, gfn, vcpu, &res);
+	WARN_ON(res.a0 != SMCCC_RET_SUCCESS);
+
+	/*
+	 * Getting -EPERM at this point implies that the pfn has already been
+	 * shared. This should only ever happen when two vCPUs faulted on the
+	 * same page, and the current one lost the race to do the donation.
+	 */
+	return (res.a1 == -EPERM) ? -EAGAIN : res.a1;
+}
+
+static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
+			  unsigned long hva)
+{
+	struct kvm_hyp_memcache *hyp_memcache = &vcpu->arch.pkvm_memcache;
+	struct mm_struct *mm = current->mm;
+	unsigned int flags = FOLL_FORCE |
+			     FOLL_HWPOISON |
+			     FOLL_LONGTERM |
+			     FOLL_WRITE;
+	struct kvm_pinned_page *ppage;
+	struct kvm *kvm = vcpu->kvm;
+	struct page *page;
+	u64 pfn;
+	int ret;
+
+	ret = topup_hyp_memcache(hyp_memcache, kvm_mmu_cache_min_pages(kvm));
+	if (ret)
+		return -ENOMEM;
+
+	ppage = kmalloc(sizeof(*ppage), GFP_KERNEL_ACCOUNT);
+	if (!ppage)
+		return -ENOMEM;
+
+	ret = account_locked_vm(mm, 1, true);
+	if (ret)
+		goto free_ppage;
+
+	mmap_read_lock(mm);
+	ret = pin_user_pages(hva, 1, flags, &page, NULL);
+	mmap_read_unlock(mm);
+
+	if (ret == -EHWPOISON) {
+		kvm_send_hwpoison_signal(hva, PAGE_SHIFT);
+		ret = 0;
+		goto dec_account;
+	} else if (ret != 1) {
+		ret = -EFAULT;
+		goto dec_account;
+	}
+
+	pfn = page_to_pfn(page);
+	ret = pkvm_host_share_guest(pfn, fault_ipa >> PAGE_SHIFT, vcpu);
+	if (ret) {
+		if (ret == -EAGAIN)
+			ret = 0;
+		goto unpin;
+	}
+
+	ppage->page = page;
+	INIT_LIST_HEAD(&ppage->link);
+	spin_lock(&kvm->mmu_lock);
+	list_add(&ppage->link, &kvm->arch.pkvm.pinned_pages);
+	spin_unlock(&kvm->mmu_lock);
+
+	return 0;
+
+unpin:
+	unpin_user_pages(&page, 1);
+dec_account:
+	account_locked_vm(mm, 1, false);
+free_ppage:
+	kfree(ppage);
+
+	return ret;
+}
+
 static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 			  struct kvm_memory_slot *memslot, unsigned long hva,
 			  unsigned long fault_status)
@@ -1461,7 +1551,11 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu)
 		goto out_unlock;
 	}
 
-	ret = user_mem_abort(vcpu, fault_ipa, memslot, hva, fault_status);
+
+	if (is_protected_kvm_enabled())
+		ret = pkvm_mem_abort(vcpu, fault_ipa, hva);
+	else
+		ret = user_mem_abort(vcpu, fault_ipa, memslot, hva, fault_status);
 	if (ret == 0)
 		ret = 1;
 out:
-- 
GitLab


From 94391c57a5cd4d26af14505dda4917622a02ec31 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 3 Nov 2021 16:07:06 +0000
Subject: [PATCH 2683/4878] ANDROID: KVM: arm64: Reclaim vm state pages in
 teardown memcache

Push the memory pages used to store VM metadata in the teardown memcache
to let the host know they can be reclaimed.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: Ie3b21c54093509a0cc04141bf4fc2d5feb126668
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 53ec896f51381..465283b9e29a5 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -588,11 +588,14 @@ err:
 
 int __pkvm_teardown_shadow(struct kvm *kvm)
 {
+	struct kvm_hyp_memcache *mc;
 	struct kvm_shadow_vm *vm;
+	struct kvm *host_kvm;
 	size_t shadow_size;
 	int shadow_handle;
 	u64 pfn;
 	u64 nr_pages;
+	void *addr;
 
 	kvm = kern_hyp_va(kvm);
 
@@ -605,13 +608,18 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 
 	shadow_size = vm->shadow_area_size;
 
-	reclaim_guest_pages(vm, &vm->host_kvm->arch.pkvm.teardown_mc);
-	unpin_host_vcpus(vm);
-	hyp_unpin_shared_mem(vm->host_kvm, vm->host_kvm + 1);
+	/* Reclaim guest pages, and page-table pages */
+	mc = &vm->host_kvm->arch.pkvm.teardown_mc;
+	reclaim_guest_pages(vm, mc);
 	remove_shadow_table(shadow_handle);
+	unpin_host_vcpus(vm);
 
-	/* Clear the shadow memory since hyp is releasing it back to host. */
+	/* Push the metadata pages to the teardown memcache */
+	host_kvm = vm->host_kvm;
 	memset(vm, 0, shadow_size);
+	for (addr = vm; addr < ((void *)vm + shadow_size); addr += PAGE_SIZE)
+		push_hyp_memcache(mc, addr, hyp_virt_to_phys);
+	hyp_unpin_shared_mem(host_kvm, host_kvm + 1);
 
 	pfn = hyp_phys_to_pfn(__hyp_pa(vm));
 	nr_pages = shadow_size >> PAGE_SHIFT;
-- 
GitLab


From ecf2308ee8de31d74bb3d59b5e5d2e66615d1141 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Mon, 8 Nov 2021 17:27:41 +0000
Subject: [PATCH 2684/4878] ANDROID: KVM: arm64: Avoid switching to guest
 context if guest is already loaded

Typically, TLB invalidation of guest stage-2 mappings using nVHE is
performed by a hypercall originating from the host. For the invalidation
instruction to be effective, therefore, __tlb_switch_to_{guest,host}()
swizzle the active stage-2 context around the TLBI instruction.

With guest-to-host memory sharing hypercalls originating from the guest
under pKVM, there is no need to change the context when invalidating the
TLB and restoring the host context is, in fact, harmful.

Check the currently running vCPU in __tlb_switch_to_{guest,host}() and
avoid switching the context if a vCPU is already loaded.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I4cfb36f0f88a2d50d50ea85a0d84e3e8191152a3
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/tlb.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/tlb.c b/arch/arm64/kvm/hyp/nvhe/tlb.c
index d296d617f5896..82f8a51955052 100644
--- a/arch/arm64/kvm/hyp/nvhe/tlb.c
+++ b/arch/arm64/kvm/hyp/nvhe/tlb.c
@@ -17,6 +17,17 @@ struct tlb_inv_context {
 static void __tlb_switch_to_guest(struct kvm_s2_mmu *mmu,
 				  struct tlb_inv_context *cxt)
 {
+	struct kvm_cpu_context *host_ctxt;
+	struct kvm_vcpu *vcpu;
+
+	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;
+	vcpu = host_ctxt->__hyp_running_vcpu;
+
+	if (vcpu) {
+		WARN_ON(vcpu->arch.hw_mmu->vmid.vmid != mmu->vmid.vmid);
+		return;
+	}
+
 	if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT)) {
 		u64 val;
 
@@ -45,6 +56,12 @@ static void __tlb_switch_to_guest(struct kvm_s2_mmu *mmu,
 
 static void __tlb_switch_to_host(struct tlb_inv_context *cxt)
 {
+	struct kvm_cpu_context *host_ctxt;
+
+	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;
+	if (host_ctxt->__hyp_running_vcpu)
+		return;
+
 	__load_host_stage2();
 
 	if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT)) {
-- 
GitLab


From d9c8760aaf0a0300cf1aeb23cab56c50c9f101dc Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 21 Jun 2021 16:51:02 +0100
Subject: [PATCH 2685/4878] ANDROID: BACKPORT: KVM: arm64: Turn
 kvm_pgtable_stage2_set_owner into kvm_pgtable_stage2_annotate

kvm_pgtable_stage2_set_owner() could be generalised into a way
to store up to 63 bits in the page tables, as long as we don't
set bit 0.

Let's just do that.

Signed-off-by: Marc Zyngier <maz@kernel.org>
[willdeacon@: Fix S2MPU conflict in host_stage2_set_owner_locked()]
Bug: 209580772
Change-Id: I4e42d149b457870c35a5ae0f77e14c95dee16b4d
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pgtable.h  | 12 +++++++-----
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 18 +++++++++++-------
 arch/arm64/kvm/hyp/pgtable.c          | 20 ++++++--------------
 3 files changed, 24 insertions(+), 26 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index 2d6b5058f7d30..190df60f3aaa4 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -357,14 +357,16 @@ int kvm_pgtable_stage2_map(struct kvm_pgtable *pgt, u64 addr, u64 size,
 			   void *mc);
 
 /**
- * kvm_pgtable_stage2_set_owner() - Unmap and annotate pages in the IPA space to
- *				    track ownership.
+ * kvm_pgtable_stage2_annotate() - Unmap and annotate pages in the IPA space
+ *				   to track ownership (and more).
  * @pgt:	Page-table structure initialised by kvm_pgtable_stage2_init*().
  * @addr:	Base intermediate physical address to annotate.
  * @size:	Size of the annotated range.
  * @mc:		Cache of pre-allocated and zeroed memory from which to allocate
  *		page-table pages.
- * @owner_id:	Unique identifier for the owner of the page.
+ * @annotation:	A 63 bit value that will be stored in the page tables.
+ *		@annotation[0] must be 0, and @annotation[63:1] is stored
+ *		in the page tables.
  *
  * By default, all page-tables are owned by identifier 0. This function can be
  * used to mark portions of the IPA space as owned by other entities. When a
@@ -373,8 +375,8 @@ int kvm_pgtable_stage2_map(struct kvm_pgtable *pgt, u64 addr, u64 size,
  *
  * Return: 0 on success, negative error code on failure.
  */
-int kvm_pgtable_stage2_set_owner(struct kvm_pgtable *pgt, u64 addr, u64 size,
-				 void *mc, u8 owner_id);
+int kvm_pgtable_stage2_annotate(struct kvm_pgtable *pgt, u64 addr, u64 size,
+				void *mc, kvm_pte_t annotation);
 
 /**
  * kvm_pgtable_stage2_unmap() - Remove a mapping from a guest stage-2 page-table.
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index ba30c9d0d9c5f..3d3b1e96f9b07 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -510,19 +510,23 @@ static int host_stage2_adjust_range(u64 addr, struct kvm_mem_range *range)
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size,
 			     enum kvm_pgtable_prot prot)
 {
-	hyp_assert_lock_held(&host_kvm.lock);
-
 	return host_stage2_try(__host_stage2_idmap, addr, addr + size, prot);
 }
 
-int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id)
+#define KVM_INVALID_PTE_OWNER_MASK	GENMASK(9, 2)
+static kvm_pte_t kvm_init_invalid_leaf_owner(u8 owner_id)
 {
-	int ret;
+	return FIELD_PREP(KVM_INVALID_PTE_OWNER_MASK, owner_id);
+}
 
-	hyp_assert_lock_held(&host_kvm.lock);
+int host_stage2_set_owner_locked(phys_addr_t addr, u64 size,
+				 u8 owner_id)
+{
+	kvm_pte_t annotation = kvm_init_invalid_leaf_owner(owner_id);
+	int ret;
 
-	ret = host_stage2_try(kvm_pgtable_stage2_set_owner, &host_kvm.pgt,
-			      addr, size, &host_s2_pool, owner_id);
+	ret = host_stage2_try(kvm_pgtable_stage2_annotate, &host_kvm.pgt,
+			      addr, size, &host_s2_pool, annotation);
 
 	if (!ret && kvm_iommu_ops.host_stage2_set_owner)
 		kvm_iommu_ops.host_stage2_set_owner(addr, size, owner_id);
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index c8a5c9cb20ef1..9d2cf32c8b552 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -46,9 +46,6 @@
 					 KVM_PTE_LEAF_ATTR_LO_S2_S2AP_W | \
 					 KVM_PTE_LEAF_ATTR_HI_S2_XN)
 
-#define KVM_INVALID_PTE_OWNER_MASK	GENMASK(9, 2)
-#define KVM_MAX_OWNER_ID		1
-
 struct kvm_pgtable_walk_data {
 	struct kvm_pgtable		*pgt;
 	struct kvm_pgtable_walker	*walker;
@@ -167,11 +164,6 @@ static kvm_pte_t kvm_init_valid_leaf_pte(u64 pa, kvm_pte_t attr, u32 level)
 	return pte;
 }
 
-static kvm_pte_t kvm_init_invalid_leaf_owner(u8 owner_id)
-{
-	return FIELD_PREP(KVM_INVALID_PTE_OWNER_MASK, owner_id);
-}
-
 static int kvm_pgtable_visitor_cb(struct kvm_pgtable_walk_data *data, u64 addr,
 				  u32 level, kvm_pte_t *ptep,
 				  enum kvm_pgtable_walk_flags flag)
@@ -565,7 +557,7 @@ void kvm_pgtable_hyp_destroy(struct kvm_pgtable *pgt)
 struct stage2_map_data {
 	u64				phys;
 	kvm_pte_t			attr;
-	u8				owner_id;
+	u64				annotation;
 
 	kvm_pte_t			*anchor;
 	kvm_pte_t			*childp;
@@ -732,7 +724,7 @@ static int stage2_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 	if (kvm_phys_is_valid(phys))
 		new = kvm_init_valid_leaf_pte(phys, data->attr, level);
 	else
-		new = kvm_init_invalid_leaf_owner(data->owner_id);
+		new = data->annotation;
 
 	if (stage2_pte_is_counted(old)) {
 		/*
@@ -931,8 +923,8 @@ int kvm_pgtable_stage2_map(struct kvm_pgtable *pgt, u64 addr, u64 size,
 	return ret;
 }
 
-int kvm_pgtable_stage2_set_owner(struct kvm_pgtable *pgt, u64 addr, u64 size,
-				 void *mc, u8 owner_id)
+int kvm_pgtable_stage2_annotate(struct kvm_pgtable *pgt, u64 addr, u64 size,
+				void *mc, kvm_pte_t annotation)
 {
 	int ret;
 	struct stage2_map_data map_data = {
@@ -940,8 +932,8 @@ int kvm_pgtable_stage2_set_owner(struct kvm_pgtable *pgt, u64 addr, u64 size,
 		.mmu		= pgt->mmu,
 		.memcache	= mc,
 		.mm_ops		= pgt->mm_ops,
-		.owner_id	= owner_id,
 		.force_pte	= true,
+		.annotation	= annotation,
 	};
 	struct kvm_pgtable_walker walker = {
 		.cb		= stage2_map_walker,
@@ -951,7 +943,7 @@ int kvm_pgtable_stage2_set_owner(struct kvm_pgtable *pgt, u64 addr, u64 size,
 		.arg		= &map_data,
 	};
 
-	if (owner_id > KVM_MAX_OWNER_ID)
+	if (annotation & PTE_VALID)
 		return -EINVAL;
 
 	ret = kvm_pgtable_walk(pgt, addr, size, &walker);
-- 
GitLab


From 1edca0105976755520641b78ae1efe94d812ca97 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 10:06:36 +0100
Subject: [PATCH 2686/4878] ANDROID: BACKPORT: KVM: arm64: Make owner ids 32
 bits wide

We will soon need more than 8 bits to encode all possible owner ids in
KVM protected mode. To prepare the ground for this, introduce a new type
for owner_ids, and make it a 32bits wide.

Signed-off-by: Quentin Perret <qperret@google.com>
[willdeacon@: Move IDs to header and fix S2MPU host_stage2_set_owner() callback]
Bug: 209580772
Change-Id: I37add42a2d7f34aa110c00fd9569d81db279d765
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_hyp.h              | 14 -----------
 arch/arm64/kvm/hyp/include/nvhe/iommu.h       | 24 +++++++++++++++++++
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  7 ++++--
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  1 +
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c         |  8 +++++--
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 16 ++++++-------
 arch/arm64/kvm/hyp/nvhe/setup.c               |  1 +
 7 files changed, 44 insertions(+), 27 deletions(-)
 create mode 100644 arch/arm64/kvm/hyp/include/nvhe/iommu.h

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 328ce108d0f14..1ac15eb60f8ee 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -123,18 +123,4 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 
-struct kvm_iommu_ops {
-	int (*init)(void);
-	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
-	bool (*host_mmio_dabt_handler)(struct kvm_cpu_context *host_ctxt,
-				       phys_addr_t fault_pa, unsigned int len,
-				       bool is_write, int rd);
-	void (*host_stage2_set_owner)(phys_addr_t addr, size_t size, u8 owner_id);
-	int (*host_stage2_adjust_mmio_range)(phys_addr_t addr, phys_addr_t *start,
-					     phys_addr_t *end);
-};
-
-extern struct kvm_iommu_ops kvm_iommu_ops;
-extern const struct kvm_iommu_ops kvm_s2mpu_ops;
-
 #endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
new file mode 100644
index 0000000000000..78f88dbc88562
--- /dev/null
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ARM64_KVM_NVHE_IOMMU_H__
+#define __ARM64_KVM_NVHE_IOMMU_H__
+
+#include <linux/types.h>
+#include <asm/kvm_host.h>
+
+#include <nvhe/mem_protect.h>
+
+struct kvm_iommu_ops {
+	int (*init)(void);
+	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
+	bool (*host_mmio_dabt_handler)(struct kvm_cpu_context *host_ctxt,
+				       phys_addr_t fault_pa, unsigned int len,
+				       bool is_write, int rd);
+	void (*host_stage2_set_owner)(phys_addr_t addr, size_t size, pkvm_id owner_id);
+	int (*host_stage2_adjust_mmio_range)(phys_addr_t addr, phys_addr_t *start,
+					     phys_addr_t *end);
+};
+
+extern struct kvm_iommu_ops kvm_iommu_ops;
+extern const struct kvm_iommu_ops kvm_s2mpu_ops;
+
+#endif	/* __ARM64_KVM_NVHE_IOMMU_H__ */
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index d1db0b29d27f8..fa83c2fa7b9d8 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -51,7 +51,10 @@ struct host_kvm {
 };
 extern struct host_kvm host_kvm;
 
-extern const u8 pkvm_hyp_id;
+typedef u32 pkvm_id;
+static const pkvm_id pkvm_host_id	= 0;
+static const pkvm_id pkvm_hyp_id	= 1;
+static const pkvm_id pkvm_guest_id	= 2;
 
 extern unsigned long hyp_nr_cpus;
 
@@ -64,7 +67,7 @@ int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
-int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id);
+int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, pkvm_id owner_id);
 int kvm_host_prepare_stage2(void *pgt_pool_base);
 int kvm_guest_prepare_stage2(struct kvm_shadow_vm *vm, void *pgd);
 void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 1d6d8a740d3e1..8e43c96470deb 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -15,6 +15,7 @@
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 
+#include <nvhe/iommu.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
 #include <nvhe/pkvm.h>
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index ab4d8aefcb3cf..ad5716cd51ee3 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -13,6 +13,7 @@
 
 #include <linux/arm-smccc.h>
 
+#include <nvhe/iommu.h>
 #include <nvhe/memory.h>
 #include <nvhe/mm.h>
 #include <nvhe/spinlock.h>
@@ -254,10 +255,13 @@ static void set_mpt_range_locked(struct mpt *mpt, phys_addr_t first_byte,
 		__range_invalidation(dev, first_byte, last_byte);
 }
 
-static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size, u8 owner_id)
+static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size,
+					pkvm_id owner_id)
 {
+	enum mpt_prot prot;
+
 	/* Grant access only to the default owner of the page table (ID=0). */
-	enum mpt_prot prot = owner_id ? MPT_PROT_NONE : MPT_PROT_RW;
+	prot = owner_id == pkvm_host_id ? MPT_PROT_RW : MPT_PROT_NONE;
 
 	/*
 	 * NOTE: The following code refers to 'end' as the exclusive upper
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 3d3b1e96f9b07..062258f91fa3a 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -16,6 +16,7 @@
 #include <hyp/fault.h>
 
 #include <nvhe/gfp.h>
+#include <nvhe/iommu.h>
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
@@ -28,9 +29,6 @@ struct host_kvm host_kvm;
 
 static struct hyp_pool host_s2_pool;
 
-const u8 pkvm_host_id = 0;
-const u8 pkvm_hyp_id = 1;
-
 static DEFINE_PER_CPU(struct kvm_shadow_vm *, __current_vm);
 #define current_vm (*this_cpu_ptr(&__current_vm))
 
@@ -513,14 +511,14 @@ int host_stage2_idmap_locked(phys_addr_t addr, u64 size,
 	return host_stage2_try(__host_stage2_idmap, addr, addr + size, prot);
 }
 
-#define KVM_INVALID_PTE_OWNER_MASK	GENMASK(9, 2)
-static kvm_pte_t kvm_init_invalid_leaf_owner(u8 owner_id)
+#define KVM_INVALID_PTE_OWNER_MASK	GENMASK(32, 1)
+static kvm_pte_t kvm_init_invalid_leaf_owner(pkvm_id owner_id)
 {
 	return FIELD_PREP(KVM_INVALID_PTE_OWNER_MASK, owner_id);
 }
 
 int host_stage2_set_owner_locked(phys_addr_t addr, u64 size,
-				 u8 owner_id)
+				 pkvm_id owner_id)
 {
 	kvm_pte_t annotation = kvm_init_invalid_leaf_owner(owner_id);
 	int ret;
@@ -682,7 +680,7 @@ struct pkvm_mem_donation {
 	const struct pkvm_mem_transition	tx;
 };
 
-static u8 completer_owner_id(const struct pkvm_mem_transition *tx)
+static pkvm_id completer_owner_id(const struct pkvm_mem_transition *tx)
 {
 	switch (tx->completer.id) {
 	case PKVM_ID_HOST:
@@ -797,7 +795,7 @@ static int host_initiate_unshare(u64 *completer_addr,
 static int host_initiate_donation(u64 *completer_addr,
 				  const struct pkvm_mem_transition *tx)
 {
-	u8 owner_id = completer_owner_id(tx);
+	pkvm_id owner_id = completer_owner_id(tx);
 	u64 size = tx->nr_pages * PAGE_SIZE;
 
 	*completer_addr = tx->initiator.host.completer_addr;
@@ -823,7 +821,7 @@ static int host_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
 static int host_complete_donation(u64 addr, const struct pkvm_mem_transition *tx)
 {
 	u64 size = tx->nr_pages * PAGE_SIZE;
-	u8 host_id = completer_owner_id(tx);
+	pkvm_id host_id = completer_owner_id(tx);
 
 	return host_stage2_set_owner_locked(addr, size, host_id);
 }
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 5c8d45d31bf21..3e5099074dae7 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -12,6 +12,7 @@
 
 #include <nvhe/early_alloc.h>
 #include <nvhe/gfp.h>
+#include <nvhe/iommu.h>
 #include <nvhe/memory.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
-- 
GitLab


From 6dbd44ccf4c908f85cc4811d9a3c6e5b9f05cea0 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 12:07:14 +0100
Subject: [PATCH 2687/4878] ANDROID: BACKPORT: KVM: arm64: Use guest VMID as
 owner id

We currently track page-ownership in nVHE protected mode with a rather
coarse granularity -- all guests share a unique owner id. But a finer
grain tracking will be useful soon, to e.g. handle host stage-2 faults
caused by an access to guest memory. To prepare the ground for this,
let's use the guest VMIDs as owner ids, hence allowing to distinguish
between all of them. This only works since the pKVM EL2 hypervisor
guarantees the stability of the VMIDs for the entire lifetime of a guest
VM. This will need some rework when/if we attempt to run more than 255
guests concurrently in protected mode as we'll have to handle VMID
rollovers, but there is no clear need for now, so let's keep it simple
to start.

Signed-off-by: Quentin Perret <qperret@google.com>
[willdeacon@: Update constants in mem_protect.h]
Bug: 209580772
Change-Id: I5c5c8061617d7dc481ae5e25a0391b306aabbd8c
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 3 +--
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 8 ++++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index fa83c2fa7b9d8..e6f93ac38b6a4 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -53,8 +53,7 @@ extern struct host_kvm host_kvm;
 
 typedef u32 pkvm_id;
 static const pkvm_id pkvm_host_id	= 0;
-static const pkvm_id pkvm_hyp_id	= 1;
-static const pkvm_id pkvm_guest_id	= 2;
+static const pkvm_id pkvm_hyp_id	= (1 << 16);
 
 extern unsigned long hyp_nr_cpus;
 
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 062258f91fa3a..da75c35ef4e85 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -29,6 +29,12 @@ struct host_kvm host_kvm;
 
 static struct hyp_pool host_s2_pool;
 
+static pkvm_id pkvm_guest_id(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.hw_mmu->vmid.vmid;
+
+}
+
 static DEFINE_PER_CPU(struct kvm_shadow_vm *, __current_vm);
 #define current_vm (*this_cpu_ptr(&__current_vm))
 
@@ -687,6 +693,8 @@ static pkvm_id completer_owner_id(const struct pkvm_mem_transition *tx)
 		return pkvm_host_id;
 	case PKVM_ID_HYP:
 		return pkvm_hyp_id;
+	case PKVM_ID_GUEST:
+		return pkvm_guest_id(tx->completer.guest.vcpu);
 	default:
 		WARN_ON(1);
 		return -1;
-- 
GitLab


From 9c864eab574c6ea7999dff02e1334d543bddb7ba Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 18:55:18 +0100
Subject: [PATCH 2688/4878] ANDROID: KVM: arm64: Refcount shadow structs on
 vcpu_{load/put}()

Nothing currently prevents the host from tearing down a shadow VM while
a vCPU is loaded, which is likely to corrupt the hypervisor state. To
prevent this, refcount the shadow vm structs on vcpu_load() and
vcpu_put() and make sure to only allow tearing down a shadow VM when
it's refcount is 0.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 209580772
Change-Id: I2860c3297516f8af6ff4a0d4c91127af4a34b62e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |  3 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c     |  6 ++-
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 53 +++++++++++++++++---------
 3 files changed, 42 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index c1c0d79cbac5b..30922f99e2f8a 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -53,7 +53,8 @@ extern struct kvm_shadow_vm **shadow_table;
 
 int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size, void *pgd);
 int __pkvm_teardown_shadow(struct kvm *kvm);
-struct kvm_vcpu *hyp_get_shadow_vcpu(const struct kvm_vcpu *host_vcpu);
+struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx);
+void put_shadow_vcpu(struct kvm_vcpu *vcpu);
 
 u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
 bool kvm_handle_pvm_sysreg(struct kvm_vcpu *vcpu, u64 *exit_code);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 8e43c96470deb..59f289f708f4f 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -501,6 +501,7 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
 	struct pkvm_loaded_state *state;
+	int handle;
 
 	/* Why did you bother? */
 	if (!is_protected_kvm_enabled())
@@ -514,7 +515,8 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 
 	vcpu = kern_hyp_va(vcpu);
 
-	state->vcpu = hyp_get_shadow_vcpu(vcpu) ?: vcpu;
+	handle = vcpu->arch.pkvm.shadow_handle;
+	state->vcpu = get_shadow_vcpu(handle, vcpu->vcpu_idx) ?: vcpu;
 	state->is_shadow = state->vcpu != vcpu;
 
 	if (state->is_shadow) {
@@ -540,6 +542,8 @@ static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 			if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED)
 				fpsimd_host_restore();
 
+			put_shadow_vcpu(state->vcpu);
+
 			/* "It's over and done with..." */
 			state->vcpu = NULL;
 		}
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 465283b9e29a5..c77baf1c83474 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -254,27 +254,30 @@ static struct kvm_shadow_vm *find_shadow_by_handle(int shadow_handle)
 	return shadow_table[shadow_index];
 }
 
-/*
- * Returns the hyp shadow vcpu for the corresponding host vcpu,
- * or NULL if it fails.
- */
-struct kvm_vcpu *hyp_get_shadow_vcpu(const struct kvm_vcpu *vcpu)
+struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx)
 {
-	struct shadow_vcpu_state *shadow_vcpu_state;
+	struct kvm_vcpu *vcpu = NULL;
 	struct kvm_shadow_vm *vm;
-	int vcpu_idx;
-	int shadow_handle;
 
-	shadow_handle = vcpu->arch.pkvm.shadow_handle;
+	hyp_spin_lock(&shadow_lock);
 	vm = find_shadow_by_handle(shadow_handle);
-	vcpu_idx = vcpu->vcpu_idx;
+	if (!vm || vcpu_idx < 0 || vm->created_vcpus <= vcpu_idx)
+		goto unlock;
+	vcpu = &vm->shadow_vcpus[vcpu_idx].vcpu;
+	hyp_page_ref_inc(hyp_virt_to_page(vm));
+unlock:
+	hyp_spin_unlock(&shadow_lock);
 
-	if (unlikely(!vm || vcpu_idx < 0 || vcpu_idx >= vm->created_vcpus))
-		return NULL;
+	return vcpu;
+}
 
-	shadow_vcpu_state = &vm->shadow_vcpus[vcpu_idx];
+void put_shadow_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
 
-	return &shadow_vcpu_state->vcpu;
+	hyp_spin_lock(&shadow_lock);
+	hyp_page_ref_dec(hyp_virt_to_page(vm));
+	hyp_spin_unlock(&shadow_lock);
 }
 
 /* Check and copy the supported features for the vcpu from the host. */
@@ -592,7 +595,7 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 	struct kvm_shadow_vm *vm;
 	struct kvm *host_kvm;
 	size_t shadow_size;
-	int shadow_handle;
+	int err, shadow_handle;
 	u64 pfn;
 	u64 nr_pages;
 	void *addr;
@@ -602,11 +605,20 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 	shadow_handle = kvm->arch.pkvm.shadow_handle;
 
 	/* Lookup then remove entry from the shadow table. */
+	hyp_spin_lock(&shadow_lock);
 	vm = find_shadow_by_handle(shadow_handle);
-	if (!vm)
-		return -ENOENT;
+	if (!vm) {
+		err = -ENOENT;
+		goto err_unlock;
+	}
 
-	shadow_size = vm->shadow_area_size;
+	if (WARN_ON(hyp_page_count(vm))) {
+		err = -EBUSY;
+		goto err_unlock;
+	}
+
+	__remove_shadow_table(shadow_handle);
+	hyp_spin_unlock(&shadow_lock);
 
 	/* Reclaim guest pages, and page-table pages */
 	mc = &vm->host_kvm->arch.pkvm.teardown_mc;
@@ -615,6 +627,7 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 	unpin_host_vcpus(vm);
 
 	/* Push the metadata pages to the teardown memcache */
+	shadow_size = vm->shadow_area_size;
 	host_kvm = vm->host_kvm;
 	memset(vm, 0, shadow_size);
 	for (addr = vm; addr < ((void *)vm + shadow_size); addr += PAGE_SIZE)
@@ -625,6 +638,10 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 	nr_pages = shadow_size >> PAGE_SHIFT;
 	WARN_ON(__pkvm_hyp_donate_host(pfn, nr_pages));
 	return 0;
+
+err_unlock:
+	hyp_spin_unlock(&shadow_lock);
+	return err;
 }
 
 /*
-- 
GitLab


From 119a6793190b413dea4c402331d8fde3042f4684 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 7 Dec 2021 15:47:01 +0000
Subject: [PATCH 2689/4878] ANDROID: KVM: arm64: Reject concurrent loading of a
 vCPU on multiple physical CPUs

Loading a vCPU concurrently on multiple physical CPUs is a recipe for
disaster. Introduce a per-vCPU flag to track whether or not it is loaded
and reject a load request for a vCPU which is already loaded.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Change-Id: Ic72db8a0462c23a3dc2af06bf0265b586729f989
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h | 3 +++
 arch/arm64/kvm/hyp/nvhe/pkvm.c    | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 93dd0a11f76e8..b1ef14d8c57e4 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -228,6 +228,9 @@ struct kvm_protected_vcpu {
 	 * PSCI_0_2_AFFINITY_LEVEL_PENDING
 	 */
 	int power_state;
+
+	/* True if this vcpu is currently loaded on a cpu. */
+	bool loaded_on_cpu;
 };
 
 struct kvm_vcpu_fault_info {
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index c77baf1c83474..dd4ad41dc5cc0 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -264,6 +264,14 @@ struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx)
 	if (!vm || vcpu_idx < 0 || vm->created_vcpus <= vcpu_idx)
 		goto unlock;
 	vcpu = &vm->shadow_vcpus[vcpu_idx].vcpu;
+
+	/* Ensure vcpu isn't loaded on more than one cpu simultaneously. */
+	if (unlikely(vcpu->arch.pkvm.loaded_on_cpu)) {
+		vcpu = NULL;
+		goto unlock;
+	}
+	vcpu->arch.pkvm.loaded_on_cpu = true;
+
 	hyp_page_ref_inc(hyp_virt_to_page(vm));
 unlock:
 	hyp_spin_unlock(&shadow_lock);
@@ -276,6 +284,7 @@ void put_shadow_vcpu(struct kvm_vcpu *vcpu)
 	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
 
 	hyp_spin_lock(&shadow_lock);
+	vcpu->arch.pkvm.loaded_on_cpu = false;
 	hyp_page_ref_dec(hyp_virt_to_page(vm));
 	hyp_spin_unlock(&shadow_lock);
 }
-- 
GitLab


From e853c3b1726fe561617db754188d8354fba1350a Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 25 Nov 2021 11:37:55 +0000
Subject: [PATCH 2690/4878] ANDROID: BACKPORT: KVM: arm64: Add initial support
 for KVM_CAP_EXIT_HYPERCALL

Allow the VMM to hook into and handle a subset of guest hypercalls
advertised by the host. For now, no such hypercalls exist, and so the
new capability returns 0 when queried.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I684d5cd07864887377e91cc96041916d671b2b16
[willdeacon@: Leave other unsupported CAPs commented in uapi/linux/kvm.h]
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h |  2 ++
 arch/arm64/kvm/arm.c              | 25 +++++++++++++++++++++++++
 arch/arm64/kvm/hypercalls.c       | 18 ++++++++++++++++++
 include/uapi/linux/kvm.h          |  2 ++
 4 files changed, 47 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index b1ef14d8c57e4..1499c2d54a87a 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -205,6 +205,8 @@ struct kvm_arch {
 	bool mte_enabled;
 
 	struct kvm_protected_vm pkvm;
+
+	u64 hypercall_exit_enabled;
 };
 
 struct kvm_protected_vcpu {
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 144091443ff9e..0246e05fde9ab 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -63,6 +63,9 @@ static bool vgic_present;
 static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
 DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
 
+/* KVM "vendor" hypercalls which may be forwarded to userspace on request. */
+#define KVM_EXIT_HYPERCALL_VALID_MASK	(0)
+
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
 {
 	return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
@@ -101,6 +104,19 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 		}
 		mutex_unlock(&kvm->lock);
 		break;
+	case KVM_CAP_EXIT_HYPERCALL:
+		if (cap->flags)
+			return -EINVAL;
+
+		if (cap->args[0] & ~KVM_EXIT_HYPERCALL_VALID_MASK)
+			return -EINVAL;
+
+		if (cap->args[1] || cap->args[2] || cap->args[3])
+			return -EINVAL;
+
+		WRITE_ONCE(kvm->arch.hypercall_exit_enabled, cap->args[0]);
+		r = 0;
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -301,6 +317,9 @@ static int kvm_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_ARM_PTRAUTH_GENERIC:
 		r = system_has_full_ptr_auth();
 		break;
+	case KVM_CAP_EXIT_HYPERCALL:
+		r = KVM_EXIT_HYPERCALL_VALID_MASK;
+		break;
 	default:
 		r = 0;
 	}
@@ -860,6 +879,12 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 		ret = kvm_handle_mmio_return(vcpu);
 		if (ret)
 			return ret;
+	} else if (run->exit_reason == KVM_EXIT_HYPERCALL) {
+		smccc_set_retval(vcpu,
+				 vcpu->run->hypercall.ret,
+				 vcpu->run->hypercall.args[0],
+				 vcpu->run->hypercall.args[1],
+				 vcpu->run->hypercall.args[2]);
 	}
 
 	vcpu_load(vcpu);
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index 30da78f72b3b3..e41571fa90aaa 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -58,6 +58,24 @@ static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val)
 	val[3] = lower_32_bits(cycles);
 }
 
+static int kvm_vcpu_exit_hcall(struct kvm_vcpu *vcpu, u32 nr, u32 nr_args)
+{
+	u64 mask = vcpu->kvm->arch.hypercall_exit_enabled;
+	u32 i;
+
+	if (nr_args > 6 || !(mask & BIT(nr)))
+		return -EINVAL;
+
+	vcpu->run->exit_reason		= KVM_EXIT_HYPERCALL;
+	vcpu->run->hypercall.nr		= nr;
+
+	for (i = 0; i < nr_args; ++i)
+		vcpu->run->hypercall.args[i] = vcpu_get_reg(vcpu, i + 1);
+
+	vcpu->run->hypercall.longmode = !vcpu_mode_is_32bit(vcpu);
+	return 0;
+}
+
 int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 {
 	u32 func_id = smccc_get_function(vcpu);
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 3c77972c8a500..015e39488e36e 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1066,7 +1066,9 @@ struct kvm_ppc_resize_hpt {
 /*
 #define KVM_CAP_HYPERV_ENFORCE_CPUID 199
 #define KVM_CAP_SREGS2 200
+*/
 #define KVM_CAP_EXIT_HYPERCALL 201
+/*
 #define KVM_CAP_PPC_RPT_INVALIDATE 202
 #define KVM_CAP_BINARY_STATS_FD 203
 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
-- 
GitLab


From d7cbdc1b2a5ae0bc4276b8708173796784cdc119 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 25 Nov 2021 11:45:55 +0000
Subject: [PATCH 2691/4878] ANDROID: KVM: arm64: Add __pkvm_guest_share_host()

In preparation for allowing a protected guest to share individual pages
back with the host for the purposes of things like virtio buffers,
introduce __pkvm_guest_share_host() to take care of the associated
page-table updates and permission checking.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I6279b565b89a961628628aa4b1b592fdd57696e4
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |   1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 191 +++++++++++++++++-
 2 files changed, 190 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index e6f93ac38b6a4..dc599f8380c85 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -63,6 +63,7 @@ int __pkvm_host_unshare_hyp(u64 pfn);
 int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
 int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
+int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index da75c35ef4e85..64e23ba182069 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -662,6 +662,10 @@ struct pkvm_mem_transition {
 			struct {
 				u64	completer_addr;
 			} hyp;
+
+			struct {
+				struct kvm_vcpu *vcpu;
+			} guest;
 		};
 	} initiator;
 
@@ -686,6 +690,21 @@ struct pkvm_mem_donation {
 	const struct pkvm_mem_transition	tx;
 };
 
+static pkvm_id initiator_owner_id(const struct pkvm_mem_transition *tx)
+{
+	switch (tx->initiator.id) {
+	case PKVM_ID_HOST:
+		return pkvm_host_id;
+	case PKVM_ID_HYP:
+		return pkvm_hyp_id;
+	case PKVM_ID_GUEST:
+		return pkvm_guest_id(tx->initiator.guest.vcpu);
+	default:
+		WARN_ON(1);
+		return -1;
+	}
+}
+
 static pkvm_id completer_owner_id(const struct pkvm_mem_transition *tx)
 {
 	switch (tx->completer.id) {
@@ -816,14 +835,37 @@ static bool __host_ack_skip_pgtable_check(const struct pkvm_mem_transition *tx)
 		 tx->initiator.id != PKVM_ID_HYP);
 }
 
-static int host_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
+static int __host_ack_transition(u64 addr, const struct pkvm_mem_transition *tx,
+				 enum pkvm_page_state state)
 {
 	u64 size = tx->nr_pages * PAGE_SIZE;
 
 	if (__host_ack_skip_pgtable_check(tx))
 		return 0;
 
-	return __host_check_page_state_range(addr, size, PKVM_NOPAGE);
+	return __host_check_page_state_range(addr, size, state);
+}
+
+static int host_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
+			  enum kvm_pgtable_prot perms)
+{
+	if (perms != PKVM_HOST_MEM_PROT)
+		return -EPERM;
+
+	return __host_ack_transition(addr, tx, PKVM_NOPAGE);
+}
+
+static int host_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	return __host_ack_transition(addr, tx, PKVM_NOPAGE);
+}
+
+static int host_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
+			       enum kvm_pgtable_prot perms)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_BORROWED);
 }
 
 static int host_complete_donation(u64 addr, const struct pkvm_mem_transition *tx)
@@ -992,6 +1034,108 @@ static int guest_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 				      prot, &vcpu->arch.pkvm_memcache);
 }
 
+static int __guest_get_completer_addr(u64 *completer_addr, phys_addr_t phys,
+				      const struct pkvm_mem_transition *tx)
+{
+	switch (tx->completer.id) {
+	case PKVM_ID_HOST:
+		*completer_addr = phys;
+		break;
+	case PKVM_ID_HYP:
+		*completer_addr = (u64)__hyp_va(phys);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int __guest_request_page_transition(u64 *completer_addr,
+					   const struct pkvm_mem_transition *tx,
+					   enum pkvm_page_state desired)
+{
+	struct kvm_vcpu *vcpu = tx->initiator.guest.vcpu;
+	struct kvm_protected_vcpu *pkvm = &vcpu->arch.pkvm;
+	struct kvm_shadow_vm *vm = pkvm->shadow_vm;
+	enum pkvm_page_state state;
+	phys_addr_t phys;
+	kvm_pte_t pte;
+	u32 level;
+	int ret;
+
+	if (tx->nr_pages != 1)
+		return -E2BIG;
+
+	ret = kvm_pgtable_get_leaf(&vm->pgt, tx->initiator.addr, &pte, &level);
+	if (ret)
+		return ret;
+
+	state = guest_get_page_state(pte);
+	if (state == PKVM_NOPAGE)
+		return -EFAULT;
+
+	if (state != desired)
+		return -EPERM;
+
+	/*
+	 * We only deal with page granular mappings in the guest for now as
+	 * the pgtable code relies on being able to recreate page mappings
+	 * lazily after zapping a block mapping, which doesn't work once the
+	 * pages have been donated.
+	 */
+	if (level != KVM_PGTABLE_MAX_LEVELS - 1)
+		return -EINVAL;
+
+	phys = kvm_pte_to_phys(pte);
+	if (!addr_is_memory(phys))
+		return -EINVAL;
+
+	return __guest_get_completer_addr(completer_addr, phys, tx);
+}
+
+static int guest_request_share(u64 *completer_addr,
+			       const struct pkvm_mem_transition *tx)
+{
+	return __guest_request_page_transition(completer_addr, tx,
+					       PKVM_PAGE_OWNED);
+}
+
+static int __guest_initiate_page_transition(u64 *completer_addr,
+					    const struct pkvm_mem_transition *tx,
+					    enum pkvm_page_state state)
+{
+	struct kvm_vcpu *vcpu = tx->initiator.guest.vcpu;
+	struct kvm_protected_vcpu *pkvm = &vcpu->arch.pkvm;
+	struct kvm_shadow_vm *vm = pkvm->shadow_vm;
+	struct kvm_hyp_memcache *mc = &vcpu->arch.pkvm_memcache;
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	u64 addr = tx->initiator.addr;
+	enum kvm_pgtable_prot prot;
+	phys_addr_t phys;
+	kvm_pte_t pte;
+	int ret;
+
+	ret = kvm_pgtable_get_leaf(&vm->pgt, addr, &pte, NULL);
+	if (ret)
+		return ret;
+
+	phys = kvm_pte_to_phys(pte);
+	prot = pkvm_mkstate(kvm_pgtable_stage2_pte_prot(pte), state);
+	ret = kvm_pgtable_stage2_map(&vm->pgt, addr, size, phys, prot, mc);
+	if (ret)
+		return ret;
+
+	return __guest_get_completer_addr(completer_addr, phys, tx);
+}
+
+static int guest_initiate_share(u64 *completer_addr,
+				const struct pkvm_mem_transition *tx)
+{
+	return __guest_initiate_page_transition(completer_addr, tx,
+						PKVM_PAGE_SHARED_OWNED);
+}
+
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -1002,6 +1146,9 @@ static int check_share(struct pkvm_mem_share *share)
 	case PKVM_ID_HOST:
 		ret = host_request_owned_transition(&completer_addr, tx);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_request_share(&completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1010,6 +1157,9 @@ static int check_share(struct pkvm_mem_share *share)
 		return ret;
 
 	switch (tx->completer.id) {
+	case PKVM_ID_HOST:
+		ret = host_ack_share(completer_addr, tx, share->completer_prot);
+		break;
 	case PKVM_ID_HYP:
 		ret = hyp_ack_share(completer_addr, tx, share->completer_prot);
 		break;
@@ -1033,6 +1183,9 @@ static int __do_share(struct pkvm_mem_share *share)
 	case PKVM_ID_HOST:
 		ret = host_initiate_share(&completer_addr, tx);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_initiate_share(&completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1041,6 +1194,9 @@ static int __do_share(struct pkvm_mem_share *share)
 		return ret;
 
 	switch (tx->completer.id) {
+	case PKVM_ID_HOST:
+		ret = host_complete_share(completer_addr, tx, share->completer_prot);
+		break;
 	case PKVM_ID_HYP:
 		ret = hyp_complete_share(completer_addr, tx, share->completer_prot);
 		break;
@@ -1271,6 +1427,37 @@ int __pkvm_host_share_hyp(u64 pfn)
 	return ret;
 }
 
+int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa)
+{
+	int ret;
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_GUEST,
+				.addr	= ipa,
+				.guest	= {
+					.vcpu = vcpu,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HOST,
+			},
+		},
+		.completer_prot	= PKVM_HOST_MEM_PROT,
+	};
+
+	host_lock_component();
+	guest_lock_component(vcpu);
+
+	ret = do_share(&share);
+
+	guest_unlock_component(vcpu);
+	host_unlock_component();
+
+	return ret;
+}
+
 int __pkvm_host_unshare_hyp(u64 pfn)
 {
 	int ret;
-- 
GitLab


From 999a56ad61c3eef3998df9833b9101a81b131db8 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 25 Nov 2021 11:48:02 +0000
Subject: [PATCH 2692/4878] ANDROID: KVM: arm64: Add
 __pkvm_guest_unshare_host()

Introduce __pkvm_guest_unshare_host() to remove host access to a page
which was previously shared by protected guest.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I0a11a2458d6ff5bf1e9b8ece871ba1383ed4611d
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 70 +++++++++++++++++++
 2 files changed, 71 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index dc599f8380c85..80878b78be2a1 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -64,6 +64,7 @@ int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
 int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa);
+int __pkvm_guest_unshare_host(struct kvm_vcpu *vcpu, u64 ipa);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 64e23ba182069..16dcc748deb9b 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -860,6 +860,11 @@ static int host_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
 	return __host_ack_transition(addr, tx, PKVM_NOPAGE);
 }
 
+static int host_ack_unshare(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	return __host_ack_transition(addr, tx, PKVM_PAGE_SHARED_BORROWED);
+}
+
 static int host_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 			       enum kvm_pgtable_prot perms)
 {
@@ -868,6 +873,14 @@ static int host_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 	return __host_set_page_state_range(addr, size, PKVM_PAGE_SHARED_BORROWED);
 }
 
+static int host_complete_unshare(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+	pkvm_id owner_id = initiator_owner_id(tx);
+
+	return host_stage2_set_owner_locked(addr, size, owner_id);
+}
+
 static int host_complete_donation(u64 addr, const struct pkvm_mem_transition *tx)
 {
 	u64 size = tx->nr_pages * PAGE_SIZE;
@@ -1101,6 +1114,13 @@ static int guest_request_share(u64 *completer_addr,
 					       PKVM_PAGE_OWNED);
 }
 
+static int guest_request_unshare(u64 *completer_addr,
+				 const struct pkvm_mem_transition *tx)
+{
+	return __guest_request_page_transition(completer_addr, tx,
+					       PKVM_PAGE_SHARED_OWNED);
+}
+
 static int __guest_initiate_page_transition(u64 *completer_addr,
 					    const struct pkvm_mem_transition *tx,
 					    enum pkvm_page_state state)
@@ -1136,6 +1156,13 @@ static int guest_initiate_share(u64 *completer_addr,
 						PKVM_PAGE_SHARED_OWNED);
 }
 
+static int guest_initiate_unshare(u64 *completer_addr,
+				  const struct pkvm_mem_transition *tx)
+{
+	return __guest_initiate_page_transition(completer_addr, tx,
+						PKVM_PAGE_OWNED);
+}
+
 static int check_share(struct pkvm_mem_share *share)
 {
 	const struct pkvm_mem_transition *tx = &share->tx;
@@ -1240,6 +1267,9 @@ static int check_unshare(struct pkvm_mem_share *share)
 	case PKVM_ID_HOST:
 		ret = host_request_unshare(&completer_addr, tx);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_request_unshare(&completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1248,6 +1278,9 @@ static int check_unshare(struct pkvm_mem_share *share)
 		return ret;
 
 	switch (tx->completer.id) {
+	case PKVM_ID_HOST:
+		ret = host_ack_unshare(completer_addr, tx);
+		break;
 	case PKVM_ID_HYP:
 		ret = hyp_ack_unshare(completer_addr, tx);
 		break;
@@ -1268,6 +1301,9 @@ static int __do_unshare(struct pkvm_mem_share *share)
 	case PKVM_ID_HOST:
 		ret = host_initiate_unshare(&completer_addr, tx);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_initiate_unshare(&completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1276,6 +1312,9 @@ static int __do_unshare(struct pkvm_mem_share *share)
 		return ret;
 
 	switch (tx->completer.id) {
+	case PKVM_ID_HOST:
+		ret = host_complete_unshare(completer_addr, tx);
+		break;
 	case PKVM_ID_HYP:
 		ret = hyp_complete_unshare(completer_addr, tx);
 		break;
@@ -1458,6 +1497,37 @@ int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa)
 	return ret;
 }
 
+int __pkvm_guest_unshare_host(struct kvm_vcpu *vcpu, u64 ipa)
+{
+	int ret;
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_GUEST,
+				.addr	= ipa,
+				.guest	= {
+					.vcpu = vcpu,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_HOST,
+			},
+		},
+		.completer_prot	= PKVM_HOST_MEM_PROT,
+	};
+
+	host_lock_component();
+	guest_lock_component(vcpu);
+
+	ret = do_unshare(&share);
+
+	guest_unlock_component(vcpu);
+	host_unlock_component();
+
+	return ret;
+}
+
 int __pkvm_host_unshare_hyp(u64 pfn)
 {
 	int ret;
-- 
GitLab


From 82d27dc4c850c7e20d03caaa45fcc99f2d5205e6 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 25 Nov 2021 14:26:45 +0000
Subject: [PATCH 2693/4878] ANDROID: KVM: arm64: Advertise KVM vendor
 hypercalls to protected guests

Advertise KVM vendor hypercalls (i.e. those hypercalls residing in the
"vendor specific" service range of the SMCCC specification and identified
with KVM's UID) to protected guests from EL2 so that memory sharing
hypercalls can later be probed and utilised without involving the host.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: Ic80c2aaeba236f0cbcc515d5787a1a4ad230d1d6
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index dd4ad41dc5cc0..4b71cac88891f 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -960,14 +960,26 @@ static bool pkvm_handle_psci(struct kvm_vcpu *vcpu)
 bool pkvm_handle_hvc64(struct kvm_vcpu *vcpu)
 {
 	u32 fn = smccc_get_function(vcpu);
+	u64 val[4] = { SMCCC_RET_NOT_SUPPORTED };
 
 	switch (fn) {
 	case ARM_SMCCC_VERSION_FUNC_ID:
 		/* Nothing to be handled by the host. Go back to the guest. */
-		smccc_set_retval(vcpu, ARM_SMCCC_VERSION_1_1, 0, 0, 0);
-		return true;
-
+		val[0] = ARM_SMCCC_VERSION_1_1;
+		break;
+	case ARM_SMCCC_VENDOR_HYP_CALL_UID_FUNC_ID:
+		val[0] = ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_0;
+		val[1] = ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_1;
+		val[2] = ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_2;
+		val[3] = ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_3;
+		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID:
+		val[0] = BIT(ARM_SMCCC_KVM_FUNC_FEATURES);
+		break;
 	default:
 		return pkvm_handle_psci(vcpu);
 	}
+
+	smccc_set_retval(vcpu, val[0], val[1], val[2], val[3]);
+	return true;
 }
-- 
GitLab


From e2fe2a2d524e055718da47bf1edb2587f455e2d9 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 25 Nov 2021 14:13:32 +0000
Subject: [PATCH 2694/4878] ANDROID: KVM: arm64: Add MEMINFO and {UN,}SHARE
 hypercalls for protected guests

Expose the __pkvm_guest_{un,}share_host() functionality to protected
guests in the form of three new hypercalls in the KVM vendor service
range:

  - HYP_MEMINFO: Query the size of the sharing granule (i.e. the stage-2
                 page size)

  - MEM_SHARE: Share a page back with the host, granting RWX permission.

  - MEM_UNSHARE: Remove host access to a page previously shared with
                 MEM_SHARE.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: Ie5a1f215058df6738e1d4f357497c82b8617c765
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |   2 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c     |  10 +++
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 100 ++++++++++++++++++++++++-
 arch/arm64/kvm/hyp/nvhe/switch.c       |  11 ---
 include/linux/arm-smccc.h              |  21 ++++++
 5 files changed, 131 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 30922f99e2f8a..bdaacd70b9fed 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -64,7 +64,7 @@ int kvm_check_pvm_sysreg_table(void);
 
 void pkvm_reset_vcpu(struct kvm_vcpu *vcpu);
 
-bool pkvm_handle_hvc64(struct kvm_vcpu *vcpu);
+bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code);
 
 struct kvm_vcpu *pvm_mpidr_to_vcpu(struct kvm_shadow_vm *vm, unsigned long mpidr);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 59f289f708f4f..60ad5dd14f0e9 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -77,6 +77,11 @@ static void handle_pvm_entry_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *
 	u32 fn = smccc_get_function(shadow_vcpu);
 
 	switch (fn) {
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
+		fallthrough;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
+		vcpu_set_reg(shadow_vcpu, 0, SMCCC_RET_SUCCESS);
+		break;
 	default:
 		handle_pvm_entry_psci(host_vcpu, shadow_vcpu);
 		break;
@@ -258,6 +263,11 @@ static int get_num_hvc_args(struct kvm_vcpu *vcpu)
 	case PSCI_0_2_FN64_CPU_SUSPEND:
 		return 0;
 
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
+		fallthrough;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
+		return 3;
+
 	/* The rest are either blocked or handled by hyp. */
 	default:
 		return -1;
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 4b71cac88891f..811cb17841dd2 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -957,7 +957,89 @@ static bool pkvm_handle_psci(struct kvm_vcpu *vcpu)
 	return pvm_psci_not_supported(vcpu);
 }
 
-bool pkvm_handle_hvc64(struct kvm_vcpu *vcpu)
+static u64 __pkvm_memshare_page_req(struct kvm_vcpu *vcpu, u64 ipa)
+{
+	u64 elr;
+
+	/* Fake up a data abort (Level 3 translation fault on write) */
+	vcpu->arch.fault.esr_el2 = (u32)ESR_ELx_EC_DABT_LOW << ESR_ELx_EC_SHIFT |
+				   ESR_ELx_WNR | ESR_ELx_FSC_FAULT |
+				   FIELD_PREP(ESR_ELx_FSC_LEVEL, 3);
+
+	/* Shuffle the IPA around into the HPFAR */
+	vcpu->arch.fault.hpfar_el2 = (ipa >> 8) & HPFAR_MASK;
+
+	/* This is a virtual address. 0's good. Let's go with 0. */
+	vcpu->arch.fault.far_el2 = 0;
+
+	/* Rewind the ELR so we return to the HVC once the IPA is mapped */
+	elr = read_sysreg(elr_el2);
+	elr -=4;
+	write_sysreg(elr, elr_el2);
+
+	return ARM_EXCEPTION_TRAP;
+}
+
+static bool pkvm_memshare_call(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	u64 ipa = smccc_get_arg1(vcpu);
+	u64 arg2 = smccc_get_arg2(vcpu);
+	u64 arg3 = smccc_get_arg3(vcpu);
+	int err;
+
+	if (arg2 || arg3)
+		goto out_guest_err;
+
+	err = __pkvm_guest_share_host(vcpu, ipa);
+	switch (err) {
+	case 0:
+		/* Success! Now tell the host. */
+		goto out_host;
+	case -EFAULT:
+		/*
+		 * Convert the exception into a data abort so that the page
+		 * being shared is mapped into the guest next time.
+		 */
+		*exit_code = __pkvm_memshare_page_req(vcpu, ipa);
+		goto out_host;
+	}
+
+out_guest_err:
+	smccc_set_retval(vcpu, SMCCC_RET_INVALID_PARAMETER, 0, 0, 0);
+	return true;
+
+out_host:
+	return false;
+}
+
+static bool pkvm_memunshare_call(struct kvm_vcpu *vcpu)
+{
+	u64 ipa = smccc_get_arg1(vcpu);
+	u64 arg2 = smccc_get_arg2(vcpu);
+	u64 arg3 = smccc_get_arg3(vcpu);
+	int err;
+
+	if (arg2 || arg3)
+		goto out_guest_err;
+
+	err = __pkvm_guest_unshare_host(vcpu, ipa);
+	if (err)
+		goto out_guest_err;
+
+	return false;
+
+out_guest_err:
+	smccc_set_retval(vcpu, SMCCC_RET_INVALID_PARAMETER, 0, 0, 0);
+	return true;
+}
+
+/*
+ * Handler for protected VM HVC calls.
+ *
+ * Returns true if the hypervisor has handled the exit, and control should go
+ * back to the guest, or false if it hasn't.
+ */
+bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
 	u32 fn = smccc_get_function(vcpu);
 	u64 val[4] = { SMCCC_RET_NOT_SUPPORTED };
@@ -975,7 +1057,23 @@ bool pkvm_handle_hvc64(struct kvm_vcpu *vcpu)
 		break;
 	case ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID:
 		val[0] = BIT(ARM_SMCCC_KVM_FUNC_FEATURES);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_HYP_MEMINFO);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MEM_SHARE);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MEM_UNSHARE);
+		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_HYP_MEMINFO_FUNC_ID:
+		if (smccc_get_arg1(vcpu) ||
+		    smccc_get_arg2(vcpu) ||
+		    smccc_get_arg3(vcpu)) {
+			val[0] = SMCCC_RET_INVALID_PARAMETER;
+		} else {
+			val[0] = PAGE_SIZE;
+		}
 		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
+		return pkvm_memshare_call(vcpu, exit_code);
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
+		return pkvm_memunshare_call(vcpu);
 	default:
 		return pkvm_handle_psci(vcpu);
 	}
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 2611372762931..8d18560ee015a 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -192,17 +192,6 @@ static bool kvm_handle_pvm_fpsimd(struct kvm_vcpu *vcpu, u64 *exit_code)
 	return kvm_hyp_handle_fpsimd(vcpu, exit_code);
 }
 
-/*
- * Handler for protected VM HVC calls.
- *
- * Returns true if the hypervisor has handled the exit, and control should go
- * back to the guest, or false if it hasn't.
- */
-static bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code)
-{
-	return pkvm_handle_hvc64(vcpu);
-}
-
 static const exit_handler_fn hyp_exit_handlers[] = {
 	[0 ... ESR_ELx_EC_MAX]		= NULL,
 	[ESR_ELx_EC_CP15_32]		= kvm_hyp_handle_cp15_32,
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 5cef2b8b0479e..81ede58e0ab67 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -104,6 +104,9 @@
 /* KVM "vendor specific" services */
 #define ARM_SMCCC_KVM_FUNC_FEATURES		0
 #define ARM_SMCCC_KVM_FUNC_PTP			1
+#define ARM_SMCCC_KVM_FUNC_HYP_MEMINFO		2
+#define ARM_SMCCC_KVM_FUNC_MEM_SHARE		3
+#define ARM_SMCCC_KVM_FUNC_MEM_UNSHARE		4
 #define ARM_SMCCC_KVM_FUNC_FEATURES_2		127
 #define ARM_SMCCC_KVM_NUM_FUNCS			128
 
@@ -126,6 +129,24 @@
 			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
 			   ARM_SMCCC_KVM_FUNC_PTP)
 
+#define ARM_SMCCC_VENDOR_HYP_KVM_HYP_MEMINFO_FUNC_ID			\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_HYP_MEMINFO)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID			\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_MEM_SHARE)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID			\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_MEM_UNSHARE)
+
 /* ptp_kvm counter type ID */
 #define KVM_PTP_VIRT_COUNTER			0
 #define KVM_PTP_PHYS_COUNTER			1
-- 
GitLab


From 7f19cf521f49f3df6801cb2acf421215c2a35cb2 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 25 Nov 2021 14:14:44 +0000
Subject: [PATCH 2695/4878] ANDROID: KVM: arm64: Allow userspace to receive
 SHARE and UNSHARE notifications

Expose MEM_SHARE and MEM_UNSHARE hypercalls to the KVM_CAP_EXIT_HYPERCALL
capability, allowing userspace (i.e. the VMM) to mprotect() its own
mapping of the pages based upon changes to the host permissions.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I95890595f8cc5493a5a67636bd22da3cc90a95fc
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/arm.c        | 3 ++-
 arch/arm64/kvm/hypercalls.c | 8 ++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 0246e05fde9ab..542f05684f4a3 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -64,7 +64,8 @@ static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
 DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
 
 /* KVM "vendor" hypercalls which may be forwarded to userspace on request. */
-#define KVM_EXIT_HYPERCALL_VALID_MASK	(0)
+#define KVM_EXIT_HYPERCALL_VALID_MASK	(BIT(ARM_SMCCC_KVM_FUNC_MEM_SHARE) |	\
+					 BIT(ARM_SMCCC_KVM_FUNC_MEM_UNSHARE))
 
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index e41571fa90aaa..96be983817198 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -151,6 +151,14 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 	case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID:
 		kvm_ptp_get_time(vcpu, val);
 		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
+		if (!kvm_vcpu_exit_hcall(vcpu, ARM_SMCCC_KVM_FUNC_MEM_SHARE, 3))
+			return 0;
+		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
+		if (!kvm_vcpu_exit_hcall(vcpu, ARM_SMCCC_KVM_FUNC_MEM_UNSHARE, 3))
+			return 0;
+		break;
 	case ARM_SMCCC_TRNG_VERSION:
 	case ARM_SMCCC_TRNG_FEATURES:
 	case ARM_SMCCC_TRNG_GET_UUID:
-- 
GitLab


From 04655254570d0b9aa2d52de38224a76f6f0f392e Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 26 Oct 2021 16:52:07 +0100
Subject: [PATCH 2696/4878] ANDROID: KVM: arm64: Donate pages to protected
 guests

Now that we have all the infrastructure in place to allow guest-to-host
sharing of pages in protected mode, let's stop sharing the pages from
the host on guest memory aborts and switch to a proper donation instead.

Signed-off-by Quentin Perret <qperret@google.com>

Bug: 209580772
Change-Id: Ib37625172e24950cd74913a20bff8ce29a72f45b
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h              |  2 +-
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  6 +-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 61 +++++++++++++++++++
 arch/arm64/kvm/mmu.c                          |  8 +--
 5 files changed, 70 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 2735c92f2b562..efbad6f97f89b 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -63,7 +63,7 @@ enum __kvm_host_smccc_func {
 	/* Hypercalls available after pKVM finalisation */
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_unshare_hyp,
-	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_guest,
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_donate_guest,
 	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
 	__KVM_HOST_SMCCC_FUNC___kvm_flush_vm_context,
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 80878b78be2a1..998a54a520932 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -63,6 +63,7 @@ int __pkvm_host_unshare_hyp(u64 pfn);
 int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
 int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
+int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa);
 int __pkvm_guest_unshare_host(struct kvm_vcpu *vcpu, u64 ipa);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 60ad5dd14f0e9..32997ba4abf09 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -594,7 +594,7 @@ static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) =  ret;
 }
 
-static void handle___pkvm_host_share_guest(struct kvm_cpu_context *host_ctxt)
+static void handle___pkvm_host_donate_guest(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, pfn, host_ctxt, 1);
 	DECLARE_REG(u64, gfn, host_ctxt, 2);
@@ -616,7 +616,7 @@ static void handle___pkvm_host_share_guest(struct kvm_cpu_context *host_ctxt)
 	ret = refill_memcache(&state->vcpu->arch.pkvm_memcache, nr_pages,
 			      &vcpu->arch.pkvm_memcache);
 	if (!ret)
-		ret = __pkvm_host_share_guest(pfn, gfn, state->vcpu);
+		ret = __pkvm_host_donate_guest(pfn, gfn, state->vcpu);
 out:
 	cpu_reg(host_ctxt, 1) =  ret;
 }
@@ -860,7 +860,7 @@ static const hcall_t host_hcall[] = {
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
 	HANDLE_FUNC(__pkvm_host_unshare_hyp),
-	HANDLE_FUNC(__pkvm_host_share_guest),
+	HANDLE_FUNC(__pkvm_host_donate_guest),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
 	HANDLE_FUNC(__kvm_flush_vm_context),
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 16dcc748deb9b..4a6b4d1a07951 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -1034,6 +1034,14 @@ static int guest_ack_share(u64 addr, const struct pkvm_mem_transition *tx,
 					      size, PKVM_NOPAGE);
 }
 
+static int guest_ack_donation(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	return __guest_check_page_state_range(tx->completer.guest.vcpu, addr,
+					      size, PKVM_NOPAGE);
+}
+
 static int guest_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 				enum kvm_pgtable_prot perms)
 {
@@ -1047,6 +1055,17 @@ static int guest_complete_share(u64 addr, const struct pkvm_mem_transition *tx,
 				      prot, &vcpu->arch.pkvm_memcache);
 }
 
+static int guest_complete_donation(u64 addr, const struct pkvm_mem_transition *tx)
+{
+	enum kvm_pgtable_prot prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_OWNED);
+	struct kvm_vcpu *vcpu = tx->completer.guest.vcpu;
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	u64 size = tx->nr_pages * PAGE_SIZE;
+
+	return kvm_pgtable_stage2_map(&vm->pgt, addr, size, tx->completer.guest.phys,
+				      prot, &vcpu->arch.pkvm_memcache);
+}
+
 static int __guest_get_completer_addr(u64 *completer_addr, phys_addr_t phys,
 				      const struct pkvm_mem_transition *tx)
 {
@@ -1372,6 +1391,9 @@ static int check_donation(struct pkvm_mem_donation *donation)
 	case PKVM_ID_HYP:
 		ret = hyp_ack_donation(completer_addr, tx);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_ack_donation(completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1406,6 +1428,9 @@ static int __do_donate(struct pkvm_mem_donation *donation)
 	case PKVM_ID_HYP:
 		ret = hyp_complete_donation(completer_addr, tx);
 		break;
+	case PKVM_ID_GUEST:
+		ret = guest_complete_donation(completer_addr, tx);
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1706,3 +1731,39 @@ int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
 
 	return ret;
 }
+
+int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
+{
+	int ret;
+	u64 host_addr = hyp_pfn_to_phys(pfn);
+	u64 guest_addr = hyp_pfn_to_phys(gfn);
+	struct pkvm_mem_donation donation = {
+		.tx	= {
+			.nr_pages	= 1,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= host_addr,
+				.host	= {
+					.completer_addr = guest_addr,
+				},
+			},
+			.completer	= {
+				.id	= PKVM_ID_GUEST,
+				.guest	= {
+					.vcpu = vcpu,
+					.phys = host_addr,
+				},
+			},
+		},
+	};
+
+	host_lock_component();
+	guest_lock_component(vcpu);
+
+	ret = do_donate(&donation);
+
+	guest_unlock_component(vcpu);
+	host_unlock_component();
+
+	return ret;
+}
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 761a737844e41..1fd370eaea4fa 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1125,17 +1125,17 @@ static int sanitise_mte_tags(struct kvm *kvm, kvm_pfn_t pfn,
 	return 0;
 }
 
-static int pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
+static int pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
 {
 	struct arm_smccc_res res;
 
-	arm_smccc_1_1_hvc(KVM_HOST_SMCCC_FUNC(__pkvm_host_share_guest),
+	arm_smccc_1_1_hvc(KVM_HOST_SMCCC_FUNC(__pkvm_host_donate_guest),
 			  pfn, gfn, vcpu, &res);
 	WARN_ON(res.a0 != SMCCC_RET_SUCCESS);
 
 	/*
 	 * Getting -EPERM at this point implies that the pfn has already been
-	 * shared. This should only ever happen when two vCPUs faulted on the
+	 * donated. This should only ever happen when two vCPUs faulted on the
 	 * same page, and the current one lost the race to do the donation.
 	 */
 	return (res.a1 == -EPERM) ? -EAGAIN : res.a1;
@@ -1182,7 +1182,7 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	}
 
 	pfn = page_to_pfn(page);
-	ret = pkvm_host_share_guest(pfn, fault_ipa >> PAGE_SHIFT, vcpu);
+	ret = pkvm_host_donate_guest(pfn, fault_ipa >> PAGE_SHIFT, vcpu);
 	if (ret) {
 		if (ret == -EAGAIN)
 			ret = 0;
-- 
GitLab


From 49eccab7c304e975d08dca657337e42ef8332814 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 22 Nov 2021 15:26:00 +0000
Subject: [PATCH 2697/4878] ANDROID: BACKPORT: KVM: arm64: Zero protected guest
 pages on teardown

When a protected guest is torn down, the hypervisor currently
transitions the ownership of all the guest pages back to the host
without further intervention, which might leak guest secrets. To prevent
this, let's have the hypervisor zero the page before they can be
reclaimed by the host.

Signed-off-by: Quentin Perret <qperret@google.com>
[willdeacon@: Move pkvm_host_poison to mem_protect.h]
Bug: 209580772
Change-Id: Ib39de531284fef02c1cb84b83f0819f9e6f36f9b
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h              |  1 +
 arch/arm64/kvm/arm.c                          |  4 ++
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  2 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  8 +++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 64 +++++++++++++++++--
 5 files changed, 73 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index efbad6f97f89b..0e4a0b179a857 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -63,6 +63,7 @@ enum __kvm_host_smccc_func {
 	/* Hypercalls available after pKVM finalisation */
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_share_hyp,
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_unshare_hyp,
+	__KVM_HOST_SMCCC_FUNC___pkvm_host_reclaim_page,
 	__KVM_HOST_SMCCC_FUNC___pkvm_host_donate_guest,
 	__KVM_HOST_SMCCC_FUNC___kvm_adjust_pc,
 	__KVM_HOST_SMCCC_FUNC___kvm_vcpu_run,
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 542f05684f4a3..97b40bd1d4295 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -195,6 +195,10 @@ static void kvm_shadow_destroy(struct kvm *kvm)
 
 	ppages = &kvm->arch.pkvm.pinned_pages;
 	list_for_each_entry_safe(ppage, tmp, ppages, link) {
+		WARN_ON(kvm_call_hyp_nvhe(__pkvm_host_reclaim_page,
+					  page_to_pfn(ppage->page)));
+		cond_resched();
+
 		account_locked_vm(mm, 1, false);
 		unpin_user_pages_dirty_lock(&ppage->page, 1, true);
 		list_del(&ppage->link);
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 998a54a520932..72a7c4a58fa68 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -54,12 +54,14 @@ extern struct host_kvm host_kvm;
 typedef u32 pkvm_id;
 static const pkvm_id pkvm_host_id	= 0;
 static const pkvm_id pkvm_hyp_id	= (1 << 16);
+static const pkvm_id pkvm_host_poison	= pkvm_hyp_id + 1;
 
 extern unsigned long hyp_nr_cpus;
 
 int __pkvm_prot_finalize(void);
 int __pkvm_host_share_hyp(u64 pfn);
 int __pkvm_host_unshare_hyp(u64 pfn);
+int __pkvm_host_reclaim_page(u64 pfn);
 int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
 int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 32997ba4abf09..7d61b5fad4a4c 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -811,6 +811,13 @@ static void handle___pkvm_host_unshare_hyp(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_host_unshare_hyp(pfn);
 }
 
+static void handle___pkvm_host_reclaim_page(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(u64, pfn, host_ctxt, 1);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_host_reclaim_page(pfn);
+}
+
 static void handle___pkvm_create_private_mapping(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(phys_addr_t, phys, host_ctxt, 1);
@@ -860,6 +867,7 @@ static const hcall_t host_hcall[] = {
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
 	HANDLE_FUNC(__pkvm_host_unshare_hyp),
+	HANDLE_FUNC(__pkvm_host_reclaim_page),
 	HANDLE_FUNC(__pkvm_host_donate_guest),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 4a6b4d1a07951..4baf271b7c517 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -304,12 +304,7 @@ static int reclaim_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	 * stage-2 so no need to waste effort trying to keep it in sync.
 	 */
 	phys = kvm_pte_to_phys(pte);
-	BUG_ON(host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_host_id));
-
-	/*
-	 * XXX: if protected guest mark the page 'dirty' instead, and zero it
-	 * lazily on host s2 aborts.
-	 */
+	BUG_ON(host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_host_poison));
 
 	return 0;
 }
@@ -523,6 +518,11 @@ static kvm_pte_t kvm_init_invalid_leaf_owner(pkvm_id owner_id)
 	return FIELD_PREP(KVM_INVALID_PTE_OWNER_MASK, owner_id);
 }
 
+static pkvm_id kvm_get_owner_id(kvm_pte_t pte)
+{
+	return FIELD_GET(KVM_INVALID_PTE_OWNER_MASK, pte);
+}
+
 int host_stage2_set_owner_locked(phys_addr_t addr, u64 size,
 				 pkvm_id owner_id)
 {
@@ -1767,3 +1767,55 @@ int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
 
 	return ret;
 }
+
+static int hyp_zero_page(phys_addr_t phys)
+{
+	void *addr;
+
+	addr = hyp_fixmap_map(phys);
+	if (!addr)
+		return -EINVAL;
+	memset(addr, 0, PAGE_SIZE);
+	__clean_dcache_guest_page(addr, PAGE_SIZE);
+
+	return hyp_fixmap_unmap();
+}
+
+int __pkvm_host_reclaim_page(u64 pfn)
+{
+	u64 addr = hyp_pfn_to_phys(pfn);
+	enum pkvm_page_state state;
+	kvm_pte_t pte;
+	int ret;
+
+	host_lock_component();
+
+	ret = kvm_pgtable_get_leaf(&host_kvm.pgt, addr, &pte, NULL);
+	if (ret)
+		goto unlock;
+
+	if (kvm_pte_valid(pte)) {
+		state = host_get_page_state(pte);
+		ret = (state == PKVM_PAGE_OWNED) ? 0 : -EPERM;
+		goto unlock;
+	}
+
+	switch (kvm_get_owner_id(pte)) {
+	case pkvm_host_id:
+		ret = 0;
+		break;
+	case pkvm_host_poison:
+		ret = hyp_zero_page(addr);
+		if (ret)
+			goto unlock;
+		ret = host_stage2_set_owner_locked(addr, PAGE_SIZE, pkvm_host_id);
+		break;
+	default:
+		ret = -EPERM;
+	}
+
+unlock:
+	host_unlock_component();
+
+	return ret;
+}
-- 
GitLab


From be06c4567fb61d2af59defaea5d61fe37ee777e1 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 4 Oct 2021 18:48:44 +0100
Subject: [PATCH 2698/4878] FROMLIST: firmware/smccc: Call arch-specific hook
 on discovering KVM services

arm64 will soon require its own callback to initialise services
that are only availably on this architecture. Introduce a hook
that can be overloaded by the architecture.

Link: https://lore.kernel.org/r/20211004174849.2831548-12-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I743e1786df1477b3c9fab0fe2e5ea52a7dcdf01f
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm/include/asm/hypervisor.h   | 1 +
 arch/arm64/include/asm/hypervisor.h | 1 +
 drivers/firmware/smccc/kvm_guest.c  | 4 ++++
 3 files changed, 6 insertions(+)

diff --git a/arch/arm/include/asm/hypervisor.h b/arch/arm/include/asm/hypervisor.h
index bd61502b97153..8133c8c81a352 100644
--- a/arch/arm/include/asm/hypervisor.h
+++ b/arch/arm/include/asm/hypervisor.h
@@ -6,5 +6,6 @@
 
 void kvm_init_hyp_services(void);
 bool kvm_arm_hyp_service_available(u32 func_id);
+void kvm_arm_init_hyp_services(void);
 
 #endif
diff --git a/arch/arm64/include/asm/hypervisor.h b/arch/arm64/include/asm/hypervisor.h
index 0ae427f352c8c..8e77f411903f9 100644
--- a/arch/arm64/include/asm/hypervisor.h
+++ b/arch/arm64/include/asm/hypervisor.h
@@ -6,5 +6,6 @@
 
 void kvm_init_hyp_services(void);
 bool kvm_arm_hyp_service_available(u32 func_id);
+void kvm_arm_init_hyp_services(void);
 
 #endif
diff --git a/drivers/firmware/smccc/kvm_guest.c b/drivers/firmware/smccc/kvm_guest.c
index 2d3e866decaa6..56169e73252a3 100644
--- a/drivers/firmware/smccc/kvm_guest.c
+++ b/drivers/firmware/smccc/kvm_guest.c
@@ -9,6 +9,8 @@
 
 #include <asm/hypervisor.h>
 
+void __weak kvm_arm_init_hyp_services(void) {}
+
 static DECLARE_BITMAP(__kvm_arm_hyp_services, ARM_SMCCC_KVM_NUM_FUNCS) __ro_after_init = { };
 
 void __init kvm_init_hyp_services(void)
@@ -38,6 +40,8 @@ void __init kvm_init_hyp_services(void)
 
 	pr_info("hypervisor services detected (0x%08lx 0x%08lx 0x%08lx 0x%08lx)\n",
 		 res.a3, res.a2, res.a1, res.a0);
+
+	kvm_arm_init_hyp_services();
 }
 
 bool kvm_arm_hyp_service_available(u32 func_id)
-- 
GitLab


From c144439fa9f39e6f203dd609a012f5ce31a138a8 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Thu, 5 Aug 2021 14:23:07 +0100
Subject: [PATCH 2699/4878] ANDROID: BACKPORT: arm64: mm: Implement memory
 encryption API using KVM sharing hypercalls

When running as a protected guest, the KVM host does not have access to
any pages mapped into the guest. Consequently, KVM exposes hypercalls to
the guest so that pages can be shared back with the host for the purposes
of shared memory communication such as virtio.

Detect the presence of these hypercalls when running as a guest and use
them to implement the memory encryption interfaces gated by
CONFIG_ARCH_HAS_MEM_ENCRYPT which are called from the DMA layer to share
SWIOTLB bounce buffers for virtio.

Although no encryption is actually performed, "sharing" a page is akin
to decryption, whereas "unsharing" a page maps to encryption, albeit
without destruction of the underlying page contents.

Signed-off-by: Will Deacon <will@kernel.org>
[willdeacon@: Use asm/mem_encrypt.h instead of asm/set_memory.h; Implement mem_encrypt_active()]
Bug: 209580772
Change-Id: I5955ff0dca65561183f9a60e94be87f28fbf14ec
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/Kconfig                   |   1 +
 arch/arm64/include/asm/hypervisor.h  |   1 +
 arch/arm64/include/asm/mem_encrypt.h |   9 +++
 arch/arm64/kernel/setup.c            |   6 ++
 arch/arm64/mm/Makefile               |   2 +-
 arch/arm64/mm/mem_encrypt.c          | 102 +++++++++++++++++++++++++++
 drivers/irqchip/irq-gic-v3-its.c     |   1 +
 7 files changed, 121 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/include/asm/mem_encrypt.h
 create mode 100644 arch/arm64/mm/mem_encrypt.c

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index dc910c4694ef6..1f519e3bbcd05 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -23,6 +23,7 @@ config ARM64
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_KEEPINITRD
 	select ARCH_HAS_MEMBARRIER_SYNC_CORE
+	select ARCH_HAS_MEM_ENCRYPT
 	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
 	select ARCH_HAS_PTE_DEVMAP
 	select ARCH_HAS_PTE_SPECIAL
diff --git a/arch/arm64/include/asm/hypervisor.h b/arch/arm64/include/asm/hypervisor.h
index 8e77f411903f9..ef8e55e6f2f29 100644
--- a/arch/arm64/include/asm/hypervisor.h
+++ b/arch/arm64/include/asm/hypervisor.h
@@ -7,5 +7,6 @@
 void kvm_init_hyp_services(void);
 bool kvm_arm_hyp_service_available(u32 func_id);
 void kvm_arm_init_hyp_services(void);
+void kvm_init_memshare_services(void);
 
 #endif
diff --git a/arch/arm64/include/asm/mem_encrypt.h b/arch/arm64/include/asm/mem_encrypt.h
new file mode 100644
index 0000000000000..300c8b8cbebe1
--- /dev/null
+++ b/arch/arm64/include/asm/mem_encrypt.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_MEM_ENCRYPT_H
+#define __ASM_MEM_ENCRYPT_H
+
+bool mem_encrypt_active(void);
+int set_memory_encrypted(unsigned long addr, int numpages);
+int set_memory_decrypted(unsigned long addr, int numpages);
+
+#endif	/* __ASM_MEM_ENCRYPT_H */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index a6ec917a12407..e953de92bc54e 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -39,6 +39,7 @@
 #include <asm/elf.h>
 #include <asm/cpufeature.h>
 #include <asm/cpu_ops.h>
+#include <asm/hypervisor.h>
 #include <asm/kasan.h>
 #include <asm/numa.h>
 #include <asm/sections.h>
@@ -453,3 +454,8 @@ static int __init register_arm64_panic_block(void)
 	return 0;
 }
 device_initcall(register_arm64_panic_block);
+
+void kvm_arm_init_hyp_services(void)
+{
+	kvm_init_memshare_services();
+}
diff --git a/arch/arm64/mm/Makefile b/arch/arm64/mm/Makefile
index 5ead3c3de3b61..ca650b2dce43f 100644
--- a/arch/arm64/mm/Makefile
+++ b/arch/arm64/mm/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 obj-y				:= dma-mapping.o extable.o fault.o init.o \
 				   cache.o copypage.o flush.o \
-				   ioremap.o mmap.o pgd.o mmu.o \
+				   ioremap.o mem_encrypt.o mmap.o pgd.o mmu.o \
 				   context.o proc.o pageattr.o
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
 obj-$(CONFIG_PTDUMP_CORE)	+= ptdump.o
diff --git a/arch/arm64/mm/mem_encrypt.c b/arch/arm64/mm/mem_encrypt.c
new file mode 100644
index 0000000000000..ff75dd3200bc6
--- /dev/null
+++ b/arch/arm64/mm/mem_encrypt.c
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Implementation of the memory encryption/decryption API.
+ *
+ * Amusingly, no crypto is actually performed. Rather, we call into the
+ * hypervisor component of KVM to expose pages selectively to the host
+ * for virtio "DMA" operations. In other words, "encrypted" pages are
+ * not accessible to the host, whereas "decrypted" pages are.
+ *
+ * Author: Will Deacon <will@kernel.org>
+ */
+#include <linux/arm-smccc.h>
+#include <linux/mem_encrypt.h>
+#include <linux/memory.h>
+#include <linux/mm.h>
+#include <linux/set_memory.h>
+#include <linux/types.h>
+
+#include <asm/hypervisor.h>
+
+static unsigned long memshare_granule_sz;
+
+bool mem_encrypt_active(void)
+{
+	return memshare_granule_sz;
+}
+EXPORT_SYMBOL(mem_encrypt_active);
+
+void kvm_init_memshare_services(void)
+{
+	int i;
+	struct arm_smccc_res res;
+	const u32 funcs[] = {
+		ARM_SMCCC_KVM_FUNC_HYP_MEMINFO,
+		ARM_SMCCC_KVM_FUNC_MEM_SHARE,
+		ARM_SMCCC_KVM_FUNC_MEM_UNSHARE,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(funcs); ++i) {
+		if (!kvm_arm_hyp_service_available(funcs[i]))
+			return;
+	}
+
+	arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_HYP_MEMINFO_FUNC_ID,
+			     0, 0, 0, &res);
+	if (res.a0 > PAGE_SIZE) /* Includes error codes */
+		return;
+
+	memshare_granule_sz = res.a0;
+}
+
+static int arm_smccc_share_unshare_page(u32 func_id, phys_addr_t phys)
+{
+	phys_addr_t end = phys + PAGE_SIZE;
+
+	while (phys < end) {
+		struct arm_smccc_res res;
+
+		arm_smccc_1_1_invoke(func_id, phys, 0, 0, &res);
+		if (res.a0 != SMCCC_RET_SUCCESS)
+			return -EPERM;
+
+		phys += memshare_granule_sz;
+	}
+
+	return 0;
+}
+
+static int set_memory_xcrypted(u32 func_id, unsigned long start, int numpages)
+{
+	void *addr = (void *)start, *end = addr + numpages * PAGE_SIZE;
+
+	while (addr < end) {
+		int err;
+
+		err = arm_smccc_share_unshare_page(func_id, virt_to_phys(addr));
+		if (err)
+			return err;
+
+		addr += PAGE_SIZE;
+	}
+
+	return 0;
+}
+
+int set_memory_encrypted(unsigned long addr, int numpages)
+{
+	if (!memshare_granule_sz || WARN_ON(!PAGE_ALIGNED(addr)))
+		return 0;
+
+	return set_memory_xcrypted(ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID,
+				   addr, numpages);
+}
+
+int set_memory_decrypted(unsigned long addr, int numpages)
+{
+	if (!memshare_granule_sz || WARN_ON(!PAGE_ALIGNED(addr)))
+		return 0;
+
+	return set_memory_xcrypted(ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID,
+				   addr, numpages);
+}
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index bf0802e81d281..e9a4fb326d240 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -19,6 +19,7 @@
 #include <linux/list.h>
 #include <linux/log2.h>
 #include <linux/memblock.h>
+#include <linux/mem_encrypt.h>
 #include <linux/mm.h>
 #include <linux/msi.h>
 #include <linux/of.h>
-- 
GitLab


From 003b19bae85ac1805d7cf6c67b40bb1b16a00f1f Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 9 Dec 2021 13:04:18 +0000
Subject: [PATCH 2700/4878] ANDROID: KVM: arm64: Create EL2 shadow for VMs when
 pKVM is enabled

Regardless of whether a given VM is protected or unprotected, when pKVM
is enabled we must create an EL2 shadow for each VM so that the stage-2
page-tables are managed by the hypervisor instead of the host.

Create the EL2 shadow for a VM on the first-run of a vCPU when a shadow
is not already present.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I3e0ec8907f46b17d74623b84a029a5b50aeaf14f
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h |  1 +
 arch/arm64/include/asm/kvm_pkvm.h |  2 ++
 arch/arm64/kvm/arm.c              |  3 +++
 arch/arm64/kvm/pkvm.c             | 23 +++++++----------------
 4 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 1499c2d54a87a..c17aee87de91c 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -164,6 +164,7 @@ struct kvm_pinned_page {
 struct kvm_protected_vm {
 	bool enabled;
 	int shadow_handle;
+	struct mutex shadow_lock;
 	struct kvm_hyp_memcache teardown_mc;
 	struct list_head pinned_pages;
 };
diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index efb54331fd6f2..f96f8fa7059ec 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -16,6 +16,8 @@
 
 #define HYP_MEMBLOCK_REGIONS 128
 
+int create_el2_shadow(struct kvm *kvm);
+
 /*
  * Definitions for features to be allowed or restricted for guest virtual
  * machines, depending on the mode KVM is running in and on the type of guest
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 97b40bd1d4295..4ed14cf9ad138 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -774,6 +774,9 @@ int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 		static_branch_inc(&userspace_irqchip_in_use);
 	}
 
+	if (is_protected_kvm_enabled())
+		ret = create_el2_shadow(kvm);
+
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 90d4a15e9cd9e..431b85575dc0f 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -118,16 +118,13 @@ static void update_vcpu_state(struct kvm_vcpu *vcpu, int shadow_handle)
  *
  * Return 0 on success, negative error code on failure.
  */
-static int create_el2_shadow(struct kvm *kvm)
+static int __create_el2_shadow(struct kvm *kvm)
 {
 	size_t pgd_sz, shadow_sz;
 	void *pgd, *shadow_addr;
 	int shadow_handle;
 	int ret, i;
 
-	if (kvm->arch.pkvm.shadow_handle)
-		return -EEXIST;
-
 	if (kvm->created_vcpus < 1)
 		return -EINVAL;
 
@@ -174,20 +171,14 @@ free_pgd:
 	return ret;
 }
 
-int pkvm_init_el2_context(struct kvm *kvm)
+int create_el2_shadow(struct kvm *kvm)
 {
 	int ret = 0;
 
-	mutex_lock(&kvm->lock);
-	ret = create_el2_shadow(kvm);
-	mutex_unlock(&kvm->lock);
-
-	if (ret < 0) {
-		kvm_err("Creating shadow structures for protected VM failed: %d\n",
-			ret);
-		return ret;
-	}
+	mutex_lock(&kvm->arch.pkvm.shadow_lock);
+	if (!kvm->arch.pkvm.shadow_handle)
+		ret = __create_el2_shadow(kvm);
+	mutex_unlock(&kvm->arch.pkvm.shadow_lock);
 
-	kvm_pr_unimpl("Stage-2 protection is a work-in-progress: civilization phase III\n");
-	return 0;
+	return ret;
 }
-- 
GitLab


From cd188a87f223f764390955f8b56088005bb851d5 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Tue, 19 Jan 2021 11:37:56 +0000
Subject: [PATCH 2701/4878] ANDROID: KVM: arm64: Ignore
 'kvm-arm.mode=protected' when using VHE

Ignore 'kvm-arm.mode=protected' when using VHE so that kvm_get_mode()
only returns KVM_MODE_PROTECTED on systems where the feature is available.

Cc: David Brazdil <dbrazdil@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I4854d299f4c5aebe7ed33020ac014b24154fdb52
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 Documentation/admin-guide/kernel-parameters.txt |  1 -
 arch/arm64/kernel/cpufeature.c                  | 10 +---------
 arch/arm64/kvm/arm.c                            |  6 +++++-
 3 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 47213056312cd..013d2ebb8bf23 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2311,7 +2311,6 @@
 
 			protected: nVHE-based mode with support for guests whose
 				   state is kept private from the host.
-				   Not valid if the kernel is running in EL2.
 
 			Defaults to VHE/nVHE based on hardware support. Setting
 			mode to "protected" will disable kexec and hibernation
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index db4aac06d7054..2eaaa3a41e3b1 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1853,15 +1853,7 @@ static void cpu_enable_mte(struct arm64_cpu_capabilities const *cap)
 #ifdef CONFIG_KVM
 static bool is_kvm_protected_mode(const struct arm64_cpu_capabilities *entry, int __unused)
 {
-	if (kvm_get_mode() != KVM_MODE_PROTECTED)
-		return false;
-
-	if (is_kernel_in_hyp_mode()) {
-		pr_warn("Protected KVM not available with VHE\n");
-		return false;
-	}
-
-	return true;
+	return kvm_get_mode() == KVM_MODE_PROTECTED;
 }
 #endif /* CONFIG_KVM */
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 4ed14cf9ad138..dea25222a8359 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -2315,7 +2315,11 @@ static int __init early_kvm_mode_cfg(char *arg)
 		return -EINVAL;
 
 	if (strcmp(arg, "protected") == 0) {
-		kvm_mode = KVM_MODE_PROTECTED;
+		if (!is_kernel_in_hyp_mode())
+			kvm_mode = KVM_MODE_PROTECTED;
+		else
+			pr_warn_once("Protected KVM not available with VHE\n");
+
 		return 0;
 	}
 
-- 
GitLab


From 6e8a01f8d7bcc7b5b4b9c5a96351b54f8ee88e15 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Tue, 19 Jan 2021 12:52:06 +0000
Subject: [PATCH 2702/4878] ANDROID: KVM: arm64: Extend comment in has_vhe()

has_vhe() expands to a compile-time constant when evaluated from the VHE
or nVHE code, alternatively checking a static key when called from
elsewhere in the kernel. On face value, this looks like a case of
premature optimization, but in fact this allows symbol references on
VHE-specific code paths to be dropped from the nVHE object.

Expand the comment in has_vhe() to make this clearer, hopefully
discouraging anybody from simplifying the code.

Cc: David Brazdil <dbrazdil@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: Icce36e192cafa14d388cb1d0a24585b6fcf6e46e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/virt.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index 7379f35ae2c65..3218ca17f819e 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -111,6 +111,9 @@ static __always_inline bool has_vhe(void)
 	/*
 	 * Code only run in VHE/NVHE hyp context can assume VHE is present or
 	 * absent. Otherwise fall back to caps.
+	 * This allows the compiler to discard VHE-specific code from the
+	 * nVHE object, reducing the number of external symbol references
+	 * needed to link.
 	 */
 	if (is_vhe_hyp_code())
 		return true;
-- 
GitLab


From fb01b29bae6a30dc21cd83019ff59d2f38a3bddf Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Tue, 17 Nov 2020 13:05:03 +0000
Subject: [PATCH 2703/4878] ANDROID: BACKPORT: KVM: arm64: Parse
 reserved-memory node for pkvm guest firmware region

Add support for a "linux,pkvm-guest-firmware-memory" reserved memory
region, which can be used to identify a firmware image for protected
VMs. If pKVM fails to initialise and a firmware region is advertised,
then the memory is cleared during boot.

Signed-off-by: Will Deacon <will@kernel.org>
[willdeacon@: Include linux/io.h for memremap() and friends]
Bug: 209580772
Change-Id: Ibfcc0ff00d4b8a42747452047856cb9ba8def4c4
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/pkvm.c | 61 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 431b85575dc0f..670b4cead5c48 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -4,16 +4,21 @@
  * Author: Quentin Perret <qperret@google.com>
  */
 
+#include <linux/io.h>
 #include <linux/kvm_host.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
 #include <linux/mutex.h>
+#include <linux/of_fdt.h>
+#include <linux/of_reserved_mem.h>
 #include <linux/sort.h>
 
 #include <asm/kvm_pkvm.h>
 
 #include "hyp_constants.h"
 
+static struct reserved_mem *pkvm_firmware_mem;
+
 static struct memblock_region *hyp_memory = kvm_nvhe_sym(hyp_memory);
 static unsigned int *hyp_memblock_nr_ptr = &kvm_nvhe_sym(hyp_memblock_nr);
 
@@ -182,3 +187,59 @@ int create_el2_shadow(struct kvm *kvm)
 
 	return ret;
 }
+
+static int __init pkvm_firmware_rmem_err(struct reserved_mem *rmem,
+					 const char *reason)
+{
+	phys_addr_t end = rmem->base + rmem->size;
+
+	kvm_err("Ignoring pkvm guest firmware memory reservation [%pa - %pa]: %s\n",
+		&rmem->base, &end, reason);
+	return -EINVAL;
+}
+
+static int __init pkvm_firmware_rmem_init(struct reserved_mem *rmem)
+{
+	unsigned long node = rmem->fdt_node;
+
+	if (pkvm_firmware_mem)
+		return pkvm_firmware_rmem_err(rmem, "duplicate reservation");
+
+	if (!of_get_flat_dt_prop(node, "no-map", NULL))
+		return pkvm_firmware_rmem_err(rmem, "missing \"no-map\" property");
+
+	if (of_get_flat_dt_prop(node, "reusable", NULL))
+		return pkvm_firmware_rmem_err(rmem, "\"reusable\" property unsupported");
+
+	if (!PAGE_ALIGNED(rmem->base))
+		return pkvm_firmware_rmem_err(rmem, "base is not page-aligned");
+
+	if (!PAGE_ALIGNED(rmem->size))
+		return pkvm_firmware_rmem_err(rmem, "size is not page-aligned");
+
+	pkvm_firmware_mem = rmem;
+	return 0;
+}
+RESERVEDMEM_OF_DECLARE(pkvm_firmware, "linux,pkvm-guest-firmware-memory",
+		       pkvm_firmware_rmem_init);
+
+static int __init pkvm_firmware_rmem_clear(void)
+{
+	void *addr;
+	phys_addr_t size;
+
+	if (likely(!pkvm_firmware_mem) || is_protected_kvm_enabled())
+		return 0;
+
+	kvm_info("Clearing unused pKVM firmware memory\n");
+	size = pkvm_firmware_mem->size;
+	addr = memremap(pkvm_firmware_mem->base, size, MEMREMAP_WB);
+	if (!addr)
+		return -EINVAL;
+
+	memset(addr, 0, size);
+	dcache_clean_poc((unsigned long)addr, (unsigned long)addr + size);
+	memunmap(addr);
+	return 0;
+}
+device_initcall_sync(pkvm_firmware_rmem_clear);
-- 
GitLab


From 9e2ddae4d3c3b283f15f4bc6ad9426d470dc5811 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 9 Dec 2021 11:51:12 +0000
Subject: [PATCH 2704/4878] ANDROID: KVM: arm64: Unmap PVM firmware from host
 stage-2 during de-privilege

Unmap the PVM firmware memory from the pKVM host by transferring
ownership of the pages to the hypervisor when the host deprivileges
itself during boot.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I311642f543c0c73d0e0cf2ec051e8e2d9759c5d1
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pkvm.h |  3 +++
 arch/arm64/kvm/hyp/nvhe/setup.c   | 10 ++++++++++
 arch/arm64/kvm/pkvm.c             |  4 ++++
 3 files changed, 17 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index f96f8fa7059ec..a5a0dca0c633c 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -231,6 +231,9 @@ static inline int pkvm_get_max_wrps(void)
 extern struct memblock_region kvm_nvhe_sym(hyp_memory)[];
 extern unsigned int kvm_nvhe_sym(hyp_memblock_nr);
 
+extern phys_addr_t kvm_nvhe_sym(pvmfw_base);
+extern phys_addr_t kvm_nvhe_sym(pvmfw_size);
+
 static inline unsigned long
 hyp_vmemmap_memblock_size(struct memblock_region *reg, size_t vmemmap_entry_size)
 {
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 3e5099074dae7..3ac3283328483 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -21,6 +21,9 @@
 
 unsigned long hyp_nr_cpus;
 
+phys_addr_t pvmfw_base;
+phys_addr_t pvmfw_size;
+
 #define hyp_percpu_size ((unsigned long)__per_cpu_end - \
 			 (unsigned long)__per_cpu_start)
 
@@ -135,6 +138,13 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
 	if (ret)
 		return ret;
 
+	start = hyp_phys_to_virt(pvmfw_base);
+	end = start + pvmfw_size;
+	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_OWNED);
+	ret = pkvm_create_mappings(start, end, prot);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 670b4cead5c48..273d288ffdd7a 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -18,6 +18,8 @@
 #include "hyp_constants.h"
 
 static struct reserved_mem *pkvm_firmware_mem;
+static phys_addr_t *pvmfw_base = &kvm_nvhe_sym(pvmfw_base);
+static phys_addr_t *pvmfw_size = &kvm_nvhe_sym(pvmfw_size);
 
 static struct memblock_region *hyp_memory = kvm_nvhe_sym(hyp_memory);
 static unsigned int *hyp_memblock_nr_ptr = &kvm_nvhe_sym(hyp_memblock_nr);
@@ -217,6 +219,8 @@ static int __init pkvm_firmware_rmem_init(struct reserved_mem *rmem)
 	if (!PAGE_ALIGNED(rmem->size))
 		return pkvm_firmware_rmem_err(rmem, "size is not page-aligned");
 
+	*pvmfw_size = rmem->size;
+	*pvmfw_base = rmem->base;
 	pkvm_firmware_mem = rmem;
 	return 0;
 }
-- 
GitLab


From adee75e0a40a50217166e3e28f8961e738d8ed91 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 9 Dec 2021 11:59:38 +0000
Subject: [PATCH 2705/4878] ANDROID: KVM: arm64: Copy pvmfw into guest pages
 during donation from the host

When the host donates a page to a protected guest at an IPA which
coincides with the PVM firmware load address, copy-in the relevant
firmware page after unmapping it from the host but before mapping it
into the guest.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I8cec813fa52938945f3122655deb785523a96ec8
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h      |  1 +
 arch/arm64/include/asm/kvm_pkvm.h      |  1 +
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h | 21 ++++++++++++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c  | 12 ++++++--
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 38 ++++++++++++++++++++++++++
 5 files changed, 71 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index c17aee87de91c..be6e9fa4c74a7 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -167,6 +167,7 @@ struct kvm_protected_vm {
 	struct mutex shadow_lock;
 	struct kvm_hyp_memcache teardown_mc;
 	struct list_head pinned_pages;
+	gpa_t pvmfw_load_addr;
 };
 
 struct kvm_arch {
diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index a5a0dca0c633c..2043518e2bdee 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -15,6 +15,7 @@
 #define KVM_MAX_PVMS 255
 
 #define HYP_MEMBLOCK_REGIONS 128
+#define PVMFW_INVALID_LOAD_ADDR	(-1)
 
 int create_el2_shadow(struct kvm *kvm);
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index bdaacd70b9fed..b96c46bd17264 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -51,6 +51,9 @@ struct kvm_shadow_vm {
 
 extern struct kvm_shadow_vm **shadow_table;
 
+extern phys_addr_t pvmfw_base;
+extern phys_addr_t pvmfw_size;
+
 int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size, void *pgd);
 int __pkvm_teardown_shadow(struct kvm *kvm);
 struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx);
@@ -68,4 +71,22 @@ bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code);
 
 struct kvm_vcpu *pvm_mpidr_to_vcpu(struct kvm_shadow_vm *vm, unsigned long mpidr);
 
+static inline bool pvm_has_pvmfw(struct kvm_shadow_vm *vm)
+{
+	return vm->arch.pkvm.pvmfw_load_addr != PVMFW_INVALID_LOAD_ADDR;
+}
+
+static inline bool ipa_in_pvmfw_region(struct kvm_shadow_vm *vm, u64 ipa)
+{
+	struct kvm_protected_vm *pkvm = &vm->arch.pkvm;
+
+	if (!pvm_has_pvmfw(vm))
+		return false;
+
+	return ipa - pkvm->pvmfw_load_addr < pvmfw_size;
+}
+
+int pkvm_load_pvmfw_pages(struct kvm_shadow_vm *vm, u64 ipa, phys_addr_t phys,
+			  u64 size);
+
 #endif /* __ARM64_KVM_NVHE_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 4baf271b7c517..5c22195e776f7 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -1060,10 +1060,18 @@ static int guest_complete_donation(u64 addr, const struct pkvm_mem_transition *t
 	enum kvm_pgtable_prot prot = pkvm_mkstate(KVM_PGTABLE_PROT_RWX, PKVM_PAGE_OWNED);
 	struct kvm_vcpu *vcpu = tx->completer.guest.vcpu;
 	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	phys_addr_t phys = tx->completer.guest.phys;
 	u64 size = tx->nr_pages * PAGE_SIZE;
+	int err;
 
-	return kvm_pgtable_stage2_map(&vm->pgt, addr, size, tx->completer.guest.phys,
-				      prot, &vcpu->arch.pkvm_memcache);
+	if (tx->initiator.id == PKVM_ID_HOST && ipa_in_pvmfw_region(vm, addr)) {
+		err = pkvm_load_pvmfw_pages(vm, addr, phys, size);
+		if (err)
+			return err;
+	}
+
+	return kvm_pgtable_stage2_map(&vm->pgt, addr, size, phys, prot,
+				      &vcpu->arch.pkvm_memcache);
 }
 
 static int __guest_get_completer_addr(u64 *completer_addr, phys_addr_t phys,
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 811cb17841dd2..8d6b4a9c064c0 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -356,6 +356,7 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 
 	vm->host_kvm = kvm;
 	vm->created_vcpus = 0;
+	vm->arch.pkvm.pvmfw_load_addr = PVMFW_INVALID_LOAD_ADDR;
 
 	for (i = 0; i < nr_vcpus; i++) {
 		struct kvm_vcpu *host_vcpu = kern_hyp_va(kvm->vcpus[i]);
@@ -653,6 +654,43 @@ err_unlock:
 	return err;
 }
 
+int pkvm_load_pvmfw_pages(struct kvm_shadow_vm *vm, u64 ipa, phys_addr_t phys,
+			  u64 size)
+{
+	struct kvm_protected_vm *pkvm = &vm->arch.pkvm;
+	u64 npages, offset = ipa - pkvm->pvmfw_load_addr;
+	void *src = hyp_phys_to_virt(pvmfw_base) + offset;
+
+	if (offset >= pvmfw_size)
+		return -EINVAL;
+
+	size = min(size, pvmfw_size - offset);
+	if (!PAGE_ALIGNED(size) || !PAGE_ALIGNED(src))
+		return -EINVAL;
+
+	npages = size >> PAGE_SHIFT;
+	while (npages--) {
+		void *dst;
+
+		dst = hyp_fixmap_map(phys);
+		if (!dst)
+			return -EINVAL;
+
+		/*
+		 * No need for cache maintenance here, as the pgtable code will
+		 * take care of this when installing the pte in the guest's
+		 * stage-2 page table.
+		 */
+		memcpy(dst, src, PAGE_SIZE);
+
+		hyp_fixmap_unmap();
+		src += PAGE_SIZE;
+		phys += PAGE_SIZE;
+	}
+
+	return 0;
+}
+
 /*
  * This function sets the registers on the vcpu to their architecturally defined
  * reset values.
-- 
GitLab


From 0ba692e7afbf7f9ef5865e9dd2eeaa3fadd9665e Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 9 Dec 2021 12:46:14 +0000
Subject: [PATCH 2706/4878] ANDROID: KVM: arm64: Reset primary vCPU according
 to PVM firmware boot protocol

When a PVM firmware image is present for a protected VM, treat the first
running vCPU as the "primary" vCPU and reset its registers accordingly,
in particular by initialising its PC to enter the firmware at startup.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I26676637145c7d809c5dc5ac0ad0e1fadaf275d2
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |  3 +++
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 30 ++++++++++++++++++++++++--
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index b96c46bd17264..8024006a32adc 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -33,6 +33,9 @@ struct kvm_shadow_vm {
 	/* Pointers to the shadow vcpus of the shadow vm. */
 	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
 
+	/* Primary vCPU pending entry to the pvmfw */
+	struct kvm_vcpu *pvmfw_entry_vcpu;
+
 	/* The host's kvm structure. */
 	struct kvm *host_kvm;
 
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 8d6b4a9c064c0..9958251579960 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -391,6 +391,13 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 
 		if (test_bit(KVM_ARM_VCPU_POWER_OFF, shadow_vcpu->arch.features)) {
 			shadow_vcpu->arch.pkvm.power_state = PSCI_0_2_AFFINITY_LEVEL_OFF;
+		} else if (pvm_has_pvmfw(vm)) {
+			if (vm->pvmfw_entry_vcpu)
+				return -EINVAL;
+
+			vm->pvmfw_entry_vcpu = shadow_vcpu;
+			shadow_vcpu->arch.reset_state.reset = true;
+			shadow_vcpu->arch.pkvm.power_state = PSCI_0_2_AFFINITY_LEVEL_ON_PENDING;
 		} else {
 			struct vcpu_reset_state *reset_state = &shadow_vcpu->arch.reset_state;
 
@@ -700,6 +707,7 @@ int pkvm_load_pvmfw_pages(struct kvm_shadow_vm *vm, u64 ipa, phys_addr_t phys,
 void pkvm_reset_vcpu(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_reset_state *reset_state = &vcpu->arch.reset_state;
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
 
 	WARN_ON(!reset_state->reset);
 
@@ -724,8 +732,26 @@ void pkvm_reset_vcpu(struct kvm_vcpu *vcpu)
 	if (reset_state->be)
 		kvm_vcpu_set_be(vcpu);
 
-	*vcpu_pc(vcpu) = reset_state->pc;
-	vcpu_set_reg(vcpu, 0, reset_state->r0);
+	if (vm->pvmfw_entry_vcpu == vcpu) {
+		struct kvm_vcpu *host_vcpu = vcpu->arch.pkvm.host_vcpu;
+		u64 entry = vm->arch.pkvm.pvmfw_load_addr;
+		int i;
+
+		/* X0 - X14 provided by the VMM (preserved) */
+		for (i = 0; i <= 14; ++i)
+			vcpu_set_reg(vcpu, i, vcpu_get_reg(host_vcpu, i));
+
+		/* X15: Boot protocol version */
+		vcpu_set_reg(vcpu, 15, 0);
+
+		/* PC: IPA of pvmfw base */
+		*vcpu_pc(vcpu) = entry;
+
+		vm->pvmfw_entry_vcpu = NULL;
+	} else {
+		*vcpu_pc(vcpu) = reset_state->pc;
+		vcpu_set_reg(vcpu, 0, reset_state->r0);
+	}
 
 	reset_state->reset = false;
 
-- 
GitLab


From 20e053c8910505a5f0ac7ea7abb4f09bd029cca2 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 9 Dec 2021 13:14:00 +0000
Subject: [PATCH 2707/4878] ANDROID: BACKPORT: KVM: arm64: Introduce
 KVM_VM_TYPE_ARM_PROTECTED machine type for PVMs

Introduce a new virtual machine type, KVM_VM_TYPE_ARM_PROTECTED, which
specifies that the guest memory pages are to be unmapped from the host
stage-2 by the hypervisor.

Signed-off-by: Will Deacon <will@kernel.org>
[willdeacon@: Changed UAPI constants to reduce change of upstream collisions]
Bug: 209580772
Change-Id: I9de1ad96fec4f62434a81101749435f8b0596162
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h |  5 +----
 arch/arm64/include/asm/kvm_pkvm.h |  1 +
 arch/arm64/kvm/arm.c              |  7 +++++++
 arch/arm64/kvm/mmu.c              |  3 ---
 arch/arm64/kvm/pkvm.c             | 15 +++++++++++++++
 include/uapi/linux/kvm.h          |  7 +++++++
 6 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index be6e9fa4c74a7..4432b69f72300 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -913,10 +913,7 @@ int kvm_set_ipa_limit(void);
 struct kvm *kvm_arch_alloc_vm(void);
 void kvm_arch_free_vm(struct kvm *kvm);
 
-static inline bool kvm_vm_is_protected(struct kvm *kvm)
-{
-	return false;
-}
+#define kvm_vm_is_protected(kvm)	((kvm)->arch.pkvm.enabled)
 
 void kvm_init_protected_traps(struct kvm_vcpu *vcpu);
 
diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 2043518e2bdee..b46ea822225b6 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -17,6 +17,7 @@
 #define HYP_MEMBLOCK_REGIONS 128
 #define PVMFW_INVALID_LOAD_ADDR	(-1)
 
+int kvm_init_pvm(struct kvm *kvm, unsigned long type);
 int create_el2_shadow(struct kvm *kvm);
 
 /*
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index dea25222a8359..642ee5daa453b 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -155,10 +155,17 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 {
 	int ret;
 
+	if (type & ~KVM_VM_TYPE_MASK)
+		return -EINVAL;
+
 	ret = kvm_share_hyp(kvm, kvm + 1);
 	if (ret)
 		return ret;
 
+	ret = kvm_init_pvm(kvm, type);
+	if (ret)
+		return ret;
+
 	ret = kvm_init_stage2_mmu(kvm, &kvm->arch.mmu, type);
 	if (ret)
 		return ret;
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 1fd370eaea4fa..0a0459e986a9a 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -632,9 +632,6 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long t
 	u64 mmfr0, mmfr1;
 	u32 phys_shift;
 
-	if (type & ~KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
-		return -EINVAL;
-
 	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
 	if (is_protected_kvm_enabled()) {
 		phys_shift = kvm_ipa_limit;
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 273d288ffdd7a..e68085e3cb924 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -247,3 +247,18 @@ static int __init pkvm_firmware_rmem_clear(void)
 	return 0;
 }
 device_initcall_sync(pkvm_firmware_rmem_clear);
+
+int kvm_init_pvm(struct kvm *kvm, unsigned long type)
+{
+	mutex_init(&kvm->arch.pkvm.shadow_lock);
+	kvm->arch.pkvm.pvmfw_load_addr = PVMFW_INVALID_LOAD_ADDR;
+
+	if (!(type & KVM_VM_TYPE_ARM_PROTECTED))
+		return 0;
+
+	if (!is_protected_kvm_enabled())
+		return -EINVAL;
+
+	kvm->arch.pkvm.enabled = true;
+	return 0;
+}
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 015e39488e36e..2380257670457 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -819,6 +819,12 @@ struct kvm_ppc_resize_hpt {
 #define KVM_VM_TYPE_ARM_IPA_SIZE_MASK	0xffULL
 #define KVM_VM_TYPE_ARM_IPA_SIZE(x)		\
 	((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
+
+#define KVM_VM_TYPE_ARM_PROTECTED	(1UL << 31)
+
+#define KVM_VM_TYPE_MASK	(KVM_VM_TYPE_ARM_IPA_SIZE_MASK | \
+				 KVM_VM_TYPE_ARM_PROTECTED)
+
 /*
  * ioctls for /dev/kvm fds:
  */
@@ -1074,6 +1080,7 @@ struct kvm_ppc_resize_hpt {
 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
 */
 #define KVM_CAP_ARM_MTE 205
+#define KVM_CAP_ARM_PROTECTED_VM 0xffbadab1
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
GitLab


From 6f48cee5aac375bb3bda6b24e4399d6a2ed32ca5 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Thu, 9 Dec 2021 13:15:41 +0000
Subject: [PATCH 2708/4878] ANDROID: KVM: arm64: Introduce
 KVM_CAP_ARM_PROTECTED_VM to set/query PVM firmware

Expose a new capability, KVM_CAP_ARM_PROTECTED_VM, for protected VMs
which allows the size of the PVM firmware region to be discovered from
userspace and for the firmware load address to be specified if it is
required.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I819b9b2cfa227f1a0607a8f683aa01d4ae50704f
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_pkvm.h |  1 +
 arch/arm64/include/uapi/asm/kvm.h |  9 ++++++
 arch/arm64/kvm/arm.c              | 17 +++++++----
 arch/arm64/kvm/hyp/nvhe/pkvm.c    |  2 +-
 arch/arm64/kvm/pkvm.c             | 48 +++++++++++++++++++++++++++++++
 5 files changed, 71 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index b46ea822225b6..447f852f2b2d2 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -17,6 +17,7 @@
 #define HYP_MEMBLOCK_REGIONS 128
 #define PVMFW_INVALID_LOAD_ADDR	(-1)
 
+int kvm_arm_vm_ioctl_pkvm(struct kvm *kvm, struct kvm_enable_cap *cap);
 int kvm_init_pvm(struct kvm *kvm, unsigned long type);
 int create_el2_shadow(struct kvm *kvm);
 
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index b3edde68bc3e0..aebd2fa75f124 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -413,6 +413,15 @@ struct kvm_arm_copy_mte_tags {
 #define KVM_PSCI_RET_INVAL		PSCI_RET_INVALID_PARAMS
 #define KVM_PSCI_RET_DENIED		PSCI_RET_DENIED
 
+/* Protected KVM */
+#define KVM_CAP_ARM_PROTECTED_VM_FLAGS_SET_FW_IPA	0
+#define KVM_CAP_ARM_PROTECTED_VM_FLAGS_INFO		1
+
+struct kvm_protected_vm_info {
+	__u64 firmware_size;
+	__u64 __reserved[7];
+};
+
 #endif
 
 #endif /* __ARM_KVM_H__ */
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 642ee5daa453b..691664d61d65b 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -87,9 +87,16 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 {
 	int r;
 
-	if (cap->flags)
-		return -EINVAL;
+	/* Capabilities with flags */
+	switch (cap->cap) {
+	case KVM_CAP_ARM_PROTECTED_VM:
+		return kvm_arm_vm_ioctl_pkvm(kvm, cap);
+	default:
+		if (cap->flags)
+			return -EINVAL;
+	}
 
+	/* Capabilities without flags */
 	switch (cap->cap) {
 	case KVM_CAP_ARM_NISV_TO_USER:
 		r = 0;
@@ -106,9 +113,6 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 		mutex_unlock(&kvm->lock);
 		break;
 	case KVM_CAP_EXIT_HYPERCALL:
-		if (cap->flags)
-			return -EINVAL;
-
 		if (cap->args[0] & ~KVM_EXIT_HYPERCALL_VALID_MASK)
 			return -EINVAL;
 
@@ -387,6 +391,9 @@ static int pkvm_check_extension(struct kvm *kvm, long ext, int kvm_cap)
 		    FIELD_GET(ARM64_FEATURE_MASK(ID_AA64ISAR1_GPA),
 			      PVM_ID_AA64ISAR1_ALLOW);
 		break;
+	case KVM_CAP_ARM_PROTECTED_VM:
+		r = 1;
+		break;
 	default:
 		r = 0;
 		break;
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 9958251579960..d7d3155b039fc 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -356,7 +356,7 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 
 	vm->host_kvm = kvm;
 	vm->created_vcpus = 0;
-	vm->arch.pkvm.pvmfw_load_addr = PVMFW_INVALID_LOAD_ADDR;
+	vm->arch.pkvm.pvmfw_load_addr = kvm->arch.pkvm.pvmfw_load_addr;
 
 	for (i = 0; i < nr_vcpus; i++) {
 		struct kvm_vcpu *host_vcpu = kern_hyp_va(kvm->vcpus[i]);
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index e68085e3cb924..c5c18943cb1b3 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -248,6 +248,54 @@ static int __init pkvm_firmware_rmem_clear(void)
 }
 device_initcall_sync(pkvm_firmware_rmem_clear);
 
+static int pkvm_vm_ioctl_set_fw_ipa(struct kvm *kvm, u64 ipa)
+{
+	int ret = 0;
+
+	if (!pkvm_firmware_mem)
+		return -EINVAL;
+
+	mutex_lock(&kvm->arch.pkvm.shadow_lock);
+	if (kvm->arch.pkvm.shadow_handle) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
+
+	kvm->arch.pkvm.pvmfw_load_addr = ipa;
+out_unlock:
+	mutex_unlock(&kvm->arch.pkvm.shadow_lock);
+	return ret;
+}
+
+static int pkvm_vm_ioctl_info(struct kvm *kvm,
+			      struct kvm_protected_vm_info __user *info)
+{
+	struct kvm_protected_vm_info kinfo = {
+		.firmware_size = pkvm_firmware_mem ?
+				 pkvm_firmware_mem->size :
+				 0,
+	};
+
+	return copy_to_user(info, &kinfo, sizeof(kinfo)) ? -EFAULT : 0;
+}
+
+int kvm_arm_vm_ioctl_pkvm(struct kvm *kvm, struct kvm_enable_cap *cap)
+{
+	if (cap->args[1] || cap->args[2] || cap->args[3])
+		return -EINVAL;
+
+	switch (cap->flags) {
+	case KVM_CAP_ARM_PROTECTED_VM_FLAGS_SET_FW_IPA:
+		return pkvm_vm_ioctl_set_fw_ipa(kvm, cap->args[0]);
+	case KVM_CAP_ARM_PROTECTED_VM_FLAGS_INFO:
+		return pkvm_vm_ioctl_info(kvm, (void __force __user *)cap->args[0]);
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 int kvm_init_pvm(struct kvm *kvm, unsigned long type)
 {
 	mutex_init(&kvm->arch.pkvm.shadow_lock);
-- 
GitLab


From 24ccade039d9b48880739dbce9a48e3c73571117 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Tue, 23 Nov 2021 16:20:12 +0000
Subject: [PATCH 2709/4878] ANDROID: KVM: arm64: pkvm: Move memcache topup into
 a helper

Move the vcpu memcache topup into its own helper, as we will
eventually need it for the MMIO guard page table updates
(which uses the exact same mechanism).

No functionnal change.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I72bac5e8be91acbb696a1428fc5cc6cc84d2df66
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 7d61b5fad4a4c..51104a7e6b364 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -39,6 +39,16 @@ static void handle_pvm_entry_wfx(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *sh
 	shadow_vcpu->arch.flags |= host_vcpu->arch.flags & KVM_ARM64_INCREMENT_PC;
 }
 
+static int pkvm_refill_memcache(struct kvm_vcpu *shadow_vcpu,
+				struct kvm_vcpu *host_vcpu)
+{
+	u64 nr_pages;
+
+	nr_pages = VTCR_EL2_LVLS(shadow_vcpu->arch.pkvm.shadow_vm->arch.vtcr) - 1;
+	return refill_memcache(&shadow_vcpu->arch.pkvm_memcache, nr_pages,
+			       &host_vcpu->arch.pkvm_memcache);
+}
+
 static void handle_pvm_entry_psci(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
 	u32 psci_fn = smccc_get_function(shadow_vcpu);
@@ -601,7 +611,6 @@ static void handle___pkvm_host_donate_guest(struct kvm_cpu_context *host_ctxt)
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 3);
 	struct pkvm_loaded_state *state;
 	int ret = -EINVAL;
-	u64 nr_pages;
 
 	if (!is_protected_kvm_enabled())
 		goto out;
@@ -612,9 +621,7 @@ static void handle___pkvm_host_donate_guest(struct kvm_cpu_context *host_ctxt)
 		goto out;
 
 	/* Topup shadow memcache with the host's */
-	nr_pages = VTCR_EL2_LVLS(state->vcpu->arch.pkvm.shadow_vm->arch.vtcr) - 1;
-	ret = refill_memcache(&state->vcpu->arch.pkvm_memcache, nr_pages,
-			      &vcpu->arch.pkvm_memcache);
+	ret = pkvm_refill_memcache(state->vcpu, vcpu);
 	if (!ret)
 		ret = __pkvm_host_donate_guest(pfn, gfn, state->vcpu);
 out:
-- 
GitLab


From 8273903998cf1899539b672eb1cc762f51630056 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 24 Nov 2021 09:49:07 +0000
Subject: [PATCH 2710/4878] ANDROID: KVM: arm64: pkvm: Rerge get_num_hvc_args
 into handle_pvm_exit_hvc64

There really isn't much point in keeping these separate.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I78b5c2d33bd4178415d51b2bccabfb5a7590d2c2
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 33 ++++++++++++++----------------
 1 file changed, 15 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 51104a7e6b364..c475b68776311 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -251,11 +251,11 @@ static void handle_pvm_exit_sys64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *s
 	}
 }
 
-static int get_num_hvc_args(struct kvm_vcpu *vcpu)
+static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	u32 psci_fn = smccc_get_function(vcpu);
+	int n, i;
 
-	switch (psci_fn) {
+	switch (smccc_get_function(shadow_vcpu)) {
 	/*
 	 * CPU_ON takes 3 arguments, however, to wake up the target vcpu the
 	 * host only needs to know the target's cpu_id, which is passed as the
@@ -263,37 +263,34 @@ static int get_num_hvc_args(struct kvm_vcpu *vcpu)
 	 */
 	case PSCI_0_2_FN_CPU_ON:
 	case PSCI_0_2_FN64_CPU_ON:
-		return 1;
+		n = 2;
+		break;
 
 	case PSCI_0_2_FN_CPU_OFF:
 	case PSCI_0_2_FN_SYSTEM_OFF:
-
-	/* The KVM implementation of suspend doesn't use any arguments. */
 	case PSCI_0_2_FN_CPU_SUSPEND:
 	case PSCI_0_2_FN64_CPU_SUSPEND:
-		return 0;
+		n = 1;
+		break;
 
 	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
 		fallthrough;
 	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
-		return 3;
+		n = 4;
+		break;
 
-	/* The rest are either blocked or handled by hyp. */
+	/*
+	 * The rest are either blocked or handled by HYP, so we should
+	 * really never be here.
+	 */
 	default:
-		return -1;
+		BUG();
 	}
 
-	return -1;
-}
-
-static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
-{
-	int i;
-
 	host_vcpu->arch.fault.esr_el2 = shadow_vcpu->arch.fault.esr_el2;
 
 	/* Pass the hvc function id (r0) as well as any potential arguments. */
-	for (i = 0; i < get_num_hvc_args(shadow_vcpu) + 1; i++)
+	for (i = 0; i < n; i++)
 		vcpu_set_reg(host_vcpu, i, vcpu_get_reg(shadow_vcpu, i));
 }
 
-- 
GitLab


From 8598c42c281dba1d253393ea34f15497c00b7e19 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 2 Dec 2021 14:56:00 +0000
Subject: [PATCH 2711/4878] ANDROID: KVM: arm64: pkvm: Store vcpus in donated
 PGD at shadow-creation time

As KVM is moving to using an xarray to hold the vcpus instead of
the fixed size array that has been the norm so far, we are faced
with two options: either teach the EL2 code to parse an xarray
when building the shadow structures, or find an alternative way
of communicating the vcpus to the EL2 code.

An easy way to deal with the second approach is to use the page
that EL1 donates to HYP to hold the VM S2 PDG. Instead of just
giving the memory, let's copy the pointers to the vcpus in this
page. The overhead is acceptable (it happens only at VM creation
time), and in most cases we only have a handful of vcpus.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Id0264f0960821563c4b3c0dfcbc43598b85a1f3b
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 12 ++----------
 arch/arm64/kvm/hyp/nvhe/pkvm.c        | 20 +++++++++++++++-----
 arch/arm64/kvm/pkvm.c                 |  8 ++++++++
 3 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 5c22195e776f7..6025f18c910a3 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -249,15 +249,11 @@ int kvm_guest_prepare_stage2(struct kvm_shadow_vm *vm, void *pgd)
 	unsigned long nr_pages;
 	int ret;
 
-	vm->arch.vtcr = host_kvm.arch.vtcr;
 	nr_pages = kvm_pgtable_stage2_pgd_size(vm->arch.vtcr) >> PAGE_SHIFT;
-	ret = __pkvm_host_donate_hyp(hyp_virt_to_pfn(pgd), nr_pages);
-	if (ret)
-		return ret;
 
 	ret = hyp_pool_init(&vm->pool, hyp_virt_to_pfn(pgd), nr_pages, 0);
 	if (ret)
-		goto err;
+		return ret;
 
 	hyp_spin_lock_init(&vm->lock);
 	vm->mm_ops = (struct kvm_pgtable_mm_ops) {
@@ -278,15 +274,11 @@ int kvm_guest_prepare_stage2(struct kvm_shadow_vm *vm, void *pgd)
 					guest_stage2_force_pte_cb);
 	__guest_unlock(vm);
 	if (ret)
-		goto err;
+		return ret;
 
 	vm->arch.mmu.pgd_phys = __hyp_pa(vm->pgt.pgd);
 
 	return 0;
-
-err:
-	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), nr_pages));
-	return ret;
 }
 
 static int reclaim_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index d7d3155b039fc..a7f14e2df6e5d 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -349,7 +349,8 @@ static void unpin_host_vcpus(struct kvm_shadow_vm *vm)
 	}
 }
 
-static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr_vcpus)
+static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
+			       struct kvm_vcpu **vcpu_array, int nr_vcpus)
 {
 	int i;
 	int ret;
@@ -359,7 +360,7 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm, int nr
 	vm->arch.pkvm.pvmfw_load_addr = kvm->arch.pkvm.pvmfw_load_addr;
 
 	for (i = 0; i < nr_vcpus; i++) {
-		struct kvm_vcpu *host_vcpu = kern_hyp_va(kvm->vcpus[i]);
+		struct kvm_vcpu *host_vcpu = kern_hyp_va(vcpu_array[i]);
 		struct shadow_vcpu_state *shadow_state = &vm->shadow_vcpus[i];
 		struct kvm_vcpu *shadow_vcpu = &shadow_state->vcpu;
 
@@ -553,10 +554,12 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	phys_addr_t shadow_pa = hyp_virt_to_phys(vm);
 	u64 pfn = hyp_phys_to_pfn(shadow_pa);
 	u64 nr_pages = shadow_size >> PAGE_SHIFT;
+	u64 pgd_size;
 	int nr_vcpus = 0;
 	int ret = 0;
 
 	kvm = kern_hyp_va(kvm);
+	pgd = kern_hyp_va(pgd);
 
 	ret = hyp_pin_shared_mem(kvm, kvm + 1);
 	if (ret)
@@ -574,17 +577,21 @@ int __pkvm_init_shadow(struct kvm *kvm,
 
 	/* Ensure we're working with a clean slate. */
 	memset(vm, 0, shadow_size);
+	vm->arch.vtcr = host_kvm.arch.vtcr;
+	pgd_size = kvm_pgtable_stage2_pgd_size(vm->arch.vtcr) >> PAGE_SHIFT;
+	ret =  __pkvm_host_donate_hyp(hyp_virt_to_pfn(pgd), pgd_size);
+	if (ret)
+		goto err_remove_mappings;
 
 	/* Add the entry to the shadow table. */
 	ret = insert_shadow_table(kvm, vm, shadow_size);
 	if (ret < 0)
-		goto err_remove_mappings;
+		goto err_remove_pgd;
 
-	ret = init_shadow_structs(kvm, vm, nr_vcpus);
+	ret = init_shadow_structs(kvm, vm, pgd, nr_vcpus);
 	if (ret < 0)
 		goto err_remove_shadow_table;
 
-	pgd = kern_hyp_va(pgd);
 	ret = kvm_guest_prepare_stage2(vm, pgd);
 	if (ret)
 		goto err_remove_shadow_table;
@@ -594,6 +601,9 @@ int __pkvm_init_shadow(struct kvm *kvm,
 err_remove_shadow_table:
 	remove_shadow_table(vm->shadow_handle);
 
+err_remove_pgd:
+	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), pgd_size));
+
 err_remove_mappings:
 	unpin_host_vcpus(vm);
 	/* Clear the donated shadow memory on failure to avoid data leaks. */
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index c5c18943cb1b3..6a73ddab8a888 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -127,8 +127,10 @@ static void update_vcpu_state(struct kvm_vcpu *vcpu, int shadow_handle)
  */
 static int __create_el2_shadow(struct kvm *kvm)
 {
+	struct kvm_vcpu *vcpu, **vcpu_array;
 	size_t pgd_sz, shadow_sz;
 	void *pgd, *shadow_addr;
+	unsigned long idx;
 	int shadow_handle;
 	int ret, i;
 
@@ -154,6 +156,12 @@ static int __create_el2_shadow(struct kvm *kvm)
 		goto free_pgd;
 	}
 
+	/* Stash the vcpu pointers into the PGD */
+	BUILD_BUG_ON(KVM_MAX_VCPUS > (PAGE_SIZE / sizeof(u64)));
+	vcpu_array = pgd;
+	kvm_for_each_vcpu(idx, vcpu, kvm)
+		vcpu_array[idx] = vcpu;
+
 	/* Donate the shadow memory to hyp and let hyp initialize it. */
 	ret = kvm_call_hyp_nvhe(__pkvm_init_shadow, kvm, shadow_addr, shadow_sz,
 				pgd);
-- 
GitLab


From c496a488559bdf863d92b2c020c6af41bff31215 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:43:16 +0000
Subject: [PATCH 2712/4878] ANDROID: KVM: arm64: pkvm: Update the shadow view
 of pkvm.enabled at creation time

As we can't really rely on the host side for the protection status,
snapshot the expected status at VM creation time.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I0943eadba25e6c9fe718f29e749b9fcc8fbb79ba
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index a7f14e2df6e5d..a3e53009696a0 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -358,6 +358,7 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
 	vm->host_kvm = kvm;
 	vm->created_vcpus = 0;
 	vm->arch.pkvm.pvmfw_load_addr = kvm->arch.pkvm.pvmfw_load_addr;
+	vm->arch.pkvm.enabled = READ_ONCE(kvm->arch.pkvm.enabled);
 
 	for (i = 0; i < nr_vcpus; i++) {
 		struct kvm_vcpu *host_vcpu = kern_hyp_va(vcpu_array[i]);
-- 
GitLab


From c0dc717dcac24f3dd1358773257401fee0ce1dec Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 16:01:21 +0000
Subject: [PATCH 2713/4878] ANDROID: KVM: arm64: Introduce vcpu_is_protected()
 helper

Instead of poking into the internals of the host KVM structure,
stick to the shadow structures when trying to work out whether
a vcpu is part of a protected VM or not.

Take this opportunity to sprinkle a couple of unlikely(), just
because.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I22a096e1e3cfe34cd2658684b02d8bac486416c4
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h | 8 ++++++++
 arch/arm64/kvm/hyp/nvhe/switch.c       | 6 ++----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 8024006a32adc..ddb64ba46aa41 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -52,6 +52,14 @@ struct kvm_shadow_vm {
 	struct shadow_vcpu_state shadow_vcpus[0];
 };
 
+static inline bool vcpu_is_protected(struct kvm_vcpu *vcpu)
+{
+	if (!is_protected_kvm_enabled())
+		return false;
+
+	return vcpu->arch.pkvm.shadow_vm->arch.pkvm.enabled;
+}
+
 extern struct kvm_shadow_vm **shadow_table;
 
 extern phys_addr_t pvmfw_base;
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c
index 8d18560ee015a..87338775288cd 100644
--- a/arch/arm64/kvm/hyp/nvhe/switch.c
+++ b/arch/arm64/kvm/hyp/nvhe/switch.c
@@ -216,7 +216,7 @@ static const exit_handler_fn pvm_exit_handlers[] = {
 
 static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
 {
-	if (unlikely(kvm_vm_is_protected(kern_hyp_va(vcpu->kvm))))
+	if (unlikely(vcpu_is_protected(vcpu)))
 		return pvm_exit_handlers;
 
 	return hyp_exit_handlers;
@@ -235,9 +235,7 @@ static const exit_handler_fn *kvm_get_exit_handler_array(struct kvm_vcpu *vcpu)
  */
 static void early_exit_filter(struct kvm_vcpu *vcpu, u64 *exit_code)
 {
-	struct kvm *kvm = kern_hyp_va(vcpu->kvm);
-
-	if (kvm_vm_is_protected(kvm) && vcpu_mode_is_32bit(vcpu)) {
+	if (unlikely(vcpu_is_protected(vcpu) && vcpu_mode_is_32bit(vcpu))) {
 		/*
 		 * As we have caught the guest red-handed, decide that it isn't
 		 * fit for purpose anymore by making the vcpu invalid. The VMM
-- 
GitLab


From 5106d405c6b2f8b9bad48c1d482ba77990d34f0d Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 16:14:18 +0000
Subject: [PATCH 2714/4878] ANDROID: KVM: arm64: Generate hyp-constants.o as an
 nVHE object

A number of KVM definitions are keyd on _KVM_NVHE_HYPERVISOR__
being defined or not. Make sure we advertise this #define when
compiling hyp-constants.o, so that we get the right stuff.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Ied191c0a18274258cffede72b06b0fb5bba5604e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index be1544906e909..42ecb28943e7f 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -32,7 +32,7 @@ define rule_gen_hyp_constants
 	$(call filechk,offsets,__HYP_CONSTANTS_H__)
 endef
 
-CFLAGS_hyp-constants.o = -I $(srctree)/$(src)/hyp/include
+CFLAGS_hyp-constants.o = -I $(srctree)/$(src)/hyp/include -D__KVM_NVHE_HYPERVISOR__=1
 $(obj)/hyp-constants.s: $(src)/hyp/hyp-constants.c FORCE
 	$(call if_changed_dep,cc_s_c)
 
-- 
GitLab


From 4262892c410b57dc3828af93c3c803b80279f993 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 17:24:25 +0000
Subject: [PATCH 2715/4878] ANDROID: KVM: arm64: pkvm: Replace
 pkvm_loaded_state.is_shadow with is_protected

When pKVM is enabled, all the vcpus must have a shadow structure
managed by the hypervisor, irrespective of theur protection status.

This field thus represents the wrong abstraction. Replace it with
'pkvm_loaded_state.is_protected', which tracks whether a vcpu is
part of a protected VM.

pkvm_loaded_state gets also moved around for convenience with the
following patches.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Ic9876fde543abb350fe8969d5b4661e30092f553
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 95 ++++++++++++++----------------
 1 file changed, 44 insertions(+), 51 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index c475b68776311..243125dfa9903 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -26,6 +26,24 @@
 
 #include "../../sys_regs.h"
 
+struct pkvm_loaded_state {
+	/* loaded vcpu is HYP VA */
+	struct kvm_vcpu			*vcpu;
+	bool				is_protected;
+
+	/*
+	 * Host FPSIMD state. Written to when the guest accesses its
+	 * own FPSIMD state, and read when the guest state is live and
+	 * that it needs to be switched back to the host.
+	 *
+	 * Only valid when the KVM_ARM64_FP_ENABLED flag is set in the
+	 * shadow structure.
+	 */
+	struct user_fpsimd_state	host_fpsimd_state;
+};
+
+static DEFINE_PER_CPU(struct pkvm_loaded_state, loaded_state);
+
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
 
 struct kvm_iommu_ops kvm_iommu_ops;
@@ -475,24 +493,6 @@ static void sync_shadow_state(struct kvm_vcpu *shadow_vcpu, u32 exit_reason)
 	shadow_vcpu->arch.pkvm.exit_code = exit_reason;
 }
 
-struct pkvm_loaded_state {
-	/* loaded vcpu is HYP VA */
-	struct kvm_vcpu			*vcpu;
-	bool				is_shadow;
-
-	/*
-	 * Host FPSIMD state. Written to when the guest accesses its
-	 * own FPSIMD state, and read when the guest state is live and
-	 * that it needs to be switched back to the host.
-	 *
-	 * Only valid when the KVM_ARM64_FP_ENABLED flag is set in the
-	 * shadow structure.
-	 */
-	struct user_fpsimd_state	host_fpsimd_state;
-};
-
-static DEFINE_PER_CPU(struct pkvm_loaded_state, loaded_state);
-
 static void fpsimd_host_restore(void)
 {
 	sysreg_clear_set(cptr_el2, CPTR_EL2_TZ | CPTR_EL2_TFP, 0);
@@ -501,13 +501,11 @@ static void fpsimd_host_restore(void)
 	if (unlikely(is_protected_kvm_enabled())) {
 		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-		if (state->is_shadow) {
-			__fpsimd_save_state(&state->vcpu->arch.ctxt.fp_regs);
-			__fpsimd_restore_state(&state->host_fpsimd_state);
+		__fpsimd_save_state(&state->vcpu->arch.ctxt.fp_regs);
+		__fpsimd_restore_state(&state->host_fpsimd_state);
 
-			state->vcpu->arch.flags &= ~KVM_ARM64_FP_ENABLED;
-			state->vcpu->arch.flags |= KVM_ARM64_FP_HOST;
-		}
+		state->vcpu->arch.flags &= ~KVM_ARM64_FP_ENABLED;
+		state->vcpu->arch.flags |= KVM_ARM64_FP_HOST;
 	}
 
 	if (system_supports_sve())
@@ -532,18 +530,23 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 
 	vcpu = kern_hyp_va(vcpu);
 
-	handle = vcpu->arch.pkvm.shadow_handle;
-	state->vcpu = get_shadow_vcpu(handle, vcpu->vcpu_idx) ?: vcpu;
-	state->is_shadow = state->vcpu != vcpu;
+	handle = READ_ONCE(vcpu->arch.pkvm.shadow_handle);
+	state->vcpu = get_shadow_vcpu(handle, vcpu->vcpu_idx);
 
-	if (state->is_shadow) {
-		state->vcpu->arch.host_fpsimd_state = &state->host_fpsimd_state;
-		state->vcpu->arch.flags |= KVM_ARM64_FP_HOST;
+	if (!state->vcpu)
+		return;
+
+	state->is_protected = state->vcpu->arch.pkvm.shadow_vm->arch.pkvm.enabled;
+
+	state->vcpu->arch.host_fpsimd_state = &state->host_fpsimd_state;
+	state->vcpu->arch.flags |= KVM_ARM64_FP_HOST;
 
+	if (state->is_protected) {
 		/* Propagate WFx trapping flags, trap ptrauth */
 		state->vcpu->arch.hcr_el2 &= ~(HCR_TWE | HCR_TWI |
 					       HCR_API | HCR_APK);
-		state->vcpu->arch.hcr_el2 |= vcpu->arch.hcr_el2 & (HCR_TWE | HCR_TWI);
+		state->vcpu->arch.hcr_el2 |= vcpu->arch.hcr_el2 & (HCR_TWE |
+								   HCR_TWI);
 	}
 }
 
@@ -554,8 +557,9 @@ static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 	if (unlikely(is_protected_kvm_enabled())) {
 		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-		if (state->vcpu && state->is_shadow &&
-		    state->vcpu->arch.pkvm.host_vcpu == kern_hyp_va(vcpu)) {
+		vcpu = kern_hyp_va(vcpu);
+
+		if (state->vcpu && state->vcpu->arch.pkvm.host_vcpu == vcpu) {
 			if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED)
 				fpsimd_host_restore();
 
@@ -575,13 +579,11 @@ static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 	if (unlikely(is_protected_kvm_enabled())) {
 		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-		if (state->is_shadow)
-			flush_shadow_state(state->vcpu);
+		flush_shadow_state(state->vcpu);
 
 		ret = __kvm_vcpu_run(state->vcpu);
 
-		if (state->is_shadow)
-			sync_shadow_state(state->vcpu, ret);
+		sync_shadow_state(state->vcpu, ret);
 
 		if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
 			/*
@@ -614,7 +616,7 @@ static void handle___pkvm_host_donate_guest(struct kvm_cpu_context *host_ctxt)
 
 	vcpu = kern_hyp_va(vcpu);
 	state = this_cpu_ptr(&loaded_state);
-	if (!state->vcpu || !state->is_shadow)
+	if (!state->vcpu)
 		goto out;
 
 	/* Topup shadow memcache with the host's */
@@ -639,7 +641,7 @@ static void handle___kvm_adjust_pc(struct kvm_cpu_context *host_ctxt)
 		 * must have a vcpu loaded when protected mode is
 		 * enabled.
 		 */
-		if (!state->vcpu || state->is_shadow || state->vcpu != vcpu)
+		if (!state->vcpu || state->is_protected)
 			return;
 	}
 
@@ -712,19 +714,10 @@ static struct vgic_v3_cpu_if *get_shadow_vgic_v3_cpu_if(struct vgic_v3_cpu_if *c
 		if (!state->vcpu)
 			return NULL;
 
-		if (state->is_shadow) {
-			host_vcpu = state->vcpu->arch.pkvm.host_vcpu;
-
-			if (&host_vcpu->arch.vgic_cpu.vgic_v3 != cpu_if)
-				return NULL;
-
-			return &state->vcpu->arch.vgic_cpu.vgic_v3;
-		} else {
-			if (&state->vcpu->arch.vgic_cpu.vgic_v3 != cpu_if)
-				return NULL;
+		host_vcpu = state->vcpu->arch.pkvm.host_vcpu;
 
-			return cpu_if;
-		}
+		if (&host_vcpu->arch.vgic_cpu.vgic_v3 != cpu_if)
+			return NULL;
 	}
 
 	return cpu_if;
-- 
GitLab


From a1ab3b544a4085f74dfcc88286fb40be2dd7e698 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 17:57:31 +0000
Subject: [PATCH 2716/4878] ANDROID: KVM: arm64: pkvm: Make
 {flush,sync}_shadow_state() take the full state

As we're about to need to copy some state back and forth for
non0-protected guests, pass the full loaded state to the flush/sync
functions.

No functionnal change.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I7ad6a00a7500e91237fcc0981261c819b2224ee0
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 243125dfa9903..1cacfb92cae97 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -408,8 +408,13 @@ static void sync_vgic_state(struct kvm_vcpu *host_vcpu,
 		host_cpu_if->vgic_lr[i] = shadow_cpu_if->vgic_lr[i];
 }
 
-static void flush_timer_state(struct kvm_vcpu *shadow_vcpu)
+static void flush_timer_state(struct pkvm_loaded_state *state)
 {
+	struct kvm_vcpu *shadow_vcpu = state->vcpu;
+
+	if (!state->is_protected)
+		return;
+
 	/*
 	 * A shadow vcpu has no offset, and sees vtime == ptime. The
 	 * ptimer is fully emulated by EL1 and cannot be trusted.
@@ -420,8 +425,13 @@ static void flush_timer_state(struct kvm_vcpu *shadow_vcpu)
 	write_sysreg_el0(__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0), SYS_CNTV_CTL);
 }
 
-static void sync_timer_state(struct kvm_vcpu *shadow_vcpu)
+static void sync_timer_state(struct pkvm_loaded_state *state)
 {
+	struct kvm_vcpu *shadow_vcpu = state->vcpu;
+
+	if (!state->is_protected)
+		return;
+
 	/*
 	 * Preserve the vtimer state so that it is always correct,
 	 * even if the host tries to make a mess.
@@ -430,8 +440,9 @@ static void sync_timer_state(struct kvm_vcpu *shadow_vcpu)
 	__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0) = read_sysreg_el0(SYS_CNTV_CTL);
 }
 
-static void flush_shadow_state(struct kvm_vcpu *shadow_vcpu)
+static void flush_shadow_state(struct pkvm_loaded_state *state)
 {
+	struct kvm_vcpu *shadow_vcpu = state->vcpu;
 	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
 	u8 esr_ec;
 	shadow_entry_exit_handler_fn ec_handler;
@@ -440,7 +451,7 @@ static void flush_shadow_state(struct kvm_vcpu *shadow_vcpu)
 		pkvm_reset_vcpu(shadow_vcpu);
 
 	flush_vgic_state(host_vcpu, shadow_vcpu);
-	flush_timer_state(shadow_vcpu);
+	flush_timer_state(state);
 
 	switch (ARM_EXCEPTION_CODE(shadow_vcpu->arch.pkvm.exit_code)) {
 	case ARM_EXCEPTION_IRQ:
@@ -462,14 +473,15 @@ static void flush_shadow_state(struct kvm_vcpu *shadow_vcpu)
 	shadow_vcpu->arch.pkvm.exit_code = 0;
 }
 
-static void sync_shadow_state(struct kvm_vcpu *shadow_vcpu, u32 exit_reason)
+static void sync_shadow_state(struct pkvm_loaded_state *state, u32 exit_reason)
 {
+	struct kvm_vcpu *shadow_vcpu = state->vcpu;
 	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
 	u8 esr_ec;
 	shadow_entry_exit_handler_fn ec_handler;
 
 	sync_vgic_state(host_vcpu, shadow_vcpu);
-	sync_timer_state(shadow_vcpu);
+	sync_timer_state(state);
 
 	switch (ARM_EXCEPTION_CODE(exit_reason)) {
 	case ARM_EXCEPTION_IRQ:
@@ -579,11 +591,11 @@ static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 	if (unlikely(is_protected_kvm_enabled())) {
 		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-		flush_shadow_state(state->vcpu);
+		flush_shadow_state(state);
 
 		ret = __kvm_vcpu_run(state->vcpu);
 
-		sync_shadow_state(state->vcpu, ret);
+		sync_shadow_state(state, ret);
 
 		if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
 			/*
-- 
GitLab


From 520514c341905d37803ec653df24e7430035f3e4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:05:23 +0000
Subject: [PATCH 2717/4878] ANDROID: KVM: arm64: pkvm: Introduce entry/exit
 handlers for non-protected guests

A non-protected guest requires a lot less handling than a protected
one when dealing with entries/exits from/to EL2.

Since we already indiredct those, introduce new entry/exit tables
for non-pVMs.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I66602bc491a4a87d6482b12e4eaf7aa53a7dbfd9
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 49 +++++++++++++++++++++++++++---
 1 file changed, 45 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 1cacfb92cae97..96940095fa07d 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -351,7 +351,32 @@ static void handle_pvm_exit_dabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *sh
 		   __vcpu_sys_reg(shadow_vcpu, SCTLR_EL1) & (SCTLR_ELx_EE | SCTLR_EL1_E0E));
 }
 
-static const shadow_entry_exit_handler_fn entry_shadow_handlers[] = {
+static void handle_vm_entry_generic(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	unsigned long host_flags = READ_ONCE(host_vcpu->arch.flags);
+
+	shadow_vcpu->arch.flags &= ~(KVM_ARM64_PENDING_EXCEPTION |
+				     KVM_ARM64_EXCEPT_MASK);
+
+	if (host_flags & KVM_ARM64_PENDING_EXCEPTION) {
+		shadow_vcpu->arch.flags |= KVM_ARM64_PENDING_EXCEPTION;
+		shadow_vcpu->arch.flags |= host_flags & KVM_ARM64_EXCEPT_MASK;
+	} else if (host_flags & KVM_ARM64_INCREMENT_PC) {
+		shadow_vcpu->arch.flags |= KVM_ARM64_INCREMENT_PC;
+	}
+}
+
+static void handle_vm_exit_generic(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	host_vcpu->arch.fault.esr_el2 = shadow_vcpu->arch.fault.esr_el2;
+}
+
+static void handle_vm_exit_abt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
+{
+	host_vcpu->arch.fault = shadow_vcpu->arch.fault;
+}
+
+static const shadow_entry_exit_handler_fn entry_pvm_shadow_handlers[] = {
 	[0 ... ESR_ELx_EC_MAX]		= NULL,
 	[ESR_ELx_EC_WFx]		= handle_pvm_entry_wfx,
 	[ESR_ELx_EC_HVC64]		= handle_pvm_entry_hvc64,
@@ -360,7 +385,7 @@ static const shadow_entry_exit_handler_fn entry_shadow_handlers[] = {
 	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_entry_dabt,
 };
 
-static const shadow_entry_exit_handler_fn exit_shadow_handlers[] = {
+static const shadow_entry_exit_handler_fn exit_pvm_shadow_handlers[] = {
 	[0 ... ESR_ELx_EC_MAX]		= NULL,
 	[ESR_ELx_EC_WFx]		= handle_pvm_exit_wfx,
 	[ESR_ELx_EC_HVC64]		= handle_pvm_exit_hvc64,
@@ -369,6 +394,16 @@ static const shadow_entry_exit_handler_fn exit_shadow_handlers[] = {
 	[ESR_ELx_EC_DABT_LOW]		= handle_pvm_exit_dabt,
 };
 
+static const shadow_entry_exit_handler_fn entry_vm_shadow_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= handle_vm_entry_generic,
+};
+
+static const shadow_entry_exit_handler_fn exit_vm_shadow_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]		= handle_vm_exit_generic,
+	[ESR_ELx_EC_IABT_LOW]		= handle_vm_exit_abt,
+	[ESR_ELx_EC_DABT_LOW]		= handle_vm_exit_abt,
+};
+
 static void flush_vgic_state(struct kvm_vcpu *host_vcpu,
 			     struct kvm_vcpu *shadow_vcpu)
 {
@@ -460,7 +495,10 @@ static void flush_shadow_state(struct pkvm_loaded_state *state)
 		break;
 	case ARM_EXCEPTION_TRAP:
 		esr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(shadow_vcpu));
-		ec_handler = entry_shadow_handlers[esr_ec];
+		if (state->is_protected)
+			ec_handler = entry_pvm_shadow_handlers[esr_ec];
+		else
+			ec_handler = entry_vm_shadow_handlers[esr_ec];
 
 		if (ec_handler)
 			ec_handler(host_vcpu, shadow_vcpu);
@@ -488,7 +526,10 @@ static void sync_shadow_state(struct pkvm_loaded_state *state, u32 exit_reason)
 		break;
 	case ARM_EXCEPTION_TRAP:
 		esr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(shadow_vcpu));
-		ec_handler = exit_shadow_handlers[esr_ec];
+		if (state->is_protected)
+			ec_handler = exit_pvm_shadow_handlers[esr_ec];
+		else
+			ec_handler = exit_vm_shadow_handlers[esr_ec];
 
 		if (ec_handler)
 			ec_handler(host_vcpu, shadow_vcpu);
-- 
GitLab


From 3e7b59fb60a01e8b444b9b716863256403b57dcc Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:17:18 +0000
Subject: [PATCH 2718/4878] ANDROID: KVM: arm64: pkvm: State sync primitives
 for non-protected guests

In order for a non-protected guest to be functionnal, userspace
has to be able to query its state, which means that the host view
of the vcpu has to be kept up to date.

In order to achieve this, we establish the following scheme for EL2:

- On entering vcpu_run(), we check for the KVM_ARM64_PKVM_STATE_DIRTY
  flag in the host vcpu. If set, we sync the state *from* the host
  to the shadow version.

- On exiting vcpu_run(), we don't do anything, but let the host
  issue a synch hypercall if required.

- On vcpu_put(), we force a synchronisation *to* the host.

The El1 host will have a complementary approach in the following
patches.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I42811a25d2e176d6c7d9a66ade6e9149a96e9256
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_asm.h   |  1 +
 arch/arm64/include/asm/kvm_host.h  |  1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 61 ++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 0e4a0b179a857..acfabb81d494f 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -78,6 +78,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___pkvm_teardown_shadow,
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_load,
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_put,
+	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_sync_state,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 4432b69f72300..037a917dcc881 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -552,6 +552,7 @@ struct kvm_vcpu_arch {
 #define KVM_ARM64_DEBUG_STATE_SAVE_SPE	(1 << 12) /* Save SPE context if active  */
 #define KVM_ARM64_DEBUG_STATE_SAVE_TRBE	(1 << 13) /* Save TRBE context if active  */
 #define KVM_ARM64_FP_FOREIGN_FPSTATE	(1 << 14)
+#define KVM_ARM64_PKVM_STATE_DIRTY	(1 << 15)
 
 #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
 				 KVM_GUESTDBG_USE_SW_BP | \
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 96940095fa07d..ff0a4f9fb09f6 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -475,6 +475,28 @@ static void sync_timer_state(struct pkvm_loaded_state *state)
 	__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0) = read_sysreg_el0(SYS_CNTV_CTL);
 }
 
+static void __sync_vcpu_state(struct kvm_vcpu *from_vcpu,
+			      struct kvm_vcpu *to_vcpu)
+{
+	int i;
+
+	to_vcpu->arch.ctxt.regs		= from_vcpu->arch.ctxt.regs;
+	to_vcpu->arch.ctxt.spsr_abt	= from_vcpu->arch.ctxt.spsr_abt;
+	to_vcpu->arch.ctxt.spsr_und	= from_vcpu->arch.ctxt.spsr_und;
+	to_vcpu->arch.ctxt.spsr_irq	= from_vcpu->arch.ctxt.spsr_irq;
+	to_vcpu->arch.ctxt.spsr_fiq	= from_vcpu->arch.ctxt.spsr_fiq;
+
+	/*
+	 * Copy the sysregs, but don't mess with the timer state which
+	 * is directly handled by EL1 and is expected to be preserved.
+	 */
+	for (i = 1; i < NR_SYS_REGS; i++) {
+		if (i >= CNTVOFF_EL2 && i <= CNTP_CTL_EL0)
+			continue;
+		to_vcpu->arch.ctxt.sys_regs[i] = from_vcpu->arch.ctxt.sys_regs[i];
+	}
+}
+
 static void flush_shadow_state(struct pkvm_loaded_state *state)
 {
 	struct kvm_vcpu *shadow_vcpu = state->vcpu;
@@ -485,6 +507,19 @@ static void flush_shadow_state(struct pkvm_loaded_state *state)
 	if (READ_ONCE(shadow_vcpu->arch.pkvm.power_state) == PSCI_0_2_AFFINITY_LEVEL_ON_PENDING)
 		pkvm_reset_vcpu(shadow_vcpu);
 
+	/*
+	 * If we deal with a non-protected guest and that the state is
+	 * dirty (from a host perspective), copy the state back into
+	 * the shadow.
+	 */
+	if (!state->is_protected) {
+		if (READ_ONCE(host_vcpu->arch.flags) & KVM_ARM64_PKVM_STATE_DIRTY)
+			__sync_vcpu_state(host_vcpu, shadow_vcpu);
+
+		state->vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS & ~(HCR_RW | HCR_TWI | HCR_TWE);
+		state->vcpu->arch.hcr_el2 |= host_vcpu->arch.hcr_el2;
+	}
+
 	flush_vgic_state(host_vcpu, shadow_vcpu);
 	flush_timer_state(state);
 
@@ -518,6 +553,10 @@ static void sync_shadow_state(struct pkvm_loaded_state *state, u32 exit_reason)
 	u8 esr_ec;
 	shadow_entry_exit_handler_fn ec_handler;
 
+	/*
+	 * Don't sync the vcpu GPR/sysreg state after a run. Instead,
+	 * leave it in the shadow until someone actually requires it.
+	 */
 	sync_vgic_state(host_vcpu, shadow_vcpu);
 	sync_timer_state(state);
 
@@ -616,6 +655,10 @@ static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 			if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED)
 				fpsimd_host_restore();
 
+			if (!state->is_protected &&
+			    !(READ_ONCE(vcpu->arch.flags) & KVM_ARM64_PKVM_STATE_DIRTY))
+				__sync_vcpu_state(state->vcpu, vcpu);
+
 			put_shadow_vcpu(state->vcpu);
 
 			/* "It's over and done with..." */
@@ -624,6 +667,23 @@ static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 	}
 }
 
+static void handle___pkvm_vcpu_sync_state(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+
+	if (unlikely(is_protected_kvm_enabled())) {
+		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+
+		vcpu = kern_hyp_va(vcpu);
+
+		if (!state->vcpu || state->is_protected ||
+		    state->vcpu->arch.pkvm.host_vcpu != vcpu)
+			return;
+
+		__sync_vcpu_state(state->vcpu, vcpu);
+	}
+}
+
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
@@ -932,6 +992,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_teardown_shadow),
 	HANDLE_FUNC(__pkvm_vcpu_load),
 	HANDLE_FUNC(__pkvm_vcpu_put),
+	HANDLE_FUNC(__pkvm_vcpu_sync_state),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
-- 
GitLab


From 4fe4fd67466a7cecece1f75ae8c95a840442b86b Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:25:36 +0000
Subject: [PATCH 2719/4878] ANDROID: KVM: arm64: pkvm: Manage the non-protected
 guest dirty state from EL1

In order to deal with state synchronisation between EL1 and EL2,
we use the following setup:

- On exit from EL2, the state is forcefully marked clean.
- Should a trap be handled, the state is synchronised and immediately
  marked dirty
- On vcpu_put(), the state is also marked dirty, since it can be
  modified by userspace

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I47a889ca5432566f236de4630d81753348632f8a
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/arm.c         | 10 +++++++++-
 arch/arm64/kvm/handle_exit.c | 22 ++++++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 691664d61d65b..859d33b8e6806 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -582,6 +582,10 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 		kvm_call_hyp(__vgic_v3_save_vmcr_aprs,
 			     &vcpu->arch.vgic_cpu.vgic_v3);
 		kvm_call_hyp_nvhe(__pkvm_vcpu_put, vcpu);
+
+		/* __pkvm_vcpu_put implies a sync of the state */
+		if (!kvm_vm_is_protected(vcpu->kvm))
+			vcpu->arch.flags |= KVM_ARM64_PKVM_STATE_DIRTY;
 	}
 
 	kvm_arch_vcpu_put_debug_state_flags(vcpu);
@@ -788,8 +792,12 @@ int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
 		static_branch_inc(&userspace_irqchip_in_use);
 	}
 
-	if (is_protected_kvm_enabled())
+	if (is_protected_kvm_enabled()) {
+		/* Start with the vcpu in a dirty state */
+		if (!kvm_vm_is_protected(vcpu->kvm))
+			vcpu->arch.flags |= KVM_ARM64_PKVM_STATE_DIRTY;
 		ret = create_el2_shadow(kvm);
+	}
 
 	return ret;
 }
diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index 275a27368a04c..ef85cf6ce5cbe 100644
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -201,6 +201,21 @@ static int handle_trap_exceptions(struct kvm_vcpu *vcpu)
 {
 	int handled;
 
+	/*
+	 * If we run a non-protected VM when protection is enabled
+	 * system-wide, resync the state from the hypervisor and mark
+	 * it as dirty on the host side if it wasn't dirty already
+	 * (which could happen if preemption has taken place).
+	 */
+	if (is_protected_kvm_enabled() && !kvm_vm_is_protected(vcpu->kvm)) {
+		preempt_disable();
+		if (!(vcpu->arch.flags & KVM_ARM64_PKVM_STATE_DIRTY)) {
+			kvm_call_hyp_nvhe(__pkvm_vcpu_sync_state, vcpu);
+			vcpu->arch.flags |= KVM_ARM64_PKVM_STATE_DIRTY;
+		}
+		preempt_enable();
+	}
+
 	/*
 	 * See ARM ARM B1.14.1: "Hyp traps on instructions
 	 * that fail their condition code check"
@@ -260,6 +275,13 @@ int handle_exit(struct kvm_vcpu *vcpu, int exception_index)
 /* For exit types that need handling before we can be preempted */
 void handle_exit_early(struct kvm_vcpu *vcpu, int exception_index)
 {
+	/*
+	 * We just exited, so the state is clean from a hypervisor
+	 * perspective.
+	 */
+	if (is_protected_kvm_enabled())
+		vcpu->arch.flags &= ~KVM_ARM64_PKVM_STATE_DIRTY;
+
 	if (ARM_SERROR_PENDING(exception_index)) {
 		if (this_cpu_has_cap(ARM64_HAS_RAS_EXTN)) {
 			u64 disr = kvm_vcpu_get_disr(vcpu);
-- 
GitLab


From 3336b8073a1a1defb659fabd07dccc95e7cbaa04 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:39:37 +0000
Subject: [PATCH 2720/4878] ANDROID: KVM: arm64: pkvm: Share memory with
 non-protected guests

Instead of donating memory to non-pVMs, share the memory, which
gives us a good enough approximation of the usual behaviour.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I47213754613110a6fb8157806eb96ddf92ead346
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index ff0a4f9fb09f6..c3faad28e7016 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -734,8 +734,12 @@ static void handle___pkvm_host_donate_guest(struct kvm_cpu_context *host_ctxt)
 
 	/* Topup shadow memcache with the host's */
 	ret = pkvm_refill_memcache(state->vcpu, vcpu);
-	if (!ret)
-		ret = __pkvm_host_donate_guest(pfn, gfn, state->vcpu);
+	if (!ret) {
+		if (state->is_protected)
+			ret = __pkvm_host_donate_guest(pfn, gfn, state->vcpu);
+		else
+			ret = __pkvm_host_share_guest(pfn, gfn, state->vcpu);
+	}
 out:
 	cpu_reg(host_ctxt, 1) =  ret;
 }
-- 
GitLab


From 70f68991b33f191d1961fcd9788ef997571d1b1c Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:49:29 +0000
Subject: [PATCH 2721/4878] ANDROID: KVM: arm64: pkvm: Don't init pvm traps non
 non-protected guests

We want the host to handle everything as usual.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Icf8ee146917e886bca258815cf948a1b12540353
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index a3e53009696a0..d80e0d8f255ef 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -379,7 +379,8 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
 		if (ret)
 			return ret;
 
-		pkvm_vcpu_init_traps(shadow_vcpu);
+		if (vm->arch.pkvm.enabled)
+			pkvm_vcpu_init_traps(shadow_vcpu);
 		kvm_reset_pvm_sys_regs(shadow_vcpu);
 
 		vm->vcpus[i] = shadow_vcpu;
-- 
GitLab


From 21b5ab1b19c0aec53809651b2dd1cb41c83c1d88 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 5 Jan 2022 18:50:17 +0000
Subject: [PATCH 2722/4878] ANDROID: KVM: arm64: pkvm: Allow the shadows to be
 destroyed on teardown

There is no difference between protected and non-protected guests
when it comes to shadow structures, and we want these shadow
structures to have the same life cycle.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I7e9bf366aae6bd0542d0038d24e2350a9dd23cd0
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/arm.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 859d33b8e6806..d712f1786cf0d 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -196,9 +196,6 @@ static void kvm_shadow_destroy(struct kvm *kvm)
 	struct mm_struct *mm = current->mm;
 	struct list_head *ppages;
 
-	if (!kvm_vm_is_protected(kvm))
-		return;
-
 	if (kvm->arch.pkvm.shadow_handle)
 		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
 
-- 
GitLab


From 000f0c90c4e9ddbca5d3ce0c268de71a82120706 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 14 Jan 2022 09:02:01 +0000
Subject: [PATCH 2723/4878] ANDROID: KVM: arm64: pkvm: Plug in cache
 invalidation for non-protected guests

Since we must still support the dreaded set/way CMOs for non-protected
VMs (as well as the equivalent operation when vcpus switch their MMU
on), perform an invalidation that will iterate over all the pages
that have been donated to the guest, one after the other.

This requires a minor change to the locking used for donation so
that all donated pages can be seen by a concurrent invalidation.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I1780127722bda7bdc884bb4e68db6ae47d042822
---
 arch/arm64/kvm/mmu.c | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 0a0459e986a9a..3662a9103fa8f 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -190,6 +190,22 @@ static void unmap_stage2_range(struct kvm_s2_mmu *mmu, phys_addr_t start, u64 si
 	__unmap_stage2_range(mmu, start, size, true);
 }
 
+static void pkvm_stage2_flush(struct kvm *kvm)
+{
+	struct kvm_pinned_page *ppage;
+
+	/*
+	 * Contrary to stage2_apply_range(), we don't need to check
+	 * whether the VM is being torn down, as this is always called
+	 * from a vcpu thread, and the list is only ever freed on VM
+	 * destroy (which only occurs when all vcpu are gone).
+	 */
+	list_for_each_entry(ppage, &kvm->arch.pkvm.pinned_pages, link) {
+		__clean_dcache_guest_page(page_address(ppage->page), PAGE_SIZE);
+		cond_resched_lock(&kvm->mmu_lock);
+	}
+}
+
 static void stage2_flush_memslot(struct kvm *kvm,
 				 struct kvm_memory_slot *memslot)
 {
@@ -215,9 +231,13 @@ static void stage2_flush_vm(struct kvm *kvm)
 	idx = srcu_read_lock(&kvm->srcu);
 	spin_lock(&kvm->mmu_lock);
 
-	slots = kvm_memslots(kvm);
-	kvm_for_each_memslot(memslot, slots)
-		stage2_flush_memslot(kvm, memslot);
+	if (!is_protected_kvm_enabled()) {
+		slots = kvm_memslots(kvm);
+		kvm_for_each_memslot(memslot, slots)
+			stage2_flush_memslot(kvm, memslot);
+	} else if (!kvm_vm_is_protected(kvm)) {
+		pkvm_stage2_flush(kvm);
+	}
 
 	spin_unlock(&kvm->mmu_lock);
 	srcu_read_unlock(&kvm->srcu, idx);
@@ -1178,6 +1198,7 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 		goto dec_account;
 	}
 
+	spin_lock(&kvm->mmu_lock);
 	pfn = page_to_pfn(page);
 	ret = pkvm_host_donate_guest(pfn, fault_ipa >> PAGE_SHIFT, vcpu);
 	if (ret) {
@@ -1188,13 +1209,13 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 
 	ppage->page = page;
 	INIT_LIST_HEAD(&ppage->link);
-	spin_lock(&kvm->mmu_lock);
 	list_add(&ppage->link, &kvm->arch.pkvm.pinned_pages);
 	spin_unlock(&kvm->mmu_lock);
 
 	return 0;
 
 unpin:
+	spin_unlock(&kvm->mmu_lock);
 	unpin_user_pages(&page, 1);
 dec_account:
 	account_locked_vm(mm, 1, false);
-- 
GitLab


From d760740101ef87b6f9fd97f7e6b04bbcd9023431 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 21 Jun 2021 15:45:38 +0100
Subject: [PATCH 2724/4878] ANDROID: KVM: arm64: Generalise VM features into a
 set of flags

We currently deal with a set of booleans for VM features,
while they could be better represented as set of flags
contained in an unsigned long, similarily to what we are
doing on the CPU side.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I86be6bab12287c3eb21bbe03f255e2899edbdffb
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h | 12 +++++++-----
 arch/arm64/kvm/arm.c              |  5 +++--
 arch/arm64/kvm/mmio.c             |  3 ++-
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 037a917dcc881..c78baaad56619 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -191,7 +191,10 @@ struct kvm_arch {
 	 * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is
 	 * supported.
 	 */
-	bool return_nisv_io_abort_to_user;
+#define KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER	0
+	/* Memory Tagging Extension enabled for the guest */
+#define KVM_ARCH_FLAG_MTE_ENABLED			1
+	unsigned long flags;
 
 	/*
 	 * VM-wide PMU filter, implemented as a bitmap and big enough for
@@ -203,9 +206,6 @@ struct kvm_arch {
 	u8 pfr0_csv2;
 	u8 pfr0_csv3;
 
-	/* Memory Tagging Extension enabled for the guest */
-	bool mte_enabled;
-
 	struct kvm_protected_vm pkvm;
 
 	u64 hypercall_exit_enabled;
@@ -924,7 +924,9 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu);
 #define kvm_arm_vcpu_sve_finalized(vcpu) \
 	((vcpu)->arch.flags & KVM_ARM64_VCPU_SVE_FINALIZED)
 
-#define kvm_has_mte(kvm) (system_supports_mte() && (kvm)->arch.mte_enabled)
+#define kvm_has_mte(kvm)					\
+	(system_supports_mte() &&				\
+	 test_bit(KVM_ARCH_FLAG_MTE_ENABLED, &(kvm)->arch.flags))
 #define kvm_vcpu_has_pmu(vcpu)					\
 	(test_bit(KVM_ARM_VCPU_PMU_V3, (vcpu)->arch.features))
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index d712f1786cf0d..7f42b4851366a 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -100,7 +100,8 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 	switch (cap->cap) {
 	case KVM_CAP_ARM_NISV_TO_USER:
 		r = 0;
-		kvm->arch.return_nisv_io_abort_to_user = true;
+		set_bit(KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER,
+			&kvm->arch.flags);
 		break;
 	case KVM_CAP_ARM_MTE:
 		mutex_lock(&kvm->lock);
@@ -108,7 +109,7 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 			r = -EINVAL;
 		} else {
 			r = 0;
-			kvm->arch.mte_enabled = true;
+			set_bit(KVM_ARCH_FLAG_MTE_ENABLED, &kvm->arch.flags);
 		}
 		mutex_unlock(&kvm->lock);
 		break;
diff --git a/arch/arm64/kvm/mmio.c b/arch/arm64/kvm/mmio.c
index 3e2d8ba11a027..3dd38a151d2a6 100644
--- a/arch/arm64/kvm/mmio.c
+++ b/arch/arm64/kvm/mmio.c
@@ -135,7 +135,8 @@ int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa)
 	 * volunteered to do so, and bail out otherwise.
 	 */
 	if (!kvm_vcpu_dabt_isvalid(vcpu)) {
-		if (vcpu->kvm->arch.return_nisv_io_abort_to_user) {
+		if (test_bit(KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER,
+			     &vcpu->kvm->arch.flags)) {
 			run->exit_reason = KVM_EXIT_ARM_NISV;
 			run->arm_nisv.esr_iss = kvm_vcpu_dabt_iss_nisv_sanitized(vcpu);
 			run->arm_nisv.fault_ipa = fault_ipa;
-- 
GitLab


From 19b510d531ef2528e855bb7234044ae008e1e6e3 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 21 Jun 2021 15:47:20 +0100
Subject: [PATCH 2725/4878] ANDROID: KVM: arm64: Check for PTE valitity when
 checking for executable/cacheable

Don't blindly assume that the PTE is valid when checking whether
it describes an executable or cacheable mapping.

This makes sure that we don't issue CMOs for invalid mappings.

Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I5b271c91aa6ceb23f7b1e6a571e30d080866d5c9
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 9d2cf32c8b552..03bdf4f508260 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -692,12 +692,12 @@ static void stage2_put_pte(kvm_pte_t *ptep, struct kvm_s2_mmu *mmu, u64 addr,
 static bool stage2_pte_cacheable(struct kvm_pgtable *pgt, kvm_pte_t pte)
 {
 	u64 memattr = pte & KVM_PTE_LEAF_ATTR_LO_S2_MEMATTR;
-	return memattr == KVM_S2_MEMATTR(pgt, NORMAL);
+	return kvm_pte_valid(pte) && memattr == KVM_S2_MEMATTR(pgt, NORMAL);
 }
 
 static bool stage2_pte_executable(kvm_pte_t pte)
 {
-	return !(pte & KVM_PTE_LEAF_ATTR_HI_S2_XN);
+	return kvm_pte_valid(pte) && !(pte & KVM_PTE_LEAF_ATTR_HI_S2_XN);
 }
 
 static bool stage2_leaf_mapping_allowed(u64 addr, u64 end, u32 level,
@@ -749,8 +749,7 @@ static int stage2_map_walker_try_leaf(u64 addr, u64 end, u32 level,
 	/* Perform CMOs before installation of the guest stage-2 PTE */
 	if (mm_ops->dcache_clean_inval_poc && stage2_pte_cacheable(pgt, new))
 		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(new, mm_ops),
-						granule);
-
+					       granule);
 	if (mm_ops->icache_inval_pou && stage2_pte_executable(new))
 		mm_ops->icache_inval_pou(kvm_pte_follow(new, mm_ops), granule);
 
@@ -1149,7 +1148,7 @@ static int stage2_flush_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	struct kvm_pgtable_mm_ops *mm_ops = pgt->mm_ops;
 	kvm_pte_t pte = *ptep;
 
-	if (!kvm_pte_valid(pte) || !stage2_pte_cacheable(pgt, pte))
+	if (!stage2_pte_cacheable(pgt, pte))
 		return 0;
 
 	if (mm_ops->dcache_clean_inval_poc)
-- 
GitLab


From 77deb9870582f448225c97e2cb2213c662233600 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 21 Jun 2021 19:49:45 +0100
Subject: [PATCH 2726/4878] ANDROID: KVM: arm64: Define MMIO guard hypercalls

Define the handful of hypercalls that MMIO guard will require.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Iac312b2327c31a1532fdb38e8fa8066291d9f611
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 include/linux/arm-smccc.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index 81ede58e0ab67..e74199fe55dfe 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -107,6 +107,10 @@
 #define ARM_SMCCC_KVM_FUNC_HYP_MEMINFO		2
 #define ARM_SMCCC_KVM_FUNC_MEM_SHARE		3
 #define ARM_SMCCC_KVM_FUNC_MEM_UNSHARE		4
+#define ARM_SMCCC_KVM_FUNC_MMIO_GUARD_INFO	5
+#define ARM_SMCCC_KVM_FUNC_MMIO_GUARD_ENROLL	6
+#define ARM_SMCCC_KVM_FUNC_MMIO_GUARD_MAP	7
+#define ARM_SMCCC_KVM_FUNC_MMIO_GUARD_UNMAP	8
 #define ARM_SMCCC_KVM_FUNC_FEATURES_2		127
 #define ARM_SMCCC_KVM_NUM_FUNCS			128
 
@@ -151,6 +155,30 @@
 #define KVM_PTP_VIRT_COUNTER			0
 #define KVM_PTP_PHYS_COUNTER			1
 
+#define ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_INFO_FUNC_ID		\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_MMIO_GUARD_INFO)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_ENROLL_FUNC_ID		\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_MMIO_GUARD_ENROLL)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID			\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_MMIO_GUARD_MAP)
+
+#define ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_UNMAP_FUNC_ID		\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_64,				\
+			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
+			   ARM_SMCCC_KVM_FUNC_MMIO_GUARD_UNMAP)
+
 /* Paravirtualised time calls (defined by ARM DEN0057A) */
 #define ARM_SMCCC_HV_PV_TIME_FEATURES				\
 	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,			\
-- 
GitLab


From fc38ca626f7140b8382bf63bf1c73cd840719c94 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 6 Jan 2022 10:01:01 +0000
Subject: [PATCH 2727/4878] ANDROID: KVM: arm64: Expose topup_hyp_memcache() to
 the rest of KVM

In order to simplify the implementation of an EL2-only version of
MMIO guard, expose topup_hyp_memcache() and simplify its usage
by only requiring a vcpu.

While we're at it, make free_hyp_memcache() visible in kvm_host.h

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I4f54c57a9693cf7a3450f99fedc15ae32af09a31
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h |  3 +++
 arch/arm64/kvm/mmu.c              | 10 +++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index c78baaad56619..c84aa9e6e6808 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -125,6 +125,9 @@ static inline void __free_hyp_memcache(struct kvm_hyp_memcache *mc,
 		free_fn(pop_hyp_memcache(mc, to_va), arg);
 }
 
+void free_hyp_memcache(struct kvm_hyp_memcache *mc);
+int topup_hyp_memcache(struct kvm_vcpu *vcpu);
+
 struct kvm_vmid {
 	/* The VMID generation used for the virt. memory system */
 	u64    vmid_gen;
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 3662a9103fa8f..4b7fbb0fc58ff 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -820,13 +820,14 @@ void free_hyp_memcache(struct kvm_hyp_memcache *mc)
 				    kvm_host_va, NULL);
 }
 
-static int topup_hyp_memcache(struct kvm_hyp_memcache *mc,
-			      unsigned long min_pages)
+int topup_hyp_memcache(struct kvm_vcpu *vcpu)
 {
 	if (!is_protected_kvm_enabled())
 		return 0;
 
-	return __topup_hyp_memcache(mc, min_pages, hyp_mc_alloc_fn,
+	return __topup_hyp_memcache(&vcpu->arch.pkvm_memcache,
+				    kvm_mmu_cache_min_pages(vcpu->kvm),
+				    hyp_mc_alloc_fn,
 				    kvm_host_pa, NULL);
 }
 
@@ -1161,7 +1162,6 @@ static int pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
 static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 			  unsigned long hva)
 {
-	struct kvm_hyp_memcache *hyp_memcache = &vcpu->arch.pkvm_memcache;
 	struct mm_struct *mm = current->mm;
 	unsigned int flags = FOLL_FORCE |
 			     FOLL_HWPOISON |
@@ -1173,7 +1173,7 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	u64 pfn;
 	int ret;
 
-	ret = topup_hyp_memcache(hyp_memcache, kvm_mmu_cache_min_pages(kvm));
+	ret = topup_hyp_memcache(vcpu);
 	if (ret)
 		return -ENOMEM;
 
-- 
GitLab


From b7bef27e7174e4d94f77cb8906f03b594739d918 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 6 Jan 2022 10:23:51 +0000
Subject: [PATCH 2728/4878] ANDROID: KVM: arm64: Introduce
 KVM_ARCH_FLAG_MMIO_GUARD flag

Add a per-VM flag indicating that the guest has bought into the
MMIO guard enforcement framework.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: If60b2b38a419a9f44ebe9029f55dd016fd2444b5
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_host.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index c84aa9e6e6808..a69284d07a28f 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -197,6 +197,8 @@ struct kvm_arch {
 #define KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER	0
 	/* Memory Tagging Extension enabled for the guest */
 #define KVM_ARCH_FLAG_MTE_ENABLED			1
+	/* Guest has bought into the MMIO guard extension */
+#define KVM_ARCH_FLAG_MMIO_GUARD			2
 	unsigned long flags;
 
 	/*
-- 
GitLab


From 0cf8258626981c205cf6fe5c90df85ba879b0efa Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 6 Jan 2022 10:29:13 +0000
Subject: [PATCH 2729/4878] ANDROID: KVM: arm64: pkvm: Add MMIO guard
 infrastructure

Introduce the infrastructure required to identify an IPA region
that is expected to be used as an MMIO window.

This include mapping, unmapping and checking the regions. Nothing
calls into it yet, so no expected functional change.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I227eaa28b98e067e3daae4f9e1071eb37a6761cc
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |   3 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 105 ++++++++++++++++++
 2 files changed, 108 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 72a7c4a58fa68..c7ba12748591e 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -68,6 +68,9 @@ int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa);
 int __pkvm_guest_unshare_host(struct kvm_vcpu *vcpu, u64 ipa);
+int __pkvm_install_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa);
+int __pkvm_remove_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa);
+bool __pkvm_check_ioguard_page(struct kvm_vcpu *vcpu);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 6025f18c910a3..88293c4e9f3a4 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -1819,3 +1819,108 @@ unlock:
 
 	return ret;
 }
+
+/* Replace this with something more structured once day */
+#define MMIO_NOTE	(('M' << 24 | 'M' << 16 | 'I' << 8 | 'O') << 1)
+
+static bool __check_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa)
+{
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	kvm_pte_t pte;
+	u32 level;
+	int ret;
+
+	ret = kvm_pgtable_get_leaf(&vm->pgt, ipa, &pte, &level);
+	if (ret)
+		return false;
+
+	/* Must be a PAGE_SIZE mapping with our annotation */
+	return (BIT(ARM64_HW_PGTABLE_LEVEL_SHIFT(level)) == PAGE_SIZE &&
+		pte == MMIO_NOTE);
+}
+
+int __pkvm_install_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa)
+{
+	struct kvm_shadow_vm *vm;
+	kvm_pte_t pte;
+	u32 level;
+	int ret;
+
+	vm = vcpu->arch.pkvm.shadow_vm;
+
+	if (!test_bit(KVM_ARCH_FLAG_MMIO_GUARD, &vm->arch.flags))
+		return -EINVAL;
+
+	if (ipa & ~PAGE_MASK)
+		return -EINVAL;
+
+	guest_lock_component(vcpu);
+
+	ret = kvm_pgtable_get_leaf(&vm->pgt, ipa, &pte, &level);
+	if (ret)
+		goto unlock;
+
+	if (pte && BIT(ARM64_HW_PGTABLE_LEVEL_SHIFT(level)) == PAGE_SIZE) {
+		/*
+		 * Already flagged as MMIO, let's accept it, and fail
+		 * otherwise
+		 */
+		if (pte != MMIO_NOTE)
+			ret = -EBUSY;
+
+		goto unlock;
+	}
+
+	ret = kvm_pgtable_stage2_annotate(&vm->pgt, ipa, PAGE_SIZE,
+					  &vcpu->arch.pkvm_memcache,
+					  MMIO_NOTE);
+
+unlock:
+	guest_unlock_component(vcpu);
+	return ret;
+}
+
+int __pkvm_remove_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa)
+{
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+
+	if (!test_bit(KVM_ARCH_FLAG_MMIO_GUARD, &vm->arch.flags))
+		return -EINVAL;
+
+	guest_lock_component(vcpu);
+
+	if (__check_ioguard_page(vcpu, ipa)) {
+		struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+
+		kvm_pgtable_stage2_unmap(&vm->pgt,
+					 ALIGN_DOWN(ipa, PAGE_SIZE), PAGE_SIZE);
+	}
+
+	guest_unlock_component(vcpu);
+	return 0;
+}
+
+bool __pkvm_check_ioguard_page(struct kvm_vcpu *vcpu)
+{
+	struct kvm_shadow_vm *vm = vcpu->arch.pkvm.shadow_vm;
+	u64 ipa, end;
+	bool ret;
+
+	if (!kvm_vcpu_dabt_isvalid(vcpu))
+		return false;
+
+	if (!test_bit(KVM_ARCH_FLAG_MMIO_GUARD, &vm->arch.flags))
+		return true;
+
+	ipa  = kvm_vcpu_get_fault_ipa(vcpu);
+	ipa |= kvm_vcpu_get_hfar(vcpu) & FAR_MASK;
+	end = ipa + kvm_vcpu_dabt_get_as(vcpu) - 1;
+
+	guest_lock_component(vcpu);
+	ret = __check_ioguard_page(vcpu, ipa);
+	if ((end & PAGE_MASK) != (ipa & PAGE_MASK))
+		ret &= __check_ioguard_page(vcpu, end);
+	guest_unlock_component(vcpu);
+
+	return ret;
+}
-- 
GitLab


From 1b72ff723d76c47b3e74031fabdae265fd54a0a1 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 21 Jun 2021 19:49:45 +0100
Subject: [PATCH 2730/4878] ANDROID: KVM: arm64: pkvm: Wire MMIO guard
 hypercalls

Plumb in the hypercall interface to allow a guest to discover,
enroll, map and unmap MMIO regions.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I0390456ffde8ceca351d3d8e82fd1dddeb747fac
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c |  7 ++++++
 arch/arm64/kvm/hyp/nvhe/pkvm.c     | 40 ++++++++++++++++++++++++++++++
 arch/arm64/kvm/hypercalls.c        |  4 +++
 3 files changed, 51 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index c3faad28e7016..230f1e7025b69 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -105,6 +105,9 @@ static void handle_pvm_entry_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *
 	u32 fn = smccc_get_function(shadow_vcpu);
 
 	switch (fn) {
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID:
+		pkvm_refill_memcache(shadow_vcpu, host_vcpu);
+		break;
 	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
 		fallthrough;
 	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
@@ -297,6 +300,10 @@ static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *s
 		n = 4;
 		break;
 
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID:
+		n = 3;
+		break;
+
 	/*
 	 * The rest are either blocked or handled by HYP, so we should
 	 * really never be here.
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index d80e0d8f255ef..6583176b7b9d7 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -1109,6 +1109,31 @@ out_guest_err:
 	return true;
 }
 
+static bool pkvm_install_ioguard_page(struct kvm_vcpu *vcpu, u64 *exit_code)
+{
+	u32 retval = SMCCC_RET_SUCCESS;
+	u64 ipa = smccc_get_arg1(vcpu);
+	int ret;
+
+	ret = __pkvm_install_ioguard_page(vcpu, ipa);
+	if (ret == -ENOMEM) {
+		/*
+		 * We ran out of memcache, let's ask for more. Cancel
+		 * the effects of the HVC that took us here, and
+		 * forward the hypercall to the host for page donation
+		 * purposes.
+		 */
+		write_sysreg_el2(read_sysreg_el2(SYS_ELR) - 4, SYS_ELR);
+		return false;
+	}
+
+	if (ret)
+		retval = SMCCC_RET_INVALID_PARAMETER;
+
+	smccc_set_retval(vcpu, retval, 0, 0, 0);
+	return true;
+}
+
 /*
  * Handler for protected VM HVC calls.
  *
@@ -1136,7 +1161,22 @@ bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code)
 		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_HYP_MEMINFO);
 		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MEM_SHARE);
 		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MEM_UNSHARE);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_INFO);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_ENROLL);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_MAP);
+		val[0] |= BIT(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_UNMAP);
+		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_ENROLL_FUNC_ID:
+		set_bit(KVM_ARCH_FLAG_MMIO_GUARD, &vcpu->arch.pkvm.shadow_vm->arch.flags);
+		val[0] = SMCCC_RET_SUCCESS;
+		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID:
+		return pkvm_install_ioguard_page(vcpu, exit_code);
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_UNMAP_FUNC_ID:
+		if (__pkvm_remove_ioguard_page(vcpu, vcpu_get_reg(vcpu, 1)))
+			val[0] = SMCCC_RET_SUCCESS;
 		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_INFO_FUNC_ID:
 	case ARM_SMCCC_VENDOR_HYP_KVM_HYP_MEMINFO_FUNC_ID:
 		if (smccc_get_arg1(vcpu) ||
 		    smccc_get_arg2(vcpu) ||
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index 96be983817198..a8fd2b1869b88 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -159,6 +159,10 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 		if (!kvm_vcpu_exit_hcall(vcpu, ARM_SMCCC_KVM_FUNC_MEM_UNSHARE, 3))
 			return 0;
 		break;
+	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID:
+		if (kvm_vm_is_protected(vcpu->kvm) && !topup_hyp_memcache(vcpu))
+			val[0] = SMCCC_RET_SUCCESS;
+		break;
 	case ARM_SMCCC_TRNG_VERSION:
 	case ARM_SMCCC_TRNG_FEATURES:
 	case ARM_SMCCC_TRNG_GET_UUID:
-- 
GitLab


From a0841f8b502b326e1240ab8160f01ab22cbb51b5 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 21 Jun 2021 19:00:50 +0100
Subject: [PATCH 2731/4878] ANDROID: KVM: arm64: Plumb MMIO checking into the
 fault handling

Plumb the MMIO checking code into the MMIO fault handling code.
Any fault hitting outside of an MMIO region will now report
an invalid syndrome, and won't leak any data from the guest.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I68bef2d0211a804aa1e598aeaa0c85dc4098f61e
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 230f1e7025b69..803512cf8436e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -329,8 +329,7 @@ static void handle_pvm_exit_iabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *sh
 
 static void handle_pvm_exit_dabt(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *shadow_vcpu)
 {
-	/* FIXME: Revisit once MMIO-guard is available */
-	shadow_vcpu->mmio_needed = true;
+	shadow_vcpu->mmio_needed = __pkvm_check_ioguard_page(shadow_vcpu);
 
 	if (shadow_vcpu->mmio_needed) {
 		/* r0 as transfer register between the guest and the host. */
-- 
GitLab


From be179b64d02625523ba1cf4972a5ccde5653b9bb Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 5 Jul 2021 10:33:15 +0100
Subject: [PATCH 2732/4878] ANDROID: KVM: arm64: Add some documentation for the
 MMIO guard feature

Document the hypercalls user for the MMIO guard infrastructure.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I927bcd6c5e3ef932265d817288ff2b46b0e0db66
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 Documentation/virt/kvm/arm/index.rst      |  1 +
 Documentation/virt/kvm/arm/mmio-guard.rst | 74 +++++++++++++++++++++++
 2 files changed, 75 insertions(+)
 create mode 100644 Documentation/virt/kvm/arm/mmio-guard.rst

diff --git a/Documentation/virt/kvm/arm/index.rst b/Documentation/virt/kvm/arm/index.rst
index 78a9b670aafee..e77a0ee2e2d43 100644
--- a/Documentation/virt/kvm/arm/index.rst
+++ b/Documentation/virt/kvm/arm/index.rst
@@ -11,3 +11,4 @@ ARM
    psci
    pvtime
    ptp_kvm
+   mmio-guard
diff --git a/Documentation/virt/kvm/arm/mmio-guard.rst b/Documentation/virt/kvm/arm/mmio-guard.rst
new file mode 100644
index 0000000000000..8b3c852c5d92e
--- /dev/null
+++ b/Documentation/virt/kvm/arm/mmio-guard.rst
@@ -0,0 +1,74 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============
+KVM MMIO guard
+==============
+
+KVM implements device emulation by handling translation faults to any
+IPA range that is not contained in a memory slot. Such a translation
+fault is in most cases passed on to userspace (or in rare cases to the
+host kernel) with the address, size and possibly data of the access
+for emulation.
+
+Should the guest exit with an address that is not one that corresponds
+to an emulatable device, userspace may take measures that are not the
+most graceful as far as the guest is concerned (such as terminating it
+or delivering a fatal exception).
+
+There is also an element of trust: by forwarding the request to
+userspace, the kernel assumes that the guest trusts userspace to do
+the right thing.
+
+The KVM MMIO guard offers a way to mitigate this last point: a guest
+can request that only certain regions of the IPA space are valid as
+MMIO. Only these regions will be handled as an MMIO, and any other
+will result in an exception being delivered to the guest.
+
+This relies on a set of hypercalls defined in the KVM-specific range,
+using the HVC64 calling convention.
+
+* ARM_SMCCC_KVM_FUNC_MMIO_GUARD_INFO
+
+    ==============    ========    ================================
+    Function ID:      (uint32)    0xC6000002
+    Arguments:        none
+    Return Values:    (int64)     NOT_SUPPORTED(-1) on error, or
+                      (uint64)    Protection Granule (PG) size in
+                                  bytes (r0)
+    ==============    ========    ================================
+
+* ARM_SMCCC_KVM_FUNC_MMIO_GUARD_ENROLL
+
+    ==============    ========    ==============================
+    Function ID:      (uint32)    0xC6000003
+    Arguments:        none
+    Return Values:    (int64)     NOT_SUPPORTED(-1) on error, or
+                                  RET_SUCCESS(0) (r0)
+    ==============    ========    ==============================
+
+* ARM_SMCCC_KVM_FUNC_MMIO_GUARD_MAP
+
+    ==============    ========    ====================================
+    Function ID:      (uint32)    0xC6000004
+    Arguments:        (uint64)    The base of the PG-sized IPA range
+                                  that is allowed to be accessed as
+                                  MMIO. Must be aligned to the PG size
+                                  (r1)
+                      (uint64)    Index in the MAIR_EL1 register
+		                  providing the memory attribute that
+				  is used by the guest (r2)
+    Return Values:    (int64)     NOT_SUPPORTED(-1) on error, or
+                                  RET_SUCCESS(0) (r0)
+    ==============    ========    ====================================
+
+* ARM_SMCCC_KVM_FUNC_MMIO_GUARD_UNMAP
+
+    ==============    ========    ======================================
+    Function ID:      (uint32)    0xC6000005
+    Arguments:        (uint64)    PG-sized IPA range aligned to the PG
+                                  size which has been previously mapped.
+                                  Must be aligned to the PG size and
+                                  have been previously mapped (r1)
+    Return Values:    (int64)     NOT_SUPPORTED(-1) on error, or
+                                  RET_SUCCESS(0) (r0)
+    ==============    ========    ======================================
-- 
GitLab


From bd1474cd4c96110f6b070b4fa6cdc3af95b74929 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 30 Jun 2021 13:24:32 +0100
Subject: [PATCH 2733/4878] ANDROID: BACKPORT: mm/vmalloc: Add arch-specific
 callbacks to track io{remap,unmap} physical pages

Add a pair of hooks (ioremap_phys_range_hook/iounmap_phys_range_hook)
that can be implemented by an architecture. Contrary to the existing
arch_sync_kernel_mappings(), this one tracks things at the physical
address level.

This is specially useful in these virtualised environments where
the guest has to tell the host whether (and how) it intends to use
a MMIO device.

Signed-off-by: Marc Zyngier <maz@kernel.org>
[willdeacon@: Hook ioremap_page_range() in mm/ioremap.c]
Bug: 209580772
Change-Id: I970c2e632cb2b01060d5e66e4194fa9248188f43
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 include/linux/io.h | 2 ++
 mm/Kconfig         | 5 +++++
 mm/ioremap.c       | 4 ++++
 mm/vmalloc.c       | 6 +++++-
 4 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/linux/io.h b/include/linux/io.h
index 8394c56babc26..416b936b19bcb 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -21,6 +21,8 @@ void __ioread32_copy(void *to, const void __iomem *from, size_t count);
 void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
 
 #ifdef CONFIG_MMU
+void ioremap_phys_range_hook(phys_addr_t phys_addr, size_t size, pgprot_t prot);
+void iounmap_phys_range_hook(phys_addr_t phys_addr, size_t size);
 int ioremap_page_range(unsigned long addr, unsigned long end,
 		       phys_addr_t phys_addr, pgprot_t prot);
 #else
diff --git a/mm/Kconfig b/mm/Kconfig
index 884ba3860ec88..4fa83145139a2 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -888,4 +888,9 @@ config ARCH_HAS_HUGEPD
 config MAPPING_DIRTY_HELPERS
         bool
 
+# Some architectures want callbacks for all IO mappings in order to
+# track the physical addresses that get used as devices.
+config ARCH_HAS_IOREMAP_PHYS_HOOKS
+	bool
+
 endmenu
diff --git a/mm/ioremap.c b/mm/ioremap.c
index 5fa1ab41d1526..17b1d49f79c54 100644
--- a/mm/ioremap.c
+++ b/mm/ioremap.c
@@ -225,6 +225,7 @@ int ioremap_page_range(unsigned long addr,
 	pgd_t *pgd;
 	unsigned long start;
 	unsigned long next;
+	phys_addr_t phys_start = phys_addr;
 	int err;
 	pgtbl_mod_mask mask = 0;
 
@@ -246,6 +247,9 @@ int ioremap_page_range(unsigned long addr,
 	if (mask & ARCH_PAGE_TABLE_SYNC_MASK)
 		arch_sync_kernel_mappings(start, end);
 
+	if (IS_ENABLED(CONFIG_ARCH_HAS_IOREMAP_PHYS_HOOKS) && !err)
+		ioremap_phys_range_hook(phys_start, end - start, prot);
+
 	return err;
 }
 
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index d5615977e7f3d..775dd84766869 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -37,6 +37,7 @@
 #include <trace/hooks/mm.h>
 
 #include <linux/uaccess.h>
+#include <linux/io.h>
 #include <asm/tlbflush.h>
 #include <asm/shmparam.h>
 
@@ -69,7 +70,6 @@ static void free_work(struct work_struct *w)
 }
 
 /*** Page table manipulation functions ***/
-
 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
 			     pgtbl_mod_mask *mask)
 {
@@ -2263,6 +2263,10 @@ static void __vunmap(const void *addr, int deallocate_pages)
 
 	kasan_poison_vmalloc(area->addr, get_vm_area_size(area));
 
+	if (IS_ENABLED(CONFIG_ARCH_HAS_IOREMAP_PHYS_HOOKS) &&
+	    area->flags & VM_IOREMAP)
+		iounmap_phys_range_hook(area->phys_addr, get_vm_area_size(area));
+
 	vm_remove_mappings(area, deallocate_pages);
 
 	if (deallocate_pages) {
-- 
GitLab


From f89d2055a3a26383698ff914e03a135adf8bfb6d Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 30 Jun 2021 13:31:56 +0100
Subject: [PATCH 2734/4878] ANDROID: arm64: Implement ioremap/iounmap hooks
 calling into KVM's MMIO guard

Implement the previously defined ioremap/iounmap hooks for arm64,
calling into KVM's MMIO guard if available.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I86a78f8941fb60078fb873a34c5eb32830a00259
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/mm/ioremap.c | 112 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)

diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c
index b5e83c46b23e7..a3910f91e0895 100644
--- a/arch/arm64/mm/ioremap.c
+++ b/arch/arm64/mm/ioremap.c
@@ -9,13 +9,125 @@
  * Copyright (C) 2012 ARM Ltd.
  */
 
+#define pr_fmt(fmt)	"ioremap: " fmt
+
 #include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
+#include <linux/slab.h>
 #include <linux/io.h>
+#include <linux/arm-smccc.h>
 
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>
+#include <asm/hypervisor.h>
+
+struct ioremap_guard_ref {
+	refcount_t	count;
+};
+
+static DEFINE_STATIC_KEY_FALSE(ioremap_guard_key);
+static DEFINE_XARRAY(ioremap_guard_array);
+static DEFINE_MUTEX(ioremap_guard_lock);
+
+void ioremap_phys_range_hook(phys_addr_t phys_addr, size_t size, pgprot_t prot)
+{
+	if (!static_branch_unlikely(&ioremap_guard_key))
+		return;
+
+	if (pfn_valid(__phys_to_pfn(phys_addr)))
+		return;
+
+	mutex_lock(&ioremap_guard_lock);
+
+	while (size) {
+		u64 pfn = phys_addr >> PAGE_SHIFT;
+		struct ioremap_guard_ref *ref;
+		struct arm_smccc_res res;
+
+		ref = xa_load(&ioremap_guard_array, pfn);
+		if (ref) {
+			refcount_inc(&ref->count);
+			goto next;
+		}
+
+		/*
+		 * It is acceptable for the allocation to fail, specially
+		 * if trying to ioremap something very early on, like with
+		 * earlycon, which happens long before kmem_cache_init.
+		 * This page will be permanently accessible, similar to a
+		 * saturated refcount.
+		 */
+		ref = kzalloc(sizeof(*ref), GFP_KERNEL);
+		if (ref) {
+			refcount_set(&ref->count, 1);
+			if (xa_err(xa_store(&ioremap_guard_array, pfn, ref,
+					    GFP_KERNEL))) {
+				kfree(ref);
+				ref = NULL;
+			}
+		}
+
+		arm_smccc_1_1_hvc(ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID,
+				  phys_addr, prot, &res);
+		if (res.a0 != SMCCC_RET_SUCCESS) {
+			pr_warn_ratelimited("Failed to register %llx\n",
+					    phys_addr);
+			xa_erase(&ioremap_guard_array, pfn);
+			kfree(ref);
+			goto out;
+		}
+
+	next:
+		size -= PAGE_SIZE;
+		phys_addr += PAGE_SIZE;
+	}
+out:
+	mutex_unlock(&ioremap_guard_lock);
+}
+
+void iounmap_phys_range_hook(phys_addr_t phys_addr, size_t size)
+{
+	if (!static_branch_unlikely(&ioremap_guard_key))
+		return;
+
+	VM_BUG_ON(phys_addr & ~PAGE_MASK || size & ~PAGE_MASK);
+
+	mutex_lock(&ioremap_guard_lock);
+
+	while (size) {
+		u64 pfn = phys_addr >> PAGE_SHIFT;
+		struct ioremap_guard_ref *ref;
+		struct arm_smccc_res res;
+
+		ref = xa_load(&ioremap_guard_array, pfn);
+		if (!ref) {
+			pr_warn_ratelimited("%llx not tracked, left mapped\n",
+					    phys_addr);
+			goto next;
+		}
+
+		if (!refcount_dec_and_test(&ref->count))
+			goto next;
+
+		xa_erase(&ioremap_guard_array, pfn);
+		kfree(ref);
+
+		arm_smccc_1_1_hvc(ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_UNMAP_FUNC_ID,
+				  phys_addr, &res);
+		if (res.a0 != SMCCC_RET_SUCCESS) {
+			pr_warn_ratelimited("Failed to unregister %llx\n",
+					    phys_addr);
+			goto out;
+		}
+
+	next:
+		size -= PAGE_SIZE;
+		phys_addr += PAGE_SIZE;
+	}
+out:
+	mutex_unlock(&ioremap_guard_lock);
+}
 
 static void __iomem *__ioremap_caller(phys_addr_t phys_addr, size_t size,
 				      pgprot_t prot, void *caller)
-- 
GitLab


From 8e744844c68569d2e20b6eede725cf8f968cdb81 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 29 Sep 2021 15:39:47 +0100
Subject: [PATCH 2735/4878] ANDROID: arm64: Enroll into KVM's MMIO guard if
 required

Should a guest desire to enroll into the MMIO guard, allow it to
do so with a command-line option.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Ia9a77f693531740500739693c52b4959abacafd4
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 .../admin-guide/kernel-parameters.txt         |  3 ++
 arch/arm64/Kconfig                            |  1 +
 arch/arm64/include/asm/hypervisor.h           |  1 +
 arch/arm64/kernel/setup.c                     |  2 +
 arch/arm64/mm/ioremap.c                       | 38 +++++++++++++++++++
 5 files changed, 45 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 013d2ebb8bf23..59c0fec296068 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2015,6 +2015,9 @@
 			1 - Bypass the IOMMU for DMA.
 			unset - Use value of CONFIG_IOMMU_DEFAULT_PASSTHROUGH.
 
+	ioremap_guard	[ARM64] enable the KVM MMIO guard functionality
+			if available.
+
 	io7=		[HW] IO7 for Marvel-based Alpha systems
 			See comment before marvel_specify_io7 in
 			arch/alpha/kernel/core_marvel.c.
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 1f519e3bbcd05..7690d3a65e312 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -20,6 +20,7 @@ config ARM64
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE
+	select ARCH_HAS_IOREMAP_PHYS_HOOKS
 	select ARCH_HAS_KCOV
 	select ARCH_HAS_KEEPINITRD
 	select ARCH_HAS_MEMBARRIER_SYNC_CORE
diff --git a/arch/arm64/include/asm/hypervisor.h b/arch/arm64/include/asm/hypervisor.h
index ef8e55e6f2f29..ee45ae14be27d 100644
--- a/arch/arm64/include/asm/hypervisor.h
+++ b/arch/arm64/include/asm/hypervisor.h
@@ -8,5 +8,6 @@ void kvm_init_hyp_services(void);
 bool kvm_arm_hyp_service_available(u32 func_id);
 void kvm_arm_init_hyp_services(void);
 void kvm_init_memshare_services(void);
+void kvm_init_ioremap_services(void);
 
 #endif
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index e953de92bc54e..549071115e1b9 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -49,6 +49,7 @@
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
 #include <asm/efi.h>
+#include <asm/hypervisor.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/mmu_context.h>
 
@@ -457,5 +458,6 @@ device_initcall(register_arm64_panic_block);
 
 void kvm_arm_init_hyp_services(void)
 {
+	kvm_init_ioremap_services();
 	kvm_init_memshare_services();
 }
diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c
index a3910f91e0895..948165adf071b 100644
--- a/arch/arm64/mm/ioremap.c
+++ b/arch/arm64/mm/ioremap.c
@@ -30,6 +30,44 @@ static DEFINE_STATIC_KEY_FALSE(ioremap_guard_key);
 static DEFINE_XARRAY(ioremap_guard_array);
 static DEFINE_MUTEX(ioremap_guard_lock);
 
+static bool ioremap_guard;
+static int __init ioremap_guard_setup(char *str)
+{
+	ioremap_guard = true;
+
+	return 0;
+}
+early_param("ioremap_guard", ioremap_guard_setup);
+
+void kvm_init_ioremap_services(void)
+{
+	struct arm_smccc_res res;
+
+	if (!ioremap_guard)
+		return;
+
+	/* We need all the functions to be implemented */
+	if (!kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_INFO) ||
+	    !kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_ENROLL) ||
+	    !kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_MAP) ||
+	    !kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_MMIO_GUARD_UNMAP))
+		return;
+
+	arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_INFO_FUNC_ID,
+			     0, 0, 0, &res);
+	if (res.a0 != PAGE_SIZE)
+		return;
+
+	arm_smccc_1_1_invoke(ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_ENROLL_FUNC_ID,
+			     &res);
+	if (res.a0 == SMCCC_RET_SUCCESS) {
+		static_branch_enable(&ioremap_guard_key);
+		pr_info("Using KVM MMIO guard for ioremap\n");
+	} else {
+		pr_warn("KVM MMIO guard registration failed (%ld)\n", res.a0);
+	}
+}
+
 void ioremap_phys_range_hook(phys_addr_t phys_addr, size_t size, pgprot_t prot)
 {
 	if (!static_branch_unlikely(&ioremap_guard_key))
-- 
GitLab


From f6edd58a0c69791ce3bb02ba18c54c0828d4e3a0 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 1 Jul 2021 09:30:45 +0100
Subject: [PATCH 2736/4878] ANDROID: arm64: Add a helper to retrieve the PTE of
 a fixmap

In order to transfer the early mapping state into KVM's MMIO
guard infrastucture, provide a small helper that will retrieve
the associated PTE.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: Iefc1c57d5e9476b718a8a68f60e562a57b09fb6a
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/fixmap.h |  2 ++
 arch/arm64/mm/mmu.c             | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index 4335800201c97..1aae625b944f0 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -105,6 +105,8 @@ void __init early_fixmap_init(void);
 
 extern void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot);
 
+extern pte_t *__get_fixmap_pte(enum fixed_addresses idx);
+
 #include <asm-generic/fixmap.h>
 
 #endif /* !__ASSEMBLY__ */
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 542f14c61fb3d..511e2f412c198 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1262,6 +1262,21 @@ void __set_fixmap(enum fixed_addresses idx,
 	}
 }
 
+pte_t *__get_fixmap_pte(enum fixed_addresses idx)
+{
+	unsigned long addr = __fix_to_virt(idx);
+	pte_t *ptep;
+
+	BUG_ON(idx <= FIX_HOLE || idx >= __end_of_fixed_addresses);
+
+	ptep = fixmap_pte(addr);
+
+	if (!pte_valid(*ptep))
+		return NULL;
+
+	return ptep;
+}
+
 void *__init fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot)
 {
 	const u64 dt_virt_base = __fix_to_virt(FIX_FDT);
-- 
GitLab


From ec2585f588a5bc60f63f1adb67bb9f4a6b899a29 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 1 Jul 2021 09:34:12 +0100
Subject: [PATCH 2737/4878] ANDROID: arm64: Register earlycon fixmap with the
 MMIO guard

On initialising the MMIO guard infrastructure, register the
earlycon mapping if present.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
Change-Id: I379387253d08e2414fa386a3360a45391da7d90d
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/mm/ioremap.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c
index 948165adf071b..d4a0a24fcfe16 100644
--- a/arch/arm64/mm/ioremap.c
+++ b/arch/arm64/mm/ioremap.c
@@ -39,6 +39,17 @@ static int __init ioremap_guard_setup(char *str)
 }
 early_param("ioremap_guard", ioremap_guard_setup);
 
+static void fixup_fixmap(void)
+{
+	pte_t *ptep = __get_fixmap_pte(FIX_EARLYCON_MEM_BASE);
+
+	if (!ptep)
+		return;
+
+	ioremap_phys_range_hook(__pte_to_phys(*ptep), PAGE_SIZE,
+				__pgprot(pte_val(*ptep) & PTE_ATTRINDX_MASK));
+}
+
 void kvm_init_ioremap_services(void)
 {
 	struct arm_smccc_res res;
@@ -62,6 +73,7 @@ void kvm_init_ioremap_services(void)
 			     &res);
 	if (res.a0 == SMCCC_RET_SUCCESS) {
 		static_branch_enable(&ioremap_guard_key);
+		fixup_fixmap();
 		pr_info("Using KVM MMIO guard for ioremap\n");
 	} else {
 		pr_warn("KVM MMIO guard registration failed (%ld)\n", res.a0);
-- 
GitLab


From d01a90c8588976698695ca275255011f8ec71e1c Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 5 Jan 2022 16:20:21 +0000
Subject: [PATCH 2738/4878] ANDROID: KVM: arm64: Create EL2 copy of
 __icache_flags for pKVM instead of alias

Using an alias of the host's `__icache_flags` variable at EL2 for pKVM
is risky, as it provides the host with a mechanism to elide cache
maintenance of guest pages by causing functions such as icache_is_vpipt()
to erroneously return false.

Create a private copy of the __icache_flags variable at EL2 and
initialise it using the host's version during pKVM init.

Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: I595f11d1e336dadae0eb82222e4da79a1069012a
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_hyp.h | 1 +
 arch/arm64/kernel/image-vars.h   | 3 ---
 arch/arm64/kvm/arm.c             | 1 +
 arch/arm64/kvm/hyp/nvhe/pkvm.c   | 3 +++
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 1ac15eb60f8ee..0e18b4716d7d4 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -123,4 +123,5 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 
+extern unsigned long kvm_nvhe_sym(__icache_flags);
 #endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index c96a9a0043bf4..e474589e9a9e9 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -76,9 +76,6 @@ KVM_NVHE_ALIAS(nvhe_hyp_panic_handler);
 /* Vectors installed by hyp-init on reset HVC. */
 KVM_NVHE_ALIAS(__hyp_stub_vectors);
 
-/* Kernel symbol used by icache_is_vpipt(). */
-KVM_NVHE_ALIAS(__icache_flags);
-
 /* Kernel symbols needed for cpus_have_final/const_caps checks. */
 KVM_NVHE_ALIAS(arm64_const_caps_ready);
 KVM_NVHE_ALIAS(cpu_hwcap_keys);
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 7f42b4851366a..76215b22285b6 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1989,6 +1989,7 @@ static int kvm_hyp_init_protection(u32 hyp_va_bits)
 	kvm_nvhe_sym(id_aa64mmfr0_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
 	kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
 	kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR2_EL1);
+	kvm_nvhe_sym(__icache_flags) = __icache_flags;
 
 	ret = create_hyp_mappings(addr, addr + hyp_mem_size, PAGE_HYP);
 	if (ret)
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 6583176b7b9d7..cd844471b2210 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -21,6 +21,9 @@
 #include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
+/* Used by icache_is_vpipt(). */
+unsigned long __icache_flags;
+
 /*
  * Set trap register values based on features in ID_AA64PFR0.
  */
-- 
GitLab


From c02620fb25914382a898928524448d3cd3df1e89 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 5 Jan 2022 14:10:54 +0000
Subject: [PATCH 2739/4878] ANDROID: KVM: arm64: relay entropy requests from
 protected guests directly to secure

As pKVM does not trust the host, it should not be involved in the
handling of, or be able to observe the response to entropy requests
issues by protected guests.

When an SMC-based implementation of the ARM SMCCC TRNG interface is
present, pass any HVC-based requests directly on to the secure firmware.

Co-developed-by: Ard Biesheuvel <ardb@google.com>
Signed-off-by: Ard Biesheuvel <ardb@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Bug: 209580772
Change-Id: Ica492ce49fd059a62ecc31bb7ac13c9adb773a08
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 arch/arm64/include/asm/kvm_hyp.h |  1 +
 arch/arm64/kvm/arm.c             |  1 +
 arch/arm64/kvm/hyp/nvhe/pkvm.c   | 34 ++++++++++++++++++++++++++++++++
 3 files changed, 36 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 0e18b4716d7d4..2f99074111aa2 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -124,4 +124,5 @@ extern u64 kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val);
 extern u64 kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val);
 
 extern unsigned long kvm_nvhe_sym(__icache_flags);
+extern bool kvm_nvhe_sym(smccc_trng_available);
 #endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 76215b22285b6..37dbfbd695a9a 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1990,6 +1990,7 @@ static int kvm_hyp_init_protection(u32 hyp_va_bits)
 	kvm_nvhe_sym(id_aa64mmfr1_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
 	kvm_nvhe_sym(id_aa64mmfr2_el1_sys_val) = read_sanitised_ftr_reg(SYS_ID_AA64MMFR2_EL1);
 	kvm_nvhe_sym(__icache_flags) = __icache_flags;
+	kvm_nvhe_sym(smccc_trng_available) = smccc_trng_available;
 
 	ret = create_hyp_mappings(addr, addr + hyp_mem_size, PAGE_HYP);
 	if (ret)
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index cd844471b2210..57e1304c37134 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -1137,6 +1137,35 @@ static bool pkvm_install_ioguard_page(struct kvm_vcpu *vcpu, u64 *exit_code)
 	return true;
 }
 
+bool smccc_trng_available;
+
+static bool pkvm_forward_trng(struct kvm_vcpu *vcpu)
+{
+	u32 fn = smccc_get_function(vcpu);
+	struct arm_smccc_res res;
+	unsigned long arg1 = 0;
+
+	/*
+	 * Forward TRNG calls to EL3, as we can't trust the host to handle
+	 * these for us.
+	 */
+	switch (fn) {
+	case ARM_SMCCC_TRNG_FEATURES:
+	case ARM_SMCCC_TRNG_RND32:
+	case ARM_SMCCC_TRNG_RND64:
+		arg1 = smccc_get_arg1(vcpu);
+		fallthrough;
+	case ARM_SMCCC_TRNG_VERSION:
+	case ARM_SMCCC_TRNG_GET_UUID:
+		arm_smccc_1_1_smc(fn, arg1, &res);
+		smccc_set_retval(vcpu, res.a0, res.a1, res.a2, res.a3);
+		memzero_explicit(&res, sizeof(res));
+		break;
+	}
+
+	return true;
+}
+
 /*
  * Handler for protected VM HVC calls.
  *
@@ -1193,6 +1222,11 @@ bool kvm_handle_pvm_hvc64(struct kvm_vcpu *vcpu, u64 *exit_code)
 		return pkvm_memshare_call(vcpu, exit_code);
 	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
 		return pkvm_memunshare_call(vcpu);
+	case ARM_SMCCC_TRNG_VERSION ... ARM_SMCCC_TRNG_RND32:
+	case ARM_SMCCC_TRNG_RND64:
+		if (smccc_trng_available)
+			return pkvm_forward_trng(vcpu);
+		break;
 	default:
 		return pkvm_handle_psci(vcpu);
 	}
-- 
GitLab


From 3d914125b2487266b27370d8c8ea3eb9b0d6836b Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 4 Jan 2022 10:06:44 +0000
Subject: [PATCH 2740/4878] FROMLIST: dt-bindings: reserved-memory: Open
 Profile for DICE

Add DeviceTree bindings for Open Profile for DICE, an open protocol for
measured boot. Firmware uses DICE to measure the hardware/software
combination and generates Compound Device Identifier (CDI) certificates.
These are stored in memory and the buffer is described in the DT as
a reserved memory region compatible with 'google,open-dice'.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Link: https://lore.kernel.org/r/20220104100645.1810028-2-dbrazdil@google.com
Bug: 198197082
Bug: 209580772
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If318ad91ef1ae26ff639f99a4349e8c737d286b6
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 .../reserved-memory/google,open-dice.yaml     | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml

diff --git a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
new file mode 100644
index 0000000000000..345c4dc172c08
--- /dev/null
+++ b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reserved-memory/google,open-dice.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Open Profile for DICE Device Tree Bindings
+
+description: |
+  This binding represents a reserved memory region containing data
+  generated by the Open Profile for DICE protocol.
+
+  See https://pigweed.googlesource.com/open-dice/
+
+maintainers:
+  - David Brazdil <dbrazdil@google.com>
+
+allOf:
+  - $ref: "reserved-memory.yaml"
+
+properties:
+  compatible:
+    const: google,open-dice
+
+  reg:
+    description: page-aligned region of memory containing DICE data
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    reserved-memory {
+        #address-cells = <2>;
+        #size-cells = <1>;
+
+        dice: dice@12340000 {
+            compatible = "google,open-dice";
+            reg = <0x00 0x12340000 0x2000>;
+            no-map;
+        };
+    };
-- 
GitLab


From d1109f05c395c2a0401e12f72acb1f976ef94578 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 4 Jan 2022 10:06:45 +0000
Subject: [PATCH 2741/4878] BACKPORT: FROMLIST: misc: open-dice: Add driver to
 expose DICE data to userspace

Open Profile for DICE is an open protocol for measured boot compatible
with the Trusted Computing Group's Device Identifier Composition
Engine (DICE) specification. The generated Compound Device Identifier
(CDI) certificates represent the hardware/software combination measured
by DICE, and can be used for remote attestation and sealing.

Add a driver that exposes reserved memory regions populated by firmware
with DICE CDIs and exposes them to userspace via a character device.

Userspace obtains the memory region's size from read() and calls mmap()
to create a mapping of the memory region in its address space. The
mapping is not allowed to be write+shared, giving userspace a guarantee
that the data were not overwritten by another process.

Userspace can also call write(), which triggers a wipe of the DICE data
by the driver. Because both the kernel and userspace mappings use
write-combine semantics, all clients observe the memory as zeroed after
the syscall has returned.

Acked-by: Rob Herring <robh@kernel.org>
Cc: Andrew Scull <ascull@google.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: David Brazdil <dbrazdil@google.com>
Link: https://lore.kernel.org/r/20220104100645.1810028-3-dbrazdil@google.com
Bug: 198197082
[willdeacon@: Fixed context conflicts in reserved_mem_matches[] and Makefile]
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 209580772
Change-Id: If1160c8cc3a39ea822e089d1b80c837aec8075fa
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/misc/Kconfig     |  12 +++
 drivers/misc/Makefile    |   1 +
 drivers/misc/open-dice.c | 188 +++++++++++++++++++++++++++++++++++++++
 drivers/of/platform.c    |   1 +
 4 files changed, 202 insertions(+)
 create mode 100644 drivers/misc/open-dice.c

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2c8929a441220..2b9572a6d114b 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -481,6 +481,18 @@ config HISI_HIKEY_USB
 	  switching between the dual-role USB-C port and the USB-A host ports
 	  using only one USB controller.
 
+config OPEN_DICE
+	tristate "Open Profile for DICE driver"
+	depends on OF_RESERVED_MEM
+	help
+	  This driver exposes a DICE reserved memory region to userspace via
+	  a character device. The memory region contains Compound Device
+	  Identifiers (CDIs) generated by firmware as an output of DICE
+	  measured boot flow. Userspace can use CDIs for remote attestation
+	  and sealing.
+
+	  If unsure, say N.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index aecaaed87a357..2ec634354cf55 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -58,3 +58,4 @@ obj-$(CONFIG_UACCE)		+= uacce/
 obj-$(CONFIG_XILINX_SDFEC)	+= xilinx_sdfec.o
 obj-$(CONFIG_HISI_HIKEY_USB)	+= hisi_hikey_usb.o
 obj-$(CONFIG_UID_SYS_STATS)	+= uid_sys_stats.o
+obj-$(CONFIG_OPEN_DICE)		+= open-dice.o
diff --git a/drivers/misc/open-dice.c b/drivers/misc/open-dice.c
new file mode 100644
index 0000000000000..f1819f9511737
--- /dev/null
+++ b/drivers/misc/open-dice.c
@@ -0,0 +1,188 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ *
+ * Driver for Open Profile for DICE.
+ *
+ * This driver takes ownership of a reserved memory region containing data
+ * generated by the Open Profile for DICE measured boot protocol. The memory
+ * contents are not interpreted by the kernel but can be mapped into a userspace
+ * process via a misc device. Userspace can also request a wipe of the memory.
+ *
+ * Userspace can access the data with (w/o error handling):
+ *
+ *     fd = open("/dev/open-dice0", O_RDWR);
+ *     read(fd, &size, sizeof(unsigned long));
+ *     data = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
+ *     write(fd, NULL, 0); // wipe
+ *     close(fd);
+ */
+
+#include <linux/io.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/platform_device.h>
+
+#define DRIVER_NAME "open-dice"
+
+struct open_dice_drvdata {
+	spinlock_t lock;
+	char name[16];
+	struct reserved_mem *rmem;
+	struct miscdevice misc;
+};
+
+static inline struct open_dice_drvdata *to_open_dice_drvdata(struct file *filp)
+{
+	return container_of(filp->private_data, struct open_dice_drvdata, misc);
+}
+
+static int open_dice_wipe(struct open_dice_drvdata *drvdata)
+{
+	void *kaddr;
+
+	spin_lock(&drvdata->lock);
+	kaddr = devm_memremap(drvdata->misc.this_device, drvdata->rmem->base,
+			      drvdata->rmem->size, MEMREMAP_WC);
+	if (IS_ERR(kaddr)) {
+		spin_unlock(&drvdata->lock);
+		return PTR_ERR(kaddr);
+	}
+
+	memset(kaddr, 0, drvdata->rmem->size);
+	devm_memunmap(drvdata->misc.this_device, kaddr);
+	spin_unlock(&drvdata->lock);
+	return 0;
+}
+
+/*
+ * Copies the size of the reserved memory region to the user-provided buffer.
+ */
+static ssize_t open_dice_read(struct file *filp, char __user *ptr, size_t len,
+			      loff_t *off)
+{
+	unsigned long val = to_open_dice_drvdata(filp)->rmem->size;
+
+	return simple_read_from_buffer(ptr, len, off, &val, sizeof(val));
+}
+
+/*
+ * Triggers a wipe of the reserved memory region. The user-provided pointer
+ * is never dereferenced.
+ */
+static ssize_t open_dice_write(struct file *filp, const char __user *ptr,
+			       size_t len, loff_t *off)
+{
+	if (open_dice_wipe(to_open_dice_drvdata(filp)))
+		return -EIO;
+
+	/* Consume the input buffer. */
+	return len;
+}
+
+/*
+ * Creates a mapping of the reserved memory region in user address space.
+ */
+static int open_dice_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct open_dice_drvdata *drvdata = to_open_dice_drvdata(filp);
+
+	/* Do not allow userspace to modify the underlying data. */
+	if ((vma->vm_flags & VM_WRITE) && (vma->vm_flags & VM_SHARED))
+		return -EPERM;
+
+	/* Create write-combine mapping so all clients observe a wipe. */
+	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+	vma->vm_flags |= VM_DONTCOPY | VM_DONTDUMP;
+	return vm_iomap_memory(vma, drvdata->rmem->base, drvdata->rmem->size);
+}
+
+static const struct file_operations open_dice_fops = {
+	.owner = THIS_MODULE,
+	.read = open_dice_read,
+	.write = open_dice_write,
+	.mmap = open_dice_mmap,
+};
+
+static int __init open_dice_probe(struct platform_device *pdev)
+{
+	static unsigned int dev_idx;
+	struct device *dev = &pdev->dev;
+	struct reserved_mem *rmem;
+	struct open_dice_drvdata *drvdata;
+	int ret;
+
+	rmem = of_reserved_mem_lookup(dev->of_node);
+	if (!rmem) {
+		dev_err(dev, "failed to lookup reserved memory\n");
+		return -EINVAL;
+	}
+
+	if (!rmem->size || (rmem->size > ULONG_MAX)) {
+		dev_err(dev, "invalid memory region size\n");
+		return -EINVAL;
+	}
+
+	if (!PAGE_ALIGNED(rmem->base) || !PAGE_ALIGNED(rmem->size)) {
+		dev_err(dev, "memory region must be page-aligned\n");
+		return -EINVAL;
+	}
+
+	drvdata = devm_kmalloc(dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
+	*drvdata = (struct open_dice_drvdata){
+		.lock = __SPIN_LOCK_UNLOCKED(drvdata->lock),
+		.rmem = rmem,
+		.misc = (struct miscdevice){
+			.parent	= dev,
+			.name	= drvdata->name,
+			.minor	= MISC_DYNAMIC_MINOR,
+			.fops	= &open_dice_fops,
+			.mode	= 0600,
+		},
+	};
+
+	/* Index overflow check not needed, misc_register() will fail. */
+	snprintf(drvdata->name, sizeof(drvdata->name), DRIVER_NAME"%u", dev_idx++);
+
+	ret = misc_register(&drvdata->misc);
+	if (ret) {
+		dev_err(dev, "failed to register misc device '%s': %d\n",
+			drvdata->name, ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, drvdata);
+	return 0;
+}
+
+static int open_dice_remove(struct platform_device *pdev)
+{
+	struct open_dice_drvdata *drvdata = platform_get_drvdata(pdev);
+
+	misc_deregister(&drvdata->misc);
+	return 0;
+}
+
+static const struct of_device_id open_dice_of_match[] = {
+	{ .compatible = "google,open-dice" },
+	{},
+};
+
+static struct platform_driver open_dice_driver = {
+	.remove = open_dice_remove,
+	.driver = {
+		.name = DRIVER_NAME,
+		.of_match_table = open_dice_of_match,
+	},
+};
+
+module_platform_driver_probe(open_dice_driver, open_dice_probe);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("David Brazdil <dbrazdil@google.com>");
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 79bd5f5a1bf17..eb26896ee4c7a 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -511,6 +511,7 @@ static const struct of_device_id reserved_mem_matches[] = {
 	{ .compatible = "qcom,rmtfs-mem" },
 	{ .compatible = "qcom,cmd-db" },
 	{ .compatible = "ramoops" },
+	{ .compatible = "google,open-dice" },
 	{}
 };
 
-- 
GitLab


From 254d99979832473ec8c9c4af432f8728948a1d10 Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Wed, 12 Jan 2022 01:03:40 +0000
Subject: [PATCH 2742/4878] ANDROID: GKI: Do not force select MODULE_SIG_ALL

CONFIG_MODULE_SIG_ALL needs to be set for gki_defconig,
but will require an override via device fragments
to avoid signing the vendor modules at build-time.

It defaults to 'y' so no need to explicitly set for
gki_defconfig.

Bug: 200082547
Bug: 214445388
Fixes: 9ab6a242258a ("ANDROID: GKI: Add module load time protected symbol lookup")
Test: TH, manual builds including P21 mainline
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Iafc0936b5e7bfb781b28642d1ec233a7fcf85f09
---
 init/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index bdf93d3bf9c3d..d3fe22d6e087b 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -2231,7 +2231,6 @@ config MODULE_SIG_FORCE
 config MODULE_SIG_PROTECT
 	bool "Android GKI module protection"
 	depends on MODULE_SIG && !MODULE_SIG_FORCE
-	select MODULE_SIG_ALL
 	help
 	  Enables Android GKI symbol and export protection support.
 
-- 
GitLab


From 39220e855b9bdbd57945ead04f721a9e87737dd7 Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Wed, 12 Jan 2022 01:04:39 +0000
Subject: [PATCH 2743/4878] ANDROID: GKI: Enable config for module signing

Enabled signed module and Android gki module symbol
protection support.

Bug: 200082547
Bug: 214445388
Test: TH
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: I0ecfb1df8437c67c00a5bb9bf813d27ff153a2cf
---
 arch/arm64/configs/gki_defconfig | 2 ++
 arch/x86/configs/gki_defconfig   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 460f739437ee5..d5c5ed23294a7 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -100,6 +100,8 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_SIG_PROTECT=y
 CONFIG_BLK_CGROUP_IOCOST=y
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index bfb97f17d0975..0e46ce5459ad5 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -76,6 +76,8 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SCMVERSION=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_SIG_PROTECT=y
 CONFIG_BLK_CGROUP_IOCOST=y
 CONFIG_BLK_CGROUP_IOPRIO=y
 CONFIG_BLK_INLINE_ENCRYPTION=y
-- 
GitLab


From 2da3b12bc02b2cbae564a8cd75573f7d85ee461e Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Wed, 12 Jan 2022 01:07:12 +0000
Subject: [PATCH 2744/4878] ANDROID: GKI: Enable system_dlkm build for gki

Update GKI build configs to build system_dlkm.img.

Add an empty system_dlkm modules list file at:
android/gki_system_dlkm_modules

Bug: 200082547
Bug: 214445388
Test: TH
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Ia11b48d6033a39479d71c90159c74809a874893d
---
 android/gki_system_dlkm_modules | 0
 build.config.gki.aarch64        | 3 +++
 build.config.gki.x86_64         | 2 ++
 3 files changed, 5 insertions(+)
 create mode 100644 android/gki_system_dlkm_modules

diff --git a/android/gki_system_dlkm_modules b/android/gki_system_dlkm_modules
new file mode 100644
index 0000000000000..e69de29bb2d1d
diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
index a20dc711978c5..5439e64e4c03d 100644
--- a/build.config.gki.aarch64
+++ b/build.config.gki.aarch64
@@ -23,6 +23,9 @@ arch/arm64/boot/Image.lz4
 
 TRIM_NONLISTED_KMI=${TRIM_NONLISTED_KMI:-1}
 KMI_SYMBOL_LIST_STRICT_MODE=${KMI_SYMBOL_LIST_STRICT_MODE:-1}
+
+BUILD_SYSTEM_DLKM=1
+MODULES_LIST=${ROOT_DIR}/${KERNEL_DIR}/android/gki_system_dlkm_modules
 MODULES_ORDER=android/gki_aarch64_modules
 
 if [ -n "${GKI_DEFCONFIG_FRAGMENT}" ]; then
diff --git a/build.config.gki.x86_64 b/build.config.gki.x86_64
index 0e04fc692df29..b8f7773108e40 100644
--- a/build.config.gki.x86_64
+++ b/build.config.gki.x86_64
@@ -2,3 +2,5 @@
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.x86_64
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki
 
+BUILD_SYSTEM_DLKM=1
+MODULES_LIST=${ROOT_DIR}/${KERNEL_DIR}/android/gki_system_dlkm_modules
-- 
GitLab


From 049a8b54d34c0e9ac3d33305ec657052f89fb44c Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Sat, 8 Jan 2022 22:17:12 +0000
Subject: [PATCH 2745/4878] ANDROID: GKI: Disable security lockdown for
 unsigned modules

By default with SELinux enabled behavior for unsigned
module loading is same as sig_enforce=1. This causes
loading of unsigned modules fail. All modules in Android
GKI are unsigned except GKI modules. Do not prevent
module loading in case of CONFIG_SIG_MODULE_PROTECT; which
was introduced to change behavior of sig_enforce to allow
unsigned modules but not access to protected symbols.

Bug: 200082547
Bug: 214445388
Fixes: 9ab6a242258a ("ANDROID: GKI: Add module load time protected symbol lookup")
Test: TreeHugger
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: Iab3113d706cbd7db7a5684897bcafd5671a6d424
---
 kernel/module.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/kernel/module.c b/kernel/module.c
index 4085b869f4549..36e418c3c229d 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2979,7 +2979,15 @@ static int module_sig_check(struct load_info *info, int flags)
 		return -EKEYREJECTED;
 	}
 
+/*
+ * ANDROID: GKI: Do not prevent loading of unsigned modules;
+ * as all modules except GKI modules are not signed.
+ */
+#ifndef CONFIG_MODULE_SIG_PROTECT
 	return security_locked_down(LOCKDOWN_MODULE_SIGNATURE);
+#else
+	return 0;
+#endif
 }
 #else /* !CONFIG_MODULE_SIG */
 static int module_sig_check(struct load_info *info, int flags)
-- 
GitLab


From c39d68ab38369265a73a34d8ffb189221a6e230f Mon Sep 17 00:00:00 2001
From: Guoqing Jiang <jgq516@gmail.com>
Date: Tue, 25 May 2021 17:46:16 +0800
Subject: [PATCH 2746/4878] md: revert io stats accounting

commit ad3fc798800fb7ca04c1dfc439dba946818048d8 upstream.

The commit 41d2d848e5c0 ("md: improve io stats accounting") could cause
double fault problem per the report [1], and also it is not correct to
change ->bi_end_io if md don't own it, so let's revert it.

And io stats accounting will be replemented in later commits.

[1]. https://lore.kernel.org/linux-raid/3bf04253-3fad-434a-63a7-20214e38cf26@gmail.com/T/#t

Fixes: 41d2d848e5c0 ("md: improve io stats accounting")
Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Signed-off-by: Song Liu <song@kernel.org>
[GM: backport to 5.10-stable]
Signed-off-by: Guillaume Morin <guillaume@morinfr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/md.c | 57 +++++++++++--------------------------------------
 drivers/md/md.h |  1 -
 2 files changed, 12 insertions(+), 46 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2069b16b50eca..cc3876500c4b2 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -459,34 +459,12 @@ check_suspended:
 }
 EXPORT_SYMBOL(md_handle_request);
 
-struct md_io {
-	struct mddev *mddev;
-	bio_end_io_t *orig_bi_end_io;
-	void *orig_bi_private;
-	unsigned long start_time;
-	struct hd_struct *part;
-};
-
-static void md_end_io(struct bio *bio)
-{
-	struct md_io *md_io = bio->bi_private;
-	struct mddev *mddev = md_io->mddev;
-
-	part_end_io_acct(md_io->part, bio, md_io->start_time);
-
-	bio->bi_end_io = md_io->orig_bi_end_io;
-	bio->bi_private = md_io->orig_bi_private;
-
-	mempool_free(md_io, &mddev->md_io_pool);
-
-	if (bio->bi_end_io)
-		bio->bi_end_io(bio);
-}
-
 static blk_qc_t md_submit_bio(struct bio *bio)
 {
 	const int rw = bio_data_dir(bio);
+	const int sgrp = op_stat_group(bio_op(bio));
 	struct mddev *mddev = bio->bi_disk->private_data;
+	unsigned int sectors;
 
 	if (mddev == NULL || mddev->pers == NULL) {
 		bio_io_error(bio);
@@ -507,26 +485,21 @@ static blk_qc_t md_submit_bio(struct bio *bio)
 		return BLK_QC_T_NONE;
 	}
 
-	if (bio->bi_end_io != md_end_io) {
-		struct md_io *md_io;
-
-		md_io = mempool_alloc(&mddev->md_io_pool, GFP_NOIO);
-		md_io->mddev = mddev;
-		md_io->orig_bi_end_io = bio->bi_end_io;
-		md_io->orig_bi_private = bio->bi_private;
-
-		bio->bi_end_io = md_end_io;
-		bio->bi_private = md_io;
-
-		md_io->start_time = part_start_io_acct(mddev->gendisk,
-						       &md_io->part, bio);
-	}
-
+	/*
+	 * save the sectors now since our bio can
+	 * go away inside make_request
+	 */
+	sectors = bio_sectors(bio);
 	/* bio could be mergeable after passing to underlayer */
 	bio->bi_opf &= ~REQ_NOMERGE;
 
 	md_handle_request(mddev, bio);
 
+	part_stat_lock();
+	part_stat_inc(&mddev->gendisk->part0, ios[sgrp]);
+	part_stat_add(&mddev->gendisk->part0, sectors[sgrp], sectors);
+	part_stat_unlock();
+
 	return BLK_QC_T_NONE;
 }
 
@@ -5636,7 +5609,6 @@ static void md_free(struct kobject *ko)
 
 	bioset_exit(&mddev->bio_set);
 	bioset_exit(&mddev->sync_set);
-	mempool_exit(&mddev->md_io_pool);
 	kfree(mddev);
 }
 
@@ -5732,11 +5704,6 @@ static int md_alloc(dev_t dev, char *name)
 		 */
 		mddev->hold_active = UNTIL_STOP;
 
-	error = mempool_init_kmalloc_pool(&mddev->md_io_pool, BIO_POOL_SIZE,
-					  sizeof(struct md_io));
-	if (error)
-		goto abort;
-
 	error = -ENOMEM;
 	mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
 	if (!mddev->queue)
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 2175a5ac4f7c6..c94811cf26004 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -487,7 +487,6 @@ struct mddev {
 	struct bio_set			sync_set; /* for sync operations like
 						   * metadata and bitmap writes
 						   */
-	mempool_t			md_io_pool;
 
 	/* Generic flush handling.
 	 * The last to finish preflush schedules a worker to submit
-- 
GitLab


From c84fbba8a9458aaaa7d0ccae51ef05739ded54fb Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <frederic@kernel.org>
Date: Wed, 1 Dec 2021 16:19:44 +0100
Subject: [PATCH 2747/4878] workqueue: Fix unbind_workers() VS
 wq_worker_running() race

commit 07edfece8bcb0580a1828d939e6f8d91a8603eb2 upstream.

At CPU-hotplug time, unbind_worker() may preempt a worker while it is
waking up. In that case the following scenario can happen:

        unbind_workers()                     wq_worker_running()
        --------------                      -------------------
        	                      if (!(worker->flags & WORKER_NOT_RUNNING))
        	                          //PREEMPTED by unbind_workers
        worker->flags |= WORKER_UNBOUND;
        [...]
        atomic_set(&pool->nr_running, 0);
        //resume to worker
		                              atomic_inc(&worker->pool->nr_running);

After unbind_worker() resets pool->nr_running, the value is expected to
remain 0 until the pool ever gets rebound in case cpu_up() is called on
the target CPU in the future. But here the race leaves pool->nr_running
with a value of 1, triggering the following warning when the worker goes
idle:

	WARNING: CPU: 3 PID: 34 at kernel/workqueue.c:1823 worker_enter_idle+0x95/0xc0
	Modules linked in:
	CPU: 3 PID: 34 Comm: kworker/3:0 Not tainted 5.16.0-rc1+ #34
	Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba527-rebuilt.opensuse.org 04/01/2014
	Workqueue:  0x0 (rcu_par_gp)
	RIP: 0010:worker_enter_idle+0x95/0xc0
	Code: 04 85 f8 ff ff ff 39 c1 7f 09 48 8b 43 50 48 85 c0 74 1b 83 e2 04 75 99 8b 43 34 39 43 30 75 91 8b 83 00 03 00 00 85 c0 74 87 <0f> 0b 5b c3 48 8b 35 70 f1 37 01 48 8d 7b 48 48 81 c6 e0 93  0
	RSP: 0000:ffff9b7680277ed0 EFLAGS: 00010086
	RAX: 00000000ffffffff RBX: ffff93465eae9c00 RCX: 0000000000000000
	RDX: 0000000000000000 RSI: ffff9346418a0000 RDI: ffff934641057140
	RBP: ffff934641057170 R08: 0000000000000001 R09: ffff9346418a0080
	R10: ffff9b768027fdf0 R11: 0000000000002400 R12: ffff93465eae9c20
	R13: ffff93465eae9c20 R14: ffff93465eae9c70 R15: ffff934641057140
	FS:  0000000000000000(0000) GS:ffff93465eac0000(0000) knlGS:0000000000000000
	CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
	CR2: 0000000000000000 CR3: 000000001cc0c000 CR4: 00000000000006e0
	DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
	DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
	Call Trace:
	  <TASK>
	  worker_thread+0x89/0x3d0
	  ? process_one_work+0x400/0x400
	  kthread+0x162/0x190
	  ? set_kthread_struct+0x40/0x40
	  ret_from_fork+0x22/0x30
	  </TASK>

Also due to this incorrect "nr_running == 1", further queued work may
end up not being served, because no worker is awaken at work insert time.
This raises rcutorture writer stalls for example.

Fix this with disabling preemption in the right place in
wq_worker_running().

It's worth noting that if the worker migrates and runs concurrently with
unbind_workers(), it is guaranteed to see the WORKER_UNBOUND flag update
due to set_cpus_allowed_ptr() acquiring/releasing rq->lock.

Fixes: 6d25be5782e4 ("sched/core, workqueues: Distangle worker accounting from rq lock")
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/workqueue.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index d02073b9d56e2..fdf5fa4bf4448 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -850,8 +850,17 @@ void wq_worker_running(struct task_struct *task)
 
 	if (!worker->sleeping)
 		return;
+
+	/*
+	 * If preempted by unbind_workers() between the WORKER_NOT_RUNNING check
+	 * and the nr_running increment below, we may ruin the nr_running reset
+	 * and leave with an unexpected pool->nr_running == 1 on the newly unbound
+	 * pool. Protect against such race.
+	 */
+	preempt_disable();
 	if (!(worker->flags & WORKER_NOT_RUNNING))
 		atomic_inc(&worker->pool->nr_running);
+	preempt_enable();
 	worker->sleeping = 0;
 }
 
-- 
GitLab


From 35ab8c9085b0af847df7fac9571ccd26d9f0f513 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Tue, 4 Jan 2022 14:16:03 +0000
Subject: [PATCH 2748/4878] bpf: Fix out of bounds access from invalid
 *_or_null type verification

[ no upstream commit given implicitly fixed through the larger refactoring
  in c25b2ae136039ffa820c26138ed4a5e5f3ab3841 ]

While auditing some other code, I noticed missing checks inside the pointer
arithmetic simulation, more specifically, adjust_ptr_min_max_vals(). Several
*_OR_NULL types are not rejected whereas they are _required_ to be rejected
given the expectation is that they get promoted into a 'real' pointer type
for the success case, that is, after an explicit != NULL check.

One case which stands out and is accessible from unprivileged (iff enabled
given disabled by default) is BPF ring buffer. From crafting a PoC, the NULL
check can be bypassed through an offset, and its id marking will then lead
to promotion of mem_or_null to a mem type.

bpf_ringbuf_reserve() helper can trigger this case through passing of reserved
flags, for example.

  func#0 @0
  0: R1=ctx(id=0,off=0,imm=0) R10=fp0
  0: (7a) *(u64 *)(r10 -8) = 0
  1: R1=ctx(id=0,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm
  1: (18) r1 = 0x0
  3: R1_w=map_ptr(id=0,off=0,ks=0,vs=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm
  3: (b7) r2 = 8
  4: R1_w=map_ptr(id=0,off=0,ks=0,vs=0,imm=0) R2_w=invP8 R10=fp0 fp-8_w=mmmmmmmm
  4: (b7) r3 = 0
  5: R1_w=map_ptr(id=0,off=0,ks=0,vs=0,imm=0) R2_w=invP8 R3_w=invP0 R10=fp0 fp-8_w=mmmmmmmm
  5: (85) call bpf_ringbuf_reserve#131
  6: R0_w=mem_or_null(id=2,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  6: (bf) r6 = r0
  7: R0_w=mem_or_null(id=2,ref_obj_id=2,off=0,imm=0) R6_w=mem_or_null(id=2,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  7: (07) r0 += 1
  8: R0_w=mem_or_null(id=2,ref_obj_id=2,off=1,imm=0) R6_w=mem_or_null(id=2,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  8: (15) if r0 == 0x0 goto pc+4
   R0_w=mem(id=0,ref_obj_id=0,off=0,imm=0) R6_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  9: R0_w=mem(id=0,ref_obj_id=0,off=0,imm=0) R6_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  9: (62) *(u32 *)(r6 +0) = 0
   R0_w=mem(id=0,ref_obj_id=0,off=0,imm=0) R6_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  10: R0_w=mem(id=0,ref_obj_id=0,off=0,imm=0) R6_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  10: (bf) r1 = r6
  11: R0_w=mem(id=0,ref_obj_id=0,off=0,imm=0) R1_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R6_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  11: (b7) r2 = 0
  12: R0_w=mem(id=0,ref_obj_id=0,off=0,imm=0) R1_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R2_w=invP0 R6_w=mem(id=0,ref_obj_id=2,off=0,imm=0) R10=fp0 fp-8_w=mmmmmmmm refs=2
  12: (85) call bpf_ringbuf_submit#132
  13: R6=invP(id=0) R10=fp0 fp-8=mmmmmmmm
  13: (b7) r0 = 0
  14: R0_w=invP0 R6=invP(id=0) R10=fp0 fp-8=mmmmmmmm
  14: (95) exit

  from 8 to 13: safe
  processed 15 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
  OK

All three commits, that is b121b341e598 ("bpf: Add PTR_TO_BTF_ID_OR_NULL support"),
457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it"), and the
afbf21dce668 ("bpf: Support readonly/readwrite buffers in verifier") suffer the same
cause and their *_OR_NULL type pendants must be rejected in adjust_ptr_min_max_vals().

Make the test more robust by reusing reg_type_may_be_null() helper such that we catch
all *_OR_NULL types we have today and in future.

Note that pointer arithmetic on PTR_TO_BTF_ID, PTR_TO_RDONLY_BUF, and PTR_TO_RDWR_BUF
is generally allowed.

Fixes: b121b341e598 ("bpf: Add PTR_TO_BTF_ID_OR_NULL support")
Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it")
Fixes: afbf21dce668 ("bpf: Support readonly/readwrite buffers in verifier")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/verifier.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 4e28961cfa53e..b43c9de34a2c2 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -6037,16 +6037,16 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
 		fallthrough;
 	case PTR_TO_PACKET_END:
 	case PTR_TO_SOCKET:
-	case PTR_TO_SOCKET_OR_NULL:
 	case PTR_TO_SOCK_COMMON:
-	case PTR_TO_SOCK_COMMON_OR_NULL:
 	case PTR_TO_TCP_SOCK:
-	case PTR_TO_TCP_SOCK_OR_NULL:
 	case PTR_TO_XDP_SOCK:
+reject:
 		verbose(env, "R%d pointer arithmetic on %s prohibited\n",
 			dst, reg_type_str[ptr_reg->type]);
 		return -EACCES;
 	default:
+		if (reg_type_may_be_null(ptr_reg->type))
+			goto reject;
 		break;
 	}
 
-- 
GitLab


From 294c0dd80d8a2202fc5f883005730900e72ece58 Mon Sep 17 00:00:00 2001
From: "Mark-YW.Chen" <mark-yw.chen@mediatek.com>
Date: Thu, 14 Oct 2021 00:22:04 +0800
Subject: [PATCH 2749/4878] Bluetooth: btusb: fix memory leak in
 btusb_mtk_submit_wmt_recv_urb()

commit 60c6a63a3d3080a62f3e0e20084f58dbeff16748 upstream.

Driver should free `usb->setup_packet` to avoid the leak.

$ cat /sys/kernel/debug/kmemleak
unreferenced object 0xffffffa564a58080 (size 128):
    backtrace:
        [<000000007eb8dd70>] kmem_cache_alloc_trace+0x22c/0x384
        [<000000008a44191d>] btusb_mtk_hci_wmt_sync+0x1ec/0x994
    [btusb]
        [<00000000ca7189a3>] btusb_mtk_setup+0x6b8/0x13cc
    [btusb]
        [<00000000c6105069>] hci_dev_do_open+0x290/0x974
    [bluetooth]
        [<00000000a583f8b8>] hci_power_on+0xdc/0x3cc [bluetooth]
        [<000000005d80e687>] process_one_work+0x514/0xc80
        [<00000000f4d57637>] worker_thread+0x818/0xd0c
        [<00000000dc7bdb55>] kthread+0x2f8/0x3b8
        [<00000000f9999513>] ret_from_fork+0x10/0x30

Fixes: a1c49c434e150 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Signed-off-by: Mark-YW.Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/btusb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index e0859f4e28073..589ac48584a92 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2845,6 +2845,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 		skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
 		if (!skb) {
 			hdev->stat.err_rx++;
+			kfree(urb->setup_packet);
 			return;
 		}
 
@@ -2865,6 +2866,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 			data->evt_skb = skb_clone(skb, GFP_ATOMIC);
 			if (!data->evt_skb) {
 				kfree_skb(skb);
+				kfree(urb->setup_packet);
 				return;
 			}
 		}
@@ -2873,6 +2875,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 		if (err < 0) {
 			kfree_skb(data->evt_skb);
 			data->evt_skb = NULL;
+			kfree(urb->setup_packet);
 			return;
 		}
 
@@ -2883,6 +2886,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 			wake_up_bit(&data->flags,
 				    BTUSB_TX_WAIT_VND_EVT);
 		}
+		kfree(urb->setup_packet);
 		return;
 	} else if (urb->status == -ENOENT) {
 		/* Avoid suspend failed when usb_kill_urb */
@@ -2903,6 +2907,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
 	usb_anchor_urb(urb, &data->ctrl_anchor);
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err < 0) {
+		kfree(urb->setup_packet);
 		/* -EPERM: urb is being killed;
 		 * -ENODEV: device got disconnected
 		 */
-- 
GitLab


From 83493918380f6da219113967da7cb5bfb5d2e25e Mon Sep 17 00:00:00 2001
From: Zijun Hu <quic_zijuhu@quicinc.com>
Date: Thu, 9 Dec 2021 14:34:01 +0800
Subject: [PATCH 2750/4878] Bluetooth: btusb: Add two more Bluetooth parts for
 WCN6855

commit d2666be51d5f09662929888dd84d1f4d38c97127 upstream.

Add USB IDs (0x10ab, 0x9309) and (0x10ab, 0x9409) to
usb_device_id table for WCN6855.

* /sys/kernel/debug/usb/devices
T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 10 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=10ab ProdID=9309 Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
I:  If#= 1 Alt= 7 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  65 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  65 Ivl=1ms

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 11 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=10ab ProdID=9409 Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
I:  If#= 1 Alt= 7 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  65 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  65 Ivl=1ms

Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/btusb.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 589ac48584a92..4a4542691ad19 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -379,6 +379,12 @@ static const struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW |
 						     BTUSB_WIDEBAND_SPEECH |
 						     BTUSB_VALID_LE_STATES },
+	{ USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
+						     BTUSB_WIDEBAND_SPEECH |
+						     BTUSB_VALID_LE_STATES },
+	{ USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
+						     BTUSB_WIDEBAND_SPEECH |
+						     BTUSB_VALID_LE_STATES },
 
 	/* Other Intel Bluetooth devices */
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
-- 
GitLab


From c20021ce945f38e8597551687fdb115bfca7ae86 Mon Sep 17 00:00:00 2001
From: Aaron Ma <aaron.ma@canonical.com>
Date: Fri, 17 Dec 2021 17:51:50 +0800
Subject: [PATCH 2751/4878] Bluetooth: btusb: Add support for Foxconn MT7922A

commit 6932627425d6d3849aecd43c02158a5312895ad4 upstream.

Add 2 USB IDs for MT7922A chip.
These 2 devices got the same description.

T:  Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=480  MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0489 ProdID=e0d8 Rev= 1.00

T:  Bus=03 Lev=01 Prnt=01 Port=02 Cnt=02 Dev#=  3 Spd=480  MxCh= 0
D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0489 ProdID=e0d9 Rev= 1.00
S:  Manufacturer=MediaTek Inc.
S:  Product=Wireless_Device
S:  SerialNumber=000000000
C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA
A:  FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E:  Ad=8a(I) Atr=03(Int.) MxPS=  64 Ivl=125us
E:  Ad=0a(O) Atr=03(Int.) MxPS=  64 Ivl=125us
I:  If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none)
E:  Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us
E:  Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/btusb.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 4a4542691ad19..5a3c6b25308a3 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -406,6 +406,14 @@ static const struct usb_device_id blacklist_table[] = {
 			 BTUSB_WIDEBAND_SPEECH |
 			 BTUSB_VALID_LE_STATES },
 
+	/* MediaTek MT7922A Bluetooth devices */
+	{ USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
+						     BTUSB_WIDEBAND_SPEECH |
+						     BTUSB_VALID_LE_STATES },
+	{ USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
+						     BTUSB_WIDEBAND_SPEECH |
+						     BTUSB_VALID_LE_STATES },
+
 	/* Additional Realtek 8723AE Bluetooth devices */
 	{ USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
-- 
GitLab


From 869e1677a058db069911ed2c4e2f55772bc213fe Mon Sep 17 00:00:00 2001
From: Aaron Ma <aaron.ma@canonical.com>
Date: Fri, 7 Jan 2022 11:59:09 +0800
Subject: [PATCH 2752/4878] Bluetooth: btusb: Add support for Foxconn QCA
 0xe0d0

commit 1cd563ebd0dc062127a85e84f934f4c697bb43ef upstream.

Add an ID of Qualcomm Bluetooth SoC WCN6855.

T:  Bus=05 Lev=01 Prnt=01 Port=03 Cnt=02 Dev#=  4 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0489 ProdID=e0d0 Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:* If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
I:  If#= 1 Alt= 7 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  65 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  65 Ivl=1ms

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/btusb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 5a3c6b25308a3..538232b4c42ac 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -385,6 +385,9 @@ static const struct usb_device_id blacklist_table[] = {
 	{ USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 						     BTUSB_WIDEBAND_SPEECH |
 						     BTUSB_VALID_LE_STATES },
+	{ USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
+						     BTUSB_WIDEBAND_SPEECH |
+						     BTUSB_VALID_LE_STATES },
 
 	/* Other Intel Bluetooth devices */
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
-- 
GitLab


From b6dd0702369945f3b08abe991910f20b6ec281ff Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:39:44 +0200
Subject: [PATCH 2753/4878] Bluetooth: bfusb: fix division by zero in send path

commit b5e6fa7a12572c82f1e7f2f51fbb02a322291291 upstream.

Add the missing bulk-out endpoint sanity check to probe() to avoid
division by zero in bfusb_send_frame() in case a malicious device has
broken descriptors (or when doing descriptor fuzz testing).

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/bfusb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 5a321b4076aab..cab93935cc7f1 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -628,6 +628,9 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 	data->bulk_out_ep   = bulk_out_ep->desc.bEndpointAddress;
 	data->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
 
+	if (!data->bulk_pkt_size)
+		goto done;
+
 	rwlock_init(&data->lock);
 
 	data->reassembly = NULL;
-- 
GitLab


From 413108ce3b569d3ccfee88ff6d570f0af4801460 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Sun, 31 Oct 2021 23:41:36 +0000
Subject: [PATCH 2754/4878] ARM: dts: exynos: Fix BCM4330 Bluetooth reset
 polarity in I9100

commit 9cb6de45a006a9799ec399bce60d64b6d4fcc4af upstream.

The reset GPIO was marked active-high, which is against what's specified
in the documentation. Mark the reset GPIO as active-low. With this
change, Bluetooth can now be used on the i9100.

Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2")
Cc: stable@vger.kernel.org
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20211031234137.87070-1-paul@crapouillou.net
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/exynos4210-i9100.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts
index 7777bf51a6e64..ecc9d4dc707e4 100644
--- a/arch/arm/boot/dts/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/exynos4210-i9100.dts
@@ -765,7 +765,7 @@
 		compatible = "brcm,bcm4330-bt";
 
 		shutdown-gpios = <&gpl0 4 GPIO_ACTIVE_HIGH>;
-		reset-gpios = <&gpl1 0 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpl1 0 GPIO_ACTIVE_LOW>;
 		device-wakeup-gpios = <&gpx3 1 GPIO_ACTIVE_HIGH>;
 		host-wakeup-gpios = <&gpx2 6 GPIO_ACTIVE_HIGH>;
 	};
-- 
GitLab


From 15982330b61d7d6aa53580aaff18d8db2972c094 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Sat, 1 Jan 2022 14:52:14 -0500
Subject: [PATCH 2755/4878] USB: core: Fix bug in resuming hub's handling of
 wakeup requests

commit 0f663729bb4afc92a9986b66131ebd5b8a9254d1 upstream.

Bugzilla #213839 reports a 7-port hub that doesn't work properly when
devices are plugged into some of the ports; the kernel goes into an
unending disconnect/reinitialize loop as shown in the bug report.

This "7-port hub" comprises two four-port hubs with one plugged into
the other; the failures occur when a device is plugged into one of the
downstream hub's ports.  (These hubs have other problems too.  For
example, they bill themselves as USB-2.0 compliant but they only run
at full speed.)

It turns out that the failures are caused by bugs in both the kernel
and the hub.  The hub's bug is that it reports a different
bmAttributes value in its configuration descriptor following a remote
wakeup (0xe0 before, 0xc0 after -- the wakeup-support bit has
changed).

The kernel's bug is inside the hub driver's resume handler.  When
hub_activate() sees that one of the hub's downstream ports got a
wakeup request from a child device, it notes this fact by setting the
corresponding bit in the hub->change_bits variable.  But this variable
is meant for connection changes, not wakeup events; setting it causes
the driver to believe the downstream port has been disconnected and
then connected again (in addition to having received a wakeup
request).

Because of this, the hub driver then tries to check whether the device
currently plugged into the downstream port is the same as the device
that had been attached there before.  Normally this check succeeds and
wakeup handling continues with no harm done (which is why the bug
remained undetected until now).  But with these dodgy hubs, the check
fails because the config descriptor has changed.  This causes the hub
driver to reinitialize the child device, leading to the
disconnect/reinitialize loop described in the bug report.

The proper way to note reception of a downstream wakeup request is
to set a bit in the hub->event_bits variable instead of
hub->change_bits.  That way the hub driver will realize that something
has happened to the port but will not think the port and child device
have been disconnected.  This patch makes that change.

Cc: <stable@vger.kernel.org>
Tested-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/YdCw7nSfWYPKWQoD@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 3f406519da58d..af15dbe6bb141 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1224,7 +1224,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
 			 */
 			if (portchange || (hub_is_superspeed(hub->hdev) &&
 						port_resumed))
-				set_bit(port1, hub->change_bits);
+				set_bit(port1, hub->event_bits);
 
 		} else if (udev->persist_enabled) {
 #ifdef CONFIG_PM
-- 
GitLab


From a87cecf94375926e47c292c121fdbf3d3abd4782 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 31 Dec 2021 21:07:12 -0500
Subject: [PATCH 2756/4878] USB: Fix "slab-out-of-bounds Write" bug in
 usb_hcd_poll_rh_status

commit 1d7d4c07932e04355d6e6528d44a2f2c9e354346 upstream.

When the USB core code for getting root-hub status reports was
originally written, it was assumed that the hub driver would be its
only caller.  But this isn't true now; user programs can use usbfs to
communicate with root hubs and get status reports.  When they do this,
they may use a transfer_buffer that is smaller than the data returned
by the HCD, which will lead to a buffer overflow error when
usb_hcd_poll_rh_status() tries to store the status data.  This was
discovered by syzbot:

BUG: KASAN: slab-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]
BUG: KASAN: slab-out-of-bounds in usb_hcd_poll_rh_status+0x5f4/0x780 drivers/usb/core/hcd.c:776
Write of size 2 at addr ffff88801da403c0 by task syz-executor133/4062

This patch fixes the bug by reducing the amount of status data if it
won't fit in the transfer_buffer.  If some data gets discarded then
the URB's completion status is set to -EOVERFLOW rather than 0, to let
the user know what happened.

Reported-and-tested-by: syzbot+3ae6a2b06f131ab9849f@syzkaller.appspotmail.com
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/Yc+3UIQJ2STbxNua@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 99908d8d2dd36..b2710015493a5 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -754,6 +754,7 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd)
 {
 	struct urb	*urb;
 	int		length;
+	int		status;
 	unsigned long	flags;
 	char		buffer[6];	/* Any root hubs with > 31 ports? */
 
@@ -771,11 +772,17 @@ void usb_hcd_poll_rh_status(struct usb_hcd *hcd)
 		if (urb) {
 			clear_bit(HCD_FLAG_POLL_PENDING, &hcd->flags);
 			hcd->status_urb = NULL;
+			if (urb->transfer_buffer_length >= length) {
+				status = 0;
+			} else {
+				status = -EOVERFLOW;
+				length = urb->transfer_buffer_length;
+			}
 			urb->actual_length = length;
 			memcpy(urb->transfer_buffer, buffer, length);
 
 			usb_hcd_unlink_urb_from_ep(hcd, urb);
-			usb_hcd_giveback_urb(hcd, urb, 0);
+			usb_hcd_giveback_urb(hcd, urb, status);
 		} else {
 			length = 0;
 			set_bit(HCD_FLAG_POLL_PENDING, &hcd->flags);
-- 
GitLab


From 2e691f9894ccbc6186898ada8f801187178448de Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Wed, 8 Dec 2021 10:43:59 +0200
Subject: [PATCH 2757/4878] ath11k: Fix buffer overflow when scanning with
 extraie

commit a658c929ded7ea3aee324c8c2a9635a5e5a38e7f upstream.

If cfg80211 is providing extraie's for a scanning process then ath11k will
copy that over to the firmware. The extraie.len is a 32 bit value in struct
element_info and describes the amount of bytes for the vendor information
elements.

The WMI_TLV packet is having a special WMI_TAG_ARRAY_BYTE section. This
section can have a (payload) length up to 65535 bytes because the
WMI_TLV_LEN can store up to 16 bits. The code was missing such a check and
could have created a scan request which cannot be parsed correctly by the
firmware.

But the bigger problem was the allocation of the buffer. It has to align
the TLV sections by 4 bytes. But the code was using an u8 to store the
newly calculated length of this section (with alignment). And the new
calculated length was then used to allocate the skbuff. But the actual code
to copy in the data is using the extraie.len and not the calculated
"aligned" length.

The length of extraie with IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS enabled
was 264 bytes during tests with a QCA Milan card. But it only allocated 8
bytes (264 bytes % 256) for it. As consequence, the code to memcpy the
extraie into the skb was then just overwriting data after skb->end. Things
like shinfo were therefore corrupted. This could usually be seen by a crash
in skb_zcopy_clear which tried to call a ubuf_info callback (using a bogus
address).

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-02892.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Cc: stable@vger.kernel.org
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211207142913.1734635-1-sven@narfation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 74ebe8e7d1d81..e84127165d858 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -2036,7 +2036,7 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 	void *ptr;
 	int i, ret, len;
 	u32 *tmp_ptr;
-	u8 extraie_len_with_pad = 0;
+	u16 extraie_len_with_pad = 0;
 	struct hint_short_ssid *s_ssid = NULL;
 	struct hint_bssid *hint_bssid = NULL;
 
@@ -2055,7 +2055,7 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 		len += sizeof(*bssid) * params->num_bssid;
 
 	len += TLV_HDR_SIZE;
-	if (params->extraie.len)
+	if (params->extraie.len && params->extraie.len <= 0xFFFF)
 		extraie_len_with_pad =
 			roundup(params->extraie.len, sizeof(u32));
 	len += extraie_len_with_pad;
@@ -2162,7 +2162,7 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 		      FIELD_PREP(WMI_TLV_LEN, len);
 	ptr += TLV_HDR_SIZE;
 
-	if (params->extraie.len)
+	if (extraie_len_with_pad)
 		memcpy(ptr, params->extraie.ptr,
 		       params->extraie.len);
 
-- 
GitLab


From ddfa53825f3d624f1cd6d3e176a37169c7700a3b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 24 Nov 2021 11:48:50 +0200
Subject: [PATCH 2758/4878] mmc: sdhci-pci: Add PCI ID for Intel ADL

commit e53e97f805cb1abeea000a61549d42f92cb10804 upstream.

Add PCI ID for Intel ADL eMMC host controller.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211124094850.1783220-1-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-pci-core.c | 1 +
 drivers/mmc/host/sdhci-pci.h      | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index bf04a08eeba13..a78b060ce8471 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -1932,6 +1932,7 @@ static const struct pci_device_id pci_ids[] = {
 	SDHCI_PCI_DEVICE(INTEL, JSL_SD,    intel_byt_sd),
 	SDHCI_PCI_DEVICE(INTEL, LKF_EMMC,  intel_glk_emmc),
 	SDHCI_PCI_DEVICE(INTEL, LKF_SD,    intel_byt_sd),
+	SDHCI_PCI_DEVICE(INTEL, ADL_EMMC,  intel_glk_emmc),
 	SDHCI_PCI_DEVICE(O2, 8120,     o2),
 	SDHCI_PCI_DEVICE(O2, 8220,     o2),
 	SDHCI_PCI_DEVICE(O2, 8221,     o2),
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index 8f90c4163bb5c..dcd99d5057ee1 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -59,6 +59,7 @@
 #define PCI_DEVICE_ID_INTEL_JSL_SD	0x4df8
 #define PCI_DEVICE_ID_INTEL_LKF_EMMC	0x98c4
 #define PCI_DEVICE_ID_INTEL_LKF_SD	0x98f8
+#define PCI_DEVICE_ID_INTEL_ADL_EMMC	0x54c4
 
 #define PCI_DEVICE_ID_SYSKONNECT_8000	0x8000
 #define PCI_DEVICE_ID_VIA_95D0		0x95d0
-- 
GitLab


From 5f76445a31b79be85b337cce5f35affb77cc18fc Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Thu, 6 Jan 2022 01:46:06 +0100
Subject: [PATCH 2759/4878] veth: Do not record rx queue hint in veth_xmit

commit 710ad98c363a66a0cd8526465426c5c5f8377ee0 upstream.

Laurent reported that they have seen a significant amount of TCP retransmissions
at high throughput from applications residing in network namespaces talking to
the outside world via veths. The drops were seen on the qdisc layer (fq_codel,
as per systemd default) of the phys device such as ena or virtio_net due to all
traffic hitting a _single_ TX queue _despite_ multi-queue device. (Note that the
setup was _not_ using XDP on veths as the issue is generic.)

More specifically, after edbea9220251 ("veth: Store queue_mapping independently
of XDP prog presence") which made it all the way back to v4.19.184+,
skb_record_rx_queue() would set skb->queue_mapping to 1 (given 1 RX and 1 TX
queue by default for veths) instead of leaving at 0.

This is eventually retained and callbacks like ena_select_queue() will also pick
single queue via netdev_core_pick_tx()'s ndo_select_queue() once all the traffic
is forwarded to that device via upper stack or other means. Similarly, for others
not implementing ndo_select_queue() if XPS is disabled, netdev_pick_tx() might
call into the skb_tx_hash() and check for prior skb_rx_queue_recorded() as well.

In general, it is a _bad_ idea for virtual devices like veth to mess around with
queue selection [by default]. Given dev->real_num_tx_queues is by default 1,
the skb->queue_mapping was left untouched, and so prior to edbea9220251 the
netdev_core_pick_tx() could do its job upon __dev_queue_xmit() on the phys device.

Unbreak this and restore prior behavior by removing the skb_record_rx_queue()
from veth_xmit() altogether.

If the veth peer has an XDP program attached, then it would return the first RX
queue index in xdp_md->rx_queue_index (unless configured in non-default manner).
However, this is still better than breaking the generic case.

Fixes: edbea9220251 ("veth: Store queue_mapping independently of XDP prog presence")
Fixes: 638264dc9022 ("veth: Support per queue XDP ring")
Reported-by: Laurent Bernaille <laurent.bernaille@datadoghq.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Cc: Toshiaki Makita <toshiaki.makita1@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Toshiaki Makita <toshiaki.makita1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/veth.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index be18b243642f0..aef66f8eecee1 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -301,7 +301,6 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (rxq < rcv->real_num_rx_queues) {
 		rq = &rcv_priv->rq[rxq];
 		rcv_xdp = rcu_access_pointer(rq->xdp_prog);
-		skb_record_rx_queue(skb, rxq);
 	}
 
 	skb_tx_timestamp(skb);
-- 
GitLab


From f68e600017354e75e696b2c6883c64bfa0072c67 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 1 Nov 2021 21:00:08 +0200
Subject: [PATCH 2760/4878] mfd: intel-lpss: Fix too early PM enablement in the
 ACPI ->probe()

commit c9e143084d1a602f829115612e1ec79df3727c8b upstream.

The runtime PM callback may be called as soon as the runtime PM facility
is enabled and activated. It means that ->suspend() may be called before
we finish probing the device in the ACPI case. Hence, NULL pointer
dereference:

  intel-lpss INT34BA:00: IRQ index 0 not found
  BUG: kernel NULL pointer dereference, address: 0000000000000030
  ...
  Workqueue: pm pm_runtime_work
  RIP: 0010:intel_lpss_suspend+0xb/0x40 [intel_lpss]

To fix this, first try to register the device and only after that enable
runtime PM facility.

Fixes: 4b45efe85263 ("mfd: Add support for Intel Sunrisepoint LPSS devices")
Reported-by: Orlando Chamberlain <redecorating@protonmail.com>
Reported-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211101190008.86473-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mfd/intel-lpss-acpi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/intel-lpss-acpi.c b/drivers/mfd/intel-lpss-acpi.c
index c8fe334b5fe8b..045cbf0cbe53a 100644
--- a/drivers/mfd/intel-lpss-acpi.c
+++ b/drivers/mfd/intel-lpss-acpi.c
@@ -102,6 +102,7 @@ static int intel_lpss_acpi_probe(struct platform_device *pdev)
 {
 	struct intel_lpss_platform_info *info;
 	const struct acpi_device_id *id;
+	int ret;
 
 	id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev);
 	if (!id)
@@ -115,10 +116,14 @@ static int intel_lpss_acpi_probe(struct platform_device *pdev)
 	info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	info->irq = platform_get_irq(pdev, 0);
 
+	ret = intel_lpss_probe(&pdev->dev, info);
+	if (ret)
+		return ret;
+
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
-	return intel_lpss_probe(&pdev->dev, info);
+	return 0;
 }
 
 static int intel_lpss_acpi_remove(struct platform_device *pdev)
-- 
GitLab


From bd61ae808b1516ad577d37a256838e1665c5ffb4 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 10 Dec 2021 10:03:09 +0100
Subject: [PATCH 2761/4878] can: gs_usb: fix use of uninitialized variable,
 detach device on reception of invalid USB data

commit 4a8737ff068724f509d583fef404d349adba80d6 upstream.

The received data contains the channel the received data is associated
with. If the channel number is bigger than the actual number of
channels assume broken or malicious USB device and shut it down.

This fixes the error found by clang:

| drivers/net/can/usb/gs_usb.c:386:6: error: variable 'dev' is used
|                                     uninitialized whenever 'if' condition is true
|         if (hf->channel >= GS_MAX_INTF)
|             ^~~~~~~~~~~~~~~~~~~~~~~~~~
| drivers/net/can/usb/gs_usb.c:474:10: note: uninitialized use occurs here
|                           hf, dev->gs_hf_size, gs_usb_receive_bulk_callback,
|                               ^~~

Link: https://lore.kernel.org/all/20211210091158.408326-1-mkl@pengutronix.de
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/usb/gs_usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 018ca3b057a3b..9ee55eecadb17 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -320,7 +320,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
 
 	/* device reports out of range channel id */
 	if (hf->channel >= GS_MAX_INTF)
-		goto resubmit_urb;
+		goto device_detach;
 
 	dev = usbcan->canch[hf->channel];
 
@@ -405,6 +405,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
 
 	/* USB failure take down all interfaces */
 	if (rc == -ENODEV) {
+ device_detach:
 		for (rc = 0; rc < GS_MAX_INTF; rc++) {
 			if (usbcan->canch[rc])
 				netif_device_detach(usbcan->canch[rc]->netdev);
-- 
GitLab


From 45221a57b609fecceff5f66a016443e88ca9eb00 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Wed, 5 Jan 2022 14:01:12 +0100
Subject: [PATCH 2762/4878] can: isotp: convert struct tpcon::{idx,len} to
 unsigned int

commit 5f33a09e769a9da0482f20a6770a342842443776 upstream.

In isotp_rcv_ff() 32 bit of data received over the network is assigned
to struct tpcon::len. Later in that function the length is checked for
the maximal supported length against MAX_MSG_LENGTH.

As struct tpcon::len is an "int" this check does not work, if the
provided length overflows the "int".

Later on struct tpcon::idx is compared against struct tpcon::len.

To fix this problem this patch converts both struct tpcon::{idx,len}
to unsigned int.

Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Link: https://lore.kernel.org/all/20220105132429.1170627-1-mkl@pengutronix.de
Cc: stable@vger.kernel.org
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Reported-by: syzbot+4c63f36709a642f801c5@syzkaller.appspotmail.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 8ee580538d876..53ce5b6448a5d 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -119,8 +119,8 @@ enum {
 };
 
 struct tpcon {
-	int idx;
-	int len;
+	unsigned int idx;
+	unsigned int len;
 	u32 state;
 	u8 bs;
 	u8 sn;
-- 
GitLab


From 43c494294f30a3899c07cf27f6dc76e0b8f8b133 Mon Sep 17 00:00:00 2001
From: Brian Silverman <brian.silverman@bluerivertech.com>
Date: Wed, 5 Jan 2022 16:29:50 -0800
Subject: [PATCH 2763/4878] can: gs_usb: gs_can_start_xmit(): zero-initialize
 hf->{flags,reserved}

commit 89d58aebe14a365c25ba6645414afdbf4e41cea4 upstream.

No information is deliberately sent in hf->flags in host -> device
communications, but the open-source candleLight firmware echoes it
back, which can result in the GS_CAN_FLAG_OVERFLOW flag being set and
generating spurious ERRORFRAMEs.

While there also initialize the reserved member with 0.

Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/all/20220106002952.25883-1-brian.silverman@bluerivertech.com
Link: https://github.com/candle-usb/candleLight_fw/issues/87
Cc: stable@vger.kernel.org
Signed-off-by: Brian Silverman <brian.silverman@bluerivertech.com>
[mkl: initialize the reserved member, too]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/usb/gs_usb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 9ee55eecadb17..3f759fae81fe2 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -507,6 +507,8 @@ static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb,
 
 	hf->echo_id = idx;
 	hf->channel = dev->channel;
+	hf->flags = 0;
+	hf->reserved = 0;
 
 	cf = (struct can_frame *)skb->data;
 
-- 
GitLab


From 3de9478230c3e3ae0ae599847ca2ac6b7781e780 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 20 Dec 2021 16:41:56 -0600
Subject: [PATCH 2764/4878] random: fix data race on crng_node_pool

commit 5d73d1e320c3fd94ea15ba5f79301da9a8bcc7de upstream.

extract_crng() and crng_backtrack_protect() load crng_node_pool with a
plain load, which causes undefined behavior if do_numa_crng_init()
modifies it concurrently.

Fix this by using READ_ONCE().  Note: as per the previous discussion
https://lore.kernel.org/lkml/20211219025139.31085-1-ebiggers@kernel.org/T/#u,
READ_ONCE() is believed to be sufficient here, and it was requested that
it be used here instead of smp_load_acquire().

Also change do_numa_crng_init() to set crng_node_pool using
cmpxchg_release() instead of mb() + cmpxchg(), as the former is
sufficient here but is more lightweight.

Fixes: 1e7f583af67b ("random: make /dev/urandom scalable for silly userspace programs")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/random.c | 42 ++++++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 340ad21491e28..08947733b555b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -853,8 +853,8 @@ static void do_numa_crng_init(struct work_struct *work)
 		crng_initialize_secondary(crng);
 		pool[i] = crng;
 	}
-	mb();
-	if (cmpxchg(&crng_node_pool, NULL, pool)) {
+	/* pairs with READ_ONCE() in select_crng() */
+	if (cmpxchg_release(&crng_node_pool, NULL, pool) != NULL) {
 		for_each_node(i)
 			kfree(pool[i]);
 		kfree(pool);
@@ -867,8 +867,26 @@ static void numa_crng_init(void)
 {
 	schedule_work(&numa_crng_init_work);
 }
+
+static struct crng_state *select_crng(void)
+{
+	struct crng_state **pool;
+	int nid = numa_node_id();
+
+	/* pairs with cmpxchg_release() in do_numa_crng_init() */
+	pool = READ_ONCE(crng_node_pool);
+	if (pool && pool[nid])
+		return pool[nid];
+
+	return &primary_crng;
+}
 #else
 static void numa_crng_init(void) {}
+
+static struct crng_state *select_crng(void)
+{
+	return &primary_crng;
+}
 #endif
 
 /*
@@ -1015,15 +1033,7 @@ static void _extract_crng(struct crng_state *crng,
 
 static void extract_crng(__u8 out[CHACHA_BLOCK_SIZE])
 {
-	struct crng_state *crng = NULL;
-
-#ifdef CONFIG_NUMA
-	if (crng_node_pool)
-		crng = crng_node_pool[numa_node_id()];
-	if (crng == NULL)
-#endif
-		crng = &primary_crng;
-	_extract_crng(crng, out);
+	_extract_crng(select_crng(), out);
 }
 
 /*
@@ -1052,15 +1062,7 @@ static void _crng_backtrack_protect(struct crng_state *crng,
 
 static void crng_backtrack_protect(__u8 tmp[CHACHA_BLOCK_SIZE], int used)
 {
-	struct crng_state *crng = NULL;
-
-#ifdef CONFIG_NUMA
-	if (crng_node_pool)
-		crng = crng_node_pool[numa_node_id()];
-	if (crng == NULL)
-#endif
-		crng = &primary_crng;
-	_crng_backtrack_protect(crng, tmp, used);
+	_crng_backtrack_protect(select_crng(), tmp, used);
 }
 
 static ssize_t extract_crng_user(void __user *buf, size_t nbytes)
-- 
GitLab


From 61cca7d191c7c143bc8f3e779859f8b3d5100c89 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Mon, 20 Dec 2021 16:41:57 -0600
Subject: [PATCH 2765/4878] random: fix data race on crng init time

commit 009ba8568be497c640cab7571f7bfd18345d7b24 upstream.

_extract_crng() does plain loads of crng->init_time and
crng_global_init_time, which causes undefined behavior if
crng_reseed() and RNDRESEEDCRNG modify these corrently.

Use READ_ONCE() and WRITE_ONCE() to make the behavior defined.

Don't fix the race on crng->init_time by protecting it with crng->lock,
since it's not a problem for duplicate reseedings to occur.  I.e., the
lockless access with READ_ONCE() is fine.

Fixes: d848e5f8e1eb ("random: add new ioctl RNDRESEEDCRNG")
Fixes: e192be9d9a30 ("random: replace non-blocking pool with a Chacha20-based CRNG")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/random.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 08947733b555b..904ba49a91589 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -990,7 +990,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
 		crng->state[i+4] ^= buf.key[i] ^ rv;
 	}
 	memzero_explicit(&buf, sizeof(buf));
-	crng->init_time = jiffies;
+	WRITE_ONCE(crng->init_time, jiffies);
 	spin_unlock_irqrestore(&crng->lock, flags);
 	if (crng == &primary_crng && crng_init < 2) {
 		invalidate_batched_entropy();
@@ -1016,12 +1016,15 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
 static void _extract_crng(struct crng_state *crng,
 			  __u8 out[CHACHA_BLOCK_SIZE])
 {
-	unsigned long v, flags;
+	unsigned long v, flags, init_time;
 
-	if (crng_ready() &&
-	    (time_after(crng_global_init_time, crng->init_time) ||
-	     time_after(jiffies, crng->init_time + CRNG_RESEED_INTERVAL)))
-		crng_reseed(crng, crng == &primary_crng ? &input_pool : NULL);
+	if (crng_ready()) {
+		init_time = READ_ONCE(crng->init_time);
+		if (time_after(READ_ONCE(crng_global_init_time), init_time) ||
+		    time_after(jiffies, init_time + CRNG_RESEED_INTERVAL))
+			crng_reseed(crng, crng == &primary_crng ?
+				    &input_pool : NULL);
+	}
 	spin_lock_irqsave(&crng->lock, flags);
 	if (arch_get_random_long(&v))
 		crng->state[14] ^= v;
@@ -1975,7 +1978,7 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 		if (crng_init < 2)
 			return -ENODATA;
 		crng_reseed(&primary_crng, &input_pool);
-		crng_global_init_time = jiffies - 1;
+		WRITE_ONCE(crng_global_init_time, jiffies - 1);
 		return 0;
 	default:
 		return -EINVAL;
-- 
GitLab


From 9b3c761e78d53a510e56b69e625e515d9d41d0ba Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Wed, 29 Dec 2021 22:10:03 +0100
Subject: [PATCH 2766/4878] random: fix crash on multiple early calls to
 add_bootloader_randomness()

commit f7e67b8e803185d0aabe7f29d25a35c8be724a78 upstream.

Currently, if CONFIG_RANDOM_TRUST_BOOTLOADER is enabled, multiple calls
to add_bootloader_randomness() are broken and can cause a NULL pointer
dereference, as noted by Ivan T. Ivanov. This is not only a hypothetical
problem, as qemu on arm64 may provide bootloader entropy via EFI and via
devicetree.

On the first call to add_hwgenerator_randomness(), crng_fast_load() is
executed, and if the seed is long enough, crng_init will be set to 1.
On subsequent calls to add_bootloader_randomness() and then to
add_hwgenerator_randomness(), crng_fast_load() will be skipped. Instead,
wait_event_interruptible() and then credit_entropy_bits() will be called.
If the entropy count for that second seed is large enough, that proceeds
to crng_reseed().

However, both wait_event_interruptible() and crng_reseed() depends
(at least in numa_crng_init()) on workqueues. Therefore, test whether
system_wq is already initialized, which is a sufficient indicator that
workqueue_init_early() has progressed far enough.

If we wind up hitting the !system_wq case, we later want to do what
would have been done there when wqs are up, so set a flag, and do that
work later from the rand_initialize() call.

Reported-by: Ivan T. Ivanov <iivanov@suse.de>
Fixes: 18b915ac6b0a ("efi/random: Treat EFI_RNG_PROTOCOL output as bootloader randomness")
Cc: stable@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
[Jason: added crng_need_done state and related logic.]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/random.c | 56 +++++++++++++++++++++++++++----------------
 1 file changed, 36 insertions(+), 20 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 904ba49a91589..8c94380e7a463 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -461,6 +461,7 @@ static struct crng_state primary_crng = {
  * its value (from 0->1->2).
  */
 static int crng_init = 0;
+static bool crng_need_final_init = false;
 #define crng_ready() (likely(crng_init > 1))
 static int crng_init_cnt = 0;
 static unsigned long crng_global_init_time = 0;
@@ -838,6 +839,36 @@ static void __init crng_initialize_primary(struct crng_state *crng)
 	crng->init_time = jiffies - CRNG_RESEED_INTERVAL - 1;
 }
 
+static void crng_finalize_init(struct crng_state *crng)
+{
+	if (crng != &primary_crng || crng_init >= 2)
+		return;
+	if (!system_wq) {
+		/* We can't call numa_crng_init until we have workqueues,
+		 * so mark this for processing later. */
+		crng_need_final_init = true;
+		return;
+	}
+
+	invalidate_batched_entropy();
+	numa_crng_init();
+	crng_init = 2;
+	process_random_ready_list();
+	wake_up_interruptible(&crng_init_wait);
+	kill_fasync(&fasync, SIGIO, POLL_IN);
+	pr_notice("crng init done\n");
+	if (unseeded_warning.missed) {
+		pr_notice("%d get_random_xx warning(s) missed due to ratelimiting\n",
+			  unseeded_warning.missed);
+		unseeded_warning.missed = 0;
+	}
+	if (urandom_warning.missed) {
+		pr_notice("%d urandom warning(s) missed due to ratelimiting\n",
+			  urandom_warning.missed);
+		urandom_warning.missed = 0;
+	}
+}
+
 #ifdef CONFIG_NUMA
 static void do_numa_crng_init(struct work_struct *work)
 {
@@ -992,25 +1023,7 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
 	memzero_explicit(&buf, sizeof(buf));
 	WRITE_ONCE(crng->init_time, jiffies);
 	spin_unlock_irqrestore(&crng->lock, flags);
-	if (crng == &primary_crng && crng_init < 2) {
-		invalidate_batched_entropy();
-		numa_crng_init();
-		crng_init = 2;
-		process_random_ready_list();
-		wake_up_interruptible(&crng_init_wait);
-		kill_fasync(&fasync, SIGIO, POLL_IN);
-		pr_notice("crng init done\n");
-		if (unseeded_warning.missed) {
-			pr_notice("%d get_random_xx warning(s) missed due to ratelimiting\n",
-				  unseeded_warning.missed);
-			unseeded_warning.missed = 0;
-		}
-		if (urandom_warning.missed) {
-			pr_notice("%d urandom warning(s) missed due to ratelimiting\n",
-				  urandom_warning.missed);
-			urandom_warning.missed = 0;
-		}
-	}
+	crng_finalize_init(crng);
 }
 
 static void _extract_crng(struct crng_state *crng,
@@ -1804,6 +1817,8 @@ static void __init init_std_data(struct entropy_store *r)
 int __init rand_initialize(void)
 {
 	init_std_data(&input_pool);
+	if (crng_need_final_init)
+		crng_finalize_init(&primary_crng);
 	crng_initialize_primary(&primary_crng);
 	crng_global_init_time = jiffies;
 	if (ratelimit_disable) {
@@ -2312,7 +2327,8 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
 	 * We'll be woken up again once below random_write_wakeup_thresh,
 	 * or when the calling thread is about to terminate.
 	 */
-	wait_event_interruptible(random_write_wait, kthread_should_stop() ||
+	wait_event_interruptible(random_write_wait,
+			!system_wq || kthread_should_stop() ||
 			ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits);
 	mix_pool_bytes(poolp, buffer, count);
 	credit_entropy_bits(poolp, entropy);
-- 
GitLab


From 3609fed7ac8bdd6c9dfbb0a41bf03879944f738f Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ribalda@chromium.org>
Date: Tue, 7 Dec 2021 01:38:37 +0100
Subject: [PATCH 2767/4878] media: Revert "media: uvcvideo: Set unique vdev
 name based in type"

commit f66dcb32af19faf49cc4a9222c3152b10c6ec84a upstream.

A lot of userspace depends on a descriptive name for vdev. Without this
patch, users have a hard time figuring out which camera shall they use
for their video conferencing.

This reverts commit e3f60e7e1a2b451f538f9926763432249bcf39c4.

Link: https://lore.kernel.org/linux-media/20211207003840.1212374-2-ribalda@chromium.org
Cc: <stable@vger.kernel.org>
Fixes: e3f60e7e1a2b ("media: uvcvideo: Set unique vdev name based in type")
Reported-by: Nicolas Dufresne <nicolas@ndufresne.ca>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/uvc/uvc_driver.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 447b6a198926e..282f3d2388cc2 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -2065,7 +2065,6 @@ int uvc_register_video_device(struct uvc_device *dev,
 			      const struct v4l2_file_operations *fops,
 			      const struct v4l2_ioctl_ops *ioctl_ops)
 {
-	const char *name;
 	int ret;
 
 	/* Initialize the video buffers queue. */
@@ -2094,20 +2093,16 @@ int uvc_register_video_device(struct uvc_device *dev,
 	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 	default:
 		vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
-		name = "Video Capture";
 		break;
 	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 		vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
-		name = "Video Output";
 		break;
 	case V4L2_BUF_TYPE_META_CAPTURE:
 		vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
-		name = "Metadata";
 		break;
 	}
 
-	snprintf(vdev->name, sizeof(vdev->name), "%s %u", name,
-		 stream->header.bTerminalLink);
+	strscpy(vdev->name, dev->name, sizeof(vdev->name));
 
 	/*
 	 * Set the driver data before calling video_register_device, otherwise
-- 
GitLab


From 2d4fda471dc33a25024f65887d2e8289740a02e9 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Thu, 14 Oct 2021 14:57:03 -0700
Subject: [PATCH 2768/4878] staging: wlan-ng: Avoid bitwise vs logical OR
 warning in hfa384x_usb_throttlefn()

commit 502408a61f4b7eb4713f44bd77f4a48e6cb1b59a upstream.

A new warning in clang points out a place in this file where a bitwise
OR is being used with boolean expressions:

In file included from drivers/staging/wlan-ng/prism2usb.c:2:
drivers/staging/wlan-ng/hfa384x_usb.c:3787:7: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
            ((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
            ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/wlan-ng/hfa384x_usb.c:3787:7: note: cast one or both operands to int to silence this warning
1 warning generated.

The comment explains that short circuiting here is undesirable, as the
calls to test_and_{clear,set}_bit() need to happen for both sides of the
expression.

Clang's suggestion would work to silence the warning but the readability
of the expression would suffer even more. To clean up the warning and
make the block more readable, use a variable for each side of the
bitwise expression.

Link: https://github.com/ClangBuiltLinux/linux/issues/1478
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211014215703.3705371-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlan-ng/hfa384x_usb.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index f2a0e16b0318c..fac3f34d4a1f5 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -3779,18 +3779,18 @@ static void hfa384x_usb_throttlefn(struct timer_list *t)
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
 
-	/*
-	 * We need to check BOTH the RX and the TX throttle controls,
-	 * so we use the bitwise OR instead of the logical OR.
-	 */
 	pr_debug("flags=0x%lx\n", hw->usb_flags);
-	if (!hw->wlandev->hwremoved &&
-	    ((test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
-	      !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags)) |
-	     (test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) &&
-	      !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags))
-	    )) {
-		schedule_work(&hw->usb_work);
+	if (!hw->wlandev->hwremoved) {
+		bool rx_throttle = test_and_clear_bit(THROTTLE_RX, &hw->usb_flags) &&
+				   !test_and_set_bit(WORK_RX_RESUME, &hw->usb_flags);
+		bool tx_throttle = test_and_clear_bit(THROTTLE_TX, &hw->usb_flags) &&
+				   !test_and_set_bit(WORK_TX_RESUME, &hw->usb_flags);
+		/*
+		 * We need to check BOTH the RX and the TX throttle controls,
+		 * so we use the bitwise OR instead of the logical OR.
+		 */
+		if (rx_throttle | tx_throttle)
+			schedule_work(&hw->usb_work);
 	}
 
 	spin_unlock_irqrestore(&hw->ctlxq.lock, flags);
-- 
GitLab


From 66d21c005d9beaf874e466d63538ed37aa153c5e Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Thu, 14 Oct 2021 14:19:16 -0700
Subject: [PATCH 2769/4878] drm/i915: Avoid bitwise vs logical OR warning in
 snb_wm_latency_quirk()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 2e70570656adfe1c5d9a29940faa348d5f132199 upstream.

A new warning in clang points out a place in this file where a bitwise
OR is being used with boolean types:

drivers/gpu/drm/i915/intel_pm.c:3066:12: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical]
        changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) |
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This construct is intentional, as it allows every one of the calls to
ilk_increase_wm_latency() to occur (instead of short circuiting with
logical OR) while still caring about the result of each call.

To make this clearer to the compiler, use the '|=' operator to assign
the result of each ilk_increase_wm_latency() call to changed, which
keeps the meaning of the code the same but makes it obvious that every
one of these calls is expected to happen.

Link: https://github.com/ClangBuiltLinux/linux/issues/1473
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Dávid Bolvanský <david.bolvansky@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014211916.3550122-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/intel_pm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 1f23cb6ece588..e51ca7ca0a2a7 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3044,9 +3044,9 @@ static void snb_wm_latency_quirk(struct drm_i915_private *dev_priv)
 	 * The BIOS provided WM memory latency values are often
 	 * inadequate for high resolution displays. Adjust them.
 	 */
-	changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12) |
-		ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, 12) |
-		ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, 12);
+	changed = ilk_increase_wm_latency(dev_priv, dev_priv->wm.pri_latency, 12);
+	changed |= ilk_increase_wm_latency(dev_priv, dev_priv->wm.spr_latency, 12);
+	changed |= ilk_increase_wm_latency(dev_priv, dev_priv->wm.cur_latency, 12);
 
 	if (!changed)
 		return;
-- 
GitLab


From c0091233f3d8f4c49a76546a387a783324a6b0ec Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 9 Dec 2021 12:51:42 -0700
Subject: [PATCH 2770/4878] staging: greybus: fix stack size warning with UBSAN

commit 144779edf598e0896302c35a0926ef0b68f17c4b upstream.

clang warns about excessive stack usage in this driver when
UBSAN is enabled:

drivers/staging/greybus/audio_topology.c:977:12: error: stack frame size of 1836 bytes in function 'gbaudio_tplg_create_widget' [-Werror,-Wframe-larger-than=]

Rework this code to no longer use compound literals for
initializing the structure in each case, but instead keep
the common bits in a preallocated constant array and copy
them as needed.

Link: https://github.com/ClangBuiltLinux/linux/issues/1535
Link: https://lore.kernel.org/r/20210103223541.2790855-1-arnd@kernel.org/
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[nathan: Address review comments from v1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211209195141.1165233-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/greybus/audio_topology.c | 92 ++++++++++++------------
 1 file changed, 45 insertions(+), 47 deletions(-)

diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
index 662e3e8b4b634..2bb8e7b60e8d5 100644
--- a/drivers/staging/greybus/audio_topology.c
+++ b/drivers/staging/greybus/audio_topology.c
@@ -974,6 +974,44 @@ static int gbaudio_widget_event(struct snd_soc_dapm_widget *w,
 	return ret;
 }
 
+static const struct snd_soc_dapm_widget gbaudio_widgets[] = {
+	[snd_soc_dapm_spk]	= SND_SOC_DAPM_SPK(NULL, gbcodec_event_spk),
+	[snd_soc_dapm_hp]	= SND_SOC_DAPM_HP(NULL, gbcodec_event_hp),
+	[snd_soc_dapm_mic]	= SND_SOC_DAPM_MIC(NULL, gbcodec_event_int_mic),
+	[snd_soc_dapm_output]	= SND_SOC_DAPM_OUTPUT(NULL),
+	[snd_soc_dapm_input]	= SND_SOC_DAPM_INPUT(NULL),
+	[snd_soc_dapm_switch]	= SND_SOC_DAPM_SWITCH_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_pga]	= SND_SOC_DAPM_PGA_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_mixer]	= SND_SOC_DAPM_MIXER_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_mux]	= SND_SOC_DAPM_MUX_E(NULL, SND_SOC_NOPM,
+					0, 0, NULL,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_aif_in]	= SND_SOC_DAPM_AIF_IN_E(NULL, NULL, 0,
+					SND_SOC_NOPM, 0, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+	[snd_soc_dapm_aif_out]	= SND_SOC_DAPM_AIF_OUT_E(NULL, NULL, 0,
+					SND_SOC_NOPM, 0, 0,
+					gbaudio_widget_event,
+					SND_SOC_DAPM_PRE_PMU |
+					SND_SOC_DAPM_POST_PMD),
+};
+
 static int gbaudio_tplg_create_widget(struct gbaudio_module_info *module,
 				      struct snd_soc_dapm_widget *dw,
 				      struct gb_audio_widget *w, int *w_size)
@@ -1052,77 +1090,37 @@ static int gbaudio_tplg_create_widget(struct gbaudio_module_info *module,
 
 	switch (w->type) {
 	case snd_soc_dapm_spk:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_SPK(w->name, gbcodec_event_spk);
+		*dw = gbaudio_widgets[w->type];
 		module->op_devices |= GBAUDIO_DEVICE_OUT_SPEAKER;
 		break;
 	case snd_soc_dapm_hp:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_HP(w->name, gbcodec_event_hp);
+		*dw = gbaudio_widgets[w->type];
 		module->op_devices |= (GBAUDIO_DEVICE_OUT_WIRED_HEADSET
 					| GBAUDIO_DEVICE_OUT_WIRED_HEADPHONE);
 		module->ip_devices |= GBAUDIO_DEVICE_IN_WIRED_HEADSET;
 		break;
 	case snd_soc_dapm_mic:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_MIC(w->name, gbcodec_event_int_mic);
+		*dw = gbaudio_widgets[w->type];
 		module->ip_devices |= GBAUDIO_DEVICE_IN_BUILTIN_MIC;
 		break;
 	case snd_soc_dapm_output:
-		*dw = (struct snd_soc_dapm_widget)SND_SOC_DAPM_OUTPUT(w->name);
-		break;
 	case snd_soc_dapm_input:
-		*dw = (struct snd_soc_dapm_widget)SND_SOC_DAPM_INPUT(w->name);
-		break;
 	case snd_soc_dapm_switch:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_SWITCH_E(w->name, SND_SOC_NOPM, 0, 0,
-					      widget_kctls,
-					      gbaudio_widget_event,
-					      SND_SOC_DAPM_PRE_PMU |
-					      SND_SOC_DAPM_POST_PMD);
-		break;
 	case snd_soc_dapm_pga:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_PGA_E(w->name, SND_SOC_NOPM, 0, 0, NULL, 0,
-					   gbaudio_widget_event,
-					   SND_SOC_DAPM_PRE_PMU |
-					   SND_SOC_DAPM_POST_PMD);
-		break;
 	case snd_soc_dapm_mixer:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_MIXER_E(w->name, SND_SOC_NOPM, 0, 0, NULL,
-					     0, gbaudio_widget_event,
-					     SND_SOC_DAPM_PRE_PMU |
-					     SND_SOC_DAPM_POST_PMD);
-		break;
 	case snd_soc_dapm_mux:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_MUX_E(w->name, SND_SOC_NOPM, 0, 0,
-					   widget_kctls, gbaudio_widget_event,
-					   SND_SOC_DAPM_PRE_PMU |
-					   SND_SOC_DAPM_POST_PMD);
+		*dw = gbaudio_widgets[w->type];
 		break;
 	case snd_soc_dapm_aif_in:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_AIF_IN_E(w->name, w->sname, 0,
-					      SND_SOC_NOPM,
-					      0, 0, gbaudio_widget_event,
-					      SND_SOC_DAPM_PRE_PMU |
-					      SND_SOC_DAPM_POST_PMD);
-		break;
 	case snd_soc_dapm_aif_out:
-		*dw = (struct snd_soc_dapm_widget)
-			SND_SOC_DAPM_AIF_OUT_E(w->name, w->sname, 0,
-					       SND_SOC_NOPM,
-					       0, 0, gbaudio_widget_event,
-					       SND_SOC_DAPM_PRE_PMU |
-					       SND_SOC_DAPM_POST_PMD);
+		*dw = gbaudio_widgets[w->type];
+		dw->sname = w->sname;
 		break;
 	default:
 		ret = -EINVAL;
 		goto error;
 	}
+	dw->name = w->name;
 
 	dev_dbg(module->dev, "%s: widget of type %d created\n", dw->name,
 		dw->id);
-- 
GitLab


From c982c1a83932dccbfe8b8106bd6385be8330e5a5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 16 Jan 2022 09:14:24 +0100
Subject: [PATCH 2771/4878] Linux 5.10.92

Link: https://lore.kernel.org/r/20220114081542.698002137@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c8d677c7eaa11..a113a29545bdb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 91
+SUBLEVEL = 92
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From b074149d20ef1d61f12c605b2ec56aa3d24af26f Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Fri, 14 Jan 2022 21:33:59 -0800
Subject: [PATCH 2772/4878] ANDROID: bpf-fuse: Fix Setattr

Setattr implementation was mixing up some flags, and missing some of
them.

Test: atest android.appsecurity.cts.ExternalStorageHostTest
Bug: 202785178
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Id41fa30881766faad5858b658f5b6871c0ae46b3
---
 fs/fuse/backing.c | 54 +++++++++++++++++++++++++++++------------------
 1 file changed, 33 insertions(+), 21 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 8f9f4e1460233..3099d3c1c962b 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1644,37 +1644,40 @@ void *fuse_getattr_finalize(struct fuse_args *fa,
 	return ERR_PTR(err);
 }
 
-static void fattr_to_iattr(const struct fuse_setattr_in *arg,
+static void fattr_to_iattr(struct fuse_conn *fc,
+			   const struct fuse_setattr_in *arg,
 			   struct iattr *iattr)
 {
-	unsigned int ivalid = arg->valid;
+	unsigned int fvalid = arg->valid;
 
-	if (ivalid & ATTR_MODE)
-		iattr->ia_valid |= FATTR_MODE, iattr->ia_mode = arg->mode;
-	if (ivalid & ATTR_UID) {
-		iattr->ia_valid |= FATTR_UID;
-		iattr->ia_uid = KUIDT_INIT(arg->uid);
+	if (fvalid & FATTR_MODE)
+		iattr->ia_valid |= ATTR_MODE, iattr->ia_mode = arg->mode;
+	if (fvalid & FATTR_UID) {
+		iattr->ia_valid |= ATTR_UID;
+		iattr->ia_uid = make_kuid(fc->user_ns, arg->uid);
 	}
-	if (ivalid & ATTR_GID) {
-		iattr->ia_valid |= FATTR_GID;
-		iattr->ia_gid = KGIDT_INIT(arg->gid);
+	if (fvalid & FATTR_GID) {
+		iattr->ia_valid |= ATTR_GID;
+		iattr->ia_gid = make_kgid(fc->user_ns, arg->gid);
 	}
-	if (ivalid & ATTR_SIZE)
-		iattr->ia_valid |= FATTR_SIZE,  iattr->ia_size = arg->size;
-	if (ivalid & ATTR_ATIME) {
-		iattr->ia_valid |= FATTR_ATIME;
+	if (fvalid & FATTR_SIZE)
+		iattr->ia_valid |= ATTR_SIZE,  iattr->ia_size = arg->size;
+	if (fvalid & FATTR_ATIME) {
+		iattr->ia_valid |= ATTR_ATIME;
 		iattr->ia_atime.tv_sec = arg->atime;
 		iattr->ia_atime.tv_nsec = arg->atimensec;
-		if (!(ivalid & ATTR_ATIME_SET))
-			iattr->ia_valid |= FATTR_ATIME_NOW;
+		if (!(fvalid & FATTR_ATIME_NOW))
+			iattr->ia_valid |= ATTR_ATIME_SET;
 	}
-	if (ivalid & ATTR_MTIME) {
-		iattr->ia_valid |= FATTR_MTIME;
+	if (fvalid & FATTR_MTIME) {
+		iattr->ia_valid |= ATTR_MTIME;
 		iattr->ia_mtime.tv_sec = arg->mtime;
 		iattr->ia_mtime.tv_nsec = arg->mtimensec;
+		if (!(fvalid & FATTR_MTIME_NOW))
+			iattr->ia_valid |= ATTR_MTIME_SET;
 	}
-	if (ivalid & ATTR_CTIME) {
-		iattr->ia_valid |= FATTR_CTIME;
+	if (fvalid & FATTR_CTIME) {
+		iattr->ia_valid |= ATTR_CTIME;
 		iattr->ia_ctime.tv_sec = arg->ctime;
 		iattr->ia_ctime.tv_nsec = arg->ctimensec;
 	}
@@ -1705,12 +1708,21 @@ int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsio,
 int fuse_setattr_backing(struct fuse_args *fa,
 		struct dentry *dentry, struct iattr *attr, struct file *file)
 {
+	struct fuse_conn *fc = get_fuse_conn(dentry->d_inode);
 	const struct fuse_setattr_in *fsi = fa->in_args[0].value;
 	struct iattr new_attr = {0};
 	struct path *backing_path = &get_fuse_dentry(dentry)->backing_path;
 	int res;
 
-	fattr_to_iattr(fsi, &new_attr);
+	fattr_to_iattr(fc, fsi, &new_attr);
+	/* TODO: Some info doesn't get saved by the attr->fattr->attr transition
+	 * When we actually allow the bpf to change these, we may have to consider
+	 * the extra flags more, or pass more info into the bpf. Until then we can
+	 * keep everything except for ATTR_FILE, since we'd need a file on the
+	 * lower fs. For what it's worth, neither f2fs nor ext4 make use of that
+	 * even if it is present.
+	 */
+	new_attr.ia_valid = attr->ia_valid & ~ATTR_FILE;
 	inode_lock(d_inode(backing_path->dentry));
 	res = notify_change(backing_path->dentry, &new_attr, NULL);
 	inode_unlock(d_inode(backing_path->dentry));
-- 
GitLab


From 973230a4ca1dde6408c7e6f27baf2792b1492dc2 Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Mon, 17 Jan 2022 15:53:42 +0800
Subject: [PATCH 2773/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211546634
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: I27d2f29b7afd5ec47e911053a15158e1a560cdf2
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 94218268f8839..3469c2ccbc244 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -35,6 +35,8 @@
   __arch_copy_in_user
   __arch_copy_to_user
   arch_timer_read_counter
+  argv_free
+  argv_split
   arm64_const_caps_ready
   arm64_use_ng_mappings
   __arm_smccc_smc
-- 
GitLab


From d5f74773bf3acfd7b648c5227646a1f2bb76c040 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 22 Jun 2021 11:11:53 +0200
Subject: [PATCH 2774/4878] UPSTREAM: scsi: virtio_scsi: Do not overwrite SCSI
 status

When a sense code is present we should not override the SAM status; the
driver already sets it based on the response from the hypervisor.

In addition we should only copy the sense buffer if one is actually
provided by the hypervisor.

Link: https://lore.kernel.org/r/20210622091153.29231-1-hare@suse.de
Fixes: 464a00c9e0ad ("scsi: core: Kill DRIVER_SENSE")
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit c43ddbf97f46b93727718408d60a47ce8c08f30c)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I6a42c80e2cbd6786f2e08ebe4226f2cddfbb8e97
---
 drivers/scsi/virtio_scsi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 6dac58ae61206..0afba9454e9b6 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -156,13 +156,11 @@ static void virtscsi_complete_cmd(struct virtio_scsi *vscsi, void *buf)
 
 	WARN_ON(virtio32_to_cpu(vscsi->vdev, resp->sense_len) >
 		VIRTIO_SCSI_SENSE_SIZE);
-	if (sc->sense_buffer) {
+	if (resp->sense_len) {
 		memcpy(sc->sense_buffer, resp->sense,
 		       min_t(u32,
 			     virtio32_to_cpu(vscsi->vdev, resp->sense_len),
 			     VIRTIO_SCSI_SENSE_SIZE));
-		if (resp->sense_len)
-			set_driver_byte(sc, DRIVER_SENSE);
 	}
 
 	sc->scsi_done(sc);
-- 
GitLab


From 3b8b51547bbcfe69ff44cd91b151046660b40d03 Mon Sep 17 00:00:00 2001
From: Qi Zheng <zhengqi.arch@bytedance.com>
Date: Fri, 23 Jul 2021 15:50:41 -0700
Subject: [PATCH 2775/4878] UPSTREAM: mm: fix the deadlock in finish_fault()

Commit 63f3655f9501 ("mm, memcg: fix reclaim deadlock with writeback")
fix the following ABBA deadlock by pre-allocating the pte page table
without holding the page lock.

	                                lock_page(A)
                                        SetPageWriteback(A)
                                        unlock_page(A)
  lock_page(B)
                                        lock_page(B)
  pte_alloc_one
    shrink_page_list
      wait_on_page_writeback(A)
                                        SetPageWriteback(B)
                                        unlock_page(B)

                                        # flush A, B to clear the writeback

Commit f9ce0be71d1f ("mm: Cleanup faultaround and finish_fault()
codepaths") reworked the relevant code but ignored this race.  This will
cause the deadlock above to appear again, so fix it.

Link: https://lkml.kernel.org/r/20210721074849.57004-1-zhengqi.arch@bytedance.com
Fixes: f9ce0be71d1f ("mm: Cleanup faultaround and finish_fault() codepaths")
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit e4dc3489143f84f7ed30be58b886bb6772f229b9)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I206746de94a795e41be5593fa512985b5a89aaaf
---
 mm/memory.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/mm/memory.c b/mm/memory.c
index f0a4a07692d67..4d7add8fc2958 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4149,8 +4149,17 @@ vm_fault_t finish_fault(struct vm_fault *vmf)
 				return ret;
 		}
 
-		if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd)))
+		if (vmf->prealloc_pte) {
+			vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd);
+			if (likely(pmd_none(*vmf->pmd))) {
+				mm_inc_nr_ptes(vma->vm_mm);
+				pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte);
+				vmf->prealloc_pte = NULL;
+			}
+			spin_unlock(vmf->ptl);
+		} else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) {
 			return VM_FAULT_OOM;
+		}
 	}
 
 	/* See comment in handle_pte_fault() */
-- 
GitLab


From 819223c02c6569a8ac3d73c8aef4767ebd6f4209 Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Fri, 13 Aug 2021 16:54:27 -0700
Subject: [PATCH 2776/4878] UPSTREAM: kasan, slub: reset tag when printing
 address

The address still includes the tags when it is printed.  With hardware
tag-based kasan enabled, we will get a false positive KASAN issue when
we access metadata.

Reset the tag before we access the metadata.

Link: https://lkml.kernel.org/r/20210804090957.12393-3-Kuan-Ying.Lee@mediatek.com
Fixes: aa1ef4d7b3f6 ("kasan, mm: reset tags when accessing metadata")
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 340caf178ddc2efb0294afaf54c715f7928c258e)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I9657a312f7629b1b44f90ec647bb858d78932b4f
---
 mm/slub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index e76821369b58f..22ef776d7aaa5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -535,8 +535,8 @@ static void print_section(char *level, char *text, u8 *addr,
 			  unsigned int length)
 {
 	metadata_access_enable();
-	print_hex_dump(level, kasan_reset_tag(text), DUMP_PREFIX_ADDRESS,
-			16, 1, addr, length, 1);
+	print_hex_dump(level, text, DUMP_PREFIX_ADDRESS,
+			16, 1, kasan_reset_tag((void *)addr), length, 1);
 	metadata_access_disable();
 }
 
-- 
GitLab


From 5c1e9f311f63108bb3f8331c4808f8dc3931711d Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 2 Dec 2021 16:01:37 +0000
Subject: [PATCH 2777/4878] ANDROID: ABI: Update the generic symbol list

Bug: 207662659
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Ia7f7730e14f9a43c5cf3be22960efd552976223c
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 3469c2ccbc244..fafe9c0fbfbb4 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1983,6 +1983,7 @@
   sysctl_sched_latency
   sysfs_add_file_to_group
   sysfs_add_link_to_group
+  sysfs_create_bin_file
   sysfs_create_file_ns
   sysfs_create_files
   sysfs_create_group
@@ -1991,6 +1992,7 @@
   sysfs_emit
   sysfs_emit_at
   sysfs_notify
+  sysfs_remove_bin_file
   sysfs_remove_file_from_group
   sysfs_remove_file_ns
   sysfs_remove_group
-- 
GitLab


From 44b9bfcd4cdbc57889a0fecf79a6d30237f21bed Mon Sep 17 00:00:00 2001
From: Connor O'Brien <connoro@google.com>
Date: Wed, 12 Jan 2022 00:25:03 +0000
Subject: [PATCH 2778/4878] FROMGIT: tools/resolve_btfids: Build with host
 flags

resolve_btfids is built using $(HOSTCC) and $(HOSTLD) but does not
pick up the corresponding flags. As a result, host-specific settings
(such as a sysroot specified via HOSTCFLAGS=--sysroot=..., or a linker
specified via HOSTLDFLAGS=-fuse-ld=...) will not be respected.

Fix this by setting CFLAGS to KBUILD_HOSTCFLAGS and LDFLAGS to
KBUILD_HOSTLDFLAGS.

Also pass the cflags through to libbpf via EXTRA_CFLAGS to ensure that
the host libbpf is built with flags consistent with resolve_btfids.

Signed-off-by: Connor O'Brien <connoro@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220112002503.115968-1-connoro@google.com
(cherry picked from commit 0e3a1c902ffb56e9fe4416f0cd382c97b09ecbf6
 git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master)
Bug: 203823368
Test: build with CONFIG_DEBUG_INFO_BTF=y
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I09ee10b29b57933653eb1cdd4249bac2d9cebf22
---
 tools/bpf/resolve_btfids/Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile
index bb9fa8de7e625..a207095dd8e4f 100644
--- a/tools/bpf/resolve_btfids/Makefile
+++ b/tools/bpf/resolve_btfids/Makefile
@@ -19,6 +19,8 @@ CC       = $(HOSTCC)
 LD       = $(HOSTLD)
 ARCH     = $(HOSTARCH)
 RM      ?= rm
+CFLAGS  := $(KBUILD_HOSTCFLAGS)
+LDFLAGS := $(KBUILD_HOSTLDFLAGS)
 
 OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
 
@@ -41,9 +43,10 @@ $(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd
 	$(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
 
 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)/libbpf
-	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)  OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
+	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)  OUTPUT=$(abspath $(dir $@))/ \
+		EXTRA_CFLAGS="$(CFLAGS)" $(abspath $@)
 
-CFLAGS := -g \
+CFLAGS += -g \
           -I$(srctree)/tools/include \
           -I$(srctree)/tools/include/uapi \
           -I$(LIBBPF_SRC) \
-- 
GitLab


From 3778d1a75af08d14ae900266a12ef8ad9b560c2a Mon Sep 17 00:00:00 2001
From: Connor O'Brien <connoro@google.com>
Date: Thu, 13 Jan 2022 19:18:57 -0800
Subject: [PATCH 2779/4878] ANDROID: GKI: defconfig: enable BTF debug info

Build BTF type info into the kernel to enable use of BPF-based tools
such as BCC's libbpf-tools.

Bug: 203823368
Test: build
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ice20d6bbf83b3a2407a553a37a9befff6c6bb66d
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index d5c5ed23294a7..98679be2ec203 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -672,6 +672,7 @@ CONFIG_PRINTK_CALLER=y
 CONFIG_DYNAMIC_DEBUG_CORE=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DEBUG_INFO_BTF=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_HEADERS_INSTALL=y
 # CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 0e46ce5459ad5..ffc7586f25a6b 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -605,6 +605,7 @@ CONFIG_PRINTK_TIME=y
 CONFIG_DYNAMIC_DEBUG_CORE=y
 CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DEBUG_INFO_BTF=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_HEADERS_INSTALL=y
 # CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
-- 
GitLab


From bf8d29c109b47c7ba9a88b6eadd782882735b2dc Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Wed, 4 Aug 2021 23:00:40 -0700
Subject: [PATCH 2780/4878] Revert "ANDROID: fix up 60500a42286d ("ANDROID: mm:
 add a field to store names for private anonymous memory")"

This reverts commit b5c8a97d5085738b62ecd9c0b14574b3ef384bec.
Replacing out-of-tree implementation with the upstream one.

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I8f97071b73bfb1af66a8349c9575e7c53af00642
---
 fs/proc/task_mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 154b9f5299e26..ea12671a67101 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -147,8 +147,8 @@ static void seq_print_vma_name(struct seq_file *m, struct vm_area_struct *vma)
 		long pages_pinned;
 		struct page *page;
 
-		pages_pinned = get_user_pages_remote(mm, page_start_vaddr, 1, 0,
-						     &page, NULL, NULL);
+		pages_pinned = get_user_pages_remote(current, mm,
+				page_start_vaddr, 1, 0, &page, NULL, NULL);
 		if (pages_pinned < 1) {
 			seq_puts(m, "<fault>]");
 			return;
-- 
GitLab


From ea253a055d4d25425c814db04b2fc86337ac7838 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Tue, 28 Dec 2021 14:21:33 -0800
Subject: [PATCH 2781/4878] Revert "ANDROID: mm: fix up new call to
 vma_merge()"

This reverts commit 7df9282d8ecb5308401613deb5cfbe77beab9d6f.
Replacing out-of-tree implementation with the upstream one.

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Iefc8aeeea89d89b4960d51da8625cf5d48b5e98f
---
 mm/mmap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index fe20804055a33..6c16afe7c01f8 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1890,8 +1890,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		 */
 		if (unlikely(vm_flags != vma->vm_flags && prev)) {
 			merge = vma_merge(mm, prev, vma->vm_start, vma->vm_end, vma->vm_flags,
-				NULL, vma->vm_file, vma->vm_pgoff, NULL, NULL_VM_UFFD_CTX,
-				vma_get_anon_name(vma));
+				NULL, vma->vm_file, vma->vm_pgoff, NULL, NULL_VM_UFFD_CTX);
 			if (merge) {
 				/* ->mmap() can change vma->vm_file and fput the original file. So
 				 * fput the vma->vm_file here or we would add an extra fput for file
-- 
GitLab


From d99767b97a9d28c9c19a6e54f80e3b30fd041553 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Sun, 26 Dec 2021 15:34:54 -0800
Subject: [PATCH 2782/4878] Revert "ANDROID: mm: add a field to store names for
 private anonymous memory"

This reverts commit 60500a42286de35f00d2a195f2021bcc029f11a1.
Replacing out-of-tree implementation with the upstream one.

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ic34c8e16d51ccf9f00cb59d2de341e911bcb2828
---
 Documentation/filesystems/proc.rst |   6 --
 fs/proc/task_mmu.c                 |  64 +-----------
 fs/userfaultfd.c                   |   9 +-
 include/linux/mm.h                 |   7 +-
 include/linux/mm_types.h           |  24 +----
 include/uapi/linux/prctl.h         |   3 -
 kernel/sys.c                       | 152 -----------------------------
 mm/madvise.c                       |   2 +-
 mm/mempolicy.c                     |   3 +-
 mm/mlock.c                         |   2 +-
 mm/mmap.c                          |  38 +++-----
 mm/mprotect.c                      |   2 +-
 12 files changed, 30 insertions(+), 282 deletions(-)

diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index 1b506a51d1482..1d562f3b8ea80 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -429,8 +429,6 @@ is not associated with a file:
  [stack]                    the stack of the main process
  [vdso]                     the "virtual dynamic shared object",
                             the kernel system call handler
- [anon:<name>]              an anonymous mapping that has been
-                            named by userspace
  =======                    ====================================
 
  or if empty, the mapping is anonymous.
@@ -464,7 +462,6 @@ Memory Area, or VMA) there is a series of lines such as the following::
     Locked:                0 kB
     THPeligible:           0
     VmFlags: rd ex mr mw me dw
-    Name: name from userspace
 
 The first of these lines shows the same information as is displayed for the
 mapping in /proc/PID/maps.  Following lines show the size of the mapping
@@ -558,9 +555,6 @@ be vanished or the reverse -- new added. Interpretation of their meaning
 might change in future as well. So each consumer of these flags has to
 follow each specific kernel version for the exact semantic.
 
-The "Name" field will only be present on a mapping that has been named by
-userspace, and will show the name passed in by userspace.
-
 This file is only present if the CONFIG_MMU kernel configuration option is
 enabled.
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index ea12671a67101..a0143b6562906 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -123,56 +123,6 @@ static void release_task_mempolicy(struct proc_maps_private *priv)
 }
 #endif
 
-static void seq_print_vma_name(struct seq_file *m, struct vm_area_struct *vma)
-{
-	const char __user *name = vma_get_anon_name(vma);
-	struct mm_struct *mm = vma->vm_mm;
-
-	unsigned long page_start_vaddr;
-	unsigned long page_offset;
-	unsigned long num_pages;
-	unsigned long max_len = NAME_MAX;
-	int i;
-
-	page_start_vaddr = (unsigned long)name & PAGE_MASK;
-	page_offset = (unsigned long)name - page_start_vaddr;
-	num_pages = DIV_ROUND_UP(page_offset + max_len, PAGE_SIZE);
-
-	seq_puts(m, "[anon:");
-
-	for (i = 0; i < num_pages; i++) {
-		int len;
-		int write_len;
-		const char *kaddr;
-		long pages_pinned;
-		struct page *page;
-
-		pages_pinned = get_user_pages_remote(current, mm,
-				page_start_vaddr, 1, 0, &page, NULL, NULL);
-		if (pages_pinned < 1) {
-			seq_puts(m, "<fault>]");
-			return;
-		}
-
-		kaddr = (const char *)kmap(page);
-		len = min(max_len, PAGE_SIZE - page_offset);
-		write_len = strnlen(kaddr + page_offset, len);
-		seq_write(m, kaddr + page_offset, write_len);
-		kunmap(page);
-		put_user_page(page);
-
-		/* if strnlen hit a null terminator then we're done */
-		if (write_len != len)
-			break;
-
-		max_len -= len;
-		page_offset = 0;
-		page_start_vaddr += PAGE_SIZE;
-	}
-
-	seq_putc(m, ']');
-}
-
 static void *m_start(struct seq_file *m, loff_t *ppos)
 {
 	struct proc_maps_private *priv = m->private;
@@ -369,15 +319,8 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 			goto done;
 		}
 
-		if (is_stack(vma)) {
+		if (is_stack(vma))
 			name = "[stack]";
-			goto done;
-		}
-
-		if (vma_get_anon_name(vma)) {
-			seq_pad(m, ' ');
-			seq_print_vma_name(m, vma);
-		}
 	}
 
 done:
@@ -880,11 +823,6 @@ static int show_smap(struct seq_file *m, void *v)
 	smap_gather_stats(vma, &mss, 0);
 
 	show_map_vma(m, vma);
-	if (vma_get_anon_name(vma)) {
-		seq_puts(m, "Name:           ");
-		seq_print_vma_name(m, vma);
-		seq_putc(m, '\n');
-	}
 
 	SEQ_PUT_DEC("Size:           ", vma->vm_end - vma->vm_start);
 	SEQ_PUT_DEC(" kB\nKernelPageSize: ", vma_kernel_pagesize(vma));
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 01cdd2c57b655..db05aae28f4bf 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -879,8 +879,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 				 new_flags, vma->anon_vma,
 				 vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 NULL_VM_UFFD_CTX,
-				 vma_get_anon_name(vma));
+				 NULL_VM_UFFD_CTX);
 		if (prev)
 			vma = prev;
 		else
@@ -1437,8 +1436,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
 		prev = vma_merge(mm, prev, start, vma_end, new_flags,
 				 vma->anon_vma, vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 ((struct vm_userfaultfd_ctx){ ctx }),
-				 vma_get_anon_name(vma));
+				 ((struct vm_userfaultfd_ctx){ ctx }));
 		if (prev) {
 			vma = prev;
 			goto next;
@@ -1617,8 +1615,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
 		prev = vma_merge(mm, prev, start, vma_end, new_flags,
 				 vma->anon_vma, vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 NULL_VM_UFFD_CTX,
-				 vma_get_anon_name(vma));
+				 NULL_VM_UFFD_CTX);
 		if (prev) {
 			vma = prev;
 			goto next;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index bae145a4a09d2..d46ff82230a2b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2672,16 +2672,15 @@ extern struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *anon, struct file *file,
 	pgoff_t pgoff, struct mempolicy *mpol, struct vm_userfaultfd_ctx uff,
-	const char __user *user, bool keep_locked);
+	bool keep_locked);
 
 static inline struct vm_area_struct *vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *anon, struct file *file,
-	pgoff_t off, struct mempolicy *pol, struct vm_userfaultfd_ctx uff,
-	const char __user *user)
+	pgoff_t off, struct mempolicy *pol, struct vm_userfaultfd_ctx uff)
 {
 	return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off,
-			   pol, uff, user, false);
+			   pol, uff, false);
 }
 
 extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index e7bab1c7a452e..6bdd4f2149811 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -339,18 +339,11 @@ struct vm_area_struct {
 	/*
 	 * For areas with an address space and backing store,
 	 * linkage into the address_space->i_mmap interval tree.
-	 *
-	 * For private anonymous mappings, a pointer to a null terminated string
-	 * in the user process containing the name given to the vma, or NULL
-	 * if unnamed.
 	 */
-	union {
-		struct {
-			struct rb_node rb;
-			unsigned long rb_subtree_last;
-		} shared;
-		const char __user *anon_name;
-	};
+	struct {
+		struct rb_node rb;
+		unsigned long rb_subtree_last;
+	} shared;
 
 	/*
 	 * A file's MAP_PRIVATE vma can be in both i_mmap tree and anon_vma
@@ -835,13 +828,4 @@ typedef struct {
 	unsigned long val;
 } swp_entry_t;
 
-/* Return the name for an anonymous mapping or NULL for a file-backed mapping */
-static inline const char __user *vma_get_anon_name(struct vm_area_struct *vma)
-{
-	if (vma->vm_file)
-		return NULL;
-
-	return vma->anon_name;
-}
-
 #endif /* _LINUX_MM_TYPES_H */
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 58b37b12e7452..2a725b631dca5 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -248,9 +248,6 @@ struct prctl_mm_map {
 #define PR_SET_IO_FLUSHER		57
 #define PR_GET_IO_FLUSHER		58
 
-#define PR_SET_VMA		0x53564d41
-# define PR_SET_VMA_ANON_NAME		0
-
 /* Set/get enabled arm64 pointer authentication keys */
 #define PR_PAC_SET_ENABLED_KEYS		60
 #define PR_PAC_GET_ENABLED_KEYS		61
diff --git a/kernel/sys.c b/kernel/sys.c
index 980e3abf9a850..0c4b9d6407cba 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -42,8 +42,6 @@
 #include <linux/syscore_ops.h>
 #include <linux/version.h>
 #include <linux/ctype.h>
-#include <linux/mm.h>
-#include <linux/mempolicy.h>
 
 #include <linux/compat.h>
 #include <linux/syscalls.h>
@@ -2281,153 +2279,6 @@ int __weak arch_prctl_spec_ctrl_set(struct task_struct *t, unsigned long which,
 	return -EINVAL;
 }
 
-#ifdef CONFIG_MMU
-static int prctl_update_vma_anon_name(struct vm_area_struct *vma,
-		struct vm_area_struct **prev,
-		unsigned long start, unsigned long end,
-		const char __user *name_addr)
-{
-	struct mm_struct *mm = vma->vm_mm;
-	int error = 0;
-	pgoff_t pgoff;
-
-	if (name_addr == vma_get_anon_name(vma)) {
-		*prev = vma;
-		goto out;
-	}
-
-	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
-	*prev = vma_merge(mm, *prev, start, end, vma->vm_flags, vma->anon_vma,
-				vma->vm_file, pgoff, vma_policy(vma),
-				vma->vm_userfaultfd_ctx, name_addr);
-	if (*prev) {
-		vma = *prev;
-		goto success;
-	}
-
-	*prev = vma;
-
-	if (start != vma->vm_start) {
-		error = split_vma(mm, vma, start, 1);
-		if (error)
-			goto out;
-	}
-
-	if (end != vma->vm_end) {
-		error = split_vma(mm, vma, end, 0);
-		if (error)
-			goto out;
-	}
-
-success:
-	if (!vma->vm_file)
-		vma->anon_name = name_addr;
-
-out:
-	if (error == -ENOMEM)
-		error = -EAGAIN;
-	return error;
-}
-
-static int prctl_set_vma_anon_name(unsigned long start, unsigned long end,
-			unsigned long arg)
-{
-	unsigned long tmp;
-	struct vm_area_struct *vma, *prev;
-	int unmapped_error = 0;
-	int error = -EINVAL;
-
-	/*
-	 * If the interval [start,end) covers some unmapped address
-	 * ranges, just ignore them, but return -ENOMEM at the end.
-	 * - this matches the handling in madvise.
-	 */
-	vma = find_vma_prev(current->mm, start, &prev);
-	if (vma && start > vma->vm_start)
-		prev = vma;
-
-	for (;;) {
-		/* Still start < end. */
-		error = -ENOMEM;
-		if (!vma)
-			return error;
-
-		/* Here start < (end|vma->vm_end). */
-		if (start < vma->vm_start) {
-			unmapped_error = -ENOMEM;
-			start = vma->vm_start;
-			if (start >= end)
-				return error;
-		}
-
-		/* Here vma->vm_start <= start < (end|vma->vm_end) */
-		tmp = vma->vm_end;
-		if (end < tmp)
-			tmp = end;
-
-		/* Here vma->vm_start <= start < tmp <= (end|vma->vm_end). */
-		error = prctl_update_vma_anon_name(vma, &prev, start, tmp,
-				(const char __user *)arg);
-		if (error)
-			return error;
-		start = tmp;
-		if (prev && start < prev->vm_end)
-			start = prev->vm_end;
-		error = unmapped_error;
-		if (start >= end)
-			return error;
-		if (prev)
-			vma = prev->vm_next;
-		else	/* madvise_remove dropped mmap_lock */
-			vma = find_vma(current->mm, start);
-	}
-}
-
-static int prctl_set_vma(unsigned long opt, unsigned long start,
-		unsigned long len_in, unsigned long arg)
-{
-	struct mm_struct *mm = current->mm;
-	int error;
-	unsigned long len;
-	unsigned long end;
-
-	if (start & ~PAGE_MASK)
-		return -EINVAL;
-	len = (len_in + ~PAGE_MASK) & PAGE_MASK;
-
-	/* Check to see whether len was rounded up from small -ve to zero */
-	if (len_in && !len)
-		return -EINVAL;
-
-	end = start + len;
-	if (end < start)
-		return -EINVAL;
-
-	if (end == start)
-		return 0;
-
-	mmap_write_lock(mm);
-
-	switch (opt) {
-	case PR_SET_VMA_ANON_NAME:
-		error = prctl_set_vma_anon_name(start, end, arg);
-		break;
-	default:
-		error = -EINVAL;
-	}
-
-	mmap_write_unlock(mm);
-
-	return error;
-}
-#else /* CONFIG_MMU */
-static int prctl_set_vma(unsigned long opt, unsigned long start,
-		unsigned long len_in, unsigned long arg)
-{
-	return -EINVAL;
-}
-#endif
-
 #define PR_IO_FLUSHER (PF_MEMALLOC_NOIO | PF_LOCAL_THROTTLE)
 
 SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
@@ -2642,9 +2493,6 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
 			return -EINVAL;
 		error = arch_prctl_spec_ctrl_set(me, arg2, arg3);
 		break;
-	case PR_SET_VMA:
-		error = prctl_set_vma(arg2, arg3, arg4, arg5);
-		break;
 	case PR_PAC_RESET_KEYS:
 		if (arg3 || arg4 || arg5)
 			return -EINVAL;
diff --git a/mm/madvise.c b/mm/madvise.c
index 9ec5037bf297b..a9475e276ffca 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -136,7 +136,7 @@ static long madvise_behavior(struct vm_area_struct *vma,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
 			  vma->vm_file, pgoff, vma_policy(vma),
-			  vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
+			  vma->vm_userfaultfd_ctx);
 	if (*prev) {
 		vma = *prev;
 		goto success;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index a20675d699d44..9b5842c9082f4 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -841,8 +841,7 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 			((vmstart - vma->vm_start) >> PAGE_SHIFT);
 		prev = vma_merge(mm, prev, vmstart, vmend, vma->vm_flags,
 				 vma->anon_vma, vma->vm_file, pgoff,
-				 new_pol, vma->vm_userfaultfd_ctx,
-				 vma_get_anon_name(vma));
+				 new_pol, vma->vm_userfaultfd_ctx);
 		if (prev) {
 			vma = prev;
 			next = vma->vm_next;
diff --git a/mm/mlock.c b/mm/mlock.c
index 188aa7458c990..40f1162aa0560 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -550,7 +550,7 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
 			  vma->vm_file, pgoff, vma_policy(vma),
-			  vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
+			  vma->vm_userfaultfd_ctx);
 	if (*prev) {
 		vma = *prev;
 		goto success;
diff --git a/mm/mmap.c b/mm/mmap.c
index 6c16afe7c01f8..c101e8f9a2b14 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1082,8 +1082,7 @@ again:
  */
 static inline int is_mergeable_vma(struct vm_area_struct *vma,
 				struct file *file, unsigned long vm_flags,
-				struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-				const char __user *anon_name)
+				struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
 {
 	/*
 	 * VM_SOFTDIRTY should not prevent from VMA merging, if we
@@ -1101,8 +1100,6 @@ static inline int is_mergeable_vma(struct vm_area_struct *vma,
 		return 0;
 	if (!is_mergeable_vm_userfaultfd_ctx(vma, vm_userfaultfd_ctx))
 		return 0;
-	if (vma_get_anon_name(vma) != anon_name)
-		return 0;
 	return 1;
 }
 
@@ -1135,10 +1132,9 @@ static int
 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
 		     struct anon_vma *anon_vma, struct file *file,
 		     pgoff_t vm_pgoff,
-		     struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-		     const char __user *anon_name)
+		     struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
 {
-	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
+	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		if (vma->vm_pgoff == vm_pgoff)
 			return 1;
@@ -1157,10 +1153,9 @@ static int
 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 		    struct anon_vma *anon_vma, struct file *file,
 		    pgoff_t vm_pgoff,
-		    struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-		    const char __user *anon_name)
+		    struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
 {
-	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
+	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		pgoff_t vm_pglen;
 		vm_pglen = vma_pages(vma);
@@ -1171,9 +1166,9 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 }
 
 /*
- * Given a mapping request (addr,end,vm_flags,file,pgoff,anon_name),
- * figure out whether that can be merged with its predecessor or its
- * successor.  Or both (it neatly fills a hole).
+ * Given a mapping request (addr,end,vm_flags,file,pgoff), figure out
+ * whether that can be merged with its predecessor or its successor.
+ * Or both (it neatly fills a hole).
  *
  * In most cases - when called for mmap, brk or mremap - [addr,end) is
  * certain not to be mapped by the time vma_merge is called; but when
@@ -1219,7 +1214,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			struct anon_vma *anon_vma, struct file *file,
 			pgoff_t pgoff, struct mempolicy *policy,
 			struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-			const char __user *anon_name, bool keep_locked)
+			bool keep_locked)
 {
 	pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
 	struct vm_area_struct *area, *next;
@@ -1249,8 +1244,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			mpol_equal(vma_policy(prev), policy) &&
 			can_vma_merge_after(prev, vm_flags,
 					    anon_vma, file, pgoff,
-					    vm_userfaultfd_ctx,
-					    anon_name)) {
+					    vm_userfaultfd_ctx)) {
 		/*
 		 * OK, it can.  Can we now merge in the successor as well?
 		 */
@@ -1259,8 +1253,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 				can_vma_merge_before(next, vm_flags,
 						     anon_vma, file,
 						     pgoff+pglen,
-						     vm_userfaultfd_ctx,
-						     anon_name) &&
+						     vm_userfaultfd_ctx) &&
 				is_mergeable_anon_vma(prev->anon_vma,
 						      next->anon_vma, NULL)) {
 							/* cases 1, 6 */
@@ -1284,8 +1277,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			mpol_equal(policy, vma_policy(next)) &&
 			can_vma_merge_before(next, vm_flags,
 					     anon_vma, file, pgoff+pglen,
-					     vm_userfaultfd_ctx,
-					     anon_name)) {
+					     vm_userfaultfd_ctx)) {
 		if (prev && addr < prev->vm_end)	/* case 4 */
 			err = __vma_adjust(prev, prev->vm_start,
 					 addr, prev->vm_pgoff, NULL, next,
@@ -1831,7 +1823,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	 * Can we just expand an old mapping?
 	 */
 	vma = vma_merge(mm, prev, addr, addr + len, vm_flags,
-			NULL, file, pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
+			NULL, file, pgoff, NULL, NULL_VM_UFFD_CTX);
 	if (vma)
 		goto out;
 
@@ -3201,7 +3193,7 @@ static int do_brk_flags(unsigned long addr, unsigned long len, unsigned long fla
 
 	/* Can we just expand an old private anonymous mapping? */
 	vma = vma_merge(mm, prev, addr, addr + len, flags,
-			NULL, NULL, pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
+			NULL, NULL, pgoff, NULL, NULL_VM_UFFD_CTX);
 	if (vma)
 		goto out;
 
@@ -3412,7 +3404,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	new_vma = __vma_merge(mm, prev, addr, addr + len, vma->vm_flags,
 			      vma->anon_vma, vma->vm_file, pgoff,
 			      vma_policy(vma), vma->vm_userfaultfd_ctx,
-				vma_get_anon_name(vma), true);
+			      true);
 	if (new_vma) {
 		/*
 		 * Source vma may have been merged into new_vma
diff --git a/mm/mprotect.c b/mm/mprotect.c
index d95115a572837..950facea5c631 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -454,7 +454,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*pprev = vma_merge(mm, *pprev, start, end, newflags,
 			   vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
-			   vma->vm_userfaultfd_ctx, vma_get_anon_name(vma));
+			   vma->vm_userfaultfd_ctx);
 	if (*pprev) {
 		vma = *pprev;
 		VM_WARN_ON((vma->vm_flags ^ newflags) & ~VM_SOFTDIRTY);
-- 
GitLab


From eaf81c42178027b0cea45214285f34283a2edf28 Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@google.com>
Date: Fri, 14 Jan 2022 14:05:55 -0800
Subject: [PATCH 2783/4878] UPSTREAM: mm: rearrange madvise code to allow for
 reuse

Patch series "mm: rearrange madvise code to allow for reuse", v11.

Avoid performance regression of the new anon vma name field refcounting it.

I checked the image sizes with allnoconfig builds:

  unpatched Linus' ToT
     text    data     bss     dec     hex filename
  1324759      32   73928 1398719 1557bf vmlinux

  After the first patch is applied (madvise refactoring)
     text    data     bss     dec     hex filename
  1322346      32   73928 1396306 154e52 vmlinux
  >>> 2413 bytes decrease vs ToT <<<

  After all patches applied with CONFIG_ANON_VMA_NAME=n
     text    data     bss     dec     hex filename
  1322337      32   73928 1396297 154e49 vmlinux
  >>> 2422 bytes decrease vs ToT <<<

  After all patches applied with CONFIG_ANON_VMA_NAME=y
     text    data     bss     dec     hex filename
  1325228      32   73928 1399188 155994 vmlinux
  >>> 469 bytes increase vs ToT <<<

This patch (of 3):

Refactor the madvise syscall to allow for parts of it to be reused by a
prctl syscall that affects vmas.

Move the code that walks vmas in a virtual address range into a function
that takes a function pointer as a parameter.  The only caller for now
is sys_madvise, which uses it to call madvise_vma_behavior on each vma,
but the next patch will add an additional caller.

Move handling all vma behaviors inside madvise_behavior, and rename it
to madvise_vma_behavior.

Move the code that updates the flags on a vma, including splitting or
merging the vma as necessary, into a new function called
madvise_update_vma.  The next patch will add support for updating a new
anon_name field as well.

Link: https://lkml.kernel.org/r/20211019215511.3771969-1-surenb@google.com
Signed-off-by: Colin Cross <ccross@google.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Jan Glauber <jan.glauber@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Rob Landley <rob@landley.net>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Serge E. Hallyn" <serge.hallyn@ubuntu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Shaohua Li <shli@fusionio.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit ac1e9acc5acf0b41d54de6a4c45471644f8b97ff)

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: If96c14ca3acc3795de373d658ba0a940dda68e1c
---
 mm/madvise.c | 332 +++++++++++++++++++++++++++------------------------
 1 file changed, 175 insertions(+), 157 deletions(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index a9475e276ffca..5e011fc7a98b7 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -61,76 +61,20 @@ static int madvise_need_mmap_write(int behavior)
 }
 
 /*
- * We can potentially split a vm area into separate
- * areas, each area with its own behavior.
+ * Update the vm_flags on region of a vma, splitting it or merging it as
+ * necessary.  Must be called with mmap_sem held for writing;
  */
-static long madvise_behavior(struct vm_area_struct *vma,
-		     struct vm_area_struct **prev,
-		     unsigned long start, unsigned long end, int behavior)
+static int madvise_update_vma(struct vm_area_struct *vma,
+			      struct vm_area_struct **prev, unsigned long start,
+			      unsigned long end, unsigned long new_flags)
 {
 	struct mm_struct *mm = vma->vm_mm;
-	int error = 0;
+	int error;
 	pgoff_t pgoff;
-	unsigned long new_flags = vma->vm_flags;
-
-	switch (behavior) {
-	case MADV_NORMAL:
-		new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
-		break;
-	case MADV_SEQUENTIAL:
-		new_flags = (new_flags & ~VM_RAND_READ) | VM_SEQ_READ;
-		break;
-	case MADV_RANDOM:
-		new_flags = (new_flags & ~VM_SEQ_READ) | VM_RAND_READ;
-		break;
-	case MADV_DONTFORK:
-		new_flags |= VM_DONTCOPY;
-		break;
-	case MADV_DOFORK:
-		if (vma->vm_flags & VM_IO) {
-			error = -EINVAL;
-			goto out;
-		}
-		new_flags &= ~VM_DONTCOPY;
-		break;
-	case MADV_WIPEONFORK:
-		/* MADV_WIPEONFORK is only supported on anonymous memory. */
-		if (vma->vm_file || vma->vm_flags & VM_SHARED) {
-			error = -EINVAL;
-			goto out;
-		}
-		new_flags |= VM_WIPEONFORK;
-		break;
-	case MADV_KEEPONFORK:
-		new_flags &= ~VM_WIPEONFORK;
-		break;
-	case MADV_DONTDUMP:
-		new_flags |= VM_DONTDUMP;
-		break;
-	case MADV_DODUMP:
-		if (!is_vm_hugetlb_page(vma) && new_flags & VM_SPECIAL) {
-			error = -EINVAL;
-			goto out;
-		}
-		new_flags &= ~VM_DONTDUMP;
-		break;
-	case MADV_MERGEABLE:
-	case MADV_UNMERGEABLE:
-		error = ksm_madvise(vma, start, end, behavior, &new_flags);
-		if (error)
-			goto out_convert_errno;
-		break;
-	case MADV_HUGEPAGE:
-	case MADV_NOHUGEPAGE:
-		error = hugepage_madvise(vma, &new_flags, behavior);
-		if (error)
-			goto out_convert_errno;
-		break;
-	}
 
 	if (new_flags == vma->vm_flags) {
 		*prev = vma;
-		goto out;
+		return 0;
 	}
 
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
@@ -145,23 +89,19 @@ static long madvise_behavior(struct vm_area_struct *vma,
 	*prev = vma;
 
 	if (start != vma->vm_start) {
-		if (unlikely(mm->map_count >= sysctl_max_map_count)) {
-			error = -ENOMEM;
-			goto out;
-		}
+		if (unlikely(mm->map_count >= sysctl_max_map_count))
+			return -ENOMEM;
 		error = __split_vma(mm, vma, start, 1);
 		if (error)
-			goto out_convert_errno;
+			return error;
 	}
 
 	if (end != vma->vm_end) {
-		if (unlikely(mm->map_count >= sysctl_max_map_count)) {
-			error = -ENOMEM;
-			goto out;
-		}
+		if (unlikely(mm->map_count >= sysctl_max_map_count))
+			return -ENOMEM;
 		error = __split_vma(mm, vma, end, 0);
 		if (error)
-			goto out_convert_errno;
+			return error;
 	}
 
 success:
@@ -172,15 +112,7 @@ success:
 	WRITE_ONCE(vma->vm_flags, new_flags);
 	vm_write_end(vma);
 
-out_convert_errno:
-	/*
-	 * madvise() returns EAGAIN if kernel resources, such as
-	 * slab, are temporarily unavailable.
-	 */
-	if (error == -ENOMEM)
-		error = -EAGAIN;
-out:
-	return error;
+	return 0;
 }
 
 #ifdef CONFIG_SWAP
@@ -878,6 +810,91 @@ static long madvise_remove(struct vm_area_struct *vma,
 	return error;
 }
 
+/*
+ * Apply an madvise behavior to a region of a vma.  madvise_update_vma
+ * will handle splitting a vm area into separate areas, each area with its own
+ * behavior.
+ */
+static int madvise_vma_behavior(struct vm_area_struct *vma,
+				struct vm_area_struct **prev,
+				unsigned long start, unsigned long end,
+				unsigned long behavior)
+{
+	int error;
+	unsigned long new_flags = vma->vm_flags;
+
+	switch (behavior) {
+	case MADV_REMOVE:
+		return madvise_remove(vma, prev, start, end);
+	case MADV_WILLNEED:
+		return madvise_willneed(vma, prev, start, end);
+	case MADV_COLD:
+		return madvise_cold(vma, prev, start, end);
+	case MADV_PAGEOUT:
+		return madvise_pageout(vma, prev, start, end);
+	case MADV_FREE:
+	case MADV_DONTNEED:
+		return madvise_dontneed_free(vma, prev, start, end, behavior);
+	case MADV_NORMAL:
+		new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ;
+		break;
+	case MADV_SEQUENTIAL:
+		new_flags = (new_flags & ~VM_RAND_READ) | VM_SEQ_READ;
+		break;
+	case MADV_RANDOM:
+		new_flags = (new_flags & ~VM_SEQ_READ) | VM_RAND_READ;
+		break;
+	case MADV_DONTFORK:
+		new_flags |= VM_DONTCOPY;
+		break;
+	case MADV_DOFORK:
+		if (vma->vm_flags & VM_IO)
+			return -EINVAL;
+		new_flags &= ~VM_DONTCOPY;
+		break;
+	case MADV_WIPEONFORK:
+		/* MADV_WIPEONFORK is only supported on anonymous memory. */
+		if (vma->vm_file || vma->vm_flags & VM_SHARED)
+			return -EINVAL;
+		new_flags |= VM_WIPEONFORK;
+		break;
+	case MADV_KEEPONFORK:
+		new_flags &= ~VM_WIPEONFORK;
+		break;
+	case MADV_DONTDUMP:
+		new_flags |= VM_DONTDUMP;
+		break;
+	case MADV_DODUMP:
+		if (!is_vm_hugetlb_page(vma) && new_flags & VM_SPECIAL)
+			return -EINVAL;
+		new_flags &= ~VM_DONTDUMP;
+		break;
+	case MADV_MERGEABLE:
+	case MADV_UNMERGEABLE:
+		error = ksm_madvise(vma, start, end, behavior, &new_flags);
+		if (error)
+			goto out;
+		break;
+	case MADV_HUGEPAGE:
+	case MADV_NOHUGEPAGE:
+		error = hugepage_madvise(vma, &new_flags, behavior);
+		if (error)
+			goto out;
+		break;
+	}
+
+	error = madvise_update_vma(vma, prev, start, end, new_flags);
+
+out:
+	/*
+	 * madvise() returns EAGAIN if kernel resources, such as
+	 * slab, are temporarily unavailable.
+	 */
+	if (error == -ENOMEM)
+		error = -EAGAIN;
+	return error;
+}
+
 #ifdef CONFIG_MEMORY_FAILURE
 /*
  * Error injection support for memory error handling.
@@ -931,27 +948,6 @@ static int madvise_inject_error(int behavior,
 }
 #endif
 
-static long
-madvise_vma(struct vm_area_struct *vma, struct vm_area_struct **prev,
-		unsigned long start, unsigned long end, int behavior)
-{
-	switch (behavior) {
-	case MADV_REMOVE:
-		return madvise_remove(vma, prev, start, end);
-	case MADV_WILLNEED:
-		return madvise_willneed(vma, prev, start, end);
-	case MADV_COLD:
-		return madvise_cold(vma, prev, start, end);
-	case MADV_PAGEOUT:
-		return madvise_pageout(vma, prev, start, end);
-	case MADV_FREE:
-	case MADV_DONTNEED:
-		return madvise_dontneed_free(vma, prev, start, end, behavior);
-	default:
-		return madvise_behavior(vma, prev, start, end, behavior);
-	}
-}
-
 static bool
 madvise_behavior_valid(int behavior)
 {
@@ -1002,6 +998,73 @@ process_madvise_behavior_valid(int behavior)
 	}
 }
 
+/*
+ * Walk the vmas in range [start,end), and call the visit function on each one.
+ * The visit function will get start and end parameters that cover the overlap
+ * between the current vma and the original range.  Any unmapped regions in the
+ * original range will result in this function returning -ENOMEM while still
+ * calling the visit function on all of the existing vmas in the range.
+ * Must be called with the mmap_lock held for reading or writing.
+ */
+static
+int madvise_walk_vmas(struct mm_struct *mm, unsigned long start,
+		      unsigned long end, unsigned long arg,
+		      int (*visit)(struct vm_area_struct *vma,
+				   struct vm_area_struct **prev, unsigned long start,
+				   unsigned long end, unsigned long arg))
+{
+	struct vm_area_struct *vma;
+	struct vm_area_struct *prev;
+	unsigned long tmp;
+	int unmapped_error = 0;
+
+	/*
+	 * If the interval [start,end) covers some unmapped address
+	 * ranges, just ignore them, but return -ENOMEM at the end.
+	 * - different from the way of handling in mlock etc.
+	 */
+	vma = find_vma_prev(mm, start, &prev);
+	if (vma && start > vma->vm_start)
+		prev = vma;
+
+	for (;;) {
+		int error;
+
+		/* Still start < end. */
+		if (!vma)
+			return -ENOMEM;
+
+		/* Here start < (end|vma->vm_end). */
+		if (start < vma->vm_start) {
+			unmapped_error = -ENOMEM;
+			start = vma->vm_start;
+			if (start >= end)
+				break;
+		}
+
+		/* Here vma->vm_start <= start < (end|vma->vm_end) */
+		tmp = vma->vm_end;
+		if (end < tmp)
+			tmp = end;
+
+		/* Here vma->vm_start <= start < tmp <= (end|vma->vm_end). */
+		error = visit(vma, &prev, start, tmp, arg);
+		if (error)
+			return error;
+		start = tmp;
+		if (prev && start < prev->vm_end)
+			start = prev->vm_end;
+		if (start >= end)
+			break;
+		if (prev)
+			vma = prev->vm_next;
+		else	/* madvise_remove dropped mmap_lock */
+			vma = find_vma(mm, start);
+	}
+
+	return unmapped_error;
+}
+
 /*
  * The madvise(2) system call.
  *
@@ -1070,10 +1133,8 @@ process_madvise_behavior_valid(int behavior)
  */
 int do_madvise(struct mm_struct *mm, unsigned long start, size_t len_in, int behavior)
 {
-	unsigned long end, tmp;
-	struct vm_area_struct *vma, *prev;
-	int unmapped_error = 0;
-	int error = -EINVAL;
+	unsigned long end;
+	int error;
 	int write;
 	size_t len;
 	struct blk_plug plug;
@@ -1081,23 +1142,22 @@ int do_madvise(struct mm_struct *mm, unsigned long start, size_t len_in, int beh
 	start = untagged_addr(start);
 
 	if (!madvise_behavior_valid(behavior))
-		return error;
+		return -EINVAL;
 
 	if (!PAGE_ALIGNED(start))
-		return error;
+		return -EINVAL;
 	len = PAGE_ALIGN(len_in);
 
 	/* Check to see whether len was rounded up from small -ve to zero */
 	if (len_in && !len)
-		return error;
+		return -EINVAL;
 
 	end = start + len;
 	if (end < start)
-		return error;
+		return -EINVAL;
 
-	error = 0;
 	if (end == start)
-		return error;
+		return 0;
 
 #ifdef CONFIG_MEMORY_FAILURE
 	if (behavior == MADV_HWPOISON || behavior == MADV_SOFT_OFFLINE)
@@ -1112,51 +1172,9 @@ int do_madvise(struct mm_struct *mm, unsigned long start, size_t len_in, int beh
 		mmap_read_lock(mm);
 	}
 
-	/*
-	 * If the interval [start,end) covers some unmapped address
-	 * ranges, just ignore them, but return -ENOMEM at the end.
-	 * - different from the way of handling in mlock etc.
-	 */
-	vma = find_vma_prev(mm, start, &prev);
-	if (vma && start > vma->vm_start)
-		prev = vma;
-
 	blk_start_plug(&plug);
-	for (;;) {
-		/* Still start < end. */
-		error = -ENOMEM;
-		if (!vma)
-			goto out;
-
-		/* Here start < (end|vma->vm_end). */
-		if (start < vma->vm_start) {
-			unmapped_error = -ENOMEM;
-			start = vma->vm_start;
-			if (start >= end)
-				goto out;
-		}
-
-		/* Here vma->vm_start <= start < (end|vma->vm_end) */
-		tmp = vma->vm_end;
-		if (end < tmp)
-			tmp = end;
-
-		/* Here vma->vm_start <= start < tmp <= (end|vma->vm_end). */
-		error = madvise_vma(vma, &prev, start, tmp, behavior);
-		if (error)
-			goto out;
-		start = tmp;
-		if (prev && start < prev->vm_end)
-			start = prev->vm_end;
-		error = unmapped_error;
-		if (start >= end)
-			goto out;
-		if (prev)
-			vma = prev->vm_next;
-		else	/* madvise_remove dropped mmap_lock */
-			vma = find_vma(mm, start);
-	}
-out:
+	error = madvise_walk_vmas(mm, start, end, behavior,
+			madvise_vma_behavior);
 	blk_finish_plug(&plug);
 	if (write)
 		mmap_write_unlock(mm);
-- 
GitLab


From 5be683755fc0e938e92045f6e55cf049f04f88d6 Mon Sep 17 00:00:00 2001
From: Colin Cross <ccross@google.com>
Date: Fri, 14 Jan 2022 14:05:59 -0800
Subject: [PATCH 2784/4878] UPSTREAM: mm: add a field to store names for
 private anonymous memory

In many userspace applications, and especially in VM based applications
like Android uses heavily, there are multiple different allocators in
use.  At a minimum there is libc malloc and the stack, and in many cases
there are libc malloc, the stack, direct syscalls to mmap anonymous
memory, and multiple VM heaps (one for small objects, one for big
objects, etc.).  Each of these layers usually has its own tools to
inspect its usage; malloc by compiling a debug version, the VM through
heap inspection tools, and for direct syscalls there is usually no way
to track them.

On Android we heavily use a set of tools that use an extended version of
the logic covered in Documentation/vm/pagemap.txt to walk all pages
mapped in userspace and slice their usage by process, shared (COW) vs.
unique mappings, backing, etc.  This can account for real physical
memory usage even in cases like fork without exec (which Android uses
heavily to share as many private COW pages as possible between
processes), Kernel SamePage Merging, and clean zero pages.  It produces
a measurement of the pages that only exist in that process (USS, for
unique), and a measurement of the physical memory usage of that process
with the cost of shared pages being evenly split between processes that
share them (PSS).

If all anonymous memory is indistinguishable then figuring out the real
physical memory usage (PSS) of each heap requires either a pagemap
walking tool that can understand the heap debugging of every layer, or
for every layer's heap debugging tools to implement the pagemap walking
logic, in which case it is hard to get a consistent view of memory
across the whole system.

Tracking the information in userspace leads to all sorts of problems.
It either needs to be stored inside the process, which means every
process has to have an API to export its current heap information upon
request, or it has to be stored externally in a filesystem that somebody
needs to clean up on crashes.  It needs to be readable while the process
is still running, so it has to have some sort of synchronization with
every layer of userspace.  Efficiently tracking the ranges requires
reimplementing something like the kernel vma trees, and linking to it
from every layer of userspace.  It requires more memory, more syscalls,
more runtime cost, and more complexity to separately track regions that
the kernel is already tracking.

This patch adds a field to /proc/pid/maps and /proc/pid/smaps to show a
userspace-provided name for anonymous vmas.  The names of named
anonymous vmas are shown in /proc/pid/maps and /proc/pid/smaps as
[anon:<name>].

Userspace can set the name for a region of memory by calling

   prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, (unsigned long)name)

Setting the name to NULL clears it.  The name length limit is 80 bytes
including NUL-terminator and is checked to contain only printable ascii
characters (including space), except '[',']','\','$' and '`'.

Ascii strings are being used to have a descriptive identifiers for vmas,
which can be understood by the users reading /proc/pid/maps or
/proc/pid/smaps.  Names can be standardized for a given system and they
can include some variable parts such as the name of the allocator or a
library, tid of the thread using it, etc.

The name is stored in a pointer in the shared union in vm_area_struct
that points to a null terminated string.  Anonymous vmas with the same
name (equivalent strings) and are otherwise mergeable will be merged.
The name pointers are not shared between vmas even if they contain the
same name.  The name pointer is stored in a union with fields that are
only used on file-backed mappings, so it does not increase memory usage.

CONFIG_ANON_VMA_NAME kernel configuration is introduced to enable this
feature.  It keeps the feature disabled by default to prevent any
additional memory overhead and to avoid confusing procfs parsers on
systems which are not ready to support named anonymous vmas.

The patch is based on the original patch developed by Colin Cross, more
specifically on its latest version [1] posted upstream by Sumit Semwal.
It used a userspace pointer to store vma names.  In that design, name
pointers could be shared between vmas.  However during the last
upstreaming attempt, Kees Cook raised concerns [2] about this approach
and suggested to copy the name into kernel memory space, perform
validity checks [3] and store as a string referenced from
vm_area_struct.

One big concern is about fork() performance which would need to strdup
anonymous vma names.  Dave Hansen suggested experimenting with
worst-case scenario of forking a process with 64k vmas having longest
possible names [4].  I ran this experiment on an ARM64 Android device
and recorded a worst-case regression of almost 40% when forking such a
process.

This regression is addressed in the followup patch which replaces the
pointer to a name with a refcounted structure that allows sharing the
name pointer between vmas of the same name.  Instead of duplicating the
string during fork() or when splitting a vma it increments the refcount.

[1] https://lore.kernel.org/linux-mm/20200901161459.11772-4-sumit.semwal@linaro.org/
[2] https://lore.kernel.org/linux-mm/202009031031.D32EF57ED@keescook/
[3] https://lore.kernel.org/linux-mm/202009031022.3834F692@keescook/
[4] https://lore.kernel.org/linux-mm/5d0358ab-8c47-2f5f-8e43-23b89d6a8e95@intel.com/

Changes for prctl(2) manual page (in the options section):

PR_SET_VMA
	Sets an attribute specified in arg2 for virtual memory areas
	starting from the address specified in arg3 and spanning the
	size specified	in arg4. arg5 specifies the value of the attribute
	to be set. Note that assigning an attribute to a virtual memory
	area might prevent it from being merged with adjacent virtual
	memory areas due to the difference in that attribute's value.

	Currently, arg2 must be one of:

	PR_SET_VMA_ANON_NAME
		Set a name for anonymous virtual memory areas. arg5 should
		be a pointer to a null-terminated string containing the
		name. The name length including null byte cannot exceed
		80 bytes. If arg5 is NULL, the name of the appropriate
		anonymous virtual memory areas will be reset. The name
		can contain only printable ascii characters (including
                space), except '[',']','\','$' and '`'.

                This feature is available only if the kernel is built with
                the CONFIG_ANON_VMA_NAME option enabled.

[surenb@google.com: docs: proc.rst: /proc/PID/maps: fix malformed table]
  Link: https://lkml.kernel.org/r/20211123185928.2513763-1-surenb@google.com
[surenb: rebased over v5.15-rc6, replaced userpointer with a kernel copy,
 added input sanitization and CONFIG_ANON_VMA_NAME config. The bulk of the
 work here was done by Colin Cross, therefore, with his permission, keeping
 him as the author]

Link: https://lkml.kernel.org/r/20211019215511.3771969-2-surenb@google.com
Signed-off-by: Colin Cross <ccross@google.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Glauber <jan.glauber@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Landley <rob@landley.net>
Cc: "Serge E. Hallyn" <serge.hallyn@ubuntu.com>
Cc: Shaohua Li <shli@fusionio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 9a10064f5625d5572c3626c1516e0bebc6c9fe9b)

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I53d56d551a7d62f75341304751814294b447c04e
---
 Documentation/filesystems/proc.rst |   6 +-
 fs/proc/task_mmu.c                 |  12 ++-
 fs/userfaultfd.c                   |   7 +-
 include/linux/mm.h                 |  18 +++-
 include/linux/mm_types.h           |  64 +++++++++++++-
 include/uapi/linux/prctl.h         |   3 +
 kernel/fork.c                      |   2 +
 kernel/sys.c                       |  63 ++++++++++++++
 mm/Kconfig                         |  14 ++++
 mm/madvise.c                       | 129 ++++++++++++++++++++++++++++-
 mm/mempolicy.c                     |   3 +-
 mm/mlock.c                         |   2 +-
 mm/mmap.c                          |  37 +++++----
 mm/mprotect.c                      |   2 +-
 14 files changed, 326 insertions(+), 36 deletions(-)

diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index 1d562f3b8ea80..e1bef77aaf994 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -424,12 +424,14 @@ with the memory region, as the case would be with BSS (uninitialized data).
 The "pathname" shows the name associated file for this mapping.  If the mapping
 is not associated with a file:
 
- =======                    ====================================
+ =============              ====================================
  [heap]                     the heap of the program
  [stack]                    the stack of the main process
  [vdso]                     the "virtual dynamic shared object",
                             the kernel system call handler
- =======                    ====================================
+ [anon:<name>]              an anonymous mapping that has been
+                            named by userspace
+ =============              ====================================
 
  or if empty, the mapping is anonymous.
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index a0143b6562906..290c943f3a6ac 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -308,6 +308,8 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 
 	name = arch_vma_name(vma);
 	if (!name) {
+		const char *anon_name;
+
 		if (!mm) {
 			name = "[vdso]";
 			goto done;
@@ -319,8 +321,16 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 			goto done;
 		}
 
-		if (is_stack(vma))
+		if (is_stack(vma)) {
 			name = "[stack]";
+			goto done;
+		}
+
+		anon_name = vma_anon_name(vma);
+		if (anon_name) {
+			seq_pad(m, ' ');
+			seq_printf(m, "[anon:%s]", anon_name);
+		}
 	}
 
 done:
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index db05aae28f4bf..b924af281730b 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -879,7 +879,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 				 new_flags, vma->anon_vma,
 				 vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 NULL_VM_UFFD_CTX);
+				 NULL_VM_UFFD_CTX, vma_anon_name(vma));
 		if (prev)
 			vma = prev;
 		else
@@ -1436,7 +1436,8 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
 		prev = vma_merge(mm, prev, start, vma_end, new_flags,
 				 vma->anon_vma, vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 ((struct vm_userfaultfd_ctx){ ctx }));
+				 ((struct vm_userfaultfd_ctx){ ctx }),
+				 vma_anon_name(vma));
 		if (prev) {
 			vma = prev;
 			goto next;
@@ -1615,7 +1616,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
 		prev = vma_merge(mm, prev, start, vma_end, new_flags,
 				 vma->anon_vma, vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 NULL_VM_UFFD_CTX);
+				 NULL_VM_UFFD_CTX, vma_anon_name(vma));
 		if (prev) {
 			vma = prev;
 			goto next;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index d46ff82230a2b..f8ae933c9ed31 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2672,15 +2672,16 @@ extern struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *anon, struct file *file,
 	pgoff_t pgoff, struct mempolicy *mpol, struct vm_userfaultfd_ctx uff,
-	bool keep_locked);
+	const char *, bool keep_locked);
 
 static inline struct vm_area_struct *vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *anon, struct file *file,
-	pgoff_t off, struct mempolicy *pol, struct vm_userfaultfd_ctx uff)
+	pgoff_t off, struct mempolicy *pol, struct vm_userfaultfd_ctx uff,
+	const char *anon_name)
 {
 	return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off,
-			   pol, uff, false);
+			   pol, uff, anon_name, false);
 }
 
 extern struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *);
@@ -3394,5 +3395,16 @@ static inline int seal_check_future_write(int seals, struct vm_area_struct *vma)
 	return 0;
 }
 
+#ifdef CONFIG_ANON_VMA_NAME
+int madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
+			  unsigned long len_in, const char *name);
+#else
+static inline int
+madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
+		      unsigned long len_in, const char *name) {
+	return 0;
+}
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 6bdd4f2149811..7ffa59061ea54 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -339,11 +339,19 @@ struct vm_area_struct {
 	/*
 	 * For areas with an address space and backing store,
 	 * linkage into the address_space->i_mmap interval tree.
+	 *
+	 * For private anonymous mappings, a pointer to a null terminated string
+	 * containing the name given to the vma, or NULL if unnamed.
 	 */
-	struct {
-		struct rb_node rb;
-		unsigned long rb_subtree_last;
-	} shared;
+
+	union {
+		struct {
+			struct rb_node rb;
+			unsigned long rb_subtree_last;
+		} shared;
+		/* Serialized by mmap_sem. */
+		char *anon_name;
+	};
 
 	/*
 	 * A file's MAP_PRIVATE vma can be in both i_mmap tree and anon_vma
@@ -828,4 +836,52 @@ typedef struct {
 	unsigned long val;
 } swp_entry_t;
 
+#ifdef CONFIG_ANON_VMA_NAME
+/*
+ * mmap_lock should be read-locked when calling vma_anon_name() and while using
+ * the returned pointer.
+ */
+extern const char *vma_anon_name(struct vm_area_struct *vma);
+
+/*
+ * mmap_lock should be read-locked for orig_vma->vm_mm.
+ * mmap_lock should be write-locked for new_vma->vm_mm or new_vma should be
+ * isolated.
+ */
+extern void dup_vma_anon_name(struct vm_area_struct *orig_vma,
+			      struct vm_area_struct *new_vma);
+
+/*
+ * mmap_lock should be write-locked or vma should have been isolated under
+ * write-locked mmap_lock protection.
+ */
+extern void free_vma_anon_name(struct vm_area_struct *vma);
+
+/* mmap_lock should be read-locked */
+static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
+					 const char *name)
+{
+	const char *vma_name = vma_anon_name(vma);
+
+	/* either both NULL, or pointers to same string */
+	if (vma_name == name)
+		return true;
+
+	return name && vma_name && !strcmp(name, vma_name);
+}
+#else /* CONFIG_ANON_VMA_NAME */
+static inline const char *vma_anon_name(struct vm_area_struct *vma)
+{
+	return NULL;
+}
+static inline void dup_vma_anon_name(struct vm_area_struct *orig_vma,
+			      struct vm_area_struct *new_vma) {}
+static inline void free_vma_anon_name(struct vm_area_struct *vma) {}
+static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
+					 const char *name)
+{
+	return true;
+}
+#endif  /* CONFIG_ANON_VMA_NAME */
+
 #endif /* _LINUX_MM_TYPES_H */
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 2a725b631dca5..2f70791ff8e57 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -252,4 +252,7 @@ struct prctl_mm_map {
 #define PR_PAC_SET_ENABLED_KEYS		60
 #define PR_PAC_GET_ENABLED_KEYS		61
 
+#define PR_SET_VMA		0x53564d41
+# define PR_SET_VMA_ANON_NAME		0
+
 #endif /* _LINUX_PRCTL_H */
diff --git a/kernel/fork.c b/kernel/fork.c
index 1d3c008702f4b..9ae1189c666f4 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -371,12 +371,14 @@ struct vm_area_struct *vm_area_dup(struct vm_area_struct *orig)
 		*new = data_race(*orig);
 		INIT_VMA(new);
 		new->vm_next = new->vm_prev = NULL;
+		dup_vma_anon_name(orig, new);
 	}
 	return new;
 }
 
 void vm_area_free(struct vm_area_struct *vma)
 {
+	free_vma_anon_name(vma);
 	kmem_cache_free(vm_area_cachep, vma);
 }
 
diff --git a/kernel/sys.c b/kernel/sys.c
index 0c4b9d6407cba..59cce6bd2a0a6 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2281,6 +2281,66 @@ int __weak arch_prctl_spec_ctrl_set(struct task_struct *t, unsigned long which,
 
 #define PR_IO_FLUSHER (PF_MEMALLOC_NOIO | PF_LOCAL_THROTTLE)
 
+#ifdef CONFIG_ANON_VMA_NAME
+
+#define ANON_VMA_NAME_MAX_LEN		80
+#define ANON_VMA_NAME_INVALID_CHARS	"\\`$[]"
+
+static inline bool is_valid_name_char(char ch)
+{
+	/* printable ascii characters, excluding ANON_VMA_NAME_INVALID_CHARS */
+	return ch > 0x1f && ch < 0x7f &&
+		!strchr(ANON_VMA_NAME_INVALID_CHARS, ch);
+}
+
+static int prctl_set_vma(unsigned long opt, unsigned long addr,
+			 unsigned long size, unsigned long arg)
+{
+	struct mm_struct *mm = current->mm;
+	const char __user *uname;
+	char *name, *pch;
+	int error;
+
+	switch (opt) {
+	case PR_SET_VMA_ANON_NAME:
+		uname = (const char __user *)arg;
+		if (uname) {
+			name = strndup_user(uname, ANON_VMA_NAME_MAX_LEN);
+
+			if (IS_ERR(name))
+				return PTR_ERR(name);
+
+			for (pch = name; *pch != '\0'; pch++) {
+				if (!is_valid_name_char(*pch)) {
+					kfree(name);
+					return -EINVAL;
+				}
+			}
+		} else {
+			/* Reset the name */
+			name = NULL;
+		}
+
+		mmap_write_lock(mm);
+		error = madvise_set_anon_name(mm, addr, size, name);
+		mmap_write_unlock(mm);
+		kfree(name);
+		break;
+	default:
+		error = -EINVAL;
+	}
+
+	return error;
+}
+
+#else /* CONFIG_ANON_VMA_NAME */
+static int prctl_set_vma(unsigned long opt, unsigned long start,
+			 unsigned long size, unsigned long arg)
+{
+	return -EINVAL;
+}
+#endif /* CONFIG_ANON_VMA_NAME */
+
 SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
 		unsigned long, arg4, unsigned long, arg5)
 {
@@ -2541,6 +2601,9 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
 
 		error = (current->flags & PR_IO_FLUSHER) == PR_IO_FLUSHER;
 		break;
+	case PR_SET_VMA:
+		error = prctl_set_vma(arg2, arg3, arg4, arg5);
+		break;
 	default:
 		error = -EINVAL;
 		break;
diff --git a/mm/Kconfig b/mm/Kconfig
index 4fa83145139a2..7853ccc1c9359 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -893,4 +893,18 @@ config MAPPING_DIRTY_HELPERS
 config ARCH_HAS_IOREMAP_PHYS_HOOKS
 	bool
 
+config ANON_VMA_NAME
+	bool "Anonymous VMA name support"
+	depends on PROC_FS && ADVISE_SYSCALLS && MMU
+
+	help
+	  Allow naming anonymous virtual memory areas.
+
+	  This feature allows assigning names to virtual memory areas. Assigned
+	  names can be later retrieved from /proc/pid/maps and /proc/pid/smaps
+	  and help identifying individual anonymous memory areas.
+	  Assigning a name to anonymous virtual memory area might prevent that
+	  area from being merged with adjacent virtual memory areas due to the
+	  difference in their name.
+
 endmenu
diff --git a/mm/madvise.c b/mm/madvise.c
index 5e011fc7a98b7..51a852efe37d2 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -18,6 +18,7 @@
 #include <linux/fadvise.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/string.h>
 #include <linux/uio.h>
 #include <linux/ksm.h>
 #include <linux/fs.h>
@@ -60,19 +61,84 @@ static int madvise_need_mmap_write(int behavior)
 	}
 }
 
+#ifdef CONFIG_ANON_VMA_NAME
+static inline bool has_vma_anon_name(struct vm_area_struct *vma)
+{
+	return !vma->vm_file && vma->anon_name;
+}
+
+const char *vma_anon_name(struct vm_area_struct *vma)
+{
+	if (!has_vma_anon_name(vma))
+		return NULL;
+
+	mmap_assert_locked(vma->vm_mm);
+
+	return vma->anon_name;
+}
+
+void dup_vma_anon_name(struct vm_area_struct *orig_vma,
+		       struct vm_area_struct *new_vma)
+{
+	if (!has_vma_anon_name(orig_vma))
+		return;
+
+	new_vma->anon_name = kstrdup(orig_vma->anon_name, GFP_KERNEL);
+}
+
+void free_vma_anon_name(struct vm_area_struct *vma)
+{
+	if (!has_vma_anon_name(vma))
+		return;
+
+	kfree(vma->anon_name);
+	vma->anon_name = NULL;
+}
+
+/* mmap_lock should be write-locked */
+static int replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
+{
+	if (!name) {
+		free_vma_anon_name(vma);
+		return 0;
+	}
+
+	if (vma->anon_name) {
+		/* Same name, nothing to do here */
+		if (!strcmp(name, vma->anon_name))
+			return 0;
+
+		free_vma_anon_name(vma);
+	}
+	vma->anon_name = kstrdup(name, GFP_KERNEL);
+	if (!vma->anon_name)
+		return -ENOMEM;
+
+	return 0;
+}
+#else /* CONFIG_ANON_VMA_NAME */
+static int replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
+{
+	if (name)
+		return -EINVAL;
+
+	return 0;
+}
+#endif /* CONFIG_ANON_VMA_NAME */
 /*
  * Update the vm_flags on region of a vma, splitting it or merging it as
  * necessary.  Must be called with mmap_sem held for writing;
  */
 static int madvise_update_vma(struct vm_area_struct *vma,
 			      struct vm_area_struct **prev, unsigned long start,
-			      unsigned long end, unsigned long new_flags)
+			      unsigned long end, unsigned long new_flags,
+			      const char *name)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	int error;
 	pgoff_t pgoff;
 
-	if (new_flags == vma->vm_flags) {
+	if (new_flags == vma->vm_flags && is_same_vma_anon_name(vma, name)) {
 		*prev = vma;
 		return 0;
 	}
@@ -80,7 +146,7 @@ static int madvise_update_vma(struct vm_area_struct *vma,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
 			  vma->vm_file, pgoff, vma_policy(vma),
-			  vma->vm_userfaultfd_ctx);
+			  vma->vm_userfaultfd_ctx, name);
 	if (*prev) {
 		vma = *prev;
 		goto success;
@@ -111,6 +177,11 @@ success:
 	vm_write_begin(vma);
 	WRITE_ONCE(vma->vm_flags, new_flags);
 	vm_write_end(vma);
+	if (!vma->vm_file) {
+		error = replace_vma_anon_name(vma, name);
+		if (error)
+			return error;
+	}
 
 	return 0;
 }
@@ -883,7 +954,8 @@ static int madvise_vma_behavior(struct vm_area_struct *vma,
 		break;
 	}
 
-	error = madvise_update_vma(vma, prev, start, end, new_flags);
+	error = madvise_update_vma(vma, prev, start, end, new_flags,
+				   vma_anon_name(vma));
 
 out:
 	/*
@@ -1065,6 +1137,55 @@ int madvise_walk_vmas(struct mm_struct *mm, unsigned long start,
 	return unmapped_error;
 }
 
+#ifdef CONFIG_ANON_VMA_NAME
+static int madvise_vma_anon_name(struct vm_area_struct *vma,
+				 struct vm_area_struct **prev,
+				 unsigned long start, unsigned long end,
+				 unsigned long name)
+{
+	int error;
+
+	/* Only anonymous mappings can be named */
+	if (vma->vm_file)
+		return -EBADF;
+
+	error = madvise_update_vma(vma, prev, start, end, vma->vm_flags,
+				   (const char *)name);
+
+	/*
+	 * madvise() returns EAGAIN if kernel resources, such as
+	 * slab, are temporarily unavailable.
+	 */
+	if (error == -ENOMEM)
+		error = -EAGAIN;
+	return error;
+}
+
+int madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
+			  unsigned long len_in, const char *name)
+{
+	unsigned long end;
+	unsigned long len;
+
+	if (start & ~PAGE_MASK)
+		return -EINVAL;
+	len = (len_in + ~PAGE_MASK) & PAGE_MASK;
+
+	/* Check to see whether len was rounded up from small -ve to zero */
+	if (len_in && !len)
+		return -EINVAL;
+
+	end = start + len;
+	if (end < start)
+		return -EINVAL;
+
+	if (end == start)
+		return 0;
+
+	return madvise_walk_vmas(mm, start, end, (unsigned long)name,
+				 madvise_vma_anon_name);
+}
+#endif /* CONFIG_ANON_VMA_NAME */
 /*
  * The madvise(2) system call.
  *
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 9b5842c9082f4..51c27b8ba1dc5 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -841,7 +841,8 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 			((vmstart - vma->vm_start) >> PAGE_SHIFT);
 		prev = vma_merge(mm, prev, vmstart, vmend, vma->vm_flags,
 				 vma->anon_vma, vma->vm_file, pgoff,
-				 new_pol, vma->vm_userfaultfd_ctx);
+				 new_pol, vma->vm_userfaultfd_ctx,
+				 vma_anon_name(vma));
 		if (prev) {
 			vma = prev;
 			next = vma->vm_next;
diff --git a/mm/mlock.c b/mm/mlock.c
index 40f1162aa0560..a90b46d863346 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -550,7 +550,7 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
 			  vma->vm_file, pgoff, vma_policy(vma),
-			  vma->vm_userfaultfd_ctx);
+			  vma->vm_userfaultfd_ctx, vma_anon_name(vma));
 	if (*prev) {
 		vma = *prev;
 		goto success;
diff --git a/mm/mmap.c b/mm/mmap.c
index c101e8f9a2b14..22149ad1d4250 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1082,7 +1082,8 @@ again:
  */
 static inline int is_mergeable_vma(struct vm_area_struct *vma,
 				struct file *file, unsigned long vm_flags,
-				struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+				struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+				const char *anon_name)
 {
 	/*
 	 * VM_SOFTDIRTY should not prevent from VMA merging, if we
@@ -1100,6 +1101,8 @@ static inline int is_mergeable_vma(struct vm_area_struct *vma,
 		return 0;
 	if (!is_mergeable_vm_userfaultfd_ctx(vma, vm_userfaultfd_ctx))
 		return 0;
+	if (!is_same_vma_anon_name(vma, anon_name))
+		return 0;
 	return 1;
 }
 
@@ -1132,9 +1135,10 @@ static int
 can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
 		     struct anon_vma *anon_vma, struct file *file,
 		     pgoff_t vm_pgoff,
-		     struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+		     struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+		     const char *anon_name)
 {
-	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
+	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		if (vma->vm_pgoff == vm_pgoff)
 			return 1;
@@ -1153,9 +1157,10 @@ static int
 can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 		    struct anon_vma *anon_vma, struct file *file,
 		    pgoff_t vm_pgoff,
-		    struct vm_userfaultfd_ctx vm_userfaultfd_ctx)
+		    struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
+		    const char *anon_name)
 {
-	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx) &&
+	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
 		pgoff_t vm_pglen;
 		vm_pglen = vma_pages(vma);
@@ -1166,9 +1171,9 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 }
 
 /*
- * Given a mapping request (addr,end,vm_flags,file,pgoff), figure out
- * whether that can be merged with its predecessor or its successor.
- * Or both (it neatly fills a hole).
+ * Given a mapping request (addr,end,vm_flags,file,pgoff,anon_name),
+ * figure out whether that can be merged with its predecessor or its
+ * successor.  Or both (it neatly fills a hole).
  *
  * In most cases - when called for mmap, brk or mremap - [addr,end) is
  * certain not to be mapped by the time vma_merge is called; but when
@@ -1214,7 +1219,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			struct anon_vma *anon_vma, struct file *file,
 			pgoff_t pgoff, struct mempolicy *policy,
 			struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-			bool keep_locked)
+			const char *anon_name, bool keep_locked)
 {
 	pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
 	struct vm_area_struct *area, *next;
@@ -1244,7 +1249,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			mpol_equal(vma_policy(prev), policy) &&
 			can_vma_merge_after(prev, vm_flags,
 					    anon_vma, file, pgoff,
-					    vm_userfaultfd_ctx)) {
+					    vm_userfaultfd_ctx, anon_name)) {
 		/*
 		 * OK, it can.  Can we now merge in the successor as well?
 		 */
@@ -1253,7 +1258,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 				can_vma_merge_before(next, vm_flags,
 						     anon_vma, file,
 						     pgoff+pglen,
-						     vm_userfaultfd_ctx) &&
+						     vm_userfaultfd_ctx, anon_name) &&
 				is_mergeable_anon_vma(prev->anon_vma,
 						      next->anon_vma, NULL)) {
 							/* cases 1, 6 */
@@ -1277,7 +1282,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			mpol_equal(policy, vma_policy(next)) &&
 			can_vma_merge_before(next, vm_flags,
 					     anon_vma, file, pgoff+pglen,
-					     vm_userfaultfd_ctx)) {
+					     vm_userfaultfd_ctx, anon_name)) {
 		if (prev && addr < prev->vm_end)	/* case 4 */
 			err = __vma_adjust(prev, prev->vm_start,
 					 addr, prev->vm_pgoff, NULL, next,
@@ -1823,7 +1828,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 	 * Can we just expand an old mapping?
 	 */
 	vma = vma_merge(mm, prev, addr, addr + len, vm_flags,
-			NULL, file, pgoff, NULL, NULL_VM_UFFD_CTX);
+			NULL, file, pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
 	if (vma)
 		goto out;
 
@@ -1882,7 +1887,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
 		 */
 		if (unlikely(vm_flags != vma->vm_flags && prev)) {
 			merge = vma_merge(mm, prev, vma->vm_start, vma->vm_end, vma->vm_flags,
-				NULL, vma->vm_file, vma->vm_pgoff, NULL, NULL_VM_UFFD_CTX);
+				NULL, vma->vm_file, vma->vm_pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
 			if (merge) {
 				/* ->mmap() can change vma->vm_file and fput the original file. So
 				 * fput the vma->vm_file here or we would add an extra fput for file
@@ -3193,7 +3198,7 @@ static int do_brk_flags(unsigned long addr, unsigned long len, unsigned long fla
 
 	/* Can we just expand an old private anonymous mapping? */
 	vma = vma_merge(mm, prev, addr, addr + len, flags,
-			NULL, NULL, pgoff, NULL, NULL_VM_UFFD_CTX);
+			NULL, NULL, pgoff, NULL, NULL_VM_UFFD_CTX, NULL);
 	if (vma)
 		goto out;
 
@@ -3404,7 +3409,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	new_vma = __vma_merge(mm, prev, addr, addr + len, vma->vm_flags,
 			      vma->anon_vma, vma->vm_file, pgoff,
 			      vma_policy(vma), vma->vm_userfaultfd_ctx,
-			      true);
+			      vma_anon_name(vma), true);
 	if (new_vma) {
 		/*
 		 * Source vma may have been merged into new_vma
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 950facea5c631..0558afeb92c1c 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -454,7 +454,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*pprev = vma_merge(mm, *pprev, start, end, newflags,
 			   vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
-			   vma->vm_userfaultfd_ctx);
+			   vma->vm_userfaultfd_ctx, vma_anon_name(vma));
 	if (*pprev) {
 		vma = *pprev;
 		VM_WARN_ON((vma->vm_flags ^ newflags) & ~VM_SOFTDIRTY);
-- 
GitLab


From a145fd90ac3fe6a1b849d07a25723782ed2d45e2 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 14 Jan 2022 14:06:03 -0800
Subject: [PATCH 2785/4878] UPSTREAM: mm: add anonymous vma name refcounting

While forking a process with high number (64K) of named anonymous vmas
the overhead caused by strdup() is noticeable.  Experiments with ARM64
Android device show up to 40% performance regression when forking a
process with 64k unpopulated anonymous vmas using the max name lengths
vs the same process with the same number of anonymous vmas having no
name.

Introduce anon_vma_name refcounted structure to avoid the overhead of
copying vma names during fork() and when splitting named anonymous vmas.

When a vma is duplicated, instead of copying the name we increment the
refcount of this structure.  Multiple vmas can point to the same
anon_vma_name as long as they increment the refcount.  The name member
of anon_vma_name structure is assigned at structure allocation time and
is never changed.  If vma name changes then the refcount of the original
structure is dropped, a new anon_vma_name structure is allocated to hold
the new name and the vma pointer is updated to point to the new
structure.

With this approach the fork() performance regressions is reduced 3-4x
times and with usecases using more reasonable number of VMAs (a few
thousand) the regressions is not measurable.

Link: https://lkml.kernel.org/r/20211019215511.3771969-3-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Colin Cross <ccross@google.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jan Glauber <jan.glauber@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Landley <rob@landley.net>
Cc: "Serge E. Hallyn" <serge.hallyn@ubuntu.com>
Cc: Shaohua Li <shli@fusionio.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 78db3412833dc9c479cd17412035f216cfd01a29)

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I4b6d63b1aced3813ebb91479f4bcfd0d89e8fa29
---
 include/linux/mm_types.h |  9 ++++++++-
 mm/madvise.c             | 42 ++++++++++++++++++++++++++++++++++------
 2 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 7ffa59061ea54..e927d79395ebf 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -5,6 +5,7 @@
 #include <linux/mm_types_task.h>
 
 #include <linux/auxvec.h>
+#include <linux/kref.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/rbtree.h>
@@ -299,6 +300,12 @@ struct vm_userfaultfd_ctx {
 struct vm_userfaultfd_ctx {};
 #endif /* CONFIG_USERFAULTFD */
 
+struct anon_vma_name {
+	struct kref kref;
+	/* The name needs to be at the end because it is dynamically sized. */
+	char name[];
+};
+
 /*
  * This struct describes a virtual memory area. There is one of these
  * per VM-area/task. A VM area is any part of the process virtual memory
@@ -350,7 +357,7 @@ struct vm_area_struct {
 			unsigned long rb_subtree_last;
 		} shared;
 		/* Serialized by mmap_sem. */
-		char *anon_name;
+		struct anon_vma_name *anon_name;
 	};
 
 	/*
diff --git a/mm/madvise.c b/mm/madvise.c
index 51a852efe37d2..be644a986bc78 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -62,6 +62,29 @@ static int madvise_need_mmap_write(int behavior)
 }
 
 #ifdef CONFIG_ANON_VMA_NAME
+static struct anon_vma_name *anon_vma_name_alloc(const char *name)
+{
+	struct anon_vma_name *anon_name;
+	size_t count;
+
+	/* Add 1 for NUL terminator at the end of the anon_name->name */
+	count = strlen(name) + 1;
+	anon_name = kmalloc(struct_size(anon_name, name, count), GFP_KERNEL);
+	if (anon_name) {
+		kref_init(&anon_name->kref);
+		memcpy(anon_name->name, name, count);
+	}
+
+	return anon_name;
+}
+
+static void vma_anon_name_free(struct kref *kref)
+{
+	struct anon_vma_name *anon_name =
+			container_of(kref, struct anon_vma_name, kref);
+	kfree(anon_name);
+}
+
 static inline bool has_vma_anon_name(struct vm_area_struct *vma)
 {
 	return !vma->vm_file && vma->anon_name;
@@ -74,7 +97,7 @@ const char *vma_anon_name(struct vm_area_struct *vma)
 
 	mmap_assert_locked(vma->vm_mm);
 
-	return vma->anon_name;
+	return vma->anon_name->name;
 }
 
 void dup_vma_anon_name(struct vm_area_struct *orig_vma,
@@ -83,34 +106,41 @@ void dup_vma_anon_name(struct vm_area_struct *orig_vma,
 	if (!has_vma_anon_name(orig_vma))
 		return;
 
-	new_vma->anon_name = kstrdup(orig_vma->anon_name, GFP_KERNEL);
+	kref_get(&orig_vma->anon_name->kref);
+	new_vma->anon_name = orig_vma->anon_name;
 }
 
 void free_vma_anon_name(struct vm_area_struct *vma)
 {
+	struct anon_vma_name *anon_name;
+
 	if (!has_vma_anon_name(vma))
 		return;
 
-	kfree(vma->anon_name);
+	anon_name = vma->anon_name;
 	vma->anon_name = NULL;
+	kref_put(&anon_name->kref, vma_anon_name_free);
 }
 
 /* mmap_lock should be write-locked */
 static int replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
 {
+	const char *anon_name;
+
 	if (!name) {
 		free_vma_anon_name(vma);
 		return 0;
 	}
 
-	if (vma->anon_name) {
+	anon_name = vma_anon_name(vma);
+	if (anon_name) {
 		/* Same name, nothing to do here */
-		if (!strcmp(name, vma->anon_name))
+		if (!strcmp(name, anon_name))
 			return 0;
 
 		free_vma_anon_name(vma);
 	}
-	vma->anon_name = kstrdup(name, GFP_KERNEL);
+	vma->anon_name = anon_vma_name_alloc(name);
 	if (!vma->anon_name)
 		return -ENOMEM;
 
-- 
GitLab


From b5db68c850212564ac356877c77f918d71de64cd Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 14 Jan 2022 14:06:07 -0800
Subject: [PATCH 2786/4878] UPSTREAM: mm: move anon_vma declarations to
 linux/mm_inline.h

The patch to add anonymous vma names causes a build failure in some
configurations:

  include/linux/mm_types.h: In function 'is_same_vma_anon_name':
  include/linux/mm_types.h:924:37: error: implicit declaration of function 'strcmp' [-Werror=implicit-function-declaration]
    924 |         return name && vma_name && !strcmp(name, vma_name);
        |                                     ^~~~~~
  include/linux/mm_types.h:22:1: note: 'strcmp' is defined in header '<string.h>'; did you forget to '#include <string.h>'?

This should not really be part of linux/mm_types.h in the first place,
as that header is meant to only contain structure defintions and need a
minimum set of indirect includes itself.

While the header clearly includes more than it should at this point,
let's not make it worse by including string.h as well, which would pull
in the expensive (compile-speed wise) fortify-string logic.

Move the new functions into a separate header that only needs to be
included in a couple of locations.

Link: https://lkml.kernel.org/r/20211207125710.2503446-1-arnd@kernel.org
Fixes: "mm: add a field to store names for private anonymous memory"
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Colin Cross <ccross@google.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 17fca131cee21724ee953a17c185c14e9533af5b)

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I54719d7ea27d3cf53ef7245b2af88d2a2bc9bafe
---
 fs/proc/task_mmu.c        |  1 +
 fs/userfaultfd.c          |  1 +
 include/linux/mm_inline.h | 50 +++++++++++++++++++++++++++++++++++++++
 include/linux/mm_types.h  | 48 -------------------------------------
 kernel/fork.c             |  1 +
 mm/madvise.c              |  1 +
 mm/mmap.c                 |  1 +
 7 files changed, 55 insertions(+), 48 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 290c943f3a6ac..cb0486f7bb899 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/pagewalk.h>
 #include <linux/vmacache.h>
+#include <linux/mm_inline.h>
 #include <linux/hugetlb.h>
 #include <linux/huge_mm.h>
 #include <linux/mount.h>
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index b924af281730b..1c171cb26412e 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -15,6 +15,7 @@
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/mm.h>
+#include <linux/mm_inline.h>
 #include <linux/mmu_notifier.h>
 #include <linux/poll.h>
 #include <linux/slab.h>
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 8fc71e9d7bb07..589e828f8fa81 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -4,6 +4,7 @@
 
 #include <linux/huge_mm.h>
 #include <linux/swap.h>
+#include <linux/string.h>
 
 /**
  * page_is_file_lru - should the page be on a file LRU or anon LRU?
@@ -125,4 +126,53 @@ static __always_inline enum lru_list page_lru(struct page *page)
 	}
 	return lru;
 }
+
+#ifdef CONFIG_ANON_VMA_NAME
+/*
+ * mmap_lock should be read-locked when calling vma_anon_name() and while using
+ * the returned pointer.
+ */
+extern const char *vma_anon_name(struct vm_area_struct *vma);
+
+/*
+ * mmap_lock should be read-locked for orig_vma->vm_mm.
+ * mmap_lock should be write-locked for new_vma->vm_mm or new_vma should be
+ * isolated.
+ */
+extern void dup_vma_anon_name(struct vm_area_struct *orig_vma,
+			      struct vm_area_struct *new_vma);
+
+/*
+ * mmap_lock should be write-locked or vma should have been isolated under
+ * write-locked mmap_lock protection.
+ */
+extern void free_vma_anon_name(struct vm_area_struct *vma);
+
+/* mmap_lock should be read-locked */
+static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
+					 const char *name)
+{
+	const char *vma_name = vma_anon_name(vma);
+
+	/* either both NULL, or pointers to same string */
+	if (vma_name == name)
+		return true;
+
+	return name && vma_name && !strcmp(name, vma_name);
+}
+#else /* CONFIG_ANON_VMA_NAME */
+static inline const char *vma_anon_name(struct vm_area_struct *vma)
+{
+	return NULL;
+}
+static inline void dup_vma_anon_name(struct vm_area_struct *orig_vma,
+			      struct vm_area_struct *new_vma) {}
+static inline void free_vma_anon_name(struct vm_area_struct *vma) {}
+static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
+					 const char *name)
+{
+	return true;
+}
+#endif  /* CONFIG_ANON_VMA_NAME */
+
 #endif
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index e927d79395ebf..04f1003826148 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -843,52 +843,4 @@ typedef struct {
 	unsigned long val;
 } swp_entry_t;
 
-#ifdef CONFIG_ANON_VMA_NAME
-/*
- * mmap_lock should be read-locked when calling vma_anon_name() and while using
- * the returned pointer.
- */
-extern const char *vma_anon_name(struct vm_area_struct *vma);
-
-/*
- * mmap_lock should be read-locked for orig_vma->vm_mm.
- * mmap_lock should be write-locked for new_vma->vm_mm or new_vma should be
- * isolated.
- */
-extern void dup_vma_anon_name(struct vm_area_struct *orig_vma,
-			      struct vm_area_struct *new_vma);
-
-/*
- * mmap_lock should be write-locked or vma should have been isolated under
- * write-locked mmap_lock protection.
- */
-extern void free_vma_anon_name(struct vm_area_struct *vma);
-
-/* mmap_lock should be read-locked */
-static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
-					 const char *name)
-{
-	const char *vma_name = vma_anon_name(vma);
-
-	/* either both NULL, or pointers to same string */
-	if (vma_name == name)
-		return true;
-
-	return name && vma_name && !strcmp(name, vma_name);
-}
-#else /* CONFIG_ANON_VMA_NAME */
-static inline const char *vma_anon_name(struct vm_area_struct *vma)
-{
-	return NULL;
-}
-static inline void dup_vma_anon_name(struct vm_area_struct *orig_vma,
-			      struct vm_area_struct *new_vma) {}
-static inline void free_vma_anon_name(struct vm_area_struct *vma) {}
-static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
-					 const char *name)
-{
-	return true;
-}
-#endif  /* CONFIG_ANON_VMA_NAME */
-
 #endif /* _LINUX_MM_TYPES_H */
diff --git a/kernel/fork.c b/kernel/fork.c
index 9ae1189c666f4..524bff4fa23ae 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -42,6 +42,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/mm_inline.h>
 #include <linux/vmacache.h>
 #include <linux/nsproxy.h>
 #include <linux/capability.h>
diff --git a/mm/madvise.c b/mm/madvise.c
index be644a986bc78..49a1ff53ccdb4 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -18,6 +18,7 @@
 #include <linux/fadvise.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/mm_inline.h>
 #include <linux/string.h>
 #include <linux/uio.h>
 #include <linux/ksm.h>
diff --git a/mm/mmap.c b/mm/mmap.c
index 22149ad1d4250..6233a6cd8df14 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/backing-dev.h>
 #include <linux/mm.h>
+#include <linux/mm_inline.h>
 #include <linux/vmacache.h>
 #include <linux/shm.h>
 #include <linux/mman.h>
-- 
GitLab


From d0bf79a102e52d8f80938f800a6716d17bf44d74 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Tue, 28 Dec 2021 12:10:09 -0800
Subject: [PATCH 2787/4878] ANDROID: GKI: enable CONFIG_ANON_VMA_NAME to
 support anonymous vma names

Enable CONFIG_ANON_VMA_NAME to support anonymous vma names.

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I38d547359fa799d48b286582997baeb5de50423f
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 98679be2ec203..18a66d54c2b2a 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -122,6 +122,7 @@ CONFIG_CMA_DEBUGFS=y
 CONFIG_CMA_SYSFS=y
 CONFIG_CMA_AREAS=16
 CONFIG_READ_ONLY_THP_FOR_FS=y
+CONFIG_ANON_VMA_NAME=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index ffc7586f25a6b..22d7961f02e9a 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -98,6 +98,7 @@ CONFIG_CMA_DEBUGFS=y
 CONFIG_CMA_SYSFS=y
 CONFIG_CMA_AREAS=16
 CONFIG_READ_ONLY_THP_FOR_FS=y
+CONFIG_ANON_VMA_NAME=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
-- 
GitLab


From 976a28295a01db618903406bd67cae53a4c29832 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 1 Oct 2021 13:05:47 -0700
Subject: [PATCH 2788/4878] ANDROID: Change anon vma name limit from 80 to 256

Android uses vma names of up to 256 characters. Change the max limit
for anonymous vma names to support Android legacy use cases.

Bug: 120441514
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ia0126ab3919281ce4d5c597a43a47de80eadf71a
---
 kernel/sys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index 59cce6bd2a0a6..ccfb6f05303e3 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2283,7 +2283,7 @@ int __weak arch_prctl_spec_ctrl_set(struct task_struct *t, unsigned long which,
 
 #ifdef CONFIG_ANON_VMA_NAME
 
-#define ANON_VMA_NAME_MAX_LEN		80
+#define ANON_VMA_NAME_MAX_LEN		256
 #define ANON_VMA_NAME_INVALID_CHARS	"\\`$[]"
 
 static inline bool is_valid_name_char(char ch)
-- 
GitLab


From 4e3406d26d2125b6cfd47000d5455d1d7c14d4cd Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 7 Jan 2022 20:08:45 -0800
Subject: [PATCH 2789/4878] f2fs: do not allow partial truncation on pinned
 file

If the pinned file has a hole by partial truncation, application that has
the block map will be broken.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 0c85d0f75bb7d..cd41879411b11 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1747,7 +1747,11 @@ static long f2fs_fallocate(struct file *file, int mode,
 		(mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
 		return -EOPNOTSUPP;
 
-	if (f2fs_compressed_file(inode) &&
+	/*
+	 * Pinned file should not support partial trucation since the block
+	 * can be used by applications.
+	 */
+	if ((f2fs_compressed_file(inode) || f2fs_is_pinned_file(inode)) &&
 		(mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
 			FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
 		return -EOPNOTSUPP;
-- 
GitLab


From 2fd546e0e3c4466e76513bf5c15937ded9367918 Mon Sep 17 00:00:00 2001
From: Alessio Balsini <balsini@google.com>
Date: Mon, 17 Jan 2022 15:09:46 +0000
Subject: [PATCH 2790/4878] ANDROID: fs/fuse: Backing move returns EXDEV if TO
 not backed

In a move operation, if the FROM file has a backing inode associated and
is handled in backing, it might happen that the TO file does not have a
backing path associated (yet), maybe because the FUSE daemon didn't have
the chance to traverse it.
Thus this special case would mistakenly trigger EBADF, while EXDEV is
more appropriate.

Bug: 202785178
Test: mv /storage/emulated/0/Android/data/<pkg>/file /sdcard/DCIM
Signed-off-by: Alessio Balsini <balsini@google.com>
Change-Id: I513c0e17c128ed9181a6b96fbf9f0b950e78be77
---
 fs/fuse/backing.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 3099d3c1c962b..6e24c55b8e9ae 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1272,7 +1272,13 @@ static int fuse_rename_backing_common(
 		return -EBADF;
 	get_fuse_backing_path(newent, &new_backing_path);
 	if (!new_backing_path.dentry) {
-		err = -EBADF;
+		/*
+		 * TODO A file being moved from a backing path to another
+		 * backing path which is not yet instrumented with FUSE-BPF.
+		 * This may be slow and should be substituted with something
+		 * more clever.
+		 */
+		err = -EXDEV;
 		goto put_old_path;
 	}
 	if (new_backing_path.mnt != old_backing_path.mnt) {
-- 
GitLab


From c4454e2978f4d1a9e82069259e242b47b0db5bb4 Mon Sep 17 00:00:00 2001
From: Tim Murray <timmurray@google.com>
Date: Fri, 7 Jan 2022 12:48:44 -0800
Subject: [PATCH 2791/4878] f2fs: move f2fs to use reader-unfair rwsems

f2fs rw_semaphores work better if writers can starve readers,
especially for the checkpoint thread, because writers are strictly
more important than reader threads. This prevents significant priority
inversion between low-priority readers that blocked while trying to
acquire the read lock and a second acquisition of the write lock that
might be blocking high priority work.

Signed-off-by: Tim Murray <timmurray@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c |  34 ++++-----
 fs/f2fs/compress.c   |   6 +-
 fs/f2fs/data.c       |  58 +++++++--------
 fs/f2fs/dir.c        |  12 +--
 fs/f2fs/f2fs.h       | 112 ++++++++++++++++++++++------
 fs/f2fs/file.c       | 170 +++++++++++++++++++++----------------------
 fs/f2fs/gc.c         |  46 ++++++------
 fs/f2fs/inline.c     |   4 +-
 fs/f2fs/namei.c      |  34 ++++-----
 fs/f2fs/node.c       |  84 ++++++++++-----------
 fs/f2fs/recovery.c   |   4 +-
 fs/f2fs/segment.c    |  44 +++++------
 fs/f2fs/super.c      |  58 +++++++--------
 fs/f2fs/sysfs.c      |   4 +-
 fs/f2fs/verity.c     |   4 +-
 fs/f2fs/xattr.c      |  12 +--
 16 files changed, 377 insertions(+), 309 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 5de8a1c8f2a45..c7a6d48e0da47 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -351,13 +351,13 @@ static int f2fs_write_meta_pages(struct address_space *mapping,
 		goto skip_write;
 
 	/* if locked failed, cp will flush dirty pages instead */
-	if (!down_write_trylock(&sbi->cp_global_sem))
+	if (!f2fs_down_write_trylock(&sbi->cp_global_sem))
 		goto skip_write;
 
 	trace_f2fs_writepages(mapping->host, wbc, META);
 	diff = nr_pages_to_write(sbi, META, wbc);
 	written = f2fs_sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO);
-	up_write(&sbi->cp_global_sem);
+	f2fs_up_write(&sbi->cp_global_sem);
 	wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff);
 	return 0;
 
@@ -1159,7 +1159,7 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	if (!is_journalled_quota(sbi))
 		return false;
 
-	if (!down_write_trylock(&sbi->quota_sem))
+	if (!f2fs_down_write_trylock(&sbi->quota_sem))
 		return true;
 	if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) {
 		ret = false;
@@ -1171,7 +1171,7 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	} else if (get_pages(sbi, F2FS_DIRTY_QDATA)) {
 		ret = true;
 	}
-	up_write(&sbi->quota_sem);
+	f2fs_up_write(&sbi->quota_sem);
 	return ret;
 }
 
@@ -1228,10 +1228,10 @@ retry_flush_dents:
 	 * POR: we should ensure that there are no dirty node pages
 	 * until finishing nat/sit flush. inode->i_blocks can be updated.
 	 */
-	down_write(&sbi->node_change);
+	f2fs_down_write(&sbi->node_change);
 
 	if (get_pages(sbi, F2FS_DIRTY_IMETA)) {
-		up_write(&sbi->node_change);
+		f2fs_up_write(&sbi->node_change);
 		f2fs_unlock_all(sbi);
 		err = f2fs_sync_inode_meta(sbi);
 		if (err)
@@ -1241,15 +1241,15 @@ retry_flush_dents:
 	}
 
 retry_flush_nodes:
-	down_write(&sbi->node_write);
+	f2fs_down_write(&sbi->node_write);
 
 	if (get_pages(sbi, F2FS_DIRTY_NODES)) {
-		up_write(&sbi->node_write);
+		f2fs_up_write(&sbi->node_write);
 		atomic_inc(&sbi->wb_sync_req[NODE]);
 		err = f2fs_sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO);
 		atomic_dec(&sbi->wb_sync_req[NODE]);
 		if (err) {
-			up_write(&sbi->node_change);
+			f2fs_up_write(&sbi->node_change);
 			f2fs_unlock_all(sbi);
 			return err;
 		}
@@ -1262,13 +1262,13 @@ retry_flush_nodes:
 	 * dirty node blocks and some checkpoint values by block allocation.
 	 */
 	__prepare_cp_block(sbi);
-	up_write(&sbi->node_change);
+	f2fs_up_write(&sbi->node_change);
 	return err;
 }
 
 static void unblock_operations(struct f2fs_sb_info *sbi)
 {
-	up_write(&sbi->node_write);
+	f2fs_up_write(&sbi->node_write);
 	f2fs_unlock_all(sbi);
 }
 
@@ -1612,7 +1612,7 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 		f2fs_warn(sbi, "Start checkpoint disabled!");
 	}
 	if (cpc->reason != CP_RESIZE)
-		down_write(&sbi->cp_global_sem);
+		f2fs_down_write(&sbi->cp_global_sem);
 
 	if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) &&
 		((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) ||
@@ -1693,7 +1693,7 @@ stop:
 	trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint");
 out:
 	if (cpc->reason != CP_RESIZE)
-		up_write(&sbi->cp_global_sem);
+		f2fs_up_write(&sbi->cp_global_sem);
 	return err;
 }
 
@@ -1741,9 +1741,9 @@ static int __write_checkpoint_sync(struct f2fs_sb_info *sbi)
 	struct cp_control cpc = { .reason = CP_SYNC, };
 	int err;
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	err = f2fs_write_checkpoint(sbi, &cpc);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 
 	return err;
 }
@@ -1831,9 +1831,9 @@ int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi)
 	if (!test_opt(sbi, MERGE_CHECKPOINT) || cpc.reason != CP_SYNC) {
 		int ret;
 
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 		ret = f2fs_write_checkpoint(sbi, &cpc);
-		up_write(&sbi->gc_lock);
+		f2fs_up_write(&sbi->gc_lock);
 
 		return ret;
 	}
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index f81e7a4a6a198..62105c1230648 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1266,7 +1266,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 		 * checkpoint. This can only happen to quota writes which can cause
 		 * the below discard race condition.
 		 */
-		down_read(&sbi->node_write);
+		f2fs_down_read(&sbi->node_write);
 	} else if (!f2fs_trylock_op(sbi)) {
 		goto out_free;
 	}
@@ -1383,7 +1383,7 @@ unlock_continue:
 
 	f2fs_put_dnode(&dn);
 	if (IS_NOQUOTA(inode))
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 	else
 		f2fs_unlock_op(sbi);
 
@@ -1409,7 +1409,7 @@ out_put_dnode:
 	f2fs_put_dnode(&dn);
 out_unlock_op:
 	if (IS_NOQUOTA(inode))
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 	else
 		f2fs_unlock_op(sbi);
 out_free:
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index a544cdd115919..811bea00d6176 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -601,7 +601,7 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
 	enum page_type btype = PAGE_TYPE_OF_BIO(type);
 	struct f2fs_bio_info *io = sbi->write_io[btype] + temp;
 
-	down_write(&io->io_rwsem);
+	f2fs_down_write(&io->io_rwsem);
 
 	/* change META to META_FLUSH in the checkpoint procedure */
 	if (type >= META_FLUSH) {
@@ -612,7 +612,7 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
 			io->fio.op_flags |= REQ_PREFLUSH | REQ_FUA;
 	}
 	__submit_merged_bio(io);
-	up_write(&io->io_rwsem);
+	f2fs_up_write(&io->io_rwsem);
 }
 
 static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
@@ -627,9 +627,9 @@ static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
 			enum page_type btype = PAGE_TYPE_OF_BIO(type);
 			struct f2fs_bio_info *io = sbi->write_io[btype] + temp;
 
-			down_read(&io->io_rwsem);
+			f2fs_down_read(&io->io_rwsem);
 			ret = __has_merged_page(io->bio, inode, page, ino);
-			up_read(&io->io_rwsem);
+			f2fs_up_read(&io->io_rwsem);
 		}
 		if (ret)
 			__f2fs_submit_merged_write(sbi, type, temp);
@@ -753,9 +753,9 @@ static void add_bio_entry(struct f2fs_sb_info *sbi, struct bio *bio,
 	if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE)
 		f2fs_bug_on(sbi, 1);
 
-	down_write(&io->bio_list_lock);
+	f2fs_down_write(&io->bio_list_lock);
 	list_add_tail(&be->list, &io->bio_list);
-	up_write(&io->bio_list_lock);
+	f2fs_up_write(&io->bio_list_lock);
 }
 
 static void del_bio_entry(struct bio_entry *be)
@@ -777,7 +777,7 @@ static int add_ipu_page(struct f2fs_io_info *fio, struct bio **bio,
 		struct list_head *head = &io->bio_list;
 		struct bio_entry *be;
 
-		down_write(&io->bio_list_lock);
+		f2fs_down_write(&io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (be->bio != *bio)
 				continue;
@@ -801,7 +801,7 @@ static int add_ipu_page(struct f2fs_io_info *fio, struct bio **bio,
 			__submit_bio(sbi, *bio, DATA);
 			break;
 		}
-		up_write(&io->bio_list_lock);
+		f2fs_up_write(&io->bio_list_lock);
 	}
 
 	if (ret) {
@@ -827,7 +827,7 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 		if (list_empty(head))
 			continue;
 
-		down_read(&io->bio_list_lock);
+		f2fs_down_read(&io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (target)
 				found = (target == be->bio);
@@ -837,14 +837,14 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 			if (found)
 				break;
 		}
-		up_read(&io->bio_list_lock);
+		f2fs_up_read(&io->bio_list_lock);
 
 		if (!found)
 			continue;
 
 		found = false;
 
-		down_write(&io->bio_list_lock);
+		f2fs_down_write(&io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (target)
 				found = (target == be->bio);
@@ -857,7 +857,7 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 				break;
 			}
 		}
-		up_write(&io->bio_list_lock);
+		f2fs_up_write(&io->bio_list_lock);
 	}
 
 	if (found)
@@ -917,7 +917,7 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
 
 	f2fs_bug_on(sbi, is_read_io(fio->op));
 
-	down_write(&io->io_rwsem);
+	f2fs_down_write(&io->io_rwsem);
 next:
 	if (fio->in_list) {
 		spin_lock(&io->io_lock);
@@ -984,7 +984,7 @@ out:
 	if (is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN) ||
 				!f2fs_is_checkpoint_ready(sbi))
 		__submit_merged_bio(io);
-	up_write(&io->io_rwsem);
+	f2fs_up_write(&io->io_rwsem);
 }
 
 static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
@@ -1394,9 +1394,9 @@ void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock)
 {
 	if (flag == F2FS_GET_BLOCK_PRE_AIO) {
 		if (lock)
-			down_read(&sbi->node_change);
+			f2fs_down_read(&sbi->node_change);
 		else
-			up_read(&sbi->node_change);
+			f2fs_up_read(&sbi->node_change);
 	} else {
 		if (lock)
 			f2fs_lock_op(sbi);
@@ -2772,13 +2772,13 @@ write:
 		 * the below discard race condition.
 		 */
 		if (IS_NOQUOTA(inode))
-			down_read(&sbi->node_write);
+			f2fs_down_read(&sbi->node_write);
 
 		fio.need_lock = LOCK_DONE;
 		err = f2fs_do_write_data_page(&fio);
 
 		if (IS_NOQUOTA(inode))
-			up_read(&sbi->node_write);
+			f2fs_up_read(&sbi->node_write);
 
 		goto done;
 	}
@@ -3236,14 +3236,14 @@ void f2fs_write_failed(struct inode *inode, loff_t to)
 
 	/* In the fs-verity case, f2fs_end_enable_verity() does the truncate */
 	if (to > i_size && !f2fs_verity_in_progress(inode)) {
-		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 		truncate_pagecache(inode, i_size);
 		f2fs_truncate_blocks(inode, i_size, true);
 
-		up_write(&F2FS_I(inode)->i_mmap_sem);
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	}
 }
 
@@ -3744,13 +3744,13 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 	unsigned int end_sec = secidx + blkcnt / blk_per_sec;
 	int ret = 0;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	set_inode_flag(inode, FI_ALIGNED_WRITE);
 
 	for (; secidx < end_sec; secidx++) {
-		down_write(&sbi->pin_sem);
+		f2fs_down_write(&sbi->pin_sem);
 
 		f2fs_lock_op(sbi);
 		f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
@@ -3764,7 +3764,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 
 			page = f2fs_get_lock_data_page(inode, blkidx, true);
 			if (IS_ERR(page)) {
-				up_write(&sbi->pin_sem);
+				f2fs_up_write(&sbi->pin_sem);
 				ret = PTR_ERR(page);
 				goto done;
 			}
@@ -3777,7 +3777,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 
 		ret = filemap_fdatawrite(inode->i_mapping);
 
-		up_write(&sbi->pin_sem);
+		f2fs_up_write(&sbi->pin_sem);
 
 		if (ret)
 			break;
@@ -3787,8 +3787,8 @@ done:
 	clear_inode_flag(inode, FI_DO_DEFRAG);
 	clear_inode_flag(inode, FI_ALIGNED_WRITE);
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	return ret;
 }
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 11bef1b7f2510..4316fbfc50349 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -768,7 +768,7 @@ add_dentry:
 	f2fs_wait_on_page_writeback(dentry_page, DATA, true, true);
 
 	if (inode) {
-		down_write(&F2FS_I(inode)->i_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_sem);
 		page = f2fs_init_inode_metadata(inode, dir, fname, NULL);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
@@ -795,7 +795,7 @@ add_dentry:
 	f2fs_update_parent_metadata(dir, inode, current_depth);
 fail:
 	if (inode)
-		up_write(&F2FS_I(inode)->i_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_sem);
 
 	f2fs_put_page(dentry_page, 1);
 
@@ -860,7 +860,7 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
 	struct page *page;
 	int err = 0;
 
-	down_write(&F2FS_I(inode)->i_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_sem);
 	page = f2fs_init_inode_metadata(inode, dir, NULL, NULL);
 	if (IS_ERR(page)) {
 		err = PTR_ERR(page);
@@ -871,7 +871,7 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
 	clear_inode_flag(inode, FI_NEW_INODE);
 	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 fail:
-	up_write(&F2FS_I(inode)->i_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_sem);
 	return err;
 }
 
@@ -879,7 +879,7 @@ void f2fs_drop_nlink(struct inode *dir, struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 
-	down_write(&F2FS_I(inode)->i_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_sem);
 
 	if (S_ISDIR(inode->i_mode))
 		f2fs_i_links_write(dir, false);
@@ -890,7 +890,7 @@ void f2fs_drop_nlink(struct inode *dir, struct inode *inode)
 		f2fs_i_links_write(inode, false);
 		f2fs_i_size_write(inode, 0);
 	}
-	up_write(&F2FS_I(inode)->i_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_sem);
 
 	if (inode->i_nlink == 0)
 		f2fs_add_orphan_inode(inode);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 8bdffa23bc248..4d4ad50d4ca2a 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -121,6 +121,18 @@ typedef u32 nid_t;
 
 #define COMPRESS_EXT_NUM		16
 
+/*
+ * An implementation of an rwsem that is explicitly unfair to readers. This
+ * prevents priority inversion when a low-priority reader acquires the read lock
+ * while sleeping on the write lock but the write lock is needed by
+ * higher-priority clients.
+ */
+
+struct f2fs_rwsem {
+        struct rw_semaphore internal_rwsem;
+        wait_queue_head_t read_waiters;
+};
+
 struct f2fs_mount_info {
 	unsigned int opt;
 	int write_io_size_bits;		/* Write IO size bits */
@@ -750,7 +762,7 @@ struct f2fs_inode_info {
 
 	/* Use below internally in f2fs*/
 	unsigned long flags[BITS_TO_LONGS(FI_MAX)];	/* use to pass per-file flags */
-	struct rw_semaphore i_sem;	/* protect fi info */
+	struct f2fs_rwsem i_sem;	/* protect fi info */
 	atomic_t dirty_pages;		/* # of dirty pages */
 	f2fs_hash_t chash;		/* hash value of given file name */
 	unsigned int clevel;		/* maximum level of given file name */
@@ -775,9 +787,9 @@ struct f2fs_inode_info {
 	struct extent_tree *extent_tree;	/* cached extent_tree entry */
 
 	/* avoid racing between foreground op and gc */
-	struct rw_semaphore i_gc_rwsem[2];
-	struct rw_semaphore i_mmap_sem;
-	struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
+	struct f2fs_rwsem i_gc_rwsem[2];
+	struct f2fs_rwsem i_mmap_sem;
+	struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
 
 	int i_extra_isize;		/* size of extra space located in i_addr */
 	kprojid_t i_projid;		/* id for project quota */
@@ -903,7 +915,7 @@ struct f2fs_nm_info {
 	/* NAT cache management */
 	struct radix_tree_root nat_root;/* root of the nat entry cache */
 	struct radix_tree_root nat_set_root;/* root of the nat set cache */
-	struct rw_semaphore nat_tree_lock;	/* protect nat entry tree */
+	struct f2fs_rwsem nat_tree_lock;	/* protect nat entry tree */
 	struct list_head nat_entries;	/* cached nat entry list (clean) */
 	spinlock_t nat_list_lock;	/* protect clean nat entry list */
 	unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
@@ -1016,7 +1028,7 @@ struct f2fs_sm_info {
 	struct dirty_seglist_info *dirty_info;	/* dirty segment information */
 	struct curseg_info *curseg_array;	/* active segment information */
 
-	struct rw_semaphore curseg_lock;	/* for preventing curseg change */
+	struct f2fs_rwsem curseg_lock;	/* for preventing curseg change */
 
 	block_t seg0_blkaddr;		/* block address of 0'th segment */
 	block_t main_blkaddr;		/* start block address of main area */
@@ -1200,11 +1212,11 @@ struct f2fs_bio_info {
 	struct bio *bio;		/* bios to merge */
 	sector_t last_block_in_bio;	/* last block number */
 	struct f2fs_io_info fio;	/* store buffered io info. */
-	struct rw_semaphore io_rwsem;	/* blocking op for bio */
+	struct f2fs_rwsem io_rwsem;	/* blocking op for bio */
 	spinlock_t io_lock;		/* serialize DATA/NODE IOs */
 	struct list_head io_list;	/* track fios */
 	struct list_head bio_list;	/* bio entry list head */
-	struct rw_semaphore bio_list_lock;	/* lock to protect bio entry list */
+	struct f2fs_rwsem bio_list_lock;	/* lock to protect bio entry list */
 };
 
 #define FDEV(i)				(sbi->devs[i])
@@ -1570,7 +1582,7 @@ struct f2fs_sb_info {
 	struct super_block *sb;			/* pointer to VFS super block */
 	struct proc_dir_entry *s_proc;		/* proc entry */
 	struct f2fs_super_block *raw_super;	/* raw super block pointer */
-	struct rw_semaphore sb_lock;		/* lock for raw super block */
+	struct f2fs_rwsem sb_lock;		/* lock for raw super block */
 	int valid_super_block;			/* valid super block no */
 	unsigned long s_flag;				/* flags for sbi */
 	struct mutex writepages;		/* mutex for writepages() */
@@ -1590,7 +1602,7 @@ struct f2fs_sb_info {
 	/* for bio operations */
 	struct f2fs_bio_info *write_io[NR_PAGE_TYPE];	/* for write bios */
 	/* keep migration IO order for LFS mode */
-	struct rw_semaphore io_order_lock;
+	struct f2fs_rwsem io_order_lock;
 	mempool_t *write_io_dummy;		/* Dummy pages */
 
 	/* for checkpoint */
@@ -1598,10 +1610,10 @@ struct f2fs_sb_info {
 	int cur_cp_pack;			/* remain current cp pack */
 	spinlock_t cp_lock;			/* for flag in ckpt */
 	struct inode *meta_inode;		/* cache meta blocks */
-	struct rw_semaphore cp_global_sem;	/* checkpoint procedure lock */
-	struct rw_semaphore cp_rwsem;		/* blocking FS operations */
-	struct rw_semaphore node_write;		/* locking node writes */
-	struct rw_semaphore node_change;	/* locking node change */
+	struct f2fs_rwsem cp_global_sem;	/* checkpoint procedure lock */
+	struct f2fs_rwsem cp_rwsem;		/* blocking FS operations */
+	struct f2fs_rwsem node_write;		/* locking node writes */
+	struct f2fs_rwsem node_change;	/* locking node change */
 	wait_queue_head_t cp_wait;
 	unsigned long last_time[MAX_TIME];	/* to store time in jiffies */
 	long interval_time[MAX_TIME];		/* to store thresholds */
@@ -1661,7 +1673,7 @@ struct f2fs_sb_info {
 	block_t unusable_block_count;		/* # of blocks saved by last cp */
 
 	unsigned int nquota_files;		/* # of quota sysfile */
-	struct rw_semaphore quota_sem;		/* blocking cp for flags */
+	struct f2fs_rwsem quota_sem;		/* blocking cp for flags */
 
 	/* # of pages, see count_type */
 	atomic_t nr_pages[NR_COUNT_TYPE];
@@ -1677,7 +1689,7 @@ struct f2fs_sb_info {
 	struct f2fs_mount_info mount_opt;	/* mount options */
 
 	/* for cleaning operations */
-	struct rw_semaphore gc_lock;		/*
+	struct f2fs_rwsem gc_lock;		/*
 						 * semaphore for GC, avoid
 						 * race between GC and GC or CP
 						 */
@@ -1697,7 +1709,7 @@ struct f2fs_sb_info {
 
 	/* threshold for gc trials on pinned files */
 	u64 gc_pin_file_threshold;
-	struct rw_semaphore pin_sem;
+	struct f2fs_rwsem pin_sem;
 
 	/* maximum # of trials to find a victim segment for SSR and GC */
 	unsigned int max_victim_search;
@@ -2091,9 +2103,65 @@ static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
 	spin_unlock_irqrestore(&sbi->cp_lock, flags);
 }
 
+static inline void init_f2fs_rwsem(struct f2fs_rwsem *sem)
+{
+	init_rwsem(&sem->internal_rwsem);
+	init_waitqueue_head(&sem->read_waiters);
+}
+
+static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
+{
+	return rwsem_is_locked(&sem->internal_rwsem);
+}
+
+static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
+{
+	return rwsem_is_contended(&sem->internal_rwsem);
+}
+
+static inline void f2fs_down_read(struct f2fs_rwsem *sem)
+{
+	wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
+}
+
+static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
+{
+	return down_read_trylock(&sem->internal_rwsem);
+}
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
+{
+	down_read_nested(&sem->internal_rwsem, subclass);
+}
+#else
+#define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
+#endif
+
+static inline void f2fs_up_read(struct f2fs_rwsem *sem)
+{
+	up_read(&sem->internal_rwsem);
+}
+
+static inline void f2fs_down_write(struct f2fs_rwsem *sem)
+{
+	down_write(&sem->internal_rwsem);
+}
+
+static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
+{
+	return down_write_trylock(&sem->internal_rwsem);
+}
+
+static inline void f2fs_up_write(struct f2fs_rwsem *sem)
+{
+	up_write(&sem->internal_rwsem);
+	wake_up_all(&sem->read_waiters);
+}
+
 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 {
-	down_read(&sbi->cp_rwsem);
+	f2fs_down_read(&sbi->cp_rwsem);
 }
 
 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
@@ -2102,22 +2170,22 @@ static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
 		f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
 		return 0;
 	}
-	return down_read_trylock(&sbi->cp_rwsem);
+	return f2fs_down_read_trylock(&sbi->cp_rwsem);
 }
 
 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
 {
-	up_read(&sbi->cp_rwsem);
+	f2fs_up_read(&sbi->cp_rwsem);
 }
 
 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
 {
-	down_write(&sbi->cp_rwsem);
+	f2fs_down_write(&sbi->cp_rwsem);
 }
 
 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
 {
-	up_write(&sbi->cp_rwsem);
+	f2fs_up_write(&sbi->cp_rwsem);
 }
 
 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index cd41879411b11..2affa9fa97529 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -40,9 +40,9 @@ static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
 	struct inode *inode = file_inode(vmf->vma->vm_file);
 	vm_fault_t ret;
 
-	down_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_mmap_sem);
 	ret = filemap_fault(vmf);
-	up_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_mmap_sem);
 
 	if (!ret)
 		f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO,
@@ -103,7 +103,7 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
 	f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
 
 	file_update_time(vmf->vma->vm_file);
-	down_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_mmap_sem);
 	lock_page(page);
 	if (unlikely(page->mapping != inode->i_mapping ||
 			page_offset(page) > i_size_read(inode) ||
@@ -161,7 +161,7 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
 
 	trace_f2fs_vm_page_mkwrite(page, DATA);
 out_sem:
-	up_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_mmap_sem);
 
 	sb_end_pagefault(inode->i_sb);
 err:
@@ -239,13 +239,13 @@ static void try_to_fix_pino(struct inode *inode)
 	struct f2fs_inode_info *fi = F2FS_I(inode);
 	nid_t pino;
 
-	down_write(&fi->i_sem);
+	f2fs_down_write(&fi->i_sem);
 	if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
 			get_parent_ino(inode, &pino)) {
 		f2fs_i_pino_write(inode, pino);
 		file_got_pino(inode);
 	}
-	up_write(&fi->i_sem);
+	f2fs_up_write(&fi->i_sem);
 }
 
 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
@@ -320,9 +320,9 @@ go_write:
 	 * Both of fdatasync() and fsync() are able to be recovered from
 	 * sudden-power-off.
 	 */
-	down_read(&F2FS_I(inode)->i_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_sem);
 	cp_reason = need_do_checkpoint(inode);
-	up_read(&F2FS_I(inode)->i_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_sem);
 
 	if (cp_reason) {
 		/* all the dirty node pages should be flushed for POR */
@@ -958,8 +958,8 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 				return err;
 		}
 
-		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 		truncate_setsize(inode, attr->ia_size);
 
@@ -969,8 +969,8 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 		 * do not trim all blocks after i_size if target size is
 		 * larger than i_size.
 		 */
-		up_write(&F2FS_I(inode)->i_mmap_sem);
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		if (err)
 			return err;
 
@@ -1110,8 +1110,8 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 			blk_start = (loff_t)pg_start << PAGE_SHIFT;
 			blk_end = (loff_t)pg_end << PAGE_SHIFT;
 
-			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-			down_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 			truncate_pagecache_range(inode, blk_start, blk_end - 1);
 
@@ -1119,8 +1119,8 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 			ret = f2fs_truncate_hole(inode, pg_start, pg_end);
 			f2fs_unlock_op(sbi);
 
-			up_write(&F2FS_I(inode)->i_mmap_sem);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		}
 	}
 
@@ -1353,8 +1353,8 @@ static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
 	f2fs_balance_fs(sbi, true);
 
 	/* avoid gc operation during block exchange */
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	f2fs_lock_op(sbi);
 	f2fs_drop_extent_tree(inode);
@@ -1362,8 +1362,8 @@ static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
 	ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
 	f2fs_unlock_op(sbi);
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	return ret;
 }
 
@@ -1393,13 +1393,13 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
 		return ret;
 
 	/* write out all moved pages, if possible */
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
 	truncate_pagecache(inode, offset);
 
 	new_size = i_size_read(inode) - len;
 	ret = f2fs_truncate_blocks(inode, new_size, true);
-	up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
 	if (!ret)
 		f2fs_i_size_write(inode, new_size);
 	return ret;
@@ -1498,8 +1498,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			unsigned int end_offset;
 			pgoff_t end;
 
-			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-			down_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 			truncate_pagecache_range(inode,
 				(loff_t)index << PAGE_SHIFT,
@@ -1511,8 +1511,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
 			if (ret) {
 				f2fs_unlock_op(sbi);
-				up_write(&F2FS_I(inode)->i_mmap_sem);
-				up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+				f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+				f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 				goto out;
 			}
 
@@ -1523,8 +1523,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			f2fs_put_dnode(&dn);
 
 			f2fs_unlock_op(sbi);
-			up_write(&F2FS_I(inode)->i_mmap_sem);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 			f2fs_balance_fs(sbi, dn.node_changed);
 
@@ -1580,9 +1580,9 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 
 	f2fs_balance_fs(sbi, true);
 
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
-	up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
 	if (ret)
 		return ret;
 
@@ -1597,8 +1597,8 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 	idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
 	/* avoid gc operation during block exchange */
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	truncate_pagecache(inode, offset);
 
 	while (!ret && idx > pg_start) {
@@ -1614,14 +1614,14 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 					idx + delta, nr, false);
 		f2fs_unlock_op(sbi);
 	}
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	/* write out all moved pages, if possible */
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
 	truncate_pagecache(inode, offset);
-	up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
 
 	if (!ret)
 		f2fs_i_size_write(inode, new_size);
@@ -1671,13 +1671,13 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 next_alloc:
 		if (has_not_enough_free_secs(sbi, 0,
 			GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
 			if (err && err != -ENODATA && err != -EAGAIN)
 				goto out_err;
 		}
 
-		down_write(&sbi->pin_sem);
+		f2fs_down_write(&sbi->pin_sem);
 
 		f2fs_lock_op(sbi);
 		f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
@@ -1687,7 +1687,7 @@ next_alloc:
 		err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
 		file_dont_truncate(inode);
 
-		up_write(&sbi->pin_sem);
+		f2fs_up_write(&sbi->pin_sem);
 
 		expanded += map.m_len;
 		sec_len -= map.m_len;
@@ -2075,7 +2075,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 	if (ret)
 		goto out;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	/*
 	 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
@@ -2086,7 +2086,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 			  inode->i_ino, get_dirty_pages(inode));
 	ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
 	if (ret) {
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		goto out;
 	}
 
@@ -2099,7 +2099,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 	/* add inode in inmem_list first and set atomic_file */
 	set_inode_flag(inode, FI_ATOMIC_FILE);
 	clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	F2FS_I(inode)->inmem_task = current;
@@ -2406,7 +2406,7 @@ static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
 	if (err)
 		return err;
 
-	down_write(&sbi->sb_lock);
+	f2fs_down_write(&sbi->sb_lock);
 
 	if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
 		goto got_it;
@@ -2425,7 +2425,7 @@ got_it:
 									16))
 		err = -EFAULT;
 out_err:
-	up_write(&sbi->sb_lock);
+	f2fs_up_write(&sbi->sb_lock);
 	mnt_drop_write_file(filp);
 	return err;
 }
@@ -2502,12 +2502,12 @@ static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
 		return ret;
 
 	if (!sync) {
-		if (!down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
 	} else {
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 	}
 
 	ret = f2fs_gc(sbi, sync, true, false, NULL_SEGNO);
@@ -2538,12 +2538,12 @@ static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)
 
 do_more:
 	if (!range->sync) {
-		if (!down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
 	} else {
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 	}
 
 	ret = f2fs_gc(sbi, range->sync, true, false,
@@ -2875,10 +2875,10 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 
 	f2fs_balance_fs(sbi, true);
 
-	down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
 	if (src != dst) {
 		ret = -EBUSY;
-		if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
+		if (!f2fs_down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
 			goto out_src;
 	}
 
@@ -2896,9 +2896,9 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 	f2fs_unlock_op(sbi);
 
 	if (src != dst)
-		up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
 out_src:
-	up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
 out_unlock:
 	if (src != dst)
 		inode_unlock(dst);
@@ -2993,7 +2993,7 @@ static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
 	end_segno = min(start_segno + range.segments, dev_end_segno);
 
 	while (start_segno < end_segno) {
-		if (!down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
@@ -3339,9 +3339,9 @@ int f2fs_precache_extents(struct inode *inode)
 	while (map.m_lblk < end) {
 		map.m_len = end - map.m_lblk;
 
-		down_write(&fi->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
 		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
-		up_write(&fi->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
 		if (err)
 			return err;
 
@@ -3418,11 +3418,11 @@ static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
 	if (!vbuf)
 		return -ENOMEM;
 
-	down_read(&sbi->sb_lock);
+	f2fs_down_read(&sbi->sb_lock);
 	count = utf16s_to_utf8s(sbi->raw_super->volume_name,
 			ARRAY_SIZE(sbi->raw_super->volume_name),
 			UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
-	up_read(&sbi->sb_lock);
+	f2fs_up_read(&sbi->sb_lock);
 
 	if (copy_to_user((char __user *)arg, vbuf,
 				min(FSLABEL_MAX, count)))
@@ -3450,7 +3450,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
 	if (err)
 		goto out;
 
-	down_write(&sbi->sb_lock);
+	f2fs_down_write(&sbi->sb_lock);
 
 	memset(sbi->raw_super->volume_name, 0,
 			sizeof(sbi->raw_super->volume_name));
@@ -3460,7 +3460,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
 
 	err = f2fs_commit_super(sbi, false);
 
-	up_write(&sbi->sb_lock);
+	f2fs_up_write(&sbi->sb_lock);
 
 	mnt_drop_write_file(filp);
 out:
@@ -3586,8 +3586,8 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
 	if (!atomic_read(&F2FS_I(inode)->i_compr_blocks))
 		goto out;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
@@ -3622,8 +3622,8 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
 		released_blocks += ret;
 	}
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 out:
 	inode_unlock(inode);
 
@@ -3739,8 +3739,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
 		goto unlock_inode;
 	}
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
@@ -3775,8 +3775,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
 		reserved_blocks += ret;
 	}
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	if (ret >= 0) {
 		clear_inode_flag(inode, FI_COMPRESS_RELEASED);
@@ -3894,8 +3894,8 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
 	if (ret)
 		goto err;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	ret = filemap_write_and_wait_range(mapping, range.start,
 			to_end ? LLONG_MAX : end_addr - 1);
@@ -3982,8 +3982,8 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
 		ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
 				prev_block, len, range.flags);
 out:
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 err:
 	inode_unlock(inode);
 	file_end_write(filp);
@@ -4423,12 +4423,12 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	trace_f2fs_direct_IO_enter(inode, iocb, count, READ);
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
-		if (!down_read_trylock(&fi->i_gc_rwsem[READ])) {
+		if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
 			ret = -EAGAIN;
 			goto out;
 		}
 	} else {
-		down_read(&fi->i_gc_rwsem[READ]);
+		f2fs_down_read(&fi->i_gc_rwsem[READ]);
 	}
 
 	/*
@@ -4447,7 +4447,7 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		ret = iomap_dio_complete(dio);
 	}
 
-	up_read(&fi->i_gc_rwsem[READ]);
+	f2fs_up_read(&fi->i_gc_rwsem[READ]);
 
 	file_accessed(file);
 out:
@@ -4629,12 +4629,12 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 			goto out;
 		}
 
-		if (!down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
+		if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
 			ret = -EAGAIN;
 			goto out;
 		}
-		if (do_opu && !down_read_trylock(&fi->i_gc_rwsem[READ])) {
-			up_read(&fi->i_gc_rwsem[WRITE]);
+		if (do_opu && !f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
+			f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
 			ret = -EAGAIN;
 			goto out;
 		}
@@ -4643,9 +4643,9 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 		if (ret)
 			goto out;
 
-		down_read(&fi->i_gc_rwsem[WRITE]);
+		f2fs_down_read(&fi->i_gc_rwsem[WRITE]);
 		if (do_opu)
-			down_read(&fi->i_gc_rwsem[READ]);
+			f2fs_down_read(&fi->i_gc_rwsem[READ]);
 	}
 	if (whint_mode == WHINT_MODE_OFF)
 		iocb->ki_hint = WRITE_LIFE_NOT_SET;
@@ -4675,8 +4675,8 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 	if (whint_mode == WHINT_MODE_OFF)
 		iocb->ki_hint = hint;
 	if (do_opu)
-		up_read(&fi->i_gc_rwsem[READ]);
-	up_read(&fi->i_gc_rwsem[WRITE]);
+		f2fs_up_read(&fi->i_gc_rwsem[READ]);
+	f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
 
 	if (ret < 0)
 		goto out;
@@ -4777,12 +4777,12 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 
 	/* Don't leave any preallocated blocks around past i_size. */
 	if (preallocated && i_size_read(inode) < target_size) {
-		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 		if (!f2fs_truncate(inode))
 			file_dont_truncate(inode);
-		up_write(&F2FS_I(inode)->i_mmap_sem);
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	} else {
 		file_dont_truncate(inode);
 	}
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index a6accec60d048..7a486bbf9c07f 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -105,21 +105,21 @@ static int gc_thread_func(void *data)
 			spin_unlock(&sbi->gc_urgent_high_lock);
 
 			wait_ms = gc_th->urgent_sleep_time;
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			goto do_gc;
 		}
 
 		if (foreground) {
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			goto do_gc;
-		} else if (!down_write_trylock(&sbi->gc_lock)) {
+		} else if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			stat_other_skip_bggc_count(sbi);
 			goto next;
 		}
 
 		if (!is_idle(sbi, GC_TIME)) {
 			increase_sleep_time(gc_th, &wait_ms);
-			up_write(&sbi->gc_lock);
+			f2fs_up_write(&sbi->gc_lock);
 			stat_io_skip_bggc_count(sbi);
 			goto next;
 		}
@@ -1230,7 +1230,7 @@ static int move_data_block(struct inode *inode, block_t bidx,
 	fio.new_blkaddr = fio.old_blkaddr = dn.data_blkaddr;
 
 	if (lfs_mode)
-		down_write(&fio.sbi->io_order_lock);
+		f2fs_down_write(&fio.sbi->io_order_lock);
 
 	mpage = f2fs_grab_cache_page(META_MAPPING(fio.sbi),
 					fio.old_blkaddr, false);
@@ -1316,7 +1316,7 @@ recover_block:
 							true, true, true);
 up_out:
 	if (lfs_mode)
-		up_write(&fio.sbi->io_order_lock);
+		f2fs_up_write(&fio.sbi->io_order_lock);
 put_out:
 	f2fs_put_dnode(&dn);
 out:
@@ -1476,7 +1476,7 @@ next_step:
 					special_file(inode->i_mode))
 				continue;
 
-			if (!down_write_trylock(
+			if (!f2fs_down_write_trylock(
 				&F2FS_I(inode)->i_gc_rwsem[WRITE])) {
 				iput(inode);
 				sbi->skipped_gc_rwsem++;
@@ -1489,7 +1489,7 @@ next_step:
 			if (f2fs_post_read_required(inode)) {
 				int err = ra_data_block(inode, start_bidx);
 
-				up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+				f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 				if (err) {
 					iput(inode);
 					continue;
@@ -1500,7 +1500,7 @@ next_step:
 
 			data_page = f2fs_get_read_data_page(inode,
 						start_bidx, REQ_RAHEAD, true);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 			if (IS_ERR(data_page)) {
 				iput(inode);
 				continue;
@@ -1519,14 +1519,14 @@ next_step:
 			int err;
 
 			if (S_ISREG(inode->i_mode)) {
-				if (!down_write_trylock(&fi->i_gc_rwsem[READ])) {
+				if (!f2fs_down_write_trylock(&fi->i_gc_rwsem[READ])) {
 					sbi->skipped_gc_rwsem++;
 					continue;
 				}
-				if (!down_write_trylock(
+				if (!f2fs_down_write_trylock(
 						&fi->i_gc_rwsem[WRITE])) {
 					sbi->skipped_gc_rwsem++;
-					up_write(&fi->i_gc_rwsem[READ]);
+					f2fs_up_write(&fi->i_gc_rwsem[READ]);
 					continue;
 				}
 				locked = true;
@@ -1549,8 +1549,8 @@ next_step:
 				submitted++;
 
 			if (locked) {
-				up_write(&fi->i_gc_rwsem[WRITE]);
-				up_write(&fi->i_gc_rwsem[READ]);
+				f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
+				f2fs_up_write(&fi->i_gc_rwsem[READ]);
 			}
 
 			stat_inc_data_blk_count(sbi, 1, gc_type);
@@ -1808,7 +1808,7 @@ stop:
 				reserved_segments(sbi),
 				prefree_segments(sbi));
 
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 
 	put_gc_inode(&gc_list);
 
@@ -1937,7 +1937,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
 	long long block_count;
 	int segs = secs * sbi->segs_per_sec;
 
-	down_write(&sbi->sb_lock);
+	f2fs_down_write(&sbi->sb_lock);
 
 	section_count = le32_to_cpu(raw_sb->section_count);
 	segment_count = le32_to_cpu(raw_sb->segment_count);
@@ -1958,7 +1958,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
 						cpu_to_le32(dev_segs + segs);
 	}
 
-	up_write(&sbi->sb_lock);
+	f2fs_up_write(&sbi->sb_lock);
 }
 
 static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
@@ -2032,7 +2032,7 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 	secs = div_u64(shrunk_blocks, BLKS_PER_SEC(sbi));
 
 	/* stop other GC */
-	if (!down_write_trylock(&sbi->gc_lock))
+	if (!f2fs_down_write_trylock(&sbi->gc_lock))
 		return -EAGAIN;
 
 	/* stop CP to protect MAIN_SEC in free_segment_range */
@@ -2052,15 +2052,15 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 
 out_unlock:
 	f2fs_unlock_op(sbi);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 	if (err)
 		return err;
 
 	set_sbi_flag(sbi, SBI_IS_RESIZEFS);
 
 	freeze_super(sbi->sb);
-	down_write(&sbi->gc_lock);
-	down_write(&sbi->cp_global_sem);
+	f2fs_down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->cp_global_sem);
 
 	spin_lock(&sbi->stat_lock);
 	if (shrunk_blocks + valid_user_blocks(sbi) +
@@ -2105,8 +2105,8 @@ recover_out:
 		spin_unlock(&sbi->stat_lock);
 	}
 out_err:
-	up_write(&sbi->cp_global_sem);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->cp_global_sem);
+	f2fs_up_write(&sbi->gc_lock);
 	thaw_super(sbi->sb);
 	clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
 	return err;
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 4b5cefa3f90c1..a578bf83b803b 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -629,7 +629,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
 	}
 
 	if (inode) {
-		down_write(&F2FS_I(inode)->i_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_sem);
 		page = f2fs_init_inode_metadata(inode, dir, fname, ipage);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
@@ -658,7 +658,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
 	f2fs_update_parent_metadata(dir, inode, 0);
 fail:
 	if (inode)
-		up_write(&F2FS_I(inode)->i_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_sem);
 out:
 	f2fs_put_page(ipage, 1);
 	return err;
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index b83b143382243..f978c0f91558d 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -196,7 +196,7 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
 	__u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 	int i, cold_count, hot_count;
 
-	down_read(&sbi->sb_lock);
+	f2fs_down_read(&sbi->sb_lock);
 
 	cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 	hot_count = sbi->raw_super->hot_ext_count;
@@ -206,7 +206,7 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
 			break;
 	}
 
-	up_read(&sbi->sb_lock);
+	f2fs_up_read(&sbi->sb_lock);
 
 	if (i == cold_count + hot_count)
 		return;
@@ -299,19 +299,19 @@ static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
 			(!ext_cnt && !noext_cnt))
 		return;
 
-	down_read(&sbi->sb_lock);
+	f2fs_down_read(&sbi->sb_lock);
 
 	cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 	hot_count = sbi->raw_super->hot_ext_count;
 
 	for (i = cold_count; i < cold_count + hot_count; i++) {
 		if (is_extension_exist(name, extlist[i], false)) {
-			up_read(&sbi->sb_lock);
+			f2fs_up_read(&sbi->sb_lock);
 			return;
 		}
 	}
 
-	up_read(&sbi->sb_lock);
+	f2fs_up_read(&sbi->sb_lock);
 
 	for (i = 0; i < noext_cnt; i++) {
 		if (is_extension_exist(name, noext[i], false)) {
@@ -1022,11 +1022,11 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		new_page = NULL;
 
 		new_inode->i_ctime = current_time(new_inode);
-		down_write(&F2FS_I(new_inode)->i_sem);
+		f2fs_down_write(&F2FS_I(new_inode)->i_sem);
 		if (old_dir_entry)
 			f2fs_i_links_write(new_inode, false);
 		f2fs_i_links_write(new_inode, false);
-		up_write(&F2FS_I(new_inode)->i_sem);
+		f2fs_up_write(&F2FS_I(new_inode)->i_sem);
 
 		if (!new_inode->i_nlink)
 			f2fs_add_orphan_inode(new_inode);
@@ -1047,13 +1047,13 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			f2fs_i_links_write(new_dir, true);
 	}
 
-	down_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_down_write(&F2FS_I(old_inode)->i_sem);
 	if (!old_dir_entry || whiteout)
 		file_lost_pino(old_inode);
 	else
 		/* adjust dir's i_pino to pass fsck check */
 		f2fs_i_pino_write(old_inode, new_dir->i_ino);
-	up_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_up_write(&F2FS_I(old_inode)->i_sem);
 
 	old_inode->i_ctime = current_time(old_inode);
 	f2fs_mark_inode_dirty_sync(old_inode, false);
@@ -1213,38 +1213,38 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	/* update directory entry info of old dir inode */
 	f2fs_set_link(old_dir, old_entry, old_page, new_inode);
 
-	down_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_down_write(&F2FS_I(old_inode)->i_sem);
 	if (!old_dir_entry)
 		file_lost_pino(old_inode);
 	else
 		/* adjust dir's i_pino to pass fsck check */
 		f2fs_i_pino_write(old_inode, new_dir->i_ino);
-	up_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_up_write(&F2FS_I(old_inode)->i_sem);
 
 	old_dir->i_ctime = current_time(old_dir);
 	if (old_nlink) {
-		down_write(&F2FS_I(old_dir)->i_sem);
+		f2fs_down_write(&F2FS_I(old_dir)->i_sem);
 		f2fs_i_links_write(old_dir, old_nlink > 0);
-		up_write(&F2FS_I(old_dir)->i_sem);
+		f2fs_up_write(&F2FS_I(old_dir)->i_sem);
 	}
 	f2fs_mark_inode_dirty_sync(old_dir, false);
 
 	/* update directory entry info of new dir inode */
 	f2fs_set_link(new_dir, new_entry, new_page, old_inode);
 
-	down_write(&F2FS_I(new_inode)->i_sem);
+	f2fs_down_write(&F2FS_I(new_inode)->i_sem);
 	if (!new_dir_entry)
 		file_lost_pino(new_inode);
 	else
 		/* adjust dir's i_pino to pass fsck check */
 		f2fs_i_pino_write(new_inode, old_dir->i_ino);
-	up_write(&F2FS_I(new_inode)->i_sem);
+	f2fs_up_write(&F2FS_I(new_inode)->i_sem);
 
 	new_dir->i_ctime = current_time(new_dir);
 	if (new_nlink) {
-		down_write(&F2FS_I(new_dir)->i_sem);
+		f2fs_down_write(&F2FS_I(new_dir)->i_sem);
 		f2fs_i_links_write(new_dir, new_nlink > 0);
-		up_write(&F2FS_I(new_dir)->i_sem);
+		f2fs_up_write(&F2FS_I(new_dir)->i_sem);
 	}
 	f2fs_mark_inode_dirty_sync(new_dir, false);
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index e0b5eb28d3839..6ce0d7e92cac2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -382,14 +382,14 @@ int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid)
 	struct nat_entry *e;
 	bool need = false;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e) {
 		if (!get_nat_flag(e, IS_CHECKPOINTED) &&
 				!get_nat_flag(e, HAS_FSYNCED_INODE))
 			need = true;
 	}
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 	return need;
 }
 
@@ -399,11 +399,11 @@ bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid)
 	struct nat_entry *e;
 	bool is_cp = true;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e && !get_nat_flag(e, IS_CHECKPOINTED))
 		is_cp = false;
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 	return is_cp;
 }
 
@@ -413,13 +413,13 @@ bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino)
 	struct nat_entry *e;
 	bool need_update = true;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, ino);
 	if (e && get_nat_flag(e, HAS_LAST_FSYNC) &&
 			(get_nat_flag(e, IS_CHECKPOINTED) ||
 			 get_nat_flag(e, HAS_FSYNCED_INODE)))
 		need_update = false;
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 	return need_update;
 }
 
@@ -431,14 +431,14 @@ static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
 	struct nat_entry *new, *e;
 
 	/* Let's mitigate lock contention of nat_tree_lock during checkpoint */
-	if (rwsem_is_locked(&sbi->cp_global_sem))
+	if (f2fs_rwsem_is_locked(&sbi->cp_global_sem))
 		return;
 
 	new = __alloc_nat_entry(sbi, nid, false);
 	if (!new)
 		return;
 
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (!e)
 		e = __init_nat_entry(nm_i, new, ne, false);
@@ -447,7 +447,7 @@ static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
 				nat_get_blkaddr(e) !=
 					le32_to_cpu(ne->block_addr) ||
 				nat_get_version(e) != ne->version);
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 	if (e != new)
 		__free_nat_entry(new);
 }
@@ -459,7 +459,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
 	struct nat_entry *e;
 	struct nat_entry *new = __alloc_nat_entry(sbi, ni->nid, true);
 
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, ni->nid);
 	if (!e) {
 		e = __init_nat_entry(nm_i, new, NULL, true);
@@ -508,7 +508,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
 			set_nat_flag(e, HAS_FSYNCED_INODE, true);
 		set_nat_flag(e, HAS_LAST_FSYNC, fsync_done);
 	}
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 }
 
 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
@@ -516,7 +516,7 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	int nr = nr_shrink;
 
-	if (!down_write_trylock(&nm_i->nat_tree_lock))
+	if (!f2fs_down_write_trylock(&nm_i->nat_tree_lock))
 		return 0;
 
 	spin_lock(&nm_i->nat_list_lock);
@@ -538,7 +538,7 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 	}
 	spin_unlock(&nm_i->nat_list_lock);
 
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 	return nr - nr_shrink;
 }
 
@@ -560,13 +560,13 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
 	ni->nid = nid;
 retry:
 	/* Check nat cache */
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e) {
 		ni->ino = nat_get_ino(e);
 		ni->blk_addr = nat_get_blkaddr(e);
 		ni->version = nat_get_version(e);
-		up_read(&nm_i->nat_tree_lock);
+		f2fs_up_read(&nm_i->nat_tree_lock);
 		return 0;
 	}
 
@@ -576,11 +576,11 @@ retry:
 	 * nat_tree_lock. Therefore, we should retry, if we failed to grab here
 	 * while not bothering checkpoint.
 	 */
-	if (!rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) {
+	if (!f2fs_rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) {
 		down_read(&curseg->journal_rwsem);
-	} else if (rwsem_is_contended(&nm_i->nat_tree_lock) ||
+	} else if (f2fs_rwsem_is_contended(&nm_i->nat_tree_lock) ||
 				!down_read_trylock(&curseg->journal_rwsem)) {
-		up_read(&nm_i->nat_tree_lock);
+		f2fs_up_read(&nm_i->nat_tree_lock);
 		goto retry;
 	}
 
@@ -589,15 +589,15 @@ retry:
 		ne = nat_in_journal(journal, i);
 		node_info_from_raw_nat(ni, &ne);
 	}
-	up_read(&curseg->journal_rwsem);
+        up_read(&curseg->journal_rwsem);
 	if (i >= 0) {
-		up_read(&nm_i->nat_tree_lock);
+		f2fs_up_read(&nm_i->nat_tree_lock);
 		goto cache;
 	}
 
 	/* Fill node_info from nat page */
 	index = current_nat_addr(sbi, nid);
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 
 	page = f2fs_get_meta_page(sbi, index);
 	if (IS_ERR(page))
@@ -1609,17 +1609,17 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 		goto redirty_out;
 
 	if (wbc->for_reclaim) {
-		if (!down_read_trylock(&sbi->node_write))
+		if (!f2fs_down_read_trylock(&sbi->node_write))
 			goto redirty_out;
 	} else {
-		down_read(&sbi->node_write);
+		f2fs_down_read(&sbi->node_write);
 	}
 
 	/* This page is already truncated */
 	if (unlikely(ni.blk_addr == NULL_ADDR)) {
 		ClearPageUptodate(page);
 		dec_page_count(sbi, F2FS_DIRTY_NODES);
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 		unlock_page(page);
 		return 0;
 	}
@@ -1627,7 +1627,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	if (__is_valid_data_blkaddr(ni.blk_addr) &&
 		!f2fs_is_valid_blkaddr(sbi, ni.blk_addr,
 					DATA_GENERIC_ENHANCE)) {
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 		goto redirty_out;
 	}
 
@@ -1648,7 +1648,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	f2fs_do_write_node_page(nid, &fio);
 	set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page));
 	dec_page_count(sbi, F2FS_DIRTY_NODES);
-	up_read(&sbi->node_write);
+	f2fs_up_read(&sbi->node_write);
 
 	if (wbc->for_reclaim) {
 		f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE);
@@ -2225,14 +2225,14 @@ bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi)
 	unsigned int i;
 	bool ret = true;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	for (i = 0; i < nm_i->nat_blocks; i++) {
 		if (!test_bit_le(i, nm_i->nat_block_bitmap)) {
 			ret = false;
 			break;
 		}
 	}
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 
 	return ret;
 }
@@ -2415,7 +2415,7 @@ static void scan_free_nid_bits(struct f2fs_sb_info *sbi)
 	unsigned int i, idx;
 	nid_t nid;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 
 	for (i = 0; i < nm_i->nat_blocks; i++) {
 		if (!test_bit_le(i, nm_i->nat_block_bitmap))
@@ -2438,7 +2438,7 @@ static void scan_free_nid_bits(struct f2fs_sb_info *sbi)
 out:
 	scan_curseg_cache(sbi);
 
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 }
 
 static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
@@ -2473,7 +2473,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 	f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES,
 							META_NAT, true);
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 
 	while (1) {
 		if (!test_bit_le(NAT_BLOCK_OFFSET(nid),
@@ -2488,7 +2488,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 			}
 
 			if (ret) {
-				up_read(&nm_i->nat_tree_lock);
+				f2fs_up_read(&nm_i->nat_tree_lock);
 				f2fs_err(sbi, "NAT is corrupt, run fsck to fix it");
 				return ret;
 			}
@@ -2508,7 +2508,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 	/* find free nids from current sum_pages */
 	scan_curseg_cache(sbi);
 
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 
 	f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid),
 					nm_i->ra_nid_pages, META_NAT, false);
@@ -2953,7 +2953,7 @@ void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	unsigned int nat_ofs;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 
 	for (nat_ofs = 0; nat_ofs < nm_i->nat_blocks; nat_ofs++) {
 		unsigned int valid = 0, nid_ofs = 0;
@@ -2973,7 +2973,7 @@ void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi)
 		__update_nat_bits(nm_i, nat_ofs, valid);
 	}
 
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 }
 
 static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
@@ -3071,15 +3071,15 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 	 * nat_cnt[DIRTY_NAT].
 	 */
 	if (cpc->reason & CP_UMOUNT) {
-		down_write(&nm_i->nat_tree_lock);
+		f2fs_down_write(&nm_i->nat_tree_lock);
 		remove_nats_in_journal(sbi);
-		up_write(&nm_i->nat_tree_lock);
+		f2fs_up_write(&nm_i->nat_tree_lock);
 	}
 
 	if (!nm_i->nat_cnt[DIRTY_NAT])
 		return 0;
 
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 
 	/*
 	 * if there are no enough space in journal to store dirty nat
@@ -3108,7 +3108,7 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 			break;
 	}
 
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 	/* Allow dirty nats by node block allocation in write_begin */
 
 	return err;
@@ -3228,7 +3228,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
 
 	mutex_init(&nm_i->build_lock);
 	spin_lock_init(&nm_i->nid_list_lock);
-	init_rwsem(&nm_i->nat_tree_lock);
+	init_f2fs_rwsem(&nm_i->nat_tree_lock);
 
 	nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid);
 	nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP);
@@ -3334,7 +3334,7 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
 	spin_unlock(&nm_i->nid_list_lock);
 
 	/* destroy nat cache */
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 	while ((found = __gang_lookup_nat_cache(nm_i,
 					nid, NATVEC_SIZE, natvec))) {
 		unsigned idx;
@@ -3364,7 +3364,7 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
 			kmem_cache_free(nat_entry_set_slab, setvec[idx]);
 		}
 	}
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 
 	kvfree(nm_i->nat_block_bitmap);
 	if (nm_i->free_nid_bitmap) {
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index e65c73c4411dc..be784f983b4a9 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -796,7 +796,7 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
 	INIT_LIST_HEAD(&dir_list);
 
 	/* prevent checkpoint */
-	down_write(&sbi->cp_global_sem);
+	f2fs_down_write(&sbi->cp_global_sem);
 
 	/* step #1: find fsynced inode numbers */
 	err = find_fsync_dnodes(sbi, &inode_list, check_only);
@@ -845,7 +845,7 @@ skip:
 	if (!err)
 		clear_sbi_flag(sbi, SBI_POR_DOING);
 
-	up_write(&sbi->cp_global_sem);
+	f2fs_up_write(&sbi->cp_global_sem);
 
 	/* let's drop all the directory inodes for clean checkpoint */
 	destroy_fsync_dnodes(&dir_list, err);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a2740f1836bf2..df410a97731cb 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -474,7 +474,7 @@ int f2fs_commit_inmem_pages(struct inode *inode)
 
 	f2fs_balance_fs(sbi, true);
 
-	down_write(&fi->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
 
 	f2fs_lock_op(sbi);
 	set_inode_flag(inode, FI_ATOMIC_COMMIT);
@@ -486,7 +486,7 @@ int f2fs_commit_inmem_pages(struct inode *inode)
 	clear_inode_flag(inode, FI_ATOMIC_COMMIT);
 
 	f2fs_unlock_op(sbi);
-	up_write(&fi->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
 
 	return err;
 }
@@ -524,7 +524,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 			io_schedule();
 			finish_wait(&sbi->gc_thread->fggc_wq, &wait);
 		} else {
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			f2fs_gc(sbi, false, false, false, NULL_SEGNO);
 		}
 	}
@@ -532,7 +532,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 
 static inline bool excess_dirty_threshold(struct f2fs_sb_info *sbi)
 {
-	int factor = rwsem_is_locked(&sbi->cp_rwsem) ? 3 : 2;
+	int factor = f2fs_rwsem_is_locked(&sbi->cp_rwsem) ? 3 : 2;
 	unsigned int dents = get_pages(sbi, F2FS_DIRTY_DENTS);
 	unsigned int qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
 	unsigned int nodes = get_pages(sbi, F2FS_DIRTY_NODES);
@@ -573,7 +573,7 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
 
 	/* there is background inflight IO or foreground operation recently */
 	if (is_inflight_io(sbi, REQ_TIME) ||
-		(!f2fs_time_over(sbi, REQ_TIME) && rwsem_is_locked(&sbi->cp_rwsem)))
+		(!f2fs_time_over(sbi, REQ_TIME) && f2fs_rwsem_is_locked(&sbi->cp_rwsem)))
 		return;
 
 	/* exceed periodical checkpoint timeout threshold */
@@ -2824,7 +2824,7 @@ static void __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
 	if (!sbi->am.atgc_enabled)
 		return;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&SIT_I(sbi)->sentry_lock);
@@ -2834,7 +2834,7 @@ static void __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
 	up_write(&SIT_I(sbi)->sentry_lock);
 	mutex_unlock(&curseg->curseg_mutex);
 
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 
 }
 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi)
@@ -2985,7 +2985,7 @@ void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
 	struct curseg_info *curseg = CURSEG_I(sbi, type);
 	unsigned int segno;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&SIT_I(sbi)->sentry_lock);
 
@@ -3009,7 +3009,7 @@ unlock:
 			    type, segno, curseg->segno);
 
 	mutex_unlock(&curseg->curseg_mutex);
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 static void __allocate_new_segment(struct f2fs_sb_info *sbi, int type,
@@ -3041,23 +3041,23 @@ static void __allocate_new_section(struct f2fs_sb_info *sbi,
 
 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force)
 {
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 	down_write(&SIT_I(sbi)->sentry_lock);
 	__allocate_new_section(sbi, type, force);
 	up_write(&SIT_I(sbi)->sentry_lock);
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
 {
 	int i;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 	down_write(&SIT_I(sbi)->sentry_lock);
 	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++)
 		__allocate_new_segment(sbi, i, false, false);
 	up_write(&SIT_I(sbi)->sentry_lock);
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 static const struct segment_allocation default_salloc_ops = {
@@ -3195,9 +3195,9 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
 	if (sbi->discard_blks == 0)
 		goto out;
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	err = f2fs_write_checkpoint(sbi, &cpc);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 	if (err)
 		goto out;
 
@@ -3434,7 +3434,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	bool from_gc = (type == CURSEG_ALL_DATA_ATGC);
 	struct seg_entry *se = NULL;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&sit_i->sentry_lock);
@@ -3517,7 +3517,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 
 	mutex_unlock(&curseg->curseg_mutex);
 
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
@@ -3553,7 +3553,7 @@ static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
 	bool keep_order = (f2fs_lfs_mode(fio->sbi) && type == CURSEG_COLD_DATA);
 
 	if (keep_order)
-		down_read(&fio->sbi->io_order_lock);
+		f2fs_down_read(&fio->sbi->io_order_lock);
 reallocate:
 	f2fs_allocate_data_block(fio->sbi, fio->page, fio->old_blkaddr,
 			&fio->new_blkaddr, sum, type, fio);
@@ -3573,7 +3573,7 @@ reallocate:
 	f2fs_update_device_state(fio->sbi, fio->ino, fio->new_blkaddr, 1);
 
 	if (keep_order)
-		up_read(&fio->sbi->io_order_lock);
+		f2fs_up_read(&fio->sbi->io_order_lock);
 }
 
 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
@@ -3708,7 +3708,7 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 	se = get_seg_entry(sbi, segno);
 	type = se->type;
 
-	down_write(&SM_I(sbi)->curseg_lock);
+	f2fs_down_write(&SM_I(sbi)->curseg_lock);
 
 	if (!recover_curseg) {
 		/* for recovery flow */
@@ -3777,7 +3777,7 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 
 	up_write(&sit_i->sentry_lock);
 	mutex_unlock(&curseg->curseg_mutex);
-	up_write(&SM_I(sbi)->curseg_lock);
+	f2fs_up_write(&SM_I(sbi)->curseg_lock);
 }
 
 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
@@ -5261,7 +5261,7 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi)
 
 	INIT_LIST_HEAD(&sm_info->sit_entry_set);
 
-	init_rwsem(&sm_info->curseg_lock);
+	init_f2fs_rwsem(&sm_info->curseg_lock);
 
 	if (!f2fs_readonly(sbi->sb)) {
 		err = f2fs_create_flush_cmd_control(sbi);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 13c4cb31a1a12..b25636ad10fab 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1362,17 +1362,17 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
 	/* Initialize f2fs-specific inode info */
 	atomic_set(&fi->dirty_pages, 0);
 	atomic_set(&fi->i_compr_blocks, 0);
-	init_rwsem(&fi->i_sem);
+	init_f2fs_rwsem(&fi->i_sem);
 	spin_lock_init(&fi->i_size_lock);
 	INIT_LIST_HEAD(&fi->dirty_list);
 	INIT_LIST_HEAD(&fi->gdirty_list);
 	INIT_LIST_HEAD(&fi->inmem_ilist);
 	INIT_LIST_HEAD(&fi->inmem_pages);
 	mutex_init(&fi->inmem_lock);
-	init_rwsem(&fi->i_gc_rwsem[READ]);
-	init_rwsem(&fi->i_gc_rwsem[WRITE]);
-	init_rwsem(&fi->i_mmap_sem);
-	init_rwsem(&fi->i_xattr_sem);
+	init_f2fs_rwsem(&fi->i_gc_rwsem[READ]);
+	init_f2fs_rwsem(&fi->i_gc_rwsem[WRITE]);
+	init_f2fs_rwsem(&fi->i_mmap_sem);
+	init_f2fs_rwsem(&fi->i_xattr_sem);
 
 	/* Will be used by directory only */
 	fi->i_dir_level = F2FS_SB(sb)->dir_level;
@@ -2099,7 +2099,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 	f2fs_update_time(sbi, DISABLE_TIME);
 
 	while (!f2fs_time_over(sbi, DISABLE_TIME)) {
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 		err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
 		if (err == -ENODATA) {
 			err = 0;
@@ -2121,7 +2121,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 		goto restore_flag;
 	}
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	cpc.reason = CP_PAUSE;
 	set_sbi_flag(sbi, SBI_CP_DISABLED);
 	err = f2fs_write_checkpoint(sbi, &cpc);
@@ -2133,7 +2133,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 	spin_unlock(&sbi->stat_lock);
 
 out_unlock:
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 restore_flag:
 	sbi->sb->s_flags = s_flags;	/* Restore SB_RDONLY status */
 	return err;
@@ -2153,12 +2153,12 @@ static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
 	if (unlikely(retry < 0))
 		f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	f2fs_dirty_to_prefree(sbi);
 
 	clear_sbi_flag(sbi, SBI_CP_DISABLED);
 	set_sbi_flag(sbi, SBI_IS_DIRTY);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 
 	f2fs_sync_fs(sbi->sb, 1);
 }
@@ -2719,18 +2719,18 @@ int f2fs_quota_sync(struct super_block *sb, int type)
 		/*
 		 * do_quotactl
 		 *  f2fs_quota_sync
-		 *  down_read(quota_sem)
+		 *  f2fs_down_read(quota_sem)
 		 *  dquot_writeback_dquots()
 		 *  f2fs_dquot_commit
 		 *			      block_operation
-		 *			      down_read(quota_sem)
+		 *			      f2fs_down_read(quota_sem)
 		 */
 		f2fs_lock_op(sbi);
-		down_read(&sbi->quota_sem);
+		f2fs_down_read(&sbi->quota_sem);
 
 		ret = f2fs_quota_sync_file(sbi, cnt);
 
-		up_read(&sbi->quota_sem);
+		f2fs_up_read(&sbi->quota_sem);
 		f2fs_unlock_op(sbi);
 
 		inode_unlock(dqopt->files[cnt]);
@@ -2855,11 +2855,11 @@ static int f2fs_dquot_commit(struct dquot *dquot)
 	struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
 	int ret;
 
-	down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
+	f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
 	ret = dquot_commit(dquot);
 	if (ret < 0)
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
-	up_read(&sbi->quota_sem);
+	f2fs_up_read(&sbi->quota_sem);
 	return ret;
 }
 
@@ -2868,11 +2868,11 @@ static int f2fs_dquot_acquire(struct dquot *dquot)
 	struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
 	int ret;
 
-	down_read(&sbi->quota_sem);
+	f2fs_down_read(&sbi->quota_sem);
 	ret = dquot_acquire(dquot);
 	if (ret < 0)
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
-	up_read(&sbi->quota_sem);
+	f2fs_up_read(&sbi->quota_sem);
 	return ret;
 }
 
@@ -3613,14 +3613,14 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
 
 	INIT_LIST_HEAD(&sbi->s_list);
 	mutex_init(&sbi->umount_mutex);
-	init_rwsem(&sbi->io_order_lock);
+	init_f2fs_rwsem(&sbi->io_order_lock);
 	spin_lock_init(&sbi->cp_lock);
 
 	sbi->dirty_device = 0;
 	spin_lock_init(&sbi->dev_lock);
 
-	init_rwsem(&sbi->sb_lock);
-	init_rwsem(&sbi->pin_sem);
+	init_f2fs_rwsem(&sbi->sb_lock);
+	init_f2fs_rwsem(&sbi->pin_sem);
 }
 
 static int init_percpu_info(struct f2fs_sb_info *sbi)
@@ -4072,11 +4072,11 @@ try_onemore:
 
 	/* init f2fs-specific super block info */
 	sbi->valid_super_block = valid_super_block;
-	init_rwsem(&sbi->gc_lock);
+	init_f2fs_rwsem(&sbi->gc_lock);
 	mutex_init(&sbi->writepages);
-	init_rwsem(&sbi->cp_global_sem);
-	init_rwsem(&sbi->node_write);
-	init_rwsem(&sbi->node_change);
+	init_f2fs_rwsem(&sbi->cp_global_sem);
+	init_f2fs_rwsem(&sbi->node_write);
+	init_f2fs_rwsem(&sbi->node_change);
 
 	/* disallow all the data/node/meta page writes */
 	set_sbi_flag(sbi, SBI_POR_DOING);
@@ -4097,18 +4097,18 @@ try_onemore:
 		}
 
 		for (j = HOT; j < n; j++) {
-			init_rwsem(&sbi->write_io[i][j].io_rwsem);
+			init_f2fs_rwsem(&sbi->write_io[i][j].io_rwsem);
 			sbi->write_io[i][j].sbi = sbi;
 			sbi->write_io[i][j].bio = NULL;
 			spin_lock_init(&sbi->write_io[i][j].io_lock);
 			INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
 			INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
-			init_rwsem(&sbi->write_io[i][j].bio_list_lock);
+			init_f2fs_rwsem(&sbi->write_io[i][j].bio_list_lock);
 		}
 	}
 
-	init_rwsem(&sbi->cp_rwsem);
-	init_rwsem(&sbi->quota_sem);
+	init_f2fs_rwsem(&sbi->cp_rwsem);
+	init_f2fs_rwsem(&sbi->quota_sem);
 	init_waitqueue_head(&sbi->cp_wait);
 	init_sb_info(sbi);
 
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 26362498a2b30..eb4b63281568c 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -364,7 +364,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
 		if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN)
 			return -EINVAL;
 
-		down_write(&sbi->sb_lock);
+		f2fs_down_write(&sbi->sb_lock);
 
 		ret = f2fs_update_extension_list(sbi, name, hot, set);
 		if (ret)
@@ -374,7 +374,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
 		if (ret)
 			f2fs_update_extension_list(sbi, name, hot, !set);
 out:
-		up_write(&sbi->sb_lock);
+		f2fs_up_write(&sbi->sb_lock);
 		return ret ? ret : count;
 	}
 
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
index 52c87e8fcdc3a..5cbc463247872 100644
--- a/fs/f2fs/verity.c
+++ b/fs/f2fs/verity.c
@@ -208,7 +208,7 @@ cleanup:
 	 * from re-instantiating cached pages we are truncating (since unlike
 	 * normal file accesses, garbage collection isn't limited by i_size).
 	 */
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	truncate_inode_pages(inode->i_mapping, inode->i_size);
 	err2 = f2fs_truncate(inode);
 	if (err2) {
@@ -216,7 +216,7 @@ cleanup:
 			 err2);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 	}
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	clear_inode_flag(inode, FI_VERITY_IN_PROGRESS);
 	return err ?: err2;
 }
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index d125f8c61bf51..1cd844a8e38a7 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -523,10 +523,10 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
 	if (len > F2FS_NAME_LEN)
 		return -ERANGE;
 
-	down_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);
 	error = lookup_all_xattrs(inode, ipage, index, len, name,
 				&entry, &base_addr, &base_size, &is_inline);
-	up_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_xattr_sem);
 	if (error)
 		return error;
 
@@ -560,9 +560,9 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 	int error;
 	size_t rest = buffer_size;
 
-	down_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);
 	error = read_all_xattrs(inode, NULL, &base_addr);
-	up_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_xattr_sem);
 	if (error)
 		return error;
 
@@ -784,9 +784,9 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
 	f2fs_balance_fs(sbi, true);
 
 	f2fs_lock_op(sbi);
-	down_write(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_xattr_sem);
 	err = __f2fs_setxattr(inode, index, name, value, size, ipage, flags);
-	up_write(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_xattr_sem);
 	f2fs_unlock_op(sbi);
 
 	f2fs_update_time(sbi, REQ_TIME);
-- 
GitLab


From 04e34c8449dc6c817cdcab57c2b47def7bf96164 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Tue, 18 Jan 2022 11:48:02 +0800
Subject: [PATCH 2792/4878] f2fs: fix to enable ATGC correctly via gc_idle
 sysfs interface

It needs to assign sbi->gc_mode with GC_IDLE_AT rather than GC_AT when
user tries to enable ATGC via gc_idle sysfs interface, fix it.

Fixes: 093749e296e2 ("f2fs: support age threshold based garbage collection")
Cc: Zhipeng Tan <tanzhipeng@hust.edu.cn>
Signed-off-by: Jicheng Shao <shaojicheng@hust.edu.cn>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index eb4b63281568c..5a381d0fe4a47 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -482,7 +482,7 @@ out:
 		} else if (t == GC_IDLE_AT) {
 			if (!sbi->am.atgc_enabled)
 				return -EINVAL;
-			sbi->gc_mode = GC_AT;
+			sbi->gc_mode = GC_IDLE_AT;
 		} else {
 			sbi->gc_mode = GC_NORMAL;
 		}
-- 
GitLab


From 8e4511805d912ad1b244f136e8b692bce63701f5 Mon Sep 17 00:00:00 2001
From: Steve Muckle <smuckle@google.com>
Date: Fri, 7 Jan 2022 18:27:56 +0000
Subject: [PATCH 2793/4878] ANDROID: GKI: enable test_stackinit kernel module

Bug: 181024194
Change-Id: Ib7f9ea287fea7d27a87cdf549d0c4914317f8e56
Signed-off-by: Steve Muckle <smuckle@google.com>
---
 android/abi_gki_aarch64                |   6 ++
 android/abi_gki_aarch64_virtual_device | 134 ++++++++-----------------
 android/gki_aarch64_modules            |   1 +
 arch/arm64/configs/gki_defconfig       |   2 +-
 arch/x86/configs/gki_defconfig         |   1 +
 5 files changed, 49 insertions(+), 95 deletions(-)

diff --git a/android/abi_gki_aarch64 b/android/abi_gki_aarch64
index 57914f291962e..687e6f44d9ee1 100644
--- a/android/abi_gki_aarch64
+++ b/android/abi_gki_aarch64
@@ -2,3 +2,9 @@
 # commonly used symbols
   module_layout
   __put_task_struct
+
+# required by test_stackinit.ko
+  memcpy
+  memset
+  printk
+  __stack_chk_fail
diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 9974cae40e66e..2716a11f4ccd4 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -28,9 +28,6 @@
   bt_warn
   cancel_delayed_work_sync
   cancel_work_sync
-  capable
-  cfg80211_inform_bss_data
-  cfg80211_put_bss
   __cfi_slowpath
   __check_object_size
   __class_create
@@ -62,15 +59,12 @@
   delayed_work_timer_fn
   del_gendisk
   del_timer
-  del_timer_sync
   destroy_workqueue
   dev_close
   _dev_err
   device_add_disk
   device_create
-  device_initialize
   device_init_wakeup
-  device_register
   device_release_driver
   device_unregister
   _dev_info
@@ -82,7 +76,6 @@
   devm_request_threaded_irq
   _dev_notice
   dev_queue_xmit
-  dev_set_name
   _dev_warn
   dma_alloc_attrs
   dma_buf_export
@@ -96,8 +89,6 @@
   dma_set_mask
   dma_sync_sg_for_device
   dma_unmap_sg_attrs
-  down_read
-  down_write
   ether_setup
   ethtool_op_get_link
   eth_validate_addr
@@ -123,14 +114,8 @@
   hci_recv_frame
   hci_register_dev
   hci_unregister_dev
-  hwrng_register
-  hwrng_unregister
   ida_alloc_range
   ida_free
-  idr_alloc
-  idr_destroy
-  idr_remove
-  __init_rwsem
   __init_swait_queue_head
   init_timer_key
   init_wait_entry
@@ -160,12 +145,10 @@
   kmem_cache_free
   kmemdup
   kobject_uevent
-  krealloc
   kstrdup
   kstrndup
   kstrtoint
   kstrtouint
-  kstrtoull
   ktime_get
   ktime_get_mono_fast_ns
   ktime_get_raw_ts64
@@ -184,13 +167,10 @@
   memcpy
   memmove
   memparse
-  memremap
   memset
   memstart_addr
-  memunmap
   misc_deregister
   misc_register
-  mod_timer
   module_layout
   module_put
   __msecs_to_jiffies
@@ -216,15 +196,11 @@
   nf_conntrack_destroy
   no_llseek
   nonseekable_open
-  noop_llseek
   nr_cpu_ids
   __num_online_cpus
-  of_find_property
-  of_get_property
   of_property_read_variable_u32_array
   __page_pinner_migration_failed
   param_ops_bool
-  param_ops_charp
   param_ops_int
   param_ops_uint
   passthru_features_check
@@ -250,11 +226,8 @@
   platform_get_irq
   platform_get_resource
   pm_runtime_allow
-  __pm_runtime_disable
-  pm_runtime_enable
   pm_runtime_force_resume
   pm_runtime_force_suspend
-  __pm_runtime_idle
   __pm_runtime_resume
   pm_runtime_set_autosuspend_delay
   __pm_runtime_suspend
@@ -305,9 +278,7 @@
   schedule
   schedule_timeout
   scnprintf
-  seq_lseek
   seq_printf
-  seq_read
   serio_close
   serio_interrupt
   serio_open
@@ -330,7 +301,6 @@
   snd_card_free
   snd_card_new
   snd_card_register
-  snd_ctl_enum_info
   snd_ctl_sync_vmaster
   snd_device_new
   snd_jack_new
@@ -355,13 +325,11 @@
   strncmp
   strncpy
   strscpy
-  strsep
   sync_file_create
   synchronize_rcu
   sysfs_create_group
   __sysfs_match_string
   sysfs_remove_group
-  sysfs_remove_link
   system_wq
   trace_event_buffer_commit
   trace_event_buffer_reserve
@@ -385,8 +353,6 @@
   unregister_netdevice_queue
   unregister_virtio_device
   unregister_virtio_driver
-  up_read
-  up_write
   usb_alloc_urb
   usb_anchor_urb
   usb_control_msg
@@ -396,7 +362,6 @@
   usb_register_driver
   usb_submit_urb
   usb_unanchor_urb
-  __usecs_to_jiffies
   usleep_range
   vabits_actual
   vfree
@@ -417,6 +382,7 @@
   virtqueue_kick
   virtqueue_kick_prepare
   virtqueue_notify
+  vmalloc
   vmalloc_to_page
   vring_create_virtqueue
   vring_del_virtqueue
@@ -457,10 +423,12 @@
   mmc_remove_host
   mmc_request_done
   mmc_send_tuning
+  of_get_property
   pinctrl_lookup_state
   pinctrl_pm_select_sleep_state
   pinctrl_select_default_state
   pinctrl_select_state
+  __pm_runtime_idle
   regulator_disable
   regulator_enable
   reset_control_assert
@@ -525,26 +493,9 @@
   netdev_master_upper_dev_link
   rtnl_is_locked
 
-# required by gnss-cmdline.ko
-  bus_find_device
-  device_find_child
-  device_match_name
-  platform_bus_type
-  strstr
-
-# required by gnss-serial.ko
-  gnss_allocate_device
-  gnss_deregister_device
-  gnss_insert_raw
-  gnss_put_device
-  gnss_register_device
-  serdev_device_close
-  serdev_device_open
-  serdev_device_set_baudrate
-  serdev_device_set_flow_control
-  serdev_device_wait_until_sent
-  serdev_device_write
-  serdev_device_write_wakeup
+# required by goldfish_address_space.ko
+  memremap
+  memunmap
 
 # required by goldfish_battery.ko
   power_supply_changed
@@ -584,12 +535,6 @@
   skb_queue_head
   skb_queue_purge
 
-# required by ledtrig-audio.ko
-  led_set_brightness_nosleep
-  led_trigger_event
-  led_trigger_register
-  led_trigger_unregister
-
 # required by lzo-rle.ko
   lzorle1x_1_compress
 
@@ -698,6 +643,7 @@
 # required by psmouse.ko
   bus_register_notifier
   bus_unregister_notifier
+  del_timer_sync
   device_add_groups
   device_create_file
   device_remove_file
@@ -718,6 +664,7 @@
   input_set_capability
   kstrtobool
   kstrtou8
+  mod_timer
   ps2_begin_command
   ps2_cmd_aborted
   ps2_command
@@ -731,6 +678,7 @@
   serio_rescan
   serio_unregister_child_port
   strcasecmp
+  strsep
 
 # required by pulse8-cec.ko
   cec_allocate_adapter
@@ -753,6 +701,7 @@
   rtc_update_irq
 
 # required by slcan.ko
+  capable
   hex_asc_upper
   hex_to_bin
   msleep_interruptible
@@ -763,7 +712,6 @@
 
 # required by snd-hda-codec-generic.ko
   _ctype
-  devm_led_classdev_register_ext
   snd_ctl_boolean_stereo_info
   strlcat
   __sw_hweight32
@@ -777,6 +725,8 @@
   get_device_system_crosststamp
   kvasprintf
   ns_to_timespec64
+  __pm_runtime_disable
+  pm_runtime_enable
   pm_runtime_forbid
   __printk_ratelimit
   regcache_mark_dirty
@@ -788,6 +738,7 @@
   snd_ctl_add_vmaster_hook
   snd_ctl_apply_vmaster_followers
   snd_ctl_boolean_mono_info
+  snd_ctl_enum_info
   snd_ctl_find_id
   snd_ctl_make_virtual_master
   snd_ctl_new1
@@ -811,11 +762,14 @@
   bus_unregister
   device_add
   device_del
+  device_initialize
+  dev_set_name
   kasprintf
   kobject_add
   kobject_create_and_add
   kobject_init
   kobject_put
+  krealloc
   pm_runtime_get_if_active
   __pm_runtime_set_status
   prepare_to_wait
@@ -834,6 +788,7 @@
   param_array_ops
   param_get_int
   param_ops_bint
+  param_ops_charp
   param_set_int
   pci_dev_put
   pci_disable_msi
@@ -863,38 +818,12 @@
   dma_sync_sg_for_cpu
   __sg_page_iter_next
   __sg_page_iter_start
-  vmalloc
   vmap
   vunmap
 
-# required by tpm.ko
-  alloc_chrdev_region
-  cdev_device_add
-  cdev_device_del
-  cdev_init
-  compat_only_sysfs_link_entry_to_kobj
-  devm_add_action
-  efi
-  efi_tpm_final_log_size
-  hash_digest_size
-  idr_get_next
-  idr_replace
-  jiffies_to_usecs
-  memchr_inv
-  of_property_match_string
-  pm_suspend_global_flags
-  securityfs_create_dir
-  securityfs_create_file
-  securityfs_remove
-  seq_open
-  seq_putc
-  seq_release
-  seq_write
-  unregister_chrdev_region
-
-# required by tpm_vtpm_proxy.ko
-  anon_inode_getfile
-  compat_ptr_ioctl
+# required by test_meminit.ko
+  kmem_cache_alloc_bulk
+  kmem_cache_free_bulk
 
 # required by usbip-core.ko
   iov_iter_kvec
@@ -911,10 +840,12 @@
   devres_free
   of_device_is_compatible
   of_find_compatible_node
+  of_find_property
   of_get_next_parent
   of_parse_phandle
   of_platform_populate
   of_root
+  __usecs_to_jiffies
 
 # required by vexpress-sysreg.ko
   bgpio_init
@@ -931,6 +862,7 @@
   platform_bus
   platform_device_add_data
   sockfd_lookup
+  sysfs_remove_link
   usb_add_hcd
   usb_create_hcd
   usb_create_shared_hcd
@@ -952,6 +884,8 @@
 # required by virt_wifi.ko
   cfg80211_connect_done
   cfg80211_disconnected
+  cfg80211_inform_bss_data
+  cfg80211_put_bss
   cfg80211_scan_done
   __dev_get_by_index
   dev_printk
@@ -964,9 +898,6 @@
   wiphy_register
   wiphy_unregister
 
-# required by virt_wifi_sim.ko
-  ieee80211_get_channel_khz
-
 # required by virtio-gpu.ko
   __devm_request_region
   dma_fence_match_context
@@ -1084,6 +1015,7 @@
   is_vmalloc_addr
   kmalloc_order_trace
   memdup_user
+  noop_llseek
   seq_puts
   sync_file_get_fence
   __traceiter_dma_fence_emit
@@ -1096,6 +1028,8 @@
   ww_mutex_unlock
 
 # required by virtio-rng.ko
+  hwrng_register
+  hwrng_unregister
   wait_for_completion_killable
 
 # required by virtio_blk.ko
@@ -1145,6 +1079,8 @@
   pipe_unlock
   __refrigerator
   __register_chrdev
+  seq_lseek
+  seq_read
   single_open
   single_release
   __splice_from_pipe
@@ -1153,6 +1089,7 @@
 
 # required by virtio_mmio.ko
   device_for_each_child
+  device_register
   devm_platform_ioremap_resource
   platform_device_register_full
 
@@ -1301,16 +1238,25 @@
   crypto_has_alg
   disk_end_io_acct
   disk_start_io_acct
+  down_read
+  down_write
   flush_dcache_page
   free_percpu
   fsync_bdev
+  idr_alloc
+  idr_destroy
   idr_find
   idr_for_each
+  idr_remove
+  __init_rwsem
   kstrtou16
+  kstrtoull
   memset64
   mutex_is_locked
   page_endio
   sysfs_streq
+  up_read
+  up_write
   vzalloc
 
 # required by zsmalloc.ko
diff --git a/android/gki_aarch64_modules b/android/gki_aarch64_modules
index e69de29bb2d1d..a6c3f332d9c3b 100644
--- a/android/gki_aarch64_modules
+++ b/android/gki_aarch64_modules
@@ -0,0 +1 @@
+lib/test_stackinit.ko
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 18a66d54c2b2a..f14d3312babad 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -701,4 +701,4 @@ CONFIG_TRACE_MMIO_ACCESS=y
 CONFIG_TRACEFS_DISABLE_AUTOMOUNT=y
 CONFIG_HIST_TRIGGERS=y
 CONFIG_PID_IN_CONTEXTIDR=y
-# CONFIG_RUNTIME_TESTING_MENU is not set
+CONFIG_TEST_STACKINIT=m
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 22d7961f02e9a..3e023e187be34 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -630,3 +630,4 @@ CONFIG_BUG_ON_DATA_CORRUPTION=y
 CONFIG_TRACEFS_DISABLE_AUTOMOUNT=y
 CONFIG_HIST_TRIGGERS=y
 CONFIG_UNWINDER_FRAME_POINTER=y
+CONFIG_TEST_STACKINIT=m
-- 
GitLab


From ee40594c95ae5a729d0c0685ce6e45505431be8d Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Thu, 22 Apr 2021 13:19:14 -0700
Subject: [PATCH 2794/4878] kbuild: Add $(KBUILD_HOSTLDFLAGS) to 'has_libelf'
 test

commit f634ca650f724347892068489c7920631a3aac6a upstream.

Normally, invocations of $(HOSTCC) include $(KBUILD_HOSTLDFLAGS), which
in turn includes $(HOSTLDFLAGS), which allows users to pass in their own
flags when linking. However, the 'has_libelf' test does not, meaning
that if a user requests a specific linker via HOSTLDFLAGS=-fuse-ld=...,
it is not respected and the build might error.

For example, if a user building with clang wants to use all of the LLVM
tools without any GNU tools, they might remove all of the GNU tools from
their system or PATH then build with

$ make HOSTLDFLAGS=-fuse-ld=lld LLVM=1 LLVM_IAS=1

which says use all of the LLVM tools, the integrated assembler, and
ld.lld for linking host executables. Without this change, the build will
error because $(HOSTCC) uses its default linker, rather than the one
requested via -fuse-ld=..., which is GNU ld in clang's case in a default
configuration.

error: Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please
install libelf-dev, libelf-devel or elfutils-libelf-devel
make[1]: *** [Makefile:1260: prepare-objtool] Error 1

Add $(KBUILD_HOSTLDFLAGS) to the 'has_libelf' test so that the linker
choice is respected.

Link: https://github.com/ClangBuiltLinux/linux/issues/479
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Cc: Paul Barker <paul.barker@sancloud.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a113a29545bdb..cdc95fe99a626 100644
--- a/Makefile
+++ b/Makefile
@@ -1073,7 +1073,7 @@ export mod_sign_cmd
 HOST_LIBELF_LIBS = $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)
 
 has_libelf = $(call try-run,\
-               echo "int main() {}" | $(HOSTCC) -xc -o /dev/null $(HOST_LIBELF_LIBS) -,1,0)
+               echo "int main() {}" | $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -xc -o /dev/null $(HOST_LIBELF_LIBS) -,1,0)
 
 ifdef CONFIG_STACK_VALIDATION
   ifeq ($(has_libelf),1)
-- 
GitLab


From 0084fefe2960b3a0c6482558272ee6372c75e3d4 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Mon, 17 Jan 2022 09:07:26 +1100
Subject: [PATCH 2795/4878] devtmpfs regression fix: reconfigure on each mount

commit a6097180d884ddab769fb25588ea8598589c218c upstream.

Prior to Linux v5.4 devtmpfs used mount_single() which treats the given
mount options as "remount" options, so it updates the configuration of
the single super_block on each mount.

Since that was changed, the mount options used for devtmpfs are ignored.
This is a regression which affect systemd - which mounts devtmpfs with
"-o mode=755,size=4m,nr_inodes=1m".

This patch restores the "remount" effect by calling reconfigure_single()

Fixes: d401727ea0d7 ("devtmpfs: don't mix {ramfs,shmem}_fill_super() with mount_single()")
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/devtmpfs.c    | 7 +++++++
 fs/super.c                 | 4 ++--
 include/linux/fs_context.h | 2 ++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index a71d141179439..b5cbaa61cbea7 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -59,8 +59,15 @@ static struct dentry *public_dev_mount(struct file_system_type *fs_type, int fla
 		      const char *dev_name, void *data)
 {
 	struct super_block *s = mnt->mnt_sb;
+	int err;
+
 	atomic_inc(&s->s_active);
 	down_write(&s->s_umount);
+	err = reconfigure_single(s, flags, data);
+	if (err < 0) {
+		deactivate_locked_super(s);
+		return ERR_PTR(err);
+	}
 	return dget(s->s_root);
 }
 
diff --git a/fs/super.c b/fs/super.c
index 98bb0629ee108..20f1707807bbd 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1472,8 +1472,8 @@ struct dentry *mount_nodev(struct file_system_type *fs_type,
 }
 EXPORT_SYMBOL(mount_nodev);
 
-static int reconfigure_single(struct super_block *s,
-			      int flags, void *data)
+int reconfigure_single(struct super_block *s,
+		       int flags, void *data)
 {
 	struct fs_context *fc;
 	int ret;
diff --git a/include/linux/fs_context.h b/include/linux/fs_context.h
index 5b44b0195a28a..e869ce3ae6600 100644
--- a/include/linux/fs_context.h
+++ b/include/linux/fs_context.h
@@ -140,6 +140,8 @@ extern int generic_parse_monolithic(struct fs_context *fc, void *data);
 extern int vfs_get_tree(struct fs_context *fc);
 extern void put_fs_context(struct fs_context *fc);
 extern void fc_drop_locked(struct fs_context *fc);
+int reconfigure_single(struct super_block *s,
+		       int flags, void *data);
 
 /*
  * sget() wrappers to be called from the ->get_tree() op.
-- 
GitLab


From 5d88e24b23af108a0527a31b62b5bc521488f2c4 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Mon, 27 Dec 2021 19:09:18 +0100
Subject: [PATCH 2796/4878] orangefs: Fix the size of a memory allocation in
 orangefs_bufmap_alloc()

commit 40a74870b2d1d3d44e13b3b73c6571dd34f5614d upstream.

'buffer_index_array' really looks like a bitmap. So it should be allocated
as such.
When kzalloc is called, a number of bytes is expected, but a number of
longs is passed instead.

In get(), if not enough memory is allocated, un-allocated memory may be
read or written.

So use bitmap_zalloc() to safely allocate the correct memory size and
avoid un-expected behavior.

While at it, change the corresponding kfree() into bitmap_free() to keep
the semantic.

Fixes: ea2c9c9f6574 ("orangefs: bufmap rewrite")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/orangefs/orangefs-bufmap.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/orangefs/orangefs-bufmap.c b/fs/orangefs/orangefs-bufmap.c
index 538e839590ef5..b501dc07f9222 100644
--- a/fs/orangefs/orangefs-bufmap.c
+++ b/fs/orangefs/orangefs-bufmap.c
@@ -176,7 +176,7 @@ orangefs_bufmap_free(struct orangefs_bufmap *bufmap)
 {
 	kfree(bufmap->page_array);
 	kfree(bufmap->desc_array);
-	kfree(bufmap->buffer_index_array);
+	bitmap_free(bufmap->buffer_index_array);
 	kfree(bufmap);
 }
 
@@ -226,8 +226,7 @@ orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
 	bufmap->desc_size = user_desc->size;
 	bufmap->desc_shift = ilog2(bufmap->desc_size);
 
-	bufmap->buffer_index_array =
-		kzalloc(DIV_ROUND_UP(bufmap->desc_count, BITS_PER_LONG), GFP_KERNEL);
+	bufmap->buffer_index_array = bitmap_zalloc(bufmap->desc_count, GFP_KERNEL);
 	if (!bufmap->buffer_index_array)
 		goto out_free_bufmap;
 
@@ -250,7 +249,7 @@ orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
 out_free_desc_array:
 	kfree(bufmap->desc_array);
 out_free_index_array:
-	kfree(bufmap->buffer_index_array);
+	bitmap_free(bufmap->buffer_index_array);
 out_free_bufmap:
 	kfree(bufmap);
 out:
-- 
GitLab


From c5f38277163ecfbc0d8903694ac4bf071119726a Mon Sep 17 00:00:00 2001
From: Stephen Boyd <swboyd@chromium.org>
Date: Tue, 16 Nov 2021 22:54:54 -0800
Subject: [PATCH 2797/4878] remoteproc: qcom: pil_info: Don't memcpy_toio more
 than is provided

commit fdc12231d885119cc2e2b4f3e0fbba3155f37a56 upstream.

If the string passed into qcom_pil_info_store() isn't as long as
PIL_RELOC_NAME_LEN we'll try to copy the string assuming the length is
PIL_RELOC_NAME_LEN to the io space and go beyond the bounds of the
string. Let's only copy as many byes as the string is long, ignoring the
NUL terminator.

This fixes the following KASAN error:

 BUG: KASAN: global-out-of-bounds in __memcpy_toio+0x124/0x140
 Read of size 1 at addr ffffffd35086e386 by task rmtfs/2392

 CPU: 2 PID: 2392 Comm: rmtfs Tainted: G        W         5.16.0-rc1-lockdep+ #10
 Hardware name: Google Lazor (rev3+) with KB Backlight (DT)
 Call trace:
  dump_backtrace+0x0/0x410
  show_stack+0x24/0x30
  dump_stack_lvl+0x7c/0xa0
  print_address_description+0x78/0x2bc
  kasan_report+0x160/0x1a0
  __asan_report_load1_noabort+0x44/0x50
  __memcpy_toio+0x124/0x140
  qcom_pil_info_store+0x298/0x358 [qcom_pil_info]
  q6v5_start+0xdf0/0x12e0 [qcom_q6v5_mss]
  rproc_start+0x178/0x3a0
  rproc_boot+0x5f0/0xb90
  state_store+0x78/0x1bc
  dev_attr_store+0x70/0x90
  sysfs_kf_write+0xf4/0x118
  kernfs_fop_write_iter+0x208/0x300
  vfs_write+0x55c/0x804
  ksys_pwrite64+0xc8/0x134
  __arm64_compat_sys_aarch32_pwrite64+0xc4/0xdc
  invoke_syscall+0x78/0x20c
  el0_svc_common+0x11c/0x1f0
  do_el0_svc_compat+0x50/0x60
  el0_svc_compat+0x5c/0xec
  el0t_32_sync_handler+0xc0/0xf0
  el0t_32_sync+0x1a4/0x1a8

 The buggy address belongs to the variable:
  .str.59+0x6/0xffffffffffffec80 [qcom_q6v5_mss]

 Memory state around the buggy address:
  ffffffd35086e280: 00 00 00 00 02 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
  ffffffd35086e300: 00 02 f9 f9 f9 f9 f9 f9 00 00 00 06 f9 f9 f9 f9
 >ffffffd35086e380: 06 f9 f9 f9 05 f9 f9 f9 00 00 00 00 00 06 f9 f9
                    ^
  ffffffd35086e400: f9 f9 f9 f9 01 f9 f9 f9 04 f9 f9 f9 00 00 01 f9
  ffffffd35086e480: f9 f9 f9 f9 00 00 00 00 00 00 00 01 f9 f9 f9 f9

Fixes: 549b67da660d ("remoteproc: qcom: Introduce helper to store pil info in IMEM")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211117065454.4142936-1-swboyd@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/remoteproc/qcom_pil_info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/qcom_pil_info.c b/drivers/remoteproc/qcom_pil_info.c
index 7c007dd7b2000..aca21560e20b8 100644
--- a/drivers/remoteproc/qcom_pil_info.c
+++ b/drivers/remoteproc/qcom_pil_info.c
@@ -104,7 +104,7 @@ int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size)
 	return -ENOMEM;
 
 found_unused:
-	memcpy_toio(entry, image, PIL_RELOC_NAME_LEN);
+	memcpy_toio(entry, image, strnlen(image, PIL_RELOC_NAME_LEN));
 found_existing:
 	/* Use two writel() as base is only aligned to 4 bytes on odd entries */
 	writel(base, entry + PIL_RELOC_NAME_LEN);
-- 
GitLab


From eadde287a62e66b2f9e62d007c59a8f50d4b8413 Mon Sep 17 00:00:00 2001
From: Jamie Hill-Daniel <jamie@hill-daniel.co.uk>
Date: Tue, 18 Jan 2022 08:06:04 +0100
Subject: [PATCH 2798/4878] vfs: fs_context: fix up param length parsing in
 legacy_parse_param

commit 722d94847de29310e8aa03fcbdb41fc92c521756 upstream.

The "PAGE_SIZE - 2 - size" calculation in legacy_parse_param() is an
unsigned type so a large value of "size" results in a high positive
value instead of a negative value as expected.  Fix this by getting rid
of the subtraction.

Signed-off-by: Jamie Hill-Daniel <jamie@hill-daniel.co.uk>
Signed-off-by: William Liu <willsroot@protonmail.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fs_context.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fs_context.c b/fs/fs_context.c
index 2834d1afa6e80..b11677802ee13 100644
--- a/fs/fs_context.c
+++ b/fs/fs_context.c
@@ -530,7 +530,7 @@ static int legacy_parse_param(struct fs_context *fc, struct fs_parameter *param)
 			      param->key);
 	}
 
-	if (len > PAGE_SIZE - 2 - size)
+	if (size + len + 2 > PAGE_SIZE)
 		return invalf(fc, "VFS: Legacy: Cumulative options too large");
 	if (strchr(param->key, ',') ||
 	    (param->type == fs_value_is_string &&
-- 
GitLab


From 723acd75a062f7630ed9149733a47d4158f5dbdf Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 11 Nov 2021 02:07:22 +0000
Subject: [PATCH 2799/4878] perf: Protect perf_guest_cbs with RCU

commit ff083a2d972f56bebfd82409ca62e5dfce950961 upstream.

Protect perf_guest_cbs with RCU to fix multiple possible errors.  Luckily,
all paths that read perf_guest_cbs already require RCU protection, e.g. to
protect the callback chains, so only the direct perf_guest_cbs touchpoints
need to be modified.

Bug #1 is a simple lack of WRITE_ONCE/READ_ONCE behavior to ensure
perf_guest_cbs isn't reloaded between a !NULL check and a dereference.
Fixed via the READ_ONCE() in rcu_dereference().

Bug #2 is that on weakly-ordered architectures, updates to the callbacks
themselves are not guaranteed to be visible before the pointer is made
visible to readers.  Fixed by the smp_store_release() in
rcu_assign_pointer() when the new pointer is non-NULL.

Bug #3 is that, because the callbacks are global, it's possible for
readers to run in parallel with an unregisters, and thus a module
implementing the callbacks can be unloaded while readers are in flight,
resulting in a use-after-free.  Fixed by a synchronize_rcu() call when
unregistering callbacks.

Bug #1 escaped notice because it's extremely unlikely a compiler will
reload perf_guest_cbs in this sequence.  perf_guest_cbs does get reloaded
for future derefs, e.g. for ->is_user_mode(), but the ->is_in_guest()
guard all but guarantees the consumer will win the race, e.g. to nullify
perf_guest_cbs, KVM has to completely exit the guest and teardown down
all VMs before KVM start its module unload / unregister sequence.  This
also makes it all but impossible to encounter bug #3.

Bug #2 has not been a problem because all architectures that register
callbacks are strongly ordered and/or have a static set of callbacks.

But with help, unloading kvm_intel can trigger bug #1 e.g. wrapping
perf_guest_cbs with READ_ONCE in perf_misc_flags() while spamming
kvm_intel module load/unload leads to:

  BUG: kernel NULL pointer dereference, address: 0000000000000000
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP
  CPU: 6 PID: 1825 Comm: stress Not tainted 5.14.0-rc2+ #459
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
  RIP: 0010:perf_misc_flags+0x1c/0x70
  Call Trace:
   perf_prepare_sample+0x53/0x6b0
   perf_event_output_forward+0x67/0x160
   __perf_event_overflow+0x52/0xf0
   handle_pmi_common+0x207/0x300
   intel_pmu_handle_irq+0xcf/0x410
   perf_event_nmi_handler+0x28/0x50
   nmi_handle+0xc7/0x260
   default_do_nmi+0x6b/0x170
   exc_nmi+0x103/0x130
   asm_exc_nmi+0x76/0xbf

Fixes: 39447b386c84 ("perf: Enhance perf to allow for guest statistic collection from host")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211111020738.2512932-2-seanjc@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/perf_callchain.c   | 17 +++++++++++------
 arch/arm64/kernel/perf_callchain.c | 18 ++++++++++++------
 arch/csky/kernel/perf_callchain.c  |  6 ++++--
 arch/nds32/kernel/perf_event_cpu.c | 17 +++++++++++------
 arch/riscv/kernel/perf_callchain.c |  7 +++++--
 arch/x86/events/core.c             | 17 +++++++++++------
 arch/x86/events/intel/core.c       |  9 ++++++---
 include/linux/perf_event.h         | 13 ++++++++++++-
 kernel/events/core.c               | 13 ++++++++++---
 9 files changed, 82 insertions(+), 35 deletions(-)

diff --git a/arch/arm/kernel/perf_callchain.c b/arch/arm/kernel/perf_callchain.c
index 3b69a76d341e7..1626dfc6f6ce6 100644
--- a/arch/arm/kernel/perf_callchain.c
+++ b/arch/arm/kernel/perf_callchain.c
@@ -62,9 +62,10 @@ user_backtrace(struct frame_tail __user *tail,
 void
 perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct frame_tail __user *tail;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -98,9 +99,10 @@ callchain_trace(struct stackframe *fr,
 void
 perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe fr;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -111,18 +113,21 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return instruction_pointer(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git a/arch/arm64/kernel/perf_callchain.c b/arch/arm64/kernel/perf_callchain.c
index 88ff471b0bce5..58ae55d78a203 100644
--- a/arch/arm64/kernel/perf_callchain.c
+++ b/arch/arm64/kernel/perf_callchain.c
@@ -102,7 +102,9 @@ compat_user_backtrace(struct compat_frame_tail __user *tail,
 void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 			 struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -147,9 +149,10 @@ static bool callchain_trace(void *data, unsigned long pc)
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 			   struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe frame;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -160,18 +163,21 @@ void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return instruction_pointer(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git a/arch/csky/kernel/perf_callchain.c b/arch/csky/kernel/perf_callchain.c
index ab55e98ee8f62..35318a635a5fa 100644
--- a/arch/csky/kernel/perf_callchain.c
+++ b/arch/csky/kernel/perf_callchain.c
@@ -86,10 +86,11 @@ static unsigned long user_backtrace(struct perf_callchain_entry_ctx *entry,
 void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 			 struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	unsigned long fp = 0;
 
 	/* C-SKY does not support virtualization. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
+	if (guest_cbs && guest_cbs->is_in_guest())
 		return;
 
 	fp = regs->regs[4];
@@ -110,10 +111,11 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 			   struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe fr;
 
 	/* C-SKY does not support virtualization. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		pr_warn("C-SKY does not support perf in guest mode!");
 		return;
 	}
diff --git a/arch/nds32/kernel/perf_event_cpu.c b/arch/nds32/kernel/perf_event_cpu.c
index 0ce6f9f307e6a..f387919607813 100644
--- a/arch/nds32/kernel/perf_event_cpu.c
+++ b/arch/nds32/kernel/perf_event_cpu.c
@@ -1363,6 +1363,7 @@ void
 perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 		    struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	unsigned long fp = 0;
 	unsigned long gp = 0;
 	unsigned long lp = 0;
@@ -1371,7 +1372,7 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 
 	leaf_fp = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -1479,9 +1480,10 @@ void
 perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 		      struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe fr;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -1493,20 +1495,23 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
 	/* However, NDS32 does not support virtualization */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return instruction_pointer(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
 	/* However, NDS32 does not support virtualization */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git a/arch/riscv/kernel/perf_callchain.c b/arch/riscv/kernel/perf_callchain.c
index cf190197a22f6..ad3001cbdf618 100644
--- a/arch/riscv/kernel/perf_callchain.c
+++ b/arch/riscv/kernel/perf_callchain.c
@@ -60,10 +60,11 @@ static unsigned long user_backtrace(struct perf_callchain_entry_ctx *entry,
 void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 			 struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	unsigned long fp = 0;
 
 	/* RISC-V does not support perf in guest mode. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
+	if (guest_cbs && guest_cbs->is_in_guest())
 		return;
 
 	fp = regs->s0;
@@ -84,8 +85,10 @@ void notrace walk_stackframe(struct task_struct *task,
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 			   struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
 	/* RISC-V does not support perf in guest mode. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		pr_warn("RISC-V does not support perf in guest mode!");
 		return;
 	}
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 1f5d96ba4866d..b79b9f21cbb3b 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2545,10 +2545,11 @@ static bool perf_hw_regs(struct pt_regs *regs)
 void
 perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct unwind_state state;
 	unsigned long addr;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* TODO: We don't support guest os callchain now */
 		return;
 	}
@@ -2648,10 +2649,11 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *ent
 void
 perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stack_frame frame;
 	const struct stack_frame __user *fp;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* TODO: We don't support guest os callchain now */
 		return;
 	}
@@ -2728,18 +2730,21 @@ static unsigned long code_segment_base(struct pt_regs *regs)
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return regs->ip + code_segment_base(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index a521135247eb6..6525693e7aeaa 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2586,6 +2586,7 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
 {
 	struct perf_sample_data data;
 	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+	struct perf_guest_info_callbacks *guest_cbs;
 	int bit;
 	int handled = 0;
 
@@ -2651,9 +2652,11 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
 	 */
 	if (__test_and_clear_bit(GLOBAL_STATUS_TRACE_TOPAPMI_BIT, (unsigned long *)&status)) {
 		handled++;
-		if (unlikely(perf_guest_cbs && perf_guest_cbs->is_in_guest() &&
-			perf_guest_cbs->handle_intel_pt_intr))
-			perf_guest_cbs->handle_intel_pt_intr();
+
+		guest_cbs = perf_get_guest_cbs();
+		if (unlikely(guest_cbs && guest_cbs->is_in_guest() &&
+			     guest_cbs->handle_intel_pt_intr))
+			guest_cbs->handle_intel_pt_intr();
 		else
 			intel_pt_interrupt();
 	}
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index ce14fb2772b5b..c94551091dad3 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1235,7 +1235,18 @@ extern void perf_event_bpf_event(struct bpf_prog *prog,
 				 enum perf_bpf_event_type type,
 				 u16 flags);
 
-extern struct perf_guest_info_callbacks *perf_guest_cbs;
+extern struct perf_guest_info_callbacks __rcu *perf_guest_cbs;
+static inline struct perf_guest_info_callbacks *perf_get_guest_cbs(void)
+{
+	/*
+	 * Callbacks are RCU-protected and must be READ_ONCE to avoid reloading
+	 * the callbacks between a !NULL check and dereferences, to ensure
+	 * pending stores/changes to the callback pointers are visible before a
+	 * non-NULL perf_guest_cbs is visible to readers, and to prevent a
+	 * module from unloading callbacks while readers are active.
+	 */
+	return rcu_dereference(perf_guest_cbs);
+}
 extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
 extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
 
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 639b99a318db1..e2d774cc470ee 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6395,18 +6395,25 @@ static void perf_pending_event(struct irq_work *entry)
  * Later on, we might change it to a list if there is
  * another virtualization implementation supporting the callbacks.
  */
-struct perf_guest_info_callbacks *perf_guest_cbs;
+struct perf_guest_info_callbacks __rcu *perf_guest_cbs;
 
 int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)
 {
-	perf_guest_cbs = cbs;
+	if (WARN_ON_ONCE(rcu_access_pointer(perf_guest_cbs)))
+		return -EBUSY;
+
+	rcu_assign_pointer(perf_guest_cbs, cbs);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(perf_register_guest_info_callbacks);
 
 int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)
 {
-	perf_guest_cbs = NULL;
+	if (WARN_ON_ONCE(rcu_access_pointer(perf_guest_cbs) != cbs))
+		return -EINVAL;
+
+	rcu_assign_pointer(perf_guest_cbs, NULL);
+	synchronize_rcu();
 	return 0;
 }
 EXPORT_SYMBOL_GPL(perf_unregister_guest_info_callbacks);
-- 
GitLab


From 413b427f5fff5d658c2605ca889d6b13b88efd0c Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 11 Nov 2021 02:07:24 +0000
Subject: [PATCH 2800/4878] KVM: x86: Register Processor Trace interrupt hook
 iff PT enabled in guest

commit f4b027c5c8199abd4fb6f00d67d380548dbfdfa8 upstream.

Override the Processor Trace (PT) interrupt handler for guest mode if and
only if PT is configured for host+guest mode, i.e. is being used
independently by both host and guest.  If PT is configured for system
mode, the host fully controls PT and must handle all events.

Fixes: 8479e04e7d6b ("KVM: x86: Inject PMI for KVM guest")
Reported-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reported-by: Artem Kashkanov <artem.kashkanov@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211111020738.2512932-4-seanjc@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/kvm_host.h | 1 +
 arch/x86/kvm/vmx/vmx.c          | 1 +
 arch/x86/kvm/x86.c              | 5 ++++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index e8fb4b0394af2..13e10b970ac83 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1306,6 +1306,7 @@ struct kvm_x86_init_ops {
 	int (*disabled_by_bios)(void);
 	int (*check_processor_compatibility)(void);
 	int (*hardware_setup)(void);
+	bool (*intel_pt_intr_in_guest)(void);
 
 	struct kvm_x86_ops *runtime_ops;
 };
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 38c453f28f1f0..351ef5cf1436a 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7915,6 +7915,7 @@ static struct kvm_x86_init_ops vmx_init_ops __initdata = {
 	.disabled_by_bios = vmx_disabled_by_bios,
 	.check_processor_compatibility = vmx_check_processor_compat,
 	.hardware_setup = hardware_setup,
+	.intel_pt_intr_in_guest = vmx_pt_mode_is_host_guest,
 
 	.runtime_ops = &vmx_x86_ops,
 };
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4f828cac0273e..879f743f7ff1e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7882,7 +7882,7 @@ static struct perf_guest_info_callbacks kvm_guest_cbs = {
 	.is_in_guest		= kvm_is_in_guest,
 	.is_user_mode		= kvm_is_user_mode,
 	.get_guest_ip		= kvm_get_guest_ip,
-	.handle_intel_pt_intr	= kvm_handle_intel_pt_intr,
+	.handle_intel_pt_intr	= NULL,
 };
 
 #ifdef CONFIG_X86_64
@@ -8005,6 +8005,8 @@ int kvm_arch_init(void *opaque)
 			PT_PRESENT_MASK, 0, sme_me_mask);
 	kvm_timer_init();
 
+	if (ops->intel_pt_intr_in_guest && ops->intel_pt_intr_in_guest())
+		kvm_guest_cbs.handle_intel_pt_intr = kvm_handle_intel_pt_intr;
 	perf_register_guest_info_callbacks(&kvm_guest_cbs);
 
 	if (boot_cpu_has(X86_FEATURE_XSAVE)) {
@@ -8042,6 +8044,7 @@ void kvm_arch_exit(void)
 #endif
 	kvm_lapic_exit();
 	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);
+	kvm_guest_cbs.handle_intel_pt_intr = NULL;
 
 	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
 		cpufreq_unregister_notifier(&kvmclock_cpufreq_notifier_block,
-- 
GitLab


From 0e6c0f3f4055253d69292d8bd21f09d6ca3d9698 Mon Sep 17 00:00:00 2001
From: Eric Farman <farman@linux.ibm.com>
Date: Mon, 13 Dec 2021 22:05:50 +0100
Subject: [PATCH 2801/4878] KVM: s390: Clarify SIGP orders versus STOP/RESTART

commit 812de04661c4daa7ac385c0dfd62594540538034 upstream.

With KVM_CAP_S390_USER_SIGP, there are only five Signal Processor
orders (CONDITIONAL EMERGENCY SIGNAL, EMERGENCY SIGNAL, EXTERNAL CALL,
SENSE, and SENSE RUNNING STATUS) which are intended for frequent use
and thus are processed in-kernel. The remainder are sent to userspace
with the KVM_CAP_S390_USER_SIGP capability. Of those, three orders
(RESTART, STOP, and STOP AND STORE STATUS) have the potential to
inject work back into the kernel, and thus are asynchronous.

Let's look for those pending IRQs when processing one of the in-kernel
SIGP orders, and return BUSY (CC2) if one is in process. This is in
agreement with the Principles of Operation, which states that only one
order can be "active" on a CPU at a time.

Cc: stable@vger.kernel.org
Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20211213210550.856213-2-farman@linux.ibm.com
[borntraeger@linux.ibm.com: add stable tag]
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/kvm/interrupt.c |  7 +++++++
 arch/s390/kvm/kvm-s390.c  |  9 +++++++--
 arch/s390/kvm/kvm-s390.h  |  1 +
 arch/s390/kvm/sigp.c      | 28 ++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index e6c4f29fc6956..b51ab19eb9721 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -2115,6 +2115,13 @@ int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu)
 	return test_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs);
 }
 
+int kvm_s390_is_restart_irq_pending(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+
+	return test_bit(IRQ_PEND_RESTART, &li->pending_irqs);
+}
+
 void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 00f03f363c9b0..07a04f3926009 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -4588,10 +4588,15 @@ int kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu)
 		}
 	}
 
-	/* SIGP STOP and SIGP STOP AND STORE STATUS has been fully processed */
+	/*
+	 * Set the VCPU to STOPPED and THEN clear the interrupt flag,
+	 * now that the SIGP STOP and SIGP STOP AND STORE STATUS orders
+	 * have been fully processed. This will ensure that the VCPU
+	 * is kept BUSY if another VCPU is inquiring with SIGP SENSE.
+	 */
+	kvm_s390_set_cpuflags(vcpu, CPUSTAT_STOPPED);
 	kvm_s390_clear_stop_irq(vcpu);
 
-	kvm_s390_set_cpuflags(vcpu, CPUSTAT_STOPPED);
 	__disable_ibs_on_vcpu(vcpu);
 
 	for (i = 0; i < online_vcpus; i++) {
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 2d134833bca69..a3e9b71d426f9 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -418,6 +418,7 @@ void kvm_s390_destroy_adapters(struct kvm *kvm);
 int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu);
 extern struct kvm_device_ops kvm_flic_ops;
 int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu);
+int kvm_s390_is_restart_irq_pending(struct kvm_vcpu *vcpu);
 void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu);
 int kvm_s390_set_irq_state(struct kvm_vcpu *vcpu,
 			   void __user *buf, int len);
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 683036c1c92a8..3dc921e853b6e 100644
--- a/arch/s390/kvm/sigp.c
+++ b/arch/s390/kvm/sigp.c
@@ -288,6 +288,34 @@ static int handle_sigp_dst(struct kvm_vcpu *vcpu, u8 order_code,
 	if (!dst_vcpu)
 		return SIGP_CC_NOT_OPERATIONAL;
 
+	/*
+	 * SIGP RESTART, SIGP STOP, and SIGP STOP AND STORE STATUS orders
+	 * are processed asynchronously. Until the affected VCPU finishes
+	 * its work and calls back into KVM to clear the (RESTART or STOP)
+	 * interrupt, we need to return any new non-reset orders "busy".
+	 *
+	 * This is important because a single VCPU could issue:
+	 *  1) SIGP STOP $DESTINATION
+	 *  2) SIGP SENSE $DESTINATION
+	 *
+	 * If the SIGP SENSE would not be rejected as "busy", it could
+	 * return an incorrect answer as to whether the VCPU is STOPPED
+	 * or OPERATING.
+	 */
+	if (order_code != SIGP_INITIAL_CPU_RESET &&
+	    order_code != SIGP_CPU_RESET) {
+		/*
+		 * Lockless check. Both SIGP STOP and SIGP (RE)START
+		 * properly synchronize everything while processing
+		 * their orders, while the guest cannot observe a
+		 * difference when issuing other orders from two
+		 * different VCPUs.
+		 */
+		if (kvm_s390_is_stop_irq_pending(dst_vcpu) ||
+		    kvm_s390_is_restart_irq_pending(dst_vcpu))
+			return SIGP_CC_BUSY;
+	}
+
 	switch (order_code) {
 	case SIGP_SENSE:
 		vcpu->stat.instruction_sigp_sense++;
-- 
GitLab


From 161e43ab8cc1017187188f5e9380ea080685b4da Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Mon, 29 Nov 2021 12:44:34 +0100
Subject: [PATCH 2802/4878] 9p: only copy valid iattrs in 9P2000.L setattr
 implementation

commit 3cb6ee991496b67ee284c6895a0ba007e2d7bac3 upstream.

The 9P2000.L setattr method v9fs_vfs_setattr_dotl() copies struct iattr
values without checking whether they are valid causing unitialized
values to be copied. The 9P2000 setattr method v9fs_vfs_setattr() method
gets this right. Check whether struct iattr fields are valid first
before copying in v9fs_vfs_setattr_dotl() too and make sure that all
other fields are set to 0 apart from {g,u}id which should be set to
INVALID_{G,U}ID. This ensure that they can be safely sent over the wire
or printed for debugging later on.

Link: https://lkml.kernel.org/r/20211129114434.3637938-1-brauner@kernel.org
Link: https://lkml.kernel.org/r/000000000000a0d53f05d1c72a4c%40google.com
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: stable@kernel.org
Cc: v9fs-developer@lists.sourceforge.net
Reported-by: syzbot+dfac92a50024b54acaa4@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
[Dominique: do not set a/mtime with just ATTR_A/MTIME as discussed]
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/9p/vfs_inode_dotl.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 72b67d810b8c2..a13ef836fe4e1 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -541,7 +541,10 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 {
 	int retval;
 	struct p9_fid *fid = NULL;
-	struct p9_iattr_dotl p9attr;
+	struct p9_iattr_dotl p9attr = {
+		.uid = INVALID_UID,
+		.gid = INVALID_GID,
+	};
 	struct inode *inode = d_inode(dentry);
 
 	p9_debug(P9_DEBUG_VFS, "\n");
@@ -551,14 +554,22 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 		return retval;
 
 	p9attr.valid = v9fs_mapped_iattr_valid(iattr->ia_valid);
-	p9attr.mode = iattr->ia_mode;
-	p9attr.uid = iattr->ia_uid;
-	p9attr.gid = iattr->ia_gid;
-	p9attr.size = iattr->ia_size;
-	p9attr.atime_sec = iattr->ia_atime.tv_sec;
-	p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
-	p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
-	p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+	if (iattr->ia_valid & ATTR_MODE)
+		p9attr.mode = iattr->ia_mode;
+	if (iattr->ia_valid & ATTR_UID)
+		p9attr.uid = iattr->ia_uid;
+	if (iattr->ia_valid & ATTR_GID)
+		p9attr.gid = iattr->ia_gid;
+	if (iattr->ia_valid & ATTR_SIZE)
+		p9attr.size = iattr->ia_size;
+	if (iattr->ia_valid & ATTR_ATIME_SET) {
+		p9attr.atime_sec = iattr->ia_atime.tv_sec;
+		p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
+	}
+	if (iattr->ia_valid & ATTR_MTIME_SET) {
+		p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
+		p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+	}
 
 	if (iattr->ia_valid & ATTR_FILE) {
 		fid = iattr->ia_file->private_data;
-- 
GitLab


From 4c3f70be6f3a91623f307df8fd6f2a81f0db36dc Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Mon, 10 Jan 2022 10:56:25 +0100
Subject: [PATCH 2803/4878] video: vga16fb: Only probe for EGA and VGA 16 color
 graphic cards

commit 0499f419b76f94ede08304aad5851144813ac55c upstream.

The vga16fb framebuffer driver only supports Enhanced Graphics Adapter
(EGA) and Video Graphics Array (VGA) 16 color graphic cards.

But it doesn't check if the adapter is one of those or if a VGA16 mode
is used. This means that the driver will be probed even if a VESA BIOS
Extensions (VBE) or Graphics Output Protocol (GOP) interface is used.

This issue has been present for a long time but it was only exposed by
commit d391c5827107 ("drivers/firmware: move x86 Generic System
Framebuffers support") since the platform device registration to match
the {vesa,efi}fb drivers is done later as a consequence of that change.

All non-x86 architectures though treat orig_video_isVGA as a boolean so
only do the supported video mode check for x86 and not for other arches.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215001
Fixes: d391c5827107 ("drivers/firmware: move x86 Generic System Framebuffers support")
Reported-by: Kris Karas <bugs-a21@moonlit-rail.com>
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Kris Karas <bugs-a21@moonlit-rail.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220110095625.278836-3-javierm@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/fbdev/vga16fb.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c
index 1e8a38a7967d8..5c6e9dc88060b 100644
--- a/drivers/video/fbdev/vga16fb.c
+++ b/drivers/video/fbdev/vga16fb.c
@@ -184,6 +184,25 @@ static inline void setindex(int index)
 	vga_io_w(VGA_GFX_I, index);
 }
 
+/* Check if the video mode is supported by the driver */
+static inline int check_mode_supported(void)
+{
+	/* non-x86 architectures treat orig_video_isVGA as a boolean flag */
+#if defined(CONFIG_X86)
+	/* only EGA and VGA in 16 color graphic mode are supported */
+	if (screen_info.orig_video_isVGA != VIDEO_TYPE_EGAC &&
+	    screen_info.orig_video_isVGA != VIDEO_TYPE_VGAC)
+		return -ENODEV;
+
+	if (screen_info.orig_video_mode != 0x0D &&	/* 320x200/4 (EGA) */
+	    screen_info.orig_video_mode != 0x0E &&	/* 640x200/4 (EGA) */
+	    screen_info.orig_video_mode != 0x10 &&	/* 640x350/4 (EGA) */
+	    screen_info.orig_video_mode != 0x12)	/* 640x480/4 (VGA) */
+		return -ENODEV;
+#endif
+	return 0;
+}
+
 static void vga16fb_pan_var(struct fb_info *info, 
 			    struct fb_var_screeninfo *var)
 {
@@ -1422,6 +1441,11 @@ static int __init vga16fb_init(void)
 
 	vga16fb_setup(option);
 #endif
+
+	ret = check_mode_supported();
+	if (ret)
+		return ret;
+
 	ret = platform_driver_register(&vga16fb_driver);
 
 	if (!ret) {
-- 
GitLab


From 93c4506f9f8bd607a7d8fb06e6292080f980e6b1 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 26 Oct 2021 11:55:11 +0200
Subject: [PATCH 2804/4878] media: uvcvideo: fix division by zero at stream
 start

commit 8aa637bf6d70d2fb2ad4d708d8b9dd02b1c095df upstream.

Add the missing bulk-endpoint max-packet sanity check to
uvc_video_start_transfer() to avoid division by zero in
uvc_alloc_urb_buffers() in case a malicious device has broken
descriptors (or when doing descriptor fuzz testing).

Note that USB core will reject URBs submitted for endpoints with zero
wMaxPacketSize but that drivers doing packet-size calculations still
need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip
endpoint descriptors with maxpacket=0")).

Fixes: c0efd232929c ("V4L/DVB (8145a): USB Video Class driver")
Cc: stable@vger.kernel.org      # 2.6.26
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/uvc/uvc_video.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index b8477fa93b7d7..f6373d678d256 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -1915,6 +1915,10 @@ static int uvc_video_start_transfer(struct uvc_streaming *stream,
 		if (ep == NULL)
 			return -EIO;
 
+		/* Reject broken descriptors. */
+		if (usb_endpoint_maxp(&ep->desc) == 0)
+			return -EIO;
+
 		ret = uvc_init_video_bulk(stream, ep, gfp_flags);
 	}
 
-- 
GitLab


From 358a4b054abeb3d48094221138c0adaf3285710a Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 15 Dec 2021 11:11:05 -0600
Subject: [PATCH 2805/4878] rtlwifi: rtl8192cu: Fix WARNING when calling
 local_irq_restore() with interrupts enabled

commit 8b144dedb928e4e2f433a328d58f44c3c098d63e upstream.

Syzbot reports the following WARNING:

[200~raw_local_irq_restore() called with IRQs enabled
WARNING: CPU: 1 PID: 1206 at kernel/locking/irqflag-debug.c:10
   warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10

Hardware initialization for the rtl8188cu can run for as long as 350 ms,
and the routine may be called with interrupts disabled. To avoid locking
the machine for this long, the current routine saves the interrupt flags
and enables local interrupts. The problem is that it restores the flags
at the end without disabling local interrupts first.

This patch fixes commit a53268be0cb9 ("rtlwifi: rtl8192cu: Fix too long
disable of IRQs").

Reported-by: syzbot+cce1ee31614c171f5595@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Fixes: a53268be0cb9 ("rtlwifi: rtl8192cu: Fix too long disable of IRQs")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211215171105.20623-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
index 6312fddd9c00a..eaba661133280 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
@@ -1000,6 +1000,7 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
 	_initpabias(hw);
 	rtl92c_dm_init(hw);
 exit:
+	local_irq_disable();
 	local_irq_restore(flags);
 	return err;
 }
-- 
GitLab


From ff9588cf1592c4c8c83ff7ad30cc355a54da344f Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 1 Dec 2021 14:25:27 +0100
Subject: [PATCH 2806/4878] firmware: qemu_fw_cfg: fix sysfs information leak

commit 1b656e9aad7f4886ed466094d1dc5ee4dd900d20 upstream.

Make sure to always NUL-terminate file names retrieved from the firmware
to avoid accessing data beyond the entry slab buffer and exposing it
through sysfs in case the firmware data is corrupt.

Fixes: 75f3e8e47f38 ("firmware: introduce sysfs driver for QEMU's fw_cfg device")
Cc: stable@vger.kernel.org      # 4.6
Cc: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211201132528.30025-4-johan@kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/qemu_fw_cfg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 172c751a4f6c2..b41fac36ce9e2 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -601,7 +601,7 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
 	/* set file entry information */
 	entry->size = be32_to_cpu(f->size);
 	entry->select = be16_to_cpu(f->select);
-	memcpy(entry->name, f->name, FW_CFG_MAX_FILE_PATH);
+	strscpy(entry->name, f->name, FW_CFG_MAX_FILE_PATH);
 
 	/* register entry under "/sys/firmware/qemu_fw_cfg/by_key/" */
 	err = kobject_init_and_add(&entry->kobj, &fw_cfg_sysfs_entry_ktype,
-- 
GitLab


From 889c73305b483872260d5c5b4f9a11580c5b4d1f Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 1 Dec 2021 14:25:25 +0100
Subject: [PATCH 2807/4878] firmware: qemu_fw_cfg: fix NULL-pointer deref on
 duplicate entries

commit d3e305592d69e21e36b76d24ca3c01971a2d09be upstream.

Commit fe3c60684377 ("firmware: Fix a reference count leak.") "fixed"
a kobject leak in the file registration helper by properly calling
kobject_put() for the entry in case registration of the object fails
(e.g. due to a name collision).

This would however result in a NULL pointer dereference when the
release function tries to remove the never added entry from the
fw_cfg_entry_cache list.

Fix this by moving the list-removal out of the release function.

Note that the offending commit was one of the benign looking umn.edu
fixes which was reviewed but not reverted. [1][2]

[1] https://lore.kernel.org/r/202105051005.49BFABCE@keescook
[2] https://lore.kernel.org/all/YIg7ZOZvS3a8LjSv@kroah.com

Fixes: fe3c60684377 ("firmware: Fix a reference count leak.")
Cc: stable@vger.kernel.org      # 5.8
Cc: Qiushi Wu <wu000273@umn.edu>
Cc: Kees Cook <keescook@chromium.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211201132528.30025-2-johan@kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/qemu_fw_cfg.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index b41fac36ce9e2..23ba85074858b 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -388,9 +388,7 @@ static void fw_cfg_sysfs_cache_cleanup(void)
 	struct fw_cfg_sysfs_entry *entry, *next;
 
 	list_for_each_entry_safe(entry, next, &fw_cfg_entry_cache, list) {
-		/* will end up invoking fw_cfg_sysfs_cache_delist()
-		 * via each object's release() method (i.e. destructor)
-		 */
+		fw_cfg_sysfs_cache_delist(entry);
 		kobject_put(&entry->kobj);
 	}
 }
@@ -448,7 +446,6 @@ static void fw_cfg_sysfs_release_entry(struct kobject *kobj)
 {
 	struct fw_cfg_sysfs_entry *entry = to_entry(kobj);
 
-	fw_cfg_sysfs_cache_delist(entry);
 	kfree(entry);
 }
 
-- 
GitLab


From 6b8c3a1853771b78f12ed4b0464e3912ff7c9132 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 1 Dec 2021 14:25:26 +0100
Subject: [PATCH 2808/4878] firmware: qemu_fw_cfg: fix kobject leak in probe
 error path

commit 47a1db8e797da01a1309bf42e0c0d771d4e4d4f3 upstream.

An initialised kobject must be freed using kobject_put() to avoid
leaking associated resources (e.g. the object name).

Commit fe3c60684377 ("firmware: Fix a reference count leak.") "fixed"
the leak in the first error path of the file registration helper but
left the second one unchanged. This "fix" would however result in a NULL
pointer dereference due to the release function also removing the never
added entry from the fw_cfg_entry_cache list. This has now been
addressed.

Fix the remaining kobject leak by restoring the common error path and
adding the missing kobject_put().

Fixes: 75f3e8e47f38 ("firmware: introduce sysfs driver for QEMU's fw_cfg device")
Cc: stable@vger.kernel.org      # 4.6
Cc: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211201132528.30025-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/qemu_fw_cfg.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c
index 23ba85074858b..f08e056ed0ae4 100644
--- a/drivers/firmware/qemu_fw_cfg.c
+++ b/drivers/firmware/qemu_fw_cfg.c
@@ -603,15 +603,13 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
 	/* register entry under "/sys/firmware/qemu_fw_cfg/by_key/" */
 	err = kobject_init_and_add(&entry->kobj, &fw_cfg_sysfs_entry_ktype,
 				   fw_cfg_sel_ko, "%d", entry->select);
-	if (err) {
-		kobject_put(&entry->kobj);
-		return err;
-	}
+	if (err)
+		goto err_put_entry;
 
 	/* add raw binary content access */
 	err = sysfs_create_bin_file(&entry->kobj, &fw_cfg_sysfs_attr_raw);
 	if (err)
-		goto err_add_raw;
+		goto err_del_entry;
 
 	/* try adding "/sys/firmware/qemu_fw_cfg/by_name/" symlink */
 	fw_cfg_build_symlink(fw_cfg_fname_kset, &entry->kobj, entry->name);
@@ -620,9 +618,10 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
 	fw_cfg_sysfs_cache_enlist(entry);
 	return 0;
 
-err_add_raw:
+err_del_entry:
 	kobject_del(&entry->kobj);
-	kfree(entry);
+err_put_entry:
+	kobject_put(&entry->kobj);
 	return err;
 }
 
-- 
GitLab


From 4c7fb4d519e599bb69581d80fbfc1392cbea5fea Mon Sep 17 00:00:00 2001
From: Wei Wang <wei.w.wang@intel.com>
Date: Fri, 17 Dec 2021 07:49:34 -0500
Subject: [PATCH 2809/4878] KVM: x86: remove PMU FIXED_CTR3 from
 msrs_to_save_all

commit 9fb12fe5b93b94b9e607509ba461e17f4cc6a264 upstream.

The fixed counter 3 is used for the Topdown metrics, which hasn't been
enabled for KVM guests. Userspace accessing to it will fail as it's not
included in get_fixed_pmc(). This breaks KVM selftests on ICX+ machines,
which have this counter.

To reproduce it on ICX+ machines, ./state_test reports:
==== Test Assertion Failure ====
lib/x86_64/processor.c:1078: r == nmsrs
pid=4564 tid=4564 - Argument list too long
1  0x000000000040b1b9: vcpu_save_state at processor.c:1077
2  0x0000000000402478: main at state_test.c:209 (discriminator 6)
3  0x00007fbe21ed5f92: ?? ??:0
4  0x000000000040264d: _start at ??:?
 Unexpected result from KVM_GET_MSRS, r: 17 (failed MSR was 0x30c)

With this patch, it works well.

Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Message-Id: <20211217124934.32893-1-wei.w.wang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fixes: e2ada66ec418 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/x86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 879f743f7ff1e..271669dc8d90a 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1229,7 +1229,7 @@ static const u32 msrs_to_save_all[] = {
 	MSR_IA32_UMWAIT_CONTROL,
 
 	MSR_ARCH_PERFMON_FIXED_CTR0, MSR_ARCH_PERFMON_FIXED_CTR1,
-	MSR_ARCH_PERFMON_FIXED_CTR0 + 2, MSR_ARCH_PERFMON_FIXED_CTR0 + 3,
+	MSR_ARCH_PERFMON_FIXED_CTR0 + 2,
 	MSR_CORE_PERF_FIXED_CTR_CTRL, MSR_CORE_PERF_GLOBAL_STATUS,
 	MSR_CORE_PERF_GLOBAL_CTRL, MSR_CORE_PERF_GLOBAL_OVF_CTRL,
 	MSR_ARCH_PERFMON_PERFCTR0, MSR_ARCH_PERFMON_PERFCTR1,
-- 
GitLab


From 9c27e513fb336ee7a75f8b727aef4962f45fea66 Mon Sep 17 00:00:00 2001
From: Arie Geiger <arsgeiger@gmail.com>
Date: Thu, 23 Dec 2021 15:28:57 -0800
Subject: [PATCH 2810/4878] ALSA: hda/realtek: Add speaker fixup for some Yoga
 15ITL5 devices

commit 6dc86976220cc904e87ee58e4be19dd90d6a36d5 upstream.

This patch adds another possible subsystem ID for the ALC287 used by
the Lenovo Yoga 15ITL5.
It uses the same initalization as the others.
This patch has been tested and works for my device.

Signed-off-by: Arie Geiger <arsgeiger@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211223232857.30741-1-arsgeiger@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 14ce48f1a8e47..35a8ceb8c4811 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8863,6 +8863,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3853, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3819, "Lenovo 13s Gen2 ITL", ALC287_FIXUP_13S_GEN2_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
-- 
GitLab


From 87246ae94b73433e53f9d35b202bf076bdee991c Mon Sep 17 00:00:00 2001
From: Christian Lachner <gladiac@gmail.com>
Date: Mon, 3 Jan 2022 15:05:17 +0100
Subject: [PATCH 2811/4878] ALSA: hda/realtek - Fix silent output on Gigabyte
 X570 Aorus Master after reboot from Windows

commit c1933008679586b20437280463110c967d66f865 upstream.

This patch addresses an issue where after rebooting from Windows into Linux
there would be no audio output.

It turns out that the Realtek Audio driver on Windows changes some coeffs
which are not being reset/reinitialized when rebooting the machine. As a
result, there is no audio output until these coeffs are being reset to
their initial state. This patch takes care of that by setting known-good
(initial) values to the coeffs.

We initially relied upon alc1220_fixup_clevo_p950() to fix some pins in the
connection list. However, it also sets coef 0x7 which does not need to be
touched. Furthermore, to prevent mixing device-specific quirks I introduced
a new alc1220_fixup_gb_x570() which is heavily based on
alc1220_fixup_clevo_p950() but does not set coeff 0x7 and fixes the coeffs
that are actually needed instead.

This new alc1220_fixup_gb_x570() is believed to also work for other boards,
like the Gigabyte X570 Aorus Extreme and the newer Gigabyte Aorus X570S
Master. However, as there is no way for me to test these I initially only
enable this new behaviour for the mainboard I have which is the Gigabyte
X570(non-S) Aorus Master.

I tested this patch on the 5.15 branch as well as on master and it is
working well for me.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205275
Signed-off-by: Christian Lachner <gladiac@gmail.com>
Fixes: 0d45e86d2267d ("ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220103140517.30273-2-gladiac@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 35a8ceb8c4811..9f8f25ea1a659 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1936,6 +1936,7 @@ enum {
 	ALC887_FIXUP_ASUS_BASS,
 	ALC887_FIXUP_BASS_CHMAP,
 	ALC1220_FIXUP_GB_DUAL_CODECS,
+	ALC1220_FIXUP_GB_X570,
 	ALC1220_FIXUP_CLEVO_P950,
 	ALC1220_FIXUP_CLEVO_PB51ED,
 	ALC1220_FIXUP_CLEVO_PB51ED_PINS,
@@ -2125,6 +2126,29 @@ static void alc1220_fixup_gb_dual_codecs(struct hda_codec *codec,
 	}
 }
 
+static void alc1220_fixup_gb_x570(struct hda_codec *codec,
+				     const struct hda_fixup *fix,
+				     int action)
+{
+	static const hda_nid_t conn1[] = { 0x0c };
+	static const struct coef_fw gb_x570_coefs[] = {
+		WRITE_COEF(0x1a, 0x01c1),
+		WRITE_COEF(0x1b, 0x0202),
+		WRITE_COEF(0x43, 0x3005),
+		{}
+	};
+
+	switch (action) {
+	case HDA_FIXUP_ACT_PRE_PROBE:
+		snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn1), conn1);
+		snd_hda_override_conn_list(codec, 0x1b, ARRAY_SIZE(conn1), conn1);
+		break;
+	case HDA_FIXUP_ACT_INIT:
+		alc_process_coef_fw(codec, gb_x570_coefs);
+		break;
+	}
+}
+
 static void alc1220_fixup_clevo_p950(struct hda_codec *codec,
 				     const struct hda_fixup *fix,
 				     int action)
@@ -2427,6 +2451,10 @@ static const struct hda_fixup alc882_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc1220_fixup_gb_dual_codecs,
 	},
+	[ALC1220_FIXUP_GB_X570] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc1220_fixup_gb_x570,
+	},
 	[ALC1220_FIXUP_CLEVO_P950] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc1220_fixup_clevo_p950,
@@ -2529,7 +2557,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x13fe, 0x1009, "Advantech MIT-W101", ALC886_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1458, 0xa0b8, "Gigabyte AZ370-Gaming", ALC1220_FIXUP_GB_DUAL_CODECS),
-	SND_PCI_QUIRK(0x1458, 0xa0cd, "Gigabyte X570 Aorus Master", ALC1220_FIXUP_CLEVO_P950),
+	SND_PCI_QUIRK(0x1458, 0xa0cd, "Gigabyte X570 Aorus Master", ALC1220_FIXUP_GB_X570),
 	SND_PCI_QUIRK(0x1458, 0xa0ce, "Gigabyte X570 Aorus Xtreme", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x11f7, "MSI-GE63", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x1228, "MSI-GP63", ALC1220_FIXUP_CLEVO_P950),
-- 
GitLab


From d7b41464f1b7455e834a67742b153da22a31599e Mon Sep 17 00:00:00 2001
From: Bart Kroon <bart@tarmack.eu>
Date: Mon, 13 Dec 2021 19:20:43 +0100
Subject: [PATCH 2812/4878] ALSA: hda: ALC287: Add Lenovo IdeaPad Slim 9i
 14ITL5 speaker quirk

commit b81e9e5c723de936652653241d3dc4f33ae05e8c upstream.

The speaker fixup that is used for the Yoga 7 14ITL5 also applies to
the IdeaPad Slim 9i 14ITL5. The attached patch applies the quirk to
initialise the amplifier on the IdeaPad Slim 9i as well.

This is validated to work on my laptop.

[ corrected the quirk entry position by tiwai ]

Signed-off-by: Bart Kroon <bart@tarmack.eu>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/JAG24R.7NLJGWBF4G8U@tarmack.eu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9f8f25ea1a659..2bdd2fa8da69e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8887,6 +8887,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x31af, "ThinkCentre Station", ALC623_FIXUP_LENOVO_THINKSTATION_P340),
 	SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME),
 	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
+	SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
 	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
-- 
GitLab


From 4d15a17d065dd02b55929d6c17e0b220a52ed038 Mon Sep 17 00:00:00 2001
From: Baole Fang <fbl718@163.com>
Date: Wed, 5 Jan 2022 22:08:54 +0800
Subject: [PATCH 2813/4878] ALSA: hda/realtek: Add quirk for Legion Y9000X 2020

commit 8f4c90427a8f0ca0fcdd89d8966fcdab35fb2d4c upstream.

Legion Y9000X 2020 has a speaker, but the speaker doesn't work.
This can be fixed by applying alc285_fixup_ideapad_s740_coef
to fix the speaker's coefficients.
Besides, to support the transition between the speaker and the headphone,
alc287_fixup_legion_15imhg05_speakers needs to be run.

Signed-off-by: Baole Fang <fbl718@163.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220105140856.4855-1-fbl718@163.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2bdd2fa8da69e..660958259e0e4 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6757,6 +6757,8 @@ enum {
 	ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 	ALC233_FIXUP_NO_AUDIO_JACK,
 	ALC256_FIXUP_MIC_NO_PRESENCE_AND_RESUME,
+	ALC285_FIXUP_LEGION_Y9000X_SPEAKERS,
+	ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8347,6 +8349,18 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF,
 	},
+	[ALC285_FIXUP_LEGION_Y9000X_SPEAKERS] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc285_fixup_ideapad_s740_coef,
+		.chained = true,
+		.chain_id = ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE,
+	},
+	[ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc287_fixup_legion_15imhg05_speakers,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
+	},
 	[ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS] = {
 		.type = HDA_FIXUP_VERBS,
 		//.v.verbs = legion_15imhg05_coefs,
@@ -8887,6 +8901,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x31af, "ThinkCentre Station", ALC623_FIXUP_LENOVO_THINKSTATION_P340),
 	SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME),
 	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
+	SND_PCI_QUIRK(0x17aa, 0x3824, "Legion Y9000X 2020", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
 	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
-- 
GitLab


From 68c1aa82be00465700ef6d68dd24dd2a33553f34 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 5 Jan 2022 17:03:21 +0100
Subject: [PATCH 2814/4878] ALSA: hda/realtek: Re-order quirk entries for
 Lenovo

commit 2aac550da3257ab46e8c7944365eb4a79ccbb3a1 upstream.

The recent few quirk entries for Lenovo haven't been put in the right
order.  Let's arrange the table again.

Fixes: ad7cc2d41b7a ("ALSA: hda/realtek: Quirks to enable speaker output...")
Fixes: 6dc86976220c ("ALSA: hda/realtek: Add speaker fixup for some Yoga 15ITL5 devices")
Fixes: 8f4c90427a8f ("ALSA: hda/realtek: Add quirk for Legion Y9000X 2020")
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 660958259e0e4..a858bb9e99270 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8899,16 +8899,16 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3176, "ThinkCentre Station", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x3178, "ThinkCentre Station", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x31af, "ThinkCentre Station", ALC623_FIXUP_LENOVO_THINKSTATION_P340),
+	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME),
-	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
+	SND_PCI_QUIRK(0x17aa, 0x3819, "Lenovo 13s Gen2 ITL", ALC287_FIXUP_13S_GEN2_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3824, "Legion Y9000X 2020", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
 	SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
-	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3853, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
-	SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
-	SND_PCI_QUIRK(0x17aa, 0x3819, "Lenovo 13s Gen2 ITL", ALC287_FIXUP_13S_GEN2_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo B50-70", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
-- 
GitLab


From f50803b519c3375df984c2d5717c076d653ae9fb Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Mon, 3 May 2021 23:02:40 +1000
Subject: [PATCH 2815/4878] powerpc/pseries: Get entry and uaccess flush
 required bits from H_GET_CPU_CHARACTERISTICS

commit 65c7d070850e109a8a75a431f5a7f6eb4c007b77 upstream.

This allows the hypervisor / firmware to describe these workarounds to
the guest.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210503130243.891868-2-npiggin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/include/asm/hvcall.h      | 2 ++
 arch/powerpc/platforms/pseries/setup.c | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index 3e8e19f5746c7..00c8cda1c9c31 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -382,6 +382,8 @@
 #define H_CPU_BEHAV_BNDS_CHK_SPEC_BAR	(1ull << 61) // IBM bit 2
 #define H_CPU_BEHAV_FLUSH_COUNT_CACHE	(1ull << 58) // IBM bit 5
 #define H_CPU_BEHAV_FLUSH_LINK_STACK	(1ull << 57) // IBM bit 6
+#define H_CPU_BEHAV_NO_L1D_FLUSH_ENTRY	(1ull << 56) // IBM bit 7
+#define H_CPU_BEHAV_NO_L1D_FLUSH_UACCESS (1ull << 55) // IBM bit 8
 
 /* Flag values used in H_REGISTER_PROC_TBL hcall */
 #define PROC_TABLE_OP_MASK	0x18
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 5f0d446a2325e..47dfada140e19 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -538,6 +538,12 @@ static void init_cpu_char_feature_flags(struct h_cpu_char_result *result)
 	if (!(result->behaviour & H_CPU_BEHAV_L1D_FLUSH_PR))
 		security_ftr_clear(SEC_FTR_L1D_FLUSH_PR);
 
+	if (result->behaviour & H_CPU_BEHAV_NO_L1D_FLUSH_ENTRY)
+		security_ftr_clear(SEC_FTR_L1D_FLUSH_ENTRY);
+
+	if (result->behaviour & H_CPU_BEHAV_NO_L1D_FLUSH_UACCESS)
+		security_ftr_clear(SEC_FTR_L1D_FLUSH_UACCESS);
+
 	if (!(result->behaviour & H_CPU_BEHAV_BNDS_CHK_SPEC_BAR))
 		security_ftr_clear(SEC_FTR_BNDS_CHK_SPEC_BAR);
 }
-- 
GitLab


From bed97c9036210abe6c3542e2ce864931702c50c9 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 27 Sep 2021 16:10:37 +0200
Subject: [PATCH 2816/4878] mtd: fixup CFI on ixp4xx

commit 603362b4a58393061dcfed1c7f0d0fd4aba61126 upstream.

drivers/mtd/maps/ixp4xx.c requires MTD_CFI_BE_BYTE_SWAP to be set
in order to compile.

drivers/mtd/maps/ixp4xx.c:57:4: error: #error CONFIG_MTD_CFI_BE_BYTE_SWAP required

This patch avoids the #error output by enforcing the policy in
Kconfig. Not sure if this is the right approach, but it helps doing
randconfig builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210927141045.1597593-1-arnd@kernel.org
Cc: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/chips/Kconfig | 2 ++
 drivers/mtd/maps/Kconfig  | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index aef14990e5f7c..19726ebd973d0 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -55,12 +55,14 @@ choice
 	  LITTLE_ENDIAN_BYTE, if the bytes are reversed.
 
 config MTD_CFI_NOSWAP
+	depends on !ARCH_IXP4XX || CPU_BIG_ENDIAN
 	bool "NO"
 
 config MTD_CFI_BE_BYTE_SWAP
 	bool "BIG_ENDIAN_BYTE"
 
 config MTD_CFI_LE_BYTE_SWAP
+	depends on !ARCH_IXP4XX
 	bool "LITTLE_ENDIAN_BYTE"
 
 endchoice
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 6650acbc961e9..fc0aaa03c5242 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -325,7 +325,7 @@ config MTD_DC21285
 
 config MTD_IXP4XX
 	tristate "CFI Flash device mapped on Intel IXP4xx based systems"
-	depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX
+	depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX && MTD_CFI_ADV_OPTIONS
 	help
 	  This enables MTD access to flash devices on platforms based
 	  on Intel's IXP4xx family of network processors such as the
-- 
GitLab


From fd187a4925578f8743d4f266c821c7544d3cddae Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 20 Jan 2022 09:17:52 +0100
Subject: [PATCH 2817/4878] Linux 5.10.93

Link: https://lore.kernel.org/r/20220118160451.233828401@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index cdc95fe99a626..993559750df9d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 92
+SUBLEVEL = 93
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From dc5d7aea8ae29281b4d908a37b9d02209b18a700 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Thu, 20 Jan 2022 20:13:50 +0000
Subject: [PATCH 2818/4878] ANDROID: f2fs: fix fscrypt direct I/O support

The upstream change to make f2fs use iomap for direct I/O was backported
to this kernel branch, which broke the out-of-tree support for fscrypt
direct I/O because f2fs_iomap_begin() isn't aware of encryption.  Make
the needed change to f2fs_iomap_begin(), matching what I've proposed
upstream at
https://lore.kernel.org/r/20220120071215.123274-5-ebiggers@kernel.org.

Also drop the fscrypt support from fs/direct-io.c, which is no longer
used since both ext4 and f2fs now use iomap for direct I/O.

Bug: 162255927
Bug: 215554521
Fixes: 6d54ce01086a ("Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10")
Change-Id: I6b99b623ad3b8a86099c260787b2086b415a0e12
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/direct-io.c | 15 +--------------
 fs/f2fs/data.c |  7 +++++++
 2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/fs/direct-io.c b/fs/direct-io.c
index 94924bda3a7ef..4e9b306ca6bea 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -24,7 +24,6 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/fs.h>
-#include <linux/fscrypt.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/highmem.h>
@@ -393,7 +392,6 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
 	      sector_t first_sector, int nr_vecs)
 {
 	struct bio *bio;
-	struct inode *inode = dio->inode;
 
 	/*
 	 * bio_alloc() is guaranteed to return a bio when allowed to sleep and
@@ -401,9 +399,6 @@ dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,
 	 */
 	bio = bio_alloc(GFP_KERNEL, nr_vecs);
 
-	fscrypt_set_bio_crypt_ctx(bio, inode,
-				  sdio->cur_page_fs_offset >> inode->i_blkbits,
-				  GFP_KERNEL);
 	bio_set_dev(bio, bdev);
 	bio->bi_iter.bi_sector = first_sector;
 	bio_set_op_attrs(bio, dio->op, dio->op_flags);
@@ -768,17 +763,9 @@ static inline int dio_send_cur_page(struct dio *dio, struct dio_submit *sdio,
 		 * current logical offset in the file does not equal what would
 		 * be the next logical offset in the bio, submit the bio we
 		 * have.
-		 *
-		 * When fscrypt inline encryption is used, data unit number
-		 * (DUN) contiguity is also required.  Normally that's implied
-		 * by logical contiguity.  However, certain IV generation
-		 * methods (e.g. IV_INO_LBLK_32) don't guarantee it.  So, we
-		 * must explicitly check fscrypt_mergeable_bio() too.
 		 */
 		if (sdio->final_block_in_bio != sdio->cur_page_block ||
-		    cur_offset != bio_next_offset ||
-		    !fscrypt_mergeable_bio(sdio->bio, dio->inode,
-					   cur_offset >> dio->inode->i_blkbits))
+		    cur_offset != bio_next_offset)
 			dio_bio_submit(dio, sdio);
 	}
 
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 0a0ca29409e3c..02ad5063f1b9f 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -4089,6 +4089,13 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 
 	iomap->offset = blks_to_bytes(inode, map.m_lblk);
 
+	/*
+	 * When inline encryption is enabled, sometimes I/O to an encrypted file
+	 * has to be broken up to guarantee DUN contiguity.  Handle this by
+	 * limiting the length of the mapping returned.
+	 */
+	map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);
+
 	if (map.m_flags & (F2FS_MAP_MAPPED | F2FS_MAP_UNWRITTEN)) {
 		iomap->length = blks_to_bytes(inode, map.m_len);
 		if (map.m_flags & F2FS_MAP_MAPPED) {
-- 
GitLab


From 0c2826408d9a6a00353bbc67af889aadfe827260 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Fri, 14 Jan 2022 22:48:18 +0800
Subject: [PATCH 2819/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 201260585
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I5bfd07546aedf72fdff593b4a955acbb5281cbb9
---
 android/abi_gki_aarch64_generic | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index fafe9c0fbfbb4..bb2a7b421c149 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2047,6 +2047,7 @@
   time64_to_tm
   topology_set_thermal_pressure
   _totalram_pages
+  __trace_bprintk
   trace_event_buffer_commit
   trace_event_buffer_reserve
   trace_event_ignore_this_pid
@@ -2060,12 +2061,14 @@
   __traceiter_android_rvh_cpu_cgroup_online
   __traceiter_android_rvh_cpu_overutilized
   __traceiter_android_rvh_dequeue_task
+  __traceiter_android_rvh_dequeue_task_fair
   __traceiter_android_rvh_die_kernel_fault
   __traceiter_android_rvh_do_mem_abort
   __traceiter_android_rvh_do_sea
   __traceiter_android_rvh_do_sp_pc_abort
   __traceiter_android_rvh_do_undefinstr
   __traceiter_android_rvh_enqueue_task
+  __traceiter_android_rvh_enqueue_task_fair
   __traceiter_android_rvh_find_energy_efficient_cpu
   __traceiter_android_rvh_irqs_disable
   __traceiter_android_rvh_irqs_enable
@@ -2147,12 +2150,14 @@
   __tracepoint_android_rvh_cpu_cgroup_online
   __tracepoint_android_rvh_cpu_overutilized
   __tracepoint_android_rvh_dequeue_task
+  __tracepoint_android_rvh_dequeue_task_fair
   __tracepoint_android_rvh_die_kernel_fault
   __tracepoint_android_rvh_do_mem_abort
   __tracepoint_android_rvh_do_sea
   __tracepoint_android_rvh_do_sp_pc_abort
   __tracepoint_android_rvh_do_undefinstr
   __tracepoint_android_rvh_enqueue_task
+  __tracepoint_android_rvh_enqueue_task_fair
   __tracepoint_android_rvh_find_energy_efficient_cpu
   __tracepoint_android_rvh_irqs_disable
   __tracepoint_android_rvh_irqs_enable
-- 
GitLab


From 0b57557c8d4c5bc3f102bcc5f901482dbcb2ba1c Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 20 Jan 2022 17:17:55 +0000
Subject: [PATCH 2820/4878] ANDROID: GKI: update virtual device symbol list

Add symbols needed by the newly added open-dice.ko.

Bug: 198197082
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I035ad09985d216151fb84df104bc90b8db32bbcf
(cherry picked from commit 31641032ce017b2406802e4da557bf5a5bd8af0a)
---
 android/abi_gki_aarch64_virtual_device | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 2716a11f4ccd4..021e7e3513838 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -640,6 +640,11 @@
   vlan_vids_add_by_dev
   vlan_vids_del_by_dev
 
+# required by open-dice.ko
+  devm_memremap
+  devm_memunmap
+  vm_iomap_memory
+
 # required by psmouse.ko
   bus_register_notifier
   bus_unregister_notifier
-- 
GitLab


From eb69f26fe8e2177cfb7cbf859a23fc5ac59cacb7 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 20 Jan 2022 16:37:23 -0800
Subject: [PATCH 2821/4878] ANDROID: fuse: Fix umasking in backing

We should only apply the mask ourselves if we're not
using POSIX acls

Bug: 215212818
Test: com.android.cts.externalstorageapp.CommonExternalStorageTest
      #testAllPackageDirsWritable, verify files and cache permissions
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: If105afe62a60b93cbce1ca5ab5caf11f008aa7db
---
 fs/fuse/backing.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 6e24c55b8e9ae..069cb15c4b33b 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1091,8 +1091,11 @@ int fuse_mknod_backing(
 		return -EBADF;
 
 	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
+	mode = fmi->mode;
+	if (!IS_POSIXACL(backing_inode))
+		mode &= ~fmi->umask;
 	err = vfs_mknod(backing_inode, backing_path.dentry,
-			fmi->mode & ~fmi->umask, new_decode_dev(fmi->rdev));
+			mode, new_decode_dev(fmi->rdev));
 	inode_unlock(backing_inode);
 	if (err)
 		goto out;
@@ -1165,7 +1168,10 @@ int fuse_mkdir_backing(
 		return -EBADF;
 
 	inode_lock_nested(backing_inode, I_MUTEX_PARENT);
-	err = vfs_mkdir(backing_inode, backing_path.dentry, fmi->mode & ~fmi->umask);
+	mode = fmi->mode;
+	if (!IS_POSIXACL(backing_inode))
+		mode &= ~fmi->umask;
+	err = vfs_mkdir(backing_inode, backing_path.dentry, mode);
 	if (err)
 		goto out;
 	if (d_really_is_negative(backing_path.dentry) ||
-- 
GitLab


From 429fe1395fd805434a0e53d01619b1b8b6bd443e Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 21 Jan 2022 13:30:21 +0000
Subject: [PATCH 2822/4878] Revert "ANDROID: KVM: arm64: Avoid switching to
 guest context if guest is already loaded"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit ecf2308ee8de31d74bb3d59b5e5d2e66615d1141.

If the guest issues a 'memunshare' hypercall, then we will attempt to
switch to the host context using __tlb_switch_to_guest() when invalidating
the previously shared mapping in the host stage-2 page-table. This results
in a fatal WARN_ON():

  | kvm [346]: nVHE hyp BUG at: ffff800010dfa86c!
  | kvm [346]: Hyp Offset: 0xfffecb8c68d20000
  | Kernel panic - not syncing: HYP panic:
  | PS:200003c9 PC:0000b473a80da86c ESR:f2000800
  | FAR:00000000000003f8 HPFAR:0000000000000000 PAR:0000000000000000
  | VCPU:0000b472c4a3d380
  | CPU: 3 PID: 346 Comm: crosvm_vcpu0 Not tainted 5.10.92-00347-g6d54ce01086a #1
  | Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015
  | Call trace:
  |  dump_backtrace+0x0/0x1a0
  |  show_stack+0x18/0x68
  |  dump_stack_lvl+0xcc/0xf4
  |  dump_stack+0x18/0x58
  |  panic+0x16c/0x334
  |  arm64_kernel_unmapped_at_el0+0x0/0x34
  |  kvm_arch_vcpu_ioctl_run+0x170/0x740
  |  kvm_vcpu_ioctl+0x310/0x9e8
  |  __arm64_sys_ioctl+0xa8/0xf0
  |  el0_svc_common.constprop.0+0x74/0x1b8
  |  do_el0_svc+0x24/0x90
  |  el0_svc+0x14/0x20
  |  el0_sync_handler+0xb0/0xb8
  |  el0_sync+0x1a0/0x1c0
  | SMP: stopping secondary CPUs
  | Kernel Offset: 0x20125c0e0000 from 0xffff800010000000
  | PHYS_OFFSET: 0xffffaf7640000000
  | CPU features: 0x000,10240022,61806008
  | Memory Limit: none
  | ---[ end Kernel panic - not syncing: HYP panic:
  | PS:200003c9 PC:0000b473a80da86c ESR:f2000800
  | FAR:00000000000003f8 HPFAR:0000000000000000 PAR:0000000000000000
  | VCPU:0000b472c4a3d380 ]---

Revert the change introducing the WARN_ON() for now, as we'll fix this
properly in a subsequent patch.

Bug: 209580772
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If8f9901e1c9a36ede412bbf1b7ab4aa381e12424
---
 arch/arm64/kvm/hyp/nvhe/tlb.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/tlb.c b/arch/arm64/kvm/hyp/nvhe/tlb.c
index 82f8a51955052..d296d617f5896 100644
--- a/arch/arm64/kvm/hyp/nvhe/tlb.c
+++ b/arch/arm64/kvm/hyp/nvhe/tlb.c
@@ -17,17 +17,6 @@ struct tlb_inv_context {
 static void __tlb_switch_to_guest(struct kvm_s2_mmu *mmu,
 				  struct tlb_inv_context *cxt)
 {
-	struct kvm_cpu_context *host_ctxt;
-	struct kvm_vcpu *vcpu;
-
-	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;
-	vcpu = host_ctxt->__hyp_running_vcpu;
-
-	if (vcpu) {
-		WARN_ON(vcpu->arch.hw_mmu->vmid.vmid != mmu->vmid.vmid);
-		return;
-	}
-
 	if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT)) {
 		u64 val;
 
@@ -56,12 +45,6 @@ static void __tlb_switch_to_guest(struct kvm_s2_mmu *mmu,
 
 static void __tlb_switch_to_host(struct tlb_inv_context *cxt)
 {
-	struct kvm_cpu_context *host_ctxt;
-
-	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;
-	if (host_ctxt->__hyp_running_vcpu)
-		return;
-
 	__load_host_stage2();
 
 	if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT)) {
-- 
GitLab


From 4c19295443545e873c091056b0982fc2aef8ba40 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 21 Jan 2022 13:42:52 +0000
Subject: [PATCH 2823/4878] ANDROID: KVM: arm64: Support TLB invalidation in
 guest context

Typically, TLB invalidation of guest stage-2 mappings using nVHE is
performed by a hypercall originating from the host. For the invalidation
instruction to be effective, therefore, __tlb_switch_to_{guest,host}()
swizzle the active stage-2 context around the TLBI instruction.

With guest-to-host memory sharing and unsharing hypercalls originating
from the guest under pKVM, there is now a need to support both guest
and host VMID invalidations issued from guest context.

Replace the __tlb_switch_to_{guest,host}() functions with a more general
{enter,exit}_vmid_context() implementation which supports being invoked
from guest context and acts as a no-op if the target context matches the
running context.

Bug: 209580772
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I259b1acd11f25143080af2deaab820746090436d
---
 arch/arm64/kvm/hyp/nvhe/tlb.c | 96 ++++++++++++++++++++++++++++-------
 1 file changed, 78 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/tlb.c b/arch/arm64/kvm/hyp/nvhe/tlb.c
index d296d617f5896..3f5601176fab5 100644
--- a/arch/arm64/kvm/hyp/nvhe/tlb.c
+++ b/arch/arm64/kvm/hyp/nvhe/tlb.c
@@ -11,26 +11,62 @@
 #include <nvhe/mem_protect.h>
 
 struct tlb_inv_context {
-	u64		tcr;
+	struct kvm_s2_mmu	*mmu;
+	u64			tcr;
+	u64			sctlr;
 };
 
-static void __tlb_switch_to_guest(struct kvm_s2_mmu *mmu,
-				  struct tlb_inv_context *cxt)
+static void enter_vmid_context(struct kvm_s2_mmu *mmu,
+			       struct tlb_inv_context *cxt)
 {
+	struct kvm_s2_mmu *host_mmu = &host_kvm.arch.mmu;
+	struct kvm_cpu_context *host_ctxt;
+	struct kvm_vcpu *vcpu;
+
+	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;
+	vcpu = host_ctxt->__hyp_running_vcpu;
+	cxt->mmu = NULL;
+
+	/*
+	 * If we're already in the desired context, then there's nothing
+	 * to do.
+	 */
+	if (vcpu) {
+		if (mmu == vcpu->arch.hw_mmu || WARN_ON(mmu != host_mmu))
+			return;
+	} else if (mmu == host_mmu) {
+		return;
+	}
+
+	cxt->mmu = mmu;
 	if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT)) {
 		u64 val;
 
 		/*
 		 * For CPUs that are affected by ARM 1319367, we need to
-		 * avoid a host Stage-1 walk while we have the guest's
-		 * VMID set in the VTTBR in order to invalidate TLBs.
-		 * We're guaranteed that the S1 MMU is enabled, so we can
-		 * simply set the EPD bits to avoid any further TLB fill.
+		 * avoid a Stage-1 walk with the old VMID while we have
+		 * the new VMID set in the VTTBR in order to invalidate TLBs.
+		 * We're guaranteed that the host S1 MMU is enabled, so
+		 * we can simply set the EPD bits to avoid any further
+		 * TLB fill. For guests, we ensure that the S1 MMU is
+		 * temporarily enabled in the next context.
 		 */
 		val = cxt->tcr = read_sysreg_el1(SYS_TCR);
 		val |= TCR_EPD1_MASK | TCR_EPD0_MASK;
 		write_sysreg_el1(val, SYS_TCR);
 		isb();
+
+		if (vcpu) {
+			val = cxt->sctlr = read_sysreg_el1(SYS_SCTLR);
+			if (!(val & SCTLR_ELx_M)) {
+				val |= SCTLR_ELx_M;
+				write_sysreg_el1(val, SYS_SCTLR);
+				isb();
+			}
+		} else {
+			/* The host S1 MMU is always enabled. */
+			cxt->sctlr = SCTLR_ELx_M;
+		}
 	}
 
 	/*
@@ -39,20 +75,44 @@ static void __tlb_switch_to_guest(struct kvm_s2_mmu *mmu,
 	 * ensuring that we always have an ISB, but not two ISBs back
 	 * to back.
 	 */
-	__load_stage2(mmu, kern_hyp_va(mmu->arch));
+	if (vcpu)
+		__load_host_stage2();
+	else
+		__load_stage2(mmu, kern_hyp_va(mmu->arch));
+
 	asm(ALTERNATIVE("isb", "nop", ARM64_WORKAROUND_SPECULATIVE_AT));
 }
 
-static void __tlb_switch_to_host(struct tlb_inv_context *cxt)
+static void exit_vmid_context(struct tlb_inv_context *cxt)
 {
-	__load_host_stage2();
+	struct kvm_s2_mmu *mmu = cxt->mmu;
+	struct kvm_cpu_context *host_ctxt;
+	struct kvm_vcpu *vcpu;
+
+	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;
+	vcpu = host_ctxt->__hyp_running_vcpu;
+
+	if (!mmu)
+		return;
+
+	if (vcpu)
+		__load_stage2(mmu, kern_hyp_va(mmu->arch));
+	else
+		__load_host_stage2();
 
 	if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT)) {
-		/* Ensure write of the host VMID */
+		/* Ensure write of the old VMID */
 		isb();
-		/* Restore the host's TCR_EL1 */
+
+		if (!(cxt->sctlr & SCTLR_ELx_M)) {
+			write_sysreg_el1(cxt->sctlr, SYS_SCTLR);
+			isb();
+		}
+
 		write_sysreg_el1(cxt->tcr, SYS_TCR);
 	}
+
+	cxt->mmu = NULL;
 }
 
 void __kvm_tlb_flush_vmid_ipa(struct kvm_s2_mmu *mmu,
@@ -63,7 +123,7 @@ void __kvm_tlb_flush_vmid_ipa(struct kvm_s2_mmu *mmu,
 	dsb(ishst);
 
 	/* Switch to requested VMID */
-	__tlb_switch_to_guest(mmu, &cxt);
+	enter_vmid_context(mmu, &cxt);
 
 	/*
 	 * We could do so much better if we had the VA as well.
@@ -106,7 +166,7 @@ void __kvm_tlb_flush_vmid_ipa(struct kvm_s2_mmu *mmu,
 	if (icache_is_vpipt())
 		icache_inval_all_pou();
 
-	__tlb_switch_to_host(&cxt);
+	exit_vmid_context(&cxt);
 }
 
 void __kvm_tlb_flush_vmid(struct kvm_s2_mmu *mmu)
@@ -116,13 +176,13 @@ void __kvm_tlb_flush_vmid(struct kvm_s2_mmu *mmu)
 	dsb(ishst);
 
 	/* Switch to requested VMID */
-	__tlb_switch_to_guest(mmu, &cxt);
+	enter_vmid_context(mmu, &cxt);
 
 	__tlbi(vmalls12e1is);
 	dsb(ish);
 	isb();
 
-	__tlb_switch_to_host(&cxt);
+	exit_vmid_context(&cxt);
 }
 
 void __kvm_flush_cpu_context(struct kvm_s2_mmu *mmu)
@@ -130,14 +190,14 @@ void __kvm_flush_cpu_context(struct kvm_s2_mmu *mmu)
 	struct tlb_inv_context cxt;
 
 	/* Switch to requested VMID */
-	__tlb_switch_to_guest(mmu, &cxt);
+	enter_vmid_context(mmu, &cxt);
 
 	__tlbi(vmalle1);
 	asm volatile("ic iallu");
 	dsb(nsh);
 	isb();
 
-	__tlb_switch_to_host(&cxt);
+	exit_vmid_context(&cxt);
 }
 
 void __kvm_flush_vm_context(void)
-- 
GitLab


From a9a8ba7348ef843c3306cb2fda3e347468b2903a Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Fri, 21 Jan 2022 14:03:01 +0000
Subject: [PATCH 2824/4878] ANDROID: KVM: arm64: Fix vcpu sys_reg accessors
 when running with VHE

Commit 3f6536412f0b ("ANDROID: KVM: arm64: refactor vcpu_read_sys_reg
and vcpu_write_sys_reg for hyp use") predicated direct access to the
live vCPU registers on an is_vhe_hyp_code() check, neglecting the fact
that these functions are also used by the VHE *kernel* code.

Restore the old behaviour by changing the check so that only the nVHE
hyp code unconditionally uses the 'ctxt_sys_reg' table.

Reported-by: Marc Zyngier <mzyngier@google.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I17d4c12ffdbbd95e8e8d1820ebb6438b138361aa
---
 arch/arm64/include/asm/kvm_host.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a69284d07a28f..3b69db40e003a 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -686,7 +686,8 @@ static inline u64 vcpu_arch_read_sys_reg(const struct kvm_vcpu_arch *vcpu_arch,
 {
 	u64 val = 0x8badf00d8badf00d;
 
-	if (is_vhe_hyp_code() && vcpu_arch->sysregs_loaded_on_cpu &&
+	/* sysregs_loaded_on_cpu is only used in VHE */
+	if (!is_nvhe_hyp_code() && vcpu_arch->sysregs_loaded_on_cpu &&
 	    __vcpu_read_sys_reg_from_cpu(reg, &val))
 		return val;
 
@@ -695,7 +696,8 @@ static inline u64 vcpu_arch_read_sys_reg(const struct kvm_vcpu_arch *vcpu_arch,
 
 static inline void vcpu_arch_write_sys_reg(struct kvm_vcpu_arch *vcpu_arch, u64 val, int reg)
 {
-	if (is_vhe_hyp_code() && vcpu_arch->sysregs_loaded_on_cpu &&
+	/* sysregs_loaded_on_cpu is only used in VHE */
+	if (!is_nvhe_hyp_code() && vcpu_arch->sysregs_loaded_on_cpu &&
 	    __vcpu_write_sys_reg_to_cpu(val, reg))
 		return;
 
-- 
GitLab


From eca436b2451b28c20305c76712cdadec619e5709 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 24 Jan 2022 09:26:46 +0000
Subject: [PATCH 2825/4878] ANDROID: BACKPORT: KVM: arm64: pkvm: Force
 injection of a data abort on NISV MMIO exit

If a vcpu exits for a data abort with an invalid syndrome, the
expectations are that userspace has a chance to save the day if
it has requested to see such exits.

However, this is completely futile in the case of a protected VM,
as none of the state is available. In this particular case, inject
a data abort directly into the vcpu, consistent with what userspace
could do.

This also helps with pKVM, which discards all syndrome information when
forwarding data aborts that are not known to be MMIO.

Finally, hide the RETURN_NISV_IO_ABORT_TO_USER cap from userspace on
protected VMs, and document this tweak to the API.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Bug: 209580772
[willdeacon@: Drop KVM_CAP_SET_GUEST_DEBUG2 from context]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4090c7c266b27776089cac69efd489264ed003cf
---
 Documentation/virt/kvm/api.rst |  7 +++++++
 arch/arm64/kvm/arm.c           | 14 ++++++++++----
 arch/arm64/kvm/mmio.c          |  9 +++++++++
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 8881f006d6778..fa844120e7473 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -5328,6 +5328,13 @@ Note that KVM does not skip the faulting instruction as it does for
 KVM_EXIT_MMIO, but userspace has to emulate any change to the processing state
 if it decides to decode and emulate the instruction.
 
+This feature isn't available to protected VMs, as userspace does not
+have access to the state that is required to perform the emulation.
+Instead, a data abort exception is directly injected in the guest.
+Note that although KVM_CAP_ARM_NISV_TO_USER will be reported if
+queried outside of a protected VM context, the feature will not be
+exposed if queried on a protected VM file descriptor.
+
 ::
 
 		/* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 37dbfbd695a9a..2c60582deb127 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -99,9 +99,13 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 	/* Capabilities without flags */
 	switch (cap->cap) {
 	case KVM_CAP_ARM_NISV_TO_USER:
-		r = 0;
-		set_bit(KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER,
-			&kvm->arch.flags);
+		if (kvm_vm_is_protected(kvm)) {
+			r = -EINVAL;
+		} else {
+			r = 0;
+			set_bit(KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER,
+				&kvm->arch.flags);
+		}
 		break;
 	case KVM_CAP_ARM_MTE:
 		mutex_lock(&kvm->lock);
@@ -260,13 +264,15 @@ static int kvm_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_IMMEDIATE_EXIT:
 	case KVM_CAP_VCPU_EVENTS:
 	case KVM_CAP_ARM_IRQ_LINE_LAYOUT_2:
-	case KVM_CAP_ARM_NISV_TO_USER:
 	case KVM_CAP_ARM_INJECT_EXT_DABT:
 	case KVM_CAP_SET_GUEST_DEBUG:
 	case KVM_CAP_VCPU_ATTRIBUTES:
 	case KVM_CAP_PTP_KVM:
 		r = 1;
 		break;
+	case KVM_CAP_ARM_NISV_TO_USER:
+		r = !kvm || !kvm_vm_is_protected(kvm);
+		break;
 	case KVM_CAP_ARM_SET_DEVICE_ADDR:
 		r = 1;
 		break;
diff --git a/arch/arm64/kvm/mmio.c b/arch/arm64/kvm/mmio.c
index 3dd38a151d2a6..db6630c70f8b5 100644
--- a/arch/arm64/kvm/mmio.c
+++ b/arch/arm64/kvm/mmio.c
@@ -133,8 +133,17 @@ int io_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa)
 	/*
 	 * No valid syndrome? Ask userspace for help if it has
 	 * volunteered to do so, and bail out otherwise.
+	 *
+	 * In the protected VM case, there isn't much userspace can do
+	 * though, so directly deliver an exception to the guest.
 	 */
 	if (!kvm_vcpu_dabt_isvalid(vcpu)) {
+		if (is_protected_kvm_enabled() &&
+		    kvm_vm_is_protected(vcpu->kvm)) {
+			kvm_inject_dabt(vcpu, kvm_vcpu_get_hfar(vcpu));
+			return 1;
+		}
+
 		if (test_bit(KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER,
 			     &vcpu->kvm->arch.flags)) {
 			run->exit_reason = KVM_EXIT_ARM_NISV;
-- 
GitLab


From e5afbcc0aca47344ce0ab5b9ff77d7b7e64e5972 Mon Sep 17 00:00:00 2001
From: Hector Martin <marcan@marcan.st>
Date: Thu, 4 Feb 2021 22:56:13 +0900
Subject: [PATCH 2826/4878] UPSTREAM: arm64: cputype: Add CPU implementor &
 types for the Apple M1 cores

The implementor will be used to condition the FIQ support quirk.

The specific CPU types are not used at the moment, but let's add them
for documentation purposes.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
(cherry picked from commit 11ecdad722daafcac09c4859dddf31b3d46449bc)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If84141e50dfb52258c9ecfca9979f2d77e9a5197
---
 arch/arm64/include/asm/cputype.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index ef5b040dee44d..6231e1f0abe7e 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -59,6 +59,7 @@
 #define ARM_CPU_IMP_NVIDIA		0x4E
 #define ARM_CPU_IMP_FUJITSU		0x46
 #define ARM_CPU_IMP_HISI		0x48
+#define ARM_CPU_IMP_APPLE		0x61
 
 #define ARM_CPU_PART_AEM_V8		0xD0F
 #define ARM_CPU_PART_FOUNDATION		0xD00
@@ -99,6 +100,9 @@
 
 #define HISI_CPU_PART_TSV110		0xD01
 
+#define APPLE_CPU_PART_M1_ICESTORM	0x022
+#define APPLE_CPU_PART_M1_FIRESTORM	0x023
+
 #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
 #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
@@ -127,6 +131,8 @@
 #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
 #define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)
 #define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110)
+#define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM)
+#define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM)
 
 /* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */
 #define MIDR_FUJITSU_ERRATUM_010001		MIDR_FUJITSU_A64FX
-- 
GitLab


From eb81e57b5b5bd8ea69a21074d649ebd2be0c4abd Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Mon, 24 Jan 2022 10:42:24 +0000
Subject: [PATCH 2827/4878] Revert "FROMLIST: KVM: arm64: pkvm: Use the mm_ops
 indirection for cache maintenance"

This reverts commit 9ad5e201c7a4375d04045099c8d0862ef5b54854.

The corresponding patch has been queued in the kvmarm tree as a fix for
5.17, so revert our FROMLIST version in preparation for pulling in the
upstream queue instead.

Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I7f65941b2b13125c6c6397590abbc3e18cb54496
---
 arch/arm64/kvm/hyp/pgtable.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 03bdf4f508260..8ca3fffe00f5d 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -983,9 +983,13 @@ static int stage2_unmap_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	 */
 	stage2_put_pte(ptep, mmu, addr, level, mm_ops);
 
-	if (need_flush && mm_ops->dcache_clean_inval_poc)
-		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(pte, mm_ops),
-					       kvm_granule_size(level));
+	if (need_flush) {
+		kvm_pte_t *pte_follow = kvm_pte_follow(pte, mm_ops);
+
+		dcache_clean_inval_poc((unsigned long)pte_follow,
+				    (unsigned long)pte_follow +
+					    kvm_granule_size(level));
+	}
 
 	if (childp)
 		mm_ops->put_page(childp);
@@ -1147,13 +1151,15 @@ static int stage2_flush_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	struct kvm_pgtable *pgt = arg;
 	struct kvm_pgtable_mm_ops *mm_ops = pgt->mm_ops;
 	kvm_pte_t pte = *ptep;
+	kvm_pte_t *pte_follow;
 
 	if (!stage2_pte_cacheable(pgt, pte))
 		return 0;
 
-	if (mm_ops->dcache_clean_inval_poc)
-		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(pte, mm_ops),
-					       kvm_granule_size(level));
+	pte_follow = kvm_pte_follow(pte, mm_ops);
+	dcache_clean_inval_poc((unsigned long)pte_follow,
+			    (unsigned long)pte_follow +
+				    kvm_granule_size(level));
 	return 0;
 }
 
-- 
GitLab


From 0c710007a4305a49ad8b45f78432d24ee4f4f5e8 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 14 Jan 2022 08:57:58 +0000
Subject: [PATCH 2828/4878] FROMGIT: KVM: arm64: pkvm: Use the mm_ops
 indirection for cache maintenance

CMOs issued from EL2 cannot directly use the kernel helpers,
as EL2 doesn't have a mapping of the guest pages. Oops.

Instead, use the mm_ops indirection to use helpers that will
perform a mapping at EL2 and allow the CMO to be effective.

Fixes: 25aa28691bb9 ("KVM: arm64: Move guest CMOs to the fault handlers")
Reviewed-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220114125038.1336965-1-maz@kernel.org
(cherry picked from commit 094d00f8ca58c5d29b25e23b4daaed1ff1f13b41
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git fixes)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id020c5adb0ce0d02bc6cd344e7d01859539b9f4f
---
 arch/arm64/kvm/hyp/pgtable.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index 8ca3fffe00f5d..03bdf4f508260 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -983,13 +983,9 @@ static int stage2_unmap_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	 */
 	stage2_put_pte(ptep, mmu, addr, level, mm_ops);
 
-	if (need_flush) {
-		kvm_pte_t *pte_follow = kvm_pte_follow(pte, mm_ops);
-
-		dcache_clean_inval_poc((unsigned long)pte_follow,
-				    (unsigned long)pte_follow +
-					    kvm_granule_size(level));
-	}
+	if (need_flush && mm_ops->dcache_clean_inval_poc)
+		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(pte, mm_ops),
+					       kvm_granule_size(level));
 
 	if (childp)
 		mm_ops->put_page(childp);
@@ -1151,15 +1147,13 @@ static int stage2_flush_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 	struct kvm_pgtable *pgt = arg;
 	struct kvm_pgtable_mm_ops *mm_ops = pgt->mm_ops;
 	kvm_pte_t pte = *ptep;
-	kvm_pte_t *pte_follow;
 
 	if (!stage2_pte_cacheable(pgt, pte))
 		return 0;
 
-	pte_follow = kvm_pte_follow(pte, mm_ops);
-	dcache_clean_inval_poc((unsigned long)pte_follow,
-			    (unsigned long)pte_follow +
-				    kvm_granule_size(level));
+	if (mm_ops->dcache_clean_inval_poc)
+		mm_ops->dcache_clean_inval_poc(kvm_pte_follow(pte, mm_ops),
+					       kvm_granule_size(level));
 	return 0;
 }
 
-- 
GitLab


From 2f7bdca6d979574e443386a27a1678c24b926072 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 21 Jan 2022 21:07:47 +0000
Subject: [PATCH 2829/4878] FROMGIT: KVM: arm64: vgic-v3: Restrict SEIS
 workaround to known broken systems

Contrary to what df652bcf1136 ("KVM: arm64: vgic-v3: Work around GICv3
locally generated SErrors") was asserting, there is at least one other
system out there (Cavium ThunderX2) implementing SEIS, and not in
an obviously broken way.

So instead of imposing the M1 workaround on an innocent bystander,
let's limit it to the two known broken Apple implementations.

Fixes: df652bcf1136 ("KVM: arm64: vgic-v3: Work around GICv3 locally generated SErrors")
Reported-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220122103912.795026-1-maz@kernel.org
(cherry picked from commit d11a327ed95dbec756b99cbfef2a7fd85c9eeb09
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git fixes)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I4c1b8faab30744f81b012e03b31cdd8254614f87
---
 arch/arm64/kvm/hyp/vgic-v3-sr.c |  3 +++
 arch/arm64/kvm/vgic/vgic-v3.c   | 17 +++++++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index 4c8ebcd31bb71..d5a51ea5459c9 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -1002,6 +1002,9 @@ static void __vgic_v3_read_ctlr(struct kvm_vcpu *vcpu, u32 vmcr, int rt)
 	val = ((vtr >> 29) & 7) << ICC_CTLR_EL1_PRI_BITS_SHIFT;
 	/* IDbits */
 	val |= ((vtr >> 23) & 7) << ICC_CTLR_EL1_ID_BITS_SHIFT;
+	/* SEIS */
+	if (kvm_vgic_global_state.ich_vtr_el2 & ICH_VTR_SEIS_MASK)
+		val |= BIT(ICC_CTLR_EL1_SEIS_SHIFT);
 	/* A3V */
 	val |= ((vtr >> 21) & 1) << ICC_CTLR_EL1_A3V_SHIFT;
 	/* EOImode */
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c
index 98dd20d3fb847..9be4fed60bd47 100644
--- a/arch/arm64/kvm/vgic/vgic-v3.c
+++ b/arch/arm64/kvm/vgic/vgic-v3.c
@@ -609,6 +609,18 @@ static int __init early_gicv4_enable(char *buf)
 }
 early_param("kvm-arm.vgic_v4_enable", early_gicv4_enable);
 
+static const struct midr_range broken_seis[] = {
+	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_ICESTORM),
+	MIDR_ALL_VERSIONS(MIDR_APPLE_M1_FIRESTORM),
+	{},
+};
+
+static bool vgic_v3_broken_seis(void)
+{
+	return ((kvm_vgic_global_state.ich_vtr_el2 & ICH_VTR_SEIS_MASK) &&
+		is_midr_in_range_list(read_cpuid_id(), broken_seis));
+}
+
 /**
  * vgic_v3_probe - probe for a VGICv3 compatible interrupt controller
  * @info:	pointer to the GIC description
@@ -676,9 +688,10 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
 		group1_trap = true;
 	}
 
-	if (kvm_vgic_global_state.ich_vtr_el2 & ICH_VTR_SEIS_MASK) {
-		kvm_info("GICv3 with locally generated SEI\n");
+	if (vgic_v3_broken_seis()) {
+		kvm_info("GICv3 with broken locally generated SEI\n");
 
+		kvm_vgic_global_state.ich_vtr_el2 &= ~ICH_VTR_SEIS_MASK;
 		group0_trap = true;
 		group1_trap = true;
 		if (ich_vtr_el2 & ICH_VTR_TDS_MASK)
-- 
GitLab


From 0d871c706382c841f06da9c6b53afa40bc682c86 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 21 Jan 2022 18:42:07 +0000
Subject: [PATCH 2830/4878] FROMGIT: KVM: arm64: Use shadow SPSR_EL1 when
 injecting exceptions on !VHE

Injecting an exception into a guest with non-VHE is risky business.
Instead of writing in the shadow register for the switch code to
restore it, we override the CPU register instead. Which gets
overriden a few instructions later by said restore code.

The result is that although the guest correctly gets the exception,
it will return to the original context in some random state,
depending on what was there the first place... Boo.

Fix the issue by writing to the shadow register. The original code
is absolutely fine on VHE, as the state is already loaded, and writing
to the shadow register in that case would actually be a bug.

Fixes: bb666c472ca2 ("KVM: arm64: Inject AArch64 exceptions from HYP")
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Fuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20220121184207.423426-1-maz@kernel.org
(cherry picked from commit 278583055a237270fac70518275ba877bf9e4013
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git fixes)
Bug: 209777660
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ifc1504c4be69e36a0a70033b36ee148c337ac7b5
---
 arch/arm64/kvm/hyp/exception.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/exception.c b/arch/arm64/kvm/hyp/exception.c
index 0418399e0a201..c5d0097154020 100644
--- a/arch/arm64/kvm/hyp/exception.c
+++ b/arch/arm64/kvm/hyp/exception.c
@@ -38,7 +38,10 @@ static inline void __vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg)
 
 static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, u64 val)
 {
-	write_sysreg_el1(val, SYS_SPSR);
+	if (has_vhe())
+		write_sysreg_el1(val, SYS_SPSR);
+	else
+		__vcpu_sys_reg(vcpu, SPSR_EL1) = val;
 }
 
 static void __vcpu_write_spsr_abt(struct kvm_vcpu *vcpu, u64 val)
-- 
GitLab


From 7704af783459f888ec7c1ad35de0bb85a156e1bd Mon Sep 17 00:00:00 2001
From: Leo Yan <leo.yan@linaro.org>
Date: Mon, 9 Aug 2021 19:14:00 +0800
Subject: [PATCH 2831/4878] UPSTREAM: coresight: tmc-etr: Add barrier after
 updating AUX ring buffer

Since a memory barrier is required between AUX trace data store and
aux_head store, and the AUX trace data is filled with memcpy(), it's
sufficient to use smp_wmb() so can ensure the trace data is visible
prior to updating aux_head.

Bug: 213931796
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210809111407.596077-3-leo.yan@linaro.org
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit 26701ceb4c2c6bfa5f8c8984fa1a1ea08fa0f02c)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I1bb64436a794d03e993fc85fca0f44224823d9d3
---
 drivers/hwtracing/coresight/coresight-tmc-etr.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index ea5027e397d02..ba621a9808fd2 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -1563,6 +1563,14 @@ tmc_update_etr_buffer(struct coresight_device *csdev,
 	 */
 	if (etr_perf->snapshot)
 		handle->head += size;
+
+	/*
+	 * Ensure that the AUX trace data is visible before the aux_head
+	 * is updated via perf_aux_output_end(), as expected by the
+	 * perf ring buffer.
+	 */
+	smp_wmb();
+
 out:
 	/*
 	 * Don't set the TRUNCATED flag in snapshot mode because 1) the
-- 
GitLab


From bd68b82ac77d482ef4423dc5e19d80f0d887258f Mon Sep 17 00:00:00 2001
From: Leo Yan <leo.yan@linaro.org>
Date: Sun, 5 Sep 2021 11:21:44 +0800
Subject: [PATCH 2832/4878] UPSTREAM: coresight: tmc-etr: Speed up for bounce
 buffer in flat mode

The AUX bounce buffer is allocated with API dma_alloc_coherent(), in the
low level's architecture code, e.g. for Arm64, it maps the memory with
the attribution "Normal non-cacheable"; this can be concluded from the
definition for pgprot_dmacoherent() in arch/arm64/include/asm/pgtable.h.

Later when access the AUX bounce buffer, since the memory mapping is
non-cacheable, it's low efficiency due to every load instruction must
reach out DRAM.

This patch changes to allocate pages with dma_alloc_noncoherent(), the
driver can access the memory via cacheable mapping; therefore, load
instructions can fetch data from cache lines rather than always read
data from DRAM, the driver can boost memory performance.  After using
the cacheable mapping, the driver uses dma_sync_single_for_cpu() to
invalidate cacheline prior to read bounce buffer so can avoid read stale
trace data.

By measurement the duration for function tmc_update_etr_buffer() with
ftrace function_graph tracer, it shows the performance significant
improvement for copying 4MiB data from bounce buffer:

  # echo tmc_etr_get_data_flat_buf > set_graph_notrace // avoid noise
  # echo tmc_update_etr_buffer > set_graph_function
  # echo function_graph > current_tracer

  before:

  # CPU  DURATION                  FUNCTION CALLS
  # |     |   |                     |   |   |   |
  2)               |    tmc_update_etr_buffer() {
  ...
  2) # 8148.320 us |    }

  after:

  # CPU  DURATION                  FUNCTION CALLS
  # |     |   |                     |   |   |   |
  2)               |  tmc_update_etr_buffer() {
  ...
  2) # 2525.420 us |  }

Bug: 213931796
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210905032144.966766-1-leo.yan@linaro.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit 0abd076217a39c4abc47dcd84d0c8f491f87cbe7)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I271f3882e1bdafb8053aecdb0948584a287b499f
---
 .../hwtracing/coresight/coresight-tmc-etr.c   | 26 ++++++++++++++++---
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index ba621a9808fd2..ec092b605c631 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -609,8 +609,9 @@ static int tmc_etr_alloc_flat_buf(struct tmc_drvdata *drvdata,
 	if (!flat_buf)
 		return -ENOMEM;
 
-	flat_buf->vaddr = dma_alloc_coherent(real_dev, etr_buf->size,
-					     &flat_buf->daddr, GFP_KERNEL);
+	flat_buf->vaddr = dma_alloc_noncoherent(real_dev, etr_buf->size,
+						&flat_buf->daddr,
+						DMA_FROM_DEVICE, GFP_KERNEL);
 	if (!flat_buf->vaddr) {
 		kfree(flat_buf);
 		return -ENOMEM;
@@ -631,14 +632,18 @@ static void tmc_etr_free_flat_buf(struct etr_buf *etr_buf)
 	if (flat_buf && flat_buf->daddr) {
 		struct device *real_dev = flat_buf->dev->parent;
 
-		dma_free_coherent(real_dev, flat_buf->size,
-				  flat_buf->vaddr, flat_buf->daddr);
+		dma_free_noncoherent(real_dev, etr_buf->size,
+				     flat_buf->vaddr, flat_buf->daddr,
+				     DMA_FROM_DEVICE);
 	}
 	kfree(flat_buf);
 }
 
 static void tmc_etr_sync_flat_buf(struct etr_buf *etr_buf, u64 rrp, u64 rwp)
 {
+	struct etr_flat_buf *flat_buf = etr_buf->private;
+	struct device *real_dev = flat_buf->dev->parent;
+
 	/*
 	 * Adjust the buffer to point to the beginning of the trace data
 	 * and update the available trace data.
@@ -648,6 +653,19 @@ static void tmc_etr_sync_flat_buf(struct etr_buf *etr_buf, u64 rrp, u64 rwp)
 		etr_buf->len = etr_buf->size;
 	else
 		etr_buf->len = rwp - rrp;
+
+	/*
+	 * The driver always starts tracing at the beginning of the buffer,
+	 * the only reason why we would get a wrap around is when the buffer
+	 * is full.  Sync the entire buffer in one go for this case.
+	 */
+	if (etr_buf->offset + etr_buf->len > etr_buf->size)
+		dma_sync_single_for_cpu(real_dev, flat_buf->daddr,
+					etr_buf->size, DMA_FROM_DEVICE);
+	else
+		dma_sync_single_for_cpu(real_dev,
+					flat_buf->daddr + etr_buf->offset,
+					etr_buf->len, DMA_FROM_DEVICE);
 }
 
 static ssize_t tmc_etr_get_data_flat_buf(struct etr_buf *etr_buf,
-- 
GitLab


From 5e4d41823305143f933ef39c47f023a21469b777 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 14 Sep 2021 11:26:32 +0100
Subject: [PATCH 2833/4878] BACKPORT: coresight: etm4x: Save restore TRFCR_EL1

When the CPU enters a low power mode, the TRFCR_EL1 contents could be
reset. Thus we need to save/restore the TRFCR_EL1 along with the ETM4x
registers to allow the tracing.

The TRFCR related helpers are in a new header file, as we need to use
them for TRBE in the later patches.

Bug: 213931796
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210914102641.1852544-2-suzuki.poulose@arm.com
[Fixed cosmetic details]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit 937d3f58cacf377cab7c32e475e1ffa91d611dce)
[Conflict in in drivers/hwtracing/coresight/coresight-etm4x-core.c,
unnecessary new includes were removed]
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: If0d2b8625ffab0bfcd4afbe6fc8c6e7362c01c4a
---
 .../coresight/coresight-etm4x-core.c          | 43 +++++++++++++------
 drivers/hwtracing/coresight/coresight-etm4x.h |  2 +
 .../coresight/coresight-self-hosted-trace.h   | 24 +++++++++++
 3 files changed, 57 insertions(+), 12 deletions(-)
 create mode 100644 drivers/hwtracing/coresight/coresight-self-hosted-trace.h

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 6fee02bf7b710..ea4b8955c1ade 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -39,6 +39,7 @@
 
 #include "coresight-etm4x.h"
 #include "coresight-etm-perf.h"
+#include "coresight-self-hosted-trace.h"
 
 static int boot_enable;
 module_param(boot_enable, int, 0444);
@@ -990,7 +991,7 @@ static void cpu_enable_tracing(struct etmv4_drvdata *drvdata)
 	if (is_kernel_in_hyp_mode())
 		trfcr |= TRFCR_EL2_CX;
 
-	write_sysreg_s(trfcr, SYS_TRFCR_EL1);
+	write_trfcr(trfcr);
 }
 
 static void etm4_init_arch_data(void *info)
@@ -1528,7 +1529,7 @@ static void etm4_init_trace_id(struct etmv4_drvdata *drvdata)
 	drvdata->trcid = coresight_get_trace_id(drvdata->cpu);
 }
 
-static int etm4_cpu_save(struct etmv4_drvdata *drvdata)
+static int __etm4_cpu_save(struct etmv4_drvdata *drvdata)
 {
 	int i, ret = 0;
 	struct etmv4_save_state *state;
@@ -1667,7 +1668,23 @@ out:
 	return ret;
 }
 
-static void etm4_cpu_restore(struct etmv4_drvdata *drvdata)
+static int etm4_cpu_save(struct etmv4_drvdata *drvdata)
+{
+	int ret = 0;
+
+	/* Save the TRFCR irrespective of whether the ETM is ON */
+	if (drvdata->trfc)
+		drvdata->save_trfcr = read_trfcr();
+	/*
+	 * Save and restore the ETM Trace registers only if
+	 * the ETM is active.
+	 */
+	if (local_read(&drvdata->mode) && drvdata->save_state)
+		ret = __etm4_cpu_save(drvdata);
+	return ret;
+}
+
+static void __etm4_cpu_restore(struct etmv4_drvdata *drvdata)
 {
 	int i;
 	struct etmv4_save_state *state = drvdata->save_state;
@@ -1763,6 +1780,14 @@ static void etm4_cpu_restore(struct etmv4_drvdata *drvdata)
 	etm4_cs_lock(drvdata, csa);
 }
 
+static void etm4_cpu_restore(struct etmv4_drvdata *drvdata)
+{
+	if (drvdata->trfc)
+		write_trfcr(drvdata->save_trfcr);
+	if (drvdata->state_needs_restore)
+		__etm4_cpu_restore(drvdata);
+}
+
 static int etm4_cpu_pm_notify(struct notifier_block *nb, unsigned long cmd,
 			      void *v)
 {
@@ -1774,23 +1799,17 @@ static int etm4_cpu_pm_notify(struct notifier_block *nb, unsigned long cmd,
 
 	drvdata = etmdrvdata[cpu];
 
-	if (!drvdata->save_state)
-		return NOTIFY_OK;
-
 	if (WARN_ON_ONCE(drvdata->cpu != cpu))
 		return NOTIFY_BAD;
 
 	switch (cmd) {
 	case CPU_PM_ENTER:
-		/* save the state if self-hosted coresight is in use */
-		if (local_read(&drvdata->mode))
-			if (etm4_cpu_save(drvdata))
-				return NOTIFY_BAD;
+		if (etm4_cpu_save(drvdata))
+			return NOTIFY_BAD;
 		break;
 	case CPU_PM_EXIT:
 	case CPU_PM_ENTER_FAILED:
-		if (drvdata->state_needs_restore)
-			etm4_cpu_restore(drvdata);
+		etm4_cpu_restore(drvdata);
 		break;
 	default:
 		return NOTIFY_DONE;
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index e5b79bdb9851c..82cba16b73a66 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -921,6 +921,7 @@ struct etmv4_save_state {
  * @lpoverride:	If the implementation can support low-power state over.
  * @trfc:	If the implementation supports Arm v8.4 trace filter controls.
  * @config:	structure holding configuration parameters.
+ * @save_trfcr:	Saved TRFCR_EL1 register during a CPU PM event.
  * @save_state:	State to be preserved across power loss
  * @state_needs_restore: True when there is context to restore after PM exit
  * @skip_power_up: Indicates if an implementation can skip powering up
@@ -973,6 +974,7 @@ struct etmv4_drvdata {
 	bool				lpoverride;
 	bool				trfc;
 	struct etmv4_config		config;
+	u64				save_trfcr;
 	struct etmv4_save_state		*save_state;
 	bool				state_needs_restore;
 	bool				skip_power_up;
diff --git a/drivers/hwtracing/coresight/coresight-self-hosted-trace.h b/drivers/hwtracing/coresight/coresight-self-hosted-trace.h
new file mode 100644
index 0000000000000..303d71911870f
--- /dev/null
+++ b/drivers/hwtracing/coresight/coresight-self-hosted-trace.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Arm v8 Self-Hosted trace support.
+ *
+ * Copyright (C) 2021 ARM Ltd.
+ */
+
+#ifndef __CORESIGHT_SELF_HOSTED_TRACE_H
+#define __CORESIGHT_SELF_HOSTED_TRACE_H
+
+#include <asm/sysreg.h>
+
+static inline u64 read_trfcr(void)
+{
+	return read_sysreg_s(SYS_TRFCR_EL1);
+}
+
+static inline void write_trfcr(u64 val)
+{
+	write_sysreg_s(val, SYS_TRFCR_EL1);
+	isb();
+}
+
+#endif /*  __CORESIGHT_SELF_HOSTED_TRACE_H */
-- 
GitLab


From 262bfd89ed3ce52131d66eb597fe6579b18ecb6e Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 14 Sep 2021 11:26:33 +0100
Subject: [PATCH 2834/4878] UPSTREAM: coresight: etm4x: Use Trace Filtering
 controls dynamically

The Trace Filtering support (FEAT_TRF) ensures that the ETM
can be prohibited from generating any trace for a given EL.
This is much stricter knob, than the TRCVICTLR exception level
masks, which doesn't prevent the ETM from generating Context
packets for an "excluded" EL. At the moment, we do a onetime
enable trace at user and kernel and leave it untouched for the
kernel life time. This implies that the ETM could potentially
generate trace packets containing the kernel addresses, and
thus leaking the kernel virtual address in the trace.

This patch makes the switch dynamic, by honoring the filters
set by the user and enforcing them in the TRFCR controls.
We also rename the cpu_enable_tracing() appropriately to
cpu_detect_trace_filtering() and the drvdata member
trfc => trfcr to indicate the "value" of the TRFCR_EL1.

Bug: 213931796
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Al Grant <al.grant@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20210914102641.1852544-3-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit 5f6fd1aa8cc147b111af1a833574487a87237dc0)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I20432aa7cfd4375e1cdb9d256a2adc9df548d68e
---
 .../coresight/coresight-etm4x-core.c          | 63 ++++++++++++++-----
 drivers/hwtracing/coresight/coresight-etm4x.h |  7 ++-
 .../coresight/coresight-self-hosted-trace.h   |  7 +++
 3 files changed, 59 insertions(+), 18 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index ea4b8955c1ade..bfcf9e0415c26 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -237,6 +237,45 @@ struct etm4_enable_arg {
 	int rc;
 };
 
+/*
+ * etm4x_prohibit_trace - Prohibit the CPU from tracing at all ELs.
+ * When the CPU supports FEAT_TRF, we could move the ETM to a trace
+ * prohibited state by filtering the Exception levels via TRFCR_EL1.
+ */
+static void etm4x_prohibit_trace(struct etmv4_drvdata *drvdata)
+{
+	/* If the CPU doesn't support FEAT_TRF, nothing to do */
+	if (!drvdata->trfcr)
+		return;
+	cpu_prohibit_trace();
+}
+
+/*
+ * etm4x_allow_trace - Allow CPU tracing in the respective ELs,
+ * as configured by the drvdata->config.mode for the current
+ * session. Even though we have TRCVICTLR bits to filter the
+ * trace in the ELs, it doesn't prevent the ETM from generating
+ * a packet (e.g, TraceInfo) that might contain the addresses from
+ * the excluded levels. Thus we use the additional controls provided
+ * via the Trace Filtering controls (FEAT_TRF) to make sure no trace
+ * is generated for the excluded ELs.
+ */
+static void etm4x_allow_trace(struct etmv4_drvdata *drvdata)
+{
+	u64 trfcr = drvdata->trfcr;
+
+	/* If the CPU doesn't support FEAT_TRF, nothing to do */
+	if (!trfcr)
+		return;
+
+	if (drvdata->config.mode & ETM_MODE_EXCL_KERN)
+		trfcr &= ~TRFCR_ELx_ExTRE;
+	if (drvdata->config.mode & ETM_MODE_EXCL_USER)
+		trfcr &= ~TRFCR_ELx_E0TRE;
+
+	write_trfcr(trfcr);
+}
+
 #ifdef CONFIG_ETM4X_IMPDEF_FEATURE
 
 #define HISI_HIP08_AMBA_ID		0x000b6d01
@@ -441,6 +480,7 @@ static int etm4_enable_hw(struct etmv4_drvdata *drvdata)
 	if (etm4x_is_ete(drvdata))
 		etm4x_relaxed_write32(csa, TRCRSR_TA, TRCRSR);
 
+	etm4x_allow_trace(drvdata);
 	/* Enable the trace unit */
 	etm4x_relaxed_write32(csa, 1, TRCPRGCTLR);
 
@@ -724,7 +764,6 @@ static int etm4_enable(struct coresight_device *csdev,
 static void etm4_disable_hw(void *info)
 {
 	u32 control;
-	u64 trfcr;
 	struct etmv4_drvdata *drvdata = info;
 	struct etmv4_config *config = &drvdata->config;
 	struct coresight_device *csdev = drvdata->csdev;
@@ -751,12 +790,7 @@ static void etm4_disable_hw(void *info)
 	 * If the CPU supports v8.4 Trace filter Control,
 	 * set the ETM to trace prohibited region.
 	 */
-	if (drvdata->trfc) {
-		trfcr = read_sysreg_s(SYS_TRFCR_EL1);
-		write_sysreg_s(trfcr & ~(TRFCR_ELx_ExTRE | TRFCR_ELx_E0TRE),
-			       SYS_TRFCR_EL1);
-		isb();
-	}
+	etm4x_prohibit_trace(drvdata);
 	/*
 	 * Make sure everything completes before disabling, as recommended
 	 * by section 7.3.77 ("TRCVICTLR, ViewInst Main Control Register,
@@ -772,9 +806,6 @@ static void etm4_disable_hw(void *info)
 	if (coresight_timeout(csa, TRCSTATR, TRCSTATR_PMSTABLE_BIT, 1))
 		dev_err(etm_dev,
 			"timeout while waiting for PM stable Trace Status\n");
-	if (drvdata->trfc)
-		write_sysreg_s(trfcr, SYS_TRFCR_EL1);
-
 	/* read the status of the single shot comparators */
 	for (i = 0; i < drvdata->nr_ss_cmp; i++) {
 		config->ss_status[i] =
@@ -969,15 +1000,15 @@ static bool etm4_init_csdev_access(struct etmv4_drvdata *drvdata,
 	return false;
 }
 
-static void cpu_enable_tracing(struct etmv4_drvdata *drvdata)
+static void cpu_detect_trace_filtering(struct etmv4_drvdata *drvdata)
 {
 	u64 dfr0 = read_sysreg(id_aa64dfr0_el1);
 	u64 trfcr;
 
+	drvdata->trfcr = 0;
 	if (!cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_TRACE_FILT_SHIFT))
 		return;
 
-	drvdata->trfc = true;
 	/*
 	 * If the CPU supports v8.4 SelfHosted Tracing, enable
 	 * tracing at the kernel EL and EL0, forcing to use the
@@ -991,7 +1022,7 @@ static void cpu_enable_tracing(struct etmv4_drvdata *drvdata)
 	if (is_kernel_in_hyp_mode())
 		trfcr |= TRFCR_EL2_CX;
 
-	write_trfcr(trfcr);
+	drvdata->trfcr = trfcr;
 }
 
 static void etm4_init_arch_data(void *info)
@@ -1177,7 +1208,7 @@ static void etm4_init_arch_data(void *info)
 	/* NUMCNTR, bits[30:28] number of counters available for tracing */
 	drvdata->nr_cntr = BMVAL(etmidr5, 28, 30);
 	etm4_cs_lock(drvdata, csa);
-	cpu_enable_tracing(drvdata);
+	cpu_detect_trace_filtering(drvdata);
 }
 
 static inline u32 etm4_get_victlr_access_type(struct etmv4_config *config)
@@ -1673,7 +1704,7 @@ static int etm4_cpu_save(struct etmv4_drvdata *drvdata)
 	int ret = 0;
 
 	/* Save the TRFCR irrespective of whether the ETM is ON */
-	if (drvdata->trfc)
+	if (drvdata->trfcr)
 		drvdata->save_trfcr = read_trfcr();
 	/*
 	 * Save and restore the ETM Trace registers only if
@@ -1782,7 +1813,7 @@ static void __etm4_cpu_restore(struct etmv4_drvdata *drvdata)
 
 static void etm4_cpu_restore(struct etmv4_drvdata *drvdata)
 {
-	if (drvdata->trfc)
+	if (drvdata->trfcr)
 		write_trfcr(drvdata->save_trfcr);
 	if (drvdata->state_needs_restore)
 		__etm4_cpu_restore(drvdata);
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index 82cba16b73a66..3c4d69b096ca5 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -919,7 +919,10 @@ struct etmv4_save_state {
  * @nooverflow:	Indicate if overflow prevention is supported.
  * @atbtrig:	If the implementation can support ATB triggers
  * @lpoverride:	If the implementation can support low-power state over.
- * @trfc:	If the implementation supports Arm v8.4 trace filter controls.
+ * @trfcr:	If the CPU supports FEAT_TRF, value of the TRFCR_ELx that
+ *		allows tracing at all ELs. We don't want to compute this
+ *		at runtime, due to the additional setting of TRFCR_CX when
+ *		in EL2. Otherwise, 0.
  * @config:	structure holding configuration parameters.
  * @save_trfcr:	Saved TRFCR_EL1 register during a CPU PM event.
  * @save_state:	State to be preserved across power loss
@@ -972,7 +975,7 @@ struct etmv4_drvdata {
 	bool				nooverflow;
 	bool				atbtrig;
 	bool				lpoverride;
-	bool				trfc;
+	u64				trfcr;
 	struct etmv4_config		config;
 	u64				save_trfcr;
 	struct etmv4_save_state		*save_state;
diff --git a/drivers/hwtracing/coresight/coresight-self-hosted-trace.h b/drivers/hwtracing/coresight/coresight-self-hosted-trace.h
index 303d71911870f..23f05df3f1730 100644
--- a/drivers/hwtracing/coresight/coresight-self-hosted-trace.h
+++ b/drivers/hwtracing/coresight/coresight-self-hosted-trace.h
@@ -21,4 +21,11 @@ static inline void write_trfcr(u64 val)
 	isb();
 }
 
+static inline void cpu_prohibit_trace(void)
+{
+	u64 trfcr = read_trfcr();
+
+	/* Prohibit tracing at EL0 & the kernel EL */
+	write_trfcr(trfcr & ~(TRFCR_ELx_ExTRE | TRFCR_ELx_E0TRE));
+}
 #endif /*  __CORESIGHT_SELF_HOSTED_TRACE_H */
-- 
GitLab


From af2c988091dce979cbd193737ec24b6c52418315 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Thu, 14 Oct 2021 15:22:38 +0100
Subject: [PATCH 2835/4878] UPSTREAM: coresight: trbe: Defer the probe on
 offline CPUs

If a CPU is offline during the driver init, we could end up causing
a kernel crash trying to register the coresight device for the TRBE
instance. The trbe_cpudata for the TRBE instance is initialized only
when it is probed. Otherwise, we could end up dereferencing a NULL
cpudata->drvdata.

e.g:

[    0.149999] coresight ete0: CPU0: ete v1.1 initialized
[    0.149999] coresight-etm4x ete_1: ETM arch init failed
[    0.149999] coresight-etm4x: probe of ete_1 failed with error -22
[    0.150085] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050
[    0.150085] Mem abort info:
[    0.150085]   ESR = 0x96000005
[    0.150085]   EC = 0x25: DABT (current EL), IL = 32 bits
[    0.150085]   SET = 0, FnV = 0
[    0.150085]   EA = 0, S1PTW = 0
[    0.150085] Data abort info:
[    0.150085]   ISV = 0, ISS = 0x00000005
[    0.150085]   CM = 0, WnR = 0
[    0.150085] [0000000000000050] user address but active_mm is swapper
[    0.150085] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[    0.150085] Modules linked in:
[    0.150085] Hardware name: FVP Base RevC (DT)
[    0.150085] pstate: 00800009 (nzcv daif -PAN +UAO -TCO BTYPE=--)
[    0.150155] pc : arm_trbe_register_coresight_cpu+0x74/0x144
[    0.150155] lr : arm_trbe_register_coresight_cpu+0x48/0x144
  ...

[    0.150237] Call trace:
[    0.150237]  arm_trbe_register_coresight_cpu+0x74/0x144
[    0.150237]  arm_trbe_device_probe+0x1c0/0x2d8
[    0.150259]  platform_drv_probe+0x94/0xbc
[    0.150259]  really_probe+0x1bc/0x4a8
[    0.150266]  driver_probe_device+0x7c/0xb8
[    0.150266]  device_driver_attach+0x6c/0xac
[    0.150266]  __driver_attach+0xc4/0x148
[    0.150266]  bus_for_each_dev+0x7c/0xc8
[    0.150266]  driver_attach+0x24/0x30
[    0.150266]  bus_add_driver+0x100/0x1e0
[    0.150266]  driver_register+0x78/0x110
[    0.150266]  __platform_driver_register+0x44/0x50
[    0.150266]  arm_trbe_init+0x28/0x84
[    0.150266]  do_one_initcall+0x94/0x2bc
[    0.150266]  do_initcall_level+0xa4/0x158
[    0.150266]  do_initcalls+0x54/0x94
[    0.150319]  do_basic_setup+0x24/0x30
[    0.150319]  kernel_init_freeable+0xe8/0x14c
[    0.150319]  kernel_init+0x14/0x18c
[    0.150319]  ret_from_fork+0x10/0x30
[    0.150319] Code: f94012c8 b0004ce2 9134a442 52819801 (f9402917)
[    0.150319] ---[ end trace d23e0cfe5098535e ]---
[    0.150346] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

Fix this by skipping the step, if we are unable to probe the CPU.

Bug: 213931796
Fixes: 3fbf7f011f24 ("coresight: sink: Add TRBE driver")
Reported-by: Bransilav Rankov <branislav.rankov@arm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: stable <stable@vger.kernel.org>
Tested-by: Branislav Rankov <branislav.rankov@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20211014142238.2221248-1-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit a08025b3fe56185290a1ea476581f03ca733f967)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: Iea490213245f9f486c775398dd2972311d204a7e
---
 drivers/hwtracing/coresight/coresight-trbe.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index 1768684968797..7b8fed7b63cc2 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -869,6 +869,10 @@ static void arm_trbe_register_coresight_cpu(struct trbe_drvdata *drvdata, int cp
 	if (WARN_ON(trbe_csdev))
 		return;
 
+	/* If the TRBE was not probed on the CPU, we shouldn't be here */
+	if (WARN_ON(!cpudata->drvdata))
+		return;
+
 	dev = &cpudata->drvdata->pdev->dev;
 	desc.name = devm_kasprintf(dev, GFP_KERNEL, "trbe%d", cpu);
 	if (!desc.name)
@@ -950,7 +954,9 @@ static int arm_trbe_probe_coresight(struct trbe_drvdata *drvdata)
 		return -ENOMEM;
 
 	for_each_cpu(cpu, &drvdata->supported_cpus) {
-		smp_call_function_single(cpu, arm_trbe_probe_cpu, drvdata, 1);
+		/* If we fail to probe the CPU, let us defer it to hotplug callbacks */
+		if (smp_call_function_single(cpu, arm_trbe_probe_cpu, drvdata, 1))
+			continue;
 		if (cpumask_test_cpu(cpu, &drvdata->supported_cpus))
 			arm_trbe_register_coresight_cpu(drvdata, cpu);
 		if (cpumask_test_cpu(cpu, &drvdata->supported_cpus))
-- 
GitLab


From d92823b63b2a71e04c8a336bb844133946f467fe Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 19 Oct 2021 17:31:39 +0100
Subject: [PATCH 2836/4878] UPSTREAM: arm64: Add Neoverse-N2, Cortex-A710 CPU
 part definition

Add the CPU Partnumbers for the new Arm designs.

Bug: 213931796
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211019163153.3692640-2-suzuki.poulose@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 2d0d656700d67239a57afaf617439143d8dac9be)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I3bdd17992299ea5a5d2e31d9e8cf84a4bd554cdc
---
 arch/arm64/include/asm/cputype.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 6231e1f0abe7e..19b8441aa8f26 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -73,6 +73,8 @@
 #define ARM_CPU_PART_CORTEX_A76		0xD0B
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
+#define ARM_CPU_PART_CORTEX_A710	0xD47
+#define ARM_CPU_PART_NEOVERSE_N2	0xD49
 
 #define APM_CPU_PART_POTENZA		0x000
 
@@ -113,6 +115,8 @@
 #define MIDR_CORTEX_A76	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
+#define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
-- 
GitLab


From a5bf62aaed069a2582e25af1bda15343cd119219 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 19 Oct 2021 17:31:41 +0100
Subject: [PATCH 2837/4878] BACKPORT: arm64: errata: Add workaround for TSB
 flush failures

Arm Neoverse-N2 (#2067961) and Cortex-A710 (#2054223) suffers
from errata, where a TSB (trace synchronization barrier)
fails to flush the trace data completely, when executed from
a trace prohibited region. In Linux we always execute it
after we have moved the PE to trace prohibited region. So,
we can apply the workaround every time a TSB is executed.

The work around is to issue two TSB consecutively.

NOTE: This errata is defined as LOCAL_CPU_ERRATUM, implying
that a late CPU could be blocked from booting if it is the
first CPU that requires the workaround. This is because we
do not allow setting a cpu_hwcaps after the SMP boot. The
other alternative is to use "this_cpu_has_cap()" instead
of the faster system wide check, which may be a bit of an
overhead, given we may have to do this in nvhe KVM host
before a guest entry.

Bug: 213931796
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211019163153.3692640-4-suzuki.poulose@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit fa82d0b4b833790ac4572377fb777dcea24a9d69)
[Fix conflict due to another workaround that is not backported
(TRBE_OVERWRITE). Also manually update cpucaps.h which is autogenerated
in upstream from arch/arm64/tools/cpucaps which we ignored as part of
the conflict resolution]
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: I37403e5a51de2b7015ee6e3e94ee690e66010890
---
 Documentation/arm64/silicon-errata.rst |  4 ++++
 arch/arm64/Kconfig                     | 33 ++++++++++++++++++++++++++
 arch/arm64/include/asm/barrier.h       | 16 ++++++++++++-
 arch/arm64/include/asm/cpucaps.h       |  1 +
 arch/arm64/kernel/cpu_errata.c         | 19 +++++++++++++++
 5 files changed, 72 insertions(+), 1 deletion(-)

diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
index 7195102472929..5a30b1857420d 100644
--- a/Documentation/arm64/silicon-errata.rst
+++ b/Documentation/arm64/silicon-errata.rst
@@ -92,12 +92,16 @@ stable kernels.
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A77      | #1508412        | ARM64_ERRATUM_1508412       |
 +----------------+-----------------+-----------------+-----------------------------+
+| ARM            | Cortex-A710     | #2054223        | ARM64_ERRATUM_2054223       |
++----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Neoverse-N1     | #1188873,1418040| ARM64_ERRATUM_1418040       |
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Neoverse-N1     | #1349291        | N/A                         |
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Neoverse-N1     | #1542419        | ARM64_ERRATUM_1542419       |
 +----------------+-----------------+-----------------+-----------------------------+
+| ARM            | Neoverse-N2     | #2067961        | ARM64_ERRATUM_2067961       |
++----------------+-----------------+-----------------+-----------------------------+
 | ARM            | MMU-500         | #841119,826419  | N/A                         |
 +----------------+-----------------+-----------------+-----------------------------+
 +----------------+-----------------+-----------------+-----------------------------+
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 7690d3a65e312..8274bd349d388 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -670,6 +670,39 @@ config ARM64_ERRATUM_1508412
 
 	  If unsure, say Y.
 
+config ARM64_WORKAROUND_TSB_FLUSH_FAILURE
+	bool
+
+config ARM64_ERRATUM_2054223
+	bool "Cortex-A710: 2054223: workaround TSB instruction failing to flush trace"
+	default y
+	select ARM64_WORKAROUND_TSB_FLUSH_FAILURE
+	help
+	  Enable workaround for ARM Cortex-A710 erratum 2054223
+
+	  Affected cores may fail to flush the trace data on a TSB instruction, when
+	  the PE is in trace prohibited state. This will cause losing a few bytes
+	  of the trace cached.
+
+	  Workaround is to issue two TSB consecutively on affected cores.
+
+	  If unsure, say Y.
+
+config ARM64_ERRATUM_2067961
+	bool "Neoverse-N2: 2067961: workaround TSB instruction failing to flush trace"
+	default y
+	select ARM64_WORKAROUND_TSB_FLUSH_FAILURE
+	help
+	  Enable workaround for ARM Neoverse-N2 erratum 2067961
+
+	  Affected cores may fail to flush the trace data on a TSB instruction, when
+	  the PE is in trace prohibited state. This will cause losing a few bytes
+	  of the trace cached.
+
+	  Workaround is to issue two TSB consecutively on affected cores.
+
+	  If unsure, say Y.
+
 config CAVIUM_ERRATUM_22375
 	bool "Cavium erratum 22375, 24313"
 	default y
diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index bffa8860af1c1..e9eeeb14485b7 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -23,7 +23,7 @@
 #define dsb(opt)	asm volatile("dsb " #opt : : : "memory")
 
 #define psb_csync()	asm volatile("hint #17" : : : "memory")
-#define tsb_csync()	asm volatile("hint #18" : : : "memory")
+#define __tsb_csync()	asm volatile("hint #18" : : : "memory")
 #define csdb()		asm volatile("hint #20" : : : "memory")
 
 #define spec_bar()	asm volatile(ALTERNATIVE("dsb nsh\nisb\n",		\
@@ -50,6 +50,20 @@
 #define dma_rmb()	dmb(oshld)
 #define dma_wmb()	dmb(oshst)
 
+
+#define tsb_csync()								\
+	do {									\
+		/*								\
+		 * CPUs affected by Arm Erratum 2054223 or 2067961 needs	\
+		 * another TSB to ensure the trace is flushed. The barriers	\
+		 * don't have to be strictly back to back, as long as the	\
+		 * CPU is in trace prohibited state.				\
+		 */								\
+		if (cpus_have_final_cap(ARM64_WORKAROUND_TSB_FLUSH_FAILURE))	\
+			__tsb_csync();						\
+		__tsb_csync();							\
+	} while (0)
+
 /*
  * Generate a mask for array_index__nospec() that is ~0UL when 0 <= idx < sz
  * and 0 otherwise.
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index 10a2d914d4caa..c0ff1d4bccabb 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -69,6 +69,7 @@
 #define ARM64_WORKAROUND_1508412		58
 #define ARM64_HAS_LDAPR				59
 #define ARM64_KVM_PROTECTED_MODE		60
+#define ARM64_WORKAROUND_TSB_FLUSH_FAILURE	61
 
 /* kabi: reserve 62 - 76 for future cpu capabilities */
 #define ARM64_NCAPS				76
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index a63428301f423..7c6d59c4f0993 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -342,6 +342,18 @@ static const struct midr_range erratum_1463225[] = {
 };
 #endif
 
+#ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
+static const struct midr_range tsb_flush_fail_cpus[] = {
+#ifdef CONFIG_ARM64_ERRATUM_2067961
+	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
+#endif
+#ifdef CONFIG_ARM64_ERRATUM_2054223
+	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
+#endif
+	{},
+};
+#endif	/* CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE */
+
 const struct arm64_cpu_capabilities arm64_errata[] = {
 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
 	{
@@ -527,6 +539,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 				  0, 0,
 				  1, 0),
 	},
+#endif
+#ifdef CONFIG_ARM64_WORKAROUND_TSB_FLUSH_FAILURE
+	{
+		.desc = "ARM erratum 2067961 or 2054223",
+		.capability = ARM64_WORKAROUND_TSB_FLUSH_FAILURE,
+		ERRATA_MIDR_RANGE_LIST(tsb_flush_fail_cpus),
+	},
 #endif
 	{
 	}
-- 
GitLab


From 870681ecd3252ba24ea3a354315bd9de01c5cc30 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 24 Jan 2022 19:40:37 +0000
Subject: [PATCH 2838/4878] Revert "ANDROID: GKI: update virtual device symbol
 list"

Reason for revert: Fails init on devices with no DICE DT nodes
Reverted Changes:
I035ad0998:ANDROID: GKI: update virtual device symbol list
I0b2ec380d:ANDROID: arm64: Enable CONFIG_OPEN_DICE=m

Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ieca199d3fa4ad5f574558f55d49a61be2f0a36ff
---
 android/abi_gki_aarch64_virtual_device | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 021e7e3513838..2716a11f4ccd4 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -640,11 +640,6 @@
   vlan_vids_add_by_dev
   vlan_vids_del_by_dev
 
-# required by open-dice.ko
-  devm_memremap
-  devm_memunmap
-  vm_iomap_memory
-
 # required by psmouse.ko
   bus_register_notifier
   bus_unregister_notifier
-- 
GitLab


From 2ca7f6ca9ae9d7a307f19f602e7e49462637246f Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Fri, 5 Feb 2021 14:01:25 -0800
Subject: [PATCH 2839/4878] UPSTREAM: Makefile: reuse CC_VERSION_TEXT

I noticed we're invoking $(CC) via $(shell) more than once to check the
version.  Let's reuse the first string captured in $CC_VERSION_TEXT.

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
[masahiro.yamada:
CC_VERSION_TEXT is assigned by = instead of :=, so this $(shell ) is
evaluated multiple times anyway. The number of $(CC) invocations will
be still the same. Replacing 'grep' with the built-in $(findstring )
will give real performance benefit.]
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit db07562aeac77923370bff4733d8b0e09cbc93c4)
Bug: 209655537
Change-Id: Ib8745c014472a9d63e51e98f9474cced778d57df
---
 Makefile | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index 48c699221b556..9f41e80385843 100644
--- a/Makefile
+++ b/Makefile
@@ -574,7 +574,13 @@ ifdef building_out_of_srctree
 	{ echo "# this is build directory, ignore it"; echo "*"; } > .gitignore
 endif
 
-ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
+# The expansion should be delayed until arch/$(SRCARCH)/Makefile is included.
+# Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
+# CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
+# and from include/config/auto.conf.cmd to detect the compiler upgrade.
+CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1)
+
+ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
 ifneq ($(CROSS_COMPILE),)
 CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
@@ -595,12 +601,6 @@ KBUILD_AFLAGS	+= $(CLANG_FLAGS)
 export CLANG_FLAGS
 endif
 
-# The expansion should be delayed until arch/$(SRCARCH)/Makefile is included.
-# Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
-# CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
-# and from include/config/auto.conf.cmd to detect the compiler upgrade.
-CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1)
-
 ifdef config-build
 # ===========================================================================
 # *config targets only - make sure prerequisites are updated, and descend
-- 
GitLab


From a0723f1fd041df872d3d852e688b23f4c6e6c4bc Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Tue, 16 Feb 2021 14:33:12 -0700
Subject: [PATCH 2840/4878] UPSTREAM: Makefile: Remove # characters from
 compiler string

When using AMD's Optimizing C/C++ Compiler (AOCC), the build fails due
to a # character in the version string, which is interpreted as a
comment:

$ make CC=clang defconfig init/main.o
include/config/auto.conf.cmd:1374: *** invalid syntax in conditional. Stop.

$ sed -n 1374p include/config/auto.conf.cmd
ifneq "$(CC_VERSION_TEXT)" "AMD clang version 11.0.0 (CLANG: AOCC_2.3.0-Build#85 2020_11_10) (based on LLVM Mirror.Version.11.0.0)"

Remove all # characters in the version string so that the build does not
fail unexpectedly.

Link: https://github.com/ClangBuiltLinux/linux/issues/1298
Reported-by: Michael Fuckner <michael@fuckner.net>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit c75173a26948363bdd11a0d5b90bd012ce4cc2e7)
Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Ie2ba7041325f13865b59b43517111674519ce386
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 9f41e80385843..c6f79b6f570e2 100644
--- a/Makefile
+++ b/Makefile
@@ -578,7 +578,7 @@ endif
 # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
 # CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
 # and from include/config/auto.conf.cmd to detect the compiler upgrade.
-CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1)
+CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1 | sed 's/\#//g')
 
 ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
 ifneq ($(CROSS_COMPILE),)
-- 
GitLab


From 8fe8aa47e49047deceaf9c33981e6135ee562f3e Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Wed, 10 Mar 2021 22:54:22 +0900
Subject: [PATCH 2841/4878] UPSTREAM: kbuild: remove LLVM=1 test from
 HAS_LTO_CLANG

As Documentation/kbuild/llvm.rst notes, LLVM=1 switches the default of
tools, but you can still override CC, LD, etc. individually. This LLVM=1
check is unneeded because each tool is already checked separately.

"make CC=clang LD=ld.lld NM=llvm-nm AR=llvm-ar LLVM_IAS=1 menuconfig"
should be able to enable Clang LTO.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Bug: 209655537
(cherry picked from commit 4c273d23c44ad49c73353737b303e78585a4503f)
Change-Id: Ieb1f4bbf98521b929c42253260a9a5aec25e73e2
---
 arch/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index c3a40c57f40ac..0ffd97454294d 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -643,7 +643,6 @@ config HAS_LTO_CLANG
 	def_bool y
 	# Clang >= 11: https://github.com/ClangBuiltLinux/linux/issues/510
 	depends on CC_IS_CLANG && CLANG_VERSION >= 110000 && LD_IS_LLD
-	depends on $(success,test $(LLVM) -eq 1)
 	depends on $(success,test $(LLVM_IAS) -eq 1)
 	depends on $(success,$(NM) --help | head -n 1 | grep -qi llvm)
 	depends on $(success,$(AR) --help | head -n 1 | grep -qi llvm)
-- 
GitLab


From f671c01fa7f7739065ed1ff234b99ba59842b174 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Tue, 16 Feb 2021 12:10:03 +0900
Subject: [PATCH 2842/4878] UPSTREAM: kbuild: remove ld-version macro

There is no direct user of ld-version; you can use CONFIG_LD_VERSION
if needed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Bug: 209655537
(cherry picked from commit 05f6bbf2d714309607d5533f0265a95d037610b4)
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: If7f82474beea2822340ee8503de5087336766223
---
 scripts/Kbuild.include | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 0d6e118207913..f0b6dbd3c7fea 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -141,13 +141,9 @@ cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || e
 # Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
 ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
 
-# ld-version
-# Note this is mainly for HJ Lu's 3 number binutil versions
-ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
-
 # ld-ifversion
 # Usage:  $(call ld-ifversion, -ge, 22252, y)
-ld-ifversion = $(shell [ $(ld-version) $(1) $(2) ] && echo $(3) || echo $(4))
+ld-ifversion = $(shell [ $(CONFIG_LD_VERSION)0 $(1) $(2)0 ] && echo $(3) || echo $(4))
 
 ######
 
-- 
GitLab


From f0a6553e1d8fe79a89fa0a2778acf32a874490df Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Tue, 9 Mar 2021 13:59:14 -0700
Subject: [PATCH 2843/4878] UPSTREAM: Makefile: Remove '--gcc-toolchain' flag

This flag was originally added to allow clang to find the GNU cross
tools in commit 785f11aa595b ("kbuild: Add better clang cross build
support"). This flag was not enough to find the tools at times so
'--prefix' was added to the list in commit ef8c4ed9db80 ("kbuild: allow
to use GCC toolchain not in Clang search path") and improved upon in
commit ca9b31f6bb9c ("Makefile: Fix GCC_TOOLCHAIN_DIR prefix for Clang
cross compilation"). Now that '--prefix' specifies a full path and
prefix, '--gcc-toolchain' serves no purpose because the kernel builds
with '-nostdinc' and '-nostdlib'.

This has been verified with self compiled LLVM 10.0.1 and LLVM 13.0.0 as
well as a distribution version of LLVM 11.1.0 without binutils in the
LLVM toolchain locations.

Link: https://reviews.llvm.org/D97902
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit c91d4e47e10ee4d3163838b1b727fe1d0664115b)
Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Ie1f64ed8562964ceba21e402a3d97850f6471508
---
 Makefile | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/Makefile b/Makefile
index c6f79b6f570e2..2494afaa8eafd 100644
--- a/Makefile
+++ b/Makefile
@@ -585,10 +585,6 @@ ifneq ($(CROSS_COMPILE),)
 CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
 CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
-GCC_TOOLCHAIN	:= $(realpath $(GCC_TOOLCHAIN_DIR)/..)
-endif
-ifneq ($(GCC_TOOLCHAIN),)
-CLANG_FLAGS	+= --gcc-toolchain=$(GCC_TOOLCHAIN)
 endif
 ifeq ($(LLVM_IAS),1)
 CLANG_FLAGS	+= -integrated-as
-- 
GitLab


From 26a2046334deb80dcb438360ec2cf615d9a0edc8 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Tue, 9 Mar 2021 13:59:15 -0700
Subject: [PATCH 2844/4878] UPSTREAM: Makefile: Only specify '--prefix=' when
 building with clang + GNU as

When building with LLVM_IAS=1, there is no point to specifying
'--prefix=' because that flag is only used to find GNU cross tools,
which will not be used indirectly when using the integrated assembler.
All of the tools are invoked directly from PATH or a full path specified
via the command line, which does not depend on the value of '--prefix='.

Sharing commands to reproduce issues becomes a little bit easier without
a '--prefix=' value because that '--prefix=' value is specific to a
user's machine due to it being an absolute path.

Some further notes from Fangrui Song:

  clang can spawn GNU as (if -f?no-integrated-as is specified) and GNU
  objcopy (-f?no-integrated-as and -gsplit-dwarf and -g[123]).
  objcopy is only used for GNU as assembled object files.
  With integrated assembler, the object file streamer creates .o and
  .dwo simultaneously.
  With GNU as, two objcopy commands are needed to extract .debug*.dwo to
  .dwo files && another command to remove .debug*.dwo sections.

A small consequence of this change (to keep things simple) is that
'--prefix=' will always be specified now, even with a native build, when
it was not before. This should not be an issue due to the way that the
Makefile searches for the prefix (based on elfedit's location). This
ends up improving the experience for host builds because PATH is better
respected and matches GCC's behavior more closely. See the below thread
for more details:

https://lore.kernel.org/r/20210205213651.GA16907@Ryzen-5-4500U.localdomain/

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit eec08090bcc113643522d4272dc0b945045aba74)
Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I90f232a1551afb9118176a61ac5de38384a171fd
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 2494afaa8eafd..7e9db2667676e 100644
--- a/Makefile
+++ b/Makefile
@@ -583,13 +583,13 @@ CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1 | sed 's/\#//g
 ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
 ifneq ($(CROSS_COMPILE),)
 CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
-GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
-CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
 endif
 ifeq ($(LLVM_IAS),1)
 CLANG_FLAGS	+= -integrated-as
 else
 CLANG_FLAGS	+= -no-integrated-as
+GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
+CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
 endif
 CLANG_FLAGS	+= -Werror=unknown-warning-option
 KBUILD_CFLAGS	+= $(CLANG_FLAGS)
-- 
GitLab


From 0e5e792a0e90cc773379a1434a154b4700f11f5d Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sun, 14 Mar 2021 15:15:50 +0900
Subject: [PATCH 2845/4878] UPSTREAM: kbuild: replace sed with $(subst ) or
 $(patsubst )

For simple text replacement, it is better to use a built-in function
instead of sed if possible. You can save one process forking.

I do not mean to replace all sed invocations because GNU Make itself
does not support regular expression (unless you use guile).

I just replaced simple ones.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit 6e0839fda3f8598b164a7f23f3eec039e2db5fbc)
Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I92c893dfb17055db0b8a8ca2f39ddfa5f31a118d
---
 Documentation/devicetree/bindings/Makefile | 2 +-
 Makefile                                   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index f50420099a553..68764fe4fd3cb 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -48,7 +48,7 @@ define rule_chkdt
 	$(call cmd,mk_schema)
 endef
 
-DT_DOCS = $(shell $(find_cmd) | sed -e 's|^$(srctree)/||')
+DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_cmd)))
 
 override DTC_FLAGS := \
 	-Wno-avoid_unnecessary_addr_size \
diff --git a/Makefile b/Makefile
index 7e9db2667676e..221701cc946b2 100644
--- a/Makefile
+++ b/Makefile
@@ -578,7 +578,7 @@ endif
 # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
 # CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
 # and from include/config/auto.conf.cmd to detect the compiler upgrade.
-CC_VERSION_TEXT = $(shell $(CC) --version 2>/dev/null | head -n 1 | sed 's/\#//g')
+CC_VERSION_TEXT = $(subst $(pound),,$(shell $(CC) --version 2>/dev/null | head -n 1))
 
 ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
 ifneq ($(CROSS_COMPILE),)
-- 
GitLab


From 5f94c8bd74917b34027da0c0a4c1b1a3d95ec967 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sun, 28 Feb 2021 15:10:26 +0900
Subject: [PATCH 2846/4878] BACKPORT: kbuild: prefix $(srctree)/ to some
 included Makefiles

VPATH is used in Kbuild to make pattern rules search for prerequisites
in both $(objtree) and $(srctree). Some of *.c, *.S files are not real
sources, but generated by tools such as flex, bison, perl.

In contrast, I doubt the benefit of --include-dir=$(abs_srctree) because
it is always clear which Makefiles are real sources, and which are not.

So, my hope is to add $(srctree)/ prefix to all check-in Makefiles,
then remove --include-dir=$(abs_srctree) flag in the future.

I am touching only some Kbuild core parts for now. Treewide fixes will
be needed to achieve this goal.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit 3204a7fb98a3bccd0004ea0f2769fbeadc2c2dba)
[nd: conflict in scripts/Makefile.modpost due to d7a956441fef, which is
itself a backport of 850ded46c642]
Bug: 189327973
Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I691d266b68d769ec0fabcc98ed515cfb1cad5ccf
---
 Makefile                     | 8 ++++----
 scripts/Makefile.asm-generic | 4 ++--
 scripts/Makefile.build       | 8 ++++----
 scripts/Makefile.clean       | 2 +-
 scripts/Makefile.dtbinst     | 2 +-
 scripts/Makefile.headersinst | 2 +-
 scripts/Makefile.modinst     | 2 +-
 scripts/Makefile.modpost     | 2 +-
 scripts/Makefile.modsign     | 2 +-
 9 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/Makefile b/Makefile
index 221701cc946b2..71703c3963959 100644
--- a/Makefile
+++ b/Makefile
@@ -354,14 +354,14 @@ __build_one_by_one:
 
 else # !mixed-build
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
 
-include scripts/subarch.include
+include $(srctree)/scripts/subarch.include
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------
@@ -605,7 +605,7 @@ ifdef config-build
 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
 # KBUILD_DEFCONFIG may point out an alternative default configuration
 # used for 'make defconfig'
-include arch/$(SRCARCH)/Makefile
+include $(srctree)/arch/$(SRCARCH)/Makefile
 export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERSION_TEXT
 
 config: outputmakefile scripts_basic FORCE
@@ -693,7 +693,7 @@ RETPOLINE_VDSO_CFLAGS := $(call cc-option,$(RETPOLINE_VDSO_CFLAGS_GCC),$(call cc
 export RETPOLINE_CFLAGS
 export RETPOLINE_VDSO_CFLAGS
 
-include arch/$(SRCARCH)/Makefile
+include $(srctree)/arch/$(SRCARCH)/Makefile
 
 ifdef need-config
 ifdef may-sync-config
diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index 82ad63dcd62b4..1d501c57f9eff 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -14,10 +14,10 @@ src := $(subst /generated,,$(obj))
 
 # $(generic)/Kbuild lists mandatory-y. Exclude um since it is a special case.
 ifneq ($(SRCARCH),um)
-include $(generic)/Kbuild
+include $(srctree)/$(generic)/Kbuild
 endif
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 redundant := $(filter $(mandatory-y) $(generated-y), $(generic-y))
 redundant += $(foreach f, $(generic-y), $(if $(wildcard $(srctree)/$(src)/$(f)),$(f)))
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 40bff93c824bf..41974a7b71168 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -36,27 +36,27 @@ subdir-ccflags-y :=
 # Read auto.conf if it exists, otherwise ignore
 -include include/config/auto.conf
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
 kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
 include $(kbuild-file)
 
-include scripts/Makefile.lib
+include $(srctree)/scripts/Makefile.lib
 
 # Do not include hostprogs rules unless needed.
 # $(sort ...) is used here to remove duplicated words and excessive spaces.
 hostprogs := $(sort $(hostprogs))
 ifneq ($(hostprogs),)
-include scripts/Makefile.host
+include $(srctree)/scripts/Makefile.host
 endif
 
 # Do not include userprogs rules unless needed.
 # $(sort ...) is used here to remove duplicated words and excessive spaces.
 userprogs := $(sort $(userprogs))
 ifneq ($(userprogs),)
-include scripts/Makefile.userprogs
+include $(srctree)/scripts/Makefile.userprogs
 endif
 
 ifndef obj
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index d9e0ceace6a64..7cab16b59eb04 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -8,7 +8,7 @@ src := $(obj)
 PHONY := __clean
 __clean:
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 50d580d77ae92..459e84edf6cf0 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -14,7 +14,7 @@ PHONY := __dtbs_install
 __dtbs_install:
 
 include include/config/auto.conf
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 include $(src)/Makefile
 
 dtbs    := $(addprefix $(dst)/, $(dtb-y) $(if $(CONFIG_OF_ALL_DTBS),$(dtb-)))
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 708fbd08a2c51..029d85bb0b237 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -12,7 +12,7 @@
 PHONY := __headers
 __headers:
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 src := $(srctree)/$(obj)
 gen := $(objtree)/$(subst include/,include/generated/,$(obj))
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 5a4579e76485c..ad1981233d0ba 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -6,7 +6,7 @@
 PHONY := __modinst
 __modinst:
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 modules := $(sort $(shell cat $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/)modules.order))
 
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 1be58a03bbad3..5d86843fff93c 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -41,7 +41,7 @@ PHONY := __modpost
 __modpost:
 
 include include/config/auto.conf
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 # for mod-prelink-ext
 include scripts/Makefile.lib
diff --git a/scripts/Makefile.modsign b/scripts/Makefile.modsign
index d7325cefe709d..ddf9b5ca77d74 100644
--- a/scripts/Makefile.modsign
+++ b/scripts/Makefile.modsign
@@ -6,7 +6,7 @@
 PHONY := __modsign
 __modsign:
 
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 modules := $(sort $(shell cat modules.order))
 
-- 
GitLab


From 7cb08715b6d0941d4c98124fa604b0fd565e3cfa Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sun, 28 Feb 2021 15:10:27 +0900
Subject: [PATCH 2847/4878] UPSTREAM: kbuild: split cc-option and friends to
 scripts/Makefile.compiler

scripts/Kbuild.include is included everywhere, but macros such as
cc-option are needed by build targets only.

For example, when 'make clean' traverses the tree, it does not need
to evaluate $(call cc-option,).

Split cc-option, ld-option, etc. to scripts/Makefile.compiler, which
is only included from the top Makefile and scripts/Makefile.build.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Bug: 209655537
(cherry picked from commit 57fd251c789647552d32d2fc51bedd4f90d70f9f)
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I7cef781922a192a9bcd21152a74ff2cec0527ab0
---
 Makefile                  |  4 ++
 scripts/Kbuild.include    | 80 ---------------------------------------
 scripts/Makefile.build    |  1 +
 scripts/Makefile.compiler | 75 ++++++++++++++++++++++++++++++++++++
 4 files changed, 80 insertions(+), 80 deletions(-)
 create mode 100644 scripts/Makefile.compiler

diff --git a/Makefile b/Makefile
index 71703c3963959..0ea01f9a22a92 100644
--- a/Makefile
+++ b/Makefile
@@ -597,6 +597,10 @@ KBUILD_AFLAGS	+= $(CLANG_FLAGS)
 export CLANG_FLAGS
 endif
 
+# Include this also for config targets because some architectures need
+# cc-cross-prefix to determine CROSS_COMPILE.
+include $(srctree)/scripts/Makefile.compiler
+
 ifdef config-build
 # ===========================================================================
 # *config targets only - make sure prerequisites are updated, and descend
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index f0b6dbd3c7fea..f247e691562d4 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -67,86 +67,6 @@ define filechk
 	fi
 endef
 
-######
-# gcc support functions
-# See documentation in Documentation/kbuild/makefiles.rst
-
-# cc-cross-prefix
-# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
-# Return first <prefix> where a <prefix>gcc is found in PATH.
-# If no gcc found in PATH with listed prefixes return nothing
-#
-# Note: '2>/dev/null' is here to force Make to invoke a shell. Otherwise, it
-# would try to directly execute the shell builtin 'command'. This workaround
-# should be kept for a long time since this issue was fixed only after the
-# GNU Make 4.2.1 release.
-cc-cross-prefix = $(firstword $(foreach c, $(1), \
-			$(if $(shell command -v -- $(c)gcc 2>/dev/null), $(c))))
-
-# output directory for tests below
-TMPOUT = $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_$$$$
-
-# try-run
-# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
-# Exit code chooses option. "$$TMP" serves as a temporary file and is
-# automatically cleaned up.
-try-run = $(shell set -e;		\
-	TMP=$(TMPOUT)/tmp;		\
-	TMPO=$(TMPOUT)/tmp.o;		\
-	mkdir -p $(TMPOUT);		\
-	trap "rm -rf $(TMPOUT)" EXIT;	\
-	if ($(1)) >/dev/null 2>&1;	\
-	then echo "$(2)";		\
-	else echo "$(3)";		\
-	fi)
-
-# as-option
-# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
-
-as-option = $(call try-run,\
-	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
-
-# as-instr
-# Usage: cflags-y += $(call as-instr,instr,option1,option2)
-
-as-instr = $(call try-run,\
-	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
-
-# __cc-option
-# Usage: MY_CFLAGS += $(call __cc-option,$(CC),$(MY_CFLAGS),-march=winchip-c6,-march=i586)
-__cc-option = $(call try-run,\
-	$(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
-
-# cc-option
-# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
-
-cc-option = $(call __cc-option, $(CC),\
-	$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS),$(1),$(2))
-
-# cc-option-yn
-# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
-cc-option-yn = $(call try-run,\
-	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
-
-# cc-disable-warning
-# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
-cc-disable-warning = $(call try-run,\
-	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
-
-# cc-ifversion
-# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
-cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || echo $(4))
-
-# ld-option
-# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
-ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
-
-# ld-ifversion
-# Usage:  $(call ld-ifversion, -ge, 22252, y)
-ld-ifversion = $(shell [ $(CONFIG_LD_VERSION)0 $(1) $(2)0 ] && echo $(3) || echo $(4))
-
-######
-
 ###
 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
 # Usage:
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 41974a7b71168..37c628fce5bdd 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -37,6 +37,7 @@ subdir-ccflags-y :=
 -include include/config/auto.conf
 
 include $(srctree)/scripts/Kbuild.include
+include $(srctree)/scripts/Makefile.compiler
 
 # The filename Kbuild has precedence over Makefile
 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
diff --git a/scripts/Makefile.compiler b/scripts/Makefile.compiler
new file mode 100644
index 0000000000000..3f2f3665216fb
--- /dev/null
+++ b/scripts/Makefile.compiler
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+# cc-cross-prefix
+# Usage: CROSS_COMPILE := $(call cc-cross-prefix, m68k-linux-gnu- m68k-linux-)
+# Return first <prefix> where a <prefix>gcc is found in PATH.
+# If no gcc found in PATH with listed prefixes return nothing
+#
+# Note: '2>/dev/null' is here to force Make to invoke a shell. Otherwise, it
+# would try to directly execute the shell builtin 'command'. This workaround
+# should be kept for a long time since this issue was fixed only after the
+# GNU Make 4.2.1 release.
+cc-cross-prefix = $(firstword $(foreach c, $(1), \
+			$(if $(shell command -v -- $(c)gcc 2>/dev/null), $(c))))
+
+# output directory for tests below
+TMPOUT = $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_$$$$
+
+# try-run
+# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
+# Exit code chooses option. "$$TMP" serves as a temporary file and is
+# automatically cleaned up.
+try-run = $(shell set -e;		\
+	TMP=$(TMPOUT)/tmp;		\
+	TMPO=$(TMPOUT)/tmp.o;		\
+	mkdir -p $(TMPOUT);		\
+	trap "rm -rf $(TMPOUT)" EXIT;	\
+	if ($(1)) >/dev/null 2>&1;	\
+	then echo "$(2)";		\
+	else echo "$(3)";		\
+	fi)
+
+# as-option
+# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
+
+as-option = $(call try-run,\
+	$(CC) $(KBUILD_CFLAGS) $(1) -c -x assembler /dev/null -o "$$TMP",$(1),$(2))
+
+# as-instr
+# Usage: cflags-y += $(call as-instr,instr,option1,option2)
+
+as-instr = $(call try-run,\
+	printf "%b\n" "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" -,$(2),$(3))
+
+# __cc-option
+# Usage: MY_CFLAGS += $(call __cc-option,$(CC),$(MY_CFLAGS),-march=winchip-c6,-march=i586)
+__cc-option = $(call try-run,\
+	$(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
+
+# cc-option
+# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
+
+cc-option = $(call __cc-option, $(CC),\
+	$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS),$(1),$(2))
+
+# cc-option-yn
+# Usage: flag := $(call cc-option-yn,-march=winchip-c6)
+cc-option-yn = $(call try-run,\
+	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n)
+
+# cc-disable-warning
+# Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable)
+cc-disable-warning = $(call try-run,\
+	$(CC) -Werror $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1)))
+
+# cc-ifversion
+# Usage:  EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
+cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || echo $(4))
+
+# ld-option
+# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
+ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
+
+# ld-ifversion
+# Usage:  $(call ld-ifversion, -ge, 22252, y)
+ld-ifversion = $(shell [ $(CONFIG_LD_VERSION)0 $(1) $(2)0 ] && echo $(3) || echo $(4))
-- 
GitLab


From 46d37c6b6d8c6b353738e991b28900b38493159a Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sun, 1 Aug 2021 11:53:46 +0900
Subject: [PATCH 2848/4878] UPSTREAM: kbuild: warn if a different compiler is
 used for external module builds

It is always safe to use the same compiler for the kernel and external
modules, but in reality, some distributions such as Fedora release a
different version of GCC from the one used for building the kernel.

There was a long discussion about mixing different compilers [1].

I do not repeat it here, but at least, showing a heads up in that
case is better than nothing.

Linus suggested [2]:
  And a warning might be more palatable even if different compiler
  version work fine together. Just a heads up on "it looks like you
  might be mixing compiler versions" is a valid note, and isn't
  necessarily wrong. Even when they work well together, maybe you want
  to have people at least _aware_ of it.

This commit shows a warning unless the compiler is exactly the same.

  warning: the compiler differs from the one used to build the kernel
    The kernel was built by: gcc (GCC) 11.1.1 20210531 (Red Hat 11.1.1-3)
    You are using:           gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-1)

Check the difference, and if it is OK with you, please proceed at your
risk.

To avoid the locale issue as in commit bcbcf50f5218 ("kbuild: fix
ld-version.sh to not be affected by locale"), pass LC_ALL=C to
"$(CC) --version".

[1] https://lore.kernel.org/linux-hardening/efe6b039a544da8215d5e54aa7c4b6d1986fc2b0.1611607264.git.jpoimboe@redhat.com/
[2] https://lore.kernel.org/lkml/CAHk-=wgjwhDy-y4mQh34L+2aF=n6BjzHdqAW2=8wri5x7O04pA@mail.gmail.com/

Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit 6072b2c49d23eb69b6dca06ad095d3a9633b2b80)
Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Ibbeeca6c7139f1d03621a8ba2137bafa32c14474
---
 Makefile | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 0ea01f9a22a92..e0f4d08fd8663 100644
--- a/Makefile
+++ b/Makefile
@@ -578,7 +578,7 @@ endif
 # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
 # CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
 # and from include/config/auto.conf.cmd to detect the compiler upgrade.
-CC_VERSION_TEXT = $(subst $(pound),,$(shell $(CC) --version 2>/dev/null | head -n 1))
+CC_VERSION_TEXT = $(subst $(pound),,$(shell LC_ALL=C $(CC) --version 2>/dev/null | head -n 1))
 
 ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
 ifneq ($(CROSS_COMPILE),)
@@ -1828,6 +1828,16 @@ clean-dirs := $(KBUILD_EXTMOD)
 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers $(KBUILD_EXTMOD)/modules.nsdeps \
 	$(KBUILD_EXTMOD)/compile_commands.json $(KBUILD_EXTMOD)/.thinlto-cache
 
+PHONY += prepare
+# now expand this into a simple variable to reduce the cost of shell evaluations
+prepare: CC_VERSION_TEXT := $(CC_VERSION_TEXT)
+prepare:
+	@if [ "$(CC_VERSION_TEXT)" != $(CONFIG_CC_VERSION_TEXT) ]; then \
+		echo >&2 "warning: the compiler differs from the one used to build the kernel"; \
+		echo >&2 "  The kernel was built by: "$(CONFIG_CC_VERSION_TEXT); \
+		echo >&2 "  You are using:           $(CC_VERSION_TEXT)"; \
+	fi
+
 PHONY += help
 help:
 	@echo  '  Building external modules.'
@@ -1841,7 +1851,7 @@ help:
 	@echo  ''
 
 # no-op for external module builds
-PHONY += prepare modules_prepare
+PHONY += modules_prepare
 
 endif # KBUILD_EXTMOD
 
-- 
GitLab


From 79bd0fef92b09eeaa2dab3999155ee15ec9f10a3 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Mon, 2 Aug 2021 11:39:08 -0700
Subject: [PATCH 2849/4878] BACKPORT: Makefile: move initial clang flag
 handling into scripts/Makefile.clang

With some of the changes we'd like to make to CROSS_COMPILE, the initial
block of clang flag handling which controls things like the target triple,
whether or not to use the integrated assembler and how to find GAS,
and erroring on unknown warnings is becoming unwieldy. Move it into its
own file under scripts/.

Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Bug: 209655537
[nd: conflict in MAINTAINERS]
(cherry picked from commit 6f5b41a2f5a6314614e286274eb8e985248aac60)
Change-Id: I350ba8aaf924f7b373d25ef67260e6373a405d12
---
 MAINTAINERS            |  2 ++
 Makefile               | 15 +--------------
 scripts/Makefile.clang | 14 ++++++++++++++
 3 files changed, 17 insertions(+), 14 deletions(-)
 create mode 100644 scripts/Makefile.clang

diff --git a/MAINTAINERS b/MAINTAINERS
index 1e22c46738159..ca7700bf40af1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4294,6 +4294,8 @@ W:	https://clangbuiltlinux.github.io/
 B:	https://github.com/ClangBuiltLinux/linux/issues
 C:	irc://chat.freenode.net/clangbuiltlinux
 F:	Documentation/kbuild/llvm.rst
+F:	include/linux/compiler-clang.h
+F:	scripts/Makefile.clang
 F:	scripts/clang-tools/
 K:	\b(?i:clang|llvm)\b
 
diff --git a/Makefile b/Makefile
index e0f4d08fd8663..d094be40f4589 100644
--- a/Makefile
+++ b/Makefile
@@ -581,20 +581,7 @@ endif
 CC_VERSION_TEXT = $(subst $(pound),,$(shell LC_ALL=C $(CC) --version 2>/dev/null | head -n 1))
 
 ifneq ($(findstring clang,$(CC_VERSION_TEXT)),)
-ifneq ($(CROSS_COMPILE),)
-CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
-endif
-ifeq ($(LLVM_IAS),1)
-CLANG_FLAGS	+= -integrated-as
-else
-CLANG_FLAGS	+= -no-integrated-as
-GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
-CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
-endif
-CLANG_FLAGS	+= -Werror=unknown-warning-option
-KBUILD_CFLAGS	+= $(CLANG_FLAGS)
-KBUILD_AFLAGS	+= $(CLANG_FLAGS)
-export CLANG_FLAGS
+include $(srctree)/scripts/Makefile.clang
 endif
 
 # Include this also for config targets because some architectures need
diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang
new file mode 100644
index 0000000000000..297932e973d41
--- /dev/null
+++ b/scripts/Makefile.clang
@@ -0,0 +1,14 @@
+ifneq ($(CROSS_COMPILE),)
+CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif
+ifeq ($(LLVM_IAS),1)
+CLANG_FLAGS	+= -integrated-as
+else
+CLANG_FLAGS	+= -no-integrated-as
+GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
+CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
+endif
+CLANG_FLAGS	+= -Werror=unknown-warning-option
+KBUILD_CFLAGS	+= $(CLANG_FLAGS)
+KBUILD_AFLAGS	+= $(CLANG_FLAGS)
+export CLANG_FLAGS
-- 
GitLab


From 377062e9833e131b9808a04f71be39161a1f04a6 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Mon, 2 Aug 2021 11:39:09 -0700
Subject: [PATCH 2850/4878] UPSTREAM: Makefile: infer --target from ARCH for
 CC=clang

We get constant feedback that the command line invocation of make is too
long when compiling with LLVM. CROSS_COMPILE is helpful when a toolchain
has a prefix of the target triple, or is an absolute path outside of
$PATH.

Since a Clang binary is generally multi-targeted, we can infer a given
target from SRCARCH/ARCH.  If CROSS_COMPILE is not set, simply set
--target= for CLANG_FLAGS, KBUILD_CFLAGS, and KBUILD_AFLAGS based on
$SRCARCH.

Previously, we'd cross compile via:
$ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make LLVM=1 LLVM_IAS=1
Now:
$ ARCH=arm64 make LLVM=1 LLVM_IAS=1

For native builds (not involving cross compilation) we now explicitly
specify a target triple rather than rely on the implicit host triple.

Link: https://github.com/ClangBuiltLinux/linux/issues/1399
Suggested-by: Arnd Bergmann <arnd@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Arnd Bergmann <arnd@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Bug: 209655537
(cherry picked from commit 231ad7f409f16b9f9505f69e058dff488a7e6bde)
Change-Id: I6f61a4937e6af22deda66eeaac6c667c889dc683
---
 scripts/Makefile.clang | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang
index 297932e973d41..1f4e3eb70f88c 100644
--- a/scripts/Makefile.clang
+++ b/scripts/Makefile.clang
@@ -1,6 +1,27 @@
-ifneq ($(CROSS_COMPILE),)
+# Individual arch/{arch}/Makefiles should use -EL/-EB to set intended
+# endianness and -m32/-m64 to set word size based on Kconfigs instead of
+# relying on the target triple.
+CLANG_TARGET_FLAGS_arm		:= arm-linux-gnueabi
+CLANG_TARGET_FLAGS_arm64	:= aarch64-linux-gnu
+CLANG_TARGET_FLAGS_hexagon	:= hexagon-linux-musl
+CLANG_TARGET_FLAGS_m68k		:= m68k-linux-gnu
+CLANG_TARGET_FLAGS_mips		:= mipsel-linux-gnu
+CLANG_TARGET_FLAGS_powerpc	:= powerpc64le-linux-gnu
+CLANG_TARGET_FLAGS_riscv	:= riscv64-linux-gnu
+CLANG_TARGET_FLAGS_s390		:= s390x-linux-gnu
+CLANG_TARGET_FLAGS_x86		:= x86_64-linux-gnu
+CLANG_TARGET_FLAGS		:= $(CLANG_TARGET_FLAGS_$(SRCARCH))
+
+ifeq ($(CROSS_COMPILE),)
+ifeq ($(CLANG_TARGET_FLAGS),)
+$(error Specify CROSS_COMPILE or add '--target=' option to scripts/Makefile.clang)
+else
+CLANG_FLAGS	+= --target=$(CLANG_TARGET_FLAGS)
+endif # CLANG_TARGET_FLAGS
+else
 CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
-endif
+endif # CROSS_COMPILE
+
 ifeq ($(LLVM_IAS),1)
 CLANG_FLAGS	+= -integrated-as
 else
-- 
GitLab


From ffff118fe157b534c3244f8b300e655231dbd95c Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Fri, 6 Aug 2021 10:27:01 -0700
Subject: [PATCH 2851/4878] BACKPORT: scripts/Makefile.clang: default to
 LLVM_IAS=1

LLVM_IAS=1 controls enabling clang's integrated assembler via
-integrated-as. This was an explicit opt in until we could enable
assembler support in Clang for more architecures. Now we have support
and CI coverage of LLVM_IAS=1 for all architecures except a few more
bugs affecting s390 and powerpc.

This commit flips the default from opt in via LLVM_IAS=1 to opt out via
LLVM_IAS=0.  CI systems or developers that were previously doing builds
with CC=clang or LLVM=1 without explicitly setting LLVM_IAS must now
explicitly opt out via LLVM_IAS=0, otherwise they will be implicitly
opted-in.

This finally shortens the command line invocation when cross compiling
with LLVM to simply:

$ make ARCH=arm64 LLVM=1

Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Bug: 209655537
[nd: conflict in Documentation/kbuild/llvm.rst]
(cherry picked from commit f12b034afeb3a977bbb1c6584dedc0f3dc666f14)
Change-Id: I026d42aa40c83eb149c8e39fe91a0b0164ff71b0
---
 Documentation/kbuild/llvm.rst | 67 +++++++++++++++++++++++++++++++++--
 scripts/Makefile.clang        |  6 ++--
 2 files changed, 68 insertions(+), 5 deletions(-)

diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst
index 21c847890d03c..578f7e1621a5c 100644
--- a/Documentation/kbuild/llvm.rst
+++ b/Documentation/kbuild/llvm.rst
@@ -60,8 +60,71 @@ They can be enabled individually. The full list of the parameters: ::
 	  OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump READELF=llvm-readelf \
 	  HOSTCC=clang HOSTCXX=clang++ HOSTAR=llvm-ar HOSTLD=ld.lld
 
-Currently, the integrated assembler is disabled by default. You can pass
-``LLVM_IAS=1`` to enable it.
+The integrated assembler is enabled by default. You can pass ``LLVM_IAS=0`` to
+disable it.
+
+Omitting CROSS_COMPILE
+----------------------
+
+As explained above, ``CROSS_COMPILE`` is used to set ``--target=<triple>``.
+
+If ``CROSS_COMPILE`` is not specified, the ``--target=<triple>`` is inferred
+from ``ARCH``.
+
+That means if you use only LLVM tools, ``CROSS_COMPILE`` becomes unnecessary.
+
+For example, to cross-compile the arm64 kernel::
+
+	make ARCH=arm64 LLVM=1
+
+If ``LLVM_IAS=0`` is specified, ``CROSS_COMPILE`` is also used to derive
+``--prefix=<path>`` to search for the GNU assembler and linker. ::
+
+	make ARCH=arm64 LLVM=1 LLVM_IAS=0 CROSS_COMPILE=aarch64-linux-gnu-
+
+Supported Architectures
+-----------------------
+
+LLVM does not target all of the architectures that Linux supports and
+just because a target is supported in LLVM does not mean that the kernel
+will build or work without any issues. Below is a general summary of
+architectures that currently work with ``CC=clang`` or ``LLVM=1``. Level
+of support corresponds to "S" values in the MAINTAINERS files. If an
+architecture is not present, it either means that LLVM does not target
+it or there are known issues. Using the latest stable version of LLVM or
+even the development tree will generally yield the best results.
+An architecture's ``defconfig`` is generally expected to work well,
+certain configurations may have problems that have not been uncovered
+yet. Bug reports are always welcome at the issue tracker below!
+
+.. list-table::
+   :widths: 10 10 10
+   :header-rows: 1
+
+   * - Architecture
+     - Level of support
+     - ``make`` command
+   * - arm
+     - Supported
+     - ``LLVM=1``
+   * - arm64
+     - Supported
+     - ``LLVM=1``
+   * - mips
+     - Maintained
+     - ``CC=clang``
+   * - powerpc
+     - Maintained
+     - ``CC=clang``
+   * - riscv
+     - Maintained
+     - ``CC=clang``
+   * - s390
+     - Maintained
+     - ``CC=clang``
+   * - x86
+     - Supported
+     - ``LLVM=1``
 
 Getting Help
 ------------
diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang
index 1f4e3eb70f88c..3ae63bd355824 100644
--- a/scripts/Makefile.clang
+++ b/scripts/Makefile.clang
@@ -22,12 +22,12 @@ else
 CLANG_FLAGS	+= --target=$(notdir $(CROSS_COMPILE:%-=%))
 endif # CROSS_COMPILE
 
-ifeq ($(LLVM_IAS),1)
-CLANG_FLAGS	+= -integrated-as
-else
+ifeq ($(LLVM_IAS),0)
 CLANG_FLAGS	+= -no-integrated-as
 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
 CLANG_FLAGS	+= --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
+else
+CLANG_FLAGS	+= -integrated-as
 endif
 CLANG_FLAGS	+= -Werror=unknown-warning-option
 KBUILD_CFLAGS	+= $(CLANG_FLAGS)
-- 
GitLab


From e48efff5cb5fd63a687465347bdbb52ef98dad44 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Thu, 13 Jan 2022 12:58:46 -0800
Subject: [PATCH 2852/4878] ANDROID: arch/Kconfig: fix up LTO LLVM_IAS depdency

Due to LTO being backported to android's 5.10 branches first, the
backport of ba64beb17493a4bfec563100c86a462a15926f24 dropped this. Now
that we have backports for checking AS_IS_LLVM, use that so that we
don't accidentally prevent LTO from being selectable.

Bug: 1938905
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I93fe13dba285bbb9fa1ae0e111bd2955c0b87c12
---
 arch/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 0ffd97454294d..9528d0bd544dd 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -642,8 +642,7 @@ config ARCH_SUPPORTS_LTO_CLANG_THIN
 config HAS_LTO_CLANG
 	def_bool y
 	# Clang >= 11: https://github.com/ClangBuiltLinux/linux/issues/510
-	depends on CC_IS_CLANG && CLANG_VERSION >= 110000 && LD_IS_LLD
-	depends on $(success,test $(LLVM_IAS) -eq 1)
+	depends on CC_IS_CLANG && CLANG_VERSION >= 110000 && LD_IS_LLD && AS_IS_LLVM
 	depends on $(success,$(NM) --help | head -n 1 | grep -qi llvm)
 	depends on $(success,$(AR) --help | head -n 1 | grep -qi llvm)
 	depends on ARCH_SUPPORTS_LTO_CLANG
-- 
GitLab


From 33078fb6fb824e0ab94515ef24c47419a331e106 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Mon, 3 Jan 2022 12:50:26 -0800
Subject: [PATCH 2853/4878] ANDROID: incremental-fs: fix GPF in
 pending_reads_dispatch_ioctl

It is possible that fget returns NULL. This needs to be handled
correctly in ioctl_permit_fill.

Bug: 212821226

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: Iec8be21982afeab6794b78ab1a542671c52acea2
---
 fs/incfs/pseudo_files.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/incfs/pseudo_files.c b/fs/incfs/pseudo_files.c
index 1a664f1478d5a..1b9bf000f5986 100644
--- a/fs/incfs/pseudo_files.c
+++ b/fs/incfs/pseudo_files.c
@@ -147,8 +147,12 @@ static long ioctl_permit_fill(struct file *f, void __user *arg)
 		return -EFAULT;
 
 	file = fget(permit_fill.file_descriptor);
-	if (IS_ERR(file))
+	if (IS_ERR_OR_NULL(file)) {
+		if (!file)
+			return -ENOENT;
+
 		return PTR_ERR(file);
+	}
 
 	if (file->f_op != &incfs_file_ops) {
 		error = -EPERM;
-- 
GitLab


From a185c0f11618fd0def1ef6b7338b9120a6d34c2b Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Thu, 13 Jan 2022 12:14:41 -0800
Subject: [PATCH 2854/4878] ANDROID: remove more stale variables from
 build.config files

CROSS_COMPILE is no longer necessary when building with LLVM=1 as of
upstream v5.15-rc1's
commit 231ad7f409f1 ("Makefile: infer --target from ARCH for CC=clang")
which was backported to android13-5.10.

LLVM_IAS=1 is implied by LLVM=1 as of LLVM_IAS as of
upstream v5.15-rc1's
commit f12b034afeb3 ("scripts/Makefile.clang: default to LLVM_IAS=1")
which was backported to android13-5.10.

Bug: 209655537
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Id426f680bba8d478ed300dd0f6551dc419ea345f
---
 build.config.aarch64 | 2 --
 build.config.arm     | 2 --
 build.config.x86_64  | 2 --
 3 files changed, 6 deletions(-)

diff --git a/build.config.aarch64 b/build.config.aarch64
index 7dd14d64968d7..2bf2c158fcdb7 100644
--- a/build.config.aarch64
+++ b/build.config.aarch64
@@ -1,6 +1,4 @@
 ARCH=arm64
-LLVM_IAS=1
-CROSS_COMPILE=aarch64-linux-gnu-
 MAKE_GOALS="
 Image
 modules
diff --git a/build.config.arm b/build.config.arm
index 0419cece38620..832c3c07173a6 100644
--- a/build.config.arm
+++ b/build.config.arm
@@ -1,6 +1,4 @@
 ARCH=arm
-LLVM_IAS=1
-CROSS_COMPILE=arm-linux-gnueabi-
 MAKE_GOALS="
 zImage
 modules
diff --git a/build.config.x86_64 b/build.config.x86_64
index c85360c6a3efe..db29dd3e371fb 100644
--- a/build.config.x86_64
+++ b/build.config.x86_64
@@ -1,6 +1,4 @@
 ARCH=x86_64
-LLVM_IAS=1
-CROSS_COMPILE=x86_64-linux-gnu-
 MAKE_GOALS="
 bzImage
 modules
-- 
GitLab


From 737c09e19577c96b23beb28c04a0abdfcf4701cc Mon Sep 17 00:00:00 2001
From: Giuseppe Scrivano <gscrivan@redhat.com>
Date: Wed, 18 Nov 2020 11:47:45 +0100
Subject: [PATCH 2855/4878] UPSTREAM: fs, close_range: add flag
 CLOSE_RANGE_CLOEXEC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When the flag CLOSE_RANGE_CLOEXEC is set, close_range doesn't
immediately close the files but it sets the close-on-exec bit.

It is useful for e.g. container runtimes that usually install a
seccomp profile "as late as possible" before execv'ing the container
process itself.  The container runtime could either do:
  1                                  2
- install_seccomp_profile();       - close_range(MIN_FD, MAX_INT, 0);
- close_range(MIN_FD, MAX_INT, 0); - install_seccomp_profile();
- execve(...);                     - execve(...);

Both alternative have some disadvantages.

In the first variant the seccomp_profile cannot block the close_range
syscall, as well as opendir/read/close/... for the fallback on older
kernels.
In the second variant, close_range() can be used only on the fds
that are not going to be needed by the runtime anymore, and it must be
potentially called multiple times to account for the different ranges
that must be closed.

Using close_range(..., ..., CLOSE_RANGE_CLOEXEC) solves these issues.
The runtime is able to use the existing open fds, the seccomp profile
can block close_range() and the syscalls used for its fallback.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Link: https://lore.kernel.org/r/20201118104746.873084-2-gscrivan@redhat.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
(cherry picked from commit 582f1fb6b721facf04848d2ca57f34468da1813e)
Bug: 216276716
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ib2d44f9760a80e3febdb25925d17ce5ffd14910e
---
 fs/file.c                        | 44 ++++++++++++++++++++++++--------
 include/uapi/linux/close_range.h |  3 +++
 2 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/fs/file.c b/fs/file.c
index 9d02352fa18c3..421daa4e4e4f8 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -672,6 +672,35 @@ int __close_fd(struct files_struct *files, unsigned fd)
 }
 EXPORT_SYMBOL(__close_fd); /* for ksys_close() */
 
+static inline void __range_cloexec(struct files_struct *cur_fds,
+				   unsigned int fd, unsigned int max_fd)
+{
+	struct fdtable *fdt;
+
+	if (fd > max_fd)
+		return;
+
+	spin_lock(&cur_fds->file_lock);
+	fdt = files_fdtable(cur_fds);
+	bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1);
+	spin_unlock(&cur_fds->file_lock);
+}
+
+static inline void __range_close(struct files_struct *cur_fds, unsigned int fd,
+				 unsigned int max_fd)
+{
+	while (fd <= max_fd) {
+		struct file *file;
+
+		file = pick_file(cur_fds, fd++);
+		if (!file)
+			continue;
+
+		filp_close(file, cur_fds);
+		cond_resched();
+	}
+}
+
 /**
  * __close_range() - Close all file descriptors in a given range.
  *
@@ -687,7 +716,7 @@ int __close_range(unsigned fd, unsigned max_fd, unsigned int flags)
 	struct task_struct *me = current;
 	struct files_struct *cur_fds = me->files, *fds = NULL;
 
-	if (flags & ~CLOSE_RANGE_UNSHARE)
+	if (flags & ~(CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC))
 		return -EINVAL;
 
 	if (fd > max_fd)
@@ -725,16 +754,11 @@ int __close_range(unsigned fd, unsigned max_fd, unsigned int flags)
 	}
 
 	max_fd = min(max_fd, cur_max);
-	while (fd <= max_fd) {
-		struct file *file;
 
-		file = pick_file(cur_fds, fd++);
-		if (!file)
-			continue;
-
-		filp_close(file, cur_fds);
-		cond_resched();
-	}
+	if (flags & CLOSE_RANGE_CLOEXEC)
+		__range_cloexec(cur_fds, fd, max_fd);
+	else
+		__range_close(cur_fds, fd, max_fd);
 
 	if (fds) {
 		/*
diff --git a/include/uapi/linux/close_range.h b/include/uapi/linux/close_range.h
index 6928a9fdee3c4..2d804281554c5 100644
--- a/include/uapi/linux/close_range.h
+++ b/include/uapi/linux/close_range.h
@@ -5,5 +5,8 @@
 /* Unshare the file descriptor table before closing file descriptors. */
 #define CLOSE_RANGE_UNSHARE	(1U << 1)
 
+/* Set the FD_CLOEXEC bit instead of closing the file descriptor. */
+#define CLOSE_RANGE_CLOEXEC	(1U << 2)
+
 #endif /* _UAPI_LINUX_CLOSE_RANGE_H */
 
-- 
GitLab


From 841ee1fff741ce102b13889949160d1d47f4cda4 Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Thu, 17 Dec 2020 22:33:03 +0100
Subject: [PATCH 2856/4878] UPSTREAM: close_range: unshare all fds for
 CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

After introducing CLOSE_RANGE_CLOEXEC syzbot reported a crash when
CLOSE_RANGE_CLOEXEC is specified in conjunction with CLOSE_RANGE_UNSHARE.
When CLOSE_RANGE_UNSHARE is specified the caller will receive a private
file descriptor table in case their file descriptor table is currently
shared.

For the case where the caller has requested all file descriptors to be
actually closed via e.g. close_range(3, ~0U, 0) the kernel knows that
the caller does not need any of the file descriptors anymore and will
optimize the close operation by only copying all files in the range from
0 to 3 and no others.

However, if the caller requested CLOSE_RANGE_CLOEXEC together with
CLOSE_RANGE_UNSHARE the caller wants to still make use of the file
descriptors so the kernel needs to copy all of them and can't optimize.

The original patch didn't account for this and thus could cause oopses
as evidenced by the syzbot report because it assumed that all fds had
been copied. Fix this by handling the CLOSE_RANGE_CLOEXEC case.

syzbot reported
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read include/linux/instrumented.h:71 [inline]
BUG: KASAN: null-ptr-deref in atomic64_read include/asm-generic/atomic-instrumented.h:837 [inline]
BUG: KASAN: null-ptr-deref in atomic_long_read include/asm-generic/atomic-long.h:29 [inline]
BUG: KASAN: null-ptr-deref in filp_close+0x22/0x170 fs/open.c:1274
Read of size 8 at addr 0000000000000077 by task syz-executor511/8522

CPU: 1 PID: 8522 Comm: syz-executor511 Not tainted 5.10.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 __kasan_report mm/kasan/report.c:549 [inline]
 kasan_report.cold+0x5/0x37 mm/kasan/report.c:562
 check_memory_region_inline mm/kasan/generic.c:186 [inline]
 check_memory_region+0x13d/0x180 mm/kasan/generic.c:192
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 atomic64_read include/asm-generic/atomic-instrumented.h:837 [inline]
 atomic_long_read include/asm-generic/atomic-long.h:29 [inline]
 filp_close+0x22/0x170 fs/open.c:1274
 close_files fs/file.c:402 [inline]
 put_files_struct fs/file.c:417 [inline]
 put_files_struct+0x1cc/0x350 fs/file.c:414
 exit_files+0x12a/0x170 fs/file.c:435
 do_exit+0xb4f/0x2a00 kernel/exit.c:818
 do_group_exit+0x125/0x310 kernel/exit.c:920
 get_signal+0x428/0x2100 kernel/signal.c:2792
 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
 handle_signal_work kernel/entry/common.c:147 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x124/0x200 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x447039
Code: Unable to access opcode bytes at RIP 0x44700f.
RSP: 002b:00007f1b1225cdb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00000000006dbc28 RCX: 0000000000447039
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dbc2c
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff223b6bef R14: 00007f1b1225d9c0 R15: 00000000006dbc2c
==================================================================

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+96cfd2b22b3213646a93@syzkaller.appspotmail.com

Tested on:

commit:         10f7cddd selftests/core: add regression test for CLOSE_RAN..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux.git vfs
kernel config:  https://syzkaller.appspot.com/x/.config?x=5d42216b510180e3
dashboard link: https://syzkaller.appspot.com/bug?extid=96cfd2b22b3213646a93
compiler:       gcc (GCC) 10.1.0-syz 20200507

Reported-by: syzbot+96cfd2b22b3213646a93@syzkaller.appspotmail.com
Fixes: 582f1fb6b721 ("fs, close_range: add flag CLOSE_RANGE_CLOEXEC")
Cc: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/20201217213303.722643-1-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
(cherry picked from commit fec8a6a691033f2538cd46848f17f337f0739923)
Bug: 216276716
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I0c6bbd8a46b93293c212fff08728514915d5c690
---
 fs/file.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/file.c b/fs/file.c
index 421daa4e4e4f8..7576fe214dd97 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -737,8 +737,10 @@ int __close_range(unsigned fd, unsigned max_fd, unsigned int flags)
 		 * If the requested range is greater than the current maximum,
 		 * we're closing everything so only copy all file descriptors
 		 * beneath the lowest file descriptor.
+		 * If the caller requested all fds to be made cloexec copy all
+		 * of the file descriptors since they still want to use them.
 		 */
-		if (max_fd >= cur_max)
+		if (!(flags & CLOSE_RANGE_CLOEXEC) && (max_fd >= cur_max))
 			max_unshare_fds = fd;
 
 		ret = unshare_fd(CLONE_FILES, max_unshare_fds, &fds);
-- 
GitLab


From 10339b6da670a1809559f44bf3fb53376b868b1e Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Fri, 2 Apr 2021 10:29:36 +0200
Subject: [PATCH 2857/4878] UPSTREAM: file: fix close_range() for
 unshare+cloexec
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

syzbot reported a bug when putting the last reference to a tasks file
descriptor table. Debugging this showed we didn't recalculate the
current maximum fd number for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC
after we unshared the file descriptors table. So max_fd could exceed the
current fdtable maximum causing us to set excessive bits. As a concrete
example, let's say the user requested everything from fd 4 to ~0UL to be
closed and their current fdtable size is 256 with their highest open fd
being 4. With CLOSE_RANGE_UNSHARE the caller will end up with a new
fdtable which has room for 64 file descriptors since that is the lowest
fdtable size we accept. But now max_fd will still point to 255 and needs
to be adjusted. Fix this by retrieving the correct maximum fd value in
__range_cloexec().

Reported-by: syzbot+283ce5a46486d6acdbaf@syzkaller.appspotmail.com
Fixes: 582f1fb6b721 ("fs, close_range: add flag CLOSE_RANGE_CLOEXEC")
Fixes: fec8a6a69103 ("close_range: unshare all fds for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC")
Cc: Christoph Hellwig <hch@lst.de>
Cc: Giuseppe Scrivano <gscrivan@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
(cherry picked from commit 9b5b872215fe6d1ca6a1ef411f130bd58e269012)
Bug: 216276716
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Id04f75bfeb49dcff0457136f74b47a2d05bd9d51
---
 fs/file.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/fs/file.c b/fs/file.c
index 7576fe214dd97..573eb1d84e426 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -672,17 +672,30 @@ int __close_fd(struct files_struct *files, unsigned fd)
 }
 EXPORT_SYMBOL(__close_fd); /* for ksys_close() */
 
+/**
+ * last_fd - return last valid index into fd table
+ * @cur_fds: files struct
+ *
+ * Context: Either rcu read lock or files_lock must be held.
+ *
+ * Returns: Last valid index into fdtable.
+ */
+static inline unsigned last_fd(struct fdtable *fdt)
+{
+	return fdt->max_fds - 1;
+}
+
 static inline void __range_cloexec(struct files_struct *cur_fds,
 				   unsigned int fd, unsigned int max_fd)
 {
 	struct fdtable *fdt;
 
-	if (fd > max_fd)
-		return;
-
+	/* make sure we're using the correct maximum value */
 	spin_lock(&cur_fds->file_lock);
 	fdt = files_fdtable(cur_fds);
-	bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1);
+	max_fd = min(last_fd(fdt), max_fd);
+	if (fd <= max_fd)
+		bitmap_set(fdt->close_on_exec, fd, max_fd - fd + 1);
 	spin_unlock(&cur_fds->file_lock);
 }
 
-- 
GitLab


From 4094a44201db7a3fd95d216e01ec85d748968110 Mon Sep 17 00:00:00 2001
From: Long Ling <longling@google.com>
Date: Tue, 25 Jan 2022 14:16:30 -0800
Subject: [PATCH 2858/4878] ANDROID: GKI: Update the ABI symbol list

Add drm_connector_set_panel_orientation

Bug: 214461751
Test: Build pass
Signed-off-by: Long Ling <longling@google.com>
Change-Id: Ic9f8dbe474053a13cb33d6924d2d06cf1d3f0674
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index bb2a7b421c149..8f699a78887d5 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -650,6 +650,7 @@
   drm_connector_list_iter_end
   drm_connector_list_iter_next
   drm_connector_register
+  drm_connector_set_panel_orientation
   drm_connector_unregister
   drm_crtc_arm_vblank_event
   drm_crtc_cleanup
-- 
GitLab


From 93717b608dd30f9d41b15a72e809238807c68026 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 12 Jan 2022 13:52:50 -0800
Subject: [PATCH 2859/4878] ANDROID: incremental-fs: fix mount_fs issue

Syzbot recently found a number of issues related to incremental-fs
(see bug numbers below). All have to do with the fact that incr-fs
allows mounts of the same source and target multiple times.
The correct behavior for a file system is to allow only one such
mount, and then every subsequent attempt should fail with a -EBUSY
error code. In case of the issues listed below the common pattern
is that the reproducer calls:

mount("./file0", "./file0", "incremental-fs", 0, NULL)

many times and then invokes a file operation like chmod, setxattr,
or open on the ./file0. This causes a recursive call for all the
mounted instances, which eventually causes a stack overflow and
a kernel crash:

BUG: stack guard page was hit at ffffc90000c0fff8
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN

The reason why many mounts with the same source and target are
possible is because the incfs_mount_fs() as it is allocates a new
super_block for every call, regardless of whether a given mount already
exists or not. This happens every time the sget() function is called
with a test param equal to NULL.
The correct behavior for an FS mount implementation is to call
appropriate mount vfs call for it's type, i.e. mount_bdev() for
a block device backed FS, mount_single() for a pseudo file system,
like sysfs that is mounted in a single, well know location, or
mount_nodev() for other special purpose FS like overlayfs.
In case of incremental-fs the open coded mount logic doesn't check
for abusive mount attempts such as overlays.
To fix this issue the logic needs to be changed to pass a proper
test function to sget() call, which then checks if a super_block
for a mount instance has already been allocated and also allows
the VFS to properly verify invalid mount attempts.

Bug: 211066171
Bug: 213140206
Bug: 213215835
Bug: 211914587
Bug: 211213635
Bug: 213137376
Bug: 211161296

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I66cfc3f1b5aaffb32b0845b2dad3ff26fe952e27
---
 fs/incfs/data_mgmt.c |  1 +
 fs/incfs/vfs.c       | 58 ++++++++++++++++++++++++++++++++------------
 fs/incfs/vfs.h       |  1 -
 3 files changed, 44 insertions(+), 16 deletions(-)

diff --git a/fs/incfs/data_mgmt.c b/fs/incfs/data_mgmt.c
index fbab68a280d5c..a383c5b5ad7f7 100644
--- a/fs/incfs/data_mgmt.c
+++ b/fs/incfs/data_mgmt.c
@@ -175,6 +175,7 @@ void incfs_free_mount_info(struct mount_info *mi)
 		kfree(mi->pseudo_file_xattr[i].data);
 	kfree(mi->mi_per_uid_read_timeouts);
 	incfs_free_sysfs_node(mi->mi_sysfs_node);
+	kfree(mi->mi_options.sysfs_name);
 	kfree(mi);
 }
 
diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
index ea7866fbfd6e1..35ac6e3daf8ec 100644
--- a/fs/incfs/vfs.c
+++ b/fs/incfs/vfs.c
@@ -393,7 +393,7 @@ static int iterate_incfs_dir(struct file *file, struct dir_context *ctx)
 	struct mount_info *mi = get_mount_info(file_superblock(file));
 	bool root;
 
-	if (!dir) {
+	if (!dir || !mi) {
 		error = -EBADF;
 		goto out;
 	}
@@ -1336,6 +1336,9 @@ static int dir_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct dentry *trap;
 	int error = 0;
 
+	if (!mi)
+		return -EBADF;
+
 	error = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
 	if (error)
 		return error;
@@ -1664,6 +1667,9 @@ static ssize_t incfs_getxattr(struct dentry *d, const char *name,
 	size_t stored_size;
 	int i;
 
+	if (!mi)
+		return -EBADF;
+
 	if (di && di->backing_path.dentry)
 		return vfs_getxattr(di->backing_path.dentry, name, value, size);
 
@@ -1698,6 +1704,9 @@ static ssize_t incfs_setxattr(struct dentry *d, const char *name,
 	size_t *stored_size;
 	int i;
 
+	if (!mi)
+		return -EBADF;
+
 	if (di && di->backing_path.dentry)
 		return vfs_setxattr(di->backing_path.dentry, name, value, size,
 				    flags);
@@ -1736,6 +1745,11 @@ static ssize_t incfs_listxattr(struct dentry *d, char *list, size_t size)
 	return vfs_listxattr(di->backing_path.dentry, list, size);
 }
 
+static int incfs_test_super(struct super_block *s, void *p)
+{
+	return s->s_fs_info != NULL;
+}
+
 struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 			      const char *dev_name, void *data)
 {
@@ -1746,7 +1760,8 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	struct dentry *incomplete_dir = NULL;
 	struct super_block *src_fs_sb = NULL;
 	struct inode *root_inode = NULL;
-	struct super_block *sb = sget(type, NULL, set_anon_super, flags, NULL);
+	struct super_block *sb = sget(type, incfs_test_super, set_anon_super,
+				      flags, NULL);
 	int error = 0;
 
 	if (IS_ERR(sb))
@@ -1787,13 +1802,18 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	src_fs_sb = backing_dir_path.dentry->d_sb;
 	sb->s_maxbytes = src_fs_sb->s_maxbytes;
 
-	mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
+	if (!sb->s_fs_info) {
+		mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
 
-	if (IS_ERR_OR_NULL(mi)) {
-		error = PTR_ERR(mi);
-		pr_err("incfs: Error allocating mount info. %d\n", error);
-		mi = NULL;
-		goto err;
+		if (IS_ERR_OR_NULL(mi)) {
+			error = PTR_ERR(mi);
+			pr_err("incfs: Error allocating mount info. %d\n", error);
+			mi = NULL;
+			goto err;
+		}
+		sb->s_fs_info = mi;
+	} else {
+		mi = sb->s_fs_info;
 	}
 
 	index_dir = open_or_create_special_dir(backing_dir_path.dentry,
@@ -1818,21 +1838,22 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	}
 	mi->mi_incomplete_dir = incomplete_dir;
 
-	sb->s_fs_info = mi;
 	root_inode = fetch_regular_inode(sb, backing_dir_path.dentry);
 	if (IS_ERR(root_inode)) {
 		error = PTR_ERR(root_inode);
 		goto err;
 	}
 
-	sb->s_root = d_make_root(root_inode);
 	if (!sb->s_root) {
-		error = -ENOMEM;
-		goto err;
+		sb->s_root = d_make_root(root_inode);
+		if (!sb->s_root) {
+			error = -ENOMEM;
+			goto err;
+		}
+		error = incfs_init_dentry(sb->s_root, &backing_dir_path);
+		if (error)
+			goto err;
 	}
-	error = incfs_init_dentry(sb->s_root, &backing_dir_path);
-	if (error)
-		goto err;
 
 	path_put(&backing_dir_path);
 	sb->s_flags |= SB_ACTIVE;
@@ -1854,6 +1875,9 @@ static int incfs_remount_fs(struct super_block *sb, int *flags, char *data)
 	struct mount_info *mi = get_mount_info(sb);
 	int err = 0;
 
+	if (!mi)
+		return err;
+
 	sync_filesystem(sb);
 	err = parse_options(&options, (char *)data);
 	if (err)
@@ -1883,12 +1907,16 @@ void incfs_kill_sb(struct super_block *sb)
 	pr_debug("incfs: unmount\n");
 	generic_shutdown_super(sb);
 	incfs_free_mount_info(mi);
+	sb->s_fs_info = NULL;
 }
 
 static int show_options(struct seq_file *m, struct dentry *root)
 {
 	struct mount_info *mi = get_mount_info(root->d_sb);
 
+	if (!mi)
+		return -EBADF;
+
 	seq_printf(m, ",read_timeout_ms=%u", mi->mi_options.read_timeout_ms);
 	seq_printf(m, ",readahead=%u", mi->mi_options.readahead_pages);
 	if (mi->mi_options.read_log_pages != 0) {
diff --git a/fs/incfs/vfs.h b/fs/incfs/vfs.h
index 79fdf243733d4..8876e63a8b0f9 100644
--- a/fs/incfs/vfs.h
+++ b/fs/incfs/vfs.h
@@ -19,7 +19,6 @@ static inline struct mount_info *get_mount_info(struct super_block *sb)
 {
 	struct mount_info *result = sb->s_fs_info;
 
-	WARN_ON(!result);
 	return result;
 }
 
-- 
GitLab


From 0ed1e67a81fbbc89bd5b8153fc4b78be599c69a7 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Thu, 13 Jan 2022 08:53:07 -0800
Subject: [PATCH 2860/4878] ANDROID: Incremental-fs: Doc: correct a sysfs path
 in incfs.rst

Correct a path to incremental-fs sysfs entry in incfs.rst

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: Id3a94888edd9022c517939b4667d9792fc04146a
---
 Documentation/filesystems/incfs.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/filesystems/incfs.rst b/Documentation/filesystems/incfs.rst
index 03ae39ec72dc9..19db303b83272 100644
--- a/Documentation/filesystems/incfs.rst
+++ b/Documentation/filesystems/incfs.rst
@@ -7,7 +7,7 @@ incfs: A stacked incremental filesystem for Linux
 /sys/fs interface
 =================
 
-Please update Documentation/ABI/testing/sys-fs-incfs if you update this
+Please update Documentation/ABI/testing/sysfs-fs-incfs if you update this
 section.
 
 incfs creates the following files in /sys/fs.
-- 
GitLab


From 49fe66b3ceb6e928113b62ee3df8aa5bf1335d00 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Tue, 18 Jan 2022 17:44:28 +0000
Subject: [PATCH 2861/4878] Revert "ANDROID: ABI: Update the generic symbol
 list"

This reverts commit 5c1e9f311f63108bb3f8331c4808f8dc3931711d.

Reason for revert: Binary sysfs files are for hardware-passthrough only.

Bug: 207662659
Cc: Quentin Perret <qperret@google.com>
Change-Id: If479dd134f64682f010fe5c7df2fc87c58a8ba40
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---
 android/abi_gki_aarch64_generic | 2 --
 1 file changed, 2 deletions(-)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 8f699a78887d5..6d47dd7f51624 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1984,7 +1984,6 @@
   sysctl_sched_latency
   sysfs_add_file_to_group
   sysfs_add_link_to_group
-  sysfs_create_bin_file
   sysfs_create_file_ns
   sysfs_create_files
   sysfs_create_group
@@ -1993,7 +1992,6 @@
   sysfs_emit
   sysfs_emit_at
   sysfs_notify
-  sysfs_remove_bin_file
   sysfs_remove_file_from_group
   sysfs_remove_file_ns
   sysfs_remove_group
-- 
GitLab


From b496f320dc04f7be3cd7fe8f4eb056e0daef42b9 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 12 Jan 2022 18:42:35 -0800
Subject: [PATCH 2862/4878] ANDROID: selftests: fix incfs_test

Fix incfs test build error:

incfs_test.c:4441:19: error: argument 2 is null but the corresponding
                      size argument 3 value is 1 [-Werror=nonnull]
 4441 |         TESTEQUAL(read(fd, NULL, 1), -1);
      |                   ^

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I028d02aef9938a9abe6c529756b89d7cb07507f2
---
 tools/testing/selftests/filesystems/incfs/incfs_test.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/filesystems/incfs/incfs_test.c b/tools/testing/selftests/filesystems/incfs/incfs_test.c
index 4c30aec3f5455..2d2bc933fefc5 100644
--- a/tools/testing/selftests/filesystems/incfs/incfs_test.c
+++ b/tools/testing/selftests/filesystems/incfs/incfs_test.c
@@ -4409,6 +4409,7 @@ static int sysfs_test(const char *mount_dir)
 	int fd = -1;
 	int pid = -1;
 	char buffer[32];
+	char *null_buf = NULL;
 	int status;
 	struct incfs_per_uid_read_timeouts purt_set[] = {
 		{
@@ -4437,13 +4438,13 @@ static int sysfs_test(const char *mount_dir)
 	TEST(fd = open(filename, O_RDONLY | O_CLOEXEC), fd != -1);
 	TESTEQUAL(ioctl_test_last_error(cmd_fd, NULL, 0, 0), 0);
 	TESTEQUAL(sysfs_test_value("reads_failed_timed_out", 0), 0);
-	TEST(read(fd, NULL, 1), -1);
+	TESTEQUAL(read(fd, null_buf, 1), -1);
 	TESTEQUAL(ioctl_test_last_error(cmd_fd, &file.id, 0, -ETIME), 0);
 	TESTEQUAL(sysfs_test_value("reads_failed_timed_out", 2), 0);
 
 	TESTEQUAL(emit_test_file_data(mount_dir, &file), 0);
 	TESTEQUAL(sysfs_test_value("reads_failed_hash_verification", 0), 0);
-	TESTEQUAL(read(fd, NULL, 1), -1);
+	TESTEQUAL(read(fd, null_buf, 1), -1);
 	TESTEQUAL(sysfs_test_value("reads_failed_hash_verification", 1), 0);
 	TESTSYSCALL(close(fd));
 	fd = -1;
-- 
GitLab


From e3ea5ed40751ea8bf853fb911861be9e73bced1c Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Fri, 20 Aug 2021 15:35:00 +0300
Subject: [PATCH 2863/4878] UPSTREAM: xhci: Fix failure to give back some
 cached cancelled URBs.

Only TDs with status TD_CLEARING_CACHE will be given back after
cache is cleared with a set TR deq command.

xhci_invalidate_cached_td() failed to set the TD_CLEARING_CACHE status
for some cancelled TDs as it assumed an endpoint only needs to clear the
TD it stopped on.

This isn't always true. For example with streams enabled an endpoint may
have several stream rings, each stopping on a different TDs.

Note that if an endpoint has several stream rings, the current code
will still only clear the cache of the stream pointed to by the last
cancelled TD in the cancel list.

This patch only focus on making sure all canceled TDs are given back,
avoiding hung task after device removal.
Another fix to solve clearing the caches of all stream rings with
cancelled TDs is needed, but not as urgent.

This issue was simultanously discovered and debugged by
by Tao Wang, with a slightly different fix proposal.

Fixes: 674f8438c121 ("xhci: split handling halted endpoints into two steps")
Cc: <stable@vger.kernel.org> #5.12
Reported-by: Tao Wang <wat@codeaurora.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210820123503.2605901-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 94f339147fc3eb9edef7ee4ef6e39c569c073753)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I6835eddfe9cd67505eaa920185bc10045a479b95
---
 drivers/usb/host/xhci-ring.c | 40 ++++++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index f04c1839c79ad..c85f36ed67d6a 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -980,17 +980,21 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep)
 					 td->urb->stream_id);
 		hw_deq &= ~0xf;
 
-		if (td->cancel_status == TD_HALTED) {
-			cached_td = td;
-		} else if (trb_in_td(xhci, td->start_seg, td->first_trb,
-			      td->last_trb, hw_deq, false)) {
+		if (td->cancel_status == TD_HALTED ||
+		    trb_in_td(xhci, td->start_seg, td->first_trb, td->last_trb, hw_deq, false)) {
 			switch (td->cancel_status) {
 			case TD_CLEARED: /* TD is already no-op */
 			case TD_CLEARING_CACHE: /* set TR deq command already queued */
 				break;
 			case TD_DIRTY: /* TD is cached, clear it */
 			case TD_HALTED:
-				/* FIXME  stream case, several stopped rings */
+				td->cancel_status = TD_CLEARING_CACHE;
+				if (cached_td)
+					/* FIXME  stream case, several stopped rings */
+					xhci_dbg(xhci,
+						 "Move dq past stream %u URB %p instead of stream %u URB %p\n",
+						 td->urb->stream_id, td->urb,
+						 cached_td->urb->stream_id, cached_td->urb);
 				cached_td = td;
 				break;
 			}
@@ -999,18 +1003,24 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep)
 			td->cancel_status = TD_CLEARED;
 		}
 	}
-	if (cached_td) {
-		cached_td->cancel_status = TD_CLEARING_CACHE;
 
-		err = xhci_move_dequeue_past_td(xhci, slot_id, ep->ep_index,
-						cached_td->urb->stream_id,
-						cached_td);
-		/* Failed to move past cached td, try just setting it noop */
-		if (err) {
-			td_to_noop(xhci, ring, cached_td, false);
-			cached_td->cancel_status = TD_CLEARED;
+	/* If there's no need to move the dequeue pointer then we're done */
+	if (!cached_td)
+		return 0;
+
+	err = xhci_move_dequeue_past_td(xhci, slot_id, ep->ep_index,
+					cached_td->urb->stream_id,
+					cached_td);
+	if (err) {
+		/* Failed to move past cached td, just set cached TDs to no-op */
+		list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, cancelled_td_list) {
+			if (td->cancel_status != TD_CLEARING_CACHE)
+				continue;
+			xhci_dbg(xhci, "Failed to clear cancelled cached URB %p, mark clear anyway\n",
+				 td->urb);
+			td_to_noop(xhci, ring, td, false);
+			td->cancel_status = TD_CLEARED;
 		}
-		cached_td = NULL;
 	}
 	return 0;
 }
-- 
GitLab


From 7950a1a6fe59d0131cd85c531afcb5e02108dd52 Mon Sep 17 00:00:00 2001
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Tue, 17 Aug 2021 16:36:25 +0800
Subject: [PATCH 2864/4878] UPSTREAM: usb: xhci-mtk: fix issue of out-of-bounds
 array access

Bus bandwidth array access is based on esit, increase one
will cause out-of-bounds issue; for example, when esit is
XHCI_MTK_MAX_ESIT, will overstep boundary.

Fixes: 7c986fbc16ae ("usb: xhci-mtk: get the microframe boundary for ESIT")
Cc: <stable@vger.kernel.org>
Reported-by: Stan Lu <stan.lu@mediatek.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1629189389-18779-5-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit de5107f473190538a65aac7edea85209cd5c1a8f)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Iaededaf59378afa4c511a6d547fd23a35be8989e
---
 drivers/usb/host/xhci-mtk-sch.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 8b90da5a6ed19..5e003baabac91 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -590,10 +590,12 @@ static u32 get_esit_boundary(struct mu3h_sch_ep_info *sch_ep)
 	u32 boundary = sch_ep->esit;
 
 	if (sch_ep->sch_tt) { /* LS/FS with TT */
-		/* tune for CS */
-		if (sch_ep->ep_type != ISOC_OUT_EP)
-			boundary++;
-		else if (boundary > 1) /* normally esit >= 8 for FS/LS */
+		/*
+		 * tune for CS, normally esit >= 8 for FS/LS,
+		 * not add one for other types to avoid access array
+		 * out of boundary
+		 */
+		if (sch_ep->ep_type == ISOC_OUT_EP && boundary > 1)
 			boundary--;
 	}
 
-- 
GitLab


From 63e1ba88549d0ee75a16cd99c60612786e133053 Mon Sep 17 00:00:00 2001
From: Li Li <dualli@google.com>
Date: Fri, 10 Sep 2021 09:42:10 -0700
Subject: [PATCH 2865/4878] UPSTREAM: binder: fix freeze race

Currently cgroup freezer is used to freeze the application threads, and
BINDER_FREEZE is used to freeze the corresponding binder interface.
There's already a mechanism in ioctl(BINDER_FREEZE) to wait for any
existing transactions to drain out before actually freezing the binder
interface.

But freezing an app requires 2 steps, freezing the binder interface with
ioctl(BINDER_FREEZE) and then freezing the application main threads with
cgroupfs. This is not an atomic operation. The following race issue
might happen.

1) Binder interface is frozen by ioctl(BINDER_FREEZE);
2) Main thread A initiates a new sync binder transaction to process B;
3) Main thread A is frozen by "echo 1 > cgroup.freeze";
4) The response from process B reaches the frozen thread, which will
unexpectedly fail.

This patch provides a mechanism to check if there's any new pending
transaction happening between ioctl(BINDER_FREEZE) and freezing the
main thread. If there's any, the main thread freezing operation can
be rolled back to finish the pending transaction.

Furthermore, the response might reach the binder driver before the
rollback actually happens. That will still cause failed transaction.

As the other process doesn't wait for another response of the response,
the response transaction failure can be fixed by treating the response
transaction like an oneway/async one, allowing it to reach the frozen
thread. And it will be consumed when the thread gets unfrozen later.

NOTE: This patch reuses the existing definition of struct
binder_frozen_status_info but expands the bit assignments of __u32
member sync_recv.

To ensure backward compatibility, bit 0 of sync_recv still indicates
there's an outstanding sync binder transaction. This patch adds new
information to bit 1 of sync_recv, indicating the binder transaction
happens exactly when there's a race.

If an existing userspace app runs on a new kernel, a sync binder call
will set bit 0 of sync_recv so ioctl(BINDER_GET_FROZEN_INFO) still
return the expected value (true). The app just doesn't check bit 1
intentionally so it doesn't have the ability to tell if there's a race.
This behavior is aligned with what happens on an old kernel which
doesn't set bit 1 at all.

A new userspace app can 1) check bit 0 to know if there's a sync binder
transaction happened when being frozen - same as before; and 2) check
bit 1 to know if that sync binder transaction happened exactly when
there's a race - a new information for rollback decision.

the same time, confirmed the pending transactions succeeded.

Fixes: 432ff1e91694 ("binder: BINDER_FREEZE ioctl")
Acked-by: Todd Kjos <tkjos@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Li Li <dualli@google.com>
Test: stress test with apps being frozen and initiating binder calls at
Link: https://lore.kernel.org/r/20210910164210.2282716-2-dualli@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit b564171ade70570b7f335fa8ed17adb28409e3ac)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I73c75967903797f252c64fa6b4b7207d0ea73791
---
 drivers/android/binder.c            | 35 ++++++++++++++++++++++++-----
 drivers/android/binder_internal.h   |  2 ++
 include/uapi/linux/android/binder.h |  7 ++++++
 3 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 0296fd087f2b2..34972e8c141ad 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -3195,9 +3195,8 @@ static void binder_transaction(struct binder_proc *proc,
 	if (reply) {
 		binder_enqueue_thread_work(thread, tcomplete);
 		binder_inner_proc_lock(target_proc);
-		if (target_thread->is_dead || target_proc->is_frozen) {
-			return_error = target_thread->is_dead ?
-				BR_DEAD_REPLY : BR_FROZEN_REPLY;
+		if (target_thread->is_dead) {
+			return_error = BR_DEAD_REPLY;
 			binder_inner_proc_unlock(target_proc);
 			goto err_dead_proc_or_thread;
 		}
@@ -4804,6 +4803,22 @@ static int binder_ioctl_get_node_debug_info(struct binder_proc *proc,
 	return 0;
 }
 
+static bool binder_txns_pending_ilocked(struct binder_proc *proc)
+{
+	struct rb_node *n;
+	struct binder_thread *thread;
+
+	if (proc->outstanding_txns > 0)
+		return true;
+
+	for (n = rb_first(&proc->threads); n; n = rb_next(n)) {
+		thread = rb_entry(n, struct binder_thread, rb_node);
+		if (thread->transaction_stack)
+			return true;
+	}
+	return false;
+}
+
 static int binder_ioctl_freeze(struct binder_freeze_info *info,
 			       struct binder_proc *target_proc)
 {
@@ -4835,8 +4850,13 @@ static int binder_ioctl_freeze(struct binder_freeze_info *info,
 			(!target_proc->outstanding_txns),
 			msecs_to_jiffies(info->timeout_ms));
 
-	if (!ret && target_proc->outstanding_txns)
-		ret = -EAGAIN;
+	/* Check pending transactions that wait for reply */
+	if (ret >= 0) {
+		binder_inner_proc_lock(target_proc);
+		if (binder_txns_pending_ilocked(target_proc))
+			ret = -EAGAIN;
+		binder_inner_proc_unlock(target_proc);
+	}
 
 	if (ret < 0) {
 		binder_inner_proc_lock(target_proc);
@@ -4852,6 +4872,7 @@ static int binder_ioctl_get_freezer_info(
 {
 	struct binder_proc *target_proc;
 	bool found = false;
+	__u32 txns_pending;
 
 	info->sync_recv = 0;
 	info->async_recv = 0;
@@ -4861,7 +4882,9 @@ static int binder_ioctl_get_freezer_info(
 		if (target_proc->pid == info->pid) {
 			found = true;
 			binder_inner_proc_lock(target_proc);
-			info->sync_recv |= target_proc->sync_recv;
+			txns_pending = binder_txns_pending_ilocked(target_proc);
+			info->sync_recv |= target_proc->sync_recv |
+					(txns_pending << 1);
 			info->async_recv |= target_proc->async_recv;
 			binder_inner_proc_unlock(target_proc);
 		}
diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h
index b73210c201e20..c2bb53e26d196 100644
--- a/drivers/android/binder_internal.h
+++ b/drivers/android/binder_internal.h
@@ -402,6 +402,8 @@ struct binder_priority {
  *                        binder transactions
  *                        (protected by @inner_lock)
  * @sync_recv:            process received sync transactions since last frozen
+ *                        bit 0: received sync transaction after being frozen
+ *                        bit 1: new pending sync transaction during freezing
  *                        (protected by @inner_lock)
  * @async_recv:           process received async transactions since last frozen
  *                        (protected by @inner_lock)
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index 74dcd8e92e50d..2d3f015e2ae38 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -273,7 +273,14 @@ struct binder_freeze_info {
 
 struct binder_frozen_status_info {
 	__u32            pid;
+
+	/* process received sync transactions since last frozen
+	 * bit 0: received sync transaction after being frozen
+	 * bit 1: new pending sync transaction during freezing
+	 */
 	__u32            sync_recv;
+
+	/* process received async transactions since last frozen */
 	__u32            async_recv;
 };
 
-- 
GitLab


From 9d7a259dba8dfbda0e6cf6d3ef7db9ecd4ee5151 Mon Sep 17 00:00:00 2001
From: Saravana Kannan <saravanak@google.com>
Date: Wed, 15 Sep 2021 10:09:37 -0700
Subject: [PATCH 2866/4878] UPSTREAM: driver core: fw_devlink: Improve handling
 of cyclic dependencies

When we have a dependency of the form:

Device-A -> Device-C
	Device-B

Device-C -> Device-B

Where,
* Indentation denotes "child of" parent in previous line.
* X -> Y denotes X is consumer of Y based on firmware (Eg: DT).

We have cyclic dependency: device-A -> device-C -> device-B -> device-A

fw_devlink current treats device-C -> device-B dependency as an invalid
dependency and doesn't enforce it but leaves the rest of the
dependencies as is.

While the current behavior is necessary, it is not sufficient if the
false dependency in this example is actually device-A -> device-C. When
this is the case, device-C will correctly probe defer waiting for
device-B to be added, but device-A will be incorrectly probe deferred by
fw_devlink waiting on device-C to probe successfully. Due to this, none
of the devices in the cycle will end up probing.

To fix this, we need to go relax all the dependencies in the cycle like
we already do in the other instances where fw_devlink detects cycles.
A real world example of this was reported[1] and analyzed[2].

[1] - https://lore.kernel.org/lkml/0a2c4106-7f48-2bb5-048e-8c001a7c3fda@samsung.com/
[2] - https://lore.kernel.org/lkml/CAGETcx8peaew90SWiux=TyvuGgvTQOmO4BFALz7aj0Za5QdNFQ@mail.gmail.com/

Fixes: f9aa460672c9 ("driver core: Refactor fw_devlink feature")
Cc: stable <stable@vger.kernel.org>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210915170940.617415-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 2de9d8e0d2fe3a1eb632def2245529067cb35db5)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ib3f301fa4638b79f73b82dcdae7f9058ff61989c
---
 drivers/base/core.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index f68608731bc4c..703efc3bd5681 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1692,14 +1692,21 @@ static int fw_devlink_create_devlink(struct device *con,
 	 * be broken by applying logic. Check for these types of cycles and
 	 * break them so that devices in the cycle probe properly.
 	 *
-	 * If the supplier's parent is dependent on the consumer, then
-	 * the consumer-supplier dependency is a false dependency. So,
-	 * treat it as an invalid link.
+	 * If the supplier's parent is dependent on the consumer, then the
+	 * consumer and supplier have a cyclic dependency. Since fw_devlink
+	 * can't tell which of the inferred dependencies are incorrect, don't
+	 * enforce probe ordering between any of the devices in this cyclic
+	 * dependency. Do this by relaxing all the fw_devlink device links in
+	 * this cycle and by treating the fwnode link between the consumer and
+	 * the supplier as an invalid dependency.
 	 */
 	sup_dev = fwnode_get_next_parent_dev(sup_handle);
 	if (sup_dev && device_is_dependent(con, sup_dev)) {
-		dev_dbg(con, "Not linking to %pfwP - False link\n",
-			sup_handle);
+		dev_info(con, "Fixing up cyclic dependency with %pfwP (%s)\n",
+			 sup_handle, dev_name(sup_dev));
+		device_links_write_lock();
+		fw_devlink_relax_cycle(con, sup_dev);
+		device_links_write_unlock();
 		ret = -EINVAL;
 	} else {
 		/*
-- 
GitLab


From f74899b38f8a9446391fdee748cd63f889580bd2 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Fri, 6 Aug 2021 00:01:02 +0900
Subject: [PATCH 2867/4878] UPSTREAM: kbuild: check CONFIG_AS_IS_LLVM instead
 of LLVM_IAS

LLVM_IAS is the user interface to set the -(no-)integrated-as flag,
and it should be used only for that purpose.

LLVM_IAS is checked in some places to determine the assembler type,
but it is not precise.

For example,

 $ make CC=gcc LLVM_IAS=1

... will use the GNU assembler (i.e. binutils) since LLVM_IAS=1 is
effective only when $(CC) is clang.

Of course, 'CC=gcc LLVM_IAS=1' is an odd combination, but the build
system can be more robust against such insane input.

Commit ba64beb17493a ("kbuild: check the minimum assembler version in
Kconfig") introduced CONFIG_AS_IS_GNU/LLVM, which is more precise
because Kconfig checks the version string from the assembler in use.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
(cherry picked from commit 52cc02b910284d6bddba46cce402044ab775f314)
Bug: 203823368
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Iac51937a957ef2c227dd97c68da7f129e2fc4684
---
 Makefile            | 2 +-
 arch/riscv/Makefile | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index d094be40f4589..02ae7d7d1d613 100644
--- a/Makefile
+++ b/Makefile
@@ -835,7 +835,7 @@ else
 DEBUG_CFLAGS	+= -g
 endif
 
-ifneq ($(LLVM_IAS),1)
+ifndef CONFIG_AS_IS_LLVM
 KBUILD_AFLAGS	+= -Wa,-gdwarf-2
 endif
 
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 226c366072da3..c14b530abcbe6 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -39,7 +39,7 @@ endif
 ifeq ($(CONFIG_LD_IS_LLD),y)
 	KBUILD_CFLAGS += -mno-relax
 	KBUILD_AFLAGS += -mno-relax
-ifneq ($(LLVM_IAS),1)
+ifndef CONFIG_AS_IS_LLVM
 	KBUILD_CFLAGS += -Wa,-mno-relax
 	KBUILD_AFLAGS += -Wa,-mno-relax
 endif
-- 
GitLab


From da8e6800702ed3a460b519cbf220d00b7bb3792b Mon Sep 17 00:00:00 2001
From: Stanislav Fomichev <sdf@google.com>
Date: Mon, 29 Mar 2021 15:31:43 -0700
Subject: [PATCH 2868/4878] UPSTREAM: tools/resolve_btfids: Fix warnings

* make eprintf static, used only in main.c
* initialize ret in eprintf
* remove unused *tmp

v3:
* remove another err (Song Liu)

v2:
* remove unused 'int err = -1'

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20210329223143.3659983-1-sdf@google.com
(cherry picked from commit e27bfefb21f28d5295432f042b5d9d7871100c35)
Bug: 203823368
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ie1e72f161805e9b9634e45e6a348bbc386dfd076
---
 tools/bpf/resolve_btfids/main.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/tools/bpf/resolve_btfids/main.c b/tools/bpf/resolve_btfids/main.c
index f32c059fbfb4f..b3c4c503b8013 100644
--- a/tools/bpf/resolve_btfids/main.c
+++ b/tools/bpf/resolve_btfids/main.c
@@ -115,10 +115,10 @@ struct object {
 
 static int verbose;
 
-int eprintf(int level, int var, const char *fmt, ...)
+static int eprintf(int level, int var, const char *fmt, ...)
 {
 	va_list args;
-	int ret;
+	int ret = 0;
 
 	if (var >= level) {
 		va_start(args, fmt);
@@ -383,7 +383,7 @@ static int elf_collect(struct object *obj)
 static int symbols_collect(struct object *obj)
 {
 	Elf_Scn *scn = NULL;
-	int n, i, err = 0;
+	int n, i;
 	GElf_Shdr sh;
 	char *name;
 
@@ -400,11 +400,10 @@ static int symbols_collect(struct object *obj)
 	 * Scan symbols and look for the ones starting with
 	 * __BTF_ID__* over .BTF_ids section.
 	 */
-	for (i = 0; !err && i < n; i++) {
-		char *tmp, *prefix;
+	for (i = 0; i < n; i++) {
+		char *prefix;
 		struct btf_id *id;
 		GElf_Sym sym;
-		int err = -1;
 
 		if (!gelf_getsym(obj->efile.symbols, i, &sym))
 			return -1;
-- 
GitLab


From d44db9ac8ad75dfe0c61b881d4fd787d60c7299a Mon Sep 17 00:00:00 2001
From: Wesley Cheng <quic_wcheng@quicinc.com>
Date: Thu, 20 Jan 2022 22:01:53 -0800
Subject: [PATCH 2869/4878] UPSTREAM: usb: gadget: f_serial: Ensure gserial
 disconnected during unbind

Some UDCs may return an error during pullup disable as part of the
unbind path for a USB configuration.  This will lead to a scenario
where the disable() callback is skipped, whereas the unbind() still
occurs.  If this happens, the u_serial driver will continue to fail
subsequent binds, due to an already existing entry in the ports array.
Ensure that gserial_disconnect() is called during the f_serial unbind,
so the ports entry is properly cleared.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220111064850.24311-1-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 215650635
(cherry picked from commit d6dd18efd01fc64bc3d1df0d18ad67f854e6e137)
Change-Id: I6d345345f5a86d73def1634d9860c598542e42a1
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 drivers/usb/gadget/function/f_serial.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/gadget/function/f_serial.c b/drivers/usb/gadget/function/f_serial.c
index 1ed8ff0ac2d31..a9480b9e312e3 100644
--- a/drivers/usb/gadget/function/f_serial.c
+++ b/drivers/usb/gadget/function/f_serial.c
@@ -345,6 +345,10 @@ static void gser_free(struct usb_function *f)
 
 static void gser_unbind(struct usb_configuration *c, struct usb_function *f)
 {
+	struct f_gser	*gser = func_to_gser(f);
+
+	/* Ensure port is disconnected before unbinding */
+	gserial_disconnect(&gser->port);
 	usb_free_all_descriptors(f);
 }
 
-- 
GitLab


From aa1346113c752783f585d1d08627cfa38aa14e47 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Tue, 18 Jan 2022 04:34:43 -0500
Subject: [PATCH 2870/4878] KVM: VMX: switch blocked_vcpu_on_cpu_lock to raw
 spinlock

commit 5f02ef741a785678930f3ff0a8b6b2b0ef1bb402 upstream.

blocked_vcpu_on_cpu_lock is taken from hard interrupt context
(pi_wakeup_handler), therefore it cannot sleep.

Switch it to a raw spinlock.

Fixes:

[41297.066254] BUG: scheduling while atomic: CPU 0/KVM/635218/0x00010001
[41297.066323] Preemption disabled at:
[41297.066324] [<ffffffff902ee47f>] irq_enter_rcu+0xf/0x60
[41297.066339] Call Trace:
[41297.066342]  <IRQ>
[41297.066346]  dump_stack_lvl+0x34/0x44
[41297.066353]  ? irq_enter_rcu+0xf/0x60
[41297.066356]  __schedule_bug.cold+0x7d/0x8b
[41297.066361]  __schedule+0x439/0x5b0
[41297.066365]  ? task_blocks_on_rt_mutex.constprop.0.isra.0+0x1b0/0x440
[41297.066369]  schedule_rtlock+0x1e/0x40
[41297.066371]  rtlock_slowlock_locked+0xf1/0x260
[41297.066374]  rt_spin_lock+0x3b/0x60
[41297.066378]  pi_wakeup_handler+0x31/0x90 [kvm_intel]
[41297.066388]  sysvec_kvm_posted_intr_wakeup_ipi+0x9d/0xd0
[41297.066392]  </IRQ>
[41297.066392]  asm_sysvec_kvm_posted_intr_wakeup_ipi+0x12/0x20
...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/posted_intr.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kvm/vmx/posted_intr.c b/arch/x86/kvm/vmx/posted_intr.c
index fbd9b10354790..5f8acd2faa7c1 100644
--- a/arch/x86/kvm/vmx/posted_intr.c
+++ b/arch/x86/kvm/vmx/posted_intr.c
@@ -15,7 +15,7 @@
  * can find which vCPU should be waken up.
  */
 static DEFINE_PER_CPU(struct list_head, blocked_vcpu_on_cpu);
-static DEFINE_PER_CPU(spinlock_t, blocked_vcpu_on_cpu_lock);
+static DEFINE_PER_CPU(raw_spinlock_t, blocked_vcpu_on_cpu_lock);
 
 static inline struct pi_desc *vcpu_to_pi_desc(struct kvm_vcpu *vcpu)
 {
@@ -121,9 +121,9 @@ static void __pi_post_block(struct kvm_vcpu *vcpu)
 			   new.control) != old.control);
 
 	if (!WARN_ON_ONCE(vcpu->pre_pcpu == -1)) {
-		spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		raw_spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
 		list_del(&vcpu->blocked_vcpu_list);
-		spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		raw_spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
 		vcpu->pre_pcpu = -1;
 	}
 }
@@ -154,11 +154,11 @@ int pi_pre_block(struct kvm_vcpu *vcpu)
 	local_irq_disable();
 	if (!WARN_ON_ONCE(vcpu->pre_pcpu != -1)) {
 		vcpu->pre_pcpu = vcpu->cpu;
-		spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		raw_spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
 		list_add_tail(&vcpu->blocked_vcpu_list,
 			      &per_cpu(blocked_vcpu_on_cpu,
 				       vcpu->pre_pcpu));
-		spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		raw_spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
 	}
 
 	do {
@@ -215,7 +215,7 @@ void pi_wakeup_handler(void)
 	struct kvm_vcpu *vcpu;
 	int cpu = smp_processor_id();
 
-	spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
+	raw_spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
 	list_for_each_entry(vcpu, &per_cpu(blocked_vcpu_on_cpu, cpu),
 			blocked_vcpu_list) {
 		struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
@@ -223,13 +223,13 @@ void pi_wakeup_handler(void)
 		if (pi_test_on(pi_desc) == 1)
 			kvm_vcpu_kick(vcpu);
 	}
-	spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
+	raw_spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
 }
 
 void __init pi_init_cpu(int cpu)
 {
 	INIT_LIST_HEAD(&per_cpu(blocked_vcpu_on_cpu, cpu));
-	spin_lock_init(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
+	raw_spin_lock_init(&per_cpu(blocked_vcpu_on_cpu_lock, cpu));
 }
 
 bool pi_has_pending_interrupt(struct kvm_vcpu *vcpu)
-- 
GitLab


From c2e39d5df028a3cbb61b2e1f6045c4f99a9cf70b Mon Sep 17 00:00:00 2001
From: Jann Horn <jannh@google.com>
Date: Fri, 14 Jan 2022 14:33:30 +0100
Subject: [PATCH 2871/4878] HID: uhid: Fix worker destroying device without any
 protection

commit 4ea5763fb79ed89b3bdad455ebf3f33416a81624 upstream.

uhid has to run hid_add_device() from workqueue context while allowing
parallel use of the userspace API (which is protected with ->devlock).
But hid_add_device() can fail. Currently, that is handled by immediately
destroying the associated HID device, without using ->devlock - but if
there are concurrent requests from userspace, that's wrong and leads to
NULL dereferences and/or memory corruption (via use-after-free).

Fix it by leaving the HID device as-is in the worker. We can clean it up
later, either in the UHID_DESTROY command handler or in the ->release()
handler.

Cc: stable@vger.kernel.org
Fixes: 67f8ecc550b5 ("HID: uhid: fix timeout when probe races with IO")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/uhid.c | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 8fe3efcb83271..fc06d8bb42e0f 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -28,11 +28,22 @@
 
 struct uhid_device {
 	struct mutex devlock;
+
+	/* This flag tracks whether the HID device is usable for commands from
+	 * userspace. The flag is already set before hid_add_device(), which
+	 * runs in workqueue context, to allow hid_add_device() to communicate
+	 * with userspace.
+	 * However, if hid_add_device() fails, the flag is cleared without
+	 * holding devlock.
+	 * We guarantee that if @running changes from true to false while you're
+	 * holding @devlock, it's still fine to access @hid.
+	 */
 	bool running;
 
 	__u8 *rd_data;
 	uint rd_size;
 
+	/* When this is NULL, userspace may use UHID_CREATE/UHID_CREATE2. */
 	struct hid_device *hid;
 	struct uhid_event input_buf;
 
@@ -63,9 +74,18 @@ static void uhid_device_add_worker(struct work_struct *work)
 	if (ret) {
 		hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret);
 
-		hid_destroy_device(uhid->hid);
-		uhid->hid = NULL;
+		/* We used to call hid_destroy_device() here, but that's really
+		 * messy to get right because we have to coordinate with
+		 * concurrent writes from userspace that might be in the middle
+		 * of using uhid->hid.
+		 * Just leave uhid->hid as-is for now, and clean it up when
+		 * userspace tries to close or reinitialize the uhid instance.
+		 *
+		 * However, we do have to clear the ->running flag and do a
+		 * wakeup to make sure userspace knows that the device is gone.
+		 */
 		uhid->running = false;
+		wake_up_interruptible(&uhid->report_wait);
 	}
 }
 
@@ -474,7 +494,7 @@ static int uhid_dev_create2(struct uhid_device *uhid,
 	void *rd_data;
 	int ret;
 
-	if (uhid->running)
+	if (uhid->hid)
 		return -EALREADY;
 
 	rd_size = ev->u.create2.rd_size;
@@ -556,7 +576,7 @@ static int uhid_dev_create(struct uhid_device *uhid,
 
 static int uhid_dev_destroy(struct uhid_device *uhid)
 {
-	if (!uhid->running)
+	if (!uhid->hid)
 		return -EINVAL;
 
 	uhid->running = false;
@@ -565,6 +585,7 @@ static int uhid_dev_destroy(struct uhid_device *uhid)
 	cancel_work_sync(&uhid->worker);
 
 	hid_destroy_device(uhid->hid);
+	uhid->hid = NULL;
 	kfree(uhid->rd_data);
 
 	return 0;
-- 
GitLab


From 9a4800e0f6a5ccdbe785ff4a377190e71de21126 Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Tue, 18 Jan 2022 14:37:55 -0800
Subject: [PATCH 2872/4878] HID: wacom: Reset expected and received contact
 counts at the same time

commit 546e41ac994cc185ef3de610ca849a294b5df3ba upstream.

These two values go hand-in-hand and must be valid for the driver to
behave correctly. We are currently lazy about updating the values and
rely on the "expected" code flow to take care of making sure they're
valid at the point they're needed. The "expected" flow changed somewhat
with commit f8b6a74719b5 ("HID: wacom: generic: Support multiple tools
per report"), however. This led to problems with the DTH-2452 due (in
part) to *all* contacts being fully processed -- even those past the
expected contact count. Specifically, the received count gets reset to
0 once all expected fingers are processed, but not the expected count.
The rest of the contacts in the report are then *also* processed since
now the driver thinks we've only processed 0 of N expected contacts.

Later commits such as 7fb0413baa7f (HID: wacom: Use "Confidence" flag to
prevent reporting invalid contacts) worked around the DTH-2452 issue by
skipping the invalid contacts at the end of the report, but this is not
a complete fix. The confidence flag cannot be relied on when a contact
is removed (see the following patch), and dealing with that condition
re-introduces the DTH-2452 issue unless we also address this contact
count laziness. By resetting expected and received counts at the same
time we ensure the driver understands that there are 0 more contacts
expected in the report. Similarly, we also make sure to reset the
received count if for some reason we're out of sync in the pre-report
phase.

Link: https://github.com/linuxwacom/input-wacom/issues/288
Fixes: f8b6a74719b5 ("HID: wacom: generic: Support multiple tools per report")
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/wacom_wac.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index c25274275258f..3159617287560 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2664,11 +2664,14 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
 	    hid_data->cc_index >= 0) {
 		struct hid_field *field = report->field[hid_data->cc_index];
 		int value = field->value[hid_data->cc_value_index];
-		if (value)
+		if (value) {
 			hid_data->num_expected = value;
+			hid_data->num_received = 0;
+		}
 	}
 	else {
 		hid_data->num_expected = wacom_wac->features.touch_max;
+		hid_data->num_received = 0;
 	}
 }
 
@@ -2692,6 +2695,7 @@ static void wacom_wac_finger_report(struct hid_device *hdev,
 
 	input_sync(input);
 	wacom_wac->hid_data.num_received = 0;
+	wacom_wac->hid_data.num_expected = 0;
 
 	/* keep touch state for pen event */
 	wacom_wac->shared->touch_down = wacom_wac_finger_count_touches(wacom_wac);
-- 
GitLab


From 7fd22c99bbed1889fd9f95adf26cddad5705e16e Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Tue, 18 Jan 2022 14:37:56 -0800
Subject: [PATCH 2873/4878] HID: wacom: Ignore the confidence flag when a touch
 is removed

commit df03e9bd6d4806619b4cdc91a3d7695818a8e2b7 upstream.

AES hardware may internally re-classify a contact that it thought was
intentional as a palm. Intentional contacts are reported as "down" with
the confidence bit set. When this re-classification occurs, however, the
state transitions to "up" with the confidence bit cleared. This kind of
transition appears to be legal according to Microsoft docs, but we do
not handle it correctly. Because the confidence bit is clear, we don't
call `wacom_wac_finger_slot` and update userspace. This causes hung
touches that confuse userspace and interfere with pen arbitration.

This commit adds a special case to ignore the confidence flag if a contact
is reported as removed. This ensures we do not leave a hung touch if one
of these re-classification events occured. Ideally we'd have some way to
also let userspace know that the touch has been re-classified as a palm
and needs to be canceled, but that's not possible right now :)

Link: https://github.com/linuxwacom/input-wacom/issues/288
Fixes: 7fb0413baa7f (HID: wacom: Use "Confidence" flag to prevent reporting invalid contacts)
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/wacom_wac.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 3159617287560..4f10b8317ba7c 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2566,6 +2566,24 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
 	}
 }
 
+static bool wacom_wac_slot_is_active(struct input_dev *dev, int key)
+{
+	struct input_mt *mt = dev->mt;
+	struct input_mt_slot *s;
+
+	if (!mt)
+		return false;
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+		if (s->key == key &&
+			input_mt_get_value(s, ABS_MT_TRACKING_ID) >= 0) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
 static void wacom_wac_finger_event(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage, __s32 value)
 {
@@ -2613,9 +2631,14 @@ static void wacom_wac_finger_event(struct hid_device *hdev,
 	}
 
 	if (usage->usage_index + 1 == field->report_count) {
-		if (equivalent_usage == wacom_wac->hid_data.last_slot_field &&
-		    wacom_wac->hid_data.confidence)
-			wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
+		if (equivalent_usage == wacom_wac->hid_data.last_slot_field) {
+			bool touch_removed = wacom_wac_slot_is_active(wacom_wac->touch_input,
+				wacom_wac->hid_data.id) && !wacom_wac->hid_data.tipswitch;
+
+			if (wacom_wac->hid_data.confidence || touch_removed) {
+				wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
+			}
+		}
 	}
 }
 
-- 
GitLab


From 57cfc965e3754868b0686d2700d9ea869dee48ea Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Tue, 18 Jan 2022 14:38:41 -0800
Subject: [PATCH 2874/4878] HID: wacom: Avoid using stale array indicies to
 read contact count

commit 20f3cf5f860f9f267a6a6e5642d3d0525edb1814 upstream.

If we ever see a touch report with contact count data we initialize
several variables used to read the contact count in the pre-report
phase. These variables are never reset if we process a report which
doesn't contain a contact count, however. This can cause the pre-
report function to trigger a read of arbitrary memory (e.g. NULL
if we're lucky) and potentially crash the driver.

This commit restores resetting of the variables back to default
"none" values that were used prior to the commit mentioned
below.

Link: https://github.com/linuxwacom/input-wacom/issues/276
Fixes: 003f50ab673c (HID: wacom: Update last_slot_field during pre_report phase)
CC: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/wacom_wac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 4f10b8317ba7c..d90bfa8b7313e 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2654,6 +2654,10 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
 
 	hid_data->confidence = true;
 
+	hid_data->cc_report = 0;
+	hid_data->cc_index = -1;
+	hid_data->cc_value_index = -1;
+
 	for (i = 0; i < report->maxfield; i++) {
 		struct hid_field *field = report->field[i];
 		int j;
-- 
GitLab


From 08283b076f4e889df3e46849bcdf3d388c2d6257 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Mon, 6 Dec 2021 22:44:21 +0800
Subject: [PATCH 2875/4878] f2fs: fix to do sanity check in is_alive()

commit 77900c45ee5cd5da63bd4d818a41dbdf367e81cd upstream.

In fuzzed image, SSA table may indicate that a data block belongs to
invalid node, which node ID is out-of-range (0, 1, 2 or max_nid), in
order to avoid migrating inconsistent data in such corrupted image,
let's do sanity check anyway before data block migration.

Cc: stable@vger.kernel.org
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/f2fs/gc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 72f227f6ebad0..6b240b71d2e83 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -998,6 +998,9 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 	}
 
+	if (f2fs_check_nid_range(sbi, dni->ino))
+		return false;
+
 	*nofs = ofs_of_node(node_page);
 	source_blkaddr = data_blkaddr(NULL, node_page, ofs_in_node);
 	f2fs_put_page(node_page, 1);
-- 
GitLab


From 777a700ccfa615075f564187c743577c8f009f7e Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Wed, 19 Jan 2022 08:48:16 +0100
Subject: [PATCH 2876/4878] nfc: llcp: fix NULL error pointer dereference on
 sendmsg() after failed bind()

commit dded08927ca3c31a5c37f8e7f95fe98770475dd4 upstream.

Syzbot detected a NULL pointer dereference of nfc_llcp_sock->dev pointer
(which is a 'struct nfc_dev *') with calls to llcp_sock_sendmsg() after
a failed llcp_sock_bind(). The message being sent is a SOCK_DGRAM.

KASAN report:

  BUG: KASAN: null-ptr-deref in nfc_alloc_send_skb+0x2d/0xc0
  Read of size 4 at addr 00000000000005c8 by task llcp_sock_nfc_a/899

  CPU: 5 PID: 899 Comm: llcp_sock_nfc_a Not tainted 5.16.0-rc6-next-20211224-00001-gc6437fbf18b0 #125
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
  Call Trace:
   <TASK>
   dump_stack_lvl+0x45/0x59
   ? nfc_alloc_send_skb+0x2d/0xc0
   __kasan_report.cold+0x117/0x11c
   ? mark_lock+0x480/0x4f0
   ? nfc_alloc_send_skb+0x2d/0xc0
   kasan_report+0x38/0x50
   nfc_alloc_send_skb+0x2d/0xc0
   nfc_llcp_send_ui_frame+0x18c/0x2a0
   ? nfc_llcp_send_i_frame+0x230/0x230
   ? __local_bh_enable_ip+0x86/0xe0
   ? llcp_sock_connect+0x470/0x470
   ? llcp_sock_connect+0x470/0x470
   sock_sendmsg+0x8e/0xa0
   ____sys_sendmsg+0x253/0x3f0
   ...

The issue was visible only with multiple simultaneous calls to bind() and
sendmsg(), which resulted in most of the bind() calls to fail.  The
bind() was failing on checking if there is available WKS/SDP/SAP
(respective bit in 'struct nfc_llcp_local' fields).  When there was no
available WKS/SDP/SAP, the bind returned error but the sendmsg() to such
socket was able to trigger mentioned NULL pointer dereference of
nfc_llcp_sock->dev.

The code looks simply racy and currently it protects several paths
against race with checks for (!nfc_llcp_sock->local) which is NULL-ified
in error paths of bind().  The llcp_sock_sendmsg() did not have such
check but called function nfc_llcp_send_ui_frame() had, although not
protected with lock_sock().

Therefore the race could look like (same socket is used all the time):
  CPU0                                     CPU1
  ====                                     ====
  llcp_sock_bind()
  - lock_sock()
    - success
  - release_sock()
  - return 0
                                           llcp_sock_sendmsg()
                                           - lock_sock()
                                           - release_sock()
  llcp_sock_bind(), same socket
  - lock_sock()
    - error
                                           - nfc_llcp_send_ui_frame()
                                             - if (!llcp_sock->local)
    - llcp_sock->local = NULL
    - nfc_put_device(dev)
                                             - dereference llcp_sock->dev
  - release_sock()
  - return -ERRNO

The nfc_llcp_send_ui_frame() checked llcp_sock->local outside of the
lock, which is racy and ineffective check.  Instead, its caller
llcp_sock_sendmsg(), should perform the check inside lock_sock().

Reported-and-tested-by: syzbot+7f23bcddf626e0593a39@syzkaller.appspotmail.com
Fixes: b874dec21d1c ("NFC: Implement LLCP connection less Tx path")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/nfc/llcp_sock.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 6cfd30fc07985..0b93a17b9f11f 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -789,6 +789,11 @@ static int llcp_sock_sendmsg(struct socket *sock, struct msghdr *msg,
 
 	lock_sock(sk);
 
+	if (!llcp_sock->local) {
+		release_sock(sk);
+		return -ENODEV;
+	}
+
 	if (sk->sk_type == SOCK_DGRAM) {
 		DECLARE_SOCKADDR(struct sockaddr_nfc_llcp *, addr,
 				 msg->msg_name);
-- 
GitLab


From 538a5e208e7d29e8b3cb1d79bbb757e8c763b680 Mon Sep 17 00:00:00 2001
From: Christian Eggers <ceggers@arri.de>
Date: Tue, 2 Nov 2021 21:20:22 +0100
Subject: [PATCH 2877/4878] mtd: rawnand: gpmi: Add ERR007117 protection for
 nfc_apply_timings

commit f53d4c109a666bf1a4883b45d546fba079258717 upstream.

gpmi_io clock needs to be gated off when changing the parent/dividers of
enfc_clk_root (i.MX6Q/i.MX6UL) respectively qspi2_clk_root (i.MX6SX).
Otherwise this rate change can lead to an unresponsive GPMI core which
results in DMA timeouts and failed driver probe:

[    4.072318] gpmi-nand 112000.gpmi-nand: DMA timeout, last DMA
...
[    4.370355] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -110
...
[    4.375988] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -22
[    4.381524] gpmi-nand 112000.gpmi-nand: Error in ECC-based read: -22
[    4.387988] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -22
[    4.393535] gpmi-nand 112000.gpmi-nand: Chip: 0, Error -22
...

Other than stated in i.MX 6 erratum ERR007117, it should be sufficient
to gate only gpmi_io because all other bch/nand clocks are derived from
different clock roots.

The i.MX6 reference manuals state that changing clock muxers can cause
glitches but are silent about changing dividers. But tests showed that
these glitches can definitely happen on i.MX6ULL. For i.MX7D/8MM in turn,
the manual guarantees that no glitches can happen when changing
dividers.

Co-developed-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Christian Eggers <ceggers@arri.de>
Cc: stable@vger.kernel.org
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102202022.15551-2-ceggers@arri.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 28 +++++++++++++++++++---
 1 file changed, 25 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index a6658567d55c0..187cb0ffabb04 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -711,14 +711,32 @@ static void gpmi_nfc_compute_timings(struct gpmi_nand_data *this,
 			      (use_half_period ? BM_GPMI_CTRL1_HALF_PERIOD : 0);
 }
 
-static void gpmi_nfc_apply_timings(struct gpmi_nand_data *this)
+static int gpmi_nfc_apply_timings(struct gpmi_nand_data *this)
 {
 	struct gpmi_nfc_hardware_timing *hw = &this->hw;
 	struct resources *r = &this->resources;
 	void __iomem *gpmi_regs = r->gpmi_regs;
 	unsigned int dll_wait_time_us;
+	int ret;
+
+	/* Clock dividers do NOT guarantee a clean clock signal on its output
+	 * during the change of the divide factor on i.MX6Q/UL/SX. On i.MX7/8,
+	 * all clock dividers provide these guarantee.
+	 */
+	if (GPMI_IS_MX6Q(this) || GPMI_IS_MX6SX(this))
+		clk_disable_unprepare(r->clock[0]);
+
+	ret = clk_set_rate(r->clock[0], hw->clk_rate);
+	if (ret) {
+		dev_err(this->dev, "cannot set clock rate to %lu Hz: %d\n", hw->clk_rate, ret);
+		return ret;
+	}
 
-	clk_set_rate(r->clock[0], hw->clk_rate);
+	if (GPMI_IS_MX6Q(this) || GPMI_IS_MX6SX(this)) {
+		ret = clk_prepare_enable(r->clock[0]);
+		if (ret)
+			return ret;
+	}
 
 	writel(hw->timing0, gpmi_regs + HW_GPMI_TIMING0);
 	writel(hw->timing1, gpmi_regs + HW_GPMI_TIMING1);
@@ -737,6 +755,8 @@ static void gpmi_nfc_apply_timings(struct gpmi_nand_data *this)
 
 	/* Wait for the DLL to settle. */
 	udelay(dll_wait_time_us);
+
+	return 0;
 }
 
 static int gpmi_setup_interface(struct nand_chip *chip, int chipnr,
@@ -2278,7 +2298,9 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
 	 */
 	if (this->hw.must_apply_timings) {
 		this->hw.must_apply_timings = false;
-		gpmi_nfc_apply_timings(this);
+		ret = gpmi_nfc_apply_timings(this);
+		if (ret)
+			return ret;
 	}
 
 	dev_dbg(this->dev, "%s: %d instructions\n", __func__, op->ninstrs);
-- 
GitLab


From ff10cd7bb295bfa9e497f83529479a04f356949f Mon Sep 17 00:00:00 2001
From: Stefan Riedmueller <s.riedmueller@phytec.de>
Date: Tue, 2 Nov 2021 21:20:21 +0100
Subject: [PATCH 2878/4878] mtd: rawnand: gpmi: Remove explicit default gpmi
 clock setting for i.MX6

commit aa1baa0e6c1aa4872e481dce4fc7fd6f3dd8496b upstream.

There is no need to explicitly set the default gpmi clock rate during
boot for the i.MX 6 since this is done during nand_detect anyway.

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Cc: stable@vger.kernel.org
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102202022.15551-1-ceggers@arri.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 187cb0ffabb04..226d527b6c6b7 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -1052,15 +1052,6 @@ static int gpmi_get_clks(struct gpmi_nand_data *this)
 		r->clock[i] = clk;
 	}
 
-	if (GPMI_IS_MX6(this))
-		/*
-		 * Set the default value for the gpmi clock.
-		 *
-		 * If you want to use the ONFI nand which is in the
-		 * Synchronous Mode, you should change the clock as you need.
-		 */
-		clk_set_rate(r->clock[0], 22000000);
-
 	return 0;
 
 err_clock:
-- 
GitLab


From a8a607b0049d8e5dc0c6b52e9c2b0490e0fc8716 Mon Sep 17 00:00:00 2001
From: Andreas Oetken <ennoerlangen@gmail.com>
Date: Tue, 2 Nov 2021 18:26:04 +0100
Subject: [PATCH 2879/4878] mtd: Fixed breaking list in __mtd_del_partition.

commit 2966daf7d253d9904b337b040dd7a43472858b8a upstream.

Not the child partition should be removed from the partition list
but the partition itself. Otherwise the partition list gets broken
and any subsequent remove operations leads to a kernel panic.

Fixes: 46b5889cc2c5 ("mtd: implement proper partition handling")
Signed-off-by: Andreas Oetken <andreas.oetken@siemens-energy.com>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211102172604.2921065-1-andreas.oetken@siemens-energy.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/mtdpart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 95d47422bbf20..5725818fa199f 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -313,7 +313,7 @@ static int __mtd_del_partition(struct mtd_info *mtd)
 	if (err)
 		return err;
 
-	list_del(&child->part.node);
+	list_del(&mtd->part.node);
 	free_partition(mtd);
 
 	return 0;
-- 
GitLab


From 677764634b42cf1d25ea3318480acadbd429ec73 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Sat, 16 Oct 2021 14:22:24 +0100
Subject: [PATCH 2880/4878] mtd: rawnand: davinci: Don't calculate ECC when
 reading page

commit 71e89591502d737c10db2bd4d8fcfaa352552afb upstream.

The function nand_davinci_read_page_hwecc_oob_first() does read the ECC
data from the OOB area. Therefore it does not need to calculate the ECC
as it is already available.

Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-1-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/davinci_nand.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index f8c36d19ab47f..6b4f98fadfd04 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -394,7 +394,6 @@ static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip,
 	int eccsteps = chip->ecc.steps;
 	uint8_t *p = buf;
 	uint8_t *ecc_code = chip->ecc.code_buf;
-	uint8_t *ecc_calc = chip->ecc.calc_buf;
 	unsigned int max_bitflips = 0;
 
 	/* Read the OOB area first */
@@ -420,8 +419,6 @@ static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip,
 		if (ret)
 			return ret;
 
-		chip->ecc.calculate(chip, p, &ecc_calc[i]);
-
 		stat = chip->ecc.correct(chip, p, &ecc_code[i], NULL);
 		if (stat == -EBADMSG &&
 		    (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) {
-- 
GitLab


From 8933138a6660388ccb915b4094dbd1caf2743345 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Sat, 16 Oct 2021 14:22:25 +0100
Subject: [PATCH 2881/4878] mtd: rawnand: davinci: Avoid duplicated page read

commit 9c9d709965385de5a99f84b14bd5860e1541729e upstream.

The function nand_davinci_read_page_hwecc_oob_first() first reads the
OOB data, extracts the ECC information, programs the ECC hardware before
reading the actual data in a loop.

Right after the OOB data was read, it called nand_read_page_op() to
reset the read cursor to the beginning of the page. This caused the
first page to be read twice: in that call, and later in the loop.

Address that issue by changing the call to nand_read_page_op() to
nand_change_read_column_op(), which will only reset the read cursor.

Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-2-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/davinci_nand.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index 6b4f98fadfd04..2fedfc46eff89 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -401,7 +401,8 @@ static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip,
 	if (ret)
 		return ret;
 
-	ret = nand_read_page_op(chip, page, 0, NULL, 0);
+	/* Move read cursor to start of page */
+	ret = nand_change_read_column_op(chip, 0, NULL, 0, false);
 	if (ret)
 		return ret;
 
-- 
GitLab


From e2a17dcad56e0252520eaa4eedb8572df9784c85 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Sat, 16 Oct 2021 14:22:26 +0100
Subject: [PATCH 2882/4878] mtd: rawnand: davinci: Rewrite function description

commit 0697f8441faad552fbeb02d74454b5e7bcc956a2 upstream.

The original comment that describes the function
nand_davinci_read_page_hwecc_oob_first() is very obscure and it is hard
to understand what it is for.

Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-3-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/davinci_nand.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index 2fedfc46eff89..bfd3f440aca57 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -372,17 +372,15 @@ correct:
 }
 
 /**
- * nand_read_page_hwecc_oob_first - hw ecc, read oob first
+ * nand_davinci_read_page_hwecc_oob_first - Hardware ECC page read with ECC
+ *                                          data read from OOB area
  * @chip: nand chip info structure
  * @buf: buffer to store read data
  * @oob_required: caller requires OOB data read to chip->oob_poi
  * @page: page number to read
  *
- * Hardware ECC for large page chips, require OOB to be read first. For this
- * ECC mode, the write_page method is re-used from ECC_HW. These methods
- * read/write ECC from the OOB area, unlike the ECC_HW_SYNDROME support with
- * multiple ECC steps, follows the "infix ECC" scheme and reads/writes ECC from
- * the data area, by overwriting the NAND manufacturer bad block markings.
+ * Hardware ECC for large page chips, which requires the ECC data to be
+ * extracted from the OOB before the actual data is read.
  */
 static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip,
 						  uint8_t *buf,
-- 
GitLab


From 98259dd54e8e0b22400bfe858569423ee4f031f3 Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Thu, 13 Jan 2022 16:28:39 -0800
Subject: [PATCH 2883/4878] x86/gpu: Reserve stolen memory for first integrated
 Intel GPU

commit 9c494ca4d3a535f9ca11ad6af1813983c1c6cbdd upstream.

"Stolen memory" is memory set aside for use by an Intel integrated GPU.
The intel_graphics_quirks() early quirk reserves this memory when it is
called for a GPU that appears in the intel_early_ids[] table of integrated
GPUs.

Previously intel_graphics_quirks() was marked as QFLAG_APPLY_ONCE, so it
was called only for the first Intel GPU found.  If a discrete GPU happened
to be enumerated first, intel_graphics_quirks() was called for it but not
for any integrated GPU found later.  Therefore, stolen memory for such an
integrated GPU was never reserved.

For example, this problem occurs in this Alderlake-P (integrated) + DG2
(discrete) topology where the DG2 is found first, but stolen memory is
associated with the integrated GPU:

  - 00:01.0 Bridge
    `- 03:00.0 DG2 discrete GPU
  - 00:02.0 Integrated GPU (with stolen memory)

Remove the QFLAG_APPLY_ONCE flag and call intel_graphics_quirks() for every
Intel GPU.  Reserve stolen memory for the first GPU that appears in
intel_early_ids[].

[bhelgaas: commit log, add code comment, squash in
https://lore.kernel.org/r/20220118190558.2ququ4vdfjuahicm@ldmartin-desk2]
Link: https://lore.kernel.org/r/20220114002843.2083382-1-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/early-quirks.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 0c6d1dc59fa21..8e27cbefaa4bf 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -515,6 +515,7 @@ static const struct intel_early_ops gen11_early_ops __initconst = {
 	.stolen_size = gen9_stolen_size,
 };
 
+/* Intel integrated GPUs for which we need to reserve "stolen memory" */
 static const struct pci_device_id intel_early_ids[] __initconst = {
 	INTEL_I830_IDS(&i830_early_ops),
 	INTEL_I845G_IDS(&i845_early_ops),
@@ -588,6 +589,13 @@ static void __init intel_graphics_quirks(int num, int slot, int func)
 	u16 device;
 	int i;
 
+	/*
+	 * Reserve "stolen memory" for an integrated GPU.  If we've already
+	 * found one, there's nothing to do for other (discrete) GPUs.
+	 */
+	if (resource_size(&intel_graphics_stolen_res))
+		return;
+
 	device = read_pci_config_16(num, slot, func, PCI_DEVICE_ID);
 
 	for (i = 0; i < ARRAY_SIZE(intel_early_ids); i++) {
@@ -700,7 +708,7 @@ static struct chipset early_qrk[] __initdata = {
 	{ PCI_VENDOR_ID_INTEL, 0x3406, PCI_CLASS_BRIDGE_HOST,
 	  PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA, PCI_ANY_ID,
-	  QFLAG_APPLY_ONCE, intel_graphics_quirks },
+	  0, intel_graphics_quirks },
 	/*
 	 * HPET on the current version of the Baytrail platform has accuracy
 	 * problems: it will halt in deep idle state - so we disable it.
-- 
GitLab


From 06f7528d641bf685dd9bc55e85afbf7c3843b8de Mon Sep 17 00:00:00 2001
From: Ammar Faizi <ammar.faizi@students.amikom.ac.id>
Date: Sun, 24 Oct 2021 19:28:14 +0200
Subject: [PATCH 2884/4878] tools/nolibc: x86-64: Fix startup code bug

commit 937ed91c712273131de6d2a02caafd3ee84e0c72 upstream.

Before this patch, the `_start` function looks like this:
```
0000000000001170 <_start>:
    1170:	pop    %rdi
    1171:	mov    %rsp,%rsi
    1174:	lea    0x8(%rsi,%rdi,8),%rdx
    1179:	and    $0xfffffffffffffff0,%rsp
    117d:	sub    $0x8,%rsp
    1181:	call   1000 <main>
    1186:	movzbq %al,%rdi
    118a:	mov    $0x3c,%rax
    1191:	syscall
    1193:	hlt
    1194:	data16 cs nopw 0x0(%rax,%rax,1)
    119f:	nop
```
Note the "and" to %rsp with $-16, it makes the %rsp be 16-byte aligned,
but then there is a "sub" with $0x8 which makes the %rsp no longer
16-byte aligned, then it calls main. That's the bug!

What actually the x86-64 System V ABI mandates is that right before the
"call", the %rsp must be 16-byte aligned, not after the "call". So the
"sub" with $0x8 here breaks the alignment. Remove it.

An example where this rule matters is when the callee needs to align
its stack at 16-byte for aligned move instruction, like `movdqa` and
`movaps`. If the callee can't align its stack properly, it will result
in segmentation fault.

x86-64 System V ABI also mandates the deepest stack frame should be
zero. Just to be safe, let's zero the %rbp on startup as the content
of %rbp may be unspecified when the program starts. Now it looks like
this:
```
0000000000001170 <_start>:
    1170:	pop    %rdi
    1171:	mov    %rsp,%rsi
    1174:	lea    0x8(%rsi,%rdi,8),%rdx
    1179:	xor    %ebp,%ebp                # zero the %rbp
    117b:	and    $0xfffffffffffffff0,%rsp # align the %rsp
    117f:	call   1000 <main>
    1184:	movzbq %al,%rdi
    1188:	mov    $0x3c,%rax
    118f:	syscall
    1191:	hlt
    1192:	data16 cs nopw 0x0(%rax,%rax,1)
    119d:	nopl   (%rax)
```

Cc: Bedirhan KURT <windowz414@gnuweeb.org>
Cc: Louvian Lyndal <louvianlyndal@gmail.com>
Reported-by: Peter Cordes <peter@cordes.ca>
Signed-off-by: Ammar Faizi <ammar.faizi@students.amikom.ac.id>
[wt: I did this on purpose due to a misunderstanding of the spec, other
     archs will thus have to be rechecked, particularly i386]
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/include/nolibc/nolibc.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 2551e9b71167b..bab456bb970a3 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -422,14 +422,20 @@ struct stat {
 })
 
 /* startup code */
+/*
+ * x86-64 System V ABI mandates:
+ * 1) %rsp must be 16-byte aligned right before the function call.
+ * 2) The deepest stack frame should be zero (the %rbp).
+ *
+ */
 asm(".section .text\n"
     ".global _start\n"
     "_start:\n"
     "pop %rdi\n"                // argc   (first arg, %rdi)
     "mov %rsp, %rsi\n"          // argv[] (second arg, %rsi)
     "lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx)
-    "and $-16, %rsp\n"          // x86 ABI : esp must be 16-byte aligned when
-    "sub $8, %rsp\n"            // entering the callee
+    "xor %ebp, %ebp\n"          // zero the stack frame
+    "and $-16, %rsp\n"          // x86 ABI : esp must be 16-byte aligned before call
     "call main\n"               // main() returns the status code, we'll exit with it.
     "movzb %al, %rdi\n"         // retrieve exit code from 8 lower bits
     "mov $60, %rax\n"           // NR_exit == 60
-- 
GitLab


From 5e258640ba549a3a2d053a917b353889beab09f4 Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Sun, 24 Oct 2021 19:28:15 +0200
Subject: [PATCH 2885/4878] tools/nolibc: i386: fix initial stack alignment

commit ebbe0d8a449d183fa43b42d84fcb248e25303985 upstream.

After re-checking in the spec and comparing stack offsets with glibc,
The last pushed argument must be 16-byte aligned (i.e. aligned before the
call) so that in the callee esp+4 is multiple of 16, so the principle is
the 32-bit equivalent to what Ammar fixed for x86_64. It's possible that
32-bit code using SSE2 or MMX could have been affected. In addition the
frame pointer ought to be zero at the deepest level.

Link: https://gitlab.com/x86-psABIs/i386-ABI/-/wikis/Intel386-psABI
Cc: Ammar Faizi <ammar.faizi@students.amikom.ac.id>
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/include/nolibc/nolibc.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index bab456bb970a3..ff8695c0f899a 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -606,13 +606,21 @@ struct sys_stat_struct {
 })
 
 /* startup code */
+/*
+ * i386 System V ABI mandates:
+ * 1) last pushed argument must be 16-byte aligned.
+ * 2) The deepest stack frame should be set to zero
+ *
+ */
 asm(".section .text\n"
     ".global _start\n"
     "_start:\n"
     "pop %eax\n"                // argc   (first arg, %eax)
     "mov %esp, %ebx\n"          // argv[] (second arg, %ebx)
     "lea 4(%ebx,%eax,4),%ecx\n" // then a NULL then envp (third arg, %ecx)
-    "and $-16, %esp\n"          // x86 ABI : esp must be 16-byte aligned when
+    "xor %ebp, %ebp\n"          // zero the stack frame
+    "and $-16, %esp\n"          // x86 ABI : esp must be 16-byte aligned before
+    "sub $4, %esp\n"            // the call instruction (args are aligned)
     "push %ecx\n"               // push all registers on the stack so that we
     "push %ebx\n"               // support both regparm and plain stack modes
     "push %eax\n"
-- 
GitLab


From 14f6cfe0d790cb3249f049f58761a9e787a5565c Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Sun, 24 Oct 2021 19:28:16 +0200
Subject: [PATCH 2886/4878] tools/nolibc: fix incorrect truncation of exit code

commit de0244ae40ae91145faaf164a4252347607c3711 upstream.

Ammar Faizi reported that our exit code handling is wrong. We truncate
it to the lowest 8 bits but the syscall itself is expected to take a
regular 32-bit signed integer, not an unsigned char. It's the kernel
that later truncates it to the lowest 8 bits. The difference is visible
in strace, where the program below used to show exit(255) instead of
exit(-1):

  int main(void)
  {
        return -1;
  }

This patch applies the fix to all archs. x86_64, i386, arm64, armv7 and
mips were all tested and confirmed to work fine now. Risc-v was not
tested but the change is trivial and exactly the same as for other archs.

Reported-by: Ammar Faizi <ammar.faizi@students.amikom.ac.id>
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/include/nolibc/nolibc.h | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index ff8695c0f899a..b8cecb66d28b7 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -437,7 +437,7 @@ asm(".section .text\n"
     "xor %ebp, %ebp\n"          // zero the stack frame
     "and $-16, %rsp\n"          // x86 ABI : esp must be 16-byte aligned before call
     "call main\n"               // main() returns the status code, we'll exit with it.
-    "movzb %al, %rdi\n"         // retrieve exit code from 8 lower bits
+    "mov %eax, %edi\n"          // retrieve exit code (32 bit)
     "mov $60, %rax\n"           // NR_exit == 60
     "syscall\n"                 // really exit
     "hlt\n"                     // ensure it does not return
@@ -625,9 +625,9 @@ asm(".section .text\n"
     "push %ebx\n"               // support both regparm and plain stack modes
     "push %eax\n"
     "call main\n"               // main() returns the status code in %eax
-    "movzbl %al, %ebx\n"        // retrieve exit code from lower 8 bits
-    "movl   $1, %eax\n"         // NR_exit == 1
-    "int    $0x80\n"            // exit now
+    "mov %eax, %ebx\n"          // retrieve exit code (32-bit int)
+    "movl $1, %eax\n"           // NR_exit == 1
+    "int $0x80\n"               // exit now
     "hlt\n"                     // ensure it does not
     "");
 
@@ -811,7 +811,6 @@ asm(".section .text\n"
     "and %r3, %r1, $-8\n"         // AAPCS : sp must be 8-byte aligned in the
     "mov %sp, %r3\n"              //         callee, an bl doesn't push (lr=pc)
     "bl main\n"                   // main() returns the status code, we'll exit with it.
-    "and %r0, %r0, $0xff\n"       // limit exit code to 8 bits
     "movs r7, $1\n"               // NR_exit == 1
     "svc $0x00\n"
     "");
@@ -1008,7 +1007,6 @@ asm(".section .text\n"
     "add x2, x2, x1\n"            //           + argv
     "and sp, x1, -16\n"           // sp must be 16-byte aligned in the callee
     "bl main\n"                   // main() returns the status code, we'll exit with it.
-    "and x0, x0, 0xff\n"          // limit exit code to 8 bits
     "mov x8, 93\n"                // NR_exit == 93
     "svc #0\n"
     "");
@@ -1213,7 +1211,7 @@ asm(".section .text\n"
     "addiu $sp,$sp,-16\n"         // the callee expects to save a0..a3 there!
     "jal main\n"                  // main() returns the status code, we'll exit with it.
     "nop\n"                       // delayed slot
-    "and $a0, $v0, 0xff\n"        // limit exit code to 8 bits
+    "move $a0, $v0\n"             // retrieve 32-bit exit code from v0
     "li $v0, 4001\n"              // NR_exit == 4001
     "syscall\n"
     ".end __start\n"
@@ -1411,7 +1409,6 @@ asm(".section .text\n"
     "add   a2,a2,a1\n"           //             + argv
     "andi  sp,a1,-16\n"          // sp must be 16-byte aligned
     "call  main\n"               // main() returns the status code, we'll exit with it.
-    "andi  a0, a0, 0xff\n"       // limit exit code to 8 bits
     "li a7, 93\n"                // NR_exit == 93
     "ecall\n"
     "");
-- 
GitLab


From 1da0b1cd4212acaeeed70a39a5a622a015bbab74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Jo=C5=84czyk?= <mat.jonczyk@o2.pl>
Date: Fri, 10 Dec 2021 21:01:23 +0100
Subject: [PATCH 2887/4878] rtc: cmos: take rtc_lock while reading from CMOS
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 454f47ff464325223129b9b5b8d0b61946ec704d upstream.

Reading from the CMOS involves writing to the index register and then
reading from the data register. Therefore access to the CMOS has to be
serialized with rtc_lock. This invocation of CMOS_READ was not
serialized, which could cause trouble when other code is accessing CMOS
at the same time.

Use spin_lock_irq() like the rest of the function.

Nothing in kernel modifies the RTC_DM_BINARY bit, so there could be a
separate pair of spin_lock_irq() / spin_unlock_irq() before doing the
math.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211210200131.153887-2-mat.jonczyk@o2.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rtc/rtc-cmos.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index c633319cdb913..58c6382a2807c 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -463,7 +463,10 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t)
 	min = t->time.tm_min;
 	sec = t->time.tm_sec;
 
+	spin_lock_irq(&rtc_lock);
 	rtc_control = CMOS_READ(RTC_CONTROL);
+	spin_unlock_irq(&rtc_lock);
+
 	if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
 		/* Writing 0xff means "don't care" or "match all".  */
 		mon = (mon <= 12) ? bin2bcd(mon) : 0xff;
-- 
GitLab


From 7cac8a56242779d8438f10723601e721c46cf41e Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Wed, 3 Nov 2021 12:28:31 +0000
Subject: [PATCH 2888/4878] media: v4l2-ioctl.c: readbuffers depends on
 V4L2_CAP_READWRITE

commit cd9d9377ed235b294a492a094e1666178a5e78fd upstream.

If V4L2_CAP_READWRITE is not set, then readbuffers must be set to 0,
otherwise v4l2-compliance will complain.

A note on the Fixes tag below: this patch does not really fix that commit,
but it can be applied from that commit onwards. For older code there is no
guarantee that device_caps is set, so even though this patch would apply,
it will not work reliably.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 049e684f2de9 (media: v4l2-dev: fix WARN_ON(!vdev->device_caps))
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/v4l2-core/v4l2-ioctl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 4ffa14e44efe4..6d6d30dbbe68b 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -2127,6 +2127,7 @@ static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
 static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
 				struct file *file, void *fh, void *arg)
 {
+	struct video_device *vfd = video_devdata(file);
 	struct v4l2_streamparm *p = arg;
 	v4l2_std_id std;
 	int ret = check_fmt(file, p->type);
@@ -2138,7 +2139,8 @@ static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
 	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 	    p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 		return -EINVAL;
-	p->parm.capture.readbuffers = 2;
+	if (vfd->device_caps & V4L2_CAP_READWRITE)
+		p->parm.capture.readbuffers = 2;
 	ret = ops->vidioc_g_std(file, fh, &std);
 	if (ret == 0)
 		v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
-- 
GitLab


From 460525acc953a6fa27bc9eb9524c0ce757e2938a Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:36 +0100
Subject: [PATCH 2889/4878] media: flexcop-usb: fix control-message timeouts

commit cd1798a387825cc4a51282f5a611ad05bb1ad75f upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Note that the driver was multiplying some of the timeout values with HZ
twice resulting in 3000-second timeouts with HZ=1000.

Also note that two of the timeout defines are currently unused.

Fixes: 2154be651b90 ("[media] redrat3: new rc-core IR transceiver device driver")
Cc: stable@vger.kernel.org      # 3.0
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/b2c2/flexcop-usb.c | 10 +++++-----
 drivers/media/usb/b2c2/flexcop-usb.h | 12 ++++++------
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
index e731243267e49..a2563c2540808 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -87,7 +87,7 @@ static int flexcop_usb_readwrite_dw(struct flexcop_device *fc, u16 wRegOffsPCI,
 			0,
 			fc_usb->data,
 			sizeof(u32),
-			B2C2_WAIT_FOR_OPERATION_RDW * HZ);
+			B2C2_WAIT_FOR_OPERATION_RDW);
 
 	if (ret != sizeof(u32)) {
 		err("error while %s dword from %d (%d).", read ? "reading" :
@@ -155,7 +155,7 @@ static int flexcop_usb_v8_memory_req(struct flexcop_usb *fc_usb,
 			wIndex,
 			fc_usb->data,
 			buflen,
-			nWaitTime * HZ);
+			nWaitTime);
 	if (ret != buflen)
 		ret = -EIO;
 
@@ -249,13 +249,13 @@ static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
 		/* DKT 020208 - add this to support special case of DiSEqC */
 	case USB_FUNC_I2C_CHECKWRITE:
 		pipe = B2C2_USB_CTRL_PIPE_OUT;
-		nWaitTime = 2;
+		nWaitTime = 2000;
 		request_type |= USB_DIR_OUT;
 		break;
 	case USB_FUNC_I2C_READ:
 	case USB_FUNC_I2C_REPEATREAD:
 		pipe = B2C2_USB_CTRL_PIPE_IN;
-		nWaitTime = 2;
+		nWaitTime = 2000;
 		request_type |= USB_DIR_IN;
 		break;
 	default:
@@ -282,7 +282,7 @@ static int flexcop_usb_i2c_req(struct flexcop_i2c_adapter *i2c,
 			wIndex,
 			fc_usb->data,
 			buflen,
-			nWaitTime * HZ);
+			nWaitTime);
 
 	if (ret != buflen)
 		ret = -EIO;
diff --git a/drivers/media/usb/b2c2/flexcop-usb.h b/drivers/media/usb/b2c2/flexcop-usb.h
index 2f230bf72252b..c7cca1a5ee59d 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.h
+++ b/drivers/media/usb/b2c2/flexcop-usb.h
@@ -91,13 +91,13 @@ typedef enum {
 	UTILITY_SRAM_TESTVERIFY     = 0x16,
 } flexcop_usb_utility_function_t;
 
-#define B2C2_WAIT_FOR_OPERATION_RW (1*HZ)
-#define B2C2_WAIT_FOR_OPERATION_RDW (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_WDW (1*HZ)
+#define B2C2_WAIT_FOR_OPERATION_RW 1000
+#define B2C2_WAIT_FOR_OPERATION_RDW 3000
+#define B2C2_WAIT_FOR_OPERATION_WDW 1000
 
-#define B2C2_WAIT_FOR_OPERATION_V8READ (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_V8WRITE (3*HZ)
-#define B2C2_WAIT_FOR_OPERATION_V8FLASH (3*HZ)
+#define B2C2_WAIT_FOR_OPERATION_V8READ 3000
+#define B2C2_WAIT_FOR_OPERATION_V8WRITE 3000
+#define B2C2_WAIT_FOR_OPERATION_V8FLASH 3000
 
 typedef enum {
 	V8_MEMORY_PAGE_DVB_CI = 0x20,
-- 
GitLab


From 2182575c83f94daa35b7b3fd52d8c71b6227843e Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:34 +0100
Subject: [PATCH 2890/4878] media: mceusb: fix control-message timeouts

commit 16394e998cbb050730536bdf7e89f5a70efbd974 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 66e89522aff7 ("V4L/DVB: IR: add mceusb IR receiver driver")
Cc: stable@vger.kernel.org      # 2.6.36
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/rc/mceusb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index 8870c4e6c5f44..dbb5a4f44bda5 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1430,7 +1430,7 @@ static void mceusb_gen1_init(struct mceusb_dev *ir)
 	 */
 	ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
 			      USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
-			      data, USB_CTRL_MSG_SZ, HZ * 3);
+			      data, USB_CTRL_MSG_SZ, 3000);
 	dev_dbg(dev, "set address - ret = %d", ret);
 	dev_dbg(dev, "set address - data[0] = %d, data[1] = %d",
 						data[0], data[1]);
@@ -1438,20 +1438,20 @@ static void mceusb_gen1_init(struct mceusb_dev *ir)
 	/* set feature: bit rate 38400 bps */
 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
 			      USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
-			      0xc04e, 0x0000, NULL, 0, HZ * 3);
+			      0xc04e, 0x0000, NULL, 0, 3000);
 
 	dev_dbg(dev, "set feature - ret = %d", ret);
 
 	/* bRequest 4: set char length to 8 bits */
 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
 			      4, USB_TYPE_VENDOR,
-			      0x0808, 0x0000, NULL, 0, HZ * 3);
+			      0x0808, 0x0000, NULL, 0, 3000);
 	dev_dbg(dev, "set char length - retB = %d", ret);
 
 	/* bRequest 2: set handshaking to use DTR/DSR */
 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
 			      2, USB_TYPE_VENDOR,
-			      0x0000, 0x0100, NULL, 0, HZ * 3);
+			      0x0000, 0x0100, NULL, 0, 3000);
 	dev_dbg(dev, "set handshake  - retC = %d", ret);
 
 	/* device resume */
-- 
GitLab


From d90833106c097ce4db5e036a66750a43d92983b4 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:38 +0100
Subject: [PATCH 2891/4878] media: em28xx: fix control-message timeouts

commit d9b7e8df3aa9b8c10708aab60e72e79ac08237e4 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: a6c2ba283565 ("[PATCH] v4l: 716: support for em28xx board family")
Cc: stable@vger.kernel.org      # 2.6.16
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/em28xx/em28xx-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-core.c b/drivers/media/usb/em28xx/em28xx-core.c
index af9216278024f..308bc029099d9 100644
--- a/drivers/media/usb/em28xx/em28xx-core.c
+++ b/drivers/media/usb/em28xx/em28xx-core.c
@@ -89,7 +89,7 @@ int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 	mutex_lock(&dev->ctrl_urb_lock);
 	ret = usb_control_msg(udev, pipe, req,
 			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			      0x0000, reg, dev->urb_buf, len, HZ);
+			      0x0000, reg, dev->urb_buf, len, 1000);
 	if (ret < 0) {
 		em28xx_regdbg("(pipe 0x%08x): IN:  %02x %02x %02x %02x %02x %02x %02x %02x  failed with error %i\n",
 			      pipe,
@@ -158,7 +158,7 @@ int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 	memcpy(dev->urb_buf, buf, len);
 	ret = usb_control_msg(udev, pipe, req,
 			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			      0x0000, reg, dev->urb_buf, len, HZ);
+			      0x0000, reg, dev->urb_buf, len, 1000);
 	mutex_unlock(&dev->ctrl_urb_lock);
 
 	if (ret < 0) {
-- 
GitLab


From 09b0b918a69b5c2a6cee72b6a76310572661e95b Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:37 +0100
Subject: [PATCH 2892/4878] media: cpia2: fix control-message timeouts

commit 10729be03327f53258cb196362015ad5c6eabe02 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: ab33d5071de7 ("V4L/DVB (3376): Add cpia2 camera support")
Cc: stable@vger.kernel.org      # 2.6.17
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/cpia2/cpia2_usb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c
index 76aac06f9fb8e..cba03b2864738 100644
--- a/drivers/media/usb/cpia2/cpia2_usb.c
+++ b/drivers/media/usb/cpia2/cpia2_usb.c
@@ -550,7 +550,7 @@ static int write_packet(struct usb_device *udev,
 			       0,	/* index */
 			       buf,	/* buffer */
 			       size,
-			       HZ);
+			       1000);
 
 	kfree(buf);
 	return ret;
@@ -582,7 +582,7 @@ static int read_packet(struct usb_device *udev,
 			       0,	/* index */
 			       buf,	/* buffer */
 			       size,
-			       HZ);
+			       1000);
 
 	if (ret >= 0)
 		memcpy(registers, buf, size);
-- 
GitLab


From 5e98ac260de6fc3e3d6aa3758142742233ca4524 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:40 +0100
Subject: [PATCH 2893/4878] media: s2255: fix control-message timeouts

commit f71d272ad4e354097020a4e6b1dc6e4b59feb50f upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Use the common control-message timeout define for the five-second
timeouts.

Fixes: 38f993ad8b1f ("V4L/DVB (8125): This driver adds support for the Sensoray 2255 devices.")
Cc: stable@vger.kernel.org      # 2.6.27
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/s2255/s2255drv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/s2255/s2255drv.c b/drivers/media/usb/s2255/s2255drv.c
index 4af55e2478be1..cb15eb32d2a6b 100644
--- a/drivers/media/usb/s2255/s2255drv.c
+++ b/drivers/media/usb/s2255/s2255drv.c
@@ -1884,7 +1884,7 @@ static long s2255_vendor_req(struct s2255_dev *dev, unsigned char Request,
 				    USB_TYPE_VENDOR | USB_RECIP_DEVICE |
 				    USB_DIR_IN,
 				    Value, Index, buf,
-				    TransferBufferLength, HZ * 5);
+				    TransferBufferLength, USB_CTRL_SET_TIMEOUT);
 
 		if (r >= 0)
 			memcpy(TransferBuffer, buf, TransferBufferLength);
@@ -1893,7 +1893,7 @@ static long s2255_vendor_req(struct s2255_dev *dev, unsigned char Request,
 		r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
 				    Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 				    Value, Index, buf,
-				    TransferBufferLength, HZ * 5);
+				    TransferBufferLength, USB_CTRL_SET_TIMEOUT);
 	}
 	kfree(buf);
 	return r;
-- 
GitLab


From 6e9c120bf9566e8212c4b8c2e4a89cbbc17a0541 Mon Sep 17 00:00:00 2001
From: Michael Kuron <michael.kuron@gmail.com>
Date: Sun, 26 Sep 2021 21:51:26 +0100
Subject: [PATCH 2894/4878] media: dib0700: fix undefined behavior in tuner
 shutdown

commit f7b77ebe6d2f49c7747b2d619586d1aa33f9ea91 upstream.

This fixes a problem where closing the tuner would leave it in a state
where it would not tune to any channel when reopened. This problem was
discovered as part of https://github.com/hselasky/webcamd/issues/16.

Since adap->id is 0 or 1, this bit-shift overflows, which is undefined
behavior. The driver still worked in practice as the overflow would in
most environments result in 0, which rendered the line a no-op. When
running the driver as part of webcamd however, the overflow could lead
to 0xff due to optimizations by the compiler, which would, in the end,
improperly shut down the tuner.

The bug is a regression introduced in the commit referenced below. The
present patch causes identical behavior to before that commit for
adap->id equal to 0 or 1. The driver does not contain support for
dib0700 devices with more adapters, assuming such even exist.

Tests have been performed with the Xbox One Digital TV Tuner on amd64.
Not all dib0700 devices are expected to be affected by the regression;
this code path is only taken by those with incorrect endpoint numbers.

Link: https://lore.kernel.org/linux-media/1d2fc36d94ced6f67c7cc21dcc469d5e5bdd8201.1632689033.git.mchehab+huawei@kernel.org

Cc: stable@vger.kernel.org
Fixes: 7757ddda6f4f ("[media] DiB0700: add function to change I2C-speed")
Signed-off-by: Michael Kuron <michael.kuron@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/dvb-usb/dib0700_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c
index 70219b3e85666..7ea8f68b0f458 100644
--- a/drivers/media/usb/dvb-usb/dib0700_core.c
+++ b/drivers/media/usb/dvb-usb/dib0700_core.c
@@ -618,8 +618,6 @@ int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 		deb_info("the endpoint number (%i) is not correct, use the adapter id instead", adap->fe_adap[0].stream.props.endpoint);
 		if (onoff)
 			st->channel_state |=	1 << (adap->id);
-		else
-			st->channel_state |=	1 << ~(adap->id);
 	} else {
 		if (onoff)
 			st->channel_state |=	1 << (adap->fe_adap[0].stream.props.endpoint-2);
-- 
GitLab


From 2dbf430ead59f6a05a890497c13a002b94acebc6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:35 +0100
Subject: [PATCH 2895/4878] media: redrat3: fix control-message timeouts

commit 2adc965c8bfa224e11ecccf9c92fd458c4236428 upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 2154be651b90 ("[media] redrat3: new rc-core IR transceiver device driver")
Cc: stable@vger.kernel.org      # 3.0
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/rc/redrat3.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/media/rc/redrat3.c b/drivers/media/rc/redrat3.c
index 2cf3377ec63a7..a61f9820ade95 100644
--- a/drivers/media/rc/redrat3.c
+++ b/drivers/media/rc/redrat3.c
@@ -404,7 +404,7 @@ static int redrat3_send_cmd(int cmd, struct redrat3_dev *rr3)
 	udev = rr3->udev;
 	res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd,
 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-			      0x0000, 0x0000, data, sizeof(u8), HZ * 10);
+			      0x0000, 0x0000, data, sizeof(u8), 10000);
 
 	if (res < 0) {
 		dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d",
@@ -480,7 +480,7 @@ static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
 	pipe = usb_rcvctrlpipe(rr3->udev, 0);
 	ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM,
 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-			      RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5);
+			      RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, 5000);
 	if (ret != len)
 		dev_warn(rr3->dev, "Failed to read timeout from hardware\n");
 	else {
@@ -510,7 +510,7 @@ static int redrat3_set_timeout(struct rc_dev *rc_dev, unsigned int timeoutus)
 	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), RR3_SET_IR_PARAM,
 		     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 		     RR3_IR_IO_SIG_TIMEOUT, 0, timeout, sizeof(*timeout),
-		     HZ * 25);
+		     25000);
 	dev_dbg(dev, "set ir parm timeout %d ret 0x%02x\n",
 						be32_to_cpu(*timeout), ret);
 
@@ -542,32 +542,32 @@ static void redrat3_reset(struct redrat3_dev *rr3)
 	*val = 0x01;
 	rc = usb_control_msg(udev, rxpipe, RR3_RESET,
 			     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-			     RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25);
+			     RR3_CPUCS_REG_ADDR, 0, val, len, 25000);
 	dev_dbg(dev, "reset returned 0x%02x\n", rc);
 
 	*val = length_fuzz;
 	rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
 			     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			     RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25);
+			     RR3_IR_IO_LENGTH_FUZZ, 0, val, len, 25000);
 	dev_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc);
 
 	*val = (65536 - (minimum_pause * 2000)) / 256;
 	rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
 			     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			     RR3_IR_IO_MIN_PAUSE, 0, val, len, HZ * 25);
+			     RR3_IR_IO_MIN_PAUSE, 0, val, len, 25000);
 	dev_dbg(dev, "set ir parm min pause %d rc 0x%02x\n", *val, rc);
 
 	*val = periods_measure_carrier;
 	rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
 			     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			     RR3_IR_IO_PERIODS_MF, 0, val, len, HZ * 25);
+			     RR3_IR_IO_PERIODS_MF, 0, val, len, 25000);
 	dev_dbg(dev, "set ir parm periods measure carrier %d rc 0x%02x", *val,
 									rc);
 
 	*val = RR3_DRIVER_MAXLENS;
 	rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
 			     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			     RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25);
+			     RR3_IR_IO_MAX_LENGTHS, 0, val, len, 25000);
 	dev_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc);
 
 	kfree(val);
@@ -585,7 +585,7 @@ static void redrat3_get_firmware_rev(struct redrat3_dev *rr3)
 	rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0),
 			     RR3_FW_VERSION,
 			     USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-			     0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5);
+			     0, 0, buffer, RR3_FW_VERSION_LEN, 5000);
 
 	if (rc >= 0)
 		dev_info(rr3->dev, "Firmware rev: %s", buffer);
@@ -825,14 +825,14 @@ static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
 
 	pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress);
 	ret = usb_bulk_msg(rr3->udev, pipe, irdata,
-			    sendbuf_len, &ret_len, 10 * HZ);
+			    sendbuf_len, &ret_len, 10000);
 	dev_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, ret);
 
 	/* now tell the hardware to transmit what we sent it */
 	pipe = usb_rcvctrlpipe(rr3->udev, 0);
 	ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL,
 			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-			      0, 0, irdata, 2, HZ * 10);
+			      0, 0, irdata, 2, 10000);
 
 	if (ret < 0)
 		dev_err(dev, "Error: control msg send failed, rc %d\n", ret);
-- 
GitLab


From 1a0ca711dff6029eea79664bf9d1762fe7c88b85 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:39 +0100
Subject: [PATCH 2896/4878] media: pvrusb2: fix control-message timeouts

commit b82bf9b9dc305d7d3d93eab106d70dbf2171b43e upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: d855497edbfb ("V4L/DVB (4228a): pvrusb2 to kernel 2.6.18")
Cc: stable@vger.kernel.org      # 2.6.18
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index d38dee1792e41..3915d551d59e7 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -1467,7 +1467,7 @@ static int pvr2_upload_firmware1(struct pvr2_hdw *hdw)
 	for (address = 0; address < fwsize; address += 0x800) {
 		memcpy(fw_ptr, fw_entry->data + address, 0x800);
 		ret += usb_control_msg(hdw->usb_dev, pipe, 0xa0, 0x40, address,
-				       0, fw_ptr, 0x800, HZ);
+				       0, fw_ptr, 0x800, 1000);
 	}
 
 	trace_firmware("Upload done, releasing device's CPU");
@@ -1605,7 +1605,7 @@ int pvr2_upload_firmware2(struct pvr2_hdw *hdw)
 			((u32 *)fw_ptr)[icnt] = swab32(((u32 *)fw_ptr)[icnt]);
 
 		ret |= usb_bulk_msg(hdw->usb_dev, pipe, fw_ptr,bcnt,
-				    &actual_length, HZ);
+				    &actual_length, 1000);
 		ret |= (actual_length != bcnt);
 		if (ret) break;
 		fw_done += bcnt;
@@ -3438,7 +3438,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
 						      0xa0,0xc0,
 						      address,0,
 						      hdw->fw_buffer+address,
-						      0x800,HZ);
+						      0x800,1000);
 				if (ret < 0) break;
 			}
 
@@ -3977,7 +3977,7 @@ void pvr2_hdw_cpureset_assert(struct pvr2_hdw *hdw,int val)
 	/* Write the CPUCS register on the 8051.  The lsb of the register
 	   is the reset bit; a 1 asserts reset while a 0 clears it. */
 	pipe = usb_sndctrlpipe(hdw->usb_dev, 0);
-	ret = usb_control_msg(hdw->usb_dev,pipe,0xa0,0x40,0xe600,0,da,1,HZ);
+	ret = usb_control_msg(hdw->usb_dev,pipe,0xa0,0x40,0xe600,0,da,1,1000);
 	if (ret < 0) {
 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
 			   "cpureset_assert(%d) error=%d",val,ret);
-- 
GitLab


From 2e566cacc321ce83baa0bbed45e5e651aea13527 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Mon, 25 Oct 2021 13:16:41 +0100
Subject: [PATCH 2897/4878] media: stk1160: fix control-message timeouts

commit 6aa6e70cdb5b863a57bad61310bf89b6617a5d2d upstream.

USB control-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Fixes: 9cb2173e6ea8 ("[media] media: Add stk1160 new driver (easycap replacement)")
Cc: stable@vger.kernel.org      # 3.7
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/stk1160/stk1160-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/stk1160/stk1160-core.c b/drivers/media/usb/stk1160/stk1160-core.c
index b4f8bc5db1389..4e1698f788187 100644
--- a/drivers/media/usb/stk1160/stk1160-core.c
+++ b/drivers/media/usb/stk1160/stk1160-core.c
@@ -65,7 +65,7 @@ int stk1160_read_reg(struct stk1160 *dev, u16 reg, u8 *value)
 		return -ENOMEM;
 	ret = usb_control_msg(dev->udev, pipe, 0x00,
 			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			0x00, reg, buf, sizeof(u8), HZ);
+			0x00, reg, buf, sizeof(u8), 1000);
 	if (ret < 0) {
 		stk1160_err("read failed on reg 0x%x (%d)\n",
 			reg, ret);
@@ -85,7 +85,7 @@ int stk1160_write_reg(struct stk1160 *dev, u16 reg, u16 value)
 
 	ret =  usb_control_msg(dev->udev, pipe, 0x01,
 			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			value, reg, NULL, 0, HZ);
+			value, reg, NULL, 0, 1000);
 	if (ret < 0) {
 		stk1160_err("write failed on reg 0x%x (%d)\n",
 			reg, ret);
-- 
GitLab


From aa57725e2d2a8e67dd6d5d2d7786d83910a1c8a6 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Wed, 1 Dec 2021 13:41:25 +0100
Subject: [PATCH 2898/4878] media: cec-pin: fix interrupt en/disable handling

commit 713bdfa10b5957053811470d298def9537d9ff13 upstream.

The en/disable_irq() functions keep track of the 'depth': i.e. if
interrupts are disabled twice, then it needs to enable_irq() calls to
enable them again. The cec-pin framework didn't take this into accound
and could disable irqs multiple times, and it expected that a single
enable_irq() would enable them again.

Move all calls to en/disable_irq() to the kthread where it is easy
to keep track of the current irq state and ensure that multiple
en/disable_irq calls never happen.

If interrupts where disabled twice, then they would never turn on
again, leaving the CEC adapter in a dead state.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 865463fc03ed (media: cec-pin: add error injection support)
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/cec/core/cec-pin.c | 31 ++++++++++++++++++-------------
 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/media/cec/core/cec-pin.c b/drivers/media/cec/core/cec-pin.c
index f006bd8eec63c..f8452a1f9fc6c 100644
--- a/drivers/media/cec/core/cec-pin.c
+++ b/drivers/media/cec/core/cec-pin.c
@@ -1033,6 +1033,7 @@ static int cec_pin_thread_func(void *_adap)
 {
 	struct cec_adapter *adap = _adap;
 	struct cec_pin *pin = adap->pin;
+	bool irq_enabled = false;
 
 	for (;;) {
 		wait_event_interruptible(pin->kthread_waitq,
@@ -1060,6 +1061,7 @@ static int cec_pin_thread_func(void *_adap)
 				ns_to_ktime(pin->work_rx_msg.rx_ts));
 			msg->len = 0;
 		}
+
 		if (pin->work_tx_status) {
 			unsigned int tx_status = pin->work_tx_status;
 
@@ -1083,27 +1085,39 @@ static int cec_pin_thread_func(void *_adap)
 		switch (atomic_xchg(&pin->work_irq_change,
 				    CEC_PIN_IRQ_UNCHANGED)) {
 		case CEC_PIN_IRQ_DISABLE:
-			pin->ops->disable_irq(adap);
+			if (irq_enabled) {
+				pin->ops->disable_irq(adap);
+				irq_enabled = false;
+			}
 			cec_pin_high(pin);
 			cec_pin_to_idle(pin);
 			hrtimer_start(&pin->timer, ns_to_ktime(0),
 				      HRTIMER_MODE_REL);
 			break;
 		case CEC_PIN_IRQ_ENABLE:
+			if (irq_enabled)
+				break;
 			pin->enable_irq_failed = !pin->ops->enable_irq(adap);
 			if (pin->enable_irq_failed) {
 				cec_pin_to_idle(pin);
 				hrtimer_start(&pin->timer, ns_to_ktime(0),
 					      HRTIMER_MODE_REL);
+			} else {
+				irq_enabled = true;
 			}
 			break;
 		default:
 			break;
 		}
-
 		if (kthread_should_stop())
 			break;
 	}
+	if (pin->ops->disable_irq && irq_enabled)
+		pin->ops->disable_irq(adap);
+	hrtimer_cancel(&pin->timer);
+	cec_pin_read(pin);
+	cec_pin_to_idle(pin);
+	pin->state = CEC_ST_OFF;
 	return 0;
 }
 
@@ -1130,13 +1144,7 @@ static int cec_pin_adap_enable(struct cec_adapter *adap, bool enable)
 		hrtimer_start(&pin->timer, ns_to_ktime(0),
 			      HRTIMER_MODE_REL);
 	} else {
-		if (pin->ops->disable_irq)
-			pin->ops->disable_irq(adap);
-		hrtimer_cancel(&pin->timer);
 		kthread_stop(pin->kthread);
-		cec_pin_read(pin);
-		cec_pin_to_idle(pin);
-		pin->state = CEC_ST_OFF;
 	}
 	return 0;
 }
@@ -1157,11 +1165,8 @@ void cec_pin_start_timer(struct cec_pin *pin)
 	if (pin->state != CEC_ST_RX_IRQ)
 		return;
 
-	atomic_set(&pin->work_irq_change, CEC_PIN_IRQ_UNCHANGED);
-	pin->ops->disable_irq(pin->adap);
-	cec_pin_high(pin);
-	cec_pin_to_idle(pin);
-	hrtimer_start(&pin->timer, ns_to_ktime(0), HRTIMER_MODE_REL);
+	atomic_set(&pin->work_irq_change, CEC_PIN_IRQ_DISABLE);
+	wake_up_interruptible(&pin->kthread_waitq);
 }
 
 static int cec_pin_adap_transmit(struct cec_adapter *adap, u8 attempts,
-- 
GitLab


From 256302cb2f860c07ca7aead179fbd102631848b7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Wed, 22 Dec 2021 11:48:43 +0100
Subject: [PATCH 2899/4878] can: softing_cs: softingcs_probe(): fix memleak on
 registration failure

commit ced4913efb0acc844ed65cc01d091a85d83a2082 upstream.

In case device registration fails during probe, the driver state and
the embedded platform device structure needs to be freed using
platform_device_put() to properly free all resources (e.g. the device
name).

Fixes: 0a0b7a5f7a04 ("can: add driver for Softing card")
Link: https://lore.kernel.org/all/20211222104843.6105-1-johan@kernel.org
Cc: stable@vger.kernel.org # 2.6.38
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/softing/softing_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/softing/softing_cs.c b/drivers/net/can/softing/softing_cs.c
index 2e93ee7923739..e5c939b63fa65 100644
--- a/drivers/net/can/softing/softing_cs.c
+++ b/drivers/net/can/softing/softing_cs.c
@@ -293,7 +293,7 @@ static int softingcs_probe(struct pcmcia_device *pcmcia)
 	return 0;
 
 platform_failed:
-	kfree(dev);
+	platform_device_put(pdev);
 mem_failed:
 pcmcia_bad:
 pcmcia_failed:
-- 
GitLab


From e4a2c924a17ebbafcd8421c3920410ebc3b15095 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Sun, 5 Dec 2021 17:27:28 +0000
Subject: [PATCH 2900/4878] iio: adc: ti-adc081c: Partial revert of removal of
 ACPI IDs

commit c9791a94384af07592d29504004d2255dbaf8663 upstream.

Unfortuanately a non standards compliant ACPI ID is known to be
in the wild on some AAEON boards.

Partly revert the removal of these IDs so that ADC081C will again
work + add a comment to that affect for future reference.

Whilst here use generic firmware properties rather than the ACPI
specific handling previously found in this driver.

Reported-by: Kunyang Fan <Kunyang_Fan@aaeon.com.tw>
Fixes: c458b7ca3fd0 ("iio:adc:ti-adc081c: Drop ACPI ids that seem very unlikely to be official.")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Kunyang Fan <Kunyang_Fan@aaeon.com.tw> #UP-extremei11
Link: https://lore.kernel.org/r/20211205172728.2826512-1-jic23@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ti-adc081c.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index b64718daa2017..c79cd88cd4231 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -19,6 +19,7 @@
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
+#include <linux/property.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
@@ -151,13 +152,16 @@ static int adc081c_probe(struct i2c_client *client,
 {
 	struct iio_dev *iio;
 	struct adc081c *adc;
-	struct adcxx1c_model *model;
+	const struct adcxx1c_model *model;
 	int err;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
 		return -EOPNOTSUPP;
 
-	model = &adcxx1c_models[id->driver_data];
+	if (dev_fwnode(&client->dev))
+		model = device_get_match_data(&client->dev);
+	else
+		model = &adcxx1c_models[id->driver_data];
 
 	iio = devm_iio_device_alloc(&client->dev, sizeof(*adc));
 	if (!iio)
@@ -224,10 +228,17 @@ static const struct i2c_device_id adc081c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, adc081c_id);
 
+static const struct acpi_device_id adc081c_acpi_match[] = {
+	/* Used on some AAEON boards */
+	{ "ADC081C", (kernel_ulong_t)&adcxx1c_models[ADC081C] },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, adc081c_acpi_match);
+
 static const struct of_device_id adc081c_of_match[] = {
-	{ .compatible = "ti,adc081c" },
-	{ .compatible = "ti,adc101c" },
-	{ .compatible = "ti,adc121c" },
+	{ .compatible = "ti,adc081c", .data = &adcxx1c_models[ADC081C] },
+	{ .compatible = "ti,adc101c", .data = &adcxx1c_models[ADC101C] },
+	{ .compatible = "ti,adc121c", .data = &adcxx1c_models[ADC121C] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, adc081c_of_match);
@@ -236,6 +247,7 @@ static struct i2c_driver adc081c_driver = {
 	.driver = {
 		.name = "adc081c",
 		.of_match_table = adc081c_of_match,
+		.acpi_match_table = adc081c_acpi_match,
 	},
 	.probe = adc081c_probe,
 	.remove = adc081c_remove,
-- 
GitLab


From 3dae11f8e381d3a3461a3accce1120edbe43f5fd Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Fri, 8 Oct 2021 18:58:40 +0200
Subject: [PATCH 2901/4878] lkdtm: Fix content of section containing
 lkdtm_rodata_do_nothing()

commit bc93a22a19eb2b68a16ecf04cdf4b2ed65aaf398 upstream.

On a kernel without CONFIG_STRICT_KERNEL_RWX, running EXEC_RODATA
test leads to "Illegal instruction" failure.

Looking at the content of rodata_objcopy.o, we see that the
function content zeroes only:

	Disassembly of section .rodata:

	0000000000000000 <.lkdtm_rodata_do_nothing>:
	   0:	00 00 00 00 	.long 0x0

Add the contents flag in order to keep the content of the section
while renaming it.

	Disassembly of section .rodata:

	0000000000000000 <.lkdtm_rodata_do_nothing>:
	   0:	4e 80 00 20 	blr

Fixes: e9e08a07385e ("lkdtm: support llvm-objcopy")
Cc: stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/8900731fbc05fb8b0de18af7133a8fc07c3c53a1.1633712176.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/lkdtm/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/lkdtm/Makefile b/drivers/misc/lkdtm/Makefile
index 30c8ac24635d4..4405fb2bc7a00 100644
--- a/drivers/misc/lkdtm/Makefile
+++ b/drivers/misc/lkdtm/Makefile
@@ -16,7 +16,7 @@ KCOV_INSTRUMENT_rodata.o	:= n
 
 OBJCOPYFLAGS :=
 OBJCOPYFLAGS_rodata_objcopy.o	:= \
-			--rename-section .noinstr.text=.rodata,alloc,readonly,load
+			--rename-section .noinstr.text=.rodata,alloc,readonly,load,contents
 targets += rodata.o rodata_objcopy.o
 $(obj)/rodata_objcopy.o: $(obj)/rodata.o FORCE
 	$(call if_changed,objcopy)
-- 
GitLab


From 0680674536904bfb4e4e64905a18ab300b9372f3 Mon Sep 17 00:00:00 2001
From: Yunfei Wang <yf.wang@mediatek.com>
Date: Tue, 7 Dec 2021 19:33:15 +0800
Subject: [PATCH 2902/4878] iommu/io-pgtable-arm-v7s: Add error handle for page
 table allocation failure

commit a556cfe4cabc6d79cbb7733f118bbb420b376fe6 upstream.

In __arm_v7s_alloc_table function:
iommu call kmem_cache_alloc to allocate page table, this function
allocate memory may fail, when kmem_cache_alloc fails to allocate
table, call virt_to_phys will be abnomal and return unexpected phys
and goto out_free, then call kmem_cache_free to release table will
trigger KE, __get_free_pages and free_pages have similar problem,
so add error handle for page table allocation failure.

Fixes: 29859aeb8a6e ("iommu/io-pgtable-arm-v7s: Abort allocation when table address overflows the PTE")
Signed-off-by: Yunfei Wang <yf.wang@mediatek.com>
Cc: <stable@vger.kernel.org> # 5.10.*
Acked-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20211207113315.29109-1-yf.wang@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/io-pgtable-arm-v7s.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index a688f22cbe3b5..3bcd3afe97783 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -242,13 +242,17 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 			__GFP_ZERO | ARM_V7S_TABLE_GFP_DMA, get_order(size));
 	else if (lvl == 2)
 		table = kmem_cache_zalloc(data->l2_tables, gfp);
+
+	if (!table)
+		return NULL;
+
 	phys = virt_to_phys(table);
 	if (phys != (arm_v7s_iopte)phys) {
 		/* Doesn't fit in PTE */
 		dev_err(dev, "Page table does not fit in PTE: %pa", &phys);
 		goto out_free;
 	}
-	if (table && !cfg->coherent_walk) {
+	if (!cfg->coherent_walk) {
 		dma = dma_map_single(dev, table, size, DMA_TO_DEVICE);
 		if (dma_mapping_error(dev, dma))
 			goto out_free;
-- 
GitLab


From 191a24ceae750cd25c82b1dcf05b32df8d8d95b7 Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <digetx@gmail.com>
Date: Sat, 4 Dec 2021 17:58:48 +0300
Subject: [PATCH 2903/4878] gpu: host1x: Add back arm_iommu_detach_device()

commit d5185965c3b59073c4520bad7dd2adf725b9abba upstream.

Host1x DMA buffer isn't mapped properly when CONFIG_ARM_DMA_USE_IOMMU=y.
The memory management code of Host1x driver has a longstanding overhaul
overdue and it's not obvious where the problem is in this case. Hence
let's add back the old workaround which we already had sometime before.
It explicitly detaches Host1x device from the offending implicit IOMMU
domain. This fixes a completely broken Host1x DMA in case of ARM32
multiplatform kernel config.

Cc: stable@vger.kernel.org
Fixes: af1cbfb9bf0f ("gpu: host1x: Support DMA mapping of buffers")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/host1x/dev.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index d0ebb70e2fdd6..a2c09dca4eef9 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -18,6 +18,10 @@
 #include <trace/events/host1x.h>
 #undef CREATE_TRACE_POINTS
 
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+#include <asm/dma-iommu.h>
+#endif
+
 #include "bus.h"
 #include "channel.h"
 #include "debug.h"
@@ -232,6 +236,17 @@ static struct iommu_domain *host1x_iommu_attach(struct host1x *host)
 	struct iommu_domain *domain = iommu_get_domain_for_dev(host->dev);
 	int err;
 
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+	if (host->dev->archdata.mapping) {
+		struct dma_iommu_mapping *mapping =
+				to_dma_iommu_mapping(host->dev);
+		arm_iommu_detach_device(host->dev);
+		arm_iommu_release_mapping(mapping);
+
+		domain = iommu_get_domain_for_dev(host->dev);
+	}
+#endif
+
 	/*
 	 * We may not always want to enable IOMMU support (for example if the
 	 * host1x firewall is already enabled and we don't support addressing
-- 
GitLab


From 45c74f4f54db9fa87d921225dc5f31776b854254 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= <thomas.hellstrom@linux.intel.com>
Date: Mon, 29 Nov 2021 16:27:27 +0100
Subject: [PATCH 2904/4878] dma_fence_array: Fix PENDING_ERROR leak in
 dma_fence_array_signaled()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 95d35838880fb040ccb9fe4a48816bd0c8b62df5 upstream.

If a dma_fence_array is reported signaled by a call to
dma_fence_is_signaled(), it may leak the PENDING_ERROR status.

Fix this by clearing the PENDING_ERROR status if we return true in
dma_fence_array_signaled().

v2:
- Update Cc list, and add R-b.

Fixes: 1f70b8b812f3 ("dma-fence: Propagate errors to dma-fence-array container")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Christian König <christian.koenig@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211129152727.448908-1-thomas.hellstrom@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma-buf/dma-fence-array.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-fence-array.c b/drivers/dma-buf/dma-fence-array.c
index d3fbd950be944..3e07f961e2f3d 100644
--- a/drivers/dma-buf/dma-fence-array.c
+++ b/drivers/dma-buf/dma-fence-array.c
@@ -104,7 +104,11 @@ static bool dma_fence_array_signaled(struct dma_fence *fence)
 {
 	struct dma_fence_array *array = to_dma_fence_array(fence);
 
-	return atomic_read(&array->num_pending) <= 0;
+	if (atomic_read(&array->num_pending) > 0)
+		return false;
+
+	dma_fence_array_clear_pending_error(array);
+	return true;
 }
 
 static void dma_fence_array_release(struct dma_fence *fence)
-- 
GitLab


From 2142a7e9bd1f4c051fd74ee15ba01528e54eb390 Mon Sep 17 00:00:00 2001
From: Yifeng Li <tomli@tomli.me>
Date: Thu, 2 Dec 2021 06:35:21 +0000
Subject: [PATCH 2905/4878] PCI: Add function 1 DMA alias quirk for Marvell
 88SE9125 SATA controller
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e445375882883f69018aa669b67cbb37ec873406 upstream.

Like other SATA controller chips in the Marvell 88SE91xx series, the
Marvell 88SE9125 has the same DMA requester ID hardware bug that prevents
it from working under IOMMU.  Add it to the list of devices that need the
quirk.

Without this patch, device initialization fails with DMA errors:

  ata8: softreset failed (1st FIS failed)
  DMAR: DRHD: handling fault status reg 2
  DMAR: [DMA Write NO_PASID] Request device [03:00.1] fault addr 0xfffc0000 [fault reason 0x02] Present bit in context entry is clear
  DMAR: DRHD: handling fault status reg 2
  DMAR: [DMA Read NO_PASID] Request device [03:00.1] fault addr 0xfffc0000 [fault reason 0x02] Present bit in context entry is clear

After applying the patch, the controller can be successfully initialized:

  ata8: SATA link up 1.5 Gbps (SStatus 113 SControl 330)
  ata8.00: ATAPI: PIONEER BD-RW   BDR-207M, 1.21, max UDMA/100
  ata8.00: configured for UDMA/100
  scsi 7:0:0:0: CD-ROM            PIONEER  BD-RW   BDR-207M 1.21 PQ: 0 ANSI: 5

Link: https://lore.kernel.org/r/YahpKVR+McJVDdkD@work
Reported-by: Sam Bingner <sam@bingner.com>
Tested-by: Sam Bingner <sam@bingner.com>
Tested-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index bb863ddb59bfc..95fcc735c88e7 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4077,6 +4077,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9120,
 			 quirk_dma_func1_alias);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9123,
 			 quirk_dma_func1_alias);
+/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c136 */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9125,
+			 quirk_dma_func1_alias);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9128,
 			 quirk_dma_func1_alias);
 /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */
-- 
GitLab


From d2e572411738a5aad67901caef8e083fb9df29fd Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Fri, 14 Jan 2022 14:07:37 -0800
Subject: [PATCH 2906/4878] mm_zone: add function to check if managed dma zone
 exists

commit 62b3107073646e0946bd97ff926832bafb846d17 upstream.

Patch series "Handle warning of allocation failure on DMA zone w/o
managed pages", v4.

**Problem observed:
On x86_64, when crash is triggered and entering into kdump kernel, page
allocation failure can always be seen.

 ---------------------------------
 DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
 swapper/0: page allocation failure: order:5, mode:0xcc1(GFP_KERNEL|GFP_DMA), nodemask=(null),cpuset=/,mems_allowed=0
 CPU: 0 PID: 1 Comm: swapper/0
 Call Trace:
  dump_stack+0x7f/0xa1
  warn_alloc.cold+0x72/0xd6
  ......
  __alloc_pages+0x24d/0x2c0
  ......
  dma_atomic_pool_init+0xdb/0x176
  do_one_initcall+0x67/0x320
  ? rcu_read_lock_sched_held+0x3f/0x80
  kernel_init_freeable+0x290/0x2dc
  ? rest_init+0x24f/0x24f
  kernel_init+0xa/0x111
  ret_from_fork+0x22/0x30
 Mem-Info:
 ------------------------------------

***Root cause:
In the current kernel, it assumes that DMA zone must have managed pages
and try to request pages if CONFIG_ZONE_DMA is enabled. While this is not
always true. E.g in kdump kernel of x86_64, only low 1M is presented and
locked down at very early stage of boot, so that this low 1M won't be
added into buddy allocator to become managed pages of DMA zone. This
exception will always cause page allocation failure if page is requested
from DMA zone.

***Investigation:
This failure happens since below commit merged into linus's tree.
  1a6a9044b967 x86/setup: Remove CONFIG_X86_RESERVE_LOW and reservelow= options
  23721c8e92f7 x86/crash: Remove crash_reserve_low_1M()
  f1d4d47c5851 x86/setup: Always reserve the first 1M of RAM
  7c321eb2b843 x86/kdump: Remove the backup region handling
  6f599d84231f x86/kdump: Always reserve the low 1M when the crashkernel option is specified

Before them, on x86_64, the low 640K area will be reused by kdump kernel.
So in kdump kernel, the content of low 640K area is copied into a backup
region for dumping before jumping into kdump. Then except of those firmware
reserved region in [0, 640K], the left area will be added into buddy
allocator to become available managed pages of DMA zone.

However, after above commits applied, in kdump kernel of x86_64, the low
1M is reserved by memblock, but not released to buddy allocator. So any
later page allocation requested from DMA zone will fail.

At the beginning, if crashkernel is reserved, the low 1M need be locked
down because AMD SME encrypts memory making the old backup region
mechanims impossible when switching into kdump kernel.

Later, it was also observed that there are BIOSes corrupting memory
under 1M. To solve this, in commit f1d4d47c5851, the entire region of
low 1M is always reserved after the real mode trampoline is allocated.

Besides, recently, Intel engineer mentioned their TDX (Trusted domain
extensions) which is under development in kernel also needs to lock down
the low 1M. So we can't simply revert above commits to fix the page allocation
failure from DMA zone as someone suggested.

***Solution:
Currently, only DMA atomic pool and dma-kmalloc will initialize and
request page allocation with GFP_DMA during bootup.

So only initializ DMA atomic pool when DMA zone has available managed
pages, otherwise just skip the initialization.

For dma-kmalloc(), for the time being, let's mute the warning of
allocation failure if requesting pages from DMA zone while no manged
pages.  Meanwhile, change code to use dma_alloc_xx/dma_map_xx API to
replace kmalloc(GFP_DMA), or do not use GFP_DMA when calling kmalloc() if
not necessary.  Christoph is posting patches to fix those under
drivers/scsi/.  Finally, we can remove the need of dma-kmalloc() as people
suggested.

This patch (of 3):

In some places of the current kernel, it assumes that dma zone must have
managed pages if CONFIG_ZONE_DMA is enabled.  While this is not always
true.  E.g in kdump kernel of x86_64, only low 1M is presented and locked
down at very early stage of boot, so that there's no managed pages at all
in DMA zone.  This exception will always cause page allocation failure if
page is requested from DMA zone.

Here add function has_managed_dma() and the relevant helper functions to
check if there's DMA zone with managed pages.  It will be used in later
patches.

Link: https://lkml.kernel.org/r/20211223094435.248523-1-bhe@redhat.com
Link: https://lkml.kernel.org/r/20211223094435.248523-2-bhe@redhat.com
Fixes: 6f599d84231f ("x86/kdump: Always reserve the low 1M when the crashkernel option is specified")
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: John Donnelly  <john.p.donnelly@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/mmzone.h |  9 +++++++++
 mm/page_alloc.c        | 15 +++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 63b550403317a..c142a152d6a41 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -938,6 +938,15 @@ static inline int is_highmem_idx(enum zone_type idx)
 #endif
 }
 
+#ifdef CONFIG_ZONE_DMA
+bool has_managed_dma(void);
+#else
+static inline bool has_managed_dma(void)
+{
+	return false;
+}
+#endif
+
 /**
  * is_highmem - helper function to quickly check if a struct zone is a
  *              highmem zone or not.  This is an attempt to keep references
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e8e0f1cec8b04..2d97073f7aa82 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8903,3 +8903,18 @@ bool take_page_off_buddy(struct page *page)
 	return ret;
 }
 #endif
+
+#ifdef CONFIG_ZONE_DMA
+bool has_managed_dma(void)
+{
+	struct pglist_data *pgdat;
+
+	for_each_online_pgdat(pgdat) {
+		struct zone *zone = &pgdat->node_zones[ZONE_DMA];
+
+		if (managed_zone(zone))
+			return true;
+	}
+	return false;
+}
+#endif /* CONFIG_ZONE_DMA */
-- 
GitLab


From e04b1dfe15cefe465060e3ab1eb4328ce255e051 Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Fri, 14 Jan 2022 14:07:41 -0800
Subject: [PATCH 2907/4878] dma/pool: create dma atomic pool only if dma zone
 has managed pages

commit a674e48c5443d12a8a43c3ac42367aa39505d506 upstream.

Currently three dma atomic pools are initialized as long as the relevant
kernel codes are built in.  While in kdump kernel of x86_64, this is not
right when trying to create atomic_pool_dma, because there's no managed
pages in DMA zone.  In the case, DMA zone only has low 1M memory
presented and locked down by memblock allocator.  So no pages are added
into buddy of DMA zone.  Please check commit f1d4d47c5851 ("x86/setup:
Always reserve the first 1M of RAM").

Then in kdump kernel of x86_64, it always prints below failure message:

 DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations
 swapper/0: page allocation failure: order:5, mode:0xcc1(GFP_KERNEL|GFP_DMA), nodemask=(null),cpuset=/,mems_allowed=0
 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-0.rc5.20210611git929d931f2b40.42.fc35.x86_64 #1
 Hardware name: Dell Inc. PowerEdge R910/0P658H, BIOS 2.12.0 06/04/2018
 Call Trace:
  dump_stack+0x7f/0xa1
  warn_alloc.cold+0x72/0xd6
  __alloc_pages_slowpath.constprop.0+0xf29/0xf50
  __alloc_pages+0x24d/0x2c0
  alloc_page_interleave+0x13/0xb0
  atomic_pool_expand+0x118/0x210
  __dma_atomic_pool_init+0x45/0x93
  dma_atomic_pool_init+0xdb/0x176
  do_one_initcall+0x67/0x320
  kernel_init_freeable+0x290/0x2dc
  kernel_init+0xa/0x111
  ret_from_fork+0x22/0x30
 Mem-Info:
 ......
 DMA: failed to allocate 128 KiB GFP_KERNEL|GFP_DMA pool for atomic allocation
 DMA: preallocated 128 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations

Here, let's check if DMA zone has managed pages, then create
atomic_pool_dma if yes.  Otherwise just skip it.

Link: https://lkml.kernel.org/r/20211223094435.248523-3-bhe@redhat.com
Fixes: 6f599d84231f ("x86/kdump: Always reserve the low 1M when the crashkernel option is specified")
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: John Donnelly  <john.p.donnelly@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: David Rientjes <rientjes@google.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/dma/pool.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c
index d4637f72239b4..b9082b572e0f8 100644
--- a/kernel/dma/pool.c
+++ b/kernel/dma/pool.c
@@ -206,7 +206,7 @@ static int __init dma_atomic_pool_init(void)
 						    GFP_KERNEL);
 	if (!atomic_pool_kernel)
 		ret = -ENOMEM;
-	if (IS_ENABLED(CONFIG_ZONE_DMA)) {
+	if (has_managed_dma()) {
 		atomic_pool_dma = __dma_atomic_pool_init(atomic_pool_size,
 						GFP_KERNEL | GFP_DMA);
 		if (!atomic_pool_dma)
@@ -229,7 +229,7 @@ static inline struct gen_pool *dma_guess_pool(struct gen_pool *prev, gfp_t gfp)
 	if (prev == NULL) {
 		if (IS_ENABLED(CONFIG_ZONE_DMA32) && (gfp & GFP_DMA32))
 			return atomic_pool_dma32;
-		if (IS_ENABLED(CONFIG_ZONE_DMA) && (gfp & GFP_DMA))
+		if (atomic_pool_dma && (gfp & GFP_DMA))
 			return atomic_pool_dma;
 		return atomic_pool_kernel;
 	}
-- 
GitLab


From 6c6f86bb618b73007dc2bc8d4b4003f80ba1efeb Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Fri, 14 Jan 2022 14:07:44 -0800
Subject: [PATCH 2908/4878] mm/page_alloc.c: do not warn allocation failure on
 zone DMA if no managed pages

commit c4dc63f0032c77464fbd4e7a6afc22fa6913c4a7 upstream.

In kdump kernel of x86_64, page allocation failure is observed:

 kworker/u2:2: page allocation failure: order:0, mode:0xcc1(GFP_KERNEL|GFP_DMA), nodemask=(null),cpuset=/,mems_allowed=0
 CPU: 0 PID: 55 Comm: kworker/u2:2 Not tainted 5.16.0-rc4+ #5
 Hardware name: AMD Dinar/Dinar, BIOS RDN1505B 06/05/2013
 Workqueue: events_unbound async_run_entry_fn
 Call Trace:
  <TASK>
  dump_stack_lvl+0x48/0x5e
  warn_alloc.cold+0x72/0xd6
  __alloc_pages_slowpath.constprop.0+0xc69/0xcd0
  __alloc_pages+0x1df/0x210
  new_slab+0x389/0x4d0
  ___slab_alloc+0x58f/0x770
  __slab_alloc.constprop.0+0x4a/0x80
  kmem_cache_alloc_trace+0x24b/0x2c0
  sr_probe+0x1db/0x620
  ......
  device_add+0x405/0x920
  ......
  __scsi_add_device+0xe5/0x100
  ata_scsi_scan_host+0x97/0x1d0
  async_run_entry_fn+0x30/0x130
  process_one_work+0x1e8/0x3c0
  worker_thread+0x50/0x3b0
  ? rescuer_thread+0x350/0x350
  kthread+0x16b/0x190
  ? set_kthread_struct+0x40/0x40
  ret_from_fork+0x22/0x30
  </TASK>
 Mem-Info:
 ......

The above failure happened when calling kmalloc() to allocate buffer with
GFP_DMA.  It requests to allocate slab page from DMA zone while no managed
pages at all in there.

 sr_probe()
 --> get_capabilities()
     --> buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);

Because in the current kernel, dma-kmalloc will be created as long as
CONFIG_ZONE_DMA is enabled.  However, kdump kernel of x86_64 doesn't have
managed pages on DMA zone since commit 6f599d84231f ("x86/kdump: Always
reserve the low 1M when the crashkernel option is specified").  The
failure can be always reproduced.

For now, let's mute the warning of allocation failure if requesting pages
from DMA zone while no managed pages.

[akpm@linux-foundation.org: fix warning]

Link: https://lkml.kernel.org/r/20211223094435.248523-4-bhe@redhat.com
Fixes: 6f599d84231f ("x86/kdump: Always reserve the low 1M when the crashkernel option is specified")
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: John Donnelly  <john.p.donnelly@oracle.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/page_alloc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2d97073f7aa82..c63656c42e288 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3964,7 +3964,9 @@ void warn_alloc(gfp_t gfp_mask, nodemask_t *nodemask, const char *fmt, ...)
 	va_list args;
 	static DEFINE_RATELIMIT_STATE(nopage_rs, 10*HZ, 1);
 
-	if ((gfp_mask & __GFP_NOWARN) || !__ratelimit(&nopage_rs))
+	if ((gfp_mask & __GFP_NOWARN) ||
+	     !__ratelimit(&nopage_rs) ||
+	     ((gfp_mask & __GFP_DMA) && !has_managed_dma()))
 		return;
 
 	va_start(args, fmt);
-- 
GitLab


From 7b9fa915a58d441437f13724fabb51c605a49fbd Mon Sep 17 00:00:00 2001
From: Gang Li <ligang.bdlg@bytedance.com>
Date: Fri, 14 Jan 2022 14:05:23 -0800
Subject: [PATCH 2909/4878] shmem: fix a race between shmem_unused_huge_shrink
 and shmem_evict_inode

commit 62c9827cbb996c2c04f615ecd783ce28bcea894b upstream.

Fix a data race in commit 779750d20b93 ("shmem: split huge pages beyond
i_size under memory pressure").

Here are call traces causing race:

   Call Trace 1:
     shmem_unused_huge_shrink+0x3ae/0x410
     ? __list_lru_walk_one.isra.5+0x33/0x160
     super_cache_scan+0x17c/0x190
     shrink_slab.part.55+0x1ef/0x3f0
     shrink_node+0x10e/0x330
     kswapd+0x380/0x740
     kthread+0xfc/0x130
     ? mem_cgroup_shrink_node+0x170/0x170
     ? kthread_create_on_node+0x70/0x70
     ret_from_fork+0x1f/0x30

   Call Trace 2:
     shmem_evict_inode+0xd8/0x190
     evict+0xbe/0x1c0
     do_unlinkat+0x137/0x330
     do_syscall_64+0x76/0x120
     entry_SYSCALL_64_after_hwframe+0x3d/0xa2

A simple explanation:

Image there are 3 items in the local list (@list).  In the first
traversal, A is not deleted from @list.

  1)    A->B->C
        ^
        |
        pos (leave)

In the second traversal, B is deleted from @list.  Concurrently, A is
deleted from @list through shmem_evict_inode() since last reference
counter of inode is dropped by other thread.  Then the @list is corrupted.

  2)    A->B->C
        ^  ^
        |  |
     evict pos (drop)

We should make sure the inode is either on the global list or deleted from
any local list before iput().

Fixed by moving inodes back to global list before we put them.

[akpm@linux-foundation.org: coding style fixes]

Link: https://lkml.kernel.org/r/20211125064502.99983-1-ligang.bdlg@bytedance.com
Fixes: 779750d20b93 ("shmem: split huge pages beyond i_size under memory pressure")
Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/shmem.c | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index ae8adca3b56d1..d3d8c5e7a296b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -527,7 +527,7 @@ static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo,
 	struct shmem_inode_info *info;
 	struct page *page;
 	unsigned long batch = sc ? sc->nr_to_scan : 128;
-	int removed = 0, split = 0;
+	int split = 0;
 
 	if (list_empty(&sbinfo->shrinklist))
 		return SHRINK_STOP;
@@ -542,7 +542,6 @@ static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo,
 		/* inode is about to be evicted */
 		if (!inode) {
 			list_del_init(&info->shrinklist);
-			removed++;
 			goto next;
 		}
 
@@ -550,12 +549,12 @@ static unsigned long shmem_unused_huge_shrink(struct shmem_sb_info *sbinfo,
 		if (round_up(inode->i_size, PAGE_SIZE) ==
 				round_up(inode->i_size, HPAGE_PMD_SIZE)) {
 			list_move(&info->shrinklist, &to_remove);
-			removed++;
 			goto next;
 		}
 
 		list_move(&info->shrinklist, &list);
 next:
+		sbinfo->shrinklist_len--;
 		if (!--batch)
 			break;
 	}
@@ -575,7 +574,7 @@ next:
 		inode = &info->vfs_inode;
 
 		if (nr_to_split && split >= nr_to_split)
-			goto leave;
+			goto move_back;
 
 		page = find_get_page(inode->i_mapping,
 				(inode->i_size & HPAGE_PMD_MASK) >> PAGE_SHIFT);
@@ -589,38 +588,44 @@ next:
 		}
 
 		/*
-		 * Leave the inode on the list if we failed to lock
-		 * the page at this time.
+		 * Move the inode on the list back to shrinklist if we failed
+		 * to lock the page at this time.
 		 *
 		 * Waiting for the lock may lead to deadlock in the
 		 * reclaim path.
 		 */
 		if (!trylock_page(page)) {
 			put_page(page);
-			goto leave;
+			goto move_back;
 		}
 
 		ret = split_huge_page(page);
 		unlock_page(page);
 		put_page(page);
 
-		/* If split failed leave the inode on the list */
+		/* If split failed move the inode on the list back to shrinklist */
 		if (ret)
-			goto leave;
+			goto move_back;
 
 		split++;
 drop:
 		list_del_init(&info->shrinklist);
-		removed++;
-leave:
+		goto put;
+move_back:
+		/*
+		 * Make sure the inode is either on the global list or deleted
+		 * from any local list before iput() since it could be deleted
+		 * in another thread once we put the inode (then the local list
+		 * is corrupted).
+		 */
+		spin_lock(&sbinfo->shrinklist_lock);
+		list_move(&info->shrinklist, &sbinfo->shrinklist);
+		sbinfo->shrinklist_len++;
+		spin_unlock(&sbinfo->shrinklist_lock);
+put:
 		iput(inode);
 	}
 
-	spin_lock(&sbinfo->shrinklist_lock);
-	list_splice_tail(&list, &sbinfo->shrinklist);
-	sbinfo->shrinklist_len -= removed;
-	spin_unlock(&sbinfo->shrinklist_lock);
-
 	return split;
 }
 
-- 
GitLab


From ed0b1fd3ec6e4a033c07b023153248ca1837ec79 Mon Sep 17 00:00:00 2001
From: xinhui pan <xinhui.pan@amd.com>
Date: Wed, 10 Nov 2021 12:31:48 +0800
Subject: [PATCH 2910/4878] drm/ttm: Put BO in its memory manager's lru list
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 781050b0a3164934857c300bb0bc291e38c26b6f upstream.

After we move BO to a new memory region, we should put it to
the new memory manager's lru list regardless we unlock the resv or not.

Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211110043149.57554-1-xinhui.pan@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index eb4b7df02ca03..f673292eec9db 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -789,6 +789,8 @@ int ttm_mem_evict_first(struct ttm_bo_device *bdev,
 	ret = ttm_bo_evict(bo, ctx);
 	if (locked)
 		ttm_bo_unreserve(bo);
+	else
+		ttm_bo_move_to_lru_tail_unlocked(bo);
 
 	ttm_bo_put(bo);
 	return ret;
-- 
GitLab


From cb5813b0e5918b4ea5a863f2b66458c6aaa0a654 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Thu, 7 Oct 2021 13:26:25 -0700
Subject: [PATCH 2911/4878] Bluetooth: L2CAP: Fix not initializing sk_peer_pid

[ Upstream commit f5ff291098f70a70b344df1e388596755c3c8315 ]

In order to group sockets being connected using L2CAP_MODE_EXT_FLOWCTL
the pid is used but sk_peer_pid was not being initialized as it is
currently only done for af_unix.

Fixes: b48596d1dc25 ("Bluetooth: L2CAP: Add get_peer_pid callback")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/l2cap_sock.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 160c016a5dfb9..4574c5cb1b596 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -172,6 +172,21 @@ done:
 	return err;
 }
 
+static void l2cap_sock_init_pid(struct sock *sk)
+{
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+
+	/* Only L2CAP_MODE_EXT_FLOWCTL ever need to access the PID in order to
+	 * group the channels being requested.
+	 */
+	if (chan->mode != L2CAP_MODE_EXT_FLOWCTL)
+		return;
+
+	spin_lock(&sk->sk_peer_lock);
+	sk->sk_peer_pid = get_pid(task_tgid(current));
+	spin_unlock(&sk->sk_peer_lock);
+}
+
 static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 			      int alen, int flags)
 {
@@ -243,6 +258,8 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (chan->psm && bdaddr_type_is_le(chan->src_type) && !chan->mode)
 		chan->mode = L2CAP_MODE_LE_FLOWCTL;
 
+	l2cap_sock_init_pid(sk);
+
 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
 				 &la.l2_bdaddr, la.l2_bdaddr_type);
 	if (err)
@@ -298,6 +315,8 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
 		goto done;
 	}
 
+	l2cap_sock_init_pid(sk);
+
 	sk->sk_max_ack_backlog = backlog;
 	sk->sk_ack_backlog = 0;
 
-- 
GitLab


From 7798757013ec45e65656bafdb444eb4e675578d9 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Oct 2021 11:08:25 +0300
Subject: [PATCH 2912/4878] drm/bridge: display-connector: fix an uninitialized
 pointer in probe()

[ Upstream commit 189723fbe9aca18d6f7d638c59a40288030932b5 ]

The "label" pointer is used for debug output.  The code assumes that it
is either NULL or valid, but it is never set to NULL.  It is either
valid or uninitialized.

Fixes: 0c275c30176b ("drm/bridge: Add bridge driver for display connectors")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013080825.GE6010@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/display-connector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/display-connector.c b/drivers/gpu/drm/bridge/display-connector.c
index 4d278573cdb99..544a47335cac4 100644
--- a/drivers/gpu/drm/bridge/display-connector.c
+++ b/drivers/gpu/drm/bridge/display-connector.c
@@ -104,7 +104,7 @@ static int display_connector_probe(struct platform_device *pdev)
 {
 	struct display_connector *conn;
 	unsigned int type;
-	const char *label;
+	const char *label = NULL;
 	int ret;
 
 	conn = devm_kzalloc(&pdev->dev, sizeof(*conn), GFP_KERNEL);
-- 
GitLab


From 0499c863a8dbe22f1450e2cb3c14131956d91dd1 Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Wed, 13 Oct 2021 19:41:39 +0800
Subject: [PATCH 2913/4878] drm: fix null-ptr-deref in drm_dev_init_release()

[ Upstream commit acf20ed020ffa4d6cc8347e8d356509b95df3cbe ]

I got a null-ptr-deref report:

[drm:drm_dev_init [drm]] *ERROR* Cannot allocate anonymous inode: -12
==================================================================
BUG: KASAN: null-ptr-deref in iput+0x3c/0x4a0
...
Call Trace:
 dump_stack_lvl+0x6c/0x8b
 kasan_report.cold+0x64/0xdb
 __asan_load8+0x69/0x90
 iput+0x3c/0x4a0
 drm_dev_init_release+0x39/0xb0 [drm]
 drm_managed_release+0x158/0x2d0 [drm]
 drm_dev_init+0x3a7/0x4c0 [drm]
 __devm_drm_dev_alloc+0x55/0xd0 [drm]
 mi0283qt_probe+0x8a/0x2b5 [mi0283qt]
 spi_probe+0xeb/0x130
...
 entry_SYSCALL_64_after_hwframe+0x44/0xae

If drm_fs_inode_new() fails in drm_dev_init(), dev->anon_inode will point
to PTR_ERR(...) instead of NULL. This will result in null-ptr-deref when
drm_fs_inode_free(dev->anon_inode) is called.

drm_dev_init()
	drm_fs_inode_new() // fail, dev->anon_inode = PTR_ERR(...)
	drm_managed_release()
		drm_dev_init_release()
			drm_fs_inode_free() // access non-existent anon_inode

Define a temp variable and assign it to dev->anon_inode if the temp
variable is not PTR_ERR.

Fixes: 2cbf7fc6718b ("drm: Use drmm_ for drm_dev_init cleanup")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013114139.4042207-1-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_drv.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index cd162d406078a..006e3b896caea 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -577,6 +577,7 @@ static int drm_dev_init(struct drm_device *dev,
 			struct drm_driver *driver,
 			struct device *parent)
 {
+	struct inode *inode;
 	int ret;
 
 	if (!drm_core_init_complete) {
@@ -613,13 +614,15 @@ static int drm_dev_init(struct drm_device *dev,
 	if (ret)
 		return ret;
 
-	dev->anon_inode = drm_fs_inode_new();
-	if (IS_ERR(dev->anon_inode)) {
-		ret = PTR_ERR(dev->anon_inode);
+	inode = drm_fs_inode_new();
+	if (IS_ERR(inode)) {
+		ret = PTR_ERR(inode);
 		DRM_ERROR("Cannot allocate anonymous inode: %d\n", ret);
 		goto err;
 	}
 
+	dev->anon_inode = inode;
+
 	if (drm_core_check_feature(dev, DRIVER_RENDER)) {
 		ret = drm_minor_alloc(dev, DRM_MINOR_RENDER);
 		if (ret)
-- 
GitLab


From b01b7b868479f00e4f9b570cdb222d0a021ab719 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Thu, 23 Sep 2021 17:33:53 -0700
Subject: [PATCH 2914/4878] drm/panel: kingdisplay-kd097d04: Delete panel on
 attach() failure

[ Upstream commit 5f31dbeae8a88f31c3eb4eb526ab4807c40da241 ]

If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't
ready), we leave a dangling drm_panel reference to freed memory. Clean
that up on failure.

Fixes: 2a994cbed6b2 ("drm/panel: Add Kingdisplay KD097D04 panel driver")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210923173336.1.Icb4d9dbc1817f4e826361a4f1cea7461541668f0@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
index 86e4213e8bb13..daccb1fd5fdad 100644
--- a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
@@ -406,7 +406,13 @@ static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
 	if (err < 0)
 		return err;
 
-	return mipi_dsi_attach(dsi);
+	err = mipi_dsi_attach(dsi);
+	if (err < 0) {
+		kingdisplay_panel_del(kingdisplay);
+		return err;
+	}
+
+	return 0;
 }
 
 static int kingdisplay_panel_remove(struct mipi_dsi_device *dsi)
-- 
GitLab


From 9bc19022aa08a1c0f30780df0275c4ee77a1ca2c Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Thu, 23 Sep 2021 17:33:54 -0700
Subject: [PATCH 2915/4878] drm/panel: innolux-p079zca: Delete panel on
 attach() failure

[ Upstream commit 32a267e9c057e1636e7afdd20599aa5741a73079 ]

If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't
ready), we leave a dangling drm_panel reference to freed memory. Clean
that up on failure.

This problem exists since the driver's introduction, but is especially
relevant after refactored for dual-DSI variants.

Fixes: 14c8f2e9f8ea ("drm/panel: add Innolux P079ZCA panel driver")
Fixes: 7ad4e4636c54 ("drm/panel: p079zca: Refactor panel driver to support multiple panels")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210923173336.2.I9023cf8811a3abf4964ed84eb681721d8bb489d6@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/panel/panel-innolux-p079zca.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
index aea3162253914..f194b62e290ca 100644
--- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c
+++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
@@ -484,6 +484,7 @@ static void innolux_panel_del(struct innolux_panel *innolux)
 static int innolux_panel_probe(struct mipi_dsi_device *dsi)
 {
 	const struct panel_desc *desc;
+	struct innolux_panel *innolux;
 	int err;
 
 	desc = of_device_get_match_data(&dsi->dev);
@@ -495,7 +496,14 @@ static int innolux_panel_probe(struct mipi_dsi_device *dsi)
 	if (err < 0)
 		return err;
 
-	return mipi_dsi_attach(dsi);
+	err = mipi_dsi_attach(dsi);
+	if (err < 0) {
+		innolux = mipi_dsi_get_drvdata(dsi);
+		innolux_panel_del(innolux);
+		return err;
+	}
+
+	return 0;
 }
 
 static int innolux_panel_remove(struct mipi_dsi_device *dsi)
-- 
GitLab


From 8ccaafa1caf0702194c77e71a853ac5c4c0b429b Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Tue, 28 Sep 2021 14:35:51 -0700
Subject: [PATCH 2916/4878] drm/rockchip: dsi: Fix unbalanced clock on probe
 error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 251888398753924059f3bb247a44153a2853137f ]

Our probe() function never enabled this clock, so we shouldn't disable
it if we fail to probe the bridge.

Noted by inspection.

Fixes: 2d4f7bdafd70 ("drm/rockchip: dsi: migrate to use dw-mipi-dsi bridge driver")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210928143413.v3.3.Ie8ceefb51ab6065a1151869b6fcda41a467d4d2c@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index d0c9610ad2202..433b2f459a7d9 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -1126,14 +1126,10 @@ static int dw_mipi_dsi_rockchip_probe(struct platform_device *pdev)
 		if (ret != -EPROBE_DEFER)
 			DRM_DEV_ERROR(dev,
 				      "Failed to probe dw_mipi_dsi: %d\n", ret);
-		goto err_clkdisable;
+		return ret;
 	}
 
 	return 0;
-
-err_clkdisable:
-	clk_disable_unprepare(dsi->pllref_clk);
-	return ret;
 }
 
 static int dw_mipi_dsi_rockchip_remove(struct platform_device *pdev)
-- 
GitLab


From 6215cde02085daf42d5b56fcd0a7b1cbe77766b5 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Tue, 28 Sep 2021 14:35:49 -0700
Subject: [PATCH 2917/4878] drm/rockchip: dsi: Hold pm-runtime across
 bind/unbind
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 514db871922f103886ad4d221cf406b4fcc5e74a upstream.

In commit 43c2de1002d2 ("drm/rockchip: dsi: move all lane config except
LCDC mux to bind()"), we moved most HW configuration to bind(), but we
didn't move the runtime PM management. Therefore, depending on initial
boot state, runtime-PM workqueue delays, and other timing factors, we
may disable our power domain in between the hardware configuration
(bind()) and when we enable the display. This can cause us to lose
hardware state and fail to configure our display. For example:

  dw-mipi-dsi-rockchip ff968000.mipi: failed to write command FIFO
  panel-innolux-p079zca ff960000.mipi.0: failed to write command 0

or:

  dw-mipi-dsi-rockchip ff968000.mipi: failed to write command FIFO
  panel-kingdisplay-kd097d04 ff960000.mipi.0: failed write init cmds: -110

We should match the runtime PM to the lifetime of the bind()/unbind()
cycle.

Tested on Acer Chrometab 10 (RK3399 Gru-Scarlet), with panel drivers
built either as modules or built-in.

Side notes: it seems one is more likely to see this problem when the
panel driver is built into the kernel. I've also seen this problem
bisect down to commits that simply changed Kconfig dependencies, because
it changed the order in which driver init functions were compiled into
the kernel, and therefore the ordering and timing of built-in device
probe.

Fixes: 43c2de1002d2 ("drm/rockchip: dsi: move all lane config except LCDC mux to bind()")
Link: https://lore.kernel.org/linux-rockchip/9aedfb528600ecf871885f7293ca4207c84d16c1.camel@gmail.com/
Reported-by: <aleksandr.o.makarov@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210928143413.v3.1.Ic2904d37f30013a7f3d8476203ad3733c186827e@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c   | 37 ++++++++++---------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 433b2f459a7d9..d3cea42dde436 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -753,10 +753,6 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
 	if (mux < 0)
 		return;
 
-	pm_runtime_get_sync(dsi->dev);
-	if (dsi->slave)
-		pm_runtime_get_sync(dsi->slave->dev);
-
 	/*
 	 * For the RK3399, the clk of grf must be enabled before writing grf
 	 * register. And for RK3288 or other soc, this grf_clk must be NULL,
@@ -775,20 +771,10 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
 	clk_disable_unprepare(dsi->grf_clk);
 }
 
-static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
-{
-	struct dw_mipi_dsi_rockchip *dsi = to_dsi(encoder);
-
-	if (dsi->slave)
-		pm_runtime_put(dsi->slave->dev);
-	pm_runtime_put(dsi->dev);
-}
-
 static const struct drm_encoder_helper_funcs
 dw_mipi_dsi_encoder_helper_funcs = {
 	.atomic_check = dw_mipi_dsi_encoder_atomic_check,
 	.enable = dw_mipi_dsi_encoder_enable,
-	.disable = dw_mipi_dsi_encoder_disable,
 };
 
 static int rockchip_dsi_drm_create_encoder(struct dw_mipi_dsi_rockchip *dsi,
@@ -918,10 +904,14 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 		put_device(second);
 	}
 
+	pm_runtime_get_sync(dsi->dev);
+	if (dsi->slave)
+		pm_runtime_get_sync(dsi->slave->dev);
+
 	ret = clk_prepare_enable(dsi->pllref_clk);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "Failed to enable pllref_clk: %d\n", ret);
-		return ret;
+		goto out_pm_runtime;
 	}
 
 	/*
@@ -933,7 +923,7 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 	ret = clk_prepare_enable(dsi->grf_clk);
 	if (ret) {
 		DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
-		return ret;
+		goto out_pm_runtime;
 	}
 
 	dw_mipi_dsi_rockchip_config(dsi);
@@ -945,16 +935,23 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 	ret = rockchip_dsi_drm_create_encoder(dsi, drm_dev);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "Failed to create drm encoder\n");
-		return ret;
+		goto out_pm_runtime;
 	}
 
 	ret = dw_mipi_dsi_bind(dsi->dmd, &dsi->encoder);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "Failed to bind: %d\n", ret);
-		return ret;
+		goto out_pm_runtime;
 	}
 
 	return 0;
+
+out_pm_runtime:
+	pm_runtime_put(dsi->dev);
+	if (dsi->slave)
+		pm_runtime_put(dsi->slave->dev);
+
+	return ret;
 }
 
 static void dw_mipi_dsi_rockchip_unbind(struct device *dev,
@@ -969,6 +966,10 @@ static void dw_mipi_dsi_rockchip_unbind(struct device *dev,
 	dw_mipi_dsi_unbind(dsi->dmd);
 
 	clk_disable_unprepare(dsi->pllref_clk);
+
+	pm_runtime_put(dsi->dev);
+	if (dsi->slave)
+		pm_runtime_put(dsi->slave->dev);
 }
 
 static const struct component_ops dw_mipi_dsi_rockchip_ops = {
-- 
GitLab


From 58904ed1862831fdbc54f361d197e328fef00e26 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Tue, 28 Sep 2021 14:35:52 -0700
Subject: [PATCH 2918/4878] drm/rockchip: dsi: Disable PLL clock on bind error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 5a614570172e1c9f59035d259dd735acd4f1c01b ]

Fix some error handling here noticed in review of other changes.

Fixes: 2d4f7bdafd70 ("drm/rockchip: dsi: migrate to use dw-mipi-dsi bridge driver")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reported-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210928143413.v3.4.I8bb7a91ecc411d56bc155763faa15f289d7fc074@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index d3cea42dde436..6691e45230126 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -923,7 +923,7 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 	ret = clk_prepare_enable(dsi->grf_clk);
 	if (ret) {
 		DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
-		goto out_pm_runtime;
+		goto out_pll_clk;
 	}
 
 	dw_mipi_dsi_rockchip_config(dsi);
@@ -935,17 +935,19 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 	ret = rockchip_dsi_drm_create_encoder(dsi, drm_dev);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "Failed to create drm encoder\n");
-		goto out_pm_runtime;
+		goto out_pll_clk;
 	}
 
 	ret = dw_mipi_dsi_bind(dsi->dmd, &dsi->encoder);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "Failed to bind: %d\n", ret);
-		goto out_pm_runtime;
+		goto out_pll_clk;
 	}
 
 	return 0;
 
+out_pll_clk:
+	clk_disable_unprepare(dsi->pllref_clk);
 out_pm_runtime:
 	pm_runtime_put(dsi->dev);
 	if (dsi->slave)
-- 
GitLab


From 9ddfa1c19191671a8aafcc5cf9181c3d0351be43 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Tue, 28 Sep 2021 14:35:50 -0700
Subject: [PATCH 2919/4878] drm/rockchip: dsi: Reconfigure hardware on resume()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e584cdc1549932f87a2707b56bc588cfac5d89e0 upstream.

Since commit 43c2de1002d2 ("drm/rockchip: dsi: move all lane config except
LCDC mux to bind()"), we perform most HW configuration in the bind()
function. This configuration may be lost on suspend/resume, so we
need to call it again. That may lead to errors like this after system
suspend/resume:

  dw-mipi-dsi-rockchip ff968000.mipi: failed to write command FIFO
  panel-kingdisplay-kd097d04 ff960000.mipi.0: failed write init cmds: -110

Tested on Acer Chromebook Tab 10 (RK3399 Gru-Scarlet).

Note that early mailing list versions of this driver borrowed Rockchip's
downstream/BSP solution, to do HW configuration in mode_set() (which
*is* called at the appropriate pre-enable() times), but that was
discarded along the way. I've avoided that still, because mode_set()
documentation doesn't suggest this kind of purpose as far as I can tell.

Fixes: 43c2de1002d2 ("drm/rockchip: dsi: move all lane config except LCDC mux to bind()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210928143413.v3.2.I4e9d93aadb00b1ffc7d506e3186a25492bf0b732@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../gpu/drm/rockchip/dw-mipi-dsi-rockchip.c   | 37 +++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
index 6691e45230126..b0fb3c3cba596 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c
@@ -243,6 +243,8 @@ struct dw_mipi_dsi_rockchip {
 	struct dw_mipi_dsi *dmd;
 	const struct rockchip_dw_dsi_chip_data *cdata;
 	struct dw_mipi_dsi_plat_data pdata;
+
+	bool dsi_bound;
 };
 
 struct dphy_pll_parameter_map {
@@ -944,6 +946,8 @@ static int dw_mipi_dsi_rockchip_bind(struct device *dev,
 		goto out_pll_clk;
 	}
 
+	dsi->dsi_bound = true;
+
 	return 0;
 
 out_pll_clk:
@@ -965,6 +969,8 @@ static void dw_mipi_dsi_rockchip_unbind(struct device *dev,
 	if (dsi->is_slave)
 		return;
 
+	dsi->dsi_bound = false;
+
 	dw_mipi_dsi_unbind(dsi->dmd);
 
 	clk_disable_unprepare(dsi->pllref_clk);
@@ -1029,6 +1035,36 @@ static const struct dw_mipi_dsi_host_ops dw_mipi_dsi_rockchip_host_ops = {
 	.detach = dw_mipi_dsi_rockchip_host_detach,
 };
 
+static int __maybe_unused dw_mipi_dsi_rockchip_resume(struct device *dev)
+{
+	struct dw_mipi_dsi_rockchip *dsi = dev_get_drvdata(dev);
+	int ret;
+
+	/*
+	 * Re-configure DSI state, if we were previously initialized. We need
+	 * to do this before rockchip_drm_drv tries to re-enable() any panels.
+	 */
+	if (dsi->dsi_bound) {
+		ret = clk_prepare_enable(dsi->grf_clk);
+		if (ret) {
+			DRM_DEV_ERROR(dsi->dev, "Failed to enable grf_clk: %d\n", ret);
+			return ret;
+		}
+
+		dw_mipi_dsi_rockchip_config(dsi);
+		if (dsi->slave)
+			dw_mipi_dsi_rockchip_config(dsi->slave);
+
+		clk_disable_unprepare(dsi->grf_clk);
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops dw_mipi_dsi_rockchip_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(NULL, dw_mipi_dsi_rockchip_resume)
+};
+
 static int dw_mipi_dsi_rockchip_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -1248,6 +1284,7 @@ struct platform_driver dw_mipi_dsi_rockchip_driver = {
 	.remove		= dw_mipi_dsi_rockchip_remove,
 	.driver		= {
 		.of_match_table = dw_mipi_dsi_rockchip_dt_ids,
+		.pm	= &dw_mipi_dsi_rockchip_pm_ops,
 		.name	= "dw-mipi-dsi-rockchip",
 	},
 };
-- 
GitLab


From 88f1b613c37fbd3c4171f5a9decdcd12ae704637 Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Mon, 25 Oct 2021 21:10:12 +0800
Subject: [PATCH 2920/4878] Bluetooth: cmtp: fix possible panic when
 cmtp_init_sockets() fails

[ Upstream commit 2a7ca7459d905febf519163bd9e3eed894de6bb7 ]

I got a kernel BUG report when doing fault injection test:

------------[ cut here ]------------
kernel BUG at lib/list_debug.c:45!
...
RIP: 0010:__list_del_entry_valid.cold+0x12/0x4d
...
Call Trace:
 proto_unregister+0x83/0x220
 cmtp_cleanup_sockets+0x37/0x40 [cmtp]
 cmtp_exit+0xe/0x1f [cmtp]
 do_syscall_64+0x35/0xb0
 entry_SYSCALL_64_after_hwframe+0x44/0xae

If cmtp_init_sockets() in cmtp_init() fails, cmtp_init() still returns
success. This will cause a kernel bug when accessing uncreated ctmp
related data when the module exits.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/cmtp/core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 0a2d78e811cf5..83eb84e8e688f 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -501,9 +501,7 @@ static int __init cmtp_init(void)
 {
 	BT_INFO("CMTP (CAPI Emulation) ver %s", VERSION);
 
-	cmtp_init_sockets();
-
-	return 0;
+	return cmtp_init_sockets();
 }
 
 static void __exit cmtp_exit(void)
-- 
GitLab


From 836dd37fe2bb0931e86fef788cdf44c3de4ff46d Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 22 Sep 2021 14:54:15 +0200
Subject: [PATCH 2921/4878] clk: bcm-2835: Pick the closest clock rate

[ Upstream commit 5517357a4733d7cf7c17fc79d0530cfa47add372 ]

The driver currently tries to pick the closest rate that is lower than
the rate being requested.

This causes an issue with clk_set_min_rate() since it actively checks
for the rounded rate to be above the minimum that was just set.

Let's change the logic a bit to pick the closest rate to the requested
rate, no matter if it's actually higher or lower.

Fixes: 6d18b8adbe67 ("clk: bcm2835: Support for clock parent selection")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Nicolas Saenz Julienne <nsaenz@kernel.org> # boot and basic functionality
Tested-by: Michael Stapelberg <michael@stapelberg.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210922125419.4125779-2-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/bcm/clk-bcm2835.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 1ac803e14fa3e..a919ee9c3fcb8 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1217,7 +1217,7 @@ static int bcm2835_clock_determine_rate(struct clk_hw *hw,
 		rate = bcm2835_clock_choose_div_and_prate(hw, i, req->rate,
 							  &div, &prate,
 							  &avgrate);
-		if (rate > best_rate && rate <= req->rate) {
+		if (abs(req->rate - rate) < abs(req->rate - best_rate)) {
 			best_parent = parent;
 			best_prate = prate;
 			best_rate = rate;
-- 
GitLab


From b9c2343373f6bf19358db4e50197f5b3a17831db Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 22 Sep 2021 14:54:16 +0200
Subject: [PATCH 2922/4878] clk: bcm-2835: Remove rounding up the dividers

[ Upstream commit 8ca011ef4af48a7af7b15afd8a4a44039dd04cea ]

The driver, once it found a divider, tries to round it up by increasing
the least significant bit of the fractional part by one when the
round_up argument is set and there's a remainder.

However, since it increases the divider it will actually reduce the
clock rate below what we were asking for, leading to issues with
clk_set_min_rate() that will complain that our rounded clock rate is
below the minimum of the rate.

Since the dividers are fairly precise already, let's remove that part so
that we can have clk_set_min_rate() working.

This is effectively a revert of 9c95b32ca093 ("clk: bcm2835: add a round
up ability to the clock divisor").

Fixes: 9c95b32ca093 ("clk: bcm2835: add a round up ability to the clock divisor")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Nicolas Saenz Julienne <nsaenz@kernel.org> # boot and basic functionality
Tested-by: Michael Stapelberg <michael@stapelberg.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210922125419.4125779-3-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/bcm/clk-bcm2835.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index a919ee9c3fcb8..178886823b90c 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -933,8 +933,7 @@ static int bcm2835_clock_is_on(struct clk_hw *hw)
 
 static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
 				    unsigned long rate,
-				    unsigned long parent_rate,
-				    bool round_up)
+				    unsigned long parent_rate)
 {
 	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
 	const struct bcm2835_clock_data *data = clock->data;
@@ -946,10 +945,6 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
 
 	rem = do_div(temp, rate);
 	div = temp;
-
-	/* Round up and mask off the unused bits */
-	if (round_up && ((div & unused_frac_mask) != 0 || rem != 0))
-		div += unused_frac_mask + 1;
 	div &= ~unused_frac_mask;
 
 	/* different clamping limits apply for a mash clock */
@@ -1080,7 +1075,7 @@ static int bcm2835_clock_set_rate(struct clk_hw *hw,
 	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
 	struct bcm2835_cprman *cprman = clock->cprman;
 	const struct bcm2835_clock_data *data = clock->data;
-	u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate, false);
+	u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate);
 	u32 ctl;
 
 	spin_lock(&cprman->regs_lock);
@@ -1131,7 +1126,7 @@ static unsigned long bcm2835_clock_choose_div_and_prate(struct clk_hw *hw,
 
 	if (!(BIT(parent_idx) & data->set_rate_parent)) {
 		*prate = clk_hw_get_rate(parent);
-		*div = bcm2835_clock_choose_div(hw, rate, *prate, true);
+		*div = bcm2835_clock_choose_div(hw, rate, *prate);
 
 		*avgrate = bcm2835_clock_rate_from_divisor(clock, *prate, *div);
 
-- 
GitLab


From e53ff4dd70959405926eb7e39f3c158cd8041bfe Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 22 Sep 2021 14:54:17 +0200
Subject: [PATCH 2923/4878] drm/vc4: hdmi: Set a default HSM rate

[ Upstream commit 3e85b81591609bb794bb00cd619b20965b5b38cd ]

When the firmware doesn't setup the HSM rate (such as when booting
without an HDMI cable plugged in), its rate is 0 and thus any register
access results in a CPU stall, even though HSM is enabled.

Let's enforce a minimum rate at boot to avoid this issue.

Fixes: 4f6e3d66ac52 ("drm/vc4: Add runtime PM support to the HDMI encoder driver")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Michael Stapelberg <michael@stapelberg.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210922125419.4125779-4-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index ee293f061f0a8..5d5c4e9a86218 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -79,6 +79,7 @@
 # define VC4_HD_M_SW_RST			BIT(2)
 # define VC4_HD_M_ENABLE			BIT(0)
 
+#define HSM_MIN_CLOCK_FREQ	120000000
 #define CEC_CLOCK_FREQ 40000
 #define VC4_HSM_MID_CLOCK 149985000
 
@@ -1806,6 +1807,19 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
 	vc4_hdmi->disable_wifi_frequencies =
 		of_property_read_bool(dev->of_node, "wifi-2.4ghz-coexistence");
 
+	/*
+	 * If we boot without any cable connected to the HDMI connector,
+	 * the firmware will skip the HSM initialization and leave it
+	 * with a rate of 0, resulting in a bus lockup when we're
+	 * accessing the registers even if it's enabled.
+	 *
+	 * Let's put a sensible default at runtime_resume so that we
+	 * don't end up in this situation.
+	 */
+	ret = clk_set_min_rate(vc4_hdmi->hsm_clock, HSM_MIN_CLOCK_FREQ);
+	if (ret)
+		goto err_put_ddc;
+
 	if (vc4_hdmi->variant->reset)
 		vc4_hdmi->variant->reset(vc4_hdmi);
 
-- 
GitLab


From fcb267bb957752e4535efd38ea20d82fa8f45b76 Mon Sep 17 00:00:00 2001
From: Benjamin Li <benl@squareup.com>
Date: Wed, 27 Oct 2021 10:03:05 -0700
Subject: [PATCH 2924/4878] wcn36xx: ensure pairing of init_scan/finish_scan
 and start_scan/end_scan

[ Upstream commit 8f1ba8b0ee2679f0b3d22d2a5c1bc70c436fd872 ]

An SMD capture from the downstream prima driver on WCN3680B shows the
following command sequence for connected scans:

- init_scan_req
    - start_scan_req, channel 1
    - end_scan_req, channel 1
    - start_scan_req, channel 2
    - ...
    - end_scan_req, channel 3
- finish_scan_req
- init_scan_req
    - start_scan_req, channel 4
    - ...
    - end_scan_req, channel 6
- finish_scan_req
- ...
    - end_scan_req, channel 165
- finish_scan_req

Upstream currently never calls wcn36xx_smd_end_scan, and in some cases[1]
still sends finish_scan_req twice in a row or before init_scan_req. A
typical connected scan looks like this:

- init_scan_req
    - start_scan_req, channel 1
- finish_scan_req
- init_scan_req
    - start_scan_req, channel 2
- ...
    - start_scan_req, channel 165
- finish_scan_req
- finish_scan_req

This patch cleans up scanning so that init/finish and start/end are always
paired together and correctly nested.

- init_scan_req
    - start_scan_req, channel 1
    - end_scan_req, channel 1
- finish_scan_req
- init_scan_req
    - start_scan_req, channel 2
    - end_scan_req, channel 2
- ...
    - start_scan_req, channel 165
    - end_scan_req, channel 165
- finish_scan_req

Note that upstream will not do batching of 3 active-probe scans before
returning to the operating channel, and this patch does not change that.
To match downstream in this aspect, adjust IEEE80211_PROBE_DELAY and/or
the 125ms max off-channel time in ieee80211_scan_state_decision.

[1]: commit d195d7aac09b ("wcn36xx: Ensure finish scan is not requested
before start scan") addressed one case of finish_scan_req being sent
without a preceding init_scan_req (the case of the operating channel
coinciding with the first scan channel); two other cases are:
1) if SW scan is started and aborted immediately, without scanning any
   channels, we send a finish_scan_req without ever sending init_scan_req,
   and
2) as SW scan logic always returns us to the operating channel before
   calling wcn36xx_sw_scan_complete, finish_scan_req is always sent twice
   at the end of a SW scan

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Benjamin Li <benl@squareup.com>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027170306.555535-4-benl@squareup.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/main.c    | 34 +++++++++++++++++-----
 drivers/net/wireless/ath/wcn36xx/smd.c     |  4 +++
 drivers/net/wireless/ath/wcn36xx/wcn36xx.h |  1 +
 3 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 629ddfd74da1a..9aaf6f7473333 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -397,6 +397,7 @@ static void wcn36xx_change_opchannel(struct wcn36xx *wcn, int ch)
 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct wcn36xx *wcn = hw->priv;
+	int ret;
 
 	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
 
@@ -412,17 +413,31 @@ static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
 			 * want to receive/transmit regular data packets, then
 			 * simply stop the scan session and exit PS mode.
 			 */
-			wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN,
-						wcn->sw_scan_vif);
-			wcn->sw_scan_channel = 0;
+			if (wcn->sw_scan_channel)
+				wcn36xx_smd_end_scan(wcn, wcn->sw_scan_channel);
+			if (wcn->sw_scan_init) {
+				wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN,
+							wcn->sw_scan_vif);
+			}
 		} else if (wcn->sw_scan) {
 			/* A scan is ongoing, do not change the operating
 			 * channel, but start a scan session on the channel.
 			 */
-			wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN,
-					      wcn->sw_scan_vif);
+			if (wcn->sw_scan_channel)
+				wcn36xx_smd_end_scan(wcn, wcn->sw_scan_channel);
+			if (!wcn->sw_scan_init) {
+				/* This can fail if we are unable to notify the
+				 * operating channel.
+				 */
+				ret = wcn36xx_smd_init_scan(wcn,
+							    HAL_SYS_MODE_SCAN,
+							    wcn->sw_scan_vif);
+				if (ret) {
+					mutex_unlock(&wcn->conf_mutex);
+					return -EIO;
+				}
+			}
 			wcn36xx_smd_start_scan(wcn, ch);
-			wcn->sw_scan_channel = ch;
 		} else {
 			wcn36xx_change_opchannel(wcn, ch);
 		}
@@ -709,7 +724,12 @@ static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
 	struct wcn36xx *wcn = hw->priv;
 
 	/* ensure that any scan session is finished */
-	wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN, wcn->sw_scan_vif);
+	if (wcn->sw_scan_channel)
+		wcn36xx_smd_end_scan(wcn, wcn->sw_scan_channel);
+	if (wcn->sw_scan_init) {
+		wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN,
+					wcn->sw_scan_vif);
+	}
 	wcn->sw_scan = false;
 	wcn->sw_scan_opchannel = 0;
 }
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 3793907ace92e..ad312e17f7a3c 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -730,6 +730,7 @@ int wcn36xx_smd_init_scan(struct wcn36xx *wcn, enum wcn36xx_hal_sys_mode mode,
 		wcn36xx_err("hal_init_scan response failed err=%d\n", ret);
 		goto out;
 	}
+	wcn->sw_scan_init = true;
 out:
 	mutex_unlock(&wcn->hal_mutex);
 	return ret;
@@ -760,6 +761,7 @@ int wcn36xx_smd_start_scan(struct wcn36xx *wcn, u8 scan_channel)
 		wcn36xx_err("hal_start_scan response failed err=%d\n", ret);
 		goto out;
 	}
+	wcn->sw_scan_channel = scan_channel;
 out:
 	mutex_unlock(&wcn->hal_mutex);
 	return ret;
@@ -790,6 +792,7 @@ int wcn36xx_smd_end_scan(struct wcn36xx *wcn, u8 scan_channel)
 		wcn36xx_err("hal_end_scan response failed err=%d\n", ret);
 		goto out;
 	}
+	wcn->sw_scan_channel = 0;
 out:
 	mutex_unlock(&wcn->hal_mutex);
 	return ret;
@@ -831,6 +834,7 @@ int wcn36xx_smd_finish_scan(struct wcn36xx *wcn,
 		wcn36xx_err("hal_finish_scan response failed err=%d\n", ret);
 		goto out;
 	}
+	wcn->sw_scan_init = false;
 out:
 	mutex_unlock(&wcn->hal_mutex);
 	return ret;
diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
index 9b4dee2fc6483..5c40d0bdee245 100644
--- a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -231,6 +231,7 @@ struct wcn36xx {
 	struct cfg80211_scan_request *scan_req;
 	bool			sw_scan;
 	u8			sw_scan_opchannel;
+	bool			sw_scan_init;
 	u8			sw_scan_channel;
 	struct ieee80211_vif	*sw_scan_vif;
 	struct mutex		scan_lock;
-- 
GitLab


From 38a7842889f51fcaf5a948212542d57aaa29acdc Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Thu, 28 Oct 2021 00:25:29 +0100
Subject: [PATCH 2925/4878] wcn36xx: Indicate beacon not connection loss on
 MISSED_BEACON_IND

[ Upstream commit 588b45c88ae130fe373a8c50edaf54735c3f4fe3 ]

Firmware can trigger a missed beacon indication, this is not the same as a
lost signal.

Flag to Linux the missed beacon and let the WiFi stack decide for itself if
the link is up or down by sending its own probe to determine this.

We should only be signalling the link is lost when the firmware indicates

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211027232529.657764-1-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index ad312e17f7a3c..7f00cb6f5e16b 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -2607,7 +2607,7 @@ static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
 			wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
 				    tmp->bss_index);
 			vif = wcn36xx_priv_to_vif(tmp);
-			ieee80211_connection_loss(vif);
+			ieee80211_beacon_loss(vif);
 		}
 		return 0;
 	}
@@ -2622,7 +2622,7 @@ static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
 			wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
 				    rsp->bss_index);
 			vif = wcn36xx_priv_to_vif(tmp);
-			ieee80211_connection_loss(vif);
+			ieee80211_beacon_loss(vif);
 			return 0;
 		}
 	}
-- 
GitLab


From 1850195a852d3d56e7d17fcc30973b8a88e8df46 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Fri, 5 Nov 2021 12:21:50 +0000
Subject: [PATCH 2926/4878] wcn36xx: Fix DMA channel enable/disable cycle

[ Upstream commit 89dcb1da611d9b3ff0728502d58372fdaae9ebff ]

Right now we have a broken sequence where we enable DMA channel interrupts
which can be left enabled and never disabled if we hit an error path.

Worse still when we unload the driver, the DMA channel interrupt bits are
left intact. About the only saving grace here is that we do remember to
disable the wcnss interrupt when unload the driver.

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211105122152.1580542-2-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/dxe.c | 38 ++++++++++++++++++--------
 1 file changed, 27 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index cf4eb0fb28151..0909d0c423cbb 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -272,6 +272,21 @@ static int wcn36xx_dxe_enable_ch_int(struct wcn36xx *wcn, u16 wcn_ch)
 	return 0;
 }
 
+static void wcn36xx_dxe_disable_ch_int(struct wcn36xx *wcn, u16 wcn_ch)
+{
+	int reg_data = 0;
+
+	wcn36xx_dxe_read_register(wcn,
+				  WCN36XX_DXE_INT_MASK_REG,
+				  &reg_data);
+
+	reg_data &= ~wcn_ch;
+
+	wcn36xx_dxe_write_register(wcn,
+				   WCN36XX_DXE_INT_MASK_REG,
+				   (int)reg_data);
+}
+
 static int wcn36xx_dxe_fill_skb(struct device *dev,
 				struct wcn36xx_dxe_ctl *ctl,
 				gfp_t gfp)
@@ -869,7 +884,6 @@ int wcn36xx_dxe_init(struct wcn36xx *wcn)
 		WCN36XX_DXE_WQ_TX_L);
 
 	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_REG_CH_EN, &reg_data);
-	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_L);
 
 	/***************************************/
 	/* Init descriptors for TX HIGH channel */
@@ -893,9 +907,6 @@ int wcn36xx_dxe_init(struct wcn36xx *wcn)
 
 	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_REG_CH_EN, &reg_data);
 
-	/* Enable channel interrupts */
-	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_H);
-
 	/***************************************/
 	/* Init descriptors for RX LOW channel */
 	/***************************************/
@@ -905,7 +916,6 @@ int wcn36xx_dxe_init(struct wcn36xx *wcn)
 		goto out_err_rxl_ch;
 	}
 
-
 	/* For RX we need to preallocated buffers */
 	wcn36xx_dxe_ch_alloc_skb(wcn, &wcn->dxe_rx_l_ch);
 
@@ -928,9 +938,6 @@ int wcn36xx_dxe_init(struct wcn36xx *wcn)
 		WCN36XX_DXE_REG_CTL_RX_L,
 		WCN36XX_DXE_CH_DEFAULT_CTL_RX_L);
 
-	/* Enable channel interrupts */
-	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_L);
-
 	/***************************************/
 	/* Init descriptors for RX HIGH channel */
 	/***************************************/
@@ -962,15 +969,18 @@ int wcn36xx_dxe_init(struct wcn36xx *wcn)
 		WCN36XX_DXE_REG_CTL_RX_H,
 		WCN36XX_DXE_CH_DEFAULT_CTL_RX_H);
 
-	/* Enable channel interrupts */
-	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_H);
-
 	ret = wcn36xx_dxe_request_irqs(wcn);
 	if (ret < 0)
 		goto out_err_irq;
 
 	timer_setup(&wcn->tx_ack_timer, wcn36xx_dxe_tx_timer, 0);
 
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_L);
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_H);
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_L);
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_H);
+
 	return 0;
 
 out_err_irq:
@@ -987,6 +997,12 @@ out_err_txh_ch:
 
 void wcn36xx_dxe_deinit(struct wcn36xx *wcn)
 {
+	/* Disable channel interrupts */
+	wcn36xx_dxe_disable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_H);
+	wcn36xx_dxe_disable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_L);
+	wcn36xx_dxe_disable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_H);
+	wcn36xx_dxe_disable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_L);
+
 	free_irq(wcn->tx_irq, wcn);
 	free_irq(wcn->rx_irq, wcn);
 	del_timer(&wcn->tx_ack_timer);
-- 
GitLab


From 0d53c47f6ab5164d8b020063c16b5a7c6e4aef77 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Fri, 5 Nov 2021 12:21:51 +0000
Subject: [PATCH 2927/4878] wcn36xx: Release DMA channel descriptor allocations

[ Upstream commit 3652096e5263ad67604b0323f71d133485f410e5 ]

When unloading the driver we are not releasing the DMA descriptors which we
previously allocated.

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211105122152.1580542-3-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/dxe.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index 0909d0c423cbb..b117d8a0f446f 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -1014,4 +1014,9 @@ void wcn36xx_dxe_deinit(struct wcn36xx *wcn)
 
 	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_l_ch);
 	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_h_ch);
+
+	wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_tx_l_ch);
+	wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_tx_h_ch);
+	wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_rx_l_ch);
+	wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_rx_h_ch);
 }
-- 
GitLab


From 92fea7bd5af3b163316c40672cd31db143536774 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Fri, 5 Nov 2021 12:21:52 +0000
Subject: [PATCH 2928/4878] wcn36xx: Put DXE block into reset before freeing
 memory

[ Upstream commit ed04ea76e69e7194f7489cebe23a32a68f39218d ]

When deiniting the DXE hardware we should reset the block to ensure there
is no spurious DMA write transaction from the downstream WCNSS to upstream
MSM at a skbuff address we will have released.

Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211105122152.1580542-4-bryan.odonoghue@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/dxe.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index b117d8a0f446f..6c62ffc799a2b 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -997,6 +997,8 @@ out_err_txh_ch:
 
 void wcn36xx_dxe_deinit(struct wcn36xx *wcn)
 {
+	int reg_data = 0;
+
 	/* Disable channel interrupts */
 	wcn36xx_dxe_disable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_H);
 	wcn36xx_dxe_disable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_L);
@@ -1012,6 +1014,10 @@ void wcn36xx_dxe_deinit(struct wcn36xx *wcn)
 		wcn->tx_ack_skb = NULL;
 	}
 
+	/* Put the DXE block into reset before freeing memory */
+	reg_data = WCN36XX_DXE_REG_RESET;
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_REG_CSR_RESET, reg_data);
+
 	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_l_ch);
 	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_h_ch);
 
-- 
GitLab


From 22406ed4e389b261cbe4353f3f6dfcecadd37e06 Mon Sep 17 00:00:00 2001
From: Benjamin Li <benl@squareup.com>
Date: Wed, 3 Nov 2021 18:05:47 -0700
Subject: [PATCH 2929/4878] wcn36xx: populate band before determining rate on
 RX

[ Upstream commit c9c5608fafe4dae975c9644c7d14c51ad3b0ed73 ]

status.band is used in determination of status.rate -- for 5GHz on legacy
rates there is a linear shift between the BD descriptor's rate field and
the wcn36xx driver's rate table (wcn_5ghz_rates).

We have a special clause to populate status.band for hardware scan offload
frames. However, this block occurs after status.rate is already populated.
Correctly handle this dependency by moving the band block before the rate
block.

This patch addresses kernel warnings & missing scan results for 5GHz APs
that send their beacons/probe responses at the higher four legacy rates
(24-54 Mbps), when using hardware scan offload:

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at net/mac80211/rx.c:4532 ieee80211_rx_napi+0x744/0x8d8
  Modules linked in: wcn36xx [...]
  CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W         4.19.107-g73909fa #1
  Hardware name: Square, Inc. T2 (all variants) (DT)
  Call trace:
  dump_backtrace+0x0/0x148
  show_stack+0x14/0x1c
  dump_stack+0xb8/0xf0
  __warn+0x2ac/0x2d8
  warn_slowpath_null+0x44/0x54
  ieee80211_rx_napi+0x744/0x8d8
  ieee80211_tasklet_handler+0xa4/0xe0
  tasklet_action_common+0xe0/0x118
  tasklet_action+0x20/0x28
  __do_softirq+0x108/0x1ec
  irq_exit+0xd4/0xd8
  __handle_domain_irq+0x84/0xbc
  gic_handle_irq+0x4c/0xb8
  el1_irq+0xe8/0x190
  lpm_cpuidle_enter+0x220/0x260
  cpuidle_enter_state+0x114/0x1c0
  cpuidle_enter+0x34/0x48
  do_idle+0x150/0x268
  cpu_startup_entry+0x20/0x24
  rest_init+0xd4/0xe0
  start_kernel+0x398/0x430
  ---[ end trace ae28cb759352b403 ]---

Fixes: 8a27ca394782 ("wcn36xx: Correct band/freq reporting on RX")
Signed-off-by: Benjamin Li <benl@squareup.com>
Tested-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211104010548.1107405-2-benl@squareup.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 37 +++++++++++++------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index bbd7194c82e27..f76de106570d2 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -259,8 +259,6 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 	fc = __le16_to_cpu(hdr->frame_control);
 	sn = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl));
 
-	status.freq = WCN36XX_CENTER_FREQ(wcn);
-	status.band = WCN36XX_BAND(wcn);
 	status.mactime = 10;
 	status.signal = -get_rssi0(bd);
 	status.antenna = 1;
@@ -272,6 +270,25 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 
 	wcn36xx_dbg(WCN36XX_DBG_RX, "status.flags=%x\n", status.flag);
 
+	if (bd->scan_learn) {
+		/* If packet originate from hardware scanning, extract the
+		 * band/channel from bd descriptor.
+		 */
+		u8 hwch = (bd->reserved0 << 4) + bd->rx_ch;
+
+		if (bd->rf_band != 1 && hwch <= sizeof(ab_rx_ch_map) && hwch >= 1) {
+			status.band = NL80211_BAND_5GHZ;
+			status.freq = ieee80211_channel_to_frequency(ab_rx_ch_map[hwch - 1],
+								     status.band);
+		} else {
+			status.band = NL80211_BAND_2GHZ;
+			status.freq = ieee80211_channel_to_frequency(hwch, status.band);
+		}
+	} else {
+		status.band = WCN36XX_BAND(wcn);
+		status.freq = WCN36XX_CENTER_FREQ(wcn);
+	}
+
 	if (bd->rate_id < ARRAY_SIZE(wcn36xx_rate_table)) {
 		rate = &wcn36xx_rate_table[bd->rate_id];
 		status.encoding = rate->encoding;
@@ -298,22 +315,6 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 	    ieee80211_is_probe_resp(hdr->frame_control))
 		status.boottime_ns = ktime_get_boottime_ns();
 
-	if (bd->scan_learn) {
-		/* If packet originates from hardware scanning, extract the
-		 * band/channel from bd descriptor.
-		 */
-		u8 hwch = (bd->reserved0 << 4) + bd->rx_ch;
-
-		if (bd->rf_band != 1 && hwch <= sizeof(ab_rx_ch_map) && hwch >= 1) {
-			status.band = NL80211_BAND_5GHZ;
-			status.freq = ieee80211_channel_to_frequency(ab_rx_ch_map[hwch - 1],
-								     status.band);
-		} else {
-			status.band = NL80211_BAND_2GHZ;
-			status.freq = ieee80211_channel_to_frequency(hwch, status.band);
-		}
-	}
-
 	memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
 
 	if (ieee80211_is_beacon(hdr->frame_control)) {
-- 
GitLab


From 2fe056d9791a2eba23d9a9a31842483bcc7f7bc1 Mon Sep 17 00:00:00 2001
From: Benjamin Li <benl@squareup.com>
Date: Wed, 3 Nov 2021 18:05:48 -0700
Subject: [PATCH 2930/4878] wcn36xx: fix RX BD rate mapping for 5GHz legacy
 rates

[ Upstream commit cfdf6b19e750f7de8ae71a26932f63b52e3bf74c ]

The linear mapping between the BD rate field and the driver's 5GHz
legacy rates table (wcn_5ghz_rates) does not only apply for the latter
four rates -- it applies to all eight rates.

Fixes: 6ea131acea98 ("wcn36xx: Fix warning due to bad rate_idx")
Signed-off-by: Benjamin Li <benl@squareup.com>
Tested-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211104010548.1107405-3-benl@squareup.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index f76de106570d2..f33e7228a1010 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -237,7 +237,6 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 	const struct wcn36xx_rate *rate;
 	struct ieee80211_hdr *hdr;
 	struct wcn36xx_rx_bd *bd;
-	struct ieee80211_supported_band *sband;
 	u16 fc, sn;
 
 	/*
@@ -295,12 +294,11 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 		status.enc_flags = rate->encoding_flags;
 		status.bw = rate->bw;
 		status.rate_idx = rate->mcs_or_legacy_index;
-		sband = wcn->hw->wiphy->bands[status.band];
 		status.nss = 1;
 
 		if (status.band == NL80211_BAND_5GHZ &&
 		    status.encoding == RX_ENC_LEGACY &&
-		    status.rate_idx >= sband->n_bitrates) {
+		    status.rate_idx >= 4) {
 			/* no dsss rates in 5Ghz rates table */
 			status.rate_idx -= 4;
 		}
-- 
GitLab


From 9bfed11dcf592220593cd70407f2693b37ee6059 Mon Sep 17 00:00:00 2001
From: Rameshkumar Sundaram <ramess@codeaurora.org>
Date: Wed, 10 Nov 2021 17:10:48 +0200
Subject: [PATCH 2931/4878] ath11k: Send PPDU_STATS_CFG with proper pdev mask
 to firmware

[ Upstream commit 16a2c3d5406f95ef6139de52669c60a39443f5f7 ]

HTT_PPDU_STATS_CFG_PDEV_ID bit mask for target FW PPDU stats request message
was set as bit 8 to 15. Bit 8 is reserved for soc stats and pdev id starts from
bit 9. Hence change the bitmask as bit 9 to 15 and fill the proper pdev id in
the request message.

In commit 701e48a43e15 ("ath11k: add packet log support for QCA6390"), both
HTT_PPDU_STATS_CFG_PDEV_ID and pdev_mask were changed, but this pdev_mask
calculation is not valid for platforms which has multiple pdevs with 1 rxdma
per pdev, as this is writing same value(i.e. 2) for all pdevs.  Hence fixed it
to consider pdev_idx as well, to make it compatible for both single and multi
pd cases.

Tested on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01092-QCAHKSWPL_SILICONZ-1
Tested on: IPQ6018 hw1.0 WLAN.HK.2.5.0.1-01067-QCAHKSWPL_SILICONZ-1

Fixes: 701e48a43e15 ("ath11k: add packet log support for QCA6390")

Co-developed-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
Signed-off-by: Rameshkumar Sundaram <ramess@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210721212029.142388-10-jouni@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/dp.h    | 3 ++-
 drivers/net/wireless/ath/ath11k/dp_tx.c | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp.h b/drivers/net/wireless/ath/ath11k/dp.h
index ee8db812589b3..c4972233149f4 100644
--- a/drivers/net/wireless/ath/ath11k/dp.h
+++ b/drivers/net/wireless/ath/ath11k/dp.h
@@ -514,7 +514,8 @@ struct htt_ppdu_stats_cfg_cmd {
 } __packed;
 
 #define HTT_PPDU_STATS_CFG_MSG_TYPE		GENMASK(7, 0)
-#define HTT_PPDU_STATS_CFG_PDEV_ID		GENMASK(15, 8)
+#define HTT_PPDU_STATS_CFG_SOC_STATS		BIT(8)
+#define HTT_PPDU_STATS_CFG_PDEV_ID		GENMASK(15, 9)
 #define HTT_PPDU_STATS_CFG_TLV_TYPE_BITMASK	GENMASK(31, 16)
 
 enum htt_ppdu_stats_tag_type {
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 21dfd08d3debb..092eee735da29 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -894,7 +894,7 @@ int ath11k_dp_tx_htt_h2t_ppdu_stats_req(struct ath11k *ar, u32 mask)
 		cmd->msg = FIELD_PREP(HTT_PPDU_STATS_CFG_MSG_TYPE,
 				      HTT_H2T_MSG_TYPE_PPDU_STATS_CFG);
 
-		pdev_mask = 1 << (i + 1);
+		pdev_mask = 1 << (ar->pdev_idx + i);
 		cmd->msg |= FIELD_PREP(HTT_PPDU_STATS_CFG_PDEV_ID, pdev_mask);
 		cmd->msg |= FIELD_PREP(HTT_PPDU_STATS_CFG_TLV_TYPE_BITMASK, mask);
 
-- 
GitLab


From 90807ab437e8222968f9455f7d5d67b98c0e264e Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Mon, 25 Oct 2021 21:56:28 +0100
Subject: [PATCH 2932/4878] mtd: hyperbus: rpc-if: Check return value of
 rpcif_sw_init()

[ Upstream commit 981387ed06b96908223a607f5fba6efa42728fc2 ]

rpcif_sw_init() can fail so make sure we check the return value
of it and on error exit rpcif_hb_probe() callback with error code.

Fixes: 5de15b610f78 ("mtd: hyperbus: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20211025205631.21151-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/hyperbus/rpc-if.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/hyperbus/rpc-if.c b/drivers/mtd/hyperbus/rpc-if.c
index ecb050ba95cdf..367b0d72bf622 100644
--- a/drivers/mtd/hyperbus/rpc-if.c
+++ b/drivers/mtd/hyperbus/rpc-if.c
@@ -124,7 +124,9 @@ static int rpcif_hb_probe(struct platform_device *pdev)
 	if (!hyperbus)
 		return -ENOMEM;
 
-	rpcif_sw_init(&hyperbus->rpc, pdev->dev.parent);
+	error = rpcif_sw_init(&hyperbus->rpc, pdev->dev.parent);
+	if (error)
+		return error;
 
 	platform_set_drvdata(pdev, hyperbus);
 
-- 
GitLab


From e1da9301cf54f51b7d78faeb99495b285fe5decd Mon Sep 17 00:00:00 2001
From: Dillon Min <dillon.minfei@gmail.com>
Date: Tue, 19 Oct 2021 09:43:19 +0100
Subject: [PATCH 2933/4878] media: videobuf2: Fix the size printk format

[ Upstream commit c9ee220d76775e42f35d634479c978d9350077d3 ]

Since the type of parameter size is unsigned long,
it should printk by %lu, instead of %ld, fix it.

Fixes: 7952be9b6ece ("media: drivers/media/common/videobuf2: rename from videobuf")
Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/common/videobuf2/videobuf2-dma-contig.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
index 2f3a5996d3fc9..fe626109ef4db 100644
--- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
+++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
@@ -150,7 +150,7 @@ static void *vb2_dc_alloc(struct device *dev, unsigned long attrs,
 	buf->cookie = dma_alloc_attrs(dev, size, &buf->dma_addr,
 					GFP_KERNEL | gfp_flags, buf->attrs);
 	if (!buf->cookie) {
-		dev_err(dev, "dma_alloc_coherent of size %ld failed\n", size);
+		dev_err(dev, "dma_alloc_coherent of size %lu failed\n", size);
 		kfree(buf);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -196,9 +196,9 @@ static int vb2_dc_mmap(void *buf_priv, struct vm_area_struct *vma)
 
 	vma->vm_ops->open(vma);
 
-	pr_debug("%s: mapped dma addr 0x%08lx at 0x%08lx, size %ld\n",
-		__func__, (unsigned long)buf->dma_addr, vma->vm_start,
-		buf->size);
+	pr_debug("%s: mapped dma addr 0x%08lx at 0x%08lx, size %lu\n",
+		 __func__, (unsigned long)buf->dma_addr, vma->vm_start,
+		 buf->size);
 
 	return 0;
 }
-- 
GitLab


From 1daacf9bb69a69c044037814c544fc504acad90c Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:19:41 +0900
Subject: [PATCH 2934/4878] media: atomisp: add missing media_device_cleanup()
 in atomisp_unregister_entities()

[ Upstream commit ce3015b7212e96db426d0c36f80fd159c91155d1 ]

After the commit 9832e155f1ed ("[media] media-device: split media
initialization and registration"), calling media_device_cleanup()
is needed it seems. However, currently it is missing for the module
unload path.

Note that for the probe failure path, it is already added in
atomisp_register_entities().

This patch adds the missing call of media_device_cleanup() in
atomisp_unregister_entities().

Fixes: a49d25364dfb ("staging/atomisp: Add support for the Intel IPU v2")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/atomisp_v4l2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index fa1bd99cd6f17..d35506f643609 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -1182,6 +1182,7 @@ static void atomisp_unregister_entities(struct atomisp_device *isp)
 
 	v4l2_device_unregister(&isp->v4l2_dev);
 	media_device_unregister(&isp->media_dev);
+	media_device_cleanup(&isp->media_dev);
 }
 
 static int atomisp_register_entities(struct atomisp_device *isp)
-- 
GitLab


From fb370f6dc7d5dcc9a01456ae11be8811cbd47675 Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:19:42 +0900
Subject: [PATCH 2935/4878] media: atomisp: fix punit_ddr_dvfs_enable()
 argument for mrfld_power up case

[ Upstream commit 5bfbf65fcca7325e4d89d289b3c286e11220e386 ]

When comparing with intel-aero atomisp [1], it looks like
punit_ddr_dvfs_enable() should take `false` as an argument on mrfld_power
up case.

Code from the intel-aero kernel [1]:

        int atomisp_mrfld_power_down(struct atomisp_device *isp)
        {
        [...]
		/*WA:Enable DVFS*/
		if (IS_CHT)
			punit_ddr_dvfs_enable(true);

        int atomisp_mrfld_power_up(struct atomisp_device *isp)
        {
        [...]
		/*WA for PUNIT, if DVFS enabled, ISP timeout observed*/
		if (IS_CHT)
			punit_ddr_dvfs_enable(false);

This patch fixes the inverted argument as per the intel-aero code, as
well as its comment. While here, fix space issues for comments in
atomisp_mrfld_power().

Note that it does not seem to be possible to unify the up/down cases for
punit_ddr_dvfs_enable(), i.e., we can't do something like the following:

        if (IS_CHT)
		punit_ddr_dvfs_enable(!enable);

because according to the intel-aero code [1], the DVFS is disabled
before "writing 0x0 to ISPSSPM0 bit[1:0]" and the DVFS is enabled after
"writing 0x3 to ISPSSPM0 bit[1:0]".

[1] https://github.com/intel-aero/linux-kernel/blob/a1b673258feb915268377275130c5c5df0eafc82/drivers/media/pci/atomisp/atomisp_driver/atomisp_v4l2.c#L431-L514

Fixes: 0f441fd70b1e ("media: atomisp: simplify the power down/up code")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/atomisp_v4l2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index d35506f643609..687e94e8b6ce5 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -711,15 +711,15 @@ static int atomisp_mrfld_power(struct atomisp_device *isp, bool enable)
 
 	dev_dbg(isp->dev, "IUNIT power-%s.\n", enable ? "on" : "off");
 
-	/*WA:Enable DVFS*/
+	/* WA for P-Unit, if DVFS enabled, ISP timeout observed */
 	if (IS_CHT && enable)
-		punit_ddr_dvfs_enable(true);
+		punit_ddr_dvfs_enable(false);
 
 	/*
 	 * FIXME:WA for ECS28A, with this sleep, CTS
 	 * android.hardware.camera2.cts.CameraDeviceTest#testCameraDeviceAbort
 	 * PASS, no impact on other platforms
-	*/
+	 */
 	if (IS_BYT && enable)
 		msleep(10);
 
@@ -727,7 +727,7 @@ static int atomisp_mrfld_power(struct atomisp_device *isp, bool enable)
 	iosf_mbi_modify(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSPM0,
 			val, MRFLD_ISPSSPM0_ISPSSC_MASK);
 
-	/*WA:Enable DVFS*/
+	/* WA:Enable DVFS */
 	if (IS_CHT && !enable)
 		punit_ddr_dvfs_enable(true);
 
-- 
GitLab


From 08e43223fb4ec05baec6d07fb55f7e979bb289c9 Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:19:43 +0900
Subject: [PATCH 2936/4878] media: atomisp: fix inverted logic in
 buffers_needed()

[ Upstream commit e1921cd14640f0f4d1fad5eb8e448c58a536415d ]

When config.mode is IA_CSS_INPUT_MODE_BUFFERED_SENSOR, it rather needs
buffers. Fix it by inverting the return value.

Fixes: 3c0538fbad9f ("media: atomisp: get rid of most checks for ISP2401 version")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/sh_css_mipi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.c b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
index d5ae7f0b5864b..e18c0cfb4ce3a 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
@@ -389,17 +389,17 @@ static bool buffers_needed(struct ia_css_pipe *pipe)
 {
 	if (!IS_ISP2401) {
 		if (pipe->stream->config.mode == IA_CSS_INPUT_MODE_BUFFERED_SENSOR)
-			return false;
-		else
 			return true;
+		else
+			return false;
 	}
 
 	if (pipe->stream->config.mode == IA_CSS_INPUT_MODE_BUFFERED_SENSOR ||
 	    pipe->stream->config.mode == IA_CSS_INPUT_MODE_TPG ||
 	    pipe->stream->config.mode == IA_CSS_INPUT_MODE_PRBS)
-		return false;
+		return true;
 
-	return true;
+	return false;
 }
 
 int
-- 
GitLab


From 3cb3e66f583c64a11ac507b40a9a312fbc45652b Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:19:44 +0900
Subject: [PATCH 2937/4878] media: atomisp: do not use err var when checking
 port validity for ISP2400

[ Upstream commit 9f6b4fa2d2dfbff4b8a57eeb39b1128a6094ee20 ]

Currently, the `port >= N_CSI_PORTS || err` checks for ISP2400 are always
evaluated as true because the err variable is set to `-EINVAL` on
declaration but the variable is never used until the evaluation.

Looking at the diff of commit 3c0538fbad9f ("media: atomisp: get rid of
most checks for ISP2401 version"), the `port >= N_CSI_PORTS` check is
for ISP2400 and the err variable check is for ISP2401. Fix this issue
by adding ISP version test there accordingly.

Fixes: 3c0538fbad9f ("media: atomisp: get rid of most checks for ISP2401 version")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/sh_css_mipi.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.c b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
index e18c0cfb4ce3a..34b71c1b7c1ec 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
@@ -446,7 +446,8 @@ allocate_mipi_frames(struct ia_css_pipe *pipe,
 
 	assert(port < N_CSI_PORTS);
 
-	if (port >= N_CSI_PORTS || err) {
+	if ((!IS_ISP2401 && port >= N_CSI_PORTS) ||
+	    (IS_ISP2401 && err)) {
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 				    "allocate_mipi_frames(%p) exit: error: port is not correct (port=%d).\n",
 				    pipe, port);
@@ -578,7 +579,8 @@ free_mipi_frames(struct ia_css_pipe *pipe) {
 
 		assert(port < N_CSI_PORTS);
 
-		if (port >= N_CSI_PORTS || err) {
+		if ((!IS_ISP2401 && port >= N_CSI_PORTS) ||
+		    (IS_ISP2401 && err)) {
 			ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 					    "free_mipi_frames(%p, %d) exit: error: pipe port is not correct.\n",
 					    pipe, port);
@@ -690,7 +692,8 @@ send_mipi_frames(struct ia_css_pipe *pipe) {
 
 	assert(port < N_CSI_PORTS);
 
-	if (port >= N_CSI_PORTS || err) {
+	if ((!IS_ISP2401 && port >= N_CSI_PORTS) ||
+	    (IS_ISP2401 && err)) {
 		IA_CSS_ERROR("send_mipi_frames(%p) exit: invalid port specified (port=%d).\n",
 			     pipe, port);
 		return err;
-- 
GitLab


From 0bf5e8af6eb6cff903cbe612692cee7979126ab7 Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:19:45 +0900
Subject: [PATCH 2938/4878] media: atomisp: fix inverted error check for
 ia_css_mipi_is_source_port_valid()

[ Upstream commit d21ce8c2f7bf6d737b60c09f86db141b9e8e47f0 ]

The function ia_css_mipi_is_source_port_valid() returns true if the port
is valid. So, we can't use the existing err variable as is.

To fix this issue while reusing that variable, invert the return value
when assigning it to the variable.

Fixes: 3c0538fbad9f ("media: atomisp: get rid of most checks for ISP2401 version")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../staging/media/atomisp/pci/sh_css_mipi.c   | 24 ++++++++++++-------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.c b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
index 34b71c1b7c1ec..651eda0469b23 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
@@ -439,10 +439,12 @@ allocate_mipi_frames(struct ia_css_pipe *pipe,
 		return 0; /* AM TODO: Check  */
 	}
 
-	if (!IS_ISP2401)
+	if (!IS_ISP2401) {
 		port = (unsigned int)pipe->stream->config.source.port.port;
-	else
-		err = ia_css_mipi_is_source_port_valid(pipe, &port);
+	} else {
+		/* Returns true if port is valid. So, invert it */
+		err = !ia_css_mipi_is_source_port_valid(pipe, &port);
+	}
 
 	assert(port < N_CSI_PORTS);
 
@@ -572,10 +574,12 @@ free_mipi_frames(struct ia_css_pipe *pipe) {
 			return err;
 		}
 
-		if (!IS_ISP2401)
+		if (!IS_ISP2401) {
 			port = (unsigned int)pipe->stream->config.source.port.port;
-		else
-			err = ia_css_mipi_is_source_port_valid(pipe, &port);
+		} else {
+			/* Returns true if port is valid. So, invert it */
+			err = !ia_css_mipi_is_source_port_valid(pipe, &port);
+		}
 
 		assert(port < N_CSI_PORTS);
 
@@ -685,10 +689,12 @@ send_mipi_frames(struct ia_css_pipe *pipe) {
 		/* TODO: AM: maybe this should be returning an error. */
 	}
 
-	if (!IS_ISP2401)
+	if (!IS_ISP2401) {
 		port = (unsigned int)pipe->stream->config.source.port.port;
-	else
-		err = ia_css_mipi_is_source_port_valid(pipe, &port);
+	} else {
+		/* Returns true if port is valid. So, invert it */
+		err = !ia_css_mipi_is_source_port_valid(pipe, &port);
+	}
 
 	assert(port < N_CSI_PORTS);
 
-- 
GitLab


From 22b0b68f7d9f1dc9acdb96f2d3bb43e8184f6f3a Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:19:47 +0900
Subject: [PATCH 2939/4878] media: atomisp: fix ifdefs in sh_css.c

[ Upstream commit 5a1b2725558f8a3b4cbf0504f53cffae8e163034 ]

 ## `if (pipe->stream->config.mode == IA_CSS_INPUT_MODE_TPG) {` case

The intel-aero atomisp has `#if defined(IS_ISP_2400_SYSTEM)` [1]. It is
to be defined in the following two places [2]:

  - css/hive_isp_css_common/system_global.h
  - css/css_2401_csi2p_system/system_global.h

and the former file is to be included on ISP2400 devices, too. So, it
is to be defined for both ISP2400 and ISP2401 devices.

Because the upstreamed atomisp driver now supports only ISP2400 and
ISP2401, just remove the ISP version test again. This matches the other
upstream commits like 3c0538fbad9f ("media: atomisp: get rid of most
checks for ISP2401 version").

While here, moved the comment for define GP_ISEL_TPG_MODE to the
appropriate place.

[1] https://github.com/intel-aero/linux-kernel/blob/a1b673258feb915268377275130c5c5df0eafc82/drivers/media/pci/atomisp/css/sh_css.c#L552-L558
[2] https://github.com/intel-aero/linux-kernel/search?q=IS_ISP_2400_SYSTEM

  ## `isys_stream_descr->polling_mode` case

This does not exist on the intel-aero atomisp. This is because it is
based on css version irci_stable_candrpv_0415_20150521_0458.

On the other hand, the upstreamed atomisp is based on the following css
version depending on the ISP version using ifdefs:

  - ISP2400: irci_stable_candrpv_0415_20150521_0458
  - ISP2401: irci_master_20150911_0724

The `isys_stream_descr->polling_mode` usage was added on updating css
version to irci_master_20150701_0213 [3].

So, it is not a ISP version specific thing, but css version specific
thing. Because the upstreamed atomisp driver uses irci_master_20150911_0724
for ISP2401, re-add the ISP version check for now.

I say "for now" because ISP2401 should eventually use the same css
version with ISP2400 (i.e., irci_stable_candrpv_0415_20150521_0458)

[3] https://raw.githubusercontent.com/intel/ProductionKernelQuilts/cht-m1stable-2016_ww31/uefi/cht-m1stable/patches/cam-0439-atomisp2-css2401-and-2401_legacy-irci_master_2015070.patch
    ("atomisp2: css2401 and 2401_legacy-irci_master_20150701_0213")
    Link to Intel's Android kernel patch.

 ## `coord = &me->config.internal_frame_origin_bqs_on_sctbl;` case

it was added on commit 4f744a573db3 ("media: atomisp: make
sh_css_sp_init_pipeline() ISP version independent") for ISP2401. Because
the upstreamed atomisp for the ISP2401 part is based on
irci_master_20150911_0724, hence the difference.

Because the upstreamed atomisp driver uses irci_master_20150911_0724
for ISP2401, revert the test back to `if (IS_ISP2401)`.

Fixes: 27333dadef57 ("media: atomisp: adjust some code at sh_css that could be broken")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/sh_css.c | 27 +++++++++-------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index ddee04c8248d0..54a18921fbd15 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -527,6 +527,7 @@ ia_css_stream_input_format_bits_per_pixel(struct ia_css_stream *stream)
 	return bpp;
 }
 
+/* TODO: move define to proper file in tools */
 #define GP_ISEL_TPG_MODE 0x90058
 
 #if !defined(ISP2401)
@@ -579,12 +580,8 @@ sh_css_config_input_network(struct ia_css_stream *stream) {
 		vblank_cycles = vblank_lines * (width + hblank_cycles);
 		sh_css_sp_configure_sync_gen(width, height, hblank_cycles,
 					     vblank_cycles);
-		if (!IS_ISP2401) {
-			if (pipe->stream->config.mode == IA_CSS_INPUT_MODE_TPG) {
-				/* TODO: move define to proper file in tools */
-				ia_css_device_store_uint32(GP_ISEL_TPG_MODE, 0);
-			}
-		}
+		if (pipe->stream->config.mode == IA_CSS_INPUT_MODE_TPG)
+			ia_css_device_store_uint32(GP_ISEL_TPG_MODE, 0);
 	}
 	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 			    "sh_css_config_input_network() leave:\n");
@@ -1019,16 +1016,14 @@ static bool sh_css_translate_stream_cfg_to_isys_stream_descr(
 	 * ia_css_isys_stream_capture_indication() instead of
 	 * ia_css_pipeline_sp_wait_for_isys_stream_N() as isp processing of
 	 * capture takes longer than getting an ISYS frame
-	 *
-	 * Only 2401 relevant ??
 	 */
-#if 0 // FIXME: NOT USED on Yocto Aero
-	isys_stream_descr->polling_mode
-	    = early_polling ? INPUT_SYSTEM_POLL_ON_CAPTURE_REQUEST
-	      : INPUT_SYSTEM_POLL_ON_WAIT_FOR_FRAME;
-	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
-			    "sh_css_translate_stream_cfg_to_isys_stream_descr() leave:\n");
-#endif
+	if (IS_ISP2401) {
+		isys_stream_descr->polling_mode
+		    = early_polling ? INPUT_SYSTEM_POLL_ON_CAPTURE_REQUEST
+		      : INPUT_SYSTEM_POLL_ON_WAIT_FOR_FRAME;
+		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
+				    "sh_css_translate_stream_cfg_to_isys_stream_descr() leave:\n");
+	}
 
 	return rc;
 }
@@ -1451,7 +1446,7 @@ static void start_pipe(
 
 	assert(me); /* all callers are in this file and call with non null argument */
 
-	if (!IS_ISP2401) {
+	if (IS_ISP2401) {
 		coord = &me->config.internal_frame_origin_bqs_on_sctbl;
 		params = me->stream->isp_params_configs;
 	}
-- 
GitLab


From 6cbabad304c4e197487d73131a2f2559eb79f547 Mon Sep 17 00:00:00 2001
From: Aline Santana Cordeiro <alinesantanacordeiro@gmail.com>
Date: Thu, 15 Apr 2021 18:54:23 +0200
Subject: [PATCH 2940/4878] media: staging: media: atomisp: pci: Balance braces
 around conditional statements in file atomisp_cmd.c

[ Upstream commit 0a016c35a326c6b2f558ede58ff08da7ef1da1a8 ]

Balance braces around conditional statements.
Issue detected by checkpatch.pl.
It happens in if-else statements where one of the commands
uses braces around a block of code and the other command
does not since it has just a single line of code.

Signed-off-by: Aline Santana Cordeiro <alinesantanacordeiro@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 592ea990d4ca4..21cd03f06291d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -1138,9 +1138,10 @@ void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
 					asd->frame_status[vb->i] =
 					    ATOMISP_FRAME_STATUS_OK;
 				}
-			} else
+			} else {
 				asd->frame_status[vb->i] =
 				    ATOMISP_FRAME_STATUS_OK;
+			}
 		} else {
 			asd->frame_status[vb->i] = ATOMISP_FRAME_STATUS_OK;
 		}
@@ -4945,9 +4946,9 @@ atomisp_try_fmt_file(struct atomisp_device *isp, struct v4l2_format *f)
 
 	depth = get_pixel_depth(pixelformat);
 
-	if (field == V4L2_FIELD_ANY)
+	if (field == V4L2_FIELD_ANY) {
 		field = V4L2_FIELD_NONE;
-	else if (field != V4L2_FIELD_NONE) {
+	} else if (field != V4L2_FIELD_NONE) {
 		dev_err(isp->dev, "Wrong output field\n");
 		return -EINVAL;
 	}
@@ -6587,17 +6588,17 @@ static int atomisp_get_pipe_id(struct atomisp_video_pipe *pipe)
 {
 	struct atomisp_sub_device *asd = pipe->asd;
 
-	if (ATOMISP_USE_YUVPP(asd))
+	if (ATOMISP_USE_YUVPP(asd)) {
 		return IA_CSS_PIPE_ID_YUVPP;
-	else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER)
+	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
 		return IA_CSS_PIPE_ID_VIDEO;
-	else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT)
+	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_LOWLAT) {
 		return IA_CSS_PIPE_ID_CAPTURE;
-	else if (pipe == &asd->video_out_video_capture)
+	} else if (pipe == &asd->video_out_video_capture) {
 		return IA_CSS_PIPE_ID_VIDEO;
-	else if (pipe == &asd->video_out_vf)
+	} else if (pipe == &asd->video_out_vf) {
 		return IA_CSS_PIPE_ID_CAPTURE;
-	else if (pipe == &asd->video_out_preview) {
+	} else if (pipe == &asd->video_out_preview) {
 		if (asd->run_mode->val == ATOMISP_RUN_MODE_VIDEO)
 			return IA_CSS_PIPE_ID_VIDEO;
 		else
-- 
GitLab


From 6e5353238c550de6a4d66826ae5c6cf54c783d25 Mon Sep 17 00:00:00 2001
From: Tsuchiya Yuto <kitakar@gmail.com>
Date: Mon, 18 Oct 2021 01:23:34 +0900
Subject: [PATCH 2941/4878] media: atomisp: add NULL check for asd obtained
 from atomisp_video_pipe

[ Upstream commit c10bcb13462e9cf43111d17f1e08b4bb4d4401b0 ]

This is almost a BUG report with RFC patch that just avoids kernel
oopses. Thus, prefixed with [BUG][RFC].

Here is the kernel log after running `v4l2-compliance -d /dev/video4`
with this patch applied:

	kern  :err   : [25507.580392] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.592343] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.592995] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.593685] atomisp-isp2 0000:00:03.0: atomisp_g_input(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.593719] atomisp-isp2 0000:00:03.0: atomisp_g_parm(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.593727] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	[omitting 42 same messages]
	kern  :err   : [25507.593976] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594191] atomisp-isp2 0000:00:03.0: atomisp_g_input(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594449] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	[omitting 43 same messages]
	kern  :err   : [25507.594756] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594779] atomisp-isp2 0000:00:03.0: atomisp_g_ctrl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594787] atomisp-isp2 0000:00:03.0: atomisp_s_ctrl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594803] atomisp-isp2 0000:00:03.0: atomisp_camera_g_ext_ctrls(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594880] atomisp-isp2 0000:00:03.0: atomisp_enum_fmt_cap(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.594915] atomisp-isp2 0000:00:03.0: atomisp_g_parm(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.595058] atomisp-isp2 0000:00:03.0: atomisp_try_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.595089] atomisp-isp2 0000:00:03.0: atomisp_set_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.595124] atomisp-isp2 0000:00:03.0: atomisp_set_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.595221] atomisp-isp2 0000:00:03.0: atomisp_set_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.595241] atomisp-isp2 0000:00:03.0: atomisp_set_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.601571] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.607496] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.608604] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.611988] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.617420] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.618429] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.618811] atomisp-isp2 0000:00:03.0: atomisp_g_parm(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.622193] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.627355] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.628391] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.631143] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.635813] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.636489] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.636504] atomisp-isp2 0000:00:03.0: atomisp_s_input(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.636516] atomisp-isp2 0000:00:03.0: atomisp_set_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.639111] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.646152] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.646831] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.646847] atomisp-isp2 0000:00:03.0: atomisp_s_input(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.650079] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.657476] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.658741] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.658759] atomisp-isp2 0000:00:03.0: atomisp_s_input(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.658771] atomisp-isp2 0000:00:03.0: atomisp_set_fmt(): asd is NULL, device is ATOMISP ISP ACC
	kern  :err   : [25507.660959] atomisp-isp2 0000:00:03.0: can't change power state from D3cold to D0 (config space inaccessible)
	kern  :warn  : [25507.666665] isys dma store at addr(0xcd408) val(0)
	kern  :err   : [25507.667397] atomisp-isp2 0000:00:03.0: atomisp_queryctl(): asd is NULL, device is ATOMISP ISP ACC

[mchehab: fix coding style]
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 73 +++++++++++++++
 .../staging/media/atomisp/pci/atomisp_fops.c  |  6 ++
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 90 +++++++++++++++++++
 3 files changed, 169 insertions(+)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 21cd03f06291d..90d50a693ce57 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -1715,6 +1715,12 @@ void atomisp_wdt_refresh_pipe(struct atomisp_video_pipe *pipe,
 {
 	unsigned long next;
 
+	if (!pipe->asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, pipe->vdev.name);
+		return;
+	}
+
 	if (delay != ATOMISP_WDT_KEEP_CURRENT_DELAY)
 		pipe->wdt_duration = delay;
 
@@ -1777,6 +1783,12 @@ void atomisp_wdt_refresh(struct atomisp_sub_device *asd, unsigned int delay)
 /* ISP2401 */
 void atomisp_wdt_stop_pipe(struct atomisp_video_pipe *pipe, bool sync)
 {
+	if (!pipe->asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, pipe->vdev.name);
+		return;
+	}
+
 	if (!atomisp_is_wdt_running(pipe))
 		return;
 
@@ -4109,6 +4121,12 @@ void atomisp_handle_parameter_and_buffer(struct atomisp_video_pipe *pipe)
 	unsigned long irqflags;
 	bool need_to_enqueue_buffer = false;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, pipe->vdev.name);
+		return;
+	}
+
 	if (atomisp_is_vf_pipe(pipe))
 		return;
 
@@ -4196,6 +4214,12 @@ int atomisp_set_parameters(struct video_device *vdev,
 	struct atomisp_css_params *css_param = &asd->params.css_param;
 	int ret;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (!asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream) {
 		dev_err(asd->isp->dev, "%s: internal error!\n", __func__);
 		return -EINVAL;
@@ -4856,6 +4880,12 @@ int atomisp_try_fmt(struct video_device *vdev, struct v4l2_format *f,
 	int source_pad = atomisp_subdev_source_pad(vdev);
 	int ret;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (!isp->inputs[asd->input_curr].camera)
 		return -EINVAL;
 
@@ -5202,6 +5232,12 @@ static int atomisp_set_fmt_to_isp(struct video_device *vdev,
 	const struct atomisp_in_fmt_conv *fc;
 	int ret, i;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	v4l2_fh_init(&fh.vfh, vdev);
 
 	isp_sink_crop = atomisp_subdev_get_rect(
@@ -5513,6 +5549,7 @@ static int atomisp_set_fmt_to_snr(struct video_device *vdev,
 				  unsigned int dvs_env_w, unsigned int dvs_env_h)
 {
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
+	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
 	const struct atomisp_format_bridge *format;
 	struct v4l2_subdev_pad_config pad_cfg;
 	struct v4l2_subdev_format vformat = {
@@ -5528,6 +5565,12 @@ static int atomisp_set_fmt_to_snr(struct video_device *vdev,
 	struct v4l2_subdev_fh fh;
 	int ret;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	v4l2_fh_init(&fh.vfh, vdev);
 
 	stream_index = atomisp_source_pad_to_stream_id(asd, source_pad);
@@ -5618,6 +5661,12 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
 	struct v4l2_subdev_fh fh;
 	int ret;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (source_pad >= ATOMISP_SUBDEV_PADS_NUM)
 		return -EINVAL;
 
@@ -6051,6 +6100,12 @@ int atomisp_set_fmt_file(struct video_device *vdev, struct v4l2_format *f)
 	struct v4l2_subdev_fh fh;
 	int ret;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	v4l2_fh_init(&fh.vfh, vdev);
 
 	dev_dbg(isp->dev, "setting fmt %ux%u 0x%x for file inject\n",
@@ -6375,6 +6430,12 @@ bool atomisp_is_vf_pipe(struct atomisp_video_pipe *pipe)
 {
 	struct atomisp_sub_device *asd = pipe->asd;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, pipe->vdev.name);
+		return false;
+	}
+
 	if (pipe == &asd->video_out_vf)
 		return true;
 
@@ -6588,6 +6649,12 @@ static int atomisp_get_pipe_id(struct atomisp_video_pipe *pipe)
 {
 	struct atomisp_sub_device *asd = pipe->asd;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, pipe->vdev.name);
+		return -EINVAL;
+	}
+
 	if (ATOMISP_USE_YUVPP(asd)) {
 		return IA_CSS_PIPE_ID_YUVPP;
 	} else if (asd->vfpp->val == ATOMISP_VFPP_DISABLE_SCALER) {
@@ -6625,6 +6692,12 @@ int atomisp_get_invalid_frame_num(struct video_device *vdev,
 	struct ia_css_pipe_info p_info;
 	int ret;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (asd->isp->inputs[asd->input_curr].camera_caps->
 	    sensor[asd->sensor_curr].stream_num > 1) {
 		/* External ISP */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index f1e6b25978534..52d24c1ca0d64 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -1171,6 +1171,12 @@ static int atomisp_mmap(struct file *file, struct vm_area_struct *vma)
 	u32 origin_size, new_size;
 	int ret;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (!(vma->vm_flags & (VM_WRITE | VM_READ)))
 		return -EACCES;
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 9da82855552de..35717a91cbd15 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -646,6 +646,12 @@ static int atomisp_g_input(struct file *file, void *fh, unsigned int *input)
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	rt_mutex_lock(&isp->mutex);
 	*input = asd->input_curr;
 	rt_mutex_unlock(&isp->mutex);
@@ -665,6 +671,12 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 	struct v4l2_subdev *motor;
 	int ret;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	rt_mutex_lock(&isp->mutex);
 	if (input >= ATOM_ISP_MAX_INPUTS || input >= isp->input_cnt) {
 		dev_dbg(isp->dev, "input_cnt: %d\n", isp->input_cnt);
@@ -765,6 +777,12 @@ static int atomisp_enum_fmt_cap(struct file *file, void *fh,
 	unsigned int i, fi = 0;
 	int rval;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	rt_mutex_lock(&isp->mutex);
 	rval = v4l2_subdev_call(isp->inputs[asd->input_curr].camera, pad,
 				enum_mbus_code, NULL, &code);
@@ -1027,6 +1045,12 @@ int __atomisp_reqbufs(struct file *file, void *fh,
 	u16 stream_id = atomisp_source_pad_to_stream_id(asd, source_pad);
 	int ret = 0, i = 0;
 
+	if (!asd) {
+		dev_err(pipe->isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (req->count == 0) {
 		mutex_lock(&pipe->capq.vb_lock);
 		if (!list_empty(&pipe->capq.stream))
@@ -1154,6 +1178,12 @@ static int atomisp_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 	u32 pgnr;
 	int ret = 0;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	rt_mutex_lock(&isp->mutex);
 	if (isp->isp_fatal_error) {
 		ret = -EIO;
@@ -1389,6 +1419,12 @@ static int atomisp_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	int ret = 0;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	rt_mutex_lock(&isp->mutex);
 
 	if (isp->isp_fatal_error) {
@@ -1640,6 +1676,12 @@ static int atomisp_streamon(struct file *file, void *fh,
 	int ret = 0;
 	unsigned long irqflags;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	dev_dbg(isp->dev, "Start stream on pad %d for asd%d\n",
 		atomisp_subdev_source_pad(vdev), asd->index);
 
@@ -1901,6 +1943,12 @@ int __atomisp_streamoff(struct file *file, void *fh, enum v4l2_buf_type type)
 	unsigned long flags;
 	bool first_streamoff = false;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	dev_dbg(isp->dev, "Stop stream on pad %d for asd%d\n",
 		atomisp_subdev_source_pad(vdev), asd->index);
 
@@ -2150,6 +2198,12 @@ static int atomisp_g_ctrl(struct file *file, void *fh,
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	int i, ret = -EINVAL;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	for (i = 0; i < ctrls_num; i++) {
 		if (ci_v4l2_controls[i].id == control->id) {
 			ret = 0;
@@ -2229,6 +2283,12 @@ static int atomisp_s_ctrl(struct file *file, void *fh,
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	int i, ret = -EINVAL;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	for (i = 0; i < ctrls_num; i++) {
 		if (ci_v4l2_controls[i].id == control->id) {
 			ret = 0;
@@ -2310,6 +2370,12 @@ static int atomisp_queryctl(struct file *file, void *fh,
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	switch (qc->id) {
 	case V4L2_CID_FOCUS_ABSOLUTE:
 	case V4L2_CID_FOCUS_RELATIVE:
@@ -2355,6 +2421,12 @@ static int atomisp_camera_g_ext_ctrls(struct file *file, void *fh,
 	int i;
 	int ret = 0;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (!IS_ISP2401)
 		motor = isp->inputs[asd->input_curr].motor;
 	else
@@ -2466,6 +2538,12 @@ static int atomisp_camera_s_ext_ctrls(struct file *file, void *fh,
 	int i;
 	int ret = 0;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (!IS_ISP2401)
 		motor = isp->inputs[asd->input_curr].motor;
 	else
@@ -2591,6 +2669,12 @@ static int atomisp_g_parm(struct file *file, void *fh,
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 		dev_err(isp->dev, "unsupported v4l2 buf type\n");
 		return -EINVAL;
@@ -2613,6 +2697,12 @@ static int atomisp_s_parm(struct file *file, void *fh,
 	int rval;
 	int fps;
 
+	if (!asd) {
+		dev_err(isp->dev, "%s(): asd is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 		dev_err(isp->dev, "unsupported v4l2 buf type\n");
 		return -EINVAL;
-- 
GitLab


From fc2b95e7aeae0acc90f700e67d51f89cc988ea63 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Mon, 25 Oct 2021 09:06:52 +0100
Subject: [PATCH 2942/4878] media: atomisp: fix enum formats logic

[ Upstream commit fae46cb0531b45c789e39128f676f2bafa3a7b47 ]

Changeset 374d62e7aa50 ("media: v4l2-subdev: Verify v4l2_subdev_call() pad config argument")
added an extra verification for a pads parameter for enum mbus
format code.

Such change broke atomisp, because now the V4L2 core
refuses to enum MBUS formats if the state is empty.

So, add .which field in order to select the active formats,
in order to make it work again.

While here, improve error messages.

Fixes: 374d62e7aa50 ("media: v4l2-subdev: Verify v4l2_subdev_call() pad config argument")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 23 ++++++++++++++-----
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 35717a91cbd15..830df02626634 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -773,7 +773,10 @@ static int atomisp_enum_fmt_cap(struct file *file, void *fh,
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
-	struct v4l2_subdev_mbus_code_enum code = { 0 };
+	struct v4l2_subdev_mbus_code_enum code = {
+		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+	};
+	struct v4l2_subdev *camera;
 	unsigned int i, fi = 0;
 	int rval;
 
@@ -783,14 +786,20 @@ static int atomisp_enum_fmt_cap(struct file *file, void *fh,
 		return -EINVAL;
 	}
 
+	camera = isp->inputs[asd->input_curr].camera;
+	if(!camera) {
+		dev_err(isp->dev, "%s(): camera is NULL, device is %s\n",
+			__func__, vdev->name);
+		return -EINVAL;
+	}
+
 	rt_mutex_lock(&isp->mutex);
-	rval = v4l2_subdev_call(isp->inputs[asd->input_curr].camera, pad,
-				enum_mbus_code, NULL, &code);
+
+	rval = v4l2_subdev_call(camera, pad, enum_mbus_code, NULL, &code);
 	if (rval == -ENOIOCTLCMD) {
 		dev_warn(isp->dev,
-			 "enum_mbus_code pad op not supported. Please fix your sensor driver!\n");
-		//	rval = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
-		//				video, enum_mbus_fmt, 0, &code.code);
+			 "enum_mbus_code pad op not supported by %s. Please fix your sensor driver!\n",
+			 camera->name);
 	}
 	rt_mutex_unlock(&isp->mutex);
 
@@ -820,6 +829,8 @@ static int atomisp_enum_fmt_cap(struct file *file, void *fh,
 		f->pixelformat = format->pixelformat;
 		return 0;
 	}
+	dev_err(isp->dev, "%s(): format for code %x not found.\n",
+		__func__, code.code);
 
 	return -EINVAL;
 }
-- 
GitLab


From 8d132d9dd8bae9f2d5ff153b3fe6eb31a000fe39 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 12 Oct 2021 09:21:50 +0100
Subject: [PATCH 2943/4878] media: atomisp: fix uninitialized bug in
 gmin_get_pmic_id_and_addr()

[ Upstream commit cb4d67a998e97365afdf34965b069601da1dae60 ]

The "power" pointer is not initialized on the else path and that would
lead to an Oops.

Link: https://lore.kernel.org/linux-media/20211012082150.GA31086@kili
Fixes: c30f4cb2d4c7 ("media: atomisp: Refactor PMIC detection to a separate function")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
index 135994d44802c..34480ca164746 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
@@ -481,7 +481,7 @@ fail:
 
 static u8 gmin_get_pmic_id_and_addr(struct device *dev)
 {
-	struct i2c_client *power;
+	struct i2c_client *power = NULL;
 	static u8 pmic_i2c_addr;
 
 	if (pmic_id)
-- 
GitLab


From b441d94287359c1aa5f67e3d2977f0a1713ae2fc Mon Sep 17 00:00:00 2001
From: Jammy Huang <jammy_huang@aspeedtech.com>
Date: Wed, 3 Nov 2021 08:23:54 +0000
Subject: [PATCH 2944/4878] media: aspeed: fix mode-detect always time out at
 2nd run

[ Upstream commit 62cea52ad4bead0ae4be2cfe1142eb0aae0e9fbd ]

aspeed_video_get_resolution() will try to do res-detect again if the
timing got in last try is invalid. But it will always time out because
VE_SEQ_CTRL_TRIG_MODE_DET is only cleared after 1st mode-detect.

To fix the problem, just clear VE_SEQ_CTRL_TRIG_MODE_DET before setting
it in aspeed_video_enable_mode_detect().

Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver")
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/aspeed-video.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 7bb6babdcade0..23c41c545c536 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -500,6 +500,10 @@ static void aspeed_video_enable_mode_detect(struct aspeed_video *video)
 	aspeed_video_update(video, VE_INTERRUPT_CTRL, 0,
 			    VE_INTERRUPT_MODE_DETECT);
 
+	/* Disable mode detect in order to re-trigger */
+	aspeed_video_update(video, VE_SEQ_CTRL,
+			    VE_SEQ_CTRL_TRIG_MODE_DET, 0);
+
 	/* Trigger mode detect */
 	aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_TRIG_MODE_DET);
 }
@@ -786,10 +790,6 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 			return;
 		}
 
-		/* Disable mode detect in order to re-trigger */
-		aspeed_video_update(video, VE_SEQ_CTRL,
-				    VE_SEQ_CTRL_TRIG_MODE_DET, 0);
-
 		aspeed_video_check_and_set_polarity(video);
 
 		aspeed_video_enable_mode_detect(video);
-- 
GitLab


From 0ff0ae69d27cfeb463b4452b74cebc52bdbd71e6 Mon Sep 17 00:00:00 2001
From: Dongliang Mu <mudongliangabcd@gmail.com>
Date: Mon, 1 Nov 2021 09:55:39 +0000
Subject: [PATCH 2945/4878] media: em28xx: fix memory leak in em28xx_init_dev

[ Upstream commit 22be5a10d0b24eec9e45decd15d7e6112b25f080 ]

In the em28xx_init_rev, if em28xx_audio_setup fails, this function fails
to deallocate the media_dev allocated in the em28xx_media_device_init.

Fix this by adding em28xx_unregister_media_device to free media_dev.

BTW, this patch is tested in my local syzkaller instance, and it can
prevent the memory leak from occurring again.

CC: Pavel Skripkin <paskripkin@gmail.com>
Fixes: 37ecc7b1278f ("[media] em28xx: add media controller support")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/em28xx/em28xx-cards.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index cf45cc566cbe2..87e375562dbb2 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -3575,8 +3575,10 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
 
 	if (dev->is_audio_only) {
 		retval = em28xx_audio_setup(dev);
-		if (retval)
-			return -ENODEV;
+		if (retval) {
+			retval = -ENODEV;
+			goto err_deinit_media;
+		}
 		em28xx_init_extension(dev);
 
 		return 0;
@@ -3595,7 +3597,7 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
 		dev_err(&dev->intf->dev,
 			"%s: em28xx_i2c_register bus 0 - error [%d]!\n",
 		       __func__, retval);
-		return retval;
+		goto err_deinit_media;
 	}
 
 	/* register i2c bus 1 */
@@ -3611,9 +3613,7 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
 				"%s: em28xx_i2c_register bus 1 - error [%d]!\n",
 				__func__, retval);
 
-			em28xx_i2c_unregister(dev, 0);
-
-			return retval;
+			goto err_unreg_i2c;
 		}
 	}
 
@@ -3621,6 +3621,12 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev,
 	em28xx_card_setup(dev);
 
 	return 0;
+
+err_unreg_i2c:
+	em28xx_i2c_unregister(dev, 0);
+err_deinit_media:
+	em28xx_unregister_media_device(dev);
+	return retval;
 }
 
 static int em28xx_duplicate_dev(struct em28xx *dev)
-- 
GitLab


From 0b57480ed51a9b234591980c61b5f34e9f1bd207 Mon Sep 17 00:00:00 2001
From: Jammy Huang <jammy_huang@aspeedtech.com>
Date: Tue, 9 Nov 2021 03:12:27 +0000
Subject: [PATCH 2946/4878] media: aspeed: Update signal status immediately to
 ensure sane hw state

[ Upstream commit af6d1bde395cac174ee71adcd3fa43f6435c7206 ]

If res-chg, VE_INTERRUPT_MODE_DETECT_WD irq will be raised. But
v4l2_input_status won't be updated to no-signal immediately until
aspeed_video_get_resolution() in aspeed_video_resolution_work().

During the period of time, aspeed_video_start_frame() could be called
because it doesn't know signal becomes unstable now. If it goes with
aspeed_video_init_regs() of aspeed_video_irq_res_change()
simultaneously, it will mess up hw state.

To fix this problem, v4l2_input_status is updated to no-signal
immediately for VE_INTERRUPT_MODE_DETECT_WD irq.

Fixes: d2b4387f3bdf ("media: platform: Add Aspeed Video Engine driver")
Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/aspeed-video.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 23c41c545c536..debc7509c173c 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -556,6 +556,8 @@ static void aspeed_video_irq_res_change(struct aspeed_video *video, ulong delay)
 	set_bit(VIDEO_RES_CHANGE, &video->flags);
 	clear_bit(VIDEO_FRAME_INPRG, &video->flags);
 
+	video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL;
+
 	aspeed_video_off(video);
 	aspeed_video_bufs_done(video, VB2_BUF_STATE_ERROR);
 
@@ -1337,7 +1339,6 @@ static void aspeed_video_resolution_work(struct work_struct *work)
 	struct delayed_work *dwork = to_delayed_work(work);
 	struct aspeed_video *video = container_of(dwork, struct aspeed_video,
 						  res_work);
-	u32 input_status = video->v4l2_input_status;
 
 	aspeed_video_on(video);
 
@@ -1350,8 +1351,7 @@ static void aspeed_video_resolution_work(struct work_struct *work)
 	aspeed_video_get_resolution(video);
 
 	if (video->detected_timings.width != video->active_timings.width ||
-	    video->detected_timings.height != video->active_timings.height ||
-	    input_status != video->v4l2_input_status) {
+	    video->detected_timings.height != video->active_timings.height) {
 		static const struct v4l2_event ev = {
 			.type = V4L2_EVENT_SOURCE_CHANGE,
 			.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
-- 
GitLab


From 96d710b1c6ff0f297f0780c3b3568e80e3774c7c Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@mailbox.org>
Date: Tue, 26 Oct 2021 20:28:12 +0200
Subject: [PATCH 2947/4878] arm64: dts: amlogic: meson-g12: Fix GPU operating
 point table node name

[ Upstream commit bb98a6fd0b0e227cefb2ba91cea2b55455f203b7 ]

Starting with commit 94274f20f6bf ("dt-bindings: opp: Convert to DT
schema") the opp node name has a mandatory pattern. This change
fixes the dtbs_check warning:
gpu-opp-table: $nodename:0: 'gpu-opp-table' does not match
'^opp-table(-[a-z0-9]+)?$'
Put the 'gpu' part at the end to match the pattern.

Fixes: 916a0edc43f0 ("arm64: dts: amlogic: meson-g12: add the Mali OPP table and use DVFS")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Alexander Stein <alexander.stein@mailbox.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211026182813.900775-2-alexander.stein@mailbox.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 959b299344e54..7342c8a2b322d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -52,7 +52,7 @@
 		secure-monitor = <&sm>;
 	};
 
-	gpu_opp_table: gpu-opp-table {
+	gpu_opp_table: opp-table-gpu {
 		compatible = "operating-points-v2";
 
 		opp-124999998 {
-- 
GitLab


From 6f012f2c445b28ee8c230f141bc7e55a29efbf27 Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@mailbox.org>
Date: Tue, 26 Oct 2021 20:28:13 +0200
Subject: [PATCH 2948/4878] arm64: dts: amlogic: Fix SPI NOR flash node name
 for ODROID N2/N2+

[ Upstream commit 95d35256b564aca33fb661eac77dc94bfcffc8df ]

Fix the schema warning: "spi-flash@0: $nodename:0: 'spi-flash@0' does
 not match '^flash(@.*)?$'" from jedec,spi-nor.yaml

Fixes: a084eaf3096c ("arm64: dts: meson-g12b-odroid-n2: add SPIFC controller node")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Alexander Stein <alexander.stein@mailbox.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211026182813.900775-3-alexander.stein@mailbox.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
index 59b5f39088757..b9b8cd4b5ba9d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
@@ -543,7 +543,7 @@
 	pinctrl-0 = <&nor_pins>;
 	pinctrl-names = "default";
 
-	mx25u64: spi-flash@0 {
+	mx25u64: flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		compatible = "mxicy,mx25u6435f", "jedec,spi-nor";
-- 
GitLab


From eb1f75fa2458efa6a882300c792106c5af7551de Mon Sep 17 00:00:00 2001
From: Christian Hewitt <christianshewitt@gmail.com>
Date: Tue, 12 Oct 2021 05:25:20 +0000
Subject: [PATCH 2949/4878] arm64: dts: meson-gxbb-wetek: fix HDMI in early
 boot

[ Upstream commit 8182a35868db5f053111d5d9d4da8fcb3f99259d ]

Mark the VDDIO_AO18 regulator always-on and set hdmi-supply for the hdmi_tx
node to ensure HDMI is powered in the early stages of boot.

Fixes: fb72c03e0e32 ("ARM64: dts: meson-gxbb-wetek: add a wetek specific dtsi to cleanup hub and play2")

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211012052522.30873-2-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
index a350fee1264d7..8e2af986cebaf 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
@@ -64,6 +64,7 @@
 		regulator-name = "VDDIO_AO18";
 		regulator-min-microvolt = <1800000>;
 		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
 	};
 
 	vcc_3v3: regulator-vcc_3v3 {
@@ -161,6 +162,7 @@
 	status = "okay";
 	pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
 	pinctrl-names = "default";
+	hdmi-supply = <&vddio_ao18>;
 };
 
 &hdmi_tx_tmds_port {
-- 
GitLab


From 6edd1bd8e3d81d55d2cd00ffb44d55bdfb5a1d6f Mon Sep 17 00:00:00 2001
From: Christian Hewitt <christianshewitt@gmail.com>
Date: Tue, 12 Oct 2021 05:25:21 +0000
Subject: [PATCH 2950/4878] arm64: dts: meson-gxbb-wetek: fix missing GPIO
 binding

[ Upstream commit c019abb2feba3cbbd7cf7178f8e6499c4fa6fced ]

The absence of this binding appears to be harmless in Linux but it breaks
Ethernet support in mainline u-boot. So add the binding (which is present
in all other u-boot supported GXBB device-trees).

Fixes: fb72c03e0e32 ("ARM64: dts: meson-gxbb-wetek: add a wetek specific dtsi to cleanup hub and play2")

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211012052522.30873-3-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
index 8e2af986cebaf..a4d34398da358 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
@@ -6,6 +6,7 @@
  */
 
 #include "meson-gxbb.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	aliases {
-- 
GitLab


From 98923ebb034b8c405c5e9e216834021fe72d7875 Mon Sep 17 00:00:00 2001
From: Alexander Aring <aahringo@redhat.com>
Date: Fri, 16 Jul 2021 16:22:34 -0400
Subject: [PATCH 2951/4878] fs: dlm: use sk->sk_socket instead of con->sock

[ Upstream commit feb704bd17786c8ff52a49d7759b8ee4f3a5aaac ]

Instead of dereference "con->sock" we can get the socket structure over
"sk->sk_socket" as well. This patch will switch to this behaviour.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/lowcomms.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 0c78fdfb1f6fa..0a8645ed4b2d6 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -480,8 +480,7 @@ static void lowcomms_error_report(struct sock *sk)
 		goto out;
 
 	orig_report = listen_sock.sk_error_report;
-	if (con->sock == NULL ||
-	    kernel_getpeername(con->sock, (struct sockaddr *)&saddr) < 0) {
+	if (kernel_getpeername(sk->sk_socket, (struct sockaddr *)&saddr) < 0) {
 		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
 				   "sending to node %d, port %d, "
 				   "sk_err=%d/%d\n", dlm_our_nodeid(),
-- 
GitLab


From 55917db359763244fd76a4e4b0073ede949b2697 Mon Sep 17 00:00:00 2001
From: Alexander Aring <aahringo@redhat.com>
Date: Mon, 15 Nov 2021 08:57:05 -0500
Subject: [PATCH 2952/4878] fs: dlm: don't call kernel_getpeername() in
 error_report()

[ Upstream commit 4c3d90570bcc2b338f70f61f01110268e281ca3c ]

In some cases kernel_getpeername() will held the socket lock which is
already held when the socket layer calls error_report() callback. Since
commit 9dfc685e0262 ("inet: remove races in inet{6}_getname()") this
problem becomes more likely because the socket lock will be held always.
You will see something like:

bob9-u5 login: [  562.316860] BUG: spinlock recursion on CPU#7, swapper/7/0
[  562.318562]  lock: 0xffff8f2284720088, .magic: dead4ead, .owner: swapper/7/0, .owner_cpu: 7
[  562.319522] CPU: 7 PID: 0 Comm: swapper/7 Not tainted 5.15.0+ #135
[  562.320346] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.13.0-2.module+el8.3.0+7353+9de0a3cc 04/01/2014
[  562.321277] Call Trace:
[  562.321529]  <IRQ>
[  562.321734]  dump_stack_lvl+0x33/0x42
[  562.322282]  do_raw_spin_lock+0x8b/0xc0
[  562.322674]  lock_sock_nested+0x1e/0x50
[  562.323057]  inet_getname+0x39/0x110
[  562.323425]  ? sock_def_readable+0x80/0x80
[  562.323838]  lowcomms_error_report+0x63/0x260 [dlm]
[  562.324338]  ? wait_for_completion_interruptible_timeout+0xd2/0x120
[  562.324949]  ? lock_timer_base+0x67/0x80
[  562.325330]  ? do_raw_spin_unlock+0x49/0xc0
[  562.325735]  ? _raw_spin_unlock_irqrestore+0x1e/0x40
[  562.326218]  ? del_timer+0x54/0x80
[  562.326549]  sk_error_report+0x12/0x70
[  562.326919]  tcp_validate_incoming+0x3c8/0x530
[  562.327347]  ? kvm_clock_read+0x14/0x30
[  562.327718]  ? ktime_get+0x3b/0xa0
[  562.328055]  tcp_rcv_established+0x121/0x660
[  562.328466]  tcp_v4_do_rcv+0x132/0x260
[  562.328835]  tcp_v4_rcv+0xcea/0xe20
[  562.329173]  ip_protocol_deliver_rcu+0x35/0x1f0
[  562.329615]  ip_local_deliver_finish+0x54/0x60
[  562.330050]  ip_local_deliver+0xf7/0x110
[  562.330431]  ? inet_rtm_getroute+0x211/0x840
[  562.330848]  ? ip_protocol_deliver_rcu+0x1f0/0x1f0
[  562.331310]  ip_rcv+0xe1/0xf0
[  562.331603]  ? ip_local_deliver+0x110/0x110
[  562.332011]  __netif_receive_skb_core+0x46a/0x1040
[  562.332476]  ? inet_gro_receive+0x263/0x2e0
[  562.332885]  __netif_receive_skb_list_core+0x13b/0x2c0
[  562.333383]  netif_receive_skb_list_internal+0x1c8/0x2f0
[  562.333896]  ? update_load_avg+0x7e/0x5e0
[  562.334285]  gro_normal_list.part.149+0x19/0x40
[  562.334722]  napi_complete_done+0x67/0x160
[  562.335134]  virtnet_poll+0x2ad/0x408 [virtio_net]
[  562.335644]  __napi_poll+0x28/0x140
[  562.336012]  net_rx_action+0x23d/0x300
[  562.336414]  __do_softirq+0xf2/0x2ea
[  562.336803]  irq_exit_rcu+0xc1/0xf0
[  562.337173]  common_interrupt+0xb9/0xd0

It is and was always forbidden to call kernel_getpeername() in context
of error_report(). To get rid of the problem we access the destination
address for the peer over the socket structure. While on it we fix to
print out the destination port of the inet socket.

Fixes: 1a31833d085a ("DLM: Replace nodeid_to_addr with kernel_getpeername")
Reported-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/lowcomms.c | 42 ++++++++++++++++++++----------------------
 1 file changed, 20 insertions(+), 22 deletions(-)

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 0a8645ed4b2d6..904855fa20655 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -471,8 +471,8 @@ int dlm_lowcomms_connect_node(int nodeid)
 static void lowcomms_error_report(struct sock *sk)
 {
 	struct connection *con;
-	struct sockaddr_storage saddr;
 	void (*orig_report)(struct sock *) = NULL;
+	struct inet_sock *inet;
 
 	read_lock_bh(&sk->sk_callback_lock);
 	con = sock2con(sk);
@@ -480,33 +480,31 @@ static void lowcomms_error_report(struct sock *sk)
 		goto out;
 
 	orig_report = listen_sock.sk_error_report;
-	if (kernel_getpeername(sk->sk_socket, (struct sockaddr *)&saddr) < 0) {
-		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
-				   "sending to node %d, port %d, "
-				   "sk_err=%d/%d\n", dlm_our_nodeid(),
-				   con->nodeid, dlm_config.ci_tcp_port,
-				   sk->sk_err, sk->sk_err_soft);
-	} else if (saddr.ss_family == AF_INET) {
-		struct sockaddr_in *sin4 = (struct sockaddr_in *)&saddr;
 
+	inet = inet_sk(sk);
+	switch (sk->sk_family) {
+	case AF_INET:
 		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
-				   "sending to node %d at %pI4, port %d, "
+				   "sending to node %d at %pI4, dport %d, "
 				   "sk_err=%d/%d\n", dlm_our_nodeid(),
-				   con->nodeid, &sin4->sin_addr.s_addr,
-				   dlm_config.ci_tcp_port, sk->sk_err,
+				   con->nodeid, &inet->inet_daddr,
+				   ntohs(inet->inet_dport), sk->sk_err,
 				   sk->sk_err_soft);
-	} else {
-		struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&saddr;
-
+		break;
+	case AF_INET6:
 		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
-				   "sending to node %d at %u.%u.%u.%u, "
-				   "port %d, sk_err=%d/%d\n", dlm_our_nodeid(),
-				   con->nodeid, sin6->sin6_addr.s6_addr32[0],
-				   sin6->sin6_addr.s6_addr32[1],
-				   sin6->sin6_addr.s6_addr32[2],
-				   sin6->sin6_addr.s6_addr32[3],
-				   dlm_config.ci_tcp_port, sk->sk_err,
+				   "sending to node %d at %pI6c, "
+				   "dport %d, sk_err=%d/%d\n", dlm_our_nodeid(),
+				   con->nodeid, &sk->sk_v6_daddr,
+				   ntohs(inet->inet_dport), sk->sk_err,
 				   sk->sk_err_soft);
+		break;
+	default:
+		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
+				   "invalid socket family %d set, "
+				   "sk_err=%d/%d\n", dlm_our_nodeid(),
+				   sk->sk_family, sk->sk_err, sk->sk_err_soft);
+		goto out;
 	}
 out:
 	read_unlock_bh(&sk->sk_callback_lock);
-- 
GitLab


From 3273541fed60f2c0191b5923758fcda6992b189b Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Mon, 25 Oct 2021 21:56:29 +0100
Subject: [PATCH 2953/4878] memory: renesas-rpc-if: Return error in case
 devm_ioremap_resource() fails

[ Upstream commit 818fdfa89baac77a8df5a2c30f4fb798cc937aa0 ]

Make sure we return error in case devm_ioremap_resource() fails for dirmap
resource.

Fixes: ca7d8b980b67 ("memory: add Renesas RPC-IF driver")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20211025205631.21151-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/memory/renesas-rpc-if.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memory/renesas-rpc-if.c b/drivers/memory/renesas-rpc-if.c
index a760ab08256ff..9019121a80f53 100644
--- a/drivers/memory/renesas-rpc-if.c
+++ b/drivers/memory/renesas-rpc-if.c
@@ -245,7 +245,7 @@ int rpcif_sw_init(struct rpcif *rpc, struct device *dev)
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dirmap");
 	rpc->dirmap = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(rpc->dirmap))
-		rpc->dirmap = NULL;
+		return PTR_ERR(rpc->dirmap);
 	rpc->size = resource_size(res);
 
 	rpc->rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
-- 
GitLab


From ffc9019bd991707701273c2e5d8aed472229fc4d Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Mon, 1 Nov 2021 10:12:12 +0300
Subject: [PATCH 2954/4878] Bluetooth: stop proccessing malicious adv data

[ Upstream commit 3a56ef719f0b9682afb8a86d64b2399e36faa4e6 ]

Syzbot reported slab-out-of-bounds read in hci_le_adv_report_evt(). The
problem was in missing validaion check.

We should check if data is not malicious and we can read next data block.
If we won't check ptr validness, code can read a way beyond skb->end and
it can cause problems, of course.

Fixes: e95beb414168 ("Bluetooth: hci_le_adv_report_evt code refactoring")
Reported-and-tested-by: syzbot+e3fcb9c4f3c2a931dc40@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_event.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 9f52145bb7b76..7ffcca9ae82a1 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5661,7 +5661,8 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		struct hci_ev_le_advertising_info *ev = ptr;
 		s8 rssi;
 
-		if (ev->length <= HCI_MAX_AD_LENGTH) {
+		if (ev->length <= HCI_MAX_AD_LENGTH &&
+		    ev->data + ev->length <= skb_tail_pointer(skb)) {
 			rssi = ev->data[ev->length];
 			process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
 					   ev->bdaddr_type, NULL, 0, rssi,
@@ -5671,6 +5672,11 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		}
 
 		ptr += sizeof(*ev) + ev->length + 1;
+
+		if (ptr > (void *) skb_tail_pointer(skb) - sizeof(*ev)) {
+			bt_dev_err(hdev, "Malicious advertising data. Stopping processing");
+			break;
+		}
 	}
 
 	hci_dev_unlock(hdev);
-- 
GitLab


From df94b37e902b4ac0f3e9b350a0bcda1a994fdef2 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Mon, 15 Nov 2021 11:29:55 +0200
Subject: [PATCH 2955/4878] ath11k: Fix ETSI regd with weather radar overlap

[ Upstream commit 086c921a354089f209318501038d43c98d3f409f ]

Some ETSI countries have a small overlap in the wireless-regdb with an ETSI
channel (5590-5650). A good example is Australia:

  country AU: DFS-ETSI
  	(2400 - 2483.5 @ 40), (36)
  	(5150 - 5250 @ 80), (23), NO-OUTDOOR, AUTO-BW
  	(5250 - 5350 @ 80), (20), NO-OUTDOOR, AUTO-BW, DFS
  	(5470 - 5600 @ 80), (27), DFS
  	(5650 - 5730 @ 80), (27), DFS
  	(5730 - 5850 @ 80), (36)
  	(57000 - 66000 @ 2160), (43), NO-OUTDOOR

If the firmware (or the BDF) is shipped with these rules then there is only
a 10 MHz overlap with the weather radar:

* below: 5470 - 5590
* weather radar: 5590 - 5600
* above: (none for the rule "5470 - 5600 @ 80")

There are several wrong assumption in the ath11k code:

* there is always a valid range below the weather radar
  (actually: there could be no range below the weather radar range OR range
   could be smaller than 20 MHz)
* intersected range in the weather radar range is valid
  (actually: the range could be smaller than 20 MHz)
* range above weather radar is either empty or valid
  (actually: the range could be smaller than 20 MHz)

These wrong assumption will lead in this example to a rule

  (5590 - 5600 @ 20), (N/A, 27), (600000 ms), DFS, AUTO-BW

which is invalid according to is_valid_reg_rule() because the freq_diff is
only 10 MHz but the max_bandwidth is set to 20 MHz. Which results in a
rejection like:

  WARNING: at backports-20210222_001-4.4.60-b157d2276/net/wireless/reg.c:3984
  [...]
  Call trace:
  [<ffffffbffc3d2e50>] reg_get_max_bandwidth+0x300/0x3a8 [cfg80211]
  [<ffffffbffc3d3d0c>] regulatory_set_wiphy_regd_sync+0x3c/0x98 [cfg80211]
  [<ffffffbffc651598>] ath11k_regd_update+0x1a8/0x210 [ath11k]
  [<ffffffbffc652108>] ath11k_regd_update_work+0x18/0x20 [ath11k]
  [<ffffffc0000a93e0>] process_one_work+0x1f8/0x340
  [<ffffffc0000a9784>] worker_thread+0x25c/0x448
  [<ffffffc0000aedc8>] kthread+0xd0/0xd8
  [<ffffffc000085550>] ret_from_fork+0x10/0x40
  ath11k c000000.wifi: failed to perform regd update : -22
  Invalid regulatory domain detected

To avoid this, the algorithm has to be changed slightly. Instead of
splitting a rule which overlaps with the weather radar range into 3 pieces
and accepting the first two parts blindly, it must actually be checked for
each piece whether it is a valid range. And only if it is valid, add it to
the output array.

When these checks are in place, the processed rules for AU would end up as

  country AU: DFS-ETSI
          (2400 - 2483 @ 40), (N/A, 36), (N/A)
          (5150 - 5250 @ 80), (6, 23), (N/A), NO-OUTDOOR, AUTO-BW
          (5250 - 5350 @ 80), (6, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
          (5470 - 5590 @ 80), (6, 27), (0 ms), DFS, AUTO-BW
          (5650 - 5730 @ 80), (6, 27), (0 ms), DFS, AUTO-BW
          (5730 - 5850 @ 80), (6, 36), (N/A), AUTO-BW

and will be accepted by the wireless regulatory code.

Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211112153116.1214421-1-sven@narfation.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/reg.c | 103 ++++++++++++++------------
 1 file changed, 56 insertions(+), 47 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/reg.c b/drivers/net/wireless/ath/ath11k/reg.c
index b8f9f34408879..e34311516b958 100644
--- a/drivers/net/wireless/ath/ath11k/reg.c
+++ b/drivers/net/wireless/ath/ath11k/reg.c
@@ -456,6 +456,9 @@ ath11k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw)
 {
 	u16 bw;
 
+	if (end_freq <= start_freq)
+		return 0;
+
 	bw = end_freq - start_freq;
 	bw = min_t(u16, bw, max_bw);
 
@@ -463,8 +466,10 @@ ath11k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw)
 		bw = 80;
 	else if (bw >= 40 && bw < 80)
 		bw = 40;
-	else if (bw < 40)
+	else if (bw >= 20 && bw < 40)
 		bw = 20;
+	else
+		bw = 0;
 
 	return bw;
 }
@@ -488,73 +493,77 @@ ath11k_reg_update_weather_radar_band(struct ath11k_base *ab,
 				     struct cur_reg_rule *reg_rule,
 				     u8 *rule_idx, u32 flags, u16 max_bw)
 {
+	u32 start_freq;
 	u32 end_freq;
 	u16 bw;
 	u8 i;
 
 	i = *rule_idx;
 
+	/* there might be situations when even the input rule must be dropped */
+	i--;
+
+	/* frequencies below weather radar */
 	bw = ath11k_reg_adjust_bw(reg_rule->start_freq,
 				  ETSI_WEATHER_RADAR_BAND_LOW, max_bw);
+	if (bw > 0) {
+		i++;
 
-	ath11k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq,
-			       ETSI_WEATHER_RADAR_BAND_LOW, bw,
-			       reg_rule->ant_gain, reg_rule->reg_power,
-			       flags);
+		ath11k_reg_update_rule(regd->reg_rules + i,
+				       reg_rule->start_freq,
+				       ETSI_WEATHER_RADAR_BAND_LOW, bw,
+				       reg_rule->ant_gain, reg_rule->reg_power,
+				       flags);
 
-	ath11k_dbg(ab, ATH11K_DBG_REG,
-		   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
-		   i + 1, reg_rule->start_freq, ETSI_WEATHER_RADAR_BAND_LOW,
-		   bw, reg_rule->ant_gain, reg_rule->reg_power,
-		   regd->reg_rules[i].dfs_cac_ms,
-		   flags);
-
-	if (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_HIGH)
-		end_freq = ETSI_WEATHER_RADAR_BAND_HIGH;
-	else
-		end_freq = reg_rule->end_freq;
+		ath11k_dbg(ab, ATH11K_DBG_REG,
+			   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
+			   i + 1, reg_rule->start_freq,
+			   ETSI_WEATHER_RADAR_BAND_LOW, bw, reg_rule->ant_gain,
+			   reg_rule->reg_power, regd->reg_rules[i].dfs_cac_ms,
+			   flags);
+	}
 
-	bw = ath11k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_LOW, end_freq,
-				  max_bw);
+	/* weather radar frequencies */
+	start_freq = max_t(u32, reg_rule->start_freq,
+			   ETSI_WEATHER_RADAR_BAND_LOW);
+	end_freq = min_t(u32, reg_rule->end_freq, ETSI_WEATHER_RADAR_BAND_HIGH);
 
-	i++;
+	bw = ath11k_reg_adjust_bw(start_freq, end_freq, max_bw);
+	if (bw > 0) {
+		i++;
 
-	ath11k_reg_update_rule(regd->reg_rules + i,
-			       ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw,
-			       reg_rule->ant_gain, reg_rule->reg_power,
-			       flags);
+		ath11k_reg_update_rule(regd->reg_rules + i, start_freq,
+				       end_freq, bw, reg_rule->ant_gain,
+				       reg_rule->reg_power, flags);
 
-	regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT;
+		regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT;
 
-	ath11k_dbg(ab, ATH11K_DBG_REG,
-		   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
-		   i + 1, ETSI_WEATHER_RADAR_BAND_LOW, end_freq,
-		   bw, reg_rule->ant_gain, reg_rule->reg_power,
-		   regd->reg_rules[i].dfs_cac_ms,
-		   flags);
-
-	if (end_freq == reg_rule->end_freq) {
-		regd->n_reg_rules--;
-		*rule_idx = i;
-		return;
+		ath11k_dbg(ab, ATH11K_DBG_REG,
+			   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
+			   i + 1, start_freq, end_freq, bw,
+			   reg_rule->ant_gain, reg_rule->reg_power,
+			   regd->reg_rules[i].dfs_cac_ms, flags);
 	}
 
+	/* frequencies above weather radar */
 	bw = ath11k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH,
 				  reg_rule->end_freq, max_bw);
+	if (bw > 0) {
+		i++;
 
-	i++;
-
-	ath11k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH,
-			       reg_rule->end_freq, bw,
-			       reg_rule->ant_gain, reg_rule->reg_power,
-			       flags);
+		ath11k_reg_update_rule(regd->reg_rules + i,
+				       ETSI_WEATHER_RADAR_BAND_HIGH,
+				       reg_rule->end_freq, bw,
+				       reg_rule->ant_gain, reg_rule->reg_power,
+				       flags);
 
-	ath11k_dbg(ab, ATH11K_DBG_REG,
-		   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
-		   i + 1, ETSI_WEATHER_RADAR_BAND_HIGH, reg_rule->end_freq,
-		   bw, reg_rule->ant_gain, reg_rule->reg_power,
-		   regd->reg_rules[i].dfs_cac_ms,
-		   flags);
+		ath11k_dbg(ab, ATH11K_DBG_REG,
+			   "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
+			   i + 1, ETSI_WEATHER_RADAR_BAND_HIGH,
+			   reg_rule->end_freq, bw, reg_rule->ant_gain,
+			   reg_rule->reg_power, regd->reg_rules[i].dfs_cac_ms,
+			   flags);
+	}
 
 	*rule_idx = i;
 }
-- 
GitLab


From fa51addd391d9ce9950437e6e1cafd05bcc2f114 Mon Sep 17 00:00:00 2001
From: Karthikeyan Kathirvel <kathirve@codeaurora.org>
Date: Mon, 15 Nov 2021 11:04:40 +0100
Subject: [PATCH 2956/4878] ath11k: clear the keys properly via DISABLE_KEY

[ Upstream commit 436a4e88659842a7cf634d7cc088c8f2cc94ebf5 ]

DISABLE_KEY sets the key_len to 0, firmware will not delete the keys if
key_len is 0. Changing from security mode to open mode will cause mcast
to be still encrypted without vdev restart.

Set the proper key_len for DISABLE_KEY cmd to clear the keys in
firmware.

Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Karthikeyan Kathirvel <kathirve@codeaurora.org>
[sven@narfation.org: split into separate patches, clean up commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211115100441.33771-1-sven@narfation.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 4 +---
 drivers/net/wireless/ath/ath11k/wmi.c | 3 ++-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 0924bc8b35205..304e158f09751 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2395,9 +2395,7 @@ static int ath11k_install_key(struct ath11k_vif *arvif,
 		return 0;
 
 	if (cmd == DISABLE_KEY) {
-		/* TODO: Check if FW expects  value other than NONE for del */
-		/* arg.key_cipher = WMI_CIPHER_NONE; */
-		arg.key_len = 0;
+		arg.key_cipher = WMI_CIPHER_NONE;
 		arg.key_data = NULL;
 		goto install;
 	}
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index e84127165d858..acf1641ce88fd 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1665,7 +1665,8 @@ int ath11k_wmi_vdev_install_key(struct ath11k *ar,
 	tlv = (struct wmi_tlv *)(skb->data + sizeof(*cmd));
 	tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) |
 		      FIELD_PREP(WMI_TLV_LEN, key_len_aligned);
-	memcpy(tlv->value, (u8 *)arg->key_data, key_len_aligned);
+	if (arg->key_data)
+		memcpy(tlv->value, (u8 *)arg->key_data, key_len_aligned);
 
 	ret = ath11k_wmi_cmd_send(wmi, skb, WMI_VDEV_INSTALL_KEY_CMDID);
 	if (ret) {
-- 
GitLab


From 097e601eb88728742a93a1b1c2b23e93190ac5e8 Mon Sep 17 00:00:00 2001
From: Karthikeyan Kathirvel <kathirve@codeaurora.org>
Date: Mon, 15 Nov 2021 11:04:41 +0100
Subject: [PATCH 2957/4878] ath11k: reset RSN/WPA present state for open BSS

[ Upstream commit 64bc3aa02ae78b1fcb1b850e0eb1f0622002bfaa ]

The ath11k driver is caching the information about RSN/WPA IE in the
configured beacon template. The cached information is used during
associations to figure out whether 4-way PKT/2-way GTK peer flags need to
be set or not.

But the code never cleared the state when no such IE was found. This can
for example happen when moving from an WPA/RSN to an open setup. The
(seemingly connected) peer was then not able to communicate over the
link because the firmware assumed a different (encryption enabled) state
for the peer.

Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: 01e34233c645 ("ath11k: fix wmi peer flags in peer assoc command")
Cc: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Karthikeyan Kathirvel <kathirve@codeaurora.org>
[sven@narfation.org: split into separate patches, clean up commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211115100441.33771-2-sven@narfation.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 304e158f09751..b4f8494e3c707 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -792,11 +792,15 @@ static int ath11k_mac_setup_bcn_tmpl(struct ath11k_vif *arvif)
 
 	if (cfg80211_find_ie(WLAN_EID_RSN, ies, (skb_tail_pointer(bcn) - ies)))
 		arvif->rsnie_present = true;
+	else
+		arvif->rsnie_present = false;
 
 	if (cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
 				    WLAN_OUI_TYPE_MICROSOFT_WPA,
 				    ies, (skb_tail_pointer(bcn) - ies)))
 		arvif->wpaie_present = true;
+	else
+		arvif->wpaie_present = false;
 
 	ret = ath11k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
 
-- 
GitLab


From 0d7c5d10e7db1cc9dd2d5cdcfefd40dcf60c039f Mon Sep 17 00:00:00 2001
From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Tue, 15 Jun 2021 22:23:50 +0200
Subject: [PATCH 2958/4878] tee: fix put order in teedev_close_context()

[ Upstream commit f18397ab3ae23e8e43bba9986e66af6d4497f2ad ]

Prior to this patch was teedev_close_context() calling tee_device_put()
before teedev_ctx_put() leading to teedev_ctx_release() accessing
ctx->teedev just after the reference counter was decreased on the
teedev. Fix this by calling teedev_ctx_put() before tee_device_put().

Fixes: 217e0250cccb ("tee: use reference counting for tee_context")
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tee/tee_core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index 6ade4a5c48407..dfc239c64ce3c 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -98,8 +98,10 @@ void teedev_ctx_put(struct tee_context *ctx)
 
 static void teedev_close_context(struct tee_context *ctx)
 {
-	tee_device_put(ctx->teedev);
+	struct tee_device *teedev = ctx->teedev;
+
 	teedev_ctx_put(ctx);
+	tee_device_put(teedev);
 }
 
 static int tee_open(struct inode *inode, struct file *filp)
-- 
GitLab


From 43220a61e7b8de21bf7e6742f12ec480552d9d84 Mon Sep 17 00:00:00 2001
From: Alexander Aring <aahringo@redhat.com>
Date: Wed, 17 Nov 2021 09:20:43 -0500
Subject: [PATCH 2959/4878] fs: dlm: fix build with CONFIG_IPV6 disabled

[ Upstream commit 1b9beda83e27a0c2cd75d1cb743c297c7b36c844 ]

This patch will surround the AF_INET6 case in sk_error_report() of dlm
with a #if IS_ENABLED(CONFIG_IPV6). The field sk->sk_v6_daddr is not
defined when CONFIG_IPV6 is disabled. If CONFIG_IPV6 is disabled, the
socket creation with AF_INET6 should already fail because a runtime
check if AF_INET6 is registered. However if there is the possibility
that AF_INET6 is set as sk_family the sk_error_report() callback will
print then an invalid family type error.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 4c3d90570bcc ("fs: dlm: don't call kernel_getpeername() in error_report()")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/lowcomms.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 904855fa20655..68b765369c928 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -491,6 +491,7 @@ static void lowcomms_error_report(struct sock *sk)
 				   ntohs(inet->inet_dport), sk->sk_err,
 				   sk->sk_err_soft);
 		break;
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
 				   "sending to node %d at %pI6c, "
@@ -499,6 +500,7 @@ static void lowcomms_error_report(struct sock *sk)
 				   ntohs(inet->inet_dport), sk->sk_err,
 				   sk->sk_err_soft);
 		break;
+#endif
 	default:
 		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
 				   "invalid socket family %d set, "
-- 
GitLab


From a33eef23a658d1120b2b7b724c80b0cad3da9b78 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 18 Nov 2021 14:12:33 +0300
Subject: [PATCH 2960/4878] drm/vboxvideo: fix a NULL vs IS_ERR() check

[ Upstream commit cebbb5c46d0cb0615fd0c62dea9b44273d0a9780 ]

The devm_gen_pool_create() function never returns NULL, it returns
error pointers.

Fixes: 4cc9b565454b ("drm/vboxvideo: Use devm_gen_pool_create")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211118111233.GA1147@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vboxvideo/vbox_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
index d68d9bad76747..c5ea880d17b29 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_main.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
@@ -123,8 +123,8 @@ int vbox_hw_init(struct vbox_private *vbox)
 	/* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
 	vbox->guest_pool = devm_gen_pool_create(vbox->ddev.dev, 4, -1,
 						"vboxvideo-accel");
-	if (!vbox->guest_pool)
-		return -ENOMEM;
+	if (IS_ERR(vbox->guest_pool))
+		return PTR_ERR(vbox->guest_pool);
 
 	ret = gen_pool_add_virt(vbox->guest_pool,
 				(unsigned long)vbox->guest_heap,
-- 
GitLab


From 1d64e2bd22223abbe7af60f708b5c73db312cae1 Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Mon, 15 Nov 2021 14:28:30 +0000
Subject: [PATCH 2961/4878] arm64: dts: renesas: cat875: Add rx/tx delays

[ Upstream commit e1a9faddffe7e555304dc2e3284c84fbee0679ee ]

The CAT875 sub board from Silicon Linux uses a Realtek PHY.

The phy driver commit bbc4d71d63549bcd003 ("net: phy: realtek: fix
rtl8211e rx/tx delay config") introduced NFS mount failures.  Now it
needs both rx/tx delays for the NFS mount to work.

This patch fixes the NFS mount failure issue by adding "rgmii-id" mode
to the avb device node.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Fixes: bbc4d71d63549bcd ("net: phy: realtek: fix rtl8211e rx/tx delay config")
Link: https://lore.kernel.org/r/20211115142830.12651-1-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/renesas/cat875.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/renesas/cat875.dtsi b/arch/arm64/boot/dts/renesas/cat875.dtsi
index 801ea54b027c4..20f8adc635e72 100644
--- a/arch/arm64/boot/dts/renesas/cat875.dtsi
+++ b/arch/arm64/boot/dts/renesas/cat875.dtsi
@@ -18,6 +18,7 @@
 	pinctrl-names = "default";
 	renesas,no-ether-link;
 	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
 	status = "okay";
 
 	phy0: ethernet-phy@0 {
-- 
GitLab


From 5de640f59f992c06f8b785f81b975cfd16e58716 Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Fri, 15 Oct 2021 16:57:41 +0800
Subject: [PATCH 2962/4878] media: dmxdev: fix UAF when dvb_register_device()
 fails

[ Upstream commit ab599eb11882f834951c436cc080c3455ba32b9b ]

I got a use-after-free report:

dvbdev: dvb_register_device: failed to create device dvb1.dvr0 (-12)
...
==================================================================
BUG: KASAN: use-after-free in dvb_dmxdev_release+0xce/0x2f0
...
Call Trace:
 dump_stack_lvl+0x6c/0x8b
 print_address_description.constprop.0+0x48/0x70
 kasan_report.cold+0x82/0xdb
 __asan_load4+0x6b/0x90
 dvb_dmxdev_release+0xce/0x2f0
...
Allocated by task 7666:
 kasan_save_stack+0x23/0x50
 __kasan_kmalloc+0x83/0xa0
 kmem_cache_alloc_trace+0x22e/0x470
 dvb_register_device+0x12f/0x980
 dvb_dmxdev_init+0x1f3/0x230
...
Freed by task 7666:
 kasan_save_stack+0x23/0x50
 kasan_set_track+0x20/0x30
 kasan_set_free_info+0x24/0x40
 __kasan_slab_free+0xf2/0x130
 kfree+0xd1/0x5c0
 dvb_register_device.cold+0x1ac/0x1fa
 dvb_dmxdev_init+0x1f3/0x230
...

When dvb_register_device() in dvb_dmxdev_init() fails, dvb_dmxdev_init()
does not return a failure, and the memory pointed to by dvbdev or
dvr_dvbdev is invalid at this point. If they are used subsequently, it
will result in UFA or null-ptr-deref.

If dvb_register_device() in dvb_dmxdev_init() fails, fix the bug by making
dvb_dmxdev_init() return an error as well.

Link: https://lore.kernel.org/linux-media/20211015085741.1203283-1-wanghai38@huawei.com

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/dvb-core/dmxdev.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index f14a872d12687..e58cb8434dafe 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -1413,7 +1413,7 @@ static const struct dvb_device dvbdev_dvr = {
 };
 int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
 {
-	int i;
+	int i, ret;
 
 	if (dmxdev->demux->open(dmxdev->demux) < 0)
 		return -EUSERS;
@@ -1432,14 +1432,26 @@ int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
 					    DMXDEV_STATE_FREE);
 	}
 
-	dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
+	ret = dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
 			    DVB_DEVICE_DEMUX, dmxdev->filternum);
-	dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
+	if (ret < 0)
+		goto err_register_dvbdev;
+
+	ret = dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
 			    dmxdev, DVB_DEVICE_DVR, dmxdev->filternum);
+	if (ret < 0)
+		goto err_register_dvr_dvbdev;
 
 	dvb_ringbuffer_init(&dmxdev->dvr_buffer, NULL, 8192);
 
 	return 0;
+
+err_register_dvr_dvbdev:
+	dvb_unregister_device(dmxdev->dvbdev);
+err_register_dvbdev:
+	vfree(dmxdev->filter);
+	dmxdev->filter = NULL;
+	return ret;
 }
 
 EXPORT_SYMBOL(dvb_dmxdev_init);
-- 
GitLab


From e19b3c1b5768f0e2eccc7c9eb7ccaf938be2af11 Mon Sep 17 00:00:00 2001
From: Chengfeng Ye <cyeaa@connect.ust.hk>
Date: Thu, 4 Nov 2021 06:38:31 -0700
Subject: [PATCH 2963/4878] crypto: qce - fix uaf on qce_ahash_register_one

[ Upstream commit b4cb4d31631912842eb7dce02b4350cbb7562d5e ]

Pointer base points to sub field of tmpl, it
is dereferenced after tmpl is freed. Fix
this by accessing base before free tmpl.

Fixes: ec8f5d8f ("crypto: qce - Qualcomm crypto engine driver")
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qce/sha.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index 87be96a0b0bba..8b4e79d882af4 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c
@@ -533,8 +533,8 @@ static int qce_ahash_register_one(const struct qce_ahash_def *def,
 
 	ret = crypto_register_ahash(alg);
 	if (ret) {
-		kfree(tmpl);
 		dev_err(qce->dev, "%s registration failed\n", base->cra_name);
+		kfree(tmpl);
 		return ret;
 	}
 
-- 
GitLab


From 867d4ace48da2c117bed8599efa23456378bf8f5 Mon Sep 17 00:00:00 2001
From: Chengfeng Ye <cyeaa@connect.ust.hk>
Date: Thu, 4 Nov 2021 06:46:42 -0700
Subject: [PATCH 2964/4878] crypto: qce - fix uaf on qce_skcipher_register_one

[ Upstream commit e9c195aaeed1b45c9012adbe29dedb6031e85aa8 ]

Pointer alg points to sub field of tmpl, it
is dereferenced after tmpl is freed. Fix
this by accessing alg before free tmpl.

Fixes: ec8f5d8f ("crypto: qce - Qualcomm crypto engine driver")
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qce/skcipher.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c
index d8053789c8828..89c7fc3efbd71 100644
--- a/drivers/crypto/qce/skcipher.c
+++ b/drivers/crypto/qce/skcipher.c
@@ -433,8 +433,8 @@ static int qce_skcipher_register_one(const struct qce_skcipher_def *def,
 
 	ret = crypto_register_skcipher(alg);
 	if (ret) {
-		kfree(tmpl);
 		dev_err(qce->dev, "%s registration failed\n", alg->base.cra_name);
+		kfree(tmpl);
 		return ret;
 	}
 
-- 
GitLab


From eab4204588a03537dd2bf510f61d0eb133254ed4 Mon Sep 17 00:00:00 2001
From: "George G. Davis" <davis.george@siemens.com>
Date: Fri, 16 Jul 2021 16:49:35 -0400
Subject: [PATCH 2965/4878] mtd: hyperbus: rpc-if: fix bug in rpcif_hb_remove

[ Upstream commit baaf965f94308301d2dc554d72a87d7432cd5ce6 ]

The following KASAN BUG is observed when testing the rpc-if driver on
rcar-gen3:

root@rcar-gen3:~# modprobe -r rpc-if
[  101.930146] ==================================================================
[  101.937408] BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x518/0x25d0
[  101.944240] Read of size 8 at addr ffff0004c5be2750 by task modprobe/664
[  101.950959]
[  101.952466] CPU: 2 PID: 664 Comm: modprobe Not tainted 5.14.0-rc1-00342-g1a1464d7aa31 #1
[  101.960578] Hardware name: Renesas H3ULCB board based on r8a77951 (DT)
[  101.967120] Call trace:
[  101.969580]  dump_backtrace+0x0/0x2c0
[  101.973275]  show_stack+0x1c/0x30
[  101.976616]  dump_stack_lvl+0x9c/0xd8
[  101.980301]  print_address_description.constprop.0+0x74/0x2b8
[  101.986071]  kasan_report+0x1f4/0x26c
[  101.989757]  __asan_load8+0x98/0xd4
[  101.993266]  __lock_acquire+0x518/0x25d0
[  101.997215]  lock_acquire.part.0+0x18c/0x360
[  102.001506]  lock_acquire+0x74/0x90
[  102.005013]  _raw_spin_lock_irq+0x98/0x130
[  102.009131]  __pm_runtime_disable+0x30/0x210
[  102.013427]  rpcif_hb_remove+0x5c/0x70 [rpc_if]
[  102.018001]  platform_remove+0x40/0x80
[  102.021771]  __device_release_driver+0x234/0x350
[  102.026412]  driver_detach+0x158/0x20c
[  102.030179]  bus_remove_driver+0xa0/0x140
[  102.034212]  driver_unregister+0x48/0x80
[  102.038153]  platform_driver_unregister+0x18/0x24
[  102.042879]  rpcif_platform_driver_exit+0x1c/0x34 [rpc_if]
[  102.048400]  __arm64_sys_delete_module+0x210/0x310
[  102.053212]  invoke_syscall+0x60/0x190
[  102.056986]  el0_svc_common+0x12c/0x144
[  102.060844]  do_el0_svc+0x88/0xac
[  102.064181]  el0_svc+0x24/0x3c
[  102.067257]  el0t_64_sync_handler+0x1a8/0x1b0
[  102.071634]  el0t_64_sync+0x198/0x19c
[  102.075315]
[  102.076815] Allocated by task 628:
[  102.080781]
[  102.082280] Last potentially related work creation:
[  102.087524]
[  102.089022] The buggy address belongs to the object at ffff0004c5be2000
[  102.089022]  which belongs to the cache kmalloc-2k of size 2048
[  102.101555] The buggy address is located 1872 bytes inside of
[  102.101555]  2048-byte region [ffff0004c5be2000, ffff0004c5be2800)
[  102.113486] The buggy address belongs to the page:
[  102.118409]
[  102.119908] Memory state around the buggy address:
[  102.124711]  ffff0004c5be2600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  102.131947]  ffff0004c5be2680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  102.139181] >ffff0004c5be2700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  102.146412]                                                  ^
[  102.152257]  ffff0004c5be2780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  102.159491]  ffff0004c5be2800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[  102.166723] ==================================================================

The above bug is caused by use of the wrong pointer in the
rpcif_disable_rpm() call. Fix the bug by using the correct pointer.

Fixes: 5de15b610f78 ("mtd: hyperbus: add Renesas RPC-IF driver")
Signed-off-by: George G. Davis <davis.george@siemens.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20210716204935.25859-1-george_davis@mentor.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/hyperbus/rpc-if.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/hyperbus/rpc-if.c b/drivers/mtd/hyperbus/rpc-if.c
index 367b0d72bf622..dc164c18f8429 100644
--- a/drivers/mtd/hyperbus/rpc-if.c
+++ b/drivers/mtd/hyperbus/rpc-if.c
@@ -152,9 +152,9 @@ static int rpcif_hb_remove(struct platform_device *pdev)
 {
 	struct rpcif_hyperbus *hyperbus = platform_get_drvdata(pdev);
 	int error = hyperbus_unregister_device(&hyperbus->hbdev);
-	struct rpcif *rpc = dev_get_drvdata(pdev->dev.parent);
 
-	rpcif_disable_rpm(rpc);
+	rpcif_disable_rpm(&hyperbus->rpc);
+
 	return error;
 }
 
-- 
GitLab


From ae766527e6b7cf9f92f4d65cf89fa705e57078c8 Mon Sep 17 00:00:00 2001
From: Dillon Min <dillon.minfei@gmail.com>
Date: Sat, 24 Jul 2021 11:44:02 +0800
Subject: [PATCH 2966/4878] ARM: dts: stm32: fix dtbs_check warning on ili9341
 dts binding on stm32f429 disco

[ Upstream commit b046049e59dca5e5830dc75ed16acf7657a95161 ]

Since the compatible string defined from ilitek,ili9341.yaml is
"st,sf-tc240t-9370-t", "ilitek,ili9341"

so, append "ilitek,ili9341" to avoid the below dtbs_check warning.

arch/arm/boot/dts/stm32f429-disco.dt.yaml: display@1: compatible:
['st,sf-tc240t-9370-t'] is too short

Fixes: a726e2f000ec ("ARM: dts: stm32: enable ltdc binding with ili9341, gyro l3gd20 on stm32429-disco board")
Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/stm32f429-disco.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 075ac57d0bf4a..6435e099c6326 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -192,7 +192,7 @@
 
 	display: display@1{
 		/* Connect panel-ilitek-9341 to ltdc */
-		compatible = "st,sf-tc240t-9370-t";
+		compatible = "st,sf-tc240t-9370-t", "ilitek,ili9341";
 		reg = <1>;
 		spi-3wire;
 		spi-max-frequency = <10000000>;
-- 
GitLab


From 472f76835200e72ebfc820a1a98023e6da03ab0e Mon Sep 17 00:00:00 2001
From: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Date: Tue, 9 Feb 2021 10:28:55 +0000
Subject: [PATCH 2967/4878] crypto: qat - fix spelling mistake: "messge" ->
 "message"

[ Upstream commit f17a25cb1776c5712e950aaf326528ae652a086c ]

Trivial fix to spelling mistake in adf_pf2vf_msg.c and adf_vf2pf_msg.c.
s/messge/message/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 2 +-
 drivers/crypto/qat/qat_common/adf_vf2pf_msg.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index d7ca222f0df18..e3da97286980e 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -176,7 +176,7 @@ out:
  * @msg:	Message to send
  * @vf_nr:	VF number to which the message will be sent
  *
- * Function sends a messge from the PF to a VF
+ * Function sends a message from the PF to a VF
  *
  * Return: 0 on success, error code otherwise.
  */
diff --git a/drivers/crypto/qat/qat_common/adf_vf2pf_msg.c b/drivers/crypto/qat/qat_common/adf_vf2pf_msg.c
index 54b738da829d8..3e25fac051b25 100644
--- a/drivers/crypto/qat/qat_common/adf_vf2pf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_vf2pf_msg.c
@@ -8,7 +8,7 @@
  * adf_vf2pf_notify_init() - send init msg to PF
  * @accel_dev:  Pointer to acceleration VF device.
  *
- * Function sends an init messge from the VF to a PF
+ * Function sends an init message from the VF to a PF
  *
  * Return: 0 on success, error code otherwise.
  */
@@ -31,7 +31,7 @@ EXPORT_SYMBOL_GPL(adf_vf2pf_notify_init);
  * adf_vf2pf_notify_shutdown() - send shutdown msg to PF
  * @accel_dev:  Pointer to acceleration VF device.
  *
- * Function sends a shutdown messge from the VF to a PF
+ * Function sends a shutdown message from the VF to a PF
  *
  * Return: void
  */
-- 
GitLab


From ee1c74c3c9c27fd64f4dc8f8e26f6aa5c2132c5e Mon Sep 17 00:00:00 2001
From: Marco Chiappero <marco.chiappero@intel.com>
Date: Tue, 28 Sep 2021 12:44:31 +0100
Subject: [PATCH 2968/4878] crypto: qat - remove unnecessary collision
 prevention step in PFVF

[ Upstream commit e17f49bb244a281fe39bfdad0306a38b3a02e7bf ]

The initial version of the PFVF protocol included an initial "carrier
sensing" to get ownership of the channel.

Collisions can happen anyway, the extra wait and test does not prevent
collisions, it instead slows the communication down, so remove it.

Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 20 +------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index e3da97286980e..d1dbf6216de57 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -120,28 +120,10 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 		goto out;
 	}
 
-	/* Attempt to get ownership of PF2VF CSR */
 	msg &= ~local_in_use_mask;
 	msg |= local_in_use_pattern;
-	ADF_CSR_WR(pmisc_bar_addr, pf2vf_offset, msg);
 
-	/* Wait in case remote func also attempting to get ownership */
-	msleep(ADF_IOV_MSG_COLLISION_DETECT_DELAY);
-
-	val = ADF_CSR_RD(pmisc_bar_addr, pf2vf_offset);
-	if ((val & local_in_use_mask) != local_in_use_pattern) {
-		dev_dbg(&GET_DEV(accel_dev),
-			"PF2VF CSR in use by remote - collision detected\n");
-		ret = -EBUSY;
-		goto out;
-	}
-
-	/*
-	 * This function now owns the PV2VF CSR.  The IN_USE_BY pattern must
-	 * remain in the PF2VF CSR for all writes including ACK from remote
-	 * until this local function relinquishes the CSR.  Send the message
-	 * by interrupting the remote.
-	 */
+	/* Attempt to get ownership of the PF2VF CSR */
 	ADF_CSR_WR(pmisc_bar_addr, pf2vf_offset, msg | int_bit);
 
 	/* Wait for confirmation from remote func it received the message */
-- 
GitLab


From 475ac5c5653f5b810fec8abd6bb2d659d0c35c79 Mon Sep 17 00:00:00 2001
From: Marco Chiappero <marco.chiappero@intel.com>
Date: Tue, 28 Sep 2021 12:44:35 +0100
Subject: [PATCH 2969/4878] crypto: qat - make pfvf send message direction
 agnostic

[ Upstream commit 6e680f94bc31d0fd0ff01123c964d895ea8040fa ]

The functions adf_iov_putmsg() and __adf_iov_putmsg() are shared by both
PF and VF. Any logging or documentation should not refer to any specific
direction.

Make comments and log messages direction agnostic by replacing PF2VF
with PFVF. Also fix the wording for some related comments.

Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Co-developed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index d1dbf6216de57..7b34273d18937 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -111,11 +111,11 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 
 	mutex_lock(lock);
 
-	/* Check if PF2VF CSR is in use by remote function */
+	/* Check if the PFVF CSR is in use by remote function */
 	val = ADF_CSR_RD(pmisc_bar_addr, pf2vf_offset);
 	if ((val & remote_in_use_mask) == remote_in_use_pattern) {
 		dev_dbg(&GET_DEV(accel_dev),
-			"PF2VF CSR in use by remote function\n");
+			"PFVF CSR in use by remote function\n");
 		ret = -EBUSY;
 		goto out;
 	}
@@ -123,7 +123,7 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 	msg &= ~local_in_use_mask;
 	msg |= local_in_use_pattern;
 
-	/* Attempt to get ownership of the PF2VF CSR */
+	/* Attempt to get ownership of the PFVF CSR */
 	ADF_CSR_WR(pmisc_bar_addr, pf2vf_offset, msg | int_bit);
 
 	/* Wait for confirmation from remote func it received the message */
@@ -145,7 +145,7 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 		ret = -EIO;
 	}
 
-	/* Finished with PF2VF CSR; relinquish it and leave msg in CSR */
+	/* Finished with the PFVF CSR; relinquish it and leave msg in CSR */
 	ADF_CSR_WR(pmisc_bar_addr, pf2vf_offset, val & ~local_in_use_mask);
 out:
 	mutex_unlock(lock);
@@ -153,12 +153,13 @@ out:
 }
 
 /**
- * adf_iov_putmsg() - send PF2VF message
+ * adf_iov_putmsg() - send PFVF message
  * @accel_dev:  Pointer to acceleration device.
  * @msg:	Message to send
- * @vf_nr:	VF number to which the message will be sent
+ * @vf_nr:	VF number to which the message will be sent if on PF, ignored
+ *		otherwise
  *
- * Function sends a message from the PF to a VF
+ * Function sends a message through the PFVF channel
  *
  * Return: 0 on success, error code otherwise.
  */
-- 
GitLab


From 6a49acfacab5695108ff886a0411190ef5786a97 Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Date: Wed, 17 Nov 2021 14:30:35 +0000
Subject: [PATCH 2970/4878] crypto: qat - fix undetected PFVF timeout in ACK
 loop

[ Upstream commit 5002200b4fedd7e90e4fbc2e5c42a4b3351df814 ]

If the remote function did not ACK the reception of a message, the
function __adf_iov_putmsg() could detect it as a collision.

This was due to the fact that the collision and the timeout checks after
the ACK loop were in the wrong order. The timeout must be checked at the
end of the loop, so fix by swapping the order of the two checks.

Fixes: 9b768e8a3909 ("crypto: qat - detect PFVF collision after ACK")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Co-developed-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/qat/qat_common/adf_pf2vf_msg.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
index 7b34273d18937..74afafc84c716 100644
--- a/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
+++ b/drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
@@ -132,6 +132,12 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 		val = ADF_CSR_RD(pmisc_bar_addr, pf2vf_offset);
 	} while ((val & int_bit) && (count++ < ADF_IOV_MSG_ACK_MAX_RETRY));
 
+	if (val & int_bit) {
+		dev_dbg(&GET_DEV(accel_dev), "ACK not received from remote\n");
+		val &= ~int_bit;
+		ret = -EIO;
+	}
+
 	if (val != msg) {
 		dev_dbg(&GET_DEV(accel_dev),
 			"Collision - PFVF CSR overwritten by remote function\n");
@@ -139,12 +145,6 @@ static int __adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
 		goto out;
 	}
 
-	if (val & int_bit) {
-		dev_dbg(&GET_DEV(accel_dev), "ACK not received from remote\n");
-		val &= ~int_bit;
-		ret = -EIO;
-	}
-
 	/* Finished with the PFVF CSR; relinquish it and leave msg in CSR */
 	ADF_CSR_WR(pmisc_bar_addr, pf2vf_offset, val & ~local_in_use_mask);
 out:
-- 
GitLab


From 32e9947e6639cfabc0cea8ba3ed8ca57432bfa0c Mon Sep 17 00:00:00 2001
From: Anilkumar Kolli <akolli@codeaurora.org>
Date: Wed, 24 Nov 2021 19:11:31 +0200
Subject: [PATCH 2971/4878] ath11k: Use host CE parameters for CE interrupts
 configuration

[ Upstream commit b689f091aafd1a874b2f88137934276ab0fca480 ]

CE interrupt configuration uses host ce parameters to assign/free
interrupts. Use host ce parameters to enable/disable interrupts.
This patch fixes below BUG,

BUG: KASAN: global-out-of-bounds in 0xffffffbffdfb035c at addr
ffffffbffde6eeac
 Read of size 4 by task kworker/u8:2/132
 Address belongs to variable ath11k_core_qmi_firmware_ready+0x1b0/0x5bc [ath11k]

OOB is due to ath11k_ahb_ce_irqs_enable() iterates ce_count(which is 12)
times and accessing 12th element in target_ce_config
(which has only 11 elements) from ath11k_ahb_ce_irq_enable().

With this change host ce configs are used to enable/disable interrupts.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00471-QCAHKSWPL_SILICONZ-1

Fixes: 967c1d1131fa ("ath11k: move target ce configs to hw_params")
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1637249558-12793-1-git-send-email-akolli@codeaurora.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/ahb.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index 430723c64adce..e8cca58e18ffc 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -206,13 +206,13 @@ static void ath11k_ahb_clearbit32(struct ath11k_base *ab, u8 bit, u32 offset)
 
 static void ath11k_ahb_ce_irq_enable(struct ath11k_base *ab, u16 ce_id)
 {
-	const struct ce_pipe_config *ce_config;
+	const struct ce_attr *ce_attr;
 
-	ce_config = &ab->hw_params.target_ce_config[ce_id];
-	if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_OUT)
+	ce_attr = &ab->hw_params.host_ce_config[ce_id];
+	if (ce_attr->src_nentries)
 		ath11k_ahb_setbit32(ab, ce_id, CE_HOST_IE_ADDRESS);
 
-	if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_IN) {
+	if (ce_attr->dest_nentries) {
 		ath11k_ahb_setbit32(ab, ce_id, CE_HOST_IE_2_ADDRESS);
 		ath11k_ahb_setbit32(ab, ce_id + CE_HOST_IE_3_SHIFT,
 				    CE_HOST_IE_3_ADDRESS);
@@ -221,13 +221,13 @@ static void ath11k_ahb_ce_irq_enable(struct ath11k_base *ab, u16 ce_id)
 
 static void ath11k_ahb_ce_irq_disable(struct ath11k_base *ab, u16 ce_id)
 {
-	const struct ce_pipe_config *ce_config;
+	const struct ce_attr *ce_attr;
 
-	ce_config = &ab->hw_params.target_ce_config[ce_id];
-	if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_OUT)
+	ce_attr = &ab->hw_params.host_ce_config[ce_id];
+	if (ce_attr->src_nentries)
 		ath11k_ahb_clearbit32(ab, ce_id, CE_HOST_IE_ADDRESS);
 
-	if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_IN) {
+	if (ce_attr->dest_nentries) {
 		ath11k_ahb_clearbit32(ab, ce_id, CE_HOST_IE_2_ADDRESS);
 		ath11k_ahb_clearbit32(ab, ce_id + CE_HOST_IE_3_SHIFT,
 				      CE_HOST_IE_3_ADDRESS);
-- 
GitLab


From bd85b2e77aa9c0e51ecdb31511793196d35020cb Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Fri, 12 Nov 2021 14:31:55 +0800
Subject: [PATCH 2972/4878] arm64: dts: ti: k3-j721e: correct cache-sets info

[ Upstream commit 7a0df1f969c14939f60a7f9a6af72adcc314675f ]

A72 Cluster has 48KB Icache, 32KB Dcache and 1MB L2 Cache
 - ICache is 3-way set-associative
 - Dcache is 2-way set-associative
 - Line size are 64bytes

So correct the cache-sets info.

Fixes: 2d87061e70dea ("arm64: dts: ti: Add Support for J721E SoC")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211112063155.3485777-1-peng.fan@oss.nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j721e.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
index cc483f7344af3..d1ef9fbe4981d 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
@@ -61,7 +61,7 @@
 			i-cache-sets = <256>;
 			d-cache-size = <0x8000>;
 			d-cache-line-size = <64>;
-			d-cache-sets = <128>;
+			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
 		};
 
@@ -75,7 +75,7 @@
 			i-cache-sets = <256>;
 			d-cache-size = <0x8000>;
 			d-cache-line-size = <64>;
-			d-cache-sets = <128>;
+			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
 		};
 	};
-- 
GitLab


From 755a6c873b9c2e092ab6055cd116b1d8228ac34b Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Thu, 25 Nov 2021 11:00:17 +0200
Subject: [PATCH 2973/4878] tty: serial: atmel: Check return code of
 dmaengine_submit()

[ Upstream commit 1e67bd2b8cb90b66e89562598e9c2046246832d3 ]

The tx_submit() method of struct dma_async_tx_descriptor is entitled
to do sanity checks and return errors if encountered. It's not the
case for the DMA controller drivers that this client is using
(at_h/xdmac), because they currently don't do sanity checks and always
return a positive cookie at tx_submit() method. In case the controller
drivers will implement sanity checks and return errors, print a message
so that the client will be informed that something went wrong at
tx_submit() level.

Fixes: 08f738be88bb ("serial: at91: add tx dma support")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Link: https://lore.kernel.org/r/20211125090028.786832-3-tudor.ambarus@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/atmel_serial.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index a24e5c2b30bc9..396fe8c51f93b 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1004,6 +1004,11 @@ static void atmel_tx_dma(struct uart_port *port)
 		desc->callback = atmel_complete_tx_dma;
 		desc->callback_param = atmel_port;
 		atmel_port->cookie_tx = dmaengine_submit(desc);
+		if (dma_submit_error(atmel_port->cookie_tx)) {
+			dev_err(port->dev, "dma_submit_error %d\n",
+				atmel_port->cookie_tx);
+			return;
+		}
 	}
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@@ -1264,6 +1269,11 @@ static int atmel_prepare_rx_dma(struct uart_port *port)
 	desc->callback_param = port;
 	atmel_port->desc_rx = desc;
 	atmel_port->cookie_rx = dmaengine_submit(desc);
+	if (dma_submit_error(atmel_port->cookie_rx)) {
+		dev_err(port->dev, "dma_submit_error %d\n",
+			atmel_port->cookie_rx);
+		goto chan_err;
+	}
 
 	return 0;
 
-- 
GitLab


From f93c9aa1d36f594b065c93d8bd17151d21fe02d8 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Thu, 25 Nov 2021 11:00:18 +0200
Subject: [PATCH 2974/4878] tty: serial: atmel: Call dma_async_issue_pending()

[ Upstream commit 4f4b9b5895614eb2e2b5f4cab7858f44bd113e1b ]

The driver wrongly assummed that tx_submit() will start the transfer,
which is not the case, now that the at_xdmac driver is fixed. tx_submit
is supposed to push the current transaction descriptor to a pending queue,
waiting for issue_pending to be called. issue_pending must start the
transfer, not tx_submit.

Fixes: 34df42f59a60 ("serial: at91: add rx dma support")
Fixes: 08f738be88bb ("serial: at91: add tx dma support")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211125090028.786832-4-tudor.ambarus@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/atmel_serial.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 396fe8c51f93b..602065bfc9bb8 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1009,6 +1009,8 @@ static void atmel_tx_dma(struct uart_port *port)
 				atmel_port->cookie_tx);
 			return;
 		}
+
+		dma_async_issue_pending(chan);
 	}
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@@ -1275,6 +1277,8 @@ static int atmel_prepare_rx_dma(struct uart_port *port)
 		goto chan_err;
 	}
 
+	dma_async_issue_pending(atmel_port->chan_rx);
+
 	return 0;
 
 chan_err:
-- 
GitLab


From 46d6a2311409d03c0679b125d9b8aadc3f54e763 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 28 Oct 2021 16:51:37 +0300
Subject: [PATCH 2975/4878] mfd: atmel-flexcom: Remove #ifdef CONFIG_PM_SLEEP

[ Upstream commit 8c0fad75dcaa650e3f3145a2c35847bc6a65cb7f ]

Remove compilation flag and use __maybe_unused and pm_ptr instead.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211028135138.3481166-2-claudiu.beznea@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/atmel-flexcom.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/atmel-flexcom.c b/drivers/mfd/atmel-flexcom.c
index d2f5c073fdf31..962f66dc8813e 100644
--- a/drivers/mfd/atmel-flexcom.c
+++ b/drivers/mfd/atmel-flexcom.c
@@ -87,8 +87,7 @@ static const struct of_device_id atmel_flexcom_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, atmel_flexcom_of_match);
 
-#ifdef CONFIG_PM_SLEEP
-static int atmel_flexcom_resume(struct device *dev)
+static int __maybe_unused atmel_flexcom_resume(struct device *dev)
 {
 	struct atmel_flexcom *ddata = dev_get_drvdata(dev);
 	int err;
@@ -105,7 +104,6 @@ static int atmel_flexcom_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
 static SIMPLE_DEV_PM_OPS(atmel_flexcom_pm_ops, NULL,
 			 atmel_flexcom_resume);
@@ -114,7 +112,7 @@ static struct platform_driver atmel_flexcom_driver = {
 	.probe	= atmel_flexcom_probe,
 	.driver	= {
 		.name		= "atmel_flexcom",
-		.pm		= &atmel_flexcom_pm_ops,
+		.pm		= pm_ptr(&atmel_flexcom_pm_ops),
 		.of_match_table	= atmel_flexcom_of_match,
 	},
 };
-- 
GitLab


From ad52b9890b83ffa7602a23949c2cb0c0d94681e9 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Thu, 28 Oct 2021 16:51:38 +0300
Subject: [PATCH 2976/4878] mfd: atmel-flexcom: Use .resume_noirq

[ Upstream commit 5d051cf94fd5834a1513aa77e542c49fd973988a ]

Flexcom IP embeds 3 other IPs: usart, i2c, spi and selects the operation
mode (usart, i2c, spi) via mode register (FLEX_MR). On i2c bus there might
be connected critical devices (like PMIC) which on suspend/resume should
be suspended/resumed at the end/beginning. i2c uses
.suspend_noirq/.resume_noirq for this kind of purposes. Align flexcom
to use .resume_noirq as it should be resumed before the embedded IPs.
Otherwise the embedded devices might behave badly.

Fixes: 7fdec11015c3 ("atmel_flexcom: Support resuming after a chip reset")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Tested-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211028135138.3481166-3-claudiu.beznea@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/atmel-flexcom.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/atmel-flexcom.c b/drivers/mfd/atmel-flexcom.c
index 962f66dc8813e..559eb4d352b68 100644
--- a/drivers/mfd/atmel-flexcom.c
+++ b/drivers/mfd/atmel-flexcom.c
@@ -87,7 +87,7 @@ static const struct of_device_id atmel_flexcom_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, atmel_flexcom_of_match);
 
-static int __maybe_unused atmel_flexcom_resume(struct device *dev)
+static int __maybe_unused atmel_flexcom_resume_noirq(struct device *dev)
 {
 	struct atmel_flexcom *ddata = dev_get_drvdata(dev);
 	int err;
@@ -105,8 +105,9 @@ static int __maybe_unused atmel_flexcom_resume(struct device *dev)
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(atmel_flexcom_pm_ops, NULL,
-			 atmel_flexcom_resume);
+static const struct dev_pm_ops atmel_flexcom_pm_ops = {
+	.resume_noirq = atmel_flexcom_resume_noirq,
+};
 
 static struct platform_driver atmel_flexcom_driver = {
 	.probe	= atmel_flexcom_probe,
-- 
GitLab


From 621e8ce75d668f12cb76977dcd8666a2ba53079b Mon Sep 17 00:00:00 2001
From: Suresh Udipi <sudipi@jp.adit-jv.com>
Date: Fri, 13 Aug 2021 17:07:54 +0200
Subject: [PATCH 2977/4878] media: rcar-csi2: Correct the selection of
 hsfreqrange
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit cee44d4fbacbbdfe62697ec94e76c6e4f726c5df ]

hsfreqrange should be chosen based on the calculated mbps which
is closer to the default bit rate  and within the range as per
table[1]. But current calculation always selects first value which
is greater than or equal to the calculated mbps which may lead
to chosing a wrong range in some cases.

For example for 360 mbps for H3/M3N
Existing logic selects
Calculated value 360Mbps : Default 400Mbps Range [368.125 -433.125 mbps]

This hsfreqrange is out of range.

The logic is changed to get the default value which is closest to the
calculated value [1]

Calculated value 360Mbps : Default 350Mbps  Range [320.625 -380.625 mpbs]

[1] specs r19uh0105ej0200-r-car-3rd-generation.pdf [Table 25.9]

Please note that According to Renesas in Table 25.9 the range for
220 default value is corrected as below

 |Range (Mbps)     |  Default  Bit rate (Mbps) |
 -----------------------------------------------
 | 197.125-244.125 |     220                   |
 -----------------------------------------------

Fixes: 769afd212b16 ("media: rcar-csi2: add Renesas R-Car MIPI CSI-2 receiver driver")
Signed-off-by: Suresh Udipi <sudipi@jp.adit-jv.com>
Signed-off-by: Kazuyoshi Akiyama <akiyama@nds-osk.co.jp>
Signed-off-by: Michael Rodin <mrodin@de.adit-jv.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/rcar-vin/rcar-csi2.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index d2d87a204e918..6fb8efcb40444 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -436,16 +436,23 @@ static int rcsi2_wait_phy_start(struct rcar_csi2 *priv,
 static int rcsi2_set_phypll(struct rcar_csi2 *priv, unsigned int mbps)
 {
 	const struct rcsi2_mbps_reg *hsfreq;
+	const struct rcsi2_mbps_reg *hsfreq_prev = NULL;
 
-	for (hsfreq = priv->info->hsfreqrange; hsfreq->mbps != 0; hsfreq++)
+	for (hsfreq = priv->info->hsfreqrange; hsfreq->mbps != 0; hsfreq++) {
 		if (hsfreq->mbps >= mbps)
 			break;
+		hsfreq_prev = hsfreq;
+	}
 
 	if (!hsfreq->mbps) {
 		dev_err(priv->dev, "Unsupported PHY speed (%u Mbps)", mbps);
 		return -ERANGE;
 	}
 
+	if (hsfreq_prev &&
+	    ((mbps - hsfreq_prev->mbps) <= (hsfreq->mbps - mbps)))
+		hsfreq = hsfreq_prev;
+
 	rcsi2_write(priv, PHYPLL_REG, PHYPLL_HSFREQRANGE(hsfreq->reg));
 
 	return 0;
-- 
GitLab


From e8d78f924f028a32e53e96cb3010ebd03e49e895 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@denx.de>
Date: Fri, 8 Oct 2021 15:10:14 +0200
Subject: [PATCH 2978/4878] media: imx-pxp: Initialize the spinlock prior to
 using it

[ Upstream commit ed2f97ad4b21072f849cf4ae6645d1f2b1d3f550 ]

After devm_request_threaded_irq() is called there is a chance that an
interrupt may occur before the spinlock is initialized, which will trigger
a kernel oops.

To prevent that, move the initialization of the spinlock prior to
requesting the interrupts.

Fixes: 51abcf7fdb70 ("media: imx-pxp: add i.MX Pixel Pipeline driver")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/imx-pxp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/imx-pxp.c b/drivers/media/platform/imx-pxp.c
index 08d76eb05ed1a..62356adebc39e 100644
--- a/drivers/media/platform/imx-pxp.c
+++ b/drivers/media/platform/imx-pxp.c
@@ -1664,6 +1664,8 @@ static int pxp_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
+	spin_lock_init(&dev->irqlock);
+
 	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, pxp_irq_handler,
 			IRQF_ONESHOT, dev_name(&pdev->dev), dev);
 	if (ret < 0) {
@@ -1681,8 +1683,6 @@ static int pxp_probe(struct platform_device *pdev)
 		goto err_clk;
 	}
 
-	spin_lock_init(&dev->irqlock);
-
 	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
 	if (ret)
 		goto err_clk;
-- 
GitLab


From 2028fb832da623e66ec78af9fc366088f6177bb9 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 15 Oct 2021 11:58:55 +0200
Subject: [PATCH 2979/4878] media: si470x-i2c: fix possible memory leak in
 si470x_i2c_probe()

[ Upstream commit ef054e345ed8c79ce1121a3599b5a2dfd78e57a0 ]

n the 'radio->hdl.error' error handling, ctrl handler allocated by
v4l2_ctrl_new_std() does not released, and caused memory leak as
follows:

unreferenced object 0xffff888033d54200 (size 256):
  comm "i2c-si470x-19", pid 909, jiffies 4294914203 (age 8.072s)
  hex dump (first 32 bytes):
    e8 69 11 03 80 88 ff ff 00 46 d5 33 80 88 ff ff  .i.......F.3....
    10 42 d5 33 80 88 ff ff 10 42 d5 33 80 88 ff ff  .B.3.....B.3....
  backtrace:
    [<00000000086bd4ed>] __kmalloc_node+0x1eb/0x360
    [<00000000bdb68871>] kvmalloc_node+0x66/0x120
    [<00000000fac74e4c>] v4l2_ctrl_new+0x7b9/0x1c60 [videodev]
    [<00000000693bf940>] v4l2_ctrl_new_std+0x19b/0x270 [videodev]
    [<00000000c0cb91bc>] si470x_i2c_probe+0x2d3/0x9a0 [radio_si470x_i2c]
    [<0000000056a6f01f>] i2c_device_probe+0x4d8/0xbe0

Fix the error handling path to avoid memory leak.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 8c081b6f9a9b ("media: radio: Critical v4l2 registration...")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/radio/si470x/radio-si470x-i2c.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
index a972c0705ac79..76d39e2e87706 100644
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c
+++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -368,7 +368,7 @@ static int si470x_i2c_probe(struct i2c_client *client)
 	if (radio->hdl.error) {
 		retval = radio->hdl.error;
 		dev_err(&client->dev, "couldn't register control\n");
-		goto err_dev;
+		goto err_all;
 	}
 
 	/* video device initialization */
@@ -463,7 +463,6 @@ static int si470x_i2c_probe(struct i2c_client *client)
 	return 0;
 err_all:
 	v4l2_ctrl_handler_free(&radio->hdl);
-err_dev:
 	v4l2_device_unregister(&radio->v4l2_dev);
 err_initial:
 	return retval;
-- 
GitLab


From 1da628d351a9fd9269ce543af0ecac464c8c3c4b Mon Sep 17 00:00:00 2001
From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Date: Wed, 17 Nov 2021 14:06:30 +0100
Subject: [PATCH 2980/4878] media: mtk-vcodec: call v4l2_m2m_ctx_release first
 when file is released

[ Upstream commit 9f89c881bffbdffe4060ffaef3489a2830a6dd9c ]

The func v4l2_m2m_ctx_release waits for currently running jobs
to finish and then stop streaming both queues and frees the buffers.
All this should be done before the call to mtk_vcodec_enc_release
which frees the encoder handler. This fixes null-pointer dereference bug:

[  638.028076] Mem abort info:
[  638.030932]   ESR = 0x96000004
[  638.033978]   EC = 0x25: DABT (current EL), IL = 32 bits
[  638.039293]   SET = 0, FnV = 0
[  638.042338]   EA = 0, S1PTW = 0
[  638.045474]   FSC = 0x04: level 0 translation fault
[  638.050349] Data abort info:
[  638.053224]   ISV = 0, ISS = 0x00000004
[  638.057055]   CM = 0, WnR = 0
[  638.060018] user pgtable: 4k pages, 48-bit VAs, pgdp=000000012b6db000
[  638.066485] [00000000000001a0] pgd=0000000000000000, p4d=0000000000000000
[  638.073277] Internal error: Oops: 96000004 [#1] SMP
[  638.078145] Modules linked in: rfkill mtk_vcodec_dec mtk_vcodec_enc uvcvideo mtk_mdp mtk_vcodec_common videobuf2_dma_contig v4l2_h264 cdc_ether v4l2_mem2mem videobuf2_vmalloc usbnet videobuf2_memops videobuf2_v4l2 r8152 videobuf2_common videodev cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf elan_i2c elants_i2c sbs_battery mc cros_usbpd_charger cros_ec_chardev cros_usbpd_logger crct10dif_ce mtk_vpu fuse ip_tables x_tables ipv6
[  638.118583] CPU: 0 PID: 212 Comm: kworker/u8:5 Not tainted 5.15.0-06427-g58a1d4dcfc74-dirty #109
[  638.127357] Hardware name: Google Elm (DT)
[  638.131444] Workqueue: mtk-vcodec-enc mtk_venc_worker [mtk_vcodec_enc]
[  638.137974] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  638.144925] pc : vp8_enc_encode+0x34/0x2b0 [mtk_vcodec_enc]
[  638.150493] lr : venc_if_encode+0xac/0x1b0 [mtk_vcodec_enc]
[  638.156060] sp : ffff8000124d3c40
[  638.159364] x29: ffff8000124d3c40 x28: 0000000000000000 x27: 0000000000000000
[  638.166493] x26: 0000000000000000 x25: ffff0000e7f252d0 x24: ffff8000124d3d58
[  638.173621] x23: ffff8000124d3d58 x22: ffff8000124d3d60 x21: 0000000000000001
[  638.180750] x20: ffff80001137e000 x19: 0000000000000000 x18: 0000000000000001
[  638.187878] x17: 000000040044ffff x16: 00400032b5503510 x15: 0000000000000000
[  638.195006] x14: ffff8000118536c0 x13: ffff8000ee1da000 x12: 0000000030d4d91d
[  638.202134] x11: 0000000000000000 x10: 0000000000000980 x9 : ffff8000124d3b20
[  638.209262] x8 : ffff0000c18d4ea0 x7 : ffff0000c18d44c0 x6 : ffff0000c18d44c0
[  638.216391] x5 : ffff80000904a3b0 x4 : ffff8000124d3d58 x3 : ffff8000124d3d60
[  638.223519] x2 : ffff8000124d3d78 x1 : 0000000000000001 x0 : ffff80001137efb8
[  638.230648] Call trace:
[  638.233084]  vp8_enc_encode+0x34/0x2b0 [mtk_vcodec_enc]
[  638.238304]  venc_if_encode+0xac/0x1b0 [mtk_vcodec_enc]
[  638.243525]  mtk_venc_worker+0x110/0x250 [mtk_vcodec_enc]
[  638.248918]  process_one_work+0x1f8/0x498
[  638.252923]  worker_thread+0x140/0x538
[  638.256664]  kthread+0x148/0x158
[  638.259884]  ret_from_fork+0x10/0x20
[  638.263455] Code: f90023f9 2a0103f5 aa0303f6 aa0403f8 (f940d277)
[  638.269538] ---[ end trace e374fc10f8e181f5 ]---

[gst-master] root@debian:~/gst-build# [  638.019193] Unable to handle kernel NULL pointer dereference at virtual address 00000000000001a0
Fixes: 4e855a6efa547 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 219c2c5b78efc..5f93bc670edb2 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -237,11 +237,11 @@ static int fops_vcodec_release(struct file *file)
 	mtk_v4l2_debug(1, "[%d] encoder", ctx->id);
 	mutex_lock(&dev->dev_mutex);
 
+	v4l2_m2m_ctx_release(ctx->m2m_ctx);
 	mtk_vcodec_enc_release(ctx);
 	v4l2_fh_del(&ctx->fh);
 	v4l2_fh_exit(&ctx->fh);
 	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
-	v4l2_m2m_ctx_release(ctx->m2m_ctx);
 
 	list_del_init(&ctx->list);
 	kfree(ctx);
-- 
GitLab


From 89f518b153d196d28788272e56d88db2a8e1a683 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Fri, 19 Nov 2021 11:41:20 +0100
Subject: [PATCH 2981/4878] media: coda: fix CODA960 JPEG encoder buffer
 overflow

[ Upstream commit 1a59cd88f55068710f6549bee548846661673780 ]

Stop the CODA960 JPEG encoder from overflowing capture buffers.
The bitstream buffer overflow interrupt doesn't seem to be connected,
so this has to be handled via timeout instead.

Reported-by: Martin Weber <martin.weber@br-automation.com>
Fixes: 96f6f62c4656 ("media: coda: jpeg: add CODA960 JPEG encoder support")
Tested-by: Martin Weber <martin.weber@br-automation.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/coda/coda-common.c |  8 +++++---
 drivers/media/platform/coda/coda-jpeg.c   | 21 ++++++++++++++++++++-
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 87a2c706f7477..1eed69d29149f 100644
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -1537,11 +1537,13 @@ static void coda_pic_run_work(struct work_struct *work)
 
 	if (!wait_for_completion_timeout(&ctx->completion,
 					 msecs_to_jiffies(1000))) {
-		dev_err(dev->dev, "CODA PIC_RUN timeout\n");
+		if (ctx->use_bit) {
+			dev_err(dev->dev, "CODA PIC_RUN timeout\n");
 
-		ctx->hold = true;
+			ctx->hold = true;
 
-		coda_hw_reset(ctx);
+			coda_hw_reset(ctx);
+		}
 
 		if (ctx->ops->run_timeout)
 			ctx->ops->run_timeout(ctx);
diff --git a/drivers/media/platform/coda/coda-jpeg.c b/drivers/media/platform/coda/coda-jpeg.c
index b11cfbe166dd3..a72f4655e5ad5 100644
--- a/drivers/media/platform/coda/coda-jpeg.c
+++ b/drivers/media/platform/coda/coda-jpeg.c
@@ -1127,7 +1127,8 @@ static int coda9_jpeg_prepare_encode(struct coda_ctx *ctx)
 	coda_write(dev, 0, CODA9_REG_JPEG_GBU_BT_PTR);
 	coda_write(dev, 0, CODA9_REG_JPEG_GBU_WD_PTR);
 	coda_write(dev, 0, CODA9_REG_JPEG_GBU_BBSR);
-	coda_write(dev, 0, CODA9_REG_JPEG_BBC_STRM_CTRL);
+	coda_write(dev, BIT(31) | ((end_addr - start_addr - header_len) / 256),
+		   CODA9_REG_JPEG_BBC_STRM_CTRL);
 	coda_write(dev, 0, CODA9_REG_JPEG_GBU_CTRL);
 	coda_write(dev, 0, CODA9_REG_JPEG_GBU_FF_RPTR);
 	coda_write(dev, 127, CODA9_REG_JPEG_GBU_BBER);
@@ -1257,6 +1258,23 @@ static void coda9_jpeg_finish_encode(struct coda_ctx *ctx)
 	coda_hw_reset(ctx);
 }
 
+static void coda9_jpeg_encode_timeout(struct coda_ctx *ctx)
+{
+	struct coda_dev *dev = ctx->dev;
+	u32 end_addr, wr_ptr;
+
+	/* Handle missing BBC overflow interrupt via timeout */
+	end_addr = coda_read(dev, CODA9_REG_JPEG_BBC_END_ADDR);
+	wr_ptr = coda_read(dev, CODA9_REG_JPEG_BBC_WR_PTR);
+	if (wr_ptr >= end_addr - 256) {
+		v4l2_err(&dev->v4l2_dev, "JPEG too large for capture buffer\n");
+		coda9_jpeg_finish_encode(ctx);
+		return;
+	}
+
+	coda_hw_reset(ctx);
+}
+
 static void coda9_jpeg_release(struct coda_ctx *ctx)
 {
 	int i;
@@ -1276,6 +1294,7 @@ const struct coda_context_ops coda9_jpeg_encode_ops = {
 	.start_streaming = coda9_jpeg_start_encoding,
 	.prepare_run = coda9_jpeg_prepare_encode,
 	.finish_run = coda9_jpeg_finish_encode,
+	.run_timeout = coda9_jpeg_encode_timeout,
 	.release = coda9_jpeg_release,
 };
 
-- 
GitLab


From 53f65afc260f962cb05bb1d1c29be6edabc2e939 Mon Sep 17 00:00:00 2001
From: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Date: Sat, 9 Jan 2021 08:21:30 +0100
Subject: [PATCH 2982/4878] media: venus: pm_helpers: Control core power domain
 manually

[ Upstream commit a76f43a490542ecb8c57176730b6eb665d716139 ]

Presently we use device_link to control core power domain. But this
leads to issues because the genpd doesn't guarantee synchronous on/off
for supplier devices. Switch to manually control by pmruntime calls.

Tested-by: Fritz Koenig <frkoenig@chromium.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/core.h      |  2 --
 .../media/platform/qcom/venus/pm_helpers.c    | 36 ++++++++++---------
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 05c9fbd51f0c0..f2a0ef9ee884e 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -123,7 +123,6 @@ struct venus_caps {
  * @clks:	an array of struct clk pointers
  * @vcodec0_clks: an array of vcodec0 struct clk pointers
  * @vcodec1_clks: an array of vcodec1 struct clk pointers
- * @pd_dl_venus: pmdomain device-link for venus domain
  * @pmdomains:	an array of pmdomains struct device pointers
  * @vdev_dec:	a reference to video device structure for decoder instances
  * @vdev_enc:	a reference to video device structure for encoder instances
@@ -161,7 +160,6 @@ struct venus_core {
 	struct icc_path *cpucfg_path;
 	struct opp_table *opp_table;
 	bool has_opp_table;
-	struct device_link *pd_dl_venus;
 	struct device *pmdomains[VIDC_PMDOMAINS_NUM_MAX];
 	struct device_link *opp_dl_venus;
 	struct device *opp_pmdomain;
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 2946547a0df4a..bce9a370015fb 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -773,13 +773,6 @@ static int vcodec_domains_get(struct device *dev)
 		core->pmdomains[i] = pd;
 	}
 
-	core->pd_dl_venus = device_link_add(dev, core->pmdomains[0],
-					    DL_FLAG_PM_RUNTIME |
-					    DL_FLAG_STATELESS |
-					    DL_FLAG_RPM_ACTIVE);
-	if (!core->pd_dl_venus)
-		return -ENODEV;
-
 skip_pmdomains:
 	if (!core->has_opp_table)
 		return 0;
@@ -806,14 +799,12 @@ skip_pmdomains:
 opp_dl_add_err:
 	dev_pm_opp_detach_genpd(core->opp_table);
 opp_attach_err:
-	if (core->pd_dl_venus) {
-		device_link_del(core->pd_dl_venus);
-		for (i = 0; i < res->vcodec_pmdomains_num; i++) {
-			if (IS_ERR_OR_NULL(core->pmdomains[i]))
-				continue;
-			dev_pm_domain_detach(core->pmdomains[i], true);
-		}
+	for (i = 0; i < res->vcodec_pmdomains_num; i++) {
+		if (IS_ERR_OR_NULL(core->pmdomains[i]))
+			continue;
+		dev_pm_domain_detach(core->pmdomains[i], true);
 	}
+
 	return ret;
 }
 
@@ -826,9 +817,6 @@ static void vcodec_domains_put(struct device *dev)
 	if (!res->vcodec_pmdomains_num)
 		goto skip_pmdomains;
 
-	if (core->pd_dl_venus)
-		device_link_del(core->pd_dl_venus);
-
 	for (i = 0; i < res->vcodec_pmdomains_num; i++) {
 		if (IS_ERR_OR_NULL(core->pmdomains[i]))
 			continue;
@@ -916,16 +904,30 @@ static void core_put_v4(struct device *dev)
 static int core_power_v4(struct device *dev, int on)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
+	struct device *pmctrl = core->pmdomains[0];
 	int ret = 0;
 
 	if (on == POWER_ON) {
+		if (pmctrl) {
+			ret = pm_runtime_get_sync(pmctrl);
+			if (ret < 0) {
+				pm_runtime_put_noidle(pmctrl);
+				return ret;
+			}
+		}
+
 		ret = core_clks_enable(core);
+		if (ret < 0 && pmctrl)
+			pm_runtime_put_sync(pmctrl);
 	} else {
 		/* Drop the performance state vote */
 		if (core->opp_pmdomain)
 			dev_pm_opp_set_rate(dev, 0);
 
 		core_clks_disable(core);
+
+		if (pmctrl)
+			pm_runtime_put_sync(pmctrl);
 	}
 
 	return ret;
-- 
GitLab


From eeefa2eae8fc82ad757a2241b9f82ac33e99e6b4 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Fri, 5 Feb 2021 19:11:49 +0100
Subject: [PATCH 2983/4878] media: venus: core, venc, vdec: Fix probe
 dependency error

[ Upstream commit 08b1cf474b7f72750adebe0f0a35f8e9a3eb75f6 ]

Commit aaaa93eda64b ("media] media: venus: venc: add video encoder files")
is the last in a series of three commits to add core.c vdec.c and venc.c
adding core, encoder and decoder.

The encoder and decoder check for core drvdata as set and return -EPROBE_DEFER
if it has not been set, however both the encoder and decoder rely on
core.v4l2_dev as valid.

core.v4l2_dev will not be valid until v4l2_device_register() has completed
in core.c's probe().

Normally this is never seen however, Dmitry reported the following
backtrace when compiling drivers and firmware directly into a kernel image.

[    5.259968] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT)
[    5.269850] sd 0:0:0:3: [sdd] Optimal transfer size 524288 bytes
[    5.275505] Workqueue: events deferred_probe_work_func
[    5.275513] pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--)
[    5.441211] usb 2-1: new SuperSpeedPlus Gen 2 USB device number 2 using xhci-hcd
[    5.442486] pc : refcount_warn_saturate+0x140/0x148
[    5.493756] hub 2-1:1.0: USB hub found
[    5.496266] lr : refcount_warn_saturate+0x140/0x148
[    5.500982] hub 2-1:1.0: 4 ports detected
[    5.503440] sp : ffff80001067b730
[    5.503442] x29: ffff80001067b730
[    5.592660] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[    5.598478] x28: ffff6c6bc1c379b8
[    5.598480] x27: ffffa5c673852960 x26: ffffa5c673852000
[    5.598484] x25: ffff6c6bc1c37800 x24: 0000000000000001
[    5.810652] x23: 0000000000000000 x22: ffffa5c673bc7118
[    5.813777] hub 1-1:1.0: USB hub found
[    5.816108] x21: ffffa5c674440000 x20: 0000000000000001
[    5.820846] hub 1-1:1.0: 4 ports detected
[    5.825415] x19: ffffa5c6744f4000 x18: ffffffffffffffff
[    5.825418] x17: 0000000000000000 x16: 0000000000000000
[    5.825421] x15: 00000a4810c193ba x14: 0000000000000000
[    5.825424] x13: 00000000000002b8 x12: 000000000000f20a
[    5.825427] x11: 000000000000f20a x10: 0000000000000038
[    5.845447] usb 2-1.1: new SuperSpeed Gen 1 USB device number 3 using xhci-hcd
[    5.845904]
[    5.845905] x9 : 0000000000000000 x8 : ffff6c6d36fae780
[    5.871208] x7 : ffff6c6d36faf240 x6 : 0000000000000000
[    5.876664] x5 : 0000000000000004 x4 : 0000000000000085
[    5.882121] x3 : 0000000000000119 x2 : ffffa5c6741ef478
[    5.887578] x1 : 3acbb3926faf5f00 x0 : 0000000000000000
[    5.893036] Call trace:
[    5.895551]  refcount_warn_saturate+0x140/0x148
[    5.900202]  __video_register_device+0x64c/0xd10
[    5.904944]  venc_probe+0xc4/0x148
[    5.908444]  platform_probe+0x68/0xe0
[    5.912210]  really_probe+0x118/0x3e0
[    5.915977]  driver_probe_device+0x5c/0xc0
[    5.920187]  __device_attach_driver+0x98/0xb8
[    5.924661]  bus_for_each_drv+0x68/0xd0
[    5.928604]  __device_attach+0xec/0x148
[    5.932547]  device_initial_probe+0x14/0x20
[    5.936845]  bus_probe_device+0x9c/0xa8
[    5.940788]  device_add+0x3e8/0x7c8
[    5.944376]  of_device_add+0x4c/0x60
[    5.948056]  of_platform_device_create_pdata+0xbc/0x140
[    5.953425]  of_platform_bus_create+0x17c/0x3c0
[    5.958078]  of_platform_populate+0x80/0x110
[    5.962463]  venus_probe+0x2ec/0x4d8
[    5.966143]  platform_probe+0x68/0xe0
[    5.969907]  really_probe+0x118/0x3e0
[    5.973674]  driver_probe_device+0x5c/0xc0
[    5.977882]  __device_attach_driver+0x98/0xb8
[    5.982356]  bus_for_each_drv+0x68/0xd0
[    5.986298]  __device_attach+0xec/0x148
[    5.990242]  device_initial_probe+0x14/0x20
[    5.994539]  bus_probe_device+0x9c/0xa8
[    5.998481]  deferred_probe_work_func+0x74/0xb0
[    6.003132]  process_one_work+0x1e8/0x360
[    6.007254]  worker_thread+0x208/0x478
[    6.011106]  kthread+0x150/0x158
[    6.014431]  ret_from_fork+0x10/0x30
[    6.018111] ---[ end trace f074246b1ecdb466 ]---

This patch fixes by

- Only setting drvdata after v4l2_device_register() completes
- Moving v4l2_device_register() so that suspend/reume in core::probe()
  stays as-is
- Changes pm_ops->core_function() to take struct venus_core not struct
  device
- Minimal rework of v4l2_device_*register in probe/remove

Reported-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/core.c      | 30 +++++++++++--------
 .../media/platform/qcom/venus/pm_helpers.c    | 30 ++++++++-----------
 .../media/platform/qcom/venus/pm_helpers.h    |  7 +++--
 3 files changed, 34 insertions(+), 33 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 58ddebbb84468..bad553bf9f304 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -222,7 +222,6 @@ static int venus_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	core->dev = dev;
-	platform_set_drvdata(pdev, core);
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	core->base = devm_ioremap_resource(dev, r);
@@ -252,7 +251,7 @@ static int venus_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	if (core->pm_ops->core_get) {
-		ret = core->pm_ops->core_get(dev);
+		ret = core->pm_ops->core_get(core);
 		if (ret)
 			return ret;
 	}
@@ -277,6 +276,12 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_core_put;
 
+	ret = v4l2_device_register(dev, &core->v4l2_dev);
+	if (ret)
+		goto err_core_deinit;
+
+	platform_set_drvdata(pdev, core);
+
 	pm_runtime_enable(dev);
 
 	ret = pm_runtime_get_sync(dev);
@@ -311,10 +316,6 @@ static int venus_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_venus_shutdown;
 
-	ret = v4l2_device_register(dev, &core->v4l2_dev);
-	if (ret)
-		goto err_core_deinit;
-
 	ret = pm_runtime_put_sync(dev);
 	if (ret) {
 		pm_runtime_get_noresume(dev);
@@ -327,8 +328,6 @@ static int venus_probe(struct platform_device *pdev)
 
 err_dev_unregister:
 	v4l2_device_unregister(&core->v4l2_dev);
-err_core_deinit:
-	hfi_core_deinit(core, false);
 err_venus_shutdown:
 	venus_shutdown(core);
 err_runtime_disable:
@@ -336,9 +335,11 @@ err_runtime_disable:
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 	hfi_destroy(core);
+err_core_deinit:
+	hfi_core_deinit(core, false);
 err_core_put:
 	if (core->pm_ops->core_put)
-		core->pm_ops->core_put(dev);
+		core->pm_ops->core_put(core);
 	return ret;
 }
 
@@ -364,11 +365,14 @@ static int venus_remove(struct platform_device *pdev)
 	pm_runtime_disable(dev);
 
 	if (pm_ops->core_put)
-		pm_ops->core_put(dev);
+		pm_ops->core_put(core);
+
+	v4l2_device_unregister(&core->v4l2_dev);
 
 	hfi_destroy(core);
 
 	v4l2_device_unregister(&core->v4l2_dev);
+
 	mutex_destroy(&core->pm_lock);
 	mutex_destroy(&core->lock);
 	venus_dbgfs_deinit(core);
@@ -387,7 +391,7 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 		return ret;
 
 	if (pm_ops->core_power) {
-		ret = pm_ops->core_power(dev, POWER_OFF);
+		ret = pm_ops->core_power(core, POWER_OFF);
 		if (ret)
 			return ret;
 	}
@@ -405,7 +409,7 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 err_video_path:
 	icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0);
 err_cpucfg_path:
-	pm_ops->core_power(dev, POWER_ON);
+	pm_ops->core_power(core, POWER_ON);
 
 	return ret;
 }
@@ -425,7 +429,7 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
 		return ret;
 
 	if (pm_ops->core_power) {
-		ret = pm_ops->core_power(dev, POWER_ON);
+		ret = pm_ops->core_power(core, POWER_ON);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index bce9a370015fb..63095d70f8d82 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -276,16 +276,13 @@ set_freq:
 	return 0;
 }
 
-static int core_get_v1(struct device *dev)
+static int core_get_v1(struct venus_core *core)
 {
-	struct venus_core *core = dev_get_drvdata(dev);
-
 	return core_clks_get(core);
 }
 
-static int core_power_v1(struct device *dev, int on)
+static int core_power_v1(struct venus_core *core, int on)
 {
-	struct venus_core *core = dev_get_drvdata(dev);
 	int ret = 0;
 
 	if (on == POWER_ON)
@@ -752,12 +749,12 @@ static int venc_power_v4(struct device *dev, int on)
 	return ret;
 }
 
-static int vcodec_domains_get(struct device *dev)
+static int vcodec_domains_get(struct venus_core *core)
 {
 	int ret;
 	struct opp_table *opp_table;
 	struct device **opp_virt_dev;
-	struct venus_core *core = dev_get_drvdata(dev);
+	struct device *dev = core->dev;
 	const struct venus_resources *res = core->res;
 	struct device *pd;
 	unsigned int i;
@@ -808,9 +805,8 @@ opp_attach_err:
 	return ret;
 }
 
-static void vcodec_domains_put(struct device *dev)
+static void vcodec_domains_put(struct venus_core *core)
 {
-	struct venus_core *core = dev_get_drvdata(dev);
 	const struct venus_resources *res = core->res;
 	unsigned int i;
 
@@ -833,9 +829,9 @@ skip_pmdomains:
 	dev_pm_opp_detach_genpd(core->opp_table);
 }
 
-static int core_get_v4(struct device *dev)
+static int core_get_v4(struct venus_core *core)
 {
-	struct venus_core *core = dev_get_drvdata(dev);
+	struct device *dev = core->dev;
 	const struct venus_resources *res = core->res;
 	int ret;
 
@@ -874,7 +870,7 @@ static int core_get_v4(struct device *dev)
 		}
 	}
 
-	ret = vcodec_domains_get(dev);
+	ret = vcodec_domains_get(core);
 	if (ret) {
 		if (core->has_opp_table)
 			dev_pm_opp_of_remove_table(dev);
@@ -885,14 +881,14 @@ static int core_get_v4(struct device *dev)
 	return 0;
 }
 
-static void core_put_v4(struct device *dev)
+static void core_put_v4(struct venus_core *core)
 {
-	struct venus_core *core = dev_get_drvdata(dev);
+	struct device *dev = core->dev;
 
 	if (legacy_binding)
 		return;
 
-	vcodec_domains_put(dev);
+	vcodec_domains_put(core);
 
 	if (core->has_opp_table)
 		dev_pm_opp_of_remove_table(dev);
@@ -901,9 +897,9 @@ static void core_put_v4(struct device *dev)
 
 }
 
-static int core_power_v4(struct device *dev, int on)
+static int core_power_v4(struct venus_core *core, int on)
 {
-	struct venus_core *core = dev_get_drvdata(dev);
+	struct device *dev = core->dev;
 	struct device *pmctrl = core->pmdomains[0];
 	int ret = 0;
 
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index aa2f6afa23544..a492c50c5543c 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -4,14 +4,15 @@
 #define __VENUS_PM_HELPERS_H__
 
 struct device;
+struct venus_core;
 
 #define POWER_ON	1
 #define POWER_OFF	0
 
 struct venus_pm_ops {
-	int (*core_get)(struct device *dev);
-	void (*core_put)(struct device *dev);
-	int (*core_power)(struct device *dev, int on);
+	int (*core_get)(struct venus_core *core);
+	void (*core_put)(struct venus_core *core);
+	int (*core_power)(struct venus_core *core, int on);
 
 	int (*vdec_get)(struct device *dev);
 	void (*vdec_put)(struct device *dev);
-- 
GitLab


From 50c4244906d654605639f9b6aecf8bd95050304b Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Thu, 12 Aug 2021 07:14:22 +0200
Subject: [PATCH 2984/4878] media: venus: core: Fix a potential NULL pointer
 dereference in an error handling path

[ Upstream commit e4debea9be7d5db52bc6a565a4c02c3c6560d093 ]

The normal path of the function makes the assumption that
'pm_ops->core_power' may be NULL.
We should make the same assumption in the error handling path or a NULL
pointer dereference may occur.

Add the missing test before calling 'pm_ops->core_power'

Fixes: 9e8efdb57879 ("media: venus: core: vote for video-mem path")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index bad553bf9f304..791ed1b1bbbd3 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -409,7 +409,8 @@ static __maybe_unused int venus_runtime_suspend(struct device *dev)
 err_video_path:
 	icc_set_bw(core->cpucfg_path, kbps_to_icc(1000), 0);
 err_cpucfg_path:
-	pm_ops->core_power(core, POWER_ON);
+	if (pm_ops->core_power)
+		pm_ops->core_power(core, POWER_ON);
 
 	return ret;
 }
-- 
GitLab


From c3a59f34e87c5317bdf9513ef31207ba70e3de61 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Thu, 19 Aug 2021 22:05:28 +0200
Subject: [PATCH 2985/4878] media: venus: core: Fix a resource leak in the
 error handling path of 'venus_probe()'

[ Upstream commit 8cc7a1b2aca067397a016cdb971a5e6ad9b640c7 ]

A successful 'of_platform_populate()' call should be balanced by a
corresponding 'of_platform_depopulate()' call in the error handling path
of the probe, as already done in the remove function.

A successful 'venus_firmware_init()' call should be balanced by a
corresponding 'venus_firmware_deinit()' call in the error handling path
of the probe, as already done in the remove function.

Update the error handling path accordingly.

Fixes: f9799fcce4bb ("media: venus: firmware: register separate platform_device for firmware loader")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 791ed1b1bbbd3..1d621f7769035 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -294,11 +294,11 @@ static int venus_probe(struct platform_device *pdev)
 
 	ret = venus_firmware_init(core);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_of_depopulate;
 
 	ret = venus_boot(core);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_firmware_deinit;
 
 	ret = hfi_core_resume(core, true);
 	if (ret)
@@ -330,6 +330,10 @@ err_dev_unregister:
 	v4l2_device_unregister(&core->v4l2_dev);
 err_venus_shutdown:
 	venus_shutdown(core);
+err_firmware_deinit:
+	venus_firmware_deinit(core);
+err_of_depopulate:
+	of_platform_depopulate(dev);
 err_runtime_disable:
 	pm_runtime_put_noidle(dev);
 	pm_runtime_set_suspended(dev);
-- 
GitLab


From 13f64bbe425524ed7b8eecad046150dae7265b29 Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: Wed, 17 Nov 2021 11:34:26 +0100
Subject: [PATCH 2986/4878] thermal/drivers/imx: Implement runtime PM support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 4cf2ddf16e175ee18c5c29865c32da7d6269cf44 ]

Starting with commit d92ed2c9d3ff ("thermal: imx: Use driver's local
data to decide whether to run a measurement") this driver stared using
irq_enabled flag to make decision to power on/off the thermal
core. This triggered a regression, where after reaching critical
temperature, alarm IRQ handler set irq_enabled to false, disabled
thermal core and was not able read temperature and disable cooling
sequence.

In case the cooling device is "CPU/GPU freq", the system will run with
reduce performance until next reboot.

To solve this issue, we need to move all parts implementing hand made
runtime power management and let it handle actual runtime PM framework.

Fixes: d92ed2c9d3ff ("thermal: imx: Use driver's local data to decide whether to run a measurement")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Tested-by: Petr Beneš <petr.benes@ysoft.com>
Link: https://lore.kernel.org/r/20211117103426.81813-1-o.rempel@pengutronix.de
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/imx_thermal.c | 145 +++++++++++++++++++++-------------
 1 file changed, 91 insertions(+), 54 deletions(-)

diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 2c7473d86a59b..16663373b6829 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -15,6 +15,7 @@
 #include <linux/regmap.h>
 #include <linux/thermal.h>
 #include <linux/nvmem-consumer.h>
+#include <linux/pm_runtime.h>
 
 #define REG_SET		0x4
 #define REG_CLR		0x8
@@ -194,6 +195,7 @@ static struct thermal_soc_data thermal_imx7d_data = {
 };
 
 struct imx_thermal_data {
+	struct device *dev;
 	struct cpufreq_policy *policy;
 	struct thermal_zone_device *tz;
 	struct thermal_cooling_device *cdev;
@@ -252,44 +254,15 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 	const struct thermal_soc_data *soc_data = data->socdata;
 	struct regmap *map = data->tempmon;
 	unsigned int n_meas;
-	bool wait, run_measurement;
 	u32 val;
+	int ret;
 
-	run_measurement = !data->irq_enabled;
-	if (!run_measurement) {
-		/* Check if a measurement is currently in progress */
-		regmap_read(map, soc_data->temp_data, &val);
-		wait = !(val & soc_data->temp_valid_mask);
-	} else {
-		/*
-		 * Every time we measure the temperature, we will power on the
-		 * temperature sensor, enable measurements, take a reading,
-		 * disable measurements, power off the temperature sensor.
-		 */
-		regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
-			    soc_data->power_down_mask);
-		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
-			    soc_data->measure_temp_mask);
-
-		wait = true;
-	}
-
-	/*
-	 * According to the temp sensor designers, it may require up to ~17us
-	 * to complete a measurement.
-	 */
-	if (wait)
-		usleep_range(20, 50);
+	ret = pm_runtime_resume_and_get(data->dev);
+	if (ret < 0)
+		return ret;
 
 	regmap_read(map, soc_data->temp_data, &val);
 
-	if (run_measurement) {
-		regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
-			     soc_data->measure_temp_mask);
-		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
-			     soc_data->power_down_mask);
-	}
-
 	if ((val & soc_data->temp_valid_mask) == 0) {
 		dev_dbg(&tz->device, "temp measurement never finished\n");
 		return -EAGAIN;
@@ -328,6 +301,8 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 		enable_irq(data->irq);
 	}
 
+	pm_runtime_put(data->dev);
+
 	return 0;
 }
 
@@ -335,24 +310,16 @@ static int imx_change_mode(struct thermal_zone_device *tz,
 			   enum thermal_device_mode mode)
 {
 	struct imx_thermal_data *data = tz->devdata;
-	struct regmap *map = data->tempmon;
-	const struct thermal_soc_data *soc_data = data->socdata;
 
 	if (mode == THERMAL_DEVICE_ENABLED) {
-		regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
-			     soc_data->power_down_mask);
-		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
-			     soc_data->measure_temp_mask);
+		pm_runtime_get(data->dev);
 
 		if (!data->irq_enabled) {
 			data->irq_enabled = true;
 			enable_irq(data->irq);
 		}
 	} else {
-		regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
-			     soc_data->measure_temp_mask);
-		regmap_write(map, soc_data->sensor_ctrl + REG_SET,
-			     soc_data->power_down_mask);
+		pm_runtime_put(data->dev);
 
 		if (data->irq_enabled) {
 			disable_irq(data->irq);
@@ -393,6 +360,11 @@ static int imx_set_trip_temp(struct thermal_zone_device *tz, int trip,
 			     int temp)
 {
 	struct imx_thermal_data *data = tz->devdata;
+	int ret;
+
+	ret = pm_runtime_resume_and_get(data->dev);
+	if (ret < 0)
+		return ret;
 
 	/* do not allow changing critical threshold */
 	if (trip == IMX_TRIP_CRITICAL)
@@ -406,6 +378,8 @@ static int imx_set_trip_temp(struct thermal_zone_device *tz, int trip,
 
 	imx_set_alarm_temp(data, temp);
 
+	pm_runtime_put(data->dev);
+
 	return 0;
 }
 
@@ -681,6 +655,8 @@ static int imx_thermal_probe(struct platform_device *pdev)
 	if (!data)
 		return -ENOMEM;
 
+	data->dev = &pdev->dev;
+
 	map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "fsl,tempmon");
 	if (IS_ERR(map)) {
 		ret = PTR_ERR(map);
@@ -800,6 +776,16 @@ static int imx_thermal_probe(struct platform_device *pdev)
 		     data->socdata->power_down_mask);
 	regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
 		     data->socdata->measure_temp_mask);
+	/* After power up, we need a delay before first access can be done. */
+	usleep_range(20, 50);
+
+	/* the core was configured and enabled just before */
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(data->dev);
+
+	ret = pm_runtime_resume_and_get(data->dev);
+	if (ret < 0)
+		goto disable_runtime_pm;
 
 	data->irq_enabled = true;
 	ret = thermal_zone_device_enable(data->tz);
@@ -814,10 +800,15 @@ static int imx_thermal_probe(struct platform_device *pdev)
 		goto thermal_zone_unregister;
 	}
 
+	pm_runtime_put(data->dev);
+
 	return 0;
 
 thermal_zone_unregister:
 	thermal_zone_device_unregister(data->tz);
+disable_runtime_pm:
+	pm_runtime_put_noidle(data->dev);
+	pm_runtime_disable(data->dev);
 clk_disable:
 	clk_disable_unprepare(data->thermal_clk);
 legacy_cleanup:
@@ -829,13 +820,9 @@ legacy_cleanup:
 static int imx_thermal_remove(struct platform_device *pdev)
 {
 	struct imx_thermal_data *data = platform_get_drvdata(pdev);
-	struct regmap *map = data->tempmon;
 
-	/* Disable measurements */
-	regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
-		     data->socdata->power_down_mask);
-	if (!IS_ERR(data->thermal_clk))
-		clk_disable_unprepare(data->thermal_clk);
+	pm_runtime_put_noidle(data->dev);
+	pm_runtime_disable(data->dev);
 
 	thermal_zone_device_unregister(data->tz);
 	imx_thermal_unregister_legacy_cooling(data);
@@ -858,29 +845,79 @@ static int __maybe_unused imx_thermal_suspend(struct device *dev)
 	ret = thermal_zone_device_disable(data->tz);
 	if (ret)
 		return ret;
+
+	return pm_runtime_force_suspend(data->dev);
+}
+
+static int __maybe_unused imx_thermal_resume(struct device *dev)
+{
+	struct imx_thermal_data *data = dev_get_drvdata(dev);
+	int ret;
+
+	ret = pm_runtime_force_resume(data->dev);
+	if (ret)
+		return ret;
+	/* Enabled thermal sensor after resume */
+	return thermal_zone_device_enable(data->tz);
+}
+
+static int __maybe_unused imx_thermal_runtime_suspend(struct device *dev)
+{
+	struct imx_thermal_data *data = dev_get_drvdata(dev);
+	const struct thermal_soc_data *socdata = data->socdata;
+	struct regmap *map = data->tempmon;
+	int ret;
+
+	ret = regmap_write(map, socdata->sensor_ctrl + REG_CLR,
+			   socdata->measure_temp_mask);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(map, socdata->sensor_ctrl + REG_SET,
+			   socdata->power_down_mask);
+	if (ret)
+		return ret;
+
 	clk_disable_unprepare(data->thermal_clk);
 
 	return 0;
 }
 
-static int __maybe_unused imx_thermal_resume(struct device *dev)
+static int __maybe_unused imx_thermal_runtime_resume(struct device *dev)
 {
 	struct imx_thermal_data *data = dev_get_drvdata(dev);
+	const struct thermal_soc_data *socdata = data->socdata;
+	struct regmap *map = data->tempmon;
 	int ret;
 
 	ret = clk_prepare_enable(data->thermal_clk);
 	if (ret)
 		return ret;
-	/* Enabled thermal sensor after resume */
-	ret = thermal_zone_device_enable(data->tz);
+
+	ret = regmap_write(map, socdata->sensor_ctrl + REG_CLR,
+			   socdata->power_down_mask);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(map, socdata->sensor_ctrl + REG_SET,
+			   socdata->measure_temp_mask);
 	if (ret)
 		return ret;
 
+	/*
+	 * According to the temp sensor designers, it may require up to ~17us
+	 * to complete a measurement.
+	 */
+	usleep_range(20, 50);
+
 	return 0;
 }
 
-static SIMPLE_DEV_PM_OPS(imx_thermal_pm_ops,
-			 imx_thermal_suspend, imx_thermal_resume);
+static const struct dev_pm_ops imx_thermal_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(imx_thermal_suspend, imx_thermal_resume)
+	SET_RUNTIME_PM_OPS(imx_thermal_runtime_suspend,
+			   imx_thermal_runtime_resume, NULL)
+};
 
 static struct platform_driver imx_thermal = {
 	.driver = {
-- 
GitLab


From 894d91c6334b8778750be4dc7c8cd0d3114864ca Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Tue, 23 Nov 2021 12:50:31 +0100
Subject: [PATCH 2987/4878] netfilter: bridge: add support for pppoe filtering

[ Upstream commit 28b78ecffea8078d81466b2e01bb5a154509f1ba ]

This makes 'bridge-nf-filter-pppoe-tagged' sysctl work for
bridged traffic.

Looking at the original commit it doesn't appear this ever worked:

 static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff **pskb,
[..]
        if (skb->protocol == htons(ETH_P_8021Q)) {
                skb_pull(skb, VLAN_HLEN);
                skb->network_header += VLAN_HLEN;
+       } else if (skb->protocol == htons(ETH_P_PPP_SES)) {
+               skb_pull(skb, PPPOE_SES_HLEN);
+               skb->network_header += PPPOE_SES_HLEN;
        }
 [..]
	NF_HOOK(... POST_ROUTING, ...)

... but the adjusted offsets are never restored.

The alternative would be to rip this code out for good,
but otoh we'd have to keep this anyway for the vlan handling
(which works because vlan tag info is in the skb, not the packet
 payload).

Reported-and-tested-by: Amish Chana <amish@3g.co.za>
Fixes: 516299d2f5b6f97 ("[NETFILTER]: bridge-nf: filter bridged IPv4/IPv6 encapsulated in pppoe traffic")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_netfilter_hooks.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 8edfb98ae1d58..68c0d0f928908 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -743,6 +743,9 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff
 	if (nf_bridge->frag_max_size && nf_bridge->frag_max_size < mtu)
 		mtu = nf_bridge->frag_max_size;
 
+	nf_bridge_update_protocol(skb);
+	nf_bridge_push_encap_header(skb);
+
 	if (skb_is_gso(skb) || skb->len + mtu_reserved <= mtu) {
 		nf_bridge_info_free(skb);
 		return br_dev_queue_push_xmit(net, sk, skb);
@@ -760,8 +763,6 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff
 
 		IPCB(skb)->frag_max_size = nf_bridge->frag_max_size;
 
-		nf_bridge_update_protocol(skb);
-
 		data = this_cpu_ptr(&brnf_frag_data_storage);
 
 		if (skb_vlan_tag_present(skb)) {
@@ -789,8 +790,6 @@ static int br_nf_dev_queue_xmit(struct net *net, struct sock *sk, struct sk_buff
 
 		IP6CB(skb)->frag_max_size = nf_bridge->frag_max_size;
 
-		nf_bridge_update_protocol(skb);
-
 		data = this_cpu_ptr(&brnf_frag_data_storage);
 		data->encap_size = nf_bridge_encap_header_len(skb);
 		data->size = ETH_HLEN + data->encap_size;
-- 
GitLab


From e7e178e264183efa6ca70ba1b6440b2ca3bb0e6c Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Wed, 1 Dec 2021 05:05:59 +0300
Subject: [PATCH 2988/4878] arm64: dts: qcom: msm8916: fix MMC controller
 aliases

[ Upstream commit b0293c19d42f6d6951c2fab9a47fed50baf2c14d ]

Change sdhcN aliases to mmcN to make them actually work. Currently the
board uses non-standard aliases sdhcN, which do not work, resulting in
mmc0 and mmc1 hosts randomly changing indices between boots.

Fixes: c4da5a561627 ("arm64: dts: qcom: Add msm8916 sdhci configuration nodes")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211201020559.1611890-1-dmitry.baryshkov@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index b1ffc056eea0b..291276a38d7cd 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -18,8 +18,8 @@
 	#size-cells = <2>;
 
 	aliases {
-		sdhc1 = &sdhc_1; /* SDC1 eMMC slot */
-		sdhc2 = &sdhc_2; /* SDC2 SD card slot */
+		mmc0 = &sdhc_1; /* SDC1 eMMC slot */
+		mmc1 = &sdhc_2; /* SDC2 SD card slot */
 	};
 
 	chosen { };
-- 
GitLab


From c0acd5a09796c3c4b919d329c6d9db3a44884c80 Mon Sep 17 00:00:00 2001
From: William Kucharski <william.kucharski@oracle.com>
Date: Wed, 1 Dec 2021 09:56:58 -0700
Subject: [PATCH 2989/4878] cgroup: Trace event cgroup id fields should be u64

[ Upstream commit e14da77113bb890d7bf9e5d17031bdd476a7ce5e ]

Various trace event fields that store cgroup IDs were declared as
ints, but cgroup_id(() returns a u64 and the structures and associated
TP_printk() calls were not updated to reflect this.

Fixes: 743210386c03 ("cgroup: use cgrp->kn->id as the cgroup ID")
Signed-off-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/trace/events/cgroup.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/trace/events/cgroup.h b/include/trace/events/cgroup.h
index 7f42a3de59e6b..dd7d7c9efecdf 100644
--- a/include/trace/events/cgroup.h
+++ b/include/trace/events/cgroup.h
@@ -59,8 +59,8 @@ DECLARE_EVENT_CLASS(cgroup,
 
 	TP_STRUCT__entry(
 		__field(	int,		root			)
-		__field(	int,		id			)
 		__field(	int,		level			)
+		__field(	u64,		id			)
 		__string(	path,		path			)
 	),
 
@@ -71,7 +71,7 @@ DECLARE_EVENT_CLASS(cgroup,
 		__assign_str(path, path);
 	),
 
-	TP_printk("root=%d id=%d level=%d path=%s",
+	TP_printk("root=%d id=%llu level=%d path=%s",
 		  __entry->root, __entry->id, __entry->level, __get_str(path))
 );
 
@@ -126,8 +126,8 @@ DECLARE_EVENT_CLASS(cgroup_migrate,
 
 	TP_STRUCT__entry(
 		__field(	int,		dst_root		)
-		__field(	int,		dst_id			)
 		__field(	int,		dst_level		)
+		__field(	u64,		dst_id			)
 		__field(	int,		pid			)
 		__string(	dst_path,	path			)
 		__string(	comm,		task->comm		)
@@ -142,7 +142,7 @@ DECLARE_EVENT_CLASS(cgroup_migrate,
 		__assign_str(comm, task->comm);
 	),
 
-	TP_printk("dst_root=%d dst_id=%d dst_level=%d dst_path=%s pid=%d comm=%s",
+	TP_printk("dst_root=%d dst_id=%llu dst_level=%d dst_path=%s pid=%d comm=%s",
 		  __entry->dst_root, __entry->dst_id, __entry->dst_level,
 		  __get_str(dst_path), __entry->pid, __get_str(comm))
 );
@@ -171,8 +171,8 @@ DECLARE_EVENT_CLASS(cgroup_event,
 
 	TP_STRUCT__entry(
 		__field(	int,		root			)
-		__field(	int,		id			)
 		__field(	int,		level			)
+		__field(	u64,		id			)
 		__string(	path,		path			)
 		__field(	int,		val			)
 	),
@@ -185,7 +185,7 @@ DECLARE_EVENT_CLASS(cgroup_event,
 		__entry->val = val;
 	),
 
-	TP_printk("root=%d id=%d level=%d path=%s val=%d",
+	TP_printk("root=%d id=%llu level=%d path=%s val=%d",
 		  __entry->root, __entry->id, __entry->level, __get_str(path),
 		  __entry->val)
 );
-- 
GitLab


From ef72449e2d794f8cbca0535fdf3a77a5cd9a84a7 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 23 Nov 2021 19:36:51 +0100
Subject: [PATCH 2990/4878] ACPI: EC: Rework flushing of EC work while
 suspended to idle

[ Upstream commit 4a9af6cac050dce2e895ec3205c4615383ad9112 ]

The flushing of pending work in the EC driver uses drain_workqueue()
to flush the event handling work that can requeue itself via
advance_transaction(), but this is problematic, because that
work may also be requeued from the query workqueue.

Namely, if an EC transaction is carried out during the execution of
a query handler, it involves calling advance_transaction() which
may queue up the event handling work again.  This causes the kernel
to complain about attempts to add a work item to the EC event
workqueue while it is being drained and worst-case it may cause a
valid event to be skipped.

To avoid this problem, introduce two new counters, events_in_progress
and queries_in_progress, incremented when a work item is queued on
the event workqueue or the query workqueue, respectively, and
decremented at the end of the corresponding work function, and make
acpi_ec_dispatch_gpe() the workqueues in a loop until the both of
these counters are zero (or system wakeup is pending) instead of
calling acpi_ec_flush_work().

At the same time, change __acpi_ec_flush_work() to call
flush_workqueue() instead of drain_workqueue() to flush the event
workqueue.

While at it, use the observation that the work item queued in
acpi_ec_query() cannot be pending at that time, because it is used
only once, to simplify the code in there.

Additionally, clean up a comment in acpi_ec_query() and adjust white
space in acpi_ec_event_processor().

Fixes: f0ac20c3f613 ("ACPI: EC: Fix flushing of pending work")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/ec.c       | 57 +++++++++++++++++++++++++++++++----------
 drivers/acpi/internal.h |  2 ++
 2 files changed, 45 insertions(+), 14 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index be3e0921a6c00..3f2e5ea9ab6b7 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -166,6 +166,7 @@ struct acpi_ec_query {
 	struct transaction transaction;
 	struct work_struct work;
 	struct acpi_ec_query_handler *handler;
+	struct acpi_ec *ec;
 };
 
 static int acpi_ec_query(struct acpi_ec *ec, u8 *data);
@@ -469,6 +470,7 @@ static void acpi_ec_submit_query(struct acpi_ec *ec)
 		ec_dbg_evt("Command(%s) submitted/blocked",
 			   acpi_ec_cmd_string(ACPI_EC_COMMAND_QUERY));
 		ec->nr_pending_queries++;
+		ec->events_in_progress++;
 		queue_work(ec_wq, &ec->work);
 	}
 }
@@ -535,7 +537,7 @@ static void acpi_ec_enable_event(struct acpi_ec *ec)
 #ifdef CONFIG_PM_SLEEP
 static void __acpi_ec_flush_work(void)
 {
-	drain_workqueue(ec_wq); /* flush ec->work */
+	flush_workqueue(ec_wq); /* flush ec->work */
 	flush_workqueue(ec_query_wq); /* flush queries */
 }
 
@@ -1116,7 +1118,7 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
 }
 EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
 
-static struct acpi_ec_query *acpi_ec_create_query(u8 *pval)
+static struct acpi_ec_query *acpi_ec_create_query(struct acpi_ec *ec, u8 *pval)
 {
 	struct acpi_ec_query *q;
 	struct transaction *t;
@@ -1124,11 +1126,13 @@ static struct acpi_ec_query *acpi_ec_create_query(u8 *pval)
 	q = kzalloc(sizeof (struct acpi_ec_query), GFP_KERNEL);
 	if (!q)
 		return NULL;
+
 	INIT_WORK(&q->work, acpi_ec_event_processor);
 	t = &q->transaction;
 	t->command = ACPI_EC_COMMAND_QUERY;
 	t->rdata = pval;
 	t->rlen = 1;
+	q->ec = ec;
 	return q;
 }
 
@@ -1145,13 +1149,21 @@ static void acpi_ec_event_processor(struct work_struct *work)
 {
 	struct acpi_ec_query *q = container_of(work, struct acpi_ec_query, work);
 	struct acpi_ec_query_handler *handler = q->handler;
+	struct acpi_ec *ec = q->ec;
 
 	ec_dbg_evt("Query(0x%02x) started", handler->query_bit);
+
 	if (handler->func)
 		handler->func(handler->data);
 	else if (handler->handle)
 		acpi_evaluate_object(handler->handle, NULL, NULL, NULL);
+
 	ec_dbg_evt("Query(0x%02x) stopped", handler->query_bit);
+
+	spin_lock_irq(&ec->lock);
+	ec->queries_in_progress--;
+	spin_unlock_irq(&ec->lock);
+
 	acpi_ec_delete_query(q);
 }
 
@@ -1161,7 +1173,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 *data)
 	int result;
 	struct acpi_ec_query *q;
 
-	q = acpi_ec_create_query(&value);
+	q = acpi_ec_create_query(ec, &value);
 	if (!q)
 		return -ENOMEM;
 
@@ -1183,19 +1195,20 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 *data)
 	}
 
 	/*
-	 * It is reported that _Qxx are evaluated in a parallel way on
-	 * Windows:
+	 * It is reported that _Qxx are evaluated in a parallel way on Windows:
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=94411
 	 *
-	 * Put this log entry before schedule_work() in order to make
-	 * it appearing before any other log entries occurred during the
-	 * work queue execution.
+	 * Put this log entry before queue_work() to make it appear in the log
+	 * before any other messages emitted during workqueue handling.
 	 */
 	ec_dbg_evt("Query(0x%02x) scheduled", value);
-	if (!queue_work(ec_query_wq, &q->work)) {
-		ec_dbg_evt("Query(0x%02x) overlapped", value);
-		result = -EBUSY;
-	}
+
+	spin_lock_irq(&ec->lock);
+
+	ec->queries_in_progress++;
+	queue_work(ec_query_wq, &q->work);
+
+	spin_unlock_irq(&ec->lock);
 
 err_exit:
 	if (result)
@@ -1253,6 +1266,10 @@ static void acpi_ec_event_handler(struct work_struct *work)
 	ec_dbg_evt("Event stopped");
 
 	acpi_ec_check_event(ec);
+
+	spin_lock_irqsave(&ec->lock, flags);
+	ec->events_in_progress--;
+	spin_unlock_irqrestore(&ec->lock, flags);
 }
 
 static void acpi_ec_handle_interrupt(struct acpi_ec *ec)
@@ -2034,6 +2051,7 @@ void acpi_ec_set_gpe_wake_mask(u8 action)
 
 bool acpi_ec_dispatch_gpe(void)
 {
+	bool work_in_progress;
 	u32 ret;
 
 	if (!first_ec)
@@ -2054,8 +2072,19 @@ bool acpi_ec_dispatch_gpe(void)
 	if (ret == ACPI_INTERRUPT_HANDLED)
 		pm_pr_dbg("ACPI EC GPE dispatched\n");
 
-	/* Flush the event and query workqueues. */
-	acpi_ec_flush_work();
+	/* Drain EC work. */
+	do {
+		acpi_ec_flush_work();
+
+		pm_pr_dbg("ACPI EC work flushed\n");
+
+		spin_lock_irq(&first_ec->lock);
+
+		work_in_progress = first_ec->events_in_progress +
+			first_ec->queries_in_progress > 0;
+
+		spin_unlock_irq(&first_ec->lock);
+	} while (work_in_progress && !pm_wakeup_pending());
 
 	return false;
 }
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index a958ad60a3394..125e4901c9b47 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -184,6 +184,8 @@ struct acpi_ec {
 	struct work_struct work;
 	unsigned long timestamp;
 	unsigned long nr_pending_queries;
+	unsigned int events_in_progress;
+	unsigned int queries_in_progress;
 	bool busy_polling;
 	unsigned int polling_guard;
 };
-- 
GitLab


From 96e05d2d9370557a0456096907cc6c0fcfbf892f Mon Sep 17 00:00:00 2001
From: Paul Gerber <Paul.Gerber@tq-group.com>
Date: Mon, 22 Nov 2021 12:42:25 +0100
Subject: [PATCH 2991/4878] thermal/drivers/imx8mm: Enable ADC when enabling
 monitor

[ Upstream commit 3de89d8842a2b5d3dd22ebf97dd561ae0a330948 ]

The i.MX 8MP has a ADC_PD bit in the TMU_TER register that controls the
operating mode of the ADC:
* 0 means normal operating mode
* 1 means power down mode

When enabling/disabling the TMU, the ADC operating mode must be set
accordingly.

i.MX 8M Mini & Nano are lacking this bit.

Signed-off-by: Paul Gerber <Paul.Gerber@tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Fixes: 2b8f1f0337c5 ("thermal: imx8mm: Add i.MX8MP support")
Link: https://lore.kernel.org/r/20211122114225.196280-1-alexander.stein@ew.tq-group.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/imx8mm_thermal.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/thermal/imx8mm_thermal.c b/drivers/thermal/imx8mm_thermal.c
index a1e4f9bb4cb01..0f4cabd2a8c62 100644
--- a/drivers/thermal/imx8mm_thermal.c
+++ b/drivers/thermal/imx8mm_thermal.c
@@ -21,6 +21,7 @@
 #define TPS			0x4
 #define TRITSR			0x20	/* TMU immediate temp */
 
+#define TER_ADC_PD		BIT(30)
 #define TER_EN			BIT(31)
 #define TRITSR_TEMP0_VAL_MASK	0xff
 #define TRITSR_TEMP1_VAL_MASK	0xff0000
@@ -113,6 +114,8 @@ static void imx8mm_tmu_enable(struct imx8mm_tmu *tmu, bool enable)
 
 	val = readl_relaxed(tmu->base + TER);
 	val = enable ? (val | TER_EN) : (val & ~TER_EN);
+	if (tmu->socdata->version == TMU_VER2)
+		val = enable ? (val & ~TER_ADC_PD) : (val | TER_ADC_PD);
 	writel_relaxed(val, tmu->base + TER);
 }
 
-- 
GitLab


From 3ca1b3b82fe71a6c52ee5f9737e90a50873a37e9 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Fri, 3 Dec 2021 00:17:36 +0800
Subject: [PATCH 2992/4878] drm/amdgpu: Fix a NULL pointer dereference in
 amdgpu_connector_lcd_native_mode()

[ Upstream commit b220110e4cd442156f36e1d9b4914bb9e87b0d00 ]

In amdgpu_connector_lcd_native_mode(), the return value of
drm_mode_duplicate() is assigned to mode, and there is a dereference
of it in amdgpu_connector_lcd_native_mode(), which will lead to a NULL
pointer dereference on failure of drm_mode_duplicate().

Fix this bug add a check of mode.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_DRM_AMDGPU=m show no new warnings, and
our static analyzer no longer warns about this code.

Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 0de66f59adb8a..df1f9b88a53f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -387,6 +387,9 @@ amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
 	    native_mode->vdisplay != 0 &&
 	    native_mode->clock != 0) {
 		mode = drm_mode_duplicate(dev, native_mode);
+		if (!mode)
+			return NULL;
+
 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 		drm_mode_set_name(mode);
 
@@ -401,6 +404,9 @@ amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
 		 * simpler.
 		 */
 		mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
+		if (!mode)
+			return NULL;
+
 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 		DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
 	}
-- 
GitLab


From f277978d6c463942e1bd0137053f74ae4d6892af Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Wed, 1 Dec 2021 23:13:10 +0800
Subject: [PATCH 2993/4878] drm/radeon/radeon_kms: Fix a NULL pointer
 dereference in radeon_driver_open_kms()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit ab50cb9df8896b39aae65c537a30de2c79c19735 ]

In radeon_driver_open_kms(), radeon_vm_bo_add() is assigned to
vm->ib_bo_va and passes and used in radeon_vm_bo_set_addr(). In
radeon_vm_bo_set_addr(), there is a dereference of vm->ib_bo_va,
which could lead to a NULL pointer dereference on failure of
radeon_vm_bo_add().

Fix this bug by adding a check of vm->ib_bo_va.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_DRM_RADEON=m show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: cc9e67e3d700 ("drm/radeon: fix VM IB handling")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/radeon/radeon_kms.c | 36 ++++++++++++++++-------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 8c0a572940e82..204634b239283 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -634,6 +634,8 @@ void radeon_driver_lastclose_kms(struct drm_device *dev)
 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 {
 	struct radeon_device *rdev = dev->dev_private;
+	struct radeon_fpriv *fpriv;
+	struct radeon_vm *vm;
 	int r;
 
 	file_priv->driver_priv = NULL;
@@ -646,8 +648,6 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 
 	/* new gpu have virtual address space support */
 	if (rdev->family >= CHIP_CAYMAN) {
-		struct radeon_fpriv *fpriv;
-		struct radeon_vm *vm;
 
 		fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
 		if (unlikely(!fpriv)) {
@@ -658,35 +658,39 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 		if (rdev->accel_working) {
 			vm = &fpriv->vm;
 			r = radeon_vm_init(rdev, vm);
-			if (r) {
-				kfree(fpriv);
-				goto out_suspend;
-			}
+			if (r)
+				goto out_fpriv;
 
 			r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
-			if (r) {
-				radeon_vm_fini(rdev, vm);
-				kfree(fpriv);
-				goto out_suspend;
-			}
+			if (r)
+				goto out_vm_fini;
 
 			/* map the ib pool buffer read only into
 			 * virtual address space */
 			vm->ib_bo_va = radeon_vm_bo_add(rdev, vm,
 							rdev->ring_tmp_bo.bo);
+			if (!vm->ib_bo_va) {
+				r = -ENOMEM;
+				goto out_vm_fini;
+			}
+
 			r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
 						  RADEON_VA_IB_OFFSET,
 						  RADEON_VM_PAGE_READABLE |
 						  RADEON_VM_PAGE_SNOOPED);
-			if (r) {
-				radeon_vm_fini(rdev, vm);
-				kfree(fpriv);
-				goto out_suspend;
-			}
+			if (r)
+				goto out_vm_fini;
 		}
 		file_priv->driver_priv = fpriv;
 	}
 
+	if (!r)
+		goto out_suspend;
+
+out_vm_fini:
+	radeon_vm_fini(rdev, vm);
+out_fpriv:
+	kfree(fpriv);
 out_suspend:
 	pm_runtime_mark_last_busy(dev->dev);
 	pm_runtime_put_autosuspend(dev->dev);
-- 
GitLab


From 2dcfa3c76596cdf4c3911bc11762f1ce80716e53 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Fri, 12 Nov 2021 22:36:38 -0600
Subject: [PATCH 2994/4878] arm64: dts: ti: k3-j7200: Fix the L2 cache sets

[ Upstream commit d0c826106f3fc11ff97285102b576b65576654ae ]

A72's L2 cache[1] on J7200[2] is 1MB. A72's L2 is fixed line length of
64 bytes and 16-way set-associative cache structure.

1MB of L2 / 64 (line length) = 16384 ways
16384 ways / 16 = 1024 sets

Fix the l2 cache-sets.

[1] https://developer.arm.com/documentation/100095/0003/Level-2-Memory-System/About-the-L2-memory-system
[2] https://www.ti.com/lit/pdf/spruiu1

Fixes: d361ed88455f ("arm64: dts: ti: Add support for J7200 SoC")
Reported-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211113043638.4358-1-nm@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j7200.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index 66169bcf7c9a4..081b8f3d44c44 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -84,7 +84,7 @@
 		cache-level = <2>;
 		cache-size = <0x100000>;
 		cache-line-size = <64>;
-		cache-sets = <2048>;
+		cache-sets = <1024>;
 		next-level-cache = <&msmc_l3>;
 	};
 
-- 
GitLab


From 75919207c16a9164712cd3e31356216f4f8ef9ab Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Fri, 12 Nov 2021 22:36:39 -0600
Subject: [PATCH 2995/4878] arm64: dts: ti: k3-j721e: Fix the L2 cache sets

[ Upstream commit e9ba3a5bc6fdc2c796c69fdaf5ed6c9957cf9f9d ]

A72's L2 cache[1] on J721e[2] is 1MB. A72's L2 is fixed line length of
64 bytes and 16-way set-associative cache structure.

1MB of L2 / 64 (line length) = 16384 ways
16384 ways / 16 = 1024 sets

Fix the l2 cache-sets.

[1] https://developer.arm.com/documentation/100095/0003/Level-2-Memory-System/About-the-L2-memory-system
[2] http://www.ti.com/lit/pdf/spruil1

Fixes: 2d87061e70de ("arm64: dts: ti: Add Support for J721E SoC")
Reported-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211113043639.4413-1-nm@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j721e.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
index d1ef9fbe4981d..a199227327ed2 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
@@ -85,7 +85,7 @@
 		cache-level = <2>;
 		cache-size = <0x100000>;
 		cache-line-size = <64>;
-		cache-sets = <2048>;
+		cache-sets = <1024>;
 		next-level-cache = <&msmc_l3>;
 	};
 
-- 
GitLab


From a001a15ab3748deaf984076f0c4d96810258e182 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Fri, 12 Nov 2021 22:26:40 -0600
Subject: [PATCH 2996/4878] arm64: dts: ti: k3-j7200: Correct the d-cache-sets
 info

[ Upstream commit a172c86931709d6663318609d71a811333bdf4b0 ]

A72 Cluster (chapter 1.3.1 [1]) has 48KB Icache, 32KB Dcache and 1MB L2 Cache
 - ICache is 3-way set-associative
 - Dcache is 2-way set-associative
 - Line size are 64bytes

32KB (Dcache)/64 (fixed line length of 64 bytes) = 512 ways
512 ways / 2 (Dcache is 2-way per set) = 256 sets.

So, correct the d-cache-sets info.

[1] https://www.ti.com/lit/pdf/spruiu1

Fixes: d361ed88455f ("arm64: dts: ti: Add support for J7200 SoC")
Reported-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211113042640.30955-1-nm@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j7200.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index 081b8f3d44c44..03a9623f0f956 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -60,7 +60,7 @@
 			i-cache-sets = <256>;
 			d-cache-size = <0x8000>;
 			d-cache-line-size = <64>;
-			d-cache-sets = <128>;
+			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
 		};
 
@@ -74,7 +74,7 @@
 			i-cache-sets = <256>;
 			d-cache-size = <0x8000>;
 			d-cache-line-size = <64>;
-			d-cache-sets = <128>;
+			d-cache-sets = <256>;
 			next-level-cache = <&L2_0>;
 		};
 	};
-- 
GitLab


From 8409d2394cca3cef7f625d8a74702f1d600eee3e Mon Sep 17 00:00:00 2001
From: Lizhi Hou <lizhi.hou@xilinx.com>
Date: Mon, 29 Nov 2021 12:23:02 -0800
Subject: [PATCH 2997/4878] tty: serial: uartlite: allow 64 bit address

[ Upstream commit 3672fb65155530b5eea6225685c75329b6debec3 ]

The base address of uartlite registers could be 64 bit address which is from
device resource. When ulite_probe() calls ulite_assign(), this 64 bit
address is casted to 32-bit. The fix is to replace "u32" type with
"phys_addr_t" type for the base address in ulite_assign() argument list.

Fixes: 8fa7b6100693 ("[POWERPC] Uartlite: Separate the bus binding from the driver proper")
Signed-off-by: Lizhi Hou <lizhi.hou@xilinx.com>
Link: https://lore.kernel.org/r/20211129202302.1319033-1-lizhi.hou@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/uartlite.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index 7081ab322b402..48923cd8c07d1 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -615,7 +615,7 @@ static struct uart_driver ulite_uart_driver = {
  *
  * Returns: 0 on success, <0 otherwise
  */
-static int ulite_assign(struct device *dev, int id, u32 base, int irq,
+static int ulite_assign(struct device *dev, int id, phys_addr_t base, int irq,
 			struct uartlite_data *pdata)
 {
 	struct uart_port *port;
-- 
GitLab


From 45bbe008013fb93b16f28d0eacbc8810c949e2b3 Mon Sep 17 00:00:00 2001
From: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Date: Mon, 29 Nov 2021 18:42:38 +0100
Subject: [PATCH 2998/4878] serial: amba-pl011: do not request memory region
 twice
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit d1180405c7b5c7a1c6bde79d5fc24fe931430737 ]

With commit 3873e2d7f63a ("drivers: PL011: refactor pl011_probe()") the
function devm_ioremap() called from pl011_setup_port() was replaced with
devm_ioremap_resource(). Since this function not only remaps but also
requests the ports io memory region it now collides with the .config_port()
callback which requests the same region at uart port registration.

Since devm_ioremap_resource() already claims the memory successfully, the
request in .config_port() fails.

Later at uart port deregistration the attempt to release the unclaimed
memory also fails. The failure results in a “Trying to free nonexistent
resource" warning.

Fix these issues by removing the callbacks that implement the redundant
memory allocation/release. Also make sure that changing the drivers io
memory base address via TIOCSSERIAL is not allowed any more.

Fixes: 3873e2d7f63a ("drivers: PL011: refactor pl011_probe()")
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Link: https://lore.kernel.org/r/20211129174238.8333-1-LinoSanfilippo@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/amba-pl011.c | 27 +++------------------------
 1 file changed, 3 insertions(+), 24 deletions(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index b3cddcdcbdad0..61183e7ff0097 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2083,32 +2083,13 @@ static const char *pl011_type(struct uart_port *port)
 	return uap->port.type == PORT_AMBA ? uap->type : NULL;
 }
 
-/*
- * Release the memory region(s) being used by 'port'
- */
-static void pl011_release_port(struct uart_port *port)
-{
-	release_mem_region(port->mapbase, SZ_4K);
-}
-
-/*
- * Request the memory region(s) being used by 'port'
- */
-static int pl011_request_port(struct uart_port *port)
-{
-	return request_mem_region(port->mapbase, SZ_4K, "uart-pl011")
-			!= NULL ? 0 : -EBUSY;
-}
-
 /*
  * Configure/autoconfigure the port.
  */
 static void pl011_config_port(struct uart_port *port, int flags)
 {
-	if (flags & UART_CONFIG_TYPE) {
+	if (flags & UART_CONFIG_TYPE)
 		port->type = PORT_AMBA;
-		pl011_request_port(port);
-	}
 }
 
 /*
@@ -2123,6 +2104,8 @@ static int pl011_verify_port(struct uart_port *port, struct serial_struct *ser)
 		ret = -EINVAL;
 	if (ser->baud_base < 9600)
 		ret = -EINVAL;
+	if (port->mapbase != (unsigned long) ser->iomem_base)
+		ret = -EINVAL;
 	return ret;
 }
 
@@ -2140,8 +2123,6 @@ static const struct uart_ops amba_pl011_pops = {
 	.flush_buffer	= pl011_dma_flush_buffer,
 	.set_termios	= pl011_set_termios,
 	.type		= pl011_type,
-	.release_port	= pl011_release_port,
-	.request_port	= pl011_request_port,
 	.config_port	= pl011_config_port,
 	.verify_port	= pl011_verify_port,
 #ifdef CONFIG_CONSOLE_POLL
@@ -2171,8 +2152,6 @@ static const struct uart_ops sbsa_uart_pops = {
 	.shutdown	= sbsa_uart_shutdown,
 	.set_termios	= sbsa_uart_set_termios,
 	.type		= pl011_type,
-	.release_port	= pl011_release_port,
-	.request_port	= pl011_request_port,
 	.config_port	= pl011_config_port,
 	.verify_port	= pl011_verify_port,
 #ifdef CONFIG_CONSOLE_POLL
-- 
GitLab


From 04fdd426cef2acfec33c703c700bb1d8862c7804 Mon Sep 17 00:00:00 2001
From: Tasos Sahanidis <tasos@tasossah.com>
Date: Fri, 3 Sep 2021 09:47:58 +0300
Subject: [PATCH 2999/4878] floppy: Fix hang in watchdog when disk is ejected

[ Upstream commit fb48febce7e30baed94dd791e19521abd2c3fd83 ]

When the watchdog detects a disk change, it calls cancel_activity(),
which in turn tries to cancel the fd_timer delayed work.

In the above scenario, fd_timer_fn is set to fd_watchdog(), meaning
it is trying to cancel its own work.
This results in a hang as cancel_delayed_work_sync() is waiting for the
watchdog (itself) to return, which never happens.

This can be reproduced relatively consistently by attempting to read a
broken floppy, and ejecting it while IO is being attempted and retried.

To resolve this, this patch calls cancel_delayed_work() instead, which
cancels the work without waiting for the watchdog to return and finish.

Before this regression was introduced, the code in this section used
del_timer(), and not del_timer_sync() to delete the watchdog timer.

Link: https://lore.kernel.org/r/399e486c-6540-db27-76aa-7a271b061f76@tasossah.com
Fixes: 070ad7e793dc ("floppy: convert to delayed work and single-thread wq")
Signed-off-by: Tasos Sahanidis <tasos@tasossah.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/floppy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 7df79ae6b0a1e..eb4f841902aee 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -1015,7 +1015,7 @@ static DECLARE_DELAYED_WORK(fd_timer, fd_timer_workfn);
 static void cancel_activity(void)
 {
 	do_floppy = NULL;
-	cancel_delayed_work_sync(&fd_timer);
+	cancel_delayed_work(&fd_timer);
 	cancel_work_sync(&floppy_work);
 }
 
-- 
GitLab


From 49f5cd2b7c417a1dc71d45a866ea14b17ef72c4f Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Thu, 2 Dec 2021 11:07:02 +0800
Subject: [PATCH 3000/4878] staging: rtl8192e: return error code from
 rtllib_softmac_init()

[ Upstream commit 68bf78ff59a0891eb1239948e94ce10f73a9dd30 ]

If it fails to allocate 'dot11d_info', rtllib_softmac_init()
should return error code. And remove unneccessary error message.

Fixes: 94a799425eee ("From: wlanfae <wlanfae@realtek.com>")
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211202030704.2425621-2-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/rtl8192e/rtllib.h         | 2 +-
 drivers/staging/rtl8192e/rtllib_softmac.c | 6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index 4cabaf21c1ca0..367db4acc7852 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -1982,7 +1982,7 @@ void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee);
 void rtllib_stop_send_beacons(struct rtllib_device *ieee);
 void notify_wx_assoc_event(struct rtllib_device *ieee);
 void rtllib_start_ibss(struct rtllib_device *ieee);
-void rtllib_softmac_init(struct rtllib_device *ieee);
+int rtllib_softmac_init(struct rtllib_device *ieee);
 void rtllib_softmac_free(struct rtllib_device *ieee);
 void rtllib_disassociate(struct rtllib_device *ieee);
 void rtllib_stop_scan(struct rtllib_device *ieee);
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 2c752ba5a802a..e8e72f79ca007 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -2953,7 +2953,7 @@ void rtllib_start_protocol(struct rtllib_device *ieee)
 	}
 }
 
-void rtllib_softmac_init(struct rtllib_device *ieee)
+int rtllib_softmac_init(struct rtllib_device *ieee)
 {
 	int i;
 
@@ -2964,7 +2964,8 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 		ieee->seq_ctrl[i] = 0;
 	ieee->dot11d_info = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
 	if (!ieee->dot11d_info)
-		netdev_err(ieee->dev, "Can't alloc memory for DOT11D\n");
+		return -ENOMEM;
+
 	ieee->LinkDetectInfo.SlotIndex = 0;
 	ieee->LinkDetectInfo.SlotNum = 2;
 	ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
@@ -3030,6 +3031,7 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 
 	tasklet_setup(&ieee->ps_task, rtllib_sta_ps);
 
+	return 0;
 }
 
 void rtllib_softmac_free(struct rtllib_device *ieee)
-- 
GitLab


From 2a7edcb3ef72ec5fc9bb3e22e01dd9553becd7ac Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Thu, 2 Dec 2021 11:07:03 +0800
Subject: [PATCH 3001/4878] staging: rtl8192e: rtllib_module: fix error handle
 case in alloc_rtllib()

[ Upstream commit e730cd57ac2dfe94bca0f14a3be8e1b21de41a9c ]

Some variables are leaked in the error handling in alloc_rtllib(), free
the variables in the error path.

Fixes: 94a799425eee ("From: wlanfae <wlanfae@realtek.com>")
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20211202030704.2425621-3-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/rtl8192e/rtllib_module.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c
index 64d9feee1f392..f00ac94b2639b 100644
--- a/drivers/staging/rtl8192e/rtllib_module.c
+++ b/drivers/staging/rtl8192e/rtllib_module.c
@@ -88,7 +88,7 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 	err = rtllib_networks_allocate(ieee);
 	if (err) {
 		pr_err("Unable to allocate beacon storage: %d\n", err);
-		goto failed;
+		goto free_netdev;
 	}
 	rtllib_networks_initialize(ieee);
 
@@ -121,11 +121,13 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 	ieee->hwsec_active = 0;
 
 	memset(ieee->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
-	rtllib_softmac_init(ieee);
+	err = rtllib_softmac_init(ieee);
+	if (err)
+		goto free_crypt_info;
 
 	ieee->pHTInfo = kzalloc(sizeof(struct rt_hi_throughput), GFP_KERNEL);
 	if (!ieee->pHTInfo)
-		return NULL;
+		goto free_softmac;
 
 	HTUpdateDefaultSetting(ieee);
 	HTInitializeHTInfo(ieee);
@@ -141,8 +143,14 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 
 	return dev;
 
- failed:
+free_softmac:
+	rtllib_softmac_free(ieee);
+free_crypt_info:
+	lib80211_crypt_info_free(&ieee->crypt_info);
+	rtllib_networks_free(ieee);
+free_netdev:
 	free_netdev(dev);
+
 	return NULL;
 }
 EXPORT_SYMBOL(alloc_rtllib);
-- 
GitLab


From ec121517ac8d95a67a1b6ee6dc3102d64a4aa87b Mon Sep 17 00:00:00 2001
From: Sean Wang <sean.wang@mediatek.com>
Date: Thu, 2 Dec 2021 02:02:47 +0800
Subject: [PATCH 3002/4878] Bluetooth: btmtksdio: fix resume failure

[ Upstream commit 561ae1d46a8ddcbc13162d5771f5ed6c8249e730 ]

btmtksdio have to rely on MMC_PM_KEEP_POWER in pm_flags to avoid that
SDIO power is being shut off during the device is in suspend. That fixes
the SDIO command fails to access the bus after the device is resumed.

Fixes: 7f3c563c575e7 ("Bluetooth: btmtksdio: Add runtime PM support to SDIO based Bluetooth")
Co-developed-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/btmtksdio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 5f9f027956317..74856a5862162 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1042,6 +1042,8 @@ static int btmtksdio_runtime_suspend(struct device *dev)
 	if (!bdev)
 		return 0;
 
+	sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
 	sdio_claim_host(bdev->func);
 
 	sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);
-- 
GitLab


From d7d5b3bc5263cb82c5673e5972aba543f96199fa Mon Sep 17 00:00:00 2001
From: Vincent Donnefort <vincent.donnefort@arm.com>
Date: Wed, 1 Dec 2021 14:34:50 +0000
Subject: [PATCH 3003/4878] sched/fair: Fix detection of per-CPU kthreads
 waking a task

[ Upstream commit 8b4e74ccb582797f6f0b0a50372ebd9fd2372a27 ]

select_idle_sibling() has a special case for tasks woken up by a per-CPU
kthread, where the selected CPU is the previous one. However, the current
condition for this exit path is incomplete. A task can wake up from an
interrupt context (e.g. hrtimer), while a per-CPU kthread is running. A
such scenario would spuriously trigger the special case described above.
Also, a recent change made the idle task like a regular per-CPU kthread,
hence making that situation more likely to happen
(is_per_cpu_kthread(swapper) being true now).

Checking for task context makes sure select_idle_sibling() will not
interpret a wake up from any other context as a wake up by a per-CPU
kthread.

Fixes: 52262ee567ad ("sched/fair: Allow a per-CPU kthread waking a task to stack on the same CPU, to fix XFS performance regression")
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lore.kernel.org/r/20211201143450.479472-1-vincent.donnefort@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/fair.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c004e3b89c324..a7589552be5fc 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6284,6 +6284,7 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target)
 	 * pattern is IO completions.
 	 */
 	if (is_per_cpu_kthread(current) &&
+	    in_task() &&
 	    prev == smp_processor_id() &&
 	    this_rq()->nr_running <= 1) {
 		return prev;
-- 
GitLab


From b77ef5b4ead6a17baa1728d98c1f6a4ba1dd44c8 Mon Sep 17 00:00:00 2001
From: Vincent Donnefort <vincent.donnefort@arm.com>
Date: Mon, 29 Nov 2021 17:31:15 +0000
Subject: [PATCH 3004/4878] sched/fair: Fix per-CPU kthread and wakee stacking
 for asym CPU capacity

[ Upstream commit 014ba44e8184e1acf93e0cbb7089ee847802f8f0 ]

select_idle_sibling() has a special case for tasks woken up by a per-CPU
kthread where the selected CPU is the previous one. For asymmetric CPU
capacity systems, the assumption was that the wakee couldn't have a
bigger utilization during task placement than it used to have during the
last activation. That was not considering uclamp.min which can completely
change between two task activations and as a consequence mandates the
fitness criterion asym_fits_capacity(), even for the exit path described
above.

Fixes: b4c9c9f15649 ("sched/fair: Prefer prev cpu in asymmetric wakeup path")
Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/20211129173115.4006346-1-vincent.donnefort@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/fair.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index a7589552be5fc..2a33cb5a10e59 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6286,7 +6286,8 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target)
 	if (is_per_cpu_kthread(current) &&
 	    in_task() &&
 	    prev == smp_processor_id() &&
-	    this_rq()->nr_running <= 1) {
+	    this_rq()->nr_running <= 1 &&
+	    asym_fits_capacity(task_util, prev)) {
 		return prev;
 	}
 
-- 
GitLab


From 218d952160f71bfc85cbad4a4834e0de306e4b77 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@kernel.org>
Date: Wed, 1 Dec 2021 10:10:29 -0800
Subject: [PATCH 3005/4878] bpf: Adjust BTF log size limit.

[ Upstream commit c5a2d43e998a821701029f23e25b62f9188e93ff ]

Make BTF log size limit to be the same as the verifier log size limit.
Otherwise tools that progressively increase log size and use the same log
for BTF loading and program loading will be hitting hard to debug EINVAL.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211201181040.23337-7-alexei.starovoitov@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/btf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index aaf2fbaa0cc76..72534a6f4b96e 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -4135,7 +4135,7 @@ static struct btf *btf_parse(void __user *btf_data, u32 btf_data_size,
 		log->len_total = log_size;
 
 		/* log attributes have to be sane */
-		if (log->len_total < 128 || log->len_total > UINT_MAX >> 8 ||
+		if (log->len_total < 128 || log->len_total > UINT_MAX >> 2 ||
 		    !log->level || !log->ubuf) {
 			err = -EINVAL;
 			goto errout;
-- 
GitLab


From 924886fa2246d24d0f0f80096300f607f1b7a829 Mon Sep 17 00:00:00 2001
From: Hou Tao <houtao1@huawei.com>
Date: Fri, 3 Dec 2021 13:30:01 +0800
Subject: [PATCH 3006/4878] bpf: Disallow BPF_LOG_KERNEL log level for
 bpf(BPF_BTF_LOAD)

[ Upstream commit 866de407444398bc8140ea70de1dba5f91cc34ac ]

BPF_LOG_KERNEL is only used internally, so disallow bpf_btf_load()
to set log level as BPF_LOG_KERNEL. The same checking has already
been done in bpf_check(), so factor out a helper to check the
validity of log attributes and use it in both places.

Fixes: 8580ac9404f6 ("bpf: Process in-kernel BTF")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20211203053001.740945-1-houtao1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/bpf_verifier.h | 7 +++++++
 kernel/bpf/btf.c             | 3 +--
 kernel/bpf/verifier.c        | 6 +++---
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h
index 6e330ff2f28df..391bc1480dfb1 100644
--- a/include/linux/bpf_verifier.h
+++ b/include/linux/bpf_verifier.h
@@ -367,6 +367,13 @@ static inline bool bpf_verifier_log_needed(const struct bpf_verifier_log *log)
 		 log->level == BPF_LOG_KERNEL);
 }
 
+static inline bool
+bpf_verifier_log_attr_valid(const struct bpf_verifier_log *log)
+{
+	return log->len_total >= 128 && log->len_total <= UINT_MAX >> 2 &&
+	       log->level && log->ubuf && !(log->level & ~BPF_LOG_MASK);
+}
+
 #define BPF_MAX_SUBPROGS 256
 
 struct bpf_subprog_info {
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 72534a6f4b96e..dc497eaf22663 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -4135,8 +4135,7 @@ static struct btf *btf_parse(void __user *btf_data, u32 btf_data_size,
 		log->len_total = log_size;
 
 		/* log attributes have to be sane */
-		if (log->len_total < 128 || log->len_total > UINT_MAX >> 2 ||
-		    !log->level || !log->ubuf) {
+		if (!bpf_verifier_log_attr_valid(log)) {
 			err = -EINVAL;
 			goto errout;
 		}
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index b43c9de34a2c2..c623c3e549210 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -12349,11 +12349,11 @@ int bpf_check(struct bpf_prog **prog, union bpf_attr *attr,
 		log->ubuf = (char __user *) (unsigned long) attr->log_buf;
 		log->len_total = attr->log_size;
 
-		ret = -EINVAL;
 		/* log attributes have to be sane */
-		if (log->len_total < 128 || log->len_total > UINT_MAX >> 2 ||
-		    !log->level || !log->ubuf || log->level & ~BPF_LOG_MASK)
+		if (!bpf_verifier_log_attr_valid(log)) {
+			ret = -EINVAL;
 			goto err_unlock;
+		}
 	}
 
 	if (IS_ERR(btf_vmlinux)) {
-- 
GitLab


From 69e402a985418d5fc609730f5f8a81ca514bb823 Mon Sep 17 00:00:00 2001
From: Kajol Jain <kjain@linux.ibm.com>
Date: Mon, 6 Dec 2021 13:03:15 +0530
Subject: [PATCH 3007/4878] bpf: Remove config check to enable bpf support for
 branch records

[ Upstream commit db52f57211b4e45f0ebb274e2c877b211dc18591 ]

Branch data available to BPF programs can be very useful to get stack traces
out of userspace application.

Commit fff7b64355ea ("bpf: Add bpf_read_branch_records() helper") added BPF
support to capture branch records in x86. Enable this feature also for other
architectures as well by removing checks specific to x86.

If an architecture doesn't support branch records, bpf_read_branch_records()
still has appropriate checks and it will return an -EINVAL in that scenario.
Based on UAPI helper doc in include/uapi/linux/bpf.h, unsupported architectures
should return -ENOENT in such case. Hence, update the appropriate check to
return -ENOENT instead.

Selftest 'perf_branches' result on power9 machine which has the branch stacks
support:

 - Before this patch:

  [command]# ./test_progs -t perf_branches
   #88/1 perf_branches/perf_branches_hw:FAIL
   #88/2 perf_branches/perf_branches_no_hw:OK
   #88 perf_branches:FAIL
  Summary: 0/1 PASSED, 0 SKIPPED, 1 FAILED

 - After this patch:

  [command]# ./test_progs -t perf_branches
   #88/1 perf_branches/perf_branches_hw:OK
   #88/2 perf_branches/perf_branches_no_hw:OK
   #88 perf_branches:OK
  Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED

Selftest 'perf_branches' result on power9 machine which doesn't have branch
stack report:

 - After this patch:

  [command]# ./test_progs -t perf_branches
   #88/1 perf_branches/perf_branches_hw:SKIP
   #88/2 perf_branches/perf_branches_no_hw:OK
   #88 perf_branches:OK
  Summary: 1/1 PASSED, 1 SKIPPED, 0 FAILED

Fixes: fff7b64355eac ("bpf: Add bpf_read_branch_records() helper")
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211206073315.77432-1-kjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/bpf_trace.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index ba644760f5076..a9e074769881f 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -1517,9 +1517,6 @@ static const struct bpf_func_proto bpf_perf_prog_read_value_proto = {
 BPF_CALL_4(bpf_read_branch_records, struct bpf_perf_event_data_kern *, ctx,
 	   void *, buf, u32, size, u64, flags)
 {
-#ifndef CONFIG_X86
-	return -ENOENT;
-#else
 	static const u32 br_entry_size = sizeof(struct perf_branch_entry);
 	struct perf_branch_stack *br_stack = ctx->data->br_stack;
 	u32 to_copy;
@@ -1528,7 +1525,7 @@ BPF_CALL_4(bpf_read_branch_records, struct bpf_perf_event_data_kern *, ctx,
 		return -EINVAL;
 
 	if (unlikely(!br_stack))
-		return -EINVAL;
+		return -ENOENT;
 
 	if (flags & BPF_F_GET_BRANCH_RECORDS_SIZE)
 		return br_stack->nr * br_entry_size;
@@ -1540,7 +1537,6 @@ BPF_CALL_4(bpf_read_branch_records, struct bpf_perf_event_data_kern *, ctx,
 	memcpy(buf, br_stack->entries, to_copy);
 
 	return to_copy;
-#endif
 }
 
 static const struct bpf_func_proto bpf_read_branch_records_proto = {
-- 
GitLab


From 88ed31aab481e0451184924672afcbf484c5c3eb Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Fri, 19 Mar 2021 10:01:09 +0000
Subject: [PATCH 3008/4878] arm64: lib: Annotate {clear, copy}_page() as
 position-independent

[ Upstream commit 8d9902055c57548bb342dc3ca78caa21e9643024 ]

clear_page() and copy_page() are suitable for use outside of the kernel
address space, so annotate them as position-independent code.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210319100146.1149909-2-qperret@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/lib/clear_page.S | 4 ++--
 arch/arm64/lib/copy_page.S  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/lib/clear_page.S b/arch/arm64/lib/clear_page.S
index 073acbf02a7c8..b84b179edba3a 100644
--- a/arch/arm64/lib/clear_page.S
+++ b/arch/arm64/lib/clear_page.S
@@ -14,7 +14,7 @@
  * Parameters:
  *	x0 - dest
  */
-SYM_FUNC_START(clear_page)
+SYM_FUNC_START_PI(clear_page)
 	mrs	x1, dczid_el0
 	and	w1, w1, #0xf
 	mov	x2, #4
@@ -25,5 +25,5 @@ SYM_FUNC_START(clear_page)
 	tst	x0, #(PAGE_SIZE - 1)
 	b.ne	1b
 	ret
-SYM_FUNC_END(clear_page)
+SYM_FUNC_END_PI(clear_page)
 EXPORT_SYMBOL(clear_page)
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index e7a793961408d..29144f4cd4492 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -17,7 +17,7 @@
  *	x0 - dest
  *	x1 - src
  */
-SYM_FUNC_START(copy_page)
+SYM_FUNC_START_PI(copy_page)
 alternative_if ARM64_HAS_NO_HW_PREFETCH
 	// Prefetch three cache lines ahead.
 	prfm	pldl1strm, [x1, #128]
@@ -75,5 +75,5 @@ alternative_else_nop_endif
 	stnp	x16, x17, [x0, #112 - 256]
 
 	ret
-SYM_FUNC_END(copy_page)
+SYM_FUNC_END_PI(copy_page)
 EXPORT_SYMBOL(copy_page)
-- 
GitLab


From f0cb43a2c674a0b44418489deaa7ca2ca330283f Mon Sep 17 00:00:00 2001
From: Reiji Watanabe <reijiw@google.com>
Date: Sun, 5 Dec 2021 16:47:35 -0800
Subject: [PATCH 3009/4878] arm64: clear_page() shouldn't use DC ZVA when
 DCZID_EL0.DZP == 1

[ Upstream commit f0616abd4e67143b45b04b565839148458857347 ]

Currently, clear_page() uses DC ZVA instruction unconditionally.  But it
should make sure that DCZID_EL0.DZP, which indicates whether or not use
of DC ZVA instruction is prohibited, is zero when using the instruction.
Use STNP instead when DCZID_EL0.DZP == 1.

Fixes: f27bb139c387 ("arm64: Miscellaneous library functions")
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20211206004736.1520989-2-reijiw@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/lib/clear_page.S | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/lib/clear_page.S b/arch/arm64/lib/clear_page.S
index b84b179edba3a..1fd5d790ab800 100644
--- a/arch/arm64/lib/clear_page.S
+++ b/arch/arm64/lib/clear_page.S
@@ -16,6 +16,7 @@
  */
 SYM_FUNC_START_PI(clear_page)
 	mrs	x1, dczid_el0
+	tbnz	x1, #4, 2f	/* Branch if DC ZVA is prohibited */
 	and	w1, w1, #0xf
 	mov	x2, #4
 	lsl	x1, x2, x1
@@ -25,5 +26,14 @@ SYM_FUNC_START_PI(clear_page)
 	tst	x0, #(PAGE_SIZE - 1)
 	b.ne	1b
 	ret
+
+2:	stnp	xzr, xzr, [x0]
+	stnp	xzr, xzr, [x0, #16]
+	stnp	xzr, xzr, [x0, #32]
+	stnp	xzr, xzr, [x0, #48]
+	add	x0, x0, #64
+	tst	x0, #(PAGE_SIZE - 1)
+	b.ne	2b
+	ret
 SYM_FUNC_END_PI(clear_page)
 EXPORT_SYMBOL(clear_page)
-- 
GitLab


From df79d2bf95e0b490ad72f46d4b58581bd8f6fc7b Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Tue, 30 Nov 2021 16:38:05 +0100
Subject: [PATCH 3010/4878] media: dib8000: Fix a memleak in dib8000_init()

[ Upstream commit 8dbdcc7269a83305ee9d677b75064d3530a48ee2 ]

In dib8000_init(), the variable fe is not freed or passed out on the
failure of dib8000_identify(&state->i2c), which could lead to a memleak.

Fix this bug by adding a kfree of fe in the error path.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_DVB_DIB8000=m show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: 77e2c0f5d471 ("V4L/DVB (12900): DiB8000: added support for DiBcom ISDB-T/ISDB-Tsb demodulator DiB8000")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/dvb-frontends/dib8000.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/dib8000.c b/drivers/media/dvb-frontends/dib8000.c
index bb02354a48b81..d67f2dd997d06 100644
--- a/drivers/media/dvb-frontends/dib8000.c
+++ b/drivers/media/dvb-frontends/dib8000.c
@@ -4473,8 +4473,10 @@ static struct dvb_frontend *dib8000_init(struct i2c_adapter *i2c_adap, u8 i2c_ad
 
 	state->timf_default = cfg->pll->timf;
 
-	if (dib8000_identify(&state->i2c) == 0)
+	if (dib8000_identify(&state->i2c) == 0) {
+		kfree(fe);
 		goto error;
+	}
 
 	dibx000_init_i2c_master(&state->i2c_master, DIB8000, state->i2c.adap, state->i2c.addr);
 
-- 
GitLab


From 7009a5fbc589484c1b6e6e5ed1c47b64b62c5769 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Tue, 30 Nov 2021 17:34:44 +0100
Subject: [PATCH 3011/4878] media: saa7146: mxb: Fix a NULL pointer dereference
 in mxb_attach()

[ Upstream commit 0407c49ebe330333478440157c640fffd986f41b ]

In mxb_attach(dev, info), saa7146_vv_init() is called to allocate a
new memory for dev->vv_data. saa7146_vv_release() will be called on
failure of mxb_probe(dev). There is a dereference of dev->vv_data
in saa7146_vv_release(), which could lead to a NULL pointer dereference
on failure of saa7146_vv_init().

Fix this bug by adding a check of saa7146_vv_init().

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_VIDEO_MXB=m show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: 03b1930efd3c ("V4L/DVB: saa7146: fix regression of the av7110/budget-av driver")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/saa7146/mxb.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/saa7146/mxb.c b/drivers/media/pci/saa7146/mxb.c
index 73fc901ecf3db..bf0b9b0914cd5 100644
--- a/drivers/media/pci/saa7146/mxb.c
+++ b/drivers/media/pci/saa7146/mxb.c
@@ -683,10 +683,16 @@ static struct saa7146_ext_vv vv_data;
 static int mxb_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 {
 	struct mxb *mxb;
+	int ret;
 
 	DEB_EE("dev:%p\n", dev);
 
-	saa7146_vv_init(dev, &vv_data);
+	ret = saa7146_vv_init(dev, &vv_data);
+	if (ret) {
+		ERR("Error in saa7146_vv_init()");
+		return ret;
+	}
+
 	if (mxb_probe(dev)) {
 		saa7146_vv_release(dev);
 		return -1;
-- 
GitLab


From b4b911b1648cb8c4871c92d9e9b3c90d3e5ae7ae Mon Sep 17 00:00:00 2001
From: Robert Schlabbach <robert_s@gmx.net>
Date: Wed, 1 Dec 2021 22:08:43 +0100
Subject: [PATCH 3012/4878] media: si2157: Fix "warm" tuner state detection

[ Upstream commit a6441ea29cb2c9314654e093a1cd8020b9b851c8 ]

Commit e955f959ac52 ("media: si2157: Better check for running tuner in
init") completely broke the "warm" tuner detection of the si2157 driver
due to a simple endian error: The Si2157 CRYSTAL_TRIM property code is
0x0402 and needs to be transmitted LSB first. However, it was inserted
MSB first, causing the warm detection to always fail and spam the kernel
log with tuner initialization messages each time the DVB frontend
device was closed and reopened:

[  312.215682] si2157 16-0060: found a 'Silicon Labs Si2157-A30'
[  312.264334] si2157 16-0060: firmware version: 3.0.5
[  342.248593] si2157 16-0060: found a 'Silicon Labs Si2157-A30'
[  342.295743] si2157 16-0060: firmware version: 3.0.5
[  372.328574] si2157 16-0060: found a 'Silicon Labs Si2157-A30'
[  372.385035] si2157 16-0060: firmware version: 3.0.5

Also, the reinitializations were observed disturb _other_ tuners on
multi-tuner cards such as the Hauppauge WinTV-QuadHD, leading to missed
or errored packets when one of the other DVB frontend devices on that
card was opened.

Fix the order of the property code bytes to make the warm detection work
again, also reducing the tuner initialization message in the kernel log
to once per power-on, as well as fixing the interference with other
tuners.

Link: https://lore.kernel.org/linux-media/trinity-2a86eb9d-6264-4387-95e1-ba7b79a4050f-1638392923493@3c-app-gmx-bap03

Fixes: e955f959ac52 ("media: si2157: Better check for running tuner in init")
Reported-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Robert Schlabbach <robert_s@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/tuners/si2157.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index fefb2625f6558..75ddf7ed1faff 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -90,7 +90,7 @@ static int si2157_init(struct dvb_frontend *fe)
 	dev_dbg(&client->dev, "\n");
 
 	/* Try to get Xtal trim property, to verify tuner still running */
-	memcpy(cmd.args, "\x15\x00\x04\x02", 4);
+	memcpy(cmd.args, "\x15\x00\x02\x04", 4);
 	cmd.wlen = 4;
 	cmd.rlen = 4;
 	ret = si2157_cmd_execute(client, &cmd);
-- 
GitLab


From bb0579ab507707fdcb8ea8afeccaee5b1b71be36 Mon Sep 17 00:00:00 2001
From: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Date: Fri, 2 Apr 2021 22:47:55 -0700
Subject: [PATCH 3013/4878] wireless: iwlwifi: Fix a double free in
 iwl_txq_dyn_alloc_dma

[ Upstream commit f973795a8d19cbf3d03807704eb7c6ff65788d5a ]

In iwl_txq_dyn_alloc_dma, txq->tfds is freed at first time by:
iwl_txq_alloc()->goto err_free_tfds->dma_free_coherent(). But
it forgot to set txq->tfds to NULL.

Then the txq->tfds is freed again in iwl_txq_dyn_alloc_dma by:
goto error->iwl_txq_gen2_free_memory()->dma_free_coherent().

My patch sets txq->tfds to NULL after the first free to avoid the
double free.

Fixes: 0cd1ad2d7fd41 ("iwlwifi: move all bus-independent TX functions to common code")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Link: https://lore.kernel.org/r/20210403054755.4781-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/queue/tx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
index 9181221a2434d..0136df00ff6a6 100644
--- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
@@ -1148,6 +1148,7 @@ int iwl_txq_alloc(struct iwl_trans *trans, struct iwl_txq *txq, int slots_num,
 	return 0;
 err_free_tfds:
 	dma_free_coherent(trans->dev, tfd_sz, txq->tfds, txq->dma_addr);
+	txq->tfds = NULL;
 error:
 	if (txq->entries && cmd_queue)
 		for (i = 0; i < slots_num; i++)
-- 
GitLab


From 268f35245650b7135be7b3016ee1b2bf297e883d Mon Sep 17 00:00:00 2001
From: Li Hua <hucool.lihua@huawei.com>
Date: Fri, 3 Dec 2021 03:36:18 +0000
Subject: [PATCH 3014/4878] sched/rt: Try to restart rt period timer when rt
 runtime exceeded

[ Upstream commit 9b58e976b3b391c0cf02e038d53dd0478ed3013c ]

When rt_runtime is modified from -1 to a valid control value, it may
cause the task to be throttled all the time. Operations like the following
will trigger the bug. E.g:

  1. echo -1 > /proc/sys/kernel/sched_rt_runtime_us
  2. Run a FIFO task named A that executes while(1)
  3. echo 950000 > /proc/sys/kernel/sched_rt_runtime_us

When rt_runtime is -1, The rt period timer will not be activated when task
A enqueued. And then the task will be throttled after setting rt_runtime to
950,000. The task will always be throttled because the rt period timer is
not activated.

Fixes: d0b27fa77854 ("sched: rt-group: synchonised bandwidth period")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211203033618.11895-1-hucool.lihua@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/rt.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index b5cf418e2e3fe..41b14d9242039 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -52,11 +52,8 @@ void init_rt_bandwidth(struct rt_bandwidth *rt_b, u64 period, u64 runtime)
 	rt_b->rt_period_timer.function = sched_rt_period_timer;
 }
 
-static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
+static inline void do_start_rt_bandwidth(struct rt_bandwidth *rt_b)
 {
-	if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
-		return;
-
 	raw_spin_lock(&rt_b->rt_runtime_lock);
 	if (!rt_b->rt_period_active) {
 		rt_b->rt_period_active = 1;
@@ -75,6 +72,14 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
 	raw_spin_unlock(&rt_b->rt_runtime_lock);
 }
 
+static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
+{
+	if (!rt_bandwidth_enabled() || rt_b->rt_runtime == RUNTIME_INF)
+		return;
+
+	do_start_rt_bandwidth(rt_b);
+}
+
 void init_rt_rq(struct rt_rq *rt_rq)
 {
 	struct rt_prio_array *array;
@@ -1022,13 +1027,17 @@ static void update_curr_rt(struct rq *rq)
 
 	for_each_sched_rt_entity(rt_se) {
 		struct rt_rq *rt_rq = rt_rq_of_se(rt_se);
+		int exceeded;
 
 		if (sched_rt_runtime(rt_rq) != RUNTIME_INF) {
 			raw_spin_lock(&rt_rq->rt_runtime_lock);
 			rt_rq->rt_time += delta_exec;
-			if (sched_rt_runtime_exceeded(rt_rq))
+			exceeded = sched_rt_runtime_exceeded(rt_rq);
+			if (exceeded)
 				resched_curr(rq);
 			raw_spin_unlock(&rt_rq->rt_runtime_lock);
+			if (exceeded)
+				do_start_rt_bandwidth(sched_rt_bandwidth(rt_rq));
 		}
 	}
 }
@@ -2727,8 +2736,12 @@ static int sched_rt_global_validate(void)
 
 static void sched_rt_do_global(void)
 {
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&def_rt_bandwidth.rt_runtime_lock, flags);
 	def_rt_bandwidth.rt_runtime = global_rt_runtime();
 	def_rt_bandwidth.rt_period = ns_to_ktime(global_rt_period());
+	raw_spin_unlock_irqrestore(&def_rt_bandwidth.rt_runtime_lock, flags);
 }
 
 int sched_rt_handler(struct ctl_table *table, int write, void *buffer,
-- 
GitLab


From 027165c491e49109c75bbb7bc877a2f83583754d Mon Sep 17 00:00:00 2001
From: Jackie Liu <liuyun01@kylinos.cn>
Date: Wed, 10 Nov 2021 15:09:49 +0800
Subject: [PATCH 3015/4878] drm/msm/dp: displayPort driver need algorithm
 rational

[ Upstream commit 53d22794711ad630f40d59dd726bd260d77d585f ]

Let's select RATIONAL with dp driver. avoid like:

[...]
x86_64-linux-gnu-ld: drivers/gpu/drm/msm/dp/dp_catalog.o: in function `dp_catalog_ctrl_config_msa':
dp_catalog.c:(.text+0x57e): undefined reference to `rational_best_approximation'

Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
Reported-by: kernelbot <kernel-bot@kylinos.cn>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Link: https://lore.kernel.org/r/20211110070950.3355597-2-liu.yun@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index dabb4a1ccdcf7..1aad34b5ffd7f 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -60,6 +60,7 @@ config DRM_MSM_HDMI_HDCP
 config DRM_MSM_DP
 	bool "Enable DisplayPort support in MSM DRM driver"
 	depends on DRM_MSM
+	select RATIONAL
 	default y
 	help
 	  Compile in support for DP driver in MSM DRM driver. DP external
-- 
GitLab


From 0836f9404017ef06bdb725818045b960c8f40ca0 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <frederic@kernel.org>
Date: Tue, 30 Nov 2021 17:21:08 +0100
Subject: [PATCH 3016/4878] rcu/exp: Mark current CPU as exp-QS in IPI loop
 second pass

[ Upstream commit 81f6d49cce2d2fe507e3fddcc4a6db021d9c2e7b ]

Expedited RCU grace periods invoke sync_rcu_exp_select_node_cpus(), which
takes two passes over the leaf rcu_node structure's CPUs.  The first
pass gathers up the current CPU and CPUs that are in dynticks idle mode.
The workqueue will report a quiescent state on their behalf later.
The second pass sends IPIs to the rest of the CPUs, but excludes the
current CPU, incorrectly assuming it has been included in the first
pass's list of CPUs.

Unfortunately the current CPU may have changed between the first and
second pass, due to the fact that the various rcu_node structures'
->lock fields have been dropped, thus momentarily enabling preemption.
This means that if the second pass's CPU was not on the first pass's
list, it will be ignored completely.  There will be no IPI sent to
it, and there will be no reporting of quiescent states on its behalf.
Unfortunately, the expedited grace period will nevertheless be waiting
for that CPU to report a quiescent state, but with that CPU having no
reason to believe that such a report is needed.

The result will be an expedited grace period stall.

Fix this by no longer excluding the current CPU from consideration during
the second pass.

Fixes: b9ad4d6ed18e ("rcu: Avoid self-IPI in sync_rcu_exp_select_node_cpus()")
Reviewed-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Joel Fernandes <joel@joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/rcu/tree_exp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index 0ffe185c1f46a..0dc16345e668c 100644
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -387,6 +387,7 @@ retry_ipi:
 			continue;
 		}
 		if (get_cpu() == cpu) {
+			mask_ofl_test |= mask;
 			put_cpu();
 			continue;
 		}
-- 
GitLab


From b87034d7a2a85267d13d1306841feacca0e4d8b0 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Mon, 29 Nov 2021 16:47:34 -0800
Subject: [PATCH 3017/4878] mwifiex: Fix possible ABBA deadlock

[ Upstream commit 1b8bb8919ef81bfc8873d223b9361f1685f2106d ]

Quoting Jia-Ju Bai <baijiaju1990@gmail.com>:

  mwifiex_dequeue_tx_packet()
     spin_lock_bh(&priv->wmm.ra_list_spinlock); --> Line 1432 (Lock A)
     mwifiex_send_addba()
       spin_lock_bh(&priv->sta_list_spinlock); --> Line 608 (Lock B)

  mwifiex_process_sta_tx_pause()
     spin_lock_bh(&priv->sta_list_spinlock); --> Line 398 (Lock B)
     mwifiex_update_ralist_tx_pause()
       spin_lock_bh(&priv->wmm.ra_list_spinlock); --> Line 941 (Lock A)

Similar report for mwifiex_process_uap_tx_pause().

While the locking expectations in this driver are a bit unclear, the
Fixed commit only intended to protect the sta_ptr, so we can drop the
lock as soon as we're done with it.

IIUC, this deadlock cannot actually happen, because command event
processing (which calls mwifiex_process_sta_tx_pause()) is
sequentialized with TX packet processing (e.g.,
mwifiex_dequeue_tx_packet()) via the main loop (mwifiex_main_process()).
But it's good not to leave this potential issue lurking.

Fixes: f0f7c2275fb9 ("mwifiex: minor cleanups w/ sta_list_spinlock in cfg80211.c")
Cc: Douglas Anderson <dianders@chromium.org>
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Link: https://lore.kernel.org/linux-wireless/0e495b14-efbb-e0da-37bd-af6bd677ee2c@gmail.com/
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/YaV0pllJ5p/EuUat@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/sta_event.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c
index bc79ca4cb803c..753458628f86a 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_event.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c
@@ -364,10 +364,12 @@ static void mwifiex_process_uap_tx_pause(struct mwifiex_private *priv,
 		sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
 		if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
 			sta_ptr->tx_pause = tp->tx_pause;
+			spin_unlock_bh(&priv->sta_list_spinlock);
 			mwifiex_update_ralist_tx_pause(priv, tp->peermac,
 						       tp->tx_pause);
+		} else {
+			spin_unlock_bh(&priv->sta_list_spinlock);
 		}
-		spin_unlock_bh(&priv->sta_list_spinlock);
 	}
 }
 
@@ -399,11 +401,13 @@ static void mwifiex_process_sta_tx_pause(struct mwifiex_private *priv,
 			sta_ptr = mwifiex_get_sta_entry(priv, tp->peermac);
 			if (sta_ptr && sta_ptr->tx_pause != tp->tx_pause) {
 				sta_ptr->tx_pause = tp->tx_pause;
+				spin_unlock_bh(&priv->sta_list_spinlock);
 				mwifiex_update_ralist_tx_pause(priv,
 							       tp->peermac,
 							       tp->tx_pause);
+			} else {
+				spin_unlock_bh(&priv->sta_list_spinlock);
 			}
-			spin_unlock_bh(&priv->sta_list_spinlock);
 		}
 	}
 }
-- 
GitLab


From 3e801ea43c4b81a32e2a72cd102ad60783b5f07e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 8 Dec 2021 12:20:19 -0800
Subject: [PATCH 3018/4878] xfrm: fix a small bug in xfrm_sa_len()

[ Upstream commit 7770a39d7c63faec6c4f33666d49a8cb664d0482 ]

copy_user_offload() will actually push a struct struct xfrm_user_offload,
which is different than (struct xfrm_state *)->xso
(struct xfrm_state_offload)

Fixes: d77e38e612a01 ("xfrm: Add an IPsec hardware offloading API")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 6f97665b632ed..97f7ebf5324e7 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2898,7 +2898,7 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
 	if (x->props.extra_flags)
 		l += nla_total_size(sizeof(x->props.extra_flags));
 	if (x->xso.dev)
-		 l += nla_total_size(sizeof(x->xso));
+		 l += nla_total_size(sizeof(struct xfrm_user_offload));
 	if (x->props.smark.v | x->props.smark.m) {
 		l += nla_total_size(sizeof(x->props.smark.v));
 		l += nla_total_size(sizeof(x->props.smark.m));
-- 
GitLab


From d21b47c607379c50924f961ea45cdb7702bf8007 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Wed, 8 Dec 2021 20:34:56 -0800
Subject: [PATCH 3019/4878] x86/uaccess: Move variable into switch case
 statement

[ Upstream commit 61646ca83d3889696f2772edaff122dd96a2935e ]

When building with automatic stack variable initialization, GCC 12
complains about variables defined outside of switch case statements.
Move the variable into the case that uses it, which silences the warning:

./arch/x86/include/asm/uaccess.h:317:23: warning: statement will never be executed [-Wswitch-unreachable]
  317 |         unsigned char x_u8__; \
      |                       ^~~~~~

Fixes: 865c50e1d279 ("x86/uaccess: utilize CONFIG_CC_HAS_ASM_GOTO_OUTPUT")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211209043456.1377875-1-keescook@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/uaccess.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 5c95d242f38d7..bb1430283c726 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -314,11 +314,12 @@ do {									\
 do {									\
 	__chk_user_ptr(ptr);						\
 	switch (size) {							\
-	unsigned char x_u8__;						\
-	case 1:								\
+	case 1:	{							\
+		unsigned char x_u8__;					\
 		__get_user_asm(x_u8__, ptr, "b", "=q", label);		\
 		(x) = x_u8__;						\
 		break;							\
+	}								\
 	case 2:								\
 		__get_user_asm(x, ptr, "w", "=r", label);		\
 		break;							\
-- 
GitLab


From f568fd97d7515f1f3c3efeb604927a3526bff7ba Mon Sep 17 00:00:00 2001
From: Anders Roxell <anders.roxell@linaro.org>
Date: Wed, 3 Nov 2021 21:13:50 +0100
Subject: [PATCH 3020/4878] selftests: clone3: clone3: add case
 CLONE3_ARGS_NO_TEST

[ Upstream commit a531b0c23c0fc68ad758cc31a74cf612a4dafeb0 ]

Building selftests/clone3 with clang warns about enumeration not handled
in switch case:

clone3.c:54:10: warning: enumeration value 'CLONE3_ARGS_NO_TEST' not handled in switch [-Wswitch]
        switch (test_mode) {
                ^

Add the missing switch case with a comment.

Fixes: 17a810699c18 ("selftests: add tests for clone3()")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/clone3/clone3.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
index 42be3b9258301..076cf4325f783 100644
--- a/tools/testing/selftests/clone3/clone3.c
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -52,6 +52,12 @@ static int call_clone3(uint64_t flags, size_t size, enum test_mode test_mode)
 		size = sizeof(struct __clone_args);
 
 	switch (test_mode) {
+	case CLONE3_ARGS_NO_TEST:
+		/*
+		 * Uses default 'flags' and 'SIGCHLD'
+		 * assignment.
+		 */
+		break;
 	case CLONE3_ARGS_ALL_0:
 		args.flags = 0;
 		args.exit_signal = 0;
-- 
GitLab


From 93033bbbdc25c2168261846a84b5ba2b2475c995 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Wed, 24 Nov 2021 14:39:16 -0800
Subject: [PATCH 3021/4878] selftests: harness: avoid false negatives if test
 has no ASSERTs

[ Upstream commit 3abedf4646fdc0036fcb8ebbc3b600667167fafe ]

Test can fail either immediately when ASSERT() failed or at the
end if one or more EXPECT() was not met. The exact return code
is decided based on the number of successful ASSERT()s.

If test has no ASSERT()s, however, the return code will be 0,
as if the test did not fail. Start counting ASSERT()s from 1.

Fixes: 369130b63178 ("selftests: Enhance kselftest_harness.h to print which assert failed")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kselftest_harness.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index edce85420d193..5ecb9718e1616 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -965,7 +965,7 @@ void __run_test(struct __fixture_metadata *f,
 	t->passed = 1;
 	t->skip = 0;
 	t->trigger = 0;
-	t->step = 0;
+	t->step = 1;
 	t->no_print = 0;
 	memset(t->results->reason, 0, sizeof(t->results->reason));
 
-- 
GitLab


From c40b1bc851e0816f45520f31b44e8461de13fc5c Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 4 Jan 2021 17:15:45 +1100
Subject: [PATCH 3022/4878] crypto: stm32 - Fix last sparse warning in
 stm32_cryp_check_ctr_counter

[ Upstream commit 81064c96d88180ad6995d52419e94a78968308a2 ]

This patch changes the cast in stm32_cryp_check_ctr_counter from
u32 to __be32 to match the prototype of stm32_cryp_hw_write_iv
correctly.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 7999b26a16ed0..7389a0536ff02 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -1229,7 +1229,7 @@ static void stm32_cryp_check_ctr_counter(struct stm32_cryp *cryp)
 		cr = stm32_cryp_read(cryp, CRYP_CR);
 		stm32_cryp_write(cryp, CRYP_CR, cr & ~CR_CRYPEN);
 
-		stm32_cryp_hw_write_iv(cryp, (u32 *)cryp->last_ctr);
+		stm32_cryp_hw_write_iv(cryp, (__be32 *)cryp->last_ctr);
 
 		stm32_cryp_write(cryp, CRYP_CR, cr);
 	}
-- 
GitLab


From e9e0dd5da8ca4623e30ab1abd67882ddcda05050 Mon Sep 17 00:00:00 2001
From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Date: Tue, 30 Nov 2021 08:54:55 +0100
Subject: [PATCH 3023/4878] crypto: stm32/cryp - fix CTR counter carry

[ Upstream commit 41c76690b0990efacd15d35cfb4e77318cd80ebb ]

STM32 CRYP hardware doesn't manage CTR counter bigger than max U32, as
a workaround, at each block the current IV is saved, if the saved IV
lower u32 is 0xFFFFFFFF, the full IV is manually incremented, and set
in hardware.
Fixes: bbb2832620ac ("crypto: stm32 - Fix sparse warnings")

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 7389a0536ff02..d13b262b36252 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -163,7 +163,7 @@ struct stm32_cryp {
 	struct scatter_walk     in_walk;
 	struct scatter_walk     out_walk;
 
-	u32                     last_ctr[4];
+	__be32                  last_ctr[4];
 	u32                     gcm_ctr;
 };
 
@@ -1217,27 +1217,26 @@ static void stm32_cryp_check_ctr_counter(struct stm32_cryp *cryp)
 {
 	u32 cr;
 
-	if (unlikely(cryp->last_ctr[3] == 0xFFFFFFFF)) {
-		cryp->last_ctr[3] = 0;
-		cryp->last_ctr[2]++;
-		if (!cryp->last_ctr[2]) {
-			cryp->last_ctr[1]++;
-			if (!cryp->last_ctr[1])
-				cryp->last_ctr[0]++;
-		}
+	if (unlikely(cryp->last_ctr[3] == cpu_to_be32(0xFFFFFFFF))) {
+		/*
+		 * In this case, we need to increment manually the ctr counter,
+		 * as HW doesn't handle the U32 carry.
+		 */
+		crypto_inc((u8 *)cryp->last_ctr, sizeof(cryp->last_ctr));
 
 		cr = stm32_cryp_read(cryp, CRYP_CR);
 		stm32_cryp_write(cryp, CRYP_CR, cr & ~CR_CRYPEN);
 
-		stm32_cryp_hw_write_iv(cryp, (__be32 *)cryp->last_ctr);
+		stm32_cryp_hw_write_iv(cryp, cryp->last_ctr);
 
 		stm32_cryp_write(cryp, CRYP_CR, cr);
 	}
 
-	cryp->last_ctr[0] = stm32_cryp_read(cryp, CRYP_IV0LR);
-	cryp->last_ctr[1] = stm32_cryp_read(cryp, CRYP_IV0RR);
-	cryp->last_ctr[2] = stm32_cryp_read(cryp, CRYP_IV1LR);
-	cryp->last_ctr[3] = stm32_cryp_read(cryp, CRYP_IV1RR);
+	/* The IV registers are BE  */
+	cryp->last_ctr[0] = cpu_to_be32(stm32_cryp_read(cryp, CRYP_IV0LR));
+	cryp->last_ctr[1] = cpu_to_be32(stm32_cryp_read(cryp, CRYP_IV0RR));
+	cryp->last_ctr[2] = cpu_to_be32(stm32_cryp_read(cryp, CRYP_IV1LR));
+	cryp->last_ctr[3] = cpu_to_be32(stm32_cryp_read(cryp, CRYP_IV1RR));
 }
 
 static bool stm32_cryp_irq_read_data(struct stm32_cryp *cryp)
-- 
GitLab


From 5deb24e50372357cf975e85067f09a57ad33dc99 Mon Sep 17 00:00:00 2001
From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Date: Tue, 30 Nov 2021 08:54:56 +0100
Subject: [PATCH 3024/4878] crypto: stm32/cryp - fix xts and race condition in
 crypto_engine requests

[ Upstream commit d703c7a994ee34b7fa89baf21631fca0aa9f17fc ]

Don't erase key:
If key is erased before the crypto_finalize_.*_request() call, some
pending process will run with a key={ 0 }.
Moreover if the key is reset at end of request, it breaks xts chaining
mode, as for last xts block (in case input len is not a multiple of
block) a new AES request is started without calling again set_key().

Fixes: 9e054ec21ef8 ("crypto: stm32 - Support for STM32 CRYP crypto module")

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index d13b262b36252..e2bcc4f98b0ae 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -674,8 +674,6 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
 	else
 		crypto_finalize_skcipher_request(cryp->engine, cryp->req,
 						   err);
-
-	memset(cryp->ctx->key, 0, cryp->ctx->keylen);
 }
 
 static int stm32_cryp_cpu_start(struct stm32_cryp *cryp)
-- 
GitLab


From 533af1621d1c8f89b61593f88b7e0b30592e3013 Mon Sep 17 00:00:00 2001
From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Date: Tue, 30 Nov 2021 08:54:57 +0100
Subject: [PATCH 3025/4878] crypto: stm32/cryp - check early input data

[ Upstream commit 39e6e699c7fb92bdb2617b596ca4a4ea35c5d2a7 ]

Some auto tests failed because driver wasn't returning the expected
error with some input size/iv value/tag size.
Now:
 Return 0 early for empty buffer. (We don't need to start the engine for
 an empty input buffer).
 Accept any valid authsize for gcm(aes).
 Return -EINVAL if iv for ccm(aes) is invalid.
 Return -EINVAL if buffer size is a not a multiple of algorithm block size.

Fixes: 9e054ec21ef8 ("crypto: stm32 - Support for STM32 CRYP crypto module")

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 114 +++++++++++++++++++++++++++++-
 1 file changed, 113 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index e2bcc4f98b0ae..fd7fb73a4d450 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -799,7 +799,20 @@ static int stm32_cryp_aes_aead_setkey(struct crypto_aead *tfm, const u8 *key,
 static int stm32_cryp_aes_gcm_setauthsize(struct crypto_aead *tfm,
 					  unsigned int authsize)
 {
-	return authsize == AES_BLOCK_SIZE ? 0 : -EINVAL;
+	switch (authsize) {
+	case 4:
+	case 8:
+	case 12:
+	case 13:
+	case 14:
+	case 15:
+	case 16:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
 }
 
 static int stm32_cryp_aes_ccm_setauthsize(struct crypto_aead *tfm,
@@ -823,31 +836,61 @@ static int stm32_cryp_aes_ccm_setauthsize(struct crypto_aead *tfm,
 
 static int stm32_cryp_aes_ecb_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % AES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_AES | FLG_ECB | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_aes_ecb_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % AES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_AES | FLG_ECB);
 }
 
 static int stm32_cryp_aes_cbc_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % AES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_AES | FLG_CBC | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_aes_cbc_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % AES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_AES | FLG_CBC);
 }
 
 static int stm32_cryp_aes_ctr_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_AES | FLG_CTR | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_aes_ctr_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_AES | FLG_CTR);
 }
 
@@ -861,53 +904,122 @@ static int stm32_cryp_aes_gcm_decrypt(struct aead_request *req)
 	return stm32_cryp_aead_crypt(req, FLG_AES | FLG_GCM);
 }
 
+static inline int crypto_ccm_check_iv(const u8 *iv)
+{
+	/* 2 <= L <= 8, so 1 <= L' <= 7. */
+	if (iv[0] < 1 || iv[0] > 7)
+		return -EINVAL;
+
+	return 0;
+}
+
 static int stm32_cryp_aes_ccm_encrypt(struct aead_request *req)
 {
+	int err;
+
+	err = crypto_ccm_check_iv(req->iv);
+	if (err)
+		return err;
+
 	return stm32_cryp_aead_crypt(req, FLG_AES | FLG_CCM | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_aes_ccm_decrypt(struct aead_request *req)
 {
+	int err;
+
+	err = crypto_ccm_check_iv(req->iv);
+	if (err)
+		return err;
+
 	return stm32_cryp_aead_crypt(req, FLG_AES | FLG_CCM);
 }
 
 static int stm32_cryp_des_ecb_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_DES | FLG_ECB | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_des_ecb_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_DES | FLG_ECB);
 }
 
 static int stm32_cryp_des_cbc_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_DES | FLG_CBC | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_des_cbc_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_DES | FLG_CBC);
 }
 
 static int stm32_cryp_tdes_ecb_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_TDES | FLG_ECB | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_tdes_ecb_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_TDES | FLG_ECB);
 }
 
 static int stm32_cryp_tdes_cbc_encrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_TDES | FLG_CBC | FLG_ENCRYPT);
 }
 
 static int stm32_cryp_tdes_cbc_decrypt(struct skcipher_request *req)
 {
+	if (req->cryptlen % DES_BLOCK_SIZE)
+		return -EINVAL;
+
+	if (req->cryptlen == 0)
+		return 0;
+
 	return stm32_cryp_crypt(req, FLG_TDES | FLG_CBC);
 }
 
-- 
GitLab


From 2bd40e3a3aa2e58d9ec0e4fec3a511c7e053649d Mon Sep 17 00:00:00 2001
From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Date: Tue, 30 Nov 2021 08:54:58 +0100
Subject: [PATCH 3026/4878] crypto: stm32/cryp - fix double pm exit

[ Upstream commit 6c12e742785bf9333faf60bfb96575bdd763448e ]

Delete extraneous lines in probe error handling code: pm was
disabled twice.

Fixes: 65f9aa36ee47 ("crypto: stm32/cryp - Add power management support")

Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index fd7fb73a4d450..061db567908ae 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -2134,8 +2134,6 @@ err_engine1:
 	list_del(&cryp->list);
 	spin_unlock(&cryp_list.lock);
 
-	pm_runtime_disable(dev);
-	pm_runtime_put_noidle(dev);
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
 
-- 
GitLab


From 1f6151b0774be73a747c8ed95d482d20d2d13daf Mon Sep 17 00:00:00 2001
From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Date: Tue, 30 Nov 2021 08:54:59 +0100
Subject: [PATCH 3027/4878] crypto: stm32/cryp - fix lrw chaining mode

[ Upstream commit fa97dc2d48b476ea98199d808d3248d285987e99 ]

This fixes the lrw autotest if lrw uses the CRYP as the AES block cipher
provider (as ecb(aes)). At end of request, CRYP should not update the IV
in case of ECB chaining mode. Indeed the ECB chaining mode never uses
the IV, but the software LRW chaining mode uses the IV field as
a counter and due to the (unexpected) update done by CRYP while the AES
block process, the counter get a wrong value when the IV overflow.

Fixes: 5f49f18d27cd ("crypto: stm32/cryp - update to return iv_out")

Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 061db567908ae..9943836a5c25c 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -644,7 +644,7 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
 		/* Phase 4 : output tag */
 		err = stm32_cryp_read_auth_tag(cryp);
 
-	if (!err && (!(is_gcm(cryp) || is_ccm(cryp))))
+	if (!err && (!(is_gcm(cryp) || is_ccm(cryp) || is_ecb(cryp))))
 		stm32_cryp_get_iv(cryp);
 
 	if (cryp->sgs_copied) {
-- 
GitLab


From 1f5b81874f2722bf2bb23ca0268f9c70728fb759 Mon Sep 17 00:00:00 2001
From: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Date: Tue, 30 Nov 2021 08:55:00 +0100
Subject: [PATCH 3028/4878] crypto: stm32/cryp - fix bugs and crash in tests

[ Upstream commit 4b898d5cfa4d9a0ad5bc82cb5eafdc092394c6a9 ]

Extra crypto manager auto test were crashing or failling due
to 2 reasons:
- block in a dead loop (dues to issues in cipher end process management)
- crash due to read/write unmapped memory (this crash was also reported
when using openssl afalg engine)

Rework interrupt management, interrupts are masked as soon as they are
no more used: if input buffer is fully consumed, "Input FIFO not full"
interrupt is masked and if output buffer is full, "Output FIFO not
empty" interrupt is masked.
And crypto request finish when input *and* outpout buffer are fully
read/write.

About the crash due to unmapped memory, using scatterwalk_copychunks()
that will map and copy each block fix the issue.
Using this api and copying full block will also fix unaligned data
access, avoid early copy of in/out buffer, and make useless the extra
alignment constraint.

Fixes: 9e054ec21ef8 ("crypto: stm32 - Support for STM32 CRYP crypto module")

Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 790 +++++++++---------------------
 1 file changed, 243 insertions(+), 547 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 9943836a5c25c..cd57c5bae3ce9 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -37,7 +37,6 @@
 /* Mode mask = bits [15..0] */
 #define FLG_MODE_MASK           GENMASK(15, 0)
 /* Bit [31..16] status  */
-#define FLG_CCM_PADDED_WA       BIT(16)
 
 /* Registers */
 #define CRYP_CR                 0x00000000
@@ -105,8 +104,6 @@
 /* Misc */
 #define AES_BLOCK_32            (AES_BLOCK_SIZE / sizeof(u32))
 #define GCM_CTR_INIT            2
-#define _walked_in              (cryp->in_walk.offset - cryp->in_sg->offset)
-#define _walked_out             (cryp->out_walk.offset - cryp->out_sg->offset)
 #define CRYP_AUTOSUSPEND_DELAY	50
 
 struct stm32_cryp_caps {
@@ -144,21 +141,11 @@ struct stm32_cryp {
 	size_t                  authsize;
 	size_t                  hw_blocksize;
 
-	size_t                  total_in;
-	size_t                  total_in_save;
-	size_t                  total_out;
-	size_t                  total_out_save;
+	size_t                  payload_in;
+	size_t                  header_in;
+	size_t                  payload_out;
 
-	struct scatterlist      *in_sg;
 	struct scatterlist      *out_sg;
-	struct scatterlist      *out_sg_save;
-
-	struct scatterlist      in_sgl;
-	struct scatterlist      out_sgl;
-	bool                    sgs_copied;
-
-	int                     in_sg_len;
-	int                     out_sg_len;
 
 	struct scatter_walk     in_walk;
 	struct scatter_walk     out_walk;
@@ -262,6 +249,7 @@ static inline int stm32_cryp_wait_output(struct stm32_cryp *cryp)
 }
 
 static int stm32_cryp_read_auth_tag(struct stm32_cryp *cryp);
+static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err);
 
 static struct stm32_cryp *stm32_cryp_find_dev(struct stm32_cryp_ctx *ctx)
 {
@@ -283,103 +271,6 @@ static struct stm32_cryp *stm32_cryp_find_dev(struct stm32_cryp_ctx *ctx)
 	return cryp;
 }
 
-static int stm32_cryp_check_aligned(struct scatterlist *sg, size_t total,
-				    size_t align)
-{
-	int len = 0;
-
-	if (!total)
-		return 0;
-
-	if (!IS_ALIGNED(total, align))
-		return -EINVAL;
-
-	while (sg) {
-		if (!IS_ALIGNED(sg->offset, sizeof(u32)))
-			return -EINVAL;
-
-		if (!IS_ALIGNED(sg->length, align))
-			return -EINVAL;
-
-		len += sg->length;
-		sg = sg_next(sg);
-	}
-
-	if (len != total)
-		return -EINVAL;
-
-	return 0;
-}
-
-static int stm32_cryp_check_io_aligned(struct stm32_cryp *cryp)
-{
-	int ret;
-
-	ret = stm32_cryp_check_aligned(cryp->in_sg, cryp->total_in,
-				       cryp->hw_blocksize);
-	if (ret)
-		return ret;
-
-	ret = stm32_cryp_check_aligned(cryp->out_sg, cryp->total_out,
-				       cryp->hw_blocksize);
-
-	return ret;
-}
-
-static void sg_copy_buf(void *buf, struct scatterlist *sg,
-			unsigned int start, unsigned int nbytes, int out)
-{
-	struct scatter_walk walk;
-
-	if (!nbytes)
-		return;
-
-	scatterwalk_start(&walk, sg);
-	scatterwalk_advance(&walk, start);
-	scatterwalk_copychunks(buf, &walk, nbytes, out);
-	scatterwalk_done(&walk, out, 0);
-}
-
-static int stm32_cryp_copy_sgs(struct stm32_cryp *cryp)
-{
-	void *buf_in, *buf_out;
-	int pages, total_in, total_out;
-
-	if (!stm32_cryp_check_io_aligned(cryp)) {
-		cryp->sgs_copied = 0;
-		return 0;
-	}
-
-	total_in = ALIGN(cryp->total_in, cryp->hw_blocksize);
-	pages = total_in ? get_order(total_in) : 1;
-	buf_in = (void *)__get_free_pages(GFP_ATOMIC, pages);
-
-	total_out = ALIGN(cryp->total_out, cryp->hw_blocksize);
-	pages = total_out ? get_order(total_out) : 1;
-	buf_out = (void *)__get_free_pages(GFP_ATOMIC, pages);
-
-	if (!buf_in || !buf_out) {
-		dev_err(cryp->dev, "Can't allocate pages when unaligned\n");
-		cryp->sgs_copied = 0;
-		return -EFAULT;
-	}
-
-	sg_copy_buf(buf_in, cryp->in_sg, 0, cryp->total_in, 0);
-
-	sg_init_one(&cryp->in_sgl, buf_in, total_in);
-	cryp->in_sg = &cryp->in_sgl;
-	cryp->in_sg_len = 1;
-
-	sg_init_one(&cryp->out_sgl, buf_out, total_out);
-	cryp->out_sg_save = cryp->out_sg;
-	cryp->out_sg = &cryp->out_sgl;
-	cryp->out_sg_len = 1;
-
-	cryp->sgs_copied = 1;
-
-	return 0;
-}
-
 static void stm32_cryp_hw_write_iv(struct stm32_cryp *cryp, __be32 *iv)
 {
 	if (!iv)
@@ -481,16 +372,99 @@ static int stm32_cryp_gcm_init(struct stm32_cryp *cryp, u32 cfg)
 
 	/* Wait for end of processing */
 	ret = stm32_cryp_wait_enable(cryp);
-	if (ret)
+	if (ret) {
 		dev_err(cryp->dev, "Timeout (gcm init)\n");
+		return ret;
+	}
 
-	return ret;
+	/* Prepare next phase */
+	if (cryp->areq->assoclen) {
+		cfg |= CR_PH_HEADER;
+		stm32_cryp_write(cryp, CRYP_CR, cfg);
+	} else if (stm32_cryp_get_input_text_len(cryp)) {
+		cfg |= CR_PH_PAYLOAD;
+		stm32_cryp_write(cryp, CRYP_CR, cfg);
+	}
+
+	return 0;
+}
+
+static void stm32_crypt_gcmccm_end_header(struct stm32_cryp *cryp)
+{
+	u32 cfg;
+	int err;
+
+	/* Check if whole header written */
+	if (!cryp->header_in) {
+		/* Wait for completion */
+		err = stm32_cryp_wait_busy(cryp);
+		if (err) {
+			dev_err(cryp->dev, "Timeout (gcm/ccm header)\n");
+			stm32_cryp_write(cryp, CRYP_IMSCR, 0);
+			stm32_cryp_finish_req(cryp, err);
+			return;
+		}
+
+		if (stm32_cryp_get_input_text_len(cryp)) {
+			/* Phase 3 : payload */
+			cfg = stm32_cryp_read(cryp, CRYP_CR);
+			cfg &= ~CR_CRYPEN;
+			stm32_cryp_write(cryp, CRYP_CR, cfg);
+
+			cfg &= ~CR_PH_MASK;
+			cfg |= CR_PH_PAYLOAD | CR_CRYPEN;
+			stm32_cryp_write(cryp, CRYP_CR, cfg);
+		} else {
+			/*
+			 * Phase 4 : tag.
+			 * Nothing to read, nothing to write, caller have to
+			 * end request
+			 */
+		}
+	}
+}
+
+static void stm32_cryp_write_ccm_first_header(struct stm32_cryp *cryp)
+{
+	unsigned int i;
+	size_t written;
+	size_t len;
+	u32 alen = cryp->areq->assoclen;
+	u32 block[AES_BLOCK_32] = {0};
+	u8 *b8 = (u8 *)block;
+
+	if (alen <= 65280) {
+		/* Write first u32 of B1 */
+		b8[0] = (alen >> 8) & 0xFF;
+		b8[1] = alen & 0xFF;
+		len = 2;
+	} else {
+		/* Build the two first u32 of B1 */
+		b8[0] = 0xFF;
+		b8[1] = 0xFE;
+		b8[2] = (alen & 0xFF000000) >> 24;
+		b8[3] = (alen & 0x00FF0000) >> 16;
+		b8[4] = (alen & 0x0000FF00) >> 8;
+		b8[5] = alen & 0x000000FF;
+		len = 6;
+	}
+
+	written = min_t(size_t, AES_BLOCK_SIZE - len, alen);
+
+	scatterwalk_copychunks((char *)block + len, &cryp->in_walk, written, 0);
+	for (i = 0; i < AES_BLOCK_32; i++)
+		stm32_cryp_write(cryp, CRYP_DIN, block[i]);
+
+	cryp->header_in -= written;
+
+	stm32_crypt_gcmccm_end_header(cryp);
 }
 
 static int stm32_cryp_ccm_init(struct stm32_cryp *cryp, u32 cfg)
 {
 	int ret;
-	u8 iv[AES_BLOCK_SIZE], b0[AES_BLOCK_SIZE];
+	u32 iv_32[AES_BLOCK_32], b0_32[AES_BLOCK_32];
+	u8 *iv = (u8 *)iv_32, *b0 = (u8 *)b0_32;
 	__be32 *bd;
 	u32 *d;
 	unsigned int i, textlen;
@@ -531,17 +505,30 @@ static int stm32_cryp_ccm_init(struct stm32_cryp *cryp, u32 cfg)
 
 	/* Wait for end of processing */
 	ret = stm32_cryp_wait_enable(cryp);
-	if (ret)
+	if (ret) {
 		dev_err(cryp->dev, "Timeout (ccm init)\n");
+		return ret;
+	}
 
-	return ret;
+	/* Prepare next phase */
+	if (cryp->areq->assoclen) {
+		cfg |= CR_PH_HEADER | CR_CRYPEN;
+		stm32_cryp_write(cryp, CRYP_CR, cfg);
+
+		/* Write first (special) block (may move to next phase [payload]) */
+		stm32_cryp_write_ccm_first_header(cryp);
+	} else if (stm32_cryp_get_input_text_len(cryp)) {
+		cfg |= CR_PH_PAYLOAD;
+		stm32_cryp_write(cryp, CRYP_CR, cfg);
+	}
+
+	return 0;
 }
 
 static int stm32_cryp_hw_init(struct stm32_cryp *cryp)
 {
 	int ret;
 	u32 cfg, hw_mode;
-
 	pm_runtime_resume_and_get(cryp->dev);
 
 	/* Disable interrupt */
@@ -605,16 +592,6 @@ static int stm32_cryp_hw_init(struct stm32_cryp *cryp)
 		if (ret)
 			return ret;
 
-		/* Phase 2 : header (authenticated data) */
-		if (cryp->areq->assoclen) {
-			cfg |= CR_PH_HEADER;
-		} else if (stm32_cryp_get_input_text_len(cryp)) {
-			cfg |= CR_PH_PAYLOAD;
-			stm32_cryp_write(cryp, CRYP_CR, cfg);
-		} else {
-			cfg |= CR_PH_INIT;
-		}
-
 		break;
 
 	case CR_DES_CBC:
@@ -633,8 +610,6 @@ static int stm32_cryp_hw_init(struct stm32_cryp *cryp)
 
 	stm32_cryp_write(cryp, CRYP_CR, cfg);
 
-	cryp->flags &= ~FLG_CCM_PADDED_WA;
-
 	return 0;
 }
 
@@ -647,25 +622,6 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
 	if (!err && (!(is_gcm(cryp) || is_ccm(cryp) || is_ecb(cryp))))
 		stm32_cryp_get_iv(cryp);
 
-	if (cryp->sgs_copied) {
-		void *buf_in, *buf_out;
-		int pages, len;
-
-		buf_in = sg_virt(&cryp->in_sgl);
-		buf_out = sg_virt(&cryp->out_sgl);
-
-		sg_copy_buf(buf_out, cryp->out_sg_save, 0,
-			    cryp->total_out_save, 1);
-
-		len = ALIGN(cryp->total_in_save, cryp->hw_blocksize);
-		pages = len ? get_order(len) : 1;
-		free_pages((unsigned long)buf_in, pages);
-
-		len = ALIGN(cryp->total_out_save, cryp->hw_blocksize);
-		pages = len ? get_order(len) : 1;
-		free_pages((unsigned long)buf_out, pages);
-	}
-
 	pm_runtime_mark_last_busy(cryp->dev);
 	pm_runtime_put_autosuspend(cryp->dev);
 
@@ -1029,6 +985,7 @@ static int stm32_cryp_prepare_req(struct skcipher_request *req,
 	struct stm32_cryp_ctx *ctx;
 	struct stm32_cryp *cryp;
 	struct stm32_cryp_reqctx *rctx;
+	struct scatterlist *in_sg;
 	int ret;
 
 	if (!req && !areq)
@@ -1054,76 +1011,55 @@ static int stm32_cryp_prepare_req(struct skcipher_request *req,
 	if (req) {
 		cryp->req = req;
 		cryp->areq = NULL;
-		cryp->total_in = req->cryptlen;
-		cryp->total_out = cryp->total_in;
+		cryp->header_in = 0;
+		cryp->payload_in = req->cryptlen;
+		cryp->payload_out = req->cryptlen;
+		cryp->authsize = 0;
 	} else {
 		/*
 		 * Length of input and output data:
 		 * Encryption case:
-		 *  INPUT  =   AssocData  ||   PlainText
+		 *  INPUT  = AssocData   ||     PlainText
 		 *          <- assoclen ->  <- cryptlen ->
-		 *          <------- total_in ----------->
 		 *
-		 *  OUTPUT =   AssocData  ||  CipherText  ||   AuthTag
-		 *          <- assoclen ->  <- cryptlen ->  <- authsize ->
-		 *          <---------------- total_out ----------------->
+		 *  OUTPUT = AssocData    ||   CipherText   ||      AuthTag
+		 *          <- assoclen ->  <-- cryptlen -->  <- authsize ->
 		 *
 		 * Decryption case:
-		 *  INPUT  =   AssocData  ||  CipherText  ||  AuthTag
-		 *          <- assoclen ->  <--------- cryptlen --------->
-		 *                                          <- authsize ->
-		 *          <---------------- total_in ------------------>
+		 *  INPUT  =  AssocData     ||    CipherTex   ||       AuthTag
+		 *          <- assoclen --->  <---------- cryptlen ---------->
 		 *
-		 *  OUTPUT =   AssocData  ||   PlainText
-		 *          <- assoclen ->  <- crypten - authsize ->
-		 *          <---------- total_out ----------------->
+		 *  OUTPUT = AssocData    ||               PlainText
+		 *          <- assoclen ->  <- cryptlen - authsize ->
 		 */
 		cryp->areq = areq;
 		cryp->req = NULL;
 		cryp->authsize = crypto_aead_authsize(crypto_aead_reqtfm(areq));
-		cryp->total_in = areq->assoclen + areq->cryptlen;
-		if (is_encrypt(cryp))
-			/* Append auth tag to output */
-			cryp->total_out = cryp->total_in + cryp->authsize;
-		else
-			/* No auth tag in output */
-			cryp->total_out = cryp->total_in - cryp->authsize;
+		if (is_encrypt(cryp)) {
+			cryp->payload_in = areq->cryptlen;
+			cryp->header_in = areq->assoclen;
+			cryp->payload_out = areq->cryptlen;
+		} else {
+			cryp->payload_in = areq->cryptlen - cryp->authsize;
+			cryp->header_in = areq->assoclen;
+			cryp->payload_out = cryp->payload_in;
+		}
 	}
 
-	cryp->total_in_save = cryp->total_in;
-	cryp->total_out_save = cryp->total_out;
+	in_sg = req ? req->src : areq->src;
+	scatterwalk_start(&cryp->in_walk, in_sg);
 
-	cryp->in_sg = req ? req->src : areq->src;
 	cryp->out_sg = req ? req->dst : areq->dst;
-	cryp->out_sg_save = cryp->out_sg;
-
-	cryp->in_sg_len = sg_nents_for_len(cryp->in_sg, cryp->total_in);
-	if (cryp->in_sg_len < 0) {
-		dev_err(cryp->dev, "Cannot get in_sg_len\n");
-		ret = cryp->in_sg_len;
-		return ret;
-	}
-
-	cryp->out_sg_len = sg_nents_for_len(cryp->out_sg, cryp->total_out);
-	if (cryp->out_sg_len < 0) {
-		dev_err(cryp->dev, "Cannot get out_sg_len\n");
-		ret = cryp->out_sg_len;
-		return ret;
-	}
-
-	ret = stm32_cryp_copy_sgs(cryp);
-	if (ret)
-		return ret;
-
-	scatterwalk_start(&cryp->in_walk, cryp->in_sg);
 	scatterwalk_start(&cryp->out_walk, cryp->out_sg);
 
 	if (is_gcm(cryp) || is_ccm(cryp)) {
 		/* In output, jump after assoc data */
-		scatterwalk_advance(&cryp->out_walk, cryp->areq->assoclen);
-		cryp->total_out -= cryp->areq->assoclen;
+		scatterwalk_copychunks(NULL, &cryp->out_walk, cryp->areq->assoclen, 2);
 	}
 
+	if (is_ctr(cryp))
+		memset(cryp->last_ctr, 0, sizeof(cryp->last_ctr));
+
 	ret = stm32_cryp_hw_init(cryp);
 	return ret;
 }
@@ -1171,8 +1107,7 @@ static int stm32_cryp_aead_one_req(struct crypto_engine *engine, void *areq)
 	if (!cryp)
 		return -ENODEV;
 
-	if (unlikely(!cryp->areq->assoclen &&
-		     !stm32_cryp_get_input_text_len(cryp))) {
+	if (unlikely(!cryp->payload_in && !cryp->header_in)) {
 		/* No input data to process: get tag and finish */
 		stm32_cryp_finish_req(cryp, 0);
 		return 0;
@@ -1181,43 +1116,10 @@ static int stm32_cryp_aead_one_req(struct crypto_engine *engine, void *areq)
 	return stm32_cryp_cpu_start(cryp);
 }
 
-static u32 *stm32_cryp_next_out(struct stm32_cryp *cryp, u32 *dst,
-				unsigned int n)
-{
-	scatterwalk_advance(&cryp->out_walk, n);
-
-	if (unlikely(cryp->out_sg->length == _walked_out)) {
-		cryp->out_sg = sg_next(cryp->out_sg);
-		if (cryp->out_sg) {
-			scatterwalk_start(&cryp->out_walk, cryp->out_sg);
-			return (sg_virt(cryp->out_sg) + _walked_out);
-		}
-	}
-
-	return (u32 *)((u8 *)dst + n);
-}
-
-static u32 *stm32_cryp_next_in(struct stm32_cryp *cryp, u32 *src,
-			       unsigned int n)
-{
-	scatterwalk_advance(&cryp->in_walk, n);
-
-	if (unlikely(cryp->in_sg->length == _walked_in)) {
-		cryp->in_sg = sg_next(cryp->in_sg);
-		if (cryp->in_sg) {
-			scatterwalk_start(&cryp->in_walk, cryp->in_sg);
-			return (sg_virt(cryp->in_sg) + _walked_in);
-		}
-	}
-
-	return (u32 *)((u8 *)src + n);
-}
-
 static int stm32_cryp_read_auth_tag(struct stm32_cryp *cryp)
 {
-	u32 cfg, size_bit, *dst, d32;
-	u8 *d8;
-	unsigned int i, j;
+	u32 cfg, size_bit;
+	unsigned int i;
 	int ret = 0;
 
 	/* Update Config */
@@ -1240,7 +1142,7 @@ static int stm32_cryp_read_auth_tag(struct stm32_cryp *cryp)
 		stm32_cryp_write(cryp, CRYP_DIN, size_bit);
 
 		size_bit = is_encrypt(cryp) ? cryp->areq->cryptlen :
-				cryp->areq->cryptlen - AES_BLOCK_SIZE;
+				cryp->areq->cryptlen - cryp->authsize;
 		size_bit *= 8;
 		if (cryp->caps->swap_final)
 			size_bit = (__force u32)cpu_to_be32(size_bit);
@@ -1249,11 +1151,9 @@ static int stm32_cryp_read_auth_tag(struct stm32_cryp *cryp)
 		stm32_cryp_write(cryp, CRYP_DIN, size_bit);
 	} else {
 		/* CCM: write CTR0 */
-		u8 iv[AES_BLOCK_SIZE];
-		u32 *iv32 = (u32 *)iv;
-		__be32 *biv;
-
-		biv = (void *)iv;
+		u32 iv32[AES_BLOCK_32];
+		u8 *iv = (u8 *)iv32;
+		__be32 *biv = (__be32 *)iv32;
 
 		memcpy(iv, cryp->areq->iv, AES_BLOCK_SIZE);
 		memset(iv + AES_BLOCK_SIZE - 1 - iv[0], 0, iv[0] + 1);
@@ -1275,39 +1175,18 @@ static int stm32_cryp_read_auth_tag(struct stm32_cryp *cryp)
 	}
 
 	if (is_encrypt(cryp)) {
+		u32 out_tag[AES_BLOCK_32];
+
 		/* Get and write tag */
-		dst = sg_virt(cryp->out_sg) + _walked_out;
+		for (i = 0; i < AES_BLOCK_32; i++)
+			out_tag[i] = stm32_cryp_read(cryp, CRYP_DOUT);
 
-		for (i = 0; i < AES_BLOCK_32; i++) {
-			if (cryp->total_out >= sizeof(u32)) {
-				/* Read a full u32 */
-				*dst = stm32_cryp_read(cryp, CRYP_DOUT);
-
-				dst = stm32_cryp_next_out(cryp, dst,
-							  sizeof(u32));
-				cryp->total_out -= sizeof(u32);
-			} else if (!cryp->total_out) {
-				/* Empty fifo out (data from input padding) */
-				stm32_cryp_read(cryp, CRYP_DOUT);
-			} else {
-				/* Read less than an u32 */
-				d32 = stm32_cryp_read(cryp, CRYP_DOUT);
-				d8 = (u8 *)&d32;
-
-				for (j = 0; j < cryp->total_out; j++) {
-					*((u8 *)dst) = *(d8++);
-					dst = stm32_cryp_next_out(cryp, dst, 1);
-				}
-				cryp->total_out = 0;
-			}
-		}
+		scatterwalk_copychunks(out_tag, &cryp->out_walk, cryp->authsize, 1);
 	} else {
 		/* Get and check tag */
 		u32 in_tag[AES_BLOCK_32], out_tag[AES_BLOCK_32];
 
-		scatterwalk_map_and_copy(in_tag, cryp->in_sg,
-					 cryp->total_in_save - cryp->authsize,
-					 cryp->authsize, 0);
+		scatterwalk_copychunks(in_tag, &cryp->in_walk, cryp->authsize, 0);
 
 		for (i = 0; i < AES_BLOCK_32; i++)
 			out_tag[i] = stm32_cryp_read(cryp, CRYP_DOUT);
@@ -1349,92 +1228,37 @@ static void stm32_cryp_check_ctr_counter(struct stm32_cryp *cryp)
 	cryp->last_ctr[3] = cpu_to_be32(stm32_cryp_read(cryp, CRYP_IV1RR));
 }
 
-static bool stm32_cryp_irq_read_data(struct stm32_cryp *cryp)
+static void stm32_cryp_irq_read_data(struct stm32_cryp *cryp)
 {
-	unsigned int i, j;
-	u32 d32, *dst;
-	u8 *d8;
-	size_t tag_size;
-
-	/* Do no read tag now (if any) */
-	if (is_encrypt(cryp) && (is_gcm(cryp) || is_ccm(cryp)))
-		tag_size = cryp->authsize;
-	else
-		tag_size = 0;
-
-	dst = sg_virt(cryp->out_sg) + _walked_out;
-
-	for (i = 0; i < cryp->hw_blocksize / sizeof(u32); i++) {
-		if (likely(cryp->total_out - tag_size >= sizeof(u32))) {
-			/* Read a full u32 */
-			*dst = stm32_cryp_read(cryp, CRYP_DOUT);
+	unsigned int i;
+	u32 block[AES_BLOCK_32];
 
-			dst = stm32_cryp_next_out(cryp, dst, sizeof(u32));
-			cryp->total_out -= sizeof(u32);
-		} else if (cryp->total_out == tag_size) {
-			/* Empty fifo out (data from input padding) */
-			d32 = stm32_cryp_read(cryp, CRYP_DOUT);
-		} else {
-			/* Read less than an u32 */
-			d32 = stm32_cryp_read(cryp, CRYP_DOUT);
-			d8 = (u8 *)&d32;
-
-			for (j = 0; j < cryp->total_out - tag_size; j++) {
-				*((u8 *)dst) = *(d8++);
-				dst = stm32_cryp_next_out(cryp, dst, 1);
-			}
-			cryp->total_out = tag_size;
-		}
-	}
+	for (i = 0; i < cryp->hw_blocksize / sizeof(u32); i++)
+		block[i] = stm32_cryp_read(cryp, CRYP_DOUT);
 
-	return !(cryp->total_out - tag_size) || !cryp->total_in;
+	scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, cryp->hw_blocksize,
+							     cryp->payload_out), 1);
+	cryp->payload_out -= min_t(size_t, cryp->hw_blocksize,
+				   cryp->payload_out);
 }
 
 static void stm32_cryp_irq_write_block(struct stm32_cryp *cryp)
 {
-	unsigned int i, j;
-	u32 *src;
-	u8 d8[4];
-	size_t tag_size;
-
-	/* Do no write tag (if any) */
-	if (is_decrypt(cryp) && (is_gcm(cryp) || is_ccm(cryp)))
-		tag_size = cryp->authsize;
-	else
-		tag_size = 0;
-
-	src = sg_virt(cryp->in_sg) + _walked_in;
+	unsigned int i;
+	u32 block[AES_BLOCK_32] = {0};
 
-	for (i = 0; i < cryp->hw_blocksize / sizeof(u32); i++) {
-		if (likely(cryp->total_in - tag_size >= sizeof(u32))) {
-			/* Write a full u32 */
-			stm32_cryp_write(cryp, CRYP_DIN, *src);
+	scatterwalk_copychunks(block, &cryp->in_walk, min_t(size_t, cryp->hw_blocksize,
+							    cryp->payload_in), 0);
+	for (i = 0; i < cryp->hw_blocksize / sizeof(u32); i++)
+		stm32_cryp_write(cryp, CRYP_DIN, block[i]);
 
-			src = stm32_cryp_next_in(cryp, src, sizeof(u32));
-			cryp->total_in -= sizeof(u32);
-		} else if (cryp->total_in == tag_size) {
-			/* Write padding data */
-			stm32_cryp_write(cryp, CRYP_DIN, 0);
-		} else {
-			/* Write less than an u32 */
-			memset(d8, 0, sizeof(u32));
-			for (j = 0; j < cryp->total_in - tag_size; j++) {
-				d8[j] = *((u8 *)src);
-				src = stm32_cryp_next_in(cryp, src, 1);
-			}
-
-			stm32_cryp_write(cryp, CRYP_DIN, *(u32 *)d8);
-			cryp->total_in = tag_size;
-		}
-	}
+	cryp->payload_in -= min_t(size_t, cryp->hw_blocksize, cryp->payload_in);
 }
 
 static void stm32_cryp_irq_write_gcm_padded_data(struct stm32_cryp *cryp)
 {
 	int err;
-	u32 cfg, tmp[AES_BLOCK_32];
-	size_t total_in_ori = cryp->total_in;
-	struct scatterlist *out_sg_ori = cryp->out_sg;
+	u32 cfg, block[AES_BLOCK_32] = {0};
 	unsigned int i;
 
 	/* 'Special workaround' procedure described in the datasheet */
@@ -1459,18 +1283,25 @@ static void stm32_cryp_irq_write_gcm_padded_data(struct stm32_cryp *cryp)
 
 	/* b) pad and write the last block */
 	stm32_cryp_irq_write_block(cryp);
-	cryp->total_in = total_in_ori;
+	/* wait end of process */
 	err = stm32_cryp_wait_output(cryp);
 	if (err) {
-		dev_err(cryp->dev, "Timeout (write gcm header)\n");
+		dev_err(cryp->dev, "Timeout (write gcm last data)\n");
 		return stm32_cryp_finish_req(cryp, err);
 	}
 
 	/* c) get and store encrypted data */
-	stm32_cryp_irq_read_data(cryp);
-	scatterwalk_map_and_copy(tmp, out_sg_ori,
-				 cryp->total_in_save - total_in_ori,
-				 total_in_ori, 0);
+	/*
+	 * Same code as stm32_cryp_irq_read_data(), but we want to store
+	 * block value
+	 */
+	for (i = 0; i < cryp->hw_blocksize / sizeof(u32); i++)
+		block[i] = stm32_cryp_read(cryp, CRYP_DOUT);
+
+	scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, cryp->hw_blocksize,
+							     cryp->payload_out), 1);
+	cryp->payload_out -= min_t(size_t, cryp->hw_blocksize,
+				   cryp->payload_out);
 
 	/* d) change mode back to AES GCM */
 	cfg &= ~CR_ALGO_MASK;
@@ -1483,19 +1314,13 @@ static void stm32_cryp_irq_write_gcm_padded_data(struct stm32_cryp *cryp)
 	stm32_cryp_write(cryp, CRYP_CR, cfg);
 
 	/* f) write padded data */
-	for (i = 0; i < AES_BLOCK_32; i++) {
-		if (cryp->total_in)
-			stm32_cryp_write(cryp, CRYP_DIN, tmp[i]);
-		else
-			stm32_cryp_write(cryp, CRYP_DIN, 0);
-
-		cryp->total_in -= min_t(size_t, sizeof(u32), cryp->total_in);
-	}
+	for (i = 0; i < AES_BLOCK_32; i++)
+		stm32_cryp_write(cryp, CRYP_DIN, block[i]);
 
 	/* g) Empty fifo out */
 	err = stm32_cryp_wait_output(cryp);
 	if (err) {
-		dev_err(cryp->dev, "Timeout (write gcm header)\n");
+		dev_err(cryp->dev, "Timeout (write gcm padded data)\n");
 		return stm32_cryp_finish_req(cryp, err);
 	}
 
@@ -1508,16 +1333,14 @@ static void stm32_cryp_irq_write_gcm_padded_data(struct stm32_cryp *cryp)
 
 static void stm32_cryp_irq_set_npblb(struct stm32_cryp *cryp)
 {
-	u32 cfg, payload_bytes;
+	u32 cfg;
 
 	/* disable ip, set NPBLB and reneable ip */
 	cfg = stm32_cryp_read(cryp, CRYP_CR);
 	cfg &= ~CR_CRYPEN;
 	stm32_cryp_write(cryp, CRYP_CR, cfg);
 
-	payload_bytes = is_decrypt(cryp) ? cryp->total_in - cryp->authsize :
-					   cryp->total_in;
-	cfg |= (cryp->hw_blocksize - payload_bytes) << CR_NBPBL_SHIFT;
+	cfg |= (cryp->hw_blocksize - cryp->payload_in) << CR_NBPBL_SHIFT;
 	cfg |= CR_CRYPEN;
 	stm32_cryp_write(cryp, CRYP_CR, cfg);
 }
@@ -1526,13 +1349,11 @@ static void stm32_cryp_irq_write_ccm_padded_data(struct stm32_cryp *cryp)
 {
 	int err = 0;
 	u32 cfg, iv1tmp;
-	u32 cstmp1[AES_BLOCK_32], cstmp2[AES_BLOCK_32], tmp[AES_BLOCK_32];
-	size_t last_total_out, total_in_ori = cryp->total_in;
-	struct scatterlist *out_sg_ori = cryp->out_sg;
+	u32 cstmp1[AES_BLOCK_32], cstmp2[AES_BLOCK_32];
+	u32 block[AES_BLOCK_32] = {0};
 	unsigned int i;
 
 	/* 'Special workaround' procedure described in the datasheet */
-	cryp->flags |= FLG_CCM_PADDED_WA;
 
 	/* a) disable ip */
 	stm32_cryp_write(cryp, CRYP_IMSCR, 0);
@@ -1562,7 +1383,7 @@ static void stm32_cryp_irq_write_ccm_padded_data(struct stm32_cryp *cryp)
 
 	/* b) pad and write the last block */
 	stm32_cryp_irq_write_block(cryp);
-	cryp->total_in = total_in_ori;
+	/* wait end of process */
 	err = stm32_cryp_wait_output(cryp);
 	if (err) {
 		dev_err(cryp->dev, "Timeout (wite ccm padded data)\n");
@@ -1570,13 +1391,16 @@ static void stm32_cryp_irq_write_ccm_padded_data(struct stm32_cryp *cryp)
 	}
 
 	/* c) get and store decrypted data */
-	last_total_out = cryp->total_out;
-	stm32_cryp_irq_read_data(cryp);
+	/*
+	 * Same code as stm32_cryp_irq_read_data(), but we want to store
+	 * block value
+	 */
+	for (i = 0; i < cryp->hw_blocksize / sizeof(u32); i++)
+		block[i] = stm32_cryp_read(cryp, CRYP_DOUT);
 
-	memset(tmp, 0, sizeof(tmp));
-	scatterwalk_map_and_copy(tmp, out_sg_ori,
-				 cryp->total_out_save - last_total_out,
-				 last_total_out, 0);
+	scatterwalk_copychunks(block, &cryp->out_walk, min_t(size_t, cryp->hw_blocksize,
+							     cryp->payload_out), 1);
+	cryp->payload_out -= min_t(size_t, cryp->hw_blocksize, cryp->payload_out);
 
 	/* d) Load again CRYP_CSGCMCCMxR */
 	for (i = 0; i < ARRAY_SIZE(cstmp2); i++)
@@ -1593,10 +1417,10 @@ static void stm32_cryp_irq_write_ccm_padded_data(struct stm32_cryp *cryp)
 	stm32_cryp_write(cryp, CRYP_CR, cfg);
 
 	/* g) XOR and write padded data */
-	for (i = 0; i < ARRAY_SIZE(tmp); i++) {
-		tmp[i] ^= cstmp1[i];
-		tmp[i] ^= cstmp2[i];
-		stm32_cryp_write(cryp, CRYP_DIN, tmp[i]);
+	for (i = 0; i < ARRAY_SIZE(block); i++) {
+		block[i] ^= cstmp1[i];
+		block[i] ^= cstmp2[i];
+		stm32_cryp_write(cryp, CRYP_DIN, block[i]);
 	}
 
 	/* h) wait for completion */
@@ -1610,30 +1434,34 @@ static void stm32_cryp_irq_write_ccm_padded_data(struct stm32_cryp *cryp)
 
 static void stm32_cryp_irq_write_data(struct stm32_cryp *cryp)
 {
-	if (unlikely(!cryp->total_in)) {
+	if (unlikely(!cryp->payload_in)) {
 		dev_warn(cryp->dev, "No more data to process\n");
 		return;
 	}
 
-	if (unlikely(cryp->total_in < AES_BLOCK_SIZE &&
+	if (unlikely(cryp->payload_in < AES_BLOCK_SIZE &&
 		     (stm32_cryp_get_hw_mode(cryp) == CR_AES_GCM) &&
 		     is_encrypt(cryp))) {
 		/* Padding for AES GCM encryption */
-		if (cryp->caps->padding_wa)
+		if (cryp->caps->padding_wa) {
 			/* Special case 1 */
-			return stm32_cryp_irq_write_gcm_padded_data(cryp);
+			stm32_cryp_irq_write_gcm_padded_data(cryp);
+			return;
+		}
 
 		/* Setting padding bytes (NBBLB) */
 		stm32_cryp_irq_set_npblb(cryp);
 	}
 
-	if (unlikely((cryp->total_in - cryp->authsize < AES_BLOCK_SIZE) &&
+	if (unlikely((cryp->payload_in < AES_BLOCK_SIZE) &&
 		     (stm32_cryp_get_hw_mode(cryp) == CR_AES_CCM) &&
 		     is_decrypt(cryp))) {
 		/* Padding for AES CCM decryption */
-		if (cryp->caps->padding_wa)
+		if (cryp->caps->padding_wa) {
 			/* Special case 2 */
-			return stm32_cryp_irq_write_ccm_padded_data(cryp);
+			stm32_cryp_irq_write_ccm_padded_data(cryp);
+			return;
+		}
 
 		/* Setting padding bytes (NBBLB) */
 		stm32_cryp_irq_set_npblb(cryp);
@@ -1645,192 +1473,60 @@ static void stm32_cryp_irq_write_data(struct stm32_cryp *cryp)
 	stm32_cryp_irq_write_block(cryp);
 }
 
-static void stm32_cryp_irq_write_gcm_header(struct stm32_cryp *cryp)
+static void stm32_cryp_irq_write_gcmccm_header(struct stm32_cryp *cryp)
 {
-	int err;
-	unsigned int i, j;
-	u32 cfg, *src;
-
-	src = sg_virt(cryp->in_sg) + _walked_in;
-
-	for (i = 0; i < AES_BLOCK_32; i++) {
-		stm32_cryp_write(cryp, CRYP_DIN, *src);
-
-		src = stm32_cryp_next_in(cryp, src, sizeof(u32));
-		cryp->total_in -= min_t(size_t, sizeof(u32), cryp->total_in);
-
-		/* Check if whole header written */
-		if ((cryp->total_in_save - cryp->total_in) ==
-				cryp->areq->assoclen) {
-			/* Write padding if needed */
-			for (j = i + 1; j < AES_BLOCK_32; j++)
-				stm32_cryp_write(cryp, CRYP_DIN, 0);
-
-			/* Wait for completion */
-			err = stm32_cryp_wait_busy(cryp);
-			if (err) {
-				dev_err(cryp->dev, "Timeout (gcm header)\n");
-				return stm32_cryp_finish_req(cryp, err);
-			}
-
-			if (stm32_cryp_get_input_text_len(cryp)) {
-				/* Phase 3 : payload */
-				cfg = stm32_cryp_read(cryp, CRYP_CR);
-				cfg &= ~CR_CRYPEN;
-				stm32_cryp_write(cryp, CRYP_CR, cfg);
-
-				cfg &= ~CR_PH_MASK;
-				cfg |= CR_PH_PAYLOAD;
-				cfg |= CR_CRYPEN;
-				stm32_cryp_write(cryp, CRYP_CR, cfg);
-			} else {
-				/* Phase 4 : tag */
-				stm32_cryp_write(cryp, CRYP_IMSCR, 0);
-				stm32_cryp_finish_req(cryp, 0);
-			}
-
-			break;
-		}
-
-		if (!cryp->total_in)
-			break;
-	}
-}
+	unsigned int i;
+	u32 block[AES_BLOCK_32] = {0};
+	size_t written;
 
-static void stm32_cryp_irq_write_ccm_header(struct stm32_cryp *cryp)
-{
-	int err;
-	unsigned int i = 0, j, k;
-	u32 alen, cfg, *src;
-	u8 d8[4];
-
-	src = sg_virt(cryp->in_sg) + _walked_in;
-	alen = cryp->areq->assoclen;
-
-	if (!_walked_in) {
-		if (cryp->areq->assoclen <= 65280) {
-			/* Write first u32 of B1 */
-			d8[0] = (alen >> 8) & 0xFF;
-			d8[1] = alen & 0xFF;
-			d8[2] = *((u8 *)src);
-			src = stm32_cryp_next_in(cryp, src, 1);
-			d8[3] = *((u8 *)src);
-			src = stm32_cryp_next_in(cryp, src, 1);
-
-			stm32_cryp_write(cryp, CRYP_DIN, *(u32 *)d8);
-			i++;
-
-			cryp->total_in -= min_t(size_t, 2, cryp->total_in);
-		} else {
-			/* Build the two first u32 of B1 */
-			d8[0] = 0xFF;
-			d8[1] = 0xFE;
-			d8[2] = alen & 0xFF000000;
-			d8[3] = alen & 0x00FF0000;
-
-			stm32_cryp_write(cryp, CRYP_DIN, *(u32 *)d8);
-			i++;
-
-			d8[0] = alen & 0x0000FF00;
-			d8[1] = alen & 0x000000FF;
-			d8[2] = *((u8 *)src);
-			src = stm32_cryp_next_in(cryp, src, 1);
-			d8[3] = *((u8 *)src);
-			src = stm32_cryp_next_in(cryp, src, 1);
-
-			stm32_cryp_write(cryp, CRYP_DIN, *(u32 *)d8);
-			i++;
-
-			cryp->total_in -= min_t(size_t, 2, cryp->total_in);
-		}
-	}
+	written = min_t(size_t, AES_BLOCK_SIZE, cryp->header_in);
 
-	/* Write next u32 */
-	for (; i < AES_BLOCK_32; i++) {
-		/* Build an u32 */
-		memset(d8, 0, sizeof(u32));
-		for (k = 0; k < sizeof(u32); k++) {
-			d8[k] = *((u8 *)src);
-			src = stm32_cryp_next_in(cryp, src, 1);
-
-			cryp->total_in -= min_t(size_t, 1, cryp->total_in);
-			if ((cryp->total_in_save - cryp->total_in) == alen)
-				break;
-		}
+	scatterwalk_copychunks(block, &cryp->in_walk, written, 0);
+	for (i = 0; i < AES_BLOCK_32; i++)
+		stm32_cryp_write(cryp, CRYP_DIN, block[i]);
 
-		stm32_cryp_write(cryp, CRYP_DIN, *(u32 *)d8);
-
-		if ((cryp->total_in_save - cryp->total_in) == alen) {
-			/* Write padding if needed */
-			for (j = i + 1; j < AES_BLOCK_32; j++)
-				stm32_cryp_write(cryp, CRYP_DIN, 0);
-
-			/* Wait for completion */
-			err = stm32_cryp_wait_busy(cryp);
-			if (err) {
-				dev_err(cryp->dev, "Timeout (ccm header)\n");
-				return stm32_cryp_finish_req(cryp, err);
-			}
-
-			if (stm32_cryp_get_input_text_len(cryp)) {
-				/* Phase 3 : payload */
-				cfg = stm32_cryp_read(cryp, CRYP_CR);
-				cfg &= ~CR_CRYPEN;
-				stm32_cryp_write(cryp, CRYP_CR, cfg);
-
-				cfg &= ~CR_PH_MASK;
-				cfg |= CR_PH_PAYLOAD;
-				cfg |= CR_CRYPEN;
-				stm32_cryp_write(cryp, CRYP_CR, cfg);
-			} else {
-				/* Phase 4 : tag */
-				stm32_cryp_write(cryp, CRYP_IMSCR, 0);
-				stm32_cryp_finish_req(cryp, 0);
-			}
+	cryp->header_in -= written;
 
-			break;
-		}
-	}
+	stm32_crypt_gcmccm_end_header(cryp);
 }
 
 static irqreturn_t stm32_cryp_irq_thread(int irq, void *arg)
 {
 	struct stm32_cryp *cryp = arg;
 	u32 ph;
+	u32 it_mask = stm32_cryp_read(cryp, CRYP_IMSCR);
 
 	if (cryp->irq_status & MISR_OUT)
 		/* Output FIFO IRQ: read data */
-		if (unlikely(stm32_cryp_irq_read_data(cryp))) {
-			/* All bytes processed, finish */
-			stm32_cryp_write(cryp, CRYP_IMSCR, 0);
-			stm32_cryp_finish_req(cryp, 0);
-			return IRQ_HANDLED;
-		}
+		stm32_cryp_irq_read_data(cryp);
 
 	if (cryp->irq_status & MISR_IN) {
-		if (is_gcm(cryp)) {
-			ph = stm32_cryp_read(cryp, CRYP_CR) & CR_PH_MASK;
-			if (unlikely(ph == CR_PH_HEADER))
-				/* Write Header */
-				stm32_cryp_irq_write_gcm_header(cryp);
-			else
-				/* Input FIFO IRQ: write data */
-				stm32_cryp_irq_write_data(cryp);
-			cryp->gcm_ctr++;
-		} else if (is_ccm(cryp)) {
+		if (is_gcm(cryp) || is_ccm(cryp)) {
 			ph = stm32_cryp_read(cryp, CRYP_CR) & CR_PH_MASK;
 			if (unlikely(ph == CR_PH_HEADER))
 				/* Write Header */
-				stm32_cryp_irq_write_ccm_header(cryp);
+				stm32_cryp_irq_write_gcmccm_header(cryp);
 			else
 				/* Input FIFO IRQ: write data */
 				stm32_cryp_irq_write_data(cryp);
+			if (is_gcm(cryp))
+				cryp->gcm_ctr++;
 		} else {
 			/* Input FIFO IRQ: write data */
 			stm32_cryp_irq_write_data(cryp);
 		}
 	}
 
+	/* Mask useless interrupts */
+	if (!cryp->payload_in && !cryp->header_in)
+		it_mask &= ~IMSCR_IN;
+	if (!cryp->payload_out)
+		it_mask &= ~IMSCR_OUT;
+	stm32_cryp_write(cryp, CRYP_IMSCR, it_mask);
+
+	if (!cryp->payload_in && !cryp->header_in && !cryp->payload_out)
+		stm32_cryp_finish_req(cryp, 0);
+
 	return IRQ_HANDLED;
 }
 
@@ -1851,7 +1547,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= AES_BLOCK_SIZE,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1868,7 +1564,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= AES_BLOCK_SIZE,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1886,7 +1582,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= 1,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1904,7 +1600,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= DES_BLOCK_SIZE,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1921,7 +1617,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= DES_BLOCK_SIZE,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1939,7 +1635,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= DES_BLOCK_SIZE,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1956,7 +1652,7 @@ static struct skcipher_alg crypto_algs[] = {
 	.base.cra_flags		= CRYPTO_ALG_ASYNC,
 	.base.cra_blocksize	= DES_BLOCK_SIZE,
 	.base.cra_ctxsize	= sizeof(struct stm32_cryp_ctx),
-	.base.cra_alignmask	= 0xf,
+	.base.cra_alignmask	= 0,
 	.base.cra_module	= THIS_MODULE,
 
 	.init			= stm32_cryp_init_tfm,
@@ -1986,7 +1682,7 @@ static struct aead_alg aead_algs[] = {
 		.cra_flags		= CRYPTO_ALG_ASYNC,
 		.cra_blocksize		= 1,
 		.cra_ctxsize		= sizeof(struct stm32_cryp_ctx),
-		.cra_alignmask		= 0xf,
+		.cra_alignmask		= 0,
 		.cra_module		= THIS_MODULE,
 	},
 },
@@ -2006,7 +1702,7 @@ static struct aead_alg aead_algs[] = {
 		.cra_flags		= CRYPTO_ALG_ASYNC,
 		.cra_blocksize		= 1,
 		.cra_ctxsize		= sizeof(struct stm32_cryp_ctx),
-		.cra_alignmask		= 0xf,
+		.cra_alignmask		= 0,
 		.cra_module		= THIS_MODULE,
 	},
 },
-- 
GitLab


From b35263f000a5a4686bfc6431e5347b307f5aff64 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 1 Dec 2021 17:30:41 +1100
Subject: [PATCH 3029/4878] crypto: stm32 - Revert broken
 pm_runtime_resume_and_get changes

[ Upstream commit 3d6b661330a7954d8136df98160d525eb04dcd6a ]

We should not call pm_runtime_resume_and_get where the reference
count is expected to be incremented unconditionally.  This patch
reverts these calls to the original unconditional get_sync call.

Reported-by: Heiner Kallweit <hkallweit1@gmail.com>
Fixes: 747bf30fd944 ("crypto: stm32/cryp - Fix PM reference leak...")
Fixes: 1cb3ad701970 ("crypto: stm32/hash - Fix PM reference leak...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/stm32/stm32-cryp.c | 3 ++-
 drivers/crypto/stm32/stm32-hash.c | 6 +++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index cd57c5bae3ce9..81eb136b6c11d 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -529,7 +529,8 @@ static int stm32_cryp_hw_init(struct stm32_cryp *cryp)
 {
 	int ret;
 	u32 cfg, hw_mode;
-	pm_runtime_resume_and_get(cryp->dev);
+
+	pm_runtime_get_sync(cryp->dev);
 
 	/* Disable interrupt */
 	stm32_cryp_write(cryp, CRYP_IMSCR, 0);
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index ff5362da118d8..16bb52836b28d 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -812,7 +812,7 @@ static void stm32_hash_finish_req(struct ahash_request *req, int err)
 static int stm32_hash_hw_init(struct stm32_hash_dev *hdev,
 			      struct stm32_hash_request_ctx *rctx)
 {
-	pm_runtime_resume_and_get(hdev->dev);
+	pm_runtime_get_sync(hdev->dev);
 
 	if (!(HASH_FLAGS_INIT & hdev->flags)) {
 		stm32_hash_write(hdev, HASH_CR, HASH_CR_INIT);
@@ -961,7 +961,7 @@ static int stm32_hash_export(struct ahash_request *req, void *out)
 	u32 *preg;
 	unsigned int i;
 
-	pm_runtime_resume_and_get(hdev->dev);
+	pm_runtime_get_sync(hdev->dev);
 
 	while ((stm32_hash_read(hdev, HASH_SR) & HASH_SR_BUSY))
 		cpu_relax();
@@ -999,7 +999,7 @@ static int stm32_hash_import(struct ahash_request *req, const void *in)
 
 	preg = rctx->hw_context;
 
-	pm_runtime_resume_and_get(hdev->dev);
+	pm_runtime_get_sync(hdev->dev);
 
 	stm32_hash_write(hdev, HASH_IMR, *preg++);
 	stm32_hash_write(hdev, HASH_STR, *preg++);
-- 
GitLab


From 3e51460638a67f602e27b30c7e2f66255a797d74 Mon Sep 17 00:00:00 2001
From: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Date: Thu, 9 Dec 2021 23:07:01 +0530
Subject: [PATCH 3030/4878] ath11k: Fix deleting uninitialized kernel timer
 during fragment cache flush

[ Upstream commit ba53ee7f7f38cf0592b8be1dcdabaf8f7535f8c1 ]

frag_timer will be created & initialized for stations when
they associate and will be deleted during every key installation
while flushing old fragments.

For AP interface self peer will be created and Group keys
will be installed for this peer, but there will be no real
Station entry & hence frag_timer won't be created and
initialized, deleting such uninitialized kernel timers causes below
warnings and backtraces printed with CONFIG_DEBUG_OBJECTS_TIMERS
enabled.

[ 177.828008] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0
[ 177.836833] WARNING: CPU: 3 PID: 188 at lib/debugobjects.c:508 debug_print_object+0xb0/0xf0
[ 177.845185] Modules linked in: ath11k_pci ath11k qmi_helpers qrtr_mhi qrtr ns mhi
[ 177.852679] CPU: 3 PID: 188 Comm: hostapd Not tainted 5.14.0-rc3-32919-g4034139e1838-dirty #14
[ 177.865805] pstate: 60000005 (nZCv daif -PAN -UAO -TCO BTYPE=--)
[ 177.871804] pc : debug_print_object+0xb0/0xf0
[ 177.876155] lr : debug_print_object+0xb0/0xf0
[ 177.880505] sp : ffffffc01169b5a0
[ 177.883810] x29: ffffffc01169b5a0 x28: ffffff80081c2320 x27: ffffff80081c4078
[ 177.890942] x26: ffffff8003fe8f28 x25: ffffff8003de9890 x24: ffffffc01134d738
[ 177.898075] x23: ffffffc010948f20 x22: ffffffc010b2d2e0 x21: ffffffc01169b628
[ 177.905206] x20: ffffffc01134d700 x19: ffffffc010c80d98 x18: 00000000000003f6
[ 177.912339] x17: 203a657079742074 x16: 63656a626f202930 x15: 0000000000000152
[ 177.919471] x14: 0000000000000152 x13: 00000000ffffffea x12: ffffffc010d732e0
[ 177.926603] x11: 0000000000000003 x10: ffffffc010d432a0 x9 : ffffffc010d432f8
[ 177.933735] x8 : 000000000002ffe8 x7 : c0000000ffffdfff x6 : 0000000000000001
[ 177.940866] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 00000000ffffffff
[ 177.947997] x2 : ffffffc010c93240 x1 : ffffff80023624c0 x0 : 0000000000000054
[ 177.955130] Call trace:
[ 177.957567] debug_print_object+0xb0/0xf0
[ 177.961570] debug_object_assert_init+0x124/0x178
[ 177.966269] try_to_del_timer_sync+0x1c/0x70
[ 177.970536] del_timer_sync+0x30/0x50
[ 177.974192] ath11k_peer_frags_flush+0x34/0x68 [ath11k]
[ 177.979439] ath11k_mac_op_set_key+0x1e4/0x338 [ath11k]
[ 177.984673] ieee80211_key_enable_hw_accel+0xc8/0x3d0
[ 177.989722] ieee80211_key_replace+0x360/0x740
[ 177.994160] ieee80211_key_link+0x16c/0x210
[ 177.998337] ieee80211_add_key+0x138/0x338
[ 178.002426] nl80211_new_key+0xfc/0x258
[ 178.006257] genl_family_rcv_msg_doit.isra.17+0xd8/0x120
[ 178.011565] genl_rcv_msg+0xd8/0x1c8
[ 178.015134] netlink_rcv_skb+0x38/0xf8
[ 178.018877] genl_rcv+0x34/0x48
[ 178.022012] netlink_unicast+0x174/0x230
[ 178.025928] netlink_sendmsg+0x188/0x388
[ 178.029845] ____sys_sendmsg+0x218/0x250
[ 178.033763] ___sys_sendmsg+0x68/0x90
[ 178.037418] __sys_sendmsg+0x44/0x88
[ 178.040988] __arm64_sys_sendmsg+0x20/0x28
[ 178.045077] invoke_syscall.constprop.5+0x54/0xe0
[ 178.049776] do_el0_svc+0x74/0xc0
[ 178.053084] el0_svc+0x10/0x18
[ 178.056133] el0t_64_sync_handler+0x88/0xb0
[ 178.060310] el0t_64_sync+0x148/0x14c
[ 178.063966] ---[ end trace 8a5cf0bf9d34a058 ]---

Add changes to not to delete frag timer for peers during
group key installation.

Tested on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01092-QCAHKSWPL_SILICONZ-1

Fixes: c3944a562102 ("ath11k: Clear the fragment cache during key install")
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1639071421-25078-1-git-send-email-quic_ramess@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index b4f8494e3c707..835ce805b63ec 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2531,7 +2531,7 @@ static int ath11k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	/* flush the fragments cache during key (re)install to
 	 * ensure all frags in the new frag list belong to the same key.
 	 */
-	if (peer && cmd == SET_KEY)
+	if (peer && sta && cmd == SET_KEY)
 		ath11k_peer_frags_flush(ar, peer);
 	spin_unlock_bh(&ab->base_lock);
 
-- 
GitLab


From 958a8819d41420d7a74ed922a09cacc0ba3a4218 Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@gmail.com>
Date: Mon, 6 Dec 2021 01:43:34 +0100
Subject: [PATCH 3031/4878] ARM: dts: gemini: NAS4220-B: fis-index-block with
 128 KiB sectors

[ Upstream commit 4754eab7e5a78bdefe7a960c5c260c95ebbb5fa6 ]

Steven Maddox reported in the OpenWrt bugzilla, that his
RaidSonic IB-NAS4220-B was no longer booting with the new
OpenWrt 21.02 (uses linux 5.10's device-tree). However, it was
working with the previous OpenWrt 19.07 series (uses 4.14).

|[    5.548038] No RedBoot partition table detected in 30000000.flash
|[    5.618553] Searching for RedBoot partition table in 30000000.flash at offset 0x0
|[    5.739093] No RedBoot partition table detected in 30000000.flash
|...
|[    7.039504] Waiting for root device /dev/mtdblock3...

The provided bootlog shows that the RedBoot partition parser was
looking for the partition table "at offset 0x0". Which is strange
since the comment in the device-tree says it should be at 0xfe0000.

Further digging on the internet led to a review site that took
some useful PCB pictures of their review unit back in February 2009.
Their picture shows a Spansion S29GL128N11TFI01 flash chip.

>From Spansion's Datasheet:
"S29GL128N: One hundred twenty-eight 64 Kword (128 Kbyte) sectors"
Steven also provided a "cat /sys/class/mtd/mtd0/erasesize" from his
unit: "131072".

With the 128 KiB Sector/Erasesize in mind. This patch changes the
fis-index-block property to (0xfe0000 / 0x20000) = 0x7f.

Fixes: b5a923f8c739 ("ARM: dts: gemini: Switch to redboot partition parsing")
Reported-by: Steven Maddox <s.maddox@lantizia.me.uk>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Steven Maddox <s.maddox@lantizia.me.uk>
Link: https://lore.kernel.org/r/20211206004334.4169408-1-linus.walleij@linaro.org'
Bugzilla: https://bugs.openwrt.org/index.php?do=details&task_id=4137
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/gemini-nas4220b.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/gemini-nas4220b.dts b/arch/arm/boot/dts/gemini-nas4220b.dts
index 13112a8a5dd88..6544c730340fa 100644
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -84,7 +84,7 @@
 			partitions {
 				compatible = "redboot-fis";
 				/* Eraseblock at 0xfe0000 */
-				fis-index-block = <0x1fc>;
+				fis-index-block = <0x7f>;
 			};
 		};
 
-- 
GitLab


From a79327bb019131a0d0571257b3f3925b00a98637 Mon Sep 17 00:00:00 2001
From: Anton Vasilyev <vasilyev@ispras.ru>
Date: Thu, 22 Aug 2019 12:41:47 +0200
Subject: [PATCH 3032/4878] media: dw2102: Fix use after free

[ Upstream commit 589a9f0eb799f77de2c09583bf5bad221fa5d685 ]

dvb_usb_device_init stores parts of properties at d->props
and d->desc and uses it on dvb_usb_device_exit.
Free of properties on module probe leads to use after free.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204597

The patch makes properties static instead of allocated on heap to prevent
memleak and use after free.
Also fixes s421_properties.devices initialization to have 2 element
instead of 6 copied from p7500_properties.

[mchehab: fix function call alignments]
Link: https://lore.kernel.org/linux-media/20190822104147.4420-1-vasilyev@ispras.ru
Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Fixes: 299c7007e936 ("media: dw2102: Fix memleak on sequence of probes")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/dvb-usb/dw2102.c | 338 ++++++++++++++++++-----------
 1 file changed, 215 insertions(+), 123 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
index a27a684403252..aa929db56db1f 100644
--- a/drivers/media/usb/dvb-usb/dw2102.c
+++ b/drivers/media/usb/dvb-usb/dw2102.c
@@ -2148,46 +2148,153 @@ static struct dvb_usb_device_properties s6x0_properties = {
 	}
 };
 
-static const struct dvb_usb_device_description d1100 = {
-	"Prof 1100 USB ",
-	{&dw2102_table[PROF_1100], NULL},
-	{NULL},
-};
+static struct dvb_usb_device_properties p1100_properties = {
+	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
+	.usb_ctrl = DEVICE_SPECIFIC,
+	.size_of_priv = sizeof(struct dw2102_state),
+	.firmware = P1100_FIRMWARE,
+	.no_reconnect = 1,
 
-static const struct dvb_usb_device_description d660 = {
-	"TeVii S660 USB",
-	{&dw2102_table[TEVII_S660], NULL},
-	{NULL},
-};
+	.i2c_algo = &s6x0_i2c_algo,
+	.rc.core = {
+		.rc_interval = 150,
+		.rc_codes = RC_MAP_TBS_NEC,
+		.module_name = "dw2102",
+		.allowed_protos   = RC_PROTO_BIT_NEC,
+		.rc_query = prof_rc_query,
+	},
 
-static const struct dvb_usb_device_description d480_1 = {
-	"TeVii S480.1 USB",
-	{&dw2102_table[TEVII_S480_1], NULL},
-	{NULL},
+	.generic_bulk_ctrl_endpoint = 0x81,
+	.num_adapters = 1,
+	.download_firmware = dw2102_load_firmware,
+	.read_mac_address = s6x0_read_mac_address,
+	.adapter = {
+		{
+			.num_frontends = 1,
+			.fe = {{
+				.frontend_attach = stv0288_frontend_attach,
+				.stream = {
+					.type = USB_BULK,
+					.count = 8,
+					.endpoint = 0x82,
+					.u = {
+						.bulk = {
+							.buffersize = 4096,
+						}
+					}
+				},
+			} },
+		}
+	},
+	.num_device_descs = 1,
+	.devices = {
+		{"Prof 1100 USB ",
+			{&dw2102_table[PROF_1100], NULL},
+			{NULL},
+		},
+	}
 };
 
-static const struct dvb_usb_device_description d480_2 = {
-	"TeVii S480.2 USB",
-	{&dw2102_table[TEVII_S480_2], NULL},
-	{NULL},
-};
+static struct dvb_usb_device_properties s660_properties = {
+	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
+	.usb_ctrl = DEVICE_SPECIFIC,
+	.size_of_priv = sizeof(struct dw2102_state),
+	.firmware = S660_FIRMWARE,
+	.no_reconnect = 1,
 
-static const struct dvb_usb_device_description d7500 = {
-	"Prof 7500 USB DVB-S2",
-	{&dw2102_table[PROF_7500], NULL},
-	{NULL},
-};
+	.i2c_algo = &s6x0_i2c_algo,
+	.rc.core = {
+		.rc_interval = 150,
+		.rc_codes = RC_MAP_TEVII_NEC,
+		.module_name = "dw2102",
+		.allowed_protos   = RC_PROTO_BIT_NEC,
+		.rc_query = dw2102_rc_query,
+	},
 
-static const struct dvb_usb_device_description d421 = {
-	"TeVii S421 PCI",
-	{&dw2102_table[TEVII_S421], NULL},
-	{NULL},
+	.generic_bulk_ctrl_endpoint = 0x81,
+	.num_adapters = 1,
+	.download_firmware = dw2102_load_firmware,
+	.read_mac_address = s6x0_read_mac_address,
+	.adapter = {
+		{
+			.num_frontends = 1,
+			.fe = {{
+				.frontend_attach = ds3000_frontend_attach,
+				.stream = {
+					.type = USB_BULK,
+					.count = 8,
+					.endpoint = 0x82,
+					.u = {
+						.bulk = {
+							.buffersize = 4096,
+						}
+					}
+				},
+			} },
+		}
+	},
+	.num_device_descs = 3,
+	.devices = {
+		{"TeVii S660 USB",
+			{&dw2102_table[TEVII_S660], NULL},
+			{NULL},
+		},
+		{"TeVii S480.1 USB",
+			{&dw2102_table[TEVII_S480_1], NULL},
+			{NULL},
+		},
+		{"TeVii S480.2 USB",
+			{&dw2102_table[TEVII_S480_2], NULL},
+			{NULL},
+		},
+	}
 };
 
-static const struct dvb_usb_device_description d632 = {
-	"TeVii S632 USB",
-	{&dw2102_table[TEVII_S632], NULL},
-	{NULL},
+static struct dvb_usb_device_properties p7500_properties = {
+	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
+	.usb_ctrl = DEVICE_SPECIFIC,
+	.size_of_priv = sizeof(struct dw2102_state),
+	.firmware = P7500_FIRMWARE,
+	.no_reconnect = 1,
+
+	.i2c_algo = &s6x0_i2c_algo,
+	.rc.core = {
+		.rc_interval = 150,
+		.rc_codes = RC_MAP_TBS_NEC,
+		.module_name = "dw2102",
+		.allowed_protos   = RC_PROTO_BIT_NEC,
+		.rc_query = prof_rc_query,
+	},
+
+	.generic_bulk_ctrl_endpoint = 0x81,
+	.num_adapters = 1,
+	.download_firmware = dw2102_load_firmware,
+	.read_mac_address = s6x0_read_mac_address,
+	.adapter = {
+		{
+			.num_frontends = 1,
+			.fe = {{
+				.frontend_attach = prof_7500_frontend_attach,
+				.stream = {
+					.type = USB_BULK,
+					.count = 8,
+					.endpoint = 0x82,
+					.u = {
+						.bulk = {
+							.buffersize = 4096,
+						}
+					}
+				},
+			} },
+		}
+	},
+	.num_device_descs = 1,
+	.devices = {
+		{"Prof 7500 USB DVB-S2",
+			{&dw2102_table[PROF_7500], NULL},
+			{NULL},
+		},
+	}
 };
 
 static struct dvb_usb_device_properties su3000_properties = {
@@ -2267,6 +2374,59 @@ static struct dvb_usb_device_properties su3000_properties = {
 	}
 };
 
+static struct dvb_usb_device_properties s421_properties = {
+	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
+	.usb_ctrl = DEVICE_SPECIFIC,
+	.size_of_priv = sizeof(struct dw2102_state),
+	.power_ctrl = su3000_power_ctrl,
+	.num_adapters = 1,
+	.identify_state	= su3000_identify_state,
+	.i2c_algo = &su3000_i2c_algo,
+
+	.rc.core = {
+		.rc_interval = 150,
+		.rc_codes = RC_MAP_SU3000,
+		.module_name = "dw2102",
+		.allowed_protos   = RC_PROTO_BIT_RC5,
+		.rc_query = su3000_rc_query,
+	},
+
+	.read_mac_address = su3000_read_mac_address,
+
+	.generic_bulk_ctrl_endpoint = 0x01,
+
+	.adapter = {
+		{
+		.num_frontends = 1,
+		.fe = {{
+			.streaming_ctrl   = su3000_streaming_ctrl,
+			.frontend_attach  = m88rs2000_frontend_attach,
+			.stream = {
+				.type = USB_BULK,
+				.count = 8,
+				.endpoint = 0x82,
+				.u = {
+					.bulk = {
+						.buffersize = 4096,
+					}
+				}
+			}
+		} },
+		}
+	},
+	.num_device_descs = 2,
+	.devices = {
+		{ "TeVii S421 PCI",
+			{ &dw2102_table[TEVII_S421], NULL },
+			{ NULL },
+		},
+		{ "TeVii S632 USB",
+			{ &dw2102_table[TEVII_S632], NULL },
+			{ NULL },
+		},
+	}
+};
+
 static struct dvb_usb_device_properties t220_properties = {
 	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
 	.usb_ctrl = DEVICE_SPECIFIC,
@@ -2384,101 +2544,33 @@ static struct dvb_usb_device_properties tt_s2_4600_properties = {
 static int dw2102_probe(struct usb_interface *intf,
 		const struct usb_device_id *id)
 {
-	int retval = -ENOMEM;
-	struct dvb_usb_device_properties *p1100;
-	struct dvb_usb_device_properties *s660;
-	struct dvb_usb_device_properties *p7500;
-	struct dvb_usb_device_properties *s421;
-
-	p1100 = kmemdup(&s6x0_properties,
-			sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
-	if (!p1100)
-		goto err0;
-
-	/* copy default structure */
-	/* fill only different fields */
-	p1100->firmware = P1100_FIRMWARE;
-	p1100->devices[0] = d1100;
-	p1100->rc.core.rc_query = prof_rc_query;
-	p1100->rc.core.rc_codes = RC_MAP_TBS_NEC;
-	p1100->adapter->fe[0].frontend_attach = stv0288_frontend_attach;
-
-	s660 = kmemdup(&s6x0_properties,
-		       sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
-	if (!s660)
-		goto err1;
-
-	s660->firmware = S660_FIRMWARE;
-	s660->num_device_descs = 3;
-	s660->devices[0] = d660;
-	s660->devices[1] = d480_1;
-	s660->devices[2] = d480_2;
-	s660->adapter->fe[0].frontend_attach = ds3000_frontend_attach;
-
-	p7500 = kmemdup(&s6x0_properties,
-			sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
-	if (!p7500)
-		goto err2;
-
-	p7500->firmware = P7500_FIRMWARE;
-	p7500->devices[0] = d7500;
-	p7500->rc.core.rc_query = prof_rc_query;
-	p7500->rc.core.rc_codes = RC_MAP_TBS_NEC;
-	p7500->adapter->fe[0].frontend_attach = prof_7500_frontend_attach;
-
-
-	s421 = kmemdup(&su3000_properties,
-		       sizeof(struct dvb_usb_device_properties), GFP_KERNEL);
-	if (!s421)
-		goto err3;
-
-	s421->num_device_descs = 2;
-	s421->devices[0] = d421;
-	s421->devices[1] = d632;
-	s421->adapter->fe[0].frontend_attach = m88rs2000_frontend_attach;
-
-	if (0 == dvb_usb_device_init(intf, &dw2102_properties,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, &dw2104_properties,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, &dw3101_properties,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, &s6x0_properties,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, p1100,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, s660,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, p7500,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, s421,
-			THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, &su3000_properties,
-			 THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, &t220_properties,
-			 THIS_MODULE, NULL, adapter_nr) ||
-	    0 == dvb_usb_device_init(intf, &tt_s2_4600_properties,
-			 THIS_MODULE, NULL, adapter_nr)) {
-
-		/* clean up copied properties */
-		kfree(s421);
-		kfree(p7500);
-		kfree(s660);
-		kfree(p1100);
+	if (!(dvb_usb_device_init(intf, &dw2102_properties,
+			          THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &dw2104_properties,
+				  THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &dw3101_properties,
+			          THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &s6x0_properties,
+			          THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &p1100_properties,
+			          THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &s660_properties,
+				  THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &p7500_properties,
+				  THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &s421_properties,
+				  THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &su3000_properties,
+				  THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &t220_properties,
+				  THIS_MODULE, NULL, adapter_nr) &&
+	      dvb_usb_device_init(intf, &tt_s2_4600_properties,
+				  THIS_MODULE, NULL, adapter_nr))) {
 
 		return 0;
 	}
 
-	retval = -ENODEV;
-	kfree(s421);
-err3:
-	kfree(p7500);
-err2:
-	kfree(s660);
-err1:
-	kfree(p1100);
-err0:
-	return retval;
+	return -ENODEV;
 }
 
 static void dw2102_disconnect(struct usb_interface *intf)
-- 
GitLab


From 1a8869de328a51949505ec0acfbb8168c54ec48f Mon Sep 17 00:00:00 2001
From: Wang Hai <wanghai38@huawei.com>
Date: Tue, 26 Oct 2021 13:23:48 +0200
Subject: [PATCH 3033/4878] media: msi001: fix possible null-ptr-deref in
 msi001_probe()

[ Upstream commit 3d5831a40d3464eea158180eb12cbd81c5edfb6a ]

I got a null-ptr-deref report:

BUG: kernel NULL pointer dereference, address: 0000000000000060
...
RIP: 0010:v4l2_ctrl_auto_cluster+0x57/0x270
...
Call Trace:
 msi001_probe+0x13b/0x24b [msi001]
 spi_probe+0xeb/0x130
...
 do_syscall_64+0x35/0xb0

In msi001_probe(), if the creation of control for bandwidth_auto
fails, there will be a null-ptr-deref issue when it is used in
v4l2_ctrl_auto_cluster().

Check dev->hdl.error before v4l2_ctrl_auto_cluster() to fix this bug.

Link: https://lore.kernel.org/linux-media/20211026112348.2878040-1-wanghai38@huawei.com
Fixes: 93203dd6c7c4 ("[media] msi001: Mirics MSi001 silicon tuner driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/tuners/msi001.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/media/tuners/msi001.c b/drivers/media/tuners/msi001.c
index 78e6fd600d8ef..44247049a3190 100644
--- a/drivers/media/tuners/msi001.c
+++ b/drivers/media/tuners/msi001.c
@@ -442,6 +442,13 @@ static int msi001_probe(struct spi_device *spi)
 			V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
 	dev->bandwidth = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
 			V4L2_CID_RF_TUNER_BANDWIDTH, 200000, 8000000, 1, 200000);
+	if (dev->hdl.error) {
+		ret = dev->hdl.error;
+		dev_err(&spi->dev, "Could not initialize controls\n");
+		/* control init failed, free handler */
+		goto err_ctrl_handler_free;
+	}
+
 	v4l2_ctrl_auto_cluster(2, &dev->bandwidth_auto, 0, false);
 	dev->lna_gain = v4l2_ctrl_new_std(&dev->hdl, &msi001_ctrl_ops,
 			V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
-- 
GitLab


From f6e4a6cbdb6fa32d204356da1b6d102b663df78b Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Mon, 6 Dec 2021 03:22:01 +0100
Subject: [PATCH 3034/4878] media: coda/imx-vdoa: Handle dma_set_coherent_mask
 error codes

[ Upstream commit 43f0633f89947df57fe0b5025bdd741768007708 ]

The return value of dma_set_coherent_mask() is not always 0.
To catch the exception in case that dma is not support the mask.

Link: https://lore.kernel.org/linux-media/20211206022201.1639460-1-jiasheng@iscas.ac.cn
Fixes: b0444f18e0b1 ("[media] coda: add i.MX6 VDOA driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/coda/imx-vdoa.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/coda/imx-vdoa.c b/drivers/media/platform/coda/imx-vdoa.c
index 8bc0d83718193..dd6e2e320264e 100644
--- a/drivers/media/platform/coda/imx-vdoa.c
+++ b/drivers/media/platform/coda/imx-vdoa.c
@@ -287,7 +287,11 @@ static int vdoa_probe(struct platform_device *pdev)
 	struct resource *res;
 	int ret;
 
-	dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(&pdev->dev, "DMA enable failed\n");
+		return ret;
+	}
 
 	vdoa = devm_kzalloc(&pdev->dev, sizeof(*vdoa), GFP_KERNEL);
 	if (!vdoa)
-- 
GitLab


From 394ee480aa3e3397fbccd946ed124f876ff4ca68 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Mon, 13 Dec 2021 11:53:07 +0200
Subject: [PATCH 3035/4878] ath11k: Fix a NULL pointer dereference in
 ath11k_mac_op_hw_scan()

[ Upstream commit eccd25136386a04ebf46a64f3a34e8e0fab6d9e1 ]

In ath11k_mac_op_hw_scan(), the return value of kzalloc() is directly
used in memcpy(), which may lead to a NULL pointer dereference on
failure of kzalloc().

Fix this bug by adding a check of arg.extraie.ptr.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_ATH11K=m show no new warnings, and our static
analyzer no longer warns about this code.

Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211202155348.71315-1-zhou1615@umn.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 835ce805b63ec..18e841e1a016d 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2320,9 +2320,12 @@ static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw,
 	arg.scan_id = ATH11K_SCAN_ID;
 
 	if (req->ie_len) {
+		arg.extraie.ptr = kmemdup(req->ie, req->ie_len, GFP_KERNEL);
+		if (!arg.extraie.ptr) {
+			ret = -ENOMEM;
+			goto exit;
+		}
 		arg.extraie.len = req->ie_len;
-		arg.extraie.ptr = kzalloc(req->ie_len, GFP_KERNEL);
-		memcpy(arg.extraie.ptr, req->ie, req->ie_len);
 	}
 
 	if (req->n_ssids) {
-- 
GitLab


From 6f20a5a98a906796572b14ea5c56373ef8a5384f Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 9 Dec 2021 17:53:41 +0000
Subject: [PATCH 3036/4878] arm64: dts: qcom: c630: Fix soundcard setup

[ Upstream commit c02b360ca67ebeb9de07b47b2fe53f964c2561d1 ]

Currently Soundcard has 1 rx device for headset and SoundWire Speaker Playback.

This setup has issues, ex if we try to play on headset the audio stream is
also sent to SoundWire Speakers and we will hear sound in both headsets and speakers.

Make a separate device for Speakers and Headset so that the streams are
different and handled properly.

Fixes: 45021d35fcb2 ("arm64: dts: qcom: c630: Enable audio support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211209175342.20386-2-srinivas.kandagatla@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index ad6561843ba28..e080c317b5e3d 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -365,6 +365,10 @@
 	dai@1 {
 		reg = <1>;
 	};
+
+	dai@2 {
+		reg = <2>;
+	};
 };
 
 &sound {
@@ -377,6 +381,7 @@
 		"SpkrLeft IN", "SPK1 OUT",
 		"SpkrRight IN", "SPK2 OUT",
 		"MM_DL1",  "MultiMedia1 Playback",
+		"MM_DL3",  "MultiMedia3 Playback",
 		"MultiMedia2 Capture", "MM_UL2";
 
 	mm1-dai-link {
@@ -393,6 +398,13 @@
 		};
 	};
 
+	mm3-dai-link {
+		link-name = "MultiMedia3";
+		cpu {
+			sound-dai = <&q6asmdai  MSM_FRONTEND_DAI_MULTIMEDIA3>;
+		};
+	};
+
 	slim-dai-link {
 		link-name = "SLIM Playback";
 		cpu {
@@ -422,6 +434,21 @@
 			sound-dai = <&wcd9340 1>;
 		};
 	};
+
+	slim-wcd-dai-link {
+		link-name = "SLIM WCD Playback";
+		cpu {
+			sound-dai = <&q6afedai SLIMBUS_1_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6routing>;
+		};
+
+		codec {
+			sound-dai =  <&wcd9340 2>;
+		};
+	};
 };
 
 &tlmm {
-- 
GitLab


From 3580055d1fca178be359bef6831d6741b5a23921 Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Tue, 7 Dec 2021 09:27:10 +0200
Subject: [PATCH 3037/4878] arm64: dts: qcom: ipq6018: Fix gpio-ranges property

[ Upstream commit 72cb4c48a46a7cfa58eb5842c0d3672ddd5bd9ad ]

There must be three parameters in gpio-ranges property. Fixes this not
very helpful error message:

  OF: /soc/pinctrl@1000000: (null) = 3 found 3

Fixes: 1e8277854b49 ("arm64: dts: Add ipq6018 SoC and CP01 board support")
Cc: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/8a744cfd96aff5754bfdcf7298d208ddca5b319a.1638862030.git.baruch@tkos.co.il
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/ipq6018.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
index 9cb8f7a052df9..2a1f03cdb52c7 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -221,7 +221,7 @@
 			interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
 			gpio-controller;
 			#gpio-cells = <2>;
-			gpio-ranges = <&tlmm 0 80>;
+			gpio-ranges = <&tlmm 0 0 80>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
 
-- 
GitLab


From db97fc2c4425969d48abc0865564af587fd92c9f Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Thu, 2 Dec 2021 01:26:27 +0300
Subject: [PATCH 3038/4878] drm/msm/dpu: fix safe status debugfs file

[ Upstream commit f31b0e24d31e18b4503eeaf0032baeacc0beaff6 ]

Make safe_status debugfs fs file actually return safe status rather than
danger status data.

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://lore.kernel.org/r/20211201222633.2476780-3-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index b4a2e8eb35dd2..08e082d0443af 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -71,8 +71,8 @@ static int _dpu_danger_signal_status(struct seq_file *s,
 					&status);
 	} else {
 		seq_puts(s, "\nSafe signal status:\n");
-		if (kms->hw_mdp->ops.get_danger_status)
-			kms->hw_mdp->ops.get_danger_status(kms->hw_mdp,
+		if (kms->hw_mdp->ops.get_safe_status)
+			kms->hw_mdp->ops.get_safe_status(kms->hw_mdp,
 					&status);
 	}
 	pm_runtime_put_sync(&kms->pdev->dev);
-- 
GitLab


From b230114bc57a3a0c9da11a18954e747b5bb92c5d Mon Sep 17 00:00:00 2001
From: Stephen Boyd <swboyd@chromium.org>
Date: Tue, 14 Dec 2021 16:25:29 -0800
Subject: [PATCH 3039/4878] drm/bridge: ti-sn65dsi86: Set max register for
 regmap

[ Upstream commit 0b665d4af35837f0a0ae63135b84a3c187c1db3b ]

Set the maximum register to 0xff so we can dump the registers for this
device in debugfs.

Fixes: a095f15c00e2 ("drm/bridge: add support for sn65dsi86 bridge driver")
Cc: Rob Clark <robdclark@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215002529.382383-1-swboyd@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index ecdf9b01340f5..1a58481037b3f 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -171,6 +171,7 @@ static const struct regmap_config ti_sn_bridge_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &ti_sn_bridge_volatile_table,
 	.cache_type = REGCACHE_NONE,
+	.max_register = 0xFF,
 };
 
 static void ti_sn_bridge_write_u16(struct ti_sn_bridge *pdata,
-- 
GitLab


From 3849ec830bf714d57d08a0efd1e1125b023ee4e7 Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 10 Dec 2021 17:54:44 +0000
Subject: [PATCH 3040/4878] drm/tegra: vic: Fix DMA API misuse

[ Upstream commit 5566174cb10a5167d59b0793871cab7990b149b8 ]

Upon failure, dma_alloc_coherent() returns NULL. If that does happen,
passing some uninitialised stack contents to dma_mapping_error() - which
belongs to a different API in the first place - has precious little
chance of detecting it.

Also include the correct header, because the fragile transitive
inclusion currently providing it is going to break soon.

Fixes: 20e7dce255e9 ("drm/tegra: Remove memory allocation from Falcon library")
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Mikko Perttunen <mperttunen@nvidia.com>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/tegra/vic.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c
index b77f726303d89..ec0e4d8f0aade 100644
--- a/drivers/gpu/drm/tegra/vic.c
+++ b/drivers/gpu/drm/tegra/vic.c
@@ -5,6 +5,7 @@
 
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/dma-mapping.h>
 #include <linux/host1x.h>
 #include <linux/iommu.h>
 #include <linux/module.h>
@@ -265,10 +266,8 @@ static int vic_load_firmware(struct vic *vic)
 
 	if (!client->group) {
 		virt = dma_alloc_coherent(vic->dev, size, &iova, GFP_KERNEL);
-
-		err = dma_mapping_error(vic->dev, iova);
-		if (err < 0)
-			return err;
+		if (!virt)
+			return -ENOMEM;
 	} else {
 		virt = tegra_drm_alloc(tegra, size, &iova);
 	}
-- 
GitLab


From 37441ddadc1e02a33c866ff836d5229ed600e78a Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Mon, 29 Nov 2021 19:26:25 +0100
Subject: [PATCH 3041/4878] media: hantro: Fix probe func error path

[ Upstream commit 37af43b250fda6162005d47bf7c959c70d52b107 ]

If clocks for some reason couldn't be enabled, probe function returns
immediately, without disabling PM. This obviously leaves PM ref counters
unbalanced.

Fix that by jumping to appropriate error path, so effects of PM functions
are reversed.

Fixes: 775fec69008d ("media: add Rockchip VPU JPEG encoder driver")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/hantro/hantro_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 7749ca9a8ebbf..bc97ec0a7e4af 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -829,7 +829,7 @@ static int hantro_probe(struct platform_device *pdev)
 	ret = clk_bulk_prepare(vpu->variant->num_clocks, vpu->clocks);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to prepare clocks\n");
-		return ret;
+		goto err_pm_disable;
 	}
 
 	ret = v4l2_device_register(&pdev->dev, &vpu->v4l2_dev);
@@ -885,6 +885,7 @@ err_v4l2_unreg:
 	v4l2_device_unregister(&vpu->v4l2_dev);
 err_clk_unprepare:
 	clk_bulk_unprepare(vpu->variant->num_clocks, vpu->clocks);
+err_pm_disable:
 	pm_runtime_dont_use_autosuspend(vpu->dev);
 	pm_runtime_disable(vpu->dev);
 	return ret;
-- 
GitLab


From db369047e3b3b597319550d6cd029dabfe0a6e7a Mon Sep 17 00:00:00 2001
From: Antony Antony <antony.antony@secunet.com>
Date: Sun, 12 Dec 2021 11:34:30 +0100
Subject: [PATCH 3042/4878] xfrm: interface with if_id 0 should return error

[ Upstream commit 8dce43919566f06e865f7e8949f5c10d8c2493f5 ]

xfrm interface if_id = 0 would cause xfrm policy lookup errors since
Commit 9f8550e4bd9d.

Now explicitly fail to create an xfrm interface when if_id = 0

With this commit:
 ip link add ipsec0  type xfrm dev lo  if_id 0
 Error: if_id must be non zero.

v1->v2 change:
 - add Fixes: tag

Fixes: 9f8550e4bd9d ("xfrm: fix disable_xfrm sysctl when used on xfrm interfaces")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Reviewed-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_interface.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index e9ce23343f5ca..e1fae61a5bb90 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -643,11 +643,16 @@ static int xfrmi_newlink(struct net *src_net, struct net_device *dev,
 			struct netlink_ext_ack *extack)
 {
 	struct net *net = dev_net(dev);
-	struct xfrm_if_parms p;
+	struct xfrm_if_parms p = {};
 	struct xfrm_if *xi;
 	int err;
 
 	xfrmi_netlink_parms(data, &p);
+	if (!p.if_id) {
+		NL_SET_ERR_MSG(extack, "if_id must be non zero");
+		return -EINVAL;
+	}
+
 	xi = xfrmi_locate(net, &p);
 	if (xi)
 		return -EEXIST;
@@ -672,7 +677,12 @@ static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[],
 {
 	struct xfrm_if *xi = netdev_priv(dev);
 	struct net *net = xi->net;
-	struct xfrm_if_parms p;
+	struct xfrm_if_parms p = {};
+
+	if (!p.if_id) {
+		NL_SET_ERR_MSG(extack, "if_id must be non zero");
+		return -EINVAL;
+	}
 
 	xfrmi_netlink_parms(data, &p);
 	xi = xfrmi_locate(net, &p);
-- 
GitLab


From 47dd693c94bf48c7fef470f845f9a1cb41d8328a Mon Sep 17 00:00:00 2001
From: Antony Antony <antony.antony@secunet.com>
Date: Sun, 12 Dec 2021 11:35:00 +0100
Subject: [PATCH 3043/4878] xfrm: state and policy should fail if XFRMA_IF_ID 0

[ Upstream commit 68ac0f3810e76a853b5f7b90601a05c3048b8b54 ]

xfrm ineterface does not allow xfrm if_id = 0
fail to create or update xfrm state and policy.

With this commit:
 ip xfrm policy add src 192.0.2.1 dst 192.0.2.2 dir out if_id 0
 RTNETLINK answers: Invalid argument

 ip xfrm state add src 192.0.2.1 dst 192.0.2.2 proto esp spi 1 \
            reqid 1 mode tunnel aead 'rfc4106(gcm(aes))' \
            0x1111111111111111111111111111111111111111 96 if_id 0
 RTNETLINK answers: Invalid argument

v1->v2 change:
 - add Fixes: tag

Fixes: 9f8550e4bd9d ("xfrm: fix disable_xfrm sysctl when used on xfrm interfaces")
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_user.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 97f7ebf5324e7..ddf1b3a5f7c1f 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -621,8 +621,13 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
 
 	xfrm_smark_init(attrs, &x->props.smark);
 
-	if (attrs[XFRMA_IF_ID])
+	if (attrs[XFRMA_IF_ID]) {
 		x->if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
+		if (!x->if_id) {
+			err = -EINVAL;
+			goto error;
+		}
+	}
 
 	err = __xfrm_init_state(x, false, attrs[XFRMA_OFFLOAD_DEV]);
 	if (err)
@@ -1353,8 +1358,13 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	mark = xfrm_mark_get(attrs, &m);
 
-	if (attrs[XFRMA_IF_ID])
+	if (attrs[XFRMA_IF_ID]) {
 		if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
+		if (!if_id) {
+			err = -EINVAL;
+			goto out_noput;
+		}
+	}
 
 	if (p->info.seq) {
 		x = xfrm_find_acq_byseq(net, mark, p->info.seq);
@@ -1667,8 +1677,13 @@ static struct xfrm_policy *xfrm_policy_construct(struct net *net, struct xfrm_us
 
 	xfrm_mark_get(attrs, &xp->mark);
 
-	if (attrs[XFRMA_IF_ID])
+	if (attrs[XFRMA_IF_ID]) {
 		xp->if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
+		if (!xp->if_id) {
+			err = -EINVAL;
+			goto error;
+		}
+	}
 
 	return xp;
  error:
-- 
GitLab


From 2a65da5a1ea3a379d5f4e6eaa8647058a70ded3d Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@arm.com>
Date: Mon, 22 Nov 2021 16:28:43 +0100
Subject: [PATCH 3044/4878] ARM: 9159/1: decompressor: Avoid UNPREDICTABLE NOP
 encoding

[ Upstream commit a92882a4d270fbcc021ee6848de5e48b7f0d27f3 ]

In the decompressor's head.S we need to start with an instruction that
is some kind of NOP, but also mimics as the PE/COFF header, when the
kernel is linked as an UEFI application. The clever solution here is
"tstne r0, #0x4d000", which in the worst case just clobbers the
condition flags, and bears the magic "MZ" signature in the lowest 16 bits.

However the encoding used (0x13105a4d) is actually not valid, since bits
[15:12] are supposed to be 0 (written as "(0)" in the ARM ARM).
Violating this is UNPREDICTABLE, and *can* trigger an UNDEFINED
exception. Common Cortex cores seem to ignore those bits, but QEMU
chooses to trap, so the code goes fishing because of a missing exception
handler at this point. We are just saved by the fact that commonly (with
-kernel or when running from U-Boot) the "Z" bit is set, so the
instruction is never executed. See [0] for more details.

To make things more robust and avoid UNPREDICTABLE behaviour in the
kernel code, lets replace this with a "two-instruction NOP":
The first instruction is an exclusive OR, the effect of which the second
instruction reverts. This does not leave any trace, neither in a
register nor in the condition flags. Also it's a perfectly valid
encoding. Kudos to Peter Maydell for coming up with this gem.

[0] https://lore.kernel.org/qemu-devel/YTPIdbUCmwagL5%2FD@os.inf.tu-dresden.de/T/

Link: https://lore.kernel.org/linux-arm-kernel/20210908162617.104962-1-andre.przywara@arm.com/T/

Fixes: 81a0bc39ea19 ("ARM: add UEFI stub support")
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reported-by: Adam Lackorzynski <adam@l4re.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/compressed/efi-header.S | 22 ++++++++++++++--------
 arch/arm/boot/compressed/head.S       |  3 ++-
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S
index c0e7a745103e2..230030c130853 100644
--- a/arch/arm/boot/compressed/efi-header.S
+++ b/arch/arm/boot/compressed/efi-header.S
@@ -9,16 +9,22 @@
 #include <linux/sizes.h>
 
 		.macro	__nop
-#ifdef CONFIG_EFI_STUB
-		@ This is almost but not quite a NOP, since it does clobber the
-		@ condition flags. But it is the best we can do for EFI, since
-		@ PE/COFF expects the magic string "MZ" at offset 0, while the
-		@ ARM/Linux boot protocol expects an executable instruction
-		@ there.
-		.inst	MZ_MAGIC | (0x1310 << 16)	@ tstne r0, #0x4d000
-#else
  AR_CLASS(	mov	r0, r0		)
   M_CLASS(	nop.w			)
+		.endm
+
+		.macro __initial_nops
+#ifdef CONFIG_EFI_STUB
+		@ This is a two-instruction NOP, which happens to bear the
+		@ PE/COFF signature "MZ" in the first two bytes, so the kernel
+		@ is accepted as an EFI binary. Booting via the UEFI stub
+		@ will not execute those instructions, but the ARM/Linux
+		@ boot protocol does, so we need some NOPs here.
+		.inst	MZ_MAGIC | (0xe225 << 16)	@ eor r5, r5, 0x4d000
+		eor	r5, r5, 0x4d000			@ undo previous insn
+#else
+		__nop
+		__nop
 #endif
 		.endm
 
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 247ce90559901..7a38c63b62bf0 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -190,7 +190,8 @@ start:
 		 * were patching the initial instructions of the kernel, i.e
 		 * had started to exploit this "patch area".
 		 */
-		.rept	7
+		__initial_nops
+		.rept	5
 		__nop
 		.endr
 #ifndef CONFIG_THUMB2_KERNEL
-- 
GitLab


From 407ef1db40363b7861a102ec8fcf7170cbd05d18 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Fri, 17 Dec 2021 16:34:28 +0800
Subject: [PATCH 3045/4878] usb: ftdi-elan: fix memory leak on device
 disconnect

[ Upstream commit 1646566b5e0c556f779180a8514e521ac735de1e ]

'ftdi' is alloced when probe device, but not free on device disconnect,
this cause a memory leak as follows:

unreferenced object 0xffff88800d584000 (size 8400):
  comm "kworker/0:2", pid 3809, jiffies 4295453055 (age 13.784s)
  hex dump (first 32 bytes):
    00 40 58 0d 80 88 ff ff 00 40 58 0d 80 88 ff ff  .@X......@X.....
    00 00 00 00 00 00 00 00 00 00 00 00 ad 4e ad de  .............N..
  backtrace:
    [<000000000d47f947>] kmalloc_order_trace+0x19/0x110 mm/slab_common.c:960
    [<000000008548ac68>] ftdi_elan_probe+0x8c/0x880 drivers/usb/misc/ftdi-elan.c:2647
    [<000000007f73e422>] usb_probe_interface+0x31b/0x800 drivers/usb/core/driver.c:396
    [<00000000fe8d07fc>] really_probe+0x299/0xc30 drivers/base/dd.c:517
    [<0000000005da7d32>] __driver_probe_device+0x357/0x500 drivers/base/dd.c:751
    [<000000003c2c9579>] driver_probe_device+0x4e/0x140 drivers/base/dd.c:781

Fix it by freeing 'ftdi' after nobody use it.

Fixes: a5c66e4b2418 ("USB: ftdi-elan: client driver for ELAN Uxxx adapters")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20211217083428.2441-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/misc/ftdi-elan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 8a3d9c0c8d8bc..157b31d354ac2 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -202,6 +202,7 @@ static void ftdi_elan_delete(struct kref *kref)
 	mutex_unlock(&ftdi_module_lock);
 	kfree(ftdi->bulk_in_buffer);
 	ftdi->bulk_in_buffer = NULL;
+	kfree(ftdi);
 }
 
 static void ftdi_elan_put_kref(struct usb_ftdi *ftdi)
-- 
GitLab


From 874b97e86278e7325e88131f5c4cb7441b21ae5d Mon Sep 17 00:00:00 2001
From: Robert Marko <robert.marko@sartura.hr>
Date: Fri, 12 Nov 2021 14:44:02 +0100
Subject: [PATCH 3046/4878] arm64: dts: marvell: cn9130: add GPIO and SPI
 aliases

[ Upstream commit effd42600b987c1e95f946b14fefc1c7639e7439 ]

CN9130 has one CP115 built in, which like the CP110 has 2 GPIO and 2 SPI
controllers built-in.

However, unlike the Armada 7k and 8k the SoC DTSI doesn't add the required
aliases as both the Orion SPI driver and MVEBU GPIO drivers require the
aliases to be present.

So add the required aliases for GPIO and SPI controllers.

Fixes: 6b8970bd8d7a ("arm64: dts: marvell: Add support for Marvell CN9130 SoC support")

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/cn9130.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/cn9130.dtsi b/arch/arm64/boot/dts/marvell/cn9130.dtsi
index a2b7e5ec979d3..71769ac7f0585 100644
--- a/arch/arm64/boot/dts/marvell/cn9130.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9130.dtsi
@@ -11,6 +11,13 @@
 	model = "Marvell Armada CN9130 SoC";
 	compatible = "marvell,cn9130", "marvell,armada-ap807-quad",
 		     "marvell,armada-ap807";
+
+	aliases {
+		gpio1 = &cp0_gpio1;
+		gpio2 = &cp0_gpio2;
+		spi1 = &cp0_spi0;
+		spi2 = &cp0_spi1;
+	};
 };
 
 /*
-- 
GitLab


From 1f5428e43806ea0eb12dfa573815715da6347cdb Mon Sep 17 00:00:00 2001
From: Robert Marko <robert.marko@sartura.hr>
Date: Fri, 12 Nov 2021 14:44:03 +0100
Subject: [PATCH 3047/4878] arm64: dts: marvell: cn9130: enable CP0 GPIO
 controllers

[ Upstream commit 0734f8311ce72c9041e5142769eff2083889c172 ]

CN9130 has a built-in CP115 which has 2 GPIO controllers, but unlike in
Armada 7k and 8k both are left disabled by the SoC DTSI.

This first of all makes no sense as they are always present due to being
SoC built-in and its an issue as boards like CN9130-CRB use the CPO GPIO2
pins for regulators and SD card support without enabling them first.

So, enable both of them like Armada 7k and 8k do.

Fixes: 6b8970bd8d7a ("arm64: dts: marvell: Add support for Marvell CN9130 SoC support")

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/cn9130.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/cn9130.dtsi b/arch/arm64/boot/dts/marvell/cn9130.dtsi
index 71769ac7f0585..327b04134134f 100644
--- a/arch/arm64/boot/dts/marvell/cn9130.dtsi
+++ b/arch/arm64/boot/dts/marvell/cn9130.dtsi
@@ -42,3 +42,11 @@
 #undef CP11X_PCIE0_BASE
 #undef CP11X_PCIE1_BASE
 #undef CP11X_PCIE2_BASE
+
+&cp0_gpio1 {
+	status = "okay";
+};
+
+&cp0_gpio2 {
+	status = "okay";
+};
-- 
GitLab


From 86b0122d2682ab3af934a8648110e251f62ce6c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Tue, 9 Nov 2021 17:46:04 +0100
Subject: [PATCH 3048/4878] ARM: dts: armada-38x: Add generic compatible to
 UART nodes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 62480772263ab6b52e758f2346c70a526abd1d28 ]

Add generic compatible string "ns16550a" to serial port nodes of Armada
38x.

This makes it possible to use earlycon.

Fixes: 0d3d96ab0059 ("ARM: mvebu: add Device Tree description of the Armada 380/385 SoCs")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/armada-38x.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index 9b1a24cc5e91f..df3c8d1d8f641 100644
--- a/arch/arm/boot/dts/armada-38x.dtsi
+++ b/arch/arm/boot/dts/armada-38x.dtsi
@@ -168,7 +168,7 @@
 			};
 
 			uart0: serial@12000 {
-				compatible = "marvell,armada-38x-uart";
+				compatible = "marvell,armada-38x-uart", "ns16550a";
 				reg = <0x12000 0x100>;
 				reg-shift = <2>;
 				interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
@@ -178,7 +178,7 @@
 			};
 
 			uart1: serial@12100 {
-				compatible = "marvell,armada-38x-uart";
+				compatible = "marvell,armada-38x-uart", "ns16550a";
 				reg = <0x12100 0x100>;
 				reg-shift = <2>;
 				interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
-- 
GitLab


From a750fcd604a66098d28788e7d8624d8cb1c957de Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Sun, 19 Dec 2021 11:14:18 +0200
Subject: [PATCH 3049/4878] iwlwifi: mvm: fix 32-bit build in FTM

[ Upstream commit 8b0f92549f2c2458200935c12a2e2a6e80234cf5 ]

On a 32-bit build, the division here needs to be done
using do_div(), otherwise the compiler will try to call
a function that doesn't exist, thus failing to build.

Fixes: b68bd2e3143a ("iwlwifi: mvm: Add FTM initiator RTT smoothing logic")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219111352.e56cbf614a4d.Ib98004ccd2c7a55fd883a8ea7eebd810f406dec6@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
index a0ce761d0c59b..fe3d52620a897 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
@@ -967,7 +967,8 @@ static void iwl_mvm_ftm_rtt_smoothing(struct iwl_mvm *mvm,
 	overshoot = IWL_MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT;
 	alpha = IWL_MVM_FTM_INITIATOR_SMOOTH_ALPHA;
 
-	rtt_avg = (alpha * rtt + (100 - alpha) * resp->rtt_avg) / 100;
+	rtt_avg = alpha * rtt + (100 - alpha) * resp->rtt_avg;
+	do_div(rtt_avg, 100);
 
 	IWL_DEBUG_INFO(mvm,
 		       "%pM: prev rtt_avg=%lld, new rtt_avg=%lld, rtt=%lld\n",
-- 
GitLab


From bdc6c9fc5f78abbbf329139e4decb104ddd96e47 Mon Sep 17 00:00:00 2001
From: Nathan Errera <nathan.errera@intel.com>
Date: Sun, 19 Dec 2021 12:18:15 +0200
Subject: [PATCH 3050/4878] iwlwifi: mvm: test roc running status bits before
 removing the sta

[ Upstream commit 998e1aba6e5eb35370eaf30ccc1823426ec11f90 ]

In some cases the sta is being removed twice since we do not test the
roc aux running before removing it. Start looking at the bit before
removing the sta.

Signed-off-by: Nathan Errera <nathan.errera@intel.com>
Fixes: 2c2c3647cde4 ("iwlwifi: mvm: support ADD_STA_CMD_API_S ver 12")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219121514.d5376ac6bcb0.Ic5f8470ea60c072bde9d1503e5f528b65e301e20@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/intel/iwlwifi/mvm/time-event.c   | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index 394598b14a173..a633ad5f8ca4e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -98,14 +98,13 @@ void iwl_mvm_roc_done_wk(struct work_struct *wk)
 	struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, roc_done_wk);
 
 	/*
-	 * Clear the ROC_RUNNING /ROC_AUX_RUNNING status bit.
+	 * Clear the ROC_RUNNING status bit.
 	 * This will cause the TX path to drop offchannel transmissions.
 	 * That would also be done by mac80211, but it is racy, in particular
 	 * in the case that the time event actually completed in the firmware
 	 * (which is handled in iwl_mvm_te_handle_notif).
 	 */
 	clear_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status);
-	clear_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status);
 
 	synchronize_net();
 
@@ -131,9 +130,19 @@ void iwl_mvm_roc_done_wk(struct work_struct *wk)
 			mvmvif = iwl_mvm_vif_from_mac80211(mvm->p2p_device_vif);
 			iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true);
 		}
-	} else {
+	}
+
+	/*
+	 * Clear the ROC_AUX_RUNNING status bit.
+	 * This will cause the TX path to drop offchannel transmissions.
+	 * That would also be done by mac80211, but it is racy, in particular
+	 * in the case that the time event actually completed in the firmware
+	 * (which is handled in iwl_mvm_te_handle_notif).
+	 */
+	if (test_and_clear_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) {
 		/* do the same in case of hot spot 2.0 */
 		iwl_mvm_flush_sta(mvm, &mvm->aux_sta, true);
+
 		/* In newer version of this command an aux station is added only
 		 * in cases of dedicated tx queue and need to be removed in end
 		 * of use */
-- 
GitLab


From decb2099549d9618fb3483306843f0f3d74686d0 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Fri, 17 Dec 2021 23:27:16 +0300
Subject: [PATCH 3051/4878] mmc: meson-mx-sdhc: add IRQ check

[ Upstream commit 77bed755e0f06135faccdd3948863703f9a6e640 ]

The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to devm_request_threaded_irq()
(which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding
an original error code. Stop calling devm_request_threaded_irq() with the
invalid IRQ #s.

Fixes: e4bf1b0970ef ("mmc: host: meson-mx-sdhc: new driver for the Amlogic Meson SDHC host")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20211217202717.10041-2-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/meson-mx-sdhc-mmc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/meson-mx-sdhc-mmc.c b/drivers/mmc/host/meson-mx-sdhc-mmc.c
index 8fdd0bbbfa21f..28aa78aa08f3f 100644
--- a/drivers/mmc/host/meson-mx-sdhc-mmc.c
+++ b/drivers/mmc/host/meson-mx-sdhc-mmc.c
@@ -854,6 +854,11 @@ static int meson_mx_sdhc_probe(struct platform_device *pdev)
 		goto err_disable_pclk;
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		ret = irq;
+		goto err_disable_pclk;
+	}
+
 	ret = devm_request_threaded_irq(dev, irq, meson_mx_sdhc_irq,
 					meson_mx_sdhc_irq_thread, IRQF_ONESHOT,
 					NULL, host);
-- 
GitLab


From 3253cf09146420bda0991eecc6fa9ab2268228e2 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Fri, 17 Dec 2021 23:27:17 +0300
Subject: [PATCH 3052/4878] mmc: meson-mx-sdio: add IRQ check

[ Upstream commit 8fc9a77bc64e1f23d07953439817d8402ac9706f ]

The driver neglects to check the result of platform_get_irq()'s call and
blithely passes the negative error codes to devm_request_threaded_irq()
(which takes *unsigned* IRQ #), causing it to fail with -EINVAL, overriding
an original error code. Stop calling devm_request_threaded_irq() with the
invalid IRQ #s.

Fixes: ed80a13bb4c4 ("mmc: meson-mx-sdio: Add a driver for the Amlogic Meson8 and Meson8b SoC")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20211217202717.10041-3-s.shtylyov@omp.ru
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/meson-mx-sdio.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c
index 1c5299cd0cbe1..264aae2a2b0cf 100644
--- a/drivers/mmc/host/meson-mx-sdio.c
+++ b/drivers/mmc/host/meson-mx-sdio.c
@@ -663,6 +663,11 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		ret = irq;
+		goto error_free_mmc;
+	}
+
 	ret = devm_request_threaded_irq(host->controller_dev, irq,
 					meson_mx_mmc_irq,
 					meson_mx_mmc_irq_thread, IRQF_ONESHOT,
-- 
GitLab


From b2b1b490bd2983c84566c94b4bf3b0e4279f3ea7 Mon Sep 17 00:00:00 2001
From: Bernard Zhao <bernard@vivo.com>
Date: Fri, 10 Dec 2021 04:03:58 -0800
Subject: [PATCH 3053/4878] selinux: fix potential memleak in selinux_add_opt()

[ Upstream commit 2e08df3c7c4e4e74e3dd5104c100f0bf6288aaa8 ]

This patch try to fix potential memleak in error branch.

Fixes: ba6418623385 ("selinux: new helper - selinux_add_opt()")
Signed-off-by: Bernard Zhao <bernard@vivo.com>
[PM: tweak the subject line, add Fixes tag]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/selinux/hooks.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index ff2191ae53528..86159b32921cc 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -947,18 +947,22 @@ out:
 static int selinux_add_opt(int token, const char *s, void **mnt_opts)
 {
 	struct selinux_mnt_opts *opts = *mnt_opts;
+	bool is_alloc_opts = false;
 
 	if (token == Opt_seclabel)	/* eaten and completely ignored */
 		return 0;
 
+	if (!s)
+		return -ENOMEM;
+
 	if (!opts) {
 		opts = kzalloc(sizeof(struct selinux_mnt_opts), GFP_KERNEL);
 		if (!opts)
 			return -ENOMEM;
 		*mnt_opts = opts;
+		is_alloc_opts = true;
 	}
-	if (!s)
-		return -ENOMEM;
+
 	switch (token) {
 	case Opt_context:
 		if (opts->context || opts->defcontext)
@@ -983,6 +987,10 @@ static int selinux_add_opt(int token, const char *s, void **mnt_opts)
 	}
 	return 0;
 Einval:
+	if (is_alloc_opts) {
+		kfree(opts);
+		*mnt_opts = NULL;
+	}
 	pr_warn(SEL_MOUNT_FAIL_MSG);
 	return -EINVAL;
 }
-- 
GitLab


From 8411722e5652c37b36cfa56640c7e67c0d0306ff Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 31 Aug 2021 09:27:53 +0200
Subject: [PATCH 3054/4878] um: fix ndelay/udelay defines

[ Upstream commit 5f8539e2ff962e25b57742ca7106456403abbc94 ]

Many places in the kernel use 'udelay' as an identifier, and
are broken with the current "#define udelay um_udelay". Fix
this by adding an argument to the macro, and do the same to
'ndelay' as well, just in case.

Fixes: 0bc8fb4dda2b ("um: Implement ndelay/udelay in time-travel mode")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/um/include/asm/delay.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/include/asm/delay.h b/arch/um/include/asm/delay.h
index 56fc2b8f2dd01..e79b2ab6f40c8 100644
--- a/arch/um/include/asm/delay.h
+++ b/arch/um/include/asm/delay.h
@@ -14,7 +14,7 @@ static inline void um_ndelay(unsigned long nsecs)
 	ndelay(nsecs);
 }
 #undef ndelay
-#define ndelay um_ndelay
+#define ndelay(n) um_ndelay(n)
 
 static inline void um_udelay(unsigned long usecs)
 {
@@ -26,5 +26,5 @@ static inline void um_udelay(unsigned long usecs)
 	udelay(usecs);
 }
 #undef udelay
-#define udelay um_udelay
+#define udelay(n) um_udelay(n)
 #endif /* __UM_DELAY_H */
-- 
GitLab


From 1a2241ad400b8d7b8f1a1adef5c5b67829a63934 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 16 Sep 2021 13:09:22 +0200
Subject: [PATCH 3055/4878] um: virtio_uml: Fix time-travel external time
 propagation

[ Upstream commit 85e73968a040c642fd38f6cba5b73b61f5d0f052 ]

When creating an external event, the current time needs to
be propagated to other participants of a simulation. This
is done in the places here where we kick a virtq etc.

However, it must be done for _all_ external events, and
that includes making the initial socket connection and
later closing it. Call time_travel_propagate_time() to do
this before making or closing the socket connection.

Apparently, at least for the initial connection creation,
due to the remote side in my use cases using microseconds
(rather than nanoseconds), this wasn't a problem yet; only
started failing between 5.14-rc1 and 5.15-rc1 (didn't test
others much), or possibly depending on the configuration,
where more delays happen before the virtio devices are
initialized.

Fixes: 88ce64249233 ("um: Implement time-travel=ext")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/um/drivers/virtio_uml.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/um/drivers/virtio_uml.c b/arch/um/drivers/virtio_uml.c
index d11b3d41c3785..d5d768188b3ba 100644
--- a/arch/um/drivers/virtio_uml.c
+++ b/arch/um/drivers/virtio_uml.c
@@ -1076,6 +1076,8 @@ static void virtio_uml_release_dev(struct device *d)
 			container_of(d, struct virtio_device, dev);
 	struct virtio_uml_device *vu_dev = to_virtio_uml_device(vdev);
 
+	time_travel_propagate_time();
+
 	/* might not have been opened due to not negotiating the feature */
 	if (vu_dev->req_fd >= 0) {
 		um_free_irq(VIRTIO_IRQ, vu_dev);
@@ -1109,6 +1111,8 @@ static int virtio_uml_probe(struct platform_device *pdev)
 	vu_dev->pdev = pdev;
 	vu_dev->req_fd = -1;
 
+	time_travel_propagate_time();
+
 	do {
 		rc = os_connect_socket(pdata->socket_path);
 	} while (rc == -EINTR);
-- 
GitLab


From 009bb7ee15779b70726c12ecdac6450bc1a4b47b Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Wed, 8 Dec 2021 15:35:48 -0800
Subject: [PATCH 3056/4878] Bluetooth: L2CAP: Fix using wrong mode

[ Upstream commit 30d57722732d9736554f85f75f9d7ad5402d192e ]

If user has a set to use SOCK_STREAM the socket would default to
L2CAP_MODE_ERTM which later needs to be adjusted if the destination
address is LE which doesn't support such mode.

Fixes: 15f02b9105625 ("Bluetooth: L2CAP: Add initial code for Enhanced Credit Based Mode")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/l2cap_sock.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 4574c5cb1b596..251017c69ab7f 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -161,7 +161,11 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		break;
 	}
 
-	if (chan->psm && bdaddr_type_is_le(chan->src_type))
+	/* Use L2CAP_MODE_LE_FLOWCTL (CoC) in case of LE address and
+	 * L2CAP_MODE_EXT_FLOWCTL (ECRED) has not been set.
+	 */
+	if (chan->psm && bdaddr_type_is_le(chan->src_type) &&
+	    chan->mode != L2CAP_MODE_EXT_FLOWCTL)
 		chan->mode = L2CAP_MODE_LE_FLOWCTL;
 
 	chan->state = BT_BOUND;
@@ -255,7 +259,11 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 			return -EINVAL;
 	}
 
-	if (chan->psm && bdaddr_type_is_le(chan->src_type) && !chan->mode)
+	/* Use L2CAP_MODE_LE_FLOWCTL (CoC) in case of LE address and
+	 * L2CAP_MODE_EXT_FLOWCTL (ECRED) has not been set.
+	 */
+	if (chan->psm && bdaddr_type_is_le(chan->src_type) &&
+	    chan->mode != L2CAP_MODE_EXT_FLOWCTL)
 		chan->mode = L2CAP_MODE_LE_FLOWCTL;
 
 	l2cap_sock_init_pid(sk);
-- 
GitLab


From e668ac6506d3f45bf36b1f8463f62ce5e2776732 Mon Sep 17 00:00:00 2001
From: Paul Chaignon <paul@isovalent.com>
Date: Mon, 20 Dec 2021 22:45:28 +0100
Subject: [PATCH 3057/4878] bpftool: Enable line buffering for stdout

[ Upstream commit 1a1a0b0364ad291bd8e509da104ac8b5b1afec5d ]

The output of bpftool prog tracelog is currently buffered, which is
inconvenient when piping the output into other commands. A simple
tracelog | grep will typically not display anything. This patch fixes it
by enabling line buffering on stdout for the whole bpftool binary.

Fixes: 30da46b5dc3a ("tools: bpftool: add a command to dump the trace pipe")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Paul Chaignon <paul@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211220214528.GA11706@Mem
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/bpf/bpftool/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index c58a135dc355e..1854d6b978604 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -396,6 +396,8 @@ int main(int argc, char **argv)
 	};
 	int opt, ret;
 
+	setlinebuf(stdout);
+
 	last_do_help = do_help;
 	pretty_output = false;
 	json_output = false;
-- 
GitLab


From f4ed4fc504fda6fd001b053d1e369ad632293158 Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 15 Nov 2021 21:34:51 +0100
Subject: [PATCH 3058/4878] backlight: qcom-wled: Validate enabled string
 indices in DT

[ Upstream commit c05b21ebc5bce3ecc78c2c71afd76d92c790a2ac ]

The strings passed in DT may possibly cause out-of-bounds register
accesses and should be validated before use.

Fixes: 775d2ffb4af6 ("backlight: qcom-wled: Restructure the driver for WLED3")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115203459.1634079-2-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/qcom-wled.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index cd11c57764381..2c4290f082025 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -1528,12 +1528,28 @@ static int wled_configure(struct wled *wled)
 	string_len = of_property_count_elems_of_size(dev->of_node,
 						     "qcom,enabled-strings",
 						     sizeof(u32));
-	if (string_len > 0)
+	if (string_len > 0) {
+		if (string_len > wled->max_string_count) {
+			dev_err(dev, "Cannot have more than %d strings\n",
+				wled->max_string_count);
+			return -EINVAL;
+		}
+
 		of_property_read_u32_array(dev->of_node,
 						"qcom,enabled-strings",
 						wled->cfg.enabled_strings,
 						sizeof(u32));
 
+		for (i = 0; i < string_len; ++i) {
+			if (wled->cfg.enabled_strings[i] >= wled->max_string_count) {
+				dev_err(dev,
+					"qcom,enabled-strings index %d at %d is out of bounds\n",
+					wled->cfg.enabled_strings[i], i);
+				return -EINVAL;
+			}
+		}
+	}
+
 	return 0;
 }
 
-- 
GitLab


From 09aed85e8c983b0e6bfaafb7fdccdc90d4b058ea Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 15 Nov 2021 21:34:52 +0100
Subject: [PATCH 3059/4878] backlight: qcom-wled: Pass number of elements to
 read to read_u32_array

[ Upstream commit e29e24bdabfeddbf8b1a4ecac1af439a85150438 ]

of_property_read_u32_array takes the number of elements to read as last
argument. This does not always need to be 4 (sizeof(u32)) but should
instead be the size of the array in DT as read just above with
of_property_count_elems_of_size.

To not make such an error go unnoticed again the driver now bails
accordingly when of_property_read_u32_array returns an error.
Surprisingly the indentation of newlined arguments is lining up again
after prepending `rc = `.

Fixes: 775d2ffb4af6 ("backlight: qcom-wled: Restructure the driver for WLED3")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115203459.1634079-3-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/qcom-wled.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 2c4290f082025..92df5a9f6ae51 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -1535,10 +1535,15 @@ static int wled_configure(struct wled *wled)
 			return -EINVAL;
 		}
 
-		of_property_read_u32_array(dev->of_node,
+		rc = of_property_read_u32_array(dev->of_node,
 						"qcom,enabled-strings",
 						wled->cfg.enabled_strings,
-						sizeof(u32));
+						string_len);
+		if (rc) {
+			dev_err(dev, "Failed to read %d elements from qcom,enabled-strings: %d\n",
+				string_len, rc);
+			return rc;
+		}
 
 		for (i = 0; i < string_len; ++i) {
 			if (wled->cfg.enabled_strings[i] >= wled->max_string_count) {
-- 
GitLab


From bf4daf6153c9dac5e6aaaf9a8b794670412bb91c Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 15 Nov 2021 21:34:54 +0100
Subject: [PATCH 3060/4878] backlight: qcom-wled: Fix off-by-one maximum with
 default num_strings

[ Upstream commit 5ada78b26f935f8751852dffa24f6b545b1d2517 ]

When not specifying num-strings in the DT the default is used, but +1 is
added to it which turns WLED3 into 4 and WLED4/5 into 5 strings instead
of 3 and 4 respectively, causing out-of-bounds reads and register
read/writes.  This +1 exists for a deficiency in the DT parsing code,
and is simply omitted entirely - solving this oob issue - by parsing the
property separately much like qcom,enabled-strings.

This also enables more stringent checks on the maximum value when
qcom,enabled-strings is provided in the DT, by parsing num-strings after
enabled-strings to allow it to check against (and in a subsequent patch
override) the length of enabled-strings: it is invalid to set
num-strings higher than that.
The DT currently utilizes it to get around an incorrect fixed read of
four elements from that array (has been addressed in a prior patch) by
setting a lower num-strings where desired.

Fixes: 93c64f1ea1e8 ("leds: add Qualcomm PM8941 WLED driver")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-By: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115203459.1634079-5-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/qcom-wled.c | 48 ++++++++++-------------------
 1 file changed, 16 insertions(+), 32 deletions(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 92df5a9f6ae51..9e09165984b48 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -1256,21 +1256,6 @@ static const struct wled_var_cfg wled5_ovp_cfg = {
 	.size = 16,
 };
 
-static u32 wled3_num_strings_values_fn(u32 idx)
-{
-	return idx + 1;
-}
-
-static const struct wled_var_cfg wled3_num_strings_cfg = {
-	.fn = wled3_num_strings_values_fn,
-	.size = 3,
-};
-
-static const struct wled_var_cfg wled4_num_strings_cfg = {
-	.fn = wled3_num_strings_values_fn,
-	.size = 4,
-};
-
 static u32 wled3_switch_freq_values_fn(u32 idx)
 {
 	return 19200 / (2 * (1 + idx));
@@ -1344,11 +1329,6 @@ static int wled_configure(struct wled *wled)
 			.val_ptr = &cfg->switch_freq,
 			.cfg = &wled3_switch_freq_cfg,
 		},
-		{
-			.name = "qcom,num-strings",
-			.val_ptr = &cfg->num_strings,
-			.cfg = &wled3_num_strings_cfg,
-		},
 	};
 
 	const struct wled_u32_opts wled4_opts[] = {
@@ -1372,11 +1352,6 @@ static int wled_configure(struct wled *wled)
 			.val_ptr = &cfg->switch_freq,
 			.cfg = &wled3_switch_freq_cfg,
 		},
-		{
-			.name = "qcom,num-strings",
-			.val_ptr = &cfg->num_strings,
-			.cfg = &wled4_num_strings_cfg,
-		},
 	};
 
 	const struct wled_u32_opts wled5_opts[] = {
@@ -1400,11 +1375,6 @@ static int wled_configure(struct wled *wled)
 			.val_ptr = &cfg->switch_freq,
 			.cfg = &wled3_switch_freq_cfg,
 		},
-		{
-			.name = "qcom,num-strings",
-			.val_ptr = &cfg->num_strings,
-			.cfg = &wled4_num_strings_cfg,
-		},
 		{
 			.name = "qcom,modulator-sel",
 			.val_ptr = &cfg->mod_sel,
@@ -1523,8 +1493,6 @@ static int wled_configure(struct wled *wled)
 			*bool_opts[i].val_ptr = true;
 	}
 
-	cfg->num_strings = cfg->num_strings + 1;
-
 	string_len = of_property_count_elems_of_size(dev->of_node,
 						     "qcom,enabled-strings",
 						     sizeof(u32));
@@ -1555,6 +1523,22 @@ static int wled_configure(struct wled *wled)
 		}
 	}
 
+	rc = of_property_read_u32(dev->of_node, "qcom,num-strings", &val);
+	if (!rc) {
+		if (val < 1 || val > wled->max_string_count) {
+			dev_err(dev, "qcom,num-strings must be between 1 and %d\n",
+				wled->max_string_count);
+			return -EINVAL;
+		}
+
+		if (string_len > 0 && val > string_len) {
+			dev_err(dev, "qcom,num-strings exceeds qcom,enabled-strings\n");
+			return -EINVAL;
+		}
+
+		cfg->num_strings = val;
+	}
+
 	return 0;
 }
 
-- 
GitLab


From c79f9b8d8e2622954cc66a3ce0018b74d5fdba9d Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 15 Nov 2021 21:34:55 +0100
Subject: [PATCH 3061/4878] backlight: qcom-wled: Override default length with
 qcom,enabled-strings

[ Upstream commit 2b4b49602f9feca7b7a84eaa33ad9e666c8aa695 ]

The length of qcom,enabled-strings as property array is enough to
determine the number of strings to be enabled, without needing to set
qcom,num-strings to override the default number of strings when less
than the default (which is also the maximum) is provided in DT.

This also introduces an extra warning when qcom,num-strings is set,
denoting that it is not necessary to set both anymore.  It is usually
more concise to set just qcom,num-length when a zero-based, contiguous
range of strings is needed (the majority of the cases), or to only set
qcom,enabled-strings when a specific set of indices is desired.

Fixes: 775d2ffb4af6 ("backlight: qcom-wled: Restructure the driver for WLED3")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115203459.1634079-6-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/qcom-wled.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 9e09165984b48..70fcee74866a5 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -1521,6 +1521,8 @@ static int wled_configure(struct wled *wled)
 				return -EINVAL;
 			}
 		}
+
+		cfg->num_strings = string_len;
 	}
 
 	rc = of_property_read_u32(dev->of_node, "qcom,num-strings", &val);
@@ -1531,9 +1533,13 @@ static int wled_configure(struct wled *wled)
 			return -EINVAL;
 		}
 
-		if (string_len > 0 && val > string_len) {
-			dev_err(dev, "qcom,num-strings exceeds qcom,enabled-strings\n");
-			return -EINVAL;
+		if (string_len > 0) {
+			dev_warn(dev, "Only one of qcom,num-strings or qcom,enabled-strings"
+				      " should be set\n");
+			if (val > string_len) {
+				dev_err(dev, "qcom,num-strings exceeds qcom,enabled-strings\n");
+				return -EINVAL;
+			}
 		}
 
 		cfg->num_strings = val;
-- 
GitLab


From de79bcbfaf4df4861d2ee298e600ad1271b86e20 Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 15 Nov 2021 21:34:53 +0100
Subject: [PATCH 3062/4878] backlight: qcom-wled: Use cpu_to_le16 macro to
 perform conversion

[ Upstream commit 0a139358548968b2ff308257b4fbeec7badcc3e1 ]

The kernel already provides appropriate primitives to perform endianness
conversion which should be used in favour of manual bit-wrangling.

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115203459.1634079-4-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/qcom-wled.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 70fcee74866a5..13368044d0a75 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -231,14 +231,14 @@ struct wled {
 static int wled3_set_brightness(struct wled *wled, u16 brightness)
 {
 	int rc, i;
-	u8 v[2];
+	__le16 v;
 
-	v[0] = brightness & 0xff;
-	v[1] = (brightness >> 8) & 0xf;
+	v = cpu_to_le16(brightness & WLED3_SINK_REG_BRIGHT_MAX);
 
 	for (i = 0;  i < wled->cfg.num_strings; ++i) {
 		rc = regmap_bulk_write(wled->regmap, wled->ctrl_addr +
-				       WLED3_SINK_REG_BRIGHT(i), v, 2);
+				       WLED3_SINK_REG_BRIGHT(i),
+				       &v, sizeof(v));
 		if (rc < 0)
 			return rc;
 	}
@@ -250,18 +250,18 @@ static int wled4_set_brightness(struct wled *wled, u16 brightness)
 {
 	int rc, i;
 	u16 low_limit = wled->max_brightness * 4 / 1000;
-	u8 v[2];
+	__le16 v;
 
 	/* WLED4's lower limit of operation is 0.4% */
 	if (brightness > 0 && brightness < low_limit)
 		brightness = low_limit;
 
-	v[0] = brightness & 0xff;
-	v[1] = (brightness >> 8) & 0xf;
+	v = cpu_to_le16(brightness & WLED3_SINK_REG_BRIGHT_MAX);
 
 	for (i = 0;  i < wled->cfg.num_strings; ++i) {
 		rc = regmap_bulk_write(wled->regmap, wled->sink_addr +
-				       WLED4_SINK_REG_BRIGHT(i), v, 2);
+				       WLED4_SINK_REG_BRIGHT(i),
+				       &v, sizeof(v));
 		if (rc < 0)
 			return rc;
 	}
@@ -273,21 +273,20 @@ static int wled5_set_brightness(struct wled *wled, u16 brightness)
 {
 	int rc, offset;
 	u16 low_limit = wled->max_brightness * 1 / 1000;
-	u8 v[2];
+	__le16 v;
 
 	/* WLED5's lower limit is 0.1% */
 	if (brightness < low_limit)
 		brightness = low_limit;
 
-	v[0] = brightness & 0xff;
-	v[1] = (brightness >> 8) & 0x7f;
+	v = cpu_to_le16(brightness & WLED5_SINK_REG_BRIGHT_MAX_15B);
 
 	offset = (wled->cfg.mod_sel == MOD_A) ?
 		  WLED5_SINK_REG_MOD_A_BRIGHTNESS_LSB :
 		  WLED5_SINK_REG_MOD_B_BRIGHTNESS_LSB;
 
 	rc = regmap_bulk_write(wled->regmap, wled->sink_addr + offset,
-			       v, 2);
+			       &v, sizeof(v));
 	return rc;
 }
 
-- 
GitLab


From f8f3c1720d77ae677b171ac0c006d3a0eef47baf Mon Sep 17 00:00:00 2001
From: Marijn Suijten <marijn.suijten@somainline.org>
Date: Mon, 15 Nov 2021 21:34:59 +0100
Subject: [PATCH 3063/4878] backlight: qcom-wled: Respect enabled-strings in
 set_brightness

[ Upstream commit ec961cf3241153e0f27d850f1bf0f172e7d27a21 ]

The hardware is capable of controlling any non-contiguous sequence of
LEDs specified in the DT using qcom,enabled-strings as u32
array, and this also follows from the DT-bindings documentation.  The
numbers specified in this array represent indices of the LED strings
that are to be enabled and disabled.

Its value is appropriately used to setup and enable string modules, but
completely disregarded in the set_brightness paths which only iterate
over the number of strings linearly.
Take an example where only string 2 is enabled with
qcom,enabled_strings=<2>: this string is appropriately enabled but
subsequent brightness changes would have only touched the zero'th
brightness register because num_strings is 1 here.  This is simply
addressed by looking up the string for this index in the enabled_strings
array just like the other codepaths that iterate over num_strings.

Likewise enabled_strings is now also used in the autodetection path for
consistent behaviour: when a list of strings is specified in DT only
those strings will be probed for autodetection, analogous to how the
number of strings that need to be probed is already bound by
qcom,num-strings.  After all autodetection uses the set_brightness
helpers to set an initial value, which could otherwise end up changing
brightness on a different set of strings.

Fixes: 775d2ffb4af6 ("backlight: qcom-wled: Restructure the driver for WLED3")
Fixes: 03b2b5e86986 ("backlight: qcom-wled: Add support for WLED4 peripheral")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115203459.1634079-10-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/qcom-wled.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index 13368044d0a75..486d35da01507 100644
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -237,7 +237,7 @@ static int wled3_set_brightness(struct wled *wled, u16 brightness)
 
 	for (i = 0;  i < wled->cfg.num_strings; ++i) {
 		rc = regmap_bulk_write(wled->regmap, wled->ctrl_addr +
-				       WLED3_SINK_REG_BRIGHT(i),
+				       WLED3_SINK_REG_BRIGHT(wled->cfg.enabled_strings[i]),
 				       &v, sizeof(v));
 		if (rc < 0)
 			return rc;
@@ -260,7 +260,7 @@ static int wled4_set_brightness(struct wled *wled, u16 brightness)
 
 	for (i = 0;  i < wled->cfg.num_strings; ++i) {
 		rc = regmap_bulk_write(wled->regmap, wled->sink_addr +
-				       WLED4_SINK_REG_BRIGHT(i),
+				       WLED4_SINK_REG_BRIGHT(wled->cfg.enabled_strings[i]),
 				       &v, sizeof(v));
 		if (rc < 0)
 			return rc;
@@ -571,7 +571,7 @@ unlock_mutex:
 
 static void wled_auto_string_detection(struct wled *wled)
 {
-	int rc = 0, i, delay_time_us;
+	int rc = 0, i, j, delay_time_us;
 	u32 sink_config = 0;
 	u8 sink_test = 0, sink_valid = 0, val;
 	bool fault_set;
@@ -618,14 +618,15 @@ static void wled_auto_string_detection(struct wled *wled)
 
 	/* Iterate through the strings one by one */
 	for (i = 0; i < wled->cfg.num_strings; i++) {
-		sink_test = BIT((WLED4_SINK_REG_CURR_SINK_SHFT + i));
+		j = wled->cfg.enabled_strings[i];
+		sink_test = BIT((WLED4_SINK_REG_CURR_SINK_SHFT + j));
 
 		/* Enable feedback control */
 		rc = regmap_write(wled->regmap, wled->ctrl_addr +
-				  WLED3_CTRL_REG_FEEDBACK_CONTROL, i + 1);
+				  WLED3_CTRL_REG_FEEDBACK_CONTROL, j + 1);
 		if (rc < 0) {
 			dev_err(wled->dev, "Failed to enable feedback for SINK %d rc = %d\n",
-				i + 1, rc);
+				j + 1, rc);
 			goto failed_detect;
 		}
 
@@ -634,7 +635,7 @@ static void wled_auto_string_detection(struct wled *wled)
 				  WLED4_SINK_REG_CURR_SINK, sink_test);
 		if (rc < 0) {
 			dev_err(wled->dev, "Failed to configure SINK %d rc=%d\n",
-				i + 1, rc);
+				j + 1, rc);
 			goto failed_detect;
 		}
 
@@ -661,7 +662,7 @@ static void wled_auto_string_detection(struct wled *wled)
 
 		if (fault_set)
 			dev_dbg(wled->dev, "WLED OVP fault detected with SINK %d\n",
-				i + 1);
+				j + 1);
 		else
 			sink_valid |= sink_test;
 
@@ -701,15 +702,16 @@ static void wled_auto_string_detection(struct wled *wled)
 	/* Enable valid sinks */
 	if (wled->version == 4) {
 		for (i = 0; i < wled->cfg.num_strings; i++) {
+			j = wled->cfg.enabled_strings[i];
 			if (sink_config &
-			    BIT(WLED4_SINK_REG_CURR_SINK_SHFT + i))
+			    BIT(WLED4_SINK_REG_CURR_SINK_SHFT + j))
 				val = WLED4_SINK_REG_STR_MOD_MASK;
 			else
 				/* Disable modulator_en for unused sink */
 				val = 0;
 
 			rc = regmap_write(wled->regmap, wled->sink_addr +
-					  WLED4_SINK_REG_STR_MOD_EN(i), val);
+					  WLED4_SINK_REG_STR_MOD_EN(j), val);
 			if (rc < 0) {
 				dev_err(wled->dev, "Failed to configure MODULATOR_EN rc=%d\n",
 					rc);
-- 
GitLab


From 1d4e722b62d2b6ca1ba0a83687230b47c41a16da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <clement.leger@bootlin.com>
Date: Mon, 20 Dec 2021 22:05:33 +0100
Subject: [PATCH 3064/4878] software node: fix wrong node passed to find
 nargs_prop
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c5fc5ba8b6b7bebc05e45036a33405b4c5036c2f ]

nargs_prop refers to a property located in the reference that is found
within the nargs property. Use the correct reference node in call to
property_entry_read_int_array() to retrieve the correct nargs value.

Fixes: b06184acf751 ("software node: Add software_node_get_reference_args()")
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Daniel Scally <djrscally@gmail.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/swnode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 206bd4d7d7e23..d2fb3eb5816c3 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -519,7 +519,7 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode,
 		return -ENOENT;
 
 	if (nargs_prop) {
-		error = property_entry_read_int_array(swnode->node->properties,
+		error = property_entry_read_int_array(ref->node->properties,
 						      nargs_prop, sizeof(u32),
 						      &nargs_prop_val, 1);
 		if (error)
-- 
GitLab


From 70eec71f32eb5a9d1654b01bb142d5fa9a5df7fe Mon Sep 17 00:00:00 2001
From: Panicker Harish <quic_pharish@quicinc.com>
Date: Wed, 22 Dec 2021 12:59:05 +0530
Subject: [PATCH 3065/4878] Bluetooth: hci_qca: Stop IBS timer during BT OFF

[ Upstream commit df1e5c51492fd93ffc293acdcc6f00698d19fedc ]

The IBS timers are not stopped properly once BT OFF is triggered.
we could see IBS commands being sent along with version command,
so stopped IBS timers while Bluetooth is off.

Fixes: 3e4be65eb82c ("Bluetooth: hci_qca: Add poweroff support during hci down for wcn3990")
Signed-off-by: Panicker Harish <quic_pharish@quicinc.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/hci_qca.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 4184faef9f169..4f8a32601c1b6 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1844,6 +1844,9 @@ static int qca_power_off(struct hci_dev *hdev)
 	hu->hdev->hw_error = NULL;
 	hu->hdev->cmd_timeout = NULL;
 
+	del_timer_sync(&qca->wake_retrans_timer);
+	del_timer_sync(&qca->tx_idle_timer);
+
 	/* Stop sending shutdown command if soc crashes. */
 	if (soc_type != QCA_ROME
 		&& qca->memdump_state == QCA_MEMDUMP_IDLE) {
-- 
GitLab


From aea5302d9ddc8c9f637393c63d824f45026e906e Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Wed, 22 Dec 2021 09:30:41 -0700
Subject: [PATCH 3066/4878] x86/boot/compressed: Move CLANG_FLAGS to beginning
 of KBUILD_CFLAGS

[ Upstream commit 5fe392ff9d1f7254a1fbb3f72d9893088e4d23eb ]

When cross compiling i386_defconfig on an arm64 host with clang, there
are a few instances of '-Waddress-of-packed-member' and
'-Wgnu-variable-sized-type-not-at-end' in arch/x86/boot/compressed/,
which should both be disabled with the cc-disable-warning calls in that
directory's Makefile, which indicates that cc-disable-warning is failing
at the point of testing these flags.

The cc-disable-warning calls fail because at the point that the flags
are tested, KBUILD_CFLAGS has '-march=i386' without $(CLANG_FLAGS),
which has the '--target=' flag to tell clang what architecture it is
targeting. Without the '--target=' flag, the host architecture (arm64)
is used and i386 is not a valid value for '-march=' in that case. This
error can be seen by adding some logging to try-run:

  clang-14: error: the clang compiler does not support '-march=i386'

Invoking the compiler has to succeed prior to calling cc-option or
cc-disable-warning in order to accurately test whether or not the flag
is supported; if it doesn't, the requested flag can never be added to
the compiler flags. Move $(CLANG_FLAGS) to the beginning of KBUILD_FLAGS
so that any new flags that might be added in the future can be
accurately tested.

Fixes: d5cbd80e302d ("x86/boot: Add $(CLANG_FLAGS) to compressed KBUILD_CFLAGS")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211222163040.1961481-1-nathan@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/boot/compressed/Makefile | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 6004047d25fdd..bf91e0a36d77f 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -28,7 +28,11 @@ KCOV_INSTRUMENT		:= n
 targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
 	vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 vmlinux.bin.zst
 
-KBUILD_CFLAGS := -m$(BITS) -O2
+# CLANG_FLAGS must come before any cc-disable-warning or cc-option calls in
+# case of cross compiling, as it has the '--target=' flag, which is needed to
+# avoid errors with '-march=i386', and future flags may depend on the target to
+# be valid.
+KBUILD_CFLAGS := -m$(BITS) -O2 $(CLANG_FLAGS)
 KBUILD_CFLAGS += -fno-strict-aliasing -fPIE
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 cflags-$(CONFIG_X86_32) := -march=i386
@@ -46,7 +50,6 @@ KBUILD_CFLAGS += -D__DISABLE_EXPORTS
 # Disable relocation relaxation in case the link is not PIE.
 KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mrelax-relocations=no)
 KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h
-KBUILD_CFLAGS += $(CLANG_FLAGS)
 
 # sev-es.c indirectly inludes inat-table.h which is generated during
 # compilation and stored in $(objtree). Add the directory to the includes so
-- 
GitLab


From df126818192814cd8981c42bd15f79d3e312a073 Mon Sep 17 00:00:00 2001
From: Arseny Demidov <arsdemal@gmail.com>
Date: Sun, 19 Dec 2021 13:22:39 +0300
Subject: [PATCH 3067/4878] hwmon: (mr75203) fix wrong power-up delay value

[ Upstream commit a8d6d4992ad9d92356619ac372906bd29687bb46 ]

In the file mr75203.c we have a macro named POWER_DELAY_CYCLE_256,
the correct value should be 0x100. The register ip_tmr is expressed
in units of IP clk cycles, in accordance with the datasheet.
Typical power-up delays for Temperature Sensor are 256 cycles i.e. 0x100.

Fixes: 9d823351a337 ("hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller")
Signed-off-by: Arseny Demidov <a.demidov@yadro.com>
Link: https://lore.kernel.org/r/20211219102239.1112-1-a.demidov@yadro.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/mr75203.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c
index 18da5a25e89ab..046523d47c29b 100644
--- a/drivers/hwmon/mr75203.c
+++ b/drivers/hwmon/mr75203.c
@@ -93,7 +93,7 @@
 #define VM_CH_REQ	BIT(21)
 
 #define IP_TMR			0x05
-#define POWER_DELAY_CYCLE_256	0x80
+#define POWER_DELAY_CYCLE_256	0x100
 #define POWER_DELAY_CYCLE_64	0x40
 
 #define PVT_POLL_DELAY_US	20
-- 
GitLab


From 595e1ec55b307d232f8672ccbe6c84089b277b43 Mon Sep 17 00:00:00 2001
From: Zhang Zixun <zhang133010@icloud.com>
Date: Mon, 27 Dec 2021 22:02:49 +0100
Subject: [PATCH 3068/4878] x86/mce/inject: Avoid out-of-bounds write when
 setting flags

[ Upstream commit de768416b203ac84e02a757b782a32efb388476f ]

A contrived zero-length write, for example, by using write(2):

  ...
  ret = write(fd, str, 0);
  ...

to the "flags" file causes:

  BUG: KASAN: stack-out-of-bounds in flags_write
  Write of size 1 at addr ffff888019be7ddf by task writefile/3787

  CPU: 4 PID: 3787 Comm: writefile Not tainted 5.16.0-rc7+ #12
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014

due to accessing buf one char before its start.

Prevent such out-of-bounds access.

  [ bp: Productize into a proper patch. Link below is the next best
    thing because the original mail didn't get archived on lore. ]

Fixes: 0451d14d0561 ("EDAC, mce_amd_inj: Modify flags attribute to use string arguments")
Signed-off-by: Zhang Zixun <zhang133010@icloud.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/linux-edac/YcnePfF1OOqoQwrX@zn.tnic/
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/inject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/inject.c b/arch/x86/kernel/cpu/mce/inject.c
index 3a44346f22766..e7808309d4710 100644
--- a/arch/x86/kernel/cpu/mce/inject.c
+++ b/arch/x86/kernel/cpu/mce/inject.c
@@ -347,7 +347,7 @@ static ssize_t flags_write(struct file *filp, const char __user *ubuf,
 	char buf[MAX_FLAG_OPT_SIZE], *__buf;
 	int err;
 
-	if (cnt > MAX_FLAG_OPT_SIZE)
+	if (!cnt || cnt > MAX_FLAG_OPT_SIZE)
 		return -EINVAL;
 
 	if (copy_from_user(&buf, ubuf, cnt))
-- 
GitLab


From 0f03132191badb322140110319e71f17265bc719 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 30 Dec 2021 12:57:47 +0100
Subject: [PATCH 3069/4878] ACPI: scan: Create platform device for BCM4752 and
 LNV4752 ACPI nodes

[ Upstream commit f85196bdd5a50da74670250564740fc852b3c239 ]

BCM4752 and LNV4752 ACPI nodes describe a Broadcom 4752 GPS module
attached to an UART of the system.

The GPS modules talk a custom protocol which only works with a closed-
source Android gpsd daemon which knows this protocol.

The ACPI nodes also describe GPIOs to turn the GPS on/off these are
handled by the net/rfkill/rfkill-gpio.c code. This handling predates the
addition of enumeration of ACPI instantiated serdevs to the kernel and
was broken by that addition, because the ACPI scan code now no longer
instantiates platform_device-s for these nodes.

Rename the i2c_multi_instantiate_ids HID list to ignore_serial_bus_ids
and add the BCM4752 and LNV4752 HIDs, so that rfkill-gpio gets
a platform_device to bind to again; and so that a tty cdev for gpsd
gets created for these.

Fixes: e361d1f85855 ("ACPI / scan: Fix enumeration for special UART devices")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/scan.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index de0533bd4e086..67a5ee2fedfd3 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1577,6 +1577,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 {
 	struct list_head resource_list;
 	bool is_serial_bus_slave = false;
+	static const struct acpi_device_id ignore_serial_bus_ids[] = {
 	/*
 	 * These devices have multiple I2cSerialBus resources and an i2c-client
 	 * must be instantiated for each, each with its own i2c_device_id.
@@ -1585,11 +1586,18 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	 * drivers/platform/x86/i2c-multi-instantiate.c driver, which knows
 	 * which i2c_device_id to use for each resource.
 	 */
-	static const struct acpi_device_id i2c_multi_instantiate_ids[] = {
 		{"BSG1160", },
 		{"BSG2150", },
 		{"INT33FE", },
 		{"INT3515", },
+	/*
+	 * HIDs of device with an UartSerialBusV2 resource for which userspace
+	 * expects a regular tty cdev to be created (instead of the in kernel
+	 * serdev) and which have a kernel driver which expects a platform_dev
+	 * such as the rfkill-gpio driver.
+	 */
+		{"BCM4752", },
+		{"LNV4752", },
 		{}
 	};
 
@@ -1603,8 +1611,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	     fwnode_property_present(&device->fwnode, "baud")))
 		return true;
 
-	/* Instantiate a pdev for the i2c-multi-instantiate drv to bind to */
-	if (!acpi_match_device_ids(device, i2c_multi_instantiate_ids))
+	if (!acpi_match_device_ids(device, ignore_serial_bus_ids))
 		return false;
 
 	INIT_LIST_HEAD(&resource_list);
-- 
GitLab


From 2dee347f356dc1040113b22106285d72ebd24a9f Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Wed, 1 Dec 2021 00:59:23 +0800
Subject: [PATCH 3070/4878] pcmcia: rsrc_nonstatic: Fix a NULL pointer
 dereference in __nonstatic_find_io_region()

[ Upstream commit ca0fe0d7c35c97528bdf621fdca75f13157c27af ]

In __nonstatic_find_io_region(), pcmcia_make_resource() is assigned to
res and used in pci_bus_alloc_resource(). There is a dereference of res
in pci_bus_alloc_resource(), which could lead to a NULL pointer
dereference on failure of pcmcia_make_resource().

Fix this bug by adding a check of res.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_PCCARD_NONSTATIC=y show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: 49b1153adfe1 ("pcmcia: move all pcmcia_resource_ops providers into one module")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
[linux@dominikbrodowski.net: Fix typo in commit message]
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pcmcia/rsrc_nonstatic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 3b05760e69d62..4c70e8ffe04ea 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -690,6 +690,9 @@ static struct resource *__nonstatic_find_io_region(struct pcmcia_socket *s,
 	unsigned long min = base;
 	int ret;
 
+	if (!res)
+		return NULL;
+
 	data.mask = align - 1;
 	data.offset = base & data.mask;
 	data.map = &s_data->io_db;
-- 
GitLab


From 4210c35fe81bcce80580cdcf8fde34ba289e95d4 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Wed, 1 Dec 2021 02:11:40 +0800
Subject: [PATCH 3071/4878] pcmcia: rsrc_nonstatic: Fix a NULL pointer
 dereference in nonstatic_find_mem_region()

[ Upstream commit 977d2e7c63c3d04d07ba340b39987742e3241554 ]

In nonstatic_find_mem_region(), pcmcia_make_resource() is assigned to
res and used in pci_bus_alloc_resource(). There a dereference of res
in pci_bus_alloc_resource(), which could lead to a NULL pointer
dereference on failure of pcmcia_make_resource().

Fix this bug by adding a check of res.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_PCCARD_NONSTATIC=y show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: 49b1153adfe1 ("pcmcia: move all pcmcia_resource_ops providers into one module")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pcmcia/rsrc_nonstatic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 4c70e8ffe04ea..69a6e9a5d6d26 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -812,6 +812,9 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num,
 	unsigned long min, max;
 	int ret, i, j;
 
+	if (!res)
+		return NULL;
+
 	low = low || !(s->features & SS_CAP_PAGE_REGS);
 
 	data.mask = align - 1;
-- 
GitLab


From 2e718389b986b2a79ab1f3282b5a5ed35373aa0f Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Mon, 20 Dec 2021 16:38:11 +0800
Subject: [PATCH 3072/4878] power: reset: mt6397: Check for null res pointer

[ Upstream commit 1c1348bf056dee665760a3bd1cd30b0be7554fc2 ]

The return value of platform_get_resource() needs to be checked.
To avoid use of error pointer in case that there is no suitable
resource.

Fixes: d28c74c10751 ("power: reset: add driver for mt6323 poweroff")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/reset/mt6323-poweroff.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/power/reset/mt6323-poweroff.c b/drivers/power/reset/mt6323-poweroff.c
index 0532803e6cbc4..d90e76fcb9383 100644
--- a/drivers/power/reset/mt6323-poweroff.c
+++ b/drivers/power/reset/mt6323-poweroff.c
@@ -57,6 +57,9 @@ static int mt6323_pwrc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+
 	pwrc->base = res->start;
 	pwrc->regmap = mt6397_chip->regmap;
 	pwrc->dev = &pdev->dev;
-- 
GitLab


From 0036c78c492a3175bef6178899a0f438289723e2 Mon Sep 17 00:00:00 2001
From: Xin Xiong <xiongx18@fudan.edu.cn>
Date: Thu, 23 Dec 2021 10:48:12 +0800
Subject: [PATCH 3073/4878] netfilter: ipt_CLUSTERIP: fix refcount leak in
 clusterip_tg_check()

[ Upstream commit d94a69cb2cfa77294921aae9afcfb866e723a2da ]

The issue takes place in one error path of clusterip_tg_check(). When
memcmp() returns nonzero, the function simply returns the error code,
forgetting to decrease the reference count of a clusterip_config
object, which is bumped earlier by clusterip_config_find_get(). This
may incur reference count leak.

Fix this issue by decrementing the refcount of the object in specific
error path.

Fixes: 06aa151ad1fc74 ("netfilter: ipt_CLUSTERIP: check MAC address when duplicate config is set")
Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index a8b980ad11d4e..1088564d4dbcb 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -505,8 +505,11 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
 			if (IS_ERR(config))
 				return PTR_ERR(config);
 		}
-	} else if (memcmp(&config->clustermac, &cipinfo->clustermac, ETH_ALEN))
+	} else if (memcmp(&config->clustermac, &cipinfo->clustermac, ETH_ALEN)) {
+		clusterip_config_entry_put(config);
+		clusterip_config_put(config);
 		return -EINVAL;
+	}
 
 	ret = nf_ct_netns_get(par->net, par->family);
 	if (ret < 0) {
-- 
GitLab


From 342332fb0be64a28fd5f13809b73bd1d620638c5 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Wed, 5 Jan 2022 11:35:13 -0800
Subject: [PATCH 3074/4878] bpf: Don't promote bogus looking registers after
 null check.

[ Upstream commit e60b0d12a95dcf16a63225cead4541567f5cb517 ]

If we ever get to a point again where we convert a bogus looking <ptr>_or_null
typed register containing a non-zero fixed or variable offset, then lets not
reset these bounds to zero since they are not and also don't promote the register
to a <ptr> type, but instead leave it as <ptr>_or_null. Converting to a unknown
register could be an avenue as well, but then if we run into this case it would
allow to leak a kernel pointer this way.

Fixes: f1174f77b50c ("bpf/verifier: rework value tracking")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/verifier.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index c623c3e549210..015bf2ba4a0b6 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7725,15 +7725,15 @@ static void mark_ptr_or_null_reg(struct bpf_func_state *state,
 {
 	if (reg_type_may_be_null(reg->type) && reg->id == id &&
 	    !WARN_ON_ONCE(!reg->id)) {
-		/* Old offset (both fixed and variable parts) should
-		 * have been known-zero, because we don't allow pointer
-		 * arithmetic on pointers that might be NULL.
-		 */
 		if (WARN_ON_ONCE(reg->smin_value || reg->smax_value ||
 				 !tnum_equals_const(reg->var_off, 0) ||
 				 reg->off)) {
-			__mark_reg_known_zero(reg);
-			reg->off = 0;
+			/* Old offset (both fixed and variable parts) should
+			 * have been known-zero, because we don't allow pointer
+			 * arithmetic on pointers that might be NULL. If we
+			 * see this happening, don't convert the register.
+			 */
+			return;
 		}
 		if (is_null) {
 			reg->type = SCALAR_VALUE;
-- 
GitLab


From 8772700a9f1e8c8f33599a8614fe6a4af28193b5 Mon Sep 17 00:00:00 2001
From: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Date: Tue, 4 Jan 2022 10:31:48 +0900
Subject: [PATCH 3075/4878] bpf: Fix SO_RCVBUF/SO_SNDBUF handling in
 _bpf_setsockopt().

[ Upstream commit 04c350b1ae6bdb12b84009a4d0bf5ab4e621c47b ]

The commit 4057765f2dee ("sock: consistent handling of extreme
SO_SNDBUF/SO_RCVBUF values") added a change to prevent underflow
in setsockopt() around SO_SNDBUF/SO_RCVBUF.

This patch adds the same change to _bpf_setsockopt().

Fixes: 4057765f2dee ("sock: consistent handling of extreme SO_SNDBUF/SO_RCVBUF values")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220104013153.97906-2-kuniyu@amazon.co.jp
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/filter.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/core/filter.c b/net/core/filter.c
index abd58dce49bbc..706c31ae65b01 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4711,12 +4711,14 @@ static int _bpf_setsockopt(struct sock *sk, int level, int optname,
 		switch (optname) {
 		case SO_RCVBUF:
 			val = min_t(u32, val, sysctl_rmem_max);
+			val = min_t(int, val, INT_MAX / 2);
 			sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
 			WRITE_ONCE(sk->sk_rcvbuf,
 				   max_t(int, val * 2, SOCK_MIN_RCVBUF));
 			break;
 		case SO_SNDBUF:
 			val = min_t(u32, val, sysctl_wmem_max);
+			val = min_t(int, val, INT_MAX / 2);
 			sk->sk_userlocks |= SOCK_SNDBUF_LOCK;
 			WRITE_ONCE(sk->sk_sndbuf,
 				   max_t(int, val * 2, SOCK_MIN_SNDBUF));
-- 
GitLab


From 45643b1b6ce1ec47f2d4fd696b3d2aae4d6f7dc3 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 5 Jan 2022 14:19:54 +0100
Subject: [PATCH 3076/4878] netfilter: nft_set_pipapo: allocate pcpu scratch
 maps on clone

[ Upstream commit 23c54263efd7cb605e2f7af72717a2a951999217 ]

This is needed in case a new transaction is made that doesn't insert any
new elements into an already existing set.

Else, after second 'nft -f ruleset.txt', lookups in such a set will fail
because ->lookup() encounters raw_cpu_ptr(m->scratch) == NULL.

For the initial rule load, insertion of elements takes care of the
allocation, but for rule reloads this isn't guaranteed: we might not
have additions to the set.

Fixes: 3c4287f62044a90e ("nf_tables: Add set type for arbitrary concatenation of ranges")
Reported-by: etkaar <lists.netfilter.org@prvy.eu>
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_set_pipapo.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/netfilter/nft_set_pipapo.c b/net/netfilter/nft_set_pipapo.c
index 2d73f265b12c9..f67c4436c5d31 100644
--- a/net/netfilter/nft_set_pipapo.c
+++ b/net/netfilter/nft_set_pipapo.c
@@ -1290,6 +1290,11 @@ static struct nft_pipapo_match *pipapo_clone(struct nft_pipapo_match *old)
 	if (!new->scratch_aligned)
 		goto out_scratch;
 #endif
+	for_each_possible_cpu(i)
+		*per_cpu_ptr(new->scratch, i) = NULL;
+
+	if (pipapo_realloc_scratch(new, old->bsize_max))
+		goto out_scratch_realloc;
 
 	rcu_head_init(&new->rcu);
 
@@ -1334,6 +1339,9 @@ out_lt:
 		kvfree(dst->lt);
 		dst--;
 	}
+out_scratch_realloc:
+	for_each_possible_cpu(i)
+		kfree(*per_cpu_ptr(new->scratch, i));
 #ifdef NFT_PIPAPO_ALIGN
 	free_percpu(new->scratch_aligned);
 #endif
-- 
GitLab


From 2db344725e173ad908ec060f95240b6fb679d0d1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 5 Jan 2022 03:48:42 -0800
Subject: [PATCH 3077/4878] ppp: ensure minimum packet size in ppp_write()

[ Upstream commit 44073187990d5629804ce0627525f6ea5cfef171 ]

It seems pretty clear ppp layer assumed user space
would always be kind to provide enough data
in their write() to a ppp device.

This patch makes sure user provides at least
2 bytes.

It adds PPP_PROTO_LEN macro that could replace
in net-next many occurrences of hard-coded 2 value.

I replaced only one occurrence to ease backports
to stable kernels.

The bug manifests in the following report:

BUG: KMSAN: uninit-value in ppp_send_frame+0x28d/0x27c0 drivers/net/ppp/ppp_generic.c:1740
 ppp_send_frame+0x28d/0x27c0 drivers/net/ppp/ppp_generic.c:1740
 __ppp_xmit_process+0x23e/0x4b0 drivers/net/ppp/ppp_generic.c:1640
 ppp_xmit_process+0x1fe/0x480 drivers/net/ppp/ppp_generic.c:1661
 ppp_write+0x5cb/0x5e0 drivers/net/ppp/ppp_generic.c:513
 do_iter_write+0xb0c/0x1500 fs/read_write.c:853
 vfs_writev fs/read_write.c:924 [inline]
 do_writev+0x645/0xe00 fs/read_write.c:967
 __do_sys_writev fs/read_write.c:1040 [inline]
 __se_sys_writev fs/read_write.c:1037 [inline]
 __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1126 [inline]
 ppp_write+0x11d/0x5e0 drivers/net/ppp/ppp_generic.c:501
 do_iter_write+0xb0c/0x1500 fs/read_write.c:853
 vfs_writev fs/read_write.c:924 [inline]
 do_writev+0x645/0xe00 fs/read_write.c:967
 __do_sys_writev fs/read_write.c:1040 [inline]
 __se_sys_writev fs/read_write.c:1037 [inline]
 __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linux-ppp@vger.kernel.org
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ppp/ppp_generic.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 33b2e0fb68bbb..2b9815ec4a622 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -69,6 +69,8 @@
 #define MPHDRLEN	6	/* multilink protocol header length */
 #define MPHDRLEN_SSN	4	/* ditto with short sequence numbers */
 
+#define PPP_PROTO_LEN	2
+
 /*
  * An instance of /dev/ppp can be associated with either a ppp
  * interface unit or a ppp channel.  In both cases, file->private_data
@@ -496,6 +498,9 @@ static ssize_t ppp_write(struct file *file, const char __user *buf,
 
 	if (!pf)
 		return -ENXIO;
+	/* All PPP packets should start with the 2-byte protocol */
+	if (count < PPP_PROTO_LEN)
+		return -EINVAL;
 	ret = -ENOMEM;
 	skb = alloc_skb(count + pf->hdrlen, GFP_KERNEL);
 	if (!skb)
@@ -1632,7 +1637,7 @@ ppp_send_frame(struct ppp *ppp, struct sk_buff *skb)
 	}
 
 	++ppp->stats64.tx_packets;
-	ppp->stats64.tx_bytes += skb->len - 2;
+	ppp->stats64.tx_bytes += skb->len - PPP_PROTO_LEN;
 
 	switch (proto) {
 	case PPP_IP:
-- 
GitLab


From a1068bfee47aaef6fcf58610df6c35c032412baf Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 6 Jan 2022 14:57:54 +0300
Subject: [PATCH 3078/4878] rocker: fix a sleeping in atomic bug

[ Upstream commit 43d012123122cc69feacab55b71369f386c19566 ]

This code is holding the &ofdpa->flow_tbl_lock spinlock so it is not
allowed to sleep.  That means we have to pass the OFDPA_OP_FLAG_NOWAIT
flag to ofdpa_flow_tbl_del().

Fixes: 936bd486564a ("rocker: use FIB notifications instead of switchdev calls")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/rocker/rocker_ofdpa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c
index 7072b249c8bd6..8157666209798 100644
--- a/drivers/net/ethernet/rocker/rocker_ofdpa.c
+++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c
@@ -2795,7 +2795,8 @@ static void ofdpa_fib4_abort(struct rocker *rocker)
 		if (!ofdpa_port)
 			continue;
 		nh->fib_nh_flags &= ~RTNH_F_OFFLOAD;
-		ofdpa_flow_tbl_del(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
+		ofdpa_flow_tbl_del(ofdpa_port,
+				   OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT,
 				   flow_entry);
 	}
 	spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);
-- 
GitLab


From 60aca6fdc167652cc354b288b78adeb1e59f7d08 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 4 Jan 2022 23:06:28 +0800
Subject: [PATCH 3079/4878] staging: greybus: audio: Check null pointer

[ Upstream commit 2e81948177d769106754085c3e03534e6cc1f623 ]

As the possible alloc failure of devm_kcalloc(), it could return null
pointer.
Therefore, 'strings' should be checked and return NULL if alloc fails to
prevent the dereference of the NULL pointer.
Also, the caller should also deal with the return value of the
gb_generate_enum_strings() and return -ENOMEM if returns NULL.
Moreover, because the memory allocated with devm_kzalloc() will be
freed automatically when the last reference to the device is dropped,
the 'gbe' in gbaudio_tplg_create_enum_kctl() and
gbaudio_tplg_create_enum_ctl() do not need to free manually.
But the 'control' in gbaudio_tplg_create_widget() and
gbaudio_tplg_process_kcontrols() has a specially error handle to
cleanup.
So it should be better to cleanup 'control' when fails.

Fixes: e65579e335da ("greybus: audio: topology: Enable enumerated control support")
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220104150628.1987906-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/greybus/audio_topology.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
index 2bb8e7b60e8d5..e1579f356af5c 100644
--- a/drivers/staging/greybus/audio_topology.c
+++ b/drivers/staging/greybus/audio_topology.c
@@ -147,6 +147,9 @@ static const char **gb_generate_enum_strings(struct gbaudio_module_info *gb,
 
 	items = le32_to_cpu(gbenum->items);
 	strings = devm_kcalloc(gb->dev, items, sizeof(char *), GFP_KERNEL);
+	if (!strings)
+		return NULL;
+
 	data = gbenum->names;
 
 	for (i = 0; i < items; i++) {
@@ -655,6 +658,8 @@ static int gbaudio_tplg_create_enum_kctl(struct gbaudio_module_info *gb,
 	/* since count=1, and reg is dummy */
 	gbe->items = le32_to_cpu(gb_enum->items);
 	gbe->texts = gb_generate_enum_strings(gb, gb_enum);
+	if (!gbe->texts)
+		return -ENOMEM;
 
 	/* debug enum info */
 	dev_dbg(gb->dev, "Max:%d, name_length:%d\n", gbe->items,
@@ -862,6 +867,8 @@ static int gbaudio_tplg_create_enum_ctl(struct gbaudio_module_info *gb,
 	/* since count=1, and reg is dummy */
 	gbe->items = le32_to_cpu(gb_enum->items);
 	gbe->texts = gb_generate_enum_strings(gb, gb_enum);
+	if (!gbe->texts)
+		return -ENOMEM;
 
 	/* debug enum info */
 	dev_dbg(gb->dev, "Max:%d, name_length:%d\n", gbe->items,
@@ -1072,6 +1079,10 @@ static int gbaudio_tplg_create_widget(struct gbaudio_module_info *module,
 			csize += le16_to_cpu(gbenum->names_length);
 			control->texts = (const char * const *)
 				gb_generate_enum_strings(module, gbenum);
+			if (!control->texts) {
+				ret = -ENOMEM;
+				goto error;
+			}
 			control->items = le32_to_cpu(gbenum->items);
 		} else {
 			csize = sizeof(struct gb_audio_control);
@@ -1181,6 +1192,10 @@ static int gbaudio_tplg_process_kcontrols(struct gbaudio_module_info *module,
 			csize += le16_to_cpu(gbenum->names_length);
 			control->texts = (const char * const *)
 				gb_generate_enum_strings(module, gbenum);
+			if (!control->texts) {
+				ret = -ENOMEM;
+				goto error;
+			}
 			control->items = le32_to_cpu(gbenum->items);
 		} else {
 			csize = sizeof(struct gb_audio_control);
-- 
GitLab


From f5e4f68d57d64e4739a4485e5f35cf370c41a857 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Thu, 6 Jan 2022 18:04:10 +0800
Subject: [PATCH 3080/4878] fsl/fman: Check for null pointer after calling
 devm_ioremap

[ Upstream commit d5a73ec96cc57cf67e51b12820fc2354e7ca46f8 ]

As the possible failure of the allocation, the devm_ioremap() may return
NULL pointer.
Take tgec_initialization() as an example.
If allocation fails, the params->base_addr will be NULL pointer and will
be assigned to tgec->regs in tgec_config().
Then it will cause the dereference of NULL pointer in set_mac_address(),
which is called by tgec_init().
Therefore, it should be better to add the sanity check after the calling
of the devm_ioremap().

Fixes: 3933961682a3 ("fsl/fman: Add FMan MAC driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/fman/mac.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index 901749a7a318b..6eeccc11b76ef 100644
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -94,14 +94,17 @@ static void mac_exception(void *handle, enum fman_mac_exceptions ex)
 		__func__, ex);
 }
 
-static void set_fman_mac_params(struct mac_device *mac_dev,
-				struct fman_mac_params *params)
+static int set_fman_mac_params(struct mac_device *mac_dev,
+			       struct fman_mac_params *params)
 {
 	struct mac_priv_s *priv = mac_dev->priv;
 
 	params->base_addr = (typeof(params->base_addr))
 		devm_ioremap(priv->dev, mac_dev->res->start,
 			     resource_size(mac_dev->res));
+	if (!params->base_addr)
+		return -ENOMEM;
+
 	memcpy(&params->addr, mac_dev->addr, sizeof(mac_dev->addr));
 	params->max_speed	= priv->max_speed;
 	params->phy_if		= mac_dev->phy_if;
@@ -112,6 +115,8 @@ static void set_fman_mac_params(struct mac_device *mac_dev,
 	params->event_cb	= mac_exception;
 	params->dev_id		= mac_dev;
 	params->internal_phy_node = priv->internal_phy_node;
+
+	return 0;
 }
 
 static int tgec_initialization(struct mac_device *mac_dev)
@@ -123,7 +128,9 @@ static int tgec_initialization(struct mac_device *mac_dev)
 
 	priv = mac_dev->priv;
 
-	set_fman_mac_params(mac_dev, &params);
+	err = set_fman_mac_params(mac_dev, &params);
+	if (err)
+		goto _return;
 
 	mac_dev->fman_mac = tgec_config(&params);
 	if (!mac_dev->fman_mac) {
@@ -169,7 +176,9 @@ static int dtsec_initialization(struct mac_device *mac_dev)
 
 	priv = mac_dev->priv;
 
-	set_fman_mac_params(mac_dev, &params);
+	err = set_fman_mac_params(mac_dev, &params);
+	if (err)
+		goto _return;
 
 	mac_dev->fman_mac = dtsec_config(&params);
 	if (!mac_dev->fman_mac) {
@@ -218,7 +227,9 @@ static int memac_initialization(struct mac_device *mac_dev)
 
 	priv = mac_dev->priv;
 
-	set_fman_mac_params(mac_dev, &params);
+	err = set_fman_mac_params(mac_dev, &params);
+	if (err)
+		goto _return;
 
 	if (priv->max_speed == SPEED_10000)
 		params.phy_if = PHY_INTERFACE_MODE_XGMII;
-- 
GitLab


From f6bf3d66393be7dcbe80205eaa2e414e0af9a9a3 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Fri, 24 Dec 2021 10:53:18 +0800
Subject: [PATCH 3081/4878] Bluetooth: hci_bcm: Check for error irq

[ Upstream commit b38cd3b42fba66cc538edb9cf77e07881f43f8e2 ]

For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().
Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq() effectively
convert that into -EINVAL, even at probe time rather than later on.
So it might be better to check just now.

Fixes: 0395ffc1ee05 ("Bluetooth: hci_bcm: Add PM for BCM devices")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/hci_bcm.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index 8ea5ca8d71d6d..259a643377c24 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -1164,7 +1164,12 @@ static int bcm_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	dev->dev = &pdev->dev;
-	dev->irq = platform_get_irq(pdev, 0);
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		return ret;
+
+	dev->irq = ret;
 
 	/* Initialize routing field to an unused value */
 	dev->pcm_int_params[0] = 0xff;
-- 
GitLab


From 4579954bf4cc0bdfc4a42c88b16fe596f1e7f82d Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 24 Dec 2021 08:02:49 +0000
Subject: [PATCH 3082/4878] Bluetooth: hci_qca: Fix NULL vs IS_ERR_OR_NULL
 check in qca_serdev_probe

[ Upstream commit 6845667146a28c09b5dfc401c1ad112374087944 ]

The function devm_gpiod_get_index() return error pointers on error.
Thus devm_gpiod_get_index_optional() could return NULL and error pointers.
The same as devm_gpiod_get_optional() function. Using IS_ERR_OR_NULL()
check to catch error pointers.

Fixes: 77131dfe ("Bluetooth: hci_qca: Replace devm_gpiod_get() with devm_gpiod_get_optional()")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/hci_qca.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 4f8a32601c1b6..dc7ee5dd2eeca 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1990,7 +1990,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 
 		qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
 					       GPIOD_OUT_LOW);
-		if (!qcadev->bt_en) {
+		if (IS_ERR_OR_NULL(qcadev->bt_en)) {
 			dev_warn(&serdev->dev, "failed to acquire enable gpio\n");
 			power_ctrl_enabled = false;
 		}
-- 
GitLab


From 94177fcecc35e9e9d3aecaa5813556c6b5aed7b6 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Wed, 22 Dec 2021 11:18:23 +0000
Subject: [PATCH 3083/4878] usb: dwc3: qcom: Fix NULL vs IS_ERR checking in
 dwc3_qcom_probe

[ Upstream commit b52fe2dbb3e655eb1483000adfab68a219549e13 ]

Since the acpi_create_platform_device() function may return error
pointers, dwc3_qcom_create_urs_usb_platdev() function may return error
pointers too. Using IS_ERR_OR_NULL() to check the return value to fix this.

Fixes: c25c210f590e ("usb: dwc3: qcom: add URS Host support for sdm845 ACPI boot")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20211222111823.22887-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-qcom.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 2a29e2f681fe6..504f8af4d0f80 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -764,9 +764,12 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
 
 		if (qcom->acpi_pdata->is_urs) {
 			qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev);
-			if (!qcom->urs_usb) {
+			if (IS_ERR_OR_NULL(qcom->urs_usb)) {
 				dev_err(dev, "failed to create URS USB platdev\n");
-				return -ENODEV;
+				if (!qcom->urs_usb)
+					return -ENODEV;
+				else
+					return PTR_ERR(qcom->urs_usb);
 			}
 		}
 	}
-- 
GitLab


From cf5ad827ee696a134b8f2d65162989be8cf7188d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Wed, 5 Jan 2022 18:29:12 +0100
Subject: [PATCH 3084/4878] HID: hid-uclogic-params: Invalid parameter check in
 uclogic_params_init
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f364c571a5c77e96de2d32062ff019d6b8d2e2bc ]

The function performs a check on its input parameters, however, the
hdev parameter is used before the check.

Initialize the stack variables after checking the input parameters to
avoid a possible NULL pointer dereference.

Fixes: 9614219e9310e ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443831 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-uclogic-params.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index dd05bed4ca53a..851ab8e24f9d7 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -832,10 +832,10 @@ int uclogic_params_init(struct uclogic_params *params,
 			struct hid_device *hdev)
 {
 	int rc;
-	struct usb_device *udev = hid_to_usb_dev(hdev);
-	__u8  bNumInterfaces = udev->config->desc.bNumInterfaces;
-	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
-	__u8 bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+	struct usb_device *udev;
+	__u8  bNumInterfaces;
+	struct usb_interface *iface;
+	__u8 bInterfaceNumber;
 	bool found;
 	/* The resulting parameters (noop) */
 	struct uclogic_params p = {0, };
@@ -846,6 +846,11 @@ int uclogic_params_init(struct uclogic_params *params,
 		goto cleanup;
 	}
 
+	udev = hid_to_usb_dev(hdev);
+	bNumInterfaces = udev->config->desc.bNumInterfaces;
+	iface = to_usb_interface(hdev->dev.parent);
+	bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+
 	/*
 	 * Set replacement report descriptor if the original matches the
 	 * specified size. Otherwise keep interface unchanged.
-- 
GitLab


From c47f842e0c3c105073fa5a9edd6ae9c6ca8383ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Wed, 5 Jan 2022 18:29:13 +0100
Subject: [PATCH 3085/4878] HID: hid-uclogic-params: Invalid parameter check in
 uclogic_params_get_str_desc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 0a94131d6920916ccb6a357037c535533af08819 ]

The function performs a check on the hdev input parameters, however, it
is used before the check.

Initialize the udev variable after the sanity check to avoid a
possible NULL pointer dereference.

Fixes: 9614219e9310e ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443827 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-uclogic-params.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index 851ab8e24f9d7..a751c9a49360f 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -65,7 +65,7 @@ static int uclogic_params_get_str_desc(__u8 **pbuf, struct hid_device *hdev,
 					__u8 idx, size_t len)
 {
 	int rc;
-	struct usb_device *udev = hid_to_usb_dev(hdev);
+	struct usb_device *udev;
 	__u8 *buf = NULL;
 
 	/* Check arguments */
@@ -74,6 +74,8 @@ static int uclogic_params_get_str_desc(__u8 **pbuf, struct hid_device *hdev,
 		goto cleanup;
 	}
 
+	udev = hid_to_usb_dev(hdev);
+
 	buf = kmalloc(len, GFP_KERNEL);
 	if (buf == NULL) {
 		rc = -ENOMEM;
-- 
GitLab


From 541c3a044b46574a2cb26a395a0e4115281613d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Wed, 5 Jan 2022 18:29:14 +0100
Subject: [PATCH 3086/4878] HID: hid-uclogic-params: Invalid parameter check in
 uclogic_params_huion_init
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit ff6b548afe4d9d1ff3a0f6ef79e8cbca25d8f905 ]

The function performs a check on its input parameters, however, the
hdev parameter is used before the check.

Initialize the stack variables after checking the input parameters to
avoid a possible NULL pointer dereference.

Fixes: 9614219e9310e ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443804 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-uclogic-params.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index a751c9a49360f..df12178a80da5 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -707,9 +707,9 @@ static int uclogic_params_huion_init(struct uclogic_params *params,
 				     struct hid_device *hdev)
 {
 	int rc;
-	struct usb_device *udev = hid_to_usb_dev(hdev);
-	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
-	__u8 bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+	struct usb_device *udev;
+	struct usb_interface *iface;
+	__u8 bInterfaceNumber;
 	bool found;
 	/* The resulting parameters (noop) */
 	struct uclogic_params p = {0, };
@@ -723,6 +723,10 @@ static int uclogic_params_huion_init(struct uclogic_params *params,
 		goto cleanup;
 	}
 
+	udev = hid_to_usb_dev(hdev);
+	iface = to_usb_interface(hdev->dev.parent);
+	bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+
 	/* If it's not a pen interface */
 	if (bInterfaceNumber != 0) {
 		/* TODO: Consider marking the interface invalid */
-- 
GitLab


From b9b5da3e187edc62f735b86f6223b222c37d46e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Wed, 5 Jan 2022 18:29:15 +0100
Subject: [PATCH 3087/4878] HID: hid-uclogic-params: Invalid parameter check in
 uclogic_params_frame_init_v1_buttonpad
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit aa320fdbbbb482c19100f51461bd0069753ce3d7 ]

The function performs a check on the hdev input parameters, however, it
is used before the check.

Initialize the udev variable after the sanity check to avoid a
possible NULL pointer dereference.

Fixes: 9614219e9310e ("HID: uclogic: Extract tablet parameter discovery into a module")
Addresses-Coverity-ID: 1443763 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-uclogic-params.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
index df12178a80da5..38f9bbad81c17 100644
--- a/drivers/hid/hid-uclogic-params.c
+++ b/drivers/hid/hid-uclogic-params.c
@@ -451,7 +451,7 @@ static int uclogic_params_frame_init_v1_buttonpad(
 {
 	int rc;
 	bool found = false;
-	struct usb_device *usb_dev = hid_to_usb_dev(hdev);
+	struct usb_device *usb_dev;
 	char *str_buf = NULL;
 	const size_t str_len = 16;
 
@@ -461,6 +461,8 @@ static int uclogic_params_frame_init_v1_buttonpad(
 		goto cleanup;
 	}
 
+	usb_dev = hid_to_usb_dev(hdev);
+
 	/*
 	 * Enable generic button mode
 	 */
-- 
GitLab


From b3dda01d1d4705cf2be57c5469a2e6964168f688 Mon Sep 17 00:00:00 2001
From: Michal Suchanek <msuchanek@suse.de>
Date: Tue, 4 Jan 2022 18:05:05 +0100
Subject: [PATCH 3088/4878] debugfs: lockdown: Allow reading debugfs files that
 are not world readable

[ Upstream commit 358fcf5ddbec4e6706405847d6a666f5933a6c25 ]

When the kernel is locked down the kernel allows reading only debugfs
files with mode 444. Mode 400 is also valid but is not allowed.

Make the 444 into a mask.

Fixes: 5496197f9b08 ("debugfs: Restrict debugfs when the kernel is locked down")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Link: https://lore.kernel.org/r/20220104170505.10248-1-msuchanek@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/debugfs/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 3aa5eb9ce498e..96059af28f508 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -147,7 +147,7 @@ static int debugfs_locked_down(struct inode *inode,
 			       struct file *filp,
 			       const struct file_operations *real_fops)
 {
-	if ((inode->i_mode & 07777) == 0444 &&
+	if ((inode->i_mode & 07777 & ~0444) == 0 &&
 	    !(filp->f_mode & FMODE_WRITE) &&
 	    !real_fops->unlocked_ioctl &&
 	    !real_fops->compat_ioctl &&
-- 
GitLab


From cc40fa05c0a6e1c2b7afde82c2676c7294ffca3c Mon Sep 17 00:00:00 2001
From: Aya Levin <ayal@nvidia.com>
Date: Thu, 23 Dec 2021 14:38:28 +0200
Subject: [PATCH 3089/4878] net/mlx5e: Fix page DMA map/unmap attributes

[ Upstream commit 0b7cfa4082fbf550595bc0e40f05614bd83bf0cd ]

Driver initiates DMA sync, hence it may skip CPU sync. Add
DMA_ATTR_SKIP_CPU_SYNC as input attribute both to dma_map_page and
dma_unmap_page to avoid redundant sync with the CPU.
When forcing the device to work with SWIOTLB, the extra sync might cause
data corruption. The driver unmaps the whole page while the hardware
used just a part of the bounce buffer. So syncing overrides the entire
page with bounce buffer that only partially contains real data.

Fixes: bc77b240b3c5 ("net/mlx5e: Add fragmented memory support for RX multi packet WQE")
Fixes: db05815b36cb ("net/mlx5e: Add XSK zero-copy support")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c | 4 ++--
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c       | 7 ++++---
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
index 71e8d66fa1509..6692bc8333f73 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
@@ -11,13 +11,13 @@ static int mlx5e_xsk_map_pool(struct mlx5e_priv *priv,
 {
 	struct device *dev = mlx5_core_dma_dev(priv->mdev);
 
-	return xsk_pool_dma_map(pool, dev, 0);
+	return xsk_pool_dma_map(pool, dev, DMA_ATTR_SKIP_CPU_SYNC);
 }
 
 static void mlx5e_xsk_unmap_pool(struct mlx5e_priv *priv,
 				 struct xsk_buff_pool *pool)
 {
-	return xsk_pool_dma_unmap(pool, 0);
+	return xsk_pool_dma_unmap(pool, DMA_ATTR_SKIP_CPU_SYNC);
 }
 
 static int mlx5e_xsk_get_pools(struct mlx5e_xsk *xsk)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 117a593414537..d384403d73f69 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -276,8 +276,8 @@ static inline int mlx5e_page_alloc_pool(struct mlx5e_rq *rq,
 	if (unlikely(!dma_info->page))
 		return -ENOMEM;
 
-	dma_info->addr = dma_map_page(rq->pdev, dma_info->page, 0,
-				      PAGE_SIZE, rq->buff.map_dir);
+	dma_info->addr = dma_map_page_attrs(rq->pdev, dma_info->page, 0, PAGE_SIZE,
+					    rq->buff.map_dir, DMA_ATTR_SKIP_CPU_SYNC);
 	if (unlikely(dma_mapping_error(rq->pdev, dma_info->addr))) {
 		page_pool_recycle_direct(rq->page_pool, dma_info->page);
 		dma_info->page = NULL;
@@ -298,7 +298,8 @@ static inline int mlx5e_page_alloc(struct mlx5e_rq *rq,
 
 void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct mlx5e_dma_info *dma_info)
 {
-	dma_unmap_page(rq->pdev, dma_info->addr, PAGE_SIZE, rq->buff.map_dir);
+	dma_unmap_page_attrs(rq->pdev, dma_info->addr, PAGE_SIZE, rq->buff.map_dir,
+			     DMA_ATTR_SKIP_CPU_SYNC);
 }
 
 void mlx5e_page_release_dynamic(struct mlx5e_rq *rq,
-- 
GitLab


From 67e1a449a165cb395fb4f67f2b2de6a11ab30912 Mon Sep 17 00:00:00 2001
From: Maor Dickman <maord@nvidia.com>
Date: Thu, 30 Dec 2021 11:20:10 +0200
Subject: [PATCH 3090/4878] net/mlx5e: Don't block routes with nexthop objects
 in SW

[ Upstream commit 9e72a55a3c9d54b38a704bb7292d984574a81d9d ]

Routes with nexthop objects is currently not supported by multipath offload
and any attempts to use it is blocked, however this also block adding SW
routes with nexthop.

Resolve this by returning NOTIFY_DONE instead of an error which will allow such
a route to be created in SW but not offloaded.

This fix also solve an issue which block adding such routes on different devices
due to missing check if the route FIB device is one of multipath devices.

Fixes: 6a87afc072c3 ("mlx5: Fail attempts to use routes with nexthop objects")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
index 15c3a9058e728..0f0d250bbc150 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
@@ -265,10 +265,8 @@ static int mlx5_lag_fib_event(struct notifier_block *nb,
 		fen_info = container_of(info, struct fib_entry_notifier_info,
 					info);
 		fi = fen_info->fi;
-		if (fi->nh) {
-			NL_SET_ERR_MSG_MOD(info->extack, "IPv4 route with nexthop objects is not supported");
-			return notifier_from_errno(-EINVAL);
-		}
+		if (fi->nh)
+			return NOTIFY_DONE;
 		fib_dev = fib_info_nh(fen_info->fi, 0)->fib_nh_dev;
 		if (fib_dev != ldev->pf[MLX5_LAG_P1].netdev &&
 		    fib_dev != ldev->pf[MLX5_LAG_P2].netdev) {
-- 
GitLab


From d2b9ce705d793c2ce942a42ee8b7483d799080e3 Mon Sep 17 00:00:00 2001
From: Aya Levin <ayal@nvidia.com>
Date: Sun, 24 Oct 2021 11:47:41 +0300
Subject: [PATCH 3091/4878] Revert "net/mlx5e: Block offload of outer header
 csum for UDP tunnels"

[ Upstream commit 64050cdad0983ad8060e33c3f4b5aee2366bcebd ]

This reverts commit 6d6727dddc7f93fcc155cb8d0c49c29ae0e71122.

Although the NIC doesn't support offload of outer header CSUM, using
gso_partial_features allows offloading the tunnel's segmentation. The
driver relies on the stack CSUM calculation of the outer header. For
this, NETIF_F_GSO_UDP_TUNNEL_CSUM must be a member of the device's
features.

Fixes: 6d6727dddc7f ("net/mlx5e: Block offload of outer header csum for UDP tunnels")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 2f6c3a5813ed1..16e98ac47624c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -5024,9 +5024,13 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 	}
 
 	if (mlx5_vxlan_allowed(mdev->vxlan) || mlx5_geneve_tx_allowed(mdev)) {
-		netdev->hw_features     |= NETIF_F_GSO_UDP_TUNNEL;
-		netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
-		netdev->vlan_features |= NETIF_F_GSO_UDP_TUNNEL;
+		netdev->hw_features     |= NETIF_F_GSO_UDP_TUNNEL |
+					   NETIF_F_GSO_UDP_TUNNEL_CSUM;
+		netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL |
+					   NETIF_F_GSO_UDP_TUNNEL_CSUM;
+		netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
+		netdev->vlan_features |= NETIF_F_GSO_UDP_TUNNEL |
+					 NETIF_F_GSO_UDP_TUNNEL_CSUM;
 	}
 
 	if (mlx5e_tunnel_proto_supported(mdev, IPPROTO_GRE)) {
-- 
GitLab


From e801f81cee3c8901f52ee48c6329802b28fbb49c Mon Sep 17 00:00:00 2001
From: Moshe Shemesh <moshe@nvidia.com>
Date: Sun, 5 Dec 2021 12:07:49 +0200
Subject: [PATCH 3092/4878] net/mlx5: Set command entry semaphore up once got
 index free

[ Upstream commit 8e715cd613a1e872b9d918e912d90b399785761a ]

Avoid a race where command work handler may fail to allocate command
entry index, by holding the command semaphore down till command entry
index is being freed.

Fixes: 410bd754cd73 ("net/mlx5: Add retry mechanism to the command entry index allocation")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 2e55e00888715..20e3f8cd074a1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -147,8 +147,12 @@ static void cmd_ent_put(struct mlx5_cmd_work_ent *ent)
 	if (!refcount_dec_and_test(&ent->refcnt))
 		return;
 
-	if (ent->idx >= 0)
-		cmd_free_index(ent->cmd, ent->idx);
+	if (ent->idx >= 0) {
+		struct mlx5_cmd *cmd = ent->cmd;
+
+		cmd_free_index(cmd, ent->idx);
+		up(ent->page_queue ? &cmd->pages_sem : &cmd->sem);
+	}
 
 	cmd_free_ent(ent);
 }
@@ -1582,8 +1586,6 @@ static void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool force
 	vector = vec & 0xffffffff;
 	for (i = 0; i < (1 << cmd->log_sz); i++) {
 		if (test_bit(i, &vector)) {
-			struct semaphore *sem;
-
 			ent = cmd->ent_arr[i];
 
 			/* if we already completed the command, ignore it */
@@ -1606,10 +1608,6 @@ static void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool force
 			    dev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR)
 				cmd_ent_put(ent);
 
-			if (ent->page_queue)
-				sem = &cmd->pages_sem;
-			else
-				sem = &cmd->sem;
 			ent->ts2 = ktime_get_ns();
 			memcpy(ent->out->first.data, ent->lay->out, sizeof(ent->lay->out));
 			dump_command(dev, ent, 0);
@@ -1663,7 +1661,6 @@ static void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool force
 				 */
 				complete(&ent->done);
 			}
-			up(sem);
 		}
 	}
 }
-- 
GitLab


From 9defd7d4c084091f8186361574fe6415cb13bbed Mon Sep 17 00:00:00 2001
From: Zizhuang Deng <sunsetdzz@gmail.com>
Date: Thu, 30 Dec 2021 15:03:31 +0800
Subject: [PATCH 3093/4878] lib/mpi: Add the return value check of kcalloc()

[ Upstream commit dd827abe296fe4249b2f8c9b95f72f814ea8348c ]

Add the return value check of kcalloc() to avoid potential
NULL ptr dereference.

Fixes: a8ea8bdd9df9 ("lib/mpi: Extend the MPI library")
Signed-off-by: Zizhuang Deng <sunsetdzz@gmail.com>
Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/mpi/mpi-mod.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/mpi/mpi-mod.c b/lib/mpi/mpi-mod.c
index 47bc59edd4ff9..54fcc01564d9d 100644
--- a/lib/mpi/mpi-mod.c
+++ b/lib/mpi/mpi-mod.c
@@ -40,6 +40,8 @@ mpi_barrett_t mpi_barrett_init(MPI m, int copy)
 
 	mpi_normalize(m);
 	ctx = kcalloc(1, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return NULL;
 
 	if (copy) {
 		ctx->m = mpi_copy(m);
-- 
GitLab


From 9d6350cf8e5aa6acf1a7c72f7a9ca000e5fa447d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 7 Jan 2022 10:16:44 +0300
Subject: [PATCH 3094/4878] Bluetooth: L2CAP: uninitialized variables in
 l2cap_sock_setsockopt()

[ Upstream commit 2b70d4f9b20635ac328836e50d183632e1930f94 ]

The "opt" variable is a u32, but on some paths only the top bytes
were initialized and the others contained random stack data.

Fixes: a7b75c5a8c41 ("net: pass a sockptr_t into ->setsockopt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/l2cap_sock.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 251017c69ab7f..d2c6785205992 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -903,6 +903,8 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 	struct l2cap_conn *conn;
 	int len, err = 0;
 	u32 opt;
+	u16 mtu;
+	u8 mode;
 
 	BT_DBG("sk %p", sk);
 
@@ -1085,16 +1087,16 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u16))) {
+		if (copy_from_sockptr(&mtu, optval, sizeof(u16))) {
 			err = -EFAULT;
 			break;
 		}
 
 		if (chan->mode == L2CAP_MODE_EXT_FLOWCTL &&
 		    sk->sk_state == BT_CONNECTED)
-			err = l2cap_chan_reconfigure(chan, opt);
+			err = l2cap_chan_reconfigure(chan, mtu);
 		else
-			chan->imtu = opt;
+			chan->imtu = mtu;
 
 		break;
 
@@ -1116,14 +1118,14 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (copy_from_sockptr(&opt, optval, sizeof(u8))) {
+		if (copy_from_sockptr(&mode, optval, sizeof(u8))) {
 			err = -EFAULT;
 			break;
 		}
 
-		BT_DBG("opt %u", opt);
+		BT_DBG("mode %u", mode);
 
-		err = l2cap_set_mode(chan, opt);
+		err = l2cap_set_mode(chan, mode);
 		if (err)
 			break;
 
-- 
GitLab


From 27e9910c4516c829a12286be3501e0e80d8028ee Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 7 Jan 2022 07:54:24 +0000
Subject: [PATCH 3095/4878] spi: spi-meson-spifc: Add missing
 pm_runtime_disable() in meson_spifc_probe

[ Upstream commit 69c1b87516e327a60b39f96b778fe683259408bf ]

If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().
Add missing pm_runtime_disable() for meson_spifc_probe.

Fixes: c3e4bc5434d2 ("spi: meson: Add support for Amlogic Meson SPIFC")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220107075424.7774-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-meson-spifc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-meson-spifc.c b/drivers/spi/spi-meson-spifc.c
index 8eca6f24cb799..c8ed7815c4ba6 100644
--- a/drivers/spi/spi-meson-spifc.c
+++ b/drivers/spi/spi-meson-spifc.c
@@ -349,6 +349,7 @@ static int meson_spifc_probe(struct platform_device *pdev)
 	return 0;
 out_clk:
 	clk_disable_unprepare(spifc->clk);
+	pm_runtime_disable(spifc->dev);
 out_err:
 	spi_master_put(master);
 	return ret;
-- 
GitLab


From 0d04479857bc36de267a183d4889dd713cef18dd Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 7 Jan 2022 10:13:12 +0300
Subject: [PATCH 3096/4878] ax25: uninitialized variable in ax25_setsockopt()

[ Upstream commit 9371937092d5fd502032c1bb4475b36b39b1f1b3 ]

The "opt" variable is unsigned long but we only copy 4 bytes from
the user so the lower 4 bytes are uninitialized.

I have changed the integer overflow checks from ULONG to UINT as well.
This is a slight API change but I don't expect it to break anything.

Fixes: a7b75c5a8c41 ("net: pass a sockptr_t into ->setsockopt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ax25/af_ax25.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 22278807b3f36..5e84dce5ff7ae 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -536,7 +536,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 	ax25_cb *ax25;
 	struct net_device *dev;
 	char devname[IFNAMSIZ];
-	unsigned long opt;
+	unsigned int opt;
 	int res = 0;
 
 	if (level != SOL_AX25)
@@ -568,7 +568,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case AX25_T1:
-		if (opt < 1 || opt > ULONG_MAX / HZ) {
+		if (opt < 1 || opt > UINT_MAX / HZ) {
 			res = -EINVAL;
 			break;
 		}
@@ -577,7 +577,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case AX25_T2:
-		if (opt < 1 || opt > ULONG_MAX / HZ) {
+		if (opt < 1 || opt > UINT_MAX / HZ) {
 			res = -EINVAL;
 			break;
 		}
@@ -593,7 +593,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case AX25_T3:
-		if (opt < 1 || opt > ULONG_MAX / HZ) {
+		if (opt < 1 || opt > UINT_MAX / HZ) {
 			res = -EINVAL;
 			break;
 		}
@@ -601,7 +601,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case AX25_IDLE:
-		if (opt > ULONG_MAX / (60 * HZ)) {
+		if (opt > UINT_MAX / (60 * HZ)) {
 			res = -EINVAL;
 			break;
 		}
-- 
GitLab


From 838acddcdf75574d1bd0409ecbe4b69c498328eb Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 7 Jan 2022 10:12:10 +0300
Subject: [PATCH 3097/4878] netrom: fix api breakage in nr_setsockopt()

[ Upstream commit dc35616e6c2907b0c0c391a205802d8880f7fd85 ]

This needs to copy an unsigned int from user space instead of a long to
avoid breaking user space with an API change.

I have updated all the integer overflow checks from ULONG to UINT as
well.  This is a slight API change but I do not expect it to affect
anything in real life.

Fixes: 3087a6f36ee0 ("netrom: fix copying in user data in nr_setsockopt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netrom/af_netrom.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index eef0e3f2f25b0..e5c8a295e6406 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -298,7 +298,7 @@ static int nr_setsockopt(struct socket *sock, int level, int optname,
 {
 	struct sock *sk = sock->sk;
 	struct nr_sock *nr = nr_sk(sk);
-	unsigned long opt;
+	unsigned int opt;
 
 	if (level != SOL_NETROM)
 		return -ENOPROTOOPT;
@@ -306,18 +306,18 @@ static int nr_setsockopt(struct socket *sock, int level, int optname,
 	if (optlen < sizeof(unsigned int))
 		return -EINVAL;
 
-	if (copy_from_sockptr(&opt, optval, sizeof(unsigned long)))
+	if (copy_from_sockptr(&opt, optval, sizeof(opt)))
 		return -EFAULT;
 
 	switch (optname) {
 	case NETROM_T1:
-		if (opt < 1 || opt > ULONG_MAX / HZ)
+		if (opt < 1 || opt > UINT_MAX / HZ)
 			return -EINVAL;
 		nr->t1 = opt * HZ;
 		return 0;
 
 	case NETROM_T2:
-		if (opt < 1 || opt > ULONG_MAX / HZ)
+		if (opt < 1 || opt > UINT_MAX / HZ)
 			return -EINVAL;
 		nr->t2 = opt * HZ;
 		return 0;
@@ -329,13 +329,13 @@ static int nr_setsockopt(struct socket *sock, int level, int optname,
 		return 0;
 
 	case NETROM_T4:
-		if (opt < 1 || opt > ULONG_MAX / HZ)
+		if (opt < 1 || opt > UINT_MAX / HZ)
 			return -EINVAL;
 		nr->t4 = opt * HZ;
 		return 0;
 
 	case NETROM_IDLE:
-		if (opt > ULONG_MAX / (60 * HZ))
+		if (opt > UINT_MAX / (60 * HZ))
 			return -EINVAL;
 		nr->idle = opt * 60 * HZ;
 		return 0;
-- 
GitLab


From d71fca5d0167f250a351f2fe9f9f0659aaa41a69 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@denx.de>
Date: Fri, 7 Jan 2022 13:33:07 -0300
Subject: [PATCH 3098/4878] regmap: Call regmap_debugfs_exit() prior to _init()

[ Upstream commit 530792efa6cb86f5612ff093333fec735793b582 ]

Since commit cffa4b2122f5 ("regmap: debugfs: Fix a memory leak when
calling regmap_attach_dev"), the following debugfs error is seen
on i.MX boards:

debugfs: Directory 'dummy-iomuxc-gpr@20e0000' with parent 'regmap' already present!

In the attempt to fix the memory leak, the above commit added a NULL check
for map->debugfs_name. For the first debufs entry, map->debugfs_name is NULL
and then the new name is allocated via kasprintf().

For the second debugfs entry, map->debugfs_name() is no longer NULL, so
it will keep using the old entry name and the duplicate name error is seen.

Quoting Mark Brown:

"That means that if the device gets freed we'll end up with the old debugfs
file hanging around pointing at nothing.
...
To be more explicit this means we need a call to regmap_debugfs_exit()
which will clean up all the existing debugfs stuff before we loose
references to it."

Call regmap_debugfs_exit() prior to regmap_debugfs_init() to fix
the problem.

Tested on i.MX6Q and i.MX6SX boards.

Fixes: cffa4b2122f5 ("regmap: debugfs: Fix a memory leak when calling regmap_attach_dev")
Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20220107163307.335404-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/regmap/regmap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 456a1787e18d0..55a30afc14a00 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -620,6 +620,7 @@ int regmap_attach_dev(struct device *dev, struct regmap *map,
 	if (ret)
 		return ret;
 
+	regmap_debugfs_exit(map);
 	regmap_debugfs_init(map);
 
 	/* Add a devres resource for dev_get_regmap() */
-- 
GitLab


From 20edf903a3a570a4406d1d30a554cbf05e6c379f Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Tue, 19 Oct 2021 17:05:25 +0200
Subject: [PATCH 3099/4878] can: mcp251xfd: add missing newline to printed
 strings

[ Upstream commit 3bd9d8ce6f8c5c43ee2f1106021db0f98882cc75 ]

This patch adds the missing newline to printed strings.

Fixes: 55e5b97f003e ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Link: https://lore.kernel.org/all/20220105154300.1258636-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
index 4e13f6dfb91a2..e0b322ab03628 100644
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
@@ -2497,7 +2497,7 @@ static int mcp251xfd_register_chip_detect(struct mcp251xfd_priv *priv)
 	if (!mcp251xfd_is_251X(priv) &&
 	    priv->devtype_data.model != devtype_data->model) {
 		netdev_info(ndev,
-			    "Detected %s, but firmware specifies a %s. Fixing up.",
+			    "Detected %s, but firmware specifies a %s. Fixing up.\n",
 			    __mcp251xfd_get_model_str(devtype_data->model),
 			    mcp251xfd_get_model_str(priv));
 	}
@@ -2534,7 +2534,7 @@ static int mcp251xfd_register_check_rx_int(struct mcp251xfd_priv *priv)
 		return 0;
 
 	netdev_info(priv->ndev,
-		    "RX_INT active after softreset, disabling RX_INT support.");
+		    "RX_INT active after softreset, disabling RX_INT support.\n");
 	devm_gpiod_put(&priv->spi->dev, priv->rx_int);
 	priv->rx_int = NULL;
 
-- 
GitLab


From fb46223c9f940c7b27f6df455e3f4bc9dd11c772 Mon Sep 17 00:00:00 2001
From: Chen Jun <chenjun102@huawei.com>
Date: Wed, 13 Oct 2021 06:25:56 +0000
Subject: [PATCH 3100/4878] tpm: add request_locality before write
 TPM_INT_ENABLE

[ Upstream commit 0ef333f5ba7f24f5d8478425c163d3097f1c7afd ]

Locality is not appropriately requested before writing the int mask.
Add the missing boilerplate.

Fixes: e6aef069b6e9 ("tpm_tis: convert to using locality callbacks")
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/tpm/tpm_tis_core.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index b2659a4c40168..e2df1098a812f 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -994,7 +994,15 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	intmask |= TPM_INTF_CMD_READY_INT | TPM_INTF_LOCALITY_CHANGE_INT |
 		   TPM_INTF_DATA_AVAIL_INT | TPM_INTF_STS_VALID_INT;
 	intmask &= ~TPM_GLOBAL_INT_ENABLE;
+
+	rc = request_locality(chip, 0);
+	if (rc < 0) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
 	tpm_tis_write32(priv, TPM_INT_ENABLE(priv->locality), intmask);
+	release_locality(chip, 0);
 
 	rc = tpm_chip_start(chip);
 	if (rc)
-- 
GitLab


From b9ac866c23bb898c4650c19afe82aa51d6ea794f Mon Sep 17 00:00:00 2001
From: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Date: Sat, 6 Nov 2021 17:42:04 +0100
Subject: [PATCH 3101/4878] tpm_tis: Fix an error handling path in
 'tpm_tis_core_init()'

[ Upstream commit e96d52822f5ac0a25de78f95cd23421bcbc93584 ]

Commit 79ca6f74dae0 ("tpm: fix Atmel TPM crash caused by too frequent
queries") has moved some code around without updating the error handling
path.

This is now pointless to 'goto out_err' when neither 'clk_enable()' nor
'ioremap()' have been called yet.

Make a direct return instead to avoid undoing things that have not been
done.

Fixes: 79ca6f74dae0 ("tpm: fix Atmel TPM crash caused by too frequent queries")
Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/tpm/tpm_tis_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index e2df1098a812f..36d1ad8f479d7 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -952,7 +952,7 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 
 	rc = tpm_tis_read32(priv, TPM_DID_VID(0), &vendor);
 	if (rc < 0)
-		goto out_err;
+		return rc;
 
 	priv->manufacturer_id = vendor;
 
-- 
GitLab


From b6dd1577bc929f78e6bcb44079d6b0cb52bb3baa Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Sat, 8 Jan 2022 21:57:51 +0100
Subject: [PATCH 3102/4878] can: softing: softing_startstop(): fix set but not
 used variable warning

[ Upstream commit 370d988cc529598ebaec6487d4f84c2115dc696b ]

In the function softing_startstop() the variable error_reporting is
assigned but not used. The code that uses this variable is commented
out. Its stated that the functionality is not finally verified.

To fix the warning:

| drivers/net/can/softing/softing_fw.c:424:9: error: variable 'error_reporting' set but not used [-Werror,-Wunused-but-set-variable]

remove the comment, activate the code, but add a "0 &&" to the if
expression and rely on the optimizer rather than the preprocessor to
remove the code.

Link: https://lore.kernel.org/all/20220109103126.1872833-1-mkl@pengutronix.de
Fixes: 03fd3cf5a179 ("can: add driver for Softing card")
Cc: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/softing/softing_fw.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c
index ccd649a8e37bd..bad69a4abec10 100644
--- a/drivers/net/can/softing/softing_fw.c
+++ b/drivers/net/can/softing/softing_fw.c
@@ -565,18 +565,19 @@ int softing_startstop(struct net_device *dev, int up)
 		if (ret < 0)
 			goto failed;
 	}
-	/* enable_error_frame */
-	/*
+
+	/* enable_error_frame
+	 *
 	 * Error reporting is switched off at the moment since
 	 * the receiving of them is not yet 100% verified
 	 * This should be enabled sooner or later
-	 *
-	if (error_reporting) {
+	 */
+	if (0 && error_reporting) {
 		ret = softing_fct_cmd(card, 51, "enable_error_frame");
 		if (ret < 0)
 			goto failed;
 	}
-	*/
+
 	/* initialize interface */
 	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 2]);
 	iowrite16(1, &card->dpram[DPRAM_FCT_PARAM + 4]);
-- 
GitLab


From 5064bfe046b0a604649501cc13ce74512a4ad541 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Fri, 24 Dec 2021 10:13:24 +0800
Subject: [PATCH 3103/4878] can: xilinx_can: xcan_probe(): check for error irq

[ Upstream commit c6564c13dae25cd7f8e1de5127b4da4500ee5844 ]

For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().

Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq()
effectively convert that into -EINVAL, even at probe time rather than
later on. So it might be better to check just now.

Fixes: b1201e44f50b ("can: xilinx CAN controller support")
Link: https://lore.kernel.org/all/20211224021324.1447494-1-jiasheng@iscas.ac.cn
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/xilinx_can.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index 48d746e18f302..375998263af7a 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -1762,7 +1762,12 @@ static int xcan_probe(struct platform_device *pdev)
 	spin_lock_init(&priv->tx_lock);
 
 	/* Get IRQ for the device */
-	ndev->irq = platform_get_irq(pdev, 0);
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		goto err_free;
+
+	ndev->irq = ret;
+
 	ndev->flags |= IFF_ECHO;	/* We support local echo */
 
 	platform_set_drvdata(pdev, ndev);
-- 
GitLab


From 04ce9e2aeda7d6d09c4185592afe229b9e8e600e Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Sun, 9 Jan 2022 10:02:51 +0100
Subject: [PATCH 3104/4878] pcmcia: fix setting of kthread task states

[ Upstream commit fbb3485f1f931102d8ba606f1c28123f5b48afa3 ]

We need to set TASK_INTERRUPTIBLE before calling kthread_should_stop().
Otherwise, kthread_stop() might see that the pccardd thread is still
in TASK_RUNNING state and fail to wake it up.

Additionally, we only need to set the state back to TASK_RUNNING if
kthread_should_stop() breaks the loop.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Fixes: d3046ba809ce ("pcmcia: fix a boot time warning in pcmcia cs code")
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pcmcia/cs.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index e211e2619680c..f70197154a362 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -666,18 +666,16 @@ static int pccardd(void *__skt)
 		if (events || sysfs_events)
 			continue;
 
+		set_current_state(TASK_INTERRUPTIBLE);
 		if (kthread_should_stop())
 			break;
 
-		set_current_state(TASK_INTERRUPTIBLE);
-
 		schedule();
 
-		/* make sure we are running */
-		__set_current_state(TASK_RUNNING);
-
 		try_to_freeze();
 	}
+	/* make sure we are running before we exit */
+	__set_current_state(TASK_RUNNING);
 
 	/* shut down socket, if a device is still present */
 	if (skt->state & SOCKET_PRESENT) {
-- 
GitLab


From 2b948524ae650d58a158d46c52cb99a04100c9db Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Mon, 27 Dec 2021 12:17:57 -0700
Subject: [PATCH 3105/4878] iwlwifi: mvm: Use div_s64 instead of do_div in
 iwl_mvm_ftm_rtt_smoothing()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 4ccdcc8ffd955490feec05380223db6a48961eb5 ]

When building ARCH=arm allmodconfig:

drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c: In function ‘iwl_mvm_ftm_rtt_smoothing’:
./include/asm-generic/div64.h:222:35: error: comparison of distinct pointer types lacks a cast [-Werror]
  222 |         (void)(((typeof((n)) *)0) == ((uint64_t *)0));  \
      |                                   ^~
drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c:1070:9: note: in expansion of macro ‘do_div’
 1070 |         do_div(rtt_avg, 100);
      |         ^~~~~~

do_div() has to be used with an unsigned 64-bit integer dividend but
rtt_avg is a signed 64-bit integer.

div_s64() expects a signed 64-bit integer dividend and signed 32-bit
divisor, which fits this scenario, so use that function here to fix the
warning.

Fixes: 8b0f92549f2c ("iwlwifi: mvm: fix 32-bit build in FTM")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211227191757.2354329-1-nathan@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
index fe3d52620a897..b1335fe3b01a2 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
@@ -967,8 +967,7 @@ static void iwl_mvm_ftm_rtt_smoothing(struct iwl_mvm *mvm,
 	overshoot = IWL_MVM_FTM_INITIATOR_SMOOTH_OVERSHOOT;
 	alpha = IWL_MVM_FTM_INITIATOR_SMOOTH_ALPHA;
 
-	rtt_avg = alpha * rtt + (100 - alpha) * resp->rtt_avg;
-	do_div(rtt_avg, 100);
+	rtt_avg = div_s64(alpha * rtt + (100 - alpha) * resp->rtt_avg, 100);
 
 	IWL_DEBUG_INFO(mvm,
 		       "%pM: prev rtt_avg=%lld, new rtt_avg=%lld, rtt=%lld\n",
-- 
GitLab


From 99590e820feba4525bd5dc02bab9cd085d0627aa Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Fri, 7 Jan 2022 01:57:16 +0300
Subject: [PATCH 3106/4878] net: mcs7830: handle usb read errors properly

[ Upstream commit d668769eb9c52b150753f1653f7f5a0aeb8239d2 ]

Syzbot reported uninit value in mcs7830_bind(). The problem was in
missing validation check for bytes read via usbnet_read_cmd().

usbnet_read_cmd() internally calls usb_control_msg(), that returns
number of bytes read. Code should validate that requested number of bytes
was actually read.

So, this patch adds missing size validation check inside
mcs7830_get_reg() to prevent uninit value bugs

Reported-and-tested-by: syzbot+003c0a286b9af5412510@syzkaller.appspotmail.com
Fixes: 2a36d7083438 ("USB: driver for mcs7830 (aka DeLOCK) USB ethernet adapter")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20220106225716.7425-1-paskripkin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/mcs7830.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 09bfa6a4dfbc1..7e40e2e2f3723 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -108,8 +108,16 @@ static const char driver_name[] = "MOSCHIP usb-ethernet driver";
 
 static int mcs7830_get_reg(struct usbnet *dev, u16 index, u16 size, void *data)
 {
-	return usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ,
-				0x0000, index, data, size);
+	int ret;
+
+	ret = usbnet_read_cmd(dev, MCS7830_RD_BREQ, MCS7830_RD_BMREQ,
+			      0x0000, index, data, size);
+	if (ret < 0)
+		return ret;
+	else if (ret < size)
+		return -ENODATA;
+
+	return ret;
 }
 
 static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void *data)
-- 
GitLab


From f871cd8ee0f02ad7b00f9c6f326b3d6d2c386535 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 12 Nov 2021 16:22:02 +0100
Subject: [PATCH 3107/4878] ext4: avoid trim error on fs with small groups

[ Upstream commit 173b6e383d2a204c9921ffc1eca3b87aa2106c33 ]

A user reported FITRIM ioctl failing for him on ext4 on some devices
without apparent reason.  After some debugging we've found out that
these devices (being LVM volumes) report rather large discard
granularity of 42MB and the filesystem had 1k blocksize and thus group
size of 8MB. Because ext4 FITRIM implementation puts discard
granularity into minlen, ext4_trim_fs() declared the trim request as
invalid. However just silently doing nothing seems to be a more
appropriate reaction to such combination of parameters since user did
not specify anything wrong.

CC: Lukas Czerner <lczerner@redhat.com>
Fixes: 5c2ed62fd447 ("ext4: Adjust minlen with discard_granularity in the FITRIM ioctl")
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20211112152202.26614-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/ioctl.c   | 2 --
 fs/ext4/mballoc.c | 8 ++++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index cb54ea6461fd8..413bf3d2f7844 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -1123,8 +1123,6 @@ resizefs_out:
 		    sizeof(range)))
 			return -EFAULT;
 
-		range.minlen = max((unsigned int)range.minlen,
-				   q->limits.discard_granularity);
 		ret = ext4_trim_fs(sb, &range);
 		if (ret < 0)
 			return ret;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index d7cb7d719ee58..60aef7fdd61d0 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -5815,6 +5815,7 @@ out:
  */
 int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 {
+	struct request_queue *q = bdev_get_queue(sb->s_bdev);
 	struct ext4_group_info *grp;
 	ext4_group_t group, first_group, last_group;
 	ext4_grpblk_t cnt = 0, first_cluster, last_cluster;
@@ -5833,6 +5834,13 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 	    start >= max_blks ||
 	    range->len < sb->s_blocksize)
 		return -EINVAL;
+	/* No point to try to trim less than discard granularity */
+	if (range->minlen < q->limits.discard_granularity) {
+		minlen = EXT4_NUM_B2C(EXT4_SB(sb),
+			q->limits.discard_granularity >> sb->s_blocksize_bits);
+		if (minlen > EXT4_CLUSTERS_PER_GROUP(sb))
+			goto out;
+	}
 	if (end >= max_blks)
 		end = max_blks - 1;
 	if (end <= first_data_blk)
-- 
GitLab


From 49d76154ba8d8f6c327979b8d3bca0cb14ceec68 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 16 Nov 2021 08:13:12 +0100
Subject: [PATCH 3108/4878] ALSA: jack: Add missing rwsem around
 snd_ctl_remove() calls

[ Upstream commit 06764dc931848c3a9bc01a63bbf76a605408bb54 ]

snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation).  This patch add the missing
rwsem calls around it.

Fixes: 9058cbe1eed2 ("ALSA: jack: implement kctl creating for jack devices")
Link: https://lore.kernel.org/r/20211116071314.15065-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/core/jack.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/core/jack.c b/sound/core/jack.c
index d6502dff247a8..dc2e06ae24149 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -54,10 +54,13 @@ static int snd_jack_dev_free(struct snd_device *device)
 	struct snd_card *card = device->card;
 	struct snd_jack_kctl *jack_kctl, *tmp_jack_kctl;
 
+	down_write(&card->controls_rwsem);
 	list_for_each_entry_safe(jack_kctl, tmp_jack_kctl, &jack->kctl_list, list) {
 		list_del_init(&jack_kctl->list);
 		snd_ctl_remove(card, jack_kctl->kctl);
 	}
+	up_write(&card->controls_rwsem);
+
 	if (jack->private_free)
 		jack->private_free(jack);
 
-- 
GitLab


From 180e9d7384c6ba2467452d2dc9e83263c97ab13b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 16 Nov 2021 08:13:13 +0100
Subject: [PATCH 3109/4878] ALSA: PCM: Add missing rwsem around
 snd_ctl_remove() calls

[ Upstream commit 5471e9762e1af4b7df057a96bfd46cc250979b88 ]

snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation).  This patch add the missing
rwsem calls around it.

Fixes: a8ff48cb7083 ("ALSA: pcm: Free chmap at PCM free callback, too")
Link: https://lore.kernel.org/r/20211116071314.15065-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/core/pcm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 41cbdac5b1cfa..a8ae5928decda 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -810,7 +810,11 @@ EXPORT_SYMBOL(snd_pcm_new_internal);
 static void free_chmap(struct snd_pcm_str *pstr)
 {
 	if (pstr->chmap_kctl) {
-		snd_ctl_remove(pstr->pcm->card, pstr->chmap_kctl);
+		struct snd_card *card = pstr->pcm->card;
+
+		down_write(&card->controls_rwsem);
+		snd_ctl_remove(card, pstr->chmap_kctl);
+		up_write(&card->controls_rwsem);
 		pstr->chmap_kctl = NULL;
 	}
 }
-- 
GitLab


From 84cd5c029d4846864fee0aeb71309b034f71cc78 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 16 Nov 2021 08:13:14 +0100
Subject: [PATCH 3110/4878] ALSA: hda: Add missing rwsem around
 snd_ctl_remove() calls

[ Upstream commit 80bd64af75b4bb11c0329bc66c35da2ddfb66d88 ]

snd_ctl_remove() has to be called with card->controls_rwsem held (when
called after the card instantiation).  This patch add the missing
rwsem calls around it.

Fixes: d13bd412dce2 ("ALSA: hda - Manage kcontrol lists")
Link: https://lore.kernel.org/r/20211116071314.15065-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/hda_codec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 6dece719be669..39281106477eb 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1727,8 +1727,11 @@ void snd_hda_ctls_clear(struct hda_codec *codec)
 {
 	int i;
 	struct hda_nid_item *items = codec->mixers.list;
+
+	down_write(&codec->card->controls_rwsem);
 	for (i = 0; i < codec->mixers.used; i++)
 		snd_ctl_remove(codec->card, items[i].kctl);
+	up_write(&codec->card->controls_rwsem);
 	snd_array_free(&codec->mixers);
 	snd_array_free(&codec->nids);
 }
-- 
GitLab


From 04a032ea2498cf93cfd85d68a3004c6ef4691d81 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Fri, 12 Nov 2021 09:59:04 +0100
Subject: [PATCH 3111/4878] RDMA/bnxt_re: Scan the whole bitmap when checking
 if "disabling RCFW with pending cmd-bit"

[ Upstream commit a917dfb66c0a1fa1caacf3d71edcafcab48e6ff0 ]

The 'cmdq->cmdq_bitmap' bitmap is 'rcfw->cmdq_depth' bits long.  The size
stored in 'cmdq->bmap_size' is the size of the bitmap in bytes.

Remove this erroneous 'bmap_size' and use 'rcfw->cmdq_depth' directly in
'bnxt_qplib_disable_rcfw_channel()'. Otherwise some error messages may be
missing.

Other uses of 'cmdq_bitmap' already take into account 'rcfw->cmdq_depth'
directly.

Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/47ed717c3070a1d0f53e7b4c768a4fd11caf365d.1636707421.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 6 ++----
 drivers/infiniband/hw/bnxt_re/qplib_rcfw.h | 1 -
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
index 441eb421e5e59..5759027914b01 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
@@ -614,8 +614,6 @@ int bnxt_qplib_alloc_rcfw_channel(struct bnxt_qplib_res *res,
 	if (!cmdq->cmdq_bitmap)
 		goto fail;
 
-	cmdq->bmap_size = bmap_size;
-
 	/* Allocate one extra to hold the QP1 entries */
 	rcfw->qp_tbl_size = qp_tbl_sz + 1;
 	rcfw->qp_tbl = kcalloc(rcfw->qp_tbl_size, sizeof(struct bnxt_qplib_qp_node),
@@ -663,8 +661,8 @@ void bnxt_qplib_disable_rcfw_channel(struct bnxt_qplib_rcfw *rcfw)
 	iounmap(cmdq->cmdq_mbox.reg.bar_reg);
 	iounmap(creq->creq_db.reg.bar_reg);
 
-	indx = find_first_bit(cmdq->cmdq_bitmap, cmdq->bmap_size);
-	if (indx != cmdq->bmap_size)
+	indx = find_first_bit(cmdq->cmdq_bitmap, rcfw->cmdq_depth);
+	if (indx != rcfw->cmdq_depth)
 		dev_err(&rcfw->pdev->dev,
 			"disabling RCFW with pending cmd-bit %lx\n", indx);
 
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
index 5f2f0a5a3560f..6953f4e53dd20 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
@@ -150,7 +150,6 @@ struct bnxt_qplib_cmdq_ctx {
 	wait_queue_head_t		waitq;
 	unsigned long			flags;
 	unsigned long			*cmdq_bitmap;
-	u32				bmap_size;
 	u32				seq_num;
 };
 
-- 
GitLab


From c5f414d69ac9fd80adac1dd1df9776eba305d076 Mon Sep 17 00:00:00 2001
From: Kamal Heib <kamalheib1@gmail.com>
Date: Wed, 17 Nov 2021 16:59:54 +0200
Subject: [PATCH 3112/4878] RDMA/hns: Validate the pkey index

[ Upstream commit 2a67fcfa0db6b4075515bd23497750849b88850f ]

Before query pkey, make sure that the queried index is valid.

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211117145954.123893-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index ba65823a5c0bb..c0249e4874a96 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -279,6 +279,9 @@ static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device,
 static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index,
 			       u16 *pkey)
 {
+	if (index > 0)
+		return -EINVAL;
+
 	*pkey = PKEY_ID;
 
 	return 0;
-- 
GitLab


From 999528d8a7495ae4ee42159620742cb0f536a003 Mon Sep 17 00:00:00 2001
From: Igor Pylypiv <ipylypiv@google.com>
Date: Mon, 1 Nov 2021 16:28:24 -0700
Subject: [PATCH 3113/4878] scsi: pm80xx: Update WARN_ON check in
 pm8001_mpi_build_cmd()

[ Upstream commit 606c54ae975ad3af540b505b46b55a687501711f ]

Starting from commit 05c6c029a44d ("scsi: pm80xx: Increase number of
supported queues") driver initializes only max_q_num queues.  Do not use an
invalid queue if the WARN_ON condition is true.

Link: https://lore.kernel.org/r/20211101232825.2350233-4-ipylypiv@google.com
Fixes: 7640e1eb8c5d ("scsi: pm80xx: Make mpi_build_cmd locking consistent")
Reviewed-by: Vishakha Channapattan <vishakhavc@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 5d751628a6340..9b318958d78cc 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1323,7 +1323,9 @@ int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
 	int q_index = circularQ - pm8001_ha->inbnd_q_tbl;
 	int rv = -1;
 
-	WARN_ON(q_index >= PM8001_MAX_INB_NUM);
+	if (WARN_ON(q_index >= pm8001_ha->max_q_num))
+		return -EINVAL;
+
 	spin_lock_irqsave(&circularQ->iq_lock, flags);
 	rv = pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
 			&pMessage);
-- 
GitLab


From 9ca761ef946dadbc01965963c3a63d001ab35bfa Mon Sep 17 00:00:00 2001
From: Adam Ford <aford173@gmail.com>
Date: Wed, 17 Nov 2021 07:32:02 -0600
Subject: [PATCH 3114/4878] clk: imx8mn: Fix imx8mn_clko1_sels

[ Upstream commit 570727e9acfac1c2330a01dd5e1272e9c3acec08 ]

When attempting to use sys_pll1_80m as the parent for clko1, the
system hangs.  This is due to the fact that the source select
for sys_pll1_80m was incorrectly pointing to m7_alt_pll_clk, which
doesn't yet exist.

According to Rev 3 of the TRM, The imx8mn_clko1_sels also incorrectly
references an osc_27m which does not exist, nor does an entry for
source select bits 010b.  Fix both by inserting a dummy clock into
the missing space in the table and renaming the incorrectly name clock
with dummy.

Fixes: 96d6392b54db ("clk: imx: Add support for i.MX8MN clock driver")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20211117133202.775633-1-aford173@gmail.com
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/imx/clk-imx8mn.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c
index 33a7ddc23cd24..db122d94db583 100644
--- a/drivers/clk/imx/clk-imx8mn.c
+++ b/drivers/clk/imx/clk-imx8mn.c
@@ -274,9 +274,9 @@ static const char * const imx8mn_pdm_sels[] = {"osc_24m", "sys_pll2_100m", "audi
 
 static const char * const imx8mn_dram_core_sels[] = {"dram_pll_out", "dram_alt_root", };
 
-static const char * const imx8mn_clko1_sels[] = {"osc_24m", "sys_pll1_800m", "osc_27m",
-						 "sys_pll1_200m", "audio_pll2_out", "vpu_pll",
-						 "sys_pll1_80m", };
+static const char * const imx8mn_clko1_sels[] = {"osc_24m", "sys_pll1_800m", "dummy",
+						 "sys_pll1_200m", "audio_pll2_out", "sys_pll2_500m",
+						 "dummy", "sys_pll1_80m", };
 static const char * const imx8mn_clko2_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_400m",
 						 "sys_pll2_166m", "sys_pll3_out", "audio_pll1_out",
 						 "video_pll1_out", "osc_32k", };
-- 
GitLab


From 5a821af769bbf3c8c9e813af767a9bd4330d5be3 Mon Sep 17 00:00:00 2001
From: Peiwei Hu <jlu.hpw@foxmail.com>
Date: Fri, 19 Nov 2021 17:12:18 +0800
Subject: [PATCH 3115/4878] powerpc/prom_init: Fix improper check of
 prom_getprop()

[ Upstream commit 869fb7e5aecbc163003f93f36dcc26d0554319f6 ]

prom_getprop() can return PROM_ERROR. Binary operator can not identify
it.

Fixes: 94d2dde738a5 ("[POWERPC] Efika: prune fixups and make them more carefull")
Signed-off-by: Peiwei Hu <jlu.hpw@foxmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/tencent_BA28CC6897B7C95A92EB8C580B5D18589105@qq.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/prom_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 7e337c570ea6b..9e71c0739f08d 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2956,7 +2956,7 @@ static void __init fixup_device_tree_efika_add_phy(void)
 
 	/* Check if the phy-handle property exists - bail if it does */
 	rv = prom_getprop(node, "phy-handle", prop, sizeof(prop));
-	if (!rv)
+	if (rv <= 0)
 		return;
 
 	/*
-- 
GitLab


From 2bd8d937957f663e2473c977ec0be83cd9e86c88 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Thu, 25 Nov 2021 10:51:57 +0100
Subject: [PATCH 3116/4878] ASoC: uniphier: drop selecting non-existing
 SND_SOC_UNIPHIER_AIO_DMA

[ Upstream commit 49f893253ab43566e34332a969324531fea463f6 ]

Commit f37fe2f9987b ("ASoC: uniphier: add support for UniPhier AIO common
driver") adds configs SND_SOC_UNIPHIER_{LD11,PXS2}, which select the
non-existing config SND_SOC_UNIPHIER_AIO_DMA.

Hence, ./scripts/checkkconfigsymbols.py warns:

  SND_SOC_UNIPHIER_AIO_DMA
  Referencing files: sound/soc/uniphier/Kconfig

Probably, there is actually no further config intended to be selected
here. So, just drop selecting the non-existing config.

Fixes: f37fe2f9987b ("ASoC: uniphier: add support for UniPhier AIO common driver")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20211125095158.8394-2-lukas.bulwahn@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/uniphier/Kconfig | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sound/soc/uniphier/Kconfig b/sound/soc/uniphier/Kconfig
index aa3592ee1358b..ddfa6424c656b 100644
--- a/sound/soc/uniphier/Kconfig
+++ b/sound/soc/uniphier/Kconfig
@@ -23,7 +23,6 @@ config SND_SOC_UNIPHIER_LD11
 	tristate "UniPhier LD11/LD20 Device Driver"
 	depends on SND_SOC_UNIPHIER
 	select SND_SOC_UNIPHIER_AIO
-	select SND_SOC_UNIPHIER_AIO_DMA
 	help
 	  This adds ASoC driver for Socionext UniPhier LD11/LD20
 	  input and output that can be used with other codecs.
@@ -34,7 +33,6 @@ config SND_SOC_UNIPHIER_PXS2
 	tristate "UniPhier PXs2 Device Driver"
 	depends on SND_SOC_UNIPHIER
 	select SND_SOC_UNIPHIER_AIO
-	select SND_SOC_UNIPHIER_AIO_DMA
 	help
 	  This adds ASoC driver for Socionext UniPhier PXs2
 	  input and output that can be used with other codecs.
-- 
GitLab


From a9c9d2ff642365b2740cd159f0fdc42165290af1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20S=C3=B6derlund?=
 <niklas.soderlund+renesas@ragnatech.se>
Date: Tue, 9 Nov 2021 11:30:45 +0100
Subject: [PATCH 3117/4878] dt-bindings: thermal: Fix definition of
 cooling-maps contribution property
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 49bcb1506f2e095262c01bda7fd1c0db524c91e2 ]

When converting the thermal-zones bindings to yaml the definition of the
contribution property changed. The intention is the same, an integer
value expressing a ratio of a sum on how much cooling is provided by the
device to the zone. But after the conversion the integer value is
limited to the range 0 to 100 and expressed as a percentage.

This is problematic for two reasons.

- This do not match how the binding is used. Out of the 18 files that
  make use of the property only two (ste-dbx5x0.dtsi and
  ste-hrefv60plus.dtsi) sets it at a value that satisfy the binding,
  100. The remaining 16 files set the value higher and fail to validate.

- Expressing the value as a percentage instead of a ratio of the sum is
  confusing as there is nothing to enforce the sum in the zone is not
  greater then 100.

This patch restore the pre yaml conversion description and removes the
value limitation allowing the usage of the bindings to validate.

Fixes: 1202a442a31fd2e5 ("dt-bindings: thermal: Add yaml bindings for thermal zones")
Reported-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20211109103045.1403686-1-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../devicetree/bindings/thermal/thermal-zones.yaml       | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index 164f71598c595..1b3954aa71c15 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -199,12 +199,11 @@ patternProperties:
 
               contribution:
                 $ref: /schemas/types.yaml#/definitions/uint32
-                minimum: 0
-                maximum: 100
                 description:
-                  The percentage contribution of the cooling devices at the
-                  specific trip temperature referenced in this map
-                  to this thermal zone
+                  The cooling contribution to the thermal zone of the referred
+                  cooling device at the referred trip point. The contribution is
+                  a ratio of the sum of all cooling contributions within a
+                  thermal zone.
 
             required:
               - trip
-- 
GitLab


From f4df6db5b0b8a5d43a7f451385f162df8a45b7ed Mon Sep 17 00:00:00 2001
From: Jordan Niethe <jniethe5@gmail.com>
Date: Wed, 14 Oct 2020 18:28:37 +1100
Subject: [PATCH 3118/4878] powerpc/64s: Convert some cpu_setup() and
 cpu_restore() functions to C

[ Upstream commit 344fbab991a568dc33ad90711b489d870e18d26d ]

The only thing keeping the cpu_setup() and cpu_restore() functions
used in the cputable entries for Power7, Power8, Power9 and Power10 in
assembly was cpu_restore() being called before there was a stack in
generic_secondary_smp_init(). Commit ("powerpc/64: Set up a kernel
stack for secondaries before cpu_restore()") means that it is now
possible to use C.

Rewrite the functions in C so they are a little bit easier to read.
This is not changing their functionality.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
[mpe: Tweak copyright and authorship notes]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201014072837.24539-2-jniethe5@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/cpu_setup_power.h |  12 +
 arch/powerpc/kernel/cpu_setup_power.S      | 252 -------------------
 arch/powerpc/kernel/cpu_setup_power.c      | 271 +++++++++++++++++++++
 arch/powerpc/kernel/cputable.c             |  12 +-
 4 files changed, 287 insertions(+), 260 deletions(-)
 create mode 100644 arch/powerpc/include/asm/cpu_setup_power.h
 delete mode 100644 arch/powerpc/kernel/cpu_setup_power.S
 create mode 100644 arch/powerpc/kernel/cpu_setup_power.c

diff --git a/arch/powerpc/include/asm/cpu_setup_power.h b/arch/powerpc/include/asm/cpu_setup_power.h
new file mode 100644
index 0000000000000..24be9131f8032
--- /dev/null
+++ b/arch/powerpc/include/asm/cpu_setup_power.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2020 IBM Corporation
+ */
+void __setup_cpu_power7(unsigned long offset, struct cpu_spec *spec);
+void __restore_cpu_power7(void);
+void __setup_cpu_power8(unsigned long offset, struct cpu_spec *spec);
+void __restore_cpu_power8(void);
+void __setup_cpu_power9(unsigned long offset, struct cpu_spec *spec);
+void __restore_cpu_power9(void);
+void __setup_cpu_power10(unsigned long offset, struct cpu_spec *spec);
+void __restore_cpu_power10(void);
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
deleted file mode 100644
index 704e8b9501eee..0000000000000
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ /dev/null
@@ -1,252 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * This file contains low level CPU setup functions.
- *    Copyright (C) 2003 Benjamin Herrenschmidt (benh@kernel.crashing.org)
- */
-
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/cputable.h>
-#include <asm/ppc_asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/cache.h>
-#include <asm/book3s/64/mmu-hash.h>
-
-/* Entry: r3 = crap, r4 = ptr to cputable entry
- *
- * Note that we can be called twice for pseudo-PVRs
- */
-_GLOBAL(__setup_cpu_power7)
-	mflr	r11
-	bl	__init_hvmode_206
-	mtlr	r11
-	beqlr
-	li	r0,0
-	mtspr	SPRN_LPID,r0
-	LOAD_REG_IMMEDIATE(r0, PCR_MASK)
-	mtspr	SPRN_PCR,r0
-	mfspr	r3,SPRN_LPCR
-	li	r4,(LPCR_LPES1 >> LPCR_LPES_SH)
-	bl	__init_LPCR_ISA206
-	mtlr	r11
-	blr
-
-_GLOBAL(__restore_cpu_power7)
-	mflr	r11
-	mfmsr	r3
-	rldicl.	r0,r3,4,63
-	beqlr
-	li	r0,0
-	mtspr	SPRN_LPID,r0
-	LOAD_REG_IMMEDIATE(r0, PCR_MASK)
-	mtspr	SPRN_PCR,r0
-	mfspr	r3,SPRN_LPCR
-	li	r4,(LPCR_LPES1 >> LPCR_LPES_SH)
-	bl	__init_LPCR_ISA206
-	mtlr	r11
-	blr
-
-_GLOBAL(__setup_cpu_power8)
-	mflr	r11
-	bl	__init_FSCR
-	bl	__init_PMU
-	bl	__init_PMU_ISA207
-	bl	__init_hvmode_206
-	mtlr	r11
-	beqlr
-	li	r0,0
-	mtspr	SPRN_LPID,r0
-	LOAD_REG_IMMEDIATE(r0, PCR_MASK)
-	mtspr	SPRN_PCR,r0
-	mfspr	r3,SPRN_LPCR
-	ori	r3, r3, LPCR_PECEDH
-	li	r4,0 /* LPES = 0 */
-	bl	__init_LPCR_ISA206
-	bl	__init_HFSCR
-	bl	__init_PMU_HV
-	bl	__init_PMU_HV_ISA207
-	mtlr	r11
-	blr
-
-_GLOBAL(__restore_cpu_power8)
-	mflr	r11
-	bl	__init_FSCR
-	bl	__init_PMU
-	bl	__init_PMU_ISA207
-	mfmsr	r3
-	rldicl.	r0,r3,4,63
-	mtlr	r11
-	beqlr
-	li	r0,0
-	mtspr	SPRN_LPID,r0
-	LOAD_REG_IMMEDIATE(r0, PCR_MASK)
-	mtspr	SPRN_PCR,r0
-	mfspr   r3,SPRN_LPCR
-	ori	r3, r3, LPCR_PECEDH
-	li	r4,0 /* LPES = 0 */
-	bl	__init_LPCR_ISA206
-	bl	__init_HFSCR
-	bl	__init_PMU_HV
-	bl	__init_PMU_HV_ISA207
-	mtlr	r11
-	blr
-
-_GLOBAL(__setup_cpu_power10)
-	mflr	r11
-	bl	__init_FSCR_power10
-	bl	__init_PMU
-	bl	__init_PMU_ISA31
-	b	1f
-
-_GLOBAL(__setup_cpu_power9)
-	mflr	r11
-	bl	__init_FSCR_power9
-	bl	__init_PMU
-1:	bl	__init_hvmode_206
-	mtlr	r11
-	beqlr
-	li	r0,0
-	mtspr	SPRN_PSSCR,r0
-	mtspr	SPRN_LPID,r0
-	mtspr	SPRN_PID,r0
-	LOAD_REG_IMMEDIATE(r0, PCR_MASK)
-	mtspr	SPRN_PCR,r0
-	mfspr	r3,SPRN_LPCR
-	LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE  | LPCR_HEIC)
-	or	r3, r3, r4
-	LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR)
-	andc	r3, r3, r4
-	li	r4,0 /* LPES = 0 */
-	bl	__init_LPCR_ISA300
-	bl	__init_HFSCR
-	bl	__init_PMU_HV
-	mtlr	r11
-	blr
-
-_GLOBAL(__restore_cpu_power10)
-	mflr	r11
-	bl	__init_FSCR_power10
-	bl	__init_PMU
-	bl	__init_PMU_ISA31
-	b	1f
-
-_GLOBAL(__restore_cpu_power9)
-	mflr	r11
-	bl	__init_FSCR_power9
-	bl	__init_PMU
-1:	mfmsr	r3
-	rldicl.	r0,r3,4,63
-	mtlr	r11
-	beqlr
-	li	r0,0
-	mtspr	SPRN_PSSCR,r0
-	mtspr	SPRN_LPID,r0
-	mtspr	SPRN_PID,r0
-	LOAD_REG_IMMEDIATE(r0, PCR_MASK)
-	mtspr	SPRN_PCR,r0
-	mfspr   r3,SPRN_LPCR
-	LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE | LPCR_HEIC)
-	or	r3, r3, r4
-	LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR)
-	andc	r3, r3, r4
-	li	r4,0 /* LPES = 0 */
-	bl	__init_LPCR_ISA300
-	bl	__init_HFSCR
-	bl	__init_PMU_HV
-	mtlr	r11
-	blr
-
-__init_hvmode_206:
-	/* Disable CPU_FTR_HVMODE and exit if MSR:HV is not set */
-	mfmsr	r3
-	rldicl.	r0,r3,4,63
-	bnelr
-	ld	r5,CPU_SPEC_FEATURES(r4)
-	LOAD_REG_IMMEDIATE(r6,CPU_FTR_HVMODE | CPU_FTR_P9_TM_HV_ASSIST)
-	andc	r5,r5,r6
-	std	r5,CPU_SPEC_FEATURES(r4)
-	blr
-
-__init_LPCR_ISA206:
-	/* Setup a sane LPCR:
-	 *   Called with initial LPCR in R3 and desired LPES 2-bit value in R4
-	 *
-	 *   LPES = 0b01 (HSRR0/1 used for 0x500)
-	 *   PECE = 0b111
-	 *   DPFD = 4
-	 *   HDICE = 0
-	 *   VC = 0b100 (VPM0=1, VPM1=0, ISL=0)
-	 *   VRMASD = 0b10000 (L=1, LP=00)
-	 *
-	 * Other bits untouched for now
-	 */
-	li	r5,0x10
-	rldimi	r3,r5, LPCR_VRMASD_SH, 64-LPCR_VRMASD_SH-5
-
-	/* POWER9 has no VRMASD */
-__init_LPCR_ISA300:
-	rldimi	r3,r4, LPCR_LPES_SH, 64-LPCR_LPES_SH-2
-	ori	r3,r3,(LPCR_PECE0|LPCR_PECE1|LPCR_PECE2)
-	li	r5,4
-	rldimi	r3,r5, LPCR_DPFD_SH, 64-LPCR_DPFD_SH-3
-	clrrdi	r3,r3,1		/* clear HDICE */
-	li	r5,4
-	rldimi	r3,r5, LPCR_VC_SH, 0
-	mtspr	SPRN_LPCR,r3
-	isync
-	blr
-
-__init_FSCR_power10:
-	mfspr	r3, SPRN_FSCR
-	ori	r3, r3, FSCR_PREFIX
-	mtspr	SPRN_FSCR, r3
-	// fall through
-
-__init_FSCR_power9:
-	mfspr	r3, SPRN_FSCR
-	ori	r3, r3, FSCR_SCV
-	mtspr	SPRN_FSCR, r3
-	// fall through
-
-__init_FSCR:
-	mfspr	r3,SPRN_FSCR
-	ori	r3,r3,FSCR_TAR|FSCR_EBB
-	mtspr	SPRN_FSCR,r3
-	blr
-
-__init_HFSCR:
-	mfspr	r3,SPRN_HFSCR
-	ori	r3,r3,HFSCR_TAR|HFSCR_TM|HFSCR_BHRB|HFSCR_PM|\
-		      HFSCR_DSCR|HFSCR_VECVSX|HFSCR_FP|HFSCR_EBB|HFSCR_MSGP
-	mtspr	SPRN_HFSCR,r3
-	blr
-
-__init_PMU_HV:
-	li	r5,0
-	mtspr	SPRN_MMCRC,r5
-	blr
-
-__init_PMU_HV_ISA207:
-	li	r5,0
-	mtspr	SPRN_MMCRH,r5
-	blr
-
-__init_PMU:
-	li	r5,0
-	mtspr	SPRN_MMCRA,r5
-	mtspr	SPRN_MMCR0,r5
-	mtspr	SPRN_MMCR1,r5
-	mtspr	SPRN_MMCR2,r5
-	blr
-
-__init_PMU_ISA207:
-	li	r5,0
-	mtspr	SPRN_MMCRS,r5
-	blr
-
-__init_PMU_ISA31:
-	li	r5,0
-	mtspr	SPRN_MMCR3,r5
-	LOAD_REG_IMMEDIATE(r5, MMCRA_BHRB_DISABLE)
-	mtspr	SPRN_MMCRA,r5
-	blr
diff --git a/arch/powerpc/kernel/cpu_setup_power.c b/arch/powerpc/kernel/cpu_setup_power.c
new file mode 100644
index 0000000000000..0c2191ee139ec
--- /dev/null
+++ b/arch/powerpc/kernel/cpu_setup_power.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2020, Jordan Niethe, IBM Corporation.
+ *
+ * This file contains low level CPU setup functions.
+ * Originally written in assembly by Benjamin Herrenschmidt & various other
+ * authors.
+ */
+
+#include <asm/reg.h>
+#include <asm/synch.h>
+#include <linux/bitops.h>
+#include <asm/cputable.h>
+#include <asm/cpu_setup_power.h>
+
+/* Disable CPU_FTR_HVMODE and return false if MSR:HV is not set */
+static bool init_hvmode_206(struct cpu_spec *t)
+{
+	u64 msr;
+
+	msr = mfmsr();
+	if (msr & MSR_HV)
+		return true;
+
+	t->cpu_features &= ~(CPU_FTR_HVMODE | CPU_FTR_P9_TM_HV_ASSIST);
+	return false;
+}
+
+static void init_LPCR_ISA300(u64 lpcr, u64 lpes)
+{
+	/* POWER9 has no VRMASD */
+	lpcr |= (lpes << LPCR_LPES_SH) & LPCR_LPES;
+	lpcr |= LPCR_PECE0|LPCR_PECE1|LPCR_PECE2;
+	lpcr |= (4ull << LPCR_DPFD_SH) & LPCR_DPFD;
+	lpcr &= ~LPCR_HDICE;	/* clear HDICE */
+	lpcr |= (4ull << LPCR_VC_SH);
+	mtspr(SPRN_LPCR, lpcr);
+	isync();
+}
+
+/*
+ * Setup a sane LPCR:
+ *   Called with initial LPCR and desired LPES 2-bit value
+ *
+ *   LPES = 0b01 (HSRR0/1 used for 0x500)
+ *   PECE = 0b111
+ *   DPFD = 4
+ *   HDICE = 0
+ *   VC = 0b100 (VPM0=1, VPM1=0, ISL=0)
+ *   VRMASD = 0b10000 (L=1, LP=00)
+ *
+ * Other bits untouched for now
+ */
+static void init_LPCR_ISA206(u64 lpcr, u64 lpes)
+{
+	lpcr |= (0x10ull << LPCR_VRMASD_SH) & LPCR_VRMASD;
+	init_LPCR_ISA300(lpcr, lpes);
+}
+
+static void init_FSCR(void)
+{
+	u64 fscr;
+
+	fscr = mfspr(SPRN_FSCR);
+	fscr |= FSCR_TAR|FSCR_EBB;
+	mtspr(SPRN_FSCR, fscr);
+}
+
+static void init_FSCR_power9(void)
+{
+	u64 fscr;
+
+	fscr = mfspr(SPRN_FSCR);
+	fscr |= FSCR_SCV;
+	mtspr(SPRN_FSCR, fscr);
+	init_FSCR();
+}
+
+static void init_FSCR_power10(void)
+{
+	u64 fscr;
+
+	fscr = mfspr(SPRN_FSCR);
+	fscr |= FSCR_PREFIX;
+	mtspr(SPRN_FSCR, fscr);
+	init_FSCR_power9();
+}
+
+static void init_HFSCR(void)
+{
+	u64 hfscr;
+
+	hfscr = mfspr(SPRN_HFSCR);
+	hfscr |= HFSCR_TAR|HFSCR_TM|HFSCR_BHRB|HFSCR_PM|HFSCR_DSCR|\
+		 HFSCR_VECVSX|HFSCR_FP|HFSCR_EBB|HFSCR_MSGP;
+	mtspr(SPRN_HFSCR, hfscr);
+}
+
+static void init_PMU_HV(void)
+{
+	mtspr(SPRN_MMCRC, 0);
+}
+
+static void init_PMU_HV_ISA207(void)
+{
+	mtspr(SPRN_MMCRH, 0);
+}
+
+static void init_PMU(void)
+{
+	mtspr(SPRN_MMCRA, 0);
+	mtspr(SPRN_MMCR0, 0);
+	mtspr(SPRN_MMCR1, 0);
+	mtspr(SPRN_MMCR2, 0);
+}
+
+static void init_PMU_ISA207(void)
+{
+	mtspr(SPRN_MMCRS, 0);
+}
+
+static void init_PMU_ISA31(void)
+{
+	mtspr(SPRN_MMCR3, 0);
+	mtspr(SPRN_MMCRA, MMCRA_BHRB_DISABLE);
+}
+
+/*
+ * Note that we can be called twice of pseudo-PVRs.
+ * The parameter offset is not used.
+ */
+
+void __setup_cpu_power7(unsigned long offset, struct cpu_spec *t)
+{
+	if (!init_hvmode_206(t))
+		return;
+
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA206(mfspr(SPRN_LPCR), LPCR_LPES1 >> LPCR_LPES_SH);
+}
+
+void __restore_cpu_power7(void)
+{
+	u64 msr;
+
+	msr = mfmsr();
+	if (!(msr & MSR_HV))
+		return;
+
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA206(mfspr(SPRN_LPCR), LPCR_LPES1 >> LPCR_LPES_SH);
+}
+
+void __setup_cpu_power8(unsigned long offset, struct cpu_spec *t)
+{
+	init_FSCR();
+	init_PMU();
+	init_PMU_ISA207();
+
+	if (!init_hvmode_206(t))
+		return;
+
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA206(mfspr(SPRN_LPCR) | LPCR_PECEDH, 0); /* LPES = 0 */
+	init_HFSCR();
+	init_PMU_HV();
+	init_PMU_HV_ISA207();
+}
+
+void __restore_cpu_power8(void)
+{
+	u64 msr;
+
+	init_FSCR();
+	init_PMU();
+	init_PMU_ISA207();
+
+	msr = mfmsr();
+	if (!(msr & MSR_HV))
+		return;
+
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA206(mfspr(SPRN_LPCR) | LPCR_PECEDH, 0); /* LPES = 0 */
+	init_HFSCR();
+	init_PMU_HV();
+	init_PMU_HV_ISA207();
+}
+
+void __setup_cpu_power9(unsigned long offset, struct cpu_spec *t)
+{
+	init_FSCR_power9();
+	init_PMU();
+
+	if (!init_hvmode_206(t))
+		return;
+
+	mtspr(SPRN_PSSCR, 0);
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA300((mfspr(SPRN_LPCR) | LPCR_PECEDH | LPCR_PECE_HVEE |\
+			 LPCR_HVICE | LPCR_HEIC) & ~(LPCR_UPRT | LPCR_HR), 0);
+	init_HFSCR();
+	init_PMU_HV();
+}
+
+void __restore_cpu_power9(void)
+{
+	u64 msr;
+
+	init_FSCR_power9();
+	init_PMU();
+
+	msr = mfmsr();
+	if (!(msr & MSR_HV))
+		return;
+
+	mtspr(SPRN_PSSCR, 0);
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA300((mfspr(SPRN_LPCR) | LPCR_PECEDH | LPCR_PECE_HVEE |\
+			 LPCR_HVICE | LPCR_HEIC) & ~(LPCR_UPRT | LPCR_HR), 0);
+	init_HFSCR();
+	init_PMU_HV();
+}
+
+void __setup_cpu_power10(unsigned long offset, struct cpu_spec *t)
+{
+	init_FSCR_power10();
+	init_PMU();
+	init_PMU_ISA31();
+
+	if (!init_hvmode_206(t))
+		return;
+
+	mtspr(SPRN_PSSCR, 0);
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA300((mfspr(SPRN_LPCR) | LPCR_PECEDH | LPCR_PECE_HVEE |\
+			 LPCR_HVICE | LPCR_HEIC) & ~(LPCR_UPRT | LPCR_HR), 0);
+	init_HFSCR();
+	init_PMU_HV();
+}
+
+void __restore_cpu_power10(void)
+{
+	u64 msr;
+
+	init_FSCR_power10();
+	init_PMU();
+	init_PMU_ISA31();
+
+	msr = mfmsr();
+	if (!(msr & MSR_HV))
+		return;
+
+	mtspr(SPRN_PSSCR, 0);
+	mtspr(SPRN_LPID, 0);
+	mtspr(SPRN_PID, 0);
+	mtspr(SPRN_PCR, PCR_MASK);
+	init_LPCR_ISA300((mfspr(SPRN_LPCR) | LPCR_PECEDH | LPCR_PECE_HVEE |\
+			 LPCR_HVICE | LPCR_HEIC) & ~(LPCR_UPRT | LPCR_HR), 0);
+	init_HFSCR();
+	init_PMU_HV();
+}
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 29de58d4dfb76..8fdb40ee86d11 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -60,19 +60,15 @@ extern void __setup_cpu_7410(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 #endif /* CONFIG_PPC32 */
 #ifdef CONFIG_PPC64
+#include <asm/cpu_setup_power.h>
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970MP(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
 extern void __restore_cpu_pa6t(void);
 extern void __restore_cpu_ppc970(void);
-extern void __setup_cpu_power7(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_power7(void);
-extern void __setup_cpu_power8(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_power8(void);
-extern void __setup_cpu_power9(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_power9(void);
-extern void __setup_cpu_power10(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_power10(void);
+extern long __machine_check_early_realmode_p7(struct pt_regs *regs);
+extern long __machine_check_early_realmode_p8(struct pt_regs *regs);
+extern long __machine_check_early_realmode_p9(struct pt_regs *regs);
 #endif /* CONFIG_PPC64 */
 #if defined(CONFIG_E500)
 extern void __setup_cpu_e5500(unsigned long offset, struct cpu_spec* spec);
-- 
GitLab


From a0758b3be46d9d3fcc54f4a7613143311b062eef Mon Sep 17 00:00:00 2001
From: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Date: Thu, 26 Nov 2020 11:54:44 -0500
Subject: [PATCH 3119/4878] powerpc/perf: MMCR0 control for PMU registers under
 PMCC=00

[ Upstream commit 91668ab7db4bcfae332e561df1de2401f3f18553 ]

PowerISA v3.1 introduces new control bit (PMCCEXT) for restricting
access to group B PMU registers in problem state when
MMCR0 PMCC=0b00. In problem state and when MMCR0 PMCC=0b00,
setting the Monitor Mode Control Register bit 54 (MMCR0 PMCCEXT),
will restrict read permission on Group B Performance Monitor
Registers (SIER, SIAR, SDAR and MMCR1). When this bit is set to zero,
group B registers will be readable. In other platforms (like power9),
the older behaviour is retained where group B PMU SPRs are readable.

Patch adds support for MMCR0 PMCCEXT bit in power10 by enabling
this bit during boot and during the PMU event enable/disable callback
functions.

Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1606409684-1589-8-git-send-email-atrajeev@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/reg.h        | 1 +
 arch/powerpc/kernel/cpu_setup_power.c | 1 +
 arch/powerpc/kernel/dt_cpu_ftrs.c     | 1 +
 arch/powerpc/perf/core-book3s.c       | 4 ++++
 arch/powerpc/perf/isa207-common.c     | 8 ++++++++
 5 files changed, 15 insertions(+)

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index f4b98903064f5..6afb14b6bbc26 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -865,6 +865,7 @@
 #define   MMCR0_BHRBA	0x00200000UL /* BHRB Access allowed in userspace */
 #define   MMCR0_EBE	0x00100000UL /* Event based branch enable */
 #define   MMCR0_PMCC	0x000c0000UL /* PMC control */
+#define   MMCR0_PMCCEXT	ASM_CONST(0x00000200) /* PMCCEXT control */
 #define   MMCR0_PMCC_U6	0x00080000UL /* PMC1-6 are R/W by user (PR) */
 #define   MMCR0_PMC1CE	0x00008000UL /* PMC1 count enable*/
 #define   MMCR0_PMCjCE	ASM_CONST(0x00004000) /* PMCj count enable*/
diff --git a/arch/powerpc/kernel/cpu_setup_power.c b/arch/powerpc/kernel/cpu_setup_power.c
index 0c2191ee139ec..3cca88ee96d71 100644
--- a/arch/powerpc/kernel/cpu_setup_power.c
+++ b/arch/powerpc/kernel/cpu_setup_power.c
@@ -123,6 +123,7 @@ static void init_PMU_ISA31(void)
 {
 	mtspr(SPRN_MMCR3, 0);
 	mtspr(SPRN_MMCRA, MMCRA_BHRB_DISABLE);
+	mtspr(SPRN_MMCR0, MMCR0_PMCCEXT);
 }
 
 /*
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 1098863e17ee8..9d079659b24d3 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -454,6 +454,7 @@ static void init_pmu_power10(void)
 
 	mtspr(SPRN_MMCR3, 0);
 	mtspr(SPRN_MMCRA, MMCRA_BHRB_DISABLE);
+	mtspr(SPRN_MMCR0, MMCR0_PMCCEXT);
 }
 
 static int __init feat_enable_pmu_power10(struct dt_cpu_feature *f)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 91452313489f1..7bda7499d0401 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -95,6 +95,7 @@ static unsigned int freeze_events_kernel = MMCR0_FCS;
 #define SPRN_SIER3		0
 #define MMCRA_SAMPLE_ENABLE	0
 #define MMCRA_BHRB_DISABLE     0
+#define MMCR0_PMCCEXT		0
 
 static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
 {
@@ -1245,6 +1246,9 @@ static void power_pmu_disable(struct pmu *pmu)
 		val |= MMCR0_FC;
 		val &= ~(MMCR0_EBE | MMCR0_BHRBA | MMCR0_PMCC | MMCR0_PMAO |
 			 MMCR0_FC56);
+		/* Set mmcr0 PMCCEXT for p10 */
+		if (ppmu->flags & PPMU_ARCH_31)
+			val |= MMCR0_PMCCEXT;
 
 		/*
 		 * The barrier is to make sure the mtspr has been
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index 5e8eedda45d39..58448f0e47213 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -561,6 +561,14 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
 	if (!(pmc_inuse & 0x60))
 		mmcr->mmcr0 |= MMCR0_FC56;
 
+	/*
+	 * Set mmcr0 (PMCCEXT) for p10 which
+	 * will restrict access to group B registers
+	 * when MMCR0 PMCC=0b00.
+	 */
+	if (cpu_has_feature(CPU_FTR_ARCH_31))
+		mmcr->mmcr0 |= MMCR0_PMCCEXT;
+
 	mmcr->mmcr1 = mmcr1;
 	mmcr->mmcra = mmcra;
 	mmcr->mmcr2 = mmcr2;
-- 
GitLab


From c9ffa84a3bd1e7afc1fd2a5836bf0c87ff4feb96 Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Sat, 30 Jan 2021 23:08:29 +1000
Subject: [PATCH 3120/4878] powerpc/perf: move perf irq/nmi handling details
 into traps.c

[ Upstream commit 156b5371a9c2482a9ad23ec82d1a4f89a3ab430d ]

This is required in order to allow more significant differences between
NMI type interrupt handlers and regular asynchronous handlers.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-20-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/traps.c      | 31 +++++++++++++++++++++++++++-
 arch/powerpc/perf/core-book3s.c  | 35 ++------------------------------
 arch/powerpc/perf/core-fsl-emb.c | 25 -----------------------
 3 files changed, 32 insertions(+), 59 deletions(-)

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 77dffea3d5373..069d451240fa4 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1922,11 +1922,40 @@ void vsx_unavailable_tm(struct pt_regs *regs)
 }
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
 
-void performance_monitor_exception(struct pt_regs *regs)
+static void performance_monitor_exception_nmi(struct pt_regs *regs)
+{
+	nmi_enter();
+
+	__this_cpu_inc(irq_stat.pmu_irqs);
+
+	perf_irq(regs);
+
+	nmi_exit();
+}
+
+static void performance_monitor_exception_async(struct pt_regs *regs)
 {
+	irq_enter();
+
 	__this_cpu_inc(irq_stat.pmu_irqs);
 
 	perf_irq(regs);
+
+	irq_exit();
+}
+
+void performance_monitor_exception(struct pt_regs *regs)
+{
+	/*
+	 * On 64-bit, if perf interrupts hit in a local_irq_disable
+	 * (soft-masked) region, we consider them as NMIs. This is required to
+	 * prevent hash faults on user addresses when reading callchains (and
+	 * looks better from an irq tracing perspective).
+	 */
+	if (IS_ENABLED(CONFIG_PPC64) && unlikely(arch_irq_disabled_regs(regs)))
+		performance_monitor_exception_nmi(regs);
+	else
+		performance_monitor_exception_async(regs);
 }
 
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 7bda7499d0401..b5cac8ddcf5bc 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -110,10 +110,6 @@ static inline void perf_read_regs(struct pt_regs *regs)
 {
 	regs->result = 0;
 }
-static inline int perf_intr_is_nmi(struct pt_regs *regs)
-{
-	return 0;
-}
 
 static inline int siar_valid(struct pt_regs *regs)
 {
@@ -332,15 +328,6 @@ static inline void perf_read_regs(struct pt_regs *regs)
 	regs->result = use_siar;
 }
 
-/*
- * If interrupts were soft-disabled when a PMU interrupt occurs, treat
- * it as an NMI.
- */
-static inline int perf_intr_is_nmi(struct pt_regs *regs)
-{
-	return (regs->softe & IRQS_DISABLED);
-}
-
 /*
  * On processors like P7+ that have the SIAR-Valid bit, marked instructions
  * must be sampled only if the SIAR-valid bit is set.
@@ -2254,7 +2241,6 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 	struct perf_event *event;
 	unsigned long val[8];
 	int found, active;
-	int nmi;
 
 	if (cpuhw->n_limited)
 		freeze_limited_counters(cpuhw, mfspr(SPRN_PMC5),
@@ -2262,18 +2248,6 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 
 	perf_read_regs(regs);
 
-	/*
-	 * If perf interrupts hit in a local_irq_disable (soft-masked) region,
-	 * we consider them as NMIs. This is required to prevent hash faults on
-	 * user addresses when reading callchains. See the NMI test in
-	 * do_hash_page.
-	 */
-	nmi = perf_intr_is_nmi(regs);
-	if (nmi)
-		nmi_enter();
-	else
-		irq_enter();
-
 	/* Read all the PMCs since we'll need them a bunch of times */
 	for (i = 0; i < ppmu->n_counter; ++i)
 		val[i] = read_pmc(i + 1);
@@ -2319,8 +2293,8 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 			}
 		}
 	}
-	if (!found && !nmi && printk_ratelimit())
-		printk(KERN_WARNING "Can't find PMC that caused IRQ\n");
+	if (unlikely(!found) && !arch_irq_disabled_regs(regs))
+		printk_ratelimited(KERN_WARNING "Can't find PMC that caused IRQ\n");
 
 	/*
 	 * Reset MMCR0 to its normal value.  This will set PMXE and
@@ -2330,11 +2304,6 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 	 * we get back out of this interrupt.
 	 */
 	write_mmcr0(cpuhw, cpuhw->mmcr.mmcr0);
-
-	if (nmi)
-		nmi_exit();
-	else
-		irq_exit();
 }
 
 static void perf_event_interrupt(struct pt_regs *regs)
diff --git a/arch/powerpc/perf/core-fsl-emb.c b/arch/powerpc/perf/core-fsl-emb.c
index e0e7e276bfd25..ee721f420a7ba 100644
--- a/arch/powerpc/perf/core-fsl-emb.c
+++ b/arch/powerpc/perf/core-fsl-emb.c
@@ -31,19 +31,6 @@ static atomic_t num_events;
 /* Used to avoid races in calling reserve/release_pmc_hardware */
 static DEFINE_MUTEX(pmc_reserve_mutex);
 
-/*
- * If interrupts were soft-disabled when a PMU interrupt occurs, treat
- * it as an NMI.
- */
-static inline int perf_intr_is_nmi(struct pt_regs *regs)
-{
-#ifdef __powerpc64__
-	return (regs->softe & IRQS_DISABLED);
-#else
-	return 0;
-#endif
-}
-
 static void perf_event_interrupt(struct pt_regs *regs);
 
 /*
@@ -659,13 +646,6 @@ static void perf_event_interrupt(struct pt_regs *regs)
 	struct perf_event *event;
 	unsigned long val;
 	int found = 0;
-	int nmi;
-
-	nmi = perf_intr_is_nmi(regs);
-	if (nmi)
-		nmi_enter();
-	else
-		irq_enter();
 
 	for (i = 0; i < ppmu->n_counter; ++i) {
 		event = cpuhw->event[i];
@@ -690,11 +670,6 @@ static void perf_event_interrupt(struct pt_regs *regs)
 	mtmsr(mfmsr() | MSR_PMM);
 	mtpmr(PMRN_PMGC0, PMGC0_PMIE | PMGC0_FCECE);
 	isync();
-
-	if (nmi)
-		nmi_exit();
-	else
-		irq_exit();
 }
 
 void hw_perf_event_setup(int cpu)
-- 
GitLab


From 58014442a9e8e92f99a634ed8fd5282768d09e41 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Mon, 8 Feb 2021 15:10:24 +0000
Subject: [PATCH 3121/4878] powerpc/irq: Add helper to set regs->softe

[ Upstream commit fb5608fd117a8b48752d2b5a7e70847c1ed33d33 ]

regs->softe doesn't exist on PPC32.

Add irq_soft_mask_regs_set_state() helper to set regs->softe.
This helper will void on PPC32.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/5f37d1177a751fdbca79df461d283850ca3a34a2.1612796617.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/hw_irq.h | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index 0363734ff56e0..da94cab528dd4 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -38,6 +38,8 @@
 #define PACA_IRQ_MUST_HARD_MASK	(PACA_IRQ_EE)
 #endif
 
+#endif /* CONFIG_PPC64 */
+
 /*
  * flags for paca->irq_soft_mask
  */
@@ -46,8 +48,6 @@
 #define IRQS_PMI_DISABLED	2
 #define IRQS_ALL_DISABLED	(IRQS_DISABLED | IRQS_PMI_DISABLED)
 
-#endif /* CONFIG_PPC64 */
-
 #ifndef __ASSEMBLY__
 
 extern void replay_system_reset(void);
@@ -296,6 +296,10 @@ extern void irq_set_pending_from_srr1(unsigned long srr1);
 
 extern void force_external_irq_replay(void);
 
+static inline void irq_soft_mask_regs_set_state(struct pt_regs *regs, unsigned long val)
+{
+	regs->softe = val;
+}
 #else /* CONFIG_PPC64 */
 
 static inline unsigned long arch_local_save_flags(void)
@@ -364,6 +368,9 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
 
 static inline void may_hard_irq_enable(void) { }
 
+static inline void irq_soft_mask_regs_set_state(struct pt_regs *regs, unsigned long val)
+{
+}
 #endif /* CONFIG_PPC64 */
 
 #define ARCH_IRQ_INIT_FLAGS	IRQ_NOREQUEST
-- 
GitLab


From ef798cd035f316a537fee8ed170c127f12407085 Mon Sep 17 00:00:00 2001
From: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Date: Wed, 21 Jul 2021 01:48:29 -0400
Subject: [PATCH 3122/4878] powerpc/perf: Fix PMU callbacks to clear pending
 PMI before resetting an overflown PMC

[ Upstream commit 2c9ac51b850d84ee496b0a5d832ce66d411ae552 ]

Running perf fuzzer showed below in dmesg logs:
  "Can't find PMC that caused IRQ"

This means a PMU exception happened, but none of the PMC's (Performance
Monitor Counter) were found to be overflown. There are some corner cases
that clears the PMCs after PMI gets masked. In such cases, the perf
interrupt handler will not find the active PMC values that had caused
the overflow and thus leads to this message while replaying.

Case 1: PMU Interrupt happens during replay of other interrupts and
counter values gets cleared by PMU callbacks before replay:

During replay of interrupts like timer, __do_irq() and doorbell
exception, we conditionally enable interrupts via may_hard_irq_enable().
This could potentially create a window to generate a PMI. Since irq soft
mask is set to ALL_DISABLED, the PMI will get masked here. We could get
IPIs run before perf interrupt is replayed and the PMU events could
be deleted or stopped. This will change the PMU SPR values and resets
the counters. Snippet of ftrace log showing PMU callbacks invoked in
__do_irq():

  <idle>-0 [051] dns. 132025441306354: __do_irq <-call_do_irq
  <idle>-0 [051] dns. 132025441306430: irq_enter <-__do_irq
  <idle>-0 [051] dns. 132025441306503: irq_enter_rcu <-__do_irq
  <idle>-0 [051] dnH. 132025441306599: xive_get_irq <-__do_irq
  <<>>
  <idle>-0 [051] dnH. 132025441307770: generic_smp_call_function_single_interrupt <-smp_ipi_demux_relaxed
  <idle>-0 [051] dnH. 132025441307839: flush_smp_call_function_queue <-smp_ipi_demux_relaxed
  <idle>-0 [051] dnH. 132025441308057: _raw_spin_lock <-event_function
  <idle>-0 [051] dnH. 132025441308206: power_pmu_disable <-perf_pmu_disable
  <idle>-0 [051] dnH. 132025441308337: power_pmu_del <-event_sched_out
  <idle>-0 [051] dnH. 132025441308407: power_pmu_read <-power_pmu_del
  <idle>-0 [051] dnH. 132025441308477: read_pmc <-power_pmu_read
  <idle>-0 [051] dnH. 132025441308590: isa207_disable_pmc <-power_pmu_del
  <idle>-0 [051] dnH. 132025441308663: write_pmc <-power_pmu_del
  <idle>-0 [051] dnH. 132025441308787: power_pmu_event_idx <-perf_event_update_userpage
  <idle>-0 [051] dnH. 132025441308859: rcu_read_unlock_strict <-perf_event_update_userpage
  <idle>-0 [051] dnH. 132025441308975: power_pmu_enable <-perf_pmu_enable
  <<>>
  <idle>-0 [051] dnH. 132025441311108: irq_exit <-__do_irq
  <idle>-0 [051] dns. 132025441311319: performance_monitor_exception <-replay_soft_interrupts

Case 2: PMI's masked during local_* operations, example local_add(). If
the local_add() operation happens within a local_irq_save(), replay of
PMI will be during local_irq_restore(). Similar to case 1, this could
also create a window before replay where PMU events gets deleted or
stopped.

Fix it by updating the PMU callback function power_pmu_disable() to
check for pending perf interrupt. If there is an overflown PMC and
pending perf interrupt indicated in paca, clear the PMI bit in paca to
drop that sample. Clearing of PMI bit is done in power_pmu_disable()
since disable is invoked before any event gets deleted/stopped. With
this fix, if there are more than one event running in the PMU, there is
a chance that we clear the PMI bit for the event which is not getting
deleted/stopped. The other events may still remain active. Hence to make
sure we don't drop valid sample in such cases, another check is added in
power_pmu_enable. This checks if there is an overflown PMC found among
the active events and if so enable back the PMI bit. Two new helper
functions are introduced to clear/set the PMI, ie
clear_pmi_irq_pending() and set_pmi_irq_pending(). Helper function
pmi_irq_pending() is introduced to give a warning if there is pending
PMI bit in paca, but no PMC is overflown.

Also there are corner cases which result in performance monitor
interrupts being triggered during power_pmu_disable(). This happens
since PMXE bit is not cleared along with disabling of other MMCR0 bits
in the pmu_disable. Such PMI's could leave the PMU running and could
trigger PMI again which will set MMCR0 PMAO bit. This could lead to
spurious interrupts in some corner cases. Example, a timer after
power_pmu_del() which will re-enable interrupts and triggers a PMI again
since PMAO bit is still set. But fails to find valid overflow since PMC
was cleared in power_pmu_del(). Fix that by disabling PMXE along with
disabling of other MMCR0 bits in power_pmu_disable().

We can't just replay PMI any time. Hence this approach is preferred
rather than replaying PMI before resetting overflown PMC. Patch also
documents core-book3s on a race condition which can trigger these PMC
messages during idle path in PowerNV.

Fixes: f442d004806e ("powerpc/64s: Add support to mask perf interrupts and replay them")
Reported-by: Nageswara R Sastry <nasastry@in.ibm.com>
Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Suggested-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Make pmi_irq_pending() return bool, reflow/reword some comments]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1626846509-1350-2-git-send-email-atrajeev@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/hw_irq.h | 40 +++++++++++++++++++++
 arch/powerpc/perf/core-book3s.c   | 58 ++++++++++++++++++++++++++++++-
 2 files changed, 97 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index da94cab528dd4..0f2acbb966740 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -175,6 +175,42 @@ static inline bool arch_irqs_disabled(void)
 	return arch_irqs_disabled_flags(arch_local_save_flags());
 }
 
+static inline void set_pmi_irq_pending(void)
+{
+	/*
+	 * Invoked from PMU callback functions to set PMI bit in the paca.
+	 * This has to be called with irq's disabled (via hard_irq_disable()).
+	 */
+	if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
+		WARN_ON_ONCE(mfmsr() & MSR_EE);
+
+	get_paca()->irq_happened |= PACA_IRQ_PMI;
+}
+
+static inline void clear_pmi_irq_pending(void)
+{
+	/*
+	 * Invoked from PMU callback functions to clear the pending PMI bit
+	 * in the paca.
+	 */
+	if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
+		WARN_ON_ONCE(mfmsr() & MSR_EE);
+
+	get_paca()->irq_happened &= ~PACA_IRQ_PMI;
+}
+
+static inline bool pmi_irq_pending(void)
+{
+	/*
+	 * Invoked from PMU callback functions to check if there is a pending
+	 * PMI bit in the paca.
+	 */
+	if (get_paca()->irq_happened & PACA_IRQ_PMI)
+		return true;
+
+	return false;
+}
+
 #ifdef CONFIG_PPC_BOOK3S
 /*
  * To support disabling and enabling of irq with PMI, set of
@@ -368,6 +404,10 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
 
 static inline void may_hard_irq_enable(void) { }
 
+static inline void clear_pmi_irq_pending(void) { }
+static inline void set_pmi_irq_pending(void) { }
+static inline bool pmi_irq_pending(void) { return false; }
+
 static inline void irq_soft_mask_regs_set_state(struct pt_regs *regs, unsigned long val)
 {
 }
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index b5cac8ddcf5bc..bd34e062bd290 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -805,6 +805,19 @@ static void write_pmc(int idx, unsigned long val)
 	}
 }
 
+static int any_pmc_overflown(struct cpu_hw_events *cpuhw)
+{
+	int i, idx;
+
+	for (i = 0; i < cpuhw->n_events; i++) {
+		idx = cpuhw->event[i]->hw.idx;
+		if ((idx) && ((int)read_pmc(idx) < 0))
+			return idx;
+	}
+
+	return 0;
+}
+
 /* Called from sysrq_handle_showregs() */
 void perf_event_print_debug(void)
 {
@@ -1228,11 +1241,13 @@ static void power_pmu_disable(struct pmu *pmu)
 
 		/*
 		 * Set the 'freeze counters' bit, clear EBE/BHRBA/PMCC/PMAO/FC56
+		 * Also clear PMXE to disable PMI's getting triggered in some
+		 * corner cases during PMU disable.
 		 */
 		val  = mmcr0 = mfspr(SPRN_MMCR0);
 		val |= MMCR0_FC;
 		val &= ~(MMCR0_EBE | MMCR0_BHRBA | MMCR0_PMCC | MMCR0_PMAO |
-			 MMCR0_FC56);
+			 MMCR0_PMXE | MMCR0_FC56);
 		/* Set mmcr0 PMCCEXT for p10 */
 		if (ppmu->flags & PPMU_ARCH_31)
 			val |= MMCR0_PMCCEXT;
@@ -1246,6 +1261,23 @@ static void power_pmu_disable(struct pmu *pmu)
 		mb();
 		isync();
 
+		/*
+		 * Some corner cases could clear the PMU counter overflow
+		 * while a masked PMI is pending. One such case is when
+		 * a PMI happens during interrupt replay and perf counter
+		 * values are cleared by PMU callbacks before replay.
+		 *
+		 * If any PMC corresponding to the active PMU events are
+		 * overflown, disable the interrupt by clearing the paca
+		 * bit for PMI since we are disabling the PMU now.
+		 * Otherwise provide a warning if there is PMI pending, but
+		 * no counter is found overflown.
+		 */
+		if (any_pmc_overflown(cpuhw))
+			clear_pmi_irq_pending();
+		else
+			WARN_ON(pmi_irq_pending());
+
 		val = mmcra = cpuhw->mmcr.mmcra;
 
 		/*
@@ -1337,6 +1369,15 @@ static void power_pmu_enable(struct pmu *pmu)
 	 * (possibly updated for removal of events).
 	 */
 	if (!cpuhw->n_added) {
+		/*
+		 * If there is any active event with an overflown PMC
+		 * value, set back PACA_IRQ_PMI which would have been
+		 * cleared in power_pmu_disable().
+		 */
+		hard_irq_disable();
+		if (any_pmc_overflown(cpuhw))
+			set_pmi_irq_pending();
+
 		mtspr(SPRN_MMCRA, cpuhw->mmcr.mmcra & ~MMCRA_SAMPLE_ENABLE);
 		mtspr(SPRN_MMCR1, cpuhw->mmcr.mmcr1);
 		if (ppmu->flags & PPMU_ARCH_31)
@@ -2274,6 +2315,14 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 				break;
 			}
 		}
+
+		/*
+		 * Clear PACA_IRQ_PMI in case it was set by
+		 * set_pmi_irq_pending() when PMU was enabled
+		 * after accounting for interrupts.
+		 */
+		clear_pmi_irq_pending();
+
 		if (!active)
 			/* reset non active counters that have overflowed */
 			write_pmc(i + 1, 0);
@@ -2293,6 +2342,13 @@ static void __perf_event_interrupt(struct pt_regs *regs)
 			}
 		}
 	}
+
+	/*
+	 * During system wide profling or while specific CPU is monitored for an
+	 * event, some corner cases could cause PMC to overflow in idle path. This
+	 * will trigger a PMI after waking up from idle. Since counter values are _not_
+	 * saved/restored in idle path, can lead to below "Can't find PMC" message.
+	 */
 	if (unlikely(!found) && !arch_irq_disabled_regs(regs))
 		printk_ratelimited(KERN_WARNING "Can't find PMC that caused IRQ\n");
 
-- 
GitLab


From 86ad478c99d2fc33f5c936b37c79bf17821136e0 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Tue, 30 Nov 2021 09:42:37 +0100
Subject: [PATCH 3123/4878] powerpc/32s: Fix shift-out-of-bounds in KASAN init

[ Upstream commit af11dee4361b3519981fa04d014873f9d9edd6ac ]

================================================================================
UBSAN: shift-out-of-bounds in arch/powerpc/mm/kasan/book3s_32.c:22:23
shift exponent -1 is negative
CPU: 0 PID: 0 Comm: swapper Not tainted 5.15.5-gentoo-PowerMacG4 #9
Call Trace:
[c214be60] [c0ba0048] dump_stack_lvl+0x80/0xb0 (unreliable)
[c214be80] [c0b99288] ubsan_epilogue+0x10/0x5c
[c214be90] [c0b98fe0] __ubsan_handle_shift_out_of_bounds+0x94/0x138
[c214bf00] [c1c0f010] kasan_init_region+0xd8/0x26c
[c214bf30] [c1c0ed84] kasan_init+0xc0/0x198
[c214bf70] [c1c08024] setup_arch+0x18/0x54c
[c214bfc0] [c1c037f0] start_kernel+0x90/0x33c
[c214bff0] [00003610] 0x3610
================================================================================

This happens when the directly mapped memory is a power of 2.

Fix it by checking the shift and set the result to 0 when shift is -1

Fixes: 7974c4732642 ("powerpc/32s: Implement dedicated kasan_init_region()")
Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215169
Link: https://lore.kernel.org/r/15cbc3439d4ad988b225e2119ec99502a5cc6ad3.1638261744.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/kasan/book3s_32.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/kasan/book3s_32.c b/arch/powerpc/mm/kasan/book3s_32.c
index 202bd260a0095..35b287b0a8da4 100644
--- a/arch/powerpc/mm/kasan/book3s_32.c
+++ b/arch/powerpc/mm/kasan/book3s_32.c
@@ -19,7 +19,8 @@ int __init kasan_init_region(void *start, size_t size)
 	block = memblock_alloc(k_size, k_size_base);
 
 	if (block && k_size_base >= SZ_128K && k_start == ALIGN(k_start, k_size_base)) {
-		int k_size_more = 1 << (ffs(k_size - k_size_base) - 1);
+		int shift = ffs(k_size - k_size_base);
+		int k_size_more = shift ? 1 << (shift - 1) : 0;
 
 		setbat(-1, k_start, __pa(block), k_size_base, PAGE_KERNEL);
 		if (k_size_more >= SZ_128K)
-- 
GitLab


From cacc6c30e3eb7c452132ee5b273e248d2f263323 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@kernel.org>
Date: Thu, 27 May 2021 12:01:22 -0700
Subject: [PATCH 3124/4878] clocksource: Reduce clocksource-skew threshold

[ Upstream commit 2e27e793e280ff12cb5c202a1214c08b0d3a0f26 ]

Currently, WATCHDOG_THRESHOLD is set to detect a 62.5-millisecond skew in
a 500-millisecond WATCHDOG_INTERVAL.  This requires that clocks be skewed
by more than 12.5% in order to be marked unstable.  Except that a clock
that is skewed by that much is probably destroying unsuspecting software
right and left.  And given that there are now checks for false-positive
skews due to delays between reading the two clocks, it should be possible
to greatly decrease WATCHDOG_THRESHOLD, at least for fine-grained clocks
such as TSC.

Therefore, add a new uncertainty_margin field to the clocksource structure
that contains the maximum uncertainty in nanoseconds for the corresponding
clock.  This field may be initialized manually, as it is for
clocksource_tsc_early and clocksource_jiffies, which is copied to
refined_jiffies.  If the field is not initialized manually, it will be
computed at clock-registry time as the period of the clock in question
based on the scale and freq parameters to __clocksource_update_freq_scale()
function.  If either of those two parameters are zero, the
tens-of-milliseconds WATCHDOG_THRESHOLD is used as a cowardly alternative
to dividing by zero.  No matter how the uncertainty_margin field is
calculated, it is bounded below by twice WATCHDOG_MAX_SKEW, that is, by 100
microseconds.

Note that manually initialized uncertainty_margin fields are not adjusted,
but there is a WARN_ON_ONCE() that triggers if any such field is less than
twice WATCHDOG_MAX_SKEW.  This WARN_ON_ONCE() is intended to discourage
production use of the one-nanosecond uncertainty_margin values that are
used to test the clock-skew code itself.

The actual clock-skew check uses the sum of the uncertainty_margin fields
of the two clocksource structures being compared.  Integer overflow is
avoided because the largest computed value of the uncertainty_margin
fields is one billion (10^9), and double that value fits into an
unsigned int.  However, if someone manually specifies (say) UINT_MAX,
they will get what they deserve.

Note that the refined_jiffies uncertainty_margin field is initialized to
TICK_NSEC, which means that skew checks involving this clocksource will
be sufficently forgiving.  In a similar vein, the clocksource_tsc_early
uncertainty_margin field is initialized to 32*NSEC_PER_MSEC, which
replicates the current behavior and allows custom setting if needed
in order to address the rare skews detected for this clocksource in
current mainline.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Feng Tang <feng.tang@intel.com>
Link: https://lore.kernel.org/r/20210527190124.440372-4-paulmck@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/tsc.c       |  1 +
 include/linux/clocksource.h |  3 +++
 kernel/time/clocksource.c   | 48 +++++++++++++++++++++++++++++--------
 kernel/time/jiffies.c       | 15 ++++++------
 4 files changed, 50 insertions(+), 17 deletions(-)

diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index f9f1b45e5ddc4..13d1a0ac8916a 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1127,6 +1127,7 @@ static int tsc_cs_enable(struct clocksource *cs)
 static struct clocksource clocksource_tsc_early = {
 	.name			= "tsc-early",
 	.rating			= 299,
+	.uncertainty_margin	= 32 * NSEC_PER_MSEC,
 	.read			= read_tsc,
 	.mask			= CLOCKSOURCE_MASK(64),
 	.flags			= CLOCK_SOURCE_IS_CONTINUOUS |
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 83a3ebff74560..8f87c1a6f3231 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -42,6 +42,8 @@ struct module;
  * @shift:		Cycle to nanosecond divisor (power of two)
  * @max_idle_ns:	Maximum idle time permitted by the clocksource (nsecs)
  * @maxadj:		Maximum adjustment value to mult (~11%)
+ * @uncertainty_margin:	Maximum uncertainty in nanoseconds per half second.
+ *			Zero says to use default WATCHDOG_THRESHOLD.
  * @archdata:		Optional arch-specific data
  * @max_cycles:		Maximum safe cycle value which won't overflow on
  *			multiplication
@@ -93,6 +95,7 @@ struct clocksource {
 	u32			shift;
 	u64			max_idle_ns;
 	u32			maxadj;
+	u32			uncertainty_margin;
 #ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
 	struct arch_clocksource_data archdata;
 #endif
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 74492f08660c4..d0803a69a2009 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -93,6 +93,20 @@ static char override_name[CS_NAME_LEN];
 static int finished_booting;
 static u64 suspend_start;
 
+/*
+ * Threshold: 0.0312s, when doubled: 0.0625s.
+ * Also a default for cs->uncertainty_margin when registering clocks.
+ */
+#define WATCHDOG_THRESHOLD (NSEC_PER_SEC >> 5)
+
+/*
+ * Maximum permissible delay between two readouts of the watchdog
+ * clocksource surrounding a read of the clocksource being validated.
+ * This delay could be due to SMIs, NMIs, or to VCPU preemptions.  Used as
+ * a lower bound for cs->uncertainty_margin values when registering clocks.
+ */
+#define WATCHDOG_MAX_SKEW (50 * NSEC_PER_USEC)
+
 #ifdef CONFIG_CLOCKSOURCE_WATCHDOG
 static void clocksource_watchdog_work(struct work_struct *work);
 static void clocksource_select(void);
@@ -119,17 +133,9 @@ static int clocksource_watchdog_kthread(void *data);
 static void __clocksource_change_rating(struct clocksource *cs, int rating);
 
 /*
- * Interval: 0.5sec Threshold: 0.0625s
+ * Interval: 0.5sec.
  */
 #define WATCHDOG_INTERVAL (HZ >> 1)
-#define WATCHDOG_THRESHOLD (NSEC_PER_SEC >> 4)
-
-/*
- * Maximum permissible delay between two readouts of the watchdog
- * clocksource surrounding a read of the clocksource being validated.
- * This delay could be due to SMIs, NMIs, or to VCPU preemptions.
- */
-#define WATCHDOG_MAX_SKEW (100 * NSEC_PER_USEC)
 
 static void clocksource_watchdog_work(struct work_struct *work)
 {
@@ -284,6 +290,7 @@ static void clocksource_watchdog(struct timer_list *unused)
 	int next_cpu, reset_pending;
 	int64_t wd_nsec, cs_nsec;
 	struct clocksource *cs;
+	u32 md;
 
 	spin_lock(&watchdog_lock);
 	if (!watchdog_running)
@@ -330,7 +337,8 @@ static void clocksource_watchdog(struct timer_list *unused)
 			continue;
 
 		/* Check the deviation from the watchdog clocksource. */
-		if (abs(cs_nsec - wd_nsec) > WATCHDOG_THRESHOLD) {
+		md = cs->uncertainty_margin + watchdog->uncertainty_margin;
+		if (abs(cs_nsec - wd_nsec) > md) {
 			pr_warn("timekeeping watchdog on CPU%d: Marking clocksource '%s' as unstable because the skew is too large:\n",
 				smp_processor_id(), cs->name);
 			pr_warn("                      '%s' wd_now: %llx wd_last: %llx mask: %llx\n",
@@ -985,6 +993,26 @@ void __clocksource_update_freq_scale(struct clocksource *cs, u32 scale, u32 freq
 		clocks_calc_mult_shift(&cs->mult, &cs->shift, freq,
 				       NSEC_PER_SEC / scale, sec * scale);
 	}
+
+	/*
+	 * If the uncertainty margin is not specified, calculate it.
+	 * If both scale and freq are non-zero, calculate the clock
+	 * period, but bound below at 2*WATCHDOG_MAX_SKEW.  However,
+	 * if either of scale or freq is zero, be very conservative and
+	 * take the tens-of-milliseconds WATCHDOG_THRESHOLD value for the
+	 * uncertainty margin.  Allow stupidly small uncertainty margins
+	 * to be specified by the caller for testing purposes, but warn
+	 * to discourage production use of this capability.
+	 */
+	if (scale && freq && !cs->uncertainty_margin) {
+		cs->uncertainty_margin = NSEC_PER_SEC / (scale * freq);
+		if (cs->uncertainty_margin < 2 * WATCHDOG_MAX_SKEW)
+			cs->uncertainty_margin = 2 * WATCHDOG_MAX_SKEW;
+	} else if (!cs->uncertainty_margin) {
+		cs->uncertainty_margin = WATCHDOG_THRESHOLD;
+	}
+	WARN_ON_ONCE(cs->uncertainty_margin < 2 * WATCHDOG_MAX_SKEW);
+
 	/*
 	 * Ensure clocksources that have large 'mult' values don't overflow
 	 * when adjusted.
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index eddcf49704445..65409abcca8e1 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -49,13 +49,14 @@ static u64 jiffies_read(struct clocksource *cs)
  * for "tick-less" systems.
  */
 static struct clocksource clocksource_jiffies = {
-	.name		= "jiffies",
-	.rating		= 1, /* lowest valid rating*/
-	.read		= jiffies_read,
-	.mask		= CLOCKSOURCE_MASK(32),
-	.mult		= TICK_NSEC << JIFFIES_SHIFT, /* details above */
-	.shift		= JIFFIES_SHIFT,
-	.max_cycles	= 10,
+	.name			= "jiffies",
+	.rating			= 1, /* lowest valid rating*/
+	.uncertainty_margin	= 32 * NSEC_PER_MSEC,
+	.read			= jiffies_read,
+	.mask			= CLOCKSOURCE_MASK(32),
+	.mult			= TICK_NSEC << JIFFIES_SHIFT, /* details above */
+	.shift			= JIFFIES_SHIFT,
+	.max_cycles		= 10,
 };
 
 __cacheline_aligned_in_smp DEFINE_RAW_SPINLOCK(jiffies_lock);
-- 
GitLab


From fd99aeb978451eee9e623be496cd6f9bbbc95e37 Mon Sep 17 00:00:00 2001
From: Waiman Long <longman@redhat.com>
Date: Thu, 18 Nov 2021 14:14:36 -0500
Subject: [PATCH 3125/4878] clocksource: Avoid accidental unstable marking of
 clocksources

[ Upstream commit c86ff8c55b8ae68837b2fa59dc0c203907e9a15f ]

Since commit db3a34e17433 ("clocksource: Retry clock read if long delays
detected") and commit 2e27e793e280 ("clocksource: Reduce clocksource-skew
threshold"), it is found that tsc clocksource fallback to hpet can
sometimes happen on both Intel and AMD systems especially when they are
running stressful benchmarking workloads. Of the 23 systems tested with
a v5.14 kernel, 10 of them have switched to hpet clock source during
the test run.

The result of falling back to hpet is a drastic reduction of performance
when running benchmarks. For example, the fio performance tests can
drop up to 70% whereas the iperf3 performance can drop up to 80%.

4 hpet fallbacks happened during bootup. They were:

  [    8.749399] clocksource: timekeeping watchdog on CPU13: hpet read-back delay of 263750ns, attempt 4, marking unstable
  [   12.044610] clocksource: timekeeping watchdog on CPU19: hpet read-back delay of 186166ns, attempt 4, marking unstable
  [   17.336941] clocksource: timekeeping watchdog on CPU28: hpet read-back delay of 182291ns, attempt 4, marking unstable
  [   17.518565] clocksource: timekeeping watchdog on CPU34: hpet read-back delay of 252196ns, attempt 4, marking unstable

Other fallbacks happen when the systems were running stressful
benchmarks. For example:

  [ 2685.867873] clocksource: timekeeping watchdog on CPU117: hpet read-back delay of 57269ns, attempt 4, marking unstable
  [46215.471228] clocksource: timekeeping watchdog on CPU8: hpet read-back delay of 61460ns, attempt 4, marking unstable

Commit 2e27e793e280 ("clocksource: Reduce clocksource-skew threshold"),
changed the skew margin from 100us to 50us. I think this is too small
and can easily be exceeded when running some stressful workloads on a
thermally stressed system.  So it is switched back to 100us.

Even a maximum skew margin of 100us may be too small in for some systems
when booting up especially if those systems are under thermal stress. To
eliminate the case that the large skew is due to the system being too
busy slowing down the reading of both the watchdog and the clocksource,
an extra consecutive read of watchdog clock is being done to check this.

The consecutive watchdog read delay is compared against
WATCHDOG_MAX_SKEW/2. If the delay exceeds the limit, we assume that
the system is just too busy. A warning will be printed to the console
and the clock skew check is skipped for this round.

Fixes: db3a34e17433 ("clocksource: Retry clock read if long delays detected")
Fixes: 2e27e793e280 ("clocksource: Reduce clocksource-skew threshold")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/time/clocksource.c | 50 ++++++++++++++++++++++++++++++++-------
 1 file changed, 41 insertions(+), 9 deletions(-)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index d0803a69a2009..e34ceb91f4c5a 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -105,7 +105,7 @@ static u64 suspend_start;
  * This delay could be due to SMIs, NMIs, or to VCPU preemptions.  Used as
  * a lower bound for cs->uncertainty_margin values when registering clocks.
  */
-#define WATCHDOG_MAX_SKEW (50 * NSEC_PER_USEC)
+#define WATCHDOG_MAX_SKEW (100 * NSEC_PER_USEC)
 
 #ifdef CONFIG_CLOCKSOURCE_WATCHDOG
 static void clocksource_watchdog_work(struct work_struct *work);
@@ -200,17 +200,24 @@ void clocksource_mark_unstable(struct clocksource *cs)
 static ulong max_cswd_read_retries = 3;
 module_param(max_cswd_read_retries, ulong, 0644);
 
-static bool cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
+enum wd_read_status {
+	WD_READ_SUCCESS,
+	WD_READ_UNSTABLE,
+	WD_READ_SKIP
+};
+
+static enum wd_read_status cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
 {
 	unsigned int nretries;
-	u64 wd_end, wd_delta;
-	int64_t wd_delay;
+	u64 wd_end, wd_end2, wd_delta;
+	int64_t wd_delay, wd_seq_delay;
 
 	for (nretries = 0; nretries <= max_cswd_read_retries; nretries++) {
 		local_irq_disable();
 		*wdnow = watchdog->read(watchdog);
 		*csnow = cs->read(cs);
 		wd_end = watchdog->read(watchdog);
+		wd_end2 = watchdog->read(watchdog);
 		local_irq_enable();
 
 		wd_delta = clocksource_delta(wd_end, *wdnow, watchdog->mask);
@@ -221,13 +228,34 @@ static bool cs_watchdog_read(struct clocksource *cs, u64 *csnow, u64 *wdnow)
 				pr_warn("timekeeping watchdog on CPU%d: %s retried %d times before success\n",
 					smp_processor_id(), watchdog->name, nretries);
 			}
-			return true;
+			return WD_READ_SUCCESS;
 		}
+
+		/*
+		 * Now compute delay in consecutive watchdog read to see if
+		 * there is too much external interferences that cause
+		 * significant delay in reading both clocksource and watchdog.
+		 *
+		 * If consecutive WD read-back delay > WATCHDOG_MAX_SKEW/2,
+		 * report system busy, reinit the watchdog and skip the current
+		 * watchdog test.
+		 */
+		wd_delta = clocksource_delta(wd_end2, wd_end, watchdog->mask);
+		wd_seq_delay = clocksource_cyc2ns(wd_delta, watchdog->mult, watchdog->shift);
+		if (wd_seq_delay > WATCHDOG_MAX_SKEW/2)
+			goto skip_test;
 	}
 
 	pr_warn("timekeeping watchdog on CPU%d: %s read-back delay of %lldns, attempt %d, marking unstable\n",
 		smp_processor_id(), watchdog->name, wd_delay, nretries);
-	return false;
+	return WD_READ_UNSTABLE;
+
+skip_test:
+	pr_info("timekeeping watchdog on CPU%d: %s wd-wd read-back delay of %lldns\n",
+		smp_processor_id(), watchdog->name, wd_seq_delay);
+	pr_info("wd-%s-wd read-back delay of %lldns, clock-skew test skipped!\n",
+		cs->name, wd_delay);
+	return WD_READ_SKIP;
 }
 
 static u64 csnow_mid;
@@ -290,6 +318,7 @@ static void clocksource_watchdog(struct timer_list *unused)
 	int next_cpu, reset_pending;
 	int64_t wd_nsec, cs_nsec;
 	struct clocksource *cs;
+	enum wd_read_status read_ret;
 	u32 md;
 
 	spin_lock(&watchdog_lock);
@@ -307,9 +336,12 @@ static void clocksource_watchdog(struct timer_list *unused)
 			continue;
 		}
 
-		if (!cs_watchdog_read(cs, &csnow, &wdnow)) {
-			/* Clock readout unreliable, so give it up. */
-			__clocksource_unstable(cs);
+		read_ret = cs_watchdog_read(cs, &csnow, &wdnow);
+
+		if (read_ret != WD_READ_SUCCESS) {
+			if (read_ret == WD_READ_UNSTABLE)
+				/* Clock readout unreliable, so give it up. */
+				__clocksource_unstable(cs);
 			continue;
 		}
 
-- 
GitLab


From bcd533417fd0f80041cb9866946bfec76b784ffc Mon Sep 17 00:00:00 2001
From: Bixuan Cui <cuibixuan@linux.alibaba.com>
Date: Wed, 1 Dec 2021 16:58:54 +0800
Subject: [PATCH 3126/4878] ALSA: oss: fix compile error when OSS_DEBUG is
 enabled

[ Upstream commit 8e7daf318d97f25e18b2fc7eb5909e34cd903575 ]

Fix compile error when OSS_DEBUG is enabled:
    sound/core/oss/pcm_oss.c: In function 'snd_pcm_oss_set_trigger':
    sound/core/oss/pcm_oss.c:2055:10: error: 'substream' undeclared (first
    use in this function); did you mean 'csubstream'?
      pcm_dbg(substream->pcm, "pcm_oss: trigger = 0x%x\n", trigger);
              ^

Fixes: 61efcee8608c ("ALSA: oss: Use standard printk helpers")
Signed-off-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Link: https://lore.kernel.org/r/1638349134-110369-1-git-send-email-cuibixuan@linux.alibaba.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/core/oss/pcm_oss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 77727a69c3c4e..d79febeebf0c5 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -2056,7 +2056,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr
 	int err, cmd;
 
 #ifdef OSS_DEBUG
-	pcm_dbg(substream->pcm, "pcm_oss: trigger = 0x%x\n", trigger);
+	pr_debug("pcm_oss: trigger = 0x%x\n", trigger);
 #endif
 	
 	psubstream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK];
-- 
GitLab


From 8937aee4c0fa9f57e0afe7d0b4ca5bf1cd4c5cd9 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 2 Dec 2021 09:38:33 +0100
Subject: [PATCH 3127/4878] ALSA: usb-audio: Drop superfluous '0' in Presonus
 Studio 1810c's ID

[ Upstream commit 1e583aef12aa74afd37c1418255cc4b74e023236 ]

The vendor ID of Presonus Studio 1810c had a superfluous '0' in its
USB ID.  Drop it.

Fixes: 8dc5efe3d17c ("ALSA: usb-audio: Add support for Presonus Studio 1810c")
Link: https://lore.kernel.org/r/20211202083833.17784-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/format.c       | 2 +-
 sound/usb/mixer_quirks.c | 2 +-
 sound/usb/quirks.c       | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/usb/format.c b/sound/usb/format.c
index 4693384db0695..e8a63ea2189d1 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -365,7 +365,7 @@ static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip,
 		for (rate = min; rate <= max; rate += res) {
 
 			/* Filter out invalid rates on Presonus Studio 1810c */
-			if (chip->usb_id == USB_ID(0x0194f, 0x010c) &&
+			if (chip->usb_id == USB_ID(0x194f, 0x010c) &&
 			    !s1810c_valid_sample_rate(fp, rate))
 				goto skip_rate;
 
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 8297117f4766e..86fdd669f3fd7 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -3033,7 +3033,7 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 		err = snd_rme_controls_create(mixer);
 		break;
 
-	case USB_ID(0x0194f, 0x010c): /* Presonus Studio 1810c */
+	case USB_ID(0x194f, 0x010c): /* Presonus Studio 1810c */
 		err = snd_sc1810_init_mixer(mixer);
 		break;
 	case USB_ID(0x2a39, 0x3fb0): /* RME Babyface Pro FS */
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 75d4d317b34b6..6333a2ecb848a 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1310,7 +1310,7 @@ int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip,
 	if (chip->usb_id == USB_ID(0x0763, 0x2012))
 		return fasttrackpro_skip_setting_quirk(chip, iface, altno);
 	/* presonus studio 1810c: skip altsets incompatible with device_setup */
-	if (chip->usb_id == USB_ID(0x0194f, 0x010c))
+	if (chip->usb_id == USB_ID(0x194f, 0x010c))
 		return s1810c_skip_setting_quirk(chip, iface, altno);
 
 
-- 
GitLab


From 88ddf033a5e480de17a914eaf26262e73aa5b5d0 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Fri, 3 Dec 2021 00:42:06 -0800
Subject: [PATCH 3128/4878] char/mwave: Adjust io port register size

[ Upstream commit f5912cc19acd7c24b2dbf65a6340bf194244f085 ]

Using MKWORD() on a byte-sized variable results in OOB read. Expand the
size of the reserved area so both MKWORD and MKBYTE continue to work
without overflow. Silences this warning on a -Warray-bounds build:

drivers/char/mwave/3780i.h:346:22: error: array subscript 'short unsigned int[0]' is partly outside array bounds of 'DSP_ISA_SLAVE_CONTROL[1]' [-Werror=array-bounds]
  346 | #define MKWORD(var) (*((unsigned short *)(&var)))
      |                     ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/char/mwave/3780i.h:356:40: note: in definition of macro 'OutWordDsp'
  356 | #define OutWordDsp(index,value)   outw(value,usDspBaseIO+index)
      |                                        ^~~~~
drivers/char/mwave/3780i.c:373:41: note: in expansion of macro 'MKWORD'
  373 |         OutWordDsp(DSP_IsaSlaveControl, MKWORD(rSlaveControl));
      |                                         ^~~~~~
drivers/char/mwave/3780i.c:358:31: note: while referencing 'rSlaveControl'
  358 |         DSP_ISA_SLAVE_CONTROL rSlaveControl;
      |                               ^~~~~~~~~~~~~

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20211203084206.3104326-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/mwave/3780i.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/mwave/3780i.h b/drivers/char/mwave/3780i.h
index 9ccb6b270b071..95164246afd1a 100644
--- a/drivers/char/mwave/3780i.h
+++ b/drivers/char/mwave/3780i.h
@@ -68,7 +68,7 @@ typedef struct {
 	unsigned char ClockControl:1;	/* RW: Clock control: 0=normal, 1=stop 3780i clocks */
 	unsigned char SoftReset:1;	/* RW: Soft reset 0=normal, 1=soft reset active */
 	unsigned char ConfigMode:1;	/* RW: Configuration mode, 0=normal, 1=config mode */
-	unsigned char Reserved:5;	/* 0: Reserved */
+	unsigned short Reserved:13;	/* 0: Reserved */
 } DSP_ISA_SLAVE_CONTROL;
 
 
-- 
GitLab


From 551a785c26f6ff41cccd527e7bd9f032f91332c2 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Tue, 30 Nov 2021 10:51:49 -0800
Subject: [PATCH 3129/4878] binder: fix handling of error during copy

[ Upstream commit fe6b1869243f23a485a106c214bcfdc7aa0ed593 ]

If a memory copy function fails to copy the whole buffer,
a positive integar with the remaining bytes is returned.
In binder_translate_fd_array() this can result in an fd being
skipped due to the failed copy, but the loop continues
processing fds since the early return condition expects a
negative integer on error.

Fix by returning "ret > 0 ? -EINVAL : ret" to handle this case.

Fixes: bb4a2e48d510 ("binder: return errors from buffer copy functions")
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Link: https://lore.kernel.org/r/20211130185152.437403-2-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/android/binder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 80e2bbb36422e..366b124057081 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2657,8 +2657,8 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
 		if (!ret)
 			ret = binder_translate_fd(fd, offset, t, thread,
 						  in_reply_to);
-		if (ret < 0)
-			return ret;
+		if (ret)
+			return ret > 0 ? -EINVAL : ret;
 	}
 	return 0;
 }
-- 
GitLab


From e9e4d1fb4590956add5cc4cd01b6d471f4475489 Mon Sep 17 00:00:00 2001
From: Stafford Horne <shorne@gmail.com>
Date: Sat, 4 Dec 2021 07:10:18 +0900
Subject: [PATCH 3130/4878] openrisc: Add clone3 ABI wrapper

[ Upstream commit 433fe39f674d58bc7a3e8254a5d2ffc290b7e04e ]

Like fork and clone the clone3 syscall needs a wrapper to save callee
saved registers, which is required by the OpenRISC ABI.  This came up
after auditing code following a discussion with Rob Landley and Arnd
Bergmann [0].

Tested with the clone3 kselftests and there were no issues.

[0] https://lore.kernel.org/all/41206fc7-f8ce-98aa-3718-ba3e1431e320@landley.net/T/#m9c0cdb2703813b9df4da04cf6b30de1f1aa89944

Fixes: 07e83dfbe16c ("openrisc: Enable the clone3 syscall")
Cc: Rob Landley <rob@landley.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/openrisc/include/asm/syscalls.h | 2 ++
 arch/openrisc/kernel/entry.S         | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/arch/openrisc/include/asm/syscalls.h b/arch/openrisc/include/asm/syscalls.h
index 3a7eeae6f56a8..aa1c7e98722e3 100644
--- a/arch/openrisc/include/asm/syscalls.h
+++ b/arch/openrisc/include/asm/syscalls.h
@@ -22,9 +22,11 @@ asmlinkage long sys_or1k_atomic(unsigned long type, unsigned long *v1,
 
 asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,
 			void __user *parent_tid, void __user *child_tid, int tls);
+asmlinkage long __sys_clone3(struct clone_args __user *uargs, size_t size);
 asmlinkage long __sys_fork(void);
 
 #define sys_clone __sys_clone
+#define sys_clone3 __sys_clone3
 #define sys_fork __sys_fork
 
 #endif /* __ASM_OPENRISC_SYSCALLS_H */
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index 98e4f97db5159..b42d32d79b2e6 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -1170,6 +1170,11 @@ ENTRY(__sys_clone)
 	l.j	_fork_save_extra_regs_and_call
 	 l.nop
 
+ENTRY(__sys_clone3)
+	l.movhi	r29,hi(sys_clone3)
+	l.j	_fork_save_extra_regs_and_call
+	 l.ori	r29,r29,lo(sys_clone3)
+
 ENTRY(__sys_fork)
 	l.movhi	r29,hi(sys_fork)
 	l.ori	r29,r29,lo(sys_fork)
-- 
GitLab


From ed43b2e048fec0d206734d46e294cdcf84f6b339 Mon Sep 17 00:00:00 2001
From: Hector Martin <marcan@marcan.st>
Date: Sat, 20 Nov 2021 12:13:43 +0900
Subject: [PATCH 3131/4878] iommu/io-pgtable-arm: Fix table descriptor paddr
 formatting

[ Upstream commit 9abe2ac834851a7d0b0756e295cf7a292c45ca53 ]

Table descriptors were being installed without properly formatting the
address using paddr_to_iopte, which does not match up with the
iopte_deref in __arm_lpae_map. This is incorrect for the LPAE pte
format, as it does not handle the high bits properly.

This was found on Apple T6000 DARTs, which require a new pte format
(different shift); adding support for that to
paddr_to_iopte/iopte_to_paddr caused it to break badly, as even <48-bit
addresses would end up incorrect in that case.

Fixes: 6c89928ff7a0 ("iommu/io-pgtable-arm: Support 52-bit physical address")
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Hector Martin <marcan@marcan.st>
Link: https://lore.kernel.org/r/20211120031343.88034-1-marcan@marcan.st
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/io-pgtable-arm.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index bcfbd0e44a4a0..e1cd31c0e3c19 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -302,11 +302,12 @@ static int arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
 static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
 					     arm_lpae_iopte *ptep,
 					     arm_lpae_iopte curr,
-					     struct io_pgtable_cfg *cfg)
+					     struct arm_lpae_io_pgtable *data)
 {
 	arm_lpae_iopte old, new;
+	struct io_pgtable_cfg *cfg = &data->iop.cfg;
 
-	new = __pa(table) | ARM_LPAE_PTE_TYPE_TABLE;
+	new = paddr_to_iopte(__pa(table), data) | ARM_LPAE_PTE_TYPE_TABLE;
 	if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
 		new |= ARM_LPAE_PTE_NSTABLE;
 
@@ -357,7 +358,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
 		if (!cptep)
 			return -ENOMEM;
 
-		pte = arm_lpae_install_table(cptep, ptep, 0, cfg);
+		pte = arm_lpae_install_table(cptep, ptep, 0, data);
 		if (pte)
 			__arm_lpae_free_pages(cptep, tblsz, cfg);
 	} else if (!cfg->coherent_walk && !(pte & ARM_LPAE_PTE_SW_SYNC)) {
@@ -546,7 +547,7 @@ static size_t arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
 		__arm_lpae_init_pte(data, blk_paddr, pte, lvl, &tablep[i]);
 	}
 
-	pte = arm_lpae_install_table(tablep, ptep, blk_pte, cfg);
+	pte = arm_lpae_install_table(tablep, ptep, blk_pte, data);
 	if (pte != blk_pte) {
 		__arm_lpae_free_pages(tablep, tablesz, cfg);
 		/*
-- 
GitLab


From e19469468b7bebe3c5c3e1da348fb66adcdf510c Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 3 Dec 2021 15:19:39 -0800
Subject: [PATCH 3132/4878] scsi: ufs: Fix race conditions related to driver
 data

[ Upstream commit 21ad0e49085deb22c094f91f9da57319a97188e4 ]

The driver data pointer must be set before any callbacks are registered
that use that pointer. Hence move the initialization of that pointer from
after the ufshcd_init() call to inside ufshcd_init().

Link: https://lore.kernel.org/r/20211203231950.193369-7-bvanassche@acm.org
Fixes: 3b1d05807a9a ("[SCSI] ufs: Segregate PCI Specific Code")
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/tc-dwc-g210-pci.c | 1 -
 drivers/scsi/ufs/ufshcd-pci.c      | 2 --
 drivers/scsi/ufs/ufshcd-pltfrm.c   | 2 --
 drivers/scsi/ufs/ufshcd.c          | 7 +++++++
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/ufs/tc-dwc-g210-pci.c b/drivers/scsi/ufs/tc-dwc-g210-pci.c
index 67a6a61154b71..4e471484539d2 100644
--- a/drivers/scsi/ufs/tc-dwc-g210-pci.c
+++ b/drivers/scsi/ufs/tc-dwc-g210-pci.c
@@ -135,7 +135,6 @@ tc_dwc_g210_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return err;
 	}
 
-	pci_set_drvdata(pdev, hba);
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_allow(&pdev->dev);
 
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index fadd566025b86..4bf8ec88676ee 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -347,8 +347,6 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return err;
 	}
 
-	pci_set_drvdata(pdev, hba);
-
 	hba->vops = (struct ufs_hba_variant_ops *)id->driver_data;
 
 	err = ufshcd_init(hba, mmio_base, pdev->irq);
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 8c92d1bde64be..e49505534d498 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -412,8 +412,6 @@ int ufshcd_pltfrm_init(struct platform_device *pdev,
 		goto dealloc_host;
 	}
 
-	platform_set_drvdata(pdev, hba);
-
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e3a9a02cadf5a..bf302776340ce 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -9085,6 +9085,13 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	struct device *dev = hba->dev;
 	char eh_wq_name[sizeof("ufs_eh_wq_00")];
 
+	/*
+	 * dev_set_drvdata() must be called before any callbacks are registered
+	 * that use dev_get_drvdata() (frequency scaling, clock scaling, hwmon,
+	 * sysfs).
+	 */
+	dev_set_drvdata(dev, hba);
+
 	if (!mmio_base) {
 		dev_err(hba->dev,
 		"Invalid memory reference for mmio_base is NULL\n");
-- 
GitLab


From 7be2a0bcaf8e83f9a5eb47f98ad954d665c82dfd Mon Sep 17 00:00:00 2001
From: Kamal Heib <kamalheib1@gmail.com>
Date: Mon, 6 Dec 2021 22:13:14 +0200
Subject: [PATCH 3133/4878] RDMA/qedr: Fix reporting max_{send/recv}_wr attrs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit b1a4da64bfc189510e08df1ccb1c589e667dc7a3 ]

Fix the wrongly reported max_send_wr and max_recv_wr attributes for user
QP by making sure to save their valuse on QP creation, so when query QP is
called the attributes will be reported correctly.

Fixes: cecbcddf6461 ("qedr: Add support for QP verbs")
Link: https://lore.kernel.org/r/20211206201314.124947-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Acked-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/qedr/verbs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c
index 16d5283651894..eeb87f31cd252 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -1918,6 +1918,7 @@ static int qedr_create_user_qp(struct qedr_dev *dev,
 	/* db offset was calculated in copy_qp_uresp, now set in the user q */
 	if (qedr_qp_has_sq(qp)) {
 		qp->usq.db_addr = ctx->dpi_addr + uresp.sq_db_offset;
+		qp->sq.max_wr = attrs->cap.max_send_wr;
 		rc = qedr_db_recovery_add(dev, qp->usq.db_addr,
 					  &qp->usq.db_rec_data->db_data,
 					  DB_REC_WIDTH_32B,
@@ -1928,6 +1929,7 @@ static int qedr_create_user_qp(struct qedr_dev *dev,
 
 	if (qedr_qp_has_rq(qp)) {
 		qp->urq.db_addr = ctx->dpi_addr + uresp.rq_db_offset;
+		qp->rq.max_wr = attrs->cap.max_recv_wr;
 		rc = qedr_db_recovery_add(dev, qp->urq.db_addr,
 					  &qp->urq.db_rec_data->db_data,
 					  DB_REC_WIDTH_32B,
-- 
GitLab


From 8b3783e517f63443c3f2c1413c71866eab66ae74 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 6 Dec 2021 23:27:26 +0100
Subject: [PATCH 3134/4878] PCI/MSI: Fix
 pci_irq_vector()/pci_irq_get_affinity()

[ Upstream commit 29bbc35e29d9b6347780dcacde2deb4b39344167 ]

pci_irq_vector() and pci_irq_get_affinity() use the list position to find the
MSI-X descriptor at a given index. That's correct for the normal case where
the entry number is the same as the list position.

But it's wrong for cases where MSI-X was allocated with an entries array
describing sparse entry numbers into the hardware message descriptor
table. That's inconsistent at best.

Make it always check the entry number because that's what the zero base
index really means. This change won't break existing users which use a
sparse entries array for allocation because these users retrieve the Linux
interrupt number from the entries array after allocation and none of them
uses pci_irq_vector() or pci_irq_get_affinity().

Fixes: aff171641d18 ("PCI: Provide sensible IRQ vector alloc/free routines")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20211206210223.929792157@linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/msi.c | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 57314fec2261b..3da69b26e6743 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1291,19 +1291,24 @@ EXPORT_SYMBOL(pci_free_irq_vectors);
 
 /**
  * pci_irq_vector - return Linux IRQ number of a device vector
- * @dev: PCI device to operate on
- * @nr: device-relative interrupt vector index (0-based).
+ * @dev:	PCI device to operate on
+ * @nr:		Interrupt vector index (0-based)
+ *
+ * @nr has the following meanings depending on the interrupt mode:
+ *   MSI-X:	The index in the MSI-X vector table
+ *   MSI:	The index of the enabled MSI vectors
+ *   INTx:	Must be 0
+ *
+ * Return: The Linux interrupt number or -EINVAl if @nr is out of range.
  */
 int pci_irq_vector(struct pci_dev *dev, unsigned int nr)
 {
 	if (dev->msix_enabled) {
 		struct msi_desc *entry;
-		int i = 0;
 
 		for_each_pci_msi_entry(entry, dev) {
-			if (i == nr)
+			if (entry->msi_attrib.entry_nr == nr)
 				return entry->irq;
-			i++;
 		}
 		WARN_ON_ONCE(1);
 		return -EINVAL;
@@ -1327,17 +1332,22 @@ EXPORT_SYMBOL(pci_irq_vector);
  * pci_irq_get_affinity - return the affinity of a particular MSI vector
  * @dev:	PCI device to operate on
  * @nr:		device-relative interrupt vector index (0-based).
+ *
+ * @nr has the following meanings depending on the interrupt mode:
+ *   MSI-X:	The index in the MSI-X vector table
+ *   MSI:	The index of the enabled MSI vectors
+ *   INTx:	Must be 0
+ *
+ * Return: A cpumask pointer or NULL if @nr is out of range
  */
 const struct cpumask *pci_irq_get_affinity(struct pci_dev *dev, int nr)
 {
 	if (dev->msix_enabled) {
 		struct msi_desc *entry;
-		int i = 0;
 
 		for_each_pci_msi_entry(entry, dev) {
-			if (i == nr)
+			if (entry->msi_attrib.entry_nr == nr)
 				return &entry->affinity->mask;
-			i++;
 		}
 		WARN_ON_ONCE(1);
 		return NULL;
-- 
GitLab


From d77916df161b9eb857ab600a2cc35c0168b490c2 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Wed, 8 Dec 2021 17:36:52 +0000
Subject: [PATCH 3135/4878] powerpc/powermac: Add additional missing
 lockdep_register_key()

[ Upstream commit b149d5d45ac9171ed699a256f026c8ebef901112 ]

Commit df1f679d19ed ("powerpc/powermac: Add missing
lockdep_register_key()") fixed a problem that was causing a WARNING.

There are two other places in the same file with the same problem
originating from commit 9e607f72748d ("i2c_powermac: shut up lockdep
warning").

Add missing lockdep_register_key()

Fixes: 9e607f72748d ("i2c_powermac: shut up lockdep warning")
Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Depends-on: df1f679d19ed ("powerpc/powermac: Add missing lockdep_register_key()")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200055
Link: https://lore.kernel.org/r/2c7e421874e21b2fb87813d768cf662f630c2ad4.1638984999.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/powermac/low_i2c.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index f77a59b5c2e1a..09bfe4b8f25aa 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -810,6 +810,7 @@ static void __init pmu_i2c_probe(void)
 		bus->hostdata = bus + 1;
 		bus->xfer = pmu_i2c_xfer;
 		mutex_init(&bus->mutex);
+		lockdep_register_key(&bus->lock_key);
 		lockdep_set_class(&bus->mutex, &bus->lock_key);
 		bus->flags = pmac_i2c_multibus;
 		list_add(&bus->link, &pmac_i2c_busses);
@@ -933,6 +934,7 @@ static void __init smu_i2c_probe(void)
 		bus->hostdata = bus + 1;
 		bus->xfer = smu_i2c_xfer;
 		mutex_init(&bus->mutex);
+		lockdep_register_key(&bus->lock_key);
 		lockdep_set_class(&bus->mutex, &bus->lock_key);
 		bus->flags = 0;
 		list_add(&bus->link, &pmac_i2c_busses);
-- 
GitLab


From 2432d325f9466101a1c91e4350ea96cda8c46ecc Mon Sep 17 00:00:00 2001
From: Avihai Horon <avihaih@nvidia.com>
Date: Thu, 9 Dec 2021 15:16:06 +0200
Subject: [PATCH 3136/4878] RDMA/core: Let ib_find_gid() continue search even
 after empty entry

[ Upstream commit 483d805191a23191f8294bbf9b4e94836f5d92e4 ]

Currently, ib_find_gid() will stop searching after encountering the first
empty GID table entry. This behavior is wrong since neither IB nor RoCE
spec enforce tightly packed GID tables.

For example, when a valid GID entry exists at index N, and if a GID entry
is empty at index N-1, ib_find_gid() will fail to find the valid entry.

Fix it by making ib_find_gid() continue searching even after encountering
missing entries.

Fixes: 5eb620c81ce3 ("IB/core: Add helpers for uncached GID and P_Key searches")
Link: https://lore.kernel.org/r/e55d331b96cecfc2cf19803d16e7109ea966882d.1639055490.git.leonro@nvidia.com
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 76b9c436edcd2..aa526c5ca0cf3 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -2411,7 +2411,8 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
 		     ++i) {
 			ret = rdma_query_gid(device, port, i, &tmp_gid);
 			if (ret)
-				return ret;
+				continue;
+
 			if (!memcmp(&tmp_gid, gid, sizeof *gid)) {
 				*port_num = port;
 				if (index)
-- 
GitLab


From 7c0d9c815ce87257e2eba1a346c27211e0867b81 Mon Sep 17 00:00:00 2001
From: Avihai Horon <avihaih@nvidia.com>
Date: Thu, 9 Dec 2021 15:16:07 +0200
Subject: [PATCH 3137/4878] RDMA/cma: Let cma_resolve_ib_dev() continue search
 even after empty entry

[ Upstream commit 20679094a0161c94faf77e373fa3f7428a8e14bd ]

Currently, when cma_resolve_ib_dev() searches for a matching GID it will
stop searching after encountering the first empty GID table entry. This
behavior is wrong since neither IB nor RoCE spec enforce tightly packed
GID tables.

For example, when the matching valid GID entry exists at index N, and if a
GID entry is empty at index N-1, cma_resolve_ib_dev() will fail to find
the matching valid entry.

Fix it by making cma_resolve_ib_dev() continue searching even after
encountering missing entries.

Fixes: f17df3b0dede ("RDMA/cma: Add support for AF_IB to rdma_resolve_addr()")
Link: https://lore.kernel.org/r/b7346307e3bb396c43d67d924348c6c496493991.1639055490.git.leonro@nvidia.com
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/cma.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 8e54184566f7f..4d4ba09f6cf93 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -775,6 +775,7 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv)
 	unsigned int p;
 	u16 pkey, index;
 	enum ib_port_state port_state;
+	int ret;
 	int i;
 
 	cma_dev = NULL;
@@ -793,9 +794,14 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv)
 
 			if (ib_get_cached_port_state(cur_dev->device, p, &port_state))
 				continue;
-			for (i = 0; !rdma_query_gid(cur_dev->device,
-						    p, i, &gid);
-			     i++) {
+
+			for (i = 0; i < cur_dev->device->port_data[p].immutable.gid_tbl_len;
+			     ++i) {
+				ret = rdma_query_gid(cur_dev->device, p, i,
+						     &gid);
+				if (ret)
+					continue;
+
 				if (!memcmp(&gid, dgid, sizeof(gid))) {
 					cma_dev = cur_dev;
 					sgid = gid;
-- 
GitLab


From 0e04518b1dd96d36571d5fafad4190890da9c503 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 15 Dec 2021 11:15:50 +0800
Subject: [PATCH 3138/4878] ASoC: rt5663: Handle device_property_read_u32_array
 error codes

[ Upstream commit 2167c0b205960607fb136b4bb3c556a62be1569a ]

The return value of device_property_read_u32_array() is not always 0.
To catch the exception in case that devm_kzalloc failed and the
rt5663->imp_table was NULL, which caused the failure of
device_property_read_u32_array.

Fixes: 450f0f6a8fb4 ("ASoC: rt5663: Add the manual offset field to compensate the DC offset")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211215031550.70702-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt5663.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c
index 619fb9a031e39..db8a41aaa3859 100644
--- a/sound/soc/codecs/rt5663.c
+++ b/sound/soc/codecs/rt5663.c
@@ -3461,6 +3461,7 @@ static void rt5663_calibrate(struct rt5663_priv *rt5663)
 static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev)
 {
 	int table_size;
+	int ret;
 
 	device_property_read_u32(dev, "realtek,dc_offset_l_manual",
 		&rt5663->pdata.dc_offset_l_manual);
@@ -3477,9 +3478,11 @@ static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev)
 		table_size = sizeof(struct impedance_mapping_table) *
 			rt5663->pdata.impedance_sensing_num;
 		rt5663->imp_table = devm_kzalloc(dev, table_size, GFP_KERNEL);
-		device_property_read_u32_array(dev,
+		ret = device_property_read_u32_array(dev,
 			"realtek,impedance_sensing_table",
 			(u32 *)rt5663->imp_table, table_size);
+		if (ret)
+			return ret;
 	}
 
 	return 0;
@@ -3504,8 +3507,11 @@ static int rt5663_i2c_probe(struct i2c_client *i2c,
 
 	if (pdata)
 		rt5663->pdata = *pdata;
-	else
-		rt5663_parse_dp(rt5663, &i2c->dev);
+	else {
+		ret = rt5663_parse_dp(rt5663, &i2c->dev);
+		if (ret)
+			return ret;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(rt5663->supplies); i++)
 		rt5663->supplies[i].supply = rt5663_supply_names[i];
-- 
GitLab


From 918105df78b7b1306a62fa61d091f4e538b13bc9 Mon Sep 17 00:00:00 2001
From: Jim Quinlan <jim2101024@gmail.com>
Date: Fri, 10 Dec 2021 13:46:35 -0500
Subject: [PATCH 3139/4878] of: unittest: fix warning on PowerPC frame size
 warning

[ Upstream commit a8d61a9112ad0c9216ab45d050991e07bc4f3408 ]

The struct device variable "dev_bogus" was triggering this warning
on a PowerPC build:

    drivers/of/unittest.c: In function 'of_unittest_dma_ranges_one.constprop':
    [...] >> The frame size of 1424 bytes is larger than 1024 bytes
             [-Wframe-larger-than=]

This variable is now dynamically allocated.

Fixes: e0d072782c734 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211210184636.7273-2-jim2101024@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/unittest.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 1d4b0b7d0cc10..a5c4c77b6f3e2 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -910,11 +910,18 @@ static void __init of_unittest_dma_ranges_one(const char *path,
 	if (!rc) {
 		phys_addr_t	paddr;
 		dma_addr_t	dma_addr;
-		struct device	dev_bogus;
+		struct device	*dev_bogus;
 
-		dev_bogus.dma_range_map = map;
-		paddr = dma_to_phys(&dev_bogus, expect_dma_addr);
-		dma_addr = phys_to_dma(&dev_bogus, expect_paddr);
+		dev_bogus = kzalloc(sizeof(struct device), GFP_KERNEL);
+		if (!dev_bogus) {
+			unittest(0, "kzalloc() failed\n");
+			kfree(map);
+			return;
+		}
+
+		dev_bogus->dma_range_map = map;
+		paddr = dma_to_phys(dev_bogus, expect_dma_addr);
+		dma_addr = phys_to_dma(dev_bogus, expect_paddr);
 
 		unittest(paddr == expect_paddr,
 			 "of_dma_get_range: wrong phys addr %pap (expecting %llx) on node %pOF\n",
@@ -924,6 +931,7 @@ static void __init of_unittest_dma_ranges_one(const char *path,
 			 &dma_addr, expect_dma_addr, np);
 
 		kfree(map);
+		kfree(dev_bogus);
 	}
 	of_node_put(np);
 #endif
-- 
GitLab


From dff359e04260110ac328c2bbdde3c1415f62b22f Mon Sep 17 00:00:00 2001
From: Frank Rowand <frank.rowand@sony.com>
Date: Sun, 12 Dec 2021 16:18:52 -0600
Subject: [PATCH 3140/4878] of: unittest: 64 bit dma address test requires arch
 support

[ Upstream commit 9fd4cf5d3571b27d746b8ead494a3f051485b679 ]

If an architecture does not support 64 bit dma addresses then testing
for an expected dma address >= 0x100000000 will fail.

Fixes: e0d072782c73 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211212221852.233295-1-frowand.list@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/unittest.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index a5c4c77b6f3e2..5407bbdb64395 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -941,8 +941,9 @@ static void __init of_unittest_parse_dma_ranges(void)
 {
 	of_unittest_dma_ranges_one("/testcase-data/address-tests/device@70000000",
 		0x0, 0x20000000);
-	of_unittest_dma_ranges_one("/testcase-data/address-tests/bus@80000000/device@1000",
-		0x100000000, 0x20000000);
+	if (IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT))
+		of_unittest_dma_ranges_one("/testcase-data/address-tests/bus@80000000/device@1000",
+			0x100000000, 0x20000000);
 	of_unittest_dma_ranges_one("/testcase-data/address-tests/pci@90000000",
 		0x80000000, 0x20000000);
 }
-- 
GitLab


From 51b8e814bcef7cea74560b4bd94e9b5777f591ab Mon Sep 17 00:00:00 2001
From: Dillon Min <dillon.minfei@gmail.com>
Date: Tue, 26 Oct 2021 15:11:21 +0800
Subject: [PATCH 3141/4878] clk: stm32: Fix ltdc's clock turn off by
 clk_disable_unused() after system enter shell

[ Upstream commit 6fc058a72f3b7b07fc4de6d66ad1f68951b00f6e ]

stm32's clk driver register two ltdc gate clk to clk core by
clk_hw_register_gate() and clk_hw_register_composite()

first: 'stm32f429_gates[]', clk name is 'ltdc', which no user to use.
second: 'stm32f429_aux_clk[]', clk name is 'lcd-tft', used by ltdc driver

both of them point to the same offset of stm32's RCC register. after
kernel enter console, clk core turn off ltdc's clk as 'stm32f429_gates[]'
is no one to use. but, actually 'stm32f429_aux_clk[]' is in use.

stm32f469/746/769 have the same issue, fix it.

Fixes: daf2d117cbca ("clk: stm32f4: Add lcd-tft clock")
Link: https://lore.kernel.org/linux-arm-kernel/1590564453-24499-7-git-send-email-dillon.minfei@gmail.com/
Link: https://lore.kernel.org/lkml/CAPTRvHkf0cK_4ZidM17rPo99gWDmxgqFt4CDUjqFFwkOeQeFDg@mail.gmail.com/
Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Acked-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/1635232282-3992-10-git-send-email-dillon.minfei@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/clk-stm32f4.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index 5c75e3d906c20..682a18b392f08 100644
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -129,7 +129,6 @@ static const struct stm32f4_gate_data stm32f429_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 20,	"spi5",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
 static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {
@@ -211,7 +210,6 @@ static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 20,	"spi5",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
 static const struct stm32f4_gate_data stm32f746_gates[] __initconst = {
@@ -286,7 +284,6 @@ static const struct stm32f4_gate_data stm32f746_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 23,	"sai2",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
 static const struct stm32f4_gate_data stm32f769_gates[] __initconst = {
@@ -364,7 +361,6 @@ static const struct stm32f4_gate_data stm32f769_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 23,	"sai2",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 30,	"mdio",		"apb2_div" },
 };
 
-- 
GitLab


From 88d78b25db1f540179c7a17495acd130d7b446b8 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Mon, 13 Dec 2021 12:16:35 +0100
Subject: [PATCH 3142/4878] mips: add SYS_HAS_CPU_MIPS64_R5 config for MIPS
 Release 5 support

[ Upstream commit fd4eb90b164442cb1e9909f7845e12a0835ac699 ]

Commit ab7c01fdc3cf ("mips: Add MIPS Release 5 support") adds the two
configs CPU_MIPS32_R5 and CPU_MIPS64_R5, which depend on the corresponding
SYS_HAS_CPU_MIPS32_R5 and SYS_HAS_CPU_MIPS64_R5, respectively.

The config SYS_HAS_CPU_MIPS32_R5 was already introduced with commit
c5b367835cfc ("MIPS: Add support for XPA."); the config
SYS_HAS_CPU_MIPS64_R5, however, was never introduced.

Hence, ./scripts/checkkconfigsymbols.py warns:

  SYS_HAS_CPU_MIPS64_R5
  Referencing files: arch/mips/Kconfig, arch/mips/include/asm/cpu-type.h

Add the definition for config SYS_HAS_CPU_MIPS64_R5 under the assumption
that SYS_HAS_CPU_MIPS64_R5 follows the same pattern as the existing
SYS_HAS_CPU_MIPS32_R5 and SYS_HAS_CPU_MIPS64_R6.

Fixes: ab7c01fdc3cf ("mips: Add MIPS Release 5 support")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 23d756fe0fd6c..db8fe5d7a2377 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1985,6 +1985,10 @@ config SYS_HAS_CPU_MIPS64_R1
 config SYS_HAS_CPU_MIPS64_R2
 	bool
 
+config SYS_HAS_CPU_MIPS64_R5
+	bool
+	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
+
 config SYS_HAS_CPU_MIPS64_R6
 	bool
 	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
-- 
GitLab


From 0be9ae1e532ecebacc32454c86b8f157796c63a1 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Mon, 13 Dec 2021 12:16:42 +0100
Subject: [PATCH 3143/4878] mips: fix Kconfig reference to PHYS_ADDR_T_64BIT

[ Upstream commit a670c82d9ca4f1e7385d9d6f26ff41a50fbdd944 ]

Commit d4a451d5fc84 ("arch: remove the ARCH_PHYS_ADDR_T_64BIT config
symbol") removes config ARCH_PHYS_ADDR_T_64BIT with all instances of that
config refactored appropriately. Since then, it is recommended to use the
config PHYS_ADDR_T_64BIT instead.

Commit 171543e75272 ("MIPS: Disallow CPU_SUPPORTS_HUGEPAGES for XPA,EVA")
introduces the expression "!(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))"
for config CPU_SUPPORTS_HUGEPAGES, which unintentionally refers to the
non-existing symbol ARCH_PHYS_ADDR_T_64BIT instead of the intended
PHYS_ADDR_T_64BIT.

Fix this Kconfig reference to the intended PHYS_ADDR_T_64BIT.

This issue was identified with the script ./scripts/checkkconfigsymbols.py.
I then reported it on the mailing list and Paul confirmed the mistake in
the linked email thread.

Link: https://lore.kernel.org/lkml/H8IU3R.H5QVNRA077PT@crapouillou.net/
Suggested-by: Paul Cercueil <paul@crapouillou.net>
Fixes: 171543e75272 ("MIPS: Disallow CPU_SUPPORTS_HUGEPAGES for XPA,EVA")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index db8fe5d7a2377..3442bdd4314cb 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2150,7 +2150,7 @@ config CPU_SUPPORTS_ADDRWINCFG
 	bool
 config CPU_SUPPORTS_HUGEPAGES
 	bool
-	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
+	depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
 config MIPS_PGD_C0_CONTEXT
 	bool
 	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
-- 
GitLab


From 62ea255f2bde86a75314bcb3f6bc3160932e140a Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 22 Nov 2021 23:21:58 +0100
Subject: [PATCH 3144/4878] dmaengine: pxa/mmp: stop referencing
 config->slave_id

[ Upstream commit 134c37fa250a87a7e77c80a7c59ae16c462e46e0 ]

The last driver referencing the slave_id on Marvell PXA and MMP platforms
was the SPI driver, but this stopped doing so a long time ago, so the
TODO from the earlier patch can no be removed.

Fixes: b729bf34535e ("spi/pxa2xx: Don't use slave_id of dma_slave_config")
Fixes: 13b3006b8ebd ("dma: mmp_pdma: add filter function")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211122222203.4103644-7-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/mmp_pdma.c | 6 ------
 drivers/dma/pxa_dma.c  | 7 -------
 2 files changed, 13 deletions(-)

diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index b84303be8edf5..4eb63f1ad2247 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -728,12 +728,6 @@ static int mmp_pdma_config_write(struct dma_chan *dchan,
 
 	chan->dir = direction;
 	chan->dev_addr = addr;
-	/* FIXME: drivers should be ported over to use the filter
-	 * function. Once that's done, the following two lines can
-	 * be removed.
-	 */
-	if (cfg->slave_id)
-		chan->drcmr = cfg->slave_id;
 
 	return 0;
 }
diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c
index 349fb312c8725..b4ef4f19f7dec 100644
--- a/drivers/dma/pxa_dma.c
+++ b/drivers/dma/pxa_dma.c
@@ -911,13 +911,6 @@ static void pxad_get_config(struct pxad_chan *chan,
 		*dcmd |= PXA_DCMD_BURST16;
 	else if (maxburst == 32)
 		*dcmd |= PXA_DCMD_BURST32;
-
-	/* FIXME: drivers should be ported over to use the filter
-	 * function. Once that's done, the following two lines can
-	 * be removed.
-	 */
-	if (chan->cfg.slave_id)
-		chan->drcmr = chan->cfg.slave_id;
 }
 
 static struct dma_async_tx_descriptor *
-- 
GitLab


From c2bd7c31de1a5f3bb5f9a30327c58501d08e2ad0 Mon Sep 17 00:00:00 2001
From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Date: Fri, 20 Aug 2021 15:29:57 -0500
Subject: [PATCH 3145/4878] iommu/amd: Remove iommu_init_ga()

[ Upstream commit eb03f2d2f6a4da25d286613717d10add9ce9f175 ]

Since the function has been simplified and only call iommu_init_ga_log(),
remove the function and replace with iommu_init_ga_log() instead.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20210820202957.187572-4-suravee.suthikulpanit@amd.com
Fixes: 8bda0cfbdc1a ("iommu/amd: Detect and initialize guest vAPIC log")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/amd/init.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 28de889aa5164..c82f8ab4783c0 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -830,9 +830,9 @@ static int iommu_ga_log_enable(struct amd_iommu *iommu)
 	return 0;
 }
 
-#ifdef CONFIG_IRQ_REMAP
 static int iommu_init_ga_log(struct amd_iommu *iommu)
 {
+#ifdef CONFIG_IRQ_REMAP
 	u64 entry;
 
 	if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir))
@@ -862,18 +862,9 @@ static int iommu_init_ga_log(struct amd_iommu *iommu)
 err_out:
 	free_ga_log(iommu);
 	return -EINVAL;
-}
-#endif /* CONFIG_IRQ_REMAP */
-
-static int iommu_init_ga(struct amd_iommu *iommu)
-{
-	int ret = 0;
-
-#ifdef CONFIG_IRQ_REMAP
-	ret = iommu_init_ga_log(iommu);
+#else
+	return 0;
 #endif /* CONFIG_IRQ_REMAP */
-
-	return ret;
 }
 
 static int __init alloc_cwwb_sem(struct amd_iommu *iommu)
@@ -1860,7 +1851,7 @@ static int __init iommu_init_pci(struct amd_iommu *iommu)
 	if (iommu_feature(iommu, FEATURE_PPR) && alloc_ppr_log(iommu))
 		return -ENOMEM;
 
-	ret = iommu_init_ga(iommu);
+	ret = iommu_init_ga_log(iommu);
 	if (ret)
 		return ret;
 
-- 
GitLab


From 676049a3d2c6ae7156ec123755b9b99574b7ac4d Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Tue, 23 Nov 2021 18:10:34 +0200
Subject: [PATCH 3146/4878] iommu/amd: Restore GA log/tail pointer on host
 resume

[ Upstream commit a8d4a37d1bb93608501d0d0545f902061152669a ]

This will give IOMMU GA log a chance to work after resume
from s3/s4.

Fixes: 8bda0cfbdc1a6 ("iommu/amd: Detect and initialize guest vAPIC log")

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20211123161038.48009-2-mlevitsk@redhat.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/amd/init.c | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index c82f8ab4783c0..3f31a52f7044f 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -805,16 +805,27 @@ static int iommu_ga_log_enable(struct amd_iommu *iommu)
 {
 #ifdef CONFIG_IRQ_REMAP
 	u32 status, i;
+	u64 entry;
 
 	if (!iommu->ga_log)
 		return -EINVAL;
 
-	status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
-
 	/* Check if already running */
-	if (status & (MMIO_STATUS_GALOG_RUN_MASK))
+	status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
+	if (WARN_ON(status & (MMIO_STATUS_GALOG_RUN_MASK)))
 		return 0;
 
+	entry = iommu_virt_to_phys(iommu->ga_log) | GA_LOG_SIZE_512;
+	memcpy_toio(iommu->mmio_base + MMIO_GA_LOG_BASE_OFFSET,
+		    &entry, sizeof(entry));
+	entry = (iommu_virt_to_phys(iommu->ga_log_tail) &
+		 (BIT_ULL(52)-1)) & ~7ULL;
+	memcpy_toio(iommu->mmio_base + MMIO_GA_LOG_TAIL_OFFSET,
+		    &entry, sizeof(entry));
+	writel(0x00, iommu->mmio_base + MMIO_GA_HEAD_OFFSET);
+	writel(0x00, iommu->mmio_base + MMIO_GA_TAIL_OFFSET);
+
+
 	iommu_feature_enable(iommu, CONTROL_GAINT_EN);
 	iommu_feature_enable(iommu, CONTROL_GALOG_EN);
 
@@ -824,7 +835,7 @@ static int iommu_ga_log_enable(struct amd_iommu *iommu)
 			break;
 	}
 
-	if (i >= LOOP_TIMEOUT)
+	if (WARN_ON(i >= LOOP_TIMEOUT))
 		return -EINVAL;
 #endif /* CONFIG_IRQ_REMAP */
 	return 0;
@@ -833,8 +844,6 @@ static int iommu_ga_log_enable(struct amd_iommu *iommu)
 static int iommu_init_ga_log(struct amd_iommu *iommu)
 {
 #ifdef CONFIG_IRQ_REMAP
-	u64 entry;
-
 	if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir))
 		return 0;
 
@@ -848,16 +857,6 @@ static int iommu_init_ga_log(struct amd_iommu *iommu)
 	if (!iommu->ga_log_tail)
 		goto err_out;
 
-	entry = iommu_virt_to_phys(iommu->ga_log) | GA_LOG_SIZE_512;
-	memcpy_toio(iommu->mmio_base + MMIO_GA_LOG_BASE_OFFSET,
-		    &entry, sizeof(entry));
-	entry = (iommu_virt_to_phys(iommu->ga_log_tail) &
-		 (BIT_ULL(52)-1)) & ~7ULL;
-	memcpy_toio(iommu->mmio_base + MMIO_GA_LOG_TAIL_OFFSET,
-		    &entry, sizeof(entry));
-	writel(0x00, iommu->mmio_base + MMIO_GA_HEAD_OFFSET);
-	writel(0x00, iommu->mmio_base + MMIO_GA_TAIL_OFFSET);
-
 	return 0;
 err_out:
 	free_ga_log(iommu);
-- 
GitLab


From 57bc8985753ca65d6a5ecae46cdd5d7e38ff447e Mon Sep 17 00:00:00 2001
From: Cezary Rojewski <cezary.rojewski@intel.com>
Date: Thu, 16 Dec 2021 12:57:39 +0100
Subject: [PATCH 3147/4878] ASoC: Intel: catpt: Test dmaengine_submit() result
 before moving on

[ Upstream commit 2a9a72e290d4a4741e673f86b9fba9bfb319786d ]

After calling dmaengine_submit(), the submitted transfer descriptor
belongs to the DMA engine. Pointer to that descriptor may no longer be
valid after the call and should be tested before awaiting transfer
completion.

Reported-by: Kevin Tian <kevin.tian@intel.com>
Suggested-by: Dave Jiang <dave.jiang@intel.com>
Fixes: 4fac9b31d0b9 ("ASoC: Intel: Add catpt base members")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20211216115743.2130622-2-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/catpt/dsp.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/sound/soc/intel/catpt/dsp.c b/sound/soc/intel/catpt/dsp.c
index 9e807b9417321..38a92bbc1ed56 100644
--- a/sound/soc/intel/catpt/dsp.c
+++ b/sound/soc/intel/catpt/dsp.c
@@ -65,6 +65,7 @@ static int catpt_dma_memcpy(struct catpt_dev *cdev, struct dma_chan *chan,
 {
 	struct dma_async_tx_descriptor *desc;
 	enum dma_status status;
+	int ret;
 
 	desc = dmaengine_prep_dma_memcpy(chan, dst_addr, src_addr, size,
 					 DMA_CTRL_ACK);
@@ -77,13 +78,22 @@ static int catpt_dma_memcpy(struct catpt_dev *cdev, struct dma_chan *chan,
 	catpt_updatel_shim(cdev, HMDC,
 			   CATPT_HMDC_HDDA(CATPT_DMA_DEVID, chan->chan_id),
 			   CATPT_HMDC_HDDA(CATPT_DMA_DEVID, chan->chan_id));
-	dmaengine_submit(desc);
+
+	ret = dma_submit_error(dmaengine_submit(desc));
+	if (ret) {
+		dev_err(cdev->dev, "submit tx failed: %d\n", ret);
+		goto clear_hdda;
+	}
+
 	status = dma_wait_for_async_tx(desc);
+	ret = (status == DMA_COMPLETE) ? 0 : -EPROTO;
+
+clear_hdda:
 	/* regardless of status, disable access to HOST memory in demand mode */
 	catpt_updatel_shim(cdev, HMDC,
 			   CATPT_HMDC_HDDA(CATPT_DMA_DEVID, chan->chan_id), 0);
 
-	return (status == DMA_COMPLETE) ? 0 : -EPROTO;
+	return ret;
 }
 
 int catpt_dma_memcpy_todsp(struct catpt_dev *cdev, struct dma_chan *chan,
-- 
GitLab


From 6e2a16954459e823bd4dcba7e82c380afea9696c Mon Sep 17 00:00:00 2001
From: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Date: Fri, 17 Dec 2021 15:30:55 +0000
Subject: [PATCH 3148/4878] iommu/iova: Fix race between FQ timeout and
 teardown

[ Upstream commit d7061627d701c90e1cac1e1e60c45292f64f3470 ]

It turns out to be possible for hotplugging out a device to reach the
stage of tearing down the device's group and default domain before the
domain's flush queue has drained naturally. At this point, it is then
possible for the timeout to expire just before the del_timer() call
in free_iova_flush_queue(), such that we then proceed to free the FQ
resources while fq_flush_timeout() is still accessing them on another
CPU. Crashes due to this have been observed in the wild while removing
NVMe devices.

Close the race window by using del_timer_sync() to safely wait for any
active timeout handler to finish before we start to free things. We
already avoid any locking in free_iova_flush_queue() since the FQ is
supposed to be inactive anyway, so the potential deadlock scenario does
not apply.

Fixes: 9a005a800ae8 ("iommu/iova: Add flush timer")
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
[ rm: rewrite commit message ]
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/0a365e5b07f14b7344677ad6a9a734966a8422ce.1639753638.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/iova.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 30d969a4c5fde..1164d1a42cbc5 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -64,8 +64,7 @@ static void free_iova_flush_queue(struct iova_domain *iovad)
 	if (!has_iova_flush_queue(iovad))
 		return;
 
-	if (timer_pending(&iovad->fq_timer))
-		del_timer(&iovad->fq_timer);
+	del_timer_sync(&iovad->fq_timer);
 
 	fq_destroy_all_entries(iovad);
 
-- 
GitLab


From d781f4cd8c71fe2b42cf5784860fc1c68644b44d Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Mon, 20 Dec 2021 19:21:26 +0800
Subject: [PATCH 3149/4878] scsi: block: pm: Always set request queue runtime
 active in blk_post_runtime_resume()

[ Upstream commit 6e1fcab00a23f7fe9f4fe9704905a790efa1eeab ]

John Garry reported a deadlock that occurs when trying to access a
runtime-suspended SATA device.  For obscure reasons, the rescan procedure
causes the link to be hard-reset, which disconnects the device.

The rescan tries to carry out a runtime resume when accessing the device.
scsi_rescan_device() holds the SCSI device lock and won't release it until
it can put commands onto the device's block queue.  This can't happen until
the queue is successfully runtime-resumed or the device is unregistered.
But the runtime resume fails because the device is disconnected, and
__scsi_remove_device() can't do the unregistration because it can't get the
device lock.

The best way to resolve this deadlock appears to be to allow the block
queue to start running again even after an unsuccessful runtime resume.
The idea is that the driver or the SCSI error handler will need to be able
to use the queue to resolve the runtime resume failure.

This patch removes the err argument to blk_post_runtime_resume() and makes
the routine act as though the resume was successful always.  This fixes the
deadlock.

Link: https://lore.kernel.org/r/1639999298-244569-4-git-send-email-chenxiang66@hisilicon.com
Fixes: e27829dc92e5 ("scsi: serialize ->rescan against ->remove")
Reported-and-tested-by: John Garry <john.garry@huawei.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 block/blk-pm.c         | 22 +++++++---------------
 drivers/scsi/scsi_pm.c |  2 +-
 include/linux/blk-pm.h |  2 +-
 3 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/block/blk-pm.c b/block/blk-pm.c
index 17bd020268d42..2dad62cc15727 100644
--- a/block/blk-pm.c
+++ b/block/blk-pm.c
@@ -163,27 +163,19 @@ EXPORT_SYMBOL(blk_pre_runtime_resume);
 /**
  * blk_post_runtime_resume - Post runtime resume processing
  * @q: the queue of the device
- * @err: return value of the device's runtime_resume function
  *
  * Description:
- *    Update the queue's runtime status according to the return value of the
- *    device's runtime_resume function. If the resume was successful, call
- *    blk_set_runtime_active() to do the real work of restarting the queue.
+ *    For historical reasons, this routine merely calls blk_set_runtime_active()
+ *    to do the real work of restarting the queue.  It does this regardless of
+ *    whether the device's runtime-resume succeeded; even if it failed the
+ *    driver or error handler will need to communicate with the device.
  *
  *    This function should be called near the end of the device's
  *    runtime_resume callback.
  */
-void blk_post_runtime_resume(struct request_queue *q, int err)
+void blk_post_runtime_resume(struct request_queue *q)
 {
-	if (!q->dev)
-		return;
-	if (!err) {
-		blk_set_runtime_active(q);
-	} else {
-		spin_lock_irq(&q->queue_lock);
-		q->rpm_status = RPM_SUSPENDED;
-		spin_unlock_irq(&q->queue_lock);
-	}
+	blk_set_runtime_active(q);
 }
 EXPORT_SYMBOL(blk_post_runtime_resume);
 
@@ -201,7 +193,7 @@ EXPORT_SYMBOL(blk_post_runtime_resume);
  * runtime PM status and re-enable peeking requests from the queue. It
  * should be called before first request is added to the queue.
  *
- * This function is also called by blk_post_runtime_resume() for successful
+ * This function is also called by blk_post_runtime_resume() for
  * runtime resumes.  It does everything necessary to restart the queue.
  */
 void blk_set_runtime_active(struct request_queue *q)
diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 3717eea37ecb3..e91a0a5bc7a3e 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -262,7 +262,7 @@ static int sdev_runtime_resume(struct device *dev)
 	blk_pre_runtime_resume(sdev->request_queue);
 	if (pm && pm->runtime_resume)
 		err = pm->runtime_resume(dev);
-	blk_post_runtime_resume(sdev->request_queue, err);
+	blk_post_runtime_resume(sdev->request_queue);
 
 	return err;
 }
diff --git a/include/linux/blk-pm.h b/include/linux/blk-pm.h
index b80c65aba2493..2580e05a8ab67 100644
--- a/include/linux/blk-pm.h
+++ b/include/linux/blk-pm.h
@@ -14,7 +14,7 @@ extern void blk_pm_runtime_init(struct request_queue *q, struct device *dev);
 extern int blk_pre_runtime_suspend(struct request_queue *q);
 extern void blk_post_runtime_suspend(struct request_queue *q, int err);
 extern void blk_pre_runtime_resume(struct request_queue *q);
-extern void blk_post_runtime_resume(struct request_queue *q, int err);
+extern void blk_post_runtime_resume(struct request_queue *q);
 extern void blk_set_runtime_active(struct request_queue *q);
 #else
 static inline void blk_pm_runtime_init(struct request_queue *q,
-- 
GitLab


From c73ccdd62d2162d397c474f70625521f4646bcb6 Mon Sep 17 00:00:00 2001
From: Ryuta NAKANISHI <nakanishi.ryuta@socionext.com>
Date: Wed, 22 Dec 2021 14:19:29 +0900
Subject: [PATCH 3150/4878] phy: uniphier-usb3ss: fix unintended writing zeros
 to PHY register

[ Upstream commit 898c7a9ec81620125f2463714a0f4dea18ad6e54 ]

Similar to commit 4a90bbb478db ("phy: uniphier-pcie: Fix updating phy
parameters"), in function uniphier_u3ssphy_set_param(), unintentionally
write zeros to other fields when writing PHY registers.

Fixes: 5ab43d0f8697 ("phy: socionext: add USB3 PHY driver for UniPhier SoC")
Signed-off-by: Ryuta NAKANISHI <nakanishi.ryuta@socionext.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1640150369-4134-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/socionext/phy-uniphier-usb3ss.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/socionext/phy-uniphier-usb3ss.c b/drivers/phy/socionext/phy-uniphier-usb3ss.c
index 6700645bcbe6b..3b5ffc16a6947 100644
--- a/drivers/phy/socionext/phy-uniphier-usb3ss.c
+++ b/drivers/phy/socionext/phy-uniphier-usb3ss.c
@@ -22,11 +22,13 @@
 #include <linux/reset.h>
 
 #define SSPHY_TESTI		0x0
-#define SSPHY_TESTO		0x4
 #define TESTI_DAT_MASK		GENMASK(13, 6)
 #define TESTI_ADR_MASK		GENMASK(5, 1)
 #define TESTI_WR_EN		BIT(0)
 
+#define SSPHY_TESTO		0x4
+#define TESTO_DAT_MASK		GENMASK(7, 0)
+
 #define PHY_F(regno, msb, lsb) { (regno), (msb), (lsb) }
 
 #define CDR_CPD_TRIM	PHY_F(7, 3, 0)	/* RxPLL charge pump current */
@@ -84,12 +86,12 @@ static void uniphier_u3ssphy_set_param(struct uniphier_u3ssphy_priv *priv,
 	val  = FIELD_PREP(TESTI_DAT_MASK, 1);
 	val |= FIELD_PREP(TESTI_ADR_MASK, p->field.reg_no);
 	uniphier_u3ssphy_testio_write(priv, val);
-	val = readl(priv->base + SSPHY_TESTO);
+	val = readl(priv->base + SSPHY_TESTO) & TESTO_DAT_MASK;
 
 	/* update value */
-	val &= ~FIELD_PREP(TESTI_DAT_MASK, field_mask);
+	val &= ~field_mask;
 	data = field_mask & (p->value << p->field.lsb);
-	val  = FIELD_PREP(TESTI_DAT_MASK, data);
+	val  = FIELD_PREP(TESTI_DAT_MASK, data | val);
 	val |= FIELD_PREP(TESTI_ADR_MASK, p->field.reg_no);
 	uniphier_u3ssphy_testio_write(priv, val);
 	uniphier_u3ssphy_testio_write(priv, val | TESTI_WR_EN);
-- 
GitLab


From d491a2c2cf96f9f3d855cf0bcd807d48ccb98e81 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 22 Dec 2021 09:51:57 +0800
Subject: [PATCH 3151/4878] ASoC: mediatek: Check for error clk pointer

[ Upstream commit 9de2b9286a6dd16966959b3cb34fc2ddfd39213e ]

Yes, you are right and now the return code depending on the
init_clks().

Fixes: 6078c651947a ("soc: mediatek: Refine scpsys to support multiple platform")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20211222015157.1025853-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/mediatek/mtk-scpsys.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index ca75b14931ec9..670cc82d17dc2 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -411,12 +411,17 @@ out:
 	return ret;
 }
 
-static void init_clks(struct platform_device *pdev, struct clk **clk)
+static int init_clks(struct platform_device *pdev, struct clk **clk)
 {
 	int i;
 
-	for (i = CLK_NONE + 1; i < CLK_MAX; i++)
+	for (i = CLK_NONE + 1; i < CLK_MAX; i++) {
 		clk[i] = devm_clk_get(&pdev->dev, clk_names[i]);
+		if (IS_ERR(clk[i]))
+			return PTR_ERR(clk[i]);
+	}
+
+	return 0;
 }
 
 static struct scp *init_scp(struct platform_device *pdev,
@@ -426,7 +431,7 @@ static struct scp *init_scp(struct platform_device *pdev,
 {
 	struct genpd_onecell_data *pd_data;
 	struct resource *res;
-	int i, j;
+	int i, j, ret;
 	struct scp *scp;
 	struct clk *clk[CLK_MAX];
 
@@ -481,7 +486,9 @@ static struct scp *init_scp(struct platform_device *pdev,
 
 	pd_data->num_domains = num;
 
-	init_clks(pdev, clk);
+	ret = init_clks(pdev, clk);
+	if (ret)
+		return ERR_PTR(ret);
 
 	for (i = 0; i < num; i++) {
 		struct scp_domain *scpd = &scp->domains[i];
-- 
GitLab


From 696a50abbc7c26e4ccad33955befa0bc4943d42e Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 28 Dec 2021 11:40:26 +0800
Subject: [PATCH 3152/4878] ASoC: samsung: idma: Check of ioremap return value

[ Upstream commit 3ecb46755eb85456b459a1a9f952c52986bce8ec ]

Because of the potential failure of the ioremap(), the buf->area could
be NULL.
Therefore, we need to check it and return -ENOMEM in order to transfer
the error.

Fixes: f09aecd50f39 ("ASoC: SAMSUNG: Add I2S0 internal dma driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211228034026.1659385-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/samsung/idma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index 66bcc2f97544b..c3f1b054e2389 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -360,6 +360,8 @@ static int preallocate_idma_buffer(struct snd_pcm *pcm, int stream)
 	buf->addr = idma.lp_tx_addr;
 	buf->bytes = idma_hardware.buffer_bytes_max;
 	buf->area = (unsigned char * __force)ioremap(buf->addr, buf->bytes);
+	if (!buf->area)
+		return -ENOMEM;
 
 	return 0;
 }
-- 
GitLab


From a39460610452f4ba285e1dfb1a94ddfec19096a4 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Tue, 28 Dec 2021 12:55:22 +0000
Subject: [PATCH 3153/4878] misc: lattice-ecp3-config: Fix task hung when
 firmware load failed

[ Upstream commit fcee5ce50bdb21116711e38635e3865594af907e ]

When firmware load failed, kernel report task hung as follows:

INFO: task xrun:5191 blocked for more than 147 seconds.
      Tainted: G        W         5.16.0-rc5-next-20211220+ #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:xrun            state:D stack:    0 pid: 5191 ppid:   270 flags:0x00000004
Call Trace:
 __schedule+0xc12/0x4b50 kernel/sched/core.c:4986
 schedule+0xd7/0x260 kernel/sched/core.c:6369 (discriminator 1)
 schedule_timeout+0x7aa/0xa80 kernel/time/timer.c:1857
 wait_for_completion+0x181/0x290 kernel/sched/completion.c:85
 lattice_ecp3_remove+0x32/0x40 drivers/misc/lattice-ecp3-config.c:221
 spi_remove+0x72/0xb0 drivers/spi/spi.c:409

lattice_ecp3_remove() wait for signals from firmware loading, but when
load failed, firmware_load() does not send this signal. This cause
device remove hung. Fix it by sending signal even if load failed.

Fixes: 781551df57c7 ("misc: Add Lattice ECP3 FPGA configuration via SPI")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20211228125522.3122284-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/lattice-ecp3-config.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/lattice-ecp3-config.c b/drivers/misc/lattice-ecp3-config.c
index 5eaf74447ca1e..556bb7d705f53 100644
--- a/drivers/misc/lattice-ecp3-config.c
+++ b/drivers/misc/lattice-ecp3-config.c
@@ -76,12 +76,12 @@ static void firmware_load(const struct firmware *fw, void *context)
 
 	if (fw == NULL) {
 		dev_err(&spi->dev, "Cannot load firmware, aborting\n");
-		return;
+		goto out;
 	}
 
 	if (fw->size == 0) {
 		dev_err(&spi->dev, "Error: Firmware size is 0!\n");
-		return;
+		goto out;
 	}
 
 	/* Fill dummy data (24 stuffing bits for commands) */
@@ -103,7 +103,7 @@ static void firmware_load(const struct firmware *fw, void *context)
 		dev_err(&spi->dev,
 			"Error: No supported FPGA detected (JEDEC_ID=%08x)!\n",
 			jedec_id);
-		return;
+		goto out;
 	}
 
 	dev_info(&spi->dev, "FPGA %s detected\n", ecp3_dev[i].name);
@@ -116,7 +116,7 @@ static void firmware_load(const struct firmware *fw, void *context)
 	buffer = kzalloc(fw->size + 8, GFP_KERNEL);
 	if (!buffer) {
 		dev_err(&spi->dev, "Error: Can't allocate memory!\n");
-		return;
+		goto out;
 	}
 
 	/*
@@ -155,7 +155,7 @@ static void firmware_load(const struct firmware *fw, void *context)
 			"Error: Timeout waiting for FPGA to clear (status=%08x)!\n",
 			status);
 		kfree(buffer);
-		return;
+		goto out;
 	}
 
 	dev_info(&spi->dev, "Configuring the FPGA...\n");
@@ -181,7 +181,7 @@ static void firmware_load(const struct firmware *fw, void *context)
 	release_firmware(fw);
 
 	kfree(buffer);
-
+out:
 	complete(&data->fw_loaded);
 }
 
-- 
GitLab


From 24b047d72c77fdb73821f3dfcf43352663a02546 Mon Sep 17 00:00:00 2001
From: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Date: Fri, 29 Jan 2021 14:22:22 +0100
Subject: [PATCH 3154/4878] counter: stm32-lptimer-cnt: remove iio counter abi

[ Upstream commit 01f68f067dc39df9c9d95d759ee61517eb4b0fcf ]

Currently, the STM32 LP Timer counter driver registers into both IIO and
counter subsystems, which is redundant.

Remove the IIO counter ABI and IIO registration from the STM32 LP Timer
counter driver since it's been superseded by the Counter subsystem
as discussed in [1].

Keep only the counter subsystem related part.
Move a part of the ABI documentation into a driver comment.

This also removes a duplicate ABI warning
$ scripts/get_abi.pl validate
...
/sys/bus/iio/devices/iio:deviceX/in_count0_preset is defined 2 times:
  ./Documentation/ABI/testing/sysfs-bus-iio-timer-stm32:100
  ./Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32:0

[1] https://lkml.org/lkml/2021/1/19/347

Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/1611926542-2490-1-git-send-email-fabrice.gasnier@foss.st.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ABI/testing/sysfs-bus-iio-lptimer-stm32   |  62 ----
 drivers/counter/Kconfig                       |   2 +-
 drivers/counter/stm32-lptimer-cnt.c           | 297 +++---------------
 3 files changed, 37 insertions(+), 324 deletions(-)
 delete mode 100644 Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32
deleted file mode 100644
index 73498ff666bd7..0000000000000
--- a/Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32
+++ /dev/null
@@ -1,62 +0,0 @@
-What:		/sys/bus/iio/devices/iio:deviceX/in_count0_preset
-KernelVersion:	4.13
-Contact:	fabrice.gasnier@st.com
-Description:
-		Reading returns the current preset value. Writing sets the
-		preset value. Encoder counts continuously from 0 to preset
-		value, depending on direction (up/down).
-
-What:		/sys/bus/iio/devices/iio:deviceX/in_count_quadrature_mode_available
-KernelVersion:	4.13
-Contact:	fabrice.gasnier@st.com
-Description:
-		Reading returns the list possible quadrature modes.
-
-What:		/sys/bus/iio/devices/iio:deviceX/in_count0_quadrature_mode
-KernelVersion:	4.13
-Contact:	fabrice.gasnier@st.com
-Description:
-		Configure the device counter quadrature modes:
-
-		- non-quadrature:
-			Encoder IN1 input servers as the count input (up
-			direction).
-
-		- quadrature:
-			Encoder IN1 and IN2 inputs are mixed to get direction
-			and count.
-
-What:		/sys/bus/iio/devices/iio:deviceX/in_count_polarity_available
-KernelVersion:	4.13
-Contact:	fabrice.gasnier@st.com
-Description:
-		Reading returns the list possible active edges.
-
-What:		/sys/bus/iio/devices/iio:deviceX/in_count0_polarity
-KernelVersion:	4.13
-Contact:	fabrice.gasnier@st.com
-Description:
-		Configure the device encoder/counter active edge:
-
-		- rising-edge
-		- falling-edge
-		- both-edges
-
-		In non-quadrature mode, device counts up on active edge.
-
-		In quadrature mode, encoder counting scenarios are as follows:
-
-		+---------+----------+--------------------+--------------------+
-		| Active  | Level on |      IN1 signal    |     IN2 signal     |
-		| edge    | opposite +----------+---------+----------+---------+
-		|         | signal   |  Rising  | Falling |  Rising  | Falling |
-		+---------+----------+----------+---------+----------+---------+
-		| Rising  | High ->  |   Down   |    -    |   Up     |    -    |
-		| edge    | Low  ->  |   Up     |    -    |   Down   |    -    |
-		+---------+----------+----------+---------+----------+---------+
-		| Falling | High ->  |    -     |   Up    |    -     |   Down  |
-		| edge    | Low  ->  |    -     |   Down  |    -     |   Up    |
-		+---------+----------+----------+---------+----------+---------+
-		| Both    | High ->  |   Down   |   Up    |   Up     |   Down  |
-		| edges   | Low  ->  |   Up     |   Down  |   Down   |   Up    |
-		+---------+----------+----------+---------+----------+---------+
diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig
index 2de53ab0dd252..cbdf84200e278 100644
--- a/drivers/counter/Kconfig
+++ b/drivers/counter/Kconfig
@@ -41,7 +41,7 @@ config STM32_TIMER_CNT
 
 config STM32_LPTIMER_CNT
 	tristate "STM32 LP Timer encoder counter driver"
-	depends on (MFD_STM32_LPTIMER || COMPILE_TEST) && IIO
+	depends on MFD_STM32_LPTIMER || COMPILE_TEST
 	help
 	  Select this option to enable STM32 Low-Power Timer quadrature encoder
 	  and counter driver.
diff --git a/drivers/counter/stm32-lptimer-cnt.c b/drivers/counter/stm32-lptimer-cnt.c
index fd6828e2d34f5..937439635d53f 100644
--- a/drivers/counter/stm32-lptimer-cnt.c
+++ b/drivers/counter/stm32-lptimer-cnt.c
@@ -12,8 +12,8 @@
 
 #include <linux/bitfield.h>
 #include <linux/counter.h>
-#include <linux/iio/iio.h>
 #include <linux/mfd/stm32-lptimer.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
@@ -107,249 +107,27 @@ static int stm32_lptim_setup(struct stm32_lptim_cnt *priv, int enable)
 	return regmap_update_bits(priv->regmap, STM32_LPTIM_CFGR, mask, val);
 }
 
-static int stm32_lptim_write_raw(struct iio_dev *indio_dev,
-				 struct iio_chan_spec const *chan,
-				 int val, int val2, long mask)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-	int ret;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_ENABLE:
-		if (val < 0 || val > 1)
-			return -EINVAL;
-
-		/* Check nobody uses the timer, or already disabled/enabled */
-		ret = stm32_lptim_is_enabled(priv);
-		if ((ret < 0) || (!ret && !val))
-			return ret;
-		if (val && ret)
-			return -EBUSY;
-
-		ret = stm32_lptim_setup(priv, val);
-		if (ret)
-			return ret;
-		return stm32_lptim_set_enable_state(priv, val);
-
-	default:
-		return -EINVAL;
-	}
-}
-
-static int stm32_lptim_read_raw(struct iio_dev *indio_dev,
-				struct iio_chan_spec const *chan,
-				int *val, int *val2, long mask)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-	u32 dat;
-	int ret;
-
-	switch (mask) {
-	case IIO_CHAN_INFO_RAW:
-		ret = regmap_read(priv->regmap, STM32_LPTIM_CNT, &dat);
-		if (ret)
-			return ret;
-		*val = dat;
-		return IIO_VAL_INT;
-
-	case IIO_CHAN_INFO_ENABLE:
-		ret = stm32_lptim_is_enabled(priv);
-		if (ret < 0)
-			return ret;
-		*val = ret;
-		return IIO_VAL_INT;
-
-	case IIO_CHAN_INFO_SCALE:
-		/* Non-quadrature mode: scale = 1 */
-		*val = 1;
-		*val2 = 0;
-		if (priv->quadrature_mode) {
-			/*
-			 * Quadrature encoder mode:
-			 * - both edges, quarter cycle, scale is 0.25
-			 * - either rising/falling edge scale is 0.5
-			 */
-			if (priv->polarity > 1)
-				*val2 = 2;
-			else
-				*val2 = 1;
-		}
-		return IIO_VAL_FRACTIONAL_LOG2;
-
-	default:
-		return -EINVAL;
-	}
-}
-
-static const struct iio_info stm32_lptim_cnt_iio_info = {
-	.read_raw = stm32_lptim_read_raw,
-	.write_raw = stm32_lptim_write_raw,
-};
-
-static const char *const stm32_lptim_quadrature_modes[] = {
-	"non-quadrature",
-	"quadrature",
-};
-
-static int stm32_lptim_get_quadrature_mode(struct iio_dev *indio_dev,
-					   const struct iio_chan_spec *chan)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-
-	return priv->quadrature_mode;
-}
-
-static int stm32_lptim_set_quadrature_mode(struct iio_dev *indio_dev,
-					   const struct iio_chan_spec *chan,
-					   unsigned int type)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-
-	if (stm32_lptim_is_enabled(priv))
-		return -EBUSY;
-
-	priv->quadrature_mode = type;
-
-	return 0;
-}
-
-static const struct iio_enum stm32_lptim_quadrature_mode_en = {
-	.items = stm32_lptim_quadrature_modes,
-	.num_items = ARRAY_SIZE(stm32_lptim_quadrature_modes),
-	.get = stm32_lptim_get_quadrature_mode,
-	.set = stm32_lptim_set_quadrature_mode,
-};
-
-static const char * const stm32_lptim_cnt_polarity[] = {
-	"rising-edge", "falling-edge", "both-edges",
-};
-
-static int stm32_lptim_cnt_get_polarity(struct iio_dev *indio_dev,
-					const struct iio_chan_spec *chan)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-
-	return priv->polarity;
-}
-
-static int stm32_lptim_cnt_set_polarity(struct iio_dev *indio_dev,
-					const struct iio_chan_spec *chan,
-					unsigned int type)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-
-	if (stm32_lptim_is_enabled(priv))
-		return -EBUSY;
-
-	priv->polarity = type;
-
-	return 0;
-}
-
-static const struct iio_enum stm32_lptim_cnt_polarity_en = {
-	.items = stm32_lptim_cnt_polarity,
-	.num_items = ARRAY_SIZE(stm32_lptim_cnt_polarity),
-	.get = stm32_lptim_cnt_get_polarity,
-	.set = stm32_lptim_cnt_set_polarity,
-};
-
-static ssize_t stm32_lptim_cnt_get_ceiling(struct stm32_lptim_cnt *priv,
-					   char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%u\n", priv->ceiling);
-}
-
-static ssize_t stm32_lptim_cnt_set_ceiling(struct stm32_lptim_cnt *priv,
-					   const char *buf, size_t len)
-{
-	int ret;
-
-	if (stm32_lptim_is_enabled(priv))
-		return -EBUSY;
-
-	ret = kstrtouint(buf, 0, &priv->ceiling);
-	if (ret)
-		return ret;
-
-	if (priv->ceiling > STM32_LPTIM_MAX_ARR)
-		return -EINVAL;
-
-	return len;
-}
-
-static ssize_t stm32_lptim_cnt_get_preset_iio(struct iio_dev *indio_dev,
-					      uintptr_t private,
-					      const struct iio_chan_spec *chan,
-					      char *buf)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-
-	return stm32_lptim_cnt_get_ceiling(priv, buf);
-}
-
-static ssize_t stm32_lptim_cnt_set_preset_iio(struct iio_dev *indio_dev,
-					      uintptr_t private,
-					      const struct iio_chan_spec *chan,
-					      const char *buf, size_t len)
-{
-	struct stm32_lptim_cnt *priv = iio_priv(indio_dev);
-
-	return stm32_lptim_cnt_set_ceiling(priv, buf, len);
-}
-
-/* LP timer with encoder */
-static const struct iio_chan_spec_ext_info stm32_lptim_enc_ext_info[] = {
-	{
-		.name = "preset",
-		.shared = IIO_SEPARATE,
-		.read = stm32_lptim_cnt_get_preset_iio,
-		.write = stm32_lptim_cnt_set_preset_iio,
-	},
-	IIO_ENUM("polarity", IIO_SEPARATE, &stm32_lptim_cnt_polarity_en),
-	IIO_ENUM_AVAILABLE("polarity", &stm32_lptim_cnt_polarity_en),
-	IIO_ENUM("quadrature_mode", IIO_SEPARATE,
-		 &stm32_lptim_quadrature_mode_en),
-	IIO_ENUM_AVAILABLE("quadrature_mode", &stm32_lptim_quadrature_mode_en),
-	{}
-};
-
-static const struct iio_chan_spec stm32_lptim_enc_channels = {
-	.type = IIO_COUNT,
-	.channel = 0,
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			      BIT(IIO_CHAN_INFO_ENABLE) |
-			      BIT(IIO_CHAN_INFO_SCALE),
-	.ext_info = stm32_lptim_enc_ext_info,
-	.indexed = 1,
-};
-
-/* LP timer without encoder (counter only) */
-static const struct iio_chan_spec_ext_info stm32_lptim_cnt_ext_info[] = {
-	{
-		.name = "preset",
-		.shared = IIO_SEPARATE,
-		.read = stm32_lptim_cnt_get_preset_iio,
-		.write = stm32_lptim_cnt_set_preset_iio,
-	},
-	IIO_ENUM("polarity", IIO_SEPARATE, &stm32_lptim_cnt_polarity_en),
-	IIO_ENUM_AVAILABLE("polarity", &stm32_lptim_cnt_polarity_en),
-	{}
-};
-
-static const struct iio_chan_spec stm32_lptim_cnt_channels = {
-	.type = IIO_COUNT,
-	.channel = 0,
-	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
-			      BIT(IIO_CHAN_INFO_ENABLE) |
-			      BIT(IIO_CHAN_INFO_SCALE),
-	.ext_info = stm32_lptim_cnt_ext_info,
-	.indexed = 1,
-};
-
 /**
  * enum stm32_lptim_cnt_function - enumerates LPTimer counter & encoder modes
  * @STM32_LPTIM_COUNTER_INCREASE: up count on IN1 rising, falling or both edges
  * @STM32_LPTIM_ENCODER_BOTH_EDGE: count on both edges (IN1 & IN2 quadrature)
+ *
+ * In non-quadrature mode, device counts up on active edge.
+ * In quadrature mode, encoder counting scenarios are as follows:
+ * +---------+----------+--------------------+--------------------+
+ * | Active  | Level on |      IN1 signal    |     IN2 signal     |
+ * | edge    | opposite +----------+---------+----------+---------+
+ * |         | signal   |  Rising  | Falling |  Rising  | Falling |
+ * +---------+----------+----------+---------+----------+---------+
+ * | Rising  | High ->  |   Down   |    -    |   Up     |    -    |
+ * | edge    | Low  ->  |   Up     |    -    |   Down   |    -    |
+ * +---------+----------+----------+---------+----------+---------+
+ * | Falling | High ->  |    -     |   Up    |    -     |   Down  |
+ * | edge    | Low  ->  |    -     |   Down  |    -     |   Up    |
+ * +---------+----------+----------+---------+----------+---------+
+ * | Both    | High ->  |   Down   |   Up    |   Up     |   Down  |
+ * | edges   | Low  ->  |   Up     |   Down  |   Down   |   Up    |
+ * +---------+----------+----------+---------+----------+---------+
  */
 enum stm32_lptim_cnt_function {
 	STM32_LPTIM_COUNTER_INCREASE,
@@ -484,7 +262,7 @@ static ssize_t stm32_lptim_cnt_ceiling_read(struct counter_device *counter,
 {
 	struct stm32_lptim_cnt *const priv = counter->priv;
 
-	return stm32_lptim_cnt_get_ceiling(priv, buf);
+	return snprintf(buf, PAGE_SIZE, "%u\n", priv->ceiling);
 }
 
 static ssize_t stm32_lptim_cnt_ceiling_write(struct counter_device *counter,
@@ -493,8 +271,22 @@ static ssize_t stm32_lptim_cnt_ceiling_write(struct counter_device *counter,
 					     const char *buf, size_t len)
 {
 	struct stm32_lptim_cnt *const priv = counter->priv;
+	unsigned int ceiling;
+	int ret;
+
+	if (stm32_lptim_is_enabled(priv))
+		return -EBUSY;
+
+	ret = kstrtouint(buf, 0, &ceiling);
+	if (ret)
+		return ret;
+
+	if (ceiling > STM32_LPTIM_MAX_ARR)
+		return -EINVAL;
+
+	priv->ceiling = ceiling;
 
-	return stm32_lptim_cnt_set_ceiling(priv, buf, len);
+	return len;
 }
 
 static const struct counter_count_ext stm32_lptim_cnt_ext[] = {
@@ -630,32 +422,19 @@ static int stm32_lptim_cnt_probe(struct platform_device *pdev)
 {
 	struct stm32_lptimer *ddata = dev_get_drvdata(pdev->dev.parent);
 	struct stm32_lptim_cnt *priv;
-	struct iio_dev *indio_dev;
-	int ret;
 
 	if (IS_ERR_OR_NULL(ddata))
 		return -EINVAL;
 
-	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv));
-	if (!indio_dev)
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
 		return -ENOMEM;
 
-	priv = iio_priv(indio_dev);
 	priv->dev = &pdev->dev;
 	priv->regmap = ddata->regmap;
 	priv->clk = ddata->clk;
 	priv->ceiling = STM32_LPTIM_MAX_ARR;
 
-	/* Initialize IIO device */
-	indio_dev->name = dev_name(&pdev->dev);
-	indio_dev->dev.of_node = pdev->dev.of_node;
-	indio_dev->info = &stm32_lptim_cnt_iio_info;
-	if (ddata->has_encoder)
-		indio_dev->channels = &stm32_lptim_enc_channels;
-	else
-		indio_dev->channels = &stm32_lptim_cnt_channels;
-	indio_dev->num_channels = 1;
-
 	/* Initialize Counter device */
 	priv->counter.name = dev_name(&pdev->dev);
 	priv->counter.parent = &pdev->dev;
@@ -673,10 +452,6 @@ static int stm32_lptim_cnt_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, priv);
 
-	ret = devm_iio_device_register(&pdev->dev, indio_dev);
-	if (ret)
-		return ret;
-
 	return devm_counter_register(&pdev->dev, &priv->counter);
 }
 
-- 
GitLab


From 702902fc7fb09902e6fa6e330644ea8c28f2fce5 Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Wed, 18 Nov 2020 13:36:20 +0530
Subject: [PATCH 3155/4878] arm64: tegra: Fix Tegra194 HDA {clock,reset}-names
 ordering

[ Upstream commit 48f6e195039486bc303118948f49a9873acc888f ]

As per the HDA binding doc reorder {clock,reset}-names entries for
Tegra194. This also serves as a preparation for converting existing
binding doc to json-schema.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 9b5007e5f790f..815df654e6387 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -782,13 +782,13 @@
 			reg = <0x3510000 0x10000>;
 			interrupts = <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&bpmp TEGRA194_CLK_HDA>,
-				 <&bpmp TEGRA194_CLK_HDA2CODEC_2X>,
-				 <&bpmp TEGRA194_CLK_HDA2HDMICODEC>;
-			clock-names = "hda", "hda2codec_2x", "hda2hdmi";
+				 <&bpmp TEGRA194_CLK_HDA2HDMICODEC>,
+				 <&bpmp TEGRA194_CLK_HDA2CODEC_2X>;
+			clock-names = "hda", "hda2hdmi", "hda2codec_2x";
 			resets = <&bpmp TEGRA194_RESET_HDA>,
-				 <&bpmp TEGRA194_RESET_HDA2CODEC_2X>,
-				 <&bpmp TEGRA194_RESET_HDA2HDMICODEC>;
-			reset-names = "hda", "hda2codec_2x", "hda2hdmi";
+				 <&bpmp TEGRA194_RESET_HDA2HDMICODEC>,
+				 <&bpmp TEGRA194_RESET_HDA2CODEC_2X>;
+			reset-names = "hda", "hda2hdmi", "hda2codec_2x";
 			power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISP>;
 			interconnects = <&mc TEGRA194_MEMORY_CLIENT_HDAR &emc>,
 					<&mc TEGRA194_MEMORY_CLIENT_HDAW &emc>;
-- 
GitLab


From 8f8468a089b0615f92d025418a8f4d4c257c6954 Mon Sep 17 00:00:00 2001
From: Sameer Pujar <spujar@nvidia.com>
Date: Thu, 23 Dec 2021 17:23:51 +0530
Subject: [PATCH 3156/4878] arm64: tegra: Remove non existent Tegra194 reset

[ Upstream commit 146b3a77af8091cabbd1decc51d67799e69682d2 ]

Tegra194 does not really have "hda2codec_2x" related reset. Hence drop
this entry to reflect actual HW.

Fixes: 4878cc0c9fab ("arm64: tegra: Add HDA controller on Tegra194")
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1640260431-11613-4-git-send-email-spujar@nvidia.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 815df654e6387..05cf606b85c9f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -786,9 +786,8 @@
 				 <&bpmp TEGRA194_CLK_HDA2CODEC_2X>;
 			clock-names = "hda", "hda2hdmi", "hda2codec_2x";
 			resets = <&bpmp TEGRA194_RESET_HDA>,
-				 <&bpmp TEGRA194_RESET_HDA2HDMICODEC>,
-				 <&bpmp TEGRA194_RESET_HDA2CODEC_2X>;
-			reset-names = "hda", "hda2hdmi", "hda2codec_2x";
+				 <&bpmp TEGRA194_RESET_HDA2HDMICODEC>;
+			reset-names = "hda", "hda2hdmi";
 			power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISP>;
 			interconnects = <&mc TEGRA194_MEMORY_CLIENT_HDAR &emc>,
 					<&mc TEGRA194_MEMORY_CLIENT_HDAW &emc>;
-- 
GitLab


From e3de89d010c04cc1bc583481ce8f7f03ba625c3b Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 28 Dec 2021 16:03:45 -0800
Subject: [PATCH 3157/4878] mips: lantiq: add support for clk_set_parent()

[ Upstream commit 76f66dfd60dc5d2f9dec22d99091fea1035c5d03 ]

Provide a simple implementation of clk_set_parent() in the lantiq
subarch so that callers of it will build without errors.

Fixes these build errors:

ERROR: modpost: "clk_set_parent" [sound/soc/jz4740/snd-soc-jz4740-i2s.ko] undefined!
ERROR: modpost: "clk_set_parent" [sound/soc/atmel/snd-soc-atmel-i2s.ko] undefined!

Fixes: 171bb2f19ed6 ("MIPS: Lantiq: Add initial support for Lantiq SoCs")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
--to=linux-mips@vger.kernel.org --cc="John Crispin <john@phrozen.org>" --cc="Jonathan Cameron <jic23@kernel.org>" --cc="Russell King <linux@armlinux.org.uk>" --cc="Andy Shevchenko <andy.shevchenko@gmail.com>" --cc=alsa-devel@alsa-project.org --to="Thomas Bogendoerfer <tsbogend@alpha.franken.de>"
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/lantiq/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index 4916cccf378fd..7a623684d9b5e 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -164,6 +164,12 @@ struct clk *clk_get_parent(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_get_parent);
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;
-- 
GitLab


From 588e0b81ce38b2806774f840d7528697bc971000 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 28 Dec 2021 16:05:53 -0800
Subject: [PATCH 3158/4878] mips: bcm63xx: add support for clk_set_parent()

[ Upstream commit 6f03055d508ff4feb8db02ba3df9303a1db8d381 ]

The MIPS BMC63XX subarch does not provide/support clk_set_parent().
This causes build errors in a few drivers, so add a simple implementation
of that function so that callers of it will build without errors.

Fixes these build errors:

ERROR: modpost: "clk_set_parent" [sound/soc/jz4740/snd-soc-jz4740-i2s.ko] undefined!
ERROR: modpost: "clk_set_parent" [sound/soc/atmel/snd-soc-atmel-i2s.ko] undefined!

Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs." )
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/bcm63xx/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index aba6e2d6a736c..dcfa0ea912fe1 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -387,6 +387,12 @@ struct clk *clk_get_parent(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_get_parent);
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 unsigned long clk_get_rate(struct clk *clk)
 {
 	if (!clk)
-- 
GitLab


From 74988d017dd19fef5f808a4f0162d2e21bd27001 Mon Sep 17 00:00:00 2001
From: Ammar Faizi <ammarfaizi2@gmail.com>
Date: Sun, 26 Dec 2021 20:54:02 +0700
Subject: [PATCH 3159/4878] powerpc/xive: Add missing null check after calling
 kmalloc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 18dbfcdedc802f9500b2c29794f22a31d27639c0 ]

Commit 930914b7d528fc ("powerpc/xive: Add a debugfs file to dump
internal XIVE state") forgot to add a null check.

Add it.

Fixes: 930914b7d528fc6b0249bffc00564100bcf6ef75 ("powerpc/xive: Add a debugfs file to dump internal XIVE state")
Signed-off-by: Ammar Faizi <ammarfaizi2@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211226135314.251221-1-ammar.faizi@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/sysdev/xive/spapr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index 1e3674d7ea7bc..b57eeaff7bb33 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -658,6 +658,9 @@ static int xive_spapr_debug_show(struct seq_file *m, void *private)
 	struct xive_irq_bitmap *xibm;
 	char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
 
+	if (!buf)
+		return -ENOMEM;
+
 	list_for_each_entry(xibm, &xive_irq_bitmaps, list) {
 		memset(buf, 0, PAGE_SIZE);
 		bitmap_print_to_pagebuf(true, buf, xibm->bitmap, xibm->count);
-- 
GitLab


From 80524c8cdf2959b424f4e8fd735598f5e112b375 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Tue, 4 Jan 2022 13:22:16 +0000
Subject: [PATCH 3160/4878] ASoC: fsl_mqs: fix MODULE_ALIAS

[ Upstream commit 9f3d45318dd9e739ed62e4218839a7a824d3cced ]

modprobe can't handle spaces in aliases.

Fixes: 9e28f6532c61 ("ASoC: fsl_mqs: Add MQS component driver")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20220104132218.1690103-1-hi@alyssa.is
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/fsl/fsl_mqs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_mqs.c b/sound/soc/fsl/fsl_mqs.c
index 69aeb0e71844d..0d4efbed41dab 100644
--- a/sound/soc/fsl/fsl_mqs.c
+++ b/sound/soc/fsl/fsl_mqs.c
@@ -337,4 +337,4 @@ module_platform_driver(fsl_mqs_driver);
 MODULE_AUTHOR("Shengjiu Wang <Shengjiu.Wang@nxp.com>");
 MODULE_DESCRIPTION("MQS codec driver");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform: fsl-mqs");
+MODULE_ALIAS("platform:fsl-mqs");
-- 
GitLab


From 5a6864e2e6ab7ce101d1ff105fe8f87f591746bd Mon Sep 17 00:00:00 2001
From: Kamal Heib <kamalheib1@gmail.com>
Date: Mon, 20 Dec 2021 17:25:30 +0200
Subject: [PATCH 3161/4878] RDMA/cxgb4: Set queue pair state when being queried

[ Upstream commit e375b9c92985e409c4bb95dd43d34915ea7f5e28 ]

The API for ib_query_qp requires the driver to set cur_qp_state on return,
add the missing set.

Fixes: 67bbc05512d8 ("RDMA/cxgb4: Add query_qp support")
Link: https://lore.kernel.org/r/20211220152530.60399-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/cxgb4/qp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 861e19fdfeb46..12e5461581cb4 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -2469,6 +2469,7 @@ int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	memset(attr, 0, sizeof(*attr));
 	memset(init_attr, 0, sizeof(*init_attr));
 	attr->qp_state = to_ib_qp_state(qhp->attr.state);
+	attr->cur_qp_state = to_ib_qp_state(qhp->attr.state);
 	init_attr->cap.max_send_wr = qhp->attr.sq_num_entries;
 	init_attr->cap.max_recv_wr = qhp->attr.rq_num_entries;
 	init_attr->cap.max_send_sge = qhp->attr.sq_max_sges;
-- 
GitLab


From 36d46e21c9c4d363f84b6b970971729144da2461 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@nxp.com>
Date: Wed, 5 Jan 2022 19:08:03 +0800
Subject: [PATCH 3162/4878] ASoC: fsl_asrc: refine the check of available clock
 divider

[ Upstream commit 320386343451ab6a3577e0ee200dac56a6182944 ]

According to RM, the clock divider range is from 1 to 8, clock
prescaling ratio may be any power of 2 from 1 to 128.
So the supported divider is not all the value between
1 and 1024, just limited value in that range.

Create table for the supported divder and add function to
check the clock divider is available by comparing with
the table.

Fixes: d0250cf4f2ab ("ASoC: fsl_asrc: Add an option to select internal ratio mode")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1641380883-20709-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/fsl/fsl_asrc.c | 69 +++++++++++++++++++++++++++++++++-------
 1 file changed, 58 insertions(+), 11 deletions(-)

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 02c81d2e34ad0..5e3c71f025f45 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -19,6 +19,7 @@
 #include "fsl_asrc.h"
 
 #define IDEAL_RATIO_DECIMAL_DEPTH 26
+#define DIVIDER_NUM  64
 
 #define pair_err(fmt, ...) \
 	dev_err(&asrc->pdev->dev, "Pair %c: " fmt, 'A' + index, ##__VA_ARGS__)
@@ -101,6 +102,55 @@ static unsigned char clk_map_imx8qxp[2][ASRC_CLK_MAP_LEN] = {
 	},
 };
 
+/*
+ * According to RM, the divider range is 1 ~ 8,
+ * prescaler is power of 2 from 1 ~ 128.
+ */
+static int asrc_clk_divider[DIVIDER_NUM] = {
+	1,  2,  4,  8,  16,  32,  64,  128,  /* divider = 1 */
+	2,  4,  8, 16,  32,  64, 128,  256,  /* divider = 2 */
+	3,  6, 12, 24,  48,  96, 192,  384,  /* divider = 3 */
+	4,  8, 16, 32,  64, 128, 256,  512,  /* divider = 4 */
+	5, 10, 20, 40,  80, 160, 320,  640,  /* divider = 5 */
+	6, 12, 24, 48,  96, 192, 384,  768,  /* divider = 6 */
+	7, 14, 28, 56, 112, 224, 448,  896,  /* divider = 7 */
+	8, 16, 32, 64, 128, 256, 512, 1024,  /* divider = 8 */
+};
+
+/*
+ * Check if the divider is available for internal ratio mode
+ */
+static bool fsl_asrc_divider_avail(int clk_rate, int rate, int *div)
+{
+	u32 rem, i;
+	u64 n;
+
+	if (div)
+		*div = 0;
+
+	if (clk_rate == 0 || rate == 0)
+		return false;
+
+	n = clk_rate;
+	rem = do_div(n, rate);
+
+	if (div)
+		*div = n;
+
+	if (rem != 0)
+		return false;
+
+	for (i = 0; i < DIVIDER_NUM; i++) {
+		if (n == asrc_clk_divider[i])
+			break;
+	}
+
+	if (i == DIVIDER_NUM)
+		return false;
+
+	return true;
+}
+
 /**
  * fsl_asrc_sel_proc - Select the pre-processing and post-processing options
  * @inrate: input sample rate
@@ -330,12 +380,12 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 	enum asrc_word_width input_word_width;
 	enum asrc_word_width output_word_width;
 	u32 inrate, outrate, indiv, outdiv;
-	u32 clk_index[2], div[2], rem[2];
+	u32 clk_index[2], div[2];
 	u64 clk_rate;
 	int in, out, channels;
 	int pre_proc, post_proc;
 	struct clk *clk;
-	bool ideal;
+	bool ideal, div_avail;
 
 	if (!config) {
 		pair_err("invalid pair config\n");
@@ -415,8 +465,7 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 	clk = asrc_priv->asrck_clk[clk_index[ideal ? OUT : IN]];
 
 	clk_rate = clk_get_rate(clk);
-	rem[IN] = do_div(clk_rate, inrate);
-	div[IN] = (u32)clk_rate;
+	div_avail = fsl_asrc_divider_avail(clk_rate, inrate, &div[IN]);
 
 	/*
 	 * The divider range is [1, 1024], defined by the hardware. For non-
@@ -425,7 +474,7 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 	 * only result in different converting speeds. So remainder does not
 	 * matter, as long as we keep the divider within its valid range.
 	 */
-	if (div[IN] == 0 || (!ideal && (div[IN] > 1024 || rem[IN] != 0))) {
+	if (div[IN] == 0 || (!ideal && !div_avail)) {
 		pair_err("failed to support input sample rate %dHz by asrck_%x\n",
 				inrate, clk_index[ideal ? OUT : IN]);
 		return -EINVAL;
@@ -436,13 +485,12 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 	clk = asrc_priv->asrck_clk[clk_index[OUT]];
 	clk_rate = clk_get_rate(clk);
 	if (ideal && use_ideal_rate)
-		rem[OUT] = do_div(clk_rate, IDEAL_RATIO_RATE);
+		div_avail = fsl_asrc_divider_avail(clk_rate, IDEAL_RATIO_RATE, &div[OUT]);
 	else
-		rem[OUT] = do_div(clk_rate, outrate);
-	div[OUT] = clk_rate;
+		div_avail = fsl_asrc_divider_avail(clk_rate, outrate, &div[OUT]);
 
 	/* Output divider has the same limitation as the input one */
-	if (div[OUT] == 0 || (!ideal && (div[OUT] > 1024 || rem[OUT] != 0))) {
+	if (div[OUT] == 0 || (!ideal && !div_avail)) {
 		pair_err("failed to support output sample rate %dHz by asrck_%x\n",
 				outrate, clk_index[OUT]);
 		return -EINVAL;
@@ -621,8 +669,7 @@ static void fsl_asrc_select_clk(struct fsl_asrc_priv *asrc_priv,
 			clk_index = asrc_priv->clk_map[j][i];
 			clk_rate = clk_get_rate(asrc_priv->asrck_clk[clk_index]);
 			/* Only match a perfect clock source with no remainder */
-			if (clk_rate != 0 && (clk_rate / rate[j]) <= 1024 &&
-			    (clk_rate % rate[j]) == 0)
+			if (fsl_asrc_divider_avail(clk_rate, rate[j], NULL))
 				break;
 		}
 
-- 
GitLab


From e16e836d510c5b5373fde821fe19dd1aa560825c Mon Sep 17 00:00:00 2001
From: Conor Dooley <conor.dooley@microchip.com>
Date: Thu, 23 Dec 2021 15:42:44 +0000
Subject: [PATCH 3163/4878] clk: bm1880: remove kfrees on static allocations

[ Upstream commit c861c1be3897845313a0df47804b1db37c7052e1 ]

bm1880_clk_unregister_pll & bm1880_clk_unregister_div both try to
free statically allocated variables, so remove those kfrees.

For example, if we take L703 kfree(div_hw):
- div_hw is a bm1880_div_hw_clock pointer
- in bm1880_clk_register_plls this is pointed to an element of arg1:
  struct bm1880_div_hw_clock *clks
- in the probe, where bm1880_clk_register_plls is called arg1 is
  bm1880_div_clks, defined on L371:
  static struct bm1880_div_hw_clock bm1880_div_clks[]

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Fixes: 1ab4601da55b ("clk: Add common clock driver for BM1880 SoC")
Link: https://lore.kernel.org/r/20211223154244.1024062-1-conor.dooley@microchip.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/clk-bm1880.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/clk/clk-bm1880.c b/drivers/clk/clk-bm1880.c
index e6d6599d310a1..fad78a22218e8 100644
--- a/drivers/clk/clk-bm1880.c
+++ b/drivers/clk/clk-bm1880.c
@@ -522,14 +522,6 @@ static struct clk_hw *bm1880_clk_register_pll(struct bm1880_pll_hw_clock *pll_cl
 	return hw;
 }
 
-static void bm1880_clk_unregister_pll(struct clk_hw *hw)
-{
-	struct bm1880_pll_hw_clock *pll_hw = to_bm1880_pll_clk(hw);
-
-	clk_hw_unregister(hw);
-	kfree(pll_hw);
-}
-
 static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
 				    int num_clks,
 				    struct bm1880_clock_data *data)
@@ -555,7 +547,7 @@ static int bm1880_clk_register_plls(struct bm1880_pll_hw_clock *clks,
 
 err_clk:
 	while (i--)
-		bm1880_clk_unregister_pll(data->hw_data.hws[clks[i].pll.id]);
+		clk_hw_unregister(data->hw_data.hws[clks[i].pll.id]);
 
 	return PTR_ERR(hw);
 }
@@ -695,14 +687,6 @@ static struct clk_hw *bm1880_clk_register_div(struct bm1880_div_hw_clock *div_cl
 	return hw;
 }
 
-static void bm1880_clk_unregister_div(struct clk_hw *hw)
-{
-	struct bm1880_div_hw_clock *div_hw = to_bm1880_div_clk(hw);
-
-	clk_hw_unregister(hw);
-	kfree(div_hw);
-}
-
 static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
 				    int num_clks,
 				    struct bm1880_clock_data *data)
@@ -729,7 +713,7 @@ static int bm1880_clk_register_divs(struct bm1880_div_hw_clock *clks,
 
 err_clk:
 	while (i--)
-		bm1880_clk_unregister_div(data->hw_data.hws[clks[i].div.id]);
+		clk_hw_unregister(data->hw_data.hws[clks[i].div.id]);
 
 	return PTR_ERR(hw);
 }
-- 
GitLab


From b5793aff11d7693df7e64261bc466d4869db9117 Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Thu, 30 Dec 2021 18:31:52 +0200
Subject: [PATCH 3164/4878] of: base: Fix phandle argument length mismatch
 error message

[ Upstream commit 94a4950a4acff39b5847cc1fee4f65e160813493 ]

The cell_count field of of_phandle_iterator is the number of cells we
expect in the phandle arguments list when cells_name is missing. The
error message should show the number of cells we actually see.

Fixes: af3be70a3211 ("of: Improve of_phandle_iterator_next() error message")
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/96519ac55be90a63fa44afe01480c30d08535465.1640881913.git.baruch@tkos.co.il
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/base.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 161a23631472d..60cb9b44d4ecc 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1328,9 +1328,9 @@ int of_phandle_iterator_next(struct of_phandle_iterator *it)
 		 * property data length
 		 */
 		if (it->cur + count > it->list_end) {
-			pr_err("%pOF: %s = %d found %d\n",
+			pr_err("%pOF: %s = %d found %td\n",
 			       it->parent, it->cells_name,
-			       count, it->cell_count);
+			       count, it->list_end - it->cur);
 			goto err;
 		}
 	}
-- 
GitLab


From 852d7d436fd19be043b33fd31133fb159b91a03b Mon Sep 17 00:00:00 2001
From: "Sicelo A. Mhlongo" <absicsz@gmail.com>
Date: Sun, 12 Dec 2021 23:40:06 +0100
Subject: [PATCH 3165/4878] ARM: dts: omap3-n900: Fix lp5523 for multi color

[ Upstream commit e9af026a3b24f59d7af4609f73e0ef60a4d6d516 ]

Since the LED multicolor framework support was added in commit
92a81562e695 ("leds: lp55xx: Add multicolor framework support to lp55xx")
LEDs on this platform stopped working.

Fixes: 92a81562e695 ("leds: lp55xx: Add multicolor framework support to lp55xx")
Fixes: ac219bf3c9bd ("leds: lp55xx: Convert to use GPIO descriptors")
Signed-off-by: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Sicelo A. Mhlongo <absicsz@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap3-n900.dts | 50 +++++++++++++++++++++++++-------
 1 file changed, 40 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 32335d4ce478b..d40c3d2c4914e 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -8,6 +8,7 @@
 
 #include "omap34xx.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
 
 /*
  * Default secure signed bootloader (Nokia X-Loader) does not enable L3 firewall
@@ -630,63 +631,92 @@
 	};
 
 	lp5523: lp5523@32 {
+		#address-cells = <1>;
+		#size-cells = <0>;
 		compatible = "national,lp5523";
 		reg = <0x32>;
 		clock-mode = /bits/ 8 <0>; /* LP55XX_CLOCK_AUTO */
-		enable-gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>; /* 41 */
+		enable-gpios = <&gpio2 9 GPIO_ACTIVE_HIGH>; /* 41 */
 
-		chan0 {
+		led@0 {
+			reg = <0>;
 			chan-name = "lp5523:kb1";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_KBD_BACKLIGHT;
 		};
 
-		chan1 {
+		led@1 {
+			reg = <1>;
 			chan-name = "lp5523:kb2";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_KBD_BACKLIGHT;
 		};
 
-		chan2 {
+		led@2 {
+			reg = <2>;
 			chan-name = "lp5523:kb3";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_KBD_BACKLIGHT;
 		};
 
-		chan3 {
+		led@3 {
+			reg = <3>;
 			chan-name = "lp5523:kb4";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_KBD_BACKLIGHT;
 		};
 
-		chan4 {
+		led@4 {
+			reg = <4>;
 			chan-name = "lp5523:b";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
 		};
 
-		chan5 {
+		led@5 {
+			reg = <5>;
 			chan-name = "lp5523:g";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_STATUS;
 		};
 
-		chan6 {
+		led@6 {
+			reg = <6>;
 			chan-name = "lp5523:r";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_STATUS;
 		};
 
-		chan7 {
+		led@7 {
+			reg = <7>;
 			chan-name = "lp5523:kb5";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_KBD_BACKLIGHT;
 		};
 
-		chan8 {
+		led@8 {
+			reg = <8>;
 			chan-name = "lp5523:kb6";
 			led-cur = /bits/ 8 <50>;
 			max-cur = /bits/ 8 <100>;
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_KBD_BACKLIGHT;
 		};
 	};
 
-- 
GitLab


From f9c9a46efd94f2909e0da313577a07ebf1ddf829 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Wed, 13 Oct 2021 16:55:46 +0800
Subject: [PATCH 3166/4878] Bluetooth: Fix debugfs entry leak in
 hci_register_dev()

[ Upstream commit 5a4bb6a8e981d3d0d492aa38412ee80b21033177 ]

Fault injection test report debugfs entry leak as follows:

debugfs: Directory 'hci0' with parent 'bluetooth' already present!

When register_pm_notifier() failed in hci_register_dev(), the debugfs
create by debugfs_create_dir() do not removed in the error handing path.

Add the remove debugfs code to fix it.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bluetooth/hci_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2ad66f64879f1..2e7998bad133b 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3810,6 +3810,7 @@ int hci_register_dev(struct hci_dev *hdev)
 	return id;
 
 err_wqueue:
+	debugfs_remove_recursive(hdev->debugfs);
 	destroy_workqueue(hdev->workqueue);
 	destroy_workqueue(hdev->req_workqueue);
 err:
-- 
GitLab


From db1e878373bfa86b83b862d1dbae55c3497c815d Mon Sep 17 00:00:00 2001
From: Alexander Aring <aahringo@redhat.com>
Date: Tue, 2 Nov 2021 15:17:24 -0400
Subject: [PATCH 3167/4878] fs: dlm: filter user dlm messages for kernel locks

[ Upstream commit 6c2e3bf68f3e5e5a647aa52be246d5f552d7496d ]

This patch fixes the following crash by receiving a invalid message:

[  160.672220] ==================================================================
[  160.676206] BUG: KASAN: user-memory-access in dlm_user_add_ast+0xc3/0x370
[  160.679659] Read of size 8 at addr 00000000deadbeef by task kworker/u32:13/319
[  160.681447]
[  160.681824] CPU: 10 PID: 319 Comm: kworker/u32:13 Not tainted 5.14.0-rc2+ #399
[  160.683472] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.14.0-1.module+el8.6.0+12648+6ede71a5 04/01/2014
[  160.685574] Workqueue: dlm_recv process_recv_sockets
[  160.686721] Call Trace:
[  160.687310]  dump_stack_lvl+0x56/0x6f
[  160.688169]  ? dlm_user_add_ast+0xc3/0x370
[  160.689116]  kasan_report.cold.14+0x116/0x11b
[  160.690138]  ? dlm_user_add_ast+0xc3/0x370
[  160.690832]  dlm_user_add_ast+0xc3/0x370
[  160.691502]  _receive_unlock_reply+0x103/0x170
[  160.692241]  _receive_message+0x11df/0x1ec0
[  160.692926]  ? rcu_read_lock_sched_held+0xa1/0xd0
[  160.693700]  ? rcu_read_lock_bh_held+0xb0/0xb0
[  160.694427]  ? lock_acquire+0x175/0x400
[  160.695058]  ? do_purge.isra.51+0x200/0x200
[  160.695744]  ? lock_acquired+0x360/0x5d0
[  160.696400]  ? lock_contended+0x6a0/0x6a0
[  160.697055]  ? lock_release+0x21d/0x5e0
[  160.697686]  ? lock_is_held_type+0xe0/0x110
[  160.698352]  ? lock_is_held_type+0xe0/0x110
[  160.699026]  ? ___might_sleep+0x1cc/0x1e0
[  160.699698]  ? dlm_wait_requestqueue+0x94/0x140
[  160.700451]  ? dlm_process_requestqueue+0x240/0x240
[  160.701249]  ? down_write_killable+0x2b0/0x2b0
[  160.701988]  ? do_raw_spin_unlock+0xa2/0x130
[  160.702690]  dlm_receive_buffer+0x1a5/0x210
[  160.703385]  dlm_process_incoming_buffer+0x726/0x9f0
[  160.704210]  receive_from_sock+0x1c0/0x3b0
[  160.704886]  ? dlm_tcp_shutdown+0x30/0x30
[  160.705561]  ? lock_acquire+0x175/0x400
[  160.706197]  ? rcu_read_lock_sched_held+0xa1/0xd0
[  160.706941]  ? rcu_read_lock_bh_held+0xb0/0xb0
[  160.707681]  process_recv_sockets+0x32/0x40
[  160.708366]  process_one_work+0x55e/0xad0
[  160.709045]  ? pwq_dec_nr_in_flight+0x110/0x110
[  160.709820]  worker_thread+0x65/0x5e0
[  160.710423]  ? process_one_work+0xad0/0xad0
[  160.711087]  kthread+0x1ed/0x220
[  160.711628]  ? set_kthread_struct+0x80/0x80
[  160.712314]  ret_from_fork+0x22/0x30

The issue is that we received a DLM message for a user lock but the
destination lock is a kernel lock. Note that the address which is trying
to derefence is 00000000deadbeef, which is in a kernel lock
lkb->lkb_astparam, this field should never be derefenced by the DLM
kernel stack. In case of a user lock lkb->lkb_astparam is lkb->lkb_ua
(memory is shared by a union field). The struct lkb_ua will be handled
by the DLM kernel stack but on a kernel lock it will contain invalid
data and ends in most likely crashing the kernel.

It can be reproduced with two cluster nodes.

node 2:
dlm_tool join test
echo "862 fooobaar 1 2 1" > /sys/kernel/debug/dlm/test_locks
echo "862 3 1" > /sys/kernel/debug/dlm/test_waiters

node 1:
dlm_tool join test

python:
foo = DLM(h_cmd=3, o_nextcmd=1, h_nodeid=1, h_lockspace=0x77222027, \
          m_type=7, m_flags=0x1, m_remid=0x862, m_result=0xFFFEFFFE)
newFile = open("/sys/kernel/debug/dlm/comms/2/rawmsg", "wb")
newFile.write(bytes(foo))

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/lock.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 002123efc6b05..1e9d8999b9390 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -3975,6 +3975,14 @@ static int validate_message(struct dlm_lkb *lkb, struct dlm_message *ms)
 	int from = ms->m_header.h_nodeid;
 	int error = 0;
 
+	/* currently mixing of user/kernel locks are not supported */
+	if (ms->m_flags & DLM_IFL_USER && ~lkb->lkb_flags & DLM_IFL_USER) {
+		log_error(lkb->lkb_resource->res_ls,
+			  "got user dlm message for a kernel lock");
+		error = -EINVAL;
+		goto out;
+	}
+
 	switch (ms->m_type) {
 	case DLM_MSG_CONVERT:
 	case DLM_MSG_UNLOCK:
@@ -4003,6 +4011,7 @@ static int validate_message(struct dlm_lkb *lkb, struct dlm_message *ms)
 		error = -EINVAL;
 	}
 
+out:
 	if (error)
 		log_error(lkb->lkb_resource->res_ls,
 			  "ignore invalid message %d from %d %x %x %x %d",
-- 
GitLab


From b207356933f4593071bbd95da2bb12eaa762a66f Mon Sep 17 00:00:00 2001
From: Qiang Yu <yuq825@gmail.com>
Date: Sun, 31 Oct 2021 12:16:04 +0800
Subject: [PATCH 3168/4878] drm/lima: fix warning when CONFIG_DEBUG_SG=y &
 CONFIG_DMA_API_DEBUG=y

[ Upstream commit 89636a06fa2ee7826a19c39c19a9bc99ab9340a9 ]

Otherwise get following warning:

DMA-API: lima 1c40000.gpu: mapping sg segment longer than device claims to support [len=4149248] [max=65536]

See: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5496

Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reported-by: Roman Stratiienko <r.stratiienko@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211031041604.187216-1-yuq825@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/lima/lima_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/lima/lima_device.c b/drivers/gpu/drm/lima/lima_device.c
index 65fdca366e41f..36c9905894278 100644
--- a/drivers/gpu/drm/lima/lima_device.c
+++ b/drivers/gpu/drm/lima/lima_device.c
@@ -357,6 +357,7 @@ int lima_device_init(struct lima_device *ldev)
 	int err, i;
 
 	dma_set_coherent_mask(ldev->dev, DMA_BIT_MASK(32));
+	dma_set_max_seg_size(ldev->dev, UINT_MAX);
 
 	err = lima_clk_init(ldev);
 	if (err)
-- 
GitLab


From a9d2ccfc7d2caa3bf2443dc0cf4cbfc56c3c9518 Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andrii@kernel.org>
Date: Sun, 7 Nov 2021 08:55:21 -0800
Subject: [PATCH 3169/4878] selftests/bpf: Fix bpf_object leak in skb_ctx
 selftest

[ Upstream commit 8c7a95520184b6677ca6075e12df9c208d57d088 ]

skb_ctx selftest didn't close bpf_object implicitly allocated by
bpf_prog_test_load() helper. Fix the problem by explicitly calling
bpf_object__close() at the end of the test.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Hengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20211107165521.9240-10-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/prog_tests/skb_ctx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/skb_ctx.c b/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
index fafeddaad6a99..23915be6172d6 100644
--- a/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
+++ b/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
@@ -105,4 +105,6 @@ void test_skb_ctx(void)
 		   "ctx_out_mark",
 		   "skb->mark == %u, expected %d\n",
 		   skb.mark, 10);
+
+	bpf_object__close(obj);
 }
-- 
GitLab


From 2f13f10fddf4689fbc06204fe75ad595dbe93091 Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Thu, 28 Oct 2021 18:37:49 -0400
Subject: [PATCH 3170/4878] ar5523: Fix null-ptr-deref with unexpected
 WDCMSG_TARGET_START reply

[ Upstream commit ae80b6033834342601e99f74f6a62ff5092b1cee ]

Unexpected WDCMSG_TARGET_START replay can lead to null-ptr-deref
when ar->tx_cmd->odata is NULL. The patch adds a null check to
prevent such case.

KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
 ar5523_cmd+0x46a/0x581 [ar5523]
 ar5523_probe.cold+0x1b7/0x18da [ar5523]
 ? ar5523_cmd_rx_cb+0x7a0/0x7a0 [ar5523]
 ? __pm_runtime_set_status+0x54a/0x8f0
 ? _raw_spin_trylock_bh+0x120/0x120
 ? pm_runtime_barrier+0x220/0x220
 ? __pm_runtime_resume+0xb1/0xf0
 usb_probe_interface+0x25b/0x710
 really_probe+0x209/0x5d0
 driver_probe_device+0xc6/0x1b0
 device_driver_attach+0xe2/0x120

I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.

After fixing the code (fourth byte in usb packet) to WDCMSG_TARGET_START,
I got the null-ptr-deref bug. I believe the bug is triggerable whenever
cmd->odata is NULL. After patching, I tested with the same input and no
longer see the KASAN report.

This was NOT tested on a real device.

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXsmPQ3awHFLuAj2@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ar5523/ar5523.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index 49cc4b7ed5163..1baec4b412c8d 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -153,6 +153,10 @@ static void ar5523_cmd_rx_cb(struct urb *urb)
 			ar5523_err(ar, "Invalid reply to WDCMSG_TARGET_START");
 			return;
 		}
+		if (!cmd->odata) {
+			ar5523_err(ar, "Unexpected WDCMSG_TARGET_START reply");
+			return;
+		}
 		memcpy(cmd->odata, hdr + 1, sizeof(u32));
 		cmd->olen = sizeof(u32);
 		cmd->res = 0;
-- 
GitLab


From e3ba02b043f2fc8cd55f7f64d258b2efd70cdd4c Mon Sep 17 00:00:00 2001
From: Neil Armstrong <narmstrong@baylibre.com>
Date: Fri, 29 Oct 2021 15:59:47 +0200
Subject: [PATCH 3171/4878] drm/bridge: dw-hdmi: handle ELD when
 DRM_BRIDGE_ATTACH_NO_CONNECTOR

[ Upstream commit 3f2532d65a571ca02258b547b5b68ab2e9406fdb ]

The current ELD handling takes the internal connector ELD buffer and
shares it to the I2S and AHB sub-driver.

But with DRM_BRIDGE_ATTACH_NO_CONNECTOR, the connector is created
elsewhere (or not), and an eventual connector is known only
if the bridge chain up to a connector is enabled.

The current dw-hdmi code gets the current connector from
atomic_enable() so use the already stored connector pointer and
replace the buffer pointer with a callback returning the current
connector ELD buffer.

Since a connector is not always available, either pass an empty
ELD to the alsa HDMI driver or don't call snd_pcm_hw_constraint_eld()
in AHB driver.

Reported-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[narmstrong: fixed typo in commit log]
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211029135947.3022875-1-narmstrong@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c | 10 +++++++---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h     |  4 ++--
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c |  9 ++++++++-
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c           | 12 ++++++++++--
 4 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
index d0db1acf11d73..7d2ed0ed2fe26 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
@@ -320,13 +320,17 @@ static int dw_hdmi_open(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_dw_hdmi *dw = substream->private_data;
 	void __iomem *base = dw->data.base;
+	u8 *eld;
 	int ret;
 
 	runtime->hw = dw_hdmi_hw;
 
-	ret = snd_pcm_hw_constraint_eld(runtime, dw->data.eld);
-	if (ret < 0)
-		return ret;
+	eld = dw->data.get_eld(dw->data.hdmi);
+	if (eld) {
+		ret = snd_pcm_hw_constraint_eld(runtime, eld);
+		if (ret < 0)
+			return ret;
+	}
 
 	ret = snd_pcm_limit_hw_rates(runtime);
 	if (ret < 0)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
index cb07dc0da5a70..f72d27208ebef 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
@@ -9,15 +9,15 @@ struct dw_hdmi_audio_data {
 	void __iomem *base;
 	int irq;
 	struct dw_hdmi *hdmi;
-	u8 *eld;
+	u8 *(*get_eld)(struct dw_hdmi *hdmi);
 };
 
 struct dw_hdmi_i2s_audio_data {
 	struct dw_hdmi *hdmi;
-	u8 *eld;
 
 	void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
 	u8 (*read)(struct dw_hdmi *hdmi, int offset);
+	u8 *(*get_eld)(struct dw_hdmi *hdmi);
 };
 
 #endif
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
index 9fef6413741dc..9682416056ed6 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
@@ -135,8 +135,15 @@ static int dw_hdmi_i2s_get_eld(struct device *dev, void *data, uint8_t *buf,
 			       size_t len)
 {
 	struct dw_hdmi_i2s_audio_data *audio = data;
+	u8 *eld;
+
+	eld = audio->get_eld(audio->hdmi);
+	if (eld)
+		memcpy(buf, eld, min_t(size_t, MAX_ELD_BYTES, len));
+	else
+		/* Pass en empty ELD if connector not available */
+		memset(buf, 0, len);
 
-	memcpy(buf, audio->eld, min_t(size_t, MAX_ELD_BYTES, len));
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 0c79a9ba48bb6..29c0eb4bd7546 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -756,6 +756,14 @@ static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi, bool enable)
 	hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
 }
 
+static u8 *hdmi_audio_get_eld(struct dw_hdmi *hdmi)
+{
+	if (!hdmi->curr_conn)
+		return NULL;
+
+	return hdmi->curr_conn->eld;
+}
+
 static void dw_hdmi_ahb_audio_enable(struct dw_hdmi *hdmi)
 {
 	hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n);
@@ -3395,7 +3403,7 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 		audio.base = hdmi->regs;
 		audio.irq = irq;
 		audio.hdmi = hdmi;
-		audio.eld = hdmi->connector.eld;
+		audio.get_eld = hdmi_audio_get_eld;
 		hdmi->enable_audio = dw_hdmi_ahb_audio_enable;
 		hdmi->disable_audio = dw_hdmi_ahb_audio_disable;
 
@@ -3408,7 +3416,7 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 		struct dw_hdmi_i2s_audio_data audio;
 
 		audio.hdmi	= hdmi;
-		audio.eld	= hdmi->connector.eld;
+		audio.get_eld	= hdmi_audio_get_eld;
 		audio.write	= hdmi_writeb;
 		audio.read	= hdmi_readb;
 		hdmi->enable_audio = dw_hdmi_i2s_audio_enable;
-- 
GitLab


From 518e059789f6d114bc304edeea913da0bfc5e937 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 24 Feb 2021 19:29:52 +1000
Subject: [PATCH 3172/4878] drm/nouveau/pmu/gm200-: avoid touching PMU outside
 of DEVINIT/PREOS/ACR

[ Upstream commit 1d2271d2fb85e54bfc9630a6c30ac0feb9ffb983 ]

There have been reports of the WFI timing out on some boards, and a
patch was proposed to just remove it.  This stuff is rather fragile,
and I believe the WFI might be needed with our FW prior to GM200.

However, we probably should not be touching PMU during init on GPUs
where we depend on NVIDIA FW, outside of limited circumstances, so
this should be a somewhat safer change that achieves the desired
result.

Reported-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/10
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../gpu/drm/nouveau/nvkm/subdev/pmu/base.c    | 37 +++++++++++--------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
index a0fe607c9c07f..3bfc55c571b5e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/base.c
@@ -94,20 +94,13 @@ nvkm_pmu_fini(struct nvkm_subdev *subdev, bool suspend)
 	return 0;
 }
 
-static int
+static void
 nvkm_pmu_reset(struct nvkm_pmu *pmu)
 {
 	struct nvkm_device *device = pmu->subdev.device;
 
 	if (!pmu->func->enabled(pmu))
-		return 0;
-
-	/* Inhibit interrupts, and wait for idle. */
-	nvkm_wr32(device, 0x10a014, 0x0000ffff);
-	nvkm_msec(device, 2000,
-		if (!nvkm_rd32(device, 0x10a04c))
-			break;
-	);
+		return;
 
 	/* Reset. */
 	if (pmu->func->reset)
@@ -118,25 +111,37 @@ nvkm_pmu_reset(struct nvkm_pmu *pmu)
 		if (!(nvkm_rd32(device, 0x10a10c) & 0x00000006))
 			break;
 	);
-
-	return 0;
 }
 
 static int
 nvkm_pmu_preinit(struct nvkm_subdev *subdev)
 {
 	struct nvkm_pmu *pmu = nvkm_pmu(subdev);
-	return nvkm_pmu_reset(pmu);
+	nvkm_pmu_reset(pmu);
+	return 0;
 }
 
 static int
 nvkm_pmu_init(struct nvkm_subdev *subdev)
 {
 	struct nvkm_pmu *pmu = nvkm_pmu(subdev);
-	int ret = nvkm_pmu_reset(pmu);
-	if (ret == 0 && pmu->func->init)
-		ret = pmu->func->init(pmu);
-	return ret;
+	struct nvkm_device *device = pmu->subdev.device;
+
+	if (!pmu->func->init)
+		return 0;
+
+	if (pmu->func->enabled(pmu)) {
+		/* Inhibit interrupts, and wait for idle. */
+		nvkm_wr32(device, 0x10a014, 0x0000ffff);
+		nvkm_msec(device, 2000,
+			if (!nvkm_rd32(device, 0x10a04c))
+				break;
+		);
+
+		nvkm_pmu_reset(pmu);
+	}
+
+	return pmu->func->init(pmu);
 }
 
 static void *
-- 
GitLab


From ac08140677c0b4e9d1670030eb60ea277d1fdde9 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Thu, 4 Nov 2021 11:45:27 +0000
Subject: [PATCH 3173/4878] media: atomisp: fix try_fmt logic

[ Upstream commit c9e9094c4e42124af909b2f5f6ded0498e0854ac ]

The internal try_fmt logic is not meant to provide everything
that the V4L2 API should provide. Also, it doesn't decrement
the pads that are used only internally by the driver, but aren't
part of the device's output.

Fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 72 ++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 830df02626634..8a0648fd7c813 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -863,6 +863,72 @@ static int atomisp_g_fmt_file(struct file *file, void *fh,
 	return 0;
 }
 
+static int atomisp_adjust_fmt(struct v4l2_format *f)
+{
+	const struct atomisp_format_bridge *format_bridge;
+	u32 padded_width;
+
+	format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
+
+	padded_width = f->fmt.pix.width + pad_w;
+
+	if (format_bridge->planar) {
+		f->fmt.pix.bytesperline = padded_width;
+		f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height *
+						  DIV_ROUND_UP(format_bridge->depth *
+						  padded_width, 8));
+	} else {
+		f->fmt.pix.bytesperline = DIV_ROUND_UP(format_bridge->depth *
+						      padded_width, 8);
+		f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height * f->fmt.pix.bytesperline);
+	}
+
+	if (f->fmt.pix.field == V4L2_FIELD_ANY)
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+
+	format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
+	if (!format_bridge)
+		return -EINVAL;
+
+	/* Currently, raw formats are broken!!! */
+	if (format_bridge->sh_fmt == IA_CSS_FRAME_FORMAT_RAW) {
+		f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
+
+		format_bridge = atomisp_get_format_bridge(f->fmt.pix.pixelformat);
+		if (!format_bridge)
+			return -EINVAL;
+	}
+
+	padded_width = f->fmt.pix.width + pad_w;
+
+	if (format_bridge->planar) {
+		f->fmt.pix.bytesperline = padded_width;
+		f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height *
+						  DIV_ROUND_UP(format_bridge->depth *
+						  padded_width, 8));
+	} else {
+		f->fmt.pix.bytesperline = DIV_ROUND_UP(format_bridge->depth *
+						      padded_width, 8);
+		f->fmt.pix.sizeimage = PAGE_ALIGN(f->fmt.pix.height * f->fmt.pix.bytesperline);
+	}
+
+	if (f->fmt.pix.field == V4L2_FIELD_ANY)
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+
+	/*
+	 * FIXME: do we need to setup this differently, depending on the
+	 * sensor or the pipeline?
+	 */
+	f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
+	f->fmt.pix.ycbcr_enc = V4L2_YCBCR_ENC_709;
+	f->fmt.pix.xfer_func = V4L2_XFER_FUNC_709;
+
+	f->fmt.pix.width -= pad_w;
+	f->fmt.pix.height -= pad_h;
+
+	return 0;
+}
+
 /* This function looks up the closest available resolution. */
 static int atomisp_try_fmt_cap(struct file *file, void *fh,
 			       struct v4l2_format *f)
@@ -874,7 +940,11 @@ static int atomisp_try_fmt_cap(struct file *file, void *fh,
 	rt_mutex_lock(&isp->mutex);
 	ret = atomisp_try_fmt(vdev, f, NULL);
 	rt_mutex_unlock(&isp->mutex);
-	return ret;
+
+	if (ret)
+		return ret;
+
+	return atomisp_adjust_fmt(f);
 }
 
 static int atomisp_s_fmt_cap(struct file *file, void *fh,
-- 
GitLab


From 51ef6582a2189677fc8d46d3892b4e6a4ae1908a Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Fri, 29 Oct 2021 08:09:39 +0100
Subject: [PATCH 3174/4878] media: atomisp: set per-device's default mode

[ Upstream commit 2c45e343c581091835c9047ed5298518aa133163 ]

The atomisp driver originally used the s_parm command to
initialize the run_mode type to the driver. So, before start
setting up the streaming, s_parm should be called.

So, even having 5 "normal" video devices, one meant to be used
for each type, the run_mode was actually selected when
s_parm is called.

Without setting the run mode, applications that don't call
VIDIOC_SET_PARM with a custom atomisp parameters won't work, as
the pipeline won't be set:

	atomisp-isp2 0000:00:03.0: can't create streams
	atomisp-isp2 0000:00:03.0: __get_frame_info 1600x1200 (padded to 0) returned -22

However, commit 8a7c5594c020 ("media: v4l2-ioctl: clear fields in s_parm")
broke support for it, with a good reason, as drivers shoudn't be
extending the API for their own purposes.

So, as an step to allow generic apps to use this driver, put
the device's run_mode in preview after open.

After this patch, using v4l2grab starts to work on preview
mode (/dev/video2):

	$ v4l2grab -f YUYV -x 1600 -y 1200 -d /dev/video2 -n 1 -u
	$ feh out000.pnm

So, let's just setup the default run_mode that each video devnode
should assume, setting it at open() time.

Reported-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/atomisp_fops.c  |  5 +++++
 .../staging/media/atomisp/pci/atomisp_subdev.c    | 15 ++++++++++-----
 .../staging/media/atomisp/pci/atomisp_subdev.h    |  3 +++
 drivers/staging/media/atomisp/pci/atomisp_v4l2.c  |  4 +++-
 drivers/staging/media/atomisp/pci/atomisp_v4l2.h  |  3 ++-
 5 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index 52d24c1ca0d64..b751df31cc24c 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -877,6 +877,11 @@ done:
 	else
 		pipe->users++;
 	rt_mutex_unlock(&isp->mutex);
+
+	/* Ensure that a mode is set */
+	if (asd)
+		v4l2_ctrl_s_ctrl(asd->run_mode, pipe->default_run_mode);
+
 	return 0;
 
 css_error:
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index dcc2dd981ca60..628e85799274d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -1178,23 +1178,28 @@ static int isp_subdev_init_entities(struct atomisp_sub_device *asd)
 
 	atomisp_init_acc_pipe(asd, &asd->video_acc);
 
-	ret = atomisp_video_init(&asd->video_in, "MEMORY");
+	ret = atomisp_video_init(&asd->video_in, "MEMORY",
+				 ATOMISP_RUN_MODE_SDV);
 	if (ret < 0)
 		return ret;
 
-	ret = atomisp_video_init(&asd->video_out_capture, "CAPTURE");
+	ret = atomisp_video_init(&asd->video_out_capture, "CAPTURE",
+				 ATOMISP_RUN_MODE_STILL_CAPTURE);
 	if (ret < 0)
 		return ret;
 
-	ret = atomisp_video_init(&asd->video_out_vf, "VIEWFINDER");
+	ret = atomisp_video_init(&asd->video_out_vf, "VIEWFINDER",
+				 ATOMISP_RUN_MODE_CONTINUOUS_CAPTURE);
 	if (ret < 0)
 		return ret;
 
-	ret = atomisp_video_init(&asd->video_out_preview, "PREVIEW");
+	ret = atomisp_video_init(&asd->video_out_preview, "PREVIEW",
+				 ATOMISP_RUN_MODE_PREVIEW);
 	if (ret < 0)
 		return ret;
 
-	ret = atomisp_video_init(&asd->video_out_video_capture, "VIDEO");
+	ret = atomisp_video_init(&asd->video_out_video_capture, "VIDEO",
+				 ATOMISP_RUN_MODE_VIDEO);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.h b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
index 330a77eed8aa6..12215d7406169 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
@@ -81,6 +81,9 @@ struct atomisp_video_pipe {
 	/* the link list to store per_frame parameters */
 	struct list_head per_frame_params;
 
+	/* Store here the initial run mode */
+	unsigned int default_run_mode;
+
 	unsigned int buffers_in_css;
 
 	/* irq_lock is used to protect video buffer state change operations and
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 687e94e8b6ce5..8aeea74cfd06b 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -447,7 +447,8 @@ const struct atomisp_dfs_config dfs_config_cht_soc = {
 	.dfs_table_size = ARRAY_SIZE(dfs_rules_cht_soc),
 };
 
-int atomisp_video_init(struct atomisp_video_pipe *video, const char *name)
+int atomisp_video_init(struct atomisp_video_pipe *video, const char *name,
+		       unsigned int run_mode)
 {
 	int ret;
 	const char *direction;
@@ -478,6 +479,7 @@ int atomisp_video_init(struct atomisp_video_pipe *video, const char *name)
 		 "ATOMISP ISP %s %s", name, direction);
 	video->vdev.release = video_device_release_empty;
 	video_set_drvdata(&video->vdev, video->isp);
+	video->default_run_mode = run_mode;
 
 	return 0;
 }
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.h b/drivers/staging/media/atomisp/pci/atomisp_v4l2.h
index 81bb356b81720..72611b8286a4a 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.h
@@ -27,7 +27,8 @@ struct v4l2_device;
 struct atomisp_device;
 struct firmware;
 
-int atomisp_video_init(struct atomisp_video_pipe *video, const char *name);
+int atomisp_video_init(struct atomisp_video_pipe *video, const char *name,
+		       unsigned int run_mode);
 void atomisp_acc_init(struct atomisp_acc_pipe *video, const char *name);
 void atomisp_video_unregister(struct atomisp_video_pipe *video);
 void atomisp_acc_unregister(struct atomisp_acc_pipe *video);
-- 
GitLab


From ff2138d6c2a3a57347de902ecbda873e5c1725b6 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 7 Nov 2021 17:15:48 +0000
Subject: [PATCH 3175/4878] media: atomisp-ov2680: Fix ov2680_set_fmt()
 clobbering the exposure

[ Upstream commit 4492289c31364d28c2680b43b18883385a5d216c ]

Now that we restore the default or last user set exposure setting on
power_up() there is no need for the registers written by ov2680_set_fmt()
to write to the exposure register.

Not doing so fixes the exposure always being reset to the value from
the res->regs array after a set_fmt().

Link: https://lore.kernel.org/linux-media/20211107171549.267583-11-hdegoede@redhat.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/i2c/ov2680.h | 24 ----------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/staging/media/atomisp/i2c/ov2680.h b/drivers/staging/media/atomisp/i2c/ov2680.h
index 49920245e0647..cafb798a71abe 100644
--- a/drivers/staging/media/atomisp/i2c/ov2680.h
+++ b/drivers/staging/media/atomisp/i2c/ov2680.h
@@ -289,8 +289,6 @@ static struct ov2680_reg const ov2680_global_setting[] = {
  */
 static struct ov2680_reg const ov2680_QCIF_30fps[] = {
 	{0x3086, 0x01},
-	{0x3501, 0x24},
-	{0x3502, 0x40},
 	{0x370a, 0x23},
 	{0x3801, 0xa0},
 	{0x3802, 0x00},
@@ -334,8 +332,6 @@ static struct ov2680_reg const ov2680_QCIF_30fps[] = {
  */
 static struct ov2680_reg const ov2680_CIF_30fps[] = {
 	{0x3086, 0x01},
-	{0x3501, 0x24},
-	{0x3502, 0x40},
 	{0x370a, 0x23},
 	{0x3801, 0xa0},
 	{0x3802, 0x00},
@@ -377,8 +373,6 @@ static struct ov2680_reg const ov2680_CIF_30fps[] = {
  */
 static struct ov2680_reg const ov2680_QVGA_30fps[] = {
 	{0x3086, 0x01},
-	{0x3501, 0x24},
-	{0x3502, 0x40},
 	{0x370a, 0x23},
 	{0x3801, 0xa0},
 	{0x3802, 0x00},
@@ -420,8 +414,6 @@ static struct ov2680_reg const ov2680_QVGA_30fps[] = {
  */
 static struct ov2680_reg const ov2680_656x496_30fps[] = {
 	{0x3086, 0x01},
-	{0x3501, 0x24},
-	{0x3502, 0x40},
 	{0x370a, 0x23},
 	{0x3801, 0xa0},
 	{0x3802, 0x00},
@@ -463,8 +455,6 @@ static struct ov2680_reg const ov2680_656x496_30fps[] = {
 */
 static struct ov2680_reg const ov2680_720x592_30fps[] = {
 	{0x3086, 0x01},
-	{0x3501, 0x26},
-	{0x3502, 0x40},
 	{0x370a, 0x23},
 	{0x3801, 0x00}, // X_ADDR_START;
 	{0x3802, 0x00},
@@ -508,8 +498,6 @@ static struct ov2680_reg const ov2680_720x592_30fps[] = {
 */
 static struct ov2680_reg const ov2680_800x600_30fps[] = {
 	{0x3086, 0x01},
-	{0x3501, 0x26},
-	{0x3502, 0x40},
 	{0x370a, 0x23},
 	{0x3801, 0x00},
 	{0x3802, 0x00},
@@ -551,8 +539,6 @@ static struct ov2680_reg const ov2680_800x600_30fps[] = {
  */
 static struct ov2680_reg const ov2680_720p_30fps[] = {
 	{0x3086, 0x00},
-	{0x3501, 0x48},
-	{0x3502, 0xe0},
 	{0x370a, 0x21},
 	{0x3801, 0xa0},
 	{0x3802, 0x00},
@@ -594,8 +580,6 @@ static struct ov2680_reg const ov2680_720p_30fps[] = {
  */
 static struct ov2680_reg const ov2680_1296x976_30fps[] = {
 	{0x3086, 0x00},
-	{0x3501, 0x48},
-	{0x3502, 0xe0},
 	{0x370a, 0x21},
 	{0x3801, 0xa0},
 	{0x3802, 0x00},
@@ -637,8 +621,6 @@ static struct ov2680_reg const ov2680_1296x976_30fps[] = {
 */
 static struct ov2680_reg const ov2680_1456x1096_30fps[] = {
 	{0x3086, 0x00},
-	{0x3501, 0x48},
-	{0x3502, 0xe0},
 	{0x370a, 0x21},
 	{0x3801, 0x90},
 	{0x3802, 0x00},
@@ -682,8 +664,6 @@ static struct ov2680_reg const ov2680_1456x1096_30fps[] = {
 
 static struct ov2680_reg const ov2680_1616x916_30fps[] = {
 	{0x3086, 0x00},
-	{0x3501, 0x48},
-	{0x3502, 0xe0},
 	{0x370a, 0x21},
 	{0x3801, 0x00},
 	{0x3802, 0x00},
@@ -726,8 +706,6 @@ static struct ov2680_reg const ov2680_1616x916_30fps[] = {
 #if 0
 static struct ov2680_reg const ov2680_1616x1082_30fps[] = {
 	{0x3086, 0x00},
-	{0x3501, 0x48},
-	{0x3502, 0xe0},
 	{0x370a, 0x21},
 	{0x3801, 0x00},
 	{0x3802, 0x00},
@@ -769,8 +747,6 @@ static struct ov2680_reg const ov2680_1616x1082_30fps[] = {
  */
 static struct ov2680_reg const ov2680_1616x1216_30fps[] = {
 	{0x3086, 0x00},
-	{0x3501, 0x48},
-	{0x3502, 0xe0},
 	{0x370a, 0x21},
 	{0x3801, 0x00},
 	{0x3802, 0x00},
-- 
GitLab


From ff452db96163ce8961c4878065ae763e942e7904 Mon Sep 17 00:00:00 2001
From: Wan Jiabing <wanjiabing@vivo.com>
Date: Sun, 17 Oct 2021 21:45:03 -0400
Subject: [PATCH 3176/4878] ARM: shmobile: rcar-gen2: Add missing of_node_put()

[ Upstream commit 85744f2d938c5f3cfc44cb6533c157469634da93 ]

Fix following coccicheck warning:
./arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c:156:1-33: Function
for_each_matching_node_and_match should have of_node_put() before break
and goto.

Early exits from for_each_matching_node_and_match() should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Link: https://lore.kernel.org/r/20211018014503.7598-1-wanjiabing@vivo.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index ee949255ced3f..09ef73b99dd86 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -154,8 +154,10 @@ static int __init rcar_gen2_regulator_quirk(void)
 		return -ENODEV;
 
 	for_each_matching_node_and_match(np, rcar_gen2_quirk_match, &id) {
-		if (!of_device_is_available(np))
+		if (!of_device_is_available(np)) {
+			of_node_put(np);
 			break;
+		}
 
 		ret = of_property_read_u32(np, "reg", &addr);
 		if (ret)	/* Skip invalid entry and continue */
@@ -164,6 +166,7 @@ static int __init rcar_gen2_regulator_quirk(void)
 		quirk = kzalloc(sizeof(*quirk), GFP_KERNEL);
 		if (!quirk) {
 			ret = -ENOMEM;
+			of_node_put(np);
 			goto err_mem;
 		}
 
-- 
GitLab


From ebe9c978d9e777f6e9090834e2b90451e5bdb3ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@c0d3.blue>
Date: Sun, 31 Oct 2021 22:30:12 +0100
Subject: [PATCH 3177/4878] batman-adv: allow netlink usage in unprivileged
 containers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 9057d6c23e7388ee9d037fccc9a7bc8557ce277b ]

Currently, creating a batman-adv interface in an unprivileged LXD
container and attaching secondary interfaces to it with "ip" or "batctl"
works fine. However all batctl debug and configuration commands
fail:

  root@container:~# batctl originators
  Error received: Operation not permitted
  root@container:~# batctl orig_interval
  1000
  root@container:~# batctl orig_interval 2000
  root@container:~# batctl orig_interval
  1000

To fix this change the generic netlink permissions from GENL_ADMIN_PERM
to GENL_UNS_ADMIN_PERM. This way a batman-adv interface is fully
maintainable as root from within a user namespace, from an unprivileged
container.

All except one batman-adv netlink setting are per interface and do not
leak information or change settings from the host system and are
therefore save to retrieve or modify as root from within an unprivileged
container.

"batctl routing_algo" / BATADV_CMD_GET_ROUTING_ALGOS is the only
exception: It provides the batman-adv kernel module wide default routing
algorithm. However it is read-only from netlink and an unprivileged
container is still not allowed to modify
/sys/module/batman_adv/parameters/routing_algo. Instead it is advised to
use the newly introduced "batctl if create routing_algo RA_NAME" /
IFLA_BATADV_ALGO_NAME to set the routing algorithm on interface
creation, which already works fine in an unprivileged container.

Cc: Tycho Andersen <tycho@tycho.pizza>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/batman-adv/netlink.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/net/batman-adv/netlink.c b/net/batman-adv/netlink.c
index c7a55647b520e..121459704b069 100644
--- a/net/batman-adv/netlink.c
+++ b/net/batman-adv/netlink.c
@@ -1361,21 +1361,21 @@ static const struct genl_small_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_TP_METER,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_tp_meter_start,
 		.internal_flags = BATADV_FLAG_NEED_MESH,
 	},
 	{
 		.cmd = BATADV_CMD_TP_METER_CANCEL,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_tp_meter_cancel,
 		.internal_flags = BATADV_FLAG_NEED_MESH,
 	},
 	{
 		.cmd = BATADV_CMD_GET_ROUTING_ALGOS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_algo_dump,
 	},
 	{
@@ -1390,68 +1390,68 @@ static const struct genl_small_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_GET_TRANSTABLE_LOCAL,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_tt_local_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_TRANSTABLE_GLOBAL,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_tt_global_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_ORIGINATORS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_orig_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_NEIGHBORS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_hardif_neigh_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_GATEWAYS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_gw_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_BLA_CLAIM,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_bla_claim_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_BLA_BACKBONE,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_bla_backbone_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_DAT_CACHE,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_dat_cache_dump,
 	},
 	{
 		.cmd = BATADV_CMD_GET_MCAST_FLAGS,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.dumpit = batadv_mcast_flags_dump,
 	},
 	{
 		.cmd = BATADV_CMD_SET_MESH,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_set_mesh,
 		.internal_flags = BATADV_FLAG_NEED_MESH,
 	},
 	{
 		.cmd = BATADV_CMD_SET_HARDIF,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_set_hardif,
 		.internal_flags = BATADV_FLAG_NEED_MESH |
 				  BATADV_FLAG_NEED_HARDIF,
@@ -1467,7 +1467,7 @@ static const struct genl_small_ops batadv_netlink_ops[] = {
 	{
 		.cmd = BATADV_CMD_SET_VLAN,
 		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
-		.flags = GENL_ADMIN_PERM,
+		.flags = GENL_UNS_ADMIN_PERM,
 		.doit = batadv_netlink_set_vlan,
 		.internal_flags = BATADV_FLAG_NEED_MESH |
 				  BATADV_FLAG_NEED_VLAN,
-- 
GitLab


From e8b271f2aaddf284745d2caf0845d3f6c0dd8a18 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Thu, 11 Nov 2021 23:04:09 +0000
Subject: [PATCH 3178/4878] media: atomisp: handle errors at
 sh_css_create_isp_params()

[ Upstream commit 58043dbf6d1ae9deab4f5aa1e039c70112017682 ]

The succ var tracks memory allocation erros on this function.

Fix it, in order to stop this W=1 Werror in clang:

drivers/staging/media/atomisp/pci/sh_css_params.c:2430:7: error: variable 'succ' set but not used [-Werror,-Wunused-but-set-variable]
        bool succ = true;
             ^

Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/pci/sh_css_params.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_params.c b/drivers/staging/media/atomisp/pci/sh_css_params.c
index 24fc497bd4915..8d6514c45eeb6 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_params.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_params.c
@@ -2437,7 +2437,7 @@ sh_css_create_isp_params(struct ia_css_stream *stream,
 	unsigned int i;
 	struct sh_css_ddr_address_map *ddr_ptrs;
 	struct sh_css_ddr_address_map_size *ddr_ptrs_size;
-	int err = 0;
+	int err;
 	size_t params_size;
 	struct ia_css_isp_parameters *params =
 	kvmalloc(sizeof(struct ia_css_isp_parameters), GFP_KERNEL);
@@ -2482,7 +2482,11 @@ sh_css_create_isp_params(struct ia_css_stream *stream,
 	succ &= (ddr_ptrs->macc_tbl != mmgr_NULL);
 
 	*isp_params_out = params;
-	return err;
+
+	if (!succ)
+		return -ENOMEM;
+
+	return 0;
 }
 
 static bool
-- 
GitLab


From 129e8faaee973f5400fac644b30a7551df98d5f9 Mon Sep 17 00:00:00 2001
From: Baochen Qiang <bqiang@codeaurora.org>
Date: Tue, 26 Oct 2021 09:16:05 +0800
Subject: [PATCH 3179/4878] ath11k: Fix crash caused by uninitialized TX ring

[ Upstream commit 273703ebdb01b6c5f1aaf4b98fb57b177609055c ]

Commit 31582373a4a8 ("ath11k: Change number of TCL rings to one for
QCA6390") avoids initializing the other entries of dp->tx_ring cause
the corresponding TX rings on QCA6390/WCN6855 are not used, but leaves
those ring masks in ath11k_hw_ring_mask_qca6390.tx unchanged. Normally
this is OK because we will only get interrupts from the first TX ring
on these chips and thus only the first entry of dp->tx_ring is involved.

In case of one MSI vector, all DP rings share the same IRQ. For each
interrupt, all rings have to be checked, which means the other entries
of dp->tx_ring are involved. However since they are not initialized,
system crashes.

Fix this issue by simply removing those ring masks.

crash stack:
[  102.907438] BUG: kernel NULL pointer dereference, address: 0000000000000028
[  102.907447] #PF: supervisor read access in kernel mode
[  102.907451] #PF: error_code(0x0000) - not-present page
[  102.907453] PGD 1081f0067 P4D 1081f0067 PUD 1081f1067 PMD 0
[  102.907460] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
[  102.907465] CPU: 0 PID: 3511 Comm: apt-check Kdump: loaded Tainted: G            E     5.15.0-rc4-wt-ath+ #20
[  102.907470] Hardware name: AMD Celadon-RN/Celadon-RN, BIOS RCD1005E 10/08/2020
[  102.907472] RIP: 0010:ath11k_dp_tx_completion_handler+0x201/0x830 [ath11k]
[  102.907497] Code: 3c 24 4e 8d ac 37 10 04 00 00 4a 8d bc 37 68 04 00 00 48 89 3c 24 48 63 c8 89 83 84 18 00 00 48 c1 e1 05 48 03 8b 78 18 00 00 <8b> 51 08 89 d6 83 e6 07 89 74 24 24 83 fe 03 74 04 85 f6 75 63 41
[  102.907501] RSP: 0000:ffff9b7340003e08 EFLAGS: 00010202
[  102.907505] RAX: 0000000000000001 RBX: ffff8e21530c0100 RCX: 0000000000000020
[  102.907508] RDX: 0000000000000000 RSI: 00000000fffffe00 RDI: ffff8e21530c1938
[  102.907511] RBP: ffff8e21530c0000 R08: 0000000000000001 R09: 0000000000000000
[  102.907513] R10: ffff8e2145534c10 R11: 0000000000000001 R12: ffff8e21530c2938
[  102.907515] R13: ffff8e21530c18e0 R14: 0000000000000100 R15: ffff8e21530c2978
[  102.907518] FS:  00007f5d4297e740(0000) GS:ffff8e243d600000(0000) knlGS:0000000000000000
[  102.907521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.907524] CR2: 0000000000000028 CR3: 00000001034ea000 CR4: 0000000000350ef0
[  102.907527] Call Trace:
[  102.907531]  <IRQ>
[  102.907537]  ath11k_dp_service_srng+0x5c/0x2f0 [ath11k]
[  102.907556]  ath11k_pci_ext_grp_napi_poll+0x21/0x70 [ath11k_pci]
[  102.907562]  __napi_poll+0x2c/0x160
[  102.907570]  net_rx_action+0x251/0x310
[  102.907576]  __do_softirq+0x107/0x2fc
[  102.907585]  irq_exit_rcu+0x74/0x90
[  102.907593]  common_interrupt+0x83/0xa0
[  102.907600]  </IRQ>
[  102.907601]  asm_common_interrupt+0x1e/0x40

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Baochen Qiang <bqiang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211026011605.58615-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/hw.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/hw.c b/drivers/net/wireless/ath/ath11k/hw.c
index 66331da350129..f6282e8702923 100644
--- a/drivers/net/wireless/ath/ath11k/hw.c
+++ b/drivers/net/wireless/ath/ath11k/hw.c
@@ -246,8 +246,6 @@ const struct ath11k_hw_ring_mask ath11k_hw_ring_mask_ipq8074 = {
 const struct ath11k_hw_ring_mask ath11k_hw_ring_mask_qca6390 = {
 	.tx  = {
 		ATH11K_TX_RING_MASK_0,
-		ATH11K_TX_RING_MASK_1,
-		ATH11K_TX_RING_MASK_2,
 	},
 	.rx_mon_status = {
 		0, 0, 0, 0,
-- 
GitLab


From 5aa57672c66cca8aae148c722b6de2fa9ef65138 Mon Sep 17 00:00:00 2001
From: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Date: Fri, 12 Nov 2021 15:54:40 +0530
Subject: [PATCH 3180/4878] usb: gadget: f_fs: Use stream_open() for endpoint
 files

[ Upstream commit c76ef96fc00eb398c8fc836b0eb2f82bcc619dc7 ]

Function fs endpoint file operations are synchronized via an interruptible
mutex wait. However we see threads that do ep file operations concurrently
are getting blocked for the mutex lock in __fdget_pos(). This is an
uninterruptible wait and we see hung task warnings and kernel panic
if hung_task_panic systcl is enabled if host does not send/receive
the data for long time.

The reason for threads getting blocked in __fdget_pos() is due to
the file position protection introduced by the commit 9c225f2655e3
("vfs: atomic f_pos accesses as per POSIX"). Since function fs
endpoint files does not have the notion of the file position, switch
to the stream mode. This will bypass the file position mutex and
threads will be blocked in interruptible state for the function fs
mutex.

It should not affects user space as we are only changing the task state
changes the task state from UNINTERRUPTIBLE to INTERRUPTIBLE while waiting
for the USB transfers to be finished. However there is a slight change to
the O_NONBLOCK behavior. Earlier threads that are using O_NONBLOCK are also
getting blocked inside fdget_pos(). Now they reach to function fs and error
code is returned. The non blocking behavior is actually honoured now.

Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Link: https://lore.kernel.org/r/1636712682-1226-1-git-send-email-quic_pkondeti@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/function/f_fs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index cbb7947f366f9..d8652321e15e9 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -614,7 +614,7 @@ static int ffs_ep0_open(struct inode *inode, struct file *file)
 	file->private_data = ffs;
 	ffs_data_opened(ffs);
 
-	return 0;
+	return stream_open(inode, file);
 }
 
 static int ffs_ep0_release(struct inode *inode, struct file *file)
@@ -1152,7 +1152,7 @@ ffs_epfile_open(struct inode *inode, struct file *file)
 	file->private_data = epfile;
 	ffs_data_opened(epfile->ffs);
 
-	return 0;
+	return stream_open(inode, file);
 }
 
 static int ffs_aio_cancel(struct kiocb *kiocb)
-- 
GitLab


From 2df002e3276b1f9364013be56d3e819df095f118 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 6 Nov 2021 14:02:27 +0100
Subject: [PATCH 3181/4878] drm: panel-orientation-quirks: Add quirk for the
 Lenovo Yoga Book X91F/L

[ Upstream commit bc30c3b0c8a1904d83d5f0d60fb8650a334b207b ]

The Lenovo Yoga Book X91F/L uses a panel which has been mounted
90 degrees rotated. Add a quirk for this.

Cc: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Ser <contact@emersion.fr>
Tested-by: Yauhen Kharuzhy <jekhor@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211106130227.11927-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index a950d5db211c5..9d1bd8f491ad7 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -248,6 +248,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
+	}, {	/* Lenovo Yoga Book X90F / X91F / X91L */
+		.matches = {
+		  /* Non exact match to match all versions */
+		  DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
+		},
+		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* OneGX1 Pro */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SYSTEM_MANUFACTURER"),
-- 
GitLab


From c978d39a8b142a5028eed159d7cd9a14a43ff81e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Thu, 18 Nov 2021 08:29:53 +0100
Subject: [PATCH 3182/4878] HID: apple: Do not reset quirks when the Fn key is
 not found
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit a5fe7864d8ada170f19cc47d176bf8260ffb4263 ]

When a keyboard without a function key is detected, instead of removing
all quirks, remove only the APPLE_HAS_FN quirk.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-apple.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 5c1d33cda863b..e5d2e7e9541b8 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -415,7 +415,7 @@ static int apple_input_configured(struct hid_device *hdev,
 
 	if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
 		hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
-		asc->quirks = 0;
+		asc->quirks &= ~APPLE_HAS_FN;
 	}
 
 	return 0;
-- 
GitLab


From 0b85d73fdbc8da0a339d6c2a7ed913075f9065f0 Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Tue, 11 May 2021 10:00:03 +0100
Subject: [PATCH 3183/4878] media: b2c2: Add missing check in flexcop_pci_isr:

[ Upstream commit b13203032e679674c7c518f52a7ec0801ca3a829 ]

A out-of-bounds bug can be triggered by an interrupt, the reason for
this bug is the lack of checking of register values.

In flexcop_pci_isr, the driver reads value from a register and uses it as
a dma address. Finally, this address will be passed to the count parameter
of find_next_packet. If this value is larger than the size of dma, the
index of buffer will be out-of-bounds.

Fix this by adding a check after reading the value of the register.

The following KASAN report reveals it:

BUG: KASAN: slab-out-of-bounds in find_next_packet
drivers/media/dvb-core/dvb_demux.c:528 [inline]
BUG: KASAN: slab-out-of-bounds in _dvb_dmx_swfilter
drivers/media/dvb-core/dvb_demux.c:572 [inline]
BUG: KASAN: slab-out-of-bounds in dvb_dmx_swfilter+0x3fa/0x420
drivers/media/dvb-core/dvb_demux.c:603
Read of size 1 at addr ffff8880608c00a0 by task swapper/2/0

CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.19.177-gdba4159c14ef #25
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xec/0x156 lib/dump_stack.c:118
 print_address_description+0x78/0x290 mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report+0x25b/0x380 mm/kasan/report.c:412
 __asan_report_load1_noabort+0x19/0x20 mm/kasan/report.c:430
 find_next_packet drivers/media/dvb-core/dvb_demux.c:528 [inline]
 _dvb_dmx_swfilter drivers/media/dvb-core/dvb_demux.c:572 [inline]
 dvb_dmx_swfilter+0x3fa/0x420 drivers/media/dvb-core/dvb_demux.c:603
 flexcop_pass_dmx_data+0x2e/0x40 drivers/media/common/b2c2/flexcop.c:167
 flexcop_pci_isr+0x3d1/0x5d0 drivers/media/pci/b2c2/flexcop-pci.c:212
 __handle_irq_event_percpu+0xfb/0x770 kernel/irq/handle.c:149
 handle_irq_event_percpu+0x79/0x150 kernel/irq/handle.c:189
 handle_irq_event+0xac/0x140 kernel/irq/handle.c:206
 handle_fasteoi_irq+0x232/0x5c0 kernel/irq/chip.c:725
 generic_handle_irq_desc include/linux/irqdesc.h:155 [inline]
 handle_irq+0x230/0x3a0 arch/x86/kernel/irq_64.c:87
 do_IRQ+0xa7/0x1e0 arch/x86/kernel/irq.c:247
 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:670
 </IRQ>
RIP: 0010:native_safe_halt+0x28/0x30 arch/x86/include/asm/irqflags.h:61
Code: 00 00 55 be 04 00 00 00 48 c7 c7 00 62 2f 8c 48 89 e5 e8 fb 31
e8 f8 8b 05 75 4f 8e 03 85 c0 7e 07 0f 00 2d 8a 61 66 00 fb f4 <5d> c3
90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41
RSP: 0018:ffff88806b71fcc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffde
RAX: 0000000000000000 RBX: ffffffff8bde44c8 RCX: ffffffff88a11285
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8c2f6200
RBP: ffff88806b71fcc8 R08: fffffbfff185ec40 R09: fffffbfff185ec40
R10: 0000000000000001 R11: fffffbfff185ec40 R12: 0000000000000002
R13: ffffffff8be9d6e0 R14: 0000000000000000 R15: 0000000000000000
 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]
 default_idle+0x6f/0x360 arch/x86/kernel/process.c:557
 arch_cpu_idle+0xf/0x20 arch/x86/kernel/process.c:548
 default_idle_call+0x3b/0x60 kernel/sched/idle.c:93
 cpuidle_idle_call kernel/sched/idle.c:153 [inline]
 do_idle+0x2ab/0x3c0 kernel/sched/idle.c:263
 cpu_startup_entry+0xcb/0xe0 kernel/sched/idle.c:369
 start_secondary+0x3b8/0x4e0 arch/x86/kernel/smpboot.c:271
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243

Allocated by task 1:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:553
 kasan_slab_alloc+0x11/0x20 mm/kasan/kasan.c:490
 slab_post_alloc_hook mm/slab.h:445 [inline]
 slab_alloc_node mm/slub.c:2741 [inline]
 slab_alloc mm/slub.c:2749 [inline]
 kmem_cache_alloc+0xeb/0x280 mm/slub.c:2754
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 __kernfs_new_node+0xe2/0x6f0 fs/kernfs/dir.c:633
 kernfs_new_node+0x9a/0x120 fs/kernfs/dir.c:693
 __kernfs_create_file+0x5f/0x340 fs/kernfs/file.c:992
 sysfs_add_file_mode_ns+0x22a/0x4e0 fs/sysfs/file.c:306
 create_files fs/sysfs/group.c:63 [inline]
 internal_create_group+0x34e/0xc30 fs/sysfs/group.c:147
 sysfs_create_group fs/sysfs/group.c:173 [inline]
 sysfs_create_groups+0x9c/0x140 fs/sysfs/group.c:200
 driver_add_groups+0x3e/0x50 drivers/base/driver.c:129
 bus_add_driver+0x3a5/0x790 drivers/base/bus.c:684
 driver_register+0x1cd/0x410 drivers/base/driver.c:170
 __pci_register_driver+0x197/0x200 drivers/pci/pci-driver.c:1411
 cx88_audio_pci_driver_init+0x23/0x25 drivers/media/pci/cx88/cx88-alsa.c:
 1017
 do_one_initcall+0xe0/0x610 init/main.c:884
 do_initcall_level init/main.c:952 [inline]
 do_initcalls init/main.c:960 [inline]
 do_basic_setup init/main.c:978 [inline]
 kernel_init_freeable+0x4d0/0x592 init/main.c:1145
 kernel_init+0x18/0x190 init/main.c:1062
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8880608c0000
 which belongs to the cache kernfs_node_cache of size 160
The buggy address is located 0 bytes to the right of
 160-byte region [ffff8880608c0000, ffff8880608c00a0)
The buggy address belongs to the page:
page:ffffea0001823000 count:1 mapcount:0 mapping:ffff88806bed1e00
index:0x0 compound_mapcount: 0
flags: 0x100000000008100(slab|head)
raw: 0100000000008100 dead000000000100 dead000000000200 ffff88806bed1e00
raw: 0000000000000000 0000000000240024 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880608bff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880608c0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8880608c0080: 00 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00
                               ^
 ffff8880608c0100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880608c0180: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
==================================================================

Link: https://lore.kernel.org/linux-media/1620723603-30912-1-git-send-email-zheyuma97@gmail.com
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/b2c2/flexcop-pci.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/pci/b2c2/flexcop-pci.c b/drivers/media/pci/b2c2/flexcop-pci.c
index a9d9520a94c6d..c9e6c7d663768 100644
--- a/drivers/media/pci/b2c2/flexcop-pci.c
+++ b/drivers/media/pci/b2c2/flexcop-pci.c
@@ -185,6 +185,8 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
 		dma_addr_t cur_addr =
 			fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2;
 		u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0;
+		if (cur_pos > fc_pci->dma[0].size * 2)
+			goto error;
 
 		deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, last_cur_pos: %08x ",
 				jiffies_to_usecs(jiffies - fc_pci->last_irq),
@@ -225,6 +227,7 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id)
 		ret = IRQ_NONE;
 	}
 
+error:
 	spin_unlock_irqrestore(&fc_pci->irq_lock, flags);
 	return ret;
 }
-- 
GitLab


From f54d8cd831be8b9f7a82052c1759dd28ad6221cb Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@kernel.org>
Date: Tue, 12 Oct 2021 14:07:06 -0500
Subject: [PATCH 3184/4878] EDAC/synopsys: Use the quirk for version instead of
 ddr version

[ Upstream commit bd1d6da17c296bd005bfa656952710d256e77dd3 ]

Version 2.40a supports DDR_ECC_INTR_SUPPORT for a quirk, so use that
quirk to determine a call to setup_address_map().

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lkml.kernel.org/r/20211012190709.1504152-1-dinguyen@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/edac/synopsys_edac.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c
index 1a801a5d3b08b..92906b56b1a2b 100644
--- a/drivers/edac/synopsys_edac.c
+++ b/drivers/edac/synopsys_edac.c
@@ -1351,8 +1351,7 @@ static int mc_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (of_device_is_compatible(pdev->dev.of_node,
-				    "xlnx,zynqmp-ddrc-2.40a"))
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT)
 		setup_address_map(priv);
 #endif
 
-- 
GitLab


From 3c3c0b6c4ae9be80face4625f976042dd0d01d16 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Thu, 28 Oct 2021 16:19:33 +0200
Subject: [PATCH 3185/4878] ARM: imx: rename DEBUG_IMX21_IMX27_UART to
 DEBUG_IMX27_UART

[ Upstream commit b0100bce4ff82ec1ccd3c1f3d339fd2df6a81784 ]

Since commit 4b563a066611 ("ARM: imx: Remove imx21 support"), the config
DEBUG_IMX21_IMX27_UART is really only debug support for IMX27.

So, rename this option to DEBUG_IMX27_UART and adjust dependencies in
Kconfig and rename the definitions to IMX27 as further clean-up.

This issue was discovered with ./scripts/checkkconfigsymbols.py, which
reported that DEBUG_IMX21_IMX27_UART depends on the non-existing config
SOC_IMX21.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/Kconfig.debug            | 14 +++++++-------
 arch/arm/include/debug/imx-uart.h | 18 +++++++++---------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 8986a91a6f31b..dd1cf70353986 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -400,12 +400,12 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on i.MX25.
 
-	config DEBUG_IMX21_IMX27_UART
-		bool "i.MX21 and i.MX27 Debug UART"
-		depends on SOC_IMX21 || SOC_IMX27
+	config DEBUG_IMX27_UART
+		bool "i.MX27 Debug UART"
+		depends on SOC_IMX27
 		help
 		  Say Y here if you want kernel low-level debugging support
-		  on i.MX21 or i.MX27.
+		  on i.MX27.
 
 	config DEBUG_IMX28_UART
 		bool "i.MX28 Debug UART"
@@ -1523,7 +1523,7 @@ config DEBUG_IMX_UART_PORT
 	int "i.MX Debug UART Port Selection"
 	depends on DEBUG_IMX1_UART || \
 		   DEBUG_IMX25_UART || \
-		   DEBUG_IMX21_IMX27_UART || \
+		   DEBUG_IMX27_UART || \
 		   DEBUG_IMX31_UART || \
 		   DEBUG_IMX35_UART || \
 		   DEBUG_IMX50_UART || \
@@ -1591,12 +1591,12 @@ config DEBUG_LL_INCLUDE
 	default "debug/icedcc.S" if DEBUG_ICEDCC
 	default "debug/imx.S" if DEBUG_IMX1_UART || \
 				 DEBUG_IMX25_UART || \
-				 DEBUG_IMX21_IMX27_UART || \
+				 DEBUG_IMX27_UART || \
 				 DEBUG_IMX31_UART || \
 				 DEBUG_IMX35_UART || \
 				 DEBUG_IMX50_UART || \
 				 DEBUG_IMX51_UART || \
-				 DEBUG_IMX53_UART ||\
+				 DEBUG_IMX53_UART || \
 				 DEBUG_IMX6Q_UART || \
 				 DEBUG_IMX6SL_UART || \
 				 DEBUG_IMX6SX_UART || \
diff --git a/arch/arm/include/debug/imx-uart.h b/arch/arm/include/debug/imx-uart.h
index c8eb83d4b8964..3edbb3c5b42bf 100644
--- a/arch/arm/include/debug/imx-uart.h
+++ b/arch/arm/include/debug/imx-uart.h
@@ -11,13 +11,6 @@
 #define IMX1_UART_BASE_ADDR(n)	IMX1_UART##n##_BASE_ADDR
 #define IMX1_UART_BASE(n)	IMX1_UART_BASE_ADDR(n)
 
-#define IMX21_UART1_BASE_ADDR	0x1000a000
-#define IMX21_UART2_BASE_ADDR	0x1000b000
-#define IMX21_UART3_BASE_ADDR	0x1000c000
-#define IMX21_UART4_BASE_ADDR	0x1000d000
-#define IMX21_UART_BASE_ADDR(n)	IMX21_UART##n##_BASE_ADDR
-#define IMX21_UART_BASE(n)	IMX21_UART_BASE_ADDR(n)
-
 #define IMX25_UART1_BASE_ADDR	0x43f90000
 #define IMX25_UART2_BASE_ADDR	0x43f94000
 #define IMX25_UART3_BASE_ADDR	0x5000c000
@@ -26,6 +19,13 @@
 #define IMX25_UART_BASE_ADDR(n)	IMX25_UART##n##_BASE_ADDR
 #define IMX25_UART_BASE(n)	IMX25_UART_BASE_ADDR(n)
 
+#define IMX27_UART1_BASE_ADDR	0x1000a000
+#define IMX27_UART2_BASE_ADDR	0x1000b000
+#define IMX27_UART3_BASE_ADDR	0x1000c000
+#define IMX27_UART4_BASE_ADDR	0x1000d000
+#define IMX27_UART_BASE_ADDR(n)	IMX27_UART##n##_BASE_ADDR
+#define IMX27_UART_BASE(n)	IMX27_UART_BASE_ADDR(n)
+
 #define IMX31_UART1_BASE_ADDR	0x43f90000
 #define IMX31_UART2_BASE_ADDR	0x43f94000
 #define IMX31_UART3_BASE_ADDR	0x5000c000
@@ -112,10 +112,10 @@
 
 #ifdef CONFIG_DEBUG_IMX1_UART
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX1)
-#elif defined(CONFIG_DEBUG_IMX21_IMX27_UART)
-#define UART_PADDR	IMX_DEBUG_UART_BASE(IMX21)
 #elif defined(CONFIG_DEBUG_IMX25_UART)
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX25)
+#elif defined(CONFIG_DEBUG_IMX27_UART)
+#define UART_PADDR	IMX_DEBUG_UART_BASE(IMX27)
 #elif defined(CONFIG_DEBUG_IMX31_UART)
 #define UART_PADDR	IMX_DEBUG_UART_BASE(IMX31)
 #elif defined(CONFIG_DEBUG_IMX35_UART)
-- 
GitLab


From 019fe9723a83cef67e772baae6065f5d4bc0bb31 Mon Sep 17 00:00:00 2001
From: Yang Li <yang.lee@linux.alibaba.com>
Date: Mon, 15 Nov 2021 16:10:19 +0800
Subject: [PATCH 3186/4878] drm/amd/display: check top_pipe_to_program pointer

[ Upstream commit a689e8d1f80012f90384ebac9dcfac4201f9f77e ]

Clang static analysis reports this error

drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:2870:7: warning:
Dereference of null pointer [clang-analyzer-core.NullDereference]
                if
(top_pipe_to_program->stream_res.tg->funcs->lock_doublebuffer_enable) {
                    ^

top_pipe_to_program being NULL is caught as an error
But then it is used to report the error.

So add a check before using it.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 284ed1c8a35ac..93f5229c303e7 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2436,7 +2436,8 @@ static void commit_planes_for_stream(struct dc *dc,
 	}
 
 	if ((update_type != UPDATE_TYPE_FAST) && stream->update_flags.bits.dsc_changed)
-		if (top_pipe_to_program->stream_res.tg->funcs->lock_doublebuffer_enable) {
+		if (top_pipe_to_program &&
+			top_pipe_to_program->stream_res.tg->funcs->lock_doublebuffer_enable) {
 			if (should_use_dmub_lock(stream->link)) {
 				union dmub_hw_lock_flags hw_locks = { 0 };
 				struct dmub_hw_lock_inst_flags inst_flags = { 0 };
-- 
GitLab


From 07fbbc4dc79d70ad2215ff34ebade8419a638a64 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 10 Nov 2021 10:23:25 -0500
Subject: [PATCH 3187/4878] drm/amdgpu/display: set vblank_disable_immediate
 for DC

[ Upstream commit 92020e81ddbeac351ea4a19bcf01743f32b9c800 ]

Disable vblanks immediately to save power.  I think this was
missed when we merged DC support.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1781
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c           | 1 -
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 2f70fdd6104f2..582055136cdbf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -267,7 +267,6 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
 	if (!amdgpu_device_has_dc_support(adev)) {
 		if (!adev->enable_virtual_display)
 			/* Disable vblank IRQs aggressively for power-saving */
-			/* XXX: can this be enabled for DC? */
 			adev_to_drm(adev)->vblank_disable_immediate = true;
 
 		r = drm_vblank_init(adev_to_drm(adev), adev->mode_info.num_crtc);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index a5b6f36fe1d72..6c8f141103da4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1069,6 +1069,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 	adev_to_drm(adev)->mode_config.cursor_width = adev->dm.dc->caps.max_cursor_size;
 	adev_to_drm(adev)->mode_config.cursor_height = adev->dm.dc->caps.max_cursor_size;
 
+	/* Disable vblank IRQs aggressively for power-saving */
+	adev_to_drm(adev)->vblank_disable_immediate = true;
+
 	if (drm_vblank_init(adev_to_drm(adev), adev->dm.display_indexes_num)) {
 		DRM_ERROR(
 		"amdgpu: failed to initialize sw for display support.\n");
-- 
GitLab


From b2e921fa9219a703bbb7cc5f1849d7c5b4a5478f Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Mon, 21 Jun 2021 20:08:28 +0200
Subject: [PATCH 3188/4878] soc: ti: pruss: fix referenced node in error
 message

[ Upstream commit 8aa35e0bb5eaa42bac415ad0847985daa7b4890c ]

So far, "(null)" is reported for the node that is missing clocks.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/d6e24953-ea89-fd1c-6e16-7a0142118054@siemens.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/ti/pruss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c
index cc0b4ad7a3d34..30695172a508f 100644
--- a/drivers/soc/ti/pruss.c
+++ b/drivers/soc/ti/pruss.c
@@ -131,7 +131,7 @@ static int pruss_clk_init(struct pruss *pruss, struct device_node *cfg_node)
 
 	clks_np = of_get_child_by_name(cfg_node, "clocks");
 	if (!clks_np) {
-		dev_err(dev, "%pOF is missing its 'clocks' node\n", clks_np);
+		dev_err(dev, "%pOF is missing its 'clocks' node\n", cfg_node);
 		return -ENODEV;
 	}
 
-- 
GitLab


From 43fc9e267e2e5b87558a9bf74ced9a3a7e905072 Mon Sep 17 00:00:00 2001
From: Danielle Ratson <danieller@nvidia.com>
Date: Tue, 23 Nov 2021 09:54:47 +0200
Subject: [PATCH 3189/4878] mlxsw: pci: Add shutdown method in PCI driver

[ Upstream commit c1020d3cf4752f61a6a413f632ea2ce2370e150d ]

On an arm64 platform with the Spectrum ASIC, after loading and executing
a new kernel via kexec, the following trace [1] is observed. This seems
to be caused by the fact that the device is not properly shutdown before
executing the new kernel.

Fix this by implementing a shutdown method which mirrors the remove
method, as recommended by the kexec maintainer [2][3].

[1]
BUG: Bad page state in process devlink pfn:22f73d
page:fffffe00089dcf40 refcount:-1 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x2ffff00000000000()
raw: 2ffff00000000000 0000000000000000 ffffffff089d0201 0000000000000000
raw: 0000000000000000 0000000000000000 ffffffffffffffff 0000000000000000
page dumped because: nonzero _refcount
Modules linked in:
CPU: 1 PID: 16346 Comm: devlink Tainted: G B 5.8.0-rc6-custom-273020-gac6b365b1bf5 #44
Hardware name: Marvell Armada 7040 TX4810M (DT)
Call trace:
 dump_backtrace+0x0/0x1d0
 show_stack+0x1c/0x28
 dump_stack+0xbc/0x118
 bad_page+0xcc/0xf8
 check_free_page_bad+0x80/0x88
 __free_pages_ok+0x3f8/0x418
 __free_pages+0x38/0x60
 kmem_freepages+0x200/0x2a8
 slab_destroy+0x28/0x68
 slabs_destroy+0x60/0x90
 ___cache_free+0x1b4/0x358
 kfree+0xc0/0x1d0
 skb_free_head+0x2c/0x38
 skb_release_data+0x110/0x1a0
 skb_release_all+0x2c/0x38
 consume_skb+0x38/0x130
 __dev_kfree_skb_any+0x44/0x50
 mlxsw_pci_rdq_fini+0x8c/0xb0
 mlxsw_pci_queue_fini.isra.0+0x28/0x58
 mlxsw_pci_queue_group_fini+0x58/0x88
 mlxsw_pci_aqs_fini+0x2c/0x60
 mlxsw_pci_fini+0x34/0x50
 mlxsw_core_bus_device_unregister+0x104/0x1d0
 mlxsw_devlink_core_bus_device_reload_down+0x2c/0x48
 devlink_reload+0x44/0x158
 devlink_nl_cmd_reload+0x270/0x290
 genl_rcv_msg+0x188/0x2f0
 netlink_rcv_skb+0x5c/0x118
 genl_rcv+0x3c/0x50
 netlink_unicast+0x1bc/0x278
 netlink_sendmsg+0x194/0x390
 __sys_sendto+0xe0/0x158
 __arm64_sys_sendto+0x2c/0x38
 el0_svc_common.constprop.0+0x70/0x168
 do_el0_svc+0x28/0x88
 el0_sync_handler+0x88/0x190
 el0_sync+0x140/0x180

[2]
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1195432.html

[3]
https://patchwork.kernel.org/project/linux-scsi/patch/20170212214920.28866-1-anton@ozlabs.org/#20116693

Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index ffaeda75eec42..72d5c77bcb949 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -1900,6 +1900,7 @@ int mlxsw_pci_driver_register(struct pci_driver *pci_driver)
 {
 	pci_driver->probe = mlxsw_pci_probe;
 	pci_driver->remove = mlxsw_pci_remove;
+	pci_driver->shutdown = mlxsw_pci_remove;
 	return pci_register_driver(pci_driver);
 }
 EXPORT_SYMBOL(mlxsw_pci_driver_register);
-- 
GitLab


From b8d10f601f226f055df8b5368d7ea7f369136cd5 Mon Sep 17 00:00:00 2001
From: Martyn Welch <martyn.welch@collabora.com>
Date: Thu, 25 Nov 2021 10:53:02 +0000
Subject: [PATCH 3190/4878] drm/bridge: megachips: Ensure both bridges are
 probed before registration

[ Upstream commit 11632d4aa2b3f126790e81a4415d6c23103cf8bb ]

In the configuration used by the b850v3, the STDP2690 is used to read EDID
data whilst it's the STDP4028 which can detect when monitors are connected.

This can result in problems at boot with monitors connected when the
STDP4028 is probed first, a monitor is detected and an attempt is made to
read the EDID data before the STDP2690 has probed:

[    3.795721] Unable to handle kernel NULL pointer dereference at virtual address 00000018
[    3.803845] pgd = (ptrval)
[    3.806581] [00000018] *pgd=00000000
[    3.810180] Internal error: Oops: 5 [#1] SMP ARM
[    3.814813] Modules linked in:
[    3.817879] CPU: 0 PID: 64 Comm: kworker/u4:1 Not tainted 5.15.0 #1
[    3.824161] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[    3.830705] Workqueue: events_unbound deferred_probe_work_func
[    3.836565] PC is at stdp2690_get_edid+0x44/0x19c
[    3.841286] LR is at ge_b850v3_lvds_get_modes+0x2c/0x5c
[    3.846526] pc : [<805eae10>]    lr : [<805eb138>]    psr: 80000013
[    3.852802] sp : 81c359d0  ip : 7dbb550b  fp : 81c35a1c
[    3.858037] r10: 81c73840  r9 : 81c73894  r8 : 816d9800
[    3.863270] r7 : 00000000  r6 : 81c34000  r5 : 00000000  r4 : 810c35f0
[    3.869808] r3 : 80e3e294  r2 : 00000080  r1 : 00000cc0  r0 : 81401180
[    3.876349] Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    3.883499] Control: 10c5387d  Table: 1000404a  DAC: 00000051
[    3.889254] Register r0 information: slab kmem_cache start 81401180 pointer offset 0
[    3.897034] Register r1 information: non-paged memory
[    3.902097] Register r2 information: non-paged memory
[    3.907160] Register r3 information: non-slab/vmalloc memory
[    3.912832] Register r4 information: non-slab/vmalloc memory
[    3.918503] Register r5 information: NULL pointer
[    3.923217] Register r6 information: non-slab/vmalloc memory
[    3.928887] Register r7 information: NULL pointer
[    3.933601] Register r8 information: slab kmalloc-1k start 816d9800 pointer offset 0 size 1024
[    3.942244] Register r9 information: slab kmalloc-2k start 81c73800 pointer offset 148 size 2048
[    3.951058] Register r10 information: slab kmalloc-2k start 81c73800 pointer offset 64 size 2048
[    3.959873] Register r11 information: non-slab/vmalloc memory
[    3.965632] Register r12 information: non-paged memory
[    3.970781] Process kworker/u4:1 (pid: 64, stack limit = 0x(ptrval))
[    3.977148] Stack: (0x81c359d0 to 0x81c36000)
[    3.981517] 59c0:                                     80b2b668 80b2b5bc 000002e2 0000034e
[    3.989712] 59e0: 81c35a8c 816d98e8 81c35a14 7dbb550b 805bfcd0 810c35f0 81c73840 824addc0
[    3.997906] 5a00: 00001000 816d9800 81c73894 81c73840 81c35a34 81c35a20 805eb138 805eadd8
[    4.006099] 5a20: 810c35f0 00000045 81c35adc 81c35a38 80594188 805eb118 80d7c788 80dd1848
[    4.014292] 5a40: 00000000 81c35a50 80dca950 811194d3 80dca7c4 80dca944 80dca91c 816d9800
[    4.022485] 5a60: 81c34000 81c760a8 816d9800 80c58c98 810c35f0 816d98e8 00001000 00001000
[    4.030678] 5a80: 00000000 00000000 8017712c 81c60000 00000002 00000001 00000000 00000000
[    4.038870] 5aa0: 816d9900 816d9900 00000000 7dbb550b 805c700c 00000008 826282c8 826282c8
[    4.047062] 5ac0: 00001000 81e1ce40 00001000 00000002 81c35bf4 81c35ae0 805d9694 80593fc0
[    4.055255] 5ae0: 8017a970 80179ad8 00000179 00000000 81c35bcc 81c35b00 80177108 8017a950
[    4.063447] 5b00: 00000000 81c35b10 81c34000 00000000 81004fd8 81010a38 00000000 00000059
[    4.071639] 5b20: 816d98d4 81fbb718 00000013 826282c8 8017a940 81c35b40 81134448 00000400
[    4.079831] 5b40: 00000178 00000000 e063b9c1 00000000 c2000049 00000040 00000000 00000008
[    4.088024] 5b60: 82628300 82628380 00000000 00000000 81c34000 00000000 81fbb700 82628340
[    4.096216] 5b80: 826283c0 00001000 00000000 00000010 816d9800 826282c0 801766f8 00000000
[    4.104408] 5ba0: 00000000 81004fd8 00000049 00000000 00000000 00000001 80dcf940 80178de4
[    4.112601] 5bc0: 81c35c0c 7dbb550b 80178de4 81fbb700 00000010 00000010 810c35f4 81e1ce40
[    4.120793] 5be0: 81c40908 0000000c 81c35c64 81c35bf8 805a7f18 805d94a0 81c35c3c 816d9800
[    4.128985] 5c00: 00000010 81c34000 81c35c2c 81c35c18 8012fce0 805be90c 81c35c3c 81c35c28
[    4.137178] 5c20: 805be90c 80173210 81fbb600 81fbb6b4 81c35c5c 7dbb550b 81c35c64 81fbb700
[    4.145370] 5c40: 816d9800 00000010 810c35f4 81e1ce40 81c40908 0000000c 81c35c84 81c35c68
[    4.153565] 5c60: 805a8c78 805a7ed0 816d9800 81fbb700 00000010 00000000 81c35cac 81c35c88
[    4.161758] 5c80: 805a8dc4 805a8b68 816d9800 00000000 816d9800 00000000 8179f810 810c42d0
[    4.169950] 5ca0: 81c35ccc 81c35cb0 805e47b0 805a8d18 824aa240 81e1ea80 81c40908 81126b60
[    4.178144] 5cc0: 81c35d14 81c35cd0 8060db1c 805e46cc 81c35d14 81c35ce0 80dd90f8 810c4d58
[    4.186338] 5ce0: 80dd90dc 81fe9740 fffffffe 81fe9740 81e1ea80 00000000 810c4d6c 80c4b95c
[    4.194531] 5d00: 80dd9a3c 815c6810 81c35d34 81c35d18 8060dc9c 8060d8fc 8246b440 815c6800
[    4.202724] 5d20: 815c6810 eefd8e00 81c35d44 81c35d38 8060dd80 8060dbec 81c35d6c 81c35d48
[    4.210918] 5d40: 805e98a4 8060dd70 00000000 815c6810 810c45b0 81126e90 81126e90 80dd9a3c
[    4.219112] 5d60: 81c35d8c 81c35d70 80619574 805e9808 815c6810 00000000 810c45b0 81126e90
[    4.227305] 5d80: 81c35db4 81c35d90 806168dc 80619514 80625df0 80623c80 815c6810 810c45b0
[    4.235498] 5da0: 81c35e6c 815c6810 81c35dec 81c35db8 80616d04 80616800 81c35de4 81c35dc8
[    4.243691] 5dc0: 808382b0 80b2f444 8116e310 8116e314 81c35e6c 815c6810 00000003 80dd9a3c
[    4.251884] 5de0: 81c35e14 81c35df0 80616ec8 80616c60 00000001 810c45b0 81c35e6c 815c6810
[    4.260076] 5e00: 00000001 80dd9a3c 81c35e34 81c35e18 80617338 80616e90 00000000 81c35e6c
[    4.268269] 5e20: 80617284 81c34000 81c35e64 81c35e38 80614730 80617290 81c35e64 8171a06c
[    4.276461] 5e40: 81e220b8 7dbb550b 815c6810 81c34000 815c6854 81126e90 81c35e9c 81c35e68
[    4.284654] 5e60: 8061673c 806146a8 8060f5e0 815c6810 00000001 7dbb550b 00000000 810c5080
[    4.292847] 5e80: 810c5320 815c6810 81126e90 00000000 81c35eac 81c35ea0 80617554 80616650
[    4.301040] 5ea0: 81c35ecc 81c35eb0 80615694 80617544 810c5080 810c5080 810c5094 81126e90
[    4.309233] 5ec0: 81c35efc 81c35ed0 80615c6c 8061560c 80615bc0 810c50c0 817eeb00 81412800
[    4.317425] 5ee0: 814c3000 00000000 814c300d 81119a60 81c35f3c 81c35f00 80141488 80615bcc
[    4.325618] 5f00: 81c60000 81c34000 81c35f24 81c35f18 80143078 817eeb00 81412800 817eeb18
[    4.333811] 5f20: 81412818 81003d00 00000088 81412800 81c35f74 81c35f40 80141a48 80141298
[    4.342005] 5f40: 81c35f74 81c34000 801481ac 817efa40 817efc00 801417d8 817eeb00 00000000
[    4.350199] 5f60: 815a7e7c 81c34000 81c35fac 81c35f78 80149b1c 801417e4 817efc20 817efc20
[    4.358391] 5f80: ffffe000 817efa40 801499a8 00000000 00000000 00000000 00000000 00000000
[    4.366583] 5fa0: 00000000 81c35fb0 80100130 801499b4 00000000 00000000 00000000 00000000
[    4.374774] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    4.382966] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[    4.391155] Backtrace:
[    4.393613] [<805eadcc>] (stdp2690_get_edid) from [<805eb138>] (ge_b850v3_lvds_get_modes+0x2c/0x5c)
[    4.402691]  r10:81c73840 r9:81c73894 r8:816d9800 r7:00001000 r6:824addc0 r5:81c73840
[    4.410534]  r4:810c35f0
[    4.413073] [<805eb10c>] (ge_b850v3_lvds_get_modes) from [<80594188>] (drm_helper_probe_single_connector_modes+0x1d4/0x84c)
[    4.424240]  r5:00000045 r4:810c35f0
[    4.427822] [<80593fb4>] (drm_helper_probe_single_connector_modes) from [<805d9694>] (drm_client_modeset_probe+0x200/0x1384)
[    4.439074]  r10:00000002 r9:00001000 r8:81e1ce40 r7:00001000 r6:826282c8 r5:826282c8
[    4.446917]  r4:00000008
[    4.449455] [<805d9494>] (drm_client_modeset_probe) from [<805a7f18>] (__drm_fb_helper_initial_config_and_unlock+0x54/0x5b4)
[    4.460713]  r10:0000000c r9:81c40908 r8:81e1ce40 r7:810c35f4 r6:00000010 r5:00000010
[    4.468556]  r4:81fbb700
[    4.471095] [<805a7ec4>] (__drm_fb_helper_initial_config_and_unlock) from [<805a8c78>] (drm_fbdev_client_hotplug+0x11c/0x1b0)
[    4.482434]  r10:0000000c r9:81c40908 r8:81e1ce40 r7:810c35f4 r6:00000010 r5:816d9800
[    4.490276]  r4:81fbb700
[    4.492814] [<805a8b5c>] (drm_fbdev_client_hotplug) from [<805a8dc4>] (drm_fbdev_generic_setup+0xb8/0x1a4)
[    4.502494]  r7:00000000 r6:00000010 r5:81fbb700 r4:816d9800
[    4.508160] [<805a8d0c>] (drm_fbdev_generic_setup) from [<805e47b0>] (imx_drm_bind+0xf0/0x130)
[    4.516805]  r7:810c42d0 r6:8179f810 r5:00000000 r4:816d9800
[    4.522474] [<805e46c0>] (imx_drm_bind) from [<8060db1c>] (try_to_bring_up_master+0x22c/0x2f0)
[    4.531116]  r7:81126b60 r6:81c40908 r5:81e1ea80 r4:824aa240
[    4.536783] [<8060d8f0>] (try_to_bring_up_master) from [<8060dc9c>] (__component_add+0xbc/0x184)
[    4.545597]  r10:815c6810 r9:80dd9a3c r8:80c4b95c r7:810c4d6c r6:00000000 r5:81e1ea80
[    4.553440]  r4:81fe9740
[    4.555980] [<8060dbe0>] (__component_add) from [<8060dd80>] (component_add+0x1c/0x20)
[    4.563921]  r7:eefd8e00 r6:815c6810 r5:815c6800 r4:8246b440
[    4.569589] [<8060dd64>] (component_add) from [<805e98a4>] (dw_hdmi_imx_probe+0xa8/0xe8)
[    4.577702] [<805e97fc>] (dw_hdmi_imx_probe) from [<80619574>] (platform_probe+0x6c/0xc8)
[    4.585908]  r9:80dd9a3c r8:81126e90 r7:81126e90 r6:810c45b0 r5:815c6810 r4:00000000
[    4.593662] [<80619508>] (platform_probe) from [<806168dc>] (really_probe+0xe8/0x460)
[    4.601524]  r7:81126e90 r6:810c45b0 r5:00000000 r4:815c6810
[    4.607191] [<806167f4>] (really_probe) from [<80616d04>] (__driver_probe_device+0xb0/0x230)
[    4.615658]  r7:815c6810 r6:81c35e6c r5:810c45b0 r4:815c6810
[    4.621326] [<80616c54>] (__driver_probe_device) from [<80616ec8>] (driver_probe_device+0x44/0xe0)
[    4.630313]  r9:80dd9a3c r8:00000003 r7:815c6810 r6:81c35e6c r5:8116e314 r4:8116e310
[    4.638068] [<80616e84>] (driver_probe_device) from [<80617338>] (__device_attach_driver+0xb4/0x12c)
[    4.647227]  r9:80dd9a3c r8:00000001 r7:815c6810 r6:81c35e6c r5:810c45b0 r4:00000001
[    4.654981] [<80617284>] (__device_attach_driver) from [<80614730>] (bus_for_each_drv+0x94/0xd8)
[    4.663794]  r7:81c34000 r6:80617284 r5:81c35e6c r4:00000000
[    4.669461] [<8061469c>] (bus_for_each_drv) from [<8061673c>] (__device_attach+0xf8/0x190)
[    4.677753]  r7:81126e90 r6:815c6854 r5:81c34000 r4:815c6810
[    4.683419] [<80616644>] (__device_attach) from [<80617554>] (device_initial_probe+0x1c/0x20)
[    4.691971]  r8:00000000 r7:81126e90 r6:815c6810 r5:810c5320 r4:810c5080
[    4.698681] [<80617538>] (device_initial_probe) from [<80615694>] (bus_probe_device+0x94/0x9c)
[    4.707318] [<80615600>] (bus_probe_device) from [<80615c6c>] (deferred_probe_work_func+0xac/0xf0)
[    4.716305]  r7:81126e90 r6:810c5094 r5:810c5080 r4:810c5080
[    4.721973] [<80615bc0>] (deferred_probe_work_func) from [<80141488>] (process_one_work+0x1fc/0x54c)
[    4.731139]  r10:81119a60 r9:814c300d r8:00000000 r7:814c3000 r6:81412800 r5:817eeb00
[    4.738981]  r4:810c50c0 r3:80615bc0
[    4.742563] [<8014128c>] (process_one_work) from [<80141a48>] (worker_thread+0x270/0x570)
[    4.750765]  r10:81412800 r9:00000088 r8:81003d00 r7:81412818 r6:817eeb18 r5:81412800
[    4.758608]  r4:817eeb00
[    4.761147] [<801417d8>] (worker_thread) from [<80149b1c>] (kthread+0x174/0x190)
[    4.768574]  r10:81c34000 r9:815a7e7c r8:00000000 r7:817eeb00 r6:801417d8 r5:817efc00
[    4.776417]  r4:817efa40
[    4.778955] [<801499a8>] (kthread) from [<80100130>] (ret_from_fork+0x14/0x24)
[    4.786201] Exception stack(0x81c35fb0 to 0x81c35ff8)
[    4.791266] 5fa0:                                     00000000 00000000 00000000 00000000
[    4.799459] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    4.807651] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    4.814279]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:801499a8
[    4.822120]  r4:817efa40
[    4.824664] Code: e3a02080 e593001c e3a01d33 e3a05000 (e5979018)

Split the registration from the STDP4028 probe routine and only perform
registration once both the STDP4028 and STDP2690 have probed.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
CC: Peter Senna Tschudin <peter.senna@gmail.com>
CC: Martyn Welch <martyn.welch@collabora.co.uk>
CC: Neil Armstrong <narmstrong@baylibre.com>
CC: Robert Foss <robert.foss@linaro.org>
CC: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
CC: Jonas Karlman <jonas@kwiboo.se>
CC: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/43552c3404e8fdf92d8bc5658fac24e9f03c2c57.1637836606.git.martyn.welch@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../bridge/megachips-stdpxxxx-ge-b850v3-fw.c  | 40 +++++++++++++------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index d2808c4a6fb1c..cce98bf2a4e73 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -306,19 +306,10 @@ out:
 	mutex_unlock(&ge_b850v3_lvds_dev_mutex);
 }
 
-static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
-				       const struct i2c_device_id *id)
+static int ge_b850v3_register(void)
 {
+	struct i2c_client *stdp4028_i2c = ge_b850v3_lvds_ptr->stdp4028_i2c;
 	struct device *dev = &stdp4028_i2c->dev;
-	int ret;
-
-	ret = ge_b850v3_lvds_init(dev);
-
-	if (ret)
-		return ret;
-
-	ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
-	i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
 
 	/* drm bridge initialization */
 	ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs;
@@ -343,6 +334,27 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
 			"ge-b850v3-lvds-dp", ge_b850v3_lvds_ptr);
 }
 
+static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
+				       const struct i2c_device_id *id)
+{
+	struct device *dev = &stdp4028_i2c->dev;
+	int ret;
+
+	ret = ge_b850v3_lvds_init(dev);
+
+	if (ret)
+		return ret;
+
+	ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
+	i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
+
+	/* Only register after both bridges are probed */
+	if (!ge_b850v3_lvds_ptr->stdp2690_i2c)
+		return 0;
+
+	return ge_b850v3_register();
+}
+
 static int stdp4028_ge_b850v3_fw_remove(struct i2c_client *stdp4028_i2c)
 {
 	ge_b850v3_lvds_remove();
@@ -386,7 +398,11 @@ static int stdp2690_ge_b850v3_fw_probe(struct i2c_client *stdp2690_i2c,
 	ge_b850v3_lvds_ptr->stdp2690_i2c = stdp2690_i2c;
 	i2c_set_clientdata(stdp2690_i2c, ge_b850v3_lvds_ptr);
 
-	return 0;
+	/* Only register after both bridges are probed */
+	if (!ge_b850v3_lvds_ptr->stdp4028_i2c)
+		return 0;
+
+	return ge_b850v3_register();
 }
 
 static int stdp2690_ge_b850v3_fw_remove(struct i2c_client *stdp2690_i2c)
-- 
GitLab


From f0653cd4da669cbcddd81f8edd9f542805252691 Mon Sep 17 00:00:00 2001
From: Fugang Duan <fugang.duan@nxp.com>
Date: Thu, 25 Nov 2021 10:03:49 +0800
Subject: [PATCH 3191/4878] tty: serial: imx: disable UCR4_OREN in .stop_rx()
 instead of .shutdown()

[ Upstream commit 028e083832b06fdeeb290e1e57dc1f6702c4c215 ]

The UCR4_OREN should be disabled before disabling the uart receiver in
.stop_rx() instead of in the .shutdown().

Otherwise, if we have the overrun error during the receiver disable
process, the overrun interrupt will keep trigging until we disable the
OREN interrupt in the .shutdown(), because the ORE status can only be
cleared when read the rx FIFO or reset the controller.  Although the
called time between the receiver disable and OREN disable in .shutdown()
is very short, there is still the risk of endless interrupt during this
short period of time. So here change to disable OREN before the receiver
been disabled in .stop_rx().

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20211125020349.4980-1-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/imx.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 28cc328ddb6eb..93cd8ad57f385 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -508,18 +508,21 @@ static void imx_uart_stop_tx(struct uart_port *port)
 static void imx_uart_stop_rx(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
-	u32 ucr1, ucr2;
+	u32 ucr1, ucr2, ucr4;
 
 	ucr1 = imx_uart_readl(sport, UCR1);
 	ucr2 = imx_uart_readl(sport, UCR2);
+	ucr4 = imx_uart_readl(sport, UCR4);
 
 	if (sport->dma_is_enabled) {
 		ucr1 &= ~(UCR1_RXDMAEN | UCR1_ATDMAEN);
 	} else {
 		ucr1 &= ~UCR1_RRDYEN;
 		ucr2 &= ~UCR2_ATEN;
+		ucr4 &= ~UCR4_OREN;
 	}
 	imx_uart_writel(sport, ucr1, UCR1);
+	imx_uart_writel(sport, ucr4, UCR4);
 
 	ucr2 &= ~UCR2_RXEN;
 	imx_uart_writel(sport, ucr2, UCR2);
@@ -1576,7 +1579,7 @@ static void imx_uart_shutdown(struct uart_port *port)
 	imx_uart_writel(sport, ucr1, UCR1);
 
 	ucr4 = imx_uart_readl(sport, UCR4);
-	ucr4 &= ~(UCR4_OREN | UCR4_TCEN);
+	ucr4 &= ~UCR4_TCEN;
 	imx_uart_writel(sport, ucr4, UCR4);
 
 	spin_unlock_irqrestore(&sport->port.lock, flags);
-- 
GitLab


From f4295b7dca8751a4d150eadb95d33671818e37b4 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 25 Nov 2021 21:30:10 +0100
Subject: [PATCH 3192/4878] gpiolib: acpi: Do not set the IRQ type if the IRQ
 is already in use

[ Upstream commit bdfd6ab8fdccd8b138837efff66f4a1911496378 ]

If the IRQ is already in use, then acpi_dev_gpio_irq_get_by() really
should not change the type underneath the current owner.

I specifically hit an issue with this an a Chuwi Hi8 Super (CWI509) Bay
Trail tablet, when the Boot OS selection in the BIOS is set to Android.
In this case _STA for a MAX17047 ACPI I2C device wrongly returns 0xf and
the _CRS resources for this device include a GpioInt pointing to a GPIO
already in use by an _AEI handler, with a different type then specified
in the _CRS for the MAX17047 device. Leading to the acpi_dev_gpio_irq_get()
call done by the i2c-core-acpi.c code changing the type breaking the
_AEI handler.

Now this clearly is a bug in the DSDT of this tablet (in Android mode),
but in general calling irq_set_irq_type() on an IRQ which already is
in use seems like a bad idea.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpiolib-acpi.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 6f11714ce0239..55e4f402ec8b6 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -969,10 +969,17 @@ int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int ind
 			irq_flags = acpi_dev_get_irq_type(info.triggering,
 							  info.polarity);
 
-			/* Set type if specified and different than the current one */
-			if (irq_flags != IRQ_TYPE_NONE &&
-			    irq_flags != irq_get_trigger_type(irq))
-				irq_set_irq_type(irq, irq_flags);
+			/*
+			 * If the IRQ is not already in use then set type
+			 * if specified and different than the current one.
+			 */
+			if (can_request_irq(irq, irq_flags)) {
+				if (irq_flags != IRQ_TYPE_NONE &&
+				    irq_flags != irq_get_trigger_type(irq))
+					irq_set_irq_type(irq, irq_flags);
+			} else {
+				dev_dbg(&adev->dev, "IRQ %d already in use\n", irq);
+			}
 
 			return irq;
 		}
-- 
GitLab


From 240cf5d3cb5e4d3eb1b7abc83b54563fe992d306 Mon Sep 17 00:00:00 2001
From: Chengfeng Ye <cyeaa@connect.ust.hk>
Date: Fri, 5 Nov 2021 06:45:07 -0700
Subject: [PATCH 3193/4878] HSI: core: Fix return freed object in
 hsi_new_client

[ Upstream commit a1ee1c08fcd5af03187dcd41dcab12fd5b379555 ]

cl is freed on error of calling device_register, but this
object is return later, which will cause uaf issue. Fix it
by return NULL on error.

Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hsi/hsi_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hsi/hsi_core.c b/drivers/hsi/hsi_core.c
index a5f92e2889cb8..a330f58d45fc6 100644
--- a/drivers/hsi/hsi_core.c
+++ b/drivers/hsi/hsi_core.c
@@ -102,6 +102,7 @@ struct hsi_client *hsi_new_client(struct hsi_port *port,
 	if (device_register(&cl->device) < 0) {
 		pr_err("hsi: failed to register client: %s\n", info->name);
 		put_device(&cl->device);
+		goto err;
 	}
 
 	return cl;
-- 
GitLab


From 8a6371d84c5f80218ae35f31f26a5fb230ef4dba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stephan=20M=C3=BCller?= <smueller@chronox.de>
Date: Sun, 21 Nov 2021 15:14:20 +0100
Subject: [PATCH 3194/4878] crypto: jitter - consider 32 LSB for APT

[ Upstream commit 552d03a223eda3df84526ab2c1f4d82e15eaee7a ]

The APT compares the current time stamp with a pre-set value. The
current code only considered the 4 LSB only. Yet, after reviews by
mathematicians of the user space Jitter RNG version >= 3.1.0, it was
concluded that the APT can be calculated on the 32 LSB of the time
delta. Thi change is applied to the kernel.

This fixes a bug where an AMD EPYC fails this test as its RDTSC value
contains zeros in the LSB. The most appropriate fix would have been to
apply a GCD calculation and divide the time stamp by the GCD. Yet, this
is a significant code change that will be considered for a future
update. Note, tests showed that constantly the GCD always was 32 on
these systems, i.e. the 5 LSB were always zero (thus failing the APT
since it only considered the 4 LSB for its calculation).

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 crypto/jitterentropy.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crypto/jitterentropy.c b/crypto/jitterentropy.c
index 6e147c43fc186..37c4c308339e4 100644
--- a/crypto/jitterentropy.c
+++ b/crypto/jitterentropy.c
@@ -265,7 +265,6 @@ static int jent_stuck(struct rand_data *ec, __u64 current_delta)
 {
 	__u64 delta2 = jent_delta(ec->last_delta, current_delta);
 	__u64 delta3 = jent_delta(ec->last_delta2, delta2);
-	unsigned int delta_masked = current_delta & JENT_APT_WORD_MASK;
 
 	ec->last_delta = current_delta;
 	ec->last_delta2 = delta2;
@@ -274,7 +273,7 @@ static int jent_stuck(struct rand_data *ec, __u64 current_delta)
 	 * Insert the result of the comparison of two back-to-back time
 	 * deltas.
 	 */
-	jent_apt_insert(ec, delta_masked);
+	jent_apt_insert(ec, current_delta);
 
 	if (!current_delta || !delta2 || !delta3) {
 		/* RCT with a stuck bit */
-- 
GitLab


From 6036500fdf77caaca9333003f78d25a3d61c4e40 Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Sat, 30 Oct 2021 22:42:50 -0400
Subject: [PATCH 3195/4878] mwifiex: Fix skb_over_panic in mwifiex_usb_recv()

[ Upstream commit 04d80663f67ccef893061b49ec8a42ff7045ae84 ]

Currently, with an unknown recv_type, mwifiex_usb_recv
just return -1 without restoring the skb. Next time
mwifiex_usb_rx_complete is invoked with the same skb,
calling skb_put causes skb_over_panic.

The bug is triggerable with a compromised/malfunctioning
usb device. After applying the patch, skb_over_panic
no longer shows up with the same input.

Attached is the panic report from fuzzing.
skbuff: skb_over_panic: text:000000003bf1b5fa
 len:2048 put:4 head:00000000dd6a115b data:000000000a9445d8
 tail:0x844 end:0x840 dev:<NULL>
kernel BUG at net/core/skbuff.c:109!
invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 PID: 198 Comm: in:imklog Not tainted 5.6.0 #60
RIP: 0010:skb_panic+0x15f/0x161
Call Trace:
 <IRQ>
 ? mwifiex_usb_rx_complete+0x26b/0xfcd [mwifiex_usb]
 skb_put.cold+0x24/0x24
 mwifiex_usb_rx_complete+0x26b/0xfcd [mwifiex_usb]
 __usb_hcd_giveback_urb+0x1e4/0x380
 usb_giveback_urb_bh+0x241/0x4f0
 ? __hrtimer_run_queues+0x316/0x740
 ? __usb_hcd_giveback_urb+0x380/0x380
 tasklet_action_common.isra.0+0x135/0x330
 __do_softirq+0x18c/0x634
 irq_exit+0x114/0x140
 smp_apic_timer_interrupt+0xde/0x380
 apic_timer_interrupt+0xf/0x20
 </IRQ>

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YX4CqjfRcTa6bVL+@Zekuns-MBP-16.fios-router.home
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c b/drivers/net/wireless/marvell/mwifiex/usb.c
index 9736aa0ab7fd4..8f01fcbe93961 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -130,7 +130,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
 		default:
 			mwifiex_dbg(adapter, ERROR,
 				    "unknown recv_type %#x\n", recv_type);
-			return -1;
+			ret = -1;
+			goto exit_restore_skb;
 		}
 		break;
 	case MWIFIEX_USB_EP_DATA:
-- 
GitLab


From 75258767506829420ec00f7eec98239c4f9f5360 Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Fri, 29 Oct 2021 15:49:03 -0400
Subject: [PATCH 3196/4878] rsi: Fix use-after-free in rsi_rx_done_handler()

[ Upstream commit b07e3c6ebc0c20c772c0f54042e430acec2945c3 ]

When freeing rx_cb->rx_skb, the pointer is not set to NULL,
a later rsi_rx_done_handler call will try to read the freed
address.
This bug will very likley lead to double free, although
detected early as use-after-free bug.

The bug is triggerable with a compromised/malfunctional usb
device. After applying the patch, the same input no longer
triggers the use-after-free.

Attached is the kasan report from fuzzing.

BUG: KASAN: use-after-free in rsi_rx_done_handler+0x354/0x430 [rsi_usb]
Read of size 4 at addr ffff8880188e5930 by task modprobe/231
Call Trace:
 <IRQ>
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 ? rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 __kasan_report.cold+0x37/0x7c
 ? dma_direct_unmap_page+0x90/0x110
 ? rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 kasan_report+0xe/0x20
 rsi_rx_done_handler+0x354/0x430 [rsi_usb]
 __usb_hcd_giveback_urb+0x1e4/0x380
 usb_giveback_urb_bh+0x241/0x4f0
 ? __usb_hcd_giveback_urb+0x380/0x380
 ? apic_timer_interrupt+0xa/0x20
 tasklet_action_common.isra.0+0x135/0x330
 __do_softirq+0x18c/0x634
 ? handle_irq_event+0xcd/0x157
 ? handle_edge_irq+0x1eb/0x7b0
 irq_exit+0x114/0x140
 do_IRQ+0x91/0x1e0
 common_interrupt+0xf/0xf
 </IRQ>

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXxQL/vIiYcZUu/j@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/rsi/rsi_91x_usb.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index d881df9ebd0c3..7f34148c7dfe5 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -269,8 +269,12 @@ static void rsi_rx_done_handler(struct urb *urb)
 	struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)rx_cb->data;
 	int status = -EINVAL;
 
+	if (!rx_cb->rx_skb)
+		return;
+
 	if (urb->status) {
 		dev_kfree_skb(rx_cb->rx_skb);
+		rx_cb->rx_skb = NULL;
 		return;
 	}
 
@@ -294,8 +298,10 @@ out:
 	if (rsi_rx_urb_submit(dev->priv, rx_cb->ep_num, GFP_ATOMIC))
 		rsi_dbg(ERR_ZONE, "%s: Failed in urb submission", __func__);
 
-	if (status)
+	if (status) {
 		dev_kfree_skb(rx_cb->rx_skb);
+		rx_cb->rx_skb = NULL;
+	}
 }
 
 static void rsi_rx_urb_kill(struct rsi_hw *adapter, u8 ep_num)
-- 
GitLab


From ab523ea096ef289da0f4431a4395f0ceb1e4ede9 Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Fri, 29 Oct 2021 16:19:23 -0400
Subject: [PATCH 3197/4878] rsi: Fix out-of-bounds read in rsi_read_pkt()

[ Upstream commit f1cb3476e48b60c450ec3a1d7da0805bffc6e43a ]

rsi_get_* functions rely on an offset variable from usb
input. The size of usb input is RSI_MAX_RX_USB_PKT_SIZE(3000),
while 2-byte offset can be up to 0xFFFF. Thus a large offset
can cause out-of-bounds read.

The patch adds a bound checking condition when rcv_pkt_len is 0,
indicating it's USB. It's unclear whether this is triggerable
from other type of bus. The following check might help in that case.
offset > rcv_pkt_len - FRAME_DESC_SZ

The bug is trigerrable with conpromised/malfunctioning USB devices.
I tested the patch with the crashing input and got no more bug report.

Attached is the KASAN report from fuzzing.

BUG: KASAN: slab-out-of-bounds in rsi_read_pkt+0x42e/0x500 [rsi_91x]
Read of size 2 at addr ffff888019439fdb by task RX-Thread/227

CPU: 0 PID: 227 Comm: RX-Thread Not tainted 5.6.0 #66
Call Trace:
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? rsi_read_pkt+0x42e/0x500 [rsi_91x]
 ? rsi_read_pkt+0x42e/0x500 [rsi_91x]
 __kasan_report.cold+0x37/0x7c
 ? rsi_read_pkt+0x42e/0x500 [rsi_91x]
 kasan_report+0xe/0x20
 rsi_read_pkt+0x42e/0x500 [rsi_91x]
 rsi_usb_rx_thread+0x1b1/0x2fc [rsi_usb]
 ? rsi_probe+0x16a0/0x16a0 [rsi_usb]
 ? _raw_spin_lock_irqsave+0x7b/0xd0
 ? _raw_spin_trylock_bh+0x120/0x120
 ? __wake_up_common+0x10b/0x520
 ? rsi_probe+0x16a0/0x16a0 [rsi_usb]
 kthread+0x2b5/0x3b0
 ? kthread_create_on_node+0xd0/0xd0
 ret_from_fork+0x22/0x40

Reported-by: Brendan Dolan-Gavitt <brendandg@nyu.edu>
Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/YXxXS4wgu2OsmlVv@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/rsi/rsi_91x_main.c | 4 ++++
 drivers/net/wireless/rsi/rsi_91x_usb.c  | 1 -
 drivers/net/wireless/rsi/rsi_usb.h      | 2 ++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rsi/rsi_91x_main.c b/drivers/net/wireless/rsi/rsi_91x_main.c
index 8c638cfeac52f..fe8aed58ac088 100644
--- a/drivers/net/wireless/rsi/rsi_91x_main.c
+++ b/drivers/net/wireless/rsi/rsi_91x_main.c
@@ -23,6 +23,7 @@
 #include "rsi_common.h"
 #include "rsi_coex.h"
 #include "rsi_hal.h"
+#include "rsi_usb.h"
 
 u32 rsi_zone_enabled = /* INFO_ZONE |
 			INIT_ZONE |
@@ -168,6 +169,9 @@ int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len)
 		frame_desc = &rx_pkt[index];
 		actual_length = *(u16 *)&frame_desc[0];
 		offset = *(u16 *)&frame_desc[2];
+		if (!rcv_pkt_len && offset >
+			RSI_MAX_RX_USB_PKT_SIZE - FRAME_DESC_SZ)
+			goto fail;
 
 		queueno = rsi_get_queueno(frame_desc, offset);
 		length = rsi_get_length(frame_desc, offset);
diff --git a/drivers/net/wireless/rsi/rsi_91x_usb.c b/drivers/net/wireless/rsi/rsi_91x_usb.c
index 7f34148c7dfe5..11388a1469621 100644
--- a/drivers/net/wireless/rsi/rsi_91x_usb.c
+++ b/drivers/net/wireless/rsi/rsi_91x_usb.c
@@ -328,7 +328,6 @@ static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t mem_flags)
 	struct sk_buff *skb;
 	u8 dword_align_bytes = 0;
 
-#define RSI_MAX_RX_USB_PKT_SIZE	3000
 	skb = dev_alloc_skb(RSI_MAX_RX_USB_PKT_SIZE);
 	if (!skb)
 		return -ENOMEM;
diff --git a/drivers/net/wireless/rsi/rsi_usb.h b/drivers/net/wireless/rsi/rsi_usb.h
index 8702f434b5699..ad88f8c70a351 100644
--- a/drivers/net/wireless/rsi/rsi_usb.h
+++ b/drivers/net/wireless/rsi/rsi_usb.h
@@ -44,6 +44,8 @@
 #define RSI_USB_BUF_SIZE	     4096
 #define RSI_USB_CTRL_BUF_SIZE	     0x04
 
+#define RSI_MAX_RX_USB_PKT_SIZE	3000
+
 struct rx_usb_ctrl_block {
 	u8 *data;
 	struct urb *rx_urb;
-- 
GitLab


From adbe148672779c2164aaaf934df7b65769a09ed6 Mon Sep 17 00:00:00 2001
From: Sriram R <quic_srirrama@quicinc.com>
Date: Thu, 25 Nov 2021 15:00:14 +0530
Subject: [PATCH 3198/4878] ath11k: Avoid NULL ptr access during mgmt tx
 cleanup

[ Upstream commit a93789ae541c7d5c1c2a4942013adb6bcc5e2848 ]

Currently 'ar' reference is not added in skb_cb during
WMI mgmt tx. Though this is generally not used during tx completion
callbacks, on interface removal the remaining idr cleanup callback
uses the ar ptr from skb_cb from mgmt txmgmt_idr. Hence
fill them during tx call for proper usage.

Also free the skb which is missing currently in these
callbacks.

Crash_info:

[19282.489476] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[19282.489515] pgd = 91eb8000
[19282.496702] [00000000] *pgd=00000000
[19282.502524] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[19282.783728] PC is at ath11k_mac_vif_txmgmt_idr_remove+0x28/0xd8 [ath11k]
[19282.789170] LR is at idr_for_each+0xa0/0xc8

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00729-QCAHKSWPL_SILICONZ-3 v2
Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1637832614-13831-1-git-send-email-quic_srirrama@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 35 +++++++++++++++------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 18e841e1a016d..cc9122f420243 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <net/mac80211.h>
@@ -3883,23 +3884,32 @@ static int __ath11k_set_antenna(struct ath11k *ar, u32 tx_ant, u32 rx_ant)
 	return 0;
 }
 
-int ath11k_mac_tx_mgmt_pending_free(int buf_id, void *skb, void *ctx)
+static void ath11k_mac_tx_mgmt_free(struct ath11k *ar, int buf_id)
 {
-	struct sk_buff *msdu = skb;
+	struct sk_buff *msdu;
 	struct ieee80211_tx_info *info;
-	struct ath11k *ar = ctx;
-	struct ath11k_base *ab = ar->ab;
 
 	spin_lock_bh(&ar->txmgmt_idr_lock);
-	idr_remove(&ar->txmgmt_idr, buf_id);
+	msdu = idr_remove(&ar->txmgmt_idr, buf_id);
 	spin_unlock_bh(&ar->txmgmt_idr_lock);
-	dma_unmap_single(ab->dev, ATH11K_SKB_CB(msdu)->paddr, msdu->len,
+
+	if (!msdu)
+		return;
+
+	dma_unmap_single(ar->ab->dev, ATH11K_SKB_CB(msdu)->paddr, msdu->len,
 			 DMA_TO_DEVICE);
 
 	info = IEEE80211_SKB_CB(msdu);
 	memset(&info->status, 0, sizeof(info->status));
 
 	ieee80211_free_txskb(ar->hw, msdu);
+}
+
+int ath11k_mac_tx_mgmt_pending_free(int buf_id, void *skb, void *ctx)
+{
+	struct ath11k *ar = ctx;
+
+	ath11k_mac_tx_mgmt_free(ar, buf_id);
 
 	return 0;
 }
@@ -3908,17 +3918,10 @@ static int ath11k_mac_vif_txmgmt_idr_remove(int buf_id, void *skb, void *ctx)
 {
 	struct ieee80211_vif *vif = ctx;
 	struct ath11k_skb_cb *skb_cb = ATH11K_SKB_CB((struct sk_buff *)skb);
-	struct sk_buff *msdu = skb;
 	struct ath11k *ar = skb_cb->ar;
-	struct ath11k_base *ab = ar->ab;
 
-	if (skb_cb->vif == vif) {
-		spin_lock_bh(&ar->txmgmt_idr_lock);
-		idr_remove(&ar->txmgmt_idr, buf_id);
-		spin_unlock_bh(&ar->txmgmt_idr_lock);
-		dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len,
-				 DMA_TO_DEVICE);
-	}
+	if (skb_cb->vif == vif)
+		ath11k_mac_tx_mgmt_free(ar, buf_id);
 
 	return 0;
 }
@@ -3933,6 +3936,8 @@ static int ath11k_mac_mgmt_tx_wmi(struct ath11k *ar, struct ath11k_vif *arvif,
 	int buf_id;
 	int ret;
 
+	ATH11K_SKB_CB(skb)->ar = ar;
+
 	spin_lock_bh(&ar->txmgmt_idr_lock);
 	buf_id = idr_alloc(&ar->txmgmt_idr, skb, 0,
 			   ATH11K_TX_MGMT_NUM_PENDING_MAX, GFP_ATOMIC);
-- 
GitLab


From cf3b1a160dc2bc8bb3cb4b61dd5a6538c7eb19f9 Mon Sep 17 00:00:00 2001
From: Mansur Alisha Shaik <mansur@codeaurora.org>
Date: Mon, 8 Nov 2021 06:48:51 +0100
Subject: [PATCH 3199/4878] media: venus: avoid calling core_clk_setrate()
 concurrently during concurrent video sessions

[ Upstream commit 91f2b7d269e5c885c38c7ffa261f5276bd42f907 ]

In existing implementation, core_clk_setrate() is getting called
concurrently in concurrent video sessions. Before the previous call to
core_clk_setrate returns, new call to core_clk_setrate is invoked from
another video session running concurrently. This results in latest
calculated frequency being set (higher/lower) instead of actual frequency
required for that video session. It also results in stability crashes
mention below. These resources are specific to video core, hence keeping
under core lock would ensure that they are estimated for all running video
sessions and called once for the video core.

Crash logs:

[    1.900089] WARNING: CPU: 4 PID: 1 at drivers/opp/debugfs.c:33 opp_debug_remove_one+0x2c/0x48
[    1.908493] Modules linked in:
[    1.911524] CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.10.67 #35 f8edb8c30cf2dd6838495dd9ef9be47af7f5f60c
[    1.921036] Hardware name: Qualcomm Technologies, Inc. sc7280 IDP SKU2 platform (DT)
[    1.928673] pstate: 60800009 (nZCv daif -PAN +UAO -TCO BTYPE=--)
[    1.934608] pc : opp_debug_remove_one+0x2c/0x48
[    1.939080] lr : opp_debug_remove_one+0x2c/0x48
[    1.943560] sp : ffffffc011d7b7f0
[    1.946836] pmr_save: 000000e0
[    1.949854] x29: ffffffc011d7b7f0 x28: ffffffc010733bbc
[    1.955104] x27: ffffffc010733ba8 x26: ffffff8083cedd00
[    1.960355] x25: 0000000000000001 x24: 0000000000000000
[    1.965603] x23: ffffff8083cc2878 x22: ffffff8083ceb900
[    1.970852] x21: ffffff8083ceb910 x20: ffffff8083cc2800
[    1.976101] x19: ffffff8083ceb900 x18: 00000000ffff0a10
[    1.981352] x17: ffffff80837a5620 x16: 00000000000000ec
[    1.986601] x15: ffffffc010519ad4 x14: 0000000000000003
[    1.991849] x13: 0000000000000004 x12: 0000000000000001
[    1.997100] x11: c0000000ffffdfff x10: 00000000ffffffff
[    2.002348] x9 : d2627c580300dc00 x8 : d2627c580300dc00
[    2.007596] x7 : 0720072007200720 x6 : ffffff80802ecf00
[    2.012845] x5 : 0000000000190004 x4 : 0000000000000000
[    2.018094] x3 : ffffffc011d7b478 x2 : ffffffc011d7b480
[    2.023343] x1 : 00000000ffffdfff x0 : 0000000000000017
[    2.028594] Call trace:
[    2.031022]  opp_debug_remove_one+0x2c/0x48
[    2.035160]  dev_pm_opp_put+0x94/0xb0
[    2.038780]  _opp_remove_all+0x7c/0xc8
[    2.042486]  _opp_remove_all_static+0x54/0x7c
[    2.046796]  dev_pm_opp_remove_table+0x74/0x98
[    2.051183]  devm_pm_opp_of_table_release+0x18/0x24
[    2.056001]  devm_action_release+0x1c/0x28
[    2.060053]  release_nodes+0x23c/0x2b8
[    2.063760]  devres_release_group+0xcc/0xd0
[    2.067900]  component_bind+0xac/0x168
[    2.071608]  component_bind_all+0x98/0x124
[    2.075664]  msm_drm_bind+0x1e8/0x678
[    2.079287]  try_to_bring_up_master+0x60/0x134
[    2.083674]  component_master_add_with_match+0xd8/0x120
[    2.088834]  msm_pdev_probe+0x20c/0x2a0
[    2.092629]  platform_drv_probe+0x9c/0xbc
[    2.096598]  really_probe+0x11c/0x46c
[    2.100217]  driver_probe_device+0x8c/0xf0
[    2.104270]  device_driver_attach+0x54/0x78
[    2.108407]  __driver_attach+0x48/0x148
[    2.112201]  bus_for_each_dev+0x88/0xd4
[    2.115998]  driver_attach+0x2c/0x38
[    2.119534]  bus_add_driver+0x10c/0x200
[    2.123330]  driver_register+0x6c/0x104
[    2.127122]  __platform_driver_register+0x4c/0x58
[    2.131767]  msm_drm_register+0x6c/0x70
[    2.135560]  do_one_initcall+0x64/0x23c
[    2.139357]  do_initcall_level+0xac/0x15c
[    2.143321]  do_initcalls+0x5c/0x9c
[    2.146778]  do_basic_setup+0x2c/0x38
[    2.150401]  kernel_init_freeable+0xf8/0x15c
[    2.154622]  kernel_init+0x1c/0x11c
[    2.158079]  ret_from_fork+0x10/0x30
[    2.161615] ---[ end trace a2cc45a0f784b212 ]---

[    2.166272] Removing OPP: 300000000

Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../media/platform/qcom/venus/pm_helpers.c    | 28 +++++++++----------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 63095d70f8d82..710f9a2b132b0 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -147,14 +147,12 @@ static u32 load_per_type(struct venus_core *core, u32 session_type)
 	struct venus_inst *inst = NULL;
 	u32 mbs_per_sec = 0;
 
-	mutex_lock(&core->lock);
 	list_for_each_entry(inst, &core->instances, list) {
 		if (inst->session_type != session_type)
 			continue;
 
 		mbs_per_sec += load_per_instance(inst);
 	}
-	mutex_unlock(&core->lock);
 
 	return mbs_per_sec;
 }
@@ -203,14 +201,12 @@ static int load_scale_bw(struct venus_core *core)
 	struct venus_inst *inst = NULL;
 	u32 mbs_per_sec, avg, peak, total_avg = 0, total_peak = 0;
 
-	mutex_lock(&core->lock);
 	list_for_each_entry(inst, &core->instances, list) {
 		mbs_per_sec = load_per_instance(inst);
 		mbs_to_bw(inst, mbs_per_sec, &avg, &peak);
 		total_avg += avg;
 		total_peak += peak;
 	}
-	mutex_unlock(&core->lock);
 
 	/*
 	 * keep minimum bandwidth vote for "video-mem" path,
@@ -237,8 +233,9 @@ static int load_scale_v1(struct venus_inst *inst)
 	struct device *dev = core->dev;
 	u32 mbs_per_sec;
 	unsigned int i;
-	int ret;
+	int ret = 0;
 
+	mutex_lock(&core->lock);
 	mbs_per_sec = load_per_type(core, VIDC_SESSION_TYPE_ENC) +
 		      load_per_type(core, VIDC_SESSION_TYPE_DEC);
 
@@ -263,17 +260,19 @@ set_freq:
 	if (ret) {
 		dev_err(dev, "failed to set clock rate %lu (%d)\n",
 			freq, ret);
-		return ret;
+		goto exit;
 	}
 
 	ret = load_scale_bw(core);
 	if (ret) {
 		dev_err(dev, "failed to set bandwidth (%d)\n",
 			ret);
-		return ret;
+		goto exit;
 	}
 
-	return 0;
+exit:
+	mutex_unlock(&core->lock);
+	return ret;
 }
 
 static int core_get_v1(struct venus_core *core)
@@ -960,13 +959,13 @@ static int load_scale_v4(struct venus_inst *inst)
 	struct device *dev = core->dev;
 	unsigned long freq = 0, freq_core1 = 0, freq_core2 = 0;
 	unsigned long filled_len = 0;
-	int i, ret;
+	int i, ret = 0;
 
 	for (i = 0; i < inst->num_input_bufs; i++)
 		filled_len = max(filled_len, inst->payloads[i]);
 
 	if (inst->session_type == VIDC_SESSION_TYPE_DEC && !filled_len)
-		return 0;
+		return ret;
 
 	freq = calculate_inst_freq(inst, filled_len);
 	inst->clk_data.freq = freq;
@@ -982,7 +981,6 @@ static int load_scale_v4(struct venus_inst *inst)
 			freq_core2 += inst->clk_data.freq;
 		}
 	}
-	mutex_unlock(&core->lock);
 
 	freq = max(freq_core1, freq_core2);
 
@@ -1006,17 +1004,19 @@ set_freq:
 	if (ret) {
 		dev_err(dev, "failed to set clock rate %lu (%d)\n",
 			freq, ret);
-		return ret;
+		goto exit;
 	}
 
 	ret = load_scale_bw(core);
 	if (ret) {
 		dev_err(dev, "failed to set bandwidth (%d)\n",
 			ret);
-		return ret;
+		goto exit;
 	}
 
-	return 0;
+exit:
+	mutex_unlock(&core->lock);
+	return ret;
 }
 
 static const struct venus_pm_ops pm_ops_v4 = {
-- 
GitLab


From b029625063c16d468c35fa69f59e898f81741aa3 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 22 Nov 2021 18:05:30 +0100
Subject: [PATCH 3200/4878] ACPI / x86: Drop PWM2 device on Lenovo Yoga Book
 from always present table

[ Upstream commit d431dfb764b145369be820fcdfd50f2159b9bbc2 ]

It turns out that there is a WMI object which controls the PWM2 device
used for the keyboard backlight and that WMI object also provides some
other useful functionality.

The upcoming lenovo-yogabook-wmi driver will offer both backlight
control and the other functionality, so there no longer is a need
to have the lpss-pwm driver binding to PWM2 for backlight control;
and this is now actually undesirable because this will cause both
the WMI code and the lpss-pwm driver to poke at the same PWM
controller.

Drop the always-present quirk for the PWM2 ACPI-device, so that the
 lpss-pwm controller will no longer bind to it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/x86/utils.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index bdc1ba00aee9f..baaa44edc9441 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -54,10 +54,6 @@ static const struct always_present_id always_present_ids[] = {
 	ENTRY("80860F09", "1", X86_MATCH(ATOM_SILVERMONT), {}),
 	ENTRY("80862288", "1", X86_MATCH(ATOM_AIRMONT), {}),
 
-	/* Lenovo Yoga Book uses PWM2 for keyboard backlight control */
-	ENTRY("80862289", "2", X86_MATCH(ATOM_AIRMONT), {
-			DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
-		}),
 	/*
 	 * The INT0002 device is necessary to clear wakeup interrupt sources
 	 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
-- 
GitLab


From cda755506df4c73b23c2f37943350a435bf52f44 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 22 Nov 2021 18:05:31 +0100
Subject: [PATCH 3201/4878] ACPI: Change acpi_device_always_present() into
 acpi_device_override_status()

[ Upstream commit 1a68b346a2c9969c05e80a3b99a9ab160b5655c0 ]

Currently, acpi_bus_get_status() calls acpi_device_always_present() to
allow platform quirks to override the _STA return to report that a
device is present (status = ACPI_STA_DEFAULT) independent of the _STA
return.

In some cases it might also be useful to have the opposite functionality
and have a platform quirk which marks a device as not present (status = 0)
to work around ACPI table bugs.

Change acpi_device_always_present() into a more generic
acpi_device_override_status() function to allow this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/bus.c       |  4 +--
 drivers/acpi/x86/utils.c | 64 +++++++++++++++++++++++-----------------
 include/acpi/acpi_bus.h  |  5 ++--
 3 files changed, 42 insertions(+), 31 deletions(-)

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e317214aabec5..5e14288fcabe9 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -98,8 +98,8 @@ int acpi_bus_get_status(struct acpi_device *device)
 	acpi_status status;
 	unsigned long long sta;
 
-	if (acpi_device_always_present(device)) {
-		acpi_set_device_status(device, ACPI_STA_DEFAULT);
+	if (acpi_device_override_status(device, &sta)) {
+		acpi_set_device_status(device, sta);
 		return 0;
 	}
 
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index baaa44edc9441..c6b0782dcced5 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -22,54 +22,63 @@
  * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
  * driver bugs. We use DMI matching to match known cases of this.
  *
- * We work around this by always reporting ACPI_STA_DEFAULT for these
- * devices. Note this MUST only be done for devices where this is safe.
+ * Likewise sometimes some not-actually present devices are sometimes
+ * reported as present, which may cause issues.
  *
- * This forcing of devices to be present is limited to specific CPU (SoC)
- * models both to avoid potentially causing trouble on other models and
- * because some HIDs are re-used on different SoCs for completely
- * different devices.
+ * We work around this by using the below quirk list to override the status
+ * reported by the _STA method with a fixed value (ACPI_STA_DEFAULT or 0).
+ * Note this MUST only be done for devices where this is safe.
+ *
+ * This status overriding is limited to specific CPU (SoC) models both to
+ * avoid potentially causing trouble on other models and because some HIDs
+ * are re-used on different SoCs for completely different devices.
  */
-struct always_present_id {
+struct override_status_id {
 	struct acpi_device_id hid[2];
 	struct x86_cpu_id cpu_ids[2];
 	struct dmi_system_id dmi_ids[2]; /* Optional */
 	const char *uid;
+	unsigned long long status;
 };
 
-#define X86_MATCH(model)	X86_MATCH_INTEL_FAM6_MODEL(model, NULL)
-
-#define ENTRY(hid, uid, cpu_models, dmi...) {				\
+#define ENTRY(status, hid, uid, cpu_model, dmi...) {			\
 	{ { hid, }, {} },						\
-	{ cpu_models, {} },						\
+	{ X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} },		\
 	{ { .matches = dmi }, {} },					\
 	uid,								\
+	status,								\
 }
 
-static const struct always_present_id always_present_ids[] = {
+#define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
+	ENTRY(ACPI_STA_DEFAULT, hid, uid, cpu_model, dmi)
+
+#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
+	ENTRY(0, hid, uid, cpu_model, dmi)
+
+static const struct override_status_id override_status_ids[] = {
 	/*
 	 * Bay / Cherry Trail PWM directly poked by GPU driver in win10,
 	 * but Linux uses a separate PWM driver, harmless if not used.
 	 */
-	ENTRY("80860F09", "1", X86_MATCH(ATOM_SILVERMONT), {}),
-	ENTRY("80862288", "1", X86_MATCH(ATOM_AIRMONT), {}),
+	PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}),
+	PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}),
 
 	/*
 	 * The INT0002 device is necessary to clear wakeup interrupt sources
 	 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
 	 */
-	ENTRY("INT0002", "1", X86_MATCH(ATOM_AIRMONT), {}),
+	PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}),
 	/*
 	 * On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides
 	 * the touchscreen ACPI device until a certain time
 	 * after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed
 	 * *and* _STA has been called at least 3 times since.
 	 */
-	ENTRY("SYNA7500", "1", X86_MATCH(HASWELL_L), {
+	PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
 		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
 	      }),
-	ENTRY("SYNA7500", "1", X86_MATCH(HASWELL_L), {
+	PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
 		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"),
 	      }),
@@ -85,19 +94,19 @@ static const struct always_present_id always_present_ids[] = {
 	 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
 	 * node which we should not enable, thus we also check the BIOS date.
 	 */
-	ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), {
+	PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
 		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		DMI_MATCH(DMI_BIOS_DATE, "02/21/2017")
 	      }),
-	ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), {
+	PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
 		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
 	      }),
-	ENTRY("KIOX000A", "1", X86_MATCH(ATOM_AIRMONT), {
+	PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
 		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
@@ -105,26 +114,27 @@ static const struct always_present_id always_present_ids[] = {
 	      }),
 };
 
-bool acpi_device_always_present(struct acpi_device *adev)
+bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)
 {
 	bool ret = false;
 	unsigned int i;
 
-	for (i = 0; i < ARRAY_SIZE(always_present_ids); i++) {
-		if (acpi_match_device_ids(adev, always_present_ids[i].hid))
+	for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) {
+		if (acpi_match_device_ids(adev, override_status_ids[i].hid))
 			continue;
 
 		if (!adev->pnp.unique_id ||
-		    strcmp(adev->pnp.unique_id, always_present_ids[i].uid))
+		    strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
 			continue;
 
-		if (!x86_match_cpu(always_present_ids[i].cpu_ids))
+		if (!x86_match_cpu(override_status_ids[i].cpu_ids))
 			continue;
 
-		if (always_present_ids[i].dmi_ids[0].matches[0].slot &&
-		    !dmi_check_system(always_present_ids[i].dmi_ids))
+		if (override_status_ids[i].dmi_ids[0].matches[0].slot &&
+		    !dmi_check_system(override_status_ids[i].dmi_ids))
 			continue;
 
+		*status = override_status_ids[i].status;
 		ret = true;
 		break;
 	}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 6ad3b89a8a2e0..0f5366792d22e 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -605,9 +605,10 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
 
 #ifdef CONFIG_X86
-bool acpi_device_always_present(struct acpi_device *adev);
+bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status);
 #else
-static inline bool acpi_device_always_present(struct acpi_device *adev)
+static inline bool acpi_device_override_status(struct acpi_device *adev,
+					       unsigned long long *status)
 {
 	return false;
 }
-- 
GitLab


From b8b2e74a8751c79c39722bd9aba4ca8159381d98 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 22 Nov 2021 18:05:32 +0100
Subject: [PATCH 3202/4878] ACPI / x86: Allow specifying
 acpi_device_override_status() quirks by path

[ Upstream commit ba46e42e925b5d09b4e441f8de3db119cc7df58f ]

Not all ACPI-devices have a HID + UID, allow specifying quirks for
acpi_device_override_status() by path too.

Note this moves the path/HID+UID check to after the CPU + DMI checks
since the path lookup is somewhat costly.

This way this lookup is only done on devices where the other checks
match.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/x86/utils.c | 42 ++++++++++++++++++++++++++++++----------
 1 file changed, 32 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index c6b0782dcced5..91bbc4b6b8035 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -38,22 +38,30 @@ struct override_status_id {
 	struct x86_cpu_id cpu_ids[2];
 	struct dmi_system_id dmi_ids[2]; /* Optional */
 	const char *uid;
+	const char *path;
 	unsigned long long status;
 };
 
-#define ENTRY(status, hid, uid, cpu_model, dmi...) {			\
+#define ENTRY(status, hid, uid, path, cpu_model, dmi...) {		\
 	{ { hid, }, {} },						\
 	{ X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} },		\
 	{ { .matches = dmi }, {} },					\
 	uid,								\
+	path,								\
 	status,								\
 }
 
 #define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
-	ENTRY(ACPI_STA_DEFAULT, hid, uid, cpu_model, dmi)
+	ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi)
 
 #define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
-	ENTRY(0, hid, uid, cpu_model, dmi)
+	ENTRY(0, hid, uid, NULL, cpu_model, dmi)
+
+#define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
+	ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi)
+
+#define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
+	ENTRY(0, "", NULL, path, cpu_model, dmi)
 
 static const struct override_status_id override_status_ids[] = {
 	/*
@@ -120,13 +128,6 @@ bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *s
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) {
-		if (acpi_match_device_ids(adev, override_status_ids[i].hid))
-			continue;
-
-		if (!adev->pnp.unique_id ||
-		    strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
-			continue;
-
 		if (!x86_match_cpu(override_status_ids[i].cpu_ids))
 			continue;
 
@@ -134,6 +135,27 @@ bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *s
 		    !dmi_check_system(override_status_ids[i].dmi_ids))
 			continue;
 
+		if (override_status_ids[i].path) {
+			struct acpi_buffer path = { ACPI_ALLOCATE_BUFFER, NULL };
+			bool match;
+
+			if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))
+				continue;
+
+			match = strcmp((char *)path.pointer, override_status_ids[i].path) == 0;
+			kfree(path.pointer);
+
+			if (!match)
+				continue;
+		} else {
+			if (acpi_match_device_ids(adev, override_status_ids[i].hid))
+				continue;
+
+			if (!adev->pnp.unique_id ||
+			    strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
+				continue;
+		}
+
 		*status = override_status_ids[i].status;
 		ret = true;
 		break;
-- 
GitLab


From fcb45ac39f908c1246a014d9a693806ae9dfc3aa Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 22 Nov 2021 18:05:33 +0100
Subject: [PATCH 3203/4878] ACPI / x86: Add not-present quirk for the
 PCI0.SDHB.BRC1 device on the GPD win

[ Upstream commit 57d2dbf710d832841872fb15ebb79429cab90fae ]

The GPD win and its sibling the GPD pocket (99% the same electronics in a
different case) use a PCI wifi card. But the ACPI tables on both variants
contain a bug where the SDIO MMC controller for SDIO wifi cards is enabled
despite this. This SDIO MMC controller has a PCI0.SDHB.BRC1 child-device
which _PS3 method sets a GPIO causing the PCI wifi card to turn off.

At the moment there is a pretty ugly kludge in the sdhci-acpi.c code,
just to work around the bug in the DSDT of this single design. This can
be solved cleaner/simply with a quirk overriding the _STA return of the
broken PCI0.SDHB.BRC1 PCI0.SDHB.BRC1 child with a status value of 0,
so that its power_manageable flag gets cleared, avoiding this problem.

Note that even though it is not used, the _STA method for the MMC
controller is deliberately not overridden. If the status of the MMC
controller were forced to 0 it would never get suspended, which would
cause these mini-laptops to not reach S0i3 level when suspended.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/x86/utils.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index 91bbc4b6b8035..3f9a162be84e3 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -94,9 +94,10 @@ static const struct override_status_id override_status_ids[] = {
 	/*
 	 * The GPD win BIOS dated 20170221 has disabled the accelerometer, the
 	 * drivers sometimes cause crashes under Windows and this is how the
-	 * manufacturer has solved this :| Note that the the DMI data is less
-	 * generic then it seems, a board_vendor of "AMI Corporation" is quite
-	 * rare and a board_name of "Default String" also is rare.
+	 * manufacturer has solved this :|  The DMI match may not seem unique,
+	 * but it is. In the 67000+ DMI decode dumps from linux-hardware.org
+	 * only 116 have board_vendor set to "AMI Corporation" and of those 116
+	 * only the GPD win and pocket entries' board_name is "Default string".
 	 *
 	 * Unfortunately the GPD pocket also uses these strings and its BIOS
 	 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
@@ -120,6 +121,19 @@ static const struct override_status_id override_status_ids[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		DMI_MATCH(DMI_BIOS_DATE, "05/25/2017")
 	      }),
+
+	/*
+	 * The GPD win/pocket have a PCI wifi card, but its DSDT has the SDIO
+	 * mmc controller enabled and that has a child-device which _PS3
+	 * method sets a GPIO causing the PCI wifi card to turn off.
+	 * See above remark about uniqueness of the DMI match.
+	 */
+	NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", ATOM_AIRMONT, {
+		DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+		DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+		DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
+		DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+	      }),
 };
 
 bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)
-- 
GitLab


From d0aec428c07224b126a63ecd0734a9a8ebc9e9e7 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 26 Nov 2021 14:15:54 +0530
Subject: [PATCH 3204/4878] arm64: dts: ti: j7200-main: Fix 'dtbs_check'
 serdes_ln_ctrl node

[ Upstream commit 4d3984906397581dc0ccb6a02bf16b6ff82c9192 ]

Fix 'dtbs_check' in serdes_ln_ctrl (serdes-ln-ctrl@4080) node by
changing the node name to mux-controller@4080.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20211126084555.17797-2-kishon@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index 5832ad830ed14..1ab9f9604af6c 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -25,7 +25,7 @@
 		#size-cells = <1>;
 		ranges = <0x00 0x00 0x00100000 0x1c000>;
 
-		serdes_ln_ctrl: serdes-ln-ctrl@4080 {
+		serdes_ln_ctrl: mux-controller@4080 {
 			compatible = "mmio-mux";
 			#mux-control-cells = <1>;
 			mux-reg-masks = <0x4080 0x3>, <0x4084 0x3>, /* SERDES0 lane0/1 select */
-- 
GitLab


From 409d45bcd3812a2da1ea2e57a1e4f68501d11d64 Mon Sep 17 00:00:00 2001
From: Neal Liu <neal_liu@aspeedtech.com>
Date: Fri, 26 Nov 2021 18:00:21 +0800
Subject: [PATCH 3205/4878] usb: uhci: add aspeed ast2600 uhci support

[ Upstream commit 554abfe2eadec97d12c71d4a69da1518478f69eb ]

Enable ast2600 uhci quirks.

Signed-off-by: Neal Liu <neal_liu@aspeedtech.com>
Link: https://lore.kernel.org/r/20211126100021.2331024-1-neal_liu@aspeedtech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/uhci-platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 70dbd95c3f063..be9e9db7cad10 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -113,7 +113,8 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
 				num_ports);
 		}
 		if (of_device_is_compatible(np, "aspeed,ast2400-uhci") ||
-		    of_device_is_compatible(np, "aspeed,ast2500-uhci")) {
+		    of_device_is_compatible(np, "aspeed,ast2500-uhci") ||
+		    of_device_is_compatible(np, "aspeed,ast2600-uhci")) {
 			uhci->is_aspeed = 1;
 			dev_info(&pdev->dev,
 				 "Enabled Aspeed implementation workarounds\n");
-- 
GitLab


From 0946fdd9290ac05256d9884773335167cd20abf0 Mon Sep 17 00:00:00 2001
From: Xiongwei Song <sxwjean@gmail.com>
Date: Tue, 16 Nov 2021 21:10:33 +0800
Subject: [PATCH 3206/4878] floppy: Add max size check for user space request

[ Upstream commit 545a32498c536ee152331cd2e7d2416aa0f20e01 ]

We need to check the max request size that is from user space before
allocating pages. If the request size exceeds the limit, return -EINVAL.
This check can avoid the warning below from page allocator.

WARNING: CPU: 3 PID: 16525 at mm/page_alloc.c:5344 current_gfp_context include/linux/sched/mm.h:195 [inline]
WARNING: CPU: 3 PID: 16525 at mm/page_alloc.c:5344 __alloc_pages+0x45d/0x500 mm/page_alloc.c:5356
Modules linked in:
CPU: 3 PID: 16525 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:__alloc_pages+0x45d/0x500 mm/page_alloc.c:5344
Code: be c9 00 00 00 48 c7 c7 20 4a 97 89 c6 05 62 32 a7 0b 01 e8 74 9a 42 07 e9 6a ff ff ff 0f 0b e9 a0 fd ff ff 40 80 e5 3f eb 88 <0f> 0b e9 18 ff ff ff 4c 89 ef 44 89 e6 45 31 ed e8 1e 76 ff ff e9
RSP: 0018:ffffc90023b87850 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff92004770f0b RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000033 RDI: 0000000000010cc1
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff81bb4686 R11: 0000000000000001 R12: ffffffff902c1960
R13: 0000000000000033 R14: 0000000000000000 R15: ffff88804cf64a30
FS:  0000000000000000(0000) GS:ffff88802cd00000(0063) knlGS:00000000f44b4b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000002c921000 CR3: 000000004f507000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2191
 __get_free_pages+0x8/0x40 mm/page_alloc.c:5418
 raw_cmd_copyin drivers/block/floppy.c:3113 [inline]
 raw_cmd_ioctl drivers/block/floppy.c:3160 [inline]
 fd_locked_ioctl+0x12e5/0x2820 drivers/block/floppy.c:3528
 fd_ioctl drivers/block/floppy.c:3555 [inline]
 fd_compat_ioctl+0x891/0x1b60 drivers/block/floppy.c:3869
 compat_blkdev_ioctl+0x3b8/0x810 block/ioctl.c:662
 __do_compat_sys_ioctl+0x1c7/0x290 fs/ioctl.c:972
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Reported-by: syzbot+23a02c7df2cf2bc93fa2@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211116131033.27685-1-sxwjean@me.com
Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/floppy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index eb4f841902aee..aaee15058d181 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3169,6 +3169,8 @@ static void raw_cmd_free(struct floppy_raw_cmd **ptr)
 	}
 }
 
+#define MAX_LEN (1UL << MAX_ORDER << PAGE_SHIFT)
+
 static int raw_cmd_copyin(int cmd, void __user *param,
 				 struct floppy_raw_cmd **rcmd)
 {
@@ -3198,7 +3200,7 @@ loop:
 	ptr->resultcode = 0;
 
 	if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
-		if (ptr->length <= 0)
+		if (ptr->length <= 0 || ptr->length >= MAX_LEN)
 			return -EINVAL;
 		ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length);
 		fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);
-- 
GitLab


From e61aa46d0f27bd460080ccd244296d1944b9813e Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 2 Dec 2021 16:32:25 +0100
Subject: [PATCH 3207/4878] x86/mm: Flush global TLB when switching to
 trampoline page-table

[ Upstream commit 71d5049b053876afbde6c3273250b76935494ab2 ]

Move the switching code into a function so that it can be re-used and
add a global TLB flush. This makes sure that usage of memory which is
not mapped in the trampoline page-table is reliably caught.

Also move the clearing of CR4.PCIDE before the CR3 switch because the
cr4_clear_bits() function will access data not mapped into the
trampoline page-table.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211202153226.22946-4-joro@8bytes.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/realmode.h |  1 +
 arch/x86/kernel/reboot.c        | 12 ++----------
 arch/x86/realmode/init.c        | 26 ++++++++++++++++++++++++++
 3 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 5db5d083c8732..331474b150f16 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -89,6 +89,7 @@ static inline void set_real_mode_mem(phys_addr_t mem)
 }
 
 void reserve_real_mode(void);
+void load_trampoline_pgtable(void);
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 798a6f73f8946..df3514835b356 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -113,17 +113,9 @@ void __noreturn machine_real_restart(unsigned int type)
 	spin_unlock(&rtc_lock);
 
 	/*
-	 * Switch back to the initial page table.
+	 * Switch to the trampoline page table.
 	 */
-#ifdef CONFIG_X86_32
-	load_cr3(initial_page_table);
-#else
-	write_cr3(real_mode_header->trampoline_pgd);
-
-	/* Exiting long mode will fail if CR4.PCIDE is set. */
-	if (boot_cpu_has(X86_FEATURE_PCID))
-		cr4_clear_bits(X86_CR4_PCIDE);
-#endif
+	load_trampoline_pgtable();
 
 	/* Jump to the identity-mapped low memory code */
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index 3313bffbecd4d..1a702c6a226ec 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -17,6 +17,32 @@ u32 *trampoline_cr4_features;
 /* Hold the pgd entry used on booting additional CPUs */
 pgd_t trampoline_pgd_entry;
 
+void load_trampoline_pgtable(void)
+{
+#ifdef CONFIG_X86_32
+	load_cr3(initial_page_table);
+#else
+	/*
+	 * This function is called before exiting to real-mode and that will
+	 * fail with CR4.PCIDE still set.
+	 */
+	if (boot_cpu_has(X86_FEATURE_PCID))
+		cr4_clear_bits(X86_CR4_PCIDE);
+
+	write_cr3(real_mode_header->trampoline_pgd);
+#endif
+
+	/*
+	 * The CR3 write above will not flush global TLB entries.
+	 * Stale, global entries from previous page tables may still be
+	 * present.  Flush those stale entries.
+	 *
+	 * This ensures that memory accessed while running with
+	 * trampoline_pgd is *actually* mapped into trampoline_pgd.
+	 */
+	__flush_tlb_all();
+}
+
 void __init reserve_real_mode(void)
 {
 	phys_addr_t mem;
-- 
GitLab


From d0e3ab637de1e8940a8940432c9de11e0fcc7b0a Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Mon, 29 Nov 2021 03:10:46 +0200
Subject: [PATCH 3208/4878] drm: rcar-du: Fix CRTC timings when CMM is used

[ Upstream commit f0ce591dc9a97067c6e783a2eaccd22c5476144d ]

When the CMM is enabled, an offset of 25 pixels must be subtracted from
the HDS (horizontal display start) and HDE (horizontal display end)
registers. Fix the timings calculation, and take this into account in
the mode validation.

This fixes a visible horizontal offset in the image with VGA monitors.
HDMI monitors seem to be generally more tolerant to incorrect timings,
but may be affected too.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 1b9738e44909d..065604c5837de 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -215,6 +215,7 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
 	const struct drm_display_mode *mode = &rcrtc->crtc.state->adjusted_mode;
 	struct rcar_du_device *rcdu = rcrtc->dev;
 	unsigned long mode_clock = mode->clock * 1000;
+	unsigned int hdse_offset;
 	u32 dsmr;
 	u32 escr;
 
@@ -298,10 +299,15 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
 	     | DSMR_DIPM_DISP | DSMR_CSPM;
 	rcar_du_crtc_write(rcrtc, DSMR, dsmr);
 
+	hdse_offset = 19;
+	if (rcrtc->group->cmms_mask & BIT(rcrtc->index % 2))
+		hdse_offset += 25;
+
 	/* Display timings */
-	rcar_du_crtc_write(rcrtc, HDSR, mode->htotal - mode->hsync_start - 19);
+	rcar_du_crtc_write(rcrtc, HDSR, mode->htotal - mode->hsync_start -
+					hdse_offset);
 	rcar_du_crtc_write(rcrtc, HDER, mode->htotal - mode->hsync_start +
-					mode->hdisplay - 19);
+					mode->hdisplay - hdse_offset);
 	rcar_du_crtc_write(rcrtc, HSWR, mode->hsync_end -
 					mode->hsync_start - 1);
 	rcar_du_crtc_write(rcrtc, HCR,  mode->htotal - 1);
@@ -831,6 +837,7 @@ rcar_du_crtc_mode_valid(struct drm_crtc *crtc,
 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
 	struct rcar_du_device *rcdu = rcrtc->dev;
 	bool interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
+	unsigned int min_sync_porch;
 	unsigned int vbp;
 
 	if (interlaced && !rcar_du_has(rcdu, RCAR_DU_FEATURE_INTERLACED))
@@ -838,9 +845,14 @@ rcar_du_crtc_mode_valid(struct drm_crtc *crtc,
 
 	/*
 	 * The hardware requires a minimum combined horizontal sync and back
-	 * porch of 20 pixels and a minimum vertical back porch of 3 lines.
+	 * porch of 20 pixels (when CMM isn't used) or 45 pixels (when CMM is
+	 * used), and a minimum vertical back porch of 3 lines.
 	 */
-	if (mode->htotal - mode->hsync_start < 20)
+	min_sync_porch = 20;
+	if (rcrtc->group->cmms_mask & BIT(rcrtc->index % 2))
+		min_sync_porch += 25;
+
+	if (mode->htotal - mode->hsync_start < min_sync_porch)
 		return MODE_HBLANK_NARROW;
 
 	vbp = (mode->vtotal - mode->vsync_end) / (interlaced ? 2 : 1);
-- 
GitLab


From 74e60c1dce0664cfc8fcb8ed0f453745721dc247 Mon Sep 17 00:00:00 2001
From: James Hilliard <james.hilliard1@gmail.com>
Date: Sun, 14 Nov 2021 09:52:36 +0100
Subject: [PATCH 3209/4878] media: uvcvideo: Increase UVC_CTRL_CONTROL_TIMEOUT
 to 5 seconds.

[ Upstream commit c8ed7d2f614cd8b315981d116c7a2fb01829500d ]

Some uvc devices appear to require the maximum allowed USB timeout
for GET_CUR/SET_CUR requests.

So lets just bump the UVC control timeout to 5 seconds which is the
same as the usb ctrl get/set defaults:
USB_CTRL_GET_TIMEOUT 5000
USB_CTRL_SET_TIMEOUT 5000

It fixes the following runtime warnings:
   Failed to query (GET_CUR) UVC control 11 on unit 2: -110 (exp. 1).
   Failed to query (SET_CUR) UVC control 3 on unit 2: -110 (exp. 2).

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/uvc/uvcvideo.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index a3dfacf069c44..c884020b28784 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -183,7 +183,7 @@
 /* Maximum status buffer size in bytes of interrupt URB. */
 #define UVC_MAX_STATUS_SIZE	16
 
-#define UVC_CTRL_CONTROL_TIMEOUT	500
+#define UVC_CTRL_CONTROL_TIMEOUT	5000
 #define UVC_CTRL_STREAMING_TIMEOUT	5000
 
 /* Maximum allowed number of control mappings per device */
-- 
GitLab


From 526b6c9b4521910d7af797a6badaceabcff8d21b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20S=C3=B6derlund?=
 <niklas.soderlund+renesas@ragnatech.se>
Date: Fri, 26 Nov 2021 00:02:57 +0100
Subject: [PATCH 3210/4878] media: rcar-vin: Update format alignment
 constraints
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit da6911f330d40cfe115a37249e47643eff555e82 ]

This change fixes two issues with the size constraints for buffers.

- There is no width alignment constraint for RGB formats. Prior to this
  change they were treated as YUV and as a result were more restricted
  than needed. Add a new check to differentiate between the two.

- The minimum width and height supported is 5x2, not 2x4, this is an
  artifact from the driver's soc-camera days. Fix this incorrect
  assumption.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/rcar-vin/rcar-v4l2.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 3e7a3ae2a6b97..0bbe6f9f92062 100644
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -175,20 +175,27 @@ static void rvin_format_align(struct rvin_dev *vin, struct v4l2_pix_format *pix)
 		break;
 	}
 
-	/* HW limit width to a multiple of 32 (2^5) for NV12/16 else 2 (2^1) */
+	/* Hardware limits width alignment based on format. */
 	switch (pix->pixelformat) {
+	/* Multiple of 32 (2^5) for NV12/16. */
 	case V4L2_PIX_FMT_NV12:
 	case V4L2_PIX_FMT_NV16:
 		walign = 5;
 		break;
-	default:
+	/* Multiple of 2 (2^1) for YUV. */
+	case V4L2_PIX_FMT_YUYV:
+	case V4L2_PIX_FMT_UYVY:
 		walign = 1;
 		break;
+	/* No multiple for RGB. */
+	default:
+		walign = 0;
+		break;
 	}
 
 	/* Limit to VIN capabilities */
-	v4l_bound_align_image(&pix->width, 2, vin->info->max_width, walign,
-			      &pix->height, 4, vin->info->max_height, 2, 0);
+	v4l_bound_align_image(&pix->width, 5, vin->info->max_width, walign,
+			      &pix->height, 2, vin->info->max_height, 0, 0);
 
 	pix->bytesperline = rvin_format_bytesperline(vin, pix);
 	pix->sizeimage = rvin_format_sizeimage(pix);
-- 
GitLab


From c33f0f22bfea375bf96d0b43a3242fa8a31f10c6 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Tue, 30 Nov 2021 17:25:49 +0100
Subject: [PATCH 3211/4878] media: saa7146: hexium_orion: Fix a NULL pointer
 dereference in hexium_attach()

[ Upstream commit 348df8035301dd212e3cc2860efe4c86cb0d3303 ]

In hexium_attach(dev, info), saa7146_vv_init() is called to allocate
a new memory for dev->vv_data. In hexium_detach(), saa7146_vv_release()
will be called and there is a dereference of dev->vv_data in
saa7146_vv_release(), which could lead to a NULL pointer dereference
on failure of saa7146_vv_init() according to the following logic.

Both hexium_attach() and hexium_detach() are callback functions of
the variable 'extension', so there exists a possible call chain directly
from hexium_attach() to hexium_detach():

hexium_attach(dev, info) -- fail to alloc memory to dev->vv_data
	|		    		in saa7146_vv_init().
	|
	|
hexium_detach() -- a dereference of dev->vv_data in saa7146_vv_release()

Fix this bug by adding a check of saa7146_vv_init().

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_VIDEO_HEXIUM_ORION=m show no new warnings,
and our static analyzer no longer warns about this code.

Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/saa7146/hexium_orion.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/saa7146/hexium_orion.c b/drivers/media/pci/saa7146/hexium_orion.c
index 39d14c179d229..2eb4bee16b71f 100644
--- a/drivers/media/pci/saa7146/hexium_orion.c
+++ b/drivers/media/pci/saa7146/hexium_orion.c
@@ -355,10 +355,16 @@ static struct saa7146_ext_vv vv_data;
 static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info)
 {
 	struct hexium *hexium = (struct hexium *) dev->ext_priv;
+	int ret;
 
 	DEB_EE("\n");
 
-	saa7146_vv_init(dev, &vv_data);
+	ret = saa7146_vv_init(dev, &vv_data);
+	if (ret) {
+		pr_err("Error in saa7146_vv_init()\n");
+		return ret;
+	}
+
 	vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
 	vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
 	vv_data.vid_ops.vidioc_s_input = vidioc_s_input;
-- 
GitLab


From 830e5d1b4344c2575020ee4bdf63fb48e2b56ce3 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Mon, 6 Dec 2021 15:34:19 +0100
Subject: [PATCH 3212/4878] media: m920x: don't use stack on USB reads

[ Upstream commit a2ab06d7c4d6bfd0b545a768247a70463e977e27 ]

Using stack-allocated pointers for USB message data don't work.
This driver is almost OK with that, except for the I2C read
logic.

Fix it by using a temporary read buffer, just like on all other
calls to m920x_read().

Link: https://lore.kernel.org/all/ccc99e48-de4f-045e-0fe4-61e3118e3f74@mida.se/
Reported-by: rkardell@mida.se
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/dvb-usb/m920x.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb/m920x.c b/drivers/media/usb/dvb-usb/m920x.c
index 4bb5b82599a79..691e05833db19 100644
--- a/drivers/media/usb/dvb-usb/m920x.c
+++ b/drivers/media/usb/dvb-usb/m920x.c
@@ -274,6 +274,13 @@ static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
 			/* Should check for ack here, if we knew how. */
 		}
 		if (msg[i].flags & I2C_M_RD) {
+			char *read = kmalloc(1, GFP_KERNEL);
+			if (!read) {
+				ret = -ENOMEM;
+				kfree(read);
+				goto unlock;
+			}
+
 			for (j = 0; j < msg[i].len; j++) {
 				/* Last byte of transaction?
 				 * Send STOP, otherwise send ACK. */
@@ -281,9 +288,12 @@ static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int nu
 
 				if ((ret = m920x_read(d->udev, M9206_I2C, 0x0,
 						      0x20 | stop,
-						      &msg[i].buf[j], 1)) != 0)
+						      read, 1)) != 0)
 					goto unlock;
+				msg[i].buf[j] = read[0];
 			}
+
+			kfree(read);
 		} else {
 			for (j = 0; j < msg[i].len; j++) {
 				/* Last byte of transaction? Then send STOP. */
-- 
GitLab


From c1976a42480708052739ee56bd8384df0f86c846 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Sun, 14 Nov 2021 16:07:11 +0200
Subject: [PATCH 3213/4878] thunderbolt: Runtime PM activate both ends of the
 device link

[ Upstream commit f3380cac0c0b3a6f49ab161e2a057c363962f48d ]

If protocol tunnels are already up when the driver is loaded, for
instance if the boot firmware implements connection manager of its own,
runtime PM reference count of the consumer devices behind the tunnel
might have been increased already before the device link is created but
the supplier device runtime PM reference count is not. This leads to a
situation where the supplier (the Thunderbolt driver) can runtime
suspend even if it should not because the corresponding protocol tunnel
needs to be up causing the devices to be removed from the corresponding
native bus.

Prevent this from happening by making both sides of the link runtime PM
active briefly. The pm_runtime_put() for the consumer (PCIe
root/downstream port, xHCI) then allows it to runtime suspend again but
keeps the supplier runtime resumed the whole time it is runtime active.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thunderbolt/acpi.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/thunderbolt/acpi.c b/drivers/thunderbolt/acpi.c
index b5442f979b4d0..6355fdf7d71a3 100644
--- a/drivers/thunderbolt/acpi.c
+++ b/drivers/thunderbolt/acpi.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/pm_runtime.h>
 
 #include "tb.h"
 
@@ -74,8 +75,18 @@ static acpi_status tb_acpi_add_link(acpi_handle handle, u32 level, void *data,
 		 pci_pcie_type(pdev) == PCI_EXP_TYPE_DOWNSTREAM))) {
 		const struct device_link *link;
 
+		/*
+		 * Make them both active first to make sure the NHI does
+		 * not runtime suspend before the consumer. The
+		 * pm_runtime_put() below then allows the consumer to
+		 * runtime suspend again (which then allows NHI runtime
+		 * suspend too now that the device link is established).
+		 */
+		pm_runtime_get_sync(&pdev->dev);
+
 		link = device_link_add(&pdev->dev, &nhi->pdev->dev,
 				       DL_FLAG_AUTOREMOVE_SUPPLIER |
+				       DL_FLAG_RPM_ACTIVE |
 				       DL_FLAG_PM_RUNTIME);
 		if (link) {
 			dev_dbg(&nhi->pdev->dev, "created link from %s\n",
@@ -84,6 +95,8 @@ static acpi_status tb_acpi_add_link(acpi_handle handle, u32 level, void *data,
 			dev_warn(&nhi->pdev->dev, "device link creation from %s failed\n",
 				 dev_name(&pdev->dev));
 		}
+
+		pm_runtime_put(&pdev->dev);
 	}
 
 out_put:
-- 
GitLab


From ec01e0fe21848b094f758c48a673e659681135f3 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Sat, 4 Dec 2021 08:35:45 +0200
Subject: [PATCH 3214/4878] iwlwifi: mvm: synchronize with FW after multicast
 commands

[ Upstream commit db66abeea3aefed481391ecc564fb7b7fb31d742 ]

If userspace installs a lot of multicast groups very quickly, then
we may run out of command queue space as we send the updates in an
asynchronous fashion (due to locking concerns), and the CPU can
create them faster than the firmware can process them. This is true
even when mac80211 has a work struct that gets scheduled.

Fix this by synchronizing with the firmware after sending all those
commands - outside of the iteration we can send a synchronous echo
command that just has the effect of the CPU waiting for the prior
asynchronous commands to finish. This also will cause fewer of the
commands to be sent to the firmware overall, because the work will
only run once when rescheduled multiple times while it's running.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=213649
Suggested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reported-by: Maximilian Ernestus <maximilian@ernestus.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204083238.51aea5b79ea4.I88a44798efda16e9fe480fb3e94224931d311b29@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 81cc85a97eb20..922a7ea0cd24e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1739,6 +1739,7 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 	struct iwl_mvm_mc_iter_data iter_data = {
 		.mvm = mvm,
 	};
+	int ret;
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -1748,6 +1749,22 @@ static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 	ieee80211_iterate_active_interfaces_atomic(
 		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 		iwl_mvm_mc_iface_iterator, &iter_data);
+
+	/*
+	 * Send a (synchronous) ech command so that we wait for the
+	 * multiple asynchronous MCAST_FILTER_CMD commands sent by
+	 * the interface iterator. Otherwise, we might get here over
+	 * and over again (by userspace just sending a lot of these)
+	 * and the CPU can send them faster than the firmware can
+	 * process them.
+	 * Note that the CPU is still faster - but with this we'll
+	 * actually send fewer commands overall because the CPU will
+	 * not schedule the work in mac80211 as frequently if it's
+	 * still running when rescheduled (possibly multiple times).
+	 */
+	ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
+	if (ret)
+		IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
 }
 
 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
-- 
GitLab


From 93a108d466f87056d85780b9e2a9a7c457c6ffe3 Mon Sep 17 00:00:00 2001
From: Shaul Triebitz <shaul.triebitz@intel.com>
Date: Sat, 4 Dec 2021 13:10:47 +0200
Subject: [PATCH 3215/4878] iwlwifi: mvm: avoid clearing a just saved session
 protection id

[ Upstream commit 8e967c137df3b236d2075f9538cb888129425d1a ]

When scheduling a session protection the id is saved but
then it may be cleared when calling iwl_mvm_te_clear_data
(if a previous session protection is currently active).
Fix it by saving the id after calling iwl_mvm_te_clear_data.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204130722.b0743a588d14.I098fef6677d0dab3ef1b6183ed206a10bab01eb2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/time-event.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
index a633ad5f8ca4e..3f081cdea09ca 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/time-event.c
@@ -1166,15 +1166,10 @@ void iwl_mvm_schedule_session_protection(struct iwl_mvm *mvm,
 			cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 							mvmvif->color)),
 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
+		.conf_id = cpu_to_le32(SESSION_PROTECT_CONF_ASSOC),
 		.duration_tu = cpu_to_le32(MSEC_TO_TU(duration)),
 	};
 
-	/* The time_event_data.id field is reused to save session
-	 * protection's configuration.
-	 */
-	mvmvif->time_event_data.id = SESSION_PROTECT_CONF_ASSOC;
-	cmd.conf_id = cpu_to_le32(mvmvif->time_event_data.id);
-
 	lockdep_assert_held(&mvm->mutex);
 
 	spin_lock_bh(&mvm->time_event_lock);
@@ -1188,6 +1183,11 @@ void iwl_mvm_schedule_session_protection(struct iwl_mvm *mvm,
 	}
 
 	iwl_mvm_te_clear_data(mvm, te_data);
+	/*
+	 * The time_event_data.id field is reused to save session
+	 * protection's configuration.
+	 */
+	te_data->id = le32_to_cpu(cmd.conf_id);
 	te_data->duration = le32_to_cpu(cmd.duration_tu);
 	spin_unlock_bh(&mvm->time_event_lock);
 
-- 
GitLab


From fcba0bce3357114c583b959d4eccf97654569612 Mon Sep 17 00:00:00 2001
From: Wen Gong <quic_wgong@quicinc.com>
Date: Tue, 7 Dec 2021 17:23:36 +0200
Subject: [PATCH 3216/4878] ath11k: avoid deadlock by change
 ieee80211_queue_work for regd_update_work

[ Upstream commit ed05c7cf1286d7e31e7623bce55ff135723591bf ]

When enable debug config, it print below warning while shut down wlan
interface shuh as run "ifconfig wlan0 down".

The reason is because ar->regd_update_work is ran once, and it is will
call wiphy_lock(ar->hw->wiphy) in function ath11k_regd_update() which
is running in workqueue of ieee80211_local queued by ieee80211_queue_work().
Another thread from "ifconfig wlan0 down" will also accuqire the lock
by wiphy_lock(sdata->local->hw.wiphy) in function ieee80211_stop(), and
then it call ieee80211_stop_device() to flush_workqueue(local->workqueue),
this will wait the workqueue of ieee80211_local finished. Then deadlock
will happen easily if the two thread run meanwhile.

Below warning disappeared after this change.

[  914.088798] ath11k_pci 0000:05:00.0: mac remove interface (vdev 0)
[  914.088806] ath11k_pci 0000:05:00.0: mac stop 11d scan
[  914.088810] ath11k_pci 0000:05:00.0: mac stop 11d vdev id 0
[  914.088827] ath11k_pci 0000:05:00.0: htc ep 2 consumed 1 credits (total 0)
[  914.088841] ath11k_pci 0000:05:00.0: send 11d scan stop vdev id 0
[  914.088849] ath11k_pci 0000:05:00.0: htc insufficient credits ep 2 required 1 available 0
[  914.088856] ath11k_pci 0000:05:00.0: htc insufficient credits ep 2 required 1 available 0
[  914.096434] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 16
[  914.096442] ath11k_pci 0000:05:00.0: htc ep 2 got 1 credits (total 1)
[  914.096481] ath11k_pci 0000:05:00.0: htc ep 2 consumed 1 credits (total 0)
[  914.096491] ath11k_pci 0000:05:00.0: WMI vdev delete id 0
[  914.111598] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 16
[  914.111628] ath11k_pci 0000:05:00.0: htc ep 2 got 1 credits (total 1)
[  914.114659] ath11k_pci 0000:05:00.0: rx ce pipe 2 len 20
[  914.114742] ath11k_pci 0000:05:00.0: htc rx completion ep 2 skb         pK-error
[  914.115977] ath11k_pci 0000:05:00.0: vdev delete resp for vdev id 0
[  914.116685] ath11k_pci 0000:05:00.0: vdev 00:03:7f:29:61:11 deleted, vdev_id 0

[  914.117583] ======================================================
[  914.117592] WARNING: possible circular locking dependency detected
[  914.117600] 5.16.0-rc1-wt-ath+ #1 Tainted: G           OE
[  914.117611] ------------------------------------------------------
[  914.117618] ifconfig/2805 is trying to acquire lock:
[  914.117628] ffff9c00a62bb548 ((wq_completion)phy0){+.+.}-{0:0}, at: flush_workqueue+0x87/0x470
[  914.117674]
               but task is already holding lock:
[  914.117682] ffff9c00baea07d0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_stop+0x38/0x180 [mac80211]
[  914.117872]
               which lock already depends on the new lock.

[  914.117880]
               the existing dependency chain (in reverse order) is:
[  914.117888]
               -> #3 (&rdev->wiphy.mtx){+.+.}-{4:4}:
[  914.117910]        __mutex_lock+0xa0/0x9c0
[  914.117930]        mutex_lock_nested+0x1b/0x20
[  914.117944]        reg_process_self_managed_hints+0x3a/0xb0 [cfg80211]
[  914.118093]        wiphy_regulatory_register+0x47/0x80 [cfg80211]
[  914.118229]        wiphy_register+0x84f/0x9c0 [cfg80211]
[  914.118353]        ieee80211_register_hw+0x6b1/0xd90 [mac80211]
[  914.118486]        ath11k_mac_register+0x6af/0xb60 [ath11k]
[  914.118550]        ath11k_core_qmi_firmware_ready+0x383/0x4a0 [ath11k]
[  914.118598]        ath11k_qmi_driver_event_work+0x347/0x4a0 [ath11k]
[  914.118656]        process_one_work+0x228/0x670
[  914.118669]        worker_thread+0x4d/0x440
[  914.118680]        kthread+0x16d/0x1b0
[  914.118697]        ret_from_fork+0x22/0x30
[  914.118714]
               -> #2 (rtnl_mutex){+.+.}-{4:4}:
[  914.118736]        __mutex_lock+0xa0/0x9c0
[  914.118751]        mutex_lock_nested+0x1b/0x20
[  914.118767]        rtnl_lock+0x17/0x20
[  914.118783]        ath11k_regd_update+0x15a/0x260 [ath11k]
[  914.118841]        ath11k_regd_update_work+0x15/0x20 [ath11k]
[  914.118897]        process_one_work+0x228/0x670
[  914.118909]        worker_thread+0x4d/0x440
[  914.118920]        kthread+0x16d/0x1b0
[  914.118934]        ret_from_fork+0x22/0x30
[  914.118948]
               -> #1 ((work_completion)(&ar->regd_update_work)){+.+.}-{0:0}:
[  914.118972]        process_one_work+0x1fa/0x670
[  914.118984]        worker_thread+0x4d/0x440
[  914.118996]        kthread+0x16d/0x1b0
[  914.119010]        ret_from_fork+0x22/0x30
[  914.119023]
               -> #0 ((wq_completion)phy0){+.+.}-{0:0}:
[  914.119045]        __lock_acquire+0x146d/0x1cf0
[  914.119057]        lock_acquire+0x19b/0x360
[  914.119067]        flush_workqueue+0xae/0x470
[  914.119084]        ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.119260]        ieee80211_do_stop+0x5d7/0x830 [mac80211]
[  914.119409]        ieee80211_stop+0x45/0x180 [mac80211]
[  914.119557]        __dev_close_many+0xb3/0x120
[  914.119573]        __dev_change_flags+0xc3/0x1d0
[  914.119590]        dev_change_flags+0x29/0x70
[  914.119605]        devinet_ioctl+0x653/0x810
[  914.119620]        inet_ioctl+0x193/0x1e0
[  914.119631]        sock_do_ioctl+0x4d/0xf0
[  914.119649]        sock_ioctl+0x262/0x340
[  914.119665]        __x64_sys_ioctl+0x96/0xd0
[  914.119678]        do_syscall_64+0x3d/0xd0
[  914.119694]        entry_SYSCALL_64_after_hwframe+0x44/0xae
[  914.119709]
               other info that might help us debug this:

[  914.119717] Chain exists of:
                 (wq_completion)phy0 --> rtnl_mutex --> &rdev->wiphy.mtx

[  914.119745]  Possible unsafe locking scenario:

[  914.119752]        CPU0                    CPU1
[  914.119758]        ----                    ----
[  914.119765]   lock(&rdev->wiphy.mtx);
[  914.119778]                                lock(rtnl_mutex);
[  914.119792]                                lock(&rdev->wiphy.mtx);
[  914.119807]   lock((wq_completion)phy0);
[  914.119819]
                *** DEADLOCK ***

[  914.119827] 2 locks held by ifconfig/2805:
[  914.119837]  #0: ffffffffba3dc010 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x17/0x20
[  914.119872]  #1: ffff9c00baea07d0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_stop+0x38/0x180 [mac80211]
[  914.120039]
               stack backtrace:
[  914.120048] CPU: 0 PID: 2805 Comm: ifconfig Tainted: G           OE     5.16.0-rc1-wt-ath+ #1
[  914.120064] Hardware name: LENOVO 418065C/418065C, BIOS 83ET63WW (1.33 ) 07/29/2011
[  914.120074] Call Trace:
[  914.120084]  <TASK>
[  914.120094]  dump_stack_lvl+0x73/0xa4
[  914.120119]  dump_stack+0x10/0x12
[  914.120135]  print_circular_bug.isra.44+0x221/0x2e0
[  914.120165]  check_noncircular+0x106/0x150
[  914.120203]  __lock_acquire+0x146d/0x1cf0
[  914.120215]  ? __lock_acquire+0x146d/0x1cf0
[  914.120245]  lock_acquire+0x19b/0x360
[  914.120259]  ? flush_workqueue+0x87/0x470
[  914.120286]  ? lockdep_init_map_type+0x6b/0x250
[  914.120310]  flush_workqueue+0xae/0x470
[  914.120327]  ? flush_workqueue+0x87/0x470
[  914.120344]  ? lockdep_hardirqs_on+0xd7/0x150
[  914.120391]  ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.120565]  ? ieee80211_stop_device+0x3b/0x50 [mac80211]
[  914.120736]  ieee80211_do_stop+0x5d7/0x830 [mac80211]
[  914.120906]  ieee80211_stop+0x45/0x180 [mac80211]
[  914.121060]  __dev_close_many+0xb3/0x120
[  914.121081]  __dev_change_flags+0xc3/0x1d0
[  914.121109]  dev_change_flags+0x29/0x70
[  914.121131]  devinet_ioctl+0x653/0x810
[  914.121149]  ? __might_fault+0x77/0x80
[  914.121179]  inet_ioctl+0x193/0x1e0
[  914.121194]  ? inet_ioctl+0x193/0x1e0
[  914.121218]  ? __might_fault+0x77/0x80
[  914.121238]  ? _copy_to_user+0x68/0x80
[  914.121266]  sock_do_ioctl+0x4d/0xf0
[  914.121283]  ? inet_stream_connect+0x60/0x60
[  914.121297]  ? sock_do_ioctl+0x4d/0xf0
[  914.121329]  sock_ioctl+0x262/0x340
[  914.121347]  ? sock_ioctl+0x262/0x340
[  914.121362]  ? exit_to_user_mode_prepare+0x13b/0x280
[  914.121388]  ? syscall_enter_from_user_mode+0x20/0x50
[  914.121416]  __x64_sys_ioctl+0x96/0xd0
[  914.121430]  ? br_ioctl_call+0x90/0x90
[  914.121445]  ? __x64_sys_ioctl+0x96/0xd0
[  914.121465]  do_syscall_64+0x3d/0xd0
[  914.121482]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  914.121497] RIP: 0033:0x7f0ed051737b
[  914.121513] Code: 0f 1e fa 48 8b 05 15 3b 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e5 3a 0d 00 f7 d8 64 89 01 48
[  914.121527] RSP: 002b:00007fff7be38b98 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[  914.121544] RAX: ffffffffffffffda RBX: 00007fff7be38ba0 RCX: 00007f0ed051737b
[  914.121555] RDX: 00007fff7be38ba0 RSI: 0000000000008914 RDI: 0000000000000004
[  914.121566] RBP: 00007fff7be38c60 R08: 000000000000000a R09: 0000000000000001
[  914.121576] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000fffffffe
[  914.121586] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000
[  914.121620]  </TASK>

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1

Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211201071745.17746-2-quic_wgong@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index acf1641ce88fd..53846dc9a5c5a 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5422,7 +5422,7 @@ static int ath11k_reg_chan_list_event(struct ath11k_base *ab, struct sk_buff *sk
 		ar = ab->pdevs[pdev_idx].ar;
 		kfree(ab->new_regd[pdev_idx]);
 		ab->new_regd[pdev_idx] = regd;
-		ieee80211_queue_work(ar->hw, &ar->regd_update_work);
+		queue_work(ab->workqueue, &ar->regd_update_work);
 	} else {
 		/* This regd would be applied during mac registration and is
 		 * held constant throughout for regd intersection purpose
-- 
GitLab


From 58b4c1ce8328b61b2675c2a966f7e8f5f4748289 Mon Sep 17 00:00:00 2001
From: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Date: Wed, 5 May 2021 15:58:06 +0700
Subject: [PATCH 3217/4878] ath10k: Fix tx hanging

[ Upstream commit e8a91863eba3966a447d2daa1526082d52b5db2a ]

While running stress tests in roaming scenarios (switching ap's every 5
seconds, we discovered a issue which leads to tx hangings of exactly 5
seconds while or after scanning for new accesspoints. We found out that
this hanging is triggered by ath10k_mac_wait_tx_complete since the
empty_tx_wq was not wake when the num_tx_pending counter reaches zero.
To fix this, we simply move the wake_up call to htt_tx_dec_pending,
since this call was missed on several locations within the ath10k code.

Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20210505085806.11474-1-s.gottschall@dd-wrt.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/htt_tx.c | 3 +++
 drivers/net/wireless/ath/ath10k/txrx.c   | 2 --
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 1fc0a312ab587..5f67da47036cf 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -147,6 +147,9 @@ void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
 	htt->num_pending_tx--;
 	if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
 		ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
+
+	if (htt->num_pending_tx == 0)
+		wake_up(&htt->empty_tx_wq);
 }
 
 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index aefe1f7f906c0..f51f1cf2c6a40 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -82,8 +82,6 @@ int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 	flags = skb_cb->flags;
 	ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
 	ath10k_htt_tx_dec_pending(htt);
-	if (htt->num_pending_tx == 0)
-		wake_up(&htt->empty_tx_wq);
 	spin_unlock_bh(&htt->tx_lock);
 
 	rcu_read_lock();
-- 
GitLab


From 443133330a5d4a3fd429179d460cc297724fefe8 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <atenart@kernel.org>
Date: Tue, 7 Dec 2021 15:57:24 +0100
Subject: [PATCH 3218/4878] net-sysfs: update the queue counts in the
 unregistration path

[ Upstream commit d7dac083414eb5bb99a6d2ed53dc2c1b405224e5 ]

When updating Rx and Tx queue kobjects, the queue count should always be
updated to match the queue kobjects count. This was not done in the net
device unregistration path, fix it. Tracking all queue count updates
will allow in a following up patch to detect illegal updates.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/net-sysfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index af59123601055..99303897b7bb7 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1804,6 +1804,9 @@ static void remove_queue_kobjects(struct net_device *dev)
 
 	net_rx_queue_update_kobjects(dev, real_rx, 0);
 	netdev_queue_update_kobjects(dev, real_tx, 0);
+
+	dev->real_num_rx_queues = 0;
+	dev->real_num_tx_queues = 0;
 #ifdef CONFIG_SYSFS
 	kset_unregister(dev->queues_kset);
 #endif
-- 
GitLab


From 7e09f9d15e430fd4d3189fc9b243abc5fe42e215 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Wed, 8 Dec 2021 11:36:30 +0000
Subject: [PATCH 3219/4878] net: phy: prefer 1000baseT over 1000baseKX

[ Upstream commit f20f94f7f52c4685c81754f489ffcc72186e8bdb ]

The PHY settings table is supposed to be sorted by descending match
priority - in other words, earlier entries are preferred over later
entries.

The order of 1000baseKX/Full and 1000baseT/Full is such that we
prefer 1000baseKX/Full over 1000baseT/Full, but 1000baseKX/Full is
a lot rarer than 1000baseT/Full, and thus is much less likely to
be preferred.

This causes phylink problems - it means a fixed link specifying a
speed of 1G and full duplex gets an ethtool linkmode of 1000baseKX/Full
rather than 1000baseT/Full as would be expected - and since we offer
userspace a software emulation of a conventional copper PHY, we want
to offer copper modes in preference to anything else. However, we do
still want to allow the rarer modes as well.

Hence, let's reorder these two modes to prefer copper.

Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/E1muvFO-00F6jY-1K@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phy-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c
index 8d333d3084ed3..cccb83dae673b 100644
--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
@@ -161,11 +161,11 @@ static const struct phy_setting settings[] = {
 	PHY_SETTING(   2500, FULL,   2500baseT_Full		),
 	PHY_SETTING(   2500, FULL,   2500baseX_Full		),
 	/* 1G */
-	PHY_SETTING(   1000, FULL,   1000baseKX_Full		),
 	PHY_SETTING(   1000, FULL,   1000baseT_Full		),
 	PHY_SETTING(   1000, HALF,   1000baseT_Half		),
 	PHY_SETTING(   1000, FULL,   1000baseT1_Full		),
 	PHY_SETTING(   1000, FULL,   1000baseX_Full		),
+	PHY_SETTING(   1000, FULL,   1000baseKX_Full		),
 	/* 100M */
 	PHY_SETTING(    100, FULL,    100baseT_Full		),
 	PHY_SETTING(    100, FULL,    100baseT1_Full		),
-- 
GitLab


From 07ecabf15ad3bfcaaa7e3ee6d660cfce8018dc2a Mon Sep 17 00:00:00 2001
From: Iwona Winiarska <iwona.winiarska@intel.com>
Date: Sat, 4 Dec 2021 18:10:26 +0100
Subject: [PATCH 3220/4878] gpio: aspeed: Convert aspeed_gpio.lock to
 raw_spinlock

[ Upstream commit 61a7904b6ace99b1bde0d0e867fa3097f5c8cee2 ]

The gpio-aspeed driver implements an irq_chip which need to be invoked
from hardirq context. Since spin_lock() can sleep with PREEMPT_RT, it is
no longer legal to invoke it while interrupts are disabled.
This also causes lockdep to complain about:
[    0.649797] [ BUG: Invalid wait context ]
because aspeed_gpio.lock (spin_lock_t) is taken under irq_desc.lock
(raw_spinlock_t).
Let's use of raw_spinlock_t instead of spinlock_t.

Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-aspeed.c | 52 +++++++++++++++++++-------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index b966f5e28ebff..e0d5d80ec8e0f 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -53,7 +53,7 @@ struct aspeed_gpio_config {
 struct aspeed_gpio {
 	struct gpio_chip chip;
 	struct irq_chip irqc;
-	spinlock_t lock;
+	raw_spinlock_t lock;
 	void __iomem *base;
 	int irq;
 	const struct aspeed_gpio_config *config;
@@ -413,14 +413,14 @@ static void aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
 	unsigned long flags;
 	bool copro;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	__aspeed_gpio_set(gc, offset, val);
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static int aspeed_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
@@ -435,7 +435,7 @@ static int aspeed_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
 	if (!have_input(gpio, offset))
 		return -ENOTSUPP;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	reg = ioread32(addr);
 	reg &= ~GPIO_BIT(offset);
@@ -445,7 +445,7 @@ static int aspeed_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -463,7 +463,7 @@ static int aspeed_gpio_dir_out(struct gpio_chip *gc,
 	if (!have_output(gpio, offset))
 		return -ENOTSUPP;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	reg = ioread32(addr);
 	reg |= GPIO_BIT(offset);
@@ -474,7 +474,7 @@ static int aspeed_gpio_dir_out(struct gpio_chip *gc,
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -492,11 +492,11 @@ static int aspeed_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
 	if (!have_output(gpio, offset))
 		return GPIO_LINE_DIRECTION_IN;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	val = ioread32(bank_reg(gpio, bank, reg_dir)) & GPIO_BIT(offset);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return val ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
 }
@@ -539,14 +539,14 @@ static void aspeed_gpio_irq_ack(struct irq_data *d)
 
 	status_addr = bank_reg(gpio, bank, reg_irq_status);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	iowrite32(bit, status_addr);
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static void aspeed_gpio_irq_set_mask(struct irq_data *d, bool set)
@@ -565,7 +565,7 @@ static void aspeed_gpio_irq_set_mask(struct irq_data *d, bool set)
 
 	addr = bank_reg(gpio, bank, reg_irq_enable);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	reg = ioread32(addr);
@@ -577,7 +577,7 @@ static void aspeed_gpio_irq_set_mask(struct irq_data *d, bool set)
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 }
 
 static void aspeed_gpio_irq_mask(struct irq_data *d)
@@ -629,7 +629,7 @@ static int aspeed_gpio_set_type(struct irq_data *d, unsigned int type)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	addr = bank_reg(gpio, bank, reg_irq_type0);
@@ -649,7 +649,7 @@ static int aspeed_gpio_set_type(struct irq_data *d, unsigned int type)
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	irq_set_handler_locked(d, handler);
 
@@ -719,7 +719,7 @@ static int aspeed_gpio_reset_tolerance(struct gpio_chip *chip,
 
 	treg = bank_reg(gpio, to_bank(offset), reg_tolerance);
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 	copro = aspeed_gpio_copro_request(gpio, offset);
 
 	val = readl(treg);
@@ -733,7 +733,7 @@ static int aspeed_gpio_reset_tolerance(struct gpio_chip *chip,
 
 	if (copro)
 		aspeed_gpio_copro_release(gpio, offset);
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return 0;
 }
@@ -859,7 +859,7 @@ static int enable_debounce(struct gpio_chip *chip, unsigned int offset,
 		return rc;
 	}
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	if (timer_allocation_registered(gpio, offset)) {
 		rc = unregister_allocated_timer(gpio, offset);
@@ -919,7 +919,7 @@ static int enable_debounce(struct gpio_chip *chip, unsigned int offset,
 	configure_timer(gpio, offset, i);
 
 out:
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return rc;
 }
@@ -930,13 +930,13 @@ static int disable_debounce(struct gpio_chip *chip, unsigned int offset)
 	unsigned long flags;
 	int rc;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	rc = unregister_allocated_timer(gpio, offset);
 	if (!rc)
 		configure_timer(gpio, offset, 0);
 
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 
 	return rc;
 }
@@ -1018,7 +1018,7 @@ int aspeed_gpio_copro_grab_gpio(struct gpio_desc *desc,
 		return -EINVAL;
 	bindex = offset >> 3;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	/* Sanity check, this shouldn't happen */
 	if (gpio->cf_copro_bankmap[bindex] == 0xff) {
@@ -1039,7 +1039,7 @@ int aspeed_gpio_copro_grab_gpio(struct gpio_desc *desc,
 	if (bit)
 		*bit = GPIO_OFFSET(offset);
  bail:
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(aspeed_gpio_copro_grab_gpio);
@@ -1063,7 +1063,7 @@ int aspeed_gpio_copro_release_gpio(struct gpio_desc *desc)
 		return -EINVAL;
 	bindex = offset >> 3;
 
-	spin_lock_irqsave(&gpio->lock, flags);
+	raw_spin_lock_irqsave(&gpio->lock, flags);
 
 	/* Sanity check, this shouldn't happen */
 	if (gpio->cf_copro_bankmap[bindex] == 0) {
@@ -1077,7 +1077,7 @@ int aspeed_gpio_copro_release_gpio(struct gpio_desc *desc)
 		aspeed_gpio_change_cmd_source(gpio, bank, bindex,
 					      GPIO_CMDSRC_ARM);
  bail:
-	spin_unlock_irqrestore(&gpio->lock, flags);
+	raw_spin_unlock_irqrestore(&gpio->lock, flags);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(aspeed_gpio_copro_release_gpio);
@@ -1151,7 +1151,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
 	if (IS_ERR(gpio->base))
 		return PTR_ERR(gpio->base);
 
-	spin_lock_init(&gpio->lock);
+	raw_spin_lock_init(&gpio->lock);
 
 	gpio_id = of_match_node(aspeed_gpio_of_table, pdev->dev.of_node);
 	if (!gpio_id)
-- 
GitLab


From aec69e2f33b4d9861c560867659848d0ac336478 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Tue, 30 Nov 2021 13:25:46 +0100
Subject: [PATCH 3221/4878] selftests/ftrace: make kprobe profile testcase
 description unique

[ Upstream commit e5992f373c6eed6d09e5858e9623df1259b3ce30 ]

Commit 32f6e5da83c7 ("selftests/ftrace: Add kprobe profile testcase")
added a new kprobes testcase, but has a description which does not
describe what the test case is doing and is duplicating the description
of another test case.

Therefore change the test case description, so it is unique and then
allows easily to tell which test case actually passed or failed.

Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/ftrace/test.d/kprobe/profile.tc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
index 98166fa3eb91c..34fb89b0c61fa 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
@@ -1,6 +1,6 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
-# description: Kprobe dynamic event - adding and removing
+# description: Kprobe profile
 # requires: kprobe_events
 
 ! grep -q 'myevent' kprobe_profile
-- 
GitLab


From af371e0abb6c42af9a4e26fa4e24b9917e8edcf9 Mon Sep 17 00:00:00 2001
From: Baochen Qiang <quic_bqiang@quicinc.com>
Date: Thu, 9 Dec 2021 09:19:49 +0800
Subject: [PATCH 3222/4878] ath11k: Avoid false DEADLOCK warning reported by
 lockdep

[ Upstream commit 767c94caf0efad136157110787fe221b74cb5c8a ]

With CONFIG_LOCKDEP=y and CONFIG_DEBUG_SPINLOCK=y, lockdep reports
below warning:

[  166.059415] ============================================
[  166.059416] WARNING: possible recursive locking detected
[  166.059418] 5.15.0-wt-ath+ #10 Tainted: G        W  O
[  166.059420] --------------------------------------------
[  166.059421] kworker/0:2/116 is trying to acquire lock:
[  166.059423] ffff9905f2083160 (&srng->lock){+.-.}-{2:2}, at: ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059440]
               but task is already holding lock:
[  166.059442] ffff9905f2083230 (&srng->lock){+.-.}-{2:2}, at: ath11k_dp_process_reo_status+0x95/0x2d0 [ath11k]
[  166.059491]
               other info that might help us debug this:
[  166.059492]  Possible unsafe locking scenario:

[  166.059493]        CPU0
[  166.059494]        ----
[  166.059495]   lock(&srng->lock);
[  166.059498]   lock(&srng->lock);
[  166.059500]
                *** DEADLOCK ***

[  166.059501]  May be due to missing lock nesting notation

[  166.059502] 3 locks held by kworker/0:2/116:
[  166.059504]  #0: ffff9905c0081548 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1f6/0x660
[  166.059511]  #1: ffff9d2400a5fe68 ((debug_obj_work).work){+.+.}-{0:0}, at: process_one_work+0x1f6/0x660
[  166.059517]  #2: ffff9905f2083230 (&srng->lock){+.-.}-{2:2}, at: ath11k_dp_process_reo_status+0x95/0x2d0 [ath11k]
[  166.059532]
               stack backtrace:
[  166.059534] CPU: 0 PID: 116 Comm: kworker/0:2 Kdump: loaded Tainted: G        W  O      5.15.0-wt-ath+ #10
[  166.059537] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0059.2019.1112.1124 11/12/2019
[  166.059539] Workqueue: events free_obj_work
[  166.059543] Call Trace:
[  166.059545]  <IRQ>
[  166.059547]  dump_stack_lvl+0x56/0x7b
[  166.059552]  __lock_acquire+0xb9a/0x1a50
[  166.059556]  lock_acquire+0x1e2/0x330
[  166.059560]  ? ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059571]  _raw_spin_lock_bh+0x33/0x70
[  166.059574]  ? ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059584]  ath11k_hal_reo_cmd_send+0x20/0x490 [ath11k]
[  166.059594]  ath11k_dp_tx_send_reo_cmd+0x3f/0x130 [ath11k]
[  166.059605]  ath11k_dp_rx_tid_del_func+0x221/0x370 [ath11k]
[  166.059618]  ath11k_dp_process_reo_status+0x22f/0x2d0 [ath11k]
[  166.059632]  ? ath11k_dp_service_srng+0x2ea/0x2f0 [ath11k]
[  166.059643]  ath11k_dp_service_srng+0x2ea/0x2f0 [ath11k]
[  166.059655]  ath11k_pci_ext_grp_napi_poll+0x1c/0x70 [ath11k_pci]
[  166.059659]  __napi_poll+0x28/0x230
[  166.059664]  net_rx_action+0x285/0x310
[  166.059668]  __do_softirq+0xe6/0x4d2
[  166.059672]  irq_exit_rcu+0xd2/0xf0
[  166.059675]  common_interrupt+0xa5/0xc0
[  166.059678]  </IRQ>
[  166.059679]  <TASK>
[  166.059680]  asm_common_interrupt+0x1e/0x40
[  166.059683] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70
[  166.059686] Code: 83 c7 18 e8 2a 95 43 ff 48 89 ef e8 22 d2 43 ff 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 63 2e 40 ff 65 8b 05 8c 59 97 5c 85 c0 74 0a 5b 5d c3 e8 00 6a
[  166.059689] RSP: 0018:ffff9d2400a5fca0 EFLAGS: 00000206
[  166.059692] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 0000000000000006
[  166.059694] RDX: 0000000000000000 RSI: ffffffffa404879b RDI: 0000000000000001
[  166.059696] RBP: ffff9905c0053000 R08: 0000000000000001 R09: 0000000000000001
[  166.059698] R10: ffff9d2400a5fc50 R11: 0000000000000001 R12: ffffe186c41e2840
[  166.059700] R13: 0000000000000001 R14: ffff9905c78a1c68 R15: 0000000000000001
[  166.059704]  free_debug_processing+0x257/0x3d0
[  166.059708]  ? free_obj_work+0x1f5/0x250
[  166.059712]  __slab_free+0x374/0x5a0
[  166.059718]  ? kmem_cache_free+0x2e1/0x370
[  166.059721]  ? free_obj_work+0x1f5/0x250
[  166.059724]  kmem_cache_free+0x2e1/0x370
[  166.059727]  free_obj_work+0x1f5/0x250
[  166.059731]  process_one_work+0x28b/0x660
[  166.059735]  ? process_one_work+0x660/0x660
[  166.059738]  worker_thread+0x37/0x390
[  166.059741]  ? process_one_work+0x660/0x660
[  166.059743]  kthread+0x176/0x1a0
[  166.059746]  ? set_kthread_struct+0x40/0x40
[  166.059749]  ret_from_fork+0x22/0x30
[  166.059754]  </TASK>

Since these two lockes are both initialized in ath11k_hal_srng_setup,
they are assigned with the same key. As a result lockdep suspects that
the task is trying to acquire the same lock (due to same key) while
already holding it, and thus reports the DEADLOCK warning. However as
they are different spinlock instances, the warning is false positive.

On the other hand, even no dead lock indeed, this is a major issue for
upstream regression testing as it disables lockdep functionality.

Fix it by assigning separate lock class key for each srng->lock.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211209011949.151472-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/hal.c | 22 ++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/hal.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index 9904c0eb75875..f3b9108ab6bd0 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -991,6 +991,7 @@ int ath11k_hal_srng_setup(struct ath11k_base *ab, enum hal_ring_type type,
 	srng->msi_data = params->msi_data;
 	srng->initialized = 1;
 	spin_lock_init(&srng->lock);
+	lockdep_set_class(&srng->lock, hal->srng_key + ring_id);
 
 	for (i = 0; i < HAL_SRNG_NUM_REG_GRP; i++) {
 		srng->hwreg_base[i] = srng_config->reg_start[i] +
@@ -1237,6 +1238,24 @@ static int ath11k_hal_srng_create_config(struct ath11k_base *ab)
 	return 0;
 }
 
+static void ath11k_hal_register_srng_key(struct ath11k_base *ab)
+{
+	struct ath11k_hal *hal = &ab->hal;
+	u32 ring_id;
+
+	for (ring_id = 0; ring_id < HAL_SRNG_RING_ID_MAX; ring_id++)
+		lockdep_register_key(hal->srng_key + ring_id);
+}
+
+static void ath11k_hal_unregister_srng_key(struct ath11k_base *ab)
+{
+	struct ath11k_hal *hal = &ab->hal;
+	u32 ring_id;
+
+	for (ring_id = 0; ring_id < HAL_SRNG_RING_ID_MAX; ring_id++)
+		lockdep_unregister_key(hal->srng_key + ring_id);
+}
+
 int ath11k_hal_srng_init(struct ath11k_base *ab)
 {
 	struct ath11k_hal *hal = &ab->hal;
@@ -1256,6 +1275,8 @@ int ath11k_hal_srng_init(struct ath11k_base *ab)
 	if (ret)
 		goto err_free_cont_rdp;
 
+	ath11k_hal_register_srng_key(ab);
+
 	return 0;
 
 err_free_cont_rdp:
@@ -1270,6 +1291,7 @@ void ath11k_hal_srng_deinit(struct ath11k_base *ab)
 {
 	struct ath11k_hal *hal = &ab->hal;
 
+	ath11k_hal_unregister_srng_key(ab);
 	ath11k_hal_free_cont_rdp(ab);
 	ath11k_hal_free_cont_wrp(ab);
 	kfree(hal->srng_config);
diff --git a/drivers/net/wireless/ath/ath11k/hal.h b/drivers/net/wireless/ath/ath11k/hal.h
index 1f1b29cd0aa39..5fbfded8d546c 100644
--- a/drivers/net/wireless/ath/ath11k/hal.h
+++ b/drivers/net/wireless/ath/ath11k/hal.h
@@ -888,6 +888,8 @@ struct ath11k_hal {
 	/* shadow register configuration */
 	u32 shadow_reg_addr[HAL_SHADOW_NUM_REGS];
 	int num_shadow_reg_configured;
+
+	struct lock_class_key srng_key[HAL_SRNG_RING_ID_MAX];
 };
 
 u32 ath11k_hal_reo_qdesc_size(u32 ba_window_size, u8 tid);
-- 
GitLab


From de360d94438688fd29e548a79abb9ee6ecd4de0f Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Wed, 13 Oct 2021 09:07:19 +0200
Subject: [PATCH 3223/4878] x86/mce: Allow instrumentation during task work
 queueing

[ Upstream commit 4fbce464db81a42f9a57ee242d6150ec7f996415 ]

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0xdb1: call to queue_task_work() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-6-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/core.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 14b34963eb1f7..34fffffaf8730 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -1443,6 +1443,14 @@ noinstr void do_machine_check(struct pt_regs *regs)
 	if (worst != MCE_AR_SEVERITY && !kill_it)
 		goto out;
 
+	/*
+	 * Enable instrumentation around the external facilities like
+	 * task_work_add() (via queue_task_work()), fixup_exception() etc.
+	 * For now, that is. Fixing this properly would need a lot more involved
+	 * reorganization.
+	 */
+	instrumentation_begin();
+
 	/* Fault was in user mode and we need to take some action */
 	if ((m.cs & 3) == 3) {
 		/* If this triggers there is no way to recover. Die hard. */
@@ -1468,6 +1476,9 @@ noinstr void do_machine_check(struct pt_regs *regs)
 		if (m.kflags & MCE_IN_KERNEL_COPYIN)
 			queue_task_work(&m, msg, kill_it);
 	}
+
+	instrumentation_end();
+
 out:
 	mce_wrmsrl(MSR_IA32_MCG_STATUS, 0);
 }
-- 
GitLab


From f21ca973b43fb23416bd89dc267aa51249c20afb Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Mon, 1 Nov 2021 13:39:35 +0100
Subject: [PATCH 3224/4878] x86/mce: Mark mce_panic() noinstr

[ Upstream commit 3c7ce80a818fa7950be123cac80cd078e5ac1013 ]

And allow instrumentation inside it because it does calls to other
facilities which will not be tagged noinstr.

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0xc73: call to mce_panic() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-8-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/core.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 34fffffaf8730..64d8a96a2bf1e 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -295,11 +295,17 @@ static void wait_for_panic(void)
 	panic("Panicing machine check CPU died");
 }
 
-static void mce_panic(const char *msg, struct mce *final, char *exp)
+static noinstr void mce_panic(const char *msg, struct mce *final, char *exp)
 {
-	int apei_err = 0;
 	struct llist_node *pending;
 	struct mce_evt_llist *l;
+	int apei_err = 0;
+
+	/*
+	 * Allow instrumentation around external facilities usage. Not that it
+	 * matters a whole lot since the machine is going to panic anyway.
+	 */
+	instrumentation_begin();
 
 	if (!fake_panic) {
 		/*
@@ -314,7 +320,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 	} else {
 		/* Don't log too much for fake panic */
 		if (atomic_inc_return(&mce_fake_panicked) > 1)
-			return;
+			goto out;
 	}
 	pending = mce_gen_pool_prepare_records();
 	/* First print corrected ones that are still unlogged */
@@ -352,6 +358,9 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 		panic(msg);
 	} else
 		pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
+
+out:
+	instrumentation_end();
 }
 
 /* Support code for software error injection */
-- 
GitLab


From 1ad3e60f1fec185d11196028136e60e8e3009b37 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Mon, 1 Nov 2021 16:43:33 +0100
Subject: [PATCH 3225/4878] x86/mce: Mark mce_end() noinstr

[ Upstream commit b4813539d37fa31fed62cdfab7bd2dd8929c5b2e ]

It is called by the #MC handler which is noinstr.

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0xbd6: call to memset() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-9-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/core.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 64d8a96a2bf1e..2a608f0819765 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -1070,10 +1070,13 @@ static int mce_start(int *no_way_out)
  * Synchronize between CPUs after main scanning loop.
  * This invokes the bulk of the Monarch processing.
  */
-static int mce_end(int order)
+static noinstr int mce_end(int order)
 {
-	int ret = -1;
 	u64 timeout = (u64)mca_cfg.monarch_timeout * NSEC_PER_USEC;
+	int ret = -1;
+
+	/* Allow instrumentation around external facilities. */
+	instrumentation_begin();
 
 	if (!timeout)
 		goto reset;
@@ -1117,7 +1120,8 @@ static int mce_end(int order)
 		/*
 		 * Don't reset anything. That's done by the Monarch.
 		 */
-		return 0;
+		ret = 0;
+		goto out;
 	}
 
 	/*
@@ -1132,6 +1136,10 @@ reset:
 	 * Let others run again.
 	 */
 	atomic_set(&mce_executing, 0);
+
+out:
+	instrumentation_end();
+
 	return ret;
 }
 
-- 
GitLab


From 8c72de32ff134f48115591b9ea2bb03c1bbd3804 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Tue, 2 Nov 2021 11:14:48 +0100
Subject: [PATCH 3226/4878] x86/mce: Mark mce_read_aux() noinstr

[ Upstream commit db6c996d6ce45dfb44891f0824a65ecec216f47a ]

Fixes

  vmlinux.o: warning: objtool: do_machine_check()+0x681: call to mce_read_aux() leaves .noinstr.text section

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-10-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 2a608f0819765..5cf1a024408bf 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -691,7 +691,7 @@ static struct notifier_block mce_default_nb = {
 /*
  * Read ADDR and MISC registers.
  */
-static void mce_read_aux(struct mce *m, int i)
+static noinstr void mce_read_aux(struct mce *m, int i)
 {
 	if (m->status & MCI_STATUS_MISCV)
 		m->misc = mce_rdmsrl(msr_ops.misc(i));
-- 
GitLab


From 0e8805f73b69f15afdd10e703a7551eae8915e7b Mon Sep 17 00:00:00 2001
From: Suresh Kumar <surkumar@redhat.com>
Date: Mon, 13 Dec 2021 11:17:09 +0530
Subject: [PATCH 3227/4878] net: bonding: debug: avoid printing debug logs when
 bond is not notifying peers

[ Upstream commit fee32de284ac277ba434a2d59f8ce46528ff3946 ]

Currently "bond_should_notify_peers: slave ..." messages are printed whenever
"bond_should_notify_peers" function is called.

+++
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Received LACPDU on port 1
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): Rx Machine: Port=1, Last State=6, Curr State=6
Dec 12 12:33:26 node1 kernel: bond0: (slave enp0s25): partner sync=1
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:26 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
...
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Received LACPDU on port 2
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): Rx Machine: Port=2, Last State=6, Curr State=6
Dec 12 12:33:30 node1 kernel: bond0: (slave enp4s3): partner sync=1
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
Dec 12 12:33:30 node1 kernel: bond0: bond_should_notify_peers: slave enp0s25
+++

This is confusing and can also clutter up debug logs.
Print logs only when the peer notification happens.

Signed-off-by: Suresh Kumar <suresh2514@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 645c7cabcbe4d..e2e6a69adab4b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1061,9 +1061,6 @@ static bool bond_should_notify_peers(struct bonding *bond)
 	slave = rcu_dereference(bond->curr_active_slave);
 	rcu_read_unlock();
 
-	netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n",
-		   slave ? slave->dev->name : "NULL");
-
 	if (!slave || !bond->send_peer_notif ||
 	    bond->send_peer_notif %
 	    max(1, bond->params.peer_notif_delay) != 0 ||
@@ -1071,6 +1068,9 @@ static bool bond_should_notify_peers(struct bonding *bond)
 	    test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
 		return false;
 
+	netdev_dbg(bond->dev, "bond_should_notify_peers: slave %s\n",
+		   slave ? slave->dev->name : "NULL");
+
 	return true;
 }
 
-- 
GitLab


From 59f03633463fba869cab90cad0540fb48312102f Mon Sep 17 00:00:00 2001
From: Paolo Abeni <pabeni@redhat.com>
Date: Tue, 30 Nov 2021 11:08:06 +0100
Subject: [PATCH 3228/4878] bpf: Do not WARN in bpf_warn_invalid_xdp_action()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 2cbad989033bff0256675c38f96f5faab852af4b ]

The WARN_ONCE() in bpf_warn_invalid_xdp_action() can be triggered by
any bugged program, and even attaching a correct program to a NIC
not supporting the given action.

The resulting splat, beyond polluting the logs, fouls automated tools:
e.g. a syzkaller reproducers using an XDP program returning an
unsupported action will never pass validation.

Replace the WARN_ONCE with a less intrusive pr_warn_once().

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/016ceec56e4817ebb2a9e35ce794d5c917df572c.1638189075.git.pabeni@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/filter.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/filter.c b/net/core/filter.c
index 706c31ae65b01..7fa4283f2a8c0 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -7921,9 +7921,9 @@ void bpf_warn_invalid_xdp_action(u32 act)
 {
 	const u32 act_max = XDP_REDIRECT;
 
-	WARN_ONCE(1, "%s XDP return value %u, expect packet loss!\n",
-		  act > act_max ? "Illegal" : "Driver unsupported",
-		  act);
+	pr_warn_once("%s XDP return value %u, expect packet loss!\n",
+		     act > act_max ? "Illegal" : "Driver unsupported",
+		     act);
 }
 EXPORT_SYMBOL_GPL(bpf_warn_invalid_xdp_action);
 
-- 
GitLab


From d698e024be2ea5bb4f441e0b07f82def42d6a168 Mon Sep 17 00:00:00 2001
From: Alistair Francis <alistair@alistair23.me>
Date: Wed, 8 Dec 2021 22:40:43 +1000
Subject: [PATCH 3229/4878] HID: quirks: Allow inverting the absolute X/Y
 values

[ Upstream commit fd8d135b2c5e88662f2729e034913f183455a667 ]

Add a HID_QUIRK_X_INVERT/HID_QUIRK_Y_INVERT quirk that can be used
to invert the X/Y values.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
[bentiss: silence checkpatch warning]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211208124045.61815-2-alistair@alistair23.me
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-input.c | 6 ++++++
 include/linux/hid.h     | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 580d378342c41..eb53855898c8d 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1288,6 +1288,12 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 
 	input = field->hidinput->input;
 
+	if (usage->type == EV_ABS &&
+	    (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) ||
+	     ((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y))) {
+		value = field->logical_maximum - value;
+	}
+
 	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 		int hat_dir = usage->hat_dir;
 		if (!hat_dir)
diff --git a/include/linux/hid.h b/include/linux/hid.h
index fc56d53cc68bf..2ba33d708942c 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -345,6 +345,8 @@ struct hid_item {
 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
 #define HID_QUIRK_ALWAYS_POLL			BIT(10)
 #define HID_QUIRK_INPUT_PER_APP			BIT(11)
+#define HID_QUIRK_X_INVERT			BIT(12)
+#define HID_QUIRK_Y_INVERT			BIT(13)
 #define HID_QUIRK_SKIP_OUTPUT_REPORTS		BIT(16)
 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID		BIT(17)
 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP	BIT(18)
-- 
GitLab


From f6bc6b178ce1dc6e2545f5830fe79e2c6b14724f Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Tue, 30 Nov 2021 23:58:19 +0100
Subject: [PATCH 3230/4878] media: igorplugusb: receiver overflow should be
 reported

[ Upstream commit 8fede658e7ddb605bbd68ed38067ddb0af033db4 ]

Without this, some IR will be missing mid-stream and we might decode
something which never really occurred.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/rc/igorplugusb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/igorplugusb.c b/drivers/media/rc/igorplugusb.c
index effaa5751d6c9..3e9988ee785f0 100644
--- a/drivers/media/rc/igorplugusb.c
+++ b/drivers/media/rc/igorplugusb.c
@@ -64,9 +64,11 @@ static void igorplugusb_irdata(struct igorplugusb *ir, unsigned len)
 	if (start >= len) {
 		dev_err(ir->dev, "receive overflow invalid: %u", overflow);
 	} else {
-		if (overflow > 0)
+		if (overflow > 0) {
 			dev_warn(ir->dev, "receive overflow, at least %u lost",
 								overflow);
+			ir_raw_event_reset(ir->rc);
+		}
 
 		do {
 			rawir.duration = ir->buf_in[i] * 85;
-- 
GitLab


From 51a5156bb779aa6ef9e208c1719ddfa12ce0d6d1 Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Fri, 3 Dec 2021 16:40:30 +0100
Subject: [PATCH 3231/4878] media: saa7146: hexium_gemini: Fix a NULL pointer
 dereference in hexium_attach()

[ Upstream commit 3af86b046933ba513d08399dba0d4d8b50d607d0 ]

In hexium_attach(dev, info), saa7146_vv_init() is called to allocate
a new memory for dev->vv_data. saa7146_vv_release() will be called on
failure of saa7146_register_device(). There is a dereference of
dev->vv_data in saa7146_vv_release(), which could lead to a NULL
pointer dereference on failure of saa7146_vv_init().

Fix this bug by adding a check of saa7146_vv_init().

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_VIDEO_HEXIUM_GEMINI=m show no new warnings,
and our static analyzer no longer warns about this code.

Link: https://lore.kernel.org/linux-media/20211203154030.111210-1-zhou1615@umn.edu
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/common/saa7146/saa7146_fops.c | 2 +-
 drivers/media/pci/saa7146/hexium_gemini.c   | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c
index d6531874faa65..8047e305f3d01 100644
--- a/drivers/media/common/saa7146/saa7146_fops.c
+++ b/drivers/media/common/saa7146/saa7146_fops.c
@@ -523,7 +523,7 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
 		ERR("out of memory. aborting.\n");
 		kfree(vv);
 		v4l2_ctrl_handler_free(hdl);
-		return -1;
+		return -ENOMEM;
 	}
 
 	saa7146_video_uops.init(dev,vv);
diff --git a/drivers/media/pci/saa7146/hexium_gemini.c b/drivers/media/pci/saa7146/hexium_gemini.c
index 2214c74bbbf15..3947701cd6c7e 100644
--- a/drivers/media/pci/saa7146/hexium_gemini.c
+++ b/drivers/media/pci/saa7146/hexium_gemini.c
@@ -284,7 +284,12 @@ static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_d
 	hexium_set_input(hexium, 0);
 	hexium->cur_input = 0;
 
-	saa7146_vv_init(dev, &vv_data);
+	ret = saa7146_vv_init(dev, &vv_data);
+	if (ret) {
+		i2c_del_adapter(&hexium->i2c_adapter);
+		kfree(hexium);
+		return ret;
+	}
 
 	vv_data.vid_ops.vidioc_enum_input = vidioc_enum_input;
 	vv_data.vid_ops.vidioc_g_input = vidioc_g_input;
-- 
GitLab


From 5d54ed155031a4b13cd92b3deb404673d82d7504 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 10 Nov 2021 18:17:09 +0100
Subject: [PATCH 3232/4878] mmc: core: Fixup storing of OCR for
 MMC_QUIRK_NONSTD_SDIO

[ Upstream commit 8c3e5b74b9e2146f564905e50ca716591c76d4f1 ]

The mmc core takes a specific path to support initializing of a
non-standard SDIO card. This is triggered by looking for the card-quirk,
MMC_QUIRK_NONSTD_SDIO.

In mmc_sdio_init_card() this gets rather messy, as it causes the code to
bail out earlier, compared to the usual path. This leads to that the OCR
doesn't get saved properly in card->ocr. Fortunately, only omap_hsmmc has
been using the MMC_QUIRK_NONSTD_SDIO and is dealing with the issue, by
assigning a hardcoded value (0x80) to card->ocr from an ->init_card() ops.

To make the behaviour consistent, let's instead rely on the core to save
the OCR in card->ocr during initialization.

Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Link: https://lore.kernel.org/r/e7936cff7fc24d187ef2680d3b4edb0ade58f293.1636564631.git.hns@goldelico.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/core/sdio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 1b0853a82189a..99a4ce68d82f1 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -708,6 +708,8 @@ try_again:
 	if (host->ops->init_card)
 		host->ops->init_card(host, card);
 
+	card->ocr = ocr_card;
+
 	/*
 	 * If the host and card support UHS-I mode request the card
 	 * to switch to 1.8V signaling level.  No 1.8v signalling if
@@ -820,7 +822,7 @@ try_again:
 			goto mismatch;
 		}
 	}
-	card->ocr = ocr_card;
+
 	mmc_fixup_device(card, sdio_fixup_methods);
 
 	if (card->type == MMC_TYPE_SD_COMBO) {
-- 
GitLab


From b6f7f0ad5af5fa049dcb703db186423af9226e25 Mon Sep 17 00:00:00 2001
From: Paul Moore <paul@paul-moore.com>
Date: Mon, 13 Dec 2021 15:45:20 -0500
Subject: [PATCH 3233/4878] audit: ensure userspace is penalized the same as
 the kernel when under pressure

[ Upstream commit 8f110f530635af44fff1f4ee100ecef0bac62510 ]

Due to the audit control mutex necessary for serializing audit
userspace messages we haven't been able to block/penalize userspace
processes that attempt to send audit records while the system is
under audit pressure.  The result is that privileged userspace
applications have a priority boost with respect to audit as they are
not bound by the same audit queue throttling as the other tasks on
the system.

This patch attempts to restore some balance to the system when under
audit pressure by blocking these privileged userspace tasks after
they have finished their audit processing, and dropped the audit
control mutex, but before they return to userspace.

Reported-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Tested-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/audit.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index d784000921da3..2a38cbaf3ddb7 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1540,6 +1540,20 @@ static void audit_receive(struct sk_buff  *skb)
 		nlh = nlmsg_next(nlh, &len);
 	}
 	audit_ctl_unlock();
+
+	/* can't block with the ctrl lock, so penalize the sender now */
+	if (audit_backlog_limit &&
+	    (skb_queue_len(&audit_queue) > audit_backlog_limit)) {
+		DECLARE_WAITQUEUE(wait, current);
+
+		/* wake kauditd to try and flush the queue */
+		wake_up_interruptible(&kauditd_wait);
+
+		add_wait_queue_exclusive(&audit_backlog_wait, &wait);
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(audit_backlog_wait_time);
+		remove_wait_queue(&audit_backlog_wait, &wait);
+	}
 }
 
 /* Log information about who is connecting to the audit multicast socket */
@@ -1824,7 +1838,9 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
 	 *    task_tgid_vnr() since auditd_pid is set in audit_receive_msg()
 	 *    using a PID anchored in the caller's namespace
 	 * 2. generator holding the audit_cmd_mutex - we don't want to block
-	 *    while holding the mutex */
+	 *    while holding the mutex, although we do penalize the sender
+	 *    later in audit_receive() when it is safe to block
+	 */
 	if (!(auditd_test_task(current) || audit_ctl_owner_current())) {
 		long stime = audit_backlog_wait_time;
 
-- 
GitLab


From b68c56a149e41995c67d15d19170f822d5dbcc8b Mon Sep 17 00:00:00 2001
From: Biwen Li <biwen.li@nxp.com>
Date: Tue, 14 Dec 2021 03:32:38 -0600
Subject: [PATCH 3234/4878] arm64: dts: ls1028a-qds: move rtc node to the
 correct i2c bus

[ Upstream commit cbe9d948eadfe352ad45495a7cc5bf20a1b29d90 ]

The i2c rtc is on i2c2 bus not i2c1 bus, so fix it in dts.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Li Yang <leoyang.lil@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
index 13cdc958ba3ea..71858c9376c25 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
@@ -261,11 +261,6 @@
 				vcc-supply = <&sb_3v3>;
 			};
 
-			rtc@51 {
-				compatible = "nxp,pcf2129";
-				reg = <0x51>;
-			};
-
 			eeprom@56 {
 				compatible = "atmel,24c512";
 				reg = <0x56>;
@@ -307,6 +302,15 @@
 
 };
 
+&i2c1 {
+	status = "okay";
+
+	rtc@51 {
+		compatible = "nxp,pcf2129";
+		reg = <0x51>;
+	};
+};
+
 &enetc_port1 {
 	phy-handle = <&qds_phy1>;
 	phy-connection-type = "rgmii-id";
-- 
GitLab


From 5dfc6fa0b8c2f8a336a2e559a79d5a98ac28a81d Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Tue, 7 Dec 2021 14:28:29 +0100
Subject: [PATCH 3235/4878] arm64: tegra: Adjust length of CCPLEX cluster MMIO
 region

[ Upstream commit 2b14cbd643feea5fc17c6e8bead4e71088c69acd ]

The Tegra186 CCPLEX cluster register region is 4 MiB is length, not 4
MiB - 1. This was likely presumed to be the "limit" rather than length.
Fix it up.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra186.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 0c46ab7bbbf37..eec6418ecdb1a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -985,7 +985,7 @@
 
 	ccplex@e000000 {
 		compatible = "nvidia,tegra186-ccplex-cluster";
-		reg = <0x0 0x0e000000 0x0 0x3fffff>;
+		reg = <0x0 0x0e000000 0x0 0x400000>;
 
 		nvidia,bpmp = <&bpmp>;
 	};
-- 
GitLab


From 37b25de3af10a3082f9ef5888de0f8602c5dcadf Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 10 Dec 2021 17:10:13 +0100
Subject: [PATCH 3236/4878] PM: runtime: Add safety net to supplier device
 release

[ Upstream commit d1579e61192e0e686faa4208500ef4c3b529b16c ]

Because refcount_dec_not_one() returns true if the target refcount
becomes saturated, it is generally unsafe to use its return value as
a loop termination condition, but that is what happens when a device
link's supplier device is released during runtime PM suspend
operations and on device link removal.

To address this, introduce pm_runtime_release_supplier() to be used
in the above cases which will check the supplier device's runtime
PM usage counter in addition to the refcount_dec_not_one() return
value, so the loop can be terminated in case the rpm_active refcount
value becomes invalid, and update the code in question to use it as
appropriate.

This change is not expected to have any visible functional impact.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/core.c          |  3 +--
 drivers/base/power/runtime.c | 41 ++++++++++++++++++++++++++----------
 include/linux/pm_runtime.h   |  3 +++
 3 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 389d13616d1df..c0566aff53551 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -348,8 +348,7 @@ static void device_link_release_fn(struct work_struct *work)
 	/* Ensure that all references to the link object have been dropped. */
 	device_link_synchronize_removal();
 
-	while (refcount_dec_not_one(&link->rpm_active))
-		pm_runtime_put(link->supplier);
+	pm_runtime_release_supplier(link, true);
 
 	put_device(link->consumer);
 	put_device(link->supplier);
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index bc649da4899a0..1573319404888 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -305,19 +305,40 @@ static int rpm_get_suppliers(struct device *dev)
 	return 0;
 }
 
+/**
+ * pm_runtime_release_supplier - Drop references to device link's supplier.
+ * @link: Target device link.
+ * @check_idle: Whether or not to check if the supplier device is idle.
+ *
+ * Drop all runtime PM references associated with @link to its supplier device
+ * and if @check_idle is set, check if that device is idle (and so it can be
+ * suspended).
+ */
+void pm_runtime_release_supplier(struct device_link *link, bool check_idle)
+{
+	struct device *supplier = link->supplier;
+
+	/*
+	 * The additional power.usage_count check is a safety net in case
+	 * the rpm_active refcount becomes saturated, in which case
+	 * refcount_dec_not_one() would return true forever, but it is not
+	 * strictly necessary.
+	 */
+	while (refcount_dec_not_one(&link->rpm_active) &&
+	       atomic_read(&supplier->power.usage_count) > 0)
+		pm_runtime_put_noidle(supplier);
+
+	if (check_idle)
+		pm_request_idle(supplier);
+}
+
 static void __rpm_put_suppliers(struct device *dev, bool try_to_suspend)
 {
 	struct device_link *link;
 
 	list_for_each_entry_rcu(link, &dev->links.suppliers, c_node,
-				device_links_read_lock_held()) {
-
-		while (refcount_dec_not_one(&link->rpm_active))
-			pm_runtime_put_noidle(link->supplier);
-
-		if (try_to_suspend)
-			pm_request_idle(link->supplier);
-	}
+				device_links_read_lock_held())
+		pm_runtime_release_supplier(link, try_to_suspend);
 }
 
 static void rpm_put_suppliers(struct device *dev)
@@ -1755,9 +1776,7 @@ void pm_runtime_drop_link(struct device_link *link)
 		return;
 
 	pm_runtime_drop_link_count(link->consumer);
-
-	while (refcount_dec_not_one(&link->rpm_active))
-		pm_runtime_put(link->supplier);
+	pm_runtime_release_supplier(link, true);
 }
 
 static bool pm_runtime_need_not_resume(struct device *dev)
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 161acd4ede448..30091ab5de287 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -58,6 +58,7 @@ extern void pm_runtime_get_suppliers(struct device *dev);
 extern void pm_runtime_put_suppliers(struct device *dev);
 extern void pm_runtime_new_link(struct device *dev);
 extern void pm_runtime_drop_link(struct device_link *link);
+extern void pm_runtime_release_supplier(struct device_link *link, bool check_idle);
 
 /**
  * pm_runtime_get_if_in_use - Conditionally bump up runtime PM usage counter.
@@ -279,6 +280,8 @@ static inline void pm_runtime_get_suppliers(struct device *dev) {}
 static inline void pm_runtime_put_suppliers(struct device *dev) {}
 static inline void pm_runtime_new_link(struct device *dev) {}
 static inline void pm_runtime_drop_link(struct device_link *link) {}
+static inline void pm_runtime_release_supplier(struct device_link *link,
+					       bool check_idle) {}
 
 #endif /* !CONFIG_PM */
 
-- 
GitLab


From 282286c632a2ae8def0f781e643c099317df4252 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 16 Dec 2021 20:32:15 +0100
Subject: [PATCH 3237/4878] cpufreq: Fix initialization of min and max
 frequency QoS requests

[ Upstream commit 521223d8b3ec078f670c7c35a1a04b1b2af07966 ]

The min and max frequency QoS requests in the cpufreq core are
initialized to whatever the current min and max frequency values are
at the init time, but if any of these values change later (for
example, cpuinfo.max_freq is updated by the driver), these initial
request values will be limiting the CPU frequency unnecessarily
unless they are changed by user space via sysfs.

To address this, initialize min_freq_req and max_freq_req to
FREQ_QOS_MIN_DEFAULT_VALUE and FREQ_QOS_MAX_DEFAULT_VALUE,
respectively, so they don't really limit anything until user
space updates them.

Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cpufreq/cpufreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 8e159fb6af9cd..30dafe8fc5054 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1400,7 +1400,7 @@ static int cpufreq_online(unsigned int cpu)
 
 		ret = freq_qos_add_request(&policy->constraints,
 					   policy->min_freq_req, FREQ_QOS_MIN,
-					   policy->min);
+					   FREQ_QOS_MIN_DEFAULT_VALUE);
 		if (ret < 0) {
 			/*
 			 * So we don't call freq_qos_remove_request() for an
@@ -1420,7 +1420,7 @@ static int cpufreq_online(unsigned int cpu)
 
 		ret = freq_qos_add_request(&policy->constraints,
 					   policy->max_freq_req, FREQ_QOS_MAX,
-					   policy->max);
+					   FREQ_QOS_MAX_DEFAULT_VALUE);
 		if (ret < 0) {
 			policy->max_freq_req = NULL;
 			goto out_destroy_policy;
-- 
GitLab


From e10de31055479e81819645ac00434f695d357d0a Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
Date: Wed, 15 Dec 2021 20:01:06 +0800
Subject: [PATCH 3238/4878] usb: hub: Add delay for SuperSpeed hub resume to
 let links transit to U0

[ Upstream commit 00558586382891540c59c9febc671062425a6e47 ]

When a new USB device gets plugged to nested hubs, the affected hub,
which connects to usb 2-1.4-port2, doesn't report there's any change,
hence the nested hubs go back to runtime suspend like nothing happened:
[  281.032951] usb usb2: usb wakeup-resume
[  281.032959] usb usb2: usb auto-resume
[  281.032974] hub 2-0:1.0: hub_resume
[  281.033011] usb usb2-port1: status 0263 change 0000
[  281.033077] hub 2-0:1.0: state 7 ports 4 chg 0000 evt 0000
[  281.049797] usb 2-1: usb wakeup-resume
[  281.069800] usb 2-1: Waited 0ms for CONNECT
[  281.069810] usb 2-1: finish resume
[  281.070026] hub 2-1:1.0: hub_resume
[  281.070250] usb 2-1-port4: status 0203 change 0000
[  281.070272] usb usb2-port1: resume, status 0
[  281.070282] hub 2-1:1.0: state 7 ports 4 chg 0010 evt 0000
[  281.089813] usb 2-1.4: usb wakeup-resume
[  281.109792] usb 2-1.4: Waited 0ms for CONNECT
[  281.109801] usb 2-1.4: finish resume
[  281.109991] hub 2-1.4:1.0: hub_resume
[  281.110147] usb 2-1.4-port2: status 0263 change 0000
[  281.110234] usb 2-1-port4: resume, status 0
[  281.110239] usb 2-1-port4: status 0203, change 0000, 10.0 Gb/s
[  281.110266] hub 2-1.4:1.0: state 7 ports 4 chg 0000 evt 0000
[  281.110426] hub 2-1.4:1.0: hub_suspend
[  281.110565] usb 2-1.4: usb auto-suspend, wakeup 1
[  281.130998] hub 2-1:1.0: hub_suspend
[  281.137788] usb 2-1: usb auto-suspend, wakeup 1
[  281.142935] hub 2-0:1.0: state 7 ports 4 chg 0000 evt 0000
[  281.177828] usb 2-1: usb wakeup-resume
[  281.197839] usb 2-1: Waited 0ms for CONNECT
[  281.197850] usb 2-1: finish resume
[  281.197984] hub 2-1:1.0: hub_resume
[  281.198203] usb 2-1-port4: status 0203 change 0000
[  281.198228] usb usb2-port1: resume, status 0
[  281.198237] hub 2-1:1.0: state 7 ports 4 chg 0010 evt 0000
[  281.217835] usb 2-1.4: usb wakeup-resume
[  281.237834] usb 2-1.4: Waited 0ms for CONNECT
[  281.237845] usb 2-1.4: finish resume
[  281.237990] hub 2-1.4:1.0: hub_resume
[  281.238067] usb 2-1.4-port2: status 0263 change 0000
[  281.238148] usb 2-1-port4: resume, status 0
[  281.238152] usb 2-1-port4: status 0203, change 0000, 10.0 Gb/s
[  281.238166] hub 2-1.4:1.0: state 7 ports 4 chg 0000 evt 0000
[  281.238385] hub 2-1.4:1.0: hub_suspend
[  281.238523] usb 2-1.4: usb auto-suspend, wakeup 1
[  281.258076] hub 2-1:1.0: hub_suspend
[  281.265744] usb 2-1: usb auto-suspend, wakeup 1
[  281.285976] hub 2-0:1.0: hub_suspend
[  281.285988] usb usb2: bus auto-suspend, wakeup 1

USB 3.2 spec, 9.2.5.4 "Changing Function Suspend State" says that "If
the link is in a non-U0 state, then the device must transition the link
to U0 prior to sending the remote wake message", but the hub only
transits the link to U0 after signaling remote wakeup.

So be more forgiving and use a 20ms delay to let the link transit to U0
for remote wakeup.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20211215120108.336597-1-kai.heng.feng@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/core/hub.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index af15dbe6bb141..18ee3914b4686 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1109,7 +1109,10 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
 		} else {
 			hub_power_on(hub, true);
 		}
-	}
+	/* Give some time on remote wakeup to let links to transit to U0 */
+	} else if (hub_is_superspeed(hub->hdev))
+		msleep(20);
+
  init2:
 
 	/*
-- 
GitLab


From 3ef25f3122c07d143732e27235edb4eaecabb3da Mon Sep 17 00:00:00 2001
From: Zekun Shen <bruceshenzk@gmail.com>
Date: Thu, 28 Oct 2021 18:21:42 -0400
Subject: [PATCH 3239/4878] ath9k: Fix out-of-bound memcpy in
 ath9k_hif_usb_rx_stream

[ Upstream commit 6ce708f54cc8d73beca213cec66ede5ce100a781 ]

Large pkt_len can lead to out-out-bound memcpy. Current
ath9k_hif_usb_rx_stream allows combining the content of two urb
inputs to one pkt. The first input can indicate the size of the
pkt. Any remaining size is saved in hif_dev->rx_remain_len.
While processing the next input, memcpy is used with rx_remain_len.

4-byte pkt_len can go up to 0xffff, while a single input is 0x4000
maximum in size (MAX_RX_BUF_SIZE). Thus, the patch adds a check for
pkt_len which must not exceed 2 * MAX_RX_BUG_SIZE.

BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
Read of size 46393 at addr ffff888018798000 by task kworker/0:1/23

CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 5.6.0 #63
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
Workqueue: events request_firmware_work_func
Call Trace:
 <IRQ>
 dump_stack+0x76/0xa0
 print_address_description.constprop.0+0x16/0x200
 ? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 ? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 __kasan_report.cold+0x37/0x7c
 ? ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 kasan_report+0xe/0x20
 check_memory_region+0x15a/0x1d0
 memcpy+0x20/0x50
 ath9k_hif_usb_rx_cb+0x490/0xed7 [ath9k_htc]
 ? hif_usb_mgmt_cb+0x2d9/0x2d9 [ath9k_htc]
 ? _raw_spin_lock_irqsave+0x7b/0xd0
 ? _raw_spin_trylock_bh+0x120/0x120
 ? __usb_unanchor_urb+0x12f/0x210
 __usb_hcd_giveback_urb+0x1e4/0x380
 usb_giveback_urb_bh+0x241/0x4f0
 ? __hrtimer_run_queues+0x316/0x740
 ? __usb_hcd_giveback_urb+0x380/0x380
 tasklet_action_common.isra.0+0x135/0x330
 __do_softirq+0x18c/0x634
 irq_exit+0x114/0x140
 smp_apic_timer_interrupt+0xde/0x380
 apic_timer_interrupt+0xf/0x20

I found the bug using a custome USBFuzz port. It's a research work
to fuzz USB stack/drivers. I modified it to fuzz ath9k driver only,
providing hand-crafted usb descriptors to QEMU.

After fixing the value of pkt_tag to ATH_USB_RX_STREAM_MODE_TAG in QEMU
emulation, I found the KASAN report. The bug is triggerable whenever
pkt_len is above two MAX_RX_BUG_SIZE. I used the same input that crashes
to test the driver works when applying the patch.

Signed-off-by: Zekun Shen <bruceshenzk@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/YXsidrRuK6zBJicZ@10-18-43-117.dynapool.wireless.nyu.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/hif_usb.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 860da13bfb6ac..f06eec99de688 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -590,6 +590,13 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
 			return;
 		}
 
+		if (pkt_len > 2 * MAX_RX_BUF_SIZE) {
+			dev_err(&hif_dev->udev->dev,
+				"ath9k_htc: invalid pkt_len (%x)\n", pkt_len);
+			RX_STAT_INC(skb_dropped);
+			return;
+		}
+
 		pad_len = 4 - (pkt_len & 0x3);
 		if (pad_len == 4)
 			pad_len = 0;
-- 
GitLab


From c0a1d844e3e7cd65aa0d884b4d4bbf0351c6df33 Mon Sep 17 00:00:00 2001
From: Po-Hao Huang <phhuang@realtek.com>
Date: Fri, 17 Dec 2021 09:27:08 +0800
Subject: [PATCH 3240/4878] rtw88: 8822c: update rx settings to prevent
 potential hw deadlock

[ Upstream commit c1afb26727d9e507d3e17a9890e7aaf7fc85cd55 ]

These settings enables mac to detect and recover when rx fifo
circuit deadlock occurs. Previous version missed this, so we fix it.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211217012708.8623-1-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/main.c     | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8821c.h | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8822b.c | 2 +-
 drivers/net/wireless/realtek/rtw88/rtw8822c.c | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 565efd8806247..2ef1416899f03 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1652,7 +1652,7 @@ int rtw_core_init(struct rtw_dev *rtwdev)
 
 	/* default rx filter setting */
 	rtwdev->hal.rcr = BIT_APP_FCS | BIT_APP_MIC | BIT_APP_ICV |
-			  BIT_HTC_LOC_CTRL | BIT_APP_PHYSTS |
+			  BIT_PKTCTL_DLEN | BIT_HTC_LOC_CTRL | BIT_APP_PHYSTS |
 			  BIT_AB | BIT_AM | BIT_APM;
 
 	ret = rtw_load_firmware(rtwdev, RTW_NORMAL_FW);
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.h b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
index bd01e82b6bcd0..8d1e8ff71d7ef 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.h
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.h
@@ -131,7 +131,7 @@ _rtw_write32s_mask(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 data)
 #define WLAN_TX_FUNC_CFG2		0x30
 #define WLAN_MAC_OPT_NORM_FUNC1		0x98
 #define WLAN_MAC_OPT_LB_FUNC1		0x80
-#define WLAN_MAC_OPT_FUNC2		0x30810041
+#define WLAN_MAC_OPT_FUNC2		0xb0810041
 
 #define WLAN_SIFS_CFG	(WLAN_SIFS_CCK_CONT_TX | \
 			(WLAN_SIFS_OFDM_CONT_TX << BIT_SHIFT_SIFS_OFDM_CTX) | \
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index 22d0dd640ac94..dbfd67c3f598c 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -204,7 +204,7 @@ static void rtw8822b_phy_set_param(struct rtw_dev *rtwdev)
 #define WLAN_TX_FUNC_CFG2		0x30
 #define WLAN_MAC_OPT_NORM_FUNC1		0x98
 #define WLAN_MAC_OPT_LB_FUNC1		0x80
-#define WLAN_MAC_OPT_FUNC2		0x30810041
+#define WLAN_MAC_OPT_FUNC2		0xb0810041
 
 #define WLAN_SIFS_CFG	(WLAN_SIFS_CCK_CONT_TX | \
 			(WLAN_SIFS_OFDM_CONT_TX << BIT_SHIFT_SIFS_OFDM_CTX) | \
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 79ad6232dce83..cee586335552d 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -1248,7 +1248,7 @@ static void rtw8822c_phy_set_param(struct rtw_dev *rtwdev)
 #define WLAN_TX_FUNC_CFG2		0x30
 #define WLAN_MAC_OPT_NORM_FUNC1		0x98
 #define WLAN_MAC_OPT_LB_FUNC1		0x80
-#define WLAN_MAC_OPT_FUNC2		0x30810041
+#define WLAN_MAC_OPT_FUNC2		0xb0810041
 #define WLAN_MAC_INT_MIG_CFG		0x33330000
 
 #define WLAN_SIFS_CFG	(WLAN_SIFS_CCK_CONT_TX | \
-- 
GitLab


From 81d2e96ababb7147206f6960e9aac66e6afb87f1 Mon Sep 17 00:00:00 2001
From: Changcheng Deng <deng.changcheng@zte.com.cn>
Date: Thu, 25 Nov 2021 01:43:11 +0000
Subject: [PATCH 3241/4878] PM: AVS: qcom-cpr: Use div64_ul instead of do_div

[ Upstream commit 92c550f9ffd2884bb5def52b5c0485a35e452784 ]

do_div() does a 64-by-32 division. Here the divisor is an unsigned long
which on some platforms is 64 bit wide. So use div64_ul instead of do_div
to avoid a possible truncation.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211125014311.45942-1-deng.changcheng@zte.com.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/qcom/cpr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/cpr.c b/drivers/soc/qcom/cpr.c
index b24cc77d1889f..6298561bc29c9 100644
--- a/drivers/soc/qcom/cpr.c
+++ b/drivers/soc/qcom/cpr.c
@@ -1043,7 +1043,7 @@ static int cpr_interpolate(const struct corner *corner, int step_volt,
 		return corner->uV;
 
 	temp = f_diff * (uV_high - uV_low);
-	do_div(temp, f_high - f_low);
+	temp = div64_ul(temp, f_high - f_low);
 
 	/*
 	 * max_volt_scale has units of uV/MHz while freq values
-- 
GitLab


From febab6b60d61d13cd9f30a2991deea56df39567d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 10 Dec 2021 11:12:42 +0200
Subject: [PATCH 3242/4878] iwlwifi: fix leaks/bad data after failed firmware
 load

[ Upstream commit ab07506b0454bea606095951e19e72c282bfbb42 ]

If firmware load fails after having loaded some parts of the
firmware, e.g. the IML image, then this would leak. For the
host command list we'd end up running into a WARN on the next
attempt to load another firmware image.

Fix this by calling iwl_dealloc_ucode() on failures, and make
that also clear the data so we start fresh on the next round.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211210110539.1f742f0eb58a.I1315f22f6aa632d94ae2069f85e1bca5e734dce0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index be214f39f52be..4bdfd6afa7324 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -185,6 +185,9 @@ static void iwl_dealloc_ucode(struct iwl_drv *drv)
 
 	for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 		iwl_free_fw_img(drv, drv->fw.img + i);
+
+	/* clear the data for the aborted load case */
+	memset(&drv->fw, 0, sizeof(drv->fw));
 }
 
 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
@@ -1365,6 +1368,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 	int i;
 	bool load_module = false;
 	bool usniffer_images = false;
+	bool failure = true;
 
 	fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
 	fw->ucode_capa.standard_phy_calibration_size =
@@ -1634,6 +1638,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 				op->name, err);
 #endif
 	}
+	failure = false;
 	goto free;
 
  try_again:
@@ -1649,6 +1654,9 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 	complete(&drv->request_firmware_complete);
 	device_release_driver(drv->trans->dev);
  free:
+	if (failure)
+		iwl_dealloc_ucode(drv);
+
 	if (pieces) {
 		for (i = 0; i < ARRAY_SIZE(pieces->img); i++)
 			kfree(pieces->img[i].sec);
-- 
GitLab


From 6e44b600543c70f9368d5da90f2e1c97eeb0fdf8 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 10 Dec 2021 11:12:45 +0200
Subject: [PATCH 3243/4878] iwlwifi: remove module loading failure message

[ Upstream commit 6518f83ffa51131daaf439b66094f684da3fb0ae ]

When CONFIG_DEBUG_TEST_DRIVER_REMOVE is set, iwlwifi crashes
when the opmode module cannot be loaded, due to completing
the completion before using drv->dev, which can then already
be freed.

Fix this by removing the (fairly useless) message. Moving the
completion later causes a deadlock instead, so that's not an
option.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20211210091245.289008-2-luca@coelho.fi
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 4bdfd6afa7324..30c6d7b18599a 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1629,15 +1629,8 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
 	 * else from proceeding if the module fails to load
 	 * or hangs loading.
 	 */
-	if (load_module) {
+	if (load_module)
 		request_module("%s", op->name);
-#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
-		if (err)
-			IWL_ERR(drv,
-				"failed to load module %s (error %d), is dynamic loading enabled?\n",
-				op->name, err);
-#endif
-	}
 	failure = false;
 	goto free;
 
-- 
GitLab


From f266e1c5bf88610cb20d281a5e14749b23478f1b Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Sun, 19 Dec 2021 12:18:16 +0200
Subject: [PATCH 3244/4878] iwlwifi: mvm: Fix calculation of frame length

[ Upstream commit 40a0b38d7a7f91a6027287e0df54f5f547e8d27e ]

The RADA might include in the Rx frame the MIC and CRC bytes.
These bytes should be removed for non monitor interfaces and
should not be passed to mac80211.

Fix the Rx processing to remove the extra bytes on non monitor
cases.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219121514.098be12c801e.I1d81733d8a75b84c3b20eb6e0d14ab3405ca6a86@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 838734fec5023..86b3fb321dfdd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -177,12 +177,39 @@ static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
 	unsigned int headlen, fraglen, pad_len = 0;
 	unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
+	u8 mic_crc_len = u8_get_bits(desc->mac_flags1,
+				     IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_MASK) << 1;
 
 	if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
 		len -= 2;
 		pad_len = 2;
 	}
 
+	/*
+	 * For non monitor interface strip the bytes the RADA might not have
+	 * removed. As monitor interface cannot exist with other interfaces
+	 * this removal is safe.
+	 */
+	if (mic_crc_len && !ieee80211_hw_check(mvm->hw, RX_INCLUDES_FCS)) {
+		u32 pkt_flags = le32_to_cpu(pkt->len_n_flags);
+
+		/*
+		 * If RADA was not enabled then decryption was not performed so
+		 * the MIC cannot be removed.
+		 */
+		if (!(pkt_flags & FH_RSCSR_RADA_EN)) {
+			if (WARN_ON(crypt_len > mic_crc_len))
+				return -EINVAL;
+
+			mic_crc_len -= crypt_len;
+		}
+
+		if (WARN_ON(mic_crc_len > len))
+			return -EINVAL;
+
+		len -= mic_crc_len;
+	}
+
 	/* If frame is small enough to fit in skb->head, pull it completely.
 	 * If not, only pull ieee80211_hdr (including crypto if present, and
 	 * an additional 8 bytes for SNAP/ethertype, see below) so that
-- 
GitLab


From d817d10f7a002cd797ec460881a229768140451d Mon Sep 17 00:00:00 2001
From: Luca Coelho <luciano.coelho@intel.com>
Date: Sun, 19 Dec 2021 13:28:34 +0200
Subject: [PATCH 3245/4878] iwlwifi: pcie: make sure prph_info is set when
 treating wakeup IRQ

[ Upstream commit 459fc0f2c6b0f6e280bfa0f230c100c9dfe3a199 ]

In some rare cases when the HW is in a bad state, we may get this
interrupt when prph_info is not set yet.  Then we will try to
dereference it to check the sleep_notif element, which will cause an
oops.

Fix that by ignoring the interrupt if prph_info is not set yet.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211219132536.0537aa562313.I183bb336345b9b3da196ba9e596a6f189fbcbd09@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index 2c13fa8f28200..6aedf5762571d 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -2260,7 +2260,12 @@ irqreturn_t iwl_pcie_irq_msix_handler(int irq, void *dev_id)
 		}
 	}
 
-	if (inta_hw & MSIX_HW_INT_CAUSES_REG_WAKEUP) {
+	/*
+	 * In some rare cases when the HW is in a bad state, we may
+	 * get this interrupt too early, when prph_info is still NULL.
+	 * So make sure that it's not NULL to prevent crashing.
+	 */
+	if (inta_hw & MSIX_HW_INT_CAUSES_REG_WAKEUP && trans_pcie->prph_info) {
 		u32 sleep_notif =
 			le32_to_cpu(trans_pcie->prph_info->sleep_notif);
 		if (sleep_notif == IWL_D3_SLEEP_STATUS_SUSPEND ||
-- 
GitLab


From 756a7188b277f10b807e6e7321ccf8b929cc6e4a Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 12 Sep 2021 23:12:52 -0700
Subject: [PATCH 3246/4878] um: registers: Rename function names to avoid
 conflicts and build problems

[ Upstream commit 077b7320942b64b0da182aefd83c374462a65535 ]

The function names init_registers() and restore_registers() are used
in several net/ethernet/ and gpu/drm/ drivers for other purposes (not
calls to UML functions), so rename them.

This fixes multiple build errors.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: linux-um@lists.infradead.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/um/include/shared/registers.h | 4 ++--
 arch/um/os-Linux/registers.c       | 4 ++--
 arch/um/os-Linux/start_up.c        | 2 +-
 arch/x86/um/syscalls_64.c          | 3 ++-
 4 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/um/include/shared/registers.h b/arch/um/include/shared/registers.h
index 0c50fa6e8a55b..fbb709a222839 100644
--- a/arch/um/include/shared/registers.h
+++ b/arch/um/include/shared/registers.h
@@ -16,8 +16,8 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs);
 extern int save_fpx_registers(int pid, unsigned long *fp_regs);
 extern int restore_fpx_registers(int pid, unsigned long *fp_regs);
 extern int save_registers(int pid, struct uml_pt_regs *regs);
-extern int restore_registers(int pid, struct uml_pt_regs *regs);
-extern int init_registers(int pid);
+extern int restore_pid_registers(int pid, struct uml_pt_regs *regs);
+extern int init_pid_registers(int pid);
 extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs);
 extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
 extern int get_fp_registers(int pid, unsigned long *regs);
diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c
index 2d9270508e156..b123955be7acc 100644
--- a/arch/um/os-Linux/registers.c
+++ b/arch/um/os-Linux/registers.c
@@ -21,7 +21,7 @@ int save_registers(int pid, struct uml_pt_regs *regs)
 	return 0;
 }
 
-int restore_registers(int pid, struct uml_pt_regs *regs)
+int restore_pid_registers(int pid, struct uml_pt_regs *regs)
 {
 	int err;
 
@@ -36,7 +36,7 @@ int restore_registers(int pid, struct uml_pt_regs *regs)
 static unsigned long exec_regs[MAX_REG_NR];
 static unsigned long exec_fp_regs[FP_SIZE];
 
-int init_registers(int pid)
+int init_pid_registers(int pid)
 {
 	int err;
 
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index f79dc338279e6..b28373a2b8d2d 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -336,7 +336,7 @@ void __init os_early_checks(void)
 	check_tmpexec();
 
 	pid = start_ptraced_child();
-	if (init_registers(pid))
+	if (init_pid_registers(pid))
 		fatal("Failed to initialize default registers");
 	stop_ptraced_child(pid, 1, 1);
 }
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index 58f51667e2e4b..8249685b40960 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -11,6 +11,7 @@
 #include <linux/uaccess.h>
 #include <asm/prctl.h> /* XXX This should get the constants from libc */
 #include <os.h>
+#include <registers.h>
 
 long arch_prctl(struct task_struct *task, int option,
 		unsigned long __user *arg2)
@@ -35,7 +36,7 @@ long arch_prctl(struct task_struct *task, int option,
 	switch (option) {
 	case ARCH_SET_FS:
 	case ARCH_SET_GS:
-		ret = restore_registers(pid, &current->thread.regs.regs);
+		ret = restore_pid_registers(pid, &current->thread.regs.regs);
 		if (ret)
 			return ret;
 		break;
-- 
GitLab


From 6ac117edac18b21d9104a8480838c9d6783e59ba Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Thu, 3 Sep 2020 12:52:54 -0700
Subject: [PATCH 3247/4878] ath11k: Fix napi related hang

[ Upstream commit d943fdad7589653065be0e20aadc6dff37725ed4 ]

Similar to the same bug in ath10k, a napi disable w/out it being enabled
will hang forever.  I believe I saw this while trying rmmod after driver
had some failure on startup.  Fix it by keeping state on whether napi is
enabled or not.

And, remove un-used napi pointer in ath11k driver base struct.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20200903195254.29379-1-greearb@candelatech.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath11k/ahb.c  | 12 +++++++++---
 drivers/net/wireless/ath/ath11k/core.h |  2 +-
 drivers/net/wireless/ath/ath11k/pci.c  | 12 +++++++++---
 3 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/ahb.c b/drivers/net/wireless/ath/ath11k/ahb.c
index e8cca58e18ffc..9ff6e68533142 100644
--- a/drivers/net/wireless/ath/ath11k/ahb.c
+++ b/drivers/net/wireless/ath/ath11k/ahb.c
@@ -175,8 +175,11 @@ static void __ath11k_ahb_ext_irq_disable(struct ath11k_base *ab)
 
 		ath11k_ahb_ext_grp_disable(irq_grp);
 
-		napi_synchronize(&irq_grp->napi);
-		napi_disable(&irq_grp->napi);
+		if (irq_grp->napi_enabled) {
+			napi_synchronize(&irq_grp->napi);
+			napi_disable(&irq_grp->napi);
+			irq_grp->napi_enabled = false;
+		}
 	}
 }
 
@@ -300,7 +303,10 @@ static void ath11k_ahb_ext_irq_enable(struct ath11k_base *ab)
 	for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
 		struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
 
-		napi_enable(&irq_grp->napi);
+		if (!irq_grp->napi_enabled) {
+			napi_enable(&irq_grp->napi);
+			irq_grp->napi_enabled = true;
+		}
 		ath11k_ahb_ext_grp_enable(irq_grp);
 	}
 }
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index c8e36251068c9..d2f2898d17b49 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -124,6 +124,7 @@ struct ath11k_ext_irq_grp {
 	u32 num_irq;
 	u32 grp_id;
 	u64 timestamp;
+	bool napi_enabled;
 	struct napi_struct napi;
 	struct net_device napi_ndev;
 };
@@ -687,7 +688,6 @@ struct ath11k_base {
 	u32 wlan_init_status;
 	int irq_num[ATH11K_IRQ_NUM_MAX];
 	struct ath11k_ext_irq_grp ext_irq_grp[ATH11K_EXT_IRQ_GRP_NUM_MAX];
-	struct napi_struct *napi;
 	struct ath11k_targ_cap target_caps;
 	u32 ext_service_bitmap[WMI_SERVICE_EXT_BM_SIZE];
 	bool pdevs_macaddr_valid;
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index d7eb6b7160bb4..105e344240c10 100644
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -416,8 +416,11 @@ static void __ath11k_pci_ext_irq_disable(struct ath11k_base *sc)
 
 		ath11k_pci_ext_grp_disable(irq_grp);
 
-		napi_synchronize(&irq_grp->napi);
-		napi_disable(&irq_grp->napi);
+		if (irq_grp->napi_enabled) {
+			napi_synchronize(&irq_grp->napi);
+			napi_disable(&irq_grp->napi);
+			irq_grp->napi_enabled = false;
+		}
 	}
 }
 
@@ -436,7 +439,10 @@ static void ath11k_pci_ext_irq_enable(struct ath11k_base *ab)
 	for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
 		struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
 
-		napi_enable(&irq_grp->napi);
+		if (!irq_grp->napi_enabled) {
+			napi_enable(&irq_grp->napi);
+			irq_grp->napi_enabled = true;
+		}
 		ath11k_pci_ext_grp_enable(irq_grp);
 	}
 }
-- 
GitLab


From 0b7beb2fea8f16f59f818336f162014e7be6e835 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Wed, 22 Dec 2021 12:22:01 -0800
Subject: [PATCH 3248/4878] Bluetooth: vhci: Set HCI_QUIRK_VALID_LE_STATES

[ Upstream commit cfb4c313be670fd4bd09650216620fa4514cdb93 ]

This set HCI_QUIRK_VALID_LE_STATES quirk which is required for the likes
of experimental LE simultaneous roles.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bluetooth/hci_vhci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 8ab26dec5f6e8..8469f9876dd26 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -121,6 +121,8 @@ static int __vhci_create_device(struct vhci_data *data, __u8 opcode)
 	if (opcode & 0x80)
 		set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
 
+	set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
+
 	if (hci_register_dev(hdev) < 0) {
 		BT_ERR("Can't register HCI device");
 		hci_free_dev(hdev);
-- 
GitLab


From a0b13335a342c9083640ba0ea6fe7c8d8076cae7 Mon Sep 17 00:00:00 2001
From: Antony Antony <antony.antony@secunet.com>
Date: Wed, 22 Dec 2021 14:11:18 +0100
Subject: [PATCH 3249/4878] xfrm: rate limit SA mapping change message to user
 space

[ Upstream commit 4e484b3e969b52effd95c17f7a86f39208b2ccf4 ]

Kernel generates mapping change message, XFRM_MSG_MAPPING,
when a source port chage is detected on a input state with UDP
encapsulation set.  Kernel generates a message for each IPsec packet
with new source port.  For a high speed flow per packet mapping change
message can be excessive, and can overload the user space listener.

Introduce rate limiting for XFRM_MSG_MAPPING message to the user space.

The rate limiting is configurable via netlink, when adding a new SA or
updating it. Use the new attribute XFRMA_MTIMER_THRESH in seconds.

v1->v2 change:
	update xfrm_sa_len()

v2->v3 changes:
	use u32 insted unsigned long to reduce size of struct xfrm_state
	fix xfrm_ompat size Reported-by: kernel test robot <lkp@intel.com>
	accept XFRM_MSG_MAPPING only when XFRMA_ENCAP is present

Co-developed-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/xfrm.h        |  5 +++++
 include/uapi/linux/xfrm.h |  1 +
 net/xfrm/xfrm_compat.c    |  6 ++++--
 net/xfrm/xfrm_state.c     | 23 ++++++++++++++++++++++-
 net/xfrm/xfrm_user.c      | 18 +++++++++++++++++-
 5 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 6232a5f048bde..337d29875e518 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -193,6 +193,11 @@ struct xfrm_state {
 	struct xfrm_algo_aead	*aead;
 	const char		*geniv;
 
+	/* mapping change rate limiting */
+	__be16 new_mapping_sport;
+	u32 new_mapping;	/* seconds */
+	u32 mapping_maxage;	/* seconds for input SA */
+
 	/* Data for encapsulator */
 	struct xfrm_encap_tmpl	*encap;
 	struct sock __rcu	*encap_sk;
diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index ffc6a5391bb7b..2290c98b47cf8 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -308,6 +308,7 @@ enum xfrm_attr_type_t {
 	XFRMA_SET_MARK,		/* __u32 */
 	XFRMA_SET_MARK_MASK,	/* __u32 */
 	XFRMA_IF_ID,		/* __u32 */
+	XFRMA_MTIMER_THRESH,	/* __u32 in seconds for input SA */
 	__XFRMA_MAX
 
 #define XFRMA_OUTPUT_MARK XFRMA_SET_MARK	/* Compatibility */
diff --git a/net/xfrm/xfrm_compat.c b/net/xfrm/xfrm_compat.c
index 2bf2693901631..a0f62fa02e06e 100644
--- a/net/xfrm/xfrm_compat.c
+++ b/net/xfrm/xfrm_compat.c
@@ -127,6 +127,7 @@ static const struct nla_policy compat_policy[XFRMA_MAX+1] = {
 	[XFRMA_SET_MARK]	= { .type = NLA_U32 },
 	[XFRMA_SET_MARK_MASK]	= { .type = NLA_U32 },
 	[XFRMA_IF_ID]		= { .type = NLA_U32 },
+	[XFRMA_MTIMER_THRESH]	= { .type = NLA_U32 },
 };
 
 static struct nlmsghdr *xfrm_nlmsg_put_compat(struct sk_buff *skb,
@@ -274,9 +275,10 @@ static int xfrm_xlate64_attr(struct sk_buff *dst, const struct nlattr *src)
 	case XFRMA_SET_MARK:
 	case XFRMA_SET_MARK_MASK:
 	case XFRMA_IF_ID:
+	case XFRMA_MTIMER_THRESH:
 		return xfrm_nla_cpy(dst, src, nla_len(src));
 	default:
-		BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
+		BUILD_BUG_ON(XFRMA_MAX != XFRMA_MTIMER_THRESH);
 		pr_warn_once("unsupported nla_type %d\n", src->nla_type);
 		return -EOPNOTSUPP;
 	}
@@ -431,7 +433,7 @@ static int xfrm_xlate32_attr(void *dst, const struct nlattr *nla,
 	int err;
 
 	if (type > XFRMA_MAX) {
-		BUILD_BUG_ON(XFRMA_MAX != XFRMA_IF_ID);
+		BUILD_BUG_ON(XFRMA_MAX != XFRMA_MTIMER_THRESH);
 		NL_SET_ERR_MSG(extack, "Bad attribute");
 		return -EOPNOTSUPP;
 	}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index c158e70e8ae10..65e2805fa113a 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1557,6 +1557,9 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
 	x->km.seq = orig->km.seq;
 	x->replay = orig->replay;
 	x->preplay = orig->preplay;
+	x->mapping_maxage = orig->mapping_maxage;
+	x->new_mapping = 0;
+	x->new_mapping_sport = 0;
 
 	return x;
 
@@ -2208,7 +2211,7 @@ int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol)
 }
 EXPORT_SYMBOL(km_query);
 
-int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
+static int __km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
 {
 	int err = -EINVAL;
 	struct xfrm_mgr *km;
@@ -2223,6 +2226,24 @@ int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
 	rcu_read_unlock();
 	return err;
 }
+
+int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport)
+{
+	int ret = 0;
+
+	if (x->mapping_maxage) {
+		if ((jiffies / HZ - x->new_mapping) > x->mapping_maxage ||
+		    x->new_mapping_sport != sport) {
+			x->new_mapping_sport = sport;
+			x->new_mapping = jiffies / HZ;
+			ret = __km_new_mapping(x, ipaddr, sport);
+		}
+	} else {
+		ret = __km_new_mapping(x, ipaddr, sport);
+	}
+
+	return ret;
+}
 EXPORT_SYMBOL(km_new_mapping);
 
 void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 portid)
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index ddf1b3a5f7c1f..d0fdfbf4c5f72 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -282,6 +282,10 @@ static int verify_newsa_info(struct xfrm_usersa_info *p,
 
 	err = 0;
 
+	if (attrs[XFRMA_MTIMER_THRESH])
+		if (!attrs[XFRMA_ENCAP])
+			err = -EINVAL;
+
 out:
 	return err;
 }
@@ -521,6 +525,7 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs,
 	struct nlattr *lt = attrs[XFRMA_LTIME_VAL];
 	struct nlattr *et = attrs[XFRMA_ETIMER_THRESH];
 	struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH];
+	struct nlattr *mt = attrs[XFRMA_MTIMER_THRESH];
 
 	if (re) {
 		struct xfrm_replay_state_esn *replay_esn;
@@ -552,6 +557,9 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs,
 
 	if (rt)
 		x->replay_maxdiff = nla_get_u32(rt);
+
+	if (mt)
+		x->mapping_maxage = nla_get_u32(mt);
 }
 
 static void xfrm_smark_init(struct nlattr **attrs, struct xfrm_mark *m)
@@ -969,8 +977,13 @@ static int copy_to_user_state_extra(struct xfrm_state *x,
 		if (ret)
 			goto out;
 	}
-	if (x->security)
+	if (x->security) {
 		ret = copy_sec_ctx(x->security, skb);
+		if (ret)
+			goto out;
+	}
+	if (x->mapping_maxage)
+		ret = nla_put_u32(skb, XFRMA_MTIMER_THRESH, x->mapping_maxage);
 out:
 	return ret;
 }
@@ -2924,6 +2937,9 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
 	/* Must count x->lastused as it may become non-zero behind our back. */
 	l += nla_total_size_64bit(sizeof(u64));
 
+	if (x->mapping_maxage)
+		l += nla_total_size(sizeof(x->mapping_maxage));
+
 	return l;
 }
 
-- 
GitLab


From e35cb5b122fcdce50690916a241e2ef4cef736a7 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Wed, 22 Dec 2021 01:17:28 +0100
Subject: [PATCH 3250/4878] drm/etnaviv: consider completed fence seqno in hang
 check

[ Upstream commit cdd156955f946beaa5f3a00d8ccf90e5a197becc ]

Some GPU heavy test programs manage to trigger the hangcheck quite often.
If there are no other GPU users in the system and the test program
exhibits a very regular structure in the commandstreams that are being
submitted, we can end up with two distinct submits managing to trigger
the hangcheck with the FE in a very similar address range. This leads
the hangcheck to believe that the GPU is stuck, while in reality the GPU
is already busy working on a different job. To avoid those spurious
GPU resets, also remember and consider the last completed fence seqno
in the hang check.

Reported-by: Joerg Albert <joerg.albert@iav.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.h   | 1 +
 drivers/gpu/drm/etnaviv/etnaviv_sched.c | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
index 1c75c8ed5bcea..85eddd492774d 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -130,6 +130,7 @@ struct etnaviv_gpu {
 
 	/* hang detection */
 	u32 hangcheck_dma_addr;
+	u32 hangcheck_fence;
 
 	void __iomem *mmio;
 	int irq;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_sched.c b/drivers/gpu/drm/etnaviv/etnaviv_sched.c
index cd46c882269cc..026b6c0731198 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_sched.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_sched.c
@@ -106,8 +106,10 @@ static void etnaviv_sched_timedout_job(struct drm_sched_job *sched_job)
 	 */
 	dma_addr = gpu_read(gpu, VIVS_FE_DMA_ADDRESS);
 	change = dma_addr - gpu->hangcheck_dma_addr;
-	if (change < 0 || change > 16) {
+	if (gpu->completed_fence != gpu->hangcheck_fence ||
+	    change < 0 || change > 16) {
 		gpu->hangcheck_dma_addr = dma_addr;
+		gpu->hangcheck_fence = gpu->completed_fence;
 		goto out_no_timeout;
 	}
 
-- 
GitLab


From e3a51d6c90a8f909009342b0bb3a98f316c003b1 Mon Sep 17 00:00:00 2001
From: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>
Date: Tue, 4 Jul 2017 16:22:38 +1200
Subject: [PATCH 3251/4878] jffs2: GC deadlock reading a page that is used in
 jffs2_write_begin()

[ Upstream commit aa39cc675799bc92da153af9a13d6f969c348e82 ]

GC task can deadlock in read_cache_page() because it may attempt
to release a page that is actually allocated by another task in
jffs2_write_begin().
The reason is that in jffs2_write_begin() there is a small window
a cache page is allocated for use but not set Uptodate yet.

This ends up with a deadlock between two tasks:
1) A task (e.g. file copy)
   - jffs2_write_begin() locks a cache page
   - jffs2_write_end() tries to lock "alloc_sem" from
	 jffs2_reserve_space() <-- STUCK
2) GC task (jffs2_gcd_mtd3)
   - jffs2_garbage_collect_pass() locks "alloc_sem"
   - try to lock the same cache page in read_cache_page() <-- STUCK

So to avoid this deadlock, hold "alloc_sem" in jffs2_write_begin()
while reading data in a cache page.

Signed-off-by: Kyeong Yoo <kyeong.yoo@alliedtelesis.co.nz>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/jffs2/file.c | 40 +++++++++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 4fc8cd698d1a4..bd7d58d27bfc6 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -136,20 +136,15 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
 	struct page *pg;
 	struct inode *inode = mapping->host;
 	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 	pgoff_t index = pos >> PAGE_SHIFT;
 	uint32_t pageofs = index << PAGE_SHIFT;
 	int ret = 0;
 
-	pg = grab_cache_page_write_begin(mapping, index, flags);
-	if (!pg)
-		return -ENOMEM;
-	*pagep = pg;
-
 	jffs2_dbg(1, "%s()\n", __func__);
 
 	if (pageofs > inode->i_size) {
 		/* Make new hole frag from old EOF to new page */
-		struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 		struct jffs2_raw_inode ri;
 		struct jffs2_full_dnode *fn;
 		uint32_t alloc_len;
@@ -160,7 +155,7 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
 		ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
 					  ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
 		if (ret)
-			goto out_page;
+			goto out_err;
 
 		mutex_lock(&f->sem);
 		memset(&ri, 0, sizeof(ri));
@@ -190,7 +185,7 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
 			ret = PTR_ERR(fn);
 			jffs2_complete_reservation(c);
 			mutex_unlock(&f->sem);
-			goto out_page;
+			goto out_err;
 		}
 		ret = jffs2_add_full_dnode_to_inode(c, f, fn);
 		if (f->metadata) {
@@ -205,13 +200,26 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
 			jffs2_free_full_dnode(fn);
 			jffs2_complete_reservation(c);
 			mutex_unlock(&f->sem);
-			goto out_page;
+			goto out_err;
 		}
 		jffs2_complete_reservation(c);
 		inode->i_size = pageofs;
 		mutex_unlock(&f->sem);
 	}
 
+	/*
+	 * While getting a page and reading data in, lock c->alloc_sem until
+	 * the page is Uptodate. Otherwise GC task may attempt to read the same
+	 * page in read_cache_page(), which causes a deadlock.
+	 */
+	mutex_lock(&c->alloc_sem);
+	pg = grab_cache_page_write_begin(mapping, index, flags);
+	if (!pg) {
+		ret = -ENOMEM;
+		goto release_sem;
+	}
+	*pagep = pg;
+
 	/*
 	 * Read in the page if it wasn't already present. Cannot optimize away
 	 * the whole page write case until jffs2_write_end can handle the
@@ -221,15 +229,17 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
 		mutex_lock(&f->sem);
 		ret = jffs2_do_readpage_nolock(inode, pg);
 		mutex_unlock(&f->sem);
-		if (ret)
-			goto out_page;
+		if (ret) {
+			unlock_page(pg);
+			put_page(pg);
+			goto release_sem;
+		}
 	}
 	jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags);
-	return ret;
 
-out_page:
-	unlock_page(pg);
-	put_page(pg);
+release_sem:
+	mutex_unlock(&c->alloc_sem);
+out_err:
 	return ret;
 }
 
-- 
GitLab


From fcfd8282c5d2fa335455a33c18d4426c58b80f72 Mon Sep 17 00:00:00 2001
From: Mark Langsdorf <mlangsdo@redhat.com>
Date: Wed, 22 Dec 2021 16:57:34 +0100
Subject: [PATCH 3252/4878] ACPICA: actypes.h: Expand the ACPI_ACCESS_
 definitions

[ Upstream commit f81bdeaf816142e0729eea0cc84c395ec9673151 ]

ACPICA commit bc02c76d518135531483dfc276ed28b7ee632ce1

The current ACPI_ACCESS_*_WIDTH defines do not provide a way to
test that size is small enough to not cause an overflow when
applied to a 32-bit integer.

Rather than adding more magic numbers, add ACPI_ACCESS_*_SHIFT,
ACPI_ACCESS_*_MAX, and ACPI_ACCESS_*_DEFAULT #defines and
redefine ACPI_ACCESS_*_WIDTH in terms of the new #defines.

This was inititally reported on Linux where a size of 102 in
ACPI_ACCESS_BIT_WIDTH caused an overflow error in the SPCR
initialization code.

Link: https://github.com/acpica/acpica/commit/bc02c76d
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/acpi/actypes.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 647cb11d0a0a3..7334037624c5c 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -536,8 +536,14 @@ typedef u64 acpi_integer;
  * Can be used with access_width of struct acpi_generic_address and access_size of
  * struct acpi_resource_generic_register.
  */
-#define ACPI_ACCESS_BIT_WIDTH(size)     (1 << ((size) + 2))
-#define ACPI_ACCESS_BYTE_WIDTH(size)    (1 << ((size) - 1))
+#define ACPI_ACCESS_BIT_SHIFT		2
+#define ACPI_ACCESS_BYTE_SHIFT		-1
+#define ACPI_ACCESS_BIT_MAX		(31 - ACPI_ACCESS_BIT_SHIFT)
+#define ACPI_ACCESS_BYTE_MAX		(31 - ACPI_ACCESS_BYTE_SHIFT)
+#define ACPI_ACCESS_BIT_DEFAULT		(8 - ACPI_ACCESS_BIT_SHIFT)
+#define ACPI_ACCESS_BYTE_DEFAULT	(8 - ACPI_ACCESS_BYTE_SHIFT)
+#define ACPI_ACCESS_BIT_WIDTH(size)	(1 << ((size) + ACPI_ACCESS_BIT_SHIFT))
+#define ACPI_ACCESS_BYTE_WIDTH(size)	(1 << ((size) + ACPI_ACCESS_BYTE_SHIFT))
 
 /*******************************************************************************
  *
-- 
GitLab


From 8ea9216d20b78b0993ee3e25c5f9d6807657967e Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 22 Dec 2021 17:29:45 +0100
Subject: [PATCH 3253/4878] ACPICA: Utilities: Avoid deleting the same object
 twice in a row

[ Upstream commit 1cdfe9e346b4c5509ffe19ccde880fd259d9f7a3 ]

ACPICA commit c11af67d8f7e3d381068ce7771322f2b5324d687

If original_count is 0 in acpi_ut_update_ref_count (),
acpi_ut_delete_internal_obj () is invoked for the target object, which is
incorrect, because that object has been deleted once already and the
memory allocated to store it may have been reclaimed and allocated
for a different purpose by the host OS.  Moreover, a confusing debug
message following the "Reference Count is already zero, cannot
decrement" warning is printed in that case.

To fix this issue, make acpi_ut_update_ref_count () return after finding
that original_count is 0 and printing the above warning.

Link: https://github.com/acpica/acpica/commit/c11af67d
Link: https://github.com/acpica/acpica/pull/652
Reported-by: Mark Asselstine <mark.asselstine@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpica/utdelete.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index 72d2c0b656339..cb1750e7a6281 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -422,6 +422,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
 			ACPI_WARNING((AE_INFO,
 				      "Obj %p, Reference Count is already zero, cannot decrement\n",
 				      object));
+			return;
 		}
 
 		ACPI_DEBUG_PRINT_RAW((ACPI_DB_ALLOCATIONS,
-- 
GitLab


From e70be176961daaa06c0c3a7531c5f69add3675a1 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 22 Dec 2021 17:31:05 +0100
Subject: [PATCH 3254/4878] ACPICA: Executer: Fix the REFCLASS_REFOF case in
 acpi_ex_opcode_1A_0T_1R()

[ Upstream commit 24ea5f90ec9548044a6209685c5010edd66ffe8f ]

ACPICA commit d984f12041392fa4156b52e2f7e5c5e7bc38ad9e

If Operand[0] is a reference of the ACPI_REFCLASS_REFOF class,
acpi_ex_opcode_1A_0T_1R () calls acpi_ns_get_attached_object () to
obtain return_desc which may require additional resolution with
the help of acpi_ex_read_data_from_field (). If the latter fails,
the reference counter of the original return_desc is decremented
which is incorrect, because acpi_ns_get_attached_object () does not
increment the reference counter of the object returned by it.

This issue may lead to premature deletion of the attached object
while it is still attached and a use-after-free and crash in the
host OS.  For example, this may happen when on evaluation of ref_of()
a local region field where there is no registered handler for the
given Operation Region.

Fix it by making acpi_ex_opcode_1A_0T_1R () return Status right away
after a acpi_ex_read_data_from_field () failure.

Link: https://github.com/acpica/acpica/commit/d984f120
Link: https://github.com/acpica/acpica/pull/685
Reported-by: Lenny Szubowicz <lszubowi@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpica/exoparg1.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index a46d685a3ffcf..9d67dfd93d5b6 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -1007,7 +1007,8 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 						    (walk_state, return_desc,
 						     &temp_desc);
 						if (ACPI_FAILURE(status)) {
-							goto cleanup;
+							return_ACPI_STATUS
+							    (status);
 						}
 
 						return_desc = temp_desc;
-- 
GitLab


From 8544074762e2675f068617df5fcdeb1a1923f740 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Wed, 22 Dec 2021 17:31:54 +0100
Subject: [PATCH 3255/4878] ACPICA: Fix wrong interpretation of PCC address

[ Upstream commit 9a3b8655db1ada31c82189ae13f40eb25da48c35 ]

ACPICA commit 41be6afacfdaec2dba3a5ed368736babc2a7aa5c

With the PCC Opregion in the firmware and we are hitting below kernel crash:

-->8
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010
 Workqueue: pm pm_runtime_work
 pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : __memcpy+0x54/0x260
 lr : acpi_ex_write_data_to_field+0xb8/0x194
 Call trace:
  __memcpy+0x54/0x260
  acpi_ex_store_object_to_node+0xa4/0x1d4
  acpi_ex_store+0x44/0x164
  acpi_ex_opcode_1A_1T_1R+0x25c/0x508
  acpi_ds_exec_end_op+0x1b4/0x44c
  acpi_ps_parse_loop+0x3a8/0x614
  acpi_ps_parse_aml+0x90/0x2f4
  acpi_ps_execute_method+0x11c/0x19c
  acpi_ns_evaluate+0x1ec/0x2b0
  acpi_evaluate_object+0x170/0x2b0
  acpi_device_set_power+0x118/0x310
  acpi_dev_suspend+0xd4/0x180
  acpi_subsys_runtime_suspend+0x28/0x38
  __rpm_callback+0x74/0x328
  rpm_suspend+0x2d8/0x624
  pm_runtime_work+0xa4/0xb8
  process_one_work+0x194/0x25c
  worker_thread+0x260/0x49c
  kthread+0x14c/0x30c
  ret_from_fork+0x10/0x20
 Code: f9000006 f81f80a7 d65f03c0 361000c2 (b9400026)
 ---[ end trace 24d8a032fa77b68a ]---

The reason for the crash is that the PCC channel index passed via region.address
in acpi_ex_store_object_to_node is interpreted as the channel subtype
incorrectly.

Assuming the PCC op_region support is not used by any other type, let us
remove the subtype check as the AML has no access to the subtype information.
Once we remove it, the kernel crash disappears and correctly complains about
missing PCC Opregion handler.

ACPI Error: No handler for Region [PFRM] ((____ptrval____)) [PCC] (20210730/evregion-130)
ACPI Error: Region PCC (ID=10) has no handler (20210730/exfldio-261)
ACPI Error: Aborting method \_SB.ETH0._PS3 due to previous error (AE_NOT_EXIST) (20210730/psparse-531)

Link: https://github.com/acpica/acpica/commit/41be6afa
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpica/exfield.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index 3323a2ba6a313..b3230e511870a 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -326,12 +326,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		       obj_desc->field.base_byte_offset,
 		       source_desc->buffer.pointer, data_length);
 
-		if ((obj_desc->field.region_obj->region.address ==
-		     PCC_MASTER_SUBSPACE
-		     && MASTER_SUBSPACE_COMMAND(obj_desc->field.
-						base_byte_offset))
-		    || GENERIC_SUBSPACE_COMMAND(obj_desc->field.
-						base_byte_offset)) {
+		if (MASTER_SUBSPACE_COMMAND(obj_desc->field.base_byte_offset)) {
 
 			/* Perform the write */
 
-- 
GitLab


From ee88ff140de2b16543547aa40db32537bd29bae9 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Wed, 22 Dec 2021 17:33:51 +0100
Subject: [PATCH 3256/4878] ACPICA: Hardware: Do not flush CPU cache when
 entering S4 and S5

[ Upstream commit 1d4e0b3abb168b2ee1eca99c527cffa1b80b6161 ]

ACPICA commit 3dd7e1f3996456ef81bfe14cba29860e8d42949e

According to ACPI 6.4, Section 16.2, the CPU cache flushing is
required on entering to S1, S2, and S3, but the ACPICA code
flushes the CPU cache regardless of the sleep state.

Blind cache flush on entering S5 causes problems for TDX.

Flushing happens with WBINVD that is not supported in the TDX
environment.

TDX only supports S5 and adjusting ACPICA code to conform to the
spec more strictly fixes the issue.

Link: https://github.com/acpica/acpica/commit/3dd7e1f3
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpica/hwesleep.c  | 4 +++-
 drivers/acpi/acpica/hwsleep.c   | 4 +++-
 drivers/acpi/acpica/hwxfsleep.c | 2 --
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 4836a4b8b38b8..142a755be6881 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -104,7 +104,9 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 
 	/* Flush caches, as per ACPI specification */
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (sleep_state < ACPI_STATE_S4) {
+		ACPI_FLUSH_CPU_CACHE();
+	}
 
 	status = acpi_os_enter_sleep(sleep_state, sleep_control, 0);
 	if (status == AE_CTRL_TERMINATE) {
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index fcc84d196238a..6a20bb5059c1d 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -110,7 +110,9 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 
 	/* Flush caches, as per ACPI specification */
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (sleep_state < ACPI_STATE_S4) {
+		ACPI_FLUSH_CPU_CACHE();
+	}
 
 	status = acpi_os_enter_sleep(sleep_state, pm1a_control, pm1b_control);
 	if (status == AE_CTRL_TERMINATE) {
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index f1645d87864c3..3948c34d85830 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -162,8 +162,6 @@ acpi_status acpi_enter_sleep_state_s4bios(void)
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_FLUSH_CPU_CACHE();
-
 	status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
 				    (u32)acpi_gbl_FADT.s4_bios_request, 8);
 	if (ACPI_FAILURE(status)) {
-- 
GitLab


From 516e332d6fcebf7d69ba895acc974cd80e638458 Mon Sep 17 00:00:00 2001
From: Zongmin Zhou <zhouzongmin@kylinos.cn>
Date: Wed, 15 Dec 2021 17:23:37 +0800
Subject: [PATCH 3257/4878] drm/amdgpu: fixup bad vram size on gmc v8

[ Upstream commit 11544d77e3974924c5a9c8a8320b996a3e9b2f8b ]

Some boards(like RX550) seem to have garbage in the upper
16 bits of the vram size register.  Check for
this and clamp the size properly.  Fixes
boards reporting bogus amounts of vram.

after add this patch,the maximum GPU VRAM size is 64GB,
otherwise only 64GB vram size will be used.

Signed-off-by: Zongmin Zhou<zhouzongmin@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 9ab65ca7df777..873bc33912e23 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -524,10 +524,10 @@ static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
 static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 {
 	int r;
+	u32 tmp;
 
 	adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 	if (!adev->gmc.vram_width) {
-		u32 tmp;
 		int chansize, numchan;
 
 		/* Get VRAM informations */
@@ -571,8 +571,15 @@ static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 		adev->gmc.vram_width = numchan * chansize;
 	}
 	/* size in MB on si */
-	adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
-	adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
+	tmp = RREG32(mmCONFIG_MEMSIZE);
+	/* some boards may have garbage in the upper 16 bits */
+	if (tmp & 0xffff0000) {
+		DRM_INFO("Probable bad vram size: 0x%08x\n", tmp);
+		if (tmp & 0xffff)
+			tmp &= 0xffff;
+	}
+	adev->gmc.mc_vram_size = tmp * 1024ULL * 1024ULL;
+	adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
 
 	if (!(adev->flags & AMD_IS_APU)) {
 		r = amdgpu_device_resize_fb_bar(adev);
-- 
GitLab


From 7b6dc07c6e690e55a3ddce9588e2da9dd9085fb4 Mon Sep 17 00:00:00 2001
From: Marina Nikolic <Marina.Nikolic@amd.com>
Date: Tue, 14 Dec 2021 20:57:53 +0800
Subject: [PATCH 3258/4878] amdgpu/pm: Make sysfs pm attributes as read-only
 for VFs

[ Upstream commit 11c9cc95f818f0f187e9b579a7f136f532b42445 ]

== Description ==
Setting values of pm attributes through sysfs
should not be allowed in SRIOV mode.
These calls will not be processed by FW anyway,
but error handling on sysfs level should be improved.

== Changes ==
This patch prohibits performing of all set commands
in SRIOV mode on sysfs level.
It offers better error handling as calls that are
not allowed will not be propagated further.

== Test ==
Writing to any sysfs file in passthrough mode will succeed.
Writing to any sysfs file in ONEVF mode will yield error:
"calling process does not have sufficient permission to execute a command".

Signed-off-by: Marina Nikolic <Marina.Nikolic@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 9f383b9041d28..49109614510b8 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2098,6 +2098,12 @@ static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_
 		}
 	}
 
+	/* setting should not be allowed from VF */
+	if (amdgpu_sriov_vf(adev)) {
+		dev_attr->attr.mode &= ~S_IWUGO;
+		dev_attr->store = NULL;
+	}
+
 #undef DEVICE_ATTR_IS
 
 	return 0;
-- 
GitLab


From 44cbd2a16a07cbc02a4921853d9f17f1ffaaa97a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= <linux@weissschuh.net>
Date: Wed, 22 Dec 2021 22:20:14 +0100
Subject: [PATCH 3259/4878] ACPI: battery: Add the ThinkPad "Not Charging"
 quirk
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit e96c1197aca628f7d2480a1cc3214912b40b3414 ]

The EC/ACPI firmware on Lenovo ThinkPads used to report a status
of "Unknown" when the battery is between the charge start and
charge stop thresholds. On Windows, it reports "Not Charging"
so the quirk has been added to also report correctly.

Now the "status" attribute returns "Not Charging" when the
battery on ThinkPads is not physicaly charging.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/battery.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index e04352c1dc2ce..2376f57b3617a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -59,6 +59,7 @@ static int battery_bix_broken_package;
 static int battery_notification_delay_ms;
 static int battery_ac_is_broken;
 static int battery_check_pmic = 1;
+static int battery_quirk_notcharging;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -222,6 +223,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
 			val->intval = POWER_SUPPLY_STATUS_CHARGING;
 		else if (acpi_battery_is_charged(battery))
 			val->intval = POWER_SUPPLY_STATUS_FULL;
+		else if (battery_quirk_notcharging)
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		else
 			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
 		break;
@@ -1105,6 +1108,12 @@ battery_do_not_check_pmic_quirk(const struct dmi_system_id *d)
 	return 0;
 }
 
+static int __init battery_quirk_not_charging(const struct dmi_system_id *d)
+{
+	battery_quirk_notcharging = 1;
+	return 0;
+}
+
 static const struct dmi_system_id bat_dmi_table[] __initconst = {
 	{
 		/* NEC LZ750/LS */
@@ -1149,6 +1158,19 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
 		},
 	},
+	{
+		/*
+		 * On Lenovo ThinkPads the BIOS specification defines
+		 * a state when the bits for charging and discharging
+		 * are both set to 0. That state is "Not Charging".
+		 */
+		.callback = battery_quirk_not_charging,
+		.ident = "Lenovo ThinkPad",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad"),
+		},
+	},
 	{},
 };
 
-- 
GitLab


From 623c65bc733683baf5dd7c66fa0593d59965e84f Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 5 Nov 2021 16:45:34 -0400
Subject: [PATCH 3260/4878] btrfs: remove BUG_ON() in find_parent_nodes()

[ Upstream commit fcba0120edf88328524a4878d1d6f4ad39f2ec81 ]

We search for an extent entry with .offset = -1, which shouldn't be a
thing, but corruption happens.  Add an ASSERT() for the developers,
return -EUCLEAN for mortals.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/backref.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 6e447bdaf9ec8..8b471579e26e1 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1213,7 +1213,12 @@ again:
 	ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 0);
 	if (ret < 0)
 		goto out;
-	BUG_ON(ret == 0);
+	if (ret == 0) {
+		/* This shouldn't happen, indicates a bug or fs corruption. */
+		ASSERT(ret != 0);
+		ret = -EUCLEAN;
+		goto out;
+	}
 
 #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
 	if (trans && likely(trans->type != __TRANS_DUMMY) &&
-- 
GitLab


From 6b22c9824ddb65d9b32a0a68e3e8e03694f989d7 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Fri, 5 Nov 2021 16:45:35 -0400
Subject: [PATCH 3261/4878] btrfs: remove BUG_ON(!eie) in find_parent_nodes

[ Upstream commit 9f05c09d6baef789726346397438cca4ec43c3ee ]

If we're looking for leafs that point to a data extent we want to record
the extent items that point at our bytenr.  At this point we have the
reference and we know for a fact that this leaf should have a reference
to our bytenr.  However if there's some sort of corruption we may not
find any references to our leaf, and thus could end up with eie == NULL.
Replace this BUG_ON() with an ASSERT() and then return -EUCLEAN for the
mortals.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/backref.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 8b471579e26e1..baff31a147e7d 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1366,10 +1366,18 @@ again:
 				goto out;
 			if (!ret && extent_item_pos) {
 				/*
-				 * we've recorded that parent, so we must extend
-				 * its inode list here
+				 * We've recorded that parent, so we must extend
+				 * its inode list here.
+				 *
+				 * However if there was corruption we may not
+				 * have found an eie, return an error in this
+				 * case.
 				 */
-				BUG_ON(!eie);
+				ASSERT(eie);
+				if (!eie) {
+					ret = -EUCLEAN;
+					goto out;
+				}
 				while (eie->next)
 					eie = eie->next;
 				eie->next = ref->inode_list;
-- 
GitLab


From e8da60b3a62978d7e9eb08e15ebd2e99d89debe2 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Mon, 3 Jan 2022 11:40:24 -0800
Subject: [PATCH 3262/4878] net: mdio: Demote probed message to debug print

[ Upstream commit 7590fc6f80ac2cbf23e6b42b668bbeded070850b ]

On systems with large numbers of MDIO bus/muxes the message indicating
that a given MDIO bus has been successfully probed is repeated for as
many buses we have, which can eat up substantial boot time for no
reason, demote to a debug print.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220103194024.2620-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/mdio_bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 2645ca35103c9..c416ab1d2b008 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -588,7 +588,7 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
 	mdiobus_setup_mdiodev_from_board_info(bus, mdiobus_create_device);
 
 	bus->state = MDIOBUS_REGISTERED;
-	pr_info("%s: probed\n", bus->name);
+	dev_dbg(&bus->dev, "probed\n");
 	return 0;
 
 error:
-- 
GitLab


From 754b663ea9167d03604898b3a2253ff58ad06a71 Mon Sep 17 00:00:00 2001
From: Ping-Ke Shih <pkshih@realtek.com>
Date: Mon, 3 Jan 2022 09:36:21 +0800
Subject: [PATCH 3263/4878] mac80211: allow non-standard VHT MCS-10/11

[ Upstream commit 04be6d337d37400ad5b3d5f27ca87645ee5a18a3 ]

Some AP can possibly try non-standard VHT rate and mac80211 warns and drops
packets, and leads low TCP throughput.

    Rate marked as a VHT rate but data is invalid: MCS: 10, NSS: 2
    WARNING: CPU: 1 PID: 7817 at net/mac80211/rx.c:4856 ieee80211_rx_list+0x223/0x2f0 [mac8021

Since commit c27aa56a72b8 ("cfg80211: add VHT rate entries for MCS-10 and MCS-11")
has added, mac80211 adds this support as well.

After this patch, throughput is good and iw can get the bitrate:
    rx bitrate:	975.1 MBit/s VHT-MCS 10 80MHz short GI VHT-NSS 2
or
    rx bitrate:	1083.3 MBit/s VHT-MCS 11 80MHz short GI VHT-NSS 2

Buglink: https://bugzilla.suse.com/show_bug.cgi?id=1192891
Reported-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20220103013623.17052-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6a24431b90095..d27c444a19ed1 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4800,7 +4800,7 @@ void ieee80211_rx_list(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta,
 				goto drop;
 			break;
 		case RX_ENC_VHT:
-			if (WARN_ONCE(status->rate_idx > 9 ||
+			if (WARN_ONCE(status->rate_idx > 11 ||
 				      !status->nss ||
 				      status->nss > 8,
 				      "Rate marked as a VHT rate but data is invalid: MCS: %d, NSS: %d\n",
-- 
GitLab


From 5850bef8e955a0c4ce4653f858c8e37c585269eb Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Fri, 10 Dec 2021 13:44:13 +0000
Subject: [PATCH 3264/4878] dm btree: add a defensive bounds check to
 insert_at()

[ Upstream commit 85bca3c05b6cca31625437eedf2060e846c4bbad ]

Corrupt metadata could trigger an out of bounds write.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/persistent-data/dm-btree.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index ef6e78d45d5b8..ee3e63aa864bf 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -83,14 +83,16 @@ void inc_children(struct dm_transaction_manager *tm, struct btree_node *n,
 }
 
 static int insert_at(size_t value_size, struct btree_node *node, unsigned index,
-		      uint64_t key, void *value)
-		      __dm_written_to_disk(value)
+		     uint64_t key, void *value)
+	__dm_written_to_disk(value)
 {
 	uint32_t nr_entries = le32_to_cpu(node->header.nr_entries);
+	uint32_t max_entries = le32_to_cpu(node->header.max_entries);
 	__le64 key_le = cpu_to_le64(key);
 
 	if (index > nr_entries ||
-	    index >= le32_to_cpu(node->header.max_entries)) {
+	    index >= max_entries ||
+	    nr_entries >= max_entries) {
 		DMERR("too many entries in btree node for insert");
 		__dm_unbless_for_disk(value);
 		return -ENOMEM;
-- 
GitLab


From eaf8cffcf5d555f739d34cb09b7b4862e7bcb5ff Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Fri, 10 Dec 2021 13:49:53 +0000
Subject: [PATCH 3265/4878] dm space map common: add bounds check to
 sm_ll_lookup_bitmap()

[ Upstream commit cba23ac158db7f3cd48a923d6861bee2eb7a2978 ]

Corrupted metadata could warrant returning error from sm_ll_lookup_bitmap().

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/persistent-data/dm-space-map-common.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index a213bf11738fb..85853ab629717 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -281,6 +281,11 @@ int sm_ll_lookup_bitmap(struct ll_disk *ll, dm_block_t b, uint32_t *result)
 	struct disk_index_entry ie_disk;
 	struct dm_block *blk;
 
+	if (b >= ll->nr_blocks) {
+		DMERR_LIMIT("metadata block out of bounds");
+		return -EINVAL;
+	}
+
 	b = do_div(index, ll->entries_per_block);
 	r = ll->load_ie(ll, index, &ie_disk);
 	if (r < 0)
-- 
GitLab


From 00580670b98b06f4f68ae4d2233cb0a2c8c42f58 Mon Sep 17 00:00:00 2001
From: Danielle Ratson <danieller@nvidia.com>
Date: Wed, 5 Jan 2022 12:22:27 +0200
Subject: [PATCH 3266/4878] mlxsw: pci: Avoid flow control for EMAD packets

[ Upstream commit d43e4271747ace01a27a49a97a397cb4219f6487 ]

Locally generated packets ingress the device through its CPU port. When
the CPU port is congested and there are not enough credits in its
headroom buffer, packets can be dropped.

While this might be acceptable for data packets that traverse the
network, configuration packets exchanged between the host and the device
(EMADs) should not be subjected to this flow control.

The "sdq_lp" bit in the SDQ (Send Descriptor Queue) context allows the
host to instruct the device to treat packets sent on this queue as
"local processing" and always process them, regardless of the state of
the CPU port's headroom.

Add the definition of this bit and set it for the dedicated SDQ reserved
for the transmission of EMAD packets. This makes the "local processing"
bit in the WQE (Work Queue Element) redundant, so clear it.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/cmd.h | 12 ++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/pci.c |  6 +++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/cmd.h b/drivers/net/ethernet/mellanox/mlxsw/cmd.h
index 5ffdfb532cb7f..91f68fb0b420a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/cmd.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/cmd.h
@@ -905,6 +905,18 @@ static inline int mlxsw_cmd_sw2hw_rdq(struct mlxsw_core *mlxsw_core,
  */
 MLXSW_ITEM32(cmd_mbox, sw2hw_dq, cq, 0x00, 24, 8);
 
+enum mlxsw_cmd_mbox_sw2hw_dq_sdq_lp {
+	MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_WQE,
+	MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_IGNORE_WQE,
+};
+
+/* cmd_mbox_sw2hw_dq_sdq_lp
+ * SDQ local Processing
+ * 0: local processing by wqe.lp
+ * 1: local processing (ignoring wqe.lp)
+ */
+MLXSW_ITEM32(cmd_mbox, sw2hw_dq, sdq_lp, 0x00, 23, 1);
+
 /* cmd_mbox_sw2hw_dq_sdq_tclass
  * SDQ: CPU Egress TClass
  * RDQ: Reserved
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c
index 72d5c77bcb949..dbb16ce25bdf3 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/pci.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c
@@ -285,6 +285,7 @@ static int mlxsw_pci_sdq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 			      struct mlxsw_pci_queue *q)
 {
 	int tclass;
+	int lp;
 	int i;
 	int err;
 
@@ -292,9 +293,12 @@ static int mlxsw_pci_sdq_init(struct mlxsw_pci *mlxsw_pci, char *mbox,
 	q->consumer_counter = 0;
 	tclass = q->num == MLXSW_PCI_SDQ_EMAD_INDEX ? MLXSW_PCI_SDQ_EMAD_TC :
 						      MLXSW_PCI_SDQ_CTL_TC;
+	lp = q->num == MLXSW_PCI_SDQ_EMAD_INDEX ? MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_IGNORE_WQE :
+						  MLXSW_CMD_MBOX_SW2HW_DQ_SDQ_LP_WQE;
 
 	/* Set CQ of same number of this SDQ. */
 	mlxsw_cmd_mbox_sw2hw_dq_cq_set(mbox, q->num);
+	mlxsw_cmd_mbox_sw2hw_dq_sdq_lp_set(mbox, lp);
 	mlxsw_cmd_mbox_sw2hw_dq_sdq_tclass_set(mbox, tclass);
 	mlxsw_cmd_mbox_sw2hw_dq_log2_dq_sz_set(mbox, 3); /* 8 pages */
 	for (i = 0; i < MLXSW_PCI_AQ_PAGES; i++) {
@@ -1599,7 +1603,7 @@ static int mlxsw_pci_skb_transmit(void *bus_priv, struct sk_buff *skb,
 
 	wqe = elem_info->elem;
 	mlxsw_pci_wqe_c_set(wqe, 1); /* always report completion */
-	mlxsw_pci_wqe_lp_set(wqe, !!tx_info->is_emad);
+	mlxsw_pci_wqe_lp_set(wqe, 0);
 	mlxsw_pci_wqe_type_set(wqe, MLXSW_PCI_WQE_TYPE_ETHERNET);
 
 	err = mlxsw_pci_wqe_frag_map(mlxsw_pci, wqe, 0, skb->data,
-- 
GitLab


From 1063de897563c9214998f08ab3fa00ba193cc093 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 4 Jan 2022 16:38:19 +0000
Subject: [PATCH 3267/4878] net: phy: marvell: configure RGMII delays for
 88E1118

[ Upstream commit f22725c95ececb703c3f741e8f946d23705630b7 ]

Corentin Labbe reports that the SSI 1328 does not work when allowing
the PHY to operate at gigabit speeds, but does work with the generic
PHY driver.

This appears to be because m88e1118_config_init() writes a fixed value
to the MSCR register, claiming that this is to enable 1G speeds.
However, this always sets bits 4 and 5, enabling RGMII transmit and
receive delays. The suspicion is that the original board this was
added for required the delays to make 1G speeds work.

Add the necessary configuration for RGMII delays for the 88E1118 to
bring this into line with the requirements for RGMII support, and thus
make the SSI 1328 work.

Corentin Labbe has tested this on gemini-ssi1328 and gemini-ns2502.

Reported-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/marvell.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 91616182c311f..4dda2ab19c265 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1090,6 +1090,12 @@ static int m88e1118_config_init(struct phy_device *phydev)
 	if (err < 0)
 		return err;
 
+	if (phy_interface_is_rgmii(phydev)) {
+		err = m88e1121_config_aneg_rgmii_delays(phydev);
+		if (err < 0)
+			return err;
+	}
+
 	/* Adjust LED Control */
 	if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
 		err = phy_write(phydev, 0x10, 0x1100);
-- 
GitLab


From 3dc751213fe979874e6d7b286925745cb90edacb Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 4 Jan 2022 16:38:31 +0000
Subject: [PATCH 3268/4878] net: gemini: allow any RGMII interface mode

[ Upstream commit 4e4f325a0a55907b14f579e6b1a38c53755e3de2 ]

The four RGMII interface modes take care of the required RGMII delay
configuration at the PHY and should not be limited by the network MAC
driver. Sadly, gemini was only permitting RGMII mode with no delays,
which would require the required delay to be inserted via PCB tracking
or by the MAC.

However, there are designs that require the PHY to add the delay, which
is impossible without Gemini permitting the other three PHY interface
modes. Fix the driver to allow these.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Link: https://lore.kernel.org/r/E1n4mpT-002PLd-Ha@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cortina/gemini.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index 8df6f081f2447..d11fcfd927c0b 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -305,21 +305,21 @@ static void gmac_speed_set(struct net_device *netdev)
 	switch (phydev->speed) {
 	case 1000:
 		status.bits.speed = GMAC_SPEED_1000;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_1000;
 		netdev_dbg(netdev, "connect %s to RGMII @ 1Gbit\n",
 			   phydev_name(phydev));
 		break;
 	case 100:
 		status.bits.speed = GMAC_SPEED_100;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
 		netdev_dbg(netdev, "connect %s to RGMII @ 100 Mbit\n",
 			   phydev_name(phydev));
 		break;
 	case 10:
 		status.bits.speed = GMAC_SPEED_10;
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII)
+		if (phy_interface_mode_is_rgmii(phydev->interface))
 			status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
 		netdev_dbg(netdev, "connect %s to RGMII @ 10 Mbit\n",
 			   phydev_name(phydev));
@@ -389,6 +389,9 @@ static int gmac_setup_phy(struct net_device *netdev)
 		status.bits.mii_rmii = GMAC_PHY_GMII;
 		break;
 	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
 		netdev_dbg(netdev,
 			   "RGMII: set GMAC0 and GMAC1 to MII/RGMII mode\n");
 		status.bits.mii_rmii = GMAC_PHY_RGMII_100_10;
-- 
GitLab


From 40ac3389263088ff18d43027da8a6c8b9ef8a96d Mon Sep 17 00:00:00 2001
From: Konrad Dybcio <konrad.dybcio@somainline.org>
Date: Thu, 30 Dec 2021 03:34:42 +0100
Subject: [PATCH 3269/4878] regulator: qcom_smd: Align probe function with
 rpmh-regulator

[ Upstream commit 14e2976fbabdacb01335d7f91eeebbc89c67ddb1 ]

The RPMh regulator driver is much newer and gets more attention, which in
consequence makes it do a few things better. Update qcom_smd-regulator's
probe function to mimic what rpmh-regulator does to address a couple of
issues:

- Probe defer now works correctly, before it used to, well,
  kinda just die.. This fixes reliable probing on (at least) PM8994,
  because Linux apparently cannot deal with supply map dependencies yet..

- Regulator data is now matched more sanely: regulator data is matched
  against each individual regulator node name and throwing an -EINVAL if
  data is missing, instead of just assuming everything is fine and
  iterating over all subsequent array members.

- status = "disabled" will now work for disabling individual regulators in
  DT. Previously it didn't seem to do much if anything at all.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20211230023442.1123424-1-konrad.dybcio@somainline.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/regulator/qcom_smd-regulator.c | 100 +++++++++++++++++--------
 1 file changed, 70 insertions(+), 30 deletions(-)

diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
index bb944ee5fe3b1..03e146e98abd5 100644
--- a/drivers/regulator/qcom_smd-regulator.c
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -9,6 +9,7 @@
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/soc/qcom/smd-rpm.h>
 
 struct qcom_rpm_reg {
@@ -1107,52 +1108,91 @@ static const struct of_device_id rpm_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, rpm_of_match);
 
-static int rpm_reg_probe(struct platform_device *pdev)
+/**
+ * rpm_regulator_init_vreg() - initialize all attributes of a qcom_smd-regulator
+ * @vreg:		Pointer to the individual qcom_smd-regulator resource
+ * @dev:		Pointer to the top level qcom_smd-regulator PMIC device
+ * @node:		Pointer to the individual qcom_smd-regulator resource
+ *			device node
+ * @rpm:		Pointer to the rpm bus node
+ * @pmic_rpm_data:	Pointer to a null-terminated array of qcom_smd-regulator
+ *			resources defined for the top level PMIC device
+ *
+ * Return: 0 on success, errno on failure
+ */
+static int rpm_regulator_init_vreg(struct qcom_rpm_reg *vreg, struct device *dev,
+				   struct device_node *node, struct qcom_smd_rpm *rpm,
+				   const struct rpm_regulator_data *pmic_rpm_data)
 {
-	const struct rpm_regulator_data *reg;
-	const struct of_device_id *match;
-	struct regulator_config config = { };
+	struct regulator_config config = {};
+	const struct rpm_regulator_data *rpm_data;
 	struct regulator_dev *rdev;
+	int ret;
+
+	for (rpm_data = pmic_rpm_data; rpm_data->name; rpm_data++)
+		if (of_node_name_eq(node, rpm_data->name))
+			break;
+
+	if (!rpm_data->name) {
+		dev_err(dev, "Unknown regulator %pOFn\n", node);
+		return -EINVAL;
+	}
+
+	vreg->dev	= dev;
+	vreg->rpm	= rpm;
+	vreg->type	= rpm_data->type;
+	vreg->id	= rpm_data->id;
+
+	memcpy(&vreg->desc, rpm_data->desc, sizeof(vreg->desc));
+	vreg->desc.name = rpm_data->name;
+	vreg->desc.supply_name = rpm_data->supply;
+	vreg->desc.owner = THIS_MODULE;
+	vreg->desc.type = REGULATOR_VOLTAGE;
+	vreg->desc.of_match = rpm_data->name;
+
+	config.dev		= dev;
+	config.of_node		= node;
+	config.driver_data	= vreg;
+
+	rdev = devm_regulator_register(dev, &vreg->desc, &config);
+	if (IS_ERR(rdev)) {
+		ret = PTR_ERR(rdev);
+		dev_err(dev, "%pOFn: devm_regulator_register() failed, ret=%d\n", node, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int rpm_reg_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct rpm_regulator_data *vreg_data;
+	struct device_node *node;
 	struct qcom_rpm_reg *vreg;
 	struct qcom_smd_rpm *rpm;
+	int ret;
 
 	rpm = dev_get_drvdata(pdev->dev.parent);
 	if (!rpm) {
-		dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
+		dev_err(&pdev->dev, "Unable to retrieve handle to rpm\n");
 		return -ENODEV;
 	}
 
-	match = of_match_device(rpm_of_match, &pdev->dev);
-	if (!match) {
-		dev_err(&pdev->dev, "failed to match device\n");
+	vreg_data = of_device_get_match_data(dev);
+	if (!vreg_data)
 		return -ENODEV;
-	}
 
-	for (reg = match->data; reg->name; reg++) {
+	for_each_available_child_of_node(dev->of_node, node) {
 		vreg = devm_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
 		if (!vreg)
 			return -ENOMEM;
 
-		vreg->dev = &pdev->dev;
-		vreg->type = reg->type;
-		vreg->id = reg->id;
-		vreg->rpm = rpm;
-
-		memcpy(&vreg->desc, reg->desc, sizeof(vreg->desc));
-
-		vreg->desc.id = -1;
-		vreg->desc.owner = THIS_MODULE;
-		vreg->desc.type = REGULATOR_VOLTAGE;
-		vreg->desc.name = reg->name;
-		vreg->desc.supply_name = reg->supply;
-		vreg->desc.of_match = reg->name;
-
-		config.dev = &pdev->dev;
-		config.driver_data = vreg;
-		rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
-		if (IS_ERR(rdev)) {
-			dev_err(&pdev->dev, "failed to register %s\n", reg->name);
-			return PTR_ERR(rdev);
+		ret = rpm_regulator_init_vreg(vreg, dev, node, rpm, vreg_data);
+
+		if (ret < 0) {
+			of_node_put(node);
+			return ret;
 		}
 	}
 
-- 
GitLab


From a03fd1b198918d7afac4eb3f2a32fb79182aa29b Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Sun, 2 Jan 2022 18:42:44 +0100
Subject: [PATCH 3270/4878] serial: pl010: Drop CR register reset on
 set_termios

[ Upstream commit 08a0c6dff91c965e39905cf200d22db989203ccb ]

pl010_set_termios() briefly resets the CR register to zero.

Where does this register write come from?

The PL010 driver's IRQ handler ambauart_int() originally modified the CR
register without holding the port spinlock.  ambauart_set_termios() also
modified that register.  To prevent concurrent read-modify-writes by the
IRQ handler and to prevent transmission while changing baudrate,
ambauart_set_termios() had to disable interrupts.  That is achieved by
writing zero to the CR register.

However in 2004 the PL010 driver was amended to acquire the port
spinlock in the IRQ handler, obviating the need to disable interrupts in
->set_termios():
https://git.kernel.org/history/history/c/157c0342e591

That rendered the CR register write obsolete.  Drop it.

Cc: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/fcaff16e5b1abb4cc3da5a2879ac13f278b99ed0.1641128728.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/amba-pl010.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 3284f34e9dfe1..75d61e038a775 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -448,14 +448,11 @@ pl010_set_termios(struct uart_port *port, struct ktermios *termios,
 	if ((termios->c_cflag & CREAD) == 0)
 		uap->port.ignore_status_mask |= UART_DUMMY_RSR_RX;
 
-	/* first, disable everything */
 	old_cr = readb(uap->port.membase + UART010_CR) & ~UART010_CR_MSIE;
 
 	if (UART_ENABLE_MS(port, termios->c_cflag))
 		old_cr |= UART010_CR_MSIE;
 
-	writel(0, uap->port.membase + UART010_CR);
-
 	/* Set baud rate */
 	quot -= 1;
 	writel((quot & 0xf00) >> 8, uap->port.membase + UART010_LCRM);
-- 
GitLab


From f8fdebfb4b37019ef7ff84187208159385a95032 Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Sun, 2 Jan 2022 18:52:44 +0100
Subject: [PATCH 3271/4878] serial: core: Keep mctrl register state and cached
 copy in sync

[ Upstream commit 93a770b7e16772530196674ffc79bb13fa927dc6 ]

struct uart_port contains a cached copy of the Modem Control signals.
It is used to skip register writes in uart_update_mctrl() if the new
signal state equals the old signal state.  It also avoids a register
read to obtain the current state of output signals.

When a uart_port is registered, uart_configure_port() changes signal
state but neglects to keep the cached copy in sync.  That may cause
a subsequent register write to be incorrectly skipped.  Fix it before
it trips somebody up.

This behavior has been present ever since the serial core was introduced
in 2002:
https://git.kernel.org/history/history/c/33c0d1b0c3eb

So far it was never an issue because the cached copy is initialized to 0
by kzalloc() and when uart_configure_port() is executed, at most DTR has
been set by uart_set_options() or sunsu_console_setup().  Therefore,
a stable designation seems unnecessary.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/bceeaba030b028ed810272d55d5fc6f3656ddddb.1641129752.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/serial_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 046bedca7b8f5..55108db5b64bf 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2414,7 +2414,8 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state,
 		 * We probably don't need a spinlock around this, but
 		 */
 		spin_lock_irqsave(&port->lock, flags);
-		port->ops->set_mctrl(port, port->mctrl & TIOCM_DTR);
+		port->mctrl &= TIOCM_DTR;
+		port->ops->set_mctrl(port, port->mctrl);
 		spin_unlock_irqrestore(&port->lock, flags);
 
 		/*
-- 
GitLab


From f2a27dd7a2de3a574d9a6da2266166d58743b562 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 29 Dec 2021 22:10:05 +0100
Subject: [PATCH 3272/4878] random: do not throw away excess input to
 crng_fast_load

[ Upstream commit 73c7733f122e8d0107f88655a12011f68f69e74b ]

When crng_fast_load() is called by add_hwgenerator_randomness(), we
currently will advance to crng_init==1 once we've acquired 64 bytes, and
then throw away the rest of the buffer. Usually, that is not a problem:
When add_hwgenerator_randomness() gets called via EFI or DT during
setup_arch(), there won't be any IRQ randomness. Therefore, the 64 bytes
passed by EFI exactly matches what is needed to advance to crng_init==1.
Usually, DT seems to pass 64 bytes as well -- with one notable exception
being kexec, which hands over 128 bytes of entropy to the kexec'd kernel.
In that case, we'll advance to crng_init==1 once 64 of those bytes are
consumed by crng_fast_load(), but won't continue onward feeding in bytes
to progress to crng_init==2. This commit fixes the issue by feeding
any leftover bytes into the next phase in add_hwgenerator_randomness().

[linux@dominikbrodowski.net: rewrite commit message]
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/random.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 8c94380e7a463..5444206f35e22 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -922,12 +922,14 @@ static struct crng_state *select_crng(void)
 
 /*
  * crng_fast_load() can be called by code in the interrupt service
- * path.  So we can't afford to dilly-dally.
+ * path.  So we can't afford to dilly-dally. Returns the number of
+ * bytes processed from cp.
  */
-static int crng_fast_load(const char *cp, size_t len)
+static size_t crng_fast_load(const char *cp, size_t len)
 {
 	unsigned long flags;
 	char *p;
+	size_t ret = 0;
 
 	if (!spin_trylock_irqsave(&primary_crng.lock, flags))
 		return 0;
@@ -938,7 +940,7 @@ static int crng_fast_load(const char *cp, size_t len)
 	p = (unsigned char *) &primary_crng.state[4];
 	while (len > 0 && crng_init_cnt < CRNG_INIT_CNT_THRESH) {
 		p[crng_init_cnt % CHACHA_KEY_SIZE] ^= *cp;
-		cp++; crng_init_cnt++; len--;
+		cp++; crng_init_cnt++; len--; ret++;
 	}
 	spin_unlock_irqrestore(&primary_crng.lock, flags);
 	if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) {
@@ -946,7 +948,7 @@ static int crng_fast_load(const char *cp, size_t len)
 		crng_init = 1;
 		pr_notice("fast init done\n");
 	}
-	return 1;
+	return ret;
 }
 
 /*
@@ -1299,7 +1301,7 @@ void add_interrupt_randomness(int irq, int irq_flags)
 	if (unlikely(crng_init == 0)) {
 		if ((fast_pool->count >= 64) &&
 		    crng_fast_load((char *) fast_pool->pool,
-				   sizeof(fast_pool->pool))) {
+				   sizeof(fast_pool->pool)) > 0) {
 			fast_pool->count = 0;
 			fast_pool->last = now;
 		}
@@ -2319,8 +2321,11 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
 	struct entropy_store *poolp = &input_pool;
 
 	if (unlikely(crng_init == 0)) {
-		crng_fast_load(buffer, count);
-		return;
+		size_t ret = crng_fast_load(buffer, count);
+		count -= ret;
+		buffer += ret;
+		if (!count || crng_init == 0)
+			return;
 	}
 
 	/* Suspend writing if we're above the trickle threshold.
-- 
GitLab


From 3681e9f3f0f7df9a3821b02fadf17a669681ea43 Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Wed, 22 Dec 2021 16:52:26 +0000
Subject: [PATCH 3273/4878] parisc: Avoid calling faulthandler_disabled() twice

[ Upstream commit 9e9d4b460f23bab61672eae397417d03917d116c ]

In handle_interruption(), we call faulthandler_disabled() to check whether the
fault handler is not disabled. If the fault handler is disabled, we immediately
call do_page_fault(). It then calls faulthandler_disabled(). If disabled,
do_page_fault() attempts to fixup the exception by jumping to no_context:

no_context:

        if (!user_mode(regs) && fixup_exception(regs)) {
                return;
        }

        parisc_terminate("Bad Address (null pointer deref?)", regs, code, address);

Apart from the error messages, the two blocks of code perform the same
function.

We can avoid two calls to faulthandler_disabled() by a simple revision
to the code in handle_interruption().

Note: I didn't try to fix the formatting of this code block.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/parisc/kernel/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 43f56335759a4..269b737d26299 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -784,7 +784,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	     * unless pagefault_disable() was called before.
 	     */
 
-	    if (fault_space == 0 && !faulthandler_disabled())
+	    if (faulthandler_disabled() || fault_space == 0)
 	    {
 		/* Clean up and return if in exception table. */
 		if (fixup_exception(regs))
-- 
GitLab


From d240b08d8ac4e85909f2d90e573688131e8f9284 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 5 Jan 2022 01:35:58 +0100
Subject: [PATCH 3274/4878] x86/kbuild: Enable CONFIG_KALLSYMS_ALL=y in the
 defconfigs

[ Upstream commit b6aa86cff44cf099299d3a5e66348cb709cd7964 ]

Most distro kernels have this option enabled, to improve debug output.

Lockdep also selects it.

Enable this in the defconfig kernel as well, to make it more
representative of what people are using on x86.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/YdTn7gssoMVDMgMw@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/configs/i386_defconfig   | 1 +
 arch/x86/configs/x86_64_defconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 78210793d357c..38d7acb9610cc 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -264,3 +264,4 @@ CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 CONFIG_EARLY_PRINTK_DBGP=y
 CONFIG_DEBUG_BOOT_PARAMS=y
+CONFIG_KALLSYMS_ALL=y
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 9936528e19393..c6e587a9a6f85 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -260,3 +260,4 @@ CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
 CONFIG_EARLY_PRINTK_DBGP=y
 CONFIG_DEBUG_BOOT_PARAMS=y
+CONFIG_KALLSYMS_ALL=y
-- 
GitLab


From c83ba875d7be12d84842c50044ee5567296f0221 Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Fri, 20 Nov 2015 20:33:19 +0000
Subject: [PATCH 3275/4878] powerpc/6xx: add missing of_node_put

[ Upstream commit f6e82647ff71d427d4148964b71f239fba9d7937 ]

for_each_compatible_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression e;
local idexpression n;
@@

@@
local idexpression n;
expression e;
@@

 for_each_compatible_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-2-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index a1b7f79a8a152..de10c13de15c6 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -215,6 +215,7 @@ void hlwd_pic_probe(void)
 			irq_set_chained_handler(cascade_virq,
 						hlwd_pic_irq_cascade);
 			hlwd_irq_host = host;
+			of_node_put(np);
 			break;
 		}
 	}
-- 
GitLab


From 297ff7d5f157afa47de1f9e4890d272d31e2379f Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Fri, 20 Nov 2015 20:33:21 +0000
Subject: [PATCH 3276/4878] powerpc/powernv: add missing of_node_put

[ Upstream commit 7d405a939ca960162eb30c1475759cb2fdf38f8c ]

for_each_compatible_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
@@

 for_each_compatible_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-4-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/powernv/opal-lpc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c
index 608569082ba0b..123a0e799b7bd 100644
--- a/arch/powerpc/platforms/powernv/opal-lpc.c
+++ b/arch/powerpc/platforms/powernv/opal-lpc.c
@@ -396,6 +396,7 @@ void __init opal_lpc_init(void)
 		if (!of_get_property(np, "primary", NULL))
 			continue;
 		opal_lpc_chip_id = of_get_ibm_chip_id(np);
+		of_node_put(np);
 		break;
 	}
 	if (opal_lpc_chip_id < 0)
-- 
GitLab


From fc10d8f00a89717a5d7fd837e6b6a188e4279d48 Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Fri, 20 Nov 2015 21:33:24 +0100
Subject: [PATCH 3277/4878] powerpc/cell: add missing of_node_put

[ Upstream commit a841fd009e51c8c0a8f07c942e9ab6bb48da8858 ]

for_each_node_by_name performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression e,e1;
local idexpression n;
@@

 for_each_node_by_name(n, e1) {
   ... when != of_node_put(n)
       when != e = n
(
   return n;
|
+  of_node_put(n);
?  return ...;
)
   ...
 }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-7-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/cell/iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 2124831cf57c0..d04079b34d7c2 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -976,6 +976,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
 			if (hbase < dbase || (hend > (dbase + dsize))) {
 				pr_debug("iommu: hash window doesn't fit in"
 					 "real DMA window\n");
+				of_node_put(np);
 				return -1;
 			}
 		}
-- 
GitLab


From a83639521a4f4a32da6a77155afead54a0325f4e Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Fri, 20 Nov 2015 20:33:23 +0000
Subject: [PATCH 3278/4878] powerpc/btext: add missing of_node_put

[ Upstream commit a1d2b210ffa52d60acabbf7b6af3ef7e1e69cda0 ]

for_each_node_by_type performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
@@

 for_each_node_by_type(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1448051604-25256-6-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/btext.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 803c2a45b22ac..1cffb5e7c38d6 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -241,8 +241,10 @@ int __init btext_find_display(int allow_nonstdout)
 			rc = btext_initialize(np);
 			printk("result: %d\n", rc);
 		}
-		if (rc == 0)
+		if (rc == 0) {
+			of_node_put(np);
 			break;
+		}
 	}
 	return rc;
 }
-- 
GitLab


From 75e2cfa5fae9474f84a2437b62a73a2ba0d2509f Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Wed, 10 Nov 2021 12:50:53 +1000
Subject: [PATCH 3279/4878] powerpc/watchdog: Fix missed watchdog reset due to
 memory ordering race

[ Upstream commit 5dad4ba68a2483fc80d70b9dc90bbe16e1f27263 ]

It is possible for all CPUs to miss the pending cpumask becoming clear,
and then nobody resetting it, which will cause the lockup detector to
stop working. It will eventually expire, but watchdog_smp_panic will
avoid doing anything if the pending mask is clear and it will never be
reset.

Order the cpumask clear vs the subsequent test to close this race.

Add an extra check for an empty pending mask when the watchdog fires and
finds its bit still clear, to try to catch any other possible races or
bugs here and keep the watchdog working. The extra test in
arch_touch_nmi_watchdog is required to prevent the new warning from
firing off.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Debugged-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211110025056.2084347-2-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/watchdog.c | 41 +++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
index af3c15a1d41eb..75b2a6c4db5a5 100644
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@@ -132,6 +132,10 @@ static void set_cpumask_stuck(const struct cpumask *cpumask, u64 tb)
 {
 	cpumask_or(&wd_smp_cpus_stuck, &wd_smp_cpus_stuck, cpumask);
 	cpumask_andnot(&wd_smp_cpus_pending, &wd_smp_cpus_pending, cpumask);
+	/*
+	 * See wd_smp_clear_cpu_pending()
+	 */
+	smp_mb();
 	if (cpumask_empty(&wd_smp_cpus_pending)) {
 		wd_smp_last_reset_tb = tb;
 		cpumask_andnot(&wd_smp_cpus_pending,
@@ -217,13 +221,44 @@ static void wd_smp_clear_cpu_pending(int cpu, u64 tb)
 
 			cpumask_clear_cpu(cpu, &wd_smp_cpus_stuck);
 			wd_smp_unlock(&flags);
+		} else {
+			/*
+			 * The last CPU to clear pending should have reset the
+			 * watchdog so we generally should not find it empty
+			 * here if our CPU was clear. However it could happen
+			 * due to a rare race with another CPU taking the
+			 * last CPU out of the mask concurrently.
+			 *
+			 * We can't add a warning for it. But just in case
+			 * there is a problem with the watchdog that is causing
+			 * the mask to not be reset, try to kick it along here.
+			 */
+			if (unlikely(cpumask_empty(&wd_smp_cpus_pending)))
+				goto none_pending;
 		}
 		return;
 	}
+
 	cpumask_clear_cpu(cpu, &wd_smp_cpus_pending);
+
+	/*
+	 * Order the store to clear pending with the load(s) to check all
+	 * words in the pending mask to check they are all empty. This orders
+	 * with the same barrier on another CPU. This prevents two CPUs
+	 * clearing the last 2 pending bits, but neither seeing the other's
+	 * store when checking if the mask is empty, and missing an empty
+	 * mask, which ends with a false positive.
+	 */
+	smp_mb();
 	if (cpumask_empty(&wd_smp_cpus_pending)) {
 		unsigned long flags;
 
+none_pending:
+		/*
+		 * Double check under lock because more than one CPU could see
+		 * a clear mask with the lockless check after clearing their
+		 * pending bits.
+		 */
 		wd_smp_lock(&flags);
 		if (cpumask_empty(&wd_smp_cpus_pending)) {
 			wd_smp_last_reset_tb = tb;
@@ -314,8 +349,12 @@ void arch_touch_nmi_watchdog(void)
 {
 	unsigned long ticks = tb_ticks_per_usec * wd_timer_period_ms * 1000;
 	int cpu = smp_processor_id();
-	u64 tb = get_tb();
+	u64 tb;
 
+	if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
+		return;
+
+	tb = get_tb();
 	if (tb - per_cpu(wd_timer_tb, cpu) >= ticks) {
 		per_cpu(wd_timer_tb, cpu) = tb;
 		wd_smp_clear_cpu_pending(cpu, tb);
-- 
GitLab


From 25714ad6bf5e98025579fa4c08ff2041a663910c Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Sun, 7 Nov 2021 22:57:00 +0100
Subject: [PATCH 3280/4878] i2c: i801: Don't silently correct invalid transfer
 size

[ Upstream commit effa453168a7eeb8a562ff4edc1dbf9067360a61 ]

If an invalid block size is provided, reject it instead of silently
changing it to a supported value. Especially critical I see the case of
a write transfer with block length 0. In this case we have no guarantee
that the byte we would write is valid. When silently reducing a read to
32 bytes then we don't return an error and the caller may falsely
assume that we returned the full requested data.

If this change should break any (broken) caller, then I think we should
fix the caller.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-i801.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index eab6fd6b890eb..5618c1ff34dc3 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -797,6 +797,11 @@ static int i801_block_transaction(struct i801_priv *priv,
 	int result = 0;
 	unsigned char hostc;
 
+	if (read_write == I2C_SMBUS_READ && command == I2C_SMBUS_BLOCK_DATA)
+		data->block[0] = I2C_SMBUS_BLOCK_MAX;
+	else if (data->block[0] < 1 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+		return -EPROTO;
+
 	if (command == I2C_SMBUS_I2C_BLOCK_DATA) {
 		if (read_write == I2C_SMBUS_WRITE) {
 			/* set I2C_EN bit in configuration register */
@@ -810,16 +815,6 @@ static int i801_block_transaction(struct i801_priv *priv,
 		}
 	}
 
-	if (read_write == I2C_SMBUS_WRITE
-	 || command == I2C_SMBUS_I2C_BLOCK_DATA) {
-		if (data->block[0] < 1)
-			data->block[0] = 1;
-		if (data->block[0] > I2C_SMBUS_BLOCK_MAX)
-			data->block[0] = I2C_SMBUS_BLOCK_MAX;
-	} else {
-		data->block[0] = 32;	/* max for SMBus block reads */
-	}
-
 	/* Experience has shown that the block buffer can only be used for
 	   SMBus (not I2C) block transactions, even though the datasheet
 	   doesn't mention this limitation. */
-- 
GitLab


From 4b25aad655c92d4d99aaf733f7e128852e05069c Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Wed, 24 Nov 2021 20:32:53 +1100
Subject: [PATCH 3281/4878] powerpc/smp: Move setup_profiling_timer() under
 CONFIG_PROFILING
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit a4ac0d249a5db80e79d573db9e4ad29354b643a8 ]

setup_profiling_timer() is only needed when CONFIG_PROFILING is enabled.

Fixes the following W=1 warning when CONFIG_PROFILING=n:
  linux/arch/powerpc/kernel/smp.c:1638:5: error: no previous prototype for ‘setup_profiling_timer’

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211124093254.1054750-5-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/smp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 452cbf98bfd71..50aeef08aa470 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1488,10 +1488,12 @@ void start_secondary(void *unused)
 	BUG();
 }
 
+#ifdef CONFIG_PROFILING
 int setup_profiling_timer(unsigned int multiplier)
 {
 	return 0;
 }
+#endif
 
 static void fixup_topology(void)
 {
-- 
GitLab


From 30d35a1abd9edc1f771bdc8118940c5db0c7cb58 Mon Sep 17 00:00:00 2001
From: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Date: Thu, 11 May 2017 14:20:33 +0200
Subject: [PATCH 3282/4878] i2c: mpc: Correct I2C reset procedure

[ Upstream commit ebe82cf92cd4825c3029434cabfcd2f1780e64be ]

Current I2C reset procedure is broken in two ways:
1) It only generate 1 START instead of 9 STARTs and STOP.
2) It leaves the bus Busy so every I2C xfer after the first
   fixup calls the reset routine again, for every xfer there after.

This fixes both errors.

Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-mpc.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index af349661fd769..8de8296d25831 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -105,23 +105,30 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
 /* Sometimes 9th clock pulse isn't generated, and slave doesn't release
  * the bus, because it wants to send ACK.
  * Following sequence of enabling/disabling and sending start/stop generates
- * the 9 pulses, so it's all OK.
+ * the 9 pulses, each with a START then ending with STOP, so it's all OK.
  */
 static void mpc_i2c_fixup(struct mpc_i2c *i2c)
 {
 	int k;
-	u32 delay_val = 1000000 / i2c->real_clk + 1;
-
-	if (delay_val < 2)
-		delay_val = 2;
+	unsigned long flags;
 
 	for (k = 9; k; k--) {
 		writeccr(i2c, 0);
-		writeccr(i2c, CCR_MSTA | CCR_MTX | CCR_MEN);
+		writeb(0, i2c->base + MPC_I2C_SR); /* clear any status bits */
+		writeccr(i2c, CCR_MEN | CCR_MSTA); /* START */
+		readb(i2c->base + MPC_I2C_DR); /* init xfer */
+		udelay(15); /* let it hit the bus */
+		local_irq_save(flags); /* should not be delayed further */
+		writeccr(i2c, CCR_MEN | CCR_MSTA | CCR_RSTA); /* delay SDA */
 		readb(i2c->base + MPC_I2C_DR);
-		writeccr(i2c, CCR_MEN);
-		udelay(delay_val << 1);
+		if (k != 1)
+			udelay(5);
+		local_irq_restore(flags);
 	}
+	writeccr(i2c, CCR_MEN); /* Initiate STOP */
+	readb(i2c->base + MPC_I2C_DR);
+	udelay(15); /* Let STOP propagate */
+	writeccr(i2c, 0);
 }
 
 static int i2c_wait(struct mpc_i2c *i2c, unsigned timeout, int writing)
-- 
GitLab


From df29c01b9fbe2ea898e78fb7751441f378fbd691 Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Sun, 31 Oct 2021 14:50:06 +0100
Subject: [PATCH 3283/4878] clk: meson: gxbb: Fix the SDM_EN bit for MPLL0 on
 GXBB

[ Upstream commit ff54938dd190d85f740b9bf9dde59b550936b621 ]

There are reports that 48kHz audio does not work on the WeTek Play 2
(which uses a GXBB SoC), while 44.1kHz audio works fine on the same
board. There are also reports of 48kHz audio working fine on GXL and
GXM SoCs, which are using an (almost) identical AIU (audio controller).

Experimenting has shown that MPLL0 is causing this problem. In the .dts
we have by default:
	assigned-clocks = <&clkc CLKID_MPLL0>,
			  <&clkc CLKID_MPLL1>,
			  <&clkc CLKID_MPLL2>;
	assigned-clock-rates = <294912000>,
			       <270950400>,
			       <393216000>;
The MPLL0 rate is divisible by 48kHz without remainder and the MPLL1
rate is divisible by 44.1kHz without remainder. Swapping these two clock
rates "fixes" 48kHz audio but breaks 44.1kHz audio.

Everything looks normal when looking at the info provided by the common
clock framework while playing 48kHz audio (via I2S with mclk-fs = 256):
        mpll_prediv                 1        1        0  2000000000
           mpll0_div                1        1        0   294909641
              mpll0                 1        1        0   294909641
                 cts_amclk_sel       1        1        0   294909641
                    cts_amclk_div       1        1        0    12287902
                       cts_amclk       1        1        0    12287902

meson-clk-msr however shows that the actual MPLL0 clock is off by more
than 38MHz:
        mp0_out               333322917    +/-10416Hz

The rate seen by meson-clk-msr is very close to what we would get when
SDM (the fractional part) was ignored:
  (2000000000Hz * 16384) / ((16384 * 6) = 333.33MHz
If SDM was considered the we should get close to:
  (2000000000Hz * 16384) / ((16384 * 6) + 12808) = 294.9MHz

Further experimenting shows that HHI_MPLL_CNTL7[15] does not have any
effect on the rate of MPLL0 as seen my meson-clk-msr (regardless of
whether that bit is zero or one the rate is always the same according to
meson-clk-msr). Using HHI_MPLL_CNTL[25] on the other hand as SDM_EN
results in SDM being considered for the rate output by the hardware. The
rate - as seen by meson-clk-msr - matches with what we expect when
SDM_EN is enabled (fractional part is being considered, resulting in a
294.9MHz output) or disable (fractional part being ignored, resulting in
a 333.33MHz output).

Reported-by: Christian Hewitt <christianshewitt@gmail.com>
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20211031135006.1508796-1-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/meson/gxbb.c | 44 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 41 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index 0a68af6eec3dd..d42551a46ec91 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -712,6 +712,35 @@ static struct clk_regmap gxbb_mpll_prediv = {
 };
 
 static struct clk_regmap gxbb_mpll0_div = {
+	.data = &(struct meson_clk_mpll_data){
+		.sdm = {
+			.reg_off = HHI_MPLL_CNTL7,
+			.shift   = 0,
+			.width   = 14,
+		},
+		.sdm_en = {
+			.reg_off = HHI_MPLL_CNTL,
+			.shift   = 25,
+			.width	 = 1,
+		},
+		.n2 = {
+			.reg_off = HHI_MPLL_CNTL7,
+			.shift   = 16,
+			.width   = 9,
+		},
+		.lock = &meson_clk_lock,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "mpll0_div",
+		.ops = &meson_clk_mpll_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&gxbb_mpll_prediv.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap gxl_mpll0_div = {
 	.data = &(struct meson_clk_mpll_data){
 		.sdm = {
 			.reg_off = HHI_MPLL_CNTL7,
@@ -748,7 +777,16 @@ static struct clk_regmap gxbb_mpll0 = {
 	.hw.init = &(struct clk_init_data){
 		.name = "mpll0",
 		.ops = &clk_regmap_gate_ops,
-		.parent_hws = (const struct clk_hw *[]) { &gxbb_mpll0_div.hw },
+		.parent_data = &(const struct clk_parent_data) {
+			/*
+			 * Note:
+			 * GXL and GXBB have different SDM_EN registers. We
+			 * fallback to the global naming string mechanism so
+			 * mpll0_div picks up the appropriate one.
+			 */
+			.name = "mpll0_div",
+			.index = -1,
+		},
 		.num_parents = 1,
 		.flags = CLK_SET_RATE_PARENT,
 	},
@@ -3043,7 +3081,7 @@ static struct clk_hw_onecell_data gxl_hw_onecell_data = {
 		[CLKID_VAPB_1]		    = &gxbb_vapb_1.hw,
 		[CLKID_VAPB_SEL]	    = &gxbb_vapb_sel.hw,
 		[CLKID_VAPB]		    = &gxbb_vapb.hw,
-		[CLKID_MPLL0_DIV]	    = &gxbb_mpll0_div.hw,
+		[CLKID_MPLL0_DIV]	    = &gxl_mpll0_div.hw,
 		[CLKID_MPLL1_DIV]	    = &gxbb_mpll1_div.hw,
 		[CLKID_MPLL2_DIV]	    = &gxbb_mpll2_div.hw,
 		[CLKID_MPLL_PREDIV]	    = &gxbb_mpll_prediv.hw,
@@ -3438,7 +3476,7 @@ static struct clk_regmap *const gxl_clk_regmaps[] = {
 	&gxbb_mpll0,
 	&gxbb_mpll1,
 	&gxbb_mpll2,
-	&gxbb_mpll0_div,
+	&gxl_mpll0_div,
 	&gxbb_mpll1_div,
 	&gxbb_mpll2_div,
 	&gxbb_cts_amclk_div,
-- 
GitLab


From 03c1595a181c6ffccb78e1608bc8dbf6c3686f20 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Tue, 30 Nov 2021 10:32:42 +0100
Subject: [PATCH 3284/4878] powerpc/powermac: Add missing
 lockdep_register_key()

[ Upstream commit df1f679d19edb9eeb67cc2f96b29375f21991945 ]

KeyWest i2c @0xf8001003 irq 42 /uni-n@f8000000/i2c@f8001000
BUG: key c2d00cbc has not been registered!
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:4801 lockdep_init_map_type+0x4c0/0xb4c
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.5-gentoo-PowerMacG4 #9
NIP:  c01a9428 LR: c01a9428 CTR: 00000000
REGS: e1033cf0 TRAP: 0700   Not tainted  (5.15.5-gentoo-PowerMacG4)
MSR:  00029032 <EE,ME,IR,DR,RI>  CR: 24002002  XER: 00000000

GPR00: c01a9428 e1033db0 c2d1cf20 00000016 00000004 00000001 c01c0630 e1033a73
GPR08: 00000000 00000000 00000000 e1033db0 24002004 00000000 f8729377 00000003
GPR16: c1829a9c 00000000 18305357 c1416fc0 c1416f80 c006ac60 c2d00ca8 c1416f00
GPR24: 00000000 c21586f0 c2160000 00000000 c2d00cbc c2170000 c216e1a0 c2160000
NIP [c01a9428] lockdep_init_map_type+0x4c0/0xb4c
LR [c01a9428] lockdep_init_map_type+0x4c0/0xb4c
Call Trace:
[e1033db0] [c01a9428] lockdep_init_map_type+0x4c0/0xb4c (unreliable)
[e1033df0] [c1c177b8] kw_i2c_add+0x334/0x424
[e1033e20] [c1c18294] pmac_i2c_init+0x9ec/0xa9c
[e1033e80] [c1c1a790] smp_core99_probe+0xbc/0x35c
[e1033eb0] [c1c03cb0] kernel_init_freeable+0x190/0x5a4
[e1033f10] [c000946c] kernel_init+0x28/0x154
[e1033f30] [c0035148] ret_from_kernel_thread+0x14/0x1c

Add missing lockdep_register_key()

Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/69e4f55565bb45ebb0843977801b245af0c666fe.1638264741.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/powermac/low_i2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 09bfe4b8f25aa..df89d916236d9 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -582,6 +582,7 @@ static void __init kw_i2c_add(struct pmac_i2c_host_kw *host,
 	bus->close = kw_i2c_close;
 	bus->xfer = kw_i2c_xfer;
 	mutex_init(&bus->mutex);
+	lockdep_register_key(&bus->lock_key);
 	lockdep_set_class(&bus->mutex, &bus->lock_key);
 	if (controller == busnode)
 		bus->flags = pmac_i2c_multibus;
-- 
GitLab


From 23bb3f01ceb56500ef3f70c5e3a76e55febb39cd Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Wed, 1 Sep 2021 18:45:12 +1000
Subject: [PATCH 3285/4878] KVM: PPC: Book3S: Suppress warnings when allocating
 too big memory slots

[ Upstream commit 511d25d6b789fffcb20a3eb71899cf974a31bd9d ]

The userspace can trigger "vmalloc size %lu allocation failure: exceeds
total pages" via the KVM_SET_USER_MEMORY_REGION ioctl.

This silences the warning by checking the limit before calling vzalloc()
and returns ENOMEM if failed.

This does not call underlying valloc helpers as __vmalloc_node() is only
exported when CONFIG_TEST_VMALLOC_MODULE and __vmalloc_node_range() is
not exported at all.

Spotted by syzkaller.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[mpe: Use 'size' for the variable rather than 'cb']
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210901084512.1658628-1-aik@ozlabs.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_hv.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 175967a195c44..527c205d5a5f5 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -4557,8 +4557,12 @@ static int kvmppc_core_prepare_memory_region_hv(struct kvm *kvm,
 	unsigned long npages = mem->memory_size >> PAGE_SHIFT;
 
 	if (change == KVM_MR_CREATE) {
-		slot->arch.rmap = vzalloc(array_size(npages,
-					  sizeof(*slot->arch.rmap)));
+		unsigned long size = array_size(npages, sizeof(*slot->arch.rmap));
+
+		if ((size >> PAGE_SHIFT) > totalram_pages())
+			return -ENOMEM;
+
+		slot->arch.rmap = vzalloc(size);
 		if (!slot->arch.rmap)
 			return -ENOMEM;
 	}
-- 
GitLab


From 87e91d6c6a5eaa55b62f51f98b906b35cbee8f19 Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Wed, 1 Sep 2021 18:45:50 +1000
Subject: [PATCH 3286/4878] KVM: PPC: Book3S: Suppress failed alloc warning in
 H_COPY_TOFROM_GUEST

[ Upstream commit 792020907b11c6f9246c21977cab3bad985ae4b6 ]

H_COPY_TOFROM_GUEST is an hcall for an upper level VM to access its nested
VMs memory. The userspace can trigger WARN_ON_ONCE(!(gfp & __GFP_NOWARN))
in __alloc_pages() by constructing a tiny VM which only does
H_COPY_TOFROM_GUEST with a too big GPR9 (number of bytes to copy).

This silences the warning by adding __GFP_NOWARN.

Spotted by syzkaller.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210901084550.1658699-1-aik@ozlabs.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_hv_nested.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c
index a5f1ae892ba68..d0b6c8c16c48a 100644
--- a/arch/powerpc/kvm/book3s_hv_nested.c
+++ b/arch/powerpc/kvm/book3s_hv_nested.c
@@ -510,7 +510,7 @@ long kvmhv_copy_tofrom_guest_nested(struct kvm_vcpu *vcpu)
 	if (eaddr & (0xFFFUL << 52))
 		return H_PARAMETER;
 
-	buf = kzalloc(n, GFP_KERNEL);
+	buf = kzalloc(n, GFP_KERNEL | __GFP_NOWARN);
 	if (!buf)
 		return H_NO_MEM;
 
-- 
GitLab


From 4a273a94bda87265909aeee5e4771ed49cf583ef Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Fri, 26 Nov 2021 18:06:46 +0100
Subject: [PATCH 3287/4878] w1: Misuse of get_user()/put_user() reported by
 sparse

[ Upstream commit 33dc3e3e99e626ce51f462d883b05856c6c30b1d ]

sparse warnings: (new ones prefixed by >>)
>> drivers/w1/slaves/w1_ds28e04.c:342:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char [noderef] __user *_pu_addr @@     got char *buf @@
   drivers/w1/slaves/w1_ds28e04.c:342:13: sparse:     expected char [noderef] __user *_pu_addr
   drivers/w1/slaves/w1_ds28e04.c:342:13: sparse:     got char *buf
>> drivers/w1/slaves/w1_ds28e04.c:356:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const [noderef] __user *_gu_addr @@     got char const *buf @@
   drivers/w1/slaves/w1_ds28e04.c:356:13: sparse:     expected char const [noderef] __user *_gu_addr
   drivers/w1/slaves/w1_ds28e04.c:356:13: sparse:     got char const *buf

The buffer buf is a failsafe buffer in kernel space, it's not user
memory hence doesn't deserve the use of get_user() or put_user().

Access 'buf' content directly.

Link: https://lore.kernel.org/lkml/202111190526.K5vb7NWC-lkp@intel.com/T/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/d14ed8d71ad4372e6839ae427f91441d3ba0e94d.1637946316.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/w1/slaves/w1_ds28e04.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/drivers/w1/slaves/w1_ds28e04.c b/drivers/w1/slaves/w1_ds28e04.c
index e4f336111edc6..6cef6e2edb892 100644
--- a/drivers/w1/slaves/w1_ds28e04.c
+++ b/drivers/w1/slaves/w1_ds28e04.c
@@ -32,7 +32,7 @@ static int w1_strong_pullup = 1;
 module_param_named(strong_pullup, w1_strong_pullup, int, 0);
 
 /* enable/disable CRC checking on DS28E04-100 memory accesses */
-static char w1_enable_crccheck = 1;
+static bool w1_enable_crccheck = true;
 
 #define W1_EEPROM_SIZE		512
 #define W1_PAGE_COUNT		16
@@ -339,32 +339,18 @@ static BIN_ATTR_RW(pio, 1);
 static ssize_t crccheck_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
 {
-	if (put_user(w1_enable_crccheck + 0x30, buf))
-		return -EFAULT;
-
-	return sizeof(w1_enable_crccheck);
+	return sysfs_emit(buf, "%d\n", w1_enable_crccheck);
 }
 
 static ssize_t crccheck_store(struct device *dev, struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
-	char val;
-
-	if (count != 1 || !buf)
-		return -EINVAL;
+	int err = kstrtobool(buf, &w1_enable_crccheck);
 
-	if (get_user(val, buf))
-		return -EFAULT;
+	if (err)
+		return err;
 
-	/* convert to decimal */
-	val = val - 0x30;
-	if (val != 0 && val != 1)
-		return -EINVAL;
-
-	/* set the new value */
-	w1_enable_crccheck = val;
-
-	return sizeof(w1_enable_crccheck);
+	return count;
 }
 
 static DEVICE_ATTR_RW(crccheck);
-- 
GitLab


From 2e2086f49e08b73dbd47b5ef953083397f06209f Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Tue, 30 Nov 2021 13:39:09 +0000
Subject: [PATCH 3288/4878] nvmem: core: set size for sysfs bin file

[ Upstream commit 86192251033308bb42f1e9813c962989d8ed07ec ]

For some reason we never set the size for nvmem sysfs binary file.
Set this.

Reported-by: Gilles BULOZ <gilles.buloz@kontron.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211130133909.6154-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvmem/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 6b170083cd248..21d89d80d0838 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -222,6 +222,8 @@ static umode_t nvmem_bin_attr_is_visible(struct kobject *kobj,
 	struct device *dev = kobj_to_dev(kobj);
 	struct nvmem_device *nvmem = to_nvmem_device(dev);
 
+	attr->size = nvmem->size;
+
 	return nvmem_bin_attr_get_umode(nvmem);
 }
 
-- 
GitLab


From dfde7afed7116374074e531dfad9919348bef5ac Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 29 Nov 2021 11:21:35 +0100
Subject: [PATCH 3289/4878] dm: fix alloc_dax error handling in alloc_dev

[ Upstream commit d751939235b9b7bc4af15f90a3e99288a8b844a7 ]

Make sure ->dax_dev is NULL on error so that the cleanup path doesn't
trip over an ERR_PTR.

Reported-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211129102203.2243509-2-hch@lst.de
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 19a70f434029b..6030cba5b0382 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1894,8 +1894,10 @@ static struct mapped_device *alloc_dev(int minor)
 	if (IS_ENABLED(CONFIG_DAX_DRIVER)) {
 		md->dax_dev = alloc_dax(md, md->disk->disk_name,
 					&dm_dax_ops, 0);
-		if (IS_ERR(md->dax_dev))
+		if (IS_ERR(md->dax_dev)) {
+			md->dax_dev = NULL;
 			goto bad;
+		}
 	}
 
 	add_disk_no_queue_reg(md->disk);
-- 
GitLab


From 297210783a7a328c971b4f1ec9d380df7598d106 Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Fri, 3 Dec 2021 16:26:40 -0800
Subject: [PATCH 3290/4878] scsi: lpfc: Trigger SLI4 firmware dump before doing
 driver cleanup

[ Upstream commit 7dd2e2a923173d637c272e483966be8e96a72b64 ]

Extraneous teardown routines are present in the firmware dump path causing
altered states in firmware captures.

When a firmware dump is requested via sysfs, trigger the dump immediately
without tearing down structures and changing adapter state.

The driver shall rely on pre-existing firmware error state clean up
handlers to restore the adapter.

Link: https://lore.kernel.org/r/20211204002644.116455-6-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc.h         |  2 +-
 drivers/scsi/lpfc/lpfc_attr.c    | 62 ++++++++++++++++++++------------
 drivers/scsi/lpfc/lpfc_hbadisc.c |  8 ++++-
 drivers/scsi/lpfc/lpfc_sli.c     |  6 ----
 4 files changed, 48 insertions(+), 30 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 93e507677bdcb..0273bf3918ff3 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -763,7 +763,6 @@ struct lpfc_hba {
 #define HBA_DEVLOSS_TMO         0x2000 /* HBA in devloss timeout */
 #define HBA_RRQ_ACTIVE		0x4000 /* process the rrq active list */
 #define HBA_IOQ_FLUSH		0x8000 /* FCP/NVME I/O queues being flushed */
-#define HBA_FW_DUMP_OP		0x10000 /* Skips fn reset before FW dump */
 #define HBA_RECOVERABLE_UE	0x20000 /* Firmware supports recoverable UE */
 #define HBA_FORCED_LINK_SPEED	0x40000 /*
 					 * Firmware supports Forced Link Speed
@@ -772,6 +771,7 @@ struct lpfc_hba {
 #define HBA_FLOGI_ISSUED	0x100000 /* FLOGI was issued */
 #define HBA_DEFER_FLOGI		0x800000 /* Defer FLOGI till read_sparm cmpl */
 
+	struct completion *fw_dump_cmpl; /* cmpl event tracker for fw_dump */
 	uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/
 	struct lpfc_dmabuf slim2p;
 
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 2c59a5bf35390..727b7ba4d8f82 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1536,25 +1536,25 @@ lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
 	before_fc_flag = phba->pport->fc_flag;
 	sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
 
-	/* Disable SR-IOV virtual functions if enabled */
-	if (phba->cfg_sriov_nr_virtfn) {
-		pci_disable_sriov(pdev);
-		phba->cfg_sriov_nr_virtfn = 0;
-	}
+	if (opcode == LPFC_FW_DUMP) {
+		init_completion(&online_compl);
+		phba->fw_dump_cmpl = &online_compl;
+	} else {
+		/* Disable SR-IOV virtual functions if enabled */
+		if (phba->cfg_sriov_nr_virtfn) {
+			pci_disable_sriov(pdev);
+			phba->cfg_sriov_nr_virtfn = 0;
+		}
 
-	if (opcode == LPFC_FW_DUMP)
-		phba->hba_flag |= HBA_FW_DUMP_OP;
+		status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 
-	status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
+		if (status != 0)
+			return status;
 
-	if (status != 0) {
-		phba->hba_flag &= ~HBA_FW_DUMP_OP;
-		return status;
+		/* wait for the device to be quiesced before firmware reset */
+		msleep(100);
 	}
 
-	/* wait for the device to be quiesced before firmware reset */
-	msleep(100);
-
 	reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
 			LPFC_CTL_PDEV_CTL_OFFSET);
 
@@ -1583,24 +1583,42 @@ lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
 		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 				"3153 Fail to perform the requested "
 				"access: x%x\n", reg_val);
+		if (phba->fw_dump_cmpl)
+			phba->fw_dump_cmpl = NULL;
 		return rc;
 	}
 
 	/* keep the original port state */
-	if (before_fc_flag & FC_OFFLINE_MODE)
-		goto out;
-
-	init_completion(&online_compl);
-	job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
-					   LPFC_EVT_ONLINE);
-	if (!job_posted)
+	if (before_fc_flag & FC_OFFLINE_MODE) {
+		if (phba->fw_dump_cmpl)
+			phba->fw_dump_cmpl = NULL;
 		goto out;
+	}
 
-	wait_for_completion(&online_compl);
+	/* Firmware dump will trigger an HA_ERATT event, and
+	 * lpfc_handle_eratt_s4 routine already handles bringing the port back
+	 * online.
+	 */
+	if (opcode == LPFC_FW_DUMP) {
+		wait_for_completion(phba->fw_dump_cmpl);
+	} else  {
+		init_completion(&online_compl);
+		job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
+						   LPFC_EVT_ONLINE);
+		if (!job_posted)
+			goto out;
 
+		wait_for_completion(&online_compl);
+	}
 out:
 	/* in any case, restore the virtual functions enabled as before */
 	if (sriov_nr_virtfn) {
+		/* If fw_dump was performed, first disable to clean up */
+		if (opcode == LPFC_FW_DUMP) {
+			pci_disable_sriov(pdev);
+			phba->cfg_sriov_nr_virtfn = 0;
+		}
+
 		sriov_err =
 			lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
 		if (!sriov_err)
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index f4a672e549716..68ff233f936e5 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -635,10 +635,16 @@ lpfc_work_done(struct lpfc_hba *phba)
 	if (phba->pci_dev_grp == LPFC_PCI_DEV_OC)
 		lpfc_sli4_post_async_mbox(phba);
 
-	if (ha_copy & HA_ERATT)
+	if (ha_copy & HA_ERATT) {
 		/* Handle the error attention event */
 		lpfc_handle_eratt(phba);
 
+		if (phba->fw_dump_cmpl) {
+			complete(phba->fw_dump_cmpl);
+			phba->fw_dump_cmpl = NULL;
+		}
+	}
+
 	if (ha_copy & HA_MBATT)
 		lpfc_sli_handle_mb_event(phba);
 
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 06a23718a7c7f..1a9522baba484 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -4629,12 +4629,6 @@ lpfc_sli4_brdreset(struct lpfc_hba *phba)
 	phba->fcf.fcf_flag = 0;
 	spin_unlock_irq(&phba->hbalock);
 
-	/* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
-	if (phba->hba_flag & HBA_FW_DUMP_OP) {
-		phba->hba_flag &= ~HBA_FW_DUMP_OP;
-		return rc;
-	}
-
 	/* Now physically reset the device */
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 			"0389 Performing PCI function reset!\n");
-- 
GitLab


From af8d07735083276004d71cafc4f7a4710cf108fa Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 7 Dec 2021 17:51:46 +0100
Subject: [PATCH 3291/4878] ALSA: seq: Set upper limit of processed events

[ Upstream commit 6fadb494a638d8b8a55864ecc6ac58194f03f327 ]

Currently ALSA sequencer core tries to process the queued events as
much as possible when they become dispatchable.  If applications try
to queue too massive events to be processed at the very same timing,
the sequencer core would still try to process such all events, either
in the interrupt context or via some notifier; in either away, it
might be a cause of RCU stall or such problems.

As a potential workaround for those problems, this patch adds the
upper limit of the amount of events to be processed.  The remaining
events are processed in the next batch, so they won't be lost.

For the time being, it's limited up to 1000 events per queue, which
should be high enough for any normal usages.

Reported-by: Zqiang <qiang.zhang1211@gmail.com>
Reported-by: syzbot+bb950e68b400ab4f65f8@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211102033222.3849-1-qiang.zhang1211@gmail.com
Link: https://lore.kernel.org/r/20211207165146.2888-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/core/seq/seq_queue.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
index 71a6ea62c3be7..4ff0b927230c2 100644
--- a/sound/core/seq/seq_queue.c
+++ b/sound/core/seq/seq_queue.c
@@ -234,12 +234,15 @@ struct snd_seq_queue *snd_seq_queue_find_name(char *name)
 
 /* -------------------------------------------------------- */
 
+#define MAX_CELL_PROCESSES_IN_QUEUE	1000
+
 void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
 {
 	unsigned long flags;
 	struct snd_seq_event_cell *cell;
 	snd_seq_tick_time_t cur_tick;
 	snd_seq_real_time_t cur_time;
+	int processed = 0;
 
 	if (q == NULL)
 		return;
@@ -262,6 +265,8 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
 		if (!cell)
 			break;
 		snd_seq_dispatch_event(cell, atomic, hop);
+		if (++processed >= MAX_CELL_PROCESSES_IN_QUEUE)
+			goto out; /* the rest processed at the next batch */
 	}
 
 	/* Process time queue... */
@@ -271,14 +276,19 @@ void snd_seq_check_queue(struct snd_seq_queue *q, int atomic, int hop)
 		if (!cell)
 			break;
 		snd_seq_dispatch_event(cell, atomic, hop);
+		if (++processed >= MAX_CELL_PROCESSES_IN_QUEUE)
+			goto out; /* the rest processed at the next batch */
 	}
 
+ out:
 	/* free lock */
 	spin_lock_irqsave(&q->check_lock, flags);
 	if (q->check_again) {
 		q->check_again = 0;
-		spin_unlock_irqrestore(&q->check_lock, flags);
-		goto __again;
+		if (processed < MAX_CELL_PROCESSES_IN_QUEUE) {
+			spin_unlock_irqrestore(&q->check_lock, flags);
+			goto __again;
+		}
 	}
 	q->check_blocked = 0;
 	spin_unlock_irqrestore(&q->check_lock, flags);
-- 
GitLab


From c330442f46ea77db0be8ba37d3b5b67a8b45bed9 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Wed, 8 Dec 2021 09:56:17 -0700
Subject: [PATCH 3292/4878] MIPS: Loongson64: Use three arguments for slti

[ Upstream commit f2c6c22fa83ab2577619009057b3ebcb5305bb03 ]

LLVM's integrated assembler does not support 'slti <reg>, <imm>':

<instantiation>:16:12: error: invalid operand for instruction
 slti $12, (0x6300 | 0x0008)
           ^
arch/mips/kernel/head.S:86:2: note: while in macro instantiation
 kernel_entry_setup # cpu specific setup
 ^
<instantiation>:16:12: error: invalid operand for instruction
 slti $12, (0x6300 | 0x0008)
           ^
arch/mips/kernel/head.S:150:2: note: while in macro instantiation
 smp_slave_setup
 ^

To increase compatibility with LLVM's integrated assembler, use the full
form of 'slti <reg>, <reg>, <imm>', which matches the rest of
arch/mips/. This does not result in any change for GNU as.

Link: https://github.com/ClangBuiltLinux/linux/issues/1526
Reported-by: Ryutaroh Matsumoto <ryutaroh@ict.e.titech.ac.jp>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/include/asm/mach-loongson64/kernel-entry-init.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h b/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h
index 87a5bfbf8cfe9..28572ddfb004a 100644
--- a/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h
+++ b/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h
@@ -36,7 +36,7 @@
 	nop
 	/* Loongson-3A R2/R3 */
 	andi	t0, (PRID_IMP_MASK | PRID_REV_MASK)
-	slti	t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
+	slti	t0, t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
 	bnez	t0, 2f
 	nop
 1:
@@ -71,7 +71,7 @@
 	nop
 	/* Loongson-3A R2/R3 */
 	andi	t0, (PRID_IMP_MASK | PRID_REV_MASK)
-	slti	t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
+	slti	t0, t0, (PRID_IMP_LOONGSON_64C | PRID_REV_LOONGSON3A_R2_0)
 	bnez	t0, 2f
 	nop
 1:
-- 
GitLab


From 21125e011620b8f77786c8a231100b6395fdf494 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Mon, 27 Sep 2021 17:12:39 +0200
Subject: [PATCH 3293/4878] powerpc/40x: Map 32Mbytes of memory at startup

[ Upstream commit 06e7cbc29e97b4713b4ea6def04ae8501a7d1a59 ]

As reported by Carlo, 16Mbytes is not enough with modern kernels
that tend to be a bit big, so map another 16M page at boot.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/89b5f974a7fa5011206682cd092e2c905530ff46.1632755552.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/head_40x.S | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
index a1ae00689e0f4..aeb9bc9958749 100644
--- a/arch/powerpc/kernel/head_40x.S
+++ b/arch/powerpc/kernel/head_40x.S
@@ -27,6 +27,7 @@
 
 #include <linux/init.h>
 #include <linux/pgtable.h>
+#include <linux/sizes.h>
 #include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
@@ -626,7 +627,7 @@ start_here:
 	b	.		/* prevent prefetch past rfi */
 
 /* Set up the initial MMU state so we can do the first level of
- * kernel initialization.  This maps the first 16 MBytes of memory 1:1
+ * kernel initialization.  This maps the first 32 MBytes of memory 1:1
  * virtual to physical and more importantly sets the cache mode.
  */
 initial_mmu:
@@ -663,6 +664,12 @@ initial_mmu:
 	tlbwe	r4,r0,TLB_DATA		/* Load the data portion of the entry */
 	tlbwe	r3,r0,TLB_TAG		/* Load the tag portion of the entry */
 
+	li	r0,62			/* TLB slot 62 */
+	addis	r4,r4,SZ_16M@h
+	addis	r3,r3,SZ_16M@h
+	tlbwe	r4,r0,TLB_DATA		/* Load the data portion of the entry */
+	tlbwe	r3,r0,TLB_TAG		/* Load the tag portion of the entry */
+
 	isync
 
 	/* Establish the exception vector base
-- 
GitLab


From 044164b4198ea0bcb219f1dba876a622faff7a23 Mon Sep 17 00:00:00 2001
From: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Date: Tue, 7 Dec 2021 10:05:57 -0300
Subject: [PATCH 3294/4878] selftests/powerpc/spectre_v2: Return skip code when
 miss_percent is high

[ Upstream commit 3c42e9542050d49610077e083c7c3f5fd5e26820 ]

A mis-match between reported and actual mitigation is not restricted to the
Vulnerable case. The guest might also report the mitigation as "Software
count cache flush" and the host will still mitigate with branch cache
disabled.

So, instead of skipping depending on the detected mitigation, simply skip
whenever the detected miss_percent is the expected one for a fully
mitigated system, that is, above 95%.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211207130557.40566-1-cascardo@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/powerpc/security/spectre_v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/powerpc/security/spectre_v2.c b/tools/testing/selftests/powerpc/security/spectre_v2.c
index adc2b7294e5fd..83647b8277e7d 100644
--- a/tools/testing/selftests/powerpc/security/spectre_v2.c
+++ b/tools/testing/selftests/powerpc/security/spectre_v2.c
@@ -193,7 +193,7 @@ int spectre_v2_test(void)
 			 * We are not vulnerable and reporting otherwise, so
 			 * missing such a mismatch is safe.
 			 */
-			if (state == VULNERABLE)
+			if (miss_percent > 95)
 				return 4;
 
 			return 1;
-- 
GitLab


From f2e658d9bda2ad5f8ace6f46494d1cf04e0c5b51 Mon Sep 17 00:00:00 2001
From: Hari Bathini <hbathini@linux.ibm.com>
Date: Tue, 7 Dec 2021 16:07:18 +0530
Subject: [PATCH 3295/4878] powerpc: handle kdump appropriately with
 crash_kexec_post_notifiers option

[ Upstream commit 219572d2fc4135b5ce65c735d881787d48b10e71 ]

Kdump can be triggered after panic_notifers since commit f06e5153f4ae2
("kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump
after panic_notifers") introduced crash_kexec_post_notifiers option.
But using this option would mean smp_send_stop(), that marks all other
CPUs as offline, gets called before kdump is triggered. As a result,
kdump routines fail to save other CPUs' registers. To fix this, kdump
friendly crash_smp_send_stop() function was introduced with kernel
commit 0ee59413c967 ("x86/panic: replace smp_send_stop() with kdump
friendly version in panic path"). Override this kdump friendly weak
function to handle crash_kexec_post_notifiers option appropriately
on powerpc.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
[Fixed signature of crash_stop_this_cpu() - reported by lkp@intel.com]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211207103719.91117-1-hbathini@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/smp.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 50aeef08aa470..d993f28107afa 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -594,6 +594,36 @@ void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
 }
 #endif
 
+#ifdef CONFIG_NMI_IPI
+static void crash_stop_this_cpu(struct pt_regs *regs)
+#else
+static void crash_stop_this_cpu(void *dummy)
+#endif
+{
+	/*
+	 * Just busy wait here and avoid marking CPU as offline to ensure
+	 * register data is captured appropriately.
+	 */
+	while (1)
+		cpu_relax();
+}
+
+void crash_smp_send_stop(void)
+{
+	static bool stopped = false;
+
+	if (stopped)
+		return;
+
+	stopped = true;
+
+#ifdef CONFIG_NMI_IPI
+	smp_send_nmi_ipi(NMI_IPI_ALL_OTHERS, crash_stop_this_cpu, 1000000);
+#else
+	smp_call_function(crash_stop_this_cpu, NULL, 0);
+#endif /* CONFIG_NMI_IPI */
+}
+
 #ifdef CONFIG_NMI_IPI
 static void nmi_stop_this_cpu(struct pt_regs *regs)
 {
-- 
GitLab


From 15be042e7fd9295d32c6104088fb4351519097c6 Mon Sep 17 00:00:00 2001
From: Hari Bathini <hbathini@linux.ibm.com>
Date: Tue, 7 Dec 2021 16:07:19 +0530
Subject: [PATCH 3296/4878] powerpc/fadump: Fix inaccurate CPU state info in
 vmcore generated with panic

[ Upstream commit 06e629c25daa519be620a8c17359ae8fc7a2e903 ]

In panic path, fadump is triggered via a panic notifier function.
Before calling panic notifier functions, smp_send_stop() gets called,
which stops all CPUs except the panic'ing CPU. Commit 8389b37dffdc
("powerpc: stop_this_cpu: remove the cpu from the online map.") and
again commit bab26238bbd4 ("powerpc: Offline CPU in stop_this_cpu()")
started marking CPUs as offline while stopping them. So, if a kernel
has either of the above commits, vmcore captured with fadump via panic
path would not process register data for all CPUs except the panic'ing
CPU. Sample output of crash-utility with such vmcore:

  # crash vmlinux vmcore
  ...
        KERNEL: vmlinux
      DUMPFILE: vmcore  [PARTIAL DUMP]
          CPUS: 1
          DATE: Wed Nov 10 09:56:34 EST 2021
        UPTIME: 00:00:42
  LOAD AVERAGE: 2.27, 0.69, 0.24
         TASKS: 183
      NODENAME: XXXXXXXXX
       RELEASE: 5.15.0+
       VERSION: #974 SMP Wed Nov 10 04:18:19 CST 2021
       MACHINE: ppc64le  (2500 Mhz)
        MEMORY: 8 GB
         PANIC: "Kernel panic - not syncing: sysrq triggered crash"
           PID: 3394
       COMMAND: "bash"
          TASK: c0000000150a5f80  [THREAD_INFO: c0000000150a5f80]
           CPU: 1
         STATE: TASK_RUNNING (PANIC)

  crash> p -x __cpu_online_mask
  __cpu_online_mask = $1 = {
    bits = {0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}
  }
  crash>
  crash>
  crash> p -x __cpu_active_mask
  __cpu_active_mask = $2 = {
    bits = {0xff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}
  }
  crash>

While this has been the case since fadump was introduced, the issue
was not identified for two probable reasons:

  - In general, the bulk of the vmcores analyzed were from crash
    due to exception.

  - The above did change since commit 8341f2f222d7 ("sysrq: Use
    panic() to force a crash") started using panic() instead of
    deferencing NULL pointer to force a kernel crash. But then
    commit de6e5d38417e ("powerpc: smp_send_stop do not offline
    stopped CPUs") stopped marking CPUs as offline till kernel
    commit bab26238bbd4 ("powerpc: Offline CPU in stop_this_cpu()")
    reverted that change.

To ensure post processing register data of all other CPUs happens
as intended, let panic() function take the crash friendly path (read
crash_smp_send_stop()) with the help of crash_kexec_post_notifiers
option. Also, as register data for all CPUs is captured by f/w, skip
IPI callbacks here for fadump, to avoid any complications in finding
the right backtraces.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211207103719.91117-2-hbathini@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/fadump.c |  8 ++++++++
 arch/powerpc/kernel/smp.c    | 10 ++++++++++
 2 files changed, 18 insertions(+)

diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index eddf362caedce..c3bb800dc4352 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -1641,6 +1641,14 @@ int __init setup_fadump(void)
 	else if (fw_dump.reserve_dump_area_size)
 		fw_dump.ops->fadump_init_mem_struct(&fw_dump);
 
+	/*
+	 * In case of panic, fadump is triggered via ppc_panic_event()
+	 * panic notifier. Setting crash_kexec_post_notifiers to 'true'
+	 * lets panic() function take crash friendly path before panic
+	 * notifiers are invoked.
+	 */
+	crash_kexec_post_notifiers = true;
+
 	return 1;
 }
 subsys_initcall(setup_fadump);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index d993f28107afa..cf99f57aed822 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -60,6 +60,7 @@
 #include <asm/cpu_has_feature.h>
 #include <asm/ftrace.h>
 #include <asm/kup.h>
+#include <asm/fadump.h>
 
 #ifdef DEBUG
 #include <asm/udbg.h>
@@ -612,6 +613,15 @@ void crash_smp_send_stop(void)
 {
 	static bool stopped = false;
 
+	/*
+	 * In case of fadump, register data for all CPUs is captured by f/w
+	 * on ibm,os-term rtas call. Skip IPI callbacks to other CPUs before
+	 * this rtas call to avoid tricky post processing of those CPUs'
+	 * backtraces.
+	 */
+	if (should_fadump_crash())
+		return;
+
 	if (stopped)
 		return;
 
-- 
GitLab


From ce34b03a71b62b273e9fb7eb314ac417efb1a427 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 14 Dec 2021 11:04:29 +0100
Subject: [PATCH 3297/4878] udf: Fix error handling in udf_new_inode()

[ Upstream commit f05f2429eec60851b98bdde213de31dab697c01b ]

When memory allocation of iinfo or block allocation fails, already
allocated struct udf_inode_info gets freed with iput() and
udf_evict_inode() may look at inode fields which are not properly
initialized. Fix it by marking inode bad before dropping reference to it
in udf_new_inode().

Reported-by: syzbot+9ca499bb57a2b9e4c652@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/udf/ialloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 84ed23edebfd3..87a77bf70ee19 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -77,6 +77,7 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode)
 					GFP_KERNEL);
 	}
 	if (!iinfo->i_data) {
+		make_bad_inode(inode);
 		iput(inode);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -86,6 +87,7 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode)
 			      dinfo->i_location.partitionReferenceNum,
 			      start, &err);
 	if (err) {
+		make_bad_inode(inode);
 		iput(inode);
 		return ERR_PTR(err);
 	}
-- 
GitLab


From bc2d961d821b824bc74df724892d5c7f57c72dc2 Mon Sep 17 00:00:00 2001
From: Ye Guojin <ye.guojin@zte.com.cn>
Date: Tue, 16 Nov 2021 08:10:51 +0000
Subject: [PATCH 3298/4878] MIPS: OCTEON: add put_device() after
 of_find_device_by_node()

[ Upstream commit 858779df1c0787d3fec827fb705708df9ebdb15b ]

This was found by coccicheck:
./arch/mips/cavium-octeon/octeon-platform.c, 332, 1-7, ERROR missing
put_device; call of_find_device_by_node on line 324, but without a
corresponding object release within this function.
./arch/mips/cavium-octeon/octeon-platform.c, 395, 1-7, ERROR missing
put_device; call of_find_device_by_node on line 387, but without a
corresponding object release within this function.
./arch/mips/cavium-octeon/octeon-usb.c, 512, 3-9, ERROR missing
put_device; call of_find_device_by_node on line 515, but without a
corresponding object release within this function.
./arch/mips/cavium-octeon/octeon-usb.c, 543, 1-7, ERROR missing
put_device; call of_find_device_by_node on line 515, but without a
corresponding object release within this function.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/cavium-octeon/octeon-platform.c | 2 ++
 arch/mips/cavium-octeon/octeon-usb.c      | 1 +
 2 files changed, 3 insertions(+)

diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index d56e9b9d2e434..a994022e32c9f 100644
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -328,6 +328,7 @@ static int __init octeon_ehci_device_init(void)
 
 	pd->dev.platform_data = &octeon_ehci_pdata;
 	octeon_ehci_hw_start(&pd->dev);
+	put_device(&pd->dev);
 
 	return ret;
 }
@@ -391,6 +392,7 @@ static int __init octeon_ohci_device_init(void)
 
 	pd->dev.platform_data = &octeon_ohci_pdata;
 	octeon_ohci_hw_start(&pd->dev);
+	put_device(&pd->dev);
 
 	return ret;
 }
diff --git a/arch/mips/cavium-octeon/octeon-usb.c b/arch/mips/cavium-octeon/octeon-usb.c
index 950e6c6e86297..fa87e5aa1811d 100644
--- a/arch/mips/cavium-octeon/octeon-usb.c
+++ b/arch/mips/cavium-octeon/octeon-usb.c
@@ -544,6 +544,7 @@ static int __init dwc3_octeon_device_init(void)
 			devm_iounmap(&pdev->dev, base);
 			devm_release_mem_region(&pdev->dev, res->start,
 						resource_size(res));
+			put_device(&pdev->dev);
 		}
 	} while (node != NULL);
 
-- 
GitLab


From f09f7ccb28bbe2aaf343faff890e204b2c16f1f7 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 16 Dec 2021 14:32:27 +0000
Subject: [PATCH 3299/4878] irqchip/gic-v4: Disable redistributors' view of the
 VPE table at boot time

[ Upstream commit 79a7f77b9b154d572bd9d2f1eecf58c4d018d8e2 ]

Jay Chen reported that using a kdump kernel on a GICv4.1 system
results in a RAS error being delivered when the secondary kernel
configures the ITS's view of the new VPE table.

As it turns out, that's because each RD still has a pointer to
the previous instance of the VPE table, and that particular
implementation is very upset by seeing two bits of the HW that
should point to the same table with different values.

To solve this, let's invalidate any reference that any RD has to
the VPE table when discovering the RDs. The ITS can then be
programmed as expected.

Reported-by: Jay Chen <jkchen@linux.alibaba.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/20211214064716.21407-1-jkchen@linux.alibaba.com
Link: https://lore.kernel.org/r/20211216144804.1578566-1-maz@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-gic-v3.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 1bdb7acf445f4..04d1b3963b6ba 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -915,6 +915,22 @@ static int __gic_update_rdist_properties(struct redist_region *region,
 {
 	u64 typer = gic_read_typer(ptr + GICR_TYPER);
 
+	/* Boot-time cleanip */
+	if ((typer & GICR_TYPER_VLPIS) && (typer & GICR_TYPER_RVPEID)) {
+		u64 val;
+
+		/* Deactivate any present vPE */
+		val = gicr_read_vpendbaser(ptr + SZ_128K + GICR_VPENDBASER);
+		if (val & GICR_VPENDBASER_Valid)
+			gicr_write_vpendbaser(GICR_VPENDBASER_PendingLast,
+					      ptr + SZ_128K + GICR_VPENDBASER);
+
+		/* Mark the VPE table as invalid */
+		val = gicr_read_vpropbaser(ptr + SZ_128K + GICR_VPROPBASER);
+		val &= ~GICR_VPROPBASER_4_1_VALID;
+		gicr_write_vpropbaser(val, ptr + SZ_128K + GICR_VPROPBASER);
+	}
+
 	gic_data.rdists.has_vlpis &= !!(typer & GICR_TYPER_VLPIS);
 
 	/* RVPEID implies some form of DirectLPI, no matter what the doc says... :-/ */
-- 
GitLab


From da7df943e25482d602f6e9a897b20c0eed277f5c Mon Sep 17 00:00:00 2001
From: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
Date: Wed, 15 Dec 2021 17:12:01 +0200
Subject: [PATCH 3300/4878] i2c: designware-pci: Fix to change data types of
 hcnt and lcnt parameters

[ Upstream commit d52097010078c1844348dc0e467305e5f90fd317 ]

The data type of hcnt and lcnt in the struct dw_i2c_dev is of type u16.
It's better to have same data type in struct dw_scl_sda_cfg as well.

Reported-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-designware-pcidrv.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 55c83a7a24f36..56c87ade0e89d 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -37,10 +37,10 @@ enum dw_pci_ctl_id_t {
 };
 
 struct dw_scl_sda_cfg {
-	u32 ss_hcnt;
-	u32 fs_hcnt;
-	u32 ss_lcnt;
-	u32 fs_lcnt;
+	u16 ss_hcnt;
+	u16 fs_hcnt;
+	u16 ss_lcnt;
+	u16 fs_lcnt;
 	u32 sda_hold;
 };
 
-- 
GitLab


From de9a936b04c541a52bed00a5d3e5b975c508e724 Mon Sep 17 00:00:00 2001
From: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Date: Thu, 16 Dec 2021 17:50:14 +0800
Subject: [PATCH 3301/4878] MIPS: Octeon: Fix build errors using clang
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 95339b70677dc6f9a2d669c4716058e71b8dc1c7 ]

A large number of the following errors is reported when compiling
with clang:

  cvmx-bootinfo.h:326:3: error: adding 'int' to a string does not append to the string [-Werror,-Wstring-plus-int]
                  ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NULL)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  cvmx-bootinfo.h:321:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
          case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                         ~~~^~~~
  cvmx-bootinfo.h:326:3: note: use array indexing to silence this warning
  cvmx-bootinfo.h:321:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
          case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
                          ^

Follow the prompts to use the address operator '&' to fix this error.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/include/asm/octeon/cvmx-bootinfo.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/octeon/cvmx-bootinfo.h b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
index c114a7ba0badd..e77e8b7c00838 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootinfo.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootinfo.h
@@ -317,7 +317,7 @@ enum cvmx_chip_types_enum {
 
 /* Functions to return string based on type */
 #define ENUM_BRD_TYPE_CASE(x) \
-	case x: return(#x + 16);	/* Skip CVMX_BOARD_TYPE_ */
+	case x: return (&#x[16]);	/* Skip CVMX_BOARD_TYPE_ */
 static inline const char *cvmx_board_type_to_string(enum
 						    cvmx_board_types_enum type)
 {
@@ -408,7 +408,7 @@ static inline const char *cvmx_board_type_to_string(enum
 }
 
 #define ENUM_CHIP_TYPE_CASE(x) \
-	case x: return(#x + 15);	/* Skip CVMX_CHIP_TYPE */
+	case x: return (&#x[15]);	/* Skip CVMX_CHIP_TYPE */
 static inline const char *cvmx_chip_type_to_string(enum
 						   cvmx_chip_types_enum type)
 {
-- 
GitLab


From 0df51040089dd5a9dfd9e3f902becbf9740c582a Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 22 Dec 2021 10:08:42 +0100
Subject: [PATCH 3302/4878] scsi: sr: Don't use GFP_DMA

[ Upstream commit d94d94969a4ba07a43d62429c60372320519c391 ]

The allocated buffers are used as a command payload, for which the block
layer and/or DMA API do the proper bounce buffering if needed.

Link: https://lore.kernel.org/r/20211222090842.920724-1-hch@lst.de
Reported-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/sr.c        | 2 +-
 drivers/scsi/sr_vendor.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 4cb4ab9c6137e..464418413ced0 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -917,7 +917,7 @@ static void get_capabilities(struct scsi_cd *cd)
 
 
 	/* allocate transfer buffer */
-	buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
+	buffer = kmalloc(512, GFP_KERNEL);
 	if (!buffer) {
 		sr_printk(KERN_ERR, cd, "out of memory.\n");
 		return;
diff --git a/drivers/scsi/sr_vendor.c b/drivers/scsi/sr_vendor.c
index 1f988a1b9166f..a61635326ae0a 100644
--- a/drivers/scsi/sr_vendor.c
+++ b/drivers/scsi/sr_vendor.c
@@ -131,7 +131,7 @@ int sr_set_blocklength(Scsi_CD *cd, int blocklength)
 	if (cd->vendor == VENDOR_TOSHIBA)
 		density = (blocklength > 2048) ? 0x81 : 0x83;
 
-	buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
+	buffer = kmalloc(512, GFP_KERNEL);
 	if (!buffer)
 		return -ENOMEM;
 
@@ -179,7 +179,7 @@ int sr_cd_check(struct cdrom_device_info *cdi)
 	if (cd->cdi.mask & CDC_MULTI_SESSION)
 		return 0;
 
-	buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
+	buffer = kmalloc(512, GFP_KERNEL);
 	if (!buffer)
 		return -ENOMEM;
 
-- 
GitLab


From f28672eef4a9f401b617ddd9d394aaa35d634c61 Mon Sep 17 00:00:00 2001
From: Tzung-Bi Shih <tzungbi@google.com>
Date: Fri, 24 Dec 2021 14:47:16 +0800
Subject: [PATCH 3303/4878] ASoC: mediatek: mt8173: fix device_node leak

[ Upstream commit 493433785df0075afc0c106ab65f10a605d0b35d ]

Fixes the device_node leak.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20211224064719.2031210-2-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/mediatek/mt8173/mt8173-max98090.c      | 3 +++
 sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c | 2 ++
 sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 2 ++
 sound/soc/mediatek/mt8173/mt8173-rt5650.c        | 2 ++
 4 files changed, 9 insertions(+)

diff --git a/sound/soc/mediatek/mt8173/mt8173-max98090.c b/sound/soc/mediatek/mt8173/mt8173-max98090.c
index fc94314bfc02f..3bdd4931316cd 100644
--- a/sound/soc/mediatek/mt8173/mt8173-max98090.c
+++ b/sound/soc/mediatek/mt8173/mt8173-max98090.c
@@ -180,6 +180,9 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(codec_node);
+	of_node_put(platform_node);
 	return ret;
 }
 
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
index 0f28dc2217c09..390da5bf727eb 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
@@ -218,6 +218,8 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(platform_node);
 	return ret;
 }
 
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
index 077c6ee067806..c8e4e85e10575 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
@@ -285,6 +285,8 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(platform_node);
 	return ret;
 }
 
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
index c28ebf891cb05..e168d31f44459 100644
--- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c
+++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c
@@ -323,6 +323,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
+
+	of_node_put(platform_node);
 	return ret;
 }
 
-- 
GitLab


From ff08cf1e34a17c1205630a9682640b784932970b Mon Sep 17 00:00:00 2001
From: Tzung-Bi Shih <tzungbi@google.com>
Date: Fri, 24 Dec 2021 14:47:17 +0800
Subject: [PATCH 3304/4878] ASoC: mediatek: mt8183: fix device_node leak

[ Upstream commit cb006006fe6221f092fadaffd3f219288304c9ad ]

Fixes the device_node leak.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20211224064719.2031210-3-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c         | 6 +++++-
 sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c | 7 ++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
index 20d31b69a5c00..9cc0f26b08fbc 100644
--- a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
@@ -787,7 +787,11 @@ static int mt8183_da7219_max98357_dev_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	return devm_snd_soc_register_card(&pdev->dev, card);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	of_node_put(platform_node);
+	of_node_put(hdmi_codec);
+	return ret;
 }
 
 #ifdef CONFIG_OF
diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index 79ba2f2d84522..14ce8b93597f3 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -720,7 +720,12 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 				 __func__, ret);
 	}
 
-	return devm_snd_soc_register_card(&pdev->dev, card);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	of_node_put(platform_node);
+	of_node_put(ec_codec);
+	of_node_put(hdmi_codec);
+	return ret;
 }
 
 #ifdef CONFIG_OF
-- 
GitLab


From 082ff9e12b4a1c40142a1710f0534e65c48f1d51 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 24 Dec 2021 08:21:03 +0000
Subject: [PATCH 3305/4878] phy: mediatek: Fix missing check in
 mtk_mipi_tx_probe

[ Upstream commit 399c91c3f30531593e5ff6ca7b53f47092128669 ]

The of_device_get_match_data() function may return NULL.
Add check to prevent potential null dereference.

Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20211224082103.7658-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/mediatek/mtk_mipi_tx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
index 8cee2591e7284..ccc742dc78bd9 100644
--- a/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
+++ b/drivers/gpu/drm/mediatek/mtk_mipi_tx.c
@@ -147,6 +147,8 @@ static int mtk_mipi_tx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mipi_tx->driver_data = of_device_get_match_data(dev);
+	if (!mipi_tx->driver_data)
+		return -ENODEV;
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	mipi_tx->regs = devm_ioremap_resource(dev, mem);
-- 
GitLab


From 43e94431c313ca2270584a106da36b02d65978c8 Mon Sep 17 00:00:00 2001
From: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Date: Mon, 6 Dec 2021 20:07:58 +0100
Subject: [PATCH 3306/4878] rpmsg: core: Clean up resources on announce_create
 failure.

commit 8066c615cb69b7da8a94f59379847b037b3a5e46 upstream.

During the rpmsg_dev_probe, if rpdev->ops->announce_create returns an
error, the rpmsg device and default endpoint should be freed before
exiting the function.

Fixes: 5e619b48677c ("rpmsg: Split rpmsg core and virtio backend")
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211206190758.10004-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rpmsg/rpmsg_core.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index 91de940896e3d..028ca5961bc2a 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -473,13 +473,25 @@ static int rpmsg_dev_probe(struct device *dev)
 	err = rpdrv->probe(rpdev);
 	if (err) {
 		dev_err(dev, "%s: failed: %d\n", __func__, err);
-		if (ept)
-			rpmsg_destroy_ept(ept);
-		goto out;
+		goto destroy_ept;
 	}
 
-	if (ept && rpdev->ops->announce_create)
+	if (ept && rpdev->ops->announce_create) {
 		err = rpdev->ops->announce_create(rpdev);
+		if (err) {
+			dev_err(dev, "failed to announce creation\n");
+			goto remove_rpdev;
+		}
+	}
+
+	return 0;
+
+remove_rpdev:
+	if (rpdrv->remove)
+		rpdrv->remove(rpdev);
+destroy_ept:
+	if (ept)
+		rpmsg_destroy_ept(ept);
 out:
 	return err;
 }
-- 
GitLab


From 2031e0246e459cea7a01b342b5e4b87de8fc090c Mon Sep 17 00:00:00 2001
From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Fri, 17 Dec 2021 10:03:30 +0100
Subject: [PATCH 3307/4878] crypto: omap-aes - Fix broken pm_runtime_and_get()
 usage

commit c2aec59be093bd44627bc4f6bc67e4614a93a7b6 upstream.

This fix is basically the same as 3d6b661330a7 ("crypto: stm32 -
Revert broken pm_runtime_resume_and_get changes"), just for the omap
driver. If the return value isn't used, then pm_runtime_get_sync()
has to be used for ensuring that the usage count is balanced.

Fixes: 1f34cc4a8da3 ("crypto: omap-aes - Fix PM reference leak on omap-aes.c")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/omap-aes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index 9b968ac4ee7b6..a196bb8b17010 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -1302,7 +1302,7 @@ static int omap_aes_suspend(struct device *dev)
 
 static int omap_aes_resume(struct device *dev)
 {
-	pm_runtime_resume_and_get(dev);
+	pm_runtime_get_sync(dev);
 	return 0;
 }
 #endif
-- 
GitLab


From 9e6ff2d5725b70b6f9430597a072cbbc0b36223f Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Mon, 20 Dec 2021 20:50:22 +0100
Subject: [PATCH 3308/4878] crypto: stm32/crc32 - Fix kernel BUG triggered in
 probe()

commit 29009604ad4e3ef784fd9b9fef6f23610ddf633d upstream.

The include/linux/crypto.h struct crypto_alg field cra_driver_name description
states "Unique name of the transformation provider. " ... " this contains the
name of the chip or provider and the name of the transformation algorithm."

In case of the stm32-crc driver, field cra_driver_name is identical for all
registered transformation providers and set to the name of the driver itself,
which is incorrect. This patch fixes it by assigning a unique cra_driver_name
to each registered transformation provider.

The kernel crash is triggered when the driver calls crypto_register_shashes()
which calls crypto_register_shash(), which calls crypto_register_alg(), which
calls __crypto_register_alg(), which returns -EEXIST, which is propagated
back through this call chain. Upon -EEXIST from crypto_register_shash(), the
crypto_register_shashes() starts unregistering the providers back, and calls
crypto_unregister_shash(), which calls crypto_unregister_alg(), and this is
where the BUG() triggers due to incorrect cra_refcnt.

Fixes: b51dbe90912a ("crypto: stm32 - Support for STM32 CRC32 crypto module")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: <stable@vger.kernel.org> # 4.12+
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Fabien Dessenne <fabien.dessenne@st.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Lionel Debieve <lionel.debieve@st.com>
Cc: Nicolas Toromanoff <nicolas.toromanoff@st.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-crypto@vger.kernel.org
Acked-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/stm32/stm32-crc32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/stm32/stm32-crc32.c b/drivers/crypto/stm32/stm32-crc32.c
index 75867c0b00172..be1bf39a317de 100644
--- a/drivers/crypto/stm32/stm32-crc32.c
+++ b/drivers/crypto/stm32/stm32-crc32.c
@@ -279,7 +279,7 @@ static struct shash_alg algs[] = {
 		.digestsize     = CHKSUM_DIGEST_SIZE,
 		.base           = {
 			.cra_name               = "crc32",
-			.cra_driver_name        = DRIVER_NAME,
+			.cra_driver_name        = "stm32-crc32-crc32",
 			.cra_priority           = 200,
 			.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
 			.cra_blocksize          = CHKSUM_BLOCK_SIZE,
@@ -301,7 +301,7 @@ static struct shash_alg algs[] = {
 		.digestsize     = CHKSUM_DIGEST_SIZE,
 		.base           = {
 			.cra_name               = "crc32c",
-			.cra_driver_name        = DRIVER_NAME,
+			.cra_driver_name        = "stm32-crc32-crc32c",
 			.cra_priority           = 200,
 			.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
 			.cra_blocksize          = CHKSUM_BLOCK_SIZE,
-- 
GitLab


From 4f0762ac32b57bc52fc8357641962b669c42269b Mon Sep 17 00:00:00 2001
From: Meng Li <Meng.Li@windriver.com>
Date: Mon, 1 Nov 2021 11:13:53 +0800
Subject: [PATCH 3309/4878] crypto: caam - replace this_cpu_ptr with
 raw_cpu_ptr
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit efd21e10fc3bf4c6da122470a5ae89ec4ed8d180 upstream.

When enable the kernel debug config, there is below calltrace detected:
BUG: using smp_processor_id() in preemptible [00000000] code: cryptomgr_test/339
caller is debug_smp_processor_id+0x20/0x30
CPU: 9 PID: 339 Comm: cryptomgr_test Not tainted 5.10.63-yocto-standard #1
Hardware name: NXP Layerscape LX2160ARDB (DT)
Call trace:
 dump_backtrace+0x0/0x1a0
 show_stack+0x24/0x30
 dump_stack+0xf0/0x13c
 check_preemption_disabled+0x100/0x110
 debug_smp_processor_id+0x20/0x30
 dpaa2_caam_enqueue+0x10c/0x25c
 ......
 cryptomgr_test+0x38/0x60
 kthread+0x158/0x164
 ret_from_fork+0x10/0x38
According to the comment in commit ac5d15b4519f("crypto: caam/qi2
 - use affine DPIOs "), because preemption is no longer disabled
while trying to enqueue an FQID, it might be possible to run the
enqueue on a different CPU(due to migration, when in process context),
however this wouldn't be a functionality issue. But there will be
above calltrace when enable kernel debug config. So, replace this_cpu_ptr
with raw_cpu_ptr to avoid above call trace.

Fixes: ac5d15b4519f ("crypto: caam/qi2 - use affine DPIOs")
Cc: stable@vger.kernel.org
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/caam/caamalg_qi2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c
index a780e627838ae..5a40c7d10cc9a 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -5467,7 +5467,7 @@ int dpaa2_caam_enqueue(struct device *dev, struct caam_request *req)
 	dpaa2_fd_set_len(&fd, dpaa2_fl_get_len(&req->fd_flt[1]));
 	dpaa2_fd_set_flc(&fd, req->flc_dma);
 
-	ppriv = this_cpu_ptr(priv->ppriv);
+	ppriv = raw_cpu_ptr(priv->ppriv);
 	for (i = 0; i < (priv->dpseci_attr.num_tx_queues << 1); i++) {
 		err = dpaa2_io_service_enqueue_fq(ppriv->dpio, ppriv->req_fqid,
 						  &fd);
-- 
GitLab


From 76006d33f1c8cabe28e5f3adfad0f38f273195ad Mon Sep 17 00:00:00 2001
From: Petr Cvachoucek <cvachoucek@gmail.com>
Date: Mon, 30 Aug 2021 21:20:37 +0200
Subject: [PATCH 3310/4878] ubifs: Error path in ubifs_remount_rw() seems to
 wrongly free write buffers

commit 3fea4d9d160186617ff40490ae01f4f4f36b28ff upstream.

it seems freeing the write buffers in the error path of the
ubifs_remount_rw() is wrong. It leads later to a kernel oops like this:

[10016.431274] UBIFS (ubi0:0): start fixing up free space
[10090.810042] UBIFS (ubi0:0): free space fixup complete
[10090.814623] UBIFS error (ubi0:0 pid 512): ubifs_remount_fs: cannot
spawn "ubifs_bgt0_0", error -4
[10101.915108] UBIFS (ubi0:0): background thread "ubifs_bgt0_0" started,
PID 517
[10105.275498] Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000030
[10105.284352] Mem abort info:
[10105.287160]   ESR = 0x96000006
[10105.290252]   EC = 0x25: DABT (current EL), IL = 32 bits
[10105.295592]   SET = 0, FnV = 0
[10105.298652]   EA = 0, S1PTW = 0
[10105.301848] Data abort info:
[10105.304723]   ISV = 0, ISS = 0x00000006
[10105.308573]   CM = 0, WnR = 0
[10105.311564] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000f03d1000
[10105.318034] [0000000000000030] pgd=00000000f6cee003,
pud=00000000f4884003, pmd=0000000000000000
[10105.326783] Internal error: Oops: 96000006 [#1] PREEMPT SMP
[10105.332355] Modules linked in: ath10k_pci ath10k_core ath mac80211
libarc4 cfg80211 nvme nvme_core cryptodev(O)
[10105.342468] CPU: 3 PID: 518 Comm: touch Tainted: G           O
5.4.3 #1
[10105.349517] Hardware name: HYPEX CPU (DT)
[10105.353525] pstate: 40000005 (nZcv daif -PAN -UAO)
[10105.358324] pc : atomic64_try_cmpxchg_acquire.constprop.22+0x8/0x34
[10105.364596] lr : mutex_lock+0x1c/0x34
[10105.368253] sp : ffff000075633aa0
[10105.371563] x29: ffff000075633aa0 x28: 0000000000000001
[10105.376874] x27: ffff000076fa80c8 x26: 0000000000000004
[10105.382185] x25: 0000000000000030 x24: 0000000000000000
[10105.387495] x23: 0000000000000000 x22: 0000000000000038
[10105.392807] x21: 000000000000000c x20: ffff000076fa80c8
[10105.398119] x19: ffff000076fa8000 x18: 0000000000000000
[10105.403429] x17: 0000000000000000 x16: 0000000000000000
[10105.408741] x15: 0000000000000000 x14: fefefefefefefeff
[10105.414052] x13: 0000000000000000 x12: 0000000000000fe0
[10105.419364] x11: 0000000000000fe0 x10: ffff000076709020
[10105.424675] x9 : 0000000000000000 x8 : 00000000000000a0
[10105.429986] x7 : ffff000076fa80f4 x6 : 0000000000000030
[10105.435297] x5 : 0000000000000000 x4 : 0000000000000000
[10105.440609] x3 : 0000000000000000 x2 : ffff00006f276040
[10105.445920] x1 : ffff000075633ab8 x0 : 0000000000000030
[10105.451232] Call trace:
[10105.453676]  atomic64_try_cmpxchg_acquire.constprop.22+0x8/0x34
[10105.459600]  ubifs_garbage_collect+0xb4/0x334
[10105.463956]  ubifs_budget_space+0x398/0x458
[10105.468139]  ubifs_create+0x50/0x180
[10105.471712]  path_openat+0x6a0/0x9b0
[10105.475284]  do_filp_open+0x34/0x7c
[10105.478771]  do_sys_open+0x78/0xe4
[10105.482170]  __arm64_sys_openat+0x1c/0x24
[10105.486180]  el0_svc_handler+0x84/0xc8
[10105.489928]  el0_svc+0x8/0xc
[10105.492808] Code: 52800013 17fffffb d2800003 f9800011 (c85ffc05)
[10105.498903] ---[ end trace 46b721d93267a586 ]---

To reproduce the problem:

1. Filesystem initially mounted read-only, free space fixup flag set.

2. mount -o remount,rw <mountpoint>

3. it takes some time (free space fixup running)
    ... try to terminate running mount by CTRL-C
    ... does not respond, only after free space fixup is complete
    ... then "ubifs_remount_fs: cannot spawn "ubifs_bgt0_0", error -4"

4. mount -o remount,rw <mountpoint>
    ... now finished instantly (fixup already done).

5. Create file or just unmount the filesystem and we get the oops.

Cc: <stable@vger.kernel.org>
Fixes: b50b9f408502 ("UBIFS: do not free write-buffers when in R/O mode")
Signed-off-by: Petr Cvachoucek <cvachoucek@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ubifs/super.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index cfd46753a6856..6a8f9efc2e2f0 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1853,7 +1853,6 @@ out:
 		kthread_stop(c->bgt);
 		c->bgt = NULL;
 	}
-	free_wbufs(c);
 	kfree(c->write_reserve_buf);
 	c->write_reserve_buf = NULL;
 	vfree(c->ileb_buf);
-- 
GitLab


From 05026c4e94c9bc723013ea0f7a93fbae2bb0b257 Mon Sep 17 00:00:00 2001
From: Patrick Williams <patrick@stwcx.xyz>
Date: Thu, 23 Dec 2021 09:49:31 -0600
Subject: [PATCH 3311/4878] tpm: fix NPE on probe for missing device

commit 84cc69589700b90a4c8d27b481a51fce8cca6051 upstream.

When using the tpm_tis-spi driver on a system missing the physical TPM,
a null pointer exception was observed.

    [    0.938677] Unable to handle kernel NULL pointer dereference at virtual address 00000004
    [    0.939020] pgd = 10c753cb
    [    0.939237] [00000004] *pgd=00000000
    [    0.939808] Internal error: Oops: 5 [#1] SMP ARM
    [    0.940157] CPU: 0 PID: 48 Comm: kworker/u4:1 Not tainted 5.15.10-dd1e40c #1
    [    0.940364] Hardware name: Generic DT based system
    [    0.940601] Workqueue: events_unbound async_run_entry_fn
    [    0.941048] PC is at tpm_tis_remove+0x28/0xb4
    [    0.941196] LR is at tpm_tis_core_init+0x170/0x6ac

This is due to an attempt in 'tpm_tis_remove' to use the drvdata, which
was not initialized in 'tpm_tis_core_init' prior to the first error.

Move the initialization of drvdata earlier so 'tpm_tis_remove' has
access to it.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Fixes: 79ca6f74dae0 ("tpm: fix Atmel TPM crash caused by too frequent queries")
Cc: stable@vger.kernel.org
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/tpm/tpm_tis_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 36d1ad8f479d7..dc56b976d8162 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -950,6 +950,8 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	priv->timeout_max = TPM_TIMEOUT_USECS_MAX;
 	priv->phy_ops = phy_ops;
 
+	dev_set_drvdata(&chip->dev, priv);
+
 	rc = tpm_tis_read32(priv, TPM_DID_VID(0), &vendor);
 	if (rc < 0)
 		return rc;
@@ -962,8 +964,6 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 		priv->timeout_max = TIS_TIMEOUT_MAX_ATML;
 	}
 
-	dev_set_drvdata(&chip->dev, priv);
-
 	if (is_bsw()) {
 		priv->ilb_base_addr = ioremap(INTEL_LEGACY_BLK_BASE_ADDR,
 					ILB_REMAP_SIZE);
-- 
GitLab


From 67b078d996f723fe835edc2997a6fc4f31a16d02 Mon Sep 17 00:00:00 2001
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Wed, 22 Dec 2021 13:48:12 +0900
Subject: [PATCH 3312/4878] spi: uniphier: Fix a bug that doesn't point to
 private data correctly

commit 80bb73a9fbcde4ecc55e12f10c73fabbe68a24d1 upstream.

In uniphier_spi_remove(), there is a wrong code to get private data from
the platform device, so the driver can't be removed properly.

The driver should get spi_master from the platform device and retrieve
the private data from it.

Cc: <stable@vger.kernel.org>
Fixes: 5ba155a4d4cc ("spi: add SPI controller driver for UniPhier SoC")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1640148492-32178-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/spi/spi-uniphier.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c
index 6a9ef8ee3cc90..e5c234aecf675 100644
--- a/drivers/spi/spi-uniphier.c
+++ b/drivers/spi/spi-uniphier.c
@@ -767,12 +767,13 @@ out_master_put:
 
 static int uniphier_spi_remove(struct platform_device *pdev)
 {
-	struct uniphier_spi_priv *priv = platform_get_drvdata(pdev);
+	struct spi_master *master = platform_get_drvdata(pdev);
+	struct uniphier_spi_priv *priv = spi_master_get_devdata(master);
 
-	if (priv->master->dma_tx)
-		dma_release_channel(priv->master->dma_tx);
-	if (priv->master->dma_rx)
-		dma_release_channel(priv->master->dma_rx);
+	if (master->dma_tx)
+		dma_release_channel(master->dma_tx);
+	if (master->dma_rx)
+		dma_release_channel(master->dma_rx);
 
 	clk_disable_unprepare(priv->clk);
 
-- 
GitLab


From 9fbaddd783fdc7c074ac9af5aef9baa45596b8b3 Mon Sep 17 00:00:00 2001
From: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Date: Fri, 10 Dec 2021 11:28:17 +0200
Subject: [PATCH 3313/4878] xen/gntdev: fix unmap notification order

commit ce2f46f3531a03781181b7f4bd1ff9f8c5086e7e upstream.

While working with Xen's libxenvchan library I have faced an issue with
unmap notifications sent in wrong order if both UNMAP_NOTIFY_SEND_EVENT
and UNMAP_NOTIFY_CLEAR_BYTE were requested: first we send an event channel
notification and then clear the notification byte which renders in the below
inconsistency (cli_live is the byte which was requested to be cleared on unmap):

[  444.514243] gntdev_put_map UNMAP_NOTIFY_SEND_EVENT map->notify.event 6
libxenvchan_is_open cli_live 1
[  444.515239] __unmap_grant_pages UNMAP_NOTIFY_CLEAR_BYTE at 14

Thus it is not possible to reliably implement the checks like
- wait for the notification (UNMAP_NOTIFY_SEND_EVENT)
- check the variable (UNMAP_NOTIFY_CLEAR_BYTE)
because it is possible that the variable gets checked before it is cleared
by the kernel.

To fix that we need to re-order the notifications, so the variable is first
gets cleared and then the event channel notification is sent.
With this fix I can see the correct order of execution:

[   54.522611] __unmap_grant_pages UNMAP_NOTIFY_CLEAR_BYTE at 14
[   54.537966] gntdev_put_map UNMAP_NOTIFY_SEND_EVENT map->notify.event 6
libxenvchan_is_open cli_live 0

Cc: stable@vger.kernel.org
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20211210092817.580718-1-andr2000@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/gntdev.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index b9651f797676c..54778aadf618d 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -240,13 +240,13 @@ void gntdev_put_map(struct gntdev_priv *priv, struct gntdev_grant_map *map)
 	if (!refcount_dec_and_test(&map->users))
 		return;
 
+	if (map->pages && !use_ptemod)
+		unmap_grant_pages(map, 0, map->count);
+
 	if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT) {
 		notify_remote_via_evtchn(map->notify.event);
 		evtchn_put(map->notify.event);
 	}
-
-	if (map->pages && !use_ptemod)
-		unmap_grant_pages(map, 0, map->count);
 	gntdev_free_map(map);
 }
 
-- 
GitLab


From 9668cf9e4af0a0989c5f8f975213a58e74568a17 Mon Sep 17 00:00:00 2001
From: Xie Yongji <xieyongji@bytedance.com>
Date: Mon, 22 Nov 2021 17:05:31 +0800
Subject: [PATCH 3314/4878] fuse: Pass correct lend value to
 filemap_write_and_wait_range()

commit e388164ea385f04666c4633f5dc4f951fca71890 upstream.

The acceptable maximum value of lend parameter in
filemap_write_and_wait_range() is LLONG_MAX rather than -1. And there is
also some logic depending on LLONG_MAX check in write_cache_pages(). So
let's pass LLONG_MAX to filemap_write_and_wait_range() in
fuse_writeback_range() instead.

Fixes: 59bda8ecee2f ("fuse: flush extending writes")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Cc: <stable@vger.kernel.org> # v5.15
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 4dd70b53df81a..e81d1c3eb7e11 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3251,7 +3251,7 @@ fuse_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 
 static int fuse_writeback_range(struct inode *inode, loff_t start, loff_t end)
 {
-	int err = filemap_write_and_wait_range(inode->i_mapping, start, -1);
+	int err = filemap_write_and_wait_range(inode->i_mapping, start, LLONG_MAX);
 
 	if (!err)
 		fuse_sync_writes(inode);
-- 
GitLab


From 13518f058fdee42d7b624e22add590fa1e5badbf Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Sat, 18 Dec 2021 10:58:56 +0100
Subject: [PATCH 3315/4878] serial: Fix incorrect rs485 polarity on uart open

commit d3b3404df318504ec084213ab1065b73f49b0f1d upstream.

Commit a6845e1e1b78 ("serial: core: Consider rs485 settings to drive
RTS") sought to deassert RTS when opening an rs485-enabled uart port.
That way, the transceiver does not occupy the bus until it transmits
data.

Unfortunately, the commit mixed up the logic and *asserted* RTS instead
of *deasserting* it:

The commit amended uart_port_dtr_rts(), which raises DTR and RTS when
opening an rs232 port.  "Raising" actually means lowering the signal
that's coming out of the uart, because an rs232 transceiver not only
changes a signal's voltage level, it also *inverts* the signal.  See
the simplified schematic in the MAX232 datasheet for an example:
https://www.ti.com/lit/ds/symlink/max232.pdf

So, to raise RTS on an rs232 port, TIOCM_RTS is *set* in port->mctrl
and that results in the signal being driven low.

In contrast to rs232, the signal level for rs485 Transmit Enable is the
identity, not the inversion:  If the transceiver expects a "high" RTS
signal for Transmit Enable, the signal coming out of the uart must also
be high, so TIOCM_RTS must be *cleared* in port->mctrl.

The commit did the exact opposite, but it's easy to see why given the
confusing semantics of rs232 and rs485.  Fix it.

Fixes: a6845e1e1b78 ("serial: core: Consider rs485 settings to drive RTS")
Cc: stable@vger.kernel.org # v4.14+
Cc: Rafael Gago Castano <rgc@hms.se>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Su Bao Cheng <baocheng.su@siemens.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/9395767847833f2f3193c49cde38501eeb3b5669.1639821059.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/serial_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 55108db5b64bf..be0d9922e320e 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -162,7 +162,7 @@ static void uart_port_dtr_rts(struct uart_port *uport, int raise)
 	int RTS_after_send = !!(uport->rs485.flags & SER_RS485_RTS_AFTER_SEND);
 
 	if (raise) {
-		if (rs485_on && !RTS_after_send) {
+		if (rs485_on && RTS_after_send) {
 			uart_set_mctrl(uport, TIOCM_DTR);
 			uart_clear_mctrl(uport, TIOCM_RTS);
 		} else {
@@ -171,7 +171,7 @@ static void uart_port_dtr_rts(struct uart_port *uport, int raise)
 	} else {
 		unsigned int clear = TIOCM_DTR;
 
-		clear |= (!rs485_on || !RTS_after_send) ? TIOCM_RTS : 0;
+		clear |= (!rs485_on || RTS_after_send) ? TIOCM_RTS : 0;
 		uart_clear_mctrl(uport, clear);
 	}
 }
-- 
GitLab


From b72075e395b33761c574c4afbf6bb62fcab3ce6a Mon Sep 17 00:00:00 2001
From: Andrey Ryabinin <arbn@yandex-team.com>
Date: Mon, 15 Nov 2021 19:46:04 +0300
Subject: [PATCH 3316/4878] cputime, cpuacct: Include guest time in user time
 in cpuacct.stat

commit 9731698ecb9c851f353ce2496292ff9fcea39dff upstream.

cpuacct.stat in no-root cgroups shows user time without guest time
included int it. This doesn't match with user time shown in root
cpuacct.stat and /proc/<pid>/stat. This also affects cgroup2's cpu.stat
in the same way.

Make account_guest_time() to add user time to cgroup's cpustat to
fix this.

Fixes: ef12fefabf94 ("cpuacct: add per-cgroup utime/stime statistics")
Signed-off-by: Andrey Ryabinin <arbn@yandex-team.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211115164607.23784-1-arbn@yandex-team.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/sched/cputime.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 5a55d23004524..ca0eef7d3852b 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -147,10 +147,10 @@ void account_guest_time(struct task_struct *p, u64 cputime)
 
 	/* Add guest time to cpustat. */
 	if (task_nice(p) > 0) {
-		cpustat[CPUTIME_NICE] += cputime;
+		task_group_account_field(p, CPUTIME_NICE, cputime);
 		cpustat[CPUTIME_GUEST_NICE] += cputime;
 	} else {
-		cpustat[CPUTIME_USER] += cputime;
+		task_group_account_field(p, CPUTIME_USER, cputime);
 		cpustat[CPUTIME_GUEST] += cputime;
 	}
 }
-- 
GitLab


From c524f4cfb3e59d412dc6b532481bbe4190f9e5a6 Mon Sep 17 00:00:00 2001
From: Xiangyang Zhang <xyz.sun.ok@gmail.com>
Date: Fri, 7 Jan 2022 23:02:42 +0800
Subject: [PATCH 3317/4878] tracing/kprobes: 'nmissed' not showed correctly for
 kretprobe

commit dfea08a2116fe327f79d8f4d4b2cf6e0c88be11f upstream.

The 'nmissed' column of the 'kprobe_profile' file for kretprobe is
not showed correctly, kretprobe can be skipped by two reasons,
shortage of kretprobe_instance which is counted by tk->rp.nmissed,
and kprobe itself is missed by some reason, so to show the sum.

Link: https://lkml.kernel.org/r/20220107150242.5019-1-xyz.sun.ok@gmail.com

Cc: stable@vger.kernel.org
Fixes: 4a846b443b4e ("tracing/kprobes: Cleanup kprobe tracer code")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Xiangyang Zhang <xyz.sun.ok@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_kprobe.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 552dbc9d52260..d8a9fc7941266 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1183,15 +1183,18 @@ static int probes_profile_seq_show(struct seq_file *m, void *v)
 {
 	struct dyn_event *ev = v;
 	struct trace_kprobe *tk;
+	unsigned long nmissed;
 
 	if (!is_trace_kprobe(ev))
 		return 0;
 
 	tk = to_trace_kprobe(ev);
+	nmissed = trace_kprobe_is_return(tk) ?
+		tk->rp.kp.nmissed + tk->rp.nmissed : tk->rp.kp.nmissed;
 	seq_printf(m, "  %-44s %15lu %15lu\n",
 		   trace_probe_name(&tk->tp),
 		   trace_kprobe_nhit(tk),
-		   tk->rp.kp.nmissed);
+		   nmissed);
 
 	return 0;
 }
-- 
GitLab


From 798754ba48b7a8f6dc42883b0122859a281c9644 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Fri, 10 Dec 2021 09:06:21 +0200
Subject: [PATCH 3318/4878] iwlwifi: mvm: Increase the scan timeout guard to 30
 seconds

commit ced50f1133af12f7521bb777fcf4046ca908fb77 upstream.

With the introduction of 6GHz channels the scan guard timeout should
be adjusted to account for the following extreme case:

- All 6GHz channels are scanned passively: 58 channels.
- The scan is fragmented with the following parameters: 3 fragments,
  95 TUs suspend time, 44 TUs maximal out of channel time.

The above would result with scan time of more than 24 seconds. Thus,
set the timeout to 30 seconds.

Cc: stable@vger.kernel.org
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211210090244.3c851b93aef5.I346fa2e1d79220a6770496e773c6f87a2ad9e6c4@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index a5d90e028833c..46255d2c555b6 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -2157,7 +2157,7 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type)
 	return -EIO;
 }
 
-#define SCAN_TIMEOUT 20000
+#define SCAN_TIMEOUT 30000
 
 void iwl_mvm_scan_timeout_wk(struct work_struct *work)
 {
-- 
GitLab


From ecb71f7bd584cd56713b139b6429a8ddaef30f7b Mon Sep 17 00:00:00 2001
From: Alexander Gordeev <agordeev@linux.ibm.com>
Date: Thu, 4 Nov 2021 07:14:44 +0100
Subject: [PATCH 3319/4878] s390/mm: fix 2KB pgtable release race

commit c2c224932fd0ee6854d6ebfc8d059c2bcad86606 upstream.

There is a race on concurrent 2KB-pgtables release paths when
both upper and lower halves of the containing parent page are
freed, one via page_table_free_rcu() + __tlb_remove_table(),
and the other via page_table_free(). The race might lead to a
corruption as result of remove of list item in page_table_free()
concurrently with __free_page() in __tlb_remove_table().

Let's assume first the lower and next the upper 2KB-pgtables are
freed from a page. Since both halves of the page are allocated
the tracking byte (bits 24-31 of the page _refcount) has value
of 0x03 initially:

CPU0				CPU1
----				----

page_table_free_rcu() // lower half
{
	// _refcount[31..24] == 0x03
	...
	atomic_xor_bits(&page->_refcount,
			0x11U << (0 + 24));
	// _refcount[31..24] <= 0x12
	...
	table = table | (1U << 0);
	tlb_remove_table(tlb, table);
}
...
__tlb_remove_table()
{
	// _refcount[31..24] == 0x12
	mask = _table & 3;
	// mask <= 0x01
	...

				page_table_free() // upper half
				{
					// _refcount[31..24] == 0x12
					...
					atomic_xor_bits(
						&page->_refcount,
						1U << (1 + 24));
					// _refcount[31..24] <= 0x10
					// mask <= 0x10
					...
	atomic_xor_bits(&page->_refcount,
			mask << (4 + 24));
	// _refcount[31..24] <= 0x00
	// mask <= 0x00
	...
	if (mask != 0) // == false
		break;
	fallthrough;
	...
					if (mask & 3) // == false
						...
					else
	__free_page(page);			list_del(&page->lru);
	^^^^^^^^^^^^^^^^^^	RACE!		^^^^^^^^^^^^^^^^^^^^^
}					...
				}

The problem is page_table_free() releases the page as result of
lower nibble unset and __tlb_remove_table() observing zero too
early. With this update page_table_free() will use the similar
logic as page_table_free_rcu() + __tlb_remove_table(), and mark
the fragment as pending for removal in the upper nibble until
after the list_del().

In other words, the parent page is considered as unreferenced and
safe to release only when the lower nibble is cleared already and
unsetting a bit in upper nibble results in that nibble turned zero.

Cc: stable@vger.kernel.org
Suggested-by: Vlastimil Babka <vbabka@suse.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/mm/pgalloc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index 11d2c8395e2ae..6d99b1be0082f 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -253,13 +253,15 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
 		/* Free 2K page table fragment of a 4K page */
 		bit = (__pa(table) & ~PAGE_MASK)/(PTRS_PER_PTE*sizeof(pte_t));
 		spin_lock_bh(&mm->context.lock);
-		mask = atomic_xor_bits(&page->_refcount, 1U << (bit + 24));
+		mask = atomic_xor_bits(&page->_refcount, 0x11U << (bit + 24));
 		mask >>= 24;
 		if (mask & 3)
 			list_add(&page->lru, &mm->context.pgtable_list);
 		else
 			list_del(&page->lru);
 		spin_unlock_bh(&mm->context.lock);
+		mask = atomic_xor_bits(&page->_refcount, 0x10U << (bit + 24));
+		mask >>= 24;
 		if (mask != 0)
 			return;
 	} else {
-- 
GitLab


From 6c1e3d8b1bff4c861c9ebe2d37a5b296fc7ee207 Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Wed, 1 Dec 2021 14:59:29 +0200
Subject: [PATCH 3320/4878] device property: Fix fwnode_graph_devcon_match()
 fwnode leak

commit 4a7f4110f79163fd53ea65438041994ed615e3af upstream.

For each endpoint it encounters, fwnode_graph_devcon_match() checks
whether the endpoint's remote port parent device is available. If it is
not, it ignores the endpoint but does not put the reference to the remote
endpoint port parent fwnode. For available devices the fwnode handle
reference is put as expected.

Put the reference for unavailable devices now.

Fixes: 637e9e52b185 ("device connection: Find device connections also from device graphs")
Cc: 5.1+ <stable@vger.kernel.org> # 5.1+
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/property.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/base/property.c b/drivers/base/property.c
index 4c43d30145c6b..cf88a5554d9c5 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1195,8 +1195,10 @@ fwnode_graph_devcon_match(struct fwnode_handle *fwnode, const char *con_id,
 
 	fwnode_graph_for_each_endpoint(fwnode, ep) {
 		node = fwnode_graph_get_remote_port_parent(ep);
-		if (!fwnode_device_is_available(node))
+		if (!fwnode_device_is_available(node)) {
+			fwnode_handle_put(node);
 			continue;
+		}
 
 		ret = match(node, con_id, data);
 		fwnode_handle_put(node);
-- 
GitLab


From 605583fcccb51c73362f5c2b326693da692e4492 Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 17 Dec 2021 11:59:28 +0100
Subject: [PATCH 3321/4878] drm/etnaviv: limit submit sizes

commit 6dfa2fab8ddd46faa771a102672176bee7a065de upstream.

Currently we allow rediculous amounts of kernel memory being allocated
via the etnaviv GEM_SUBMIT ioctl, which is a pretty easy DoS vector. Put
some reasonable limits in to fix this.

The commandstream size is limited to 64KB, which was already a soft limit
on older kernels after which the kernel only took submits on a best effort
base, so there is no userspace that tries to submit commandstreams larger
than this. Even if the whole commandstream is a single incrementing address
load, the size limit also limits the number of potential relocs and
referenced buffers to slightly under 64K, so use the same limit for those
arguments. The performance monitoring infrastructure currently supports
less than 50 performance counter signals, so limiting them to 128 on a
single submit seems like a reasonably future-proof number for now. This
number can be bumped if needed without breaking the interface.

Cc: stable@vger.kernel.org
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 5f24cc52c2878..ed2c50011d445 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -469,6 +469,12 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
+	if (args->stream_size > SZ_64K || args->nr_relocs > SZ_64K ||
+	    args->nr_bos > SZ_64K || args->nr_pmrs > 128) {
+		DRM_ERROR("submit arguments out of size limits\n");
+		return -EINVAL;
+	}
+
 	/*
 	 * Copy the command submission and bo array to kernel space in
 	 * one go, and do this outside of any locks.
-- 
GitLab


From 8cbbf4a6f1acdf0f392694ebc719b584a40400f6 Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Sun, 7 Mar 2021 12:48:53 -0500
Subject: [PATCH 3322/4878] drm/nouveau/kms/nv04: use vzalloc for nv04_display

commit bd6e07e72f37f34535bec7eebc807e5fcfe37b43 upstream.

The struct is giant, and triggers an order-7 allocation (512K). There is
no reason for this to be kmalloc-type memory, so switch to vmalloc. This
should help loading nouveau on low-memory and/or long-running systems.

Reported-by: Nathan E. Egge <unlord@xiph.org>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/10
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/dispnv04/disp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c
index 7739f46470d3e..99fee4d8cd318 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c
@@ -205,7 +205,7 @@ nv04_display_destroy(struct drm_device *dev)
 	nvif_notify_dtor(&disp->flip);
 
 	nouveau_display(dev)->priv = NULL;
-	kfree(disp);
+	vfree(disp);
 
 	nvif_object_unmap(&drm->client.device.object);
 }
@@ -223,7 +223,7 @@ nv04_display_create(struct drm_device *dev)
 	struct nv04_display *disp;
 	int i, ret;
 
-	disp = kzalloc(sizeof(*disp), GFP_KERNEL);
+	disp = vzalloc(sizeof(*disp));
 	if (!disp)
 		return -ENOMEM;
 
-- 
GitLab


From 9b78ee2341d4496688a157ae3fc901cc6c3c4385 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Wed, 3 Nov 2021 13:52:00 -0700
Subject: [PATCH 3323/4878] drm/bridge: analogix_dp: Make PSR-exit block less

commit c4c6ef229593366ab593d4d424addc7025b54a76 upstream.

Prior to commit 6c836d965bad ("drm/rockchip: Use the helpers for PSR"),
"PSR exit" used non-blocking analogix_dp_send_psr_spd(). The refactor
started using the blocking variant, for a variety of reasons -- quoting
Sean Paul's potentially-faulty memory:

"""
 - To avoid racing a subsequent PSR entry (if exit takes a long time)
 - To avoid racing disable/modeset
 - We're not displaying new content while exiting PSR anyways, so there
   is minimal utility in allowing frames to be submitted
 - We're lying to userspace telling them frames are on the screen when
   we're just dropping them on the floor
"""

However, I'm finding that this blocking transition is causing upwards of
60+ ms of unneeded latency on PSR-exit, to the point that initial cursor
movements when leaving PSR are unbearably jumpy.

It turns out that we need to meet in the middle somewhere: Sean is right
that we were "lying to userspace" with a non-blocking PSR-exit, but the
new blocking behavior is also waiting too long:

According to the eDP specification, the sink device must support PSR
entry transitions from both state 4 (ACTIVE_RESYNC) and state 0
(INACTIVE). It also states that in ACTIVE_RESYNC, "the Sink device must
display the incoming active frames from the Source device with no
visible glitches and/or artifacts."

Thus, for our purposes, we only need to wait for ACTIVE_RESYNC before
moving on; we are ready to display video, and subsequent PSR-entry is
safe.

Tested on a Samsung Chromebook Plus (i.e., Rockchip RK3399 Gru Kevin),
where this saves about 60ms of latency, for PSR-exit that used to
take about 80ms.

Fixes: 6c836d965bad ("drm/rockchip: Use the helpers for PSR")
Cc: <stable@vger.kernel.org>
Cc: Zain Wang <wzz@rock-chips.com>
Cc: Tomasz Figa <tfiga@chromium.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211103135112.v3.1.I67612ea073c3306c71b46a87be894f79707082df@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
index 914c569ab8c15..cab3f5c4e2fc8 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
@@ -1086,11 +1086,21 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
 	if (!blocking)
 		return 0;
 
+	/*
+	 * db[1]!=0: entering PSR, wait for fully active remote frame buffer.
+	 * db[1]==0: exiting PSR, wait for either
+	 *  (a) ACTIVE_RESYNC - the sink "must display the
+	 *      incoming active frames from the Source device with no visible
+	 *      glitches and/or artifacts", even though timings may still be
+	 *      re-synchronizing; or
+	 *  (b) INACTIVE - the transition is fully complete.
+	 */
 	ret = readx_poll_timeout(analogix_dp_get_psr_status, dp, psr_status,
 		psr_status >= 0 &&
 		((vsc->db[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
-		(!vsc->db[1] && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
-		DP_TIMEOUT_PSR_LOOP_MS * 1000);
+		(!vsc->db[1] && (psr_status == DP_PSR_SINK_ACTIVE_RESYNC ||
+				 psr_status == DP_PSR_SINK_INACTIVE))),
+		1500, DP_TIMEOUT_PSR_LOOP_MS * 1000);
 	if (ret) {
 		dev_warn(dp->dev, "Failed to apply PSR %d\n", ret);
 		return ret;
-- 
GitLab


From eb44b1386af5751e0faec3a06e65078f146f81a7 Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Wed, 22 Dec 2021 16:01:31 +0000
Subject: [PATCH 3324/4878] parisc: Fix lpa and lpa_user defines

commit db19c6f1a2a353cc8dec35b4789733a3cf6e2838 upstream.

While working on the rewrite to the light-weight syscall and futex code, I
experimented with using a hash index based on the user physical address of
atomic variable. This exposed two problems with the lpa and lpa_user defines.

Because of the copy instruction, the pa argument needs to be an early clobber
argument. This prevents gcc from allocating the va and pa arguments to the same
register.

Secondly, the lpa instruction can cause a page fault so we need to catch
exceptions.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Fixes: 116d753308cf ("parisc: Use lpa instruction to load physical addresses in driver code")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/include/asm/special_insns.h | 44 ++++++++++++++-----------
 1 file changed, 24 insertions(+), 20 deletions(-)

diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
index a303ae9a77f41..16ee41e77174f 100644
--- a/arch/parisc/include/asm/special_insns.h
+++ b/arch/parisc/include/asm/special_insns.h
@@ -2,28 +2,32 @@
 #ifndef __PARISC_SPECIAL_INSNS_H
 #define __PARISC_SPECIAL_INSNS_H
 
-#define lpa(va)	({			\
-	unsigned long pa;		\
-	__asm__ __volatile__(		\
-		"copy %%r0,%0\n\t"	\
-		"lpa %%r0(%1),%0"	\
-		: "=r" (pa)		\
-		: "r" (va)		\
-		: "memory"		\
-	);				\
-	pa;				\
+#define lpa(va)	({					\
+	unsigned long pa;				\
+	__asm__ __volatile__(				\
+		"copy %%r0,%0\n"			\
+		"8:\tlpa %%r0(%1),%0\n"			\
+		"9:\n"					\
+		ASM_EXCEPTIONTABLE_ENTRY(8b, 9b)	\
+		: "=&r" (pa)				\
+		: "r" (va)				\
+		: "memory"				\
+	);						\
+	pa;						\
 })
 
-#define lpa_user(va)	({		\
-	unsigned long pa;		\
-	__asm__ __volatile__(		\
-		"copy %%r0,%0\n\t"	\
-		"lpa %%r0(%%sr3,%1),%0"	\
-		: "=r" (pa)		\
-		: "r" (va)		\
-		: "memory"		\
-	);				\
-	pa;				\
+#define lpa_user(va)	({				\
+	unsigned long pa;				\
+	__asm__ __volatile__(				\
+		"copy %%r0,%0\n"			\
+		"8:\tlpa %%r0(%%sr3,%1),%0\n"		\
+		"9:\n"					\
+		ASM_EXCEPTIONTABLE_ENTRY(8b, 9b)	\
+		: "=&r" (pa)				\
+		: "r" (va)				\
+		: "memory"				\
+	);						\
+	pa;						\
 })
 
 #define mfctl(reg)	({		\
-- 
GitLab


From e09f47e77b6e3148c02d88ef91e9ab16a005cc95 Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Thu, 16 Dec 2021 20:33:42 +1000
Subject: [PATCH 3325/4878] powerpc/64s/radix: Fix huge vmap false positive

commit 467ba14e1660b52a2f9338b484704c461bd23019 upstream.

pmd_huge() is defined to false when HUGETLB_PAGE is not configured, but
the vmap code still installs huge PMDs. This leads to false bad PMD
errors when vunmapping because it is not seen as a huge PTE, and the bad
PMD check catches it. The end result may not be much more serious than
some bad pmd warning messages, because the pmd_none_or_clear_bad() does
what we wanted and clears the huge PTE anyway.

Fix this by checking pmd_is_leaf(), which checks for a PTE regardless of
config options. The whole huge/large/leaf stuff is a tangled mess but
that's kernel-wide and not something we can improve much in arch/powerpc
code.

pmd_page(), pud_page(), etc., called by vmalloc_to_page() on huge vmaps
can similarly trigger a false VM_BUG_ON when CONFIG_HUGETLB_PAGE=n, so
those checks are adjusted. The checks were added by commit d6eacedd1f0e
("powerpc/book3s: Use config independent helpers for page table walk"),
while implementing a similar fix for other page table walking functions.

Fixes: d909f9109c30 ("powerpc/64s/radix: Enable HAVE_ARCH_HUGE_VMAP")
Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211216103342.609192-1-npiggin@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/mm/book3s64/radix_pgtable.c |  4 ++--
 arch/powerpc/mm/pgtable_64.c             | 14 +++++++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 1d5eec847b883..295959487b76d 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -1152,7 +1152,7 @@ int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot)
 
 int pud_clear_huge(pud_t *pud)
 {
-	if (pud_huge(*pud)) {
+	if (pud_is_leaf(*pud)) {
 		pud_clear(pud);
 		return 1;
 	}
@@ -1199,7 +1199,7 @@ int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)
 
 int pmd_clear_huge(pmd_t *pmd)
 {
-	if (pmd_huge(*pmd)) {
+	if (pmd_is_leaf(*pmd)) {
 		pmd_clear(pmd);
 		return 1;
 	}
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index cc6e2f94517fc..aefc2bfdf1049 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -102,7 +102,8 @@ EXPORT_SYMBOL(__pte_frag_size_shift);
 struct page *p4d_page(p4d_t p4d)
 {
 	if (p4d_is_leaf(p4d)) {
-		VM_WARN_ON(!p4d_huge(p4d));
+		if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
+			VM_WARN_ON(!p4d_huge(p4d));
 		return pte_page(p4d_pte(p4d));
 	}
 	return virt_to_page(p4d_page_vaddr(p4d));
@@ -112,7 +113,8 @@ struct page *p4d_page(p4d_t p4d)
 struct page *pud_page(pud_t pud)
 {
 	if (pud_is_leaf(pud)) {
-		VM_WARN_ON(!pud_huge(pud));
+		if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
+			VM_WARN_ON(!pud_huge(pud));
 		return pte_page(pud_pte(pud));
 	}
 	return virt_to_page(pud_page_vaddr(pud));
@@ -125,7 +127,13 @@ struct page *pud_page(pud_t pud)
 struct page *pmd_page(pmd_t pmd)
 {
 	if (pmd_is_leaf(pmd)) {
-		VM_WARN_ON(!(pmd_large(pmd) || pmd_huge(pmd)));
+		/*
+		 * vmalloc_to_page may be called on any vmap address (not only
+		 * vmalloc), and it uses pmd_page() etc., when huge vmap is
+		 * enabled so these checks can't be used.
+		 */
+		if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
+			VM_WARN_ON(!(pmd_large(pmd) || pmd_huge(pmd)));
 		return pte_page(pmd_pte(pmd));
 	}
 	return virt_to_page(pmd_page_vaddr(pmd));
-- 
GitLab


From 6cbe8f8deb6286a33937b9b95204c6f77b232796 Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Mon, 29 Nov 2021 11:36:37 -0600
Subject: [PATCH 3326/4878] PCI: xgene: Fix IB window setup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit c7a75d07827a1f33d566e18e6098379cc2a0c2b2 upstream.

Commit 6dce5aa59e0b ("PCI: xgene: Use inbound resources for setup")
broke PCI support on XGene. The cause is the IB resources are now sorted
in address order instead of being in DT dma-ranges order. The result is
which inbound registers are used for each region are swapped. I don't
know the details about this h/w, but it appears that IB region 0
registers can't handle a size greater than 4GB. In any case, limiting
the size for region 0 is enough to get back to the original assignment
of dma-ranges to regions.

Link: https://lore.kernel.org/all/CA+enf=v9rY_xnZML01oEgKLmvY1NGBUUhnSJaETmXtDtXfaczA@mail.gmail.com/
Link: https://lore.kernel.org/r/20211129173637.303201-1-robh@kernel.org
Fixes: 6dce5aa59e0b ("PCI: xgene: Use inbound resources for setup")
Reported-by: Stéphane Graber <stgraber@ubuntu.com>
Tested-by: Stéphane Graber <stgraber@ubuntu.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Cc: stable@vger.kernel.org # v5.5+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-xgene.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
index c33b385ac918e..b651b6f444691 100644
--- a/drivers/pci/controller/pci-xgene.c
+++ b/drivers/pci/controller/pci-xgene.c
@@ -467,7 +467,7 @@ static int xgene_pcie_select_ib_reg(u8 *ib_reg_mask, u64 size)
 		return 1;
 	}
 
-	if ((size > SZ_1K) && (size < SZ_1T) && !(*ib_reg_mask & (1 << 0))) {
+	if ((size > SZ_1K) && (size < SZ_4G) && !(*ib_reg_mask & (1 << 0))) {
 		*ib_reg_mask |= (1 << 0);
 		return 0;
 	}
-- 
GitLab


From def2825b09ece8c8b6e2514c8f785073bf3a864e Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 17 Dec 2021 15:17:09 +0100
Subject: [PATCH 3327/4878] PCI: pciehp: Use down_read/write_nested(reset_lock)
 to fix lockdep errors

commit 085a9f43433f30cbe8a1ade62d9d7827c3217f4d upstream.

Use down_read_nested() and down_write_nested() when taking the
ctrl->reset_lock rw-sem, passing the number of PCIe hotplug controllers in
the path to the PCI root bus as lock subclass parameter.

This fixes the following false-positive lockdep report when unplugging a
Lenovo X1C8 from a Lenovo 2nd gen TB3 dock:

  pcieport 0000:06:01.0: pciehp: Slot(1): Link Down
  pcieport 0000:06:01.0: pciehp: Slot(1): Card not present
  ============================================
  WARNING: possible recursive locking detected
  5.16.0-rc2+ #621 Not tainted
  --------------------------------------------
  irq/124-pciehp/86 is trying to acquire lock:
  ffff8e5ac4299ef8 (&ctrl->reset_lock){.+.+}-{3:3}, at: pciehp_check_presence+0x23/0x80

  but task is already holding lock:
  ffff8e5ac4298af8 (&ctrl->reset_lock){.+.+}-{3:3}, at: pciehp_ist+0xf3/0x180

   other info that might help us debug this:
   Possible unsafe locking scenario:

	 CPU0
	 ----
    lock(&ctrl->reset_lock);
    lock(&ctrl->reset_lock);

   *** DEADLOCK ***

   May be due to missing lock nesting notation

  3 locks held by irq/124-pciehp/86:
   #0: ffff8e5ac4298af8 (&ctrl->reset_lock){.+.+}-{3:3}, at: pciehp_ist+0xf3/0x180
   #1: ffffffffa3b024e8 (pci_rescan_remove_lock){+.+.}-{3:3}, at: pciehp_unconfigure_device+0x31/0x110
   #2: ffff8e5ac1ee2248 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40

  stack backtrace:
  CPU: 4 PID: 86 Comm: irq/124-pciehp Not tainted 5.16.0-rc2+ #621
  Hardware name: LENOVO 20U90SIT19/20U90SIT19, BIOS N2WET30W (1.20 ) 08/26/2021
  Call Trace:
   <TASK>
   dump_stack_lvl+0x59/0x73
   __lock_acquire.cold+0xc5/0x2c6
   lock_acquire+0xb5/0x2b0
   down_read+0x3e/0x50
   pciehp_check_presence+0x23/0x80
   pciehp_runtime_resume+0x5c/0xa0
   device_for_each_child+0x45/0x70
   pcie_port_device_runtime_resume+0x20/0x30
   pci_pm_runtime_resume+0xa7/0xc0
   __rpm_callback+0x41/0x110
   rpm_callback+0x59/0x70
   rpm_resume+0x512/0x7b0
   __pm_runtime_resume+0x4a/0x90
   __device_release_driver+0x28/0x240
   device_release_driver+0x26/0x40
   pci_stop_bus_device+0x68/0x90
   pci_stop_bus_device+0x2c/0x90
   pci_stop_and_remove_bus_device+0xe/0x20
   pciehp_unconfigure_device+0x6c/0x110
   pciehp_disable_slot+0x5b/0xe0
   pciehp_handle_presence_or_link_change+0xc3/0x2f0
   pciehp_ist+0x179/0x180

This lockdep warning is triggered because with Thunderbolt, hotplug ports
are nested. When removing multiple devices in a daisy-chain, each hotplug
port's reset_lock may be acquired recursively. It's never the same lock, so
the lockdep splat is a false positive.

Because locks at the same hierarchy level are never acquired recursively, a
per-level lockdep class is sufficient to fix the lockdep warning.

The choice to use one lockdep subclass per pcie-hotplug controller in the
path to the root-bus was made to conserve class keys because their number
is limited and the complexity grows quadratically with number of keys
according to Documentation/locking/lockdep-design.rst.

Link: https://lore.kernel.org/linux-pci/20190402021933.GA2966@mit.edu/
Link: https://lore.kernel.org/linux-pci/de684a28-9038-8fc6-27ca-3f6f2f6400d7@redhat.com/
Link: https://lore.kernel.org/r/20211217141709.379663-1-hdegoede@redhat.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208855
Reported-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/hotplug/pciehp.h      |  3 +++
 drivers/pci/hotplug/pciehp_core.c |  2 +-
 drivers/pci/hotplug/pciehp_hpc.c  | 21 ++++++++++++++++++---
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 4fd200d8b0a9d..f1f789fe0637a 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -72,6 +72,8 @@ extern int pciehp_poll_time;
  * @reset_lock: prevents access to the Data Link Layer Link Active bit in the
  *	Link Status register and to the Presence Detect State bit in the Slot
  *	Status register during a slot reset which may cause them to flap
+ * @depth: Number of additional hotplug ports in the path to the root bus,
+ *	used as lock subclass for @reset_lock
  * @ist_running: flag to keep user request waiting while IRQ thread is running
  * @request_result: result of last user request submitted to the IRQ thread
  * @requester: wait queue to wake up on completion of user request,
@@ -103,6 +105,7 @@ struct controller {
 
 	struct hotplug_slot hotplug_slot;	/* hotplug core interface */
 	struct rw_semaphore reset_lock;
+	unsigned int depth;
 	unsigned int ist_running;
 	int request_result;
 	wait_queue_head_t requester;
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index ad3393930ecb4..e7fe4b42f0394 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -166,7 +166,7 @@ static void pciehp_check_presence(struct controller *ctrl)
 {
 	int occupied;
 
-	down_read(&ctrl->reset_lock);
+	down_read_nested(&ctrl->reset_lock, ctrl->depth);
 	mutex_lock(&ctrl->state_lock);
 
 	occupied = pciehp_card_present_or_link_active(ctrl);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 9d06939736c0f..90da17c6da664 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -583,7 +583,7 @@ static void pciehp_ignore_dpc_link_change(struct controller *ctrl,
 	 * the corresponding link change may have been ignored above.
 	 * Synthesize it to ensure that it is acted on.
 	 */
-	down_read(&ctrl->reset_lock);
+	down_read_nested(&ctrl->reset_lock, ctrl->depth);
 	if (!pciehp_check_link_active(ctrl))
 		pciehp_request(ctrl, PCI_EXP_SLTSTA_DLLSC);
 	up_read(&ctrl->reset_lock);
@@ -746,7 +746,7 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id)
 	 * Disable requests have higher priority than Presence Detect Changed
 	 * or Data Link Layer State Changed events.
 	 */
-	down_read(&ctrl->reset_lock);
+	down_read_nested(&ctrl->reset_lock, ctrl->depth);
 	if (events & DISABLE_SLOT)
 		pciehp_handle_disable_request(ctrl);
 	else if (events & (PCI_EXP_SLTSTA_PDC | PCI_EXP_SLTSTA_DLLSC))
@@ -880,7 +880,7 @@ int pciehp_reset_slot(struct hotplug_slot *hotplug_slot, int probe)
 	if (probe)
 		return 0;
 
-	down_write(&ctrl->reset_lock);
+	down_write_nested(&ctrl->reset_lock, ctrl->depth);
 
 	if (!ATTN_BUTTN(ctrl)) {
 		ctrl_mask |= PCI_EXP_SLTCTL_PDCE;
@@ -936,6 +936,20 @@ static inline void dbg_ctrl(struct controller *ctrl)
 
 #define FLAG(x, y)	(((x) & (y)) ? '+' : '-')
 
+static inline int pcie_hotplug_depth(struct pci_dev *dev)
+{
+	struct pci_bus *bus = dev->bus;
+	int depth = 0;
+
+	while (bus->parent) {
+		bus = bus->parent;
+		if (bus->self && bus->self->is_hotplug_bridge)
+			depth++;
+	}
+
+	return depth;
+}
+
 struct controller *pcie_init(struct pcie_device *dev)
 {
 	struct controller *ctrl;
@@ -949,6 +963,7 @@ struct controller *pcie_init(struct pcie_device *dev)
 		return NULL;
 
 	ctrl->pcie = dev;
+	ctrl->depth = pcie_hotplug_depth(dev->port);
 	pcie_capability_read_dword(pdev, PCI_EXP_SLTCAP, &slot_cap);
 
 	if (pdev->hotplug_user_indicators)
-- 
GitLab


From 2a0d437d8a76474452cb91d2fc729020c2371ad3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 24 Nov 2021 16:59:39 +0100
Subject: [PATCH 3328/4878] PCI: pci-bridge-emul: Make expansion ROM Base
 Address register read-only
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 1c1a3b4d3e86b997a313ffb297c1129540882859 upstream.

If expansion ROM is unsupported (which is the case of pci-bridge-emul.c
driver) then ROM Base Address register must be implemented as read-only
register that return 0 when read, same as for unused Base Address
registers.

Link: https://lore.kernel.org/r/20211124155944.1290-2-pali@kernel.org
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-bridge-emul.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index db97cddfc85e1..5de8b8dde2093 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -139,8 +139,13 @@ struct pci_bridge_reg_behavior pci_regs_behavior[PCI_STD_HEADER_SIZEOF / 4] = {
 		.ro = GENMASK(7, 0),
 	},
 
+	/*
+	 * If expansion ROM is unsupported then ROM Base Address register must
+	 * be implemented as read-only register that return 0 when read, same
+	 * as for unused Base Address registers.
+	 */
 	[PCI_ROM_ADDRESS1 / 4] = {
-		.rw = GENMASK(31, 11) | BIT(0),
+		.ro = ~0,
 	},
 
 	/*
-- 
GitLab


From 0f2ae6691e73c25798a38aa6204b2763d5bb982f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 24 Nov 2021 16:59:40 +0100
Subject: [PATCH 3329/4878] PCI: pci-bridge-emul: Properly mark reserved PCIe
 bits in PCI config space
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 7b067ac63a5730d2fae18399fed7e45f23d36912 upstream.

Some bits in PCI config space are reserved when device is PCIe. Properly
define behavior of PCI registers for PCIe emulated bridge and ensure that
it would not be possible change these reserved bits.

Link: https://lore.kernel.org/r/20211124155944.1290-3-pali@kernel.org
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-bridge-emul.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index 5de8b8dde2093..0cbb4e3ca827c 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -295,6 +295,27 @@ int pci_bridge_emul_init(struct pci_bridge_emul *bridge,
 			kfree(bridge->pci_regs_behavior);
 			return -ENOMEM;
 		}
+		/* These bits are applicable only for PCI and reserved on PCIe */
+		bridge->pci_regs_behavior[PCI_CACHE_LINE_SIZE / 4].ro &=
+			~GENMASK(15, 8);
+		bridge->pci_regs_behavior[PCI_COMMAND / 4].ro &=
+			~((PCI_COMMAND_SPECIAL | PCI_COMMAND_INVALIDATE |
+			   PCI_COMMAND_VGA_PALETTE | PCI_COMMAND_WAIT |
+			   PCI_COMMAND_FAST_BACK) |
+			  (PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK |
+			   PCI_STATUS_DEVSEL_MASK) << 16);
+		bridge->pci_regs_behavior[PCI_PRIMARY_BUS / 4].ro &=
+			~GENMASK(31, 24);
+		bridge->pci_regs_behavior[PCI_IO_BASE / 4].ro &=
+			~((PCI_STATUS_66MHZ | PCI_STATUS_FAST_BACK |
+			   PCI_STATUS_DEVSEL_MASK) << 16);
+		bridge->pci_regs_behavior[PCI_INTERRUPT_LINE / 4].rw &=
+			~((PCI_BRIDGE_CTL_MASTER_ABORT |
+			   BIT(8) | BIT(9) | BIT(11)) << 16);
+		bridge->pci_regs_behavior[PCI_INTERRUPT_LINE / 4].ro &=
+			~((PCI_BRIDGE_CTL_FAST_BACK) << 16);
+		bridge->pci_regs_behavior[PCI_INTERRUPT_LINE / 4].w1c &=
+			~(BIT(10) << 16);
 	}
 
 	if (flags & PCI_BRIDGE_EMUL_NO_PREFETCHABLE_BAR) {
-- 
GitLab


From af1d0acdaca70c62861964288dcf1dc1b9108b5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 24 Nov 2021 16:59:42 +0100
Subject: [PATCH 3330/4878] PCI: pci-bridge-emul: Fix definitions of reserved
 bits
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 12998087d9f48b66965b97412069c7826502cd7e upstream.

Some bits in PCI_EXP registers are reserved for non-root ports. Driver
pci-bridge-emul.c implements PCIe Root Port device therefore it should not
allow setting reserved bits of registers.

Properly define non-reserved bits for all PCI_EXP registers.

Link: https://lore.kernel.org/r/20211124155944.1290-5-pali@kernel.org
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-bridge-emul.c | 36 ++++++++++++++++++++++++-----------
 1 file changed, 25 insertions(+), 11 deletions(-)

diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index 0cbb4e3ca827c..2c7e04fb2685e 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -176,41 +176,55 @@ struct pci_bridge_reg_behavior pcie_cap_regs_behavior[PCI_CAP_PCIE_SIZEOF / 4] =
 	[PCI_CAP_LIST_ID / 4] = {
 		/*
 		 * Capability ID, Next Capability Pointer and
-		 * Capabilities register are all read-only.
+		 * bits [14:0] of Capabilities register are all read-only.
+		 * Bit 15 of Capabilities register is reserved.
 		 */
-		.ro = ~0,
+		.ro = GENMASK(30, 0),
 	},
 
 	[PCI_EXP_DEVCAP / 4] = {
-		.ro = ~0,
+		/*
+		 * Bits [31:29] and [17:16] are reserved.
+		 * Bits [27:18] are reserved for non-upstream ports.
+		 * Bits 28 and [14:6] are reserved for non-endpoint devices.
+		 * Other bits are read-only.
+		 */
+		.ro = BIT(15) | GENMASK(5, 0),
 	},
 
 	[PCI_EXP_DEVCTL / 4] = {
-		/* Device control register is RW */
-		.rw = GENMASK(15, 0),
+		/*
+		 * Device control register is RW, except bit 15 which is
+		 * reserved for non-endpoints or non-PCIe-to-PCI/X bridges.
+		 */
+		.rw = GENMASK(14, 0),
 
 		/*
 		 * Device status register has bits 6 and [3:0] W1C, [5:4] RO,
-		 * the rest is reserved
+		 * the rest is reserved. Also bit 6 is reserved for non-upstream
+		 * ports.
 		 */
-		.w1c = (BIT(6) | GENMASK(3, 0)) << 16,
+		.w1c = GENMASK(3, 0) << 16,
 		.ro = GENMASK(5, 4) << 16,
 	},
 
 	[PCI_EXP_LNKCAP / 4] = {
-		/* All bits are RO, except bit 23 which is reserved */
-		.ro = lower_32_bits(~BIT(23)),
+		/*
+		 * All bits are RO, except bit 23 which is reserved and
+		 * bit 18 which is reserved for non-upstream ports.
+		 */
+		.ro = lower_32_bits(~(BIT(23) | PCI_EXP_LNKCAP_CLKPM)),
 	},
 
 	[PCI_EXP_LNKCTL / 4] = {
 		/*
 		 * Link control has bits [15:14], [11:3] and [1:0] RW, the
-		 * rest is reserved.
+		 * rest is reserved. Bit 8 is reserved for non-upstream ports.
 		 *
 		 * Link status has bits [13:0] RO, and bits [15:14]
 		 * W1C.
 		 */
-		.rw = GENMASK(15, 14) | GENMASK(11, 3) | GENMASK(1, 0),
+		.rw = GENMASK(15, 14) | GENMASK(11, 9) | GENMASK(7, 3) | GENMASK(1, 0),
 		.ro = GENMASK(13, 0) << 16,
 		.w1c = GENMASK(15, 14) << 16,
 	},
-- 
GitLab


From 7aeeb9fe9ca0b9e084c3ac4c1361b188c31fa9f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 24 Nov 2021 16:59:43 +0100
Subject: [PATCH 3331/4878] PCI: pci-bridge-emul: Correctly set PCIe
 capabilities
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 1f1050c5e1fefb34ac90a506b43e9da803b5f8f7 upstream.

Older mvebu hardware provides PCIe Capability structure only in version 1.
New mvebu and aardvark hardware provides it in version 2. So do not force
version to 2 in pci_bridge_emul_init() and rather allow drivers to set
correct version. Drivers need to set version in pcie_conf.cap field without
overwriting PCI_CAP_LIST_ID register. Both drivers (mvebu and aardvark) do
not provide slot support yet, so do not set PCI_EXP_FLAGS_SLOT flag.

Link: https://lore.kernel.org/r/20211124155944.1290-6-pali@kernel.org
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-aardvark.c | 4 +++-
 drivers/pci/controller/pci-mvebu.c    | 8 ++++++++
 drivers/pci/pci-bridge-emul.c         | 5 +----
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 0f6a6685ab5b5..f30144c8c0bd2 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -879,7 +879,6 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge,
 		return PCI_BRIDGE_EMUL_HANDLED;
 	}
 
-	case PCI_CAP_LIST_ID:
 	case PCI_EXP_DEVCAP:
 	case PCI_EXP_DEVCTL:
 		*value = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg);
@@ -960,6 +959,9 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 	/* Support interrupt A for MSI feature */
 	bridge->conf.intpin = PCIE_CORE_INT_A_ASSERT_ENABLE;
 
+	/* Aardvark HW provides PCIe Capability structure in version 2 */
+	bridge->pcie_conf.cap = cpu_to_le16(2);
+
 	/* Indicates supports for Completion Retry Status */
 	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
 
diff --git a/drivers/pci/controller/pci-mvebu.c b/drivers/pci/controller/pci-mvebu.c
index ed13e81cd691d..2dc6890dbcaa2 100644
--- a/drivers/pci/controller/pci-mvebu.c
+++ b/drivers/pci/controller/pci-mvebu.c
@@ -573,6 +573,8 @@ static struct pci_bridge_emul_ops mvebu_pci_bridge_emul_ops = {
 static void mvebu_pci_bridge_emul_init(struct mvebu_pcie_port *port)
 {
 	struct pci_bridge_emul *bridge = &port->bridge;
+	u32 pcie_cap = mvebu_readl(port, PCIE_CAP_PCIEXP);
+	u8 pcie_cap_ver = ((pcie_cap >> 16) & PCI_EXP_FLAGS_VERS);
 
 	bridge->conf.vendor = PCI_VENDOR_ID_MARVELL;
 	bridge->conf.device = mvebu_readl(port, PCIE_DEV_ID_OFF) >> 16;
@@ -585,6 +587,12 @@ static void mvebu_pci_bridge_emul_init(struct mvebu_pcie_port *port)
 		bridge->conf.iolimit = PCI_IO_RANGE_TYPE_32;
 	}
 
+	/*
+	 * Older mvebu hardware provides PCIe Capability structure only in
+	 * version 1. New hardware provides it in version 2.
+	 */
+	bridge->pcie_conf.cap = cpu_to_le16(pcie_cap_ver);
+
 	bridge->has_pcie = true;
 	bridge->data = port;
 	bridge->ops = &mvebu_pci_bridge_emul_ops;
diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index 2c7e04fb2685e..867159562d078 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -297,10 +297,7 @@ int pci_bridge_emul_init(struct pci_bridge_emul *bridge,
 	if (bridge->has_pcie) {
 		bridge->conf.capabilities_pointer = PCI_CAP_PCIE_START;
 		bridge->pcie_conf.cap_id = PCI_CAP_ID_EXP;
-		/* Set PCIe v2, root port, slot support */
-		bridge->pcie_conf.cap =
-			cpu_to_le16(PCI_EXP_TYPE_ROOT_PORT << 4 | 2 |
-				    PCI_EXP_FLAGS_SLOT);
+		bridge->pcie_conf.cap |= cpu_to_le16(PCI_EXP_TYPE_ROOT_PORT << 4);
 		bridge->pcie_cap_regs_behavior =
 			kmemdup(pcie_cap_regs_behavior,
 				sizeof(pcie_cap_regs_behavior),
-- 
GitLab


From 84166c1177f39b852f92dde675d290e697a04b8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 24 Nov 2021 16:59:44 +0100
Subject: [PATCH 3332/4878] PCI: pci-bridge-emul: Set PCI_STATUS_CAP_LIST for
 PCIe device
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 3be9d243b21724d49b65043d4520d688b6040b36 upstream.

Since all PCI Express device Functions are required to implement the PCI
Express Capability structure, Capabilities List bit in PCI Status Register
must be hardwired to 1b. Capabilities Pointer register (which is already
set by pci-bride-emul.c driver) is valid only when Capabilities List is set
to 1b.

Link: https://lore.kernel.org/r/20211124155944.1290-7-pali@kernel.org
Fixes: 23a5fba4d941 ("PCI: Introduce PCI bridge emulated config space common logic")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-bridge-emul.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index 867159562d078..37504c2cce9b8 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -296,6 +296,7 @@ int pci_bridge_emul_init(struct pci_bridge_emul *bridge,
 
 	if (bridge->has_pcie) {
 		bridge->conf.capabilities_pointer = PCI_CAP_PCIE_START;
+		bridge->conf.status |= cpu_to_le16(PCI_STATUS_CAP_LIST);
 		bridge->pcie_conf.cap_id = PCI_CAP_ID_EXP;
 		bridge->pcie_conf.cap |= cpu_to_le16(PCI_EXP_TYPE_ROOT_PORT << 4);
 		bridge->pcie_cap_regs_behavior =
-- 
GitLab


From 56f974d583fcf7c8bb8b62d5164315de25268079 Mon Sep 17 00:00:00 2001
From: Ghalem Boudour <ghalem.boudour@6wind.com>
Date: Fri, 19 Nov 2021 18:20:16 +0100
Subject: [PATCH 3333/4878] xfrm: fix policy lookup for ipv6 gre packets

commit bcf141b2eb551b3477b24997ebc09c65f117a803 upstream.

On egress side, xfrm lookup is called from __gre6_xmit() with the
fl6_gre_key field not initialized leading to policies selectors check
failure. Consequently, gre packets are sent without encryption.

On ingress side, INET6_PROTO_NOPOLICY was set, thus packets were not
checked against xfrm policies. Like for egress side, fl6_gre_key should be
correctly set, this is now done in decode_session6().

Fixes: c12b395a4664 ("gre: Support GRE over IPv6")
Cc: stable@vger.kernel.org
Signed-off-by: Ghalem Boudour <ghalem.boudour@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/ip6_gre.c     |  5 ++++-
 net/xfrm/xfrm_policy.c | 21 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 09fa49bbf617d..9a0263f252323 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -755,6 +755,7 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
 		fl6->daddr = key->u.ipv6.dst;
 		fl6->flowlabel = key->label;
 		fl6->flowi6_uid = sock_net_uid(dev_net(dev), NULL);
+		fl6->fl6_gre_key = tunnel_id_to_key32(key->tun_id);
 
 		dsfield = key->tos;
 		flags = key->tun_flags &
@@ -990,6 +991,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
 		fl6.daddr = key->u.ipv6.dst;
 		fl6.flowlabel = key->label;
 		fl6.flowi6_uid = sock_net_uid(dev_net(dev), NULL);
+		fl6.fl6_gre_key = tunnel_id_to_key32(key->tun_id);
 
 		dsfield = key->tos;
 		if (!(tun_info->key.tun_flags & TUNNEL_ERSPAN_OPT))
@@ -1098,6 +1100,7 @@ static void ip6gre_tnl_link_config_common(struct ip6_tnl *t)
 	fl6->flowi6_oif = p->link;
 	fl6->flowlabel = 0;
 	fl6->flowi6_proto = IPPROTO_GRE;
+	fl6->fl6_gre_key = t->parms.o_key;
 
 	if (!(p->flags&IP6_TNL_F_USE_ORIG_TCLASS))
 		fl6->flowlabel |= IPV6_TCLASS_MASK & p->flowinfo;
@@ -1543,7 +1546,7 @@ static void ip6gre_fb_tunnel_init(struct net_device *dev)
 static struct inet6_protocol ip6gre_protocol __read_mostly = {
 	.handler     = gre_rcv,
 	.err_handler = ip6gre_err,
-	.flags       = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
+	.flags       = INET6_PROTO_FINAL,
 };
 
 static void ip6gre_destroy_tunnels(struct net *net, struct list_head *head)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 3a9831c05ec71..9f02d3fef1843 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -33,6 +33,7 @@
 #include <net/flow.h>
 #include <net/xfrm.h>
 #include <net/ip.h>
+#include <net/gre.h>
 #if IS_ENABLED(CONFIG_IPV6_MIP6)
 #include <net/mip6.h>
 #endif
@@ -3455,6 +3456,26 @@ decode_session6(struct sk_buff *skb, struct flowi *fl, bool reverse)
 			}
 			fl6->flowi6_proto = nexthdr;
 			return;
+		case IPPROTO_GRE:
+			if (!onlyproto &&
+			    (nh + offset + 12 < skb->data ||
+			     pskb_may_pull(skb, nh + offset + 12 - skb->data))) {
+				struct gre_base_hdr *gre_hdr;
+				__be32 *gre_key;
+
+				nh = skb_network_header(skb);
+				gre_hdr = (struct gre_base_hdr *)(nh + offset);
+				gre_key = (__be32 *)(gre_hdr + 1);
+
+				if (gre_hdr->flags & GRE_KEY) {
+					if (gre_hdr->flags & GRE_CSUM)
+						gre_key++;
+					fl6->fl6_gre_key = *gre_key;
+				}
+			}
+			fl6->flowi6_proto = nexthdr;
+			return;
+
 #if IS_ENABLED(CONFIG_IPV6_MIP6)
 		case IPPROTO_MH:
 			offset += ipv6_optlen(exthdr);
-- 
GitLab


From 09e0ef287e93c65b6a78d2dca34ad5a6c78ef93b Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Wed, 27 Oct 2021 18:30:25 +0100
Subject: [PATCH 3334/4878] btrfs: fix deadlock between quota enable and other
 quota operations

commit 232796df8c1437c41d308d161007f0715bac0a54 upstream.

When enabling quotas, we attempt to commit a transaction while holding the
mutex fs_info->qgroup_ioctl_lock. This can result on a deadlock with other
quota operations such as:

- qgroup creation and deletion, ioctl BTRFS_IOC_QGROUP_CREATE;

- adding and removing qgroup relations, ioctl BTRFS_IOC_QGROUP_ASSIGN.

This is because these operations join a transaction and after that they
attempt to lock the mutex fs_info->qgroup_ioctl_lock. Acquiring that mutex
after joining or starting a transaction is a pattern followed everywhere
in qgroups, so the quota enablement operation is the one at fault here,
and should not commit a transaction while holding that mutex.

Fix this by making the transaction commit while not holding the mutex.
We are safe from two concurrent tasks trying to enable quotas because
we are serialized by the rw semaphore fs_info->subvol_sem at
btrfs_ioctl_quota_ctl(), which is the only call site for enabling
quotas.

When this deadlock happens, it produces a trace like the following:

  INFO: task syz-executor:25604 blocked for more than 143 seconds.
  Not tainted 5.15.0-rc6 #4
  "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  task:syz-executor state:D stack:24800 pid:25604 ppid: 24873 flags:0x00004004
  Call Trace:
  context_switch kernel/sched/core.c:4940 [inline]
  __schedule+0xcd9/0x2530 kernel/sched/core.c:6287
  schedule+0xd3/0x270 kernel/sched/core.c:6366
  btrfs_commit_transaction+0x994/0x2e90 fs/btrfs/transaction.c:2201
  btrfs_quota_enable+0x95c/0x1790 fs/btrfs/qgroup.c:1120
  btrfs_ioctl_quota_ctl fs/btrfs/ioctl.c:4229 [inline]
  btrfs_ioctl+0x637e/0x7b70 fs/btrfs/ioctl.c:5010
  vfs_ioctl fs/ioctl.c:51 [inline]
  __do_sys_ioctl fs/ioctl.c:874 [inline]
  __se_sys_ioctl fs/ioctl.c:860 [inline]
  __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
  do_syscall_x64 arch/x86/entry/common.c:50 [inline]
  do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
  entry_SYSCALL_64_after_hwframe+0x44/0xae
  RIP: 0033:0x7f86920b2c4d
  RSP: 002b:00007f868f61ac58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
  RAX: ffffffffffffffda RBX: 00007f86921d90a0 RCX: 00007f86920b2c4d
  RDX: 0000000020005e40 RSI: 00000000c0109428 RDI: 0000000000000008
  RBP: 00007f869212bd80 R08: 0000000000000000 R09: 0000000000000000
  R10: 0000000000000000 R11: 0000000000000246 R12: 00007f86921d90a0
  R13: 00007fff6d233e4f R14: 00007fff6d233ff0 R15: 00007f868f61adc0
  INFO: task syz-executor:25628 blocked for more than 143 seconds.
  Not tainted 5.15.0-rc6 #4
  "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  task:syz-executor state:D stack:29080 pid:25628 ppid: 24873 flags:0x00004004
  Call Trace:
  context_switch kernel/sched/core.c:4940 [inline]
  __schedule+0xcd9/0x2530 kernel/sched/core.c:6287
  schedule+0xd3/0x270 kernel/sched/core.c:6366
  schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425
  __mutex_lock_common kernel/locking/mutex.c:669 [inline]
  __mutex_lock+0xc96/0x1680 kernel/locking/mutex.c:729
  btrfs_remove_qgroup+0xb7/0x7d0 fs/btrfs/qgroup.c:1548
  btrfs_ioctl_qgroup_create fs/btrfs/ioctl.c:4333 [inline]
  btrfs_ioctl+0x683c/0x7b70 fs/btrfs/ioctl.c:5014
  vfs_ioctl fs/ioctl.c:51 [inline]
  __do_sys_ioctl fs/ioctl.c:874 [inline]
  __se_sys_ioctl fs/ioctl.c:860 [inline]
  __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
  do_syscall_x64 arch/x86/entry/common.c:50 [inline]
  do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported-by: Hao Sun <sunhao.th@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CACkBjsZQF19bQ1C6=yetF3BvL10OSORpFUcWXTP6HErshDB4dQ@mail.gmail.com/
Fixes: 340f1aa27f36 ("btrfs: qgroups: Move transaction management inside btrfs_quota_enable/disable")
CC: stable@vger.kernel.org # 4.19
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/qgroup.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 4bac32a274ceb..f65aa4ed5ca1e 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -941,6 +941,14 @@ int btrfs_quota_enable(struct btrfs_fs_info *fs_info)
 	int ret = 0;
 	int slot;
 
+	/*
+	 * We need to have subvol_sem write locked, to prevent races between
+	 * concurrent tasks trying to enable quotas, because we will unlock
+	 * and relock qgroup_ioctl_lock before setting fs_info->quota_root
+	 * and before setting BTRFS_FS_QUOTA_ENABLED.
+	 */
+	lockdep_assert_held_write(&fs_info->subvol_sem);
+
 	mutex_lock(&fs_info->qgroup_ioctl_lock);
 	if (fs_info->quota_root)
 		goto out;
@@ -1118,8 +1126,19 @@ out_add_root:
 		goto out_free_path;
 	}
 
+	mutex_unlock(&fs_info->qgroup_ioctl_lock);
+	/*
+	 * Commit the transaction while not holding qgroup_ioctl_lock, to avoid
+	 * a deadlock with tasks concurrently doing other qgroup operations, such
+	 * adding/removing qgroups or adding/deleting qgroup relations for example,
+	 * because all qgroup operations first start or join a transaction and then
+	 * lock the qgroup_ioctl_lock mutex.
+	 * We are safe from a concurrent task trying to enable quotas, by calling
+	 * this function, since we are serialized by fs_info->subvol_sem.
+	 */
 	ret = btrfs_commit_transaction(trans);
 	trans = NULL;
+	mutex_lock(&fs_info->qgroup_ioctl_lock);
 	if (ret)
 		goto out_free_path;
 
-- 
GitLab


From e7764bccae77d3620113576ed18abd5233ba07a6 Mon Sep 17 00:00:00 2001
From: Josef Bacik <josef@toxicpanda.com>
Date: Wed, 24 Nov 2021 14:14:24 -0500
Subject: [PATCH 3335/4878] btrfs: check the root node for uptodate before
 returning it

commit 120de408e4b97504a2d9b5ca534b383de2c73d49 upstream.

Now that we clear the extent buffer uptodate if we fail to write it out
we need to check to see if our root node is uptodate before we search
down it.  Otherwise we could return stale data (or potentially corrupt
data that was caught by the write verification step) and think that the
path is OK to search down.

CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/ctree.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 519cf145f9bd1..5addd1e36a8ee 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2589,12 +2589,9 @@ static struct extent_buffer *btrfs_search_slot_get_root(struct btrfs_root *root,
 {
 	struct btrfs_fs_info *fs_info = root->fs_info;
 	struct extent_buffer *b;
-	int root_lock;
+	int root_lock = 0;
 	int level = 0;
 
-	/* We try very hard to do read locks on the root */
-	root_lock = BTRFS_READ_LOCK;
-
 	if (p->search_commit_root) {
 		/*
 		 * The commit roots are read only so we always do read locks,
@@ -2632,6 +2629,9 @@ static struct extent_buffer *btrfs_search_slot_get_root(struct btrfs_root *root,
 		goto out;
 	}
 
+	/* We try very hard to do read locks on the root */
+	root_lock = BTRFS_READ_LOCK;
+
 	/*
 	 * If the level is set to maximum, we can skip trying to get the read
 	 * lock.
@@ -2658,6 +2658,17 @@ static struct extent_buffer *btrfs_search_slot_get_root(struct btrfs_root *root,
 	level = btrfs_header_level(b);
 
 out:
+	/*
+	 * The root may have failed to write out at some point, and thus is no
+	 * longer valid, return an error in this case.
+	 */
+	if (!extent_buffer_uptodate(b)) {
+		if (root_lock)
+			btrfs_tree_unlock_rw(b, root_lock);
+		free_extent_buffer(b);
+		return ERR_PTR(-EIO);
+	}
+
 	p->nodes[level] = b;
 	if (!p->skip_locking)
 		p->locks[level] = root_lock;
-- 
GitLab


From f8c3ec2e21b9cd9dbb7b91de982d6016010c5605 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Thu, 16 Dec 2021 15:00:32 +0000
Subject: [PATCH 3336/4878] btrfs: respect the max size in the header when
 activating swap file

commit c2f822635df873c510bda6fb7fd1b10b7c31be2d upstream.

If we extended the size of a swapfile after its header was created (by the
mkswap utility) and then try to activate it, we will map the entire file
when activating the swap file, instead of limiting to the max size defined
in the swap file's header.

Currently test case generic/643 from fstests fails because we do not
respect that size limit defined in the swap file's header.

So fix this by not mapping file ranges beyond the max size defined in the
swap header.

This is the same type of bug that iomap used to have, and was fixed in
commit 36ca7943ac18ae ("mm/swap: consider max pages in
iomap_swapfile_add_extent").

Fixes: ed46ff3d423780 ("Btrfs: support swap files")
CC: stable@vger.kernel.org # 5.4+
Reviewed-and-tested-by: Josef Bacik <josef@toxicpanda.com
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/inode.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ff3f0638cdb90..1d9262a35473c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -10094,9 +10094,19 @@ static int btrfs_add_swap_extent(struct swap_info_struct *sis,
 				 struct btrfs_swap_info *bsi)
 {
 	unsigned long nr_pages;
+	unsigned long max_pages;
 	u64 first_ppage, first_ppage_reported, next_ppage;
 	int ret;
 
+	/*
+	 * Our swapfile may have had its size extended after the swap header was
+	 * written. In that case activating the swapfile should not go beyond
+	 * the max size set in the swap header.
+	 */
+	if (bsi->nr_pages >= sis->max)
+		return 0;
+
+	max_pages = sis->max - bsi->nr_pages;
 	first_ppage = ALIGN(bsi->block_start, PAGE_SIZE) >> PAGE_SHIFT;
 	next_ppage = ALIGN_DOWN(bsi->block_start + bsi->block_len,
 				PAGE_SIZE) >> PAGE_SHIFT;
@@ -10104,6 +10114,7 @@ static int btrfs_add_swap_extent(struct swap_info_struct *sis,
 	if (first_ppage >= next_ppage)
 		return 0;
 	nr_pages = next_ppage - first_ppage;
+	nr_pages = min(nr_pages, max_pages);
 
 	first_ppage_reported = first_ppage;
 	if (bsi->start == 0)
-- 
GitLab


From 762e4c33e9e5ecdcfedb1752e38c2aac2921df2e Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 7 Oct 2021 17:53:36 +0200
Subject: [PATCH 3337/4878] ext4: make sure to reset inode lockdep class when
 quota enabling fails

commit 4013d47a5307fdb5c13370b5392498b00fedd274 upstream.

When we succeed in enabling some quota type but fail to enable another
one with quota feature, we correctly disable all enabled quota types.
However we forget to reset i_data_sem lockdep class. When the inode gets
freed and reused, it will inherit this lockdep class (i_data_sem is
initialized only when a slab is created) and thus eventually lockdep
barfs about possible deadlocks.

Reported-and-tested-by: syzbot+3b6f9218b1301ddda3e2@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20211007155336.12493-3-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/super.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b1af6588bad01..c7a5e0c8d3fbc 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6427,8 +6427,19 @@ static int ext4_enable_quotas(struct super_block *sb)
 					"Failed to enable quota tracking "
 					"(type=%d, err=%d). Please run "
 					"e2fsck to fix.", type, err);
-				for (type--; type >= 0; type--)
+				for (type--; type >= 0; type--) {
+					struct inode *inode;
+
+					inode = sb_dqopt(sb)->files[type];
+					if (inode)
+						inode = igrab(inode);
 					dquot_quota_off(sb, type);
+					if (inode) {
+						lockdep_set_quota_inode(inode,
+							I_DATA_SEM_NORMAL);
+						iput(inode);
+					}
+				}
 
 				return err;
 			}
-- 
GitLab


From 115b762b48ab83de2898b8c1a38e3799446a97af Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 7 Oct 2021 17:53:35 +0200
Subject: [PATCH 3338/4878] ext4: make sure quota gets properly shutdown on
 error

commit 15fc69bbbbbc8c72e5f6cc4e1be0f51283c5448e upstream.

When we hit an error when enabling quotas and setting inode flags, we do
not properly shutdown quota subsystem despite returning error from
Q_QUOTAON quotactl. This can lead to some odd situations like kernel
using quota file while it is still writeable for userspace. Make sure we
properly cleanup the quota subsystem in case of error.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20211007155336.12493-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/super.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c7a5e0c8d3fbc..408d8085a8b67 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6341,10 +6341,7 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 
 	lockdep_set_quota_inode(path->dentry->d_inode, I_DATA_SEM_QUOTA);
 	err = dquot_quota_on(sb, type, format_id, path);
-	if (err) {
-		lockdep_set_quota_inode(path->dentry->d_inode,
-					     I_DATA_SEM_NORMAL);
-	} else {
+	if (!err) {
 		struct inode *inode = d_inode(path->dentry);
 		handle_t *handle;
 
@@ -6364,7 +6361,12 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 		ext4_journal_stop(handle);
 	unlock_inode:
 		inode_unlock(inode);
+		if (err)
+			dquot_quota_off(sb, type);
 	}
+	if (err)
+		lockdep_set_quota_inode(path->dentry->d_inode,
+					     I_DATA_SEM_NORMAL);
 	return err;
 }
 
-- 
GitLab


From f9ed0ea0a9fc59de71b230ff02f59a51fd174ca7 Mon Sep 17 00:00:00 2001
From: Chunguang Xu <brookxu@tencent.com>
Date: Tue, 23 Nov 2021 09:17:57 +0800
Subject: [PATCH 3339/4878] ext4: fix a possible ABBA deadlock due to busy PA

commit 8c80fb312d7abf8bcd66cca1d843a80318a2c522 upstream.

We found on older kernel (3.10) that in the scenario of insufficient
disk space, system may trigger an ABBA deadlock problem, it seems that
this problem still exists in latest kernel, try to fix it here. The
main process triggered by this problem is that task A occupies the PA
and waits for the jbd2 transaction finish, the jbd2 transaction waits
for the completion of task B's IO (plug_list), but task B waits for
the release of PA by task A to finish discard, which indirectly forms
an ABBA deadlock. The related calltrace is as follows:

    Task A
    vfs_write
    ext4_mb_new_blocks()
    ext4_mb_mark_diskspace_used()       JBD2
    jbd2_journal_get_write_access()  -> jbd2_journal_commit_transaction()
  ->schedule()                          filemap_fdatawait()
 |                                              |
 | Task B                                       |
 | do_unlinkat()                                |
 | ext4_evict_inode()                           |
 | jbd2_journal_begin_ordered_truncate()        |
 | filemap_fdatawrite_range()                   |
 | ext4_mb_new_blocks()                         |
  -ext4_mb_discard_group_preallocations() <-----

Here, try to cancel ext4_mb_discard_group_preallocations() internal
retry due to PA busy, and do a limited number of retries inside
ext4_mb_discard_preallocations(), which can circumvent the above
problems, but also has some advantages:

1. Since the PA is in a busy state, if other groups have free PAs,
   keeping the current PA may help to reduce fragmentation.
2. Continue to traverse forward instead of waiting for the current
   group PA to be released. In most scenarios, the PA discard time
   can be reduced.

However, in the case of smaller free space, if only a few groups have
space, then due to multiple traversals of the group, it may increase
CPU overhead. But in contrast, I feel that the overall benefit is
better than the cost.

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/1637630277-23496-1-git-send-email-brookxu.cn@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/mballoc.c | 40 ++++++++++++++++++----------------------
 1 file changed, 18 insertions(+), 22 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 60aef7fdd61d0..e40f87d07783a 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4234,7 +4234,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
  */
 static noinline_for_stack int
 ext4_mb_discard_group_preallocations(struct super_block *sb,
-					ext4_group_t group, int needed)
+				     ext4_group_t group, int *busy)
 {
 	struct ext4_group_info *grp = ext4_get_group_info(sb, group);
 	struct buffer_head *bitmap_bh = NULL;
@@ -4242,8 +4242,7 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
 	struct list_head list;
 	struct ext4_buddy e4b;
 	int err;
-	int busy = 0;
-	int free, free_total = 0;
+	int free = 0;
 
 	mb_debug(sb, "discard preallocation for group %u\n", group);
 	if (list_empty(&grp->bb_prealloc_list))
@@ -4266,19 +4265,14 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
 		goto out_dbg;
 	}
 
-	if (needed == 0)
-		needed = EXT4_CLUSTERS_PER_GROUP(sb) + 1;
-
 	INIT_LIST_HEAD(&list);
-repeat:
-	free = 0;
 	ext4_lock_group(sb, group);
 	list_for_each_entry_safe(pa, tmp,
 				&grp->bb_prealloc_list, pa_group_list) {
 		spin_lock(&pa->pa_lock);
 		if (atomic_read(&pa->pa_count)) {
 			spin_unlock(&pa->pa_lock);
-			busy = 1;
+			*busy = 1;
 			continue;
 		}
 		if (pa->pa_deleted) {
@@ -4318,22 +4312,13 @@ repeat:
 		call_rcu(&(pa)->u.pa_rcu, ext4_mb_pa_callback);
 	}
 
-	free_total += free;
-
-	/* if we still need more blocks and some PAs were used, try again */
-	if (free_total < needed && busy) {
-		ext4_unlock_group(sb, group);
-		cond_resched();
-		busy = 0;
-		goto repeat;
-	}
 	ext4_unlock_group(sb, group);
 	ext4_mb_unload_buddy(&e4b);
 	put_bh(bitmap_bh);
 out_dbg:
 	mb_debug(sb, "discarded (%d) blocks preallocated for group %u bb_free (%d)\n",
-		 free_total, group, grp->bb_free);
-	return free_total;
+		 free, group, grp->bb_free);
+	return free;
 }
 
 /*
@@ -4875,13 +4860,24 @@ static int ext4_mb_discard_preallocations(struct super_block *sb, int needed)
 {
 	ext4_group_t i, ngroups = ext4_get_groups_count(sb);
 	int ret;
-	int freed = 0;
+	int freed = 0, busy = 0;
+	int retry = 0;
 
 	trace_ext4_mb_discard_preallocations(sb, needed);
+
+	if (needed == 0)
+		needed = EXT4_CLUSTERS_PER_GROUP(sb) + 1;
+ repeat:
 	for (i = 0; i < ngroups && needed > 0; i++) {
-		ret = ext4_mb_discard_group_preallocations(sb, i, needed);
+		ret = ext4_mb_discard_group_preallocations(sb, i, &busy);
 		freed += ret;
 		needed -= ret;
+		cond_resched();
+	}
+
+	if (needed > 0 && busy && ++retry < 3) {
+		busy = 0;
+		goto repeat;
 	}
 
 	return freed;
-- 
GitLab


From 720508dd118d04035875823f44bcd27388ff39b2 Mon Sep 17 00:00:00 2001
From: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Date: Wed, 1 Dec 2021 08:34:21 -0800
Subject: [PATCH 3340/4878] ext4: initialize err_blk before calling
 __ext4_get_inode_loc

commit c27c29c6af4f3f4ce925a2111c256733c5a5b430 upstream.

It is not guaranteed that __ext4_get_inode_loc will definitely set
err_blk pointer when it returns EIO. To avoid using uninitialized
variables, let's first set err_blk to 0.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20211201163421.2631661-1-harshads@google.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 317aa1b90fb95..a6ee5399526b6 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4445,7 +4445,7 @@ has_buffer:
 static int __ext4_get_inode_loc_noinmem(struct inode *inode,
 					struct ext4_iloc *iloc)
 {
-	ext4_fsblk_t err_blk;
+	ext4_fsblk_t err_blk = 0;
 	int ret;
 
 	ret = __ext4_get_inode_loc(inode->i_sb, inode->i_ino, iloc, 0,
@@ -4460,7 +4460,7 @@ static int __ext4_get_inode_loc_noinmem(struct inode *inode,
 
 int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
 {
-	ext4_fsblk_t err_blk;
+	ext4_fsblk_t err_blk = 0;
 	int ret;
 
 	/* We have all inode data except xattrs in memory here. */
-- 
GitLab


From e4221629d5e1479db400d8a4cbf865c65a457630 Mon Sep 17 00:00:00 2001
From: Xin Yin <yinxin.x@bytedance.com>
Date: Tue, 21 Dec 2021 10:28:39 +0800
Subject: [PATCH 3341/4878] ext4: fix fast commit may miss tracking range for
 FALLOC_FL_ZERO_RANGE

commit 5e4d0eba1ccaf19f93222abdeda5a368be141785 upstream.

when call falloc with FALLOC_FL_ZERO_RANGE, to set an range to unwritten,
which has been already initialized. If the range is align to blocksize,
fast commit will not track range for this change.

Also track range for unwritten range in ext4_map_blocks().

Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20211221022839.374606-1-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/extents.c | 2 --
 fs/ext4/inode.c   | 7 ++++---
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index b8c9df6ab67f5..b297b14de7509 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4638,8 +4638,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 	ret = ext4_mark_inode_dirty(handle, inode);
 	if (unlikely(ret))
 		goto out_handle;
-	ext4_fc_track_range(handle, inode, offset >> inode->i_sb->s_blocksize_bits,
-			(offset + len - 1) >> inode->i_sb->s_blocksize_bits);
 	/* Zero out partial block at the edges of the range */
 	ret = ext4_zero_partial_blocks(handle, inode, offset, len);
 	if (ret >= 0)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index a6ee5399526b6..700dfd2acd632 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -741,10 +741,11 @@ out_sem:
 			if (ret)
 				return ret;
 		}
-		ext4_fc_track_range(handle, inode, map->m_lblk,
-			    map->m_lblk + map->m_len - 1);
 	}
-
+	if (retval > 0 && (map->m_flags & EXT4_MAP_UNWRITTEN ||
+				map->m_flags & EXT4_MAP_MAPPED))
+		ext4_fc_track_range(handle, inode, map->m_lblk,
+					map->m_lblk + map->m_len - 1);
 	if (retval < 0)
 		ext_debug(inode, "failed with err %d\n", retval);
 	return retval;
-- 
GitLab


From da364ab35892f69785266a93bd174f647db1f670 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lu=C3=ADs=20Henriques?= <lhenriques@suse.de>
Date: Tue, 14 Dec 2021 17:50:58 +0000
Subject: [PATCH 3342/4878] ext4: set csum seed in tmp inode while migrating to
 extents
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e81c9302a6c3c008f5c30beb73b38adb0170ff2d upstream.

When migrating to extents, the temporary inode will have it's own checksum
seed.  This means that, when swapping the inodes data, the inode checksums
will be incorrect.

This can be fixed by recalculating the extents checksums again.  Or simply
by copying the seed into the temporary inode.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=213357
Reported-by: Jeroen van Wolffelaar <jeroen@wolffelaar.nl>
Signed-off-by: Luís Henriques <lhenriques@suse.de>
Link: https://lore.kernel.org/r/20211214175058.19511-1-lhenriques@suse.de
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/migrate.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index c5e3fc998211a..69cc3f8e03bdd 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -459,6 +459,17 @@ int ext4_ext_migrate(struct inode *inode)
 		ext4_journal_stop(handle);
 		goto out_unlock;
 	}
+	/*
+	 * Use the correct seed for checksum (i.e. the seed from 'inode').  This
+	 * is so that the metadata blocks will have the correct checksum after
+	 * the migration.
+	 *
+	 * Note however that, if a crash occurs during the migration process,
+	 * the recovery process is broken because the tmp_inode checksums will
+	 * be wrong and the orphans cleanup will fail.
+	 */
+	ei = EXT4_I(inode);
+	EXT4_I(tmp_inode)->i_csum_seed = ei->i_csum_seed;
 	i_size_write(tmp_inode, i_size_read(inode));
 	/*
 	 * Set the i_nlink to zero so it will be deleted later
@@ -502,7 +513,6 @@ int ext4_ext_migrate(struct inode *inode)
 		goto out_tmp_inode;
 	}
 
-	ei = EXT4_I(inode);
 	i_data = ei->i_data;
 	memset(&lb, 0, sizeof(lb));
 
-- 
GitLab


From 53998b3f6dcde1d6553e27db1957ac0545a6e19f Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Thu, 23 Dec 2021 09:55:06 +0800
Subject: [PATCH 3343/4878] ext4: Fix BUG_ON in ext4_bread when write quota
 data

commit 380a0091cab482489e9b19e07f2a166ad2b76d5c upstream.

We got issue as follows when run syzkaller:
[  167.936972] EXT4-fs error (device loop0): __ext4_remount:6314: comm rep: Abort forced by user
[  167.938306] EXT4-fs (loop0): Remounting filesystem read-only
[  167.981637] Assertion failure in ext4_getblk() at fs/ext4/inode.c:847: '(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_FC_REPLAY) || handle != NULL || create == 0'
[  167.983601] ------------[ cut here ]------------
[  167.984245] kernel BUG at fs/ext4/inode.c:847!
[  167.984882] invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
[  167.985624] CPU: 7 PID: 2290 Comm: rep Tainted: G    B             5.16.0-rc5-next-20211217+ #123
[  167.986823] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014
[  167.988590] RIP: 0010:ext4_getblk+0x17e/0x504
[  167.989189] Code: c6 01 74 28 49 c7 c0 a0 a3 5c 9b b9 4f 03 00 00 48 c7 c2 80 9c 5c 9b 48 c7 c6 40 b6 5c 9b 48 c7 c7 20 a4 5c 9b e8 77 e3 fd ff <0f> 0b 8b 04 244
[  167.991679] RSP: 0018:ffff8881736f7398 EFLAGS: 00010282
[  167.992385] RAX: 0000000000000094 RBX: 1ffff1102e6dee75 RCX: 0000000000000000
[  167.993337] RDX: 0000000000000001 RSI: ffffffff9b6e29e0 RDI: ffffed102e6dee66
[  167.994292] RBP: ffff88816a076210 R08: 0000000000000094 R09: ffffed107363fa09
[  167.995252] R10: ffff88839b1fd047 R11: ffffed107363fa08 R12: ffff88816a0761e8
[  167.996205] R13: 0000000000000000 R14: 0000000000000021 R15: 0000000000000001
[  167.997158] FS:  00007f6a1428c740(0000) GS:ffff88839b000000(0000) knlGS:0000000000000000
[  167.998238] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  167.999025] CR2: 00007f6a140716c8 CR3: 0000000133216000 CR4: 00000000000006e0
[  167.999987] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  168.000944] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  168.001899] Call Trace:
[  168.002235]  <TASK>
[  168.007167]  ext4_bread+0xd/0x53
[  168.007612]  ext4_quota_write+0x20c/0x5c0
[  168.010457]  write_blk+0x100/0x220
[  168.010944]  remove_free_dqentry+0x1c6/0x440
[  168.011525]  free_dqentry.isra.0+0x565/0x830
[  168.012133]  remove_tree+0x318/0x6d0
[  168.014744]  remove_tree+0x1eb/0x6d0
[  168.017346]  remove_tree+0x1eb/0x6d0
[  168.019969]  remove_tree+0x1eb/0x6d0
[  168.022128]  qtree_release_dquot+0x291/0x340
[  168.023297]  v2_release_dquot+0xce/0x120
[  168.023847]  dquot_release+0x197/0x3e0
[  168.024358]  ext4_release_dquot+0x22a/0x2d0
[  168.024932]  dqput.part.0+0x1c9/0x900
[  168.025430]  __dquot_drop+0x120/0x190
[  168.025942]  ext4_clear_inode+0x86/0x220
[  168.026472]  ext4_evict_inode+0x9e8/0xa22
[  168.028200]  evict+0x29e/0x4f0
[  168.028625]  dispose_list+0x102/0x1f0
[  168.029148]  evict_inodes+0x2c1/0x3e0
[  168.030188]  generic_shutdown_super+0xa4/0x3b0
[  168.030817]  kill_block_super+0x95/0xd0
[  168.031360]  deactivate_locked_super+0x85/0xd0
[  168.031977]  cleanup_mnt+0x2bc/0x480
[  168.033062]  task_work_run+0xd1/0x170
[  168.033565]  do_exit+0xa4f/0x2b50
[  168.037155]  do_group_exit+0xef/0x2d0
[  168.037666]  __x64_sys_exit_group+0x3a/0x50
[  168.038237]  do_syscall_64+0x3b/0x90
[  168.038751]  entry_SYSCALL_64_after_hwframe+0x44/0xae

In order to reproduce this problem, the following conditions need to be met:
1. Ext4 filesystem with no journal;
2. Filesystem image with incorrect quota data;
3. Abort filesystem forced by user;
4. umount filesystem;

As in ext4_quota_write:
...
         if (EXT4_SB(sb)->s_journal && !handle) {
                 ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
                         " cancelled because transaction is not started",
                         (unsigned long long)off, (unsigned long long)len);
                 return -EIO;
         }
...
We only check handle if NULL when filesystem has journal. There is need
check handle if NULL even when filesystem has no journal.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20211223015506.297766-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 408d8085a8b67..a4713fdde21e0 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6545,7 +6545,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
 	struct buffer_head *bh;
 	handle_t *handle = journal_current_handle();
 
-	if (EXT4_SB(sb)->s_journal && !handle) {
+	if (!handle) {
 		ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
 			" cancelled because transaction is not started",
 			(unsigned long long)off, (unsigned long long)len);
-- 
GitLab


From 04b562730677630d905a9e47c5e4826888745ebc Mon Sep 17 00:00:00 2001
From: Xin Yin <yinxin.x@bytedance.com>
Date: Thu, 23 Dec 2021 11:23:36 +0800
Subject: [PATCH 3344/4878] ext4: use ext4_ext_remove_space() for fast commit
 replay delete range

commit 0b5b5a62b945a141e64011b2f90ee7e46f14be98 upstream.

For now ,we use ext4_punch_hole() during fast commit replay delete range
procedure. But it will be affected by inode->i_size, which may not
correct during fast commit replay procedure. The following test will
failed.

-create & write foo (len 1000K)
-falloc FALLOC_FL_ZERO_RANGE foo (range 400K - 600K)
-create & fsync bar
-falloc FALLOC_FL_PUNCH_HOLE foo (range 300K-500K)
-fsync foo
-crash before a full commit

After the fast_commit reply procedure, the range 400K-500K will not be
removed. Because in this case, when calling ext4_punch_hole() the
inode->i_size is 0, and it just retruns with doing nothing.

Change to use ext4_ext_remove_space() instead of ext4_punch_hole()
to remove blocks of inode directly.

Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20211223032337.5198-2-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/fast_commit.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 08ca690f928bd..02cb1a1e6111e 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1764,11 +1764,14 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
 		}
 	}
 
-	ret = ext4_punch_hole(inode,
-		le32_to_cpu(lrange.fc_lblk) << sb->s_blocksize_bits,
-		le32_to_cpu(lrange.fc_len) <<  sb->s_blocksize_bits);
-	if (ret)
-		jbd_debug(1, "ext4_punch_hole returned %d", ret);
+	down_write(&EXT4_I(inode)->i_data_sem);
+	ret = ext4_ext_remove_space(inode, lrange.fc_lblk,
+				lrange.fc_lblk + lrange.fc_len - 1);
+	up_write(&EXT4_I(inode)->i_data_sem);
+	if (ret) {
+		iput(inode);
+		return 0;
+	}
 	ext4_ext_replay_shrink_inode(inode,
 		i_size_read(inode) >> sb->s_blocksize_bits);
 	ext4_mark_inode_dirty(NULL, inode);
-- 
GitLab


From f26b24b4c115f9c8fe8defd2c158420d30b7af0f Mon Sep 17 00:00:00 2001
From: Xin Yin <yinxin.x@bytedance.com>
Date: Thu, 23 Dec 2021 11:23:37 +0800
Subject: [PATCH 3345/4878] ext4: fast commit may miss tracking unwritten range
 during ftruncate

commit 9725958bb75cdfa10f2ec11526fdb23e7485e8e4 upstream.

If use FALLOC_FL_KEEP_SIZE to alloc unwritten range at bottom, the
inode->i_size will not include the unwritten range. When call
ftruncate with fast commit enabled, it will miss to track the
unwritten range.

Change to trace the full range during ftruncate.

Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20211223032337.5198-3-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 700dfd2acd632..d59474a541897 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5468,8 +5468,7 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 				ext4_fc_track_range(handle, inode,
 					(attr->ia_size > 0 ? attr->ia_size - 1 : 0) >>
 					inode->i_sb->s_blocksize_bits,
-					(oldsize > 0 ? oldsize - 1 : 0) >>
-					inode->i_sb->s_blocksize_bits);
+					EXT_MAX_BLOCKS - 1);
 			else
 				ext4_fc_track_range(
 					handle, inode,
-- 
GitLab


From d60e9daba29e44e0f277333e46fff90c74509398 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 23 Dec 2021 17:44:36 +0100
Subject: [PATCH 3346/4878] ext4: destroy ext4_fc_dentry_cachep kmemcache on
 module removal

commit ab047d516dea72f011c15c04a929851e4d053109 upstream.

The kmemcache for ext4_fc_dentry_cachep remains registered after module
removal.

Destroy ext4_fc_dentry_cachep kmemcache on module removal.

Fixes: aa75f4d3daaeb ("ext4: main fast-commit commit path")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20211110134640.lyku5vklvdndw6uk@linutronix.de
Link: https://lore.kernel.org/r/YbiK3JetFFl08bd7@linutronix.de
Link: https://lore.kernel.org/r/20211223164436.2628390-1-bigeasy@linutronix.de
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/ext4.h        | 1 +
 fs/ext4/fast_commit.c | 5 +++++
 fs/ext4/super.c       | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 115a77b96e5e1..99d98d1010217 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2778,6 +2778,7 @@ bool ext4_fc_replay_check_excluded(struct super_block *sb, ext4_fsblk_t block);
 void ext4_fc_replay_cleanup(struct super_block *sb);
 int ext4_fc_commit(journal_t *journal, tid_t commit_tid);
 int __init ext4_fc_init_dentry_cache(void);
+void ext4_fc_destroy_dentry_cache(void);
 
 /* mballoc.c */
 extern const struct seq_operations ext4_mb_seq_groups_ops;
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 02cb1a1e6111e..f483abcd5213a 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -2169,3 +2169,8 @@ int __init ext4_fc_init_dentry_cache(void)
 
 	return 0;
 }
+
+void ext4_fc_destroy_dentry_cache(void)
+{
+	kmem_cache_destroy(ext4_fc_dentry_cachep);
+}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index a4713fdde21e0..9e210bc85c817 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6729,6 +6729,7 @@ static int __init ext4_init_fs(void)
 out:
 	unregister_as_ext2();
 	unregister_as_ext3();
+	ext4_fc_destroy_dentry_cache();
 out05:
 	destroy_inodecache();
 out1:
@@ -6755,6 +6756,7 @@ static void __exit ext4_exit_fs(void)
 	unregister_as_ext2();
 	unregister_as_ext3();
 	unregister_filesystem(&ext4_fs_type);
+	ext4_fc_destroy_dentry_cache();
 	destroy_inodecache();
 	ext4_exit_mballoc();
 	ext4_exit_sysfs();
-- 
GitLab


From 679fb065326be0bff3d7463cfc975cddeeae9d68 Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Fri, 24 Dec 2021 18:03:41 +0800
Subject: [PATCH 3347/4878] ext4: fix null-ptr-deref in
 '__ext4_journal_ensure_credits'

commit 298b5c521746d69c07beb2757292fb5ccc1b0f85 upstream.

We got issue as follows when run syzkaller test:
[ 1901.130043] EXT4-fs error (device vda): ext4_remount:5624: comm syz-executor.5: Abort forced by user
[ 1901.130901] Aborting journal on device vda-8.
[ 1901.131437] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.16: Detected aborted journal
[ 1901.131566] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.11: Detected aborted journal
[ 1901.132586] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.18: Detected aborted journal
[ 1901.132751] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.9: Detected aborted journal
[ 1901.136149] EXT4-fs error (device vda) in ext4_reserve_inode_write:6035: Journal has aborted
[ 1901.136837] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-fuzzer: Detected aborted journal
[ 1901.136915] ==================================================================
[ 1901.138175] BUG: KASAN: null-ptr-deref in __ext4_journal_ensure_credits+0x74/0x140 [ext4]
[ 1901.138343] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.13: Detected aborted journal
[ 1901.138398] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.1: Detected aborted journal
[ 1901.138808] Read of size 8 at addr 0000000000000000 by task syz-executor.17/968
[ 1901.138817]
[ 1901.138852] EXT4-fs error (device vda): ext4_journal_check_start:61: comm syz-executor.30: Detected aborted journal
[ 1901.144779] CPU: 1 PID: 968 Comm: syz-executor.17 Not tainted 4.19.90-vhulk2111.1.0.h893.eulerosv2r10.aarch64+ #1
[ 1901.146479] Hardware name: linux,dummy-virt (DT)
[ 1901.147317] Call trace:
[ 1901.147552]  dump_backtrace+0x0/0x2d8
[ 1901.147898]  show_stack+0x28/0x38
[ 1901.148215]  dump_stack+0xec/0x15c
[ 1901.148746]  kasan_report+0x108/0x338
[ 1901.149207]  __asan_load8+0x58/0xb0
[ 1901.149753]  __ext4_journal_ensure_credits+0x74/0x140 [ext4]
[ 1901.150579]  ext4_xattr_delete_inode+0xe4/0x700 [ext4]
[ 1901.151316]  ext4_evict_inode+0x524/0xba8 [ext4]
[ 1901.151985]  evict+0x1a4/0x378
[ 1901.152353]  iput+0x310/0x428
[ 1901.152733]  do_unlinkat+0x260/0x428
[ 1901.153056]  __arm64_sys_unlinkat+0x6c/0xc0
[ 1901.153455]  el0_svc_common+0xc8/0x320
[ 1901.153799]  el0_svc_handler+0xf8/0x160
[ 1901.154265]  el0_svc+0x10/0x218
[ 1901.154682] ==================================================================

This issue may happens like this:
	Process1                               Process2
ext4_evict_inode
  ext4_journal_start
   ext4_truncate
     ext4_ind_truncate
       ext4_free_branches
         ext4_ind_truncate_ensure_credits
	   ext4_journal_ensure_credits_fn
	     ext4_journal_restart
	       handle->h_transaction = NULL;
                                           mount -o remount,abort  /mnt
					   -> trigger JBD abort
               start_this_handle -> will return failed
  ext4_xattr_delete_inode
    ext4_journal_ensure_credits
      ext4_journal_ensure_credits_fn
        __ext4_journal_ensure_credits
	  jbd2_handle_buffer_credits
	    journal = handle->h_transaction->t_journal; ->null-ptr-deref

Now, indirect truncate process didn't handle error. To solve this issue
maybe simply add check handle is abort in '__ext4_journal_ensure_credits'
is enough, and i also think this is necessary.

Cc: stable@kernel.org
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20211224100341.3299128-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/ext4_jbd2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index 0fd0c42a4f7db..6ff7b4020df8a 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -162,6 +162,8 @@ int __ext4_journal_ensure_credits(handle_t *handle, int check_cred,
 {
 	if (!ext4_handle_valid(handle))
 		return 0;
+	if (is_handle_aborted(handle))
+		return -EROFS;
 	if (jbd2_handle_buffer_credits(handle) >= check_cred &&
 	    handle->h_revoke_credits >= revoke_cred)
 		return 0;
-- 
GitLab


From 0ca7ec6db20c66b91277c231780e9f05b42a8163 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 5 Jan 2022 23:59:56 -0500
Subject: [PATCH 3348/4878] ext4: don't use the orphan list when migrating an
 inode

commit 6eeaf88fd586f05aaf1d48cb3a139d2a5c6eb055 upstream.

We probably want to remove the indirect block to extents migration
feature after a deprecation window, but until then, let's fix a
potential data loss problem caused by the fact that we put the
tmp_inode on the orphan list.  In the unlikely case where we crash and
do a journal recovery, the data blocks belonging to the inode being
migrated are also represented in the tmp_inode on the orphan list ---
and so its data blocks will get marked unallocated, and available for
reuse.

Instead, stop putting the tmp_inode on the oprhan list.  So in the
case where we crash while migrating the inode, we'll leak an inode,
which is not a disaster.  It will be easily fixed the next time we run
fsck, and it's better than potentially having blocks getting claimed
by two different files, and losing data as a result.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/migrate.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 69cc3f8e03bdd..49912814f3d8d 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -437,12 +437,12 @@ int ext4_ext_migrate(struct inode *inode)
 	percpu_down_write(&sbi->s_writepages_rwsem);
 
 	/*
-	 * Worst case we can touch the allocation bitmaps, a bgd
-	 * block, and a block to link in the orphan list.  We do need
-	 * need to worry about credits for modifying the quota inode.
+	 * Worst case we can touch the allocation bitmaps and a block
+	 * group descriptor block.  We do need need to worry about
+	 * credits for modifying the quota inode.
 	 */
 	handle = ext4_journal_start(inode, EXT4_HT_MIGRATE,
-		4 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));
+		3 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));
 
 	if (IS_ERR(handle)) {
 		retval = PTR_ERR(handle);
@@ -463,10 +463,6 @@ int ext4_ext_migrate(struct inode *inode)
 	 * Use the correct seed for checksum (i.e. the seed from 'inode').  This
 	 * is so that the metadata blocks will have the correct checksum after
 	 * the migration.
-	 *
-	 * Note however that, if a crash occurs during the migration process,
-	 * the recovery process is broken because the tmp_inode checksums will
-	 * be wrong and the orphans cleanup will fail.
 	 */
 	ei = EXT4_I(inode);
 	EXT4_I(tmp_inode)->i_csum_seed = ei->i_csum_seed;
@@ -478,7 +474,6 @@ int ext4_ext_migrate(struct inode *inode)
 	clear_nlink(tmp_inode);
 
 	ext4_ext_tree_init(handle, tmp_inode);
-	ext4_orphan_add(handle, tmp_inode);
 	ext4_journal_stop(handle);
 
 	/*
@@ -503,12 +498,6 @@ int ext4_ext_migrate(struct inode *inode)
 
 	handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);
 	if (IS_ERR(handle)) {
-		/*
-		 * It is impossible to update on-disk structures without
-		 * a handle, so just rollback in-core changes and live other
-		 * work to orphan_list_cleanup()
-		 */
-		ext4_orphan_del(NULL, tmp_inode);
 		retval = PTR_ERR(handle);
 		goto out_tmp_inode;
 	}
-- 
GitLab


From 7bb99c7e13f8417f81247b2acea8ceaae0c5afb3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Mon, 17 Jan 2022 10:31:26 +0100
Subject: [PATCH 3349/4878] drm/radeon: fix error handling in
 radeon_driver_open_kms
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 4722f463896cc0ef1a6f1c3cb2e171e949831249 upstream.

The return value was never initialized so the cleanup code executed when
it isn't even necessary.

Just add proper error handling.

Fixes: ab50cb9df889 ("drm/radeon/radeon_kms: Fix a NULL pointer dereference in radeon_driver_open_kms()")
Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/radeon/radeon_kms.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 204634b239283..32070e94f6c49 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -652,18 +652,18 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 		fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
 		if (unlikely(!fpriv)) {
 			r = -ENOMEM;
-			goto out_suspend;
+			goto err_suspend;
 		}
 
 		if (rdev->accel_working) {
 			vm = &fpriv->vm;
 			r = radeon_vm_init(rdev, vm);
 			if (r)
-				goto out_fpriv;
+				goto err_fpriv;
 
 			r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
 			if (r)
-				goto out_vm_fini;
+				goto err_vm_fini;
 
 			/* map the ib pool buffer read only into
 			 * virtual address space */
@@ -671,7 +671,7 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 							rdev->ring_tmp_bo.bo);
 			if (!vm->ib_bo_va) {
 				r = -ENOMEM;
-				goto out_vm_fini;
+				goto err_vm_fini;
 			}
 
 			r = radeon_vm_bo_set_addr(rdev, vm->ib_bo_va,
@@ -679,19 +679,21 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 						  RADEON_VM_PAGE_READABLE |
 						  RADEON_VM_PAGE_SNOOPED);
 			if (r)
-				goto out_vm_fini;
+				goto err_vm_fini;
 		}
 		file_priv->driver_priv = fpriv;
 	}
 
-	if (!r)
-		goto out_suspend;
+	pm_runtime_mark_last_busy(dev->dev);
+	pm_runtime_put_autosuspend(dev->dev);
+	return 0;
 
-out_vm_fini:
+err_vm_fini:
 	radeon_vm_fini(rdev, vm);
-out_fpriv:
+err_fpriv:
 	kfree(fpriv);
-out_suspend:
+
+err_suspend:
 	pm_runtime_mark_last_busy(dev->dev);
 	pm_runtime_put_autosuspend(dev->dev);
 	return r;
-- 
GitLab


From 12224c0d19f34edaca246b99fd79b076b0abadaa Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Thu, 30 Dec 2021 18:31:53 +0200
Subject: [PATCH 3350/4878] of: base: Improve argument length mismatch error

commit 5d05b811b5acb92fc581a7b328b36646c86f5ab9 upstream.

The cells_name field of of_phandle_iterator might be NULL. Use the
phandle name instead. With this change instead of:

  OF: /soc/pinctrl@1000000: (null) = 3 found 2

We get:

  OF: /soc/pinctrl@1000000: phandle pinctrl@1000000 needs 3, found 2

Which is a more helpful messages making DT debugging easier.

In this particular example the phandle name looks like duplicate of the
same node name. But note that the first node is the parent node
(it->parent), while the second is the phandle target (it->node). They
happen to be the same in the case that triggered this improvement. See
commit 72cb4c48a46a ("arm64: dts: qcom: ipq6018: Fix gpio-ranges
property").

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/f6a68e0088a552ea9dfd4d8e3b5b586d92594738.1640881913.git.baruch@tkos.co.il
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/of/base.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 60cb9b44d4ecc..a44a0e7ba2510 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1328,9 +1328,14 @@ int of_phandle_iterator_next(struct of_phandle_iterator *it)
 		 * property data length
 		 */
 		if (it->cur + count > it->list_end) {
-			pr_err("%pOF: %s = %d found %td\n",
-			       it->parent, it->cells_name,
-			       count, it->list_end - it->cur);
+			if (it->cells_name)
+				pr_err("%pOF: %s = %d found %td\n",
+					it->parent, it->cells_name,
+					count, it->list_end - it->cur);
+			else
+				pr_err("%pOF: phandle %s needs %d, found %td\n",
+					it->parent, of_node_full_name(it->node),
+					count, it->list_end - it->cur);
 			goto err;
 		}
 	}
-- 
GitLab


From f62bf6ee4fa3198385e0658a9f070f98335a8408 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 18 Jun 2018 23:55:40 +0100
Subject: [PATCH 3351/4878] firmware: Update Kconfig help text for Google
 firmware

commit d185a3466f0cd5af8f1c5c782c53bc0e6f2e7136 upstream.

The help text for GOOGLE_FIRMWARE states that it should only be
enabled when building a kernel for Google's own servers.  However,
many of the drivers dependent on it are also useful on Chromebooks or
on any platform using coreboot.

Update the help text to reflect this double duty.

Fixes: d384d6f43d1e ("firmware: google memconsole: Add coreboot support")
Reviewed-by: Julius Werner <jwerner@chromium.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Link: https://lore.kernel.org/r/20180618225540.GD14131@decadent.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/google/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/google/Kconfig b/drivers/firmware/google/Kconfig
index 97968aece54f8..931544c9f63d4 100644
--- a/drivers/firmware/google/Kconfig
+++ b/drivers/firmware/google/Kconfig
@@ -3,9 +3,9 @@ menuconfig GOOGLE_FIRMWARE
 	bool "Google Firmware Drivers"
 	default n
 	help
-	  These firmware drivers are used by Google's servers.  They are
-	  only useful if you are working directly on one of their
-	  proprietary servers.  If in doubt, say "N".
+	  These firmware drivers are used by Google servers,
+	  Chromebooks and other devices using coreboot firmware.
+	  If in doubt, say "N".
 
 if GOOGLE_FIRMWARE
 
-- 
GitLab


From 0baa3729d2eb20ae159a863e473fcfca6390aba9 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 23 Apr 2021 11:26:56 +0200
Subject: [PATCH 3352/4878] can: mcp251xfd: mcp251xfd_tef_obj_read(): fix typo
 in error message

commit 99e7cc3b3f85d9a583ab83f386315c59443509ae upstream.

This patch fixes a typo in the error message in
mcp251xfd_tef_obj_read(), if trying to read too many objects.

Link: https://lore.kernel.org/all/20220105154300.1258636-3-mkl@pengutronix.de
Fixes: 55e5b97f003e ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
index e0b322ab03628..abe00a085f6fc 100644
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
@@ -1288,7 +1288,7 @@ mcp251xfd_tef_obj_read(const struct mcp251xfd_priv *priv,
 	     len > tx_ring->obj_num ||
 	     offset + len > tx_ring->obj_num)) {
 		netdev_err(priv->ndev,
-			   "Trying to read to many TEF objects (max=%d, offset=%d, len=%d).\n",
+			   "Trying to read too many TEF objects (max=%d, offset=%d, len=%d).\n",
 			   tx_ring->obj_num, offset, len);
 		return -ERANGE;
 	}
-- 
GitLab


From 81ac08a800b010d40c4bc8112089473c1b950cbd Mon Sep 17 00:00:00 2001
From: Suresh Udipi <sudipi@jp.adit-jv.com>
Date: Fri, 13 Aug 2021 17:07:56 +0200
Subject: [PATCH 3353/4878] media: rcar-csi2: Optimize the selection PHTW
 register
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 549cc89cd09a85aaa16dc07ef3db811d5cf9bcb1 upstream.

PHTW register is selected based on default bit rate from Table[1].
for the bit rates less than or equal to 250. Currently first
value of default bit rate which is greater than or equal to
the caculated mbps is selected. This selection can be further
improved by selecting the default bit rate which is nearest to
the calculated value.

[1] specs r19uh0105ej0200-r-car-3rd-generation.pdf [Table 25.12]

Fixes: 769afd212b16 ("media: rcar-csi2: add Renesas R-Car MIPI CSI-2 receiver driver")
Signed-off-by: Suresh Udipi <sudipi@jp.adit-jv.com>
Signed-off-by: Michael Rodin <mrodin@de.adit-jv.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/rcar-vin/rcar-csi2.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index 6fb8efcb40444..5e8e48a721a04 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -976,10 +976,17 @@ static int rcsi2_phtw_write_mbps(struct rcar_csi2 *priv, unsigned int mbps,
 				 const struct rcsi2_mbps_reg *values, u16 code)
 {
 	const struct rcsi2_mbps_reg *value;
+	const struct rcsi2_mbps_reg *prev_value = NULL;
 
-	for (value = values; value->mbps; value++)
+	for (value = values; value->mbps; value++) {
 		if (value->mbps >= mbps)
 			break;
+		prev_value = value;
+	}
+
+	if (prev_value &&
+	    ((mbps - prev_value->mbps) <= (value->mbps - mbps)))
+		value = prev_value;
 
 	if (!value->mbps) {
 		dev_err(priv->dev, "Unsupported PHY speed (%u Mbps)", mbps);
-- 
GitLab


From 55b10b88ac8654fc2f31518aa349a2e643b37f18 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Thu, 19 Aug 2021 15:59:30 +0200
Subject: [PATCH 3354/4878] drm/vc4: hdmi: Make sure the device is powered with
 CEC

commit 20b0dfa86bef0e80b41b0e5ac38b92f23b6f27f9 upstream.

Similarly to what we encountered with the detect hook with DRM, nothing
actually prevents any of the CEC callback from being run while the HDMI
output is disabled.

However, this is an issue since any register access to the controller
when it's powered down will result in a silent hang.

Let's make sure we run the runtime_pm hooks when the CEC adapter is
opened and closed by the userspace to avoid that issue.

Fixes: 15b4511a4af6 ("drm/vc4: add HDMI CEC support")
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210819135931.895976-6-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 5d5c4e9a86218..9392de2679a1d 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1399,8 +1399,14 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
 	struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
 	/* clock period in microseconds */
 	const u32 usecs = 1000000 / CEC_CLOCK_FREQ;
-	u32 val = HDMI_READ(HDMI_CEC_CNTRL_5);
+	u32 val;
+	int ret;
+
+	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
+	if (ret)
+		return ret;
 
+	val = HDMI_READ(HDMI_CEC_CNTRL_5);
 	val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
 		 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
 		 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
@@ -1525,6 +1531,8 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi)
 	if (ret < 0)
 		goto err_delete_cec_adap;
 
+	pm_runtime_put(&vc4_hdmi->pdev->dev);
+
 	return 0;
 
 err_delete_cec_adap:
-- 
GitLab


From f6736bd81db48abd9455e007f1f3ba7ec593fd48 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 7 Nov 2021 18:19:23 +0000
Subject: [PATCH 3355/4878] media: correct MEDIA_TEST_SUPPORT help text

commit 09f4d1513267d0ab712f5d29e7bd136535748709 upstream.

Fix grammar/wording in the help text for MEDIA_TEST_SUPPORT.

Fixes: 4b32216adb01 ("media: split test drivers from platform directory")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index a6d073f2e036a..d157af63be417 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -142,10 +142,10 @@ config MEDIA_TEST_SUPPORT
 	prompt "Test drivers" if MEDIA_SUPPORT_FILTER
 	default y if !MEDIA_SUPPORT_FILTER
 	help
-	  Those drivers should not be used on production Kernels, but
-	  can be useful on debug ones. It enables several dummy drivers
-	  that simulate a real hardware. Very useful to test userspace
-	  applications and to validate if the subsystem core is doesn't
+	  These drivers should not be used on production kernels, but
+	  can be useful on debug ones. This option enables several dummy drivers
+	  that simulate real hardware. Very useful to test userspace
+	  applications and to validate if the subsystem core doesn't
 	  have regressions.
 
 	  Say Y if you want to use some virtual test driver.
-- 
GitLab


From d1e85fcd73b5c94dc5032a63ecb3df4cbceda82d Mon Sep 17 00:00:00 2001
From: Daniel Thompson <daniel.thompson@linaro.org>
Date: Thu, 18 Nov 2021 10:09:52 +0000
Subject: [PATCH 3356/4878] Documentation: dmaengine: Correctly describe
 dmatest with channel unset

commit c61d7b2ef141abf81140756b45860a2306f395a2 upstream.

Currently the documentation states that channels must be configured before
running the dmatest. This has not been true since commit 6b41030fdc79
("dmaengine: dmatest: Restore default for channel"). Fix accordingly.

Fixes: 6b41030fdc79 ("dmaengine: dmatest: Restore default for channel")
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20211118100952.27268-3-daniel.thompson@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/driver-api/dmaengine/dmatest.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/driver-api/dmaengine/dmatest.rst b/Documentation/driver-api/dmaengine/dmatest.rst
index ee268d445d38b..d2e1d8b58e7dc 100644
--- a/Documentation/driver-api/dmaengine/dmatest.rst
+++ b/Documentation/driver-api/dmaengine/dmatest.rst
@@ -143,13 +143,14 @@ Part 5 - Handling channel allocation
 Allocating Channels
 -------------------
 
-Channels are required to be configured prior to starting the test run.
-Attempting to run the test without configuring the channels will fail.
+Channels do not need to be configured prior to starting a test run. Attempting
+to run the test without configuring the channels will result in testing any
+channels that are available.
 
 Example::
 
     % echo 1 > /sys/module/dmatest/parameters/run
-    dmatest: Could not start test, no channels configured
+    dmatest: No channels configured, continue with any
 
 Channels are registered using the "channel" parameter. Channels can be requested by their
 name, once requested, the channel is registered and a pending thread is added to the test list.
-- 
GitLab


From abecf9d748369d5d1f53ae868f96cae88f9875ef Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Wed, 1 Dec 2021 14:59:31 +0200
Subject: [PATCH 3357/4878] Documentation: ACPI: Fix data node reference
 documentation

commit a11174952205d082f1658fab4314f0caf706e0a8 upstream.

The data node reference documentation was missing a package that must
contain the property values, instead property name and multiple values
being present in a single package. This is not aligned with the _DSD
spec.

Fix it by adding the package for the values.

Also add the missing "reg" properties to two numbered nodes.

Fixes: b10134a3643d ("ACPI: property: Document hierarchical data extension references")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../firmware-guide/acpi/dsd/data-node-references.rst   | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
index 9b17dc77d18c5..da0e46496fc4d 100644
--- a/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
+++ b/Documentation/firmware-guide/acpi/dsd/data-node-references.rst
@@ -5,7 +5,7 @@
 Referencing hierarchical data nodes
 ===================================
 
-:Copyright: |copy| 2018 Intel Corporation
+:Copyright: |copy| 2018, 2021 Intel Corporation
 :Author: Sakari Ailus <sakari.ailus@linux.intel.com>
 
 ACPI in general allows referring to device objects in the tree only.
@@ -52,12 +52,14 @@ the ANOD object which is also the final target node of the reference.
 	    Name (NOD0, Package() {
 		ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 		Package () {
+		    Package () { "reg", 0 },
 		    Package () { "random-property", 3 },
 		}
 	    })
 	    Name (NOD1, Package() {
 		ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
 		Package () {
+		    Package () { "reg", 1 },
 		    Package () { "anothernode", "ANOD" },
 		}
 	    })
@@ -74,7 +76,11 @@ the ANOD object which is also the final target node of the reference.
 	    Name (_DSD, Package () {
 		ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
 		Package () {
-		    Package () { "reference", ^DEV0, "node@1", "anothernode" },
+		    Package () {
+			"reference", Package () {
+			    ^DEV0, "node@1", "anothernode"
+			}
+		    },
 		}
 	    })
 	}
-- 
GitLab


From 5d38cbf66dd7df04f06be86d812c7e5861cd3a69 Mon Sep 17 00:00:00 2001
From: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Date: Thu, 30 Dec 2021 18:19:40 +0100
Subject: [PATCH 3358/4878] Documentation: refer to config RANDOMIZE_BASE for
 kernel address-space randomization

commit 82ca67321f55a8d1da6ac3ed611da3c32818bb37 upstream.

The config RANDOMIZE_SLAB does not exist, the authors probably intended to
refer to the config RANDOMIZE_BASE, which provides kernel address-space
randomization. They probably just confused SLAB with BASE (these two
four-letter words coincidentally share three common letters), as they also
point out the config SLAB_FREELIST_RANDOM as further randomization within
the same sentence.

Fix the reference of the config for kernel address-space randomization to
the config that provides that.

Fixes: 6e88559470f5 ("Documentation: Add section about CPU vulnerabilities for Spectre")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20211230171940.27558-1-lukas.bulwahn@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/hw-vuln/spectre.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index e05e581af5cfe..985181dba0bac 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -468,7 +468,7 @@ Spectre variant 2
    before invoking any firmware code to prevent Spectre variant 2 exploits
    using the firmware.
 
-   Using kernel address space randomization (CONFIG_RANDOMIZE_SLAB=y
+   Using kernel address space randomization (CONFIG_RANDOMIZE_BASE=y
    and CONFIG_SLAB_FREELIST_RANDOM=y in the kernel configuration) makes
    attacks on the kernel generally more difficult.
 
-- 
GitLab


From 55698d11c8dacbfc9750803cf8fa398fb9a12af5 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 18 Jan 2022 19:39:05 -0800
Subject: [PATCH 3359/4878] Documentation: fix firewire.rst ABI file path error

commit b0ac702f3329cdc8a06dcaac73183d4b5a2b942d upstream.

Adjust the path of the ABI files for firewire.rst to prevent a
documentation build error. Prevents this problem:

Sphinx parallel build error:
docutils.utils.SystemMessage: Documentation/driver-api/firewire.rst:22: (SEVERE/4) Problems with "include" directive path:
InputError: [Errno 2] No such file or directory: '../Documentation/driver-api/ABI/stable/firewire-cdev'.

Fixes: 2f4830ef96d2 ("FireWire: add driver-api Introduction section")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/20220119033905.4779-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/driver-api/firewire.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/driver-api/firewire.rst b/Documentation/driver-api/firewire.rst
index 94a2d7f01d999..d3cfa73cbb2b4 100644
--- a/Documentation/driver-api/firewire.rst
+++ b/Documentation/driver-api/firewire.rst
@@ -19,7 +19,7 @@ of kernel interfaces is available via exported symbols in `firewire-core` module
 Firewire char device data structures
 ====================================
 
-.. include:: /ABI/stable/firewire-cdev
+.. include:: ../ABI/stable/firewire-cdev
     :literal:
 
 .. kernel-doc:: include/uapi/linux/firewire-cdev.h
@@ -28,7 +28,7 @@ Firewire char device data structures
 Firewire device probing and sysfs interfaces
 ============================================
 
-.. include:: /ABI/stable/sysfs-bus-firewire
+.. include:: ../ABI/stable/sysfs-bus-firewire
     :literal:
 
 .. kernel-doc:: drivers/firewire/core-device.c
-- 
GitLab


From b30240911da4a19560daa51c1e1d328f9903dde7 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Mon, 1 Nov 2021 15:14:41 -0700
Subject: [PATCH 3360/4878] Bluetooth: hci_sync: Fix not setting adv set
 duration

commit f16a491c65d9eb19398b25aefc10c2d3313d17b3 upstream.

10bbffa3e88e attempted to fix the use of rotation duration as
advertising duration but it didn't change the if condition which still
uses the duration instead of the timeout.

Fixes: 10bbffa3e88e ("Bluetooth: Fix using advertising instance duration as timeout")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bluetooth/hci_request.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 1a94ed2f8a4f8..d965b7c66bd62 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -2118,7 +2118,7 @@ int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance)
 	/* Set duration per instance since controller is responsible for
 	 * scheduling it.
 	 */
-	if (adv_instance && adv_instance->duration) {
+	if (adv_instance && adv_instance->timeout) {
 		u16 duration = adv_instance->timeout * MSEC_PER_SEC;
 
 		/* Time = N * 10 ms */
-- 
GitLab


From 4fe77b7cd27229486b67c83df71019fe89d3951e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Mon, 29 Nov 2021 11:46:00 -0800
Subject: [PATCH 3361/4878] scsi: core: Show SCMD_LAST in text form

commit 3369046e54ca8f82e0cb17740643da2d80d3cfa8 upstream.

The SCSI debugfs code supports showing information about pending commands,
including translating SCSI command flags from numeric into text format.
Also convert the SCMD_LAST flag from numeric into text form.

Link: https://lore.kernel.org/r/20211129194609.3466071-4-bvanassche@acm.org
Fixes: 8930a6c20791 ("scsi: core: add support for request batching")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/scsi_debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/scsi_debugfs.c b/drivers/scsi/scsi_debugfs.c
index c19ea7ab54cbd..d9a18124cfc9d 100644
--- a/drivers/scsi/scsi_debugfs.c
+++ b/drivers/scsi/scsi_debugfs.c
@@ -10,6 +10,7 @@ static const char *const scsi_cmd_flags[] = {
 	SCSI_CMD_FLAG_NAME(TAGGED),
 	SCSI_CMD_FLAG_NAME(UNCHECKED_ISA_DMA),
 	SCSI_CMD_FLAG_NAME(INITIALIZED),
+	SCSI_CMD_FLAG_NAME(LAST),
 };
 #undef SCSI_CMD_FLAG_NAME
 
-- 
GitLab


From 57cd8597c3ef8ba8d00aa9f39f506f45d949d29b Mon Sep 17 00:00:00 2001
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Tue, 14 Dec 2021 13:42:43 +0900
Subject: [PATCH 3362/4878] dmaengine: uniphier-xdmac: Fix type of address
 variables

commit 105a8c525675bb7d4d64871f9b2edf39460de881 upstream.

The variables src_addr and dst_addr handle DMA addresses, so these should
be declared as dma_addr_t.

Fixes: 667b9251440b ("dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1639456963-10232-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/uniphier-xdmac.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/uniphier-xdmac.c b/drivers/dma/uniphier-xdmac.c
index d6b8a202474f4..290836b7e1be2 100644
--- a/drivers/dma/uniphier-xdmac.c
+++ b/drivers/dma/uniphier-xdmac.c
@@ -131,8 +131,9 @@ uniphier_xdmac_next_desc(struct uniphier_xdmac_chan *xc)
 static void uniphier_xdmac_chan_start(struct uniphier_xdmac_chan *xc,
 				      struct uniphier_xdmac_desc *xd)
 {
-	u32 src_mode, src_addr, src_width;
-	u32 dst_mode, dst_addr, dst_width;
+	u32 src_mode, src_width;
+	u32 dst_mode, dst_width;
+	dma_addr_t src_addr, dst_addr;
 	u32 val, its, tnum;
 	enum dma_slave_buswidth buswidth;
 
-- 
GitLab


From 885860717c29decb32bc8d2074bd7be066eaab87 Mon Sep 17 00:00:00 2001
From: Yixing Liu <liuyixing1@huawei.com>
Date: Mon, 6 Dec 2021 21:36:52 +0800
Subject: [PATCH 3363/4878] RDMA/hns: Modify the mapping attribute of doorbell
 to device

commit 39d5534b1302189c809e90641ffae8cbdc42a8fc upstream.

It is more general for ARM device drivers to use the device attribute to
map PCI BAR spaces.

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Link: https://lore.kernel.org/r/20211206133652.27476-1-liangwenpeng@huawei.com
Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hns/hns_roce_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index c0249e4874a96..1e8b3e4ef1b17 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -359,7 +359,7 @@ static int hns_roce_mmap(struct ib_ucontext *context,
 		return rdma_user_mmap_io(context, vma,
 					 to_hr_ucontext(context)->uar.pfn,
 					 PAGE_SIZE,
-					 pgprot_noncached(vma->vm_page_prot),
+					 pgprot_device(vma->vm_page_prot),
 					 NULL);
 
 	/* vm_pgoff: 1 -- TPTR */
-- 
GitLab


From 16ad0aa917c905982a6bdddd5f67a824f153501e Mon Sep 17 00:00:00 2001
From: Chengguang Xu <cgxu519@mykernel.net>
Date: Sat, 18 Dec 2021 19:23:20 +0800
Subject: [PATCH 3364/4878] RDMA/rxe: Fix a typo in opcode name

commit 8d1cfb884e881efd69a3be4ef10772c71cb22216 upstream.

There is a redundant ']' in the name of opcode IB_OPCODE_RC_SEND_MIDDLE,
so just fix it.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20211218112320.3558770-1-cgxu519@mykernel.net
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/sw/rxe/rxe_opcode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_opcode.c b/drivers/infiniband/sw/rxe/rxe_opcode.c
index 0cb4b01fd9101..66ffb516bdaf0 100644
--- a/drivers/infiniband/sw/rxe/rxe_opcode.c
+++ b/drivers/infiniband/sw/rxe/rxe_opcode.c
@@ -110,7 +110,7 @@ struct rxe_opcode_info rxe_opcode[RXE_NUM_OPCODE] = {
 		}
 	},
 	[IB_OPCODE_RC_SEND_MIDDLE]		= {
-		.name	= "IB_OPCODE_RC_SEND_MIDDLE]",
+		.name	= "IB_OPCODE_RC_SEND_MIDDLE",
 		.mask	= RXE_PAYLOAD_MASK | RXE_REQ_MASK | RXE_SEND_MASK
 				| RXE_MIDDLE_MASK,
 		.length = RXE_BTH_BYTES,
-- 
GitLab


From 78cf5f63a3a98151ad7fa645103de0fa17c7317c Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@foss.st.com>
Date: Mon, 20 Dec 2021 17:58:27 +0100
Subject: [PATCH 3365/4878] dmaengine: stm32-mdma: fix
 STM32_MDMA_CTBR_TSEL_MASK

commit e7f110889a87307fb0fed408a5dee1707796ca04 upstream.

This patch fixes STM32_MDMA_CTBR_TSEL_MASK, which is [5:0], not [7:0].

Fixes: a4ffb13c8946 ("dmaengine: Add STM32 MDMA driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211220165827.1238097-1-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/stm32-mdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 9d473923712ad..fe36738f2dd7e 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -184,7 +184,7 @@
 #define STM32_MDMA_CTBR(x)		(0x68 + 0x40 * (x))
 #define STM32_MDMA_CTBR_DBUS		BIT(17)
 #define STM32_MDMA_CTBR_SBUS		BIT(16)
-#define STM32_MDMA_CTBR_TSEL_MASK	GENMASK(7, 0)
+#define STM32_MDMA_CTBR_TSEL_MASK	GENMASK(5, 0)
 #define STM32_MDMA_CTBR_TSEL(n)		STM32_MDMA_SET(n, \
 						      STM32_MDMA_CTBR_TSEL_MASK)
 
-- 
GitLab


From 4cb7aba1e0868585289c4ebf9151ec5c7e7606c8 Mon Sep 17 00:00:00 2001
From: Moshe Shemesh <moshe@nvidia.com>
Date: Sun, 5 Dec 2021 11:20:59 +0200
Subject: [PATCH 3366/4878] Revert "net/mlx5: Add retry mechanism to the
 command entry index allocation"

commit 4f6626b0e140867fd6d5a2e9d4ceaef97f10f46a upstream.

This reverts commit 410bd754cd73c4a2ac3856d9a03d7b08f9c906bf.

The reverted commit had added a retry mechanism to the command entry
index allocation. The previous patch ensures that there is a free
command entry index once the command work handler holds the command
semaphore. Thus the retry mechanism is not needed.

Fixes: 410bd754cd73 ("net/mlx5: Add retry mechanism to the command entry index allocation")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 21 +------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 20e3f8cd074a1..6af0dd8471691 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -887,25 +887,6 @@ static bool opcode_allowed(struct mlx5_cmd *cmd, u16 opcode)
 	return cmd->allowed_opcode == opcode;
 }
 
-static int cmd_alloc_index_retry(struct mlx5_cmd *cmd)
-{
-	unsigned long alloc_end = jiffies + msecs_to_jiffies(1000);
-	int idx;
-
-retry:
-	idx = cmd_alloc_index(cmd);
-	if (idx < 0 && time_before(jiffies, alloc_end)) {
-		/* Index allocation can fail on heavy load of commands. This is a temporary
-		 * situation as the current command already holds the semaphore, meaning that
-		 * another command completion is being handled and it is expected to release
-		 * the entry index soon.
-		 */
-		cpu_relax();
-		goto retry;
-	}
-	return idx;
-}
-
 bool mlx5_cmd_is_down(struct mlx5_core_dev *dev)
 {
 	return pci_channel_offline(dev->pdev) ||
@@ -930,7 +911,7 @@ static void cmd_work_handler(struct work_struct *work)
 	sem = ent->page_queue ? &cmd->pages_sem : &cmd->sem;
 	down(sem);
 	if (!ent->page_queue) {
-		alloc_ret = cmd_alloc_index_retry(cmd);
+		alloc_ret = cmd_alloc_index(cmd);
 		if (alloc_ret < 0) {
 			mlx5_core_err_rl(dev, "failed to allocate command entry\n");
 			if (ent->callback) {
-- 
GitLab


From 19aaef65194854e8e880084f52645fb77b54188d Mon Sep 17 00:00:00 2001
From: Anders Roxell <anders.roxell@linaro.org>
Date: Tue, 7 Dec 2021 12:02:28 +0100
Subject: [PATCH 3367/4878] powerpc/cell: Fix clang -Wimplicit-fallthrough
 warning

commit e89257e28e844f5d1d39081bb901d9f1183a7705 upstream.

Clang warns:

arch/powerpc/platforms/cell/pervasive.c:81:2: error: unannotated fall-through between switch labels
        case SRR1_WAKEEE:
        ^
arch/powerpc/platforms/cell/pervasive.c:81:2: note: insert 'break;' to avoid fall-through
        case SRR1_WAKEEE:
        ^
        break;
1 error generated.

Clang is more pedantic than GCC, which does not warn when failing
through to a case that is just break or return. Clang's version is more
in line with the kernel's own stance in deprecated.rst. Add athe missing
break to silence the warning.

Fixes: 6e83985b0f6e ("powerpc/cbe: Do not process external or decremeter interrupts from sreset")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211207110228.698956-1-anders.roxell@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/platforms/cell/pervasive.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c
index 9068edef71f78..59999902e4a6a 100644
--- a/arch/powerpc/platforms/cell/pervasive.c
+++ b/arch/powerpc/platforms/cell/pervasive.c
@@ -77,6 +77,7 @@ static int cbe_system_reset_exception(struct pt_regs *regs)
 	switch (regs->msr & SRR1_WAKEMASK) {
 	case SRR1_WAKEDEC:
 		set_dec(1);
+		break;
 	case SRR1_WAKEEE:
 		/*
 		 * Handle these when interrupts get re-enabled and we take
-- 
GitLab


From 5e59f885353e3b65dbb26c3bbb08cd8e4fa59043 Mon Sep 17 00:00:00 2001
From: Tobias Waldekranz <tobias@waldekranz.com>
Date: Tue, 18 Jan 2022 22:50:52 +0100
Subject: [PATCH 3368/4878] powerpc/fsl/dts: Enable WA for erratum A-009885 on
 fman3l MDIO buses

commit 0d375d610fa96524e2ee2b46830a46a7bfa92a9f upstream.

This block is used in (at least) T1024 and T1040, including their
variants like T1023 etc.

Fixes: d55ad2967d89 ("powerpc/mpc85xx: Create dts components for the FSL QorIQ DPAA FMan")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
index c90702b04a530..48e5cd61599c6 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3l-0.dtsi
@@ -79,6 +79,7 @@ fman0: fman@400000 {
 		#size-cells = <0>;
 		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
 		reg = <0xfc000 0x1000>;
+		fsl,erratum-a009885;
 	};
 
 	xmdio0: mdio@fd000 {
@@ -86,6 +87,7 @@ fman0: fman@400000 {
 		#size-cells = <0>;
 		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
 		reg = <0xfd000 0x1000>;
+		fsl,erratum-a009885;
 	};
 };
 
-- 
GitLab


From 2bcab471a26fce0410c3d30d28af642db373ef8c Mon Sep 17 00:00:00 2001
From: Ye Bin <yebin10@huawei.com>
Date: Mon, 29 Nov 2021 09:26:59 +0800
Subject: [PATCH 3369/4878] block: Fix fsync always failed if once failed

commit 8a7518931baa8ea023700987f3db31cb0a80610b upstream.

We do test with inject error fault base on v4.19, after test some time we found
sync /dev/sda always failed.
[root@localhost] sync /dev/sda
sync: error syncing '/dev/sda': Input/output error

scsi log as follows:
[19069.812296] sd 0:0:0:0: [sda] tag#64 Send: scmd 0x00000000d03a0b6b
[19069.812302] sd 0:0:0:0: [sda] tag#64 CDB: Synchronize Cache(10) 35 00 00 00 00 00 00 00 00 00
[19069.812533] sd 0:0:0:0: [sda] tag#64 Done: SUCCESS Result: hostbyte=DID_OK driverbyte=DRIVER_OK
[19069.812536] sd 0:0:0:0: [sda] tag#64 CDB: Synchronize Cache(10) 35 00 00 00 00 00 00 00 00 00
[19069.812539] sd 0:0:0:0: [sda] tag#64 scsi host busy 1 failed 0
[19069.812542] sd 0:0:0:0: Notifying upper driver of completion (result 0)
[19069.812546] sd 0:0:0:0: [sda] tag#64 sd_done: completed 0 of 0 bytes
[19069.812549] sd 0:0:0:0: [sda] tag#64 0 sectors total, 0 bytes done.
[19069.812564] print_req_error: I/O error, dev sda, sector 0

ftrace log as follows:
 rep-306069 [007] .... 19654.923315: block_bio_queue: 8,0 FWS 0 + 0 [rep]
 rep-306069 [007] .... 19654.923333: block_getrq: 8,0 FWS 0 + 0 [rep]
 kworker/7:1H-250   [007] .... 19654.923352: block_rq_issue: 8,0 FF 0 () 0 + 0 [kworker/7:1H]
 <idle>-0     [007] ..s. 19654.923562: block_rq_complete: 8,0 FF () 18446744073709551615 + 0 [0]
 <idle>-0     [007] d.s. 19654.923576: block_rq_complete: 8,0 WS () 0 + 0 [-5]

As 8d6996630c03 introduce 'fq->rq_status', this data only update when 'flush_rq'
reference count isn't zero. If flush request once failed and record error code
in 'fq->rq_status'. If there is no chance to update 'fq->rq_status',then do fsync
will always failed.
To address this issue reset 'fq->rq_status' after return error code to upper layer.

Fixes: 8d6996630c03("block: fix null pointer dereference in blk_mq_rq_timed_out()")
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20211129012659.1553733-1-yebin10@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/blk-flush.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/block/blk-flush.c b/block/blk-flush.c
index 70f1d02135ed6..33b487b5cbf78 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -236,8 +236,10 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
 	 * avoiding use-after-free.
 	 */
 	WRITE_ONCE(flush_rq->state, MQ_RQ_IDLE);
-	if (fq->rq_status != BLK_STS_OK)
+	if (fq->rq_status != BLK_STS_OK) {
 		error = fq->rq_status;
+		fq->rq_status = BLK_STS_OK;
+	}
 
 	if (!q->elevator) {
 		flush_rq->tag = BLK_MQ_NO_TAG;
-- 
GitLab


From 38ee417f59c893e770a6118072f5d52fe9082901 Mon Sep 17 00:00:00 2001
From: Quentin Monnet <quentin@isovalent.com>
Date: Wed, 10 Nov 2021 11:46:28 +0000
Subject: [PATCH 3370/4878] bpftool: Remove inclusion of utilities.mak from
 Makefiles

commit 48f5aef4c458c19ab337eed8c95a6486cc014aa3 upstream.

Bpftool's Makefile, and the Makefile for its documentation, both include
scripts/utilities.mak, but they use none of the items defined in this
file. Remove the includes.

Fixes: 71bb428fe2c1 ("tools: bpf: add bpftool")
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211110114632.24537-3-quentin@isovalent.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/bpf/bpftool/Documentation/Makefile | 1 -
 tools/bpf/bpftool/Makefile               | 1 -
 2 files changed, 2 deletions(-)

diff --git a/tools/bpf/bpftool/Documentation/Makefile b/tools/bpf/bpftool/Documentation/Makefile
index f33cb02de95cf..3601b1d1974ca 100644
--- a/tools/bpf/bpftool/Documentation/Makefile
+++ b/tools/bpf/bpftool/Documentation/Makefile
@@ -1,6 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 include ../../../scripts/Makefile.include
-include ../../../scripts/utilities.mak
 
 INSTALL ?= install
 RM ?= rm -f
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index f60e6ad3a1dff..1896ef69b4492 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -1,6 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 include ../../scripts/Makefile.include
-include ../../scripts/utilities.mak
 
 ifeq ($(srctree),)
 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
-- 
GitLab


From 58fa3e900255d61684ea5dfce0302b4b59d39c24 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
Date: Fri, 7 Jan 2022 23:11:13 +0100
Subject: [PATCH 3371/4878] xdp: check prog type before updating BPF link
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 382778edc8262b7535f00523e9eb22edba1b9816 upstream.

The bpf_xdp_link_update() function didn't check the program type before
updating the program, which made it possible to install any program type as
an XDP program, which is obviously not good. Syzbot managed to trigger this
by swapping in an LWT program on the XDP hook which would crash in a helper
call.

Fix this by adding a check and bailing out if the types don't match.

Fixes: 026a4c28e1db ("bpf, xdp: Implement LINK_UPDATE for BPF XDP link")
Reported-by: syzbot+983941aa85af6ded1fd9@syzkaller.appspotmail.com
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20220107221115.326171-1-toke@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/dev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 60cf3cd0c282f..0bab2aca07fd3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -9339,6 +9339,12 @@ static int bpf_xdp_link_update(struct bpf_link *link, struct bpf_prog *new_prog,
 		goto out_unlock;
 	}
 	old_prog = link->prog;
+	if (old_prog->type != new_prog->type ||
+	    old_prog->expected_attach_type != new_prog->expected_attach_type) {
+		err = -EINVAL;
+		goto out_unlock;
+	}
+
 	if (old_prog == new_prog) {
 		/* no-op, don't disturb drivers */
 		bpf_prog_put(new_prog);
-- 
GitLab


From 10e99ae9b5da7e6a5304db3a926f6a460ee850d2 Mon Sep 17 00:00:00 2001
From: German Gomez <german.gomez@arm.com>
Date: Tue, 18 Jan 2022 14:40:54 +0000
Subject: [PATCH 3372/4878] perf evsel: Override attr->sample_period for
 non-libpfm4 events
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 3606c0e1a1050d397ad759a62607e419fd8b0ccb upstream.

A previous patch preventing "attr->sample_period" values from being
overridden in pfm events changed a related behaviour in arm-spe.

Before said patch:

  perf record -c 10000 -e arm_spe_0// -- sleep 1

Would yield an SPE event with period=10000. After the patch, the period
in "-c 10000" was being ignored because the arm-spe code initializes
sample_period to a non-zero value.

This patch restores the previous behaviour for non-libpfm4 events.

Fixes: ae5dcc8abe31 (“perf record: Prevent override of attr->sample_period for libpfm4 events”)
Reported-by: Chase Conklin <chase.conklin@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20220118144054.2541-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/evsel.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 1cad6051d8b08..1a1cbd16d76d4 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1014,6 +1014,17 @@ struct evsel_config_term *__evsel__get_config_term(struct evsel *evsel, enum evs
 	return found_term;
 }
 
+static void evsel__set_default_freq_period(struct record_opts *opts,
+					   struct perf_event_attr *attr)
+{
+	if (opts->freq) {
+		attr->freq = 1;
+		attr->sample_freq = opts->freq;
+	} else {
+		attr->sample_period = opts->default_interval;
+	}
+}
+
 /*
  * The enable_on_exec/disabled value strategy:
  *
@@ -1080,14 +1091,12 @@ void evsel__config(struct evsel *evsel, struct record_opts *opts,
 	 * We default some events to have a default interval. But keep
 	 * it a weak assumption overridable by the user.
 	 */
-	if (!attr->sample_period) {
-		if (opts->freq) {
-			attr->freq		= 1;
-			attr->sample_freq	= opts->freq;
-		} else {
-			attr->sample_period = opts->default_interval;
-		}
-	}
+	if ((evsel->is_libpfm_event && !attr->sample_period) ||
+	    (!evsel->is_libpfm_event && (!attr->sample_period ||
+					 opts->user_freq != UINT_MAX ||
+					 opts->user_interval != ULLONG_MAX)))
+		evsel__set_default_freq_period(opts, attr);
+
 	/*
 	 * If attr->freq was set (here or earlier), ask for period
 	 * to be sampled.
-- 
GitLab


From 86f0587f74320412e19db0bc341ef418b2d1d114 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 16 Jan 2022 01:02:20 -0800
Subject: [PATCH 3373/4878] ipv4: update fib_info_cnt under spinlock protection

commit 0a6e6b3c7db6c34e3d149f09cd714972f8753e3f upstream.

In the past, free_fib_info() was supposed to be called
under RTNL protection.

This eventually was no longer the case.

Instead of enforcing RTNL it seems we simply can
move fib_info_cnt changes to occur when fib_info_lock
is held.

v2: David Laight suggested to update fib_info_cnt
only when an entry is added/deleted to/from the hash table,
as fib_info_cnt is used to make sure hash table size
is optimal.

BUG: KCSAN: data-race in fib_create_info / free_fib_info

write to 0xffffffff86e243a0 of 4 bytes by task 26429 on cpu 0:
 fib_create_info+0xe78/0x3440 net/ipv4/fib_semantics.c:1428
 fib_table_insert+0x148/0x10c0 net/ipv4/fib_trie.c:1224
 fib_magic+0x195/0x1e0 net/ipv4/fib_frontend.c:1087
 fib_add_ifaddr+0xd0/0x2e0 net/ipv4/fib_frontend.c:1109
 fib_netdev_event+0x178/0x510 net/ipv4/fib_frontend.c:1466
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0x53/0xb0 kernel/notifier.c:391
 __dev_notify_flags+0x1d3/0x3b0
 dev_change_flags+0xa2/0xc0 net/core/dev.c:8872
 do_setlink+0x810/0x2410 net/core/rtnetlink.c:2719
 rtnl_group_changelink net/core/rtnetlink.c:3242 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3396 [inline]
 rtnl_newlink+0xb10/0x13b0 net/core/rtnetlink.c:3506
 rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5571
 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2496
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5589
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x5fc/0x6c0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x726/0x840 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmsg+0x195/0x230 net/socket.c:2492
 __do_sys_sendmsg net/socket.c:2501 [inline]
 __se_sys_sendmsg net/socket.c:2499 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2499
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffffff86e243a0 of 4 bytes by task 31505 on cpu 1:
 free_fib_info+0x35/0x80 net/ipv4/fib_semantics.c:252
 fib_info_put include/net/ip_fib.h:575 [inline]
 nsim_fib4_rt_destroy drivers/net/netdevsim/fib.c:294 [inline]
 nsim_fib4_rt_replace drivers/net/netdevsim/fib.c:403 [inline]
 nsim_fib4_rt_insert drivers/net/netdevsim/fib.c:431 [inline]
 nsim_fib4_event drivers/net/netdevsim/fib.c:461 [inline]
 nsim_fib_event drivers/net/netdevsim/fib.c:881 [inline]
 nsim_fib_event_work+0x15ca/0x2cf0 drivers/net/netdevsim/fib.c:1477
 process_one_work+0x3fc/0x980 kernel/workqueue.c:2298
 process_scheduled_works kernel/workqueue.c:2361 [inline]
 worker_thread+0x7df/0xa70 kernel/workqueue.c:2447
 kthread+0x2c7/0x2e0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30

value changed: 0x00000d2d -> 0x00000d2e

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 31505 Comm: kworker/1:21 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_fib_event_work

Fixes: 48bb9eb47b27 ("netdevsim: fib: Add dummy implementation for FIB offload")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Ido Schimmel <idosch@mellanox.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/fib_semantics.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index ab6a8f35d369d..a13265e87da46 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -251,7 +251,6 @@ void free_fib_info(struct fib_info *fi)
 		pr_warn("Freeing alive fib_info %p\n", fi);
 		return;
 	}
-	fib_info_cnt--;
 
 	call_rcu(&fi->rcu, free_fib_info_rcu);
 }
@@ -262,6 +261,10 @@ void fib_release_info(struct fib_info *fi)
 	spin_lock_bh(&fib_info_lock);
 	if (fi && --fi->fib_treeref == 0) {
 		hlist_del(&fi->fib_hash);
+
+		/* Paired with READ_ONCE() in fib_create_info(). */
+		WRITE_ONCE(fib_info_cnt, fib_info_cnt - 1);
+
 		if (fi->fib_prefsrc)
 			hlist_del(&fi->fib_lhash);
 		if (fi->nh) {
@@ -1431,7 +1434,9 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
 #endif
 
 	err = -ENOBUFS;
-	if (fib_info_cnt >= fib_info_hash_size) {
+
+	/* Paired with WRITE_ONCE() in fib_release_info() */
+	if (READ_ONCE(fib_info_cnt) >= fib_info_hash_size) {
 		unsigned int new_size = fib_info_hash_size << 1;
 		struct hlist_head *new_info_hash;
 		struct hlist_head *new_laddrhash;
@@ -1463,7 +1468,6 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
 		return ERR_PTR(err);
 	}
 
-	fib_info_cnt++;
 	fi->fib_net = net;
 	fi->fib_protocol = cfg->fc_protocol;
 	fi->fib_scope = cfg->fc_scope;
@@ -1590,6 +1594,7 @@ link_it:
 	fi->fib_treeref++;
 	refcount_set(&fi->fib_clntref, 1);
 	spin_lock_bh(&fib_info_lock);
+	fib_info_cnt++;
 	hlist_add_head(&fi->fib_hash,
 		       &fib_info_hash[fib_info_hashfn(fi)]);
 	if (fi->fib_prefsrc) {
-- 
GitLab


From 734f4b0f831e6d5fdad819a8832fb562b6cb8291 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 19 Jan 2022 02:04:12 -0800
Subject: [PATCH 3374/4878] ipv4: avoid quadratic behavior in netns dismantle

commit d07418afea8f1d9896aaf9dc5ae47ac4f45b220c upstream.

net/ipv4/fib_semantics.c uses an hash table of 256 slots,
keyed by device ifindexes: fib_info_devhash[DEVINDEX_HASHSIZE]

Problem is that with network namespaces, devices tend
to use the same ifindex.

lo device for instance has a fixed ifindex of one,
for all network namespaces.

This means that hosts with thousands of netns spend
a lot of time looking at some hash buckets with thousands
of elements, notably at netns dismantle.

Simply add a per netns perturbation (net_hash_mix())
to spread elements more uniformely.

Also change fib_devindex_hashfn() to use more entropy.

Fixes: aa79e66eee5d ("net: Make ifindex generation per-net namespace")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/fib_semantics.c | 36 +++++++++++++++++-------------------
 1 file changed, 17 insertions(+), 19 deletions(-)

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index a13265e87da46..838a876c168ca 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -29,6 +29,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/netlink.h>
+#include <linux/hash.h>
 
 #include <net/arp.h>
 #include <net/ip.h>
@@ -321,11 +322,15 @@ static inline int nh_comp(struct fib_info *fi, struct fib_info *ofi)
 
 static inline unsigned int fib_devindex_hashfn(unsigned int val)
 {
-	unsigned int mask = DEVINDEX_HASHSIZE - 1;
+	return hash_32(val, DEVINDEX_HASHBITS);
+}
+
+static struct hlist_head *
+fib_info_devhash_bucket(const struct net_device *dev)
+{
+	u32 val = net_hash_mix(dev_net(dev)) ^ dev->ifindex;
 
-	return (val ^
-		(val >> DEVINDEX_HASHBITS) ^
-		(val >> (DEVINDEX_HASHBITS * 2))) & mask;
+	return &fib_info_devhash[fib_devindex_hashfn(val)];
 }
 
 static unsigned int fib_info_hashfn_1(int init_val, u8 protocol, u8 scope,
@@ -435,12 +440,11 @@ int ip_fib_check_default(__be32 gw, struct net_device *dev)
 {
 	struct hlist_head *head;
 	struct fib_nh *nh;
-	unsigned int hash;
 
 	spin_lock(&fib_info_lock);
 
-	hash = fib_devindex_hashfn(dev->ifindex);
-	head = &fib_info_devhash[hash];
+	head = fib_info_devhash_bucket(dev);
+
 	hlist_for_each_entry(nh, head, nh_hash) {
 		if (nh->fib_nh_dev == dev &&
 		    nh->fib_nh_gw4 == gw &&
@@ -1608,12 +1612,10 @@ link_it:
 	} else {
 		change_nexthops(fi) {
 			struct hlist_head *head;
-			unsigned int hash;
 
 			if (!nexthop_nh->fib_nh_dev)
 				continue;
-			hash = fib_devindex_hashfn(nexthop_nh->fib_nh_dev->ifindex);
-			head = &fib_info_devhash[hash];
+			head = fib_info_devhash_bucket(nexthop_nh->fib_nh_dev);
 			hlist_add_head(&nexthop_nh->nh_hash, head);
 		} endfor_nexthops(fi)
 	}
@@ -1963,8 +1965,7 @@ void fib_nhc_update_mtu(struct fib_nh_common *nhc, u32 new, u32 orig)
 
 void fib_sync_mtu(struct net_device *dev, u32 orig_mtu)
 {
-	unsigned int hash = fib_devindex_hashfn(dev->ifindex);
-	struct hlist_head *head = &fib_info_devhash[hash];
+	struct hlist_head *head = fib_info_devhash_bucket(dev);
 	struct fib_nh *nh;
 
 	hlist_for_each_entry(nh, head, nh_hash) {
@@ -1983,12 +1984,11 @@ void fib_sync_mtu(struct net_device *dev, u32 orig_mtu)
  */
 int fib_sync_down_dev(struct net_device *dev, unsigned long event, bool force)
 {
-	int ret = 0;
-	int scope = RT_SCOPE_NOWHERE;
+	struct hlist_head *head = fib_info_devhash_bucket(dev);
 	struct fib_info *prev_fi = NULL;
-	unsigned int hash = fib_devindex_hashfn(dev->ifindex);
-	struct hlist_head *head = &fib_info_devhash[hash];
+	int scope = RT_SCOPE_NOWHERE;
 	struct fib_nh *nh;
+	int ret = 0;
 
 	if (force)
 		scope = -1;
@@ -2133,7 +2133,6 @@ out:
 int fib_sync_up(struct net_device *dev, unsigned char nh_flags)
 {
 	struct fib_info *prev_fi;
-	unsigned int hash;
 	struct hlist_head *head;
 	struct fib_nh *nh;
 	int ret;
@@ -2149,8 +2148,7 @@ int fib_sync_up(struct net_device *dev, unsigned char nh_flags)
 	}
 
 	prev_fi = NULL;
-	hash = fib_devindex_hashfn(dev->ifindex);
-	head = &fib_info_devhash[hash];
+	head = fib_info_devhash_bucket(dev);
 	ret = 0;
 
 	hlist_for_each_entry(nh, head, nh_hash) {
-- 
GitLab


From 38c798384b903e0c38f7978c1fbf942e36213b8d Mon Sep 17 00:00:00 2001
From: Tobias Waldekranz <tobias@waldekranz.com>
Date: Tue, 18 Jan 2022 22:50:50 +0100
Subject: [PATCH 3375/4878] net/fsl: xgmac_mdio: Add workaround for erratum
 A-009885

commit 6198c722019774d38018457a8bfb9ba3ed8c931e upstream.

Once an MDIO read transaction is initiated, we must read back the data
register within 16 MDC cycles after the transaction completes. Outside
of this window, reads may return corrupt data.

Therefore, disable local interrupts in the critical section, to
maximize the probability that we can satisfy this requirement.

Fixes: d55ad2967d89 ("powerpc/mpc85xx: Create dts components for the FSL QorIQ DPAA FMan")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/freescale/xgmac_mdio.c | 25 ++++++++++++++++-----
 1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index bfa2826c55454..252a06a13a478 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -49,6 +49,7 @@ struct tgec_mdio_controller {
 struct mdio_fsl_priv {
 	struct	tgec_mdio_controller __iomem *mdio_base;
 	bool	is_little_endian;
+	bool	has_a009885;
 	bool	has_a011043;
 };
 
@@ -184,10 +185,10 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
 {
 	struct mdio_fsl_priv *priv = (struct mdio_fsl_priv *)bus->priv;
 	struct tgec_mdio_controller __iomem *regs = priv->mdio_base;
+	unsigned long flags;
 	uint16_t dev_addr;
 	uint32_t mdio_stat;
 	uint32_t mdio_ctl;
-	uint16_t value;
 	int ret;
 	bool endian = priv->is_little_endian;
 
@@ -219,12 +220,18 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
 			return ret;
 	}
 
+	if (priv->has_a009885)
+		/* Once the operation completes, i.e. MDIO_STAT_BSY clears, we
+		 * must read back the data register within 16 MDC cycles.
+		 */
+		local_irq_save(flags);
+
 	/* Initiate the read */
 	xgmac_write32(mdio_ctl | MDIO_CTL_READ, &regs->mdio_ctl, endian);
 
 	ret = xgmac_wait_until_done(&bus->dev, regs, endian);
 	if (ret)
-		return ret;
+		goto irq_restore;
 
 	/* Return all Fs if nothing was there */
 	if ((xgmac_read32(&regs->mdio_stat, endian) & MDIO_STAT_RD_ER) &&
@@ -232,13 +239,17 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
 		dev_dbg(&bus->dev,
 			"Error while reading PHY%d reg at %d.%hhu\n",
 			phy_id, dev_addr, regnum);
-		return 0xffff;
+		ret = 0xffff;
+	} else {
+		ret = xgmac_read32(&regs->mdio_data, endian) & 0xffff;
+		dev_dbg(&bus->dev, "read %04x\n", ret);
 	}
 
-	value = xgmac_read32(&regs->mdio_data, endian) & 0xffff;
-	dev_dbg(&bus->dev, "read %04x\n", value);
+irq_restore:
+	if (priv->has_a009885)
+		local_irq_restore(flags);
 
-	return value;
+	return ret;
 }
 
 static int xgmac_mdio_probe(struct platform_device *pdev)
@@ -282,6 +293,8 @@ static int xgmac_mdio_probe(struct platform_device *pdev)
 	priv->is_little_endian = device_property_read_bool(&pdev->dev,
 							   "little-endian");
 
+	priv->has_a009885 = device_property_read_bool(&pdev->dev,
+						      "fsl,erratum-a009885");
 	priv->has_a011043 = device_property_read_bool(&pdev->dev,
 						      "fsl,erratum-a011043");
 
-- 
GitLab


From d806eb5f4e231c7c470b7e9d13277d9e69c80a67 Mon Sep 17 00:00:00 2001
From: Tobias Waldekranz <tobias@waldekranz.com>
Date: Tue, 18 Jan 2022 22:50:53 +0100
Subject: [PATCH 3376/4878] net/fsl: xgmac_mdio: Fix incorrect iounmap when
 removing module

commit 3f7c239c7844d2044ed399399d97a5f1c6008e1b upstream.

As reported by sparse: In the remove path, the driver would attempt to
unmap its own priv pointer - instead of the io memory that it mapped
in probe.

Fixes: 9f35a7342cff ("net/fsl: introduce Freescale 10G MDIO driver")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/freescale/xgmac_mdio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index 252a06a13a478..b7984a772e12d 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -320,9 +320,10 @@ err_ioremap:
 static int xgmac_mdio_remove(struct platform_device *pdev)
 {
 	struct mii_bus *bus = platform_get_drvdata(pdev);
+	struct mdio_fsl_priv *priv = bus->priv;
 
 	mdiobus_unregister(bus);
-	iounmap(bus->priv);
+	iounmap(priv->mdio_base);
 	mdiobus_free(bus);
 
 	return 0;
-- 
GitLab


From e1840365ed4f831f51dfd7b3af5e39045f3d62b7 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 20 Jan 2022 12:18:12 +0000
Subject: [PATCH 3377/4878] parisc: pdc_stable: Fix memory leak in
 pdcs_register_pathentries
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit d24846a4246b6e61ecbd036880a4adf61681d241 upstream.

kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()：

   If this function returns an error, kobject_put() must be called to
   properly clean up the memory associated with the object.

Fix memory leak by calling kobject_put().

Fixes: 73f368cf679b ("Kobject: change drivers/parisc/pdc_stable.c to use kobject_init_and_add")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/parisc/pdc_stable.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index e090978518f1a..4760f82def6ec 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -979,8 +979,10 @@ pdcs_register_pathentries(void)
 		entry->kobj.kset = paths_kset;
 		err = kobject_init_and_add(&entry->kobj, &ktype_pdcspath, NULL,
 					   "%s", entry->name);
-		if (err)
+		if (err) {
+			kobject_put(&entry->kobj);
 			return err;
+		}
 
 		/* kobject is now registered */
 		write_lock(&entry->rw_lock);
-- 
GitLab


From 39ad0581176dd62d4dbb0ec528d2d2fb54f11069 Mon Sep 17 00:00:00 2001
From: Hyeong-Jun Kim <hj514.kim@samsung.com>
Date: Fri, 10 Dec 2021 13:30:12 +0900
Subject: [PATCH 3378/4878] f2fs: compress: fix potential deadlock of compress
 file

commit 7377e853967ba45bf409e3b5536624d2cbc99f21 upstream.

There is a potential deadlock between writeback process and a process
performing write_begin() or write_cache_pages() while trying to write
same compress file, but not compressable, as below:

[Process A] - doing checkpoint
[Process B]                     [Process C]
f2fs_write_cache_pages()
- lock_page() [all pages in cluster, 0-31]
- f2fs_write_multi_pages()
 - f2fs_write_raw_pages()
  - f2fs_write_single_data_page()
   - f2fs_do_write_data_page()
     - return -EAGAIN [f2fs_trylock_op() failed]
   - unlock_page(page) [e.g., page 0]
                                - generic_perform_write()
                                 - f2fs_write_begin()
                                  - f2fs_prepare_compress_overwrite()
                                   - prepare_compress_overwrite()
                                    - lock_page() [e.g., page 0]
                                    - lock_page() [e.g., page 1]
   - lock_page(page) [e.g., page 0]

Since there is no compress process, it is no longer necessary to hold
locks on every pages in cluster within f2fs_write_raw_pages().

This patch changes f2fs_write_raw_pages() to release all locks first
and then perform write same as the non-compress file in
f2fs_write_cache_pages().

Fixes: 4c8ff7095bef ("f2fs: support data compression")
Signed-off-by: Hyeong-Jun Kim <hj514.kim@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Youngjin Gil <youngjin.gil@samsung.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/f2fs/compress.c | 50 ++++++++++++++++++++--------------------------
 1 file changed, 22 insertions(+), 28 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 30987ea011f1a..ec542e8c46cc9 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1362,25 +1362,38 @@ static int f2fs_write_raw_pages(struct compress_ctx *cc,
 					enum iostat_type io_type)
 {
 	struct address_space *mapping = cc->inode->i_mapping;
-	int _submitted, compr_blocks, ret;
-	int i = -1, err = 0;
+	int _submitted, compr_blocks, ret, i;
 
 	compr_blocks = f2fs_compressed_blocks(cc);
-	if (compr_blocks < 0) {
-		err = compr_blocks;
-		goto out_err;
+
+	for (i = 0; i < cc->cluster_size; i++) {
+		if (!cc->rpages[i])
+			continue;
+
+		redirty_page_for_writepage(wbc, cc->rpages[i]);
+		unlock_page(cc->rpages[i]);
 	}
 
+	if (compr_blocks < 0)
+		return compr_blocks;
+
 	for (i = 0; i < cc->cluster_size; i++) {
 		if (!cc->rpages[i])
 			continue;
 retry_write:
+		lock_page(cc->rpages[i]);
+
 		if (cc->rpages[i]->mapping != mapping) {
+continue_unlock:
 			unlock_page(cc->rpages[i]);
 			continue;
 		}
 
-		BUG_ON(!PageLocked(cc->rpages[i]));
+		if (!PageDirty(cc->rpages[i]))
+			goto continue_unlock;
+
+		if (!clear_page_dirty_for_io(cc->rpages[i]))
+			goto continue_unlock;
 
 		ret = f2fs_write_single_data_page(cc->rpages[i], &_submitted,
 						NULL, NULL, wbc, io_type,
@@ -1395,26 +1408,15 @@ retry_write:
 				 * avoid deadlock caused by cluster update race
 				 * from foreground operation.
 				 */
-				if (IS_NOQUOTA(cc->inode)) {
-					err = 0;
-					goto out_err;
-				}
+				if (IS_NOQUOTA(cc->inode))
+					return 0;
 				ret = 0;
 				cond_resched();
 				congestion_wait(BLK_RW_ASYNC,
 						DEFAULT_IO_TIMEOUT);
-				lock_page(cc->rpages[i]);
-
-				if (!PageDirty(cc->rpages[i])) {
-					unlock_page(cc->rpages[i]);
-					continue;
-				}
-
-				clear_page_dirty_for_io(cc->rpages[i]);
 				goto retry_write;
 			}
-			err = ret;
-			goto out_err;
+			return ret;
 		}
 
 		*submitted += _submitted;
@@ -1423,14 +1425,6 @@ retry_write:
 	f2fs_balance_fs(F2FS_M_SB(mapping), true);
 
 	return 0;
-out_err:
-	for (++i; i < cc->cluster_size; i++) {
-		if (!cc->rpages[i])
-			continue;
-		redirty_page_for_writepage(wbc, cc->rpages[i]);
-		unlock_page(cc->rpages[i]);
-	}
-	return err;
 }
 
 int f2fs_write_multi_pages(struct compress_ctx *cc,
-- 
GitLab


From a49e402f23096d21362b25d7224206a45288072a Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sat, 11 Dec 2021 21:27:36 +0800
Subject: [PATCH 3379/4878] f2fs: fix to reserve space for IO align feature

commit 300a842937fbcfb5a189cea9ba15374fdb0b5c6b upstream.

https://bugzilla.kernel.org/show_bug.cgi?id=204137

With below script, we will hit panic during new segment allocation:

DISK=bingo.img
MOUNT_DIR=/mnt/f2fs

dd if=/dev/zero of=$DISK bs=1M count=105
mkfs.f2fe -a 1 -o 19 -t 1 -z 1 -f -q $DISK

mount -t f2fs $DISK $MOUNT_DIR -o "noinline_dentry,flush_merge,noextent_cache,mode=lfs,io_bits=7,fsync_mode=strict"

for (( i = 0; i < 4096; i++ )); do
	name=`head /dev/urandom | tr -dc A-Za-z0-9 | head -c 10`
	mkdir $MOUNT_DIR/$name
done

umount $MOUNT_DIR
rm $DISK
---
 fs/f2fs/f2fs.h    | 11 +++++++++++
 fs/f2fs/segment.h |  3 ++-
 fs/f2fs/super.c   | 44 ++++++++++++++++++++++++++++++++++++++++++++
 fs/f2fs/sysfs.c   |  4 +++-
 4 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index bc488a7d01903..6c4bf22a3e83e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -955,6 +955,7 @@ struct f2fs_sm_info {
 	unsigned int segment_count;	/* total # of segments */
 	unsigned int main_segments;	/* # of segments in main area */
 	unsigned int reserved_segments;	/* # of reserved segments */
+	unsigned int additional_reserved_segments;/* reserved segs for IO align feature */
 	unsigned int ovp_segments;	/* # of overprovision segments */
 
 	/* a threshold to reclaim prefree segments */
@@ -1984,6 +1985,11 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
 
 	if (!__allow_reserved_blocks(sbi, inode, true))
 		avail_user_block_count -= F2FS_OPTION(sbi).root_reserved_blocks;
+
+	if (F2FS_IO_ALIGNED(sbi))
+		avail_user_block_count -= sbi->blocks_per_seg *
+				SM_I(sbi)->additional_reserved_segments;
+
 	if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
 		if (avail_user_block_count > sbi->unusable_block_count)
 			avail_user_block_count -= sbi->unusable_block_count;
@@ -2229,6 +2235,11 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
 
 	if (!__allow_reserved_blocks(sbi, inode, false))
 		valid_block_count += F2FS_OPTION(sbi).root_reserved_blocks;
+
+	if (F2FS_IO_ALIGNED(sbi))
+		valid_block_count += sbi->blocks_per_seg *
+				SM_I(sbi)->additional_reserved_segments;
+
 	user_block_count = sbi->user_block_count;
 	if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
 		user_block_count -= sbi->unusable_block_count;
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 1bf33fc27b8f8..beef833a69604 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -539,7 +539,8 @@ static inline unsigned int free_segments(struct f2fs_sb_info *sbi)
 
 static inline unsigned int reserved_segments(struct f2fs_sb_info *sbi)
 {
-	return SM_I(sbi)->reserved_segments;
+	return SM_I(sbi)->reserved_segments +
+			SM_I(sbi)->additional_reserved_segments;
 }
 
 static inline unsigned int free_sections(struct f2fs_sb_info *sbi)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index b7287b722e9e1..af98abb17c272 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -289,6 +289,46 @@ static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
 					   F2FS_OPTION(sbi).s_resgid));
 }
 
+static inline int adjust_reserved_segment(struct f2fs_sb_info *sbi)
+{
+	unsigned int sec_blks = sbi->blocks_per_seg * sbi->segs_per_sec;
+	unsigned int avg_vblocks;
+	unsigned int wanted_reserved_segments;
+	block_t avail_user_block_count;
+
+	if (!F2FS_IO_ALIGNED(sbi))
+		return 0;
+
+	/* average valid block count in section in worst case */
+	avg_vblocks = sec_blks / F2FS_IO_SIZE(sbi);
+
+	/*
+	 * we need enough free space when migrating one section in worst case
+	 */
+	wanted_reserved_segments = (F2FS_IO_SIZE(sbi) / avg_vblocks) *
+						reserved_segments(sbi);
+	wanted_reserved_segments -= reserved_segments(sbi);
+
+	avail_user_block_count = sbi->user_block_count -
+				sbi->current_reserved_blocks -
+				F2FS_OPTION(sbi).root_reserved_blocks;
+
+	if (wanted_reserved_segments * sbi->blocks_per_seg >
+					avail_user_block_count) {
+		f2fs_err(sbi, "IO align feature can't grab additional reserved segment: %u, available segments: %u",
+			wanted_reserved_segments,
+			avail_user_block_count >> sbi->log_blocks_per_seg);
+		return -ENOSPC;
+	}
+
+	SM_I(sbi)->additional_reserved_segments = wanted_reserved_segments;
+
+	f2fs_info(sbi, "IO align feature needs additional reserved segment: %u",
+			 wanted_reserved_segments);
+
+	return 0;
+}
+
 static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
 {
 	if (!F2FS_OPTION(sbi).unusable_cap_perc)
@@ -3736,6 +3776,10 @@ try_onemore:
 		goto free_nm;
 	}
 
+	err = adjust_reserved_segment(sbi);
+	if (err)
+		goto free_nm;
+
 	/* For write statistics */
 	if (sb->s_bdev->bd_part)
 		sbi->sectors_written_start =
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index b8850c81068a0..7ffd4bb398b0c 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -330,7 +330,9 @@ out:
 	if (a->struct_type == RESERVED_BLOCKS) {
 		spin_lock(&sbi->stat_lock);
 		if (t > (unsigned long)(sbi->user_block_count -
-				F2FS_OPTION(sbi).root_reserved_blocks)) {
+				F2FS_OPTION(sbi).root_reserved_blocks -
+				sbi->blocks_per_seg *
+				SM_I(sbi)->additional_reserved_segments)) {
 			spin_unlock(&sbi->stat_lock);
 			return -EINVAL;
 		}
-- 
GitLab


From 38221afa03af6d40d19f69607b21e3ccf9118d3a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 14 Jan 2022 08:43:28 -0800
Subject: [PATCH 3380/4878] af_unix: annote lockless accesses to
 unix_tot_inflight & gc_in_progress

commit 9d6d7f1cb67cdee15f1a0e85aacfb924e0e02435 upstream.

wait_for_unix_gc() reads unix_tot_inflight & gc_in_progress
without synchronization.

Adds READ_ONCE()/WRITE_ONCE() and their associated comments
to better document the intent.

BUG: KCSAN: data-race in unix_inflight / wait_for_unix_gc

write to 0xffffffff86e2b7c0 of 4 bytes by task 9380 on cpu 0:
 unix_inflight+0x1e8/0x260 net/unix/scm.c:63
 unix_attach_fds+0x10c/0x1e0 net/unix/scm.c:121
 unix_scm_to_skb net/unix/af_unix.c:1674 [inline]
 unix_dgram_sendmsg+0x679/0x16b0 net/unix/af_unix.c:1817
 unix_seqpacket_sendmsg+0xcc/0x110 net/unix/af_unix.c:2258
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmmsg+0x267/0x4c0 net/socket.c:2549
 __do_sys_sendmmsg net/socket.c:2578 [inline]
 __se_sys_sendmmsg net/socket.c:2575 [inline]
 __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2575
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffffff86e2b7c0 of 4 bytes by task 9375 on cpu 1:
 wait_for_unix_gc+0x24/0x160 net/unix/garbage.c:196
 unix_dgram_sendmsg+0x8e/0x16b0 net/unix/af_unix.c:1772
 unix_seqpacket_sendmsg+0xcc/0x110 net/unix/af_unix.c:2258
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmmsg+0x267/0x4c0 net/socket.c:2549
 __do_sys_sendmmsg net/socket.c:2578 [inline]
 __se_sys_sendmmsg net/socket.c:2575 [inline]
 __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2575
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00000002 -> 0x00000004

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 9375 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 9915672d4127 ("af_unix: limit unix_tot_inflight")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220114164328.2038499-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/unix/garbage.c | 14 +++++++++++---
 net/unix/scm.c     |  6 ++++--
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 12e2ddaf887f2..d45d5366115a7 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -192,8 +192,11 @@ void wait_for_unix_gc(void)
 {
 	/* If number of inflight sockets is insane,
 	 * force a garbage collect right now.
+	 * Paired with the WRITE_ONCE() in unix_inflight(),
+	 * unix_notinflight() and gc_in_progress().
 	 */
-	if (unix_tot_inflight > UNIX_INFLIGHT_TRIGGER_GC && !gc_in_progress)
+	if (READ_ONCE(unix_tot_inflight) > UNIX_INFLIGHT_TRIGGER_GC &&
+	    !READ_ONCE(gc_in_progress))
 		unix_gc();
 	wait_event(unix_gc_wait, gc_in_progress == false);
 }
@@ -213,7 +216,9 @@ void unix_gc(void)
 	if (gc_in_progress)
 		goto out;
 
-	gc_in_progress = true;
+	/* Paired with READ_ONCE() in wait_for_unix_gc(). */
+	WRITE_ONCE(gc_in_progress, true);
+
 	/* First, select candidates for garbage collection.  Only
 	 * in-flight sockets are considered, and from those only ones
 	 * which don't have any external reference.
@@ -299,7 +304,10 @@ void unix_gc(void)
 
 	/* All candidates should have been detached by now. */
 	BUG_ON(!list_empty(&gc_candidates));
-	gc_in_progress = false;
+
+	/* Paired with READ_ONCE() in wait_for_unix_gc(). */
+	WRITE_ONCE(gc_in_progress, false);
+
 	wake_up(&unix_gc_wait);
 
  out:
diff --git a/net/unix/scm.c b/net/unix/scm.c
index 052ae709ce289..aa27a02478dc1 100644
--- a/net/unix/scm.c
+++ b/net/unix/scm.c
@@ -60,7 +60,8 @@ void unix_inflight(struct user_struct *user, struct file *fp)
 		} else {
 			BUG_ON(list_empty(&u->link));
 		}
-		unix_tot_inflight++;
+		/* Paired with READ_ONCE() in wait_for_unix_gc() */
+		WRITE_ONCE(unix_tot_inflight, unix_tot_inflight + 1);
 	}
 	user->unix_inflight++;
 	spin_unlock(&unix_gc_lock);
@@ -80,7 +81,8 @@ void unix_notinflight(struct user_struct *user, struct file *fp)
 
 		if (atomic_long_dec_and_test(&u->inflight))
 			list_del_init(&u->link);
-		unix_tot_inflight--;
+		/* Paired with READ_ONCE() in wait_for_unix_gc() */
+		WRITE_ONCE(unix_tot_inflight, unix_tot_inflight - 1);
 	}
 	user->unix_inflight--;
 	spin_unlock(&unix_gc_lock);
-- 
GitLab


From fe40f7aef387c90021bc415d258f22dee19f4909 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@kernel.org>
Date: Thu, 9 Dec 2021 17:34:05 -0800
Subject: [PATCH 3381/4878] clk: Emit a stern warning with writable debugfs
 enabled

commit 489a71964f9d74e697a12cd0ace20ed829eb1f93 upstream.

We don't want vendors to be enabling this part of the clk code and
shipping it to customers. Exposing the ability to change clk frequencies
and parents via debugfs is potentially damaging to the system if folks
don't know what they're doing. Emit a strong warning so that the message
is clear: don't enable this outside of development systems.

Fixes: 37215da5553e ("clk: Add support for setting clk_rate via debugfs")
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20211210014237.2130300-1-sboyd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/clk/clk.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 515ef39c4610c..b8a0e3d23698c 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3314,6 +3314,24 @@ static int __init clk_debug_init(void)
 {
 	struct clk_core *core;
 
+#ifdef CLOCK_ALLOW_WRITE_DEBUGFS
+	pr_warn("\n");
+	pr_warn("********************************************************************\n");
+	pr_warn("**     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE           **\n");
+	pr_warn("**                                                                **\n");
+	pr_warn("**  WRITEABLE clk DebugFS SUPPORT HAS BEEN ENABLED IN THIS KERNEL **\n");
+	pr_warn("**                                                                **\n");
+	pr_warn("** This means that this kernel is built to expose clk operations  **\n");
+	pr_warn("** such as parent or rate setting, enabling, disabling, etc.      **\n");
+	pr_warn("** to userspace, which may compromise security on your system.    **\n");
+	pr_warn("**                                                                **\n");
+	pr_warn("** If you see this message and you are not debugging the          **\n");
+	pr_warn("** kernel, report this immediately to your vendor!                **\n");
+	pr_warn("**                                                                **\n");
+	pr_warn("**     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE           **\n");
+	pr_warn("********************************************************************\n");
+#endif
+
 	rootdir = debugfs_create_dir("clk", NULL);
 
 	debugfs_create_file("clk_summary", 0444, rootdir, &all_lists,
-- 
GitLab


From 51b52cf354850e7560758740d072815485932139 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Wed, 12 Jan 2022 14:38:16 -0600
Subject: [PATCH 3382/4878] clk: si5341: Fix clock HW provider cleanup

commit 49a8f2bc8d88702783c7e163ec84374e9a022f71 upstream.

The call to of_clk_add_hw_provider was not undone on remove or on probe
failure, which could cause an oops on a subsequent attempt to retrieve
clocks for the removed device. Switch to the devm version of the
function to avoid this issue.

Fixes: 3044a860fd09 ("clk: Add Si5341/Si5340 driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20220112203816.1784610-1-robert.hancock@calian.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/clk/clk-si5341.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-si5341.c b/drivers/clk/clk-si5341.c
index eb22f4fdbc6b4..772b48ad0cd78 100644
--- a/drivers/clk/clk-si5341.c
+++ b/drivers/clk/clk-si5341.c
@@ -1576,7 +1576,7 @@ static int si5341_probe(struct i2c_client *client,
 			clk_prepare(data->clk[i].hw.clk);
 	}
 
-	err = of_clk_add_hw_provider(client->dev.of_node, of_clk_si5341_get,
+	err = devm_of_clk_add_hw_provider(&client->dev, of_clk_si5341_get,
 			data);
 	if (err) {
 		dev_err(&client->dev, "unable to add clk provider\n");
-- 
GitLab


From a66b9bccf73259345f5e9bbc21531abf38f76f3c Mon Sep 17 00:00:00 2001
From: Wen Gu <guwen@linux.alibaba.com>
Date: Sun, 16 Jan 2022 15:43:42 +0800
Subject: [PATCH 3383/4878] net/smc: Fix hung_task when removing SMC-R devices

commit 56d99e81ecbc997a5f984684d0eeb583992b2072 upstream.

A hung_task is observed when removing SMC-R devices. Suppose that
a link group has two active links(lnk_A, lnk_B) associated with two
different SMC-R devices(dev_A, dev_B). When dev_A is removed, the
link group will be removed from smc_lgr_list and added into
lgr_linkdown_list. lnk_A will be cleared and smcibdev(A)->lnk_cnt
will reach to zero. However, when dev_B is removed then, the link
group can't be found in smc_lgr_list and lnk_B won't be cleared,
making smcibdev->lnk_cnt never reaches zero, which causes a hung_task.

This patch fixes this issue by restoring the implementation of
smc_smcr_terminate_all() to what it was before commit 349d43127dac
("net/smc: fix kernel panic caused by race of smc_sock"). The original
implementation also satisfies the intention that make sure QP destroy
earlier than CQ destroy because we will always wait for smcibdev->lnk_cnt
reaches zero, which guarantees QP has been destroyed.

Fixes: 349d43127dac ("net/smc: fix kernel panic caused by race of smc_sock")
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/smc_core.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 2a22dc85951ee..4eb9ef9c28003 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1002,16 +1002,11 @@ void smc_smcd_terminate_all(struct smcd_dev *smcd)
 /* Called when an SMCR device is removed or the smc module is unloaded.
  * If smcibdev is given, all SMCR link groups using this device are terminated.
  * If smcibdev is NULL, all SMCR link groups are terminated.
- *
- * We must wait here for QPs been destroyed before we destroy the CQs,
- * or we won't received any CQEs and cdc_pend_tx_wr cannot reach 0 thus
- * smc_sock cannot be released.
  */
 void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 {
 	struct smc_link_group *lgr, *lg;
 	LIST_HEAD(lgr_free_list);
-	LIST_HEAD(lgr_linkdown_list);
 	int i;
 
 	spin_lock_bh(&smc_lgr_list.lock);
@@ -1023,7 +1018,7 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 		list_for_each_entry_safe(lgr, lg, &smc_lgr_list.list, list) {
 			for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
 				if (lgr->lnk[i].smcibdev == smcibdev)
-					list_move_tail(&lgr->list, &lgr_linkdown_list);
+					smcr_link_down_cond_sched(&lgr->lnk[i]);
 			}
 		}
 	}
@@ -1035,16 +1030,6 @@ void smc_smcr_terminate_all(struct smc_ib_device *smcibdev)
 		__smc_lgr_terminate(lgr, false);
 	}
 
-	list_for_each_entry_safe(lgr, lg, &lgr_linkdown_list, list) {
-		for (i = 0; i < SMC_LINKS_PER_LGR_MAX; i++) {
-			if (lgr->lnk[i].smcibdev == smcibdev) {
-				mutex_lock(&lgr->llc_conf_mutex);
-				smcr_link_down_cond(&lgr->lnk[i]);
-				mutex_unlock(&lgr->llc_conf_mutex);
-			}
-		}
-	}
-
 	if (smcibdev) {
 		if (atomic_read(&smcibdev->lnk_cnt))
 			wait_event(smcibdev->lnks_deleted,
-- 
GitLab


From 34942a228aec23ce65fbf4969f091f0f31803880 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:24 -0600
Subject: [PATCH 3384/4878] net: axienet: increase reset timeout

commit 2e5644b1bab2ccea9cfc7a9520af95b94eb0dbf1 upstream.

The previous timeout of 1ms was too short to handle some cases where the
core is reset just after the input clocks were started, which will
be introduced in an upcoming patch. Increase the timeout to 50ms. Also
simplify the reset timeout checking to use read_poll_timeout.

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/xilinx/xilinx_axienet_main.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 69c79cc24e6e4..137c3d33ea685 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -496,7 +496,8 @@ static void axienet_setoptions(struct net_device *ndev, u32 options)
 
 static int __axienet_device_reset(struct axienet_local *lp)
 {
-	u32 timeout;
+	u32 value;
+	int ret;
 
 	/* Reset Axi DMA. This would reset Axi Ethernet core as well. The reset
 	 * process of Axi DMA takes a while to complete as all pending
@@ -506,15 +507,13 @@ static int __axienet_device_reset(struct axienet_local *lp)
 	 * they both reset the entire DMA core, so only one needs to be used.
 	 */
 	axienet_dma_out32(lp, XAXIDMA_TX_CR_OFFSET, XAXIDMA_CR_RESET_MASK);
-	timeout = DELAY_OF_ONE_MILLISEC;
-	while (axienet_dma_in32(lp, XAXIDMA_TX_CR_OFFSET) &
-				XAXIDMA_CR_RESET_MASK) {
-		udelay(1);
-		if (--timeout == 0) {
-			netdev_err(lp->ndev, "%s: DMA reset timeout!\n",
-				   __func__);
-			return -ETIMEDOUT;
-		}
+	ret = read_poll_timeout(axienet_dma_in32, value,
+				!(value & XAXIDMA_CR_RESET_MASK),
+				DELAY_OF_ONE_MILLISEC, 50000, false, lp,
+				XAXIDMA_TX_CR_OFFSET);
+	if (ret) {
+		dev_err(lp->dev, "%s: DMA reset timeout!\n", __func__);
+		return ret;
 	}
 
 	return 0;
-- 
GitLab


From 46c0ccaff28516ccedc2afaa3ce1d0c4284022e0 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:25 -0600
Subject: [PATCH 3385/4878] net: axienet: Wait for PhyRstCmplt after core reset

commit b400c2f4f4c53c86594dd57098970d97d488bfde upstream.

When resetting the device, wait for the PhyRstCmplt bit to be set
in the interrupt status register before continuing initialization, to
ensure that the core is actually ready. When using an external PHY, this
also ensures we do not start trying to access the PHY while it is still
in reset. The PHY reset is initiated by the core reset which is
triggered just above, but remains asserted for 5ms after the core is
reset according to the documentation.

The MgtRdy bit could also be waited for, but unfortunately when using
7-series devices, the bit does not appear to work as documented (it
seems to behave as some sort of link state indication and not just an
indication the transceiver is ready) so it can't really be relied on for
this purpose.

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 137c3d33ea685..811f15eace9f5 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -516,6 +516,16 @@ static int __axienet_device_reset(struct axienet_local *lp)
 		return ret;
 	}
 
+	/* Wait for PhyRstCmplt bit to be set, indicating the PHY reset has finished */
+	ret = read_poll_timeout(axienet_ior, value,
+				value & XAE_INT_PHYRSTCMPLT_MASK,
+				DELAY_OF_ONE_MILLISEC, 50000, false, lp,
+				XAE_IS_OFFSET);
+	if (ret) {
+		dev_err(lp->dev, "%s: timeout waiting for PhyRstCmplt\n", __func__);
+		return ret;
+	}
+
 	return 0;
 }
 
-- 
GitLab


From bcc5d57e6091ef2346eabcd6e2169353a8770ec8 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:26 -0600
Subject: [PATCH 3386/4878] net: axienet: reset core on initialization prior to
 MDIO access

commit 04cc2da39698efd7eb2e30c112538922d26f848e upstream.

In some cases where the Xilinx Ethernet core was used in 1000Base-X or
SGMII modes, which use the internal PCS/PMA PHY, and the MGT
transceiver clock source for the PCS was not running at the time the
FPGA logic was loaded, the core would come up in a state where the
PCS could not be found on the MDIO bus. To fix this, the Ethernet core
(including the PCS) should be reset after enabling the clocks, prior to
attempting to access the PCS using of_mdio_find_device.

Fixes: 1a02556086fc (net: axienet: Properly handle PCS/PMA PHY for 1000BaseX mode)
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 811f15eace9f5..7b94784a1465e 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -2024,6 +2024,11 @@ static int axienet_probe(struct platform_device *pdev)
 	lp->coalesce_count_rx = XAXIDMA_DFT_RX_THRESHOLD;
 	lp->coalesce_count_tx = XAXIDMA_DFT_TX_THRESHOLD;
 
+	/* Reset core now that clocks are enabled, prior to accessing MDIO */
+	ret = __axienet_device_reset(lp);
+	if (ret)
+		goto cleanup_clk;
+
 	lp->phy_node = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
 	if (lp->phy_node) {
 		ret = axienet_mdio_setup(lp);
-- 
GitLab


From 2f548489d64debf093f2299e38a8d0fc655f87b9 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:27 -0600
Subject: [PATCH 3387/4878] net: axienet: add missing memory barriers

commit 95978df6fa328df619c15312e65ece469c2be2d2 upstream.

This driver was missing some required memory barriers:

Use dma_rmb to ensure we see all updates to the descriptor after we see
that an entry has been completed.

Use wmb and rmb to avoid stale descriptor status between the TX path and
TX complete IRQ path.

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 7b94784a1465e..478d80882f01c 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -632,6 +632,8 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
 		if (nr_bds == -1 && !(status & XAXIDMA_BD_STS_COMPLETE_MASK))
 			break;
 
+		/* Ensure we see complete descriptor update */
+		dma_rmb();
 		phys = desc_get_phys_addr(lp, cur_p);
 		dma_unmap_single(ndev->dev.parent, phys,
 				 (cur_p->cntrl & XAXIDMA_BD_CTRL_LENGTH_MASK),
@@ -645,8 +647,10 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
 		cur_p->app1 = 0;
 		cur_p->app2 = 0;
 		cur_p->app4 = 0;
-		cur_p->status = 0;
 		cur_p->skb = NULL;
+		/* ensure our transmit path and device don't prematurely see status cleared */
+		wmb();
+		cur_p->status = 0;
 
 		if (sizep)
 			*sizep += status & XAXIDMA_BD_STS_ACTUAL_LEN_MASK;
@@ -704,6 +708,9 @@ static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
 					    int num_frag)
 {
 	struct axidma_bd *cur_p;
+
+	/* Ensure we see all descriptor updates from device or TX IRQ path */
+	rmb();
 	cur_p = &lp->tx_bd_v[(lp->tx_bd_tail + num_frag) % lp->tx_bd_num];
 	if (cur_p->status & XAXIDMA_BD_STS_ALL_MASK)
 		return NETDEV_TX_BUSY;
@@ -843,6 +850,8 @@ static void axienet_recv(struct net_device *ndev)
 
 		tail_p = lp->rx_bd_p + sizeof(*lp->rx_bd_v) * lp->rx_bd_ci;
 
+		/* Ensure we see complete descriptor update */
+		dma_rmb();
 		phys = desc_get_phys_addr(lp, cur_p);
 		dma_unmap_single(ndev->dev.parent, phys, lp->max_frm_size,
 				 DMA_FROM_DEVICE);
-- 
GitLab


From 7a3d3d7f6d7b3db6cabeb9d43ef207c3eda1b8a5 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:28 -0600
Subject: [PATCH 3388/4878] net: axienet: limit minimum TX ring size

commit 70f5817deddbc6ef3faa35841cab83c280cc653a upstream.

The driver will not work properly if the TX ring size is set to below
MAX_SKB_FRAGS + 1 since it needs to hold at least one full maximally
fragmented packet in the TX ring. Limit setting the ring size to below
this value.

Fixes: 8b09ca823ffb4 ("net: axienet: Make RX/TX ring sizes configurable")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 478d80882f01c..acfd7d545fef5 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -43,6 +43,7 @@
 /* Descriptors defines for Tx and Rx DMA */
 #define TX_BD_NUM_DEFAULT		64
 #define RX_BD_NUM_DEFAULT		1024
+#define TX_BD_NUM_MIN			(MAX_SKB_FRAGS + 1)
 #define TX_BD_NUM_MAX			4096
 #define RX_BD_NUM_MAX			4096
 
@@ -1373,7 +1374,8 @@ static int axienet_ethtools_set_ringparam(struct net_device *ndev,
 	if (ering->rx_pending > RX_BD_NUM_MAX ||
 	    ering->rx_mini_pending ||
 	    ering->rx_jumbo_pending ||
-	    ering->rx_pending > TX_BD_NUM_MAX)
+	    ering->tx_pending < TX_BD_NUM_MIN ||
+	    ering->tx_pending > TX_BD_NUM_MAX)
 		return -EINVAL;
 
 	if (netif_running(ndev))
-- 
GitLab


From 6301f3566aef4e8e8ad6019e43ddb95ad6f65fc6 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:29 -0600
Subject: [PATCH 3389/4878] net: axienet: Fix TX ring slot available check

commit 996defd7f8b5dafc1d480b7585c7c62437f80c3c upstream.

The check for whether a TX ring slot was available was incorrect,
since a slot which had been loaded with transmit data but the device had
not started transmitting would be treated as available, potentially
causing non-transmitted slots to be overwritten. The control field in
the descriptor should be checked, rather than the status field (which may
only be updated when the device completes the entry).

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index acfd7d545fef5..94e39750932c7 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -643,7 +643,6 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
 		if (cur_p->skb && (status & XAXIDMA_BD_STS_COMPLETE_MASK))
 			dev_consume_skb_irq(cur_p->skb);
 
-		cur_p->cntrl = 0;
 		cur_p->app0 = 0;
 		cur_p->app1 = 0;
 		cur_p->app2 = 0;
@@ -651,6 +650,7 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
 		cur_p->skb = NULL;
 		/* ensure our transmit path and device don't prematurely see status cleared */
 		wmb();
+		cur_p->cntrl = 0;
 		cur_p->status = 0;
 
 		if (sizep)
@@ -713,7 +713,7 @@ static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
 	/* Ensure we see all descriptor updates from device or TX IRQ path */
 	rmb();
 	cur_p = &lp->tx_bd_v[(lp->tx_bd_tail + num_frag) % lp->tx_bd_num];
-	if (cur_p->status & XAXIDMA_BD_STS_ALL_MASK)
+	if (cur_p->cntrl)
 		return NETDEV_TX_BUSY;
 	return 0;
 }
-- 
GitLab


From 41831d496772ce095735af9cbff3a17c5d082258 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:30 -0600
Subject: [PATCH 3390/4878] net: axienet: fix number of TX ring slots for
 available check

commit aba57a823d2985a2cc8c74a2535f3a88e68d9424 upstream.

The check for the number of available TX ring slots was off by 1 since a
slot is required for the skb header as well as each fragment. This could
result in overwriting a TX ring slot that was still in use.

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 94e39750932c7..638f2fee8074b 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -747,7 +747,7 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	num_frag = skb_shinfo(skb)->nr_frags;
 	cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
 
-	if (axienet_check_tx_bd_space(lp, num_frag)) {
+	if (axienet_check_tx_bd_space(lp, num_frag + 1)) {
 		if (netif_queue_stopped(ndev))
 			return NETDEV_TX_BUSY;
 
@@ -757,7 +757,7 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		smp_mb();
 
 		/* Space might have just been freed - check again */
-		if (axienet_check_tx_bd_space(lp, num_frag))
+		if (axienet_check_tx_bd_space(lp, num_frag + 1))
 			return NETDEV_TX_BUSY;
 
 		netif_wake_queue(ndev);
-- 
GitLab


From 557829d42d1f5cf77e743b0b8286940d0b1e4428 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:31 -0600
Subject: [PATCH 3391/4878] net: axienet: fix for TX busy handling

commit bb193e3db8b86a63f26889c99e14fd30c9ebd72a upstream.

Network driver documentation indicates we should be avoiding returning
NETDEV_TX_BUSY from ndo_start_xmit in normal cases, since it requires
the packets to be requeued. Instead the queue should be stopped after
a packet is added to the TX ring when there may not be enough room for an
additional one. Also, when TX ring entries are completed, we should only
wake the queue if we know there is room for another full maximally
fragmented packet.

Print a warning if there is insufficient space at the start of start_xmit,
since this should no longer happen.

Combined with increasing the default TX ring size (in a subsequent
patch), this appears to recover the TX performance lost by previous changes
to actually manage the TX ring state properly.

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/xilinx/xilinx_axienet_main.c | 86 ++++++++++---------
 1 file changed, 47 insertions(+), 39 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 638f2fee8074b..2dd8126eee874 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -660,6 +660,32 @@ static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
 	return i;
 }
 
+/**
+ * axienet_check_tx_bd_space - Checks if a BD/group of BDs are currently busy
+ * @lp:		Pointer to the axienet_local structure
+ * @num_frag:	The number of BDs to check for
+ *
+ * Return: 0, on success
+ *	    NETDEV_TX_BUSY, if any of the descriptors are not free
+ *
+ * This function is invoked before BDs are allocated and transmission starts.
+ * This function returns 0 if a BD or group of BDs can be allocated for
+ * transmission. If the BD or any of the BDs are not free the function
+ * returns a busy status. This is invoked from axienet_start_xmit.
+ */
+static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
+					    int num_frag)
+{
+	struct axidma_bd *cur_p;
+
+	/* Ensure we see all descriptor updates from device or TX IRQ path */
+	rmb();
+	cur_p = &lp->tx_bd_v[(lp->tx_bd_tail + num_frag) % lp->tx_bd_num];
+	if (cur_p->cntrl)
+		return NETDEV_TX_BUSY;
+	return 0;
+}
+
 /**
  * axienet_start_xmit_done - Invoked once a transmit is completed by the
  * Axi DMA Tx channel.
@@ -689,33 +715,8 @@ static void axienet_start_xmit_done(struct net_device *ndev)
 	/* Matches barrier in axienet_start_xmit */
 	smp_mb();
 
-	netif_wake_queue(ndev);
-}
-
-/**
- * axienet_check_tx_bd_space - Checks if a BD/group of BDs are currently busy
- * @lp:		Pointer to the axienet_local structure
- * @num_frag:	The number of BDs to check for
- *
- * Return: 0, on success
- *	    NETDEV_TX_BUSY, if any of the descriptors are not free
- *
- * This function is invoked before BDs are allocated and transmission starts.
- * This function returns 0 if a BD or group of BDs can be allocated for
- * transmission. If the BD or any of the BDs are not free the function
- * returns a busy status. This is invoked from axienet_start_xmit.
- */
-static inline int axienet_check_tx_bd_space(struct axienet_local *lp,
-					    int num_frag)
-{
-	struct axidma_bd *cur_p;
-
-	/* Ensure we see all descriptor updates from device or TX IRQ path */
-	rmb();
-	cur_p = &lp->tx_bd_v[(lp->tx_bd_tail + num_frag) % lp->tx_bd_num];
-	if (cur_p->cntrl)
-		return NETDEV_TX_BUSY;
-	return 0;
+	if (!axienet_check_tx_bd_space(lp, MAX_SKB_FRAGS + 1))
+		netif_wake_queue(ndev);
 }
 
 /**
@@ -748,19 +749,14 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	cur_p = &lp->tx_bd_v[lp->tx_bd_tail];
 
 	if (axienet_check_tx_bd_space(lp, num_frag + 1)) {
-		if (netif_queue_stopped(ndev))
-			return NETDEV_TX_BUSY;
-
+		/* Should not happen as last start_xmit call should have
+		 * checked for sufficient space and queue should only be
+		 * woken when sufficient space is available.
+		 */
 		netif_stop_queue(ndev);
-
-		/* Matches barrier in axienet_start_xmit_done */
-		smp_mb();
-
-		/* Space might have just been freed - check again */
-		if (axienet_check_tx_bd_space(lp, num_frag + 1))
-			return NETDEV_TX_BUSY;
-
-		netif_wake_queue(ndev);
+		if (net_ratelimit())
+			netdev_warn(ndev, "TX ring unexpectedly full\n");
+		return NETDEV_TX_BUSY;
 	}
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL) {
@@ -821,6 +817,18 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	if (++lp->tx_bd_tail >= lp->tx_bd_num)
 		lp->tx_bd_tail = 0;
 
+	/* Stop queue if next transmit may not have space */
+	if (axienet_check_tx_bd_space(lp, MAX_SKB_FRAGS + 1)) {
+		netif_stop_queue(ndev);
+
+		/* Matches barrier in axienet_start_xmit_done */
+		smp_mb();
+
+		/* Space might have just been freed - check again */
+		if (!axienet_check_tx_bd_space(lp, MAX_SKB_FRAGS + 1))
+			netif_wake_queue(ndev);
+	}
+
 	return NETDEV_TX_OK;
 }
 
-- 
GitLab


From d7544cf6939c1f978933992db483be4a6351494b Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:41:32 -0600
Subject: [PATCH 3392/4878] net: axienet: increase default TX ring size to 128

commit 2d19c3fd80178160dd505ccd7fed1643831227a5 upstream.

With previous changes to make the driver handle the TX ring size more
correctly, the default TX ring size of 64 appears to significantly
bottleneck TX performance to around 600 Mbps on a 1 Gbps link on ZynqMP.
Increasing this to 128 seems to bring performance up to near line rate and
shouldn't cause excess bufferbloat (this driver doesn't yet support modern
byte-based queue management).

Fixes: 8a3b7a252dca9 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 2dd8126eee874..0baf85122f5ac 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -41,7 +41,7 @@
 #include "xilinx_axienet.h"
 
 /* Descriptors defines for Tx and Rx DMA */
-#define TX_BD_NUM_DEFAULT		64
+#define TX_BD_NUM_DEFAULT		128
 #define RX_BD_NUM_DEFAULT		1024
 #define TX_BD_NUM_MIN			(MAX_SKB_FRAGS + 1)
 #define TX_BD_NUM_MAX			4096
-- 
GitLab


From 8b8ff4c793ee3d412569033c8ef0bc5d98a87262 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri, 7 Jan 2022 12:09:36 -0800
Subject: [PATCH 3393/4878] HID: vivaldi: fix handling devices not using
 numbered reports

commit 3fe6acd4dc922237b30e55473c9349c6ce0690f3 upstream.

Unfortunately details of USB HID transport bled into HID core and
handling of numbered/unnumbered reports is quite a mess, with
hid_report_len() calculating the length according to USB rules,
and hid_hw_raw_request() adding report ID to the buffer for both
numbered and unnumbered reports.

Untangling it all requres a lot of changes in HID, so for now let's
handle this in the driver.

[jkosina@suse.cz: microoptimize field->report->id to report->id]
Fixes: 14c9c014babe ("HID: add vivaldi HID driver")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Stephen Boyd <swboyd@chromium.org> # CoachZ
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-vivaldi.c | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/drivers/hid/hid-vivaldi.c b/drivers/hid/hid-vivaldi.c
index 72957a9f71170..576518e704ee6 100644
--- a/drivers/hid/hid-vivaldi.c
+++ b/drivers/hid/hid-vivaldi.c
@@ -74,10 +74,11 @@ static void vivaldi_feature_mapping(struct hid_device *hdev,
 				    struct hid_usage *usage)
 {
 	struct vivaldi_data *drvdata = hid_get_drvdata(hdev);
+	struct hid_report *report = field->report;
 	int fn_key;
 	int ret;
 	u32 report_len;
-	u8 *buf;
+	u8 *report_data, *buf;
 
 	if (field->logical != HID_USAGE_FN_ROW_PHYSMAP ||
 	    (usage->hid & HID_USAGE_PAGE) != HID_UP_ORDINAL)
@@ -89,12 +90,24 @@ static void vivaldi_feature_mapping(struct hid_device *hdev,
 	if (fn_key > drvdata->max_function_row_key)
 		drvdata->max_function_row_key = fn_key;
 
-	buf = hid_alloc_report_buf(field->report, GFP_KERNEL);
-	if (!buf)
+	report_data = buf = hid_alloc_report_buf(report, GFP_KERNEL);
+	if (!report_data)
 		return;
 
-	report_len = hid_report_len(field->report);
-	ret = hid_hw_raw_request(hdev, field->report->id, buf,
+	report_len = hid_report_len(report);
+	if (!report->id) {
+		/*
+		 * hid_hw_raw_request() will stuff report ID (which will be 0)
+		 * into the first byte of the buffer even for unnumbered
+		 * reports, so we need to account for this to avoid getting
+		 * -EOVERFLOW in return.
+		 * Note that hid_alloc_report_buf() adds 7 bytes to the size
+		 * so we can safely say that we have space for an extra byte.
+		 */
+		report_len++;
+	}
+
+	ret = hid_hw_raw_request(hdev, report->id, report_data,
 				 report_len, HID_FEATURE_REPORT,
 				 HID_REQ_GET_REPORT);
 	if (ret < 0) {
@@ -103,7 +116,16 @@ static void vivaldi_feature_mapping(struct hid_device *hdev,
 		goto out;
 	}
 
-	ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
+	if (!report->id) {
+		/*
+		 * Undo the damage from hid_hw_raw_request() for unnumbered
+		 * reports.
+		 */
+		report_data++;
+		report_len--;
+	}
+
+	ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, report_data,
 				   report_len, 0);
 	if (ret) {
 		dev_warn(&hdev->dev, "failed to report feature %d\n",
-- 
GitLab


From c736ec01a2fc2f751c52ac6025a14a0e1308460b Mon Sep 17 00:00:00 2001
From: Laurence de Bruxelles <lfdebrux@gmail.com>
Date: Sat, 1 Jan 2022 15:41:49 +0000
Subject: [PATCH 3394/4878] rtc: pxa: fix null pointer dereference

commit 34127b3632b21e5c391756e724b1198eb9917981 upstream.

With the latest stable kernel versions the rtc on the PXA based
Zaurus does not work, when booting I see the following kernel messages:

pxa-rtc pxa-rtc: failed to find rtc clock source
pxa-rtc pxa-rtc: Unable to init SA1100 RTC sub-device
pxa-rtc: probe of pxa-rtc failed with error -2
hctosys: unable to open rtc device (rtc0)

I think this is because commit f2997775b111 ("rtc: sa1100: fix possible
race condition") moved the allocation of the rtc_device struct out of
sa1100_rtc_init and into sa1100_rtc_probe. This means that pxa_rtc_probe
also needs to do allocation for the rtc_device struct, otherwise
sa1100_rtc_init will try to dereference a null pointer. This patch adds
that allocation by copying how sa1100_rtc_probe in
drivers/rtc/rtc-sa1100.c does it; after the IRQs are set up a managed
rtc_device is allocated.

I've tested this patch with `qemu-system-arm -machine akita` and with a
real Zaurus SL-C1000 applied to 4.19, 5.4, and 5.10.

Signed-off-by: Laurence de Bruxelles <lfdebrux@gmail.com>
Fixes: f2997775b111 ("rtc: sa1100: fix possible race condition")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220101154149.12026-1-lfdebrux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rtc/rtc-pxa.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index d2f1d8f754bf3..cf8119b6d3204 100644
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -330,6 +330,10 @@ static int __init pxa_rtc_probe(struct platform_device *pdev)
 	if (sa1100_rtc->irq_alarm < 0)
 		return -ENXIO;
 
+	sa1100_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
+	if (IS_ERR(sa1100_rtc->rtc))
+		return PTR_ERR(sa1100_rtc->rtc);
+
 	pxa_rtc->base = devm_ioremap(dev, pxa_rtc->ress->start,
 				resource_size(pxa_rtc->ress));
 	if (!pxa_rtc->base) {
-- 
GitLab


From 0c4ebcb00d8871ed4b9916072d1d177c33bd43e3 Mon Sep 17 00:00:00 2001
From: Eli Cohen <elic@nvidia.com>
Date: Thu, 30 Dec 2021 16:20:24 +0200
Subject: [PATCH 3395/4878] vdpa/mlx5: Fix wrong configuration of
 virtio_version_1_0

commit 97143b70aa847f2b0a1f959dde126b76ff7b5376 upstream.

Remove overriding of virtio_version_1_0 which forced the virtqueue
object to version 1.

Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 devices")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20211230142024.142979-1-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index fbdc9468818d3..65d6f8fd81e70 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -812,8 +812,6 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtque
 	MLX5_SET(virtio_q, vq_ctx, umem_3_id, mvq->umem3.id);
 	MLX5_SET(virtio_q, vq_ctx, umem_3_size, mvq->umem3.size);
 	MLX5_SET(virtio_q, vq_ctx, pd, ndev->mvdev.res.pdn);
-	if (MLX5_CAP_DEV_VDPA_EMULATION(ndev->mvdev.mdev, eth_frame_offload_type))
-		MLX5_SET(virtio_q, vq_ctx, virtio_version_1_0, 1);
 
 	err = mlx5_cmd_exec(ndev->mvdev.mdev, in, inlen, out, sizeof(out));
 	if (err)
-- 
GitLab


From 56daa21414e9cf66131de3458ba389a1f3a9c690 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 6 Jan 2022 07:57:46 -0500
Subject: [PATCH 3396/4878] virtio_ring: mark ring unused on error

commit 1861ba626ae9b98136f3e504208cdef6b29cd3ec upstream.

A recently added error path does not mark ring unused when exiting on
OOM, which will lead to BUG on the next entry in debug builds.

TODO: refactor code so we have START_USE and END_USE in the same function.

Fixes: fc6d70f40b3d ("virtio_ring: check desc == NULL when using indirect with packed")
Cc: "Xuan Zhuo" <xuanzhuo@linux.alibaba.com>
Cc: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virtio/virtio_ring.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index cce75d3b3ba05..3cc2a4ee7152c 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1124,8 +1124,10 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq,
 	if (virtqueue_use_indirect(_vq, total_sg)) {
 		err = virtqueue_add_indirect_packed(vq, sgs, total_sg, out_sgs,
 						    in_sgs, data, gfp);
-		if (err != -ENOMEM)
+		if (err != -ENOMEM) {
+			END_USE(vq);
 			return err;
+		}
 
 		/* fall back on direct */
 	}
-- 
GitLab


From 69e7e979ed668656551ca141dc235a756da32eb0 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Mon, 3 Jan 2022 11:32:36 -0600
Subject: [PATCH 3397/4878] taskstats: Cleanup the use of task->exit_code

commit 1b5a42d9c85f0e731f01c8d1129001fd8531a8a0 upstream.

In the function bacct_add_task the code reading task->exit_code was
introduced in commit f3cef7a99469 ("[PATCH] csa: basic accounting over
taskstats"), and it is not entirely clear what the taskstats interface
is trying to return as only returning the exit_code of the first task
in a process doesn't make a lot of sense.

As best as I can figure the intent is to return task->exit_code after
a task exits.  The field is returned with per task fields, so the
exit_code of the entire process is not wanted.  Only the value of the
first task is returned so this is not a useful way to get the per task
ptrace stop code.  The ordinary case of returning this value is
returning after a task exits, which also precludes use for getting
a ptrace value.

It is common to for the first task of a process to also be the last
task of a process so this field may have done something reasonable by
accident in testing.

Make ac_exitcode a reliable per task value by always returning it for
every exited task.

Setting ac_exitcode in a sensible mannter makes it possible to continue
to provide this value going forward.

Cc: Balbir Singh <bsingharora@gmail.com>
Fixes: f3cef7a99469 ("[PATCH] csa: basic accounting over taskstats")
Link: https://lkml.kernel.org/r/20220103213312.9144-5-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/tsacct.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 257ffb993ea23..fd2f7a052fdd9 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -38,11 +38,10 @@ void bacct_add_tsk(struct user_namespace *user_ns,
 	stats->ac_btime = clamp_t(time64_t, btime, 0, U32_MAX);
 	stats->ac_btime64 = btime;
 
-	if (thread_group_leader(tsk)) {
+	if (tsk->flags & PF_EXITING)
 		stats->ac_exitcode = tsk->exit_code;
-		if (tsk->flags & PF_FORKNOEXEC)
-			stats->ac_flag |= AFORK;
-	}
+	if (thread_group_leader(tsk) && (tsk->flags & PF_FORKNOEXEC))
+		stats->ac_flag |= AFORK;
 	if (tsk->flags & PF_SUPERPRIV)
 		stats->ac_flag |= ASU;
 	if (tsk->flags & PF_DUMPCORE)
-- 
GitLab


From edc09548ffc52433ed25ef4a829e664e353f615d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 13 Jan 2022 01:22:29 -0800
Subject: [PATCH 3398/4878] inet: frags: annotate races around fqdir->dead and
 fqdir->high_thresh

commit 91341fa0003befd097e190ec2a4bf63ad957c49a upstream.

Both fields can be read/written without synchronization,
add proper accessors and documentation.

Fixes: d5dd88794a13 ("inet: fix various use-after-free in defrags units")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/inet_frag.h  | 11 +++++++++--
 include/net/ipv6_frag.h  |  3 ++-
 net/ipv4/inet_fragment.c |  8 +++++---
 net/ipv4/ip_fragment.c   |  3 ++-
 4 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index bac79e817776c..4cbd413e71a3f 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -116,8 +116,15 @@ int fqdir_init(struct fqdir **fqdirp, struct inet_frags *f, struct net *net);
 
 static inline void fqdir_pre_exit(struct fqdir *fqdir)
 {
-	fqdir->high_thresh = 0; /* prevent creation of new frags */
-	fqdir->dead = true;
+	/* Prevent creation of new frags.
+	 * Pairs with READ_ONCE() in inet_frag_find().
+	 */
+	WRITE_ONCE(fqdir->high_thresh, 0);
+
+	/* Pairs with READ_ONCE() in inet_frag_kill(), ip_expire()
+	 * and ip6frag_expire_frag_queue().
+	 */
+	WRITE_ONCE(fqdir->dead, true);
 }
 void fqdir_exit(struct fqdir *fqdir);
 
diff --git a/include/net/ipv6_frag.h b/include/net/ipv6_frag.h
index 851029ecff13c..0a4779175a523 100644
--- a/include/net/ipv6_frag.h
+++ b/include/net/ipv6_frag.h
@@ -67,7 +67,8 @@ ip6frag_expire_frag_queue(struct net *net, struct frag_queue *fq)
 	struct sk_buff *head;
 
 	rcu_read_lock();
-	if (fq->q.fqdir->dead)
+	/* Paired with the WRITE_ONCE() in fqdir_pre_exit(). */
+	if (READ_ONCE(fq->q.fqdir->dead))
 		goto out_rcu_unlock;
 	spin_lock(&fq->q.lock);
 
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 10d31733297d7..e0e8a65d561ec 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -204,9 +204,9 @@ void inet_frag_kill(struct inet_frag_queue *fq)
 		/* The RCU read lock provides a memory barrier
 		 * guaranteeing that if fqdir->dead is false then
 		 * the hash table destruction will not start until
-		 * after we unlock.  Paired with inet_frags_exit_net().
+		 * after we unlock.  Paired with fqdir_pre_exit().
 		 */
-		if (!fqdir->dead) {
+		if (!READ_ONCE(fqdir->dead)) {
 			rhashtable_remove_fast(&fqdir->rhashtable, &fq->node,
 					       fqdir->f->rhash_params);
 			refcount_dec(&fq->refcnt);
@@ -321,9 +321,11 @@ static struct inet_frag_queue *inet_frag_create(struct fqdir *fqdir,
 /* TODO : call from rcu_read_lock() and no longer use refcount_inc_not_zero() */
 struct inet_frag_queue *inet_frag_find(struct fqdir *fqdir, void *key)
 {
+	/* This pairs with WRITE_ONCE() in fqdir_pre_exit(). */
+	long high_thresh = READ_ONCE(fqdir->high_thresh);
 	struct inet_frag_queue *fq = NULL, *prev;
 
-	if (!fqdir->high_thresh || frag_mem_limit(fqdir) > fqdir->high_thresh)
+	if (!high_thresh || frag_mem_limit(fqdir) > high_thresh)
 		return NULL;
 
 	rcu_read_lock();
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index cfeb8890f94ee..fad803d2d711e 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -144,7 +144,8 @@ static void ip_expire(struct timer_list *t)
 
 	rcu_read_lock();
 
-	if (qp->q.fqdir->dead)
+	/* Paired with WRITE_ONCE() in fqdir_pre_exit(). */
+	if (READ_ONCE(qp->q.fqdir->dead))
 		goto out_rcu_unlock;
 
 	spin_lock(&qp->q.lock);
-- 
GitLab


From 2b1415c60b2e4aff93f790a7ae374dd6ef20d3a5 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 18 Jan 2022 03:43:40 -0800
Subject: [PATCH 3399/4878] netns: add schedule point in ops_exit_list()

commit 2836615aa22de55b8fca5e32fe1b27a67cda625e upstream.

When under stress, cleanup_net() can have to dismantle
netns in big numbers. ops_exit_list() currently calls
many helpers [1] that have no schedule point, and we can
end up with soft lockups, particularly on hosts
with many cpus.

Even for moderate amount of netns processed by cleanup_net()
this patch avoids latency spikes.

[1] Some of these helpers like fib_sync_up() and fib_sync_down_dev()
are very slow because net/ipv4/fib_semantics.c uses host-wide hash tables,
and ifindex is used as the only input of two hash functions.
    ifindexes tend to be the same for all netns (lo.ifindex==1 per instance)
    This will be fixed in a separate patch.

Fixes: 72ad937abd0a ("net: Add support for batching network namespace cleanups")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/net_namespace.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index ac852db83de9f..cbff7d94b993e 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -183,8 +183,10 @@ static void ops_exit_list(const struct pernet_operations *ops,
 {
 	struct net *net;
 	if (ops->exit) {
-		list_for_each_entry(net, net_exit_list, exit_list)
+		list_for_each_entry(net, net_exit_list, exit_list) {
 			ops->exit(net);
+			cond_resched();
+		}
 	}
 	if (ops->exit_batch)
 		ops->exit_batch(net_exit_list);
-- 
GitLab


From 7f2ca96bd26644517ab03357bcf2982cf79c2ff7 Mon Sep 17 00:00:00 2001
From: Guillaume Nault <gnault@redhat.com>
Date: Mon, 10 Jan 2022 14:43:06 +0100
Subject: [PATCH 3400/4878] xfrm: Don't accidentally set RTO_ONLINK in
 decode_session4()

commit 23e7b1bfed61e301853b5e35472820d919498278 upstream.

Similar to commit 94e2238969e8 ("xfrm4: strip ECN bits from tos field"),
clear the ECN bits from iph->tos when setting ->flowi4_tos.
This ensures that the last bit of ->flowi4_tos is cleared, so
ip_route_output_key_hash() isn't going to restrict the scope of the
route lookup.

Use ~INET_ECN_MASK instead of IPTOS_RT_MASK, because we have no reason
to clear the high order bits.

Found by code inspection, compile tested only.

Fixes: 4da3089f2b58 ("[IPSEC]: Use TOS when doing tunnel lookups")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/xfrm/xfrm_policy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 9f02d3fef1843..c4a195cb36817 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -31,6 +31,7 @@
 #include <linux/if_tunnel.h>
 #include <net/dst.h>
 #include <net/flow.h>
+#include <net/inet_ecn.h>
 #include <net/xfrm.h>
 #include <net/ip.h>
 #include <net/gre.h>
@@ -3294,7 +3295,7 @@ decode_session4(struct sk_buff *skb, struct flowi *fl, bool reverse)
 	fl4->flowi4_proto = iph->protocol;
 	fl4->daddr = reverse ? iph->saddr : iph->daddr;
 	fl4->saddr = reverse ? iph->daddr : iph->saddr;
-	fl4->flowi4_tos = iph->tos;
+	fl4->flowi4_tos = iph->tos & ~INET_ECN_MASK;
 
 	if (!ip_is_fragment(iph)) {
 		switch (iph->protocol) {
-- 
GitLab


From cd5c24d2230f418159d46766b2705a6058cf8650 Mon Sep 17 00:00:00 2001
From: Guillaume Nault <gnault@redhat.com>
Date: Mon, 10 Jan 2022 14:43:09 +0100
Subject: [PATCH 3401/4878] gre: Don't accidentally set RTO_ONLINK in
 gre_fill_metadata_dst()

commit f7716b318568b22fbf0e3be99279a979e217cf71 upstream.

Mask the ECN bits before initialising ->flowi4_tos. The tunnel key may
have the last ECN bit set, which will interfere with the route lookup
process as ip_route_output_key_hash() interpretes this bit specially
(to restrict the route scope).

Found by code inspection, compile tested only.

Fixes: 962924fa2b7a ("ip_gre: Refactor collect metatdata mode tunnel xmit to ip_md_tunnel_xmit")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/ip_gre.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index a9cc05043fa47..e4504dd510c6d 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -599,8 +599,9 @@ static int gre_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
 
 	key = &info->key;
 	ip_tunnel_init_flow(&fl4, IPPROTO_GRE, key->u.ipv4.dst, key->u.ipv4.src,
-			    tunnel_id_to_key32(key->tun_id), key->tos, 0,
-			    skb->mark, skb_get_hash(skb));
+			    tunnel_id_to_key32(key->tun_id),
+			    key->tos & ~INET_ECN_MASK, 0, skb->mark,
+			    skb_get_hash(skb));
 	rt = ip_route_output_key(dev_net(dev), &fl4);
 	if (IS_ERR(rt))
 		return PTR_ERR(rt);
-- 
GitLab


From 7b9d40e9f60d3fdc2a130b943223308c338fc49d Mon Sep 17 00:00:00 2001
From: Guillaume Nault <gnault@redhat.com>
Date: Mon, 10 Jan 2022 14:43:11 +0100
Subject: [PATCH 3402/4878] libcxgb: Don't accidentally set RTO_ONLINK in
 cxgb_find_route()

commit a915deaa9abe4fb3a440312c954253a6a733608e upstream.

Mask the ECN bits before calling ip_route_output_ports(). The tos
variable might be passed directly from an IPv4 header, so it may have
the last ECN bit set. This interferes with the route lookup process as
ip_route_output_key_hash() interpretes this bit specially (to restrict
the route scope).

Found by code inspection, compile tested only.

Fixes: 804c2f3e36ef ("libcxgb,iw_cxgb4,cxgbit: add cxgb_find_route()")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
index d04a6c1634452..da8d10475a08e 100644
--- a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
+++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.c
@@ -32,6 +32,7 @@
 
 #include <linux/tcp.h>
 #include <linux/ipv6.h>
+#include <net/inet_ecn.h>
 #include <net/route.h>
 #include <net/ip6_route.h>
 
@@ -99,7 +100,7 @@ cxgb_find_route(struct cxgb4_lld_info *lldi,
 
 	rt = ip_route_output_ports(&init_net, &fl4, NULL, peer_ip, local_ip,
 				   peer_port, local_port, IPPROTO_TCP,
-				   tos, 0);
+				   tos & ~INET_ECN_MASK, 0);
 	if (IS_ERR(rt))
 		return NULL;
 	n = dst_neigh_lookup(&rt->dst, &peer_ip);
-- 
GitLab


From 68a83051c8b1dbc87221a7cf429e8b8e23cdcffb Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 12 Jan 2022 10:50:57 +0200
Subject: [PATCH 3403/4878] perf script: Fix hex dump character output

commit 62942e9fda9fd1def10ffcbd5e1c025b3c9eec17 upstream.

Using grep -C with perf script -D can give erroneous results as grep loses
lines due to non-printable characters, for example, below the 0020, 0060
and 0070 lines are missing:

 $ perf script -D | grep -C10 AUX | head
 .  0010:  08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00  ................
 .  0030:  01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00  ................
 .  0040:  00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
 .  0050:  00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
 .  0080:  02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00  ................
 .  0090:  00 00 00 00 00 00 00 00                          ........

 0 0 0x450 [0x98]: PERF_RECORD_AUXTRACE_INFO type: 1
   PMU Type            8
   Time Shift          31

perf's isprint() is a custom implementation from the kernel, but the
kernel's _ctype appears to include characters from Latin-1 Supplement which
is not compatible with, for example, UTF-8. Fix by checking also isascii().

After:

 $ tools/perf/perf script -D | grep -C10 AUX | head
 .  0010:  08 00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00  ................
 .  0020:  03 84 32 2f 00 00 00 00 63 7c 4f d2 fa ff ff ff  ..2/....c|O.....
 .  0030:  01 00 00 00 00 00 00 00 00 04 00 00 00 00 00 00  ................
 .  0040:  00 08 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
 .  0050:  00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
 .  0060:  00 02 00 00 00 00 00 00 00 c0 03 00 00 00 00 00  ................
 .  0070:  e2 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00  ................
 .  0080:  02 00 00 00 00 00 00 00 1b 00 00 00 00 00 00 00  ................
 .  0090:  00 00 00 00 00 00 00 00                          ........

Fixes: 3052ba56bcb58904 ("tools perf: Move from sane_ctype.h obtained from git to the Linux's original")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20220112085057.277205-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 5cda5565777a0..0af163abaa62b 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -145,7 +145,7 @@ static int trace_event_printer(enum binary_printer_ops op,
 		break;
 	case BINARY_PRINT_CHAR_DATA:
 		printed += color_fprintf(fp, color, "%c",
-			      isprint(ch) ? ch : '.');
+			      isprint(ch) && isascii(ch) ? ch : '.');
 		break;
 	case BINARY_PRINT_CHAR_PAD:
 		printed += color_fprintf(fp, color, " ");
-- 
GitLab


From cd22e22e8eac2db210d7040757963fab6e1d8aa0 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Wed, 15 Dec 2021 13:01:04 +0200
Subject: [PATCH 3404/4878] dmaengine: at_xdmac: Don't start transactions at
 tx_submit level

commit bccfb96b59179d4f96cbbd1ddff8fac6d335eae4 upstream.

tx_submit is supposed to push the current transaction descriptor to a
pending queue, waiting for issue_pending() to be called. issue_pending()
must start the transfer, not tx_submit(), thus remove
at_xdmac_start_xfer() from at_xdmac_tx_submit(). Clients of at_xdmac that
assume that tx_submit() starts the transfer must be updated and call
dma_async_issue_pending() if they miss to call it (one example is
atmel_serial).

As the at_xdmac_start_xfer() is now called only from
at_xdmac_advance_work() when !at_xdmac_chan_is_enabled(), the
at_xdmac_chan_is_enabled() check is no longer needed in
at_xdmac_start_xfer(), thus remove it.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-2-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/at_xdmac.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 627ad74c879fd..9cc8e701c47db 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -338,9 +338,6 @@ static void at_xdmac_start_xfer(struct at_xdmac_chan *atchan,
 
 	dev_vdbg(chan2dev(&atchan->chan), "%s: desc 0x%p\n", __func__, first);
 
-	if (at_xdmac_chan_is_enabled(atchan))
-		return;
-
 	/* Set transfer as active to not try to start it again. */
 	first->active_xfer = true;
 
@@ -430,9 +427,6 @@ static dma_cookie_t at_xdmac_tx_submit(struct dma_async_tx_descriptor *tx)
 	dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
 		 __func__, atchan, desc);
 	list_add_tail(&desc->xfer_node, &atchan->xfers_list);
-	if (list_is_singular(&atchan->xfers_list))
-		at_xdmac_start_xfer(atchan, desc);
-
 	spin_unlock_irqrestore(&atchan->lock, irqflags);
 	return cookie;
 }
-- 
GitLab


From c536b351a75fb84220e1686a82a495972077229a Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Wed, 15 Dec 2021 13:01:05 +0200
Subject: [PATCH 3405/4878] dmaengine: at_xdmac: Start transfer for cyclic
 channels in issue_pending

commit e6af9b05bec63cd4d1de2a33968cd0be2a91282a upstream.

Cyclic channels must too call issue_pending in order to start a transfer.
Start the transfer in issue_pending regardless of the type of channel.
This wrongly worked before, because in the past the transfer was started
at tx_submit level when only a desc in the transfer list.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-3-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/at_xdmac.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 9cc8e701c47db..0dfd20d4e6edf 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1718,11 +1718,9 @@ static void at_xdmac_issue_pending(struct dma_chan *chan)
 
 	dev_dbg(chan2dev(&atchan->chan), "%s\n", __func__);
 
-	if (!at_xdmac_chan_is_cyclic(atchan)) {
-		spin_lock_irqsave(&atchan->lock, flags);
-		at_xdmac_advance_work(atchan);
-		spin_unlock_irqrestore(&atchan->lock, flags);
-	}
+	spin_lock_irqsave(&atchan->lock, flags);
+	at_xdmac_advance_work(atchan);
+	spin_unlock_irqrestore(&atchan->lock, flags);
 
 	return;
 }
-- 
GitLab


From b5b27c5e3315998991fb59fc62feaf97f577b189 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Wed, 15 Dec 2021 13:01:06 +0200
Subject: [PATCH 3406/4878] dmaengine: at_xdmac: Print debug message after
 realeasing the lock

commit 5edc24ac876a928f36f407a0fcdb33b94a3a210f upstream.

It is desirable to do the prints without the lock held if possible, so
move the print after the lock is released.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-4-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/at_xdmac.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 0dfd20d4e6edf..ebd578a47958c 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -424,10 +424,12 @@ static dma_cookie_t at_xdmac_tx_submit(struct dma_async_tx_descriptor *tx)
 	spin_lock_irqsave(&atchan->lock, irqflags);
 	cookie = dma_cookie_assign(tx);
 
-	dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
-		 __func__, atchan, desc);
 	list_add_tail(&desc->xfer_node, &atchan->xfers_list);
 	spin_unlock_irqrestore(&atchan->lock, irqflags);
+
+	dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
+		 __func__, atchan, desc);
+
 	return cookie;
 }
 
-- 
GitLab


From 7ab120636d4ef854d468d8025006ef3fe2750db9 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Wed, 15 Dec 2021 13:01:10 +0200
Subject: [PATCH 3407/4878] dmaengine: at_xdmac: Fix concurrency over
 xfers_list

commit 18deddea9184b62941395889ff7659529c877326 upstream.

Since tx_submit can be called from a hard IRQ, xfers_list must be
protected with a lock to avoid concurency on the list's elements.
Since at_xdmac_handle_cyclic() is called from a tasklet, spin_lock_irq
is enough to protect from a hard IRQ.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-8-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/at_xdmac.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index ebd578a47958c..b3326b5e70d87 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1559,14 +1559,17 @@ static void at_xdmac_handle_cyclic(struct at_xdmac_chan *atchan)
 	struct at_xdmac_desc		*desc;
 	struct dma_async_tx_descriptor	*txd;
 
-	if (!list_empty(&atchan->xfers_list)) {
-		desc = list_first_entry(&atchan->xfers_list,
-					struct at_xdmac_desc, xfer_node);
-		txd = &desc->tx_dma_desc;
-
-		if (txd->flags & DMA_PREP_INTERRUPT)
-			dmaengine_desc_get_callback_invoke(txd, NULL);
+	spin_lock_irq(&atchan->lock);
+	if (list_empty(&atchan->xfers_list)) {
+		spin_unlock_irq(&atchan->lock);
+		return;
 	}
+	desc = list_first_entry(&atchan->xfers_list, struct at_xdmac_desc,
+				xfer_node);
+	spin_unlock_irq(&atchan->lock);
+	txd = &desc->tx_dma_desc;
+	if (txd->flags & DMA_PREP_INTERRUPT)
+		dmaengine_desc_get_callback_invoke(txd, NULL);
 }
 
 static void at_xdmac_handle_error(struct at_xdmac_chan *atchan)
-- 
GitLab


From 0078f053714da624ac2d088c0f37bf81ed3ecf27 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Wed, 15 Dec 2021 13:01:12 +0200
Subject: [PATCH 3408/4878] dmaengine: at_xdmac: Fix lld view setting

commit 1385eb4d14d447cc5d744bc2ac34f43be66c9963 upstream.

AT_XDMAC_CNDC_NDVIEW_NDV3 was set even for AT_XDMAC_MBR_UBC_NDV2,
because of the wrong bit handling. Fix it.

Fixes: ee0fe35c8dcd ("dmaengine: xdmac: Handle descriptor's view 3 registers")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-10-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/at_xdmac.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index b3326b5e70d87..b905f99bf8aab 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -89,6 +89,7 @@
 #define		AT_XDMAC_CNDC_NDE		(0x1 << 0)		/* Channel x Next Descriptor Enable */
 #define		AT_XDMAC_CNDC_NDSUP		(0x1 << 1)		/* Channel x Next Descriptor Source Update */
 #define		AT_XDMAC_CNDC_NDDUP		(0x1 << 2)		/* Channel x Next Descriptor Destination Update */
+#define		AT_XDMAC_CNDC_NDVIEW_MASK	GENMASK(28, 27)
 #define		AT_XDMAC_CNDC_NDVIEW_NDV0	(0x0 << 3)		/* Channel x Next Descriptor View 0 */
 #define		AT_XDMAC_CNDC_NDVIEW_NDV1	(0x1 << 3)		/* Channel x Next Descriptor View 1 */
 #define		AT_XDMAC_CNDC_NDVIEW_NDV2	(0x2 << 3)		/* Channel x Next Descriptor View 2 */
@@ -353,7 +354,8 @@ static void at_xdmac_start_xfer(struct at_xdmac_chan *atchan,
 	 */
 	if (at_xdmac_chan_is_cyclic(atchan))
 		reg = AT_XDMAC_CNDC_NDVIEW_NDV1;
-	else if (first->lld.mbr_ubc & AT_XDMAC_MBR_UBC_NDV3)
+	else if ((first->lld.mbr_ubc &
+		  AT_XDMAC_CNDC_NDVIEW_MASK) == AT_XDMAC_MBR_UBC_NDV3)
 		reg = AT_XDMAC_CNDC_NDVIEW_NDV3;
 	else
 		reg = AT_XDMAC_CNDC_NDVIEW_NDV2;
-- 
GitLab


From 59b44f77601db14829214443930aef970f3d6fb6 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@microchip.com>
Date: Wed, 15 Dec 2021 13:01:13 +0200
Subject: [PATCH 3409/4878] dmaengine: at_xdmac: Fix at_xdmac_lld struct
 definition

commit 912f7c6f7fac273f40e621447cf17d14b50d6e5b upstream.

The hardware channel next descriptor view structure contains just
fields of 32 bits, while dma_addr_t can be of type u64 or u32
depending on CONFIG_ARCH_DMA_ADDR_T_64BIT. Force u32 to comply with
what the hardware expects.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20211215110115.191749-11-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/at_xdmac.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index b905f99bf8aab..90afba0b36fe9 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -221,15 +221,15 @@ struct at_xdmac {
 
 /* Linked List Descriptor */
 struct at_xdmac_lld {
-	dma_addr_t	mbr_nda;	/* Next Descriptor Member */
-	u32		mbr_ubc;	/* Microblock Control Member */
-	dma_addr_t	mbr_sa;		/* Source Address Member */
-	dma_addr_t	mbr_da;		/* Destination Address Member */
-	u32		mbr_cfg;	/* Configuration Register */
-	u32		mbr_bc;		/* Block Control Register */
-	u32		mbr_ds;		/* Data Stride Register */
-	u32		mbr_sus;	/* Source Microblock Stride Register */
-	u32		mbr_dus;	/* Destination Microblock Stride Register */
+	u32 mbr_nda;	/* Next Descriptor Member */
+	u32 mbr_ubc;	/* Microblock Control Member */
+	u32 mbr_sa;	/* Source Address Member */
+	u32 mbr_da;	/* Destination Address Member */
+	u32 mbr_cfg;	/* Configuration Register */
+	u32 mbr_bc;	/* Block Control Register */
+	u32 mbr_ds;	/* Data Stride Register */
+	u32 mbr_sus;	/* Source Microblock Stride Register */
+	u32 mbr_dus;	/* Destination Microblock Stride Register */
 };
 
 /* 64-bit alignment needed to update CNDA and CUBC registers in an atomic way. */
-- 
GitLab


From 2e51a761b7ab71458b50441f1357bb3dd60927c8 Mon Sep 17 00:00:00 2001
From: Zechuan Chen <chenzechuan1@huawei.com>
Date: Tue, 28 Dec 2021 19:13:38 +0800
Subject: [PATCH 3410/4878] perf probe: Fix ppc64 'perf probe add events
 failed' case

commit 4624f199327a704dd1069aca1c3cadb8f2a28c6f upstream.

Because of commit bf794bf52a80c627 ("powerpc/kprobes: Fix kallsyms
lookup across powerpc ABIv1 and ABIv2"), in ppc64 ABIv1, our perf
command eliminates the need to use the prefix "." at the symbol name.

But when the command "perf probe -a schedule" is executed on ppc64
ABIv1, it obtains two symbol address information through /proc/kallsyms,
for example:

  cat /proc/kallsyms | grep -w schedule
  c000000000657020 T .schedule
  c000000000d4fdb8 D schedule

The symbol "D schedule" is not a function symbol, and perf will print:
"p:probe/schedule _text+13958584"Failed to write event: Invalid argument

Therefore, when searching symbols from map and adding probe point for
them, a symbol type check is added. If the type of symbol is not a
function, skip it.

Fixes: bf794bf52a80c627 ("powerpc/kprobes: Fix kallsyms lookup across powerpc ABIv1 and ABIv2")
Signed-off-by: Zechuan Chen <chenzechuan1@huawei.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jianlin Lv <Jianlin.Lv@arm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20211228111338.218602-1-chenzechuan1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/probe-event.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 07db6cfad65b9..d103084fcd56c 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -3035,6 +3035,9 @@ static int find_probe_trace_events_from_map(struct perf_probe_event *pev,
 	for (j = 0; j < num_matched_functions; j++) {
 		sym = syms[j];
 
+		if (sym->type != STT_FUNC)
+			continue;
+
 		/* There can be duplicated symbols in the map */
 		for (i = 0; i < j; i++)
 			if (sym->start == syms[i]->start) {
-- 
GitLab


From f6d4c0e017ec34f6f356d34d93776575dc174b82 Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Sun, 28 Nov 2021 14:14:46 +0200
Subject: [PATCH 3411/4878] devlink: Remove misleading internal_flags from
 health reporter dump

commit e9538f8270db24d272659e15841854c7ea11119e upstream.

DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET command doesn't have .doit callback
and has no use in internal_flags at all. Remove this misleading assignment.

Fixes: e44ef4e4516c ("devlink: Hang reporter's dump method on a dumpit cb")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/devlink.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 442b67c044a9f..646d90f63dafc 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -7852,8 +7852,6 @@ static const struct genl_small_ops devlink_nl_ops[] = {
 			    GENL_DONT_VALIDATE_DUMP_STRICT,
 		.dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit,
 		.flags = GENL_ADMIN_PERM,
-		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT |
-				  DEVLINK_NL_FLAG_NO_LOCK,
 	},
 	{
 		.cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
-- 
GitLab


From 799730d182d1bc76216e45350b96eb09eeabcf94 Mon Sep 17 00:00:00 2001
From: David Heidelberg <david@ixit.cz>
Date: Sat, 30 Oct 2021 12:04:12 +0200
Subject: [PATCH 3412/4878] arm64: dts: qcom: msm8996: drop not documented
 adreno properties

commit c41910f257a22dc406c60d8826b4a3b5398003a3 upstream.

These properties aren't documented nor implemented in the driver.
Drop them.

Fixes warnings as:
$ make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/msm/gpu.yaml
...
arch/arm64/boot/dts/qcom/msm8996-mtp.dt.yaml: gpu@b00000: 'qcom,gpu-quirk-fault-detect-mask', 'qcom,gpu-quirk-two-pass-use-wfi' do not match any of the regexes: 'pinctrl-[0-9]+'
	From schema: Documentation/devicetree/bindings/display/msm/gpu.yaml
...

Fixes: 69cc3114ab0f ("arm64: dts: Add Adreno GPU definitions")
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211030100413.28370-1-david@ixit.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index eef17434d12ae..ef5d03a150693 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -645,9 +645,6 @@
 			nvmem-cells = <&gpu_speed_bin>;
 			nvmem-cell-names = "speed_bin";
 
-			qcom,gpu-quirk-two-pass-use-wfi;
-			qcom,gpu-quirk-fault-detect-mask;
-
 			operating-points-v2 = <&gpu_opp_table>;
 
 			gpu_opp_table: opp-table {
-- 
GitLab


From 20949c3816463e97c6f8fe84c0280c7e5ae83a8d Mon Sep 17 00:00:00 2001
From: Jie Wang <wangjie125@huawei.com>
Date: Wed, 12 Jan 2022 20:54:18 +0800
Subject: [PATCH 3413/4878] net: bonding: fix bond_xmit_broadcast return value
 error bug

commit 4e5bd03ae34652cd932ab4c91c71c511793df75c upstream.

In Linux bonding scenario, one packet is copied to several copies and sent
by all slave device of bond0 in mode 3(broadcast mode). The mode 3 xmit
function bond_xmit_broadcast() only ueses the last slave device's tx result
as the final result. In this case, if the last slave device is down, then
it always return NET_XMIT_DROP, even though the other slave devices xmit
success. It may cause the tx statistics error, and cause the application
(e.g. scp) consider the network is unreachable.

For example, use the following command to configure server A.

echo 3 > /sys/class/net/bond0/bonding/mode
ifconfig bond0 up
ifenslave bond0 eth0 eth1
ifconfig bond0 192.168.1.125
ifconfig eth0 up
ifconfig eth1 down
The slave device eth0 and eth1 are connected to server B(192.168.1.107).
Run the ping 192.168.1.107 -c 3 -i 0.2 command, the following information
is displayed.

PING 192.168.1.107 (192.168.1.107) 56(84) bytes of data.
64 bytes from 192.168.1.107: icmp_seq=1 ttl=64 time=0.077 ms
64 bytes from 192.168.1.107: icmp_seq=2 ttl=64 time=0.056 ms
64 bytes from 192.168.1.107: icmp_seq=3 ttl=64 time=0.051 ms

 192.168.1.107 ping statistics
0 packets transmitted, 3 received

Actually, the slave device eth0 of the bond successfully sends three
ICMP packets, but the result shows that 0 packets are transmitted.

Also if we use scp command to get remote files, the command end with the
following printings.

ssh_exchange_identification: read: Connection timed out

So this patch modifies the bond_xmit_broadcast to return NET_XMIT_SUCCESS
if one slave device in the bond sends packets successfully. If all slave
devices send packets fail, the discarded packets stats is increased. The
skb is released when there is no slave device in the bond or the last slave
device is down.

Fixes: ae46f184bc1f ("bonding: propagate transmit status")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/bonding/bond_main.c | 30 ++++++++++++++++++++++--------
 1 file changed, 22 insertions(+), 8 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e2e6a69adab4b..99770b1671923 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4562,25 +4562,39 @@ static netdev_tx_t bond_xmit_broadcast(struct sk_buff *skb,
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave = NULL;
 	struct list_head *iter;
+	bool xmit_suc = false;
+	bool skb_used = false;
 
 	bond_for_each_slave_rcu(bond, slave, iter) {
-		if (bond_is_last_slave(bond, slave))
-			break;
-		if (bond_slave_is_up(slave) && slave->link == BOND_LINK_UP) {
-			struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
+		struct sk_buff *skb2;
+
+		if (!(bond_slave_is_up(slave) && slave->link == BOND_LINK_UP))
+			continue;
 
+		if (bond_is_last_slave(bond, slave)) {
+			skb2 = skb;
+			skb_used = true;
+		} else {
+			skb2 = skb_clone(skb, GFP_ATOMIC);
 			if (!skb2) {
 				net_err_ratelimited("%s: Error: %s: skb_clone() failed\n",
 						    bond_dev->name, __func__);
 				continue;
 			}
-			bond_dev_queue_xmit(bond, skb2, slave->dev);
 		}
+
+		if (bond_dev_queue_xmit(bond, skb2, slave->dev) == NETDEV_TX_OK)
+			xmit_suc = true;
 	}
-	if (slave && bond_slave_is_up(slave) && slave->link == BOND_LINK_UP)
-		return bond_dev_queue_xmit(bond, skb, slave->dev);
 
-	return bond_tx_drop(bond_dev, skb);
+	if (!skb_used)
+		dev_kfree_skb_any(skb);
+
+	if (xmit_suc)
+		return NETDEV_TX_OK;
+
+	atomic_long_inc(&bond_dev->tx_dropped);
+	return NET_XMIT_DROP;
 }
 
 /*------------------------- Device initialization ---------------------------*/
-- 
GitLab


From 6973b38b9dbacda311c7663a9c297fa95033687a Mon Sep 17 00:00:00 2001
From: Kevin Bracey <kevin@bracey.fi>
Date: Wed, 12 Jan 2022 19:02:10 +0200
Subject: [PATCH 3414/4878] net_sched: restore "mpu xxx" handling

commit fb80445c438c78b40b547d12b8d56596ce4ccfeb upstream.

commit 56b765b79e9a ("htb: improved accuracy at high rates") broke
"overhead X", "linklayer atm" and "mpu X" attributes.

"overhead X" and "linklayer atm" have already been fixed. This restores
the "mpu X" handling, as might be used by DOCSIS or Ethernet shaping:

    tc class add ... htb rate X overhead 4 mpu 64

The code being fixed is used by htb, tbf and act_police. Cake has its
own mpu handling. qdisc_calculate_pkt_len still uses the size table
containing values adjusted for mpu by user space.

iproute2 tc has always passed mpu into the kernel via a tc_ratespec
structure, but the kernel never directly acted on it, merely stored it
so that it could be read back by `tc class show`.

Rather, tc would generate length-to-time tables that included the mpu
(and linklayer) in their construction, and the kernel used those tables.

Since v3.7, the tables were no longer used. Along with "mpu", this also
broke "overhead" and "linklayer" which were fixed in 01cb71d2d47b
("net_sched: restore "overhead xxx" handling", v3.10) and 8a8e3d84b171
("net_sched: restore "linklayer atm" handling", v3.11).

"overhead" was fixed by simply restoring use of tc_ratespec::overhead -
this had originally been used by the kernel but was initially omitted
from the new non-table-based calculations.

"linklayer" had been handled in the table like "mpu", but the mode was
not originally passed in tc_ratespec. The new implementation was made to
handle it by getting new versions of tc to pass the mode in an extended
tc_ratespec, and for older versions of tc the table contents were analysed
at load time to deduce linklayer.

As "mpu" has always been given to the kernel in tc_ratespec,
accompanying the mpu-based table, we can restore system functionality
with no userspace change by making the kernel act on the tc_ratespec
value.

Fixes: 56b765b79e9a ("htb: improved accuracy at high rates")
Signed-off-by: Kevin Bracey <kevin@bracey.fi>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Vimalkumar <j.vimal@gmail.com>
Link: https://lore.kernel.org/r/20220112170210.1014351-1-kevin@bracey.fi
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/sch_generic.h | 5 +++++
 net/sched/sch_generic.c   | 1 +
 2 files changed, 6 insertions(+)

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 9226a84dcc14d..1042c449e7db5 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -1261,6 +1261,7 @@ struct psched_ratecfg {
 	u64	rate_bytes_ps; /* bytes per second */
 	u32	mult;
 	u16	overhead;
+	u16	mpu;
 	u8	linklayer;
 	u8	shift;
 };
@@ -1270,6 +1271,9 @@ static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
 {
 	len += r->overhead;
 
+	if (len < r->mpu)
+		len = r->mpu;
+
 	if (unlikely(r->linklayer == TC_LINKLAYER_ATM))
 		return ((u64)(DIV_ROUND_UP(len,48)*53) * r->mult) >> r->shift;
 
@@ -1292,6 +1296,7 @@ static inline void psched_ratecfg_getrate(struct tc_ratespec *res,
 	res->rate = min_t(u64, r->rate_bytes_ps, ~0U);
 
 	res->overhead = r->overhead;
+	res->mpu = r->mpu;
 	res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
 }
 
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 6a9c1a39874a0..b5005abc84ec2 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1386,6 +1386,7 @@ void psched_ratecfg_precompute(struct psched_ratecfg *r,
 {
 	memset(r, 0, sizeof(*r));
 	r->overhead = conf->overhead;
+	r->mpu = conf->mpu;
 	r->rate_bytes_ps = max_t(u64, conf->rate, rate64);
 	r->linklayer = (conf->linklayer & TC_LINKLAYER_MASK);
 	r->mult = 1;
-- 
GitLab


From 4691c9f047a809693ac4efbc441e29b7dbb0cdca Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Thu, 13 Jan 2022 22:46:07 +0300
Subject: [PATCH 3415/4878] bcmgenet: add WOL IRQ check

commit 9deb48b53e7f4056c2eaa2dc2ee3338df619e4f6 upstream.

The driver neglects to check the result of platform_get_irq_optional()'s
call and blithely passes the negative error codes to devm_request_irq()
(which takes *unsigned* IRQ #), causing it to fail with -EINVAL.
Stop calling devm_request_irq() with the invalid IRQ #s.

Fixes: 8562056f267d ("net: bcmgenet: request Wake-on-LAN interrupt")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index db74241935ab4..e19cf020e5ae1 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3962,10 +3962,12 @@ static int bcmgenet_probe(struct platform_device *pdev)
 
 	/* Request the WOL interrupt and advertise suspend if available */
 	priv->wol_irq_disabled = true;
-	err = devm_request_irq(&pdev->dev, priv->wol_irq, bcmgenet_wol_isr, 0,
-			       dev->name, priv);
-	if (!err)
-		device_set_wakeup_capable(&pdev->dev, 1);
+	if (priv->wol_irq > 0) {
+		err = devm_request_irq(&pdev->dev, priv->wol_irq,
+				       bcmgenet_wol_isr, 0, dev->name, priv);
+		if (!err)
+			device_set_wakeup_capable(&pdev->dev, 1);
+	}
 
 	/* Set the needed headroom to account for any possible
 	 * features enabling/disabling at runtime
-- 
GitLab


From 819e76bc572e373db88956ddc219e9976b16a10f Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Sat, 15 Jan 2022 09:49:18 -0800
Subject: [PATCH 3416/4878] net: ethernet: mtk_eth_soc: fix error checking in
 mtk_mac_config()

commit 214b3369ab9b0a6f28d6c970220c209417edbc65 upstream.

Clang static analysis reports this problem
mtk_eth_soc.c:394:7: warning: Branch condition evaluates
  to a garbage value
                if (err)
                    ^~~

err is not initialized and only conditionally set.
So intitialize err.

Fixes: 7e538372694b ("net: ethernet: mediatek: Re-add support SGMII")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index a2d3f04a9ff22..7d7dc0754a3a1 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -215,7 +215,7 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
 					   phylink_config);
 	struct mtk_eth *eth = mac->hw;
 	u32 mcr_cur, mcr_new, sid, i;
-	int val, ge_mode, err;
+	int val, ge_mode, err = 0;
 
 	/* MT76x8 has no hardware settings between for the MAC */
 	if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) &&
-- 
GitLab


From ee64479c9ce62eedd1a2d5ab26d93aff58d68c19 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Mon, 17 Jan 2022 14:52:33 +0000
Subject: [PATCH 3417/4878] net: sfp: fix high power modules without diagnostic
 monitoring
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 5765cee119bf5a36c94d20eceb37c445508934be upstream.

Commit 7cfa9c92d0a3 ("net: sfp: avoid power switch on address-change
modules") unintetionally changed the semantics for high power modules
without the digital diagnostics monitoring. We repeatedly attempt to
read the power status from the non-existing 0xa2 address in a futile
hope this failure is temporary:

[    8.856051] sfp sfp-eth3: module NTT              0000000000000000 rev 0000  sn 0000000000000000 dc 160408
[    8.865843] mvpp2 f4000000.ethernet eth3: switched to inband/1000base-x link mode
[    8.873469] sfp sfp-eth3: Failed to read EEPROM: -5
[    8.983251] sfp sfp-eth3: Failed to read EEPROM: -5
[    9.103250] sfp sfp-eth3: Failed to read EEPROM: -5

We previosuly assumed such modules were powered up in the correct mode,
continuing without further configuration as long as the required power
class was supported by the host.

Restore this behaviour, while preserving the intent of subsequent
patches to avoid the "Address Change Sequence not supported" warning
if we are not going to be accessing the DDM address.

Fixes: 7cfa9c92d0a3 ("net: sfp: avoid power switch on address-change modules")
Reported-by: 照山周一郎 <teruyama@springboard-inc.jp>
Tested-by: 照山周一郎 <teruyama@springboard-inc.jp>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/sfp.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 32c34c728c7a1..efffa65f82143 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1589,17 +1589,20 @@ static int sfp_sm_probe_for_phy(struct sfp *sfp)
 static int sfp_module_parse_power(struct sfp *sfp)
 {
 	u32 power_mW = 1000;
+	bool supports_a2;
 
 	if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_POWER_DECL))
 		power_mW = 1500;
 	if (sfp->id.ext.options & cpu_to_be16(SFP_OPTIONS_HIGH_POWER_LEVEL))
 		power_mW = 2000;
 
+	supports_a2 = sfp->id.ext.sff8472_compliance !=
+				SFP_SFF8472_COMPLIANCE_NONE ||
+		      sfp->id.ext.diagmon & SFP_DIAGMON_DDM;
+
 	if (power_mW > sfp->max_power_mW) {
 		/* Module power specification exceeds the allowed maximum. */
-		if (sfp->id.ext.sff8472_compliance ==
-			SFP_SFF8472_COMPLIANCE_NONE &&
-		    !(sfp->id.ext.diagmon & SFP_DIAGMON_DDM)) {
+		if (!supports_a2) {
 			/* The module appears not to implement bus address
 			 * 0xa2, so assume that the module powers up in the
 			 * indicated mode.
@@ -1616,11 +1619,25 @@ static int sfp_module_parse_power(struct sfp *sfp)
 		}
 	}
 
+	if (power_mW <= 1000) {
+		/* Modules below 1W do not require a power change sequence */
+		sfp->module_power_mW = power_mW;
+		return 0;
+	}
+
+	if (!supports_a2) {
+		/* The module power level is below the host maximum and the
+		 * module appears not to implement bus address 0xa2, so assume
+		 * that the module powers up in the indicated mode.
+		 */
+		return 0;
+	}
+
 	/* If the module requires a higher power mode, but also requires
 	 * an address change sequence, warn the user that the module may
 	 * not be functional.
 	 */
-	if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE && power_mW > 1000) {
+	if (sfp->id.ext.diagmon & SFP_DIAGMON_ADDRMODE) {
 		dev_warn(sfp->dev,
 			 "Address Change Sequence not supported but module requires %u.%uW, module may not be functional\n",
 			 power_mW / 1000, (power_mW / 100) % 10);
-- 
GitLab


From 4496e4a427a03a73de818926946b4bf52579b95f Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Tue, 18 Jan 2022 05:41:10 -0800
Subject: [PATCH 3418/4878] net: mscc: ocelot: fix using match before it is set

commit baa59504c1cd0cca7d41954a45ee0b3dc78e41a0 upstream.

Clang static analysis reports this issue
ocelot_flower.c:563:8: warning: 1st function call argument
  is an uninitialized value
    !is_zero_ether_addr(match.mask->dst)) {
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The variable match is used before it is set.  So move the
block.

Fixes: 75944fda1dfe ("net: mscc: ocelot: offload ingress skbedit and vlan actions to VCAP IS1")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mscc/ocelot_flower.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c b/drivers/net/ethernet/mscc/ocelot_flower.c
index 3655503352928..217e8333de6c6 100644
--- a/drivers/net/ethernet/mscc/ocelot_flower.c
+++ b/drivers/net/ethernet/mscc/ocelot_flower.c
@@ -462,13 +462,6 @@ ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress,
 			return -EOPNOTSUPP;
 		}
 
-		if (filter->block_id == VCAP_IS1 &&
-		    !is_zero_ether_addr(match.mask->dst)) {
-			NL_SET_ERR_MSG_MOD(extack,
-					   "Key type S1_NORMAL cannot match on destination MAC");
-			return -EOPNOTSUPP;
-		}
-
 		/* The hw support mac matches only for MAC_ETYPE key,
 		 * therefore if other matches(port, tcp flags, etc) are added
 		 * then just bail out
@@ -483,6 +476,14 @@ ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress,
 			return -EOPNOTSUPP;
 
 		flow_rule_match_eth_addrs(rule, &match);
+
+		if (filter->block_id == VCAP_IS1 &&
+		    !is_zero_ether_addr(match.mask->dst)) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Key type S1_NORMAL cannot match on destination MAC");
+			return -EOPNOTSUPP;
+		}
+
 		filter->key_type = OCELOT_VCAP_KEY_ETYPE;
 		ether_addr_copy(filter->key.etype.dmac.value,
 				match.key->dst);
-- 
GitLab


From 66467cc87a353e4883af35b2d64ce0f6ac6e4bbb Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@mailbox.org>
Date: Thu, 23 Dec 2021 13:24:32 +0100
Subject: [PATCH 3419/4878] dt-bindings: display: meson-dw-hdmi: add missing
 sound-name-prefix property

commit 22bf4047d26980807611b7e2030803db375afd87 upstream.

This is used in meson-gx and meson-g12. Add the property to the binding.
This fixes the dtschema warning:
hdmi-tx@c883a000: 'sound-name-prefix' does not match any of the
regexes: 'pinctrl-[0-9]+'

Signed-off-by: Alexander Stein <alexander.stein@mailbox.org>
Fixes: 376bf52deef5 ("dt-bindings: display: amlogic, meson-dw-hdmi: convert to yaml")
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211223122434.39378-2-alexander.stein@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
index 0da42ab8fd3a5..8a67bb889f18a 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
@@ -10,6 +10,9 @@ title: Amlogic specific extensions to the Synopsys Designware HDMI Controller
 maintainers:
   - Neil Armstrong <narmstrong@baylibre.com>
 
+allOf:
+  - $ref: /schemas/sound/name-prefix.yaml#
+
 description: |
   The Amlogic Meson Synopsys Designware Integration is composed of
   - A Synopsys DesignWare HDMI Controller IP
@@ -99,6 +102,8 @@ properties:
   "#sound-dai-cells":
     const: 0
 
+  sound-name-prefix: true
+
 required:
   - compatible
   - reg
-- 
GitLab


From 23bcf3615be7fe43026848a5a437767bac6a4c1e Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@mailbox.org>
Date: Sun, 19 Dec 2021 10:41:55 +0100
Subject: [PATCH 3420/4878] dt-bindings: display: meson-vpu: Add missing
 amlogic,canvas property

commit 640f35b871d29cd685ce0ea0762636381beeb98a upstream.

This property was already mentioned in the old textual bindings
amlogic,meson-vpu.txt, but got dropped during conversion.
Adding it back similar to amlogic,gx-vdec.yaml.

Fixes: 6b9ebf1e0e67 ("dt-bindings: display: amlogic, meson-vpu: convert to yaml")
Signed-off-by: Alexander Stein <alexander.stein@mailbox.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211219094155.177206-1-alexander.stein@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/display/amlogic,meson-vpu.yaml      | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
index a8d202c9d004c..b8cb1b4dae1ff 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
@@ -78,6 +78,10 @@ properties:
   interrupts:
     maxItems: 1
 
+  amlogic,canvas:
+    description: should point to a canvas provider node
+    $ref: /schemas/types.yaml#/definitions/phandle
+
   power-domains:
     maxItems: 1
     description: phandle to the associated power domain
@@ -106,6 +110,7 @@ required:
   - port@1
   - "#address-cells"
   - "#size-cells"
+  - amlogic,canvas
 
 additionalProperties: false
 
@@ -118,6 +123,7 @@ examples:
         interrupts = <3>;
         #address-cells = <1>;
         #size-cells = <0>;
+        amlogic,canvas = <&canvas>;
 
         /* CVBS VDAC output port */
         port@0 {
-- 
GitLab


From 21513c4615575c0b1640ddeb2114242de4ddf58c Mon Sep 17 00:00:00 2001
From: Sam Protsenko <semen.protsenko@linaro.org>
Date: Sun, 21 Nov 2021 18:56:36 +0200
Subject: [PATCH 3421/4878] dt-bindings: watchdog: Require
 samsung,syscon-phandle for Exynos7

commit 33950f9a36aca55c2b1e6062d9b29f3e97f91c40 upstream.

Exynos7 watchdog driver is clearly indicating that its dts node must
define syscon phandle property. That was probably forgotten, so add it.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Fixes: 2b9366b66967 ("watchdog: s3c2410_wdt: Add support for Watchdog device on Exynos7")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211107202943.8859-2-semen.protsenko@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
index 76cb9586ee00c..93cd77a6e92c0 100644
--- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
@@ -39,8 +39,8 @@ properties:
   samsung,syscon-phandle:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
-      Phandle to the PMU system controller node (in case of Exynos5250
-      and Exynos5420).
+      Phandle to the PMU system controller node (in case of Exynos5250,
+      Exynos5420 and Exynos7).
 
 required:
   - compatible
@@ -58,6 +58,7 @@ allOf:
             enum:
               - samsung,exynos5250-wdt
               - samsung,exynos5420-wdt
+              - samsung,exynos7-wdt
     then:
       required:
         - samsung,syscon-phandle
-- 
GitLab


From 078b5a4498e066fdc9869366d8ffc4d01b1db1c8 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Date: Thu, 13 Jan 2022 09:19:18 +0100
Subject: [PATCH 3422/4878] scripts/dtc: dtx_diff: remove broken example from
 help text

commit d8adf5b92a9d2205620874d498c39923ecea8749 upstream.

dtx_diff suggests to use <(...) syntax to pipe two inputs into it, but
this has never worked: The /proc/self/fds/... paths passed by the shell
will fail the `[ -f "${dtx}" ] && [ -r "${dtx}" ]` check in compile_to_dts,
but even with this check removed, the function cannot work: hexdump will
eat up the DTB magic, making the subsequent dtc call fail, as a pipe
cannot be rewound.

Simply remove this broken example, as there is already an alternative one
that works fine.

Fixes: 10eadc253ddf ("dtc: create tool to diff device trees")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220113081918.10387-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/dtc/dtx_diff | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/scripts/dtc/dtx_diff b/scripts/dtc/dtx_diff
index d3422ee15e300..f2bbde4bba86b 100755
--- a/scripts/dtc/dtx_diff
+++ b/scripts/dtc/dtx_diff
@@ -59,12 +59,8 @@ Otherwise DTx is treated as a dts source file (aka .dts).
    or '/include/' to be processed.
 
    If DTx_1 and DTx_2 are in different architectures, then this script
-   may not work since \${ARCH} is part of the include path.  Two possible
-   workarounds:
-
-      `basename $0` \\
-          <(ARCH=arch_of_dtx_1 `basename $0` DTx_1) \\
-          <(ARCH=arch_of_dtx_2 `basename $0` DTx_2)
+   may not work since \${ARCH} is part of the include path.  The following
+   workaround can be used:
 
       `basename $0` ARCH=arch_of_dtx_1 DTx_1 >tmp_dtx_1.dts
       `basename $0` ARCH=arch_of_dtx_2 DTx_2 >tmp_dtx_2.dts
-- 
GitLab


From 33bb7f027b069530110ec533829e65f22db8c8ff Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 14 Jan 2022 06:57:24 +0000
Subject: [PATCH 3423/4878] lib82596: Fix IRQ check in sni_82596_probe

commit 99218cbf81bf21355a3de61cd46a706d36e900e6 upstream.

platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:

    int irq = platform_get_irq(pdev, 0);
    if (irq < 0)
        return irq;

Fix the check of return value to catch errors correctly.

Fixes: 115978859272 ("i825xx: Move the Intel 82586/82593/82596 based drivers")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/i825xx/sni_82596.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/i825xx/sni_82596.c b/drivers/net/ethernet/i825xx/sni_82596.c
index 27937c5d79567..daec9ce04531b 100644
--- a/drivers/net/ethernet/i825xx/sni_82596.c
+++ b/drivers/net/ethernet/i825xx/sni_82596.c
@@ -117,9 +117,10 @@ static int sni_82596_probe(struct platform_device *dev)
 	netdevice->dev_addr[5] = readb(eth_addr + 0x06);
 	iounmap(eth_addr);
 
-	if (!netdevice->irq) {
+	if (netdevice->irq < 0) {
 		printk(KERN_ERR "%s: IRQ not found for i82596 at 0x%lx\n",
 			__FILE__, netdevice->base_addr);
+		retval = netdevice->irq;
 		goto probe_failed;
 	}
 
-- 
GitLab


From 62925037005243c57067a5b81764a0c0ca93d580 Mon Sep 17 00:00:00 2001
From: Alistair Popple <apopple@nvidia.com>
Date: Fri, 14 Jan 2022 14:09:31 -0800
Subject: [PATCH 3424/4878] mm/hmm.c: allow VM_MIXEDMAP to work with
 hmm_range_fault

commit 87c01d57fa23de82fff593a7d070933d08755801 upstream.

hmm_range_fault() can be used instead of get_user_pages() for devices
which allow faulting however unlike get_user_pages() it will return an
error when used on a VM_MIXEDMAP range.

To make hmm_range_fault() more closely match get_user_pages() remove
this restriction.  This requires dealing with the !ARCH_HAS_PTE_SPECIAL
case in hmm_vma_handle_pte().  Rather than replicating the logic of
vm_normal_page() call it directly and do a check for the zero pfn
similar to what get_user_pages() currently does.

Also add a test to hmm selftest to verify functionality.

Link: https://lkml.kernel.org/r/20211104012001.2555676-1-apopple@nvidia.com
Fixes: da4c3c735ea4 ("mm/hmm/mirror: helper to snapshot CPU page table")
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 lib/test_hmm.c                         | 24 +++++++++++++++
 mm/hmm.c                               |  5 +--
 tools/testing/selftests/vm/hmm-tests.c | 42 ++++++++++++++++++++++++++
 3 files changed, 69 insertions(+), 2 deletions(-)

diff --git a/lib/test_hmm.c b/lib/test_hmm.c
index 80a78877bd939..a85613068d601 100644
--- a/lib/test_hmm.c
+++ b/lib/test_hmm.c
@@ -965,9 +965,33 @@ static long dmirror_fops_unlocked_ioctl(struct file *filp,
 	return 0;
 }
 
+static int dmirror_fops_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	unsigned long addr;
+
+	for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
+		struct page *page;
+		int ret;
+
+		page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+		if (!page)
+			return -ENOMEM;
+
+		ret = vm_insert_page(vma, addr, page);
+		if (ret) {
+			__free_page(page);
+			return ret;
+		}
+		put_page(page);
+	}
+
+	return 0;
+}
+
 static const struct file_operations dmirror_fops = {
 	.open		= dmirror_fops_open,
 	.release	= dmirror_fops_release,
+	.mmap		= dmirror_fops_mmap,
 	.unlocked_ioctl = dmirror_fops_unlocked_ioctl,
 	.llseek		= default_llseek,
 	.owner		= THIS_MODULE,
diff --git a/mm/hmm.c b/mm/hmm.c
index fb617054f9631..cbe9d0c666504 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -296,7 +296,8 @@ static int hmm_vma_handle_pte(struct mm_walk *walk, unsigned long addr,
 	 * Since each architecture defines a struct page for the zero page, just
 	 * fall through and treat it like a normal page.
 	 */
-	if (pte_special(pte) && !pte_devmap(pte) &&
+	if (!vm_normal_page(walk->vma, addr, pte) &&
+	    !pte_devmap(pte) &&
 	    !is_zero_pfn(pte_pfn(pte))) {
 		if (hmm_pte_need_fault(hmm_vma_walk, pfn_req_flags, 0)) {
 			pte_unmap(ptep);
@@ -514,7 +515,7 @@ static int hmm_vma_walk_test(unsigned long start, unsigned long end,
 	struct hmm_range *range = hmm_vma_walk->range;
 	struct vm_area_struct *vma = walk->vma;
 
-	if (!(vma->vm_flags & (VM_IO | VM_PFNMAP | VM_MIXEDMAP)) &&
+	if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)) &&
 	    vma->vm_flags & VM_READ)
 		return 0;
 
diff --git a/tools/testing/selftests/vm/hmm-tests.c b/tools/testing/selftests/vm/hmm-tests.c
index c9404ef9698e2..426dccc08f906 100644
--- a/tools/testing/selftests/vm/hmm-tests.c
+++ b/tools/testing/selftests/vm/hmm-tests.c
@@ -1242,6 +1242,48 @@ TEST_F(hmm, anon_teardown)
 	}
 }
 
+/*
+ * Test memory snapshot without faulting in pages accessed by the device.
+ */
+TEST_F(hmm, mixedmap)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned char *m;
+	int ret;
+
+	npages = 1;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(npages);
+	ASSERT_NE(buffer->mirror, NULL);
+
+
+	/* Reserve a range of addresses. */
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE,
+			   self->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Simulate a device snapshotting CPU pagetables. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device saw. */
+	m = buffer->mirror;
+	ASSERT_EQ(m[0], HMM_DMIRROR_PROT_READ);
+
+	hmm_buffer_free(buffer);
+}
+
 /*
  * Test memory snapshot without faulting in pages accessed by the device.
  */
-- 
GitLab


From 8104e589fa4aeb2f472ca02a8702070a00f14854 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Wed, 19 Jan 2022 18:09:28 -0800
Subject: [PATCH 3425/4878] lib/test_meminit: destroy cache in
 kmem_cache_alloc_bulk() test

commit e073e5ef90298d2d6e5e7f04b545a0815e92110c upstream.

Make do_kmem_cache_size_bulk() destroy the cache it creates.

Link: https://lkml.kernel.org/r/aced20a94bf04159a139f0846e41d38a1537debb.1640018297.git.andreyknvl@google.com
Fixes: 03a9349ac0e0 ("lib/test_meminit: add a kmem_cache_alloc_bulk() test")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 lib/test_meminit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/test_meminit.c b/lib/test_meminit.c
index e4f706a404b3a..3ca717f113977 100644
--- a/lib/test_meminit.c
+++ b/lib/test_meminit.c
@@ -337,6 +337,7 @@ static int __init do_kmem_cache_size_bulk(int size, int *total_failures)
 		if (num)
 			kmem_cache_free_bulk(c, num, objects);
 	}
+	kmem_cache_destroy(c);
 	*total_failures += fail;
 	return 1;
 }
-- 
GitLab


From 25b1a6d330399e9d5f814b70523c55aebd3cb4a1 Mon Sep 17 00:00:00 2001
From: "Doyle, Patrick" <pdoyle@irobot.com>
Date: Tue, 6 Apr 2021 10:47:08 +0900
Subject: [PATCH 3426/4878] mtd: nand: bbt: Fix corner case in bad block table
 handling

commit fd0d8d85f7230052e638a56d1bfea170c488e6bc upstream.

In the unlikely event that both blocks 10 and 11 are marked as bad (on a
32 bit machine), then the process of marking block 10 as bad stomps on
cached entry for block 11.  There are (of course) other examples.

Signed-off-by: Patrick Doyle <pdoyle@irobot.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
[<miquel.raynal@bootlin.com>: Fixed the title]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/linux-mtd/774a92693f311e7de01e5935e720a179fb1b2468.1616635406.git.ytc-mb-yfuruyama7@kioxia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/bbt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/bbt.c b/drivers/mtd/nand/bbt.c
index 044adf9138546..64af6898131d6 100644
--- a/drivers/mtd/nand/bbt.c
+++ b/drivers/mtd/nand/bbt.c
@@ -123,7 +123,7 @@ int nanddev_bbt_set_block_status(struct nand_device *nand, unsigned int entry,
 		unsigned int rbits = bits_per_block + offs - BITS_PER_LONG;
 
 		pos[1] &= ~GENMASK(rbits - 1, 0);
-		pos[1] |= val >> rbits;
+		pos[1] |= val >> (bits_per_block - rbits);
 	}
 
 	return 0;
-- 
GitLab


From 15ce9329a532e7d01d711fee0baeea2bba0abd40 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@denx.de>
Date: Wed, 24 Nov 2021 10:10:47 -0300
Subject: [PATCH 3427/4878] ath10k: Fix the MTU size on QCA9377 SDIO

commit 09b8cd69edcf2be04a781e1781e98e52a775c9ad upstream.

On an imx6dl-pico-pi board with a QCA9377 SDIO chip, simply trying to
connect via ssh to another machine causes:

[   55.824159] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
[   55.832169] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
[   55.838529] ath10k_sdio mmc1:0001:1: failed to push frame: -12
[   55.905863] ath10k_sdio mmc1:0001:1: failed to transmit packet, dropping: -12
[   55.913650] ath10k_sdio mmc1:0001:1: failed to submit frame: -12
[   55.919887] ath10k_sdio mmc1:0001:1: failed to push frame: -12

, leading to an ssh connection failure.

One user inspected the size of frames on Wireshark and reported
the followig:

"I was able to narrow the issue down to the mtu. If I set the mtu for
the wlan0 device to 1486 instead of 1500, the issue does not happen.

The size of frames that I see on Wireshark is exactly 1500 after
setting it to 1486."

Clearing the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE avoids the problem and
the ssh command works successfully after that.

Introduce a 'credit_size_workaround' field to ath10k_hw_params for
the QCA9377 SDIO, so that the HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE
is not set in this case.

Tested with QCA9377 SDIO with firmware WLAN.TF.1.1.1-00061-QCATFSWPZ-1.

Fixes: 2f918ea98606 ("ath10k: enable alt data of TX path for sdio")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20211124131047.713756-1-festevam@denx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath10k/core.c | 19 ++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/hw.h   |  3 +++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index d73ad60b571c2..d0967bb1f3871 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -89,6 +89,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = true,
 	},
 	{
@@ -123,6 +124,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = true,
 	},
 	{
@@ -158,6 +160,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -187,6 +190,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.num_wds_entries = 0x20,
 		.uart_pin_workaround = true,
 		.tx_stats_over_pktlog = false,
+		.credit_size_workaround = false,
 		.bmi_large_size_download = true,
 		.supports_peer_stats_info = true,
 	},
@@ -222,6 +226,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -256,6 +261,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -290,6 +296,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -327,6 +334,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = true,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 		.supports_peer_stats_info = true,
 	},
@@ -368,6 +376,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -415,6 +424,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -459,6 +469,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -493,6 +504,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -529,6 +541,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = true,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -557,6 +570,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.ast_skid_limit = 0x10,
 		.num_wds_entries = 0x20,
 		.uart_pin_workaround = true,
+		.credit_size_workaround = true,
 	},
 	{
 		.id = QCA4019_HW_1_0_DEV_VERSION,
@@ -597,6 +611,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = false,
 		.hw_filter_reset_required = true,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 	{
@@ -624,6 +639,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		.rri_on_ddr = true,
 		.hw_filter_reset_required = false,
 		.fw_diag_ce_download = false,
+		.credit_size_workaround = false,
 		.tx_stats_over_pktlog = false,
 	},
 };
@@ -697,6 +713,7 @@ static void ath10k_send_suspend_complete(struct ath10k *ar)
 
 static int ath10k_init_sdio(struct ath10k *ar, enum ath10k_firmware_mode mode)
 {
+	bool mtu_workaround = ar->hw_params.credit_size_workaround;
 	int ret;
 	u32 param = 0;
 
@@ -714,7 +731,7 @@ static int ath10k_init_sdio(struct ath10k *ar, enum ath10k_firmware_mode mode)
 
 	param |= HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET;
 
-	if (mode == ATH10K_FIRMWARE_MODE_NORMAL)
+	if (mode == ATH10K_FIRMWARE_MODE_NORMAL && !mtu_workaround)
 		param |= HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE;
 	else
 		param &= ~HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE;
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index c6ded21f5ed69..d3ef83ad577da 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -618,6 +618,9 @@ struct ath10k_hw_params {
 	 */
 	bool uart_pin_workaround;
 
+	/* Workaround for the credit size calculation */
+	bool credit_size_workaround;
+
 	/* tx stats support over pktlog */
 	bool tx_stats_over_pktlog;
 
-- 
GitLab


From 133cef0b6154cf71202462bb2738dbadd62b8198 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@kernel.org>
Date: Mon, 3 Jan 2022 22:01:57 +0100
Subject: [PATCH 3428/4878] scripts: sphinx-pre-install: add required ctex
 dependency

commit 7baab965896eaeea60a54b8fe742feea2f79060f upstream.

After a change meant to fix support for oriental characters
(Chinese, Japanese, Korean), ctex stylesheet is now a requirement
for PDF output.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Link: https://lore.kernel.org/r/165aa6167f21e3892a6e308688c93c756e94f4e0.1641243581.git.mchehab@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/sphinx-pre-install | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index 828a8615a9181..eb1cc35dac20a 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -76,6 +76,7 @@ my %texlive = (
 	'ucs.sty'            => 'texlive-ucs',
 	'upquote.sty'        => 'texlive-upquote',
 	'wrapfig.sty'        => 'texlive-wrapfig',
+	'ctexhook.sty'       => 'texlive-ctex',
 );
 
 #
-- 
GitLab


From c76c132444df46992f112553e45a64015bfc1269 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@kernel.org>
Date: Thu, 6 Jan 2022 01:41:02 +0100
Subject: [PATCH 3429/4878] scripts: sphinx-pre-install: Fix ctex support on
 Debian

commit 87d6576ddf8ac25f36597bc93ca17f6628289c16 upstream.

The name of the package with ctexhook.sty is different on
Debian/Ubuntu.

Reported-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/63882425609a2820fac78f5e94620abeb7ed5f6f.1641429634.git.mchehab@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/sphinx-pre-install | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index eb1cc35dac20a..8fcea769d44f5 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -371,6 +371,9 @@ sub give_debian_hints()
 	);
 
 	if ($pdf) {
+		check_missing_file(["/usr/share/texlive/texmf-dist/tex/latex/ctex/ctexhook.sty"],
+				   "texlive-lang-chinese", 2);
+
 		check_missing_file(["/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"],
 				   "fonts-dejavu", 2);
 
-- 
GitLab


From c525532e4f872078206789f5bcd12bba7f689780 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 27 Jan 2022 10:54:36 +0100
Subject: [PATCH 3430/4878] Linux 5.10.94

Link: https://lore.kernel.org/r/20220124184024.407936072@linuxfoundation.org
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Link: https://lore.kernel.org/r/20220125155348.141138434@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Allen Pais <apais@linux.microsoft.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 993559750df9d..1071ec486aa5b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 93
+SUBLEVEL = 94
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From c995d4a63c4328c39f9bc78bdd659e58b4bf5948 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 19 Jan 2022 17:21:22 +0000
Subject: [PATCH 3431/4878] ANDROID: ABI: Update the generic symbol list

Bug: 207662659
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I6c910d855efde4be1a26ff064bcdc94b07bd668e
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 6d47dd7f51624..503e6f13f02b6 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1542,6 +1542,7 @@
   proc_mkdir
   proc_mkdir_data
   proc_remove
+  proc_set_size
   proto_register
   proto_unregister
   pskb_expand_head
-- 
GitLab


From 7edc8bc69d7def26c4528360c9ec96dbeadcd0a1 Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Thu, 27 Jan 2022 13:48:21 +0800
Subject: [PATCH 3432/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211546634
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: I20511d8a34575ad02371ea66acc39f417bfb647e
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 503e6f13f02b6..ad193232d6922 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -503,6 +503,7 @@
   disk_end_io_acct
   disk_start_io_acct
   dma_alloc_attrs
+  dma_alloc_noncoherent
   dma_async_device_register
   dma_async_device_unregister
   dma_async_tx_descriptor_init
@@ -538,6 +539,7 @@
   dma_fence_signal
   dma_fence_signal_locked
   dma_free_attrs
+  dma_free_noncoherent
   dma_get_sgtable_attrs
   dma_get_slave_caps
   dma_get_slave_channel
-- 
GitLab


From 112e6b4f251d809218b17863fb5f046b0d94b198 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 26 Jan 2022 23:42:33 +0000
Subject: [PATCH 3433/4878] Revert "FROMLIST: dt-bindings: reserved-memory:
 Open Profile for DICE"

This reverts commit 3d914125b2487266b27370d8c8ea3eb9b0d6836b.
It will be replaced with the latest patch set version from upstream.

Bug: 198197082
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I8d9bc9dd059d316e5bc7ffbd0bb9a8a61fa770eb
---
 .../reserved-memory/google,open-dice.yaml     | 45 -------------------
 1 file changed, 45 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml

diff --git a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
deleted file mode 100644
index 345c4dc172c08..0000000000000
--- a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
+++ /dev/null
@@ -1,45 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/reserved-memory/google,open-dice.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Open Profile for DICE Device Tree Bindings
-
-description: |
-  This binding represents a reserved memory region containing data
-  generated by the Open Profile for DICE protocol.
-
-  See https://pigweed.googlesource.com/open-dice/
-
-maintainers:
-  - David Brazdil <dbrazdil@google.com>
-
-allOf:
-  - $ref: "reserved-memory.yaml"
-
-properties:
-  compatible:
-    const: google,open-dice
-
-  reg:
-    description: page-aligned region of memory containing DICE data
-
-required:
-  - compatible
-  - reg
-
-unevaluatedProperties: false
-
-examples:
-  - |
-    reserved-memory {
-        #address-cells = <2>;
-        #size-cells = <1>;
-
-        dice: dice@12340000 {
-            compatible = "google,open-dice";
-            reg = <0x00 0x12340000 0x2000>;
-            no-map;
-        };
-    };
-- 
GitLab


From b2bdc0a19c4189ac4032e42ace9ef90cec3fa2ff Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 26 Jan 2022 23:43:30 +0000
Subject: [PATCH 3434/4878] Revert "BACKPORT: FROMLIST: misc: open-dice: Add
 driver to expose DICE data to userspace"

This reverts commit d1109f05c395c2a0401e12f72acb1f976ef94578.
It will be replaced with the latest patch set version from upstream.

Bug: 198197082
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I661f1bc06d336e5eaab9e52affeb273a0ad6fc2f
---
 drivers/misc/Kconfig     |  12 ---
 drivers/misc/Makefile    |   1 -
 drivers/misc/open-dice.c | 188 ---------------------------------------
 drivers/of/platform.c    |   1 -
 4 files changed, 202 deletions(-)
 delete mode 100644 drivers/misc/open-dice.c

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2b9572a6d114b..2c8929a441220 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -481,18 +481,6 @@ config HISI_HIKEY_USB
 	  switching between the dual-role USB-C port and the USB-A host ports
 	  using only one USB controller.
 
-config OPEN_DICE
-	tristate "Open Profile for DICE driver"
-	depends on OF_RESERVED_MEM
-	help
-	  This driver exposes a DICE reserved memory region to userspace via
-	  a character device. The memory region contains Compound Device
-	  Identifiers (CDIs) generated by firmware as an output of DICE
-	  measured boot flow. Userspace can use CDIs for remote attestation
-	  and sealing.
-
-	  If unsure, say N.
-
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 2ec634354cf55..aecaaed87a357 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -58,4 +58,3 @@ obj-$(CONFIG_UACCE)		+= uacce/
 obj-$(CONFIG_XILINX_SDFEC)	+= xilinx_sdfec.o
 obj-$(CONFIG_HISI_HIKEY_USB)	+= hisi_hikey_usb.o
 obj-$(CONFIG_UID_SYS_STATS)	+= uid_sys_stats.o
-obj-$(CONFIG_OPEN_DICE)		+= open-dice.o
diff --git a/drivers/misc/open-dice.c b/drivers/misc/open-dice.c
deleted file mode 100644
index f1819f9511737..0000000000000
--- a/drivers/misc/open-dice.c
+++ /dev/null
@@ -1,188 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2021 - Google LLC
- * Author: David Brazdil <dbrazdil@google.com>
- *
- * Driver for Open Profile for DICE.
- *
- * This driver takes ownership of a reserved memory region containing data
- * generated by the Open Profile for DICE measured boot protocol. The memory
- * contents are not interpreted by the kernel but can be mapped into a userspace
- * process via a misc device. Userspace can also request a wipe of the memory.
- *
- * Userspace can access the data with (w/o error handling):
- *
- *     fd = open("/dev/open-dice0", O_RDWR);
- *     read(fd, &size, sizeof(unsigned long));
- *     data = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
- *     write(fd, NULL, 0); // wipe
- *     close(fd);
- */
-
-#include <linux/io.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/of_reserved_mem.h>
-#include <linux/platform_device.h>
-
-#define DRIVER_NAME "open-dice"
-
-struct open_dice_drvdata {
-	spinlock_t lock;
-	char name[16];
-	struct reserved_mem *rmem;
-	struct miscdevice misc;
-};
-
-static inline struct open_dice_drvdata *to_open_dice_drvdata(struct file *filp)
-{
-	return container_of(filp->private_data, struct open_dice_drvdata, misc);
-}
-
-static int open_dice_wipe(struct open_dice_drvdata *drvdata)
-{
-	void *kaddr;
-
-	spin_lock(&drvdata->lock);
-	kaddr = devm_memremap(drvdata->misc.this_device, drvdata->rmem->base,
-			      drvdata->rmem->size, MEMREMAP_WC);
-	if (IS_ERR(kaddr)) {
-		spin_unlock(&drvdata->lock);
-		return PTR_ERR(kaddr);
-	}
-
-	memset(kaddr, 0, drvdata->rmem->size);
-	devm_memunmap(drvdata->misc.this_device, kaddr);
-	spin_unlock(&drvdata->lock);
-	return 0;
-}
-
-/*
- * Copies the size of the reserved memory region to the user-provided buffer.
- */
-static ssize_t open_dice_read(struct file *filp, char __user *ptr, size_t len,
-			      loff_t *off)
-{
-	unsigned long val = to_open_dice_drvdata(filp)->rmem->size;
-
-	return simple_read_from_buffer(ptr, len, off, &val, sizeof(val));
-}
-
-/*
- * Triggers a wipe of the reserved memory region. The user-provided pointer
- * is never dereferenced.
- */
-static ssize_t open_dice_write(struct file *filp, const char __user *ptr,
-			       size_t len, loff_t *off)
-{
-	if (open_dice_wipe(to_open_dice_drvdata(filp)))
-		return -EIO;
-
-	/* Consume the input buffer. */
-	return len;
-}
-
-/*
- * Creates a mapping of the reserved memory region in user address space.
- */
-static int open_dice_mmap(struct file *filp, struct vm_area_struct *vma)
-{
-	struct open_dice_drvdata *drvdata = to_open_dice_drvdata(filp);
-
-	/* Do not allow userspace to modify the underlying data. */
-	if ((vma->vm_flags & VM_WRITE) && (vma->vm_flags & VM_SHARED))
-		return -EPERM;
-
-	/* Create write-combine mapping so all clients observe a wipe. */
-	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
-	vma->vm_flags |= VM_DONTCOPY | VM_DONTDUMP;
-	return vm_iomap_memory(vma, drvdata->rmem->base, drvdata->rmem->size);
-}
-
-static const struct file_operations open_dice_fops = {
-	.owner = THIS_MODULE,
-	.read = open_dice_read,
-	.write = open_dice_write,
-	.mmap = open_dice_mmap,
-};
-
-static int __init open_dice_probe(struct platform_device *pdev)
-{
-	static unsigned int dev_idx;
-	struct device *dev = &pdev->dev;
-	struct reserved_mem *rmem;
-	struct open_dice_drvdata *drvdata;
-	int ret;
-
-	rmem = of_reserved_mem_lookup(dev->of_node);
-	if (!rmem) {
-		dev_err(dev, "failed to lookup reserved memory\n");
-		return -EINVAL;
-	}
-
-	if (!rmem->size || (rmem->size > ULONG_MAX)) {
-		dev_err(dev, "invalid memory region size\n");
-		return -EINVAL;
-	}
-
-	if (!PAGE_ALIGNED(rmem->base) || !PAGE_ALIGNED(rmem->size)) {
-		dev_err(dev, "memory region must be page-aligned\n");
-		return -EINVAL;
-	}
-
-	drvdata = devm_kmalloc(dev, sizeof(*drvdata), GFP_KERNEL);
-	if (!drvdata)
-		return -ENOMEM;
-
-	*drvdata = (struct open_dice_drvdata){
-		.lock = __SPIN_LOCK_UNLOCKED(drvdata->lock),
-		.rmem = rmem,
-		.misc = (struct miscdevice){
-			.parent	= dev,
-			.name	= drvdata->name,
-			.minor	= MISC_DYNAMIC_MINOR,
-			.fops	= &open_dice_fops,
-			.mode	= 0600,
-		},
-	};
-
-	/* Index overflow check not needed, misc_register() will fail. */
-	snprintf(drvdata->name, sizeof(drvdata->name), DRIVER_NAME"%u", dev_idx++);
-
-	ret = misc_register(&drvdata->misc);
-	if (ret) {
-		dev_err(dev, "failed to register misc device '%s': %d\n",
-			drvdata->name, ret);
-		return ret;
-	}
-
-	platform_set_drvdata(pdev, drvdata);
-	return 0;
-}
-
-static int open_dice_remove(struct platform_device *pdev)
-{
-	struct open_dice_drvdata *drvdata = platform_get_drvdata(pdev);
-
-	misc_deregister(&drvdata->misc);
-	return 0;
-}
-
-static const struct of_device_id open_dice_of_match[] = {
-	{ .compatible = "google,open-dice" },
-	{},
-};
-
-static struct platform_driver open_dice_driver = {
-	.remove = open_dice_remove,
-	.driver = {
-		.name = DRIVER_NAME,
-		.of_match_table = open_dice_of_match,
-	},
-};
-
-module_platform_driver_probe(open_dice_driver, open_dice_probe);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("David Brazdil <dbrazdil@google.com>");
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index eb26896ee4c7a..79bd5f5a1bf17 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -511,7 +511,6 @@ static const struct of_device_id reserved_mem_matches[] = {
 	{ .compatible = "qcom,rmtfs-mem" },
 	{ .compatible = "qcom,cmd-db" },
 	{ .compatible = "ramoops" },
-	{ .compatible = "google,open-dice" },
 	{}
 };
 
-- 
GitLab


From d2ee879f4039595a3bc2e47c25b5b28715389739 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 26 Jan 2022 23:12:36 +0000
Subject: [PATCH 3435/4878] FROMLIST: dt-bindings: reserved-memory: Open
 Profile for DICE

Add DeviceTree bindings for Open Profile for DICE, an open protocol for
measured boot. Firmware uses DICE to measure the hardware/software
combination and generates Compound Device Identifier (CDI) certificates.
These are stored in memory and the buffer is described in the DT as
a reserved memory region compatible with 'google,open-dice'.

'no-map' is required to ensure the memory region is never treated by
the kernel as system memory.

Bug: 198197082
Signed-off-by: David Brazdil <dbrazdil@google.com>
Link: https://lore.kernel.org/r/20220126231237.529308-2-dbrazdil@google.com
Change-Id: I6da35b90ca2f519408f96edf3999ffb257cf72e8
---
 .../reserved-memory/google,open-dice.yaml     | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml

diff --git a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
new file mode 100644
index 0000000000000..257a0b51994a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reserved-memory/google,open-dice.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Open Profile for DICE Device Tree Bindings
+
+description: |
+  This binding represents a reserved memory region containing data
+  generated by the Open Profile for DICE protocol.
+
+  See https://pigweed.googlesource.com/open-dice/
+
+maintainers:
+  - David Brazdil <dbrazdil@google.com>
+
+allOf:
+  - $ref: "reserved-memory.yaml"
+
+properties:
+  compatible:
+    const: google,open-dice
+
+  reg:
+    description: page-aligned region of memory containing DICE data
+
+required:
+  - compatible
+  - reg
+  - no-map
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    reserved-memory {
+        #address-cells = <2>;
+        #size-cells = <1>;
+
+        dice: dice@12340000 {
+            compatible = "google,open-dice";
+            reg = <0x00 0x12340000 0x2000>;
+            no-map;
+        };
+    };
-- 
GitLab


From 51fe598af985abc7e39136a0929aecf2300f3636 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 26 Jan 2022 23:12:37 +0000
Subject: [PATCH 3436/4878] BACKPORT: FROMLIST: misc: open-dice: Add driver to
 expose DICE data to userspace

Open Profile for DICE is an open protocol for measured boot compatible
with the Trusted Computing Group's Device Identifier Composition
Engine (DICE) specification. The generated Compound Device Identifier
(CDI) certificates represent the hardware/software combination measured
by DICE, and can be used for remote attestation and sealing.

Add a driver that exposes reserved memory regions populated by firmware
with DICE CDIs and exposes them to userspace via a character device.

Userspace obtains the memory region's size from read() and calls mmap()
to create a mapping of the memory region in its address space. The
mapping is not allowed to be write+shared, giving userspace a guarantee
that the data were not overwritten by another process.

Userspace can also call write(), which triggers a wipe of the DICE data
by the driver. Because both the kernel and userspace mappings use
write-combine semantics, all clients observe the memory as zeroed after
the syscall has returned.

Acked-by: Rob Herring <robh@kernel.org>
Cc: Andrew Scull <ascull@google.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: David Brazdil <dbrazdil@google.com>
Link: https://lore.kernel.org/r/20220126231237.529308-3-dbrazdil@google.com
[dbrazdil@: Fixed context conflicts in reserved_mem_matches[] and Makefile]
Bug: 198197082
Change-Id: Iabd65f4d20036bb452e4103c7722f220c2273c81
---
 drivers/misc/Kconfig     |  12 +++
 drivers/misc/Makefile    |   1 +
 drivers/misc/open-dice.c | 208 +++++++++++++++++++++++++++++++++++++++
 drivers/of/platform.c    |   1 +
 4 files changed, 222 insertions(+)
 create mode 100644 drivers/misc/open-dice.c

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 2c8929a441220..2b9572a6d114b 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -481,6 +481,18 @@ config HISI_HIKEY_USB
 	  switching between the dual-role USB-C port and the USB-A host ports
 	  using only one USB controller.
 
+config OPEN_DICE
+	tristate "Open Profile for DICE driver"
+	depends on OF_RESERVED_MEM
+	help
+	  This driver exposes a DICE reserved memory region to userspace via
+	  a character device. The memory region contains Compound Device
+	  Identifiers (CDIs) generated by firmware as an output of DICE
+	  measured boot flow. Userspace can use CDIs for remote attestation
+	  and sealing.
+
+	  If unsure, say N.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index aecaaed87a357..2ec634354cf55 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -58,3 +58,4 @@ obj-$(CONFIG_UACCE)		+= uacce/
 obj-$(CONFIG_XILINX_SDFEC)	+= xilinx_sdfec.o
 obj-$(CONFIG_HISI_HIKEY_USB)	+= hisi_hikey_usb.o
 obj-$(CONFIG_UID_SYS_STATS)	+= uid_sys_stats.o
+obj-$(CONFIG_OPEN_DICE)		+= open-dice.o
diff --git a/drivers/misc/open-dice.c b/drivers/misc/open-dice.c
new file mode 100644
index 0000000000000..c61be3404c6f2
--- /dev/null
+++ b/drivers/misc/open-dice.c
@@ -0,0 +1,208 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ *
+ * Driver for Open Profile for DICE.
+ *
+ * This driver takes ownership of a reserved memory region containing data
+ * generated by the Open Profile for DICE measured boot protocol. The memory
+ * contents are not interpreted by the kernel but can be mapped into a userspace
+ * process via a misc device. Userspace can also request a wipe of the memory.
+ *
+ * Userspace can access the data with (w/o error handling):
+ *
+ *     fd = open("/dev/open-dice0", O_RDWR);
+ *     read(fd, &size, sizeof(unsigned long));
+ *     data = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
+ *     write(fd, NULL, 0); // wipe
+ *     close(fd);
+ */
+
+#include <linux/io.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/platform_device.h>
+
+#define DRIVER_NAME "open-dice"
+
+struct open_dice_drvdata {
+	struct mutex lock;
+	char name[16];
+	struct reserved_mem *rmem;
+	struct miscdevice misc;
+};
+
+static inline struct open_dice_drvdata *to_open_dice_drvdata(struct file *filp)
+{
+	return container_of(filp->private_data, struct open_dice_drvdata, misc);
+}
+
+static int open_dice_wipe(struct open_dice_drvdata *drvdata)
+{
+	void *kaddr;
+
+	mutex_lock(&drvdata->lock);
+	kaddr = devm_memremap(drvdata->misc.this_device, drvdata->rmem->base,
+			      drvdata->rmem->size, MEMREMAP_WC);
+	if (IS_ERR(kaddr)) {
+		mutex_unlock(&drvdata->lock);
+		return PTR_ERR(kaddr);
+	}
+
+	memset(kaddr, 0, drvdata->rmem->size);
+	devm_memunmap(drvdata->misc.this_device, kaddr);
+	mutex_unlock(&drvdata->lock);
+	return 0;
+}
+
+/*
+ * Copies the size of the reserved memory region to the user-provided buffer.
+ */
+static ssize_t open_dice_read(struct file *filp, char __user *ptr, size_t len,
+			      loff_t *off)
+{
+	unsigned long val = to_open_dice_drvdata(filp)->rmem->size;
+
+	return simple_read_from_buffer(ptr, len, off, &val, sizeof(val));
+}
+
+/*
+ * Triggers a wipe of the reserved memory region. The user-provided pointer
+ * is never dereferenced.
+ */
+static ssize_t open_dice_write(struct file *filp, const char __user *ptr,
+			       size_t len, loff_t *off)
+{
+	if (open_dice_wipe(to_open_dice_drvdata(filp)))
+		return -EIO;
+
+	/* Consume the input buffer. */
+	return len;
+}
+
+/*
+ * Creates a mapping of the reserved memory region in user address space.
+ */
+static int open_dice_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct open_dice_drvdata *drvdata = to_open_dice_drvdata(filp);
+
+	/* Do not allow userspace to modify the underlying data. */
+	if ((vma->vm_flags & VM_WRITE) && (vma->vm_flags & VM_SHARED))
+		return -EPERM;
+
+	/* Ensure userspace cannot acquire VM_WRITE + VM_SHARED later. */
+	if (vma->vm_flags & VM_WRITE)
+		vma->vm_flags &= ~VM_MAYSHARE;
+	else if (vma->vm_flags & VM_SHARED)
+		vma->vm_flags &= ~VM_MAYWRITE;
+
+	/* Create write-combine mapping so all clients observe a wipe. */
+	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+	vma->vm_flags |= VM_DONTCOPY | VM_DONTDUMP;
+	return vm_iomap_memory(vma, drvdata->rmem->base, drvdata->rmem->size);
+}
+
+static const struct file_operations open_dice_fops = {
+	.owner = THIS_MODULE,
+	.read = open_dice_read,
+	.write = open_dice_write,
+	.mmap = open_dice_mmap,
+};
+
+static int __init open_dice_probe(struct platform_device *pdev)
+{
+	static unsigned int dev_idx;
+	struct device *dev = &pdev->dev;
+	struct reserved_mem *rmem;
+	struct open_dice_drvdata *drvdata;
+	int ret;
+
+	rmem = of_reserved_mem_lookup(dev->of_node);
+	if (!rmem) {
+		dev_err(dev, "failed to lookup reserved memory\n");
+		return -EINVAL;
+	}
+
+	if (!rmem->size || (rmem->size > ULONG_MAX)) {
+		dev_err(dev, "invalid memory region size\n");
+		return -EINVAL;
+	}
+
+	if (!PAGE_ALIGNED(rmem->base) || !PAGE_ALIGNED(rmem->size)) {
+		dev_err(dev, "memory region must be page-aligned\n");
+		return -EINVAL;
+	}
+
+	drvdata = devm_kmalloc(dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
+	*drvdata = (struct open_dice_drvdata){
+		.lock = __MUTEX_INITIALIZER(drvdata->lock),
+		.rmem = rmem,
+		.misc = (struct miscdevice){
+			.parent	= dev,
+			.name	= drvdata->name,
+			.minor	= MISC_DYNAMIC_MINOR,
+			.fops	= &open_dice_fops,
+			.mode	= 0600,
+		},
+	};
+
+	/* Index overflow check not needed, misc_register() will fail. */
+	snprintf(drvdata->name, sizeof(drvdata->name), DRIVER_NAME"%u", dev_idx++);
+
+	ret = misc_register(&drvdata->misc);
+	if (ret) {
+		dev_err(dev, "failed to register misc device '%s': %d\n",
+			drvdata->name, ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, drvdata);
+	return 0;
+}
+
+static int open_dice_remove(struct platform_device *pdev)
+{
+	struct open_dice_drvdata *drvdata = platform_get_drvdata(pdev);
+
+	misc_deregister(&drvdata->misc);
+	return 0;
+}
+
+static const struct of_device_id open_dice_of_match[] = {
+	{ .compatible = "google,open-dice" },
+	{},
+};
+
+static struct platform_driver open_dice_driver = {
+	.remove = open_dice_remove,
+	.driver = {
+		.name = DRIVER_NAME,
+		.of_match_table = open_dice_of_match,
+	},
+};
+
+static int __init open_dice_init(void)
+{
+	int ret = platform_driver_probe(&open_dice_driver, open_dice_probe);
+
+	/* DICE regions are optional. Succeed even with zero instances. */
+	return (ret == -ENODEV) ? 0 : ret;
+}
+
+static void __exit open_dice_exit(void)
+{
+	platform_driver_unregister(&open_dice_driver);
+}
+
+module_init(open_dice_init);
+module_exit(open_dice_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("David Brazdil <dbrazdil@google.com>");
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 79bd5f5a1bf17..eb26896ee4c7a 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -511,6 +511,7 @@ static const struct of_device_id reserved_mem_matches[] = {
 	{ .compatible = "qcom,rmtfs-mem" },
 	{ .compatible = "qcom,cmd-db" },
 	{ .compatible = "ramoops" },
+	{ .compatible = "google,open-dice" },
 	{}
 };
 
-- 
GitLab


From 95602b6834109001a3853b2ca3c981a2f1d0ff81 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 27 Jan 2022 10:52:45 +0000
Subject: [PATCH 3437/4878] Revert "Revert "ANDROID: GKI: update virtual device
 symbol list""

Add symbols needed by the newly added open-dice.ko.

This reverts commit 870681ecd3252ba24ea3a354315bd9de01c5cc30.

Bug: 198197082
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I7dadbd95e23f77e8d50ff6c5d9e3e8ff746bef01
---
 android/abi_gki_aarch64_virtual_device | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 2716a11f4ccd4..021e7e3513838 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -640,6 +640,11 @@
   vlan_vids_add_by_dev
   vlan_vids_del_by_dev
 
+# required by open-dice.ko
+  devm_memremap
+  devm_memunmap
+  vm_iomap_memory
+
 # required by psmouse.ko
   bus_register_notifier
   bus_unregister_notifier
-- 
GitLab


From 55ee32da5ed34d8020c5340cf4c756032dad66d4 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 26 Jan 2022 18:02:00 +0000
Subject: [PATCH 3438/4878] ANDROID: KVM: arm64: Don't remove shadow table
 entry twice on teardown

__pkvm_teardown_shadow() already removes the shadow table entry for
the VM being torn down while the shadow_lock is held, so drop the
additional removal and avoid corrupting 'num_shadow_entries' in the
process.

Fixes: 9c864eab574c6 ("ANDROID: KVM: arm64: Refcount shadow structs on vcpu_{load/put}()")
Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 209580772
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie09ecde8c9b6f14ea1ee9d27fba62b713c21e484
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 57e1304c37134..e19af9e891f74 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -655,7 +655,6 @@ int __pkvm_teardown_shadow(struct kvm *kvm)
 	/* Reclaim guest pages, and page-table pages */
 	mc = &vm->host_kvm->arch.pkvm.teardown_mc;
 	reclaim_guest_pages(vm, mc);
-	remove_shadow_table(shadow_handle);
 	unpin_host_vcpus(vm);
 
 	/* Push the metadata pages to the teardown memcache */
-- 
GitLab


From 01e57334c8536daca3ffddf6bb2baa7fc7f398cb Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 27 Jan 2022 10:16:26 +0000
Subject: [PATCH 3439/4878] ANDROID: KVM: arm64: pkvm: Prevent the donation of
 no-map pages

Memory regions marked as no-map in DT routinely include TrustZone
carevouts and such. Although donating such pages to a guest may not
breach confidentiality, it may be used to corrupt its state in
uncontrollable ways. To prevent this, let's block host-initiated memory
transitions targeting no-map pages altogether in nVHE protected mode as
there should be no valid reason to do this currently.

Thankfully, the pKVM EL2 hypervisor has a full copy of the host's list
of memblock regions, hence allowing to check for the presence of the
MEMBLOCK_NOMAP flag on any given region at EL2 easily.

Bug: 205819752
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Id346d011ff02c2e92627481dfebc8d39334931c4
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 88293c4e9f3a4..25b30cc98c552 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -382,7 +382,7 @@ struct kvm_mem_range {
 	u64 end;
 };
 
-static bool find_mem_range(phys_addr_t addr, struct kvm_mem_range *range)
+static struct memblock_region *find_mem_range(phys_addr_t addr, struct kvm_mem_range *range)
 {
 	int cur, left = 0, right = hyp_memblock_nr;
 	struct memblock_region *reg;
@@ -405,18 +405,28 @@ static bool find_mem_range(phys_addr_t addr, struct kvm_mem_range *range)
 		} else {
 			range->start = reg->base;
 			range->end = end;
-			return true;
+			return reg;
 		}
 	}
 
-	return false;
+	return NULL;
 }
 
 bool addr_is_memory(phys_addr_t phys)
 {
 	struct kvm_mem_range range;
 
-	return find_mem_range(phys, &range);
+	return !!find_mem_range(phys, &range);
+}
+
+static bool addr_is_allowed_memory(phys_addr_t phys)
+{
+	struct memblock_region *reg;
+	struct kvm_mem_range range;
+
+	reg = find_mem_range(phys, &range);
+
+	return reg && !(reg->flags & MEMBLOCK_NOMAP);
 }
 
 static bool is_in_mem_range(u64 addr, struct kvm_mem_range *range)
@@ -555,7 +565,7 @@ static bool host_stage2_force_pte_cb(u64 addr, u64 end, enum kvm_pgtable_prot pr
 static int host_stage2_idmap(u64 addr)
 {
 	struct kvm_mem_range range;
-	bool is_memory = find_mem_range(addr, &range);
+	bool is_memory = !!find_mem_range(addr, &range);
 	enum kvm_pgtable_prot prot;
 	int ret;
 
@@ -725,7 +735,7 @@ static int __check_page_state_visitor(u64 addr, u64 end, u32 level,
 	struct check_walk_data *d = arg;
 	kvm_pte_t pte = *ptep;
 
-	if (kvm_pte_valid(pte) && !addr_is_memory(kvm_pte_to_phys(pte)))
+	if (kvm_pte_valid(pte) && !addr_is_allowed_memory(kvm_pte_to_phys(pte)))
 		return -EINVAL;
 
 	return d->get_page_state(pte) == d->desired ? 0 : -EPERM;
@@ -1120,7 +1130,7 @@ static int __guest_request_page_transition(u64 *completer_addr,
 		return -EINVAL;
 
 	phys = kvm_pte_to_phys(pte);
-	if (!addr_is_memory(phys))
+	if (!addr_is_allowed_memory(phys))
 		return -EINVAL;
 
 	return __guest_get_completer_addr(completer_addr, phys, tx);
-- 
GitLab


From 8a98494ddc958f3f43d2411306524b505e2f4fa9 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Thu, 27 Jan 2022 22:19:22 +0800
Subject: [PATCH 3440/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 170511572
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Iaa1f4f8ce188fe08361b102160db2a4d337bc08f
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index ad193232d6922..8b3c65b18310a 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1151,6 +1151,7 @@
   kthread_flush_worker
   __kthread_init_worker
   kthread_mod_delayed_work
+  kthread_queue_delayed_work
   kthread_queue_work
   kthread_should_stop
   kthread_stop
-- 
GitLab


From 6a6acf927895c38bdd9f3cd76b8dbfc25ac03e88 Mon Sep 17 00:00:00 2001
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Tue, 19 Oct 2021 13:27:10 +0100
Subject: [PATCH 3441/4878] drm/i915: Flush TLBs before releasing backing store

commit 7938d61591d33394a21bdd7797a245b65428f44c upstream.

We need to flush TLBs before releasing backing store otherwise userspace
is able to encounter stale entries if a) it is not declaring access to
certain buffers and b) it races with the backing store release from a
such undeclared execution already executing on the GPU in parallel.

The approach taken is to mark any buffer objects which were ever bound
to the GPU and to trigger a serialized TLB flush when their backing
store is released.

Alternatively the flushing could be done on VMA unbind, at which point
we would be able to ascertain whether there is potential a parallel GPU
execution (which could race), but essentially it boils down to paying
the cost of TLB flushes potentially needlessly at VMA unbind time (when
the backing store is not known to be going away so not needed for
safety), versus potentially needlessly at backing store relase time
(since we at that point cannot tell whether there is anything executing
on the GPU which uses that object).

Thereforce simplicity of implementation has been chosen for now with
scope to benchmark and refine later as required.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../gpu/drm/i915/gem/i915_gem_object_types.h  |   1 +
 drivers/gpu/drm/i915/gem/i915_gem_pages.c     |  10 ++
 drivers/gpu/drm/i915/gt/intel_gt.c            | 102 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt.h            |   2 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   2 +
 drivers/gpu/drm/i915/i915_reg.h               |  11 ++
 drivers/gpu/drm/i915/i915_vma.c               |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  26 ++++-
 drivers/gpu/drm/i915/intel_uncore.h           |   2 +
 9 files changed, 155 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
index d6711caa7f399..dbc88fc7136bf 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
@@ -159,6 +159,7 @@ struct drm_i915_gem_object {
 #define I915_BO_ALLOC_VOLATILE   BIT(1)
 #define I915_BO_ALLOC_FLAGS (I915_BO_ALLOC_CONTIGUOUS | I915_BO_ALLOC_VOLATILE)
 #define I915_BO_READONLY         BIT(2)
+#define I915_BO_WAS_BOUND_BIT    3
 
 	/*
 	 * Is the object to be mapped as read-only to the GPU
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
index f60ca6dc911f2..27d24cb38c0d2 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
@@ -10,6 +10,8 @@
 #include "i915_gem_lmem.h"
 #include "i915_gem_mman.h"
 
+#include "gt/intel_gt.h"
+
 void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
 				 struct sg_table *pages,
 				 unsigned int sg_page_sizes)
@@ -186,6 +188,14 @@ __i915_gem_object_unset_pages(struct drm_i915_gem_object *obj)
 	__i915_gem_object_reset_page_iter(obj);
 	obj->mm.page_sizes.phys = obj->mm.page_sizes.sg = 0;
 
+	if (test_and_clear_bit(I915_BO_WAS_BOUND_BIT, &obj->flags)) {
+		struct drm_i915_private *i915 = to_i915(obj->base.dev);
+		intel_wakeref_t wakeref;
+
+		with_intel_runtime_pm_if_active(&i915->runtime_pm, wakeref)
+			intel_gt_invalidate_tlbs(&i915->gt);
+	}
+
 	return pages;
 }
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 39b428c5049c0..6615eb5147e23 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -26,6 +26,8 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 
 	spin_lock_init(&gt->irq_lock);
 
+	mutex_init(&gt->tlb_invalidate_lock);
+
 	INIT_LIST_HEAD(&gt->closed_vma);
 	spin_lock_init(&gt->closed_lock);
 
@@ -661,3 +663,103 @@ void intel_gt_info_print(const struct intel_gt_info *info,
 
 	intel_sseu_dump(&info->sseu, p);
 }
+
+struct reg_and_bit {
+	i915_reg_t reg;
+	u32 bit;
+};
+
+static struct reg_and_bit
+get_reg_and_bit(const struct intel_engine_cs *engine, const bool gen8,
+		const i915_reg_t *regs, const unsigned int num)
+{
+	const unsigned int class = engine->class;
+	struct reg_and_bit rb = { };
+
+	if (drm_WARN_ON_ONCE(&engine->i915->drm,
+			     class >= num || !regs[class].reg))
+		return rb;
+
+	rb.reg = regs[class];
+	if (gen8 && class == VIDEO_DECODE_CLASS)
+		rb.reg.reg += 4 * engine->instance; /* GEN8_M2TCR */
+	else
+		rb.bit = engine->instance;
+
+	rb.bit = BIT(rb.bit);
+
+	return rb;
+}
+
+void intel_gt_invalidate_tlbs(struct intel_gt *gt)
+{
+	static const i915_reg_t gen8_regs[] = {
+		[RENDER_CLASS]			= GEN8_RTCR,
+		[VIDEO_DECODE_CLASS]		= GEN8_M1TCR, /* , GEN8_M2TCR */
+		[VIDEO_ENHANCEMENT_CLASS]	= GEN8_VTCR,
+		[COPY_ENGINE_CLASS]		= GEN8_BTCR,
+	};
+	static const i915_reg_t gen12_regs[] = {
+		[RENDER_CLASS]			= GEN12_GFX_TLB_INV_CR,
+		[VIDEO_DECODE_CLASS]		= GEN12_VD_TLB_INV_CR,
+		[VIDEO_ENHANCEMENT_CLASS]	= GEN12_VE_TLB_INV_CR,
+		[COPY_ENGINE_CLASS]		= GEN12_BLT_TLB_INV_CR,
+	};
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+	struct intel_engine_cs *engine;
+	enum intel_engine_id id;
+	const i915_reg_t *regs;
+	unsigned int num = 0;
+
+	if (I915_SELFTEST_ONLY(gt->awake == -ENODEV))
+		return;
+
+	if (INTEL_GEN(i915) == 12) {
+		regs = gen12_regs;
+		num = ARRAY_SIZE(gen12_regs);
+	} else if (INTEL_GEN(i915) >= 8 && INTEL_GEN(i915) <= 11) {
+		regs = gen8_regs;
+		num = ARRAY_SIZE(gen8_regs);
+	} else if (INTEL_GEN(i915) < 8) {
+		return;
+	}
+
+	if (drm_WARN_ONCE(&i915->drm, !num,
+			  "Platform does not implement TLB invalidation!"))
+		return;
+
+	GEM_TRACE("\n");
+
+	assert_rpm_wakelock_held(&i915->runtime_pm);
+
+	mutex_lock(&gt->tlb_invalidate_lock);
+	intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
+
+	for_each_engine(engine, gt, id) {
+		/*
+		 * HW architecture suggest typical invalidation time at 40us,
+		 * with pessimistic cases up to 100us and a recommendation to
+		 * cap at 1ms. We go a bit higher just in case.
+		 */
+		const unsigned int timeout_us = 100;
+		const unsigned int timeout_ms = 4;
+		struct reg_and_bit rb;
+
+		rb = get_reg_and_bit(engine, regs == gen8_regs, regs, num);
+		if (!i915_mmio_reg_offset(rb.reg))
+			continue;
+
+		intel_uncore_write_fw(uncore, rb.reg, rb.bit);
+		if (__intel_wait_for_register_fw(uncore,
+						 rb.reg, rb.bit, 0,
+						 timeout_us, timeout_ms,
+						 NULL))
+			drm_err_ratelimited(&gt->i915->drm,
+					    "%s TLB invalidation did not complete in %ums!\n",
+					    engine->name, timeout_ms);
+	}
+
+	intel_uncore_forcewake_put_delayed(uncore, FORCEWAKE_ALL);
+	mutex_unlock(&gt->tlb_invalidate_lock);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 9157c7411f603..d9a1168172ae3 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -77,4 +77,6 @@ static inline bool intel_gt_is_wedged(const struct intel_gt *gt)
 void intel_gt_info_print(const struct intel_gt_info *info,
 			 struct drm_printer *p);
 
+void intel_gt_invalidate_tlbs(struct intel_gt *gt);
+
 #endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index 6d39a4a11bf39..78c061614d8bb 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -36,6 +36,8 @@ struct intel_gt {
 
 	struct intel_uc uc;
 
+	struct mutex tlb_invalidate_lock;
+
 	struct intel_gt_timelines {
 		spinlock_t lock; /* protects active_list */
 		struct list_head active_list;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index ce8c91c5fdd3b..12488996a7f4f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2639,6 +2639,12 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 #define   GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING	(1 << 28)
 #define   GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT	(1 << 24)
 
+#define GEN8_RTCR	_MMIO(0x4260)
+#define GEN8_M1TCR	_MMIO(0x4264)
+#define GEN8_M2TCR	_MMIO(0x4268)
+#define GEN8_BTCR	_MMIO(0x426c)
+#define GEN8_VTCR	_MMIO(0x4270)
+
 #if 0
 #define PRB0_TAIL	_MMIO(0x2030)
 #define PRB0_HEAD	_MMIO(0x2034)
@@ -2728,6 +2734,11 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 #define   FAULT_VA_HIGH_BITS		(0xf << 0)
 #define   FAULT_GTT_SEL			(1 << 4)
 
+#define GEN12_GFX_TLB_INV_CR	_MMIO(0xced8)
+#define GEN12_VD_TLB_INV_CR	_MMIO(0xcedc)
+#define GEN12_VE_TLB_INV_CR	_MMIO(0xcee0)
+#define GEN12_BLT_TLB_INV_CR	_MMIO(0xcee4)
+
 #define GEN12_AUX_ERR_DBG		_MMIO(0x43f4)
 
 #define FPGA_DBG		_MMIO(0x42300)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index caa9b041616b0..50a86fd89d005 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -439,6 +439,9 @@ int i915_vma_bind(struct i915_vma *vma,
 		vma->ops->bind_vma(vma->vm, NULL, vma, cache_level, bind_flags);
 	}
 
+	if (vma->obj)
+		set_bit(I915_BO_WAS_BOUND_BIT, &vma->obj->flags);
+
 	atomic_or(bind_flags, &vma->flags);
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 97ded2a59cf4c..01849840ac560 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -694,7 +694,8 @@ void intel_uncore_forcewake_get__locked(struct intel_uncore *uncore,
 }
 
 static void __intel_uncore_forcewake_put(struct intel_uncore *uncore,
-					 enum forcewake_domains fw_domains)
+					 enum forcewake_domains fw_domains,
+					 bool delayed)
 {
 	struct intel_uncore_forcewake_domain *domain;
 	unsigned int tmp;
@@ -709,7 +710,11 @@ static void __intel_uncore_forcewake_put(struct intel_uncore *uncore,
 			continue;
 		}
 
-		uncore->funcs.force_wake_put(uncore, domain->mask);
+		if (delayed &&
+		    !(domain->uncore->fw_domains_timer & domain->mask))
+			fw_domain_arm_timer(domain);
+		else
+			uncore->funcs.force_wake_put(uncore, domain->mask);
 	}
 }
 
@@ -730,7 +735,20 @@ void intel_uncore_forcewake_put(struct intel_uncore *uncore,
 		return;
 
 	spin_lock_irqsave(&uncore->lock, irqflags);
-	__intel_uncore_forcewake_put(uncore, fw_domains);
+	__intel_uncore_forcewake_put(uncore, fw_domains, false);
+	spin_unlock_irqrestore(&uncore->lock, irqflags);
+}
+
+void intel_uncore_forcewake_put_delayed(struct intel_uncore *uncore,
+					enum forcewake_domains fw_domains)
+{
+	unsigned long irqflags;
+
+	if (!uncore->funcs.force_wake_put)
+		return;
+
+	spin_lock_irqsave(&uncore->lock, irqflags);
+	__intel_uncore_forcewake_put(uncore, fw_domains, true);
 	spin_unlock_irqrestore(&uncore->lock, irqflags);
 }
 
@@ -772,7 +790,7 @@ void intel_uncore_forcewake_put__locked(struct intel_uncore *uncore,
 	if (!uncore->funcs.force_wake_put)
 		return;
 
-	__intel_uncore_forcewake_put(uncore, fw_domains);
+	__intel_uncore_forcewake_put(uncore, fw_domains, false);
 }
 
 void assert_forcewakes_inactive(struct intel_uncore *uncore)
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index c4b22d9d0b451..034f04e0de8b7 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -211,6 +211,8 @@ void intel_uncore_forcewake_get(struct intel_uncore *uncore,
 				enum forcewake_domains domains);
 void intel_uncore_forcewake_put(struct intel_uncore *uncore,
 				enum forcewake_domains domains);
+void intel_uncore_forcewake_put_delayed(struct intel_uncore *uncore,
+					enum forcewake_domains domains);
 void intel_uncore_forcewake_flush(struct intel_uncore *uncore,
 				  enum forcewake_domains fw_domains);
 
-- 
GitLab


From fdcfabd0952d0b66aee4128739e07ec4d212484a Mon Sep 17 00:00:00 2001
From: Manish Chopra <manishc@marvell.com>
Date: Tue, 25 Jan 2022 10:57:48 -0800
Subject: [PATCH 3442/4878] bnx2x: Utilize firmware 7.13.21.0

commit b7a49f73059fe6147b6b78e8f674ce0d21237432 upstream

This new firmware addresses few important issues and enhancements
as mentioned below -

- Support direct invalidation of FP HSI Ver per function ID, required for
  invalidating FP HSI Ver prior to each VF start, as there is no VF start
- BRB hardware block parity error detection support for the driver
- Fix the FCOE underrun flow
- Fix PSOD during FCoE BFS over the NIC ports after preboot driver
- Maintains backward compatibility

This patch incorporates this new firmware 7.13.21.0 in bnx2x driver.

Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h   | 11 ++-
 .../net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   |  6 +-
 .../ethernet/broadcom/bnx2x/bnx2x_fw_defs.h   |  2 +
 .../net/ethernet/broadcom/bnx2x/bnx2x_hsi.h   |  3 +-
 .../net/ethernet/broadcom/bnx2x/bnx2x_main.c  | 75 +++++++++++++------
 5 files changed, 69 insertions(+), 28 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index d04994840b87d..bb3ba614fb174 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1850,6 +1850,14 @@ struct bnx2x {
 
 	/* Vxlan/Geneve related information */
 	u16 udp_tunnel_ports[BNX2X_UDP_PORT_MAX];
+
+#define FW_CAP_INVALIDATE_VF_FP_HSI	BIT(0)
+	u32 fw_cap;
+
+	u32 fw_major;
+	u32 fw_minor;
+	u32 fw_rev;
+	u32 fw_eng;
 };
 
 /* Tx queues may be less or equal to Rx queues */
@@ -2526,5 +2534,6 @@ void bnx2x_register_phc(struct bnx2x *bp);
  * Meant for implicit re-load flows.
  */
 int bnx2x_vlan_reconfigure_vid(struct bnx2x *bp);
-
+int bnx2x_init_firmware(struct bnx2x *bp);
+void bnx2x_release_firmware(struct bnx2x *bp);
 #endif /* bnx2x.h */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index b5d954cb409ae..41ebbb2c7d3ac 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2364,10 +2364,8 @@ int bnx2x_compare_fw_ver(struct bnx2x *bp, u32 load_code, bool print_err)
 	if (load_code != FW_MSG_CODE_DRV_LOAD_COMMON_CHIP &&
 	    load_code != FW_MSG_CODE_DRV_LOAD_COMMON) {
 		/* build my FW version dword */
-		u32 my_fw = (BCM_5710_FW_MAJOR_VERSION) +
-			(BCM_5710_FW_MINOR_VERSION << 8) +
-			(BCM_5710_FW_REVISION_VERSION << 16) +
-			(BCM_5710_FW_ENGINEERING_VERSION << 24);
+		u32 my_fw = (bp->fw_major) + (bp->fw_minor << 8) +
+				(bp->fw_rev << 16) + (bp->fw_eng << 24);
 
 		/* read loaded FW from chip */
 		u32 loaded_fw = REG_RD(bp, XSEM_REG_PRAM);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
index 3f8435208bf49..a84d015da5dfa 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_fw_defs.h
@@ -241,6 +241,8 @@
 	IRO[221].m2))
 #define XSTORM_VF_TO_PF_OFFSET(funcId) \
 	(IRO[48].base + ((funcId) * IRO[48].m1))
+#define XSTORM_ETH_FUNCTION_INFO_FP_HSI_VALID_E2_OFFSET(fid)	\
+	(IRO[386].base + ((fid) * IRO[386].m1))
 #define COMMON_ASM_INVALID_ASSERT_OPCODE 0x0
 
 /* eth hsi version */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 622fadc50316e..611efee758340 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -3024,7 +3024,8 @@ struct afex_stats {
 
 #define BCM_5710_FW_MAJOR_VERSION			7
 #define BCM_5710_FW_MINOR_VERSION			13
-#define BCM_5710_FW_REVISION_VERSION		15
+#define BCM_5710_FW_REVISION_VERSION		21
+#define BCM_5710_FW_REVISION_VERSION_V15	15
 #define BCM_5710_FW_ENGINEERING_VERSION		0
 #define BCM_5710_FW_COMPILE_FLAGS			1
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 28069b2908625..9a86367a26369 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -74,9 +74,19 @@
 	__stringify(BCM_5710_FW_MINOR_VERSION) "."	\
 	__stringify(BCM_5710_FW_REVISION_VERSION) "."	\
 	__stringify(BCM_5710_FW_ENGINEERING_VERSION)
+
+#define FW_FILE_VERSION_V15				\
+	__stringify(BCM_5710_FW_MAJOR_VERSION) "."      \
+	__stringify(BCM_5710_FW_MINOR_VERSION) "."	\
+	__stringify(BCM_5710_FW_REVISION_VERSION_V15) "."	\
+	__stringify(BCM_5710_FW_ENGINEERING_VERSION)
+
 #define FW_FILE_NAME_E1		"bnx2x/bnx2x-e1-" FW_FILE_VERSION ".fw"
 #define FW_FILE_NAME_E1H	"bnx2x/bnx2x-e1h-" FW_FILE_VERSION ".fw"
 #define FW_FILE_NAME_E2		"bnx2x/bnx2x-e2-" FW_FILE_VERSION ".fw"
+#define FW_FILE_NAME_E1_V15	"bnx2x/bnx2x-e1-" FW_FILE_VERSION_V15 ".fw"
+#define FW_FILE_NAME_E1H_V15	"bnx2x/bnx2x-e1h-" FW_FILE_VERSION_V15 ".fw"
+#define FW_FILE_NAME_E2_V15	"bnx2x/bnx2x-e2-" FW_FILE_VERSION_V15 ".fw"
 
 /* Time in jiffies before concluding the transmitter is hung */
 #define TX_TIMEOUT		(5*HZ)
@@ -747,9 +757,7 @@ static int bnx2x_mc_assert(struct bnx2x *bp)
 		  CHIP_IS_E1(bp) ? "everest1" :
 		  CHIP_IS_E1H(bp) ? "everest1h" :
 		  CHIP_IS_E2(bp) ? "everest2" : "everest3",
-		  BCM_5710_FW_MAJOR_VERSION,
-		  BCM_5710_FW_MINOR_VERSION,
-		  BCM_5710_FW_REVISION_VERSION);
+		  bp->fw_major, bp->fw_minor, bp->fw_rev);
 
 	return rc;
 }
@@ -12355,6 +12363,15 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 
 	bnx2x_read_fwinfo(bp);
 
+	if (IS_PF(bp)) {
+		rc = bnx2x_init_firmware(bp);
+
+		if (rc) {
+			bnx2x_free_mem_bp(bp);
+			return rc;
+		}
+	}
+
 	func = BP_FUNC(bp);
 
 	/* need to reset chip if undi was active */
@@ -12367,6 +12384,7 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 
 		rc = bnx2x_prev_unload(bp);
 		if (rc) {
+			bnx2x_release_firmware(bp);
 			bnx2x_free_mem_bp(bp);
 			return rc;
 		}
@@ -13366,16 +13384,11 @@ static int bnx2x_check_firmware(struct bnx2x *bp)
 	/* Check FW version */
 	offset = be32_to_cpu(fw_hdr->fw_version.offset);
 	fw_ver = firmware->data + offset;
-	if ((fw_ver[0] != BCM_5710_FW_MAJOR_VERSION) ||
-	    (fw_ver[1] != BCM_5710_FW_MINOR_VERSION) ||
-	    (fw_ver[2] != BCM_5710_FW_REVISION_VERSION) ||
-	    (fw_ver[3] != BCM_5710_FW_ENGINEERING_VERSION)) {
+	if (fw_ver[0] != bp->fw_major || fw_ver[1] != bp->fw_minor ||
+	    fw_ver[2] != bp->fw_rev || fw_ver[3] != bp->fw_eng) {
 		BNX2X_ERR("Bad FW version:%d.%d.%d.%d. Should be %d.%d.%d.%d\n",
-		       fw_ver[0], fw_ver[1], fw_ver[2], fw_ver[3],
-		       BCM_5710_FW_MAJOR_VERSION,
-		       BCM_5710_FW_MINOR_VERSION,
-		       BCM_5710_FW_REVISION_VERSION,
-		       BCM_5710_FW_ENGINEERING_VERSION);
+			  fw_ver[0], fw_ver[1], fw_ver[2], fw_ver[3],
+			  bp->fw_major, bp->fw_minor, bp->fw_rev, bp->fw_eng);
 		return -EINVAL;
 	}
 
@@ -13453,34 +13466,51 @@ do {									\
 	     (u8 *)bp->arr, len);					\
 } while (0)
 
-static int bnx2x_init_firmware(struct bnx2x *bp)
+int bnx2x_init_firmware(struct bnx2x *bp)
 {
-	const char *fw_file_name;
+	const char *fw_file_name, *fw_file_name_v15;
 	struct bnx2x_fw_file_hdr *fw_hdr;
 	int rc;
 
 	if (bp->firmware)
 		return 0;
 
-	if (CHIP_IS_E1(bp))
+	if (CHIP_IS_E1(bp)) {
 		fw_file_name = FW_FILE_NAME_E1;
-	else if (CHIP_IS_E1H(bp))
+		fw_file_name_v15 = FW_FILE_NAME_E1_V15;
+	} else if (CHIP_IS_E1H(bp)) {
 		fw_file_name = FW_FILE_NAME_E1H;
-	else if (!CHIP_IS_E1x(bp))
+		fw_file_name_v15 = FW_FILE_NAME_E1H_V15;
+	} else if (!CHIP_IS_E1x(bp)) {
 		fw_file_name = FW_FILE_NAME_E2;
-	else {
+		fw_file_name_v15 = FW_FILE_NAME_E2_V15;
+	} else {
 		BNX2X_ERR("Unsupported chip revision\n");
 		return -EINVAL;
 	}
+
 	BNX2X_DEV_INFO("Loading %s\n", fw_file_name);
 
 	rc = request_firmware(&bp->firmware, fw_file_name, &bp->pdev->dev);
 	if (rc) {
-		BNX2X_ERR("Can't load firmware file %s\n",
-			  fw_file_name);
-		goto request_firmware_exit;
+		BNX2X_DEV_INFO("Trying to load older fw %s\n", fw_file_name_v15);
+
+		/* try to load prev version */
+		rc = request_firmware(&bp->firmware, fw_file_name_v15, &bp->pdev->dev);
+
+		if (rc)
+			goto request_firmware_exit;
+
+		bp->fw_rev = BCM_5710_FW_REVISION_VERSION_V15;
+	} else {
+		bp->fw_cap |= FW_CAP_INVALIDATE_VF_FP_HSI;
+		bp->fw_rev = BCM_5710_FW_REVISION_VERSION;
 	}
 
+	bp->fw_major = BCM_5710_FW_MAJOR_VERSION;
+	bp->fw_minor = BCM_5710_FW_MINOR_VERSION;
+	bp->fw_eng = BCM_5710_FW_ENGINEERING_VERSION;
+
 	rc = bnx2x_check_firmware(bp);
 	if (rc) {
 		BNX2X_ERR("Corrupt firmware file %s\n", fw_file_name);
@@ -13536,7 +13566,7 @@ request_firmware_exit:
 	return rc;
 }
 
-static void bnx2x_release_firmware(struct bnx2x *bp)
+void bnx2x_release_firmware(struct bnx2x *bp)
 {
 	kfree(bp->init_ops_offsets);
 	kfree(bp->init_ops);
@@ -14053,6 +14083,7 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 	return 0;
 
 init_one_freemem:
+	bnx2x_release_firmware(bp);
 	bnx2x_free_mem_bp(bp);
 
 init_one_exit:
-- 
GitLab


From 4d63363c88e32ff5384122a0232c638c64499799 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manishc@marvell.com>
Date: Tue, 25 Jan 2022 10:57:49 -0800
Subject: [PATCH 3443/4878] bnx2x: Invalidate fastpath HSI version for VFs

commit 802d4d207e75d7208ff75adb712b556c1e91cf1c upstream

Commit 0a6890b9b4df ("bnx2x: Utilize FW 7.13.15.0.")
added validation for fastpath HSI versions for different
client init which was not meant for SR-IOV VF clients, which
resulted in firmware asserts when running VF clients with
different fastpath HSI version.

This patch along with the new firmware support in patch #1
fixes this behavior in order to not validate fastpath HSI
version for the VFs.

Fixes: 0a6890b9b4df ("bnx2x: Utilize FW 7.13.15.0.")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 03eb0179ec008..08437eaacbb96 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -758,9 +758,18 @@ static void bnx2x_vf_igu_reset(struct bnx2x *bp, struct bnx2x_virtf *vf)
 
 void bnx2x_vf_enable_access(struct bnx2x *bp, u8 abs_vfid)
 {
+	u16 abs_fid;
+
+	abs_fid = FW_VF_HANDLE(abs_vfid);
+
 	/* set the VF-PF association in the FW */
-	storm_memset_vf_to_pf(bp, FW_VF_HANDLE(abs_vfid), BP_FUNC(bp));
-	storm_memset_func_en(bp, FW_VF_HANDLE(abs_vfid), 1);
+	storm_memset_vf_to_pf(bp, abs_fid, BP_FUNC(bp));
+	storm_memset_func_en(bp, abs_fid, 1);
+
+	/* Invalidate fp_hsi version for vfs */
+	if (bp->fw_cap & FW_CAP_INVALIDATE_VF_FP_HSI)
+		REG_WR8(bp, BAR_XSTRORM_INTMEM +
+			    XSTORM_ETH_FUNCTION_INFO_FP_HSI_VALID_E2_OFFSET(abs_fid), 0);
 
 	/* clear vf errors*/
 	bnx2x_vf_semi_clear_err(bp, abs_vfid);
-- 
GitLab


From 12d3389b7af68d89e45b214640699fb603e243e3 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@kernel.org>
Date: Fri, 17 Sep 2021 15:04:48 -0700
Subject: [PATCH 3444/4878] rcu: Tighten rcu_advance_cbs_nowake() checks

commit 614ddad17f22a22e035e2ea37a04815f50362017 upstream.

Currently, rcu_advance_cbs_nowake() checks that a grace period is in
progress, however, that grace period could end just after the check.
This commit rechecks that a grace period is still in progress while
holding the rcu_node structure's lock.  The grace period cannot end while
the current CPU's rcu_node structure's ->lock is held, thus avoiding
false positives from the WARN_ON_ONCE().

As Daniel Vacek noted, it is not necessary for the rcu_node structure
to have a CPU that has not yet passed through its quiescent state.

Tested-by: Guillaume Morin <guillaume@morinfr.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/rcu/tree.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index b74e7ace4376b..844c35803739e 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1581,10 +1581,11 @@ static void __maybe_unused rcu_advance_cbs_nowake(struct rcu_node *rnp,
 						  struct rcu_data *rdp)
 {
 	rcu_lockdep_assert_cblist_protected(rdp);
-	if (!rcu_seq_state(rcu_seq_current(&rnp->gp_seq)) ||
-	    !raw_spin_trylock_rcu_node(rnp))
+	if (!rcu_seq_state(rcu_seq_current(&rnp->gp_seq)) || !raw_spin_trylock_rcu_node(rnp))
 		return;
-	WARN_ON_ONCE(rcu_advance_cbs(rnp, rdp));
+	// The grace period cannot end while we hold the rcu_node lock.
+	if (rcu_seq_state(rcu_seq_current(&rnp->gp_seq)))
+		WARN_ON_ONCE(rcu_advance_cbs(rnp, rdp));
 	raw_spin_unlock_rcu_node(rnp);
 }
 
-- 
GitLab


From a447d7f786ec925d1c23f6509255f43ffc2ddffe Mon Sep 17 00:00:00 2001
From: David Matlack <dmatlack@google.com>
Date: Thu, 13 Jan 2022 23:30:17 +0000
Subject: [PATCH 3445/4878] KVM: x86/mmu: Fix write-protection of PTs mapped by
 the TDP MMU

commit 7c8a4742c4abe205ec9daf416c9d42fd6b406e8e upstream.

When the TDP MMU is write-protection GFNs for page table protection (as
opposed to for dirty logging, or due to the HVA not being writable), it
checks if the SPTE is already write-protected and if so skips modifying
the SPTE and the TLB flush.

This behavior is incorrect because it fails to check if the SPTE
is write-protected for page table protection, i.e. fails to check
that MMU-writable is '0'.  If the SPTE was write-protected for dirty
logging but not page table protection, the SPTE could locklessly be made
writable, and vCPUs could still be running with writable mappings cached
in their TLB.

Fix this by only skipping setting the SPTE if the SPTE is already
write-protected *and* MMU-writable is already clear.  Technically,
checking only MMU-writable would suffice; a SPTE cannot be writable
without MMU-writable being set.  But check both to be paranoid and
because it arguably yields more readable code.

Fixes: 46044f72c382 ("kvm: x86/mmu: Support write protection for nesting in tdp MMU")
Cc: stable@vger.kernel.org
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20220113233020.3986005-2-dmatlack@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/mmu/tdp_mmu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index f2ddf663e72e9..7e08efb068393 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -1130,12 +1130,12 @@ static bool write_protect_gfn(struct kvm *kvm, struct kvm_mmu_page *root,
 	bool spte_set = false;
 
 	tdp_root_for_each_leaf_pte(iter, root, gfn, gfn + 1) {
-		if (!is_writable_pte(iter.old_spte))
-			break;
-
 		new_spte = iter.old_spte &
 			~(PT_WRITABLE_MASK | SPTE_MMU_WRITEABLE);
 
+		if (new_spte == iter.old_spte)
+			break;
+
 		tdp_mmu_set_spte(kvm, &iter, new_spte);
 		spte_set = true;
 	}
-- 
GitLab


From 11ba2c6dfb902de05b73000a98534e376173b6ca Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 10 Jan 2022 19:19:23 +0100
Subject: [PATCH 3446/4878] select: Fix indefinitely sleeping task in
 poll_schedule_timeout()

commit 68514dacf2715d11b91ca50d88de047c086fea9c upstream.

A task can end up indefinitely sleeping in do_select() ->
poll_schedule_timeout() when the following race happens:

  TASK1 (thread1)             TASK2                   TASK1 (thread2)
  do_select()
    setup poll_wqueues table
    with 'fd'
                              write data to 'fd'
                                pollwake()
                                  table->triggered = 1
                                                      closes 'fd' thread1 is
                                                        waiting for
    poll_schedule_timeout()
      - sees table->triggered
      table->triggered = 0
      return -EINTR
    loop back in do_select()

But at this point when TASK1 loops back, the fdget() in the setup of
poll_wqueues fails.  So now so we never find 'fd' is ready for reading
and sleep in poll_schedule_timeout() indefinitely.

Treat an fd that got closed as a fd on which some event happened.  This
makes sure cannot block indefinitely in do_select().

Another option would be to return -EBADF in this case but that has a
potential of subtly breaking applications that excercise this behavior
and it happens to work for them.  So returning fd as active seems like a
safer choice.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/select.c | 63 ++++++++++++++++++++++++++++-------------------------
 1 file changed, 33 insertions(+), 30 deletions(-)

diff --git a/fs/select.c b/fs/select.c
index 945896d0ac9e7..5edffee1162c2 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -458,9 +458,11 @@ get_max:
 	return max;
 }
 
-#define POLLIN_SET (EPOLLRDNORM | EPOLLRDBAND | EPOLLIN | EPOLLHUP | EPOLLERR)
-#define POLLOUT_SET (EPOLLWRBAND | EPOLLWRNORM | EPOLLOUT | EPOLLERR)
-#define POLLEX_SET (EPOLLPRI)
+#define POLLIN_SET (EPOLLRDNORM | EPOLLRDBAND | EPOLLIN | EPOLLHUP | EPOLLERR |\
+			EPOLLNVAL)
+#define POLLOUT_SET (EPOLLWRBAND | EPOLLWRNORM | EPOLLOUT | EPOLLERR |\
+			 EPOLLNVAL)
+#define POLLEX_SET (EPOLLPRI | EPOLLNVAL)
 
 static inline void wait_key_set(poll_table *wait, unsigned long in,
 				unsigned long out, unsigned long bit,
@@ -527,6 +529,7 @@ static int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time)
 					break;
 				if (!(bit & all_bits))
 					continue;
+				mask = EPOLLNVAL;
 				f = fdget(i);
 				if (f.file) {
 					wait_key_set(wait, in, out, bit,
@@ -534,34 +537,34 @@ static int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time)
 					mask = vfs_poll(f.file, wait);
 
 					fdput(f);
-					if ((mask & POLLIN_SET) && (in & bit)) {
-						res_in |= bit;
-						retval++;
-						wait->_qproc = NULL;
-					}
-					if ((mask & POLLOUT_SET) && (out & bit)) {
-						res_out |= bit;
-						retval++;
-						wait->_qproc = NULL;
-					}
-					if ((mask & POLLEX_SET) && (ex & bit)) {
-						res_ex |= bit;
-						retval++;
-						wait->_qproc = NULL;
-					}
-					/* got something, stop busy polling */
-					if (retval) {
-						can_busy_loop = false;
-						busy_flag = 0;
-
-					/*
-					 * only remember a returned
-					 * POLL_BUSY_LOOP if we asked for it
-					 */
-					} else if (busy_flag & mask)
-						can_busy_loop = true;
-
 				}
+				if ((mask & POLLIN_SET) && (in & bit)) {
+					res_in |= bit;
+					retval++;
+					wait->_qproc = NULL;
+				}
+				if ((mask & POLLOUT_SET) && (out & bit)) {
+					res_out |= bit;
+					retval++;
+					wait->_qproc = NULL;
+				}
+				if ((mask & POLLEX_SET) && (ex & bit)) {
+					res_ex |= bit;
+					retval++;
+					wait->_qproc = NULL;
+				}
+				/* got something, stop busy polling */
+				if (retval) {
+					can_busy_loop = false;
+					busy_flag = 0;
+
+				/*
+				 * only remember a returned
+				 * POLL_BUSY_LOOP if we asked for it
+				 */
+				} else if (busy_flag & mask)
+					can_busy_loop = true;
+
 			}
 			if (res_in)
 				*rinp = res_in;
-- 
GitLab


From ae2b20f27732fe92055d9e7b350abc5cdf3e2414 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@grsecurity.net>
Date: Thu, 27 Jan 2022 18:34:19 +1000
Subject: [PATCH 3447/4878] drm/vmwgfx: Fix stale file descriptors on failed
 usercopy

commit a0f90c8815706981c483a652a6aefca51a5e191c upstream.

A failing usercopy of the fence_rep object will lead to a stale entry in
the file descriptor table as put_unused_fd() won't release it. This
enables userland to refer to a dangling 'file' object through that still
valid file descriptor, leading to all kinds of use-after-free
exploitation scenarios.

Fix this by deferring the call to fd_install() until after the usercopy
has succeeded.

Fixes: c906965dee22 ("drm/vmwgfx: Add export fence to file descriptor support")
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.h     |  5 ++--
 drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 33 +++++++++++++------------
 drivers/gpu/drm/vmwgfx/vmwgfx_fence.c   |  2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c     |  2 +-
 4 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 1523b51a7284c..ad208a5f4ebe5 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -1088,15 +1088,14 @@ extern int vmw_execbuf_fence_commands(struct drm_file *file_priv,
 				      struct vmw_private *dev_priv,
 				      struct vmw_fence_obj **p_fence,
 				      uint32_t *p_handle);
-extern void vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
+extern int vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 					struct vmw_fpriv *vmw_fp,
 					int ret,
 					struct drm_vmw_fence_rep __user
 					*user_fence_rep,
 					struct vmw_fence_obj *fence,
 					uint32_t fence_handle,
-					int32_t out_fence_fd,
-					struct sync_file *sync_file);
+					int32_t out_fence_fd);
 bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd);
 
 /**
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 83e1b54eb8647..739cbc77d8867 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -3816,17 +3816,17 @@ int vmw_execbuf_fence_commands(struct drm_file *file_priv,
  * Also if copying fails, user-space will be unable to signal the fence object
  * so we wait for it immediately, and then unreference the user-space reference.
  */
-void
+int
 vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 			    struct vmw_fpriv *vmw_fp, int ret,
 			    struct drm_vmw_fence_rep __user *user_fence_rep,
 			    struct vmw_fence_obj *fence, uint32_t fence_handle,
-			    int32_t out_fence_fd, struct sync_file *sync_file)
+			    int32_t out_fence_fd)
 {
 	struct drm_vmw_fence_rep fence_rep;
 
 	if (user_fence_rep == NULL)
-		return;
+		return 0;
 
 	memset(&fence_rep, 0, sizeof(fence_rep));
 
@@ -3854,20 +3854,14 @@ vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
 	 * handle.
 	 */
 	if (unlikely(ret != 0) && (fence_rep.error == 0)) {
-		if (sync_file)
-			fput(sync_file->file);
-
-		if (fence_rep.fd != -1) {
-			put_unused_fd(fence_rep.fd);
-			fence_rep.fd = -1;
-		}
-
 		ttm_ref_object_base_unref(vmw_fp->tfile, fence_handle,
 					  TTM_REF_USAGE);
 		VMW_DEBUG_USER("Fence copy error. Syncing.\n");
 		(void) vmw_fence_obj_wait(fence, false, false,
 					  VMW_FENCE_WAIT_TIMEOUT);
 	}
+
+	return ret ? -EFAULT : 0;
 }
 
 /**
@@ -4209,16 +4203,23 @@ int vmw_execbuf_process(struct drm_file *file_priv,
 
 			(void) vmw_fence_obj_wait(fence, false, false,
 						  VMW_FENCE_WAIT_TIMEOUT);
+		}
+	}
+
+	ret = vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
+				    user_fence_rep, fence, handle, out_fence_fd);
+
+	if (sync_file) {
+		if (ret) {
+			/* usercopy of fence failed, put the file object */
+			fput(sync_file->file);
+			put_unused_fd(out_fence_fd);
 		} else {
 			/* Link the fence with the FD created earlier */
 			fd_install(out_fence_fd, sync_file->file);
 		}
 	}
 
-	vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
-				    user_fence_rep, fence, handle, out_fence_fd,
-				    sync_file);
-
 	/* Don't unreference when handing fence out */
 	if (unlikely(out_fence != NULL)) {
 		*out_fence = fence;
@@ -4236,7 +4237,7 @@ int vmw_execbuf_process(struct drm_file *file_priv,
 	 */
 	vmw_validation_unref_lists(&val_ctx);
 
-	return 0;
+	return ret;
 
 out_unlock_binding:
 	mutex_unlock(&dev_priv->binding_mutex);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index 0f8d293971576..8bc41ec97d71a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1171,7 +1171,7 @@ int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
 	}
 
 	vmw_execbuf_copy_fence_user(dev_priv, vmw_fp, 0, user_fence_rep, fence,
-				    handle, -1, NULL);
+				    handle, -1);
 	vmw_fence_obj_unreference(&fence);
 	return 0;
 out_no_create:
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 312ed0881a99b..e58112997c881 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -2479,7 +2479,7 @@ void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
 	if (file_priv)
 		vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
 					    ret, user_fence_rep, fence,
-					    handle, -1, NULL);
+					    handle, -1);
 	if (out_fence)
 		*out_fence = fence;
 	else
-- 
GitLab


From 77656fde3c0125d6ef6f7fb46af6d2739d7b7141 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 29 Jan 2022 10:26:11 +0100
Subject: [PATCH 3448/4878] Linux 5.10.95

Link: https://lore.kernel.org/r/20220127180258.131170405@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 1071ec486aa5b..fa98893aae615 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 94
+SUBLEVEL = 95
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 0da4b942e06d7bd1099f122b04aac9fe798e7196 Mon Sep 17 00:00:00 2001
From: Vincent Palomares <paillon@google.com>
Date: Fri, 28 Jan 2022 14:13:58 -0800
Subject: [PATCH 3449/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 207573242
Change-Id: Iae4d5874fcf94f8b7f46554ccb60f4a41e383f59
Signed-off-by: Vincent Palomares <paillon@google.com>
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 8b3c65b18310a..41e7c609b1272 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -779,6 +779,7 @@
   dw_pcie_write
   __dynamic_dev_dbg
   __dynamic_pr_debug
+  em_cpu_get
   emergency_restart
   enable_irq
   enable_percpu_irq
-- 
GitLab


From 83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba Mon Sep 17 00:00:00 2001
From: Brian Gix <brian.gix@intel.com>
Date: Wed, 24 Nov 2021 12:16:28 -0800
Subject: [PATCH 3450/4878] Bluetooth: refactor malicious adv data check

commit 899663be5e75dc0174dc8bda0b5e6826edf0b29a upstream.

Check for out-of-bound read was being performed at the end of while
num_reports loop, and would fill journal with false positives. Added
check to beginning of loop processing so that it doesn't get checked
after ptr has been advanced.

Signed-off-by: Brian Gix <brian.gix@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: syphyr <syphyr@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/bluetooth/hci_event.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7ffcca9ae82a1..72b4127360c7f 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5661,6 +5661,11 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		struct hci_ev_le_advertising_info *ev = ptr;
 		s8 rssi;
 
+		if (ptr > (void *)skb_tail_pointer(skb) - sizeof(*ev)) {
+			bt_dev_err(hdev, "Malicious advertising data.");
+			break;
+		}
+
 		if (ev->length <= HCI_MAX_AD_LENGTH &&
 		    ev->data + ev->length <= skb_tail_pointer(skb)) {
 			rssi = ev->data[ev->length];
@@ -5672,11 +5677,6 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		}
 
 		ptr += sizeof(*ev) + ev->length + 1;
-
-		if (ptr > (void *) skb_tail_pointer(skb) - sizeof(*ev)) {
-			bt_dev_err(hdev, "Malicious advertising data. Stopping processing");
-			break;
-		}
 	}
 
 	hci_dev_unlock(hdev);
-- 
GitLab


From e651772adcedaf71b3ba102dfb6b7ad09f7a9ba4 Mon Sep 17 00:00:00 2001
From: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Date: Wed, 24 Mar 2021 15:59:17 +0100
Subject: [PATCH 3451/4878] media: venus: core: Drop second v4l2 device
 unregister

commit ddbcd0c58a6a53e2f1600b9de0ce6a20667c031c upstream.

Wrong solution of rebase conflict leads to calling twice
v4l2_device_unregister in .venus_remove. Delete the second one.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Martin Faltesek <mfaltesek@google.com>
Cc: Guenter Roeck <groeck@google.com>
Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/qcom/venus/core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 1d621f7769035..62d11c6e41d60 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -375,8 +375,6 @@ static int venus_remove(struct platform_device *pdev)
 
 	hfi_destroy(core);
 
-	v4l2_device_unregister(&core->v4l2_dev);
-
 	mutex_destroy(&core->pm_lock);
 	mutex_destroy(&core->lock);
 	venus_dbgfs_deinit(core);
-- 
GitLab


From 11191406f2f18982f703d1b0676569ce7377d24f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Wed, 19 Jan 2022 17:44:55 +0100
Subject: [PATCH 3452/4878] net: sfp: ignore disabled SFP node
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 2148927e6ed43a1667baf7c2ae3e0e05a44b51a0 upstream.

Commit ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices
and sfp cages") added code which finds SFP bus DT node even if the node
is disabled with status = "disabled". Because of this, when phylink is
created, it ends with non-null .sfp_bus member, even though the SFP
module is not probed (because the node is disabled).

We need to ignore disabled SFP bus node.

Fixes: ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages")
Signed-off-by: Marek Behún <kabel@kernel.org>
Cc: stable@vger.kernel.org # 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/sfp-bus.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index 4cf874fb5c5b4..a05d8372669c1 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -609,6 +609,11 @@ struct sfp_bus *sfp_bus_find_fwnode(struct fwnode_handle *fwnode)
 	else if (ret < 0)
 		return ERR_PTR(ret);
 
+	if (!fwnode_device_is_available(ref.fwnode)) {
+		fwnode_handle_put(ref.fwnode);
+		return NULL;
+	}
+
 	bus = sfp_bus_get(ref.fwnode);
 	fwnode_handle_put(ref.fwnode);
 	if (!bus)
-- 
GitLab


From ba7c71a777c10a7ffee121e097ccd46096a76155 Mon Sep 17 00:00:00 2001
From: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Date: Wed, 26 Jan 2022 17:47:23 +0800
Subject: [PATCH 3453/4878] net: stmmac: skip only stmmac_ptp_register when
 resume from suspend

commit 0735e639f129dff455aeb91da291f5c578cc33db upstream.

When resume from suspend, besides skipping PTP registration, it also
skipping PTP HW initialization. This could cause PTP clock not able to
operate properly when resume from suspend.

To fix this, only stmmac_ptp_register() is skipped when resume from
suspend.

Fixes: fe1319291150 ("stmmac: Don't init ptp again when resume from suspend/hibernation")
Cc: <stable@vger.kernel.org> # 5.15.x
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/stmicro/stmmac/stmmac_main.c | 20 +++++++++----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a8c5492cb39be..6d8a839fab22e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -816,8 +816,6 @@ static int stmmac_init_ptp(struct stmmac_priv *priv)
 	priv->hwts_tx_en = 0;
 	priv->hwts_rx_en = 0;
 
-	stmmac_ptp_register(priv);
-
 	return 0;
 }
 
@@ -2691,7 +2689,7 @@ static void stmmac_safety_feat_configuration(struct stmmac_priv *priv)
 /**
  * stmmac_hw_setup - setup mac in a usable state.
  *  @dev : pointer to the device structure.
- *  @init_ptp: initialize PTP if set
+ *  @ptp_register: register PTP if set
  *  Description:
  *  this is the main function to setup the HW in a usable state because the
  *  dma engine is reset, the core registers are configured (e.g. AXI,
@@ -2701,7 +2699,7 @@ static void stmmac_safety_feat_configuration(struct stmmac_priv *priv)
  *  0 on success and an appropriate (-)ve integer as defined in errno.h
  *  file on failure.
  */
-static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
+static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 	u32 rx_cnt = priv->plat->rx_queues_to_use;
@@ -2757,13 +2755,13 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
 
 	stmmac_mmc_setup(priv);
 
-	if (init_ptp) {
-		ret = stmmac_init_ptp(priv);
-		if (ret == -EOPNOTSUPP)
-			netdev_warn(priv->dev, "PTP not supported by HW\n");
-		else if (ret)
-			netdev_warn(priv->dev, "PTP init failed\n");
-	}
+	ret = stmmac_init_ptp(priv);
+	if (ret == -EOPNOTSUPP)
+		netdev_warn(priv->dev, "PTP not supported by HW\n");
+	else if (ret)
+		netdev_warn(priv->dev, "PTP init failed\n");
+	else if (ptp_register)
+		stmmac_ptp_register(priv);
 
 	priv->eee_tw_timer = STMMAC_DEFAULT_TWT_LS;
 
-- 
GitLab


From c10e0627c71c13b6f491e4a193abc84d9f08727e Mon Sep 17 00:00:00 2001
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Wed, 19 Jan 2022 19:26:37 +0100
Subject: [PATCH 3454/4878] s390/module: fix loading modules with a lot of
 relocations

commit f3b7e73b2c6619884351a3a0a7468642f852b8a2 upstream.

If the size of the PLT entries generated by apply_rela() exceeds
64KiB, the first ones can no longer reach __jump_r1 with brc. Fix by
using brcl. An alternative solution is to add a __jump_r1 copy after
every 64KiB, however, the space savings are quite small and do not
justify the additional complexity.

Fixes: f19fbd5ed642 ("s390: introduce execute-trampolines for branches")
Cc: stable@vger.kernel.org
Reported-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/kernel/module.c | 37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)

diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 4055f1c498147..b81bc96216b97 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -30,7 +30,7 @@
 #define DEBUGP(fmt , ...)
 #endif
 
-#define PLT_ENTRY_SIZE 20
+#define PLT_ENTRY_SIZE 22
 
 void *module_alloc(unsigned long size)
 {
@@ -330,27 +330,26 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
 	case R_390_PLTOFF32:	/* 32 bit offset from GOT to PLT. */
 	case R_390_PLTOFF64:	/* 16 bit offset from GOT to PLT. */
 		if (info->plt_initialized == 0) {
-			unsigned int insn[5];
-			unsigned int *ip = me->core_layout.base +
-					   me->arch.plt_offset +
-					   info->plt_offset;
-
-			insn[0] = 0x0d10e310;	/* basr 1,0  */
-			insn[1] = 0x100a0004;	/* lg	1,10(1) */
+			unsigned char insn[PLT_ENTRY_SIZE];
+			char *plt_base;
+			char *ip;
+
+			plt_base = me->core_layout.base + me->arch.plt_offset;
+			ip = plt_base + info->plt_offset;
+			*(int *)insn = 0x0d10e310;	/* basr 1,0  */
+			*(int *)&insn[4] = 0x100c0004;	/* lg	1,12(1) */
 			if (IS_ENABLED(CONFIG_EXPOLINE) && !nospec_disable) {
-				unsigned int *ij;
-				ij = me->core_layout.base +
-					me->arch.plt_offset +
-					me->arch.plt_size - PLT_ENTRY_SIZE;
-				insn[2] = 0xa7f40000 +	/* j __jump_r1 */
-					(unsigned int)(u16)
-					(((unsigned long) ij - 8 -
-					  (unsigned long) ip) / 2);
+				char *jump_r1;
+
+				jump_r1 = plt_base + me->arch.plt_size -
+					PLT_ENTRY_SIZE;
+				/* brcl	0xf,__jump_r1 */
+				*(short *)&insn[8] = 0xc0f4;
+				*(int *)&insn[10] = (jump_r1 - (ip + 8)) / 2;
 			} else {
-				insn[2] = 0x07f10000;	/* br %r1 */
+				*(int *)&insn[8] = 0x07f10000;	/* br %r1 */
 			}
-			insn[3] = (unsigned int) (val >> 32);
-			insn[4] = (unsigned int) val;
+			*(long *)&insn[14] = val;
 
 			write(ip, insn, sizeof(insn));
 			info->plt_initialized = 1;
-- 
GitLab


From 6520fedfcebb618bd3ff517222f9f0c72104728b Mon Sep 17 00:00:00 2001
From: Vasily Gorbik <gor@linux.ibm.com>
Date: Thu, 20 Jan 2022 16:23:19 +0100
Subject: [PATCH 3455/4878] s390/hypfs: include z/VM guests with access control
 group set

commit 663d34c8df98740f1e90241e78e456d00b3c6cad upstream.

Currently if z/VM guest is allowed to retrieve hypervisor performance
data globally for all guests (privilege class B) the query is formed in a
way to include all guests but the group name is left empty. This leads to
that z/VM guests which have access control group set not being included
in the results (even local vm).

Change the query group identifier from empty to "any" to retrieve
information about all guests from any groups (or without a group set).

Cc: stable@vger.kernel.org
Fixes: 31cb4bd31a48 ("[S390] Hypervisor filesystem (s390_hypfs) for z/VM")
Reviewed-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/hypfs/hypfs_vm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index e1fcc03159ef2..a927adccb4ba7 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -20,6 +20,7 @@
 
 static char local_guest[] = "        ";
 static char all_guests[] = "*       ";
+static char *all_groups = all_guests;
 static char *guest_query;
 
 struct diag2fc_data {
@@ -62,10 +63,11 @@ static int diag2fc(int size, char* query, void *addr)
 
 	memcpy(parm_list.userid, query, NAME_LEN);
 	ASCEBC(parm_list.userid, NAME_LEN);
-	parm_list.addr = (unsigned long) addr ;
+	memcpy(parm_list.aci_grp, all_groups, NAME_LEN);
+	ASCEBC(parm_list.aci_grp, NAME_LEN);
+	parm_list.addr = (unsigned long)addr;
 	parm_list.size = size;
 	parm_list.fmt = 0x02;
-	memset(parm_list.aci_grp, 0x40, NAME_LEN);
 	rc = -1;
 
 	diag_stat_inc(DIAG_STAT_X2FC);
-- 
GitLab


From ff6bdc205fd0a83bd365405d4e31fb5905826996 Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Thu, 6 Jan 2022 17:15:05 +0530
Subject: [PATCH 3456/4878] bpf: Guard against accessing NULL pt_regs in
 bpf_get_task_stack()

commit b992f01e66150fc5e90be4a96f5eb8e634c8249e upstream.

task_pt_regs() can return NULL on powerpc for kernel threads. This is
then used in __bpf_get_stack() to check for user mode, resulting in a
kernel oops. Guard against this by checking return value of
task_pt_regs() before trying to obtain the call chain.

Fixes: fa28dcb82a38f8 ("bpf: Introduce helper bpf_get_task_stack()")
Cc: stable@vger.kernel.org # v5.9+
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d5ef83c361cc255494afd15ff1b4fb02a36e1dcf.1641468127.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/stackmap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
index 4477873ac3a0b..56cd7e6589ff3 100644
--- a/kernel/bpf/stackmap.c
+++ b/kernel/bpf/stackmap.c
@@ -664,13 +664,14 @@ BPF_CALL_4(bpf_get_task_stack, struct task_struct *, task, void *, buf,
 	   u32, size, u64, flags)
 {
 	struct pt_regs *regs;
-	long res;
+	long res = -EINVAL;
 
 	if (!try_get_task_stack(task))
 		return -EFAULT;
 
 	regs = task_pt_regs(task);
-	res = __bpf_get_stack(regs, task, NULL, buf, size, flags);
+	if (regs)
+		res = __bpf_get_stack(regs, task, NULL, buf, size, flags);
 	put_task_stack(task);
 
 	return res;
-- 
GitLab


From f08801252d26c3a3f2a351509c1168965eabaa28 Mon Sep 17 00:00:00 2001
From: Steffen Maier <maier@linux.ibm.com>
Date: Tue, 18 Jan 2022 17:58:03 +0100
Subject: [PATCH 3457/4878] scsi: zfcp: Fix failed recovery on gone remote port
 with non-NPIV FCP devices

commit 8c9db6679be4348b8aae108e11d4be2f83976e30 upstream.

Suppose we have an environment with a number of non-NPIV FCP devices
(virtual HBAs / FCP devices / zfcp "adapter"s) sharing the same physical
FCP channel (HBA port) and its I_T nexus. Plus a number of storage target
ports zoned to such shared channel. Now one target port logs out of the
fabric causing an RSCN. Zfcp reacts with an ADISC ELS and subsequent port
recovery depending on the ADISC result. This happens on all such FCP
devices (in different Linux images) concurrently as they all receive a copy
of this RSCN. In the following we look at one of those FCP devices.

Requests other than FSF_QTCB_FCP_CMND can be slow until they get a
response.

Depending on which requests are affected by slow responses, there are
different recovery outcomes. Here we want to fix failed recoveries on port
or adapter level by avoiding recovery requests that can be slow.

We need the cached N_Port_ID for the remote port "link" test with ADISC.
Just before sending the ADISC, we now intentionally forget the old cached
N_Port_ID. The idea is that on receiving an RSCN for a port, we have to
assume that any cached information about this port is stale.  This forces a
fresh new GID_PN [FC-GS] nameserver lookup on any subsequent recovery for
the same port. Since we typically can still communicate with the nameserver
efficiently, we now reach steady state quicker: Either the nameserver still
does not know about the port so we stop recovery, or the nameserver already
knows the port potentially with a new N_Port_ID and we can successfully and
quickly perform open port recovery.  For the one case, where ADISC returns
successfully, we re-initialize port->d_id because that case does not
involve any port recovery.

This also solves a problem if the storage WWPN quickly logs into the fabric
again but with a different N_Port_ID. Such as on virtual WWPN takeover
during target NPIV failover.
[https://www.redbooks.ibm.com/abstracts/redp5477.html] In that case the
RSCN from the storage FDISC was ignored by zfcp and we could not
successfully recover the failover. On some later failback on the storage,
we could have been lucky if the virtual WWPN got the same old N_Port_ID
from the SAN switch as we still had cached.  Then the related RSCN
triggered a successful port reopen recovery.  However, there is no
guarantee to get the same N_Port_ID on NPIV FDISC.

Even though NPIV-enabled FCP devices are not affected by this problem, this
code change optimizes recovery time for gone remote ports as a side effect.
The timely drop of cached N_Port_IDs prevents unnecessary slow open port
attempts.

While the problem might have been in code before v2.6.32 commit
799b76d09aee ("[SCSI] zfcp: Decouple gid_pn requests from erp") this fix
depends on the gid_pn_work introduced with that commit, so we mark it as
culprit to satisfy fix dependencies.

Note: Point-to-point remote port is already handled separately and gets its
N_Port_ID from the cached peer_d_id. So resetting port->d_id in general
does not affect PtP.

Link: https://lore.kernel.org/r/20220118165803.3667947-1-maier@linux.ibm.com
Fixes: 799b76d09aee ("[SCSI] zfcp: Decouple gid_pn requests from erp")
Cc: <stable@vger.kernel.org> #2.6.32+
Suggested-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/scsi/zfcp_fc.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index d24cafe02708f..511bf8e0a436c 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -521,6 +521,8 @@ static void zfcp_fc_adisc_handler(void *data)
 		goto out;
 	}
 
+	/* re-init to undo drop from zfcp_fc_adisc() */
+	port->d_id = ntoh24(adisc_resp->adisc_port_id);
 	/* port is good, unblock rport without going through erp */
 	zfcp_scsi_schedule_rport_register(port);
  out:
@@ -534,6 +536,7 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
 	struct zfcp_fc_req *fc_req;
 	struct zfcp_adapter *adapter = port->adapter;
 	struct Scsi_Host *shost = adapter->scsi_host;
+	u32 d_id;
 	int ret;
 
 	fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_ATOMIC);
@@ -558,7 +561,15 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
 	fc_req->u.adisc.req.adisc_cmd = ELS_ADISC;
 	hton24(fc_req->u.adisc.req.adisc_port_id, fc_host_port_id(shost));
 
-	ret = zfcp_fsf_send_els(adapter, port->d_id, &fc_req->ct_els,
+	d_id = port->d_id; /* remember as destination for send els below */
+	/*
+	 * Force fresh GID_PN lookup on next port recovery.
+	 * Must happen after request setup and before sending request,
+	 * to prevent race with port->d_id re-init in zfcp_fc_adisc_handler().
+	 */
+	port->d_id = 0;
+
+	ret = zfcp_fsf_send_els(adapter, d_id, &fc_req->ct_els,
 				ZFCP_FC_CTELS_TMO);
 	if (ret)
 		kmem_cache_free(zfcp_fc_req_cache, fc_req);
-- 
GitLab


From 0a3cfd258923aee63e7f144f134d42e205421848 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 18 Jan 2022 09:57:25 +0100
Subject: [PATCH 3458/4878] udf: Restore i_lenAlloc when inode expansion fails

commit ea8569194b43f0f01f0a84c689388542c7254a1f upstream.

When we fail to expand inode from inline format to a normal format, we
restore inode to contain the original inline formatting but we forgot to
set i_lenAlloc back. The mismatch between i_lenAlloc and i_size was then
causing further problems such as warnings and lost data down the line.

Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
CC: stable@vger.kernel.org
Fixes: 7e49b6f2480c ("udf: Convert UDF to new truncate calling sequence")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/udf/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 0dd2f93ac0480..b09a433de493b 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -316,6 +316,7 @@ int udf_expand_file_adinicb(struct inode *inode)
 		unlock_page(page);
 		iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
 		inode->i_data.a_ops = &udf_adinicb_aops;
+		iinfo->i_lenAlloc = inode->i_size;
 		up_write(&iinfo->i_data_sem);
 	}
 	put_page(page);
-- 
GitLab


From de7cc8bcca90a9d77c915ee1d922dbd670c47d84 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Mon, 17 Jan 2022 18:22:13 +0100
Subject: [PATCH 3459/4878] udf: Fix NULL ptr deref when converting from inline
 format

commit 7fc3b7c2981bbd1047916ade327beccb90994eee upstream.

udf_expand_file_adinicb() calls directly ->writepage to write data
expanded into a page. This however misses to setup inode for writeback
properly and so we can crash on inode->i_wb dereference when submitting
page for IO like:

  BUG: kernel NULL pointer dereference, address: 0000000000000158
  #PF: supervisor read access in kernel mode
...
  <TASK>
  __folio_start_writeback+0x2ac/0x350
  __block_write_full_page+0x37d/0x490
  udf_expand_file_adinicb+0x255/0x400 [udf]
  udf_file_write_iter+0xbe/0x1b0 [udf]
  new_sync_write+0x125/0x1c0
  vfs_write+0x28e/0x400

Fix the problem by marking the page dirty and going through the standard
writeback path to write the page. Strictly speaking we would not even
have to write the page but we want to catch e.g. ENOSPC errors early.

Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com>
CC: stable@vger.kernel.org
Fixes: 52ebea749aae ("writeback: make backing_dev_info host cgroup-specific bdi_writebacks")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/udf/inode.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index b09a433de493b..d32b836f6ca74 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -257,10 +257,6 @@ int udf_expand_file_adinicb(struct inode *inode)
 	char *kaddr;
 	struct udf_inode_info *iinfo = UDF_I(inode);
 	int err;
-	struct writeback_control udf_wbc = {
-		.sync_mode = WB_SYNC_NONE,
-		.nr_to_write = 1,
-	};
 
 	WARN_ON_ONCE(!inode_is_locked(inode));
 	if (!iinfo->i_lenAlloc) {
@@ -304,8 +300,10 @@ int udf_expand_file_adinicb(struct inode *inode)
 		iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
 	/* from now on we have normal address_space methods */
 	inode->i_data.a_ops = &udf_aops;
+	set_page_dirty(page);
+	unlock_page(page);
 	up_write(&iinfo->i_data_sem);
-	err = inode->i_data.a_ops->writepage(page, &udf_wbc);
+	err = filemap_fdatawrite(inode->i_mapping);
 	if (err) {
 		/* Restore everything back so that we don't lose data... */
 		lock_page(page);
-- 
GitLab


From b0f1cc093bc2493ac259c53766fd2b800e085807 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@kernel.org>
Date: Wed, 12 Jan 2022 11:14:13 +0100
Subject: [PATCH 3460/4878] efi: runtime: avoid EFIv2 runtime services on Apple
 x86 machines

commit f5390cd0b43c2e54c7cf5506c7da4a37c5cef746 upstream.

Aditya reports [0] that his recent MacbookPro crashes in the firmware
when using the variable services at runtime. The culprit appears to be a
call to QueryVariableInfo(), which we did not use to call on Apple x86
machines in the past as they only upgraded from EFI v1.10 to EFI v2.40
firmware fairly recently, and QueryVariableInfo() (along with
UpdateCapsule() et al) was added in EFI v2.00.

The only runtime service introduced in EFI v2.00 that we actually use in
Linux is QueryVariableInfo(), as the capsule based ones are optional,
generally not used at runtime (all the LVFS/fwupd firmware update
infrastructure uses helper EFI programs that invoke capsule update at
boot time, not runtime), and not implemented by Apple machines in the
first place. QueryVariableInfo() is used to 'safely' set variables,
i.e., only when there is enough space. This prevents machines with buggy
firmwares from corrupting their NVRAMs when they run out of space.

Given that Apple machines have been using EFI v1.10 services only for
the longest time (the EFI v2.0 spec was released in 2006, and Linux
support for the newly introduced runtime services was added in 2011, but
the MacbookPro12,1 released in 2015 still claims to be EFI v1.10 only),
let's avoid the EFI v2.0 ones on all Apple x86 machines.

[0] https://lore.kernel.org/all/6D757C75-65B1-468B-842D-10410081A8E4@live.com/

Cc: <stable@vger.kernel.org>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Reported-by: Aditya Garg <gargaditya08@live.com>
Tested-by: Orlando Chamberlain <redecorating@protonmail.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Aditya Garg <gargaditya08@live.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215277
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/efi/efi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 847f33ffc4aed..9fa86288b78a9 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -719,6 +719,13 @@ void __init efi_systab_report_header(const efi_table_hdr_t *systab_hdr,
 		systab_hdr->revision >> 16,
 		systab_hdr->revision & 0xffff,
 		vendor);
+
+	if (IS_ENABLED(CONFIG_X86_64) &&
+	    systab_hdr->revision > EFI_1_10_SYSTEM_TABLE_REVISION &&
+	    !strcmp(vendor, "Apple")) {
+		pr_info("Apple Mac detected, using EFI v1.10 runtime services only\n");
+		efi.runtime_version = EFI_1_10_SYSTEM_TABLE_REVISION;
+	}
 }
 
 static __initdata char memory_type_name[][13] = {
-- 
GitLab


From 561a22d44acc3914d65c9a995540945b0c6b766d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 13 Jan 2022 19:44:20 +0100
Subject: [PATCH 3461/4878] PM: wakeup: simplify the output logic of
 pm_show_wakelocks()

commit c9d967b2ce40d71e968eb839f36c936b8a9cf1ea upstream.

The buffer handling in pm_show_wakelocks() is tricky, and hopefully
correct.  Ensure it really is correct by using sysfs_emit_at() which
handles all of the tricky string handling logic in a PAGE_SIZE buffer
for us automatically as this is a sysfs file being read from.

Reviewed-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/power/wakelock.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.c
index 105df4dfc7839..52571dcad768b 100644
--- a/kernel/power/wakelock.c
+++ b/kernel/power/wakelock.c
@@ -39,23 +39,20 @@ ssize_t pm_show_wakelocks(char *buf, bool show_active)
 {
 	struct rb_node *node;
 	struct wakelock *wl;
-	char *str = buf;
-	char *end = buf + PAGE_SIZE;
+	int len = 0;
 
 	mutex_lock(&wakelocks_lock);
 
 	for (node = rb_first(&wakelocks_tree); node; node = rb_next(node)) {
 		wl = rb_entry(node, struct wakelock, node);
 		if (wl->ws->active == show_active)
-			str += scnprintf(str, end - str, "%s ", wl->name);
+			len += sysfs_emit_at(buf, len, "%s ", wl->name);
 	}
-	if (str > buf)
-		str--;
 
-	str += scnprintf(str, end - str, "\n");
+	len += sysfs_emit_at(buf, len, "\n");
 
 	mutex_unlock(&wakelocks_lock);
-	return (str - buf);
+	return len;
 }
 
 #if CONFIG_PM_WAKELOCKS_LIMIT > 0
-- 
GitLab


From d71b06aa995007eafd247626d0669b9364c42ad7 Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@foxmail.com>
Date: Tue, 25 Jan 2022 12:07:15 +0800
Subject: [PATCH 3462/4878] tracing/histogram: Fix a potential memory leak for
 kstrdup()

commit e629e7b525a179e29d53463d992bdee759c950fb upstream.

kfree() is missing on an error path to free the memory allocated by
kstrdup():

  p = param = kstrdup(data->params[i], GFP_KERNEL);

So it is better to free it via kfree(p).

Link: https://lkml.kernel.org/r/tencent_C52895FD37802832A3E5B272D05008866F0A@qq.com

Cc: stable@vger.kernel.org
Fixes: d380dcde9a07c ("tracing: Fix now invalid var_ref_vals assumption in trace action")
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events_hist.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 003e5f37861e3..1557a20b6500e 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -3506,6 +3506,7 @@ static int trace_action_create(struct hist_trigger_data *hist_data,
 
 			var_ref_idx = find_var_ref_idx(hist_data, var_ref);
 			if (WARN_ON(var_ref_idx < 0)) {
+				kfree(p);
 				ret = var_ref_idx;
 				goto err;
 			}
-- 
GitLab


From 39986696fef531fde14c87038dcef9537e6aee87 Mon Sep 17 00:00:00 2001
From: Tom Zanussi <zanussi@kernel.org>
Date: Thu, 27 Jan 2022 15:44:18 -0600
Subject: [PATCH 3463/4878] tracing: Don't inc err_log entry count if entry
 allocation fails

commit 67ab5eb71b37b55f7c5522d080a1b42823351776 upstream.

tr->n_err_log_entries should only be increased if entry allocation
succeeds.

Doing it when it fails won't cause any problems other than wasting an
entry, but should be fixed anyway.

Link: https://lkml.kernel.org/r/cad1ab28f75968db0f466925e7cba5970cec6c29.1643319703.git.zanussi@kernel.org

Cc: stable@vger.kernel.org
Fixes: 2f754e771b1a6 ("tracing: Don't inc err_log entry count if entry allocation fails")
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index cd2d094b9f820..a0729213f37be 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -7257,7 +7257,8 @@ static struct tracing_log_err *get_tracing_log_err(struct trace_array *tr)
 		err = kzalloc(sizeof(*err), GFP_KERNEL);
 		if (!err)
 			err = ERR_PTR(-ENOMEM);
-		tr->n_err_log_entries++;
+		else
+			tr->n_err_log_entries++;
 
 		return err;
 	}
-- 
GitLab


From e7be12ca7d3947765b0d7c1c7e0537e748da993a Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@kernel.org>
Date: Tue, 25 Jan 2022 15:39:16 -0500
Subject: [PATCH 3464/4878] ceph: properly put ceph_string reference after
 async create attempt

commit 932a9b5870d38b87ba0a9923c804b1af7d3605b9 upstream.

The reference acquired by try_prep_async_create is currently leaked.
Ensure we put it.

Cc: stable@vger.kernel.org
Fixes: 9a8d03ca2e2c ("ceph: attempt to do async create when possible")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ceph/file.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 8ed881fd7440d..ab0101ffe6c9c 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -743,8 +743,10 @@ retry:
 				restore_deleg_ino(dir, req->r_deleg_ino);
 				ceph_mdsc_put_request(req);
 				try_async = false;
+				ceph_put_string(rcu_dereference_raw(lo.pool_ns));
 				goto retry;
 			}
+			ceph_put_string(rcu_dereference_raw(lo.pool_ns));
 			goto out_req;
 		}
 	}
-- 
GitLab


From 6ceac38e9b0cafe8a27eb8dbfa36ed08b3259e33 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@kernel.org>
Date: Wed, 26 Jan 2022 12:36:49 -0500
Subject: [PATCH 3465/4878] ceph: set pool_ns in new inode layout for async
 creates

commit 4584a768f22b7669cdebabc911543621ac661341 upstream.

Dan reported that he was unable to write to files that had been
asynchronously created when the client's OSD caps are restricted to a
particular namespace.

The issue is that the layout for the new inode is only partially being
filled. Ensure that we populate the pool_ns_data and pool_ns_len in the
iinfo before calling ceph_fill_inode.

Cc: stable@vger.kernel.org
URL: https://tracker.ceph.com/issues/54013
Fixes: 9a8d03ca2e2c ("ceph: attempt to do async create when possible")
Reported-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ceph/file.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index ab0101ffe6c9c..450050801f3b6 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -577,6 +577,7 @@ static int ceph_finish_async_create(struct inode *dir, struct dentry *dentry,
 	struct ceph_inode_info *ci = ceph_inode(dir);
 	struct inode *inode;
 	struct timespec64 now;
+	struct ceph_string *pool_ns;
 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(dir->i_sb);
 	struct ceph_vino vino = { .ino = req->r_deleg_ino,
 				  .snap = CEPH_NOSNAP };
@@ -626,6 +627,12 @@ static int ceph_finish_async_create(struct inode *dir, struct dentry *dentry,
 	in.max_size = cpu_to_le64(lo->stripe_unit);
 
 	ceph_file_layout_to_legacy(lo, &in.layout);
+	/* lo is private, so pool_ns can't change */
+	pool_ns = rcu_dereference_raw(lo->pool_ns);
+	if (pool_ns) {
+		iinfo.pool_ns_len = pool_ns->len;
+		iinfo.pool_ns_data = pool_ns->str;
+	}
 
 	down_read(&mdsc->snap_rwsem);
 	ret = ceph_fill_inode(inode, NULL, &iinfo, NULL, req->r_session,
-- 
GitLab


From abae88fb37bf02ce297882bf4bc2d94cb2257cd1 Mon Sep 17 00:00:00 2001
From: Amir Goldstein <amir73il@gmail.com>
Date: Thu, 20 Jan 2022 23:53:05 +0200
Subject: [PATCH 3466/4878] fsnotify: fix fsnotify hooks in pseudo filesystems

commit 29044dae2e746949ad4b9cbdbfb248994d1dcdb4 upstream.

Commit 49246466a989 ("fsnotify: move fsnotify_nameremove() hook out of
d_delete()") moved the fsnotify delete hook before d_delete() so fsnotify
will have access to a positive dentry.

This allowed a race where opening the deleted file via cached dentry
is now possible after receiving the IN_DELETE event.

To fix the regression in pseudo filesystems, convert d_delete() calls
to d_drop() (see commit 46c46f8df9aa ("devpts_pty_kill(): don't bother
with d_delete()") and move the fsnotify hook after d_drop().

Add a missing fsnotify_unlink() hook in nfsdfs that was found during
the audit of fsnotify hooks in pseudo filesystems.

Note that the fsnotify hooks in simple_recursive_removal() follow
d_invalidate(), so they require no change.

Link: https://lore.kernel.org/r/20220120215305.282577-2-amir73il@gmail.com
Reported-by: Ivan Delalande <colona@arista.com>
Link: https://lore.kernel.org/linux-fsdevel/YeNyzoDM5hP5LtGW@visor/
Fixes: 49246466a989 ("fsnotify: move fsnotify_nameremove() hook out of d_delete()")
Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/configfs/dir.c     | 6 +++---
 fs/devpts/inode.c     | 2 +-
 fs/nfsd/nfsctl.c      | 5 +++--
 net/sunrpc/rpc_pipe.c | 4 ++--
 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index b0983e2a4e2c7..32ddad3ec5d53 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1805,8 +1805,8 @@ void configfs_unregister_group(struct config_group *group)
 	configfs_detach_group(&group->cg_item);
 	d_inode(dentry)->i_flags |= S_DEAD;
 	dont_mount(dentry);
+	d_drop(dentry);
 	fsnotify_rmdir(d_inode(parent), dentry);
-	d_delete(dentry);
 	inode_unlock(d_inode(parent));
 
 	dput(dentry);
@@ -1947,10 +1947,10 @@ void configfs_unregister_subsystem(struct configfs_subsystem *subsys)
 	configfs_detach_group(&group->cg_item);
 	d_inode(dentry)->i_flags |= S_DEAD;
 	dont_mount(dentry);
-	fsnotify_rmdir(d_inode(root), dentry);
 	inode_unlock(d_inode(dentry));
 
-	d_delete(dentry);
+	d_drop(dentry);
+	fsnotify_rmdir(d_inode(root), dentry);
 
 	inode_unlock(d_inode(root));
 
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 42e5a766d33c7..4f25015aa5342 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -621,8 +621,8 @@ void devpts_pty_kill(struct dentry *dentry)
 
 	dentry->d_fsdata = NULL;
 	drop_nlink(dentry->d_inode);
-	fsnotify_unlink(d_inode(dentry->d_parent), dentry);
 	d_drop(dentry);
+	fsnotify_unlink(d_inode(dentry->d_parent), dentry);
 	dput(dentry);	/* d_alloc_name() in devpts_pty_new() */
 }
 
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index a8f954bbde4f5..dedec4771ecc2 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1247,7 +1247,8 @@ static void nfsdfs_remove_file(struct inode *dir, struct dentry *dentry)
 	clear_ncl(d_inode(dentry));
 	dget(dentry);
 	ret = simple_unlink(dir, dentry);
-	d_delete(dentry);
+	d_drop(dentry);
+	fsnotify_unlink(dir, dentry);
 	dput(dentry);
 	WARN_ON_ONCE(ret);
 }
@@ -1336,8 +1337,8 @@ void nfsd_client_rmdir(struct dentry *dentry)
 	dget(dentry);
 	ret = simple_rmdir(dir, dentry);
 	WARN_ON_ONCE(ret);
+	d_drop(dentry);
 	fsnotify_rmdir(dir, dentry);
-	d_delete(dentry);
 	dput(dentry);
 	inode_unlock(dir);
 }
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index eadc0ede928c3..5f854ffbab925 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -599,9 +599,9 @@ static int __rpc_rmdir(struct inode *dir, struct dentry *dentry)
 
 	dget(dentry);
 	ret = simple_rmdir(dir, dentry);
+	d_drop(dentry);
 	if (!ret)
 		fsnotify_rmdir(dir, dentry);
-	d_delete(dentry);
 	dput(dentry);
 	return ret;
 }
@@ -612,9 +612,9 @@ static int __rpc_unlink(struct inode *dir, struct dentry *dentry)
 
 	dget(dentry);
 	ret = simple_unlink(dir, dentry);
+	d_drop(dentry);
 	if (!ret)
 		fsnotify_unlink(dir, dentry);
-	d_delete(dentry);
 	dput(dentry);
 	return ret;
 }
-- 
GitLab


From a2c8e1d9e41b7d916257653d3bbe36418c4e7b88 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 20 Jan 2022 01:07:12 +0000
Subject: [PATCH 3467/4878] Revert "KVM: SVM: avoid infinite loop on NPF from
 bad address"

commit 31c25585695abdf03d6160aa6d829e855b256329 upstream.

Revert a completely broken check on an "invalid" RIP in SVM's workaround
for the DecodeAssists SMAP errata.  kvm_vcpu_gfn_to_memslot() obviously
expects a gfn, i.e. operates in the guest physical address space, whereas
RIP is a virtual (not even linear) address.  The "fix" worked for the
problematic KVM selftest because the test identity mapped RIP.

Fully revert the hack instead of trying to translate RIP to a GPA, as the
non-SEV case is now handled earlier, and KVM cannot access guest page
tables to translate RIP.

This reverts commit e72436bc3a5206f95bb384e741154166ddb3202e.

Fixes: e72436bc3a52 ("KVM: SVM: avoid infinite loop on NPF from bad address")
Reported-by: Liam Merwick <liam.merwick@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Message-Id: <20220120010719.711476-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/svm/svm.c | 7 -------
 virt/kvm/kvm_main.c    | 1 -
 2 files changed, 8 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 5e1d7396a6b8a..2e6332af98aba 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4146,13 +4146,6 @@ static bool svm_can_emulate_instruction(struct kvm_vcpu *vcpu, void *insn, int i
 	if (likely(!insn || insn_len))
 		return true;
 
-	/*
-	 * If RIP is invalid, go ahead with emulation which will cause an
-	 * internal error exit.
-	 */
-	if (!kvm_vcpu_gfn_to_memslot(vcpu, kvm_rip_read(vcpu) >> PAGE_SHIFT))
-		return true;
-
 	cr4 = kvm_read_cr4(vcpu);
 	smep = cr4 & X86_CR4_SMEP;
 	smap = cr4 & X86_CR4_SMAP;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 4a7d377b3a500..d22de43925076 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1691,7 +1691,6 @@ struct kvm_memory_slot *kvm_vcpu_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn
 {
 	return __gfn_to_memslot(kvm_vcpu_memslots(vcpu), gfn);
 }
-EXPORT_SYMBOL_GPL(kvm_vcpu_gfn_to_memslot);
 
 bool kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
 {
-- 
GitLab


From 7a32d17fb73a607dcb0797cdd6edbccd76fa059a Mon Sep 17 00:00:00 2001
From: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Date: Thu, 23 Dec 2021 22:48:26 +0800
Subject: [PATCH 3468/4878] perf/x86/intel/uncore: Fix CAS_COUNT_WRITE issue
 for ICX
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 96fd2e89fba1aaada6f4b1e5d25a9d9ecbe1943d upstream.

The user recently report a perf issue in the ICX platform, when test by
perf event “uncore_imc_x/cas_count_write”,the write bandwidth is always
very small (only 0.38MB/s), it is caused by the wrong "umask" for the
"cas_count_write" event. When double-checking, find "cas_count_read"
also is wrong.

The public document for ICX uncore:

3rd Gen Intel® Xeon® Processor Scalable Family, Codename Ice Lake,Uncore
Performance Monitoring Reference Manual, Revision 1.00, May 2021

On 2.4.7, it defines Unit Masks for CAS_COUNT:
RD b00001111
WR b00110000

So corrected both "cas_count_read" and "cas_count_write" for ICX.

Old settings:
 hswep_uncore_imc_events
	INTEL_UNCORE_EVENT_DESC(cas_count_read,  "event=0x04,umask=0x03")
	INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c")

New settings:
 snr_uncore_imc_events
	INTEL_UNCORE_EVENT_DESC(cas_count_read,  "event=0x04,umask=0x0f")
	INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x30")

Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support")
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20211223144826.841267-1-zhengjun.xing@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/intel/uncore_snbep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index ba26792d96731..03c8047bebb38 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -5239,7 +5239,7 @@ static struct intel_uncore_type icx_uncore_imc = {
 	.fixed_ctr_bits	= 48,
 	.fixed_ctr	= SNR_IMC_MMIO_PMON_FIXED_CTR,
 	.fixed_ctl	= SNR_IMC_MMIO_PMON_FIXED_CTL,
-	.event_descs	= hswep_uncore_imc_events,
+	.event_descs	= snr_uncore_imc_events,
 	.perf_ctr	= SNR_IMC_MMIO_PMON_CTR0,
 	.event_ctl	= SNR_IMC_MMIO_PMON_CTL0,
 	.event_mask	= SNBEP_PMON_RAW_EVENT_MASK,
-- 
GitLab


From 6b55af102b39bf85700ae760080695487df2445a Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Thu, 6 Jan 2022 19:10:21 +0100
Subject: [PATCH 3469/4878] drm/etnaviv: relax submit size limits

commit e3d26528e083e612314d4dcd713f3d5a26143ddc upstream.

While all userspace tried to limit commandstreams to 64K in size,
a bug in the Mesa driver lead to command streams of up to 128K
being submitted. Allow those to avoid breaking existing userspace.

Fixes: 6dfa2fab8ddd ("drm/etnaviv: limit submit sizes")
Cc: stable@vger.kernel.org
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index ed2c50011d445..ddf539f26f2da 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -469,8 +469,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
-	if (args->stream_size > SZ_64K || args->nr_relocs > SZ_64K ||
-	    args->nr_bos > SZ_64K || args->nr_pmrs > 128) {
+	if (args->stream_size > SZ_128K || args->nr_relocs > SZ_128K ||
+	    args->nr_bos > SZ_128K || args->nr_pmrs > 128) {
 		DRM_ERROR("submit arguments out of size limits\n");
 		return -EINVAL;
 	}
-- 
GitLab


From e92cac1dd803aca5bc326ec22bdcd4f56855d7ce Mon Sep 17 00:00:00 2001
From: Like Xu <likexu@tencent.com>
Date: Wed, 26 Jan 2022 17:22:25 +0000
Subject: [PATCH 3470/4878] KVM: x86: Update vCPU's runtime CPUID on write to
 MSR_IA32_XSS

commit 4c282e51e4450b94680d6ca3b10f830483b1f243 upstream.

Do a runtime CPUID update for a vCPU if MSR_IA32_XSS is written, as the
size in bytes of the XSAVE area is affected by the states enabled in XSS.

Fixes: 203000993de5 ("kvm: vmx: add MSR logic for XSAVES")
Cc: stable@vger.kernel.org
Signed-off-by: Like Xu <likexu@tencent.com>
[sean: split out as a separate patch, adjust Fixes tag]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220126172226.2298529-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/x86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 271669dc8d90a..7871b8e84b368 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3171,6 +3171,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		if (data & ~supported_xss)
 			return 1;
 		vcpu->arch.ia32_xss = data;
+		kvm_update_cpuid_runtime(vcpu);
 		break;
 	case MSR_SMI_COUNT:
 		if (!msr_info->host_initiated)
-- 
GitLab


From bf0d4ae5c6c28ac37655ea33926fa3cf1498169f Mon Sep 17 00:00:00 2001
From: D Scott Phillips <scott@os.amperecomputing.com>
Date: Mon, 20 Dec 2021 15:41:14 -0800
Subject: [PATCH 3471/4878] arm64: errata: Fix exec handling in erratum 1418040
 workaround

commit 38e0257e0e6f4fef2aa2966b089b56a8b1cfb75c upstream.

The erratum 1418040 workaround enables CNTVCT_EL1 access trapping in EL0
when executing compat threads. The workaround is applied when switching
between tasks, but the need for the workaround could also change at an
exec(), when a non-compat task execs a compat binary or vice versa. Apply
the workaround in arch_setup_new_exec().

This leaves a small window of time between SET_PERSONALITY and
arch_setup_new_exec where preemption could occur and confuse the old
workaround logic that compares TIF_32BIT between prev and next. Instead, we
can just read cntkctl to make sure it's in the state that the next task
needs. I measured cntkctl read time to be about the same as a mov from a
general-purpose register on N1. Update the workaround logic to examine the
current value of cntkctl instead of the previous task's compat state.

Fixes: d49f7d7376d0 ("arm64: Move handling of erratum 1418040 into C code")
Cc: <stable@vger.kernel.org> # 5.9.x
Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211220234114.3926-1-scott@os.amperecomputing.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/process.c | 39 +++++++++++++++----------------------
 1 file changed, 16 insertions(+), 23 deletions(-)

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 4999caff32818..22275d8518eb3 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -511,34 +511,26 @@ static void entry_task_switch(struct task_struct *next)
 
 /*
  * ARM erratum 1418040 handling, affecting the 32bit view of CNTVCT.
- * Assuming the virtual counter is enabled at the beginning of times:
- *
- * - disable access when switching from a 64bit task to a 32bit task
- * - enable access when switching from a 32bit task to a 64bit task
+ * Ensure access is disabled when switching to a 32bit task, ensure
+ * access is enabled when switching to a 64bit task.
  */
-static void erratum_1418040_thread_switch(struct task_struct *prev,
-					  struct task_struct *next)
+static void erratum_1418040_thread_switch(struct task_struct *next)
 {
-	bool prev32, next32;
-	u64 val;
-
-	if (!IS_ENABLED(CONFIG_ARM64_ERRATUM_1418040))
-		return;
-
-	prev32 = is_compat_thread(task_thread_info(prev));
-	next32 = is_compat_thread(task_thread_info(next));
-
-	if (prev32 == next32 || !this_cpu_has_cap(ARM64_WORKAROUND_1418040))
+	if (!IS_ENABLED(CONFIG_ARM64_ERRATUM_1418040) ||
+	    !this_cpu_has_cap(ARM64_WORKAROUND_1418040))
 		return;
 
-	val = read_sysreg(cntkctl_el1);
-
-	if (!next32)
-		val |= ARCH_TIMER_USR_VCT_ACCESS_EN;
+	if (is_compat_thread(task_thread_info(next)))
+		sysreg_clear_set(cntkctl_el1, ARCH_TIMER_USR_VCT_ACCESS_EN, 0);
 	else
-		val &= ~ARCH_TIMER_USR_VCT_ACCESS_EN;
+		sysreg_clear_set(cntkctl_el1, 0, ARCH_TIMER_USR_VCT_ACCESS_EN);
+}
 
-	write_sysreg(val, cntkctl_el1);
+static void erratum_1418040_new_exec(void)
+{
+	preempt_disable();
+	erratum_1418040_thread_switch(current);
+	preempt_enable();
 }
 
 /*
@@ -556,7 +548,7 @@ __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev,
 	entry_task_switch(next);
 	uao_thread_switch(next);
 	ssbs_thread_switch(next);
-	erratum_1418040_thread_switch(prev, next);
+	erratum_1418040_thread_switch(next);
 
 	/*
 	 * Complete any pending TLB or cache maintenance on this CPU in case
@@ -622,6 +614,7 @@ void arch_setup_new_exec(void)
 	current->mm->context.flags = is_compat_task() ? MMCF_AARCH32 : 0;
 
 	ptrauth_thread_init_user(current);
+	erratum_1418040_new_exec();
 
 	if (task_spec_ssb_noexec(current)) {
 		arch_prctl_spec_ctrl_set(current, PR_SPEC_STORE_BYPASS,
-- 
GitLab


From 94b23988c305f46619e273823865a0e650fbebb8 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 5 Jan 2022 16:09:57 +0100
Subject: [PATCH 3472/4878] netfilter: nft_payload: do not update layer 4
 checksum when mangling fragments

commit 4e1860a3863707e8177329c006d10f9e37e097a8 upstream.

IP fragments do not come with the transport header, hence skip bogus
layer 4 checksum updates.

Fixes: 1814096980bb ("netfilter: nft_payload: layer 4 checksum adjustment for pseudoheader fields")
Reported-and-tested-by: Steffen Weinreich <steve@weinreich.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nft_payload.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
index 1ebee25de6772..6a8495bd08bb2 100644
--- a/net/netfilter/nft_payload.c
+++ b/net/netfilter/nft_payload.c
@@ -502,6 +502,9 @@ static int nft_payload_l4csum_offset(const struct nft_pktinfo *pkt,
 				     struct sk_buff *skb,
 				     unsigned int *l4csum_offset)
 {
+	if (pkt->xt.fragoff)
+		return -1;
+
 	switch (pkt->tprot) {
 	case IPPROTO_TCP:
 		*l4csum_offset = offsetof(struct tcphdr, check);
-- 
GitLab


From 4628b26df51c0f2c0d20f24a88e5df8f8cdb8f83 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Wed, 12 Jan 2022 13:42:14 -0600
Subject: [PATCH 3473/4878] serial: 8250: of: Fix mapped region size when using
 reg-offset property

commit d06b1cf28297e27127d3da54753a3a01a2fa2f28 upstream.

8250_of supports a reg-offset property which is intended to handle
cases where the device registers start at an offset inside the region
of memory allocated to the device. The Xilinx 16550 UART, for which this
support was initially added, requires this. However, the code did not
adjust the overall size of the mapped region accordingly, causing the
driver to request an area of memory past the end of the device's
allocation. For example, if the UART was allocated an address of
0xb0130000, size of 0x10000 and reg-offset of 0x1000 in the device
tree, the region of memory reserved was b0131000-b0140fff, which caused
the driver for the region starting at b0140000 to fail to probe.

Fix this by subtracting reg-offset from the mapped region size.

Fixes: b912b5e2cfb3 ([POWERPC] Xilinx: of_serial support for Xilinx uart 16550.)
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20220112194214.881844-1-robert.hancock@calian.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_of.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index 65e9045dafe6d..5595c63c46eaf 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -83,8 +83,17 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
 		port->mapsize = resource_size(&resource);
 
 		/* Check for shifted address mapping */
-		if (of_property_read_u32(np, "reg-offset", &prop) == 0)
+		if (of_property_read_u32(np, "reg-offset", &prop) == 0) {
+			if (prop >= port->mapsize) {
+				dev_warn(&ofdev->dev, "reg-offset %u exceeds region size %pa\n",
+					 prop, &port->mapsize);
+				ret = -EINVAL;
+				goto err_unprepare;
+			}
+
 			port->mapbase += prop;
+			port->mapsize -= prop;
+		}
 
 		port->iotype = UPIO_MEM;
 		if (of_property_read_u32(np, "reg-io-width", &prop) == 0) {
-- 
GitLab


From 2683b0d5d7d549db9e48319135bade8ccb1adaa1 Mon Sep 17 00:00:00 2001
From: Valentin Caron <valentin.caron@foss.st.com>
Date: Tue, 11 Jan 2022 17:44:41 +0100
Subject: [PATCH 3474/4878] serial: stm32: fix software flow control transfer

commit 037b91ec7729524107982e36ec4b40f9b174f7a2 upstream.

x_char is ignored by stm32_usart_start_tx() when xmit buffer is empty.

Fix start_tx condition to allow x_char to be sent.

Fixes: 48a6092fb41f ("serial: stm32-usart: Add STM32 USART Driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Link: https://lore.kernel.org/r/20220111164441.6178-3-valentin.caron@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/stm32-usart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 844059861f9e1..0eadf0547175c 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -574,7 +574,7 @@ static void stm32_usart_start_tx(struct uart_port *port)
 	struct serial_rs485 *rs485conf = &port->rs485;
 	struct circ_buf *xmit = &port->state->xmit;
 
-	if (uart_circ_empty(xmit))
+	if (uart_circ_empty(xmit) && !port->x_char)
 		return;
 
 	if (rs485conf->flags & SER_RS485_ENABLED) {
-- 
GitLab


From 7079283d32a2c9637f352a299323e21af53fd080 Mon Sep 17 00:00:00 2001
From: "daniel.starke@siemens.com" <daniel.starke@siemens.com>
Date: Thu, 20 Jan 2022 02:18:57 -0800
Subject: [PATCH 3475/4878] tty: n_gsm: fix SW flow control encoding/handling

commit 8838b2af23caf1ff0610caef2795d6668a013b2d upstream.

n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010.
See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516
The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to
the newer 27.010 here. Chapter 5.2.7.3 states that DC1 (XON) and DC3 (XOFF)
are the control characters defined in ISO/IEC 646. These shall be quoted if
seen in the data stream to avoid interpretation as flow control characters.

ISO/IEC 646 refers to the set of ISO standards described as the ISO
7-bit coded character set for information interchange. Its final version
is also known as ITU T.50.
See https://www.itu.int/rec/T-REC-T.50-199209-I/en

To abide the standard it is needed to quote DC1 and DC3 correctly if these
are seen as data bytes and not as control characters. The current
implementation already tries to enforce this but fails to catch all
defined cases. 3GPP 27.010 chapter 5.2.7.3 clearly states that the most
significant bit shall be ignored for DC1 and DC3 handling. The current
implementation handles only the case with the most significant bit set 0.
Cases in which DC1 and DC3 have the most significant bit set 1 are left
unhandled.

This patch fixes this by masking the data bytes with ISO_IEC_646_MASK (only
the 7 least significant bits set 1) before comparing them with XON
(a.k.a. DC1) and XOFF (a.k.a. DC3) when testing which byte values need
quotation via byte stuffing.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220120101857.2509-1-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index d76880ae68c83..b8f8621537720 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -317,6 +317,7 @@ static struct tty_driver *gsm_tty_driver;
 #define GSM1_ESCAPE_BITS	0x20
 #define XON			0x11
 #define XOFF			0x13
+#define ISO_IEC_646_MASK	0x7F
 
 static const struct tty_port_operations gsm_port_ops;
 
@@ -526,7 +527,8 @@ static int gsm_stuff_frame(const u8 *input, u8 *output, int len)
 	int olen = 0;
 	while (len--) {
 		if (*input == GSM1_SOF || *input == GSM1_ESCAPE
-		    || *input == XON || *input == XOFF) {
+		    || (*input & ISO_IEC_646_MASK) == XON
+		    || (*input & ISO_IEC_646_MASK) == XOFF) {
 			*output++ = GSM1_ESCAPE;
 			*output++ = *input++ ^ GSM1_ESCAPE_BITS;
 			olen++;
-- 
GitLab


From e0fcae7bd72b55c73d484a64cdf24a53f91fc86a Mon Sep 17 00:00:00 2001
From: Cameron Williams <cang1@live.co.uk>
Date: Mon, 24 Jan 2022 09:42:23 +0000
Subject: [PATCH 3476/4878] tty: Add support for Brainboxes UC cards.

commit 152d1afa834c84530828ee031cf07a00e0fc0b8c upstream.

This commit adds support for the some of the Brainboxes PCI range of
cards, including the UC-101, UC-235/246, UC-257, UC-268, UC-275/279,
UC-302, UC-310, UC-313, UC-320/324, UC-346, UC-357, UC-368
and UC-420/431.

Signed-off-by: Cameron Williams <cang1@live.co.uk>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/AM5PR0202MB2564688493F7DD9B9C610827C45E9@AM5PR0202MB2564.eurprd02.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 100 ++++++++++++++++++++++++++++-
 1 file changed, 98 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 019328d644d8b..3a985e953b8e9 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -5171,8 +5171,30 @@ static const struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS400,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,    /* 135a.0dc0 */
 		pbn_b2_4_115200 },
+	/* Brainboxes Devices */
 	/*
-	 * BrainBoxes UC-260
+	* Brainboxes UC-101
+	*/
+	{       PCI_VENDOR_ID_INTASHIELD, 0x0BA1,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	/*
+	 * Brainboxes UC-235/246
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0AA1,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_1_115200 },
+	/*
+	 * Brainboxes UC-257
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0861,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	/*
+	 * Brainboxes UC-260/271/701/756
 	 */
 	{	PCI_VENDOR_ID_INTASHIELD, 0x0D21,
 		PCI_ANY_ID, PCI_ANY_ID,
@@ -5180,7 +5202,81 @@ static const struct pci_device_id serial_pci_tbl[] = {
 		pbn_b2_4_115200 },
 	{	PCI_VENDOR_ID_INTASHIELD, 0x0E34,
 		PCI_ANY_ID, PCI_ANY_ID,
-		 PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
+		PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
+		pbn_b2_4_115200 },
+	/*
+	 * Brainboxes UC-268
+	 */
+	{       PCI_VENDOR_ID_INTASHIELD, 0x0841,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_4_115200 },
+	/*
+	 * Brainboxes UC-275/279
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0881,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_8_115200 },
+	/*
+	 * Brainboxes UC-302
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x08E1,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	/*
+	 * Brainboxes UC-310
+	 */
+	{       PCI_VENDOR_ID_INTASHIELD, 0x08C1,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	/*
+	 * Brainboxes UC-313
+	 */
+	{       PCI_VENDOR_ID_INTASHIELD, 0x08A3,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	/*
+	 * Brainboxes UC-320/324
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0A61,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_1_115200 },
+	/*
+	 * Brainboxes UC-346
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0B02,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_4_115200 },
+	/*
+	 * Brainboxes UC-357
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0A81,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0A83,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_2_115200 },
+	/*
+	 * Brainboxes UC-368
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, 0x0C41,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b2_4_115200 },
+	/*
+	 * Brainboxes UC-420/431
+	 */
+	{       PCI_VENDOR_ID_INTASHIELD, 0x0921,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
 		pbn_b2_4_115200 },
 	/*
 	 * Perle PCI-RAS cards
-- 
GitLab


From 38d1bf67a3102dcc4e20cf2c5e257fe5281d0cdf Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Mon, 24 Jan 2022 15:14:40 -0500
Subject: [PATCH 3477/4878] usb-storage: Add unusual-devs entry for VL817
 USB-SATA bridge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 5b67b315037250a61861119683e7fcb509deea25 upstream.

Two people have reported (and mentioned numerous other reports on the
web) that VIA's VL817 USB-SATA bridge does not work with the uas
driver.  Typical log messages are:

[ 3606.232149] sd 14:0:0:0: [sdg] tag#2 uas_zap_pending 0 uas-tag 1 inflight: CMD
[ 3606.232154] sd 14:0:0:0: [sdg] tag#2 CDB: Write(16) 8a 00 00 00 00 00 18 0c c9 80 00 00 00 80 00 00
[ 3606.306257] usb 4-4.4: reset SuperSpeed Plus Gen 2x1 USB device number 11 using xhci_hcd
[ 3606.328584] scsi host14: uas_eh_device_reset_handler success

Surprisingly, the devices do seem to work okay for some other people.
The cause of the differing behaviors is not known.

In the hope of getting the devices to work for the most users, even at
the possible cost of degraded performance for some, this patch adds an
unusual_devs entry for the VL817 to block it from binding to the uas
driver by default.  Users will be able to override this entry by means
of a module parameter, if they want.

CC: <stable@vger.kernel.org>
Reported-by: DocMAX <mail@vacharakis.de>
Reported-and-tested-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/Ye8IsK2sjlEv1rqU@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/storage/unusual_devs.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 29191d33c0e3e..1a05e3dcfec8a 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2301,6 +2301,16 @@ UNUSUAL_DEV(  0x2027, 0xa001, 0x0000, 0x9999,
 		USB_SC_DEVICE, USB_PR_DEVICE, usb_stor_euscsi_init,
 		US_FL_SCM_MULT_TARG ),
 
+/*
+ * Reported by DocMAX <mail@vacharakis.de>
+ * and Thomas Weißschuh <linux@weissschuh.net>
+ */
+UNUSUAL_DEV( 0x2109, 0x0715, 0x9999, 0x9999,
+		"VIA Labs, Inc.",
+		"VL817 SATA Bridge",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_IGNORE_UAS),
+
 UNUSUAL_DEV( 0x2116, 0x0320, 0x0001, 0x0001,
 		"ST",
 		"2A",
-- 
GitLab


From 20c51a4c52208f98e27308c456a1951778f41fa5 Mon Sep 17 00:00:00 2001
From: Frank Li <Frank.Li@nxp.com>
Date: Mon, 10 Jan 2022 11:27:38 -0600
Subject: [PATCH 3478/4878] usb: xhci-plat: fix crash when suspend if remote
 wake enable

commit 9df478463d9feb90dae24f183383961cf123a0ec upstream.

Crashed at i.mx8qm platform when suspend if enable remote wakeup

Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 244 Comm: kworker/u12:6 Not tainted 5.15.5-dirty #12
Hardware name: Freescale i.MX8QM MEK (DT)
Workqueue: events_unbound async_run_entry_fn
pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : xhci_disable_hub_port_wake.isra.62+0x60/0xf8
lr : xhci_disable_hub_port_wake.isra.62+0x34/0xf8
sp : ffff80001394bbf0
x29: ffff80001394bbf0 x28: 0000000000000000 x27: ffff00081193b578
x26: ffff00081193b570 x25: 0000000000000000 x24: 0000000000000000
x23: ffff00081193a29c x22: 0000000000020001 x21: 0000000000000001
x20: 0000000000000000 x19: ffff800014e90490 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000002 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000960 x9 : ffff80001394baa0
x8 : ffff0008145d1780 x7 : ffff0008f95b8e80 x6 : 000000001853b453
x5 : 0000000000000496 x4 : 0000000000000000 x3 : ffff00081193a29c
x2 : 0000000000000001 x1 : 0000000000000000 x0 : ffff000814591620
Call trace:
 xhci_disable_hub_port_wake.isra.62+0x60/0xf8
 xhci_suspend+0x58/0x510
 xhci_plat_suspend+0x50/0x78
 platform_pm_suspend+0x2c/0x78
 dpm_run_callback.isra.25+0x50/0xe8
 __device_suspend+0x108/0x3c0

The basic flow:
	1. run time suspend call xhci_suspend, xhci parent devices gate the clock.
        2. echo mem >/sys/power/state, system _device_suspend call xhci_suspend
        3. xhci_suspend call xhci_disable_hub_port_wake, which access register,
	   but clock already gated by run time suspend.

This problem was hidden by power domain driver, which call run time resume before it.

But the below commit remove it and make this issue happen.
	commit c1df456d0f06e ("PM: domains: Don't runtime resume devices at genpd_prepare()")

This patch call run time resume before suspend to make sure clock is on
before access register.

Reviewed-by: Peter Chen <peter.chen@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Testeb-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20220110172738.31686-1-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-plat.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index c1edcc9b13cec..dc570ce4e8319 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -437,6 +437,9 @@ static int __maybe_unused xhci_plat_suspend(struct device *dev)
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
 	int ret;
 
+	if (pm_runtime_suspended(dev))
+		pm_runtime_resume(dev);
+
 	ret = xhci_priv_suspend_quirk(hcd);
 	if (ret)
 		return ret;
-- 
GitLab


From 053274bc6baa5f2612674b62bc6f6657c10adc17 Mon Sep 17 00:00:00 2001
From: Jon Hunter <jonathanh@nvidia.com>
Date: Mon, 17 Jan 2022 15:00:39 +0000
Subject: [PATCH 3479/4878] usb: common: ulpi: Fix crash in ulpi_match()

commit 2e3dd4a6246945bf84ea6f478365d116e661554c upstream.

Commit 7495af930835 ("ARM: multi_v7_defconfig: Enable drivers for
DragonBoard 410c") enables the CONFIG_PHY_QCOM_USB_HS for the ARM
multi_v7_defconfig. Enabling this Kconfig is causing the kernel to crash
on the Tegra20 Ventana platform in the ulpi_match() function.

The Qualcomm USB HS PHY driver that is enabled by CONFIG_PHY_QCOM_USB_HS,
registers a ulpi_driver but this driver does not provide an 'id_table',
so when ulpi_match() is called on the Tegra20 Ventana platform, it
crashes when attempting to deference the id_table pointer which is not
valid. The Qualcomm USB HS PHY driver uses device-tree for matching the
ULPI driver with the device and so fix this crash by using device-tree
for matching if the id_table is not valid.

Fixes: ef6a7bcfb01c ("usb: ulpi: Support device discovery via DT")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20220117150039.44058-1-jonathanh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/common/ulpi.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index a18d7c4222ddf..82fe8e00a96a3 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -39,8 +39,11 @@ static int ulpi_match(struct device *dev, struct device_driver *driver)
 	struct ulpi *ulpi = to_ulpi_dev(dev);
 	const struct ulpi_device_id *id;
 
-	/* Some ULPI devices don't have a vendor id so rely on OF match */
-	if (ulpi->id.vendor == 0)
+	/*
+	 * Some ULPI devices don't have a vendor id
+	 * or provide an id_table so rely on OF match.
+	 */
+	if (ulpi->id.vendor == 0 || !drv->id_table)
 		return of_driver_match_device(dev, driver);
 
 	for (id = drv->id_table; id->vendor; id++)
-- 
GitLab


From 3ca928c8242798c4d00cb3a30c20fa4a127ee6c7 Mon Sep 17 00:00:00 2001
From: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Date: Sat, 22 Jan 2022 08:33:22 +0530
Subject: [PATCH 3480/4878] usb: gadget: f_sourcesink: Fix isoc transfer for
 USB_SPEED_SUPER_PLUS

commit 904edf8aeb459697129be5fde847e2a502f41fd9 upstream.

Currently when gadget enumerates in super speed plus, the isoc
endpoint request buffer size is not calculated correctly. Fix
this by checking the gadget speed against USB_SPEED_SUPER_PLUS
and update the request buffer size.

Fixes: 90c4d05780d4 ("usb: fix various gadgets null ptr deref on 10gbps cabling.")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Link: https://lore.kernel.org/r/1642820602-20619-1-git-send-email-quic_pkondeti@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/f_sourcesink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 282737e4609ce..2c65a9bb3c81b 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -583,6 +583,7 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 
 	if (is_iso) {
 		switch (speed) {
+		case USB_SPEED_SUPER_PLUS:
 		case USB_SPEED_SUPER:
 			size = ss->isoc_maxpacket *
 					(ss->isoc_mult + 1) *
-- 
GitLab


From e3b131e30e612ff0e32de6c1cb4f69f89db29193 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Mon, 24 Jan 2022 15:23:45 -0500
Subject: [PATCH 3481/4878] USB: core: Fix hang in usb_kill_urb by adding
 memory barriers

commit 26fbe9772b8c459687930511444ce443011f86bf upstream.

The syzbot fuzzer has identified a bug in which processes hang waiting
for usb_kill_urb() to return.  It turns out the issue is not unlinking
the URB; that works just fine.  Rather, the problem arises when the
wakeup notification that the URB has completed is not received.

The reason is memory-access ordering on SMP systems.  In outline form,
usb_kill_urb() and __usb_hcd_giveback_urb() operating concurrently on
different CPUs perform the following actions:

CPU 0					CPU 1
----------------------------		---------------------------------
usb_kill_urb():				__usb_hcd_giveback_urb():
  ...					  ...
  atomic_inc(&urb->reject);		  atomic_dec(&urb->use_count);
  ...					  ...
  wait_event(usb_kill_urb_queue,
	atomic_read(&urb->use_count) == 0);
					  if (atomic_read(&urb->reject))
						wake_up(&usb_kill_urb_queue);

Confining your attention to urb->reject and urb->use_count, you can
see that the overall pattern of accesses on CPU 0 is:

	write urb->reject, then read urb->use_count;

whereas the overall pattern of accesses on CPU 1 is:

	write urb->use_count, then read urb->reject.

This pattern is referred to in memory-model circles as SB (for "Store
Buffering"), and it is well known that without suitable enforcement of
the desired order of accesses -- in the form of memory barriers -- it
is entirely possible for one or both CPUs to execute their reads ahead
of their writes.  The end result will be that sometimes CPU 0 sees the
old un-decremented value of urb->use_count while CPU 1 sees the old
un-incremented value of urb->reject.  Consequently CPU 0 ends up on
the wait queue and never gets woken up, leading to the observed hang
in usb_kill_urb().

The same pattern of accesses occurs in usb_poison_urb() and the
failure pathway of usb_hcd_submit_urb().

The problem is fixed by adding suitable memory barriers.  To provide
proper memory-access ordering in the SB pattern, a full barrier is
required on both CPUs.  The atomic_inc() and atomic_dec() accesses
themselves don't provide any memory ordering, but since they are
present, we can use the optimized smp_mb__after_atomic() memory
barrier in the various routines to obtain the desired effect.

This patch adds the necessary memory barriers.

CC: <stable@vger.kernel.org>
Reported-and-tested-by: syzbot+76629376e06e2c2ad626@syzkaller.appspotmail.com
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/Ye8K0QYee0Q0Nna2@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 14 ++++++++++++++
 drivers/usb/core/urb.c | 12 ++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index b2710015493a5..ddd1d3eef912b 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1562,6 +1562,13 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags)
 		urb->hcpriv = NULL;
 		INIT_LIST_HEAD(&urb->urb_list);
 		atomic_dec(&urb->use_count);
+		/*
+		 * Order the write of urb->use_count above before the read
+		 * of urb->reject below.  Pairs with the memory barriers in
+		 * usb_kill_urb() and usb_poison_urb().
+		 */
+		smp_mb__after_atomic();
+
 		atomic_dec(&urb->dev->urbnum);
 		if (atomic_read(&urb->reject))
 			wake_up(&usb_kill_urb_queue);
@@ -1666,6 +1673,13 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
 
 	usb_anchor_resume_wakeups(anchor);
 	atomic_dec(&urb->use_count);
+	/*
+	 * Order the write of urb->use_count above before the read
+	 * of urb->reject below.  Pairs with the memory barriers in
+	 * usb_kill_urb() and usb_poison_urb().
+	 */
+	smp_mb__after_atomic();
+
 	if (unlikely(atomic_read(&urb->reject)))
 		wake_up(&usb_kill_urb_queue);
 	usb_put_urb(urb);
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 357b149b20d3a..9c285026f8276 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -706,6 +706,12 @@ void usb_kill_urb(struct urb *urb)
 	if (!(urb && urb->dev && urb->ep))
 		return;
 	atomic_inc(&urb->reject);
+	/*
+	 * Order the write of urb->reject above before the read
+	 * of urb->use_count below.  Pairs with the barriers in
+	 * __usb_hcd_giveback_urb() and usb_hcd_submit_urb().
+	 */
+	smp_mb__after_atomic();
 
 	usb_hcd_unlink_urb(urb, -ENOENT);
 	wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0);
@@ -747,6 +753,12 @@ void usb_poison_urb(struct urb *urb)
 	if (!urb)
 		return;
 	atomic_inc(&urb->reject);
+	/*
+	 * Order the write of urb->reject above before the read
+	 * of urb->use_count below.  Pairs with the barriers in
+	 * __usb_hcd_giveback_urb() and usb_hcd_submit_urb().
+	 */
+	smp_mb__after_atomic();
 
 	if (!urb->dev || !urb->ep)
 		return;
-- 
GitLab


From 598a884c772c9a34b486d2f16e36dc98e2112727 Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@google.com>
Date: Fri, 21 Jan 2022 17:55:19 -0800
Subject: [PATCH 3482/4878] usb: typec: tcpm: Do not disconnect while receiving
 VBUS off

commit 90b8aa9f5b09edae6928c0561f933fec9f7a9987 upstream.

With some chargers, vbus might momentarily raise above VSAFE5V and fall
back to 0V before tcpm gets to read port->tcpc->get_vbus. This will
will report a VBUS off event causing TCPM to transition to
SNK_UNATTACHED where it should be waiting in either SNK_ATTACH_WAIT
or SNK_DEBOUNCED state. This patch makes TCPM avoid vbus off events
while in SNK_ATTACH_WAIT or SNK_DEBOUNCED state.

Stub from the spec:
    "4.5.2.2.4.2 Exiting from AttachWait.SNK State
    A Sink shall transition to Unattached.SNK when the state of both
    the CC1 and CC2 pins is SNK.Open for at least tPDDebounce.
    A DRP shall transition to Unattached.SRC when the state of both
    the CC1 and CC2 pins is SNK.Open for at least tPDDebounce."

[23.194131] CC1: 0 -> 0, CC2: 0 -> 5 [state SNK_UNATTACHED, polarity 0, connected]
[23.201777] state change SNK_UNATTACHED -> SNK_ATTACH_WAIT [rev3 NONE_AMS]
[23.209949] pending state change SNK_ATTACH_WAIT -> SNK_DEBOUNCED @ 170 ms [rev3 NONE_AMS]
[23.300579] VBUS off
[23.300668] state change SNK_ATTACH_WAIT -> SNK_UNATTACHED [rev3 NONE_AMS]
[23.301014] VBUS VSAFE0V
[23.301111] Start toggling

Fixes: f0690a25a140b8 ("staging: typec: USB Type-C Port Manager (tcpm)")
Cc: stable@vger.kernel.org
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Link: https://lore.kernel.org/r/20220122015520.332507-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/typec/tcpm/tcpm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 721d9c4ddc81f..8333c80b5f7c1 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -4164,7 +4164,8 @@ static void _tcpm_pd_vbus_off(struct tcpm_port *port)
 	case SNK_TRYWAIT_DEBOUNCE:
 		break;
 	case SNK_ATTACH_WAIT:
-		tcpm_set_state(port, SNK_UNATTACHED, 0);
+	case SNK_DEBOUNCED:
+		/* Do nothing, as TCPM is still waiting for vbus to reaach VSAFE5V to connect */
 		break;
 
 	case SNK_NEGOTIATE_CAPABILITIES:
-- 
GitLab


From 3921d081c9c395e7ce63d0081276070c2e6bf64c Mon Sep 17 00:00:00 2001
From: Sing-Han Chen <singhanc@nvidia.com>
Date: Wed, 12 Jan 2022 17:41:43 +0800
Subject: [PATCH 3483/4878] ucsi_ccg: Check DEV_INT bit only when starting CCG4

commit 825911492eb15bf8bb7fb94bc0c0421fe7a6327d upstream.

CCGx clears Bit 0:Device Interrupt in the INTR_REG
if CCGx is reset successfully. However, there might
be a chance that other bits in INTR_REG are not
cleared due to internal data queued in PPM. This case
misleads the driver that CCGx reset failed.

The commit checks bit 0 in INTR_REG and ignores other
bits. The ucsi driver would reset PPM later.

Fixes: 247c554a14aa ("usb: typec: ucsi: add support for Cypress CCGx")
Cc: stable@vger.kernel.org
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sing-Han Chen <singhanc@nvidia.com>
Signed-off-by: Wayne Chang <waynec@nvidia.com>
Link: https://lore.kernel.org/r/20220112094143.628610-1-waynec@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/typec/ucsi/ucsi_ccg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_ccg.c b/drivers/usb/typec/ucsi/ucsi_ccg.c
index bff96d64dddff..6db7c8ddd51cd 100644
--- a/drivers/usb/typec/ucsi/ucsi_ccg.c
+++ b/drivers/usb/typec/ucsi/ucsi_ccg.c
@@ -325,7 +325,7 @@ static int ucsi_ccg_init(struct ucsi_ccg *uc)
 		if (status < 0)
 			return status;
 
-		if (!data)
+		if (!(data & DEV_INT))
 			return 0;
 
 		status = ccg_write(uc, CCGX_RAB_INTR_REG, &data, sizeof(data));
-- 
GitLab


From 97f75e7d4c3039e4bc304bf543385247c00881ce Mon Sep 17 00:00:00 2001
From: Joseph Qi <joseph.qi@linux.alibaba.com>
Date: Sat, 29 Jan 2022 13:41:23 -0800
Subject: [PATCH 3484/4878] jbd2: export jbd2_journal_[grab|put]_journal_head

commit 4cd1103d8c66b2cdb7e64385c274edb0ac5e8887 upstream.

Patch series "ocfs2: fix a deadlock case".

This fixes a deadlock case in ocfs2.  We firstly export jbd2 symbols
jbd2_journal_[grab|put]_journal_head as preparation and later use them
in ocfs2 insread of jbd_[lock|unlock]_bh_journal_head to fix the
deadlock.

This patch (of 2):

This exports symbols jbd2_journal_[grab|put]_journal_head, which will be
used outside modules, e.g.  ocfs2.

Link: https://lkml.kernel.org/r/20220121071205.100648-2-joseph.qi@linux.alibaba.com
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com>
Cc: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/jbd2/journal.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 188f79d769881..b748329bb0bab 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2795,6 +2795,7 @@ struct journal_head *jbd2_journal_grab_journal_head(struct buffer_head *bh)
 	jbd_unlock_bh_journal_head(bh);
 	return jh;
 }
+EXPORT_SYMBOL(jbd2_journal_grab_journal_head);
 
 static void __journal_remove_journal_head(struct buffer_head *bh)
 {
@@ -2847,6 +2848,7 @@ void jbd2_journal_put_journal_head(struct journal_head *jh)
 		jbd_unlock_bh_journal_head(bh);
 	}
 }
+EXPORT_SYMBOL(jbd2_journal_put_journal_head);
 
 /*
  * Initialize jbd inode head
-- 
GitLab


From afbde455ebf4791773e8ba44940bec30b765bd82 Mon Sep 17 00:00:00 2001
From: Joseph Qi <joseph.qi@linux.alibaba.com>
Date: Sat, 29 Jan 2022 13:41:27 -0800
Subject: [PATCH 3485/4878] ocfs2: fix a deadlock when commit trans

commit ddf4b773aa40790dfa936bd845c18e735a49c61c upstream.

commit 6f1b228529ae introduces a regression which can deadlock as
follows:

  Task1:                              Task2:
  jbd2_journal_commit_transaction     ocfs2_test_bg_bit_allocatable
  spin_lock(&jh->b_state_lock)        jbd_lock_bh_journal_head
  __jbd2_journal_remove_checkpoint    spin_lock(&jh->b_state_lock)
  jbd2_journal_put_journal_head
  jbd_lock_bh_journal_head

Task1 and Task2 lock bh->b_state and jh->b_state_lock in different
order, which finally result in a deadlock.

So use jbd2_journal_[grab|put]_journal_head instead in
ocfs2_test_bg_bit_allocatable() to fix it.

Link: https://lkml.kernel.org/r/20220121071205.100648-3-joseph.qi@linux.alibaba.com
Fixes: 6f1b228529ae ("ocfs2: fix race between searching chunks and release journal_head from buffer_head")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com>
Tested-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com>
Reported-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ocfs2/suballoc.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index e7d04adb6cb87..4f48003e43271 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -1253,26 +1253,23 @@ static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh,
 {
 	struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
 	struct journal_head *jh;
-	int ret = 1;
+	int ret;
 
 	if (ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap))
 		return 0;
 
-	if (!buffer_jbd(bg_bh))
+	jh = jbd2_journal_grab_journal_head(bg_bh);
+	if (!jh)
 		return 1;
 
-	jbd_lock_bh_journal_head(bg_bh);
-	if (buffer_jbd(bg_bh)) {
-		jh = bh2jh(bg_bh);
-		spin_lock(&jh->b_state_lock);
-		bg = (struct ocfs2_group_desc *) jh->b_committed_data;
-		if (bg)
-			ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap);
-		else
-			ret = 1;
-		spin_unlock(&jh->b_state_lock);
-	}
-	jbd_unlock_bh_journal_head(bg_bh);
+	spin_lock(&jh->b_state_lock);
+	bg = (struct ocfs2_group_desc *) jh->b_committed_data;
+	if (bg)
+		ret = !ocfs2_test_bit(nr, (unsigned long *)bg->bg_bitmap);
+	else
+		ret = 1;
+	spin_unlock(&jh->b_state_lock);
+	jbd2_journal_put_journal_head(jh);
 
 	return ret;
 }
-- 
GitLab


From 791e5d5daa2c8d66d1c5ad9cacdf554a92c65cbc Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 17 Jan 2022 15:30:10 -0500
Subject: [PATCH 3486/4878] sched/membarrier: Fix membarrier-rseq fence command
 missing from query bitmask

commit 809232619f5b15e31fb3563985e705454f32621f upstream.

The membarrier command MEMBARRIER_CMD_QUERY allows querying the
available membarrier commands. When the membarrier-rseq fence commands
were added, a new MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ_BITMASK was
introduced with the intent to expose them with the MEMBARRIER_CMD_QUERY
command, the but it was never added to MEMBARRIER_CMD_BITMASK.

The membarrier-rseq fence commands are therefore not wired up with the
query command.

Rename MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ_BITMASK to
MEMBARRIER_PRIVATE_EXPEDITED_RSEQ_BITMASK (the bitmask is not a command
per-se), and change the erroneous
MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ_BITMASK (which does not
actually exist) to MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ.

Wire up MEMBARRIER_PRIVATE_EXPEDITED_RSEQ_BITMASK in
MEMBARRIER_CMD_BITMASK. Fixing this allows discovering availability of
the membarrier-rseq fence feature.

Fixes: 2a36ab717e8f ("rseq/membarrier: Add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@vger.kernel.org> # 5.10+
Link: https://lkml.kernel.org/r/20220117203010.30129-1-mathieu.desnoyers@efficios.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/sched/membarrier.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/membarrier.c b/kernel/sched/membarrier.c
index 16f57e71f9c44..4d4dd349c05be 100644
--- a/kernel/sched/membarrier.c
+++ b/kernel/sched/membarrier.c
@@ -19,11 +19,11 @@
 #endif
 
 #ifdef CONFIG_RSEQ
-#define MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ_BITMASK		\
+#define MEMBARRIER_PRIVATE_EXPEDITED_RSEQ_BITMASK		\
 	(MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ			\
-	| MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ_BITMASK)
+	| MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ)
 #else
-#define MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ_BITMASK	0
+#define MEMBARRIER_PRIVATE_EXPEDITED_RSEQ_BITMASK	0
 #endif
 
 #define MEMBARRIER_CMD_BITMASK						\
@@ -31,7 +31,8 @@
 	| MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED			\
 	| MEMBARRIER_CMD_PRIVATE_EXPEDITED				\
 	| MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED			\
-	| MEMBARRIER_PRIVATE_EXPEDITED_SYNC_CORE_BITMASK)
+	| MEMBARRIER_PRIVATE_EXPEDITED_SYNC_CORE_BITMASK		\
+	| MEMBARRIER_PRIVATE_EXPEDITED_RSEQ_BITMASK)
 
 static void ipi_mb(void *info)
 {
-- 
GitLab


From 08f090bb9b6951a510437ef26ad78ffb3ee17142 Mon Sep 17 00:00:00 2001
From: Yazen Ghannam <yazen.ghannam@amd.com>
Date: Mon, 17 Jan 2022 16:13:28 +0000
Subject: [PATCH 3487/4878] x86/MCE/AMD: Allow thresholding interface updates
 after init

commit 1f52b0aba6fd37653416375cb8a1ca673acf8d5f upstream.

Changes to the AMD Thresholding sysfs code prevents sysfs writes from
updating the underlying registers once CPU init is completed, i.e.
"threshold_banks" is set.

Allow the registers to be updated if the thresholding interface is
already initialized or if in the init path. Use the "set_lvt_off" value
to indicate if running in the init path, since this value is only set
during init.

Fixes: a037f3ca0ea0 ("x86/mce/amd: Make threshold bank setting hotplug robust")
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220117161328.19148-1-yazen.ghannam@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/mce/amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c
index 0c6b02dd744c1..f73f1184b1c13 100644
--- a/arch/x86/kernel/cpu/mce/amd.c
+++ b/arch/x86/kernel/cpu/mce/amd.c
@@ -387,7 +387,7 @@ static void threshold_restart_bank(void *_tr)
 	u32 hi, lo;
 
 	/* sysfs write might race against an offline operation */
-	if (this_cpu_read(threshold_banks))
+	if (!this_cpu_read(threshold_banks) && !tr->set_lvt_off)
 		return;
 
 	rdmsr(tr->b->address, lo, hi);
-- 
GitLab


From 5d3af1dfdf0feb9bdcdebabf858842be808dd73f Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Fri, 26 Nov 2021 13:40:35 +0100
Subject: [PATCH 3488/4878] powerpc/32s: Allocate one 256k IBAT instead of two
 consecutives 128k IBATs

commit 37eb7ca91b692e8e49e7dd50158349a6c8fb5b09 upstream.

Today we have the following IBATs allocated:

	---[ Instruction Block Address Translation ]---
	0: 0xc0000000-0xc03fffff 0x00000000         4M Kernel   x     m
	1: 0xc0400000-0xc05fffff 0x00400000         2M Kernel   x     m
	2: 0xc0600000-0xc06fffff 0x00600000         1M Kernel   x     m
	3: 0xc0700000-0xc077ffff 0x00700000       512K Kernel   x     m
	4: 0xc0780000-0xc079ffff 0x00780000       128K Kernel   x     m
	5: 0xc07a0000-0xc07bffff 0x007a0000       128K Kernel   x     m
	6:         -
	7:         -

The two 128K should be a single 256K instead.

When _etext is not aligned to 128Kbytes, the system will allocate
all necessary BATs to the lower 128Kbytes boundary, then allocate
an additional 128Kbytes BAT for the remaining block.

Instead, align the top to 128Kbytes so that the function directly
allocates a 256Kbytes last block:

	---[ Instruction Block Address Translation ]---
	0: 0xc0000000-0xc03fffff 0x00000000         4M Kernel   x     m
	1: 0xc0400000-0xc05fffff 0x00400000         2M Kernel   x     m
	2: 0xc0600000-0xc06fffff 0x00600000         1M Kernel   x     m
	3: 0xc0700000-0xc077ffff 0x00700000       512K Kernel   x     m
	4: 0xc0780000-0xc07bffff 0x00780000       256K Kernel   x     m
	5:         -
	6:         -
	7:         -

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ab58b296832b0ec650e2203200e060adbcb2677d.1637930421.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/mm/book3s32/mmu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index a59e7ec981803..addecf77dae31 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -201,18 +201,17 @@ void mmu_mark_initmem_nx(void)
 	int nb = mmu_has_feature(MMU_FTR_USE_HIGH_BATS) ? 8 : 4;
 	int i;
 	unsigned long base = (unsigned long)_stext - PAGE_OFFSET;
-	unsigned long top = (unsigned long)_etext - PAGE_OFFSET;
+	unsigned long top = ALIGN((unsigned long)_etext - PAGE_OFFSET, SZ_128K);
 	unsigned long border = (unsigned long)__init_begin - PAGE_OFFSET;
 	unsigned long size;
 
-	for (i = 0; i < nb - 1 && base < top && top - base > (128 << 10);) {
+	for (i = 0; i < nb - 1 && base < top;) {
 		size = block_size(base, top);
 		setibat(i++, PAGE_OFFSET + base, base, size, PAGE_KERNEL_TEXT);
 		base += size;
 	}
 	if (base < top) {
 		size = block_size(base, top);
-		size = max(size, 128UL << 10);
 		if ((top - base) > size) {
 			size <<= 1;
 			if (strict_kernel_rwx_enabled() && base + size > border)
-- 
GitLab


From 50f5d0a8bd0ed41ac9477cfbcebe8d15e9efd35c Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Mon, 10 Jan 2022 15:29:25 +0000
Subject: [PATCH 3489/4878] powerpc/32s: Fix kasan_init_region() for KASAN

commit d37823c3528e5e0705fc7746bcbc2afffb619259 upstream.

It has been reported some configuration where the kernel doesn't
boot with KASAN enabled.

This is due to wrong BAT allocation for the KASAN area:

	---[ Data Block Address Translation ]---
	0: 0xc0000000-0xcfffffff 0x00000000       256M Kernel rw      m
	1: 0xd0000000-0xdfffffff 0x10000000       256M Kernel rw      m
	2: 0xe0000000-0xefffffff 0x20000000       256M Kernel rw      m
	3: 0xf8000000-0xf9ffffff 0x2a000000        32M Kernel rw      m
	4: 0xfa000000-0xfdffffff 0x2c000000        64M Kernel rw      m

A BAT must have both virtual and physical addresses alignment matching
the size of the BAT. This is not the case for BAT 4 above.

Fix kasan_init_region() by using block_size() function that is in
book3s32/mmu.c. To be able to reuse it here, make it non static and
change its name to bat_block_size() in order to avoid name conflict
with block_size() defined in <linux/blkdev.h>

Also reuse find_free_bat() to avoid an error message from setbat()
when no BAT is available.

And allocate memory outside of linear memory mapping to avoid
wasting that precious space.

With this change we get correct alignment for BATs and KASAN shadow
memory is allocated outside the linear memory space.

	---[ Data Block Address Translation ]---
	0: 0xc0000000-0xcfffffff 0x00000000       256M Kernel rw
	1: 0xd0000000-0xdfffffff 0x10000000       256M Kernel rw
	2: 0xe0000000-0xefffffff 0x20000000       256M Kernel rw
	3: 0xf8000000-0xfbffffff 0x7c000000        64M Kernel rw
	4: 0xfc000000-0xfdffffff 0x7a000000        32M Kernel rw

Fixes: 7974c4732642 ("powerpc/32s: Implement dedicated kasan_init_region()")
Cc: stable@vger.kernel.org
Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7a50ef902494d1325227d47d33dada01e52e5518.1641818726.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/include/asm/book3s/32/mmu-hash.h |  2 +
 arch/powerpc/mm/book3s32/mmu.c                | 10 ++--
 arch/powerpc/mm/kasan/book3s_32.c             | 59 ++++++++++---------
 3 files changed, 38 insertions(+), 33 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/32/mmu-hash.h b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
index a8982d52f6b1d..cbde06d0fb380 100644
--- a/arch/powerpc/include/asm/book3s/32/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
@@ -102,6 +102,8 @@ extern s32 patch__hash_page_B, patch__hash_page_C;
 extern s32 patch__flush_hash_A0, patch__flush_hash_A1, patch__flush_hash_A2;
 extern s32 patch__flush_hash_B;
 
+int __init find_free_bat(void);
+unsigned int bat_block_size(unsigned long base, unsigned long top);
 #endif /* !__ASSEMBLY__ */
 
 /* We happily ignore the smaller BATs on 601, we don't actually use
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index addecf77dae31..602ab13127b40 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -72,7 +72,7 @@ unsigned long p_block_mapped(phys_addr_t pa)
 	return 0;
 }
 
-static int find_free_bat(void)
+int __init find_free_bat(void)
 {
 	int b;
 	int n = mmu_has_feature(MMU_FTR_USE_HIGH_BATS) ? 8 : 4;
@@ -96,7 +96,7 @@ static int find_free_bat(void)
  * - block size has to be a power of two. This is calculated by finding the
  *   highest bit set to 1.
  */
-static unsigned int block_size(unsigned long base, unsigned long top)
+unsigned int bat_block_size(unsigned long base, unsigned long top)
 {
 	unsigned int max_size = SZ_256M;
 	unsigned int base_shift = (ffs(base) - 1) & 31;
@@ -141,7 +141,7 @@ static unsigned long __init __mmu_mapin_ram(unsigned long base, unsigned long to
 	int idx;
 
 	while ((idx = find_free_bat()) != -1 && base != top) {
-		unsigned int size = block_size(base, top);
+		unsigned int size = bat_block_size(base, top);
 
 		if (size < 128 << 10)
 			break;
@@ -206,12 +206,12 @@ void mmu_mark_initmem_nx(void)
 	unsigned long size;
 
 	for (i = 0; i < nb - 1 && base < top;) {
-		size = block_size(base, top);
+		size = bat_block_size(base, top);
 		setibat(i++, PAGE_OFFSET + base, base, size, PAGE_KERNEL_TEXT);
 		base += size;
 	}
 	if (base < top) {
-		size = block_size(base, top);
+		size = bat_block_size(base, top);
 		if ((top - base) > size) {
 			size <<= 1;
 			if (strict_kernel_rwx_enabled() && base + size > border)
diff --git a/arch/powerpc/mm/kasan/book3s_32.c b/arch/powerpc/mm/kasan/book3s_32.c
index 35b287b0a8da4..450a67ef0bbe1 100644
--- a/arch/powerpc/mm/kasan/book3s_32.c
+++ b/arch/powerpc/mm/kasan/book3s_32.c
@@ -10,48 +10,51 @@ int __init kasan_init_region(void *start, size_t size)
 {
 	unsigned long k_start = (unsigned long)kasan_mem_to_shadow(start);
 	unsigned long k_end = (unsigned long)kasan_mem_to_shadow(start + size);
-	unsigned long k_cur = k_start;
-	int k_size = k_end - k_start;
-	int k_size_base = 1 << (ffs(k_size) - 1);
+	unsigned long k_nobat = k_start;
+	unsigned long k_cur;
+	phys_addr_t phys;
 	int ret;
-	void *block;
 
-	block = memblock_alloc(k_size, k_size_base);
-
-	if (block && k_size_base >= SZ_128K && k_start == ALIGN(k_start, k_size_base)) {
-		int shift = ffs(k_size - k_size_base);
-		int k_size_more = shift ? 1 << (shift - 1) : 0;
-
-		setbat(-1, k_start, __pa(block), k_size_base, PAGE_KERNEL);
-		if (k_size_more >= SZ_128K)
-			setbat(-1, k_start + k_size_base, __pa(block) + k_size_base,
-			       k_size_more, PAGE_KERNEL);
-		if (v_block_mapped(k_start))
-			k_cur = k_start + k_size_base;
-		if (v_block_mapped(k_start + k_size_base))
-			k_cur = k_start + k_size_base + k_size_more;
-
-		update_bats();
+	while (k_nobat < k_end) {
+		unsigned int k_size = bat_block_size(k_nobat, k_end);
+		int idx = find_free_bat();
+
+		if (idx == -1)
+			break;
+		if (k_size < SZ_128K)
+			break;
+		phys = memblock_phys_alloc_range(k_size, k_size, 0,
+						 MEMBLOCK_ALLOC_ANYWHERE);
+		if (!phys)
+			break;
+
+		setbat(idx, k_nobat, phys, k_size, PAGE_KERNEL);
+		k_nobat += k_size;
 	}
+	if (k_nobat != k_start)
+		update_bats();
 
-	if (!block)
-		block = memblock_alloc(k_size, PAGE_SIZE);
-	if (!block)
-		return -ENOMEM;
+	if (k_nobat < k_end) {
+		phys = memblock_phys_alloc_range(k_end - k_nobat, PAGE_SIZE, 0,
+						 MEMBLOCK_ALLOC_ANYWHERE);
+		if (!phys)
+			return -ENOMEM;
+	}
 
 	ret = kasan_init_shadow_page_tables(k_start, k_end);
 	if (ret)
 		return ret;
 
-	kasan_update_early_region(k_start, k_cur, __pte(0));
+	kasan_update_early_region(k_start, k_nobat, __pte(0));
 
-	for (; k_cur < k_end; k_cur += PAGE_SIZE) {
+	for (k_cur = k_nobat; k_cur < k_end; k_cur += PAGE_SIZE) {
 		pmd_t *pmd = pmd_off_k(k_cur);
-		void *va = block + k_cur - k_start;
-		pte_t pte = pfn_pte(PHYS_PFN(__pa(va)), PAGE_KERNEL);
+		pte_t pte = pfn_pte(PHYS_PFN(phys + k_cur - k_nobat), PAGE_KERNEL);
 
 		__set_pte_at(&init_mm, k_cur, pte_offset_kernel(pmd, k_cur), pte, 0);
 	}
 	flush_tlb_kernel_range(k_start, k_end);
+	memset(kasan_mem_to_shadow(start), 0, k_end - k_start);
+
 	return 0;
 }
-- 
GitLab


From b4c9b6afa3a737b5d02828d1f7183ebde282907c Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Wed, 22 Dec 2021 13:07:31 +0000
Subject: [PATCH 3490/4878] powerpc/32: Fix boot failure with GCC latent
 entropy plugin

commit bba496656a73fc1d1330b49c7f82843836e9feb1 upstream.

Boot fails with GCC latent entropy plugin enabled.

This is due to early boot functions trying to access 'latent_entropy'
global data while the kernel is not relocated at its final
destination yet.

As there is no way to tell GCC to use PTRRELOC() to access it,
disable latent entropy plugin in early_32.o and feature-fixups.o and
code-patching.o

Fixes: 38addce8b600 ("gcc-plugins: Add latent_entropy plugin")
Cc: stable@vger.kernel.org # v4.9+
Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215217
Link: https://lore.kernel.org/r/2bac55483b8daf5b1caa163a45fa5f9cdbe18be4.1640178426.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/Makefile | 1 +
 arch/powerpc/lib/Makefile    | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index fe2ef598e2ead..376104c166fcf 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -11,6 +11,7 @@ CFLAGS_prom_init.o      += -fPIC
 CFLAGS_btext.o		+= -fPIC
 endif
 
+CFLAGS_early_32.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
 CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 58991233381ed..0697a0e014ae8 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -19,6 +19,9 @@ CFLAGS_code-patching.o += -DDISABLE_BRANCH_PROFILING
 CFLAGS_feature-fixups.o += -DDISABLE_BRANCH_PROFILING
 endif
 
+CFLAGS_code-patching.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+CFLAGS_feature-fixups.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+
 obj-y += alloc.o code-patching.o feature-fixups.o pmem.o inst.o test_code-patching.o
 
 ifndef CONFIG_KASAN
-- 
GitLab


From 9068bcb2195b64d350ecfbe36964fb9cf3fabcf7 Mon Sep 17 00:00:00 2001
From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Date: Thu, 28 Oct 2021 13:51:14 +0000
Subject: [PATCH 3491/4878] i40e: Increase delay to 1 s after global EMP reset

commit 9b13bd53134c9ddd544a790125199fdbdb505e67 upstream.

Recently simplified i40e_rebuild causes that FW sometimes
is not ready after NVM update, the ping does not return.

Increase the delay in case of EMP reset.
Old delay of 300 ms was introduced for specific cards for 710 series.
Now it works for all the cards and delay was increased.

Fixes: 1fa51a650e1d ("i40e: Add delay after EMP reset for firmware to recover")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index f888a443a067b..eb26cd1f55713 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -10130,15 +10130,9 @@ static void i40e_rebuild(struct i40e_pf *pf, bool reinit, bool lock_acquired)
 	}
 	i40e_get_oem_version(&pf->hw);
 
-	if (test_bit(__I40E_EMP_RESET_INTR_RECEIVED, pf->state) &&
-	    ((hw->aq.fw_maj_ver == 4 && hw->aq.fw_min_ver <= 33) ||
-	     hw->aq.fw_maj_ver < 4) && hw->mac.type == I40E_MAC_XL710) {
-		/* The following delay is necessary for 4.33 firmware and older
-		 * to recover after EMP reset. 200 ms should suffice but we
-		 * put here 300 ms to be sure that FW is ready to operate
-		 * after reset.
-		 */
-		mdelay(300);
+	if (test_and_clear_bit(__I40E_EMP_RESET_INTR_RECEIVED, pf->state)) {
+		/* The following delay is necessary for firmware update. */
+		mdelay(1000);
 	}
 
 	/* re-verify the eeprom if we just had an EMP reset */
-- 
GitLab


From 39896710f7325a3b10cdf6aa9626f71c8853479e Mon Sep 17 00:00:00 2001
From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Date: Fri, 5 Nov 2021 11:17:00 +0000
Subject: [PATCH 3492/4878] i40e: Fix issue when maximum queues is exceeded

commit d701658a50a471591094b3eb3961b4926cc8f104 upstream.

Before this patch VF interface vanished when
maximum queue number was exceeded. Driver tried
to add next queues even if there was not enough
space. PF sent incorrect number of queues to
the VF when there were not enough of them.

Add an additional condition introduced to check
available space in 'qp_pile' before proceeding.
This condition makes it impossible to add queues
if they number is greater than the number resulting
from available space.
Also add the search for free space in PF queue
pair piles.

Without this patch VF interfaces are not seen
when available space for queues has been
exceeded and following logs appears permanently
in dmesg:
"Unable to get VF config (-32)".
"VF 62 failed opcode 3, retval: -5"
"Unable to get VF config due to PF error condition, not retrying"

Fixes: 7daa6bf3294e ("i40e: driver core headers")
Fixes: 41c445ff0f48 ("i40e: main driver core")
Signed-off-by: Jaroslaw Gawin <jaroslawx.gawin@intel.com>
Signed-off-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e.h        |  1 -
 drivers/net/ethernet/intel/i40e/i40e_main.c   | 14 +----
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 59 +++++++++++++++++++
 3 files changed, 61 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 5b83d1bc0e74d..67b0f72f97a24 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -172,7 +172,6 @@ enum i40e_interrupt_policy {
 
 struct i40e_lump_tracking {
 	u16 num_entries;
-	u16 search_hint;
 	u16 list[0];
 #define I40E_PILE_VALID_BIT  0x8000
 #define I40E_IWARP_IRQ_PILE_ID  (I40E_PILE_VALID_BIT - 2)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index eb26cd1f55713..9614ddc1f5490 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -195,10 +195,6 @@ int i40e_free_virt_mem_d(struct i40e_hw *hw, struct i40e_virt_mem *mem)
  * @id: an owner id to stick on the items assigned
  *
  * Returns the base item index of the lump, or negative for error
- *
- * The search_hint trick and lack of advanced fit-finding only work
- * because we're highly likely to have all the same size lump requests.
- * Linear search time and any fragmentation should be minimal.
  **/
 static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
 			 u16 needed, u16 id)
@@ -213,8 +209,7 @@ static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
 		return -EINVAL;
 	}
 
-	/* start the linear search with an imperfect hint */
-	i = pile->search_hint;
+	i = 0;
 	while (i < pile->num_entries) {
 		/* skip already allocated entries */
 		if (pile->list[i] & I40E_PILE_VALID_BIT) {
@@ -233,7 +228,6 @@ static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
 			for (j = 0; j < needed; j++)
 				pile->list[i+j] = id | I40E_PILE_VALID_BIT;
 			ret = i;
-			pile->search_hint = i + j;
 			break;
 		}
 
@@ -256,7 +250,7 @@ static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id)
 {
 	int valid_id = (id | I40E_PILE_VALID_BIT);
 	int count = 0;
-	int i;
+	u16 i;
 
 	if (!pile || index >= pile->num_entries)
 		return -EINVAL;
@@ -268,8 +262,6 @@ static int i40e_put_lump(struct i40e_lump_tracking *pile, u16 index, u16 id)
 		count++;
 	}
 
-	if (count && index < pile->search_hint)
-		pile->search_hint = index;
 
 	return count;
 }
@@ -11321,7 +11313,6 @@ static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
 		return -ENOMEM;
 
 	pf->irq_pile->num_entries = vectors;
-	pf->irq_pile->search_hint = 0;
 
 	/* track first vector for misc interrupts, ignore return */
 	(void)i40e_get_lump(pf, pf->irq_pile, 1, I40E_PILE_VALID_BIT - 1);
@@ -12124,7 +12115,6 @@ static int i40e_sw_init(struct i40e_pf *pf)
 		goto sw_init_done;
 	}
 	pf->qp_pile->num_entries = pf->hw.func_caps.num_tx_qp;
-	pf->qp_pile->search_hint = 0;
 
 	pf->tx_timeout_recovery_level = 1;
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 65c4c4fd359fa..c51701ab189d8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -2563,6 +2563,59 @@ error_param:
 				       aq_ret);
 }
 
+/**
+ * i40e_check_enough_queue - find big enough queue number
+ * @vf: pointer to the VF info
+ * @needed: the number of items needed
+ *
+ * Returns the base item index of the queue, or negative for error
+ **/
+static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
+{
+	unsigned int  i, cur_queues, more, pool_size;
+	struct i40e_lump_tracking *pile;
+	struct i40e_pf *pf = vf->pf;
+	struct i40e_vsi *vsi;
+
+	vsi = pf->vsi[vf->lan_vsi_idx];
+	cur_queues = vsi->alloc_queue_pairs;
+
+	/* if current allocated queues are enough for need */
+	if (cur_queues >= needed)
+		return vsi->base_queue;
+
+	pile = pf->qp_pile;
+	if (cur_queues > 0) {
+		/* if the allocated queues are not zero
+		 * just check if there are enough queues for more
+		 * behind the allocated queues.
+		 */
+		more = needed - cur_queues;
+		for (i = vsi->base_queue + cur_queues;
+			i < pile->num_entries; i++) {
+			if (pile->list[i] & I40E_PILE_VALID_BIT)
+				break;
+
+			if (more-- == 1)
+				/* there is enough */
+				return vsi->base_queue;
+		}
+	}
+
+	pool_size = 0;
+	for (i = 0; i < pile->num_entries; i++) {
+		if (pile->list[i] & I40E_PILE_VALID_BIT) {
+			pool_size = 0;
+			continue;
+		}
+		if (needed <= ++pool_size)
+			/* there is enough */
+			return i;
+	}
+
+	return -ENOMEM;
+}
+
 /**
  * i40e_vc_request_queues_msg
  * @vf: pointer to the VF info
@@ -2597,6 +2650,12 @@ static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
 			 req_pairs - cur_pairs,
 			 pf->queues_left);
 		vfres->num_queue_pairs = pf->queues_left + cur_pairs;
+	} else if (i40e_check_enough_queue(vf, req_pairs) < 0) {
+		dev_warn(&pf->pdev->dev,
+			 "VF %d requested %d more queues, but there is not enough for it.\n",
+			 vf->vf_id,
+			 req_pairs - cur_pairs);
+		vfres->num_queue_pairs = cur_pairs;
 	} else {
 		/* successful request */
 		vf->num_req_queues = req_pairs;
-- 
GitLab


From 768eb705e6381f0c70ca29d4e66f19790d5d19a1 Mon Sep 17 00:00:00 2001
From: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Date: Fri, 26 Nov 2021 11:11:22 +0100
Subject: [PATCH 3493/4878] i40e: Fix queues reservation for XDP

commit 92947844b8beee988c0ce17082b705c2f75f0742 upstream.

When XDP was configured on a system with large number of CPUs
and X722 NIC there was a call trace with NULL pointer dereference.

i40e 0000:87:00.0: failed to get tracking for 256 queues for VSI 0 err -12
i40e 0000:87:00.0: setup of MAIN VSI failed

BUG: kernel NULL pointer dereference, address: 0000000000000000
RIP: 0010:i40e_xdp+0xea/0x1b0 [i40e]
Call Trace:
? i40e_reconfig_rss_queues+0x130/0x130 [i40e]
dev_xdp_install+0x61/0xe0
dev_xdp_attach+0x18a/0x4c0
dev_change_xdp_fd+0x1e6/0x220
do_setlink+0x616/0x1030
? ahci_port_stop+0x80/0x80
? ata_qc_issue+0x107/0x1e0
? lock_timer_base+0x61/0x80
? __mod_timer+0x202/0x380
rtnl_setlink+0xe5/0x170
? bpf_lsm_binder_transaction+0x10/0x10
? security_capable+0x36/0x50
rtnetlink_rcv_msg+0x121/0x350
? rtnl_calcit.isra.0+0x100/0x100
netlink_rcv_skb+0x50/0xf0
netlink_unicast+0x1d3/0x2a0
netlink_sendmsg+0x22a/0x440
sock_sendmsg+0x5e/0x60
__sys_sendto+0xf0/0x160
? __sys_getsockname+0x7e/0xc0
? _copy_from_user+0x3c/0x80
? __sys_setsockopt+0xc8/0x1a0
__x64_sys_sendto+0x20/0x30
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f83fa7a39e0

This was caused by PF queue pile fragmentation due to
flow director VSI queue being placed right after main VSI.
Because of this main VSI was not able to resize its
queue allocation for XDP resulting in no queues allocated
for main VSI when XDP was turned on.

Fix this by always allocating last queue in PF queue pile
for a flow director VSI.

Fixes: 41c445ff0f48 ("i40e: main driver core")
Fixes: 74608d17fe29 ("i40e: add support for XDP_TX action")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 9614ddc1f5490..500f067d0afcc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -209,6 +209,20 @@ static int i40e_get_lump(struct i40e_pf *pf, struct i40e_lump_tracking *pile,
 		return -EINVAL;
 	}
 
+	/* Allocate last queue in the pile for FDIR VSI queue
+	 * so it doesn't fragment the qp_pile
+	 */
+	if (pile == pf->qp_pile && pf->vsi[id]->type == I40E_VSI_FDIR) {
+		if (pile->list[pile->num_entries - 1] & I40E_PILE_VALID_BIT) {
+			dev_err(&pf->pdev->dev,
+				"Cannot allocate queue %d for I40E_VSI_FDIR\n",
+				pile->num_entries - 1);
+			return -ENOMEM;
+		}
+		pile->list[pile->num_entries - 1] = id | I40E_PILE_VALID_BIT;
+		return pile->num_entries - 1;
+	}
+
 	i = 0;
 	while (i < pile->num_entries) {
 		/* skip already allocated entries */
-- 
GitLab


From d2ed5997a94be00ca590b8506c460a622b03611f Mon Sep 17 00:00:00 2001
From: Karen Sornek <karen.sornek@intel.com>
Date: Thu, 2 Dec 2021 12:52:01 +0100
Subject: [PATCH 3494/4878] i40e: Fix for failed to init adminq while VF reset

commit 0f344c8129a5337dae50e31b817dd50a60ff238c upstream.

Fix for failed to init adminq: -53 while VF is resetting via MAC
address changing procedure.
Added sync module to avoid reading deadbeef value in reinit adminq
during software reset.
Without this patch it is possible to trigger VF reset procedure
during reinit adminq. This resulted in an incorrect reading of
value from the AQP registers and generated the -53 error.

Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/intel/i40e/i40e_register.h   |  3 ++
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 44 ++++++++++++++++++-
 .../ethernet/intel/i40e/i40e_virtchnl_pf.h    |  1 +
 3 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_register.h b/drivers/net/ethernet/intel/i40e/i40e_register.h
index 564df22f3f463..8335f151ceefc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_register.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_register.h
@@ -279,6 +279,9 @@
 #define I40E_VFINT_DYN_CTLN(_INTVF) (0x00024800 + ((_INTVF) * 4)) /* _i=0...511 */ /* Reset: VFR */
 #define I40E_VFINT_DYN_CTLN_CLEARPBA_SHIFT 1
 #define I40E_VFINT_DYN_CTLN_CLEARPBA_MASK I40E_MASK(0x1, I40E_VFINT_DYN_CTLN_CLEARPBA_SHIFT)
+#define I40E_VFINT_ICR0_ADMINQ_SHIFT 30
+#define I40E_VFINT_ICR0_ADMINQ_MASK I40E_MASK(0x1, I40E_VFINT_ICR0_ADMINQ_SHIFT)
+#define I40E_VFINT_ICR0_ENA(_VF) (0x0002C000 + ((_VF) * 4)) /* _i=0...127 */ /* Reset: CORER */
 #define I40E_VPINT_AEQCTL(_VF) (0x0002B800 + ((_VF) * 4)) /* _i=0...127 */ /* Reset: CORER */
 #define I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT 0
 #define I40E_VPINT_AEQCTL_ITR_INDX_SHIFT 11
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index c51701ab189d8..f71b7334e2955 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1323,6 +1323,32 @@ static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
 	return aq_ret;
 }
 
+/**
+ * i40e_sync_vfr_reset
+ * @hw: pointer to hw struct
+ * @vf_id: VF identifier
+ *
+ * Before trigger hardware reset, we need to know if no other process has
+ * reserved the hardware for any reset operations. This check is done by
+ * examining the status of the RSTAT1 register used to signal the reset.
+ **/
+static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
+{
+	u32 reg;
+	int i;
+
+	for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
+		reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
+			   I40E_VFINT_ICR0_ADMINQ_MASK;
+		if (reg)
+			return 0;
+
+		usleep_range(100, 200);
+	}
+
+	return -EAGAIN;
+}
+
 /**
  * i40e_trigger_vf_reset
  * @vf: pointer to the VF structure
@@ -1337,9 +1363,11 @@ static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_hw *hw = &pf->hw;
 	u32 reg, reg_idx, bit_idx;
+	bool vf_active;
+	u32 radq;
 
 	/* warn the VF */
-	clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
+	vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
 
 	/* Disable VF's configuration API during reset. The flag is re-enabled
 	 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
@@ -1353,7 +1381,19 @@ static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
 	 * just need to clean up, so don't hit the VFRTRIG register.
 	 */
 	if (!flr) {
-		/* reset VF using VPGEN_VFRTRIG reg */
+		/* Sync VFR reset before trigger next one */
+		radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
+			    I40E_VFINT_ICR0_ADMINQ_MASK;
+		if (vf_active && !radq)
+			/* waiting for finish reset by virtual driver */
+			if (i40e_sync_vfr_reset(hw, vf->vf_id))
+				dev_info(&pf->pdev->dev,
+					 "Reset VF %d never finished\n",
+				vf->vf_id);
+
+		/* Reset VF using VPGEN_VFRTRIG reg. It is also setting
+		 * in progress state in rstat1 register.
+		 */
 		reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
 		reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
 		wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
index 49575a640a84c..03c42fd0fea19 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
@@ -19,6 +19,7 @@
 #define I40E_MAX_VF_PROMISC_FLAGS	3
 
 #define I40E_VF_STATE_WAIT_COUNT	20
+#define I40E_VFR_WAIT_COUNT		100
 
 /* Various queue ctrls */
 enum i40e_queue_ctrl {
-- 
GitLab


From 6aeff8a7c742ce7eb3db470b5ead676160abaa14 Mon Sep 17 00:00:00 2001
From: Joe Damato <jdamato@fastly.com>
Date: Wed, 8 Dec 2021 17:56:33 -0800
Subject: [PATCH 3495/4878] i40e: fix unsigned stat widths

commit 3b8428b84539c78fdc8006c17ebd25afd4722d51 upstream.

Change i40e_update_vsi_stats and struct i40e_vsi to use u64 fields to match
the width of the stats counters in struct i40e_rx_queue_stats.

Update debugfs code to use the correct format specifier for u64.

Fixes: 41c445ff0f48 ("i40e: main driver core")
Signed-off-by: Joe Damato <jdamato@fastly.com>
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/i40e/i40e.h         | 8 ++++----
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 2 +-
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 4 ++--
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 67b0f72f97a24..effdc3361266f 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -754,12 +754,12 @@ struct i40e_vsi {
 	struct rtnl_link_stats64 net_stats_offsets;
 	struct i40e_eth_stats eth_stats;
 	struct i40e_eth_stats eth_stats_offsets;
-	u32 tx_restart;
-	u32 tx_busy;
+	u64 tx_restart;
+	u64 tx_busy;
 	u64 tx_linearize;
 	u64 tx_force_wb;
-	u32 rx_buf_failed;
-	u32 rx_page_failed;
+	u64 rx_buf_failed;
+	u64 rx_page_failed;
 
 	/* These are containers of ring pointers, allocated at run-time */
 	struct i40e_ring **rx_rings;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 714b578b2b49c..1114a15a9ce3c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -240,7 +240,7 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 	dev_info(&pf->pdev->dev,
-		 "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
+		 "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
 		 vsi->tx_restart, vsi->tx_busy,
 		 vsi->rx_buf_failed, vsi->rx_page_failed);
 	rcu_read_lock();
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 500f067d0afcc..bd18a780a0008 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -777,9 +777,9 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
 	struct rtnl_link_stats64 *ns;   /* netdev stats */
 	struct i40e_eth_stats *oes;
 	struct i40e_eth_stats *es;     /* device's eth stats */
-	u32 tx_restart, tx_busy;
+	u64 tx_restart, tx_busy;
 	struct i40e_ring *p;
-	u32 rx_page, rx_buf;
+	u64 rx_page, rx_buf;
 	u64 bytes, packets;
 	unsigned int start;
 	u64 tx_linearize;
-- 
GitLab


From 20f667582189eb3bf73274262a397f6c528d254f Mon Sep 17 00:00:00 2001
From: Linyu Yuan <quic_linyyuan@quicinc.com>
Date: Mon, 10 Jan 2022 20:43:28 +0800
Subject: [PATCH 3496/4878] usb: roles: fix include/linux/usb/role.h compile
 issue

commit 945c37ed564770c78dfe6b9f08bed57a1b4e60ef upstream.

when CONFIG_USB_ROLE_SWITCH is not defined,
add usb_role_switch_find_by_fwnode() definition which return NULL.

Fixes: c6919d5e0cd1 ("usb: roles: Add usb_role_switch_find_by_fwnode()")
Signed-off-by: Linyu Yuan <quic_linyyuan@quicinc.com>
Link: https://lore.kernel.org/r/1641818608-25039-1-git-send-email-quic_linyyuan@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb/role.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/usb/role.h b/include/linux/usb/role.h
index 0164fed31b06c..b9ccaeb8a4aef 100644
--- a/include/linux/usb/role.h
+++ b/include/linux/usb/role.h
@@ -90,6 +90,12 @@ fwnode_usb_role_switch_get(struct fwnode_handle *node)
 
 static inline void usb_role_switch_put(struct usb_role_switch *sw) { }
 
+static inline struct usb_role_switch *
+usb_role_switch_find_by_fwnode(const struct fwnode_handle *fwnode)
+{
+	return NULL;
+}
+
 static inline struct usb_role_switch *
 usb_role_switch_register(struct device *parent,
 			 const struct usb_role_switch_desc *desc)
-- 
GitLab


From 1dbb206730f3e5ce90014ad569ddf8167ec4124a Mon Sep 17 00:00:00 2001
From: Sujit Kautkar <sujitka@chromium.org>
Date: Mon, 10 Jan 2022 10:47:36 -0800
Subject: [PATCH 3497/4878] rpmsg: char: Fix race between the release of
 rpmsg_ctrldev and cdev

commit b7fb2dad571d1e21173c06cef0bced77b323990a upstream.

struct rpmsg_ctrldev contains a struct cdev. The current code frees
the rpmsg_ctrldev struct in rpmsg_ctrldev_release_device(), but the
cdev is a managed object, therefore its release is not predictable
and the rpmsg_ctrldev could be freed before the cdev is entirely
released, as in the backtrace below.

[   93.625603] ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x7c
[   93.636115] WARNING: CPU: 0 PID: 12 at lib/debugobjects.c:488 debug_print_object+0x13c/0x1b0
[   93.644799] Modules linked in: veth xt_cgroup xt_MASQUERADE rfcomm algif_hash algif_skcipher af_alg uinput ip6table_nat fuse uvcvideo videobuf2_vmalloc venus_enc venus_dec videobuf2_dma_contig hci_uart btandroid btqca snd_soc_rt5682_i2c bluetooth qcom_spmi_temp_alarm snd_soc_rt5682v
[   93.715175] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G    B             5.4.163-lockdep #26
[   93.723855] Hardware name: Google Lazor (rev3 - 8) with LTE (DT)
[   93.730055] Workqueue: events kobject_delayed_cleanup
[   93.735271] pstate: 60c00009 (nZCv daif +PAN +UAO)
[   93.740216] pc : debug_print_object+0x13c/0x1b0
[   93.744890] lr : debug_print_object+0x13c/0x1b0
[   93.749555] sp : ffffffacf5bc7940
[   93.752978] x29: ffffffacf5bc7940 x28: dfffffd000000000
[   93.758448] x27: ffffffacdb11a800 x26: dfffffd000000000
[   93.763916] x25: ffffffd0734f856c x24: dfffffd000000000
[   93.769389] x23: 0000000000000000 x22: ffffffd0733c35b0
[   93.774860] x21: ffffffd0751994a0 x20: ffffffd075ec27c0
[   93.780338] x19: ffffffd075199100 x18: 00000000000276e0
[   93.785814] x17: 0000000000000000 x16: dfffffd000000000
[   93.791291] x15: ffffffffffffffff x14: 6e6968207473696c
[   93.796768] x13: 0000000000000000 x12: ffffffd075e2b000
[   93.802244] x11: 0000000000000001 x10: 0000000000000000
[   93.807723] x9 : d13400dff1921900 x8 : d13400dff1921900
[   93.813200] x7 : 0000000000000000 x6 : 0000000000000000
[   93.818676] x5 : 0000000000000080 x4 : 0000000000000000
[   93.824152] x3 : ffffffd0732a0fa4 x2 : 0000000000000001
[   93.829628] x1 : ffffffacf5bc7580 x0 : 0000000000000061
[   93.835104] Call trace:
[   93.837644]  debug_print_object+0x13c/0x1b0
[   93.841963]  __debug_check_no_obj_freed+0x25c/0x3c0
[   93.846987]  debug_check_no_obj_freed+0x18/0x20
[   93.851669]  slab_free_freelist_hook+0xbc/0x1e4
[   93.856346]  kfree+0xfc/0x2f4
[   93.859416]  rpmsg_ctrldev_release_device+0x78/0xb8
[   93.864445]  device_release+0x84/0x168
[   93.868310]  kobject_cleanup+0x12c/0x298
[   93.872356]  kobject_delayed_cleanup+0x10/0x18
[   93.876948]  process_one_work+0x578/0x92c
[   93.881086]  worker_thread+0x804/0xcf8
[   93.884963]  kthread+0x2a8/0x314
[   93.888303]  ret_from_fork+0x10/0x18

The cdev_device_add/del() API was created to address this issue (see
commit '233ed09d7fda ("chardev: add helper function to register char
devs with a struct device")'), use it instead of cdev add/del().

Fixes: c0cdc19f84a4 ("rpmsg: Driver for user space endpoint interface")
Signed-off-by: Sujit Kautkar <sujitka@chromium.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220110104706.v6.1.Iaac908f3e3149a89190ce006ba166e2d3fd247a3@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rpmsg/rpmsg_char.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
index 4bbbacdbf3bb7..8816b1923cdbc 100644
--- a/drivers/rpmsg/rpmsg_char.c
+++ b/drivers/rpmsg/rpmsg_char.c
@@ -458,7 +458,6 @@ static void rpmsg_ctrldev_release_device(struct device *dev)
 
 	ida_simple_remove(&rpmsg_ctrl_ida, dev->id);
 	ida_simple_remove(&rpmsg_minor_ida, MINOR(dev->devt));
-	cdev_del(&ctrldev->cdev);
 	kfree(ctrldev);
 }
 
@@ -493,19 +492,13 @@ static int rpmsg_chrdev_probe(struct rpmsg_device *rpdev)
 	dev->id = ret;
 	dev_set_name(&ctrldev->dev, "rpmsg_ctrl%d", ret);
 
-	ret = cdev_add(&ctrldev->cdev, dev->devt, 1);
+	ret = cdev_device_add(&ctrldev->cdev, &ctrldev->dev);
 	if (ret)
 		goto free_ctrl_ida;
 
 	/* We can now rely on the release function for cleanup */
 	dev->release = rpmsg_ctrldev_release_device;
 
-	ret = device_add(dev);
-	if (ret) {
-		dev_err(&rpdev->dev, "device_add failed: %d\n", ret);
-		put_device(dev);
-	}
-
 	dev_set_drvdata(&rpdev->dev, ctrldev);
 
 	return ret;
@@ -531,7 +524,7 @@ static void rpmsg_chrdev_remove(struct rpmsg_device *rpdev)
 	if (ret)
 		dev_warn(&rpdev->dev, "failed to nuke endpoints: %d\n", ret);
 
-	device_del(&ctrldev->dev);
+	cdev_device_del(&ctrldev->cdev, &ctrldev->dev);
 	put_device(&ctrldev->dev);
 }
 
-- 
GitLab


From fcaf94c49a846ffeaf3efb0faa95a13951ce08c8 Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke <mka@chromium.org>
Date: Mon, 10 Jan 2022 10:47:37 -0800
Subject: [PATCH 3498/4878] rpmsg: char: Fix race between the release of
 rpmsg_eptdev and cdev

commit 7a534ae89e34e9b51acb5a63dd0f88308178b46a upstream.

struct rpmsg_eptdev contains a struct cdev. The current code frees
the rpmsg_eptdev struct in rpmsg_eptdev_destroy(), but the cdev is
a managed object, therefore its release is not predictable and the
rpmsg_eptdev could be freed before the cdev is entirely released.

The cdev_device_add/del() API was created to address this issue
(see commit '233ed09d7fda ("chardev: add helper function to register
char devs with a struct device")'), use it instead of cdev add/del().

Fixes: c0cdc19f84a4 ("rpmsg: Driver for user space endpoint interface")
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220110104706.v6.2.Idde68b05b88d4a2e6e54766c653f3a6d9e419ce6@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rpmsg/rpmsg_char.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
index 8816b1923cdbc..be90d77c5168d 100644
--- a/drivers/rpmsg/rpmsg_char.c
+++ b/drivers/rpmsg/rpmsg_char.c
@@ -92,7 +92,7 @@ static int rpmsg_eptdev_destroy(struct device *dev, void *data)
 	/* wake up any blocked readers */
 	wake_up_interruptible(&eptdev->readq);
 
-	device_del(&eptdev->dev);
+	cdev_device_del(&eptdev->cdev, &eptdev->dev);
 	put_device(&eptdev->dev);
 
 	return 0;
@@ -332,7 +332,6 @@ static void rpmsg_eptdev_release_device(struct device *dev)
 
 	ida_simple_remove(&rpmsg_ept_ida, dev->id);
 	ida_simple_remove(&rpmsg_minor_ida, MINOR(eptdev->dev.devt));
-	cdev_del(&eptdev->cdev);
 	kfree(eptdev);
 }
 
@@ -377,19 +376,13 @@ static int rpmsg_eptdev_create(struct rpmsg_ctrldev *ctrldev,
 	dev->id = ret;
 	dev_set_name(dev, "rpmsg%d", ret);
 
-	ret = cdev_add(&eptdev->cdev, dev->devt, 1);
+	ret = cdev_device_add(&eptdev->cdev, &eptdev->dev);
 	if (ret)
 		goto free_ept_ida;
 
 	/* We can now rely on the release function for cleanup */
 	dev->release = rpmsg_eptdev_release_device;
 
-	ret = device_add(dev);
-	if (ret) {
-		dev_err(dev, "device_add failed: %d\n", ret);
-		put_device(dev);
-	}
-
 	return ret;
 
 free_ept_ida:
-- 
GitLab


From 00849de10f798a9538242824a51b1756e7110754 Mon Sep 17 00:00:00 2001
From: John Meneghini <jmeneghi@redhat.com>
Date: Fri, 14 Jan 2022 23:00:44 -0500
Subject: [PATCH 3499/4878] scsi: bnx2fc: Flush destroy_work queue before
 calling bnx2fc_interface_put()

commit 847f9ea4c5186fdb7b84297e3eeed9e340e83fce upstream.

The bnx2fc_destroy() functions are removing the interface before calling
destroy_work. This results multiple WARNings from sysfs_remove_group() as
the controller rport device attributes are removed too early.

Replace the fcoe_port's destroy_work queue. It's not needed.

The problem is easily reproducible with the following steps.

Example:

  $ dmesg -w &
  $ systemctl enable --now fcoe
  $ fipvlan -s -c ens2f1
  $ fcoeadm -d ens2f1.802
  [  583.464488] host2: libfc: Link down on port (7500a1)
  [  583.472651] bnx2fc: 7500a1 - rport not created Yet!!
  [  583.490468] ------------[ cut here ]------------
  [  583.538725] sysfs group 'power' not found for kobject 'rport-2:0-0'
  [  583.568814] WARNING: CPU: 3 PID: 192 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80
  [  583.607130] Modules linked in: dm_service_time 8021q garp mrp stp llc bnx2fc cnic uio rpcsec_gss_krb5 auth_rpcgss nfsv4 ...
  [  583.942994] CPU: 3 PID: 192 Comm: kworker/3:2 Kdump: loaded Not tainted 5.14.0-39.el9.x86_64 #1
  [  583.984105] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013
  [  584.016535] Workqueue: fc_wq_2 fc_rport_final_delete [scsi_transport_fc]
  [  584.050691] RIP: 0010:sysfs_remove_group+0x6f/0x80
  [  584.074725] Code: ff 5b 48 89 ef 5d 41 5c e9 ee c0 ff ff 48 89 ef e8 f6 b8 ff ff eb d1 49 8b 14 24 48 8b 33 48 c7 c7 ...
  [  584.162586] RSP: 0018:ffffb567c15afdc0 EFLAGS: 00010282
  [  584.188225] RAX: 0000000000000000 RBX: ffffffff8eec4220 RCX: 0000000000000000
  [  584.221053] RDX: ffff8c1586ce84c0 RSI: ffff8c1586cd7cc0 RDI: ffff8c1586cd7cc0
  [  584.255089] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb567c15afc00
  [  584.287954] R10: ffffb567c15afbf8 R11: ffffffff8fbe7f28 R12: ffff8c1486326400
  [  584.322356] R13: ffff8c1486326480 R14: ffff8c1483a4a000 R15: 0000000000000004
  [  584.355379] FS:  0000000000000000(0000) GS:ffff8c1586cc0000(0000) knlGS:0000000000000000
  [  584.394419] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [  584.421123] CR2: 00007fe95a6f7840 CR3: 0000000107674002 CR4: 00000000000606e0
  [  584.454888] Call Trace:
  [  584.466108]  device_del+0xb2/0x3e0
  [  584.481701]  device_unregister+0x13/0x60
  [  584.501306]  bsg_unregister_queue+0x5b/0x80
  [  584.522029]  bsg_remove_queue+0x1c/0x40
  [  584.541884]  fc_rport_final_delete+0xf3/0x1d0 [scsi_transport_fc]
  [  584.573823]  process_one_work+0x1e3/0x3b0
  [  584.592396]  worker_thread+0x50/0x3b0
  [  584.609256]  ? rescuer_thread+0x370/0x370
  [  584.628877]  kthread+0x149/0x170
  [  584.643673]  ? set_kthread_struct+0x40/0x40
  [  584.662909]  ret_from_fork+0x22/0x30
  [  584.680002] ---[ end trace 53575ecefa942ece ]---

Link: https://lore.kernel.org/r/20220115040044.1013475-1-jmeneghi@redhat.com
Fixes: 0cbf32e1681d ("[SCSI] bnx2fc: Avoid calling bnx2fc_if_destroy with unnecessary locks")
Tested-by: Guangwu Zhang <guazhang@redhat.com>
Co-developed-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 6890bbe04a8c1..052e7879704a5 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -80,7 +80,7 @@ static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
 				  struct device *parent, int npiv);
-static void bnx2fc_destroy_work(struct work_struct *work);
+static void bnx2fc_port_destroy(struct fcoe_port *port);
 
 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
@@ -905,9 +905,6 @@ static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 				__bnx2fc_destroy(interface);
 		}
 		mutex_unlock(&bnx2fc_dev_lock);
-
-		/* Ensure ALL destroy work has been completed before return */
-		flush_workqueue(bnx2fc_wq);
 		return;
 
 	default:
@@ -1213,8 +1210,8 @@ static int bnx2fc_vport_destroy(struct fc_vport *vport)
 	mutex_unlock(&n_port->lp_mutex);
 	bnx2fc_free_vport(interface->hba, port->lport);
 	bnx2fc_port_shutdown(port->lport);
+	bnx2fc_port_destroy(port);
 	bnx2fc_interface_put(interface);
-	queue_work(bnx2fc_wq, &port->destroy_work);
 	return 0;
 }
 
@@ -1523,7 +1520,6 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
 	port->lport = lport;
 	port->priv = interface;
 	port->get_netdev = bnx2fc_netdev;
-	INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
 
 	/* Configure fcoe_port */
 	rc = bnx2fc_lport_config(lport);
@@ -1651,8 +1647,8 @@ static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
 	bnx2fc_interface_cleanup(interface);
 	bnx2fc_stop(interface);
 	list_del(&interface->list);
+	bnx2fc_port_destroy(port);
 	bnx2fc_interface_put(interface);
-	queue_work(bnx2fc_wq, &port->destroy_work);
 }
 
 /**
@@ -1692,15 +1688,12 @@ netdev_err:
 	return rc;
 }
 
-static void bnx2fc_destroy_work(struct work_struct *work)
+static void bnx2fc_port_destroy(struct fcoe_port *port)
 {
-	struct fcoe_port *port;
 	struct fc_lport *lport;
 
-	port = container_of(work, struct fcoe_port, destroy_work);
 	lport = port->lport;
-
-	BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
+	BNX2FC_HBA_DBG(lport, "Entered %s, destroying lport %p\n", __func__, lport);
 
 	bnx2fc_if_destroy(lport);
 }
@@ -2554,9 +2547,6 @@ static void bnx2fc_ulp_exit(struct cnic_dev *dev)
 			__bnx2fc_destroy(interface);
 	mutex_unlock(&bnx2fc_dev_lock);
 
-	/* Ensure ALL destroy work has been completed before return */
-	flush_workqueue(bnx2fc_wq);
-
 	bnx2fc_ulp_stop(hba);
 	/* unregister cnic device */
 	if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
-- 
GitLab


From feb770cc00a8eb268c787d5195af9b9abdcd2226 Mon Sep 17 00:00:00 2001
From: Ido Schimmel <idosch@nvidia.com>
Date: Thu, 20 Jan 2022 10:05:46 +0200
Subject: [PATCH 3500/4878] ipv6_tunnel: Rate limit warning messages

commit 6cee105e7f2ced596373951d9ea08dacc3883c68 upstream.

The warning messages can be invoked from the data path for every packet
transmitted through an ip6gre netdev, leading to high CPU utilization.

Fix that by rate limiting the messages.

Fixes: 09c6bbf090ec ("[IPV6]: Do mandatory IPv6 tunnel endpoint checks in realtime")
Reported-by: Maksym Yaremchuk <maksymy@nvidia.com>
Tested-by: Maksym Yaremchuk <maksymy@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/ip6_tunnel.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 08441f06afd48..3a2741569b847 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1066,14 +1066,14 @@ int ip6_tnl_xmit_ctl(struct ip6_tnl *t,
 
 		if (unlikely(!ipv6_chk_addr_and_flags(net, laddr, ldev, false,
 						      0, IFA_F_TENTATIVE)))
-			pr_warn("%s xmit: Local address not yet configured!\n",
-				p->name);
+			pr_warn_ratelimited("%s xmit: Local address not yet configured!\n",
+					    p->name);
 		else if (!(p->flags & IP6_TNL_F_ALLOW_LOCAL_REMOTE) &&
 			 !ipv6_addr_is_multicast(raddr) &&
 			 unlikely(ipv6_chk_addr_and_flags(net, raddr, ldev,
 							  true, 0, IFA_F_TENTATIVE)))
-			pr_warn("%s xmit: Routing loop! Remote address found on this node!\n",
-				p->name);
+			pr_warn_ratelimited("%s xmit: Routing loop! Remote address found on this node!\n",
+					    p->name);
 		else
 			ret = 1;
 		rcu_read_unlock();
-- 
GitLab


From db044d97460ea792110eb8b971e82569ded536c6 Mon Sep 17 00:00:00 2001
From: Congyu Liu <liu3101@purdue.edu>
Date: Tue, 18 Jan 2022 14:20:13 -0500
Subject: [PATCH 3501/4878] net: fix information leakage in /proc/net/ptype

commit 47934e06b65637c88a762d9c98329ae6e3238888 upstream.

In one net namespace, after creating a packet socket without binding
it to a device, users in other net namespaces can observe the new
`packet_type` added by this packet socket by reading `/proc/net/ptype`
file. This is minor information leakage as packet socket is
namespace aware.

Add a net pointer in `packet_type` to keep the net namespace of
of corresponding packet socket. In `ptype_seq_show`, this net pointer
must be checked when it is not NULL.

Fixes: 2feb27dbe00c ("[NETNS]: Minor information leak via /proc/net/ptype file.")
Signed-off-by: Congyu Liu <liu3101@purdue.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/netdevice.h | 1 +
 net/core/net-procfs.c     | 3 ++-
 net/packet/af_packet.c    | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3476d20b75d49..fe3155736d635 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2543,6 +2543,7 @@ struct packet_type {
 					      struct net_device *);
 	bool			(*id_match)(struct packet_type *ptype,
 					    struct sock *sk);
+	struct net		*af_packet_net;
 	void			*af_packet_priv;
 	struct list_head	list;
 };
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index c714e6a9dad4c..e12c67f9492ba 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -263,7 +263,8 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
 
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq, "Type Device      Function\n");
-	else if (pt->dev == NULL || dev_net(pt->dev) == seq_file_net(seq)) {
+	else if ((!pt->af_packet_net || net_eq(pt->af_packet_net, seq_file_net(seq))) &&
+		 (!pt->dev || net_eq(dev_net(pt->dev), seq_file_net(seq)))) {
 		if (pt->type == htons(ETH_P_ALL))
 			seq_puts(seq, "ALL ");
 		else
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f78097aa403a8..6ef035494f30d 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1735,6 +1735,7 @@ static int fanout_add(struct sock *sk, struct fanout_args *args)
 		match->prot_hook.dev = po->prot_hook.dev;
 		match->prot_hook.func = packet_rcv_fanout;
 		match->prot_hook.af_packet_priv = match;
+		match->prot_hook.af_packet_net = read_pnet(&match->net);
 		match->prot_hook.id_match = match_fanout_group;
 		match->max_num_members = args->max_num_members;
 		list_add(&match->list, &fanout_list);
@@ -3323,6 +3324,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
 		po->prot_hook.func = packet_rcv_spkt;
 
 	po->prot_hook.af_packet_priv = sk;
+	po->prot_hook.af_packet_net = sock_net(sk);
 
 	if (proto) {
 		po->prot_hook.type = proto;
-- 
GitLab


From 925cbd596aa21f62e1c872c8d29a6f124cd31611 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 7 Jan 2022 12:36:41 -0800
Subject: [PATCH 3502/4878] hwmon: (lm90) Mark alert as broken for
 MAX6646/6647/6649

commit f614629f9c1080dcc844a8430e3fb4c37ebbf05d upstream.

Experiments with MAX6646 and MAX6648 show that the alert function of those
chips is broken, similar to other chips supported by the lm90 driver.
Mark it accordingly.

Fixes: 4667bcb8d8fc ("hwmon: (lm90) Introduce chip parameter structure")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/lm90.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 959446b0137bc..36e33b030a9d0 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -394,7 +394,7 @@ static const struct lm90_params lm90_params[] = {
 		.max_convrate = 9,
 	},
 	[max6646] = {
-		.flags = LM90_HAVE_CRIT,
+		.flags = LM90_HAVE_CRIT | LM90_HAVE_BROKEN_ALERT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 6,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
-- 
GitLab


From 7bcb0c19abf40ac82e58a3bf3ee81c6829058b70 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 7 Jan 2022 11:11:00 -0800
Subject: [PATCH 3503/4878] hwmon: (lm90) Mark alert as broken for MAX6680

commit 94746b0ba479743355e0d3cc1cb9cfe3011fb8be upstream.

Experiments with MAX6680 and MAX6681 show that the alert function of those
chips is broken, similar to other chips supported by the lm90 driver.
Mark it accordingly.

Fixes: 4667bcb8d8fc ("hwmon: (lm90) Introduce chip parameter structure")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/lm90.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 36e33b030a9d0..36c04feedc5d8 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -418,7 +418,7 @@ static const struct lm90_params lm90_params[] = {
 	},
 	[max6680] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_CRIT
-		  | LM90_HAVE_CRIT_ALRM_SWP,
+		  | LM90_HAVE_CRIT_ALRM_SWP | LM90_HAVE_BROKEN_ALERT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 7,
 	},
-- 
GitLab


From 283aa5a5afbc8c080b36d5044853b8247c795c39 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Sat, 22 Jan 2022 06:40:56 -0500
Subject: [PATCH 3504/4878] ping: fix the sk_bound_dev_if match in ping_lookup

commit 2afc3b5a31f9edf3ef0f374f5d70610c79c93a42 upstream.

When 'ping' changes to use PING socket instead of RAW socket by:

   # sysctl -w net.ipv4.ping_group_range="0 100"

the selftests 'router_broadcast.sh' will fail, as such command

  # ip vrf exec vrf-h1 ping -I veth0 198.51.100.255 -b

can't receive the response skb by the PING socket. It's caused by mismatch
of sk_bound_dev_if and dif in ping_rcv() when looking up the PING socket,
as dif is vrf-h1 if dif's master was set to vrf-h1.

This patch is to fix this regression by also checking the sk_bound_dev_if
against sdif so that the packets can stil be received even if the socket
is not bound to the vrf device but to the real iif.

Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/ping.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 8ce8b7300b9d3..a5722905456c2 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -220,7 +220,8 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 			continue;
 		}
 
-		if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)
+		if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif &&
+		    sk->sk_bound_dev_if != inet_sdif(skb))
 			continue;
 
 		sock_hold(sk);
-- 
GitLab


From b26fed25e67bc09f28f998569ed14022e07b174b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 26 Jan 2022 17:10:22 -0800
Subject: [PATCH 3505/4878] ipv4: avoid using shared IP generator for connected
 sockets

commit 23f57406b82de51809d5812afd96f210f8b627f3 upstream.

ip_select_ident_segs() has been very conservative about using
the connected socket private generator only for packets with IP_DF
set, claiming it was needed for some VJ compression implementations.

As mentioned in this referenced document, this can be abused.
(Ref: Off-Path TCP Exploits of the Mixed IPID Assignment)

Before switching to pure random IPID generation and possibly hurt
some workloads, lets use the private inet socket generator.

Not only this will remove one vulnerability, this will also
improve performance of TCP flows using pmtudisc==IP_PMTUDISC_DONT

Fixes: 73f156a6e8c1 ("inetpeer: get rid of ip_id_count")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reported-by: Ray Che <xijiache@gmail.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/ip.h | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/include/net/ip.h b/include/net/ip.h
index 5538e54d4620c..de2dc22a78f93 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -506,19 +506,18 @@ static inline void ip_select_ident_segs(struct net *net, struct sk_buff *skb,
 {
 	struct iphdr *iph = ip_hdr(skb);
 
+	/* We had many attacks based on IPID, use the private
+	 * generator as much as we can.
+	 */
+	if (sk && inet_sk(sk)->inet_daddr) {
+		iph->id = htons(inet_sk(sk)->inet_id);
+		inet_sk(sk)->inet_id += segs;
+		return;
+	}
 	if ((iph->frag_off & htons(IP_DF)) && !skb->ignore_df) {
-		/* This is only to work around buggy Windows95/2000
-		 * VJ compression implementations.  If the ID field
-		 * does not change, they drop every other packet in
-		 * a TCP stream using header compression.
-		 */
-		if (sk && inet_sk(sk)->inet_daddr) {
-			iph->id = htons(inet_sk(sk)->inet_id);
-			inet_sk(sk)->inet_id += segs;
-		} else {
-			iph->id = 0;
-		}
+		iph->id = 0;
 	} else {
+		/* Unfortunately we need the big hammer to get a suitable IPID */
 		__ip_select_ident(net, iph, segs);
 	}
 }
-- 
GitLab


From b48a05cee2c05e021036305b774ddf19dfb532b4 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 6 Jan 2022 11:48:52 -0800
Subject: [PATCH 3506/4878] hwmon: (lm90) Reduce maximum conversion rate for
 G781

[ Upstream commit a66c5ed539277b9f2363bbace0dba88b85b36c26 ]

According to its datasheet, G781 supports a maximum conversion rate value
of 8 (62.5 ms). However, chips labeled G781 and G780 were found to only
support a maximum conversion rate value of 7 (125 ms). On the other side,
chips labeled G781-1 and G784 were found to support a conversion rate value
of 8. There is no known means to distinguish G780 from G781 or G784; all
chips report the same manufacturer ID and chip revision.
Setting the conversion rate register value to 8 on chips not supporting
it causes unexpected behavior since the real conversion rate is set to 0
(16 seconds) if a value of 8 is written into the conversion rate register.
Limit the conversion rate register value to 7 for all G78x chips to avoid
the problem.

Fixes: ae544f64cc7b ("hwmon: (lm90) Add support for GMT G781")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/lm90.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 36c04feedc5d8..ee9d49d4d8d07 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -373,7 +373,7 @@ static const struct lm90_params lm90_params[] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
 		  | LM90_HAVE_BROKEN_ALERT | LM90_HAVE_CRIT,
 		.alert_alarms = 0x7c,
-		.max_convrate = 8,
+		.max_convrate = 7,
 	},
 	[lm86] = {
 		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
-- 
GitLab


From ce8c552b88ca25d775ecd0a0fbef4e0e03de9ed2 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Thu, 6 Jan 2022 18:24:02 -0500
Subject: [PATCH 3507/4878] NFSv4: Handle case where the lookup of a directory
 fails

commit ac795161c93699d600db16c1a8cc23a65a1eceaf upstream.

If the application sets the O_DIRECTORY flag, and tries to open a
regular file, nfs_atomic_open() will punt to doing a regular lookup.
If the server then returns a regular file, we will happily return a
file descriptor with uninitialised open state.

The fix is to return the expected ENOTDIR error in these cases.

Reported-by: Lyu Tao <tao.lyu@epfl.ch>
Fixes: 0dd2b474d0b6 ("nfs: implement i_op->atomic_open()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/dir.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 8b963c72dd3b1..6e55d9763a198 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1777,6 +1777,19 @@ out:
 
 no_open:
 	res = nfs_lookup(dir, dentry, lookup_flags);
+	if (!res) {
+		inode = d_inode(dentry);
+		if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
+		    !S_ISDIR(inode->i_mode))
+			res = ERR_PTR(-ENOTDIR);
+	} else if (!IS_ERR(res)) {
+		inode = d_inode(res);
+		if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
+		    !S_ISDIR(inode->i_mode)) {
+			dput(res);
+			res = ERR_PTR(-ENOTDIR);
+		}
+	}
 	if (switched) {
 		d_lookup_done(dentry);
 		if (!res)
-- 
GitLab


From 87880e3803ced144ed5957d91a0facb52d4399d2 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Thu, 6 Jan 2022 18:24:03 -0500
Subject: [PATCH 3508/4878] NFSv4: nfs_atomic_open() can race when looking up a
 non-regular file

commit 1751fc1db36f6f411709e143d5393f92d12137a9 upstream.

If the file type changes back to being a regular file on the server
between the failed OPEN and our LOOKUP, then we need to re-run the OPEN.

Fixes: 0dd2b474d0b6 ("nfs: implement i_op->atomic_open()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/dir.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 6e55d9763a198..1276437b48deb 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1782,12 +1782,17 @@ no_open:
 		if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
 		    !S_ISDIR(inode->i_mode))
 			res = ERR_PTR(-ENOTDIR);
+		else if (inode && S_ISREG(inode->i_mode))
+			res = ERR_PTR(-EOPENSTALE);
 	} else if (!IS_ERR(res)) {
 		inode = d_inode(res);
 		if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
 		    !S_ISDIR(inode->i_mode)) {
 			dput(res);
 			res = ERR_PTR(-ENOTDIR);
+		} else if (inode && S_ISREG(inode->i_mode)) {
+			dput(res);
+			res = ERR_PTR(-EOPENSTALE);
 		}
 	}
 	if (switched) {
-- 
GitLab


From f57a99c9a55c57e26ffb5adcf0bb37919decafed Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@chinatelecom.cn>
Date: Fri, 21 Jan 2022 17:15:31 +0800
Subject: [PATCH 3509/4878] net-procfs: show net devices bound packet types

commit 1d10f8a1f40b965d449e8f2d5ed7b96a7c138b77 upstream.

After commit:7866a621043f ("dev: add per net_device packet type chains"),
we can not get packet types that are bound to a specified net device by
/proc/net/ptype, this patch fix the regression.

Run "tcpdump -i ens192 udp -nns0" Before and after apply this patch:

Before:
  [root@localhost ~]# cat /proc/net/ptype
  Type Device      Function
  0800          ip_rcv
  0806          arp_rcv
  86dd          ipv6_rcv

After:
  [root@localhost ~]# cat /proc/net/ptype
  Type Device      Function
  ALL  ens192   tpacket_rcv
  0800          ip_rcv
  0806          arp_rcv
  86dd          ipv6_rcv

v1 -> v2:
  - fix the regression rather than adding new /proc API as
    suggested by Stephen Hemminger.

Fixes: 7866a621043f ("dev: add per net_device packet type chains")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/net-procfs.c | 35 ++++++++++++++++++++++++++++++++---
 1 file changed, 32 insertions(+), 3 deletions(-)

diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index e12c67f9492ba..eadb696360b48 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -193,12 +193,23 @@ static const struct seq_operations softnet_seq_ops = {
 	.show  = softnet_seq_show,
 };
 
-static void *ptype_get_idx(loff_t pos)
+static void *ptype_get_idx(struct seq_file *seq, loff_t pos)
 {
+	struct list_head *ptype_list = NULL;
 	struct packet_type *pt = NULL;
+	struct net_device *dev;
 	loff_t i = 0;
 	int t;
 
+	for_each_netdev_rcu(seq_file_net(seq), dev) {
+		ptype_list = &dev->ptype_all;
+		list_for_each_entry_rcu(pt, ptype_list, list) {
+			if (i == pos)
+				return pt;
+			++i;
+		}
+	}
+
 	list_for_each_entry_rcu(pt, &ptype_all, list) {
 		if (i == pos)
 			return pt;
@@ -219,22 +230,40 @@ static void *ptype_seq_start(struct seq_file *seq, loff_t *pos)
 	__acquires(RCU)
 {
 	rcu_read_lock();
-	return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
+	return *pos ? ptype_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
 }
 
 static void *ptype_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
+	struct net_device *dev;
 	struct packet_type *pt;
 	struct list_head *nxt;
 	int hash;
 
 	++*pos;
 	if (v == SEQ_START_TOKEN)
-		return ptype_get_idx(0);
+		return ptype_get_idx(seq, 0);
 
 	pt = v;
 	nxt = pt->list.next;
+	if (pt->dev) {
+		if (nxt != &pt->dev->ptype_all)
+			goto found;
+
+		dev = pt->dev;
+		for_each_netdev_continue_rcu(seq_file_net(seq), dev) {
+			if (!list_empty(&dev->ptype_all)) {
+				nxt = dev->ptype_all.next;
+				goto found;
+			}
+		}
+
+		nxt = ptype_all.next;
+		goto ptype_all;
+	}
+
 	if (pt->type == htons(ETH_P_ALL)) {
+ptype_all:
 		if (nxt != &ptype_all)
 			goto found;
 		hash = 0;
-- 
GitLab


From 82c310d04b0fdd48dfece56a4186f5d0940185d8 Mon Sep 17 00:00:00 2001
From: Xianting Tian <xianting.tian@linux.alibaba.com>
Date: Wed, 12 Jan 2022 20:33:34 +0800
Subject: [PATCH 3510/4878] drm/msm: Fix wrong size calculation

commit 0a727b459ee39bd4c5ced19d6024258ac87b6b2e upstream.

For example, memory-region in .dts as below,
	reg = <0x0 0x50000000 0x0 0x20000000>

We can get below values,
struct resource r;
r.start = 0x50000000;
r.end	= 0x6fffffff;

So the size should be:
size = r.end - r.start + 1 = 0x20000000

Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Fixes: 072f1f9168ed ("drm/msm: add support for "stolen" mem")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220112123334.749776-1-xianting.tian@linux.alibaba.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/msm_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 33e42b2f9cfcb..e37e5afc680a2 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -350,7 +350,7 @@ static int msm_init_vram(struct drm_device *dev)
 		of_node_put(node);
 		if (ret)
 			return ret;
-		size = r.end - r.start;
+		size = r.end - r.start + 1;
 		DRM_INFO("using VRAM carveout: %lx@%pa\n", size, &r.start);
 
 		/* if we have no IOMMU, then we need to use carveout allocator.
-- 
GitLab


From 3ab44a408bbadaaa44c48eabdd1f6f438af96327 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 30 Dec 2021 07:09:40 +0000
Subject: [PATCH 3511/4878] drm/msm/dsi: Fix missing put_device() call in
 dsi_get_phy

commit c04c3148ca12227d92f91b355b4538cc333c9922 upstream.

If of_find_device_by_node() succeeds, dsi_get_phy() doesn't
a corresponding put_device(). Thus add put_device() to fix the exception
handling.

Fixes: ec31abf ("drm/msm/dsi: Separate PHY to another platform device")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20211230070943.18116-1-linmq006@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/dsi/dsi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index 1adead764feed..f845333593daa 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -33,7 +33,12 @@ static int dsi_get_phy(struct msm_dsi *msm_dsi)
 
 	of_node_put(phy_node);
 
-	if (!phy_pdev || !msm_dsi->phy) {
+	if (!phy_pdev) {
+		DRM_DEV_ERROR(&pdev->dev, "%s: phy driver is not ready\n", __func__);
+		return -EPROBE_DEFER;
+	}
+	if (!msm_dsi->phy) {
+		put_device(&phy_pdev->dev);
 		DRM_DEV_ERROR(&pdev->dev, "%s: phy driver is not ready\n", __func__);
 		return -EPROBE_DEFER;
 	}
-- 
GitLab


From 79c0b5287ded74f4eacde4dfd8aa0a76cbd853b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Sun, 16 Jan 2022 19:18:44 +0100
Subject: [PATCH 3512/4878] drm/msm/dsi: invalid parameter check in
 msm_dsi_phy_enable
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 5e761a2287234bc402ba7ef07129f5103bcd775c upstream.

The function performs a check on the "phy" input parameter, however, it
is used before the check.

Initialize the "dev" variable after the sanity check to avoid a possible
NULL pointer dereference.

Fixes: 5c8290284402b ("drm/msm/dsi: Split PHY drivers to separate files")
Addresses-Coverity-ID: 1493860 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220116181844.7400-1-jose.exposito89@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
index e8c1a727179cc..e07986ab52c22 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
@@ -769,12 +769,14 @@ void __exit msm_dsi_phy_driver_unregister(void)
 int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
 			struct msm_dsi_phy_clk_request *clk_req)
 {
-	struct device *dev = &phy->pdev->dev;
+	struct device *dev;
 	int ret;
 
 	if (!phy || !phy->cfg->ops.enable)
 		return -EINVAL;
 
+	dev = &phy->pdev->dev;
+
 	ret = dsi_phy_enable_resource(phy);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "%s: resource enable failed, %d\n",
-- 
GitLab


From 4cd0ef621509950b30503a4d2fd7047cb7eaf0de Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 20 Jan 2022 09:41:12 -0800
Subject: [PATCH 3513/4878] ipv6: annotate accesses to fn->fn_sernum

commit aafc2e3285c2d7a79b7ee15221c19fbeca7b1509 upstream.

struct fib6_node's fn_sernum field can be
read while other threads change it.

Add READ_ONCE()/WRITE_ONCE() annotations.

Do not change existing smp barriers in fib6_get_cookie_safe()
and __fib6_update_sernum_upto_root()

syzbot reported:

BUG: KCSAN: data-race in fib6_clean_node / inet6_csk_route_socket

write to 0xffff88813df62e2c of 4 bytes by task 1920 on cpu 1:
 fib6_clean_node+0xc2/0x260 net/ipv6/ip6_fib.c:2178
 fib6_walk_continue+0x38e/0x430 net/ipv6/ip6_fib.c:2112
 fib6_walk net/ipv6/ip6_fib.c:2160 [inline]
 fib6_clean_tree net/ipv6/ip6_fib.c:2240 [inline]
 __fib6_clean_all+0x1a9/0x2e0 net/ipv6/ip6_fib.c:2256
 fib6_flush_trees+0x6c/0x80 net/ipv6/ip6_fib.c:2281
 rt_genid_bump_ipv6 include/net/net_namespace.h:488 [inline]
 addrconf_dad_completed+0x57f/0x870 net/ipv6/addrconf.c:4230
 addrconf_dad_work+0x908/0x1170
 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
 worker_thread+0x616/0xa70 kernel/workqueue.c:2454
 kthread+0x1bf/0x1e0 kernel/kthread.c:359
 ret_from_fork+0x1f/0x30

read to 0xffff88813df62e2c of 4 bytes by task 15701 on cpu 0:
 fib6_get_cookie_safe include/net/ip6_fib.h:285 [inline]
 rt6_get_cookie include/net/ip6_fib.h:306 [inline]
 ip6_dst_store include/net/ip6_route.h:234 [inline]
 inet6_csk_route_socket+0x352/0x3c0 net/ipv6/inet6_connection_sock.c:109
 inet6_csk_xmit+0x91/0x1e0 net/ipv6/inet6_connection_sock.c:121
 __tcp_transmit_skb+0x1323/0x1840 net/ipv4/tcp_output.c:1402
 tcp_transmit_skb net/ipv4/tcp_output.c:1420 [inline]
 tcp_write_xmit+0x1450/0x4460 net/ipv4/tcp_output.c:2680
 __tcp_push_pending_frames+0x68/0x1c0 net/ipv4/tcp_output.c:2864
 tcp_push+0x2d9/0x2f0 net/ipv4/tcp.c:725
 mptcp_push_release net/mptcp/protocol.c:1491 [inline]
 __mptcp_push_pending+0x46c/0x490 net/mptcp/protocol.c:1578
 mptcp_sendmsg+0x9ec/0xa50 net/mptcp/protocol.c:1764
 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:643
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 kernel_sendmsg+0x97/0xd0 net/socket.c:745
 sock_no_sendpage+0x84/0xb0 net/core/sock.c:3086
 inet_sendpage+0x9d/0xc0 net/ipv4/af_inet.c:834
 kernel_sendpage+0x187/0x200 net/socket.c:3492
 sock_sendpage+0x5a/0x70 net/socket.c:1007
 pipe_to_sendpage+0x128/0x160 fs/splice.c:364
 splice_from_pipe_feed fs/splice.c:418 [inline]
 __splice_from_pipe+0x207/0x500 fs/splice.c:562
 splice_from_pipe fs/splice.c:597 [inline]
 generic_splice_sendpage+0x94/0xd0 fs/splice.c:746
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x80/0xa0 fs/splice.c:936
 splice_direct_to_actor+0x345/0x650 fs/splice.c:891
 do_splice_direct+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000026f -> 0x00000271

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 15701 Comm: syz-executor.2 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

The Fixes tag I chose is probably arbitrary, I do not think
we need to backport this patch to older kernels.

Fixes: c5cff8561d2d ("ipv6: add rcu grace period before freeing fib6_node")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220120174112.1126644-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/ip6_fib.h |  2 +-
 net/ipv6/ip6_fib.c    | 23 +++++++++++++----------
 net/ipv6/route.c      |  2 +-
 3 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 88bc66b8d02b0..95d93ecf07371 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -280,7 +280,7 @@ static inline bool fib6_get_cookie_safe(const struct fib6_info *f6i,
 	fn = rcu_dereference(f6i->fib6_node);
 
 	if (fn) {
-		*cookie = fn->fn_sernum;
+		*cookie = READ_ONCE(fn->fn_sernum);
 		/* pairs with smp_wmb() in fib6_update_sernum_upto_root() */
 		smp_rmb();
 		status = true;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index e43f1fbac28b6..c783b91231321 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -110,7 +110,7 @@ void fib6_update_sernum(struct net *net, struct fib6_info *f6i)
 	fn = rcu_dereference_protected(f6i->fib6_node,
 			lockdep_is_held(&f6i->fib6_table->tb6_lock));
 	if (fn)
-		fn->fn_sernum = fib6_new_sernum(net);
+		WRITE_ONCE(fn->fn_sernum, fib6_new_sernum(net));
 }
 
 /*
@@ -587,12 +587,13 @@ static int fib6_dump_table(struct fib6_table *table, struct sk_buff *skb,
 		spin_unlock_bh(&table->tb6_lock);
 		if (res > 0) {
 			cb->args[4] = 1;
-			cb->args[5] = w->root->fn_sernum;
+			cb->args[5] = READ_ONCE(w->root->fn_sernum);
 		}
 	} else {
-		if (cb->args[5] != w->root->fn_sernum) {
+		int sernum = READ_ONCE(w->root->fn_sernum);
+		if (cb->args[5] != sernum) {
 			/* Begin at the root if the tree changed */
-			cb->args[5] = w->root->fn_sernum;
+			cb->args[5] = sernum;
 			w->state = FWS_INIT;
 			w->node = w->root;
 			w->skip = w->count;
@@ -1342,7 +1343,7 @@ static void __fib6_update_sernum_upto_root(struct fib6_info *rt,
 	/* paired with smp_rmb() in rt6_get_cookie_safe() */
 	smp_wmb();
 	while (fn) {
-		fn->fn_sernum = sernum;
+		WRITE_ONCE(fn->fn_sernum, sernum);
 		fn = rcu_dereference_protected(fn->parent,
 				lockdep_is_held(&rt->fib6_table->tb6_lock));
 	}
@@ -2171,8 +2172,8 @@ static int fib6_clean_node(struct fib6_walker *w)
 	};
 
 	if (c->sernum != FIB6_NO_SERNUM_CHANGE &&
-	    w->node->fn_sernum != c->sernum)
-		w->node->fn_sernum = c->sernum;
+	    READ_ONCE(w->node->fn_sernum) != c->sernum)
+		WRITE_ONCE(w->node->fn_sernum, c->sernum);
 
 	if (!c->func) {
 		WARN_ON_ONCE(c->sernum == FIB6_NO_SERNUM_CHANGE);
@@ -2536,7 +2537,7 @@ static void ipv6_route_seq_setup_walk(struct ipv6_route_iter *iter,
 	iter->w.state = FWS_INIT;
 	iter->w.node = iter->w.root;
 	iter->w.args = iter;
-	iter->sernum = iter->w.root->fn_sernum;
+	iter->sernum = READ_ONCE(iter->w.root->fn_sernum);
 	INIT_LIST_HEAD(&iter->w.lh);
 	fib6_walker_link(net, &iter->w);
 }
@@ -2564,8 +2565,10 @@ static struct fib6_table *ipv6_route_seq_next_table(struct fib6_table *tbl,
 
 static void ipv6_route_check_sernum(struct ipv6_route_iter *iter)
 {
-	if (iter->sernum != iter->w.root->fn_sernum) {
-		iter->sernum = iter->w.root->fn_sernum;
+	int sernum = READ_ONCE(iter->w.root->fn_sernum);
+
+	if (iter->sernum != sernum) {
+		iter->sernum = sernum;
 		iter->w.state = FWS_INIT;
 		iter->w.node = iter->w.root;
 		WARN_ON(iter->w.skip);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 654bf4ca61260..352e645c546eb 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2674,7 +2674,7 @@ static void ip6_link_failure(struct sk_buff *skb)
 			if (from) {
 				fn = rcu_dereference(from->fib6_node);
 				if (fn && (rt->rt6i_flags & RTF_DEFAULT))
-					fn->fn_sernum = -1;
+					WRITE_ONCE(fn->fn_sernum, -1);
 			}
 		}
 		rcu_read_unlock();
-- 
GitLab


From 666f6ab882ea1953e07ace36d022339beb8b3b34 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Wed, 15 Dec 2021 16:38:15 -0500
Subject: [PATCH 3514/4878] NFS: Ensure the server has an up to date ctime
 before hardlinking

[ Upstream commit 204975036b34f55237bc44c8a302a88468ef21b5 ]

Creating a hard link is required by POSIX to update the file ctime, so
ensure that the file data is synced to disk so that we don't clobber the
updated ctime by writing back after creating the hard link.

Fixes: 9f7682728728 ("NFS: Move the delegation return down into nfs4_proc_link()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/dir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 1276437b48deb..d98386f398abe 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2192,6 +2192,8 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
 
 	trace_nfs_link_enter(inode, dir, dentry);
 	d_drop(dentry);
+	if (S_ISREG(inode->i_mode))
+		nfs_sync_inode(inode);
 	error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
 	if (error == 0) {
 		ihold(inode);
-- 
GitLab


From 7a32824f7a9c8e2571b2ff74493516fb894d8d06 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Wed, 15 Dec 2021 16:38:16 -0500
Subject: [PATCH 3515/4878] NFS: Ensure the server has an up to date ctime
 before renaming

[ Upstream commit 6ff9d99bb88faebf134ca668842349d9718e5464 ]

Renaming a file is required by POSIX to update the file ctime, so
ensure that the file data is synced to disk so that we don't clobber the
updated ctime by writing back after creating the hard link.

Fixes: f2c2c552f119 ("NFS: Move delegation recall into the NFSv4 callback for rename_setup()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/dir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index d98386f398abe..a23b7a5dec9ee 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2282,6 +2282,8 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		}
 	}
 
+	if (S_ISREG(old_inode->i_mode))
+		nfs_sync_inode(old_inode);
 	task = nfs_async_rename(old_dir, new_dir, old_dentry, new_dentry, NULL);
 	if (IS_ERR(task)) {
 		error = PTR_ERR(task);
-- 
GitLab


From 129c71829d7f46423d95c19e8d87ce956d4c6e1c Mon Sep 17 00:00:00 2001
From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Date: Thu, 6 Jan 2022 17:15:12 +0530
Subject: [PATCH 3516/4878] powerpc64/bpf: Limit 'ldbrx' to processors
 compliant with ISA v2.06

[ Upstream commit 3f5f766d5f7f95a69a630da3544a1a0cee1cdddf ]

Johan reported the below crash with test_bpf on ppc64 e5500:

  test_bpf: #296 ALU_END_FROM_LE 64: 0x0123456789abcdef -> 0x67452301 jited:1
  Oops: Exception in kernel mode, sig: 4 [#1]
  BE PAGE_SIZE=4K SMP NR_CPUS=24 QEMU e500
  Modules linked in: test_bpf(+)
  CPU: 0 PID: 76 Comm: insmod Not tainted 5.14.0-03771-g98c2059e008a-dirty #1
  NIP:  8000000000061c3c LR: 80000000006dea64 CTR: 8000000000061c18
  REGS: c0000000032d3420 TRAP: 0700   Not tainted (5.14.0-03771-g98c2059e008a-dirty)
  MSR:  0000000080089000 <EE,ME>  CR: 88002822  XER: 20000000 IRQMASK: 0
  <...>
  NIP [8000000000061c3c] 0x8000000000061c3c
  LR [80000000006dea64] .__run_one+0x104/0x17c [test_bpf]
  Call Trace:
   .__run_one+0x60/0x17c [test_bpf] (unreliable)
   .test_bpf_init+0x6a8/0xdc8 [test_bpf]
   .do_one_initcall+0x6c/0x28c
   .do_init_module+0x68/0x28c
   .load_module+0x2460/0x2abc
   .__do_sys_init_module+0x120/0x18c
   .system_call_exception+0x110/0x1b8
   system_call_common+0xf0/0x210
  --- interrupt: c00 at 0x101d0acc
  <...>
  ---[ end trace 47b2bf19090bb3d0 ]---

  Illegal instruction

The illegal instruction turned out to be 'ldbrx' emitted for
BPF_FROM_[L|B]E, which was only introduced in ISA v2.06. Guard use of
the same and implement an alternative approach for older processors.

Fixes: 156d0e290e969c ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Reported-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Tested-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Acked-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d1e51c6fdf572062cf3009a751c3406bda01b832.1641468127.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/ppc-opcode.h |  1 +
 arch/powerpc/net/bpf_jit_comp64.c     | 22 +++++++++++++---------
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index a6e3700c4566a..f0c0816f57270 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -449,6 +449,7 @@
 #define PPC_RAW_LDX(r, base, b)		(0x7c00002a | ___PPC_RT(r) | ___PPC_RA(base) | ___PPC_RB(b))
 #define PPC_RAW_LHZ(r, base, i)		(0xa0000000 | ___PPC_RT(r) | ___PPC_RA(base) | IMM_L(i))
 #define PPC_RAW_LHBRX(r, base, b)	(0x7c00062c | ___PPC_RT(r) | ___PPC_RA(base) | ___PPC_RB(b))
+#define PPC_RAW_LWBRX(r, base, b)	(0x7c00042c | ___PPC_RT(r) | ___PPC_RA(base) | ___PPC_RB(b))
 #define PPC_RAW_LDBRX(r, base, b)	(0x7c000428 | ___PPC_RT(r) | ___PPC_RA(base) | ___PPC_RB(b))
 #define PPC_RAW_STWCX(s, a, b)		(0x7c00012d | ___PPC_RS(s) | ___PPC_RA(a) | ___PPC_RB(b))
 #define PPC_RAW_CMPWI(a, i)		(0x2c000000 | ___PPC_RA(a) | IMM_L(i))
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 8936090acb579..0d47514e8870d 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -651,17 +651,21 @@ bpf_alu32_trunc:
 				EMIT(PPC_RAW_MR(dst_reg, b2p[TMP_REG_1]));
 				break;
 			case 64:
-				/*
-				 * Way easier and faster(?) to store the value
-				 * into stack and then use ldbrx
-				 *
-				 * ctx->seen will be reliable in pass2, but
-				 * the instructions generated will remain the
-				 * same across all passes
-				 */
+				/* Store the value to stack and then use byte-reverse loads */
 				PPC_BPF_STL(dst_reg, 1, bpf_jit_stack_local(ctx));
 				EMIT(PPC_RAW_ADDI(b2p[TMP_REG_1], 1, bpf_jit_stack_local(ctx)));
-				EMIT(PPC_RAW_LDBRX(dst_reg, 0, b2p[TMP_REG_1]));
+				if (cpu_has_feature(CPU_FTR_ARCH_206)) {
+					EMIT(PPC_RAW_LDBRX(dst_reg, 0, b2p[TMP_REG_1]));
+				} else {
+					EMIT(PPC_RAW_LWBRX(dst_reg, 0, b2p[TMP_REG_1]));
+					if (IS_ENABLED(CONFIG_CPU_LITTLE_ENDIAN))
+						EMIT(PPC_RAW_SLDI(dst_reg, dst_reg, 32));
+					EMIT(PPC_RAW_LI(b2p[TMP_REG_2], 4));
+					EMIT(PPC_RAW_LWBRX(b2p[TMP_REG_2], b2p[TMP_REG_2], b2p[TMP_REG_1]));
+					if (IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
+						EMIT(PPC_RAW_SLDI(b2p[TMP_REG_2], b2p[TMP_REG_2], 32));
+					EMIT(PPC_RAW_OR(dst_reg, dst_reg, b2p[TMP_REG_2]));
+				}
 				break;
 			}
 			break;
-- 
GitLab


From 1af995c98b81cca2b414c05db07e70f1a32f4341 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Thu, 13 Jan 2022 21:37:58 +0100
Subject: [PATCH 3517/4878] netfilter: conntrack: don't increment invalid
 counter on NF_REPEAT

[ Upstream commit 830af2eba40327abec64325a5b08b1e85c37a2e0 ]

The packet isn't invalid, REPEAT means we're trying again after cleaning
out a stale connection, e.g. via tcp tracker.

This caused increases of invalid stat counter in a test case involving
frequent connection reuse, even though no packet is actually invalid.

Fixes: 56a62e2218f5 ("netfilter: conntrack: fix NF_REPEAT handling")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_conntrack_core.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index f4cf26b606f92..8369af0c50eab 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1832,15 +1832,17 @@ repeat:
 		pr_debug("nf_conntrack_in: Can't track with proto module\n");
 		nf_conntrack_put(&ct->ct_general);
 		skb->_nfct = 0;
-		NF_CT_STAT_INC_ATOMIC(state->net, invalid);
-		if (ret == -NF_DROP)
-			NF_CT_STAT_INC_ATOMIC(state->net, drop);
 		/* Special case: TCP tracker reports an attempt to reopen a
 		 * closed/aborted connection. We have to go back and create a
 		 * fresh conntrack.
 		 */
 		if (ret == -NF_REPEAT)
 			goto repeat;
+
+		NF_CT_STAT_INC_ATOMIC(state->net, invalid);
+		if (ret == -NF_DROP)
+			NF_CT_STAT_INC_ATOMIC(state->net, drop);
+
 		ret = -ret;
 		goto out;
 	}
-- 
GitLab


From cffed7e631b565310029cd5c69b8a2394adc72b3 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Thu, 25 Feb 2021 17:21:10 -0800
Subject: [PATCH 3518/4878] kernel: delete repeated words in comments

[ Upstream commit c034f48e99907d5be147ac8f0f3e630a9307c2be ]

Drop repeated words in kernel/events/.
{if, the, that, with, time}

Drop repeated words in kernel/locking/.
{it, no, the}

Drop repeated words in kernel/sched/.
{in, not}

Link: https://lkml.kernel.org/r/20210127023412.26292-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Will Deacon <will@kernel.org>	[kernel/locking/]
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/events/core.c       | 8 ++++----
 kernel/events/uprobes.c    | 2 +-
 kernel/locking/rtmutex.c   | 4 ++--
 kernel/locking/rwsem.c     | 2 +-
 kernel/locking/semaphore.c | 2 +-
 kernel/sched/fair.c        | 2 +-
 kernel/sched/membarrier.c  | 2 +-
 7 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index e2d774cc470ee..8dc7c4d12b789 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -266,7 +266,7 @@ static void event_function_call(struct perf_event *event, event_f func, void *da
 	if (!event->parent) {
 		/*
 		 * If this is a !child event, we must hold ctx::mutex to
-		 * stabilize the the event->ctx relation. See
+		 * stabilize the event->ctx relation. See
 		 * perf_event_ctx_lock().
 		 */
 		lockdep_assert_held(&ctx->mutex);
@@ -1300,7 +1300,7 @@ static void put_ctx(struct perf_event_context *ctx)
  * life-time rules separate them. That is an exiting task cannot fork, and a
  * spawning task cannot (yet) exit.
  *
- * But remember that that these are parent<->child context relations, and
+ * But remember that these are parent<->child context relations, and
  * migration does not affect children, therefore these two orderings should not
  * interact.
  *
@@ -1439,7 +1439,7 @@ static u64 primary_event_id(struct perf_event *event)
 /*
  * Get the perf_event_context for a task and lock it.
  *
- * This has to cope with with the fact that until it is locked,
+ * This has to cope with the fact that until it is locked,
  * the context could get moved to another task.
  */
 static struct perf_event_context *
@@ -2492,7 +2492,7 @@ static void perf_set_shadow_time(struct perf_event *event,
 	 * But this is a bit hairy.
 	 *
 	 * So instead, we have an explicit cgroup call to remain
-	 * within the time time source all along. We believe it
+	 * within the time source all along. We believe it
 	 * is cleaner and simpler to understand.
 	 */
 	if (is_cgroup_event(event))
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 00b0358739ab3..e1bbb3b92921d 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1735,7 +1735,7 @@ void uprobe_free_utask(struct task_struct *t)
 }
 
 /*
- * Allocate a uprobe_task object for the task if if necessary.
+ * Allocate a uprobe_task object for the task if necessary.
  * Called when the thread hits a breakpoint.
  *
  * Returns:
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 2f8cd616d3b29..f00dd928fc711 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1438,7 +1438,7 @@ rt_mutex_fasttrylock(struct rt_mutex *lock,
 }
 
 /*
- * Performs the wakeup of the the top-waiter and re-enables preemption.
+ * Performs the wakeup of the top-waiter and re-enables preemption.
  */
 void rt_mutex_postunlock(struct wake_q_head *wake_q)
 {
@@ -1832,7 +1832,7 @@ struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock)
  *			been started.
  * @waiter:		the pre-initialized rt_mutex_waiter
  *
- * Wait for the the lock acquisition started on our behalf by
+ * Wait for the lock acquisition started on our behalf by
  * rt_mutex_start_proxy_lock(). Upon failure, the caller must call
  * rt_mutex_cleanup_proxy_lock().
  *
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index a163542d178ee..cc5cc889b5b7f 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -1177,7 +1177,7 @@ rwsem_down_write_slowpath(struct rw_semaphore *sem, int state)
 
 		/*
 		 * If there were already threads queued before us and:
-		 *  1) there are no no active locks, wake the front
+		 *  1) there are no active locks, wake the front
 		 *     queued process(es) as the handoff bit might be set.
 		 *  2) there are no active writers and some readers, the lock
 		 *     must be read owned; so we try to wake any read lock
diff --git a/kernel/locking/semaphore.c b/kernel/locking/semaphore.c
index d9dd94defc0a9..9aa855a96c4ae 100644
--- a/kernel/locking/semaphore.c
+++ b/kernel/locking/semaphore.c
@@ -119,7 +119,7 @@ EXPORT_SYMBOL(down_killable);
  * @sem: the semaphore to be acquired
  *
  * Try to acquire the semaphore atomically.  Returns 0 if the semaphore has
- * been acquired successfully or 1 if it it cannot be acquired.
+ * been acquired successfully or 1 if it cannot be acquired.
  *
  * NOTE: This return value is inverted from both spin_trylock and
  * mutex_trylock!  Be careful about this when converting code.
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2a33cb5a10e59..8d2f238fdd2ac 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5149,7 +5149,7 @@ static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b)
 /*
  * When a group wakes up we want to make sure that its quota is not already
  * expired/exceeded, otherwise it may be allowed to steal additional ticks of
- * runtime as update_curr() throttling can not not trigger until it's on-rq.
+ * runtime as update_curr() throttling can not trigger until it's on-rq.
  */
 static void check_enqueue_throttle(struct cfs_rq *cfs_rq)
 {
diff --git a/kernel/sched/membarrier.c b/kernel/sched/membarrier.c
index 4d4dd349c05be..cc7cd512e4e33 100644
--- a/kernel/sched/membarrier.c
+++ b/kernel/sched/membarrier.c
@@ -316,7 +316,7 @@ static int sync_runqueues_membarrier_state(struct mm_struct *mm)
 
 	/*
 	 * For each cpu runqueue, if the task's mm match @mm, ensure that all
-	 * @mm's membarrier state set bits are also set in in the runqueue's
+	 * @mm's membarrier state set bits are also set in the runqueue's
 	 * membarrier state. This ensures that a runqueue scheduling
 	 * between threads which are users of @mm has its membarrier state
 	 * updated.
-- 
GitLab


From 91b04e83c71057927380d7597efe1e93e0bf3462 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 20 Dec 2021 13:19:52 +0100
Subject: [PATCH 3519/4878] perf: Fix perf_event_read_local() time

[ Upstream commit 09f5e7dc7ad705289e1b1ec065439aa3c42951c4 ]

Time readers that cannot take locks (due to NMI etc..) currently make
use of perf_event::shadow_ctx_time, which, for that event gives:

  time' = now + (time - timestamp)

or, alternatively arranged:

  time' = time + (now - timestamp)

IOW, the progression of time since the last time the shadow_ctx_time
was updated.

There's problems with this:

 A) the shadow_ctx_time is per-event, even though the ctx_time it
    reflects is obviously per context. The direct concequence of this
    is that the context needs to iterate all events all the time to
    keep the shadow_ctx_time in sync.

 B) even with the prior point, the context itself might not be active
    meaning its time should not advance to begin with.

 C) shadow_ctx_time isn't consistently updated when ctx_time is

There are 3 users of this stuff, that suffer differently from this:

 - calc_timer_values()
   - perf_output_read()
   - perf_event_update_userpage()	/* A */

 - perf_event_read_local()		/* A,B */

In particular, perf_output_read() doesn't suffer at all, because it's
sample driven and hence only relevant when the event is actually
running.

This same was supposed to be true for perf_event_update_userpage(),
after all self-monitoring implies the context is active *HOWEVER*, as
per commit f79256532682 ("perf/core: fix userpage->time_enabled of
inactive events") this goes wrong when combined with counter
overcommit, in that case those events that do not get scheduled when
the context becomes active (task events typically) miss out on the
EVENT_TIME update and ENABLED time is inflated (for a little while)
with the time the context was inactive. Once the event gets rotated
in, this gets corrected, leading to a non-monotonic timeflow.

perf_event_read_local() made things even worse, it can request time at
any point, suffering all the problems perf_event_update_userpage()
does and more. Because while perf_event_update_userpage() is limited
by the context being active, perf_event_read_local() users have no
such constraint.

Therefore, completely overhaul things and do away with
perf_event::shadow_ctx_time. Instead have regular context time updates
keep track of this offset directly and provide perf_event_time_now()
to complement perf_event_time().

perf_event_time_now() will, in adition to being context wide, also
take into account if the context is active. For inactive context, it
will not advance time.

This latter property means the cgroup perf_cgroup_info context needs
to grow addition state to track this.

Additionally, since all this is strictly per-cpu, we can use barrier()
to order context activity vs context time.

Fixes: 7d9285e82db5 ("perf/bpf: Extend the perf_event_read_local() interface, a.k.a. "bpf: perf event change needed for subsequent bpf helpers"")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Song Liu <song@kernel.org>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/r/YcB06DasOBtU0b00@hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/perf_event.h |  15 +--
 kernel/events/core.c       | 246 ++++++++++++++++++++++---------------
 2 files changed, 149 insertions(+), 112 deletions(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c94551091dad3..67a50c78232fe 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -678,18 +678,6 @@ struct perf_event {
 	u64				total_time_running;
 	u64				tstamp;
 
-	/*
-	 * timestamp shadows the actual context timing but it can
-	 * be safely used in NMI interrupt context. It reflects the
-	 * context time as it was when the event was last scheduled in,
-	 * or when ctx_sched_in failed to schedule the event because we
-	 * run out of PMC.
-	 *
-	 * ctx_time already accounts for ctx->timestamp. Therefore to
-	 * compute ctx_time for a sample, simply add perf_clock().
-	 */
-	u64				shadow_ctx_time;
-
 	struct perf_event_attr		attr;
 	u16				header_size;
 	u16				id_header_size;
@@ -834,6 +822,7 @@ struct perf_event_context {
 	 */
 	u64				time;
 	u64				timestamp;
+	u64				timeoffset;
 
 	/*
 	 * These fields let us detect when two contexts have both
@@ -916,6 +905,8 @@ struct bpf_perf_event_data_kern {
 struct perf_cgroup_info {
 	u64				time;
 	u64				timestamp;
+	u64				timeoffset;
+	int				active;
 };
 
 struct perf_cgroup {
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 8dc7c4d12b789..c6493f7e02359 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -673,6 +673,23 @@ perf_event_set_state(struct perf_event *event, enum perf_event_state state)
 	WRITE_ONCE(event->state, state);
 }
 
+/*
+ * UP store-release, load-acquire
+ */
+
+#define __store_release(ptr, val)					\
+do {									\
+	barrier();							\
+	WRITE_ONCE(*(ptr), (val));					\
+} while (0)
+
+#define __load_acquire(ptr)						\
+({									\
+	__unqual_scalar_typeof(*(ptr)) ___p = READ_ONCE(*(ptr));	\
+	barrier();							\
+	___p;								\
+})
+
 #ifdef CONFIG_CGROUP_PERF
 
 static inline bool
@@ -718,34 +735,51 @@ static inline u64 perf_cgroup_event_time(struct perf_event *event)
 	return t->time;
 }
 
-static inline void __update_cgrp_time(struct perf_cgroup *cgrp)
+static inline u64 perf_cgroup_event_time_now(struct perf_event *event, u64 now)
 {
-	struct perf_cgroup_info *info;
-	u64 now;
-
-	now = perf_clock();
+	struct perf_cgroup_info *t;
 
-	info = this_cpu_ptr(cgrp->info);
+	t = per_cpu_ptr(event->cgrp->info, event->cpu);
+	if (!__load_acquire(&t->active))
+		return t->time;
+	now += READ_ONCE(t->timeoffset);
+	return now;
+}
 
-	info->time += now - info->timestamp;
+static inline void __update_cgrp_time(struct perf_cgroup_info *info, u64 now, bool adv)
+{
+	if (adv)
+		info->time += now - info->timestamp;
 	info->timestamp = now;
+	/*
+	 * see update_context_time()
+	 */
+	WRITE_ONCE(info->timeoffset, info->time - info->timestamp);
 }
 
-static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx)
+static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx, bool final)
 {
 	struct perf_cgroup *cgrp = cpuctx->cgrp;
 	struct cgroup_subsys_state *css;
+	struct perf_cgroup_info *info;
 
 	if (cgrp) {
+		u64 now = perf_clock();
+
 		for (css = &cgrp->css; css; css = css->parent) {
 			cgrp = container_of(css, struct perf_cgroup, css);
-			__update_cgrp_time(cgrp);
+			info = this_cpu_ptr(cgrp->info);
+
+			__update_cgrp_time(info, now, true);
+			if (final)
+				__store_release(&info->active, 0);
 		}
 	}
 }
 
 static inline void update_cgrp_time_from_event(struct perf_event *event)
 {
+	struct perf_cgroup_info *info;
 	struct perf_cgroup *cgrp;
 
 	/*
@@ -759,8 +793,10 @@ static inline void update_cgrp_time_from_event(struct perf_event *event)
 	/*
 	 * Do not update time when cgroup is not active
 	 */
-	if (cgroup_is_descendant(cgrp->css.cgroup, event->cgrp->css.cgroup))
-		__update_cgrp_time(event->cgrp);
+	if (cgroup_is_descendant(cgrp->css.cgroup, event->cgrp->css.cgroup)) {
+		info = this_cpu_ptr(event->cgrp->info);
+		__update_cgrp_time(info, perf_clock(), true);
+	}
 }
 
 static inline void
@@ -784,7 +820,8 @@ perf_cgroup_set_timestamp(struct task_struct *task,
 	for (css = &cgrp->css; css; css = css->parent) {
 		cgrp = container_of(css, struct perf_cgroup, css);
 		info = this_cpu_ptr(cgrp->info);
-		info->timestamp = ctx->timestamp;
+		__update_cgrp_time(info, ctx->timestamp, false);
+		__store_release(&info->active, 1);
 	}
 }
 
@@ -980,14 +1017,6 @@ out:
 	return ret;
 }
 
-static inline void
-perf_cgroup_set_shadow_time(struct perf_event *event, u64 now)
-{
-	struct perf_cgroup_info *t;
-	t = per_cpu_ptr(event->cgrp->info, event->cpu);
-	event->shadow_ctx_time = now - t->timestamp;
-}
-
 static inline void
 perf_cgroup_event_enable(struct perf_event *event, struct perf_event_context *ctx)
 {
@@ -1065,7 +1094,8 @@ static inline void update_cgrp_time_from_event(struct perf_event *event)
 {
 }
 
-static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx)
+static inline void update_cgrp_time_from_cpuctx(struct perf_cpu_context *cpuctx,
+						bool final)
 {
 }
 
@@ -1097,12 +1127,12 @@ perf_cgroup_switch(struct task_struct *task, struct task_struct *next)
 {
 }
 
-static inline void
-perf_cgroup_set_shadow_time(struct perf_event *event, u64 now)
+static inline u64 perf_cgroup_event_time(struct perf_event *event)
 {
+	return 0;
 }
 
-static inline u64 perf_cgroup_event_time(struct perf_event *event)
+static inline u64 perf_cgroup_event_time_now(struct perf_event *event, u64 now)
 {
 	return 0;
 }
@@ -1524,22 +1554,59 @@ static void perf_unpin_context(struct perf_event_context *ctx)
 /*
  * Update the record of the current time in a context.
  */
-static void update_context_time(struct perf_event_context *ctx)
+static void __update_context_time(struct perf_event_context *ctx, bool adv)
 {
 	u64 now = perf_clock();
 
-	ctx->time += now - ctx->timestamp;
+	if (adv)
+		ctx->time += now - ctx->timestamp;
 	ctx->timestamp = now;
+
+	/*
+	 * The above: time' = time + (now - timestamp), can be re-arranged
+	 * into: time` = now + (time - timestamp), which gives a single value
+	 * offset to compute future time without locks on.
+	 *
+	 * See perf_event_time_now(), which can be used from NMI context where
+	 * it's (obviously) not possible to acquire ctx->lock in order to read
+	 * both the above values in a consistent manner.
+	 */
+	WRITE_ONCE(ctx->timeoffset, ctx->time - ctx->timestamp);
+}
+
+static void update_context_time(struct perf_event_context *ctx)
+{
+	__update_context_time(ctx, true);
 }
 
 static u64 perf_event_time(struct perf_event *event)
 {
 	struct perf_event_context *ctx = event->ctx;
 
+	if (unlikely(!ctx))
+		return 0;
+
 	if (is_cgroup_event(event))
 		return perf_cgroup_event_time(event);
 
-	return ctx ? ctx->time : 0;
+	return ctx->time;
+}
+
+static u64 perf_event_time_now(struct perf_event *event, u64 now)
+{
+	struct perf_event_context *ctx = event->ctx;
+
+	if (unlikely(!ctx))
+		return 0;
+
+	if (is_cgroup_event(event))
+		return perf_cgroup_event_time_now(event, now);
+
+	if (!(__load_acquire(&ctx->is_active) & EVENT_TIME))
+		return ctx->time;
+
+	now += READ_ONCE(ctx->timeoffset);
+	return now;
 }
 
 static enum event_type_t get_event_type(struct perf_event *event)
@@ -2333,7 +2400,7 @@ __perf_remove_from_context(struct perf_event *event,
 
 	if (ctx->is_active & EVENT_TIME) {
 		update_context_time(ctx);
-		update_cgrp_time_from_cpuctx(cpuctx);
+		update_cgrp_time_from_cpuctx(cpuctx, false);
 	}
 
 	event_sched_out(event, cpuctx, ctx);
@@ -2342,6 +2409,9 @@ __perf_remove_from_context(struct perf_event *event,
 	list_del_event(event, ctx);
 
 	if (!ctx->nr_events && ctx->is_active) {
+		if (ctx == &cpuctx->ctx)
+			update_cgrp_time_from_cpuctx(cpuctx, true);
+
 		ctx->is_active = 0;
 		ctx->rotate_necessary = 0;
 		if (ctx->task) {
@@ -2467,40 +2537,6 @@ void perf_event_disable_inatomic(struct perf_event *event)
 	irq_work_queue(&event->pending);
 }
 
-static void perf_set_shadow_time(struct perf_event *event,
-				 struct perf_event_context *ctx)
-{
-	/*
-	 * use the correct time source for the time snapshot
-	 *
-	 * We could get by without this by leveraging the
-	 * fact that to get to this function, the caller
-	 * has most likely already called update_context_time()
-	 * and update_cgrp_time_xx() and thus both timestamp
-	 * are identical (or very close). Given that tstamp is,
-	 * already adjusted for cgroup, we could say that:
-	 *    tstamp - ctx->timestamp
-	 * is equivalent to
-	 *    tstamp - cgrp->timestamp.
-	 *
-	 * Then, in perf_output_read(), the calculation would
-	 * work with no changes because:
-	 * - event is guaranteed scheduled in
-	 * - no scheduled out in between
-	 * - thus the timestamp would be the same
-	 *
-	 * But this is a bit hairy.
-	 *
-	 * So instead, we have an explicit cgroup call to remain
-	 * within the time source all along. We believe it
-	 * is cleaner and simpler to understand.
-	 */
-	if (is_cgroup_event(event))
-		perf_cgroup_set_shadow_time(event, event->tstamp);
-	else
-		event->shadow_ctx_time = event->tstamp - ctx->timestamp;
-}
-
 #define MAX_INTERRUPTS (~0ULL)
 
 static void perf_log_throttle(struct perf_event *event, int enable);
@@ -2541,8 +2577,6 @@ event_sched_in(struct perf_event *event,
 
 	perf_pmu_disable(event->pmu);
 
-	perf_set_shadow_time(event, ctx);
-
 	perf_log_itrace_start(event);
 
 	if (event->pmu->add(event, PERF_EF_START)) {
@@ -3216,16 +3250,6 @@ static void ctx_sched_out(struct perf_event_context *ctx,
 		return;
 	}
 
-	ctx->is_active &= ~event_type;
-	if (!(ctx->is_active & EVENT_ALL))
-		ctx->is_active = 0;
-
-	if (ctx->task) {
-		WARN_ON_ONCE(cpuctx->task_ctx != ctx);
-		if (!ctx->is_active)
-			cpuctx->task_ctx = NULL;
-	}
-
 	/*
 	 * Always update time if it was set; not only when it changes.
 	 * Otherwise we can 'forget' to update time for any but the last
@@ -3239,7 +3263,22 @@ static void ctx_sched_out(struct perf_event_context *ctx,
 	if (is_active & EVENT_TIME) {
 		/* update (and stop) ctx time */
 		update_context_time(ctx);
-		update_cgrp_time_from_cpuctx(cpuctx);
+		update_cgrp_time_from_cpuctx(cpuctx, ctx == &cpuctx->ctx);
+		/*
+		 * CPU-release for the below ->is_active store,
+		 * see __load_acquire() in perf_event_time_now()
+		 */
+		barrier();
+	}
+
+	ctx->is_active &= ~event_type;
+	if (!(ctx->is_active & EVENT_ALL))
+		ctx->is_active = 0;
+
+	if (ctx->task) {
+		WARN_ON_ONCE(cpuctx->task_ctx != ctx);
+		if (!ctx->is_active)
+			cpuctx->task_ctx = NULL;
 	}
 
 	is_active ^= ctx->is_active; /* changed bits */
@@ -3676,13 +3715,19 @@ static noinline int visit_groups_merge(struct perf_cpu_context *cpuctx,
 	return 0;
 }
 
+/*
+ * Because the userpage is strictly per-event (there is no concept of context,
+ * so there cannot be a context indirection), every userpage must be updated
+ * when context time starts :-(
+ *
+ * IOW, we must not miss EVENT_TIME edges.
+ */
 static inline bool event_update_userpage(struct perf_event *event)
 {
 	if (likely(!atomic_read(&event->mmap_count)))
 		return false;
 
 	perf_event_update_time(event);
-	perf_set_shadow_time(event, event->ctx);
 	perf_event_update_userpage(event);
 
 	return true;
@@ -3766,13 +3811,23 @@ ctx_sched_in(struct perf_event_context *ctx,
 	     struct task_struct *task)
 {
 	int is_active = ctx->is_active;
-	u64 now;
 
 	lockdep_assert_held(&ctx->lock);
 
 	if (likely(!ctx->nr_events))
 		return;
 
+	if (is_active ^ EVENT_TIME) {
+		/* start ctx time */
+		__update_context_time(ctx, false);
+		perf_cgroup_set_timestamp(task, ctx);
+		/*
+		 * CPU-release for the below ->is_active store,
+		 * see __load_acquire() in perf_event_time_now()
+		 */
+		barrier();
+	}
+
 	ctx->is_active |= (event_type | EVENT_TIME);
 	if (ctx->task) {
 		if (!is_active)
@@ -3783,13 +3838,6 @@ ctx_sched_in(struct perf_event_context *ctx,
 
 	is_active ^= ctx->is_active; /* changed bits */
 
-	if (is_active & EVENT_TIME) {
-		/* start ctx time */
-		now = perf_clock();
-		ctx->timestamp = now;
-		perf_cgroup_set_timestamp(task, ctx);
-	}
-
 	/*
 	 * First go through the list and put on any pinned groups
 	 * in order to give them the best chance of going on.
@@ -4325,6 +4373,18 @@ static inline u64 perf_event_count(struct perf_event *event)
 	return local64_read(&event->count) + atomic64_read(&event->child_count);
 }
 
+static void calc_timer_values(struct perf_event *event,
+				u64 *now,
+				u64 *enabled,
+				u64 *running)
+{
+	u64 ctx_time;
+
+	*now = perf_clock();
+	ctx_time = perf_event_time_now(event, *now);
+	__perf_update_times(event, ctx_time, enabled, running);
+}
+
 /*
  * NMI-safe method to read a local event, that is an event that
  * is:
@@ -4384,10 +4444,9 @@ int perf_event_read_local(struct perf_event *event, u64 *value,
 
 	*value = local64_read(&event->count);
 	if (enabled || running) {
-		u64 now = event->shadow_ctx_time + perf_clock();
-		u64 __enabled, __running;
+		u64 __enabled, __running, __now;;
 
-		__perf_update_times(event, now, &__enabled, &__running);
+		calc_timer_values(event, &__now, &__enabled, &__running);
 		if (enabled)
 			*enabled = __enabled;
 		if (running)
@@ -5694,18 +5753,6 @@ static int perf_event_index(struct perf_event *event)
 	return event->pmu->event_idx(event);
 }
 
-static void calc_timer_values(struct perf_event *event,
-				u64 *now,
-				u64 *enabled,
-				u64 *running)
-{
-	u64 ctx_time;
-
-	*now = perf_clock();
-	ctx_time = event->shadow_ctx_time + *now;
-	__perf_update_times(event, ctx_time, enabled, running);
-}
-
 static void perf_event_init_userpage(struct perf_event *event)
 {
 	struct perf_event_mmap_page *userpg;
@@ -6245,7 +6292,6 @@ accounting:
 		ring_buffer_attach(event, rb);
 
 		perf_event_update_time(event);
-		perf_set_shadow_time(event, event->ctx);
 		perf_event_init_userpage(event);
 		perf_event_update_userpage(event);
 	} else {
-- 
GitLab


From 57b2f3632b2f33677568b86f2679693c44f324cc Mon Sep 17 00:00:00 2001
From: Vincent Guittot <vincent.guittot@linaro.org>
Date: Tue, 11 Jan 2022 14:46:56 +0100
Subject: [PATCH 3520/4878] sched/pelt: Relax the sync of util_sum with
 util_avg

[ Upstream commit 98b0d890220d45418cfbc5157b3382e6da5a12ab ]

Rick reported performance regressions in bugzilla because of cpu frequency
being lower than before:
    https://bugzilla.kernel.org/show_bug.cgi?id=215045

He bisected the problem to:
commit 1c35b07e6d39 ("sched/fair: Ensure _sum and _avg values stay consistent")

This commit forces util_sum to be synced with the new util_avg after
removing the contribution of a task and before the next periodic sync. By
doing so util_sum is rounded to its lower bound and might lost up to
LOAD_AVG_MAX-1 of accumulated contribution which has not yet been
reflected in util_avg.

Instead of always setting util_sum to the low bound of util_avg, which can
significantly lower the utilization of root cfs_rq after propagating the
change down into the hierarchy, we revert the change of util_sum and
propagate the difference.

In addition, we also check that cfs's util_sum always stays above the
lower bound for a given util_avg as it has been observed that
sched_entity's util_sum is sometimes above cfs one.

Fixes: 1c35b07e6d39 ("sched/fair: Ensure _sum and _avg values stay consistent")
Reported-by: Rick Yiu <rickyiu@google.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Link: https://lkml.kernel.org/r/20220111134659.24961-2-vincent.guittot@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/fair.c | 16 +++++++++++++---
 kernel/sched/pelt.h |  4 +++-
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8d2f238fdd2ac..acd9833b8ec22 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3379,7 +3379,6 @@ void set_task_rq_fair(struct sched_entity *se,
 	se->avg.last_update_time = n_last_update_time;
 }
 
-
 /*
  * When on migration a sched_entity joins/leaves the PELT hierarchy, we need to
  * propagate its contribution. The key to this propagation is the invariant
@@ -3447,7 +3446,6 @@ void set_task_rq_fair(struct sched_entity *se,
  * XXX: only do this for the part of runnable > running ?
  *
  */
-
 static inline void
 update_tg_cfs_util(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq *gcfs_rq)
 {
@@ -3676,7 +3674,19 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 
 		r = removed_util;
 		sub_positive(&sa->util_avg, r);
-		sa->util_sum = sa->util_avg * divider;
+		sub_positive(&sa->util_sum, r * divider);
+		/*
+		 * Because of rounding, se->util_sum might ends up being +1 more than
+		 * cfs->util_sum. Although this is not a problem by itself, detaching
+		 * a lot of tasks with the rounding problem between 2 updates of
+		 * util_avg (~1ms) can make cfs->util_sum becoming null whereas
+		 * cfs_util_avg is not.
+		 * Check that util_sum is still above its lower bound for the new
+		 * util_avg. Given that period_contrib might have moved since the last
+		 * sync, we are only sure that util_sum must be above or equal to
+		 *    util_avg * minimum possible divider
+		 */
+		sa->util_sum = max_t(u32, sa->util_sum, sa->util_avg * PELT_MIN_DIVIDER);
 
 		r = removed_runnable;
 		sub_positive(&sa->runnable_avg, r);
diff --git a/kernel/sched/pelt.h b/kernel/sched/pelt.h
index 0b9aeebb9c325..45bf08e22207c 100644
--- a/kernel/sched/pelt.h
+++ b/kernel/sched/pelt.h
@@ -37,9 +37,11 @@ update_irq_load_avg(struct rq *rq, u64 running)
 }
 #endif
 
+#define PELT_MIN_DIVIDER	(LOAD_AVG_MAX - 1024)
+
 static inline u32 get_pelt_divider(struct sched_avg *avg)
 {
-	return LOAD_AVG_MAX - 1024 + avg->period_contrib;
+	return PELT_MIN_DIVIDER + avg->period_contrib;
 }
 
 static inline void cfs_se_util_change(struct sched_avg *avg)
-- 
GitLab


From a839a79f4d6b35ddf7d377633bd88078cfdec04f Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 18 Jan 2022 15:52:43 -0600
Subject: [PATCH 3521/4878] net: phy: broadcom: hook up soft_reset for
 BCM54616S

[ Upstream commit d15c7e875d44367005370e6a82e8f3a382a04f9b ]

A problem was encountered with the Bel-Fuse 1GBT-SFP05 SFP module (which
is a 1 Gbps copper module operating in SGMII mode with an internal
BCM54616S PHY device) using the Xilinx AXI Ethernet MAC core, where the
module would work properly on the initial insertion or boot of the
device, but after the device was rebooted, the link would either only
come up at 100 Mbps speeds or go up and down erratically.

I found no meaningful changes in the PHY configuration registers between
the working and non-working boots, but the status registers seemed to
have a lot of error indications set on the SERDES side of the device on
the non-working boot. I suspect the problem is that whatever happens on
the SGMII link when the device is rebooted and the FPGA logic gets
reloaded ends up putting the module's onboard PHY into a bad state.

Since commit 6e2d85ec0559 ("net: phy: Stop with excessive soft reset")
the genphy_soft_reset call is not made automatically by the PHY core
unless the callback is explicitly specified in the driver structure. For
most of these Broadcom devices, there is probably a hardware reset that
gets asserted to reset the PHY during boot, however for SFP modules
(where the BCM54616S is commonly found) no such reset line exists, so if
the board keeps the SFP cage powered up across a reboot, it will end up
with no reset occurring during reboots.

Hook up the genphy_soft_reset callback for BCM54616S to ensure that a
PHY reset is performed before the device is initialized. This appears to
fix the issue with erratic operation after a reboot with this SFP
module.

Fixes: 6e2d85ec0559 ("net: phy: Stop with excessive soft reset")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/broadcom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index dbed15dc0fe77..644861366d544 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -789,6 +789,7 @@ static struct phy_driver broadcom_drivers[] = {
 	.phy_id_mask	= 0xfffffff0,
 	.name		= "Broadcom BCM54616S",
 	/* PHY_GBIT_FEATURES */
+	.soft_reset     = genphy_soft_reset,
 	.config_init	= bcm54xx_config_init,
 	.config_aneg	= bcm54616s_config_aneg,
 	.ack_interrupt	= bcm_phy_ack_intr,
-- 
GitLab


From bd024e36f68174b1793906c39ca16cee0c9295c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
Date: Wed, 19 Jan 2022 17:27:48 +0100
Subject: [PATCH 3522/4878] phylib: fix potential use-after-free
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit cbda1b16687580d5beee38273f6241ae3725960c ]

Commit bafbdd527d56 ("phylib: Add device reset GPIO support") added call
to phy_device_reset(phydev) after the put_device() call in phy_detach().

The comment before the put_device() call says that the phydev might go
away with put_device().

Fix potential use-after-free by calling phy_device_reset() before
put_device().

Fixes: bafbdd527d56 ("phylib: Add device reset GPIO support")
Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220119162748.32418-1-kabel@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/phy_device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 85f3cde5ffd09..d2f6d8107595a 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1682,6 +1682,9 @@ void phy_detach(struct phy_device *phydev)
 	    phy_driver_is_genphy_10g(phydev))
 		device_release_driver(&phydev->mdio.dev);
 
+	/* Assert the reset signal */
+	phy_device_reset(phydev, 1);
+
 	/*
 	 * The phydev might go away on the put_device() below, so avoid
 	 * a use-after-free bug by reading the underlying bus first.
@@ -1693,9 +1696,6 @@ void phy_detach(struct phy_device *phydev)
 		ndev_owner = dev->dev.parent->driver->owner;
 	if (ndev_owner != bus->owner)
 		module_put(bus->owner);
-
-	/* Assert the reset signal */
-	phy_device_reset(phydev, 1);
 }
 EXPORT_SYMBOL(phy_detach);
 
-- 
GitLab


From 5067f5699de7ae7b162150b128628bbfdd993d3a Mon Sep 17 00:00:00 2001
From: Subbaraya Sundeep <sbhatta@marvell.com>
Date: Fri, 21 Jan 2022 12:04:46 +0530
Subject: [PATCH 3523/4878] octeontx2-pf: Forward error codes to VF

[ Upstream commit a8db854be28622a2477cb21cdf7f829adbb2c42d ]

PF forwards its VF messages to AF and corresponding
replies from AF to VF. AF sets proper error code in the
replies after processing message requests. Currently PF
checks the error codes in replies and sends invalid
message to VF. This way VF lacks the information of
error code set by AF for its messages. This patch
changes that such that PF simply forwards AF replies
so that VF can handle error codes.

Fixes: d424b6c02415 ("octeontx2-pf: Enable SRIOV and added VF mbox handling")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index 044a5b1196acb..161174be51c31 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -386,7 +386,12 @@ static int otx2_forward_vf_mbox_msgs(struct otx2_nic *pf,
 		dst_mdev->msg_size = mbox_hdr->msg_size;
 		dst_mdev->num_msgs = num_msgs;
 		err = otx2_sync_mbox_msg(dst_mbox);
-		if (err) {
+		/* Error code -EIO indicate there is a communication failure
+		 * to the AF. Rest of the error codes indicate that AF processed
+		 * VF messages and set the error codes in response messages
+		 * (if any) so simply forward responses to VF.
+		 */
+		if (err == -EIO) {
 			dev_warn(pf->dev,
 				 "AF not responding to VF%d messages\n", vf);
 			/* restore PF mbase and exit */
-- 
GitLab


From 3572205b194c75e6d4594cd0376cd5516e65fb94 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 21 Jan 2022 23:12:58 +0000
Subject: [PATCH 3524/4878] rxrpc: Adjust retransmission backoff

[ Upstream commit 2c13c05c5ff4b9fc907b07f7311821910ebaaf8a ]

Improve retransmission backoff by only backing off when we retransmit data
packets rather than when we set the lost ack timer.

To this end:

 (1) In rxrpc_resend(), use rxrpc_get_rto_backoff() when setting the
     retransmission timer and only tell it that we are retransmitting if we
     actually have things to retransmit.

     Note that it's possible for the retransmission algorithm to race with
     the processing of a received ACK, so we may see no packets needing
     retransmission.

 (2) In rxrpc_send_data_packet(), don't bump the backoff when setting the
     ack_lost_at timer, as it may then get bumped twice.

With this, when looking at one particular packet, the retransmission
intervals were seen to be 1.5ms, 2ms, 3ms, 5ms, 9ms, 17ms, 33ms, 71ms,
136ms, 264ms, 544ms, 1.088s, 2.1s, 4.2s and 8.3s.

Fixes: c410bf01933e ("rxrpc: Fix the excessive initial retransmission timeout")
Suggested-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/164138117069.2023386.17446904856843997127.stgit@warthog.procyon.org.uk/
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rxrpc/call_event.c | 8 +++-----
 net/rxrpc/output.c     | 2 +-
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/rxrpc/call_event.c b/net/rxrpc/call_event.c
index 6be2672a65eab..df864e6922679 100644
--- a/net/rxrpc/call_event.c
+++ b/net/rxrpc/call_event.c
@@ -157,7 +157,7 @@ static void rxrpc_congestion_timeout(struct rxrpc_call *call)
 static void rxrpc_resend(struct rxrpc_call *call, unsigned long now_j)
 {
 	struct sk_buff *skb;
-	unsigned long resend_at, rto_j;
+	unsigned long resend_at;
 	rxrpc_seq_t cursor, seq, top;
 	ktime_t now, max_age, oldest, ack_ts;
 	int ix;
@@ -165,10 +165,8 @@ static void rxrpc_resend(struct rxrpc_call *call, unsigned long now_j)
 
 	_enter("{%d,%d}", call->tx_hard_ack, call->tx_top);
 
-	rto_j = call->peer->rto_j;
-
 	now = ktime_get_real();
-	max_age = ktime_sub(now, jiffies_to_usecs(rto_j));
+	max_age = ktime_sub(now, jiffies_to_usecs(call->peer->rto_j));
 
 	spin_lock_bh(&call->lock);
 
@@ -213,7 +211,7 @@ static void rxrpc_resend(struct rxrpc_call *call, unsigned long now_j)
 	}
 
 	resend_at = nsecs_to_jiffies(ktime_to_ns(ktime_sub(now, oldest)));
-	resend_at += jiffies + rto_j;
+	resend_at += jiffies + rxrpc_get_rto_backoff(call->peer, retrans);
 	WRITE_ONCE(call->resend_at, resend_at);
 
 	if (unacked)
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 10f2bf2e9068a..a45c83f22236e 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -468,7 +468,7 @@ done:
 			if (call->peer->rtt_count > 1) {
 				unsigned long nowj = jiffies, ack_lost_at;
 
-				ack_lost_at = rxrpc_get_rto_backoff(call->peer, retrans);
+				ack_lost_at = rxrpc_get_rto_backoff(call->peer, false);
 				ack_lost_at += nowj;
 				WRITE_ONCE(call->ack_lost_at, ack_lost_at);
 				rxrpc_reduce_call_timer(call, ack_lost_at, nowj,
-- 
GitLab


From c534287a57dc32d89428f10a06650086a4290521 Mon Sep 17 00:00:00 2001
From: Mihai Carabas <mihai.carabas@oracle.com>
Date: Wed, 19 Jan 2022 18:14:27 +0200
Subject: [PATCH 3525/4878] efi/libstub: arm64: Fix image check alignment at
 entry

[ Upstream commit e9b7c3a4263bdcfd31bc3d03d48ce0ded7a94635 ]

The kernel is aligned at SEGMENT_SIZE and this is the size populated in the PE
headers:

arch/arm64/kernel/efi-header.S: .long   SEGMENT_ALIGN // SectionAlignment

EFI_KIMG_ALIGN is defined as: (SEGMENT_ALIGN > THREAD_ALIGN ? SEGMENT_ALIGN :
THREAD_ALIGN)

So it depends on THREAD_ALIGN. On newer builds this message started to appear
even though the loader is taking into account the PE header (which is stating
SEGMENT_ALIGN).

Fixes: c32ac11da3f8 ("efi/libstub: arm64: Double check image alignment at entry")
Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/efi/libstub/arm64-stub.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c
index c1b57dfb12776..415a971e76947 100644
--- a/drivers/firmware/efi/libstub/arm64-stub.c
+++ b/drivers/firmware/efi/libstub/arm64-stub.c
@@ -119,9 +119,9 @@ efi_status_t handle_kernel_image(unsigned long *image_addr,
 	if (image->image_base != _text)
 		efi_err("FIRMWARE BUG: efi_loaded_image_t::image_base has bogus value\n");
 
-	if (!IS_ALIGNED((u64)_text, EFI_KIMG_ALIGN))
-		efi_err("FIRMWARE BUG: kernel image not aligned on %ldk boundary\n",
-			EFI_KIMG_ALIGN >> 10);
+	if (!IS_ALIGNED((u64)_text, SEGMENT_ALIGN))
+		efi_err("FIRMWARE BUG: kernel image not aligned on %dk boundary\n",
+			SEGMENT_ALIGN >> 10);
 
 	kernel_size = _edata - _text;
 	kernel_memsize = kernel_size + (_end - _edata);
-- 
GitLab


From 0bdbf93ee253185c23436837af337d70d0d3767a Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 7 Jan 2022 11:05:23 -0800
Subject: [PATCH 3526/4878] hwmon: (lm90) Mark alert as broken for MAX6654

[ Upstream commit a53fff96f35763d132a36c620b183fdf11022d7a ]

Experiments with MAX6654 show that its alert function is broken,
similar to other chips supported by the lm90 driver. Mark it accordingly.

Fixes: 229d495d8189 ("hwmon: (lm90) Add max6654 support to lm90 driver")
Cc: Josh Lehan <krellan@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/lm90.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index ee9d49d4d8d07..a7142c32889c0 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -400,6 +400,7 @@ static const struct lm90_params lm90_params[] = {
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
 	[max6654] = {
+		.flags = LM90_HAVE_BROKEN_ALERT,
 		.alert_alarms = 0x7c,
 		.max_convrate = 7,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
-- 
GitLab


From 55402a4618721f350a9ab660bb42717d8aa18e7c Mon Sep 17 00:00:00 2001
From: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Date: Sat, 22 Jan 2022 09:04:29 +0530
Subject: [PATCH 3527/4878] powerpc/perf: Fix power_pmu_disable to call
 clear_pmi_irq_pending only if PMI is pending

[ Upstream commit fb6433b48a178d4672cb26632454ee0b21056eaa ]

Running selftest with CONFIG_PPC_IRQ_SOFT_MASK_DEBUG enabled in kernel
triggered below warning:

[  172.851380] ------------[ cut here ]------------
[  172.851391] WARNING: CPU: 8 PID: 2901 at arch/powerpc/include/asm/hw_irq.h:246 power_pmu_disable+0x270/0x280
[  172.851402] Modules linked in: dm_mod bonding nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables rfkill nfnetlink sunrpc xfs libcrc32c pseries_rng xts vmx_crypto uio_pdrv_genirq uio sch_fq_codel ip_tables ext4 mbcache jbd2 sd_mod t10_pi sg ibmvscsi ibmveth scsi_transport_srp fuse
[  172.851442] CPU: 8 PID: 2901 Comm: lost_exception_ Not tainted 5.16.0-rc5-03218-g798527287598 #2
[  172.851451] NIP:  c00000000013d600 LR: c00000000013d5a4 CTR: c00000000013b180
[  172.851458] REGS: c000000017687860 TRAP: 0700   Not tainted  (5.16.0-rc5-03218-g798527287598)
[  172.851465] MSR:  8000000000029033 <SF,EE,ME,IR,DR,RI,LE>  CR: 48004884  XER: 20040000
[  172.851482] CFAR: c00000000013d5b4 IRQMASK: 1
[  172.851482] GPR00: c00000000013d5a4 c000000017687b00 c000000002a10600 0000000000000004
[  172.851482] GPR04: 0000000082004000 c0000008ba08f0a8 0000000000000000 00000008b7ed0000
[  172.851482] GPR08: 00000000446194f6 0000000000008000 c00000000013b118 c000000000d58e68
[  172.851482] GPR12: c00000000013d390 c00000001ec54a80 0000000000000000 0000000000000000
[  172.851482] GPR16: 0000000000000000 0000000000000000 c000000015d5c708 c0000000025396d0
[  172.851482] GPR20: 0000000000000000 0000000000000000 c00000000a3bbf40 0000000000000003
[  172.851482] GPR24: 0000000000000000 c0000008ba097400 c0000000161e0d00 c00000000a3bb600
[  172.851482] GPR28: c000000015d5c700 0000000000000001 0000000082384090 c0000008ba0020d8
[  172.851549] NIP [c00000000013d600] power_pmu_disable+0x270/0x280
[  172.851557] LR [c00000000013d5a4] power_pmu_disable+0x214/0x280
[  172.851565] Call Trace:
[  172.851568] [c000000017687b00] [c00000000013d5a4] power_pmu_disable+0x214/0x280 (unreliable)
[  172.851579] [c000000017687b40] [c0000000003403ac] perf_pmu_disable+0x4c/0x60
[  172.851588] [c000000017687b60] [c0000000003445e4] __perf_event_task_sched_out+0x1d4/0x660
[  172.851596] [c000000017687c50] [c000000000d1175c] __schedule+0xbcc/0x12a0
[  172.851602] [c000000017687d60] [c000000000d11ea8] schedule+0x78/0x140
[  172.851608] [c000000017687d90] [c0000000001a8080] sys_sched_yield+0x20/0x40
[  172.851615] [c000000017687db0] [c0000000000334dc] system_call_exception+0x18c/0x380
[  172.851622] [c000000017687e10] [c00000000000c74c] system_call_common+0xec/0x268

The warning indicates that MSR_EE being set(interrupt enabled) when
there was an overflown PMC detected. This could happen in
power_pmu_disable since it runs under interrupt soft disable
condition ( local_irq_save ) and not with interrupts hard disabled.
commit 2c9ac51b850d ("powerpc/perf: Fix PMU callbacks to clear
pending PMI before resetting an overflown PMC") intended to clear
PMI pending bit in Paca when disabling the PMU. It could happen
that PMC gets overflown while code is in power_pmu_disable
callback function. Hence add a check to see if PMI pending bit
is set in Paca before clearing it via clear_pmi_pending.

Fixes: 2c9ac51b850d ("powerpc/perf: Fix PMU callbacks to clear pending PMI before resetting an overflown PMC")
Reported-by: Sachin Sant <sachinp@linux.ibm.com>
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220122033429.25395-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/perf/core-book3s.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index bd34e062bd290..e49aa8fc6a491 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -1273,9 +1273,20 @@ static void power_pmu_disable(struct pmu *pmu)
 		 * Otherwise provide a warning if there is PMI pending, but
 		 * no counter is found overflown.
 		 */
-		if (any_pmc_overflown(cpuhw))
-			clear_pmi_irq_pending();
-		else
+		if (any_pmc_overflown(cpuhw)) {
+			/*
+			 * Since power_pmu_disable runs under local_irq_save, it
+			 * could happen that code hits a PMC overflow without PMI
+			 * pending in paca. Hence only clear PMI pending if it was
+			 * set.
+			 *
+			 * If a PMI is pending, then MSR[EE] must be disabled (because
+			 * the masked PMI handler disabling EE). So it is safe to
+			 * call clear_pmi_irq_pending().
+			 */
+			if (pmi_irq_pending())
+				clear_pmi_irq_pending();
+		} else
 			WARN_ON(pmi_irq_pending());
 
 		val = mmcra = cpuhw->mmcr.mmcra;
-- 
GitLab


From 2f56c4845df93c509ea3a63588fd4251ef5c5c87 Mon Sep 17 00:00:00 2001
From: Yajun Deng <yajun.deng@linux.dev>
Date: Mon, 23 Aug 2021 11:17:59 +0800
Subject: [PATCH 3528/4878] net: ipv4: Move ip_options_fragment() out of loop

[ Upstream commit faf482ca196a5b16007190529b3b2dd32ab3f761 ]

The ip_options_fragment() only called when iter->offset is equal to zero,
so move it out of loop, and inline 'Copy the flags to each fragment.'
As also, remove the unused parameter in ip_frag_ipcb().

Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/ip_output.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 10d4cde31c6bf..fb91a466b2d34 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -614,18 +614,6 @@ void ip_fraglist_init(struct sk_buff *skb, struct iphdr *iph,
 }
 EXPORT_SYMBOL(ip_fraglist_init);
 
-static void ip_fraglist_ipcb_prepare(struct sk_buff *skb,
-				     struct ip_fraglist_iter *iter)
-{
-	struct sk_buff *to = iter->frag;
-
-	/* Copy the flags to each fragment. */
-	IPCB(to)->flags = IPCB(skb)->flags;
-
-	if (iter->offset == 0)
-		ip_options_fragment(to);
-}
-
 void ip_fraglist_prepare(struct sk_buff *skb, struct ip_fraglist_iter *iter)
 {
 	unsigned int hlen = iter->hlen;
@@ -671,7 +659,7 @@ void ip_frag_init(struct sk_buff *skb, unsigned int hlen,
 EXPORT_SYMBOL(ip_frag_init);
 
 static void ip_frag_ipcb(struct sk_buff *from, struct sk_buff *to,
-			 bool first_frag, struct ip_frag_state *state)
+			 bool first_frag)
 {
 	/* Copy the flags to each fragment. */
 	IPCB(to)->flags = IPCB(from)->flags;
@@ -845,12 +833,13 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 
 		/* Everything is OK. Generate! */
 		ip_fraglist_init(skb, iph, hlen, &iter);
+		ip_options_fragment(iter.frag);
 
 		for (;;) {
 			/* Prepare header of the next frame,
 			 * before previous one went down. */
 			if (iter.frag) {
-				ip_fraglist_ipcb_prepare(skb, &iter);
+				IPCB(iter.frag)->flags = IPCB(skb)->flags;
 				ip_fraglist_prepare(skb, &iter);
 			}
 
@@ -905,7 +894,7 @@ slow_path:
 			err = PTR_ERR(skb2);
 			goto fail;
 		}
-		ip_frag_ipcb(skb, skb2, first_frag, &state);
+		ip_frag_ipcb(skb, skb2, first_frag);
 
 		/*
 		 *	Put this fragment into the sending queue.
-- 
GitLab


From 9b4444197252bec2f3248b3e4fff11a5d571c19e Mon Sep 17 00:00:00 2001
From: Yajun Deng <yajun.deng@linux.dev>
Date: Mon, 30 Aug 2021 17:16:40 +0800
Subject: [PATCH 3529/4878] net: ipv4: Fix the warning for dereference

[ Upstream commit 1b9fbe813016b08e08b22ddba4ddbf9cb1b04b00 ]

Add a if statements to avoid the warning.

Dan Carpenter report:
The patch faf482ca196a: "net: ipv4: Move ip_options_fragment() out of
loop" from Aug 23, 2021, leads to the following Smatch complaint:

    net/ipv4/ip_output.c:833 ip_do_fragment()
    warn: variable dereferenced before check 'iter.frag' (see line 828)

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: faf482ca196a ("net: ipv4: Move ip_options_fragment() out of loop")
Link: https://lore.kernel.org/netdev/20210830073802.GR7722@kadam/T/#t
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/ip_output.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index fb91a466b2d34..e77afaecc9818 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -833,7 +833,9 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 
 		/* Everything is OK. Generate! */
 		ip_fraglist_init(skb, iph, hlen, &iter);
-		ip_options_fragment(iter.frag);
+
+		if (iter.frag)
+			ip_options_fragment(iter.frag);
 
 		for (;;) {
 			/* Prepare header of the next frame,
-- 
GitLab


From b469cf91fb63f1d1523fd834b207ce88bad19369 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Fri, 21 Jan 2022 16:57:31 -0800
Subject: [PATCH 3530/4878] ipv4: fix ip option filtering for locally generated
 fragments

[ Upstream commit 27a8caa59babb96c5890569e131bc0eb6d45daee ]

During IP fragmentation we sanitize IP options. This means overwriting
options which should not be copied with NOPs. Only the first fragment
has the original, full options.

ip_fraglist_prepare() copies the IP header and options from previous
fragment to the next one. Commit 19c3401a917b ("net: ipv4: place control
buffer handling away from fragmentation iterators") moved sanitizing
options before ip_fraglist_prepare() which means options are sanitized
and then overwritten again with the old values.

Fixing this is not enough, however, nor did the sanitization work
prior to aforementioned commit.

ip_options_fragment() (which does the sanitization) uses ipcb->opt.optlen
for the length of the options. ipcb->opt of fragments is not populated
(it's 0), only the head skb has the state properly built. So even when
called at the right time ip_options_fragment() does nothing. This seems
to date back all the way to v2.5.44 when the fast path for pre-fragmented
skbs had been introduced. Prior to that ip_options_build() would have been
called for every fragment (in fact ever since v2.5.44 the fragmentation
handing in ip_options_build() has been dead code, I'll clean it up in
-next).

In the original patch (see Link) caixf mentions fixing the handling
for fragments other than the second one, but I'm not sure how _any_
fragment could have had their options sanitized with the code
as it stood.

Tested with python (MTU on lo lowered to 1000 to force fragmentation):

  import socket
  s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
  s.setsockopt(socket.IPPROTO_IP, socket.IP_OPTIONS,
               bytearray([7,4,5,192, 20|0x80,4,1,0]))
  s.sendto(b'1'*2000, ('127.0.0.1', 1234))

Before:

IP (tos 0x0, ttl 64, id 1053, offset 0, flags [+], proto UDP (17), length 996, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256))
    localhost.36500 > localhost.search-agent: UDP, length 2000
IP (tos 0x0, ttl 64, id 1053, offset 968, flags [+], proto UDP (17), length 996, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256))
    localhost > localhost: udp
IP (tos 0x0, ttl 64, id 1053, offset 1936, flags [none], proto UDP (17), length 100, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256))
    localhost > localhost: udp

After:

IP (tos 0x0, ttl 96, id 42549, offset 0, flags [+], proto UDP (17), length 996, options (RR [bad length 4] [bad ptr 5] 192.148.4.1,,RA value 256))
    localhost.51607 > localhost.search-agent: UDP, bad length 2000 > 960
IP (tos 0x0, ttl 96, id 42549, offset 968, flags [+], proto UDP (17), length 996, options (NOP,NOP,NOP,NOP,RA value 256))
    localhost > localhost: udp
IP (tos 0x0, ttl 96, id 42549, offset 1936, flags [none], proto UDP (17), length 100, options (NOP,NOP,NOP,NOP,RA value 256))
    localhost > localhost: udp

RA (20 | 0x80) is now copied as expected, RR (7) is "NOPed out".

Link: https://lore.kernel.org/netdev/20220107080559.122713-1-ooppublic@163.com/
Fixes: 19c3401a917b ("net: ipv4: place control buffer handling away from fragmentation iterators")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: caixf <ooppublic@163.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/ip_output.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index e77afaecc9818..4f76e8183f403 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -834,15 +834,24 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 		/* Everything is OK. Generate! */
 		ip_fraglist_init(skb, iph, hlen, &iter);
 
-		if (iter.frag)
-			ip_options_fragment(iter.frag);
-
 		for (;;) {
 			/* Prepare header of the next frame,
 			 * before previous one went down. */
 			if (iter.frag) {
+				bool first_frag = (iter.offset == 0);
+
 				IPCB(iter.frag)->flags = IPCB(skb)->flags;
 				ip_fraglist_prepare(skb, &iter);
+				if (first_frag && IPCB(skb)->opt.optlen) {
+					/* ipcb->opt is not populated for frags
+					 * coming from __ip_make_skb(),
+					 * ip_options_fragment() needs optlen
+					 */
+					IPCB(iter.frag)->opt.optlen =
+						IPCB(skb)->opt.optlen;
+					ip_options_fragment(iter.frag);
+					ip_send_check(iter.iph);
+				}
 			}
 
 			skb->tstamp = tstamp;
-- 
GitLab


From 55258b505996d05f62830192422ba9b4df045677 Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Fri, 21 Jan 2022 18:59:19 -0800
Subject: [PATCH 3531/4878] ibmvnic: init ->running_cap_crqs early

[ Upstream commit 151b6a5c06b678687f64f2d9a99fd04d5cd32b72 ]

We use ->running_cap_crqs to determine when the ibmvnic_tasklet() should
send out the next protocol message type. i.e when we get back responses
to all our QUERY_CAPABILITY CRQs we send out REQUEST_CAPABILITY crqs.
Similiary, when we get responses to all the REQUEST_CAPABILITY crqs, we
send out the QUERY_IP_OFFLOAD CRQ.

We currently increment ->running_cap_crqs as we send out each CRQ and
have the ibmvnic_tasklet() send out the next message type, when this
running_cap_crqs count drops to 0.

This assumes that all the CRQs of the current type were sent out before
the count drops to 0. However it is possible that we send out say 6 CRQs,
get preempted and receive all the 6 responses before we send out the
remaining CRQs. This can result in ->running_cap_crqs count dropping to
zero before all messages of the current type were sent and we end up
sending the next protocol message too early.

Instead initialize the ->running_cap_crqs upfront so the tasklet will
only send the next protocol message after all responses are received.

Use the cap_reqs local variable to also detect any discrepancy (either
now or in future) in the number of capability requests we actually send.

Currently only send_query_cap() is affected by this behavior (of sending
next message early) since it is called from the worker thread (during
reset) and from application thread (during ->ndo_open()) and they can be
preempted. send_request_cap() is only called from the tasklet  which
processes CRQ responses sequentially, is not be affected.  But to
maintain the existing symmtery with send_query_capability() we update
send_request_capability() also.

Fixes: 249168ad07cd ("ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 106 +++++++++++++++++++----------
 1 file changed, 71 insertions(+), 35 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 4f99d97638248..232c68af4c60a 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -3401,11 +3401,25 @@ static void send_request_cap(struct ibmvnic_adapter *adapter, int retry)
 	struct device *dev = &adapter->vdev->dev;
 	union ibmvnic_crq crq;
 	int max_entries;
+	int cap_reqs;
+
+	/* We send out 6 or 7 REQUEST_CAPABILITY CRQs below (depending on
+	 * the PROMISC flag). Initialize this count upfront. When the tasklet
+	 * receives a response to all of these, it will send the next protocol
+	 * message (QUERY_IP_OFFLOAD).
+	 */
+	if (!(adapter->netdev->flags & IFF_PROMISC) ||
+	    adapter->promisc_supported)
+		cap_reqs = 7;
+	else
+		cap_reqs = 6;
 
 	if (!retry) {
 		/* Sub-CRQ entries are 32 byte long */
 		int entries_page = 4 * PAGE_SIZE / (sizeof(u64) * 4);
 
+		atomic_set(&adapter->running_cap_crqs, cap_reqs);
+
 		if (adapter->min_tx_entries_per_subcrq > entries_page ||
 		    adapter->min_rx_add_entries_per_subcrq > entries_page) {
 			dev_err(dev, "Fatal, invalid entries per sub-crq\n");
@@ -3466,44 +3480,45 @@ static void send_request_cap(struct ibmvnic_adapter *adapter, int retry)
 					adapter->opt_rx_comp_queues;
 
 		adapter->req_rx_add_queues = adapter->max_rx_add_queues;
+	} else {
+		atomic_add(cap_reqs, &adapter->running_cap_crqs);
 	}
-
 	memset(&crq, 0, sizeof(crq));
 	crq.request_capability.first = IBMVNIC_CRQ_CMD;
 	crq.request_capability.cmd = REQUEST_CAPABILITY;
 
 	crq.request_capability.capability = cpu_to_be16(REQ_TX_QUEUES);
 	crq.request_capability.number = cpu_to_be64(adapter->req_tx_queues);
-	atomic_inc(&adapter->running_cap_crqs);
+	cap_reqs--;
 	ibmvnic_send_crq(adapter, &crq);
 
 	crq.request_capability.capability = cpu_to_be16(REQ_RX_QUEUES);
 	crq.request_capability.number = cpu_to_be64(adapter->req_rx_queues);
-	atomic_inc(&adapter->running_cap_crqs);
+	cap_reqs--;
 	ibmvnic_send_crq(adapter, &crq);
 
 	crq.request_capability.capability = cpu_to_be16(REQ_RX_ADD_QUEUES);
 	crq.request_capability.number = cpu_to_be64(adapter->req_rx_add_queues);
-	atomic_inc(&adapter->running_cap_crqs);
+	cap_reqs--;
 	ibmvnic_send_crq(adapter, &crq);
 
 	crq.request_capability.capability =
 	    cpu_to_be16(REQ_TX_ENTRIES_PER_SUBCRQ);
 	crq.request_capability.number =
 	    cpu_to_be64(adapter->req_tx_entries_per_subcrq);
-	atomic_inc(&adapter->running_cap_crqs);
+	cap_reqs--;
 	ibmvnic_send_crq(adapter, &crq);
 
 	crq.request_capability.capability =
 	    cpu_to_be16(REQ_RX_ADD_ENTRIES_PER_SUBCRQ);
 	crq.request_capability.number =
 	    cpu_to_be64(adapter->req_rx_add_entries_per_subcrq);
-	atomic_inc(&adapter->running_cap_crqs);
+	cap_reqs--;
 	ibmvnic_send_crq(adapter, &crq);
 
 	crq.request_capability.capability = cpu_to_be16(REQ_MTU);
 	crq.request_capability.number = cpu_to_be64(adapter->req_mtu);
-	atomic_inc(&adapter->running_cap_crqs);
+	cap_reqs--;
 	ibmvnic_send_crq(adapter, &crq);
 
 	if (adapter->netdev->flags & IFF_PROMISC) {
@@ -3511,16 +3526,21 @@ static void send_request_cap(struct ibmvnic_adapter *adapter, int retry)
 			crq.request_capability.capability =
 			    cpu_to_be16(PROMISC_REQUESTED);
 			crq.request_capability.number = cpu_to_be64(1);
-			atomic_inc(&adapter->running_cap_crqs);
+			cap_reqs--;
 			ibmvnic_send_crq(adapter, &crq);
 		}
 	} else {
 		crq.request_capability.capability =
 		    cpu_to_be16(PROMISC_REQUESTED);
 		crq.request_capability.number = cpu_to_be64(0);
-		atomic_inc(&adapter->running_cap_crqs);
+		cap_reqs--;
 		ibmvnic_send_crq(adapter, &crq);
 	}
+
+	/* Keep at end to catch any discrepancy between expected and actual
+	 * CRQs sent.
+	 */
+	WARN_ON(cap_reqs != 0);
 }
 
 static int pending_scrq(struct ibmvnic_adapter *adapter,
@@ -3953,118 +3973,132 @@ static void send_query_map(struct ibmvnic_adapter *adapter)
 static void send_query_cap(struct ibmvnic_adapter *adapter)
 {
 	union ibmvnic_crq crq;
+	int cap_reqs;
+
+	/* We send out 25 QUERY_CAPABILITY CRQs below.  Initialize this count
+	 * upfront. When the tasklet receives a response to all of these, it
+	 * can send out the next protocol messaage (REQUEST_CAPABILITY).
+	 */
+	cap_reqs = 25;
+
+	atomic_set(&adapter->running_cap_crqs, cap_reqs);
 
-	atomic_set(&adapter->running_cap_crqs, 0);
 	memset(&crq, 0, sizeof(crq));
 	crq.query_capability.first = IBMVNIC_CRQ_CMD;
 	crq.query_capability.cmd = QUERY_CAPABILITY;
 
 	crq.query_capability.capability = cpu_to_be16(MIN_TX_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MIN_RX_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MIN_RX_ADD_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MAX_TX_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MAX_RX_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MAX_RX_ADD_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 	    cpu_to_be16(MIN_TX_ENTRIES_PER_SUBCRQ);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 	    cpu_to_be16(MIN_RX_ADD_ENTRIES_PER_SUBCRQ);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 	    cpu_to_be16(MAX_TX_ENTRIES_PER_SUBCRQ);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 	    cpu_to_be16(MAX_RX_ADD_ENTRIES_PER_SUBCRQ);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(TCP_IP_OFFLOAD);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(PROMISC_SUPPORTED);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MIN_MTU);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MAX_MTU);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MAX_MULTICAST_FILTERS);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(VLAN_HEADER_INSERTION);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(RX_VLAN_HEADER_INSERTION);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(MAX_TX_SG_ENTRIES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(RX_SG_SUPPORTED);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(OPT_TX_COMP_SUB_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(OPT_RX_COMP_QUEUES);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 			cpu_to_be16(OPT_RX_BUFADD_Q_PER_RX_COMP_Q);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 			cpu_to_be16(OPT_TX_ENTRIES_PER_SUBCRQ);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability =
 			cpu_to_be16(OPT_RXBA_ENTRIES_PER_SUBCRQ);
-	atomic_inc(&adapter->running_cap_crqs);
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
 
 	crq.query_capability.capability = cpu_to_be16(TX_RX_DESC_REQ);
-	atomic_inc(&adapter->running_cap_crqs);
+
 	ibmvnic_send_crq(adapter, &crq);
+	cap_reqs--;
+
+	/* Keep at end to catch any discrepancy between expected and actual
+	 * CRQs sent.
+	 */
+	WARN_ON(cap_reqs != 0);
 }
 
 static void send_query_ip_offload(struct ibmvnic_adapter *adapter)
@@ -4369,6 +4403,8 @@ static void handle_request_cap_rsp(union ibmvnic_crq *crq,
 	char *name;
 
 	atomic_dec(&adapter->running_cap_crqs);
+	netdev_dbg(adapter->netdev, "Outstanding request-caps: %d\n",
+		   atomic_read(&adapter->running_cap_crqs));
 	switch (be16_to_cpu(crq->request_capability_rsp.capability)) {
 	case REQ_TX_QUEUES:
 		req_value = &adapter->req_tx_queues;
-- 
GitLab


From 0a60d04abc62b8cbf93fbd9d5f6f1eddad2004ec Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Fri, 21 Jan 2022 18:59:20 -0800
Subject: [PATCH 3532/4878] ibmvnic: don't spin in tasklet

[ Upstream commit 48079e7fdd0269d66b1d7d66ae88bd03162464ad ]

ibmvnic_tasklet() continuously spins waiting for responses to all
capability requests. It does this to avoid encountering an error
during initialization of the vnic. However if there is a bug in the
VIOS and we do not receive a response to one or more queries the
tasklet ends up spinning continuously leading to hard lock ups.

If we fail to receive a message from the VIOS it is reasonable to
timeout the login attempt rather than spin indefinitely in the tasklet.

Fixes: 249168ad07cd ("ibmvnic: Make CRQ interrupt tasklet wait for all capabilities crqs")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 232c68af4c60a..c7be7ab131b19 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -5075,12 +5075,6 @@ static void ibmvnic_tasklet(struct tasklet_struct *t)
 			ibmvnic_handle_crq(crq, adapter);
 			crq->generic.first = 0;
 		}
-
-		/* remain in tasklet until all
-		 * capabilities responses are received
-		 */
-		if (!adapter->wait_capability)
-			done = true;
 	}
 	/* if capabilities CRQ's were sent in this tasklet, the following
 	 * tasklet must wait until all responses are received
-- 
GitLab


From d1d4616d3e75247c2ca4e508fc2d9dd85406824d Mon Sep 17 00:00:00 2001
From: Michael Kelley <mikelley@microsoft.com>
Date: Sun, 16 Jan 2022 11:18:31 -0800
Subject: [PATCH 3533/4878] video: hyperv_fb: Fix validation of screen
 resolution

[ Upstream commit 9ff5549b1d1d3c3a9d71220d44bd246586160f1d ]

In the WIN10 version of the Synthetic Video protocol with Hyper-V,
Hyper-V reports a list of supported resolutions as part of the protocol
negotiation. The driver calculates the maximum width and height from
the list of resolutions, and uses those maximums to validate any screen
resolution specified in the video= option on the kernel boot line.

This method of validation is incorrect. For example, the list of
supported resolutions could contain 1600x1200 and 1920x1080, both of
which fit in an 8 Mbyte frame buffer.  But calculating the max width
and height yields 1920 and 1200, and 1920x1200 resolution does not fit
in an 8 Mbyte frame buffer.  Unfortunately, this resolution is accepted,
causing a kernel fault when the driver accesses memory outside the
frame buffer.

Instead, validate the specified screen resolution by calculating
its size, and comparing against the frame buffer size.  Delete the
code for calculating the max width and height from the list of
resolutions, since these max values have no use.  Also add the
frame buffer size to the info message to aid in understanding why
a resolution might be rejected.

Fixes: 67e7cdb4829d ("video: hyperv: hyperv_fb: Obtain screen resolution from Hyper-V host")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://lore.kernel.org/r/1642360711-2335-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/hyperv_fb.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index 4dc9077dd2ac0..3c309ab208874 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -286,8 +286,6 @@ struct hvfb_par {
 
 static uint screen_width = HVFB_WIDTH;
 static uint screen_height = HVFB_HEIGHT;
-static uint screen_width_max = HVFB_WIDTH;
-static uint screen_height_max = HVFB_HEIGHT;
 static uint screen_depth;
 static uint screen_fb_size;
 static uint dio_fb_size; /* FB size for deferred IO */
@@ -581,7 +579,6 @@ static int synthvid_get_supported_resolution(struct hv_device *hdev)
 	int ret = 0;
 	unsigned long t;
 	u8 index;
-	int i;
 
 	memset(msg, 0, sizeof(struct synthvid_msg));
 	msg->vid_hdr.type = SYNTHVID_RESOLUTION_REQUEST;
@@ -612,13 +609,6 @@ static int synthvid_get_supported_resolution(struct hv_device *hdev)
 		goto out;
 	}
 
-	for (i = 0; i < msg->resolution_resp.resolution_count; i++) {
-		screen_width_max = max_t(unsigned int, screen_width_max,
-		    msg->resolution_resp.supported_resolution[i].width);
-		screen_height_max = max_t(unsigned int, screen_height_max,
-		    msg->resolution_resp.supported_resolution[i].height);
-	}
-
 	screen_width =
 		msg->resolution_resp.supported_resolution[index].width;
 	screen_height =
@@ -940,7 +930,7 @@ static void hvfb_get_option(struct fb_info *info)
 
 	if (x < HVFB_WIDTH_MIN || y < HVFB_HEIGHT_MIN ||
 	    (synthvid_ver_ge(par->synthvid_version, SYNTHVID_VERSION_WIN10) &&
-	    (x > screen_width_max || y > screen_height_max)) ||
+	    (x * y * screen_depth / 8 > screen_fb_size)) ||
 	    (par->synthvid_version == SYNTHVID_VERSION_WIN8 &&
 	     x * y * screen_depth / 8 > SYNTHVID_FB_SIZE_WIN8) ||
 	    (par->synthvid_version == SYNTHVID_VERSION_WIN7 &&
@@ -1193,8 +1183,8 @@ static int hvfb_probe(struct hv_device *hdev,
 	}
 
 	hvfb_get_option(info);
-	pr_info("Screen resolution: %dx%d, Color depth: %d\n",
-		screen_width, screen_height, screen_depth);
+	pr_info("Screen resolution: %dx%d, Color depth: %d, Frame buffer size: %d\n",
+		screen_width, screen_height, screen_depth, screen_fb_size);
 
 	ret = hvfb_getmem(hdev, info);
 	if (ret) {
-- 
GitLab


From 0b7d8db87d0bc7af1c27aa62780c2921d69e834a Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 7 Jan 2022 08:50:22 +0000
Subject: [PATCH 3534/4878] drm/msm/hdmi: Fix missing put_device() call in
 msm_hdmi_get_phy

[ Upstream commit 774fe0cd838d1b1419d41ab4ea0613c80d4ecbd7 ]

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the error handling path.

Fixes: e00012b256d4 ("drm/msm/hdmi: Make HDMI core get its PHY")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220107085026.23831-1-linmq006@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/hdmi/hdmi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 737453b6e5966..94f948ef279d1 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -97,10 +97,15 @@ static int msm_hdmi_get_phy(struct hdmi *hdmi)
 
 	of_node_put(phy_node);
 
-	if (!phy_pdev || !hdmi->phy) {
+	if (!phy_pdev) {
 		DRM_DEV_ERROR(&pdev->dev, "phy driver is not ready\n");
 		return -EPROBE_DEFER;
 	}
+	if (!hdmi->phy) {
+		DRM_DEV_ERROR(&pdev->dev, "phy driver is not ready\n");
+		put_device(&phy_pdev->dev);
+		return -EPROBE_DEFER;
+	}
 
 	hdmi->phy_dev = get_device(&phy_pdev->dev);
 
-- 
GitLab


From 93a6e920d8ccb4df846c03b6e72f7e08843d294c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Sun, 9 Jan 2022 20:24:31 +0100
Subject: [PATCH 3535/4878] drm/msm/dpu: invalid parameter check in
 dpu_setup_dspp_pcc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 170b22234d5495f5e0844246e23f004639ee89ba ]

The function performs a check on the "ctx" input parameter, however, it
is used before the check.

Initialize the "base" variable after the sanity check to avoid a
possible NULL pointer dereference.

Fixes: 4259ff7ae509e ("drm/msm/dpu: add support for pcc color block in dpu driver")
Addresses-Coverity-ID: 1493866 ("Null pointer dereference")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Link: https://lore.kernel.org/r/20220109192431.135949-1-jose.exposito89@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
index a7a24539921f3..a6efc11eba93f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c
@@ -26,9 +26,16 @@ static void dpu_setup_dspp_pcc(struct dpu_hw_dspp *ctx,
 		struct dpu_hw_pcc_cfg *cfg)
 {
 
-	u32 base = ctx->cap->sblk->pcc.base;
+	u32 base;
 
-	if (!ctx || !base) {
+	if (!ctx) {
+		DRM_ERROR("invalid ctx %pK\n", ctx);
+		return;
+	}
+
+	base = ctx->cap->sblk->pcc.base;
+
+	if (!base) {
 		DRM_ERROR("invalid ctx %pK pcc base 0x%x\n", ctx, base);
 		return;
 	}
-- 
GitLab


From 729e54636b3ebefb77796702a5b1f1ed5586895e Mon Sep 17 00:00:00 2001
From: Hangyu Hua <hbh25y@gmail.com>
Date: Mon, 24 Jan 2022 11:29:54 +0800
Subject: [PATCH 3536/4878] yam: fix a memory leak in yam_siocdevprivate()

[ Upstream commit 29eb31542787e1019208a2e1047bb7c76c069536 ]

ym needs to be free when ym->cmd != SIOCYAMSMCS.

Fixes: 0781168e23a2 ("yam: fix a missing-check bug")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/hamradio/yam.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 5ab53e9942f30..5d30b3e1806ab 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -951,9 +951,7 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 				 sizeof(struct yamdrv_ioctl_mcs));
 		if (IS_ERR(ym))
 			return PTR_ERR(ym);
-		if (ym->cmd != SIOCYAMSMCS)
-			return -EINVAL;
-		if (ym->bitrate > YAM_MAXBITRATE) {
+		if (ym->cmd != SIOCYAMSMCS || ym->bitrate > YAM_MAXBITRATE) {
 			kfree(ym);
 			return -EINVAL;
 		}
-- 
GitLab


From c9c81b393c745c9b05e4b913818c87d993485605 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
Date: Mon, 24 Jan 2022 15:35:29 +0100
Subject: [PATCH 3537/4878] net: cpsw: Properly initialise struct
 page_pool_params
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c63003e3d99761afb280add3b30de1cf30fa522b ]

The cpsw driver didn't properly initialise the struct page_pool_params
before calling page_pool_create(), which leads to crashes after the struct
has been expanded with new parameters.

The second Fixes tag below is where the buggy code was introduced, but
because the code was moved around this patch will only apply on top of the
commit in the first Fixes tag.

Fixes: c5013ac1dd0e ("net: ethernet: ti: cpsw: move set of common functions in cpsw_priv")
Fixes: 9ed4050c0d75 ("net: ethernet: ti: cpsw: add XDP support")
Reported-by: Colin Foster <colin.foster@in-advantage.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Tested-by: Colin Foster <colin.foster@in-advantage.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ti/cpsw_priv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/cpsw_priv.c b/drivers/net/ethernet/ti/cpsw_priv.c
index 424e644724e46..e74f2e95a46eb 100644
--- a/drivers/net/ethernet/ti/cpsw_priv.c
+++ b/drivers/net/ethernet/ti/cpsw_priv.c
@@ -1144,7 +1144,7 @@ int cpsw_fill_rx_channels(struct cpsw_priv *priv)
 static struct page_pool *cpsw_create_page_pool(struct cpsw_common *cpsw,
 					       int size)
 {
-	struct page_pool_params pp_params;
+	struct page_pool_params pp_params = {};
 	struct page_pool *pool;
 
 	pp_params.order = 0;
-- 
GitLab


From 699eef4ed910efd766ba8d16b9f8cd72f8161815 Mon Sep 17 00:00:00 2001
From: Yufeng Mo <moyufeng@huawei.com>
Date: Tue, 25 Jan 2022 15:03:12 +0800
Subject: [PATCH 3538/4878] net: hns3: handle empty unknown interrupt for VF

[ Upstream commit 2f61353cd2f789a4229b6f5c1c24a40a613357bb ]

Since some interrupt states may be cleared by hardware, the driver
may receive an empty interrupt. Currently, the VF driver directly
disables the vector0 interrupt in this case. As a result, the VF
is unavailable. Therefore, the vector0 interrupt should be enabled
in this case.

Fixes: b90fcc5bd904 ("net: hns3: add reset handling for VF when doing Core/Global/IMP reset")
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 6e7da1dc2e8c3..d6580e942724d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2382,8 +2382,7 @@ static irqreturn_t hclgevf_misc_irq_handle(int irq, void *data)
 		break;
 	}
 
-	if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER)
-		hclgevf_enable_vector(&hdev->misc_vector, true);
+	hclgevf_enable_vector(&hdev->misc_vector, true);
 
 	return IRQ_HANDLED;
 }
-- 
GitLab


From 869f1704f1c29debabde2fa2a12c30f90b81f86b Mon Sep 17 00:00:00 2001
From: Guillaume Nault <gnault@redhat.com>
Date: Wed, 26 Jan 2022 16:38:52 +0100
Subject: [PATCH 3539/4878] Revert "ipv6: Honor all IPv6 PIO Valid Lifetime
 values"

[ Upstream commit 36268983e90316b37000a005642af42234dabb36 ]

This reverts commit b75326c201242de9495ff98e5d5cff41d7fc0d9d.

This commit breaks Linux compatibility with USGv6 tests. The RFC this
commit was based on is actually an expired draft: no published RFC
currently allows the new behaviour it introduced.

Without full IETF endorsement, the flash renumbering scenario this
patch was supposed to enable is never going to work, as other IPv6
equipements on the same LAN will keep the 2 hours limit.

Fixes: b75326c20124 ("ipv6: Honor all IPv6 PIO Valid Lifetime values")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/addrconf.h |  2 ++
 net/ipv6/addrconf.c    | 27 ++++++++++++++++++++-------
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 78ea3e332688f..e7ce719838b5e 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -6,6 +6,8 @@
 #define RTR_SOLICITATION_INTERVAL	(4*HZ)
 #define RTR_SOLICITATION_MAX_INTERVAL	(3600*HZ)	/* 1 hour */
 
+#define MIN_VALID_LIFETIME		(2*3600)	/* 2 hours */
+
 #define TEMP_VALID_LIFETIME		(7*86400)
 #define TEMP_PREFERRED_LIFETIME		(86400)
 #define REGEN_MAX_RETRY			(3)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 29526937077b3..4dde49e628fab 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2577,7 +2577,7 @@ int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
 				 __u32 valid_lft, u32 prefered_lft)
 {
 	struct inet6_ifaddr *ifp = ipv6_get_ifaddr(net, addr, dev, 1);
-	int create = 0;
+	int create = 0, update_lft = 0;
 
 	if (!ifp && valid_lft) {
 		int max_addresses = in6_dev->cnf.max_addresses;
@@ -2621,19 +2621,32 @@ int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
 		unsigned long now;
 		u32 stored_lft;
 
-		/* Update lifetime (RFC4862 5.5.3 e)
-		 * We deviate from RFC4862 by honoring all Valid Lifetimes to
-		 * improve the reaction of SLAAC to renumbering events
-		 * (draft-gont-6man-slaac-renum-06, Section 4.2)
-		 */
+		/* update lifetime (RFC2462 5.5.3 e) */
 		spin_lock_bh(&ifp->lock);
 		now = jiffies;
 		if (ifp->valid_lft > (now - ifp->tstamp) / HZ)
 			stored_lft = ifp->valid_lft - (now - ifp->tstamp) / HZ;
 		else
 			stored_lft = 0;
-
 		if (!create && stored_lft) {
+			const u32 minimum_lft = min_t(u32,
+				stored_lft, MIN_VALID_LIFETIME);
+			valid_lft = max(valid_lft, minimum_lft);
+
+			/* RFC4862 Section 5.5.3e:
+			 * "Note that the preferred lifetime of the
+			 *  corresponding address is always reset to
+			 *  the Preferred Lifetime in the received
+			 *  Prefix Information option, regardless of
+			 *  whether the valid lifetime is also reset or
+			 *  ignored."
+			 *
+			 * So we should always update prefered_lft here.
+			 */
+			update_lft = 1;
+		}
+
+		if (update_lft) {
 			ifp->valid_lft = valid_lft;
 			ifp->prefered_lft = prefered_lft;
 			ifp->tstamp = now;
-- 
GitLab


From 9ffc94a81b0f2b7db78a630b5ae1032a551619d6 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@nvidia.com>
Date: Wed, 26 Jan 2022 15:10:25 +0200
Subject: [PATCH 3540/4878] net: bridge: vlan: fix single net device option
 dumping

[ Upstream commit dcb2c5c6ca9b9177f04abaf76e5a983d177c9414 ]

When dumping vlan options for a single net device we send the same
entries infinitely because user-space expects a 0 return at the end but
we keep returning skb->len and restarting the dump on retry. Fix it by
returning the value from br_vlan_dump_dev() if it completed or there was
an error. The only case that must return skb->len is when the dump was
incomplete and needs to continue (-EMSGSIZE).

Reported-by: Benjamin Poirier <bpoirier@nvidia.com>
Fixes: 8dcea187088b ("net: bridge: vlan: add rtm definitions and dump support")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_vlan.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 08c77418c687b..1f508d998fb2d 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -1873,7 +1873,8 @@ static int br_vlan_rtm_dump(struct sk_buff *skb, struct netlink_callback *cb)
 			goto out_err;
 		}
 		err = br_vlan_dump_dev(dev, skb, cb, dump_flags);
-		if (err && err != -EMSGSIZE)
+		/* if the dump completed without an error we return 0 here */
+		if (err != -EMSGSIZE)
 			goto out_err;
 	} else {
 		for_each_netdev_rcu(net, dev) {
-- 
GitLab


From 58f72918f94252b2cf881f08d7c1b20a6caae0a2 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 26 Jan 2022 16:51:16 -0800
Subject: [PATCH 3541/4878] ipv4: raw: lock the socket in raw_bind()

[ Upstream commit 153a0d187e767c68733b8e9f46218eb1f41ab902 ]

For some reason, raw_bind() forgot to lock the socket.

BUG: KCSAN: data-race in __ip4_datagram_connect / raw_bind

write to 0xffff8881170d4308 of 4 bytes by task 5466 on cpu 0:
 raw_bind+0x1b0/0x250 net/ipv4/raw.c:739
 inet_bind+0x56/0xa0 net/ipv4/af_inet.c:443
 __sys_bind+0x14b/0x1b0 net/socket.c:1697
 __do_sys_bind net/socket.c:1708 [inline]
 __se_sys_bind net/socket.c:1706 [inline]
 __x64_sys_bind+0x3d/0x50 net/socket.c:1706
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881170d4308 of 4 bytes by task 5468 on cpu 1:
 __ip4_datagram_connect+0xb7/0x7b0 net/ipv4/datagram.c:39
 ip4_datagram_connect+0x2a/0x40 net/ipv4/datagram.c:89
 inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576
 __sys_connect_file net/socket.c:1900 [inline]
 __sys_connect+0x197/0x1b0 net/socket.c:1917
 __do_sys_connect net/socket.c:1927 [inline]
 __se_sys_connect net/socket.c:1924 [inline]
 __x64_sys_connect+0x3d/0x50 net/socket.c:1924
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00000000 -> 0x0003007f

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 5468 Comm: syz-executor.5 Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/raw.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 7d26e0f8bdaeb..5d95f80314f95 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -721,6 +721,7 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	int ret = -EINVAL;
 	int chk_addr_ret;
 
+	lock_sock(sk);
 	if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
 		goto out;
 
@@ -740,7 +741,9 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 		inet->inet_saddr = 0;  /* Use device */
 	sk_dst_reset(sk);
 	ret = 0;
-out:	return ret;
+out:
+	release_sock(sk);
+	return ret;
 }
 
 /*
-- 
GitLab


From ebc5b8e471e5016b6a37ef893b885a20fac81871 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 26 Jan 2022 17:10:21 -0800
Subject: [PATCH 3542/4878] ipv4: tcp: send zero IPID in SYNACK messages

[ Upstream commit 970a5a3ea86da637471d3cd04d513a0755aba4bf ]

In commit 431280eebed9 ("ipv4: tcp: send zero IPID for RST and
ACK sent in SYN-RECV and TIME-WAIT state") we took care of some
ctl packets sent by TCP.

It turns out we need to use a similar strategy for SYNACK packets.

By default, they carry IP_DF and IPID==0, but there are ways
to ask them to use the hashed IP ident generator and thus
be used to build off-path attacks.
(Ref: Off-Path TCP Exploits of the Mixed IPID Assignment)

One of this way is to force (before listener is started)
echo 1 >/proc/sys/net/ipv4/ip_no_pmtu_disc

Another way is using forged ICMP ICMP_FRAG_NEEDED
with a very small MTU (like 68) to force a false return from
ip_dont_fragment()

In this patch, ip_build_and_send_pkt() uses the following
heuristics.

1) Most SYNACK packets are smaller than IPV4_MIN_MTU and therefore
can use IP_DF regardless of the listener or route pmtu setting.

2) In case the SYNACK packet is bigger than IPV4_MIN_MTU,
we use prandom_u32() generator instead of the IPv4 hashed ident one.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Ray Che <xijiache@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Cc: Geoff Alexander <alexandg@cs.unm.edu>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/ip_output.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 4f76e8183f403..5e48b3d3a00db 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -162,12 +162,19 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const struct sock *sk,
 	iph->daddr    = (opt && opt->opt.srr ? opt->opt.faddr : daddr);
 	iph->saddr    = saddr;
 	iph->protocol = sk->sk_protocol;
-	if (ip_dont_fragment(sk, &rt->dst)) {
+	/* Do not bother generating IPID for small packets (eg SYNACK) */
+	if (skb->len <= IPV4_MIN_MTU || ip_dont_fragment(sk, &rt->dst)) {
 		iph->frag_off = htons(IP_DF);
 		iph->id = 0;
 	} else {
 		iph->frag_off = 0;
-		__ip_select_ident(net, iph, 1);
+		/* TCP packets here are SYNACK with fat IPv4/TCP options.
+		 * Avoid using the hashed IP ident generator.
+		 */
+		if (sk->sk_protocol == IPPROTO_TCP)
+			iph->id = (__force __be16)prandom_u32();
+		else
+			__ip_select_ident(net, iph, 1);
 	}
 
 	if (opt && opt->opt.optlen) {
-- 
GitLab


From bc58a5bb9e6c9a0ddca431548e0ea087e238c7a5 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 26 Jan 2022 17:34:04 -0800
Subject: [PATCH 3543/4878] ipv4: remove sparse error in ip_neigh_gw4()

[ Upstream commit 3c42b2019863b327caa233072c50739d4144dd16 ]

./include/net/route.h:373:48: warning: incorrect type in argument 2 (different base types)
./include/net/route.h:373:48:    expected unsigned int [usertype] key
./include/net/route.h:373:48:    got restricted __be32 [usertype] daddr

Fixes: 5c9f7c1dfc2e ("ipv4: Add helpers for neigh lookup for nexthop")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220127013404.1279313-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/route.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/route.h b/include/net/route.h
index ff021cab657e5..a07c277cd33e8 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -369,7 +369,7 @@ static inline struct neighbour *ip_neigh_gw4(struct net_device *dev,
 {
 	struct neighbour *neigh;
 
-	neigh = __ipv4_neigh_lookup_noref(dev, daddr);
+	neigh = __ipv4_neigh_lookup_noref(dev, (__force u32)daddr);
 	if (unlikely(!neigh))
 		neigh = __neigh_create(&arp_tbl, &daddr, dev, false);
 
-- 
GitLab


From 446ff1fc37c74093e81db40811a07b5a19f1d797 Mon Sep 17 00:00:00 2001
From: Tim Yi <tim.yi@pica8.com>
Date: Thu, 27 Jan 2022 15:49:53 +0800
Subject: [PATCH 3544/4878] net: bridge: vlan: fix memory leak in
 __allowed_ingress

[ Upstream commit fd20d9738395cf8e27d0a17eba34169699fccdff ]

When using per-vlan state, if vlan snooping and stats are disabled,
untagged or priority-tagged ingress frame will go to check pvid state.
If the port state is forwarding and the pvid state is not
learning/forwarding, untagged or priority-tagged frame will be dropped
but skb memory is not freed.
Should free skb when __allowed_ingress returns false.

Fixes: a580c76d534c ("net: bridge: vlan: add per-vlan state")
Signed-off-by: Tim Yi <tim.yi@pica8.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/r/20220127074953.12632-1-tim.yi@pica8.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/bridge/br_vlan.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 1f508d998fb2d..852f4b54e8811 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -543,10 +543,10 @@ static bool __allowed_ingress(const struct net_bridge *br,
 		if (!br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) {
 			if (*state == BR_STATE_FORWARDING) {
 				*state = br_vlan_get_pvid_state(vg);
-				return br_vlan_state_allowed(*state, true);
-			} else {
-				return true;
+				if (!br_vlan_state_allowed(*state, true))
+					goto drop;
 			}
+			return true;
 		}
 	}
 	v = br_vlan_find(vg, *vid);
-- 
GitLab


From f36554de7897748427b400ecbc063b2815cfd54a Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 14 Jan 2022 18:47:41 +0100
Subject: [PATCH 3545/4878] dt-bindings: can: tcan4x5x: fix mram-cfg RX FIFO
 config

commit 17a30422621c0e04cb6060d20d7edcefd7463347 upstream.

This tcan4x5x only comes with 2K of MRAM, a RX FIFO with a dept of 32
doesn't fit into the MRAM. Use a depth of 16 instead.

Fixes: 4edd396a1911 ("dt-bindings: can: tcan4x5x: Add DT bindings for TCAN4x5X driver")
Link: https://lore.kernel.org/all/20220119062951.2939851-1-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/net/can/tcan4x5x.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
index 0968b40aef1e8..e3501bfa22e90 100644
--- a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
@@ -31,7 +31,7 @@ tcan4x5x: tcan4x5x@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
 		spi-max-frequency = <10000000>;
-		bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
+		bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
 		device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
-- 
GitLab


From 8bae6db29c7f2d0452bf721d6c6b8cf28b6eee35 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Mon, 3 Jan 2022 04:24:02 +0300
Subject: [PATCH 3546/4878] usr/include/Makefile: add linux/nfc.h to the
 compile-test coverage

commit 10756dc5b02bff370ddd351d7744bc99ada659c2 upstream.

As linux/nfc.h userspace compilation was finally fixed by commits
79b69a83705e ("nfc: uapi: use kernel size_t to fix user-space builds")
and 7175f02c4e5f ("uapi: fix linux/nfc.h userspace compilation errors"),
there is no need to keep the compile-test exception for it in
usr/include/Makefile.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 usr/include/Makefile | 1 -
 1 file changed, 1 deletion(-)

diff --git a/usr/include/Makefile b/usr/include/Makefile
index f6b3c85d900ed..703a255cddc63 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -34,7 +34,6 @@ no-header-test += linux/hdlc/ioctl.h
 no-header-test += linux/ivtv.h
 no-header-test += linux/kexec.h
 no-header-test += linux/matroxfb.h
-no-header-test += linux/nfc.h
 no-header-test += linux/omap3isp.h
 no-header-test += linux/omapfb.h
 no-header-test += linux/patchkey.h
-- 
GitLab


From 0b4e82403c84c88fb42972687774ae3a699d047d Mon Sep 17 00:00:00 2001
From: Amir Goldstein <amir73il@gmail.com>
Date: Thu, 20 Jan 2022 23:53:04 +0200
Subject: [PATCH 3547/4878] fsnotify: invalidate dcache before IN_DELETE event

commit a37d9a17f099072fe4d3a9048b0321978707a918 upstream.

Apparently, there are some applications that use IN_DELETE event as an
invalidation mechanism and expect that if they try to open a file with
the name reported with the delete event, that it should not contain the
content of the deleted file.

Commit 49246466a989 ("fsnotify: move fsnotify_nameremove() hook out of
d_delete()") moved the fsnotify delete hook before d_delete() so fsnotify
will have access to a positive dentry.

This allowed a race where opening the deleted file via cached dentry
is now possible after receiving the IN_DELETE event.

To fix the regression, create a new hook fsnotify_delete() that takes
the unlinked inode as an argument and use a helper d_delete_notify() to
pin the inode, so we can pass it to fsnotify_delete() after d_delete().

Backporting hint: this regression is from v5.3. Although patch will
apply with only trivial conflicts to v5.4 and v5.10, it won't build,
because fsnotify_delete() implementation is different in each of those
versions (see fsnotify_link()).

A follow up patch will fix the fsnotify_unlink/rmdir() calls in pseudo
filesystem that do not need to call d_delete().

Link: https://lore.kernel.org/r/20220120215305.282577-1-amir73il@gmail.com
Reported-by: Ivan Delalande <colona@arista.com>
Link: https://lore.kernel.org/linux-fsdevel/YeNyzoDM5hP5LtGW@visor/
Fixes: 49246466a989 ("fsnotify: move fsnotify_nameremove() hook out of d_delete()")
Cc: stable@vger.kernel.org # v5.3+
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/ioctl.c         |  6 ++---
 fs/namei.c               | 10 ++++-----
 include/linux/fsnotify.h | 48 +++++++++++++++++++++++++++++++++++-----
 3 files changed, 49 insertions(+), 15 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 040db0dfba264..b5e9bfe884c4b 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3103,10 +3103,8 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
 	inode_lock(inode);
 	err = btrfs_delete_subvolume(dir, dentry);
 	inode_unlock(inode);
-	if (!err) {
-		fsnotify_rmdir(dir, dentry);
-		d_delete(dentry);
-	}
+	if (!err)
+		d_delete_notify(dir, dentry);
 
 out_dput:
 	dput(dentry);
diff --git a/fs/namei.c b/fs/namei.c
index 4c9d0c36545d3..72f354b62dd5d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3709,13 +3709,12 @@ int vfs_rmdir(struct inode *dir, struct dentry *dentry)
 	dentry->d_inode->i_flags |= S_DEAD;
 	dont_mount(dentry);
 	detach_mounts(dentry);
-	fsnotify_rmdir(dir, dentry);
 
 out:
 	inode_unlock(dentry->d_inode);
 	dput(dentry);
 	if (!error)
-		d_delete(dentry);
+		d_delete_notify(dir, dentry);
 	return error;
 }
 EXPORT_SYMBOL(vfs_rmdir);
@@ -3825,7 +3824,6 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegate
 			if (!error) {
 				dont_mount(dentry);
 				detach_mounts(dentry);
-				fsnotify_unlink(dir, dentry);
 			}
 		}
 	}
@@ -3833,9 +3831,11 @@ out:
 	inode_unlock(target);
 
 	/* We don't d_delete() NFS sillyrenamed files--they still exist. */
-	if (!error && !(dentry->d_flags & DCACHE_NFSFS_RENAMED)) {
+	if (!error && dentry->d_flags & DCACHE_NFSFS_RENAMED) {
+		fsnotify_unlink(dir, dentry);
+	} else if (!error) {
 		fsnotify_link_count(target);
-		d_delete(dentry);
+		d_delete_notify(dir, dentry);
 	}
 
 	return error;
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index f8acddcf54fb4..79add91eaa04e 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -203,6 +203,42 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode,
 	fsnotify_name(dir, FS_CREATE, inode, &new_dentry->d_name, 0);
 }
 
+/*
+ * fsnotify_delete - @dentry was unlinked and unhashed
+ *
+ * Caller must make sure that dentry->d_name is stable.
+ *
+ * Note: unlike fsnotify_unlink(), we have to pass also the unlinked inode
+ * as this may be called after d_delete() and old_dentry may be negative.
+ */
+static inline void fsnotify_delete(struct inode *dir, struct inode *inode,
+				   struct dentry *dentry)
+{
+	__u32 mask = FS_DELETE;
+
+	if (S_ISDIR(inode->i_mode))
+		mask |= FS_ISDIR;
+
+	fsnotify_name(dir, mask, inode, &dentry->d_name, 0);
+}
+
+/**
+ * d_delete_notify - delete a dentry and call fsnotify_delete()
+ * @dentry: The dentry to delete
+ *
+ * This helper is used to guaranty that the unlinked inode cannot be found
+ * by lookup of this name after fsnotify_delete() event has been delivered.
+ */
+static inline void d_delete_notify(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = d_inode(dentry);
+
+	ihold(inode);
+	d_delete(dentry);
+	fsnotify_delete(dir, inode, dentry);
+	iput(inode);
+}
+
 /*
  * fsnotify_unlink - 'name' was unlinked
  *
@@ -210,10 +246,10 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode,
  */
 static inline void fsnotify_unlink(struct inode *dir, struct dentry *dentry)
 {
-	/* Expected to be called before d_delete() */
-	WARN_ON_ONCE(d_is_negative(dentry));
+	if (WARN_ON_ONCE(d_is_negative(dentry)))
+		return;
 
-	fsnotify_dirent(dir, dentry, FS_DELETE);
+	fsnotify_delete(dir, d_inode(dentry), dentry);
 }
 
 /*
@@ -233,10 +269,10 @@ static inline void fsnotify_mkdir(struct inode *inode, struct dentry *dentry)
  */
 static inline void fsnotify_rmdir(struct inode *dir, struct dentry *dentry)
 {
-	/* Expected to be called before d_delete() */
-	WARN_ON_ONCE(d_is_negative(dentry));
+	if (WARN_ON_ONCE(d_is_negative(dentry)))
+		return;
 
-	fsnotify_dirent(dir, dentry, FS_DELETE | FS_ISDIR);
+	fsnotify_delete(dir, d_inode(dentry), dentry);
 }
 
 /*
-- 
GitLab


From b63e120189fd92aff00096d11e2fc5253f60248b Mon Sep 17 00:00:00 2001
From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Date: Sun, 9 Jan 2022 18:36:43 +0900
Subject: [PATCH 3548/4878] block: Fix wrong offset in bio_truncate()

commit 3ee859e384d453d6ac68bfd5971f630d9fa46ad3 upstream.

bio_truncate() clears the buffer outside of last block of bdev, however
current bio_truncate() is using the wrong offset of page. So it can
return the uninitialized data.

This happened when both of truncated/corrupted FS and userspace (via
bdev) are trying to read the last of bdev.

Reported-by: syzbot+ac94ae5f68b84197f41c@syzkaller.appspotmail.com
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/875yqt1c9g.fsf@mail.parknet.co.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/bio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/block/bio.c b/block/bio.c
index 0703a208ca248..f8d26ce7b61b0 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -575,7 +575,8 @@ void bio_truncate(struct bio *bio, unsigned new_size)
 				offset = new_size - done;
 			else
 				offset = 0;
-			zero_user(bv.bv_page, offset, bv.bv_len - offset);
+			zero_user(bv.bv_page, bv.bv_offset + offset,
+				  bv.bv_len - offset);
 			truncated = true;
 		}
 		done += bv.bv_len;
-- 
GitLab


From b43e9d2f6fc771612bb5ec98af5b39195c0ce233 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 22 Nov 2021 14:21:38 +0100
Subject: [PATCH 3549/4878] mtd: rawnand: mpc5121: Remove unused variable in
 ads5121_select_chip()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 33a0da68fb073360d36ce1a0e852f75fede7c21e upstream.

drivers/mtd/nand/raw/mpc5121_nfc.c: In function ‘ads5121_select_chip’:
drivers/mtd/nand/raw/mpc5121_nfc.c:294:19: warning: unused variable ‘mtd’ [-Wunused-variable]
  294 |  struct mtd_info *mtd = nand_to_mtd(nand);
      |                   ^~~

Fixes: 758b56f58b66bebc ("mtd: rawnand: Pass a nand_chip object to chip->select_chip()")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211122132138.3899138-1-geert@linux-m68k.org
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/mpc5121_nfc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/mpc5121_nfc.c b/drivers/mtd/nand/raw/mpc5121_nfc.c
index cb293c50acb87..5b9271b9c3265 100644
--- a/drivers/mtd/nand/raw/mpc5121_nfc.c
+++ b/drivers/mtd/nand/raw/mpc5121_nfc.c
@@ -291,7 +291,6 @@ static int ads5121_chipselect_init(struct mtd_info *mtd)
 /* Control chips select signal on ADS5121 board */
 static void ads5121_select_chip(struct nand_chip *nand, int chip)
 {
-	struct mtd_info *mtd = nand_to_mtd(nand);
 	struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand);
 	u8 v;
 
-- 
GitLab


From f255ac9e8776ffe10c6b31a27bb438debca85a81 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 1 Feb 2022 17:25:48 +0100
Subject: [PATCH 3550/4878] Linux 5.10.96

Link: https://lore.kernel.org/r/20220131105220.424085452@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index fa98893aae615..c43133c8a5b1f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 95
+SUBLEVEL = 96
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 9ef501f3295278e1f79c3b2012b4fef0e45e58fb Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Thu, 27 Jan 2022 20:44:30 +0000
Subject: [PATCH 3551/4878] ANDROID: fuse-bpf: Fix truncate

Maps would crash every second launch. This was caused by maps receiving
an incorrect file size after truncate, then mapping the file.

Bug: 215486645
Test: fuse_test + launch maps 100 times & look for native crashes
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I13b0211330fb48592864ab53f8ffff60c19aab11
---
 fs/fuse/backing.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 069cb15c4b33b..98f65cde6bdc2 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1738,6 +1738,9 @@ int fuse_setattr_backing(struct fuse_args *fa,
 	inode_lock(d_inode(backing_path->dentry));
 	res = notify_change(backing_path->dentry, &new_attr, NULL);
 	inode_unlock(d_inode(backing_path->dentry));
+
+	if (res == 0 && (new_attr.ia_valid & ATTR_SIZE))
+		i_size_write(dentry->d_inode, new_attr.ia_size);
 	return res;
 }
 
-- 
GitLab


From fcc2bfb27307c6ab51031df9bae07a3ab5606959 Mon Sep 17 00:00:00 2001
From: Steve Muckle <smuckle@google.com>
Date: Fri, 28 Jan 2022 19:52:59 +0000
Subject: [PATCH 3552/4878] Revert "ANDROID: GKI: enable test_stackinit kernel
 module"

Reason for revert: need alternative deployment path for test modules

Change-Id: Ie8b22c081d30c4846dfa8534bb8d86a0ef92b936
Bug: 181024194
Signed-off-by: Steve Muckle <smuckle@google.com>
---
 android/abi_gki_aarch64                |   6 --
 android/abi_gki_aarch64_virtual_device | 134 +++++++++++++++++--------
 android/gki_aarch64_modules            |   1 -
 arch/arm64/configs/gki_defconfig       |   2 +-
 arch/x86/configs/gki_defconfig         |   1 -
 5 files changed, 95 insertions(+), 49 deletions(-)

diff --git a/android/abi_gki_aarch64 b/android/abi_gki_aarch64
index 687e6f44d9ee1..57914f291962e 100644
--- a/android/abi_gki_aarch64
+++ b/android/abi_gki_aarch64
@@ -2,9 +2,3 @@
 # commonly used symbols
   module_layout
   __put_task_struct
-
-# required by test_stackinit.ko
-  memcpy
-  memset
-  printk
-  __stack_chk_fail
diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 021e7e3513838..a9dd78485076f 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -28,6 +28,9 @@
   bt_warn
   cancel_delayed_work_sync
   cancel_work_sync
+  capable
+  cfg80211_inform_bss_data
+  cfg80211_put_bss
   __cfi_slowpath
   __check_object_size
   __class_create
@@ -59,12 +62,15 @@
   delayed_work_timer_fn
   del_gendisk
   del_timer
+  del_timer_sync
   destroy_workqueue
   dev_close
   _dev_err
   device_add_disk
   device_create
+  device_initialize
   device_init_wakeup
+  device_register
   device_release_driver
   device_unregister
   _dev_info
@@ -76,6 +82,7 @@
   devm_request_threaded_irq
   _dev_notice
   dev_queue_xmit
+  dev_set_name
   _dev_warn
   dma_alloc_attrs
   dma_buf_export
@@ -89,6 +96,8 @@
   dma_set_mask
   dma_sync_sg_for_device
   dma_unmap_sg_attrs
+  down_read
+  down_write
   ether_setup
   ethtool_op_get_link
   eth_validate_addr
@@ -114,8 +123,14 @@
   hci_recv_frame
   hci_register_dev
   hci_unregister_dev
+  hwrng_register
+  hwrng_unregister
   ida_alloc_range
   ida_free
+  idr_alloc
+  idr_destroy
+  idr_remove
+  __init_rwsem
   __init_swait_queue_head
   init_timer_key
   init_wait_entry
@@ -145,10 +160,12 @@
   kmem_cache_free
   kmemdup
   kobject_uevent
+  krealloc
   kstrdup
   kstrndup
   kstrtoint
   kstrtouint
+  kstrtoull
   ktime_get
   ktime_get_mono_fast_ns
   ktime_get_raw_ts64
@@ -167,10 +184,13 @@
   memcpy
   memmove
   memparse
+  memremap
   memset
   memstart_addr
+  memunmap
   misc_deregister
   misc_register
+  mod_timer
   module_layout
   module_put
   __msecs_to_jiffies
@@ -196,11 +216,15 @@
   nf_conntrack_destroy
   no_llseek
   nonseekable_open
+  noop_llseek
   nr_cpu_ids
   __num_online_cpus
+  of_find_property
+  of_get_property
   of_property_read_variable_u32_array
   __page_pinner_migration_failed
   param_ops_bool
+  param_ops_charp
   param_ops_int
   param_ops_uint
   passthru_features_check
@@ -226,8 +250,11 @@
   platform_get_irq
   platform_get_resource
   pm_runtime_allow
+  __pm_runtime_disable
+  pm_runtime_enable
   pm_runtime_force_resume
   pm_runtime_force_suspend
+  __pm_runtime_idle
   __pm_runtime_resume
   pm_runtime_set_autosuspend_delay
   __pm_runtime_suspend
@@ -278,7 +305,9 @@
   schedule
   schedule_timeout
   scnprintf
+  seq_lseek
   seq_printf
+  seq_read
   serio_close
   serio_interrupt
   serio_open
@@ -301,6 +330,7 @@
   snd_card_free
   snd_card_new
   snd_card_register
+  snd_ctl_enum_info
   snd_ctl_sync_vmaster
   snd_device_new
   snd_jack_new
@@ -325,11 +355,13 @@
   strncmp
   strncpy
   strscpy
+  strsep
   sync_file_create
   synchronize_rcu
   sysfs_create_group
   __sysfs_match_string
   sysfs_remove_group
+  sysfs_remove_link
   system_wq
   trace_event_buffer_commit
   trace_event_buffer_reserve
@@ -353,6 +385,8 @@
   unregister_netdevice_queue
   unregister_virtio_device
   unregister_virtio_driver
+  up_read
+  up_write
   usb_alloc_urb
   usb_anchor_urb
   usb_control_msg
@@ -362,6 +396,7 @@
   usb_register_driver
   usb_submit_urb
   usb_unanchor_urb
+  __usecs_to_jiffies
   usleep_range
   vabits_actual
   vfree
@@ -382,7 +417,6 @@
   virtqueue_kick
   virtqueue_kick_prepare
   virtqueue_notify
-  vmalloc
   vmalloc_to_page
   vring_create_virtqueue
   vring_del_virtqueue
@@ -423,12 +457,10 @@
   mmc_remove_host
   mmc_request_done
   mmc_send_tuning
-  of_get_property
   pinctrl_lookup_state
   pinctrl_pm_select_sleep_state
   pinctrl_select_default_state
   pinctrl_select_state
-  __pm_runtime_idle
   regulator_disable
   regulator_enable
   reset_control_assert
@@ -493,9 +525,26 @@
   netdev_master_upper_dev_link
   rtnl_is_locked
 
-# required by goldfish_address_space.ko
-  memremap
-  memunmap
+# required by gnss-cmdline.ko
+  bus_find_device
+  device_find_child
+  device_match_name
+  platform_bus_type
+  strstr
+
+# required by gnss-serial.ko
+  gnss_allocate_device
+  gnss_deregister_device
+  gnss_insert_raw
+  gnss_put_device
+  gnss_register_device
+  serdev_device_close
+  serdev_device_open
+  serdev_device_set_baudrate
+  serdev_device_set_flow_control
+  serdev_device_wait_until_sent
+  serdev_device_write
+  serdev_device_write_wakeup
 
 # required by goldfish_battery.ko
   power_supply_changed
@@ -535,6 +584,12 @@
   skb_queue_head
   skb_queue_purge
 
+# required by ledtrig-audio.ko
+  led_set_brightness_nosleep
+  led_trigger_event
+  led_trigger_register
+  led_trigger_unregister
+
 # required by lzo-rle.ko
   lzorle1x_1_compress
 
@@ -648,7 +703,6 @@
 # required by psmouse.ko
   bus_register_notifier
   bus_unregister_notifier
-  del_timer_sync
   device_add_groups
   device_create_file
   device_remove_file
@@ -669,7 +723,6 @@
   input_set_capability
   kstrtobool
   kstrtou8
-  mod_timer
   ps2_begin_command
   ps2_cmd_aborted
   ps2_command
@@ -683,7 +736,6 @@
   serio_rescan
   serio_unregister_child_port
   strcasecmp
-  strsep
 
 # required by pulse8-cec.ko
   cec_allocate_adapter
@@ -706,7 +758,6 @@
   rtc_update_irq
 
 # required by slcan.ko
-  capable
   hex_asc_upper
   hex_to_bin
   msleep_interruptible
@@ -717,6 +768,7 @@
 
 # required by snd-hda-codec-generic.ko
   _ctype
+  devm_led_classdev_register_ext
   snd_ctl_boolean_stereo_info
   strlcat
   __sw_hweight32
@@ -730,8 +782,6 @@
   get_device_system_crosststamp
   kvasprintf
   ns_to_timespec64
-  __pm_runtime_disable
-  pm_runtime_enable
   pm_runtime_forbid
   __printk_ratelimit
   regcache_mark_dirty
@@ -743,7 +793,6 @@
   snd_ctl_add_vmaster_hook
   snd_ctl_apply_vmaster_followers
   snd_ctl_boolean_mono_info
-  snd_ctl_enum_info
   snd_ctl_find_id
   snd_ctl_make_virtual_master
   snd_ctl_new1
@@ -767,14 +816,11 @@
   bus_unregister
   device_add
   device_del
-  device_initialize
-  dev_set_name
   kasprintf
   kobject_add
   kobject_create_and_add
   kobject_init
   kobject_put
-  krealloc
   pm_runtime_get_if_active
   __pm_runtime_set_status
   prepare_to_wait
@@ -793,7 +839,6 @@
   param_array_ops
   param_get_int
   param_ops_bint
-  param_ops_charp
   param_set_int
   pci_dev_put
   pci_disable_msi
@@ -823,12 +868,38 @@
   dma_sync_sg_for_cpu
   __sg_page_iter_next
   __sg_page_iter_start
+  vmalloc
   vmap
   vunmap
 
-# required by test_meminit.ko
-  kmem_cache_alloc_bulk
-  kmem_cache_free_bulk
+# required by tpm.ko
+  alloc_chrdev_region
+  cdev_device_add
+  cdev_device_del
+  cdev_init
+  compat_only_sysfs_link_entry_to_kobj
+  devm_add_action
+  efi
+  efi_tpm_final_log_size
+  hash_digest_size
+  idr_get_next
+  idr_replace
+  jiffies_to_usecs
+  memchr_inv
+  of_property_match_string
+  pm_suspend_global_flags
+  securityfs_create_dir
+  securityfs_create_file
+  securityfs_remove
+  seq_open
+  seq_putc
+  seq_release
+  seq_write
+  unregister_chrdev_region
+
+# required by tpm_vtpm_proxy.ko
+  anon_inode_getfile
+  compat_ptr_ioctl
 
 # required by usbip-core.ko
   iov_iter_kvec
@@ -845,12 +916,10 @@
   devres_free
   of_device_is_compatible
   of_find_compatible_node
-  of_find_property
   of_get_next_parent
   of_parse_phandle
   of_platform_populate
   of_root
-  __usecs_to_jiffies
 
 # required by vexpress-sysreg.ko
   bgpio_init
@@ -867,7 +936,6 @@
   platform_bus
   platform_device_add_data
   sockfd_lookup
-  sysfs_remove_link
   usb_add_hcd
   usb_create_hcd
   usb_create_shared_hcd
@@ -889,8 +957,6 @@
 # required by virt_wifi.ko
   cfg80211_connect_done
   cfg80211_disconnected
-  cfg80211_inform_bss_data
-  cfg80211_put_bss
   cfg80211_scan_done
   __dev_get_by_index
   dev_printk
@@ -903,6 +969,9 @@
   wiphy_register
   wiphy_unregister
 
+# required by virt_wifi_sim.ko
+  ieee80211_get_channel_khz
+
 # required by virtio-gpu.ko
   __devm_request_region
   dma_fence_match_context
@@ -1020,7 +1089,6 @@
   is_vmalloc_addr
   kmalloc_order_trace
   memdup_user
-  noop_llseek
   seq_puts
   sync_file_get_fence
   __traceiter_dma_fence_emit
@@ -1033,8 +1101,6 @@
   ww_mutex_unlock
 
 # required by virtio-rng.ko
-  hwrng_register
-  hwrng_unregister
   wait_for_completion_killable
 
 # required by virtio_blk.ko
@@ -1084,8 +1150,6 @@
   pipe_unlock
   __refrigerator
   __register_chrdev
-  seq_lseek
-  seq_read
   single_open
   single_release
   __splice_from_pipe
@@ -1094,7 +1158,6 @@
 
 # required by virtio_mmio.ko
   device_for_each_child
-  device_register
   devm_platform_ioremap_resource
   platform_device_register_full
 
@@ -1243,25 +1306,16 @@
   crypto_has_alg
   disk_end_io_acct
   disk_start_io_acct
-  down_read
-  down_write
   flush_dcache_page
   free_percpu
   fsync_bdev
-  idr_alloc
-  idr_destroy
   idr_find
   idr_for_each
-  idr_remove
-  __init_rwsem
   kstrtou16
-  kstrtoull
   memset64
   mutex_is_locked
   page_endio
   sysfs_streq
-  up_read
-  up_write
   vzalloc
 
 # required by zsmalloc.ko
diff --git a/android/gki_aarch64_modules b/android/gki_aarch64_modules
index a6c3f332d9c3b..e69de29bb2d1d 100644
--- a/android/gki_aarch64_modules
+++ b/android/gki_aarch64_modules
@@ -1 +0,0 @@
-lib/test_stackinit.ko
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index f14d3312babad..18a66d54c2b2a 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -701,4 +701,4 @@ CONFIG_TRACE_MMIO_ACCESS=y
 CONFIG_TRACEFS_DISABLE_AUTOMOUNT=y
 CONFIG_HIST_TRIGGERS=y
 CONFIG_PID_IN_CONTEXTIDR=y
-CONFIG_TEST_STACKINIT=m
+# CONFIG_RUNTIME_TESTING_MENU is not set
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 3e023e187be34..22d7961f02e9a 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -630,4 +630,3 @@ CONFIG_BUG_ON_DATA_CORRUPTION=y
 CONFIG_TRACEFS_DISABLE_AUTOMOUNT=y
 CONFIG_HIST_TRIGGERS=y
 CONFIG_UNWINDER_FRAME_POINTER=y
-CONFIG_TEST_STACKINIT=m
-- 
GitLab


From 24077de9f5179cbb0110db43c36450d6fc7c598f Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 26 Jan 2022 13:09:39 -0800
Subject: [PATCH 3553/4878] ANDROID: incremental-fs: remove index and
 incomplete dir on umount

Cleanup incremental-fs left overs on umount, otherwise incr-fs will
complain as below:

BUG: Dentry {i=47a,n=.incomplete} still in use [unmount of incremental-fs]

This requires vfs_rmdir() of the special index and incomplete dirs.
Also free options.sysfs_name in incfs_mount_fs() instead of in
incfs_free_mount_info() to make it consistent with incfs_remount_fs().

Since set_anon_super() was used in incfs_mount_fs() the incfs_kill_sb()
should use kill_anon_super() instead of generic_shutdown_super()
otherwise it will leak the pseudo dev_t that set_anon_super() allocates.

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I7ea54db63513fc130e1997cbf79121015ee12405
---
 fs/incfs/data_mgmt.c | 1 -
 fs/incfs/vfs.c       | 9 +++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/fs/incfs/data_mgmt.c b/fs/incfs/data_mgmt.c
index a383c5b5ad7f7..fbab68a280d5c 100644
--- a/fs/incfs/data_mgmt.c
+++ b/fs/incfs/data_mgmt.c
@@ -175,7 +175,6 @@ void incfs_free_mount_info(struct mount_info *mi)
 		kfree(mi->pseudo_file_xattr[i].data);
 	kfree(mi->mi_per_uid_read_timeouts);
 	incfs_free_sysfs_node(mi->mi_sysfs_node);
-	kfree(mi->mi_options.sysfs_name);
 	kfree(mi);
 }
 
diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
index 35ac6e3daf8ec..84f9932233c45 100644
--- a/fs/incfs/vfs.c
+++ b/fs/incfs/vfs.c
@@ -1855,10 +1855,11 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 			goto err;
 	}
 
-	path_put(&backing_dir_path);
+	mi->mi_backing_dir_path = backing_dir_path;
 	sb->s_flags |= SB_ACTIVE;
 
 	pr_debug("incfs: mount\n");
+	free_options(&options);
 	return dget(sb->s_root);
 err:
 	sb->s_fs_info = NULL;
@@ -1903,9 +1904,13 @@ out:
 void incfs_kill_sb(struct super_block *sb)
 {
 	struct mount_info *mi = sb->s_fs_info;
+	struct inode *dinode = d_inode(mi->mi_backing_dir_path.dentry);
 
 	pr_debug("incfs: unmount\n");
-	generic_shutdown_super(sb);
+	vfs_rmdir(dinode, mi->mi_index_dir);
+	vfs_rmdir(dinode, mi->mi_incomplete_dir);
+
+	kill_anon_super(sb);
 	incfs_free_mount_info(mi);
 	sb->s_fs_info = NULL;
 }
-- 
GitLab


From e4efc54f542cef6cfa57ce4cbbcf964516332c8f Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Fri, 14 Jan 2022 00:33:48 -0800
Subject: [PATCH 3554/4878] ANDROID: build/build-tools ->
 build/kernel/build-tools.

This is part of the build -> build/kernel transition.

Test: TH
Bug: 204425264
Change-Id: I5bcf6ac00b6388af198e486f191e13f0b60050c9
Signed-off-by: Yifan Hong <elsk@google.com>
---
 build.config.common | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.common b/build.config.common
index e9c93042f46a3..22771bb4e3f39 100644
--- a/build.config.common
+++ b/build.config.common
@@ -6,7 +6,7 @@ KMI_GENERATION=0
 LLVM=1
 DEPMOD=depmod
 CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-${CLANG_VERSION}/bin
-BUILDTOOLS_PREBUILT_BIN=build/build-tools/path/linux-x86
+BUILDTOOLS_PREBUILT_BIN=build/kernel/build-tools/path/linux-x86
 DTC=${ROOT_DIR}/${BUILDTOOLS_PREBUILT_BIN}/dtc
 
 EXTRA_CMDS=''
-- 
GitLab


From 7ddb109103cac9bb6b7d08ff9509bfabd9a12624 Mon Sep 17 00:00:00 2001
From: Tim Murray <timmurray@google.com>
Date: Fri, 7 Jan 2022 12:48:44 -0800
Subject: [PATCH 3555/4878] FROMGIT: f2fs: move f2fs to use reader-unfair
 rwsems

f2fs rw_semaphores work better if writers can starve readers,
especially for the checkpoint thread, because writers are strictly
more important than reader threads. This prevents significant priority
inversion between low-priority readers that blocked while trying to
acquire the read lock and a second acquisition of the write lock that
might be blocking high priority work.

Bug: 214413989
Signed-off-by: Tim Murray <timmurray@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit e4544b63a7ee49e7fbebf35ece0a6acd3b9617ae
  git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev)
Change-Id: Ia0eb86447488c5ba9845a6b2eb98652200e08281
---
 fs/f2fs/checkpoint.c |  34 ++++-----
 fs/f2fs/compress.c   |   6 +-
 fs/f2fs/data.c       |  58 +++++++--------
 fs/f2fs/dir.c        |  12 +--
 fs/f2fs/f2fs.h       | 112 ++++++++++++++++++++++------
 fs/f2fs/file.c       | 170 +++++++++++++++++++++----------------------
 fs/f2fs/gc.c         |  46 ++++++------
 fs/f2fs/inline.c     |   4 +-
 fs/f2fs/namei.c      |  34 ++++-----
 fs/f2fs/node.c       |  84 ++++++++++-----------
 fs/f2fs/recovery.c   |   4 +-
 fs/f2fs/segment.c    |  44 +++++------
 fs/f2fs/super.c      |  58 +++++++--------
 fs/f2fs/sysfs.c      |   4 +-
 fs/f2fs/verity.c     |   4 +-
 fs/f2fs/xattr.c      |  12 +--
 16 files changed, 377 insertions(+), 309 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 5de8a1c8f2a45..c7a6d48e0da47 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -351,13 +351,13 @@ static int f2fs_write_meta_pages(struct address_space *mapping,
 		goto skip_write;
 
 	/* if locked failed, cp will flush dirty pages instead */
-	if (!down_write_trylock(&sbi->cp_global_sem))
+	if (!f2fs_down_write_trylock(&sbi->cp_global_sem))
 		goto skip_write;
 
 	trace_f2fs_writepages(mapping->host, wbc, META);
 	diff = nr_pages_to_write(sbi, META, wbc);
 	written = f2fs_sync_meta_pages(sbi, META, wbc->nr_to_write, FS_META_IO);
-	up_write(&sbi->cp_global_sem);
+	f2fs_up_write(&sbi->cp_global_sem);
 	wbc->nr_to_write = max((long)0, wbc->nr_to_write - written - diff);
 	return 0;
 
@@ -1159,7 +1159,7 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	if (!is_journalled_quota(sbi))
 		return false;
 
-	if (!down_write_trylock(&sbi->quota_sem))
+	if (!f2fs_down_write_trylock(&sbi->quota_sem))
 		return true;
 	if (is_sbi_flag_set(sbi, SBI_QUOTA_SKIP_FLUSH)) {
 		ret = false;
@@ -1171,7 +1171,7 @@ static bool __need_flush_quota(struct f2fs_sb_info *sbi)
 	} else if (get_pages(sbi, F2FS_DIRTY_QDATA)) {
 		ret = true;
 	}
-	up_write(&sbi->quota_sem);
+	f2fs_up_write(&sbi->quota_sem);
 	return ret;
 }
 
@@ -1228,10 +1228,10 @@ retry_flush_dents:
 	 * POR: we should ensure that there are no dirty node pages
 	 * until finishing nat/sit flush. inode->i_blocks can be updated.
 	 */
-	down_write(&sbi->node_change);
+	f2fs_down_write(&sbi->node_change);
 
 	if (get_pages(sbi, F2FS_DIRTY_IMETA)) {
-		up_write(&sbi->node_change);
+		f2fs_up_write(&sbi->node_change);
 		f2fs_unlock_all(sbi);
 		err = f2fs_sync_inode_meta(sbi);
 		if (err)
@@ -1241,15 +1241,15 @@ retry_flush_dents:
 	}
 
 retry_flush_nodes:
-	down_write(&sbi->node_write);
+	f2fs_down_write(&sbi->node_write);
 
 	if (get_pages(sbi, F2FS_DIRTY_NODES)) {
-		up_write(&sbi->node_write);
+		f2fs_up_write(&sbi->node_write);
 		atomic_inc(&sbi->wb_sync_req[NODE]);
 		err = f2fs_sync_node_pages(sbi, &wbc, false, FS_CP_NODE_IO);
 		atomic_dec(&sbi->wb_sync_req[NODE]);
 		if (err) {
-			up_write(&sbi->node_change);
+			f2fs_up_write(&sbi->node_change);
 			f2fs_unlock_all(sbi);
 			return err;
 		}
@@ -1262,13 +1262,13 @@ retry_flush_nodes:
 	 * dirty node blocks and some checkpoint values by block allocation.
 	 */
 	__prepare_cp_block(sbi);
-	up_write(&sbi->node_change);
+	f2fs_up_write(&sbi->node_change);
 	return err;
 }
 
 static void unblock_operations(struct f2fs_sb_info *sbi)
 {
-	up_write(&sbi->node_write);
+	f2fs_up_write(&sbi->node_write);
 	f2fs_unlock_all(sbi);
 }
 
@@ -1612,7 +1612,7 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 		f2fs_warn(sbi, "Start checkpoint disabled!");
 	}
 	if (cpc->reason != CP_RESIZE)
-		down_write(&sbi->cp_global_sem);
+		f2fs_down_write(&sbi->cp_global_sem);
 
 	if (!is_sbi_flag_set(sbi, SBI_IS_DIRTY) &&
 		((cpc->reason & CP_FASTBOOT) || (cpc->reason & CP_SYNC) ||
@@ -1693,7 +1693,7 @@ stop:
 	trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish checkpoint");
 out:
 	if (cpc->reason != CP_RESIZE)
-		up_write(&sbi->cp_global_sem);
+		f2fs_up_write(&sbi->cp_global_sem);
 	return err;
 }
 
@@ -1741,9 +1741,9 @@ static int __write_checkpoint_sync(struct f2fs_sb_info *sbi)
 	struct cp_control cpc = { .reason = CP_SYNC, };
 	int err;
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	err = f2fs_write_checkpoint(sbi, &cpc);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 
 	return err;
 }
@@ -1831,9 +1831,9 @@ int f2fs_issue_checkpoint(struct f2fs_sb_info *sbi)
 	if (!test_opt(sbi, MERGE_CHECKPOINT) || cpc.reason != CP_SYNC) {
 		int ret;
 
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 		ret = f2fs_write_checkpoint(sbi, &cpc);
-		up_write(&sbi->gc_lock);
+		f2fs_up_write(&sbi->gc_lock);
 
 		return ret;
 	}
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index f81e7a4a6a198..62105c1230648 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -1266,7 +1266,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
 		 * checkpoint. This can only happen to quota writes which can cause
 		 * the below discard race condition.
 		 */
-		down_read(&sbi->node_write);
+		f2fs_down_read(&sbi->node_write);
 	} else if (!f2fs_trylock_op(sbi)) {
 		goto out_free;
 	}
@@ -1383,7 +1383,7 @@ unlock_continue:
 
 	f2fs_put_dnode(&dn);
 	if (IS_NOQUOTA(inode))
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 	else
 		f2fs_unlock_op(sbi);
 
@@ -1409,7 +1409,7 @@ out_put_dnode:
 	f2fs_put_dnode(&dn);
 out_unlock_op:
 	if (IS_NOQUOTA(inode))
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 	else
 		f2fs_unlock_op(sbi);
 out_free:
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 02ad5063f1b9f..6ff1d256daf09 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -606,7 +606,7 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
 	enum page_type btype = PAGE_TYPE_OF_BIO(type);
 	struct f2fs_bio_info *io = sbi->write_io[btype] + temp;
 
-	down_write(&io->io_rwsem);
+	f2fs_down_write(&io->io_rwsem);
 
 	/* change META to META_FLUSH in the checkpoint procedure */
 	if (type >= META_FLUSH) {
@@ -617,7 +617,7 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi,
 			io->fio.op_flags |= REQ_PREFLUSH | REQ_FUA;
 	}
 	__submit_merged_bio(io);
-	up_write(&io->io_rwsem);
+	f2fs_up_write(&io->io_rwsem);
 }
 
 static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
@@ -632,9 +632,9 @@ static void __submit_merged_write_cond(struct f2fs_sb_info *sbi,
 			enum page_type btype = PAGE_TYPE_OF_BIO(type);
 			struct f2fs_bio_info *io = sbi->write_io[btype] + temp;
 
-			down_read(&io->io_rwsem);
+			f2fs_down_read(&io->io_rwsem);
 			ret = __has_merged_page(io->bio, inode, page, ino);
-			up_read(&io->io_rwsem);
+			f2fs_up_read(&io->io_rwsem);
 		}
 		if (ret)
 			__f2fs_submit_merged_write(sbi, type, temp);
@@ -758,9 +758,9 @@ static void add_bio_entry(struct f2fs_sb_info *sbi, struct bio *bio,
 	if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE)
 		f2fs_bug_on(sbi, 1);
 
-	down_write(&io->bio_list_lock);
+	f2fs_down_write(&io->bio_list_lock);
 	list_add_tail(&be->list, &io->bio_list);
-	up_write(&io->bio_list_lock);
+	f2fs_up_write(&io->bio_list_lock);
 }
 
 static void del_bio_entry(struct bio_entry *be)
@@ -782,7 +782,7 @@ static int add_ipu_page(struct f2fs_io_info *fio, struct bio **bio,
 		struct list_head *head = &io->bio_list;
 		struct bio_entry *be;
 
-		down_write(&io->bio_list_lock);
+		f2fs_down_write(&io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (be->bio != *bio)
 				continue;
@@ -806,7 +806,7 @@ static int add_ipu_page(struct f2fs_io_info *fio, struct bio **bio,
 			__submit_bio(sbi, *bio, DATA);
 			break;
 		}
-		up_write(&io->bio_list_lock);
+		f2fs_up_write(&io->bio_list_lock);
 	}
 
 	if (ret) {
@@ -832,7 +832,7 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 		if (list_empty(head))
 			continue;
 
-		down_read(&io->bio_list_lock);
+		f2fs_down_read(&io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (target)
 				found = (target == be->bio);
@@ -842,14 +842,14 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 			if (found)
 				break;
 		}
-		up_read(&io->bio_list_lock);
+		f2fs_up_read(&io->bio_list_lock);
 
 		if (!found)
 			continue;
 
 		found = false;
 
-		down_write(&io->bio_list_lock);
+		f2fs_down_write(&io->bio_list_lock);
 		list_for_each_entry(be, head, list) {
 			if (target)
 				found = (target == be->bio);
@@ -862,7 +862,7 @@ void f2fs_submit_merged_ipu_write(struct f2fs_sb_info *sbi,
 				break;
 			}
 		}
-		up_write(&io->bio_list_lock);
+		f2fs_up_write(&io->bio_list_lock);
 	}
 
 	if (found)
@@ -922,7 +922,7 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
 
 	f2fs_bug_on(sbi, is_read_io(fio->op));
 
-	down_write(&io->io_rwsem);
+	f2fs_down_write(&io->io_rwsem);
 next:
 	if (fio->in_list) {
 		spin_lock(&io->io_lock);
@@ -989,7 +989,7 @@ out:
 	if (is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN) ||
 				!f2fs_is_checkpoint_ready(sbi))
 		__submit_merged_bio(io);
-	up_write(&io->io_rwsem);
+	f2fs_up_write(&io->io_rwsem);
 }
 
 static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
@@ -1399,9 +1399,9 @@ void f2fs_do_map_lock(struct f2fs_sb_info *sbi, int flag, bool lock)
 {
 	if (flag == F2FS_GET_BLOCK_PRE_AIO) {
 		if (lock)
-			down_read(&sbi->node_change);
+			f2fs_down_read(&sbi->node_change);
 		else
-			up_read(&sbi->node_change);
+			f2fs_up_read(&sbi->node_change);
 	} else {
 		if (lock)
 			f2fs_lock_op(sbi);
@@ -2777,13 +2777,13 @@ write:
 		 * the below discard race condition.
 		 */
 		if (IS_NOQUOTA(inode))
-			down_read(&sbi->node_write);
+			f2fs_down_read(&sbi->node_write);
 
 		fio.need_lock = LOCK_DONE;
 		err = f2fs_do_write_data_page(&fio);
 
 		if (IS_NOQUOTA(inode))
-			up_read(&sbi->node_write);
+			f2fs_up_read(&sbi->node_write);
 
 		goto done;
 	}
@@ -3241,14 +3241,14 @@ void f2fs_write_failed(struct inode *inode, loff_t to)
 
 	/* In the fs-verity case, f2fs_end_enable_verity() does the truncate */
 	if (to > i_size && !f2fs_verity_in_progress(inode)) {
-		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 		truncate_pagecache(inode, i_size);
 		f2fs_truncate_blocks(inode, i_size, true);
 
-		up_write(&F2FS_I(inode)->i_mmap_sem);
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	}
 }
 
@@ -3766,13 +3766,13 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 	unsigned int end_sec = secidx + blkcnt / blk_per_sec;
 	int ret = 0;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	set_inode_flag(inode, FI_ALIGNED_WRITE);
 
 	for (; secidx < end_sec; secidx++) {
-		down_write(&sbi->pin_sem);
+		f2fs_down_write(&sbi->pin_sem);
 
 		f2fs_lock_op(sbi);
 		f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
@@ -3786,7 +3786,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 
 			page = f2fs_get_lock_data_page(inode, blkidx, true);
 			if (IS_ERR(page)) {
-				up_write(&sbi->pin_sem);
+				f2fs_up_write(&sbi->pin_sem);
 				ret = PTR_ERR(page);
 				goto done;
 			}
@@ -3799,7 +3799,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 
 		ret = filemap_fdatawrite(inode->i_mapping);
 
-		up_write(&sbi->pin_sem);
+		f2fs_up_write(&sbi->pin_sem);
 
 		if (ret)
 			break;
@@ -3809,8 +3809,8 @@ done:
 	clear_inode_flag(inode, FI_DO_DEFRAG);
 	clear_inode_flag(inode, FI_ALIGNED_WRITE);
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	return ret;
 }
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 11bef1b7f2510..4316fbfc50349 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -768,7 +768,7 @@ add_dentry:
 	f2fs_wait_on_page_writeback(dentry_page, DATA, true, true);
 
 	if (inode) {
-		down_write(&F2FS_I(inode)->i_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_sem);
 		page = f2fs_init_inode_metadata(inode, dir, fname, NULL);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
@@ -795,7 +795,7 @@ add_dentry:
 	f2fs_update_parent_metadata(dir, inode, current_depth);
 fail:
 	if (inode)
-		up_write(&F2FS_I(inode)->i_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_sem);
 
 	f2fs_put_page(dentry_page, 1);
 
@@ -860,7 +860,7 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
 	struct page *page;
 	int err = 0;
 
-	down_write(&F2FS_I(inode)->i_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_sem);
 	page = f2fs_init_inode_metadata(inode, dir, NULL, NULL);
 	if (IS_ERR(page)) {
 		err = PTR_ERR(page);
@@ -871,7 +871,7 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
 	clear_inode_flag(inode, FI_NEW_INODE);
 	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 fail:
-	up_write(&F2FS_I(inode)->i_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_sem);
 	return err;
 }
 
@@ -879,7 +879,7 @@ void f2fs_drop_nlink(struct inode *dir, struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 
-	down_write(&F2FS_I(inode)->i_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_sem);
 
 	if (S_ISDIR(inode->i_mode))
 		f2fs_i_links_write(dir, false);
@@ -890,7 +890,7 @@ void f2fs_drop_nlink(struct inode *dir, struct inode *inode)
 		f2fs_i_links_write(inode, false);
 		f2fs_i_size_write(inode, 0);
 	}
-	up_write(&F2FS_I(inode)->i_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_sem);
 
 	if (inode->i_nlink == 0)
 		f2fs_add_orphan_inode(inode);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index f6ef1c6c70ee9..c92962e8c0f1e 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -121,6 +121,18 @@ typedef u32 nid_t;
 
 #define COMPRESS_EXT_NUM		16
 
+/*
+ * An implementation of an rwsem that is explicitly unfair to readers. This
+ * prevents priority inversion when a low-priority reader acquires the read lock
+ * while sleeping on the write lock but the write lock is needed by
+ * higher-priority clients.
+ */
+
+struct f2fs_rwsem {
+        struct rw_semaphore internal_rwsem;
+        wait_queue_head_t read_waiters;
+};
+
 struct f2fs_mount_info {
 	unsigned int opt;
 	int write_io_size_bits;		/* Write IO size bits */
@@ -750,7 +762,7 @@ struct f2fs_inode_info {
 
 	/* Use below internally in f2fs*/
 	unsigned long flags[BITS_TO_LONGS(FI_MAX)];	/* use to pass per-file flags */
-	struct rw_semaphore i_sem;	/* protect fi info */
+	struct f2fs_rwsem i_sem;	/* protect fi info */
 	atomic_t dirty_pages;		/* # of dirty pages */
 	f2fs_hash_t chash;		/* hash value of given file name */
 	unsigned int clevel;		/* maximum level of given file name */
@@ -775,9 +787,9 @@ struct f2fs_inode_info {
 	struct extent_tree *extent_tree;	/* cached extent_tree entry */
 
 	/* avoid racing between foreground op and gc */
-	struct rw_semaphore i_gc_rwsem[2];
-	struct rw_semaphore i_mmap_sem;
-	struct rw_semaphore i_xattr_sem; /* avoid racing between reading and changing EAs */
+	struct f2fs_rwsem i_gc_rwsem[2];
+	struct f2fs_rwsem i_mmap_sem;
+	struct f2fs_rwsem i_xattr_sem; /* avoid racing between reading and changing EAs */
 
 	int i_extra_isize;		/* size of extra space located in i_addr */
 	kprojid_t i_projid;		/* id for project quota */
@@ -903,7 +915,7 @@ struct f2fs_nm_info {
 	/* NAT cache management */
 	struct radix_tree_root nat_root;/* root of the nat entry cache */
 	struct radix_tree_root nat_set_root;/* root of the nat set cache */
-	struct rw_semaphore nat_tree_lock;	/* protect nat entry tree */
+	struct f2fs_rwsem nat_tree_lock;	/* protect nat entry tree */
 	struct list_head nat_entries;	/* cached nat entry list (clean) */
 	spinlock_t nat_list_lock;	/* protect clean nat entry list */
 	unsigned int nat_cnt[MAX_NAT_STATE]; /* the # of cached nat entries */
@@ -1016,7 +1028,7 @@ struct f2fs_sm_info {
 	struct dirty_seglist_info *dirty_info;	/* dirty segment information */
 	struct curseg_info *curseg_array;	/* active segment information */
 
-	struct rw_semaphore curseg_lock;	/* for preventing curseg change */
+	struct f2fs_rwsem curseg_lock;	/* for preventing curseg change */
 
 	block_t seg0_blkaddr;		/* block address of 0'th segment */
 	block_t main_blkaddr;		/* start block address of main area */
@@ -1200,11 +1212,11 @@ struct f2fs_bio_info {
 	struct bio *bio;		/* bios to merge */
 	sector_t last_block_in_bio;	/* last block number */
 	struct f2fs_io_info fio;	/* store buffered io info. */
-	struct rw_semaphore io_rwsem;	/* blocking op for bio */
+	struct f2fs_rwsem io_rwsem;	/* blocking op for bio */
 	spinlock_t io_lock;		/* serialize DATA/NODE IOs */
 	struct list_head io_list;	/* track fios */
 	struct list_head bio_list;	/* bio entry list head */
-	struct rw_semaphore bio_list_lock;	/* lock to protect bio entry list */
+	struct f2fs_rwsem bio_list_lock;	/* lock to protect bio entry list */
 };
 
 #define FDEV(i)				(sbi->devs[i])
@@ -1570,7 +1582,7 @@ struct f2fs_sb_info {
 	struct super_block *sb;			/* pointer to VFS super block */
 	struct proc_dir_entry *s_proc;		/* proc entry */
 	struct f2fs_super_block *raw_super;	/* raw super block pointer */
-	struct rw_semaphore sb_lock;		/* lock for raw super block */
+	struct f2fs_rwsem sb_lock;		/* lock for raw super block */
 	int valid_super_block;			/* valid super block no */
 	unsigned long s_flag;				/* flags for sbi */
 	struct mutex writepages;		/* mutex for writepages() */
@@ -1590,7 +1602,7 @@ struct f2fs_sb_info {
 	/* for bio operations */
 	struct f2fs_bio_info *write_io[NR_PAGE_TYPE];	/* for write bios */
 	/* keep migration IO order for LFS mode */
-	struct rw_semaphore io_order_lock;
+	struct f2fs_rwsem io_order_lock;
 	mempool_t *write_io_dummy;		/* Dummy pages */
 
 	/* for checkpoint */
@@ -1598,10 +1610,10 @@ struct f2fs_sb_info {
 	int cur_cp_pack;			/* remain current cp pack */
 	spinlock_t cp_lock;			/* for flag in ckpt */
 	struct inode *meta_inode;		/* cache meta blocks */
-	struct rw_semaphore cp_global_sem;	/* checkpoint procedure lock */
-	struct rw_semaphore cp_rwsem;		/* blocking FS operations */
-	struct rw_semaphore node_write;		/* locking node writes */
-	struct rw_semaphore node_change;	/* locking node change */
+	struct f2fs_rwsem cp_global_sem;	/* checkpoint procedure lock */
+	struct f2fs_rwsem cp_rwsem;		/* blocking FS operations */
+	struct f2fs_rwsem node_write;		/* locking node writes */
+	struct f2fs_rwsem node_change;	/* locking node change */
 	wait_queue_head_t cp_wait;
 	unsigned long last_time[MAX_TIME];	/* to store time in jiffies */
 	long interval_time[MAX_TIME];		/* to store thresholds */
@@ -1661,7 +1673,7 @@ struct f2fs_sb_info {
 	block_t unusable_block_count;		/* # of blocks saved by last cp */
 
 	unsigned int nquota_files;		/* # of quota sysfile */
-	struct rw_semaphore quota_sem;		/* blocking cp for flags */
+	struct f2fs_rwsem quota_sem;		/* blocking cp for flags */
 
 	/* # of pages, see count_type */
 	atomic_t nr_pages[NR_COUNT_TYPE];
@@ -1677,7 +1689,7 @@ struct f2fs_sb_info {
 	struct f2fs_mount_info mount_opt;	/* mount options */
 
 	/* for cleaning operations */
-	struct rw_semaphore gc_lock;		/*
+	struct f2fs_rwsem gc_lock;		/*
 						 * semaphore for GC, avoid
 						 * race between GC and GC or CP
 						 */
@@ -1697,7 +1709,7 @@ struct f2fs_sb_info {
 
 	/* threshold for gc trials on pinned files */
 	u64 gc_pin_file_threshold;
-	struct rw_semaphore pin_sem;
+	struct f2fs_rwsem pin_sem;
 
 	/* maximum # of trials to find a victim segment for SSR and GC */
 	unsigned int max_victim_search;
@@ -2091,9 +2103,65 @@ static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
 	spin_unlock_irqrestore(&sbi->cp_lock, flags);
 }
 
+static inline void init_f2fs_rwsem(struct f2fs_rwsem *sem)
+{
+	init_rwsem(&sem->internal_rwsem);
+	init_waitqueue_head(&sem->read_waiters);
+}
+
+static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
+{
+	return rwsem_is_locked(&sem->internal_rwsem);
+}
+
+static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
+{
+	return rwsem_is_contended(&sem->internal_rwsem);
+}
+
+static inline void f2fs_down_read(struct f2fs_rwsem *sem)
+{
+	wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
+}
+
+static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
+{
+	return down_read_trylock(&sem->internal_rwsem);
+}
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static inline void f2fs_down_read_nested(struct f2fs_rwsem *sem, int subclass)
+{
+	down_read_nested(&sem->internal_rwsem, subclass);
+}
+#else
+#define f2fs_down_read_nested(sem, subclass) f2fs_down_read(sem)
+#endif
+
+static inline void f2fs_up_read(struct f2fs_rwsem *sem)
+{
+	up_read(&sem->internal_rwsem);
+}
+
+static inline void f2fs_down_write(struct f2fs_rwsem *sem)
+{
+	down_write(&sem->internal_rwsem);
+}
+
+static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
+{
+	return down_write_trylock(&sem->internal_rwsem);
+}
+
+static inline void f2fs_up_write(struct f2fs_rwsem *sem)
+{
+	up_write(&sem->internal_rwsem);
+	wake_up_all(&sem->read_waiters);
+}
+
 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 {
-	down_read(&sbi->cp_rwsem);
+	f2fs_down_read(&sbi->cp_rwsem);
 }
 
 static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
@@ -2102,22 +2170,22 @@ static inline int f2fs_trylock_op(struct f2fs_sb_info *sbi)
 		f2fs_show_injection_info(sbi, FAULT_LOCK_OP);
 		return 0;
 	}
-	return down_read_trylock(&sbi->cp_rwsem);
+	return f2fs_down_read_trylock(&sbi->cp_rwsem);
 }
 
 static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
 {
-	up_read(&sbi->cp_rwsem);
+	f2fs_up_read(&sbi->cp_rwsem);
 }
 
 static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
 {
-	down_write(&sbi->cp_rwsem);
+	f2fs_down_write(&sbi->cp_rwsem);
 }
 
 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
 {
-	up_write(&sbi->cp_rwsem);
+	f2fs_up_write(&sbi->cp_rwsem);
 }
 
 static inline int __get_cp_reason(struct f2fs_sb_info *sbi)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1618d8b0c4eee..45d865b1e1961 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -41,9 +41,9 @@ static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
 	struct inode *inode = file_inode(vmf->vma->vm_file);
 	vm_fault_t ret;
 
-	down_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_mmap_sem);
 	ret = filemap_fault(vmf);
-	up_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_mmap_sem);
 
 	if (!ret)
 		f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO,
@@ -104,7 +104,7 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
 	f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
 
 	file_update_time(vmf->vma->vm_file);
-	down_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_mmap_sem);
 	lock_page(page);
 	if (unlikely(page->mapping != inode->i_mapping ||
 			page_offset(page) > i_size_read(inode) ||
@@ -162,7 +162,7 @@ static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
 
 	trace_f2fs_vm_page_mkwrite(page, DATA);
 out_sem:
-	up_read(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_mmap_sem);
 
 	sb_end_pagefault(inode->i_sb);
 err:
@@ -243,13 +243,13 @@ static void try_to_fix_pino(struct inode *inode)
 	struct f2fs_inode_info *fi = F2FS_I(inode);
 	nid_t pino;
 
-	down_write(&fi->i_sem);
+	f2fs_down_write(&fi->i_sem);
 	if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
 			get_parent_ino(inode, &pino)) {
 		f2fs_i_pino_write(inode, pino);
 		file_got_pino(inode);
 	}
-	up_write(&fi->i_sem);
+	f2fs_up_write(&fi->i_sem);
 }
 
 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
@@ -324,9 +324,9 @@ go_write:
 	 * Both of fdatasync() and fsync() are able to be recovered from
 	 * sudden-power-off.
 	 */
-	down_read(&F2FS_I(inode)->i_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_sem);
 	cp_reason = need_do_checkpoint(inode);
-	up_read(&F2FS_I(inode)->i_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_sem);
 
 	if (cp_reason) {
 		/* all the dirty node pages should be flushed for POR */
@@ -962,8 +962,8 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 				return err;
 		}
 
-		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 		truncate_setsize(inode, attr->ia_size);
 
@@ -973,8 +973,8 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 		 * do not trim all blocks after i_size if target size is
 		 * larger than i_size.
 		 */
-		up_write(&F2FS_I(inode)->i_mmap_sem);
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		if (err)
 			return err;
 
@@ -1114,8 +1114,8 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 			blk_start = (loff_t)pg_start << PAGE_SHIFT;
 			blk_end = (loff_t)pg_end << PAGE_SHIFT;
 
-			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-			down_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 			truncate_pagecache_range(inode, blk_start, blk_end - 1);
 
@@ -1123,8 +1123,8 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 			ret = f2fs_truncate_hole(inode, pg_start, pg_end);
 			f2fs_unlock_op(sbi);
 
-			up_write(&F2FS_I(inode)->i_mmap_sem);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		}
 	}
 
@@ -1357,8 +1357,8 @@ static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
 	f2fs_balance_fs(sbi, true);
 
 	/* avoid gc operation during block exchange */
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	f2fs_lock_op(sbi);
 	f2fs_drop_extent_tree(inode);
@@ -1366,8 +1366,8 @@ static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
 	ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
 	f2fs_unlock_op(sbi);
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	return ret;
 }
 
@@ -1397,13 +1397,13 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
 		return ret;
 
 	/* write out all moved pages, if possible */
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
 	truncate_pagecache(inode, offset);
 
 	new_size = i_size_read(inode) - len;
 	ret = f2fs_truncate_blocks(inode, new_size, true);
-	up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
 	if (!ret)
 		f2fs_i_size_write(inode, new_size);
 	return ret;
@@ -1502,8 +1502,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			unsigned int end_offset;
 			pgoff_t end;
 
-			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-			down_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 			truncate_pagecache_range(inode,
 				(loff_t)index << PAGE_SHIFT,
@@ -1515,8 +1515,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
 			if (ret) {
 				f2fs_unlock_op(sbi);
-				up_write(&F2FS_I(inode)->i_mmap_sem);
-				up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+				f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+				f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 				goto out;
 			}
 
@@ -1527,8 +1527,8 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
 			f2fs_put_dnode(&dn);
 
 			f2fs_unlock_op(sbi);
-			up_write(&F2FS_I(inode)->i_mmap_sem);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+			f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 			f2fs_balance_fs(sbi, dn.node_changed);
 
@@ -1584,9 +1584,9 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 
 	f2fs_balance_fs(sbi, true);
 
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
-	up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
 	if (ret)
 		return ret;
 
@@ -1601,8 +1601,8 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 	idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
 	/* avoid gc operation during block exchange */
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	truncate_pagecache(inode, offset);
 
 	while (!ret && idx > pg_start) {
@@ -1618,14 +1618,14 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 					idx + delta, nr, false);
 		f2fs_unlock_op(sbi);
 	}
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	/* write out all moved pages, if possible */
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 	filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
 	truncate_pagecache(inode, offset);
-	up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
 
 	if (!ret)
 		f2fs_i_size_write(inode, new_size);
@@ -1675,13 +1675,13 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 next_alloc:
 		if (has_not_enough_free_secs(sbi, 0,
 			GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
 			if (err && err != -ENODATA && err != -EAGAIN)
 				goto out_err;
 		}
 
-		down_write(&sbi->pin_sem);
+		f2fs_down_write(&sbi->pin_sem);
 
 		f2fs_lock_op(sbi);
 		f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
@@ -1691,7 +1691,7 @@ next_alloc:
 		err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
 		file_dont_truncate(inode);
 
-		up_write(&sbi->pin_sem);
+		f2fs_up_write(&sbi->pin_sem);
 
 		expanded += map.m_len;
 		sec_len -= map.m_len;
@@ -2079,7 +2079,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 	if (ret)
 		goto out;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	/*
 	 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
@@ -2090,7 +2090,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 			  inode->i_ino, get_dirty_pages(inode));
 	ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
 	if (ret) {
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 		goto out;
 	}
 
@@ -2103,7 +2103,7 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 	/* add inode in inmem_list first and set atomic_file */
 	set_inode_flag(inode, FI_ATOMIC_FILE);
 	clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
 	F2FS_I(inode)->inmem_task = current;
@@ -2410,7 +2410,7 @@ static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
 	if (err)
 		return err;
 
-	down_write(&sbi->sb_lock);
+	f2fs_down_write(&sbi->sb_lock);
 
 	if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
 		goto got_it;
@@ -2429,7 +2429,7 @@ got_it:
 									16))
 		err = -EFAULT;
 out_err:
-	up_write(&sbi->sb_lock);
+	f2fs_up_write(&sbi->sb_lock);
 	mnt_drop_write_file(filp);
 	return err;
 }
@@ -2506,12 +2506,12 @@ static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
 		return ret;
 
 	if (!sync) {
-		if (!down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
 	} else {
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 	}
 
 	ret = f2fs_gc(sbi, sync, true, false, NULL_SEGNO);
@@ -2542,12 +2542,12 @@ static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)
 
 do_more:
 	if (!range->sync) {
-		if (!down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
 	} else {
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 	}
 
 	ret = f2fs_gc(sbi, range->sync, true, false,
@@ -2879,10 +2879,10 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 
 	f2fs_balance_fs(sbi, true);
 
-	down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
 	if (src != dst) {
 		ret = -EBUSY;
-		if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
+		if (!f2fs_down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
 			goto out_src;
 	}
 
@@ -2900,9 +2900,9 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
 	f2fs_unlock_op(sbi);
 
 	if (src != dst)
-		up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
 out_src:
-	up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
 out_unlock:
 	if (src != dst)
 		inode_unlock(dst);
@@ -2997,7 +2997,7 @@ static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
 	end_segno = min(start_segno + range.segments, dev_end_segno);
 
 	while (start_segno < end_segno) {
-		if (!down_write_trylock(&sbi->gc_lock)) {
+		if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			ret = -EBUSY;
 			goto out;
 		}
@@ -3343,9 +3343,9 @@ int f2fs_precache_extents(struct inode *inode)
 	while (map.m_lblk < end) {
 		map.m_len = end - map.m_lblk;
 
-		down_write(&fi->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
 		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
-		up_write(&fi->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
 		if (err)
 			return err;
 
@@ -3422,11 +3422,11 @@ static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
 	if (!vbuf)
 		return -ENOMEM;
 
-	down_read(&sbi->sb_lock);
+	f2fs_down_read(&sbi->sb_lock);
 	count = utf16s_to_utf8s(sbi->raw_super->volume_name,
 			ARRAY_SIZE(sbi->raw_super->volume_name),
 			UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
-	up_read(&sbi->sb_lock);
+	f2fs_up_read(&sbi->sb_lock);
 
 	if (copy_to_user((char __user *)arg, vbuf,
 				min(FSLABEL_MAX, count)))
@@ -3454,7 +3454,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
 	if (err)
 		goto out;
 
-	down_write(&sbi->sb_lock);
+	f2fs_down_write(&sbi->sb_lock);
 
 	memset(sbi->raw_super->volume_name, 0,
 			sizeof(sbi->raw_super->volume_name));
@@ -3464,7 +3464,7 @@ static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
 
 	err = f2fs_commit_super(sbi, false);
 
-	up_write(&sbi->sb_lock);
+	f2fs_up_write(&sbi->sb_lock);
 
 	mnt_drop_write_file(filp);
 out:
@@ -3590,8 +3590,8 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
 	if (!atomic_read(&F2FS_I(inode)->i_compr_blocks))
 		goto out;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
@@ -3626,8 +3626,8 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
 		released_blocks += ret;
 	}
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 out:
 	inode_unlock(inode);
 
@@ -3743,8 +3743,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
 		goto unlock_inode;
 	}
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
 
@@ -3779,8 +3779,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
 		reserved_blocks += ret;
 	}
 
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 
 	if (ret >= 0) {
 		clear_inode_flag(inode, FI_COMPRESS_RELEASED);
@@ -3898,8 +3898,8 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
 	if (ret)
 		goto err;
 
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-	down_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	ret = filemap_write_and_wait_range(mapping, range.start,
 			to_end ? LLONG_MAX : end_addr - 1);
@@ -3986,8 +3986,8 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
 		ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
 				prev_block, len, range.flags);
 out:
-	up_write(&F2FS_I(inode)->i_mmap_sem);
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 err:
 	inode_unlock(inode);
 	file_end_write(filp);
@@ -4437,12 +4437,12 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	}
 
 	if (iocb->ki_flags & IOCB_NOWAIT) {
-		if (!down_read_trylock(&fi->i_gc_rwsem[READ])) {
+		if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
 			ret = -EAGAIN;
 			goto out;
 		}
 	} else {
-		down_read(&fi->i_gc_rwsem[READ]);
+		f2fs_down_read(&fi->i_gc_rwsem[READ]);
 	}
 
 	/*
@@ -4461,7 +4461,7 @@ static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		ret = iomap_dio_complete(dio);
 	}
 
-	up_read(&fi->i_gc_rwsem[READ]);
+	f2fs_up_read(&fi->i_gc_rwsem[READ]);
 
 	file_accessed(file);
 out:
@@ -4655,12 +4655,12 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 			goto out;
 		}
 
-		if (!down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
+		if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
 			ret = -EAGAIN;
 			goto out;
 		}
-		if (do_opu && !down_read_trylock(&fi->i_gc_rwsem[READ])) {
-			up_read(&fi->i_gc_rwsem[WRITE]);
+		if (do_opu && !f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
+			f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
 			ret = -EAGAIN;
 			goto out;
 		}
@@ -4669,9 +4669,9 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 		if (ret)
 			goto out;
 
-		down_read(&fi->i_gc_rwsem[WRITE]);
+		f2fs_down_read(&fi->i_gc_rwsem[WRITE]);
 		if (do_opu)
-			down_read(&fi->i_gc_rwsem[READ]);
+			f2fs_down_read(&fi->i_gc_rwsem[READ]);
 	}
 	if (whint_mode == WHINT_MODE_OFF)
 		iocb->ki_hint = WRITE_LIFE_NOT_SET;
@@ -4701,8 +4701,8 @@ static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
 	if (whint_mode == WHINT_MODE_OFF)
 		iocb->ki_hint = hint;
 	if (do_opu)
-		up_read(&fi->i_gc_rwsem[READ]);
-	up_read(&fi->i_gc_rwsem[WRITE]);
+		f2fs_up_read(&fi->i_gc_rwsem[READ]);
+	f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
 
 	if (ret < 0)
 		goto out;
@@ -4805,12 +4805,12 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 
 	/* Don't leave any preallocated blocks around past i_size. */
 	if (preallocated && i_size_read(inode) < target_size) {
-		down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
-		down_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 		if (!f2fs_truncate(inode))
 			file_dont_truncate(inode);
-		up_write(&F2FS_I(inode)->i_mmap_sem);
-		up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+		f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	} else {
 		file_dont_truncate(inode);
 	}
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index a6accec60d048..7a486bbf9c07f 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -105,21 +105,21 @@ static int gc_thread_func(void *data)
 			spin_unlock(&sbi->gc_urgent_high_lock);
 
 			wait_ms = gc_th->urgent_sleep_time;
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			goto do_gc;
 		}
 
 		if (foreground) {
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			goto do_gc;
-		} else if (!down_write_trylock(&sbi->gc_lock)) {
+		} else if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
 			stat_other_skip_bggc_count(sbi);
 			goto next;
 		}
 
 		if (!is_idle(sbi, GC_TIME)) {
 			increase_sleep_time(gc_th, &wait_ms);
-			up_write(&sbi->gc_lock);
+			f2fs_up_write(&sbi->gc_lock);
 			stat_io_skip_bggc_count(sbi);
 			goto next;
 		}
@@ -1230,7 +1230,7 @@ static int move_data_block(struct inode *inode, block_t bidx,
 	fio.new_blkaddr = fio.old_blkaddr = dn.data_blkaddr;
 
 	if (lfs_mode)
-		down_write(&fio.sbi->io_order_lock);
+		f2fs_down_write(&fio.sbi->io_order_lock);
 
 	mpage = f2fs_grab_cache_page(META_MAPPING(fio.sbi),
 					fio.old_blkaddr, false);
@@ -1316,7 +1316,7 @@ recover_block:
 							true, true, true);
 up_out:
 	if (lfs_mode)
-		up_write(&fio.sbi->io_order_lock);
+		f2fs_up_write(&fio.sbi->io_order_lock);
 put_out:
 	f2fs_put_dnode(&dn);
 out:
@@ -1476,7 +1476,7 @@ next_step:
 					special_file(inode->i_mode))
 				continue;
 
-			if (!down_write_trylock(
+			if (!f2fs_down_write_trylock(
 				&F2FS_I(inode)->i_gc_rwsem[WRITE])) {
 				iput(inode);
 				sbi->skipped_gc_rwsem++;
@@ -1489,7 +1489,7 @@ next_step:
 			if (f2fs_post_read_required(inode)) {
 				int err = ra_data_block(inode, start_bidx);
 
-				up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+				f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 				if (err) {
 					iput(inode);
 					continue;
@@ -1500,7 +1500,7 @@ next_step:
 
 			data_page = f2fs_get_read_data_page(inode,
 						start_bidx, REQ_RAHEAD, true);
-			up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+			f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 			if (IS_ERR(data_page)) {
 				iput(inode);
 				continue;
@@ -1519,14 +1519,14 @@ next_step:
 			int err;
 
 			if (S_ISREG(inode->i_mode)) {
-				if (!down_write_trylock(&fi->i_gc_rwsem[READ])) {
+				if (!f2fs_down_write_trylock(&fi->i_gc_rwsem[READ])) {
 					sbi->skipped_gc_rwsem++;
 					continue;
 				}
-				if (!down_write_trylock(
+				if (!f2fs_down_write_trylock(
 						&fi->i_gc_rwsem[WRITE])) {
 					sbi->skipped_gc_rwsem++;
-					up_write(&fi->i_gc_rwsem[READ]);
+					f2fs_up_write(&fi->i_gc_rwsem[READ]);
 					continue;
 				}
 				locked = true;
@@ -1549,8 +1549,8 @@ next_step:
 				submitted++;
 
 			if (locked) {
-				up_write(&fi->i_gc_rwsem[WRITE]);
-				up_write(&fi->i_gc_rwsem[READ]);
+				f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
+				f2fs_up_write(&fi->i_gc_rwsem[READ]);
 			}
 
 			stat_inc_data_blk_count(sbi, 1, gc_type);
@@ -1808,7 +1808,7 @@ stop:
 				reserved_segments(sbi),
 				prefree_segments(sbi));
 
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 
 	put_gc_inode(&gc_list);
 
@@ -1937,7 +1937,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
 	long long block_count;
 	int segs = secs * sbi->segs_per_sec;
 
-	down_write(&sbi->sb_lock);
+	f2fs_down_write(&sbi->sb_lock);
 
 	section_count = le32_to_cpu(raw_sb->section_count);
 	segment_count = le32_to_cpu(raw_sb->segment_count);
@@ -1958,7 +1958,7 @@ static void update_sb_metadata(struct f2fs_sb_info *sbi, int secs)
 						cpu_to_le32(dev_segs + segs);
 	}
 
-	up_write(&sbi->sb_lock);
+	f2fs_up_write(&sbi->sb_lock);
 }
 
 static void update_fs_metadata(struct f2fs_sb_info *sbi, int secs)
@@ -2032,7 +2032,7 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 	secs = div_u64(shrunk_blocks, BLKS_PER_SEC(sbi));
 
 	/* stop other GC */
-	if (!down_write_trylock(&sbi->gc_lock))
+	if (!f2fs_down_write_trylock(&sbi->gc_lock))
 		return -EAGAIN;
 
 	/* stop CP to protect MAIN_SEC in free_segment_range */
@@ -2052,15 +2052,15 @@ int f2fs_resize_fs(struct f2fs_sb_info *sbi, __u64 block_count)
 
 out_unlock:
 	f2fs_unlock_op(sbi);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 	if (err)
 		return err;
 
 	set_sbi_flag(sbi, SBI_IS_RESIZEFS);
 
 	freeze_super(sbi->sb);
-	down_write(&sbi->gc_lock);
-	down_write(&sbi->cp_global_sem);
+	f2fs_down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->cp_global_sem);
 
 	spin_lock(&sbi->stat_lock);
 	if (shrunk_blocks + valid_user_blocks(sbi) +
@@ -2105,8 +2105,8 @@ recover_out:
 		spin_unlock(&sbi->stat_lock);
 	}
 out_err:
-	up_write(&sbi->cp_global_sem);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->cp_global_sem);
+	f2fs_up_write(&sbi->gc_lock);
 	thaw_super(sbi->sb);
 	clear_sbi_flag(sbi, SBI_IS_RESIZEFS);
 	return err;
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index e0dc6adabfa82..a0386ba9d98de 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -647,7 +647,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
 	}
 
 	if (inode) {
-		down_write(&F2FS_I(inode)->i_sem);
+		f2fs_down_write(&F2FS_I(inode)->i_sem);
 		page = f2fs_init_inode_metadata(inode, dir, fname, ipage);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
@@ -676,7 +676,7 @@ int f2fs_add_inline_entry(struct inode *dir, const struct f2fs_filename *fname,
 	f2fs_update_parent_metadata(dir, inode, 0);
 fail:
 	if (inode)
-		up_write(&F2FS_I(inode)->i_sem);
+		f2fs_up_write(&F2FS_I(inode)->i_sem);
 out:
 	f2fs_put_page(ipage, 1);
 	return err;
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index b83b143382243..f978c0f91558d 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -196,7 +196,7 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
 	__u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 	int i, cold_count, hot_count;
 
-	down_read(&sbi->sb_lock);
+	f2fs_down_read(&sbi->sb_lock);
 
 	cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 	hot_count = sbi->raw_super->hot_ext_count;
@@ -206,7 +206,7 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
 			break;
 	}
 
-	up_read(&sbi->sb_lock);
+	f2fs_up_read(&sbi->sb_lock);
 
 	if (i == cold_count + hot_count)
 		return;
@@ -299,19 +299,19 @@ static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
 			(!ext_cnt && !noext_cnt))
 		return;
 
-	down_read(&sbi->sb_lock);
+	f2fs_down_read(&sbi->sb_lock);
 
 	cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 	hot_count = sbi->raw_super->hot_ext_count;
 
 	for (i = cold_count; i < cold_count + hot_count; i++) {
 		if (is_extension_exist(name, extlist[i], false)) {
-			up_read(&sbi->sb_lock);
+			f2fs_up_read(&sbi->sb_lock);
 			return;
 		}
 	}
 
-	up_read(&sbi->sb_lock);
+	f2fs_up_read(&sbi->sb_lock);
 
 	for (i = 0; i < noext_cnt; i++) {
 		if (is_extension_exist(name, noext[i], false)) {
@@ -1022,11 +1022,11 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		new_page = NULL;
 
 		new_inode->i_ctime = current_time(new_inode);
-		down_write(&F2FS_I(new_inode)->i_sem);
+		f2fs_down_write(&F2FS_I(new_inode)->i_sem);
 		if (old_dir_entry)
 			f2fs_i_links_write(new_inode, false);
 		f2fs_i_links_write(new_inode, false);
-		up_write(&F2FS_I(new_inode)->i_sem);
+		f2fs_up_write(&F2FS_I(new_inode)->i_sem);
 
 		if (!new_inode->i_nlink)
 			f2fs_add_orphan_inode(new_inode);
@@ -1047,13 +1047,13 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			f2fs_i_links_write(new_dir, true);
 	}
 
-	down_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_down_write(&F2FS_I(old_inode)->i_sem);
 	if (!old_dir_entry || whiteout)
 		file_lost_pino(old_inode);
 	else
 		/* adjust dir's i_pino to pass fsck check */
 		f2fs_i_pino_write(old_inode, new_dir->i_ino);
-	up_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_up_write(&F2FS_I(old_inode)->i_sem);
 
 	old_inode->i_ctime = current_time(old_inode);
 	f2fs_mark_inode_dirty_sync(old_inode, false);
@@ -1213,38 +1213,38 @@ static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	/* update directory entry info of old dir inode */
 	f2fs_set_link(old_dir, old_entry, old_page, new_inode);
 
-	down_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_down_write(&F2FS_I(old_inode)->i_sem);
 	if (!old_dir_entry)
 		file_lost_pino(old_inode);
 	else
 		/* adjust dir's i_pino to pass fsck check */
 		f2fs_i_pino_write(old_inode, new_dir->i_ino);
-	up_write(&F2FS_I(old_inode)->i_sem);
+	f2fs_up_write(&F2FS_I(old_inode)->i_sem);
 
 	old_dir->i_ctime = current_time(old_dir);
 	if (old_nlink) {
-		down_write(&F2FS_I(old_dir)->i_sem);
+		f2fs_down_write(&F2FS_I(old_dir)->i_sem);
 		f2fs_i_links_write(old_dir, old_nlink > 0);
-		up_write(&F2FS_I(old_dir)->i_sem);
+		f2fs_up_write(&F2FS_I(old_dir)->i_sem);
 	}
 	f2fs_mark_inode_dirty_sync(old_dir, false);
 
 	/* update directory entry info of new dir inode */
 	f2fs_set_link(new_dir, new_entry, new_page, old_inode);
 
-	down_write(&F2FS_I(new_inode)->i_sem);
+	f2fs_down_write(&F2FS_I(new_inode)->i_sem);
 	if (!new_dir_entry)
 		file_lost_pino(new_inode);
 	else
 		/* adjust dir's i_pino to pass fsck check */
 		f2fs_i_pino_write(new_inode, old_dir->i_ino);
-	up_write(&F2FS_I(new_inode)->i_sem);
+	f2fs_up_write(&F2FS_I(new_inode)->i_sem);
 
 	new_dir->i_ctime = current_time(new_dir);
 	if (new_nlink) {
-		down_write(&F2FS_I(new_dir)->i_sem);
+		f2fs_down_write(&F2FS_I(new_dir)->i_sem);
 		f2fs_i_links_write(new_dir, new_nlink > 0);
-		up_write(&F2FS_I(new_dir)->i_sem);
+		f2fs_up_write(&F2FS_I(new_dir)->i_sem);
 	}
 	f2fs_mark_inode_dirty_sync(new_dir, false);
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index e0b5eb28d3839..6ce0d7e92cac2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -382,14 +382,14 @@ int f2fs_need_dentry_mark(struct f2fs_sb_info *sbi, nid_t nid)
 	struct nat_entry *e;
 	bool need = false;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e) {
 		if (!get_nat_flag(e, IS_CHECKPOINTED) &&
 				!get_nat_flag(e, HAS_FSYNCED_INODE))
 			need = true;
 	}
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 	return need;
 }
 
@@ -399,11 +399,11 @@ bool f2fs_is_checkpointed_node(struct f2fs_sb_info *sbi, nid_t nid)
 	struct nat_entry *e;
 	bool is_cp = true;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e && !get_nat_flag(e, IS_CHECKPOINTED))
 		is_cp = false;
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 	return is_cp;
 }
 
@@ -413,13 +413,13 @@ bool f2fs_need_inode_block_update(struct f2fs_sb_info *sbi, nid_t ino)
 	struct nat_entry *e;
 	bool need_update = true;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, ino);
 	if (e && get_nat_flag(e, HAS_LAST_FSYNC) &&
 			(get_nat_flag(e, IS_CHECKPOINTED) ||
 			 get_nat_flag(e, HAS_FSYNCED_INODE)))
 		need_update = false;
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 	return need_update;
 }
 
@@ -431,14 +431,14 @@ static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
 	struct nat_entry *new, *e;
 
 	/* Let's mitigate lock contention of nat_tree_lock during checkpoint */
-	if (rwsem_is_locked(&sbi->cp_global_sem))
+	if (f2fs_rwsem_is_locked(&sbi->cp_global_sem))
 		return;
 
 	new = __alloc_nat_entry(sbi, nid, false);
 	if (!new)
 		return;
 
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (!e)
 		e = __init_nat_entry(nm_i, new, ne, false);
@@ -447,7 +447,7 @@ static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
 				nat_get_blkaddr(e) !=
 					le32_to_cpu(ne->block_addr) ||
 				nat_get_version(e) != ne->version);
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 	if (e != new)
 		__free_nat_entry(new);
 }
@@ -459,7 +459,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
 	struct nat_entry *e;
 	struct nat_entry *new = __alloc_nat_entry(sbi, ni->nid, true);
 
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, ni->nid);
 	if (!e) {
 		e = __init_nat_entry(nm_i, new, NULL, true);
@@ -508,7 +508,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
 			set_nat_flag(e, HAS_FSYNCED_INODE, true);
 		set_nat_flag(e, HAS_LAST_FSYNC, fsync_done);
 	}
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 }
 
 int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
@@ -516,7 +516,7 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	int nr = nr_shrink;
 
-	if (!down_write_trylock(&nm_i->nat_tree_lock))
+	if (!f2fs_down_write_trylock(&nm_i->nat_tree_lock))
 		return 0;
 
 	spin_lock(&nm_i->nat_list_lock);
@@ -538,7 +538,7 @@ int f2fs_try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 	}
 	spin_unlock(&nm_i->nat_list_lock);
 
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 	return nr - nr_shrink;
 }
 
@@ -560,13 +560,13 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
 	ni->nid = nid;
 retry:
 	/* Check nat cache */
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	e = __lookup_nat_cache(nm_i, nid);
 	if (e) {
 		ni->ino = nat_get_ino(e);
 		ni->blk_addr = nat_get_blkaddr(e);
 		ni->version = nat_get_version(e);
-		up_read(&nm_i->nat_tree_lock);
+		f2fs_up_read(&nm_i->nat_tree_lock);
 		return 0;
 	}
 
@@ -576,11 +576,11 @@ retry:
 	 * nat_tree_lock. Therefore, we should retry, if we failed to grab here
 	 * while not bothering checkpoint.
 	 */
-	if (!rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) {
+	if (!f2fs_rwsem_is_locked(&sbi->cp_global_sem) || checkpoint_context) {
 		down_read(&curseg->journal_rwsem);
-	} else if (rwsem_is_contended(&nm_i->nat_tree_lock) ||
+	} else if (f2fs_rwsem_is_contended(&nm_i->nat_tree_lock) ||
 				!down_read_trylock(&curseg->journal_rwsem)) {
-		up_read(&nm_i->nat_tree_lock);
+		f2fs_up_read(&nm_i->nat_tree_lock);
 		goto retry;
 	}
 
@@ -589,15 +589,15 @@ retry:
 		ne = nat_in_journal(journal, i);
 		node_info_from_raw_nat(ni, &ne);
 	}
-	up_read(&curseg->journal_rwsem);
+        up_read(&curseg->journal_rwsem);
 	if (i >= 0) {
-		up_read(&nm_i->nat_tree_lock);
+		f2fs_up_read(&nm_i->nat_tree_lock);
 		goto cache;
 	}
 
 	/* Fill node_info from nat page */
 	index = current_nat_addr(sbi, nid);
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 
 	page = f2fs_get_meta_page(sbi, index);
 	if (IS_ERR(page))
@@ -1609,17 +1609,17 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 		goto redirty_out;
 
 	if (wbc->for_reclaim) {
-		if (!down_read_trylock(&sbi->node_write))
+		if (!f2fs_down_read_trylock(&sbi->node_write))
 			goto redirty_out;
 	} else {
-		down_read(&sbi->node_write);
+		f2fs_down_read(&sbi->node_write);
 	}
 
 	/* This page is already truncated */
 	if (unlikely(ni.blk_addr == NULL_ADDR)) {
 		ClearPageUptodate(page);
 		dec_page_count(sbi, F2FS_DIRTY_NODES);
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 		unlock_page(page);
 		return 0;
 	}
@@ -1627,7 +1627,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	if (__is_valid_data_blkaddr(ni.blk_addr) &&
 		!f2fs_is_valid_blkaddr(sbi, ni.blk_addr,
 					DATA_GENERIC_ENHANCE)) {
-		up_read(&sbi->node_write);
+		f2fs_up_read(&sbi->node_write);
 		goto redirty_out;
 	}
 
@@ -1648,7 +1648,7 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	f2fs_do_write_node_page(nid, &fio);
 	set_node_addr(sbi, &ni, fio.new_blkaddr, is_fsync_dnode(page));
 	dec_page_count(sbi, F2FS_DIRTY_NODES);
-	up_read(&sbi->node_write);
+	f2fs_up_read(&sbi->node_write);
 
 	if (wbc->for_reclaim) {
 		f2fs_submit_merged_write_cond(sbi, NULL, page, 0, NODE);
@@ -2225,14 +2225,14 @@ bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi)
 	unsigned int i;
 	bool ret = true;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 	for (i = 0; i < nm_i->nat_blocks; i++) {
 		if (!test_bit_le(i, nm_i->nat_block_bitmap)) {
 			ret = false;
 			break;
 		}
 	}
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 
 	return ret;
 }
@@ -2415,7 +2415,7 @@ static void scan_free_nid_bits(struct f2fs_sb_info *sbi)
 	unsigned int i, idx;
 	nid_t nid;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 
 	for (i = 0; i < nm_i->nat_blocks; i++) {
 		if (!test_bit_le(i, nm_i->nat_block_bitmap))
@@ -2438,7 +2438,7 @@ static void scan_free_nid_bits(struct f2fs_sb_info *sbi)
 out:
 	scan_curseg_cache(sbi);
 
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 }
 
 static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
@@ -2473,7 +2473,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 	f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nid), FREE_NID_PAGES,
 							META_NAT, true);
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 
 	while (1) {
 		if (!test_bit_le(NAT_BLOCK_OFFSET(nid),
@@ -2488,7 +2488,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 			}
 
 			if (ret) {
-				up_read(&nm_i->nat_tree_lock);
+				f2fs_up_read(&nm_i->nat_tree_lock);
 				f2fs_err(sbi, "NAT is corrupt, run fsck to fix it");
 				return ret;
 			}
@@ -2508,7 +2508,7 @@ static int __f2fs_build_free_nids(struct f2fs_sb_info *sbi,
 	/* find free nids from current sum_pages */
 	scan_curseg_cache(sbi);
 
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 
 	f2fs_ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid),
 					nm_i->ra_nid_pages, META_NAT, false);
@@ -2953,7 +2953,7 @@ void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	unsigned int nat_ofs;
 
-	down_read(&nm_i->nat_tree_lock);
+	f2fs_down_read(&nm_i->nat_tree_lock);
 
 	for (nat_ofs = 0; nat_ofs < nm_i->nat_blocks; nat_ofs++) {
 		unsigned int valid = 0, nid_ofs = 0;
@@ -2973,7 +2973,7 @@ void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi)
 		__update_nat_bits(nm_i, nat_ofs, valid);
 	}
 
-	up_read(&nm_i->nat_tree_lock);
+	f2fs_up_read(&nm_i->nat_tree_lock);
 }
 
 static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
@@ -3071,15 +3071,15 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 	 * nat_cnt[DIRTY_NAT].
 	 */
 	if (cpc->reason & CP_UMOUNT) {
-		down_write(&nm_i->nat_tree_lock);
+		f2fs_down_write(&nm_i->nat_tree_lock);
 		remove_nats_in_journal(sbi);
-		up_write(&nm_i->nat_tree_lock);
+		f2fs_up_write(&nm_i->nat_tree_lock);
 	}
 
 	if (!nm_i->nat_cnt[DIRTY_NAT])
 		return 0;
 
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 
 	/*
 	 * if there are no enough space in journal to store dirty nat
@@ -3108,7 +3108,7 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 			break;
 	}
 
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 	/* Allow dirty nats by node block allocation in write_begin */
 
 	return err;
@@ -3228,7 +3228,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
 
 	mutex_init(&nm_i->build_lock);
 	spin_lock_init(&nm_i->nid_list_lock);
-	init_rwsem(&nm_i->nat_tree_lock);
+	init_f2fs_rwsem(&nm_i->nat_tree_lock);
 
 	nm_i->next_scan_nid = le32_to_cpu(sbi->ckpt->next_free_nid);
 	nm_i->bitmap_size = __bitmap_size(sbi, NAT_BITMAP);
@@ -3334,7 +3334,7 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
 	spin_unlock(&nm_i->nid_list_lock);
 
 	/* destroy nat cache */
-	down_write(&nm_i->nat_tree_lock);
+	f2fs_down_write(&nm_i->nat_tree_lock);
 	while ((found = __gang_lookup_nat_cache(nm_i,
 					nid, NATVEC_SIZE, natvec))) {
 		unsigned idx;
@@ -3364,7 +3364,7 @@ void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi)
 			kmem_cache_free(nat_entry_set_slab, setvec[idx]);
 		}
 	}
-	up_write(&nm_i->nat_tree_lock);
+	f2fs_up_write(&nm_i->nat_tree_lock);
 
 	kvfree(nm_i->nat_block_bitmap);
 	if (nm_i->free_nid_bitmap) {
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index e65c73c4411dc..be784f983b4a9 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -796,7 +796,7 @@ int f2fs_recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
 	INIT_LIST_HEAD(&dir_list);
 
 	/* prevent checkpoint */
-	down_write(&sbi->cp_global_sem);
+	f2fs_down_write(&sbi->cp_global_sem);
 
 	/* step #1: find fsynced inode numbers */
 	err = find_fsync_dnodes(sbi, &inode_list, check_only);
@@ -845,7 +845,7 @@ skip:
 	if (!err)
 		clear_sbi_flag(sbi, SBI_POR_DOING);
 
-	up_write(&sbi->cp_global_sem);
+	f2fs_up_write(&sbi->cp_global_sem);
 
 	/* let's drop all the directory inodes for clean checkpoint */
 	destroy_fsync_dnodes(&dir_list, err);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index a2740f1836bf2..df410a97731cb 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -474,7 +474,7 @@ int f2fs_commit_inmem_pages(struct inode *inode)
 
 	f2fs_balance_fs(sbi, true);
 
-	down_write(&fi->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
 
 	f2fs_lock_op(sbi);
 	set_inode_flag(inode, FI_ATOMIC_COMMIT);
@@ -486,7 +486,7 @@ int f2fs_commit_inmem_pages(struct inode *inode)
 	clear_inode_flag(inode, FI_ATOMIC_COMMIT);
 
 	f2fs_unlock_op(sbi);
-	up_write(&fi->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
 
 	return err;
 }
@@ -524,7 +524,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 			io_schedule();
 			finish_wait(&sbi->gc_thread->fggc_wq, &wait);
 		} else {
-			down_write(&sbi->gc_lock);
+			f2fs_down_write(&sbi->gc_lock);
 			f2fs_gc(sbi, false, false, false, NULL_SEGNO);
 		}
 	}
@@ -532,7 +532,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need)
 
 static inline bool excess_dirty_threshold(struct f2fs_sb_info *sbi)
 {
-	int factor = rwsem_is_locked(&sbi->cp_rwsem) ? 3 : 2;
+	int factor = f2fs_rwsem_is_locked(&sbi->cp_rwsem) ? 3 : 2;
 	unsigned int dents = get_pages(sbi, F2FS_DIRTY_DENTS);
 	unsigned int qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
 	unsigned int nodes = get_pages(sbi, F2FS_DIRTY_NODES);
@@ -573,7 +573,7 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
 
 	/* there is background inflight IO or foreground operation recently */
 	if (is_inflight_io(sbi, REQ_TIME) ||
-		(!f2fs_time_over(sbi, REQ_TIME) && rwsem_is_locked(&sbi->cp_rwsem)))
+		(!f2fs_time_over(sbi, REQ_TIME) && f2fs_rwsem_is_locked(&sbi->cp_rwsem)))
 		return;
 
 	/* exceed periodical checkpoint timeout threshold */
@@ -2824,7 +2824,7 @@ static void __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
 	if (!sbi->am.atgc_enabled)
 		return;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&SIT_I(sbi)->sentry_lock);
@@ -2834,7 +2834,7 @@ static void __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
 	up_write(&SIT_I(sbi)->sentry_lock);
 	mutex_unlock(&curseg->curseg_mutex);
 
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 
 }
 void f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi)
@@ -2985,7 +2985,7 @@ void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
 	struct curseg_info *curseg = CURSEG_I(sbi, type);
 	unsigned int segno;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&SIT_I(sbi)->sentry_lock);
 
@@ -3009,7 +3009,7 @@ unlock:
 			    type, segno, curseg->segno);
 
 	mutex_unlock(&curseg->curseg_mutex);
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 static void __allocate_new_segment(struct f2fs_sb_info *sbi, int type,
@@ -3041,23 +3041,23 @@ static void __allocate_new_section(struct f2fs_sb_info *sbi,
 
 void f2fs_allocate_new_section(struct f2fs_sb_info *sbi, int type, bool force)
 {
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 	down_write(&SIT_I(sbi)->sentry_lock);
 	__allocate_new_section(sbi, type, force);
 	up_write(&SIT_I(sbi)->sentry_lock);
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
 {
 	int i;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 	down_write(&SIT_I(sbi)->sentry_lock);
 	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++)
 		__allocate_new_segment(sbi, i, false, false);
 	up_write(&SIT_I(sbi)->sentry_lock);
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 static const struct segment_allocation default_salloc_ops = {
@@ -3195,9 +3195,9 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
 	if (sbi->discard_blks == 0)
 		goto out;
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	err = f2fs_write_checkpoint(sbi, &cpc);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 	if (err)
 		goto out;
 
@@ -3434,7 +3434,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	bool from_gc = (type == CURSEG_ALL_DATA_ATGC);
 	struct seg_entry *se = NULL;
 
-	down_read(&SM_I(sbi)->curseg_lock);
+	f2fs_down_read(&SM_I(sbi)->curseg_lock);
 
 	mutex_lock(&curseg->curseg_mutex);
 	down_write(&sit_i->sentry_lock);
@@ -3517,7 +3517,7 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 
 	mutex_unlock(&curseg->curseg_mutex);
 
-	up_read(&SM_I(sbi)->curseg_lock);
+	f2fs_up_read(&SM_I(sbi)->curseg_lock);
 }
 
 void f2fs_update_device_state(struct f2fs_sb_info *sbi, nid_t ino,
@@ -3553,7 +3553,7 @@ static void do_write_page(struct f2fs_summary *sum, struct f2fs_io_info *fio)
 	bool keep_order = (f2fs_lfs_mode(fio->sbi) && type == CURSEG_COLD_DATA);
 
 	if (keep_order)
-		down_read(&fio->sbi->io_order_lock);
+		f2fs_down_read(&fio->sbi->io_order_lock);
 reallocate:
 	f2fs_allocate_data_block(fio->sbi, fio->page, fio->old_blkaddr,
 			&fio->new_blkaddr, sum, type, fio);
@@ -3573,7 +3573,7 @@ reallocate:
 	f2fs_update_device_state(fio->sbi, fio->ino, fio->new_blkaddr, 1);
 
 	if (keep_order)
-		up_read(&fio->sbi->io_order_lock);
+		f2fs_up_read(&fio->sbi->io_order_lock);
 }
 
 void f2fs_do_write_meta_page(struct f2fs_sb_info *sbi, struct page *page,
@@ -3708,7 +3708,7 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 	se = get_seg_entry(sbi, segno);
 	type = se->type;
 
-	down_write(&SM_I(sbi)->curseg_lock);
+	f2fs_down_write(&SM_I(sbi)->curseg_lock);
 
 	if (!recover_curseg) {
 		/* for recovery flow */
@@ -3777,7 +3777,7 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 
 	up_write(&sit_i->sentry_lock);
 	mutex_unlock(&curseg->curseg_mutex);
-	up_write(&SM_I(sbi)->curseg_lock);
+	f2fs_up_write(&SM_I(sbi)->curseg_lock);
 }
 
 void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
@@ -5261,7 +5261,7 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi)
 
 	INIT_LIST_HEAD(&sm_info->sit_entry_set);
 
-	init_rwsem(&sm_info->curseg_lock);
+	init_f2fs_rwsem(&sm_info->curseg_lock);
 
 	if (!f2fs_readonly(sbi->sb)) {
 		err = f2fs_create_flush_cmd_control(sbi);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 13c4cb31a1a12..b25636ad10fab 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1362,17 +1362,17 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
 	/* Initialize f2fs-specific inode info */
 	atomic_set(&fi->dirty_pages, 0);
 	atomic_set(&fi->i_compr_blocks, 0);
-	init_rwsem(&fi->i_sem);
+	init_f2fs_rwsem(&fi->i_sem);
 	spin_lock_init(&fi->i_size_lock);
 	INIT_LIST_HEAD(&fi->dirty_list);
 	INIT_LIST_HEAD(&fi->gdirty_list);
 	INIT_LIST_HEAD(&fi->inmem_ilist);
 	INIT_LIST_HEAD(&fi->inmem_pages);
 	mutex_init(&fi->inmem_lock);
-	init_rwsem(&fi->i_gc_rwsem[READ]);
-	init_rwsem(&fi->i_gc_rwsem[WRITE]);
-	init_rwsem(&fi->i_mmap_sem);
-	init_rwsem(&fi->i_xattr_sem);
+	init_f2fs_rwsem(&fi->i_gc_rwsem[READ]);
+	init_f2fs_rwsem(&fi->i_gc_rwsem[WRITE]);
+	init_f2fs_rwsem(&fi->i_mmap_sem);
+	init_f2fs_rwsem(&fi->i_xattr_sem);
 
 	/* Will be used by directory only */
 	fi->i_dir_level = F2FS_SB(sb)->dir_level;
@@ -2099,7 +2099,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 	f2fs_update_time(sbi, DISABLE_TIME);
 
 	while (!f2fs_time_over(sbi, DISABLE_TIME)) {
-		down_write(&sbi->gc_lock);
+		f2fs_down_write(&sbi->gc_lock);
 		err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
 		if (err == -ENODATA) {
 			err = 0;
@@ -2121,7 +2121,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 		goto restore_flag;
 	}
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	cpc.reason = CP_PAUSE;
 	set_sbi_flag(sbi, SBI_CP_DISABLED);
 	err = f2fs_write_checkpoint(sbi, &cpc);
@@ -2133,7 +2133,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 	spin_unlock(&sbi->stat_lock);
 
 out_unlock:
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 restore_flag:
 	sbi->sb->s_flags = s_flags;	/* Restore SB_RDONLY status */
 	return err;
@@ -2153,12 +2153,12 @@ static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
 	if (unlikely(retry < 0))
 		f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
 
-	down_write(&sbi->gc_lock);
+	f2fs_down_write(&sbi->gc_lock);
 	f2fs_dirty_to_prefree(sbi);
 
 	clear_sbi_flag(sbi, SBI_CP_DISABLED);
 	set_sbi_flag(sbi, SBI_IS_DIRTY);
-	up_write(&sbi->gc_lock);
+	f2fs_up_write(&sbi->gc_lock);
 
 	f2fs_sync_fs(sbi->sb, 1);
 }
@@ -2719,18 +2719,18 @@ int f2fs_quota_sync(struct super_block *sb, int type)
 		/*
 		 * do_quotactl
 		 *  f2fs_quota_sync
-		 *  down_read(quota_sem)
+		 *  f2fs_down_read(quota_sem)
 		 *  dquot_writeback_dquots()
 		 *  f2fs_dquot_commit
 		 *			      block_operation
-		 *			      down_read(quota_sem)
+		 *			      f2fs_down_read(quota_sem)
 		 */
 		f2fs_lock_op(sbi);
-		down_read(&sbi->quota_sem);
+		f2fs_down_read(&sbi->quota_sem);
 
 		ret = f2fs_quota_sync_file(sbi, cnt);
 
-		up_read(&sbi->quota_sem);
+		f2fs_up_read(&sbi->quota_sem);
 		f2fs_unlock_op(sbi);
 
 		inode_unlock(dqopt->files[cnt]);
@@ -2855,11 +2855,11 @@ static int f2fs_dquot_commit(struct dquot *dquot)
 	struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
 	int ret;
 
-	down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
+	f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
 	ret = dquot_commit(dquot);
 	if (ret < 0)
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
-	up_read(&sbi->quota_sem);
+	f2fs_up_read(&sbi->quota_sem);
 	return ret;
 }
 
@@ -2868,11 +2868,11 @@ static int f2fs_dquot_acquire(struct dquot *dquot)
 	struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
 	int ret;
 
-	down_read(&sbi->quota_sem);
+	f2fs_down_read(&sbi->quota_sem);
 	ret = dquot_acquire(dquot);
 	if (ret < 0)
 		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
-	up_read(&sbi->quota_sem);
+	f2fs_up_read(&sbi->quota_sem);
 	return ret;
 }
 
@@ -3613,14 +3613,14 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
 
 	INIT_LIST_HEAD(&sbi->s_list);
 	mutex_init(&sbi->umount_mutex);
-	init_rwsem(&sbi->io_order_lock);
+	init_f2fs_rwsem(&sbi->io_order_lock);
 	spin_lock_init(&sbi->cp_lock);
 
 	sbi->dirty_device = 0;
 	spin_lock_init(&sbi->dev_lock);
 
-	init_rwsem(&sbi->sb_lock);
-	init_rwsem(&sbi->pin_sem);
+	init_f2fs_rwsem(&sbi->sb_lock);
+	init_f2fs_rwsem(&sbi->pin_sem);
 }
 
 static int init_percpu_info(struct f2fs_sb_info *sbi)
@@ -4072,11 +4072,11 @@ try_onemore:
 
 	/* init f2fs-specific super block info */
 	sbi->valid_super_block = valid_super_block;
-	init_rwsem(&sbi->gc_lock);
+	init_f2fs_rwsem(&sbi->gc_lock);
 	mutex_init(&sbi->writepages);
-	init_rwsem(&sbi->cp_global_sem);
-	init_rwsem(&sbi->node_write);
-	init_rwsem(&sbi->node_change);
+	init_f2fs_rwsem(&sbi->cp_global_sem);
+	init_f2fs_rwsem(&sbi->node_write);
+	init_f2fs_rwsem(&sbi->node_change);
 
 	/* disallow all the data/node/meta page writes */
 	set_sbi_flag(sbi, SBI_POR_DOING);
@@ -4097,18 +4097,18 @@ try_onemore:
 		}
 
 		for (j = HOT; j < n; j++) {
-			init_rwsem(&sbi->write_io[i][j].io_rwsem);
+			init_f2fs_rwsem(&sbi->write_io[i][j].io_rwsem);
 			sbi->write_io[i][j].sbi = sbi;
 			sbi->write_io[i][j].bio = NULL;
 			spin_lock_init(&sbi->write_io[i][j].io_lock);
 			INIT_LIST_HEAD(&sbi->write_io[i][j].io_list);
 			INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list);
-			init_rwsem(&sbi->write_io[i][j].bio_list_lock);
+			init_f2fs_rwsem(&sbi->write_io[i][j].bio_list_lock);
 		}
 	}
 
-	init_rwsem(&sbi->cp_rwsem);
-	init_rwsem(&sbi->quota_sem);
+	init_f2fs_rwsem(&sbi->cp_rwsem);
+	init_f2fs_rwsem(&sbi->quota_sem);
 	init_waitqueue_head(&sbi->cp_wait);
 	init_sb_info(sbi);
 
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 26362498a2b30..eb4b63281568c 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -364,7 +364,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
 		if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN)
 			return -EINVAL;
 
-		down_write(&sbi->sb_lock);
+		f2fs_down_write(&sbi->sb_lock);
 
 		ret = f2fs_update_extension_list(sbi, name, hot, set);
 		if (ret)
@@ -374,7 +374,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
 		if (ret)
 			f2fs_update_extension_list(sbi, name, hot, !set);
 out:
-		up_write(&sbi->sb_lock);
+		f2fs_up_write(&sbi->sb_lock);
 		return ret ? ret : count;
 	}
 
diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
index 52c87e8fcdc3a..5cbc463247872 100644
--- a/fs/f2fs/verity.c
+++ b/fs/f2fs/verity.c
@@ -208,7 +208,7 @@ cleanup:
 	 * from re-instantiating cached pages we are truncating (since unlike
 	 * normal file accesses, garbage collection isn't limited by i_size).
 	 */
-	down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	truncate_inode_pages(inode->i_mapping, inode->i_size);
 	err2 = f2fs_truncate(inode);
 	if (err2) {
@@ -216,7 +216,7 @@ cleanup:
 			 err2);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 	}
-	up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+	f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 	clear_inode_flag(inode, FI_VERITY_IN_PROGRESS);
 	return err ?: err2;
 }
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index bff7e5466b2fb..8d1c8efb643c2 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -523,10 +523,10 @@ int f2fs_getxattr(struct inode *inode, int index, const char *name,
 	if (len > F2FS_NAME_LEN)
 		return -ERANGE;
 
-	down_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);
 	error = lookup_all_xattrs(inode, ipage, index, len, name,
 				&entry, &base_addr, &base_size, &is_inline);
-	up_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_xattr_sem);
 	if (error)
 		return error;
 
@@ -560,9 +560,9 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 	int error;
 	size_t rest = buffer_size;
 
-	down_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_read(&F2FS_I(inode)->i_xattr_sem);
 	error = read_all_xattrs(inode, NULL, &base_addr);
-	up_read(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_up_read(&F2FS_I(inode)->i_xattr_sem);
 	if (error)
 		return error;
 
@@ -784,9 +784,9 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
 	f2fs_balance_fs(sbi, true);
 
 	f2fs_lock_op(sbi);
-	down_write(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_down_write(&F2FS_I(inode)->i_xattr_sem);
 	err = __f2fs_setxattr(inode, index, name, value, size, ipage, flags);
-	up_write(&F2FS_I(inode)->i_xattr_sem);
+	f2fs_up_write(&F2FS_I(inode)->i_xattr_sem);
 	f2fs_unlock_op(sbi);
 
 	f2fs_update_time(sbi, REQ_TIME);
-- 
GitLab


From 995aca46909145f0d14f674064f39a0bc674bacc Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Wed, 2 Feb 2022 16:34:03 -0800
Subject: [PATCH 3556/4878] ANDROID: kleaf: build/kleaf -> build/kernel/kleaf

This is part of a migration process from build/
to build/kernel.

Test: builds
Bug: 204425264
Change-Id: Id29f8e476fbb3590196789b2b578865798f24cd3
Signed-off-by: Yifan Hong <elsk@google.com>
---
 BUILD.bazel | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/BUILD.bazel b/BUILD.bazel
index 463a49d365792..ad7ed991a3304 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -17,6 +17,6 @@ package(
     ],
 )
 
-load("//build/kleaf:common_kernels.bzl", "define_common_kernels")
+load("//build/kernel/kleaf:common_kernels.bzl", "define_common_kernels")
 
 define_common_kernels()
-- 
GitLab


From d107cd06f26b4d45b1079c7eb857815905198076 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Fri, 4 Feb 2022 15:20:46 +0000
Subject: [PATCH 3557/4878] Revert "ANDROID: incremental-fs: fix mount_fs
 issue"

This reverts commit 93717b608dd30f9d41b15a72e809238807c68026.

Test: Can now install the same apk twice, and repeated installs are
stable
Bug: 217661925
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I86871c364c17a0d1107b3891a574b72edcf04ea2
---
 fs/incfs/vfs.c | 58 +++++++++++++-------------------------------------
 fs/incfs/vfs.h |  1 +
 2 files changed, 16 insertions(+), 43 deletions(-)

diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
index 84f9932233c45..8d21f6decaee0 100644
--- a/fs/incfs/vfs.c
+++ b/fs/incfs/vfs.c
@@ -393,7 +393,7 @@ static int iterate_incfs_dir(struct file *file, struct dir_context *ctx)
 	struct mount_info *mi = get_mount_info(file_superblock(file));
 	bool root;
 
-	if (!dir || !mi) {
+	if (!dir) {
 		error = -EBADF;
 		goto out;
 	}
@@ -1336,9 +1336,6 @@ static int dir_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct dentry *trap;
 	int error = 0;
 
-	if (!mi)
-		return -EBADF;
-
 	error = mutex_lock_interruptible(&mi->mi_dir_struct_mutex);
 	if (error)
 		return error;
@@ -1667,9 +1664,6 @@ static ssize_t incfs_getxattr(struct dentry *d, const char *name,
 	size_t stored_size;
 	int i;
 
-	if (!mi)
-		return -EBADF;
-
 	if (di && di->backing_path.dentry)
 		return vfs_getxattr(di->backing_path.dentry, name, value, size);
 
@@ -1704,9 +1698,6 @@ static ssize_t incfs_setxattr(struct dentry *d, const char *name,
 	size_t *stored_size;
 	int i;
 
-	if (!mi)
-		return -EBADF;
-
 	if (di && di->backing_path.dentry)
 		return vfs_setxattr(di->backing_path.dentry, name, value, size,
 				    flags);
@@ -1745,11 +1736,6 @@ static ssize_t incfs_listxattr(struct dentry *d, char *list, size_t size)
 	return vfs_listxattr(di->backing_path.dentry, list, size);
 }
 
-static int incfs_test_super(struct super_block *s, void *p)
-{
-	return s->s_fs_info != NULL;
-}
-
 struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 			      const char *dev_name, void *data)
 {
@@ -1760,8 +1746,7 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	struct dentry *incomplete_dir = NULL;
 	struct super_block *src_fs_sb = NULL;
 	struct inode *root_inode = NULL;
-	struct super_block *sb = sget(type, incfs_test_super, set_anon_super,
-				      flags, NULL);
+	struct super_block *sb = sget(type, NULL, set_anon_super, flags, NULL);
 	int error = 0;
 
 	if (IS_ERR(sb))
@@ -1802,18 +1787,13 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	src_fs_sb = backing_dir_path.dentry->d_sb;
 	sb->s_maxbytes = src_fs_sb->s_maxbytes;
 
-	if (!sb->s_fs_info) {
-		mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
+	mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
 
-		if (IS_ERR_OR_NULL(mi)) {
-			error = PTR_ERR(mi);
-			pr_err("incfs: Error allocating mount info. %d\n", error);
-			mi = NULL;
-			goto err;
-		}
-		sb->s_fs_info = mi;
-	} else {
-		mi = sb->s_fs_info;
+	if (IS_ERR_OR_NULL(mi)) {
+		error = PTR_ERR(mi);
+		pr_err("incfs: Error allocating mount info. %d\n", error);
+		mi = NULL;
+		goto err;
 	}
 
 	index_dir = open_or_create_special_dir(backing_dir_path.dentry,
@@ -1838,22 +1818,21 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	}
 	mi->mi_incomplete_dir = incomplete_dir;
 
+	sb->s_fs_info = mi;
 	root_inode = fetch_regular_inode(sb, backing_dir_path.dentry);
 	if (IS_ERR(root_inode)) {
 		error = PTR_ERR(root_inode);
 		goto err;
 	}
 
+	sb->s_root = d_make_root(root_inode);
 	if (!sb->s_root) {
-		sb->s_root = d_make_root(root_inode);
-		if (!sb->s_root) {
-			error = -ENOMEM;
-			goto err;
-		}
-		error = incfs_init_dentry(sb->s_root, &backing_dir_path);
-		if (error)
-			goto err;
+		error = -ENOMEM;
+		goto err;
 	}
+	error = incfs_init_dentry(sb->s_root, &backing_dir_path);
+	if (error)
+		goto err;
 
 	mi->mi_backing_dir_path = backing_dir_path;
 	sb->s_flags |= SB_ACTIVE;
@@ -1876,9 +1855,6 @@ static int incfs_remount_fs(struct super_block *sb, int *flags, char *data)
 	struct mount_info *mi = get_mount_info(sb);
 	int err = 0;
 
-	if (!mi)
-		return err;
-
 	sync_filesystem(sb);
 	err = parse_options(&options, (char *)data);
 	if (err)
@@ -1912,16 +1888,12 @@ void incfs_kill_sb(struct super_block *sb)
 
 	kill_anon_super(sb);
 	incfs_free_mount_info(mi);
-	sb->s_fs_info = NULL;
 }
 
 static int show_options(struct seq_file *m, struct dentry *root)
 {
 	struct mount_info *mi = get_mount_info(root->d_sb);
 
-	if (!mi)
-		return -EBADF;
-
 	seq_printf(m, ",read_timeout_ms=%u", mi->mi_options.read_timeout_ms);
 	seq_printf(m, ",readahead=%u", mi->mi_options.readahead_pages);
 	if (mi->mi_options.read_log_pages != 0) {
diff --git a/fs/incfs/vfs.h b/fs/incfs/vfs.h
index 8876e63a8b0f9..79fdf243733d4 100644
--- a/fs/incfs/vfs.h
+++ b/fs/incfs/vfs.h
@@ -19,6 +19,7 @@ static inline struct mount_info *get_mount_info(struct super_block *sb)
 {
 	struct mount_info *result = sb->s_fs_info;
 
+	WARN_ON(!result);
 	return result;
 }
 
-- 
GitLab


From 3b4c966fb156ff3e70b2526d964952ff7c1574d9 Mon Sep 17 00:00:00 2001
From: Lukas Wunner <lukas@wunner.de>
Date: Wed, 17 Nov 2021 23:22:09 +0100
Subject: [PATCH 3558/4878] PCI: pciehp: Fix infinite loop in IRQ handler upon
 power fault

commit 23584c1ed3e15a6f4bfab8dc5a88d94ab929ee12 upstream.

The Power Fault Detected bit in the Slot Status register differs from
all other hotplug events in that it is sticky:  It can only be cleared
after turning off slot power.  Per PCIe r5.0, sec. 6.7.1.8:

  If a power controller detects a main power fault on the hot-plug slot,
  it must automatically set its internal main power fault latch [...].
  The main power fault latch is cleared when software turns off power to
  the hot-plug slot.

The stickiness used to cause interrupt storms and infinite loops which
were fixed in 2009 by commits 5651c48cfafe ("PCI pciehp: fix power fault
interrupt storm problem") and 99f0169c17f3 ("PCI: pciehp: enable
software notification on empty slots").

Unfortunately in 2020 the infinite loop issue was inadvertently
reintroduced by commit 8edf5332c393 ("PCI: pciehp: Fix MSI interrupt
race"):  The hardirq handler pciehp_isr() clears the PFD bit until
pciehp's power_fault_detected flag is set.  That happens in the IRQ
thread pciehp_ist(), which never learns of the event because the hardirq
handler is stuck in an infinite loop.  Fix by setting the
power_fault_detected flag already in the hardirq handler.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=214989
Link: https://lore.kernel.org/linux-pci/DM8PR11MB5702255A6A92F735D90A4446868B9@DM8PR11MB5702.namprd11.prod.outlook.com
Fixes: 8edf5332c393 ("PCI: pciehp: Fix MSI interrupt race")
Link: https://lore.kernel.org/r/66eaeef31d4997ceea357ad93259f290ededecfd.1637187226.git.lukas@wunner.de
Reported-by: Joseph Bao <joseph.bao@intel.com>
Tested-by: Joseph Bao <joseph.bao@intel.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v4.19+
Cc: Stuart Hayes <stuart.w.hayes@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/hotplug/pciehp_hpc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 90da17c6da664..30708af975adc 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -642,6 +642,8 @@ read_status:
 	 */
 	if (ctrl->power_fault_detected)
 		status &= ~PCI_EXP_SLTSTA_PFD;
+	else if (status & PCI_EXP_SLTSTA_PFD)
+		ctrl->power_fault_detected = true;
 
 	events |= status;
 	if (!events) {
@@ -651,7 +653,7 @@ read_status:
 	}
 
 	if (status) {
-		pcie_capability_write_word(pdev, PCI_EXP_SLTSTA, events);
+		pcie_capability_write_word(pdev, PCI_EXP_SLTSTA, status);
 
 		/*
 		 * In MSI mode, all event bits must be zero before the port
@@ -725,8 +727,7 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id)
 	}
 
 	/* Check Power Fault Detected */
-	if ((events & PCI_EXP_SLTSTA_PFD) && !ctrl->power_fault_detected) {
-		ctrl->power_fault_detected = 1;
+	if (events & PCI_EXP_SLTSTA_PFD) {
 		ctrl_err(ctrl, "Slot(%s): Power fault\n", slot_name(ctrl));
 		pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
 				      PCI_EXP_SLTCTL_ATTN_IND_ON);
-- 
GitLab


From 2ed912e3e057b2e883cade4dcf9be74fcc5a7e82 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@linaro.org>
Date: Wed, 12 Jan 2022 07:30:10 -0600
Subject: [PATCH 3559/4878] net: ipa: fix atomic update in
 ipa_endpoint_replenish()

commit 6c0e3b5ce94947b311348c367db9e11dcb2ccc93 upstream.

In ipa_endpoint_replenish(), if an error occurs when attempting to
replenish a receive buffer, we just quit and try again later.  In
that case we increment the backlog count to reflect that the attempt
was unsuccessful.  Then, if the add_one flag was true we increment
the backlog again.

This second increment is not included in the backlog local variable
though, and its value determines whether delayed work should be
scheduled.  This is a bug.

Fix this by determining whether 1 or 2 should be added to the
backlog before adding it in a atomic_add_return() call.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Fixes: 84f9bd12d46db ("soc: qcom: ipa: IPA endpoints")
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ipa/ipa_endpoint.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index a37aae00e128f..397323f9e5d64 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -918,10 +918,7 @@ static void ipa_endpoint_replenish(struct ipa_endpoint *endpoint, u32 count)
 
 try_again_later:
 	/* The last one didn't succeed, so fix the backlog */
-	backlog = atomic_inc_return(&endpoint->replenish_backlog);
-
-	if (count)
-		atomic_add(count, &endpoint->replenish_backlog);
+	backlog = atomic_add_return(count + 1, &endpoint->replenish_backlog);
 
 	/* Whenever a receive buffer transaction completes we'll try to
 	 * replenish again.  It's unlikely, but if we fail to supply even
-- 
GitLab


From ad81380d3a48f0d2f39ce5188d383897276c9c37 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@linaro.org>
Date: Wed, 12 Jan 2022 07:30:11 -0600
Subject: [PATCH 3560/4878] net: ipa: use a bitmap for endpoint
 replenish_enabled

commit c1aaa01dbf4cef95af3e04a5a43986c290e06ea3 upstream.

Define a new replenish_flags bitmap to contain Boolean flags
associated with an endpoint's replenishing state.  Replace the
replenish_enabled field with a flag in that bitmap.  This is to
prepare for the next patch, which adds another flag.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ipa/ipa_endpoint.c |  8 ++++----
 drivers/net/ipa/ipa_endpoint.h | 13 ++++++++++++-
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 397323f9e5d64..5f83be6754b6c 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -901,7 +901,7 @@ static void ipa_endpoint_replenish(struct ipa_endpoint *endpoint, u32 count)
 	struct gsi *gsi;
 	u32 backlog;
 
-	if (!endpoint->replenish_enabled) {
+	if (!test_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags)) {
 		if (count)
 			atomic_add(count, &endpoint->replenish_saved);
 		return;
@@ -938,7 +938,7 @@ static void ipa_endpoint_replenish_enable(struct ipa_endpoint *endpoint)
 	u32 max_backlog;
 	u32 saved;
 
-	endpoint->replenish_enabled = true;
+	set_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
 	while ((saved = atomic_xchg(&endpoint->replenish_saved, 0)))
 		atomic_add(saved, &endpoint->replenish_backlog);
 
@@ -952,7 +952,7 @@ static void ipa_endpoint_replenish_disable(struct ipa_endpoint *endpoint)
 {
 	u32 backlog;
 
-	endpoint->replenish_enabled = false;
+	clear_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
 	while ((backlog = atomic_xchg(&endpoint->replenish_backlog, 0)))
 		atomic_add(backlog, &endpoint->replenish_saved);
 }
@@ -1469,7 +1469,7 @@ static void ipa_endpoint_setup_one(struct ipa_endpoint *endpoint)
 		/* RX transactions require a single TRE, so the maximum
 		 * backlog is the same as the maximum outstanding TREs.
 		 */
-		endpoint->replenish_enabled = false;
+		clear_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
 		atomic_set(&endpoint->replenish_saved,
 			   gsi_channel_tre_max(gsi, endpoint->channel_id));
 		atomic_set(&endpoint->replenish_backlog, 0);
diff --git a/drivers/net/ipa/ipa_endpoint.h b/drivers/net/ipa/ipa_endpoint.h
index 58a245de488e8..ffae393500d4f 100644
--- a/drivers/net/ipa/ipa_endpoint.h
+++ b/drivers/net/ipa/ipa_endpoint.h
@@ -39,6 +39,17 @@ enum ipa_endpoint_name {
 
 #define IPA_ENDPOINT_MAX		32	/* Max supported by driver */
 
+/**
+ * enum ipa_replenish_flag:	RX buffer replenish flags
+ *
+ * @IPA_REPLENISH_ENABLED:	Whether receive buffer replenishing is enabled
+ * @IPA_REPLENISH_COUNT:	Number of defined replenish flags
+ */
+enum ipa_replenish_flag {
+	IPA_REPLENISH_ENABLED,
+	IPA_REPLENISH_COUNT,	/* Number of flags (must be last) */
+};
+
 /**
  * struct ipa_endpoint - IPA endpoint information
  * @channel_id:	EP's GSI channel
@@ -60,7 +71,7 @@ struct ipa_endpoint {
 	struct net_device *netdev;
 
 	/* Receive buffer replenishing for RX endpoints */
-	bool replenish_enabled;
+	DECLARE_BITMAP(replenish_flags, IPA_REPLENISH_COUNT);
 	u32 replenish_ready;
 	atomic_t replenish_saved;
 	atomic_t replenish_backlog;
-- 
GitLab


From 42fdbf8b7dab0328554899455a5b0a58526f8a63 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder@linaro.org>
Date: Wed, 12 Jan 2022 07:30:12 -0600
Subject: [PATCH 3561/4878] net: ipa: prevent concurrent replenish

commit 998c0bd2b3715244da7639cc4e6a2062cb79c3f4 upstream.

We have seen cases where an endpoint RX completion interrupt arrives
while replenishing for the endpoint is underway.  This causes another
instance of replenishing to begin as part of completing the receive
transaction.  If this occurs it can lead to transaction corruption.

Use a new flag to ensure only one replenish instance for an endpoint
executes at a time.

Fixes: 84f9bd12d46db ("soc: qcom: ipa: IPA endpoints")
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ipa/ipa_endpoint.c | 12 ++++++++++++
 drivers/net/ipa/ipa_endpoint.h |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 5f83be6754b6c..621648ce750b7 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -907,16 +907,27 @@ static void ipa_endpoint_replenish(struct ipa_endpoint *endpoint, u32 count)
 		return;
 	}
 
+	/* If already active, just update the backlog */
+	if (test_and_set_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags)) {
+		if (count)
+			atomic_add(count, &endpoint->replenish_backlog);
+		return;
+	}
 
 	while (atomic_dec_not_zero(&endpoint->replenish_backlog))
 		if (ipa_endpoint_replenish_one(endpoint))
 			goto try_again_later;
+
+	clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
+
 	if (count)
 		atomic_add(count, &endpoint->replenish_backlog);
 
 	return;
 
 try_again_later:
+	clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
+
 	/* The last one didn't succeed, so fix the backlog */
 	backlog = atomic_add_return(count + 1, &endpoint->replenish_backlog);
 
@@ -1470,6 +1481,7 @@ static void ipa_endpoint_setup_one(struct ipa_endpoint *endpoint)
 		 * backlog is the same as the maximum outstanding TREs.
 		 */
 		clear_bit(IPA_REPLENISH_ENABLED, endpoint->replenish_flags);
+		clear_bit(IPA_REPLENISH_ACTIVE, endpoint->replenish_flags);
 		atomic_set(&endpoint->replenish_saved,
 			   gsi_channel_tre_max(gsi, endpoint->channel_id));
 		atomic_set(&endpoint->replenish_backlog, 0);
diff --git a/drivers/net/ipa/ipa_endpoint.h b/drivers/net/ipa/ipa_endpoint.h
index ffae393500d4f..823c4a1296587 100644
--- a/drivers/net/ipa/ipa_endpoint.h
+++ b/drivers/net/ipa/ipa_endpoint.h
@@ -43,10 +43,12 @@ enum ipa_endpoint_name {
  * enum ipa_replenish_flag:	RX buffer replenish flags
  *
  * @IPA_REPLENISH_ENABLED:	Whether receive buffer replenishing is enabled
+ * @IPA_REPLENISH_ACTIVE:	Whether replenishing is underway
  * @IPA_REPLENISH_COUNT:	Number of defined replenish flags
  */
 enum ipa_replenish_flag {
 	IPA_REPLENISH_ENABLED,
+	IPA_REPLENISH_ACTIVE,
 	IPA_REPLENISH_COUNT,	/* Number of flags (must be last) */
 };
 
-- 
GitLab


From 063029a8820e63198ffdaec25f32bd7ed79fd2f0 Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@baylibre.com>
Date: Wed, 2 Feb 2022 11:57:05 -0800
Subject: [PATCH 3562/4878] Revert "drivers: bus: simple-pm-bus: Add support
 for probing simple bus only devices"

This reverts commit d5f13bbb51046537b2c2b9868177fb8fe8a6a6e9 which is
commit 98e96cf80045a383fcc47c58dd4e87b3ae587b3e upstream.

This change related to fw_devlink was backported to v5.10 but has
severaly other dependencies that were not backported.  As discussed
with the original author, the best approach for v5.10 is to revert.

Link: https://lore.kernel.org/linux-omap/7hk0efmfzo.fsf@baylibre.com
Acked-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bus/simple-pm-bus.c | 39 +------------------------------------
 1 file changed, 1 insertion(+), 38 deletions(-)

diff --git a/drivers/bus/simple-pm-bus.c b/drivers/bus/simple-pm-bus.c
index 244b8f3b38b40..c5eb46cbf388b 100644
--- a/drivers/bus/simple-pm-bus.c
+++ b/drivers/bus/simple-pm-bus.c
@@ -16,33 +16,7 @@
 
 static int simple_pm_bus_probe(struct platform_device *pdev)
 {
-	const struct device *dev = &pdev->dev;
-	struct device_node *np = dev->of_node;
-	const struct of_device_id *match;
-
-	/*
-	 * Allow user to use driver_override to bind this driver to a
-	 * transparent bus device which has a different compatible string
-	 * that's not listed in simple_pm_bus_of_match. We don't want to do any
-	 * of the simple-pm-bus tasks for these devices, so return early.
-	 */
-	if (pdev->driver_override)
-		return 0;
-
-	match = of_match_device(dev->driver->of_match_table, dev);
-	/*
-	 * These are transparent bus devices (not simple-pm-bus matches) that
-	 * have their child nodes populated automatically.  So, don't need to
-	 * do anything more. We only match with the device if this driver is
-	 * the most specific match because we don't want to incorrectly bind to
-	 * a device that has a more specific driver.
-	 */
-	if (match && match->data) {
-		if (of_property_match_string(np, "compatible", match->compatible) == 0)
-			return 0;
-		else
-			return -ENODEV;
-	}
+	struct device_node *np = pdev->dev.of_node;
 
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
@@ -56,25 +30,14 @@ static int simple_pm_bus_probe(struct platform_device *pdev)
 
 static int simple_pm_bus_remove(struct platform_device *pdev)
 {
-	const void *data = of_device_get_match_data(&pdev->dev);
-
-	if (pdev->driver_override || data)
-		return 0;
-
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
 	pm_runtime_disable(&pdev->dev);
 	return 0;
 }
 
-#define ONLY_BUS	((void *) 1) /* Match if the device is only a bus. */
-
 static const struct of_device_id simple_pm_bus_of_match[] = {
 	{ .compatible = "simple-pm-bus", },
-	{ .compatible = "simple-bus",	.data = ONLY_BUS },
-	{ .compatible = "simple-mfd",	.data = ONLY_BUS },
-	{ .compatible = "isa",		.data = ONLY_BUS },
-	{ .compatible = "arm,amba-bus",	.data = ONLY_BUS },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);
-- 
GitLab


From 080dbe7e9b86a0392d8dffc00d9971792afc121f Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Tue, 25 Jan 2022 22:03:58 +0000
Subject: [PATCH 3563/4878] KVM: x86: Forcibly leave nested virt when SMM state
 is toggled

commit f7e570780efc5cec9b2ed1e0472a7da14e864fdb upstream.

Forcibly leave nested virtualization operation if userspace toggles SMM
state via KVM_SET_VCPU_EVENTS or KVM_SYNC_X86_EVENTS.  If userspace
forces the vCPU out of SMM while it's post-VMXON and then injects an SMI,
vmx_enter_smm() will overwrite vmx->nested.smm.vmxon and end up with both
vmxon=false and smm.vmxon=false, but all other nVMX state allocated.

Don't attempt to gracefully handle the transition as (a) most transitions
are nonsencial, e.g. forcing SMM while L2 is running, (b) there isn't
sufficient information to handle all transitions, e.g. SVM wants access
to the SMRAM save state, and (c) KVM_SET_VCPU_EVENTS must precede
KVM_SET_NESTED_STATE during state restore as the latter disallows putting
the vCPU into L2 if SMM is active, and disallows tagging the vCPU as
being post-VMXON in SMM if SMM is not active.

Abuse of KVM_SET_VCPU_EVENTS manifests as a WARN and memory leak in nVMX
due to failure to free vmcs01's shadow VMCS, but the bug goes far beyond
just a memory leak, e.g. toggling SMM on while L2 is active puts the vCPU
in an architecturally impossible state.

  WARNING: CPU: 0 PID: 3606 at free_loaded_vmcs arch/x86/kvm/vmx/vmx.c:2665 [inline]
  WARNING: CPU: 0 PID: 3606 at free_loaded_vmcs+0x158/0x1a0 arch/x86/kvm/vmx/vmx.c:2656
  Modules linked in:
  CPU: 1 PID: 3606 Comm: syz-executor725 Not tainted 5.17.0-rc1-syzkaller #0
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  RIP: 0010:free_loaded_vmcs arch/x86/kvm/vmx/vmx.c:2665 [inline]
  RIP: 0010:free_loaded_vmcs+0x158/0x1a0 arch/x86/kvm/vmx/vmx.c:2656
  Code: <0f> 0b eb b3 e8 8f 4d 9f 00 e9 f7 fe ff ff 48 89 df e8 92 4d 9f 00
  Call Trace:
   <TASK>
   kvm_arch_vcpu_destroy+0x72/0x2f0 arch/x86/kvm/x86.c:11123
   kvm_vcpu_destroy arch/x86/kvm/../../../virt/kvm/kvm_main.c:441 [inline]
   kvm_destroy_vcpus+0x11f/0x290 arch/x86/kvm/../../../virt/kvm/kvm_main.c:460
   kvm_free_vcpus arch/x86/kvm/x86.c:11564 [inline]
   kvm_arch_destroy_vm+0x2e8/0x470 arch/x86/kvm/x86.c:11676
   kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1217 [inline]
   kvm_put_kvm+0x4fa/0xb00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1250
   kvm_vm_release+0x3f/0x50 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1273
   __fput+0x286/0x9f0 fs/file_table.c:311
   task_work_run+0xdd/0x1a0 kernel/task_work.c:164
   exit_task_work include/linux/task_work.h:32 [inline]
   do_exit+0xb29/0x2a30 kernel/exit.c:806
   do_group_exit+0xd2/0x2f0 kernel/exit.c:935
   get_signal+0x4b0/0x28c0 kernel/signal.c:2862
   arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
   handle_signal_work kernel/entry/common.c:148 [inline]
   exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
   exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
   __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
   syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
   do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
   entry_SYSCALL_64_after_hwframe+0x44/0xae
   </TASK>

Cc: stable@vger.kernel.org
Reported-by: syzbot+8112db3ab20e70d50c31@syzkaller.appspotmail.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220125220358.2091737-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Backported-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/kvm_host.h |  1 +
 arch/x86/kvm/svm/nested.c       | 10 ++++++++--
 arch/x86/kvm/svm/svm.c          |  2 +-
 arch/x86/kvm/svm/svm.h          |  2 +-
 arch/x86/kvm/vmx/nested.c       |  1 +
 arch/x86/kvm/x86.c              |  2 ++
 6 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 13e10b970ac83..0eb41dce55da3 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1285,6 +1285,7 @@ struct kvm_x86_ops {
 };
 
 struct kvm_x86_nested_ops {
+	void (*leave_nested)(struct kvm_vcpu *vcpu);
 	int (*check_events)(struct kvm_vcpu *vcpu);
 	bool (*hv_timer_pending)(struct kvm_vcpu *vcpu);
 	int (*get_state)(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index f0946872f5e6d..23910e6a3f011 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -783,8 +783,10 @@ void svm_free_nested(struct vcpu_svm *svm)
 /*
  * Forcibly leave nested mode in order to be able to reset the VCPU later on.
  */
-void svm_leave_nested(struct vcpu_svm *svm)
+void svm_leave_nested(struct kvm_vcpu *vcpu)
 {
+	struct vcpu_svm *svm = to_svm(vcpu);
+
 	if (is_guest_mode(&svm->vcpu)) {
 		struct vmcb *hsave = svm->nested.hsave;
 		struct vmcb *vmcb = svm->vmcb;
@@ -1185,7 +1187,7 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 
 	if (!(kvm_state->flags & KVM_STATE_NESTED_GUEST_MODE)) {
-		svm_leave_nested(svm);
+		svm_leave_nested(vcpu);
 		svm_set_gif(svm, !!(kvm_state->flags & KVM_STATE_NESTED_GIF_SET));
 		return 0;
 	}
@@ -1238,6 +1240,9 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu,
 	copy_vmcb_control_area(&hsave->control, &svm->vmcb->control);
 	hsave->save = *save;
 
+	if (is_guest_mode(vcpu))
+		svm_leave_nested(vcpu);
+
 	svm->nested.vmcb12_gpa = kvm_state->hdr.svm.vmcb_pa;
 	load_nested_vmcb_control(svm, ctl);
 	nested_prepare_vmcb_control(svm);
@@ -1252,6 +1257,7 @@ out_free:
 }
 
 struct kvm_x86_nested_ops svm_nested_ops = {
+	.leave_nested = svm_leave_nested,
 	.check_events = svm_check_nested_events,
 	.get_nested_state_pages = svm_get_nested_state_pages,
 	.get_state = svm_get_nested_state,
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 2e6332af98aba..fa543c355fbdb 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -279,7 +279,7 @@ int svm_set_efer(struct kvm_vcpu *vcpu, u64 efer)
 
 	if ((old_efer & EFER_SVME) != (efer & EFER_SVME)) {
 		if (!(efer & EFER_SVME)) {
-			svm_leave_nested(svm);
+			svm_leave_nested(vcpu);
 			svm_set_gif(svm, true);
 
 			/*
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index be74e22b82ea7..2c007241fbf53 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -393,7 +393,7 @@ static inline bool nested_exit_on_nmi(struct vcpu_svm *svm)
 
 int enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa,
 			 struct vmcb *nested_vmcb);
-void svm_leave_nested(struct vcpu_svm *svm);
+void svm_leave_nested(struct kvm_vcpu *vcpu);
 void svm_free_nested(struct vcpu_svm *svm);
 int svm_allocate_nested(struct vcpu_svm *svm);
 int nested_svm_vmrun(struct vcpu_svm *svm);
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 36661b15c3d04..0c2389d0fdafe 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -6628,6 +6628,7 @@ __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
 }
 
 struct kvm_x86_nested_ops vmx_nested_ops = {
+	.leave_nested = vmx_leave_nested,
 	.check_events = vmx_check_nested_events,
 	.hv_timer_pending = nested_vmx_preemption_timer_pending,
 	.get_state = vmx_get_nested_state,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7871b8e84b368..a5d6d79b023bc 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4391,6 +4391,8 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
 				vcpu->arch.hflags |= HF_SMM_MASK;
 			else
 				vcpu->arch.hflags &= ~HF_SMM_MASK;
+
+			kvm_x86_ops.nested_ops->leave_nested(vcpu);
 			kvm_smm_changed(vcpu);
 		}
 
-- 
GitLab


From d4e4e61d4a5b87bfc9953c306a11d35d869417fd Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Tue, 11 Jan 2022 15:23:09 -0800
Subject: [PATCH 3564/4878] psi: Fix uaf issue when psi trigger is destroyed
 while being polled

commit a06247c6804f1a7c86a2e5398a4c1f1db1471848 upstream.

With write operation on psi files replacing old trigger with a new one,
the lifetime of its waitqueue is totally arbitrary. Overwriting an
existing trigger causes its waitqueue to be freed and pending poll()
will stumble on trigger->event_wait which was destroyed.
Fix this by disallowing to redefine an existing psi trigger. If a write
operation is used on a file descriptor with an already existing psi
trigger, the operation will fail with EBUSY error.
Also bypass a check for psi_disabled in the psi_trigger_destroy as the
flag can be flipped after the trigger is created, leading to a memory
leak.

Fixes: 0e94682b73bf ("psi: introduce psi monitor")
Reported-by: syzbot+cdb5dd11c97cc532efad@syzkaller.appspotmail.com
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Analyzed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220111232309.1786347-1-surenb@google.com
[surenb: backported to 5.10 kernel]
CC: stable@vger.kernel.org # 5.10
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/accounting/psi.rst |  3 +-
 include/linux/psi.h              |  2 +-
 include/linux/psi_types.h        |  3 --
 kernel/cgroup/cgroup.c           | 11 ++++--
 kernel/sched/psi.c               | 66 ++++++++++++++------------------
 5 files changed, 40 insertions(+), 45 deletions(-)

diff --git a/Documentation/accounting/psi.rst b/Documentation/accounting/psi.rst
index f2b3439edcc2c..860fe651d6453 100644
--- a/Documentation/accounting/psi.rst
+++ b/Documentation/accounting/psi.rst
@@ -92,7 +92,8 @@ Triggers can be set on more than one psi metric and more than one trigger
 for the same psi metric can be specified. However for each trigger a separate
 file descriptor is required to be able to poll it separately from others,
 therefore for each trigger a separate open() syscall should be made even
-when opening the same psi interface file.
+when opening the same psi interface file. Write operations to a file descriptor
+with an already existing psi trigger will fail with EBUSY.
 
 Monitors activate only when system enters stall state for the monitored
 psi metric and deactivates upon exit from the stall state. While system is
diff --git a/include/linux/psi.h b/include/linux/psi.h
index 7361023f3fdd5..db4ecfaab8792 100644
--- a/include/linux/psi.h
+++ b/include/linux/psi.h
@@ -33,7 +33,7 @@ void cgroup_move_task(struct task_struct *p, struct css_set *to);
 
 struct psi_trigger *psi_trigger_create(struct psi_group *group,
 			char *buf, size_t nbytes, enum psi_res res);
-void psi_trigger_replace(void **trigger_ptr, struct psi_trigger *t);
+void psi_trigger_destroy(struct psi_trigger *t);
 
 __poll_t psi_trigger_poll(void **trigger_ptr, struct file *file,
 			poll_table *wait);
diff --git a/include/linux/psi_types.h b/include/linux/psi_types.h
index b95f3211566a2..17d74f62c1818 100644
--- a/include/linux/psi_types.h
+++ b/include/linux/psi_types.h
@@ -128,9 +128,6 @@ struct psi_trigger {
 	 * events to one per window
 	 */
 	u64 last_event_time;
-
-	/* Refcounting to prevent premature destruction */
-	struct kref refcount;
 };
 
 struct psi_group {
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index a86857edaa571..4927289a91a97 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -3601,6 +3601,12 @@ static ssize_t cgroup_pressure_write(struct kernfs_open_file *of, char *buf,
 	cgroup_get(cgrp);
 	cgroup_kn_unlock(of->kn);
 
+	/* Allow only one trigger per file descriptor */
+	if (of->priv) {
+		cgroup_put(cgrp);
+		return -EBUSY;
+	}
+
 	psi = cgroup_ino(cgrp) == 1 ? &psi_system : &cgrp->psi;
 	new = psi_trigger_create(psi, buf, nbytes, res);
 	if (IS_ERR(new)) {
@@ -3608,8 +3614,7 @@ static ssize_t cgroup_pressure_write(struct kernfs_open_file *of, char *buf,
 		return PTR_ERR(new);
 	}
 
-	psi_trigger_replace(&of->priv, new);
-
+	smp_store_release(&of->priv, new);
 	cgroup_put(cgrp);
 
 	return nbytes;
@@ -3644,7 +3649,7 @@ static __poll_t cgroup_pressure_poll(struct kernfs_open_file *of,
 
 static void cgroup_pressure_release(struct kernfs_open_file *of)
 {
-	psi_trigger_replace(&of->priv, NULL);
+	psi_trigger_destroy(of->priv);
 }
 #endif /* CONFIG_PSI */
 
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index d50a31ecedeec..b7f38f3ad42a2 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -1116,7 +1116,6 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group,
 	t->event = 0;
 	t->last_event_time = 0;
 	init_waitqueue_head(&t->event_wait);
-	kref_init(&t->refcount);
 
 	mutex_lock(&group->trigger_lock);
 
@@ -1145,15 +1144,19 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group,
 	return t;
 }
 
-static void psi_trigger_destroy(struct kref *ref)
+void psi_trigger_destroy(struct psi_trigger *t)
 {
-	struct psi_trigger *t = container_of(ref, struct psi_trigger, refcount);
-	struct psi_group *group = t->group;
+	struct psi_group *group;
 	struct task_struct *task_to_destroy = NULL;
 
-	if (static_branch_likely(&psi_disabled))
+	/*
+	 * We do not check psi_disabled since it might have been disabled after
+	 * the trigger got created.
+	 */
+	if (!t)
 		return;
 
+	group = t->group;
 	/*
 	 * Wakeup waiters to stop polling. Can happen if cgroup is deleted
 	 * from under a polling process.
@@ -1189,9 +1192,9 @@ static void psi_trigger_destroy(struct kref *ref)
 	mutex_unlock(&group->trigger_lock);
 
 	/*
-	 * Wait for both *trigger_ptr from psi_trigger_replace and
-	 * poll_task RCUs to complete their read-side critical sections
-	 * before destroying the trigger and optionally the poll_task
+	 * Wait for psi_schedule_poll_work RCU to complete its read-side
+	 * critical section before destroying the trigger and optionally the
+	 * poll_task.
 	 */
 	synchronize_rcu();
 	/*
@@ -1208,18 +1211,6 @@ static void psi_trigger_destroy(struct kref *ref)
 	kfree(t);
 }
 
-void psi_trigger_replace(void **trigger_ptr, struct psi_trigger *new)
-{
-	struct psi_trigger *old = *trigger_ptr;
-
-	if (static_branch_likely(&psi_disabled))
-		return;
-
-	rcu_assign_pointer(*trigger_ptr, new);
-	if (old)
-		kref_put(&old->refcount, psi_trigger_destroy);
-}
-
 __poll_t psi_trigger_poll(void **trigger_ptr,
 				struct file *file, poll_table *wait)
 {
@@ -1229,24 +1220,15 @@ __poll_t psi_trigger_poll(void **trigger_ptr,
 	if (static_branch_likely(&psi_disabled))
 		return DEFAULT_POLLMASK | EPOLLERR | EPOLLPRI;
 
-	rcu_read_lock();
-
-	t = rcu_dereference(*(void __rcu __force **)trigger_ptr);
-	if (!t) {
-		rcu_read_unlock();
+	t = smp_load_acquire(trigger_ptr);
+	if (!t)
 		return DEFAULT_POLLMASK | EPOLLERR | EPOLLPRI;
-	}
-	kref_get(&t->refcount);
-
-	rcu_read_unlock();
 
 	poll_wait(file, &t->event_wait, wait);
 
 	if (cmpxchg(&t->event, 1, 0) == 1)
 		ret |= EPOLLPRI;
 
-	kref_put(&t->refcount, psi_trigger_destroy);
-
 	return ret;
 }
 
@@ -1270,14 +1252,24 @@ static ssize_t psi_write(struct file *file, const char __user *user_buf,
 
 	buf[buf_size - 1] = '\0';
 
-	new = psi_trigger_create(&psi_system, buf, nbytes, res);
-	if (IS_ERR(new))
-		return PTR_ERR(new);
-
 	seq = file->private_data;
+
 	/* Take seq->lock to protect seq->private from concurrent writes */
 	mutex_lock(&seq->lock);
-	psi_trigger_replace(&seq->private, new);
+
+	/* Allow only one trigger per file descriptor */
+	if (seq->private) {
+		mutex_unlock(&seq->lock);
+		return -EBUSY;
+	}
+
+	new = psi_trigger_create(&psi_system, buf, nbytes, res);
+	if (IS_ERR(new)) {
+		mutex_unlock(&seq->lock);
+		return PTR_ERR(new);
+	}
+
+	smp_store_release(&seq->private, new);
 	mutex_unlock(&seq->lock);
 
 	return nbytes;
@@ -1312,7 +1304,7 @@ static int psi_fop_release(struct inode *inode, struct file *file)
 {
 	struct seq_file *seq = file->private_data;
 
-	psi_trigger_replace(&seq->private, NULL);
+	psi_trigger_destroy(seq->private);
 	return single_release(inode, file);
 }
 
-- 
GitLab


From fbdbf6743f777729aadd00c4444234770f8dd042 Mon Sep 17 00:00:00 2001
From: Tony Luck <tony.luck@intel.com>
Date: Fri, 19 Mar 2021 10:39:19 -0700
Subject: [PATCH 3565/4878] x86/mce: Add Xeon Sapphire Rapids to list of CPUs
 that support PPIN

commit a331f5fdd36dba1ffb0239a4dfaaf1df91ff1aab upstream.

New CPU model, same MSRs to control and read the inventory number.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210319173919.291428-1-tony.luck@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/mce/intel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/intel.c
index 2577d78757810..7cf08c1f082e0 100644
--- a/arch/x86/kernel/cpu/mce/intel.c
+++ b/arch/x86/kernel/cpu/mce/intel.c
@@ -486,6 +486,7 @@ static void intel_ppin_init(struct cpuinfo_x86 *c)
 	case INTEL_FAM6_BROADWELL_X:
 	case INTEL_FAM6_SKYLAKE_X:
 	case INTEL_FAM6_ICELAKE_X:
+	case INTEL_FAM6_SAPPHIRERAPIDS_X:
 	case INTEL_FAM6_XEON_PHI_KNL:
 	case INTEL_FAM6_XEON_PHI_KNM:
 
-- 
GitLab


From 46f919c6bdc564528a96971060576b4024f68a49 Mon Sep 17 00:00:00 2001
From: Tony Luck <tony.luck@intel.com>
Date: Fri, 21 Jan 2022 09:47:38 -0800
Subject: [PATCH 3566/4878] x86/cpu: Add Xeon Icelake-D to list of CPUs that
 support PPIN

commit e464121f2d40eabc7d11823fb26db807ce945df4 upstream.

Missed adding the Icelake-D CPU to the list. It uses the same MSRs
to control and read the inventory number as all the other models.

Fixes: dc6b025de95b ("x86/mce: Add Xeon Icelake to list of CPUs that support PPIN")
Reported-by: Ailin Xu <ailin.xu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220121174743.1875294-2-tony.luck@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/mce/intel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/intel.c
index 7cf08c1f082e0..886d4648c9dd4 100644
--- a/arch/x86/kernel/cpu/mce/intel.c
+++ b/arch/x86/kernel/cpu/mce/intel.c
@@ -486,6 +486,7 @@ static void intel_ppin_init(struct cpuinfo_x86 *c)
 	case INTEL_FAM6_BROADWELL_X:
 	case INTEL_FAM6_SKYLAKE_X:
 	case INTEL_FAM6_ICELAKE_X:
+	case INTEL_FAM6_ICELAKE_D:
 	case INTEL_FAM6_SAPPHIRERAPIDS_X:
 	case INTEL_FAM6_XEON_PHI_KNL:
 	case INTEL_FAM6_XEON_PHI_KNM:
-- 
GitLab


From ac4ba79bb02881ed714adaa89faee601a18bff6d Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Thu, 19 Aug 2021 15:59:30 +0200
Subject: [PATCH 3567/4878] drm/vc4: hdmi: Make sure the device is powered with
 CEC

Commit 20b0dfa86bef0e80b41b0e5ac38b92f23b6f27f9 upstream.

The original commit depended on a rework commit (724fc856c09e ("drm/vc4:
hdmi: Split the CEC disable / enable functions in two")) that
(rightfully) didn't reach stable.

However, probably because the context changed, when the patch was
applied to stable the pm_runtime_put called got moved to the end of the
vc4_hdmi_cec_adap_enable function (that would have become
vc4_hdmi_cec_disable with the rework) to vc4_hdmi_cec_init.

This means that at probe time, we now drop our reference to the clocks
and power domains and thus end up with a CPU hang when the CPU tries to
access registers.

The call to pm_runtime_resume_and_get() is also problematic since the
.adap_enable CEC hook is called both to enable and to disable the
controller. That means that we'll now call pm_runtime_resume_and_get()
at disable time as well, messing with the reference counting.

The behaviour we should have though would be to have
pm_runtime_resume_and_get() called when the CEC controller is enabled,
and pm_runtime_put when it's disabled.

We need to move things around a bit to behave that way, but it aligns
stable with upstream.

Cc: <stable@vger.kernel.org> # 5.10.x
Cc: <stable@vger.kernel.org> # 5.15.x
Cc: <stable@vger.kernel.org> # 5.16.x
Reported-by: Michael Stapelberg <michael+drm@stapelberg.ch>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 9392de2679a1d..8eac7dc637b0f 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1402,18 +1402,18 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
 	u32 val;
 	int ret;
 
-	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
-	if (ret)
-		return ret;
+	if (enable) {
+		ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
+		if (ret)
+			return ret;
 
-	val = HDMI_READ(HDMI_CEC_CNTRL_5);
-	val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
-		 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
-		 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
-	val |= ((4700 / usecs) << VC4_HDMI_CEC_CNT_TO_4700_US_SHIFT) |
-	       ((4500 / usecs) << VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT);
+		val = HDMI_READ(HDMI_CEC_CNTRL_5);
+		val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
+			 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
+			 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
+		val |= ((4700 / usecs) << VC4_HDMI_CEC_CNT_TO_4700_US_SHIFT) |
+			((4500 / usecs) << VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT);
 
-	if (enable) {
 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
 			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val);
@@ -1439,7 +1439,10 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
 		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC);
 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
 			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
+
+		pm_runtime_put(&vc4_hdmi->pdev->dev);
 	}
+
 	return 0;
 }
 
@@ -1531,8 +1534,6 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi)
 	if (ret < 0)
 		goto err_delete_cec_adap;
 
-	pm_runtime_put(&vc4_hdmi->pdev->dev);
-
 	return 0;
 
 err_delete_cec_adap:
-- 
GitLab


From 1fc3444cda9a78c65b769e3fa93455e09ff7a0d3 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Thu, 20 Jan 2022 11:04:01 -0600
Subject: [PATCH 3568/4878] cgroup-v1: Require capabilities to set
 release_agent

commit 24f6008564183aa120d07c03d9289519c2fe02af upstream.

The cgroup release_agent is called with call_usermodehelper.  The function
call_usermodehelper starts the release_agent with a full set fo capabilities.
Therefore require capabilities when setting the release_agaent.

Reported-by: Tabitha Sable <tabitha.c.sable@gmail.com>
Tested-by: Tabitha Sable <tabitha.c.sable@gmail.com>
Fixes: 81a6a5cdd2c5 ("Task Control Groups: automatic userspace notification of idle cgroups")
Cc: stable@vger.kernel.org # v2.6.24+
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/cgroup/cgroup-v1.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
index 7f71b54c06c5f..69fba563c810e 100644
--- a/kernel/cgroup/cgroup-v1.c
+++ b/kernel/cgroup/cgroup-v1.c
@@ -545,6 +545,14 @@ static ssize_t cgroup_release_agent_write(struct kernfs_open_file *of,
 
 	BUILD_BUG_ON(sizeof(cgrp->root->release_agent_path) < PATH_MAX);
 
+	/*
+	 * Release agent gets called with all capabilities,
+	 * require capabilities to set release agent.
+	 */
+	if ((of->file->f_cred->user_ns != &init_user_ns) ||
+	    !capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	cgrp = cgroup_kn_lock_live(of->kn, false);
 	if (!cgrp)
 		return -ENODEV;
@@ -958,6 +966,12 @@ int cgroup1_parse_param(struct fs_context *fc, struct fs_parameter *param)
 		/* Specifying two release agents is forbidden */
 		if (ctx->release_agent)
 			return invalfc(fc, "release_agent respecified");
+		/*
+		 * Release agent gets called with all capabilities,
+		 * require capabilities to set release agent.
+		 */
+		if ((fc->user_ns != &init_user_ns) || !capable(CAP_SYS_ADMIN))
+			return invalfc(fc, "Setting release_agent not allowed");
 		ctx->release_agent = param->string;
 		param->string = NULL;
 		break;
-- 
GitLab


From a01ee1b8165f4161459b5ec4e728bc7130fe8cd4 Mon Sep 17 00:00:00 2001
From: Maor Dickman <maord@nvidia.com>
Date: Thu, 13 Jan 2022 15:11:42 +0200
Subject: [PATCH 3569/4878] net/mlx5e: Fix handling of wrong devices during
 bond netevent

commit ec41332e02bd0acf1f24206867bb6a02f5877a62 upstream.

Current implementation of bond netevent handler only check if
the handled netdev is VF representor and it missing a check if
the VF representor is on the same phys device of the bond handling
the netevent.

Fix by adding the missing check and optimizing the check if
the netdev is VF representor so it will not access uninitialized
private data and crashes.

BUG: kernel NULL pointer dereference, address: 000000000000036c
PGD 0 P4D 0
Oops: 0000 [#1] SMP NOPTI
Workqueue: eth3bond0 bond_mii_monitor [bonding]
RIP: 0010:mlx5e_is_uplink_rep+0xc/0x50 [mlx5_core]
RSP: 0018:ffff88812d69fd60 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff8881cf800000 RCX: 0000000000000000
RDX: ffff88812d69fe10 RSI: 000000000000001b RDI: ffff8881cf800880
RBP: ffff8881cf800000 R08: 00000445cabccf2b R09: 0000000000000008
R10: 0000000000000004 R11: 0000000000000008 R12: ffff88812d69fe10
R13: 00000000fffffffe R14: ffff88820c0f9000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88846fb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000000036c CR3: 0000000103d80006 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mlx5e_eswitch_uplink_rep+0x31/0x40 [mlx5_core]
 mlx5e_rep_is_lag_netdev+0x94/0xc0 [mlx5_core]
 mlx5e_rep_esw_bond_netevent+0xeb/0x3d0 [mlx5_core]
 raw_notifier_call_chain+0x41/0x60
 call_netdevice_notifiers_info+0x34/0x80
 netdev_lower_state_changed+0x4e/0xa0
 bond_mii_monitor+0x56b/0x640 [bonding]
 process_one_work+0x1b9/0x390
 worker_thread+0x4d/0x3d0
 ? rescuer_thread+0x350/0x350
 kthread+0x124/0x150
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x1f/0x30

Fixes: 7e51891a237f ("net/mlx5e: Use netdev events to set/del egress acl forward-to-vport rule")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/mellanox/mlx5/core/en/rep/bond.c | 32 ++++++++-----------
 1 file changed, 14 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bond.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bond.c
index 9c076aa20306a..b6f5c1bcdbcd4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bond.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/bond.c
@@ -183,18 +183,7 @@ void mlx5e_rep_bond_unslave(struct mlx5_eswitch *esw,
 
 static bool mlx5e_rep_is_lag_netdev(struct net_device *netdev)
 {
-	struct mlx5e_rep_priv *rpriv;
-	struct mlx5e_priv *priv;
-
-	/* A given netdev is not a representor or not a slave of LAG configuration */
-	if (!mlx5e_eswitch_rep(netdev) || !netif_is_lag_port(netdev))
-		return false;
-
-	priv = netdev_priv(netdev);
-	rpriv = priv->ppriv;
-
-	/* Egress acl forward to vport is supported only non-uplink representor */
-	return rpriv->rep->vport != MLX5_VPORT_UPLINK;
+	return netif_is_lag_port(netdev) && mlx5e_eswitch_vf_rep(netdev);
 }
 
 static void mlx5e_rep_changelowerstate_event(struct net_device *netdev, void *ptr)
@@ -210,9 +199,6 @@ static void mlx5e_rep_changelowerstate_event(struct net_device *netdev, void *pt
 	u16 fwd_vport_num;
 	int err;
 
-	if (!mlx5e_rep_is_lag_netdev(netdev))
-		return;
-
 	info = ptr;
 	lag_info = info->lower_state_info;
 	/* This is not an event of a representor becoming active slave */
@@ -266,9 +252,6 @@ static void mlx5e_rep_changeupper_event(struct net_device *netdev, void *ptr)
 	struct net_device *lag_dev;
 	struct mlx5e_priv *priv;
 
-	if (!mlx5e_rep_is_lag_netdev(netdev))
-		return;
-
 	priv = netdev_priv(netdev);
 	rpriv = priv->ppriv;
 	lag_dev = info->upper_dev;
@@ -293,6 +276,19 @@ static int mlx5e_rep_esw_bond_netevent(struct notifier_block *nb,
 				       unsigned long event, void *ptr)
 {
 	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
+	struct mlx5e_rep_priv *rpriv;
+	struct mlx5e_rep_bond *bond;
+	struct mlx5e_priv *priv;
+
+	if (!mlx5e_rep_is_lag_netdev(netdev))
+		return NOTIFY_DONE;
+
+	bond = container_of(nb, struct mlx5e_rep_bond, nb);
+	priv = netdev_priv(netdev);
+	rpriv = mlx5_eswitch_get_uplink_priv(priv->mdev->priv.eswitch, REP_ETH);
+	/* Verify VF representor is on the same device of the bond handling the netevent. */
+	if (rpriv->uplink_priv.bond != bond)
+		return NOTIFY_DONE;
 
 	switch (event) {
 	case NETDEV_CHANGELOWERSTATE:
-- 
GitLab


From 502c37b033fab7cde3e95a570af4f073306be45e Mon Sep 17 00:00:00 2001
From: Maher Sanalla <msanalla@nvidia.com>
Date: Thu, 13 Jan 2022 15:48:48 +0200
Subject: [PATCH 3570/4878] net/mlx5: Use del_timer_sync in fw reset flow of
 halting poll

commit 3c5193a87b0fea090aa3f769d020337662d87b5e upstream.

Substitute del_timer() with del_timer_sync() in fw reset polling
deactivation flow, in order to prevent a race condition which occurs
when del_timer() is called and timer is deactivated while another
process is handling the timer interrupt. A situation that led to
the following call trace:
	RIP: 0010:run_timer_softirq+0x137/0x420
	<IRQ>
	recalibrate_cpu_khz+0x10/0x10
	ktime_get+0x3e/0xa0
	? sched_clock_cpu+0xb/0xc0
	__do_softirq+0xf5/0x2ea
	irq_exit_rcu+0xc1/0xf0
	sysvec_apic_timer_interrupt+0x9e/0xc0
	asm_sysvec_apic_timer_interrupt+0x12/0x20
	</IRQ>

Fixes: 38b9f903f22b ("net/mlx5: Handle sync reset request event")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
index ee710ce007950..9b472e793ee36 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c
@@ -131,7 +131,7 @@ static void mlx5_stop_sync_reset_poll(struct mlx5_core_dev *dev)
 {
 	struct mlx5_fw_reset *fw_reset = dev->priv.fw_reset;
 
-	del_timer(&fw_reset->timer);
+	del_timer_sync(&fw_reset->timer);
 }
 
 static void mlx5_sync_reset_clear_reset_requested(struct mlx5_core_dev *dev, bool poll_health)
-- 
GitLab


From b4ced7a46d9f51d3b48ad7c024da288723afacaf Mon Sep 17 00:00:00 2001
From: Maor Dickman <maord@nvidia.com>
Date: Sun, 30 Jan 2022 16:00:41 +0200
Subject: [PATCH 3571/4878] net/mlx5: E-Switch, Fix uninitialized variable
 modact

commit d8e5883d694bb053b19c4142a2d1f43a34f6fe2c upstream.

The variable modact is not initialized before used in command
modify header allocation which can cause command to fail.

Fix by initializing modact with zeros.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 8f1e0b97cc70 ("net/mlx5: E-Switch, Mark miss packets with new chain id mapping")
Signed-off-by: Maor Dickman <maord@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c
index 947f346bdc2d6..77c6287c90d55 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/fs_chains.c
@@ -292,7 +292,7 @@ static int
 create_chain_restore(struct fs_chain *chain)
 {
 	struct mlx5_eswitch *esw = chain->chains->dev->priv.eswitch;
-	char modact[MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto)];
+	u8 modact[MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto)] = {};
 	struct mlx5_fs_chains *chains = chain->chains;
 	enum mlx5e_tc_attr_to_reg chain_to_reg;
 	struct mlx5_modify_hdr *mod_hdr;
-- 
GitLab


From 77534b114f240d8a3296cfc576f0608880d2e5ed Mon Sep 17 00:00:00 2001
From: Georgi Valkov <gvalkov@abv.bg>
Date: Tue, 1 Feb 2022 08:16:18 +0100
Subject: [PATCH 3572/4878] ipheth: fix EOVERFLOW in ipheth_rcvbulk_callback

commit 63e4b45c82ed1bde979da7052229a4229ce9cabf upstream.

When rx_buf is allocated we need to account for IPHETH_IP_ALIGN,
which reduces the usable size by 2 bytes. Otherwise we have 1512
bytes usable instead of 1514, and if we receive more than 1512
bytes, ipheth_rcvbulk_callback is called with status -EOVERFLOW,
after which the driver malfunctiones and all communication stops.

Resolves ipheth 2-1:4.2: ipheth_rcvbulk_callback: urb status: -75

Fixes: f33d9e2b48a3 ("usbnet: ipheth: fix connectivity with iOS 14")
Signed-off-by: Georgi Valkov <gvalkov@abv.bg>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Link: https://lore.kernel.org/all/B60B8A4B-92A0-49B3-805D-809A2433B46C@abv.bg/
Link: https://lore.kernel.org/all/24851bd2769434a5fc24730dce8e8a984c5a4505.1643699778.git.jan.kiszka@siemens.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/ipheth.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 207e59e74935a..06d9f19ca142a 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -121,7 +121,7 @@ static int ipheth_alloc_urbs(struct ipheth_device *iphone)
 	if (tx_buf == NULL)
 		goto free_rx_urb;
 
-	rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
+	rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE + IPHETH_IP_ALIGN,
 				    GFP_KERNEL, &rx_urb->transfer_dma);
 	if (rx_buf == NULL)
 		goto free_tx_buf;
@@ -146,7 +146,7 @@ error_nomem:
 
 static void ipheth_free_urbs(struct ipheth_device *iphone)
 {
-	usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
+	usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE + IPHETH_IP_ALIGN, iphone->rx_buf,
 			  iphone->rx_urb->transfer_dma);
 	usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
 			  iphone->tx_urb->transfer_dma);
@@ -317,7 +317,7 @@ static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags)
 
 	usb_fill_bulk_urb(dev->rx_urb, udev,
 			  usb_rcvbulkpipe(udev, dev->bulk_in),
-			  dev->rx_buf, IPHETH_BUF_SIZE,
+			  dev->rx_buf, IPHETH_BUF_SIZE + IPHETH_IP_ALIGN,
 			  ipheth_rcvbulk_callback,
 			  dev);
 	dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-- 
GitLab


From cadfa7dce526334d7ae1425cdc66c626f8adfbf5 Mon Sep 17 00:00:00 2001
From: Raju Rangoju <Raju.Rangoju@amd.com>
Date: Thu, 27 Jan 2022 11:32:22 +0530
Subject: [PATCH 3573/4878] net: amd-xgbe: ensure to reset the tx_timer_active
 flag

commit 7674b7b559b683478c3832527c59bceb169e701d upstream.

Ensure to reset the tx_timer_active flag in xgbe_stop(),
otherwise a port restart may result in tx timeout due to
uncleared flag.

Fixes: c635eaacbf77 ("amd-xgbe: Remove Tx coalescing")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220127060222.453371-1-Raju.Rangoju@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 395eb0b526802..66e71fa506879 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -721,7 +721,9 @@ static void xgbe_stop_timers(struct xgbe_prv_data *pdata)
 		if (!channel->tx_ring)
 			break;
 
+		/* Deactivate the Tx timer */
 		del_timer_sync(&channel->tx_timer);
+		channel->tx_timer_active = 0;
 	}
 }
 
-- 
GitLab


From 4d3fcfe8464838b3920bc2b939d888e0b792934e Mon Sep 17 00:00:00 2001
From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Date: Thu, 27 Jan 2022 14:50:03 +0530
Subject: [PATCH 3574/4878] net: amd-xgbe: Fix skb data length underflow

commit 5aac9108a180fc06e28d4e7fb00247ce603b72ee upstream.

There will be BUG_ON() triggered in include/linux/skbuff.h leading to
intermittent kernel panic, when the skb length underflow is detected.

Fix this by dropping the packet if such length underflows are seen
because of inconsistencies in the hardware descriptors.

Fixes: 622c36f143fc ("amd-xgbe: Fix jumbo MTU processing on newer hardware")
Suggested-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220127092003.2812745-1-Shyam-sundar.S-k@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 66e71fa506879..a816b30bca04c 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -2559,6 +2559,14 @@ read_again:
 			buf2_len = xgbe_rx_buf2_len(rdata, packet, len);
 			len += buf2_len;
 
+			if (buf2_len > rdata->rx.buf.dma_len) {
+				/* Hardware inconsistency within the descriptors
+				 * that has resulted in a length underflow.
+				 */
+				error = 1;
+				goto skip_data;
+			}
+
 			if (!skb) {
 				skb = xgbe_create_skb(pdata, napi, rdata,
 						      buf1_len);
@@ -2588,8 +2596,10 @@ skip_data:
 		if (!last || context_next)
 			goto read_again;
 
-		if (!skb)
+		if (!skb || error) {
+			dev_kfree_skb(skb);
 			goto next_packet;
+		}
 
 		/* Be sure we don't exceed the configured MTU */
 		max_len = netdev->mtu + ETH_HLEN;
-- 
GitLab


From 7b4741644cf718c422187e74fb07661ef1d68e85 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 28 Jan 2022 22:57:01 +0300
Subject: [PATCH 3575/4878] fanotify: Fix stale file descriptor in
 copy_event_to_user()

commit ee12595147ac1fbfb5bcb23837e26dd58d94b15d upstream.

This code calls fd_install() which gives the userspace access to the fd.
Then if copy_info_records_to_user() fails it calls put_unused_fd(fd) but
that will not release it and leads to a stale entry in the file
descriptor table.

Generally you can't trust the fd after a call to fd_install().  The fix
is to delay the fd_install() until everything else has succeeded.

Fortunately it requires CAP_SYS_ADMIN to reach this code so the security
impact is less.

Fixes: f644bc449b37 ("fanotify: fix copy_event_to_user() fid error clean up")
Link: https://lore.kernel.org/r/20220128195656.GA26981@kili
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mathias Krause <minipli@grsecurity.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/notify/fanotify/fanotify_user.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 086b6bacbad17..18e014fa06480 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -366,9 +366,6 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
 	if (fanotify_is_perm_event(event->mask))
 		FANOTIFY_PERM(event)->fd = fd;
 
-	if (f)
-		fd_install(fd, f);
-
 	/* Event info records order is: dir fid + name, child fid */
 	if (fanotify_event_dir_fh_len(event)) {
 		info_type = info->name_len ? FAN_EVENT_INFO_TYPE_DFID_NAME :
@@ -432,6 +429,9 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
 		count -= ret;
 	}
 
+	if (f)
+		fd_install(fd, f);
+
 	return metadata.event_len;
 
 out_close_fd:
-- 
GitLab


From e7be56926397cf9d992be8913f74a76152f8f08d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 31 Jan 2022 09:20:18 -0800
Subject: [PATCH 3576/4878] net: sched: fix use-after-free in tc_new_tfilter()

commit 04c2a47ffb13c29778e2a14e414ad4cb5a5db4b5 upstream.

Whenever tc_new_tfilter() jumps back to replay: label,
we need to make sure @q and @chain local variables are cleared again,
or risk use-after-free as in [1]

For consistency, apply the same fix in tc_ctl_chain()

BUG: KASAN: use-after-free in mini_qdisc_pair_swap+0x1b9/0x1f0 net/sched/sch_generic.c:1581
Write of size 8 at addr ffff8880985c4b08 by task syz-executor.4/1945

CPU: 0 PID: 1945 Comm: syz-executor.4 Not tainted 5.17.0-rc1-syzkaller-00495-gff58831fa02d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x336 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
 mini_qdisc_pair_swap+0x1b9/0x1f0 net/sched/sch_generic.c:1581
 tcf_chain_head_change_item net/sched/cls_api.c:372 [inline]
 tcf_chain0_head_change.isra.0+0xb9/0x120 net/sched/cls_api.c:386
 tcf_chain_tp_insert net/sched/cls_api.c:1657 [inline]
 tcf_chain_tp_insert_unique net/sched/cls_api.c:1707 [inline]
 tc_new_tfilter+0x1e67/0x2350 net/sched/cls_api.c:2086
 rtnetlink_rcv_msg+0x80d/0xb80 net/core/rtnetlink.c:5583
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x331/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmmsg+0x195/0x470 net/socket.c:2553
 __do_sys_sendmmsg net/socket.c:2582 [inline]
 __se_sys_sendmmsg net/socket.c:2579 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2647172059
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2645aa5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f2647285100 RCX: 00007f2647172059
RDX: 040000000000009f RSI: 00000000200002c0 RDI: 0000000000000006
RBP: 00007f26471cc08d R08: 0000000000000000 R09: 0000000000000000
R10: 9e00000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb3f7f02f R14: 00007f2645aa5300 R15: 0000000000022000
 </TASK>

Allocated by task 1944:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:436 [inline]
 ____kasan_kmalloc mm/kasan/common.c:515 [inline]
 ____kasan_kmalloc mm/kasan/common.c:474 [inline]
 __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:524
 kmalloc_node include/linux/slab.h:604 [inline]
 kzalloc_node include/linux/slab.h:726 [inline]
 qdisc_alloc+0xac/0xa10 net/sched/sch_generic.c:941
 qdisc_create.constprop.0+0xce/0x10f0 net/sched/sch_api.c:1211
 tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5592
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x331/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmmsg+0x195/0x470 net/socket.c:2553
 __do_sys_sendmmsg net/socket.c:2582 [inline]
 __se_sys_sendmmsg net/socket.c:2579 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Freed by task 3609:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:45
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free+0x130/0x160 mm/kasan/common.c:328
 kasan_slab_free include/linux/kasan.h:236 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1754
 slab_free mm/slub.c:3509 [inline]
 kfree+0xcb/0x280 mm/slub.c:4562
 rcu_do_batch kernel/rcu/tree.c:2527 [inline]
 rcu_core+0x7b8/0x1540 kernel/rcu/tree.c:2778
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Last potentially related work creation:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348
 __call_rcu kernel/rcu/tree.c:3026 [inline]
 call_rcu+0xb1/0x740 kernel/rcu/tree.c:3106
 qdisc_put_unlocked+0x6f/0x90 net/sched/sch_generic.c:1109
 tcf_block_release+0x86/0x90 net/sched/cls_api.c:1238
 tc_new_tfilter+0xc0d/0x2350 net/sched/cls_api.c:2148
 rtnetlink_rcv_msg+0x80d/0xb80 net/core/rtnetlink.c:5583
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x331/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmmsg+0x195/0x470 net/socket.c:2553
 __do_sys_sendmmsg net/socket.c:2582 [inline]
 __se_sys_sendmmsg net/socket.c:2579 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

The buggy address belongs to the object at ffff8880985c4800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 776 bytes inside of
 1024-byte region [ffff8880985c4800, ffff8880985c4c00)
The buggy address belongs to the page:
page:ffffea0002617000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x985c0
head:ffffea0002617000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888010c41dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 1941, ts 1038999441284, free_ts 1033444432829
 prep_new_page mm/page_alloc.c:2434 [inline]
 get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4165
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5389
 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2271
 alloc_slab_page mm/slub.c:1799 [inline]
 allocate_slab mm/slub.c:1944 [inline]
 new_slab+0x28a/0x3b0 mm/slub.c:2004
 ___slab_alloc+0x87c/0xe90 mm/slub.c:3018
 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3105
 slab_alloc_node mm/slub.c:3196 [inline]
 slab_alloc mm/slub.c:3238 [inline]
 __kmalloc+0x2fb/0x340 mm/slub.c:4420
 kmalloc include/linux/slab.h:586 [inline]
 kzalloc include/linux/slab.h:715 [inline]
 __register_sysctl_table+0x112/0x1090 fs/proc/proc_sysctl.c:1335
 neigh_sysctl_register+0x2c8/0x5e0 net/core/neighbour.c:3787
 devinet_sysctl_register+0xb1/0x230 net/ipv4/devinet.c:2618
 inetdev_init+0x286/0x580 net/ipv4/devinet.c:278
 inetdev_event+0xa8a/0x15d0 net/ipv4/devinet.c:1532
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:84
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1919
 call_netdevice_notifiers_extack net/core/dev.c:1931 [inline]
 call_netdevice_notifiers net/core/dev.c:1945 [inline]
 register_netdevice+0x1073/0x1500 net/core/dev.c:9698
 veth_newlink+0x59c/0xa90 drivers/net/veth.c:1722
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1352 [inline]
 free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1404
 free_unref_page_prepare mm/page_alloc.c:3325 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3404
 release_pages+0x748/0x1220 mm/swap.c:956
 tlb_batch_pages_flush mm/mmu_gather.c:50 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:243 [inline]
 tlb_flush_mmu+0xe9/0x6b0 mm/mmu_gather.c:250
 zap_pte_range mm/memory.c:1441 [inline]
 zap_pmd_range mm/memory.c:1490 [inline]
 zap_pud_range mm/memory.c:1519 [inline]
 zap_p4d_range mm/memory.c:1540 [inline]
 unmap_page_range+0x1d1d/0x2a30 mm/memory.c:1561
 unmap_single_vma+0x198/0x310 mm/memory.c:1606
 unmap_vmas+0x16b/0x2f0 mm/memory.c:1638
 exit_mmap+0x201/0x670 mm/mmap.c:3178
 __mmput+0x122/0x4b0 kernel/fork.c:1114
 mmput+0x56/0x60 kernel/fork.c:1135
 exit_mm kernel/exit.c:507 [inline]
 do_exit+0xa3c/0x2a30 kernel/exit.c:793
 do_group_exit+0xd2/0x2f0 kernel/exit.c:935
 __do_sys_exit_group kernel/exit.c:946 [inline]
 __se_sys_exit_group kernel/exit.c:944 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:944
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Memory state around the buggy address:
 ffff8880985c4a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880985c4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880985c4b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff8880985c4b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880985c4c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

Fixes: 470502de5bdb ("net: sched: unlock rules update API")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220131172018.3704490-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/cls_api.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index cb1331b357451..7993a692c7fda 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1954,9 +1954,9 @@ static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
 	bool prio_allocate;
 	u32 parent;
 	u32 chain_index;
-	struct Qdisc *q = NULL;
+	struct Qdisc *q;
 	struct tcf_chain_info chain_info;
-	struct tcf_chain *chain = NULL;
+	struct tcf_chain *chain;
 	struct tcf_block *block;
 	struct tcf_proto *tp;
 	unsigned long cl;
@@ -1984,6 +1984,8 @@ replay:
 	tp = NULL;
 	cl = 0;
 	block = NULL;
+	q = NULL;
+	chain = NULL;
 
 	if (prio == 0) {
 		/* If no priority is provided by the user,
@@ -2804,8 +2806,8 @@ static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
 	struct tcmsg *t;
 	u32 parent;
 	u32 chain_index;
-	struct Qdisc *q = NULL;
-	struct tcf_chain *chain = NULL;
+	struct Qdisc *q;
+	struct tcf_chain *chain;
 	struct tcf_block *block;
 	unsigned long cl;
 	int err;
@@ -2815,6 +2817,7 @@ static int tc_ctl_chain(struct sk_buff *skb, struct nlmsghdr *n,
 		return -EPERM;
 
 replay:
+	q = NULL;
 	err = nlmsg_parse_deprecated(n, sizeof(*t), tca, TCA_MAX,
 				     rtm_tca_policy, extack);
 	if (err < 0)
-- 
GitLab


From 3bbe2019dd12b8d13671ee6cda055d49637b4c39 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 31 Jan 2022 17:21:06 -0800
Subject: [PATCH 3577/4878] rtnetlink: make sure to refresh master_dev/m_ops in
 __rtnl_newlink()

commit c6f6f2444bdbe0079e41914a35081530d0409963 upstream.

While looking at one unrelated syzbot bug, I found the replay logic
in __rtnl_newlink() to potentially trigger use-after-free.

It is better to clear master_dev and m_ops inside the loop,
in case we have to replay it.

Fixes: ba7d49b1f0f8 ("rtnetlink: provide api for getting and setting slave info")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20220201012106.216495-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/rtnetlink.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 27ffa83ffeb3c..373564bf57acb 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -3238,8 +3238,8 @@ static int __rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
 	struct nlattr *slave_attr[RTNL_SLAVE_MAX_TYPE + 1];
 	unsigned char name_assign_type = NET_NAME_USER;
 	struct nlattr *linkinfo[IFLA_INFO_MAX + 1];
-	const struct rtnl_link_ops *m_ops = NULL;
-	struct net_device *master_dev = NULL;
+	const struct rtnl_link_ops *m_ops;
+	struct net_device *master_dev;
 	struct net *net = sock_net(skb->sk);
 	const struct rtnl_link_ops *ops;
 	struct nlattr *tb[IFLA_MAX + 1];
@@ -3277,6 +3277,8 @@ replay:
 	else
 		dev = NULL;
 
+	master_dev = NULL;
+	m_ops = NULL;
 	if (dev) {
 		master_dev = netdev_master_upper_dev_get(dev);
 		if (master_dev)
-- 
GitLab


From aa9e96db3121c65f6459912108fe3d3f35eafd62 Mon Sep 17 00:00:00 2001
From: Tianchen Ding <dtcccc@linux.alibaba.com>
Date: Tue, 18 Jan 2022 18:05:18 +0800
Subject: [PATCH 3578/4878] cpuset: Fix the bug that subpart_cpus updated
 wrongly in update_cpumask()

commit c80d401c52a2d1baf2a5afeb06f0ffe678e56d23 upstream.

subparts_cpus should be limited as a subset of cpus_allowed, but it is
updated wrongly by using cpumask_andnot(). Use cpumask_and() instead to
fix it.

Fixes: ee8dde0cd2ce ("cpuset: Add new v2 cpuset.sched.partition flag")
Signed-off-by: Tianchen Ding <dtcccc@linux.alibaba.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/cgroup/cpuset.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 1999fcec45c71..7c7758a9e2c24 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1566,8 +1566,7 @@ static int update_cpumask(struct cpuset *cs, struct cpuset *trialcs,
 	 * Make sure that subparts_cpus is a subset of cpus_allowed.
 	 */
 	if (cs->nr_subparts_cpus) {
-		cpumask_andnot(cs->subparts_cpus, cs->subparts_cpus,
-			       cs->cpus_allowed);
+		cpumask_and(cs->subparts_cpus, cs->subparts_cpus, cs->cpus_allowed);
 		cs->nr_subparts_cpus = cpumask_weight(cs->subparts_cpus);
 	}
 	spin_unlock_irq(&callback_lock);
-- 
GitLab


From 32e179971085832f5335e308774a04dd1147a316 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 31 Jan 2022 18:23:58 -0800
Subject: [PATCH 3579/4878] af_packet: fix data-race in packet_setsockopt /
 packet_setsockopt

commit e42e70ad6ae2ae511a6143d2e8da929366e58bd9 upstream.

When packet_setsockopt( PACKET_FANOUT_DATA ) reads po->fanout,
no lock is held, meaning that another thread can change po->fanout.

Given that po->fanout can only be set once during the socket lifetime
(it is only cleared from fanout_release()), we can use
READ_ONCE()/WRITE_ONCE() to document the race.

BUG: KCSAN: data-race in packet_setsockopt / packet_setsockopt

write to 0xffff88813ae8e300 of 8 bytes by task 14653 on cpu 0:
 fanout_add net/packet/af_packet.c:1791 [inline]
 packet_setsockopt+0x22fe/0x24a0 net/packet/af_packet.c:3931
 __sys_setsockopt+0x209/0x2a0 net/socket.c:2180
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff88813ae8e300 of 8 bytes by task 14654 on cpu 1:
 packet_setsockopt+0x691/0x24a0 net/packet/af_packet.c:3935
 __sys_setsockopt+0x209/0x2a0 net/socket.c:2180
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000000000000000 -> 0xffff888106f8c000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 14654 Comm: syz-executor.3 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 47dceb8ecdc1 ("packet: add classic BPF fanout mode")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220201022358.330621-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/packet/af_packet.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 6ef035494f30d..a31334b92be7e 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1750,7 +1750,10 @@ static int fanout_add(struct sock *sk, struct fanout_args *args)
 		err = -ENOSPC;
 		if (refcount_read(&match->sk_ref) < match->max_num_members) {
 			__dev_remove_pack(&po->prot_hook);
-			po->fanout = match;
+
+			/* Paired with packet_setsockopt(PACKET_FANOUT_DATA) */
+			WRITE_ONCE(po->fanout, match);
+
 			po->rollover = rollover;
 			rollover = NULL;
 			refcount_set(&match->sk_ref, refcount_read(&match->sk_ref) + 1);
@@ -3906,7 +3909,8 @@ packet_setsockopt(struct socket *sock, int level, int optname, sockptr_t optval,
 	}
 	case PACKET_FANOUT_DATA:
 	{
-		if (!po->fanout)
+		/* Paired with the WRITE_ONCE() in fanout_add() */
+		if (!READ_ONCE(po->fanout))
 			return -EINVAL;
 
 		return fanout_set_data(po, optval, optlen);
-- 
GitLab


From 176356550cedc166f23a9ec43e4b95bc224a6313 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 1 Feb 2022 10:46:40 -0800
Subject: [PATCH 3580/4878] tcp: add missing tcp_skb_can_collapse() test in
 tcp_shift_skb_data()

commit b67985be400969578d4d4b17299714c0e5d2c07b upstream.

tcp_shift_skb_data() might collapse three packets into a larger one.

P_A, P_B, P_C  -> P_ABC

Historically, it used a single tcp_skb_can_collapse_to(P_A) call,
because it was enough.

In commit 85712484110d ("tcp: coalesce/collapse must respect MPTCP extensions"),
this call was replaced by a call to tcp_skb_can_collapse(P_A, P_B)

But the now needed test over P_C has been missed.

This probably broke MPTCP.

Then later, commit 9b65b17db723 ("net: avoid double accounting for pure zerocopy skbs")
added an extra condition to tcp_skb_can_collapse(), but the missing call
from tcp_shift_skb_data() is also breaking TCP zerocopy, because P_A and P_C
might have different skb_zcopy_pure() status.

Fixes: 85712484110d ("tcp: coalesce/collapse must respect MPTCP extensions")
Fixes: 9b65b17db723 ("net: avoid double accounting for pure zerocopy skbs")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mat Martineau <mathew.j.martineau@linux.intel.com>
Cc: Talal Ahmad <talalahmad@google.com>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20220201184640.756716-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/tcp_input.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 991e3434957b8..12dd08af12b5e 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1620,6 +1620,8 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb,
 	    (mss != tcp_skb_seglen(skb)))
 		goto out;
 
+	if (!tcp_skb_can_collapse(prev, skb))
+		goto out;
 	len = skb->len;
 	pcount = tcp_skb_pcount(skb);
 	if (tcp_skb_shift(prev, skb, pcount, len))
-- 
GitLab


From c8ed22bd97d47b7803173c4e2bd3cfd52693cf7f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 5 Feb 2022 12:37:57 +0100
Subject: [PATCH 3581/4878] Linux 5.10.97

Link: https://lore.kernel.org/r/20220204091914.280602669@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Slade Watkins <slade@sladewatkins.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c43133c8a5b1f..9f328bfcaf97d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 96
+SUBLEVEL = 97
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 8bb3f8318869a894657657df940fd946891f8b76 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@google.com>
Date: Thu, 3 Feb 2022 11:10:39 -0800
Subject: [PATCH 3582/4878] ANDROID: ABI: update generic symbol list

In order to support, CONFIG_BLK_DEV_NULL_BLK and CONFIG_SCSI_DEBUG for vendors.

Bug: 213617178
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: I7ec6d5e6fa1f323a7876c424e1dab2c2814096fa
---
 android/abi_gki_aarch64_generic | 59 +++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 41e7c609b1272..76a4c464207bc 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -48,6 +48,12 @@
   autoremove_wake_function
   available_idle_cpu
   backlight_device_set_brightness
+  badblocks_check
+  badblocks_clear
+  badblocks_exit
+  badblocks_init
+  badblocks_set
+  badblocks_show
   bcmp
   bdget_disk
   bdput
@@ -72,6 +78,7 @@
   __bitmap_set
   bitmap_to_arr32
   __bitmap_weight
+  blk_abort_request
   blk_alloc_queue
   blk_check_plugged
   blk_cleanup_queue
@@ -82,6 +89,16 @@
   blk_execute_rq_nowait
   blk_get_request
   blk_ksm_init_passthrough
+  blk_mq_alloc_tag_set
+  blk_mq_complete_request
+  blk_mq_end_request
+  blk_mq_free_tag_set
+  blk_mq_init_queue_data
+  blk_mq_start_request
+  blk_mq_start_stopped_hw_queues
+  blk_mq_stop_hw_queues
+  blk_mq_unique_tag
+  blk_mq_update_nr_hw_queues
   blk_put_request
   blk_queue_flag_clear
   blk_queue_flag_set
@@ -91,6 +108,7 @@
   blk_queue_max_discard_sectors
   blk_queue_max_write_zeroes_sectors
   blk_queue_physical_block_size
+  blk_queue_write_cache
   blk_rq_map_user
   blk_rq_map_user_iov
   blk_rq_unmap_user
@@ -214,7 +232,12 @@
   component_match_add_release
   component_unbind_all
   config_ep_by_speed
+  configfs_register_subsystem
+  configfs_unregister_subsystem
+  config_group_init
   config_group_init_type_name
+  config_item_init_type_name
+  config_item_put
   console_suspend_enabled
   console_trylock
   console_unlock
@@ -299,7 +322,9 @@
   crypto_destroy_tfm
   __crypto_memneq
   crypto_register_alg
+  crypto_register_notifier
   crypto_register_scomp
+  crypto_register_shash
   crypto_shash_digest
   crypto_shash_final
   crypto_shash_finup
@@ -309,7 +334,9 @@
   crypto_skcipher_encrypt
   crypto_skcipher_setkey
   crypto_unregister_alg
+  crypto_unregister_notifier
   crypto_unregister_scomp
+  crypto_unregister_shash
   csum_ipv6_magic
   csum_partial
   csum_tcpudp_nofold
@@ -783,6 +810,7 @@
   emergency_restart
   enable_irq
   enable_percpu_irq
+  errno_to_blk_status
   ether_setup
   eth_type_trans
   eventfd_ctx_fdget
@@ -1007,6 +1035,7 @@
   input_unregister_handle
   input_unregister_handler
   int_sqrt
+  int_to_scsilun
   iomem_resource
   iommu_alloc_resv_region
   iommu_attach_group
@@ -1043,9 +1072,11 @@
   iommu_unmap
   iommu_unregister_device_fault_handler
   __ioremap
+  io_schedule
   io_schedule_timeout
   iounmap
   iov_iter_bvec
+  ip_compute_csum
   ip_send_check
   iput
   __ipv6_addr_type
@@ -1566,10 +1597,13 @@
   pwm_set_chip_data
   queue_delayed_work_on
   queue_work_on
+  radix_tree_delete_item
+  radix_tree_gang_lookup
   radix_tree_insert
   radix_tree_iter_delete
   radix_tree_lookup
   radix_tree_next_chunk
+  radix_tree_preload
   ___ratelimit
   raw_notifier_call_chain
   raw_notifier_chain_register
@@ -1698,6 +1732,8 @@
   rfkill_init_sw_state
   rfkill_register
   rfkill_unregister
+  __root_device_register
+  root_device_unregister
   root_task_group
   rps_needed
   rtc_class_close
@@ -1735,19 +1771,28 @@
   schedule_timeout
   schedule_timeout_interruptible
   scnprintf
+  scsi_add_host_with_dma
   scsi_autopm_get_device
   scsi_autopm_put_device
   scsi_block_requests
   scsi_block_when_processing_errors
+  scsi_build_sense_buffer
+  scsi_change_queue_depth
   scsi_command_size_tbl
   scsi_compat_ioctl
   scsi_device_get
   scsi_device_put
+  scsi_host_alloc
+  scsi_host_put
   scsi_ioctl
   scsi_ioctl_block_when_processing_errors
+  __scsi_iterate_devices
   scsi_normalize_sense
   __scsi_print_sense
   scsi_register_interface
+  scsi_remove_host
+  scsi_scan_host
+  scsi_set_sense_information
   scsi_unblock_requests
   sdev_prefix_printk
   send_sig_info
@@ -1773,12 +1818,19 @@
   set_user_nice
   sg_alloc_table
   sg_alloc_table_from_pages
+  sg_copy_buffer
+  sg_copy_from_buffer
+  sg_copy_to_buffer
   sg_free_table
   sg_init_one
   sg_init_table
+  sg_miter_next
+  sg_miter_start
+  sg_miter_stop
   sg_next
   __sg_page_iter_next
   __sg_page_iter_start
+  sg_pcopy_from_buffer
   sg_scsi_ioctl
   shmem_file_setup
   simple_attr_open
@@ -1996,6 +2048,7 @@
   sysfs_create_link
   sysfs_emit
   sysfs_emit_at
+  __sysfs_match_string
   sysfs_notify
   sysfs_remove_file_from_group
   sysfs_remove_file_ns
@@ -2339,6 +2392,7 @@
   usb_unregister_notify
   __usecs_to_jiffies
   usleep_range
+  uuid_gen
   v4l2_ctrl_handler_free
   v4l2_ctrl_handler_init_class
   v4l2_ctrl_log_status
@@ -2466,10 +2520,15 @@
   wireless_send_event
   woken_wake_function
   work_busy
+  __xa_alloc
+  xa_clear_mark
+  xa_destroy
   xa_erase
   xa_find
   xa_find_after
+  xa_get_mark
   xa_load
+  xa_set_mark
   xa_store
   __xfrm_state_destroy
   xfrm_state_lookup_byspi
-- 
GitLab


From e27042060f81cb3b36556ef382fcd5a417b87961 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 5 Feb 2022 19:01:20 +0100
Subject: [PATCH 3583/4878] Revert "drm/vc4: hdmi: Make sure the device is
 powered with CEC"

This reverts commit ac4ba79bb02881ed714adaa89faee601a18bff6d which is
commit 20b0dfa86bef0e80b41b0e5ac38b92f23b6f27f9 upstream.

It wasn't applied correctly, something went wrong with an attempt to fix
it up again, so just revert the whole thing to be back at a clean state.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220205171238.GA3073350@roeck-us.net
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Link: https://lore.kernel.org/r/Yf5lNIJnvhP4ajam@kroah.com
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Cc: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 8eac7dc637b0f..9392de2679a1d 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1402,18 +1402,18 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
 	u32 val;
 	int ret;
 
-	if (enable) {
-		ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
-		if (ret)
-			return ret;
+	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
+	if (ret)
+		return ret;
 
-		val = HDMI_READ(HDMI_CEC_CNTRL_5);
-		val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
-			 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
-			 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
-		val |= ((4700 / usecs) << VC4_HDMI_CEC_CNT_TO_4700_US_SHIFT) |
-			((4500 / usecs) << VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT);
+	val = HDMI_READ(HDMI_CEC_CNTRL_5);
+	val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
+		 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
+		 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
+	val |= ((4700 / usecs) << VC4_HDMI_CEC_CNT_TO_4700_US_SHIFT) |
+	       ((4500 / usecs) << VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT);
 
+	if (enable) {
 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
 			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val);
@@ -1439,10 +1439,7 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
 		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC);
 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
 			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
-
-		pm_runtime_put(&vc4_hdmi->pdev->dev);
 	}
-
 	return 0;
 }
 
@@ -1534,6 +1531,8 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi)
 	if (ret < 0)
 		goto err_delete_cec_adap;
 
+	pm_runtime_put(&vc4_hdmi->pdev->dev);
+
 	return 0;
 
 err_delete_cec_adap:
-- 
GitLab


From 97a47e25559e7d68b9640f9c22d784d7c5ada88e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 5 Feb 2022 19:01:29 +0100
Subject: [PATCH 3584/4878] Revert "drm/vc4: hdmi: Make sure the device is
 powered with CEC" again

This reverts commit 55b10b88ac8654fc2f31518aa349a2e643b37f18 which is
commit 20b0dfa86bef0e80b41b0e5ac38b92f23b6f27f9 upstream.

It wasn't applied correctly, something went wrong with an attempt to fix
it up again, so just revert the whole thing to be back at a clean state.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220205171238.GA3073350@roeck-us.net
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Link: https://lore.kernel.org/r/Yf5lNIJnvhP4ajam@kroah.com
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Cc: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 9392de2679a1d..5d5c4e9a86218 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1399,14 +1399,8 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
 	struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
 	/* clock period in microseconds */
 	const u32 usecs = 1000000 / CEC_CLOCK_FREQ;
-	u32 val;
-	int ret;
-
-	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
-	if (ret)
-		return ret;
+	u32 val = HDMI_READ(HDMI_CEC_CNTRL_5);
 
-	val = HDMI_READ(HDMI_CEC_CNTRL_5);
 	val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
 		 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
 		 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
@@ -1531,8 +1525,6 @@ static int vc4_hdmi_cec_init(struct vc4_hdmi *vc4_hdmi)
 	if (ret < 0)
 		goto err_delete_cec_adap;
 
-	pm_runtime_put(&vc4_hdmi->pdev->dev);
-
 	return 0;
 
 err_delete_cec_adap:
-- 
GitLab


From 12a0a56cbae34596d3cc771d461e73ec95606e91 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 5 Feb 2022 19:20:12 +0100
Subject: [PATCH 3585/4878] Linux 5.10.98

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 9f328bfcaf97d..10827bec74d8f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 97
+SUBLEVEL = 98
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From d9cd72a516642068470afb3be3387ead320106c5 Mon Sep 17 00:00:00 2001
From: Kevin DuBois <kevindubois@google.com>
Date: Tue, 25 Jan 2022 17:36:49 +0000
Subject: [PATCH 3586/4878] ANDROID: add flush_delayed_work to the ABI symbol
 list

Update the generic symbol list to include flush_delayed_work symbol.

Bug: 201222260

Change-Id: If8273372baf9a40dbb242f3552254f8101d07f05
Signed-off-by: Kevin DuBois <kevindubois@google.com>
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 76a4c464207bc..529d338a9cd7f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -843,6 +843,7 @@
   finish_wait
   firmware_request_nowarn
   flush_dcache_page
+  flush_delayed_work
   flush_work
   flush_workqueue
   fput
-- 
GitLab


From 7be0493ce8c4461c119331c564d9d3a297f8e0bd Mon Sep 17 00:00:00 2001
From: Alistair Delva <adelva@google.com>
Date: Mon, 7 Feb 2022 09:45:07 -0800
Subject: [PATCH 3587/4878] Revert "clk: Emit a stern warning with writable
 debugfs enabled"

This reverts commit 489a71964f9d74e697a12cd0ace20ed829eb1f93.

Rationale does not apply to Android userspace which does not allow
access to debugfs on user builds.

Bug: 218319878
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: Ia36b04b432a3db330e5a12763a3250869b97f0fe
---
 drivers/clk/clk.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 636846028def5..411ca7a1c0882 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3393,24 +3393,6 @@ static int __init clk_debug_init(void)
 {
 	struct clk_core *core;
 
-#ifdef CLOCK_ALLOW_WRITE_DEBUGFS
-	pr_warn("\n");
-	pr_warn("********************************************************************\n");
-	pr_warn("**     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE           **\n");
-	pr_warn("**                                                                **\n");
-	pr_warn("**  WRITEABLE clk DebugFS SUPPORT HAS BEEN ENABLED IN THIS KERNEL **\n");
-	pr_warn("**                                                                **\n");
-	pr_warn("** This means that this kernel is built to expose clk operations  **\n");
-	pr_warn("** such as parent or rate setting, enabling, disabling, etc.      **\n");
-	pr_warn("** to userspace, which may compromise security on your system.    **\n");
-	pr_warn("**                                                                **\n");
-	pr_warn("** If you see this message and you are not debugging the          **\n");
-	pr_warn("** kernel, report this immediately to your vendor!                **\n");
-	pr_warn("**                                                                **\n");
-	pr_warn("**     NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE           **\n");
-	pr_warn("********************************************************************\n");
-#endif
-
 	rootdir = debugfs_create_dir("clk", NULL);
 
 	debugfs_create_file("clk_summary", 0444, rootdir, &all_lists,
-- 
GitLab


From 6ea688a79989dc4dd616f106dd265fdcb27f0c27 Mon Sep 17 00:00:00 2001
From: Elliot Berman <quic_eberman@quicinc.com>
Date: Wed, 12 Jan 2022 12:14:58 -0800
Subject: [PATCH 3588/4878] FROMLIST: kbuild: Add environment variables for
 userprogs flags

Allow additional arguments be passed to userprogs compilation.
Reproducible clang builds need to provide a sysroot and gcc path to
ensure the same toolchain is used across hosts. KCFLAGS is not currently
used for any user programs compilation, so add new USERCFLAGS and
USERLDFLAGS which serves similar purpose as HOSTCFLAGS/HOSTLDFLAGS.

Clang 13+ might detect GCC installation on hosts which have it installed
to a default location in /. With addition of these environment
variables, you can specify flags such as:

$ make USERCFLAGS=--sysroot=/path/to/sysroot

This can also be used to specify different sysroots such as musl or
bionic which may be installed on the host in paths that the compiler
may not search by default.

Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Bug: 214127735
Link: https://lore.kernel.org/linux-kbuild/20220201213542.2808035-1-quic_eberman@quicinc.com/
Change-Id: I035309a569130774a1212f294973eee2830a6588
---
 Documentation/kbuild/kbuild.rst    | 11 +++++++++++
 Documentation/kbuild/makefiles.rst |  2 ++
 Makefile                           | 10 ++++++----
 init/Kconfig                       |  8 ++++----
 usr/include/Makefile               |  3 +++
 5 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst
index 2d1fc03d346ea..ef19b9c135236 100644
--- a/Documentation/kbuild/kbuild.rst
+++ b/Documentation/kbuild/kbuild.rst
@@ -77,6 +77,17 @@ HOSTLDLIBS
 ----------
 Additional libraries to link against when building host programs.
 
+.. _userkbuildflags:
+
+USERCFLAGS
+----------
+Additional options used for $(CC) when compiling userprogs.
+
+USERLDFLAGS
+-----------
+Additional options used for $(LD) when linking userprogs. userprogs are linked
+with CC, so $(USERLDFLAGS) should include "-Wl," prefix as applicable.
+
 KBUILD_KCONFIG
 --------------
 Set the top-level Kconfig file to the value of this environment
diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
index 0d5dd5413af03..1db205dc1d0fe 100644
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -852,6 +852,8 @@ The syntax is quite similar. The difference is to use "userprogs" instead of
 
 	When linking bpfilter_umh, it will be passed the extra option -static.
 
+	From command line, :ref:`USERCFLAGS and USERLDFLAGS <userkbuildflags>` will also be used.
+
 5.4 When userspace programs are actually built
 ----------------------------------------------
 
diff --git a/Makefile b/Makefile
index 7e9cb00f59535..f126b6aac472f 100644
--- a/Makefile
+++ b/Makefile
@@ -429,11 +429,12 @@ HOSTCC	= gcc
 HOSTCXX	= g++
 endif
 
-export KBUILD_USERCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
-			      -O2 -fomit-frame-pointer -std=gnu89
-export KBUILD_USERLDFLAGS :=
+KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
+			 -O2 -fomit-frame-pointer -std=gnu89
+KBUILD_USERCFLAGS  := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS)
+KBUILD_USERLDFLAGS := $(USERLDFLAGS)
 
-KBUILD_HOSTCFLAGS   := $(KBUILD_USERCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
+KBUILD_HOSTCFLAGS   := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
 KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
 KBUILD_HOSTLDLIBS   := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
@@ -526,6 +527,7 @@ export CPP AR NM STRIP OBJCOPY OBJDUMP READELF PAHOLE RESOLVE_BTFIDS LEX YACC AW
 export PERL PYTHON PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
 export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD
 export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
+export KBUILD_USERCFLAGS KBUILD_USERLDFLAGS
 
 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
diff --git a/init/Kconfig b/init/Kconfig
index d3fe22d6e087b..f7b3d9de6624c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -71,13 +71,13 @@ config LLD_VERSION
 
 config CC_CAN_LINK
 	bool
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag))
+	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag)) if 64BIT
+	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag))
 
 config CC_CAN_LINK_STATIC
 	bool
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static)
+	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag) -static) if 64BIT
+	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag) -static)
 
 config CC_HAS_ASM_GOTO
 	def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
diff --git a/usr/include/Makefile b/usr/include/Makefile
index 703a255cddc63..a8ed689918ce1 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -12,6 +12,9 @@ UAPI_CFLAGS := -std=c90 -Wall -Werror=implicit-function-declaration
 # It is here just because CONFIG_CC_CAN_LINK is tested with -m32 or -m64.
 UAPI_CFLAGS += $(filter -m32 -m64, $(KBUILD_CFLAGS))
 
+# USERCFLAGS might contain sysroot location for CC.
+UAPI_CFLAGS += $(USERCFLAGS)
+
 override c_flags = $(UAPI_CFLAGS) -Wp,-MMD,$(depfile) -I$(objtree)/usr/include
 
 # The following are excluded for now because they fail to build.
-- 
GitLab


From f446089a268c8fc6908488e991d28a9b936293db Mon Sep 17 00:00:00 2001
From: Vratislav Bendel <vbendel@redhat.com>
Date: Wed, 2 Feb 2022 12:25:11 +0100
Subject: [PATCH 3589/4878] selinux: fix double free of cond_list on error
 paths

commit 186edf7e368c40d06cf727a1ad14698ea67b74ad upstream.

On error path from cond_read_list() and duplicate_policydb_cond_list()
the cond_list_destroy() gets called a second time in caller functions,
resulting in NULL pointer deref.  Fix this by resetting the
cond_list_len to 0 in cond_list_destroy(), making subsequent calls a
noop.

Also consistently reset the cond_list pointer to NULL after freeing.

Cc: stable@vger.kernel.org
Signed-off-by: Vratislav Bendel <vbendel@redhat.com>
[PM: fix line lengths in the description]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/selinux/ss/conditional.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index 1ef74c085f2b0..865611127357e 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -152,6 +152,8 @@ static void cond_list_destroy(struct policydb *p)
 	for (i = 0; i < p->cond_list_len; i++)
 		cond_node_destroy(&p->cond_list[i]);
 	kfree(p->cond_list);
+	p->cond_list = NULL;
+	p->cond_list_len = 0;
 }
 
 void cond_policydb_destroy(struct policydb *p)
@@ -440,7 +442,6 @@ int cond_read_list(struct policydb *p, void *fp)
 	return 0;
 err:
 	cond_list_destroy(p);
-	p->cond_list = NULL;
 	return rc;
 }
 
-- 
GitLab


From 0ff6b805069506318fb7385304b864d6694d9363 Mon Sep 17 00:00:00 2001
From: Paul Moore <paul@paul-moore.com>
Date: Thu, 13 Jan 2022 18:54:38 -0500
Subject: [PATCH 3590/4878] audit: improve audit queue handling when "audit=1"
 on cmdline

commit f26d04331360d42dbd6b58448bd98e4edbfbe1c5 upstream.

When an admin enables audit at early boot via the "audit=1" kernel
command line the audit queue behavior is slightly different; the
audit subsystem goes to greater lengths to avoid dropping records,
which unfortunately can result in problems when the audit daemon is
forcibly stopped for an extended period of time.

This patch makes a number of changes designed to improve the audit
queuing behavior so that leaving the audit daemon in a stopped state
for an extended period does not cause a significant impact to the
system.

- kauditd_send_queue() is now limited to looping through the
  passed queue only once per call.  This not only prevents the
  function from looping indefinitely when records are returned
  to the current queue, it also allows any recovery handling in
  kauditd_thread() to take place when kauditd_send_queue()
  returns.

- Transient netlink send errors seen as -EAGAIN now cause the
  record to be returned to the retry queue instead of going to
  the hold queue.  The intention of the hold queue is to store,
  perhaps for an extended period of time, the events which led
  up to the audit daemon going offline.  The retry queue remains
  a temporary queue intended to protect against transient issues
  between the kernel and the audit daemon.

- The retry queue is now limited by the audit_backlog_limit
  setting, the same as the other queues.  This allows admins
  to bound the size of all of the audit queues on the system.

- kauditd_rehold_skb() now returns records to the end of the
  hold queue to ensure ordering is preserved in the face of
  recent changes to kauditd_send_queue().

Cc: stable@vger.kernel.org
Fixes: 5b52330bbfe63 ("audit: fix auditd/kernel connection state tracking")
Fixes: f4b3ee3c85551 ("audit: improve robustness of the audit queue handling")
Reported-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Tested-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/audit.c | 62 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 43 insertions(+), 19 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 2a38cbaf3ddb7..aeec86ed47088 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -541,20 +541,22 @@ static void kauditd_printk_skb(struct sk_buff *skb)
 /**
  * kauditd_rehold_skb - Handle a audit record send failure in the hold queue
  * @skb: audit record
+ * @error: error code (unused)
  *
  * Description:
  * This should only be used by the kauditd_thread when it fails to flush the
  * hold queue.
  */
-static void kauditd_rehold_skb(struct sk_buff *skb)
+static void kauditd_rehold_skb(struct sk_buff *skb, __always_unused int error)
 {
-	/* put the record back in the queue at the same place */
-	skb_queue_head(&audit_hold_queue, skb);
+	/* put the record back in the queue */
+	skb_queue_tail(&audit_hold_queue, skb);
 }
 
 /**
  * kauditd_hold_skb - Queue an audit record, waiting for auditd
  * @skb: audit record
+ * @error: error code
  *
  * Description:
  * Queue the audit record, waiting for an instance of auditd.  When this
@@ -564,19 +566,31 @@ static void kauditd_rehold_skb(struct sk_buff *skb)
  * and queue it, if we have room.  If we want to hold on to the record, but we
  * don't have room, record a record lost message.
  */
-static void kauditd_hold_skb(struct sk_buff *skb)
+static void kauditd_hold_skb(struct sk_buff *skb, int error)
 {
 	/* at this point it is uncertain if we will ever send this to auditd so
 	 * try to send the message via printk before we go any further */
 	kauditd_printk_skb(skb);
 
 	/* can we just silently drop the message? */
-	if (!audit_default) {
-		kfree_skb(skb);
-		return;
+	if (!audit_default)
+		goto drop;
+
+	/* the hold queue is only for when the daemon goes away completely,
+	 * not -EAGAIN failures; if we are in a -EAGAIN state requeue the
+	 * record on the retry queue unless it's full, in which case drop it
+	 */
+	if (error == -EAGAIN) {
+		if (!audit_backlog_limit ||
+		    skb_queue_len(&audit_retry_queue) < audit_backlog_limit) {
+			skb_queue_tail(&audit_retry_queue, skb);
+			return;
+		}
+		audit_log_lost("kauditd retry queue overflow");
+		goto drop;
 	}
 
-	/* if we have room, queue the message */
+	/* if we have room in the hold queue, queue the message */
 	if (!audit_backlog_limit ||
 	    skb_queue_len(&audit_hold_queue) < audit_backlog_limit) {
 		skb_queue_tail(&audit_hold_queue, skb);
@@ -585,24 +599,32 @@ static void kauditd_hold_skb(struct sk_buff *skb)
 
 	/* we have no other options - drop the message */
 	audit_log_lost("kauditd hold queue overflow");
+drop:
 	kfree_skb(skb);
 }
 
 /**
  * kauditd_retry_skb - Queue an audit record, attempt to send again to auditd
  * @skb: audit record
+ * @error: error code (unused)
  *
  * Description:
  * Not as serious as kauditd_hold_skb() as we still have a connected auditd,
  * but for some reason we are having problems sending it audit records so
  * queue the given record and attempt to resend.
  */
-static void kauditd_retry_skb(struct sk_buff *skb)
+static void kauditd_retry_skb(struct sk_buff *skb, __always_unused int error)
 {
-	/* NOTE: because records should only live in the retry queue for a
-	 * short period of time, before either being sent or moved to the hold
-	 * queue, we don't currently enforce a limit on this queue */
-	skb_queue_tail(&audit_retry_queue, skb);
+	if (!audit_backlog_limit ||
+	    skb_queue_len(&audit_retry_queue) < audit_backlog_limit) {
+		skb_queue_tail(&audit_retry_queue, skb);
+		return;
+	}
+
+	/* we have to drop the record, send it via printk as a last effort */
+	kauditd_printk_skb(skb);
+	audit_log_lost("kauditd retry queue overflow");
+	kfree_skb(skb);
 }
 
 /**
@@ -640,7 +662,7 @@ static void auditd_reset(const struct auditd_connection *ac)
 	/* flush the retry queue to the hold queue, but don't touch the main
 	 * queue since we need to process that normally for multicast */
 	while ((skb = skb_dequeue(&audit_retry_queue)))
-		kauditd_hold_skb(skb);
+		kauditd_hold_skb(skb, -ECONNREFUSED);
 }
 
 /**
@@ -714,16 +736,18 @@ static int kauditd_send_queue(struct sock *sk, u32 portid,
 			      struct sk_buff_head *queue,
 			      unsigned int retry_limit,
 			      void (*skb_hook)(struct sk_buff *skb),
-			      void (*err_hook)(struct sk_buff *skb))
+			      void (*err_hook)(struct sk_buff *skb, int error))
 {
 	int rc = 0;
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
+	struct sk_buff *skb_tail;
 	unsigned int failed = 0;
 
 	/* NOTE: kauditd_thread takes care of all our locking, we just use
 	 *       the netlink info passed to us (e.g. sk and portid) */
 
-	while ((skb = skb_dequeue(queue))) {
+	skb_tail = skb_peek_tail(queue);
+	while ((skb != skb_tail) && (skb = skb_dequeue(queue))) {
 		/* call the skb_hook for each skb we touch */
 		if (skb_hook)
 			(*skb_hook)(skb);
@@ -731,7 +755,7 @@ static int kauditd_send_queue(struct sock *sk, u32 portid,
 		/* can we send to anyone via unicast? */
 		if (!sk) {
 			if (err_hook)
-				(*err_hook)(skb);
+				(*err_hook)(skb, -ECONNREFUSED);
 			continue;
 		}
 
@@ -745,7 +769,7 @@ retry:
 			    rc == -ECONNREFUSED || rc == -EPERM) {
 				sk = NULL;
 				if (err_hook)
-					(*err_hook)(skb);
+					(*err_hook)(skb, rc);
 				if (rc == -EAGAIN)
 					rc = 0;
 				/* continue to drain the queue */
-- 
GitLab


From a9394f21fba027147bf275b083c77955864c366a Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Mon, 24 Jan 2022 15:32:51 +0000
Subject: [PATCH 3591/4878] ASoC: ops: Reject out of bounds values in
 snd_soc_put_volsw()

commit 817f7c9335ec01e0f5e8caffc4f1dcd5e458a4c0 upstream.

We don't currently validate that the values being set are within the range
we advertised to userspace as being valid, do so and reject any values
that are out of range.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220124153253.3548853-2-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-ops.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 10f48827bb0e0..d7dd1b1267c22 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -316,13 +316,27 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 	if (sign_bit)
 		mask = BIT(sign_bit + 1) - 1;
 
-	val = ((ucontrol->value.integer.value[0] + min) & mask);
+	val = ucontrol->value.integer.value[0];
+	if (mc->platform_max && val > mc->platform_max)
+		return -EINVAL;
+	if (val > max - min)
+		return -EINVAL;
+	if (val < 0)
+		return -EINVAL;
+	val = (val + min) & mask;
 	if (invert)
 		val = max - val;
 	val_mask = mask << shift;
 	val = val << shift;
 	if (snd_soc_volsw_is_stereo(mc)) {
-		val2 = ((ucontrol->value.integer.value[1] + min) & mask);
+		val2 = ucontrol->value.integer.value[1];
+		if (mc->platform_max && val2 > mc->platform_max)
+			return -EINVAL;
+		if (val2 > max - min)
+			return -EINVAL;
+		if (val2 < 0)
+			return -EINVAL;
+		val2 = (val2 + min) & mask;
 		if (invert)
 			val2 = max - val2;
 		if (reg == reg2) {
-- 
GitLab


From 038f8b7caa74d29e020949a43ca368c93f6b29b9 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Mon, 24 Jan 2022 15:32:52 +0000
Subject: [PATCH 3592/4878] ASoC: ops: Reject out of bounds values in
 snd_soc_put_volsw_sx()

commit 4f1e50d6a9cf9c1b8c859d449b5031cacfa8404e upstream.

We don't currently validate that the values being set are within the range
we advertised to userspace as being valid, do so and reject any values
that are out of range.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220124153253.3548853-3-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-ops.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index d7dd1b1267c22..982261e064ca0 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -423,8 +423,15 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 	int err = 0;
 	unsigned int val, val_mask, val2 = 0;
 
+	val = ucontrol->value.integer.value[0];
+	if (mc->platform_max && val > mc->platform_max)
+		return -EINVAL;
+	if (val > max - min)
+		return -EINVAL;
+	if (val < 0)
+		return -EINVAL;
 	val_mask = mask << shift;
-	val = (ucontrol->value.integer.value[0] + min) & mask;
+	val = (val + min) & mask;
 	val = val << shift;
 
 	err = snd_soc_component_update_bits(component, reg, val_mask, val);
-- 
GitLab


From 6877f87579ed830f9ff6d478539074f035d04bfb Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Mon, 24 Jan 2022 15:32:53 +0000
Subject: [PATCH 3593/4878] ASoC: ops: Reject out of bounds values in
 snd_soc_put_xr_sx()

commit 4cf28e9ae6e2e11a044be1bcbcfa1b0d8675fe4d upstream.

We don't currently validate that the values being set are within the range
we advertised to userspace as being valid, do so and reject any values
that are out of range.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220124153253.3548853-4-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-ops.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 982261e064ca0..f24f7354f46fe 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -880,6 +880,8 @@ int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
 	unsigned int i, regval, regmask;
 	int err;
 
+	if (val < mc->min || val > mc->max)
+		return -EINVAL;
 	if (invert)
 		val = max - val;
 	val &= mask;
-- 
GitLab


From 470bbb9cbd8fe115d844222317666f672d32c1fc Mon Sep 17 00:00:00 2001
From: Jonas Hahnfeld <hahnjo@hahnjo.de>
Date: Mon, 31 Jan 2022 19:35:16 +0100
Subject: [PATCH 3594/4878] ALSA: usb-audio: Correct quirk for VF0770
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 4ee02e20893d2f9e951c7888f2284fa608ddaa35 upstream.

This device provides both audio and video. The original quirk added in
commit 48827e1d6af5 ("ALSA: usb-audio: Add quirk for VF0770") used
USB_DEVICE to match the vendor and product ID. Depending on module order,
if snd-usb-audio was asked first, it would match the entire device and
uvcvideo wouldn't get to see it. Change the matching to USB_AUDIO_DEVICE
to restore uvcvideo matching in all cases.

Fixes: 48827e1d6af5 ("ALSA: usb-audio: Add quirk for VF0770")
Reported-by: Jukka Heikintalo <heikintalo.jukka@gmail.com>
Tested-by: Jukka Heikintalo <heikintalo.jukka@gmail.com>
Reported-by: Paweł Susicki <pawel.susicki@gmail.com>
Tested-by: Paweł Susicki <pawel.susicki@gmail.com>
Cc: <stable@vger.kernel.org> # 5.4, 5.10, 5.14, 5.15
Signed-off-by: Jonas Hahnfeld <hahnjo@hahnjo.de>
Link: https://lore.kernel.org/r/20220131183516.61191-1-hahnjo@hahnjo.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/quirks-table.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 949c6d129f2a9..aabd3a10ec5b4 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -84,7 +84,7 @@
  * combination.
  */
 {
-	USB_DEVICE(0x041e, 0x4095),
+	USB_AUDIO_DEVICE(0x041e, 0x4095),
 	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
 		.ifnum = QUIRK_ANY_INTERFACE,
 		.type = QUIRK_COMPOSITE,
-- 
GitLab


From a7de1002135cf94367748ffc695a29812d7633b5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 26 Jan 2022 15:50:11 +0100
Subject: [PATCH 3595/4878] ALSA: hda: Fix UAF of leds class devs at unbinding

commit 549f8ffc7b2f7561bea7f90930b6c5104318e87b upstream.

The LED class devices that are created by HD-audio codec drivers are
registered via devm_led_classdev_register() and associated with the
HD-audio codec device.  Unfortunately, it turned out that the devres
release doesn't work for this case; namely, since the codec resource
release happens before the devm call chain, it triggers a NULL
dereference or a UAF for a stale set_brightness_delay callback.

For fixing the bug, this patch changes the LED class device register
and unregister in a manual manner without devres, keeping the
instances in hda_gen_spec.

Reported-by: Alexander Sergeyev <sergeev917@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220111195229.a77wrpjclqwrx4bx@localhost.localdomain
Link: https://lore.kernel.org/r/20220126145011.16728-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/hda_generic.c | 17 +++++++++++++++--
 sound/pci/hda/hda_generic.h |  3 +++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 323df011b94a3..8ee3be7bbd24e 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -91,6 +91,12 @@ static void snd_hda_gen_spec_free(struct hda_gen_spec *spec)
 	free_kctls(spec);
 	snd_array_free(&spec->paths);
 	snd_array_free(&spec->loopback_list);
+#ifdef CONFIG_SND_HDA_GENERIC_LEDS
+	if (spec->led_cdevs[LED_AUDIO_MUTE])
+		led_classdev_unregister(spec->led_cdevs[LED_AUDIO_MUTE]);
+	if (spec->led_cdevs[LED_AUDIO_MICMUTE])
+		led_classdev_unregister(spec->led_cdevs[LED_AUDIO_MICMUTE]);
+#endif
 }
 
 /*
@@ -3911,7 +3917,10 @@ static int create_mute_led_cdev(struct hda_codec *codec,
 						enum led_brightness),
 				bool micmute)
 {
+	struct hda_gen_spec *spec = codec->spec;
 	struct led_classdev *cdev;
+	int idx = micmute ? LED_AUDIO_MICMUTE : LED_AUDIO_MUTE;
+	int err;
 
 	cdev = devm_kzalloc(&codec->core.dev, sizeof(*cdev), GFP_KERNEL);
 	if (!cdev)
@@ -3921,10 +3930,14 @@ static int create_mute_led_cdev(struct hda_codec *codec,
 	cdev->max_brightness = 1;
 	cdev->default_trigger = micmute ? "audio-micmute" : "audio-mute";
 	cdev->brightness_set_blocking = callback;
-	cdev->brightness = ledtrig_audio_get(micmute ? LED_AUDIO_MICMUTE : LED_AUDIO_MUTE);
+	cdev->brightness = ledtrig_audio_get(idx);
 	cdev->flags = LED_CORE_SUSPENDRESUME;
 
-	return devm_led_classdev_register(&codec->core.dev, cdev);
+	err = led_classdev_register(&codec->core.dev, cdev);
+	if (err < 0)
+		return err;
+	spec->led_cdevs[idx] = cdev;
+	return 0;
 }
 
 static void vmaster_update_mute_led(void *private_data, int enabled)
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index 0886bc81f40be..578faa9adcdcd 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -305,6 +305,9 @@ struct hda_gen_spec {
 				   struct hda_jack_callback *cb);
 	void (*mic_autoswitch_hook)(struct hda_codec *codec,
 				    struct hda_jack_callback *cb);
+
+	/* leds */
+	struct led_classdev *led_cdevs[NUM_AUDIO_LEDS];
 };
 
 /* values for add_stereo_mix_input flag */
-- 
GitLab


From 410f231fd70c891469ff7c7c76fcd59a86b29a65 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 31 Jan 2022 08:57:38 +0100
Subject: [PATCH 3596/4878] ALSA: hda: realtek: Fix race at concurrent COEF
 updates

commit b837a9f5ab3bdfab9233c9f98a6bef717673a3e5 upstream.

The COEF access is done with two steps: setting the index then read or
write the data.  When multiple COEF accesses are performed
concurrently, the index and data might be paired unexpectedly.
In most cases, this isn't a big problem as the COEF setup is done at
the initialization, but some dynamic changes like the mute LED may hit
such a race.

For avoiding the racy COEF accesses, this patch introduces a new
mutex coef_mutex to alc_spec, and wrap the COEF accessing functions
with it.

Reported-by: Alexander Sergeyev <sergeev917@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220111195229.a77wrpjclqwrx4bx@localhost.localdomain
Link: https://lore.kernel.org/r/20220131075738.24323-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 61 ++++++++++++++++++++++++++++-------
 1 file changed, 50 insertions(+), 11 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index a858bb9e99270..e5770b35002f2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -97,6 +97,7 @@ struct alc_spec {
 	unsigned int gpio_mic_led_mask;
 	struct alc_coef_led mute_led_coef;
 	struct alc_coef_led mic_led_coef;
+	struct mutex coef_mutex;
 
 	hda_nid_t headset_mic_pin;
 	hda_nid_t headphone_mic_pin;
@@ -133,8 +134,8 @@ struct alc_spec {
  * COEF access helper functions
  */
 
-static int alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
-			       unsigned int coef_idx)
+static int __alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
+				 unsigned int coef_idx)
 {
 	unsigned int val;
 
@@ -143,28 +144,61 @@ static int alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 	return val;
 }
 
+static int alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
+			       unsigned int coef_idx)
+{
+	struct alc_spec *spec = codec->spec;
+	unsigned int val;
+
+	mutex_lock(&spec->coef_mutex);
+	val = __alc_read_coefex_idx(codec, nid, coef_idx);
+	mutex_unlock(&spec->coef_mutex);
+	return val;
+}
+
 #define alc_read_coef_idx(codec, coef_idx) \
 	alc_read_coefex_idx(codec, 0x20, coef_idx)
 
-static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
-				 unsigned int coef_idx, unsigned int coef_val)
+static void __alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
+				   unsigned int coef_idx, unsigned int coef_val)
 {
 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX, coef_idx);
 	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PROC_COEF, coef_val);
 }
 
+static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
+				 unsigned int coef_idx, unsigned int coef_val)
+{
+	struct alc_spec *spec = codec->spec;
+
+	mutex_lock(&spec->coef_mutex);
+	__alc_write_coefex_idx(codec, nid, coef_idx, coef_val);
+	mutex_unlock(&spec->coef_mutex);
+}
+
 #define alc_write_coef_idx(codec, coef_idx, coef_val) \
 	alc_write_coefex_idx(codec, 0x20, coef_idx, coef_val)
 
+static void __alc_update_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
+				    unsigned int coef_idx, unsigned int mask,
+				    unsigned int bits_set)
+{
+	unsigned int val = __alc_read_coefex_idx(codec, nid, coef_idx);
+
+	if (val != -1)
+		__alc_write_coefex_idx(codec, nid, coef_idx,
+				       (val & ~mask) | bits_set);
+}
+
 static void alc_update_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 				  unsigned int coef_idx, unsigned int mask,
 				  unsigned int bits_set)
 {
-	unsigned int val = alc_read_coefex_idx(codec, nid, coef_idx);
+	struct alc_spec *spec = codec->spec;
 
-	if (val != -1)
-		alc_write_coefex_idx(codec, nid, coef_idx,
-				     (val & ~mask) | bits_set);
+	mutex_lock(&spec->coef_mutex);
+	__alc_update_coefex_idx(codec, nid, coef_idx, mask, bits_set);
+	mutex_unlock(&spec->coef_mutex);
 }
 
 #define alc_update_coef_idx(codec, coef_idx, mask, bits_set)	\
@@ -197,13 +231,17 @@ struct coef_fw {
 static void alc_process_coef_fw(struct hda_codec *codec,
 				const struct coef_fw *fw)
 {
+	struct alc_spec *spec = codec->spec;
+
+	mutex_lock(&spec->coef_mutex);
 	for (; fw->nid; fw++) {
 		if (fw->mask == (unsigned short)-1)
-			alc_write_coefex_idx(codec, fw->nid, fw->idx, fw->val);
+			__alc_write_coefex_idx(codec, fw->nid, fw->idx, fw->val);
 		else
-			alc_update_coefex_idx(codec, fw->nid, fw->idx,
-					      fw->mask, fw->val);
+			__alc_update_coefex_idx(codec, fw->nid, fw->idx,
+						fw->mask, fw->val);
 	}
+	mutex_unlock(&spec->coef_mutex);
 }
 
 /*
@@ -1160,6 +1198,7 @@ static int alc_alloc_spec(struct hda_codec *codec, hda_nid_t mixer_nid)
 	codec->spdif_status_reset = 1;
 	codec->forced_resume = 1;
 	codec->patch_ops = alc_patch_ops;
+	mutex_init(&spec->coef_mutex);
 
 	err = alc_codec_rename_from_preset(codec);
 	if (err < 0) {
-- 
GitLab


From 532cde962f5f1a3963729ed748f858ca5baddd05 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Albert=20Geant=C4=83?= <albertgeanta@gmail.com>
Date: Mon, 31 Jan 2022 03:05:23 +0200
Subject: [PATCH 3597/4878] ALSA: hda/realtek: Add quirk for ASUS GU603
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 94db9cc8f8fa2d5426ce79ec4ca16028f7084224 upstream.

The ASUS GU603 (Zephyrus M16 - SSID 1043:16b2) requires a quirk similar to
other ASUS devices for correctly routing the 4 integrated speakers. This
fixes it by adding a corresponding quirk entry, which connects the bass
speakers to the proper DAC.

Signed-off-by: Albert Geantă <albertgeanta@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220131010523.546386-1-albertgeanta@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e5770b35002f2..1e5bfd0dccd4a 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8789,6 +8789,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x1e51, "ASUS Zephyrus M15", ALC294_FIXUP_ASUS_GU502_PINS),
 	SND_PCI_QUIRK(0x1043, 0x1e8e, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1f11, "ASUS Zephyrus G14", ALC289_FIXUP_ASUS_GA401),
+	SND_PCI_QUIRK(0x1043, 0x16b2, "ASUS GU603", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x3030, "ASUS ZN270IE", ALC256_FIXUP_ASUS_AIO_GPIO2),
 	SND_PCI_QUIRK(0x1043, 0x831a, "ASUS P901", ALC269_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x1043, 0x834a, "ASUS S101", ALC269_FIXUP_STEREO_DMIC),
-- 
GitLab


From 3a8a8072e32be002804cf1d029a2eef8c61b2fe0 Mon Sep 17 00:00:00 2001
From: Christian Lachner <gladiac@gmail.com>
Date: Sat, 29 Jan 2022 12:32:41 +0100
Subject: [PATCH 3598/4878] ALSA: hda/realtek: Add missing fixup-model entry
 for Gigabyte X570 ALC1220 quirks

commit 63394a16086fc2152869d7902621e2525e14bc40 upstream.

The initial commit of the new Gigabyte X570 ALC1220 quirks lacked the
fixup-model entry in alc882_fixup_models[]. It seemed not to cause any ill
effects but for completeness sake this commit makes up for that.

Signed-off-by: Christian Lachner <gladiac@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220129113243.93068-2-gladiac@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1e5bfd0dccd4a..da9731a70ee7f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2672,6 +2672,7 @@ static const struct hda_model_fixup alc882_fixup_models[] = {
 	{.id = ALC882_FIXUP_NO_PRIMARY_HP, .name = "no-primary-hp"},
 	{.id = ALC887_FIXUP_ASUS_BASS, .name = "asus-bass"},
 	{.id = ALC1220_FIXUP_GB_DUAL_CODECS, .name = "dual-codecs"},
+	{.id = ALC1220_FIXUP_GB_X570, .name = "gb-x570"},
 	{.id = ALC1220_FIXUP_CLEVO_P950, .name = "clevo-p950"},
 	{}
 };
-- 
GitLab


From d4aa3a98596f6d6968881942b9b70cbd1fffae6d Mon Sep 17 00:00:00 2001
From: Christian Lachner <gladiac@gmail.com>
Date: Sat, 29 Jan 2022 12:32:42 +0100
Subject: [PATCH 3599/4878] ALSA: hda/realtek: Fix silent output on Gigabyte
 X570S Aorus Master (newer chipset)

commit 41a8601302ecbe704ac970552c33dc942300fc37 upstream.

Newer versions of the X570 Master come with a newer revision of the
mainboard chipset - the X570S. These boards have the same ALC1220 codec
but seem to initialize the codec with a different parameter in Coef 0x7
which causes the output audio to be very low. We therefore write a
known-good value to Coef 0x7 to fix that. As the value is the exact same
as on the other X570(non-S) boards the same quirk-function can be shared
between both generations.

This commit adds the Gigabyte X570S Aorus Master to the list of boards
using the ALC1220_FIXUP_GB_X570 quirk. This fixes both, the silent output
and the no-audio after reboot from windows problems.

This work has been tested by the folks over at the level1techs forum here:
https://forum.level1techs.com/t/has-anybody-gotten-audio-working-in-linux-on-aorus-x570-master/154072

Signed-off-by: Christian Lachner <gladiac@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220129113243.93068-3-gladiac@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index da9731a70ee7f..ec85e6be883b5 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2171,6 +2171,7 @@ static void alc1220_fixup_gb_x570(struct hda_codec *codec,
 {
 	static const hda_nid_t conn1[] = { 0x0c };
 	static const struct coef_fw gb_x570_coefs[] = {
+		WRITE_COEF(0x07, 0x03c0),
 		WRITE_COEF(0x1a, 0x01c1),
 		WRITE_COEF(0x1b, 0x0202),
 		WRITE_COEF(0x43, 0x3005),
@@ -2598,6 +2599,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1458, 0xa0b8, "Gigabyte AZ370-Gaming", ALC1220_FIXUP_GB_DUAL_CODECS),
 	SND_PCI_QUIRK(0x1458, 0xa0cd, "Gigabyte X570 Aorus Master", ALC1220_FIXUP_GB_X570),
 	SND_PCI_QUIRK(0x1458, 0xa0ce, "Gigabyte X570 Aorus Xtreme", ALC1220_FIXUP_CLEVO_P950),
+	SND_PCI_QUIRK(0x1458, 0xa0d5, "Gigabyte X570S Aorus Master", ALC1220_FIXUP_GB_X570),
 	SND_PCI_QUIRK(0x1462, 0x11f7, "MSI-GE63", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x1228, "MSI-GP63", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x1229, "MSI-GP73", ALC1220_FIXUP_CLEVO_P950),
-- 
GitLab


From aa5d406153c53d12e1c4a09f657a3b1e55220ef2 Mon Sep 17 00:00:00 2001
From: Christian Lachner <gladiac@gmail.com>
Date: Sat, 29 Jan 2022 12:32:43 +0100
Subject: [PATCH 3600/4878] ALSA: hda/realtek: Fix silent output on Gigabyte
 X570 Aorus Xtreme after reboot from Windows

commit ea3541961376f733373839cc90493aafa8a7f733 upstream.

This commit switches the Gigabyte X570 Aorus Xtreme from using the
ALC1220_FIXUP_CLEVO_P950 to the ALC1220_FIXUP_GB_X570 quirk. This fixes
the no-audio after reboot from windows problem.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205275
Signed-off-by: Christian Lachner <gladiac@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220129113243.93068-4-gladiac@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ec85e6be883b5..aef017ba00708 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2598,7 +2598,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1458, 0xa0b8, "Gigabyte AZ370-Gaming", ALC1220_FIXUP_GB_DUAL_CODECS),
 	SND_PCI_QUIRK(0x1458, 0xa0cd, "Gigabyte X570 Aorus Master", ALC1220_FIXUP_GB_X570),
-	SND_PCI_QUIRK(0x1458, 0xa0ce, "Gigabyte X570 Aorus Xtreme", ALC1220_FIXUP_CLEVO_P950),
+	SND_PCI_QUIRK(0x1458, 0xa0ce, "Gigabyte X570 Aorus Xtreme", ALC1220_FIXUP_GB_X570),
 	SND_PCI_QUIRK(0x1458, 0xa0d5, "Gigabyte X570S Aorus Master", ALC1220_FIXUP_GB_X570),
 	SND_PCI_QUIRK(0x1462, 0x11f7, "MSI-GE63", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x1228, "MSI-GP63", ALC1220_FIXUP_CLEVO_P950),
-- 
GitLab


From 32747e01436aac8ef93fe85b5b523b4f3b52f040 Mon Sep 17 00:00:00 2001
From: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Date: Thu, 20 Jan 2022 20:09:16 +0900
Subject: [PATCH 3601/4878] btrfs: fix deadlock between quota disable and
 qgroup rescan worker

commit e804861bd4e69cc5fe1053eedcb024982dde8e48 upstream.

Quota disable ioctl starts a transaction before waiting for the qgroup
rescan worker completes. However, this wait can be infinite and results
in deadlock because of circular dependency among the quota disable
ioctl, the qgroup rescan worker and the other task with transaction such
as block group relocation task.

The deadlock happens with the steps following:

1) Task A calls ioctl to disable quota. It starts a transaction and
   waits for qgroup rescan worker completes.
2) Task B such as block group relocation task starts a transaction and
   joins to the transaction that task A started. Then task B commits to
   the transaction. In this commit, task B waits for a commit by task A.
3) Task C as the qgroup rescan worker starts its job and starts a
   transaction. In this transaction start, task C waits for completion
   of the transaction that task A started and task B committed.

This deadlock was found with fstests test case btrfs/115 and a zoned
null_blk device. The test case enables and disables quota, and the
block group reclaim was triggered during the quota disable by chance.
The deadlock was also observed by running quota enable and disable in
parallel with 'btrfs balance' command on regular null_blk devices.

An example report of the deadlock:

  [372.469894] INFO: task kworker/u16:6:103 blocked for more than 122 seconds.
  [372.479944]       Not tainted 5.16.0-rc8 #7
  [372.485067] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [372.493898] task:kworker/u16:6   state:D stack:    0 pid:  103 ppid:     2 flags:0x00004000
  [372.503285] Workqueue: btrfs-qgroup-rescan btrfs_work_helper [btrfs]
  [372.510782] Call Trace:
  [372.514092]  <TASK>
  [372.521684]  __schedule+0xb56/0x4850
  [372.530104]  ? io_schedule_timeout+0x190/0x190
  [372.538842]  ? lockdep_hardirqs_on+0x7e/0x100
  [372.547092]  ? _raw_spin_unlock_irqrestore+0x3e/0x60
  [372.555591]  schedule+0xe0/0x270
  [372.561894]  btrfs_commit_transaction+0x18bb/0x2610 [btrfs]
  [372.570506]  ? btrfs_apply_pending_changes+0x50/0x50 [btrfs]
  [372.578875]  ? free_unref_page+0x3f2/0x650
  [372.585484]  ? finish_wait+0x270/0x270
  [372.591594]  ? release_extent_buffer+0x224/0x420 [btrfs]
  [372.599264]  btrfs_qgroup_rescan_worker+0xc13/0x10c0 [btrfs]
  [372.607157]  ? lock_release+0x3a9/0x6d0
  [372.613054]  ? btrfs_qgroup_account_extent+0xda0/0xda0 [btrfs]
  [372.620960]  ? do_raw_spin_lock+0x11e/0x250
  [372.627137]  ? rwlock_bug.part.0+0x90/0x90
  [372.633215]  ? lock_is_held_type+0xe4/0x140
  [372.639404]  btrfs_work_helper+0x1ae/0xa90 [btrfs]
  [372.646268]  process_one_work+0x7e9/0x1320
  [372.652321]  ? lock_release+0x6d0/0x6d0
  [372.658081]  ? pwq_dec_nr_in_flight+0x230/0x230
  [372.664513]  ? rwlock_bug.part.0+0x90/0x90
  [372.670529]  worker_thread+0x59e/0xf90
  [372.676172]  ? process_one_work+0x1320/0x1320
  [372.682440]  kthread+0x3b9/0x490
  [372.687550]  ? _raw_spin_unlock_irq+0x24/0x50
  [372.693811]  ? set_kthread_struct+0x100/0x100
  [372.700052]  ret_from_fork+0x22/0x30
  [372.705517]  </TASK>
  [372.709747] INFO: task btrfs-transacti:2347 blocked for more than 123 seconds.
  [372.729827]       Not tainted 5.16.0-rc8 #7
  [372.745907] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [372.767106] task:btrfs-transacti state:D stack:    0 pid: 2347 ppid:     2 flags:0x00004000
  [372.787776] Call Trace:
  [372.801652]  <TASK>
  [372.812961]  __schedule+0xb56/0x4850
  [372.830011]  ? io_schedule_timeout+0x190/0x190
  [372.852547]  ? lockdep_hardirqs_on+0x7e/0x100
  [372.871761]  ? _raw_spin_unlock_irqrestore+0x3e/0x60
  [372.886792]  schedule+0xe0/0x270
  [372.901685]  wait_current_trans+0x22c/0x310 [btrfs]
  [372.919743]  ? btrfs_put_transaction+0x3d0/0x3d0 [btrfs]
  [372.938923]  ? finish_wait+0x270/0x270
  [372.959085]  ? join_transaction+0xc75/0xe30 [btrfs]
  [372.977706]  start_transaction+0x938/0x10a0 [btrfs]
  [372.997168]  transaction_kthread+0x19d/0x3c0 [btrfs]
  [373.013021]  ? btrfs_cleanup_transaction.isra.0+0xfc0/0xfc0 [btrfs]
  [373.031678]  kthread+0x3b9/0x490
  [373.047420]  ? _raw_spin_unlock_irq+0x24/0x50
  [373.064645]  ? set_kthread_struct+0x100/0x100
  [373.078571]  ret_from_fork+0x22/0x30
  [373.091197]  </TASK>
  [373.105611] INFO: task btrfs:3145 blocked for more than 123 seconds.
  [373.114147]       Not tainted 5.16.0-rc8 #7
  [373.120401] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [373.130393] task:btrfs           state:D stack:    0 pid: 3145 ppid:  3141 flags:0x00004000
  [373.140998] Call Trace:
  [373.145501]  <TASK>
  [373.149654]  __schedule+0xb56/0x4850
  [373.155306]  ? io_schedule_timeout+0x190/0x190
  [373.161965]  ? lockdep_hardirqs_on+0x7e/0x100
  [373.168469]  ? _raw_spin_unlock_irqrestore+0x3e/0x60
  [373.175468]  schedule+0xe0/0x270
  [373.180814]  wait_for_commit+0x104/0x150 [btrfs]
  [373.187643]  ? test_and_set_bit+0x20/0x20 [btrfs]
  [373.194772]  ? kmem_cache_free+0x124/0x550
  [373.201191]  ? btrfs_put_transaction+0x69/0x3d0 [btrfs]
  [373.208738]  ? finish_wait+0x270/0x270
  [373.214704]  ? __btrfs_end_transaction+0x347/0x7b0 [btrfs]
  [373.222342]  btrfs_commit_transaction+0x44d/0x2610 [btrfs]
  [373.230233]  ? join_transaction+0x255/0xe30 [btrfs]
  [373.237334]  ? btrfs_record_root_in_trans+0x4d/0x170 [btrfs]
  [373.245251]  ? btrfs_apply_pending_changes+0x50/0x50 [btrfs]
  [373.253296]  relocate_block_group+0x105/0xc20 [btrfs]
  [373.260533]  ? mutex_lock_io_nested+0x1270/0x1270
  [373.267516]  ? btrfs_wait_nocow_writers+0x85/0x180 [btrfs]
  [373.275155]  ? merge_reloc_roots+0x710/0x710 [btrfs]
  [373.283602]  ? btrfs_wait_ordered_extents+0xd30/0xd30 [btrfs]
  [373.291934]  ? kmem_cache_free+0x124/0x550
  [373.298180]  btrfs_relocate_block_group+0x35c/0x930 [btrfs]
  [373.306047]  btrfs_relocate_chunk+0x85/0x210 [btrfs]
  [373.313229]  btrfs_balance+0x12f4/0x2d20 [btrfs]
  [373.320227]  ? lock_release+0x3a9/0x6d0
  [373.326206]  ? btrfs_relocate_chunk+0x210/0x210 [btrfs]
  [373.333591]  ? lock_is_held_type+0xe4/0x140
  [373.340031]  ? rcu_read_lock_sched_held+0x3f/0x70
  [373.346910]  btrfs_ioctl_balance+0x548/0x700 [btrfs]
  [373.354207]  btrfs_ioctl+0x7f2/0x71b0 [btrfs]
  [373.360774]  ? lockdep_hardirqs_on_prepare+0x410/0x410
  [373.367957]  ? lockdep_hardirqs_on_prepare+0x410/0x410
  [373.375327]  ? btrfs_ioctl_get_supported_features+0x20/0x20 [btrfs]
  [373.383841]  ? find_held_lock+0x2c/0x110
  [373.389993]  ? lock_release+0x3a9/0x6d0
  [373.395828]  ? mntput_no_expire+0xf7/0xad0
  [373.402083]  ? lock_is_held_type+0xe4/0x140
  [373.408249]  ? vfs_fileattr_set+0x9f0/0x9f0
  [373.414486]  ? selinux_file_ioctl+0x349/0x4e0
  [373.420938]  ? trace_raw_output_lock+0xb4/0xe0
  [373.427442]  ? selinux_inode_getsecctx+0x80/0x80
  [373.434224]  ? lockdep_hardirqs_on+0x7e/0x100
  [373.440660]  ? force_qs_rnp+0x2a0/0x6b0
  [373.446534]  ? lock_is_held_type+0x9b/0x140
  [373.452763]  ? __blkcg_punt_bio_submit+0x1b0/0x1b0
  [373.459732]  ? security_file_ioctl+0x50/0x90
  [373.466089]  __x64_sys_ioctl+0x127/0x190
  [373.472022]  do_syscall_64+0x3b/0x90
  [373.477513]  entry_SYSCALL_64_after_hwframe+0x44/0xae
  [373.484823] RIP: 0033:0x7f8f4af7e2bb
  [373.490493] RSP: 002b:00007ffcbf936178 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
  [373.500197] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8f4af7e2bb
  [373.509451] RDX: 00007ffcbf936220 RSI: 00000000c4009420 RDI: 0000000000000003
  [373.518659] RBP: 00007ffcbf93774a R08: 0000000000000013 R09: 00007f8f4b02d4e0
  [373.527872] R10: 00007f8f4ae87740 R11: 0000000000000246 R12: 0000000000000001
  [373.537222] R13: 00007ffcbf936220 R14: 0000000000000000 R15: 0000000000000002
  [373.546506]  </TASK>
  [373.550878] INFO: task btrfs:3146 blocked for more than 123 seconds.
  [373.559383]       Not tainted 5.16.0-rc8 #7
  [373.565748] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  [373.575748] task:btrfs           state:D stack:    0 pid: 3146 ppid:  2168 flags:0x00000000
  [373.586314] Call Trace:
  [373.590846]  <TASK>
  [373.595121]  __schedule+0xb56/0x4850
  [373.600901]  ? __lock_acquire+0x23db/0x5030
  [373.607176]  ? io_schedule_timeout+0x190/0x190
  [373.613954]  schedule+0xe0/0x270
  [373.619157]  schedule_timeout+0x168/0x220
  [373.625170]  ? usleep_range_state+0x150/0x150
  [373.631653]  ? mark_held_locks+0x9e/0xe0
  [373.637767]  ? do_raw_spin_lock+0x11e/0x250
  [373.643993]  ? lockdep_hardirqs_on_prepare+0x17b/0x410
  [373.651267]  ? _raw_spin_unlock_irq+0x24/0x50
  [373.657677]  ? lockdep_hardirqs_on+0x7e/0x100
  [373.664103]  wait_for_completion+0x163/0x250
  [373.670437]  ? bit_wait_timeout+0x160/0x160
  [373.676585]  btrfs_quota_disable+0x176/0x9a0 [btrfs]
  [373.683979]  ? btrfs_quota_enable+0x12f0/0x12f0 [btrfs]
  [373.691340]  ? down_write+0xd0/0x130
  [373.696880]  ? down_write_killable+0x150/0x150
  [373.703352]  btrfs_ioctl+0x3945/0x71b0 [btrfs]
  [373.710061]  ? find_held_lock+0x2c/0x110
  [373.716192]  ? lock_release+0x3a9/0x6d0
  [373.722047]  ? __handle_mm_fault+0x23cd/0x3050
  [373.728486]  ? btrfs_ioctl_get_supported_features+0x20/0x20 [btrfs]
  [373.737032]  ? set_pte+0x6a/0x90
  [373.742271]  ? do_raw_spin_unlock+0x55/0x1f0
  [373.748506]  ? lock_is_held_type+0xe4/0x140
  [373.754792]  ? vfs_fileattr_set+0x9f0/0x9f0
  [373.761083]  ? selinux_file_ioctl+0x349/0x4e0
  [373.767521]  ? selinux_inode_getsecctx+0x80/0x80
  [373.774247]  ? __up_read+0x182/0x6e0
  [373.780026]  ? count_memcg_events.constprop.0+0x46/0x60
  [373.787281]  ? up_write+0x460/0x460
  [373.792932]  ? security_file_ioctl+0x50/0x90
  [373.799232]  __x64_sys_ioctl+0x127/0x190
  [373.805237]  do_syscall_64+0x3b/0x90
  [373.810947]  entry_SYSCALL_64_after_hwframe+0x44/0xae
  [373.818102] RIP: 0033:0x7f1383ea02bb
  [373.823847] RSP: 002b:00007fffeb4d71f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
  [373.833641] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1383ea02bb
  [373.842961] RDX: 00007fffeb4d7210 RSI: 00000000c0109428 RDI: 0000000000000003
  [373.852179] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
  [373.861408] R10: 00007f1383daec78 R11: 0000000000000202 R12: 00007fffeb4d874a
  [373.870647] R13: 0000000000493099 R14: 0000000000000001 R15: 0000000000000000
  [373.879838]  </TASK>
  [373.884018]
               Showing all locks held in the system:
  [373.894250] 3 locks held by kworker/4:1/58:
  [373.900356] 1 lock held by khungtaskd/63:
  [373.906333]  #0: ffffffff8945ff60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
  [373.917307] 3 locks held by kworker/u16:6/103:
  [373.923938]  #0: ffff888127b4f138 ((wq_completion)btrfs-qgroup-rescan){+.+.}-{0:0}, at: process_one_work+0x712/0x1320
  [373.936555]  #1: ffff88810b817dd8 ((work_completion)(&work->normal_work)){+.+.}-{0:0}, at: process_one_work+0x73f/0x1320
  [373.951109]  #2: ffff888102dd4650 (sb_internal#2){.+.+}-{0:0}, at: btrfs_qgroup_rescan_worker+0x1f6/0x10c0 [btrfs]
  [373.964027] 2 locks held by less/1803:
  [373.969982]  #0: ffff88813ed56098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80
  [373.981295]  #1: ffffc90000b3b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9e2/0x1060
  [373.992969] 1 lock held by btrfs-transacti/2347:
  [373.999893]  #0: ffff88813d4887a8 (&fs_info->transaction_kthread_mutex){+.+.}-{3:3}, at: transaction_kthread+0xe3/0x3c0 [btrfs]
  [374.015872] 3 locks held by btrfs/3145:
  [374.022298]  #0: ffff888102dd4460 (sb_writers#18){.+.+}-{0:0}, at: btrfs_ioctl_balance+0xc3/0x700 [btrfs]
  [374.034456]  #1: ffff88813d48a0a0 (&fs_info->reclaim_bgs_lock){+.+.}-{3:3}, at: btrfs_balance+0xfe5/0x2d20 [btrfs]
  [374.047646]  #2: ffff88813d488838 (&fs_info->cleaner_mutex){+.+.}-{3:3}, at: btrfs_relocate_block_group+0x354/0x930 [btrfs]
  [374.063295] 4 locks held by btrfs/3146:
  [374.069647]  #0: ffff888102dd4460 (sb_writers#18){.+.+}-{0:0}, at: btrfs_ioctl+0x38b1/0x71b0 [btrfs]
  [374.081601]  #1: ffff88813d488bb8 (&fs_info->subvol_sem){+.+.}-{3:3}, at: btrfs_ioctl+0x38fd/0x71b0 [btrfs]
  [374.094283]  #2: ffff888102dd4650 (sb_internal#2){.+.+}-{0:0}, at: btrfs_quota_disable+0xc8/0x9a0 [btrfs]
  [374.106885]  #3: ffff88813d489800 (&fs_info->qgroup_ioctl_lock){+.+.}-{3:3}, at: btrfs_quota_disable+0xd5/0x9a0 [btrfs]

  [374.126780] =============================================

To avoid the deadlock, wait for the qgroup rescan worker to complete
before starting the transaction for the quota disable ioctl. Clear
BTRFS_FS_QUOTA_ENABLE flag before the wait and the transaction to
request the worker to complete. On transaction start failure, set the
BTRFS_FS_QUOTA_ENABLE flag again. These BTRFS_FS_QUOTA_ENABLE flag
changes can be done safely since the function btrfs_quota_disable is not
called concurrently because of fs_info->subvol_sem.

Also check the BTRFS_FS_QUOTA_ENABLE flag in qgroup_rescan_init to avoid
another qgroup rescan worker to start after the previous qgroup worker
completed.

CC: stable@vger.kernel.org # 5.4+
Suggested-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/qgroup.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index f65aa4ed5ca1e..e39a12037b403 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1186,9 +1186,24 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
 	struct btrfs_trans_handle *trans = NULL;
 	int ret = 0;
 
+	/*
+	 * We need to have subvol_sem write locked, to prevent races between
+	 * concurrent tasks trying to disable quotas, because we will unlock
+	 * and relock qgroup_ioctl_lock across BTRFS_FS_QUOTA_ENABLED changes.
+	 */
+	lockdep_assert_held_write(&fs_info->subvol_sem);
+
 	mutex_lock(&fs_info->qgroup_ioctl_lock);
 	if (!fs_info->quota_root)
 		goto out;
+
+	/*
+	 * Request qgroup rescan worker to complete and wait for it. This wait
+	 * must be done before transaction start for quota disable since it may
+	 * deadlock with transaction by the qgroup rescan worker.
+	 */
+	clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
+	btrfs_qgroup_wait_for_completion(fs_info, false);
 	mutex_unlock(&fs_info->qgroup_ioctl_lock);
 
 	/*
@@ -1206,14 +1221,13 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
 	if (IS_ERR(trans)) {
 		ret = PTR_ERR(trans);
 		trans = NULL;
+		set_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
 		goto out;
 	}
 
 	if (!fs_info->quota_root)
 		goto out;
 
-	clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
-	btrfs_qgroup_wait_for_completion(fs_info, false);
 	spin_lock(&fs_info->qgroup_lock);
 	quota_root = fs_info->quota_root;
 	fs_info->quota_root = NULL;
@@ -3390,6 +3404,9 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
 			btrfs_warn(fs_info,
 			"qgroup rescan init failed, qgroup is not enabled");
 			ret = -EINVAL;
+		} else if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) {
+			/* Quota disable is in progress */
+			ret = -EBUSY;
 		}
 
 		if (ret) {
-- 
GitLab


From f071d9fa857582d7bd77f4906691f73d3edeab73 Mon Sep 17 00:00:00 2001
From: Nick Lopez <github@glowingmonkey.org>
Date: Sat, 22 Jan 2022 01:19:06 -0700
Subject: [PATCH 3602/4878] drm/nouveau: fix off by one in BIOS boundary
 checking

commit 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a upstream.

Bounds checking when parsing init scripts embedded in the BIOS reject
access to the last byte. This causes driver initialization to fail on
Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working
console.

This is probably only seen on OpenFirmware machines like PowerPC Macs
because the BIOS image provided by OF is only the used parts of the ROM,
not a power-of-two blocks read from PCI directly so PCs always have
empty bytes at the end that are never accessed.

Signed-off-by: Nick Lopez <github@glowingmonkey.org>
Fixes: 4d4e9907ff572 ("drm/nouveau/bios: guard against out-of-bounds accesses to image")
Cc: <stable@vger.kernel.org> # v4.10+
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220122081906.2633061-1-github@glowingmonkey.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
index f3c30b2a788e8..8bff14ae16b0e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c
@@ -38,7 +38,7 @@ nvbios_addr(struct nvkm_bios *bios, u32 *addr, u8 size)
 		*addr += bios->imaged_addr;
 	}
 
-	if (unlikely(*addr + size >= bios->size)) {
+	if (unlikely(*addr + size > bios->size)) {
 		nvkm_error(&bios->subdev, "OOB %d %08x %08x\n", size, p, *addr);
 		return false;
 	}
-- 
GitLab


From a0c73dbdd197cc78289cd56a9df8d00f53dcfada Mon Sep 17 00:00:00 2001
From: Aun-Ali Zaidi <admin@kodeit.net>
Date: Sat, 29 Jan 2022 05:49:55 +0000
Subject: [PATCH 3603/4878] drm/amd/display: Force link_rate as LINK_RATE_RBR2
 for 2018 15" Apple Retina panels

commit 30fbce374745a9c6af93c775a5ac49a97f822fda upstream.

The eDP link rate reported by the DP_MAX_LINK_RATE dpcd register (0xa) is
contradictory to the highest rate supported reported by
EDID (0xc = LINK_RATE_RBR2). The effects of this compounded with commit
'4a8ca46bae8a ("drm/amd/display: Default max bpc to 16 for eDP")' results
in no display modes being found and a dark panel.

For now, simply force the maximum supported link rate for the eDP attached
2018 15" Apple Retina panels.

Additionally, we must also check the firmware revision since the device ID
reported by the DPCD is identical to that of the more capable 16,1,
incorrectly quirking it. We also use said firmware check to quirk the
refreshed 15,1 models with Vega graphics as they use a slightly newer
firmware version.

Tested-by: Aun-Ali Zaidi <admin@kodeit.net>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Aun-Ali Zaidi <admin@kodeit.net>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../gpu/drm/amd/display/dc/core/dc_link_dp.c  | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index a7f8caf1086b9..0e359a299f9ec 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -3587,6 +3587,26 @@ static bool retrieve_link_cap(struct dc_link *link)
 		dp_hw_fw_revision.ieee_fw_rev,
 		sizeof(dp_hw_fw_revision.ieee_fw_rev));
 
+	/* Quirk for Apple MBP 2018 15" Retina panels: wrong DP_MAX_LINK_RATE */
+	{
+		uint8_t str_mbp_2018[] = { 101, 68, 21, 103, 98, 97 };
+		uint8_t fwrev_mbp_2018[] = { 7, 4 };
+		uint8_t fwrev_mbp_2018_vega[] = { 8, 4 };
+
+		/* We also check for the firmware revision as 16,1 models have an
+		 * identical device id and are incorrectly quirked otherwise.
+		 */
+		if ((link->dpcd_caps.sink_dev_id == 0x0010fa) &&
+		    !memcmp(link->dpcd_caps.sink_dev_id_str, str_mbp_2018,
+			     sizeof(str_mbp_2018)) &&
+		    (!memcmp(link->dpcd_caps.sink_fw_revision, fwrev_mbp_2018,
+			     sizeof(fwrev_mbp_2018)) ||
+		    !memcmp(link->dpcd_caps.sink_fw_revision, fwrev_mbp_2018_vega,
+			     sizeof(fwrev_mbp_2018_vega)))) {
+			link->reported_link_cap.link_rate = LINK_RATE_RBR2;
+		}
+	}
+
 	memset(&link->dpcd_caps.dsc_caps, '\0',
 			sizeof(link->dpcd_caps.dsc_caps));
 	memset(&link->dpcd_caps.fec_cap, '\0', sizeof(link->dpcd_caps.fec_cap));
-- 
GitLab


From 2d83a7463d75661715616277f9664b2f0d6a513e Mon Sep 17 00:00:00 2001
From: Uday Shankar <ushankar@purestorage.com>
Date: Thu, 20 Jan 2022 12:17:37 -0800
Subject: [PATCH 3604/4878] nvme-fabrics: fix state check in
 nvmf_ctlr_matches_baseopts()

commit 6a51abdeb259a56d95f13cc67e3a0838bcda0377 upstream.

Controller deletion/reset, immediately followed by or concurrent with
a reconnect, is hard failing the connect attempt resulting in a
complete loss of connectivity to the controller.

In the connect request, fabrics looks for an existing controller with
the same address components and aborts the connect if a controller
already exists and the duplicate connect option isn't set. The match
routine filters out controllers that are dead or dying, so they don't
interfere with the new connect request.

When NVME_CTRL_DELETING_NOIO was added, it missed updating the state
filters in the nvmf_ctlr_matches_baseopts() routine. Thus, when in this
new state, it's seen as a live controller and fails the connect request.

Correct by adding the DELETING_NIO state to the match checks.

Fixes: ecca390e8056 ("nvme: fix deadlock in disconnect during scan_work and/or ana_work")
Cc: <stable@vger.kernel.org> # v5.7+
Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/fabrics.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index a9c1e3b4585ec..78467cb3f343e 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -153,6 +153,7 @@ nvmf_ctlr_matches_baseopts(struct nvme_ctrl *ctrl,
 			struct nvmf_ctrl_options *opts)
 {
 	if (ctrl->state == NVME_CTRL_DELETING ||
+	    ctrl->state == NVME_CTRL_DELETING_NOIO ||
 	    ctrl->state == NVME_CTRL_DEAD ||
 	    strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) ||
 	    strcmp(opts->host->nqn, ctrl->opts->host->nqn) ||
-- 
GitLab


From bce7f5d74d74d6f97c8ce0a0dcb741f667ce68a5 Mon Sep 17 00:00:00 2001
From: Pasha Tatashin <pasha.tatashin@soleen.com>
Date: Thu, 3 Feb 2022 20:49:10 -0800
Subject: [PATCH 3605/4878] mm/debug_vm_pgtable: remove pte entry from the page
 table

commit fb5222aae64fe25e5f3ebefde8214dcf3ba33ca5 upstream.

Patch series "page table check fixes and cleanups", v5.

This patch (of 4):

The pte entry that is used in pte_advanced_tests() is never removed from
the page table at the end of the test.

The issue is detected by page_table_check, to repro compile kernel with
the following configs:

CONFIG_DEBUG_VM_PGTABLE=y
CONFIG_PAGE_TABLE_CHECK=y
CONFIG_PAGE_TABLE_CHECK_ENFORCED=y

During the boot the following BUG is printed:

  debug_vm_pgtable: [debug_vm_pgtable         ]: Validating architecture page table helpers
  ------------[ cut here ]------------
  kernel BUG at mm/page_table_check.c:162!
  invalid opcode: 0000 [#1] PREEMPT SMP PTI
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.16.0-11413-g2c271fe77d52 #3
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014
  ...

The entry should be properly removed from the page table before the page
is released to the free list.

Link: https://lkml.kernel.org/r/20220131203249.2832273-1-pasha.tatashin@soleen.com
Link: https://lkml.kernel.org/r/20220131203249.2832273-2-pasha.tatashin@soleen.com
Fixes: a5c3b9ffb0f4 ("mm/debug_vm_pgtable: add tests validating advanced arch page table helpers")
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Tested-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Rientjes <rientjes@google.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>	[5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/debug_vm_pgtable.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index 12ebc97e8b435..d6fbf28ebf72c 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -128,6 +128,8 @@ static void __init pte_advanced_tests(struct mm_struct *mm,
 	ptep_test_and_clear_young(vma, vaddr, ptep);
 	pte = ptep_get(ptep);
 	WARN_ON(pte_young(pte));
+
+	ptep_get_and_clear_full(mm, vaddr, ptep, 1);
 }
 
 static void __init pte_savedwrite_tests(unsigned long pfn, pgprot_t prot)
-- 
GitLab


From 7053188ddba3f6e7402000c94496066fa700891e Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Thu, 3 Feb 2022 20:49:29 -0800
Subject: [PATCH 3606/4878] mm/pgtable: define pte_index so that preprocessor
 could recognize it

commit 314c459a6fe0957b5885fbc65c53d51444092880 upstream.

Since commit 974b9b2c68f3 ("mm: consolidate pte_index() and
pte_offset_*() definitions") pte_index is a static inline and there is
no define for it that can be recognized by the preprocessor.  As a
result, vm_insert_pages() uses slower loop over vm_insert_page() instead
of insert_pages() that amortizes the cost of spinlock operations when
inserting multiple pages.

Link: https://lkml.kernel.org/r/20220111145457.20748-1-rppt@kernel.org
Fixes: 974b9b2c68f3 ("mm: consolidate pte_index() and pte_offset_*() definitions")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reported-by: Christian Dietrich <stettberger@dokucode.de>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/pgtable.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 7c869ea8dffc8..9def1ac19546b 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -44,6 +44,7 @@ static inline unsigned long pte_index(unsigned long address)
 {
 	return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1);
 }
+#define pte_index pte_index
 
 #ifndef pmd_index
 static inline unsigned long pmd_index(unsigned long address)
-- 
GitLab


From 352715593e81b917ce1b321e794549815b850134 Mon Sep 17 00:00:00 2001
From: Lang Yu <lang.yu@amd.com>
Date: Thu, 3 Feb 2022 20:49:37 -0800
Subject: [PATCH 3607/4878] mm/kmemleak: avoid scanning potential huge holes

commit c10a0f877fe007021d70f9cada240f42adc2b5db upstream.

When using devm_request_free_mem_region() and devm_memremap_pages() to
add ZONE_DEVICE memory, if requested free mem region's end pfn were
huge(e.g., 0x400000000), the node_end_pfn() will be also huge (see
move_pfn_range_to_zone()).  Thus it creates a huge hole between
node_start_pfn() and node_end_pfn().

We found on some AMD APUs, amdkfd requested such a free mem region and
created a huge hole.  In such a case, following code snippet was just
doing busy test_bit() looping on the huge hole.

  for (pfn = start_pfn; pfn < end_pfn; pfn++) {
	struct page *page = pfn_to_online_page(pfn);
		if (!page)
			continue;
	...
  }

So we got a soft lockup:

  watchdog: BUG: soft lockup - CPU#6 stuck for 26s! [bash:1221]
  CPU: 6 PID: 1221 Comm: bash Not tainted 5.15.0-custom #1
  RIP: 0010:pfn_to_online_page+0x5/0xd0
  Call Trace:
    ? kmemleak_scan+0x16a/0x440
    kmemleak_write+0x306/0x3a0
    ? common_file_perm+0x72/0x170
    full_proxy_write+0x5c/0x90
    vfs_write+0xb9/0x260
    ksys_write+0x67/0xe0
    __x64_sys_write+0x1a/0x20
    do_syscall_64+0x3b/0xc0
    entry_SYSCALL_64_after_hwframe+0x44/0xae

I did some tests with the patch.

(1) amdgpu module unloaded

before the patch:

  real    0m0.976s
  user    0m0.000s
  sys     0m0.968s

after the patch:

  real    0m0.981s
  user    0m0.000s
  sys     0m0.973s

(2) amdgpu module loaded

before the patch:

  real    0m35.365s
  user    0m0.000s
  sys     0m35.354s

after the patch:

  real    0m1.049s
  user    0m0.000s
  sys     0m1.042s

Link: https://lkml.kernel.org/r/20211108140029.721144-1-lang.yu@amd.com
Signed-off-by: Lang Yu <lang.yu@amd.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/kmemleak.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index c0014d3b91c10..56fcfcb8e6173 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1401,7 +1401,8 @@ static void kmemleak_scan(void)
 {
 	unsigned long flags;
 	struct kmemleak_object *object;
-	int i;
+	struct zone *zone;
+	int __maybe_unused i;
 	int new_leaks = 0;
 
 	jiffies_last_scan = jiffies;
@@ -1441,9 +1442,9 @@ static void kmemleak_scan(void)
 	 * Struct page scanning for each node.
 	 */
 	get_online_mems();
-	for_each_online_node(i) {
-		unsigned long start_pfn = node_start_pfn(i);
-		unsigned long end_pfn = node_end_pfn(i);
+	for_each_populated_zone(zone) {
+		unsigned long start_pfn = zone->zone_start_pfn;
+		unsigned long end_pfn = zone_end_pfn(zone);
 		unsigned long pfn;
 
 		for (pfn = start_pfn; pfn < end_pfn; pfn++) {
@@ -1452,8 +1453,8 @@ static void kmemleak_scan(void)
 			if (!page)
 				continue;
 
-			/* only scan pages belonging to this node */
-			if (page_to_nid(page) != i)
+			/* only scan pages belonging to this zone */
+			if (page_zone(page) != zone)
 				continue;
 			/* only scan if page is in use */
 			if (page_count(page) == 0)
-- 
GitLab


From 30de3bc099780232129c3737844ac37a809514a9 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Thu, 3 Feb 2022 22:42:09 -0500
Subject: [PATCH 3608/4878] block: bio-integrity: Advance seed correctly for
 larger interval sizes

commit b13e0c71856817fca67159b11abac350e41289f5 upstream.

Commit 309a62fa3a9e ("bio-integrity: bio_integrity_advance must update
integrity seed") added code to update the integrity seed value when
advancing a bio. However, it failed to take into account that the
integrity interval might be larger than the 512-byte block layer
sector size. This broke bio splitting on PI devices with 4KB logical
blocks.

The seed value should be advanced by bio_integrity_intervals() and not
the number of sectors.

Cc: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: stable@vger.kernel.org
Fixes: 309a62fa3a9e ("bio-integrity: bio_integrity_advance must update integrity seed")
Tested-by: Dmitry Ivanov <dmitry.ivanov2@hpe.com>
Reported-by: Alexey Lyashkov <alexey.lyashkov@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220204034209.4193-1-martin.petersen@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/bio-integrity.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 9ffd7e2895547..4f6f140a44e06 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -384,7 +384,7 @@ void bio_integrity_advance(struct bio *bio, unsigned int bytes_done)
 	struct blk_integrity *bi = blk_get_integrity(bio->bi_disk);
 	unsigned bytes = bio_integrity_bytes(bi, bytes_done >> 9);
 
-	bip->bip_iter.bi_sector += bytes_done >> 9;
+	bip->bip_iter.bi_sector += bio_integrity_intervals(bi, bytes_done >> 9);
 	bvec_iter_advance(bip->bip_vec, &bip->bip_iter, bytes);
 }
 
-- 
GitLab


From 5d40f1bdad3dd1a177f21a90ad4353c1ed40ba3a Mon Sep 17 00:00:00 2001
From: Jordy Zomer <jordy@pwning.systems>
Date: Sat, 29 Jan 2022 16:06:04 +0100
Subject: [PATCH 3609/4878] dma-buf: heaps: Fix potential spectre v1 gadget

commit 92c4cfaee6872038563c5b6f2e8e613f9d84d47d upstream.

It appears like nr could be a Spectre v1 gadget as it's supplied by a
user and used as an array index. Prevent the contents
of kernel memory from being leaked to userspace via speculative
execution by using array_index_nospec.

Signed-off-by: Jordy Zomer <jordy@pwning.systems>
Fixes: c02a81fba74f ("dma-buf: Add dma-buf heaps framework")
Cc: <stable@vger.kernel.org> # v5.6+
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
 [sumits: added fixes and cc: stable tags]
Link: https://patchwork.freedesktop.org/patch/msgid/20220129150604.3461652-1-jordy@pwning.systems
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma-buf/dma-heap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index afd22c9dbdcfa..798f86fcd50fa 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -14,6 +14,7 @@
 #include <linux/xarray.h>
 #include <linux/list.h>
 #include <linux/slab.h>
+#include <linux/nospec.h>
 #include <linux/uaccess.h>
 #include <linux/syscalls.h>
 #include <linux/dma-heap.h>
@@ -123,6 +124,7 @@ static long dma_heap_ioctl(struct file *file, unsigned int ucmd,
 	if (nr >= ARRAY_SIZE(dma_heap_ioctl_cmds))
 		return -EINVAL;
 
+	nr = array_index_nospec(nr, ARRAY_SIZE(dma_heap_ioctl_cmds));
 	/* Get the kernel ioctl cmd that matches */
 	kcmd = dma_heap_ioctl_cmds[nr];
 
-- 
GitLab


From 4a9bd1e6780fc59f81466ec3489d5ad535a37190 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Sat, 15 Jan 2022 18:02:35 -0500
Subject: [PATCH 3610/4878] IB/hfi1: Fix AIP early init panic

commit 5f8f55b92edd621f056bdf09e572092849fabd83 upstream.

An early failure in hfi1_ipoib_setup_rn() can lead to the following panic:

  BUG: unable to handle kernel NULL pointer dereference at 00000000000001b0
  PGD 0 P4D 0
  Oops: 0002 [#1] SMP NOPTI
  Workqueue: events work_for_cpu_fn
  RIP: 0010:try_to_grab_pending+0x2b/0x140
  Code: 1f 44 00 00 41 55 41 54 55 48 89 d5 53 48 89 fb 9c 58 0f 1f 44 00 00 48 89 c2 fa 66 0f 1f 44 00 00 48 89 55 00 40 84 f6 75 77 <f0> 48 0f ba 2b 00 72 09 31 c0 5b 5d 41 5c 41 5d c3 48 89 df e8 6c
  RSP: 0018:ffffb6b3cf7cfa48 EFLAGS: 00010046
  RAX: 0000000000000246 RBX: 00000000000001b0 RCX: 0000000000000000
  RDX: 0000000000000246 RSI: 0000000000000000 RDI: 00000000000001b0
  RBP: ffffb6b3cf7cfa70 R08: 0000000000000f09 R09: 0000000000000001
  R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
  R13: ffffb6b3cf7cfa90 R14: ffffffff9b2fbfc0 R15: ffff8a4fdf244690
  FS:  0000000000000000(0000) GS:ffff8a527f400000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00000000000001b0 CR3: 00000017e2410003 CR4: 00000000007706f0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  PKRU: 55555554
  Call Trace:
   __cancel_work_timer+0x42/0x190
   ? dev_printk_emit+0x4e/0x70
   iowait_cancel_work+0x15/0x30 [hfi1]
   hfi1_ipoib_txreq_deinit+0x5a/0x220 [hfi1]
   ? dev_err+0x6c/0x90
   hfi1_ipoib_netdev_dtor+0x15/0x30 [hfi1]
   hfi1_ipoib_setup_rn+0x10e/0x150 [hfi1]
   rdma_init_netdev+0x5a/0x80 [ib_core]
   ? hfi1_ipoib_free_rdma_netdev+0x20/0x20 [hfi1]
   ipoib_intf_init+0x6c/0x350 [ib_ipoib]
   ipoib_intf_alloc+0x5c/0xc0 [ib_ipoib]
   ipoib_add_one+0xbe/0x300 [ib_ipoib]
   add_client_context+0x12c/0x1a0 [ib_core]
   enable_device_and_get+0xdc/0x1d0 [ib_core]
   ib_register_device+0x572/0x6b0 [ib_core]
   rvt_register_device+0x11b/0x220 [rdmavt]
   hfi1_register_ib_device+0x6b4/0x770 [hfi1]
   do_init_one.isra.20+0x3e3/0x680 [hfi1]
   local_pci_probe+0x41/0x90
   work_for_cpu_fn+0x16/0x20
   process_one_work+0x1a7/0x360
   ? create_worker+0x1a0/0x1a0
   worker_thread+0x1cf/0x390
   ? create_worker+0x1a0/0x1a0
   kthread+0x116/0x130
   ? kthread_flush_work_fn+0x10/0x10
   ret_from_fork+0x1f/0x40

The panic happens in hfi1_ipoib_txreq_deinit() because there is a NULL
deref when hfi1_ipoib_netdev_dtor() is called in this error case.

hfi1_ipoib_txreq_init() and hfi1_ipoib_rxq_init() are self unwinding so
fix by adjusting the error paths accordingly.

Other changes:
- hfi1_ipoib_free_rdma_netdev() is deleted including the free_netdev()
  since the netdev core code deletes calls free_netdev()
- The switch to the accelerated entrances is moved to the success path.

Cc: stable@vger.kernel.org
Fixes: d99dc602e2a5 ("IB/hfi1: Add functions to transmit datagram ipoib packets")
Link: https://lore.kernel.org/r/1642287756-182313-4-git-send-email-mike.marciniszyn@cornelisnetworks.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/hfi1/ipoib_main.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/ipoib_main.c b/drivers/infiniband/hw/hfi1/ipoib_main.c
index 9f71b9d706bd9..22299b0b7df0e 100644
--- a/drivers/infiniband/hw/hfi1/ipoib_main.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_main.c
@@ -185,12 +185,6 @@ static void hfi1_ipoib_netdev_dtor(struct net_device *dev)
 	free_percpu(priv->netstats);
 }
 
-static void hfi1_ipoib_free_rdma_netdev(struct net_device *dev)
-{
-	hfi1_ipoib_netdev_dtor(dev);
-	free_netdev(dev);
-}
-
 static void hfi1_ipoib_set_id(struct net_device *dev, int id)
 {
 	struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev);
@@ -227,24 +221,23 @@ static int hfi1_ipoib_setup_rn(struct ib_device *device,
 	priv->port_num = port_num;
 	priv->netdev_ops = netdev->netdev_ops;
 
-	netdev->netdev_ops = &hfi1_ipoib_netdev_ops;
-
 	ib_query_pkey(device, port_num, priv->pkey_index, &priv->pkey);
 
 	rc = hfi1_ipoib_txreq_init(priv);
 	if (rc) {
 		dd_dev_err(dd, "IPoIB netdev TX init - failed(%d)\n", rc);
-		hfi1_ipoib_free_rdma_netdev(netdev);
 		return rc;
 	}
 
 	rc = hfi1_ipoib_rxq_init(netdev);
 	if (rc) {
 		dd_dev_err(dd, "IPoIB netdev RX init - failed(%d)\n", rc);
-		hfi1_ipoib_free_rdma_netdev(netdev);
+		hfi1_ipoib_txreq_deinit(priv);
 		return rc;
 	}
 
+	netdev->netdev_ops = &hfi1_ipoib_netdev_ops;
+
 	netdev->priv_destructor = hfi1_ipoib_netdev_dtor;
 	netdev->needs_free_netdev = true;
 
-- 
GitLab


From 080f371d984e8039c66db87f3c54804b0d172329 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 4 Feb 2022 17:47:55 -0800
Subject: [PATCH 3611/4878] Revert "ASoC: mediatek: Check for error clk
 pointer"

This reverts commit d491a2c2cf96f9f3d855cf0bcd807d48ccb98e81 which is
commit 9de2b9286a6dd16966959b3cb34fc2ddfd39213e upstream

With this patch in the tree, Chromebooks running the affected hardware
no longer boot. Bisect points to this patch, and reverting it fixes
the problem.

An analysis of the code with this patch applied shows:

        ret = init_clks(pdev, clk);
        if (ret)
                return ERR_PTR(ret);
...
                for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
                        struct clk *c = clk[data->clk_id[j]];

                        if (IS_ERR(c)) {
                                dev_err(&pdev->dev, "%s: clk unavailable\n",
                                        data->name);
                                return ERR_CAST(c);
                        }

                        scpd->clk[j] = c;
                }

Not all clocks in the clk_names array have to be present. Only the clocks
in the data->clk_id array are actually needed. The code already checks if
the required clocks are available and bails out if not. The assumption that
all clocks have to be present is wrong, and commit 9de2b9286a6d needs to be
reverted.

Fixes: 9de2b9286a6d ("ASoC: mediatek: Check for error clk pointer")
Cc: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Cc: Mark Brown <broonie@kernel.org>
Cc: James Liao <jamesjj.liao@mediatek.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com
Cc: Frank Wunderlich <frank-w@public-files.de>
Cc: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/lkml/20220205014755.699603-1-linux@roeck-us.net/
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/soc/mediatek/mtk-scpsys.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index 670cc82d17dc2..ca75b14931ec9 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -411,17 +411,12 @@ out:
 	return ret;
 }
 
-static int init_clks(struct platform_device *pdev, struct clk **clk)
+static void init_clks(struct platform_device *pdev, struct clk **clk)
 {
 	int i;
 
-	for (i = CLK_NONE + 1; i < CLK_MAX; i++) {
+	for (i = CLK_NONE + 1; i < CLK_MAX; i++)
 		clk[i] = devm_clk_get(&pdev->dev, clk_names[i]);
-		if (IS_ERR(clk[i]))
-			return PTR_ERR(clk[i]);
-	}
-
-	return 0;
 }
 
 static struct scp *init_scp(struct platform_device *pdev,
@@ -431,7 +426,7 @@ static struct scp *init_scp(struct platform_device *pdev,
 {
 	struct genpd_onecell_data *pd_data;
 	struct resource *res;
-	int i, j, ret;
+	int i, j;
 	struct scp *scp;
 	struct clk *clk[CLK_MAX];
 
@@ -486,9 +481,7 @@ static struct scp *init_scp(struct platform_device *pdev,
 
 	pd_data->num_domains = num;
 
-	ret = init_clks(pdev, clk);
-	if (ret)
-		return ERR_PTR(ret);
+	init_clks(pdev, clk);
 
 	for (i = 0; i < num; i++) {
 		struct scp_domain *scpd = &scp->domains[i];
-- 
GitLab


From aa4ecd995f591013bca21d3ce599691772c193b5 Mon Sep 17 00:00:00 2001
From: Yutian Yang <nglaive@gmail.com>
Date: Thu, 2 Sep 2021 14:55:07 -0700
Subject: [PATCH 3612/4878] memcg: charge fs_context and legacy_fs_context

commit bb902cb47cf93b33cd92b3b7a4019330a03ef57f upstream.

This patch adds accounting flags to fs_context and legacy_fs_context
allocation sites so that kernel could correctly charge these objects.

We have written a PoC to demonstrate the effect of the missing-charging
bugs.  The PoC takes around 1,200MB unaccounted memory, while it is
charged for only 362MB memory usage.  We evaluate the PoC on QEMU x86_64
v5.2.90 + Linux kernel v5.10.19 + Debian buster.  All the limitations
including ulimits and sysctl variables are set as default.  Specifically,
the hard NOFILE limit and nr_open in sysctl are both 1,048,576.

/*------------------------- POC code ----------------------------*/

#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/file.h>
#include <time.h>
#include <sys/wait.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <signal.h>
#include <sched.h>
#include <fcntl.h>
#include <linux/mount.h>

#define errExit(msg)    do { perror(msg); exit(EXIT_FAILURE); \
                        } while (0)

#define STACK_SIZE (8 * 1024)
#ifndef __NR_fsopen
#define __NR_fsopen 430
#endif
static inline int fsopen(const char *fs_name, unsigned int flags)
{
        return syscall(__NR_fsopen, fs_name, flags);
}

static char thread_stack[512][STACK_SIZE];

int thread_fn(void* arg)
{
  for (int i = 0; i< 800000; ++i) {
    int fsfd = fsopen("nfs", FSOPEN_CLOEXEC);
    if (fsfd == -1) {
      errExit("fsopen");
    }
  }
  while(1);
  return 0;
}

int main(int argc, char *argv[]) {
  int thread_pid;
  for (int i = 0; i < 1; ++i) {
    thread_pid = clone(thread_fn, thread_stack[i] + STACK_SIZE, \
      SIGCHLD, NULL);
  }
  while(1);
  return 0;
}

/*-------------------------- end --------------------------------*/

Link: https://lkml.kernel.org/r/1626517201-24086-1-git-send-email-nglaive@gmail.com
Signed-off-by: Yutian Yang <nglaive@gmail.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: <shenwenbo@zju.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fs_context.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/fs_context.c b/fs/fs_context.c
index b11677802ee13..740322dff4a30 100644
--- a/fs/fs_context.c
+++ b/fs/fs_context.c
@@ -231,7 +231,7 @@ static struct fs_context *alloc_fs_context(struct file_system_type *fs_type,
 	struct fs_context *fc;
 	int ret = -ENOMEM;
 
-	fc = kzalloc(sizeof(struct fs_context), GFP_KERNEL);
+	fc = kzalloc(sizeof(struct fs_context), GFP_KERNEL_ACCOUNT);
 	if (!fc)
 		return ERR_PTR(-ENOMEM);
 
@@ -631,7 +631,7 @@ const struct fs_context_operations legacy_fs_context_ops = {
  */
 static int legacy_init_fs_context(struct fs_context *fc)
 {
-	fc->fs_private = kzalloc(sizeof(struct legacy_fs_context), GFP_KERNEL);
+	fc->fs_private = kzalloc(sizeof(struct legacy_fs_context), GFP_KERNEL_ACCOUNT);
 	if (!fc->fs_private)
 		return -ENOMEM;
 	fc->ops = &legacy_fs_context_ops;
-- 
GitLab


From 371979069a577ee5bc1bcaaa39fb53d9e4dc7e3f Mon Sep 17 00:00:00 2001
From: Maor Gottlieb <maorg@nvidia.com>
Date: Tue, 18 Jan 2022 09:35:00 +0200
Subject: [PATCH 3613/4878] RDMA/cma: Use correct address when leaving
 multicast group

commit d9e410ebbed9d091b97bdf45b8a3792e2878dc48 upstream.

In RoCE we should use cma_iboe_set_mgid() and not cma_set_mgid to generate
the mgid, otherwise we will generate an IGMP for an incorrect address.

Fixes: b5de0c60cc30 ("RDMA/cma: Fix use after free race in roce multicast join")
Link: https://lore.kernel.org/r/913bc6783fd7a95fe71ad9454e01653ee6fb4a9a.1642491047.git.leonro@nvidia.com
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/cma.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 4d4ba09f6cf93..ce492134c1e5c 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -68,8 +68,8 @@ static const char * const cma_events[] = {
 	[RDMA_CM_EVENT_TIMEWAIT_EXIT]	 = "timewait exit",
 };
 
-static void cma_set_mgid(struct rdma_id_private *id_priv, struct sockaddr *addr,
-			 union ib_gid *mgid);
+static void cma_iboe_set_mgid(struct sockaddr *addr, union ib_gid *mgid,
+			      enum ib_gid_type gid_type);
 
 const char *__attribute_const__ rdma_event_msg(enum rdma_cm_event_type event)
 {
@@ -1840,17 +1840,19 @@ static void destroy_mc(struct rdma_id_private *id_priv,
 		if (dev_addr->bound_dev_if)
 			ndev = dev_get_by_index(dev_addr->net,
 						dev_addr->bound_dev_if);
-		if (ndev) {
+		if (ndev && !send_only) {
+			enum ib_gid_type gid_type;
 			union ib_gid mgid;
 
-			cma_set_mgid(id_priv, (struct sockaddr *)&mc->addr,
-				     &mgid);
-
-			if (!send_only)
-				cma_igmp_send(ndev, &mgid, false);
-
-			dev_put(ndev);
+			gid_type = id_priv->cma_dev->default_gid_type
+					   [id_priv->id.port_num -
+					    rdma_start_port(
+						    id_priv->cma_dev->device)];
+			cma_iboe_set_mgid((struct sockaddr *)&mc->addr, &mgid,
+					  gid_type);
+			cma_igmp_send(ndev, &mgid, false);
 		}
+		dev_put(ndev);
 
 		cancel_work_sync(&mc->iboe_join.work);
 	}
-- 
GitLab


From 75c610212b9f1756b9384911d3a2c347eee8031c Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Tue, 18 Jan 2022 09:35:01 +0200
Subject: [PATCH 3614/4878] RDMA/ucma: Protect mc during concurrent multicast
 leaves

commit 36e8169ec973359f671f9ec7213547059cae972e upstream.

Partially revert the commit mentioned in the Fixes line to make sure that
allocation and erasing multicast struct are locked.

  BUG: KASAN: use-after-free in ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]
  BUG: KASAN: use-after-free in ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579
  Read of size 8 at addr ffff88801bb74b00 by task syz-executor.1/25529
  CPU: 0 PID: 25529 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  Call Trace:
   __dump_stack lib/dump_stack.c:88 [inline]
   dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
   print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247
   __kasan_report mm/kasan/report.c:433 [inline]
   kasan_report.cold+0x83/0xdf mm/kasan/report.c:450
   ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline]
   ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579
   ucma_destroy_id+0x1e6/0x280 drivers/infiniband/core/ucma.c:614
   ucma_write+0x25c/0x350 drivers/infiniband/core/ucma.c:1732
   vfs_write+0x28e/0xae0 fs/read_write.c:588
   ksys_write+0x1ee/0x250 fs/read_write.c:643
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x44/0xae

Currently the xarray search can touch a concurrently freeing mc as the
xa_for_each() is not surrounded by any lock. Rather than hold the lock for
a full scan hold it only for the effected items, which is usually an empty
list.

Fixes: 95fe51096b7a ("RDMA/ucma: Remove mc_list and rely on xarray")
Link: https://lore.kernel.org/r/1cda5fabb1081e8d16e39a48d3a4f8160cea88b8.1642491047.git.leonro@nvidia.com
Reported-by: syzbot+e3f96c43d19782dd14a7@syzkaller.appspotmail.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/ucma.c | 34 +++++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 2cc785c1970b4..d12018c4c86e9 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -95,6 +95,7 @@ struct ucma_context {
 	u64			uid;
 
 	struct list_head	list;
+	struct list_head	mc_list;
 	struct work_struct	close_work;
 };
 
@@ -105,6 +106,7 @@ struct ucma_multicast {
 
 	u64			uid;
 	u8			join_state;
+	struct list_head	list;
 	struct sockaddr_storage	addr;
 };
 
@@ -198,6 +200,7 @@ static struct ucma_context *ucma_alloc_ctx(struct ucma_file *file)
 
 	INIT_WORK(&ctx->close_work, ucma_close_id);
 	init_completion(&ctx->comp);
+	INIT_LIST_HEAD(&ctx->mc_list);
 	/* So list_del() will work if we don't do ucma_finish_ctx() */
 	INIT_LIST_HEAD(&ctx->list);
 	ctx->file = file;
@@ -484,19 +487,19 @@ err1:
 
 static void ucma_cleanup_multicast(struct ucma_context *ctx)
 {
-	struct ucma_multicast *mc;
-	unsigned long index;
+	struct ucma_multicast *mc, *tmp;
 
-	xa_for_each(&multicast_table, index, mc) {
-		if (mc->ctx != ctx)
-			continue;
+	xa_lock(&multicast_table);
+	list_for_each_entry_safe(mc, tmp, &ctx->mc_list, list) {
+		list_del(&mc->list);
 		/*
 		 * At this point mc->ctx->ref is 0 so the mc cannot leave the
 		 * lock on the reader and this is enough serialization
 		 */
-		xa_erase(&multicast_table, index);
+		__xa_erase(&multicast_table, mc->id);
 		kfree(mc);
 	}
+	xa_unlock(&multicast_table);
 }
 
 static void ucma_cleanup_mc_events(struct ucma_multicast *mc)
@@ -1469,12 +1472,16 @@ static ssize_t ucma_process_join(struct ucma_file *file,
 	mc->uid = cmd->uid;
 	memcpy(&mc->addr, addr, cmd->addr_size);
 
-	if (xa_alloc(&multicast_table, &mc->id, NULL, xa_limit_32b,
+	xa_lock(&multicast_table);
+	if (__xa_alloc(&multicast_table, &mc->id, NULL, xa_limit_32b,
 		     GFP_KERNEL)) {
 		ret = -ENOMEM;
 		goto err_free_mc;
 	}
 
+	list_add_tail(&mc->list, &ctx->mc_list);
+	xa_unlock(&multicast_table);
+
 	mutex_lock(&ctx->mutex);
 	ret = rdma_join_multicast(ctx->cm_id, (struct sockaddr *)&mc->addr,
 				  join_state, mc);
@@ -1500,8 +1507,11 @@ err_leave_multicast:
 	mutex_unlock(&ctx->mutex);
 	ucma_cleanup_mc_events(mc);
 err_xa_erase:
-	xa_erase(&multicast_table, mc->id);
+	xa_lock(&multicast_table);
+	list_del(&mc->list);
+	__xa_erase(&multicast_table, mc->id);
 err_free_mc:
+	xa_unlock(&multicast_table);
 	kfree(mc);
 err_put_ctx:
 	ucma_put_ctx(ctx);
@@ -1569,15 +1579,17 @@ static ssize_t ucma_leave_multicast(struct ucma_file *file,
 		mc = ERR_PTR(-EINVAL);
 	else if (!refcount_inc_not_zero(&mc->ctx->ref))
 		mc = ERR_PTR(-ENXIO);
-	else
-		__xa_erase(&multicast_table, mc->id);
-	xa_unlock(&multicast_table);
 
 	if (IS_ERR(mc)) {
+		xa_unlock(&multicast_table);
 		ret = PTR_ERR(mc);
 		goto out;
 	}
 
+	list_del(&mc->list);
+	__xa_erase(&multicast_table, mc->id);
+	xa_unlock(&multicast_table);
+
 	mutex_lock(&mc->ctx->mutex);
 	rdma_leave_multicast(mc->ctx->cm_id, (struct sockaddr *) &mc->addr);
 	mutex_unlock(&mc->ctx->mutex);
-- 
GitLab


From c7db20f5be73b6b3768d15b075a09e4b0d5c13f7 Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Date: Wed, 19 Jan 2022 04:28:09 -0500
Subject: [PATCH 3615/4878] IB/rdmavt: Validate remote_addr during loopback
 atomic tests

commit 4028bccb003cf67e46632dee7f97ddc5d7b6e685 upstream.

The rdma-core test suite sends an unaligned remote address and expects a
failure.

ERROR: test_atomic_non_aligned_addr (tests.test_atomic.AtomicTest)

The qib/hfi1 rc handling validates properly, but the test has the client
and server on the same system.

The loopback of these operations is a distinct code path.

Fix by syntaxing the proposed remote address in the loopback code path.

Fixes: 15703461533a ("IB/{hfi1, qib, rdmavt}: Move ruc_loopback to rdmavt")
Link: https://lore.kernel.org/r/1642584489-141005-1-git-send-email-mike.marciniszyn@cornelisnetworks.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/sw/rdmavt/qp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index ee48befc89786..09f0dbf941c06 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -3124,6 +3124,8 @@ do_write:
 	case IB_WR_ATOMIC_FETCH_AND_ADD:
 		if (unlikely(!(qp->qp_access_flags & IB_ACCESS_REMOTE_ATOMIC)))
 			goto inv_err;
+		if (unlikely(wqe->atomic_wr.remote_addr & (sizeof(u64) - 1)))
+			goto inv_err;
 		if (unlikely(!rvt_rkey_ok(qp, &qp->r_sge.sge, sizeof(u64),
 					  wqe->atomic_wr.remote_addr,
 					  wqe->atomic_wr.rkey,
-- 
GitLab


From d3f8b927df2fcfc19f43137094d7defe704f3403 Mon Sep 17 00:00:00 2001
From: Bernard Metzler <bmt@zurich.ibm.com>
Date: Sun, 30 Jan 2022 18:08:15 +0100
Subject: [PATCH 3616/4878] RDMA/siw: Fix broken RDMA Read Fence/Resume logic.

commit b43a76f423aa304037603fd6165c4a534d2c09a7 upstream.

Code unconditionally resumed fenced SQ processing after next RDMA Read
completion, even if other RDMA Read responses are still outstanding, or
ORQ is full. Also adds comments for better readability of fence
processing, and removes orq_get_tail() helper, which is not needed
anymore.

Fixes: 8b6a361b8c48 ("rdma/siw: receive path")
Fixes: a531975279f3 ("rdma/siw: main include file")
Link: https://lore.kernel.org/r/20220130170815.1940-1-bmt@zurich.ibm.com
Reported-by: Jared Holzman <jared.holzman@excelero.com>
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/sw/siw/siw.h       |  7 +------
 drivers/infiniband/sw/siw/siw_qp_rx.c | 20 +++++++++++---------
 2 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h
index 368959ae9a8cc..df03d84c6868a 100644
--- a/drivers/infiniband/sw/siw/siw.h
+++ b/drivers/infiniband/sw/siw/siw.h
@@ -644,14 +644,9 @@ static inline struct siw_sqe *orq_get_current(struct siw_qp *qp)
 	return &qp->orq[qp->orq_get % qp->attrs.orq_size];
 }
 
-static inline struct siw_sqe *orq_get_tail(struct siw_qp *qp)
-{
-	return &qp->orq[qp->orq_put % qp->attrs.orq_size];
-}
-
 static inline struct siw_sqe *orq_get_free(struct siw_qp *qp)
 {
-	struct siw_sqe *orq_e = orq_get_tail(qp);
+	struct siw_sqe *orq_e = &qp->orq[qp->orq_put % qp->attrs.orq_size];
 
 	if (READ_ONCE(orq_e->flags) == 0)
 		return orq_e;
diff --git a/drivers/infiniband/sw/siw/siw_qp_rx.c b/drivers/infiniband/sw/siw/siw_qp_rx.c
index 60116f20653c7..875ea6f1b04a2 100644
--- a/drivers/infiniband/sw/siw/siw_qp_rx.c
+++ b/drivers/infiniband/sw/siw/siw_qp_rx.c
@@ -1153,11 +1153,12 @@ static int siw_check_tx_fence(struct siw_qp *qp)
 
 	spin_lock_irqsave(&qp->orq_lock, flags);
 
-	rreq = orq_get_current(qp);
-
 	/* free current orq entry */
+	rreq = orq_get_current(qp);
 	WRITE_ONCE(rreq->flags, 0);
 
+	qp->orq_get++;
+
 	if (qp->tx_ctx.orq_fence) {
 		if (unlikely(tx_waiting->wr_status != SIW_WR_QUEUED)) {
 			pr_warn("siw: [QP %u]: fence resume: bad status %d\n",
@@ -1165,10 +1166,12 @@ static int siw_check_tx_fence(struct siw_qp *qp)
 			rv = -EPROTO;
 			goto out;
 		}
-		/* resume SQ processing */
+		/* resume SQ processing, if possible */
 		if (tx_waiting->sqe.opcode == SIW_OP_READ ||
 		    tx_waiting->sqe.opcode == SIW_OP_READ_LOCAL_INV) {
-			rreq = orq_get_tail(qp);
+
+			/* SQ processing was stopped because of a full ORQ */
+			rreq = orq_get_free(qp);
 			if (unlikely(!rreq)) {
 				pr_warn("siw: [QP %u]: no ORQE\n", qp_id(qp));
 				rv = -EPROTO;
@@ -1181,15 +1184,14 @@ static int siw_check_tx_fence(struct siw_qp *qp)
 			resume_tx = 1;
 
 		} else if (siw_orq_empty(qp)) {
+			/*
+			 * SQ processing was stopped by fenced work request.
+			 * Resume since all previous Read's are now completed.
+			 */
 			qp->tx_ctx.orq_fence = 0;
 			resume_tx = 1;
-		} else {
-			pr_warn("siw: [QP %u]: fence resume: orq idx: %d:%d\n",
-				qp_id(qp), qp->orq_get, qp->orq_put);
-			rv = -EPROTO;
 		}
 	}
-	qp->orq_get++;
 out:
 	spin_unlock_irqrestore(&qp->orq_lock, flags);
 
-- 
GitLab


From b3958d315163d1f5e0c6c2bff2c02d06f03e853b Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Mon, 31 Jan 2022 11:45:26 +0200
Subject: [PATCH 3617/4878] RDMA/mlx4: Don't continue event handler after
 memory allocation failure
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f3136c4ce7acf64bee43135971ca52a880572e32 upstream.

The failure to allocate memory during MLX4_DEV_EVENT_PORT_MGMT_CHANGE
event handler will cause skip the assignment logic, but
ib_dispatch_event() will be called anyway.

Fix it by calling to return instead of break after memory allocation
failure.

Fixes: 00f5ce99dc6e ("mlx4: Use port management change event instead of smp_snoop")
Link: https://lore.kernel.org/r/12a0e83f18cfad4b5f62654f141e240d04915e10.1643622264.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/hw/mlx4/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 7b11aff8a5ea7..05c7200751e50 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -3273,7 +3273,7 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
 	case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
 		ew = kmalloc(sizeof *ew, GFP_ATOMIC);
 		if (!ew)
-			break;
+			return;
 
 		INIT_WORK(&ew->work, handle_port_mgmt_change_event);
 		memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
-- 
GitLab


From 9d9995b0371e4e8c18d4f955479e5d47efe7b2d4 Mon Sep 17 00:00:00 2001
From: Guoqing Jiang <guoqing.jiang@linux.dev>
Date: Fri, 28 Jan 2022 11:10:02 +0800
Subject: [PATCH 3618/4878] iommu/vt-d: Fix potential memory leak in
 intel_setup_irq_remapping()

commit 99e675d473eb8cf2deac1376a0f840222fc1adcf upstream.

After commit e3beca48a45b ("irqdomain/treewide: Keep firmware node
unconditionally allocated"). For tear down scenario, fn is only freed
after fail to allocate ir_domain, though it also should be freed in case
dmar_enable_qi returns error.

Besides free fn, irq_domain and ir_msi_domain need to be removed as well
if intel_setup_irq_remapping fails to enable queued invalidation.

Improve the rewinding path by add out_free_ir_domain and out_free_fwnode
lables per Baolu's suggestion.

Fixes: e3beca48a45b ("irqdomain/treewide: Keep firmware node unconditionally allocated")
Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20220119063640.16864-1-guoqing.jiang@linux.dev
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20220128031002.2219155-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/intel/irq_remapping.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c
index aedaae4630bc8..b853888774e65 100644
--- a/drivers/iommu/intel/irq_remapping.c
+++ b/drivers/iommu/intel/irq_remapping.c
@@ -576,9 +576,8 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
 					    fn, &intel_ir_domain_ops,
 					    iommu);
 	if (!iommu->ir_domain) {
-		irq_domain_free_fwnode(fn);
 		pr_err("IR%d: failed to allocate irqdomain\n", iommu->seq_id);
-		goto out_free_bitmap;
+		goto out_free_fwnode;
 	}
 	iommu->ir_msi_domain =
 		arch_create_remap_msi_irq_domain(iommu->ir_domain,
@@ -602,7 +601,7 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
 
 		if (dmar_enable_qi(iommu)) {
 			pr_err("Failed to enable queued invalidation\n");
-			goto out_free_bitmap;
+			goto out_free_ir_domain;
 		}
 	}
 
@@ -626,6 +625,14 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu)
 
 	return 0;
 
+out_free_ir_domain:
+	if (iommu->ir_msi_domain)
+		irq_domain_remove(iommu->ir_msi_domain);
+	iommu->ir_msi_domain = NULL;
+	irq_domain_remove(iommu->ir_domain);
+	iommu->ir_domain = NULL;
+out_free_fwnode:
+	irq_domain_free_fwnode(fn);
 out_free_bitmap:
 	bitmap_free(bitmap);
 out_free_pages:
-- 
GitLab


From 6d226e8afe88534e74df18e4f06fe425abb8e0dc Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Fri, 4 Feb 2022 12:55:37 +0100
Subject: [PATCH 3619/4878] iommu/amd: Fix loop timeout issue in
 iommu_ga_log_enable()

commit 9b45a7738eec52bf0f5d8d3d54e822962781c5f2 upstream.

The polling loop for the register change in iommu_ga_log_enable() needs
to have a udelay() in it.  Otherwise the CPU might be faster than the
IOMMU hardware and wrongly trigger the WARN_ON() further down the code
stream. Use a 10us for udelay(), has there is some hardware where
activation of the GA log can take more than a 100ms.

A future optimization should move the activation check of the GA log
to the point where it gets used for the first time. But that is a
bigger change and not suitable for a fix.

Fixes: 8bda0cfbdc1a ("iommu/amd: Detect and initialize guest vAPIC log")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20220204115537.3894-1-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/amd/init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 3f31a52f7044f..502e6532dd549 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -20,6 +20,7 @@
 #include <linux/export.h>
 #include <linux/kmemleak.h>
 #include <linux/mem_encrypt.h>
+#include <linux/iopoll.h>
 #include <asm/pci-direct.h>
 #include <asm/iommu.h>
 #include <asm/apic.h>
@@ -833,6 +834,7 @@ static int iommu_ga_log_enable(struct amd_iommu *iommu)
 		status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
 		if (status & (MMIO_STATUS_GALOG_RUN_MASK))
 			break;
+		udelay(10);
 	}
 
 	if (WARN_ON(i >= LOOP_TIMEOUT))
-- 
GitLab


From 30e05c98b99d138306e948afd0c7eaa7ce07f6dc Mon Sep 17 00:00:00 2001
From: Kamal Dasu <kdasu.kdev@gmail.com>
Date: Thu, 27 Jan 2022 13:53:59 -0500
Subject: [PATCH 3620/4878] spi: bcm-qspi: check for valid cs before applying
 chip select

commit 2cbd27267ffe020af1442b95ec57f59a157ba85c upstream.

Apply only valid chip select value. This change fixes case where chip
select is set to initial value of '-1' during probe and  PM supend and
subsequent resume can try to use the value with undefined behaviour.
Also in case where gpio based chip select, the check in
bcm_qspi_chip_select() shall prevent undefined behaviour on resume.

Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220127185359.27322-1-kdasu.kdev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/spi/spi-bcm-qspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 3c0ae6dbc43e2..4a80f043b7b17 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -551,7 +551,7 @@ static void bcm_qspi_chip_select(struct bcm_qspi *qspi, int cs)
 	u32 rd = 0;
 	u32 wr = 0;
 
-	if (qspi->base[CHIP_SELECT]) {
+	if (cs >= 0 && qspi->base[CHIP_SELECT]) {
 		rd = bcm_qspi_read(qspi, CHIP_SELECT, 0);
 		wr = (rd & ~0xff) | (1 << cs);
 		if (rd == wr)
-- 
GitLab


From c2cf65e1008ba50d1688b94a887dc1d10743f877 Mon Sep 17 00:00:00 2001
From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Date: Mon, 31 Jan 2022 15:17:08 +0100
Subject: [PATCH 3621/4878] spi: mediatek: Avoid NULL pointer crash in
 interrupt

commit f83a96e5f033fbbd21764705cb9c04234b96218e upstream.

In some case, like after a transfer timeout, master->cur_msg pointer
is NULL which led to a kernel crash when trying to use master->cur_msg->spi.
mtk_spi_can_dma(), pointed by master->can_dma, doesn't use this parameter
avoid the problem by setting NULL as second parameter.

Fixes: a568231f46322 ("spi: mediatek: Add spi bus for Mediatek MT8173")
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Link: https://lore.kernel.org/r/20220131141708.888710-1-benjamin.gaignard@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/spi/spi-mt65xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 83e56ee62649d..92a09dfb99a8e 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -540,7 +540,7 @@ static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id)
 	else
 		mdata->state = MTK_SPI_IDLE;
 
-	if (!master->can_dma(master, master->cur_msg->spi, trans)) {
+	if (!master->can_dma(master, NULL, trans)) {
 		if (trans->rx_buf) {
 			cnt = mdata->xfer_len / 4;
 			ioread32_rep(mdata->base + SPI_RX_DATA_REG,
-- 
GitLab


From ec942d08e0706c882ff8d7c5b724c6744cd3fea8 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Wed, 26 Jan 2022 11:04:47 +0000
Subject: [PATCH 3622/4878] spi: meson-spicc: add IRQ check in
 meson_spicc_probe

commit e937440f7fc444a3e3f1fb75ea65292d6f433a44 upstream.

This check misses checking for  platform_get_irq()'s call and may passes
the negative error codes to devm_request_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.
Stop calling devm_request_irq() with invalid IRQ #s.

Fixes: 454fa271bc4e ("spi: Add Meson SPICC driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220126110447.24549-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/spi/spi-meson-spicc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c
index c208efeadd184..0bc7daa7afc83 100644
--- a/drivers/spi/spi-meson-spicc.c
+++ b/drivers/spi/spi-meson-spicc.c
@@ -693,6 +693,11 @@ static int meson_spicc_probe(struct platform_device *pdev)
 	writel_relaxed(0, spicc->base + SPICC_INTREG);
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		ret = irq;
+		goto out_master;
+	}
+
 	ret = devm_request_irq(&pdev->dev, irq, meson_spicc_irq,
 			       0, NULL, spicc);
 	if (ret) {
-- 
GitLab


From e895e067d73e154b1ebc84a124e00831e311d9b0 Mon Sep 17 00:00:00 2001
From: Xin Xiong <xiongx18@fudan.edu.cn>
Date: Tue, 25 Jan 2022 18:12:15 +0800
Subject: [PATCH 3623/4878] spi: uniphier: fix reference count leak in
 uniphier_spi_probe()

commit 37c2c83ca4f1ef4b6908181ac98e18360af89b42 upstream.

The issue happens in several error paths in uniphier_spi_probe().
When either dma_get_slave_caps() or devm_spi_register_master() returns
an error code, the function forgets to decrease the refcount of both
`dma_rx` and `dma_tx` objects, which may lead to refcount leaks.

Fix it by decrementing the reference count of specific objects in
those error paths.

Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Fixes: 28d1dddc59f6 ("spi: uniphier: Add DMA transfer mode support")
Link: https://lore.kernel.org/r/20220125101214.35677-1-xiongx18@fudan.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/spi/spi-uniphier.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c
index e5c234aecf675..ad0088e394723 100644
--- a/drivers/spi/spi-uniphier.c
+++ b/drivers/spi/spi-uniphier.c
@@ -726,7 +726,7 @@ static int uniphier_spi_probe(struct platform_device *pdev)
 		if (ret) {
 			dev_err(&pdev->dev, "failed to get TX DMA capacities: %d\n",
 				ret);
-			goto out_disable_clk;
+			goto out_release_dma;
 		}
 		dma_tx_burst = caps.max_burst;
 	}
@@ -735,7 +735,7 @@ static int uniphier_spi_probe(struct platform_device *pdev)
 	if (IS_ERR_OR_NULL(master->dma_rx)) {
 		if (PTR_ERR(master->dma_rx) == -EPROBE_DEFER) {
 			ret = -EPROBE_DEFER;
-			goto out_disable_clk;
+			goto out_release_dma;
 		}
 		master->dma_rx = NULL;
 		dma_rx_burst = INT_MAX;
@@ -744,7 +744,7 @@ static int uniphier_spi_probe(struct platform_device *pdev)
 		if (ret) {
 			dev_err(&pdev->dev, "failed to get RX DMA capacities: %d\n",
 				ret);
-			goto out_disable_clk;
+			goto out_release_dma;
 		}
 		dma_rx_burst = caps.max_burst;
 	}
@@ -753,10 +753,20 @@ static int uniphier_spi_probe(struct platform_device *pdev)
 
 	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret)
-		goto out_disable_clk;
+		goto out_release_dma;
 
 	return 0;
 
+out_release_dma:
+	if (!IS_ERR_OR_NULL(master->dma_rx)) {
+		dma_release_channel(master->dma_rx);
+		master->dma_rx = NULL;
+	}
+	if (!IS_ERR_OR_NULL(master->dma_tx)) {
+		dma_release_channel(master->dma_tx);
+		master->dma_tx = NULL;
+	}
+
 out_disable_clk:
 	clk_disable_unprepare(priv->clk);
 
-- 
GitLab


From 75bbda318987975905ad159c0bf30a350f847f49 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 25 Jan 2022 13:14:21 +0100
Subject: [PATCH 3624/4878] net: ieee802154: hwsim: Ensure proper channel
 selection at probe time

commit 1293fccc9e892712d910ec96079d3717307f1d2d upstream.

Drivers are expected to set the PHY current_channel and current_page
according to their default state. The hwsim driver is advertising being
configured on channel 13 by default but that is not reflected in its own
internal pib structure. In order to ensure that this driver consider the
current channel as being 13 internally, we at least need to set the
pib->channel field to 13.

Fixes: f25da51fdc38 ("ieee802154: hwsim: add replacement for fakelb")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
[stefan@datenfreihafen.org: fixed assigment from page to channel]
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125121426.848337-2-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ieee802154/mac802154_hwsim.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c
index 080b15fc00601..97981cf7661ad 100644
--- a/drivers/net/ieee802154/mac802154_hwsim.c
+++ b/drivers/net/ieee802154/mac802154_hwsim.c
@@ -786,6 +786,7 @@ static int hwsim_add_one(struct genl_info *info, struct device *dev,
 		goto err_pib;
 	}
 
+	pib->channel = 13;
 	rcu_assign_pointer(phy->pib, pib);
 	phy->idx = idx;
 	INIT_LIST_HEAD(&phy->edges);
-- 
GitLab


From 0bfe50dc5d91f6ab445088ef25f2f0fb163fb631 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 25 Jan 2022 13:14:22 +0100
Subject: [PATCH 3625/4878] net: ieee802154: mcr20a: Fix lifs/sifs periods

commit d753c4004820a888ec007dd88b271fa9c3172c5c upstream.

These periods are expressed in time units (microseconds) while 40 and 12
are the number of symbol durations these periods will last. We need to
multiply them both with phy->symbol_duration in order to get these
values in microseconds.

Fixes: 8c6ad9cc5157 ("ieee802154: Add NXP MCR20A IEEE 802.15.4 transceiver driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125121426.848337-3-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ieee802154/mcr20a.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c
index 8dc04e2590b18..383231b854642 100644
--- a/drivers/net/ieee802154/mcr20a.c
+++ b/drivers/net/ieee802154/mcr20a.c
@@ -976,8 +976,8 @@ static void mcr20a_hw_setup(struct mcr20a_local *lp)
 	dev_dbg(printdev(lp), "%s\n", __func__);
 
 	phy->symbol_duration = 16;
-	phy->lifs_period = 40;
-	phy->sifs_period = 12;
+	phy->lifs_period = 40 * phy->symbol_duration;
+	phy->sifs_period = 12 * phy->symbol_duration;
 
 	hw->flags = IEEE802154_HW_TX_OMIT_CKSUM |
 			IEEE802154_HW_AFILT |
-- 
GitLab


From 78b3f20c17cbcb7645bfa63f2ca0e11b53c09d56 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 25 Jan 2022 13:14:24 +0100
Subject: [PATCH 3626/4878] net: ieee802154: ca8210: Stop leaking skb's

commit 621b24b09eb61c63f262da0c9c5f0e93348897e5 upstream.

Upon error the ieee802154_xmit_complete() helper is not called. Only
ieee802154_wake_queue() is called manually. We then leak the skb
structure.

Free the skb structure upon error before returning.

Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125121426.848337-5-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ieee802154/ca8210.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index 4eb64709d44cb..fea8b681f567c 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c
@@ -1771,6 +1771,7 @@ static int ca8210_async_xmit_complete(
 			status
 		);
 		if (status != MAC_TRANSACTION_OVERFLOW) {
+			dev_kfree_skb_any(priv->tx_skb);
 			ieee802154_wake_queue(priv->hw);
 			return 0;
 		}
-- 
GitLab


From 87b1c9fab6fe570182abcf7908e13a86478bc996 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 25 Jan 2022 13:14:25 +0100
Subject: [PATCH 3627/4878] net: ieee802154: Return meaningful error codes from
 the netlink helpers

commit 79c37ca73a6e9a33f7b2b7783ba6af07a448c8a9 upstream.

Returning -1 does not indicate anything useful.

Use a standard and meaningful error code instead.

Fixes: a26c5fd7622d ("nl802154: add support for security layer")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125121426.848337-6-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ieee802154/nl802154.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index b34e4f827e756..a493965f157f2 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -1441,7 +1441,7 @@ static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
 
 	hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
-		return -1;
+		return -ENOBUFS;
 
 	if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
 		goto nla_put_failure;
@@ -1634,7 +1634,7 @@ static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
 
 	hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
-		return -1;
+		return -ENOBUFS;
 
 	if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
 		goto nla_put_failure;
@@ -1812,7 +1812,7 @@ static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
 
 	hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
-		return -1;
+		return -ENOBUFS;
 
 	if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
 		goto nla_put_failure;
@@ -1988,7 +1988,7 @@ static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
 
 	hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
-		return -1;
+		return -ENOBUFS;
 
 	if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
 		goto nla_put_failure;
-- 
GitLab


From 2e7f5b6ee1a7a2c628253a95b0a95b582901ef1b Mon Sep 17 00:00:00 2001
From: Lior Nahmanson <liorna@nvidia.com>
Date: Sun, 30 Jan 2022 13:29:01 +0200
Subject: [PATCH 3628/4878] net: macsec: Fix offload support for
 NETDEV_UNREGISTER event

commit 9cef24c8b76c1f6effe499d2f131807c90f7ce9a upstream.

Current macsec netdev notify handler handles NETDEV_UNREGISTER event by
releasing relevant SW resources only, this causes resources leak in case
of macsec HW offload, as the underlay driver was not notified to clean
it's macsec offload resources.

Fix by calling the underlay driver to clean it's relevant resources
by moving offload handling from macsec_dellink() to macsec_common_dellink()
when handling NETDEV_UNREGISTER event.

Fixes: 3cf3227a21d1 ("net: macsec: hardware offloading infrastructure")
Signed-off-by: Lior Nahmanson <liorna@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/1643542141-28956-1-git-send-email-raeds@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/macsec.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index c601d3df27220..72af6e75ffd12 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -3869,6 +3869,18 @@ static void macsec_common_dellink(struct net_device *dev, struct list_head *head
 	struct macsec_dev *macsec = macsec_priv(dev);
 	struct net_device *real_dev = macsec->real_dev;
 
+	/* If h/w offloading is available, propagate to the device */
+	if (macsec_is_offloaded(macsec)) {
+		const struct macsec_ops *ops;
+		struct macsec_context ctx;
+
+		ops = macsec_get_ops(netdev_priv(dev), &ctx);
+		if (ops) {
+			ctx.secy = &macsec->secy;
+			macsec_offload(ops->mdo_del_secy, &ctx);
+		}
+	}
+
 	unregister_netdevice_queue(dev, head);
 	list_del_rcu(&macsec->secys);
 	macsec_del_dev(macsec);
@@ -3883,18 +3895,6 @@ static void macsec_dellink(struct net_device *dev, struct list_head *head)
 	struct net_device *real_dev = macsec->real_dev;
 	struct macsec_rxh_data *rxd = macsec_data_rtnl(real_dev);
 
-	/* If h/w offloading is available, propagate to the device */
-	if (macsec_is_offloaded(macsec)) {
-		const struct macsec_ops *ops;
-		struct macsec_context ctx;
-
-		ops = macsec_get_ops(netdev_priv(dev), &ctx);
-		if (ops) {
-			ctx.secy = &macsec->secy;
-			macsec_offload(ops->mdo_del_secy, &ctx);
-		}
-	}
-
 	macsec_common_dellink(dev, head);
 
 	if (list_empty(&rxd->secys)) {
-- 
GitLab


From 114bf9350413f00fe5ae1edb566593135c7c99c3 Mon Sep 17 00:00:00 2001
From: Lior Nahmanson <liorna@nvidia.com>
Date: Sun, 30 Jan 2022 13:37:52 +0200
Subject: [PATCH 3629/4878] net: macsec: Verify that send_sci is on when
 setting Tx sci explicitly

commit d0cfa548dbde354de986911d3913897b5448faad upstream.

When setting Tx sci explicit, the Rx side is expected to use this
sci and not recalculate it from the packet.However, in case of Tx sci
is explicit and send_sci is off, the receiver is wrongly recalculate
the sci from the source MAC address which most likely be different
than the explicit sci.

Fix by preventing such configuration when macsec newlink is established
and return EINVAL error code on such cases.

Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
Signed-off-by: Lior Nahmanson <liorna@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Raed Salem <raeds@nvidia.com>
Link: https://lore.kernel.org/r/1643542672-29403-1-git-send-email-raeds@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/macsec.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 72af6e75ffd12..789a124809e3c 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -4017,6 +4017,15 @@ static int macsec_newlink(struct net *net, struct net_device *dev,
 	    !macsec_check_offload(macsec->offload, macsec))
 		return -EOPNOTSUPP;
 
+	/* send_sci must be set to true when transmit sci explicitly is set */
+	if ((data && data[IFLA_MACSEC_SCI]) &&
+	    (data && data[IFLA_MACSEC_INC_SCI])) {
+		u8 send_sci = !!nla_get_u8(data[IFLA_MACSEC_INC_SCI]);
+
+		if (!send_sci)
+			return -EINVAL;
+	}
+
 	if (data && data[IFLA_MACSEC_ICV_LEN])
 		icv_len = nla_get_u8(data[IFLA_MACSEC_ICV_LEN]);
 	mtu = real_dev->mtu - icv_len - macsec_extra_len(true);
-- 
GitLab


From 41df2da2c1f396c6f049a205073845a48364e15a Mon Sep 17 00:00:00 2001
From: Camel Guo <camelg@axis.com>
Date: Mon, 31 Jan 2022 09:38:40 +0100
Subject: [PATCH 3630/4878] net: stmmac: dump gmac4 DMA registers correctly

commit 7af037c39b600bac2c716dd1228e8ddbe149573f upstream.

Unlike gmac100, gmac1000, gmac4 has 27 DMA registers and they are
located at DMA_CHAN_BASE_ADDR (0x1100). In order for ethtool to dump
gmac4 DMA registers correctly, this commit checks if a net_device has
gmac4 and uses different logic to dump its DMA registers.

This fixes the following KASAN warning, which can normally be triggered
by a command similar like "ethtool -d eth0":

BUG: KASAN: vmalloc-out-of-bounds in dwmac4_dump_dma_regs+0x6d4/0xb30
Write of size 4 at addr ffffffc010177100 by task ethtool/1839
 kasan_report+0x200/0x21c
 __asan_report_store4_noabort+0x34/0x60
 dwmac4_dump_dma_regs+0x6d4/0xb30
 stmmac_ethtool_gregs+0x110/0x204
 ethtool_get_regs+0x200/0x4b0
 dev_ethtool+0x1dac/0x3800
 dev_ioctl+0x7c0/0xb50
 sock_ioctl+0x298/0x6c4
 ...

Fixes: fbf68229ffe7 ("net: stmmac: unify registers dumps methods")
Signed-off-by: Camel Guo <camelg@axis.com>
Link: https://lore.kernel.org/r/20220131083841.3346801-1-camel.guo@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/stmicro/stmmac/dwmac_dma.h   |  1 +
 .../ethernet/stmicro/stmmac/stmmac_ethtool.c  | 19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
index e5dbd0bc257e7..82889c363c777 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
@@ -130,6 +130,7 @@
 
 #define NUM_DWMAC100_DMA_REGS	9
 #define NUM_DWMAC1000_DMA_REGS	23
+#define NUM_DWMAC4_DMA_REGS	27
 
 void dwmac_enable_dma_transmission(void __iomem *ioaddr);
 void dwmac_enable_dma_irq(void __iomem *ioaddr, u32 chan, bool rx, bool tx);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 9e54f953634b7..0c0f01f490057 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -21,10 +21,18 @@
 #include "dwxgmac2.h"
 
 #define REG_SPACE_SIZE	0x1060
+#define GMAC4_REG_SPACE_SIZE	0x116C
 #define MAC100_ETHTOOL_NAME	"st_mac100"
 #define GMAC_ETHTOOL_NAME	"st_gmac"
 #define XGMAC_ETHTOOL_NAME	"st_xgmac"
 
+/* Same as DMA_CHAN_BASE_ADDR defined in dwmac4_dma.h
+ *
+ * It is here because dwmac_dma.h and dwmac4_dam.h can not be included at the
+ * same time due to the conflicting macro names.
+ */
+#define GMAC4_DMA_CHAN_BASE_ADDR  0x00001100
+
 #define ETHTOOL_DMA_OFFSET	55
 
 struct stmmac_stats {
@@ -413,6 +421,8 @@ static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 
 	if (priv->plat->has_xgmac)
 		return XGMAC_REGSIZE * 4;
+	else if (priv->plat->has_gmac4)
+		return GMAC4_REG_SPACE_SIZE;
 	return REG_SPACE_SIZE;
 }
 
@@ -425,8 +435,13 @@ static void stmmac_ethtool_gregs(struct net_device *dev,
 	stmmac_dump_mac_regs(priv, priv->hw, reg_space);
 	stmmac_dump_dma_regs(priv, priv->ioaddr, reg_space);
 
-	if (!priv->plat->has_xgmac) {
-		/* Copy DMA registers to where ethtool expects them */
+	/* Copy DMA registers to where ethtool expects them */
+	if (priv->plat->has_gmac4) {
+		/* GMAC4 dumps its DMA registers at its DMA_CHAN_BASE_ADDR */
+		memcpy(&reg_space[ETHTOOL_DMA_OFFSET],
+		       &reg_space[GMAC4_DMA_CHAN_BASE_ADDR / 4],
+		       NUM_DWMAC4_DMA_REGS * 4);
+	} else if (!priv->plat->has_xgmac) {
 		memcpy(&reg_space[ETHTOOL_DMA_OFFSET],
 		       &reg_space[DMA_BUS_MODE / 4],
 		       NUM_DWMAC1000_DMA_REGS * 4);
-- 
GitLab


From 9ea01853611114567a0207b774eb76bfeed74878 Mon Sep 17 00:00:00 2001
From: Yannick Vignon <yannick.vignon@nxp.com>
Date: Thu, 3 Feb 2022 17:00:25 +0100
Subject: [PATCH 3631/4878] net: stmmac: ensure PTP time register reads are
 consistent

commit 80d4609008e6d696a279e39ae7458c916fcd44c1 upstream.

Even if protected from preemption and interrupts, a small time window
remains when the 2 register reads could return inconsistent values,
each time the "seconds" register changes. This could lead to an about
1-second error in the reported time.

Add logic to ensure the "seconds" and "nanoseconds" values are consistent.

Fixes: 92ba6888510c ("stmmac: add the support for PTP hw clock driver")
Signed-off-by: Yannick Vignon <yannick.vignon@nxp.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20220203160025.750632-1-yannick.vignon@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../ethernet/stmicro/stmmac/stmmac_hwtstamp.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
index d291612eeafb9..07b1b8374cd26 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
@@ -142,15 +142,20 @@ static int adjust_systime(void __iomem *ioaddr, u32 sec, u32 nsec,
 
 static void get_systime(void __iomem *ioaddr, u64 *systime)
 {
-	u64 ns;
-
-	/* Get the TSSS value */
-	ns = readl(ioaddr + PTP_STNSR);
-	/* Get the TSS and convert sec time value to nanosecond */
-	ns += readl(ioaddr + PTP_STSR) * 1000000000ULL;
+	u64 ns, sec0, sec1;
+
+	/* Get the TSS value */
+	sec1 = readl_relaxed(ioaddr + PTP_STSR);
+	do {
+		sec0 = sec1;
+		/* Get the TSSS value */
+		ns = readl_relaxed(ioaddr + PTP_STNSR);
+		/* Get the TSS value */
+		sec1 = readl_relaxed(ioaddr + PTP_STSR);
+	} while (sec0 != sec1);
 
 	if (systime)
-		*systime = ns;
+		*systime = ns + (sec1 * 1000000000ULL);
 }
 
 const struct stmmac_hwtimestamp stmmac_ptp = {
-- 
GitLab


From 3e698375517d0684224b7d4fa5df682efb84613b Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 24 Jan 2022 15:24:09 +0300
Subject: [PATCH 3632/4878] drm/i915/overlay: Prevent divide by zero bugs in
 scaling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 90a3d22ff02b196d5884e111f39271a1d4ee8e3e upstream.

Smatch detected a divide by zero bug in check_overlay_scaling().

    drivers/gpu/drm/i915/display/intel_overlay.c:976 check_overlay_scaling()
    error: potential divide by zero bug '/ rec->dst_height'.
    drivers/gpu/drm/i915/display/intel_overlay.c:980 check_overlay_scaling()
    error: potential divide by zero bug '/ rec->dst_width'.

Prevent this by ensuring that the dst height and width are non-zero.

Fixes: 02e792fbaadb ("drm/i915: implement drmmode overlay support v4")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220124122409.GA31673@kili
(cherry picked from commit cf5b64f7f10b28bebb9b7c9d25e7aee5cbe43918)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/display/intel_overlay.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c
index 0e60aec0bb191..b561e9e00153e 100644
--- a/drivers/gpu/drm/i915/display/intel_overlay.c
+++ b/drivers/gpu/drm/i915/display/intel_overlay.c
@@ -932,6 +932,9 @@ static int check_overlay_dst(struct intel_overlay *overlay,
 	const struct intel_crtc_state *pipe_config =
 		overlay->crtc->config;
 
+	if (rec->dst_height == 0 || rec->dst_width == 0)
+		return -EINVAL;
+
 	if (rec->dst_x < pipe_config->pipe_src_w &&
 	    rec->dst_x + rec->dst_width <= pipe_config->pipe_src_w &&
 	    rec->dst_y < pipe_config->pipe_src_h &&
-- 
GitLab


From 56e0747d59accbd4785680b140bdc4130bec1217 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 27 Jan 2022 13:13:34 +0000
Subject: [PATCH 3633/4878] ASoC: fsl: Add missing error handling in
 pcm030_fabric_probe

commit fb25621da5702c104ce0a48de5b174ced09e5b4e upstream.

Add the missing platform_device_put() and platform_device_del()
before return from pcm030_fabric_probe in the error handling case.

Fixes: c912fa913446 ("ASoC: fsl: register the wm9712-codec")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220127131336.30214-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/fsl/pcm030-audio-fabric.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c
index af3c3b90c0aca..83b4a22bf15ac 100644
--- a/sound/soc/fsl/pcm030-audio-fabric.c
+++ b/sound/soc/fsl/pcm030-audio-fabric.c
@@ -93,16 +93,21 @@ static int pcm030_fabric_probe(struct platform_device *op)
 		dev_err(&op->dev, "platform_device_alloc() failed\n");
 
 	ret = platform_device_add(pdata->codec_device);
-	if (ret)
+	if (ret) {
 		dev_err(&op->dev, "platform_device_add() failed: %d\n", ret);
+		platform_device_put(pdata->codec_device);
+	}
 
 	ret = snd_soc_register_card(card);
-	if (ret)
+	if (ret) {
 		dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret);
+		platform_device_del(pdata->codec_device);
+		platform_device_put(pdata->codec_device);
+	}
 
 	platform_set_drvdata(op, pdata);
-
 	return ret;
+
 }
 
 static int pcm030_fabric_remove(struct platform_device *op)
-- 
GitLab


From cb5f1fbd1f2233fc3f7c27fbb04e3f283f46f7b9 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Fri, 7 Jan 2022 15:47:06 -0600
Subject: [PATCH 3634/4878] ASoC: xilinx: xlnx_formatter_pcm: Make buffer bytes
 multiple of period bytes

commit e958b5884725dac86d36c1e7afe5a55f31feb0b2 upstream.

This patch is based on one in the Xilinx kernel tree, "ASoc: xlnx: Make
buffer bytes multiple of period bytes" by Devarsh Thakkar. The same
issue exists in the mainline version of the driver. The original
patch description is as follows:

"The Xilinx Audio Formatter IP has a constraint on period
bytes to be multiple of 64. This leads to driver changing
the period size to suitable frames such that period bytes
are multiple of 64.

Now since period bytes and period size are updated but not
the buffer bytes, this may make the buffer bytes unaligned
and not multiple of period bytes.

When this happens we hear popping noise as while DMA is being
done the buffer bytes are not enough to complete DMA access
for last period of frame within the application buffer boundary.

To avoid this, align buffer bytes too as multiple of 64, and
set another constraint to always enforce number of periods as
integer. Now since, there is already a rule in alsa core
to enforce Buffer size = Number of Periods * Period Size
this automatically aligns buffer bytes as multiple of period
bytes."

Fixes: 6f6c3c36f091 ("ASoC: xlnx: add pcm formatter platform driver")
Cc: Devarsh Thakkar <devarsh.thakkar@xilinx.com>
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Link: https://lore.kernel.org/r/20220107214711.1100162-2-robert.hancock@calian.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/xilinx/xlnx_formatter_pcm.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/sound/soc/xilinx/xlnx_formatter_pcm.c b/sound/soc/xilinx/xlnx_formatter_pcm.c
index 91afea9d5de67..ce19a6058b279 100644
--- a/sound/soc/xilinx/xlnx_formatter_pcm.c
+++ b/sound/soc/xilinx/xlnx_formatter_pcm.c
@@ -37,6 +37,7 @@
 #define XLNX_AUD_XFER_COUNT	0x28
 #define XLNX_AUD_CH_STS_START	0x2C
 #define XLNX_BYTES_PER_CH	0x44
+#define XLNX_AUD_ALIGN_BYTES	64
 
 #define AUD_STS_IOC_IRQ_MASK	BIT(31)
 #define AUD_STS_CH_STS_MASK	BIT(29)
@@ -368,12 +369,32 @@ static int xlnx_formatter_pcm_open(struct snd_soc_component *component,
 	snd_soc_set_runtime_hwparams(substream, &xlnx_pcm_hardware);
 	runtime->private_data = stream_data;
 
-	/* Resize the period size divisible by 64 */
+	/* Resize the period bytes as divisible by 64 */
 	err = snd_pcm_hw_constraint_step(runtime, 0,
-					 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
+					 SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
+					 XLNX_AUD_ALIGN_BYTES);
 	if (err) {
 		dev_err(component->dev,
-			"unable to set constraint on period bytes\n");
+			"Unable to set constraint on period bytes\n");
+		return err;
+	}
+
+	/* Resize the buffer bytes as divisible by 64 */
+	err = snd_pcm_hw_constraint_step(runtime, 0,
+					 SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+					 XLNX_AUD_ALIGN_BYTES);
+	if (err) {
+		dev_err(component->dev,
+			"Unable to set constraint on buffer bytes\n");
+		return err;
+	}
+
+	/* Set periods as integer multiple */
+	err = snd_pcm_hw_constraint_integer(runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (err < 0) {
+		dev_err(component->dev,
+			"Unable to set constraint on periods to be integer\n");
 		return err;
 	}
 
-- 
GitLab


From 02f4597198329076f4f02f27906447a90357ae66 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 11 Jan 2022 10:50:48 +0800
Subject: [PATCH 3635/4878] ASoC: cpcap: Check for NULL pointer after calling
 of_get_child_by_name

commit f7a6021aaf02088870559f82fc13c58cda7fea1a upstream.

If the device does not exist, of_get_child_by_name() will return NULL
pointer.
And devm_snd_soc_register_component() does not check it.
Also, I have noticed that cpcap_codec_driver has not been used yet.
Therefore, it should be better to check it in order to avoid the future
dereference of the NULL pointer.

Fixes: f6cdf2d3445d ("ASoC: cpcap: new codec")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220111025048.524134-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/cpcap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/cpcap.c b/sound/soc/codecs/cpcap.c
index c0425e3707d9c..a3597137fee3e 100644
--- a/sound/soc/codecs/cpcap.c
+++ b/sound/soc/codecs/cpcap.c
@@ -1544,6 +1544,8 @@ static int cpcap_codec_probe(struct platform_device *pdev)
 {
 	struct device_node *codec_node =
 		of_get_child_by_name(pdev->dev.parent->of_node, "audio-codec");
+	if (!codec_node)
+		return -ENODEV;
 
 	pdev->dev.of_node = codec_node;
 
-- 
GitLab


From 5a45448ac95b715173edb1cd090ff24b6586d921 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 19 Jan 2022 15:31:01 +0300
Subject: [PATCH 3636/4878] ASoC: max9759: fix underflow in
 speaker_gain_control_put()

commit 4c907bcd9dcd233da6707059d777ab389dcbd964 upstream.

Check for negative values of "priv->gain" to prevent an out of bounds
access.  The concern is that these might come from the user via:
  -> snd_ctl_elem_write_user()
    -> snd_ctl_elem_write()
      -> kctl->put()

Fixes: fa8d915172b8 ("ASoC: max9759: Add Amplifier Driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220119123101.GA9509@kili
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/max9759.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max9759.c b/sound/soc/codecs/max9759.c
index 00e9d4fd1651f..0c261335c8a16 100644
--- a/sound/soc/codecs/max9759.c
+++ b/sound/soc/codecs/max9759.c
@@ -64,7 +64,8 @@ static int speaker_gain_control_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);
 	struct max9759 *priv = snd_soc_component_get_drvdata(c);
 
-	if (ucontrol->value.integer.value[0] > 3)
+	if (ucontrol->value.integer.value[0] < 0 ||
+	    ucontrol->value.integer.value[0] > 3)
 		return -EINVAL;
 
 	priv->gain = ucontrol->value.integer.value[0];
-- 
GitLab


From 14bc9978b486d0780f1d1d834202c899da68c47d Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 19 Jan 2022 20:19:15 +0200
Subject: [PATCH 3637/4878] pinctrl: intel: Fix a glitch when updating IRQ
 flags on a preconfigured line

commit e12963c453263d5321a2c610e98cbc731233b685 upstream.

The commit af7e3eeb84e2 ("pinctrl: intel: Disable input and output buffer
when switching to GPIO") hadn't taken into account an update of the IRQ
flags scenario.

When updating the IRQ flags on the preconfigured line the ->irq_set_type()
is called again. In such case the sequential Rx buffer configuration
changes may trigger a falling or rising edge interrupt that may lead,
on some platforms, to an undesired event.

This may happen because each of intel_gpio_set_gpio_mode() and
__intel_gpio_set_direction() updates the pad configuration with a different
value of the GPIORXDIS bit. Notable, that the intel_gpio_set_gpio_mode() is
called only for the pads that are configured as an input. Due to this fact,
integrate the logic of __intel_gpio_set_direction() call into the
intel_gpio_set_gpio_mode() so that the Rx buffer won't be disabled and
immediately re-enabled.

Fixes: af7e3eeb84e2 ("pinctrl: intel: Disable input and output buffer when switching to GPIO")
Reported-by: Kane Chen <kane.chen@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Grace Kao <grace.kao@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index b6ef1911c1dd1..7f7214d3157cb 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -441,8 +441,8 @@ static void intel_gpio_set_gpio_mode(void __iomem *padcfg0)
 	value &= ~PADCFG0_PMODE_MASK;
 	value |= PADCFG0_PMODE_GPIO;
 
-	/* Disable input and output buffers */
-	value |= PADCFG0_GPIORXDIS;
+	/* Disable TX buffer and enable RX (this will be input) */
+	value &= ~PADCFG0_GPIORXDIS;
 	value |= PADCFG0_GPIOTXDIS;
 
 	/* Disable SCI/SMI/NMI generation */
@@ -487,9 +487,6 @@ static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
 
 	intel_gpio_set_gpio_mode(padcfg0);
 
-	/* Disable TX buffer and enable RX (this will be input) */
-	__intel_gpio_set_direction(padcfg0, true);
-
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
 
 	return 0;
@@ -1105,9 +1102,6 @@ static int intel_gpio_irq_type(struct irq_data *d, unsigned int type)
 
 	intel_gpio_set_gpio_mode(reg);
 
-	/* Disable TX buffer and enable RX (this will be input) */
-	__intel_gpio_set_direction(reg, true);
-
 	value = readl(reg);
 
 	value &= ~(PADCFG0_RXEVCFG_MASK | PADCFG0_RXINV);
-- 
GitLab


From 752d9eafc64e7a1f8a62f6b3fad2086ba8c73058 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Bartosik?= <lb@semihalf.com>
Date: Mon, 24 Jan 2022 13:55:29 +0100
Subject: [PATCH 3638/4878] pinctrl: intel: fix unexpected interrupt
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit e986f0e602f19ecb7880b04dd1db415ed9bca3f6 upstream.

ASUS Chromebook C223 with Celeron N3350 crashes sometimes during
cold booot. Inspection of the kernel log showed that it gets into
an inifite loop logging the following message:

->handle_irq():  000000009cdb51e8, handle_bad_irq+0x0/0x251
->irq_data.chip(): 000000005ec212a7, 0xffffa043009d8e7
->action(): 00000
   IRQ_NOPROBE set
unexpected IRQ trap at vector 7c

The issue happens during cold boot but only if cold boot happens
at most several dozen seconds after Chromebook is powered off. For
longer intervals between power off and power on (cold boot) the issue
does not reproduce. The unexpected interrupt is sourced from INT3452
GPIO pin which is used for SD card detect. Investigation relevealed
that when the interval between power off and power on (cold boot)
is less than several dozen seconds then values of INT3452 GPIO interrupt
enable and interrupt pending registers survive power off and power
on sequence and interrupt for SD card detect pin is enabled and pending
during probe of SD controller which causes the unexpected IRQ message.
"Intel Pentium and Celeron Processor N- and J- Series" volume 3 doc
mentions that GPIO interrupt enable and status registers default
value is 0x0.
The fix clears INT3452 GPIO interrupt enabled and interrupt pending
registers in its probe function.

Fixes: 7981c0015af2 ("pinctrl: intel: Add Intel Sunrisepoint pin controller and GPIO support")
Signed-off-by: Łukasz Bartosik <lb@semihalf.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/intel/pinctrl-intel.c | 54 +++++++++++++++++----------
 1 file changed, 34 insertions(+), 20 deletions(-)

diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 7f7214d3157cb..348c670a7b07d 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -1201,6 +1201,39 @@ static irqreturn_t intel_gpio_irq(int irq, void *data)
 	return IRQ_RETVAL(ret);
 }
 
+static void intel_gpio_irq_init(struct intel_pinctrl *pctrl)
+{
+	int i;
+
+	for (i = 0; i < pctrl->ncommunities; i++) {
+		const struct intel_community *community;
+		void __iomem *base;
+		unsigned int gpp;
+
+		community = &pctrl->communities[i];
+		base = community->regs;
+
+		for (gpp = 0; gpp < community->ngpps; gpp++) {
+			/* Mask and clear all interrupts */
+			writel(0, base + community->ie_offset + gpp * 4);
+			writel(0xffff, base + community->is_offset + gpp * 4);
+		}
+	}
+}
+
+static int intel_gpio_irq_init_hw(struct gpio_chip *gc)
+{
+	struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
+
+	/*
+	 * Make sure the interrupt lines are in a proper state before
+	 * further configuration.
+	 */
+	intel_gpio_irq_init(pctrl);
+
+	return 0;
+}
+
 static int intel_gpio_add_community_ranges(struct intel_pinctrl *pctrl,
 				const struct intel_community *community)
 {
@@ -1305,6 +1338,7 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
 	girq->num_parents = 0;
 	girq->default_type = IRQ_TYPE_NONE;
 	girq->handler = handle_bad_irq;
+	girq->init_hw = intel_gpio_irq_init_hw;
 
 	ret = devm_gpiochip_add_data(pctrl->dev, &pctrl->chip, pctrl);
 	if (ret) {
@@ -1634,26 +1668,6 @@ int intel_pinctrl_suspend_noirq(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(intel_pinctrl_suspend_noirq);
 
-static void intel_gpio_irq_init(struct intel_pinctrl *pctrl)
-{
-	size_t i;
-
-	for (i = 0; i < pctrl->ncommunities; i++) {
-		const struct intel_community *community;
-		void __iomem *base;
-		unsigned int gpp;
-
-		community = &pctrl->communities[i];
-		base = community->regs;
-
-		for (gpp = 0; gpp < community->ngpps; gpp++) {
-			/* Mask and clear all interrupts */
-			writel(0, base + community->ie_offset + gpp * 4);
-			writel(0xffff, base + community->is_offset + gpp * 4);
-		}
-	}
-}
-
 static bool intel_gpio_update_reg(void __iomem *reg, u32 mask, u32 value)
 {
 	u32 curr, updated;
-- 
GitLab


From fd482f2d63dbc9f2fe179de2de9202021ed7e6fe Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 27 Jan 2022 13:50:31 -0800
Subject: [PATCH 3639/4878] pinctrl: bcm2835: Fix a few error paths

commit 5297c693d8c8e08fa742e3112cf70723f7a04da2 upstream.

After commit 266423e60ea1 ("pinctrl: bcm2835: Change init order for gpio
hogs") a few error paths would not unwind properly the registration of
gpio ranges. Correct that by assigning a single error label and goto it
whenever we encounter a fatal error.

Fixes: 266423e60ea1 ("pinctrl: bcm2835: Change init order for gpio hogs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220127215033.267227-1-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/bcm/pinctrl-bcm2835.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 40ce18a0d0190..6768b2f03d685 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -1264,16 +1264,18 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 				     sizeof(*girq->parents),
 				     GFP_KERNEL);
 	if (!girq->parents) {
-		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto out_remove;
 	}
 
 	if (is_7211) {
 		pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS,
 					    sizeof(*pc->wake_irq),
 					    GFP_KERNEL);
-		if (!pc->wake_irq)
-			return -ENOMEM;
+		if (!pc->wake_irq) {
+			err = -ENOMEM;
+			goto out_remove;
+		}
 	}
 
 	/*
@@ -1297,8 +1299,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 
 		len = strlen(dev_name(pc->dev)) + 16;
 		name = devm_kzalloc(pc->dev, len, GFP_KERNEL);
-		if (!name)
-			return -ENOMEM;
+		if (!name) {
+			err = -ENOMEM;
+			goto out_remove;
+		}
 
 		snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i);
 
@@ -1317,11 +1321,14 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 	err = gpiochip_add_data(&pc->gpio_chip, pc);
 	if (err) {
 		dev_err(dev, "could not add GPIO chip\n");
-		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
-		return err;
+		goto out_remove;
 	}
 
 	return 0;
+
+out_remove:
+	pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
+	return err;
 }
 
 static struct platform_driver bcm2835_pinctrl_driver = {
-- 
GitLab


From ec4334152dae175dbd8fd5bde1d2139bbe7b42d0 Mon Sep 17 00:00:00 2001
From: John Meneghini <jmeneghi@redhat.com>
Date: Mon, 24 Jan 2022 09:51:10 -0500
Subject: [PATCH 3640/4878] scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe

commit 936bd03405fc83ba039d42bc93ffd4b88418f1d3 upstream.

Running tests with a debug kernel shows that bnx2fc_recv_frame() is
modifying the per_cpu lport stats counters in a non-mpsafe way.  Just boot
a debug kernel and run the bnx2fc driver with the hardware enabled.

[ 1391.699147] BUG: using smp_processor_id() in preemptible [00000000] code: bnx2fc_
[ 1391.699160] caller is bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc]
[ 1391.699174] CPU: 2 PID: 4355 Comm: bnx2fc_l2_threa Kdump: loaded Tainted: G    B
[ 1391.699180] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013
[ 1391.699183] Call Trace:
[ 1391.699188]  dump_stack_lvl+0x57/0x7d
[ 1391.699198]  check_preemption_disabled+0xc8/0xd0
[ 1391.699205]  bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc]
[ 1391.699215]  ? do_raw_spin_trylock+0xb5/0x180
[ 1391.699221]  ? bnx2fc_npiv_create_vports.isra.0+0x4e0/0x4e0 [bnx2fc]
[ 1391.699229]  ? bnx2fc_l2_rcv_thread+0xb7/0x3a0 [bnx2fc]
[ 1391.699240]  bnx2fc_l2_rcv_thread+0x1af/0x3a0 [bnx2fc]
[ 1391.699250]  ? bnx2fc_ulp_init+0xc0/0xc0 [bnx2fc]
[ 1391.699258]  kthread+0x364/0x420
[ 1391.699263]  ? _raw_spin_unlock_irq+0x24/0x50
[ 1391.699268]  ? set_kthread_struct+0x100/0x100
[ 1391.699273]  ret_from_fork+0x22/0x30

Restore the old get_cpu/put_cpu code with some modifications to reduce the
size of the critical section.

Link: https://lore.kernel.org/r/20220124145110.442335-1-jmeneghi@redhat.com
Fixes: d576a5e80cd0 ("bnx2fc: Improve stats update mechanism")
Tested-by: Guangwu Zhang <guazhang@redhat.com>
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 052e7879704a5..8f47bf83694f6 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -506,7 +506,8 @@ static int bnx2fc_l2_rcv_thread(void *arg)
 
 static void bnx2fc_recv_frame(struct sk_buff *skb)
 {
-	u32 fr_len;
+	u64 crc_err;
+	u32 fr_len, fr_crc;
 	struct fc_lport *lport;
 	struct fcoe_rcv_info *fr;
 	struct fc_stats *stats;
@@ -540,6 +541,11 @@ static void bnx2fc_recv_frame(struct sk_buff *skb)
 	skb_pull(skb, sizeof(struct fcoe_hdr));
 	fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 
+	stats = per_cpu_ptr(lport->stats, get_cpu());
+	stats->RxFrames++;
+	stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+	put_cpu();
+
 	fp = (struct fc_frame *)skb;
 	fc_frame_init(fp);
 	fr_dev(fp) = lport;
@@ -622,16 +628,15 @@ static void bnx2fc_recv_frame(struct sk_buff *skb)
 		return;
 	}
 
-	stats = per_cpu_ptr(lport->stats, smp_processor_id());
-	stats->RxFrames++;
-	stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+	fr_crc = le32_to_cpu(fr_crc(fp));
 
-	if (le32_to_cpu(fr_crc(fp)) !=
-			~crc32(~0, skb->data, fr_len)) {
-		if (stats->InvalidCRCCount < 5)
+	if (unlikely(fr_crc != ~crc32(~0, skb->data, fr_len))) {
+		stats = per_cpu_ptr(lport->stats, get_cpu());
+		crc_err = (stats->InvalidCRCCount++);
+		put_cpu();
+		if (crc_err < 5)
 			printk(KERN_WARNING PFX "dropping frame with "
 			       "CRC error\n");
-		stats->InvalidCRCCount++;
 		kfree_skb(skb);
 		return;
 	}
-- 
GitLab


From 51e88e8922734ea137dbeeeab87d27fe8dccfcc5 Mon Sep 17 00:00:00 2001
From: Dai Ngo <dai.ngo@oracle.com>
Date: Wed, 26 Jan 2022 13:13:38 -0800
Subject: [PATCH 3641/4878] nfsd: nfsd4_setclientid_confirm mistakenly expires
 confirmed client.

commit ab451ea952fe9d7afefae55ddb28943a148247fe upstream.

From RFC 7530 Section 16.34.5:

o  The server has not recorded an unconfirmed { v, x, c, *, * } and
   has recorded a confirmed { v, x, c, *, s }.  If the principals of
   the record and of SETCLIENTID_CONFIRM do not match, the server
   returns NFS4ERR_CLID_INUSE without removing any relevant leased
   client state, and without changing recorded callback and
   callback_ident values for client { x }.

The current code intends to do what the spec describes above but
it forgot to set 'old' to NULL resulting to the confirmed client
to be expired.

Fixes: 2b63482185e6 ("nfsd: fix clid_inuse on mount with security change")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs4state.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 210147960c52e..d01d7929753ef 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4047,8 +4047,10 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
 			status = nfserr_clid_inuse;
 			if (client_has_state(old)
 					&& !same_creds(&unconf->cl_cred,
-							&old->cl_cred))
+							&old->cl_cred)) {
+				old = NULL;
 				goto out;
+			}
 			status = mark_client_expired_locked(old);
 			if (status) {
 				old = NULL;
-- 
GitLab


From f744a064041cc1d84e1ad9d6a8e571f371850648 Mon Sep 17 00:00:00 2001
From: Haiyue Wang <haiyue.wang@intel.com>
Date: Fri, 28 Jan 2022 18:47:14 +0800
Subject: [PATCH 3642/4878] gve: fix the wrong AdminQ buffer queue index check

commit 1f84a9450d75e08af70d9e2f2d5e1c0ac0c881d2 upstream.

The 'tail' and 'head' are 'unsigned int' type free-running count, when
'head' is overflow, the 'int i (= tail) < u32 head' will be false:

Only '- loop 0: idx = 63' result is shown, so it needs to use 'int' type
to compare, it can handle the overflow correctly.

typedef uint32_t u32;

int main()
{
        u32 tail, head;
        int stail, shead;
        int i, loop;

        tail = 0xffffffff;
        head = 0x00000000;

        for (i = tail, loop = 0; i < head; i++) {
                unsigned int idx = i & 63;

                printf("+ loop %d: idx = %u\n", loop++, idx);
        }

        stail = tail;
        shead = head;
        for (i = stail, loop = 0; i < shead; i++) {
                unsigned int idx = i & 63;

                printf("- loop %d: idx = %u\n", loop++, idx);
        }

        return 0;
}

Fixes: 5cdad90de62c ("gve: Batch AQ commands for creating and destroying queues.")
Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/google/gve/gve_adminq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c
index 6009d76e41fc4..67f2b9a61463a 100644
--- a/drivers/net/ethernet/google/gve/gve_adminq.c
+++ b/drivers/net/ethernet/google/gve/gve_adminq.c
@@ -141,7 +141,7 @@ static int gve_adminq_parse_err(struct gve_priv *priv, u32 status)
  */
 static int gve_adminq_kick_and_wait(struct gve_priv *priv)
 {
-	u32 tail, head;
+	int tail, head;
 	int i;
 
 	tail = ioread32be(&priv->reg_bar0->adminq_event_counter);
-- 
GitLab


From 6304a613a97d6dcd49b93fbad31e9f39d1e138d6 Mon Sep 17 00:00:00 2001
From: Hou Tao <hotforest@gmail.com>
Date: Wed, 2 Feb 2022 14:01:58 +0800
Subject: [PATCH 3643/4878] bpf: Use VM_MAP instead of VM_ALLOC for ringbuf

commit b293dcc473d22a62dc6d78de2b15e4f49515db56 upstream.

After commit 2fd3fb0be1d1 ("kasan, vmalloc: unpoison VM_ALLOC pages
after mapping"), non-VM_ALLOC mappings will be marked as accessible
in __get_vm_area_node() when KASAN is enabled. But now the flag for
ringbuf area is VM_ALLOC, so KASAN will complain out-of-bound access
after vmap() returns. Because the ringbuf area is created by mapping
allocated pages, so use VM_MAP instead.

After the change, info in /proc/vmallocinfo also changes from
  [start]-[end]   24576 ringbuf_map_alloc+0x171/0x290 vmalloc user
to
  [start]-[end]   24576 ringbuf_map_alloc+0x171/0x290 vmap user

Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it")
Reported-by: syzbot+5ad567a418794b9b5983@syzkaller.appspotmail.com
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220202060158.6260-1-houtao1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/ringbuf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c
index f9913bc65ef8d..1e4bf23528a3d 100644
--- a/kernel/bpf/ringbuf.c
+++ b/kernel/bpf/ringbuf.c
@@ -108,7 +108,7 @@ static struct bpf_ringbuf *bpf_ringbuf_area_alloc(size_t data_sz, int numa_node)
 	}
 
 	rb = vmap(pages, nr_meta_pages + 2 * nr_data_pages,
-		  VM_ALLOC | VM_USERMAP, PAGE_KERNEL);
+		  VM_MAP | VM_USERMAP, PAGE_KERNEL);
 	if (rb) {
 		kmemleak_not_leak(pages);
 		rb->pages = pages;
-- 
GitLab


From 8f0fff8b5968a840379f66ef9453ae87636b41fe Mon Sep 17 00:00:00 2001
From: Muhammad Usama Anjum <usama.anjum@collabora.com>
Date: Thu, 27 Jan 2022 21:33:45 +0500
Subject: [PATCH 3644/4878] selftests/exec: Remove pipe from TEST_GEN_FILES

commit 908a26e139e8cf21093acc56d8e90ddad2ad1eff upstream.

pipe named FIFO special file is being created in execveat.c to perform
some tests. Makefile doesn't need to do anything with the pipe. When it
isn't found, Makefile generates the following build error:

make: *** No rule to make target
'../tools/testing/selftests/exec/pipe', needed by 'all'.  Stop.

pipe is created and removed during test run-time.

Amended change log to add pipe remove info:
Shuah Khan <skhan@linuxfoundation.org>

Fixes: 61016db15b8e ("selftests/exec: Verify execve of non-regular files fail")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/exec/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index dd61118df66ed..12c5e27d32c16 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -5,7 +5,7 @@ CFLAGS += -D_GNU_SOURCE
 
 TEST_PROGS := binfmt_script non-regular
 TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216
-TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir pipe
+TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir
 # Makefile is a run-time dependency, since it's accessed by the execveat test
 TEST_FILES := Makefile
 
-- 
GitLab


From 1536fafa23ac072ab1a8293ed8efca808b20cfa7 Mon Sep 17 00:00:00 2001
From: Muhammad Usama Anjum <usama.anjum@collabora.com>
Date: Thu, 27 Jan 2022 22:44:46 +0500
Subject: [PATCH 3645/4878] selftests: futex: Use variable MAKE instead of make
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit b9199181a9ef8252e47e207be8c23e1f50662620 upstream.

Recursive make commands should always use the variable MAKE, not the
explicit command name ‘make’. This has benefits and removes the
following warning when multiple jobs are used for the build:

make[2]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.

Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: André Almeida <andrealmeid@collabora.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/futex/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index 12631f0076a10..11e157d7533b8 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -11,7 +11,7 @@ all:
 	@for DIR in $(SUBDIRS); do		\
 		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
-		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
 		if [ -e $$DIR/$(TEST_PROGS) ]; then \
 			rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/; \
 		fi \
@@ -32,6 +32,6 @@ override define CLEAN
 	@for DIR in $(SUBDIRS); do		\
 		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
-		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
 	done
 endef
-- 
GitLab


From 2324f5fcdf9dd104b996d12cd0c173ddcc3c950f Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Tue, 1 Feb 2022 14:25:04 -0700
Subject: [PATCH 3646/4878] tools/resolve_btfids: Do not print any commands
 when building silently

commit 7f3bdbc3f13146eb9d07de81ea71f551587a384b upstream.

When building with 'make -s', there is some output from resolve_btfids:

$ make -sj"$(nproc)" oldconfig prepare
  MKDIR     .../tools/bpf/resolve_btfids/libbpf/
  MKDIR     .../tools/bpf/resolve_btfids//libsubcmd
  LINK     resolve_btfids

Silent mode means that no information should be emitted about what is
currently being done. Use the $(silent) variable from Makefile.include
to avoid defining the msg macro so that there is no information printed.

Fixes: fbbb68de80a4 ("bpf: Add resolve_btfids tool to resolve BTF IDs in ELF object")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220201212503.731732-1-nathan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/bpf/resolve_btfids/Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile
index bb9fa8de7e625..af9f9d3534c96 100644
--- a/tools/bpf/resolve_btfids/Makefile
+++ b/tools/bpf/resolve_btfids/Makefile
@@ -9,7 +9,11 @@ ifeq ($(V),1)
   msg =
 else
   Q = @
-  msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
+  ifeq ($(silent),1)
+    msg =
+  else
+    msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
+  endif
   MAKEFLAGS=--no-print-directory
 endif
 
-- 
GitLab


From 460aa9d8734084628abae7b11b03d8daeff0955d Mon Sep 17 00:00:00 2001
From: Riwen Lu <luriwen@kylinos.cn>
Date: Thu, 6 Jan 2022 16:46:09 +0800
Subject: [PATCH 3647/4878] rtc: cmos: Evaluate century appropriate
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit ff164ae39b82ee483b24579c8e22a13a8ce5bd04 upstream.

There's limiting the year to 2069. When setting the rtc year to 2070,
reading it returns 1970. Evaluate century starting from 19 to count the
correct year.

$ sudo date -s 20700106
Mon 06 Jan 2070 12:00:00 AM CST
$ sudo hwclock -w
$ sudo hwclock -r
1970-01-06 12:00:49.604968+08:00

Fixes: 2a4daadd4d3e5071 ("rtc: cmos: ignore bogus century byte")

Signed-off-by: Riwen Lu <luriwen@kylinos.cn>
Acked-by: Eric Wong <e@80x24.org>
Reviewed-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220106084609.1223688-1-luriwen@kylinos.cn
Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl> # preparation for stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rtc/rtc-mc146818-lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c
index 2ecd8752b088b..5add637c9ad23 100644
--- a/drivers/rtc/rtc-mc146818-lib.c
+++ b/drivers/rtc/rtc-mc146818-lib.c
@@ -83,7 +83,7 @@ unsigned int mc146818_get_time(struct rtc_time *time)
 	time->tm_year += real_year - 72;
 #endif
 
-	if (century > 20)
+	if (century > 19)
 		time->tm_year += (century - 19) * 100;
 
 	/*
-- 
GitLab


From 460f6b1a238d2ee1d69a4911f81ee1728242f0dd Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 2 Feb 2022 14:55:30 +0100
Subject: [PATCH 3648/4878] Revert "fbcon: Disable accelerated scrolling"

commit 87ab9f6b7417349aa197a6c7098d4fdd4beebb74 upstream.

This reverts commit 39aead8373b3c20bb5965c024dfb51a94e526151.

Revert the first (of 2) commits which disabled scrolling acceleration in
fbcon/fbdev.  It introduced a regression for fbdev-supported graphic cards
because of the performance penalty by doing screen scrolling by software
instead of using the existing graphic card 2D hardware acceleration.

Console scrolling acceleration was disabled by dropping code which
checked at runtime the driver hardware capabilities for the
BINFO_HWACCEL_COPYAREA or FBINFO_HWACCEL_FILLRECT flags and if set, it
enabled scrollmode SCROLL_MOVE which uses hardware acceleration to move
screen contents.  After dropping those checks scrollmode was hard-wired
to SCROLL_REDRAW instead, which forces all graphic cards to redraw every
character at the new screen position when scrolling.

This change effectively disabled all hardware-based scrolling acceleration for
ALL drivers, because now all kind of 2D hardware acceleration (bitblt,
fillrect) in the drivers isn't used any longer.

The original commit message mentions that only 3 DRM drivers (nouveau, omapdrm
and gma500) used hardware acceleration in the past and thus code for checking
and using scrolling acceleration is obsolete.

This statement is NOT TRUE, because beside the DRM drivers there are around 35
other fbdev drivers which depend on fbdev/fbcon and still provide hardware
acceleration for fbdev/fbcon.

The original commit message also states that syzbot found lots of bugs in fbcon
and thus it's "often the solution to just delete code and remove features".
This is true, and the bugs - which actually affected all users of fbcon,
including DRM - were fixed, or code was dropped like e.g. the support for
software scrollback in vgacon (commit 973c096f6a85).

So to further analyze which bugs were found by syzbot, I've looked through all
patches in drivers/video which were tagged with syzbot or syzkaller back to
year 2005. The vast majority fixed the reported issues on a higher level, e.g.
when screen is to be resized, or when font size is to be changed. The few ones
which touched driver code fixed a real driver bug, e.g. by adding a check.

But NONE of those patches touched code of either the SCROLL_MOVE or the
SCROLL_REDRAW case.

That means, there was no real reason why SCROLL_MOVE had to be ripped-out and
just SCROLL_REDRAW had to be used instead. The only reason I can imagine so far
was that SCROLL_MOVE wasn't used by DRM and as such it was assumed that it
could go away. That argument completely missed the fact that SCROLL_MOVE is
still heavily used by fbdev (non-DRM) drivers.

Some people mention that using memcpy() instead of the hardware acceleration is
pretty much the same speed. But that's not true, at least not for older graphic
cards and machines where we see speed decreases by factor 10 and more and thus
this change leads to console responsiveness way worse than before.

That's why the original commit is to be reverted. By reverting we
reintroduce hardware-based scrolling acceleration and fix the
performance regression for fbdev drivers.

There isn't any impact on DRM when reverting those patches.

Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Sven Schnelle <svens@stackframe.org>
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220202135531.92183-3-deller@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/gpu/todo.rst       | 18 -------------
 drivers/video/fbdev/core/fbcon.c | 45 ++++++++++++++++++++++++++------
 2 files changed, 37 insertions(+), 26 deletions(-)

diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 7272a4bd74dd0..28841609aa4f8 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -273,24 +273,6 @@ Contact: Daniel Vetter, Noralf Tronnes
 
 Level: Advanced
 
-Garbage collect fbdev scrolling acceleration
---------------------------------------------
-
-Scroll acceleration is disabled in fbcon by hard-wiring p->scrollmode =
-SCROLL_REDRAW. There's a ton of code this will allow us to remove:
-- lots of code in fbcon.c
-- a bunch of the hooks in fbcon_ops, maybe the remaining hooks could be called
-  directly instead of the function table (with a switch on p->rotate)
-- fb_copyarea is unused after this, and can be deleted from all drivers
-
-Note that not all acceleration code can be deleted, since clearing and cursor
-support is still accelerated, which might be good candidates for further
-deletion projects.
-
-Contact: Daniel Vetter
-
-Level: Intermediate
-
 idr_init_base()
 ---------------
 
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 42c72d051158f..66eb2dd2166cc 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1033,7 +1033,7 @@ static void fbcon_init(struct vc_data *vc, int init)
 	struct vc_data *svc = *default_mode;
 	struct fbcon_display *t, *p = &fb_display[vc->vc_num];
 	int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256;
-	int ret;
+	int cap, ret;
 
 	if (WARN_ON(info_idx == -1))
 	    return;
@@ -1042,6 +1042,7 @@ static void fbcon_init(struct vc_data *vc, int init)
 		con2fb_map[vc->vc_num] = info_idx;
 
 	info = registered_fb[con2fb_map[vc->vc_num]];
+	cap = info->flags;
 
 	if (logo_shown < 0 && console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
 		logo_shown = FBCON_LOGO_DONTSHOW;
@@ -1146,13 +1147,11 @@ static void fbcon_init(struct vc_data *vc, int init)
 
 	ops->graphics = 0;
 
-	/*
-	 * No more hw acceleration for fbcon.
-	 *
-	 * FIXME: Garbage collect all the now dead code after sufficient time
-	 * has passed.
-	 */
-	p->scrollmode = SCROLL_REDRAW;
+	if ((cap & FBINFO_HWACCEL_COPYAREA) &&
+	    !(cap & FBINFO_HWACCEL_DISABLED))
+		p->scrollmode = SCROLL_MOVE;
+	else /* default to something safe */
+		p->scrollmode = SCROLL_REDRAW;
 
 	/*
 	 *  ++guenther: console.c:vc_allocate() relies on initializing
@@ -1965,15 +1964,45 @@ static void updatescrollmode(struct fbcon_display *p,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	int fh = vc->vc_font.height;
+	int cap = info->flags;
+	u16 t = 0;
+	int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep,
+				  info->fix.xpanstep);
+	int ywrap = FBCON_SWAP(ops->rotate, info->fix.ywrapstep, t);
 	int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
 	int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual,
 				   info->var.xres_virtual);
+	int good_pan = (cap & FBINFO_HWACCEL_YPAN) &&
+		divides(ypan, vc->vc_font.height) && vyres > yres;
+	int good_wrap = (cap & FBINFO_HWACCEL_YWRAP) &&
+		divides(ywrap, vc->vc_font.height) &&
+		divides(vc->vc_font.height, vyres) &&
+		divides(vc->vc_font.height, yres);
+	int reading_fast = cap & FBINFO_READS_FAST;
+	int fast_copyarea = (cap & FBINFO_HWACCEL_COPYAREA) &&
+		!(cap & FBINFO_HWACCEL_DISABLED);
+	int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) &&
+		!(cap & FBINFO_HWACCEL_DISABLED);
 
 	p->vrows = vyres/fh;
 	if (yres > (fh * (vc->vc_rows + 1)))
 		p->vrows -= (yres - (fh * vc->vc_rows)) / fh;
 	if ((yres % fh) && (vyres % fh < yres % fh))
 		p->vrows--;
+
+	if (good_wrap || good_pan) {
+		if (reading_fast || fast_copyarea)
+			p->scrollmode = good_wrap ?
+				SCROLL_WRAP_MOVE : SCROLL_PAN_MOVE;
+		else
+			p->scrollmode = good_wrap ? SCROLL_REDRAW :
+				SCROLL_PAN_REDRAW;
+	} else {
+		if (reading_fast || (fast_copyarea && !fast_imageblit))
+			p->scrollmode = SCROLL_MOVE;
+		else
+			p->scrollmode = SCROLL_REDRAW;
+	}
 }
 
 #define PITCH(w) (((w) + 7) >> 3)
-- 
GitLab


From 57e8859acc6024ca9041f7fa58a0afed2ed6ea87 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 2 Feb 2022 14:55:31 +0100
Subject: [PATCH 3649/4878] fbcon: Add option to enable legacy hardware
 acceleration

commit a3f781a9d6114c1d1e01defb7aa234dec45d2a5f upstream.

Add a config option CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION to
enable bitblt and fillrect hardware acceleration in the framebuffer
console. If disabled, such acceleration will not be used, even if it is
supported by the graphics hardware driver.

If you plan to use DRM as your main graphics output system, you should
disable this option since it will prevent compiling in code which isn't
used later on when DRM takes over.

For all other configurations, e.g. if none of your graphic cards support
DRM (yet), DRM isn't available for your architecture, or you can't be
sure that the graphic card in the target system will support DRM, you
most likely want to enable this option.

In the non-accelerated case (e.g. when DRM is used), the inlined
fb_scrollmode() function is hardcoded to return SCROLL_REDRAW and as such the
compiler is able to optimize much unneccesary code away.

In this v3 patch version I additionally changed the GETVYRES() and GETVXRES()
macros to take a pointer to the fbcon_display struct. This fixes the build when
console rotation is enabled and helps the compiler again to optimize out code.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220202135531.92183-4-deller@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/console/Kconfig           | 20 +++++++++++++
 drivers/video/fbdev/core/fbcon.c        | 39 ++++++++++++++++++-------
 drivers/video/fbdev/core/fbcon.h        | 15 +++++++++-
 drivers/video/fbdev/core/fbcon_ccw.c    | 10 +++----
 drivers/video/fbdev/core/fbcon_cw.c     | 10 +++----
 drivers/video/fbdev/core/fbcon_rotate.h |  4 +--
 drivers/video/fbdev/core/fbcon_ud.c     | 20 ++++++-------
 7 files changed, 84 insertions(+), 34 deletions(-)

diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index ee33b8ec62bb2..47c4939577725 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -78,6 +78,26 @@ config FRAMEBUFFER_CONSOLE
 	help
 	  Low-level framebuffer-based console driver.
 
+config FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+	bool "Enable legacy fbcon hardware acceleration code"
+	depends on FRAMEBUFFER_CONSOLE
+	default y if PARISC
+	default n
+	help
+	  This option enables the fbcon (framebuffer text-based) hardware
+	  acceleration for graphics drivers which were written for the fbdev
+	  graphics interface.
+
+	  On modern machines, on mainstream machines (like x86-64) or when
+	  using a modern Linux distribution those fbdev drivers usually aren't used.
+	  So enabling this option wouldn't have any effect, which is why you want
+	  to disable this option on such newer machines.
+
+	  If you compile this kernel for older machines which still require the
+	  fbdev drivers, you may want to say Y.
+
+	  If unsure, select n.
+
 config FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
        bool "Map the console to the primary display device"
        depends on FRAMEBUFFER_CONSOLE
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 66eb2dd2166cc..f102519ccefb4 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1147,11 +1147,13 @@ static void fbcon_init(struct vc_data *vc, int init)
 
 	ops->graphics = 0;
 
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
 	if ((cap & FBINFO_HWACCEL_COPYAREA) &&
 	    !(cap & FBINFO_HWACCEL_DISABLED))
 		p->scrollmode = SCROLL_MOVE;
 	else /* default to something safe */
 		p->scrollmode = SCROLL_REDRAW;
+#endif
 
 	/*
 	 *  ++guenther: console.c:vc_allocate() relies on initializing
@@ -1717,7 +1719,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
 			count = vc->vc_rows;
 		if (logo_shown >= 0)
 			goto redraw_up;
-		switch (p->scrollmode) {
+		switch (fb_scrollmode(p)) {
 		case SCROLL_MOVE:
 			fbcon_redraw_blit(vc, info, p, t, b - t - count,
 				     count);
@@ -1807,7 +1809,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
 			count = vc->vc_rows;
 		if (logo_shown >= 0)
 			goto redraw_down;
-		switch (p->scrollmode) {
+		switch (fb_scrollmode(p)) {
 		case SCROLL_MOVE:
 			fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,
 				     -count);
@@ -1958,12 +1960,12 @@ static void fbcon_bmove_rec(struct vc_data *vc, struct fbcon_display *p, int sy,
 		   height, width);
 }
 
-static void updatescrollmode(struct fbcon_display *p,
+static void updatescrollmode_accel(struct fbcon_display *p,
 					struct fb_info *info,
 					struct vc_data *vc)
 {
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
 	struct fbcon_ops *ops = info->fbcon_par;
-	int fh = vc->vc_font.height;
 	int cap = info->flags;
 	u16 t = 0;
 	int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep,
@@ -1984,12 +1986,6 @@ static void updatescrollmode(struct fbcon_display *p,
 	int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) &&
 		!(cap & FBINFO_HWACCEL_DISABLED);
 
-	p->vrows = vyres/fh;
-	if (yres > (fh * (vc->vc_rows + 1)))
-		p->vrows -= (yres - (fh * vc->vc_rows)) / fh;
-	if ((yres % fh) && (vyres % fh < yres % fh))
-		p->vrows--;
-
 	if (good_wrap || good_pan) {
 		if (reading_fast || fast_copyarea)
 			p->scrollmode = good_wrap ?
@@ -2003,6 +1999,27 @@ static void updatescrollmode(struct fbcon_display *p,
 		else
 			p->scrollmode = SCROLL_REDRAW;
 	}
+#endif
+}
+
+static void updatescrollmode(struct fbcon_display *p,
+					struct fb_info *info,
+					struct vc_data *vc)
+{
+	struct fbcon_ops *ops = info->fbcon_par;
+	int fh = vc->vc_font.height;
+	int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
+	int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual,
+				   info->var.xres_virtual);
+
+	p->vrows = vyres/fh;
+	if (yres > (fh * (vc->vc_rows + 1)))
+		p->vrows -= (yres - (fh * vc->vc_rows)) / fh;
+	if ((yres % fh) && (vyres % fh < yres % fh))
+		p->vrows--;
+
+	/* update scrollmode in case hardware acceleration is used */
+	updatescrollmode_accel(p, info, vc);
 }
 
 #define PITCH(w) (((w) + 7) >> 3)
@@ -2163,7 +2180,7 @@ static int fbcon_switch(struct vc_data *vc)
 
 	updatescrollmode(p, info, vc);
 
-	switch (p->scrollmode) {
+	switch (fb_scrollmode(p)) {
 	case SCROLL_WRAP_MOVE:
 		scrollback_phys_max = p->vrows - vc->vc_rows;
 		break;
diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h
index 9315b360c8981..0f16cbc99e6a4 100644
--- a/drivers/video/fbdev/core/fbcon.h
+++ b/drivers/video/fbdev/core/fbcon.h
@@ -29,7 +29,9 @@ struct fbcon_display {
     /* Filled in by the low-level console driver */
     const u_char *fontdata;
     int userfont;                   /* != 0 if fontdata kmalloc()ed */
-    u_short scrollmode;             /* Scroll Method */
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+    u_short scrollmode;             /* Scroll Method, use fb_scrollmode() */
+#endif
     u_short inverse;                /* != 0 text black on white as default */
     short yscroll;                  /* Hardware scrolling */
     int vrows;                      /* number of virtual rows */
@@ -208,6 +210,17 @@ static inline int attr_col_ec(int shift, struct vc_data *vc,
 #define SCROLL_REDRAW	   0x004
 #define SCROLL_PAN_REDRAW  0x005
 
+static inline u_short fb_scrollmode(struct fbcon_display *fb)
+{
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+	return fb->scrollmode;
+#else
+	/* hardcoded to SCROLL_REDRAW if acceleration was disabled. */
+	return SCROLL_REDRAW;
+#endif
+}
+
+
 #ifdef CONFIG_FB_TILEBLITTING
 extern void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info);
 #endif
diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c
index bbd869efd03bc..f75b24c32d497 100644
--- a/drivers/video/fbdev/core/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -65,7 +65,7 @@ static void ccw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_copyarea area;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	area.sx = sy * vc->vc_font.height;
 	area.sy = vyres - ((sx + width) * vc->vc_font.width);
@@ -83,7 +83,7 @@ static void ccw_clear(struct vc_data *vc, struct fb_info *info, int sy,
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_fillrect region;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	region.dx = sy * vc->vc_font.height;
@@ -140,7 +140,7 @@ static void ccw_putcs(struct vc_data *vc, struct fb_info *info,
 	u32 cnt, pitch, size;
 	u32 attribute = get_attribute(info, scr_readw(s));
 	u8 *dst, *buf = NULL;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -229,7 +229,7 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
 	int err = 1, dx, dy;
 	char *src;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -387,7 +387,7 @@ static int ccw_update_start(struct fb_info *info)
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	u32 yoffset;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 	int err;
 
 	yoffset = (vyres - info->var.yres) - ops->var.xoffset;
diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c
index a34cbe8e98744..cf03dc62f35d3 100644
--- a/drivers/video/fbdev/core/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -50,7 +50,7 @@ static void cw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_copyarea area;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	area.sx = vxres - ((sy + height) * vc->vc_font.height);
 	area.sy = sx * vc->vc_font.width;
@@ -68,7 +68,7 @@ static void cw_clear(struct vc_data *vc, struct fb_info *info, int sy,
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_fillrect region;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	region.dx = vxres - ((sy + height) * vc->vc_font.height);
@@ -125,7 +125,7 @@ static void cw_putcs(struct vc_data *vc, struct fb_info *info,
 	u32 cnt, pitch, size;
 	u32 attribute = get_attribute(info, scr_readw(s));
 	u8 *dst, *buf = NULL;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -212,7 +212,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
 	int err = 1, dx, dy;
 	char *src;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -369,7 +369,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 static int cw_update_start(struct fb_info *info)
 {
 	struct fbcon_ops *ops = info->fbcon_par;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 	u32 xoffset;
 	int err;
 
diff --git a/drivers/video/fbdev/core/fbcon_rotate.h b/drivers/video/fbdev/core/fbcon_rotate.h
index e233444cda664..01cbe303b8a29 100644
--- a/drivers/video/fbdev/core/fbcon_rotate.h
+++ b/drivers/video/fbdev/core/fbcon_rotate.h
@@ -12,11 +12,11 @@
 #define _FBCON_ROTATE_H
 
 #define GETVYRES(s,i) ({                           \
-        (s == SCROLL_REDRAW || s == SCROLL_MOVE) ? \
+        (fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE) ? \
         (i)->var.yres : (i)->var.yres_virtual; })
 
 #define GETVXRES(s,i) ({                           \
-        (s == SCROLL_REDRAW || s == SCROLL_MOVE || !(i)->fix.xpanstep) ? \
+        (fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE || !(i)->fix.xpanstep) ? \
         (i)->var.xres : (i)->var.xres_virtual; })
 
 
diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c
index 199cbc7abe353..c5d2da731d686 100644
--- a/drivers/video/fbdev/core/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -50,8 +50,8 @@ static void ud_bmove(struct vc_data *vc, struct fb_info *info, int sy,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_copyarea area;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	area.sy = vyres - ((sy + height) * vc->vc_font.height);
 	area.sx = vxres - ((sx + width) * vc->vc_font.width);
@@ -69,8 +69,8 @@ static void ud_clear(struct vc_data *vc, struct fb_info *info, int sy,
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_fillrect region;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	region.dy = vyres - ((sy + height) * vc->vc_font.height);
@@ -162,8 +162,8 @@ static void ud_putcs(struct vc_data *vc, struct fb_info *info,
 	u32 mod = vc->vc_font.width % 8, cnt, pitch, size;
 	u32 attribute = get_attribute(info, scr_readw(s));
 	u8 *dst, *buf = NULL;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -259,8 +259,8 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
 	int err = 1, dx, dy;
 	char *src;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -410,8 +410,8 @@ static int ud_update_start(struct fb_info *info)
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	int xoffset, yoffset;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 	int err;
 
 	xoffset = vxres - info->var.xres - ops->var.xoffset;
-- 
GitLab


From 8c0e6a8a630e7abd4bcba1c50facce84587fadaf Mon Sep 17 00:00:00 2001
From: Ian Rogers <irogers@google.com>
Date: Fri, 4 Feb 2022 17:09:41 -0800
Subject: [PATCH 3650/4878] perf stat: Fix display of grouped aliased events

[ Upstream commit b2b1aa73ade982c175ac926a1fd34e76ad628b94 ]

An event may have a number of uncore aliases that when added to the
evlist are consecutive.

If there are multiple uncore events in a group then
parse_events__set_leader_for_uncore_aliase will reorder the evlist so
that events on the same PMU are adjacent.

The collect_all_aliases function assumes that aliases are in blocks so
that only the first counter is printed and all others are marked merged.

The reordering for groups breaks the assumption and so all counts are
printed.

This change removes the assumption from collect_all_aliases
that the events are in blocks and instead processes the entire evlist.

Before:

  ```
  $ perf stat -e '{UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE,UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE},duration_time' -a -A -- sleep 1

   Performance counter stats for 'system wide':

  CPU0                  256,866      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 494,413      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      967      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,738      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  285,161      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 429,920      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      955      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,443      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  310,753      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 416,657      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,231      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,573      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  416,067      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 405,966      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,481      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,447      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  312,911      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 408,154      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,086      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,380      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  333,994      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 370,349      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,287      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,335      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  188,107      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 302,423      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      701      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,070      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  307,221      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 383,642      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,036      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,158      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  318,479      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 821,545      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,028      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,550      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  227,618      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 372,272      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      903      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,456      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  376,783      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 419,827      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,406      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,453      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  286,583      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 429,956      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      999      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,436      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  313,867      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 370,159      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,114      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,291      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  342,083      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 409,111      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,399      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,684      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  365,828      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 376,037      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,378      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,411      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  382,456      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 621,743      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,232      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,955      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  342,316      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 385,067      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,176      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,268      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  373,588      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 386,163      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,394      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,464      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  381,206      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 546,891      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,266      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,712      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  221,176      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 392,069      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      831      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,456      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  355,401      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 705,595      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,235      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,216      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  371,436      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 428,103      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,306      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,442      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  384,352      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 504,200      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,468      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,860      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  228,856      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 287,976      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      832      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,060      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  215,121      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 334,162      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      681      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,026      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  296,179      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 436,083      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,084      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,525      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  262,296      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 416,573      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      986      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,533      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  285,852      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 359,842      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,073      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,326      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  303,379      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 367,222      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,008      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,156      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  273,487      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 425,449      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      932      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,367      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  297,596      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 414,793      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,140      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,601      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  342,365      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 360,422      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,291      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,342      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  327,196      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 580,858      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,122      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,014      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  296,564      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 452,817      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,087      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,694      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  375,002      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 389,393      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,478      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,540      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  365,213      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 594,685      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,401      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,222      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0            1,000,749,060 ns   duration_time

         1.000749060 seconds time elapsed
  ```

After:

  ```
   Performance counter stats for 'system wide':

  CPU0               20,547,434      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36              45,202,862      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                   82,001      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                 159,688      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0            1,000,464,828 ns   duration_time

         1.000464828 seconds time elapsed
  ```

Fixes: 3cdc5c2cb924acb4 ("perf parse-events: Handle uncore event aliases in small groups properly")
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Asaf Yaffe <asaf.yaffe@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kshipra Bopardikar <kshipra.bopardikar@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220205010941.1065469-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/util/stat-display.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index a963b5b8eb724..96fe9c1af3364 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -555,15 +555,16 @@ static void collect_all_aliases(struct perf_stat_config *config, struct evsel *c
 
 	alias = list_prepare_entry(counter, &(evlist->core.entries), core.node);
 	list_for_each_entry_continue (alias, &evlist->core.entries, core.node) {
-		if (strcmp(evsel__name(alias), evsel__name(counter)) ||
-		    alias->scale != counter->scale ||
-		    alias->cgrp != counter->cgrp ||
-		    strcmp(alias->unit, counter->unit) ||
-		    evsel__is_clock(alias) != evsel__is_clock(counter) ||
-		    !strcmp(alias->pmu_name, counter->pmu_name))
-			break;
-		alias->merged_stat = true;
-		cb(config, alias, data, false);
+		/* Merge events with the same name, etc. but on different PMUs. */
+		if (!strcmp(evsel__name(alias), evsel__name(counter)) &&
+			alias->scale == counter->scale &&
+			alias->cgrp == counter->cgrp &&
+			!strcmp(alias->unit, counter->unit) &&
+			evsel__is_clock(alias) == evsel__is_clock(counter) &&
+			strcmp(alias->pmu_name, counter->pmu_name)) {
+			alias->merged_stat = true;
+			cb(config, alias, data, false);
+		}
 	}
 }
 
-- 
GitLab


From 456f041e035913fcedb275aff6f8a71dfebcd394 Mon Sep 17 00:00:00 2001
From: Tristan Hume <tristan@thume.ca>
Date: Thu, 27 Jan 2022 17:08:06 -0500
Subject: [PATCH 3651/4878] perf/x86/intel/pt: Fix crash with stop filters in
 single-range mode

commit 1d9093457b243061a9bba23543c38726e864a643 upstream.

Add a check for !buf->single before calling pt_buffer_region_size in a
place where a missing check can cause a kernel crash.

Fixes a bug introduced by commit 670638477aed ("perf/x86/intel/pt:
Opportunistically use single range output mode"), which added a
support for PT single-range output mode. Since that commit if a PT
stop filter range is hit while tracing, the kernel will crash because
of a null pointer dereference in pt_handle_status due to calling
pt_buffer_region_size without a ToPA configured.

The commit which introduced single-range mode guarded almost all uses of
the ToPA buffer variables with checks of the buf->single variable, but
missed the case where tracing was stopped by the PT hardware, which
happens when execution hits a configured stop filter.

Tested that hitting a stop filter while PT recording successfully
records a trace with this patch but crashes without this patch.

Fixes: 670638477aed ("perf/x86/intel/pt: Opportunistically use single range output mode")
Signed-off-by: Tristan Hume <tristan@thume.ca>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@kernel.org
Link: https://lkml.kernel.org/r/20220127220806.73664-1-tristan@thume.ca
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/intel/pt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 37129b76135a1..c084899e95825 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -897,8 +897,9 @@ static void pt_handle_status(struct pt *pt)
 		 * means we are already losing data; need to let the decoder
 		 * know.
 		 */
-		if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries) ||
-		    buf->output_off == pt_buffer_region_size(buf)) {
+		if (!buf->single &&
+		    (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries) ||
+		     buf->output_off == pt_buffer_region_size(buf))) {
 			perf_aux_output_flag(&pt->handle,
 			                     PERF_AUX_FLAG_TRUNCATED);
 			advance++;
-- 
GitLab


From dd274cf85269a24a60282ae21268cf3bf83514e3 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 27 Jan 2022 12:32:51 +0100
Subject: [PATCH 3652/4878] x86/perf: Default set FREEZE_ON_SMI for all

commit a01994f5e5c79d3a35e5e8cf4252c7f2147323c3 upstream.

Kyle reported that rr[0] has started to malfunction on Comet Lake and
later CPUs due to EFI starting to make use of CPL3 [1] and the PMU
event filtering not distinguishing between regular CPL3 and SMM CPL3.

Since this is a privilege violation, default disable SMM visibility
where possible.

Administrators wanting to observe SMM cycles can easily change this
using the sysfs attribute while regular users don't have access to
this file.

[0] https://rr-project.org/

[1] See the Intel white paper "Trustworthy SMM on the Intel vPro Platform"
at https://bugzilla.kernel.org/attachment.cgi?id=300300, particularly the
end of page 5.

Reported-by: Kyle Huey <me@kylehuey.com>
Suggested-by: Andrew Cooper <Andrew.Cooper3@citrix.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@kernel.org
Link: https://lkml.kernel.org/r/YfKChjX61OW4CkYm@hirez.programming.kicks-ass.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/intel/core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 6525693e7aeaa..5ba13b00e3a71 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -4353,6 +4353,19 @@ static __initconst const struct x86_pmu intel_pmu = {
 	.lbr_read		= intel_pmu_lbr_read_64,
 	.lbr_save		= intel_pmu_lbr_save,
 	.lbr_restore		= intel_pmu_lbr_restore,
+
+	/*
+	 * SMM has access to all 4 rings and while traditionally SMM code only
+	 * ran in CPL0, 2021-era firmware is starting to make use of CPL3 in SMM.
+	 *
+	 * Since the EVENTSEL.{USR,OS} CPL filtering makes no distinction
+	 * between SMM or not, this results in what should be pure userspace
+	 * counters including SMM data.
+	 *
+	 * This is a clear privilege issue, therefore globally disable
+	 * counting SMM by default.
+	 */
+	.attr_freeze_on_smi	= 1,
 };
 
 static __init void intel_clovertown_quirk(void)
-- 
GitLab


From 2a12faf55baed67c343e8bc5f1e54d2a5b4336a4 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Mon, 24 Jan 2022 21:55:02 +0300
Subject: [PATCH 3653/4878] EDAC/altera: Fix deferred probing

commit 279eb8575fdaa92c314a54c0d583c65e26229107 upstream.

The driver overrides the error codes returned by platform_get_irq() to
-ENODEV for some strange reason, so if it returns -EPROBE_DEFER, the
driver will fail the probe permanently instead of the deferred probing.
Switch to propagating the proper error codes to platform driver code
upwards.

  [ bp: Massage commit message. ]

Fixes: 71bcada88b0f ("edac: altera: Add Altera SDRAM EDAC support")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220124185503.6720-2-s.shtylyov@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/altera_edac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index e91cf1147a4e0..be38fd71f731a 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -349,7 +349,7 @@ static int altr_sdram_probe(struct platform_device *pdev)
 	if (irq < 0) {
 		edac_printk(KERN_ERR, EDAC_MC,
 			    "No irq %d in DT\n", irq);
-		return -ENODEV;
+		return irq;
 	}
 
 	/* Arria10 has a 2nd IRQ */
-- 
GitLab


From ef2053afd71e5b1f3a94e81293f8f67bb3c7807b Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Mon, 24 Jan 2022 21:55:03 +0300
Subject: [PATCH 3654/4878] EDAC/xgene: Fix deferred probing

commit dfd0dfb9a7cc04acf93435b440dd34c2ca7b4424 upstream.

The driver overrides error codes returned by platform_get_irq_optional()
to -EINVAL for some strange reason, so if it returns -EPROBE_DEFER, the
driver will fail the probe permanently instead of the deferred probing.
Switch to propagating the proper error codes to platform driver code
upwards.

  [ bp: Massage commit message. ]

Fixes: 0d4429301c4a ("EDAC: Add APM X-Gene SoC EDAC driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220124185503.6720-3-s.shtylyov@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/xgene_edac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/xgene_edac.c b/drivers/edac/xgene_edac.c
index 1d2c27a00a4a8..cd1eefeff1923 100644
--- a/drivers/edac/xgene_edac.c
+++ b/drivers/edac/xgene_edac.c
@@ -1919,7 +1919,7 @@ static int xgene_edac_probe(struct platform_device *pdev)
 			irq = platform_get_irq(pdev, i);
 			if (irq < 0) {
 				dev_err(&pdev->dev, "No IRQ resource\n");
-				rc = -EINVAL;
+				rc = irq;
 				goto out_err;
 			}
 			rc = devm_request_irq(&pdev->dev, irq,
-- 
GitLab


From 8d71fc23fcb895739803bbddd16542ff566788b3 Mon Sep 17 00:00:00 2001
From: Xin Yin <yinxin.x@bytedance.com>
Date: Mon, 10 Jan 2022 11:51:40 +0800
Subject: [PATCH 3655/4878] ext4: prevent used blocks from being allocated
 during fast commit replay

commit 599ea31d13617c5484c40cdf50d88301dc351cfc upstream.

During fast commit replay procedure, we clear inode blocks bitmap in
ext4_ext_clear_bb(), this may cause ext4_mb_new_blocks_simple() allocate
blocks still in use.

Make ext4_fc_record_regions() also record physical disk regions used by
inodes during replay procedure. Then ext4_mb_new_blocks_simple() can
excludes these blocks in use.

Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Link: https://lore.kernel.org/r/20220110035141.1980-2-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/ext4.h        |  3 +++
 fs/ext4/extents.c     |  4 ++++
 fs/ext4/fast_commit.c | 20 +++++++++++++++-----
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 99d98d1010217..455eb349c76f8 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2779,6 +2779,9 @@ void ext4_fc_replay_cleanup(struct super_block *sb);
 int ext4_fc_commit(journal_t *journal, tid_t commit_tid);
 int __init ext4_fc_init_dentry_cache(void);
 void ext4_fc_destroy_dentry_cache(void);
+int ext4_fc_record_regions(struct super_block *sb, int ino,
+			   ext4_lblk_t lblk, ext4_fsblk_t pblk,
+			   int len, int replay);
 
 /* mballoc.c */
 extern const struct seq_operations ext4_mb_seq_groups_ops;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index b297b14de7509..0fda3051760d1 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -6088,11 +6088,15 @@ int ext4_ext_clear_bb(struct inode *inode)
 
 					ext4_mb_mark_bb(inode->i_sb,
 							path[j].p_block, 1, 0);
+					ext4_fc_record_regions(inode->i_sb, inode->i_ino,
+							0, path[j].p_block, 1, 1);
 				}
 				ext4_ext_drop_refs(path);
 				kfree(path);
 			}
 			ext4_mb_mark_bb(inode->i_sb, map.m_pblk, map.m_len, 0);
+			ext4_fc_record_regions(inode->i_sb, inode->i_ino,
+					map.m_lblk, map.m_pblk, map.m_len, 1);
 		}
 		cur = cur + map.m_len;
 	}
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index f483abcd5213a..1b62734d00700 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1558,16 +1558,23 @@ out:
 }
 
 /*
- * Record physical disk regions which are in use as per fast commit area. Our
- * simple replay phase allocator excludes these regions from allocation.
+ * Record physical disk regions which are in use as per fast commit area,
+ * and used by inodes during replay phase. Our simple replay phase
+ * allocator excludes these regions from allocation.
  */
-static int ext4_fc_record_regions(struct super_block *sb, int ino,
-		ext4_lblk_t lblk, ext4_fsblk_t pblk, int len)
+int ext4_fc_record_regions(struct super_block *sb, int ino,
+		ext4_lblk_t lblk, ext4_fsblk_t pblk, int len, int replay)
 {
 	struct ext4_fc_replay_state *state;
 	struct ext4_fc_alloc_region *region;
 
 	state = &EXT4_SB(sb)->s_fc_replay_state;
+	/*
+	 * during replay phase, the fc_regions_valid may not same as
+	 * fc_regions_used, update it when do new additions.
+	 */
+	if (replay && state->fc_regions_used != state->fc_regions_valid)
+		state->fc_regions_used = state->fc_regions_valid;
 	if (state->fc_regions_used == state->fc_regions_size) {
 		state->fc_regions_size +=
 			EXT4_FC_REPLAY_REALLOC_INCREMENT;
@@ -1585,6 +1592,9 @@ static int ext4_fc_record_regions(struct super_block *sb, int ino,
 	region->pblk = pblk;
 	region->len = len;
 
+	if (replay)
+		state->fc_regions_valid++;
+
 	return 0;
 }
 
@@ -1954,7 +1964,7 @@ static int ext4_fc_replay_scan(journal_t *journal,
 			ret = ext4_fc_record_regions(sb,
 				le32_to_cpu(ext.fc_ino),
 				le32_to_cpu(ex->ee_block), ext4_ext_pblock(ex),
-				ext4_ext_get_actual_len(ex));
+				ext4_ext_get_actual_len(ex), 0);
 			if (ret < 0)
 				break;
 			ret = JBD2_FC_REPLAY_CONTINUE;
-- 
GitLab


From 6c5bd55e36d3bdcbd723902b29bcf083e5592c6f Mon Sep 17 00:00:00 2001
From: Xin Yin <yinxin.x@bytedance.com>
Date: Mon, 10 Jan 2022 11:51:41 +0800
Subject: [PATCH 3656/4878] ext4: modify the logic of ext4_mb_new_blocks_simple

commit 31a074a0c62dc0d2bfb9b543142db4fe27f9e5eb upstream.

For now in ext4_mb_new_blocks_simple, if we found a block which
should be excluded then will switch to next group, this may
probably cause 'group' run out of range.

Change to check next block in the same group when get a block should
be excluded. Also change the search range to EXT4_CLUSTERS_PER_GROUP
and add error checking.

Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20220110035141.1980-3-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/mballoc.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e40f87d07783a..110c25824a67f 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -5173,7 +5173,8 @@ static ext4_fsblk_t ext4_mb_new_blocks_simple(handle_t *handle,
 	struct super_block *sb = ar->inode->i_sb;
 	ext4_group_t group;
 	ext4_grpblk_t blkoff;
-	int i = sb->s_blocksize;
+	ext4_grpblk_t max = EXT4_CLUSTERS_PER_GROUP(sb);
+	ext4_grpblk_t i = 0;
 	ext4_fsblk_t goal, block;
 	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
 
@@ -5195,19 +5196,26 @@ static ext4_fsblk_t ext4_mb_new_blocks_simple(handle_t *handle,
 		ext4_get_group_no_and_offset(sb,
 			max(ext4_group_first_block_no(sb, group), goal),
 			NULL, &blkoff);
-		i = mb_find_next_zero_bit(bitmap_bh->b_data, sb->s_blocksize,
+		while (1) {
+			i = mb_find_next_zero_bit(bitmap_bh->b_data, max,
 						blkoff);
+			if (i >= max)
+				break;
+			if (ext4_fc_replay_check_excluded(sb,
+				ext4_group_first_block_no(sb, group) + i)) {
+				blkoff = i + 1;
+			} else
+				break;
+		}
 		brelse(bitmap_bh);
-		if (i >= sb->s_blocksize)
-			continue;
-		if (ext4_fc_replay_check_excluded(sb,
-			ext4_group_first_block_no(sb, group) + i))
-			continue;
-		break;
+		if (i < max)
+			break;
 	}
 
-	if (group >= ext4_get_groups_count(sb) && i >= sb->s_blocksize)
+	if (group >= ext4_get_groups_count(sb) || i >= max) {
+		*errp = -ENOSPC;
 		return 0;
+	}
 
 	block = ext4_group_first_block_no(sb, group) + i;
 	ext4_mb_mark_bb(sb, block, 1, 1);
-- 
GitLab


From 764793b4a5d0b4040c5ceeeeb859c42933f8532b Mon Sep 17 00:00:00 2001
From: Ritesh Harjani <riteshh@linux.ibm.com>
Date: Mon, 17 Jan 2022 17:41:47 +0530
Subject: [PATCH 3657/4878] ext4: fix error handling in
 ext4_restore_inline_data()

commit 897026aaa73eb2517dfea8d147f20ddb0b813044 upstream.

While running "./check -I 200 generic/475" it sometimes gives below
kernel BUG(). Ideally we should not call ext4_write_inline_data() if
ext4_create_inline_data() has failed.

<log snip>
[73131.453234] kernel BUG at fs/ext4/inline.c:223!

<code snip>
 212 static void ext4_write_inline_data(struct inode *inode, struct ext4_iloc *iloc,
 213                                    void *buffer, loff_t pos, unsigned int len)
 214 {
<...>
 223         BUG_ON(!EXT4_I(inode)->i_inline_off);
 224         BUG_ON(pos + len > EXT4_I(inode)->i_inline_size);

This patch handles the error and prints out a emergency msg saying potential
data loss for the given inode (since we couldn't restore the original
inline_data due to some previous error).

[ 9571.070313] EXT4-fs (dm-0): error restoring inline_data for inode -- potential data loss! (inode 1703982, error -30)

Reported-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/9f4cd7dfd54fa58ff27270881823d94ddf78dd07.1642416995.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/inline.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index a96b688a0410f..ae1f0c57f54d2 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1120,7 +1120,15 @@ static void ext4_restore_inline_data(handle_t *handle, struct inode *inode,
 				     struct ext4_iloc *iloc,
 				     void *buf, int inline_size)
 {
-	ext4_create_inline_data(handle, inode, inline_size);
+	int ret;
+
+	ret = ext4_create_inline_data(handle, inode, inline_size);
+	if (ret) {
+		ext4_msg(inode->i_sb, KERN_EMERG,
+			"error restoring inline_data for inode -- potential data loss! (inode %lu, error %d)",
+			inode->i_ino, ret);
+		return;
+	}
 	ext4_write_inline_data(inode, iloc, buf, 0, inline_size);
 	ext4_set_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA);
 }
-- 
GitLab


From 62e46e0ffc02daa8fcfc02f7a932cc8a19601b19 Mon Sep 17 00:00:00 2001
From: Ritesh Harjani <riteshh@linux.ibm.com>
Date: Mon, 17 Jan 2022 17:41:49 +0530
Subject: [PATCH 3658/4878] ext4: fix error handling in
 ext4_fc_record_modified_inode()

commit cdce59a1549190b66f8e3fe465c2b2f714b98a94 upstream.

Current code does not fully takes care of krealloc() error case, which
could lead to silent memory corruption or a kernel bug.  This patch
fixes that.

Also it cleans up some duplicated error handling logic from various
functions in fast_commit.c file.

Reported-by: luo penghao <luo.penghao@zte.com.cn>
Suggested-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/62e8b6a1cce9359682051deb736a3c0953c9d1e9.1642416995.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/fast_commit.c | 64 ++++++++++++++++++++-----------------------
 1 file changed, 29 insertions(+), 35 deletions(-)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 1b62734d00700..5ed7c12c52839 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1388,14 +1388,15 @@ static int ext4_fc_record_modified_inode(struct super_block *sb, int ino)
 		if (state->fc_modified_inodes[i] == ino)
 			return 0;
 	if (state->fc_modified_inodes_used == state->fc_modified_inodes_size) {
-		state->fc_modified_inodes_size +=
-			EXT4_FC_REPLAY_REALLOC_INCREMENT;
 		state->fc_modified_inodes = krealloc(
-					state->fc_modified_inodes, sizeof(int) *
-					state->fc_modified_inodes_size,
-					GFP_KERNEL);
+				state->fc_modified_inodes,
+				sizeof(int) * (state->fc_modified_inodes_size +
+				EXT4_FC_REPLAY_REALLOC_INCREMENT),
+				GFP_KERNEL);
 		if (!state->fc_modified_inodes)
 			return -ENOMEM;
+		state->fc_modified_inodes_size +=
+			EXT4_FC_REPLAY_REALLOC_INCREMENT;
 	}
 	state->fc_modified_inodes[state->fc_modified_inodes_used++] = ino;
 	return 0;
@@ -1427,7 +1428,9 @@ static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl,
 	}
 	inode = NULL;
 
-	ext4_fc_record_modified_inode(sb, ino);
+	ret = ext4_fc_record_modified_inode(sb, ino);
+	if (ret)
+		goto out;
 
 	raw_fc_inode = (struct ext4_inode *)
 		(val + offsetof(struct ext4_fc_inode, fc_raw_inode));
@@ -1626,6 +1629,8 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
 	}
 
 	ret = ext4_fc_record_modified_inode(sb, inode->i_ino);
+	if (ret)
+		goto out;
 
 	start = le32_to_cpu(ex->ee_block);
 	start_pblk = ext4_ext_pblock(ex);
@@ -1643,18 +1648,14 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
 		map.m_pblk = 0;
 		ret = ext4_map_blocks(NULL, inode, &map, 0);
 
-		if (ret < 0) {
-			iput(inode);
-			return 0;
-		}
+		if (ret < 0)
+			goto out;
 
 		if (ret == 0) {
 			/* Range is not mapped */
 			path = ext4_find_extent(inode, cur, NULL, 0);
-			if (IS_ERR(path)) {
-				iput(inode);
-				return 0;
-			}
+			if (IS_ERR(path))
+				goto out;
 			memset(&newex, 0, sizeof(newex));
 			newex.ee_block = cpu_to_le32(cur);
 			ext4_ext_store_pblock(
@@ -1668,10 +1669,8 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
 			up_write((&EXT4_I(inode)->i_data_sem));
 			ext4_ext_drop_refs(path);
 			kfree(path);
-			if (ret) {
-				iput(inode);
-				return 0;
-			}
+			if (ret)
+				goto out;
 			goto next;
 		}
 
@@ -1684,10 +1683,8 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
 			ret = ext4_ext_replay_update_ex(inode, cur, map.m_len,
 					ext4_ext_is_unwritten(ex),
 					start_pblk + cur - start);
-			if (ret) {
-				iput(inode);
-				return 0;
-			}
+			if (ret)
+				goto out;
 			/*
 			 * Mark the old blocks as free since they aren't used
 			 * anymore. We maintain an array of all the modified
@@ -1707,10 +1704,8 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
 			ext4_ext_is_unwritten(ex), map.m_pblk);
 		ret = ext4_ext_replay_update_ex(inode, cur, map.m_len,
 					ext4_ext_is_unwritten(ex), map.m_pblk);
-		if (ret) {
-			iput(inode);
-			return 0;
-		}
+		if (ret)
+			goto out;
 		/*
 		 * We may have split the extent tree while toggling the state.
 		 * Try to shrink the extent tree now.
@@ -1722,6 +1717,7 @@ next:
 	}
 	ext4_ext_replay_shrink_inode(inode, i_size_read(inode) >>
 					sb->s_blocksize_bits);
+out:
 	iput(inode);
 	return 0;
 }
@@ -1751,6 +1747,8 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
 	}
 
 	ret = ext4_fc_record_modified_inode(sb, inode->i_ino);
+	if (ret)
+		goto out;
 
 	jbd_debug(1, "DEL_RANGE, inode %ld, lblk %d, len %d\n",
 			inode->i_ino, le32_to_cpu(lrange.fc_lblk),
@@ -1760,10 +1758,8 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
 		map.m_len = remaining;
 
 		ret = ext4_map_blocks(NULL, inode, &map, 0);
-		if (ret < 0) {
-			iput(inode);
-			return 0;
-		}
+		if (ret < 0)
+			goto out;
 		if (ret > 0) {
 			remaining -= ret;
 			cur += ret;
@@ -1778,15 +1774,13 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
 	ret = ext4_ext_remove_space(inode, lrange.fc_lblk,
 				lrange.fc_lblk + lrange.fc_len - 1);
 	up_write(&EXT4_I(inode)->i_data_sem);
-	if (ret) {
-		iput(inode);
-		return 0;
-	}
+	if (ret)
+		goto out;
 	ext4_ext_replay_shrink_inode(inode,
 		i_size_read(inode) >> sb->s_blocksize_bits);
 	ext4_mark_inode_dirty(NULL, inode);
+out:
 	iput(inode);
-
 	return 0;
 }
 
-- 
GitLab


From 84b76a509cc3ee713d79da28a5cdfb3841effe45 Mon Sep 17 00:00:00 2001
From: Xin Yin <yinxin.x@bytedance.com>
Date: Wed, 26 Jan 2022 14:31:46 +0800
Subject: [PATCH 3659/4878] ext4: fix incorrect type issue during
 replay_del_range

commit 8fca8a2b0a822f7936130af7299d2fd7f0a66714 upstream.

should not use fast commit log data directly, add le32_to_cpu().

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 0b5b5a62b945 ("ext4: use ext4_ext_remove_space() for fast commit replay delete range")
Cc: stable@kernel.org
Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20220126063146.2302-1-yinxin.x@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/fast_commit.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 5ed7c12c52839..501e60713010e 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1771,8 +1771,9 @@ ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
 	}
 
 	down_write(&EXT4_I(inode)->i_data_sem);
-	ret = ext4_ext_remove_space(inode, lrange.fc_lblk,
-				lrange.fc_lblk + lrange.fc_len - 1);
+	ret = ext4_ext_remove_space(inode, le32_to_cpu(lrange.fc_lblk),
+				le32_to_cpu(lrange.fc_lblk) +
+				le32_to_cpu(lrange.fc_len) - 1);
 	up_write(&EXT4_I(inode)->i_data_sem);
 	if (ret)
 		goto out;
-- 
GitLab


From f1f7d1a22fd73034af73d51086b2fe2981d02028 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Sat, 29 Jan 2022 09:27:04 +0300
Subject: [PATCH 3660/4878] net: dsa: mt7530: make NET_DSA_MT7530 select
 MEDIATEK_GE_PHY
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 4223f86512877b04c932e7203648b37eec931731 upstream.

Make MediaTek MT753x DSA driver enable MediaTek Gigabit PHYs driver to
properly control MT7530 and MT7531 switch PHYs.

A noticeable change is that the behaviour of switchport interfaces going
up-down-up-down is no longer there.

Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220129062703.595-1-arinc.unal@arinc9.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 2451f61a38e4a..9e32ea9c11647 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -36,6 +36,7 @@ config NET_DSA_MT7530
 	tristate "MediaTek MT753x and MT7621 Ethernet switch support"
 	depends on NET_DSA
 	select NET_DSA_TAG_MTK
+	select MEDIATEK_GE_PHY
 	help
 	  This enables support for the MediaTek MT7530, MT7531, and MT7621
 	  Ethernet switch chips.
-- 
GitLab


From 557727313534d9f92e782179372833fd3499f231 Mon Sep 17 00:00:00 2001
From: Waiman Long <longman@redhat.com>
Date: Wed, 2 Feb 2022 22:31:03 -0500
Subject: [PATCH 3661/4878] cgroup/cpuset: Fix "suspicious RCU usage" lockdep
 warning

commit 2bdfd2825c9662463371e6691b1a794e97fa36b4 upstream.

It was found that a "suspicious RCU usage" lockdep warning was issued
with the rcu_read_lock() call in update_sibling_cpumasks().  It is
because the update_cpumasks_hier() function may sleep. So we have
to release the RCU lock, call update_cpumasks_hier() and reacquire
it afterward.

Also add a percpu_rwsem_assert_held() in update_sibling_cpumasks()
instead of stating that in the comment.

Fixes: 4716909cc5c5 ("cpuset: Track cpusets that use parent's effective_cpus")
Signed-off-by: Waiman Long <longman@redhat.com>
Tested-by: Phil Auld <pauld@redhat.com>
Reviewed-by: Phil Auld <pauld@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/cgroup/cpuset.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 7c7758a9e2c24..ef6b3a7f31c17 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1481,10 +1481,15 @@ static void update_sibling_cpumasks(struct cpuset *parent, struct cpuset *cs,
 	struct cpuset *sibling;
 	struct cgroup_subsys_state *pos_css;
 
+	percpu_rwsem_assert_held(&cpuset_rwsem);
+
 	/*
 	 * Check all its siblings and call update_cpumasks_hier()
 	 * if their use_parent_ecpus flag is set in order for them
 	 * to use the right effective_cpus value.
+	 *
+	 * The update_cpumasks_hier() function may sleep. So we have to
+	 * release the RCU read lock before calling it.
 	 */
 	rcu_read_lock();
 	cpuset_for_each_child(sibling, pos_css, parent) {
@@ -1492,8 +1497,13 @@ static void update_sibling_cpumasks(struct cpuset *parent, struct cpuset *cs,
 			continue;
 		if (!sibling->use_parent_ecpus)
 			continue;
+		if (!css_tryget_online(&sibling->css))
+			continue;
 
+		rcu_read_unlock();
 		update_cpumasks_hier(sibling, tmp);
+		rcu_read_lock();
+		css_put(&sibling->css);
 	}
 	rcu_read_unlock();
 }
-- 
GitLab


From 4889d6ee9e483c7221bc94692541632f15ffbd50 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 26 Jan 2022 12:54:54 +0100
Subject: [PATCH 3662/4878] selftests: nft_concat_range: add test for reload
 with no element add/del

commit eda0cf1202acf1ef47f93d8f92d4839213431424 upstream.

Add a specific test for the reload issue fixed with
commit 23c54263efd7cb ("netfilter: nft_set_pipapo: allocate pcpu scratch maps on clone").

Add to set, then flush set content + restore without other add/remove in
the transaction.

On kernels before the fix, this test case fails:
  net,mac with reload    [FAIL]

Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../selftests/netfilter/nft_concat_range.sh   | 72 ++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/netfilter/nft_concat_range.sh b/tools/testing/selftests/netfilter/nft_concat_range.sh
index 5a4938d6dcf25..9313fa32bef13 100755
--- a/tools/testing/selftests/netfilter/nft_concat_range.sh
+++ b/tools/testing/selftests/netfilter/nft_concat_range.sh
@@ -27,7 +27,7 @@ TYPES="net_port port_net net6_port port_proto net6_port_mac net6_port_mac_proto
        net_port_mac_proto_net"
 
 # Reported bugs, also described by TYPE_ variables below
-BUGS="flush_remove_add"
+BUGS="flush_remove_add reload"
 
 # List of possible paths to pktgen script from kernel tree for performance tests
 PKTGEN_SCRIPT_PATHS="
@@ -337,6 +337,23 @@ TYPE_flush_remove_add="
 display		Add two elements, flush, re-add
 "
 
+TYPE_reload="
+display		net,mac with reload
+type_spec	ipv4_addr . ether_addr
+chain_spec	ip daddr . ether saddr
+dst		addr4
+src		mac
+start		1
+count		1
+src_delta	2000
+tools		sendip nc bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	0
+"
+
 # Set template for all tests, types and rules are filled in depending on test
 set_template='
 flush ruleset
@@ -1455,6 +1472,59 @@ test_bug_flush_remove_add() {
 	nft flush ruleset
 }
 
+# - add ranged element, check that packets match it
+# - reload the set, check packets still match
+test_bug_reload() {
+	setup veth send_"${proto}" set || return ${KSELFTEST_SKIP}
+	rstart=${start}
+
+	range_size=1
+	for i in $(seq "${start}" $((start + count))); do
+		end=$((start + range_size))
+
+		# Avoid negative or zero-sized port ranges
+		if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+			start=${end}
+			end=$((end + 1))
+		fi
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		add "$(format)" || return 1
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+
+	# check kernel does allocate pcpu sctrach map
+	# for reload with no elemet add/delete
+	( echo flush set inet filter test ;
+	  nft list set inet filter test ) | nft -f -
+
+	start=${rstart}
+	range_size=1
+
+	for i in $(seq "${start}" $((start + count))); do
+		end=$((start + range_size))
+
+		# Avoid negative or zero-sized port ranges
+		if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+			start=${end}
+			end=$((end + 1))
+		fi
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		for j in $(seq ${start} $((range_size / 2 + 1)) ${end}); do
+			send_match "${j}" $((j + src_delta)) || return 1
+		done
+
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+
+	nft flush ruleset
+}
+
 test_reported_issues() {
 	eval test_bug_"${subtest}"
 }
-- 
GitLab


From fb063a6465f9d17a1bd46a678bc1ffaa84e2f486 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 8 Feb 2022 18:30:41 +0100
Subject: [PATCH 3663/4878] Linux 5.10.99

Link: https://lore.kernel.org/r/20220207103757.232676988@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Slade Watkins <slade@sladewatkins.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 10827bec74d8f..593638785d293 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 98
+SUBLEVEL = 99
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From bbf206b65d572bc1a48ffcbe3f736bcf74c913e3 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 21 May 2021 16:10:29 +0100
Subject: [PATCH 3664/4878] UPSTREAM: firmware: arm_ffa: Add initial FFA bus
 support for device enumeration

The Arm FF for Armv8-A specification has concept of endpoints or
partitions. In the Normal world, a partition could be a VM when
the Virtualization extension is enabled or the kernel itself.

In order to handle multiple partitions, we can create a FFA device for
each such partition on a dedicated FFA bus. Similarly, different drivers
requiring FFA transport can be registered on the same bus. We can match
the device and drivers using UUID. This is mostly for the in-kernel
users with FFA drivers.

Link: https://lore.kernel.org/r/20210521151033.181846-2-sudeep.holla@arm.com
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit e781858488b918e30a6ff28e9eab6058b787e3b3)
Change-Id: I9a3ca8b3d254ecdf0dd3ca45ef87d1be08084b89
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 MAINTAINERS                       |   7 +
 drivers/firmware/Kconfig          |   1 +
 drivers/firmware/Makefile         |   1 +
 drivers/firmware/arm_ffa/Kconfig  |  16 +++
 drivers/firmware/arm_ffa/Makefile |   4 +
 drivers/firmware/arm_ffa/bus.c    | 207 ++++++++++++++++++++++++++++++
 include/linux/arm_ffa.h           |  91 +++++++++++++
 7 files changed, 327 insertions(+)
 create mode 100644 drivers/firmware/arm_ffa/Kconfig
 create mode 100644 drivers/firmware/arm_ffa/Makefile
 create mode 100644 drivers/firmware/arm_ffa/bus.c
 create mode 100644 include/linux/arm_ffa.h

diff --git a/MAINTAINERS b/MAINTAINERS
index ca7700bf40af1..3dc294427f655 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6848,6 +6848,13 @@ F:	include/linux/firewire.h
 F:	include/uapi/linux/firewire*.h
 F:	tools/firewire/
 
+FIRMWARE FRAMEWORK FOR ARMV8-A
+M:	Sudeep Holla <sudeep.holla@arm.com>
+L:	linux-arm-kernel@lists.infradead.org
+S:	Maintained
+F:	drivers/firmware/arm_ffa/
+F:	include/linux/arm_ffa.h
+
 FIRMWARE LOADER (request_firmware)
 M:	Luis Chamberlain <mcgrof@kernel.org>
 L:	linux-kernel@vger.kernel.org
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 359f6516b5ac1..9a7fe24dfd082 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -296,6 +296,7 @@ config TURRIS_MOX_RWTM
 	  other manufacturing data and also utilize the Entropy Bit Generator
 	  for hardware random number generation.
 
+source "drivers/firmware/arm_ffa/Kconfig"
 source "drivers/firmware/broadcom/Kconfig"
 source "drivers/firmware/google/Kconfig"
 source "drivers/firmware/efi/Kconfig"
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 523173cbff335..3c2af2e98def8 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_TI_SCI_PROTOCOL)	+= ti_sci.o
 obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o
 obj-$(CONFIG_TURRIS_MOX_RWTM)	+= turris-mox-rwtm.o
 
+obj-y				+= arm_ffa/
 obj-y				+= arm_scmi/
 obj-y				+= broadcom/
 obj-y				+= meson/
diff --git a/drivers/firmware/arm_ffa/Kconfig b/drivers/firmware/arm_ffa/Kconfig
new file mode 100644
index 0000000000000..261a3660650ae
--- /dev/null
+++ b/drivers/firmware/arm_ffa/Kconfig
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config ARM_FFA_TRANSPORT
+	tristate "Arm Firmware Framework for Armv8-A"
+	depends on OF
+	depends on ARM64
+	default n
+	help
+	  This Firmware Framework(FF) for Arm A-profile processors describes
+	  interfaces that standardize communication between the various
+	  software images which includes communication between images in
+	  the Secure world and Normal world. It also leverages the
+	  virtualization extension to isolate software images provided
+	  by an ecosystem of vendors from each other.
+
+	  This driver provides interface for all the client drivers making
+	  use of the features offered by ARM FF-A.
diff --git a/drivers/firmware/arm_ffa/Makefile b/drivers/firmware/arm_ffa/Makefile
new file mode 100644
index 0000000000000..bfe4323a87847
--- /dev/null
+++ b/drivers/firmware/arm_ffa/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+ffa-bus-y = bus.o
+ffa-module-objs := $(ffa-bus-y)
+obj-$(CONFIG_ARM_FFA_TRANSPORT) = ffa-module.o
diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
new file mode 100644
index 0000000000000..a17874bed9465
--- /dev/null
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Ltd.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/arm_ffa.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+static int ffa_device_match(struct device *dev, struct device_driver *drv)
+{
+	const struct ffa_device_id *id_table;
+	struct ffa_device *ffa_dev;
+
+	id_table = to_ffa_driver(drv)->id_table;
+	ffa_dev = to_ffa_dev(dev);
+
+	while (!uuid_is_null(&id_table->uuid)) {
+		if (uuid_equal(&ffa_dev->uuid, &id_table->uuid))
+			return 1;
+		id_table++;
+	}
+
+	return 0;
+}
+
+static int ffa_device_probe(struct device *dev)
+{
+	struct ffa_driver *ffa_drv = to_ffa_driver(dev->driver);
+	struct ffa_device *ffa_dev = to_ffa_dev(dev);
+
+	if (!ffa_device_match(dev, dev->driver))
+		return -ENODEV;
+
+	return ffa_drv->probe(ffa_dev);
+}
+
+static int ffa_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct ffa_device *ffa_dev = to_ffa_dev(dev);
+
+	return add_uevent_var(env, "MODALIAS=arm_ffa:%04x:%pUb",
+			      ffa_dev->vm_id, &ffa_dev->uuid);
+}
+
+static ssize_t partition_id_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	struct ffa_device *ffa_dev = to_ffa_dev(dev);
+
+	return sprintf(buf, "0x%04x\n", ffa_dev->vm_id);
+}
+static DEVICE_ATTR_RO(partition_id);
+
+static ssize_t uuid_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct ffa_device *ffa_dev = to_ffa_dev(dev);
+
+	return sprintf(buf, "%pUb\n", &ffa_dev->uuid);
+}
+static DEVICE_ATTR_RO(uuid);
+
+static struct attribute *ffa_device_attributes_attrs[] = {
+	&dev_attr_partition_id.attr,
+	&dev_attr_uuid.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(ffa_device_attributes);
+
+struct bus_type ffa_bus_type = {
+	.name		= "arm_ffa",
+	.match		= ffa_device_match,
+	.probe		= ffa_device_probe,
+	.uevent		= ffa_device_uevent,
+	.dev_groups	= ffa_device_attributes_groups,
+};
+EXPORT_SYMBOL_GPL(ffa_bus_type);
+
+int ffa_driver_register(struct ffa_driver *driver, struct module *owner,
+			const char *mod_name)
+{
+	int ret;
+
+	driver->driver.bus = &ffa_bus_type;
+	driver->driver.name = driver->name;
+	driver->driver.owner = owner;
+	driver->driver.mod_name = mod_name;
+
+	ret = driver_register(&driver->driver);
+	if (!ret)
+		pr_debug("registered new ffa driver %s\n", driver->name);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ffa_driver_register);
+
+void ffa_driver_unregister(struct ffa_driver *driver)
+{
+	driver_unregister(&driver->driver);
+}
+EXPORT_SYMBOL_GPL(ffa_driver_unregister);
+
+static void ffa_release_device(struct device *dev)
+{
+	struct ffa_device *ffa_dev = to_ffa_dev(dev);
+
+	kfree(ffa_dev);
+}
+
+static int __ffa_devices_unregister(struct device *dev, void *data)
+{
+	ffa_release_device(dev);
+
+	return 0;
+}
+
+static void ffa_devices_unregister(void)
+{
+	bus_for_each_dev(&ffa_bus_type, NULL, NULL,
+			 __ffa_devices_unregister);
+}
+
+bool ffa_device_is_valid(struct ffa_device *ffa_dev)
+{
+	bool valid = false;
+	struct device *dev = NULL;
+	struct ffa_device *tmp_dev;
+
+	do {
+		dev = bus_find_next_device(&ffa_bus_type, dev);
+		tmp_dev = to_ffa_dev(dev);
+		if (tmp_dev == ffa_dev) {
+			valid = true;
+			break;
+		}
+		put_device(dev);
+	} while (dev);
+
+	put_device(dev);
+
+	return valid;
+}
+
+struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id)
+{
+	int ret;
+	struct device *dev;
+	struct ffa_device *ffa_dev;
+
+	ffa_dev = kzalloc(sizeof(*ffa_dev), GFP_KERNEL);
+	if (!ffa_dev)
+		return NULL;
+
+	dev = &ffa_dev->dev;
+	dev->bus = &ffa_bus_type;
+	dev->release = ffa_release_device;
+	dev_set_name(&ffa_dev->dev, "arm-ffa-%04x", vm_id);
+
+	ffa_dev->vm_id = vm_id;
+	uuid_copy(&ffa_dev->uuid, uuid);
+
+	ret = device_register(&ffa_dev->dev);
+	if (ret) {
+		dev_err(dev, "unable to register device %s err=%d\n",
+			dev_name(dev), ret);
+		put_device(dev);
+		return NULL;
+	}
+
+	return ffa_dev;
+}
+EXPORT_SYMBOL_GPL(ffa_device_register);
+
+void ffa_device_unregister(struct ffa_device *ffa_dev)
+{
+	if (!ffa_dev)
+		return;
+
+	device_unregister(&ffa_dev->dev);
+}
+EXPORT_SYMBOL_GPL(ffa_device_unregister);
+
+static int __init arm_ffa_bus_init(void)
+{
+	return bus_register(&ffa_bus_type);
+}
+module_init(arm_ffa_bus_init);
+
+static void __exit arm_ffa_bus_exit(void)
+{
+	ffa_devices_unregister();
+	bus_unregister(&ffa_bus_type);
+}
+
+module_exit(arm_ffa_bus_exit);
+
+MODULE_ALIAS("arm-ffa-bus");
+MODULE_AUTHOR("Sudeep Holla <sudeep.holla@arm.com>");
+MODULE_DESCRIPTION("Arm FF-A bus driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
new file mode 100644
index 0000000000000..331ff62c9873b
--- /dev/null
+++ b/include/linux/arm_ffa.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 ARM Ltd.
+ */
+
+#ifndef _LINUX_ARM_FFA_H
+#define _LINUX_ARM_FFA_H
+
+#include <linux/cdev.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/uuid.h>
+
+/* FFA Bus/Device/Driver related */
+struct ffa_device {
+	int vm_id;
+	uuid_t uuid;
+	struct device dev;
+};
+
+#define to_ffa_dev(d) container_of(d, struct ffa_device, dev)
+
+struct ffa_device_id {
+	uuid_t uuid;
+};
+
+struct ffa_driver {
+	const char *name;
+	int (*probe)(struct ffa_device *sdev);
+	void (*remove)(struct ffa_device *sdev);
+	const struct ffa_device_id *id_table;
+
+	struct device_driver driver;
+};
+
+#define to_ffa_driver(d) container_of(d, struct ffa_driver, driver)
+
+static inline void ffa_dev_set_drvdata(struct ffa_device *fdev, void *data)
+{
+	fdev->dev.driver_data = data;
+}
+
+#if IS_REACHABLE(CONFIG_ARM_FFA_TRANSPORT)
+struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id);
+void ffa_device_unregister(struct ffa_device *ffa_dev);
+int ffa_driver_register(struct ffa_driver *driver, struct module *owner,
+			const char *mod_name);
+void ffa_driver_unregister(struct ffa_driver *driver);
+bool ffa_device_is_valid(struct ffa_device *ffa_dev);
+
+#else
+static inline
+struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id)
+{
+	return NULL;
+}
+
+static inline void ffa_device_unregister(struct ffa_device *dev) {}
+
+static inline int
+ffa_driver_register(struct ffa_driver *driver, struct module *owner,
+		    const char *mod_name)
+{
+	return -EINVAL;
+}
+
+static inline void ffa_driver_unregister(struct ffa_driver *driver) {}
+
+static inline
+bool ffa_device_is_valid(struct ffa_device *ffa_dev) { return false; }
+
+#endif /* CONFIG_ARM_FFA_TRANSPORT */
+
+#define ffa_register(driver) \
+	ffa_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)
+#define ffa_unregister(driver) \
+	ffa_driver_unregister(driver)
+
+/**
+ * module_ffa_driver() - Helper macro for registering a psa_ffa driver
+ * @__ffa_driver: ffa_driver structure
+ *
+ * Helper macro for psa_ffa drivers to set up proper module init / exit
+ * functions.  Replaces module_init() and module_exit() and keeps people from
+ * printing pointless things to the kernel log when their driver is loaded.
+ */
+#define module_ffa_driver(__ffa_driver)	\
+	module_driver(__ffa_driver, ffa_register, ffa_unregister)
+
+#endif /* _LINUX_ARM_FFA_H */
-- 
GitLab


From 363138dd2d204ff8b1b1125ea5827355b75c0f89 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 21 May 2021 16:10:30 +0100
Subject: [PATCH 3665/4878] UPSTREAM: firmware: arm_ffa: Add initial Arm FFA
 driver support

This just add a basic driver that sets up the transport(e.g. SMCCC),
checks the FFA version implemented, get the partition ID for self and
sets up the Tx/Rx buffers for communication.

Link: https://lore.kernel.org/r/20210521151033.181846-3-sudeep.holla@arm.com
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 3bbfe9871005f38df2955b2e125933edf1d2feef)
Change-Id: Ia42f16e6ba8d6cea06421ba4db9f9778b8fdc266
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/Makefile |   3 +-
 drivers/firmware/arm_ffa/bus.c    |  14 +-
 drivers/firmware/arm_ffa/common.h |  24 +++
 drivers/firmware/arm_ffa/driver.c | 311 ++++++++++++++++++++++++++++++
 4 files changed, 341 insertions(+), 11 deletions(-)
 create mode 100644 drivers/firmware/arm_ffa/common.h
 create mode 100644 drivers/firmware/arm_ffa/driver.c

diff --git a/drivers/firmware/arm_ffa/Makefile b/drivers/firmware/arm_ffa/Makefile
index bfe4323a87847..82d0d35c53248 100644
--- a/drivers/firmware/arm_ffa/Makefile
+++ b/drivers/firmware/arm_ffa/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 ffa-bus-y = bus.o
-ffa-module-objs := $(ffa-bus-y)
+ffa-driver-y = driver.o
+ffa-module-objs := $(ffa-bus-y) $(ffa-driver-y)
 obj-$(CONFIG_ARM_FFA_TRANSPORT) = ffa-module.o
diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index a17874bed9465..ae1eada5dc0c9 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -13,6 +13,8 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
+#include "common.h"
+
 static int ffa_device_match(struct device *dev, struct device_driver *drv)
 {
 	const struct ffa_device_id *id_table;
@@ -187,21 +189,13 @@ void ffa_device_unregister(struct ffa_device *ffa_dev)
 }
 EXPORT_SYMBOL_GPL(ffa_device_unregister);
 
-static int __init arm_ffa_bus_init(void)
+int arm_ffa_bus_init(void)
 {
 	return bus_register(&ffa_bus_type);
 }
-module_init(arm_ffa_bus_init);
 
-static void __exit arm_ffa_bus_exit(void)
+void arm_ffa_bus_exit(void)
 {
 	ffa_devices_unregister();
 	bus_unregister(&ffa_bus_type);
 }
-
-module_exit(arm_ffa_bus_exit);
-
-MODULE_ALIAS("arm-ffa-bus");
-MODULE_AUTHOR("Sudeep Holla <sudeep.holla@arm.com>");
-MODULE_DESCRIPTION("Arm FF-A bus driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/firmware/arm_ffa/common.h b/drivers/firmware/arm_ffa/common.h
new file mode 100644
index 0000000000000..2d3a32f67d5de
--- /dev/null
+++ b/drivers/firmware/arm_ffa/common.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2021 ARM Ltd.
+ */
+
+#ifndef _FFA_COMMON_H
+#define _FFA_COMMON_H
+
+#include <linux/arm-smccc.h>
+#include <linux/err.h>
+
+typedef struct arm_smccc_1_2_regs ffa_value_t;
+
+typedef void (ffa_fn)(ffa_value_t, ffa_value_t *);
+
+int arm_ffa_bus_init(void);
+void arm_ffa_bus_exit(void);
+
+static inline int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
+{
+	return -EOPNOTSUPP;
+}
+
+#endif /* _FFA_COMMON_H */
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
new file mode 100644
index 0000000000000..4846f079dca07
--- /dev/null
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Arm Firmware Framework for ARMv8-A(FFA) interface driver
+ *
+ * The Arm FFA specification[1] describes a software architecture to
+ * leverages the virtualization extension to isolate software images
+ * provided by an ecosystem of vendors from each other and describes
+ * interfaces that standardize communication between the various software
+ * images including communication between images in the Secure world and
+ * Normal world. Any Hypervisor could use the FFA interfaces to enable
+ * communication between VMs it manages.
+ *
+ * The Hypervisor a.k.a Partition managers in FFA terminology can assign
+ * system resources(Memory regions, Devices, CPU cycles) to the partitions
+ * and manage isolation amongst them.
+ *
+ * [1] https://developer.arm.com/docs/den0077/latest
+ *
+ * Copyright (C) 2021 ARM Ltd.
+ */
+
+#define DRIVER_NAME "ARM FF-A"
+#define pr_fmt(fmt) DRIVER_NAME ": " fmt
+
+#include <linux/arm_ffa.h>
+#include <linux/bitfield.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "common.h"
+
+#define FFA_DRIVER_VERSION	FFA_VERSION_1_0
+
+#define FFA_SMC(calling_convention, func_num)				\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, (calling_convention),	\
+			   ARM_SMCCC_OWNER_STANDARD, (func_num))
+
+#define FFA_SMC_32(func_num)	FFA_SMC(ARM_SMCCC_SMC_32, (func_num))
+#define FFA_SMC_64(func_num)	FFA_SMC(ARM_SMCCC_SMC_64, (func_num))
+
+#define FFA_ERROR			FFA_SMC_32(0x60)
+#define FFA_SUCCESS			FFA_SMC_32(0x61)
+#define FFA_INTERRUPT			FFA_SMC_32(0x62)
+#define FFA_VERSION			FFA_SMC_32(0x63)
+#define FFA_FEATURES			FFA_SMC_32(0x64)
+#define FFA_RX_RELEASE			FFA_SMC_32(0x65)
+#define FFA_RXTX_MAP			FFA_SMC_32(0x66)
+#define FFA_FN64_RXTX_MAP		FFA_SMC_64(0x66)
+#define FFA_RXTX_UNMAP			FFA_SMC_32(0x67)
+#define FFA_PARTITION_INFO_GET		FFA_SMC_32(0x68)
+#define FFA_ID_GET			FFA_SMC_32(0x69)
+#define FFA_MSG_POLL			FFA_SMC_32(0x6A)
+#define FFA_MSG_WAIT			FFA_SMC_32(0x6B)
+#define FFA_YIELD			FFA_SMC_32(0x6C)
+#define FFA_RUN				FFA_SMC_32(0x6D)
+#define FFA_MSG_SEND			FFA_SMC_32(0x6E)
+#define FFA_MSG_SEND_DIRECT_REQ		FFA_SMC_32(0x6F)
+#define FFA_FN64_MSG_SEND_DIRECT_REQ	FFA_SMC_64(0x6F)
+#define FFA_MSG_SEND_DIRECT_RESP	FFA_SMC_32(0x70)
+#define FFA_FN64_MSG_SEND_DIRECT_RESP	FFA_SMC_64(0x70)
+#define FFA_MEM_DONATE			FFA_SMC_32(0x71)
+#define FFA_FN64_MEM_DONATE		FFA_SMC_64(0x71)
+#define FFA_MEM_LEND			FFA_SMC_32(0x72)
+#define FFA_FN64_MEM_LEND		FFA_SMC_64(0x72)
+#define FFA_MEM_SHARE			FFA_SMC_32(0x73)
+#define FFA_FN64_MEM_SHARE		FFA_SMC_64(0x73)
+#define FFA_MEM_RETRIEVE_REQ		FFA_SMC_32(0x74)
+#define FFA_FN64_MEM_RETRIEVE_REQ	FFA_SMC_64(0x74)
+#define FFA_MEM_RETRIEVE_RESP		FFA_SMC_32(0x75)
+#define FFA_MEM_RELINQUISH		FFA_SMC_32(0x76)
+#define FFA_MEM_RECLAIM			FFA_SMC_32(0x77)
+#define FFA_MEM_OP_PAUSE		FFA_SMC_32(0x78)
+#define FFA_MEM_OP_RESUME		FFA_SMC_32(0x79)
+#define FFA_MEM_FRAG_RX			FFA_SMC_32(0x7A)
+#define FFA_MEM_FRAG_TX			FFA_SMC_32(0x7B)
+#define FFA_NORMAL_WORLD_RESUME		FFA_SMC_32(0x7C)
+
+/*
+ * For some calls it is necessary to use SMC64 to pass or return 64-bit values.
+ * For such calls FFA_FN_NATIVE(name) will choose the appropriate
+ * (native-width) function ID.
+ */
+#ifdef CONFIG_64BIT
+#define FFA_FN_NATIVE(name)	FFA_FN64_##name
+#else
+#define FFA_FN_NATIVE(name)	FFA_##name
+#endif
+
+/* FFA error codes. */
+#define FFA_RET_SUCCESS            (0)
+#define FFA_RET_NOT_SUPPORTED      (-1)
+#define FFA_RET_INVALID_PARAMETERS (-2)
+#define FFA_RET_NO_MEMORY          (-3)
+#define FFA_RET_BUSY               (-4)
+#define FFA_RET_INTERRUPTED        (-5)
+#define FFA_RET_DENIED             (-6)
+#define FFA_RET_RETRY              (-7)
+#define FFA_RET_ABORTED            (-8)
+
+#define MAJOR_VERSION_MASK	GENMASK(30, 16)
+#define MINOR_VERSION_MASK	GENMASK(15, 0)
+#define MAJOR_VERSION(x)	((u16)(FIELD_GET(MAJOR_VERSION_MASK, (x))))
+#define MINOR_VERSION(x)	((u16)(FIELD_GET(MINOR_VERSION_MASK, (x))))
+#define PACK_VERSION_INFO(major, minor)			\
+	(FIELD_PREP(MAJOR_VERSION_MASK, (major)) |	\
+	 FIELD_PREP(MINOR_VERSION_MASK, (minor)))
+#define FFA_VERSION_1_0		PACK_VERSION_INFO(1, 0)
+#define FFA_MIN_VERSION		FFA_VERSION_1_0
+
+#define SENDER_ID_MASK		GENMASK(31, 16)
+#define RECEIVER_ID_MASK	GENMASK(15, 0)
+#define SENDER_ID(x)		((u16)(FIELD_GET(SENDER_ID_MASK, (x))))
+#define RECEIVER_ID(x)		((u16)(FIELD_GET(RECEIVER_ID_MASK, (x))))
+#define PACK_TARGET_INFO(s, r)		\
+	(FIELD_PREP(SENDER_ID_MASK, (s)) | FIELD_PREP(RECEIVER_ID_MASK, (r)))
+
+/**
+ * FF-A specification mentions explicitly about '4K pages'. This should
+ * not be confused with the kernel PAGE_SIZE, which is the translation
+ * granule kernel is configured and may be one among 4K, 16K and 64K.
+ */
+#define FFA_PAGE_SIZE		SZ_4K
+/*
+ * Keeping RX TX buffer size as 4K for now
+ * 64K may be preferred to keep it min a page in 64K PAGE_SIZE config
+ */
+#define RXTX_BUFFER_SIZE	SZ_4K
+
+static ffa_fn *invoke_ffa_fn;
+
+static const int ffa_linux_errmap[] = {
+	/* better than switch case as long as return value is continuous */
+	0,		/* FFA_RET_SUCCESS */
+	-EOPNOTSUPP,	/* FFA_RET_NOT_SUPPORTED */
+	-EINVAL,	/* FFA_RET_INVALID_PARAMETERS */
+	-ENOMEM,	/* FFA_RET_NO_MEMORY */
+	-EBUSY,		/* FFA_RET_BUSY */
+	-EINTR,		/* FFA_RET_INTERRUPTED */
+	-EACCES,	/* FFA_RET_DENIED */
+	-EAGAIN,	/* FFA_RET_RETRY */
+	-ECANCELED,	/* FFA_RET_ABORTED */
+};
+
+static inline int ffa_to_linux_errno(int errno)
+{
+	if (errno < FFA_RET_SUCCESS && errno >= -ARRAY_SIZE(ffa_linux_errmap))
+		return ffa_linux_errmap[-errno];
+	return -EINVAL;
+}
+
+struct ffa_drv_info {
+	u32 version;
+	u16 vm_id;
+	struct mutex rx_lock; /* lock to protect Rx buffer */
+	struct mutex tx_lock; /* lock to protect Tx buffer */
+	void *rx_buffer;
+	void *tx_buffer;
+};
+
+static struct ffa_drv_info *drv_info;
+
+static int ffa_version_check(u32 *version)
+{
+	ffa_value_t ver;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_VERSION, .a1 = FFA_DRIVER_VERSION,
+		      }, &ver);
+
+	if (ver.a0 == FFA_RET_NOT_SUPPORTED) {
+		pr_info("FFA_VERSION returned not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (ver.a0 < FFA_MIN_VERSION || ver.a0 > FFA_DRIVER_VERSION) {
+		pr_err("Incompatible version %d.%d found\n",
+		       MAJOR_VERSION(ver.a0), MINOR_VERSION(ver.a0));
+		return -EINVAL;
+	}
+
+	*version = ver.a0;
+	pr_info("Version %d.%d found\n", MAJOR_VERSION(ver.a0),
+		MINOR_VERSION(ver.a0));
+	return 0;
+}
+
+static int ffa_rxtx_map(phys_addr_t tx_buf, phys_addr_t rx_buf, u32 pg_cnt)
+{
+	ffa_value_t ret;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_FN_NATIVE(RXTX_MAP),
+		      .a1 = tx_buf, .a2 = rx_buf, .a3 = pg_cnt,
+		      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	return 0;
+}
+
+static int ffa_rxtx_unmap(u16 vm_id)
+{
+	ffa_value_t ret;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_RXTX_UNMAP, .a1 = PACK_TARGET_INFO(vm_id, 0),
+		      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	return 0;
+}
+
+#define VM_ID_MASK	GENMASK(15, 0)
+static int ffa_id_get(u16 *vm_id)
+{
+	ffa_value_t id;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_ID_GET,
+		      }, &id);
+
+	if (id.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)id.a2);
+
+	*vm_id = FIELD_GET(VM_ID_MASK, (id.a2));
+
+	return 0;
+}
+
+static int __init ffa_init(void)
+{
+	int ret;
+
+	ret = ffa_transport_init(&invoke_ffa_fn);
+	if (ret)
+		return ret;
+
+	ret = arm_ffa_bus_init();
+	if (ret)
+		return ret;
+
+	drv_info = kzalloc(sizeof(*drv_info), GFP_KERNEL);
+	if (!drv_info) {
+		ret = -ENOMEM;
+		goto ffa_bus_exit;
+	}
+
+	ret = ffa_version_check(&drv_info->version);
+	if (ret)
+		goto free_drv_info;
+
+	if (ffa_id_get(&drv_info->vm_id)) {
+		pr_err("failed to obtain VM id for self\n");
+		ret = -ENODEV;
+		goto free_drv_info;
+	}
+
+	drv_info->rx_buffer = alloc_pages_exact(RXTX_BUFFER_SIZE, GFP_KERNEL);
+	if (!drv_info->rx_buffer) {
+		ret = -ENOMEM;
+		goto free_pages;
+	}
+
+	drv_info->tx_buffer = alloc_pages_exact(RXTX_BUFFER_SIZE, GFP_KERNEL);
+	if (!drv_info->tx_buffer) {
+		ret = -ENOMEM;
+		goto free_pages;
+	}
+
+	ret = ffa_rxtx_map(virt_to_phys(drv_info->tx_buffer),
+			   virt_to_phys(drv_info->rx_buffer),
+			   RXTX_BUFFER_SIZE / FFA_PAGE_SIZE);
+	if (ret) {
+		pr_err("failed to register FFA RxTx buffers\n");
+		goto free_pages;
+	}
+
+	mutex_init(&drv_info->rx_lock);
+	mutex_init(&drv_info->tx_lock);
+
+	return 0;
+free_pages:
+	if (drv_info->tx_buffer)
+		free_pages_exact(drv_info->tx_buffer, RXTX_BUFFER_SIZE);
+	free_pages_exact(drv_info->rx_buffer, RXTX_BUFFER_SIZE);
+free_drv_info:
+	kfree(drv_info);
+ffa_bus_exit:
+	arm_ffa_bus_exit();
+	return ret;
+}
+subsys_initcall(ffa_init);
+
+static void __exit ffa_exit(void)
+{
+	ffa_rxtx_unmap(drv_info->vm_id);
+	free_pages_exact(drv_info->tx_buffer, RXTX_BUFFER_SIZE);
+	free_pages_exact(drv_info->rx_buffer, RXTX_BUFFER_SIZE);
+	kfree(drv_info);
+	arm_ffa_bus_exit();
+}
+module_exit(ffa_exit);
+
+MODULE_ALIAS("arm-ffa");
+MODULE_AUTHOR("Sudeep Holla <sudeep.holla@arm.com>");
+MODULE_DESCRIPTION("Arm FF-A interface driver");
+MODULE_LICENSE("GPL v2");
-- 
GitLab


From 65d4587d97822a921bcf893c9c60f6cbcfe46a1e Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 21 May 2021 16:10:31 +0100
Subject: [PATCH 3666/4878] UPSTREAM: firmware: arm_ffa: Add support for SMCCC
 as transport to FFA driver

There are requests to keep the transport separate in order to allow
other possible transports like virtio. So let us keep the SMCCC transport
specific routines abstracted.

It is kept simple for now. Once we add another transport, we can develop
better abstraction.

Link: https://lore.kernel.org/r/20210521151033.181846-4-sudeep.holla@arm.com
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 714be77e976a4b013b935b3223b2ef68856084d0)
Change-Id: Ifcc53535ca4cf16a486634efac5cab4f31e82d1b
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/Kconfig  |  5 ++++
 drivers/firmware/arm_ffa/Makefile |  3 ++-
 drivers/firmware/arm_ffa/common.h |  4 ++++
 drivers/firmware/arm_ffa/smccc.c  | 39 +++++++++++++++++++++++++++++++
 4 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 drivers/firmware/arm_ffa/smccc.c

diff --git a/drivers/firmware/arm_ffa/Kconfig b/drivers/firmware/arm_ffa/Kconfig
index 261a3660650ae..5e3ae5cf82e8e 100644
--- a/drivers/firmware/arm_ffa/Kconfig
+++ b/drivers/firmware/arm_ffa/Kconfig
@@ -14,3 +14,8 @@ config ARM_FFA_TRANSPORT
 
 	  This driver provides interface for all the client drivers making
 	  use of the features offered by ARM FF-A.
+
+config ARM_FFA_SMCCC
+	bool
+	default ARM_FFA_TRANSPORT
+	depends on ARM64 && HAVE_ARM_SMCCC_DISCOVERY
diff --git a/drivers/firmware/arm_ffa/Makefile b/drivers/firmware/arm_ffa/Makefile
index 82d0d35c53248..9d9f375232003 100644
--- a/drivers/firmware/arm_ffa/Makefile
+++ b/drivers/firmware/arm_ffa/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 ffa-bus-y = bus.o
 ffa-driver-y = driver.o
-ffa-module-objs := $(ffa-bus-y) $(ffa-driver-y)
+ffa-transport-$(CONFIG_ARM_FFA_SMCCC) += smccc.o
+ffa-module-objs := $(ffa-bus-y) $(ffa-driver-y) $(ffa-transport-y)
 obj-$(CONFIG_ARM_FFA_TRANSPORT) = ffa-module.o
diff --git a/drivers/firmware/arm_ffa/common.h b/drivers/firmware/arm_ffa/common.h
index 2d3a32f67d5de..f24754a59f476 100644
--- a/drivers/firmware/arm_ffa/common.h
+++ b/drivers/firmware/arm_ffa/common.h
@@ -16,9 +16,13 @@ typedef void (ffa_fn)(ffa_value_t, ffa_value_t *);
 int arm_ffa_bus_init(void);
 void arm_ffa_bus_exit(void);
 
+#ifdef CONFIG_ARM_FFA_SMCCC
+int __init ffa_transport_init(ffa_fn **invoke_ffa_fn);
+#else
 static inline int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
 {
 	return -EOPNOTSUPP;
 }
+#endif
 
 #endif /* _FFA_COMMON_H */
diff --git a/drivers/firmware/arm_ffa/smccc.c b/drivers/firmware/arm_ffa/smccc.c
new file mode 100644
index 0000000000000..4d85bfff0a4e6
--- /dev/null
+++ b/drivers/firmware/arm_ffa/smccc.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 ARM Ltd.
+ */
+
+#include <linux/printk.h>
+
+#include "common.h"
+
+static void __arm_ffa_fn_smc(ffa_value_t args, ffa_value_t *res)
+{
+	arm_smccc_1_2_smc(&args, res);
+}
+
+static void __arm_ffa_fn_hvc(ffa_value_t args, ffa_value_t *res)
+{
+	arm_smccc_1_2_hvc(&args, res);
+}
+
+int __init ffa_transport_init(ffa_fn **invoke_ffa_fn)
+{
+	enum arm_smccc_conduit conduit;
+
+	if (arm_smccc_get_version() < ARM_SMCCC_VERSION_1_2)
+		return -EOPNOTSUPP;
+
+	conduit = arm_smccc_1_1_get_conduit();
+	if (conduit == SMCCC_CONDUIT_NONE) {
+		pr_err("%s: invalid SMCCC conduit\n", __func__);
+		return -EOPNOTSUPP;
+	}
+
+	if (conduit == SMCCC_CONDUIT_SMC)
+		*invoke_ffa_fn = __arm_ffa_fn_smc;
+	else
+		*invoke_ffa_fn = __arm_ffa_fn_hvc;
+
+	return 0;
+}
-- 
GitLab


From 60d19549ea55305bc2e3438e3408f07d53734235 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 21 May 2021 16:10:32 +0100
Subject: [PATCH 3667/4878] UPSTREAM: firmware: arm_ffa: Setup in-kernel users
 of FFA partitions

Parse the FFA nodes from the device-tree and register all the partitions
whose services will be used in the kernel.

In order to also enable in-kernel users of FFA interface, let us add
simple set of operations for such devices.

The in-kernel users are registered without the character device interface.

Link: https://lore.kernel.org/r/20210521151033.181846-5-sudeep.holla@arm.com
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit d0c0bce831223b08e5bade2cefc93c3ddb790796)
Change-Id: I05ad9200f2821c48e617ebdfc65f20651c3c1b35
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/bus.c    |   9 ++
 drivers/firmware/arm_ffa/common.h |   3 +
 drivers/firmware/arm_ffa/driver.c | 221 ++++++++++++++++++++++++++++++
 include/linux/arm_ffa.h           |  39 +++++-
 4 files changed, 271 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index ae1eada5dc0c9..83166e02b1918 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -24,6 +24,15 @@ static int ffa_device_match(struct device *dev, struct device_driver *drv)
 	ffa_dev = to_ffa_dev(dev);
 
 	while (!uuid_is_null(&id_table->uuid)) {
+		/*
+		 * FF-A v1.0 doesn't provide discovery of UUIDs, just the
+		 * partition IDs, so fetch the partitions IDs for this
+		 * id_table UUID and assign the UUID to the device if the
+		 * partition ID matches
+		 */
+		if (uuid_is_null(&ffa_dev->uuid))
+			ffa_device_match_uuid(ffa_dev, &id_table->uuid);
+
 		if (uuid_equal(&ffa_dev->uuid, &id_table->uuid))
 			return 1;
 		id_table++;
diff --git a/drivers/firmware/arm_ffa/common.h b/drivers/firmware/arm_ffa/common.h
index f24754a59f476..d6eccf1fd3f68 100644
--- a/drivers/firmware/arm_ffa/common.h
+++ b/drivers/firmware/arm_ffa/common.h
@@ -6,6 +6,7 @@
 #ifndef _FFA_COMMON_H
 #define _FFA_COMMON_H
 
+#include <linux/arm_ffa.h>
 #include <linux/arm-smccc.h>
 #include <linux/err.h>
 
@@ -15,6 +16,8 @@ typedef void (ffa_fn)(ffa_value_t, ffa_value_t *);
 
 int arm_ffa_bus_init(void);
 void arm_ffa_bus_exit(void);
+bool ffa_device_is_valid(struct ffa_device *ffa_dev);
+void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid);
 
 #ifdef CONFIG_ARM_FFA_SMCCC
 int __init ffa_transport_init(ffa_fn **invoke_ffa_fn);
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 4846f079dca07..85b9bbdbeabe5 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -24,9 +24,12 @@
 
 #include <linux/arm_ffa.h>
 #include <linux/bitfield.h>
+#include <linux/device.h>
 #include <linux/io.h>
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/uuid.h>
 
 #include "common.h"
 
@@ -185,6 +188,22 @@ static int ffa_version_check(u32 *version)
 	return 0;
 }
 
+static int ffa_rx_release(void)
+{
+	ffa_value_t ret;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_RX_RELEASE,
+		      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	/* check for ret.a0 == FFA_RX_RELEASE ? */
+
+	return 0;
+}
+
 static int ffa_rxtx_map(phys_addr_t tx_buf, phys_addr_t rx_buf, u32 pg_cnt)
 {
 	ffa_value_t ret;
@@ -214,6 +233,65 @@ static int ffa_rxtx_unmap(u16 vm_id)
 	return 0;
 }
 
+/* buffer must be sizeof(struct ffa_partition_info) * num_partitions */
+static int
+__ffa_partition_info_get(u32 uuid0, u32 uuid1, u32 uuid2, u32 uuid3,
+			 struct ffa_partition_info *buffer, int num_partitions)
+{
+	int count;
+	ffa_value_t partition_info;
+
+	mutex_lock(&drv_info->rx_lock);
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_PARTITION_INFO_GET,
+		      .a1 = uuid0, .a2 = uuid1, .a3 = uuid2, .a4 = uuid3,
+		      }, &partition_info);
+
+	if (partition_info.a0 == FFA_ERROR) {
+		mutex_unlock(&drv_info->rx_lock);
+		return ffa_to_linux_errno((int)partition_info.a2);
+	}
+
+	count = partition_info.a2;
+
+	if (buffer && count <= num_partitions)
+		memcpy(buffer, drv_info->rx_buffer, sizeof(*buffer) * count);
+
+	ffa_rx_release();
+
+	mutex_unlock(&drv_info->rx_lock);
+
+	return count;
+}
+
+/* buffer is allocated and caller must free the same if returned count > 0 */
+static int
+ffa_partition_probe(const uuid_t *uuid, struct ffa_partition_info **buffer)
+{
+	int count;
+	u32 uuid0_4[4];
+	struct ffa_partition_info *pbuf;
+
+	export_uuid((u8 *)uuid0_4, uuid);
+	count = __ffa_partition_info_get(uuid0_4[0], uuid0_4[1], uuid0_4[2],
+					 uuid0_4[3], NULL, 0);
+	if (count <= 0)
+		return count;
+
+	pbuf = kcalloc(count, sizeof(*pbuf), GFP_KERNEL);
+	if (!pbuf)
+		return -ENOMEM;
+
+	count = __ffa_partition_info_get(uuid0_4[0], uuid0_4[1], uuid0_4[2],
+					 uuid0_4[3], pbuf, count);
+	if (count <= 0)
+		kfree(pbuf);
+	else
+		*buffer = pbuf;
+
+	return count;
+}
+
 #define VM_ID_MASK	GENMASK(15, 0)
 static int ffa_id_get(u16 *vm_id)
 {
@@ -231,6 +309,147 @@ static int ffa_id_get(u16 *vm_id)
 	return 0;
 }
 
+static int ffa_msg_send_direct_req(u16 src_id, u16 dst_id, bool mode_32bit,
+				   struct ffa_send_direct_data *data)
+{
+	u32 req_id, resp_id, src_dst_ids = PACK_TARGET_INFO(src_id, dst_id);
+	ffa_value_t ret;
+
+	if (mode_32bit) {
+		req_id = FFA_MSG_SEND_DIRECT_REQ;
+		resp_id = FFA_MSG_SEND_DIRECT_RESP;
+	} else {
+		req_id = FFA_FN_NATIVE(MSG_SEND_DIRECT_REQ);
+		resp_id = FFA_FN_NATIVE(MSG_SEND_DIRECT_RESP);
+	}
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = req_id, .a1 = src_dst_ids, .a2 = 0,
+		      .a3 = data->data0, .a4 = data->data1, .a5 = data->data2,
+		      .a6 = data->data3, .a7 = data->data4,
+		      }, &ret);
+
+	while (ret.a0 == FFA_INTERRUPT)
+		invoke_ffa_fn((ffa_value_t){
+			      .a0 = FFA_RUN, .a1 = ret.a1,
+			      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	if (ret.a0 == resp_id) {
+		data->data0 = ret.a3;
+		data->data1 = ret.a4;
+		data->data2 = ret.a5;
+		data->data3 = ret.a6;
+		data->data4 = ret.a7;
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static u32 ffa_api_version_get(void)
+{
+	return drv_info->version;
+}
+
+static int ffa_partition_info_get(const char *uuid_str,
+				  struct ffa_partition_info *buffer)
+{
+	int count;
+	uuid_t uuid;
+	struct ffa_partition_info *pbuf;
+
+	if (uuid_parse(uuid_str, &uuid)) {
+		pr_err("invalid uuid (%s)\n", uuid_str);
+		return -ENODEV;
+	}
+
+	count = ffa_partition_probe(&uuid_null, &pbuf);
+	if (count <= 0)
+		return -ENOENT;
+
+	memcpy(buffer, pbuf, sizeof(*pbuf) * count);
+	kfree(pbuf);
+	return 0;
+}
+
+static void ffa_mode_32bit_set(struct ffa_device *dev)
+{
+	dev->mode_32bit = true;
+}
+
+static int ffa_sync_send_receive(struct ffa_device *dev,
+				 struct ffa_send_direct_data *data)
+{
+	return ffa_msg_send_direct_req(drv_info->vm_id, dev->vm_id,
+				       dev->mode_32bit, data);
+}
+
+static const struct ffa_dev_ops ffa_ops = {
+	.api_version_get = ffa_api_version_get,
+	.partition_info_get = ffa_partition_info_get,
+	.mode_32bit_set = ffa_mode_32bit_set,
+	.sync_send_receive = ffa_sync_send_receive,
+};
+
+const struct ffa_dev_ops *ffa_dev_ops_get(struct ffa_device *dev)
+{
+	if (ffa_device_is_valid(dev))
+		return &ffa_ops;
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(ffa_dev_ops_get);
+
+void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid)
+{
+	int count, idx;
+	struct ffa_partition_info *pbuf, *tpbuf;
+
+	count = ffa_partition_probe(uuid, &pbuf);
+	if (count <= 0)
+		return;
+
+	for (idx = 0, tpbuf = pbuf; idx < count; idx++, tpbuf++)
+		if (tpbuf->id == ffa_dev->vm_id)
+			uuid_copy(&ffa_dev->uuid, uuid);
+	kfree(pbuf);
+}
+
+static void ffa_setup_partitions(void)
+{
+	int count, idx;
+	struct ffa_device *ffa_dev;
+	struct ffa_partition_info *pbuf, *tpbuf;
+
+	count = ffa_partition_probe(&uuid_null, &pbuf);
+	if (count <= 0) {
+		pr_info("%s: No partitions found, error %d\n", __func__, count);
+		return;
+	}
+
+	for (idx = 0, tpbuf = pbuf; idx < count; idx++, tpbuf++) {
+		/* Note that the &uuid_null parameter will require
+		 * ffa_device_match() to find the UUID of this partition id
+		 * with help of ffa_device_match_uuid(). Once the FF-A spec
+		 * is updated to provide correct UUID here for each partition
+		 * as part of the discovery API, we need to pass the
+		 * discovered UUID here instead.
+		 */
+		ffa_dev = ffa_device_register(&uuid_null, tpbuf->id);
+		if (!ffa_dev) {
+			pr_err("%s: failed to register partition ID 0x%x\n",
+			       __func__, tpbuf->id);
+			continue;
+		}
+
+		ffa_dev_set_drvdata(ffa_dev, drv_info);
+	}
+	kfree(pbuf);
+}
+
 static int __init ffa_init(void)
 {
 	int ret;
@@ -282,6 +501,8 @@ static int __init ffa_init(void)
 	mutex_init(&drv_info->rx_lock);
 	mutex_init(&drv_info->tx_lock);
 
+	ffa_setup_partitions();
+
 	return 0;
 free_pages:
 	if (drv_info->tx_buffer)
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 331ff62c9873b..d672673fc621d 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -6,7 +6,6 @@
 #ifndef _LINUX_ARM_FFA_H
 #define _LINUX_ARM_FFA_H
 
-#include <linux/cdev.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -15,6 +14,7 @@
 /* FFA Bus/Device/Driver related */
 struct ffa_device {
 	int vm_id;
+	bool mode_32bit;
 	uuid_t uuid;
 	struct device dev;
 };
@@ -48,6 +48,7 @@ int ffa_driver_register(struct ffa_driver *driver, struct module *owner,
 			const char *mod_name);
 void ffa_driver_unregister(struct ffa_driver *driver);
 bool ffa_device_is_valid(struct ffa_device *ffa_dev);
+const struct ffa_dev_ops *ffa_dev_ops_get(struct ffa_device *dev);
 
 #else
 static inline
@@ -70,6 +71,11 @@ static inline void ffa_driver_unregister(struct ffa_driver *driver) {}
 static inline
 bool ffa_device_is_valid(struct ffa_device *ffa_dev) { return false; }
 
+static inline
+const struct ffa_dev_ops *ffa_dev_ops_get(struct ffa_device *dev)
+{
+	return NULL;
+}
 #endif /* CONFIG_ARM_FFA_TRANSPORT */
 
 #define ffa_register(driver) \
@@ -88,4 +94,35 @@ bool ffa_device_is_valid(struct ffa_device *ffa_dev) { return false; }
 #define module_ffa_driver(__ffa_driver)	\
 	module_driver(__ffa_driver, ffa_register, ffa_unregister)
 
+/* FFA transport related */
+struct ffa_partition_info {
+	u16 id;
+	u16 exec_ctxt;
+/* partition supports receipt of direct requests */
+#define FFA_PARTITION_DIRECT_RECV	BIT(0)
+/* partition can send direct requests. */
+#define FFA_PARTITION_DIRECT_SEND	BIT(1)
+/* partition can send and receive indirect messages. */
+#define FFA_PARTITION_INDIRECT_MSG	BIT(2)
+	u32 properties;
+};
+
+/* For use with FFA_MSG_SEND_DIRECT_{REQ,RESP} which pass data via registers */
+struct ffa_send_direct_data {
+	unsigned long data0; /* w3/x3 */
+	unsigned long data1; /* w4/x4 */
+	unsigned long data2; /* w5/x5 */
+	unsigned long data3; /* w6/x6 */
+	unsigned long data4; /* w7/x7 */
+};
+
+struct ffa_dev_ops {
+	u32 (*api_version_get)(void);
+	int (*partition_info_get)(const char *uuid_str,
+				  struct ffa_partition_info *buffer);
+	void (*mode_32bit_set)(struct ffa_device *dev);
+	int (*sync_send_receive)(struct ffa_device *dev,
+				 struct ffa_send_direct_data *data);
+};
+
 #endif /* _LINUX_ARM_FFA_H */
-- 
GitLab


From d33aef5719c83ddec2356905af012275e1d01a38 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 21 May 2021 16:10:33 +0100
Subject: [PATCH 3668/4878] UPSTREAM: firmware: arm_ffa: Add support for MEM_*
 interfaces

Most of the MEM_* APIs share the same parameters, so they can be
generalised. Currently only MEM_SHARE is implemented and the user space
interface for that is not added yet.

Link: https://lore.kernel.org/r/20210521151033.181846-6-sudeep.holla@arm.com
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit cc2195fe536c28e192df5d07e6dd277af36814b4)
Change-Id: I4147ef4e66810fdd7560ce6204522a8f902d43e8
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/driver.c | 199 ++++++++++++++++++++++++++++++
 include/linux/arm_ffa.h           | 139 +++++++++++++++++++++
 2 files changed, 338 insertions(+)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 85b9bbdbeabe5..b1edb4b2e94aa 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -28,6 +28,8 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/uuid.h>
 
@@ -349,6 +351,192 @@ static int ffa_msg_send_direct_req(u16 src_id, u16 dst_id, bool mode_32bit,
 	return -EINVAL;
 }
 
+static int ffa_mem_first_frag(u32 func_id, phys_addr_t buf, u32 buf_sz,
+			      u32 frag_len, u32 len, u64 *handle)
+{
+	ffa_value_t ret;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = func_id, .a1 = len, .a2 = frag_len,
+		      .a3 = buf, .a4 = buf_sz,
+		      }, &ret);
+
+	while (ret.a0 == FFA_MEM_OP_PAUSE)
+		invoke_ffa_fn((ffa_value_t){
+			      .a0 = FFA_MEM_OP_RESUME,
+			      .a1 = ret.a1, .a2 = ret.a2,
+			      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	if (ret.a0 != FFA_SUCCESS)
+		return -EOPNOTSUPP;
+
+	if (handle)
+		*handle = PACK_HANDLE(ret.a2, ret.a3);
+
+	return frag_len;
+}
+
+static int ffa_mem_next_frag(u64 handle, u32 frag_len)
+{
+	ffa_value_t ret;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_MEM_FRAG_TX,
+		      .a1 = HANDLE_LOW(handle), .a2 = HANDLE_HIGH(handle),
+		      .a3 = frag_len,
+		      }, &ret);
+
+	while (ret.a0 == FFA_MEM_OP_PAUSE)
+		invoke_ffa_fn((ffa_value_t){
+			      .a0 = FFA_MEM_OP_RESUME,
+			      .a1 = ret.a1, .a2 = ret.a2,
+			      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	if (ret.a0 != FFA_MEM_FRAG_RX)
+		return -EOPNOTSUPP;
+
+	return ret.a3;
+}
+
+static int
+ffa_transmit_fragment(u32 func_id, phys_addr_t buf, u32 buf_sz, u32 frag_len,
+		      u32 len, u64 *handle, bool first)
+{
+	if (!first)
+		return ffa_mem_next_frag(*handle, frag_len);
+
+	return ffa_mem_first_frag(func_id, buf, buf_sz, frag_len, len, handle);
+}
+
+static u32 ffa_get_num_pages_sg(struct scatterlist *sg)
+{
+	u32 num_pages = 0;
+
+	do {
+		num_pages += sg->length / FFA_PAGE_SIZE;
+	} while ((sg = sg_next(sg)));
+
+	return num_pages;
+}
+
+static int
+ffa_setup_and_transmit(u32 func_id, void *buffer, u32 max_fragsize,
+		       struct ffa_mem_ops_args *args)
+{
+	int rc = 0;
+	bool first = true;
+	phys_addr_t addr = 0;
+	struct ffa_composite_mem_region *composite;
+	struct ffa_mem_region_addr_range *constituents;
+	struct ffa_mem_region_attributes *ep_mem_access;
+	struct ffa_mem_region *mem_region = buffer;
+	u32 idx, frag_len, length, buf_sz = 0, num_entries = sg_nents(args->sg);
+
+	mem_region->tag = args->tag;
+	mem_region->flags = args->flags;
+	mem_region->sender_id = drv_info->vm_id;
+	mem_region->attributes = FFA_MEM_NORMAL | FFA_MEM_WRITE_BACK |
+				 FFA_MEM_INNER_SHAREABLE;
+	ep_mem_access = &mem_region->ep_mem_access[0];
+
+	for (idx = 0; idx < args->nattrs; idx++, ep_mem_access++) {
+		ep_mem_access->receiver = args->attrs[idx].receiver;
+		ep_mem_access->attrs = args->attrs[idx].attrs;
+		ep_mem_access->composite_off = COMPOSITE_OFFSET(args->nattrs);
+	}
+	mem_region->ep_count = args->nattrs;
+
+	composite = buffer + COMPOSITE_OFFSET(args->nattrs);
+	composite->total_pg_cnt = ffa_get_num_pages_sg(args->sg);
+	composite->addr_range_cnt = num_entries;
+
+	length = COMPOSITE_CONSTITUENTS_OFFSET(args->nattrs, num_entries);
+	frag_len = COMPOSITE_CONSTITUENTS_OFFSET(args->nattrs, 0);
+	if (frag_len > max_fragsize)
+		return -ENXIO;
+
+	if (!args->use_txbuf) {
+		addr = virt_to_phys(buffer);
+		buf_sz = max_fragsize / FFA_PAGE_SIZE;
+	}
+
+	constituents = buffer + frag_len;
+	idx = 0;
+	do {
+		if (frag_len == max_fragsize) {
+			rc = ffa_transmit_fragment(func_id, addr, buf_sz,
+						   frag_len, length,
+						   &args->g_handle, first);
+			if (rc < 0)
+				return -ENXIO;
+
+			first = false;
+			idx = 0;
+			frag_len = 0;
+			constituents = buffer;
+		}
+
+		if ((void *)constituents - buffer > max_fragsize) {
+			pr_err("Memory Region Fragment > Tx Buffer size\n");
+			return -EFAULT;
+		}
+
+		constituents->address = sg_phys(args->sg);
+		constituents->pg_cnt = args->sg->length / FFA_PAGE_SIZE;
+		constituents++;
+		frag_len += sizeof(struct ffa_mem_region_addr_range);
+	} while ((args->sg = sg_next(args->sg)));
+
+	return ffa_transmit_fragment(func_id, addr, buf_sz, frag_len,
+				     length, &args->g_handle, first);
+}
+
+static int ffa_memory_ops(u32 func_id, struct ffa_mem_ops_args *args)
+{
+	int ret;
+	void *buffer;
+
+	if (!args->use_txbuf) {
+		buffer = alloc_pages_exact(RXTX_BUFFER_SIZE, GFP_KERNEL);
+		if (!buffer)
+			return -ENOMEM;
+	} else {
+		buffer = drv_info->tx_buffer;
+		mutex_lock(&drv_info->tx_lock);
+	}
+
+	ret = ffa_setup_and_transmit(func_id, buffer, RXTX_BUFFER_SIZE, args);
+
+	if (args->use_txbuf)
+		mutex_unlock(&drv_info->tx_lock);
+	else
+		free_pages_exact(buffer, RXTX_BUFFER_SIZE);
+
+	return ret < 0 ? ret : 0;
+}
+
+static int ffa_memory_reclaim(u64 g_handle, u32 flags)
+{
+	ffa_value_t ret;
+
+	invoke_ffa_fn((ffa_value_t){
+		      .a0 = FFA_MEM_RECLAIM,
+		      .a1 = HANDLE_LOW(g_handle), .a2 = HANDLE_HIGH(g_handle),
+		      .a3 = flags,
+		      }, &ret);
+
+	if (ret.a0 == FFA_ERROR)
+		return ffa_to_linux_errno((int)ret.a2);
+
+	return 0;
+}
+
 static u32 ffa_api_version_get(void)
 {
 	return drv_info->version;
@@ -387,11 +575,22 @@ static int ffa_sync_send_receive(struct ffa_device *dev,
 				       dev->mode_32bit, data);
 }
 
+static int
+ffa_memory_share(struct ffa_device *dev, struct ffa_mem_ops_args *args)
+{
+	if (dev->mode_32bit)
+		return ffa_memory_ops(FFA_MEM_SHARE, args);
+
+	return ffa_memory_ops(FFA_FN_NATIVE(MEM_SHARE), args);
+}
+
 static const struct ffa_dev_ops ffa_ops = {
 	.api_version_get = ffa_api_version_get,
 	.partition_info_get = ffa_partition_info_get,
 	.mode_32bit_set = ffa_mode_32bit_set,
 	.sync_send_receive = ffa_sync_send_receive,
+	.memory_reclaim = ffa_memory_reclaim,
+	.memory_share = ffa_memory_share,
 };
 
 const struct ffa_dev_ops *ffa_dev_ops_get(struct ffa_device *dev)
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index d672673fc621d..505c679b6a9b7 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -116,6 +116,142 @@ struct ffa_send_direct_data {
 	unsigned long data4; /* w7/x7 */
 };
 
+struct ffa_mem_region_addr_range {
+	/* The base IPA of the constituent memory region, aligned to 4 kiB */
+	u64 address;
+	/* The number of 4 kiB pages in the constituent memory region. */
+	u32 pg_cnt;
+	u32 reserved;
+};
+
+struct ffa_composite_mem_region {
+	/*
+	 * The total number of 4 kiB pages included in this memory region. This
+	 * must be equal to the sum of page counts specified in each
+	 * `struct ffa_mem_region_addr_range`.
+	 */
+	u32 total_pg_cnt;
+	/* The number of constituents included in this memory region range */
+	u32 addr_range_cnt;
+	u64 reserved;
+	/** An array of `addr_range_cnt` memory region constituents. */
+	struct ffa_mem_region_addr_range constituents[];
+};
+
+struct ffa_mem_region_attributes {
+	/* The ID of the VM to which the memory is being given or shared. */
+	u16 receiver;
+	/*
+	 * The permissions with which the memory region should be mapped in the
+	 * receiver's page table.
+	 */
+#define FFA_MEM_EXEC		BIT(3)
+#define FFA_MEM_NO_EXEC		BIT(2)
+#define FFA_MEM_RW		BIT(1)
+#define FFA_MEM_RO		BIT(0)
+	u8 attrs;
+	/*
+	 * Flags used during FFA_MEM_RETRIEVE_REQ and FFA_MEM_RETRIEVE_RESP
+	 * for memory regions with multiple borrowers.
+	 */
+#define FFA_MEM_RETRIEVE_SELF_BORROWER	BIT(0)
+	u8 flag;
+	u32 composite_off;
+	/*
+	 * Offset in bytes from the start of the outer `ffa_memory_region` to
+	 * an `struct ffa_mem_region_addr_range`.
+	 */
+	u64 reserved;
+};
+
+struct ffa_mem_region {
+	/* The ID of the VM/owner which originally sent the memory region */
+	u16 sender_id;
+#define FFA_MEM_NORMAL		BIT(5)
+#define FFA_MEM_DEVICE		BIT(4)
+
+#define FFA_MEM_WRITE_BACK	(3 << 2)
+#define FFA_MEM_NON_CACHEABLE	(1 << 2)
+
+#define FFA_DEV_nGnRnE		(0 << 2)
+#define FFA_DEV_nGnRE		(1 << 2)
+#define FFA_DEV_nGRE		(2 << 2)
+#define FFA_DEV_GRE		(3 << 2)
+
+#define FFA_MEM_NON_SHAREABLE	(0)
+#define FFA_MEM_OUTER_SHAREABLE	(2)
+#define FFA_MEM_INNER_SHAREABLE	(3)
+	u8 attributes;
+	u8 reserved_0;
+/*
+ * Clear memory region contents after unmapping it from the sender and
+ * before mapping it for any receiver.
+ */
+#define FFA_MEM_CLEAR			BIT(0)
+/*
+ * Whether the hypervisor may time slice the memory sharing or retrieval
+ * operation.
+ */
+#define FFA_TIME_SLICE_ENABLE		BIT(1)
+
+#define FFA_MEM_RETRIEVE_TYPE_IN_RESP	(0 << 3)
+#define FFA_MEM_RETRIEVE_TYPE_SHARE	(1 << 3)
+#define FFA_MEM_RETRIEVE_TYPE_LEND	(2 << 3)
+#define FFA_MEM_RETRIEVE_TYPE_DONATE	(3 << 3)
+
+#define FFA_MEM_RETRIEVE_ADDR_ALIGN_HINT	BIT(9)
+#define FFA_MEM_RETRIEVE_ADDR_ALIGN(x)		((x) << 5)
+	/* Flags to control behaviour of the transaction. */
+	u32 flags;
+#define HANDLE_LOW_MASK		GENMASK_ULL(31, 0)
+#define HANDLE_HIGH_MASK	GENMASK_ULL(63, 32)
+#define HANDLE_LOW(x)		((u32)(FIELD_GET(HANDLE_LOW_MASK, (x))))
+#define	HANDLE_HIGH(x)		((u32)(FIELD_GET(HANDLE_HIGH_MASK, (x))))
+
+#define PACK_HANDLE(l, h)		\
+	(FIELD_PREP(HANDLE_LOW_MASK, (l)) | FIELD_PREP(HANDLE_HIGH_MASK, (h)))
+	/*
+	 * A globally-unique ID assigned by the hypervisor for a region
+	 * of memory being sent between VMs.
+	 */
+	u64 handle;
+	/*
+	 * An implementation defined value associated with the receiver and the
+	 * memory region.
+	 */
+	u64 tag;
+	u32 reserved_1;
+	/*
+	 * The number of `ffa_mem_region_attributes` entries included in this
+	 * transaction.
+	 */
+	u32 ep_count;
+	/*
+	 * An array of endpoint memory access descriptors.
+	 * Each one specifies a memory region offset, an endpoint and the
+	 * attributes with which this memory region should be mapped in that
+	 * endpoint's page table.
+	 */
+	struct ffa_mem_region_attributes ep_mem_access[];
+};
+
+#define	COMPOSITE_OFFSET(x)	\
+	(offsetof(struct ffa_mem_region, ep_mem_access[x]))
+#define CONSTITUENTS_OFFSET(x)	\
+	(offsetof(struct ffa_composite_mem_region, constituents[x]))
+#define COMPOSITE_CONSTITUENTS_OFFSET(x, y)	\
+	(COMPOSITE_OFFSET(x) + CONSTITUENTS_OFFSET(y))
+
+struct ffa_mem_ops_args {
+	bool use_txbuf;
+	u32 nattrs;
+	u32 flags;
+	u64 tag;
+	u64 g_handle;
+	struct scatterlist *sg;
+	struct ffa_mem_region_attributes *attrs;
+};
+
 struct ffa_dev_ops {
 	u32 (*api_version_get)(void);
 	int (*partition_info_get)(const char *uuid_str,
@@ -123,6 +259,9 @@ struct ffa_dev_ops {
 	void (*mode_32bit_set)(struct ffa_device *dev);
 	int (*sync_send_receive)(struct ffa_device *dev,
 				 struct ffa_send_direct_data *data);
+	int (*memory_reclaim)(u64 g_handle, u32 flags);
+	int (*memory_share)(struct ffa_device *dev,
+			    struct ffa_mem_ops_args *args);
 };
 
 #endif /* _LINUX_ARM_FFA_H */
-- 
GitLab


From bf448ec6ec9d72b101eb790662ea0af06a331a4a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 21 Jun 2021 22:16:51 +0200
Subject: [PATCH 3669/4878] UPSTREAM: firmware: arm_ffa: Ensure drivers provide
 a probe function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The bus probe callback calls the driver callback without further
checking. Better be safe than sorry and refuse registration of a driver
without a probe function to prevent a NULL pointer exception.

Link: https://lore.kernel.org/r/20210621201652.127611-1-u.kleine-koenig@pengutronix.de
Fixes: e781858488b9 ("firmware: arm_ffa: Add initial FFA bus support for device enumeration")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 92743071464fca5acbbe812d9a0d88de3eaaad36)
Change-Id: I187fa6bf905381e976e0fa2d69359387c4a22a5d
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/bus.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index 83166e02b1918..d2cc24319626b 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -99,6 +99,9 @@ int ffa_driver_register(struct ffa_driver *driver, struct module *owner,
 {
 	int ret;
 
+	if (!driver->probe)
+		return -EINVAL;
+
 	driver->driver.bus = &ffa_bus_type;
 	driver->driver.name = driver->name;
 	driver->driver.owner = owner;
-- 
GitLab


From bf2b116873dc17d7b698e596cc2f81474065f325 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 21 Jun 2021 22:16:52 +0200
Subject: [PATCH 3670/4878] UPSTREAM: firmware: arm_ffa: Simplify probe
 function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When the driver core calls the probe callback it already checked that
the devices match, so there is no need to call the match callback again.

Link: https://lore.kernel.org/r/20210621201652.127611-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit e362547addc39e4bb18ad5bdfd59ce4d512d0c08)
Change-Id: Ic07137275f1e229a4318b328f9cf73b90bff7dad
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/bus.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index d2cc24319626b..00fe595a5bc89 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -46,9 +46,6 @@ static int ffa_device_probe(struct device *dev)
 	struct ffa_driver *ffa_drv = to_ffa_driver(dev->driver);
 	struct ffa_device *ffa_dev = to_ffa_dev(dev);
 
-	if (!ffa_device_match(dev, dev->driver))
-		return -ENODEV;
-
 	return ffa_drv->probe(ffa_dev);
 }
 
-- 
GitLab


From 9d5cb0b184f0cdab69b449b622bfe62f0c8f52f2 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Tue, 22 Jun 2021 17:22:02 +0100
Subject: [PATCH 3671/4878] UPSTREAM: firmware: arm_ffa: Fix the comment style

clang produces the following warning:

    drivers/firmware/arm_ffa/driver.c:123: warning: expecting
    prototype for FF(). Prototype was for FFA_PAGE_SIZE() instead

    This comment starts with '/**', but isn't a kernel-doc comment.
    Refer Documentation/doc-guide/kernel-doc.rst

Fix the same by removing the kernel-doc style comment here.

Link: https://lore.kernel.org/r/20210622162202.3485866-1-sudeep.holla@arm.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit ba684a31d3626c86cd9097e12d6ed57d224d077d)
Change-Id: I6adbe515b3befb0850da5a6ef1653b392620f94c
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index b1edb4b2e94aa..88b822575ac41 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -120,7 +120,7 @@
 #define PACK_TARGET_INFO(s, r)		\
 	(FIELD_PREP(SENDER_ID_MASK, (s)) | FIELD_PREP(RECEIVER_ID_MASK, (r)))
 
-/**
+/*
  * FF-A specification mentions explicitly about '4K pages'. This should
  * not be confused with the kernel PAGE_SIZE, which is the translation
  * granule kernel is configured and may be one among 4K, 16K and 64K.
-- 
GitLab


From 5edbcab5d6e2f6ee22b1cc415ffe4b16460fbc8a Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Wed, 7 Jul 2021 14:47:39 +0100
Subject: [PATCH 3672/4878] UPSTREAM: firmware: arm_ffa: Fix a possible
 ffa_linux_errmap buffer overflow

The ffa_linux_errmap buffer access index is supposed to range from 0-8
but it ranges from 1-9 instead. It reads one element out of bounds. It
also changes the success into -EINVAL though ffa_to_linux_errno is never
used in case of success, it is expected to work for success case too.

It is slightly confusing code as the negative of the error code
is used as index to the buffer. Fix it by negating it at the start and
make it more readable.

Link: https://lore.kernel.org/r/20210707134739.1869481-1-sudeep.holla@arm.com
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit dd925db6f07556061c11ab1fbfa4a0145ae6b438)
Change-Id: Ib2d05bdee7c79746c8a397e1c67f4ebcdf6c8ad0
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/driver.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 88b822575ac41..c9fb56afbcb49 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -149,8 +149,10 @@ static const int ffa_linux_errmap[] = {
 
 static inline int ffa_to_linux_errno(int errno)
 {
-	if (errno < FFA_RET_SUCCESS && errno >= -ARRAY_SIZE(ffa_linux_errmap))
-		return ffa_linux_errmap[-errno];
+	int err_idx = -errno;
+
+	if (err_idx >= 0 && err_idx < ARRAY_SIZE(ffa_linux_errmap))
+		return ffa_linux_errmap[err_idx];
 	return -EINVAL;
 }
 
-- 
GitLab


From a2e20e7f8e57cb0c2f016ae8bcfa01204a9142b4 Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 24 Sep 2021 10:28:58 +0100
Subject: [PATCH 3673/4878] BACKPORT: firmware: arm_ffa: Add missing remove
 callback to ffa_bus_type

Currently the arm_ffa firmware driver can be built as module and hence
all the users of FFA driver. If any driver on the ffa bus is removed or
unregistered, the remove callback on all the device bound to the driver
being removed should be callback. For that to happen, we must register
a remove callback on the ffa_bus which is currently missing. This results
in the probe getting called again without the previous remove callback
on a device which may result in kernel crash.

Fix the issue by registering the remove callback on the FFA bus.

Link: https://lore.kernel.org/r/20210924092859.3057562-1-sudeep.holla@arm.com
Fixes: e781858488b9 ("firmware: arm_ffa: Add initial FFA bus support for device enumeration")
Reported-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 244f5d597e1ea519c2085fbd9819458688775e42)
(backported void->int return value for remove callback)
Change-Id: Ifc076ec9af4d60d5b7111dbc8ec4c2ad5b441b6f
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/bus.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index 00fe595a5bc89..b544c71981117 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -49,6 +49,15 @@ static int ffa_device_probe(struct device *dev)
 	return ffa_drv->probe(ffa_dev);
 }
 
+static int ffa_device_remove(struct device *dev)
+{
+	struct ffa_driver *ffa_drv = to_ffa_driver(dev->driver);
+
+	ffa_drv->remove(to_ffa_dev(dev));
+
+	return 0;
+}
+
 static int ffa_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
 	struct ffa_device *ffa_dev = to_ffa_dev(dev);
@@ -86,6 +95,7 @@ struct bus_type ffa_bus_type = {
 	.name		= "arm_ffa",
 	.match		= ffa_device_match,
 	.probe		= ffa_device_probe,
+	.remove		= ffa_device_remove,
 	.uevent		= ffa_device_uevent,
 	.dev_groups	= ffa_device_attributes_groups,
 };
-- 
GitLab


From 42706fb1c897196cab54eceddbf2a8420e69161e Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Fri, 24 Sep 2021 10:28:59 +0100
Subject: [PATCH 3674/4878] UPSTREAM: firmware: arm_ffa: Fix
 __ffa_devices_unregister

When arm_ffa firmware driver module is unloaded or removed we call
__ffa_devices_unregister on all the devices on the ffa bus. It must
unregister all the devices instead it is currently just releasing the
devices without unregistering. That is pure wrong as when we try to
load the module back again, it will result in the kernel crash something
like below.

-->8
 CPU: 2 PID: 232 Comm: modprobe Not tainted 5.15.0-rc2+ #169
 Hardware name: FVP Base RevC (DT)
 Call trace:
  dump_backtrace+0x0/0x1cc
  show_stack+0x18/0x64
  dump_stack_lvl+0x64/0x7c
  dump_stack+0x18/0x38
  sysfs_create_dir_ns+0xe4/0x140
  kobject_add_internal+0x170/0x358
  kobject_add+0x94/0x100
  device_add+0x178/0x5f0
  device_register+0x20/0x30
  ffa_device_register+0x80/0xcc [ffa_module]
  ffa_setup_partitions+0x7c/0x108 [ffa_module]
  init_module+0x290/0x2dc [ffa_module]
  do_one_initcall+0xbc/0x230
  do_init_module+0x58/0x304
  load_module+0x15e0/0x1f68
  __arm64_sys_finit_module+0xb8/0xf4
  invoke_syscall+0x44/0x140
  el0_svc_common+0xb4/0xf0
  do_el0_svc+0x24/0x80
  el0_svc+0x20/0x50
  el0t_64_sync_handler+0x84/0xe4
  el0t_64_sync+0x1a0/0x1a4
 kobject_add_internal failed for arm-ffa-8001 with -EEXIST, don't try to
 register things with the same name in the same directory.
----

Fix the issue by calling device_unregister in __ffa_devices_unregister
which will also take care of calling device_release(which is mapped to
ffa_release_device)

Link: https://lore.kernel.org/r/20210924092859.3057562-2-sudeep.holla@arm.com
Fixes: e781858488b9 ("firmware: arm_ffa: Add initial FFA bus support for device enumeration")
Tested-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit eb7b52e6db7c21400b9b2d539f9343fb6e94bd94)
Change-Id: Ib285280cedc3c10376c0134f5036a68819fb9534
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index b544c71981117..fca1e311ea6c7 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -137,7 +137,7 @@ static void ffa_release_device(struct device *dev)
 
 static int __ffa_devices_unregister(struct device *dev, void *data)
 {
-	ffa_release_device(dev);
+	device_unregister(dev);
 
 	return 0;
 }
-- 
GitLab


From 54b8c1b9f7f887df126b81e562b8a0a774eb31ca Mon Sep 17 00:00:00 2001
From: Sudeep Holla <sudeep.holla@arm.com>
Date: Wed, 13 Oct 2021 10:11:27 +0100
Subject: [PATCH 3675/4878] UPSTREAM: firmware: arm_ffa: Handle compatibility
 with different firmware versions

The driver currently just support v1.0 of Arm FFA specification. It also
expects the firmware implementation to match the same and bail out if it
doesn't match. This is causing issue when running with higher version of
firmware implementation(e.g. v1.1 which will released soon).

In order to support compatibility with different firmware versions, let
us add additional checks and find the compatible version the driver can
work with.

Link: https://lore.kernel.org/r/20211013091127.990992-1-sudeep.holla@arm.com
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 8e3f9da608f14cfebac2659d8dd8737b79d01308)
Change-Id: I7bc9a3b172a9067bfd4e9bb9d50b4729e915b5a5
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/driver.c | 37 ++++++++++++++++++++++++++-----
 1 file changed, 32 insertions(+), 5 deletions(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index c9fb56afbcb49..6e0c883ab7086 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -167,6 +167,28 @@ struct ffa_drv_info {
 
 static struct ffa_drv_info *drv_info;
 
+/*
+ * The driver must be able to support all the versions from the earliest
+ * supported FFA_MIN_VERSION to the latest supported FFA_DRIVER_VERSION.
+ * The specification states that if firmware supports a FFA implementation
+ * that is incompatible with and at a greater version number than specified
+ * by the caller(FFA_DRIVER_VERSION passed as parameter to FFA_VERSION),
+ * it must return the NOT_SUPPORTED error code.
+ */
+static u32 ffa_compatible_version_find(u32 version)
+{
+	u32 compat_version;
+	u16 major = MAJOR_VERSION(version), minor = MINOR_VERSION(version);
+	u16 drv_major = MAJOR_VERSION(FFA_DRIVER_VERSION);
+	u16 drv_minor = MINOR_VERSION(FFA_DRIVER_VERSION);
+
+	if ((major < drv_major) || (major == drv_major && minor <= drv_minor))
+		return version;
+
+	pr_info("Firmware version higher than driver version, downgrading\n");
+	return FFA_DRIVER_VERSION;
+}
+
 static int ffa_version_check(u32 *version)
 {
 	ffa_value_t ver;
@@ -180,15 +202,20 @@ static int ffa_version_check(u32 *version)
 		return -EOPNOTSUPP;
 	}
 
-	if (ver.a0 < FFA_MIN_VERSION || ver.a0 > FFA_DRIVER_VERSION) {
-		pr_err("Incompatible version %d.%d found\n",
-		       MAJOR_VERSION(ver.a0), MINOR_VERSION(ver.a0));
+	if (ver.a0 < FFA_MIN_VERSION) {
+		pr_err("Incompatible v%d.%d! Earliest supported v%d.%d\n",
+		       MAJOR_VERSION(ver.a0), MINOR_VERSION(ver.a0),
+		       MAJOR_VERSION(FFA_MIN_VERSION),
+		       MINOR_VERSION(FFA_MIN_VERSION));
 		return -EINVAL;
 	}
 
-	*version = ver.a0;
-	pr_info("Version %d.%d found\n", MAJOR_VERSION(ver.a0),
+	pr_info("Driver version %d.%d\n", MAJOR_VERSION(FFA_DRIVER_VERSION),
+		MINOR_VERSION(FFA_DRIVER_VERSION));
+	pr_info("Firmware version %d.%d found\n", MAJOR_VERSION(ver.a0),
 		MINOR_VERSION(ver.a0));
+	*version = ffa_compatible_version_find(ver.a0);
+
 	return 0;
 }
 
-- 
GitLab


From 6115643278b41d64406a1b80d6a2e2c5a8834ea3 Mon Sep 17 00:00:00 2001
From: Marc Bonnici <marc.bonnici@arm.com>
Date: Fri, 15 Oct 2021 17:57:42 +0100
Subject: [PATCH 3676/4878] UPSTREAM: firmware: arm_ffa: Add support for
 MEM_LEND

As part of the FF-A spec, an endpoint is allowed to transfer access of,
or lend, a memory region to one or more borrowers.

Extend the existing memory sharing implementation to support
FF-A MEM_LEND functionality and expose this to other kernel drivers.

Note that upon a successful MEM_LEND request the caller must ensure that
the memory region specified is not accessed until a successful
MEM_RECALIM call has been made. On systems with a hypervisor present
this will been enforced, however on systems without a hypervisor the
responsibility falls to the calling kernel driver to prevent access.

Link: https://lore.kernel.org/r/20211015165742.2513065-1-marc.bonnici@arm.com
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 82a8daaecfd9382e9450a05f86be8a274cf69a27)
Change-Id: I45e0376785904580ca6585225b7b63cc49f66bf1
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/driver.c | 17 +++++++++++++++++
 include/linux/arm_ffa.h           |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 6e0c883ab7086..12f4c87c45556 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -613,6 +613,22 @@ ffa_memory_share(struct ffa_device *dev, struct ffa_mem_ops_args *args)
 	return ffa_memory_ops(FFA_FN_NATIVE(MEM_SHARE), args);
 }
 
+static int
+ffa_memory_lend(struct ffa_device *dev, struct ffa_mem_ops_args *args)
+{
+	/* Note that upon a successful MEM_LEND request the caller
+	 * must ensure that the memory region specified is not accessed
+	 * until a successful MEM_RECALIM call has been made.
+	 * On systems with a hypervisor present this will been enforced,
+	 * however on systems without a hypervisor the responsibility
+	 * falls to the calling kernel driver to prevent access.
+	 */
+	if (dev->mode_32bit)
+		return ffa_memory_ops(FFA_MEM_LEND, args);
+
+	return ffa_memory_ops(FFA_FN_NATIVE(MEM_LEND), args);
+}
+
 static const struct ffa_dev_ops ffa_ops = {
 	.api_version_get = ffa_api_version_get,
 	.partition_info_get = ffa_partition_info_get,
@@ -620,6 +636,7 @@ static const struct ffa_dev_ops ffa_ops = {
 	.sync_send_receive = ffa_sync_send_receive,
 	.memory_reclaim = ffa_memory_reclaim,
 	.memory_share = ffa_memory_share,
+	.memory_lend = ffa_memory_lend,
 };
 
 const struct ffa_dev_ops *ffa_dev_ops_get(struct ffa_device *dev)
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 505c679b6a9b7..85651e41ded86 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -262,6 +262,8 @@ struct ffa_dev_ops {
 	int (*memory_reclaim)(u64 g_handle, u32 flags);
 	int (*memory_share)(struct ffa_device *dev,
 			    struct ffa_mem_ops_args *args);
+	int (*memory_lend)(struct ffa_device *dev,
+			   struct ffa_mem_ops_args *args);
 };
 
 #endif /* _LINUX_ARM_FFA_H */
-- 
GitLab


From 23a7f929b333efcf0beec72bf4c785a219eb6e4d Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Tue, 26 Oct 2021 10:33:50 +0200
Subject: [PATCH 3677/4878] UPSTREAM: firmware: arm_ffa: Remove unused
 'compat_version' variable

The newly added ffa_compatible_version_find() function causes a
build warning because of a variable that is never used:

drivers/firmware/arm_ffa/driver.c:180:6: error: unused variable 'compat_version' [-Werror,-Wunused-variable]
        u32 compat_version;

Link: https://lore.kernel.org/r/20211026083400.3444946-1-arnd@kernel.org
Fixes: 8e3f9da608f1 ("firmware: arm_ffa: Handle compatibility with different firmware versions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 01537a078b86917c7bb69aa4b756b42b980c158b)
Change-Id: Ia6eea859046c07d58b32d24113e4b0ea13509364
Bug: 168585974
Signed-off-by: Will Deacon <willdeacon@google.com>
---
 drivers/firmware/arm_ffa/driver.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 12f4c87c45556..14f900047ac0c 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -177,7 +177,6 @@ static struct ffa_drv_info *drv_info;
  */
 static u32 ffa_compatible_version_find(u32 version)
 {
-	u32 compat_version;
 	u16 major = MAJOR_VERSION(version), minor = MINOR_VERSION(version);
 	u16 drv_major = MAJOR_VERSION(FFA_DRIVER_VERSION);
 	u16 drv_minor = MINOR_VERSION(FFA_DRIVER_VERSION);
-- 
GitLab


From 48879e241627a182c9f722e7842e0dbdecdc46fb Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Wed, 9 Feb 2022 18:11:25 +0000
Subject: [PATCH 3678/4878] ANDROID: sched: Don't allow frozen asymmetric tasks
 to remain on the rq

If a task with a restricted possible CPU mask and PF_FROZEN or
PF_FREEZER_SKIP set blocks, then we must not put it back on the runqueue
to handle a signal because this could lead to migration failures later
on if the suspending CPU is not capable of running it.

Return such a task to the runqueue only if a fatal signal is pending,
and otherwise allow the task to block.

Bug: 202918514
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I04cc9e65751f2bffc556c4da9ef02fe386764324
---
 kernel/sched/core.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 509c81f545c8a..6a3af5ba16f3c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4618,6 +4618,23 @@ restart:
 	BUG();
 }
 
+static bool __task_can_run(struct task_struct *prev)
+{
+	if (__fatal_signal_pending(prev))
+		return true;
+
+	if (!frozen_or_skipped(prev))
+		return true;
+
+	/*
+	 * We can't safely go back on the runqueue if we're an asymmetric
+	 * task skipping the freezer. Doing so can lead to migration failures
+	 * later on if there aren't any suitable CPUs left around for us to
+	 * move to.
+	 */
+	return task_cpu_possible_mask(prev) == cpu_possible_mask;
+}
+
 /*
  * __schedule() is the main scheduler function.
  *
@@ -4711,7 +4728,7 @@ static void __sched notrace __schedule(bool preempt)
 	 */
 	prev_state = prev->state;
 	if (!preempt && prev_state) {
-		if (signal_pending_state(prev_state, prev)) {
+		if (signal_pending_state(prev_state, prev) && __task_can_run(prev)) {
 			prev->state = TASK_RUNNING;
 		} else {
 			prev->sched_contributes_to_load =
-- 
GitLab


From 0fff3f48e598ef30fbb1bb30d94678c52bfe8744 Mon Sep 17 00:00:00 2001
From: Howard Yen <howardyen@google.com>
Date: Thu, 10 Feb 2022 16:14:23 +0800
Subject: [PATCH 3679/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 199034378
Signed-off-by: Howard Yen <howardyen@google.com>
Change-Id: I619bc1405f00bf4aed3fb1e4c1100ee3dbdba1f8
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 529d338a9cd7f..c0bd744b6ae21 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1954,6 +1954,7 @@
   snd_soc_runtime_set_dai_fmt
   snd_soc_unregister_card
   snd_soc_unregister_component
+  snd_vendor_set_ops
   snprintf
   soc_device_register
   sock_alloc_send_skb
-- 
GitLab


From cf94210a4f7c69648eabf38f34fd06712b6a8769 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Thu, 10 Feb 2022 10:58:12 -0800
Subject: [PATCH 3680/4878] ANDROID: clang: update to 14.0.2

Bug: 218541542
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: I814a0720a6ead53011d91e0ff56847247b677c91
---
 build.config.constants | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.constants b/build.config.constants
index 770744dc239a5..3dfe3ba4d9bf5 100644
--- a/build.config.constants
+++ b/build.config.constants
@@ -1 +1 @@
-CLANG_VERSION=r437112b
+CLANG_VERSION=r445002
-- 
GitLab


From bbc7a33eb3c2df7dfbf5456ce0b081eeea84de2c Mon Sep 17 00:00:00 2001
From: Alistair Delva <adelva@google.com>
Date: Thu, 10 Feb 2022 11:20:10 -0800
Subject: [PATCH 3681/4878] ANDROID: GKI: Enable
 CONFIG_SERIAL_8250_RUNTIME_UARTS=0

8250_core registers 4 ISA uart ports by default, which can cause
problems on some devices which don't have them. This change doesn't
break earlycon=uart8250, but it will cause the 8250_of and 8250_pci sub
drivers to be unable to register ports. Boards that really need the full
8250 driver to take over from earlycon can use the "8250.nr_uarts=X"
kernel command line option to restore the ports allocation.

Bug: 216312411
Signed-off-by: Alistair Delva <adelva@google.com>
Change-Id: I04715394b32bd98544657101de4537df34554ea9
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 18a66d54c2b2a..88755d1adeb1d 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -379,6 +379,7 @@ CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
 # CONFIG_SERIAL_8250_EXAR is not set
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
 CONFIG_SERIAL_8250_DW=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_AMBA_PL011=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 22d7961f02e9a..371dc3f0f84dc 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -350,6 +350,7 @@ CONFIG_INPUT_UINPUT=y
 CONFIG_SERIAL_8250=y
 # CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
 CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_SAMSUNG=y
 CONFIG_SERIAL_SAMSUNG_CONSOLE=y
-- 
GitLab


From c2f85483318593a0ea8e36bb3d8b405871379d30 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Thu, 10 Feb 2022 22:09:59 +0800
Subject: [PATCH 3682/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 218684784
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ib3b8bff647bbfb65b1a52a349f83efcc871e35b8
---
 android/abi_gki_aarch64_generic | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index c0bd744b6ae21..47b3d53338334 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -900,6 +900,7 @@
   get_random_u32
   get_sg_io_hdr
   __get_task_comm
+  get_task_cred
   get_thermal_instance
   get_unused_fd_flags
   get_user_pages
@@ -1320,6 +1321,7 @@
   noop_llseek
   nr_cpu_ids
   nr_irqs
+  ns_capable
   nsec_to_clock_t
   ns_to_timespec64
   __num_online_cpus
@@ -1583,6 +1585,7 @@
   proto_unregister
   pskb_expand_head
   __pskb_pull_tail
+  __put_cred
   put_device
   put_disk
   __put_page
-- 
GitLab


From be93028d306dac9f5b59ebebd9ec7abcfc69c156 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 27 Jan 2022 08:16:38 +0100
Subject: [PATCH 3683/4878] moxart: fix potential use-after-free on remove path

commit bd2db32e7c3e35bd4d9b8bbff689434a50893546 upstream.

It was reported that the mmc host structure could be accessed after it
was freed in moxart_remove(), so fix this by saving the base register of
the device and using it instead of the pointer dereference.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Xin Xiong <xiongx18@fudan.edu.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Cc: linux-mmc@vger.kernel.org
Cc: stable <stable@vger.kernel.org>
Reported-by: whitehat002 <hackyzh002@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220127071638.4057899-1-gregkh@linuxfoundation.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/moxart-mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index 7697068ad9695..ea67a7ef2390c 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -708,12 +708,12 @@ static int moxart_remove(struct platform_device *pdev)
 	if (!IS_ERR_OR_NULL(host->dma_chan_rx))
 		dma_release_channel(host->dma_chan_rx);
 	mmc_remove_host(mmc);
-	mmc_free_host(mmc);
 
 	writel(0, host->base + REG_INTERRUPT_MASK);
 	writel(0, host->base + REG_POWER_CONTROL);
 	writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
 	       host->base + REG_CLOCK_CONTROL);
+	mmc_free_host(mmc);
 
 	return 0;
 }
-- 
GitLab


From b62267b8b06e9b8bb429ae8f962ee431e6535d60 Mon Sep 17 00:00:00 2001
From: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Date: Fri, 28 Jan 2022 15:06:43 +0100
Subject: [PATCH 3684/4878] KVM: s390: Return error on SIDA memop on normal
 guest

commit 2c212e1baedcd782b2535a3f86bc491977677c0e upstream.

Refuse SIDA memops on guests which are not protected.
For normal guests, the secure instruction data address designation,
which determines the location we access, is not under control of KVM.

Fixes: 19e122776886 (KVM: S390: protvirt: Introduce instruction data area bounce buffer)
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/kvm/kvm-s390.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 07a04f3926009..d8e9239c24ffc 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -4654,6 +4654,8 @@ static long kvm_s390_guest_sida_op(struct kvm_vcpu *vcpu,
 		return -EINVAL;
 	if (mop->size + mop->sida_offset > sida_size(vcpu->arch.sie_block))
 		return -E2BIG;
+	if (!kvm_s390_pv_cpu_is_protected(vcpu))
+		return -EINVAL;
 
 	switch (mop->op) {
 	case KVM_S390_MEMOP_SIDA_READ:
-- 
GitLab


From 2951d21689762a2bb6b2a81e9d5ea49a1c396be4 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 2 Feb 2022 17:46:48 +1100
Subject: [PATCH 3685/4878] crypto: api - Move cryptomgr soft dependency into
 algapi

commit c6ce9c5831cae515d375a01b97ae1778689acf19 upstream.

The soft dependency on cryptomgr is only needed in algapi because
if algapi isn't present then no algorithms can be loaded.  This
also fixes the case where api is built-in but algapi is built as
a module as the soft dependency would otherwise get lost.

Fixes: 8ab23d547f65 ("crypto: api - Add softdep on cryptomgr")
Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 crypto/algapi.c | 1 +
 crypto/api.c    | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/algapi.c b/crypto/algapi.c
index fdabf2675b63f..9de27daa98b47 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -1295,3 +1295,4 @@ module_exit(crypto_algapi_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Cryptographic algorithms API");
+MODULE_SOFTDEP("pre: cryptomgr");
diff --git a/crypto/api.c b/crypto/api.c
index c4eda56cff891..5ffcd3ab4a753 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -603,4 +603,3 @@ EXPORT_SYMBOL_GPL(crypto_req_done);
 
 MODULE_DESCRIPTION("Cryptographic core API");
 MODULE_LICENSE("GPL");
-MODULE_SOFTDEP("pre: cryptomgr");
-- 
GitLab


From 3c7e5943553594f68bbc070683db6bb6f6e9e78e Mon Sep 17 00:00:00 2001
From: Jon Maloy <jmaloy@redhat.com>
Date: Sat, 5 Feb 2022 14:11:18 -0500
Subject: [PATCH 3686/4878] tipc: improve size validations for received domain
 records

commit 9aa422ad326634b76309e8ff342c246800621216 upstream.

The function tipc_mon_rcv() allows a node to receive and process
domain_record structs from peer nodes to track their views of the
network topology.

This patch verifies that the number of members in a received domain
record does not exceed the limit defined by MAX_MON_DOMAIN, something
that may otherwise lead to a stack overflow.

tipc_mon_rcv() is called from the function tipc_link_proto_rcv(), where
we are reading a 32 bit message data length field into a uint16.  To
avert any risk of bit overflow, we add an extra sanity check for this in
that function.  We cannot see that happen with the current code, but
future designers being unaware of this risk, may introduce it by
allowing delivery of very large (> 64k) sk buffers from the bearer
layer.  This potential problem was identified by Eric Dumazet.

This fixes CVE-2022-0435

Reported-by: Samuel Page <samuel.page@appgate.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Fixes: 35c55c9877f8 ("tipc: add neighbor monitoring framework")
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Samuel Page <samuel.page@appgate.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/tipc/link.c    | 9 +++++++--
 net/tipc/monitor.c | 2 ++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 29591955d08a5..fb835a3822f49 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2159,7 +2159,7 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 	struct tipc_msg *hdr = buf_msg(skb);
 	struct tipc_gap_ack_blks *ga = NULL;
 	bool reply = msg_probe(hdr), retransmitted = false;
-	u16 dlen = msg_data_sz(hdr), glen = 0;
+	u32 dlen = msg_data_sz(hdr), glen = 0;
 	u16 peers_snd_nxt =  msg_next_sent(hdr);
 	u16 peers_tol = msg_link_tolerance(hdr);
 	u16 peers_prio = msg_linkprio(hdr);
@@ -2173,6 +2173,10 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 	void *data;
 
 	trace_tipc_proto_rcv(skb, false, l->name);
+
+	if (dlen > U16_MAX)
+		goto exit;
+
 	if (tipc_link_is_blocked(l) || !xmitq)
 		goto exit;
 
@@ -2268,7 +2272,8 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 
 		/* Receive Gap ACK blocks from peer if any */
 		glen = tipc_get_gap_ack_blks(&ga, l, hdr, true);
-
+		if(glen > dlen)
+			break;
 		tipc_mon_rcv(l->net, data + glen, dlen - glen, l->addr,
 			     &l->mon_state, l->bearer_id);
 
diff --git a/net/tipc/monitor.c b/net/tipc/monitor.c
index 6dce2abf436ee..a37190da5a504 100644
--- a/net/tipc/monitor.c
+++ b/net/tipc/monitor.c
@@ -465,6 +465,8 @@ void tipc_mon_rcv(struct net *net, void *data, u16 dlen, u32 addr,
 	state->probing = false;
 
 	/* Sanity check received domain record */
+	if (new_member_cnt > MAX_MON_DOMAIN)
+		return;
 	if (dlen < dom_rec_len(arrv_dom, 0))
 		return;
 	if (dlen != dom_rec_len(arrv_dom, new_member_cnt))
-- 
GitLab


From d4f7d322a4ad1d1a280f1b1f36df8d0eb855966c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 11 Feb 2022 09:09:03 +0100
Subject: [PATCH 3687/4878] Linux 5.10.100

Link: https://lore.kernel.org/r/20220209191248.892853405@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Slade Watkins <slade@sladewatkins.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 593638785d293..fb96cca42ddb5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 99
+SUBLEVEL = 100
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 461f3010c235746fce310096bcaf9c86cdf83209 Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Tue, 8 Feb 2022 16:53:23 -0800
Subject: [PATCH 3688/4878] ANDROID: kleaf: make a note to sync
 define_common_kernels() and KMI_SYMBOL_LIST(S).

Right now, define_common_kernels() uses a logic
    kmi_symbol_lists = glob(["android/abi_gki_aarch64*"])
as the list of KMI symbols for aarch64 non debug builds.
If the list differs from
KMI_SYMBOL_LIST and ADDITIONAL_KMI_SYMBOL_LISTS,
the value needs to be manually overridden.

In addition, define_common_kernels() sets
    trim_nonlisted_kmi = not kmi_symbol_lists.empty()
for aarch64 non debug builds. If this value differs from
TRIM_NONLISTED_KMI, the value needs to be manually overriden.

To ensure that they don't get out of sync, add a note
in both places to keep them in sync.

In the future, we can load values from build.config like we
did for CLANG_VERSION in build.config.common. Then, this note
can be deleted.

Bug: 215745244
Test: none

Change-Id: I7e2c62e7dd97c6b06f4d628c3c8672922e99aaee
Signed-off-by: Yifan Hong <elsk@google.com>
---
 BUILD.bazel              | 4 ++++
 build.config.gki.aarch64 | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/BUILD.bazel b/BUILD.bazel
index ad7ed991a3304..885571722c526 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -19,4 +19,8 @@ package(
 
 load("//build/kernel/kleaf:common_kernels.bzl", "define_common_kernels")
 
+# This uses android/abi_gki_aarch64* in kmi_configs. If the list of
+# glob(["android/abi_gki_aarch64*"]) differs from
+# KMI_SYMBOL_LIST + ADDITIONAL_KMI_SYMBOL_LISTS in build.config.gki.aarch64,
+# or TRIM_NONLISTED_KMI changes, override kmi_configs here.
 define_common_kernels()
diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
index 5439e64e4c03d..924e955d4f707 100644
--- a/build.config.gki.aarch64
+++ b/build.config.gki.aarch64
@@ -7,6 +7,8 @@ Image.lz4
 "
 
 TIDY_ABI=1
+# Sync with BUILD.bazel, define_common_kernels() if the list differs from
+# android/abi_gki_aarch64* in the filesystem.
 KMI_SYMBOL_LIST=android/abi_gki_aarch64
 ADDITIONAL_KMI_SYMBOL_LISTS="
 android/abi_gki_aarch64_core
@@ -21,6 +23,7 @@ FILES="${FILES}
 arch/arm64/boot/Image.lz4
 "
 
+# Sync with BUILD.bazel, define_common_kernels() if the value is not 1.
 TRIM_NONLISTED_KMI=${TRIM_NONLISTED_KMI:-1}
 KMI_SYMBOL_LIST_STRICT_MODE=${KMI_SYMBOL_LIST_STRICT_MODE:-1}
 
-- 
GitLab


From 7f148c6c557ca73efc55f6395f5b629b07298460 Mon Sep 17 00:00:00 2001
From: Konstantin Vyshetsky <vkon@google.com>
Date: Mon, 13 Dec 2021 17:12:03 -0800
Subject: [PATCH 3689/4878] f2fs: move discard parameters into
 discard_cmd_control

This patch unifies parameters related to how often discard is issued and
how many requests go out at the same time by placing them in
discard_cmd_control. The move will allow the parameters to be modified
in the future without relying on hard-coded values.

Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/f2fs.h    |  4 ++++
 fs/f2fs/segment.c | 22 +++++++++++++---------
 2 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4d4ad50d4ca2a..6a20f549fea9d 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -396,6 +396,10 @@ struct discard_cmd_control {
 	struct mutex cmd_lock;
 	unsigned int nr_discards;		/* # of discards in the list */
 	unsigned int max_discards;		/* max. discards to be issued */
+	unsigned int max_discard_request;	/* max. discard request per round */
+	unsigned int min_discard_issue_time;	/* min. interval between discard issue */
+	unsigned int mid_discard_issue_time;	/* mid. interval between discard issue */
+	unsigned int max_discard_issue_time;	/* max. interval between discard issue */
 	unsigned int discard_granularity;	/* discard granularity */
 	unsigned int undiscard_blks;		/* # of undiscard blocks */
 	unsigned int next_pos;			/* next discard position */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index df410a97731cb..296c271eb7d85 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1159,14 +1159,14 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
 	dpolicy->ordered = false;
 	dpolicy->granularity = granularity;
 
-	dpolicy->max_requests = DEF_MAX_DISCARD_REQUEST;
+	dpolicy->max_requests = dcc->max_discard_request;
 	dpolicy->io_aware_gran = MAX_PLIST_NUM;
 	dpolicy->timeout = false;
 
 	if (discard_type == DPOLICY_BG) {
-		dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
-		dpolicy->mid_interval = DEF_MID_DISCARD_ISSUE_TIME;
-		dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
+		dpolicy->min_interval = dcc->min_discard_issue_time;
+		dpolicy->mid_interval = dcc->mid_discard_issue_time;
+		dpolicy->max_interval = dcc->max_discard_issue_time;
 		dpolicy->io_aware = true;
 		dpolicy->sync = false;
 		dpolicy->ordered = true;
@@ -1174,12 +1174,12 @@ static void __init_discard_policy(struct f2fs_sb_info *sbi,
 			dpolicy->granularity = 1;
 			if (atomic_read(&dcc->discard_cmd_cnt))
 				dpolicy->max_interval =
-					DEF_MIN_DISCARD_ISSUE_TIME;
+					dcc->min_discard_issue_time;
 		}
 	} else if (discard_type == DPOLICY_FORCE) {
-		dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
-		dpolicy->mid_interval = DEF_MID_DISCARD_ISSUE_TIME;
-		dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
+		dpolicy->min_interval = dcc->min_discard_issue_time;
+		dpolicy->mid_interval = dcc->mid_discard_issue_time;
+		dpolicy->max_interval = dcc->max_discard_issue_time;
 		dpolicy->io_aware = false;
 	} else if (discard_type == DPOLICY_FSTRIM) {
 		dpolicy->io_aware = false;
@@ -1784,7 +1784,7 @@ static int issue_discard_thread(void *data)
 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
 	wait_queue_head_t *q = &dcc->discard_wait_queue;
 	struct discard_policy dpolicy;
-	unsigned int wait_ms = DEF_MIN_DISCARD_ISSUE_TIME;
+	unsigned int wait_ms = dcc->min_discard_issue_time;
 	int issued;
 
 	set_freezable();
@@ -2183,6 +2183,10 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
 	atomic_set(&dcc->discard_cmd_cnt, 0);
 	dcc->nr_discards = 0;
 	dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg;
+	dcc->max_discard_request = DEF_MAX_DISCARD_REQUEST;
+	dcc->min_discard_issue_time = DEF_MIN_DISCARD_ISSUE_TIME;
+	dcc->mid_discard_issue_time = DEF_MID_DISCARD_ISSUE_TIME;
+	dcc->max_discard_issue_time = DEF_MAX_DISCARD_ISSUE_TIME;
 	dcc->undiscard_blks = 0;
 	dcc->next_pos = 0;
 	dcc->root = RB_ROOT_CACHED;
-- 
GitLab


From 7fa3e73d192be0daddf56992e537989caf76b166 Mon Sep 17 00:00:00 2001
From: Konstantin Vyshetsky <vkon@google.com>
Date: Mon, 13 Dec 2021 17:12:43 -0800
Subject: [PATCH 3690/4878] f2fs: expose discard related parameters in sysfs

This patch exposes max_discard_request, min_discard_issue_time,
mid_discard_issue_time, and max_discard_issue_time in sysfs. This will
allow the user to fine tune discard operations.

Signed-off-by: Konstantin Vyshetsky <vkon@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs | 27 +++++++++++++++++++++++++
 fs/f2fs/sysfs.c                         |  8 ++++++++
 2 files changed, 35 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 9beb2b650f167..73fafb61a57e1 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -98,6 +98,33 @@ Description:	Controls the issue rate of discard commands that consist of small
 		checkpoint is triggered, and issued during the checkpoint.
 		By default, it is disabled with 0.
 
+What:		/sys/fs/f2fs/<disk>/max_discard_request
+Date:		December 2021
+Contact:	"Konstantin Vyshetsky" <vkon@google.com>
+Description:	Controls the number of discards a thread will issue at a time.
+		Higher number will allow the discard thread to finish its work
+		faster, at the cost of higher latency for incomming I/O.
+
+What:		/sys/fs/f2fs/<disk>/min_discard_issue_time
+Date:		December 2021
+Contact:	"Konstantin Vyshetsky" <vkon@google.com>
+Description:	Controls the interval the discard thread will wait between
+		issuing discard requests when there are discards to be issued and
+		no I/O aware interruptions occur.
+
+What:		/sys/fs/f2fs/<disk>/mid_discard_issue_time
+Date:		December 2021
+Contact:	"Konstantin Vyshetsky" <vkon@google.com>
+Description:	Controls the interval the discard thread will wait between
+		issuing discard requests when there are discards to be issued and
+		an I/O aware interruption occurs.
+
+What:		/sys/fs/f2fs/<disk>/max_discard_issue_time
+Date:		December 2021
+Contact:	"Konstantin Vyshetsky" <vkon@google.com>
+Description:	Controls the interval the discard thread will wait when there are
+		no discard operations to be issued.
+
 What:		/sys/fs/f2fs/<disk>/discard_granularity
 Date:		July 2017
 Contact:	"Chao Yu" <yuchao0@huawei.com>
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 5a381d0fe4a47..b436ec020da99 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -717,6 +717,10 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
+F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_discard_request, max_discard_request);
+F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, min_discard_issue_time, min_discard_issue_time);
+F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, mid_discard_issue_time, mid_discard_issue_time);
+F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_discard_issue_time, max_discard_issue_time);
 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
 F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
@@ -833,6 +837,10 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(reclaim_segments),
 	ATTR_LIST(main_blkaddr),
 	ATTR_LIST(max_small_discards),
+	ATTR_LIST(max_discard_request),
+	ATTR_LIST(min_discard_issue_time),
+	ATTR_LIST(mid_discard_issue_time),
+	ATTR_LIST(max_discard_issue_time),
 	ATTR_LIST(discard_granularity),
 	ATTR_LIST(pending_discard),
 	ATTR_LIST(batched_trim_sections),
-- 
GitLab


From 4af7ca6cc2666d336ef64f3039678028273c7ebe Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 4 Feb 2022 11:21:14 +0800
Subject: [PATCH 3691/4878] f2fs: fix to unlock page correctly in error path of
 is_alive()

As Pavel Machek reported in below link [1]:

After commit 77900c45ee5c ("f2fs: fix to do sanity check in is_alive()"),
node page should be unlock via calling f2fs_put_page() in the error path
of is_alive(), otherwise, f2fs may hang when it tries to lock the node
page, fix it.

[1] https://lore.kernel.org/stable/20220124203637.GA19321@duo.ucw.cz/

Fixes: 77900c45ee5c ("f2fs: fix to do sanity check in is_alive()")
Cc: <stable@vger.kernel.org>
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/gc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 7a486bbf9c07f..8ab4b40c12c57 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1038,8 +1038,10 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 	}
 
-	if (f2fs_check_nid_range(sbi, dni->ino))
+	if (f2fs_check_nid_range(sbi, dni->ino)) {
+		f2fs_put_page(node_page, 1);
 		return false;
+	}
 
 	*nofs = ofs_of_node(node_page);
 	source_blkaddr = data_blkaddr(NULL, node_page, ofs_in_node);
-- 
GitLab


From a3bb3ae25ecde49fa6710dbe0aebe3240634d5f4 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 4 Feb 2022 08:34:10 +0800
Subject: [PATCH 3692/4878] f2fs: adjust readahead block number during recovery

In a fragmented image, entries in dnode block list may locate in
incontiguous physical block address space, however, in recovery flow,
we will always readahead BIO_MAX_VECS size blocks, so in such case,
current readahead policy is low efficient, let's adjust readahead
window size dynamically based on consecutiveness of dnode blocks.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c |  8 ++++++--
 fs/f2fs/f2fs.h       |  6 +++++-
 fs/f2fs/recovery.c   | 27 ++++++++++++++++++++++++---
 3 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index c7a6d48e0da47..8d18a6129b2de 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -282,18 +282,22 @@ out:
 	return blkno - start;
 }
 
-void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index)
+void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
+							unsigned int ra_blocks)
 {
 	struct page *page;
 	bool readahead = false;
 
+	if (ra_blocks == RECOVERY_MIN_RA_BLOCKS)
+		return;
+
 	page = find_get_page(META_MAPPING(sbi), index);
 	if (!page || !PageUptodate(page))
 		readahead = true;
 	f2fs_put_page(page, 0);
 
 	if (readahead)
-		f2fs_ra_meta_pages(sbi, index, BIO_MAX_PAGES, META_POR, true);
+		f2fs_ra_meta_pages(sbi, index, ra_blocks, META_POR, true);
 }
 
 static int __f2fs_write_meta_page(struct page *page,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 6a20f549fea9d..38a7012b85feb 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -588,6 +588,9 @@ enum {
 /* number of extent info in extent cache we try to shrink */
 #define EXTENT_CACHE_SHRINK_NUMBER	128
 
+#define RECOVERY_MAX_RA_BLOCKS		BIO_MAX_PAGES
+#define RECOVERY_MIN_RA_BLOCKS		1
+
 struct rb_entry {
 	struct rb_node rb_node;		/* rb node located in rb-tree */
 	union {
@@ -3646,7 +3649,8 @@ bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
 					block_t blkaddr, int type);
 int f2fs_ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages,
 			int type, bool sync);
-void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index);
+void f2fs_ra_meta_pages_cond(struct f2fs_sb_info *sbi, pgoff_t index,
+							unsigned int ra_blocks);
 long f2fs_sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
 			long nr_to_write, enum iostat_type io_type);
 void f2fs_add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index be784f983b4a9..9d1d249032edb 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -342,6 +342,19 @@ static int recover_inode(struct inode *inode, struct page *page)
 	return 0;
 }
 
+static unsigned int adjust_por_ra_blocks(struct f2fs_sb_info *sbi,
+				unsigned int ra_blocks, unsigned int blkaddr,
+				unsigned int next_blkaddr)
+{
+	if (blkaddr + 1 == next_blkaddr)
+		ra_blocks = min_t(unsigned int, RECOVERY_MAX_RA_BLOCKS,
+							ra_blocks * 2);
+	else if (next_blkaddr % sbi->blocks_per_seg)
+		ra_blocks = max_t(unsigned int, RECOVERY_MIN_RA_BLOCKS,
+							ra_blocks / 2);
+	return ra_blocks;
+}
+
 static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
 				bool check_only)
 {
@@ -349,6 +362,7 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head,
 	struct page *page = NULL;
 	block_t blkaddr;
 	unsigned int loop_cnt = 0;
+	unsigned int ra_blocks = RECOVERY_MAX_RA_BLOCKS;
 	unsigned int free_blocks = MAIN_SEGS(sbi) * sbi->blocks_per_seg -
 						valid_user_blocks(sbi);
 	int err = 0;
@@ -423,11 +437,14 @@ next:
 			break;
 		}
 
+		ra_blocks = adjust_por_ra_blocks(sbi, ra_blocks, blkaddr,
+						next_blkaddr_of_node(page));
+
 		/* check next segment */
 		blkaddr = next_blkaddr_of_node(page);
 		f2fs_put_page(page, 1);
 
-		f2fs_ra_meta_pages_cond(sbi, blkaddr);
+		f2fs_ra_meta_pages_cond(sbi, blkaddr, ra_blocks);
 	}
 	return err;
 }
@@ -704,6 +721,7 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
 	struct page *page = NULL;
 	int err = 0;
 	block_t blkaddr;
+	unsigned int ra_blocks = RECOVERY_MAX_RA_BLOCKS;
 
 	/* get node pages in the current segment */
 	curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
@@ -715,8 +733,6 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
 		if (!f2fs_is_valid_blkaddr(sbi, blkaddr, META_POR))
 			break;
 
-		f2fs_ra_meta_pages_cond(sbi, blkaddr);
-
 		page = f2fs_get_tmp_page(sbi, blkaddr);
 		if (IS_ERR(page)) {
 			err = PTR_ERR(page);
@@ -759,9 +775,14 @@ static int recover_data(struct f2fs_sb_info *sbi, struct list_head *inode_list,
 		if (entry->blkaddr == blkaddr)
 			list_move_tail(&entry->list, tmp_inode_list);
 next:
+		ra_blocks = adjust_por_ra_blocks(sbi, ra_blocks, blkaddr,
+						next_blkaddr_of_node(page));
+
 		/* check next segment */
 		blkaddr = next_blkaddr_of_node(page);
 		f2fs_put_page(page, 1);
+
+		f2fs_ra_meta_pages_cond(sbi, blkaddr, ra_blocks);
 	}
 	if (!err)
 		f2fs_allocate_new_segments(sbi);
-- 
GitLab


From 95c5bd71d4e9582d7bbf01c1dc00352ee7dd3c87 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 4 Feb 2022 15:19:46 +0800
Subject: [PATCH 3693/4878] f2fs: introduce F2FS_IPU_HONOR_OPU_WRITE ipu policy

Once F2FS_IPU_FORCE policy is enabled in some cases:
a) f2fs forces to use F2FS_IPU_FORCE in a small-sized volume
b) user sets F2FS_IPU_FORCE policy via sysfs

Then we may fail to defragment file due to IPU policy check, it doesn't
make sense, let's introduce a new IPU policy to allow OPU during file
defragmentation.

In small-sized volume, let's enable F2FS_IPU_HONOR_OPU_WRITE policy
by default.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs |  3 ++-
 fs/f2fs/data.c                          | 18 +++++++++++++-----
 fs/f2fs/f2fs.h                          |  3 ++-
 fs/f2fs/file.c                          | 18 +++++++++++-------
 fs/f2fs/segment.h                       |  5 ++++-
 fs/f2fs/super.c                         |  3 ++-
 6 files changed, 34 insertions(+), 16 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 73fafb61a57e1..e62c403f7240f 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -55,8 +55,9 @@ Description:	Controls the in-place-update policy.
 		0x04  F2FS_IPU_UTIL
 		0x08  F2FS_IPU_SSR_UTIL
 		0x10  F2FS_IPU_FSYNC
-		0x20  F2FS_IPU_ASYNC,
+		0x20  F2FS_IPU_ASYNC
 		0x40  F2FS_IPU_NOCACHE
+		0x80  F2FS_IPU_HONOR_OPU_WRITE
 		====  =================
 
 		Refer segment.h for details.
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 811bea00d6176..343a9be6350d3 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2483,6 +2483,9 @@ static inline bool check_inplace_update_policy(struct inode *inode,
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	unsigned int policy = SM_I(sbi)->ipu_policy;
 
+	if (policy & (0x1 << F2FS_IPU_HONOR_OPU_WRITE) &&
+			is_inode_flag_set(inode, FI_OPU_WRITE))
+		return false;
 	if (policy & (0x1 << F2FS_IPU_FORCE))
 		return true;
 	if (policy & (0x1 << F2FS_IPU_SSR) && f2fs_need_SSR(sbi))
@@ -2553,6 +2556,9 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
 	if (is_inode_flag_set(inode, FI_ALIGNED_WRITE))
 		return true;
 
+	if (is_inode_flag_set(inode, FI_OPU_WRITE))
+		return true;
+
 	if (fio) {
 		if (page_private_gcing(fio->page))
 			return true;
@@ -3177,8 +3183,8 @@ static int __f2fs_write_data_pages(struct address_space *mapping,
 			f2fs_available_free_memory(sbi, DIRTY_DENTS))
 		goto skip_write;
 
-	/* skip writing during file defragment */
-	if (is_inode_flag_set(inode, FI_DO_DEFRAG))
+	/* skip writing in file defragment preparing stage */
+	if (is_inode_flag_set(inode, FI_SKIP_WRITES))
 		goto skip_write;
 
 	trace_f2fs_writepages(mapping->host, wbc, DATA);
@@ -3748,6 +3754,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 	f2fs_down_write(&F2FS_I(inode)->i_mmap_sem);
 
 	set_inode_flag(inode, FI_ALIGNED_WRITE);
+	set_inode_flag(inode, FI_OPU_WRITE);
 
 	for (; secidx < end_sec; secidx++) {
 		f2fs_down_write(&sbi->pin_sem);
@@ -3756,7 +3763,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 		f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
 		f2fs_unlock_op(sbi);
 
-		set_inode_flag(inode, FI_DO_DEFRAG);
+		set_inode_flag(inode, FI_SKIP_WRITES);
 
 		for (blkofs = 0; blkofs < blk_per_sec; blkofs++) {
 			struct page *page;
@@ -3773,7 +3780,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 			f2fs_put_page(page, 1);
 		}
 
-		clear_inode_flag(inode, FI_DO_DEFRAG);
+		clear_inode_flag(inode, FI_SKIP_WRITES);
 
 		ret = filemap_fdatawrite(inode->i_mapping);
 
@@ -3784,7 +3791,8 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
 	}
 
 done:
-	clear_inode_flag(inode, FI_DO_DEFRAG);
+	clear_inode_flag(inode, FI_SKIP_WRITES);
+	clear_inode_flag(inode, FI_OPU_WRITE);
 	clear_inode_flag(inode, FI_ALIGNED_WRITE);
 
 	f2fs_up_write(&F2FS_I(inode)->i_mmap_sem);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 38a7012b85feb..80ac87afddbb0 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -738,7 +738,8 @@ enum {
 	FI_DROP_CACHE,		/* drop dirty page cache */
 	FI_DATA_EXIST,		/* indicate data exists */
 	FI_INLINE_DOTS,		/* indicate inline dot dentries */
-	FI_DO_DEFRAG,		/* indicate defragment is running */
+	FI_SKIP_WRITES,		/* should skip data page writeback */
+	FI_OPU_WRITE,		/* used for opu per file */
 	FI_DIRTY_FILE,		/* indicate regular/symlink has dirty pages */
 	FI_PREALLOCATED_ALL,	/* all blocks for write were preallocated */
 	FI_HOT_DATA,		/* indicate file is hot */
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2affa9fa97529..5b3ad2257687c 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2614,10 +2614,6 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 	bool fragmented = false;
 	int err;
 
-	/* if in-place-update policy is enabled, don't waste time here */
-	if (f2fs_should_update_inplace(inode, NULL))
-		return -EINVAL;
-
 	pg_start = range->start >> PAGE_SHIFT;
 	pg_end = (range->start + range->len) >> PAGE_SHIFT;
 
@@ -2625,6 +2621,13 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 
 	inode_lock(inode);
 
+	/* if in-place-update policy is enabled, don't waste time here */
+	set_inode_flag(inode, FI_OPU_WRITE);
+	if (f2fs_should_update_inplace(inode, NULL)) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	/* writeback all dirty pages in the range */
 	err = filemap_write_and_wait_range(inode->i_mapping, range->start,
 						range->start + range->len - 1);
@@ -2706,7 +2709,7 @@ do_map:
 			goto check;
 		}
 
-		set_inode_flag(inode, FI_DO_DEFRAG);
+		set_inode_flag(inode, FI_SKIP_WRITES);
 
 		idx = map.m_lblk;
 		while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
@@ -2731,15 +2734,16 @@ check:
 		if (map.m_lblk < pg_end && cnt < blk_per_seg)
 			goto do_map;
 
-		clear_inode_flag(inode, FI_DO_DEFRAG);
+		clear_inode_flag(inode, FI_SKIP_WRITES);
 
 		err = filemap_fdatawrite(inode->i_mapping);
 		if (err)
 			goto out;
 	}
 clear_out:
-	clear_inode_flag(inode, FI_DO_DEFRAG);
+	clear_inode_flag(inode, FI_SKIP_WRITES);
 out:
+	clear_inode_flag(inode, FI_OPU_WRITE);
 	inode_unlock(inode);
 	if (!err)
 		range->len = (u64)total << PAGE_SHIFT;
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 3c01315931f61..aeb008f2377be 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -651,7 +651,9 @@ static inline int utilization(struct f2fs_sb_info *sbi)
  *                     pages over min_fsync_blocks. (=default option)
  * F2FS_IPU_ASYNC - do IPU given by asynchronous write requests.
  * F2FS_IPU_NOCACHE - disable IPU bio cache.
- * F2FS_IPUT_DISABLE - disable IPU. (=default option in LFS mode)
+ * F2FS_IPU_HONOR_OPU_WRITE - use OPU write prior to IPU write if inode has
+ *                            FI_OPU_WRITE flag.
+ * F2FS_IPU_DISABLE - disable IPU. (=default option in LFS mode)
  */
 #define DEF_MIN_IPU_UTIL	70
 #define DEF_MIN_FSYNC_BLOCKS	8
@@ -667,6 +669,7 @@ enum {
 	F2FS_IPU_FSYNC,
 	F2FS_IPU_ASYNC,
 	F2FS_IPU_NOCACHE,
+	F2FS_IPU_HONOR_OPU_WRITE,
 };
 
 static inline unsigned int curseg_segno(struct f2fs_sb_info *sbi,
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index b25636ad10fab..c6668793b49e8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3962,7 +3962,8 @@ static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
 		F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
 		if (f2fs_block_unit_discard(sbi))
 			sm_i->dcc_info->discard_granularity = 1;
-		sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
+		sm_i->ipu_policy = 1 << F2FS_IPU_FORCE |
+					1 << F2FS_IPU_HONOR_OPU_WRITE;
 	}
 
 	sbi->readdir_ra = 1;
-- 
GitLab


From 421c7a5850094d8ffda2d5d20870e8f7c019d639 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 27 Jan 2022 13:31:43 -0800
Subject: [PATCH 3694/4878] f2fs: add a way to limit roll forward recovery time

This adds a sysfs entry to call checkpoint during fsync() in order to avoid
long elapsed time to run roll-forward recovery when booting the device.
Default value doesn't enforce the limitation which is same as before.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs |  6 ++++++
 fs/f2fs/checkpoint.c                    |  1 +
 fs/f2fs/debug.c                         |  3 +++
 fs/f2fs/f2fs.h                          |  3 +++
 fs/f2fs/node.c                          |  2 ++
 fs/f2fs/node.h                          |  3 +++
 fs/f2fs/recovery.c                      |  4 ++++
 fs/f2fs/super.c                         | 14 ++++++++++++--
 fs/f2fs/sysfs.c                         |  2 ++
 9 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index e62c403f7240f..24338eb90d7dd 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -568,3 +568,9 @@ Contact:	"Daeho Jeong" <daehojeong@google.com>
 Description:	You can set the trial count limit for GC urgent high mode with this value.
 		If GC thread gets to the limit, the mode will turn back to GC normal mode.
 		By default, the value is zero, which means there is no limit like before.
+
+What:		/sys/fs/f2fs/<disk>/max_roll_forward_node_blocks
+Date:		January 2022
+Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
+Description:	Controls max # of node block writes to be used for roll forward
+		recovery. This can limit the roll forward recovery time.
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 8d18a6129b2de..4479c6a1ccdf6 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1547,6 +1547,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 	/* update user_block_counts */
 	sbi->last_valid_block_count = sbi->total_valid_block_count;
 	percpu_counter_set(&sbi->alloc_valid_block_count, 0);
+	percpu_counter_set(&sbi->rf_node_block_count, 0);
 
 	/* Here, we have one bio having CP pack except cp pack 2 page */
 	f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 8c50518475a99..9a13902c77026 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -532,6 +532,9 @@ static int stat_show(struct seq_file *s, void *v)
 			   si->ndirty_meta, si->meta_pages);
 		seq_printf(s, "  - imeta: %4d\n",
 			   si->ndirty_imeta);
+		seq_printf(s, "  - fsync mark: %4lld\n",
+			   percpu_counter_sum_positive(
+					&si->sbi->rf_node_block_count));
 		seq_printf(s, "  - NATs: %9d/%9d\n  - SITs: %9d/%9d\n",
 			   si->dirty_nats, si->nats, si->dirty_sits, si->sits);
 		seq_printf(s, "  - free_nids: %9d/%9d\n  - alloc_nids: %9d\n",
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 80ac87afddbb0..bc0c2094894a0 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -916,6 +916,7 @@ struct f2fs_nm_info {
 	nid_t max_nid;			/* maximum possible node ids */
 	nid_t available_nids;		/* # of available node ids */
 	nid_t next_scan_nid;		/* the next nid to be scanned */
+	nid_t max_rf_node_blocks;	/* max # of nodes for recovery */
 	unsigned int ram_thresh;	/* control the memory footprint */
 	unsigned int ra_nid_pages;	/* # of nid pages to be readaheaded */
 	unsigned int dirty_nats_ratio;	/* control dirty nats ratio threshold */
@@ -1687,6 +1688,8 @@ struct f2fs_sb_info {
 	atomic_t nr_pages[NR_COUNT_TYPE];
 	/* # of allocated blocks */
 	struct percpu_counter alloc_valid_block_count;
+	/* # of node block writes as roll forward recovery */
+	struct percpu_counter rf_node_block_count;
 
 	/* writeback control */
 	atomic_t wb_sync_req[META];	/* count # of WB_SYNC threads */
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 6ce0d7e92cac2..45bc2f93e5a30 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1782,6 +1782,7 @@ continue_unlock:
 
 			if (!atomic || page == last_page) {
 				set_fsync_mark(page, 1);
+				percpu_counter_inc(&sbi->rf_node_block_count);
 				if (IS_INODE(page)) {
 					if (is_inode_flag_set(inode,
 								FI_DIRTY_INODE))
@@ -3218,6 +3219,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
 	nm_i->ram_thresh = DEF_RAM_THRESHOLD;
 	nm_i->ra_nid_pages = DEF_RA_NID_PAGES;
 	nm_i->dirty_nats_ratio = DEF_DIRTY_NAT_RATIO_THRESHOLD;
+	nm_i->max_rf_node_blocks = DEF_RF_NODE_BLOCKS;
 
 	INIT_RADIX_TREE(&nm_i->free_nid_root, GFP_ATOMIC);
 	INIT_LIST_HEAD(&nm_i->free_nid_list);
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index 18b98cf0465b8..4c1d34bfea781 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -31,6 +31,9 @@
 /* control total # of nats */
 #define DEF_NAT_CACHE_THRESHOLD			100000
 
+/* control total # of node writes used for roll-fowrad recovery */
+#define DEF_RF_NODE_BLOCKS			0
+
 /* vector size for gang look-up from nat cache that consists of radix tree */
 #define NATVEC_SIZE	64
 #define SETVEC_SIZE	32
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 9d1d249032edb..329ae992ee0eb 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -55,6 +55,10 @@ bool f2fs_space_for_roll_forward(struct f2fs_sb_info *sbi)
 
 	if (sbi->last_valid_block_count + nalloc > sbi->user_block_count)
 		return false;
+	if (NM_I(sbi)->max_rf_node_blocks &&
+		percpu_counter_sum_positive(&sbi->rf_node_block_count) >=
+						NM_I(sbi)->max_rf_node_blocks)
+		return false;
 	return true;
 }
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c6668793b49e8..547ab5a7e8203 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1512,8 +1512,9 @@ static void f2fs_free_inode(struct inode *inode)
 
 static void destroy_percpu_info(struct f2fs_sb_info *sbi)
 {
-	percpu_counter_destroy(&sbi->alloc_valid_block_count);
 	percpu_counter_destroy(&sbi->total_valid_inode_count);
+	percpu_counter_destroy(&sbi->rf_node_block_count);
+	percpu_counter_destroy(&sbi->alloc_valid_block_count);
 }
 
 static void destroy_device_list(struct f2fs_sb_info *sbi)
@@ -3631,11 +3632,20 @@ static int init_percpu_info(struct f2fs_sb_info *sbi)
 	if (err)
 		return err;
 
+	err = percpu_counter_init(&sbi->rf_node_block_count, 0, GFP_KERNEL);
+	if (err)
+		goto err_valid_block;
+
 	err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
 								GFP_KERNEL);
 	if (err)
-		percpu_counter_destroy(&sbi->alloc_valid_block_count);
+		goto err_node_block;
+	return 0;
 
+err_node_block:
+	percpu_counter_destroy(&sbi->rf_node_block_count);
+err_valid_block:
+	percpu_counter_destroy(&sbi->alloc_valid_block_count);
 	return err;
 }
 
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index b436ec020da99..9c6c5de6de7a1 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -733,6 +733,7 @@ F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
+F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, max_roll_forward_node_blocks, max_rf_node_blocks);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
@@ -856,6 +857,7 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(ram_thresh),
 	ATTR_LIST(ra_nid_pages),
 	ATTR_LIST(dirty_nats_ratio),
+	ATTR_LIST(max_roll_forward_node_blocks),
 	ATTR_LIST(cp_interval),
 	ATTR_LIST(idle_interval),
 	ATTR_LIST(discard_idle_interval),
-- 
GitLab


From 2c1cfeb9749e04ff8e2cddacfe4ca95b2548578b Mon Sep 17 00:00:00 2001
From: Petri Gynther <pgynther@google.com>
Date: Fri, 11 Feb 2022 11:09:17 -0800
Subject: [PATCH 3695/4878] ANDROID: GKI: enable softlockup detector

Enable kernel softlockup detector to mirror android13-5.15 GKI config.

If desired, this feature can be disabled with command line parameter:
nowatchdog (or nosoftlockup)

Bug: 168445946
Signed-off-by: Petri Gynther <pgynther@google.com>
Change-Id: I1df3f9a7da225b0bc2755b244d14100929f7c85f
---
 arch/arm64/configs/gki_defconfig | 2 +-
 arch/x86/configs/gki_defconfig   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 88755d1adeb1d..4e00698eb76e0 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -693,7 +693,7 @@ CONFIG_KFENCE_SAMPLE_INTERVAL=500
 CONFIG_KFENCE_NUM_OBJECTS=63
 CONFIG_PANIC_ON_OOPS=y
 CONFIG_PANIC_TIMEOUT=-1
-CONFIG_DETECT_HUNG_TASK=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_WQ_WATCHDOG=y
 CONFIG_SCHEDSTATS=y
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 371dc3f0f84dc..f2405d9489d53 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -624,7 +624,7 @@ CONFIG_KFENCE_SAMPLE_INTERVAL=500
 CONFIG_KFENCE_NUM_OBJECTS=63
 CONFIG_PANIC_ON_OOPS=y
 CONFIG_PANIC_TIMEOUT=-1
-CONFIG_DETECT_HUNG_TASK=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_WQ_WATCHDOG=y
 CONFIG_SCHEDSTATS=y
 CONFIG_BUG_ON_DATA_CORRUPTION=y
-- 
GitLab


From 00e3210a2faa2057fc142367e7e1be886479cf02 Mon Sep 17 00:00:00 2001
From: Kyle Tso <kyletso@google.com>
Date: Sat, 6 Nov 2021 00:44:36 +0800
Subject: [PATCH 3696/4878] ANDROID: usb: typec: tcpm: Add vendor hook to
 modify port src caps

Add a vendor hook to modify the port Source Capabilities. If the caps
are changed and the port state is feasible, start a Power Negotiation
AMS to update the current contract to the new one.

Bug: 201006190
Bug: 206108037
Signed-off-by: Kyle Tso <kyletso@google.com>
Change-Id: I8b524242353781cb39b3ba85c6a75bd5a204ebcf
---
 drivers/android/vendor_hooks.c |  1 +
 drivers/usb/typec/tcpm/tcpm.c  | 29 +++++++++++++++++++++++++++++
 include/trace/hooks/typec.h    |  6 +++++-
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 41ce8e3e140d2..09f371d07a582 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -381,3 +381,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_modify_thermal_target_freq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_power_throttle);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_thermal_power_cap);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_get_thermal_zone_device);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_typec_tcpm_modify_src_caps);
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index de37166cdad07..fed8153ea7f09 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -5446,9 +5446,38 @@ static void tcpm_pd_event_handler(struct kthread_work *work)
 		}
 		if (events & TCPM_CC_EVENT) {
 			enum typec_cc_status cc1, cc2;
+			bool modified = false;
 
 			if (port->tcpc->get_cc(port->tcpc, &cc1, &cc2) == 0)
 				_tcpm_cc_change(port, cc1, cc2);
+
+			trace_android_vh_typec_tcpm_modify_src_caps(&port->nr_src_pdo,
+								    &port->src_pdo, &modified);
+			if (modified) {
+				int ret;
+
+				switch (port->state) {
+				case SRC_UNATTACHED:
+				case SRC_ATTACH_WAIT:
+				case SRC_TRYWAIT:
+					tcpm_set_cc(port, tcpm_rp_cc(port));
+					break;
+				case SRC_SEND_CAPABILITIES:
+				case SRC_SEND_CAPABILITIES_TIMEOUT:
+				case SRC_NEGOTIATE_CAPABILITIES:
+				case SRC_READY:
+				case SRC_WAIT_NEW_CAPABILITIES:
+					port->caps_count = 0;
+					port->upcoming_state = SRC_SEND_CAPABILITIES;
+					ret = tcpm_ams_start(port, POWER_NEGOTIATION);
+					if (ret == -EAGAIN)
+						port->upcoming_state = INVALID_STATE;
+					break;
+				default:
+					break;
+				}
+			}
+
 		}
 		if (events & TCPM_FRS_EVENT) {
 			if (port->state == SNK_READY) {
diff --git a/include/trace/hooks/typec.h b/include/trace/hooks/typec.h
index f871511240758..b7be4d8577081 100644
--- a/include/trace/hooks/typec.h
+++ b/include/trace/hooks/typec.h
@@ -62,6 +62,10 @@ DECLARE_HOOK(android_vh_typec_tcpm_log,
 	TP_PROTO(const char *log, bool *bypass),
 	TP_ARGS(log, bypass));
 
-#endif /* _TRACE_HOOK_UFSHCD_H */
+DECLARE_HOOK(android_vh_typec_tcpm_modify_src_caps,
+	TP_PROTO(unsigned int *nr_src_pdo, u32 (*src_pdo)[PDO_MAX_OBJECTS], bool *modified),
+	TP_ARGS(nr_src_pdo, src_pdo, modified));
+
+#endif /* _TRACE_HOOK_TYPEC_H */
 /* This part must be outside protection */
 #include <trace/define_trace.h>
-- 
GitLab


From 7a44906686048bdcecb7dfa4fac02c4ad7f6cd06 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Thu, 10 Feb 2022 14:02:04 -0800
Subject: [PATCH 3697/4878] ANDROID: GKI: export cma_get_size

Export cma_get_size to tell cma instance's size, which is needed
to allocate entire pages of the cma.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ifb2769f60250ce605236342b950907218e1c28a5
---
 mm/cma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/cma.c b/mm/cma.c
index 47538607045eb..ae36ce52c215e 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -54,6 +54,7 @@ unsigned long cma_get_size(const struct cma *cma)
 {
 	return cma->count << PAGE_SHIFT;
 }
+EXPORT_SYMBOL_GPL(cma_get_size);
 
 const char *cma_get_name(const struct cma *cma)
 {
-- 
GitLab


From e5c6bb9cdbc321f946ff7b970316acc274d0779f Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Thu, 19 Aug 2021 19:04:30 -0700
Subject: [PATCH 3698/4878] UPSTREAM: kfence: fix is_kfence_address() for
 addresses below KFENCE_POOL_SIZE

Originally the addr != NULL check was meant to take care of the case
where __kfence_pool == NULL (KFENCE is disabled).  However, this does
not work for addresses where addr > 0 && addr < KFENCE_POOL_SIZE.

This can be the case on NULL-deref where addr > 0 && addr < PAGE_SIZE or
any other faulting access with addr < KFENCE_POOL_SIZE.  While the
kernel would likely crash, the stack traces and report might be
confusing due to double faults upon KFENCE's attempt to unprotect such
an address.

Fix it by just checking that __kfence_pool != NULL instead.

Link: https://lkml.kernel.org/r/20210818130300.2482437-1-elver@google.com
Fixes: 0ce20dd84089 ("mm: add Kernel Electric-Fence infrastructure")
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Acked-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>    [5.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit a7cb5d23eaea148f8582229846f8dfff192f05c3)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ib2b380ffb4f716bf2d7120be0abaabb655982467
---
 include/linux/kfence.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/kfence.h b/include/linux/kfence.h
index a70d1ea035325..3fe6dd8a18c19 100644
--- a/include/linux/kfence.h
+++ b/include/linux/kfence.h
@@ -51,10 +51,11 @@ extern atomic_t kfence_allocation_gate;
 static __always_inline bool is_kfence_address(const void *addr)
 {
 	/*
-	 * The non-NULL check is required in case the __kfence_pool pointer was
-	 * never initialized; keep it in the slow-path after the range-check.
+	 * The __kfence_pool != NULL check is required to deal with the case
+	 * where __kfence_pool == NULL && addr < KFENCE_POOL_SIZE. Keep it in
+	 * the slow-path after the range-check!
 	 */
-	return unlikely((unsigned long)((char *)addr - __kfence_pool) < KFENCE_POOL_SIZE && addr);
+	return unlikely((unsigned long)((char *)addr - __kfence_pool) < KFENCE_POOL_SIZE && __kfence_pool);
 }
 
 /**
-- 
GitLab


From 8d37af48f1a3d76837be5d45ff7a717b26210c8b Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Wed, 25 Aug 2021 12:17:55 -0700
Subject: [PATCH 3699/4878] BACKPORT: mm/memory_hotplug: fix potential
 permanent lru cache disable

If offline_pages failed after lru_cache_disable(), it forgot to do
lru_cache_enable() in error path.  So we would have lru cache disabled
permanently in this case.

Link: https://lkml.kernel.org/r/20210821094246.10149-3-linmiaohe@huawei.com
Fixes: d479960e44f2 ("mm: disable LRU pagevec during the migration temporarily")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Chris Goldsworthy <cgoldswo@codeaurora.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 946746d1ad921e5f493b536533dda02ea22ca609)
[connor: move after appropriate label for 5.10]
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I5947864e4be8bc2d2fc8fb0151a9c6d2c3ea9421
---
 mm/memory_hotplug.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 3803f2d8fab8a..3fd619ab92e97 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1544,7 +1544,7 @@ int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages)
 				       MEMORY_OFFLINE | REPORT_FAILURE, NULL);
 	if (ret) {
 		reason = "failure to isolate range";
-		goto failed_removal;
+		goto failed_removal_lru_cache_disabled;
 	}
 
 	drain_all_pages(zone);
@@ -1659,6 +1659,8 @@ int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages)
 failed_removal_isolated:
 	undo_isolate_page_range(start_pfn, end_pfn, MIGRATE_MOVABLE);
 	memory_notify(MEM_CANCEL_OFFLINE, &arg);
+failed_removal_lru_cache_disabled:
+	lru_cache_enable();
 failed_removal:
 	pr_debug("memory offlining [mem %#010llx-%#010llx] failed due to %s\n",
 		 (unsigned long long) start_pfn << PAGE_SHIFT,
-- 
GitLab


From 2e7174e822d4a357b224803e3f09acd5b1de36ad Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Thu, 9 Sep 2021 04:38:03 +0900
Subject: [PATCH 3700/4878] UPSTREAM: tracing/boot: Fix to loop on only subkeys

Since the commit e5efaeb8a8f5 ("bootconfig: Support mixing
a value and subkeys under a key") allows to co-exist a value
node and key nodes under a node, xbc_node_for_each_child()
is not only returning key node but also a value node.
In the boot-time tracing using xbc_node_for_each_child() to
iterate the events, groups and instances, but those must be
key nodes. Thus it must use xbc_node_for_each_subkey().

Link: https://lkml.kernel.org/r/163112988361.74896.2267026262061819145.stgit@devnote2

Fixes: e5efaeb8a8f5 ("bootconfig: Support mixing a value and subkeys under a key")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
(cherry picked from commit cfd799837dbc48499abb05d1891b3d9992354d3a)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I7cf6b7fbf334edc44e6da1f519f30d467ece6fec
---
 kernel/trace/trace_boot.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c
index 0996d59750ff0..ed3ab7b699a34 100644
--- a/kernel/trace/trace_boot.c
+++ b/kernel/trace/trace_boot.c
@@ -233,8 +233,8 @@ trace_boot_init_events(struct trace_array *tr, struct xbc_node *node)
 	if (!node)
 		return;
 	/* per-event key starts with "event.GROUP.EVENT" */
-	xbc_node_for_each_child(node, gnode)
-		xbc_node_for_each_child(gnode, enode)
+	xbc_node_for_each_subkey(node, gnode)
+		xbc_node_for_each_subkey(gnode, enode)
 			trace_boot_init_one_event(tr, gnode, enode);
 }
 #else
@@ -315,7 +315,7 @@ trace_boot_init_instances(struct xbc_node *node)
 	if (!node)
 		return;
 
-	xbc_node_for_each_child(node, inode) {
+	xbc_node_for_each_subkey(node, inode) {
 		p = xbc_node_get_data(inode);
 		if (!p || *p == '\0')
 			continue;
-- 
GitLab


From ea9e7930f40cfdc1f92ec28512795de826163211 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Fri, 3 Sep 2021 00:03:25 +0200
Subject: [PATCH 3701/4878] UPSTREAM: arm64: dts: qcom: ipq8074: remove USB
 tx-fifo-resize property

tx-fifo-resize is now added by default by the dwc3-qcom driver
to the SNPS DWC3 child node.

So, lets drop the tx-fifo-resize property from dwc3-qcom nodes
as having it there will cause the dwc3-qcom driver to error and
abort probe with:
[    1.362938] dwc3-qcom 8af8800.usb: unable to add property
[    1.368405] dwc3-qcom 8af8800.usb: failed to register DWC3 Core, err=-17

Fixes: cefdd52fa045 ("usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default")
Signed-off-by: Robert Marko <robimarko@gmail.com>
Link: https://lore.kernel.org/r/20210902220325.1783567-1-robimarko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit da546d6b748e570aa6e44acaa515cfc43baeaa0d)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ib339fefca285d118d2f2b8b1566b2f1eb681d31c
---
 arch/arm64/boot/dts/qcom/ipq8074.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
index 776a6b0f61a62..89e5ee6b78cdf 100644
--- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
@@ -433,7 +433,6 @@
 				interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
 				phys = <&qusb_phy_0>, <&usb0_ssphy>;
 				phy-names = "usb2-phy", "usb3-phy";
-				tx-fifo-resize;
 				snps,is-utmi-l1-suspend;
 				snps,hird-threshold = /bits/ 8 <0x0>;
 				snps,dis_u2_susphy_quirk;
@@ -474,7 +473,6 @@
 				interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
 				phys = <&qusb_phy_1>, <&usb1_ssphy>;
 				phy-names = "usb2-phy", "usb3-phy";
-				tx-fifo-resize;
 				snps,is-utmi-l1-suspend;
 				snps,hird-threshold = /bits/ 8 <0x0>;
 				snps,dis_u2_susphy_quirk;
-- 
GitLab


From 607632dcce695ac4b0e76d2e8b4f9272040a5f6b Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@suse.com>
Date: Tue, 7 Sep 2021 14:04:47 +0200
Subject: [PATCH 3702/4878] UPSTREAM: swiotlb-xen: fix late init retry

The commit referenced below removed the assignment of "bytes" from
xen_swiotlb_init() without - like done for xen_swiotlb_init_early() -
adding an assignment on the retry path, thus leading to excessively
sized allocations upon retries.

Fixes: 2d29960af0be ("swiotlb: dynamically allocate io_tlb_default_mem")
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>

Link: https://lore.kernel.org/r/778299d6-9cfd-1c13-026e-25ee5d14ecb3@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
(cherry picked from commit 4c092c59015f7adf0f07685f869edb96d997a756)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I9d496066e2bd9cdb3d54a4fa6e80d05c3734ca95
---
 drivers/xen/swiotlb-xen.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 936403a6ba588..e40902129166c 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -206,8 +206,8 @@ error:
 	if (repeat--) {
 		/* Min is 2MB */
 		nslabs = max(1024UL, (nslabs >> 1));
-		pr_info("Lowering to %luMB\n",
-			(nslabs << IO_TLB_SHIFT) >> 20);
+		bytes = nslabs << IO_TLB_SHIFT;
+		pr_info("Lowering to %luMB\n", bytes >> 20);
 		goto retry;
 	}
 	pr_err("%s (rc:%d)\n", xen_swiotlb_error(m_ret), rc);
-- 
GitLab


From 47a91b01377a7aa6c1fc180d274aba28881d0742 Mon Sep 17 00:00:00 2001
From: Yanfei Xu <yanfei.xu@windriver.com>
Date: Wed, 15 Sep 2021 15:24:26 +0800
Subject: [PATCH 3703/4878] UPSTREAM: blkcg: fix memory leak in
 blk_iolatency_init

BUG: memory leak
unreferenced object 0xffff888129acdb80 (size 96):
  comm "syz-executor.1", pid 12661, jiffies 4294962682 (age 15.220s)
  hex dump (first 32 bytes):
    20 47 c9 85 ff ff ff ff 20 d4 8e 29 81 88 ff ff   G...... ..)....
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff82264ec8>] kmalloc include/linux/slab.h:591 [inline]
    [<ffffffff82264ec8>] kzalloc include/linux/slab.h:721 [inline]
    [<ffffffff82264ec8>] blk_iolatency_init+0x28/0x190 block/blk-iolatency.c:724
    [<ffffffff8225b8c4>] blkcg_init_queue+0xb4/0x1c0 block/blk-cgroup.c:1185
    [<ffffffff822253da>] blk_alloc_queue+0x22a/0x2e0 block/blk-core.c:566
    [<ffffffff8223b175>] blk_mq_init_queue_data block/blk-mq.c:3100 [inline]
    [<ffffffff8223b175>] __blk_mq_alloc_disk+0x25/0xd0 block/blk-mq.c:3124
    [<ffffffff826a9303>] loop_add+0x1c3/0x360 drivers/block/loop.c:2344
    [<ffffffff826a966e>] loop_control_get_free drivers/block/loop.c:2501 [inline]
    [<ffffffff826a966e>] loop_control_ioctl+0x17e/0x2e0 drivers/block/loop.c:2516
    [<ffffffff81597eec>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff81597eec>] __do_sys_ioctl fs/ioctl.c:874 [inline]
    [<ffffffff81597eec>] __se_sys_ioctl fs/ioctl.c:860 [inline]
    [<ffffffff81597eec>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860
    [<ffffffff843fa745>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff843fa745>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae

Once blk_throtl_init() queue init failed, blkcg_iolatency_exit() will
not be invoked for cleanup. That leads a memory leak. Swap the
blk_throtl_init() and blk_iolatency_init() calls can solve this.

Reported-by: syzbot+01321b15cc98e6bf96d6@syzkaller.appspotmail.com
Fixes: 19688d7f9592 (block/blk-cgroup: Swap the blk_throtl_init() and blk_iolatency_init() calls)
Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20210915072426.4022924-1-yanfei.xu@windriver.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 6f5ddde41069fcd1f0993ec76c9dbbf9d021fd4d)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I3152874cb8ac2a1c5e14dde092833baa28c60a51
---
 block/blk-cgroup.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index cca79c06d33dd..22fb1beed49aa 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1182,10 +1182,6 @@ int blkcg_init_queue(struct request_queue *q)
 	if (preloaded)
 		radix_tree_preload_end();
 
-	ret = blk_iolatency_init(q);
-	if (ret)
-		goto err_destroy_all;
-
 	ret = blk_ioprio_init(q);
 	if (ret)
 		goto err_destroy_all;
@@ -1194,6 +1190,12 @@ int blkcg_init_queue(struct request_queue *q)
 	if (ret)
 		goto err_destroy_all;
 
+	ret = blk_iolatency_init(q);
+	if (ret) {
+		blk_throtl_exit(q);
+		goto err_destroy_all;
+	}
+
 	return 0;
 
 err_destroy_all:
-- 
GitLab


From 92ae117a209d5b222c5e9c8a043893846b85b36b Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Wed, 15 Sep 2021 12:03:35 -0700
Subject: [PATCH 3704/4878] UPSTREAM: arm64: add MTE supported check to thread
 switching and syscall entry/exit

This lets us avoid doing unnecessary work on hardware that does not
support MTE, and will allow us to freely use MTE instructions in the
code called by mte_thread_switch().

Since this would mean that we do a redundant check in
mte_check_tfsr_el1(), remove it and add two checks now required in its
callers. This also avoids an unnecessary DSB+ISB sequence on the syscall
exit path for hardware not supporting MTE.

Fixes: 65812c6921cc ("arm64: mte: Enable async tag check fault")
Cc: <stable@vger.kernel.org> # 5.13.x
Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/I02fd000d1ef2c86c7d2952a7f099b254ec227a5d
Link: https://lore.kernel.org/r/20210915190336.398390-1-pcc@google.com
[catalin.marinas@arm.com: adjust the commit log slightly]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 8c8a3b5bd960cd88f7655b5251dc28741e11f139)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I206eafcb65577117853a491c373a2abf849f4a2b
---
 arch/arm64/include/asm/mte.h |  6 ++++++
 arch/arm64/kernel/mte.c      | 10 ++++------
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/include/asm/mte.h b/arch/arm64/include/asm/mte.h
index 58c7f80f55961..c724a288a412d 100644
--- a/arch/arm64/include/asm/mte.h
+++ b/arch/arm64/include/asm/mte.h
@@ -105,11 +105,17 @@ void mte_check_tfsr_el1(void);
 
 static inline void mte_check_tfsr_entry(void)
 {
+	if (!system_supports_mte())
+		return;
+
 	mte_check_tfsr_el1();
 }
 
 static inline void mte_check_tfsr_exit(void)
 {
+	if (!system_supports_mte())
+		return;
+
 	/*
 	 * The asynchronous faults are sync'ed automatically with
 	 * TFSR_EL1 on kernel entry but for exit an explicit dsb()
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index 20a40e5a14fa6..128c442a848e4 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -176,12 +176,7 @@ bool mte_report_once(void)
 #ifdef CONFIG_KASAN_HW_TAGS
 void mte_check_tfsr_el1(void)
 {
-	u64 tfsr_el1;
-
-	if (!system_supports_mte())
-		return;
-
-	tfsr_el1 = read_sysreg_s(SYS_TFSR_EL1);
+	u64 tfsr_el1 = read_sysreg_s(SYS_TFSR_EL1);
 
 	if (unlikely(tfsr_el1 & SYS_TFSR_EL1_TF1)) {
 		/*
@@ -233,6 +228,9 @@ void mte_thread_init_user(void)
 
 void mte_thread_switch(struct task_struct *next)
 {
+	if (!system_supports_mte())
+		return;
+
 	mte_update_sctlr_user(next);
 
 	/*
-- 
GitLab


From 31be091c6245e31c3291de248c0eb78c53fd60e8 Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Fri, 10 Sep 2021 17:06:16 +0800
Subject: [PATCH 3705/4878] UPSTREAM: remoteproc: elf_loader: Fix loading
 segment when is_iomem true

It seems luckliy work on i.MX platform, but it is wrong.
Need use memcpy_toio, not memcpy_fromio.

Fixes: 40df0a91b2a5 ("remoteproc: add is_iomem to da_to_va")
Tested-by: Dong Aisheng <aisheng.dong@nxp.com> (i.MX8MQ)
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-2-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
(cherry picked from commit 24acbd9dc934f5d9418a736c532d3970a272063e)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I131bd6441363437a98014d7639c6507f9cafc834
---
 drivers/remoteproc/remoteproc_elf_loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
index 11423588965ab..afa84c7178b89 100644
--- a/drivers/remoteproc/remoteproc_elf_loader.c
+++ b/drivers/remoteproc/remoteproc_elf_loader.c
@@ -216,7 +216,7 @@ int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
 		/* put the segment where the remote processor expects it */
 		if (filesz) {
 			if (is_iomem)
-				memcpy_fromio(ptr, (void __iomem *)(elf_data + offset), filesz);
+				memcpy_toio((void __iomem *)ptr, elf_data + offset, filesz);
 			else
 				memcpy(ptr, elf_data + offset, filesz);
 		}
-- 
GitLab


From 0de6b8cd774694883635482b0a5f60a295b25878 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <aisheng.dong@nxp.com>
Date: Fri, 10 Sep 2021 17:06:17 +0800
Subject: [PATCH 3706/4878] UPSTREAM: remoteproc: Fix the wrong default value
 of is_iomem

Currently the is_iomem is a random value in the stack which may
be default to true even on those platforms that not use iomem to
store firmware.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 40df0a91b2a5 ("remoteproc: add is_iomem to da_to_va")
Reviewed-and-tested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-3-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
(cherry picked from commit 970675f61bf5761d7e5326f6e4df995ecdba5e11)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I84a0f650a27443c18efff8d1d02fe47392b334ac
---
 drivers/remoteproc/remoteproc_coredump.c   | 2 +-
 drivers/remoteproc/remoteproc_elf_loader.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_coredump.c b/drivers/remoteproc/remoteproc_coredump.c
index aa45b68c224b1..8ed597a2eef37 100644
--- a/drivers/remoteproc/remoteproc_coredump.c
+++ b/drivers/remoteproc/remoteproc_coredump.c
@@ -153,8 +153,8 @@ static void rproc_copy_segment(struct rproc *rproc, void *dest,
 			       struct rproc_dump_segment *segment,
 			       size_t offset, size_t size)
 {
+	bool is_iomem = false;
 	void *ptr;
-	bool is_iomem;
 
 	if (segment->dump) {
 		segment->dump(rproc, segment, dest, offset, size);
diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
index afa84c7178b89..3a5d66b6c6e46 100644
--- a/drivers/remoteproc/remoteproc_elf_loader.c
+++ b/drivers/remoteproc/remoteproc_elf_loader.c
@@ -174,8 +174,8 @@ int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
 		u64 filesz = elf_phdr_get_p_filesz(class, phdr);
 		u64 offset = elf_phdr_get_p_offset(class, phdr);
 		u32 type = elf_phdr_get_p_type(class, phdr);
+		bool is_iomem = false;
 		void *ptr;
-		bool is_iomem;
 
 		if (type != PT_LOAD)
 			continue;
-- 
GitLab


From 5e5294d0e57af99dd535c76bda84d17be57fc0b0 Mon Sep 17 00:00:00 2001
From: Yee Lee <yee.lee@mediatek.com>
Date: Thu, 30 Sep 2021 16:16:13 +0800
Subject: [PATCH 3707/4878] UPSTREAM: scs: Release kasan vmalloc poison in
 scs_free process

Since scs allocation is moved to vmalloc region, the
shadow stack is protected by kasan_posion_vmalloc.
However, the vfree_atomic operation needs to access
its context for scs_free process and causes kasan error
as the dump info below.

This patch Adds kasan_unpoison_vmalloc() before vfree_atomic,
which aligns to the prior flow as using kmem_cache.
The vmalloc region will go back posioned in the following
vumap() operations.

 ==================================================================
 BUG: KASAN: vmalloc-out-of-bounds in llist_add_batch+0x60/0xd4
 Write of size 8 at addr ffff8000100b9000 by task kthreadd/2

 CPU: 0 PID: 2 Comm: kthreadd Not tainted 5.15.0-rc2-11681-g92477dd1faa6-dirty #1
 Hardware name: linux,dummy-virt (DT)
 Call trace:
  dump_backtrace+0x0/0x43c
  show_stack+0x1c/0x2c
  dump_stack_lvl+0x68/0x84
  print_address_description+0x80/0x394
  kasan_report+0x180/0x1dc
  __asan_report_store8_noabort+0x48/0x58
  llist_add_batch+0x60/0xd4
  vfree_atomic+0x60/0xe0
  scs_free+0x1dc/0x1fc
  scs_release+0xa4/0xd4
  free_task+0x30/0xe4
  __put_task_struct+0x1ec/0x2e0
  delayed_put_task_struct+0x5c/0xa0
  rcu_do_batch+0x62c/0x8a0
  rcu_core+0x60c/0xc14
  rcu_core_si+0x14/0x24
  __do_softirq+0x19c/0x68c
  irq_exit+0x118/0x2dc
  handle_domain_irq+0xcc/0x134
  gic_handle_irq+0x7c/0x1bc
  call_on_irq_stack+0x40/0x70
  do_interrupt_handler+0x78/0x9c
  el1_interrupt+0x34/0x60
  el1h_64_irq_handler+0x1c/0x2c
  el1h_64_irq+0x78/0x7c
  _raw_spin_unlock_irqrestore+0x40/0xcc
  sched_fork+0x4f0/0xb00
  copy_process+0xacc/0x3648
  kernel_clone+0x168/0x534
  kernel_thread+0x13c/0x1b0
  kthreadd+0x2bc/0x400
  ret_from_fork+0x10/0x20

 Memory state around the buggy address:
  ffff8000100b8f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
  ffff8000100b8f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 >ffff8000100b9000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                    ^
  ffff8000100b9080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
  ffff8000100b9100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ==================================================================

Suggested-by: Kuan-Ying Lee <kuan-ying.lee@mediatek.com>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Will Deacon <will@kernel.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Yee Lee <yee.lee@mediatek.com>
Fixes: a2abe7cbd8fe ("scs: switch to vmapped shadow stacks")
Link: https://lore.kernel.org/r/20210930081619.30091-1-yee.lee@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 528a4ab45300fa6283556d9b48e26b45a8aa15c4)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Idc934fd9b43cbec74a9c9e085094ebcbcbc88344
---
 kernel/scs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/scs.c b/kernel/scs.c
index e2a71fc82fa06..579841be88646 100644
--- a/kernel/scs.c
+++ b/kernel/scs.c
@@ -78,6 +78,7 @@ void scs_free(void *s)
 		if (this_cpu_cmpxchg(scs_cache[i], 0, s) == NULL)
 			return;
 
+	kasan_unpoison_vmalloc(s, SCS_SIZE);
 	vfree_atomic(s);
 }
 
-- 
GitLab


From e1f4fbca6c802d01a34f107479160676537d39de Mon Sep 17 00:00:00 2001
From: Xu Yang <xu.yang_2@nxp.com>
Date: Sun, 26 Sep 2021 18:14:15 +0800
Subject: [PATCH 3708/4878] UPSTREAM: usb: typec: tcpci: don't handle vSafe0V
 event if it's not enabled

USB TCPCI Spec, 4.4.3 Mask Registers:
"A masked register will still indicate in the ALERT register, but shall
not set the Alert# pin low."

Thus, the Extended Status will still indicate in ALERT register if vSafe0V
is detected by TCPC even though being masked. In current code, howerer,
this event will not be handled in detection time. Rather it will be
handled when next ALERT event coming(CC evnet, PD event, etc).

Tcpm might transition to a wrong state in this situation. Thus, the vSafe0V
event should not be handled when it's masked.

Fixes: 766c485b86ef ("usb: typec: tcpci: Add support to report vSafe0V")
cc: <stable@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20210926101415.3775058-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 05300871c0e21c288bd5c30ac6f9b1da6ddeed22)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I5692ec1cc281b3e32cff8c4e9c6fd5f73f1477e1
---
 drivers/usb/typec/tcpm/tcpci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index 05aa15aaf26ab..f7141b135270d 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -722,7 +722,7 @@ irqreturn_t tcpci_irq(struct tcpci *tcpci)
 		tcpm_pd_receive(tcpci->port, &msg);
 	}
 
-	if (status & TCPC_ALERT_EXTENDED_STATUS) {
+	if (tcpci->data->vbus_vsafe0v && (status & TCPC_ALERT_EXTENDED_STATUS)) {
 		ret = regmap_read(tcpci->regmap, TCPC_EXTENDED_STATUS, &raw);
 		if (!ret && (raw & TCPC_EXTENDED_STATUS_VSAFE0V))
 			tcpm_vbus_change(tcpci->port);
-- 
GitLab


From 78c0c72de970d03b4ea0be73d6f529d04d6ffd67 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 13 Oct 2021 17:37:07 +0300
Subject: [PATCH 3709/4878] UPSTREAM: device property: Add missed header in
 fwnode.h

When adding some stuff to the header file we must not rely on
implicit dependencies that are happen by luck or bugs in other
headers. Hence fwnode.h needs to use bits.h directly.

Fixes: c2c724c868c4 ("driver core: Add fw_devlink_parse_fwtree()")
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211013143707.80222-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit f0ada6da3a0d69682e21f1783d02676e0fbf1bc1)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I803a988a9db7f0a47616f4464d22125eda09825a
---
 include/linux/fwnode.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 8392b8ce70dd1..57c1c7918702c 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -11,6 +11,7 @@
 
 #include <linux/types.h>
 #include <linux/list.h>
+#include <linux/bits.h>
 #include <linux/err.h>
 #include <linux/android_kabi.h>
 
-- 
GitLab


From 3b8f149df2cc02dfc131856d956340d3767e95c1 Mon Sep 17 00:00:00 2001
From: Peter Xu <peterx@redhat.com>
Date: Mon, 18 Oct 2021 15:15:22 -0700
Subject: [PATCH 3710/4878] UPSTREAM: mm/userfaultfd: selftests: fix memory
 corruption with thp enabled

In RHEL's gating selftests we've encountered memory corruption in the
uffd event test even with upstream kernel:

        # ./userfaultfd anon 128 4
        nr_pages: 32768, nr_pages_per_cpu: 32768
        bounces: 3, mode: rnd racing read, userfaults: 6240 missing (6240) 14729 wp (14729)
        bounces: 2, mode: racing read, userfaults: 1444 missing (1444) 28877 wp (28877)
        bounces: 1, mode: rnd read, userfaults: 6055 missing (6055) 14699 wp (14699)
        bounces: 0, mode: read, userfaults: 82 missing (82) 25196 wp (25196)
        testing uffd-wp with pagemap (pgsize=4096): done
        testing uffd-wp with pagemap (pgsize=2097152): done
        testing events (fork, remap, remove): ERROR: nr 32427 memory corruption 0 1 (errno=0, line=963)
        ERROR: faulting process failed (errno=0, line=1117)

It can be easily reproduced when global thp enabled, which is the
default for RHEL.

It's also known as a side effect of commit 0db282ba2c12 ("selftest: use
mmap instead of posix_memalign to allocate memory", 2021-07-23), which
is imho right itself on using mmap() to make sure the addresses will be
untagged even on arm.

The problem is, for each test we allocate buffers using two
allocate_area() calls.  We assumed these two buffers won't affect each
other, however they could, because mmap() could have found that the two
buffers are near each other and having the same VMA flags, so they got
merged into one VMA.

It won't be a big problem if thp is not enabled, but when thp is
agressively enabled it means when initializing the src buffer it could
accidentally setup part of the dest buffer too when there's a shared THP
that overlaps the two regions.  Then some of the dest buffer won't be
able to be trapped by userfaultfd missing mode, then it'll cause memory
corruption as described.

To fix it, do release_pages() after initializing the src buffer.

Since the previous two release_pages() calls are after
uffd_test_ctx_clear() which will unmap all the buffers anyway (which is
stronger than release pages; as unmap() also tear town pgtables), drop
them as they shouldn't really be anything useful.

We can mark the Fixes tag upon 0db282ba2c12 as it's reported to only
happen there, however the real "Fixes" IMHO should be 8ba6e8640844, as
before that commit we'll always do explicit release_pages() before
registration of uffd, and 8ba6e8640844 changed that logic by adding
extra unmap/map and we didn't release the pages at the right place.
Meanwhile I don't have a solid glue anyway on whether posix_memalign()
could always avoid triggering this bug, hence it's safer to attach this
fix to commit 8ba6e8640844.

Link: https://lkml.kernel.org/r/20210923232512.210092-1-peterx@redhat.com
Fixes: 8ba6e8640844 ("userfaultfd/selftests: reinitialize test context in each test")
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1994931
Signed-off-by: Peter Xu <peterx@redhat.com>
Reported-by: Li Wang <liwan@redhat.com>
Tested-by: Li Wang <liwang@redhat.com>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 8913970c19915bbe773d97d42989cd85b7fdc098)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I41a18225c12fc1d9cba9f752970e86f268923ce1
---
 tools/testing/selftests/vm/userfaultfd.c | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 6e34294495661..44dc9c3323055 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -413,9 +413,6 @@ static void uffd_test_ctx_init_ext(uint64_t *features)
 	uffd_test_ops->allocate_area((void **)&area_src);
 	uffd_test_ops->allocate_area((void **)&area_dst);
 
-	uffd_test_ops->release_pages(area_src);
-	uffd_test_ops->release_pages(area_dst);
-
 	userfaultfd_open(features);
 
 	count_verify = malloc(nr_pages * sizeof(unsigned long long));
@@ -436,6 +433,26 @@ static void uffd_test_ctx_init_ext(uint64_t *features)
 		*(area_count(area_src, nr) + 1) = 1;
 	}
 
+	/*
+	 * After initialization of area_src, we must explicitly release pages
+	 * for area_dst to make sure it's fully empty.  Otherwise we could have
+	 * some area_dst pages be errornously initialized with zero pages,
+	 * hence we could hit memory corruption later in the test.
+	 *
+	 * One example is when THP is globally enabled, above allocate_area()
+	 * calls could have the two areas merged into a single VMA (as they
+	 * will have the same VMA flags so they're mergeable).  When we
+	 * initialize the area_src above, it's possible that some part of
+	 * area_dst could have been faulted in via one huge THP that will be
+	 * shared between area_src and area_dst.  It could cause some of the
+	 * area_dst won't be trapped by missing userfaults.
+	 *
+	 * This release_pages() will guarantee even if that happened, we'll
+	 * proactively split the thp and drop any accidentally initialized
+	 * pages within area_dst.
+	 */
+	uffd_test_ops->release_pages(area_dst);
+
 	pipefd = malloc(sizeof(int) * nr_cpus * 2);
 	if (!pipefd)
 		err("pipefd");
-- 
GitLab


From ebef67a908e7e32a78647f6a9c134ca8bb5446f4 Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Mon, 18 Oct 2021 15:15:52 -0700
Subject: [PATCH 3711/4878] BACKPORT: mm, slub: fix two bugs in
 slab_debug_trace_open()

Patch series "Fixups for slub".

This series contains various bug fixes for slub.  We fix memoryleak,
use-afer-free, NULL pointer dereferencing and so on in slub.  More
details can be found in the respective changelogs.

This patch (of 5):

It's possible that __seq_open_private() will return NULL.  So we should
check it before using lest dereferencing NULL pointer.  And in error
paths, we forgot to release private buffer via seq_release_private().
Memory will leak in these paths.

Link: https://lkml.kernel.org/r/20210916123920.48704-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210916123920.48704-2-linmiaohe@huawei.com
Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 2127d22509aec3a83dffb2a3c736df7ba747a7ce)
[connor: drop changes to code not present in 5.10]
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I0558e9d24c48f243d9a590624cc800bf0120f060
---
 mm/slub.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index 22ef776d7aaa5..83e54fa417713 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5790,13 +5790,18 @@ static int slab_debug_trace_open(struct inode *inode, struct file *filep)
 						sizeof(struct loc_track));
 	struct kmem_cache *s = file_inode(filep)->i_private;
 
+	if (!t)
+		return -ENOMEM;
+
 	if (strcmp(filep->f_path.dentry->d_name.name, "alloc_traces") == 0)
 		alloc = TRACK_ALLOC;
 	else
 		alloc = TRACK_FREE;
 
-	if (!alloc_loc_track(t, PAGE_SIZE / sizeof(struct location), GFP_KERNEL))
+	if (!alloc_loc_track(t, PAGE_SIZE / sizeof(struct location), GFP_KERNEL)) {
+		seq_release_private(inode, filep);
 		return -ENOMEM;
+	}
 
 	/* Push back cpu slabs */
 	flush_all(s);
-- 
GitLab


From 1237314cc87a000e508b14c252da3510de6fadcc Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Mon, 18 Oct 2021 15:16:02 -0700
Subject: [PATCH 3712/4878] UPSTREAM: mm, slub: fix potential use-after-free in
 slab_debugfs_fops

When sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for s
because s will be freed soon.  And slab_debugfs_fops will use s later
leading to a use-after-free.

Link: https://lkml.kernel.org/r/20210916123920.48704-5-linmiaohe@huawei.com
Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 67823a544414def2a36c212abadb55b23bcda00c)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I900506a1c04f86978f6a33eb8b544f19f3be60bc
---
 mm/slub.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 83e54fa417713..a34928573722e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4507,13 +4507,15 @@ int __kmem_cache_create(struct kmem_cache *s, slab_flags_t flags)
 		return 0;
 
 	err = sysfs_slab_add(s);
-	if (err)
+	if (err) {
 		__kmem_cache_release(s);
+		return err;
+	}
 
 	if (s->flags & SLAB_STORE_USER)
 		debugfs_slab_add(s);
 
-	return err;
+	return 0;
 }
 
 void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
-- 
GitLab


From c9db192e0ca15c720b17d828f86291c002e1a053 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 21 Sep 2021 14:41:05 +0100
Subject: [PATCH 3713/4878] UPSTREAM: coresight: trbe: Fix incorrect access of
 the sink specific data

The TRBE driver wrongly treats the aux private data as the TRBE driver
specific buffer for a given perf handle, while it is the ETM PMU's
event specific data. Fix this by correcting the instance to use
appropriate helper.

Cc: stable <stable@vger.kernel.org>
Fixes: 3fbf7f011f24 ("coresight: sink: Add TRBE driver")
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20210921134121.2423546-2-suzuki.poulose@arm.com
[Fixed 13 character SHA down to 12]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
(cherry picked from commit bb5293e334af51b19b62d8bef1852ea13e935e9b)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I4fe9e41b0cf1753751c16a78ae3f34639c6250b3
---
 drivers/hwtracing/coresight/coresight-trbe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index 7b8fed7b63cc2..7dddb85b90591 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -366,7 +366,7 @@ static unsigned long __trbe_normal_offset(struct perf_output_handle *handle)
 
 static unsigned long trbe_normal_offset(struct perf_output_handle *handle)
 {
-	struct trbe_buf *buf = perf_get_aux(handle);
+	struct trbe_buf *buf = etm_perf_sink_config(handle);
 	u64 limit = __trbe_normal_offset(handle);
 	u64 head = PERF_IDX2OFF(handle->head, buf);
 
-- 
GitLab


From 8b6ad2903204900ecbb14fcaef35c92a440c857b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 1 Nov 2021 17:45:55 -0700
Subject: [PATCH 3714/4878] UPSTREAM: net: add and use
 skb_unclone_keeptruesize() helper

While commit 097b9146c0e2 ("net: fix up truesize of cloned
skb in skb_prepare_for_shift()") fixed immediate issues found
when KFENCE was enabled/tested, there are still similar issues,
when tcp_trim_head() hits KFENCE while the master skb
is cloned.

This happens under heavy networking TX workloads,
when the TX completion might be delayed after incoming ACK.

This patch fixes the WARNING in sk_stream_kill_queues
when sk->sk_mem_queued/sk->sk_forward_alloc are not zero.

Fixes: d3fb45f370d9 ("mm, kfence: insert KFENCE hooks for SLAB")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20211102004555.1359210-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit c4777efa751d293e369aec464ce6875e957be255)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ie379b2985155f123888f8b92b8fc79fa4a96ebc1
---
 include/linux/skbuff.h | 16 ++++++++++++++++
 net/core/skbuff.c      | 14 +-------------
 net/ipv4/tcp_output.c  |  6 +++---
 3 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f84c1505bdb8a..3a02503b3637a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1646,6 +1646,22 @@ static inline int skb_unclone(struct sk_buff *skb, gfp_t pri)
 	return 0;
 }
 
+/* This variant of skb_unclone() makes sure skb->truesize is not changed */
+static inline int skb_unclone_keeptruesize(struct sk_buff *skb, gfp_t pri)
+{
+	might_sleep_if(gfpflags_allow_blocking(pri));
+
+	if (skb_cloned(skb)) {
+		unsigned int save = skb->truesize;
+		int res;
+
+		res = pskb_expand_head(skb, 0, 0, pri);
+		skb->truesize = save;
+		return res;
+	}
+	return 0;
+}
+
 /**
  *	skb_header_cloned - is the header a clone
  *	@skb: buffer to check
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 6bb234eb541d0..5bf27d8c5ea93 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3296,19 +3296,7 @@ EXPORT_SYMBOL(skb_split);
  */
 static int skb_prepare_for_shift(struct sk_buff *skb)
 {
-	int ret = 0;
-
-	if (skb_cloned(skb)) {
-		/* Save and restore truesize: pskb_expand_head() may reallocate
-		 * memory where ksize(kmalloc(S)) != ksize(kmalloc(S)), but we
-		 * cannot change truesize at this point.
-		 */
-		unsigned int save_truesize = skb->truesize;
-
-		ret = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-		skb->truesize = save_truesize;
-	}
-	return ret;
+	return skb_unclone_keeptruesize(skb, GFP_ATOMIC);
 }
 
 /**
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 19ef4577b70d6..37e70cd46feaf 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1561,7 +1561,7 @@ int tcp_fragment(struct sock *sk, enum tcp_queue tcp_queue,
 		return -ENOMEM;
 	}
 
-	if (skb_unclone(skb, gfp))
+	if (skb_unclone_keeptruesize(skb, gfp))
 		return -ENOMEM;
 
 	/* Get a new skb... force flag on. */
@@ -1670,7 +1670,7 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len)
 {
 	u32 delta_truesize;
 
-	if (skb_unclone(skb, GFP_ATOMIC))
+	if (skb_unclone_keeptruesize(skb, GFP_ATOMIC))
 		return -ENOMEM;
 
 	delta_truesize = __pskb_trim_head(skb, len);
@@ -3184,7 +3184,7 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs)
 				 cur_mss, GFP_ATOMIC))
 			return -ENOMEM; /* We'll try again later. */
 	} else {
-		if (skb_unclone(skb, GFP_ATOMIC))
+		if (skb_unclone_keeptruesize(skb, GFP_ATOMIC))
 			return -ENOMEM;
 
 		diff = tcp_skb_pcount(skb);
-- 
GitLab


From 6a126878dd9abd138ca62597745b584ae86a89e0 Mon Sep 17 00:00:00 2001
From: Avri Altman <avri.altman@wdc.com>
Date: Sun, 31 Oct 2021 14:36:54 +0200
Subject: [PATCH 3715/4878] BACKPORT: scsi: ufs: ufshpb: Properly handle
 max-single-cmd

The spec recommends that for transfer length larger than the max-single-cmd
attribute (bMAX_DATA_SIZE_FOR_HPB_SINGLE_CMD) it is possible to couple
pre-requests with the HPB-READ command.  Being a recommendation, using
pre-requests can be perceived merely as a means of optimization.  A common
practice was to send pre-requests for chunks within some interval, and
leave the READ10 untouched if larger.

Now that the pre-request flows have been removed, all the commands are
single commands.  Properly handle this attribute and do not send HPB-READ
for transfer lengths larger than max-single-cmd.

[mkp: resolve conflict]

Fixes: 09d9e4d04187 ("scsi: ufs: ufshpb: Remove HPB2.0 flows")
Link: https://lore.kernel.org/r/20211031123654.17719-1-avri.altman@wdc.com
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9ec5128a8b5631d652ed06b37e0166f337802f90)
[connoro: preserve pm_runtime_{get,put}_sync calls absent upstream]
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I712452b8c2932540b1aa86a449893045de5a3e35
---
 drivers/scsi/ufs/ufshpb.c | 29 +++++++++++++++--------------
 drivers/scsi/ufs/ufshpb.h |  1 -
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index 5a67a840314f6..40c6c4515e6c6 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -383,8 +383,6 @@ int ufshpb_prep(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
 	if (!ufshpb_is_supported_chunk(hpb, transfer_len))
 		return 0;
 
-	WARN_ON_ONCE(transfer_len > HPB_MULTI_CHUNK_HIGH);
-
 	if (hpb->is_hcm) {
 		/*
 		 * in host control mode, reads are the main source for
@@ -1550,7 +1548,7 @@ static void ufshpb_lu_parameter_init(struct ufs_hba *hba,
 	if (ufshpb_is_legacy(hba))
 		hpb->pre_req_max_tr_len = HPB_LEGACY_CHUNK_HIGH;
 	else
-		hpb->pre_req_max_tr_len = HPB_MULTI_CHUNK_HIGH;
+		hpb->pre_req_max_tr_len = hpb_dev_info->max_hpb_single_cmd;
 
 
 	hpb->lu_pinned_start = hpb_lu_info->pinned_start;
@@ -2562,7 +2560,7 @@ void ufshpb_get_dev_info(struct ufs_hba *hba, u8 *desc_buf)
 {
 	struct ufshpb_dev_info *hpb_dev_info = &hba->ufshpb_dev;
 	int version, ret;
-	u32 max_hpb_single_cmd = HPB_MULTI_CHUNK_LOW;
+	int max_single_cmd;
 
 	hpb_dev_info->control_mode = desc_buf[DEVICE_DESC_PARAM_HPB_CONTROL];
 
@@ -2578,21 +2576,24 @@ void ufshpb_get_dev_info(struct ufs_hba *hba, u8 *desc_buf)
 	if (version == HPB_SUPPORT_LEGACY_VERSION)
 		hpb_dev_info->is_legacy = true;
 
-	pm_runtime_get_sync(hba->dev);
-	ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
-		QUERY_ATTR_IDN_MAX_HPB_SINGLE_CMD, 0, 0, &max_hpb_single_cmd);
-	pm_runtime_put_sync(hba->dev);
-
-	if (ret)
-		dev_err(hba->dev, "%s: idn: read max size of single hpb cmd query request failed",
-			__func__);
-	hpb_dev_info->max_hpb_single_cmd = max_hpb_single_cmd;
-
 	/*
 	 * Get the number of user logical unit to check whether all
 	 * scsi_device finish initialization
 	 */
 	hpb_dev_info->num_lu = desc_buf[DEVICE_DESC_PARAM_NUM_LU];
+
+	if (hpb_dev_info->is_legacy)
+		return;
+
+	pm_runtime_get_sync(hba->dev);
+	ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
+		QUERY_ATTR_IDN_MAX_HPB_SINGLE_CMD, 0, 0, &max_single_cmd);
+	pm_runtime_put_sync(hba->dev);
+
+	if (ret)
+		hpb_dev_info->max_hpb_single_cmd = HPB_LEGACY_CHUNK_HIGH;
+	else
+		hpb_dev_info->max_hpb_single_cmd = min(max_single_cmd + 1, HPB_MULTI_CHUNK_HIGH);
 }
 
 void ufshpb_init(struct ufs_hba *hba)
diff --git a/drivers/scsi/ufs/ufshpb.h b/drivers/scsi/ufs/ufshpb.h
index cd263f47751d0..af7a9a3c5d759 100644
--- a/drivers/scsi/ufs/ufshpb.h
+++ b/drivers/scsi/ufs/ufshpb.h
@@ -31,7 +31,6 @@
 
 /* hpb support chunk size */
 #define HPB_LEGACY_CHUNK_HIGH			1
-#define HPB_MULTI_CHUNK_LOW			7
 #define HPB_MULTI_CHUNK_HIGH			256
 
 /* hpb vender defined opcode */
-- 
GitLab


From 3f652da4c5b10f9406b38a503c3b640459364015 Mon Sep 17 00:00:00 2001
From: Reiji Watanabe <reijiw@google.com>
Date: Sun, 31 Oct 2021 21:54:21 -0700
Subject: [PATCH 3716/4878] UPSTREAM: arm64: arm64_ftr_reg->name may not be a
 human-readable string

The id argument of ARM64_FTR_REG_OVERRIDE() is used for two purposes:
one as the system register encoding (used for the sys_id field of
__ftr_reg_entry), and the other as the register name (stringified
and used for the name field of arm64_ftr_reg), which is debug
information. The id argument is supposed to be a macro that
indicates an encoding of the register (eg. SYS_ID_AA64PFR0_EL1, etc).

ARM64_FTR_REG(), which also has the same id argument,
uses ARM64_FTR_REG_OVERRIDE() and passes the id to the macro.
Since the id argument is completely macro-expanded before it is
substituted into a macro body of ARM64_FTR_REG_OVERRIDE(),
the stringified id in the body of ARM64_FTR_REG_OVERRIDE is not
a human-readable register name, but a string of numeric bitwise
operations.

Fix this so that human-readable register names are available as
debug information.

Fixes: 8f266a5d878a ("arm64: cpufeature: Add global feature override facility")
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211101045421.2215822-1-reijiw@google.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 9dc232a8ab18bb20f1dcb03c8e049e3607f3ed15)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I7172216aa4253665947cab221efb3f34992fe666
---
 arch/arm64/kernel/cpufeature.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 2eaaa3a41e3b1..0eb94944d6396 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -569,15 +569,19 @@ static const struct arm64_ftr_bits ftr_raz[] = {
 	ARM64_FTR_END,
 };
 
-#define ARM64_FTR_REG_OVERRIDE(id, table, ovr) {		\
+#define __ARM64_FTR_REG_OVERRIDE(id_str, id, table, ovr) {	\
 		.sys_id = id,					\
 		.reg = 	&(struct arm64_ftr_reg){		\
-			.name = #id,				\
+			.name = id_str,				\
 			.override = (ovr),			\
 			.ftr_bits = &((table)[0]),		\
 	}}
 
-#define ARM64_FTR_REG(id, table) ARM64_FTR_REG_OVERRIDE(id, table, &no_override)
+#define ARM64_FTR_REG_OVERRIDE(id, table, ovr)	\
+	__ARM64_FTR_REG_OVERRIDE(#id, id, table, ovr)
+
+#define ARM64_FTR_REG(id, table)		\
+	__ARM64_FTR_REG_OVERRIDE(#id, id, table, &no_override)
 
 struct arm64_ftr_override __ro_after_init id_aa64mmfr1_override;
 struct arm64_ftr_override __ro_after_init id_aa64pfr1_override;
-- 
GitLab


From 53c66f5dae7a53ebbfa7ad1fa378fc4c2b264c0c Mon Sep 17 00:00:00 2001
From: Cristian Marussi <cristian.marussi@arm.com>
Date: Mon, 15 Nov 2021 15:40:43 +0000
Subject: [PATCH 3717/4878] UPSTREAM: firmware: arm_scmi: Fix type error in
 sensor protocol

Fix incorrect type error reported by sparse as:

drivers/firmware/arm_scmi/sensors.c:640:28: warning: incorrect type in argument 1 (different base types)
drivers/firmware/arm_scmi/sensors.c:640:28: expected unsigned int [usertype] val
drivers/firmware/arm_scmi/sensors.c:640:28: got restricted __le32 [usertype]

Link: https://lore.kernel.org/r/20211115154043.49284-2-cristian.marussi@arm.com
Fixes: 7b83c5f410889 ("firmware: arm_scmi: Add SCMI v3.0 sensor configuration support")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit bd074e5039ee16d71833a67337e2f6bf5d106b3a)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Iab5343e0c5254f51f8b88bd9edf049a61e4799b1
---
 drivers/firmware/arm_scmi/sensors.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_scmi/sensors.c b/drivers/firmware/arm_scmi/sensors.c
index 1187547eba4fc..d426b8478543c 100644
--- a/drivers/firmware/arm_scmi/sensors.c
+++ b/drivers/firmware/arm_scmi/sensors.c
@@ -637,7 +637,7 @@ static int scmi_sensor_config_get(const struct scmi_protocol_handle *ph,
 	if (ret)
 		return ret;
 
-	put_unaligned_le32(cpu_to_le32(sensor_id), t->tx.buf);
+	put_unaligned_le32(sensor_id, t->tx.buf);
 	ret = ph->xops->do_xfer(ph, t);
 	if (!ret) {
 		struct sensors_info *si = ph->get_priv(ph);
-- 
GitLab


From 96087968fd2420f46ca4826969d55dc67a92b01e Mon Sep 17 00:00:00 2001
From: Cristian Marussi <cristian.marussi@arm.com>
Date: Mon, 15 Nov 2021 15:40:42 +0000
Subject: [PATCH 3718/4878] UPSTREAM: firmware: arm_scmi: Fix type error
 assignment in voltage protocol

Fix incorrect type assignment error reported by sparse as:

drivers/firmware/arm_scmi/voltage.c:159:42: warning: incorrect type in assignment (different base types)
drivers/firmware/arm_scmi/voltage.c:159:42: expected restricted __le32 [usertype] level_index
drivers/firmware/arm_scmi/voltage.c:159:42: got unsigned int [usertype] desc_index

Link: https://lore.kernel.org/r/20211115154043.49284-1-cristian.marussi@arm.com
Fixes: 2add5cacff353 ("firmware: arm_scmi: Add voltage domain management protocol support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
(cherry picked from commit 026d9835b62bba34b7e657a0bfb76717822f9319)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ibfbf497cdcac5a98bd3e0d611d11478858be6034
---
 drivers/firmware/arm_scmi/voltage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_scmi/voltage.c b/drivers/firmware/arm_scmi/voltage.c
index 3a0cd5a531f11..ab22f4c449aab 100644
--- a/drivers/firmware/arm_scmi/voltage.c
+++ b/drivers/firmware/arm_scmi/voltage.c
@@ -155,7 +155,7 @@ static int scmi_voltage_descriptors_get(const struct scmi_protocol_handle *ph,
 			int cnt;
 
 			cmd->domain_id = cpu_to_le32(v->id);
-			cmd->level_index = desc_index;
+			cmd->level_index = cpu_to_le32(desc_index);
 			ret = ph->xops->do_xfer(ph, tl);
 			if (ret)
 				break;
-- 
GitLab


From 68c056a97a1a67259c7b4891abdb27ed09386dc1 Mon Sep 17 00:00:00 2001
From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: Mon, 25 Oct 2021 16:15:32 -0700
Subject: [PATCH 3719/4878] UPSTREAM: usb: dwc3: core: Revise GHWPARAMS9 offset

During our predesign phase for DWC_usb32, the GHWPARAMS9 register offset
was 0xc680. We revised our final design, and the GHWPARAMS9 offset is
now moved to 0xc6e8 on release.

Fixes: 16710380d3aa ("usb: dwc3: Capture new capability register GHWPARAMS9")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/1541737108266a97208ff827805be1f32852590c.1635202893.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 250fdabec6ffcaf895c5e0dedca62706ef10d8f6)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Ib20ecd8e7156129c08b5551b227f9accddef6c6d
---
 drivers/usb/dwc3/core.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 48244e076c30f..8ac17e4cf5a7b 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -144,7 +144,7 @@
 #define DWC3_GHWPARAMS8		0xc600
 #define DWC3_GUCTL3		0xc60c
 #define DWC3_GFLADJ		0xc630
-#define DWC3_GHWPARAMS9		0xc680
+#define DWC3_GHWPARAMS9		0xc6e0
 
 /* Device Registers */
 #define DWC3_DCFG		0xc700
-- 
GitLab


From ebf5dfca95d4d1a8626d993a3647b32ba1ba341c Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Mon, 22 Nov 2021 12:58:20 +0000
Subject: [PATCH 3720/4878] BACKPORT: arm64: uaccess: avoid blocking within
 critical sections

As Vincent reports in:

  https://lore.kernel.org/r/20211118163417.21617-1-vincent.whitchurch@axis.com

The put_user() in schedule_tail() can get stuck in a livelock, similar
to a problem recently fixed on riscv in commit:

  285a76bb2cf51b0c ("riscv: evaluate put_user() arg before enabling user access")

In __raw_put_user() we have a critical section between
uaccess_ttbr0_enable() and uaccess_ttbr0_disable() where we cannot
safely call into the scheduler without having taken an exception, as
schedule() and other scheduling functions will not save/restore the
TTBR0 state. If either of the `x` or `ptr` arguments to __raw_put_user()
contain a blocking call, we may call into the scheduler within the
critical section. This can result in two problems:

1) The access within the critical section will occur without the
   required TTBR0 tables installed. This will fault, and where the
   required tables permit access, the access will be retried without the
   required tables, resulting in a livelock.

2) When TTBR0 SW PAN is in use, check_and_switch_context() does not
   modify TTBR0, leaving a stale value installed. The mappings of the
   blocked task will erroneously be accessible to regular accesses in
   the context of the new task. Additionally, if the tables are
   subsequently freed, local TLB maintenance required to reuse the ASID
   may be lost, potentially resulting in TLB corruption (e.g. in the
   presence of CnP).

The same issue exists for __raw_get_user() in the critical section
between uaccess_ttbr0_enable() and uaccess_ttbr0_disable().

A similar issue exists for __get_kernel_nofault() and
__put_kernel_nofault() for the critical section between
__uaccess_enable_tco_async() and __uaccess_disable_tco_async(), as the
TCO state is not context-switched by direct calls into the scheduler.
Here the TCO state may be lost from the context of the current task,
resulting in unexpected asynchronous tag check faults. It may also be
leaked to another task, suppressing expected tag check faults.

To fix all of these cases, we must ensure that we do not directly call
into the scheduler in their respective critical sections. This patch
reworks __raw_put_user(), __raw_get_user(), __get_kernel_nofault(), and
__put_kernel_nofault(), ensuring that parameters are evaluated outside
of the critical sections. To make this requirement clear, comments are
added describing the problem, and line spaces added to separate the
critical sections from other portions of the macros.

For __raw_get_user() and __raw_put_user() the `err` parameter is
conditionally assigned to, and we must currently evaluate this in the
critical section. This behaviour is relied upon by the signal code,
which uses chains of put_user_error() and get_user_error(), checking the
return value at the end. In all cases, the `err` parameter is a plain
int rather than a more complex expression with a blocking call, so this
is safe.

In future we should try to clean up the `err` usage to remove the
potential for this to be a problem.

Aside from the changes to time of evaluation, there should be no
functional change as a result of this patch.

Reported-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20211118163417.21617-1-vincent.whitchurch@axis.com
Fixes: f253d827f33c ("arm64: uaccess: refactor __{get,put}_user")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20211122125820.55286-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 94902d849e85093aafcdbea2be8e2beff47233e6)
[connoro: adjust __raw_{get,put}_user comments to reflect 5.10 code]
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: Iac8484644d9e4612e0d40f36e1f9079422cd80b5
---
 arch/arm64/include/asm/uaccess.h | 48 +++++++++++++++++++++++++++-----
 1 file changed, 41 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 7450d252b8689..5d0111a61cf44 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -342,12 +342,22 @@ do {									\
 	(x) = (__force __typeof__(*(ptr)))__gu_val;			\
 } while (0)
 
+/*
+ * We must not call into the scheduler between uaccess_enable_not_uao() and
+ * uaccess_disable_not_uao(). As `x` and `ptr` could contain blocking functions,
+ * we must evaluate these outside of the critical section.
+ */
 #define __raw_get_user(x, ptr, err)					\
 do {									\
+	__typeof__(*(ptr)) __user *__rgu_ptr = (ptr);			\
+	__typeof__(x) __rgu_val;					\
 	__chk_user_ptr(ptr);						\
+									\
 	uaccess_enable_not_uao();					\
-	__raw_get_mem("ldtr", x, ptr, err);				\
+	__raw_get_mem("ldtr", __rgu_val, __rgu_ptr, err);		\
 	uaccess_disable_not_uao();					\
+									\
+	(x) = __rgu_val;						\
 } while (0)
 
 #define __get_user_error(x, ptr, err)					\
@@ -371,14 +381,22 @@ do {									\
 
 #define get_user	__get_user
 
+/*
+ * We must not call into the scheduler between __uaccess_enable_tco_async() and
+ * __uaccess_disable_tco_async(). As `dst` and `src` may contain blocking
+ * functions, we must evaluate these outside of the critical section.
+ */
 #define __get_kernel_nofault(dst, src, type, err_label)			\
 do {									\
+	__typeof__(dst) __gkn_dst = (dst);				\
+	__typeof__(src) __gkn_src = (src);				\
 	int __gkn_err = 0;						\
 									\
 	__uaccess_enable_tco_async();					\
-	__raw_get_mem("ldr", *((type *)(dst)),				\
-		      (__force type *)(src), __gkn_err);		\
+	__raw_get_mem("ldr", *((type *)(__gkn_dst)),			\
+		      (__force type *)(__gkn_src), __gkn_err);		\
 	__uaccess_disable_tco_async();					\
+									\
 	if (unlikely(__gkn_err))					\
 		goto err_label;						\
 } while (0)
@@ -417,11 +435,19 @@ do {									\
 	}								\
 } while (0)
 
+/*
+ * We must not call into the scheduler between uaccess_enable_not_uao() and
+ * uaccess_disable_not_uao(). As `x` and `ptr` could contain blocking functions,
+ * we must evaluate these outside of the critical section.
+ */
 #define __raw_put_user(x, ptr, err)					\
 do {									\
-	__chk_user_ptr(ptr);						\
+	__typeof__(*(ptr)) __user *__rpu_ptr = (ptr);			\
+	__typeof__(*(ptr)) __rpu_val = (x);				\
+	__chk_user_ptr(__rpu_ptr);					\
+									\
 	uaccess_enable_not_uao();					\
-	__raw_put_mem("sttr", x, ptr, err);				\
+	__raw_put_mem("sttr", __rpu_val, __rpu_ptr, err);		\
 	uaccess_disable_not_uao();					\
 } while (0)
 
@@ -446,14 +472,22 @@ do {									\
 
 #define put_user	__put_user
 
+/*
+ * We must not call into the scheduler between __uaccess_enable_tco_async() and
+ * __uaccess_disable_tco_async(). As `dst` and `src` may contain blocking
+ * functions, we must evaluate these outside of the critical section.
+ */
 #define __put_kernel_nofault(dst, src, type, err_label)			\
 do {									\
+	__typeof__(dst) __pkn_dst = (dst);				\
+	__typeof__(src) __pkn_src = (src);				\
 	int __pkn_err = 0;						\
 									\
 	__uaccess_enable_tco_async();					\
-	__raw_put_mem("str", *((type *)(src)),				\
-		      (__force type *)(dst), __pkn_err);		\
+	__raw_put_mem("str", *((type *)(__pkn_src)),			\
+		      (__force type *)(__pkn_dst), __pkn_err);		\
 	__uaccess_disable_tco_async();					\
+									\
 	if (unlikely(__pkn_err))					\
 		goto err_label;						\
 } while(0)
-- 
GitLab


From 07ca3d8f74b8a84e3fbeddeb2e47969b1f26ef6b Mon Sep 17 00:00:00 2001
From: Guangming <Guangming.Cao@mediatek.com>
Date: Fri, 26 Nov 2021 15:49:04 +0800
Subject: [PATCH 3721/4878] UPSTREAM: dma-buf: system_heap: Use
 'for_each_sgtable_sg' in pages free flow
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For previous version, it uses 'sg_table.nent's to traverse sg_table in pages
free flow.
However, 'sg_table.nents' is reassigned in 'dma_map_sg', it means the number of
created entries in the DMA adderess space.
So, use 'sg_table.nents' in pages free flow will case some pages can't be freed.

Here we should use sg_table.orig_nents to free pages memory, but use the
sgtable helper 'for each_sgtable_sg'(, instead of the previous rather common
helper 'for_each_sg' which maybe cause memory leak) is much better.

Fixes: d963ab0f15fb0 ("dma-buf: system_heap: Allocate higher order pages if available")
Signed-off-by: Guangming <Guangming.Cao@mediatek.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Cc: <stable@vger.kernel.org> # 5.11.*
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211126074904.88388-1-guangming.cao@mediatek.com
(cherry picked from commit 679d94cd7d900871e5bc9cf780bd5b73af35ab42)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I79429757c76cf85ee4a208fb5b4ad77d57cc5605
---
 drivers/dma-buf/heaps/system_heap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 2aa3b5eafaff5..bbca2e195b4f4 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -338,7 +338,7 @@ static void system_heap_buf_free(struct deferred_freelist_item *item,
 			reason = DF_UNDER_PRESSURE; // On failure, just free
 
 	table = &buffer->sg_table;
-	for_each_sg(table->sgl, sg, table->nents, i) {
+	for_each_sgtable_sg(table, sg, i) {
 		struct page *page = sg_page(sg);
 
 		if (reason == DF_UNDER_PRESSURE) {
-- 
GitLab


From ea84bac2171a328c0f5d08aa38c262f16dbcef0e Mon Sep 17 00:00:00 2001
From: Reiji Watanabe <reijiw@google.com>
Date: Sun, 5 Dec 2021 16:47:36 -0800
Subject: [PATCH 3722/4878] UPSTREAM: arm64: mte: DC {GVA,GZVA} shouldn't be
 used when DCZID_EL0.DZP == 1

Currently, mte_set_mem_tag_range() and mte_zero_clear_page_tags() use
DC {GVA,GZVA} unconditionally.  But, they should make sure that
DCZID_EL0.DZP, which indicates whether or not use of those instructions
is prohibited, is zero when using those instructions.
Use ST{G,ZG,Z2G} instead when DCZID_EL0.DZP == 1.

Fixes: 013bb59dbb7c ("arm64: mte: handle tags zeroing at page allocation time")
Fixes: 3d0cca0b02ac ("kasan: speed up mte_set_mem_tag_range")
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Link: https://lore.kernel.org/r/20211206004736.1520989-3-reijiw@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 685e2564daa1493053fcd7f1dbed38b35ee2f3cb)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I440cee3e08bf594f6532364981b67f2968fb6fc1
---
 arch/arm64/include/asm/mte-kasan.h | 8 +++++---
 arch/arm64/lib/mte.S               | 8 +++++++-
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/mte-kasan.h b/arch/arm64/include/asm/mte-kasan.h
index d952352bd0088..e541dba6dd23f 100644
--- a/arch/arm64/include/asm/mte-kasan.h
+++ b/arch/arm64/include/asm/mte-kasan.h
@@ -84,10 +84,12 @@ static inline void __dc_gzva(u64 p)
 static inline void mte_set_mem_tag_range(void *addr, size_t size, u8 tag,
 					 bool init)
 {
-	u64 curr, mask, dczid_bs, end1, end2, end3;
+	u64 curr, mask, dczid, dczid_bs, dczid_dzp, end1, end2, end3;
 
 	/* Read DC G(Z)VA block size from the system register. */
-	dczid_bs = 4ul << (read_cpuid(DCZID_EL0) & 0xf);
+	dczid = read_cpuid(DCZID_EL0);
+	dczid_bs = 4ul << (dczid & 0xf);
+	dczid_dzp = (dczid >> 4) & 1;
 
 	curr = (u64)__tag_set(addr, tag);
 	mask = dczid_bs - 1;
@@ -106,7 +108,7 @@ static inline void mte_set_mem_tag_range(void *addr, size_t size, u8 tag,
 	 */
 #define SET_MEMTAG_RANGE(stg_post, dc_gva)		\
 	do {						\
-		if (size >= 2 * dczid_bs) {		\
+		if (!dczid_dzp && size >= 2 * dczid_bs) {\
 			do {				\
 				curr = stg_post(curr);	\
 			} while (curr < end1);		\
diff --git a/arch/arm64/lib/mte.S b/arch/arm64/lib/mte.S
index ebb6337faaf92..a754e15e629fa 100644
--- a/arch/arm64/lib/mte.S
+++ b/arch/arm64/lib/mte.S
@@ -43,17 +43,23 @@ SYM_FUNC_END(mte_clear_page_tags)
  *	x0 - address to the beginning of the page
  */
 SYM_FUNC_START(mte_zero_clear_page_tags)
+	and	x0, x0, #(1 << MTE_TAG_SHIFT) - 1	// clear the tag
 	mrs	x1, dczid_el0
+	tbnz	x1, #4, 2f	// Branch if DC GZVA is prohibited
 	and	w1, w1, #0xf
 	mov	x2, #4
 	lsl	x1, x2, x1
-	and	x0, x0, #(1 << MTE_TAG_SHIFT) - 1	// clear the tag
 
 1:	dc	gzva, x0
 	add	x0, x0, x1
 	tst	x0, #(PAGE_SIZE - 1)
 	b.ne	1b
 	ret
+
+2:	stz2g	x0, [x0], #(MTE_GRANULE_SIZE * 2)
+	tst	x0, #(PAGE_SIZE - 1)
+	b.ne	2b
+	ret
 SYM_FUNC_END(mte_zero_clear_page_tags)
 
 /*
-- 
GitLab


From ee4ea192370cef1783241b0f24e3fa1ecd09dc50 Mon Sep 17 00:00:00 2001
From: Douglas Anderson <dianders@chromium.org>
Date: Tue, 7 Dec 2021 09:43:41 -0800
Subject: [PATCH 3723/4878] UPSTREAM: Revert "usb: dwc3: dwc3-qcom: Enable
 tx-fifo-resize property by default"

This reverts commit cefdd52fa0455c0555c30927386ee466a108b060.

On sc7180-trogdor class devices with 'fw_devlink=permissive' and KASAN
enabled, you'll see a Use-After-Free reported at bootup.

The root of the problem is that dwc3_qcom_of_register_core() is adding
a devm-allocated "tx-fifo-resize" property to its device tree node
using of_add_property().

The issue is that of_add_property() makes a _permanent_ addition to
the device tree that lasts until reboot. That means allocating memory
for the property using "devm" managed memory is a terrible idea since
that memory will be freed upon probe deferral or device unbinding.

Let's revert the patch since the system is still functional without
it. The fact that of_add_property() makes a permanent change is extra
fodder for those folks who were aruging that the device tree isn't
really the right way to pass information between parts of the
driver. It is an exercise left to the reader to submit a patch
re-adding the new feature in a way that makes everyone happier.

Fixes: cefdd52fa045 ("usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20211207094327.1.Ie3cde3443039342e2963262a4c3ac36dc2c08b30@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 6a97cee39d8f2ed4d6e35a09a302dae1d566db36)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: If06e0973bc36bf45a67567b4d02ff438db40d419
---
 drivers/usb/dwc3/dwc3-qcom.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index a4fe2d5406ea1..504f8af4d0f80 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -644,7 +644,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);
 	struct device_node	*np = pdev->dev.of_node, *dwc3_np;
 	struct device		*dev = &pdev->dev;
-	struct property		*prop;
 	int			ret;
 
 	dwc3_np = of_get_child_by_name(np, "dwc3");
@@ -653,20 +652,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	prop = devm_kzalloc(dev, sizeof(*prop), GFP_KERNEL);
-	if (!prop) {
-		ret = -ENOMEM;
-		dev_err(dev, "unable to allocate memory for property\n");
-		goto node_put;
-	}
-
-	prop->name = "tx-fifo-resize";
-	ret = of_add_property(dwc3_np, prop);
-	if (ret) {
-		dev_err(dev, "unable to add property\n");
-		goto node_put;
-	}
-
 	ret = of_platform_populate(np, NULL, NULL, dev);
 	if (ret) {
 		dev_err(dev, "failed to register dwc3 core - %d\n", ret);
-- 
GitLab


From 2e43c541de8b9136a8e275e8a6f3e925e1ec0360 Mon Sep 17 00:00:00 2001
From: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Date: Fri, 10 Dec 2021 14:47:02 -0800
Subject: [PATCH 3724/4878] UPSTREAM: mm/slub: fix endianness bug for
 alloc/free_traces attributes

On big-endian s390, the alloc/free_traces attributes produce endless
output, because of always 0 idx in slab_debugfs_show().

idx is de-referenced from *v, which points to a loff_t value, with

    unsigned int idx = *(unsigned int *)v;

This will only give the upper 32 bits on big-endian, which remain 0.

Instead of only fixing this de-reference, during discussion it seemed
more appropriate to change the seq_ops so that they use an explicit
iterator in private loc_track struct.

This patch adds idx to loc_track, which will also fix the endianness
bug.

Link: https://lore.kernel.org/r/20211117193932.4049412-1-gerald.schaefer@linux.ibm.com
Link: https://lkml.kernel.org/r/20211126171848.17534-1-gerald.schaefer@linux.ibm.com
Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reported-by: Steffen Maier <maier@linux.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 005a79e5c254c3f60ec269a459cc41b55028c798)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I0b33b886290404ec1cc61b15105de197161472eb
---
 mm/slub.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index a34928573722e..d59262454f879 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4678,6 +4678,7 @@ struct loc_track {
 	unsigned long max;
 	unsigned long count;
 	struct location *loc;
+	loff_t idx;
 };
 
 static struct dentry *slab_debugfs_root;
@@ -5709,11 +5710,11 @@ __initcall(slab_sysfs_init);
 #if defined(CONFIG_SLUB_DEBUG) && defined(CONFIG_DEBUG_FS)
 static int slab_debugfs_show(struct seq_file *seq, void *v)
 {
-
-	struct location *l;
-	unsigned int idx = *(unsigned int *)v;
 	struct loc_track *t = seq->private;
+	struct location *l;
+	unsigned long idx;
 
+	idx = (unsigned long) t->idx;
 	if (idx < t->count) {
 		l = &t->loc[idx];
 
@@ -5762,16 +5763,18 @@ static void *slab_debugfs_next(struct seq_file *seq, void *v, loff_t *ppos)
 {
 	struct loc_track *t = seq->private;
 
-	v = ppos;
-	++*ppos;
+	t->idx = ++(*ppos);
 	if (*ppos <= t->count)
-		return v;
+		return ppos;
 
 	return NULL;
 }
 
 static void *slab_debugfs_start(struct seq_file *seq, loff_t *ppos)
 {
+	struct loc_track *t = seq->private;
+
+	t->idx = *ppos;
 	return ppos;
 }
 
-- 
GitLab


From 5eba720c442f94e28f66cfde29da87e2234b0670 Mon Sep 17 00:00:00 2001
From: Baokun Li <libaokun1@huawei.com>
Date: Fri, 24 Dec 2021 21:12:32 -0800
Subject: [PATCH 3725/4878] UPSTREAM: kfence: fix memory leak when cat kfence
 objects

Hulk robot reported a kmemleak problem:

    unreferenced object 0xffff93d1d8cc02e8 (size 248):
      comm "cat", pid 23327, jiffies 4624670141 (age 495992.217s)
      hex dump (first 32 bytes):
        00 40 85 19 d4 93 ff ff 00 10 00 00 00 00 00 00  .@..............
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      backtrace:
         seq_open+0x2a/0x80
         full_proxy_open+0x167/0x1e0
         do_dentry_open+0x1e1/0x3a0
         path_openat+0x961/0xa20
         do_filp_open+0xae/0x120
         do_sys_openat2+0x216/0x2f0
         do_sys_open+0x57/0x80
         do_syscall_64+0x33/0x40
         entry_SYSCALL_64_after_hwframe+0x44/0xa9
    unreferenced object 0xffff93d419854000 (size 4096):
      comm "cat", pid 23327, jiffies 4624670141 (age 495992.217s)
      hex dump (first 32 bytes):
        6b 66 65 6e 63 65 2d 23 32 35 30 3a 20 30 78 30  kfence-#250: 0x0
        30 30 30 30 30 30 30 37 35 34 62 64 61 31 32 2d  0000000754bda12-
      backtrace:
         seq_read_iter+0x313/0x440
         seq_read+0x14b/0x1a0
         full_proxy_read+0x56/0x80
         vfs_read+0xa5/0x1b0
         ksys_read+0xa0/0xf0
         do_syscall_64+0x33/0x40
         entry_SYSCALL_64_after_hwframe+0x44/0xa9

I find that we can easily reproduce this problem with the following
commands:

	cat /sys/kernel/debug/kfence/objects
	echo scan > /sys/kernel/debug/kmemleak
	cat /sys/kernel/debug/kmemleak

The leaked memory is allocated in the stack below:

    do_syscall_64
      do_sys_open
        do_dentry_open
          full_proxy_open
            seq_open            ---> alloc seq_file
      vfs_read
        full_proxy_read
          seq_read
            seq_read_iter
              traverse          ---> alloc seq_buf

And it should have been released in the following process:

    do_syscall_64
      syscall_exit_to_user_mode
        exit_to_user_mode_prepare
          task_work_run
            ____fput
              __fput
                full_proxy_release  ---> free here

However, the release function corresponding to file_operations is not
implemented in kfence.  As a result, a memory leak occurs.  Therefore,
the solution to this problem is to implement the corresponding release
function.

Link: https://lkml.kernel.org/r/20211206133628.2822545-1-libaokun1@huawei.com
Fixes: 0ce20dd84089 ("mm: add Kernel Electric-Fence infrastructure")
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Acked-by: Marco Elver <elver@google.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 0129ab1f268b6cf88825eae819b9b84aa0a85634)
Bug: 187129171
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I7e256d06dbd1519794c7bda85604008c890ca46a
---
 mm/kfence/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/kfence/core.c b/mm/kfence/core.c
index 575c685aa6422..56bbacba7db2c 100644
--- a/mm/kfence/core.c
+++ b/mm/kfence/core.c
@@ -574,6 +574,7 @@ static const struct file_operations objects_fops = {
 	.open = open_objects,
 	.read = seq_read,
 	.llseek = seq_lseek,
+	.release = seq_release,
 };
 
 static int __init kfence_debugfs_init(void)
-- 
GitLab


From 6d6288c745b29f245fb34071655fc11e24692cdc Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Tue, 15 Feb 2022 11:52:16 +0800
Subject: [PATCH 3726/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211546634
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: Ife78f9117f387983b8fca6b934befd8218ea439a
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 47b3d53338334..3fc15a438a438 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2109,6 +2109,7 @@
   time64_to_tm
   topology_set_thermal_pressure
   _totalram_pages
+  touch_softlockup_watchdog
   __trace_bprintk
   trace_event_buffer_commit
   trace_event_buffer_reserve
-- 
GitLab


From adebe26902e2a61e4678d10f68a45fd3e489ab7e Mon Sep 17 00:00:00 2001
From: Zqiang <qiang.zhang@windriver.com>
Date: Fri, 20 Nov 2020 06:53:11 -0800
Subject: [PATCH 3727/4878] UPSTREAM: rcu: Record kvfree_call_rcu() call stack
 for KASAN

This commit adds a call to kasan_record_aux_stack() in kvfree_call_rcu()
in order to record the call stack of the code that caused the object
to be freed.  Please note that this function does not update the
allocated/freed state, which is important because RCU readers might
still be referencing this object.

Acked-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
(cherry picked from commit 84109ab58590dc6c4e7eb36329fdc7ec121ed5a5)
Bug: 217222520
Change-Id: Ia7c27babe4b2318ab116b508578c17e8967e70b1
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 kernel/rcu/tree.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 844c35803739e..2a8af69a0b207 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3497,6 +3497,7 @@ void kvfree_call_rcu(struct rcu_head *head, rcu_callback_t func)
 		goto unlock_return;
 	}
 
+	kasan_record_aux_stack(ptr);
 	success = kvfree_call_rcu_add_ptr_to_bulk(krcp, ptr);
 	if (!success) {
 		run_page_cache_worker(krcp);
-- 
GitLab


From ad802e40d0a1725bc60d6c4ae3cb62068da3acb3 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ardb@kernel.org>
Date: Wed, 10 Mar 2021 11:49:40 +0100
Subject: [PATCH 3728/4878] UPSTREAM: arm64: mm: add missing P4D definitions
 and use them consistently

Even though level 0, 1 and 2 descriptors share the same attribute
encodings, let's be a bit more consistent about using the right one at
the right level. So add new macros for level 0/P4D definitions, and
clean up some inconsistencies involving these macros.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210310104942.174584-2-ardb@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit c1fd78a77704318de34ba4b780cd99a5ef96d162)
Bug: 217222520
Change-Id: Iea4dfc78e3c221afb5f9d58a1b5549058700b6eb
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/pgalloc.h       | 4 ++--
 arch/arm64/include/asm/pgtable-hwdef.h | 9 +++++++++
 arch/arm64/mm/kasan_init.c             | 4 ++--
 arch/arm64/mm/mmu.c                    | 6 +++---
 4 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index 3c6a7f5988b12..27cc643d05095 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -27,7 +27,7 @@ static inline void __pud_populate(pud_t *pudp, phys_addr_t pmdp, pudval_t prot)
 
 static inline void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmdp)
 {
-	__pud_populate(pudp, __pa(pmdp), PMD_TYPE_TABLE);
+	__pud_populate(pudp, __pa(pmdp), PUD_TYPE_TABLE);
 }
 #else
 static inline void __pud_populate(pud_t *pudp, phys_addr_t pmdp, pudval_t prot)
@@ -45,7 +45,7 @@ static inline void __p4d_populate(p4d_t *p4dp, phys_addr_t pudp, p4dval_t prot)
 
 static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4dp, pud_t *pudp)
 {
-	__p4d_populate(p4dp, __pa(pudp), PUD_TYPE_TABLE);
+	__p4d_populate(p4dp, __pa(pudp), P4D_TYPE_TABLE);
 }
 #else
 static inline void __p4d_populate(p4d_t *p4dp, phys_addr_t pudp, p4dval_t prot)
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 42442a0ae2ab9..e64e77a345b27 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -94,6 +94,15 @@
 /*
  * Hardware page table definitions.
  *
+ * Level 0 descriptor (P4D).
+ */
+#define P4D_TYPE_TABLE		(_AT(p4dval_t, 3) << 0)
+#define P4D_TABLE_BIT		(_AT(p4dval_t, 1) << 1)
+#define P4D_TYPE_MASK		(_AT(p4dval_t, 3) << 0)
+#define P4D_TYPE_SECT		(_AT(p4dval_t, 1) << 0)
+#define P4D_SECT_RDONLY		(_AT(p4dval_t, 1) << 7)		/* AP[2] */
+
+/*
  * Level 1 descriptor (PUD).
  */
 #define PUD_TYPE_TABLE		(_AT(pudval_t, 3) << 0)
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index d8e66c78440ec..9fe40cbbd8c0c 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -79,7 +79,7 @@ static pmd_t *__init kasan_pmd_offset(pud_t *pudp, unsigned long addr, int node,
 		phys_addr_t pmd_phys = early ?
 				__pa_symbol(kasan_early_shadow_pmd)
 					: kasan_alloc_zeroed_page(node);
-		__pud_populate(pudp, pmd_phys, PMD_TYPE_TABLE);
+		__pud_populate(pudp, pmd_phys, PUD_TYPE_TABLE);
 	}
 
 	return early ? pmd_offset_kimg(pudp, addr) : pmd_offset(pudp, addr);
@@ -92,7 +92,7 @@ static pud_t *__init kasan_pud_offset(p4d_t *p4dp, unsigned long addr, int node,
 		phys_addr_t pud_phys = early ?
 				__pa_symbol(kasan_early_shadow_pud)
 					: kasan_alloc_zeroed_page(node);
-		__p4d_populate(p4dp, pud_phys, PMD_TYPE_TABLE);
+		__p4d_populate(p4dp, pud_phys, P4D_TYPE_TABLE);
 	}
 
 	return early ? pud_offset_kimg(p4dp, addr) : pud_offset(p4dp, addr);
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 511e2f412c198..d3b330f954f75 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -309,7 +309,7 @@ static void alloc_init_pud(pgd_t *pgdp, unsigned long addr, unsigned long end,
 		phys_addr_t pud_phys;
 		BUG_ON(!pgtable_alloc);
 		pud_phys = pgtable_alloc(PUD_SHIFT);
-		__p4d_populate(p4dp, pud_phys, PUD_TYPE_TABLE);
+		__p4d_populate(p4dp, pud_phys, P4D_TYPE_TABLE);
 		p4d = READ_ONCE(*p4dp);
 	}
 	BUG_ON(p4d_bad(p4d));
@@ -1209,11 +1209,11 @@ void __init early_fixmap_init(void)
 		pudp = pud_offset_kimg(p4dp, addr);
 	} else {
 		if (p4d_none(p4d))
-			__p4d_populate(p4dp, __pa_symbol(bm_pud), PUD_TYPE_TABLE);
+			__p4d_populate(p4dp, __pa_symbol(bm_pud), P4D_TYPE_TABLE);
 		pudp = fixmap_pud(addr);
 	}
 	if (pud_none(READ_ONCE(*pudp)))
-		__pud_populate(pudp, __pa_symbol(bm_pmd), PMD_TYPE_TABLE);
+		__pud_populate(pudp, __pa_symbol(bm_pmd), PUD_TYPE_TABLE);
 	pmdp = fixmap_pmd(addr);
 	__pmd_populate(pmdp, __pa_symbol(bm_pte), PMD_TYPE_TABLE);
 
-- 
GitLab


From fa9eec8ca223abef3e82b3bde3b5b5cfe6a863b0 Mon Sep 17 00:00:00 2001
From: Lecopzer Chen <lecopzer.chen@mediatek.com>
Date: Wed, 24 Mar 2021 12:05:18 +0800
Subject: [PATCH 3729/4878] UPSTREAM: arm64: kasan: don't populate vmalloc area
 for CONFIG_KASAN_VMALLOC

Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9
("kasan: support backing vmalloc space with real shadow memory")

Like how the MODULES_VADDR does now, just not to early populate
the VMALLOC_START between VMALLOC_END.

Before:

MODULE_VADDR: no mapping, no zero shadow at init
VMALLOC_VADDR: backed with zero shadow at init

After:

MODULE_VADDR: no mapping, no zero shadow at init
VMALLOC_VADDR: no mapping, no zero shadow at init

Thus the mapping will get allocated on demand by the core function
of KASAN_VMALLOC.

  -----------  vmalloc_shadow_start
 |           |
 |           |
 |           | <= non-mapping
 |           |
 |           |
 |-----------|
 |///////////|<- kimage shadow with page table mapping.
 |-----------|
 |           |
 |           | <= non-mapping
 |           |
 ------------- vmalloc_shadow_end
 |00000000000|
 |00000000000| <= Zero shadow
 |00000000000|
 ------------- KASAN_SHADOW_END

Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210324040522.15548-2-lecopzer.chen@mediatek.com
[catalin.marinas@arm.com: add a build check on VMALLOC_START != MODULES_END]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 9a0732efa77418fc85b1bdc5ddee619e62f59545)
Bug: 217222520
Change-Id: I0a8c26aec95681bf314e65563199dab9cc827369
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/mm/kasan_init.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 9fe40cbbd8c0c..b6e412fcb0f14 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -214,6 +214,7 @@ static void __init kasan_init_shadow(void)
 {
 	u64 kimg_shadow_start, kimg_shadow_end;
 	u64 mod_shadow_start, mod_shadow_end;
+	u64 vmalloc_shadow_end;
 	phys_addr_t pa_start, pa_end;
 	u64 i;
 
@@ -223,6 +224,8 @@ static void __init kasan_init_shadow(void)
 	mod_shadow_start = (u64)kasan_mem_to_shadow((void *)MODULES_VADDR);
 	mod_shadow_end = (u64)kasan_mem_to_shadow((void *)MODULES_END);
 
+	vmalloc_shadow_end = (u64)kasan_mem_to_shadow((void *)VMALLOC_END);
+
 	/*
 	 * We are going to perform proper setup of shadow memory.
 	 * At first we should unmap early shadow (clear_pgds() call below).
@@ -241,12 +244,18 @@ static void __init kasan_init_shadow(void)
 
 	kasan_populate_early_shadow(kasan_mem_to_shadow((void *)PAGE_END),
 				   (void *)mod_shadow_start);
-	kasan_populate_early_shadow((void *)kimg_shadow_end,
-				   (void *)KASAN_SHADOW_END);
 
-	if (kimg_shadow_start > mod_shadow_end)
-		kasan_populate_early_shadow((void *)mod_shadow_end,
-					    (void *)kimg_shadow_start);
+	if (IS_ENABLED(CONFIG_KASAN_VMALLOC)) {
+		BUILD_BUG_ON(VMALLOC_START != MODULES_END);
+		kasan_populate_early_shadow((void *)vmalloc_shadow_end,
+					    (void *)KASAN_SHADOW_END);
+	} else {
+		kasan_populate_early_shadow((void *)kimg_shadow_end,
+					    (void *)KASAN_SHADOW_END);
+		if (kimg_shadow_start > mod_shadow_end)
+			kasan_populate_early_shadow((void *)mod_shadow_end,
+						    (void *)kimg_shadow_start);
+	}
 
 	for_each_mem_range(i, &pa_start, &pa_end) {
 		void *start = (void *)__phys_to_virt(pa_start);
-- 
GitLab


From 8de0c6009eaa83ad8160e0685f8cb4a62fc1941b Mon Sep 17 00:00:00 2001
From: Lecopzer Chen <lecopzer.chen@mediatek.com>
Date: Wed, 24 Mar 2021 12:05:19 +0800
Subject: [PATCH 3730/4878] UPSTREAM: arm64: kasan: abstract _text and _end to
 KERNEL_START/END

Arm64 provides defined macro for KERNEL_START and KERNEL_END,
thus replace them by the abstration instead of using _text and _end.

Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210324040522.15548-3-lecopzer.chen@mediatek.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 7d7b88ff5f8fd79a72baacc521407a3101f0ffae)
Bug: 217222520
Change-Id: If95dbaab9450fb4e04f1a77aa79bc241fdfccab0
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/mm/kasan_init.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index b6e412fcb0f14..61b52a92b8b68 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -218,8 +218,8 @@ static void __init kasan_init_shadow(void)
 	phys_addr_t pa_start, pa_end;
 	u64 i;
 
-	kimg_shadow_start = (u64)kasan_mem_to_shadow(_text) & PAGE_MASK;
-	kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(_end));
+	kimg_shadow_start = (u64)kasan_mem_to_shadow(KERNEL_START) & PAGE_MASK;
+	kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(KERNEL_END));
 
 	mod_shadow_start = (u64)kasan_mem_to_shadow((void *)MODULES_VADDR);
 	mod_shadow_end = (u64)kasan_mem_to_shadow((void *)MODULES_END);
@@ -240,7 +240,7 @@ static void __init kasan_init_shadow(void)
 	clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
 
 	kasan_map_populate(kimg_shadow_start, kimg_shadow_end,
-			   early_pfn_to_nid(virt_to_pfn(lm_alias(_text))));
+			   early_pfn_to_nid(virt_to_pfn(lm_alias(KERNEL_START))));
 
 	kasan_populate_early_shadow(kasan_mem_to_shadow((void *)PAGE_END),
 				   (void *)mod_shadow_start);
-- 
GitLab


From 0b00ead93f0ab77c06d3b1f72a6dd4378ed66cf3 Mon Sep 17 00:00:00 2001
From: Lecopzer Chen <lecopzer.chen@mediatek.com>
Date: Wed, 24 Mar 2021 12:05:20 +0800
Subject: [PATCH 3731/4878] UPSTREAM: arm64: Kconfig: support
 CONFIG_KASAN_VMALLOC

We can backed shadow memory in vmalloc area after vmalloc area
isn't populated at kasan_init(), thus make KASAN_VMALLOC selectable.

Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210324040522.15548-4-lecopzer.chen@mediatek.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 71b613fc0c69080262f4ebe810c3d909d7ff8132)
Bug: 217222520
Change-Id: Icd109f9f43c7ca91e2d353e86668cb31a2c53840
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 8274bd349d388..f43937ac601cb 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -141,6 +141,7 @@ config ARM64
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_JUMP_LABEL_RELATIVE
 	select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
+	select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
 	select HAVE_ARCH_KASAN_SW_TAGS if HAVE_ARCH_KASAN
 	select HAVE_ARCH_KASAN_HW_TAGS if (HAVE_ARCH_KASAN && ARM64_MTE)
 	select HAVE_ARCH_KFENCE
-- 
GitLab


From 0010123f0ab52180678c032ffb2d61dc3b675d2b Mon Sep 17 00:00:00 2001
From: Lecopzer Chen <lecopzer.chen@mediatek.com>
Date: Wed, 24 Mar 2021 12:05:21 +0800
Subject: [PATCH 3732/4878] UPSTREAM: arm64: kaslr: support randomized module
 area with KASAN_VMALLOC

After KASAN_VMALLOC works in arm64, we can randomize module region
into vmalloc area now.

Test:
	VMALLOC area ffffffc010000000 fffffffdf0000000

	before the patch:
		module_alloc_base/end ffffffc008b80000 ffffffc010000000
	after the patch:
		module_alloc_base/end ffffffdcf4bed000 ffffffc010000000

	And the function that insmod some modules is fine.

Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210324040522.15548-5-lecopzer.chen@mediatek.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 31d02e7ab00873befd2cfb6e44581490d947c38b)
Bug: 217222520
Change-Id: Ie62bd82b4f584bce3230b85b06a5b1d734f2c908
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/kaslr.c  | 18 ++++++++++--------
 arch/arm64/kernel/module.c | 16 +++++++++-------
 2 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c
index 8997d6445f218..cfa2cfde3019d 100644
--- a/arch/arm64/kernel/kaslr.c
+++ b/arch/arm64/kernel/kaslr.c
@@ -130,15 +130,17 @@ u64 __init kaslr_early_init(void)
 	/* use the top 16 bits to randomize the linear region */
 	memstart_offset_seed = seed >> 48;
 
-	if (IS_ENABLED(CONFIG_KASAN_GENERIC) ||
-	    IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+	if (!IS_ENABLED(CONFIG_KASAN_VMALLOC) &&
+	    (IS_ENABLED(CONFIG_KASAN_GENERIC) ||
+	     IS_ENABLED(CONFIG_KASAN_SW_TAGS)))
 		/*
-		 * KASAN does not expect the module region to intersect the
-		 * vmalloc region, since shadow memory is allocated for each
-		 * module at load time, whereas the vmalloc region is shadowed
-		 * by KASAN zero pages. So keep modules out of the vmalloc
-		 * region if KASAN is enabled, and put the kernel well within
-		 * 4 GB of the module region.
+		 * KASAN without KASAN_VMALLOC does not expect the module region
+		 * to intersect the vmalloc region, since shadow memory is
+		 * allocated for each module at load time, whereas the vmalloc
+		 * region is shadowed by KASAN zero pages. So keep modules
+		 * out of the vmalloc region if KASAN is enabled without
+		 * KASAN_VMALLOC, and put the kernel well within 4 GB of the
+		 * module region.
 		 */
 		return offset % SZ_2G;
 
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index fe21e0f06492e..b5ec010c481f3 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -40,14 +40,16 @@ void *module_alloc(unsigned long size)
 				NUMA_NO_NODE, __builtin_return_address(0));
 
 	if (!p && IS_ENABLED(CONFIG_ARM64_MODULE_PLTS) &&
-	    !IS_ENABLED(CONFIG_KASAN_GENERIC) &&
-	    !IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+	    (IS_ENABLED(CONFIG_KASAN_VMALLOC) ||
+	     (!IS_ENABLED(CONFIG_KASAN_GENERIC) &&
+	      !IS_ENABLED(CONFIG_KASAN_SW_TAGS))))
 		/*
-		 * KASAN can only deal with module allocations being served
-		 * from the reserved module region, since the remainder of
-		 * the vmalloc region is already backed by zero shadow pages,
-		 * and punching holes into it is non-trivial. Since the module
-		 * region is not randomized when KASAN is enabled, it is even
+		 * KASAN without KASAN_VMALLOC can only deal with module
+		 * allocations being served from the reserved module region,
+		 * since the remainder of the vmalloc region is already
+		 * backed by zero shadow pages, and punching holes into it
+		 * is non-trivial. Since the module region is not randomized
+		 * when KASAN is enabled without KASAN_VMALLOC, it is even
 		 * less likely that the module region gets exhausted, so we
 		 * can simply omit this fallback in that case.
 		 */
-- 
GitLab


From a24258647887e29aba2442f7333af9a62f09abc1 Mon Sep 17 00:00:00 2001
From: Lecopzer Chen <lecopzer.chen@mediatek.com>
Date: Wed, 24 Mar 2021 12:05:22 +0800
Subject: [PATCH 3733/4878] UPSTREAM: arm64: Kconfig: select KASAN_VMALLOC if
 KANSAN_GENERIC is enabled

Before this patch, someone who wants to use VMAP_STACK when
KASAN_GENERIC enabled must explicitly select KASAN_VMALLOC.

>From Will's suggestion [1]:
  > I would _really_ like to move to VMAP stack unconditionally, and
  > that would effectively force KASAN_VMALLOC to be set if KASAN is in use

Because VMAP_STACK now depends on either HW_TAGS or KASAN_VMALLOC if
KASAN enabled, in order to make VMAP_STACK selected unconditionally,
we bind KANSAN_GENERIC and KASAN_VMALLOC together.

Note that SW_TAGS supports neither VMAP_STACK nor KASAN_VMALLOC now,
so this is the first step to make VMAP_STACK selected unconditionally.

Bind KANSAN_GENERIC and KASAN_VMALLOC together is supposed to cost more
memory at runtime, thus the alternative is using SW_TAGS KASAN instead.

[1]: https://lore.kernel.org/lkml/20210204150100.GE20815@willie-the-truck/

Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210324040522.15548-6-lecopzer.chen@mediatek.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit acc3042d62cb92c3776767f09f665511c903ef2d)
Bug: 217222520
Change-Id: I09721e264a132f832e661ef322f85666ef311955
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f43937ac601cb..6ab1e6ca20579 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -198,6 +198,7 @@ config ARM64
 	select IOMMU_DMA if IOMMU_SUPPORT
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
+	select KASAN_VMALLOC if KASAN_GENERIC
 	select MODULES_USE_ELF_RELA
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
-- 
GitLab


From 79a041f372f649fb6be07570e442907a25c9cbec Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:12 -0700
Subject: [PATCH 3734/4878] UPSTREAM: kasan: docs: clean up sections

Update KASAN documentation:

 - Give some sections clearer names.

 - Remove unneeded subsections in the "Tests" section.

 - Move the "For developers" section and split into subsections.

Link: https://lkml.kernel.org/r/c2bbb56eaea80ad484f0ee85bb71959a3a63f1d7.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 96d7d1415ae8beb3f6ec62107a97ae73db611213)
Bug: 217222520
Change-Id: Ic20efcfb1db286fd863246addae2e2173bd807a8
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 54 +++++++++++++++----------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 075ef8e17b64c..b0a256105c28f 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -177,24 +177,6 @@ particular KASAN features.
   report or also panic the kernel (default: ``report``). Note, that tag
   checking gets disabled after the first reported bug.
 
-For developers
-~~~~~~~~~~~~~~
-
-Software KASAN modes use compiler instrumentation to insert validity checks.
-Such instrumentation might be incompatible with some part of the kernel, and
-therefore needs to be disabled. To disable instrumentation for specific files
-or directories, add a line similar to the following to the respective kernel
-Makefile:
-
-- For a single file (e.g. main.o)::
-
-    KASAN_SANITIZE_main.o := n
-
-- For all files in one directory::
-
-    KASAN_SANITIZE := n
-
-
 Implementation details
 ----------------------
 
@@ -308,8 +290,8 @@ support MTE (but supports TBI).
 Hardware tag-based KASAN only reports the first found bug. After that MTE tag
 checking gets disabled.
 
-What memory accesses are sanitised by KASAN?
---------------------------------------------
+Shadow memory
+-------------
 
 The kernel maps memory in a number of different parts of the address
 space. This poses something of a problem for KASAN, which requires
@@ -320,8 +302,8 @@ The range of kernel virtual addresses is large: there is not enough
 real memory to support a real shadow region for every address that
 could be accessed by the kernel.
 
-By default
-~~~~~~~~~~
+Default behaviour
+~~~~~~~~~~~~~~~~~
 
 By default, architectures only map real memory over the shadow region
 for the linear mapping (and potentially other small areas). For all
@@ -371,8 +353,29 @@ unmapped. This will require changes in arch-specific code.
 This allows ``VMAP_STACK`` support on x86, and can simplify support of
 architectures that do not have a fixed module region.
 
-CONFIG_KASAN_KUNIT_TEST and CONFIG_KASAN_MODULE_TEST
-----------------------------------------------------
+For developers
+--------------
+
+Ignoring accesses
+~~~~~~~~~~~~~~~~~
+
+Software KASAN modes use compiler instrumentation to insert validity checks.
+Such instrumentation might be incompatible with some part of the kernel, and
+therefore needs to be disabled. To disable instrumentation for specific files
+or directories, add a line similar to the following to the respective kernel
+Makefile:
+
+- For a single file (e.g. main.o)::
+
+    KASAN_SANITIZE_main.o := n
+
+- For all files in one directory::
+
+    KASAN_SANITIZE := n
+
+
+Tests
+~~~~~
 
 KASAN tests consist of two parts:
 
@@ -418,21 +421,18 @@ Or, if one of the tests failed::
 There are a few ways to run KUnit-compatible KASAN tests.
 
 1. Loadable module
-~~~~~~~~~~~~~~~~~~
 
 With ``CONFIG_KUNIT`` enabled, ``CONFIG_KASAN_KUNIT_TEST`` can be built as
 a loadable module and run on any architecture that supports KASAN by loading
 the module with insmod or modprobe. The module is called ``test_kasan``.
 
 2. Built-In
-~~~~~~~~~~~
 
 With ``CONFIG_KUNIT`` built-in, ``CONFIG_KASAN_KUNIT_TEST`` can be built-in
 on any architecure that supports KASAN. These and any other KUnit tests enabled
 will run and print the results at boot as a late-init call.
 
 3. Using kunit_tool
-~~~~~~~~~~~~~~~~~~~
 
 With ``CONFIG_KUNIT`` and ``CONFIG_KASAN_KUNIT_TEST`` built-in, it's also
 possible use ``kunit_tool`` to see the results of these and other KUnit tests
-- 
GitLab


From bbbf97400043bac85fdf4a4bbbdd346cd485ae73 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:15 -0700
Subject: [PATCH 3735/4878] UPSTREAM: kasan: docs: update overview section

Update the "Overview" section in KASAN documentation:

 - Outline main use cases for each mode.

 - Mention that HW_TAGS mode need compiler support too.

 - Move the part about SLUB/SLAB support from "Usage" to "Overview".

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/1486fba8514de3d7db2f47df2192db59228b0a7b.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 3cbc37dcdca273485f8ef909fab2c41e8fb5d3b9)
Bug: 217222520
Change-Id: I7206723e53bad4775e9b80cd553a0d34d619071c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index b0a256105c28f..703597a5c7708 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -11,17 +11,31 @@ designed to find out-of-bound and use-after-free bugs. KASAN has three modes:
 2. software tag-based KASAN (similar to userspace HWASan),
 3. hardware tag-based KASAN (based on hardware memory tagging).
 
-Software KASAN modes (1 and 2) use compile-time instrumentation to insert
-validity checks before every memory access, and therefore require a compiler
+Generic KASAN is mainly used for debugging due to a large memory overhead.
+Software tag-based KASAN can be used for dogfood testing as it has a lower
+memory overhead that allows using it with real workloads. Hardware tag-based
+KASAN comes with low memory and performance overheads and, therefore, can be
+used in production. Either as an in-field memory bug detector or as a security
+mitigation.
+
+Software KASAN modes (#1 and #2) use compile-time instrumentation to insert
+validity checks before every memory access and, therefore, require a compiler
 version that supports that.
 
-Generic KASAN is supported in both GCC and Clang. With GCC it requires version
+Generic KASAN is supported in GCC and Clang. With GCC, it requires version
 8.3.0 or later. Any supported Clang version is compatible, but detection of
 out-of-bounds accesses for global variables is only supported since Clang 11.
 
-Tag-based KASAN is only supported in Clang.
+Software tag-based KASAN mode is only supported in Clang.
 
-Currently generic KASAN is supported for the x86_64, arm64, xtensa, s390 and
+The hardware KASAN mode (#3) relies on hardware to perform the checks but
+still requires a compiler version that supports memory tagging instructions.
+This mode is supported in GCC 10+ and Clang 11+.
+
+Both software KASAN modes work with SLUB and SLAB memory allocators,
+while the hardware tag-based KASAN currently only supports SLUB.
+
+Currently, generic KASAN is supported for the x86_64, arm, arm64, xtensa, s390,
 and riscv architectures, and tag-based KASAN modes are supported only for arm64.
 
 Usage
@@ -39,9 +53,6 @@ For software modes, you also need to choose between CONFIG_KASAN_OUTLINE and
 CONFIG_KASAN_INLINE. Outline and inline are compiler instrumentation types.
 The former produces smaller binary while the latter is 1.1 - 2 times faster.
 
-Both software KASAN modes work with both SLUB and SLAB memory allocators,
-while the hardware tag-based KASAN currently only support SLUB.
-
 For better error reports that include stack traces, enable CONFIG_STACKTRACE.
 
 To augment reports with last allocation and freeing stack of the physical page,
-- 
GitLab


From e9ec48bda74525b3718644c6e88ffcd654fa4c4c Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:18 -0700
Subject: [PATCH 3736/4878] UPSTREAM: kasan: docs: update usage section

Update the "Usage" section in KASAN documentation:

 - Add inline code snippet markers.

 - Reword the part about stack traces for clarity.

 - Other minor clean-ups.

Link: https://lkml.kernel.org/r/48427809cd4b8b5d6bc00926cbe87e2b5081df17.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 86e6f08dd28d6723a19b8a072b6db45cf6a9e4d3)
Bug: 217222520
Change-Id: Idf422ea4b97e8d01933e8115817144c0474cb3fa
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 703597a5c7708..092773adbaf19 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -41,22 +41,21 @@ and riscv architectures, and tag-based KASAN modes are supported only for arm64.
 Usage
 -----
 
-To enable KASAN configure kernel with::
+To enable KASAN, configure the kernel with::
 
-	  CONFIG_KASAN = y
+	  CONFIG_KASAN=y
 
-and choose between CONFIG_KASAN_GENERIC (to enable generic KASAN),
-CONFIG_KASAN_SW_TAGS (to enable software tag-based KASAN), and
-CONFIG_KASAN_HW_TAGS (to enable hardware tag-based KASAN).
+and choose between ``CONFIG_KASAN_GENERIC`` (to enable generic KASAN),
+``CONFIG_KASAN_SW_TAGS`` (to enable software tag-based KASAN), and
+``CONFIG_KASAN_HW_TAGS`` (to enable hardware tag-based KASAN).
 
-For software modes, you also need to choose between CONFIG_KASAN_OUTLINE and
-CONFIG_KASAN_INLINE. Outline and inline are compiler instrumentation types.
-The former produces smaller binary while the latter is 1.1 - 2 times faster.
+For software modes, also choose between ``CONFIG_KASAN_OUTLINE`` and
+``CONFIG_KASAN_INLINE``. Outline and inline are compiler instrumentation types.
+The former produces a smaller binary while the latter is 1.1-2 times faster.
 
-For better error reports that include stack traces, enable CONFIG_STACKTRACE.
-
-To augment reports with last allocation and freeing stack of the physical page,
-it is recommended to enable also CONFIG_PAGE_OWNER and boot with page_owner=on.
+To include alloc and free stack traces of affected slab objects into reports,
+enable ``CONFIG_STACKTRACE``. To include alloc and free stack traces of affected
+physical pages, enable ``CONFIG_PAGE_OWNER`` and boot with ``page_owner=on``.
 
 Error reports
 ~~~~~~~~~~~~~
-- 
GitLab


From e401e4f2fa7afc5ffe6c57ffdc5fa3ee506dbc35 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:21 -0700
Subject: [PATCH 3737/4878] UPSTREAM: kasan: docs: update error reports section

Update the "Error reports" section in KASAN documentation:

 - Mention that bug titles are best-effort.

 - Move and reword the part about auxiliary stacks from "Implementation
   details".

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/3531e8fe6972cf39d1954e3643237b19eb21227e.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 836f79a2660533c8302f1154168018d9d76458af)
Bug: 217222520
Change-Id: I45f7e9e7a7b5271834315bf9cac61b818f50c9da
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 46 +++++++++++++++++--------------
 1 file changed, 26 insertions(+), 20 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 092773adbaf19..3020ee3d7a639 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -60,7 +60,7 @@ physical pages, enable ``CONFIG_PAGE_OWNER`` and boot with ``page_owner=on``.
 Error reports
 ~~~~~~~~~~~~~
 
-A typical out-of-bounds access generic KASAN report looks like this::
+A typical KASAN report looks like this::
 
     ==================================================================
     BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0xa8/0xbc [test_kasan]
@@ -133,33 +133,43 @@ A typical out-of-bounds access generic KASAN report looks like this::
      ffff8801f44ec400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
     ==================================================================
 
-The header of the report provides a short summary of what kind of bug happened
-and what kind of access caused it. It's followed by a stack trace of the bad
-access, a stack trace of where the accessed memory was allocated (in case bad
-access happens on a slab object), and a stack trace of where the object was
-freed (in case of a use-after-free bug report). Next comes a description of
-the accessed slab object and information about the accessed memory page.
+The report header summarizes what kind of bug happened and what kind of access
+caused it. It is followed by a stack trace of the bad access, a stack trace of
+where the accessed memory was allocated (in case a slab object was accessed),
+and a stack trace of where the object was freed (in case of a use-after-free
+bug report). Next comes a description of the accessed slab object and the
+information about the accessed memory page.
 
-In the last section the report shows memory state around the accessed address.
-Internally KASAN tracks memory state separately for each memory granule, which
+In the end, the report shows the memory state around the accessed address.
+Internally, KASAN tracks memory state separately for each memory granule, which
 is either 8 or 16 aligned bytes depending on KASAN mode. Each number in the
 memory state section of the report shows the state of one of the memory
 granules that surround the accessed address.
 
-For generic KASAN the size of each memory granule is 8. The state of each
+For generic KASAN, the size of each memory granule is 8. The state of each
 granule is encoded in one shadow byte. Those 8 bytes can be accessible,
-partially accessible, freed or be a part of a redzone. KASAN uses the following
-encoding for each shadow byte: 0 means that all 8 bytes of the corresponding
+partially accessible, freed, or be a part of a redzone. KASAN uses the following
+encoding for each shadow byte: 00 means that all 8 bytes of the corresponding
 memory region are accessible; number N (1 <= N <= 7) means that the first N
 bytes are accessible, and other (8 - N) bytes are not; any negative value
 indicates that the entire 8-byte word is inaccessible. KASAN uses different
 negative values to distinguish between different kinds of inaccessible memory
 like redzones or freed memory (see mm/kasan/kasan.h).
 
-In the report above the arrows point to the shadow byte 03, which means that
-the accessed address is partially accessible. For tag-based KASAN modes this
-last report section shows the memory tags around the accessed address
-(see the `Implementation details`_ section).
+In the report above, the arrow points to the shadow byte ``03``, which means
+that the accessed address is partially accessible.
+
+For tag-based KASAN modes, this last report section shows the memory tags around
+the accessed address (see the `Implementation details`_ section).
+
+Note that KASAN bug titles (like ``slab-out-of-bounds`` or ``use-after-free``)
+are best-effort: KASAN prints the most probable bug type based on the limited
+information it has. The actual type of the bug might be different.
+
+Generic KASAN also reports up to two auxiliary call stack traces. These stack
+traces point to places in code that interacted with the object but that are not
+directly present in the bad access stack trace. Currently, this includes
+call_rcu() and workqueue queuing.
 
 Boot parameters
 ~~~~~~~~~~~~~~~
@@ -223,10 +233,6 @@ function calls GCC directly inserts the code to check the shadow memory.
 This option significantly enlarges kernel but it gives x1.1-x2 performance
 boost over outline instrumented kernel.
 
-Generic KASAN also reports the last 2 call stacks to creation of work that
-potentially has access to an object. Call stacks for the following are shown:
-call_rcu() and workqueue queuing.
-
 Generic KASAN is the only mode that delays the reuse of freed object via
 quarantine (see mm/kasan/quarantine.c for implementation).
 
-- 
GitLab


From d762a54a2300e4f30c8daaa62904fb6a4c820270 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:24 -0700
Subject: [PATCH 3738/4878] UPSTREAM: kasan: docs: update boot parameters
 section

Update the "Boot parameters" section in KASAN documentation:

 - Mention panic_on_warn.

 - Mention kasan_multi_shot and its interaction with panic_on_warn.

 - Clarify kasan.fault=panic interaction with panic_on_warn.

 - A readability clean-up.

Link: https://lkml.kernel.org/r/01364952f15789948f0627d6733b5cdf5209f83a.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f359074768bf406b64d62560e88ff9820b600220)
Bug: 217222520
Change-Id: I77cb20a8316b740d458baa22b66b0a6851ea10e7
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 3020ee3d7a639..37af493c7f8e4 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -174,10 +174,16 @@ call_rcu() and workqueue queuing.
 Boot parameters
 ~~~~~~~~~~~~~~~
 
+KASAN is affected by the generic ``panic_on_warn`` command line parameter.
+When it is enabled, KASAN panics the kernel after printing a bug report.
+
+By default, KASAN prints a bug report only for the first invalid memory access.
+With ``kasan_multi_shot``, KASAN prints a report on every invalid access. This
+effectively disables ``panic_on_warn`` for KASAN reports.
+
 Hardware tag-based KASAN mode (see the section about various modes below) is
 intended for use in production as a security mitigation. Therefore, it supports
-boot parameters that allow to disable KASAN competely or otherwise control
-particular KASAN features.
+boot parameters that allow disabling KASAN or controlling its features.
 
 - ``kasan=off`` or ``=on`` controls whether KASAN is enabled (default: ``on``).
 
@@ -194,8 +200,8 @@ particular KASAN features.
   traces collection (default: ``on``).
 
 - ``kasan.fault=report`` or ``=panic`` controls whether to only print a KASAN
-  report or also panic the kernel (default: ``report``). Note, that tag
-  checking gets disabled after the first reported bug.
+  report or also panic the kernel (default: ``report``). The panic happens even
+  if ``kasan_multi_shot`` is enabled.
 
 Implementation details
 ----------------------
-- 
GitLab


From 651381fe25b24b60d5bcc9eb3e8eaa5994cc8e0a Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:27 -0700
Subject: [PATCH 3739/4878] UPSTREAM: kasan: docs: update GENERIC
 implementation details section

Update the "Implementation details" section for generic KASAN:

 - Don't mention kmemcheck, it's not present in the kernel anymore.

 - Don't mention GCC as the only supported compiler.

 - Update kasan_mem_to_shadow() definition to match actual code.

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/f2f35fdab701f8c709f63d328f98aec2982c8acc.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit b8191d7d57e86eda934ef82081c294e6a184b000)
Bug: 217222520
Change-Id: I254f7fddfa6c8a615ca943ee93d6b553d55321c3
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 37af493c7f8e4..027878f922915 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -209,12 +209,11 @@ Implementation details
 Generic KASAN
 ~~~~~~~~~~~~~
 
-From a high level perspective, KASAN's approach to memory error detection is
-similar to that of kmemcheck: use shadow memory to record whether each byte of
-memory is safe to access, and use compile-time instrumentation to insert checks
-of shadow memory on each memory access.
+Software KASAN modes use shadow memory to record whether each byte of memory is
+safe to access and use compile-time instrumentation to insert shadow memory
+checks before each memory access.
 
-Generic KASAN dedicates 1/8th of kernel memory to its shadow memory (e.g. 16TB
+Generic KASAN dedicates 1/8th of kernel memory to its shadow memory (16TB
 to cover 128TB on x86_64) and uses direct mapping with a scale and offset to
 translate a memory address to its corresponding shadow address.
 
@@ -223,23 +222,23 @@ address::
 
     static inline void *kasan_mem_to_shadow(const void *addr)
     {
-	return ((unsigned long)addr >> KASAN_SHADOW_SCALE_SHIFT)
+	return (void *)((unsigned long)addr >> KASAN_SHADOW_SCALE_SHIFT)
 		+ KASAN_SHADOW_OFFSET;
     }
 
 where ``KASAN_SHADOW_SCALE_SHIFT = 3``.
 
 Compile-time instrumentation is used to insert memory access checks. Compiler
-inserts function calls (__asan_load*(addr), __asan_store*(addr)) before each
-memory access of size 1, 2, 4, 8 or 16. These functions check whether memory
-access is valid or not by checking corresponding shadow memory.
+inserts function calls (``__asan_load*(addr)``, ``__asan_store*(addr)``) before
+each memory access of size 1, 2, 4, 8, or 16. These functions check whether
+memory accesses are valid or not by checking corresponding shadow memory.
 
-GCC 5.0 has possibility to perform inline instrumentation. Instead of making
-function calls GCC directly inserts the code to check the shadow memory.
-This option significantly enlarges kernel but it gives x1.1-x2 performance
-boost over outline instrumented kernel.
+With inline instrumentation, instead of making function calls, the compiler
+directly inserts the code to check shadow memory. This option significantly
+enlarges the kernel, but it gives an x1.1-x2 performance boost over the
+outline-instrumented kernel.
 
-Generic KASAN is the only mode that delays the reuse of freed object via
+Generic KASAN is the only mode that delays the reuse of freed objects via
 quarantine (see mm/kasan/quarantine.c for implementation).
 
 Software tag-based KASAN
-- 
GitLab


From e9e464bf79c1ed273e25879eee0bf8737c2a5ae2 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:30 -0700
Subject: [PATCH 3740/4878] UPSTREAM: kasan: docs: update SW_TAGS
 implementation details section

Update the "Implementation details" section for SW_TAGS KASAN:

 - Clarify the introduction sentence.

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/69b9b2e49d8cf789358fa24558be3fc0ce4ee32c.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit a6c18d4e763873e900b8932211a3f66589f943a2)
Bug: 217222520
Change-Id: I9e60452c46672c8fdf1842138a8c0460c79493a9
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 39 +++++++++++++++----------------
 1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 027878f922915..69f384b0c2d3b 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -244,38 +244,37 @@ quarantine (see mm/kasan/quarantine.c for implementation).
 Software tag-based KASAN
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
-Software tag-based KASAN requires software memory tagging support in the form
-of HWASan-like compiler instrumentation (see HWASan documentation for details).
-
-Software tag-based KASAN is currently only implemented for arm64 architecture.
+Software tag-based KASAN uses a software memory tagging approach to checking
+access validity. It is currently only implemented for the arm64 architecture.
 
 Software tag-based KASAN uses the Top Byte Ignore (TBI) feature of arm64 CPUs
-to store a pointer tag in the top byte of kernel pointers. Like generic KASAN
-it uses shadow memory to store memory tags associated with each 16-byte memory
-cell (therefore it dedicates 1/16th of the kernel memory for shadow memory).
+to store a pointer tag in the top byte of kernel pointers. It uses shadow memory
+to store memory tags associated with each 16-byte memory cell (therefore, it
+dedicates 1/16th of the kernel memory for shadow memory).
 
-On each memory allocation software tag-based KASAN generates a random tag, tags
-the allocated memory with this tag, and embeds this tag into the returned
+On each memory allocation, software tag-based KASAN generates a random tag, tags
+the allocated memory with this tag, and embeds the same tag into the returned
 pointer.
 
 Software tag-based KASAN uses compile-time instrumentation to insert checks
-before each memory access. These checks make sure that tag of the memory that
-is being accessed is equal to tag of the pointer that is used to access this
-memory. In case of a tag mismatch software tag-based KASAN prints a bug report.
+before each memory access. These checks make sure that the tag of the memory
+that is being accessed is equal to the tag of the pointer that is used to access
+this memory. In case of a tag mismatch, software tag-based KASAN prints a bug
+report.
 
-Software tag-based KASAN also has two instrumentation modes (outline, that
-emits callbacks to check memory accesses; and inline, that performs the shadow
+Software tag-based KASAN also has two instrumentation modes (outline, which
+emits callbacks to check memory accesses; and inline, which performs the shadow
 memory checks inline). With outline instrumentation mode, a bug report is
-simply printed from the function that performs the access check. With inline
-instrumentation a brk instruction is emitted by the compiler, and a dedicated
-brk handler is used to print bug reports.
+printed from the function that performs the access check. With inline
+instrumentation, a ``brk`` instruction is emitted by the compiler, and a
+dedicated ``brk`` handler is used to print bug reports.
 
 Software tag-based KASAN uses 0xFF as a match-all pointer tag (accesses through
-pointers with 0xFF pointer tag aren't checked). The value 0xFE is currently
+pointers with the 0xFF pointer tag are not checked). The value 0xFE is currently
 reserved to tag freed memory regions.
 
-Software tag-based KASAN currently only supports tagging of
-kmem_cache_alloc/kmalloc and page_alloc memory.
+Software tag-based KASAN currently only supports tagging of slab and page_alloc
+memory.
 
 Hardware tag-based KASAN
 ~~~~~~~~~~~~~~~~~~~~~~~~
-- 
GitLab


From 5759cca9cea7ac3147c255e2c4d214fc23ca750a Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:33 -0700
Subject: [PATCH 3741/4878] UPSTREAM: kasan: docs: update HW_TAGS
 implementation details section

Update the "Implementation details" section for HW_TAGS KASAN:

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/ee2caf4c138cc1fd239822c2abefd5af6c057744.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit bb48675e5aa4f48f5767fb915c73f44f86a81e98)
Bug: 217222520
Change-Id: I0d8c7a9e319b4ebc004356598311cd82c121570f
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 69f384b0c2d3b..f0dd0eaa9cde5 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -279,35 +279,35 @@ memory.
 Hardware tag-based KASAN
 ~~~~~~~~~~~~~~~~~~~~~~~~
 
-Hardware tag-based KASAN is similar to the software mode in concept, but uses
+Hardware tag-based KASAN is similar to the software mode in concept but uses
 hardware memory tagging support instead of compiler instrumentation and
 shadow memory.
 
 Hardware tag-based KASAN is currently only implemented for arm64 architecture
 and based on both arm64 Memory Tagging Extension (MTE) introduced in ARMv8.5
-Instruction Set Architecture, and Top Byte Ignore (TBI).
+Instruction Set Architecture and Top Byte Ignore (TBI).
 
 Special arm64 instructions are used to assign memory tags for each allocation.
 Same tags are assigned to pointers to those allocations. On every memory
-access, hardware makes sure that tag of the memory that is being accessed is
-equal to tag of the pointer that is used to access this memory. In case of a
-tag mismatch a fault is generated and a report is printed.
+access, hardware makes sure that the tag of the memory that is being accessed is
+equal to the tag of the pointer that is used to access this memory. In case of a
+tag mismatch, a fault is generated, and a report is printed.
 
 Hardware tag-based KASAN uses 0xFF as a match-all pointer tag (accesses through
-pointers with 0xFF pointer tag aren't checked). The value 0xFE is currently
+pointers with the 0xFF pointer tag are not checked). The value 0xFE is currently
 reserved to tag freed memory regions.
 
-Hardware tag-based KASAN currently only supports tagging of
-kmem_cache_alloc/kmalloc and page_alloc memory.
+Hardware tag-based KASAN currently only supports tagging of slab and page_alloc
+memory.
 
-If the hardware doesn't support MTE (pre ARMv8.5), hardware tag-based KASAN
-won't be enabled. In this case all boot parameters are ignored.
+If the hardware does not support MTE (pre ARMv8.5), hardware tag-based KASAN
+will not be enabled. In this case, all KASAN boot parameters are ignored.
 
-Note, that enabling CONFIG_KASAN_HW_TAGS always results in in-kernel TBI being
-enabled. Even when kasan.mode=off is provided, or when the hardware doesn't
+Note that enabling CONFIG_KASAN_HW_TAGS always results in in-kernel TBI being
+enabled. Even when ``kasan.mode=off`` is provided or when the hardware does not
 support MTE (but supports TBI).
 
-Hardware tag-based KASAN only reports the first found bug. After that MTE tag
+Hardware tag-based KASAN only reports the first found bug. After that, MTE tag
 checking gets disabled.
 
 Shadow memory
-- 
GitLab


From 558cf9358abe93a9d584d98ab3ad97ddd9130a9e Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:36 -0700
Subject: [PATCH 3742/4878] UPSTREAM: kasan: docs: update shadow memory section

Update the "Shadow memory" section in KASAN documentation:

 - Rearrange the introduction paragraph do it doesn't give a
   "KASAN has an issue" impression.

 - Update the list of architectures with vmalloc support.

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/00f8c38b0fd5290a3f4dced04eaba41383e67e14.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 67ca1c0b74463a7b961bb34c213b37be0deb0ab6)
Bug: 217222520
Change-Id: Iceb2706e36a4873f574803722c09cdb0f2395fac
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index f0dd0eaa9cde5..894fc8eb374d1 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -313,14 +313,11 @@ checking gets disabled.
 Shadow memory
 -------------
 
-The kernel maps memory in a number of different parts of the address
-space. This poses something of a problem for KASAN, which requires
-that all addresses accessed by instrumented code have a valid shadow
-region.
-
-The range of kernel virtual addresses is large: there is not enough
-real memory to support a real shadow region for every address that
-could be accessed by the kernel.
+The kernel maps memory in several different parts of the address space.
+The range of kernel virtual addresses is large: there is not enough real
+memory to support a real shadow region for every address that could be
+accessed by the kernel. Therefore, KASAN only maps real shadow for certain
+parts of the address space.
 
 Default behaviour
 ~~~~~~~~~~~~~~~~~
@@ -332,10 +329,9 @@ page is mapped over the shadow area. This read-only shadow page
 declares all memory accesses as permitted.
 
 This presents a problem for modules: they do not live in the linear
-mapping, but in a dedicated module space. By hooking in to the module
-allocator, KASAN can temporarily map real shadow memory to cover
-them. This allows detection of invalid accesses to module globals, for
-example.
+mapping but in a dedicated module space. By hooking into the module
+allocator, KASAN temporarily maps real shadow memory to cover them.
+This allows detection of invalid accesses to module globals, for example.
 
 This also creates an incompatibility with ``VMAP_STACK``: if the stack
 lives in vmalloc space, it will be shadowed by the read-only page, and
@@ -346,9 +342,10 @@ CONFIG_KASAN_VMALLOC
 ~~~~~~~~~~~~~~~~~~~~
 
 With ``CONFIG_KASAN_VMALLOC``, KASAN can cover vmalloc space at the
-cost of greater memory usage. Currently this is only supported on x86.
+cost of greater memory usage. Currently, this is supported on x86,
+riscv, s390, and powerpc.
 
-This works by hooking into vmalloc and vmap, and dynamically
+This works by hooking into vmalloc and vmap and dynamically
 allocating real shadow memory to back the mappings.
 
 Most mappings in vmalloc space are small, requiring less than a full
@@ -367,10 +364,10 @@ memory.
 
 To avoid the difficulties around swapping mappings around, KASAN expects
 that the part of the shadow region that covers the vmalloc space will
-not be covered by the early shadow page, but will be left
-unmapped. This will require changes in arch-specific code.
+not be covered by the early shadow page but will be left unmapped.
+This will require changes in arch-specific code.
 
-This allows ``VMAP_STACK`` support on x86, and can simplify support of
+This allows ``VMAP_STACK`` support on x86 and can simplify support of
 architectures that do not have a fixed module region.
 
 For developers
-- 
GitLab


From bd5b44a8acee14528b77c5697e269159ccad28f2 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:39 -0700
Subject: [PATCH 3743/4878] UPSTREAM: kasan: docs: update ignoring accesses
 section

Update the "Ignoring accesses" section in KASAN documentation:

 - Mention __no_sanitize_address/noinstr.

 - Mention kasan_disable/enable_current().

 - Mention kasan_reset_tag()/page_kasan_tag_reset().

 - Readability and punctuation clean-ups.

Link: https://lkml.kernel.org/r/4531ba5f3eca61f6aade863c136778cc8c807a64.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit fe547fca0c10b0319881287ca17ca9d7dc1b4757)
Bug: 217222520
Change-Id: Id2e6e54d7c00f447b39c934cb7cae3f78afb8fde
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 34 +++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 894fc8eb374d1..0d2cb74ee05d0 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -377,12 +377,18 @@ Ignoring accesses
 ~~~~~~~~~~~~~~~~~
 
 Software KASAN modes use compiler instrumentation to insert validity checks.
-Such instrumentation might be incompatible with some part of the kernel, and
-therefore needs to be disabled. To disable instrumentation for specific files
-or directories, add a line similar to the following to the respective kernel
+Such instrumentation might be incompatible with some parts of the kernel, and
+therefore needs to be disabled.
+
+Other parts of the kernel might access metadata for allocated objects.
+Normally, KASAN detects and reports such accesses, but in some cases (e.g.,
+in memory allocators), these accesses are valid.
+
+For software KASAN modes, to disable instrumentation for a specific file or
+directory, add a ``KASAN_SANITIZE`` annotation to the respective kernel
 Makefile:
 
-- For a single file (e.g. main.o)::
+- For a single file (e.g., main.o)::
 
     KASAN_SANITIZE_main.o := n
 
@@ -390,6 +396,26 @@ Makefile:
 
     KASAN_SANITIZE := n
 
+For software KASAN modes, to disable instrumentation on a per-function basis,
+use the KASAN-specific ``__no_sanitize_address`` function attribute or the
+generic ``noinstr`` one.
+
+Note that disabling compiler instrumentation (either on a per-file or a
+per-function basis) makes KASAN ignore the accesses that happen directly in
+that code for software KASAN modes. It does not help when the accesses happen
+indirectly (through calls to instrumented functions) or with the hardware
+tag-based mode that does not use compiler instrumentation.
+
+For software KASAN modes, to disable KASAN reports in a part of the kernel code
+for the current task, annotate this part of the code with a
+``kasan_disable_current()``/``kasan_enable_current()`` section. This also
+disables the reports for indirect accesses that happen through function calls.
+
+For tag-based KASAN modes (include the hardware one), to disable access
+checking, use ``kasan_reset_tag()`` or ``page_kasan_tag_reset()``. Note that
+temporarily disabling access checking via ``page_kasan_tag_reset()`` requires
+saving and restoring the per-page KASAN tag via
+``page_kasan_tag``/``page_kasan_tag_set``.
 
 Tests
 ~~~~~
-- 
GitLab


From a64b66633122b65b1e913cf3126a62026a6bb096 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:42 -0700
Subject: [PATCH 3744/4878] UPSTREAM: kasan: docs: update tests section

Update the "Tests" section in KASAN documentation:

 - Add an introductory sentence.

 - Add proper indentation for the list of ways to run KUnit tests.

 - Punctuation, readability, and other minor clean-ups.

Link: https://lkml.kernel.org/r/fb08845e25c8847ffda271fa19cda2621c04a65b.1615559068.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit fc23c074ef5ab47c2fb0975f70329da93850c6d0)
Bug: 217222520
Change-Id: Ie3f6bc35f253f844458cb3f87cee2ab13a4d54af
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 32 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 17 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 0d2cb74ee05d0..d3f335ffc7517 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -420,19 +420,20 @@ saving and restoring the per-page KASAN tag via
 Tests
 ~~~~~
 
-KASAN tests consist of two parts:
+There are KASAN tests that allow verifying that KASAN works and can detect
+certain types of memory corruptions. The tests consist of two parts:
 
 1. Tests that are integrated with the KUnit Test Framework. Enabled with
 ``CONFIG_KASAN_KUNIT_TEST``. These tests can be run and partially verified
-automatically in a few different ways, see the instructions below.
+automatically in a few different ways; see the instructions below.
 
 2. Tests that are currently incompatible with KUnit. Enabled with
 ``CONFIG_KASAN_MODULE_TEST`` and can only be run as a module. These tests can
-only be verified manually, by loading the kernel module and inspecting the
+only be verified manually by loading the kernel module and inspecting the
 kernel log for KASAN reports.
 
-Each KUnit-compatible KASAN test prints a KASAN report if an error is detected.
-Then the test prints its number and status.
+Each KUnit-compatible KASAN test prints one of multiple KASAN reports if an
+error is detected. Then the test prints its number and status.
 
 When a test passes::
 
@@ -460,27 +461,24 @@ Or, if one of the tests failed::
 
         not ok 1 - kasan
 
-
 There are a few ways to run KUnit-compatible KASAN tests.
 
 1. Loadable module
 
-With ``CONFIG_KUNIT`` enabled, ``CONFIG_KASAN_KUNIT_TEST`` can be built as
-a loadable module and run on any architecture that supports KASAN by loading
-the module with insmod or modprobe. The module is called ``test_kasan``.
+   With ``CONFIG_KUNIT`` enabled, KASAN-KUnit tests can be built as a loadable
+   module and run by loading ``test_kasan.ko`` with ``insmod`` or ``modprobe``.
 
 2. Built-In
 
-With ``CONFIG_KUNIT`` built-in, ``CONFIG_KASAN_KUNIT_TEST`` can be built-in
-on any architecure that supports KASAN. These and any other KUnit tests enabled
-will run and print the results at boot as a late-init call.
+   With ``CONFIG_KUNIT`` built-in, KASAN-KUnit tests can be built-in as well.
+   In this case, the tests will run at boot as a late-init call.
 
 3. Using kunit_tool
 
-With ``CONFIG_KUNIT`` and ``CONFIG_KASAN_KUNIT_TEST`` built-in, it's also
-possible use ``kunit_tool`` to see the results of these and other KUnit tests
-in a more readable way. This will not print the KASAN reports of the tests that
-passed. Use `KUnit documentation <https://www.kernel.org/doc/html/latest/dev-tools/kunit/index.html>`_
-for more up-to-date information on ``kunit_tool``.
+   With ``CONFIG_KUNIT`` and ``CONFIG_KASAN_KUNIT_TEST`` built-in, it is also
+   possible to use ``kunit_tool`` to see the results of KUnit tests in a more
+   readable way. This will not print the KASAN reports of the tests that passed.
+   See `KUnit documentation <https://www.kernel.org/doc/html/latest/dev-tools/kunit/index.html>`_
+   for more up-to-date information on ``kunit_tool``.
 
 .. _KUnit: https://www.kernel.org/doc/html/latest/dev-tools/kunit/index.html
-- 
GitLab


From 52abeae3a6573ea5419b4e46d4d6a3dfa572977d Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 29 Apr 2021 23:00:49 -0700
Subject: [PATCH 3745/4878] UPSTREAM: kasan: detect false-positives in tests

Currently, KASAN-KUnit tests can check that a particular annotated part of
code causes a KASAN report.  However, they do not check that no unwanted
reports happen between the annotated parts.

This patch implements these checks.

It is done by setting report_data.report_found to false in
kasan_test_init() and at the end of KUNIT_EXPECT_KASAN_FAIL() and then
checking that it remains false at the beginning of
KUNIT_EXPECT_KASAN_FAIL() and in kasan_test_exit().

kunit_add_named_resource() call is moved to kasan_test_init(), and the
value of fail_data.report_expected is kept as false in between
KUNIT_EXPECT_KASAN_FAIL() annotations for consistency.

Link: https://lkml.kernel.org/r/48079c52cc329fbc52f4386996598d58022fb872.1617207873.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 99734b535d9bf8d5826be8f8f3719dfc586c3452)
Bug: 217222520
Change-Id: Iab56aebdd2da67dd90de23382e88aa9a815e963b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 55 +++++++++++++++++++++++++-----------------------
 1 file changed, 29 insertions(+), 26 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 87170a68f7e76..cacbbbdef768d 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -54,6 +54,10 @@ static int kasan_test_init(struct kunit *test)
 
 	multishot = kasan_save_enable_multi_shot();
 	kasan_set_tagging_report_once(false);
+	fail_data.report_found = false;
+	fail_data.report_expected = false;
+	kunit_add_named_resource(test, NULL, NULL, &resource,
+					"kasan_data", &fail_data);
 	return 0;
 }
 
@@ -61,6 +65,7 @@ static void kasan_test_exit(struct kunit *test)
 {
 	kasan_set_tagging_report_once(true);
 	kasan_restore_multi_shot(multishot);
+	KUNIT_EXPECT_FALSE(test, fail_data.report_found);
 }
 
 /**
@@ -78,33 +83,31 @@ static void kasan_test_exit(struct kunit *test)
  * fields, it can reorder or optimize away the accesses to those fields.
  * Use READ/WRITE_ONCE() for the accesses and compiler barriers around the
  * expression to prevent that.
+ *
+ * In between KUNIT_EXPECT_KASAN_FAIL checks, fail_data.report_found is kept as
+ * false. This allows detecting KASAN reports that happen outside of the checks
+ * by asserting !fail_data.report_found at the start of KUNIT_EXPECT_KASAN_FAIL
+ * and in kasan_test_exit.
  */
-#define KUNIT_EXPECT_KASAN_FAIL(test, expression) do {		\
-	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS) &&			\
-	    !kasan_async_mode_enabled())			\
-		migrate_disable();				\
-	WRITE_ONCE(fail_data.report_expected, true);		\
-	WRITE_ONCE(fail_data.report_found, false);		\
-	kunit_add_named_resource(test,				\
-				NULL,				\
-				NULL,				\
-				&resource,			\
-				"kasan_data", &fail_data);	\
-	barrier();						\
-	expression;						\
-	barrier();						\
-	if (kasan_async_mode_enabled())				\
-		kasan_force_async_fault();			\
-	barrier();						\
-	KUNIT_EXPECT_EQ(test,					\
-			READ_ONCE(fail_data.report_expected),	\
-			READ_ONCE(fail_data.report_found));	\
-	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS) &&			\
-	    !kasan_async_mode_enabled()) {			\
-		if (READ_ONCE(fail_data.report_found))		\
-			kasan_enable_tagging_sync();		\
-		migrate_enable();				\
-	}							\
+#define KUNIT_EXPECT_KASAN_FAIL(test, expression) do {			\
+	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS) &&				\
+	    !kasan_async_mode_enabled())				\
+		migrate_disable();					\
+	KUNIT_EXPECT_FALSE(test, READ_ONCE(fail_data.report_found));	\
+	WRITE_ONCE(fail_data.report_expected, true);			\
+	barrier();							\
+	expression;							\
+	barrier();							\
+	KUNIT_EXPECT_EQ(test,						\
+			READ_ONCE(fail_data.report_expected),		\
+			READ_ONCE(fail_data.report_found));		\
+	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS)) {				\
+		if (READ_ONCE(fail_data.report_found))			\
+			kasan_enable_tagging_sync();			\
+		migrate_enable();					\
+	}								\
+	WRITE_ONCE(fail_data.report_found, false);			\
+	WRITE_ONCE(fail_data.report_expected, false);			\
 } while (0)
 
 #define KASAN_TEST_NEEDS_CONFIG_ON(test, config) do {			\
-- 
GitLab


From d318412da9c603f39be2707260fbd158e2743411 Mon Sep 17 00:00:00 2001
From: Yu Kuai <yukuai3@huawei.com>
Date: Fri, 4 Jun 2021 20:01:33 -0700
Subject: [PATCH 3746/4878] UPSTREAM: mm/kasan/init.c: fix doc warning

Fix gcc W=1 warning:

  mm/kasan/init.c:228: warning: Function parameter or member 'shadow_start' not described in 'kasan_populate_early_shadow'
  mm/kasan/init.c:228: warning: Function parameter or member 'shadow_end' not described in 'kasan_populate_early_shadow'

Link: https://lkml.kernel.org/r/20210603140700.3045298-1-yukuai3@huawei.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7b6889f54a3c8c4139137a24a3ca12fe52a91dba)
Bug: 217222520
Change-Id: I8635e52dc32539abd0288c50221220e2aef0fadb
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/kasan/init.c b/mm/kasan/init.c
index c4605ac9837b0..348f31d15a971 100644
--- a/mm/kasan/init.c
+++ b/mm/kasan/init.c
@@ -220,8 +220,8 @@ static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr,
 /**
  * kasan_populate_early_shadow - populate shadow memory region with
  *                               kasan_early_shadow_page
- * @shadow_start - start of the memory range to populate
- * @shadow_end   - end of the memory range to populate
+ * @shadow_start: start of the memory range to populate
+ * @shadow_end: end of the memory range to populate
  */
 int __ref kasan_populate_early_shadow(const void *shadow_start,
 					const void *shadow_end)
-- 
GitLab


From e58d39cf21624a911a89ca021c4b0fb215962ee8 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Wed, 26 May 2021 10:49:25 -0700
Subject: [PATCH 3747/4878] BACKPORT: arm64: Change the on_*stack functions to
 take a size argument

(Backport: adjacent lines changed in unwind_frame.)

unwind_frame() was previously implicitly checking that the frame
record is in bounds of the stack by enforcing that FP is both aligned
to 16 and in bounds of the stack. Once the FP alignment requirement
is relaxed to 8 this will not be sufficient because it does not
account for the case where FP points to 8 bytes before the end of the
stack.

Make the check explicit by changing the on_*stack functions to take a
size argument and adjusting the callers to pass the appropriate sizes.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/Ib7a3eb3eea41b0687ffaba045ceb2012d077d8b4
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210526174927.2477847-1-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 76734d26b54192a31440039459eef2612da63ed4)
Bug: 217222520
Change-Id: If12fe98f33fa6a9ec9c0d544fc6caf0fb32c564b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/processor.h  | 12 +++++------
 arch/arm64/include/asm/sdei.h       |  7 ++++---
 arch/arm64/include/asm/stacktrace.h | 32 ++++++++++++++---------------
 arch/arm64/kernel/ptrace.c          |  2 +-
 arch/arm64/kernel/sdei.c            | 16 ++++++++-------
 arch/arm64/kernel/stacktrace.c      |  2 +-
 6 files changed, 37 insertions(+), 34 deletions(-)

diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index e85a712f1e3d4..c528fae6ea6b0 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -338,13 +338,13 @@ long get_tagged_addr_ctrl(struct task_struct *task);
  * of header definitions for the use of task_stack_page.
  */
 
-#define current_top_of_stack()							\
-({										\
-	struct stack_info _info;						\
-	BUG_ON(!on_accessible_stack(current, current_stack_pointer, &_info));	\
-	_info.high;								\
+#define current_top_of_stack()								\
+({											\
+	struct stack_info _info;							\
+	BUG_ON(!on_accessible_stack(current, current_stack_pointer, 1, &_info));	\
+	_info.high;									\
 })
-#define on_thread_stack()	(on_task_stack(current, current_stack_pointer, NULL))
+#define on_thread_stack()	(on_task_stack(current, current_stack_pointer, 1, NULL))
 
 #endif /* __ASSEMBLY__ */
 #endif /* __ASM_PROCESSOR_H */
diff --git a/arch/arm64/include/asm/sdei.h b/arch/arm64/include/asm/sdei.h
index 63e0b92a5fbb0..8bc30a5c45693 100644
--- a/arch/arm64/include/asm/sdei.h
+++ b/arch/arm64/include/asm/sdei.h
@@ -42,8 +42,9 @@ unsigned long sdei_arch_get_entry_point(int conduit);
 
 struct stack_info;
 
-bool _on_sdei_stack(unsigned long sp, struct stack_info *info);
-static inline bool on_sdei_stack(unsigned long sp,
+bool _on_sdei_stack(unsigned long sp, unsigned long size,
+		    struct stack_info *info);
+static inline bool on_sdei_stack(unsigned long sp, unsigned long size,
 				struct stack_info *info)
 {
 	if (!IS_ENABLED(CONFIG_VMAP_STACK))
@@ -51,7 +52,7 @@ static inline bool on_sdei_stack(unsigned long sp,
 	if (!IS_ENABLED(CONFIG_ARM_SDE_INTERFACE))
 		return false;
 	if (in_nmi())
-		return _on_sdei_stack(sp, info);
+		return _on_sdei_stack(sp, size, info);
 
 	return false;
 }
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h
index eb29b1fe8255e..77192df232bfa 100644
--- a/arch/arm64/include/asm/stacktrace.h
+++ b/arch/arm64/include/asm/stacktrace.h
@@ -69,14 +69,14 @@ extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,
 
 DECLARE_PER_CPU(unsigned long *, irq_stack_ptr);
 
-static inline bool on_stack(unsigned long sp, unsigned long low,
-				unsigned long high, enum stack_type type,
-				struct stack_info *info)
+static inline bool on_stack(unsigned long sp, unsigned long size,
+			    unsigned long low, unsigned long high,
+			    enum stack_type type, struct stack_info *info)
 {
 	if (!low)
 		return false;
 
-	if (sp < low || sp >= high)
+	if (sp < low || sp + size < sp || sp + size > high)
 		return false;
 
 	if (info) {
@@ -87,38 +87,38 @@ static inline bool on_stack(unsigned long sp, unsigned long low,
 	return true;
 }
 
-static inline bool on_irq_stack(unsigned long sp,
+static inline bool on_irq_stack(unsigned long sp, unsigned long size,
 				struct stack_info *info)
 {
 	unsigned long low = (unsigned long)raw_cpu_read(irq_stack_ptr);
 	unsigned long high = low + IRQ_STACK_SIZE;
 
-	return on_stack(sp, low, high, STACK_TYPE_IRQ, info);
+	return on_stack(sp, size, low, high, STACK_TYPE_IRQ, info);
 }
 
 static inline bool on_task_stack(const struct task_struct *tsk,
-				 unsigned long sp,
+				 unsigned long sp, unsigned long size,
 				 struct stack_info *info)
 {
 	unsigned long low = (unsigned long)task_stack_page(tsk);
 	unsigned long high = low + THREAD_SIZE;
 
-	return on_stack(sp, low, high, STACK_TYPE_TASK, info);
+	return on_stack(sp, size, low, high, STACK_TYPE_TASK, info);
 }
 
 #ifdef CONFIG_VMAP_STACK
 DECLARE_PER_CPU(unsigned long [OVERFLOW_STACK_SIZE/sizeof(long)], overflow_stack);
 
-static inline bool on_overflow_stack(unsigned long sp,
+static inline bool on_overflow_stack(unsigned long sp, unsigned long size,
 				struct stack_info *info)
 {
 	unsigned long low = (unsigned long)raw_cpu_ptr(overflow_stack);
 	unsigned long high = low + OVERFLOW_STACK_SIZE;
 
-	return on_stack(sp, low, high, STACK_TYPE_OVERFLOW, info);
+	return on_stack(sp, size, low, high, STACK_TYPE_OVERFLOW, info);
 }
 #else
-static inline bool on_overflow_stack(unsigned long sp,
+static inline bool on_overflow_stack(unsigned long sp, unsigned long size,
 			struct stack_info *info) { return false; }
 #endif
 
@@ -128,21 +128,21 @@ static inline bool on_overflow_stack(unsigned long sp,
  * context.
  */
 static inline bool on_accessible_stack(const struct task_struct *tsk,
-				       unsigned long sp,
+				       unsigned long sp, unsigned long size,
 				       struct stack_info *info)
 {
 	if (info)
 		info->type = STACK_TYPE_UNKNOWN;
 
-	if (on_task_stack(tsk, sp, info))
+	if (on_task_stack(tsk, sp, size, info))
 		return true;
 	if (tsk != current || preemptible())
 		return false;
-	if (on_irq_stack(sp, info))
+	if (on_irq_stack(sp, size, info))
 		return true;
-	if (on_overflow_stack(sp, info))
+	if (on_overflow_stack(sp, size, info))
 		return true;
-	if (on_sdei_stack(sp, info))
+	if (on_sdei_stack(sp, size, info))
 		return true;
 
 	return false;
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index bbb94747bfeea..d59d8aa44863e 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -122,7 +122,7 @@ static bool regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr)
 {
 	return ((addr & ~(THREAD_SIZE - 1))  ==
 		(kernel_stack_pointer(regs) & ~(THREAD_SIZE - 1))) ||
-		on_irq_stack(addr, NULL);
+		on_irq_stack(addr, sizeof(unsigned long), NULL);
 }
 
 /**
diff --git a/arch/arm64/kernel/sdei.c b/arch/arm64/kernel/sdei.c
index 3f129b40d0db9..618a480a90d07 100644
--- a/arch/arm64/kernel/sdei.c
+++ b/arch/arm64/kernel/sdei.c
@@ -162,31 +162,33 @@ static int init_sdei_scs(void)
 	return err;
 }
 
-static bool on_sdei_normal_stack(unsigned long sp, struct stack_info *info)
+static bool on_sdei_normal_stack(unsigned long sp, unsigned long size,
+				 struct stack_info *info)
 {
 	unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr);
 	unsigned long high = low + SDEI_STACK_SIZE;
 
-	return on_stack(sp, low, high, STACK_TYPE_SDEI_NORMAL, info);
+	return on_stack(sp, size, low, high, STACK_TYPE_SDEI_NORMAL, info);
 }
 
-static bool on_sdei_critical_stack(unsigned long sp, struct stack_info *info)
+static bool on_sdei_critical_stack(unsigned long sp, unsigned long size,
+				   struct stack_info *info)
 {
 	unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_critical_ptr);
 	unsigned long high = low + SDEI_STACK_SIZE;
 
-	return on_stack(sp, low, high, STACK_TYPE_SDEI_CRITICAL, info);
+	return on_stack(sp, size, low, high, STACK_TYPE_SDEI_CRITICAL, info);
 }
 
-bool _on_sdei_stack(unsigned long sp, struct stack_info *info)
+bool _on_sdei_stack(unsigned long sp, unsigned long size, struct stack_info *info)
 {
 	if (!IS_ENABLED(CONFIG_VMAP_STACK))
 		return false;
 
-	if (on_sdei_critical_stack(sp, info))
+	if (on_sdei_critical_stack(sp, size, info))
 		return true;
 
-	if (on_sdei_normal_stack(sp, info))
+	if (on_sdei_normal_stack(sp, size, info))
 		return true;
 
 	return false;
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index a3367829b154f..e9edde41dc267 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -50,7 +50,7 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 	if (!tsk)
 		tsk = current;
 
-	if (!on_accessible_stack(tsk, fp, &info))
+	if (!on_accessible_stack(tsk, fp, 16, &info))
 		return -EINVAL;
 
 	if (test_bit(info.type, frame->stacks_done))
-- 
GitLab


From a0d443a046cb395ed81af5eb275525b2ba5e3f47 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Wed, 26 May 2021 10:49:26 -0700
Subject: [PATCH 3748/4878] BACKPORT: arm64: stacktrace: Relax frame record
 alignment requirement to 8 bytes

(Backport: adjacent lines changed in unwind_frame.)

The AAPCS places no requirements on the alignment of the frame
record. In theory it could be placed anywhere, although it seems
sensible to require it to be aligned to 8 bytes. With an upcoming
enhancement to tag-based KASAN Clang will begin creating frame records
located at an address that is only aligned to 8 bytes. Accommodate
such frame records in the stack unwinding code.

As pointed out by Mark Rutland, the userspace stack unwinding code
has the same problem, so fix it there as well.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/Ia22c375230e67ca055e9e4bb639383567f7ad268
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210526174927.2477847-2-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 33c222aeda14596ca5b9a1a3002858c6c3565ddd)
Bug: 217222520
Change-Id: I146550ad69a020333202c67a6486cd18630dd6db
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/perf_callchain.c | 2 +-
 arch/arm64/kernel/stacktrace.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/perf_callchain.c b/arch/arm64/kernel/perf_callchain.c
index 58ae55d78a203..86d9f20131723 100644
--- a/arch/arm64/kernel/perf_callchain.c
+++ b/arch/arm64/kernel/perf_callchain.c
@@ -118,7 +118,7 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 		tail = (struct frame_tail __user *)regs->regs[29];
 
 		while (entry->nr < entry->max_stack &&
-		       tail && !((unsigned long)tail & 0xf))
+		       tail && !((unsigned long)tail & 0x7))
 			tail = user_backtrace(tail, entry);
 	} else {
 #ifdef CONFIG_COMPAT
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index e9edde41dc267..954cd44be81c5 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -44,7 +44,7 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame)
 	unsigned long fp = frame->fp;
 	struct stack_info info;
 
-	if (fp & 0xf)
+	if (fp & 0x7)
 		return -EINVAL;
 
 	if (!tsk)
-- 
GitLab


From ce21379c4441e8c705785180f74b8686fe98b496 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Wed, 26 May 2021 10:49:27 -0700
Subject: [PATCH 3749/4878] UPSTREAM: kasan: arm64: support specialized
 outlined tag mismatch checks

By using outlined checks we can achieve a significant code size
improvement by moving the tag-based ASAN checks into separate
functions. Unlike the existing CONFIG_KASAN_OUTLINE mode these
functions have a custom calling convention that preserves most
registers and is specialized to the register containing the address
and the type of access, and as a result we can eliminate the code
size and performance overhead of a standard calling convention such
as AAPCS for these functions.

This change depends on a separate series of changes to Clang [1] to
support outlined checks in the kernel, although the change works fine
without them (we just don't get outlined checks). This is because the
flag -mllvm -hwasan-inline-all-checks=0 has no effect until the Clang
changes land. The flag was introduced in the Clang 9.0 timeframe as
part of the support for outlined checks in userspace and because our
minimum Clang version is 10.0 we can pass it unconditionally.

Outlined checks require a new runtime function with a custom calling
convention. Add this function to arch/arm64/lib.

I measured the code size of defconfig + tag-based KASAN, as well
as boot time (i.e. time to init launch) on a DragonBoard 845c with
an Android arm64 GKI kernel. The results are below:

                               code size    boot time
CONFIG_KASAN_INLINE=y before    92824064      6.18s
CONFIG_KASAN_INLINE=y after     38822400      6.65s
CONFIG_KASAN_OUTLINE=y          39215616     11.48s

We can see straight away that specialized outlined checks beat the
existing CONFIG_KASAN_OUTLINE=y on both code size and boot time
for tag-based ASAN.

As for the comparison between CONFIG_KASAN_INLINE=y before and after
we saw similar performance numbers in userspace [2] and decided
that since the performance overhead is minimal compared to the
overhead of tag-based ASAN itself as well as compared to the code
size improvements we would just replace the inlined checks with the
specialized outlined checks without the option to select between them,
and that is what I have implemented in this patch.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://linux-review.googlesource.com/id/I1a30036c70ab3c3ee78d75ed9b87ef7cdc3fdb76
Link: [1] https://reviews.llvm.org/D90426
Link: [2] https://reviews.llvm.org/D56954
Link: https://lore.kernel.org/r/20210526174927.2477847-3-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 1cbdf60bd1b74e397d48aa877367cfc621f45ffe)
Bug: 217222520
Change-Id: Ica051b2091bc23480888508e2677703dc6fab265
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/asm-prototypes.h |  6 ++
 arch/arm64/include/asm/module.lds.h     | 17 +++++-
 arch/arm64/lib/Makefile                 |  2 +
 arch/arm64/lib/kasan_sw_tags.S          | 76 +++++++++++++++++++++++++
 mm/kasan/sw_tags.c                      |  7 +++
 scripts/Makefile.kasan                  |  1 +
 6 files changed, 107 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm64/lib/kasan_sw_tags.S

diff --git a/arch/arm64/include/asm/asm-prototypes.h b/arch/arm64/include/asm/asm-prototypes.h
index 1c9a3a0c5fa5f..ec1d9655f8850 100644
--- a/arch/arm64/include/asm/asm-prototypes.h
+++ b/arch/arm64/include/asm/asm-prototypes.h
@@ -23,4 +23,10 @@ long long __ashlti3(long long a, int b);
 long long __ashrti3(long long a, int b);
 long long __lshrti3(long long a, int b);
 
+/*
+ * This function uses a custom calling convention and cannot be called from C so
+ * this prototype is not entirely accurate.
+ */
+void __hwasan_tag_mismatch(unsigned long addr, unsigned long access_info);
+
 #endif /* __ASM_PROTOTYPES_H */
diff --git a/arch/arm64/include/asm/module.lds.h b/arch/arm64/include/asm/module.lds.h
index 0b736bff0bdf1..bbbd234845dae 100644
--- a/arch/arm64/include/asm/module.lds.h
+++ b/arch/arm64/include/asm/module.lds.h
@@ -1,5 +1,5 @@
-#ifdef CONFIG_ARM64_MODULE_PLTS
 SECTIONS {
+#ifdef CONFIG_ARM64_MODULE_PLTS
 	.plt 0 (NOLOAD) : { BYTE(0) }
 	.init.plt 0 (NOLOAD) : { BYTE(0) }
 	.text.ftrace_trampoline 0 (NOLOAD) : { BYTE(0) }
@@ -32,5 +32,18 @@ SECTIONS {
 		*(.initcalls._end)
 	}
 #endif
-}
 #endif
+
+#ifdef CONFIG_KASAN_SW_TAGS
+	/*
+	 * Outlined checks go into comdat-deduplicated sections named .text.hot.
+	 * Because they are in comdats they are not combined by the linker and
+	 * we otherwise end up with multiple sections with the same .text.hot
+	 * name in the .ko file. The kernel module loader warns if it sees
+	 * multiple sections with the same name so we use this sections
+	 * directive to force them into a single section and silence the
+	 * warning.
+	 */
+	.text.hot : { *(.text.hot) }
+#endif
+}
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile
index d31e1169d9b8e..8e60d76a1b473 100644
--- a/arch/arm64/lib/Makefile
+++ b/arch/arm64/lib/Makefile
@@ -18,3 +18,5 @@ obj-$(CONFIG_CRC32) += crc32.o
 obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
 
 obj-$(CONFIG_ARM64_MTE) += mte.o
+
+obj-$(CONFIG_KASAN_SW_TAGS) += kasan_sw_tags.o
diff --git a/arch/arm64/lib/kasan_sw_tags.S b/arch/arm64/lib/kasan_sw_tags.S
new file mode 100644
index 0000000000000..5b04464c045eb
--- /dev/null
+++ b/arch/arm64/lib/kasan_sw_tags.S
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Google LLC
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+/*
+ * Report a tag mismatch detected by tag-based KASAN.
+ *
+ * A compiler-generated thunk calls this with a non-AAPCS calling
+ * convention. Upon entry to this function, registers are as follows:
+ *
+ * x0:         fault address (see below for restore)
+ * x1:         fault description (see below for restore)
+ * x2 to x15:  callee-saved
+ * x16 to x17: safe to clobber
+ * x18 to x30: callee-saved
+ * sp:         pre-decremented by 256 bytes (see below for restore)
+ *
+ * The caller has decremented the SP by 256 bytes, and created a
+ * structure on the stack as follows:
+ *
+ * sp + 0..15:    x0 and x1 to be restored
+ * sp + 16..231:  free for use
+ * sp + 232..247: x29 and x30 (same as in GPRs)
+ * sp + 248..255: free for use
+ *
+ * Note that this is not a struct pt_regs.
+ *
+ * To call a regular AAPCS function we must save x2 to x15 (which we can
+ * store in the gaps), and create a frame record (for which we can use
+ * x29 and x30 spilled by the caller as those match the GPRs).
+ *
+ * The caller expects x0 and x1 to be restored from the structure, and
+ * for the structure to be removed from the stack (i.e. the SP must be
+ * incremented by 256 prior to return).
+ */
+SYM_CODE_START(__hwasan_tag_mismatch)
+#ifdef BTI_C
+	BTI_C
+#endif
+	add	x29, sp, #232
+	stp	x2, x3, [sp, #8 * 2]
+	stp	x4, x5, [sp, #8 * 4]
+	stp	x6, x7, [sp, #8 * 6]
+	stp	x8, x9, [sp, #8 * 8]
+	stp	x10, x11, [sp, #8 * 10]
+	stp	x12, x13, [sp, #8 * 12]
+	stp	x14, x15, [sp, #8 * 14]
+#ifndef CONFIG_SHADOW_CALL_STACK
+	str	x18, [sp, #8 * 18]
+#endif
+
+	mov	x2, x30
+	bl	kasan_tag_mismatch
+
+	ldp	x0, x1, [sp]
+	ldp	x2, x3, [sp, #8 * 2]
+	ldp	x4, x5, [sp, #8 * 4]
+	ldp	x6, x7, [sp, #8 * 6]
+	ldp	x8, x9, [sp, #8 * 8]
+	ldp	x10, x11, [sp, #8 * 10]
+	ldp	x12, x13, [sp, #8 * 12]
+	ldp	x14, x15, [sp, #8 * 14]
+#ifndef CONFIG_SHADOW_CALL_STACK
+	ldr	x18, [sp, #8 * 18]
+#endif
+	ldp	x29, x30, [sp, #8 * 29]
+
+	/* remove the structure from the stack */
+	add	sp, sp, #256
+	ret
+SYM_CODE_END(__hwasan_tag_mismatch)
+EXPORT_SYMBOL(__hwasan_tag_mismatch)
diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
index 9df8e7f69e870..9362938abbfa5 100644
--- a/mm/kasan/sw_tags.c
+++ b/mm/kasan/sw_tags.c
@@ -207,3 +207,10 @@ struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
 
 	return &alloc_meta->free_track[i];
 }
+
+void kasan_tag_mismatch(unsigned long addr, unsigned long access_info,
+			unsigned long ret_ip)
+{
+	kasan_report(addr, 1 << (access_info & 0xf), access_info & 0x10,
+		     ret_ip);
+}
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 3d791908ed364..801c415bac59d 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -50,6 +50,7 @@ endif
 CFLAGS_KASAN := -fsanitize=kernel-hwaddress \
 		$(call cc-param,hwasan-instrument-stack=$(stack_enable)) \
 		$(call cc-param,hwasan-use-short-granules=0) \
+		$(call cc-param,hwasan-inline-all-checks=0) \
 		$(instrumentation_flags)
 
 endif # CONFIG_KASAN_SW_TAGS
-- 
GitLab


From 768318a7887554ed7323f9ff1861ade50719f9ce Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Thu, 24 Jun 2021 18:39:42 -0700
Subject: [PATCH 3750/4878] BACKPORT: mm/vmalloc: unbreak kasan vmalloc support

(Backport: adjacent lines changed in __get_vm_area_node();
 add shift variable from 121e6f3258fe3 to __vmalloc_node_range.)

In commit 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings"),
__vmalloc_node_range was changed such that __get_vm_area_node was no
longer called with the requested/real size of the vmalloc allocation,
but rather with a rounded-up size.

This means that __get_vm_area_node called kasan_unpoision_vmalloc() with
a rounded up size rather than the real size.  This led to it allowing
access to too much memory and so missing vmalloc OOBs and failing the
kasan kunit tests.

Pass the real size and the desired shift into __get_vm_area_node.  This
allows it to round up the size for the underlying allocators while still
unpoisioning the correct quantity of shadow memory.

Adjust the other call-sites to pass in PAGE_SHIFT for the shift value.

Link: https://lkml.kernel.org/r/20210617081330.98629-1-dja@axtens.net
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213335
Fixes: 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings")
Signed-off-by: Daniel Axtens <dja@axtens.net>
Tested-by: David Gow <davidgow@google.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7ca3027b726be681c8e6292b5a81ebcde7581710)
Bug: 217222520
Change-Id: I348763e085a5d03428b5087367008c04a52cc842
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/vmalloc.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 775dd84766869..629ad56c328bf 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2058,15 +2058,16 @@ static void clear_vm_uninitialized_flag(struct vm_struct *vm)
 }
 
 static struct vm_struct *__get_vm_area_node(unsigned long size,
-		unsigned long align, unsigned long flags, unsigned long start,
-		unsigned long end, int node, gfp_t gfp_mask, const void *caller)
+		unsigned long align, unsigned long shift, unsigned long flags,
+		unsigned long start, unsigned long end, int node,
+		gfp_t gfp_mask, const void *caller)
 {
 	struct vmap_area *va;
 	struct vm_struct *area;
 	unsigned long requested_size = size;
 
 	BUG_ON(in_interrupt());
-	size = PAGE_ALIGN(size);
+	size = ALIGN(size, 1ul << shift);
 	if (unlikely(!size))
 		return NULL;
 
@@ -2098,8 +2099,8 @@ struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags,
 				       unsigned long start, unsigned long end,
 				       const void *caller)
 {
-	return __get_vm_area_node(size, 1, flags, start, end, NUMA_NO_NODE,
-				  GFP_KERNEL, caller);
+	return __get_vm_area_node(size, 1, PAGE_SHIFT, flags, start, end,
+				  NUMA_NO_NODE, GFP_KERNEL, caller);
 }
 EXPORT_SYMBOL_GPL(__get_vm_area_caller);
 
@@ -2116,7 +2117,8 @@ EXPORT_SYMBOL_GPL(__get_vm_area_caller);
  */
 struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
 {
-	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
+	return __get_vm_area_node(size, 1, PAGE_SHIFT, flags,
+				  VMALLOC_START, VMALLOC_END,
 				  NUMA_NO_NODE, GFP_KERNEL,
 				  __builtin_return_address(0));
 }
@@ -2124,7 +2126,8 @@ struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
 struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
 				const void *caller)
 {
-	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
+	return __get_vm_area_node(size, 1, PAGE_SHIFT, flags,
+				  VMALLOC_START, VMALLOC_END,
 				  NUMA_NO_NODE, GFP_KERNEL, caller);
 }
 
@@ -2556,13 +2559,14 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	struct vm_struct *area;
 	void *addr;
 	unsigned long real_size = size;
+	unsigned int shift = PAGE_SHIFT;
 
-	size = PAGE_ALIGN(size);
 	if (!size || (size >> PAGE_SHIFT) > totalram_pages())
 		goto fail;
 
-	area = __get_vm_area_node(real_size, align, VM_ALLOC | VM_UNINITIALIZED |
-				vm_flags, start, end, node, gfp_mask, caller);
+	area = __get_vm_area_node(real_size, align, shift, VM_ALLOC |
+				  VM_UNINITIALIZED | vm_flags, start, end, node,
+				  gfp_mask, caller);
 	if (!area)
 		goto fail;
 
@@ -2577,6 +2581,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	 */
 	clear_vm_uninitialized_flag(area);
 
+	size = PAGE_ALIGN(size);
 	kmemleak_vmalloc(area, size, gfp_mask);
 
 	return addr;
-- 
GitLab


From 781ec5fa5b510dfb9cc236082e14ea1b1310dd7d Mon Sep 17 00:00:00 2001
From: David Gow <davidgow@google.com>
Date: Mon, 28 Jun 2021 19:40:36 -0700
Subject: [PATCH 3751/4878] UPSTREAM: kasan: test: improve failure message in
 KUNIT_EXPECT_KASAN_FAIL()

The KUNIT_EXPECT_KASAN_FAIL() macro currently uses KUNIT_EXPECT_EQ() to
compare fail_data.report_expected and fail_data.report_found.  This always
gave a somewhat useless error message on failure, but the addition of
extra compile-time checking with READ_ONCE() has caused it to get much
longer, and be truncated before anything useful is displayed.

Instead, just check fail_data.report_found by hand (we've just set
report_expected to 'true'), and print a better failure message with
KUNIT_FAIL().  Because of this, report_expected is no longer used
anywhere, and can be removed.

Beforehand, a failure in:
KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)area)[3100]);
would have looked like:
[22:00:34] [FAILED] vmalloc_oob
[22:00:34]     # vmalloc_oob: EXPECTATION FAILED at lib/test_kasan.c:991
[22:00:34]     Expected ({ do { extern void __compiletime_assert_705(void) __attribute__((__error__("Unsupported access size for {READ,WRITE}_ONCE()."))); if (!((sizeof(fail_data.report_expected) == sizeof(char) || sizeof(fail_data.repp
[22:00:34]     not ok 45 - vmalloc_oob

With this change, it instead looks like:
[22:04:04] [FAILED] vmalloc_oob
[22:04:04]     # vmalloc_oob: EXPECTATION FAILED at lib/test_kasan.c:993
[22:04:04]     KASAN failure expected in "((volatile char *)area)[3100]", but none occurred
[22:04:04]     not ok 45 - vmalloc_oob

Also update the example failure in the documentation to reflect this.

Link: https://lkml.kernel.org/r/20210606005531.165954-1-davidgow@google.com
Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Acked-by: Brendan Higgins <brendanhiggins@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: David Gow <davidgow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 3ff16d30f593d80a958104ee06a94562a12c5879)
Bug: 217222520
Change-Id: If4a0747d9e25dafbfdc219b760ebe64b8e0c1676
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst |  9 ++++-----
 include/linux/kasan.h             |  1 -
 lib/test_kasan.c                  | 11 +++++------
 3 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index d3f335ffc7517..83ec4a556c199 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -447,11 +447,10 @@ When a test fails due to a failed ``kmalloc``::
 
 When a test fails due to a missing KASAN report::
 
-        # kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:629
-        Expected kasan_data->report_expected == kasan_data->report_found, but
-        kasan_data->report_expected == 1
-        kasan_data->report_found == 0
-        not ok 28 - kmalloc_double_kzfree
+        # kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:974
+        KASAN failure expected in "kfree_sensitive(ptr)", but none occurred
+        not ok 44 - kmalloc_double_kzfree
+
 
 At the end the cumulative status of all KASAN tests is printed. On success::
 
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index a1c7ce5f3e4f2..768d7d342757f 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -18,7 +18,6 @@ struct task_struct;
 
 /* kasan_data struct is used in KUnit tests for KASAN expected failures */
 struct kunit_kasan_expectation {
-	bool report_expected;
 	bool report_found;
 };
 
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index cacbbbdef768d..44e08f4d9c520 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -55,7 +55,6 @@ static int kasan_test_init(struct kunit *test)
 	multishot = kasan_save_enable_multi_shot();
 	kasan_set_tagging_report_once(false);
 	fail_data.report_found = false;
-	fail_data.report_expected = false;
 	kunit_add_named_resource(test, NULL, NULL, &resource,
 					"kasan_data", &fail_data);
 	return 0;
@@ -94,20 +93,20 @@ static void kasan_test_exit(struct kunit *test)
 	    !kasan_async_mode_enabled())				\
 		migrate_disable();					\
 	KUNIT_EXPECT_FALSE(test, READ_ONCE(fail_data.report_found));	\
-	WRITE_ONCE(fail_data.report_expected, true);			\
 	barrier();							\
 	expression;							\
 	barrier();							\
-	KUNIT_EXPECT_EQ(test,						\
-			READ_ONCE(fail_data.report_expected),		\
-			READ_ONCE(fail_data.report_found));		\
+	if (!READ_ONCE(fail_data.report_found)) {			\
+		KUNIT_FAIL(test, KUNIT_SUBTEST_INDENT "KASAN failure "	\
+				"expected in \"" #expression		\
+				 "\", but none occurred");		\
+	}								\
 	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS)) {				\
 		if (READ_ONCE(fail_data.report_found))			\
 			kasan_enable_tagging_sync();			\
 		migrate_enable();					\
 	}								\
 	WRITE_ONCE(fail_data.report_found, false);			\
-	WRITE_ONCE(fail_data.report_expected, false);			\
 } while (0)
 
 #define KASAN_TEST_NEEDS_CONFIG_ON(test, config) do {			\
-- 
GitLab


From f7313c97b94bb36f55b01952facfd018dd531973 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Mon, 28 Jun 2021 19:40:39 -0700
Subject: [PATCH 3752/4878] UPSTREAM: kasan: allow an architecture to disable
 inline instrumentation

Patch series "KASAN core changes for ppc64 radix KASAN", v16.

Building on the work of Christophe, Aneesh and Balbir, I've ported KASAN
to 64-bit Book3S kernels running on the Radix MMU.  I've been trying this
for a while, but we keep having collisions between the kasan code in the
mm tree and the code I want to put in to the ppc tree.

This series just contains the kasan core changes that we need.  There
should be no noticeable changes to other platforms.

This patch (of 4):

For annoying architectural reasons, it's very difficult to support inline
instrumentation on powerpc64.*

Add a Kconfig flag to allow an arch to disable inline.  (It's a bit
annoying to be 'backwards', but I'm not aware of any way to have an arch
force a symbol to be 'n', rather than 'y'.)

We also disable stack instrumentation in this case as it does things that
are functionally equivalent to inline instrumentation, namely adding code
that touches the shadow directly without going through a C helper.

* on ppc64 atm, the shadow lives in virtual memory and isn't accessible in
real mode.  However, before we turn on virtual memory, we parse the device
tree to determine which platform and MMU we're running under.  That calls
generic DT code, which is instrumented.  Inline instrumentation in DT
would unconditionally attempt to touch the shadow region, which we won't
have set up yet, and would crash.  We can make outline mode wait for the
arch to be ready, but we can't change what the compiler inserts for inline
mode.

Link: https://lkml.kernel.org/r/20210624034050.511391-1-dja@axtens.net
Link: https://lkml.kernel.org/r/20210624034050.511391-2-dja@axtens.net
Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 158f25522ca8cc87f512a03ed5e2a5923bd37eb3)
Bug: 217222520
Change-Id: Ib595f60b5efd46e5251a1bb82322a1c3a02585ca
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/Kconfig.kasan | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index a5ba06a863584..04f4a7604d2a6 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -12,6 +12,13 @@ config HAVE_ARCH_KASAN_HW_TAGS
 config HAVE_ARCH_KASAN_VMALLOC
 	bool
 
+config ARCH_DISABLE_KASAN_INLINE
+	bool
+	help
+	  An architecture might not support inline instrumentation.
+	  When this option is selected, inline and stack instrumentation are
+	  disabled.
+
 config CC_HAS_KASAN_GENERIC
 	def_bool $(cc-option, -fsanitize=kernel-address)
 
@@ -130,6 +137,7 @@ config KASAN_OUTLINE
 
 config KASAN_INLINE
 	bool "Inline instrumentation"
+	depends on !ARCH_DISABLE_KASAN_INLINE
 	help
 	  Compiler directly inserts code checking shadow memory before
 	  memory accesses. This is faster than outline (in some workloads
@@ -141,6 +149,7 @@ endchoice
 config KASAN_STACK
 	bool "Enable stack instrumentation (unsafe)" if CC_IS_CLANG && !COMPILE_TEST
 	depends on KASAN_GENERIC || KASAN_SW_TAGS
+	depends on !ARCH_DISABLE_KASAN_INLINE
 	default y if CC_IS_GCC
 	help
 	  The LLVM stack address sanitizer has a know problem that
@@ -154,6 +163,9 @@ config KASAN_STACK
 	  but clang users can still enable it for builds without
 	  CONFIG_COMPILE_TEST.	On gcc it is assumed to always be safe
 	  to use and enabled by default.
+	  If the architecture disables inline instrumentation, stack
+	  instrumentation is also disabled as it adds inline-style
+	  instrumentation that is run unconditionally.
 
 config KASAN_S390_4_LEVEL_PAGING
 	bool "KASan: use 4-level paging"
-- 
GitLab


From b0915718e746685e4f4da3aeadb10a13f975a754 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Mon, 28 Jun 2021 19:40:42 -0700
Subject: [PATCH 3753/4878] UPSTREAM: kasan: allow architectures to provide an
 outline readiness check

Allow architectures to define a kasan_arch_is_ready() hook that bails out
of any function that's about to touch the shadow unless the arch says that
it is ready for the memory to be accessed.  This is fairly uninvasive and
should have a negligible performance penalty.

This will only work in outline mode, so an arch must specify
ARCH_DISABLE_KASAN_INLINE if it requires this.

Link: https://lkml.kernel.org/r/20210624034050.511391-3-dja@axtens.net
Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Marco Elver <elver@google.com>
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit af3751f3c2b6282bebcb56c35bbe4c8b671f80aa)
Bug: 217222520
Change-Id: I739861502711d1658e650eb251ee6deb3f180475
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/common.c  | 3 +++
 mm/kasan/generic.c | 3 +++
 mm/kasan/kasan.h   | 6 ++++++
 mm/kasan/shadow.c  | 6 ++++++
 4 files changed, 18 insertions(+)

diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 0ecd293af3443..97a72e0e06407 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -328,6 +328,9 @@ static inline bool ____kasan_slab_free(struct kmem_cache *cache, void *object,
 	u8 tag;
 	void *tagged_object;
 
+	if (!kasan_arch_is_ready())
+		return false;
+
 	tag = get_tag(object);
 	tagged_object = object;
 	object = kasan_reset_tag(object);
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index 53cbf28859b5a..c3f5ba7a294a8 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -163,6 +163,9 @@ static __always_inline bool check_region_inline(unsigned long addr,
 						size_t size, bool write,
 						unsigned long ret_ip)
 {
+	if (!kasan_arch_is_ready())
+		return true;
+
 	if (unlikely(size == 0))
 		return true;
 
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index ed9c45a63f9a8..5bf6f18f3f1d2 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -461,6 +461,12 @@ static inline void kasan_poison_last_granule(const void *address, size_t size) {
 
 #endif /* CONFIG_KASAN_GENERIC */
 
+#ifndef kasan_arch_is_ready
+static inline bool kasan_arch_is_ready(void)	{ return true; }
+#elif !defined(CONFIG_KASAN_GENERIC) || !defined(CONFIG_KASAN_OUTLINE)
+#error kasan_arch_is_ready only works in KASAN generic outline mode!
+#endif
+
 /*
  * Exported functions for interfaces called from assembly or from generated
  * code. Declarations here to avoid warning about missing declarations.
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index 727ad46291731..bbb4c02f8c4e4 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -73,6 +73,9 @@ void kasan_poison(const void *addr, size_t size, u8 value, bool init)
 {
 	void *shadow_start, *shadow_end;
 
+	if (!kasan_arch_is_ready())
+		return;
+
 	/*
 	 * Perform shadow offset calculation based on untagged address, as
 	 * some of the callers (e.g. kasan_poison_object_data) pass tagged
@@ -99,6 +102,9 @@ EXPORT_SYMBOL(kasan_poison);
 #ifdef CONFIG_KASAN_GENERIC
 void kasan_poison_last_granule(const void *addr, size_t size)
 {
+	if (!kasan_arch_is_ready())
+		return;
+
 	if (size & KASAN_GRANULE_MASK) {
 		u8 *shadow = (u8 *)kasan_mem_to_shadow(addr + size);
 		*shadow = size & KASAN_GRANULE_MASK;
-- 
GitLab


From fff0ec1ffb1da7de2af140ae93163a60e986f7dc Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Mon, 28 Jun 2021 19:40:52 -0700
Subject: [PATCH 3754/4878] UPSTREAM: kasan: rename
 CONFIG_KASAN_SW_TAGS_IDENTIFY to CONFIG_KASAN_TAGS_IDENTIFY

Patch series "kasan: add memory corruption identification support for hw tag-based kasan", v4.

Add memory corruption identification for hardware tag-based KASAN mode.

This patch (of 3):

Rename CONFIG_KASAN_SW_TAGS_IDENTIFY to CONFIG_KASAN_TAGS_IDENTIFY in
order to be compatible with hardware tag-based mode.

Link: https://lkml.kernel.org/r/20210626100931.22794-1-Kuan-Ying.Lee@mediatek.com
Link: https://lkml.kernel.org/r/20210626100931.22794-2-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Suggested-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f06f78ab48fb90cfbef5289e5556704b74c46b7a)
Bug: 217222520
Change-Id: Ifdf6fea77cff9612ca53a24857e6467e1d08ebad
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/Kconfig.kasan         | 2 +-
 mm/kasan/kasan.h          | 4 ++--
 mm/kasan/report_sw_tags.c | 2 +-
 mm/kasan/sw_tags.c        | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 04f4a7604d2a6..59eb68f9d06b6 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -176,7 +176,7 @@ config KASAN_S390_4_LEVEL_PAGING
 	  to 3TB of RAM with KASan enabled). This options allows to force
 	  4-level paging instead.
 
-config KASAN_SW_TAGS_IDENTIFY
+config KASAN_TAGS_IDENTIFY
 	bool "Enable memory corruption identification"
 	depends on KASAN_SW_TAGS
 	help
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 5bf6f18f3f1d2..47819cd3397d7 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -154,7 +154,7 @@ struct kasan_track {
 	depot_stack_handle_t stack;
 };
 
-#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
 #define KASAN_NR_FREE_STACKS 5
 #else
 #define KASAN_NR_FREE_STACKS 1
@@ -171,7 +171,7 @@ struct kasan_alloc_meta {
 #else
 	struct kasan_track free_track[KASAN_NR_FREE_STACKS];
 #endif
-#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
 	u8 free_pointer_tag[KASAN_NR_FREE_STACKS];
 	u8 free_track_idx;
 #endif
diff --git a/mm/kasan/report_sw_tags.c b/mm/kasan/report_sw_tags.c
index 3d20d3451d9ea..821a14a19a92f 100644
--- a/mm/kasan/report_sw_tags.c
+++ b/mm/kasan/report_sw_tags.c
@@ -31,7 +31,7 @@
 
 const char *kasan_get_bug_type(struct kasan_access_info *info)
 {
-#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
 	struct kasan_alloc_meta *alloc_meta;
 	struct kmem_cache *cache;
 	struct page *page;
diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
index 9362938abbfa5..dd05e6c801faa 100644
--- a/mm/kasan/sw_tags.c
+++ b/mm/kasan/sw_tags.c
@@ -177,7 +177,7 @@ void kasan_set_free_info(struct kmem_cache *cache,
 	if (!alloc_meta)
 		return;
 
-#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
 	idx = alloc_meta->free_track_idx;
 	alloc_meta->free_pointer_tag[idx] = tag;
 	alloc_meta->free_track_idx = (idx + 1) % KASAN_NR_FREE_STACKS;
@@ -196,7 +196,7 @@ struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
 	if (!alloc_meta)
 		return NULL;
 
-#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
 	for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
 		if (alloc_meta->free_pointer_tag[i] == tag)
 			break;
-- 
GitLab


From 0f4e466ae0ae4f9d165b86b2e9361ddb781cefd7 Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Mon, 28 Jun 2021 19:40:55 -0700
Subject: [PATCH 3755/4878] UPSTREAM: kasan: integrate the common part of two
 KASAN tag-based modes

1. Move kasan_get_free_track() and kasan_set_free_info() into tags.c
   and combine these two functions for SW_TAGS and HW_TAGS kasan mode.

2. Move kasan_get_bug_type() to report_tags.c and make this function
   compatible for SW_TAGS and HW_TAGS kasan mode.

Link: https://lkml.kernel.org/r/20210626100931.22794-3-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Suggested-by: Marco Elver <elver@google.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit a0503b8a0b3c8ef1be55744a248bffb8f533d227)
Bug: 217222520
Change-Id: I36d269beca2d41496f6decf4d58821deac85b239
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/Makefile         |  4 +--
 mm/kasan/hw_tags.c        | 22 ---------------
 mm/kasan/report_hw_tags.c |  5 ----
 mm/kasan/report_sw_tags.c | 43 ----------------------------
 mm/kasan/report_tags.c    | 51 +++++++++++++++++++++++++++++++++
 mm/kasan/sw_tags.c        | 41 ---------------------------
 mm/kasan/tags.c           | 59 +++++++++++++++++++++++++++++++++++++++
 7 files changed, 112 insertions(+), 113 deletions(-)
 create mode 100644 mm/kasan/report_tags.c
 create mode 100644 mm/kasan/tags.c

diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index 9fe39a66388a8..adcd9acaef615 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -37,5 +37,5 @@ CFLAGS_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
 
 obj-$(CONFIG_KASAN) := common.o report.o
 obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o
-obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o
-obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o
+obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o tags.o report_tags.o
+obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o tags.o report_tags.o
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index ed5e5b833d610..4ea8c368b5b8b 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -216,28 +216,6 @@ void __init kasan_init_hw_tags(void)
 	pr_info("KernelAddressSanitizer initialized\n");
 }
 
-void kasan_set_free_info(struct kmem_cache *cache,
-				void *object, u8 tag)
-{
-	struct kasan_alloc_meta *alloc_meta;
-
-	alloc_meta = kasan_get_alloc_meta(cache, object);
-	if (alloc_meta)
-		kasan_set_track(&alloc_meta->free_track[0], GFP_NOWAIT);
-}
-
-struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
-				void *object, u8 tag)
-{
-	struct kasan_alloc_meta *alloc_meta;
-
-	alloc_meta = kasan_get_alloc_meta(cache, object);
-	if (!alloc_meta)
-		return NULL;
-
-	return &alloc_meta->free_track[0];
-}
-
 void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags)
 {
 	/*
diff --git a/mm/kasan/report_hw_tags.c b/mm/kasan/report_hw_tags.c
index 42b2168755d62..5dbbbb930e7a7 100644
--- a/mm/kasan/report_hw_tags.c
+++ b/mm/kasan/report_hw_tags.c
@@ -15,11 +15,6 @@
 
 #include "kasan.h"
 
-const char *kasan_get_bug_type(struct kasan_access_info *info)
-{
-	return "invalid-access";
-}
-
 void *kasan_find_first_bad_addr(void *addr, size_t size)
 {
 	return kasan_reset_tag(addr);
diff --git a/mm/kasan/report_sw_tags.c b/mm/kasan/report_sw_tags.c
index 821a14a19a92f..d2298c3578349 100644
--- a/mm/kasan/report_sw_tags.c
+++ b/mm/kasan/report_sw_tags.c
@@ -29,49 +29,6 @@
 #include "kasan.h"
 #include "../slab.h"
 
-const char *kasan_get_bug_type(struct kasan_access_info *info)
-{
-#ifdef CONFIG_KASAN_TAGS_IDENTIFY
-	struct kasan_alloc_meta *alloc_meta;
-	struct kmem_cache *cache;
-	struct page *page;
-	const void *addr;
-	void *object;
-	u8 tag;
-	int i;
-
-	tag = get_tag(info->access_addr);
-	addr = kasan_reset_tag(info->access_addr);
-	page = kasan_addr_to_page(addr);
-	if (page && PageSlab(page)) {
-		cache = page->slab_cache;
-		object = nearest_obj(cache, page, (void *)addr);
-		alloc_meta = kasan_get_alloc_meta(cache, object);
-
-		if (alloc_meta) {
-			for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
-				if (alloc_meta->free_pointer_tag[i] == tag)
-					return "use-after-free";
-			}
-		}
-		return "out-of-bounds";
-	}
-
-#endif
-	/*
-	 * If access_size is a negative number, then it has reason to be
-	 * defined as out-of-bounds bug type.
-	 *
-	 * Casting negative numbers to size_t would indeed turn up as
-	 * a large size_t and its value will be larger than ULONG_MAX/2,
-	 * so that this can qualify as out-of-bounds.
-	 */
-	if (info->access_addr + info->access_size < info->access_addr)
-		return "out-of-bounds";
-
-	return "invalid-access";
-}
-
 void *kasan_find_first_bad_addr(void *addr, size_t size)
 {
 	u8 tag = get_tag(addr);
diff --git a/mm/kasan/report_tags.c b/mm/kasan/report_tags.c
new file mode 100644
index 0000000000000..8a319fc16dab9
--- /dev/null
+++ b/mm/kasan/report_tags.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2020 Google, Inc.
+ */
+
+#include "kasan.h"
+#include "../slab.h"
+
+const char *kasan_get_bug_type(struct kasan_access_info *info)
+{
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
+	struct kasan_alloc_meta *alloc_meta;
+	struct kmem_cache *cache;
+	struct page *page;
+	const void *addr;
+	void *object;
+	u8 tag;
+	int i;
+
+	tag = get_tag(info->access_addr);
+	addr = kasan_reset_tag(info->access_addr);
+	page = kasan_addr_to_page(addr);
+	if (page && PageSlab(page)) {
+		cache = page->slab_cache;
+		object = nearest_obj(cache, page, (void *)addr);
+		alloc_meta = kasan_get_alloc_meta(cache, object);
+
+		if (alloc_meta) {
+			for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
+				if (alloc_meta->free_pointer_tag[i] == tag)
+					return "use-after-free";
+			}
+		}
+		return "out-of-bounds";
+	}
+#endif
+
+	/*
+	 * If access_size is a negative number, then it has reason to be
+	 * defined as out-of-bounds bug type.
+	 *
+	 * Casting negative numbers to size_t would indeed turn up as
+	 * a large size_t and its value will be larger than ULONG_MAX/2,
+	 * so that this can qualify as out-of-bounds.
+	 */
+	if (info->access_addr + info->access_size < info->access_addr)
+		return "out-of-bounds";
+
+	return "invalid-access";
+}
diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
index dd05e6c801faa..bd3f540feb472 100644
--- a/mm/kasan/sw_tags.c
+++ b/mm/kasan/sw_tags.c
@@ -167,47 +167,6 @@ void __hwasan_tag_memory(unsigned long addr, u8 tag, unsigned long size)
 }
 EXPORT_SYMBOL(__hwasan_tag_memory);
 
-void kasan_set_free_info(struct kmem_cache *cache,
-				void *object, u8 tag)
-{
-	struct kasan_alloc_meta *alloc_meta;
-	u8 idx = 0;
-
-	alloc_meta = kasan_get_alloc_meta(cache, object);
-	if (!alloc_meta)
-		return;
-
-#ifdef CONFIG_KASAN_TAGS_IDENTIFY
-	idx = alloc_meta->free_track_idx;
-	alloc_meta->free_pointer_tag[idx] = tag;
-	alloc_meta->free_track_idx = (idx + 1) % KASAN_NR_FREE_STACKS;
-#endif
-
-	kasan_set_track(&alloc_meta->free_track[idx], GFP_NOWAIT);
-}
-
-struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
-				void *object, u8 tag)
-{
-	struct kasan_alloc_meta *alloc_meta;
-	int i = 0;
-
-	alloc_meta = kasan_get_alloc_meta(cache, object);
-	if (!alloc_meta)
-		return NULL;
-
-#ifdef CONFIG_KASAN_TAGS_IDENTIFY
-	for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
-		if (alloc_meta->free_pointer_tag[i] == tag)
-			break;
-	}
-	if (i == KASAN_NR_FREE_STACKS)
-		i = alloc_meta->free_track_idx;
-#endif
-
-	return &alloc_meta->free_track[i];
-}
-
 void kasan_tag_mismatch(unsigned long addr, unsigned long access_info,
 			unsigned long ret_ip)
 {
diff --git a/mm/kasan/tags.c b/mm/kasan/tags.c
new file mode 100644
index 0000000000000..8f48b9502a177
--- /dev/null
+++ b/mm/kasan/tags.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains common tag-based KASAN code.
+ *
+ * Copyright (c) 2018 Google, Inc.
+ * Copyright (c) 2020 Google, Inc.
+ */
+
+#include <linux/init.h>
+#include <linux/kasan.h>
+#include <linux/kernel.h>
+#include <linux/memory.h>
+#include <linux/mm.h>
+#include <linux/static_key.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include "kasan.h"
+
+void kasan_set_free_info(struct kmem_cache *cache,
+				void *object, u8 tag)
+{
+	struct kasan_alloc_meta *alloc_meta;
+	u8 idx = 0;
+
+	alloc_meta = kasan_get_alloc_meta(cache, object);
+	if (!alloc_meta)
+		return;
+
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
+	idx = alloc_meta->free_track_idx;
+	alloc_meta->free_pointer_tag[idx] = tag;
+	alloc_meta->free_track_idx = (idx + 1) % KASAN_NR_FREE_STACKS;
+#endif
+
+	kasan_set_track(&alloc_meta->free_track[idx], GFP_NOWAIT);
+}
+
+struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
+				void *object, u8 tag)
+{
+	struct kasan_alloc_meta *alloc_meta;
+	int i = 0;
+
+	alloc_meta = kasan_get_alloc_meta(cache, object);
+	if (!alloc_meta)
+		return NULL;
+
+#ifdef CONFIG_KASAN_TAGS_IDENTIFY
+	for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
+		if (alloc_meta->free_pointer_tag[i] == tag)
+			break;
+	}
+	if (i == KASAN_NR_FREE_STACKS)
+		i = alloc_meta->free_track_idx;
+#endif
+
+	return &alloc_meta->free_track[i];
+}
-- 
GitLab


From f4b29a0cf0824ac37c48a5c1337157e3d0c43c0c Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Mon, 28 Jun 2021 19:40:58 -0700
Subject: [PATCH 3756/4878] UPSTREAM: kasan: add memory corruption
 identification support for hardware tag-based mode

Add memory corruption identification support for hardware tag-based mode.
We store one old free pointer tag and free backtrace instead of five
because hardware tag-based kasan only has 16 different tags.

If we store as many stacks as SW tag-based kasan does(5 stacks), there is
high probability to find the same tag in the stacks when out-of-bound
issues happened and we will mistake out-of-bound issue for use-after-free.

Link: https://lkml.kernel.org/r/20210626100931.22794-4-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Suggested-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7a22bdc3c443d5abc420df1381e425b49e8901a3)
Bug: 217222520
Change-Id: I2282b0734985712981e1bc061a14945840f16e73
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/Kconfig.kasan | 2 +-
 mm/kasan/kasan.h  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index 59eb68f9d06b6..b668d854531de 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -178,7 +178,7 @@ config KASAN_S390_4_LEVEL_PAGING
 
 config KASAN_TAGS_IDENTIFY
 	bool "Enable memory corruption identification"
-	depends on KASAN_SW_TAGS
+	depends on KASAN_SW_TAGS || KASAN_HW_TAGS
 	help
 	  This option enables best-effort identification of bug type
 	  (use-after-free or out-of-bounds) at the cost of increased
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 47819cd3397d7..5ebca7c3c3792 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -154,7 +154,7 @@ struct kasan_track {
 	depot_stack_handle_t stack;
 };
 
-#ifdef CONFIG_KASAN_TAGS_IDENTIFY
+#if defined(CONFIG_KASAN_TAGS_IDENTIFY) && defined(CONFIG_KASAN_SW_TAGS)
 #define KASAN_NR_FREE_STACKS 5
 #else
 #define KASAN_NR_FREE_STACKS 1
-- 
GitLab


From 47b2adaaa88a2ae1ae4c7b58a786002df40eb342 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Wed, 14 Jul 2021 21:26:40 -0700
Subject: [PATCH 3757/4878] UPSTREAM: kasan: fix build by including kernel.h

The <linux/kasan.h> header relies on _RET_IP_ being defined, and had been
receiving that definition via inclusion of bug.h which includes kernel.h.
However, since f39650de687e ("kernel.h: split out panic and oops helpers")
that is no longer the case and get the following build error when building
CONFIG_KASAN_HW_TAGS on arm64:

  In file included from arch/arm64/mm/kasan_init.c:10:
  include/linux/kasan.h: In function 'kasan_slab_free':
  include/linux/kasan.h:230:39: error: '_RET_IP_' undeclared (first use in this function)
    230 |   return __kasan_slab_free(s, object, _RET_IP_, init);

Fix it by including kernel.h from kasan.h.

Link: https://lkml.kernel.org/r/20210705072716.2125074-1-elver@google.com
Fixes: f39650de687e ("kernel.h: split out panic and oops helpers")
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 2db710cc846d3321a4dc0977fa13769bddba2351)
Bug: 217222520
Change-Id: I4225472344a2f7cac51622d270a7adadb58711e3
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 768d7d342757f..2b14a22898953 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -3,6 +3,7 @@
 #define _LINUX_KASAN_H
 
 #include <linux/bug.h>
+#include <linux/kernel.h>
 #include <linux/static_key.h>
 #include <linux/types.h>
 
-- 
GitLab


From 0a5156326b3ecc2b8c7e46f95497d289bb7189ca Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Wed, 14 Jul 2021 15:38:42 +0100
Subject: [PATCH 3758/4878] UPSTREAM: arm64: kasan: mte: use a constant kernel
 GCR_EL1 value

When KASAN_HW_TAGS is selected, KASAN is enabled at boot time, and the
hardware supports MTE, we'll initialize `kernel_gcr_excl` with a value
dependent on KASAN_TAG_MAX. While the resulting value is a constant
which depends on KASAN_TAG_MAX, we have to perform some runtime work to
generate the value, and have to read the value from memory during the
exception entry path. It would be better if we could generate this as a
constant at compile-time, and use it as such directly.

Early in boot within __cpu_setup(), we initialize GCR_EL1 to a safe
value, and later override this with the value required by KASAN. If
CONFIG_KASAN_HW_TAGS is not selected, or if KASAN is disabeld at boot
time, the kernel will not use IRG instructions, and so the initial value
of GCR_EL1 is does not matter to the kernel. Thus, we can instead have
__cpu_setup() initialize GCR_EL1 to a value consistent with
KASAN_TAG_MAX, and avoid the need to re-initialize it during hotplug and
resume form suspend.

This patch makes arem64 use a compile-time constant KERNEL_GCR_EL1
value, which is compatible with KASAN_HW_TAGS when this is selected.
This removes the need to re-initialize GCR_EL1 dynamically, and acts as
an optimization to the entry assembly, which no longer needs to load
this value from memory. The redundant initialization hooks are removed.

In order to do this, KASAN_TAG_MAX needs to be visible outside of the
core KASAN code. To do this, I've moved the KASAN_TAG_* values into
<linux/kasan-tags.h>.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20210714143843.56537-3-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 82868247897bea2d69a83dca9a6a557e2c96dac4)
Bug: 217222520
Change-Id: I0cd0fd717df3eaba180267baf31fd8730e90e6ef
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/memory.h    |  1 -
 arch/arm64/include/asm/mte-kasan.h |  5 -----
 arch/arm64/include/asm/mte.h       |  6 ------
 arch/arm64/include/asm/sysreg.h    | 16 +++++++++++++++
 arch/arm64/kernel/entry.S          |  5 ++---
 arch/arm64/kernel/mte.c            | 31 ------------------------------
 arch/arm64/kernel/suspend.c        |  1 -
 arch/arm64/mm/proc.S               |  3 +--
 include/linux/kasan-tags.h         | 15 +++++++++++++++
 mm/kasan/hw_tags.c                 |  2 --
 mm/kasan/kasan.h                   | 15 +--------------
 11 files changed, 35 insertions(+), 65 deletions(-)
 create mode 100644 include/linux/kasan-tags.h

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index f50e752d31f9e..b864fdb79df0c 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -236,7 +236,6 @@ static inline const void *__tag_set(const void *addr, u8 tag)
 #define arch_enable_tagging_async()		mte_enable_kernel_async()
 #define arch_set_tagging_report_once(state)	mte_set_report_once(state)
 #define arch_force_async_tag_fault()		mte_check_tfsr_exit()
-#define arch_init_tags(max_tag)			mte_init_tags(max_tag)
 #define arch_get_random_tag()			mte_get_random_tag()
 #define arch_get_mem_tag(addr)			mte_get_mem_tag(addr)
 #define arch_set_mem_tag_range(addr, size, tag, init)	\
diff --git a/arch/arm64/include/asm/mte-kasan.h b/arch/arm64/include/asm/mte-kasan.h
index e541dba6dd23f..41c48c1ba6108 100644
--- a/arch/arm64/include/asm/mte-kasan.h
+++ b/arch/arm64/include/asm/mte-kasan.h
@@ -132,7 +132,6 @@ static inline void mte_set_mem_tag_range(void *addr, size_t size, u8 tag,
 
 void mte_enable_kernel_sync(void);
 void mte_enable_kernel_async(void);
-void mte_init_tags(u64 max_tag);
 
 void mte_set_report_once(bool state);
 bool mte_report_once(void);
@@ -167,10 +166,6 @@ static inline void mte_enable_kernel_async(void)
 {
 }
 
-static inline void mte_init_tags(u64 max_tag)
-{
-}
-
 static inline void mte_set_report_once(bool state)
 {
 }
diff --git a/arch/arm64/include/asm/mte.h b/arch/arm64/include/asm/mte.h
index c724a288a412d..02511650cffe5 100644
--- a/arch/arm64/include/asm/mte.h
+++ b/arch/arm64/include/asm/mte.h
@@ -16,8 +16,6 @@
 
 #include <asm/pgtable-types.h>
 
-extern u64 gcr_kernel_excl;
-
 void mte_clear_page_tags(void *addr);
 unsigned long mte_copy_tags_from_user(void *to, const void __user *from,
 				      unsigned long n);
@@ -43,7 +41,6 @@ void mte_copy_page_tags(void *kto, const void *kfrom);
 void mte_thread_init_user(void);
 void mte_thread_switch(struct task_struct *next);
 void mte_suspend_enter(void);
-void mte_suspend_exit(void);
 long set_mte_ctrl(struct task_struct *task, unsigned long arg);
 long get_mte_ctrl(struct task_struct *task);
 int mte_ptrace_copy_tags(struct task_struct *child, long request,
@@ -72,9 +69,6 @@ static inline void mte_thread_switch(struct task_struct *next)
 static inline void mte_suspend_enter(void)
 {
 }
-static inline void mte_suspend_exit(void)
-{
-}
 static inline long set_mte_ctrl(struct task_struct *task, unsigned long arg)
 {
 	return 0;
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index f3146683d3bf6..47520dc3cf458 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -11,6 +11,7 @@
 
 #include <linux/bits.h>
 #include <linux/stringify.h>
+#include <linux/kasan-tags.h>
 
 /*
  * ARMv8 ARM reserves the following encoding for system registers:
@@ -1074,6 +1075,21 @@
 #define SYS_GCR_EL1_RRND	(BIT(16))
 #define SYS_GCR_EL1_EXCL_MASK	0xffffUL
 
+#ifdef CONFIG_KASAN_HW_TAGS
+/*
+ * KASAN always uses a whole byte for its tags. With CONFIG_KASAN_HW_TAGS it
+ * only uses tags in the range 0xF0-0xFF, which we map to MTE tags 0x0-0xF.
+ */
+#define __MTE_TAG_MIN		(KASAN_TAG_MIN & 0xf)
+#define __MTE_TAG_MAX		(KASAN_TAG_MAX & 0xf)
+#define __MTE_TAG_INCL		GENMASK(__MTE_TAG_MAX, __MTE_TAG_MIN)
+#define KERNEL_GCR_EL1_EXCL	(SYS_GCR_EL1_EXCL_MASK & ~__MTE_TAG_INCL)
+#else
+#define KERNEL_GCR_EL1_EXCL	SYS_GCR_EL1_EXCL_MASK
+#endif
+
+#define KERNEL_GCR_EL1		(SYS_GCR_EL1_RRND | KERNEL_GCR_EL1_EXCL)
+
 /* RGSR_EL1 Definitions */
 #define SYS_RGSR_EL1_TAG_MASK	0xfUL
 #define SYS_RGSR_EL1_SEED_SHIFT	8
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 5369db4b53a40..4223876203808 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -196,9 +196,8 @@ alternative_else_nop_endif
 alternative_if_not ARM64_MTE
 	b	1f
 alternative_else_nop_endif
-	ldr_l	\tmp, gcr_kernel_excl
-
-	mte_set_gcr \tmp, \tmp2
+	mov	\tmp, KERNEL_GCR_EL1
+	msr_s	SYS_GCR_EL1, \tmp
 1:
 #endif
 	.endm
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index 128c442a848e4..bf7b936f888cf 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -23,8 +23,6 @@
 #include <asm/ptrace.h>
 #include <asm/sysreg.h>
 
-u64 gcr_kernel_excl __ro_after_init;
-
 static bool report_fault_once = true;
 
 static DEFINE_PER_CPU_READ_MOSTLY(u64, mte_tcf_preferred);
@@ -104,26 +102,6 @@ int memcmp_pages(struct page *page1, struct page *page2)
 	return ret;
 }
 
-void mte_init_tags(u64 max_tag)
-{
-	static bool gcr_kernel_excl_initialized;
-
-	if (!gcr_kernel_excl_initialized) {
-		/*
-		 * The format of the tags in KASAN is 0xFF and in MTE is 0xF.
-		 * This conversion extracts an MTE tag from a KASAN tag.
-		 */
-		u64 incl = GENMASK(FIELD_GET(MTE_TAG_MASK >> MTE_TAG_SHIFT,
-					     max_tag), 0);
-
-		gcr_kernel_excl = ~incl & SYS_GCR_EL1_EXCL_MASK;
-		gcr_kernel_excl_initialized = true;
-	}
-
-	/* Enable the kernel exclude mask for random tags generation. */
-	write_sysreg_s(SYS_GCR_EL1_RRND | gcr_kernel_excl, SYS_GCR_EL1);
-}
-
 static inline void __mte_enable_kernel(const char *mode, unsigned long tcf)
 {
 	/* Enable MTE Sync Mode for EL1. */
@@ -260,15 +238,6 @@ void mte_suspend_enter(void)
 	mte_check_tfsr_el1();
 }
 
-void mte_suspend_exit(void)
-{
-	if (!system_supports_mte())
-		return;
-
-	sysreg_clear_set_s(SYS_GCR_EL1, SYS_GCR_EL1_EXCL_MASK, gcr_kernel_excl);
-	isb();
-}
-
 long set_mte_ctrl(struct task_struct *task, unsigned long arg)
 {
 	u64 mte_ctrl = (~((arg & PR_MTE_TAG_MASK) >> PR_MTE_TAG_SHIFT) &
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index 1e8dc6f7d178e..ea019a852adc8 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -76,7 +76,6 @@ void notrace __cpu_suspend_exit(void)
 	spectre_v4_enable_mitigation(NULL);
 
 	/* Restore additional feature-specific configuration */
-	mte_suspend_exit();
 	ptrauth_suspend_exit();
 }
 
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index 6e175dbbb4742..c188a9eb3ea66 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -445,8 +445,7 @@ SYM_FUNC_START(__cpu_setup)
 	mov	x10, #MAIR_ATTR_NORMAL_TAGGED
 	bfi	x5, x10, #(8 *  MT_NORMAL_TAGGED), #8
 
-	/* initialize GCR_EL1: all non-zero tags excluded by default */
-	mov	x10, #(SYS_GCR_EL1_RRND | SYS_GCR_EL1_EXCL_MASK)
+	mov	x10, #KERNEL_GCR_EL1
 	msr_s	SYS_GCR_EL1, x10
 
 	/*
diff --git a/include/linux/kasan-tags.h b/include/linux/kasan-tags.h
new file mode 100644
index 0000000000000..4f85f562512cb
--- /dev/null
+++ b/include/linux/kasan-tags.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_KASAN_TAGS_H
+#define _LINUX_KASAN_TAGS_H
+
+#define KASAN_TAG_KERNEL	0xFF /* native kernel pointers tag */
+#define KASAN_TAG_INVALID	0xFE /* inaccessible memory tag */
+#define KASAN_TAG_MAX		0xFD /* maximum value for random tags */
+
+#ifdef CONFIG_KASAN_HW_TAGS
+#define KASAN_TAG_MIN		0xF0 /* minimum value for random tags */
+#else
+#define KASAN_TAG_MIN		0x00 /* minimum value for random tags */
+#endif
+
+#endif /* LINUX_KASAN_TAGS_H */
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 4ea8c368b5b8b..2c6c6c6ddfa26 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -142,8 +142,6 @@ void kasan_init_hw_tags_cpu(void)
 	if (kasan_arg == KASAN_ARG_OFF)
 		return;
 
-	hw_init_tags(KASAN_TAG_MAX);
-
 	/*
 	 * Enable async mode only when explicitly requested through
 	 * the command line.
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 5ebca7c3c3792..0eaca2a86282e 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -3,6 +3,7 @@
 #define __MM_KASAN_KASAN_H
 
 #include <linux/kasan.h>
+#include <linux/kasan-tags.h>
 #include <linux/kfence.h>
 #include <linux/stackdepot.h>
 
@@ -51,16 +52,6 @@ extern bool kasan_flag_async __ro_after_init;
 
 #define KASAN_MEMORY_PER_SHADOW_PAGE	(KASAN_GRANULE_SIZE << PAGE_SHIFT)
 
-#define KASAN_TAG_KERNEL	0xFF /* native kernel pointers tag */
-#define KASAN_TAG_INVALID	0xFE /* inaccessible memory tag */
-#define KASAN_TAG_MAX		0xFD /* maximum value for random tags */
-
-#ifdef CONFIG_KASAN_HW_TAGS
-#define KASAN_TAG_MIN		0xF0 /* mimimum value for random tags */
-#else
-#define KASAN_TAG_MIN		0x00 /* mimimum value for random tags */
-#endif
-
 #ifdef CONFIG_KASAN_GENERIC
 #define KASAN_FREE_PAGE         0xFF  /* page was freed */
 #define KASAN_PAGE_REDZONE      0xFE  /* redzone for kmalloc_large allocations */
@@ -299,9 +290,6 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 #ifndef arch_enable_tagging_async
 #define arch_enable_tagging_async()
 #endif
-#ifndef arch_init_tags
-#define arch_init_tags(max_tag)
-#endif
 #ifndef arch_set_tagging_report_once
 #define arch_set_tagging_report_once(state)
 #endif
@@ -320,7 +308,6 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #define hw_enable_tagging_sync()		arch_enable_tagging_sync()
 #define hw_enable_tagging_async()		arch_enable_tagging_async()
-#define hw_init_tags(max_tag)			arch_init_tags(max_tag)
 #define hw_set_tagging_report_once(state)	arch_set_tagging_report_once(state)
 #define hw_force_async_tag_fault()		arch_force_async_tag_fault()
 #define hw_get_random_tag()			arch_get_random_tag()
-- 
GitLab


From e1f9490c81a4ba5945bd36f9f617b552c5926708 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Wed, 14 Jul 2021 15:38:43 +0100
Subject: [PATCH 3759/4878] UPSTREAM: arm64: kasan: mte: remove redundant
 mte_report_once logic

We have special logic to suppress MTE tag check fault reporting, based
on a global `mte_report_once` and `reported` variables. These can be
used to suppress calling kasan_report() when taking a tag check fault,
but do not prevent taking the fault in the first place, nor does they
affect the way we disable tag checks upon taking a fault.

The core KASAN code already defaults to reporting a single fault, and
has a `multi_shot` control to permit reporting multiple faults. The only
place we transiently alter `mte_report_once` is in lib/test_kasan.c,
where we also the `multi_shot` state as the same time. Thus
`mte_report_once` and `reported` are redundant, and can be removed.

When a tag check fault is taken, tag checking will be disabled by
`do_tag_recovery` and must be explicitly re-enabled if desired. The test
code does this by calling kasan_enable_tagging_sync().

This patch removes the redundant mte_report_once() logic and associated
variables.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20210714143843.56537-4-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 767215030150d9d01ff65fbc1c5dff515ffdcfe3)
Bug: 217222520
Change-Id: Ibfd99f35874670a925a1b53a8e0c42604cdc08f4
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/memory.h    |  1 -
 arch/arm64/include/asm/mte-kasan.h | 12 ------------
 arch/arm64/kernel/mte.c            | 12 ------------
 arch/arm64/mm/fault.c              | 15 +--------------
 lib/test_kasan.c                   |  2 --
 mm/kasan/hw_tags.c                 |  6 ------
 mm/kasan/kasan.h                   |  7 -------
 7 files changed, 1 insertion(+), 54 deletions(-)

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index b864fdb79df0c..0bda07b04f7fc 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -234,7 +234,6 @@ static inline const void *__tag_set(const void *addr, u8 tag)
 #ifdef CONFIG_KASAN_HW_TAGS
 #define arch_enable_tagging_sync()		mte_enable_kernel_sync()
 #define arch_enable_tagging_async()		mte_enable_kernel_async()
-#define arch_set_tagging_report_once(state)	mte_set_report_once(state)
 #define arch_force_async_tag_fault()		mte_check_tfsr_exit()
 #define arch_get_random_tag()			mte_get_random_tag()
 #define arch_get_mem_tag(addr)			mte_get_mem_tag(addr)
diff --git a/arch/arm64/include/asm/mte-kasan.h b/arch/arm64/include/asm/mte-kasan.h
index 41c48c1ba6108..26e013e540ae2 100644
--- a/arch/arm64/include/asm/mte-kasan.h
+++ b/arch/arm64/include/asm/mte-kasan.h
@@ -133,9 +133,6 @@ static inline void mte_set_mem_tag_range(void *addr, size_t size, u8 tag,
 void mte_enable_kernel_sync(void);
 void mte_enable_kernel_async(void);
 
-void mte_set_report_once(bool state);
-bool mte_report_once(void);
-
 #else /* CONFIG_ARM64_MTE */
 
 static inline u8 mte_get_ptr_tag(void *ptr)
@@ -166,15 +163,6 @@ static inline void mte_enable_kernel_async(void)
 {
 }
 
-static inline void mte_set_report_once(bool state)
-{
-}
-
-static inline bool mte_report_once(void)
-{
-	return false;
-}
-
 #endif /* CONFIG_ARM64_MTE */
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index bf7b936f888cf..e5e801bc53122 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -23,8 +23,6 @@
 #include <asm/ptrace.h>
 #include <asm/sysreg.h>
 
-static bool report_fault_once = true;
-
 static DEFINE_PER_CPU_READ_MOSTLY(u64, mte_tcf_preferred);
 
 #ifdef CONFIG_KASAN_HW_TAGS
@@ -141,16 +139,6 @@ void mte_enable_kernel_async(void)
 }
 #endif
 
-void mte_set_report_once(bool state)
-{
-	WRITE_ONCE(report_fault_once, state);
-}
-
-bool mte_report_once(void)
-{
-	return READ_ONCE(report_fault_once);
-}
-
 #ifdef CONFIG_KASAN_HW_TAGS
 void mte_check_tfsr_el1(void)
 {
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 37806735f7224..540ef3cd0a36a 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -306,24 +306,11 @@ static void die_kernel_fault(const char *msg, unsigned long addr,
 static void report_tag_fault(unsigned long addr, unsigned int esr,
 			     struct pt_regs *regs)
 {
-	static bool reported;
-	bool is_write;
-
-	if (READ_ONCE(reported))
-		return;
-
-	/*
-	 * This is used for KASAN tests and assumes that no MTE faults
-	 * happened before running the tests.
-	 */
-	if (mte_report_once())
-		WRITE_ONCE(reported, true);
-
 	/*
 	 * SAS bits aren't set for all faults reported in EL1, so we can't
 	 * find out access size.
 	 */
-	is_write = !!(esr & ESR_ELx_WNR);
+	bool is_write = !!(esr & ESR_ELx_WNR);
 	kasan_report(addr, 0, is_write, regs->pc);
 }
 #else
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 44e08f4d9c520..506772e182abd 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -53,7 +53,6 @@ static int kasan_test_init(struct kunit *test)
 	}
 
 	multishot = kasan_save_enable_multi_shot();
-	kasan_set_tagging_report_once(false);
 	fail_data.report_found = false;
 	kunit_add_named_resource(test, NULL, NULL, &resource,
 					"kasan_data", &fail_data);
@@ -62,7 +61,6 @@ static int kasan_test_init(struct kunit *test)
 
 static void kasan_test_exit(struct kunit *test)
 {
-	kasan_set_tagging_report_once(true);
 	kasan_restore_multi_shot(multishot);
 	KUNIT_EXPECT_FALSE(test, fail_data.report_found);
 }
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 2c6c6c6ddfa26..e4c16f6b6680e 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -248,12 +248,6 @@ void kasan_free_pages(struct page *page, unsigned int order)
 
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
-void kasan_set_tagging_report_once(bool state)
-{
-	hw_set_tagging_report_once(state);
-}
-EXPORT_SYMBOL_GPL(kasan_set_tagging_report_once);
-
 void kasan_enable_tagging_sync(void)
 {
 	hw_enable_tagging_sync();
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 0eaca2a86282e..4af47d87aa285 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -290,9 +290,6 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 #ifndef arch_enable_tagging_async
 #define arch_enable_tagging_async()
 #endif
-#ifndef arch_set_tagging_report_once
-#define arch_set_tagging_report_once(state)
-#endif
 #ifndef arch_force_async_tag_fault
 #define arch_force_async_tag_fault()
 #endif
@@ -308,7 +305,6 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #define hw_enable_tagging_sync()		arch_enable_tagging_sync()
 #define hw_enable_tagging_async()		arch_enable_tagging_async()
-#define hw_set_tagging_report_once(state)	arch_set_tagging_report_once(state)
 #define hw_force_async_tag_fault()		arch_force_async_tag_fault()
 #define hw_get_random_tag()			arch_get_random_tag()
 #define hw_get_mem_tag(addr)			arch_get_mem_tag(addr)
@@ -319,19 +315,16 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #define hw_enable_tagging_sync()
 #define hw_enable_tagging_async()
-#define hw_set_tagging_report_once(state)
 
 #endif /* CONFIG_KASAN_HW_TAGS */
 
 #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
-void kasan_set_tagging_report_once(bool state);
 void kasan_enable_tagging_sync(void);
 void kasan_force_async_fault(void);
 
 #else /* CONFIG_KASAN_HW_TAGS || CONFIG_KASAN_KUNIT_TEST */
 
-static inline void kasan_set_tagging_report_once(bool state) { }
 static inline void kasan_enable_tagging_sync(void) { }
 static inline void kasan_force_async_fault(void) { }
 
-- 
GitLab


From 86921e5689a89bccb22853a98e4ed89ba942df63 Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Fri, 13 Aug 2021 16:54:24 -0700
Subject: [PATCH 3760/4878] UPSTREAM: kasan, kmemleak: reset tags when scanning
 block

Patch series "kasan, slub: reset tag when printing address", v3.

With hardware tag-based kasan enabled, we reset the tag when we access
metadata to avoid from false alarm.

This patch (of 2):

Kmemleak needs to scan kernel memory to check memory leak.  With hardware
tag-based kasan enabled, when it scans on the invalid slab and
dereference, the issue will occur as below.

Hardware tag-based KASAN doesn't use compiler instrumentation, we can not
use kasan_disable_current() to ignore tag check.

Based on the below report, there are 11 0xf7 granules, which amounts to
176 bytes, and the object is allocated from the kmalloc-256 cache.  So
when kmemleak accesses the last 256-176 bytes, it causes faults, as those
are marked with KASAN_KMALLOC_REDZONE == KASAN_TAG_INVALID == 0xfe.

Thus, we reset tags before accessing metadata to avoid from false positives.

  BUG: KASAN: out-of-bounds in scan_block+0x58/0x170
  Read at addr f7ff0000c0074eb0 by task kmemleak/138
  Pointer tag: [f7], memory tag: [fe]

  CPU: 7 PID: 138 Comm: kmemleak Not tainted 5.14.0-rc2-00001-g8cae8cd89f05-dirty #134
  Hardware name: linux,dummy-virt (DT)
  Call trace:
   dump_backtrace+0x0/0x1b0
   show_stack+0x1c/0x30
   dump_stack_lvl+0x68/0x84
   print_address_description+0x7c/0x2b4
   kasan_report+0x138/0x38c
   __do_kernel_fault+0x190/0x1c4
   do_tag_check_fault+0x78/0x90
   do_mem_abort+0x44/0xb4
   el1_abort+0x40/0x60
   el1h_64_sync_handler+0xb4/0xd0
   el1h_64_sync+0x78/0x7c
   scan_block+0x58/0x170
   scan_gray_list+0xdc/0x1a0
   kmemleak_scan+0x2ac/0x560
   kmemleak_scan_thread+0xb0/0xe0
   kthread+0x154/0x160
   ret_from_fork+0x10/0x18

  Allocated by task 0:
   kasan_save_stack+0x2c/0x60
   __kasan_kmalloc+0xec/0x104
   __kmalloc+0x224/0x3c4
   __register_sysctl_paths+0x200/0x290
   register_sysctl_table+0x2c/0x40
   sysctl_init+0x20/0x34
   proc_sys_init+0x3c/0x48
   proc_root_init+0x80/0x9c
   start_kernel+0x648/0x6a4
   __primary_switched+0xc0/0xc8

  Freed by task 0:
   kasan_save_stack+0x2c/0x60
   kasan_set_track+0x2c/0x40
   kasan_set_free_info+0x44/0x54
   ____kasan_slab_free.constprop.0+0x150/0x1b0
   __kasan_slab_free+0x14/0x20
   slab_free_freelist_hook+0xa4/0x1fc
   kfree+0x1e8/0x30c
   put_fs_context+0x124/0x220
   vfs_kern_mount.part.0+0x60/0xd4
   kern_mount+0x24/0x4c
   bdev_cache_init+0x70/0x9c
   vfs_caches_init+0xdc/0xf4
   start_kernel+0x638/0x6a4
   __primary_switched+0xc0/0xc8

  The buggy address belongs to the object at ffff0000c0074e00
   which belongs to the cache kmalloc-256 of size 256
  The buggy address is located 176 bytes inside of
   256-byte region [ffff0000c0074e00, ffff0000c0074f00)
  The buggy address belongs to the page:
  page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100074
  head:(____ptrval____) order:2 compound_mapcount:0 compound_pincount:0
  flags: 0xbfffc0000010200(slab|head|node=0|zone=2|lastcpupid=0xffff|kasantag=0x0)
  raw: 0bfffc0000010200 0000000000000000 dead000000000122 f5ff0000c0002300
  raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
  page dumped because: kasan: bad access detected

  Memory state around the buggy address:
   ffff0000c0074c00: f0 f0 f0 f0 f0 f0 f0 f0 f0 fe fe fe fe fe fe fe
   ffff0000c0074d00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
  >ffff0000c0074e00: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 fe fe fe fe fe
                                                      ^
   ffff0000c0074f00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
   ffff0000c0075000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  ==================================================================
  Disabling lock debugging due to kernel taint
  kmemleak: 181 new suspected memory leaks (see /sys/kernel/debug/kmemleak)

Link: https://lkml.kernel.org/r/20210804090957.12393-1-Kuan-Ying.Lee@mediatek.com
Link: https://lkml.kernel.org/r/20210804090957.12393-2-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 6c7a00b843370feaf7710cef2350367c7e61cd1a)
Bug: 217222520
Change-Id: Id1a3764f60bf3df77d92a9db8e4ec9217ef1a582
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kmemleak.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index a910b181d493c..5edbe6a75561c 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -290,7 +290,7 @@ static void hex_dump_object(struct seq_file *seq,
 	warn_or_seq_printf(seq, "  hex dump (first %zu bytes):\n", len);
 	kasan_disable_current();
 	warn_or_seq_hex_dump(seq, DUMP_PREFIX_NONE, HEX_ROW_SIZE,
-			     HEX_GROUP_SIZE, ptr, len, HEX_ASCII);
+			     HEX_GROUP_SIZE, kasan_reset_tag((void *)ptr), len, HEX_ASCII);
 	kasan_enable_current();
 }
 
@@ -1171,7 +1171,7 @@ static bool update_checksum(struct kmemleak_object *object)
 
 	kasan_disable_current();
 	kcsan_disable_current();
-	object->checksum = crc32(0, (void *)object->pointer, object->size);
+	object->checksum = crc32(0, kasan_reset_tag((void *)object->pointer), object->size);
 	kasan_enable_current();
 	kcsan_enable_current();
 
@@ -1246,7 +1246,7 @@ static void scan_block(void *_start, void *_end,
 			break;
 
 		kasan_disable_current();
-		pointer = *ptr;
+		pointer = *(unsigned long *)kasan_reset_tag((void *)ptr);
 		kasan_enable_current();
 
 		untagged_ptr = (unsigned long)kasan_reset_tag((void *)pointer);
-- 
GitLab


From d74e65f80b666ceb103fa1138228439389897904 Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Thu, 2 Sep 2021 14:57:29 -0700
Subject: [PATCH 3761/4878] UPSTREAM: mm/kasan: move kasan.fault to
 mm/kasan/report.c

Move the boot parameter 'kasan.fault' from hw_tags.c to report.c, so it
can support all KASAN modes - generic, and both tag-based.

Link: https://lkml.kernel.org/r/20210713010536.3161822-1-woodylin@google.com
Signed-off-by: Woody Lin <woodylin@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit c9d1af2b780a7077d253047ccc81c5253cf0974a)
Bug: 217222520
Change-Id: I38d174630e2a9107613e51fe81bd101c4a8e27cd
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 13 ++++++----
 mm/kasan/hw_tags.c                | 43 -------------------------------
 mm/kasan/kasan.h                  |  1 -
 mm/kasan/report.c                 | 29 ++++++++++++++++++---
 4 files changed, 34 insertions(+), 52 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 83ec4a556c199..21dc03bc10a45 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -181,9 +181,16 @@ By default, KASAN prints a bug report only for the first invalid memory access.
 With ``kasan_multi_shot``, KASAN prints a report on every invalid access. This
 effectively disables ``panic_on_warn`` for KASAN reports.
 
+Alternatively, independent of ``panic_on_warn`` the ``kasan.fault=`` boot
+parameter can be used to control panic and reporting behaviour:
+
+- ``kasan.fault=report`` or ``=panic`` controls whether to only print a KASAN
+  report or also panic the kernel (default: ``report``). The panic happens even
+  if ``kasan_multi_shot`` is enabled.
+
 Hardware tag-based KASAN mode (see the section about various modes below) is
 intended for use in production as a security mitigation. Therefore, it supports
-boot parameters that allow disabling KASAN or controlling its features.
+additional boot parameters that allow disabling KASAN or controlling features:
 
 - ``kasan=off`` or ``=on`` controls whether KASAN is enabled (default: ``on``).
 
@@ -199,10 +206,6 @@ boot parameters that allow disabling KASAN or controlling its features.
 - ``kasan.stacktrace=off`` or ``=on`` disables or enables alloc and free stack
   traces collection (default: ``on``).
 
-- ``kasan.fault=report`` or ``=panic`` controls whether to only print a KASAN
-  report or also panic the kernel (default: ``report``). The panic happens even
-  if ``kasan_multi_shot`` is enabled.
-
 Implementation details
 ----------------------
 
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index e4c16f6b6680e..05d1e9460e2e3 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -37,16 +37,9 @@ enum kasan_arg_stacktrace {
 	KASAN_ARG_STACKTRACE_ON,
 };
 
-enum kasan_arg_fault {
-	KASAN_ARG_FAULT_DEFAULT,
-	KASAN_ARG_FAULT_REPORT,
-	KASAN_ARG_FAULT_PANIC,
-};
-
 static enum kasan_arg kasan_arg __ro_after_init;
 static enum kasan_arg_mode kasan_arg_mode __ro_after_init;
 static enum kasan_arg_stacktrace kasan_arg_stacktrace __ro_after_init;
-static enum kasan_arg_fault kasan_arg_fault __ro_after_init;
 
 /* Whether KASAN is enabled at all. */
 DEFINE_STATIC_KEY_FALSE(kasan_flag_enabled);
@@ -59,9 +52,6 @@ EXPORT_SYMBOL_GPL(kasan_flag_async);
 /* Whether to collect alloc/free stack traces. */
 DEFINE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
 
-/* Whether to panic or print a report and disable tag checking on fault. */
-bool kasan_flag_panic __ro_after_init;
-
 /* kasan=off/on */
 static int __init early_kasan_flag(char *arg)
 {
@@ -113,23 +103,6 @@ static int __init early_kasan_flag_stacktrace(char *arg)
 }
 early_param("kasan.stacktrace", early_kasan_flag_stacktrace);
 
-/* kasan.fault=report/panic */
-static int __init early_kasan_fault(char *arg)
-{
-	if (!arg)
-		return -EINVAL;
-
-	if (!strcmp(arg, "report"))
-		kasan_arg_fault = KASAN_ARG_FAULT_REPORT;
-	else if (!strcmp(arg, "panic"))
-		kasan_arg_fault = KASAN_ARG_FAULT_PANIC;
-	else
-		return -EINVAL;
-
-	return 0;
-}
-early_param("kasan.fault", early_kasan_fault);
-
 /* kasan_init_hw_tags_cpu() is called for each CPU. */
 void kasan_init_hw_tags_cpu(void)
 {
@@ -195,22 +168,6 @@ void __init kasan_init_hw_tags(void)
 		break;
 	}
 
-	switch (kasan_arg_fault) {
-	case KASAN_ARG_FAULT_DEFAULT:
-		/*
-		 * Default to no panic on report.
-		 * Do nothing, kasan_flag_panic keeps its default value.
-		 */
-		break;
-	case KASAN_ARG_FAULT_REPORT:
-		/* Do nothing, kasan_flag_panic keeps its default value. */
-		break;
-	case KASAN_ARG_FAULT_PANIC:
-		/* Enable panic on report. */
-		kasan_flag_panic = true;
-		break;
-	}
-
 	pr_info("KernelAddressSanitizer initialized\n");
 }
 
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 4af47d87aa285..15425e64edd2f 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -38,7 +38,6 @@ static inline bool kasan_async_mode_enabled(void)
 
 #endif
 
-extern bool kasan_flag_panic __ro_after_init;
 extern bool kasan_flag_async __ro_after_init;
 
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 8fff1825b22cd..884a950c70265 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -39,6 +39,31 @@ static unsigned long kasan_flags;
 #define KASAN_BIT_REPORTED	0
 #define KASAN_BIT_MULTI_SHOT	1
 
+enum kasan_arg_fault {
+	KASAN_ARG_FAULT_DEFAULT,
+	KASAN_ARG_FAULT_REPORT,
+	KASAN_ARG_FAULT_PANIC,
+};
+
+static enum kasan_arg_fault kasan_arg_fault __ro_after_init = KASAN_ARG_FAULT_DEFAULT;
+
+/* kasan.fault=report/panic */
+static int __init early_kasan_fault(char *arg)
+{
+	if (!arg)
+		return -EINVAL;
+
+	if (!strcmp(arg, "report"))
+		kasan_arg_fault = KASAN_ARG_FAULT_REPORT;
+	else if (!strcmp(arg, "panic"))
+		kasan_arg_fault = KASAN_ARG_FAULT_PANIC;
+	else
+		return -EINVAL;
+
+	return 0;
+}
+early_param("kasan.fault", early_kasan_fault);
+
 bool kasan_save_enable_multi_shot(void)
 {
 	return test_and_set_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags);
@@ -102,10 +127,8 @@ static void end_report(unsigned long *flags, unsigned long addr)
 		panic_on_warn = 0;
 		panic("panic_on_warn set ...\n");
 	}
-#ifdef CONFIG_KASAN_HW_TAGS
-	if (kasan_flag_panic)
+	if (kasan_arg_fault == KASAN_ARG_FAULT_PANIC)
 		panic("kasan.fault=panic set ...\n");
-#endif
 	kasan_enable_current();
 }
 
-- 
GitLab


From f443ee882a9ec8f0265b9e847a139bdbe31c02ae Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:32 -0700
Subject: [PATCH 3762/4878] UPSTREAM: kasan: test: rework kmalloc_oob_right

Patch series "kasan: test: avoid crashing the kernel with HW_TAGS", v2.

KASAN tests do out-of-bounds and use-after-free accesses.  Running the
tests works fine for the GENERIC mode, as it uses qurantine and redzones.
But the HW_TAGS mode uses neither, and running the tests might crash the
kernel.

Rework the tests to avoid corrupting kernel memory.

This patch (of 8):

Rework kmalloc_oob_right() to do these bad access checks:

1. An unaligned access one byte past the requested kmalloc size
   (can only be detected by KASAN_GENERIC).
2. An aligned access into the first out-of-bounds granule that falls
   within the aligned kmalloc object.
3. Out-of-bounds access past the aligned kmalloc object.

Test #3 deliberately uses a read access to avoid corrupting memory.
Otherwise, this test might lead to crashes with the HW_TAGS mode, as it
neither uses quarantine nor redzones.

Link: https://lkml.kernel.org/r/cover.1628779805.git.andreyknvl@gmail.com
Link: https://lkml.kernel.org/r/474aa8b7b538c6737a4c6d0090350af2e1776bef.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit ab512805710fa0e4ec6b61fee8a52d044a060009)
Bug: 217222520
Change-Id: Ifdde063e6112b4e9ae9b6f1c5317f37108f27896
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 506772e182abd..4bc9f9ec65308 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -124,12 +124,28 @@ static void kasan_test_exit(struct kunit *test)
 static void kmalloc_oob_right(struct kunit *test)
 {
 	char *ptr;
-	size_t size = 123;
+	size_t size = 128 - KASAN_GRANULE_SIZE - 5;
 
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size + OOB_TAG_OFF] = 'x');
+	/*
+	 * An unaligned access past the requested kmalloc size.
+	 * Only generic KASAN can precisely detect these.
+	 */
+	if (IS_ENABLED(CONFIG_KASAN_GENERIC))
+		KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 'x');
+
+	/*
+	 * An aligned access into the first out-of-bounds granule that falls
+	 * within the aligned kmalloc object.
+	 */
+	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size + 5] = 'y');
+
+	/* Out-of-bounds access past the aligned kmalloc object. */
+	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] =
+					ptr[size + KASAN_GRANULE_SIZE + 5]);
+
 	kfree(ptr);
 }
 
-- 
GitLab


From 5601277ff403de8e6bd49d6c8a2fe991300ffb51 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:35 -0700
Subject: [PATCH 3763/4878] UPSTREAM: kasan: test: avoid writing invalid memory

Multiple KASAN tests do writes past the allocated objects or writes to
freed memory.  Turn these writes into reads to avoid corrupting memory.
Otherwise, these tests might lead to crashes with the HW_TAGS mode, as it
neither uses quarantine nor redzones.

Link: https://lkml.kernel.org/r/c3cd2a383e757e27dd9131635fc7d09a48a49cf9.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 8fbad19bdcb4b9be8131536e5bb9616ab2e4eeb3)
Bug: 217222520
Change-Id: Ia9c33e9fe1b6908fbc4b629ea6718b1bb004dd78
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 4bc9f9ec65308..4dd6b11627a7d 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -169,7 +169,7 @@ static void kmalloc_node_oob_right(struct kunit *test)
 	ptr = kmalloc_node(size, GFP_KERNEL, 0);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 0);
+	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] = ptr[size]);
 	kfree(ptr);
 }
 
@@ -205,7 +205,7 @@ static void kmalloc_pagealloc_uaf(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 	kfree(ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] = 0);
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[0]);
 }
 
 static void kmalloc_pagealloc_invalid_free(struct kunit *test)
@@ -239,7 +239,7 @@ static void pagealloc_oob_right(struct kunit *test)
 	ptr = page_address(pages);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr[size] = 0);
+	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] = ptr[size]);
 	free_pages((unsigned long)ptr, order);
 }
 
@@ -254,7 +254,7 @@ static void pagealloc_uaf(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 	free_pages((unsigned long)ptr, order);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr[0] = 0);
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[0]);
 }
 
 static void kmalloc_large_oob_right(struct kunit *test)
@@ -516,7 +516,7 @@ static void kmalloc_uaf(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
 	kfree(ptr);
-	KUNIT_EXPECT_KASAN_FAIL(test, *(ptr + 8) = 'x');
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[8]);
 }
 
 static void kmalloc_uaf_memset(struct kunit *test)
@@ -555,7 +555,7 @@ again:
 		goto again;
 	}
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr1[40] = 'x');
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr1)[40]);
 	KUNIT_EXPECT_PTR_NE(test, ptr1, ptr2);
 
 	kfree(ptr2);
@@ -702,7 +702,7 @@ static void ksize_unpoisons_memory(struct kunit *test)
 	ptr[size] = 'x';
 
 	/* This one must. */
-	KUNIT_EXPECT_KASAN_FAIL(test, ptr[real_size] = 'y');
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[real_size]);
 
 	kfree(ptr);
 }
-- 
GitLab


From ea58b507895ff0bf26906cdfadab8ea55f77c3ec Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:38 -0700
Subject: [PATCH 3764/4878] UPSTREAM: kasan: test: avoid corrupting memory via
 memset

kmalloc_oob_memset_*() tests do writes past the allocated objects.  As the
result, they corrupt memory, which might lead to crashes with the HW_TAGS
mode, as it neither uses quarantine nor redzones.

Adjust the tests to only write memory within the aligned kmalloc objects.

Also add a comment mentioning that memset tests are designed to touch both
valid and invalid memory.

Link: https://lkml.kernel.org/r/64fd457668a16e7b58d094f14a165f9d5170c5a9.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 555999a009aacd90ea51a6690e8eb2a5d0427edc)
Bug: 217222520
Change-Id: If6066c8d7b1efa6f406d663fbeb33ee714467427
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 4dd6b11627a7d..37856dda94ab4 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -430,64 +430,70 @@ static void kmalloc_uaf_16(struct kunit *test)
 	kfree(ptr1);
 }
 
+/*
+ * Note: in the memset tests below, the written range touches both valid and
+ * invalid memory. This makes sure that the instrumentation does not only check
+ * the starting address but the whole range.
+ */
+
 static void kmalloc_oob_memset_2(struct kunit *test)
 {
 	char *ptr;
-	size_t size = 8;
+	size_t size = 128 - KASAN_GRANULE_SIZE;
 
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + 7 + OOB_TAG_OFF, 0, 2));
+	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 1, 0, 2));
 	kfree(ptr);
 }
 
 static void kmalloc_oob_memset_4(struct kunit *test)
 {
 	char *ptr;
-	size_t size = 8;
+	size_t size = 128 - KASAN_GRANULE_SIZE;
 
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + 5 + OOB_TAG_OFF, 0, 4));
+	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 3, 0, 4));
 	kfree(ptr);
 }
 
-
 static void kmalloc_oob_memset_8(struct kunit *test)
 {
 	char *ptr;
-	size_t size = 8;
+	size_t size = 128 - KASAN_GRANULE_SIZE;
 
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + 1 + OOB_TAG_OFF, 0, 8));
+	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 7, 0, 8));
 	kfree(ptr);
 }
 
 static void kmalloc_oob_memset_16(struct kunit *test)
 {
 	char *ptr;
-	size_t size = 16;
+	size_t size = 128 - KASAN_GRANULE_SIZE;
 
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + 1 + OOB_TAG_OFF, 0, 16));
+	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 15, 0, 16));
 	kfree(ptr);
 }
 
 static void kmalloc_oob_in_memset(struct kunit *test)
 {
 	char *ptr;
-	size_t size = 666;
+	size_t size = 128 - KASAN_GRANULE_SIZE;
 
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr, 0, size + 5 + OOB_TAG_OFF));
+	KUNIT_EXPECT_KASAN_FAIL(test,
+				memset(ptr, 0, size + KASAN_GRANULE_SIZE));
 	kfree(ptr);
 }
 
-- 
GitLab


From 8dced008739a5b20deb1f8db20feb4a0013a1dd4 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:41 -0700
Subject: [PATCH 3765/4878] UPSTREAM: kasan: test: disable
 kmalloc_memmove_invalid_size for HW_TAGS

The HW_TAGS mode doesn't check memmove for negative size.  As a result,
the kmalloc_memmove_invalid_size test corrupts memory, which can result in
a crash.

Disable this test with HW_TAGS KASAN.

Link: https://lkml.kernel.org/r/088733a06ac21eba29aa85b6f769d2abd74f9638.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 1b0668be62cfa394903bb368641c80533bf42d5a)
Bug: 217222520
Change-Id: I2de379591fbcd9878e3bed11b9e59ca4701179ba
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 37856dda94ab4..a34a1e2f5eca2 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -503,11 +503,17 @@ static void kmalloc_memmove_invalid_size(struct kunit *test)
 	size_t size = 64;
 	volatile size_t invalid_size = -2;
 
+	/*
+	 * Hardware tag-based mode doesn't check memmove for negative size.
+	 * As a result, this test introduces a side-effect memory corruption,
+	 * which can result in a crash.
+	 */
+	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_HW_TAGS);
+
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
 	memset((char *)ptr, 0, 64);
-
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		memmove((char *)ptr, (char *)ptr + 4, invalid_size));
 	kfree(ptr);
-- 
GitLab


From 35e82c919ed392ed2a00abd895eefd6a46c6a622 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:44 -0700
Subject: [PATCH 3766/4878] UPSTREAM: kasan: test: only do kmalloc_uaf_memset
 for generic mode

kmalloc_uaf_memset() writes to freed memory, which is only safe with the
GENERIC mode (as it uses quarantine).  For other modes, this test corrupts
kernel memory, which might result in a crash.

Only enable kmalloc_uaf_memset() for the GENERIC mode.

Link: https://lkml.kernel.org/r/2e1c87b607b1292556cde3cab2764f108542b60c.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 25b12a58e848459ae2dbf2e7d318ef168bd1c5e2)
Bug: 217222520
Change-Id: Ic062faf7573a9e0e3f456123e74d888a0a746d97
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index a34a1e2f5eca2..886fd6fa2668d 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -536,6 +536,12 @@ static void kmalloc_uaf_memset(struct kunit *test)
 	char *ptr;
 	size_t size = 33;
 
+	/*
+	 * Only generic KASAN uses quarantine, which is required to avoid a
+	 * kernel memory corruption this test causes.
+	 */
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);
+
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
-- 
GitLab


From 25d60dbd44bd397e01deb2a4ff0f56dfa348e366 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:47 -0700
Subject: [PATCH 3767/4878] UPSTREAM: kasan: test: clean up ksize_uaf

Some KASAN tests use global variables to store function returns values so
that the compiler doesn't optimize away these functions.

ksize_uaf() doesn't call any functions, so it doesn't need to use
kasan_int_result.  Use volatile accesses instead, to be consistent with
other similar tests.

Link: https://lkml.kernel.org/r/a1fc34faca4650f4a6e4dfb3f8d8d82c82eb953a.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit b38fcca339dbcf680c9e43054502608fabc81508)
Bug: 217222520
Change-Id: I0f020809edce3159aa49f6efd91997994170ac2f
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 886fd6fa2668d..02e58471f0786 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -739,8 +739,8 @@ static void ksize_uaf(struct kunit *test)
 	kfree(ptr);
 
 	KUNIT_EXPECT_KASAN_FAIL(test, ksize(ptr));
-	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = *ptr);
-	KUNIT_EXPECT_KASAN_FAIL(test, kasan_int_result = *(ptr + size));
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[0]);
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[size]);
 }
 
 static void kasan_stack_oob(struct kunit *test)
-- 
GitLab


From ef0ede5b6cd9c80b904231e47cdd60502ea37756 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 9 Apr 2021 13:27:41 -0700
Subject: [PATCH 3768/4878] UPSTREAM: lib/test_kasan_module.c: suppress unused
 var warning

Local `unused' is intentionally unused - it is there to suppress
__must_check warnings.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lkml.kernel.org/r/202104050216.HflRxfJm-lkp@intel.com
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit e156656717b810202914b77557de8112df4dad0d)
Bug: 217222520
Change-Id: I9b00947ee9a2a50e33669d8a9b3c47511ad993b6
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan_module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/test_kasan_module.c b/lib/test_kasan_module.c
index eee017ff89805..f1017f345d6cc 100644
--- a/lib/test_kasan_module.c
+++ b/lib/test_kasan_module.c
@@ -22,7 +22,7 @@ static noinline void __init copy_user_test(void)
 	char *kmem;
 	char __user *usermem;
 	size_t size = 10;
-	int unused;
+	int __maybe_unused unused;
 
 	kmem = kmalloc(size, GFP_KERNEL);
 	if (!kmem)
-- 
GitLab


From 78434e33972ae342fa4fa1004f6d7214d3a175b0 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:50 -0700
Subject: [PATCH 3769/4878] UPSTREAM: kasan: test: avoid corrupting memory in
 copy_user_test

copy_user_test() does writes past the allocated object.  As the result, it
corrupts kernel memory, which might lead to crashes with the HW_TAGS mode,
as it neither uses quarantine nor redzones.

(Technically, this test can't yet be enabled with the HW_TAGS mode, but
this will be implemented in the future.)

Adjust the test to only write memory within the aligned kmalloc object.

Link: https://lkml.kernel.org/r/19bf3a5112ee65b7db88dc731643b657b816c5e8.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 756e5a47a5ddf0caa3708f922385a92af9d330b5)
Bug: 217222520
Change-Id: Ibff06edb269518e2f32e0f4bea74831d57255590
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan_module.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/lib/test_kasan_module.c b/lib/test_kasan_module.c
index f1017f345d6cc..fa73b9df0be40 100644
--- a/lib/test_kasan_module.c
+++ b/lib/test_kasan_module.c
@@ -15,13 +15,11 @@
 
 #include "../mm/kasan/kasan.h"
 
-#define OOB_TAG_OFF (IS_ENABLED(CONFIG_KASAN_GENERIC) ? 0 : KASAN_GRANULE_SIZE)
-
 static noinline void __init copy_user_test(void)
 {
 	char *kmem;
 	char __user *usermem;
-	size_t size = 10;
+	size_t size = 128 - KASAN_GRANULE_SIZE;
 	int __maybe_unused unused;
 
 	kmem = kmalloc(size, GFP_KERNEL);
@@ -38,25 +36,25 @@ static noinline void __init copy_user_test(void)
 	}
 
 	pr_info("out-of-bounds in copy_from_user()\n");
-	unused = copy_from_user(kmem, usermem, size + 1 + OOB_TAG_OFF);
+	unused = copy_from_user(kmem, usermem, size + 1);
 
 	pr_info("out-of-bounds in copy_to_user()\n");
-	unused = copy_to_user(usermem, kmem, size + 1 + OOB_TAG_OFF);
+	unused = copy_to_user(usermem, kmem, size + 1);
 
 	pr_info("out-of-bounds in __copy_from_user()\n");
-	unused = __copy_from_user(kmem, usermem, size + 1 + OOB_TAG_OFF);
+	unused = __copy_from_user(kmem, usermem, size + 1);
 
 	pr_info("out-of-bounds in __copy_to_user()\n");
-	unused = __copy_to_user(usermem, kmem, size + 1 + OOB_TAG_OFF);
+	unused = __copy_to_user(usermem, kmem, size + 1);
 
 	pr_info("out-of-bounds in __copy_from_user_inatomic()\n");
-	unused = __copy_from_user_inatomic(kmem, usermem, size + 1 + OOB_TAG_OFF);
+	unused = __copy_from_user_inatomic(kmem, usermem, size + 1);
 
 	pr_info("out-of-bounds in __copy_to_user_inatomic()\n");
-	unused = __copy_to_user_inatomic(usermem, kmem, size + 1 + OOB_TAG_OFF);
+	unused = __copy_to_user_inatomic(usermem, kmem, size + 1);
 
 	pr_info("out-of-bounds in strncpy_from_user()\n");
-	unused = strncpy_from_user(kmem, usermem, size + 1 + OOB_TAG_OFF);
+	unused = strncpy_from_user(kmem, usermem, size + 1);
 
 	vm_munmap((unsigned long)usermem, PAGE_SIZE);
 	kfree(kmem);
-- 
GitLab


From 73a526b100f93cb77ef03142501fe8feec41a25e Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@gmail.com>
Date: Thu, 2 Sep 2021 14:57:53 -0700
Subject: [PATCH 3770/4878] UPSTREAM: kasan: test: avoid corrupting memory in
 kasan_rcu_uaf

kasan_rcu_uaf() writes to freed memory via kasan_rcu_reclaim(), which is
only safe with the GENERIC mode (as it uses quarantine).  For other modes,
this test corrupts kernel memory, which might result in a crash.

Turn the write into a read.

Link: https://lkml.kernel.org/r/b6f2c3bf712d2457c783fa59498225b66a634f62.1628779805.git.andreyknvl@gmail.com
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f16de0bcdb55bf18e2533ca625f3e4b4952f254c)
Bug: 217222520
Change-Id: Ifcec3562271b04181a72e1362387de4975f49efb
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan_module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/test_kasan_module.c b/lib/test_kasan_module.c
index fa73b9df0be40..7ebf433edef3b 100644
--- a/lib/test_kasan_module.c
+++ b/lib/test_kasan_module.c
@@ -71,7 +71,7 @@ static noinline void __init kasan_rcu_reclaim(struct rcu_head *rp)
 						struct kasan_rcu_info, rcu);
 
 	kfree(fp);
-	fp->i = 1;
+	((volatile struct kasan_rcu_info *)fp)->i;
 }
 
 static noinline void __init kasan_rcu_uaf(void)
-- 
GitLab


From 600102be9e289ea5881f2a0e6dbf6fac6f54a300 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 24 Sep 2021 15:43:23 -0700
Subject: [PATCH 3771/4878] UPSTREAM: kasan: fix Kconfig check of
 CC_HAS_WORKING_NOSANITIZE_ADDRESS

In the main KASAN config option CC_HAS_WORKING_NOSANITIZE_ADDRESS is
checked for instrumentation-based modes.  However, if
HAVE_ARCH_KASAN_HW_TAGS is true all modes may still be selected.

To fix, also make the software modes depend on
CC_HAS_WORKING_NOSANITIZE_ADDRESS.

Link: https://lkml.kernel.org/r/20210910084240.1215803-1-elver@google.com
Fixes: 6a63a63ff1ac ("kasan: introduce CONFIG_KASAN_HW_TAGS")
Signed-off-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Aleksandr Nogikh <nogikh@google.com>
Cc: Taras Madan <tarasmadan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit fa360beac4b62d54879a88b182afef4b369c9700)
Bug: 217222520
Change-Id: I0bea75ce1317cff3401e5fcb197fd07041b219f8
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/Kconfig.kasan | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index b668d854531de..dd640b34ecdee 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -66,6 +66,7 @@ choice
 config KASAN_GENERIC
 	bool "Generic mode"
 	depends on HAVE_ARCH_KASAN && CC_HAS_KASAN_GENERIC
+	depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS
 	select SLUB_DEBUG if SLUB
 	select CONSTRUCTORS
 	help
@@ -86,6 +87,7 @@ config KASAN_GENERIC
 config KASAN_SW_TAGS
 	bool "Software tag-based mode"
 	depends on HAVE_ARCH_KASAN_SW_TAGS && CC_HAS_KASAN_SW_TAGS
+	depends on CC_HAS_WORKING_NOSANITIZE_ADDRESS
 	select SLUB_DEBUG if SLUB
 	select CONSTRUCTORS
 	help
-- 
GitLab


From 9f94c4bd2c57e79adadc292fc8797f7f9a9aebdf Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Thu, 23 Sep 2021 18:06:55 -0700
Subject: [PATCH 3772/4878] UPSTREAM: arm64: kasan: mte: move GCR_EL1 switch to
 task switch when KASAN disabled

It is not necessary to write to GCR_EL1 on every kernel entry and
exit when HW tag-based KASAN is disabled because the kernel will not
execute any IRG instructions in that mode. Since accessing GCR_EL1
can be expensive on some microarchitectures, avoid doing so by moving
the access to task switch when HW tag-based KASAN is disabled.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://linux-review.googlesource.com/id/I78e90d60612a94c24344526f476ac4ff216e10d2
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210924010655.2886918-1-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit e5af50a5df571c1d0268b02f924de49b742c990f)
Bug: 217222520
Change-Id: I0588695d88fa2a530d56ee190700802d3df46e40
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/entry.S | 10 +++++-----
 arch/arm64/kernel/mte.c   | 26 ++++++++++++++++++++++++++
 include/linux/kasan.h     |  9 +++++++--
 3 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 4223876203808..2dd31309f7e68 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -193,9 +193,9 @@ alternative_else_nop_endif
 
 	.macro mte_set_kernel_gcr, tmp, tmp2
 #ifdef CONFIG_KASAN_HW_TAGS
-alternative_if_not ARM64_MTE
+alternative_cb	kasan_hw_tags_enable
 	b	1f
-alternative_else_nop_endif
+alternative_cb_end
 	mov	\tmp, KERNEL_GCR_EL1
 	msr_s	SYS_GCR_EL1, \tmp
 1:
@@ -203,10 +203,10 @@ alternative_else_nop_endif
 	.endm
 
 	.macro mte_set_user_gcr, tsk, tmp, tmp2
-#ifdef CONFIG_ARM64_MTE
-alternative_if_not ARM64_MTE
+#ifdef CONFIG_KASAN_HW_TAGS
+alternative_cb	kasan_hw_tags_enable
 	b	1f
-alternative_else_nop_endif
+alternative_cb_end
 	ldr	\tmp, [\tsk, #THREAD_MTE_CTRL]
 
 	mte_set_gcr \tmp, \tmp2
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index e5e801bc53122..0cdae086966e8 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -179,6 +179,30 @@ static void mte_update_sctlr_user(struct task_struct *task)
 	task->thread.sctlr_user = sctlr;
 }
 
+static void mte_update_gcr_excl(struct task_struct *task)
+{
+	/*
+	 * SYS_GCR_EL1 will be set to current->thread.mte_ctrl value by
+	 * mte_set_user_gcr() in kernel_exit, but only if KASAN is enabled.
+	 */
+	if (kasan_hw_tags_enabled())
+		return;
+
+	write_sysreg_s(
+		((task->thread.mte_ctrl >> MTE_CTRL_GCR_USER_EXCL_SHIFT) &
+		 SYS_GCR_EL1_EXCL_MASK) | SYS_GCR_EL1_RRND,
+		SYS_GCR_EL1);
+}
+
+void __init kasan_hw_tags_enable(struct alt_instr *alt, __le32 *origptr,
+				 __le32 *updptr, int nr_inst)
+{
+	BUG_ON(nr_inst != 1); /* Branch -> NOP */
+
+	if (kasan_hw_tags_enabled())
+		*updptr = cpu_to_le32(aarch64_insn_gen_nop());
+}
+
 void mte_thread_init_user(void)
 {
 	if (!system_supports_mte())
@@ -198,6 +222,7 @@ void mte_thread_switch(struct task_struct *next)
 		return;
 
 	mte_update_sctlr_user(next);
+	mte_update_gcr_excl(next);
 
 	/*
 	 * Check if an async tag exception occurred at EL1.
@@ -243,6 +268,7 @@ long set_mte_ctrl(struct task_struct *task, unsigned long arg)
 	if (task == current) {
 		preempt_disable();
 		mte_update_sctlr_user(task);
+		mte_update_gcr_excl(task);
 		update_sctlr_el1(task->thread.sctlr_user);
 		preempt_enable();
 	}
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 2b14a22898953..6530996861ff9 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -89,7 +89,7 @@ static __always_inline bool kasan_enabled(void)
 	return static_branch_likely(&kasan_flag_enabled);
 }
 
-static inline bool kasan_has_integrated_init(void)
+static inline bool kasan_hw_tags_enabled(void)
 {
 	return kasan_enabled();
 }
@@ -104,7 +104,7 @@ static inline bool kasan_enabled(void)
 	return IS_ENABLED(CONFIG_KASAN);
 }
 
-static inline bool kasan_has_integrated_init(void)
+static inline bool kasan_hw_tags_enabled(void)
 {
 	return false;
 }
@@ -125,6 +125,11 @@ static __always_inline void kasan_free_pages(struct page *page,
 
 #endif /* CONFIG_KASAN_HW_TAGS */
 
+static inline bool kasan_has_integrated_init(void)
+{
+	return kasan_hw_tags_enabled();
+}
+
 #ifdef CONFIG_KASAN
 
 struct kasan_cache {
-- 
GitLab


From f0ad6895fa3c1e6c93192d3ff79e994c002e47e9 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Fri, 24 Sep 2021 15:44:00 -0700
Subject: [PATCH 3773/4878] UPSTREAM: kasan: always respect CONFIG_KASAN_STACK

Currently, the asan-stack parameter is only passed along if
CFLAGS_KASAN_SHADOW is not empty, which requires KASAN_SHADOW_OFFSET to
be defined in Kconfig so that the value can be checked.  In RISC-V's
case, KASAN_SHADOW_OFFSET is not defined in Kconfig, which means that
asan-stack does not get disabled with clang even when CONFIG_KASAN_STACK
is disabled, resulting in large stack warnings with allmodconfig:

  drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c:117:12: error: stack frame size (14400) exceeds limit (2048) in function 'lb035q02_connect' [-Werror,-Wframe-larger-than]
  static int lb035q02_connect(struct omap_dss_device *dssdev)
             ^
  1 error generated.

Ensure that the value of CONFIG_KASAN_STACK is always passed along to
the compiler so that these warnings do not happen when
CONFIG_KASAN_STACK is disabled.

Link: https://github.com/ClangBuiltLinux/linux/issues/1453
References: 6baec880d7a5 ("kasan: turn off asan-stack for clang-8 and earlier")
Link: https://lkml.kernel.org/r/20210922205525.570068-1-nathan@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 19532869feb9b0a97d17ddc14609d1e53a5b60db)
Bug: 217222520
Change-Id: If17fb2b15bae6d54a9fc468d83fdc8325d525159
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 scripts/Makefile.kasan | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 801c415bac59d..b9e94c5e70970 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -33,10 +33,11 @@ else
 	CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
 	 $(call cc-param,asan-globals=1) \
 	 $(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
-	 $(call cc-param,asan-stack=$(stack_enable)) \
 	 $(call cc-param,asan-instrument-allocas=1)
 endif
 
+CFLAGS_KASAN += $(call cc-param,asan-stack=$(stack_enable))
+
 endif # CONFIG_KASAN_GENERIC
 
 ifdef CONFIG_KASAN_SW_TAGS
-- 
GitLab


From 13ceaa708a39db4bd2a6ee659cbf2f84fb4c7876 Mon Sep 17 00:00:00 2001
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: Wed, 6 Oct 2021 16:47:47 +0100
Subject: [PATCH 3774/4878] UPSTREAM: kasan: Remove duplicate of
 kasan_flag_async

After merging async mode for KASAN_HW_TAGS a duplicate of the
kasan_flag_async flag was left erroneously inside the code.

Remove the duplicate.

Note: This change does not bring functional changes to the code
base.

Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20211006154751.4463-2-vincenzo.frascino@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit f5627ec1ff2cd91920abe0023e878eb872623ac3)
Bug: 217221156
Change-Id: Ic633e243e2a42bb964dcaf0fc56c865212570934
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/kasan.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 15425e64edd2f..3561a9d5ae32c 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -38,8 +38,6 @@ static inline bool kasan_async_mode_enabled(void)
 
 #endif
 
-extern bool kasan_flag_async __ro_after_init;
-
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
 #define KASAN_GRANULE_SIZE	(1UL << KASAN_SHADOW_SCALE_SHIFT)
 #else
-- 
GitLab


From 8b57cf5d733cce6a7fcb2d1f311cbd46c3857143 Mon Sep 17 00:00:00 2001
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: Wed, 6 Oct 2021 16:47:48 +0100
Subject: [PATCH 3775/4878] UPSTREAM: arm64: mte: Bitfield definitions for
 Asymm MTE

Add Asymmetric Memory Tagging Extension bitfield definitions.

Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20211006154751.4463-3-vincenzo.frascino@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit ba1a98e8b1720f7a78154e0020c77dbc2b34d0ce)
Bug: 217221156
Change-Id: I86d42972a40ce5595ae1debc506e88f012dd470e
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/sysreg.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 47520dc3cf458..f4059ef20db2a 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -611,6 +611,7 @@
 #define SCTLR_ELx_TCF_NONE	(UL(0x0) << SCTLR_ELx_TCF_SHIFT)
 #define SCTLR_ELx_TCF_SYNC	(UL(0x1) << SCTLR_ELx_TCF_SHIFT)
 #define SCTLR_ELx_TCF_ASYNC	(UL(0x2) << SCTLR_ELx_TCF_SHIFT)
+#define SCTLR_ELx_TCF_ASYMM	(UL(0x3) << SCTLR_ELx_TCF_SHIFT)
 #define SCTLR_ELx_TCF_MASK	(UL(0x3) << SCTLR_ELx_TCF_SHIFT)
 
 #define SCTLR_ELx_ENIA_SHIFT	31
@@ -655,6 +656,7 @@
 #define SCTLR_EL1_TCF0_NONE	(UL(0x0) << SCTLR_EL1_TCF0_SHIFT)
 #define SCTLR_EL1_TCF0_SYNC	(UL(0x1) << SCTLR_EL1_TCF0_SHIFT)
 #define SCTLR_EL1_TCF0_ASYNC	(UL(0x2) << SCTLR_EL1_TCF0_SHIFT)
+#define SCTLR_EL1_TCF0_ASYMM	(UL(0x3) << SCTLR_EL1_TCF0_SHIFT)
 #define SCTLR_EL1_TCF0_MASK	(UL(0x3) << SCTLR_EL1_TCF0_SHIFT)
 
 #define SCTLR_EL1_BT1		(BIT(36))
@@ -800,6 +802,7 @@
 #define ID_AA64PFR1_MTE_NI		0x0
 #define ID_AA64PFR1_MTE_EL0		0x1
 #define ID_AA64PFR1_MTE			0x2
+#define ID_AA64PFR1_MTE_ASYMM		0x3
 
 /* id_aa64zfr0 */
 #define ID_AA64ZFR0_F64MM_SHIFT		56
-- 
GitLab


From 5af22c1509b17eec61895b54f7cca278c92369fa Mon Sep 17 00:00:00 2001
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: Wed, 6 Oct 2021 16:47:49 +0100
Subject: [PATCH 3776/4878] BACKPORT: arm64: mte: CPU feature detection for
 Asymm MTE

(Backport: put the new capability into arch/arm64/include/asm/cpucaps.h,
 as arch/arm64/tools/cpucaps doesn't exist in 5.10.)

Add the cpufeature entries to detect the presence of Asymmetric MTE.

Note: The tag checking mode is initialized via cpu_enable_mte() ->
kasan_init_hw_tags() hence to enable it we require asymmetric mode
to be at least on the boot CPU. If the boot CPU does not have it, it is
fine for late CPUs to have it as long as the feature is not enabled
(ARM64_CPUCAP_BOOT_CPU_FEATURE).

Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Suzuki K Poulose <Suzuki.Poulose@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211006154751.4463-4-vincenzo.frascino@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit d73c162e073376dd207d716cb4b9cfc809be7e80)
Bug: 217221156
Change-Id: Iea428957526159646f0381a092370308ea90c267
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/cpucaps.h |  1 +
 arch/arm64/kernel/cpufeature.c   | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index c0ff1d4bccabb..4426686cd83db 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -70,6 +70,7 @@
 #define ARM64_HAS_LDAPR				59
 #define ARM64_KVM_PROTECTED_MODE		60
 #define ARM64_WORKAROUND_TSB_FLUSH_FAILURE	61
+#define ARM64_MTE_ASYMM				62
 
 /* kabi: reserve 62 - 76 for future cpu capabilities */
 #define ARM64_NCAPS				76
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 0eb94944d6396..3de010e8c5475 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2292,6 +2292,16 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
 		.sign = FTR_UNSIGNED,
 		.cpu_enable = cpu_enable_mte,
 	},
+	{
+		.desc = "Asymmetric MTE Tag Check Fault",
+		.capability = ARM64_MTE_ASYMM,
+		.type = ARM64_CPUCAP_BOOT_CPU_FEATURE,
+		.matches = has_cpuid_feature,
+		.sys_reg = SYS_ID_AA64PFR1_EL1,
+		.field_pos = ID_AA64PFR1_MTE_SHIFT,
+		.min_field_value = ID_AA64PFR1_MTE_ASYMM,
+		.sign = FTR_UNSIGNED,
+	},
 #endif /* CONFIG_ARM64_MTE */
 	{
 		.desc = "RCpc load-acquire (LDAPR)",
-- 
GitLab


From d7824547d1f6f373955908f82be40e7b2c231f33 Mon Sep 17 00:00:00 2001
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: Wed, 6 Oct 2021 16:47:50 +0100
Subject: [PATCH 3777/4878] UPSTREAM: arm64: mte: Add asymmetric mode support

MTE provides an asymmetric mode for detecting tag exceptions. In
particular, when such a mode is present, the CPU triggers a fault
on a tag mismatch during a load operation and asynchronously updates
a register when a tag mismatch is detected during a store operation.

Add support for MTE asymmetric mode.

Note: If the CPU does not support MTE asymmetric mode the kernel falls
back on synchronous mode which is the default for kasan=on.

Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20211006154751.4463-5-vincenzo.frascino@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit ec0288369f0cc6d85837a18f1c4c65451c94477b)
Bug: 217221156
Change-Id: I6ed463f3df90f7cb5fb7ac11bbb6345a0770d7fc
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/memory.h    |  1 +
 arch/arm64/include/asm/mte-kasan.h |  5 ++++
 arch/arm64/include/asm/mte.h       |  8 +++---
 arch/arm64/include/asm/uaccess.h   |  4 +--
 arch/arm64/kernel/mte.c            | 41 +++++++++++++++++++++++++-----
 5 files changed, 47 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 0bda07b04f7fc..0fc40a2860333 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -234,6 +234,7 @@ static inline const void *__tag_set(const void *addr, u8 tag)
 #ifdef CONFIG_KASAN_HW_TAGS
 #define arch_enable_tagging_sync()		mte_enable_kernel_sync()
 #define arch_enable_tagging_async()		mte_enable_kernel_async()
+#define arch_enable_tagging_asymm()		mte_enable_kernel_asymm()
 #define arch_force_async_tag_fault()		mte_check_tfsr_exit()
 #define arch_get_random_tag()			mte_get_random_tag()
 #define arch_get_mem_tag(addr)			mte_get_mem_tag(addr)
diff --git a/arch/arm64/include/asm/mte-kasan.h b/arch/arm64/include/asm/mte-kasan.h
index 26e013e540ae2..e4704a403237e 100644
--- a/arch/arm64/include/asm/mte-kasan.h
+++ b/arch/arm64/include/asm/mte-kasan.h
@@ -132,6 +132,7 @@ static inline void mte_set_mem_tag_range(void *addr, size_t size, u8 tag,
 
 void mte_enable_kernel_sync(void);
 void mte_enable_kernel_async(void);
+void mte_enable_kernel_asymm(void);
 
 #else /* CONFIG_ARM64_MTE */
 
@@ -163,6 +164,10 @@ static inline void mte_enable_kernel_async(void)
 {
 }
 
+static inline void mte_enable_kernel_asymm(void)
+{
+}
+
 #endif /* CONFIG_ARM64_MTE */
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/arm64/include/asm/mte.h b/arch/arm64/include/asm/mte.h
index 02511650cffe5..075539f5f1c88 100644
--- a/arch/arm64/include/asm/mte.h
+++ b/arch/arm64/include/asm/mte.h
@@ -88,11 +88,11 @@ static inline int mte_ptrace_copy_tags(struct task_struct *child,
 
 #ifdef CONFIG_KASAN_HW_TAGS
 /* Whether the MTE asynchronous mode is enabled. */
-DECLARE_STATIC_KEY_FALSE(mte_async_mode);
+DECLARE_STATIC_KEY_FALSE(mte_async_or_asymm_mode);
 
-static inline bool system_uses_mte_async_mode(void)
+static inline bool system_uses_mte_async_or_asymm_mode(void)
 {
-	return static_branch_unlikely(&mte_async_mode);
+	return static_branch_unlikely(&mte_async_or_asymm_mode);
 }
 
 void mte_check_tfsr_el1(void);
@@ -121,7 +121,7 @@ static inline void mte_check_tfsr_exit(void)
 	mte_check_tfsr_el1();
 }
 #else
-static inline bool system_uses_mte_async_mode(void)
+static inline bool system_uses_mte_async_or_asymm_mode(void)
 {
 	return false;
 }
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h
index 5d0111a61cf44..e4a69f5708e83 100644
--- a/arch/arm64/include/asm/uaccess.h
+++ b/arch/arm64/include/asm/uaccess.h
@@ -239,13 +239,13 @@ static inline void __uaccess_enable_tco(void)
  */
 static inline void __uaccess_disable_tco_async(void)
 {
-	if (system_uses_mte_async_mode())
+	if (system_uses_mte_async_or_asymm_mode())
 		 __uaccess_disable_tco();
 }
 
 static inline void __uaccess_enable_tco_async(void)
 {
-	if (system_uses_mte_async_mode())
+	if (system_uses_mte_async_or_asymm_mode())
 		__uaccess_enable_tco();
 }
 
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index 0cdae086966e8..f418ebc65f950 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -26,9 +26,12 @@
 static DEFINE_PER_CPU_READ_MOSTLY(u64, mte_tcf_preferred);
 
 #ifdef CONFIG_KASAN_HW_TAGS
-/* Whether the MTE asynchronous mode is enabled. */
-DEFINE_STATIC_KEY_FALSE(mte_async_mode);
-EXPORT_SYMBOL_GPL(mte_async_mode);
+/*
+ * The asynchronous and asymmetric MTE modes have the same behavior for
+ * store operations. This flag is set when either of these modes is enabled.
+ */
+DEFINE_STATIC_KEY_FALSE(mte_async_or_asymm_mode);
+EXPORT_SYMBOL_GPL(mte_async_or_asymm_mode);
 #endif
 
 static void mte_sync_page_tags(struct page *page, pte_t old_pte,
@@ -116,7 +119,7 @@ void mte_enable_kernel_sync(void)
 	 * Make sure we enter this function when no PE has set
 	 * async mode previously.
 	 */
-	WARN_ONCE(system_uses_mte_async_mode(),
+	WARN_ONCE(system_uses_mte_async_or_asymm_mode(),
 			"MTE async mode enabled system wide!");
 
 	__mte_enable_kernel("synchronous", SCTLR_ELx_TCF_SYNC);
@@ -134,8 +137,34 @@ void mte_enable_kernel_async(void)
 	 * mode in between sync and async, this strategy needs
 	 * to be reviewed.
 	 */
-	if (!system_uses_mte_async_mode())
-		static_branch_enable(&mte_async_mode);
+	if (!system_uses_mte_async_or_asymm_mode())
+		static_branch_enable(&mte_async_or_asymm_mode);
+}
+
+void mte_enable_kernel_asymm(void)
+{
+	if (cpus_have_cap(ARM64_MTE_ASYMM)) {
+		__mte_enable_kernel("asymmetric", SCTLR_ELx_TCF_ASYMM);
+
+		/*
+		 * MTE asymm mode behaves as async mode for store
+		 * operations. The mode is set system wide by the
+		 * first PE that executes this function.
+		 *
+		 * Note: If in future KASAN acquires a runtime switching
+		 * mode in between sync and async, this strategy needs
+		 * to be reviewed.
+		 */
+		if (!system_uses_mte_async_or_asymm_mode())
+			static_branch_enable(&mte_async_or_asymm_mode);
+	} else {
+		/*
+		 * If the CPU does not support MTE asymmetric mode the
+		 * kernel falls back on synchronous mode which is the
+		 * default for kasan=on.
+		 */
+		mte_enable_kernel_sync();
+	}
 }
 #endif
 
-- 
GitLab


From 1b9d30dbe7db25118190c9ba07aa002400938370 Mon Sep 17 00:00:00 2001
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: Wed, 6 Oct 2021 16:47:51 +0100
Subject: [PATCH 3778/4878] UPSTREAM: kasan: Extend KASAN mode kernel parameter

Architectures supported by KASAN_HW_TAGS can provide an asymmetric mode
of execution. On an MTE enabled arm64 hw for example this can be
identified with the asymmetric tagging mode of execution. In particular,
when such a mode is present, the CPU triggers a fault on a tag mismatch
during a load operation and asynchronously updates a register when a tag
mismatch is detected during a store operation.

Extend the KASAN HW execution mode kernel command line parameter to
support asymmetric mode.

Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20211006154751.4463-6-vincenzo.frascino@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 2d27e585147395316289c63efc932984675c65c2)
Bug: 217221156
Change-Id: I5284fd8a4e8c2ddb1e06ca65bed133e35d70eb7f
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst |  7 +++++--
 lib/test_kasan.c                  |  2 +-
 mm/kasan/hw_tags.c                | 29 +++++++++++++++++++----------
 mm/kasan/kasan.h                  | 30 ++++++++++++++++++++++++++----
 mm/kasan/report.c                 |  2 +-
 5 files changed, 52 insertions(+), 18 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 21dc03bc10a45..8089c559d339c 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -194,14 +194,17 @@ additional boot parameters that allow disabling KASAN or controlling features:
 
 - ``kasan=off`` or ``=on`` controls whether KASAN is enabled (default: ``on``).
 
-- ``kasan.mode=sync`` or ``=async`` controls whether KASAN is configured in
-  synchronous or asynchronous mode of execution (default: ``sync``).
+- ``kasan.mode=sync``, ``=async`` or ``=asymm`` controls whether KASAN
+  is configured in synchronous, asynchronous or asymmetric mode of
+  execution (default: ``sync``).
   Synchronous mode: a bad access is detected immediately when a tag
   check fault occurs.
   Asynchronous mode: a bad access detection is delayed. When a tag check
   fault occurs, the information is stored in hardware (in the TFSR_EL1
   register for arm64). The kernel periodically checks the hardware and
   only reports tag faults during these checks.
+  Asymmetric mode: a bad access is detected synchronously on reads and
+  asynchronously on writes.
 
 - ``kasan.stacktrace=off`` or ``=on`` disables or enables alloc and free stack
   traces collection (default: ``on``).
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 02e58471f0786..c43076ee7db56 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -88,7 +88,7 @@ static void kasan_test_exit(struct kunit *test)
  */
 #define KUNIT_EXPECT_KASAN_FAIL(test, expression) do {			\
 	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS) &&				\
-	    !kasan_async_mode_enabled())				\
+	    kasan_sync_fault_possible())				\
 		migrate_disable();					\
 	KUNIT_EXPECT_FALSE(test, READ_ONCE(fail_data.report_found));	\
 	barrier();							\
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 05d1e9460e2e3..dc892119e88f4 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -29,6 +29,7 @@ enum kasan_arg_mode {
 	KASAN_ARG_MODE_DEFAULT,
 	KASAN_ARG_MODE_SYNC,
 	KASAN_ARG_MODE_ASYNC,
+	KASAN_ARG_MODE_ASYMM,
 };
 
 enum kasan_arg_stacktrace {
@@ -45,9 +46,9 @@ static enum kasan_arg_stacktrace kasan_arg_stacktrace __ro_after_init;
 DEFINE_STATIC_KEY_FALSE(kasan_flag_enabled);
 EXPORT_SYMBOL(kasan_flag_enabled);
 
-/* Whether the asynchronous mode is enabled. */
-bool kasan_flag_async __ro_after_init;
-EXPORT_SYMBOL_GPL(kasan_flag_async);
+/* Whether the selected mode is synchronous/asynchronous/asymmetric.*/
+enum kasan_mode kasan_mode __ro_after_init;
+EXPORT_SYMBOL_GPL(kasan_mode);
 
 /* Whether to collect alloc/free stack traces. */
 DEFINE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
@@ -69,7 +70,7 @@ static int __init early_kasan_flag(char *arg)
 }
 early_param("kasan", early_kasan_flag);
 
-/* kasan.mode=sync/async */
+/* kasan.mode=sync/async/asymm */
 static int __init early_kasan_mode(char *arg)
 {
 	if (!arg)
@@ -79,6 +80,8 @@ static int __init early_kasan_mode(char *arg)
 		kasan_arg_mode = KASAN_ARG_MODE_SYNC;
 	else if (!strcmp(arg, "async"))
 		kasan_arg_mode = KASAN_ARG_MODE_ASYNC;
+	else if (!strcmp(arg, "asymm"))
+		kasan_arg_mode = KASAN_ARG_MODE_ASYMM;
 	else
 		return -EINVAL;
 
@@ -116,11 +119,13 @@ void kasan_init_hw_tags_cpu(void)
 		return;
 
 	/*
-	 * Enable async mode only when explicitly requested through
-	 * the command line.
+	 * Enable async or asymm modes only when explicitly requested
+	 * through the command line.
 	 */
 	if (kasan_arg_mode == KASAN_ARG_MODE_ASYNC)
 		hw_enable_tagging_async();
+	else if (kasan_arg_mode == KASAN_ARG_MODE_ASYMM)
+		hw_enable_tagging_asymm();
 	else
 		hw_enable_tagging_sync();
 }
@@ -143,15 +148,19 @@ void __init kasan_init_hw_tags(void)
 	case KASAN_ARG_MODE_DEFAULT:
 		/*
 		 * Default to sync mode.
-		 * Do nothing, kasan_flag_async keeps its default value.
 		 */
-		break;
+		fallthrough;
 	case KASAN_ARG_MODE_SYNC:
-		/* Do nothing, kasan_flag_async keeps its default value. */
+		/* Sync mode enabled. */
+		kasan_mode = KASAN_MODE_SYNC;
 		break;
 	case KASAN_ARG_MODE_ASYNC:
 		/* Async mode enabled. */
-		kasan_flag_async = true;
+		kasan_mode = KASAN_MODE_ASYNC;
+		break;
+	case KASAN_ARG_MODE_ASYMM:
+		/* Asymm mode enabled. */
+		kasan_mode = KASAN_MODE_ASYMM;
 		break;
 	}
 
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 3561a9d5ae32c..dd47b0c626773 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -13,16 +13,28 @@
 #include "../slab.h"
 
 DECLARE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
-extern bool kasan_flag_async __ro_after_init;
+
+enum kasan_mode {
+	KASAN_MODE_SYNC,
+	KASAN_MODE_ASYNC,
+	KASAN_MODE_ASYMM,
+};
+
+extern enum kasan_mode kasan_mode __ro_after_init;
 
 static inline bool kasan_stack_collection_enabled(void)
 {
 	return static_branch_unlikely(&kasan_flag_stacktrace);
 }
 
-static inline bool kasan_async_mode_enabled(void)
+static inline bool kasan_async_fault_possible(void)
+{
+	return kasan_mode == KASAN_MODE_ASYNC || kasan_mode == KASAN_MODE_ASYMM;
+}
+
+static inline bool kasan_sync_fault_possible(void)
 {
-	return kasan_flag_async;
+	return kasan_mode == KASAN_MODE_SYNC || kasan_mode == KASAN_MODE_ASYMM;
 }
 #else
 
@@ -31,11 +43,16 @@ static inline bool kasan_stack_collection_enabled(void)
 	return true;
 }
 
-static inline bool kasan_async_mode_enabled(void)
+static inline bool kasan_async_fault_possible(void)
 {
 	return false;
 }
 
+static inline bool kasan_sync_fault_possible(void)
+{
+	return true;
+}
+
 #endif
 
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
@@ -287,6 +304,9 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 #ifndef arch_enable_tagging_async
 #define arch_enable_tagging_async()
 #endif
+#ifndef arch_enable_tagging_asymm
+#define arch_enable_tagging_asymm()
+#endif
 #ifndef arch_force_async_tag_fault
 #define arch_force_async_tag_fault()
 #endif
@@ -302,6 +322,7 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #define hw_enable_tagging_sync()		arch_enable_tagging_sync()
 #define hw_enable_tagging_async()		arch_enable_tagging_async()
+#define hw_enable_tagging_asymm()		arch_enable_tagging_asymm()
 #define hw_force_async_tag_fault()		arch_force_async_tag_fault()
 #define hw_get_random_tag()			arch_get_random_tag()
 #define hw_get_mem_tag(addr)			arch_get_mem_tag(addr)
@@ -312,6 +333,7 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #define hw_enable_tagging_sync()
 #define hw_enable_tagging_async()
+#define hw_enable_tagging_asymm()
 
 #endif /* CONFIG_KASAN_HW_TAGS */
 
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 884a950c70265..9da071ad930c9 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -112,7 +112,7 @@ static void start_report(unsigned long *flags)
 
 static void end_report(unsigned long *flags, unsigned long addr)
 {
-	if (!kasan_async_mode_enabled())
+	if (!kasan_async_fault_possible())
 		trace_error_report_end(ERROR_DETECTOR_KASAN, addr);
 	pr_err("==================================================================\n");
 	add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
-- 
GitLab


From 531f811d328b6f4bc37b4bfb26331de85d157efb Mon Sep 17 00:00:00 2001
From: Qian Cai <quic_qiancai@quicinc.com>
Date: Fri, 5 Nov 2021 11:05:09 -0400
Subject: [PATCH 3779/4878] BACKPORT: arm64: Track no early_pgtable_alloc() for
 kmemleak

(Backport: arm32 KASAN not backported; drop related changes.)

After switched page size from 64KB to 4KB on several arm64 servers here,
kmemleak starts to run out of early memory pool due to a huge number of
those early_pgtable_alloc() calls:

  kmemleak_alloc_phys()
  memblock_alloc_range_nid()
  memblock_phys_alloc_range()
  early_pgtable_alloc()
  init_pmd()
  alloc_init_pud()
  __create_pgd_mapping()
  __map_memblock()
  paging_init()
  setup_arch()
  start_kernel()

Increased the default value of DEBUG_KMEMLEAK_MEM_POOL_SIZE by 4 times
won't be enough for a server with 200GB+ memory. There isn't much
interesting to check memory leaks for those early page tables and those
early memory mappings should not reference to other memory. Hence, no
kmemleak false positives, and we can safely skip tracking those early
allocations from kmemleak like we did in the commit fed84c785270
("mm/memblock.c: skip kmemleak for kasan_init()") without needing to
introduce complications to automatically scale the value depends on the
runtime memory size etc. After the patch, the default value of
DEBUG_KMEMLEAK_MEM_POOL_SIZE becomes sufficient again.

Signed-off-by: Qian Cai <quic_qiancai@quicinc.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20211105150509.7826-1-quic_qiancai@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit c6975d7cab5b903aadbc0f78f9af4fae1bd23a50)
Change-Id: Ie2a33b4219185948cbbc599df76973d547c78dbb
Bug: 217222520
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/mm/kasan_init.c | 5 +++--
 arch/arm64/mm/mmu.c        | 3 ++-
 include/linux/memblock.h   | 2 +-
 mm/memblock.c              | 9 ++++++---
 4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 61b52a92b8b68..995ac7540e6a5 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -36,7 +36,7 @@ static phys_addr_t __init kasan_alloc_zeroed_page(int node)
 {
 	void *p = memblock_alloc_try_nid(PAGE_SIZE, PAGE_SIZE,
 					      __pa(MAX_DMA_ADDRESS),
-					      MEMBLOCK_ALLOC_KASAN, node);
+					      MEMBLOCK_ALLOC_NOLEAKTRACE, node);
 	if (!p)
 		panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%llx\n",
 		      __func__, PAGE_SIZE, PAGE_SIZE, node,
@@ -49,7 +49,8 @@ static phys_addr_t __init kasan_alloc_raw_page(int node)
 {
 	void *p = memblock_alloc_try_nid_raw(PAGE_SIZE, PAGE_SIZE,
 						__pa(MAX_DMA_ADDRESS),
-						MEMBLOCK_ALLOC_KASAN, node);
+						MEMBLOCK_ALLOC_NOLEAKTRACE,
+						node);
 	if (!p)
 		panic("%s: Failed to allocate %lu bytes align=0x%lx nid=%d from=%llx\n",
 		      __func__, PAGE_SIZE, PAGE_SIZE, node,
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index d3b330f954f75..da1c8229f4741 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -94,7 +94,8 @@ static phys_addr_t __init early_pgtable_alloc(int shift)
 	phys_addr_t phys;
 	void *ptr;
 
-	phys = memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE);
+	phys = memblock_phys_alloc_range(PAGE_SIZE, PAGE_SIZE, 0,
+					 MEMBLOCK_ALLOC_NOLEAKTRACE);
 	if (!phys)
 		panic("Failed to allocate page table page\n");
 
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index ff08bb433c16e..3306d99dd5274 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -371,7 +371,7 @@ static inline int memblock_get_region_node(const struct memblock_region *r)
 /* Flags for memblock allocation APIs */
 #define MEMBLOCK_ALLOC_ANYWHERE	(~(phys_addr_t)0)
 #define MEMBLOCK_ALLOC_ACCESSIBLE	0
-#define MEMBLOCK_ALLOC_KASAN		1
+#define MEMBLOCK_ALLOC_NOLEAKTRACE	1
 
 /* We are using top down, so it is safe to use 0 here */
 #define MEMBLOCK_LOW_LIMIT 0
diff --git a/mm/memblock.c b/mm/memblock.c
index 00573d703fce6..31f013749f3f0 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -287,7 +287,7 @@ static phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t size,
 {
 	/* pump up @end */
 	if (end == MEMBLOCK_ALLOC_ACCESSIBLE ||
-	    end == MEMBLOCK_ALLOC_KASAN)
+	    end == MEMBLOCK_ALLOC_NOLEAKTRACE)
 		end = memblock.current_limit;
 
 	/* avoid allocating the first page */
@@ -1358,8 +1358,11 @@ again:
 	return 0;
 
 done:
-	/* Skip kmemleak for kasan_init() due to high volume. */
-	if (end != MEMBLOCK_ALLOC_KASAN)
+	/*
+	 * Skip kmemleak for those places like kasan_init() and
+	 * early_pgtable_alloc() due to high volume.
+	 */
+	if (end != MEMBLOCK_ALLOC_NOLEAKTRACE)
 		/*
 		 * The min_count is set to 0 so that memblock allocated
 		 * blocks are never reported as leaks. This is because many
-- 
GitLab


From 5b0256837539f877e40b9071f75a2b3607c2ac21 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 5 Nov 2021 13:35:33 -0700
Subject: [PATCH 3780/4878] UPSTREAM: lib/stackdepot: include gfp.h

Patch series "stackdepot, kasan, workqueue: Avoid expanding stackdepot
slabs when holding raw_spin_lock", v2.

Shuah Khan reported [1]:

 | When CONFIG_PROVE_RAW_LOCK_NESTING=y and CONFIG_KASAN are enabled,
 | kasan_record_aux_stack() runs into "BUG: Invalid wait context" when
 | it tries to allocate memory attempting to acquire spinlock in page
 | allocation code while holding workqueue pool raw_spinlock.
 |
 | There are several instances of this problem when block layer tries
 | to __queue_work(). Call trace from one of these instances is below:
 |
 |     kblockd_mod_delayed_work_on()
 |       mod_delayed_work_on()
 |         __queue_delayed_work()
 |           __queue_work() (rcu_read_lock, raw_spin_lock pool->lock held)
 |             insert_work()
 |               kasan_record_aux_stack()
 |                 kasan_save_stack()
 |                   stack_depot_save()
 |                     alloc_pages()
 |                       __alloc_pages()
 |                         get_page_from_freelist()
 |                           rm_queue()
 |                             rm_queue_pcplist()
 |                               local_lock_irqsave(&pagesets.lock, flags);
 |                               [ BUG: Invalid wait context triggered ]

PROVE_RAW_LOCK_NESTING is pointing out that (on RT kernels) the locking
rules are being violated.  More generally, memory is being allocated
from a non-preemptive context (raw_spin_lock'd c-s) where it is not
allowed.

To properly fix this, we must prevent stackdepot from replenishing its
"stack slab" pool if memory allocations cannot be done in the current
context: it's a bug to use either GFP_ATOMIC nor GFP_NOWAIT in certain
non-preemptive contexts, including raw_spin_locks (see gfp.h and commit
ab00db216c9c7).

The only downside is that saving a stack trace may fail if: stackdepot
runs out of space AND the same stack trace has not been recorded before.
I expect this to be unlikely, and a simple experiment (boot the kernel)
didn't result in any failure to record stack trace from insert_work().

The series includes a few minor fixes to stackdepot that I noticed in
preparing the series.  It then introduces __stack_depot_save(), which
exposes the option to force stackdepot to not allocate any memory.
Finally, KASAN is changed to use the new stackdepot interface and
provide kasan_record_aux_stack_noalloc(), which is then used by
workqueue code.

[1] https://lkml.kernel.org/r/20210902200134.25603-1-skhan@linuxfoundation.org

This patch (of 6):

<linux/stackdepot.h> refers to gfp_t, but doesn't include gfp.h.

Fix it by including <linux/gfp.h>.

Link: https://lkml.kernel.org/r/20210913112609.2651084-1-elver@google.com
Link: https://lkml.kernel.org/r/20210913112609.2651084-2-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Taras Madan <tarasmadan@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7857ccdf94e94f1dd56496b90084fdcaa5e655a4)
Bug: 217222520
Change-Id: Idba812b3e8c92211d1b6d359618793c8738e6a0d
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/stackdepot.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/stackdepot.h b/include/linux/stackdepot.h
index 6bb4bc1a5f545..97b36dc53301d 100644
--- a/include/linux/stackdepot.h
+++ b/include/linux/stackdepot.h
@@ -11,6 +11,8 @@
 #ifndef _LINUX_STACKDEPOT_H
 #define _LINUX_STACKDEPOT_H
 
+#include <linux/gfp.h>
+
 typedef u32 depot_stack_handle_t;
 
 depot_stack_handle_t stack_depot_save(unsigned long *entries,
-- 
GitLab


From a639ce78315cfb5fbe961e9d23cbd388e5fa37dc Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 5 Nov 2021 13:35:36 -0700
Subject: [PATCH 3781/4878] UPSTREAM: lib/stackdepot: remove unused function
 argument

alloc_flags in depot_alloc_stack() is no longer used; remove it.

Link: https://lkml.kernel.org/r/20210913112609.2651084-3-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Taras Madan <tarasmadan@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7f2b8818ea1361e3482d1e3a3c9a824789177d3a)
Bug: 217222520
Change-Id: Ia9f591402d6df31a6d69031e86f650db2620282e
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/stackdepot.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index df9179f4f4414..c7d2fd70c0121 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -102,8 +102,8 @@ static bool init_stack_slab(void **prealloc)
 }
 
 /* Allocation of a new stack in raw storage */
-static struct stack_record *depot_alloc_stack(unsigned long *entries, int size,
-		u32 hash, void **prealloc, gfp_t alloc_flags)
+static struct stack_record *
+depot_alloc_stack(unsigned long *entries, int size, u32 hash, void **prealloc)
 {
 	struct stack_record *stack;
 	size_t required_size = struct_size(stack, entries, size);
@@ -309,9 +309,8 @@ depot_stack_handle_t stack_depot_save(unsigned long *entries,
 
 	found = find_stack(*bucket, entries, nr_entries, hash);
 	if (!found) {
-		struct stack_record *new =
-			depot_alloc_stack(entries, nr_entries,
-					  hash, &prealloc, alloc_flags);
+		struct stack_record *new = depot_alloc_stack(entries, nr_entries, hash, &prealloc);
+
 		if (new) {
 			new->next = *bucket;
 			/*
-- 
GitLab


From edcc1b6ef3bedf08638a875aed9549fdbcc71306 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 5 Nov 2021 13:35:39 -0700
Subject: [PATCH 3782/4878] UPSTREAM: lib/stackdepot: introduce
 __stack_depot_save()

Add __stack_depot_save(), which provides more fine-grained control over
stackdepot's memory allocation behaviour, in case stackdepot runs out of
"stack slabs".

Normally stackdepot uses alloc_pages() in case it runs out of space;
passing can_alloc==false to __stack_depot_save() prohibits this, at the
cost of more likely failure to record a stack trace.

Link: https://lkml.kernel.org/r/20210913112609.2651084-4-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Taras Madan <tarasmadan@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 11ac25c62cd2f3bb8da9e1df2e71afdebe76f093)
Bug: 217222520
Change-Id: Id2ed1694eb5c689258e4e8cd7c6bf10584b4b88c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/stackdepot.h |  4 ++++
 lib/stackdepot.c           | 43 ++++++++++++++++++++++++++++++++------
 2 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/include/linux/stackdepot.h b/include/linux/stackdepot.h
index 97b36dc53301d..b2f7e7c6ba54d 100644
--- a/include/linux/stackdepot.h
+++ b/include/linux/stackdepot.h
@@ -15,6 +15,10 @@
 
 typedef u32 depot_stack_handle_t;
 
+depot_stack_handle_t __stack_depot_save(unsigned long *entries,
+					unsigned int nr_entries,
+					gfp_t gfp_flags, bool can_alloc);
+
 depot_stack_handle_t stack_depot_save(unsigned long *entries,
 				      unsigned int nr_entries, gfp_t gfp_flags);
 
diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index c7d2fd70c0121..b9cb9a5081124 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -248,17 +248,28 @@ unsigned int stack_depot_fetch(depot_stack_handle_t handle,
 EXPORT_SYMBOL_GPL(stack_depot_fetch);
 
 /**
- * stack_depot_save - Save a stack trace from an array
+ * __stack_depot_save - Save a stack trace from an array
  *
  * @entries:		Pointer to storage array
  * @nr_entries:		Size of the storage array
  * @alloc_flags:	Allocation gfp flags
+ * @can_alloc:		Allocate stack slabs (increased chance of failure if false)
+ *
+ * Saves a stack trace from @entries array of size @nr_entries. If @can_alloc is
+ * %true, is allowed to replenish the stack slab pool in case no space is left
+ * (allocates using GFP flags of @alloc_flags). If @can_alloc is %false, avoids
+ * any allocations and will fail if no space is left to store the stack trace.
+ *
+ * Context: Any context, but setting @can_alloc to %false is required if
+ *          alloc_pages() cannot be used from the current context. Currently
+ *          this is the case from contexts where neither %GFP_ATOMIC nor
+ *          %GFP_NOWAIT can be used (NMI, raw_spin_lock).
  *
- * Return: The handle of the stack struct stored in depot
+ * Return: The handle of the stack struct stored in depot, 0 on failure.
  */
-depot_stack_handle_t stack_depot_save(unsigned long *entries,
-				      unsigned int nr_entries,
-				      gfp_t alloc_flags)
+depot_stack_handle_t __stack_depot_save(unsigned long *entries,
+					unsigned int nr_entries,
+					gfp_t alloc_flags, bool can_alloc)
 {
 	struct stack_record *found = NULL, **bucket;
 	depot_stack_handle_t retval = 0;
@@ -291,7 +302,7 @@ depot_stack_handle_t stack_depot_save(unsigned long *entries,
 	 * The smp_load_acquire() here pairs with smp_store_release() to
 	 * |next_slab_inited| in depot_alloc_stack() and init_stack_slab().
 	 */
-	if (unlikely(!smp_load_acquire(&next_slab_inited))) {
+	if (unlikely(can_alloc && !smp_load_acquire(&next_slab_inited))) {
 		/*
 		 * Zero out zone modifiers, as we don't have specific zone
 		 * requirements. Keep the flags related to allocation in atomic
@@ -339,6 +350,26 @@ exit:
 fast_exit:
 	return retval;
 }
+EXPORT_SYMBOL_GPL(__stack_depot_save);
+
+/**
+ * stack_depot_save - Save a stack trace from an array
+ *
+ * @entries:		Pointer to storage array
+ * @nr_entries:		Size of the storage array
+ * @alloc_flags:	Allocation gfp flags
+ *
+ * Context: Contexts where allocations via alloc_pages() are allowed.
+ *          See __stack_depot_save() for more details.
+ *
+ * Return: The handle of the stack struct stored in depot, 0 on failure.
+ */
+depot_stack_handle_t stack_depot_save(unsigned long *entries,
+				      unsigned int nr_entries,
+				      gfp_t alloc_flags)
+{
+	return __stack_depot_save(entries, nr_entries, alloc_flags, true);
+}
 EXPORT_SYMBOL_GPL(stack_depot_save);
 
 static inline int in_irqentry_text(unsigned long ptr)
-- 
GitLab


From 6b207f6c35c92aa9259de51175e17925316dfe60 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 5 Nov 2021 13:35:43 -0700
Subject: [PATCH 3783/4878] UPSTREAM: kasan: common: provide can_alloc in
 kasan_save_stack()

Add another argument, can_alloc, to kasan_save_stack() which is passed
as-is to __stack_depot_save().

No functional change intended.

Link: https://lkml.kernel.org/r/20210913112609.2651084-5-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Taras Madan <tarasmadan@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7594b34774294ff23a32506b8b874d6425a1481a)
Bug: 217222520
Change-Id: Ic2fb3bbc49aabf3135a57aec635b4c024ccc043b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/common.c  | 6 +++---
 mm/kasan/generic.c | 2 +-
 mm/kasan/kasan.h   | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 97a72e0e06407..ac7646c7c36b4 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -30,20 +30,20 @@
 #include "kasan.h"
 #include "../slab.h"
 
-depot_stack_handle_t kasan_save_stack(gfp_t flags)
+depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc)
 {
 	unsigned long entries[KASAN_STACK_DEPTH];
 	unsigned int nr_entries;
 
 	nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 0);
 	nr_entries = filter_irq_stacks(entries, nr_entries);
-	return stack_depot_save(entries, nr_entries, flags);
+	return __stack_depot_save(entries, nr_entries, flags, can_alloc);
 }
 
 void kasan_set_track(struct kasan_track *track, gfp_t flags)
 {
 	track->pid = current->pid;
-	track->stack = kasan_save_stack(flags);
+	track->stack = kasan_save_stack(flags, true);
 }
 
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index c3f5ba7a294a8..2a8e59e6326d2 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -345,7 +345,7 @@ void kasan_record_aux_stack(void *addr)
 		return;
 
 	alloc_meta->aux_stack[1] = alloc_meta->aux_stack[0];
-	alloc_meta->aux_stack[0] = kasan_save_stack(GFP_NOWAIT);
+	alloc_meta->aux_stack[0] = kasan_save_stack(GFP_NOWAIT, true);
 }
 
 void kasan_set_free_info(struct kmem_cache *cache,
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index dd47b0c626773..47f7b10e0b232 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -266,7 +266,7 @@ void kasan_report_invalid_free(void *object, unsigned long ip);
 
 struct page *kasan_addr_to_page(const void *addr);
 
-depot_stack_handle_t kasan_save_stack(gfp_t flags);
+depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc);
 void kasan_set_track(struct kasan_track *track, gfp_t flags);
 void kasan_set_free_info(struct kmem_cache *cache, void *object, u8 tag);
 struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
-- 
GitLab


From e3e5e4a728ad89a16a969d2ac0eb1b1a800ac550 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 5 Nov 2021 13:35:46 -0700
Subject: [PATCH 3784/4878] UPSTREAM: kasan: generic: introduce
 kasan_record_aux_stack_noalloc()

Introduce a variant of kasan_record_aux_stack() that does not do any
memory allocation through stackdepot.  This will permit using it in
contexts that cannot allocate any memory.

Link: https://lkml.kernel.org/r/20210913112609.2651084-6-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Taras Madan <tarasmadan@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7cb3007ce2da27ec02a1a3211941e7fe6875b642)
Bug: 217222520
Change-Id: I2eeb890744053efe4a78c1db5e4d61610f38d154
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h |  2 ++
 mm/kasan/generic.c    | 14 ++++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 6530996861ff9..379feee2a25b2 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -375,12 +375,14 @@ static inline void kasan_unpoison_task_stack(struct task_struct *task) {}
 void kasan_cache_shrink(struct kmem_cache *cache);
 void kasan_cache_shutdown(struct kmem_cache *cache);
 void kasan_record_aux_stack(void *ptr);
+void kasan_record_aux_stack_noalloc(void *ptr);
 
 #else /* CONFIG_KASAN_GENERIC */
 
 static inline void kasan_cache_shrink(struct kmem_cache *cache) {}
 static inline void kasan_cache_shutdown(struct kmem_cache *cache) {}
 static inline void kasan_record_aux_stack(void *ptr) {}
+static inline void kasan_record_aux_stack_noalloc(void *ptr) {}
 
 #endif /* CONFIG_KASAN_GENERIC */
 
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index 2a8e59e6326d2..84a038b07c6fe 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -328,7 +328,7 @@ DEFINE_ASAN_SET_SHADOW(f3);
 DEFINE_ASAN_SET_SHADOW(f5);
 DEFINE_ASAN_SET_SHADOW(f8);
 
-void kasan_record_aux_stack(void *addr)
+static void __kasan_record_aux_stack(void *addr, bool can_alloc)
 {
 	struct page *page = kasan_addr_to_page(addr);
 	struct kmem_cache *cache;
@@ -345,7 +345,17 @@ void kasan_record_aux_stack(void *addr)
 		return;
 
 	alloc_meta->aux_stack[1] = alloc_meta->aux_stack[0];
-	alloc_meta->aux_stack[0] = kasan_save_stack(GFP_NOWAIT, true);
+	alloc_meta->aux_stack[0] = kasan_save_stack(GFP_NOWAIT, can_alloc);
+}
+
+void kasan_record_aux_stack(void *addr)
+{
+	return __kasan_record_aux_stack(addr, true);
+}
+
+void kasan_record_aux_stack_noalloc(void *addr)
+{
+	return __kasan_record_aux_stack(addr, false);
 }
 
 void kasan_set_free_info(struct kmem_cache *cache,
-- 
GitLab


From 8f225ea8766d8ecfcb031b3ac29b13b5c163b1b8 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 5 Nov 2021 13:35:50 -0700
Subject: [PATCH 3785/4878] UPSTREAM: workqueue, kasan: avoid alloc_pages()
 when recording stack

Shuah Khan reported:

 | When CONFIG_PROVE_RAW_LOCK_NESTING=y and CONFIG_KASAN are enabled,
 | kasan_record_aux_stack() runs into "BUG: Invalid wait context" when
 | it tries to allocate memory attempting to acquire spinlock in page
 | allocation code while holding workqueue pool raw_spinlock.
 |
 | There are several instances of this problem when block layer tries
 | to __queue_work(). Call trace from one of these instances is below:
 |
 |     kblockd_mod_delayed_work_on()
 |       mod_delayed_work_on()
 |         __queue_delayed_work()
 |           __queue_work() (rcu_read_lock, raw_spin_lock pool->lock held)
 |             insert_work()
 |               kasan_record_aux_stack()
 |                 kasan_save_stack()
 |                   stack_depot_save()
 |                     alloc_pages()
 |                       __alloc_pages()
 |                         get_page_from_freelist()
 |                           rm_queue()
 |                             rm_queue_pcplist()
 |                               local_lock_irqsave(&pagesets.lock, flags);
 |                               [ BUG: Invalid wait context triggered ]

The default kasan_record_aux_stack() calls stack_depot_save() with
GFP_NOWAIT, which in turn can then call alloc_pages(GFP_NOWAIT, ...).
In general, however, it is not even possible to use either GFP_ATOMIC
nor GFP_NOWAIT in certain non-preemptive contexts, including
raw_spin_locks (see gfp.h and commmit ab00db216c9c7).

Fix it by instructing stackdepot to not expand stack storage via
alloc_pages() in case it runs out by using
kasan_record_aux_stack_noalloc().

While there is an increased risk of failing to insert the stack trace,
this is typically unlikely, especially if the same insertion had already
succeeded previously (stack depot hit).

For frequent calls from the same location, it therefore becomes
extremely unlikely that kasan_record_aux_stack_noalloc() fails.

Link: https://lkml.kernel.org/r/20210902200134.25603-1-skhan@linuxfoundation.org
Link: https://lkml.kernel.org/r/20210913112609.2651084-7-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Taras Madan <tarasmadan@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f70da745be4d4c367568b8345f50db1ae04efcb2)
Bug: 217222520
Change-Id: I81052dba582dbcb492fd7efcef8d56bac4766503
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 kernel/workqueue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 7a15cffd33f5b..9334aef949f5a 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1346,7 +1346,7 @@ static void insert_work(struct pool_workqueue *pwq, struct work_struct *work,
 	struct worker_pool *pool = pwq->pool;
 
 	/* record the work call stack in order to print it in KASAN reports */
-	kasan_record_aux_stack(work);
+	kasan_record_aux_stack_noalloc(work);
 
 	/* we own @work, set data and link */
 	set_work_pwq(work, pwq, extra_flags);
-- 
GitLab


From e7c11d336374c750811c55035f7941c1b6390ab1 Mon Sep 17 00:00:00 2001
From: Jun Miao <jun.miao@intel.com>
Date: Tue, 16 Nov 2021 07:23:02 +0800
Subject: [PATCH 3786/4878] BACKPORT: rcu: Avoid alloc_pages() when recording
 stack

(Backport: adjacent lines changes.)

The default kasan_record_aux_stack() calls stack_depot_save() with GFP_NOWAIT,
which in turn can then call alloc_pages(GFP_NOWAIT, ...).  In general, however,
it is not even possible to use either GFP_ATOMIC nor GFP_NOWAIT in certain
non-preemptive contexts/RT kernel including raw_spin_locks (see gfp.h and ab00db216c9c7).
Fix it by instructing stackdepot to not expand stack storage via alloc_pages()
in case it runs out by using kasan_record_aux_stack_noalloc().

Jianwei Hu reported:
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:969
in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 15319, name: python3
INFO: lockdep is turned off.
irq event stamp: 0
  hardirqs last  enabled at (0): [<0000000000000000>] 0x0
  hardirqs last disabled at (0): [<ffffffff856c8b13>] copy_process+0xaf3/0x2590
  softirqs last  enabled at (0): [<ffffffff856c8b13>] copy_process+0xaf3/0x2590
  softirqs last disabled at (0): [<0000000000000000>] 0x0
  CPU: 6 PID: 15319 Comm: python3 Tainted: G        W  O 5.15-rc7-preempt-rt #1
  Hardware name: Supermicro SYS-E300-9A-8C/A2SDi-8C-HLN4F, BIOS 1.1b 12/17/2018
  Call Trace:
    show_stack+0x52/0x58
    dump_stack+0xa1/0xd6
    ___might_sleep.cold+0x11c/0x12d
    rt_spin_lock+0x3f/0xc0
    rmqueue+0x100/0x1460
    rmqueue+0x100/0x1460
    mark_usage+0x1a0/0x1a0
    ftrace_graph_ret_addr+0x2a/0xb0
    rmqueue_pcplist.constprop.0+0x6a0/0x6a0
     __kasan_check_read+0x11/0x20
     __zone_watermark_ok+0x114/0x270
     get_page_from_freelist+0x148/0x630
     is_module_text_address+0x32/0xa0
     __alloc_pages_nodemask+0x2f6/0x790
     __alloc_pages_slowpath.constprop.0+0x12d0/0x12d0
     create_prof_cpu_mask+0x30/0x30
     alloc_pages_current+0xb1/0x150
     stack_depot_save+0x39f/0x490
     kasan_save_stack+0x42/0x50
     kasan_save_stack+0x23/0x50
     kasan_record_aux_stack+0xa9/0xc0
     __call_rcu+0xff/0x9c0
     call_rcu+0xe/0x10
     put_object+0x53/0x70
     __delete_object+0x7b/0x90
     kmemleak_free+0x46/0x70
     slab_free_freelist_hook+0xb4/0x160
     kfree+0xe5/0x420
     kfree_const+0x17/0x30
     kobject_cleanup+0xaa/0x230
     kobject_put+0x76/0x90
     netdev_queue_update_kobjects+0x17d/0x1f0
     ... ...
     ksys_write+0xd9/0x180
     __x64_sys_write+0x42/0x50
     do_syscall_64+0x38/0x50
     entry_SYSCALL_64_after_hwframe+0x44/0xa9

Links: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/include/linux/kasan.h?id=7cb3007ce2da27ec02a1a3211941e7fe6875b642
Fixes: 84109ab58590 ("rcu: Record kvfree_call_rcu() call stack for KASAN")
Fixes: 26e760c9a7c8 ("rcu: kasan: record and print call_rcu() call stack")
Reported-by: Jianwei Hu <jianwei.hu@windriver.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Jun Miao <jun.miao@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
(cherry picked from commit 300c0c5e721834f484b03fa3062602dd8ff48413)
Bug: 217222520
Change-Id: I5b7d4f9dfe5da290627599d8d6de3278debb2a13
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 kernel/rcu/tree.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 2a8af69a0b207..1628dcb6e45a8 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2960,7 +2960,7 @@ __call_rcu(struct rcu_head *head, rcu_callback_t func)
 	head->func = func;
 	head->next = NULL;
 	local_irq_save(flags);
-	kasan_record_aux_stack(head);
+	kasan_record_aux_stack_noalloc(head);
 	rdp = this_cpu_ptr(&rcu_data);
 
 	/* Add the callback to our list. */
@@ -3497,7 +3497,7 @@ void kvfree_call_rcu(struct rcu_head *head, rcu_callback_t func)
 		goto unlock_return;
 	}
 
-	kasan_record_aux_stack(ptr);
+	kasan_record_aux_stack_noalloc(ptr);
 	success = kvfree_call_rcu_add_ptr_to_bulk(krcp, ptr);
 	if (!success) {
 		run_page_cache_worker(krcp);
-- 
GitLab


From 7df783b8779ae4ded349123987eaed83de60ff5c Mon Sep 17 00:00:00 2001
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: Fri, 5 Nov 2021 13:35:53 -0700
Subject: [PATCH 3787/4878] UPSTREAM: kasan: fix tag for large allocations when
 using CONFIG_SLAB

If an object is allocated on a tail page of a multi-page slab, kasan
will get the wrong tag because page->s_mem is NULL for tail pages.  I'm
not quite sure what the user-visible effect of this might be.

Link: https://lkml.kernel.org/r/20211001024105.3217339-1-willy@infradead.org
Fixes: 7f94ffbc4c6a ("kasan: add hooks implementation for tag-based mode")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 820a1e6e87ccaa6c0c77ac7d79d05beec3f8cb88)
Bug: 217222520
Change-Id: I833cafb6607f65f6f0235c4b51d00a5dee95718a
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index ac7646c7c36b4..78052713d6f52 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -295,7 +295,7 @@ static inline u8 assign_tag(struct kmem_cache *cache,
 	/* For caches that either have a constructor or SLAB_TYPESAFE_BY_RCU: */
 #ifdef CONFIG_SLAB
 	/* For SLAB assign tags based on the object index in the freelist. */
-	return (u8)obj_to_index(cache, virt_to_page(object), (void *)object);
+	return (u8)obj_to_index(cache, virt_to_head_page(object), (void *)object);
 #else
 	/*
 	 * For SLUB assign a random tag during slab creation, otherwise reuse
-- 
GitLab


From 61edf4d978454753be2a33eebd28d2068a9e239f Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <pcc@google.com>
Date: Fri, 5 Nov 2021 13:35:56 -0700
Subject: [PATCH 3788/4878] UPSTREAM: kasan: test: add memcpy test that avoids
 out-of-bounds write

With HW tag-based KASAN, error checks are performed implicitly by the
load and store instructions in the memcpy implementation.  A failed
check results in tag checks being disabled and execution will keep
going.  As a result, under HW tag-based KASAN, prior to commit
1b0668be62cf ("kasan: test: disable kmalloc_memmove_invalid_size for
HW_TAGS"), this memcpy would end up corrupting memory until it hits an
inaccessible page and causes a kernel panic.

This is a pre-existing issue that was revealed by commit 285133040e6c
("arm64: Import latest memcpy()/memmove() implementation") which changed
the memcpy implementation from using signed comparisons (incorrectly,
resulting in the memcpy being terminated early for negative sizes) to
using unsigned comparisons.

It is unclear how this could be handled by memcpy itself in a reasonable
way.  One possibility would be to add an exception handler that would
force memcpy to return if a tag check fault is detected -- this would
make the behavior roughly similar to generic and SW tag-based KASAN.
However, this wouldn't solve the problem for asynchronous mode and also
makes memcpy behavior inconsistent with manually copying data.

This test was added as a part of a series that taught KASAN to detect
negative sizes in memory operations, see commit 8cceeff48f23 ("kasan:
detect negative size in memory operation function").  Therefore we
should keep testing for negative sizes with generic and SW tag-based
KASAN.  But there is some value in testing small memcpy overflows, so
let's add another test with memcpy that does not destabilize the kernel
by performing out-of-bounds writes, and run it in all modes.

Link: https://linux-review.googlesource.com/id/I048d1e6a9aff766c4a53f989fb0c83de68923882
Link: https://lkml.kernel.org/r/20210910211356.3603758-1-pcc@google.com
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 758cabae312d3aded781aacc6d0c946b299c52df)
Bug: 217222520
Change-Id: I2cde4d706018889c635e290c8f94884688cba172
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index c43076ee7db56..6a5066a7542b0 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -497,7 +497,7 @@ static void kmalloc_oob_in_memset(struct kunit *test)
 	kfree(ptr);
 }
 
-static void kmalloc_memmove_invalid_size(struct kunit *test)
+static void kmalloc_memmove_negative_size(struct kunit *test)
 {
 	char *ptr;
 	size_t size = 64;
@@ -519,6 +519,21 @@ static void kmalloc_memmove_invalid_size(struct kunit *test)
 	kfree(ptr);
 }
 
+static void kmalloc_memmove_invalid_size(struct kunit *test)
+{
+	char *ptr;
+	size_t size = 64;
+	volatile size_t invalid_size = size;
+
+	ptr = kmalloc(size, GFP_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
+
+	memset((char *)ptr, 0, 64);
+	KUNIT_EXPECT_KASAN_FAIL(test,
+		memmove((char *)ptr, (char *)ptr + 4, invalid_size));
+	kfree(ptr);
+}
+
 static void kmalloc_uaf(struct kunit *test)
 {
 	char *ptr;
@@ -1133,6 +1148,7 @@ static struct kunit_case kasan_kunit_test_cases[] = {
 	KUNIT_CASE(kmalloc_oob_memset_4),
 	KUNIT_CASE(kmalloc_oob_memset_8),
 	KUNIT_CASE(kmalloc_oob_memset_16),
+	KUNIT_CASE(kmalloc_memmove_negative_size),
 	KUNIT_CASE(kmalloc_memmove_invalid_size),
 	KUNIT_CASE(kmalloc_uaf),
 	KUNIT_CASE(kmalloc_uaf_memset),
-- 
GitLab


From 563bc1286b3ed3f06398bbc026cacae1fb8158fa Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Fri, 5 Nov 2021 13:36:12 -0700
Subject: [PATCH 3789/4878] UPSTREAM: kasan: test: bypass __alloc_size checks

Intentional overflows, as performed by the KASAN tests, are detected at
compile time[1] (instead of only at run-time) with the addition of
__alloc_size.  Fix this by forcing the compiler into not being able to
trust the size used following the kmalloc()s.

[1] https://lore.kernel.org/lkml/20211005184717.65c6d8eb39350395e387b71f@linux-foundation.org

Link: https://lkml.kernel.org/r/20211006181544.1670992-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit d73dad4eb5ad8c31ac9cf358eb5a55825bafe706)
Bug: 217222520
Change-Id: Icf4b846b993a93a9fc27884c729d000e204ad5f6
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c        | 8 +++++++-
 lib/test_kasan_module.c | 2 ++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 6a5066a7542b0..30ae3dd85242c 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -444,6 +444,7 @@ static void kmalloc_oob_memset_2(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 1, 0, 2));
 	kfree(ptr);
 }
@@ -456,6 +457,7 @@ static void kmalloc_oob_memset_4(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 3, 0, 4));
 	kfree(ptr);
 }
@@ -468,6 +470,7 @@ static void kmalloc_oob_memset_8(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 7, 0, 8));
 	kfree(ptr);
 }
@@ -480,6 +483,7 @@ static void kmalloc_oob_memset_16(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test, memset(ptr + size - 15, 0, 16));
 	kfree(ptr);
 }
@@ -492,6 +496,7 @@ static void kmalloc_oob_in_memset(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 				memset(ptr, 0, size + KASAN_GRANULE_SIZE));
 	kfree(ptr);
@@ -501,7 +506,7 @@ static void kmalloc_memmove_negative_size(struct kunit *test)
 {
 	char *ptr;
 	size_t size = 64;
-	volatile size_t invalid_size = -2;
+	size_t invalid_size = -2;
 
 	/*
 	 * Hardware tag-based mode doesn't check memmove for negative size.
@@ -514,6 +519,7 @@ static void kmalloc_memmove_negative_size(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
 	memset((char *)ptr, 0, 64);
+	OPTIMIZER_HIDE_VAR(invalid_size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		memmove((char *)ptr, (char *)ptr + 4, invalid_size));
 	kfree(ptr);
diff --git a/lib/test_kasan_module.c b/lib/test_kasan_module.c
index 7ebf433edef3b..b112cbc835e90 100644
--- a/lib/test_kasan_module.c
+++ b/lib/test_kasan_module.c
@@ -35,6 +35,8 @@ static noinline void __init copy_user_test(void)
 		return;
 	}
 
+	OPTIMIZER_HIDE_VAR(size);
+
 	pr_info("out-of-bounds in copy_from_user()\n");
 	unused = copy_from_user(kmem, usermem, size + 1);
 
-- 
GitLab


From cbfdd7f3c28e7473b4d5f5d98e9789715bf82dc8 Mon Sep 17 00:00:00 2001
From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Mon, 8 Nov 2021 18:34:05 -0800
Subject: [PATCH 3790/4878] UPSTREAM: mm: kasan: use is_kernel() helper

Directly use is_kernel() helper in kernel_or_module_addr().

Link: https://lkml.kernel.org/r/20210930071143.63410-8-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 3298cbe8046a964d62bb920af3b64121fba50b55)
Bug: 217222520
Change-Id: I18cd927e373d108ffde8caba3a41b82a41c7ffb3
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/report.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 9da071ad930c9..5f22ddfa2d7a1 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -235,7 +235,7 @@ static void describe_object(struct kmem_cache *cache, void *object,
 
 static inline bool kernel_or_module_addr(const void *addr)
 {
-	if (addr >= (void *)_stext && addr < (void *)_end)
+	if (is_kernel((unsigned long)addr))
 		return true;
 	if (is_module_address((unsigned long)addr))
 		return true;
-- 
GitLab


From 9556fe9213e19c4813929bdf8857eed236f9811a Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Wed, 10 Nov 2021 20:32:49 -0800
Subject: [PATCH 3791/4878] UPSTREAM: kasan: add kasan mode messages when kasan
 init

There are multiple kasan modes.  It makes sense that we add some
messages to know which kasan mode is active when booting up [1].

Link: https://bugzilla.kernel.org/show_bug.cgi?id=212195 [1]
Link: https://lkml.kernel.org/r/20211020094850.4113-1-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Yee Lee <yee.lee@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit b873e986816a0b8408c177b2c52a6915cca8713c)
Bug: 217222520
Change-Id: I9038f7b58e9ccb6d55cb6d18724dce245b0b7205
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/mm/kasan_init.c |  2 +-
 mm/kasan/hw_tags.c         | 14 +++++++++++++-
 mm/kasan/sw_tags.c         |  2 +-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 995ac7540e6a5..dbe4101d03869 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -294,7 +294,7 @@ void __init kasan_init(void)
 	kasan_init_depth();
 #if defined(CONFIG_KASAN_GENERIC)
 	/* CONFIG_KASAN_SW_TAGS also requires kasan_init_sw_tags(). */
-	pr_info("KernelAddressSanitizer initialized\n");
+	pr_info("KernelAddressSanitizer initialized (generic)\n");
 #endif
 }
 
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index dc892119e88f4..7355cb534e4f8 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -106,6 +106,16 @@ static int __init early_kasan_flag_stacktrace(char *arg)
 }
 early_param("kasan.stacktrace", early_kasan_flag_stacktrace);
 
+static inline const char *kasan_mode_info(void)
+{
+	if (kasan_mode == KASAN_MODE_ASYNC)
+		return "async";
+	else if (kasan_mode == KASAN_MODE_ASYMM)
+		return "asymm";
+	else
+		return "sync";
+}
+
 /* kasan_init_hw_tags_cpu() is called for each CPU. */
 void kasan_init_hw_tags_cpu(void)
 {
@@ -177,7 +187,9 @@ void __init kasan_init_hw_tags(void)
 		break;
 	}
 
-	pr_info("KernelAddressSanitizer initialized\n");
+	pr_info("KernelAddressSanitizer initialized (hw-tags, mode=%s, stacktrace=%s)\n",
+		kasan_mode_info(),
+		kasan_stack_collection_enabled() ? "on" : "off");
 }
 
 void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags)
diff --git a/mm/kasan/sw_tags.c b/mm/kasan/sw_tags.c
index bd3f540feb472..77f13f391b577 100644
--- a/mm/kasan/sw_tags.c
+++ b/mm/kasan/sw_tags.c
@@ -42,7 +42,7 @@ void __init kasan_init_sw_tags(void)
 	for_each_possible_cpu(cpu)
 		per_cpu(prng_state, cpu) = (u32)get_cycles();
 
-	pr_info("KernelAddressSanitizer initialized\n");
+	pr_info("KernelAddressSanitizer initialized (sw-tags)\n");
 }
 
 /*
-- 
GitLab


From 4d429579b2f9e47132b0e0c792e60031ebfa8947 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Fri, 19 Nov 2021 16:43:46 -0800
Subject: [PATCH 3792/4878] UPSTREAM: kasan: test: silence intentional read
 overflow warnings

As done in commit d73dad4eb5ad ("kasan: test: bypass __alloc_size
checks") for __write_overflow warnings, also silence some more cases
that trip the __read_overflow warnings seen in 5.16-rc1[1]:

  In file included from include/linux/string.h:253,
                   from include/linux/bitmap.h:10,
                   from include/linux/cpumask.h:12,
                   from include/linux/mm_types_task.h:14,
                   from include/linux/mm_types.h:5,
                   from include/linux/page-flags.h:13,
                   from arch/arm64/include/asm/mte.h:14,
                   from arch/arm64/include/asm/pgtable.h:12,
                   from include/linux/pgtable.h:6,
                   from include/linux/kasan.h:29,
                   from lib/test_kasan.c:10:
  In function 'memcmp',
      inlined from 'kasan_memcmp' at lib/test_kasan.c:897:2:
  include/linux/fortify-string.h:263:25: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter)
    263 |                         __read_overflow();
        |                         ^~~~~~~~~~~~~~~~~
  In function 'memchr',
      inlined from 'kasan_memchr' at lib/test_kasan.c:872:2:
  include/linux/fortify-string.h:277:17: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter)
    277 |                 __read_overflow();
        |                 ^~~~~~~~~~~~~~~~~

[1] http://kisskb.ellerman.id.au/kisskb/buildresult/14660585/log/

Link: https://lkml.kernel.org/r/20211116004111.3171781-1-keescook@chromium.org
Fixes: d73dad4eb5ad ("kasan: test: bypass __alloc_size checks")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit cab71f7495f7aa639ca4b8508f4c3e426e9cb2f7)
Bug: 217222520
Change-Id: I1e521864e42b993ed5f3815c0a640ef86b8818e6
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 30ae3dd85242c..929b9bb6f1e99 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -873,6 +873,7 @@ static void kasan_memchr(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		kasan_ptr_result = memchr(ptr, '1', size + 1));
 
@@ -898,6 +899,7 @@ static void kasan_memcmp(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 	memset(arr, 0, sizeof(arr));
 
+	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		kasan_int_result = memcmp(ptr, arr, size+1));
 	kfree(ptr);
-- 
GitLab


From 3f96a67cf26cb94164ad82f3ce9099f1430331a9 Mon Sep 17 00:00:00 2001
From: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Date: Fri, 14 Jan 2022 14:04:04 -0800
Subject: [PATCH 3793/4878] UPSTREAM: kmemleak: fix kmemleak false positive
 report with HW tag-based kasan enable

With HW tag-based kasan enable, We will get the warning when we free
object whose address starts with 0xFF.

It is because kmemleak rbtree stores tagged object and this freeing
object's tag does not match with rbtree object.

In the example below, kmemleak rbtree stores the tagged object in the
kmalloc(), and kfree() gets the pointer with 0xFF tag.

Call sequence:
    ptr = kmalloc(size, GFP_KERNEL);
    page = virt_to_page(ptr);
    offset = offset_in_page(ptr);
    kfree(page_address(page) + offset);
    ptr = kmalloc(size, GFP_KERNEL);

A sequence like that may cause the warning as following:

 1) Freeing unknown object:

    In kfree(), we will get free unknown object warning in
    kmemleak_free(). Because object(0xFx) in kmemleak rbtree and
    pointer(0xFF) in kfree() have different tag.

 2) Overlap existing:

    When we allocate that object with the same hw-tag again, we will
    find the overlap in the kmemleak rbtree and kmemleak thread will be
    killed.

	kmemleak: Freeing unknown object at 0xffff000003f88000
	CPU: 5 PID: 177 Comm: cat Not tainted 5.16.0-rc1-dirty #21
	Hardware name: linux,dummy-virt (DT)
	Call trace:
	 dump_backtrace+0x0/0x1ac
	 show_stack+0x1c/0x30
	 dump_stack_lvl+0x68/0x84
	 dump_stack+0x1c/0x38
	 kmemleak_free+0x6c/0x70
	 slab_free_freelist_hook+0x104/0x200
	 kmem_cache_free+0xa8/0x3d4
	 test_version_show+0x270/0x3a0
	 module_attr_show+0x28/0x40
	 sysfs_kf_seq_show+0xb0/0x130
	 kernfs_seq_show+0x30/0x40
	 seq_read_iter+0x1bc/0x4b0
	 seq_read_iter+0x1bc/0x4b0
	 kernfs_fop_read_iter+0x144/0x1c0
	 generic_file_splice_read+0xd0/0x184
	 do_splice_to+0x90/0xe0
	 splice_direct_to_actor+0xb8/0x250
	 do_splice_direct+0x88/0xd4
	 do_sendfile+0x2b0/0x344
	 __arm64_sys_sendfile64+0x164/0x16c
	 invoke_syscall+0x48/0x114
	 el0_svc_common.constprop.0+0x44/0xec
	 do_el0_svc+0x74/0x90
	 el0_svc+0x20/0x80
	 el0t_64_sync_handler+0x1a8/0x1b0
	 el0t_64_sync+0x1ac/0x1b0
	...
	kmemleak: Cannot insert 0xf2ff000003f88000 into the object search tree (overlaps existing)
	CPU: 5 PID: 178 Comm: cat Not tainted 5.16.0-rc1-dirty #21
	Hardware name: linux,dummy-virt (DT)
	Call trace:
	 dump_backtrace+0x0/0x1ac
	 show_stack+0x1c/0x30
	 dump_stack_lvl+0x68/0x84
	 dump_stack+0x1c/0x38
	 create_object.isra.0+0x2d8/0x2fc
	 kmemleak_alloc+0x34/0x40
	 kmem_cache_alloc+0x23c/0x2f0
	 test_version_show+0x1fc/0x3a0
	 module_attr_show+0x28/0x40
	 sysfs_kf_seq_show+0xb0/0x130
	 kernfs_seq_show+0x30/0x40
	 seq_read_iter+0x1bc/0x4b0
	 kernfs_fop_read_iter+0x144/0x1c0
	 generic_file_splice_read+0xd0/0x184
	 do_splice_to+0x90/0xe0
	 splice_direct_to_actor+0xb8/0x250
	 do_splice_direct+0x88/0xd4
	 do_sendfile+0x2b0/0x344
	 __arm64_sys_sendfile64+0x164/0x16c
	 invoke_syscall+0x48/0x114
	 el0_svc_common.constprop.0+0x44/0xec
	 do_el0_svc+0x74/0x90
	 el0_svc+0x20/0x80
	 el0t_64_sync_handler+0x1a8/0x1b0
	 el0t_64_sync+0x1ac/0x1b0
	kmemleak: Kernel memory leak detector disabled
	kmemleak: Object 0xf2ff000003f88000 (size 128):
	kmemleak:   comm "cat", pid 177, jiffies 4294921177
	kmemleak:   min_count = 1
	kmemleak:   count = 0
	kmemleak:   flags = 0x1
	kmemleak:   checksum = 0
	kmemleak:   backtrace:
	     kmem_cache_alloc+0x23c/0x2f0
	     test_version_show+0x1fc/0x3a0
	     module_attr_show+0x28/0x40
	     sysfs_kf_seq_show+0xb0/0x130
	     kernfs_seq_show+0x30/0x40
	     seq_read_iter+0x1bc/0x4b0
	     kernfs_fop_read_iter+0x144/0x1c0
	     generic_file_splice_read+0xd0/0x184
	     do_splice_to+0x90/0xe0
	     splice_direct_to_actor+0xb8/0x250
	     do_splice_direct+0x88/0xd4
	     do_sendfile+0x2b0/0x344
	     __arm64_sys_sendfile64+0x164/0x16c
	     invoke_syscall+0x48/0x114
	     el0_svc_common.constprop.0+0x44/0xec
	     do_el0_svc+0x74/0x90
	kmemleak: Automatic memory scanning thread ended

[akpm@linux-foundation.org: whitespace tweak]

Link: https://lkml.kernel.org/r/20211118054426.4123-1-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Doug Berger <opendmb@gmail.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit ad1a3e15fcd3b8ba0f5f60f6a2fe3938274fdf65)
Bug: 217222520
Change-Id: I82f010d0203f9f9a3fc9a4dbffe6b15dd1d8bb04
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kmemleak.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 5edbe6a75561c..c8dc0470efa6d 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -380,15 +380,20 @@ static void dump_object_info(struct kmemleak_object *object)
 static struct kmemleak_object *lookup_object(unsigned long ptr, int alias)
 {
 	struct rb_node *rb = object_tree_root.rb_node;
+	unsigned long untagged_ptr = (unsigned long)kasan_reset_tag((void *)ptr);
 
 	while (rb) {
-		struct kmemleak_object *object =
-			rb_entry(rb, struct kmemleak_object, rb_node);
-		if (ptr < object->pointer)
+		struct kmemleak_object *object;
+		unsigned long untagged_objp;
+
+		object = rb_entry(rb, struct kmemleak_object, rb_node);
+		untagged_objp = (unsigned long)kasan_reset_tag((void *)object->pointer);
+
+		if (untagged_ptr < untagged_objp)
 			rb = object->rb_node.rb_left;
-		else if (object->pointer + object->size <= ptr)
+		else if (untagged_objp + object->size <= untagged_ptr)
 			rb = object->rb_node.rb_right;
-		else if (object->pointer == ptr || alias)
+		else if (untagged_objp == untagged_ptr || alias)
 			return object;
 		else {
 			kmemleak_warn("Found object by alias at 0x%08lx\n",
@@ -575,6 +580,7 @@ static struct kmemleak_object *create_object(unsigned long ptr, size_t size,
 	struct kmemleak_object *object, *parent;
 	struct rb_node **link, *rb_parent;
 	unsigned long untagged_ptr;
+	unsigned long untagged_objp;
 
 	object = mem_pool_alloc(gfp);
 	if (!object) {
@@ -628,9 +634,10 @@ static struct kmemleak_object *create_object(unsigned long ptr, size_t size,
 	while (*link) {
 		rb_parent = *link;
 		parent = rb_entry(rb_parent, struct kmemleak_object, rb_node);
-		if (ptr + size <= parent->pointer)
+		untagged_objp = (unsigned long)kasan_reset_tag((void *)parent->pointer);
+		if (untagged_ptr + size <= untagged_objp)
 			link = &parent->rb_node.rb_left;
-		else if (parent->pointer + parent->size <= ptr)
+		else if (untagged_objp + parent->size <= untagged_ptr)
 			link = &parent->rb_node.rb_right;
 		else {
 			kmemleak_stop("Cannot insert 0x%lx into the object search tree (overlaps existing)\n",
-- 
GitLab


From f26b7aaceae3d334db6c21f53bea1ac7071e263c Mon Sep 17 00:00:00 2001
From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Fri, 14 Jan 2022 14:04:11 -0800
Subject: [PATCH 3794/4878] UPSTREAM: mm: defer kmemleak object creation of
 module_alloc()

Yongqiang reports a kmemleak panic when module insmod/rmmod with KASAN
enabled(without KASAN_VMALLOC) on x86[1].

When the module area allocates memory, it's kmemleak_object is created
successfully, but the KASAN shadow memory of module allocation is not
ready, so when kmemleak scan the module's pointer, it will panic due to
no shadow memory with KASAN check.

  module_alloc
    __vmalloc_node_range
      kmemleak_vmalloc
				kmemleak_scan
				  update_checksum
    kasan_module_alloc
      kmemleak_ignore

Note, there is no problem if KASAN_VMALLOC enabled, the modules area
entire shadow memory is preallocated.  Thus, the bug only exits on ARCH
which supports dynamic allocation of module area per module load, for
now, only x86/arm64/s390 are involved.

Add a VM_DEFER_KMEMLEAK flags, defer vmalloc'ed object register of
kmemleak in module_alloc() to fix this issue.

[1] https://lore.kernel.org/all/6d41e2b9-4692-5ec4-b1cd-cbe29ae89739@huawei.com/

[wangkefeng.wang@huawei.com: fix build]
  Link: https://lkml.kernel.org/r/20211125080307.27225-1-wangkefeng.wang@huawei.com
[akpm@linux-foundation.org: simplify ifdefs, per Andrey]
  Link: https://lkml.kernel.org/r/CA+fCnZcnwJHUQq34VuRxpdoY6_XbJCDJ-jopksS5Eia4PijPzw@mail.gmail.com

Link: https://lkml.kernel.org/r/20211124142034.192078-1-wangkefeng.wang@huawei.com
Fixes: 793213a82de4 ("s390/kasan: dynamic shadow mem allocation for modules")
Fixes: 39d114ddc682 ("arm64: add KASAN support")
Fixes: bebf56a1b176 ("kasan: enable instrumentation of global variables")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reported-by: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 60115fa54ad7b913b7cb5844e6b7ffeb842d55f2)
Bug: 217222520
Change-Id: Ia20d932a0d56f37ed490a35ed9187ae8026f97fe
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/module.c | 4 ++--
 arch/s390/kernel/module.c  | 5 +++--
 arch/x86/kernel/module.c   | 7 ++++---
 include/linux/kasan.h      | 4 ++--
 include/linux/vmalloc.h    | 7 +++++++
 mm/kasan/shadow.c          | 9 +++++++--
 mm/vmalloc.c               | 3 ++-
 7 files changed, 27 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index b5ec010c481f3..309a27553c875 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -36,7 +36,7 @@ void *module_alloc(unsigned long size)
 		module_alloc_end = MODULES_END;
 
 	p = __vmalloc_node_range(size, MODULE_ALIGN, module_alloc_base,
-				module_alloc_end, gfp_mask, PAGE_KERNEL, 0,
+				module_alloc_end, gfp_mask, PAGE_KERNEL, VM_DEFER_KMEMLEAK,
 				NUMA_NO_NODE, __builtin_return_address(0));
 
 	if (!p && IS_ENABLED(CONFIG_ARM64_MODULE_PLTS) &&
@@ -58,7 +58,7 @@ void *module_alloc(unsigned long size)
 				PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 
-	if (p && (kasan_module_alloc(p, size) < 0)) {
+	if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
 		vfree(p);
 		return NULL;
 	}
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index b81bc96216b97..03f29da8f9a54 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -34,14 +34,15 @@
 
 void *module_alloc(unsigned long size)
 {
+	gfp_t gfp_mask = GFP_KERNEL;
 	void *p;
 
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	p = __vmalloc_node_range(size, MODULE_ALIGN, MODULES_VADDR, MODULES_END,
-				 GFP_KERNEL, PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+				 gfp_mask, PAGE_KERNEL_EXEC, VM_DEFER_KMEMLEAK, NUMA_NO_NODE,
 				 __builtin_return_address(0));
-	if (p && (kasan_module_alloc(p, size) < 0)) {
+	if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
 		vfree(p);
 		return NULL;
 	}
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index c98c220d39a96..af6b14b52b8f6 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -67,6 +67,7 @@ static unsigned long int get_module_load_offset(void)
 
 void *module_alloc(unsigned long size)
 {
+	gfp_t gfp_mask = GFP_KERNEL;
 	void *p;
 
 	if (PAGE_ALIGN(size) > MODULES_LEN)
@@ -74,10 +75,10 @@ void *module_alloc(unsigned long size)
 
 	p = __vmalloc_node_range(size, MODULE_ALIGN,
 				    MODULES_VADDR + get_module_load_offset(),
-				    MODULES_END, GFP_KERNEL,
-				    PAGE_KERNEL, 0, NUMA_NO_NODE,
+				    MODULES_END, gfp_mask,
+				    PAGE_KERNEL, VM_DEFER_KMEMLEAK, NUMA_NO_NODE,
 				    __builtin_return_address(0));
-	if (p && (kasan_module_alloc(p, size) < 0)) {
+	if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
 		vfree(p);
 		return NULL;
 	}
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 379feee2a25b2..44524e086b358 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -468,12 +468,12 @@ static inline void kasan_release_vmalloc(unsigned long start,
  * allocations with real shadow memory. With KASAN vmalloc, the special
  * case is unnecessary, as the work is handled in the generic case.
  */
-int kasan_module_alloc(void *addr, size_t size);
+int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask);
 void kasan_free_shadow(const struct vm_struct *vm);
 
 #else /* (CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS) && !CONFIG_KASAN_VMALLOC */
 
-static inline int kasan_module_alloc(void *addr, size_t size) { return 0; }
+static inline int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask) { return 0; }
 static inline void kasan_free_shadow(const struct vm_struct *vm) {}
 
 #endif /* (CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS) && !CONFIG_KASAN_VMALLOC */
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 0549ca17ba6f7..1f221000f86a9 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -28,6 +28,13 @@ struct notifier_block;		/* in notifier.h */
 #define VM_FLUSH_RESET_PERMS	0x00000100	/* reset direct map and flush TLB on unmap, can't be freed in atomic context */
 #define VM_MAP_PUT_PAGES	0x00000200	/* put pages and free array in vfree */
 
+#if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \
+	!defined(CONFIG_KASAN_VMALLOC)
+#define VM_DEFER_KMEMLEAK	0x00000800	/* defer kmemleak object creation */
+#else
+#define VM_DEFER_KMEMLEAK	0
+#endif
+
 /*
  * VM_KASAN is used slighly differently depending on CONFIG_KASAN_VMALLOC.
  *
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index bbb4c02f8c4e4..d94f2d8b423d6 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -493,7 +493,7 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 
 #else /* CONFIG_KASAN_VMALLOC */
 
-int kasan_module_alloc(void *addr, size_t size)
+int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask)
 {
 	void *ret;
 	size_t scaled_size;
@@ -515,9 +515,14 @@ int kasan_module_alloc(void *addr, size_t size)
 			__builtin_return_address(0));
 
 	if (ret) {
+		struct vm_struct *vm = find_vm_area(addr);
 		__memset(ret, KASAN_SHADOW_INIT, shadow_size);
-		find_vm_area(addr)->flags |= VM_KASAN;
+		vm->flags |= VM_KASAN;
 		kmemleak_ignore(ret);
+
+		if (vm->flags & VM_DEFER_KMEMLEAK)
+			kmemleak_vmalloc(vm, size, gfp_mask);
+
 		return 0;
 	}
 
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 629ad56c328bf..9b6c978b43e62 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2582,7 +2582,8 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	clear_vm_uninitialized_flag(area);
 
 	size = PAGE_ALIGN(size);
-	kmemleak_vmalloc(area, size, gfp_mask);
+	if (!(vm_flags & VM_DEFER_KMEMLEAK))
+		kmemleak_vmalloc(area, size, gfp_mask);
 
 	return addr;
 
-- 
GitLab


From b56bd5bf93df35588acb0cf603d60ae09f38bcc7 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 14 Jan 2022 14:04:51 -0800
Subject: [PATCH 3795/4878] UPSTREAM: kasan: test: add globals
 left-out-of-bounds test

Add a test checking that KASAN generic can also detect out-of-bounds
accesses to the left of globals.

Unfortunately it seems that GCC doesn't catch this (tested GCC 10, 11).
The main difference between GCC's globals redzoning and Clang's is that
GCC relies on using increased alignment to producing padding, where
Clang's redzoning implementation actually adds real data after the
global and doesn't rely on alignment to produce padding.  I believe this
is the main reason why GCC can't reliably catch globals out-of-bounds in
this case.

Given this is now a known issue, to avoid failing the whole test suite,
skip this test case with GCC.

Link: https://lkml.kernel.org/r/20211117130714.135656-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit e5f4728767d2ec9e3eb122c74e224242d21ee650)
Bug: 217222520
Change-Id: Iba1aee23d8a63bdc68cd219b8fd35e40734d65aa
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 929b9bb6f1e99..e1c99f0be5616 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -704,7 +704,7 @@ static void kmem_cache_bulk(struct kunit *test)
 
 static char global_array[10];
 
-static void kasan_global_oob(struct kunit *test)
+static void kasan_global_oob_right(struct kunit *test)
 {
 	/*
 	 * Deliberate out-of-bounds access. To prevent CONFIG_UBSAN_LOCAL_BOUNDS
@@ -727,6 +727,20 @@ static void kasan_global_oob(struct kunit *test)
 	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);
 }
 
+static void kasan_global_oob_left(struct kunit *test)
+{
+	char *volatile array = global_array;
+	char *p = array - 3;
+
+	/*
+	 * GCC is known to fail this test, skip it.
+	 * See https://bugzilla.kernel.org/show_bug.cgi?id=215051.
+	 */
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_CC_IS_CLANG);
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_GENERIC);
+	KUNIT_EXPECT_KASAN_FAIL(test, *(volatile char *)p);
+}
+
 /* Check that ksize() makes the whole object accessible. */
 static void ksize_unpoisons_memory(struct kunit *test)
 {
@@ -1166,7 +1180,8 @@ static struct kunit_case kasan_kunit_test_cases[] = {
 	KUNIT_CASE(kmem_cache_oob),
 	KUNIT_CASE(kmem_cache_accounted),
 	KUNIT_CASE(kmem_cache_bulk),
-	KUNIT_CASE(kasan_global_oob),
+	KUNIT_CASE(kasan_global_oob_right),
+	KUNIT_CASE(kasan_global_oob_left),
 	KUNIT_CASE(kasan_stack_oob),
 	KUNIT_CASE(kasan_alloca_oob_left),
 	KUNIT_CASE(kasan_alloca_oob_right),
-- 
GitLab


From 4a881bebf135118cabfc9fef5e2947251449272e Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 14 Jan 2022 14:04:54 -0800
Subject: [PATCH 3796/4878] BACKPORT: kasan: add ability to detect
 double-kmem_cache_destroy()

(Backport: adjacent lines changed in kmem_cache_destroy.)

Because mm/slab_common.c is not instrumented with software KASAN modes,
it is not possible to detect use-after-free of the kmem_cache passed
into kmem_cache_destroy().  In particular, because of the s->refcount--
and subsequent early return if non-zero, KASAN would never be able to
see the double-free via kmem_cache_free(kmem_cache, s).  To be able to
detect a double-kmem_cache_destroy(), check accessibility of the
kmem_cache, and in case of failure return early.

While KASAN_HW_TAGS is able to detect such bugs, by checking
accessibility and returning early we fail more gracefully and also avoid
corrupting reused objects (where tags mismatch).

A recent case of a double-kmem_cache_destroy() was detected by KFENCE:
https://lkml.kernel.org/r/0000000000003f654905c168b09d@google.com, which
was not detectable by software KASAN modes.

Link: https://lkml.kernel.org/r/20211119142219.1519617-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit bed0a9b591492bb285ea88cd221e0412031396ca)
Bug: 217222520
Change-Id: I6a3cbe5b92ea806c7c1e447a64c5f36abd679593
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/slab_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slab_common.c b/mm/slab_common.c
index 54a4be9a862a6..d7550c9efb1a2 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -488,7 +488,7 @@ void kmem_cache_destroy(struct kmem_cache *s)
 {
 	int err;
 
-	if (unlikely(!s))
+	if (unlikely(!s) || !kasan_check_byte(s))
 		return;
 
 	get_online_cpus();
-- 
GitLab


From f8e5c76598599932782de4dd1d78a017400928c4 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 14 Jan 2022 14:04:57 -0800
Subject: [PATCH 3797/4878] UPSTREAM: kasan: test: add test case for
 double-kmem_cache_destroy()

Add a test case for double-kmem_cache_destroy() detection.

Link: https://lkml.kernel.org/r/20211119142219.1519617-2-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f98f966cd75002a71caec1b6d209da5762c0efac)
Bug: 217222520
Change-Id: Ifbb643a7dc2c7a78f5596cc7521c5723146b882e
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index e1c99f0be5616..98e74722b8e89 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -870,6 +870,16 @@ static void kmem_cache_invalid_free(struct kunit *test)
 	kmem_cache_destroy(cache);
 }
 
+static void kmem_cache_double_destroy(struct kunit *test)
+{
+	struct kmem_cache *cache;
+
+	cache = kmem_cache_create("test_cache", 200, 0, 0, NULL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cache);
+	kmem_cache_destroy(cache);
+	KUNIT_EXPECT_KASAN_FAIL(test, kmem_cache_destroy(cache));
+}
+
 static void kasan_memchr(struct kunit *test)
 {
 	char *ptr;
@@ -1189,6 +1199,7 @@ static struct kunit_case kasan_kunit_test_cases[] = {
 	KUNIT_CASE(ksize_uaf),
 	KUNIT_CASE(kmem_cache_double_free),
 	KUNIT_CASE(kmem_cache_invalid_free),
+	KUNIT_CASE(kmem_cache_double_destroy),
 	KUNIT_CASE(kasan_memchr),
 	KUNIT_CASE(kasan_memcmp),
 	KUNIT_CASE(kasan_strings),
-- 
GitLab


From dbd8f25727546f94c5ff1c0bb3a10b348e5c356b Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Fri, 14 Jan 2022 14:05:01 -0800
Subject: [PATCH 3798/4878] BACKPORT: kasan: fix quarantine conflicting with
 init_on_free

(Backport: conflicts due to not backported grammar fixes.)

KASAN's quarantine might save its metadata inside freed objects.  As
this happens after the memory is zeroed by the slab allocator when
init_on_free is enabled, the memory coming out of quarantine is not
properly zeroed.

This causes lib/test_meminit.c tests to fail with Generic KASAN.

Zero the metadata when the object is removed from quarantine.

Link: https://lkml.kernel.org/r/2805da5df4b57138fdacd671f5d227d58950ba54.1640037083.git.andreyknvl@google.com
Fixes: 6471384af2a6 ("mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 26dca996ea7b1ac7008b6b6063fc88b849e3ac3e)
Bug: 217222520
Change-Id: I725f52775b88930e2d3805ec9cba0ddd18f405ad
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/quarantine.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mm/kasan/quarantine.c b/mm/kasan/quarantine.c
index 728fb24c5683d..04dc2cfaa4ae2 100644
--- a/mm/kasan/quarantine.c
+++ b/mm/kasan/quarantine.c
@@ -132,11 +132,22 @@ static void *qlink_to_object(struct qlist_node *qlink, struct kmem_cache *cache)
 static void qlink_free(struct qlist_node *qlink, struct kmem_cache *cache)
 {
 	void *object = qlink_to_object(qlink, cache);
+	struct kasan_free_meta *meta = kasan_get_free_meta(cache, object);
 	unsigned long flags;
 
 	if (IS_ENABLED(CONFIG_SLAB))
 		local_irq_save(flags);
 
+	/*
+	 * If init_on_free is enabled and KASAN's free metadata is stored in
+	 * the object, zero the metadata. Otherwise, the object's memory will
+	 * not be properly zeroed, as KASAN saves the metadata after the slab
+	 * allocator zeroes the object.
+	 */
+	if (slab_want_init_on_free(cache) &&
+	    cache->kasan_info.free_meta_offset == 0)
+		memzero_explicit(meta, sizeof(*meta));
+
 	/*
 	 * As the object now gets freed from the quaratine, assume that its
 	 * free track is no longer valid.
-- 
GitLab


From 5934916ec037a2151925f43a1a075343b0fc8181 Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 21 Jan 2022 22:14:31 -0800
Subject: [PATCH 3799/4878] UPSTREAM: lib/stackdepot: always do
 filter_irq_stacks() in stack_depot_save()

The non-interrupt portion of interrupt stack traces before interrupt
entry is usually arbitrary.  Therefore, saving stack traces of
interrupts (that include entries before interrupt entry) to stack depot
leads to unbounded stackdepot growth.

As such, use of filter_irq_stacks() is a requirement to ensure
stackdepot can efficiently deduplicate interrupt stacks.

Looking through all current users of stack_depot_save(), none (except
KASAN) pass the stack trace through filter_irq_stacks() before passing
it on to stack_depot_save().

Rather than adding filter_irq_stacks() to all current users of
stack_depot_save(), it became clear that stack_depot_save() should
simply do filter_irq_stacks().

Link: https://lkml.kernel.org/r/20211130095727.2378739-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Vijayanand Jitta <vjitta@codeaurora.org>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Imran Khan <imran.f.khan@oracle.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit e940066089490efde86abc519593be84362f4e53)
Bug: 217222520
Change-Id: I3176c61b5a1170096db036f3b7bda081bc6f838e
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/stackdepot.c  | 13 +++++++++++++
 mm/kasan/common.c |  1 -
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/stackdepot.c b/lib/stackdepot.c
index b9cb9a5081124..aa3f4c9faefee 100644
--- a/lib/stackdepot.c
+++ b/lib/stackdepot.c
@@ -260,6 +260,9 @@ EXPORT_SYMBOL_GPL(stack_depot_fetch);
  * (allocates using GFP flags of @alloc_flags). If @can_alloc is %false, avoids
  * any allocations and will fail if no space is left to store the stack trace.
  *
+ * If the stack trace in @entries is from an interrupt, only the portion up to
+ * interrupt entry is saved.
+ *
  * Context: Any context, but setting @can_alloc to %false is required if
  *          alloc_pages() cannot be used from the current context. Currently
  *          this is the case from contexts where neither %GFP_ATOMIC nor
@@ -278,6 +281,16 @@ depot_stack_handle_t __stack_depot_save(unsigned long *entries,
 	unsigned long flags;
 	u32 hash;
 
+	/*
+	 * If this stack trace is from an interrupt, including anything before
+	 * interrupt entry usually leads to unbounded stackdepot growth.
+	 *
+	 * Because use of filter_irq_stacks() is a requirement to ensure
+	 * stackdepot can efficiently deduplicate interrupt stacks, always
+	 * filter_irq_stacks() to simplify all callers' use of stackdepot.
+	 */
+	nr_entries = filter_irq_stacks(entries, nr_entries);
+
 	if (unlikely(nr_entries == 0) || stack_depot_disable)
 		goto fast_exit;
 
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index 78052713d6f52..bea52c8578719 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -36,7 +36,6 @@ depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc)
 	unsigned int nr_entries;
 
 	nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 0);
-	nr_entries = filter_irq_stacks(entries, nr_entries);
 	return __stack_depot_save(entries, nr_entries, flags, can_alloc);
 }
 
-- 
GitLab


From 39b0871d52e1d88bac88bc02599f3e5c1b74611b Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Sat, 29 Jan 2022 13:41:11 -0800
Subject: [PATCH 3800/4878] UPSTREAM: kasan: test: fix compatibility with
 FORTIFY_SOURCE

With CONFIG_FORTIFY_SOURCE enabled, string functions will also perform
dynamic checks using __builtin_object_size(ptr), which when failed will
panic the kernel.

Because the KASAN test deliberately performs out-of-bounds operations,
the kernel panics with FORTIFY_SOURCE, for example:

 | kernel BUG at lib/string_helpers.c:910!
 | invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
 | CPU: 1 PID: 137 Comm: kunit_try_catch Tainted: G    B             5.16.0-rc3+ #3
 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
 | RIP: 0010:fortify_panic+0x19/0x1b
 | ...
 | Call Trace:
 |  kmalloc_oob_in_memset.cold+0x16/0x16
 |  ...

Fix it by also hiding `ptr` from the optimizer, which will ensure that
__builtin_object_size() does not return a valid size, preventing
fortified string functions from panicking.

Link: https://lkml.kernel.org/r/20220124160744.1244685-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Nico Pache <npache@redhat.com>
Reviewed-by: Nico Pache <npache@redhat.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 09c6304e38e440b93a9ebf3f3cf75cd6cb529f91)
Bug: 217222520
Change-Id: I51ef8a2fc61e4e86916cd4d83c1ca0d2d980a81d
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 98e74722b8e89..fbac0342537fa 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -496,6 +496,7 @@ static void kmalloc_oob_in_memset(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(ptr);
 	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 				memset(ptr, 0, size + KASAN_GRANULE_SIZE));
@@ -519,6 +520,7 @@ static void kmalloc_memmove_negative_size(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
 	memset((char *)ptr, 0, 64);
+	OPTIMIZER_HIDE_VAR(ptr);
 	OPTIMIZER_HIDE_VAR(invalid_size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		memmove((char *)ptr, (char *)ptr + 4, invalid_size));
@@ -535,6 +537,7 @@ static void kmalloc_memmove_invalid_size(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
 	memset((char *)ptr, 0, 64);
+	OPTIMIZER_HIDE_VAR(ptr);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		memmove((char *)ptr, (char *)ptr + 4, invalid_size));
 	kfree(ptr);
@@ -897,6 +900,7 @@ static void kasan_memchr(struct kunit *test)
 	ptr = kmalloc(size, GFP_KERNEL | __GFP_ZERO);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 
+	OPTIMIZER_HIDE_VAR(ptr);
 	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		kasan_ptr_result = memchr(ptr, '1', size + 1));
@@ -923,6 +927,7 @@ static void kasan_memcmp(struct kunit *test)
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
 	memset(arr, 0, sizeof(arr));
 
+	OPTIMIZER_HIDE_VAR(ptr);
 	OPTIMIZER_HIDE_VAR(size);
 	KUNIT_EXPECT_KASAN_FAIL(test,
 		kasan_int_result = memcmp(ptr, arr, size+1));
-- 
GitLab


From a5993a710cde8328dfe593842ff3ba97bb0a806c Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.ibm.com>
Date: Thu, 19 Aug 2021 19:04:15 -0700
Subject: [PATCH 3801/4878] UPSTREAM: mmflags.h: add missing __GFP_ZEROTAGS and
 __GFP_SKIP_KASAN_POISON names

printk("%pGg") outputs these two flags as hexadecimal number, rather
than as a string, e.g:

	GFP_KERNEL|0x1800000

Fix this by adding missing names of __GFP_ZEROTAGS and
__GFP_SKIP_KASAN_POISON flags to __def_gfpflag_names.

Link: https://lkml.kernel.org/r/20210816133502.590-1-rppt@kernel.org
Fixes: 013bb59dbb7c ("arm64: mte: handle tags zeroing at page allocation time")
Fixes: c275c5c6d50a ("kasan: disable freed user page poisoning with HW tags")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit b16ee0f9ed79fca2f2c31b13cac2ab9cf543525a)
Bug: 217222520
Change-Id: Ia69ef113997a9bbc3e05dd6160f48d984ff202b8
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/trace/events/mmflags.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 390270e00a1d1..f160484afc5ce 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -48,7 +48,9 @@
 	{(unsigned long)__GFP_WRITE,		"__GFP_WRITE"},		\
 	{(unsigned long)__GFP_RECLAIM,		"__GFP_RECLAIM"},	\
 	{(unsigned long)__GFP_DIRECT_RECLAIM,	"__GFP_DIRECT_RECLAIM"},\
-	{(unsigned long)__GFP_KSWAPD_RECLAIM,	"__GFP_KSWAPD_RECLAIM"}\
+	{(unsigned long)__GFP_KSWAPD_RECLAIM,	"__GFP_KSWAPD_RECLAIM"},\
+	{(unsigned long)__GFP_ZEROTAGS,		"__GFP_ZEROTAGS"},	\
+	{(unsigned long)__GFP_SKIP_KASAN_POISON,"__GFP_SKIP_KASAN_POISON"}\
 
 #define show_gfp_flags(flags)						\
 	(flags) ? __print_flags(flags, "|",				\
-- 
GitLab


From d0ae19b20b13c2fa5d49b90ed28ef44b39af0be7 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:45 +1100
Subject: [PATCH 3802/4878] FROMGIT: kasan, page_alloc: deduplicate
 should_skip_kasan_poison

Patch series "kasan, vmalloc, arm64: add vmalloc tagging support for SW/HW_TAGS", v6.

This patchset adds vmalloc tagging support for SW_TAGS and HW_TAGS
KASAN modes.

About half of patches are cleanups I went for along the way.  None of them
seem to be important enough to go through stable, so I decided not to
split them out into separate patches/series.

The patchset is partially based on an early version of the HW_TAGS
patchset by Vincenzo that had vmalloc support.  Thus, I added a
Co-developed-by tag into a few patches.

SW_TAGS vmalloc tagging support is straightforward.  It reuses all of the
generic KASAN machinery, but uses shadow memory to store tags instead of
magic values.  Naturally, vmalloc tagging requires adding a few
kasan_reset_tag() annotations to the vmalloc code.

HW_TAGS vmalloc tagging support stands out.  HW_TAGS KASAN is based on Arm
MTE, which can only assigns tags to physical memory.  As a result, HW_TAGS
KASAN only tags vmalloc() allocations, which are backed by page_alloc
memory.  It ignores vmap() and others.

This patch (of 39):

Currently, should_skip_kasan_poison() has two definitions: one for when
CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, one for when it's not.

Instead of duplicating the checks, add a deferred_pages_enabled() helper
and use it in a single should_skip_kasan_poison() definition.

Also move should_skip_kasan_poison() closer to its caller and clarify all
conditions in the comment.

Link: https://lkml.kernel.org/r/cover.1643047180.git.andreyknvl@google.com
Link: https://lkml.kernel.org/r/658b79f5fb305edaf7dc16bc52ea870d3220d4a8.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 64748cf67a6b75dde881e282529dbf6a22979786
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ie47a5a877f515e6174a2a5db97f3e5d7a9a3245b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 55 +++++++++++++++++++++++++++++--------------------
 1 file changed, 33 insertions(+), 22 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4b04f4a7bed1c..f14a322a5c4f4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -382,25 +382,9 @@ int page_group_by_mobility_disabled __read_mostly;
  */
 static DEFINE_STATIC_KEY_TRUE(deferred_pages);
 
-/*
- * Calling kasan_poison_pages() only after deferred memory initialization
- * has completed. Poisoning pages during deferred memory init will greatly
- * lengthen the process and cause problem in large memory systems as the
- * deferred pages initialization is done with interrupt disabled.
- *
- * Assuming that there will be no reference to those newly initialized
- * pages before they are ever allocated, this should have no effect on
- * KASAN memory tracking as the poison will be properly inserted at page
- * allocation time. The only corner case is when pages are allocated by
- * on-demand allocation and then freed again before the deferred pages
- * initialization is done, but this is not likely to happen.
- */
-static inline bool should_skip_kasan_poison(struct page *page, fpi_t fpi_flags)
+static inline bool deferred_pages_enabled(void)
 {
-	return static_branch_unlikely(&deferred_pages) ||
-	       (!IS_ENABLED(CONFIG_KASAN_GENERIC) &&
-		(fpi_flags & FPI_SKIP_KASAN_POISON)) ||
-	       PageSkipKASanPoison(page);
+	return static_branch_unlikely(&deferred_pages);
 }
 
 /* Returns true if the struct page for the pfn is uninitialised */
@@ -451,11 +435,9 @@ defer_init(int nid, unsigned long pfn, unsigned long end_pfn)
 	return false;
 }
 #else
-static inline bool should_skip_kasan_poison(struct page *page, fpi_t fpi_flags)
+static inline bool deferred_pages_enabled(void)
 {
-	return (!IS_ENABLED(CONFIG_KASAN_GENERIC) &&
-		(fpi_flags & FPI_SKIP_KASAN_POISON)) ||
-	       PageSkipKASanPoison(page);
+	return false;
 }
 
 static inline bool early_page_uninitialised(unsigned long pfn)
@@ -1240,6 +1222,35 @@ out:
 	return ret;
 }
 
+/*
+ * Skip KASAN memory poisoning when either:
+ *
+ * 1. Deferred memory initialization has not yet completed,
+ *    see the explanation below.
+ * 2. Skipping poisoning is requested via FPI_SKIP_KASAN_POISON,
+ *    see the comment next to it.
+ * 3. Skipping poisoning is requested via __GFP_SKIP_KASAN_POISON,
+ *    see the comment next to it.
+ *
+ * Poisoning pages during deferred memory init will greatly lengthen the
+ * process and cause problem in large memory systems as the deferred pages
+ * initialization is done with interrupt disabled.
+ *
+ * Assuming that there will be no reference to those newly initialized
+ * pages before they are ever allocated, this should have no effect on
+ * KASAN memory tracking as the poison will be properly inserted at page
+ * allocation time. The only corner case is when pages are allocated by
+ * on-demand allocation and then freed again before the deferred pages
+ * initialization is done, but this is not likely to happen.
+ */
+static inline bool should_skip_kasan_poison(struct page *page, fpi_t fpi_flags)
+{
+	return deferred_pages_enabled() ||
+	       (!IS_ENABLED(CONFIG_KASAN_GENERIC) &&
+		(fpi_flags & FPI_SKIP_KASAN_POISON)) ||
+	       PageSkipKASanPoison(page);
+}
+
 static void kernel_init_free_pages(struct page *page, int numpages, bool zero_tags)
 {
 	int i;
-- 
GitLab


From 53436bba7fa29e21950d73bb9957133b09ed1498 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:46 +1100
Subject: [PATCH 3803/4878] FROMGIT: kasan, page_alloc: move tag_clear_highpage
 out of kernel_init_free_pages

Currently, kernel_init_free_pages() serves two purposes: it either only
zeroes memory or zeroes both memory and memory tags via a different code
path.  As this function has only two callers, each using only one code
path, this behaviour is confusing.

Pull the code that zeroes both memory and tags out of
kernel_init_free_pages().

As a result of this change, the code in free_pages_prepare() starts to
look complicated, but this is improved in the few following patches.
Those improvements are not integrated into this patch to make diffs easier
to read.

This patch does no functional changes.

Link: https://lkml.kernel.org/r/7719874e68b23902629c7cf19f966c4fd5f57979.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 9e21137d76ac5292868f31c50f843fd923e92212
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Iad847f13d396cf5dc91553ec916fe7ec660ed584
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f14a322a5c4f4..cf92f19ba2543 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1251,16 +1251,10 @@ static inline bool should_skip_kasan_poison(struct page *page, fpi_t fpi_flags)
 	       PageSkipKASanPoison(page);
 }
 
-static void kernel_init_free_pages(struct page *page, int numpages, bool zero_tags)
+static void kernel_init_free_pages(struct page *page, int numpages)
 {
 	int i;
 
-	if (zero_tags) {
-		for (i = 0; i < numpages; i++)
-			tag_clear_highpage(page + i);
-		return;
-	}
-
 	/* s390's use of memset() could override KASAN redzones. */
 	kasan_disable_current();
 	for (i = 0; i < numpages; i++) {
@@ -1354,7 +1348,7 @@ static __always_inline bool free_pages_prepare(struct page *page,
 		bool init = want_init_on_free();
 
 		if (init)
-			kernel_init_free_pages(page, 1 << order, false);
+			kernel_init_free_pages(page, 1 << order);
 		if (!skip_kasan_poison)
 			kasan_poison_pages(page, order, init);
 	}
@@ -2376,9 +2370,17 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags);
 
 		kasan_unpoison_pages(page, order, init);
-		if (init)
-			kernel_init_free_pages(page, 1 << order,
-					       gfp_flags & __GFP_ZEROTAGS);
+
+		if (init) {
+			if (gfp_flags & __GFP_ZEROTAGS) {
+				int i;
+
+				for (i = 0; i < 1 << order; i++)
+					tag_clear_highpage(page + i);
+			} else {
+				kernel_init_free_pages(page, 1 << order);
+			}
+		}
 	}
 
 	set_page_owner(page, order, gfp_flags);
-- 
GitLab


From 93ee6de568bc7cc5d5513adb65d71a9600530292 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:46 +1100
Subject: [PATCH 3804/4878] FROMGIT: kasan, page_alloc: merge kasan_free_pages
 into free_pages_prepare

Currently, the code responsible for initializing and poisoning memory in
free_pages_prepare() is scattered across two locations: kasan_free_pages()
for HW_TAGS KASAN and free_pages_prepare() itself.  This is confusing.

This and a few following patches combine the code from these two
locations.  Along the way, these patches also simplify the performed
checks to make them easier to follow.

Replaces the only caller of kasan_free_pages() with its implementation.

As kasan_has_integrated_init() is only true when CONFIG_KASAN_HW_TAGS is
enabled, moving the code does no functional changes.

This patch is not useful by itself but makes the simplifications in the
following patches easier to follow.

Link: https://lkml.kernel.org/r/303498d15840bb71905852955c6e2390ecc87139.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit c0a6431afea7568de0a427aca260388e6fe5a833
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ia88ae7b249cd81375e8f7a4f78f14d7f30e2e038
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h |  8 --------
 mm/kasan/common.c     |  2 +-
 mm/kasan/hw_tags.c    | 11 -----------
 mm/page_alloc.c       |  6 ++++--
 4 files changed, 5 insertions(+), 22 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 44524e086b358..309f6af4c6dc4 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -95,7 +95,6 @@ static inline bool kasan_hw_tags_enabled(void)
 }
 
 void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags);
-void kasan_free_pages(struct page *page, unsigned int order);
 
 #else /* CONFIG_KASAN_HW_TAGS */
 
@@ -116,13 +115,6 @@ static __always_inline void kasan_alloc_pages(struct page *page,
 	BUILD_BUG();
 }
 
-static __always_inline void kasan_free_pages(struct page *page,
-					     unsigned int order)
-{
-	/* Only available for integrated init. */
-	BUILD_BUG();
-}
-
 #endif /* CONFIG_KASAN_HW_TAGS */
 
 static inline bool kasan_has_integrated_init(void)
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index bea52c8578719..eb581cdf8a06a 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -383,7 +383,7 @@ static inline bool ____kasan_kfree_large(void *ptr, unsigned long ip)
 	}
 
 	/*
-	 * The object will be poisoned by kasan_free_pages() or
+	 * The object will be poisoned by kasan_poison_pages() or
 	 * kasan_slab_free_mempool().
 	 */
 
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 7355cb534e4f8..0b8225add2e48 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -213,17 +213,6 @@ void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags)
 	}
 }
 
-void kasan_free_pages(struct page *page, unsigned int order)
-{
-	/*
-	 * This condition should match the one in free_pages_prepare() in
-	 * page_alloc.c.
-	 */
-	bool init = want_init_on_free();
-
-	kasan_poison_pages(page, order, init);
-}
-
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
 void kasan_enable_tagging_sync(void)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index cf92f19ba2543..5f52b8a21bdb4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1335,15 +1335,17 @@ static __always_inline bool free_pages_prepare(struct page *page,
 
 	/*
 	 * As memory initialization might be integrated into KASAN,
-	 * kasan_free_pages and kernel_init_free_pages must be
+	 * KASAN poisoning and memory initialization code must be
 	 * kept together to avoid discrepancies in behavior.
 	 *
 	 * With hardware tag-based KASAN, memory tags must be set before the
 	 * page becomes unavailable via debug_pagealloc or arch_free_page.
 	 */
 	if (kasan_has_integrated_init()) {
+		bool init = want_init_on_free();
+
 		if (!skip_kasan_poison)
-			kasan_free_pages(page, order);
+			kasan_poison_pages(page, order, init);
 	} else {
 		bool init = want_init_on_free();
 
-- 
GitLab


From df97b8abcfcf78d0a06ee33763436db95ad4e9ba Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:46 +1100
Subject: [PATCH 3805/4878] FROMGIT: kasan, page_alloc: simplify
 kasan_poison_pages call site

Simplify the code around calling kasan_poison_pages() in
free_pages_prepare().

This patch does no functional changes.

Link: https://lkml.kernel.org/r/ae4f9bcf071577258e786bcec4798c145d718c46.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 542a82f0513d6a81b166cf435eb0a3cfa13f5b4b
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I19c6883418deb5dea1632429004e89094d849a0b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5f52b8a21bdb4..50458e9f66b95 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1271,6 +1271,7 @@ static __always_inline bool free_pages_prepare(struct page *page,
 {
 	int bad = 0;
 	bool skip_kasan_poison = should_skip_kasan_poison(page, fpi_flags);
+	bool init = want_init_on_free();
 
 	VM_BUG_ON_PAGE(PageTail(page), page);
 
@@ -1341,19 +1342,10 @@ static __always_inline bool free_pages_prepare(struct page *page,
 	 * With hardware tag-based KASAN, memory tags must be set before the
 	 * page becomes unavailable via debug_pagealloc or arch_free_page.
 	 */
-	if (kasan_has_integrated_init()) {
-		bool init = want_init_on_free();
-
-		if (!skip_kasan_poison)
-			kasan_poison_pages(page, order, init);
-	} else {
-		bool init = want_init_on_free();
-
-		if (init)
-			kernel_init_free_pages(page, 1 << order);
-		if (!skip_kasan_poison)
-			kasan_poison_pages(page, order, init);
-	}
+	if (init && !kasan_has_integrated_init())
+		kernel_init_free_pages(page, 1 << order);
+	if (!skip_kasan_poison)
+		kasan_poison_pages(page, order, init);
 
 	/*
 	 * arch_free_page() can make the page's contents inaccessible.  s390
-- 
GitLab


From 221cbc2a147fc1bd50242e691317cbe93e51cde5 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:46 +1100
Subject: [PATCH 3806/4878] FROMGIT: kasan, page_alloc: init memory of skipped
 pages on free

Since commit 7a3b83537188 ("kasan: use separate (un)poison implementation
for integrated init"), when all init, kasan_has_integrated_init(), and
skip_kasan_poison are true, free_pages_prepare() doesn't initialize the
page.  This is wrong.

Fix it by remembering whether kasan_poison_pages() performed
initialization, and call kernel_init_free_pages() if it didn't.

Reordering kasan_poison_pages() and kernel_init_free_pages() is OK, since
kernel_init_free_pages() can handle poisoned memory.

Link: https://lkml.kernel.org/r/1d97df75955e52727a3dc1c4e33b3b50506fc3fd.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 198c90d52d550749028048dc6a8315d4ea21237e
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I05277a0fdb393bd31c64293ef49b76a09be21364
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 50458e9f66b95..20ef56309fcf0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1342,11 +1342,16 @@ static __always_inline bool free_pages_prepare(struct page *page,
 	 * With hardware tag-based KASAN, memory tags must be set before the
 	 * page becomes unavailable via debug_pagealloc or arch_free_page.
 	 */
-	if (init && !kasan_has_integrated_init())
-		kernel_init_free_pages(page, 1 << order);
-	if (!skip_kasan_poison)
+	if (!skip_kasan_poison) {
 		kasan_poison_pages(page, order, init);
 
+		/* Memory is already initialized if KASAN did it internally. */
+		if (kasan_has_integrated_init())
+			init = false;
+	}
+	if (init)
+		kernel_init_free_pages(page, 1 << order);
+
 	/*
 	 * arch_free_page() can make the page's contents inaccessible.  s390
 	 * does this.  So nothing which can access the page's contents should
-- 
GitLab


From cb4898881ac00bb9262dcacdd0ea6f51758bb731 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:47 +1100
Subject: [PATCH 3807/4878] FROMGIT: kasan: drop skip_kasan_poison variable in
 free_pages_prepare

skip_kasan_poison is only used in a single place.  Call
should_skip_kasan_poison() directly for simplicity.

Link: https://lkml.kernel.org/r/1d33212e79bc9ef0b4d3863f903875823e89046f.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Suggested-by: Marco Elver <elver@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 630c01634a88213c9c0ff552d99e7a31cc49e0e8
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ic84f3a9629699d5d2e37759dff92c592e3658698
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 20ef56309fcf0..d7076c128b9fb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1270,7 +1270,6 @@ static __always_inline bool free_pages_prepare(struct page *page,
 			unsigned int order, bool check_free, fpi_t fpi_flags)
 {
 	int bad = 0;
-	bool skip_kasan_poison = should_skip_kasan_poison(page, fpi_flags);
 	bool init = want_init_on_free();
 
 	VM_BUG_ON_PAGE(PageTail(page), page);
@@ -1342,7 +1341,7 @@ static __always_inline bool free_pages_prepare(struct page *page,
 	 * With hardware tag-based KASAN, memory tags must be set before the
 	 * page becomes unavailable via debug_pagealloc or arch_free_page.
 	 */
-	if (!skip_kasan_poison) {
+	if (!should_skip_kasan_poison(page, fpi_flags)) {
 		kasan_poison_pages(page, order, init);
 
 		/* Memory is already initialized if KASAN did it internally. */
-- 
GitLab


From 79faa99fb2cfbe12c093879b12afeb82acd0487f Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:47 +1100
Subject: [PATCH 3808/4878] FROMGIT: mm: clarify __GFP_ZEROTAGS comment

__GFP_ZEROTAGS is intended as an optimization: if memory is zeroed during
allocation, it's possible to set memory tags at the same time with little
performance impact.

Clarify this intention of __GFP_ZEROTAGS in the comment.

Link: https://lkml.kernel.org/r/cdffde013973c5634a447513e10ec0d21e8eee29.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 7023db5ba49e559dac67152bf95f8264941928d0
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Id498ea0c72adff5bc752394161a3a69ccbeba912
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/gfp.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index fbed5dd273db5..1993d730d737b 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -229,8 +229,10 @@ struct vm_area_struct;
  *
  * %__GFP_ZERO returns a zeroed page on success.
  *
- * %__GFP_ZEROTAGS returns a page with zeroed memory tags on success, if
- * __GFP_ZERO is set.
+ * %__GFP_ZEROTAGS zeroes memory tags at allocation time if the memory itself
+ * is being zeroed (either via __GFP_ZERO or via init_on_alloc). This flag is
+ * intended for optimization: setting memory tags at the same time as zeroing
+ * memory has minimal additional performace impact.
  *
  * %__GFP_SKIP_KASAN_POISON returns a page which does not need to be poisoned
  * on deallocation. Typically used for userspace pages. Currently only has an
-- 
GitLab


From 68afff3a37c21e988c7516ae2b2d2733f2d194c3 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:47 +1100
Subject: [PATCH 3809/4878] FROMGIT: kasan: only apply __GFP_ZEROTAGS when
 memory is zeroed

__GFP_ZEROTAGS should only be effective if memory is being zeroed.
Currently, hardware tag-based KASAN violates this requirement.

Fix by including an initialization check along with checking for
__GFP_ZEROTAGS.

Link: https://lkml.kernel.org/r/f4f4593f7f675262d29d07c1938db5bd0cd5e285.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 51aac65a6ef286cb38e25283da2b18dcea2aa991
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I76ee0b24fe984ddc1352dd03c597a2fb65adfc85
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/hw_tags.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 0b8225add2e48..c643740b85996 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -199,11 +199,12 @@ void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags)
 	 * page_alloc.c.
 	 */
 	bool init = !want_init_on_free() && want_init_on_alloc(flags);
+	bool init_tags = init && (flags & __GFP_ZEROTAGS);
 
 	if (flags & __GFP_SKIP_KASAN_POISON)
 		SetPageSkipKASanPoison(page);
 
-	if (flags & __GFP_ZEROTAGS) {
+	if (init_tags) {
 		int i;
 
 		for (i = 0; i != 1 << order; ++i)
-- 
GitLab


From acd7a639f00e9a65149f2921105313e7d6e8b4e8 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:47 +1100
Subject: [PATCH 3810/4878] FROMGIT: kasan, page_alloc: refactor init checks in
 post_alloc_hook

Separate code for zeroing memory from the code clearing tags in
post_alloc_hook().

This patch is not useful by itself but makes the simplifications in the
following patches easier to follow.

This patch does no functional changes.

Link: https://lkml.kernel.org/r/2283fde963adfd8a2b29a92066f106cc16661a3c.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 1bea1e02b2a4beacf658b2b6bcdec73a5d62bcc7
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I894b39cea3168db7e47a93574560e6330d466ccc
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d7076c128b9fb..969ec5f3f992a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2366,19 +2366,21 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		kasan_alloc_pages(page, order, gfp_flags);
 	} else {
 		bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags);
+		bool init_tags = init && (gfp_flags & __GFP_ZEROTAGS);
 
 		kasan_unpoison_pages(page, order, init);
 
-		if (init) {
-			if (gfp_flags & __GFP_ZEROTAGS) {
-				int i;
+		if (init_tags) {
+			int i;
 
-				for (i = 0; i < 1 << order; i++)
-					tag_clear_highpage(page + i);
-			} else {
-				kernel_init_free_pages(page, 1 << order);
-			}
+			for (i = 0; i < 1 << order; i++)
+				tag_clear_highpage(page + i);
+
+			init = false;
 		}
+
+		if (init)
+			kernel_init_free_pages(page, 1 << order);
 	}
 
 	set_page_owner(page, order, gfp_flags);
-- 
GitLab


From f8fcca16eedad2d30d1d38697dacdbdcbff6bcc4 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:48 +1100
Subject: [PATCH 3811/4878] FROMGIT: kasan, page_alloc: merge kasan_alloc_pages
 into post_alloc_hook

Currently, the code responsible for initializing and poisoning memory in
post_alloc_hook() is scattered across two locations: kasan_alloc_pages()
hook for HW_TAGS KASAN and post_alloc_hook() itself.  This is confusing.

This and a few following patches combine the code from these two
locations.  Along the way, these patches do a step-by-step restructure the
many performed checks to make them easier to follow.

Replace the only caller of kasan_alloc_pages() with its implementation.

As kasan_has_integrated_init() is only true when CONFIG_KASAN_HW_TAGS is
enabled, moving the code does no functional changes.

Also move init and init_tags variables definitions out of
kasan_has_integrated_init() clause in post_alloc_hook(), as they have the
same values regardless of what the if condition evaluates to.

This patch is not useful by itself but makes the simplifications in the
following patches easier to follow.

Link: https://lkml.kernel.org/r/5ac7e0b30f5cbb177ec363ddd7878a3141289592.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 2a10554bf7e83f0613511f6781afe03cebab5a6c
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Iafd536232d6f9996887f9e7e47b22f6d65e6c28a
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h |  9 ---------
 mm/kasan/common.c     |  2 +-
 mm/kasan/hw_tags.c    | 22 ----------------------
 mm/page_alloc.c       | 20 +++++++++++++++-----
 4 files changed, 16 insertions(+), 37 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 309f6af4c6dc4..5ec7a17bfdb74 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -94,8 +94,6 @@ static inline bool kasan_hw_tags_enabled(void)
 	return kasan_enabled();
 }
 
-void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags);
-
 #else /* CONFIG_KASAN_HW_TAGS */
 
 static inline bool kasan_enabled(void)
@@ -108,13 +106,6 @@ static inline bool kasan_hw_tags_enabled(void)
 	return false;
 }
 
-static __always_inline void kasan_alloc_pages(struct page *page,
-					      unsigned int order, gfp_t flags)
-{
-	/* Only available for integrated init. */
-	BUILD_BUG();
-}
-
 #endif /* CONFIG_KASAN_HW_TAGS */
 
 static inline bool kasan_has_integrated_init(void)
diff --git a/mm/kasan/common.c b/mm/kasan/common.c
index eb581cdf8a06a..efb5726a14cd6 100644
--- a/mm/kasan/common.c
+++ b/mm/kasan/common.c
@@ -532,7 +532,7 @@ void * __must_check __kasan_kmalloc_large(const void *ptr, size_t size,
 		return NULL;
 
 	/*
-	 * The object has already been unpoisoned by kasan_alloc_pages() for
+	 * The object has already been unpoisoned by kasan_unpoison_pages() for
 	 * alloc_pages() or by kasan_krealloc() for krealloc().
 	 */
 
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index c643740b85996..76cf2b6229c79 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -192,28 +192,6 @@ void __init kasan_init_hw_tags(void)
 		kasan_stack_collection_enabled() ? "on" : "off");
 }
 
-void kasan_alloc_pages(struct page *page, unsigned int order, gfp_t flags)
-{
-	/*
-	 * This condition should match the one in post_alloc_hook() in
-	 * page_alloc.c.
-	 */
-	bool init = !want_init_on_free() && want_init_on_alloc(flags);
-	bool init_tags = init && (flags & __GFP_ZEROTAGS);
-
-	if (flags & __GFP_SKIP_KASAN_POISON)
-		SetPageSkipKASanPoison(page);
-
-	if (init_tags) {
-		int i;
-
-		for (i = 0; i != 1 << order; ++i)
-			tag_clear_highpage(page + i);
-	} else {
-		kasan_unpoison_pages(page, order, init);
-	}
-}
-
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
 void kasan_enable_tagging_sync(void)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 969ec5f3f992a..62931f2f85479 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2344,6 +2344,9 @@ static bool check_new_pages(struct page *page, unsigned int order)
 inline void post_alloc_hook(struct page *page, unsigned int order,
 				gfp_t gfp_flags)
 {
+	bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags);
+	bool init_tags = init && (gfp_flags & __GFP_ZEROTAGS);
+
 	set_page_private(page, 0);
 	set_page_refcounted(page);
 
@@ -2359,15 +2362,22 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 
 	/*
 	 * As memory initialization might be integrated into KASAN,
-	 * kasan_alloc_pages and kernel_init_free_pages must be
+	 * KASAN unpoisoning and memory initializion code must be
 	 * kept together to avoid discrepancies in behavior.
 	 */
 	if (kasan_has_integrated_init()) {
-		kasan_alloc_pages(page, order, gfp_flags);
-	} else {
-		bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags);
-		bool init_tags = init && (gfp_flags & __GFP_ZEROTAGS);
+		if (gfp_flags & __GFP_SKIP_KASAN_POISON)
+			SetPageSkipKASanPoison(page);
+
+		if (init_tags) {
+			int i;
 
+			for (i = 0; i != 1 << order; ++i)
+				tag_clear_highpage(page + i);
+		} else {
+			kasan_unpoison_pages(page, order, init);
+		}
+	} else {
 		kasan_unpoison_pages(page, order, init);
 
 		if (init_tags) {
-- 
GitLab


From 510dd73842971290ee7fa8cb538aa70579b3ebb8 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:48 +1100
Subject: [PATCH 3812/4878] FROMGIT: kasan, page_alloc: combine
 tag_clear_highpage calls in post_alloc_hook

Move tag_clear_highpage() loops out of the kasan_has_integrated_init()
clause as a code simplification.

This patch does no functional changes.

Link: https://lkml.kernel.org/r/587e3fc36358b88049320a89cc8dc6deaecb0cda.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit c7f82eae8866516a18dea090f28dc8b34897f4ff
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I27e6c9bc6ea0ae13f53d15888ae6b6693d4e1037
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 62931f2f85479..2bef651eee0f4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2365,30 +2365,30 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 	 * KASAN unpoisoning and memory initializion code must be
 	 * kept together to avoid discrepancies in behavior.
 	 */
+
+	/*
+	 * If memory tags should be zeroed (which happens only when memory
+	 * should be initialized as well).
+	 */
+	if (init_tags) {
+		int i;
+
+		/* Initialize both memory and tags. */
+		for (i = 0; i != 1 << order; ++i)
+			tag_clear_highpage(page + i);
+
+		/* Note that memory is already initialized by the loop above. */
+		init = false;
+	}
 	if (kasan_has_integrated_init()) {
 		if (gfp_flags & __GFP_SKIP_KASAN_POISON)
 			SetPageSkipKASanPoison(page);
 
-		if (init_tags) {
-			int i;
-
-			for (i = 0; i != 1 << order; ++i)
-				tag_clear_highpage(page + i);
-		} else {
+		if (!init_tags)
 			kasan_unpoison_pages(page, order, init);
-		}
 	} else {
 		kasan_unpoison_pages(page, order, init);
 
-		if (init_tags) {
-			int i;
-
-			for (i = 0; i < 1 << order; i++)
-				tag_clear_highpage(page + i);
-
-			init = false;
-		}
-
 		if (init)
 			kernel_init_free_pages(page, 1 << order);
 	}
-- 
GitLab


From 779c3dac342b6954ab8b8c754447d513876c4ab0 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:48 +1100
Subject: [PATCH 3813/4878] FROMGIT: kasan, page_alloc: move
 SetPageSkipKASanPoison in post_alloc_hook

Pull the SetPageSkipKASanPoison() call in post_alloc_hook() out of the big
if clause for better code readability.  This also allows for more
simplifications in the following patches.

Also turn the kasan_has_integrated_init() check into the proper
kasan_hw_tags_enabled() one.  These checks evaluate to the same value, but
logically skipping kasan poisoning has nothing to do with integrated init.

Link: https://lkml.kernel.org/r/7214c1698b754ccfaa44a792113c95cc1f807c48.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 6d7b9788ae1c95c255eb816c28b679827c9c3a2c
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I65e4d7d9f5948a029e72e1de75276ae6886d1194
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2bef651eee0f4..2346751705d0b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2381,9 +2381,6 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		init = false;
 	}
 	if (kasan_has_integrated_init()) {
-		if (gfp_flags & __GFP_SKIP_KASAN_POISON)
-			SetPageSkipKASanPoison(page);
-
 		if (!init_tags)
 			kasan_unpoison_pages(page, order, init);
 	} else {
@@ -2392,6 +2389,9 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		if (init)
 			kernel_init_free_pages(page, 1 << order);
 	}
+	/* Propagate __GFP_SKIP_KASAN_POISON to page flags. */
+	if (kasan_hw_tags_enabled() && (gfp_flags & __GFP_SKIP_KASAN_POISON))
+		SetPageSkipKASanPoison(page);
 
 	set_page_owner(page, order, gfp_flags);
 }
-- 
GitLab


From fc2bb5a8e992dd1d1e466b3012feb899898d97fc Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:49 +1100
Subject: [PATCH 3814/4878] FROMGIT: kasan, page_alloc: move
 kernel_init_free_pages in post_alloc_hook

Pull the kernel_init_free_pages() call in post_alloc_hook() out of the big
if clause for better code readability.  This also allows for more
simplifications in the following patch.

This patch does no functional changes.

Link: https://lkml.kernel.org/r/a7a76456501eb37ddf9fca6529cee9555e59cdb1.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 2d10ffc24ab7eced993e40f832cf04f29513eb1a
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Idc6a1c2d188033b98d78a6b7ec827fed14291e38
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2346751705d0b..b09df20cd3f49 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2381,14 +2381,18 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		init = false;
 	}
 	if (kasan_has_integrated_init()) {
-		if (!init_tags)
+		if (!init_tags) {
 			kasan_unpoison_pages(page, order, init);
+
+			/* Note that memory is already initialized by KASAN. */
+			init = false;
+		}
 	} else {
 		kasan_unpoison_pages(page, order, init);
-
-		if (init)
-			kernel_init_free_pages(page, 1 << order);
 	}
+	/* If memory is still not initialized, do it now. */
+	if (init)
+		kernel_init_free_pages(page, 1 << order);
 	/* Propagate __GFP_SKIP_KASAN_POISON to page flags. */
 	if (kasan_hw_tags_enabled() && (gfp_flags & __GFP_SKIP_KASAN_POISON))
 		SetPageSkipKASanPoison(page);
-- 
GitLab


From 7d28fd9a3e55a4faeafd9aed99525e197e4d1b7f Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:49 +1100
Subject: [PATCH 3815/4878] FROMGIT: kasan, page_alloc: rework
 kasan_unpoison_pages call site

Rework the checks around kasan_unpoison_pages() call in post_alloc_hook().

The logical condition for calling this function is:

- If a software KASAN mode is enabled, we need to mark shadow memory.
- Otherwise, HW_TAGS KASAN is enabled, and it only makes sense to
  set tags if they haven't already been cleared by tag_clear_highpage(),
  which is indicated by init_tags.

This patch concludes the changes for post_alloc_hook().

Link: https://lkml.kernel.org/r/0ecebd0d7ccd79150e3620ea4185a32d3dfe912f.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 671b9d0898763a961facd587543927edc263d512
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I86adda58ef53ed518277d7b4ae1383c6e0a5eb93
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/page_alloc.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b09df20cd3f49..8f372024e8b18 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2380,15 +2380,20 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		/* Note that memory is already initialized by the loop above. */
 		init = false;
 	}
-	if (kasan_has_integrated_init()) {
-		if (!init_tags) {
-			kasan_unpoison_pages(page, order, init);
+	/*
+	 * If either a software KASAN mode is enabled, or,
+	 * in the case of hardware tag-based KASAN,
+	 * if memory tags have not been cleared via tag_clear_highpage().
+	 */
+	if (IS_ENABLED(CONFIG_KASAN_GENERIC) ||
+	    IS_ENABLED(CONFIG_KASAN_SW_TAGS) ||
+	    kasan_hw_tags_enabled() && !init_tags) {
+		/* Mark shadow memory or set memory tags. */
+		kasan_unpoison_pages(page, order, init);
 
-			/* Note that memory is already initialized by KASAN. */
+		/* Note that memory is already initialized by KASAN. */
+		if (kasan_has_integrated_init())
 			init = false;
-		}
-	} else {
-		kasan_unpoison_pages(page, order, init);
 	}
 	/* If memory is still not initialized, do it now. */
 	if (init)
-- 
GitLab


From 5fd00345bfa755e88a0cf848aef6bd12c19f2cd2 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:49 +1100
Subject: [PATCH 3816/4878] FROMGIT: kasan: clean up metadata byte definitions

Most of the metadata byte values are only used for Generic KASAN.

Remove KASAN_KMALLOC_FREETRACK definition for !CONFIG_KASAN_GENERIC case,
and put it along with other metadata values for the Generic mode under a
corresponding ifdef.

Link: https://lkml.kernel.org/r/ac11d6e9e007c95e472e8fdd22efb6074ef3c6d8.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 09e576f67ae74def1a6726b2573160c59cd31535
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: If98f35da73452da99c2e97ca80d62a79af821f81
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/kasan.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 47f7b10e0b232..6b2fd4b2d1cbb 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -71,15 +71,16 @@ static inline bool kasan_sync_fault_possible(void)
 #define KASAN_PAGE_REDZONE      0xFE  /* redzone for kmalloc_large allocations */
 #define KASAN_KMALLOC_REDZONE   0xFC  /* redzone inside slub object */
 #define KASAN_KMALLOC_FREE      0xFB  /* object was freed (kmem_cache_free/kfree) */
-#define KASAN_KMALLOC_FREETRACK 0xFA  /* object was freed and has free track set */
 #else
 #define KASAN_FREE_PAGE         KASAN_TAG_INVALID
 #define KASAN_PAGE_REDZONE      KASAN_TAG_INVALID
 #define KASAN_KMALLOC_REDZONE   KASAN_TAG_INVALID
 #define KASAN_KMALLOC_FREE      KASAN_TAG_INVALID
-#define KASAN_KMALLOC_FREETRACK KASAN_TAG_INVALID
 #endif
 
+#ifdef CONFIG_KASAN_GENERIC
+
+#define KASAN_KMALLOC_FREETRACK 0xFA  /* object was freed and has free track set */
 #define KASAN_GLOBAL_REDZONE    0xF9  /* redzone for global variable */
 #define KASAN_VMALLOC_INVALID   0xF8  /* unallocated space in vmapped page */
 
@@ -110,6 +111,8 @@ static inline bool kasan_sync_fault_possible(void)
 #define KASAN_ABI_VERSION 1
 #endif
 
+#endif /* CONFIG_KASAN_GENERIC */
+
 /* Metadata layout customization. */
 #define META_BYTES_PER_BLOCK 1
 #define META_BLOCKS_PER_ROW 16
-- 
GitLab


From 8087766e62604342cc2a29c46fd1d3f58038077e Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:49 +1100
Subject: [PATCH 3817/4878] FROMGIT: kasan: define KASAN_VMALLOC_INVALID for
 SW_TAGS

In preparation for adding vmalloc support to SW_TAGS KASAN, provide a
KASAN_VMALLOC_INVALID definition for it.

HW_TAGS KASAN won't be using this value, as it falls back onto page_alloc
for poisoning freed vmalloc() memory.

Link: https://lkml.kernel.org/r/1daaaafeb148a7ae8285265edc97d7ca07b6a07d.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 7b79c26fd76d8c7ee02fd55b51e2f21c3e073147
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Id9213a2b601f8efab6e44a0105539cfe7567db45
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/kasan.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 6b2fd4b2d1cbb..62df26615045d 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -71,18 +71,19 @@ static inline bool kasan_sync_fault_possible(void)
 #define KASAN_PAGE_REDZONE      0xFE  /* redzone for kmalloc_large allocations */
 #define KASAN_KMALLOC_REDZONE   0xFC  /* redzone inside slub object */
 #define KASAN_KMALLOC_FREE      0xFB  /* object was freed (kmem_cache_free/kfree) */
+#define KASAN_VMALLOC_INVALID   0xF8  /* unallocated space in vmapped page */
 #else
 #define KASAN_FREE_PAGE         KASAN_TAG_INVALID
 #define KASAN_PAGE_REDZONE      KASAN_TAG_INVALID
 #define KASAN_KMALLOC_REDZONE   KASAN_TAG_INVALID
 #define KASAN_KMALLOC_FREE      KASAN_TAG_INVALID
+#define KASAN_VMALLOC_INVALID   KASAN_TAG_INVALID /* only for SW_TAGS */
 #endif
 
 #ifdef CONFIG_KASAN_GENERIC
 
 #define KASAN_KMALLOC_FREETRACK 0xFA  /* object was freed and has free track set */
 #define KASAN_GLOBAL_REDZONE    0xF9  /* redzone for global variable */
-#define KASAN_VMALLOC_INVALID   0xF8  /* unallocated space in vmapped page */
 
 /*
  * Stack redzone shadow values
-- 
GitLab


From a585db0de059fbc82dec60e1dcbecd08569b96cb Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:50 +1100
Subject: [PATCH 3818/4878] FROMGIT: kasan, x86, arm64, s390: rename functions
 for modules shadow

Rename kasan_free_shadow to kasan_free_module_shadow and
kasan_module_alloc to kasan_alloc_module_shadow.

These functions are used to allocate/free shadow memory for kernel modules
when KASAN_VMALLOC is not enabled.  The new names better reflect their
purpose.

Also reword the comment next to their declaration to improve clarity.

Link: https://lkml.kernel.org/r/36db32bde765d5d0b856f77d2d806e838513fe84.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit c7073f59d25ed0f9eca0a15e7a232b92d720bfbf
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I42a719cf9b65ab032987f5bcc4aabd15dad26888
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/module.c |  2 +-
 arch/s390/kernel/module.c  |  2 +-
 arch/x86/kernel/module.c   |  2 +-
 include/linux/kasan.h      | 14 +++++++-------
 mm/kasan/shadow.c          |  4 ++--
 mm/vmalloc.c               |  2 +-
 6 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 309a27553c875..d3a1fa8183487 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -58,7 +58,7 @@ void *module_alloc(unsigned long size)
 				PAGE_KERNEL, 0, NUMA_NO_NODE,
 				__builtin_return_address(0));
 
-	if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
+	if (p && (kasan_alloc_module_shadow(p, size, gfp_mask) < 0)) {
 		vfree(p);
 		return NULL;
 	}
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 03f29da8f9a54..d76037a752915 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -42,7 +42,7 @@ void *module_alloc(unsigned long size)
 	p = __vmalloc_node_range(size, MODULE_ALIGN, MODULES_VADDR, MODULES_END,
 				 gfp_mask, PAGE_KERNEL_EXEC, VM_DEFER_KMEMLEAK, NUMA_NO_NODE,
 				 __builtin_return_address(0));
-	if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
+	if (p && (kasan_alloc_module_shadow(p, size, gfp_mask) < 0)) {
 		vfree(p);
 		return NULL;
 	}
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index af6b14b52b8f6..2fe7dcec1819c 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -78,7 +78,7 @@ void *module_alloc(unsigned long size)
 				    MODULES_END, gfp_mask,
 				    PAGE_KERNEL, VM_DEFER_KMEMLEAK, NUMA_NO_NODE,
 				    __builtin_return_address(0));
-	if (p && (kasan_module_alloc(p, size, gfp_mask) < 0)) {
+	if (p && (kasan_alloc_module_shadow(p, size, gfp_mask) < 0)) {
 		vfree(p);
 		return NULL;
 	}
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 5ec7a17bfdb74..e68ca6e0dfb6c 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -447,17 +447,17 @@ static inline void kasan_release_vmalloc(unsigned long start,
 		!defined(CONFIG_KASAN_VMALLOC)
 
 /*
- * These functions provide a special case to support backing module
- * allocations with real shadow memory. With KASAN vmalloc, the special
- * case is unnecessary, as the work is handled in the generic case.
+ * These functions allocate and free shadow memory for kernel modules.
+ * They are only required when KASAN_VMALLOC is not supported, as otherwise
+ * shadow memory is allocated by the generic vmalloc handlers.
  */
-int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask);
-void kasan_free_shadow(const struct vm_struct *vm);
+int kasan_alloc_module_shadow(void *addr, size_t size, gfp_t gfp_mask);
+void kasan_free_module_shadow(const struct vm_struct *vm);
 
 #else /* (CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS) && !CONFIG_KASAN_VMALLOC */
 
-static inline int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask) { return 0; }
-static inline void kasan_free_shadow(const struct vm_struct *vm) {}
+static inline int kasan_alloc_module_shadow(void *addr, size_t size, gfp_t gfp_mask) { return 0; }
+static inline void kasan_free_module_shadow(const struct vm_struct *vm) {}
 
 #endif /* (CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS) && !CONFIG_KASAN_VMALLOC */
 
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index d94f2d8b423d6..7e93b532cc566 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -493,7 +493,7 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 
 #else /* CONFIG_KASAN_VMALLOC */
 
-int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask)
+int kasan_alloc_module_shadow(void *addr, size_t size, gfp_t gfp_mask)
 {
 	void *ret;
 	size_t scaled_size;
@@ -529,7 +529,7 @@ int kasan_module_alloc(void *addr, size_t size, gfp_t gfp_mask)
 	return -ENOMEM;
 }
 
-void kasan_free_shadow(const struct vm_struct *vm)
+void kasan_free_module_shadow(const struct vm_struct *vm)
 {
 	if (vm->flags & VM_KASAN)
 		vfree(kasan_mem_to_shadow(vm->addr));
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 9b6c978b43e62..3bffc4478d894 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2176,7 +2176,7 @@ struct vm_struct *remove_vm_area(const void *addr)
 		va->vm = NULL;
 		spin_unlock(&vmap_area_lock);
 
-		kasan_free_shadow(vm);
+		kasan_free_module_shadow(vm);
 		free_unmap_vmap_area(va);
 
 		return vm;
-- 
GitLab


From 4dfbecd756cb85526c485156d4233f4c53c722a8 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:50 +1100
Subject: [PATCH 3819/4878] BACKPORT: FROMGIT: kasan, vmalloc: drop outdated
 VM_KASAN comment

(Backport: conflicts with not backported grammar fixes.)

The comment about VM_KASAN in include/linux/vmalloc.c is outdated.
VM_KASAN is currently only used to mark vm_areas allocated for kernel
modules when CONFIG_KASAN_VMALLOC is disabled.

Drop the comment.

Link: https://lkml.kernel.org/r/780395afea83a147b3b5acc36cf2e38f7f8479f9.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 9315a646b156aa70d2453f14c56f9901c18c4142
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I894a02f14a07c0f3bac0f15564215b641f5736e0
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/vmalloc.h | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 1f221000f86a9..0297822853256 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -35,17 +35,6 @@ struct notifier_block;		/* in notifier.h */
 #define VM_DEFER_KMEMLEAK	0
 #endif
 
-/*
- * VM_KASAN is used slighly differently depending on CONFIG_KASAN_VMALLOC.
- *
- * If IS_ENABLED(CONFIG_KASAN_VMALLOC), VM_KASAN is set on a vm_struct after
- * shadow memory has been mapped. It's used to handle allocation errors so that
- * we don't try to poision shadow on free if it was never allocated.
- *
- * Otherwise, VM_KASAN is set for kasan_module_alloc() allocations and used to
- * determine which allocations need the module shadow freed.
- */
-
 /* bits [20..32] reserved for arch specific ioremap internals */
 
 /*
-- 
GitLab


From 8443112c122c1e3bc931b89b106945d6b87e0965 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:50 +1100
Subject: [PATCH 3820/4878] BACKPORT: FROMGIT: kasan: reorder vmalloc hooks

(Backport: drop kasan_populate_early_vm_area_shadow changes, as
 3252b1d8309e is not backported.)

Group functions that [de]populate shadow memory for vmalloc.  Group
functions that [un]poison memory for vmalloc.

This patch does no functional changes but prepares KASAN code for adding
vmalloc support to HW_TAGS KASAN.

Link: https://lkml.kernel.org/r/aeef49eb249c206c4c9acce2437728068da74c28.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 6f933f941311711352b2925d61cd7d2c714cb716
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ibafa7a38ebadd066b0371c1981ffd9016115fdef
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h | 17 +++++++++--------
 mm/kasan/shadow.c     | 43 ++++++++++++++++++++++---------------------
 2 files changed, 31 insertions(+), 29 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index e68ca6e0dfb6c..644528f215ee0 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -418,12 +418,13 @@ static inline void kasan_init_hw_tags(void) { }
 #ifdef CONFIG_KASAN_VMALLOC
 
 int kasan_populate_vmalloc(unsigned long addr, unsigned long size);
-void kasan_poison_vmalloc(const void *start, unsigned long size);
-void kasan_unpoison_vmalloc(const void *start, unsigned long size);
 void kasan_release_vmalloc(unsigned long start, unsigned long end,
 			   unsigned long free_region_start,
 			   unsigned long free_region_end);
 
+void kasan_unpoison_vmalloc(const void *start, unsigned long size);
+void kasan_poison_vmalloc(const void *start, unsigned long size);
+
 #else /* CONFIG_KASAN_VMALLOC */
 
 static inline int kasan_populate_vmalloc(unsigned long start,
@@ -431,15 +432,15 @@ static inline int kasan_populate_vmalloc(unsigned long start,
 {
 	return 0;
 }
-
-static inline void kasan_poison_vmalloc(const void *start, unsigned long size)
-{ }
-static inline void kasan_unpoison_vmalloc(const void *start, unsigned long size)
-{ }
 static inline void kasan_release_vmalloc(unsigned long start,
 					 unsigned long end,
 					 unsigned long free_region_start,
-					 unsigned long free_region_end) {}
+					 unsigned long free_region_end) { }
+
+static inline void kasan_unpoison_vmalloc(const void *start, unsigned long size)
+{ }
+static inline void kasan_poison_vmalloc(const void *start, unsigned long size)
+{ }
 
 #endif /* CONFIG_KASAN_VMALLOC */
 
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index 7e93b532cc566..dffce404b362d 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -340,27 +340,6 @@ int kasan_populate_vmalloc(unsigned long addr, unsigned long size)
 	return 0;
 }
 
-/*
- * Poison the shadow for a vmalloc region. Called as part of the
- * freeing process at the time the region is freed.
- */
-void kasan_poison_vmalloc(const void *start, unsigned long size)
-{
-	if (!is_vmalloc_or_module_addr(start))
-		return;
-
-	size = round_up(size, KASAN_GRANULE_SIZE);
-	kasan_poison(start, size, KASAN_VMALLOC_INVALID, false);
-}
-
-void kasan_unpoison_vmalloc(const void *start, unsigned long size)
-{
-	if (!is_vmalloc_or_module_addr(start))
-		return;
-
-	kasan_unpoison(start, size, false);
-}
-
 static int kasan_depopulate_vmalloc_pte(pte_t *ptep, unsigned long addr,
 					void *unused)
 {
@@ -491,6 +470,28 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 	}
 }
 
+
+void kasan_unpoison_vmalloc(const void *start, unsigned long size)
+{
+	if (!is_vmalloc_or_module_addr(start))
+		return;
+
+	kasan_unpoison(start, size, false);
+}
+
+/*
+ * Poison the shadow for a vmalloc region. Called as part of the
+ * freeing process at the time the region is freed.
+ */
+void kasan_poison_vmalloc(const void *start, unsigned long size)
+{
+	if (!is_vmalloc_or_module_addr(start))
+		return;
+
+	size = round_up(size, KASAN_GRANULE_SIZE);
+	kasan_poison(start, size, KASAN_VMALLOC_INVALID, false);
+}
+
 #else /* CONFIG_KASAN_VMALLOC */
 
 int kasan_alloc_module_shadow(void *addr, size_t size, gfp_t gfp_mask)
-- 
GitLab


From 83ab9cb5c33f2bf6fbaa401a07e39e3a03f5a196 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:50 +1100
Subject: [PATCH 3821/4878] FROMGIT: kasan: add wrappers for vmalloc hooks

Add wrappers around functions that [un]poison memory for vmalloc
allocations.  These functions will be used by HW_TAGS KASAN and therefore
need to be disabled when kasan=off command line argument is provided.

This patch does no functional changes for software KASAN modes.

Link: https://lkml.kernel.org/r/3b8728eac438c55389fb0f9a8a2145d71dd77487.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 229f54a9a70a62e5e1cc4c52fae578113519a547
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I78cd783997a59a255120b47de4851d16968ed77c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h | 17 +++++++++++++++--
 mm/kasan/shadow.c     |  5 ++---
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 644528f215ee0..93c133761f27f 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -422,8 +422,21 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 			   unsigned long free_region_start,
 			   unsigned long free_region_end);
 
-void kasan_unpoison_vmalloc(const void *start, unsigned long size);
-void kasan_poison_vmalloc(const void *start, unsigned long size);
+void __kasan_unpoison_vmalloc(const void *start, unsigned long size);
+static __always_inline void kasan_unpoison_vmalloc(const void *start,
+						   unsigned long size)
+{
+	if (kasan_enabled())
+		__kasan_unpoison_vmalloc(start, size);
+}
+
+void __kasan_poison_vmalloc(const void *start, unsigned long size);
+static __always_inline void kasan_poison_vmalloc(const void *start,
+						 unsigned long size)
+{
+	if (kasan_enabled())
+		__kasan_poison_vmalloc(start, size);
+}
 
 #else /* CONFIG_KASAN_VMALLOC */
 
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index dffce404b362d..aa957d6926599 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -470,8 +470,7 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 	}
 }
 
-
-void kasan_unpoison_vmalloc(const void *start, unsigned long size)
+void __kasan_unpoison_vmalloc(const void *start, unsigned long size)
 {
 	if (!is_vmalloc_or_module_addr(start))
 		return;
@@ -483,7 +482,7 @@ void kasan_unpoison_vmalloc(const void *start, unsigned long size)
  * Poison the shadow for a vmalloc region. Called as part of the
  * freeing process at the time the region is freed.
  */
-void kasan_poison_vmalloc(const void *start, unsigned long size)
+void __kasan_poison_vmalloc(const void *start, unsigned long size)
 {
 	if (!is_vmalloc_or_module_addr(start))
 		return;
-- 
GitLab


From f4aff923721e6a9db1aca1ab65460a725ce5a153 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:51 +1100
Subject: [PATCH 3822/4878] BACKPORT: FROMGIT: kasan, vmalloc: reset tags in
 vmalloc functions

(Backport: drop find_vmap_area_exceed_addr changes, as the function
 is not present in 5.10.)

In preparation for adding vmalloc support to SW/HW_TAGS KASAN, reset
pointer tags in functions that use pointer values in range checks.

vread() is a special case here.  Despite the untagging of the addr pointer
in its prologue, the accesses performed by vread() are checked.

Instead of accessing the virtual mappings though addr directly, vread()
recovers the physical address via page_address(vmalloc_to_page()) and
acceses that.  And as page_address() recovers the pointer tag, the
accesses get checked.

Link: https://lkml.kernel.org/r/046003c5f683cacb0ba18e1079e9688bb3dca943.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 2ff0ed08854b60edaff2ee5ddaf036c85eb18de7
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I580d2dfe9fa7d8f04281298b5a5ceed93015b8cf
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/vmalloc.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 3bffc4478d894..609393c3a5671 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -46,7 +46,7 @@
 
 bool is_vmalloc_addr(const void *x)
 {
-	unsigned long addr = (unsigned long)x;
+	unsigned long addr = (unsigned long)kasan_reset_tag(x);
 
 	return addr >= VMALLOC_START && addr < VMALLOC_END;
 }
@@ -337,7 +337,7 @@ int is_vmalloc_or_module_addr(const void *x)
 	 * just put it in the vmalloc space.
 	 */
 #if defined(CONFIG_MODULES) && defined(MODULES_VADDR)
-	unsigned long addr = (unsigned long)x;
+	unsigned long addr = (unsigned long)kasan_reset_tag(x);
 	if (addr >= MODULES_VADDR && addr < MODULES_END)
 		return 1;
 #endif
@@ -497,6 +497,8 @@ static struct vmap_area *__find_vmap_area(unsigned long addr)
 {
 	struct rb_node *n = vmap_area_root.rb_node;
 
+	addr = (unsigned long)kasan_reset_tag((void *)addr);
+
 	while (n) {
 		struct vmap_area *va;
 
@@ -1803,7 +1805,7 @@ EXPORT_SYMBOL_GPL(vm_unmap_aliases);
 void vm_unmap_ram(const void *mem, unsigned int count)
 {
 	unsigned long size = (unsigned long)count << PAGE_SHIFT;
-	unsigned long addr = (unsigned long)mem;
+	unsigned long addr = (unsigned long)kasan_reset_tag(mem);
 	struct vmap_area *va;
 
 	might_sleep();
@@ -2888,6 +2890,8 @@ long vread(char *buf, char *addr, unsigned long count)
 	unsigned long buflen = count;
 	unsigned long n;
 
+	addr = kasan_reset_tag(addr);
+
 	/* Don't allow overflow */
 	if ((unsigned long) addr + count < count)
 		count = -(unsigned long) addr;
-- 
GitLab


From 092c06519c20445a52127aab9852275859c604be Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:51 +1100
Subject: [PATCH 3823/4878] FROMLIST: kasan, fork: reset pointer tags of
 vmapped stacks

[Combines a FROMGIT patch and FROMLIST fix for it.]

Once tag-based KASAN modes start tagging vmalloc() allocations, kernel
stacks start getting tagged if CONFIG_VMAP_STACK is enabled.

Reset the tag of kernel stack pointers after allocation in
alloc_thread_stack_node().

For SW_TAGS KASAN, when CONFIG_KASAN_STACK is enabled, the instrumentation
can't handle the SP register being tagged.

For HW_TAGS KASAN, there's no instrumentation-related issues.  However,
the impact of having a tagged SP register needs to be properly evaluated,
so keep it non-tagged for now.

Note, that the memory for the stack allocation still gets tagged to catch
vmalloc-into-stack out-of-bounds accesses.

Link: https://lkml.kernel.org/r/c6c96f012371ecd80e1936509ebcd3b07a5956f7.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 9d2dae85d689202c56068ce62e20821ad91c3606
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Link: https://lore.kernel.org/linux-mm/f50c5f96ef896d7936192c888b0c0a7674e33184.1644943792.git.andreyknvl@google.com/
Bug: 217222520
Change-Id: Ie723b03f1b857bc841cffc9a424b2791c97044a6
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 kernel/fork.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 524bff4fa23ae..4b041c6115043 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -232,15 +232,17 @@ static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, int node)
 		if (!s)
 			continue;
 
-		/* Mark stack accessible for KASAN. */
+		/* Reset stack metadata. */
 		kasan_unpoison_range(s->addr, THREAD_SIZE);
 
+		stack = kasan_reset_tag(s->addr);
+
 		/* Clear stale pointers from reused stack. */
-		memset(s->addr, 0, THREAD_SIZE);
+		memset(stack, 0, THREAD_SIZE);
 
 		tsk->stack_vm_area = s;
-		tsk->stack = s->addr;
-		return s->addr;
+		tsk->stack = stack;
+		return stack;
 	}
 
 	/*
@@ -260,6 +262,7 @@ static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, int node)
 	 * so cache the vm_struct.
 	 */
 	if (stack) {
+		stack = kasan_reset_tag(stack);
 		tsk->stack_vm_area = find_vm_area(stack);
 		tsk->stack = stack;
 	}
-- 
GitLab


From 846edaca46ce0791e6c9b90ca1dcee88de41aa37 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:51 +1100
Subject: [PATCH 3824/4878] FROMGIT: kasan, arm64: reset pointer tags of
 vmapped stacks

Once tag-based KASAN modes start tagging vmalloc() allocations, kernel
stacks start getting tagged if CONFIG_VMAP_STACK is enabled.

Reset the tag of kernel stack pointers after allocation in
arch_alloc_vmap_stack().

For SW_TAGS KASAN, when CONFIG_KASAN_STACK is enabled, the instrumentation
can't handle the SP register being tagged.

For HW_TAGS KASAN, there's no instrumentation-related issues.  However,
the impact of having a tagged SP register needs to be properly evaluated,
so keep it non-tagged for now.

Note, that the memory for the stack allocation still gets tagged to catch
vmalloc-into-stack out-of-bounds accesses.

Link: https://lkml.kernel.org/r/698c5ab21743c796d46c15d075b9481825973e34.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 54f7bbc3786b67625b02fe067a91478fc3f39caa
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ie273a7bbde12a28b26c49d94795733f289a0c150
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/vmap_stack.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/vmap_stack.h b/arch/arm64/include/asm/vmap_stack.h
index 894e031b28d28..20873099c035c 100644
--- a/arch/arm64/include/asm/vmap_stack.h
+++ b/arch/arm64/include/asm/vmap_stack.h
@@ -17,10 +17,13 @@
  */
 static inline unsigned long *arch_alloc_vmap_stack(size_t stack_size, int node)
 {
+	void *p;
+
 	BUILD_BUG_ON(!IS_ENABLED(CONFIG_VMAP_STACK));
 
-	return __vmalloc_node(stack_size, THREAD_ALIGN, THREADINFO_GFP, node,
+	p = __vmalloc_node(stack_size, THREAD_ALIGN, THREADINFO_GFP, node,
 			__builtin_return_address(0));
+	return kasan_reset_tag(p);
 }
 
 #endif /* __ASM_VMAP_STACK_H */
-- 
GitLab


From 57d4eb31e8ca561d756d07e4a0f65ae1570c972c Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:51 +1100
Subject: [PATCH 3825/4878] FROMGIT: kasan, vmalloc: add vmalloc tagging for
 SW_TAGS

Add vmalloc tagging support to SW_TAGS KASAN.

- __kasan_unpoison_vmalloc() now assigns a random pointer tag, poisons
  the virtual mapping accordingly, and embeds the tag into the returned
  pointer.

- __get_vm_area_node() (used by vmalloc() and vmap()) and
  pcpu_get_vm_areas() save the tagged pointer into vm_struct->addr
  (note: not into vmap_area->addr). This requires putting
  kasan_unpoison_vmalloc() after setup_vmalloc_vm[_locked]();
  otherwise the latter will overwrite the tagged pointer.
  The tagged pointer then is naturally propagateed to vmalloc()
  and vmap().

- vm_map_ram() returns the tagged pointer directly.

As a result of this change, vm_struct->addr is now tagged.

Enabling KASAN_VMALLOC with SW_TAGS is not yet allowed.

Link: https://lkml.kernel.org/r/4a78f3c064ce905e9070c29733aca1dd254a74f1.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 93555972485ebcac55b3855205bf154f1ba8478f
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I1e156582d91c39a3bf3351405ffd82624072b653
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h | 16 ++++++++++------
 mm/kasan/shadow.c     |  6 ++++--
 mm/vmalloc.c          | 14 ++++++++------
 3 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 93c133761f27f..c66fec6f864b4 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -422,12 +422,13 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 			   unsigned long free_region_start,
 			   unsigned long free_region_end);
 
-void __kasan_unpoison_vmalloc(const void *start, unsigned long size);
-static __always_inline void kasan_unpoison_vmalloc(const void *start,
-						   unsigned long size)
+void *__kasan_unpoison_vmalloc(const void *start, unsigned long size);
+static __always_inline void *kasan_unpoison_vmalloc(const void *start,
+						    unsigned long size)
 {
 	if (kasan_enabled())
-		__kasan_unpoison_vmalloc(start, size);
+		return __kasan_unpoison_vmalloc(start, size);
+	return (void *)start;
 }
 
 void __kasan_poison_vmalloc(const void *start, unsigned long size);
@@ -450,8 +451,11 @@ static inline void kasan_release_vmalloc(unsigned long start,
 					 unsigned long free_region_start,
 					 unsigned long free_region_end) { }
 
-static inline void kasan_unpoison_vmalloc(const void *start, unsigned long size)
-{ }
+static inline void *kasan_unpoison_vmalloc(const void *start,
+					   unsigned long size)
+{
+	return (void *)start;
+}
 static inline void kasan_poison_vmalloc(const void *start, unsigned long size)
 { }
 
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index aa957d6926599..ce795fb1d2d59 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -470,12 +470,14 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 	}
 }
 
-void __kasan_unpoison_vmalloc(const void *start, unsigned long size)
+void *__kasan_unpoison_vmalloc(const void *start, unsigned long size)
 {
 	if (!is_vmalloc_or_module_addr(start))
-		return;
+		return (void *)start;
 
+	start = set_tag(start, kasan_random_tag());
 	kasan_unpoison(start, size, false);
+	return (void *)start;
 }
 
 /*
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 609393c3a5671..92bb01529fd1e 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1866,7 +1866,7 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node)
 		mem = (void *)addr;
 	}
 
-	kasan_unpoison_vmalloc(mem, size);
+	mem = kasan_unpoison_vmalloc(mem, size);
 
 	if (map_kernel_range(addr, size, PAGE_KERNEL, pages) < 0) {
 		vm_unmap_ram(mem, count);
@@ -2090,10 +2090,10 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 		return NULL;
 	}
 
-	kasan_unpoison_vmalloc((void *)va->va_start, requested_size);
-
 	setup_vmalloc_vm(area, va, flags, caller);
 
+	area->addr = kasan_unpoison_vmalloc(area->addr, requested_size);
+
 	return area;
 }
 
@@ -3343,9 +3343,6 @@ retry:
 	for (area = 0; area < nr_vms; area++) {
 		if (kasan_populate_vmalloc(vas[area]->va_start, sizes[area]))
 			goto err_free_shadow;
-
-		kasan_unpoison_vmalloc((void *)vas[area]->va_start,
-				       sizes[area]);
 	}
 
 	/* insert all vm's */
@@ -3358,6 +3355,11 @@ retry:
 	}
 	spin_unlock(&vmap_area_lock);
 
+	/* mark allocated areas as accessible */
+	for (area = 0; area < nr_vms; area++)
+		vms[area]->addr = kasan_unpoison_vmalloc(vms[area]->addr,
+							 vms[area]->size);
+
 	kfree(vas);
 	return vms;
 
-- 
GitLab


From a537a4c09f1a5cdb41809ea9cb15a49db4535a52 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:52 +1100
Subject: [PATCH 3826/4878] BACKPORT: FROMGIT: kasan, vmalloc, arm64: mark
 vmalloc mappings as pgprot_tagged

(Backport: conflicts due to adjacent lines changed;
 add includes to arch/arm64/include/asm/vmalloc.h.)

HW_TAGS KASAN relies on ARM Memory Tagging Extension (MTE).  With MTE, a
memory region must be mapped as MT_NORMAL_TAGGED to allow setting memory
tags via MTE-specific instructions.

Add proper protection bits to vmalloc() allocations.  These allocations
are always backed by page_alloc pages, so the tags will actually be
getting set on the corresponding physical memory.

Link: https://lkml.kernel.org/r/983fc33542db2f6b1e77b34ca23448d4640bbb9e.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit df70c9aebdba46948cf5af35a82c23a8e8376797
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I1ea6aa7cfa907a75fa1b8cab3d33538f89fe0fca
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/vmalloc.h | 9 +++++++++
 include/linux/vmalloc.h          | 7 +++++++
 mm/vmalloc.c                     | 9 +++++++++
 3 files changed, 25 insertions(+)

diff --git a/arch/arm64/include/asm/vmalloc.h b/arch/arm64/include/asm/vmalloc.h
index 2ca708ab9b20b..ac64f379e0ef1 100644
--- a/arch/arm64/include/asm/vmalloc.h
+++ b/arch/arm64/include/asm/vmalloc.h
@@ -1,4 +1,13 @@
 #ifndef _ASM_ARM64_VMALLOC_H
 #define _ASM_ARM64_VMALLOC_H
 
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+#define arch_vmap_pgprot_tagged arch_vmap_pgprot_tagged
+static inline pgprot_t arch_vmap_pgprot_tagged(pgprot_t prot)
+{
+	return pgprot_tagged(prot);
+}
+
 #endif /* _ASM_ARM64_VMALLOC_H */
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 0297822853256..d074a14e753c3 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -78,6 +78,13 @@ struct vmap_area {
 	};
 };
 
+#ifndef arch_vmap_pgprot_tagged
+static inline pgprot_t arch_vmap_pgprot_tagged(pgprot_t prot)
+{
+	return prot;
+}
+#endif
+
 /*
  *	Highlevel APIs for driver use
  */
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 92bb01529fd1e..93decebf96b1e 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2572,6 +2572,15 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!area)
 		goto fail;
 
+	/*
+	 * Modify protection bits to allow tagging.
+	 * This must be done before mapping by __vmalloc_area_node().
+	 */
+	if (kasan_hw_tags_enabled() &&
+	    pgprot_val(prot) == pgprot_val(PAGE_KERNEL))
+		prot = arch_vmap_pgprot_tagged(prot);
+
+	/* Allocate physical pages and map them into vmalloc space. */
 	addr = __vmalloc_area_node(area, gfp_mask, prot, node);
 	if (!addr)
 		return NULL;
-- 
GitLab


From e757e3ac2c90ac0a48520969e732e0109c9f6ea2 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:52 +1100
Subject: [PATCH 3827/4878] BACKPORT: FROMGIT: kasan, vmalloc: unpoison
 VM_ALLOC pages after mapping

(Backport: adjacent lines changed.)

Make KASAN unpoison vmalloc mappings after they have been mapped in when
it's possible: for vmalloc() (indentified via VM_ALLOC) and vm_map_ram().

The reasons for this are:

- For vmalloc() and vm_map_ram(): pages don't get unpoisoned in case
  mapping them fails.
- For vmalloc(): HW_TAGS KASAN needs pages to be mapped to set tags via
  kasan_unpoison_vmalloc().

As a part of these changes, the return value of __vmalloc_node_range() is
changed to area->addr.  This is a non-functional change, as
__vmalloc_area_node() returns area->addr anyway.

Link: https://lkml.kernel.org/r/fcb98980e6fcd3c4be6acdcb5d6110898ef28548.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit c86dc782f534bf1cf696d63e23993f0d1b0f04f7
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ib64e9792d266d20350fc9f803376dbe06985c6b0
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/vmalloc.c | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 93decebf96b1e..4e7dd6ed48474 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1866,12 +1866,14 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node)
 		mem = (void *)addr;
 	}
 
-	mem = kasan_unpoison_vmalloc(mem, size);
-
 	if (map_kernel_range(addr, size, PAGE_KERNEL, pages) < 0) {
 		vm_unmap_ram(mem, count);
 		return NULL;
 	}
+
+	/* Mark the pages as accessible, now that they are mapped. */
+	mem = kasan_unpoison_vmalloc(mem, size);
+
 	return mem;
 }
 EXPORT_SYMBOL(vm_map_ram);
@@ -2092,7 +2094,14 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 
 	setup_vmalloc_vm(area, va, flags, caller);
 
-	area->addr = kasan_unpoison_vmalloc(area->addr, requested_size);
+	/*
+	 * Mark pages for non-VM_ALLOC mappings as accessible. Do it now as a
+	 * best-effort approach, as they can be mapped outside of vmalloc code.
+	 * For VM_ALLOC mappings, the pages are marked as accessible after
+	 * getting mapped in __vmalloc_node_range().
+	 */
+	if (!(flags & VM_ALLOC))
+		area->addr = kasan_unpoison_vmalloc(area->addr, requested_size);
 
 	return area;
 }
@@ -2559,7 +2568,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 			const void *caller)
 {
 	struct vm_struct *area;
-	void *addr;
+	void *ret;
 	unsigned long real_size = size;
 	unsigned int shift = PAGE_SHIFT;
 
@@ -2581,10 +2590,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 		prot = arch_vmap_pgprot_tagged(prot);
 
 	/* Allocate physical pages and map them into vmalloc space. */
-	addr = __vmalloc_area_node(area, gfp_mask, prot, node);
-	if (!addr)
+	ret = __vmalloc_area_node(area, gfp_mask, prot, node);
+	if (!ret)
 		return NULL;
 
+	/* Mark the pages as accessible, now that they are mapped. */
+	area->addr = kasan_unpoison_vmalloc(area->addr, real_size);
+
 	/*
 	 * In this function, newly allocated vm_struct has VM_UNINITIALIZED
 	 * flag. It means that vm_struct is not fully initialized.
@@ -2596,7 +2608,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!(vm_flags & VM_DEFER_KMEMLEAK))
 		kmemleak_vmalloc(area, size, gfp_mask);
 
-	return addr;
+	return area->addr;
 
 fail:
 	warn_alloc(gfp_mask, NULL,
@@ -3364,7 +3376,10 @@ retry:
 	}
 	spin_unlock(&vmap_area_lock);
 
-	/* mark allocated areas as accessible */
+	/*
+	 * Mark allocated areas as accessible. Do it now as a best-effort
+	 * approach, as they can be mapped outside of vmalloc code.
+	 */
 	for (area = 0; area < nr_vms; area++)
 		vms[area]->addr = kasan_unpoison_vmalloc(vms[area]->addr,
 							 vms[area]->size);
-- 
GitLab


From 682a821bd7e5122057bfa3ecb9915dc840217da3 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:52 +1100
Subject: [PATCH 3828/4878] BACKPORT: FROMGIT: kasan, mm: only define
 ___GFP_SKIP_KASAN_POISON with HW_TAGS

(Backport: adapt the patch to account for __GFP_BITS_SHIFT changes.)

Only define the ___GFP_SKIP_KASAN_POISON flag when CONFIG_KASAN_HW_TAGS is
enabled.

This patch it not useful by itself, but it prepares the code for additions
of new KASAN-specific GFP patches.

Link: https://lkml.kernel.org/r/44e5738a584c11801b2b8f1231898918efc8634a.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit b3963a3ecc9b53c788f7f5d542110d0fd350967d
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Id971e37a04f138469b4a24cd5a87aeef4ab583c4
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/gfp.h            | 12 ++++++++++--
 include/trace/events/mmflags.h | 12 +++++++++---
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 1993d730d737b..a05c9ffb53a64 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -40,7 +40,11 @@ struct vm_area_struct;
 #define ___GFP_THISNODE		0x200000u
 #define ___GFP_ACCOUNT		0x400000u
 #define ___GFP_ZEROTAGS		0x800000u
+#ifdef CONFIG_KASAN_HW_TAGS
 #define ___GFP_SKIP_KASAN_POISON	0x1000000u
+#else
+#define ___GFP_SKIP_KASAN_POISON	0
+#endif
 #ifdef CONFIG_CMA
 #define ___GFP_CMA		0x2000000u
 #else
@@ -249,9 +253,13 @@ struct vm_area_struct;
 
 /* Room for N __GFP_FOO bits */
 #ifdef CONFIG_CMA
-#define __GFP_BITS_SHIFT (26 + IS_ENABLED(CONFIG_LOCKDEP))
+#define __GFP_BITS_SHIFT (25 +					\
+			  IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
+			  IS_ENABLED(CONFIG_LOCKDEP))
 #else
-#define __GFP_BITS_SHIFT (25 + IS_ENABLED(CONFIG_LOCKDEP))
+#define __GFP_BITS_SHIFT (24 +					\
+			  IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
+			  IS_ENABLED(CONFIG_LOCKDEP))
 #endif
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
 
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index f160484afc5ce..151b955ee52c5 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -49,12 +49,18 @@
 	{(unsigned long)__GFP_RECLAIM,		"__GFP_RECLAIM"},	\
 	{(unsigned long)__GFP_DIRECT_RECLAIM,	"__GFP_DIRECT_RECLAIM"},\
 	{(unsigned long)__GFP_KSWAPD_RECLAIM,	"__GFP_KSWAPD_RECLAIM"},\
-	{(unsigned long)__GFP_ZEROTAGS,		"__GFP_ZEROTAGS"},	\
-	{(unsigned long)__GFP_SKIP_KASAN_POISON,"__GFP_SKIP_KASAN_POISON"}\
+	{(unsigned long)__GFP_ZEROTAGS,		"__GFP_ZEROTAGS"}	\
+
+#ifdef CONFIG_KASAN_HW_TAGS
+#define __def_gfpflag_names_kasan					      \
+	, {(unsigned long)__GFP_SKIP_KASAN_POISON, "__GFP_SKIP_KASAN_POISON"}
+#else
+#define __def_gfpflag_names_kasan
+#endif
 
 #define show_gfp_flags(flags)						\
 	(flags) ? __print_flags(flags, "|",				\
-	__def_gfpflag_names						\
+	__def_gfpflag_names __def_gfpflag_names_kasan			\
 	) : "none"
 
 #ifdef CONFIG_MMU
-- 
GitLab


From 352906d8e9b1ffa96f4bc73e141623924f5e49ed Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:52 +1100
Subject: [PATCH 3829/4878] BACKPORT: FROMGIT: kasan, page_alloc: allow
 skipping unpoisoning for HW_TAGS

(Backport: adapt the patch to account for added GFP flags and
 __GFP_BITS_SHIFT definition changes;
 don't try to pack all flags to avoid macro mess.)

Add a new GFP flag __GFP_SKIP_KASAN_UNPOISON that allows skipping KASAN
poisoning for page_alloc allocations.  The flag is only effective with
HW_TAGS KASAN.

This flag will be used by vmalloc code for page_alloc allocations backing
vmalloc() mappings in a following patch.  The reason to skip KASAN
poisoning for these pages in page_alloc is because vmalloc code will be
poisoning them instead.

Also reword the comment for __GFP_SKIP_KASAN_POISON.

Link: https://lkml.kernel.org/r/35c97d77a704f6ff971dd3bfe4be95855744108e.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 9a47b06547a9c28d2899b27888bc006422d29554
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I9c52fa6370c6fd19d23edaed1a082cae946e2ef5
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/gfp.h            | 29 +++++++++++++++++------------
 include/trace/events/mmflags.h |  5 +++--
 mm/page_alloc.c                | 31 ++++++++++++++++++++++---------
 3 files changed, 42 insertions(+), 23 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index a05c9ffb53a64..c6b960d1aefdf 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -41,20 +41,22 @@ struct vm_area_struct;
 #define ___GFP_ACCOUNT		0x400000u
 #define ___GFP_ZEROTAGS		0x800000u
 #ifdef CONFIG_KASAN_HW_TAGS
-#define ___GFP_SKIP_KASAN_POISON	0x1000000u
+#define ___GFP_SKIP_KASAN_UNPOISON	0x1000000u
+#define ___GFP_SKIP_KASAN_POISON	0x2000000u
 #else
+#define ___GFP_SKIP_KASAN_UNPOISON	0
 #define ___GFP_SKIP_KASAN_POISON	0
 #endif
 #ifdef CONFIG_CMA
-#define ___GFP_CMA		0x2000000u
+#define ___GFP_CMA		0x4000000u
 #else
 #define ___GFP_CMA		0
 #endif
 #ifdef CONFIG_LOCKDEP
 #ifdef CONFIG_CMA
-#define ___GFP_NOLOCKDEP	0x4000000u
+#define ___GFP_NOLOCKDEP	0x8000000u
 #else
-#define ___GFP_NOLOCKDEP	0x2000000u
+#define ___GFP_NOLOCKDEP	0x4000000u
 #endif
 #else
 #define ___GFP_NOLOCKDEP	0
@@ -238,27 +240,30 @@ struct vm_area_struct;
  * intended for optimization: setting memory tags at the same time as zeroing
  * memory has minimal additional performace impact.
  *
- * %__GFP_SKIP_KASAN_POISON returns a page which does not need to be poisoned
- * on deallocation. Typically used for userspace pages. Currently only has an
- * effect in HW tags mode.
+ * %__GFP_SKIP_KASAN_UNPOISON makes KASAN skip unpoisoning on page allocation.
+ * Only effective in HW_TAGS mode.
+ *
+ * %__GFP_SKIP_KASAN_POISON makes KASAN skip poisoning on page deallocation.
+ * Typically, used for userspace pages. Only effective in HW_TAGS mode.
  */
 #define __GFP_NOWARN	((__force gfp_t)___GFP_NOWARN)
 #define __GFP_COMP	((__force gfp_t)___GFP_COMP)
 #define __GFP_ZERO	((__force gfp_t)___GFP_ZERO)
 #define __GFP_ZEROTAGS	((__force gfp_t)___GFP_ZEROTAGS)
-#define __GFP_SKIP_KASAN_POISON	((__force gfp_t)___GFP_SKIP_KASAN_POISON)
+#define __GFP_SKIP_KASAN_UNPOISON ((__force gfp_t)___GFP_SKIP_KASAN_UNPOISON)
+#define __GFP_SKIP_KASAN_POISON   ((__force gfp_t)___GFP_SKIP_KASAN_POISON)
 
 /* Disable lockdep for GFP context tracking */
 #define __GFP_NOLOCKDEP ((__force gfp_t)___GFP_NOLOCKDEP)
 
 /* Room for N __GFP_FOO bits */
 #ifdef CONFIG_CMA
-#define __GFP_BITS_SHIFT (25 +					\
-			  IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
+#define __GFP_BITS_SHIFT (25 +						\
+			  2 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
 			  IS_ENABLED(CONFIG_LOCKDEP))
 #else
-#define __GFP_BITS_SHIFT (24 +					\
-			  IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
+#define __GFP_BITS_SHIFT (24 +						\
+			  2 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
 			  IS_ENABLED(CONFIG_LOCKDEP))
 #endif
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 151b955ee52c5..42a29188c51b4 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -52,8 +52,9 @@
 	{(unsigned long)__GFP_ZEROTAGS,		"__GFP_ZEROTAGS"}	\
 
 #ifdef CONFIG_KASAN_HW_TAGS
-#define __def_gfpflag_names_kasan					      \
-	, {(unsigned long)__GFP_SKIP_KASAN_POISON, "__GFP_SKIP_KASAN_POISON"}
+#define __def_gfpflag_names_kasan ,					       \
+	{(unsigned long)__GFP_SKIP_KASAN_POISON,   "__GFP_SKIP_KASAN_POISON"}, \
+	{(unsigned long)__GFP_SKIP_KASAN_UNPOISON, "__GFP_SKIP_KASAN_UNPOISON"}
 #else
 #define __def_gfpflag_names_kasan
 #endif
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8f372024e8b18..f71b0078fb5fb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2341,6 +2341,26 @@ static bool check_new_pages(struct page *page, unsigned int order)
 	return false;
 }
 
+static inline bool should_skip_kasan_unpoison(gfp_t flags, bool init_tags)
+{
+	/* Don't skip if a software KASAN mode is enabled. */
+	if (IS_ENABLED(CONFIG_KASAN_GENERIC) ||
+	    IS_ENABLED(CONFIG_KASAN_SW_TAGS))
+		return false;
+
+	/* Skip, if hardware tag-based KASAN is not enabled. */
+	if (!kasan_hw_tags_enabled())
+		return true;
+
+	/*
+	 * With hardware tag-based KASAN enabled, skip if either:
+	 *
+	 * 1. Memory tags have already been cleared via tag_clear_highpage().
+	 * 2. Skipping has been requested via __GFP_SKIP_KASAN_UNPOISON.
+	 */
+	return init_tags || (flags & __GFP_SKIP_KASAN_UNPOISON);
+}
+
 inline void post_alloc_hook(struct page *page, unsigned int order,
 				gfp_t gfp_flags)
 {
@@ -2380,15 +2400,8 @@ inline void post_alloc_hook(struct page *page, unsigned int order,
 		/* Note that memory is already initialized by the loop above. */
 		init = false;
 	}
-	/*
-	 * If either a software KASAN mode is enabled, or,
-	 * in the case of hardware tag-based KASAN,
-	 * if memory tags have not been cleared via tag_clear_highpage().
-	 */
-	if (IS_ENABLED(CONFIG_KASAN_GENERIC) ||
-	    IS_ENABLED(CONFIG_KASAN_SW_TAGS) ||
-	    kasan_hw_tags_enabled() && !init_tags) {
-		/* Mark shadow memory or set memory tags. */
+	if (!should_skip_kasan_unpoison(gfp_flags, init_tags)) {
+		/* Unpoison shadow memory or set memory tags. */
 		kasan_unpoison_pages(page, order, init);
 
 		/* Note that memory is already initialized by KASAN. */
-- 
GitLab


From 20cd51626a276fc70d261da3368465f784c1229c Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:53 +1100
Subject: [PATCH 3830/4878] BACKPORT: FROMGIT: kasan, page_alloc: allow
 skipping memory init for HW_TAGS

(Backport: adapt the patch to account for added GFP flags and
 __GFP_BITS_SHIFT definition changes;
 don't try to pack all flags to avoid macro mess.)

Add a new GFP flag __GFP_SKIP_ZERO that allows to skip memory
initialization.  The flag is only effective with HW_TAGS KASAN.

This flag will be used by vmalloc code for page_alloc allocations backing
vmalloc() mappings in a following patch.  The reason to skip memory
initialization for these pages in page_alloc is because vmalloc code will
be initializing them instead.

With the current implementation, when __GFP_SKIP_ZERO is provided,
__GFP_ZEROTAGS is ignored.  This doesn't matter, as these two flags are
never provided at the same time.  However, if this is changed in the
future, this particular implementation detail can be changed as well.

Link: https://lkml.kernel.org/r/0d53efeff345de7d708e0baa0d8829167772521e.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit db88e21f5cce8c45f7973a272c3bd60440f0e1b2
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I617be9a6e1480a204edea41a3627fb6a41733753
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/gfp.h            | 24 ++++++++++++++----------
 include/trace/events/mmflags.h |  1 +
 mm/page_alloc.c                | 13 ++++++++++++-
 3 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index c6b960d1aefdf..def31f0f5a077 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -41,22 +41,24 @@ struct vm_area_struct;
 #define ___GFP_ACCOUNT		0x400000u
 #define ___GFP_ZEROTAGS		0x800000u
 #ifdef CONFIG_KASAN_HW_TAGS
-#define ___GFP_SKIP_KASAN_UNPOISON	0x1000000u
-#define ___GFP_SKIP_KASAN_POISON	0x2000000u
+#define ___GFP_SKIP_ZERO		0x1000000u
+#define ___GFP_SKIP_KASAN_UNPOISON	0x2000000u
+#define ___GFP_SKIP_KASAN_POISON	0x4000000u
 #else
+#define ___GFP_SKIP_ZERO		0
 #define ___GFP_SKIP_KASAN_UNPOISON	0
 #define ___GFP_SKIP_KASAN_POISON	0
 #endif
 #ifdef CONFIG_CMA
-#define ___GFP_CMA		0x4000000u
+#define ___GFP_CMA		0x8000000u
 #else
 #define ___GFP_CMA		0
 #endif
 #ifdef CONFIG_LOCKDEP
 #ifdef CONFIG_CMA
-#define ___GFP_NOLOCKDEP	0x8000000u
+#define ___GFP_NOLOCKDEP	0x10000000u
 #else
-#define ___GFP_NOLOCKDEP	0x4000000u
+#define ___GFP_NOLOCKDEP	0x8000000u
 #endif
 #else
 #define ___GFP_NOLOCKDEP	0
@@ -236,9 +238,10 @@ struct vm_area_struct;
  * %__GFP_ZERO returns a zeroed page on success.
  *
  * %__GFP_ZEROTAGS zeroes memory tags at allocation time if the memory itself
- * is being zeroed (either via __GFP_ZERO or via init_on_alloc). This flag is
- * intended for optimization: setting memory tags at the same time as zeroing
- * memory has minimal additional performace impact.
+ * is being zeroed (either via __GFP_ZERO or via init_on_alloc, provided that
+ * __GFP_SKIP_ZERO is not set). This flag is intended for optimization: setting
+ * memory tags at the same time as zeroing memory has minimal additional
+ * performace impact.
  *
  * %__GFP_SKIP_KASAN_UNPOISON makes KASAN skip unpoisoning on page allocation.
  * Only effective in HW_TAGS mode.
@@ -250,6 +253,7 @@ struct vm_area_struct;
 #define __GFP_COMP	((__force gfp_t)___GFP_COMP)
 #define __GFP_ZERO	((__force gfp_t)___GFP_ZERO)
 #define __GFP_ZEROTAGS	((__force gfp_t)___GFP_ZEROTAGS)
+#define __GFP_SKIP_ZERO ((__force gfp_t)___GFP_SKIP_ZERO)
 #define __GFP_SKIP_KASAN_UNPOISON ((__force gfp_t)___GFP_SKIP_KASAN_UNPOISON)
 #define __GFP_SKIP_KASAN_POISON   ((__force gfp_t)___GFP_SKIP_KASAN_POISON)
 
@@ -259,11 +263,11 @@ struct vm_area_struct;
 /* Room for N __GFP_FOO bits */
 #ifdef CONFIG_CMA
 #define __GFP_BITS_SHIFT (25 +						\
-			  2 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
+			  3 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
 			  IS_ENABLED(CONFIG_LOCKDEP))
 #else
 #define __GFP_BITS_SHIFT (24 +						\
-			  2 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
+			  3 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
 			  IS_ENABLED(CONFIG_LOCKDEP))
 #endif
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 42a29188c51b4..d26bfc4951291 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -53,6 +53,7 @@
 
 #ifdef CONFIG_KASAN_HW_TAGS
 #define __def_gfpflag_names_kasan ,					       \
+	{(unsigned long)__GFP_SKIP_ZERO,	   "__GFP_SKIP_ZERO"},	       \
 	{(unsigned long)__GFP_SKIP_KASAN_POISON,   "__GFP_SKIP_KASAN_POISON"}, \
 	{(unsigned long)__GFP_SKIP_KASAN_UNPOISON, "__GFP_SKIP_KASAN_UNPOISON"}
 #else
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f71b0078fb5fb..8fa9361450741 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2361,10 +2361,21 @@ static inline bool should_skip_kasan_unpoison(gfp_t flags, bool init_tags)
 	return init_tags || (flags & __GFP_SKIP_KASAN_UNPOISON);
 }
 
+static inline bool should_skip_init(gfp_t flags)
+{
+	/* Don't skip, if hardware tag-based KASAN is not enabled. */
+	if (!kasan_hw_tags_enabled())
+		return false;
+
+	/* For hardware tag-based KASAN, skip if requested. */
+	return (flags & __GFP_SKIP_ZERO);
+}
+
 inline void post_alloc_hook(struct page *page, unsigned int order,
 				gfp_t gfp_flags)
 {
-	bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags);
+	bool init = !want_init_on_free() && want_init_on_alloc(gfp_flags) &&
+			!should_skip_init(gfp_flags);
 	bool init_tags = init && (gfp_flags & __GFP_ZEROTAGS);
 
 	set_page_private(page, 0);
-- 
GitLab


From 01047c8c75584613da97ac4bf5cfd713ce77bfee Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:53 +1100
Subject: [PATCH 3831/4878] BACKPORT: FROMGIT: kasan, vmalloc: add vmalloc
 tagging for HW_TAGS

(Backport: drop find_vmap_area_exceed_addr changes, as the function
 is not present in 5.10.)

Add vmalloc tagging support to HW_TAGS KASAN.

The key difference between HW_TAGS and the other two KASAN modes when it
comes to vmalloc: HW_TAGS KASAN can only assign tags to physical memory.
The other two modes have shadow memory covering every mapped virtual
memory region.

Make __kasan_unpoison_vmalloc() for HW_TAGS KASAN:

- Skip non-VM_ALLOC mappings as HW_TAGS KASAN can only tag a single
  mapping of normal physical memory; see the comment in the function.
- Generate a random tag, tag the returned pointer and the allocation,
  and initialize the allocation at the same time.
- Propagate the tag into the page stucts to allow accesses through
  page_address(vmalloc_to_page()).

The rest of vmalloc-related KASAN hooks are not needed:

- The shadow-related ones are fully skipped.
- __kasan_poison_vmalloc() is kept as a no-op with a comment.

Poisoning and zeroing of physical pages that are backing vmalloc()
allocations are skipped via __GFP_SKIP_KASAN_UNPOISON and __GFP_SKIP_ZERO:
__kasan_unpoison_vmalloc() does that instead.

Enabling CONFIG_KASAN_VMALLOC with HW_TAGS is not yet allowed.

Link: https://lkml.kernel.org/r/d19b2e9e59a9abc59d05b72dea8429dcaea739c6.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit c9a950bcf1d67298187050bc3179096e4ef248c1
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I446b0ae074938389ade70bf503784d4d32b5d09b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h | 33 ++++++++++++++--
 kernel/scs.c          |  4 +-
 mm/kasan/hw_tags.c    | 92 +++++++++++++++++++++++++++++++++++++++++++
 mm/kasan/shadow.c     | 10 ++++-
 mm/vmalloc.c          | 51 ++++++++++++++++++------
 5 files changed, 172 insertions(+), 18 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index c66fec6f864b4..503cf10e8d57d 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -24,6 +24,12 @@ struct kunit_kasan_expectation {
 
 #endif
 
+typedef unsigned int __bitwise kasan_vmalloc_flags_t;
+
+#define KASAN_VMALLOC_NONE	0x00u
+#define KASAN_VMALLOC_INIT	0x01u
+#define KASAN_VMALLOC_VM_ALLOC	0x02u
+
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
 
 #include <linux/pgtable.h>
@@ -417,17 +423,35 @@ static inline void kasan_init_hw_tags(void) { }
 
 #ifdef CONFIG_KASAN_VMALLOC
 
+#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
+
 int kasan_populate_vmalloc(unsigned long addr, unsigned long size);
 void kasan_release_vmalloc(unsigned long start, unsigned long end,
 			   unsigned long free_region_start,
 			   unsigned long free_region_end);
 
-void *__kasan_unpoison_vmalloc(const void *start, unsigned long size);
+#else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */
+
+static inline int kasan_populate_vmalloc(unsigned long start,
+					unsigned long size)
+{
+	return 0;
+}
+static inline void kasan_release_vmalloc(unsigned long start,
+					 unsigned long end,
+					 unsigned long free_region_start,
+					 unsigned long free_region_end) { }
+
+#endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */
+
+void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
+			       kasan_vmalloc_flags_t flags);
 static __always_inline void *kasan_unpoison_vmalloc(const void *start,
-						    unsigned long size)
+						unsigned long size,
+						kasan_vmalloc_flags_t flags)
 {
 	if (kasan_enabled())
-		return __kasan_unpoison_vmalloc(start, size);
+		return __kasan_unpoison_vmalloc(start, size, flags);
 	return (void *)start;
 }
 
@@ -452,7 +476,8 @@ static inline void kasan_release_vmalloc(unsigned long start,
 					 unsigned long free_region_end) { }
 
 static inline void *kasan_unpoison_vmalloc(const void *start,
-					   unsigned long size)
+					   unsigned long size,
+					   kasan_vmalloc_flags_t flags)
 {
 	return (void *)start;
 }
diff --git a/kernel/scs.c b/kernel/scs.c
index 579841be88646..b83bc9251f996 100644
--- a/kernel/scs.c
+++ b/kernel/scs.c
@@ -32,7 +32,7 @@ static void *__scs_alloc(int node)
 	for (i = 0; i < NR_CACHED_SCS; i++) {
 		s = this_cpu_xchg(scs_cache[i], NULL);
 		if (s) {
-			kasan_unpoison_vmalloc(s, SCS_SIZE);
+			kasan_unpoison_vmalloc(s, SCS_SIZE, KASAN_VMALLOC_NONE);
 			memset(s, 0, SCS_SIZE);
 			return s;
 		}
@@ -78,7 +78,7 @@ void scs_free(void *s)
 		if (this_cpu_cmpxchg(scs_cache[i], 0, s) == NULL)
 			return;
 
-	kasan_unpoison_vmalloc(s, SCS_SIZE);
+	kasan_unpoison_vmalloc(s, SCS_SIZE, KASAN_VMALLOC_NONE);
 	vfree_atomic(s);
 }
 
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 76cf2b6229c79..21104fd518727 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -192,6 +192,98 @@ void __init kasan_init_hw_tags(void)
 		kasan_stack_collection_enabled() ? "on" : "off");
 }
 
+#ifdef CONFIG_KASAN_VMALLOC
+
+static void unpoison_vmalloc_pages(const void *addr, u8 tag)
+{
+	struct vm_struct *area;
+	int i;
+
+	/*
+	 * As hardware tag-based KASAN only tags VM_ALLOC vmalloc allocations
+	 * (see the comment in __kasan_unpoison_vmalloc), all of the pages
+	 * should belong to a single area.
+	 */
+	area = find_vm_area((void *)addr);
+	if (WARN_ON(!area))
+		return;
+
+	for (i = 0; i < area->nr_pages; i++) {
+		struct page *page = area->pages[i];
+
+		page_kasan_tag_set(page, tag);
+	}
+}
+
+void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
+				kasan_vmalloc_flags_t flags)
+{
+	u8 tag;
+	unsigned long redzone_start, redzone_size;
+
+	if (!is_vmalloc_or_module_addr(start))
+		return (void *)start;
+
+	/*
+	 * Skip unpoisoning and assigning a pointer tag for non-VM_ALLOC
+	 * mappings as:
+	 *
+	 * 1. Unlike the software KASAN modes, hardware tag-based KASAN only
+	 *    supports tagging physical memory. Therefore, it can only tag a
+	 *    single mapping of normal physical pages.
+	 * 2. Hardware tag-based KASAN can only tag memory mapped with special
+	 *    mapping protection bits, see arch_vmalloc_pgprot_modify().
+	 *    As non-VM_ALLOC mappings can be mapped outside of vmalloc code,
+	 *    providing these bits would require tracking all non-VM_ALLOC
+	 *    mappers.
+	 *
+	 * Thus, for VM_ALLOC mappings, hardware tag-based KASAN only tags
+	 * the first virtual mapping, which is created by vmalloc().
+	 * Tagging the page_alloc memory backing that vmalloc() allocation is
+	 * skipped, see ___GFP_SKIP_KASAN_UNPOISON.
+	 *
+	 * For non-VM_ALLOC allocations, page_alloc memory is tagged as usual.
+	 */
+	if (!(flags & KASAN_VMALLOC_VM_ALLOC))
+		return (void *)start;
+
+	tag = kasan_random_tag();
+	start = set_tag(start, tag);
+
+	/* Unpoison and initialize memory up to size. */
+	kasan_unpoison(start, size, flags & KASAN_VMALLOC_INIT);
+
+	/*
+	 * Explicitly poison and initialize the in-page vmalloc() redzone.
+	 * Unlike software KASAN modes, hardware tag-based KASAN doesn't
+	 * unpoison memory when populating shadow for vmalloc() space.
+	 */
+	redzone_start = round_up((unsigned long)start + size,
+				 KASAN_GRANULE_SIZE);
+	redzone_size = round_up(redzone_start, PAGE_SIZE) - redzone_start;
+	kasan_poison((void *)redzone_start, redzone_size, KASAN_TAG_INVALID,
+		     flags & KASAN_VMALLOC_INIT);
+
+	/*
+	 * Set per-page tag flags to allow accessing physical memory for the
+	 * vmalloc() mapping through page_address(vmalloc_to_page()).
+	 */
+	unpoison_vmalloc_pages(start, tag);
+
+	return (void *)start;
+}
+
+void __kasan_poison_vmalloc(const void *start, unsigned long size)
+{
+	/*
+	 * No tagging here.
+	 * The physical pages backing the vmalloc() allocation are poisoned
+	 * through the usual page_alloc paths.
+	 */
+}
+
+#endif
+
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
 void kasan_enable_tagging_sync(void)
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index ce795fb1d2d59..44c6a8aed16cd 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -470,8 +470,16 @@ void kasan_release_vmalloc(unsigned long start, unsigned long end,
 	}
 }
 
-void *__kasan_unpoison_vmalloc(const void *start, unsigned long size)
+void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
+			       kasan_vmalloc_flags_t flags)
 {
+	/*
+	 * Software KASAN modes unpoison both VM_ALLOC and non-VM_ALLOC
+	 * mappings, so the KASAN_VMALLOC_VM_ALLOC flag is ignored.
+	 * Software KASAN modes can't optimize zeroing memory by combining it
+	 * with setting memory tags, so the KASAN_VMALLOC_INIT flag is ignored.
+	 */
+
 	if (!is_vmalloc_or_module_addr(start))
 		return (void *)start;
 
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 4e7dd6ed48474..31c76c0ee987d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1871,8 +1871,12 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node)
 		return NULL;
 	}
 
-	/* Mark the pages as accessible, now that they are mapped. */
-	mem = kasan_unpoison_vmalloc(mem, size);
+	/*
+	 * Mark the pages as accessible, now that they are mapped.
+	 * With hardware tag-based KASAN, marking is skipped for
+	 * non-VM_ALLOC mappings, see __kasan_unpoison_vmalloc().
+	 */
+	mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_NONE);
 
 	return mem;
 }
@@ -2099,9 +2103,12 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 	 * best-effort approach, as they can be mapped outside of vmalloc code.
 	 * For VM_ALLOC mappings, the pages are marked as accessible after
 	 * getting mapped in __vmalloc_node_range().
+	 * With hardware tag-based KASAN, marking is skipped for
+	 * non-VM_ALLOC mappings, see __kasan_unpoison_vmalloc().
 	 */
 	if (!(flags & VM_ALLOC))
-		area->addr = kasan_unpoison_vmalloc(area->addr, requested_size);
+		area->addr = kasan_unpoison_vmalloc(area->addr, requested_size,
+							KASAN_VMALLOC_NONE);
 
 	return area;
 }
@@ -2569,6 +2576,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 {
 	struct vm_struct *area;
 	void *ret;
+	kasan_vmalloc_flags_t kasan_flags;
 	unsigned long real_size = size;
 	unsigned int shift = PAGE_SHIFT;
 
@@ -2581,21 +2589,39 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!area)
 		goto fail;
 
-	/*
-	 * Modify protection bits to allow tagging.
-	 * This must be done before mapping by __vmalloc_area_node().
-	 */
+	/* Prepare arguments for __vmalloc_area_node(). */
 	if (kasan_hw_tags_enabled() &&
-	    pgprot_val(prot) == pgprot_val(PAGE_KERNEL))
+	    pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) {
+		/*
+		 * Modify protection bits to allow tagging.
+		 * This must be done before mapping in __vmalloc_area_node().
+		 */
 		prot = arch_vmap_pgprot_tagged(prot);
 
+		/*
+		 * Skip page_alloc poisoning and zeroing for physical pages
+		 * backing VM_ALLOC mapping. Memory is instead poisoned and
+		 * zeroed by kasan_unpoison_vmalloc().
+		 */
+		gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO;
+	}
+
 	/* Allocate physical pages and map them into vmalloc space. */
 	ret = __vmalloc_area_node(area, gfp_mask, prot, node);
 	if (!ret)
 		return NULL;
 
-	/* Mark the pages as accessible, now that they are mapped. */
-	area->addr = kasan_unpoison_vmalloc(area->addr, real_size);
+	/*
+	 * Mark the pages as accessible, now that they are mapped.
+	 * The init condition should match the one in post_alloc_hook()
+	 * (except for the should_skip_init() check) to make sure that memory
+	 * is initialized under the same conditions regardless of the enabled
+	 * KASAN mode.
+	 */
+	kasan_flags = KASAN_VMALLOC_VM_ALLOC;
+	if (!want_init_on_free() && want_init_on_alloc(gfp_mask))
+		kasan_flags |= KASAN_VMALLOC_INIT;
+	area->addr = kasan_unpoison_vmalloc(area->addr, real_size, kasan_flags);
 
 	/*
 	 * In this function, newly allocated vm_struct has VM_UNINITIALIZED
@@ -3379,10 +3405,13 @@ retry:
 	/*
 	 * Mark allocated areas as accessible. Do it now as a best-effort
 	 * approach, as they can be mapped outside of vmalloc code.
+	 * With hardware tag-based KASAN, marking is skipped for
+	 * non-VM_ALLOC mappings, see __kasan_unpoison_vmalloc().
 	 */
 	for (area = 0; area < nr_vms; area++)
 		vms[area]->addr = kasan_unpoison_vmalloc(vms[area]->addr,
-							 vms[area]->size);
+							 vms[area]->size,
+							 KASAN_VMALLOC_NONE);
 
 	kfree(vas);
 	return vms;
-- 
GitLab


From 460aa619e35fc1082ccc18d3c7e80d6467e164cf Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:53 +1100
Subject: [PATCH 3832/4878] FROMGIT: kasan, vmalloc: only tag normal vmalloc
 allocations

The kernel can use to allocate executable memory.  The only supported way
to do that is via __vmalloc_node_range() with the executable bit set in
the prot argument.  (vmap() resets the bit via pgprot_nx()).

Once tag-based KASAN modes start tagging vmalloc allocations, executing
code from such allocations will lead to the PC register getting a tag,
which is not tolerated by the kernel.

Only tag the allocations for normal kernel pages.

Link: https://lkml.kernel.org/r/fbfd9939a4dc375923c9a5c6b9e7ab05c26b8c6b.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 831af5e7f050e2c4cc0aa1989753d14e6361cae7
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I77c52e16d63f23ed84a6eb488996b1822eeb09e9
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h |  7 ++++---
 mm/kasan/hw_tags.c    |  7 +++++++
 mm/kasan/shadow.c     |  7 +++++++
 mm/vmalloc.c          | 49 +++++++++++++++++++++++++------------------
 4 files changed, 47 insertions(+), 23 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 503cf10e8d57d..1f503288f222b 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -26,9 +26,10 @@ struct kunit_kasan_expectation {
 
 typedef unsigned int __bitwise kasan_vmalloc_flags_t;
 
-#define KASAN_VMALLOC_NONE	0x00u
-#define KASAN_VMALLOC_INIT	0x01u
-#define KASAN_VMALLOC_VM_ALLOC	0x02u
+#define KASAN_VMALLOC_NONE		0x00u
+#define KASAN_VMALLOC_INIT		0x01u
+#define KASAN_VMALLOC_VM_ALLOC		0x02u
+#define KASAN_VMALLOC_PROT_NORMAL	0x04u
 
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
 
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 21104fd518727..2e9378a4f07f1 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -247,6 +247,13 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
 	if (!(flags & KASAN_VMALLOC_VM_ALLOC))
 		return (void *)start;
 
+	/*
+	 * Don't tag executable memory.
+	 * The kernel doesn't tolerate having the PC register tagged.
+	 */
+	if (!(flags & KASAN_VMALLOC_PROT_NORMAL))
+		return (void *)start;
+
 	tag = kasan_random_tag();
 	start = set_tag(start, tag);
 
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index 44c6a8aed16cd..47fee6d7d0a57 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -483,6 +483,13 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
 	if (!is_vmalloc_or_module_addr(start))
 		return (void *)start;
 
+	/*
+	 * Don't tag executable memory.
+	 * The kernel doesn't tolerate having the PC register tagged.
+	 */
+	if (!(flags & KASAN_VMALLOC_PROT_NORMAL))
+		return (void *)start;
+
 	start = set_tag(start, kasan_random_tag());
 	kasan_unpoison(start, size, false);
 	return (void *)start;
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 31c76c0ee987d..bf3896abd9d5b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1876,7 +1876,7 @@ void *vm_map_ram(struct page **pages, unsigned int count, int node)
 	 * With hardware tag-based KASAN, marking is skipped for
 	 * non-VM_ALLOC mappings, see __kasan_unpoison_vmalloc().
 	 */
-	mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_NONE);
+	mem = kasan_unpoison_vmalloc(mem, size, KASAN_VMALLOC_PROT_NORMAL);
 
 	return mem;
 }
@@ -2108,7 +2108,7 @@ static struct vm_struct *__get_vm_area_node(unsigned long size,
 	 */
 	if (!(flags & VM_ALLOC))
 		area->addr = kasan_unpoison_vmalloc(area->addr, requested_size,
-							KASAN_VMALLOC_NONE);
+						    KASAN_VMALLOC_PROT_NORMAL);
 
 	return area;
 }
@@ -2576,7 +2576,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 {
 	struct vm_struct *area;
 	void *ret;
-	kasan_vmalloc_flags_t kasan_flags;
+	kasan_vmalloc_flags_t kasan_flags = KASAN_VMALLOC_NONE;
 	unsigned long real_size = size;
 	unsigned int shift = PAGE_SHIFT;
 
@@ -2589,21 +2589,28 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!area)
 		goto fail;
 
-	/* Prepare arguments for __vmalloc_area_node(). */
-	if (kasan_hw_tags_enabled() &&
-	    pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) {
-		/*
-		 * Modify protection bits to allow tagging.
-		 * This must be done before mapping in __vmalloc_area_node().
-		 */
-		prot = arch_vmap_pgprot_tagged(prot);
+	/*
+	 * Prepare arguments for __vmalloc_area_node() and
+	 * kasan_unpoison_vmalloc().
+	 */
+	if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) {
+		if (kasan_hw_tags_enabled()) {
+			/*
+			 * Modify protection bits to allow tagging.
+			 * This must be done before mapping.
+			 */
+			prot = arch_vmap_pgprot_tagged(prot);
 
-		/*
-		 * Skip page_alloc poisoning and zeroing for physical pages
-		 * backing VM_ALLOC mapping. Memory is instead poisoned and
-		 * zeroed by kasan_unpoison_vmalloc().
-		 */
-		gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO;
+			/*
+			 * Skip page_alloc poisoning and zeroing for physical
+			 * pages backing VM_ALLOC mapping. Memory is instead
+			 * poisoned and zeroed by kasan_unpoison_vmalloc().
+			 */
+			gfp_mask |= __GFP_SKIP_KASAN_UNPOISON | __GFP_SKIP_ZERO;
+		}
+
+		/* Take note that the mapping is PAGE_KERNEL. */
+		kasan_flags |= KASAN_VMALLOC_PROT_NORMAL;
 	}
 
 	/* Allocate physical pages and map them into vmalloc space. */
@@ -2617,10 +2624,13 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	 * (except for the should_skip_init() check) to make sure that memory
 	 * is initialized under the same conditions regardless of the enabled
 	 * KASAN mode.
+	 * Tag-based KASAN modes only assign tags to normal non-executable
+	 * allocations, see __kasan_unpoison_vmalloc().
 	 */
-	kasan_flags = KASAN_VMALLOC_VM_ALLOC;
+	kasan_flags |= KASAN_VMALLOC_VM_ALLOC;
 	if (!want_init_on_free() && want_init_on_alloc(gfp_mask))
 		kasan_flags |= KASAN_VMALLOC_INIT;
+	/* KASAN_VMALLOC_PROT_NORMAL already set if required. */
 	area->addr = kasan_unpoison_vmalloc(area->addr, real_size, kasan_flags);
 
 	/*
@@ -3410,8 +3420,7 @@ retry:
 	 */
 	for (area = 0; area < nr_vms; area++)
 		vms[area]->addr = kasan_unpoison_vmalloc(vms[area]->addr,
-							 vms[area]->size,
-							 KASAN_VMALLOC_NONE);
+				vms[area]->size, KASAN_VMALLOC_PROT_NORMAL);
 
 	kfree(vas);
 	return vms;
-- 
GitLab


From d3578ba7a5aeedd6952925308642ab7e1b43b125 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:53 +1100
Subject: [PATCH 3833/4878] BACKPORT: FROMGIT: kasan, arm64: don't tag
 executable vmalloc allocations

(Backport: resolve conflict in bpf_jit_alloc_exec.)

Besides asking vmalloc memory to be executable via the prot argument of
__vmalloc_node_range() (see the previous patch), the kernel can skip that
bit and instead mark memory as executable via set_memory_x().

Once tag-based KASAN modes start tagging vmalloc allocations, executing
code from such allocations will lead to the PC register getting a tag,
which is not tolerated by the kernel.

Generic kernel code typically allocates memory via module_alloc() if it
intends to mark memory as executable.  (On arm64 module_alloc() uses
__vmalloc_node_range() without setting the executable bit).

Thus, reset pointer tags of pointers returned from module_alloc().

However, on arm64 there's an exception: the eBPF subsystem.  Instead of
using module_alloc(), it uses vmalloc() (via bpf_jit_alloc_exec()) to
allocate its JIT region.

Thus, reset pointer tags of pointers returned from bpf_jit_alloc_exec().

Resetting tags for these pointers results in untagged pointers being
passed to set_memory_x().  This causes conflicts in arithmetic checks in
change_memory_common(), as vm_struct->addr pointer returned by
find_vm_area() is tagged.

Reset pointer tag of find_vm_area(addr)->addr in change_memory_common().

Link: https://lkml.kernel.org/r/b7b2595423340cd7d76b770e5d519acf3b72f0ab.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit c9944678742d7377382423d84b7883cc163e663f
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I19bea2781827cffe5d4a2a0a0a7c36c4e51776f3
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/module.c    |  3 ++-
 arch/arm64/mm/pageattr.c      |  2 +-
 arch/arm64/net/bpf_jit_comp.c | 10 ++++++----
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index d3a1fa8183487..f2d4bb14bfabe 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -63,7 +63,8 @@ void *module_alloc(unsigned long size)
 		return NULL;
 	}
 
-	return p;
+	/* Memory is intended to be executable, reset the pointer tag. */
+	return kasan_reset_tag(p);
 }
 
 enum aarch64_reloc_op {
diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
index 1b94f5b826545..8cacfbc2932bd 100644
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -80,7 +80,7 @@ static int change_memory_common(unsigned long addr, int numpages,
 	 */
 	area = find_vm_area((void *)addr);
 	if (!area ||
-	    end > (unsigned long)area->addr + area->size ||
+	    end > (unsigned long)kasan_reset_tag(area->addr) + area->size ||
 	    !(area->flags & VM_ALLOC))
 		return -EINVAL;
 
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index dab899adfc3b5..8e1d5a37e5c94 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -1144,10 +1144,12 @@ u64 bpf_jit_alloc_exec_limit(void)
 
 void *bpf_jit_alloc_exec(unsigned long size)
 {
-	return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,
-				    BPF_JIT_REGION_END, GFP_KERNEL,
-				    PAGE_KERNEL, 0, NUMA_NO_NODE,
-				    __builtin_return_address(0));
+	void *p = __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,
+				       BPF_JIT_REGION_END, GFP_KERNEL,
+				       PAGE_KERNEL, 0, NUMA_NO_NODE,
+				       __builtin_return_address(0));
+	/* Memory is intended to be executable, reset the pointer tag. */
+	return kasan_reset_tag(p);
 }
 
 void bpf_jit_free_exec(void *addr)
-- 
GitLab


From 524c35d4e49b3321274b964fe1ffaee7bef5c250 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:54 +1100
Subject: [PATCH 3834/4878] FROMGIT: kasan: mark kasan_arg_stacktrace as
 __initdata

As kasan_arg_stacktrace is only used in __init functions, mark it as
__initdata instead of __ro_after_init to allow it be freed after boot.

The other enums for KASAN args are used in kasan_init_hw_tags_cpu(), which
is not marked as __init as a CPU can be hot-plugged after boot.  Clarify
this in a comment.

Link: https://lkml.kernel.org/r/7fa090865614f8e0c6c1265508efb1d429afaa50.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Suggested-by: Marco Elver <elver@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 56c115f0f69d34788175167e48d0a3b397430569
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I053f38a96a200588a3bb42bf42c458f3d541d588
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/hw_tags.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 2e9378a4f07f1..6509809dd5d8c 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -40,7 +40,7 @@ enum kasan_arg_stacktrace {
 
 static enum kasan_arg kasan_arg __ro_after_init;
 static enum kasan_arg_mode kasan_arg_mode __ro_after_init;
-static enum kasan_arg_stacktrace kasan_arg_stacktrace __ro_after_init;
+static enum kasan_arg_stacktrace kasan_arg_stacktrace __initdata;
 
 /* Whether KASAN is enabled at all. */
 DEFINE_STATIC_KEY_FALSE(kasan_flag_enabled);
@@ -116,7 +116,10 @@ static inline const char *kasan_mode_info(void)
 		return "sync";
 }
 
-/* kasan_init_hw_tags_cpu() is called for each CPU. */
+/*
+ * kasan_init_hw_tags_cpu() is called for each CPU.
+ * Not marked as __init as a CPU can be hot-plugged after boot.
+ */
 void kasan_init_hw_tags_cpu(void)
 {
 	/*
-- 
GitLab


From a375facb3954ca43b978a98ec136017a76322047 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:54 +1100
Subject: [PATCH 3835/4878] FROMGIT: kasan: clean up feature flags for HW_TAGS
 mode

- Untie kasan_init_hw_tags() code from the default values of
  kasan_arg_mode and kasan_arg_stacktrace.

- Move static_branch_enable(&kasan_flag_enabled) to the end of
  kasan_init_hw_tags_cpu().

- Remove excessive comments in kasan_arg_mode switch.

- Add new comments.

Link: https://lkml.kernel.org/r/76ebb340265be57a218564a497e1f52ff36a3879.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 040841c1692935d19f55129281611f164f9ca11f
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I697cd0746efe502281905d2ede8bd701a17b076b
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/hw_tags.c | 38 +++++++++++++++++++++-----------------
 mm/kasan/kasan.h   |  2 +-
 2 files changed, 22 insertions(+), 18 deletions(-)

diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 6509809dd5d8c..6a3146d1ccc55 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -42,16 +42,22 @@ static enum kasan_arg kasan_arg __ro_after_init;
 static enum kasan_arg_mode kasan_arg_mode __ro_after_init;
 static enum kasan_arg_stacktrace kasan_arg_stacktrace __initdata;
 
-/* Whether KASAN is enabled at all. */
+/*
+ * Whether KASAN is enabled at all.
+ * The value remains false until KASAN is initialized by kasan_init_hw_tags().
+ */
 DEFINE_STATIC_KEY_FALSE(kasan_flag_enabled);
 EXPORT_SYMBOL(kasan_flag_enabled);
 
-/* Whether the selected mode is synchronous/asynchronous/asymmetric.*/
+/*
+ * Whether the selected mode is synchronous, asynchronous, or asymmetric.
+ * Defaults to KASAN_MODE_SYNC.
+ */
 enum kasan_mode kasan_mode __ro_after_init;
 EXPORT_SYMBOL_GPL(kasan_mode);
 
 /* Whether to collect alloc/free stack traces. */
-DEFINE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
+DEFINE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
 
 /* kasan=off/on */
 static int __init early_kasan_flag(char *arg)
@@ -127,7 +133,11 @@ void kasan_init_hw_tags_cpu(void)
 	 * as this function is only called for MTE-capable hardware.
 	 */
 
-	/* If KASAN is disabled via command line, don't initialize it. */
+	/*
+	 * If KASAN is disabled via command line, don't initialize it.
+	 * When this function is called, kasan_flag_enabled is not yet
+	 * set by kasan_init_hw_tags(). Thus, check kasan_arg instead.
+	 */
 	if (kasan_arg == KASAN_ARG_OFF)
 		return;
 
@@ -154,42 +164,36 @@ void __init kasan_init_hw_tags(void)
 	if (kasan_arg == KASAN_ARG_OFF)
 		return;
 
-	/* Enable KASAN. */
-	static_branch_enable(&kasan_flag_enabled);
-
 	switch (kasan_arg_mode) {
 	case KASAN_ARG_MODE_DEFAULT:
-		/*
-		 * Default to sync mode.
-		 */
-		fallthrough;
+		/* Default is specified by kasan_mode definition. */
+		break;
 	case KASAN_ARG_MODE_SYNC:
-		/* Sync mode enabled. */
 		kasan_mode = KASAN_MODE_SYNC;
 		break;
 	case KASAN_ARG_MODE_ASYNC:
-		/* Async mode enabled. */
 		kasan_mode = KASAN_MODE_ASYNC;
 		break;
 	case KASAN_ARG_MODE_ASYMM:
-		/* Asymm mode enabled. */
 		kasan_mode = KASAN_MODE_ASYMM;
 		break;
 	}
 
 	switch (kasan_arg_stacktrace) {
 	case KASAN_ARG_STACKTRACE_DEFAULT:
-		/* Default to enabling stack trace collection. */
-		static_branch_enable(&kasan_flag_stacktrace);
+		/* Default is specified by kasan_flag_stacktrace definition. */
 		break;
 	case KASAN_ARG_STACKTRACE_OFF:
-		/* Do nothing, kasan_flag_stacktrace keeps its default value. */
+		static_branch_disable(&kasan_flag_stacktrace);
 		break;
 	case KASAN_ARG_STACKTRACE_ON:
 		static_branch_enable(&kasan_flag_stacktrace);
 		break;
 	}
 
+	/* KASAN is now initialized, enable it. */
+	static_branch_enable(&kasan_flag_enabled);
+
 	pr_info("KernelAddressSanitizer initialized (hw-tags, mode=%s, stacktrace=%s)\n",
 		kasan_mode_info(),
 		kasan_stack_collection_enabled() ? "on" : "off");
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 62df26615045d..318a1ef77b5a3 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -12,7 +12,7 @@
 #include <linux/static_key.h>
 #include "../slab.h"
 
-DECLARE_STATIC_KEY_FALSE(kasan_flag_stacktrace);
+DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
 
 enum kasan_mode {
 	KASAN_MODE_SYNC,
-- 
GitLab


From 3bf53c469c5473ebcc1825ab8511a48d5c2544f3 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:54 +1100
Subject: [PATCH 3836/4878] FROMGIT: kasan: add kasan.vmalloc command line flag

Allow disabling vmalloc() tagging for HW_TAGS KASAN via a kasan.vmalloc
command line switch.

This is a fail-safe switch intended for production systems that enable
HW_TAGS KASAN.  In case vmalloc() tagging ends up having an issue not
detected during testing but that manifests in production, kasan.vmalloc
allows to turn vmalloc() tagging off while leaving page_alloc/slab tagging
on.

Link: https://lkml.kernel.org/r/904f6d4dfa94870cc5fc2660809e093fd0d27c3b.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit b15ec419b7036eb365823f4d44b97bf5180a789b
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I28a8baedfbe08079b16e3d8cd16e558bcc4cc252
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/hw_tags.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
 mm/kasan/kasan.h   |  6 ++++++
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 6a3146d1ccc55..fad1887e54c05 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -32,6 +32,12 @@ enum kasan_arg_mode {
 	KASAN_ARG_MODE_ASYMM,
 };
 
+enum kasan_arg_vmalloc {
+	KASAN_ARG_VMALLOC_DEFAULT,
+	KASAN_ARG_VMALLOC_OFF,
+	KASAN_ARG_VMALLOC_ON,
+};
+
 enum kasan_arg_stacktrace {
 	KASAN_ARG_STACKTRACE_DEFAULT,
 	KASAN_ARG_STACKTRACE_OFF,
@@ -40,6 +46,7 @@ enum kasan_arg_stacktrace {
 
 static enum kasan_arg kasan_arg __ro_after_init;
 static enum kasan_arg_mode kasan_arg_mode __ro_after_init;
+static enum kasan_arg_vmalloc kasan_arg_vmalloc __initdata;
 static enum kasan_arg_stacktrace kasan_arg_stacktrace __initdata;
 
 /*
@@ -56,6 +63,9 @@ EXPORT_SYMBOL(kasan_flag_enabled);
 enum kasan_mode kasan_mode __ro_after_init;
 EXPORT_SYMBOL_GPL(kasan_mode);
 
+/* Whether to enable vmalloc tagging. */
+DEFINE_STATIC_KEY_TRUE(kasan_flag_vmalloc);
+
 /* Whether to collect alloc/free stack traces. */
 DEFINE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
 
@@ -95,6 +105,23 @@ static int __init early_kasan_mode(char *arg)
 }
 early_param("kasan.mode", early_kasan_mode);
 
+/* kasan.vmalloc=off/on */
+static int __init early_kasan_flag_vmalloc(char *arg)
+{
+	if (!arg)
+		return -EINVAL;
+
+	if (!strcmp(arg, "off"))
+		kasan_arg_vmalloc = KASAN_ARG_VMALLOC_OFF;
+	else if (!strcmp(arg, "on"))
+		kasan_arg_vmalloc = KASAN_ARG_VMALLOC_ON;
+	else
+		return -EINVAL;
+
+	return 0;
+}
+early_param("kasan.vmalloc", early_kasan_flag_vmalloc);
+
 /* kasan.stacktrace=off/on */
 static int __init early_kasan_flag_stacktrace(char *arg)
 {
@@ -179,6 +206,18 @@ void __init kasan_init_hw_tags(void)
 		break;
 	}
 
+	switch (kasan_arg_vmalloc) {
+	case KASAN_ARG_VMALLOC_DEFAULT:
+		/* Default is specified by kasan_flag_vmalloc definition. */
+		break;
+	case KASAN_ARG_VMALLOC_OFF:
+		static_branch_disable(&kasan_flag_vmalloc);
+		break;
+	case KASAN_ARG_VMALLOC_ON:
+		static_branch_enable(&kasan_flag_vmalloc);
+		break;
+	}
+
 	switch (kasan_arg_stacktrace) {
 	case KASAN_ARG_STACKTRACE_DEFAULT:
 		/* Default is specified by kasan_flag_stacktrace definition. */
@@ -194,8 +233,9 @@ void __init kasan_init_hw_tags(void)
 	/* KASAN is now initialized, enable it. */
 	static_branch_enable(&kasan_flag_enabled);
 
-	pr_info("KernelAddressSanitizer initialized (hw-tags, mode=%s, stacktrace=%s)\n",
+	pr_info("KernelAddressSanitizer initialized (hw-tags, mode=%s, vmalloc=%s, stacktrace=%s)\n",
 		kasan_mode_info(),
+		kasan_vmalloc_enabled() ? "on" : "off",
 		kasan_stack_collection_enabled() ? "on" : "off");
 }
 
@@ -228,6 +268,9 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
 	u8 tag;
 	unsigned long redzone_start, redzone_size;
 
+	if (!kasan_vmalloc_enabled())
+		return (void *)start;
+
 	if (!is_vmalloc_or_module_addr(start))
 		return (void *)start;
 
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 318a1ef77b5a3..3fb9a1e847194 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -12,6 +12,7 @@
 #include <linux/static_key.h>
 #include "../slab.h"
 
+DECLARE_STATIC_KEY_TRUE(kasan_flag_vmalloc);
 DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
 
 enum kasan_mode {
@@ -22,6 +23,11 @@ enum kasan_mode {
 
 extern enum kasan_mode kasan_mode __ro_after_init;
 
+static inline bool kasan_vmalloc_enabled(void)
+{
+	return static_branch_likely(&kasan_flag_vmalloc);
+}
+
 static inline bool kasan_stack_collection_enabled(void)
 {
 	return static_branch_unlikely(&kasan_flag_stacktrace);
-- 
GitLab


From a5d38f59423b64d2b56495fa3d3f9442c70e2d86 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:54 +1100
Subject: [PATCH 3837/4878] FROMGIT: kasan: allow enabling KASAN_VMALLOC and
 SW/HW_TAGS

Allow enabling CONFIG_KASAN_VMALLOC with SW_TAGS and HW_TAGS KASAN modes.

Also adjust CONFIG_KASAN_VMALLOC description:

- Mention HW_TAGS support.
- Remove unneeded internal details: they have no place in Kconfig
  description and are already explained in the documentation.

Link: https://lkml.kernel.org/r/bfa0fdedfe25f65e5caa4e410f074ddbac7a0b59.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 7991da4522cd6858415dc127081fb70133db874e
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ie11424d8b35158c729e41a8b93ca036df4665f58
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/Kconfig.kasan | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan
index dd640b34ecdee..fbfc705e7f798 100644
--- a/lib/Kconfig.kasan
+++ b/lib/Kconfig.kasan
@@ -187,17 +187,17 @@ config KASAN_TAGS_IDENTIFY
 	  memory consumption.
 
 config KASAN_VMALLOC
-	bool "Back mappings in vmalloc space with real shadow memory"
-	depends on KASAN_GENERIC && HAVE_ARCH_KASAN_VMALLOC
+	bool "Check accesses to vmalloc allocations"
+	depends on HAVE_ARCH_KASAN_VMALLOC
 	help
-	  By default, the shadow region for vmalloc space is the read-only
-	  zero page. This means that KASAN cannot detect errors involving
-	  vmalloc space.
-
-	  Enabling this option will hook in to vmap/vmalloc and back those
-	  mappings with real shadow memory allocated on demand. This allows
-	  for KASAN to detect more sorts of errors (and to support vmapped
-	  stacks), but at the cost of higher memory usage.
+	  This mode makes KASAN check accesses to vmalloc allocations for
+	  validity.
+
+	  With software KASAN modes, checking is done for all types of vmalloc
+	  allocations. Enabling this option leads to higher memory usage.
+
+	  With hardware tag-based KASAN, only VM_ALLOC mappings are checked.
+	  There is no additional memory usage.
 
 config KASAN_KUNIT_TEST
 	tristate "KUnit-compatible tests of KASAN bug detection capabilities" if !KUNIT_ALL_TESTS
-- 
GitLab


From 7c711560395d6a9a0a1f2f1f6d50c0139f206d4e Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:55 +1100
Subject: [PATCH 3838/4878] FROMGIT: arm64: select KASAN_VMALLOC for SW/HW_TAGS
 modes

Generic KASAN already selects KASAN_VMALLOC to allow VMAP_STACK to be
selected unconditionally, see commit acc3042d62cb9 ("arm64: Kconfig:
select KASAN_VMALLOC if KANSAN_GENERIC is enabled").

The same change is needed for SW_TAGS KASAN.

HW_TAGS KASAN does not require enabling KASAN_VMALLOC for VMAP_STACK, they
already work together as is.  Still, selecting KASAN_VMALLOC still makes
sense to make vmalloc() always protected.  In case any bugs in KASAN's
vmalloc() support are discovered, the command line kasan.vmalloc flag can
be used to disable vmalloc() checking.

Select KASAN_VMALLOC for all KASAN modes for arm64.

Link: https://lkml.kernel.org/r/99d6b3ebf57fc1930ff71f9a4a71eea19881b270.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 406e112a59dd26bb50df335d03275f893cbcb5ee
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: Ib3a328e2a90d6ab795ca10feebadc78e2644bc2a
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6ab1e6ca20579..5e46425a6023c 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -198,7 +198,7 @@ config ARM64
 	select IOMMU_DMA if IOMMU_SUPPORT
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
-	select KASAN_VMALLOC if KASAN_GENERIC
+	select KASAN_VMALLOC if KASAN
 	select MODULES_USE_ELF_RELA
 	select NEED_DMA_MAP_STATE
 	select NEED_SG_DMA_LENGTH
-- 
GitLab


From b770e4d06dd50896a1decc5448e09b7ef8bee7ce Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:55 +1100
Subject: [PATCH 3839/4878] FROMGIT: kasan: documentation updates

Update KASAN documentation:

- Bump Clang version requirement for HW_TAGS as ARM64_MTE depends on
  AS_HAS_LSE_ATOMICS as of commit 2decad92f4731 ("arm64: mte: Ensure
  TIF_MTE_ASYNC_FAULT is set atomically"), which requires Clang 12.
- Add description of the new kasan.vmalloc command line flag.
- Mention that SW_TAGS and HW_TAGS modes now support vmalloc tagging.
- Explicitly say that the "Shadow memory" section is only applicable
  to software KASAN modes.
- Mention that shadow-based KASAN_VMALLOC is supported on arm64.

Link: https://lkml.kernel.org/r/a61189128fa3f9fbcfd9884ff653d401864b8e74.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 8b6babb4dc085454267a3fd6a0208af57085890d
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Bug: 217222520
Change-Id: I3fba54e4e207392259bc97e4c963f535ff371e55
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/dev-tools/kasan.rst | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 8089c559d339c..7614a1fc30fac 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -30,7 +30,7 @@ Software tag-based KASAN mode is only supported in Clang.
 
 The hardware KASAN mode (#3) relies on hardware to perform the checks but
 still requires a compiler version that supports memory tagging instructions.
-This mode is supported in GCC 10+ and Clang 11+.
+This mode is supported in GCC 10+ and Clang 12+.
 
 Both software KASAN modes work with SLUB and SLAB memory allocators,
 while the hardware tag-based KASAN currently only supports SLUB.
@@ -206,6 +206,9 @@ additional boot parameters that allow disabling KASAN or controlling features:
   Asymmetric mode: a bad access is detected synchronously on reads and
   asynchronously on writes.
 
+- ``kasan.vmalloc=off`` or ``=on`` disables or enables tagging of vmalloc
+  allocations (default: ``on``).
+
 - ``kasan.stacktrace=off`` or ``=on`` disables or enables alloc and free stack
   traces collection (default: ``on``).
 
@@ -279,8 +282,8 @@ Software tag-based KASAN uses 0xFF as a match-all pointer tag (accesses through
 pointers with the 0xFF pointer tag are not checked). The value 0xFE is currently
 reserved to tag freed memory regions.
 
-Software tag-based KASAN currently only supports tagging of slab and page_alloc
-memory.
+Software tag-based KASAN currently only supports tagging of slab, page_alloc,
+and vmalloc memory.
 
 Hardware tag-based KASAN
 ~~~~~~~~~~~~~~~~~~~~~~~~
@@ -303,8 +306,8 @@ Hardware tag-based KASAN uses 0xFF as a match-all pointer tag (accesses through
 pointers with the 0xFF pointer tag are not checked). The value 0xFE is currently
 reserved to tag freed memory regions.
 
-Hardware tag-based KASAN currently only supports tagging of slab and page_alloc
-memory.
+Hardware tag-based KASAN currently only supports tagging of slab, page_alloc,
+and VM_ALLOC-based vmalloc memory.
 
 If the hardware does not support MTE (pre ARMv8.5), hardware tag-based KASAN
 will not be enabled. In this case, all KASAN boot parameters are ignored.
@@ -319,6 +322,8 @@ checking gets disabled.
 Shadow memory
 -------------
 
+The contents of this section are only applicable to software KASAN modes.
+
 The kernel maps memory in several different parts of the address space.
 The range of kernel virtual addresses is large: there is not enough real
 memory to support a real shadow region for every address that could be
@@ -349,7 +354,7 @@ CONFIG_KASAN_VMALLOC
 
 With ``CONFIG_KASAN_VMALLOC``, KASAN can cover vmalloc space at the
 cost of greater memory usage. Currently, this is supported on x86,
-riscv, s390, and powerpc.
+arm64, riscv, s390, and powerpc.
 
 This works by hooking into vmalloc and vmap and dynamically
 allocating real shadow memory to back the mappings.
-- 
GitLab


From 7a3edd87725444a25d56211d371adc00947c6195 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 27 Jan 2022 16:25:55 +1100
Subject: [PATCH 3840/4878] FROMLIST: kasan: improve vmalloc tests

[Combines a FROMGIT patch and a FROMGIT fix with another FROMLIST fix.]

Update the existing vmalloc_oob() test to account for the specifics of the
tag-based modes.  Also add a few new checks and comments.

Add new vmalloc-related tests:

- vmalloc_helpers_tags() to check that exported vmalloc helpers can
  handle tagged pointers.
- vmap_tags() to check that SW_TAGS mode properly tags vmap() mappings.
- vm_map_ram_tags() to check that SW_TAGS mode properly tags
  vm_map_ram() mappings.
- vmalloc_percpu() to check that SW_TAGS mode tags regions allocated
  for __alloc_percpu(). The tagging of per-cpu mappings is best-effort;
  proper tagging is tracked in [1].

[1] https://bugzilla.kernel.org/show_bug.cgi?id=215019

Link: https://lkml.kernel.org/r/bbdc1c0501c5275e7f26fdb8e2a7b14a40a9f36b.1643047180.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 96304a5b9bff6287fe7da9c20f253b3023553782
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
(cherry picked from commit 790a96c47a502de4e415788d5033e9f6938b28e8
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Link: https://lore.kernel.org/linux-mm/865c91ba49b90623ab50c7526b79ccb955f544f0.1644950160.git.andreyknvl@google.com/
Bug: 217222520
Change-Id: Id3eacce3bb8e7cecc2281dec87e5cd36792c2427
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 lib/test_kasan.c | 189 +++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 183 insertions(+), 6 deletions(-)

diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index fbac0342537fa..7d3c5111bbfc5 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -19,6 +19,7 @@
 #include <linux/uaccess.h>
 #include <linux/io.h>
 #include <linux/vmalloc.h>
+#include <linux/set_memory.h>
 
 #include <asm/page.h>
 
@@ -1058,21 +1059,181 @@ static void kmalloc_double_kzfree(struct kunit *test)
 	KUNIT_EXPECT_KASAN_FAIL(test, kfree_sensitive(ptr));
 }
 
+static void vmalloc_helpers_tags(struct kunit *test)
+{
+	void *ptr;
+	int rv;
+
+	/* This test is intended for tag-based modes. */
+	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);
+
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_VMALLOC);
+
+	ptr = vmalloc(PAGE_SIZE);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
+
+	/* Check that the returned pointer is tagged. */
+	KUNIT_EXPECT_GE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_MIN);
+	KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);
+
+	/* Make sure exported vmalloc helpers handle tagged pointers. */
+	KUNIT_ASSERT_TRUE(test, is_vmalloc_addr(ptr));
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vmalloc_to_page(ptr));
+
+	/* Make sure vmalloc'ed memory permissions can be changed. */
+	rv = set_memory_ro((unsigned long)ptr, 1);
+	KUNIT_ASSERT_GE(test, rv, 0);
+	rv = set_memory_rw((unsigned long)ptr, 1);
+	KUNIT_ASSERT_GE(test, rv, 0);
+
+	vfree(ptr);
+}
+
 static void vmalloc_oob(struct kunit *test)
 {
-	void *area;
+	char *v_ptr, *p_ptr;
+	struct page *page;
+	size_t size = PAGE_SIZE / 2 - KASAN_GRANULE_SIZE - 5;
 
 	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_VMALLOC);
 
+	v_ptr = vmalloc(size);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);
+
+	OPTIMIZER_HIDE_VAR(v_ptr);
+
 	/*
-	 * We have to be careful not to hit the guard page.
+	 * We have to be careful not to hit the guard page in vmalloc tests.
 	 * The MMU will catch that and crash us.
 	 */
-	area = vmalloc(3000);
-	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, area);
 
-	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)area)[3100]);
-	vfree(area);
+	/* Make sure in-bounds accesses are valid. */
+	v_ptr[0] = 0;
+	v_ptr[size - 1] = 0;
+
+	/*
+	 * An unaligned access past the requested vmalloc size.
+	 * Only generic KASAN can precisely detect these.
+	 */
+	if (IS_ENABLED(CONFIG_KASAN_GENERIC))
+		KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)v_ptr)[size]);
+
+	/* An aligned access into the first out-of-bounds granule. */
+	KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)v_ptr)[size + 5]);
+
+	/* Check that in-bounds accesses to the physical page are valid. */
+	page = vmalloc_to_page(v_ptr);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, page);
+	p_ptr = page_address(page);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_ptr);
+	p_ptr[0] = 0;
+
+	vfree(v_ptr);
+
+	/*
+	 * We can't check for use-after-unmap bugs in this nor in the following
+	 * vmalloc tests, as the page might be fully unmapped and accessing it
+	 * will crash the kernel.
+	 */
+}
+
+static void vmap_tags(struct kunit *test)
+{
+	char *p_ptr, *v_ptr;
+	struct page *p_page, *v_page;
+
+	/*
+	 * This test is specifically crafted for the software tag-based mode,
+	 * the only tag-based mode that poisons vmap mappings.
+	 */
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_SW_TAGS);
+
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_VMALLOC);
+
+	p_page = alloc_pages(GFP_KERNEL, 1);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_page);
+	p_ptr = page_address(p_page);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_ptr);
+
+	v_ptr = vmap(&p_page, 1, VM_MAP, PAGE_KERNEL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);
+
+	/*
+	 * We can't check for out-of-bounds bugs in this nor in the following
+	 * vmalloc tests, as allocations have page granularity and accessing
+	 * the guard page will crash the kernel.
+	 */
+
+	KUNIT_EXPECT_GE(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_MIN);
+	KUNIT_EXPECT_LT(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_KERNEL);
+
+	/* Make sure that in-bounds accesses through both pointers work. */
+	*p_ptr = 0;
+	*v_ptr = 0;
+
+	/* Make sure vmalloc_to_page() correctly recovers the page pointer. */
+	v_page = vmalloc_to_page(v_ptr);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_page);
+	KUNIT_EXPECT_PTR_EQ(test, p_page, v_page);
+
+	vunmap(v_ptr);
+	free_pages((unsigned long)p_ptr, 1);
+}
+
+static void vm_map_ram_tags(struct kunit *test)
+{
+	char *p_ptr, *v_ptr;
+	struct page *page;
+
+	/*
+	 * This test is specifically crafted for the software tag-based mode,
+	 * the only tag-based mode that poisons vm_map_ram mappings.
+	 */
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_SW_TAGS);
+
+	page = alloc_pages(GFP_KERNEL, 1);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, page);
+	p_ptr = page_address(page);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, p_ptr);
+
+	v_ptr = vm_map_ram(&page, 1, -1);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);
+
+	KUNIT_EXPECT_GE(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_MIN);
+	KUNIT_EXPECT_LT(test, (u8)get_tag(v_ptr), (u8)KASAN_TAG_KERNEL);
+
+	/* Make sure that in-bounds accesses through both pointers work. */
+	*p_ptr = 0;
+	*v_ptr = 0;
+
+	vm_unmap_ram(v_ptr, 1);
+	free_pages((unsigned long)p_ptr, 1);
+}
+
+static void vmalloc_percpu(struct kunit *test)
+{
+	char __percpu *ptr;
+	int cpu;
+
+	/*
+	 * This test is specifically crafted for the software tag-based mode,
+	 * the only tag-based mode that poisons percpu mappings.
+	 */
+	KASAN_TEST_NEEDS_CONFIG_ON(test, CONFIG_KASAN_SW_TAGS);
+
+	ptr = __alloc_percpu(PAGE_SIZE, PAGE_SIZE);
+
+	for_each_possible_cpu(cpu) {
+		char *c_ptr = per_cpu_ptr(ptr, cpu);
+
+		KUNIT_EXPECT_GE(test, (u8)get_tag(c_ptr), (u8)KASAN_TAG_MIN);
+		KUNIT_EXPECT_LT(test, (u8)get_tag(c_ptr), (u8)KASAN_TAG_KERNEL);
+
+		/* Make sure that in-bounds accesses don't crash the kernel. */
+		*c_ptr = 0;
+	}
+
+	free_percpu(ptr);
 }
 
 /*
@@ -1106,6 +1267,18 @@ static void match_all_not_assigned(struct kunit *test)
 		KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);
 		free_pages((unsigned long)ptr, order);
 	}
+
+	if (!IS_ENABLED(CONFIG_KASAN_VMALLOC))
+		return;
+
+	for (i = 0; i < 256; i++) {
+		size = (get_random_int() % 1024) + 1;
+		ptr = vmalloc(size);
+		KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ptr);
+		KUNIT_EXPECT_GE(test, (u8)get_tag(ptr), (u8)KASAN_TAG_MIN);
+		KUNIT_EXPECT_LT(test, (u8)get_tag(ptr), (u8)KASAN_TAG_KERNEL);
+		vfree(ptr);
+	}
 }
 
 /* Check that 0xff works as a match-all pointer tag for tag-based modes. */
@@ -1211,7 +1384,11 @@ static struct kunit_case kasan_kunit_test_cases[] = {
 	KUNIT_CASE(kasan_bitops_generic),
 	KUNIT_CASE(kasan_bitops_tags),
 	KUNIT_CASE(kmalloc_double_kzfree),
+	KUNIT_CASE(vmalloc_helpers_tags),
 	KUNIT_CASE(vmalloc_oob),
+	KUNIT_CASE(vmap_tags),
+	KUNIT_CASE(vm_map_ram_tags),
+	KUNIT_CASE(vmalloc_percpu),
 	KUNIT_CASE(match_all_not_assigned),
 	KUNIT_CASE(match_all_ptr_tag),
 	KUNIT_CASE(match_all_mem_tag),
-- 
GitLab


From 7fea2e52000357abe4c2db94e177b72f02b5597f Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@foxmail.com>
Date: Sat, 15 Jan 2022 09:11:11 +0800
Subject: [PATCH 3841/4878] integrity: check the return value of
 audit_log_start()

commit 83230351c523b04ff8a029a4bdf97d881ecb96fc upstream.

audit_log_start() returns audit_buffer pointer on success or NULL on
error, so it is better to check the return value of it.

Fixes: 3323eec921ef ("integrity: IMA as an integrity service provider")
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/integrity/integrity_audit.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/integrity/integrity_audit.c b/security/integrity/integrity_audit.c
index 29220056207f4..0ec5e4c22cb2a 100644
--- a/security/integrity/integrity_audit.c
+++ b/security/integrity/integrity_audit.c
@@ -45,6 +45,8 @@ void integrity_audit_message(int audit_msgno, struct inode *inode,
 		return;
 
 	ab = audit_log_start(audit_context(), GFP_KERNEL, audit_msgno);
+	if (!ab)
+		return;
 	audit_log_format(ab, "pid=%d uid=%u auid=%u ses=%u",
 			 task_pid_nr(current),
 			 from_kuid(&init_user_ns, current_uid()),
-- 
GitLab


From 0795b7100d25994080343b8dabb60e903747bf42 Mon Sep 17 00:00:00 2001
From: Stefan Berger <stefanb@linux.ibm.com>
Date: Tue, 25 Jan 2022 17:46:23 -0500
Subject: [PATCH 3842/4878] ima: Remove ima_policy file before directory

commit f7333b9572d0559e00352a926c92f29f061b4569 upstream.

The removal of ima_dir currently fails since ima_policy still exists, so
remove the ima_policy file before removing the directory.

Fixes: 4af4662fa4a9 ("integrity: IMA policy")
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/integrity/ima/ima_fs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index ea8ff8a07b36b..98d5a800fe5b0 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -496,12 +496,12 @@ int __init ima_fs_init(void)
 
 	return 0;
 out:
+	securityfs_remove(ima_policy);
 	securityfs_remove(violations);
 	securityfs_remove(runtime_measurements_count);
 	securityfs_remove(ascii_runtime_measurements);
 	securityfs_remove(binary_runtime_measurements);
 	securityfs_remove(ima_symlink);
 	securityfs_remove(ima_dir);
-	securityfs_remove(ima_policy);
 	return -1;
 }
-- 
GitLab


From 8171c8a99feab7d476bcc5c48b87e285bb5650a0 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@huawei.com>
Date: Mon, 31 Jan 2022 18:11:39 +0100
Subject: [PATCH 3843/4878] ima: Allow template selection with
 ima_template[_fmt]= after ima_hash=

commit bb8e52e4906f148c2faf6656b5106cf7233e9301 upstream.

Commit c2426d2ad5027 ("ima: added support for new kernel cmdline parameter
ima_template_fmt") introduced an additional check on the ima_template
variable to avoid multiple template selection.

Unfortunately, ima_template could be also set by the setup function of the
ima_hash= parameter, when it calls ima_template_desc_current(). This causes
attempts to choose a new template with ima_template= or with
ima_template_fmt=, after ima_hash=, to be ignored.

Achieve the goal of the commit mentioned with the new static variable
template_setup_done, so that template selection requests after ima_hash=
are not ignored.

Finally, call ima_init_template_list(), if not already done, to initialize
the list of templates before lookup_template_desc() is called.

Reported-by: Guo Zihua <guozihua@huawei.com>
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org
Fixes: c2426d2ad5027 ("ima: added support for new kernel cmdline parameter ima_template_fmt")
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/integrity/ima/ima_template.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index f83255a39e653..f64c01d53e96a 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -27,6 +27,7 @@ static struct ima_template_desc builtin_templates[] = {
 
 static LIST_HEAD(defined_templates);
 static DEFINE_SPINLOCK(template_list);
+static int template_setup_done;
 
 static const struct ima_template_field supported_fields[] = {
 	{.field_id = "d", .field_init = ima_eventdigest_init,
@@ -80,10 +81,11 @@ static int __init ima_template_setup(char *str)
 	struct ima_template_desc *template_desc;
 	int template_len = strlen(str);
 
-	if (ima_template)
+	if (template_setup_done)
 		return 1;
 
-	ima_init_template_list();
+	if (!ima_template)
+		ima_init_template_list();
 
 	/*
 	 * Verify that a template with the supplied name exists.
@@ -107,6 +109,7 @@ static int __init ima_template_setup(char *str)
 	}
 
 	ima_template = template_desc;
+	template_setup_done = 1;
 	return 1;
 }
 __setup("ima_template=", ima_template_setup);
@@ -115,7 +118,7 @@ static int __init ima_template_fmt_setup(char *str)
 {
 	int num_templates = ARRAY_SIZE(builtin_templates);
 
-	if (ima_template)
+	if (template_setup_done)
 		return 1;
 
 	if (template_desc_init_fields(str, NULL, NULL) < 0) {
@@ -126,6 +129,7 @@ static int __init ima_template_fmt_setup(char *str)
 
 	builtin_templates[num_templates - 1].fmt = str;
 	ima_template = builtin_templates + num_templates - 1;
+	template_setup_done = 1;
 
 	return 1;
 }
-- 
GitLab


From 8027ba480c00d56b7dcedc8f2810c6a749ed907a Mon Sep 17 00:00:00 2001
From: Stefan Berger <stefanb@linux.ibm.com>
Date: Tue, 1 Feb 2022 15:37:10 -0500
Subject: [PATCH 3844/4878] ima: Do not print policy rule with inactive LSM
 labels

commit 89677197ae709eb1ab3646952c44f6a171c9e74c upstream.

Before printing a policy rule scan for inactive LSM labels in the policy
rule. Inactive LSM labels are identified by args_p != NULL and
rule == NULL.

Fixes: 483ec26eed42 ("ima: ima/lsm policy rule loading logic bug fixes")
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Cc: <stable@vger.kernel.org> # v5.6+
Acked-by: Christian Brauner <brauner@kernel.org>
[zohar@linux.ibm.com: Updated "Fixes" tag]
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/integrity/ima/ima_policy.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 9b5adeaa47fc8..e737c216efc49 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -1636,6 +1636,14 @@ int ima_policy_show(struct seq_file *m, void *v)
 
 	rcu_read_lock();
 
+	/* Do not print rules with inactive LSM labels */
+	for (i = 0; i < MAX_LSM_RULES; i++) {
+		if (entry->lsm[i].args_p && !entry->lsm[i].rule) {
+			rcu_read_unlock();
+			return 0;
+		}
+	}
+
 	if (entry->action & MEASURE)
 		seq_puts(m, pt(Opt_measure));
 	if (entry->action & DONT_MEASURE)
-- 
GitLab


From c9cc027c55bb2d95dd14061d7a7175d497c929b7 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Wed, 12 Jan 2022 16:31:56 +0800
Subject: [PATCH 3845/4878] mmc: sdhci-of-esdhc: Check for error num after
 setting mask

commit 40c67c291a93f8846c4a972c9ef1b7ba4544c8d0 upstream.

Because of the possible failure of the dma_supported(), the
dma_set_mask_and_coherent() may return error num.
Therefore, it should be better to check it and return the error if
fails.
And since the sdhci_setup_host() has already checked the return value of
the enable_dma, we need not check it in sdhci_resume_host() again.

Fixes: 5552d7ad596c ("mmc: sdhci-of-esdhc: set proper dma mask for ls104x chips")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220112083156.1124782-1-jiasheng@iscas.ac.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/sdhci-of-esdhc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index ab5ab969f711d..343648fcbc31f 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -524,12 +524,16 @@ static void esdhc_of_adma_workaround(struct sdhci_host *host, u32 intmask)
 
 static int esdhc_of_enable_dma(struct sdhci_host *host)
 {
+	int ret;
 	u32 value;
 	struct device *dev = mmc_dev(host->mmc);
 
 	if (of_device_is_compatible(dev->of_node, "fsl,ls1043a-esdhc") ||
-	    of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc"))
-		dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+	    of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc")) {
+		ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+		if (ret)
+			return ret;
+	}
 
 	value = sdhci_readl(host, ESDHC_DMA_SYSCTL);
 
-- 
GitLab


From 7b53d2204ce79b27a878074a77d64f40ec21dbca Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Tue, 8 Feb 2022 21:00:26 +0100
Subject: [PATCH 3846/4878] can: isotp: fix potential CAN frame reception race
 in isotp_rcv()

commit 7c759040c1dd03954f650f147ae7175476d51314 upstream.

When receiving a CAN frame the current code logic does not consider
concurrently receiving processes which do not show up in real world
usage.

Ziyang Xuan writes:

The following syz problem is one of the scenarios. so->rx.len is
changed by isotp_rcv_ff() during isotp_rcv_cf(), so->rx.len equals
0 before alloc_skb() and equals 4096 after alloc_skb(). That will
trigger skb_over_panic() in skb_put().

=======================================================
CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.16.0-rc8-syzkaller #0
RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113
Call Trace:
 <TASK>
 skb_over_panic net/core/skbuff.c:118 [inline]
 skb_put.cold+0x24/0x24 net/core/skbuff.c:1990
 isotp_rcv_cf net/can/isotp.c:570 [inline]
 isotp_rcv+0xa38/0x1e30 net/can/isotp.c:668
 deliver net/can/af_can.c:574 [inline]
 can_rcv_filter+0x445/0x8d0 net/can/af_can.c:635
 can_receive+0x31d/0x580 net/can/af_can.c:665
 can_rcv+0x120/0x1c0 net/can/af_can.c:696
 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5465
 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5579

Therefore we make sure the state changes and data structures stay
consistent at CAN frame reception time by adding a spin_lock in
isotp_rcv(). This fixes the issue reported by syzkaller but does not
affect real world operation.

Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Link: https://lore.kernel.org/linux-can/d7e69278-d741-c706-65e1-e87623d9a8e8@huawei.com/T/
Link: https://lore.kernel.org/all/20220208200026.13783-1-socketcan@hartkopp.net
Cc: stable@vger.kernel.org
Reported-by: syzbot+4c63f36709a642f801c5@syzkaller.appspotmail.com
Reported-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 53ce5b6448a5d..f348fbb2e7dd4 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -56,6 +56,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/spinlock.h>
 #include <linux/hrtimer.h>
 #include <linux/wait.h>
 #include <linux/uio.h>
@@ -145,6 +146,7 @@ struct isotp_sock {
 	struct tpcon rx, tx;
 	struct list_head notifier;
 	wait_queue_head_t wait;
+	spinlock_t rx_lock; /* protect single thread state machine */
 };
 
 static LIST_HEAD(isotp_notifier_list);
@@ -615,11 +617,17 @@ static void isotp_rcv(struct sk_buff *skb, void *data)
 
 	n_pci_type = cf->data[ae] & 0xF0;
 
+	/* Make sure the state changes and data structures stay consistent at
+	 * CAN frame reception time. This locking is not needed in real world
+	 * use cases but the inconsistency can be triggered with syzkaller.
+	 */
+	spin_lock(&so->rx_lock);
+
 	if (so->opt.flags & CAN_ISOTP_HALF_DUPLEX) {
 		/* check rx/tx path half duplex expectations */
 		if ((so->tx.state != ISOTP_IDLE && n_pci_type != N_PCI_FC) ||
 		    (so->rx.state != ISOTP_IDLE && n_pci_type == N_PCI_FC))
-			return;
+			goto out_unlock;
 	}
 
 	switch (n_pci_type) {
@@ -668,6 +676,9 @@ static void isotp_rcv(struct sk_buff *skb, void *data)
 		isotp_rcv_cf(sk, cf, ae, skb);
 		break;
 	}
+
+out_unlock:
+	spin_unlock(&so->rx_lock);
 }
 
 static void isotp_fill_dataframe(struct canfd_frame *cf, struct isotp_sock *so,
@@ -1407,6 +1418,7 @@ static int isotp_init(struct sock *sk)
 	so->txtimer.function = isotp_tx_timer_handler;
 
 	init_waitqueue_head(&so->wait);
+	spin_lock_init(&so->rx_lock);
 
 	spin_lock(&isotp_notifier_lock);
 	list_add_tail(&so->notifier, &isotp_notifier_list);
-- 
GitLab


From 6a33aa711327e907349ead5a2ce9e476f1eae329 Mon Sep 17 00:00:00 2001
From: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
Date: Sat, 5 Feb 2022 23:39:32 +0300
Subject: [PATCH 3847/4878] net: phy: marvell: Fix RGMII Tx/Rx delays setting
 in 88e1121-compatible PHYs

commit fe4f57bf7b585dca58f1496c4e2481ecbae18126 upstream.

It is mandatory for a software to issue a reset upon modifying RGMII
Receive Timing Control and RGMII Transmit Timing Control bit fields of MAC
Specific Control register 2 (page 2, register 21) otherwise the changes
won't be perceived by the PHY (the same is applicable for a lot of other
registers). Not setting the RGMII delays on the platforms that imply it'
being done on the PHY side will consequently cause the traffic loss. We
discovered that the denoted soft-reset is missing in the
m88e1121_config_aneg() method for the case if the RGMII delays are
modified but the MDIx polarity isn't changed or the auto-negotiation is
left enabled, thus causing the traffic loss on our platform with Marvell
Alaska 88E1510 installed. Let's fix that by issuing the soft-reset if the
delays have been actually set in the m88e1121_config_aneg_rgmii_delays()
method.

Cc: stable@vger.kernel.org
Fixes: d6ab93364734 ("net: phy: marvell: Avoid unnecessary soft reset")
Signed-off-by: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/r/20220205203932.26899-1-Pavel.Parkhomenko@baikalelectronics.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/marvell.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 4dda2ab19c265..568e287642991 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -515,9 +515,9 @@ static int m88e1121_config_aneg_rgmii_delays(struct phy_device *phydev)
 	else
 		mscr = 0;
 
-	return phy_modify_paged(phydev, MII_MARVELL_MSCR_PAGE,
-				MII_88E1121_PHY_MSCR_REG,
-				MII_88E1121_PHY_MSCR_DELAY_MASK, mscr);
+	return phy_modify_paged_changed(phydev, MII_MARVELL_MSCR_PAGE,
+					MII_88E1121_PHY_MSCR_REG,
+					MII_88E1121_PHY_MSCR_DELAY_MASK, mscr);
 }
 
 static int m88e1121_config_aneg(struct phy_device *phydev)
@@ -531,11 +531,13 @@ static int m88e1121_config_aneg(struct phy_device *phydev)
 			return err;
 	}
 
+	changed = err;
+
 	err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
 	if (err < 0)
 		return err;
 
-	changed = err;
+	changed |= err;
 
 	err = genphy_config_aneg(phydev);
 	if (err < 0)
-- 
GitLab


From f47ee3a35ffb5a8534959ec82c7a0dda3f0d3249 Mon Sep 17 00:00:00 2001
From: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
Date: Sun, 6 Feb 2022 00:49:51 +0300
Subject: [PATCH 3848/4878] net: phy: marvell: Fix MDI-x polarity setting in
 88e1118-compatible PHYs

commit aec12836e7196e4d360b2cbf20cf7aa5139ad2ec upstream.

When setting up autonegotiation for 88E1118R and compatible PHYs,
a software reset of PHY is issued before setting up polarity.
This is incorrect as changes of MDI Crossover Mode bits are
disruptive to the normal operation and must be followed by a
software reset to take effect. Let's patch m88e1118_config_aneg()
to fix the issue mentioned before by invoking software reset
of the PHY just after setting up MDI-x polarity.

Fixes: 605f196efbf8 ("phy: Add support for Marvell 88E1118 PHY")
Signed-off-by: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Cc: stable@vger.kernel.org
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/marvell.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 568e287642991..cb9d1852a75c8 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1061,16 +1061,15 @@ static int m88e1118_config_aneg(struct phy_device *phydev)
 {
 	int err;
 
-	err = genphy_soft_reset(phydev);
+	err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
 	if (err < 0)
 		return err;
 
-	err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
+	err = genphy_config_aneg(phydev);
 	if (err < 0)
 		return err;
 
-	err = genphy_config_aneg(phydev);
-	return 0;
+	return genphy_soft_reset(phydev);
 }
 
 static int m88e1118_config_init(struct phy_device *phydev)
-- 
GitLab


From c72f7c2ec3d4d53a15de0282c64e1235b12c95eb Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Wed, 2 Feb 2022 18:52:01 -0500
Subject: [PATCH 3849/4878] NFS: Fix initialisation of nfs_client cl_flags
 field

commit 468d126dab45718feeb728319be20bd869a5eaa7 upstream.

For some long forgotten reason, the nfs_client cl_flags field is
initialised in nfs_get_client() instead of being initialised at
allocation time. This quirk was harmless until we moved the call to
nfs_create_rpc_client().

Fixes: dd99e9f98fbf ("NFSv4: Initialise connection to the server in nfs4_alloc_client()")
Cc: stable@vger.kernel.org # 4.8.x
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/client.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 723d425796cca..818ff8b1b99da 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -177,6 +177,7 @@ struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
 	INIT_LIST_HEAD(&clp->cl_superblocks);
 	clp->cl_rpcclient = ERR_PTR(-EINVAL);
 
+	clp->cl_flags = cl_init->init_flags;
 	clp->cl_proto = cl_init->proto;
 	clp->cl_nconnect = cl_init->nconnect;
 	clp->cl_net = get_net(cl_init->net);
@@ -426,7 +427,6 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init)
 			list_add_tail(&new->cl_share_link,
 					&nn->nfs_client_list);
 			spin_unlock(&nn->nfs_client_lock);
-			new->cl_flags = cl_init->init_flags;
 			return rpc_ops->init_client(new, cl_init);
 		}
 
-- 
GitLab


From 3a6a2d43e32a363a23e8ef60d57187aefaeef377 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 25 Jan 2022 16:36:22 -0500
Subject: [PATCH 3850/4878] NFSD: Clamp WRITE offsets

commit 6260d9a56ab352b54891ec66ab0eced57d55abc6 upstream.

Ensure that a client cannot specify a WRITE range that falls in a
byte range outside what the kernel's internal types (such as loff_t,
which is signed) can represent. The kiocb iterators, invoked in
nfsd_vfs_write(), should properly limit write operations to within
the underlying file system's s_maxbytes.

Cc: stable@vger.kernel.org
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs3proc.c | 5 +++++
 fs/nfsd/nfs4proc.c | 5 +++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index a633044b0dc1f..981a4e4c9a3cf 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -183,6 +183,11 @@ nfsd3_proc_write(struct svc_rqst *rqstp)
 				(unsigned long long) argp->offset,
 				argp->stable? " stable" : "");
 
+	resp->status = nfserr_fbig;
+	if (argp->offset > (u64)OFFSET_MAX ||
+	    argp->offset + argp->len > (u64)OFFSET_MAX)
+		return rpc_success;
+
 	fh_copy(&resp->fh, &argp->fh);
 	resp->committed = argp->stable;
 	nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages,
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 00440337efc1f..7850d141c7621 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1008,8 +1008,9 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	unsigned long cnt;
 	int nvecs;
 
-	if (write->wr_offset >= OFFSET_MAX)
-		return nfserr_inval;
+	if (write->wr_offset > (u64)OFFSET_MAX ||
+	    write->wr_offset + write->wr_buflen > (u64)OFFSET_MAX)
+		return nfserr_fbig;
 
 	cnt = write->wr_buflen;
 	trace_nfsd_write_start(rqstp, &cstate->current_fh,
-- 
GitLab


From 6215fb4558938695a63bb3e270ba6c0df9767409 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Fri, 4 Feb 2022 17:05:24 -0500
Subject: [PATCH 3851/4878] NFSD: Fix offset type in I/O trace points

commit 6a4d333d540041d244b2fca29b8417bfde20af81 upstream.

NFSv3 and NFSv4 use u64 offset values on the wire. Record these values
verbatim without the implicit type case to loff_t.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/trace.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index c8ca73d69ad04..a952f4a9b2a68 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -175,14 +175,14 @@ TRACE_EVENT(nfsd_export_update,
 DECLARE_EVENT_CLASS(nfsd_io_class,
 	TP_PROTO(struct svc_rqst *rqstp,
 		 struct svc_fh	*fhp,
-		 loff_t		offset,
-		 unsigned long	len),
+		 u64		offset,
+		 u32		len),
 	TP_ARGS(rqstp, fhp, offset, len),
 	TP_STRUCT__entry(
 		__field(u32, xid)
 		__field(u32, fh_hash)
-		__field(loff_t, offset)
-		__field(unsigned long, len)
+		__field(u64, offset)
+		__field(u32, len)
 	),
 	TP_fast_assign(
 		__entry->xid = be32_to_cpu(rqstp->rq_xid);
@@ -190,7 +190,7 @@ DECLARE_EVENT_CLASS(nfsd_io_class,
 		__entry->offset = offset;
 		__entry->len = len;
 	),
-	TP_printk("xid=0x%08x fh_hash=0x%08x offset=%lld len=%lu",
+	TP_printk("xid=0x%08x fh_hash=0x%08x offset=%llu len=%u",
 		  __entry->xid, __entry->fh_hash,
 		  __entry->offset, __entry->len)
 )
@@ -199,8 +199,8 @@ DECLARE_EVENT_CLASS(nfsd_io_class,
 DEFINE_EVENT(nfsd_io_class, nfsd_##name,	\
 	TP_PROTO(struct svc_rqst *rqstp,	\
 		 struct svc_fh	*fhp,		\
-		 loff_t		offset,		\
-		 unsigned long	len),		\
+		 u64		offset,		\
+		 u32		len),		\
 	TP_ARGS(rqstp, fhp, offset, len))
 
 DEFINE_NFSD_IO_EVENT(read_start);
-- 
GitLab


From 5234de6c797565815ece9321b1dfe2e6732b5090 Mon Sep 17 00:00:00 2001
From: Huacai Chen <chenhc@lemote.com>
Date: Tue, 30 Mar 2021 23:33:33 +0800
Subject: [PATCH 3852/4878] drm/amdgpu: Set a suitable dev_info.gart_page_size
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit f4d3da72a76a9ce5f57bba64788931686a9dc333 upstream.

In Mesa, dev_info.gart_page_size is used for alignment and it was
set to AMDGPU_GPU_PAGE_SIZE(4KB). However, the page table of AMDGPU
driver requires an alignment on CPU pages.  So, for non-4KB page system,
gart_page_size should be max_t(u32, PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE).

Signed-off-by: Rui Wang <wangr@lemote.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Link: https://github.com/loongson-community/linux-stable/commit/caa9c0a1
[Xi: rebased for drm-next, use max_t for checkpatch,
     and reworded commit message.]
Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang>
BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1549
Tested-by: Dan Horák <dan@danny.cz>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Salvatore Bonaccorso: Backport to 5.10.y which does not contain
a5a52a43eac0 ("drm/amd/amdgpu/amdgpu_kms: Remove 'struct
drm_amdgpu_info_device dev_info' from the stack") which removes dev_info
from the stack and places it on the heap.]
Tested-by: Timothy Pearson <tpearson@raptorengineering.com>
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index efda38349a032..917b94002f4b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -766,9 +766,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
 			dev_info.high_va_offset = AMDGPU_GMC_HOLE_END;
 			dev_info.high_va_max = AMDGPU_GMC_HOLE_END | vm_size;
 		}
-		dev_info.virtual_address_alignment = max((int)PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
+		dev_info.virtual_address_alignment = max_t(u32, PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
 		dev_info.pte_fragment_size = (1 << adev->vm_manager.fragment_size) * AMDGPU_GPU_PAGE_SIZE;
-		dev_info.gart_page_size = AMDGPU_GPU_PAGE_SIZE;
+		dev_info.gart_page_size = max_t(u32, PAGE_SIZE, AMDGPU_GPU_PAGE_SIZE);
 		dev_info.cu_active_number = adev->gfx.cu_info.number;
 		dev_info.cu_ao_mask = adev->gfx.cu_info.ao_cu_mask;
 		dev_info.ce_ram_size = adev->gfx.ce_ram_size;
-- 
GitLab


From b4e0c9bcf142936f9fe43710587d4765152d8139 Mon Sep 17 00:00:00 2001
From: Tom Zanussi <zanussi@kernel.org>
Date: Thu, 27 Jan 2022 15:44:17 -0600
Subject: [PATCH 3853/4878] tracing: Propagate is_signed to expression

commit 097f1eefedeab528cecbd35586dfe293853ffb17 upstream.

During expression parsing, a new expression field is created which
should inherit the properties of the operands, such as size and
is_signed.

is_signed propagation was missing, causing spurious errors with signed
operands.  Add it in parse_expr() and parse_unary() to fix the problem.

Link: https://lkml.kernel.org/r/f4dac08742fd7a0920bf80a73c6c44042f5eaa40.1643319703.git.zanussi@kernel.org

Cc: stable@vger.kernel.org
Fixes: 100719dcef447 ("tracing: Add simple expression support to hist triggers")
Reported-by: Yordan Karadzhov <ykaradzhov@vmware.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215513
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
[sudip: adjust context]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events_hist.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 1557a20b6500e..41a9bd52e1fdc 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -2154,6 +2154,8 @@ static struct hist_field *parse_unary(struct hist_trigger_data *hist_data,
 		(HIST_FIELD_FL_TIMESTAMP | HIST_FIELD_FL_TIMESTAMP_USECS);
 	expr->fn = hist_field_unary_minus;
 	expr->operands[0] = operand1;
+	expr->size = operand1->size;
+	expr->is_signed = operand1->is_signed;
 	expr->operator = FIELD_OP_UNARY_MINUS;
 	expr->name = expr_str(expr, 0);
 	expr->type = kstrdup(operand1->type, GFP_KERNEL);
@@ -2293,6 +2295,7 @@ static struct hist_field *parse_expr(struct hist_trigger_data *hist_data,
 
 	/* The operand sizes should be the same, so just pick one */
 	expr->size = operand1->size;
+	expr->is_signed = operand1->is_signed;
 
 	expr->operator = field_op;
 	expr->name = expr_str(expr, 0);
-- 
GitLab


From e2b4435fd340f95a1424081bff52f25c1eb8ca99 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Tue, 28 Sep 2021 09:47:57 +1000
Subject: [PATCH 3854/4878] NFS: change nfs_access_get_cached to only report
 the mask

[ Upstream commit b5e7b59c3480f355910f9d2c6ece5857922a5e54 ]

Currently the nfs_access_get_cached family of functions report a
'struct nfs_access_entry' as the result, with both .mask and .cred set.
However the .cred is never used.  This is probably good and there is no
guarantee that it won't be freed before use.

Change to only report the 'mask' - as this is all that is used or needed.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/dir.c           | 20 +++++++++-----------
 fs/nfs/nfs4proc.c      | 18 +++++++++---------
 include/linux/nfs_fs.h |  4 ++--
 3 files changed, 20 insertions(+), 22 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index a23b7a5dec9ee..682c7b45d8b71 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -2489,7 +2489,7 @@ static struct nfs_access_entry *nfs_access_search_rbtree(struct inode *inode, co
 	return NULL;
 }
 
-static int nfs_access_get_cached_locked(struct inode *inode, const struct cred *cred, struct nfs_access_entry *res, bool may_block)
+static int nfs_access_get_cached_locked(struct inode *inode, const struct cred *cred, u32 *mask, bool may_block)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
 	struct nfs_access_entry *cache;
@@ -2519,8 +2519,7 @@ static int nfs_access_get_cached_locked(struct inode *inode, const struct cred *
 		spin_lock(&inode->i_lock);
 		retry = false;
 	}
-	res->cred = cache->cred;
-	res->mask = cache->mask;
+	*mask = cache->mask;
 	list_move_tail(&cache->lru, &nfsi->access_cache_entry_lru);
 	err = 0;
 out:
@@ -2532,7 +2531,7 @@ out_zap:
 	return -ENOENT;
 }
 
-static int nfs_access_get_cached_rcu(struct inode *inode, const struct cred *cred, struct nfs_access_entry *res)
+static int nfs_access_get_cached_rcu(struct inode *inode, const struct cred *cred, u32 *mask)
 {
 	/* Only check the most recently returned cache entry,
 	 * but do it without locking.
@@ -2554,22 +2553,21 @@ static int nfs_access_get_cached_rcu(struct inode *inode, const struct cred *cre
 		goto out;
 	if (nfs_check_cache_invalid(inode, NFS_INO_INVALID_ACCESS))
 		goto out;
-	res->cred = cache->cred;
-	res->mask = cache->mask;
+	*mask = cache->mask;
 	err = 0;
 out:
 	rcu_read_unlock();
 	return err;
 }
 
-int nfs_access_get_cached(struct inode *inode, const struct cred *cred, struct
-nfs_access_entry *res, bool may_block)
+int nfs_access_get_cached(struct inode *inode, const struct cred *cred,
+			  u32 *mask, bool may_block)
 {
 	int status;
 
-	status = nfs_access_get_cached_rcu(inode, cred, res);
+	status = nfs_access_get_cached_rcu(inode, cred, mask);
 	if (status != 0)
-		status = nfs_access_get_cached_locked(inode, cred, res,
+		status = nfs_access_get_cached_locked(inode, cred, mask,
 		    may_block);
 
 	return status;
@@ -2690,7 +2688,7 @@ static int nfs_do_access(struct inode *inode, const struct cred *cred, int mask)
 
 	trace_nfs_access_enter(inode);
 
-	status = nfs_access_get_cached(inode, cred, &cache, may_block);
+	status = nfs_access_get_cached(inode, cred, &cache.mask, may_block);
 	if (status == 0)
 		goto out_cached;
 
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3106bd28b1132..d222a980164b7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7597,7 +7597,7 @@ static int nfs4_xattr_set_nfs4_user(const struct xattr_handler *handler,
 				    const char *key, const void *buf,
 				    size_t buflen, int flags)
 {
-	struct nfs_access_entry cache;
+	u32 mask;
 	int ret;
 
 	if (!nfs_server_capable(inode, NFS_CAP_XATTR))
@@ -7612,8 +7612,8 @@ static int nfs4_xattr_set_nfs4_user(const struct xattr_handler *handler,
 	 * do a cached access check for the XA* flags to possibly avoid
 	 * doing an RPC and getting EACCES back.
 	 */
-	if (!nfs_access_get_cached(inode, current_cred(), &cache, true)) {
-		if (!(cache.mask & NFS_ACCESS_XAWRITE))
+	if (!nfs_access_get_cached(inode, current_cred(), &mask, true)) {
+		if (!(mask & NFS_ACCESS_XAWRITE))
 			return -EACCES;
 	}
 
@@ -7634,14 +7634,14 @@ static int nfs4_xattr_get_nfs4_user(const struct xattr_handler *handler,
 				    struct dentry *unused, struct inode *inode,
 				    const char *key, void *buf, size_t buflen)
 {
-	struct nfs_access_entry cache;
+	u32 mask;
 	ssize_t ret;
 
 	if (!nfs_server_capable(inode, NFS_CAP_XATTR))
 		return -EOPNOTSUPP;
 
-	if (!nfs_access_get_cached(inode, current_cred(), &cache, true)) {
-		if (!(cache.mask & NFS_ACCESS_XAREAD))
+	if (!nfs_access_get_cached(inode, current_cred(), &mask, true)) {
+		if (!(mask & NFS_ACCESS_XAREAD))
 			return -EACCES;
 	}
 
@@ -7666,13 +7666,13 @@ nfs4_listxattr_nfs4_user(struct inode *inode, char *list, size_t list_len)
 	ssize_t ret, size;
 	char *buf;
 	size_t buflen;
-	struct nfs_access_entry cache;
+	u32 mask;
 
 	if (!nfs_server_capable(inode, NFS_CAP_XATTR))
 		return 0;
 
-	if (!nfs_access_get_cached(inode, current_cred(), &cache, true)) {
-		if (!(cache.mask & NFS_ACCESS_XALIST))
+	if (!nfs_access_get_cached(inode, current_cred(), &mask, true)) {
+		if (!(mask & NFS_ACCESS_XALIST))
 			return 0;
 	}
 
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index aff5cd382fef5..1e0a3497bdb46 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -501,8 +501,8 @@ extern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh,
 			struct nfs_fattr *fattr, struct nfs4_label *label);
 extern int nfs_may_open(struct inode *inode, const struct cred *cred, int openflags);
 extern void nfs_access_zap_cache(struct inode *inode);
-extern int nfs_access_get_cached(struct inode *inode, const struct cred *cred, struct nfs_access_entry *res,
-				 bool may_block);
+extern int nfs_access_get_cached(struct inode *inode, const struct cred *cred,
+				 u32 *mask, bool may_block);
 
 /*
  * linux/fs/nfs/symlink.c
-- 
GitLab


From db053bdece3aa812d4da8c3aa2f15560618b9cc4 Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <kolga@netapp.com>
Date: Mon, 29 Nov 2021 15:33:56 -0500
Subject: [PATCH 3855/4878] NFSv4 only print the label when its queried

[ Upstream commit 2c52c8376db7160a1dd8a681c61c9258405ef143 ]

When the bitmask of the attributes doesn't include the security label,
don't bother printing it. Since the label might not be null terminated,
adjust the printing format accordingly.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4xdr.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index c16b93df1bc14..9f8bd45379e72 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -4184,10 +4184,11 @@ static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap,
 		} else
 			printk(KERN_WARNING "%s: label too long (%u)!\n",
 					__func__, len);
+		if (label && label->label)
+			dprintk("%s: label=%.*s, len=%d, PI=%d, LFS=%d\n",
+				__func__, label->len, (char *)label->label,
+				label->len, label->pi, label->lfs);
 	}
-	if (label && label->label)
-		dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__,
-			(char *)label->label, label->len, label->pi, label->lfs);
 	return status;
 }
 
-- 
GitLab


From c5619c510f04d7ceaa0136cd5fab9960c3d23b65 Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@foxmail.com>
Date: Fri, 17 Dec 2021 01:01:33 +0800
Subject: [PATCH 3856/4878] nfs: nfs4clinet: check the return value of
 kstrdup()

[ Upstream commit fbd2057e5329d3502a27491190237b6be52a1cb6 ]

kstrdup() returns NULL when some internal memory errors happen, it is
better to check the return value of it so to catch the memory error in
time.

Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4client.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 6d74f2e2de461..0e6437b08a3a5 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1330,8 +1330,11 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
 	}
 	nfs_put_client(clp);
 
-	if (server->nfs_client->cl_hostname == NULL)
+	if (server->nfs_client->cl_hostname == NULL) {
 		server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);
+		if (server->nfs_client->cl_hostname == NULL)
+			return -ENOMEM;
+	}
 	nfs_server_insert_lists(server);
 
 	return nfs_probe_destination(server);
-- 
GitLab


From 1c79aad1186b8a1e70e6fc64dccd4939fc0fbcca Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Mon, 3 Jan 2022 14:50:16 -0500
Subject: [PATCH 3857/4878] NFSv4.1: Fix uninitialised variable in devicenotify

[ Upstream commit b05bf5c63b326ce1da84ef42498d8e0e292e694c ]

When decode_devicenotify_args() exits with no entries, we need to
ensure that the struct cb_devicenotifyargs is initialised to
{ 0, NULL } in order to avoid problems in
nfs4_callback_devicenotify().

Reported-by: <rtm@csail.mit.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/callback.h      |  2 +-
 fs/nfs/callback_proc.c |  2 +-
 fs/nfs/callback_xdr.c  | 18 +++++++++---------
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 6a2033131c068..ccd4f245cae24 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -170,7 +170,7 @@ struct cb_devicenotifyitem {
 };
 
 struct cb_devicenotifyargs {
-	int				 ndevs;
+	uint32_t			 ndevs;
 	struct cb_devicenotifyitem	 *devs;
 };
 
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index be546ece383f5..b44219ce60b86 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -353,7 +353,7 @@ __be32 nfs4_callback_devicenotify(void *argp, void *resp,
 				  struct cb_process_state *cps)
 {
 	struct cb_devicenotifyargs *args = argp;
-	int i;
+	uint32_t i;
 	__be32 res = 0;
 	struct nfs_client *clp = cps->clp;
 	struct nfs_server *server = NULL;
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 79ff172eb1c81..1725079a05276 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -259,11 +259,9 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
 				void *argp)
 {
 	struct cb_devicenotifyargs *args = argp;
+	uint32_t tmp, n, i;
 	__be32 *p;
 	__be32 status = 0;
-	u32 tmp;
-	int n, i;
-	args->ndevs = 0;
 
 	/* Num of device notifications */
 	p = xdr_inline_decode(xdr, sizeof(uint32_t));
@@ -272,7 +270,7 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
 		goto out;
 	}
 	n = ntohl(*p++);
-	if (n <= 0)
+	if (n == 0)
 		goto out;
 	if (n > ULONG_MAX / sizeof(*args->devs)) {
 		status = htonl(NFS4ERR_BADXDR);
@@ -331,19 +329,21 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
 			dev->cbd_immediate = 0;
 		}
 
-		args->ndevs++;
-
 		dprintk("%s: type %d layout 0x%x immediate %d\n",
 			__func__, dev->cbd_notify_type, dev->cbd_layout_type,
 			dev->cbd_immediate);
 	}
+	args->ndevs = n;
+	dprintk("%s: ndevs %d\n", __func__, args->ndevs);
+	return 0;
+err:
+	kfree(args->devs);
 out:
+	args->devs = NULL;
+	args->ndevs = 0;
 	dprintk("%s: status %d ndevs %d\n",
 		__func__, ntohl(status), args->ndevs);
 	return status;
-err:
-	kfree(args->devs);
-	goto out;
 }
 
 static __be32 decode_sessionid(struct xdr_stream *xdr,
-- 
GitLab


From 5a9c613a29e7ef8e64ede59e89dee9f1d87617ab Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <kolga@netapp.com>
Date: Thu, 9 Dec 2021 14:53:29 -0500
Subject: [PATCH 3858/4878] NFSv4 remove zero number of fs_locations entries
 error check

[ Upstream commit 90e12a3191040bd3854d3e236c35921e4e92a044 ]

Remove the check for the zero length fs_locations reply in the
xdr decoding, and instead check for that in the migration code.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4state.c | 3 +++
 fs/nfs/nfs4xdr.c   | 2 --
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 4bf10792cb5b1..cbeec29e9f21a 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2104,6 +2104,9 @@ static int nfs4_try_migration(struct nfs_server *server, const struct cred *cred
 	}
 
 	result = -NFS4ERR_NXIO;
+	if (!locations->nlocations)
+		goto out;
+
 	if (!(locations->fattr.valid & NFS_ATTR_FATTR_V4_LOCATIONS)) {
 		dprintk("<-- %s: No fs_locations data, migration skipped\n",
 			__func__);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 9f8bd45379e72..e2f0e3446e22a 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3680,8 +3680,6 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
 	if (unlikely(!p))
 		goto out_eio;
 	n = be32_to_cpup(p);
-	if (n <= 0)
-		goto out_eio;
 	for (res->nlocations = 0; res->nlocations < n; res->nlocations++) {
 		u32 m;
 		struct nfs4_fs_location *loc;
-- 
GitLab


From 6f2974b52b15a09cf3fbeb353ccdf2a2b737ca76 Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <kolga@netapp.com>
Date: Thu, 9 Dec 2021 14:53:32 -0500
Subject: [PATCH 3859/4878] NFSv4 expose nfs_parse_server_name function

[ Upstream commit f5b27cc6761e27ee6387a24df1a99ca77b360fea ]

Make nfs_parse_server_name available outside of nfs4namespace.c.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4_fs.h       | 3 ++-
 fs/nfs/nfs4namespace.c | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 3e344bec3647b..de71cf89a24ee 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -281,7 +281,8 @@ struct rpc_clnt *nfs4_negotiate_security(struct rpc_clnt *, struct inode *,
 int nfs4_submount(struct fs_context *, struct nfs_server *);
 int nfs4_replace_transport(struct nfs_server *server,
 				const struct nfs4_fs_locations *locations);
-
+size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
+			     size_t salen, struct net *net);
 /* nfs4proc.c */
 extern int nfs4_handle_exception(struct nfs_server *, int, struct nfs4_exception *);
 extern int nfs4_async_handle_error(struct rpc_task *task,
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 873342308dc0d..f1ed4f60a7f33 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -164,8 +164,8 @@ static int nfs4_validate_fspath(struct dentry *dentry,
 	return 0;
 }
 
-static size_t nfs_parse_server_name(char *string, size_t len,
-		struct sockaddr *sa, size_t salen, struct net *net)
+size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
+			     size_t salen, struct net *net)
 {
 	ssize_t ret;
 
-- 
GitLab


From b37dd03f2fc6fa44ea19b0f273db97f00dc2e8d1 Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <kolga@netapp.com>
Date: Thu, 9 Dec 2021 14:53:33 -0500
Subject: [PATCH 3860/4878] NFSv4 handle port presence in fs_location server
 string

[ Upstream commit a8d54baba7c65db2d3278873def61f8d3753d766 ]

An fs_location attribute returns a string that can be ipv4, ipv6,
or DNS name. An ip location can have a port appended to it and if
no port is present a default port needs to be set. If rpc_pton()
fails to parse, try calling rpc_uaddr2socaddr() that can convert
an universal address.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4_fs.h       |  2 +-
 fs/nfs/nfs4namespace.c | 17 +++++++++++------
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index de71cf89a24ee..6d916563356ef 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -282,7 +282,7 @@ int nfs4_submount(struct fs_context *, struct nfs_server *);
 int nfs4_replace_transport(struct nfs_server *server,
 				const struct nfs4_fs_locations *locations);
 size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
-			     size_t salen, struct net *net);
+			     size_t salen, struct net *net, int port);
 /* nfs4proc.c */
 extern int nfs4_handle_exception(struct nfs_server *, int, struct nfs4_exception *);
 extern int nfs4_async_handle_error(struct rpc_task *task,
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index f1ed4f60a7f33..3680c8da510c9 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -165,15 +165,20 @@ static int nfs4_validate_fspath(struct dentry *dentry,
 }
 
 size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
-			     size_t salen, struct net *net)
+			     size_t salen, struct net *net, int port)
 {
 	ssize_t ret;
 
 	ret = rpc_pton(net, string, len, sa, salen);
 	if (ret == 0) {
-		ret = nfs_dns_resolve_name(net, string, len, sa, salen);
-		if (ret < 0)
-			ret = 0;
+		ret = rpc_uaddr2sockaddr(net, string, len, sa, salen);
+		if (ret == 0) {
+			ret = nfs_dns_resolve_name(net, string, len, sa, salen);
+			if (ret < 0)
+				ret = 0;
+		}
+	} else if (port) {
+		rpc_set_port(sa, port);
 	}
 	return ret;
 }
@@ -328,7 +333,7 @@ static int try_location(struct fs_context *fc,
 			nfs_parse_server_name(buf->data, buf->len,
 					      &ctx->nfs_server.address,
 					      sizeof(ctx->nfs_server._address),
-					      fc->net_ns);
+					      fc->net_ns, 0);
 		if (ctx->nfs_server.addrlen == 0)
 			continue;
 
@@ -496,7 +501,7 @@ static int nfs4_try_replacing_one_location(struct nfs_server *server,
 			continue;
 
 		salen = nfs_parse_server_name(buf->data, buf->len,
-						sap, addr_bufsize, net);
+						sap, addr_bufsize, net, 0);
 		if (salen == 0)
 			continue;
 		rpc_set_port(sap, NFS_PORT);
-- 
GitLab


From 0d6b9d15ecb48be86d668af52030200469f21b8e Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Wed, 15 Dec 2021 12:40:29 -0800
Subject: [PATCH 3861/4878] x86/perf: Avoid warning for Arch LBR without XSAVE

[ Upstream commit 8c16dc047b5dd8f7b3bf4584fa75733ea0dde7dc ]

Some hypervisors support Arch LBR, but without the LBR XSAVE support.
The current Arch LBR init code prints a warning when the xsave size (0) is
unexpected. Avoid printing the warning for the "no LBR XSAVE" case.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211215204029.150686-1-ak@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/events/intel/lbr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 9c1a013d56822..bd8516e6c353c 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1734,6 +1734,9 @@ static bool is_arch_lbr_xsave_available(void)
 	 * Check the LBR state with the corresponding software structure.
 	 * Disable LBR XSAVES support if the size doesn't match.
 	 */
+	if (xfeature_size(XFEATURE_LBR) == 0)
+		return false;
+
 	if (WARN_ON(xfeature_size(XFEATURE_LBR) != get_lbr_state_size()))
 		return false;
 
-- 
GitLab


From 9b569faabd2227025a4d0b9b9f18928d79d9d4ad Mon Sep 17 00:00:00 2001
From: Raymond Jay Golo <rjgolo@gmail.com>
Date: Thu, 13 Jan 2022 08:06:20 +0800
Subject: [PATCH 3862/4878] drm: panel-orientation-quirks: Add quirk for the
 1Netbook OneXPlayer

[ Upstream commit d3cbc6e323c9299d10c8d2e4127c77c7d05d07b1 ]

The 1Netbook OneXPlayer uses a panel which has been mounted
90 degrees rotated. Add a quirk for this.

Signed-off-by: Raymond Jay Golo <rjgolo@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220113000619.90988-1-rjgolo@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 9d1bd8f491ad7..448c2f2d803a6 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -115,6 +115,12 @@ static const struct drm_dmi_panel_orientation_data lcd1280x1920_rightside_up = {
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };
 
+static const struct drm_dmi_panel_orientation_data lcd1600x2560_leftside_up = {
+	.width = 1600,
+	.height = 2560,
+	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
+};
+
 static const struct dmi_system_id orientation_data[] = {
 	{	/* Acer One 10 (S1003) */
 		.matches = {
@@ -261,6 +267,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Default string"),
 		},
 		.driver_data = (void *)&onegx1_pro,
+	}, {	/* OneXPlayer */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ONE-NETBOOK TECHNOLOGY CO., LTD."),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ONE XPLAYER"),
+		},
+		.driver_data = (void *)&lcd1600x2560_leftside_up,
 	}, {	/* Samsung GalaxyBook 10.6 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
-- 
GitLab


From 3d0eafd459b2cd32c3044043addc4902c5911ffa Mon Sep 17 00:00:00 2001
From: Victor Nogueira <victor@mojatatu.com>
Date: Tue, 18 Jan 2022 14:19:09 -0300
Subject: [PATCH 3863/4878] net: sched: Clarify error message when qdisc kind
 is unknown

[ Upstream commit 973bf8fdd12f0e70ea351c018e68edd377a836d1 ]

When adding a tc rule with a qdisc kind that is not supported or not
compiled into the kernel, the kernel emits the following error: "Error:
Specified qdisc not found.". Found via tdc testing when ETS qdisc was not
compiled in and it was not obvious right away what the message meant
without looking at the kernel code.

Change the error message to be more explicit and say the qdisc kind is
unknown.

Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 7b24582a8a164..6758968e79327 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1204,7 +1204,7 @@ static struct Qdisc *qdisc_create(struct net_device *dev,
 
 	err = -ENOENT;
 	if (!ops) {
-		NL_SET_ERR_MSG(extack, "Specified qdisc not found");
+		NL_SET_ERR_MSG(extack, "Specified qdisc kind is unknown");
 		goto err_out;
 	}
 
-- 
GitLab


From 67baac10dd5ad1e9f50e8f2659984b3b0728d54e Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Mon, 6 Dec 2021 11:11:51 +0000
Subject: [PATCH 3864/4878] powerpc/fixmap: Fix VM debug warning on unmap

[ Upstream commit aec982603aa8cc0a21143681feb5f60ecc69d718 ]

Unmapping a fixmap entry is done by calling __set_fixmap()
with FIXMAP_PAGE_CLEAR as flags.

Today, powerpc __set_fixmap() calls map_kernel_page().

map_kernel_page() is not happy when called a second time
for the same page.

	WARNING: CPU: 0 PID: 1 at arch/powerpc/mm/pgtable.c:194 set_pte_at+0xc/0x1e8
	CPU: 0 PID: 1 Comm: swapper Not tainted 5.16.0-rc3-s3k-dev-01993-g350ff07feb7d-dirty #682
	NIP:  c0017cd4 LR: c00187f0 CTR: 00000010
	REGS: e1011d50 TRAP: 0700   Not tainted  (5.16.0-rc3-s3k-dev-01993-g350ff07feb7d-dirty)
	MSR:  00029032 <EE,ME,IR,DR,RI>  CR: 42000208  XER: 00000000

	GPR00: c0165fec e1011e10 c14c0000 c0ee2550 ff800000 c0f3d000 00000000 c001686c
	GPR08: 00001000 b00045a9 00000001 c0f58460 c0f50000 00000000 c0007e10 00000000
	GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
	GPR24: 00000000 00000000 c0ee2550 00000000 c0f57000 00000ff8 00000000 ff800000
	NIP [c0017cd4] set_pte_at+0xc/0x1e8
	LR [c00187f0] map_kernel_page+0x9c/0x100
	Call Trace:
	[e1011e10] [c0736c68] vsnprintf+0x358/0x6c8 (unreliable)
	[e1011e30] [c0165fec] __set_fixmap+0x30/0x44
	[e1011e40] [c0c13bdc] early_iounmap+0x11c/0x170
	[e1011e70] [c0c06cb0] ioremap_legacy_serial_console+0x88/0xc0
	[e1011e90] [c0c03634] do_one_initcall+0x80/0x178
	[e1011ef0] [c0c0385c] kernel_init_freeable+0xb4/0x250
	[e1011f20] [c0007e34] kernel_init+0x24/0x140
	[e1011f30] [c0016268] ret_from_kernel_thread+0x5c/0x64
	Instruction dump:
	7fe3fb78 48019689 80010014 7c630034 83e1000c 5463d97e 7c0803a6 38210010
	4e800020 81250000 712a0001 41820008 <0fe00000> 9421ffe0 93e1001c 48000030

Implement unmap_kernel_page() which clears an existing pte.

Reported-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b0b752f6f6ecc60653e873f385c6f0dce4e9ab6a.1638789098.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/book3s/32/pgtable.h | 1 +
 arch/powerpc/include/asm/book3s/64/pgtable.h | 2 ++
 arch/powerpc/include/asm/fixmap.h            | 6 ++++--
 arch/powerpc/include/asm/nohash/32/pgtable.h | 1 +
 arch/powerpc/include/asm/nohash/64/pgtable.h | 1 +
 arch/powerpc/mm/pgtable.c                    | 9 +++++++++
 6 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 523d3e6e24009..94c5c66231a8c 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -142,6 +142,7 @@ static inline bool pte_user(pte_t pte)
 #ifndef __ASSEMBLY__
 
 int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
+void unmap_kernel_page(unsigned long va);
 
 #endif /* !__ASSEMBLY__ */
 
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 4a3dca0271f1e..71e2c524f1eea 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1054,6 +1054,8 @@ static inline int map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t p
 	return hash__map_kernel_page(ea, pa, prot);
 }
 
+void unmap_kernel_page(unsigned long va);
+
 static inline int __meminit vmemmap_create_mapping(unsigned long start,
 						   unsigned long page_size,
 						   unsigned long phys)
diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/fixmap.h
index 591b2f4deed53..897cc68758d44 100644
--- a/arch/powerpc/include/asm/fixmap.h
+++ b/arch/powerpc/include/asm/fixmap.h
@@ -111,8 +111,10 @@ static inline void __set_fixmap(enum fixed_addresses idx,
 		BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
 	else if (WARN_ON(idx >= __end_of_fixed_addresses))
 		return;
-
-	map_kernel_page(__fix_to_virt(idx), phys, flags);
+	if (pgprot_val(flags))
+		map_kernel_page(__fix_to_virt(idx), phys, flags);
+	else
+		unmap_kernel_page(__fix_to_virt(idx));
 }
 
 #define __early_set_fixmap	__set_fixmap
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 96522f7f0618a..e53cc07e6b9ec 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -65,6 +65,7 @@ extern int icache_44x_need_flush;
 #ifndef __ASSEMBLY__
 
 int map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot);
+void unmap_kernel_page(unsigned long va);
 
 #endif /* !__ASSEMBLY__ */
 
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index 57cd3892bfe05..1eacff0fff029 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -311,6 +311,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 #define __swp_entry_to_pte(x)		__pte((x).val)
 
 int map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot);
+void unmap_kernel_page(unsigned long va);
 extern int __meminit vmemmap_create_mapping(unsigned long start,
 					    unsigned long page_size,
 					    unsigned long phys);
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 15555c95cebc7..faaf33e204de1 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -194,6 +194,15 @@ void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
 	__set_pte_at(mm, addr, ptep, pte, 0);
 }
 
+void unmap_kernel_page(unsigned long va)
+{
+	pmd_t *pmdp = pmd_off_k(va);
+	pte_t *ptep = pte_offset_kernel(pmdp, va);
+
+	pte_clear(&init_mm, va, ptep);
+	flush_tlb_kernel_range(va, va + PAGE_SIZE);
+}
+
 /*
  * This is called when relaxing access to a PTE. It's also called in the page
  * fault path when we don't hit any of the major fault cases, ie, a minor
-- 
GitLab


From 7dbda616fc64298cedfb5b6cd52049f8038234fb Mon Sep 17 00:00:00 2001
From: ZouMingzhe <mingzhe.zou@easystack.cn>
Date: Tue, 11 Jan 2022 13:47:42 +0800
Subject: [PATCH 3865/4878] scsi: target: iscsi: Make sure the np under each
 tpg is unique

[ Upstream commit a861790afaa8b6369eee8a88c5d5d73f5799c0c6 ]

iscsit_tpg_check_network_portal() has nested for_each loops and is supposed
to return true when a match is found. However, the tpg loop will still
continue after existing the tpg_np loop. If this tpg_np is not the last the
match value will be changed.

Break the outer loop after finding a match and make sure the np under each
tpg is unique.

Link: https://lore.kernel.org/r/20220111054742.19582-1-mingzhe.zou@easystack.cn
Signed-off-by: ZouMingzhe <mingzhe.zou@easystack.cn>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/iscsi/iscsi_target_tpg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 8075f60fd02c3..2d5cf1714ae05 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -443,6 +443,9 @@ static bool iscsit_tpg_check_network_portal(
 				break;
 		}
 		spin_unlock(&tpg->tpg_np_lock);
+
+		if (match)
+			break;
 	}
 	spin_unlock(&tiqn->tiqn_tpg_lock);
 
-- 
GitLab


From 150d448c663d5f01c25aeb31ca62b46525ef5010 Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@foxmail.com>
Date: Sun, 16 Jan 2022 11:06:49 +0800
Subject: [PATCH 3866/4878] scsi: ufs: ufshcd-pltfrm: Check the return value of
 devm_kstrdup()

[ Upstream commit a65b32748f4566f986ba2495a8236c141fa42a26 ]

devm_kstrdup() returns pointer to allocated string on success, NULL on
failure. So it is better to check the return value of it.

Link: https://lore.kernel.org/r/tencent_4257E15D4A94FF9020DDCC4BB9B21C041408@qq.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufshcd-pltfrm.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index e49505534d498..0f2430fb398db 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -92,6 +92,11 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 		clki->min_freq = clkfreq[i];
 		clki->max_freq = clkfreq[i+1];
 		clki->name = devm_kstrdup(dev, name, GFP_KERNEL);
+		if (!clki->name) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
 		if (!strcmp(name, "ref_clk"))
 			clki->keep_link_active = true;
 		dev_dbg(dev, "%s: min %u max %u name %s\n", "freq-table-hz",
@@ -128,6 +133,8 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 		return -ENOMEM;
 
 	vreg->name = devm_kstrdup(dev, name, GFP_KERNEL);
+	if (!vreg->name)
+		return -ENOMEM;
 
 	snprintf(prop_name, MAX_PROP_SIZE, "%s-max-microamp", name);
 	if (of_property_read_u32(np, prop_name, &vreg->max_uA)) {
-- 
GitLab


From aa7352aa155e19815b41f09f114fe9f110fde4d8 Mon Sep 17 00:00:00 2001
From: Saurav Kashyap <skashyap@marvell.com>
Date: Mon, 17 Jan 2022 05:53:09 -0800
Subject: [PATCH 3867/4878] scsi: qedf: Add stag_work to all the vports

[ Upstream commit b70a99fd13282d7885f69bf1372e28b7506a1613 ]

Call trace seen when creating NPIV ports, only 32 out of 64 show online.
stag work was not initialized for vport, hence initialize the stag work.

WARNING: CPU: 8 PID: 645 at kernel/workqueue.c:1635 __queue_delayed_work+0x68/0x80
CPU: 8 PID: 645 Comm: kworker/8:1 Kdump: loaded Tainted: G IOE    --------- --
 4.18.0-348.el8.x86_64 #1
Hardware name: Dell Inc. PowerEdge MX740c/0177V9, BIOS 2.12.2 07/09/2021
Workqueue: events fc_lport_timeout [libfc]
RIP: 0010:__queue_delayed_work+0x68/0x80
Code: 89 b2 88 00 00 00 44 89 82 90 00 00 00 48 01 c8 48 89 42 50 41 81
f8 00 20 00 00 75 1d e9 60 24 07 00 44 89 c7 e9 98 f6 ff ff <0f> 0b eb
c5 0f 0b eb a1 0f 0b eb a7 0f 0b eb ac 44 89 c6 e9 40 23
RSP: 0018:ffffae514bc3be40 EFLAGS: 00010006
RAX: ffff8d25d6143750 RBX: 0000000000000202 RCX: 0000000000000002
RDX: ffff8d2e31383748 RSI: ffff8d25c000d600 RDI: ffff8d2e31383788
RBP: ffff8d2e31380de0 R08: 0000000000002000 R09: ffff8d2e31383750
R10: ffffffffc0c957e0 R11: ffff8d2624800000 R12: ffff8d2e31380a58
R13: ffff8d2d915eb000 R14: ffff8d25c499b5c0 R15: ffff8d2e31380e18
FS:  0000000000000000(0000) GS:ffff8d2d1fb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fd0484b8b8 CR3: 00000008ffc10006 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
  queue_delayed_work_on+0x36/0x40
  qedf_elsct_send+0x57/0x60 [qedf]
  fc_lport_enter_flogi+0x90/0xc0 [libfc]
  fc_lport_timeout+0xb7/0x140 [libfc]
  process_one_work+0x1a7/0x360
  ? create_worker+0x1a0/0x1a0
  worker_thread+0x30/0x390
  ? create_worker+0x1a0/0x1a0
  kthread+0x116/0x130
  ? kthread_flush_work_fn+0x10/0x10
  ret_from_fork+0x35/0x40
 ---[ end trace 008f00f722f2c2ff ]--

Initialize stag work for all the vports.

Link: https://lore.kernel.org/r/20220117135311.6256-2-njavali@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qedf/qedf_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index c63dcc39f76c2..e64457f53da86 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -1859,6 +1859,7 @@ static int qedf_vport_create(struct fc_vport *vport, bool disabled)
 	vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
 	init_completion(&vport_qedf->flogi_compl);
 	INIT_LIST_HEAD(&vport_qedf->fcports);
+	INIT_DELAYED_WORK(&vport_qedf->stag_work, qedf_stag_change_work);
 
 	rc = qedf_vport_libfc_config(vport, vn_port);
 	if (rc) {
-- 
GitLab


From 87f187e5265bc8e3b38faef8b9db864cdd61dde7 Mon Sep 17 00:00:00 2001
From: Saurav Kashyap <skashyap@marvell.com>
Date: Mon, 17 Jan 2022 05:53:10 -0800
Subject: [PATCH 3868/4878] scsi: qedf: Fix refcount issue when LOGO is
 received during TMF

[ Upstream commit 5239ab63f17cee643bd4bf6addfedebaa7d4f41e ]

Hung task call trace was seen during LOGO processing.

[  974.309060] [0000:00:00.0]:[qedf_eh_device_reset:868]: 1:0:2:0: LUN RESET Issued...
[  974.309065] [0000:00:00.0]:[qedf_initiate_tmf:2422]: tm_flags 0x10 sc_cmd 00000000c16b930f op = 0x2a target_id = 0x2 lun=0
[  974.309178] [0000:00:00.0]:[qedf_initiate_tmf:2431]: portid=016900 tm_flags =LUN RESET
[  974.309222] [0000:00:00.0]:[qedf_initiate_tmf:2438]: orig io_req = 00000000ec78df8f xid = 0x180 ref_cnt = 1.
[  974.309625] host1: rport 016900: Received LOGO request while in state Ready
[  974.309627] host1: rport 016900: Delete port
[  974.309642] host1: rport 016900: work event 3
[  974.309644] host1: rport 016900: lld callback ev 3
[  974.313243] [0000:61:00.2]:[qedf_execute_tmf:2383]:1: fcport is uploading, not executing flush.
[  974.313295] [0000:61:00.2]:[qedf_execute_tmf:2400]:1: task mgmt command success...
[  984.031088] INFO: task jbd2/dm-15-8:7645 blocked for more than 120 seconds.
[  984.031136]       Not tainted 4.18.0-305.el8.x86_64 #1

[  984.031166] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  984.031209] jbd2/dm-15-8    D    0  7645      2 0x80004080
[  984.031212] Call Trace:
[  984.031222]  __schedule+0x2c4/0x700
[  984.031230]  ? unfreeze_partials.isra.83+0x16e/0x1a0
[  984.031233]  ? bit_wait_timeout+0x90/0x90
[  984.031235]  schedule+0x38/0xa0
[  984.031238]  io_schedule+0x12/0x40
[  984.031240]  bit_wait_io+0xd/0x50
[  984.031243]  __wait_on_bit+0x6c/0x80
[  984.031248]  ? free_buffer_head+0x21/0x50
[  984.031251]  out_of_line_wait_on_bit+0x91/0xb0
[  984.031257]  ? init_wait_var_entry+0x50/0x50
[  984.031268]  jbd2_journal_commit_transaction+0x112e/0x19f0 [jbd2]
[  984.031280]  kjournald2+0xbd/0x270 [jbd2]
[  984.031284]  ? finish_wait+0x80/0x80
[  984.031291]  ? commit_timeout+0x10/0x10 [jbd2]
[  984.031294]  kthread+0x116/0x130
[  984.031300]  ? kthread_flush_work_fn+0x10/0x10
[  984.031305]  ret_from_fork+0x1f/0x40

There was a ref count issue when LOGO is received during TMF. This leads to
one of the I/Os hanging with the driver. Fix the ref count.

Link: https://lore.kernel.org/r/20220117135311.6256-3-njavali@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qedf/qedf_io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
index 63f99f4eeed97..472374d83cede 100644
--- a/drivers/scsi/qedf/qedf_io.c
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -2268,6 +2268,7 @@ process_els:
 	    io_req->tm_flags == FCP_TMF_TGT_RESET) {
 		clear_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
 		io_req->sc_cmd = NULL;
+		kref_put(&io_req->refcount, qedf_release_cmd);
 		complete(&io_req->tm_done);
 	}
 
-- 
GitLab


From 12cf1208035d72a0e6a0f4127b2cbc3961154240 Mon Sep 17 00:00:00 2001
From: John Garry <john.garry@huawei.com>
Date: Tue, 18 Jan 2022 20:15:05 +0800
Subject: [PATCH 3869/4878] scsi: pm8001: Fix bogus FW crash for maxcpus=1

[ Upstream commit 62afb379a0fee7e9c2f9f68e1abeb85ceddf51b9 ]

According to the comment in check_fw_ready() we should not check the
IOP1_READY field in register SCRATCH_PAD_1 for 8008 or 8009 controllers.

However we check this very field in process_oq() for processing the highest
index interrupt vector. The highest interrupt vector is checked as the FW
is programmed to signal fatal errors through this irq.

Change that function to not check IOP1_READY for those mentioned
controllers, but do check ILA_READY in both cases.

The reason I assume that this was not hit earlier was because we always
allocated 64 MSI(X), and just did not pass the vector index check in
process_oq(), i.e.  the handler never ran for vector index 63.

Link: https://lore.kernel.org/r/1642508105-95432-1-git-send-email-john.garry@huawei.com
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 16 ++++++++++++++--
 drivers/scsi/pm8001/pm80xx_hwi.h |  6 +++++-
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index a203a4fc2674a..b22a8ab754faa 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -4057,10 +4057,22 @@ static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
 	unsigned long flags;
 	u32 regval;
 
+	/*
+	 * Fatal errors are programmed to be signalled in irq vector
+	 * pm8001_ha->max_q_num - 1 through pm8001_ha->main_cfg_tbl.pm80xx_tbl.
+	 * fatal_err_interrupt
+	 */
 	if (vec == (pm8001_ha->max_q_num - 1)) {
+		u32 mipsall_ready;
+
+		if (pm8001_ha->chip_id == chip_8008 ||
+		    pm8001_ha->chip_id == chip_8009)
+			mipsall_ready = SCRATCH_PAD_MIPSALL_READY_8PORT;
+		else
+			mipsall_ready = SCRATCH_PAD_MIPSALL_READY_16PORT;
+
 		regval = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
-		if ((regval & SCRATCH_PAD_MIPSALL_READY) !=
-					SCRATCH_PAD_MIPSALL_READY) {
+		if ((regval & mipsall_ready) != mipsall_ready) {
 			pm8001_ha->controller_fatal_error = true;
 			pm8001_dbg(pm8001_ha, FAIL,
 				   "Firmware Fatal error! Regval:0x%x\n",
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h
index 701951a0f715b..0dfe9034f7e7f 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.h
+++ b/drivers/scsi/pm8001/pm80xx_hwi.h
@@ -1391,8 +1391,12 @@ typedef struct SASProtocolTimerConfig SASProtocolTimerConfig_t;
 #define SCRATCH_PAD_BOOT_LOAD_SUCCESS	0x0
 #define SCRATCH_PAD_IOP0_READY		0xC00
 #define SCRATCH_PAD_IOP1_READY		0x3000
-#define SCRATCH_PAD_MIPSALL_READY	(SCRATCH_PAD_IOP1_READY | \
+#define SCRATCH_PAD_MIPSALL_READY_16PORT	(SCRATCH_PAD_IOP1_READY | \
 					SCRATCH_PAD_IOP0_READY | \
+					SCRATCH_PAD_ILA_READY | \
+					SCRATCH_PAD_RAAE_READY)
+#define SCRATCH_PAD_MIPSALL_READY_8PORT	(SCRATCH_PAD_IOP0_READY | \
+					SCRATCH_PAD_ILA_READY | \
 					SCRATCH_PAD_RAAE_READY)
 
 /* boot loader state */
-- 
GitLab


From 3bc5b128b9a2efaf5d5e54f2197b2a01d2f79a27 Mon Sep 17 00:00:00 2001
From: Kiwoong Kim <kwmad.kim@samsung.com>
Date: Fri, 21 Jan 2022 14:37:55 +0900
Subject: [PATCH 3870/4878] scsi: ufs: Treat link loss as fatal error

[ Upstream commit c99b9b2301492b665b6e51ba6c06ec362eddcd10 ]

This event is raised when link is lost as specified in UFSHCI spec and that
means communication is not possible. Thus initializing UFS interface needs
to be done.

Make UFS driver considers Link Lost as fatal in the INT_FATAL_ERRORS
mask. This will trigger a host reset whenever a link lost interrupt occurs.

Link: https://lore.kernel.org/r/1642743475-54275-1-git-send-email-kwmad.kim@samsung.com
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufshci.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 6795e1f0e8f8c..1d999228efc85 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -138,7 +138,8 @@ enum {
 #define INT_FATAL_ERRORS	(DEVICE_FATAL_ERROR |\
 				CONTROLLER_FATAL_ERROR |\
 				SYSTEM_BUS_FATAL_ERROR |\
-				CRYPTO_ENGINE_FATAL_ERROR)
+				CRYPTO_ENGINE_FATAL_ERROR |\
+				UIC_LINK_LOST)
 
 /* HCS - Host Controller Status 30h */
 #define DEVICE_PRESENT				0x1
-- 
GitLab


From 0e42c4a3d732517edc3766dd45a14e60d29dd929 Mon Sep 17 00:00:00 2001
From: Tong Zhang <ztong0001@gmail.com>
Date: Sun, 23 Jan 2022 14:57:17 -0800
Subject: [PATCH 3871/4878] scsi: myrs: Fix crash in error case

[ Upstream commit 4db09593af0b0b4d7d4805ebb3273df51d7cc30d ]

In myrs_detect(), cs->disable_intr is NULL when privdata->hw_init() fails
with non-zero. In this case, myrs_cleanup(cs) will call a NULL ptr and
crash the kernel.

[    1.105606] myrs 0000:00:03.0: Unknown Initialization Error 5A
[    1.105872] myrs 0000:00:03.0: Failed to initialize Controller
[    1.106082] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    1.110774] Call Trace:
[    1.110950]  myrs_cleanup+0xe4/0x150 [myrs]
[    1.111135]  myrs_probe.cold+0x91/0x56a [myrs]
[    1.111302]  ? DAC960_GEM_intr_handler+0x1f0/0x1f0 [myrs]
[    1.111500]  local_pci_probe+0x48/0x90

Link: https://lore.kernel.org/r/20220123225717.1069538-1-ztong0001@gmail.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/myrs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c
index 78c41bbf67562..e6a6678967e52 100644
--- a/drivers/scsi/myrs.c
+++ b/drivers/scsi/myrs.c
@@ -2272,7 +2272,8 @@ static void myrs_cleanup(struct myrs_hba *cs)
 	myrs_unmap(cs);
 
 	if (cs->mmio_base) {
-		cs->disable_intr(cs);
+		if (cs->disable_intr)
+			cs->disable_intr(cs);
 		iounmap(cs->mmio_base);
 		cs->mmio_base = NULL;
 	}
-- 
GitLab


From 4607218fde84a76973d3941999360360ff6e333a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?=
 <amadeuszx.slawinski@linux.intel.com>
Date: Wed, 19 Jan 2022 11:47:51 +0100
Subject: [PATCH 3872/4878] PM: hibernate: Remove register_nosave_region_late()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 33569ef3c754a82010f266b7b938a66a3ccf90a4 ]

It is an unused wrapper forcing kmalloc allocation for registering
nosave regions. Also, rename __register_nosave_region() to
register_nosave_region() now that there is no need for disambiguation.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/suspend.h | 11 +----------
 kernel/power/snapshot.c | 21 +++++++--------------
 2 files changed, 8 insertions(+), 24 deletions(-)

diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 8af13ba60c7e4..c1310c571d805 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -430,15 +430,7 @@ struct platform_hibernation_ops {
 
 #ifdef CONFIG_HIBERNATION
 /* kernel/power/snapshot.c */
-extern void __register_nosave_region(unsigned long b, unsigned long e, int km);
-static inline void __init register_nosave_region(unsigned long b, unsigned long e)
-{
-	__register_nosave_region(b, e, 0);
-}
-static inline void __init register_nosave_region_late(unsigned long b, unsigned long e)
-{
-	__register_nosave_region(b, e, 1);
-}
+extern void register_nosave_region(unsigned long b, unsigned long e);
 extern int swsusp_page_is_forbidden(struct page *);
 extern void swsusp_set_page_free(struct page *);
 extern void swsusp_unset_page_free(struct page *);
@@ -457,7 +449,6 @@ int pfn_is_nosave(unsigned long pfn);
 int hibernate_quiet_exec(int (*func)(void *data), void *data);
 #else /* CONFIG_HIBERNATION */
 static inline void register_nosave_region(unsigned long b, unsigned long e) {}
-static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}
 static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
 static inline void swsusp_set_page_free(struct page *p) {}
 static inline void swsusp_unset_page_free(struct page *p) {}
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 46b1804c1ddf7..1da013f50059a 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -944,8 +944,7 @@ static void memory_bm_recycle(struct memory_bitmap *bm)
  * Register a range of page frames the contents of which should not be saved
  * during hibernation (to be used in the early initialization code).
  */
-void __init __register_nosave_region(unsigned long start_pfn,
-				     unsigned long end_pfn, int use_kmalloc)
+void __init register_nosave_region(unsigned long start_pfn, unsigned long end_pfn)
 {
 	struct nosave_region *region;
 
@@ -961,18 +960,12 @@ void __init __register_nosave_region(unsigned long start_pfn,
 			goto Report;
 		}
 	}
-	if (use_kmalloc) {
-		/* During init, this shouldn't fail */
-		region = kmalloc(sizeof(struct nosave_region), GFP_KERNEL);
-		BUG_ON(!region);
-	} else {
-		/* This allocation cannot fail */
-		region = memblock_alloc(sizeof(struct nosave_region),
-					SMP_CACHE_BYTES);
-		if (!region)
-			panic("%s: Failed to allocate %zu bytes\n", __func__,
-			      sizeof(struct nosave_region));
-	}
+	/* This allocation cannot fail */
+	region = memblock_alloc(sizeof(struct nosave_region),
+				SMP_CACHE_BYTES);
+	if (!region)
+		panic("%s: Failed to allocate %zu bytes\n", __func__,
+		      sizeof(struct nosave_region));
 	region->start_pfn = start_pfn;
 	region->end_pfn = end_pfn;
 	list_add_tail(&region->list, &nosave_regions);
-- 
GitLab


From a117e986e9ccd8ebeaf2308b797707a2adcd3be3 Mon Sep 17 00:00:00 2001
From: Amelie Delaunay <amelie.delaunay@foss.st.com>
Date: Tue, 7 Dec 2021 14:01:01 +0100
Subject: [PATCH 3873/4878] usb: dwc2: gadget: don't try to disable ep0 in
 dwc2_hsotg_suspend

[ Upstream commit ac55d163855924aa5af9f1560977da8f346963c8 ]

Calling dwc2_hsotg_ep_disable on ep0 (in/out) will lead to the following
logs before returning -EINVAL:
dwc2 49000000.usb-otg: dwc2_hsotg_ep_disable: called for ep0
dwc2 49000000.usb-otg: dwc2_hsotg_ep_disable: called for ep0

To avoid these two logs while suspending, start disabling the endpoint
from the index 1, as done in dwc2_hsotg_udc_stop:

	/* all endpoints should be shutdown */
	for (ep = 1; ep < hsotg->num_of_eps; ep++) {
		if (hsotg->eps_in[ep])
			dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep);
		if (hsotg->eps_out[ep])
			dwc2_hsotg_ep_disable_lock(&hsotg->eps_out[ep]->ep);
	}

Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211207130101.270314-1-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/gadget.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 449f19c3633c2..ec54971063f8f 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -5032,7 +5032,7 @@ int dwc2_hsotg_suspend(struct dwc2_hsotg *hsotg)
 		hsotg->gadget.speed = USB_SPEED_UNKNOWN;
 		spin_unlock_irqrestore(&hsotg->lock, flags);
 
-		for (ep = 0; ep < hsotg->num_of_eps; ep++) {
+		for (ep = 1; ep < hsotg->num_of_eps; ep++) {
 			if (hsotg->eps_in[ep])
 				dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep);
 			if (hsotg->eps_out[ep])
-- 
GitLab


From d0774cf730564a4306c0ef47f8966dfd4443435c Mon Sep 17 00:00:00 2001
From: James Clark <james.clark@arm.com>
Date: Mon, 6 Dec 2021 11:38:40 +0000
Subject: [PATCH 3874/4878] perf: Always wake the parent event

[ Upstream commit 961c39121759ad09a89598ec4ccdd34ae0468a19 ]

When using per-process mode and event inheritance is set to true,
forked processes will create a new perf events via inherit_event() ->
perf_event_alloc(). But these events will not have ring buffers
assigned to them. Any call to wakeup will be dropped if it's called on
an event with no ring buffer assigned because that's the object that
holds the wakeup list.

If the child event is disabled due to a call to
perf_aux_output_begin() or perf_aux_output_end(), the wakeup is
dropped leaving userspace hanging forever on the poll.

Normally the event is explicitly re-enabled by userspace after it
wakes up to read the aux data, but in this case it does not get woken
up so the event remains disabled.

This can be reproduced when using Arm SPE and 'stress' which forks once
before running the workload. By looking at the list of aux buffers read,
it's apparent that they stop after the fork:

  perf record -e arm_spe// -vvv -- stress -c 1

With this patch applied they continue to be printed. This behaviour
doesn't happen when using systemwide or per-cpu mode.

Reported-by: Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20211206113840.130802-2-james.clark@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/events/core.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index c6493f7e02359..6d3a67bef3951 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5877,6 +5877,8 @@ static void ring_buffer_attach(struct perf_event *event,
 	struct perf_buffer *old_rb = NULL;
 	unsigned long flags;
 
+	WARN_ON_ONCE(event->parent);
+
 	if (event->rb) {
 		/*
 		 * Should be impossible, we set this when removing
@@ -5934,6 +5936,9 @@ static void ring_buffer_wakeup(struct perf_event *event)
 {
 	struct perf_buffer *rb;
 
+	if (event->parent)
+		event = event->parent;
+
 	rcu_read_lock();
 	rb = rcu_dereference(event->rb);
 	if (rb) {
@@ -5947,6 +5952,9 @@ struct perf_buffer *ring_buffer_get(struct perf_event *event)
 {
 	struct perf_buffer *rb;
 
+	if (event->parent)
+		event = event->parent;
+
 	rcu_read_lock();
 	rb = rcu_dereference(event->rb);
 	if (rb) {
@@ -6618,7 +6626,7 @@ static unsigned long perf_prepare_sample_aux(struct perf_event *event,
 	if (WARN_ON_ONCE(READ_ONCE(sampler->oncpu) != smp_processor_id()))
 		goto out;
 
-	rb = ring_buffer_get(sampler->parent ? sampler->parent : sampler);
+	rb = ring_buffer_get(sampler);
 	if (!rb)
 		goto out;
 
@@ -6684,7 +6692,7 @@ static void perf_aux_sample_output(struct perf_event *event,
 	if (WARN_ON_ONCE(!sampler || !data->aux_size))
 		return;
 
-	rb = ring_buffer_get(sampler->parent ? sampler->parent : sampler);
+	rb = ring_buffer_get(sampler);
 	if (!rb)
 		return;
 
-- 
GitLab


From c9b8cc1046f0b869ff262060dc8b4538b044fc41 Mon Sep 17 00:00:00 2001
From: Wu Zheng <wu.zheng@intel.com>
Date: Mon, 21 Jun 2021 19:07:01 -0400
Subject: [PATCH 3875/4878] nvme-pci: add the IGNORE_DEV_SUBNQN quirk for Intel
 P4500/P4600 SSDs

[ Upstream commit 25e58af4be412d59e056da65cc1cefbd89185bd2 ]

The Intel P4500/P4600 SSDs do not report a subsystem NQN despite claiming
compliance to a standards version where reporting one is required.

Add the IGNORE_DEV_SUBNQN quirk to not fail the initialization of a
second such SSDs in a system.

Signed-off-by: Zheng Wu <wu.zheng@intel.com>
Signed-off-by: Ye Jinhe <jinhe.ye@intel.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 1b85349f57af0..97afeb898b253 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3198,7 +3198,8 @@ static const struct pci_device_id nvme_id_table[] = {
 				NVME_QUIRK_DEALLOCATE_ZEROES, },
 	{ PCI_VDEVICE(INTEL, 0x0a54),	/* Intel P4500/P4600 */
 		.driver_data = NVME_QUIRK_STRIPE_SIZE |
-				NVME_QUIRK_DEALLOCATE_ZEROES, },
+				NVME_QUIRK_DEALLOCATE_ZEROES |
+				NVME_QUIRK_IGNORE_DEV_SUBNQN, },
 	{ PCI_VDEVICE(INTEL, 0x0a55),	/* Dell Express Flash P4600 */
 		.driver_data = NVME_QUIRK_STRIPE_SIZE |
 				NVME_QUIRK_DEALLOCATE_ZEROES, },
-- 
GitLab


From 87bbd78a2cd1b40a607f55e5135b222e51f27b9c Mon Sep 17 00:00:00 2001
From: Jisheng Zhang <jszhang@kernel.org>
Date: Thu, 27 Jan 2022 00:52:15 +0800
Subject: [PATCH 3876/4878] net: stmmac: dwmac-sun8i: use return val of
 readl_poll_timeout()

[ Upstream commit 9e0db41e7a0b6f1271cbcfb16dbf5b8641b4e440 ]

When readl_poll_timeout() timeout, we'd better directly use its return
value.

Before this patch:
[    2.145528] dwmac-sun8i: probe of 4500000.ethernet failed with error -14

After this patch:
[    2.138520] dwmac-sun8i: probe of 4500000.ethernet failed with error -110

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 9f5ccf1a0a540..cad6588840d8b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -734,7 +734,7 @@ static int sun8i_dwmac_reset(struct stmmac_priv *priv)
 
 	if (err) {
 		dev_err(priv->device, "EMAC reset timeout\n");
-		return -EFAULT;
+		return err;
 	}
 	return 0;
 }
-- 
GitLab


From dc129275a7f7076f2773d57061bca45af14396dd Mon Sep 17 00:00:00 2001
From: Hou Wenlong <houwenlong93@linux.alibaba.com>
Date: Thu, 27 Jan 2022 14:54:49 +0800
Subject: [PATCH 3877/4878] KVM: eventfd: Fix false positive RCU usage warning

[ Upstream commit 6a0c61703e3a5d67845a4b275e1d9d7bc1b5aad7 ]

Fix the following false positive warning:
 =============================
 WARNING: suspicious RCU usage
 5.16.0-rc4+ #57 Not tainted
 -----------------------------
 arch/x86/kvm/../../../virt/kvm/eventfd.c:484 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 3 locks held by fc_vcpu 0/330:
  #0: ffff8884835fc0b0 (&vcpu->mutex){+.+.}-{3:3}, at: kvm_vcpu_ioctl+0x88/0x6f0 [kvm]
  #1: ffffc90004c0bb68 (&kvm->srcu){....}-{0:0}, at: vcpu_enter_guest+0x600/0x1860 [kvm]
  #2: ffffc90004c0c1d0 (&kvm->irq_srcu){....}-{0:0}, at: kvm_notify_acked_irq+0x36/0x180 [kvm]

 stack backtrace:
 CPU: 26 PID: 330 Comm: fc_vcpu 0 Not tainted 5.16.0-rc4+
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
 Call Trace:
  <TASK>
  dump_stack_lvl+0x44/0x57
  kvm_notify_acked_gsi+0x6b/0x70 [kvm]
  kvm_notify_acked_irq+0x8d/0x180 [kvm]
  kvm_ioapic_update_eoi+0x92/0x240 [kvm]
  kvm_apic_set_eoi_accelerated+0x2a/0xe0 [kvm]
  handle_apic_eoi_induced+0x3d/0x60 [kvm_intel]
  vmx_handle_exit+0x19c/0x6a0 [kvm_intel]
  vcpu_enter_guest+0x66e/0x1860 [kvm]
  kvm_arch_vcpu_ioctl_run+0x438/0x7f0 [kvm]
  kvm_vcpu_ioctl+0x38a/0x6f0 [kvm]
  __x64_sys_ioctl+0x89/0xc0
  do_syscall_64+0x3a/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Since kvm_unregister_irq_ack_notifier() does synchronize_srcu(&kvm->irq_srcu),
kvm->irq_ack_notifier_list is protected by kvm->irq_srcu. In fact,
kvm->irq_srcu SRCU read lock is held in kvm_notify_acked_irq(), making it
a false positive warning. So use hlist_for_each_entry_srcu() instead of
hlist_for_each_entry_rcu().

Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Hou Wenlong <houwenlong93@linux.alibaba.com>
Message-Id: <f98bac4f5052bad2c26df9ad50f7019e40434512.1643265976.git.houwenlong.hwl@antgroup.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 virt/kvm/eventfd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index c2323c27a28b5..518cd8dc390e2 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -451,8 +451,8 @@ bool kvm_irq_has_notifier(struct kvm *kvm, unsigned irqchip, unsigned pin)
 	idx = srcu_read_lock(&kvm->irq_srcu);
 	gsi = kvm_irq_map_chip_pin(kvm, irqchip, pin);
 	if (gsi != -1)
-		hlist_for_each_entry_rcu(kian, &kvm->irq_ack_notifier_list,
-					 link)
+		hlist_for_each_entry_srcu(kian, &kvm->irq_ack_notifier_list,
+					  link, srcu_read_lock_held(&kvm->irq_srcu))
 			if (kian->gsi == gsi) {
 				srcu_read_unlock(&kvm->irq_srcu, idx);
 				return true;
@@ -468,8 +468,8 @@ void kvm_notify_acked_gsi(struct kvm *kvm, int gsi)
 {
 	struct kvm_irq_ack_notifier *kian;
 
-	hlist_for_each_entry_rcu(kian, &kvm->irq_ack_notifier_list,
-				 link)
+	hlist_for_each_entry_srcu(kian, &kvm->irq_ack_notifier_list,
+				  link, srcu_read_lock_held(&kvm->irq_srcu))
 		if (kian->gsi == gsi)
 			kian->irq_acked(kian);
 }
-- 
GitLab


From db58a3d978b4c22472125e5e2e4aa554e5330757 Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Wed, 12 Jan 2022 18:01:31 +0100
Subject: [PATCH 3878/4878] KVM: nVMX: eVMCS: Filter out
 VM_EXIT_SAVE_VMX_PREEMPTION_TIMER

[ Upstream commit 7a601e2cf61558dfd534a9ecaad09f5853ad8204 ]

Enlightened VMCS v1 doesn't have VMX_PREEMPTION_TIMER_VALUE field,
PIN_BASED_VMX_PREEMPTION_TIMER is also filtered out already so it makes
sense to filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER too.

Note, none of the currently existing Windows/Hyper-V versions are known
to enable 'save VMX-preemption timer value' when eVMCS is in use, the
change is aimed at making the filtering future proof.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/vmx/evmcs.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/evmcs.h b/arch/x86/kvm/vmx/evmcs.h
index bd41d9462355f..011929a638230 100644
--- a/arch/x86/kvm/vmx/evmcs.h
+++ b/arch/x86/kvm/vmx/evmcs.h
@@ -59,7 +59,9 @@ DECLARE_STATIC_KEY_FALSE(enable_evmcs);
 	 SECONDARY_EXEC_SHADOW_VMCS |					\
 	 SECONDARY_EXEC_TSC_SCALING |					\
 	 SECONDARY_EXEC_PAUSE_LOOP_EXITING)
-#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL (VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
+#define EVMCS1_UNSUPPORTED_VMEXIT_CTRL					\
+	(VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL |				\
+	 VM_EXIT_SAVE_VMX_PREEMPTION_TIMER)
 #define EVMCS1_UNSUPPORTED_VMENTRY_CTRL (VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL)
 #define EVMCS1_UNSUPPORTED_VMFUNC (VMX_VMFUNC_EPTP_SWITCHING)
 
-- 
GitLab


From 9efad4cb03658b62514d8f8992525b2912272b7b Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Wed, 12 Jan 2022 18:01:30 +0100
Subject: [PATCH 3879/4878] KVM: nVMX: Also filter
 MSR_IA32_VMX_TRUE_PINBASED_CTLS when eVMCS

[ Upstream commit f80ae0ef089a09e8c18da43a382c3caac9a424a7 ]

Similar to MSR_IA32_VMX_EXIT_CTLS/MSR_IA32_VMX_TRUE_EXIT_CTLS,
MSR_IA32_VMX_ENTRY_CTLS/MSR_IA32_VMX_TRUE_ENTRY_CTLS pair,
MSR_IA32_VMX_TRUE_PINBASED_CTLS needs to be filtered the same way
MSR_IA32_VMX_PINBASED_CTLS is currently filtered as guests may solely rely
on 'true' MSR data.

Note, none of the currently existing Windows/Hyper-V versions are known
to stumble upon the unfiltered MSR_IA32_VMX_TRUE_PINBASED_CTLS, the change
is aimed at making the filtering future proof.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220112170134.1904308-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/vmx/evmcs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kvm/vmx/evmcs.c b/arch/x86/kvm/vmx/evmcs.c
index c0d6fee9225fe..5b68034ec5f9c 100644
--- a/arch/x86/kvm/vmx/evmcs.c
+++ b/arch/x86/kvm/vmx/evmcs.c
@@ -361,6 +361,7 @@ void nested_evmcs_filter_control_msr(u32 msr_index, u64 *pdata)
 	case MSR_IA32_VMX_PROCBASED_CTLS2:
 		ctl_high &= ~EVMCS1_UNSUPPORTED_2NDEXEC;
 		break;
+	case MSR_IA32_VMX_TRUE_PINBASED_CTLS:
 	case MSR_IA32_VMX_PINBASED_CTLS:
 		ctl_high &= ~EVMCS1_UNSUPPORTED_PINCTRL;
 		break;
-- 
GitLab


From bd39fe29bbbba8ad84605f6ded5c570b24f6cf8b Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 20 Jan 2022 01:07:19 +0000
Subject: [PATCH 3880/4878] KVM: SVM: Don't kill SEV guest if SMAP erratum
 triggers in usermode

[ Upstream commit cdf85e0c5dc766fc7fc779466280e454a6d04f87 ]

Inject a #GP instead of synthesizing triple fault to try to avoid killing
the guest if emulation of an SEV guest fails due to encountering the SMAP
erratum.  The injected #GP may still be fatal to the guest, e.g. if the
userspace process is providing critical functionality, but KVM should
make every attempt to keep the guest alive.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Message-Id: <20220120010719.711476-10-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/svm/svm.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index fa543c355fbdb..d515c8e68314c 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4155,7 +4155,21 @@ static bool svm_can_emulate_instruction(struct kvm_vcpu *vcpu, void *insn, int i
 			return true;
 
 		pr_err_ratelimited("KVM: SEV Guest triggered AMD Erratum 1096\n");
-		kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
+
+		/*
+		 * If the fault occurred in userspace, arbitrarily inject #GP
+		 * to avoid killing the guest and to hopefully avoid confusing
+		 * the guest kernel too much, e.g. injecting #PF would not be
+		 * coherent with respect to the guest's page tables.  Request
+		 * triple fault if the fault occurred in the kernel as there's
+		 * no fault that KVM can inject without confusing the guest.
+		 * In practice, the triple fault is moot as no sane SEV kernel
+		 * will execute from user memory while also running with SMAP=1.
+		 */
+		if (is_user)
+			kvm_inject_gp(vcpu, 0);
+		else
+			kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu);
 	}
 
 	return false;
-- 
GitLab


From 3aa5c8657292e05e6dfa8fe2316951001dab7e3a Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 20 Jan 2022 00:06:24 +0000
Subject: [PATCH 3881/4878] KVM: VMX: Set vmcs.PENDING_DBG.BS on #DB in
 STI/MOVSS blocking shadow

[ Upstream commit b9bed78e2fa9571b7c983b20666efa0009030c71 ]

Set vmcs.GUEST_PENDING_DBG_EXCEPTIONS.BS, a.k.a. the pending single-step
breakpoint flag, when re-injecting a #DB with RFLAGS.TF=1, and STI or
MOVSS blocking is active.  Setting the flag is necessary to make VM-Entry
consistency checks happy, as VMX has an invariant that if RFLAGS.TF is
set and STI/MOVSS blocking is true, then the previous instruction must
have been STI or MOV/POP, and therefore a single-step #DB must be pending
since the RFLAGS.TF cannot have been set by the previous instruction,
i.e. the one instruction delay after setting RFLAGS.TF must have already
expired.

Normally, the CPU sets vmcs.GUEST_PENDING_DBG_EXCEPTIONS.BS appropriately
when recording guest state as part of a VM-Exit, but #DB VM-Exits
intentionally do not treat the #DB as "guest state" as interception of
the #DB effectively makes the #DB host-owned, thus KVM needs to manually
set PENDING_DBG.BS when forwarding/re-injecting the #DB to the guest.

Note, although this bug can be triggered by guest userspace, doing so
requires IOPL=3, and guest userspace running with IOPL=3 has full access
to all I/O ports (from the guest's perspective) and can crash/reboot the
guest any number of ways.  IOPL=3 is required because STI blocking kicks
in if and only if RFLAGS.IF is toggled 0=>1, and if CPL>IOPL, STI either
takes a #GP or modifies RFLAGS.VIF, not RFLAGS.IF.

MOVSS blocking can be initiated by userspace, but can be coincident with
a #DB if and only if DR7.GD=1 (General Detect enabled) and a MOV DR is
executed in the MOVSS shadow.  MOV DR #GPs at CPL>0, thus MOVSS blocking
is problematic only for CPL0 (and only if the guest is crazy enough to
access a DR in a MOVSS shadow).  All other sources of #DBs are either
suppressed by MOVSS blocking (single-step, code fetch, data, and I/O),
are mutually exclusive with MOVSS blocking (T-bit task switch), or are
already handled by KVM (ICEBP, a.k.a. INT1).

This bug was originally found by running tests[1] created for XSA-308[2].
Note that Xen's userspace test emits ICEBP in the MOVSS shadow, which is
presumably why the Xen bug was deemed to be an exploitable DOS from guest
userspace.  KVM already handles ICEBP by skipping the ICEBP instruction
and thus clears MOVSS blocking as a side effect of its "emulation".

[1] http://xenbits.xenproject.org/docs/xtf/xsa-308_2main_8c_source.html
[2] https://xenbits.xen.org/xsa/advisory-308.html

Reported-by: David Woodhouse <dwmw2@infradead.org>
Reported-by: Alexander Graf <graf@amazon.de>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220120000624.655815-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/vmx/vmx.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 351ef5cf1436a..94f5f2129e3b4 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4846,8 +4846,33 @@ static int handle_exception_nmi(struct kvm_vcpu *vcpu)
 		dr6 = vmx_get_exit_qual(vcpu);
 		if (!(vcpu->guest_debug &
 		      (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))) {
+			/*
+			 * If the #DB was due to ICEBP, a.k.a. INT1, skip the
+			 * instruction.  ICEBP generates a trap-like #DB, but
+			 * despite its interception control being tied to #DB,
+			 * is an instruction intercept, i.e. the VM-Exit occurs
+			 * on the ICEBP itself.  Note, skipping ICEBP also
+			 * clears STI and MOVSS blocking.
+			 *
+			 * For all other #DBs, set vmcs.PENDING_DBG_EXCEPTIONS.BS
+			 * if single-step is enabled in RFLAGS and STI or MOVSS
+			 * blocking is active, as the CPU doesn't set the bit
+			 * on VM-Exit due to #DB interception.  VM-Entry has a
+			 * consistency check that a single-step #DB is pending
+			 * in this scenario as the previous instruction cannot
+			 * have toggled RFLAGS.TF 0=>1 (because STI and POP/MOV
+			 * don't modify RFLAGS), therefore the one instruction
+			 * delay when activating single-step breakpoints must
+			 * have already expired.  Note, the CPU sets/clears BS
+			 * as appropriate for all other VM-Exits types.
+			 */
 			if (is_icebp(intr_info))
 				WARN_ON(!skip_emulated_instruction(vcpu));
+			else if ((vmx_get_rflags(vcpu) & X86_EFLAGS_TF) &&
+				 (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) &
+				  (GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS)))
+				vmcs_writel(GUEST_PENDING_DBG_EXCEPTIONS,
+					    vmcs_readl(GUEST_PENDING_DBG_EXCEPTIONS) | DR6_BS);
 
 			kvm_queue_exception_p(vcpu, DB_VECTOR, dr6);
 			return 1;
-- 
GitLab


From 3f9843f2f65e9c9297d949cc57721cb9ca5947fd Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Wed, 26 Jan 2022 18:14:42 +0100
Subject: [PATCH 3882/4878] riscv: fix build with binutils 2.38

commit 6df2a016c0c8a3d0933ef33dd192ea6606b115e3 upstream.

From version 2.38, binutils default to ISA spec version 20191213. This
means that the csr read/write (csrr*/csrw*) instructions and fence.i
instruction has separated from the `I` extension, become two standalone
extensions: Zicsr and Zifencei. As the kernel uses those instruction,
this causes the following build failure:

  CC      arch/riscv/kernel/vdso/vgettimeofday.o
  <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h: Assembler messages:
  <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
  <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
  <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'
  <<BUILDDIR>>/arch/riscv/include/asm/vdso/gettimeofday.h:71: Error: unrecognized opcode `csrr a5,0xc01'

The fix is to specify those extensions explicitely in -march. However as
older binutils version do not support this, we first need to detect
that.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 226c366072da3..db9505c658eab 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -50,6 +50,12 @@ riscv-march-$(CONFIG_ARCH_RV32I)	:= rv32ima
 riscv-march-$(CONFIG_ARCH_RV64I)	:= rv64ima
 riscv-march-$(CONFIG_FPU)		:= $(riscv-march-y)fd
 riscv-march-$(CONFIG_RISCV_ISA_C)	:= $(riscv-march-y)c
+
+# Newer binutils versions default to ISA spec version 20191213 which moves some
+# instructions from the I extension to the Zicsr and Zifencei extensions.
+toolchain-need-zicsr-zifencei := $(call cc-option-yn, -march=$(riscv-march-y)_zicsr_zifencei)
+riscv-march-$(toolchain-need-zicsr-zifencei) := $(riscv-march-y)_zicsr_zifencei
+
 KBUILD_CFLAGS += -march=$(subst fd,,$(riscv-march-y))
 KBUILD_AFLAGS += -march=$(riscv-march-y)
 
-- 
GitLab


From b217b89e607c9bc384740115a3236ab71fa8833e Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Mon, 27 Dec 2021 13:14:02 -0300
Subject: [PATCH 3883/4878] ARM: dts: imx23-evk: Remove MX23_PAD_SSP1_DETECT
 from hog group

commit 42c9b28e6862d16db82a56f5667cf4d1f6658cf6 upstream.

Currently, SD card fails to mount due to the following pinctrl error:

[   11.170000] imx23-pinctrl 80018000.pinctrl: pin SSP1_DETECT already requested by 80018000.pinctrl; cannot claim for 80010000.spi
[   11.180000] imx23-pinctrl 80018000.pinctrl: pin-65 (80010000.spi) status -22
[   11.190000] imx23-pinctrl 80018000.pinctrl: could not request pin 65 (SSP1_DETECT) from group mmc0-pins-fixup.0  on device 80018000.pinctrl
[   11.200000] mxs-mmc 80010000.spi: Error applying setting, reverse things back

Fix it by removing the MX23_PAD_SSP1_DETECT pin from the hog group as it
is already been used by the mmc0-pins-fixup pinctrl group.

With this change the rootfs can be mounted and the imx23-evk board can
boot successfully.

Cc: <stable@vger.kernel.org>
Fixes: bc3875f1a61e ("ARM: dts: mxs: modify mx23/mx28 dts files to use pinctrl headers")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/imx23-evk.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index 8cbaf1c811745..3b609d987d883 100644
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -79,7 +79,6 @@
 						MX23_PAD_LCD_RESET__GPIO_1_18
 						MX23_PAD_PWM3__GPIO_1_29
 						MX23_PAD_PWM4__GPIO_1_30
-						MX23_PAD_SSP1_DETECT__SSP1_DETECT
 					>;
 					fsl,drive-strength = <MXS_DRIVE_4mA>;
 					fsl,voltage = <MXS_VOLTAGE_HIGH>;
-- 
GitLab


From 435e62d5666a7909e3f5e5cfbdef5c94eed8430e Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 6 Feb 2022 00:53:12 +0100
Subject: [PATCH 3884/4878] ARM: dts: Fix boot regression on Skomer

commit d9058d6a0e92d8e4a00855f8fe204792f42794db upstream.

The signal routing on the Skomer board was incorrect making
it impossible to mount root from the SD card. Fix this up.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Cc: Stefan Hansson <newbyte@disroot.org>
Link: https://lore.kernel.org/r/20220205235312.446730-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/ste-ux500-samsung-skomer.dts | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
index 08bddbf0336da..446d93c1c7824 100644
--- a/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
+++ b/arch/arm/boot/dts/ste-ux500-samsung-skomer.dts
@@ -154,10 +154,6 @@
 			cap-sd-highspeed;
 			cap-mmc-highspeed;
 			/* All direction control is used */
-			st,sig-dir-cmd;
-			st,sig-dir-dat0;
-			st,sig-dir-dat2;
-			st,sig-dir-dat31;
 			st,sig-pin-fbclk;
 			full-pwr-cycle;
 			vmmc-supply = <&ab8500_ldo_aux3_reg>;
-- 
GitLab


From 3a669d77e5b34866a17ea1e5204fc635fd8813f7 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Date: Mon, 7 Feb 2022 09:44:04 +0100
Subject: [PATCH 3885/4878] ARM: socfpga: fix missing RESET_CONTROLLER

commit 3037b174b1876aae6b2d1a27a878c681c78ccadc upstream.

The SocFPGA machine since commit b3ca9888f35f ("reset: socfpga: add an
early reset driver for SoCFPGA") uses reset controller, so it should
select RESET_CONTROLLER explicitly.  Selecting ARCH_HAS_RESET_CONTROLLER
is not enough because it affects only default choice still allowing a
non-buildable configuration:

  /usr/bin/arm-linux-gnueabi-ld: arch/arm/mach-socfpga/socfpga.o: in function `socfpga_init_irq':
  arch/arm/mach-socfpga/socfpga.c:56: undefined reference to `socfpga_reset_init'

Reported-by: kernel test robot <lkp@intel.com>
Cc: <stable@vger.kernel.org>
Fixes: b3ca9888f35f ("reset: socfpga: add an early reset driver for SoCFPGA")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mach-socfpga/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig
index c3bb68d57cea2..b62ae4dafa2eb 100644
--- a/arch/arm/mach-socfpga/Kconfig
+++ b/arch/arm/mach-socfpga/Kconfig
@@ -2,6 +2,7 @@
 menuconfig ARCH_SOCFPGA
 	bool "Altera SOCFPGA family"
 	depends on ARCH_MULTI_V7
+	select ARCH_HAS_RESET_CONTROLLER
 	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARM_AMBA
 	select ARM_GIC
@@ -18,6 +19,7 @@ menuconfig ARCH_SOCFPGA
 	select PL310_ERRATA_727915
 	select PL310_ERRATA_753970 if PL310
 	select PL310_ERRATA_769419
+	select RESET_CONTROLLER
 
 if ARCH_SOCFPGA
 config SOCFPGA_SUSPEND
-- 
GitLab


From 57ede0ce65000279ebc706e9ec5f770dc11d2801 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagi@grimberg.me>
Date: Mon, 7 Feb 2022 00:40:13 +0200
Subject: [PATCH 3886/4878] nvme-tcp: fix bogus request completion when failing
 to send AER

commit 63573807b27e0faf8065a28b1bbe1cbfb23c0130 upstream.

AER is not backed by a real request, hence we should not incorrectly
assume that when failing to send a nvme command, it is a normal request
but rather check if this is an aer and if so complete the aer (similar
to the normal completion path).

Cc: stable@vger.kernel.org
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/nvme/host/tcp.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index e99d439894187..662028d7a1c6a 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -904,7 +904,15 @@ static inline void nvme_tcp_done_send_req(struct nvme_tcp_queue *queue)
 
 static void nvme_tcp_fail_request(struct nvme_tcp_request *req)
 {
-	nvme_tcp_end_request(blk_mq_rq_from_pdu(req), NVME_SC_HOST_PATH_ERROR);
+	if (nvme_tcp_async_req(req)) {
+		union nvme_result res = {};
+
+		nvme_complete_async_event(&req->queue->ctrl->ctrl,
+				cpu_to_le16(NVME_SC_HOST_PATH_ERROR), &res);
+	} else {
+		nvme_tcp_end_request(blk_mq_rq_from_pdu(req),
+				NVME_SC_HOST_PATH_ERROR);
+	}
 }
 
 static int nvme_tcp_try_send_data(struct nvme_tcp_request *req)
-- 
GitLab


From fcbac51a64d35711e7a1dd1d17bfc975a368597b Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Thu, 3 Feb 2022 19:31:24 +0000
Subject: [PATCH 3887/4878] ACPI/IORT: Check node revision for PMCG resources

commit da5fb9e1ad3fbf632dce735f1bdad257ca528499 upstream.

The original version of the IORT PMCG definition had an oversight
wherein there was no way to describe the second register page for an
implementation using the recommended RELOC_CTRS feature. Although the
spec was fixed, and the final patches merged to ACPICA and Linux written
against the new version, it seems that some old firmware based on the
original revision has survived and turned up in the wild.

Add a check for the original PMCG definition, and avoid filling in the
second memory resource with nonsense if so. Otherwise it is likely that
something horrible will happen when the PMCG driver attempts to probe.

Reported-by: Michael Petlan <mpetlan@redhat.com>
Fixes: 24e516049360 ("ACPI/IORT: Add support for PMCG")
Cc: <stable@vger.kernel.org> # 5.2.x
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/75628ae41c257fb73588f7bf1c4459160e04be2b.1643916258.git.robin.murphy@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/arm64/iort.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 2494138a6905e..50ed949dc1449 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -1454,9 +1454,17 @@ static void __init arm_smmu_v3_pmcg_init_resources(struct resource *res,
 	res[0].start = pmcg->page0_base_address;
 	res[0].end = pmcg->page0_base_address + SZ_4K - 1;
 	res[0].flags = IORESOURCE_MEM;
-	res[1].start = pmcg->page1_base_address;
-	res[1].end = pmcg->page1_base_address + SZ_4K - 1;
-	res[1].flags = IORESOURCE_MEM;
+	/*
+	 * The initial version in DEN0049C lacked a way to describe register
+	 * page 1, which makes it broken for most PMCG implementations; in
+	 * that case, just let the driver fail gracefully if it expects to
+	 * find a second memory resource.
+	 */
+	if (node->revision > 0) {
+		res[1].start = pmcg->page1_base_address;
+		res[1].end = pmcg->page1_base_address + SZ_4K - 1;
+		res[1].flags = IORESOURCE_MEM;
+	}
 
 	if (pmcg->overflow_gsiv)
 		acpi_iort_register_irq(pmcg->overflow_gsiv, "overflow",
-- 
GitLab


From a941384fba3f1b14965be38c3351af78999307b7 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 4 Feb 2022 18:35:22 +0100
Subject: [PATCH 3888/4878] PM: s2idle: ACPI: Fix wakeup interrupts handling

commit cb1f65c1e1424a4b5e4a86da8aa3b8fd8459c8ec upstream.

After commit e3728b50cd9b ("ACPI: PM: s2idle: Avoid possible race
related to the EC GPE") wakeup interrupts occurring immediately after
the one discarded by acpi_s2idle_wake() may be missed.  Moreover, if
the SCI triggers again immediately after the rearming in
acpi_s2idle_wake(), that wakeup may be missed too.

The problem is that pm_system_irq_wakeup() only calls pm_system_wakeup()
when pm_wakeup_irq is 0, but that's not the case any more after the
interrupt causing acpi_s2idle_wake() to run until pm_wakeup_irq is
cleared by the pm_wakeup_clear() call in s2idle_loop().  However,
there may be wakeup interrupts occurring in that time frame and if
that happens, they will be missed.

To address that issue first move the clearing of pm_wakeup_irq to
the point at which it is known that the interrupt causing
acpi_s2idle_wake() to tun will be discarded, before rearming the SCI
for wakeup.  Moreover, because that only reduces the size of the
time window in which the issue may manifest itself, allow
pm_system_irq_wakeup() to register two second wakeup interrupts in
a row and, when discarding the first one, replace it with the second
one.  [Of course, this assumes that only one wakeup interrupt can be
discarded in one go, but currently that is the case and I am not
aware of any plans to change that.]

Fixes: e3728b50cd9b ("ACPI: PM: s2idle: Avoid possible race related to the EC GPE")
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/sleep.c        |  1 +
 drivers/base/power/wakeup.c | 41 ++++++++++++++++++++++++++++++-------
 include/linux/suspend.h     |  4 ++--
 kernel/power/main.c         |  5 ++++-
 kernel/power/process.c      |  2 +-
 kernel/power/suspend.c      |  2 --
 6 files changed, 42 insertions(+), 13 deletions(-)

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 31c9d0c8ae11f..503935b1deeb1 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -1040,6 +1040,7 @@ static bool acpi_s2idle_wake(void)
 			return true;
 		}
 
+		pm_wakeup_clear(acpi_sci_irq);
 		rearm_wake_irq(acpi_sci_irq);
 	}
 
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 92073ac68473c..8997e0227eb9d 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -34,7 +34,8 @@ suspend_state_t pm_suspend_target_state;
 bool events_check_enabled __read_mostly;
 
 /* First wakeup IRQ seen by the kernel in the last cycle. */
-unsigned int pm_wakeup_irq __read_mostly;
+static unsigned int wakeup_irq[2] __read_mostly;
+static DEFINE_RAW_SPINLOCK(wakeup_irq_lock);
 
 /* If greater than 0 and the system is suspending, terminate the suspend. */
 static atomic_t pm_abort_suspend __read_mostly;
@@ -941,19 +942,45 @@ void pm_system_cancel_wakeup(void)
 	atomic_dec_if_positive(&pm_abort_suspend);
 }
 
-void pm_wakeup_clear(bool reset)
+void pm_wakeup_clear(unsigned int irq_number)
 {
-	pm_wakeup_irq = 0;
-	if (reset)
+	raw_spin_lock_irq(&wakeup_irq_lock);
+
+	if (irq_number && wakeup_irq[0] == irq_number)
+		wakeup_irq[0] = wakeup_irq[1];
+	else
+		wakeup_irq[0] = 0;
+
+	wakeup_irq[1] = 0;
+
+	raw_spin_unlock_irq(&wakeup_irq_lock);
+
+	if (!irq_number)
 		atomic_set(&pm_abort_suspend, 0);
 }
 
 void pm_system_irq_wakeup(unsigned int irq_number)
 {
-	if (pm_wakeup_irq == 0) {
-		pm_wakeup_irq = irq_number;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&wakeup_irq_lock, flags);
+
+	if (wakeup_irq[0] == 0)
+		wakeup_irq[0] = irq_number;
+	else if (wakeup_irq[1] == 0)
+		wakeup_irq[1] = irq_number;
+	else
+		irq_number = 0;
+
+	raw_spin_unlock_irqrestore(&wakeup_irq_lock, flags);
+
+	if (irq_number)
 		pm_system_wakeup();
-	}
+}
+
+unsigned int pm_wakeup_irq(void)
+{
+	return wakeup_irq[0];
 }
 
 /**
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index c1310c571d805..4bcd65679cee0 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -496,14 +496,14 @@ extern void ksys_sync_helper(void);
 
 /* drivers/base/power/wakeup.c */
 extern bool events_check_enabled;
-extern unsigned int pm_wakeup_irq;
 extern suspend_state_t pm_suspend_target_state;
 
 extern bool pm_wakeup_pending(void);
 extern void pm_system_wakeup(void);
 extern void pm_system_cancel_wakeup(void);
-extern void pm_wakeup_clear(bool reset);
+extern void pm_wakeup_clear(unsigned int irq_number);
 extern void pm_system_irq_wakeup(unsigned int irq_number);
+extern unsigned int pm_wakeup_irq(void);
 extern bool pm_get_wakeup_count(unsigned int *count, bool block);
 extern bool pm_save_wakeup_count(unsigned int count);
 extern void pm_wakep_autosleep_enabled(bool set);
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 0aefd6f57e0ac..d6140ed15d0b1 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -504,7 +504,10 @@ static ssize_t pm_wakeup_irq_show(struct kobject *kobj,
 					struct kobj_attribute *attr,
 					char *buf)
 {
-	return pm_wakeup_irq ? sprintf(buf, "%u\n", pm_wakeup_irq) : -ENODATA;
+	if (!pm_wakeup_irq())
+		return -ENODATA;
+
+	return sprintf(buf, "%u\n", pm_wakeup_irq());
 }
 
 power_attr_ro(pm_wakeup_irq);
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 45b054b7b5ec8..b9faa363c46af 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -134,7 +134,7 @@ int freeze_processes(void)
 	if (!pm_freezing)
 		atomic_inc(&system_freezing_cnt);
 
-	pm_wakeup_clear(true);
+	pm_wakeup_clear(0);
 	pr_info("Freezing user space processes ... ");
 	pm_freezing = true;
 	error = try_to_freeze_tasks(true);
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 32391acc806bf..4aa4d5d3947f1 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -138,8 +138,6 @@ static void s2idle_loop(void)
 			break;
 		}
 
-		pm_wakeup_clear(false);
-
 		s2idle_enter();
 	}
 
-- 
GitLab


From c943a297ec3c71b01c004258aa3957517f1519eb Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Wed, 19 Jan 2022 16:11:22 -0800
Subject: [PATCH 3889/4878] drm/rockchip: vop: Correct RK3399 VOP register
 fields

commit 9da1e9ab82c92d0e89fe44cad2cd7c2d18d64070 upstream.

Commit 7707f7227f09 ("drm/rockchip: Add support for afbc") switched up
the rk3399_vop_big[] register windows, but it did so incorrectly.

The biggest problem is in rk3288_win23_data[] vs.
rk3368_win23_data[] .format field:

  RK3288's format: VOP_REG(RK3288_WIN2_CTRL0, 0x7, 1)
  RK3368's format: VOP_REG(RK3368_WIN2_CTRL0, 0x3, 5)

Bits 5:6 (i.e., shift 5, mask 0x3) are correct for RK3399, according to
the TRM.

There are a few other small differences between the 3288 and 3368
definitions that were swapped in commit 7707f7227f09. I reviewed them to
the best of my ability according to the RK3399 TRM and fixed them up.

This fixes IOMMU issues (and display errors) when testing with BG24
color formats.

Fixes: 7707f7227f09 ("drm/rockchip: Add support for afbc")
Cc: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Tested-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220119161104.1.I1d01436bef35165a8cdfe9308789c0badb5ff46a@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
index a6fe03c3748aa..39e1e1ebea928 100644
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -873,6 +873,7 @@ static const struct vop_win_phy rk3399_win01_data = {
 	.enable = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 0),
 	.format = VOP_REG(RK3288_WIN0_CTRL0, 0x7, 1),
 	.rb_swap = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 12),
+	.x_mir_en = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 21),
 	.y_mir_en = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 22),
 	.act_info = VOP_REG(RK3288_WIN0_ACT_INFO, 0x1fff1fff, 0),
 	.dsp_info = VOP_REG(RK3288_WIN0_DSP_INFO, 0x0fff0fff, 0),
@@ -883,6 +884,7 @@ static const struct vop_win_phy rk3399_win01_data = {
 	.uv_vir = VOP_REG(RK3288_WIN0_VIR, 0x3fff, 16),
 	.src_alpha_ctl = VOP_REG(RK3288_WIN0_SRC_ALPHA_CTRL, 0xff, 0),
 	.dst_alpha_ctl = VOP_REG(RK3288_WIN0_DST_ALPHA_CTRL, 0xff, 0),
+	.channel = VOP_REG(RK3288_WIN0_CTRL2, 0xff, 0),
 };
 
 /*
@@ -893,11 +895,11 @@ static const struct vop_win_phy rk3399_win01_data = {
 static const struct vop_win_data rk3399_vop_win_data[] = {
 	{ .base = 0x00, .phy = &rk3399_win01_data,
 	  .type = DRM_PLANE_TYPE_PRIMARY },
-	{ .base = 0x40, .phy = &rk3288_win01_data,
+	{ .base = 0x40, .phy = &rk3368_win01_data,
 	  .type = DRM_PLANE_TYPE_OVERLAY },
-	{ .base = 0x00, .phy = &rk3288_win23_data,
+	{ .base = 0x00, .phy = &rk3368_win23_data,
 	  .type = DRM_PLANE_TYPE_OVERLAY },
-	{ .base = 0x50, .phy = &rk3288_win23_data,
+	{ .base = 0x50, .phy = &rk3368_win23_data,
 	  .type = DRM_PLANE_TYPE_CURSOR },
 };
 
-- 
GitLab


From 88f0e61354f4dc057a51651ec59935fd979d3bc3 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 25 Nov 2021 16:48:34 +0200
Subject: [PATCH 3890/4878] ARM: dts: Fix timer regression for beagleboard
 revision c

[ Upstream commit 23885389dbbbbc698986e77a45c1fc44a6e3632e ]

Commit e428e250fde6 ("ARM: dts: Configure system timers for omap3")
caused a timer regression for beagleboard revision c where the system
clockevent stops working if omap3isp module is unloaded.

Turns out we still have beagleboard revisions a-b4 capacitor c70 quirks
applied that limit the usable timers for no good reason. This also affects
the power management as we use the system clock instead of the 32k clock
source.

Let's fix the issue by adding a new omap3-beagle-ab4.dts for the old timer
quirks. This allows us to remove the timer quirks for later beagleboard
revisions. We also need to update the related timer quirk check for the
correct compatible property.

Fixes: e428e250fde6 ("ARM: dts: Configure system timers for omap3")
Cc: linux-kernel@vger.kernel.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Reported-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Tested-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../devicetree/bindings/arm/omap/omap.txt     |  3 ++
 arch/arm/boot/dts/Makefile                    |  1 +
 arch/arm/boot/dts/omap3-beagle-ab4.dts        | 47 +++++++++++++++++++
 arch/arm/boot/dts/omap3-beagle.dts            | 33 -------------
 drivers/clocksource/timer-ti-dm-systimer.c    |  2 +-
 5 files changed, 52 insertions(+), 34 deletions(-)
 create mode 100644 arch/arm/boot/dts/omap3-beagle-ab4.dts

diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index e77635c5422c6..fa8b31660cadd 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -119,6 +119,9 @@ Boards (incomplete list of examples):
 - OMAP3 BeagleBoard : Low cost community board
   compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
 
+- OMAP3 BeagleBoard A to B4 : Early BeagleBoard revisions A to B4 with a timer quirk
+  compatible = "ti,omap3-beagle-ab4", "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
+
 - OMAP3 Tobi with Overo : Commercial expansion board with daughter board
   compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3430", "ti,omap3"
 
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index ce66ffd5a1bbc..7e8151681597c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -731,6 +731,7 @@ dtb-$(CONFIG_ARCH_OMAP3) += \
 	logicpd-som-lv-37xx-devkit.dtb \
 	omap3430-sdp.dtb \
 	omap3-beagle.dtb \
+	omap3-beagle-ab4.dtb \
 	omap3-beagle-xm.dtb \
 	omap3-beagle-xm-ab.dtb \
 	omap3-cm-t3517.dtb \
diff --git a/arch/arm/boot/dts/omap3-beagle-ab4.dts b/arch/arm/boot/dts/omap3-beagle-ab4.dts
new file mode 100644
index 0000000000000..990ff2d846868
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-beagle-ab4.dts
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/dts-v1/;
+
+#include "omap3-beagle.dts"
+
+/ {
+	model = "TI OMAP3 BeagleBoard A to B4";
+	compatible = "ti,omap3-beagle-ab4", "ti,omap3-beagle", "ti,omap3430", "ti,omap3";
+};
+
+/*
+ * Workaround for capacitor C70 issue, see "Boards revision A and < B5"
+ * section at https://elinux.org/BeagleBoard_Community
+ */
+
+/* Unusable as clocksource because of unreliable oscillator */
+&counter32k {
+	status = "disabled";
+};
+
+/* Unusable as clockevent because of unreliable oscillator, allow to idle */
+&timer1_target {
+	/delete-property/ti,no-reset-on-init;
+	/delete-property/ti,no-idle;
+	timer@0 {
+		/delete-property/ti,timer-alwon;
+	};
+};
+
+/* Preferred always-on timer for clocksource */
+&timer12_target {
+	ti,no-reset-on-init;
+	ti,no-idle;
+	timer@0 {
+		/* Always clocked by secure_32k_fck */
+	};
+};
+
+/* Preferred timer for clockevent */
+&timer2_target {
+	ti,no-reset-on-init;
+	ti,no-idle;
+	timer@0 {
+		assigned-clocks = <&gpt2_fck>;
+		assigned-clock-parents = <&sys_ck>;
+	};
+};
diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index f9f34b8458e91..0548b391334fd 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -304,39 +304,6 @@
 	phys = <0 &hsusb2_phy>;
 };
 
-/* Unusable as clocksource because of unreliable oscillator */
-&counter32k {
-	status = "disabled";
-};
-
-/* Unusable as clockevent because if unreliable oscillator, allow to idle */
-&timer1_target {
-	/delete-property/ti,no-reset-on-init;
-	/delete-property/ti,no-idle;
-	timer@0 {
-		/delete-property/ti,timer-alwon;
-	};
-};
-
-/* Preferred always-on timer for clocksource */
-&timer12_target {
-	ti,no-reset-on-init;
-	ti,no-idle;
-	timer@0 {
-		/* Always clocked by secure_32k_fck */
-	};
-};
-
-/* Preferred timer for clockevent */
-&timer2_target {
-	ti,no-reset-on-init;
-	ti,no-idle;
-	timer@0 {
-		assigned-clocks = <&gpt2_fck>;
-		assigned-clock-parents = <&sys_ck>;
-	};
-};
-
 &twl_gpio {
 	ti,use-leds;
 	/* pullups: BIT(1) */
diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c
index b6f97960d8ee0..5c40ca1d4740e 100644
--- a/drivers/clocksource/timer-ti-dm-systimer.c
+++ b/drivers/clocksource/timer-ti-dm-systimer.c
@@ -241,7 +241,7 @@ static void __init dmtimer_systimer_assign_alwon(void)
 	bool quirk_unreliable_oscillator = false;
 
 	/* Quirk unreliable 32 KiHz oscillator with incomplete dts */
-	if (of_machine_is_compatible("ti,omap3-beagle") ||
+	if (of_machine_is_compatible("ti,omap3-beagle-ab4") ||
 	    of_machine_is_compatible("timll,omap3-devkit8000")) {
 		quirk_unreliable_oscillator = true;
 		counter_32k = -ENODEV;
-- 
GitLab


From 210d70f08100c9d88843b2c457b9d0fd27e5ab3d Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Mon, 27 Dec 2021 19:00:24 +0100
Subject: [PATCH 3891/4878] ARM: dts: meson: Fix the UART compatible strings

[ Upstream commit 5225e1b87432dcf0d0fc3440824b91d04c1d6cc1 ]

The dt-bindings for the UART controller only allow the following values
for Meson6 SoCs:
- "amlogic,meson6-uart", "amlogic,meson-ao-uart"
- "amlogic,meson6-uart"

Use the correct fallback compatible string "amlogic,meson-ao-uart" for
AO UART. Drop the "amlogic,meson-uart" compatible string from the EE
domain UART controllers.

Fixes: ec9b59162fd831 ("ARM: dts: meson6: use stable UART bindings")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211227180026.4068352-2-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/meson.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 7649dd1e0b9ee..c928ae312e19c 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -42,14 +42,14 @@
 			};
 
 			uart_A: serial@84c0 {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart";
 				reg = <0x84c0 0x18>;
 				interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
 			};
 
 			uart_B: serial@84dc {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart";
 				reg = <0x84dc 0x18>;
 				interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
@@ -87,7 +87,7 @@
 			};
 
 			uart_C: serial@8700 {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart";
 				reg = <0x8700 0x18>;
 				interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
@@ -203,7 +203,7 @@
 			};
 
 			uart_AO: serial@4c0 {
-				compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
+				compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart";
 				reg = <0x4c0 0x18>;
 				interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
-- 
GitLab


From 566b558e94297262cb4d58dc67c45ae4bf86a4e2 Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Mon, 27 Dec 2021 19:00:25 +0100
Subject: [PATCH 3892/4878] ARM: dts: meson8: Fix the UART device-tree schema
 validation

[ Upstream commit 57007bfb5469ba31cacf69d52195e8b75f43e32d ]

The dt-bindings for the UART controller only allow the following values
for Meson8 SoCs:
- "amlogic,meson8-uart", "amlogic,meson-ao-uart"
- "amlogic,meson8-uart"

Use the correct fallback compatible string "amlogic,meson-ao-uart" for
AO UART. Drop the "amlogic,meson-uart" compatible string from the EE
domain UART controllers.

Also update the order of the clocks to match the order defined in the
yaml schema.

Fixes: 6ca77502050eff ("ARM: dts: meson8: use stable UART bindings with correct gate clock")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211227180026.4068352-3-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/meson8.dtsi | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index 740a6c816266c..08533116a39ce 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -598,27 +598,27 @@
 };
 
 &uart_AO {
-	compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_CLK81>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8-uart", "amlogic,meson-ao-uart";
+	clocks = <&xtal>, <&clkc CLKID_CLK81>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_A {
-	compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART0>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8-uart";
+	clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_B {
-	compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART1>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8-uart";
+	clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_C {
-	compatible = "amlogic,meson8-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART2>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8-uart";
+	clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &usb0 {
-- 
GitLab


From 74cd5cb2190f1cb424d07be608149833eed27ebf Mon Sep 17 00:00:00 2001
From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Mon, 27 Dec 2021 19:00:26 +0100
Subject: [PATCH 3893/4878] ARM: dts: meson8b: Fix the UART device-tree schema
 validation

[ Upstream commit 3375aa77135f6aeb1107ed839a2050a4118444bc ]

The dt-bindings for the UART controller only allow the following values
for Meson8 SoCs:
- "amlogic,meson8b-uart", "amlogic,meson-ao-uart"
- "amlogic,meson8b-uart"

Use the correct fallback compatible string "amlogic,meson-ao-uart" for
AO UART. Drop the "amlogic,meson-uart" compatible string from the EE
domain UART controllers.

Also update the order of the clocks to match the order defined in the
yaml bindings.

Fixes: b02d6e73f5fc96 ("ARM: dts: meson8b: use stable UART bindings with correct gate clock")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20211227180026.4068352-4-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/meson8b.dtsi | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index 2401cdf5f7511..f6eb7c803174e 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -586,27 +586,27 @@
 };
 
 &uart_AO {
-	compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_CLK81>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8b-uart", "amlogic,meson-ao-uart";
+	clocks = <&xtal>, <&clkc CLKID_CLK81>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_A {
-	compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART0>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8b-uart";
+	clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_B {
-	compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART1>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8b-uart";
+	clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &uart_C {
-	compatible = "amlogic,meson8b-uart", "amlogic,meson-uart";
-	clocks = <&clkc CLKID_CLK81>, <&xtal>, <&clkc CLKID_UART2>;
-	clock-names = "baud", "xtal", "pclk";
+	compatible = "amlogic,meson8b-uart";
+	clocks = <&xtal>, <&clkc CLKID_UART0>, <&clkc CLKID_CLK81>;
+	clock-names = "xtal", "pclk", "baud";
 };
 
 &usb0 {
-- 
GitLab


From 0a7b5e8d8c1e762b0ca0ddfc74fffd584a30722c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Tue, 18 Jan 2022 19:13:37 +0100
Subject: [PATCH 3894/4878] staging: fbtft: Fix error path in
 fbtft_driver_module_init()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 426aca16e903b387a0b0001d62207a745c67cfd3 ]

If registering the platform driver fails, the function must not return
without undoing the spi driver registration first.

Fixes: c296d5f9957c ("staging: fbtft: core support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220118181338.207943-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/fbtft/fbtft.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 76f8c090a8370..06afaa9d505ba 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -332,7 +332,10 @@ static int __init fbtft_driver_module_init(void)                           \
 	ret = spi_register_driver(&fbtft_driver_spi_driver);               \
 	if (ret < 0)                                                       \
 		return ret;                                                \
-	return platform_driver_register(&fbtft_driver_platform_driver);    \
+	ret = platform_driver_register(&fbtft_driver_platform_driver);     \
+	if (ret < 0)                                                       \
+		spi_unregister_driver(&fbtft_driver_spi_driver);           \
+	return ret;                                                        \
 }                                                                          \
 									   \
 static void __exit fbtft_driver_module_exit(void)                          \
-- 
GitLab


From 108868dae2ee352764c3e446450368d4fa4bf3d3 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Sun, 19 Dec 2021 19:42:15 -0300
Subject: [PATCH 3895/4878] ARM: dts: imx6qdl-udoo: Properly describe the SD
 card detect

[ Upstream commit 993d66140f8d1c1853a3b58b77b43b681eb64dee ]

GPIO7_IO00 is used as SD card detect.

Properly describe this in the devicetree.

Fixes: 40cdaa542cf0 ("ARM: dts: imx6q-udoo: Add initial board support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx6qdl-udoo.dtsi | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
index d07d8f83456d2..ccfa8e320be62 100644
--- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
@@ -5,6 +5,8 @@
  * Author: Fabio Estevam <fabio.estevam@freescale.com>
  */
 
+#include <dt-bindings/gpio/gpio.h>
+
 / {
 	aliases {
 		backlight = &backlight;
@@ -226,6 +228,7 @@
 				MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
 				MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
 				MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
+				MX6QDL_PAD_SD3_DAT5__GPIO7_IO00		0x1b0b0
 			>;
 		};
 
@@ -304,7 +307,7 @@
 &usdhc3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc3>;
-	non-removable;
+	cd-gpios = <&gpio7 0 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
 
-- 
GitLab


From 39bf132a6ed584e57a92012afc20d362a3a8f6c9 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Tue, 25 Jan 2022 18:16:00 -0600
Subject: [PATCH 3896/4878] phy: xilinx: zynqmp: Fix bus width setting for
 SGMII

[ Upstream commit 37291f60d0822f191748c2a54ce63b0bc669020f ]

TX_PROT_BUS_WIDTH and RX_PROT_BUS_WIDTH are single registers with
separate bit fields for each lane. The code in xpsgtr_phy_init_sgmii was
not preserving the existing register value for other lanes, so enabling
the PHY in SGMII mode on one lane zeroed out the settings for all other
lanes, causing other PS-GTR peripherals such as USB3 to malfunction.

Use xpsgtr_clr_set to only manipulate the desired bits in the register.

Fixes: 4a33bea00314 ("phy: zynqmp: Add PHY driver for the Xilinx ZynqMP Gigabit Transceiver")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20220126001600.1592218-1-robert.hancock@calian.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/xilinx/phy-zynqmp.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/phy/xilinx/phy-zynqmp.c b/drivers/phy/xilinx/phy-zynqmp.c
index 2b0f921b6ee3d..b8ccac6f31467 100644
--- a/drivers/phy/xilinx/phy-zynqmp.c
+++ b/drivers/phy/xilinx/phy-zynqmp.c
@@ -134,7 +134,8 @@
 #define PROT_BUS_WIDTH_10		0x0
 #define PROT_BUS_WIDTH_20		0x1
 #define PROT_BUS_WIDTH_40		0x2
-#define PROT_BUS_WIDTH_SHIFT		2
+#define PROT_BUS_WIDTH_SHIFT(n)		((n) * 2)
+#define PROT_BUS_WIDTH_MASK(n)		GENMASK((n) * 2 + 1, (n) * 2)
 
 /* Number of GT lanes */
 #define NUM_LANES			4
@@ -443,12 +444,12 @@ static void xpsgtr_phy_init_sata(struct xpsgtr_phy *gtr_phy)
 static void xpsgtr_phy_init_sgmii(struct xpsgtr_phy *gtr_phy)
 {
 	struct xpsgtr_dev *gtr_dev = gtr_phy->dev;
+	u32 mask = PROT_BUS_WIDTH_MASK(gtr_phy->lane);
+	u32 val = PROT_BUS_WIDTH_10 << PROT_BUS_WIDTH_SHIFT(gtr_phy->lane);
 
 	/* Set SGMII protocol TX and RX bus width to 10 bits. */
-	xpsgtr_write(gtr_dev, TX_PROT_BUS_WIDTH,
-		     PROT_BUS_WIDTH_10 << (gtr_phy->lane * PROT_BUS_WIDTH_SHIFT));
-	xpsgtr_write(gtr_dev, RX_PROT_BUS_WIDTH,
-		     PROT_BUS_WIDTH_10 << (gtr_phy->lane * PROT_BUS_WIDTH_SHIFT));
+	xpsgtr_clr_set(gtr_dev, TX_PROT_BUS_WIDTH, mask, val);
+	xpsgtr_clr_set(gtr_dev, RX_PROT_BUS_WIDTH, mask, val);
 
 	xpsgtr_bypass_scrambler_8b10b(gtr_phy);
 }
-- 
GitLab


From 5a37fd9fdcce3829607786f2fd1e14643016cd23 Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Thu, 20 Jan 2022 11:23:55 -0600
Subject: [PATCH 3897/4878] ARM: dts: imx7ulp: Fix 'assigned-clocks-parents'
 typo

[ Upstream commit 6d58c5e21a3fe355ce6d1808e96d02a610265218 ]

The correct property name is 'assigned-clock-parents', not
'assigned-clocks-parents'. Though if the platform works with the typo, one
has to wonder if the property is even needed.

Signed-off-by: Rob Herring <robh@kernel.org>
Fixes: 8b8c7d97e2c7 ("ARM: dts: imx7ulp: Add wdog1 node")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/imx7ulp.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi
index b7ea37ad4e55c..bcec98b964114 100644
--- a/arch/arm/boot/dts/imx7ulp.dtsi
+++ b/arch/arm/boot/dts/imx7ulp.dtsi
@@ -259,7 +259,7 @@
 			interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
 			assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
-			assigned-clocks-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
+			assigned-clock-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
 			timeout-sec = <40>;
 		};
 
-- 
GitLab


From 0042178a69eb77a979e36a50dcce9794a3140ef8 Mon Sep 17 00:00:00 2001
From: Udipto Goswami <quic_ugoswami@quicinc.com>
Date: Thu, 27 Jan 2022 09:39:55 +0530
Subject: [PATCH 3898/4878] usb: f_fs: Fix use-after-free for epfile

[ Upstream commit ebe2b1add1055b903e2acd86b290a85297edc0b3 ]

Consider a case where ffs_func_eps_disable is called from
ffs_func_disable as part of composition switch and at the
same time ffs_epfile_release get called from userspace.
ffs_epfile_release will free up the read buffer and call
ffs_data_closed which in turn destroys ffs->epfiles and
mark it as NULL. While this was happening the driver has
already initialized the local epfile in ffs_func_eps_disable
which is now freed and waiting to acquire the spinlock. Once
spinlock is acquired the driver proceeds with the stale value
of epfile and tries to free the already freed read buffer
causing use-after-free.

Following is the illustration of the race:

      CPU1                                  CPU2

   ffs_func_eps_disable
   epfiles (local copy)
					ffs_epfile_release
					ffs_data_closed
					if (last file closed)
					ffs_data_reset
					ffs_data_clear
					ffs_epfiles_destroy
spin_lock
dereference epfiles

Fix this races by taking epfiles local copy & assigning it under
spinlock and if epfiles(local) is null then update it in ffs->epfiles
then finally destroy it.
Extending the scope further from the race, protecting the ep related
structures, and concurrent accesses.

Fixes: a9e6f83c2df1 ("usb: gadget: f_fs: stop sleeping in ffs_func_eps_disable")
Co-developed-by: Udipto Goswami <quic_ugoswami@quicinc.com>
Reviewed-by: John Keeping <john@metanate.com>
Signed-off-by: Pratham Pratap <quic_ppratap@quicinc.com>
Signed-off-by: Udipto Goswami <quic_ugoswami@quicinc.com>
Link: https://lore.kernel.org/r/1643256595-10797-1-git-send-email-quic_ugoswami@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/function/f_fs.c | 56 ++++++++++++++++++++++--------
 1 file changed, 42 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index d8652321e15e9..bb0d92837f677 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1710,16 +1710,24 @@ static void ffs_data_put(struct ffs_data *ffs)
 
 static void ffs_data_closed(struct ffs_data *ffs)
 {
+	struct ffs_epfile *epfiles;
+	unsigned long flags;
+
 	ENTER();
 
 	if (atomic_dec_and_test(&ffs->opened)) {
 		if (ffs->no_disconnect) {
 			ffs->state = FFS_DEACTIVATED;
-			if (ffs->epfiles) {
-				ffs_epfiles_destroy(ffs->epfiles,
-						   ffs->eps_count);
-				ffs->epfiles = NULL;
-			}
+			spin_lock_irqsave(&ffs->eps_lock, flags);
+			epfiles = ffs->epfiles;
+			ffs->epfiles = NULL;
+			spin_unlock_irqrestore(&ffs->eps_lock,
+							flags);
+
+			if (epfiles)
+				ffs_epfiles_destroy(epfiles,
+						 ffs->eps_count);
+
 			if (ffs->setup_state == FFS_SETUP_PENDING)
 				__ffs_ep0_stall(ffs);
 		} else {
@@ -1766,14 +1774,27 @@ static struct ffs_data *ffs_data_new(const char *dev_name)
 
 static void ffs_data_clear(struct ffs_data *ffs)
 {
+	struct ffs_epfile *epfiles;
+	unsigned long flags;
+
 	ENTER();
 
 	ffs_closed(ffs);
 
 	BUG_ON(ffs->gadget);
 
-	if (ffs->epfiles) {
-		ffs_epfiles_destroy(ffs->epfiles, ffs->eps_count);
+	spin_lock_irqsave(&ffs->eps_lock, flags);
+	epfiles = ffs->epfiles;
+	ffs->epfiles = NULL;
+	spin_unlock_irqrestore(&ffs->eps_lock, flags);
+
+	/*
+	 * potential race possible between ffs_func_eps_disable
+	 * & ffs_epfile_release therefore maintaining a local
+	 * copy of epfile will save us from use-after-free.
+	 */
+	if (epfiles) {
+		ffs_epfiles_destroy(epfiles, ffs->eps_count);
 		ffs->epfiles = NULL;
 	}
 
@@ -1921,12 +1942,15 @@ static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count)
 
 static void ffs_func_eps_disable(struct ffs_function *func)
 {
-	struct ffs_ep *ep         = func->eps;
-	struct ffs_epfile *epfile = func->ffs->epfiles;
-	unsigned count            = func->ffs->eps_count;
+	struct ffs_ep *ep;
+	struct ffs_epfile *epfile;
+	unsigned short count;
 	unsigned long flags;
 
 	spin_lock_irqsave(&func->ffs->eps_lock, flags);
+	count = func->ffs->eps_count;
+	epfile = func->ffs->epfiles;
+	ep = func->eps;
 	while (count--) {
 		/* pending requests get nuked */
 		if (likely(ep->ep))
@@ -1944,14 +1968,18 @@ static void ffs_func_eps_disable(struct ffs_function *func)
 
 static int ffs_func_eps_enable(struct ffs_function *func)
 {
-	struct ffs_data *ffs      = func->ffs;
-	struct ffs_ep *ep         = func->eps;
-	struct ffs_epfile *epfile = ffs->epfiles;
-	unsigned count            = ffs->eps_count;
+	struct ffs_data *ffs;
+	struct ffs_ep *ep;
+	struct ffs_epfile *epfile;
+	unsigned short count;
 	unsigned long flags;
 	int ret = 0;
 
 	spin_lock_irqsave(&func->ffs->eps_lock, flags);
+	ffs = func->ffs;
+	ep = func->eps;
+	epfile = ffs->epfiles;
+	count = ffs->eps_count;
 	while(count--) {
 		ep->ep->driver_data = ep;
 
-- 
GitLab


From 70ea005626a941923fece8fcfd471ea1ba295295 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Mon, 31 Jan 2022 11:35:53 +0100
Subject: [PATCH 3899/4878] gpio: aggregator: Fix calling into sleeping GPIO
 controllers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 2cba05451a6d0c703bb74f1a250691404f27c4f1 ]

If the parent GPIO controller is a sleeping controller (e.g. a GPIO
controller connected to I2C), getting or setting a GPIO triggers a
might_sleep() warning.  This happens because the GPIO Aggregator takes
the can_sleep flag into account only for its internal locking, not for
calling into the parent GPIO controller.

Fix this by using the gpiod_[gs]et*_cansleep() APIs when calling into a
sleeping GPIO controller.

Reported-by: Mikko Salomäki <ms@datarespons.se>
Fixes: 828546e24280f721 ("gpio: Add GPIO Aggregator")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-aggregator.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c
index dfd8a4876a27a..d5f25246404d9 100644
--- a/drivers/gpio/gpio-aggregator.c
+++ b/drivers/gpio/gpio-aggregator.c
@@ -330,7 +330,8 @@ static int gpio_fwd_get(struct gpio_chip *chip, unsigned int offset)
 {
 	struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
 
-	return gpiod_get_value(fwd->descs[offset]);
+	return chip->can_sleep ? gpiod_get_value_cansleep(fwd->descs[offset])
+			       : gpiod_get_value(fwd->descs[offset]);
 }
 
 static int gpio_fwd_get_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
@@ -349,7 +350,10 @@ static int gpio_fwd_get_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
 	for_each_set_bit(i, mask, fwd->chip.ngpio)
 		descs[j++] = fwd->descs[i];
 
-	error = gpiod_get_array_value(j, descs, NULL, values);
+	if (fwd->chip.can_sleep)
+		error = gpiod_get_array_value_cansleep(j, descs, NULL, values);
+	else
+		error = gpiod_get_array_value(j, descs, NULL, values);
 	if (error)
 		return error;
 
@@ -384,7 +388,10 @@ static void gpio_fwd_set(struct gpio_chip *chip, unsigned int offset, int value)
 {
 	struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
 
-	gpiod_set_value(fwd->descs[offset], value);
+	if (chip->can_sleep)
+		gpiod_set_value_cansleep(fwd->descs[offset], value);
+	else
+		gpiod_set_value(fwd->descs[offset], value);
 }
 
 static void gpio_fwd_set_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
@@ -403,7 +410,10 @@ static void gpio_fwd_set_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
 		descs[j++] = fwd->descs[i];
 	}
 
-	gpiod_set_array_value(j, descs, NULL, values);
+	if (fwd->chip.can_sleep)
+		gpiod_set_array_value_cansleep(j, descs, NULL, values);
+	else
+		gpiod_set_array_value(j, descs, NULL, values);
 }
 
 static void gpio_fwd_set_multiple_locked(struct gpio_chip *chip,
-- 
GitLab


From 21c890ca8eaecea06cabb92be2a53a6f26f56383 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 27 Jan 2022 14:51:16 +0100
Subject: [PATCH 3900/4878] drm/vc4: hdmi: Allow DBLCLK modes even if horz
 timing is odd.

[ Upstream commit 1d118965965f89948236ebe23072bb1fca5e7832 ]

The 2711 pixel valve can't produce odd horizontal timings, and
checks were added to vc4_hdmi_encoder_atomic_check and
vc4_hdmi_encoder_mode_valid to filter out/block selection of
such modes.

Modes with DRM_MODE_FLAG_DBLCLK double all the horizontal timing
values before programming them into the PV. The PV values,
therefore, can not be odd, and so the modes can be supported.

Amend the filtering appropriately.

Fixes: 57fb32e632be ("drm/vc4: hdmi: Block odd horizontal timings")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220127135116.298278-1-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 5d5c4e9a86218..a308f2d05d173 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -800,6 +800,7 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder,
 	unsigned long long tmds_rate;
 
 	if (vc4_hdmi->variant->unsupported_odd_h_timings &&
+	    !(mode->flags & DRM_MODE_FLAG_DBLCLK) &&
 	    ((mode->hdisplay % 2) || (mode->hsync_start % 2) ||
 	     (mode->hsync_end % 2) || (mode->htotal % 2)))
 		return -EINVAL;
@@ -834,6 +835,7 @@ vc4_hdmi_encoder_mode_valid(struct drm_encoder *encoder,
 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
 
 	if (vc4_hdmi->variant->unsupported_odd_h_timings &&
+	    !(mode->flags & DRM_MODE_FLAG_DBLCLK) &&
 	    ((mode->hdisplay % 2) || (mode->hsync_start % 2) ||
 	     (mode->hsync_end % 2) || (mode->htotal % 2)))
 		return MODE_H_ILLEGAL;
-- 
GitLab


From a5ce7ee5fcc07583159f54ab4af5164de00148f5 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@grsecurity.net>
Date: Thu, 27 Jan 2022 14:02:18 +0100
Subject: [PATCH 3901/4878] misc: fastrpc: avoid double fput() on failed
 usercopy
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 46963e2e0629cb31c96b1d47ddd89dc3d8990b34 ]

If the copy back to userland fails for the FASTRPC_IOCTL_ALLOC_DMA_BUFF
ioctl(), we shouldn't assume that 'buf->dmabuf' is still valid. In fact,
dma_buf_fd() called fd_install() before, i.e. "consumed" one reference,
leaving us with none.

Calling dma_buf_put() will therefore put a reference we no longer own,
leading to a valid file descritor table entry for an already released
'file' object which is a straight use-after-free.

Simply avoid calling dma_buf_put() and rely on the process exit code to
do the necessary cleanup, if needed, i.e. if the file descriptor is
still valid.

Fixes: 6cffd79504ce ("misc: fastrpc: Add support for dmabuf exporter")
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Link: https://lore.kernel.org/r/20220127130218.809261-1-minipli@grsecurity.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/fastrpc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index ef49ac8d91019..d0471fec37fbb 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1284,7 +1284,14 @@ static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, char __user *argp)
 	}
 
 	if (copy_to_user(argp, &bp, sizeof(bp))) {
-		dma_buf_put(buf->dmabuf);
+		/*
+		 * The usercopy failed, but we can't do much about it, as
+		 * dma_buf_fd() already called fd_install() and made the
+		 * file descriptor accessible for the current process. It
+		 * might already be closed and dmabuf no longer valid when
+		 * we reach this point. Therefore "leak" the fd and rely on
+		 * the process exit path to do any required cleanup.
+		 */
 		return -EFAULT;
 	}
 
-- 
GitLab


From 04fe6569a7cfb1040a0f41b9e2a0d89d7f2d8529 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Wed, 2 Feb 2022 12:00:56 +0100
Subject: [PATCH 3902/4878] netfilter: ctnetlink: disable helper autoassign

[ Upstream commit d1ca60efc53d665cf89ed847a14a510a81770b81 ]

When userspace, e.g. conntrackd, inserts an entry with a specified helper,
its possible that the helper is lost immediately after its added:

ctnetlink_create_conntrack
  -> nf_ct_helper_ext_add + assign helper
    -> ctnetlink_setup_nat
      -> ctnetlink_parse_nat_setup
         -> parse_nat_setup -> nfnetlink_parse_nat_setup
	                       -> nf_nat_setup_info
                                 -> nf_conntrack_alter_reply
                                   -> __nf_ct_try_assign_helper

... and __nf_ct_try_assign_helper will zero the helper again.

Set IPS_HELPER bit to bypass auto-assign logic, its unwanted, just like
when helper is assigned via ruleset.

Dropped old 'not strictly necessary' comment, it referred to use of
rcu_assign_pointer() before it got replaced by RCU_INIT_POINTER().

NB: Fixes tag intentionally incorrect, this extends the referenced commit,
but this change won't build without IPS_HELPER introduced there.

Fixes: 6714cf5465d280 ("netfilter: nf_conntrack: fix explicit helper attachment and NAT")
Reported-by: Pham Thanh Tuyen <phamtyn@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/netfilter/nf_conntrack_common.h | 2 +-
 net/netfilter/nf_conntrack_netlink.c               | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
index 4b3395082d15c..26071021e986f 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
@@ -106,7 +106,7 @@ enum ip_conntrack_status {
 	IPS_NAT_CLASH = IPS_UNTRACKED,
 #endif
 
-	/* Conntrack got a helper explicitly attached via CT target. */
+	/* Conntrack got a helper explicitly attached (ruleset, ctnetlink). */
 	IPS_HELPER_BIT = 13,
 	IPS_HELPER = (1 << IPS_HELPER_BIT),
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index c6bcc28ae3387..eeeaa34b3e7b5 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -2283,7 +2283,8 @@ ctnetlink_create_conntrack(struct net *net,
 			if (helper->from_nlattr)
 				helper->from_nlattr(helpinfo, ct);
 
-			/* not in hash table yet so not strictly necessary */
+			/* disable helper auto-assignment for this entry */
+			ct->status |= IPS_HELPER;
 			RCU_INIT_POINTER(help->helper, helper);
 		}
 	} else {
-- 
GitLab


From e5a64f548a45be007feee22a85f1cf837bae7c95 Mon Sep 17 00:00:00 2001
From: Dongjin Kim <tobetter@gmail.com>
Date: Thu, 27 Jan 2022 21:29:25 +0900
Subject: [PATCH 3903/4878] arm64: dts: meson-g12b-odroid-n2: fix typo
 'dio2133'

[ Upstream commit bc41099f060ea74ac8d02c51bd0f5f46d969bedf ]

Typo in audio amplifier node, dioo2133 -> dio2133

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Fixes: ef599f5f3e10 ("arm64: dts: meson: convert ODROID-N2 to dtsi")
Fixes: 67d141c1f8e6 ("arm64: dts: meson: odroid-n2: add jack audio output support")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/YfKQJejh0bfGYvof@anyang
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
index b9b8cd4b5ba9d..87e8e64ad5cae 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
@@ -15,7 +15,7 @@
 		ethernet0 = &ethmac;
 	};
 
-	dioo2133: audio-amplifier-0 {
+	dio2133: audio-amplifier-0 {
 		compatible = "simple-audio-amplifier";
 		enable-gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>;
 		VCC-supply = <&vcc_5v>;
@@ -215,7 +215,7 @@
 		audio-widgets = "Line", "Lineout";
 		audio-aux-devs = <&tdmout_b>, <&tdmout_c>, <&tdmin_a>,
 				 <&tdmin_b>, <&tdmin_c>, <&tdmin_lb>,
-				 <&dioo2133>;
+				 <&dio2133>;
 		audio-routing = "TDMOUT_B IN 0", "FRDDR_A OUT 1",
 				"TDMOUT_B IN 1", "FRDDR_B OUT 1",
 				"TDMOUT_B IN 2", "FRDDR_C OUT 1",
-- 
GitLab


From bf35639192edb579db08828873903ba50072dbcb Mon Sep 17 00:00:00 2001
From: Samuel Mendoza-Jonas <samjonas@amazon.com>
Date: Thu, 3 Feb 2022 14:49:16 -0800
Subject: [PATCH 3904/4878] ixgbevf: Require large buffers for build_skb on
 82599VF

[ Upstream commit fe68195daf34d5dddacd3f93dd3eafc4beca3a0e ]

From 4.17 onwards the ixgbevf driver uses build_skb() to build an skb
around new data in the page buffer shared with the ixgbe PF.
This uses either a 2K or 3K buffer, and offsets the DMA mapping by
NET_SKB_PAD + NET_IP_ALIGN. When using a smaller buffer RXDCTL is set to
ensure the PF does not write a full 2K bytes into the buffer, which is
actually 2K minus the offset.

However on the 82599 virtual function, the RXDCTL mechanism is not
available. The driver attempts to work around this by using the SET_LPE
mailbox method to lower the maximm frame size, but the ixgbe PF driver
ignores this in order to keep the PF and all VFs in sync[0].

This means the PF will write up to the full 2K set in SRRCTL, causing it
to write NET_SKB_PAD + NET_IP_ALIGN bytes past the end of the buffer.
With 4K pages split into two buffers, this means it either writes
NET_SKB_PAD + NET_IP_ALIGN bytes past the first buffer (and into the
second), or NET_SKB_PAD + NET_IP_ALIGN bytes past the end of the DMA
mapping.

Avoid this by only enabling build_skb when using "large" buffers (3K).
These are placed in each half of an order-1 page, preventing the PF from
writing past the end of the mapping.

[0]: Technically it only ever raises the max frame size, see
ixgbe_set_vf_lpe() in ixgbe_sriov.c

Fixes: f15c5ba5b6cd ("ixgbevf: add support for using order 1 pages to receive large frames")
Signed-off-by: Samuel Mendoza-Jonas <samjonas@amazon.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a7d0a459969a2..2d6ac61d7a3e6 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1992,14 +1992,15 @@ static void ixgbevf_set_rx_buffer_len(struct ixgbevf_adapter *adapter,
 	if (adapter->flags & IXGBEVF_FLAGS_LEGACY_RX)
 		return;
 
-	set_ring_build_skb_enabled(rx_ring);
+	if (PAGE_SIZE < 8192)
+		if (max_frame > IXGBEVF_MAX_FRAME_BUILD_SKB)
+			set_ring_uses_large_buffer(rx_ring);
 
-	if (PAGE_SIZE < 8192) {
-		if (max_frame <= IXGBEVF_MAX_FRAME_BUILD_SKB)
-			return;
+	/* 82599 can't rely on RXDCTL.RLPML to restrict the size of the frame */
+	if (adapter->hw.mac.type == ixgbe_mac_82599_vf && !ring_uses_large_buffer(rx_ring))
+		return;
 
-		set_ring_uses_large_buffer(rx_ring);
-	}
+	set_ring_build_skb_enabled(rx_ring);
 }
 
 /**
-- 
GitLab


From 3b72d3f0205ed88bc1e1029022e88b9754f67759 Mon Sep 17 00:00:00 2001
From: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Date: Tue, 1 Feb 2022 12:01:53 +0100
Subject: [PATCH 3905/4878] drm/panel: simple: Assign data from
 panel_dpi_probe() correctly

[ Upstream commit 6df4432a5eca101b5fd80fbee41d309f3d67928d ]

In the function panel_simple_probe() the pointer panel->desc is
assigned to the passed pointer desc. If function panel_dpi_probe()
is called panel->desc will be updated, but further on only desc
will be evaluated. So update the desc pointer to be able to use
the data from the function panel_dpi_probe().

Fixes: 4a1d0dbc8332 ("drm/panel: simple: add panel-dpi support")

Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
To: dri-devel@lists.freedesktop.org
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220201110153.3479-1-cniedermaier@dh-electronics.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/panel/panel-simple.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 204674fccd646..7ffd2a04ab23a 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -557,6 +557,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
 		err = panel_dpi_probe(dev, panel);
 		if (err)
 			goto free_ddc;
+		desc = panel->desc;
 	} else {
 		if (!of_get_display_timing(dev->of_node, "panel-timing", &dt))
 			panel_simple_parse_panel_timing_node(dev, panel, &dt);
-- 
GitLab


From 48e413087de1bc688ad732839efc0a5627f38d34 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 4 Feb 2022 18:31:02 +0100
Subject: [PATCH 3906/4878] ACPI: PM: s2idle: Cancel wakeup before dispatching
 EC GPE

[ Upstream commit dc0075ba7f387fe4c48a8c674b11ab6f374a6acc ]

Commit 4a9af6cac050 ("ACPI: EC: Rework flushing of EC work while
suspended to idle") made acpi_ec_dispatch_gpe() check
pm_wakeup_pending(), but that is before canceling the SCI wakeup,
so pm_wakeup_pending() is always true.  This causes the loop in
acpi_ec_dispatch_gpe() to always terminate after one iteration which
may not be correct.

Address this issue by canceling the SCI wakeup earlier, from
acpi_ec_dispatch_gpe() itself.

Fixes: 4a9af6cac050 ("ACPI: EC: Rework flushing of EC work while suspended to idle")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/ec.c    | 10 ++++++++++
 drivers/acpi/sleep.c | 14 ++++----------
 2 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3f2e5ea9ab6b7..8347eaee679c8 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -2064,6 +2064,16 @@ bool acpi_ec_dispatch_gpe(void)
 	if (acpi_any_gpe_status_set(first_ec->gpe))
 		return true;
 
+	/*
+	 * Cancel the SCI wakeup and process all pending events in case there
+	 * are any wakeup ones in there.
+	 *
+	 * Note that if any non-EC GPEs are active at this point, the SCI will
+	 * retrigger after the rearming in acpi_s2idle_wake(), so no events
+	 * should be missed by canceling the wakeup here.
+	 */
+	pm_system_cancel_wakeup();
+
 	/*
 	 * Dispatch the EC GPE in-band, but do not report wakeup in any case
 	 * to allow the caller to process events properly after that.
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 503935b1deeb1..e2614ea820bb8 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -1012,21 +1012,15 @@ static bool acpi_s2idle_wake(void)
 			return true;
 		}
 
-		/* Check non-EC GPE wakeups and dispatch the EC GPE. */
+		/*
+		 * Check non-EC GPE wakeups and if there are none, cancel the
+		 * SCI-related wakeup and dispatch the EC GPE.
+		 */
 		if (acpi_ec_dispatch_gpe()) {
 			pm_pr_dbg("ACPI non-EC GPE wakeup\n");
 			return true;
 		}
 
-		/*
-		 * Cancel the SCI wakeup and process all pending events in case
-		 * there are any wakeup ones in there.
-		 *
-		 * Note that if any non-EC GPEs are active at this point, the
-		 * SCI will retrigger after the rearming below, so no events
-		 * should be missed by canceling the wakeup here.
-		 */
-		pm_system_cancel_wakeup();
 		acpi_os_wait_events_complete();
 
 		/*
-- 
GitLab


From 1ba45dd3266773852570a510020c4e0d695d3b87 Mon Sep 17 00:00:00 2001
From: Niklas Cassel <niklas.cassel@wdc.com>
Date: Fri, 4 Feb 2022 13:02:25 +0000
Subject: [PATCH 3907/4878] gpio: sifive: use the correct register to read
 output values

[ Upstream commit cc38ef936840ac29204d806deb4d1836ec509594 ]

Setting the output of a GPIO to 1 using gpiod_set_value(), followed by
reading the same GPIO using gpiod_get_value(), will currently yield an
incorrect result.

This is because the SiFive GPIO device stores the output values in reg_set,
not reg_dat.

Supply the flag BGPIOF_READ_OUTPUT_REG_SET to bgpio_init() so that the
generic driver reads the correct register.

Fixes: 96868dce644d ("gpio/sifive: Add GPIO driver for SiFive SoCs")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
[Bartosz: added the Fixes tag]
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-sifive.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-sifive.c b/drivers/gpio/gpio-sifive.c
index d5eb9ca119016..4f28fa73450c1 100644
--- a/drivers/gpio/gpio-sifive.c
+++ b/drivers/gpio/gpio-sifive.c
@@ -206,7 +206,7 @@ static int sifive_gpio_probe(struct platform_device *pdev)
 			 NULL,
 			 chip->base + SIFIVE_GPIO_OUTPUT_EN,
 			 chip->base + SIFIVE_GPIO_INPUT_EN,
-			 0);
+			 BGPIOF_READ_OUTPUT_REG_SET);
 	if (ret) {
 		dev_err(dev, "unable to init generic GPIO\n");
 		return ret;
-- 
GitLab


From 4a384c1e4058fd8dd3d7d32eb16505191f5dfb92 Mon Sep 17 00:00:00 2001
From: Mahesh Bandewar <maheshb@google.com>
Date: Mon, 7 Feb 2022 14:29:01 -0800
Subject: [PATCH 3908/4878] bonding: pair enable_port with slave_arr_updates

[ Upstream commit 23de0d7b6f0e3f9a6283a882594c479949da1120 ]

When 803.2ad mode enables a participating port, it should update
the slave-array. I have observed that the member links are participating
and are part of the active aggregator while the traffic is egressing via
only one member link (in a case where two links are participating). Via
kprobes I discovered that slave-arr has only one link added while
the other participating link wasn't part of the slave-arr.

I couldn't see what caused that situation but the simple code-walk
through provided me hints that the enable_port wasn't always associated
with the slave-array update.

Fixes: ee6377147409 ("bonding: Simplify the xmit function for modes that use xmit_hash")
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20220207222901.1795287-1-maheshb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_3ad.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index aa001b16765ae..ab8c833411654 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1003,8 +1003,8 @@ static void ad_mux_machine(struct port *port, bool *update_slave_arr)
 				if (port->aggregator &&
 				    port->aggregator->is_active &&
 				    !__port_is_enabled(port)) {
-
 					__enable_port(port);
+					*update_slave_arr = true;
 				}
 			}
 			break;
@@ -1760,6 +1760,7 @@ static void ad_agg_selection_logic(struct aggregator *agg,
 			     port = port->next_port_in_aggregator) {
 				__enable_port(port);
 			}
+			*update_slave_arr = true;
 		}
 	}
 
-- 
GitLab


From 8ccebe77df6e0d88c72ba5e69cf1835927e53b6c Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 7 Feb 2022 18:15:47 +0200
Subject: [PATCH 3909/4878] net: dsa: mv88e6xxx: don't use devres for mdiobus

[ Upstream commit f53a2ce893b2c7884ef94471f170839170a4eba0 ]

As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")

mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.

The mv88e6xxx is an MDIO device, so the initial set of constraints that
I thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.

If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the Marvell switch driver on shutdown.

systemd-shutdown[1]: Powering off.
mv88e6085 0x0000000008b96000:00 sw_gl0: Link is Down
fsl-mc dpbp.9: Removing from iommu group 7
fsl-mc dpbp.8: Removing from iommu group 7
------------[ cut here ]------------
kernel BUG at drivers/net/phy/mdio_bus.c:677!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.16.5-00040-gdc05f73788e5 #15
pc : mdiobus_free+0x44/0x50
lr : devm_mdiobus_free+0x10/0x20
Call trace:
 mdiobus_free+0x44/0x50
 devm_mdiobus_free+0x10/0x20
 devres_release_all+0xa0/0x100
 __device_release_driver+0x190/0x220
 device_release_driver_internal+0xac/0xb0
 device_links_unbind_consumers+0xd4/0x100
 __device_release_driver+0x4c/0x220
 device_release_driver_internal+0xac/0xb0
 device_links_unbind_consumers+0xd4/0x100
 __device_release_driver+0x94/0x220
 device_release_driver+0x28/0x40
 bus_remove_device+0x118/0x124
 device_del+0x174/0x420
 fsl_mc_device_remove+0x24/0x40
 __fsl_mc_device_remove+0xc/0x20
 device_for_each_child+0x58/0xa0
 dprc_remove+0x90/0xb0
 fsl_mc_driver_remove+0x20/0x5c
 __device_release_driver+0x21c/0x220
 device_release_driver+0x28/0x40
 bus_remove_device+0x118/0x124
 device_del+0x174/0x420
 fsl_mc_bus_remove+0x80/0x100
 fsl_mc_bus_shutdown+0xc/0x1c
 platform_shutdown+0x20/0x30
 device_shutdown+0x154/0x330
 kernel_power_off+0x34/0x6c
 __do_sys_reboot+0x15c/0x250
 __arm64_sys_reboot+0x20/0x30
 invoke_syscall.constprop.0+0x4c/0xe0
 do_el0_svc+0x4c/0x150
 el0_svc+0x24/0xb0
 el0t_64_sync_handler+0xa8/0xb0
 el0t_64_sync+0x178/0x17c

So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.

The Marvell driver already has a good structure for mdiobus removal, so
just plug in mdiobus_free and get rid of devres.

Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Reported-by: Rafael Richter <Rafael.Richter@gin.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Daniel Klauer <daniel.klauer@gin.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index afc5500ef8ed9..9b451b820d7a6 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3072,7 +3072,7 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 			return err;
 	}
 
-	bus = devm_mdiobus_alloc_size(chip->dev, sizeof(*mdio_bus));
+	bus = mdiobus_alloc_size(sizeof(*mdio_bus));
 	if (!bus)
 		return -ENOMEM;
 
@@ -3097,14 +3097,14 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 	if (!external) {
 		err = mv88e6xxx_g2_irq_mdio_setup(chip, bus);
 		if (err)
-			return err;
+			goto out;
 	}
 
 	err = of_mdiobus_register(bus, np);
 	if (err) {
 		dev_err(chip->dev, "Cannot register MDIO bus (%d)\n", err);
 		mv88e6xxx_g2_irq_mdio_free(chip, bus);
-		return err;
+		goto out;
 	}
 
 	if (external)
@@ -3113,6 +3113,10 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip,
 		list_add(&mdio_bus->list, &chip->mdios);
 
 	return 0;
+
+out:
+	mdiobus_free(bus);
+	return err;
 }
 
 static void mv88e6xxx_mdios_unregister(struct mv88e6xxx_chip *chip)
@@ -3128,6 +3132,7 @@ static void mv88e6xxx_mdios_unregister(struct mv88e6xxx_chip *chip)
 			mv88e6xxx_g2_irq_mdio_free(chip, bus);
 
 		mdiobus_unregister(bus);
+		mdiobus_free(bus);
 	}
 }
 
-- 
GitLab


From 475ce5dcf2d88fd4f3c213a0ac944e3e40702970 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 7 Feb 2022 18:15:48 +0200
Subject: [PATCH 3910/4878] net: dsa: ar9331: register the mdiobus under devres

[ Upstream commit 50facd86e9fbc4b93fe02e5fe05776047f45dbfb ]

As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")

mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.

The ar9331 is an MDIO device, so the initial set of constraints that I
thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.

If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the ar9331 switch driver on shutdown.

So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.

The ar9331 driver doesn't have a complex code structure for mdiobus
removal, so just replace of_mdiobus_register with the devres variant in
order to be all-devres and ensure that we don't free a still-registered
bus.

Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/qca/ar9331.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/dsa/qca/ar9331.c b/drivers/net/dsa/qca/ar9331.c
index 661745932a539..c33bdcf7efc58 100644
--- a/drivers/net/dsa/qca/ar9331.c
+++ b/drivers/net/dsa/qca/ar9331.c
@@ -289,7 +289,7 @@ static int ar9331_sw_mbus_init(struct ar9331_sw_priv *priv)
 	if (!mnp)
 		return -ENODEV;
 
-	ret = of_mdiobus_register(mbus, mnp);
+	ret = devm_of_mdiobus_register(dev, mbus, mnp);
 	of_node_put(mnp);
 	if (ret)
 		return ret;
@@ -856,7 +856,6 @@ static void ar9331_sw_remove(struct mdio_device *mdiodev)
 	struct ar9331_sw_priv *priv = dev_get_drvdata(&mdiodev->dev);
 
 	irq_domain_remove(priv->irqdomain);
-	mdiobus_unregister(priv->mbus);
 	dsa_unregister_switch(&priv->ds);
 
 	reset_control_assert(priv->sw_reset);
-- 
GitLab


From 2770b795294ed312375c11ef1d0b810499c66b83 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 7 Feb 2022 18:15:49 +0200
Subject: [PATCH 3911/4878] net: dsa: bcm_sf2: don't use devres for mdiobus

[ Upstream commit 08f1a20822349004bb9cc1b153ecb516e9f2889d ]

As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")

mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.

The Starfighter 2 is a platform device, so the initial set of
constraints that I thought would cause this (I2C or SPI buses which call
->remove on ->shutdown) do not apply. But there is one more which
applies here.

If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the bcm_sf2 switch driver on shutdown.

So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.

The bcm_sf2 driver has the code structure in place for orderly mdiobus
removal, so just replace devm_mdiobus_alloc() with the non-devres
variant, and add manual free where necessary, to ensure that we don't
let devres free a still-registered bus.

Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/bcm_sf2.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 690e9d9495e75..08a675a5328d7 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -504,7 +504,7 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	get_device(&priv->master_mii_bus->dev);
 	priv->master_mii_dn = dn;
 
-	priv->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
+	priv->slave_mii_bus = mdiobus_alloc();
 	if (!priv->slave_mii_bus) {
 		of_node_put(dn);
 		return -ENOMEM;
@@ -564,8 +564,10 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 	}
 
 	err = mdiobus_register(priv->slave_mii_bus);
-	if (err && dn)
+	if (err && dn) {
+		mdiobus_free(priv->slave_mii_bus);
 		of_node_put(dn);
+	}
 
 	return err;
 }
@@ -573,6 +575,7 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
 static void bcm_sf2_mdio_unregister(struct bcm_sf2_priv *priv)
 {
 	mdiobus_unregister(priv->slave_mii_bus);
+	mdiobus_free(priv->slave_mii_bus);
 	of_node_put(priv->master_mii_dn);
 }
 
-- 
GitLab


From 95e5402f9430b3c7d885dd3ec4c8c02c17936923 Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 7 Feb 2022 18:15:50 +0200
Subject: [PATCH 3912/4878] net: dsa: felix: don't use devres for mdiobus

[ Upstream commit 209bdb7ec6a28c7cdf580a0a98afbc9fc3b98932 ]

As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")

mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.

The Felix VSC9959 switch is a PCI device, so the initial set of
constraints that I thought would cause this (I2C or SPI buses which call
->remove on ->shutdown) do not apply. But there is one more which
applies here.

If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the felix switch driver on shutdown.

So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.

The felix driver has the code structure in place for orderly mdiobus
removal, so just replace devm_mdiobus_alloc_size() with the non-devres
variant, and add manual free where necessary, to ensure that we don't
let devres free a still-registered bus.

Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/ocelot/felix_vsc9959.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 2e5bbdca5ea47..cd8d9b0e0edb3 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -1050,7 +1050,7 @@ static int vsc9959_mdio_bus_alloc(struct ocelot *ocelot)
 		return PTR_ERR(hw);
 	}
 
-	bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv));
+	bus = mdiobus_alloc_size(sizeof(*mdio_priv));
 	if (!bus)
 		return -ENOMEM;
 
@@ -1070,6 +1070,7 @@ static int vsc9959_mdio_bus_alloc(struct ocelot *ocelot)
 	rc = mdiobus_register(bus);
 	if (rc < 0) {
 		dev_err(dev, "failed to register MDIO bus\n");
+		mdiobus_free(bus);
 		return rc;
 	}
 
@@ -1119,6 +1120,7 @@ static void vsc9959_mdio_bus_free(struct ocelot *ocelot)
 		lynx_pcs_destroy(pcs);
 	}
 	mdiobus_unregister(felix->imdio);
+	mdiobus_free(felix->imdio);
 }
 
 static void vsc9959_sched_speed_set(struct ocelot *ocelot, int port,
-- 
GitLab


From e177d2e85ebcd3008c4b2abc293f4118e04eedef Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 7 Feb 2022 18:15:53 +0200
Subject: [PATCH 3913/4878] net: dsa: lantiq_gswip: don't use devres for
 mdiobus

[ Upstream commit 0d120dfb5d67edc5bcd1804e167dba2b30809afd ]

As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")

mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.

The GSWIP switch is a platform device, so the initial set of constraints
that I thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.

If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the GSWIP switch driver on shutdown.

So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.

The gswip driver has the code structure in place for orderly mdiobus
removal, so just replace devm_mdiobus_alloc() with the non-devres
variant, and add manual free where necessary, to ensure that we don't
let devres free a still-registered bus.

Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/lantiq_gswip.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index 4d23a7aba7961..ed517985ca88e 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -495,8 +495,9 @@ static int gswip_mdio_rd(struct mii_bus *bus, int addr, int reg)
 static int gswip_mdio(struct gswip_priv *priv, struct device_node *mdio_np)
 {
 	struct dsa_switch *ds = priv->ds;
+	int err;
 
-	ds->slave_mii_bus = devm_mdiobus_alloc(priv->dev);
+	ds->slave_mii_bus = mdiobus_alloc();
 	if (!ds->slave_mii_bus)
 		return -ENOMEM;
 
@@ -509,7 +510,11 @@ static int gswip_mdio(struct gswip_priv *priv, struct device_node *mdio_np)
 	ds->slave_mii_bus->parent = priv->dev;
 	ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask;
 
-	return of_mdiobus_register(ds->slave_mii_bus, mdio_np);
+	err = of_mdiobus_register(ds->slave_mii_bus, mdio_np);
+	if (err)
+		mdiobus_free(ds->slave_mii_bus);
+
+	return err;
 }
 
 static int gswip_pce_table_entry_read(struct gswip_priv *priv,
@@ -2086,8 +2091,10 @@ disable_switch:
 	gswip_mdio_mask(priv, GSWIP_MDIO_GLOB_ENABLE, 0, GSWIP_MDIO_GLOB);
 	dsa_unregister_switch(priv->ds);
 mdio_bus:
-	if (mdio_np)
+	if (mdio_np) {
 		mdiobus_unregister(priv->ds->slave_mii_bus);
+		mdiobus_free(priv->ds->slave_mii_bus);
+	}
 put_mdio_node:
 	of_node_put(mdio_np);
 	for (i = 0; i < priv->num_gphy_fw; i++)
@@ -2107,6 +2114,7 @@ static int gswip_remove(struct platform_device *pdev)
 
 	if (priv->ds->slave_mii_bus) {
 		mdiobus_unregister(priv->ds->slave_mii_bus);
+		mdiobus_free(priv->ds->slave_mii_bus);
 		of_node_put(priv->ds->slave_mii_bus->dev.of_node);
 	}
 
-- 
GitLab


From 09ac0fcb0a82d647f2c61d3d488d367b7ee5bd51 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 7 Feb 2022 21:34:51 -0800
Subject: [PATCH 3914/4878] ipmr,ip6mr: acquire RTNL before calling
 ip[6]mr_free_table() on failure path

[ Upstream commit 5611a00697c8ecc5aad04392bea629e9d6a20463 ]

ip[6]mr_free_table() can only be called under RTNL lock.

RTNL: assertion failed at net/core/dev.c (10367)
WARNING: CPU: 1 PID: 5890 at net/core/dev.c:10367 unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367
Modules linked in:
CPU: 1 PID: 5890 Comm: syz-executor.2 Not tainted 5.16.0-syzkaller-11627-g422ee58dc0ef #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367
Code: 0f 85 9b ee ff ff e8 69 07 4b fa ba 7f 28 00 00 48 c7 c6 00 90 ae 8a 48 c7 c7 40 90 ae 8a c6 05 6d b1 51 06 01 e8 8c 90 d8 01 <0f> 0b e9 70 ee ff ff e8 3e 07 4b fa 4c 89 e7 e8 86 2a 59 fa e9 ee
RSP: 0018:ffffc900046ff6e0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888050f51d00 RSI: ffffffff815fa008 RDI: fffff520008dfece
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815f3d6e R11: 0000000000000000 R12: 00000000fffffff4
R13: dffffc0000000000 R14: ffffc900046ff750 R15: ffff88807b7dc000
FS:  00007f4ab736e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fee0b4f8990 CR3: 000000001e7d2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mroute_clean_tables+0x244/0xb40 net/ipv6/ip6mr.c:1509
 ip6mr_free_table net/ipv6/ip6mr.c:389 [inline]
 ip6mr_rules_init net/ipv6/ip6mr.c:246 [inline]
 ip6mr_net_init net/ipv6/ip6mr.c:1306 [inline]
 ip6mr_net_init+0x3f0/0x4e0 net/ipv6/ip6mr.c:1298
 ops_init+0xaf/0x470 net/core/net_namespace.c:140
 setup_net+0x54f/0xbb0 net/core/net_namespace.c:331
 copy_net_ns+0x318/0x760 net/core/net_namespace.c:475
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178
 copy_process+0x2e0c/0x7300 kernel/fork.c:2167
 kernel_clone+0xe7/0xab0 kernel/fork.c:2555
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2672
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4ab89f9059
Code: Unable to access opcode bytes at RIP 0x7f4ab89f902f.
RSP: 002b:00007f4ab736e118 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f4ab8b0bf60 RCX: 00007f4ab89f9059
RDX: 0000000020000280 RSI: 0000000020000270 RDI: 0000000040200000
RBP: 00007f4ab8a5308d R08: 0000000020000300 R09: 0000000020000300
R10: 00000000200002c0 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffc3977cc1f R14: 00007f4ab736e300 R15: 0000000000022000
 </TASK>

Fixes: f243e5a7859a ("ipmr,ip6mr: call ip6mr_free_table() on failure path")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Cong Wang <cong.wang@bytedance.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220208053451.2885398-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/ipmr.c  | 2 ++
 net/ipv6/ip6mr.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 939792a388146..be1976536f1c0 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -261,7 +261,9 @@ static int __net_init ipmr_rules_init(struct net *net)
 	return 0;
 
 err2:
+	rtnl_lock();
 	ipmr_free_table(mrt);
+	rtnl_unlock();
 err1:
 	fib_rules_unregister(ops);
 	return err;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 06b0d2c329b94..41cb348a7c3c4 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -248,7 +248,9 @@ static int __net_init ip6mr_rules_init(struct net *net)
 	return 0;
 
 err2:
+	rtnl_lock();
 	ip6mr_free_table(mrt);
+	rtnl_unlock();
 err1:
 	fib_rules_unregister(ops);
 	return err;
-- 
GitLab


From 0bae953d7ab50cac38fd7a2332b0583f98b60430 Mon Sep 17 00:00:00 2001
From: Louis Peens <louis.peens@corigine.com>
Date: Tue, 8 Feb 2022 11:14:53 +0100
Subject: [PATCH 3915/4878] nfp: flower: fix ida_idx not being released

[ Upstream commit 7db788ad627aabff2b74d4f1a3b68516d0fee0d7 ]

When looking for a global mac index the extra NFP_TUN_PRE_TUN_IDX_BIT
that gets set if nfp_flower_is_supported_bridge is true is not taken
into account. Consequently the path that should release the ida_index
in cleanup is never triggered, causing messages like:

    nfp 0000:02:00.0: nfp: Failed to offload MAC on br-ex.
    nfp 0000:02:00.0: nfp: Failed to offload MAC on br-ex.
    nfp 0000:02:00.0: nfp: Failed to offload MAC on br-ex.

after NFP_MAX_MAC_INDEX number of reconfigs. Ultimately this lead to
new tunnel flows not being offloaded.

Fix this by unsetting the NFP_TUN_PRE_TUN_IDX_BIT before checking if
the port is of type OTHER.

Fixes: 2e0bc7f3cb55 ("nfp: flower: encode mac indexes with pre-tunnel rule check")
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220208101453.321949-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/netronome/nfp/flower/tunnel_conf.c  | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
index d19c02e991145..d3d5b663a4a3c 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
@@ -1011,6 +1011,7 @@ nfp_tunnel_del_shared_mac(struct nfp_app *app, struct net_device *netdev,
 	struct nfp_flower_repr_priv *repr_priv;
 	struct nfp_tun_offloaded_mac *entry;
 	struct nfp_repr *repr;
+	u16 nfp_mac_idx;
 	int ida_idx;
 
 	entry = nfp_tunnel_lookup_offloaded_macs(app, mac);
@@ -1029,8 +1030,6 @@ nfp_tunnel_del_shared_mac(struct nfp_app *app, struct net_device *netdev,
 		entry->bridge_count--;
 
 		if (!entry->bridge_count && entry->ref_count) {
-			u16 nfp_mac_idx;
-
 			nfp_mac_idx = entry->index & ~NFP_TUN_PRE_TUN_IDX_BIT;
 			if (__nfp_tunnel_offload_mac(app, mac, nfp_mac_idx,
 						     false)) {
@@ -1046,7 +1045,6 @@ nfp_tunnel_del_shared_mac(struct nfp_app *app, struct net_device *netdev,
 
 	/* If MAC is now used by 1 repr set the offloaded MAC index to port. */
 	if (entry->ref_count == 1 && list_is_singular(&entry->repr_list)) {
-		u16 nfp_mac_idx;
 		int port, err;
 
 		repr_priv = list_first_entry(&entry->repr_list,
@@ -1074,8 +1072,14 @@ nfp_tunnel_del_shared_mac(struct nfp_app *app, struct net_device *netdev,
 	WARN_ON_ONCE(rhashtable_remove_fast(&priv->tun.offloaded_macs,
 					    &entry->ht_node,
 					    offloaded_macs_params));
+
+	if (nfp_flower_is_supported_bridge(netdev))
+		nfp_mac_idx = entry->index & ~NFP_TUN_PRE_TUN_IDX_BIT;
+	else
+		nfp_mac_idx = entry->index;
+
 	/* If MAC has global ID then extract and free the ida entry. */
-	if (nfp_tunnel_is_mac_idx_global(entry->index)) {
+	if (nfp_tunnel_is_mac_idx_global(nfp_mac_idx)) {
 		ida_idx = nfp_tunnel_get_ida_from_global_mac_idx(entry->index);
 		ida_simple_remove(&priv->tun.mac_off_ids, ida_idx);
 	}
-- 
GitLab


From 2e9fd2d0f69e4cc82a9a497bb14c1d70e75cc430 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <atenart@kernel.org>
Date: Mon, 7 Feb 2022 18:13:18 +0100
Subject: [PATCH 3916/4878] net: do not keep the dst cache when uncloning an
 skb dst and its metadata

[ Upstream commit cfc56f85e72f5b9c5c5be26dc2b16518d36a7868 ]

When uncloning an skb dst and its associated metadata a new dst+metadata
is allocated and the tunnel information from the old metadata is copied
over there.

The issue is the tunnel metadata has references to cached dst, which are
copied along the way. When a dst+metadata refcount drops to 0 the
metadata is freed including the cached dst entries. As they are also
referenced in the initial dst+metadata, this ends up in UaFs.

In practice the above did not happen because of another issue, the
dst+metadata was never freed because its refcount never dropped to 0
(this will be fixed in a subsequent patch).

Fix this by initializing the dst cache after copying the tunnel
information from the old metadata to also unshare the dst cache.

Fixes: d71785ffc7e7 ("net: add dst_cache to ovs vxlan lwtunnel")
Cc: Paolo Abeni <pabeni@redhat.com>
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/dst_metadata.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index 14efa0ded75dd..b997e0c1e3627 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -123,6 +123,19 @@ static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
 
 	memcpy(&new_md->u.tun_info, &md_dst->u.tun_info,
 	       sizeof(struct ip_tunnel_info) + md_size);
+#ifdef CONFIG_DST_CACHE
+	/* Unclone the dst cache if there is one */
+	if (new_md->u.tun_info.dst_cache.cache) {
+		int ret;
+
+		ret = dst_cache_init(&new_md->u.tun_info.dst_cache, GFP_ATOMIC);
+		if (ret) {
+			metadata_dst_free(new_md);
+			return ERR_PTR(ret);
+		}
+	}
+#endif
+
 	skb_dst_drop(skb);
 	dst_hold(&new_md->dst);
 	skb_dst_set(skb, &new_md->dst);
-- 
GitLab


From 00e6d6c3bc14dfe32824e2c515f0e0f2d6ecf2f1 Mon Sep 17 00:00:00 2001
From: Antoine Tenart <atenart@kernel.org>
Date: Mon, 7 Feb 2022 18:13:19 +0100
Subject: [PATCH 3917/4878] net: fix a memleak when uncloning an skb dst and
 its metadata

[ Upstream commit 9eeabdf17fa0ab75381045c867c370f4cc75a613 ]

When uncloning an skb dst and its associated metadata, a new
dst+metadata is allocated and later replaces the old one in the skb.
This is helpful to have a non-shared dst+metadata attached to a specific
skb.

The issue is the uncloned dst+metadata is initialized with a refcount of
1, which is increased to 2 before attaching it to the skb. When
tun_dst_unclone returns, the dst+metadata is only referenced from a
single place (the skb) while its refcount is 2. Its refcount will never
drop to 0 (when the skb is consumed), leading to a memory leak.

Fix this by removing the call to dst_hold in tun_dst_unclone, as the
dst+metadata refcount is already 1.

Fixes: fc4099f17240 ("openvswitch: Fix egress tunnel info.")
Cc: Pravin B Shelar <pshelar@ovn.org>
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/dst_metadata.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index b997e0c1e3627..adab27ba1ecbf 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -137,7 +137,6 @@ static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
 #endif
 
 	skb_dst_drop(skb);
-	dst_hold(&new_md->dst);
 	skb_dst_set(skb, &new_md->dst);
 	return new_md;
 }
-- 
GitLab


From bf99c144360dc0ba338eedc0917953157ce211ec Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 8 Feb 2022 15:28:22 -0800
Subject: [PATCH 3918/4878] veth: fix races around rq->rx_notify_masked

[ Upstream commit 68468d8c4cd4222a4ca1f185ab5a1c14480d078c ]

veth being NETIF_F_LLTX enabled, we need to be more careful
whenever we read/write rq->rx_notify_masked.

BUG: KCSAN: data-race in veth_xmit / veth_xmit

write to 0xffff888133d9a9f8 of 1 bytes by task 23552 on cpu 0:
 __veth_xdp_flush drivers/net/veth.c:269 [inline]
 veth_xmit+0x307/0x470 drivers/net/veth.c:350
 __netdev_start_xmit include/linux/netdevice.h:4683 [inline]
 netdev_start_xmit include/linux/netdevice.h:4697 [inline]
 xmit_one+0x105/0x2f0 net/core/dev.c:3473
 dev_hard_start_xmit net/core/dev.c:3489 [inline]
 __dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
 dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
 br_dev_queue_push_xmit+0x3ce/0x430 net/bridge/br_forward.c:53
 NF_HOOK include/linux/netfilter.h:307 [inline]
 br_forward_finish net/bridge/br_forward.c:66 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 __br_forward+0x2e4/0x400 net/bridge/br_forward.c:115
 br_flood+0x521/0x5c0 net/bridge/br_forward.c:242
 br_dev_xmit+0x8b6/0x960
 __netdev_start_xmit include/linux/netdevice.h:4683 [inline]
 netdev_start_xmit include/linux/netdevice.h:4697 [inline]
 xmit_one+0x105/0x2f0 net/core/dev.c:3473
 dev_hard_start_xmit net/core/dev.c:3489 [inline]
 __dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
 dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
 neigh_hh_output include/net/neighbour.h:525 [inline]
 neigh_output include/net/neighbour.h:539 [inline]
 ip_finish_output2+0x6f8/0xb70 net/ipv4/ip_output.c:228
 ip_finish_output+0xfb/0x240 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip_output+0xf3/0x1a0 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:451 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 ip_send_skb+0x6e/0xe0 net/ipv4/ip_output.c:1570
 udp_send_skb+0x641/0x880 net/ipv4/udp.c:967
 udp_sendmsg+0x12ea/0x14c0 net/ipv4/udp.c:1254
 inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:819
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2413
 ___sys_sendmsg net/socket.c:2467 [inline]
 __sys_sendmmsg+0x267/0x4c0 net/socket.c:2553
 __do_sys_sendmmsg net/socket.c:2582 [inline]
 __se_sys_sendmmsg net/socket.c:2579 [inline]
 __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888133d9a9f8 of 1 bytes by task 23563 on cpu 1:
 __veth_xdp_flush drivers/net/veth.c:268 [inline]
 veth_xmit+0x2d6/0x470 drivers/net/veth.c:350
 __netdev_start_xmit include/linux/netdevice.h:4683 [inline]
 netdev_start_xmit include/linux/netdevice.h:4697 [inline]
 xmit_one+0x105/0x2f0 net/core/dev.c:3473
 dev_hard_start_xmit net/core/dev.c:3489 [inline]
 __dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
 dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
 br_dev_queue_push_xmit+0x3ce/0x430 net/bridge/br_forward.c:53
 NF_HOOK include/linux/netfilter.h:307 [inline]
 br_forward_finish net/bridge/br_forward.c:66 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 __br_forward+0x2e4/0x400 net/bridge/br_forward.c:115
 br_flood+0x521/0x5c0 net/bridge/br_forward.c:242
 br_dev_xmit+0x8b6/0x960
 __netdev_start_xmit include/linux/netdevice.h:4683 [inline]
 netdev_start_xmit include/linux/netdevice.h:4697 [inline]
 xmit_one+0x105/0x2f0 net/core/dev.c:3473
 dev_hard_start_xmit net/core/dev.c:3489 [inline]
 __dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
 dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
 neigh_hh_output include/net/neighbour.h:525 [inline]
 neigh_output include/net/neighbour.h:539 [inline]
 ip_finish_output2+0x6f8/0xb70 net/ipv4/ip_output.c:228
 ip_finish_output+0xfb/0x240 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip_output+0xf3/0x1a0 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:451 [inline]
 ip_local_out net/ipv4/ip_output.c:126 [inline]
 ip_send_skb+0x6e/0xe0 net/ipv4/ip_output.c:1570
 udp_send_skb+0x641/0x880 net/ipv4/udp.c:967
 udp_sendmsg+0x12ea/0x14c0 net/ipv4/udp.c:1254
 inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:819
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2413
 ___sys_sendmsg net/socket.c:2467 [inline]
 __sys_sendmmsg+0x267/0x4c0 net/socket.c:2553
 __do_sys_sendmmsg net/socket.c:2582 [inline]
 __se_sys_sendmmsg net/socket.c:2579 [inline]
 __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 23563 Comm: syz-executor.5 Not tainted 5.17.0-rc2-syzkaller-00064-gc36c04c2e132 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 948d4f214fde ("veth: Add driver XDP")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/veth.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index aef66f8eecee1..f7e3eb309a26e 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -256,9 +256,10 @@ static void __veth_xdp_flush(struct veth_rq *rq)
 {
 	/* Write ptr_ring before reading rx_notify_masked */
 	smp_mb();
-	if (!rq->rx_notify_masked) {
-		rq->rx_notify_masked = true;
-		napi_schedule(&rq->xdp_napi);
+	if (!READ_ONCE(rq->rx_notify_masked) &&
+	    napi_schedule_prep(&rq->xdp_napi)) {
+		WRITE_ONCE(rq->rx_notify_masked, true);
+		__napi_schedule(&rq->xdp_napi);
 	}
 }
 
@@ -852,8 +853,10 @@ static int veth_poll(struct napi_struct *napi, int budget)
 		/* Write rx_notify_masked before reading ptr_ring */
 		smp_store_mb(rq->rx_notify_masked, false);
 		if (unlikely(!__ptr_ring_empty(&rq->xdp_ring))) {
-			rq->rx_notify_masked = true;
-			napi_schedule(&rq->xdp_napi);
+			if (napi_schedule_prep(&rq->xdp_napi)) {
+				WRITE_ONCE(rq->rx_notify_masked, true);
+				__napi_schedule(&rq->xdp_napi);
+			}
 		}
 	}
 
-- 
GitLab


From ef5cdae8bc00c37317b5375811457a6b46f8440b Mon Sep 17 00:00:00 2001
From: Joel Stanley <joel@jms.id.au>
Date: Wed, 9 Feb 2022 10:33:59 +1030
Subject: [PATCH 3919/4878] net: mdio: aspeed: Add missing MODULE_DEVICE_TABLE

[ Upstream commit bc1c3c3b10db4f37c41e6107751a8d450d9c431c ]

Fix loading of the driver when built as a module.

Fixes: f160e99462c6 ("net: phy: Add mdio-aspeed")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/mdio/mdio-aspeed.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/mdio/mdio-aspeed.c b/drivers/net/mdio/mdio-aspeed.c
index 966c3b4ad59d1..e2273588c75b6 100644
--- a/drivers/net/mdio/mdio-aspeed.c
+++ b/drivers/net/mdio/mdio-aspeed.c
@@ -148,6 +148,7 @@ static const struct of_device_id aspeed_mdio_of_match[] = {
 	{ .compatible = "aspeed,ast2600-mdio", },
 	{ },
 };
+MODULE_DEVICE_TABLE(of, aspeed_mdio_of_match);
 
 static struct platform_driver aspeed_mdio_driver = {
 	.driver = {
-- 
GitLab


From 657aea782887f6a55d6e2ad6ce82d8425b2e5bab Mon Sep 17 00:00:00 2001
From: Jon Maloy <jmaloy@redhat.com>
Date: Tue, 8 Feb 2022 22:22:37 -0500
Subject: [PATCH 3920/4878] tipc: rate limit warning for received illegal
 binding update

[ Upstream commit c7223d687758462826a20e9735305d55bb874c70 ]

It would be easy to craft a message containing an illegal binding table
update operation. This is handled correctly by the code, but the
corresponding warning printout is not rate limited as is should be.
We fix this now.

Fixes: b97bf3fd8f6a ("[TIPC] Initial merge")
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/name_distr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index fe4edce459ad4..a757fe28bcb5f 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -315,7 +315,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
 		pr_warn_ratelimited("Failed to remove binding %u,%u from %x\n",
 				    type, lower, node);
 	} else {
-		pr_warn("Unrecognized name table message received\n");
+		pr_warn_ratelimited("Unknown name table message received\n");
 	}
 	return false;
 }
-- 
GitLab


From ff6c9e0fcee5481b491aab49d55660a59ead1a81 Mon Sep 17 00:00:00 2001
From: Raju Rangoju <Raju.Rangoju@amd.com>
Date: Wed, 9 Feb 2022 10:02:01 +0530
Subject: [PATCH 3921/4878] net: amd-xgbe: disable interrupts during pci
 removal

[ Upstream commit 68c2d6af1f1e469544d6cbe9a601d96fb9c00e7f ]

Hardware interrupts are enabled during the pci probe, however,
they are not disabled during pci removal.

Disable all hardware interrupts during pci removal to avoid any
issues.

Fixes: e75377404726 ("amd-xgbe: Update PCI support to use new IRQ functions")
Suggested-by: Selwin Sebastian <Selwin.Sebastian@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-pci.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
index 90cb55eb54665..014513ce00a14 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
@@ -418,6 +418,9 @@ static void xgbe_pci_remove(struct pci_dev *pdev)
 
 	pci_free_irq_vectors(pdata->pcidev);
 
+	/* Disable all interrupts in the hardware */
+	XP_IOWRITE(pdata, XP_INT_EN, 0x0);
+
 	xgbe_free_pdata(pdata);
 }
 
-- 
GitLab


From f8edc6feab4d5c7c0b6c6bfdec6bf9e294b2dc3e Mon Sep 17 00:00:00 2001
From: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Date: Wed, 9 Feb 2022 17:57:43 +0200
Subject: [PATCH 3922/4878] dpaa2-eth: unregister the netdev before
 disconnecting from the PHY

[ Upstream commit 9ccc6e0c8959a019bb40f6b18704b142c04b19a8 ]

The netdev should be unregistered before we are disconnecting from the
MAC/PHY so that the dev_close callback is called and the PHY and the
phylink workqueues are actually stopped before we are disconnecting and
destroying the phylink instance.

Fixes: 719479230893 ("dpaa2-eth: add MAC/PHY support through phylink")
Signed-off-by: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index f06d88c471d0f..f917bc9c87969 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -4405,12 +4405,12 @@ static int dpaa2_eth_remove(struct fsl_mc_device *ls_dev)
 #ifdef CONFIG_DEBUG_FS
 	dpaa2_dbg_remove(priv);
 #endif
+
+	unregister_netdev(net_dev);
 	rtnl_lock();
 	dpaa2_eth_disconnect_mac(priv);
 	rtnl_unlock();
 
-	unregister_netdev(net_dev);
-
 	dpaa2_eth_dl_port_del(priv);
 	dpaa2_eth_dl_traps_unregister(priv);
 	dpaa2_eth_dl_unregister(priv);
-- 
GitLab


From cf11949b916325ca925f9dd25ad649380c2adf04 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 7 Jan 2022 11:02:06 +0300
Subject: [PATCH 3923/4878] ice: fix an error code in ice_cfg_phy_fec()

[ Upstream commit 21338d58736ef70eaae5fd75d567a358ff7902f9 ]

Propagate the error code from ice_get_link_default_override() instead
of returning success.

Fixes: ea78ce4dab05 ("ice: add link lenient and default override support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 64714757bd4f4..2b0d0373ab2c6 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -3032,7 +3032,8 @@ ice_cfg_phy_fec(struct ice_port_info *pi, struct ice_aqc_set_phy_cfg_data *cfg,
 	if (fec == ICE_FEC_AUTO && ice_fw_supports_link_override(pi->hw)) {
 		struct ice_link_default_override_tlv tlv;
 
-		if (ice_get_link_default_override(&tlv, pi))
+		status = ice_get_link_default_override(&tlv, pi);
+		if (status)
 			goto out;
 
 		if (!(tlv.options & ICE_LINK_OVERRIDE_STRICT_MODE) &&
-- 
GitLab


From 809f030745b29ca3f6f8b4f0f9888da61500d2e7 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Fri, 14 Jan 2022 15:38:39 -0800
Subject: [PATCH 3924/4878] ice: fix IPIP and SIT TSO offload

[ Upstream commit 46b699c50c0304cdbd725d7740073a7f9d5edb10 ]

The driver was avoiding offload for IPIP (at least) frames due to
parsing the inner header offsets incorrectly when trying to check
lengths.

This length check works for VXLAN frames but fails on IPIP frames
because skb_transport_offset points to the inner header in IPIP
frames, which meant the subtraction of transport_header from
inner_network_header returns a negative value (-20).

With the code before this patch, everything continued to work, but GSO
was being used to segment, causing throughputs of 1.5Gb/s per thread.
After this patch, throughput is more like 10Gb/s per thread for IPIP
traffic.

Fixes: e94d44786693 ("ice: Implement filter sync, NDO operations and bump version")
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/intel/ice/ice_lan_tx_rx.h    |  1 +
 drivers/net/ethernet/intel/ice/ice_main.c     | 25 +++++++++++++------
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
index c0ee0541e53fc..847e1ef8e1064 100644
--- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
+++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
@@ -507,6 +507,7 @@ struct ice_tx_ctx_desc {
 			(0x3FFFFULL << ICE_TXD_CTX_QW1_TSO_LEN_S)
 
 #define ICE_TXD_CTX_QW1_MSS_S	50
+#define ICE_TXD_CTX_MIN_MSS	64
 
 enum ice_tx_ctx_desc_cmd_bits {
 	ICE_TX_CTX_DESC_TSO		= 0x01,
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 4c7d1720113a0..fb4656902634c 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -6787,6 +6787,7 @@ ice_features_check(struct sk_buff *skb,
 		   struct net_device __always_unused *netdev,
 		   netdev_features_t features)
 {
+	bool gso = skb_is_gso(skb);
 	size_t len;
 
 	/* No point in doing any of this if neither checksum nor GSO are
@@ -6799,24 +6800,32 @@ ice_features_check(struct sk_buff *skb,
 	/* We cannot support GSO if the MSS is going to be less than
 	 * 64 bytes. If it is then we need to drop support for GSO.
 	 */
-	if (skb_is_gso(skb) && (skb_shinfo(skb)->gso_size < 64))
+	if (gso && (skb_shinfo(skb)->gso_size < ICE_TXD_CTX_MIN_MSS))
 		features &= ~NETIF_F_GSO_MASK;
 
-	len = skb_network_header(skb) - skb->data;
+	len = skb_network_offset(skb);
 	if (len > ICE_TXD_MACLEN_MAX || len & 0x1)
 		goto out_rm_features;
 
-	len = skb_transport_header(skb) - skb_network_header(skb);
+	len = skb_network_header_len(skb);
 	if (len > ICE_TXD_IPLEN_MAX || len & 0x1)
 		goto out_rm_features;
 
 	if (skb->encapsulation) {
-		len = skb_inner_network_header(skb) - skb_transport_header(skb);
-		if (len > ICE_TXD_L4LEN_MAX || len & 0x1)
-			goto out_rm_features;
+		/* this must work for VXLAN frames AND IPIP/SIT frames, and in
+		 * the case of IPIP frames, the transport header pointer is
+		 * after the inner header! So check to make sure that this
+		 * is a GRE or UDP_TUNNEL frame before doing that math.
+		 */
+		if (gso && (skb_shinfo(skb)->gso_type &
+			    (SKB_GSO_GRE | SKB_GSO_UDP_TUNNEL))) {
+			len = skb_inner_network_header(skb) -
+			      skb_transport_header(skb);
+			if (len > ICE_TXD_L4LEN_MAX || len & 0x1)
+				goto out_rm_features;
+		}
 
-		len = skb_inner_transport_header(skb) -
-		      skb_inner_network_header(skb);
+		len = skb_inner_network_header_len(skb);
 		if (len > ICE_TXD_IPLEN_MAX || len & 0x1)
 			goto out_rm_features;
 	}
-- 
GitLab


From 3a3c65c487a48d813e393a017cff954fe499084b Mon Sep 17 00:00:00 2001
From: Colin Foster <colin.foster@in-advantage.com>
Date: Thu, 10 Feb 2022 07:04:51 -0800
Subject: [PATCH 3925/4878] net: mscc: ocelot: fix mutex lock error during
 ethtool stats read

[ Upstream commit 7fbf6795d127a3b1bb39b0e42579904cf6db1624 ]

An ongoing workqueue populates the stats buffer. At the same time, a user
might query the statistics. While writing to the buffer is mutex-locked,
reading from the buffer wasn't. This could lead to buggy reads by ethtool.

This patch fixes the former blamed commit, but the bug was introduced in
the latter.

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Fixes: 1e1caa9735f90 ("ocelot: Clean up stats update deferred work")
Fixes: a556c76adc052 ("net: mscc: Add initial Ocelot switch support")
Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/all/20220210150451.416845-2-colin.foster@in-advantage.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mscc/ocelot.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 52401915828a1..a06466ecca12a 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -848,12 +848,11 @@ void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data)
 }
 EXPORT_SYMBOL(ocelot_get_strings);
 
+/* Caller must hold &ocelot->stats_lock */
 static void ocelot_update_stats(struct ocelot *ocelot)
 {
 	int i, j;
 
-	mutex_lock(&ocelot->stats_lock);
-
 	for (i = 0; i < ocelot->num_phys_ports; i++) {
 		/* Configure the port to read the stats from */
 		ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(i), SYS_STAT_CFG);
@@ -872,8 +871,6 @@ static void ocelot_update_stats(struct ocelot *ocelot)
 					      ~(u64)U32_MAX) + val;
 		}
 	}
-
-	mutex_unlock(&ocelot->stats_lock);
 }
 
 static void ocelot_check_stats_work(struct work_struct *work)
@@ -882,7 +879,9 @@ static void ocelot_check_stats_work(struct work_struct *work)
 	struct ocelot *ocelot = container_of(del_work, struct ocelot,
 					     stats_work);
 
+	mutex_lock(&ocelot->stats_lock);
 	ocelot_update_stats(ocelot);
+	mutex_unlock(&ocelot->stats_lock);
 
 	queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work,
 			   OCELOT_STATS_CHECK_DELAY);
@@ -892,12 +891,16 @@ void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data)
 {
 	int i;
 
+	mutex_lock(&ocelot->stats_lock);
+
 	/* check and update now */
 	ocelot_update_stats(ocelot);
 
 	/* Copy all counters */
 	for (i = 0; i < ocelot->num_stats; i++)
 		*data++ = ocelot->stats[port * ocelot->num_stats + i];
+
+	mutex_unlock(&ocelot->stats_lock);
 }
 EXPORT_SYMBOL(ocelot_get_ethtool_stats);
 
-- 
GitLab


From 22249886dc5bc3d6bcc212f07e65b49d85c582fe Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Thu, 10 Feb 2022 19:40:17 +0200
Subject: [PATCH 3926/4878] net: dsa: mv88e6xxx: fix use-after-free in
 mv88e6xxx_mdios_unregister

[ Upstream commit 51a04ebf21122d5c76a716ecd9bfc33ea44b2b39 ]

Since struct mv88e6xxx_mdio_bus *mdio_bus is the bus->priv of something
allocated with mdiobus_alloc_size(), this means that mdiobus_free(bus)
will free the memory backing the mdio_bus as well. Therefore, the
mdio_bus->list element is freed memory, but we continue to iterate
through the list of MDIO buses using that list element.

To fix this, use the proper list iterator that handles element deletion
by keeping a copy of the list element next pointer.

Fixes: f53a2ce893b2 ("net: dsa: mv88e6xxx: don't use devres for mdiobus")
Reported-by: Rafael Richter <rafael.richter@gin.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220210174017.3271099-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 9b451b820d7a6..1992be77522ac 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3122,10 +3122,10 @@ out:
 static void mv88e6xxx_mdios_unregister(struct mv88e6xxx_chip *chip)
 
 {
-	struct mv88e6xxx_mdio_bus *mdio_bus;
+	struct mv88e6xxx_mdio_bus *mdio_bus, *p;
 	struct mii_bus *bus;
 
-	list_for_each_entry(mdio_bus, &chip->mdios, list) {
+	list_for_each_entry_safe(mdio_bus, p, &chip->mdios, list) {
 		bus = mdio_bus->bus;
 
 		if (!mdio_bus->external)
-- 
GitLab


From 778302ca09498b448620edd372dc908bebf80bdf Mon Sep 17 00:00:00 2001
From: Jakob Koschel <jakobkoschel@gmail.com>
Date: Thu, 27 Jan 2022 15:44:04 +0100
Subject: [PATCH 3927/4878] vt_ioctl: fix array_index_nospec in vt_setactivate

commit 61cc70d9e8ef5b042d4ed87994d20100ec8896d9 upstream.

array_index_nospec ensures that an out-of-bounds value is set to zero
on the transient path. Decreasing the value by one afterwards causes
a transient integer underflow. vsa.console should be decreased first
and then sanitized with array_index_nospec.

Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh
Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU
Amsterdam.

Co-developed-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Signed-off-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Link: https://lore.kernel.org/r/20220127144406.3589293-1-jakobkoschel@gmail.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/vt/vt_ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 90e4fcd3dc39a..1e627ecab6aff 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -699,8 +699,8 @@ static int vt_setactivate(struct vt_setactivate __user *sa)
 	if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES)
 		return -ENXIO;
 
-	vsa.console = array_index_nospec(vsa.console, MAX_NR_CONSOLES + 1);
 	vsa.console--;
+	vsa.console = array_index_nospec(vsa.console, MAX_NR_CONSOLES);
 	console_lock();
 	ret = vc_allocate(vsa.console);
 	if (ret) {
-- 
GitLab


From f1b25737156c49d3bc353ee6d6d822fafca6954b Mon Sep 17 00:00:00 2001
From: Jakob Koschel <jakobkoschel@gmail.com>
Date: Thu, 27 Jan 2022 15:44:05 +0100
Subject: [PATCH 3928/4878] vt_ioctl: add array_index_nospec to VT_ACTIVATE

commit 28cb138f559f8c1a1395f5564f86b8bbee83631b upstream.

in vt_setactivate an almost identical code path has been patched
with array_index_nospec. In the VT_ACTIVATE path the user input
is from a system call argument instead of a usercopy.
For consistency both code paths should have the same mitigations
applied.

Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh
Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU
Amsterdam.

Co-developed-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Signed-off-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Signed-off-by: Jakob Koschel <jakobkoschel@gmail.com>
Link: https://lore.kernel.org/r/20220127144406.3589293-2-jakobkoschel@gmail.com
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/vt/vt_ioctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 1e627ecab6aff..a9c6ea8986af0 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -945,6 +945,7 @@ int vt_ioctl(struct tty_struct *tty,
 			return -ENXIO;
 
 		arg--;
+		arg = array_index_nospec(arg, MAX_NR_CONSOLES);
 		console_lock();
 		ret = vc_allocate(arg);
 		console_unlock();
-- 
GitLab


From 1b99fe34e26dbfe675a8d41632957fb9b8ad96f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?TATSUKAWA=20KOSUKE=20=28=E7=AB=8B=E5=B7=9D=20=E6=B1=9F?=
 =?UTF-8?q?=E4=BB=8B=29?= <tatsu-ab1@nec.com>
Date: Wed, 26 Jan 2022 23:35:02 +0000
Subject: [PATCH 3929/4878] n_tty: wake up poll(POLLRDNORM) on receiving data

commit c816b2e65b0e86b95011418cad334f0524fc33b8 upstream.

The poll man page says POLLRDNORM is equivalent to POLLIN when used as
an event.
$ man poll
<snip>
              POLLRDNORM
                     Equivalent to POLLIN.

However, in n_tty driver, POLLRDNORM does not return until timeout even
if there is terminal input, whereas POLLIN returns.

The following test program works until kernel-3.17, but the test stops
in poll() after commit 57087d515441 ("tty: Fix spurious poll() wakeups").

[Steps to run test program]
  $ cc -o test-pollrdnorm test-pollrdnorm.c
  $ ./test-pollrdnorm
  foo          <-- Type in something from the terminal followed by [RET].
                   The string should be echoed back.

  ------------------------< test-pollrdnorm.c >------------------------
  #include <stdio.h>
  #include <errno.h>
  #include <poll.h>
  #include <unistd.h>

  void main(void)
  {
	int		n;
	unsigned char	buf[8];
	struct pollfd	fds[1] = {{ 0, POLLRDNORM, 0 }};

	n = poll(fds, 1, -1);
	if (n < 0)
		perror("poll");
	n = read(0, buf, 8);
	if (n < 0)
		perror("read");
	if (n > 0)
		write(1, buf, n);
  }
  ------------------------------------------------------------------------

The attached patch fixes this problem.  Many calls to
wake_up_interruptible_poll() in the kernel source code already specify
"POLLIN | POLLRDNORM".

Fixes: 57087d515441 ("tty: Fix spurious poll() wakeups")
Cc: stable@vger.kernel.org
Signed-off-by: Kosuke Tatsukawa <tatsu-ab1@nec.com>
Link: https://lore.kernel.org/r/TYCPR01MB81901C0F932203D30E452B3EA5209@TYCPR01MB8190.jpnprd01.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index e4f4b2186bcec..128461bd04bb9 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1372,7 +1372,7 @@ handle_newline:
 			put_tty_queue(c, ldata);
 			smp_store_release(&ldata->canon_head, ldata->read_head);
 			kill_fasync(&tty->fasync, SIGIO, POLL_IN);
-			wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
+			wake_up_interruptible_poll(&tty->read_wait, EPOLLIN | EPOLLRDNORM);
 			return 0;
 		}
 	}
@@ -1653,7 +1653,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
 
 	if (read_cnt(ldata)) {
 		kill_fasync(&tty->fasync, SIGIO, POLL_IN);
-		wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
+		wake_up_interruptible_poll(&tty->read_wait, EPOLLIN | EPOLLRDNORM);
 	}
 }
 
-- 
GitLab


From a37960df7eac3cc8094bd1ab84864e9e32c91345 Mon Sep 17 00:00:00 2001
From: Jonas Malaco <jonas@protocubo.io>
Date: Thu, 3 Feb 2022 13:49:52 -0300
Subject: [PATCH 3930/4878] eeprom: ee1004: limit i2c reads to
 I2C_SMBUS_BLOCK_MAX

commit c0689e46be23160d925dca95dfc411f1a0462708 upstream.

Commit effa453168a7 ("i2c: i801: Don't silently correct invalid transfer
size") revealed that ee1004_eeprom_read() did not properly limit how
many bytes to read at once.

In particular, i2c_smbus_read_i2c_block_data_or_emulated() takes the
length to read as an u8.  If count == 256 after taking into account the
offset and page boundary, the cast to u8 overflows.  And this is common
when user space tries to read the entire EEPROM at once.

To fix it, limit each read to I2C_SMBUS_BLOCK_MAX (32) bytes, already
the maximum length i2c_smbus_read_i2c_block_data_or_emulated() allows.

Fixes: effa453168a7 ("i2c: i801: Don't silently correct invalid transfer size")
Cc: stable@vger.kernel.org
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jonas Malaco <jonas@protocubo.io>
Link: https://lore.kernel.org/r/20220203165024.47767-1-jonas@protocubo.io
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/eeprom/ee1004.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/misc/eeprom/ee1004.c b/drivers/misc/eeprom/ee1004.c
index 252e15ba65e11..d9f90332aaf65 100644
--- a/drivers/misc/eeprom/ee1004.c
+++ b/drivers/misc/eeprom/ee1004.c
@@ -82,6 +82,9 @@ static ssize_t ee1004_eeprom_read(struct i2c_client *client, char *buf,
 	if (unlikely(offset + count > EE1004_PAGE_SIZE))
 		count = EE1004_PAGE_SIZE - offset;
 
+	if (count > I2C_SMBUS_BLOCK_MAX)
+		count = I2C_SMBUS_BLOCK_MAX;
+
 	status = i2c_smbus_read_i2c_block_data_or_emulated(client, offset,
 							   count, buf);
 	dev_dbg(&client->dev, "read %zu@%d --> %d\n", count, offset, status);
-- 
GitLab


From 73961057e9dcec90cedcc4a2dafa2a87749d6459 Mon Sep 17 00:00:00 2001
From: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Date: Wed, 9 Feb 2022 17:15:53 +0100
Subject: [PATCH 3931/4878] usb: dwc2: drd: fix soft connect when gadget is
 unconfigured

commit 269cbcf7b72de6f0016806d4a0cec1d689b55a87 upstream.

When the gadget driver hasn't been (yet) configured, and the cable is
connected to a HOST, the SFTDISCON gets cleared unconditionally, so the
HOST tries to enumerate it.
At the host side, this can result in a stuck USB port or worse. When
getting lucky, some dmesg can be observed at the host side:
 new high-speed USB device number ...
 device descriptor read/64, error -110

Fix it in drd, by checking the enabled flag before calling
dwc2_hsotg_core_connect(). It will be called later, once configured,
by the normal flow:
- udc_bind_to_driver
 - usb_gadget_connect
   - dwc2_hsotg_pullup
     - dwc2_hsotg_core_connect

Fixes: 17f934024e84 ("usb: dwc2: override PHY input signals with usb role switch support")
Cc: stable@kernel.org
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/1644423353-17859-1-git-send-email-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/drd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c
index aa6eb76f64ddc..f50850ab646c5 100644
--- a/drivers/usb/dwc2/drd.c
+++ b/drivers/usb/dwc2/drd.c
@@ -109,8 +109,10 @@ static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role)
 		already = dwc2_ovr_avalid(hsotg, true);
 	} else if (role == USB_ROLE_DEVICE) {
 		already = dwc2_ovr_bvalid(hsotg, true);
-		/* This clear DCTL.SFTDISCON bit */
-		dwc2_hsotg_core_connect(hsotg);
+		if (hsotg->enabled) {
+			/* This clear DCTL.SFTDISCON bit */
+			dwc2_hsotg_core_connect(hsotg);
+		}
 	} else {
 		if (dwc2_is_device_mode(hsotg)) {
 			if (!dwc2_ovr_bvalid(hsotg, false))
-- 
GitLab


From a66a2b17b8c863b2351303adc38087ac89b8cc59 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 12 Feb 2022 10:08:54 +0100
Subject: [PATCH 3932/4878] Revert "usb: dwc2: drd: fix soft connect when
 gadget is unconfigured"

commit 736e8d89044c1c330967fb938fa766cd9e0d8af0 upstream.

This reverts commit 269cbcf7b72de6f0016806d4a0cec1d689b55a87.

It causes build errors as reported by the kernel test robot.

Link: https://lore.kernel.org/r/202202112236.AwoOTtHO-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 269cbcf7b72d ("usb: dwc2: drd: fix soft connect when gadget is unconfigured")
Cc: stable@kernel.org
Cc: Amelie Delaunay <amelie.delaunay@foss.st.com>
Cc: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/drd.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c
index f50850ab646c5..aa6eb76f64ddc 100644
--- a/drivers/usb/dwc2/drd.c
+++ b/drivers/usb/dwc2/drd.c
@@ -109,10 +109,8 @@ static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role)
 		already = dwc2_ovr_avalid(hsotg, true);
 	} else if (role == USB_ROLE_DEVICE) {
 		already = dwc2_ovr_bvalid(hsotg, true);
-		if (hsotg->enabled) {
-			/* This clear DCTL.SFTDISCON bit */
-			dwc2_hsotg_core_connect(hsotg);
-		}
+		/* This clear DCTL.SFTDISCON bit */
+		dwc2_hsotg_core_connect(hsotg);
 	} else {
 		if (dwc2_is_device_mode(hsotg)) {
 			if (!dwc2_ovr_bvalid(hsotg, false))
-- 
GitLab


From 758290defe93a865a2880d10c5d5abd288b64b5d Mon Sep 17 00:00:00 2001
From: Jann Horn <jannh@google.com>
Date: Wed, 26 Jan 2022 14:14:52 +0100
Subject: [PATCH 3933/4878] net: usb: ax88179_178a: Fix out-of-bounds accesses
 in RX fixup

commit 57bc3d3ae8c14df3ceb4e17d26ddf9eeab304581 upstream.

ax88179_rx_fixup() contains several out-of-bounds accesses that can be
triggered by a malicious (or defective) USB device, in particular:

 - The metadata array (hdr_off..hdr_off+2*pkt_cnt) can be out of bounds,
   causing OOB reads and (on big-endian systems) OOB endianness flips.
 - A packet can overlap the metadata array, causing a later OOB
   endianness flip to corrupt data used by a cloned SKB that has already
   been handed off into the network stack.
 - A packet SKB can be constructed whose tail is far beyond its end,
   causing out-of-bounds heap data to be considered part of the SKB's
   data.

I have tested that this can be used by a malicious USB device to send a
bogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in response
that contains random kernel heap data.
It's probably also possible to get OOB writes from this on a
little-endian system somehow - maybe by triggering skb_cow() via IP
options processing -, but I haven't tested that.

Fixes: e2ca90c276e1 ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver")
Cc: stable@kernel.org
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/ax88179_178a.c | 68 +++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 29 deletions(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index b77b0a33d697d..0b0cbcee1920b 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1467,58 +1467,68 @@ static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 	u16 hdr_off;
 	u32 *pkt_hdr;
 
-	/* This check is no longer done by usbnet */
-	if (skb->len < dev->net->hard_header_len)
+	/* At the end of the SKB, there's a header telling us how many packets
+	 * are bundled into this buffer and where we can find an array of
+	 * per-packet metadata (which contains elements encoded into u16).
+	 */
+	if (skb->len < 4)
 		return 0;
-
 	skb_trim(skb, skb->len - 4);
 	rx_hdr = get_unaligned_le32(skb_tail_pointer(skb));
-
 	pkt_cnt = (u16)rx_hdr;
 	hdr_off = (u16)(rx_hdr >> 16);
+
+	if (pkt_cnt == 0)
+		return 0;
+
+	/* Make sure that the bounds of the metadata array are inside the SKB
+	 * (and in front of the counter at the end).
+	 */
+	if (pkt_cnt * 2 + hdr_off > skb->len)
+		return 0;
 	pkt_hdr = (u32 *)(skb->data + hdr_off);
 
-	while (pkt_cnt--) {
+	/* Packets must not overlap the metadata array */
+	skb_trim(skb, hdr_off);
+
+	for (; ; pkt_cnt--, pkt_hdr++) {
 		u16 pkt_len;
 
 		le32_to_cpus(pkt_hdr);
 		pkt_len = (*pkt_hdr >> 16) & 0x1fff;
 
-		/* Check CRC or runt packet */
-		if ((*pkt_hdr & AX_RXHDR_CRC_ERR) ||
-		    (*pkt_hdr & AX_RXHDR_DROP_ERR)) {
-			skb_pull(skb, (pkt_len + 7) & 0xFFF8);
-			pkt_hdr++;
-			continue;
-		}
-
-		if (pkt_cnt == 0) {
-			skb->len = pkt_len;
-			/* Skip IP alignment pseudo header */
-			skb_pull(skb, 2);
-			skb_set_tail_pointer(skb, skb->len);
-			skb->truesize = pkt_len + sizeof(struct sk_buff);
-			ax88179_rx_checksum(skb, pkt_hdr);
-			return 1;
-		}
+		if (pkt_len > skb->len)
+			return 0;
 
-		ax_skb = skb_clone(skb, GFP_ATOMIC);
-		if (ax_skb) {
+		/* Check CRC or runt packet */
+		if (((*pkt_hdr & (AX_RXHDR_CRC_ERR | AX_RXHDR_DROP_ERR)) == 0) &&
+		    pkt_len >= 2 + ETH_HLEN) {
+			bool last = (pkt_cnt == 0);
+
+			if (last) {
+				ax_skb = skb;
+			} else {
+				ax_skb = skb_clone(skb, GFP_ATOMIC);
+				if (!ax_skb)
+					return 0;
+			}
 			ax_skb->len = pkt_len;
 			/* Skip IP alignment pseudo header */
 			skb_pull(ax_skb, 2);
 			skb_set_tail_pointer(ax_skb, ax_skb->len);
 			ax_skb->truesize = pkt_len + sizeof(struct sk_buff);
 			ax88179_rx_checksum(ax_skb, pkt_hdr);
+
+			if (last)
+				return 1;
+
 			usbnet_skb_return(dev, ax_skb);
-		} else {
-			return 0;
 		}
 
-		skb_pull(skb, (pkt_len + 7) & 0xFFF8);
-		pkt_hdr++;
+		/* Trim this packet away from the SKB */
+		if (!skb_pull(skb, (pkt_len + 7) & 0xFFF8))
+			return 0;
 	}
-	return 1;
 }
 
 static struct sk_buff *
-- 
GitLab


From 8b89a6916681a110403961a2bb923f1789340933 Mon Sep 17 00:00:00 2001
From: Sean Anderson <sean.anderson@seco.com>
Date: Thu, 27 Jan 2022 14:00:02 -0500
Subject: [PATCH 3934/4878] usb: ulpi: Move of_node_put to ulpi_dev_release

commit 092f45b13e51666fe8ecbf2d6cd247aa7e6c1f74 upstream.

Drivers are not unbound from the device when ulpi_unregister_interface
is called. Move of_node-freeing code to ulpi_dev_release which is called
only after all users are gone.

Fixes: ef6a7bcfb01c ("usb: ulpi: Support device discovery via DT")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20220127190004.1446909-2-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/common/ulpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 82fe8e00a96a3..2fdfe6e50e3de 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -132,6 +132,7 @@ static const struct attribute_group *ulpi_dev_attr_groups[] = {
 
 static void ulpi_dev_release(struct device *dev)
 {
+	of_node_put(dev->of_node);
 	kfree(to_ulpi_dev(dev));
 }
 
@@ -301,7 +302,6 @@ EXPORT_SYMBOL_GPL(ulpi_register_interface);
  */
 void ulpi_unregister_interface(struct ulpi *ulpi)
 {
-	of_node_put(ulpi->dev.of_node);
 	device_unregister(&ulpi->dev);
 }
 EXPORT_SYMBOL_GPL(ulpi_unregister_interface);
-- 
GitLab


From 2a17bd9f52104fc5c023499cf4c9bea3f10f2b1c Mon Sep 17 00:00:00 2001
From: Sean Anderson <sean.anderson@seco.com>
Date: Thu, 27 Jan 2022 14:00:03 -0500
Subject: [PATCH 3935/4878] usb: ulpi: Call of_node_put correctly

commit 0a907ee9d95e3ac35eb023d71f29eae0aaa52d1b upstream.

of_node_put should always be called on device nodes gotten from
of_get_*. Additionally, it should only be called after there are no
remaining users. To address the first issue, call of_node_put if later
steps in ulpi_register fail. To address the latter, call put_device if
device_register fails, which will call ulpi_dev_release if necessary.

Fixes: ef6a7bcfb01c ("usb: ulpi: Support device discovery via DT")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20220127190004.1446909-3-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/common/ulpi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 2fdfe6e50e3de..3c705f1bead8c 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -250,12 +250,16 @@ static int ulpi_register(struct device *dev, struct ulpi *ulpi)
 		return ret;
 
 	ret = ulpi_read_id(ulpi);
-	if (ret)
+	if (ret) {
+		of_node_put(ulpi->dev.of_node);
 		return ret;
+	}
 
 	ret = device_register(&ulpi->dev);
-	if (ret)
+	if (ret) {
+		put_device(&ulpi->dev);
 		return ret;
+	}
 
 	dev_dbg(&ulpi->dev, "registered ULPI PHY: vendor %04x, product %04x\n",
 		ulpi->id.vendor, ulpi->id.product);
-- 
GitLab


From 3bfca38914807293faa3d9b748bb1bec894e909a Mon Sep 17 00:00:00 2001
From: Udipto Goswami <quic_ugoswami@quicinc.com>
Date: Mon, 7 Feb 2022 09:55:58 +0530
Subject: [PATCH 3936/4878] usb: dwc3: gadget: Prevent core from processing
 stale TRBs

commit 117b4e96c7f362eb6459543883fc07f77662472c upstream.

With CPU re-ordering on write instructions, there might
be a chance that the HWO is set before the TRB is updated
with the new mapped buffer address.
And in the case where core is processing a list of TRBs
it is possible that it fetched the TRBs when the HWO is set
but before the buffer address is updated.
Prevent this by adding a memory barrier before the HWO
is updated to ensure that the core always process the
updated TRBs.

Fixes: f6bafc6a1c9d ("usb: dwc3: convert TRBs into bitshifts")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Udipto Goswami <quic_ugoswami@quicinc.com>
Link: https://lore.kernel.org/r/1644207958-18287-1-git-send-email-quic_ugoswami@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index e9a87e1f49508..9095ce52c28c6 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1072,6 +1072,19 @@ static void __dwc3_prepare_one_trb(struct dwc3_ep *dep, struct dwc3_trb *trb,
 	if (usb_endpoint_xfer_bulk(dep->endpoint.desc) && dep->stream_capable)
 		trb->ctrl |= DWC3_TRB_CTRL_SID_SOFN(stream_id);
 
+	/*
+	 * As per data book 4.2.3.2TRB Control Bit Rules section
+	 *
+	 * The controller autonomously checks the HWO field of a TRB to determine if the
+	 * entire TRB is valid. Therefore, software must ensure that the rest of the TRB
+	 * is valid before setting the HWO field to '1'. In most systems, this means that
+	 * software must update the fourth DWORD of a TRB last.
+	 *
+	 * However there is a possibility of CPU re-ordering here which can cause
+	 * controller to observe the HWO bit set prematurely.
+	 * Add a write memory barrier to prevent CPU re-ordering.
+	 */
+	wmb();
 	trb->ctrl |= DWC3_TRB_CTRL_HWO;
 
 	dwc3_ep_inc_enq(dep);
-- 
GitLab


From 351159167cd8593311482148f64ca14715984544 Mon Sep 17 00:00:00 2001
From: Adam Ford <aford173@gmail.com>
Date: Fri, 28 Jan 2022 16:36:03 -0600
Subject: [PATCH 3937/4878] usb: gadget: udc: renesas_usb3: Fix host to
 USB_ROLE_NONE transition

commit 459702eea6132888b5c5b64c0e9c626da4ec2493 upstream.

The support the external role switch a variety of situations were
addressed, but the transition from USB_ROLE_HOST to USB_ROLE_NONE
leaves the host up which can cause some error messages when
switching from host to none, to gadget, to none, and then back
to host again.

 xhci-hcd ee000000.usb: Abort failed to stop command ring: -110
 xhci-hcd ee000000.usb: xHCI host controller not responding, assume dead
 xhci-hcd ee000000.usb: HC died; cleaning up
 usb 4-1: device not accepting address 6, error -108
 usb usb4-port1: couldn't allocate usb_device

After this happens it will not act as a host again.
Fix this by releasing the host mode when transitioning to USB_ROLE_NONE.

Fixes: 0604160d8c0b ("usb: gadget: udc: renesas_usb3: Enhance role switch support")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/20220128223603.2362621-1-aford173@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/udc/renesas_usb3.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 57d417a7c3e0a..601829a6b4bad 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -2378,6 +2378,8 @@ static void handle_ext_role_switch_states(struct device *dev,
 	switch (role) {
 	case USB_ROLE_NONE:
 		usb3->connection_state = USB_ROLE_NONE;
+		if (cur_role == USB_ROLE_HOST)
+			device_release_driver(host);
 		if (usb3->driver)
 			usb3_disconnect(usb3);
 		usb3_vbus_out(usb3, false);
-- 
GitLab


From 22ec1004728548598f4f5b4a079a7873409eacfd Mon Sep 17 00:00:00 2001
From: Szymon Heidrich <szymon.heidrich@gmail.com>
Date: Mon, 24 Jan 2022 12:14:00 +0100
Subject: [PATCH 3938/4878] USB: gadget: validate interface OS descriptor
 requests

commit 75e5b4849b81e19e9efe1654b30d7f3151c33c2c upstream.

Stall the control endpoint in case provided index exceeds array size of
MAX_CONFIG_INTERFACES or when the retrieved function pointer is null.

Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/composite.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 8bec0cbf844ed..a980799900e71 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1944,6 +1944,9 @@ unknown:
 				if (w_index != 0x5 || (w_value >> 8))
 					break;
 				interface = w_value & 0xFF;
+				if (interface >= MAX_CONFIG_INTERFACES ||
+				    !os_desc_cfg->interface[interface])
+					break;
 				buf[6] = w_index;
 				count = count_ext_prop(os_desc_cfg,
 					interface);
-- 
GitLab


From fb4ff0f96de37c44236598e8b53fe43b1df36bf3 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 9 Feb 2022 16:37:53 +0100
Subject: [PATCH 3939/4878] usb: gadget: rndis: check size of RNDIS_MSG_SET
 command

commit 38ea1eac7d88072bbffb630e2b3db83ca649b826 upstream.

Check the size of the RNDIS_MSG_SET command given to us before
attempting to respond to an invalid message size.

Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Cc: stable@kernel.org
Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/rndis.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c
index 64de9f1b874c5..d9ed651f06ac3 100644
--- a/drivers/usb/gadget/function/rndis.c
+++ b/drivers/usb/gadget/function/rndis.c
@@ -637,14 +637,17 @@ static int rndis_set_response(struct rndis_params *params,
 	rndis_set_cmplt_type *resp;
 	rndis_resp_t *r;
 
+	BufLength = le32_to_cpu(buf->InformationBufferLength);
+	BufOffset = le32_to_cpu(buf->InformationBufferOffset);
+	if ((BufLength > RNDIS_MAX_TOTAL_SIZE) ||
+	    (BufOffset + 8 >= RNDIS_MAX_TOTAL_SIZE))
+		    return -EINVAL;
+
 	r = rndis_add_response(params, sizeof(rndis_set_cmplt_type));
 	if (!r)
 		return -ENOMEM;
 	resp = (rndis_set_cmplt_type *)r->buf;
 
-	BufLength = le32_to_cpu(buf->InformationBufferLength);
-	BufOffset = le32_to_cpu(buf->InformationBufferOffset);
-
 #ifdef	VERBOSE_DEBUG
 	pr_debug("%s: Length: %d\n", __func__, BufLength);
 	pr_debug("%s: Offset: %d\n", __func__, BufOffset);
-- 
GitLab


From e9f9b877eb0ee6df626ac067ad428fdd689514f3 Mon Sep 17 00:00:00 2001
From: Pavel Hofman <pavel.hofman@ivitera.com>
Date: Mon, 31 Jan 2022 08:18:13 +0100
Subject: [PATCH 3940/4878] usb: gadget: f_uac2: Define specific wTerminalType

commit 5432184107cd0013761bdfa6cb6079527ef87b95 upstream.

Several users have reported that their Win10 does not enumerate UAC2
gadget with the existing wTerminalType set to
UAC_INPUT_TERMINAL_UNDEFINED/UAC_INPUT_TERMINAL_UNDEFINED, e.g.
https://github.com/raspberrypi/linux/issues/4587#issuecomment-926567213.
While the constant is officially defined by the USB terminal types
document, e.g. XMOS firmware for UAC2 (commonly used for Win10) defines
no undefined output terminal type in its usbaudio20.h header.

Therefore wTerminalType of EP-IN is set to
UAC_INPUT_TERMINAL_MICROPHONE and wTerminalType of EP-OUT to
UAC_OUTPUT_TERMINAL_SPEAKER for the UAC2 gadget.

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220131071813.7433-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/f_uac2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index dd960cea642f3..11cc6056b5902 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -176,7 +176,7 @@ static struct uac2_input_terminal_descriptor io_in_it_desc = {
 
 	.bDescriptorSubtype = UAC_INPUT_TERMINAL,
 	/* .bTerminalID = DYNAMIC */
-	.wTerminalType = cpu_to_le16(UAC_INPUT_TERMINAL_UNDEFINED),
+	.wTerminalType = cpu_to_le16(UAC_INPUT_TERMINAL_MICROPHONE),
 	.bAssocTerminal = 0,
 	/* .bCSourceID = DYNAMIC */
 	.iChannelNames = 0,
@@ -204,7 +204,7 @@ static struct uac2_output_terminal_descriptor io_out_ot_desc = {
 
 	.bDescriptorSubtype = UAC_OUTPUT_TERMINAL,
 	/* .bTerminalID = DYNAMIC */
-	.wTerminalType = cpu_to_le16(UAC_OUTPUT_TERMINAL_UNDEFINED),
+	.wTerminalType = cpu_to_le16(UAC_OUTPUT_TERMINAL_SPEAKER),
 	.bAssocTerminal = 0,
 	/* .bSourceID = DYNAMIC */
 	/* .bCSourceID = DYNAMIC */
-- 
GitLab


From e07dde31acc955f69d36f48283d071a8b1657f8b Mon Sep 17 00:00:00 2001
From: Jann Horn <jannh@google.com>
Date: Wed, 26 Jan 2022 21:52:14 +0100
Subject: [PATCH 3941/4878] usb: raw-gadget: fix handling of
 dual-direction-capable endpoints

commit 292d2c82b105d92082c2120a44a58de9767e44f1 upstream.

Under dummy_hcd, every available endpoint is *either* IN or OUT capable.
But with some real hardware, there are endpoints that support both IN and
OUT. In particular, the PLX 2380 has four available endpoints that each
support both IN and OUT.

raw-gadget currently gets confused and thinks that any endpoint that is
usable as an IN endpoint can never be used as an OUT endpoint.

Fix it by looking at the direction in the configured endpoint descriptor
instead of looking at the hardware capabilities.

With this change, I can use the PLX 2380 with raw-gadget.

Fixes: f2c2e717642c ("usb: gadget: add raw-gadget interface")
Cc: stable <stable@vger.kernel.org>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/r/20220126205214.2149936-1-jannh@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/legacy/raw_gadget.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/legacy/raw_gadget.c b/drivers/usb/gadget/legacy/raw_gadget.c
index 062dfac303996..33efa6915b91d 100644
--- a/drivers/usb/gadget/legacy/raw_gadget.c
+++ b/drivers/usb/gadget/legacy/raw_gadget.c
@@ -1003,7 +1003,7 @@ static int raw_process_ep_io(struct raw_dev *dev, struct usb_raw_ep_io *io,
 		ret = -EBUSY;
 		goto out_unlock;
 	}
-	if ((in && !ep->ep->caps.dir_in) || (!in && ep->ep->caps.dir_in)) {
+	if (in != usb_endpoint_dir_in(ep->ep->desc)) {
 		dev_dbg(&dev->gadget->dev, "fail, wrong direction\n");
 		ret = -EINVAL;
 		goto out_unlock;
-- 
GitLab


From b7ed2f9619ccbf1bd70bdf02b68b5a9e0cdd15a1 Mon Sep 17 00:00:00 2001
From: Cameron Williams <cang1@live.co.uk>
Date: Tue, 1 Feb 2022 10:12:51 +0000
Subject: [PATCH 3942/4878] USB: serial: ftdi_sio: add support for Brainboxes
 US-159/235/320

commit fbb9b194e15a63c56c5664e76ccd0e85c6100cea upstream.

This patch adds support for the Brainboxes US-159, US-235 and US-320
USB-to-Serial devices.

Signed-off-by: Cameron Williams <cang1@live.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/ftdi_sio.c     | 3 +++
 drivers/usb/serial/ftdi_sio_ids.h | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index dfcf79bdfddce..b74621dc2a658 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -969,6 +969,7 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_023_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_034_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_101_PID) },
+	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_159_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_1_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_2_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_3_PID) },
@@ -977,12 +978,14 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_6_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_7_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_8_PID) },
+	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_235_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_257_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_1_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_2_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_3_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_4_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_313_PID) },
+	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_320_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_324_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_1_PID) },
 	{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_2_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 755858ca20bac..d1a9564697a4b 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1506,6 +1506,9 @@
 #define BRAINBOXES_VX_023_PID		0x1003 /* VX-023 ExpressCard 1 Port RS422/485 */
 #define BRAINBOXES_VX_034_PID		0x1004 /* VX-034 ExpressCard 2 Port RS422/485 */
 #define BRAINBOXES_US_101_PID		0x1011 /* US-101 1xRS232 */
+#define BRAINBOXES_US_159_PID		0x1021 /* US-159 1xRS232 */
+#define BRAINBOXES_US_235_PID		0x1017 /* US-235 1xRS232 */
+#define BRAINBOXES_US_320_PID		0x1019 /* US-320 1xRS422/485 */
 #define BRAINBOXES_US_324_PID		0x1013 /* US-324 1xRS422/485 1Mbaud */
 #define BRAINBOXES_US_606_1_PID		0x2001 /* US-606 6 Port RS232 Serial Port 1 and 2 */
 #define BRAINBOXES_US_606_2_PID		0x2002 /* US-606 6 Port RS232 Serial Port 3 and 4 */
-- 
GitLab


From 7113440a36c741efd7c76e3d70b3634100120cdb Mon Sep 17 00:00:00 2001
From: Pawel Dembicki <paweldembicki@gmail.com>
Date: Tue, 11 Jan 2022 23:12:05 +0100
Subject: [PATCH 3943/4878] USB: serial: option: add ZTE MF286D modem

commit d48384c7ed6c8fe4727eaa0f3048f62afd1cd715 upstream.

Modem from ZTE MF286D is an Qualcomm MDM9250 based 3G/4G modem.

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  3 Spd=5000 MxCh= 0
D:  Ver= 3.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs=  1
P:  Vendor=19d2 ProdID=1485 Rev=52.87
S:  Manufacturer=ZTE,Incorporated
S:  Product=ZTE Technologies MSM
S:  SerialNumber=MF286DZTED000000
C:* #Ifs= 7 Cfg#= 1 Atr=80 MxPwr=896mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=06 Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=ff Driver=rndis_host
E:  Ad=82(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
E:  Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=83(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E:  Ad=88(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
E:  Ad=8e(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=0f(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 6 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=usbfs
E:  Ad=05(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E:  Ad=89(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 21b1488fe4461..c39c505b081b1 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1649,6 +1649,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = RSVD(2) },
 	{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) },	/* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1481, 0xff, 0x00, 0x00) }, /* ZTE MF871A */
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1485, 0xff, 0xff, 0xff),  /* ZTE MF286D */
+	  .driver_info = RSVD(5) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) },
-- 
GitLab


From a21e6b2e0864877681936d30511ea1e7e6e0fc37 Mon Sep 17 00:00:00 2001
From: Stephan Brunner <s.brunner@stephan-brunner.net>
Date: Sat, 8 Jan 2022 13:00:20 +0100
Subject: [PATCH 3944/4878] USB: serial: ch341: add support for GW Instek
 USB2.0-Serial devices

commit fa77ce201f7f2d823b07753575122d1ae5597fbe upstream.

Programmable lab power supplies made by GW Instek, such as the
GPP-2323, have a USB port exposing a serial port to control the device.

Stringing the supplied Windows driver, references to the ch341 chip are
found. Binding the existing ch341 driver to the VID/PID of the GPP-2323
("GW Instek USB2.0-Serial" as per the USB product name) works out of the
box, communication and control is now possible.

This patch should work with any GPP series power supply due to
similarities in the product line.

Signed-off-by: Stephan Brunner <s.brunner@stephan-brunner.net>
Link: https://lore.kernel.org/r/4a47b864-0816-6f6a-efee-aa20e74bcdc6@stephan-brunner.net
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/ch341.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index f26861246f653..8716ada0b1387 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -85,6 +85,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x1a86, 0x5523) },
 	{ USB_DEVICE(0x1a86, 0x7522) },
 	{ USB_DEVICE(0x1a86, 0x7523) },
+	{ USB_DEVICE(0x2184, 0x0057) },
 	{ USB_DEVICE(0x4348, 0x5523) },
 	{ USB_DEVICE(0x9986, 0x7523) },
 	{ },
-- 
GitLab


From 51b03a9bcd99f6881e269b721a82e43257e3ea62 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 1 Feb 2022 11:42:52 +0100
Subject: [PATCH 3945/4878] USB: serial: cp210x: add NCR Retail IO box id

commit b50f8f09c622297d3cf46e332e17ba8adedec9af upstream.

Add the device id for NCR's Retail IO box (CP2105) used in NCR FastLane
SelfServ Checkout - R6C:

	https://www.ncr.com/product-catalog/ncr-fastlane-selfserv-checkout-r6c

Reported-by: Scott Russell <Scott.Russell2@ncr.com>
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/cp210x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index f906c1308f9f9..1bbe782c54ce7 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -55,6 +55,7 @@ static void cp210x_enable_event_mode(struct usb_serial_port *port);
 static void cp210x_disable_event_mode(struct usb_serial_port *port);
 
 static const struct usb_device_id id_table[] = {
+	{ USB_DEVICE(0x0404, 0x034C) },	/* NCR Retail IO Box */
 	{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
 	{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
 	{ USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
-- 
GitLab


From 3836a5ff4bb7f9dcd45735de0e0fb378b33ece01 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 1 Feb 2022 11:42:53 +0100
Subject: [PATCH 3946/4878] USB: serial: cp210x: add CPI Bulk Coin Recycler id

commit 6ca0c6283340d819bf9c7d8e76be33c9fbd903ab upstream.

Add the device id for the Crane Payment Innovation / Money Controls Bulk
Coin Recycler:

	https://www.cranepi.com/en/system/files/Support/OM_BCR_EN_V1-04_0.pdf

Reported-by: Scott Russell <Scott.Russell2@ncr.com>
Cc: stable@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/cp210x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 1bbe782c54ce7..7ac668023da87 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -73,6 +73,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
 	{ USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */
 	{ USB_DEVICE(0x0FDE, 0xCA05) }, /* OWL Wireless Electricity Monitor CM-160 */
+	{ USB_DEVICE(0x106F, 0x0003) },	/* CPI / Money Controls Bulk Coin Recycler */
 	{ USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
 	{ USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
 	{ USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
-- 
GitLab


From 6eabe53492c2f0a9c53a8cdd4393265ba82913d4 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Sun, 6 Feb 2022 02:56:26 +0100
Subject: [PATCH 3947/4878] speakup-dectlk: Restore pitch setting

commit bca828ccdd6548d24613d0cede04ada4dfb2f89c upstream.

d97a9d7aea04 ("staging/speakup: Add inflection synth parameter")
introduced the inflection parameter, but happened to drop the pitch
parameter from the dectlk driver. This restores it.

Cc: stable@vger.kernel.org
Fixes: d97a9d7aea04 ("staging/speakup: Add inflection synth parameter")
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20220206015626.aesbhvvdkmqsrbaw@begin
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/accessibility/speakup/speakup_dectlk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/accessibility/speakup/speakup_dectlk.c b/drivers/accessibility/speakup/speakup_dectlk.c
index ab6d61e80b1cb..d689ec5e276f1 100644
--- a/drivers/accessibility/speakup/speakup_dectlk.c
+++ b/drivers/accessibility/speakup/speakup_dectlk.c
@@ -44,6 +44,7 @@ static struct var_t vars[] = {
 	{ CAPS_START, .u.s = {"[:dv ap 160] " } },
 	{ CAPS_STOP, .u.s = {"[:dv ap 100 ] " } },
 	{ RATE, .u.n = {"[:ra %d] ", 180, 75, 650, 0, 0, NULL } },
+	{ PITCH, .u.n = {"[:dv ap %d] ", 122, 50, 350, 0, 0, NULL } },
 	{ INFLECTION, .u.n = {"[:dv pr %d] ", 100, 0, 10000, 0, 0, NULL } },
 	{ VOL, .u.n = {"[:dv g5 %d] ", 86, 60, 86, 0, 0, NULL } },
 	{ PUNCT, .u.n = {"[:pu %c] ", 0, 0, 2, 0, 0, "nsa" } },
-- 
GitLab


From 3c75d1017cb362b6a4e0935746ef5da28250919f Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Mon, 17 Jan 2022 16:31:08 +0530
Subject: [PATCH 3948/4878] phy: ti: Fix missing sentinel for clk_div_table

commit 6d1e6bcb31663ee83aaea1f171f3dbfe95dd4a69 upstream.

_get_table_maxdiv() tries to access "clk_div_table" array out of bound
defined in phy-j721e-wiz.c. Add a sentinel entry to prevent
the following global-out-of-bounds error reported by enabling KASAN.

[    9.552392] BUG: KASAN: global-out-of-bounds in _get_maxdiv+0xc0/0x148
[    9.558948] Read of size 4 at addr ffff8000095b25a4 by task kworker/u4:1/38
[    9.565926]
[    9.567441] CPU: 1 PID: 38 Comm: kworker/u4:1 Not tainted 5.16.0-116492-gdaadb3bd0e8d-dirty #360
[    9.576242] Hardware name: Texas Instruments J721e EVM (DT)
[    9.581832] Workqueue: events_unbound deferred_probe_work_func
[    9.587708] Call trace:
[    9.590174]  dump_backtrace+0x20c/0x218
[    9.594038]  show_stack+0x18/0x68
[    9.597375]  dump_stack_lvl+0x9c/0xd8
[    9.601062]  print_address_description.constprop.0+0x78/0x334
[    9.606830]  kasan_report+0x1f0/0x260
[    9.610517]  __asan_load4+0x9c/0xd8
[    9.614030]  _get_maxdiv+0xc0/0x148
[    9.617540]  divider_determine_rate+0x88/0x488
[    9.622005]  divider_round_rate_parent+0xc8/0x124
[    9.626729]  wiz_clk_div_round_rate+0x54/0x68
[    9.631113]  clk_core_determine_round_nolock+0x124/0x158
[    9.636448]  clk_core_round_rate_nolock+0x68/0x138
[    9.641260]  clk_core_set_rate_nolock+0x268/0x3a8
[    9.645987]  clk_set_rate+0x50/0xa8
[    9.649499]  cdns_sierra_phy_init+0x88/0x248
[    9.653794]  phy_init+0x98/0x108
[    9.657046]  cdns_pcie_enable_phy+0xa0/0x170
[    9.661340]  cdns_pcie_init_phy+0x250/0x2b0
[    9.665546]  j721e_pcie_probe+0x4b8/0x798
[    9.669579]  platform_probe+0x8c/0x108
[    9.673350]  really_probe+0x114/0x630
[    9.677037]  __driver_probe_device+0x18c/0x220
[    9.681505]  driver_probe_device+0xac/0x150
[    9.685712]  __device_attach_driver+0xec/0x170
[    9.690178]  bus_for_each_drv+0xf0/0x158
[    9.694124]  __device_attach+0x184/0x210
[    9.698070]  device_initial_probe+0x14/0x20
[    9.702277]  bus_probe_device+0xec/0x100
[    9.706223]  deferred_probe_work_func+0x124/0x180
[    9.710951]  process_one_work+0x4b0/0xbc0
[    9.714983]  worker_thread+0x74/0x5d0
[    9.718668]  kthread+0x214/0x230
[    9.721919]  ret_from_fork+0x10/0x20
[    9.725520]
[    9.727032] The buggy address belongs to the variable:
[    9.732183]  clk_div_table+0x24/0x440

Fixes: 091876cc355d ("phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC")
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20220117110108.4117-1-kishon@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/phy/ti/phy-j721e-wiz.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c
index dceac77148721..5536b8f4bfd13 100644
--- a/drivers/phy/ti/phy-j721e-wiz.c
+++ b/drivers/phy/ti/phy-j721e-wiz.c
@@ -177,6 +177,7 @@ static const struct clk_div_table clk_div_table[] = {
 	{ .val = 1, .div = 2, },
 	{ .val = 2, .div = 4, },
 	{ .val = 3, .div = 8, },
+	{ /* sentinel */ },
 };
 
 static struct wiz_clk_div_sel clk_div_sel[] = {
-- 
GitLab


From ad53060bdfc34bb2fcc5bfff8a6f56bd425b964a Mon Sep 17 00:00:00 2001
From: Armin Wolf <W_Armin@gmx.de>
Date: Thu, 21 Oct 2021 21:05:31 +0200
Subject: [PATCH 3949/4878] hwmon: (dell-smm) Speed up setting of fan speed
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit c0d79987a0d82671bff374c07f2201f9bdf4aaa2 upstream.

When setting the fan speed, i8k_set_fan() calls i8k_get_fan_status(),
causing an unnecessary SMM call since from the two users of this
function, only i8k_ioctl_unlocked() needs to know the new fan status
while dell_smm_write() ignores the new fan status.
Since SMM calls can be very slow while also making error reporting
difficult for dell_smm_write(), remove the function call from
i8k_set_fan() and call it separately in i8k_ioctl_unlocked().

Tested on a Dell Inspiron 3505.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20211021190531.17379-6-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/dell-smm-hwmon.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 87f401100466d..10c7b6295b02e 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -317,7 +317,7 @@ static int i8k_enable_fan_auto_mode(bool enable)
 }
 
 /*
- * Set the fan speed (off, low, high). Returns the new fan status.
+ * Set the fan speed (off, low, high, ...).
  */
 static int i8k_set_fan(int fan, int speed)
 {
@@ -329,7 +329,7 @@ static int i8k_set_fan(int fan, int speed)
 	speed = (speed < 0) ? 0 : ((speed > i8k_fan_max) ? i8k_fan_max : speed);
 	regs.ebx = (fan & 0xff) | (speed << 8);
 
-	return i8k_smm(&regs) ? : i8k_get_fan_status(fan);
+	return i8k_smm(&regs);
 }
 
 static int i8k_get_temp_type(int sensor)
@@ -443,7 +443,7 @@ static int
 i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
 {
 	int val = 0;
-	int speed;
+	int speed, err;
 	unsigned char buff[16];
 	int __user *argp = (int __user *)arg;
 
@@ -504,7 +504,11 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
 		if (copy_from_user(&speed, argp + 1, sizeof(int)))
 			return -EFAULT;
 
-		val = i8k_set_fan(val, speed);
+		err = i8k_set_fan(val, speed);
+		if (err < 0)
+			return err;
+
+		val = i8k_get_fan_status(val);
 		break;
 
 	default:
-- 
GitLab


From 3b10ebeb95d7e3ecfcd28c0450099245772d8805 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Wed, 2 Feb 2022 16:05:16 -0700
Subject: [PATCH 3950/4878] Makefile.extrawarn: Move -Wunaligned-access to W=1

commit 1cf5f151d25fcca94689efd91afa0253621fb33a upstream.

-Wunaligned-access is a new warning in clang that is default enabled for
arm and arm64 under certain circumstances within the clang frontend (see
LLVM commit below). On v5.17-rc2, an ARCH=arm allmodconfig build shows
1284 total/70 unique instances of this warning (most of the instances
are in header files), which is quite noisy.

To keep a normal build green through CONFIG_WERROR, only show this
warning with W=1, which will allow automated build systems to catch new
instances of the warning so that the total number can be driven down to
zero eventually since catching unaligned accesses at compile time would
be generally useful.

Cc: stable@vger.kernel.org
Link: https://github.com/llvm/llvm-project/commit/35737df4dcd28534bd3090157c224c19b501278a
Link: https://github.com/ClangBuiltLinux/linux/issues/1569
Link: https://github.com/ClangBuiltLinux/linux/issues/1576
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/Makefile.extrawarn | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 6baee1200615d..23d3967786b9f 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -51,6 +51,7 @@ KBUILD_CFLAGS += -Wno-sign-compare
 KBUILD_CFLAGS += -Wno-format-zero-length
 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
 KBUILD_CFLAGS += -Wno-tautological-constant-out-of-range-compare
+KBUILD_CFLAGS += $(call cc-disable-warning, unaligned-access)
 endif
 
 endif
-- 
GitLab


From 199dab00f0439f50e83c298ea464da179bd2432b Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Wed, 9 Feb 2022 08:36:01 +0100
Subject: [PATCH 3951/4878] can: isotp: fix error path in isotp_sendmsg() to
 unlock wait queue

commit 8375dfac4f683e1b2c5956d919d36aeedad46699 upstream.

Commit 43a08c3bdac4 ("can: isotp: isotp_sendmsg(): fix TX buffer concurrent
access in isotp_sendmsg()") introduced a new locking scheme that may render
the userspace application in a locking state when an error is detected.
This issue shows up under high load on simultaneously running isotp channels
with identical configuration which is against the ISO specification and
therefore breaks any reasonable PDU communication anyway.

Fixes: 43a08c3bdac4 ("can: isotp: isotp_sendmsg(): fix TX buffer concurrent access in isotp_sendmsg()")
Link: https://lore.kernel.org/all/20220209073601.25728-1-socketcan@hartkopp.net
Cc: stable@vger.kernel.org
Cc: Ziyang Xuan <william.xuanziyang@huawei.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index f348fbb2e7dd4..37db4d232313d 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -885,24 +885,24 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 
 	if (!size || size > MAX_MSG_LENGTH) {
 		err = -EINVAL;
-		goto err_out;
+		goto err_out_drop;
 	}
 
 	err = memcpy_from_msg(so->tx.buf, msg, size);
 	if (err < 0)
-		goto err_out;
+		goto err_out_drop;
 
 	dev = dev_get_by_index(sock_net(sk), so->ifindex);
 	if (!dev) {
 		err = -ENXIO;
-		goto err_out;
+		goto err_out_drop;
 	}
 
 	skb = sock_alloc_send_skb(sk, so->ll.mtu + sizeof(struct can_skb_priv),
 				  msg->msg_flags & MSG_DONTWAIT, &err);
 	if (!skb) {
 		dev_put(dev);
-		goto err_out;
+		goto err_out_drop;
 	}
 
 	can_skb_reserve(skb);
@@ -967,7 +967,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	if (err) {
 		pr_notice_once("can-isotp: %s: can_send_ret %d\n",
 			       __func__, err);
-		goto err_out;
+		goto err_out_drop;
 	}
 
 	if (wait_tx_done) {
@@ -980,6 +980,9 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 
 	return size;
 
+err_out_drop:
+	/* drop this PDU and unlock a potential wait queue */
+	old_state = ISOTP_IDLE;
 err_out:
 	so->tx.state = old_state;
 	if (so->tx.state == ISOTP_IDLE)
-- 
GitLab


From 57c5d7d42076c64ddbefcc6e5663ed8b8d62ae6d Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Mon, 7 Feb 2022 10:05:16 -0800
Subject: [PATCH 3952/4878] scsi: lpfc: Remove NVMe support if kernel has
 NVME_FC disabled

commit c80b27cfd93ba9f5161383f798414609e84729f3 upstream.

The driver is initiating NVMe PRLIs to determine device NVMe support.  This
should not be occurring if CONFIG_NVME_FC support is disabled.

Correct this by changing the default value for FC4 support. Currently it
defaults to FCP and NVMe. With change, when NVME_FC support is not enabled
in the kernel, the default value is just FCP.

Link: https://lore.kernel.org/r/20220207180516.73052-1-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/lpfc/lpfc.h      | 13 ++++++++++---
 drivers/scsi/lpfc/lpfc_attr.c |  4 ++--
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 0273bf3918ff3..d1894539efc30 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -898,6 +898,16 @@ struct lpfc_hba {
 	uint32_t cfg_hostmem_hgp;
 	uint32_t cfg_log_verbose;
 	uint32_t cfg_enable_fc4_type;
+#define LPFC_ENABLE_FCP  1
+#define LPFC_ENABLE_NVME 2
+#define LPFC_ENABLE_BOTH 3
+#if (IS_ENABLED(CONFIG_NVME_FC))
+#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
+#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_BOTH
+#else
+#define LPFC_MAX_ENBL_FC4_TYPE LPFC_ENABLE_FCP
+#define LPFC_DEF_ENBL_FC4_TYPE LPFC_ENABLE_FCP
+#endif
 	uint32_t cfg_aer_support;
 	uint32_t cfg_sriov_nr_virtfn;
 	uint32_t cfg_request_firmware_upgrade;
@@ -918,9 +928,6 @@ struct lpfc_hba {
 	uint32_t cfg_ras_fwlog_func;
 	uint32_t cfg_enable_bbcr;	/* Enable BB Credit Recovery */
 	uint32_t cfg_enable_dpp;	/* Enable Direct Packet Push */
-#define LPFC_ENABLE_FCP  1
-#define LPFC_ENABLE_NVME 2
-#define LPFC_ENABLE_BOTH 3
 	uint32_t cfg_enable_pbde;
 	struct nvmet_fc_target_port *targetport;
 	lpfc_vpd_t vpd;		/* vital product data */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 727b7ba4d8f82..b73d5d9494021 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3797,8 +3797,8 @@ LPFC_ATTR_R(nvmet_mrq_post,
  *                    3 - register both FCP and NVME
  * Supported values are [1,3]. Default value is 3
  */
-LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_BOTH,
-	    LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH,
+LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE,
+	    LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE,
 	    "Enable FC4 Protocol support - FCP / NVME");
 
 /*
-- 
GitLab


From 759aeacdfe7082d17ecbfcae0dfc0e9740b9416d Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Mon, 7 Feb 2022 10:04:42 -0800
Subject: [PATCH 3953/4878] scsi: lpfc: Reduce log messages seen after firmware
 download

commit 5852ed2a6a39c862c8a3fdf646e1f4e01b91d710 upstream.

Messages around firmware download were incorrectly tagged as being related
to discovery trace events. Thus, firmware download status ended up dumping
the trace log as well as the firmware update message. As there were a
couple of log messages in this state, the trace log was dumped multiple
times.

Resolve this by converting from trace events to SLI events.

Link: https://lore.kernel.org/r/20220207180442.72836-1-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/lpfc/lpfc_init.c | 2 +-
 drivers/scsi/lpfc/lpfc_sli.c  | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 37612299a34a1..1149bfc42fe64 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1998,7 +1998,7 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
 		}
 		if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
 		    reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
+			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 					"3143 Port Down: Firmware Update "
 					"Detected\n");
 			en_rn_msg = false;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 1a9522baba484..4587127b67f7b 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -12402,6 +12402,7 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
 	uint32_t uerr_sta_hi, uerr_sta_lo;
 	uint32_t if_type, portsmphr;
 	struct lpfc_register portstat_reg;
+	u32 logmask;
 
 	/*
 	 * For now, use the SLI4 device internal unrecoverable error
@@ -12452,7 +12453,12 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
 				readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
 			phba->work_status[1] =
 				readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
-			lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
+			logmask = LOG_TRACE_EVENT;
+			if (phba->work_status[0] ==
+				SLIPORT_ERR1_REG_ERR_CODE_2 &&
+			    phba->work_status[1] == SLIPORT_ERR2_REG_FW_RESTART)
+				logmask = LOG_SLI;
+			lpfc_printf_log(phba, KERN_ERR, logmask,
 					"2885 Port Status Event: "
 					"port status reg 0x%x, "
 					"port smphr reg 0x%x, "
-- 
GitLab


From ce3ca12c632a6b3db26ad6995cf6cbadc344cbb0 Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@ew.tq-group.com>
Date: Sat, 29 Jan 2022 14:39:05 +0800
Subject: [PATCH 3954/4878] arm64: dts: imx8mq: fix lcdif port node

commit 91f6d5f181f6629dd74ab71759fe92d3f4eff966 upstream.

The port node does not have a unit-address, remove it.
This fixes the warnings:
lcd-controller@30320000: 'port' is a required property
lcd-controller@30320000: 'port@0' does not match any of the regexes:
'pinctrl-[0-9]+'

Fixes: commit d0081bd02a03 ("arm64: dts: imx8mq: Add NWL MIPI DSI controller")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index c86cf786f4061..8d0d41973ff54 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -524,7 +524,7 @@
 				assigned-clock-rates = <0>, <0>, <0>, <594000000>;
 				status = "disabled";
 
-				port@0 {
+				port {
 					lcdif_mipi_dsi: endpoint {
 						remote-endpoint = <&mipi_dsi_lcdif_in>;
 					};
-- 
GitLab


From f6b5d51976fcefef5732da3e3feb3ccff680f7c8 Mon Sep 17 00:00:00 2001
From: Song Liu <song@kernel.org>
Date: Thu, 3 Feb 2022 16:40:57 -0800
Subject: [PATCH 3955/4878] perf: Fix list corruption in perf_cgroup_switch()

commit 5f4e5ce638e6a490b976ade4a40017b40abb2da0 upstream.

There's list corruption on cgrp_cpuctx_list. This happens on the
following path:

  perf_cgroup_switch: list_for_each_entry(cgrp_cpuctx_list)
      cpu_ctx_sched_in
         ctx_sched_in
            ctx_pinned_sched_in
              merge_sched_in
                  perf_cgroup_event_disable: remove the event from the list

Use list_for_each_entry_safe() to allow removing an entry during
iteration.

Fixes: 058fe1c0440e ("perf/core: Make cgroup switch visit only cpuctxs with cgroup events")
Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220204004057.2961252-1-song@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/events/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 6d3a67bef3951..c8b3f94f0dbb3 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -838,7 +838,7 @@ static DEFINE_PER_CPU(struct list_head, cgrp_cpuctx_list);
  */
 static void perf_cgroup_switch(struct task_struct *task, int mode)
 {
-	struct perf_cpu_context *cpuctx;
+	struct perf_cpu_context *cpuctx, *tmp;
 	struct list_head *list;
 	unsigned long flags;
 
@@ -849,7 +849,7 @@ static void perf_cgroup_switch(struct task_struct *task, int mode)
 	local_irq_save(flags);
 
 	list = this_cpu_ptr(&cgrp_cpuctx_list);
-	list_for_each_entry(cpuctx, list, cgrp_cpuctx_entry) {
+	list_for_each_entry_safe(cpuctx, tmp, list, cgrp_cpuctx_entry) {
 		WARN_ON_ONCE(cpuctx->ctx.nr_cgroups == 0);
 
 		perf_ctx_lock(cpuctx, cpuctx->task_ctx);
-- 
GitLab


From cb86e511e78e796de6947b8f3acca1b7c76fb2ff Mon Sep 17 00:00:00 2001
From: Vijayanand Jitta <quic_vjitta@quicinc.com>
Date: Mon, 31 Jan 2022 12:42:35 +0530
Subject: [PATCH 3956/4878] iommu: Fix potential use-after-free during probe

commit b54240ad494300ff0994c4539a531727874381f4 upstream.

Kasan has reported the following use after free on dev->iommu.
when a device probe fails and it is in process of freeing dev->iommu
in dev_iommu_free function, a deferred_probe_work_func runs in parallel
and tries to access dev->iommu->fwspec in of_iommu_configure path thus
causing use after free.

BUG: KASAN: use-after-free in of_iommu_configure+0xb4/0x4a4
Read of size 8 at addr ffffff87a2f1acb8 by task kworker/u16:2/153

Workqueue: events_unbound deferred_probe_work_func
Call trace:
 dump_backtrace+0x0/0x33c
 show_stack+0x18/0x24
 dump_stack_lvl+0x16c/0x1e0
 print_address_description+0x84/0x39c
 __kasan_report+0x184/0x308
 kasan_report+0x50/0x78
 __asan_load8+0xc0/0xc4
 of_iommu_configure+0xb4/0x4a4
 of_dma_configure_id+0x2fc/0x4d4
 platform_dma_configure+0x40/0x5c
 really_probe+0x1b4/0xb74
 driver_probe_device+0x11c/0x228
 __device_attach_driver+0x14c/0x304
 bus_for_each_drv+0x124/0x1b0
 __device_attach+0x25c/0x334
 device_initial_probe+0x24/0x34
 bus_probe_device+0x78/0x134
 deferred_probe_work_func+0x130/0x1a8
 process_one_work+0x4c8/0x970
 worker_thread+0x5c8/0xaec
 kthread+0x1f8/0x220
 ret_from_fork+0x10/0x18

Allocated by task 1:
 ____kasan_kmalloc+0xd4/0x114
 __kasan_kmalloc+0x10/0x1c
 kmem_cache_alloc_trace+0xe4/0x3d4
 __iommu_probe_device+0x90/0x394
 probe_iommu_group+0x70/0x9c
 bus_for_each_dev+0x11c/0x19c
 bus_iommu_probe+0xb8/0x7d4
 bus_set_iommu+0xcc/0x13c
 arm_smmu_bus_init+0x44/0x130 [arm_smmu]
 arm_smmu_device_probe+0xb88/0xc54 [arm_smmu]
 platform_drv_probe+0xe4/0x13c
 really_probe+0x2c8/0xb74
 driver_probe_device+0x11c/0x228
 device_driver_attach+0xf0/0x16c
 __driver_attach+0x80/0x320
 bus_for_each_dev+0x11c/0x19c
 driver_attach+0x38/0x48
 bus_add_driver+0x1dc/0x3a4
 driver_register+0x18c/0x244
 __platform_driver_register+0x88/0x9c
 init_module+0x64/0xff4 [arm_smmu]
 do_one_initcall+0x17c/0x2f0
 do_init_module+0xe8/0x378
 load_module+0x3f80/0x4a40
 __se_sys_finit_module+0x1a0/0x1e4
 __arm64_sys_finit_module+0x44/0x58
 el0_svc_common+0x100/0x264
 do_el0_svc+0x38/0xa4
 el0_svc+0x20/0x30
 el0_sync_handler+0x68/0xac
 el0_sync+0x160/0x180

Freed by task 1:
 kasan_set_track+0x4c/0x84
 kasan_set_free_info+0x28/0x4c
 ____kasan_slab_free+0x120/0x15c
 __kasan_slab_free+0x18/0x28
 slab_free_freelist_hook+0x204/0x2fc
 kfree+0xfc/0x3a4
 __iommu_probe_device+0x284/0x394
 probe_iommu_group+0x70/0x9c
 bus_for_each_dev+0x11c/0x19c
 bus_iommu_probe+0xb8/0x7d4
 bus_set_iommu+0xcc/0x13c
 arm_smmu_bus_init+0x44/0x130 [arm_smmu]
 arm_smmu_device_probe+0xb88/0xc54 [arm_smmu]
 platform_drv_probe+0xe4/0x13c
 really_probe+0x2c8/0xb74
 driver_probe_device+0x11c/0x228
 device_driver_attach+0xf0/0x16c
 __driver_attach+0x80/0x320
 bus_for_each_dev+0x11c/0x19c
 driver_attach+0x38/0x48
 bus_add_driver+0x1dc/0x3a4
 driver_register+0x18c/0x244
 __platform_driver_register+0x88/0x9c
 init_module+0x64/0xff4 [arm_smmu]
 do_one_initcall+0x17c/0x2f0
 do_init_module+0xe8/0x378
 load_module+0x3f80/0x4a40
 __se_sys_finit_module+0x1a0/0x1e4
 __arm64_sys_finit_module+0x44/0x58
 el0_svc_common+0x100/0x264
 do_el0_svc+0x38/0xa4
 el0_svc+0x20/0x30
 el0_sync_handler+0x68/0xac
 el0_sync+0x160/0x180

Fix this by setting dev->iommu to NULL first and
then freeing dev_iommu structure in dev_iommu_free
function.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Vijayanand Jitta <quic_vjitta@quicinc.com>
Link: https://lore.kernel.org/r/1643613155-20215-1-git-send-email-quic_vjitta@quicinc.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/iommu.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index bcf060b5cf85b..9d65557dfb2ce 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -185,9 +185,14 @@ static struct dev_iommu *dev_iommu_get(struct device *dev)
 
 static void dev_iommu_free(struct device *dev)
 {
-	iommu_fwspec_free(dev);
-	kfree(dev->iommu);
+	struct dev_iommu *param = dev->iommu;
+
 	dev->iommu = NULL;
+	if (param->fwspec) {
+		fwnode_handle_put(param->fwspec->iommu_fwnode);
+		kfree(param->fwspec);
+	}
+	kfree(param);
 }
 
 static int __iommu_probe_device(struct device *dev, struct list_head *group_list)
-- 
GitLab


From 3969aba589d663b2a704f31555c2caead75a1646 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 16 Feb 2022 12:54:31 +0100
Subject: [PATCH 3957/4878] Linux 5.10.101

Link: https://lore.kernel.org/r/20220214092458.668376521@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>                              =
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Slade Watkins <slade@sladewatkins.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index fb96cca42ddb5..32d9ed44e1c47 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 100
+SUBLEVEL = 101
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 8418d018c1686298cac27362797a3c8d2af8a669 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 11 Feb 2022 09:36:26 -0800
Subject: [PATCH 3958/4878] ANDROID: Revert "tracefs: Have tracefs directories
 not set OTH permission bits by default"

This reverts commit e2c27194fcd9f9703d927aeea104ec304bcf0ae3.

This change breaks Android userspace tools (tracepoint bpf programs,
simpleperf, atrace, perfetto, ...) that assume access to tracefs.

On Android T and S (QPR2) this is fixed by adding a gid mount option
in userspace, for devices with older kernels the permission change
needs to be reverted.

Bug: 219393750
Bug: 217150407
Bug: 216676030
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I53a63c42b4cf1133a6a2fc1674380ffd8f331392
(cherry picked from commit d2392cf8b12d8c1526e4d5766c642a47aecc28e7)
---
 fs/tracefs/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index ade05887070dd..5a3f09d7d8217 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -504,8 +504,7 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
 	if (unlikely(!inode))
 		return failed_creating(dentry);
 
-	/* Do not set bits for OTH */
-	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUSR| S_IRGRP | S_IXUSR | S_IXGRP;
+	inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
 	inode->i_op = ops;
 	inode->i_fop = &simple_dir_operations;
 	inode->i_uid = d_inode(dentry->d_parent)->i_uid;
-- 
GitLab


From 7dd41bf0572899751ceb1f51a62c376a8cc086c5 Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Fri, 11 Feb 2022 13:41:41 -0800
Subject: [PATCH 3959/4878] ANDROID: Update comment in
 build.config.gki.aarch64.

as a response to comments in I7e2c62e7dd97c6b.

Test: TH
Bug: 215745244
Change-Id: I2a2104216107dd5e22d4b1c6d4d978f0c79a3004
Signed-off-by: Yifan Hong <elsk@google.com>
---
 build.config.gki.aarch64 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
index 924e955d4f707..37038a5ccbfbd 100644
--- a/build.config.gki.aarch64
+++ b/build.config.gki.aarch64
@@ -7,7 +7,7 @@ Image.lz4
 "
 
 TIDY_ABI=1
-# Sync with BUILD.bazel, define_common_kernels() if the list differs from
+# Update BUILD.bazel, define_common_kernels() if the list differs from
 # android/abi_gki_aarch64* in the filesystem.
 KMI_SYMBOL_LIST=android/abi_gki_aarch64
 ADDITIONAL_KMI_SYMBOL_LISTS="
@@ -23,7 +23,7 @@ FILES="${FILES}
 arch/arm64/boot/Image.lz4
 "
 
-# Sync with BUILD.bazel, define_common_kernels() if the value is not 1.
+# Update BUILD.bazel, define_common_kernels() if the value is not 1.
 TRIM_NONLISTED_KMI=${TRIM_NONLISTED_KMI:-1}
 KMI_SYMBOL_LIST_STRICT_MODE=${KMI_SYMBOL_LIST_STRICT_MODE:-1}
 
-- 
GitLab


From 51aee9ecaf77458d6bbeb827320141aa46dc9a36 Mon Sep 17 00:00:00 2001
From: Badhri Jagan Sridharan <badhri@google.com>
Date: Mon, 14 Feb 2022 19:04:31 -0800
Subject: [PATCH 3960/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list to allow modifying
source capabilities of usb-c port.

Bug: 206108037
Bug: 199358329
Bug: 201006190
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Change-Id: I99728c80f5767dc4a25e3dfd44c73b6afbd9c940
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 3fc15a438a438..f7e438258efed 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2172,6 +2172,7 @@
   __traceiter_android_vh_typec_tcpci_override_toggling
   __traceiter_android_vh_typec_tcpm_get_timer
   __traceiter_android_vh_typec_tcpm_log
+  __traceiter_android_vh_typec_tcpm_modify_src_caps
   __traceiter_android_vh_ufs_check_int_errors
   __traceiter_android_vh_ufs_compl_command
   __traceiter_android_vh_ufs_fill_prdt
@@ -2261,6 +2262,7 @@
   __tracepoint_android_vh_typec_tcpci_override_toggling
   __tracepoint_android_vh_typec_tcpm_get_timer
   __tracepoint_android_vh_typec_tcpm_log
+  __tracepoint_android_vh_typec_tcpm_modify_src_caps
   __tracepoint_android_vh_ufs_check_int_errors
   __tracepoint_android_vh_ufs_compl_command
   __tracepoint_android_vh_ufs_fill_prdt
-- 
GitLab


From e0d05d271b04d0624815be40c09d39575fc527d7 Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Thu, 25 Nov 2021 14:36:57 +0000
Subject: [PATCH 3961/4878] ANDROID: firmware: arm_ffa: Move constants to
 header file

FF-A function IDs and error codes will be needed in the hypervisor too,
so move to them to the header file where they can be shared. Rename the
version constants with an "FFA_" prefix so that they are less likely
to clash with other code in the tree.

Co-developed-by: Will Deacon <willdeacon@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I00ed487279fdfb61ea34ae99140c6fac8ee89187
---
 drivers/firmware/arm_ffa/driver.c | 101 +++---------------------------
 include/linux/arm_ffa.h           |  83 ++++++++++++++++++++++++
 2 files changed, 93 insertions(+), 91 deletions(-)

diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 14f900047ac0c..fc6d3b9bd4724 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -36,81 +36,6 @@
 #include "common.h"
 
 #define FFA_DRIVER_VERSION	FFA_VERSION_1_0
-
-#define FFA_SMC(calling_convention, func_num)				\
-	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, (calling_convention),	\
-			   ARM_SMCCC_OWNER_STANDARD, (func_num))
-
-#define FFA_SMC_32(func_num)	FFA_SMC(ARM_SMCCC_SMC_32, (func_num))
-#define FFA_SMC_64(func_num)	FFA_SMC(ARM_SMCCC_SMC_64, (func_num))
-
-#define FFA_ERROR			FFA_SMC_32(0x60)
-#define FFA_SUCCESS			FFA_SMC_32(0x61)
-#define FFA_INTERRUPT			FFA_SMC_32(0x62)
-#define FFA_VERSION			FFA_SMC_32(0x63)
-#define FFA_FEATURES			FFA_SMC_32(0x64)
-#define FFA_RX_RELEASE			FFA_SMC_32(0x65)
-#define FFA_RXTX_MAP			FFA_SMC_32(0x66)
-#define FFA_FN64_RXTX_MAP		FFA_SMC_64(0x66)
-#define FFA_RXTX_UNMAP			FFA_SMC_32(0x67)
-#define FFA_PARTITION_INFO_GET		FFA_SMC_32(0x68)
-#define FFA_ID_GET			FFA_SMC_32(0x69)
-#define FFA_MSG_POLL			FFA_SMC_32(0x6A)
-#define FFA_MSG_WAIT			FFA_SMC_32(0x6B)
-#define FFA_YIELD			FFA_SMC_32(0x6C)
-#define FFA_RUN				FFA_SMC_32(0x6D)
-#define FFA_MSG_SEND			FFA_SMC_32(0x6E)
-#define FFA_MSG_SEND_DIRECT_REQ		FFA_SMC_32(0x6F)
-#define FFA_FN64_MSG_SEND_DIRECT_REQ	FFA_SMC_64(0x6F)
-#define FFA_MSG_SEND_DIRECT_RESP	FFA_SMC_32(0x70)
-#define FFA_FN64_MSG_SEND_DIRECT_RESP	FFA_SMC_64(0x70)
-#define FFA_MEM_DONATE			FFA_SMC_32(0x71)
-#define FFA_FN64_MEM_DONATE		FFA_SMC_64(0x71)
-#define FFA_MEM_LEND			FFA_SMC_32(0x72)
-#define FFA_FN64_MEM_LEND		FFA_SMC_64(0x72)
-#define FFA_MEM_SHARE			FFA_SMC_32(0x73)
-#define FFA_FN64_MEM_SHARE		FFA_SMC_64(0x73)
-#define FFA_MEM_RETRIEVE_REQ		FFA_SMC_32(0x74)
-#define FFA_FN64_MEM_RETRIEVE_REQ	FFA_SMC_64(0x74)
-#define FFA_MEM_RETRIEVE_RESP		FFA_SMC_32(0x75)
-#define FFA_MEM_RELINQUISH		FFA_SMC_32(0x76)
-#define FFA_MEM_RECLAIM			FFA_SMC_32(0x77)
-#define FFA_MEM_OP_PAUSE		FFA_SMC_32(0x78)
-#define FFA_MEM_OP_RESUME		FFA_SMC_32(0x79)
-#define FFA_MEM_FRAG_RX			FFA_SMC_32(0x7A)
-#define FFA_MEM_FRAG_TX			FFA_SMC_32(0x7B)
-#define FFA_NORMAL_WORLD_RESUME		FFA_SMC_32(0x7C)
-
-/*
- * For some calls it is necessary to use SMC64 to pass or return 64-bit values.
- * For such calls FFA_FN_NATIVE(name) will choose the appropriate
- * (native-width) function ID.
- */
-#ifdef CONFIG_64BIT
-#define FFA_FN_NATIVE(name)	FFA_FN64_##name
-#else
-#define FFA_FN_NATIVE(name)	FFA_##name
-#endif
-
-/* FFA error codes. */
-#define FFA_RET_SUCCESS            (0)
-#define FFA_RET_NOT_SUPPORTED      (-1)
-#define FFA_RET_INVALID_PARAMETERS (-2)
-#define FFA_RET_NO_MEMORY          (-3)
-#define FFA_RET_BUSY               (-4)
-#define FFA_RET_INTERRUPTED        (-5)
-#define FFA_RET_DENIED             (-6)
-#define FFA_RET_RETRY              (-7)
-#define FFA_RET_ABORTED            (-8)
-
-#define MAJOR_VERSION_MASK	GENMASK(30, 16)
-#define MINOR_VERSION_MASK	GENMASK(15, 0)
-#define MAJOR_VERSION(x)	((u16)(FIELD_GET(MAJOR_VERSION_MASK, (x))))
-#define MINOR_VERSION(x)	((u16)(FIELD_GET(MINOR_VERSION_MASK, (x))))
-#define PACK_VERSION_INFO(major, minor)			\
-	(FIELD_PREP(MAJOR_VERSION_MASK, (major)) |	\
-	 FIELD_PREP(MINOR_VERSION_MASK, (minor)))
-#define FFA_VERSION_1_0		PACK_VERSION_INFO(1, 0)
 #define FFA_MIN_VERSION		FFA_VERSION_1_0
 
 #define SENDER_ID_MASK		GENMASK(31, 16)
@@ -120,12 +45,6 @@
 #define PACK_TARGET_INFO(s, r)		\
 	(FIELD_PREP(SENDER_ID_MASK, (s)) | FIELD_PREP(RECEIVER_ID_MASK, (r)))
 
-/*
- * FF-A specification mentions explicitly about '4K pages'. This should
- * not be confused with the kernel PAGE_SIZE, which is the translation
- * granule kernel is configured and may be one among 4K, 16K and 64K.
- */
-#define FFA_PAGE_SIZE		SZ_4K
 /*
  * Keeping RX TX buffer size as 4K for now
  * 64K may be preferred to keep it min a page in 64K PAGE_SIZE config
@@ -177,9 +96,9 @@ static struct ffa_drv_info *drv_info;
  */
 static u32 ffa_compatible_version_find(u32 version)
 {
-	u16 major = MAJOR_VERSION(version), minor = MINOR_VERSION(version);
-	u16 drv_major = MAJOR_VERSION(FFA_DRIVER_VERSION);
-	u16 drv_minor = MINOR_VERSION(FFA_DRIVER_VERSION);
+	u16 major = FFA_MAJOR_VERSION(version), minor = FFA_MINOR_VERSION(version);
+	u16 drv_major = FFA_MAJOR_VERSION(FFA_DRIVER_VERSION);
+	u16 drv_minor = FFA_MINOR_VERSION(FFA_DRIVER_VERSION);
 
 	if ((major < drv_major) || (major == drv_major && minor <= drv_minor))
 		return version;
@@ -203,16 +122,16 @@ static int ffa_version_check(u32 *version)
 
 	if (ver.a0 < FFA_MIN_VERSION) {
 		pr_err("Incompatible v%d.%d! Earliest supported v%d.%d\n",
-		       MAJOR_VERSION(ver.a0), MINOR_VERSION(ver.a0),
-		       MAJOR_VERSION(FFA_MIN_VERSION),
-		       MINOR_VERSION(FFA_MIN_VERSION));
+		       FFA_MAJOR_VERSION(ver.a0), FFA_MINOR_VERSION(ver.a0),
+		       FFA_MAJOR_VERSION(FFA_MIN_VERSION),
+		       FFA_MINOR_VERSION(FFA_MIN_VERSION));
 		return -EINVAL;
 	}
 
-	pr_info("Driver version %d.%d\n", MAJOR_VERSION(FFA_DRIVER_VERSION),
-		MINOR_VERSION(FFA_DRIVER_VERSION));
-	pr_info("Firmware version %d.%d found\n", MAJOR_VERSION(ver.a0),
-		MINOR_VERSION(ver.a0));
+	pr_info("Driver version %d.%d\n", FFA_MAJOR_VERSION(FFA_DRIVER_VERSION),
+		FFA_MINOR_VERSION(FFA_DRIVER_VERSION));
+	pr_info("Firmware version %d.%d found\n", FFA_MAJOR_VERSION(ver.a0),
+		FFA_MINOR_VERSION(ver.a0));
 	*version = ffa_compatible_version_find(ver.a0);
 
 	return 0;
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 85651e41ded86..27310b3e97616 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -11,6 +11,89 @@
 #include <linux/types.h>
 #include <linux/uuid.h>
 
+#define FFA_SMC(calling_convention, func_num)				\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, (calling_convention),	\
+			   ARM_SMCCC_OWNER_STANDARD, (func_num))
+
+#define FFA_SMC_32(func_num)	FFA_SMC(ARM_SMCCC_SMC_32, (func_num))
+#define FFA_SMC_64(func_num)	FFA_SMC(ARM_SMCCC_SMC_64, (func_num))
+
+#define FFA_ERROR			FFA_SMC_32(0x60)
+#define FFA_SUCCESS			FFA_SMC_32(0x61)
+#define FFA_INTERRUPT			FFA_SMC_32(0x62)
+#define FFA_VERSION			FFA_SMC_32(0x63)
+#define FFA_FEATURES			FFA_SMC_32(0x64)
+#define FFA_RX_RELEASE			FFA_SMC_32(0x65)
+#define FFA_RXTX_MAP			FFA_SMC_32(0x66)
+#define FFA_FN64_RXTX_MAP		FFA_SMC_64(0x66)
+#define FFA_RXTX_UNMAP			FFA_SMC_32(0x67)
+#define FFA_PARTITION_INFO_GET		FFA_SMC_32(0x68)
+#define FFA_ID_GET			FFA_SMC_32(0x69)
+#define FFA_MSG_POLL			FFA_SMC_32(0x6A)
+#define FFA_MSG_WAIT			FFA_SMC_32(0x6B)
+#define FFA_YIELD			FFA_SMC_32(0x6C)
+#define FFA_RUN				FFA_SMC_32(0x6D)
+#define FFA_MSG_SEND			FFA_SMC_32(0x6E)
+#define FFA_MSG_SEND_DIRECT_REQ		FFA_SMC_32(0x6F)
+#define FFA_FN64_MSG_SEND_DIRECT_REQ	FFA_SMC_64(0x6F)
+#define FFA_MSG_SEND_DIRECT_RESP	FFA_SMC_32(0x70)
+#define FFA_FN64_MSG_SEND_DIRECT_RESP	FFA_SMC_64(0x70)
+#define FFA_MEM_DONATE			FFA_SMC_32(0x71)
+#define FFA_FN64_MEM_DONATE		FFA_SMC_64(0x71)
+#define FFA_MEM_LEND			FFA_SMC_32(0x72)
+#define FFA_FN64_MEM_LEND		FFA_SMC_64(0x72)
+#define FFA_MEM_SHARE			FFA_SMC_32(0x73)
+#define FFA_FN64_MEM_SHARE		FFA_SMC_64(0x73)
+#define FFA_MEM_RETRIEVE_REQ		FFA_SMC_32(0x74)
+#define FFA_FN64_MEM_RETRIEVE_REQ	FFA_SMC_64(0x74)
+#define FFA_MEM_RETRIEVE_RESP		FFA_SMC_32(0x75)
+#define FFA_MEM_RELINQUISH		FFA_SMC_32(0x76)
+#define FFA_MEM_RECLAIM			FFA_SMC_32(0x77)
+#define FFA_MEM_OP_PAUSE		FFA_SMC_32(0x78)
+#define FFA_MEM_OP_RESUME		FFA_SMC_32(0x79)
+#define FFA_MEM_FRAG_RX			FFA_SMC_32(0x7A)
+#define FFA_MEM_FRAG_TX			FFA_SMC_32(0x7B)
+#define FFA_NORMAL_WORLD_RESUME		FFA_SMC_32(0x7C)
+
+/*
+ * For some calls it is necessary to use SMC64 to pass or return 64-bit values.
+ * For such calls FFA_FN_NATIVE(name) will choose the appropriate
+ * (native-width) function ID.
+ */
+#ifdef CONFIG_64BIT
+#define FFA_FN_NATIVE(name)	FFA_FN64_##name
+#else
+#define FFA_FN_NATIVE(name)	FFA_##name
+#endif
+
+/* FFA error codes. */
+#define FFA_RET_SUCCESS            (0)
+#define FFA_RET_NOT_SUPPORTED      (-1)
+#define FFA_RET_INVALID_PARAMETERS (-2)
+#define FFA_RET_NO_MEMORY          (-3)
+#define FFA_RET_BUSY               (-4)
+#define FFA_RET_INTERRUPTED        (-5)
+#define FFA_RET_DENIED             (-6)
+#define FFA_RET_RETRY              (-7)
+#define FFA_RET_ABORTED            (-8)
+
+/* FFA version encoding */
+#define FFA_MAJOR_VERSION_MASK	GENMASK(30, 16)
+#define FFA_MINOR_VERSION_MASK	GENMASK(15, 0)
+#define FFA_MAJOR_VERSION(x)	((u16)(FIELD_GET(FFA_MAJOR_VERSION_MASK, (x))))
+#define FFA_MINOR_VERSION(x)	((u16)(FIELD_GET(FFA_MINOR_VERSION_MASK, (x))))
+#define FFA_PACK_VERSION_INFO(major, minor)			\
+	(FIELD_PREP(FFA_MAJOR_VERSION_MASK, (major)) |		\
+	 FIELD_PREP(FFA_MINOR_VERSION_MASK, (minor)))
+#define FFA_VERSION_1_0		FFA_PACK_VERSION_INFO(1, 0)
+
+/**
+ * FF-A specification mentions explicitly about '4K pages'. This should
+ * not be confused with the kernel PAGE_SIZE, which is the translation
+ * granule kernel is configured and may be one among 4K, 16K and 64K.
+ */
+#define FFA_PAGE_SIZE		SZ_4K
+
 /* FFA Bus/Device/Driver related */
 struct ffa_device {
 	int vm_id;
-- 
GitLab


From 65921f9d9666a5cd45b88051c6c5c49a2e3e6833 Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Wed, 17 Nov 2021 14:44:20 +0000
Subject: [PATCH 3962/4878] ANDROID: firmware: arm_ffa: Move comment before the
 field it is documenting

This is consistent with the other comments in the struct.

Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I10e9014a0d505fe5e132fb1cd6105b95a3f5f2bf
---
 include/linux/arm_ffa.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 27310b3e97616..f35fc088fd7e5 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -239,11 +239,11 @@ struct ffa_mem_region_attributes {
 	 */
 #define FFA_MEM_RETRIEVE_SELF_BORROWER	BIT(0)
 	u8 flag;
-	u32 composite_off;
 	/*
 	 * Offset in bytes from the start of the outer `ffa_memory_region` to
 	 * an `struct ffa_mem_region_addr_range`.
 	 */
+	u32 composite_off;
 	u64 reserved;
 };
 
-- 
GitLab


From 16a86ff04efcf51ce66e8f8490d25b6dc6943fab Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Mon, 31 Jan 2022 23:45:53 +0000
Subject: [PATCH 3963/4878] ANDROID: KVM: arm64: Include asm/kvm_mmu.h in
 nvhe/mem_protect.h

nvhe/mem_protect.h refers to __load_stage2() in the definition of
__load_host_stage2() but doesn't include the relevant header.

Include asm/kvm_mmu.h in nvhe/mem_protect.h so that users of the latter
don't have to do this themselves.

Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ia48a1747fe10fd7ec7ba545c3290fe69b8d1839c
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index c7ba12748591e..a4811d4ca180d 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -8,6 +8,7 @@
 #define __KVM_NVHE_MEM_PROTECT__
 #include <linux/kvm_host.h>
 #include <asm/kvm_hyp.h>
+#include <asm/kvm_mmu.h>
 #include <asm/kvm_pgtable.h>
 #include <asm/virt.h>
 #include <nvhe/spinlock.h>
-- 
GitLab


From baeb766202256110d7b6391646751a612c43ccc2 Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Thu, 25 Mar 2021 11:43:16 +0000
Subject: [PATCH 3964/4878] ANDROID: BACKPORT: KVM: arm64: Block unsafe FF-A
 calls from the host

When KVM is initialised in protected mode, we must take care to filter
certain FFA calls from the host kernel so that the integrity of guest
and hypervisor memory is maintained and is not made available to the
secure world.

As a first step, intercept and block all memory-related FF-A SMC calls
from the host to EL3. This puts the framework in place for handling them
properly.

Co-developed-by: Will Deacon <willdeacon@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
[willdeacon@: Fixed #include context conflict with nvhe/iommu.h]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I5279bce56956c590862a68e8c4803dd2205e3f81
---
 arch/arm64/kvm/hyp/include/nvhe/ffa.h |  16 ++++
 arch/arm64/kvm/hyp/nvhe/Makefile      |   2 +-
 arch/arm64/kvm/hyp/nvhe/ffa.c         | 113 ++++++++++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c    |   3 +
 4 files changed, 133 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/kvm/hyp/include/nvhe/ffa.h
 create mode 100644 arch/arm64/kvm/hyp/nvhe/ffa.c

diff --git a/arch/arm64/kvm/hyp/include/nvhe/ffa.h b/arch/arm64/kvm/hyp/include/nvhe/ffa.h
new file mode 100644
index 0000000000000..fc09ec671e24f
--- /dev/null
+++ b/arch/arm64/kvm/hyp/include/nvhe/ffa.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022 - Google LLC
+ * Author: Andrew Walbran <qwandor@google.com>
+ */
+#ifndef __KVM_HYP_FFA_H
+#define __KVM_HYP_FFA_H
+
+#include <asm/kvm_host.h>
+
+#define FFA_MIN_FUNC_NUM 0x60
+#define FFA_MAX_FUNC_NUM 0x7F
+
+bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt);
+
+#endif /* __KVM_HYP_FFA_H */
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 2428f1719740c..56aad42b19283 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -14,7 +14,7 @@ lib-objs := $(addprefix ../../../lib/, $(lib-objs))
 
 obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \
 	 hyp-main.o hyp-smp.o psci-relay.o early_alloc.o stub.o page_alloc.o \
-	 cache.o setup.o mm.o mem_protect.o sys_regs.o pkvm.o
+	 cache.o ffa.o setup.o mm.o mem_protect.o sys_regs.o pkvm.o
 obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
 	 ../fpsimd.o ../hyp-entry.o ../exception.o ../pgtable.o
 obj-y += $(lib-objs)
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
new file mode 100644
index 0000000000000..6ccf935d3b415
--- /dev/null
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * FF-A v1.0 proxy to filter out invalid memory-sharing SMC calls issued by
+ * the host. FF-A is a slightly more palatable abbreviation of "Arm Firmware
+ * Framework for Arm A-profile", which is specified by Arm in document
+ * number DEN0077.
+ *
+ * Copyright (C) 2022 - Google LLC
+ * Author: Andrew Walbran <qwandor@google.com>
+ *
+ * This driver hooks into the SMC trapping logic for the host and intercepts
+ * all calls falling within the FF-A range. Each call is either:
+ *
+ *	- Forwarded on unmodified to the SPMD at EL3
+ *	- Rejected as "unsupported"
+ *	- Accompanied by a host stage-2 page-table check/update and reissued
+ *
+ * Consequently, any attempts by the host to make guest memory pages
+ * accessible to the secure world using FF-A will be detected either here
+ * (in the case that the memory is already owned by the guest) or during
+ * donation to the guest (in the case that the memory was previously shared
+ * with the secure world).
+ *
+ * To allow the rolling-back of page-table updates and FF-A calls in the
+ * event of failure, operations involving the RXTX buffers are locked for
+ * the duration and are therefore serialised.
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/arm_ffa.h>
+#include <nvhe/ffa.h>
+#include <nvhe/trap_handler.h>
+
+static void ffa_to_smccc_error(struct arm_smccc_res *res, u64 ffa_errno)
+{
+	*res = (struct arm_smccc_res) {
+		.a0	= FFA_ERROR,
+		.a2	= ffa_errno,
+	};
+}
+
+static void ffa_set_retval(struct kvm_cpu_context *ctxt,
+			   struct arm_smccc_res *res)
+{
+	cpu_reg(ctxt, 0) = res->a0;
+	cpu_reg(ctxt, 1) = res->a1;
+	cpu_reg(ctxt, 2) = res->a2;
+	cpu_reg(ctxt, 3) = res->a3;
+}
+
+static bool is_ffa_call(u64 func_id)
+{
+	return ARM_SMCCC_IS_FAST_CALL(func_id) &&
+	       ARM_SMCCC_OWNER_NUM(func_id) == ARM_SMCCC_OWNER_STANDARD &&
+	       ARM_SMCCC_FUNC_NUM(func_id) >= FFA_MIN_FUNC_NUM &&
+	       ARM_SMCCC_FUNC_NUM(func_id) <= FFA_MAX_FUNC_NUM;
+}
+
+static bool ffa_call_unsupported(u64 func_id)
+{
+	switch (func_id) {
+	/* Unsupported memory management calls */
+	case FFA_FN64_MEM_RETRIEVE_REQ:
+	case FFA_MEM_RETRIEVE_RESP:
+	case FFA_MEM_RELINQUISH:
+	case FFA_MEM_OP_PAUSE:
+	case FFA_MEM_OP_RESUME:
+	case FFA_MEM_FRAG_RX:
+	case FFA_FN64_MEM_DONATE:
+	/* Indirect message passing via RX/TX buffers */
+	case FFA_MSG_SEND:
+	case FFA_MSG_POLL:
+	case FFA_MSG_WAIT:
+	/* 32-bit variants of 64-bit calls */
+	case FFA_MSG_SEND_DIRECT_REQ:
+	case FFA_MSG_SEND_DIRECT_RESP:
+	case FFA_RXTX_MAP:
+	case FFA_MEM_DONATE:
+	case FFA_MEM_RETRIEVE_REQ:
+		return true;
+	}
+
+	return false;
+}
+
+bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(u64, func_id, host_ctxt, 0);
+	struct arm_smccc_res res;
+
+	if (!is_ffa_call(func_id))
+		return false;
+
+	switch (func_id) {
+	/* Memory management */
+	case FFA_FN64_RXTX_MAP:
+	case FFA_RXTX_UNMAP:
+	case FFA_MEM_SHARE:
+	case FFA_FN64_MEM_SHARE:
+	case FFA_MEM_LEND:
+	case FFA_FN64_MEM_LEND:
+	case FFA_MEM_RECLAIM:
+	case FFA_MEM_FRAG_TX:
+		break;
+	}
+
+	if (!ffa_call_unsupported(func_id))
+		return false; /* Pass through */
+
+	ffa_to_smccc_error(&res, FFA_RET_NOT_SUPPORTED);
+	ffa_set_retval(host_ctxt, &res);
+	return true;
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 803512cf8436e..44d205ae734e6 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -15,6 +15,7 @@
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 
+#include <nvhe/ffa.h>
 #include <nvhe/iommu.h>
 #include <nvhe/mem_protect.h>
 #include <nvhe/mm.h>
@@ -1052,6 +1053,8 @@ static void handle_host_smc(struct kvm_cpu_context *host_ctxt)
 	handled = kvm_host_psci_handler(host_ctxt);
 	if (!handled && kvm_iommu_ops.host_smc_handler)
 		handled = kvm_iommu_ops.host_smc_handler(host_ctxt);
+	if (!handled)
+		handled = kvm_host_ffa_handler(host_ctxt);
 	if (!handled)
 		default_host_smc_handler(host_ctxt);
 
-- 
GitLab


From 5cf56b3948fe2e29139bd4afc8b60bec07c4f8a5 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Mon, 31 Jan 2022 23:07:52 +0000
Subject: [PATCH 3965/4878] ANDROID: KVM: arm64: Probe FF-A version and
 host/hyp partition ID during init

Probe FF-A during pKVM initialisation so that we can detect any
inconsistencies in the version or partition ID early on.

Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I7def4c2c497017ba86621bc98298bc65ffdeefae
---
 arch/arm64/include/asm/kvm_host.h     |  1 +
 arch/arm64/kvm/arm.c                  |  1 +
 arch/arm64/kvm/hyp/include/nvhe/ffa.h |  1 +
 arch/arm64/kvm/hyp/nvhe/ffa.c         | 30 +++++++++++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/setup.c       |  4 ++++
 5 files changed, 37 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 3b69db40e003a..bf6c16f6474a8 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -356,6 +356,7 @@ struct kvm_host_data {
 struct kvm_host_psci_config {
 	/* PSCI version used by host. */
 	u32 version;
+	u32 smccc_version;
 
 	/* Function IDs used by host if version is v0.1. */
 	struct psci_0_1_function_ids function_ids_0_1;
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2c60582deb127..c243b93040833 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1880,6 +1880,7 @@ static bool init_psci_relay(void)
 	}
 
 	kvm_host_psci_config.version = psci_ops.get_version();
+	kvm_host_psci_config.smccc_version = arm_smccc_get_version();
 
 	if (kvm_host_psci_config.version == PSCI_VERSION(0, 1)) {
 		kvm_host_psci_config.function_ids_0_1 = get_psci_0_1_function_ids();
diff --git a/arch/arm64/kvm/hyp/include/nvhe/ffa.h b/arch/arm64/kvm/hyp/include/nvhe/ffa.h
index fc09ec671e24f..5c9b92430ff3c 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/ffa.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/ffa.h
@@ -11,6 +11,7 @@
 #define FFA_MIN_FUNC_NUM 0x60
 #define FFA_MAX_FUNC_NUM 0x7F
 
+int hyp_ffa_init(void);
 bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt);
 
 #endif /* __KVM_HYP_FFA_H */
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 6ccf935d3b415..969d72390844a 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -31,6 +31,12 @@
 #include <nvhe/ffa.h>
 #include <nvhe/trap_handler.h>
 
+/*
+ * "ID value 0 must be returned at the Non-secure physical FF-A instance"
+ * We share this ID with the host.
+ */
+#define HOST_FFA_ID	0
+
 static void ffa_to_smccc_error(struct arm_smccc_res *res, u64 ffa_errno)
 {
 	*res = (struct arm_smccc_res) {
@@ -111,3 +117,27 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 	ffa_set_retval(host_ctxt, &res);
 	return true;
 }
+
+int hyp_ffa_init(void)
+{
+	struct arm_smccc_res res;
+
+	if (kvm_host_psci_config.smccc_version < ARM_SMCCC_VERSION_1_2)
+		return 0;
+
+	arm_smccc_1_1_smc(FFA_VERSION, FFA_VERSION_1_0, 0, 0, 0, 0, 0, 0, &res);
+	if (res.a0 == FFA_RET_NOT_SUPPORTED)
+		return 0;
+
+	if (res.a0 != FFA_VERSION_1_0)
+		return -EOPNOTSUPP;
+
+	arm_smccc_1_1_smc(FFA_ID_GET, 0, 0, 0, 0, 0, 0, 0, &res);
+	if (res.a0 != FFA_SUCCESS)
+		return -EOPNOTSUPP;
+
+	if (res.a2 != HOST_FFA_ID)
+		return -EINVAL;
+
+	return 0;
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 3ac3283328483..a270fe149e948 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -11,6 +11,7 @@
 #include <asm/kvm_pkvm.h>
 
 #include <nvhe/early_alloc.h>
+#include <nvhe/ffa.h>
 #include <nvhe/gfp.h>
 #include <nvhe/iommu.h>
 #include <nvhe/memory.h>
@@ -331,6 +332,9 @@ void __noreturn __pkvm_init_finalise(void)
 	if (ret)
 		goto out;
 
+	ret = hyp_ffa_init();
+	if (ret)
+		goto out;
 out:
 	/*
 	 * We tail-called to here from handle___pkvm_init() and will not return,
-- 
GitLab


From a3a8448f92d1c084c0ddf456fa51d239bcfc47bc Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 3 Feb 2022 08:47:59 +0000
Subject: [PATCH 3966/4878] ANDROID: KVM: arm64: Handle FFA_FEATURES call from
 the host

Filter out advertising unsupported features, and only advertise
features and properties that are supported by the hypervisor proxy.

Signed-off-by: Fuad Tabba <tabba@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I071766d6d241f4bdd00b8f80e6b237c184a1e59a
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 44 +++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 969d72390844a..d199f868583e1 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -45,6 +45,16 @@ static void ffa_to_smccc_error(struct arm_smccc_res *res, u64 ffa_errno)
 	};
 }
 
+static void ffa_to_smccc_res_prop(struct arm_smccc_res *res, int ret, u64 prop)
+{
+	if (ret == FFA_RET_SUCCESS) {
+		*res = (struct arm_smccc_res) { .a0 = FFA_SUCCESS,
+						.a2 = prop };
+	} else {
+		ffa_to_smccc_error(res, ret);
+	}
+}
+
 static void ffa_set_retval(struct kvm_cpu_context *ctxt,
 			   struct arm_smccc_res *res)
 {
@@ -89,6 +99,35 @@ static bool ffa_call_unsupported(u64 func_id)
 	return false;
 }
 
+static bool do_ffa_features(struct arm_smccc_res *res,
+			    struct kvm_cpu_context *ctxt)
+{
+	DECLARE_REG(u32, id, ctxt, 1);
+	u64 prop = 0;
+	int ret = 0;
+
+	if (ffa_call_unsupported(id)) {
+		ret = FFA_RET_NOT_SUPPORTED;
+		goto out_handled;
+	}
+
+	switch (id) {
+	case FFA_MEM_SHARE:
+	case FFA_FN64_MEM_SHARE:
+	case FFA_MEM_LEND:
+	case FFA_FN64_MEM_LEND:
+		ret = FFA_RET_SUCCESS;
+		prop = 0; /* No support for dynamic buffers */
+		goto out_handled;
+	default:
+		return false;
+	}
+
+out_handled:
+	ffa_to_smccc_res_prop(res, ret, prop);
+	return true;
+}
+
 bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, func_id, host_ctxt, 0);
@@ -98,6 +137,10 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 		return false;
 
 	switch (func_id) {
+	case FFA_FEATURES:
+		if (!do_ffa_features(&res, host_ctxt))
+			return false;
+		goto out_handled;
 	/* Memory management */
 	case FFA_FN64_RXTX_MAP:
 	case FFA_RXTX_UNMAP:
@@ -114,6 +157,7 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 		return false; /* Pass through */
 
 	ffa_to_smccc_error(&res, FFA_RET_NOT_SUPPORTED);
+out_handled:
 	ffa_set_retval(host_ctxt, &res);
 	return true;
 }
-- 
GitLab


From 6c5af2e050d4f65d5178b1409121d10cf859a8a6 Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Wed, 1 Dec 2021 13:46:30 +0000
Subject: [PATCH 3967/4878] ANDROID: KVM: arm64: Allocate pages for hypervisor
 FF-A mailboxes

The FF-A proxy code needs to allocate its own buffer pair for
communication with EL3 and for forwarding calls from the host at EL1.

Reserve a couple of pages for this purpose and use them to initialise
the hypervisor's FF-A buffer structure.

Co-developed-by: Will Deacon <willdeacon@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id72cd7f59be20eb6d1faa6f1c5e64ecc8debf929
---
 arch/arm64/include/asm/kvm_pkvm.h     |  8 ++++++++
 arch/arm64/kvm/hyp/include/nvhe/ffa.h |  9 ++++++++-
 arch/arm64/kvm/hyp/nvhe/ffa.c         | 17 ++++++++++++++++-
 arch/arm64/kvm/hyp/nvhe/setup.c       |  8 +++++++-
 arch/arm64/kvm/pkvm.c                 |  1 +
 5 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 447f852f2b2d2..2b8db15104933 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -322,4 +322,12 @@ static inline unsigned long host_s2_pgtable_pages(void)
 	return res;
 }
 
+#define KVM_FFA_MBOX_NR_PAGES	1
+
+static inline unsigned long hyp_ffa_proxy_pages(void)
+{
+	/* A page each for the hypervisor's RX and TX mailboxes. */
+	return 2 * KVM_FFA_MBOX_NR_PAGES;
+}
+
 #endif	/* __ARM64_KVM_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/include/nvhe/ffa.h b/arch/arm64/kvm/hyp/include/nvhe/ffa.h
index 5c9b92430ff3c..39666259820f2 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/ffa.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/ffa.h
@@ -7,11 +7,18 @@
 #define __KVM_HYP_FFA_H
 
 #include <asm/kvm_host.h>
+#include <nvhe/spinlock.h>
 
 #define FFA_MIN_FUNC_NUM 0x60
 #define FFA_MAX_FUNC_NUM 0x7F
 
-int hyp_ffa_init(void);
+struct kvm_ffa_buffers {
+	hyp_spinlock_t lock;
+	void *tx;
+	void *rx;
+};
+
+int hyp_ffa_init(void *pages);
 bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt);
 
 #endif /* __KVM_HYP_FFA_H */
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index d199f868583e1..045c4eb8905c6 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -28,6 +28,8 @@
 
 #include <linux/arm-smccc.h>
 #include <linux/arm_ffa.h>
+#include <asm/kvm_pkvm.h>
+
 #include <nvhe/ffa.h>
 #include <nvhe/trap_handler.h>
 
@@ -37,6 +39,13 @@
  */
 #define HOST_FFA_ID	0
 
+/*
+ * Note that we don't currently lock these buffers explicitly, instead
+ * relying on the locking of the host FFA buffers as we only have one
+ * client.
+ */
+static struct kvm_ffa_buffers ffa_buffers;
+
 static void ffa_to_smccc_error(struct arm_smccc_res *res, u64 ffa_errno)
 {
 	*res = (struct arm_smccc_res) {
@@ -162,7 +171,7 @@ out_handled:
 	return true;
 }
 
-int hyp_ffa_init(void)
+int hyp_ffa_init(void *pages)
 {
 	struct arm_smccc_res res;
 
@@ -183,5 +192,11 @@ int hyp_ffa_init(void)
 	if (res.a2 != HOST_FFA_ID)
 		return -EINVAL;
 
+	ffa_buffers = (struct kvm_ffa_buffers) {
+		.lock	= __HYP_SPIN_LOCK_UNLOCKED,
+		.tx	= pages,
+		.rx	= pages + (KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE),
+	};
+
 	return 0;
 }
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index a270fe149e948..60c611cd29cdf 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -31,6 +31,7 @@ phys_addr_t pvmfw_size;
 static void *vmemmap_base;
 static void *hyp_pgt_base;
 static void *host_s2_pgt_base;
+static void *ffa_proxy_pages;
 static struct kvm_pgtable_mm_ops pkvm_pgtable_mm_ops;
 static struct hyp_pool hpool;
 
@@ -60,6 +61,11 @@ static int divide_memory_pool(void *virt, unsigned long size)
 	if (!host_s2_pgt_base)
 		return -ENOMEM;
 
+	nr_pages = hyp_ffa_proxy_pages();
+	ffa_proxy_pages = hyp_early_alloc_contig(nr_pages);
+	if (!ffa_proxy_pages)
+		return -ENOMEM;
+
 	return 0;
 }
 
@@ -332,7 +338,7 @@ void __noreturn __pkvm_init_finalise(void)
 	if (ret)
 		goto out;
 
-	ret = hyp_ffa_init();
+	ret = hyp_ffa_init(ffa_proxy_pages);
 	if (ret)
 		goto out;
 out:
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 6a73ddab8a888..c79e985bbdd5b 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -82,6 +82,7 @@ void __init kvm_hyp_reserve(void)
 	hyp_mem_pages += host_s2_pgtable_pages();
 	hyp_mem_pages += hyp_shadow_table_pages(KVM_SHADOW_VM_SIZE);
 	hyp_mem_pages += hyp_vmemmap_pages(STRUCT_HYP_PAGE_SIZE);
+	hyp_mem_pages += hyp_ffa_proxy_pages();
 
 	/*
 	 * Try to allocate a PMD-aligned region to reduce TLB pressure once
-- 
GitLab


From f34679dc297dfb536a15c1974e281fe729cf81c6 Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Wed, 28 Apr 2021 12:55:01 +0000
Subject: [PATCH 3968/4878] ANDROID: KVM: arm64: Handle FFA_RXTX_MAP and
 FFA_RXTX_UNMAP calls from the host

Handle FFA_RXTX_MAP and FFA_RXTX_UNMAP calls from the host by sharing
the host's mailbox memory with the hypervisor and establishing a
separate pair of mailboxes between the hypervisor and the SPMD at EL3.

Co-developed-by: Will Deacon <willdeacon@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib5fa89e9b01aa20f7c1b5b41df79d66e98d07f55
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |   2 +
 arch/arm64/kvm/hyp/nvhe/ffa.c                 | 151 ++++++++++++++++++
 include/linux/arm_ffa.h                       |   8 +
 3 files changed, 161 insertions(+)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index a4811d4ca180d..167a8577807da 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -11,6 +11,7 @@
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_pgtable.h>
 #include <asm/virt.h>
+#include <nvhe/ffa.h>
 #include <nvhe/spinlock.h>
 
 /*
@@ -48,6 +49,7 @@ struct host_kvm {
 	struct kvm_arch arch;
 	struct kvm_pgtable pgt;
 	struct kvm_pgtable_mm_ops mm_ops;
+	struct kvm_ffa_buffers ffa;
 	hyp_spinlock_t lock;
 };
 extern struct host_kvm host_kvm;
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 045c4eb8905c6..5dbf9832277f5 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -31,6 +31,8 @@
 #include <asm/kvm_pkvm.h>
 
 #include <nvhe/ffa.h>
+#include <nvhe/mem_protect.h>
+#include <nvhe/memory.h>
 #include <nvhe/trap_handler.h>
 
 /*
@@ -64,6 +66,11 @@ static void ffa_to_smccc_res_prop(struct arm_smccc_res *res, int ret, u64 prop)
 	}
 }
 
+static void ffa_to_smccc_res(struct arm_smccc_res *res, int ret)
+{
+	ffa_to_smccc_res_prop(res, ret, 0);
+}
+
 static void ffa_set_retval(struct kvm_cpu_context *ctxt,
 			   struct arm_smccc_res *res)
 {
@@ -81,6 +88,119 @@ static bool is_ffa_call(u64 func_id)
 	       ARM_SMCCC_FUNC_NUM(func_id) <= FFA_MAX_FUNC_NUM;
 }
 
+static int spmd_map_ffa_buffers(u64 ffa_page_count)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_smc(FFA_FN64_RXTX_MAP,
+			  hyp_virt_to_phys(ffa_buffers.tx),
+			  hyp_virt_to_phys(ffa_buffers.rx),
+			  ffa_page_count,
+			  0, 0, 0, 0,
+			  &res);
+
+	return res.a0 == FFA_SUCCESS ? FFA_RET_SUCCESS : res.a2;
+}
+
+static int spmd_unmap_ffa_buffers(void)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_smc(FFA_RXTX_UNMAP,
+			  HOST_FFA_ID,
+			  0, 0, 0, 0, 0, 0,
+			  &res);
+
+	return res.a0 == FFA_SUCCESS ? FFA_RET_SUCCESS : res.a2;
+}
+
+static void do_ffa_rxtx_map(struct arm_smccc_res *res,
+			    struct kvm_cpu_context *ctxt)
+{
+	DECLARE_REG(phys_addr_t, tx, ctxt, 1);
+	DECLARE_REG(phys_addr_t, rx, ctxt, 2);
+	DECLARE_REG(u32, npages, ctxt, 3);
+	int ret = 0;
+
+	if (npages != (KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE) / FFA_PAGE_SIZE) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out;
+	}
+
+	if (!PAGE_ALIGNED(tx) || !PAGE_ALIGNED(rx)) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out;
+	}
+
+	hyp_spin_lock(&host_kvm.ffa.lock);
+	if (host_kvm.ffa.tx) {
+		ret = FFA_RET_DENIED;
+		goto out_unlock;
+	}
+
+	ret = spmd_map_ffa_buffers(npages);
+	if (ret)
+		goto out_unlock;
+
+	ret = __pkvm_host_share_hyp(hyp_phys_to_pfn(tx));
+	if (ret) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto err_unmap;
+	}
+
+	ret = __pkvm_host_share_hyp(hyp_phys_to_pfn(rx));
+	if (ret) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto err_unshare_tx;
+	}
+
+	host_kvm.ffa.tx = hyp_phys_to_virt(tx);
+	host_kvm.ffa.rx = hyp_phys_to_virt(rx);
+
+out_unlock:
+	hyp_spin_unlock(&host_kvm.ffa.lock);
+out:
+	ffa_to_smccc_res(res, ret);
+	return;
+
+err_unshare_tx:
+	__pkvm_host_unshare_hyp(hyp_phys_to_pfn(tx));
+err_unmap:
+	spmd_unmap_ffa_buffers();
+	goto out_unlock;
+}
+
+static void do_ffa_rxtx_unmap(struct arm_smccc_res *res,
+			      struct kvm_cpu_context *ctxt)
+{
+	DECLARE_REG(u32, id, ctxt, 1);
+	int ret = 0;
+
+	if (id != HOST_FFA_ID) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out;
+	}
+
+	hyp_spin_lock(&host_kvm.ffa.lock);
+	if (!host_kvm.ffa.tx) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out_unlock;
+	}
+
+	WARN_ON(__pkvm_host_unshare_hyp(hyp_virt_to_pfn(host_kvm.ffa.tx)));
+	host_kvm.ffa.tx = NULL;
+
+	WARN_ON(__pkvm_host_unshare_hyp(hyp_virt_to_pfn(host_kvm.ffa.rx)));
+	host_kvm.ffa.rx = NULL;
+
+	spmd_unmap_ffa_buffers();
+
+out_unlock:
+	hyp_spin_unlock(&host_kvm.ffa.lock);
+out:
+	ffa_to_smccc_res(res, ret);
+}
+
 static bool ffa_call_unsupported(u64 func_id)
 {
 	switch (func_id) {
@@ -152,7 +272,11 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 		goto out_handled;
 	/* Memory management */
 	case FFA_FN64_RXTX_MAP:
+		do_ffa_rxtx_map(&res, host_ctxt);
+		goto out_handled;
 	case FFA_RXTX_UNMAP:
+		do_ffa_rxtx_unmap(&res, host_ctxt);
+		goto out_handled;
 	case FFA_MEM_SHARE:
 	case FFA_FN64_MEM_SHARE:
 	case FFA_MEM_LEND:
@@ -174,6 +298,7 @@ out_handled:
 int hyp_ffa_init(void *pages)
 {
 	struct arm_smccc_res res;
+	size_t min_rxtx_sz;
 
 	if (kvm_host_psci_config.smccc_version < ARM_SMCCC_VERSION_1_2)
 		return 0;
@@ -192,11 +317,37 @@ int hyp_ffa_init(void *pages)
 	if (res.a2 != HOST_FFA_ID)
 		return -EINVAL;
 
+	arm_smccc_1_1_smc(FFA_FEATURES, FFA_FN64_RXTX_MAP,
+			  0, 0, 0, 0, 0, 0, &res);
+	if (res.a0 != FFA_SUCCESS)
+		return -EOPNOTSUPP;
+
+	switch (res.a2) {
+	case FFA_FEAT_RXTX_MIN_SZ_4K:
+		min_rxtx_sz = SZ_4K;
+		break;
+	case FFA_FEAT_RXTX_MIN_SZ_16K:
+		min_rxtx_sz = SZ_16K;
+		break;
+	case FFA_FEAT_RXTX_MIN_SZ_64K:
+		min_rxtx_sz = SZ_64K;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (min_rxtx_sz > PAGE_SIZE)
+		return -EOPNOTSUPP;
+
 	ffa_buffers = (struct kvm_ffa_buffers) {
 		.lock	= __HYP_SPIN_LOCK_UNLOCKED,
 		.tx	= pages,
 		.rx	= pages + (KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE),
 	};
 
+	host_kvm.ffa = (struct kvm_ffa_buffers) {
+		.lock	= __HYP_SPIN_LOCK_UNLOCKED,
+	};
+
 	return 0;
 }
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index f35fc088fd7e5..f0cb5b72b87b5 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -94,6 +94,14 @@
  */
 #define FFA_PAGE_SIZE		SZ_4K
 
+/*
+ * Minimum buffer size/alignment encodings returned by an FFA_FEATURES
+ * query for FFA_RXTX_MAP.
+ */
+#define FFA_FEAT_RXTX_MIN_SZ_4K		0
+#define FFA_FEAT_RXTX_MIN_SZ_64K	1
+#define FFA_FEAT_RXTX_MIN_SZ_16K	2
+
 /* FFA Bus/Device/Driver related */
 struct ffa_device {
 	int vm_id;
-- 
GitLab


From 1adb45e30dc198bbd4085566b04e08158686f93d Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Tue, 19 Oct 2021 14:20:11 +0000
Subject: [PATCH 3969/4878] ANDROID: BACKPORT: KVM: arm64: Add FF-A helpers to
 share/unshare memory with secure world

Extend pKVM's memory protection code so that we can update the host's
stage-2 page-table to track pages shared with secure world by the host
using FF-A and prevent those pages from being mapped into a guest.

Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
[willdeacon@: Moved 'pkvm_ffa_id' to nvhe/mem_protect.h]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib4d404cd1d4fa11d7bf8c1d0b8ec00838a8038a0
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  5 +-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 69 +++++++++++++++++++
 2 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 167a8577807da..0118a3b6b943f 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -57,7 +57,8 @@ extern struct host_kvm host_kvm;
 typedef u32 pkvm_id;
 static const pkvm_id pkvm_host_id	= 0;
 static const pkvm_id pkvm_hyp_id	= (1 << 16);
-static const pkvm_id pkvm_host_poison	= pkvm_hyp_id + 1;
+static const pkvm_id pkvm_ffa_id	= pkvm_hyp_id + 1; /* Secure world */
+static const pkvm_id pkvm_host_poison	= pkvm_ffa_id + 1;
 
 extern unsigned long hyp_nr_cpus;
 
@@ -71,6 +72,8 @@ int __pkvm_host_share_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu);
 int __pkvm_guest_share_host(struct kvm_vcpu *vcpu, u64 ipa);
 int __pkvm_guest_unshare_host(struct kvm_vcpu *vcpu, u64 ipa);
+int __pkvm_host_share_ffa(u64 pfn, u64 nr_pages);
+int __pkvm_host_unshare_ffa(u64 pfn, u64 nr_pages);
 int __pkvm_install_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa);
 int __pkvm_remove_ioguard_page(struct kvm_vcpu *vcpu, u64 ipa);
 bool __pkvm_check_ioguard_page(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 25b30cc98c552..aead9a12a9710 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -646,6 +646,7 @@ enum pkvm_component_id {
 	PKVM_ID_HOST,
 	PKVM_ID_HYP,
 	PKVM_ID_GUEST,
+	PKVM_ID_FFA,
 };
 
 struct pkvm_mem_transition {
@@ -1222,6 +1223,13 @@ static int check_share(struct pkvm_mem_share *share)
 	case PKVM_ID_GUEST:
 		ret = guest_ack_share(completer_addr, tx, share->completer_prot);
 		break;
+	case PKVM_ID_FFA:
+		/*
+		 * We only check the host; the secure side will check the other
+		 * end when we forward the FFA call.
+		 */
+		ret = 0;
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1259,6 +1267,13 @@ static int __do_share(struct pkvm_mem_share *share)
 	case PKVM_ID_GUEST:
 		ret = guest_complete_share(completer_addr, tx, share->completer_prot);
 		break;
+	case PKVM_ID_FFA:
+		/*
+		 * We're not responsible for any secure page-tables, so there's
+		 * nothing to do here.
+		 */
+		ret = 0;
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1313,6 +1328,10 @@ static int check_unshare(struct pkvm_mem_share *share)
 	case PKVM_ID_HYP:
 		ret = hyp_ack_unshare(completer_addr, tx);
 		break;
+	case PKVM_ID_FFA:
+		/* See check_share() */
+		ret = 0;
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1347,6 +1366,10 @@ static int __do_unshare(struct pkvm_mem_share *share)
 	case PKVM_ID_HYP:
 		ret = hyp_complete_unshare(completer_addr, tx);
 		break;
+	case PKVM_ID_FFA:
+		/* See __do_share() */
+		ret = 0;
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1778,6 +1801,52 @@ int __pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
 	return ret;
 }
 
+int __pkvm_host_share_ffa(u64 pfn, u64 nr_pages)
+{
+	int ret;
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= nr_pages,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= hyp_pfn_to_phys(pfn),
+			},
+			.completer	= {
+				.id	= PKVM_ID_FFA,
+			},
+		},
+	};
+
+	host_lock_component();
+	ret = do_share(&share);
+	host_unlock_component();
+
+	return ret;
+}
+
+int __pkvm_host_unshare_ffa(u64 pfn, u64 nr_pages)
+{
+	int ret;
+	struct pkvm_mem_share share = {
+		.tx	= {
+			.nr_pages	= nr_pages,
+			.initiator	= {
+				.id	= PKVM_ID_HOST,
+				.addr	= hyp_pfn_to_phys(pfn),
+			},
+			.completer	= {
+				.id	= PKVM_ID_FFA,
+			},
+		},
+	};
+
+	host_lock_component();
+	ret = do_unshare(&share);
+	host_unlock_component();
+
+	return ret;
+}
+
 static int hyp_zero_page(phys_addr_t phys)
 {
 	void *addr;
-- 
GitLab


From 946892fb271454540f7e4df3419dc96d665c3455 Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Tue, 26 Oct 2021 10:50:08 +0000
Subject: [PATCH 3970/4878] ANDROID: KVM: arm64: Handle FFA_MEM_SHARE calls
 from the host

Intercept FFA_MEM_SHARE/FFA_FN64_MEM_SHARE calls from the host and
transition the host stage-2 page-table entries from the OWNED state to
the SHARED_OWNED state prior to forwarding the call onto EL3.

Signed-off-by: Andrew Walbran <qwandor@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ic75a943c67e6cb96794c250dccf2a59362bf857e
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 147 ++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 5dbf9832277f5..7fe3bfd1bdb5f 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -114,6 +114,14 @@ static int spmd_unmap_ffa_buffers(void)
 	return res.a0 == FFA_SUCCESS ? FFA_RET_SUCCESS : res.a2;
 }
 
+static void spmd_mem_share(struct arm_smccc_res *res, u32 len, u32 fraglen)
+{
+	arm_smccc_1_1_smc(FFA_FN64_MEM_SHARE,
+			  len, fraglen,
+			  0, 0, 0, 0, 0,
+			  res);
+}
+
 static void do_ffa_rxtx_map(struct arm_smccc_res *res,
 			    struct kvm_cpu_context *ctxt)
 {
@@ -201,6 +209,143 @@ out:
 	ffa_to_smccc_res(res, ret);
 }
 
+static u32 __ffa_host_share_ranges(struct ffa_mem_region_addr_range *ranges,
+				   u32 nranges)
+{
+	u32 i;
+
+	for (i = 0; i < nranges; ++i) {
+		struct ffa_mem_region_addr_range *range = &ranges[i];
+		u64 npages = (range->pg_cnt * FFA_PAGE_SIZE) / PAGE_SIZE;
+		u64 pfn = hyp_phys_to_pfn(range->address);
+
+		if (__pkvm_host_share_ffa(pfn, npages))
+			break;
+	}
+
+	return i;
+}
+
+static u32 __ffa_host_unshare_ranges(struct ffa_mem_region_addr_range *ranges,
+				     u32 nranges)
+{
+	u32 i;
+
+	for (i = 0; i < nranges; ++i) {
+		struct ffa_mem_region_addr_range *range = &ranges[i];
+		u64 npages = (range->pg_cnt * FFA_PAGE_SIZE) / PAGE_SIZE;
+		u64 pfn = hyp_phys_to_pfn(range->address);
+
+		if (__pkvm_host_unshare_ffa(pfn, npages))
+			break;
+	}
+
+	return i;
+}
+
+static int ffa_host_share_ranges(struct ffa_mem_region_addr_range *ranges,
+				 u32 nranges)
+{
+	u32 nshared = __ffa_host_share_ranges(ranges, nranges);
+	int ret = 0;
+
+	if (nshared != nranges) {
+		WARN_ON(__ffa_host_unshare_ranges(ranges, nshared));
+		ret = FFA_RET_DENIED;
+	}
+
+	return ret;
+}
+
+static int ffa_host_unshare_ranges(struct ffa_mem_region_addr_range *ranges,
+				   u32 nranges)
+{
+	u32 nunshared = __ffa_host_unshare_ranges(ranges, nranges);
+	int ret = 0;
+
+	if (nunshared != nranges) {
+		WARN_ON(__ffa_host_share_ranges(ranges, nunshared));
+		ret = FFA_RET_DENIED;
+	}
+
+	return ret;
+}
+
+static void do_ffa_mem_share(struct arm_smccc_res *res,
+			     struct kvm_cpu_context *ctxt)
+{
+	DECLARE_REG(u32, len, ctxt, 1);
+	DECLARE_REG(u32, fraglen, ctxt, 2);
+	DECLARE_REG(u64, addr_mbz, ctxt, 3);
+	DECLARE_REG(u32, npages_mbz, ctxt, 4);
+	struct ffa_composite_mem_region *reg;
+	struct ffa_mem_region *buf;
+	int ret = 0;
+	u32 offset;
+
+	if (addr_mbz || npages_mbz || fraglen > len ||
+	    fraglen > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out;
+	}
+
+	if (fraglen < len) {
+		ret = FFA_RET_ABORTED;
+		goto out;
+	}
+
+	if (fraglen < sizeof(struct ffa_mem_region) +
+		      sizeof(struct ffa_mem_region_attributes)) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out;
+	}
+
+	hyp_spin_lock(&host_kvm.ffa.lock);
+	if (!host_kvm.ffa.tx) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out_unlock;
+	}
+
+	buf = ffa_buffers.tx;
+	memcpy(buf, host_kvm.ffa.tx, fraglen);
+
+	offset = buf->ep_mem_access[0].composite_off;
+	if (!offset || buf->ep_count != 1 || buf->sender_id != HOST_FFA_ID) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out_unlock;
+	}
+
+	if (fraglen < offset + sizeof(struct ffa_composite_mem_region)) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out_unlock;
+	}
+
+	reg = (void *)buf + offset;
+	if (fraglen < offset + sizeof(struct ffa_composite_mem_region) +
+		      reg->addr_range_cnt *
+		      sizeof(struct ffa_mem_region_addr_range)) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto out_unlock;
+	}
+
+	ret = ffa_host_share_ranges(reg->constituents, reg->addr_range_cnt);
+	if (ret)
+		goto out_unlock;
+
+	spmd_mem_share(res, len, fraglen);
+	if (res->a0 != FFA_SUCCESS) {
+		WARN_ON(ffa_host_unshare_ranges(reg->constituents,
+						reg->addr_range_cnt));
+	}
+
+out_unlock:
+	hyp_spin_unlock(&host_kvm.ffa.lock);
+out:
+	if (ret)
+		ffa_to_smccc_res(res, ret);
+	return;
+}
+
 static bool ffa_call_unsupported(u64 func_id)
 {
 	switch (func_id) {
@@ -279,6 +424,8 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 		goto out_handled;
 	case FFA_MEM_SHARE:
 	case FFA_FN64_MEM_SHARE:
+		do_ffa_mem_share(&res, host_ctxt);
+		goto out_handled;
 	case FFA_MEM_LEND:
 	case FFA_FN64_MEM_LEND:
 	case FFA_MEM_RECLAIM:
-- 
GitLab


From 60f0b180fefcdf0fef3d209cb1232fb715f619f7 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Wed, 2 Feb 2022 19:38:29 +0000
Subject: [PATCH 3971/4878] ANDROID: KVM: arm64: Handle FFA_MEM_RECLAIM calls
 from the host

Intecept FFA_MEM_RECLAIM calls from the host and transition the host
stage-2 page-table entries from the SHARED_OWNED state back to the OWNED
state once EL3 has confirmed that the secure mapping has been reclaimed.

Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I58365e1b3fafa47f290a292fe57f6d2ed7f9091b
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 81 ++++++++++++++++++++++++++++++++++-
 1 file changed, 80 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 7fe3bfd1bdb5f..d882edb3db49b 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -122,6 +122,23 @@ static void spmd_mem_share(struct arm_smccc_res *res, u32 len, u32 fraglen)
 			  res);
 }
 
+static void spmd_mem_reclaim(struct arm_smccc_res *res, u32 handle_lo,
+			     u32 handle_hi, u32 flags)
+{
+	arm_smccc_1_1_smc(FFA_MEM_RECLAIM,
+			  handle_lo, handle_hi, flags,
+			  0, 0, 0, 0,
+			  res);
+}
+
+static void spmd_retrieve_req(struct arm_smccc_res *res, u32 len)
+{
+	arm_smccc_1_1_smc(FFA_FN64_MEM_RETRIEVE_REQ,
+			  len, len,
+			  0, 0, 0, 0, 0,
+			  res);
+}
+
 static void do_ffa_rxtx_map(struct arm_smccc_res *res,
 			    struct kvm_cpu_context *ctxt)
 {
@@ -346,6 +363,66 @@ out:
 	return;
 }
 
+static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
+			       struct kvm_cpu_context *ctxt)
+{
+	DECLARE_REG(u32, handle_lo, ctxt, 1);
+	DECLARE_REG(u32, handle_hi, ctxt, 2);
+	DECLARE_REG(u32, flags, ctxt, 3);
+	struct ffa_composite_mem_region *reg;
+	struct ffa_mem_region *buf;
+	int ret = 0;
+	u32 offset;
+	u64 handle;
+
+	handle = PACK_HANDLE(handle_lo, handle_hi);
+
+	hyp_spin_lock(&host_kvm.ffa.lock);
+
+	buf = ffa_buffers.tx;
+	*buf = (struct ffa_mem_region) {
+		.sender_id	= HOST_FFA_ID,
+		.handle		= handle,
+	};
+
+	spmd_retrieve_req(res, sizeof(*buf));
+	buf = ffa_buffers.rx;
+	if (res->a0 != FFA_MEM_RETRIEVE_RESP)
+		goto out_unlock;
+
+	/* Check for fragmentation */
+	if (res->a1 != res->a2) {
+		ret = FFA_RET_ABORTED;
+		goto out_unlock;
+	}
+
+	offset = buf->ep_mem_access[0].composite_off;
+	/*
+	 * We can trust the SPMD to get this right, but let's at least
+	 * check that we end up with something that doesn't look _completely_
+	 * bogus.
+	 */
+	if (WARN_ON(offset > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE)) {
+		ret = FFA_RET_ABORTED;
+		goto out_unlock;
+	}
+
+	reg = (void *)buf + offset;
+	spmd_mem_reclaim(res, handle_lo, handle_hi, flags);
+	if (res->a0 != FFA_SUCCESS)
+		goto out_unlock;
+
+	/* If the SPMD was happy, then we should be too. */
+	WARN_ON(ffa_host_unshare_ranges(reg->constituents,
+					reg->addr_range_cnt));
+out_unlock:
+	hyp_spin_unlock(&host_kvm.ffa.lock);
+
+	if (ret)
+		ffa_to_smccc_res(res, ret);
+	return;
+}
+
 static bool ffa_call_unsupported(u64 func_id)
 {
 	switch (func_id) {
@@ -426,9 +503,11 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 	case FFA_FN64_MEM_SHARE:
 		do_ffa_mem_share(&res, host_ctxt);
 		goto out_handled;
+	case FFA_MEM_RECLAIM:
+		do_ffa_mem_reclaim(&res, host_ctxt);
+		goto out_handled;
 	case FFA_MEM_LEND:
 	case FFA_FN64_MEM_LEND:
-	case FFA_MEM_RECLAIM:
 	case FFA_MEM_FRAG_TX:
 		break;
 	}
-- 
GitLab


From 4803953cd2f3a5a3f71932835e2f0aa0c47ba3bc Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 4 Feb 2022 18:17:25 +0000
Subject: [PATCH 3972/4878] ANDROID: KVM: arm64: Handle FFA_MEM_LEND calls from
 the host

Handle FFA_MEM_LEND calls from the host by treating them identically to
FFA_MEM_SHARE calls for the purposes of the host stage-2 page-table, but
forwarding on the original request to EL3.

Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I8f53bca6f0865fabd9938eefd8427fa0e78016ed
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index d882edb3db49b..68b11fa743e0f 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -114,10 +114,10 @@ static int spmd_unmap_ffa_buffers(void)
 	return res.a0 == FFA_SUCCESS ? FFA_RET_SUCCESS : res.a2;
 }
 
-static void spmd_mem_share(struct arm_smccc_res *res, u32 len, u32 fraglen)
+static void spmd_mem_xfer(struct arm_smccc_res *res, u64 func_id, u32 len,
+			  u32 fraglen)
 {
-	arm_smccc_1_1_smc(FFA_FN64_MEM_SHARE,
-			  len, fraglen,
+	arm_smccc_1_1_smc(func_id, len, fraglen,
 			  0, 0, 0, 0, 0,
 			  res);
 }
@@ -288,8 +288,9 @@ static int ffa_host_unshare_ranges(struct ffa_mem_region_addr_range *ranges,
 	return ret;
 }
 
-static void do_ffa_mem_share(struct arm_smccc_res *res,
-			     struct kvm_cpu_context *ctxt)
+static __always_inline void do_ffa_mem_xfer(const u64 func_id,
+					    struct arm_smccc_res *res,
+					    struct kvm_cpu_context *ctxt)
 {
 	DECLARE_REG(u32, len, ctxt, 1);
 	DECLARE_REG(u32, fraglen, ctxt, 2);
@@ -300,6 +301,9 @@ static void do_ffa_mem_share(struct arm_smccc_res *res,
 	int ret = 0;
 	u32 offset;
 
+	BUILD_BUG_ON(func_id != FFA_FN64_MEM_SHARE &&
+		     func_id != FFA_FN64_MEM_LEND);
+
 	if (addr_mbz || npages_mbz || fraglen > len ||
 	    fraglen > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE) {
 		ret = FFA_RET_INVALID_PARAMETERS;
@@ -349,7 +353,7 @@ static void do_ffa_mem_share(struct arm_smccc_res *res,
 	if (ret)
 		goto out_unlock;
 
-	spmd_mem_share(res, len, fraglen);
+	spmd_mem_xfer(res, func_id, len, fraglen);
 	if (res->a0 != FFA_SUCCESS) {
 		WARN_ON(ffa_host_unshare_ranges(reg->constituents,
 						reg->addr_range_cnt));
@@ -501,13 +505,15 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 		goto out_handled;
 	case FFA_MEM_SHARE:
 	case FFA_FN64_MEM_SHARE:
-		do_ffa_mem_share(&res, host_ctxt);
+		do_ffa_mem_xfer(FFA_FN64_MEM_SHARE, &res, host_ctxt);
 		goto out_handled;
 	case FFA_MEM_RECLAIM:
 		do_ffa_mem_reclaim(&res, host_ctxt);
 		goto out_handled;
 	case FFA_MEM_LEND:
 	case FFA_FN64_MEM_LEND:
+		do_ffa_mem_xfer(FFA_FN64_MEM_LEND, &res, host_ctxt);
+		goto out_handled;
 	case FFA_MEM_FRAG_TX:
 		break;
 	}
-- 
GitLab


From 1b24ee572d488b303fc4ecb66623eebccec8bcee Mon Sep 17 00:00:00 2001
From: Andrew Walbran <qwandor@google.com>
Date: Fri, 4 Feb 2022 09:27:27 +0000
Subject: [PATCH 3973/4878] ANDROID: KVM: arm64: pkvm: Add support for
 fragmented FF-A descriptors

FF-A memory descriptors may need to be sent in fragments when they don't
fit in the mailboxes. Doing so involves using the FRAG_TX and FRAG_RX
primitives defined in the FF-A protocol.

Add support in the pKVM FF-A relayer for fragmented descriptors by
monitoring outgoing FRAG_TX transactions and by buffering large
descriptors on the reclaim path.

Co-developed-by: Quentin Perret <qperret@google.com>
Signed-off-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 171706629
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I701f279cd4820abb0b6d7c2572ee28e0f943edad
---
 arch/arm64/include/asm/kvm_pkvm.h |  17 ++-
 arch/arm64/kvm/hyp/nvhe/ffa.c     | 170 +++++++++++++++++++++++++-----
 2 files changed, 161 insertions(+), 26 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 2b8db15104933..84e09347c8148 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -7,7 +7,9 @@
 #ifndef __ARM64_KVM_PKVM_H__
 #define __ARM64_KVM_PKVM_H__
 
+#include <linux/arm_ffa.h>
 #include <linux/memblock.h>
+#include <linux/scatterlist.h>
 #include <asm/kvm_pgtable.h>
 #include <asm/sysreg.h>
 
@@ -326,8 +328,19 @@ static inline unsigned long host_s2_pgtable_pages(void)
 
 static inline unsigned long hyp_ffa_proxy_pages(void)
 {
-	/* A page each for the hypervisor's RX and TX mailboxes. */
-	return 2 * KVM_FFA_MBOX_NR_PAGES;
+	size_t desc_max;
+
+	/*
+	 * The hypervisor FFA proxy needs enough memory to buffer a fragmented
+	 * descriptor returned from EL3 in response to a RETRIEVE_REQ call.
+	 */
+	desc_max = sizeof(struct ffa_mem_region) +
+		   sizeof(struct ffa_mem_region_attributes) +
+		   sizeof(struct ffa_composite_mem_region) +
+		   SG_MAX_SEGMENTS * sizeof(struct ffa_mem_region_addr_range);
+
+	/* Plus a page each for the hypervisor's RX and TX mailboxes. */
+	return (2 * KVM_FFA_MBOX_NR_PAGES) + DIV_ROUND_UP(desc_max, PAGE_SIZE);
 }
 
 #endif	/* __ARM64_KVM_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 68b11fa743e0f..c524a60d84231 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -41,6 +41,18 @@
  */
 #define HOST_FFA_ID	0
 
+/*
+ * A buffer to hold the maximum descriptor size we can see from the host,
+ * which is required when the SPMD returns a fragmented FFA_MEM_RETRIEVE_RESP
+ * when resolving the handle on the reclaim path.
+ */
+struct kvm_ffa_descriptor_buffer {
+	void	*buf;
+	size_t	len;
+};
+
+static struct kvm_ffa_descriptor_buffer ffa_desc_buf;
+
 /*
  * Note that we don't currently lock these buffers explicitly, instead
  * relying on the locking of the host FFA buffers as we only have one
@@ -114,6 +126,24 @@ static int spmd_unmap_ffa_buffers(void)
 	return res.a0 == FFA_SUCCESS ? FFA_RET_SUCCESS : res.a2;
 }
 
+static void spmd_mem_frag_tx(struct arm_smccc_res *res, u32 handle_lo,
+			     u32 handle_hi, u32 fraglen, u32 endpoint_id)
+{
+	arm_smccc_1_1_smc(FFA_MEM_FRAG_TX,
+			  handle_lo, handle_hi, fraglen, endpoint_id,
+			  0, 0, 0,
+			  res);
+}
+
+static void spmd_mem_frag_rx(struct arm_smccc_res *res, u32 handle_lo,
+			     u32 handle_hi, u32 fragoff)
+{
+	arm_smccc_1_1_smc(FFA_MEM_FRAG_RX,
+			  handle_lo, handle_hi, fragoff, HOST_FFA_ID,
+			  0, 0, 0,
+			  res);
+}
+
 static void spmd_mem_xfer(struct arm_smccc_res *res, u64 func_id, u32 len,
 			  u32 fraglen)
 {
@@ -288,6 +318,64 @@ static int ffa_host_unshare_ranges(struct ffa_mem_region_addr_range *ranges,
 	return ret;
 }
 
+static void do_ffa_mem_frag_tx(struct arm_smccc_res *res,
+			       struct kvm_cpu_context *ctxt)
+{
+	DECLARE_REG(u32, handle_lo, ctxt, 1);
+	DECLARE_REG(u32, handle_hi, ctxt, 2);
+	DECLARE_REG(u32, fraglen, ctxt, 3);
+	DECLARE_REG(u32, endpoint_id, ctxt, 4);
+	struct ffa_mem_region_addr_range *buf;
+	int ret = FFA_RET_INVALID_PARAMETERS;
+	u32 nr_ranges;
+
+	if (fraglen > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE)
+		goto out;
+
+	if (fraglen % sizeof(*buf))
+		goto out;
+
+	hyp_spin_lock(&host_kvm.ffa.lock);
+	if (!host_kvm.ffa.tx)
+		goto out_unlock;
+
+	buf = ffa_buffers.tx;
+	memcpy(buf, host_kvm.ffa.tx, fraglen);
+	nr_ranges = fraglen / sizeof(*buf);
+
+	ret = ffa_host_share_ranges(buf, nr_ranges);
+	if (ret) {
+		/*
+		 * We're effectively aborting the transaction, so we need
+		 * to restore the global state back to what it was prior to
+		 * transmission of the first fragment.
+		 */
+		spmd_mem_reclaim(res, handle_lo, handle_hi, 0);
+		WARN_ON(res->a0 != FFA_SUCCESS);
+		goto out_unlock;
+	}
+
+	spmd_mem_frag_tx(res, handle_lo, handle_hi, fraglen, endpoint_id);
+	if (res->a0 != FFA_SUCCESS && res->a0 != FFA_MEM_FRAG_RX)
+		WARN_ON(ffa_host_unshare_ranges(buf, nr_ranges));
+
+out_unlock:
+	hyp_spin_unlock(&host_kvm.ffa.lock);
+out:
+	if (ret)
+		ffa_to_smccc_res(res, ret);
+
+	/*
+	 * If for any reason this did not succeed, we're in trouble as we have
+	 * now lost the content of the previous fragments and we can't rollback
+	 * the host stage-2 changes. The pages previously marked as shared will
+	 * remain stuck in that state forever, hence preventing the host from
+	 * sharing/donating them again and may possibly lead to subsequent
+	 * failures, but this will not compromise confidentiality.
+	 */
+	return;
+}
+
 static __always_inline void do_ffa_mem_xfer(const u64 func_id,
 					    struct arm_smccc_res *res,
 					    struct kvm_cpu_context *ctxt)
@@ -298,8 +386,8 @@ static __always_inline void do_ffa_mem_xfer(const u64 func_id,
 	DECLARE_REG(u32, npages_mbz, ctxt, 4);
 	struct ffa_composite_mem_region *reg;
 	struct ffa_mem_region *buf;
+	u32 offset, nr_ranges;
 	int ret = 0;
-	u32 offset;
 
 	BUILD_BUG_ON(func_id != FFA_FN64_MEM_SHARE &&
 		     func_id != FFA_FN64_MEM_LEND);
@@ -310,11 +398,6 @@ static __always_inline void do_ffa_mem_xfer(const u64 func_id,
 		goto out;
 	}
 
-	if (fraglen < len) {
-		ret = FFA_RET_ABORTED;
-		goto out;
-	}
-
 	if (fraglen < sizeof(struct ffa_mem_region) +
 		      sizeof(struct ffa_mem_region_attributes)) {
 		ret = FFA_RET_INVALID_PARAMETERS;
@@ -342,21 +425,26 @@ static __always_inline void do_ffa_mem_xfer(const u64 func_id,
 	}
 
 	reg = (void *)buf + offset;
-	if (fraglen < offset + sizeof(struct ffa_composite_mem_region) +
-		      reg->addr_range_cnt *
-		      sizeof(struct ffa_mem_region_addr_range)) {
+	nr_ranges = ((void *)buf + fraglen) - (void *)reg->constituents;
+	if (nr_ranges % sizeof(reg->constituents[0])) {
 		ret = FFA_RET_INVALID_PARAMETERS;
 		goto out_unlock;
 	}
 
-	ret = ffa_host_share_ranges(reg->constituents, reg->addr_range_cnt);
+	nr_ranges /= sizeof(reg->constituents[0]);
+	ret = ffa_host_share_ranges(reg->constituents, nr_ranges);
 	if (ret)
 		goto out_unlock;
 
 	spmd_mem_xfer(res, func_id, len, fraglen);
-	if (res->a0 != FFA_SUCCESS) {
-		WARN_ON(ffa_host_unshare_ranges(reg->constituents,
-						reg->addr_range_cnt));
+	if (fraglen != len) {
+		if (res->a0 != FFA_MEM_FRAG_RX)
+			goto err_unshare;
+
+		if (res->a3 != fraglen)
+			goto err_unshare;
+	} else if (res->a0 != FFA_SUCCESS) {
+		goto err_unshare;
 	}
 
 out_unlock:
@@ -365,6 +453,10 @@ out:
 	if (ret)
 		ffa_to_smccc_res(res, ret);
 	return;
+
+err_unshare:
+	WARN_ON(ffa_host_unshare_ranges(reg->constituents, nr_ranges));
+	goto out_unlock;
 }
 
 static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
@@ -374,9 +466,9 @@ static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
 	DECLARE_REG(u32, handle_hi, ctxt, 2);
 	DECLARE_REG(u32, flags, ctxt, 3);
 	struct ffa_composite_mem_region *reg;
+	u32 offset, len, fraglen, fragoff;
 	struct ffa_mem_region *buf;
 	int ret = 0;
-	u32 offset;
 	u64 handle;
 
 	handle = PACK_HANDLE(handle_lo, handle_hi);
@@ -394,11 +486,8 @@ static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
 	if (res->a0 != FFA_MEM_RETRIEVE_RESP)
 		goto out_unlock;
 
-	/* Check for fragmentation */
-	if (res->a1 != res->a2) {
-		ret = FFA_RET_ABORTED;
-		goto out_unlock;
-	}
+	len = res->a1;
+	fraglen = res->a2;
 
 	offset = buf->ep_mem_access[0].composite_off;
 	/*
@@ -406,16 +495,36 @@ static void do_ffa_mem_reclaim(struct arm_smccc_res *res,
 	 * check that we end up with something that doesn't look _completely_
 	 * bogus.
 	 */
-	if (WARN_ON(offset > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE)) {
+	if (WARN_ON(offset > len ||
+		    fraglen > KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE)) {
 		ret = FFA_RET_ABORTED;
 		goto out_unlock;
 	}
 
-	reg = (void *)buf + offset;
+	if (len > ffa_desc_buf.len) {
+		ret = FFA_RET_NO_MEMORY;
+		goto out_unlock;
+	}
+
+	buf = ffa_desc_buf.buf;
+	memcpy(buf, ffa_buffers.rx, fraglen);
+
+	for (fragoff = fraglen; fragoff < len; fragoff += fraglen) {
+		spmd_mem_frag_rx(res, handle_lo, handle_hi, fragoff);
+		if (res->a0 != FFA_MEM_FRAG_TX) {
+			ret = FFA_RET_INVALID_PARAMETERS;
+			goto out_unlock;
+		}
+
+		fraglen = res->a3;
+		memcpy((void *)buf + fragoff, ffa_buffers.rx, fraglen);
+	}
+
 	spmd_mem_reclaim(res, handle_lo, handle_hi, flags);
 	if (res->a0 != FFA_SUCCESS)
 		goto out_unlock;
 
+	reg = (void *)buf + offset;
 	/* If the SPMD was happy, then we should be too. */
 	WARN_ON(ffa_host_unshare_ranges(reg->constituents,
 					reg->addr_range_cnt));
@@ -515,7 +624,8 @@ bool kvm_host_ffa_handler(struct kvm_cpu_context *host_ctxt)
 		do_ffa_mem_xfer(FFA_FN64_MEM_LEND, &res, host_ctxt);
 		goto out_handled;
 	case FFA_MEM_FRAG_TX:
-		break;
+		do_ffa_mem_frag_tx(&res, host_ctxt);
+		goto out_handled;
 	}
 
 	if (!ffa_call_unsupported(func_id))
@@ -531,6 +641,7 @@ int hyp_ffa_init(void *pages)
 {
 	struct arm_smccc_res res;
 	size_t min_rxtx_sz;
+	void *tx, *rx;
 
 	if (kvm_host_psci_config.smccc_version < ARM_SMCCC_VERSION_1_2)
 		return 0;
@@ -571,10 +682,21 @@ int hyp_ffa_init(void *pages)
 	if (min_rxtx_sz > PAGE_SIZE)
 		return -EOPNOTSUPP;
 
+	tx = pages;
+	pages += KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE;
+	rx = pages;
+	pages += KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE;
+
+	ffa_desc_buf = (struct kvm_ffa_descriptor_buffer) {
+		.buf	= pages,
+		.len	= PAGE_SIZE *
+			  (hyp_ffa_proxy_pages() - (2 * KVM_FFA_MBOX_NR_PAGES)),
+	};
+
 	ffa_buffers = (struct kvm_ffa_buffers) {
 		.lock	= __HYP_SPIN_LOCK_UNLOCKED,
-		.tx	= pages,
-		.rx	= pages + (KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE),
+		.tx	= tx,
+		.rx	= rx,
 	};
 
 	host_kvm.ffa = (struct kvm_ffa_buffers) {
-- 
GitLab


From 8fa8dfc519140907ca0919409013040001947da6 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Mon, 7 Feb 2022 16:01:56 -0800
Subject: [PATCH 3974/4878] ANDROID: fuse: add bpf support for removexattr

Bug: 218393120
Test: fuse_test#bpf_test_xattr
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Idf69b5b70c5dc5f09270146fe8c574ac1bde7be6
---
 fs/fuse/backing.c                             | 33 +++++++++++++++++++
 fs/fuse/fuse_i.h                              |  8 +++++
 fs/fuse/xattr.c                               |  9 ++++-
 .../selftests/filesystems/fuse/bpf_loader.c   | 14 ++++++++
 .../selftests/filesystems/fuse/fuse_test.c    |  8 +++++
 .../selftests/filesystems/fuse/test_bpf.c     |  7 ++++
 .../selftests/filesystems/fuse/test_fuse.h    |  1 +
 7 files changed, 79 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 98f65cde6bdc2..8da15a080c8fd 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -661,6 +661,39 @@ void *fuse_setxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
 	return NULL;
 }
 
+int fuse_removexattr_initialize(struct fuse_args *fa,
+				struct fuse_dummy_io *unused,
+				struct dentry *dentry, const char *name)
+{
+	*fa = (struct fuse_args) {
+		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
+		.opcode = FUSE_REMOVEXATTR,
+		.in_numargs = 1,
+		.in_args[0] = (struct fuse_in_arg) {
+			.size = strlen(name) + 1,
+			.value = name,
+		},
+	};
+
+	return 0;
+}
+
+int fuse_removexattr_backing(struct fuse_args *fa,
+			     struct dentry *dentry, const char *name)
+{
+	struct path *backing_path =
+		&get_fuse_dentry(dentry)->backing_path;
+
+	/* TODO account for changes of the name by prefilter */
+	return vfs_removexattr(backing_path->dentry, name);
+}
+
+void *fuse_removexattr_finalize(struct fuse_args *fa,
+				struct dentry *dentry, const char *name)
+{
+	return NULL;
+}
+
 int fuse_file_read_iter_initialize(
 		struct fuse_args *fa, struct fuse_read_in *fri,
 		struct kiocb *iocb, struct iov_iter *to)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 757086781819a..df55d41d6daf0 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1476,6 +1476,14 @@ void *fuse_setxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
 			     const char *name, const void *value, size_t size,
 			     int flags);
 
+int fuse_removexattr_initialize(struct fuse_args *fa,
+				struct fuse_dummy_io *unused,
+				struct dentry *dentry, const char *name);
+int fuse_removexattr_backing(struct fuse_args *fa,
+			     struct dentry *dentry, const char *name);
+void *fuse_removexattr_finalize(struct fuse_args *fa,
+				struct dentry *dentry, const char *name);
+
 int fuse_file_read_iter_initialize(
 		struct fuse_args *fa, struct fuse_read_in *fri,
 		struct kiocb *iocb, struct iov_iter *to);
diff --git a/fs/fuse/xattr.c b/fs/fuse/xattr.c
index 82dd7a8e4dc05..e9edbbcfcd5b2 100644
--- a/fs/fuse/xattr.c
+++ b/fs/fuse/xattr.c
@@ -217,10 +217,17 @@ static int fuse_xattr_set(const struct xattr_handler *handler,
 #ifdef CONFIG_FUSE_BPF
 	struct fuse_err_ret fer;
 
-	fer = fuse_bpf_backing(inode, struct fuse_setxattr_in,
+	if (value)
+		fer = fuse_bpf_backing(inode, struct fuse_setxattr_in,
 			       fuse_setxattr_initialize, fuse_setxattr_backing,
 			       fuse_setxattr_finalize, dentry, name, value,
 			       size, flags);
+	else
+		fer = fuse_bpf_backing(inode, struct fuse_dummy_io,
+				       fuse_removexattr_initialize,
+				       fuse_removexattr_backing,
+				       fuse_removexattr_finalize,
+				       dentry, name);
 	if (fer.ret)
 		return PTR_ERR(fer.result);
 #endif
diff --git a/tools/testing/selftests/filesystems/fuse/bpf_loader.c b/tools/testing/selftests/filesystems/fuse/bpf_loader.c
index db038fc16b398..bb33e661c2a9f 100644
--- a/tools/testing/selftests/filesystems/fuse/bpf_loader.c
+++ b/tools/testing/selftests/filesystems/fuse/bpf_loader.c
@@ -350,6 +350,20 @@ int s_setxattr(struct s pathname, const char name[], const void *value, size_t s
 	return res;
 }
 
+int s_removexattr(struct s pathname, const char name[])
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = removexattr(pathname.s, name);
+	free(pathname.s);
+	return res;
+}
+
 int s_rename(struct s oldpathname, struct s newpathname)
 {
 	int res;
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 3b3f83aab9e18..2f5c72d729d54 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -1076,6 +1076,14 @@ static int bpf_test_xattr(const char *mount_dir)
 	TESTEQUAL(xattr_size, xattr_size_ret);
 	TESTEQUAL(strcmp(xattr_value, xattr_value_ret), 0);
 
+	TESTSYSCALL(s_removexattr(s_path(s(mount_dir), s(file_name)), xattr_name));
+	TESTEQUAL(bpf_test_trace("removexattr"), 0);
+
+	TESTEQUAL(s_getxattr(s_path(s(mount_dir), s(file_name)), xattr_name,
+			       xattr_value_ret, sizeof(xattr_value_ret),
+			       &xattr_size_ret), -1);
+	TESTEQUAL(errno, ENODATA);
+
 	TESTSYSCALL(s_unlink(s_path(s(mount_dir), s(file_name))));
 	TESTEQUAL(bpf_test_trace("unlink"), 0);
 	TESTEQUAL(s_stat(s_path(s(ft_src), s(file_name)), &st), -1);
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
index 598bfd14301dd..9147a74b8e771 100644
--- a/tools/testing/selftests/filesystems/fuse/test_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -329,6 +329,13 @@ int trace_test(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_REMOVEXATTR | FUSE_PREFILTER: {
+		const char *name = fa->in_args[0].value;
+
+		bpf_printk("removexattr %s", name);
+		return FUSE_BPF_BACKING;
+	}
+
 	case FUSE_CANONICAL_PATH | FUSE_PREFILTER: {
 		bpf_printk("canonical_path");
 		return FUSE_BPF_BACKING;
diff --git a/tools/testing/selftests/filesystems/fuse/test_fuse.h b/tools/testing/selftests/filesystems/fuse/test_fuse.h
index 0929c3aca9ade..cf112c3872ffe 100644
--- a/tools/testing/selftests/filesystems/fuse/test_fuse.h
+++ b/tools/testing/selftests/filesystems/fuse/test_fuse.h
@@ -56,6 +56,7 @@ int s_getxattr(struct s pathname, const char name[], void *value, size_t size,
 int s_listxattr(struct s pathname, void *list, size_t size, ssize_t *ret_size);
 int s_setxattr(struct s pathname, const char name[], const void *value,
 	       size_t size, int flags);
+int s_removexattr(struct s pathname, const char name[]);
 int s_rename(struct s oldpathname, struct s newpathname);
 
 struct s tracing_folder(void);
-- 
GitLab


From c4ac8b424866f976d6c252cf178b1c81b193e752 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Mon, 7 Feb 2022 18:02:17 -0800
Subject: [PATCH 3975/4878] ANDROID: fuse-bpf: fix fuse_create_open_finalize

If we hit an error during fuse_create_open, some variables will be
undefined during the finalize, so check that they were actually
initialized before accessing.

Bug: 217570523
Test: attempt to over fill disk
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I094564b83e49eec2a6bac5bd050b4f7327b0c979
---
 fs/fuse/backing.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 8da15a080c8fd..ae4eb9d66781c 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -339,8 +339,10 @@ void *fuse_create_open_finalize(
 	struct fuse_entry_out *feo = fa->out_args[0].value;
 	struct fuse_open_out *foo = fa->out_args[1].value;
 
-	fi->nodeid = feo->nodeid;
-	ff->fh = foo->fh;
+	if (fi)
+		fi->nodeid = feo->nodeid;
+	if (ff)
+		ff->fh = foo->fh;
 	return 0;
 }
 
-- 
GitLab


From bea68245ef5ccc6aef4c1a3abfe0c3600522e4ca Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Tue, 15 Feb 2022 15:57:14 -0800
Subject: [PATCH 3976/4878] ANDROID: fuse-bpf: Fix filldir

filldir used strcpy, potentially leading to writing the ending null past
the current page. fuse_dirents are not null terminated, so we switch to
using memcpy to avoid adding an extraneous null, which would be
overwritten if the name was already byte aligned.

Bug: 217570523
Test: generic/027
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ic5d1f1887a113e1a3319998bad47cfbac3d90baa
---
 fs/fuse/backing.c                                    |  5 +++--
 tools/testing/selftests/filesystems/fuse/fuse_test.c | 10 ++++++----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index ae4eb9d66781c..e2c31647307f9 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -191,7 +191,8 @@ void *fuse_open_finalize(struct fuse_args *fa,
 	struct fuse_file *ff = file->private_data;
 	struct fuse_open_out *foo = fa->out_args[0].value;
 
-	ff->fh = foo->fh;
+	if (ff)
+		ff->fh = foo->fh;
 	return 0;
 }
 
@@ -1987,7 +1988,7 @@ static int filldir(struct dir_context *ctx, const char *name, int namelen,
 		.type = d_type,
 	};
 
-	strcpy(fd->name, name);
+	memcpy(fd->name, name, namelen);
 	ec->offset += FUSE_DIRENT_SIZE(fd);
 
 	return 0;
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 2f5c72d729d54..68a19808cbebe 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -524,12 +524,14 @@ static int bpf_test_redact_readdir(const char *mount_dir)
 				bool is_dot;
 
 				fuse_dirent_in = (struct fuse_dirent *) dirs_in;
-				is_dot = !strcmp(fuse_dirent_in->name, ".") ||
-					 !strcmp(fuse_dirent_in->name, "..");
+				is_dot = (fuse_dirent_in->namelen == 1 &&
+						!strncmp(fuse_dirent_in->name, ".", 1)) ||
+					 (fuse_dirent_in->namelen == 2 &&
+						!strncmp(fuse_dirent_in->name, "..", 2));
 
 				dir_ent_len = FUSE_DIRENT_ALIGN(
 					sizeof(*fuse_dirent_in) +
-					fuse_dirent_in->namelen + 1);
+					fuse_dirent_in->namelen);
 
 				if (dirs_in + dir_ent_len < bytes_in + res)
 					next = (struct fuse_dirent *)
@@ -538,7 +540,7 @@ static int bpf_test_redact_readdir(const char *mount_dir)
 				if (!skip || is_dot) {
 					memcpy(dirs_out, fuse_dirent_in,
 					       sizeof(struct fuse_dirent) +
-					       fuse_dirent_in->namelen + 1);
+					       fuse_dirent_in->namelen);
 					length_out += dir_ent_len;
 				}
 				again = ((skip && !is_dot) && next);
-- 
GitLab


From de92205dacdb205dde143fea40e44e3ca37a58fd Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 2 Feb 2022 17:36:24 -0800
Subject: [PATCH 3977/4878] ANDROID: fuse-bpf: Support FUSE_STATFS

Adds support for FUSE_STATFS, needed to run various filesystem tests

Bug: 217570523
Test: bpf_test_statfs
Change-Id: I5ee13e880118c5c79c4ca17bb2e902a3e17a7eb8
Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 fs/fuse/backing.c                             | 50 +++++++++++++++++++
 fs/fuse/fuse_i.h                              | 37 ++++++++++++++
 fs/fuse/inode.c                               | 28 +++++------
 .../selftests/filesystems/fuse/bpf_loader.c   | 15 ++++++
 .../selftests/filesystems/fuse/fd_bpf.c       |  5 ++
 .../selftests/filesystems/fuse/fuse_test.c    | 29 +++++++++++
 .../selftests/filesystems/fuse/test_bpf.c     |  5 ++
 .../selftests/filesystems/fuse/test_fuse.h    |  2 +
 8 files changed, 155 insertions(+), 16 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index e2c31647307f9..f7629c0f096c0 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1786,6 +1786,56 @@ void *fuse_setattr_finalize(struct fuse_args *fa,
 	return NULL;
 }
 
+int fuse_statfs_initialize(
+		struct fuse_args *fa, struct fuse_statfs_out *fso,
+		struct dentry *dentry, struct kstatfs *buf)
+{
+	*fso = (struct fuse_statfs_out) {0};
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(d_inode(dentry)),
+		.opcode = FUSE_STATFS,
+		.out_numargs = 1,
+		.out_numargs = 1,
+		.out_args[0].size = sizeof(fso),
+		.out_args[0].value = fso,
+	};
+
+	return 0;
+}
+
+int fuse_statfs_backing(
+		struct fuse_args *fa,
+		struct dentry *dentry, struct kstatfs *buf)
+{
+	int err = 0;
+	struct path backing_path;
+	struct fuse_statfs_out *fso = fa->out_args[0].value;
+
+	get_fuse_backing_path(dentry, &backing_path);
+	if (!backing_path.dentry)
+		return -EBADF;
+	err = vfs_statfs(&backing_path, buf);
+	path_put(&backing_path);
+	buf->f_type = FUSE_SUPER_MAGIC;
+
+	//TODO Provide postfilter opportunity to modify
+	if (!err)
+		convert_statfs_to_fuse(&fso->st, buf);
+
+	return err;
+}
+
+void *fuse_statfs_finalize(
+		struct fuse_args *fa,
+		struct dentry *dentry, struct kstatfs *buf)
+{
+	struct fuse_statfs_out *fso = fa->out_args[0].value;
+
+	if (!fa->error_in)
+		convert_fuse_statfs(buf, &fso->st);
+	return NULL;
+}
+
 int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *unused,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index df55d41d6daf0..527f20bb455d6 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -33,6 +33,9 @@
 #include <linux/pid_namespace.h>
 #include <linux/refcount.h>
 #include <linux/user_namespace.h>
+#include <linux/statfs.h>
+
+#define FUSE_SUPER_MAGIC 0x65735546
 
 /** Default max number of pages that can be used in a single read request */
 #define FUSE_DEFAULT_MAX_PAGES_PER_REQ 32
@@ -1567,6 +1570,13 @@ int fuse_setattr_backing(struct fuse_args *fa,
 void *fuse_setattr_finalize(struct fuse_args *fa,
 		struct dentry *dentry, struct iattr *attr, struct file *file);
 
+int fuse_statfs_initialize(struct fuse_args *fa, struct fuse_statfs_out *fso,
+		struct dentry *dentry, struct kstatfs *buf);
+int fuse_statfs_backing(struct fuse_args *fa,
+		struct dentry *dentry, struct kstatfs *buf);
+void *fuse_statfs_finalize(struct fuse_args *fa,
+		struct dentry *dentry, struct kstatfs *buf);
+
 int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *dummy,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out);
@@ -1708,6 +1718,33 @@ static inline int finalize_attr(struct inode *inode, struct fuse_attr_out *outar
 	return err;
 }
 
+static inline void convert_statfs_to_fuse(struct fuse_kstatfs *attr, struct kstatfs *stbuf)
+{
+	attr->bsize   = stbuf->f_bsize;
+	attr->frsize  = stbuf->f_frsize;
+	attr->blocks  = stbuf->f_blocks;
+	attr->bfree   = stbuf->f_bfree;
+	attr->bavail  = stbuf->f_bavail;
+	attr->files   = stbuf->f_files;
+	attr->ffree   = stbuf->f_ffree;
+	attr->namelen = stbuf->f_namelen;
+	/* fsid is left zero */
+}
+
+static inline void convert_fuse_statfs(struct kstatfs *stbuf, struct fuse_kstatfs *attr)
+{
+	stbuf->f_type    = FUSE_SUPER_MAGIC;
+	stbuf->f_bsize   = attr->bsize;
+	stbuf->f_frsize  = attr->frsize;
+	stbuf->f_blocks  = attr->blocks;
+	stbuf->f_bfree   = attr->bfree;
+	stbuf->f_bavail  = attr->bavail;
+	stbuf->f_files   = attr->files;
+	stbuf->f_ffree   = attr->ffree;
+	stbuf->f_namelen = attr->namelen;
+	/* fsid is left zero */
+}
+
 #ifdef CONFIG_FUSE_BPF
 struct fuse_err_ret {
 	void *result;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 216e5db7188bc..099dc19c9018f 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -50,8 +50,6 @@ MODULE_PARM_DESC(max_user_congthresh,
  "Global limit for the maximum congestion threshold an "
  "unprivileged user can set");
 
-#define FUSE_SUPER_MAGIC 0x65735546
-
 #define FUSE_DEFAULT_BLKSIZE 512
 
 /** Maximum number of outstanding background requests */
@@ -549,20 +547,6 @@ static void fuse_put_super(struct super_block *sb)
 	fuse_mount_put(fm);
 }
 
-static void convert_fuse_statfs(struct kstatfs *stbuf, struct fuse_kstatfs *attr)
-{
-	stbuf->f_type    = FUSE_SUPER_MAGIC;
-	stbuf->f_bsize   = attr->bsize;
-	stbuf->f_frsize  = attr->frsize;
-	stbuf->f_blocks  = attr->blocks;
-	stbuf->f_bfree   = attr->bfree;
-	stbuf->f_bavail  = attr->bavail;
-	stbuf->f_files   = attr->files;
-	stbuf->f_ffree   = attr->ffree;
-	stbuf->f_namelen = attr->namelen;
-	/* fsid is left zero */
-}
-
 static int fuse_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;
@@ -570,12 +554,24 @@ static int fuse_statfs(struct dentry *dentry, struct kstatfs *buf)
 	FUSE_ARGS(args);
 	struct fuse_statfs_out outarg;
 	int err;
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+#endif
 
 	if (!fuse_allow_current_process(fm->fc)) {
 		buf->f_type = FUSE_SUPER_MAGIC;
 		return 0;
 	}
 
+#ifdef CONFIG_FUSE_BPF
+	fer = fuse_bpf_backing(dentry->d_inode, struct fuse_statfs_out,
+			       fuse_statfs_initialize, fuse_statfs_backing,
+			       fuse_statfs_finalize,
+			       dentry, buf);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	memset(&outarg, 0, sizeof(outarg));
 	args.in_numargs = 0;
 	args.opcode = FUSE_STATFS;
diff --git a/tools/testing/selftests/filesystems/fuse/bpf_loader.c b/tools/testing/selftests/filesystems/fuse/bpf_loader.c
index bb33e661c2a9f..6377c18d38c1c 100644
--- a/tools/testing/selftests/filesystems/fuse/bpf_loader.c
+++ b/tools/testing/selftests/filesystems/fuse/bpf_loader.c
@@ -16,6 +16,7 @@
 
 #include <sys/mount.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
 #include <sys/xattr.h>
 
 #include <linux/unistd.h>
@@ -302,6 +303,20 @@ int s_stat(struct s pathname, struct stat *st)
 	return res;
 }
 
+int s_statfs(struct s pathname, struct statfs *st)
+{
+	int res;
+
+	if (!pathname.s) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	res = statfs(pathname.s, st);
+	free(pathname.s);
+	return res;
+}
+
 DIR *s_opendir(struct s pathname)
 {
 	DIR *res;
diff --git a/tools/testing/selftests/filesystems/fuse/fd_bpf.c b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
index b07aa7c887195..f54d04bbb20cd 100644
--- a/tools/testing/selftests/filesystems/fuse/fd_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
@@ -284,6 +284,11 @@ int trace_daemon(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_STATFS | FUSE_PREFILTER: {
+		bpf_printk("statfs %d", fa->nodeid);
+		return FUSE_BPF_BACKING;
+	}
+
 	default:
 		if (fa->opcode & FUSE_PREFILTER)
 			bpf_printk("prefilter *** UNKNOWN *** opcode: %d",
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 68a19808cbebe..96178eea67f86 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -1422,6 +1422,34 @@ out:
 	return result;
 }
 
+static int bpf_test_statfs(const char *mount_dir)
+{
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+	struct statfs st;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TESTSYSCALL(s_statfs(s(mount_dir), &st));
+	TESTEQUAL(bpf_test_trace("statfs"), 0);
+	TESTEQUAL(st.f_type, 0x65735546);
+	result = TEST_SUCCESS;
+out:
+	close(fd);
+	umount(mount_dir);
+	close(fuse_dev);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
 static int parse_options(int argc, char *const *argv)
 {
 	signed char c;
@@ -1524,6 +1552,7 @@ int main(int argc, char *argv[])
 		MAKE_TEST(mmap_test),
 		MAKE_TEST(readdir_perms_test),
 		MAKE_TEST(inotify_test),
+		MAKE_TEST(bpf_test_statfs),
 	};
 #undef MAKE_TEST
 
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
index 9147a74b8e771..7d8ef494c589b 100644
--- a/tools/testing/selftests/filesystems/fuse/test_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -341,6 +341,11 @@ int trace_test(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_STATFS | FUSE_PREFILTER: {
+		bpf_printk("statfs");
+		return FUSE_BPF_BACKING;
+	}
+
 	default:
 		bpf_printk("Unknown opcode %d", fa->opcode);
 		return 0;
diff --git a/tools/testing/selftests/filesystems/fuse/test_fuse.h b/tools/testing/selftests/filesystems/fuse/test_fuse.h
index cf112c3872ffe..2382d16edcc59 100644
--- a/tools/testing/selftests/filesystems/fuse/test_fuse.h
+++ b/tools/testing/selftests/filesystems/fuse/test_fuse.h
@@ -12,6 +12,7 @@
 
 #include <dirent.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
 #include <sys/types.h>
 
 #define PAGE_SIZE 4096
@@ -50,6 +51,7 @@ int s_openat(int dirfd, struct s pathname, int flags, ...);
 int s_creat(struct s pathname, mode_t mode);
 int s_mkfifo(struct s pathname, mode_t mode);
 int s_stat(struct s pathname, struct stat *st);
+int s_statfs(struct s pathname, struct statfs *st);
 DIR *s_opendir(struct s pathname);
 int s_getxattr(struct s pathname, const char name[], void *value, size_t size,
 	       ssize_t *ret_size);
-- 
GitLab


From 893a1432c1e8d8d0de42fdd90620e3636d93dd6a Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Wed, 16 Feb 2022 15:04:25 -0800
Subject: [PATCH 3978/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ifdace554aa674f9542015557a9a0358828c099c1
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index f7e438258efed..57c03cdd62468 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -218,6 +218,7 @@
   cma_alloc
   cma_for_each_area
   cma_get_name
+  cma_get_size
   cma_release
   compat_alloc_user_space
   complete
-- 
GitLab


From 7b87bbebf953ad6ccda8cde04287e76b43307466 Mon Sep 17 00:00:00 2001
From: Victor Liu <victorliu@google.com>
Date: Wed, 16 Feb 2022 14:34:25 -0800
Subject: [PATCH 3979/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 219993663
Signed-off-by: Victor Liu <victorliu@google.com>
Change-Id: I589611b220d31949589217302e7c878a36328551
---
 android/abi_gki_aarch64_generic | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 57c03cdd62468..b63bd77949bb9 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -128,6 +128,7 @@
   bpf_trace_run6
   bpf_trace_run7
   bpf_trace_run8
+  bpf_trace_run9
   build_skb
   bus_find_device
   bus_for_each_dev
@@ -1170,6 +1171,7 @@
   kstrtos8
   kstrtou16
   kstrtou8
+  kstrtou8_from_user
   kstrtouint
   kstrtouint_from_user
   kstrtoull
@@ -1760,6 +1762,7 @@
   sched_clock
   sched_feat_keys
   sched_setattr_nocheck
+  sched_set_fifo
   sched_setscheduler
   sched_setscheduler_nocheck
   sched_show_task
@@ -1987,6 +1990,7 @@
   spi_finalize_current_message
   spi_register_controller
   __spi_register_driver
+  spi_set_cs_timing
   spi_setup
   spi_sync
   spi_sync_locked
-- 
GitLab


From 23c9fbd4078740eea5199da176a12032f0508da1 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 27 Jan 2022 16:53:22 -0800
Subject: [PATCH 3980/4878] ANDROID: fuse: allow mounting with no userspace
 daemon

This is useful for testing fuse-bpf directly on a backing folder.

Bug: 217570523
Test: mount -t fuse [DEVNAME] [mntpoint] -o user_id=0,group_id=0,rootmode=0040000,
             no_daemon,root_dir=[backingfd]
Change-Id: I9ac13c3f707d71cbb74dba10eda5778bf3e83233
Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 fs/fuse/fuse_i.h |  4 ++++
 fs/fuse/inode.c  | 40 ++++++++++++++++++++++++++--------------
 2 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 527f20bb455d6..50784f39cba84 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -544,6 +544,7 @@ struct fuse_fs_context {
 	bool no_force_umount:1;
 	bool legacy_opts_show:1;
 	bool dax:1;
+	bool no_daemon:1;
 	unsigned int max_read;
 	unsigned int blksize;
 	const char *subtype;
@@ -792,6 +793,9 @@ struct fuse_conn {
 	/** Passthrough mode for read/write IO */
 	unsigned int passthrough:1;
 
+	/** BPF Only, no Daemon running */
+	unsigned int no_daemon:1;
+
 	/** The number of requests waiting for completion */
 	atomic_t num_waiting;
 
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 099dc19c9018f..e529fe0e147fa 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -598,6 +598,7 @@ enum {
 	OPT_BLKSIZE,
 	OPT_ROOT_BPF,
 	OPT_ROOT_DIR,
+	OPT_NO_DAEMON,
 	OPT_ERR
 };
 
@@ -614,6 +615,7 @@ static const struct fs_parameter_spec fuse_fs_parameters[] = {
 	fsparam_string	("subtype",		OPT_SUBTYPE),
 	fsparam_u32	("root_bpf",		OPT_ROOT_BPF),
 	fsparam_u32	("root_dir",		OPT_ROOT_DIR),
+	fsparam_flag	("no_daemon",		OPT_NO_DAEMON),
 	{}
 };
 
@@ -712,6 +714,11 @@ static int fuse_parse_param(struct fs_context *fc, struct fs_parameter *param)
 			return invalfc(fc, "Unable to open root directory");
 		break;
 
+	case OPT_NO_DAEMON:
+		ctx->no_daemon = true;
+		ctx->fd_present = true;
+		break;
+
 	default:
 		return -EINVAL;
 	}
@@ -1267,7 +1274,7 @@ void fuse_send_init(struct fuse_mount *fm)
 	ia->args.nocreds = true;
 	ia->args.end = process_init_reply;
 
-	if (fuse_simple_background(fm, &ia->args, GFP_KERNEL) != 0)
+	if (unlikely(fm->fc->no_daemon) || fuse_simple_background(fm, &ia->args, GFP_KERNEL) != 0)
 		process_init_reply(fm, &ia->args, -ENOTCONN);
 }
 EXPORT_SYMBOL_GPL(fuse_send_init);
@@ -1513,6 +1520,7 @@ int fuse_fill_super_common(struct super_block *sb, struct fuse_fs_context *ctx)
 	fc->destroy = ctx->destroy;
 	fc->no_control = ctx->no_control;
 	fc->no_force_umount = ctx->no_force_umount;
+	fc->no_daemon = ctx->no_daemon;
 
 	err = -ENOMEM;
 	root = fuse_get_root_inode(sb, ctx->rootmode, ctx->root_bpf,
@@ -1564,18 +1572,20 @@ static int fuse_fill_super(struct super_block *sb, struct fs_context *fsc)
 	struct fuse_mount *fm;
 
 	err = -EINVAL;
-	file = fget(ctx->fd);
-	if (!file)
-		goto err;
+	if (!ctx->no_daemon) {
+		file = fget(ctx->fd);
+		if (!file)
+			goto err;
 
-	/*
-	 * Require mount to happen from the same user namespace which
-	 * opened /dev/fuse to prevent potential attacks.
-	 */
-	if ((file->f_op != &fuse_dev_operations) ||
-	    (file->f_cred->user_ns != sb->s_user_ns))
-		goto err_fput;
-	ctx->fudptr = &file->private_data;
+		/*
+		 * Require mount to happen from the same user namespace which
+		 * opened /dev/fuse to prevent potential attacks.
+		 */
+		if ((file->f_op != &fuse_dev_operations) ||
+		    (file->f_cred->user_ns != sb->s_user_ns))
+			goto err_fput;
+		ctx->fudptr = &file->private_data;
+	}
 
 	fc = kmalloc(sizeof(*fc), GFP_KERNEL);
 	err = -ENOMEM;
@@ -1601,7 +1611,8 @@ static int fuse_fill_super(struct super_block *sb, struct fs_context *fsc)
 	 * memory barrier for file->private_data to be visible on all
 	 * CPUs after this
 	 */
-	fput(file);
+	if (!ctx->no_daemon)
+		fput(file);
 	fuse_send_init(get_fuse_mount_super(sb));
 	return 0;
 
@@ -1609,7 +1620,8 @@ static int fuse_fill_super(struct super_block *sb, struct fs_context *fsc)
 	fuse_mount_put(fm);
 	sb->s_fs_info = NULL;
  err_fput:
-	fput(file);
+	if (!ctx->no_daemon)
+		fput(file);
  err:
 	return err;
 }
-- 
GitLab


From 9acfec13bc57c42ac82601b18635543f9e468c35 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Thu, 27 Jan 2022 19:57:09 +0000
Subject: [PATCH 3981/4878] FROMLIST: arm64/mte: Document ABI for asymmetric
 mode

MTE3 adds a new mode which is synchronous for writes but asynchronous for
reads. Document the userspace ABI for this feature, we call the new mode
ASYMM and add a new prctl flag and mte_tcf_preferred value for it.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20220127195712.748150-2-broonie@kernel.org/
Change-Id: Iad3a5d23b59656072ca5962b2012d74adc1b210b
Bug: 217221156
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/arm64/memory-tagging-extension.rst | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/Documentation/arm64/memory-tagging-extension.rst b/Documentation/arm64/memory-tagging-extension.rst
index 7b99c8f428eb6..5218b838d0629 100644
--- a/Documentation/arm64/memory-tagging-extension.rst
+++ b/Documentation/arm64/memory-tagging-extension.rst
@@ -76,6 +76,9 @@ configurable behaviours:
   with ``.si_code = SEGV_MTEAERR`` and ``.si_addr = 0`` (the faulting
   address is unknown).
 
+- *Asymmetric* - Reads are handled as for synchronous mode while writes
+  are handled as for asynchronous mode.
+
 The user can select the above modes, per thread, using the
 ``prctl(PR_SET_TAGGED_ADDR_CTRL, flags, 0, 0, 0)`` system call where ``flags``
 contains any number of the following values in the ``PR_MTE_TCF_MASK``
@@ -85,6 +88,7 @@ bit-field:
                          (ignored if combined with other options)
 - ``PR_MTE_TCF_SYNC``  - *Synchronous* tag check fault mode
 - ``PR_MTE_TCF_ASYNC`` - *Asynchronous* tag check fault mode
+- ``PR_MTE_TCF_ASYMM`` - *Asymmetric* tag check fault mode
 
 If no modes are specified, tag check faults are ignored. If a single
 mode is specified, the program will run in that mode. If multiple
@@ -139,16 +143,14 @@ tag checking mode as the CPU's preferred tag checking mode.
 
 The preferred tag checking mode for each CPU is controlled by
 ``/sys/devices/system/cpu/cpu<N>/mte_tcf_preferred``, to which a
-privileged user may write the value ``async`` or ``sync``.  The default
-preferred mode for each CPU is ``async``.
+privileged user may write the value ``async``, ``sync`` or ``asymm``.  The
+default preferred mode for each CPU is ``async``.
 
 To allow a program to potentially run in the CPU's preferred tag
 checking mode, the user program may set multiple tag check fault mode
 bits in the ``flags`` argument to the ``prctl(PR_SET_TAGGED_ADDR_CTRL,
 flags, 0, 0, 0)`` system call. If the CPU's preferred tag checking
-mode is in the task's set of provided tag checking modes (this will
-always be the case at present because the kernel only supports two
-tag checking modes, but future kernels may support more modes), that
+mode is in the task's set of provided tag checking modes, that
 mode will be selected. Otherwise, one of the modes in the task's mode
 set will be selected in a currently unspecified manner.
 
-- 
GitLab


From 147203c7a801af29bcfc84ee59ddfe8503b3044f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Thu, 27 Jan 2022 19:57:10 +0000
Subject: [PATCH 3982/4878] FROMLIST: arm64/mte: Add a little bit of
 documentation for mte_update_sctlr_user()

The code isn't that obscure but it probably won't hurt to have a little
bit more documentation for anyone trying to find out where everything
actually takes effect.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20220127195712.748150-3-broonie@kernel.org/
Bug: 217221156
Change-Id: I652d971654e81b0cd2647367ee4706c8976560ff
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/kernel/mte.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index f418ebc65f950..fa4001fee12a1 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -186,6 +186,11 @@ void mte_check_tfsr_el1(void)
 }
 #endif
 
+/*
+ * This is where we actually resolve the system and process MTE mode
+ * configuration into an actual value in SCTLR_EL1 that affects
+ * userspace.
+ */
 static void mte_update_sctlr_user(struct task_struct *task)
 {
 	/*
@@ -199,8 +204,17 @@ static void mte_update_sctlr_user(struct task_struct *task)
 	unsigned long pref, resolved_mte_tcf;
 
 	pref = __this_cpu_read(mte_tcf_preferred);
+	/*
+	 * If there is no overlap between the system preferred and
+	 * program requested values go with what was requested.
+	 */
 	resolved_mte_tcf = (mte_ctrl & pref) ? pref : mte_ctrl;
 	sctlr &= ~SCTLR_EL1_TCF0_MASK;
+	/*
+	 * Pick an actual setting. The order in which we check for
+	 * set bits and map into register values determines our
+	 * default order.
+	 */
 	if (resolved_mte_tcf & MTE_CTRL_TCF_ASYNC)
 		sctlr |= SCTLR_EL1_TCF0_ASYNC;
 	else if (resolved_mte_tcf & MTE_CTRL_TCF_SYNC)
-- 
GitLab


From 5154e80282e7acaf8fd13742cd7b08115ae14842 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Thu, 27 Jan 2022 19:57:11 +0000
Subject: [PATCH 3983/4878] BACKPORT: FROMLIST: arm64/mte: Add hwcap for
 asymmetric mode

(Backport: conflicts due to ECV, AFP, RPRES hw caps missing in the tree.)

Allow userspace to detect support for asymmetric mode by providing a hwcap
for it, using the official feature name FEAT_MTE3.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20220127195712.748150-4-broonie@kernel.org/
Bug: 217221156
Change-Id: I3b290073c79ed851b20a4b59ae58a23b4b7200b9
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 Documentation/arm64/elf_hwcaps.rst  | 5 +++++
 arch/arm64/include/asm/hwcap.h      | 1 +
 arch/arm64/include/uapi/asm/hwcap.h | 1 +
 arch/arm64/kernel/cpufeature.c      | 1 +
 arch/arm64/kernel/cpuinfo.c         | 1 +
 5 files changed, 9 insertions(+)

diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index bbd9cf54db6c7..3b1712ffeea3d 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -245,6 +245,11 @@ HWCAP2_MTE
     Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0010, as described
     by Documentation/arm64/memory-tagging-extension.rst.
 
+HWCAP2_MTE3
+
+    Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
+    by Documentation/arm64/memory-tagging-extension.rst.
+
 4. Unused AT_HWCAP bits
 -----------------------
 
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 9a5498c2c8eea..38e93b92713ca 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -105,6 +105,7 @@
 #define KERNEL_HWCAP_RNG		__khwcap2_feature(RNG)
 #define KERNEL_HWCAP_BTI		__khwcap2_feature(BTI)
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
+#define KERNEL_HWCAP_MTE3		__khwcap2_feature(MTE3)
 
 /*
  * This yields a mask that user programs can use to figure out what
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index b8f41aa234ee1..871a59b292d1a 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -75,5 +75,6 @@
 #define HWCAP2_RNG		(1 << 16)
 #define HWCAP2_BTI		(1 << 17)
 #define HWCAP2_MTE		(1 << 18)
+#define HWCAP2_MTE3		(1 << 22)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 3de010e8c5475..d3e90f914d9cb 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2431,6 +2431,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 #endif
 #ifdef CONFIG_ARM64_MTE
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE, CAP_HWCAP, KERNEL_HWCAP_MTE),
+	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE_ASYMM, CAP_HWCAP, KERNEL_HWCAP_MTE3),
 #endif /* CONFIG_ARM64_MTE */
 	{},
 };
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 8ce33742ad6a4..56012ec63ecad 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -94,6 +94,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_RNG]		= "rng",
 	[KERNEL_HWCAP_BTI]		= "bti",
 	[KERNEL_HWCAP_MTE]		= "mte",
+	[KERNEL_HWCAP_MTE3]		= "mte3",
 };
 
 #ifdef CONFIG_COMPAT
-- 
GitLab


From c90778c80c9f1b92c91fa5e63cf497b4018c0320 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Thu, 27 Jan 2022 19:57:12 +0000
Subject: [PATCH 3984/4878] FROMLIST: arm64/mte: Add userspace interface for
 enabling asymmetric mode

The architecture provides an asymmetric mode for MTE where tag mismatches
are checked asynchronously for reads but synchronously for loads. Allow
userspace processes to select this and make it available as a default mode
via the existing per-CPU sysfs interface.

Since there PR_MTE_TCF_ values are a bitmask (allowing the kernel to choose
between the multiple modes) and there are no free bits adjacent to the
existing PR_MTE_TCF_ bits the set of bits used to specify the mode becomes
disjoint. Programs using the new interface should be aware of this and
programs that do not use it will not see any change in behaviour.

When userspace requests two possible modes but the system default for the
CPU is the third mode (eg, default is synchronous but userspace requests
either asynchronous or asymmetric) the preference order is:

   ASYMM > ASYNC > SYNC

This situation is not currently possible since there are only two modes and
it is mandatory to have a system default so there could be no ambiguity and
there is no ABI change. The chosen order is basically arbitrary as we do not
have a clear metric for what is better here.

If userspace requests specifically asymmetric mode via the prctl() and the
system does not support it then we will return an error, this mirrors
how we handle the case where userspace enables MTE on a system that does
not support MTE at all and the behaviour that will be seen if running on
an older kernel that does not support userspace use of asymmetric mode.

Attempts to set asymmetric mode as the default mode will result in an error
if the system does not support it.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/linux-arm-kernel/20220127195712.748150-5-broonie@kernel.org/
Bug: 217221156
Change-Id: I9fef2f29e4afad61aa1a2f9ceee89d9e35af77e1
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 arch/arm64/include/asm/processor.h |  1 +
 arch/arm64/kernel/mte.c            | 12 +++++++++++-
 arch/arm64/kernel/process.c        |  5 ++++-
 include/uapi/linux/prctl.h         |  4 +++-
 4 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index c528fae6ea6b0..abeebb43b3fe5 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -24,6 +24,7 @@
 
 #define MTE_CTRL_TCF_SYNC		(1UL << 16)
 #define MTE_CTRL_TCF_ASYNC		(1UL << 17)
+#define MTE_CTRL_TCF_ASYMM		(1UL << 18)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index fa4001fee12a1..fb777d8fea328 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -215,7 +215,9 @@ static void mte_update_sctlr_user(struct task_struct *task)
 	 * set bits and map into register values determines our
 	 * default order.
 	 */
-	if (resolved_mte_tcf & MTE_CTRL_TCF_ASYNC)
+	if (resolved_mte_tcf & MTE_CTRL_TCF_ASYMM)
+		sctlr |= SCTLR_EL1_TCF0_ASYMM;
+	else if (resolved_mte_tcf & MTE_CTRL_TCF_ASYNC)
 		sctlr |= SCTLR_EL1_TCF0_ASYNC;
 	else if (resolved_mte_tcf & MTE_CTRL_TCF_SYNC)
 		sctlr |= SCTLR_EL1_TCF0_SYNC;
@@ -306,6 +308,8 @@ long set_mte_ctrl(struct task_struct *task, unsigned long arg)
 		mte_ctrl |= MTE_CTRL_TCF_ASYNC;
 	if (arg & PR_MTE_TCF_SYNC)
 		mte_ctrl |= MTE_CTRL_TCF_SYNC;
+	if (arg & PR_MTE_TCF_ASYMM)
+		mte_ctrl |= MTE_CTRL_TCF_ASYMM;
 
 	task->thread.mte_ctrl = mte_ctrl;
 	if (task == current) {
@@ -334,6 +338,8 @@ long get_mte_ctrl(struct task_struct *task)
 		ret |= PR_MTE_TCF_ASYNC;
 	if (mte_ctrl & MTE_CTRL_TCF_SYNC)
 		ret |= PR_MTE_TCF_SYNC;
+	if (mte_ctrl & MTE_CTRL_TCF_ASYMM)
+		ret |= PR_MTE_TCF_ASYMM;
 
 	return ret;
 }
@@ -481,6 +487,8 @@ static ssize_t mte_tcf_preferred_show(struct device *dev,
 		return sysfs_emit(buf, "async\n");
 	case MTE_CTRL_TCF_SYNC:
 		return sysfs_emit(buf, "sync\n");
+	case MTE_CTRL_TCF_ASYMM:
+		return sysfs_emit(buf, "asymm\n");
 	default:
 		return sysfs_emit(buf, "???\n");
 	}
@@ -496,6 +504,8 @@ static ssize_t mte_tcf_preferred_store(struct device *dev,
 		tcf = MTE_CTRL_TCF_ASYNC;
 	else if (sysfs_streq(buf, "sync"))
 		tcf = MTE_CTRL_TCF_SYNC;
+	else if (cpus_have_cap(ARM64_MTE_ASYMM) && sysfs_streq(buf, "asymm"))
+		tcf = MTE_CTRL_TCF_ASYMM;
 	else
 		return -EINVAL;
 
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index b59baa194adf8..49274aebcde52 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -680,7 +680,10 @@ long set_tagged_addr_ctrl(struct task_struct *task, unsigned long arg)
 		return -EINVAL;
 
 	if (system_supports_mte())
-		valid_mask |= PR_MTE_TCF_MASK | PR_MTE_TAG_MASK;
+		valid_mask |= PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC \
+			| PR_MTE_TAG_MASK;
+	if (cpus_have_cap(ARM64_MTE_ASYMM))
+		valid_mask |= PR_MTE_TCF_ASYMM;
 
 	if (arg & ~valid_mask)
 		return -EINVAL;
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 2f70791ff8e57..e1ff393ec8599 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -237,7 +237,9 @@ struct prctl_mm_map {
 # define PR_MTE_TCF_NONE		0
 # define PR_MTE_TCF_SYNC		(1UL << 1)
 # define PR_MTE_TCF_ASYNC		(1UL << 2)
-# define PR_MTE_TCF_MASK		(PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)
+# define PR_MTE_TCF_ASYMM		(1UL << 19)
+# define PR_MTE_TCF_MASK		(PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC | \
+					 PR_MTE_TCF_ASYMM)
 /* MTE tag inclusion mask */
 # define PR_MTE_TAG_SHIFT		3
 # define PR_MTE_TAG_MASK		(0xffffUL << PR_MTE_TAG_SHIFT)
-- 
GitLab


From 5e3f9957abaf59be0391089b4377e06edfd42a6c Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Mon, 7 Feb 2022 17:47:20 +0000
Subject: [PATCH 3985/4878] ANDROID: KVM: arm64: Don't repaint PSCI
 SYSTEM_RESET to SYSTEM_OFF

Even if PVMs can't be straightforwardly reset, we should still propagate
this information to the VMM.

Bug: 216801012
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I41833748da6744605ec3d68897a785305640ea2b
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 1 +
 arch/arm64/kvm/hyp/nvhe/pkvm.c     | 7 -------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 44d205ae734e6..67ed255b16991 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -290,6 +290,7 @@ static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *s
 
 	case PSCI_0_2_FN_CPU_OFF:
 	case PSCI_0_2_FN_SYSTEM_OFF:
+	case PSCI_0_2_FN_SYSTEM_RESET:
 	case PSCI_0_2_FN_CPU_SUSPEND:
 	case PSCI_0_2_FN64_CPU_SUSPEND:
 		n = 1;
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index e19af9e891f74..c431431d22afe 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -1017,13 +1017,6 @@ static bool pkvm_handle_psci(struct kvm_vcpu *vcpu)
 	case PSCI_1_0_FN_PSCI_FEATURES:
 		return pvm_psci_features(vcpu);
 	case PSCI_0_2_FN_SYSTEM_RESET:
-		/*
-		 * NOTE: Until we add proper support for reset for protected
-		 * VMs, repaint reset requests as system off because some VMMs
-		 * use reset when tearing down a VM.
-		 */
-		vcpu_set_reg(vcpu, 0, PSCI_0_2_FN_SYSTEM_OFF);
-		fallthrough;
 	case PSCI_0_2_FN_CPU_SUSPEND:
 	case PSCI_0_2_FN64_CPU_SUSPEND:
 	case PSCI_0_2_FN_SYSTEM_OFF:
-- 
GitLab


From 4a5e31b7219bd5055d4c0b9cf725e135edb4b329 Mon Sep 17 00:00:00 2001
From: Mikhail Golubev <Mikhail.Golubev@opensynergy.com>
Date: Fri, 18 Feb 2022 14:13:40 +0100
Subject: [PATCH 3986/4878] ANDROID: GKI: add VIDEOBUF2_DMA_SG under
 GKI_HIDDEN_MEDIA_CONFIGS

The virtio video driver v2 [1] uses videobuf2 structure
vb2_dma_sg_memops, when virtio device supports non-contiguous DMA video
buffers.

DMA SG memory allocator for videobuf2
(drivers/media/common/videobuf2/videobuf2-dma-sg.c) is a common code and
has no hardware dependencies.

[1]: https://lore.kernel.org/all/20200218202753.652093-2-dmitry.sepp@opensynergy.com/

Bug: 219998156
Signed-off-by: Mikhail Golubev <Mikhail.Golubev@opensynergy.com>
Change-Id: I897898090d7a97b13202c05aae28955595e09468
---
 init/Kconfig.gki | 1 +
 1 file changed, 1 insertion(+)

diff --git a/init/Kconfig.gki b/init/Kconfig.gki
index 1a4fde6a8e627..1a9aac1250152 100644
--- a/init/Kconfig.gki
+++ b/init/Kconfig.gki
@@ -96,6 +96,7 @@ config GKI_HIDDEN_MEDIA_CONFIGS
 	select CEC_NOTIFIER
 	select CEC_PIN
 	select VIDEOBUF2_DMA_CONTIG
+	select VIDEOBUF2_DMA_SG
 	help
 	  Dummy config option used to enable hidden media configs.
 	  These are normally selected implicitly when a module
-- 
GitLab


From ac0c5e2727a4c943ffe9c10c291e3ed64a080c5e Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 18 Feb 2022 19:09:42 +0000
Subject: [PATCH 3987/4878] ANDROID: gki_defconfig: Enable
 CONFIG_RANDOM_TRUST_CPU=y

Systems with a single early entropy source based on either CPU
instructions or a firmware interface are unable to initialise the crng
unless the CPU is "trusted". By default, the CPU is untrusted and so for
protected virtual machines this causes a significant boot delay as the
crng refuses to initialise solely from the TRNG hypercall:

  | [    0.000000][    T0] random: get_random_u64 called from kmem_cache_open+0x2c/0x390 with crng_init=0
  | ...
  | [    1.297022][  T211] EXT4-fs (dm-24): mounted filesystem without journal. Opts: (null)
  | [    3.362924][    C0] random: crng init done
  | [    3.363543][    C0] random: 7 urandom warning(s) missed due to ratelimiting

Since we trust the CPU and the firmware for many other things, such as
executing instructions and initialising the system, flip the default
around to trust CPU-backed entropy sources by default. This can be
disabled on the kernel command-line by passing "random.trust_cpu=off".

Bug: 220354122
Reported-by: Alan Stokes <alanstokes@google.com>
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ie09b6253936823814d7bfe5092923f0ec825403a
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 4e00698eb76e0..857bf01d19b74 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -396,6 +396,7 @@ CONFIG_HW_RANDOM=y
 # CONFIG_HW_RANDOM_CAVIUM is not set
 # CONFIG_DEVMEM is not set
 # CONFIG_DEVPORT is not set
+CONFIG_RANDOM_TRUST_CPU=y
 # CONFIG_I2C_COMPAT is not set
 # CONFIG_I2C_HELPER_AUTO is not set
 CONFIG_I3C=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index f2405d9489d53..5eb7990013e97 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -359,6 +359,7 @@ CONFIG_HW_RANDOM=y
 # CONFIG_DEVMEM is not set
 # CONFIG_DEVPORT is not set
 CONFIG_HPET=y
+CONFIG_RANDOM_TRUST_CPU=y
 # CONFIG_I2C_COMPAT is not set
 # CONFIG_I2C_HELPER_AUTO is not set
 CONFIG_I3C=y
-- 
GitLab


From 8ec7695ba93ea1e93bf444170b24d3e006953a73 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Mon, 21 Feb 2022 15:35:22 +0000
Subject: [PATCH 3988/4878] FROMLIST: KVM: arm64: Bump guest PSCI version to
 1.1

Expose PSCI version v1.1 to the guest by default. The only difference
for now is that an updated version number is reported by PSCI_VERSION.

Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220221153524.15397-2-will@kernel.org
Bug: 216801012
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0ca8201d7fa48ee4736745e0f7dce61e3234ad83
---
 arch/arm64/kvm/psci.c  | 12 +++++++++---
 include/kvm/arm_psci.h |  3 ++-
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 02a342721b125..22edb8d4c5244 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -277,16 +277,19 @@ out:
 	return ret;
 }
 
-static int kvm_psci_1_0_call(struct kvm_vcpu *vcpu)
+static int kvm_psci_1_x_call(struct kvm_vcpu *vcpu, u32 minor)
 {
 	u32 psci_fn = smccc_get_function(vcpu);
 	u32 feature;
 	unsigned long val;
 	int ret = 1;
 
+	if (minor > 1)
+		return -EINVAL;
+
 	switch(psci_fn) {
 	case PSCI_0_2_FN_PSCI_VERSION:
-		val = KVM_ARM_PSCI_1_0;
+		val = minor == 0 ? KVM_ARM_PSCI_1_0 : KVM_ARM_PSCI_1_1;
 		break;
 	case PSCI_1_0_FN_PSCI_FEATURES:
 		feature = smccc_get_arg1(vcpu);
@@ -365,8 +368,10 @@ static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
 int kvm_psci_call(struct kvm_vcpu *vcpu)
 {
 	switch (kvm_psci_version(vcpu, vcpu->kvm)) {
+	case KVM_ARM_PSCI_1_1:
+		return kvm_psci_1_x_call(vcpu, 1);
 	case KVM_ARM_PSCI_1_0:
-		return kvm_psci_1_0_call(vcpu);
+		return kvm_psci_1_x_call(vcpu, 0);
 	case KVM_ARM_PSCI_0_2:
 		return kvm_psci_0_2_call(vcpu);
 	case KVM_ARM_PSCI_0_1:
@@ -483,6 +488,7 @@ int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 			return 0;
 		case KVM_ARM_PSCI_0_2:
 		case KVM_ARM_PSCI_1_0:
+		case KVM_ARM_PSCI_1_1:
 			if (!wants_02)
 				return -EINVAL;
 			vcpu->kvm->arch.psci_version = val;
diff --git a/include/kvm/arm_psci.h b/include/kvm/arm_psci.h
index 5b58bd2fe088b..4a1003323a0c9 100644
--- a/include/kvm/arm_psci.h
+++ b/include/kvm/arm_psci.h
@@ -13,8 +13,9 @@
 #define KVM_ARM_PSCI_0_1	PSCI_VERSION(0, 1)
 #define KVM_ARM_PSCI_0_2	PSCI_VERSION(0, 2)
 #define KVM_ARM_PSCI_1_0	PSCI_VERSION(1, 0)
+#define KVM_ARM_PSCI_1_1	PSCI_VERSION(1, 1)
 
-#define KVM_ARM_PSCI_LATEST	KVM_ARM_PSCI_1_0
+#define KVM_ARM_PSCI_LATEST	KVM_ARM_PSCI_1_1
 
 /*
  * We need the KVM pointer independently from the vcpu as we can call
-- 
GitLab


From 0bfa3814f38a4526847f64d17e6d14260b1b51a9 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Mon, 21 Feb 2022 15:35:23 +0000
Subject: [PATCH 3989/4878] FROMLIST: KVM: arm64: Expose PSCI SYSTEM_RESET2
 call to the guest

PSCI v1.1 introduces the optional SYSTEM_RESET2 call, which allows the
caller to provide a vendor-specific "reset type" and "cookie" to request
a particular form of reset or shutdown.

Expose this call to the guest and handle it in the same way as PSCI
SYSTEM_RESET, along with some basic range checking on the type argument.

Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220221153524.15397-3-will@kernel.org
Bug: 216801012
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id1954c7c5274dda50e247c500ec03e87ca8a2028
---
 arch/arm64/kvm/psci.c     | 33 +++++++++++++++++++++++++++++----
 include/uapi/linux/psci.h |  4 ++++
 2 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 22edb8d4c5244..6de32ab98ad48 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -280,7 +280,7 @@ out:
 static int kvm_psci_1_x_call(struct kvm_vcpu *vcpu, u32 minor)
 {
 	u32 psci_fn = smccc_get_function(vcpu);
-	u32 feature;
+	u32 arg;
 	unsigned long val;
 	int ret = 1;
 
@@ -292,12 +292,12 @@ static int kvm_psci_1_x_call(struct kvm_vcpu *vcpu, u32 minor)
 		val = minor == 0 ? KVM_ARM_PSCI_1_0 : KVM_ARM_PSCI_1_1;
 		break;
 	case PSCI_1_0_FN_PSCI_FEATURES:
-		feature = smccc_get_arg1(vcpu);
-		val = kvm_psci_check_allowed_function(vcpu, feature);
+		arg = smccc_get_arg1(vcpu);
+		val = kvm_psci_check_allowed_function(vcpu, arg);
 		if (val)
 			break;
 
-		switch(feature) {
+		switch(arg) {
 		case PSCI_0_2_FN_PSCI_VERSION:
 		case PSCI_0_2_FN_CPU_SUSPEND:
 		case PSCI_0_2_FN64_CPU_SUSPEND:
@@ -313,11 +313,36 @@ static int kvm_psci_1_x_call(struct kvm_vcpu *vcpu, u32 minor)
 		case ARM_SMCCC_VERSION_FUNC_ID:
 			val = 0;
 			break;
+		case PSCI_1_1_FN_SYSTEM_RESET2:
+		case PSCI_1_1_FN64_SYSTEM_RESET2:
+			if (minor >= 1) {
+				val = 0;
+				break;
+			}
+			fallthrough;
 		default:
 			val = PSCI_RET_NOT_SUPPORTED;
 			break;
 		}
 		break;
+	case PSCI_1_1_FN_SYSTEM_RESET2:
+		kvm_psci_narrow_to_32bit(vcpu);
+		fallthrough;
+	case PSCI_1_1_FN64_SYSTEM_RESET2:
+		if (minor >= 1) {
+			arg = smccc_get_arg1(vcpu);
+
+			if (arg > PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET &&
+			    arg < PSCI_1_1_RESET_TYPE_VENDOR_START) {
+				val = PSCI_RET_INVALID_PARAMS;
+			} else {
+				kvm_psci_system_reset(vcpu);
+				val = PSCI_RET_INTERNAL_FAILURE;
+				ret = 0;
+			}
+			break;
+		};
+		fallthrough;
 	default:
 		return kvm_psci_0_2_call(vcpu);
 	}
diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h
index 2fcad1dd0b0e0..2bf93c0d6354b 100644
--- a/include/uapi/linux/psci.h
+++ b/include/uapi/linux/psci.h
@@ -82,6 +82,10 @@
 #define PSCI_0_2_TOS_UP_NO_MIGRATE		1
 #define PSCI_0_2_TOS_MP				2
 
+/* PSCI v1.1 reset type encoding for SYSTEM_RESET2 */
+#define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET	0
+#define PSCI_1_1_RESET_TYPE_VENDOR_START	0x80000000U
+
 /* PSCI version decoding (independent of PSCI version) */
 #define PSCI_VERSION_MAJOR_SHIFT		16
 #define PSCI_VERSION_MINOR_MASK			\
-- 
GitLab


From 390bf716d5503711c263fa01d7a1422bb9dc6e53 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Mon, 21 Feb 2022 15:35:24 +0000
Subject: [PATCH 3990/4878] FROMLIST: BACKPORT: KVM: arm64: Indicate
 SYSTEM_RESET2 in kvm_run::system_event flags field

When handling reset and power-off PSCI calls from the guest, we
initialise X0 to PSCI_RET_INTERNAL_FAILURE in case the VMM tries to
re-run the vCPU after issuing the call.

Unfortunately, this also means that the VMM cannot see which PSCI call
was issued and therefore cannot distinguish between PSCI SYSTEM_RESET
and SYSTEM_RESET2 calls, which is necessary in order to determine the
validity of the "reset_type" in X1.

Allocate bit 0 of the previously unused 'flags' field of the
system_event structure so that we can indicate the PSCI call used to
initiate the reset.

Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220221153524.15397-4-will@kernel.org
Bug: 216801012
[willdeacon@: Fix context conflict in uapi header with pKVM CAP]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Idcfb24d3f974d96b1ebbf860741e750e549ff6df
---
 Documentation/virt/kvm/api.rst    |  5 +++++
 arch/arm64/include/uapi/asm/kvm.h |  7 +++++++
 arch/arm64/kvm/psci.c             | 15 +++++++++++----
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index fa844120e7473..13a53dc40dce6 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -5227,6 +5227,11 @@ Valid values for 'type' are:
    to ignore the request, or to gather VM memory core dump and/or
    reset/shutdown of the VM.
 
+Valid flags are:
+
+ - KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2 (arm64 only) -- the guest issued
+   a SYSTEM_RESET2 call according to v1.1 of the PSCI specification.
+
 ::
 
 		/* KVM_EXIT_IOAPIC_EOI */
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index aebd2fa75f124..fa2b4119e18ab 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -413,6 +413,13 @@ struct kvm_arm_copy_mte_tags {
 #define KVM_PSCI_RET_INVAL		PSCI_RET_INVALID_PARAMS
 #define KVM_PSCI_RET_DENIED		PSCI_RET_DENIED
 
+/* arm64-specific kvm_run::system_event flags */
+/*
+ * Reset caused by a PSCI v1.1 SYSTEM_RESET2 call.
+ * Valid only when the system event has a type of KVM_SYSTEM_EVENT_RESET.
+ */
+#define KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2	(1ULL << 0)
+
 /* Protected KVM */
 #define KVM_CAP_ARM_PROTECTED_VM_FLAGS_SET_FW_IPA	0
 #define KVM_CAP_ARM_PROTECTED_VM_FLAGS_INFO		1
diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 6de32ab98ad48..27c6603420b1e 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -146,7 +146,7 @@ static unsigned long kvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu)
 	return PSCI_0_2_AFFINITY_LEVEL_OFF;
 }
 
-static void kvm_prepare_system_event(struct kvm_vcpu *vcpu, u32 type)
+static void kvm_prepare_system_event(struct kvm_vcpu *vcpu, u32 type, u64 flags)
 {
 	int i;
 	struct kvm_vcpu *tmp;
@@ -166,17 +166,24 @@ static void kvm_prepare_system_event(struct kvm_vcpu *vcpu, u32 type)
 
 	memset(&vcpu->run->system_event, 0, sizeof(vcpu->run->system_event));
 	vcpu->run->system_event.type = type;
+	vcpu->run->system_event.flags = flags;
 	vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT;
 }
 
 static void kvm_psci_system_off(struct kvm_vcpu *vcpu)
 {
-	kvm_prepare_system_event(vcpu, KVM_SYSTEM_EVENT_SHUTDOWN);
+	kvm_prepare_system_event(vcpu, KVM_SYSTEM_EVENT_SHUTDOWN, 0);
 }
 
 static void kvm_psci_system_reset(struct kvm_vcpu *vcpu)
 {
-	kvm_prepare_system_event(vcpu, KVM_SYSTEM_EVENT_RESET);
+	kvm_prepare_system_event(vcpu, KVM_SYSTEM_EVENT_RESET, 0);
+}
+
+static void kvm_psci_system_reset2(struct kvm_vcpu *vcpu)
+{
+	kvm_prepare_system_event(vcpu, KVM_SYSTEM_EVENT_RESET,
+				 KVM_SYSTEM_EVENT_RESET_FLAG_PSCI_RESET2);
 }
 
 static unsigned long kvm_psci_check_allowed_function(struct kvm_vcpu *vcpu, u32 fn)
@@ -336,7 +343,7 @@ static int kvm_psci_1_x_call(struct kvm_vcpu *vcpu, u32 minor)
 			    arg < PSCI_1_1_RESET_TYPE_VENDOR_START) {
 				val = PSCI_RET_INVALID_PARAMS;
 			} else {
-				kvm_psci_system_reset(vcpu);
+				kvm_psci_system_reset2(vcpu);
 				val = PSCI_RET_INTERNAL_FAILURE;
 				ret = 0;
 			}
-- 
GitLab


From a3f2c603382a3ed6e947e0a711a6de1e74dfebef Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Wed, 9 Feb 2022 16:15:58 +0000
Subject: [PATCH 3991/4878] ANDROID: KVM: arm64: Forward PSCI SYSTEM_RESET2
 calls back to the host

Handle PSCI SYSTEM_RESET2 similarly to SYSTEM_RESET by advertising PSCI
v1.1 and forwarding the new reset request back to the host along with
its argument register.

Bug: 216801012
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ic9ff1cc6dbbcbc969e2863a9f07eab8e5b264266
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 2 ++
 arch/arm64/kvm/hyp/nvhe/pkvm.c     | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 67ed255b16991..389633aad01d1 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -302,6 +302,8 @@ static void handle_pvm_exit_hvc64(struct kvm_vcpu *host_vcpu, struct kvm_vcpu *s
 		n = 4;
 		break;
 
+	case PSCI_1_1_FN_SYSTEM_RESET2:
+	case PSCI_1_1_FN64_SYSTEM_RESET2:
 	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID:
 		n = 3;
 		break;
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index c431431d22afe..09dc651647fb4 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -954,7 +954,7 @@ static bool pvm_psci_vcpu_off(struct kvm_vcpu *vcpu)
 static bool pvm_psci_version(struct kvm_vcpu *vcpu)
 {
 	/* Nothing to be handled by the host. Go back to the guest. */
-	smccc_set_retval(vcpu, KVM_ARM_PSCI_1_0, 0, 0, 0);
+	smccc_set_retval(vcpu, KVM_ARM_PSCI_1_1, 0, 0, 0);
 	return true;
 }
 
@@ -982,6 +982,8 @@ static bool pvm_psci_features(struct kvm_vcpu *vcpu)
 	case PSCI_0_2_FN_SYSTEM_OFF:
 	case PSCI_0_2_FN_SYSTEM_RESET:
 	case PSCI_1_0_FN_PSCI_FEATURES:
+	case PSCI_1_1_FN_SYSTEM_RESET2:
+	case PSCI_1_1_FN64_SYSTEM_RESET2:
 	case ARM_SMCCC_VERSION_FUNC_ID:
 		val = PSCI_RET_SUCCESS;
 		break;
@@ -1020,6 +1022,8 @@ static bool pkvm_handle_psci(struct kvm_vcpu *vcpu)
 	case PSCI_0_2_FN_CPU_SUSPEND:
 	case PSCI_0_2_FN64_CPU_SUSPEND:
 	case PSCI_0_2_FN_SYSTEM_OFF:
+	case PSCI_1_1_FN_SYSTEM_RESET2:
+	case PSCI_1_1_FN64_SYSTEM_RESET2:
 		return false; /* Handled by the host. */
 	default:
 		break;
-- 
GitLab


From fdc8e1c2bc30f8ea3bb51e7ca70c198357726655 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 3 Feb 2022 09:24:45 +0000
Subject: [PATCH 3992/4878] UPSTREAM: KVM: arm64: vgic: Read HW interrupt
 pending state from the HW

It appears that a read access to GIC[DR]_I[CS]PENDRn doesn't always
result in the pending interrupts being accurately reported if they are
mapped to a HW interrupt. This is particularily visible when acking
the timer interrupt and reading the GICR_ISPENDR1 register immediately
after, for example (the interrupt appears as not-pending while it really
is...).

This is because a HW interrupt has its 'active and pending state' kept
in the *physical* distributor, and not in the virtual one, as mandated
by the spec (this is what allows the direct deactivation). The virtual
distributor only caries the pending and active *states* (note the
plural, as these are two independent and non-overlapping states).

Fix it by reading the HW state back, either from the timer itself or
from the distributor if necessary.

Reported-by: Ricardo Koller <ricarkol@google.com>
Tested-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220208123726.3604198-1-maz@kernel.org
Bug: 209777660
(cherry picked from commit 5bfa685e62e9ba93c303a9a8db646c7228b9b570)
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I974ce5801420bf5d27ac2aad0e93cd31437cc5b7
---
 arch/arm64/kvm/vgic/vgic-mmio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index 7068da080799c..49837d3a3ef56 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c
@@ -248,6 +248,8 @@ unsigned long vgic_mmio_read_pending(struct kvm_vcpu *vcpu,
 						    IRQCHIP_STATE_PENDING,
 						    &val);
 			WARN_RATELIMIT(err, "IRQ %d", irq->host_irq);
+		} else if (vgic_irq_is_mapped_level(irq)) {
+			val = vgic_get_phys_line_level(irq);
 		} else {
 			val = irq_is_pending(irq);
 		}
-- 
GitLab


From 13ed911af8dbd27d13e42f77cf1b3f33492a1f04 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Wed, 9 Feb 2022 17:15:01 +0000
Subject: [PATCH 3993/4878] ANDROID: KVM: arm64: Don't expose TLBI hypercalls
 after de-privilege

Now that TLBI invalidation is handled entirely at EL2 for both protected
and non-protected guests when protected KVM has initialised, unplug the
unused TLBI hypercalls.

Bug: 220815716
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id3e341325237c606c3997cf1626bf092b761b604
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 389633aad01d1..1086ff2e42454 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -987,6 +987,10 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__kvm_enable_ssbs),
 	HANDLE_FUNC(__vgic_v3_init_lrs),
 	HANDLE_FUNC(__vgic_v3_get_gic_config),
+	HANDLE_FUNC(__kvm_flush_vm_context),
+	HANDLE_FUNC(__kvm_tlb_flush_vmid_ipa),
+	HANDLE_FUNC(__kvm_tlb_flush_vmid),
+	HANDLE_FUNC(__kvm_flush_cpu_context),
 	HANDLE_FUNC(__pkvm_prot_finalize),
 
 	HANDLE_FUNC(__pkvm_host_share_hyp),
@@ -995,10 +999,6 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_host_donate_guest),
 	HANDLE_FUNC(__kvm_adjust_pc),
 	HANDLE_FUNC(__kvm_vcpu_run),
-	HANDLE_FUNC(__kvm_flush_vm_context),
-	HANDLE_FUNC(__kvm_tlb_flush_vmid_ipa),
-	HANDLE_FUNC(__kvm_tlb_flush_vmid),
-	HANDLE_FUNC(__kvm_flush_cpu_context),
 	HANDLE_FUNC(__kvm_timer_set_cntvoff),
 	HANDLE_FUNC(__vgic_v3_save_vmcr_aprs),
 	HANDLE_FUNC(__vgic_v3_restore_vmcr_aprs),
-- 
GitLab


From 52b06a66387d0031526f4663590b12a445891c51 Mon Sep 17 00:00:00 2001
From: Robin Peng <robinpeng@google.com>
Date: Tue, 22 Feb 2022 21:57:38 +0800
Subject: [PATCH 3994/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 211546634
Signed-off-by: Robin Peng <robinpeng@google.com>
Change-Id: I631d52d85d0833f0b68f860f718ffd2007f85ac5
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index b63bd77949bb9..418ba2bac4577 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2442,6 +2442,7 @@
   vb2_common_vm_ops
   vb2_create_framevec
   vb2_destroy_framevec
+  vb2_dma_sg_memops
   vb2_dqbuf
   vb2_fop_mmap
   vb2_fop_poll
-- 
GitLab


From d0f4aa2d978f3cc978d116f2ecae7e824c4c264e Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Thu, 25 Feb 2021 14:54:59 +1000
Subject: [PATCH 3995/4878] drm/nouveau/pmu/gm200-: use alternate falcon reset
 sequence

commit 4cdd2450bf739bada353e82d27b00db9af8c3001 upstream.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/merge_requests/10
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nvkm/falcon/base.c    |  8 +++--
 .../gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c   | 31 ++++++++++++++++++-
 .../gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c   |  2 +-
 .../gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c   |  2 +-
 .../gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c   |  2 +-
 .../gpu/drm/nouveau/nvkm/subdev/pmu/priv.h    |  2 ++
 6 files changed, 41 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/base.c b/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
index c6a3448180d6f..93d9575181c67 100644
--- a/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/falcon/base.c
@@ -119,8 +119,12 @@ nvkm_falcon_disable(struct nvkm_falcon *falcon)
 int
 nvkm_falcon_reset(struct nvkm_falcon *falcon)
 {
-	nvkm_falcon_disable(falcon);
-	return nvkm_falcon_enable(falcon);
+	if (!falcon->func->reset) {
+		nvkm_falcon_disable(falcon);
+		return nvkm_falcon_enable(falcon);
+	}
+
+	return falcon->func->reset(falcon);
 }
 
 int
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
index 383376addb41c..a9d6c36195ed1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm200.c
@@ -23,9 +23,38 @@
  */
 #include "priv.h"
 
+static int
+gm200_pmu_flcn_reset(struct nvkm_falcon *falcon)
+{
+	struct nvkm_pmu *pmu = container_of(falcon, typeof(*pmu), falcon);
+
+	nvkm_falcon_wr32(falcon, 0x014, 0x0000ffff);
+	pmu->func->reset(pmu);
+	return nvkm_falcon_enable(falcon);
+}
+
+const struct nvkm_falcon_func
+gm200_pmu_flcn = {
+	.debug = 0xc08,
+	.fbif = 0xe00,
+	.load_imem = nvkm_falcon_v1_load_imem,
+	.load_dmem = nvkm_falcon_v1_load_dmem,
+	.read_dmem = nvkm_falcon_v1_read_dmem,
+	.bind_context = nvkm_falcon_v1_bind_context,
+	.wait_for_halt = nvkm_falcon_v1_wait_for_halt,
+	.clear_interrupt = nvkm_falcon_v1_clear_interrupt,
+	.set_start_addr = nvkm_falcon_v1_set_start_addr,
+	.start = nvkm_falcon_v1_start,
+	.enable = nvkm_falcon_v1_enable,
+	.disable = nvkm_falcon_v1_disable,
+	.reset = gm200_pmu_flcn_reset,
+	.cmdq = { 0x4a0, 0x4b0, 4 },
+	.msgq = { 0x4c8, 0x4cc, 0 },
+};
+
 static const struct nvkm_pmu_func
 gm200_pmu = {
-	.flcn = &gt215_pmu_flcn,
+	.flcn = &gm200_pmu_flcn,
 	.enabled = gf100_pmu_enabled,
 	.reset = gf100_pmu_reset,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
index 8f6ed5373ea16..7938722b4da17 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gm20b.c
@@ -211,7 +211,7 @@ gm20b_pmu_recv(struct nvkm_pmu *pmu)
 
 static const struct nvkm_pmu_func
 gm20b_pmu = {
-	.flcn = &gt215_pmu_flcn,
+	.flcn = &gm200_pmu_flcn,
 	.enabled = gf100_pmu_enabled,
 	.intr = gt215_pmu_intr,
 	.recv = gm20b_pmu_recv,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
index 3d8ce14dba7bf..3dfb3e8522f6a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp102.c
@@ -39,7 +39,7 @@ gp102_pmu_enabled(struct nvkm_pmu *pmu)
 
 static const struct nvkm_pmu_func
 gp102_pmu = {
-	.flcn = &gt215_pmu_flcn,
+	.flcn = &gm200_pmu_flcn,
 	.enabled = gp102_pmu_enabled,
 	.reset = gp102_pmu_reset,
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
index 9c237c426599b..7f5f9d5448360 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/gp10b.c
@@ -78,7 +78,7 @@ gp10b_pmu_acr = {
 
 static const struct nvkm_pmu_func
 gp10b_pmu = {
-	.flcn = &gt215_pmu_flcn,
+	.flcn = &gm200_pmu_flcn,
 	.enabled = gf100_pmu_enabled,
 	.intr = gt215_pmu_intr,
 	.recv = gm20b_pmu_recv,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
index 276b6d778e532..b945ec320cd2e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
@@ -44,6 +44,8 @@ void gf100_pmu_reset(struct nvkm_pmu *);
 
 void gk110_pmu_pgob(struct nvkm_pmu *, bool);
 
+extern const struct nvkm_falcon_func gm200_pmu_flcn;
+
 void gm20b_pmu_acr_bld_patch(struct nvkm_acr *, u32, s64);
 void gm20b_pmu_acr_bld_write(struct nvkm_acr *, u32, struct nvkm_acr_lsfw *);
 int gm20b_pmu_acr_boot(struct nvkm_falcon *);
-- 
GitLab


From 8c8385972ea96adeb9b678c9390beaa4d94c4aae Mon Sep 17 00:00:00 2001
From: Roman Gushchin <guro@fb.com>
Date: Fri, 11 Feb 2022 16:32:32 -0800
Subject: [PATCH 3996/4878] mm: memcg: synchronize objcg lists with a dedicated
 spinlock

commit 0764db9b49c932b89ee4d9e3236dff4bb07b4a66 upstream.

Alexander reported a circular lock dependency revealed by the mmap1 ltp
test:

  LOCKDEP_CIRCULAR (suite: ltp, case: mtest06 (mmap1))
          WARNING: possible circular locking dependency detected
          5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1 Not tainted
          ------------------------------------------------------
          mmap1/202299 is trying to acquire lock:
          00000001892c0188 (css_set_lock){..-.}-{2:2}, at: obj_cgroup_release+0x4a/0xe0
          but task is already holding lock:
          00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
          which lock already depends on the new lock.
          the existing dependency chain (in reverse order) is:
          -> #1 (&sighand->siglock){-.-.}-{2:2}:
                 __lock_acquire+0x604/0xbd8
                 lock_acquire.part.0+0xe2/0x238
                 lock_acquire+0xb0/0x200
                 _raw_spin_lock_irqsave+0x6a/0xd8
                 __lock_task_sighand+0x90/0x190
                 cgroup_freeze_task+0x2e/0x90
                 cgroup_migrate_execute+0x11c/0x608
                 cgroup_update_dfl_csses+0x246/0x270
                 cgroup_subtree_control_write+0x238/0x518
                 kernfs_fop_write_iter+0x13e/0x1e0
                 new_sync_write+0x100/0x190
                 vfs_write+0x22c/0x2d8
                 ksys_write+0x6c/0xf8
                 __do_syscall+0x1da/0x208
                 system_call+0x82/0xb0
          -> #0 (css_set_lock){..-.}-{2:2}:
                 check_prev_add+0xe0/0xed8
                 validate_chain+0x736/0xb20
                 __lock_acquire+0x604/0xbd8
                 lock_acquire.part.0+0xe2/0x238
                 lock_acquire+0xb0/0x200
                 _raw_spin_lock_irqsave+0x6a/0xd8
                 obj_cgroup_release+0x4a/0xe0
                 percpu_ref_put_many.constprop.0+0x150/0x168
                 drain_obj_stock+0x94/0xe8
                 refill_obj_stock+0x94/0x278
                 obj_cgroup_charge+0x164/0x1d8
                 kmem_cache_alloc+0xac/0x528
                 __sigqueue_alloc+0x150/0x308
                 __send_signal+0x260/0x550
                 send_signal+0x7e/0x348
                 force_sig_info_to_task+0x104/0x180
                 force_sig_fault+0x48/0x58
                 __do_pgm_check+0x120/0x1f0
                 pgm_check_handler+0x11e/0x180
          other info that might help us debug this:
           Possible unsafe locking scenario:
                 CPU0                    CPU1
                 ----                    ----
            lock(&sighand->siglock);
                                         lock(css_set_lock);
                                         lock(&sighand->siglock);
            lock(css_set_lock);
           *** DEADLOCK ***
          2 locks held by mmap1/202299:
           #0: 00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
           #1: 00000001892ad560 (rcu_read_lock){....}-{1:2}, at: percpu_ref_put_many.constprop.0+0x0/0x168
          stack backtrace:
          CPU: 15 PID: 202299 Comm: mmap1 Not tainted 5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1
          Hardware name: IBM 3906 M04 704 (LPAR)
          Call Trace:
            dump_stack_lvl+0x76/0x98
            check_noncircular+0x136/0x158
            check_prev_add+0xe0/0xed8
            validate_chain+0x736/0xb20
            __lock_acquire+0x604/0xbd8
            lock_acquire.part.0+0xe2/0x238
            lock_acquire+0xb0/0x200
            _raw_spin_lock_irqsave+0x6a/0xd8
            obj_cgroup_release+0x4a/0xe0
            percpu_ref_put_many.constprop.0+0x150/0x168
            drain_obj_stock+0x94/0xe8
            refill_obj_stock+0x94/0x278
            obj_cgroup_charge+0x164/0x1d8
            kmem_cache_alloc+0xac/0x528
            __sigqueue_alloc+0x150/0x308
            __send_signal+0x260/0x550
            send_signal+0x7e/0x348
            force_sig_info_to_task+0x104/0x180
            force_sig_fault+0x48/0x58
            __do_pgm_check+0x120/0x1f0
            pgm_check_handler+0x11e/0x180
          INFO: lockdep is turned off.

In this example a slab allocation from __send_signal() caused a
refilling and draining of a percpu objcg stock, resulted in a releasing
of another non-related objcg.  Objcg release path requires taking the
css_set_lock, which is used to synchronize objcg lists.

This can create a circular dependency with the sighandler lock, which is
taken with the locked css_set_lock by the freezer code (to freeze a
task).

In general it seems that using css_set_lock to synchronize objcg lists
makes any slab allocations and deallocation with the locked css_set_lock
and any intervened locks risky.

To fix the problem and make the code more robust let's stop using
css_set_lock to synchronize objcg lists and use a new dedicated spinlock
instead.

Link: https://lkml.kernel.org/r/Yfm1IHmoGdyUR81T@carbon.dhcp.thefacebook.com
Fixes: bf4f059954dc ("mm: memcg/slab: obj_cgroup API")
Signed-off-by: Roman Gushchin <guro@fb.com>
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/memcontrol.h |  5 +++--
 mm/memcontrol.c            | 10 +++++-----
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 4b975111b5361..1f467fb620fe1 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -197,7 +197,7 @@ struct obj_cgroup {
 	struct mem_cgroup *memcg;
 	atomic_t nr_charged_bytes;
 	union {
-		struct list_head list;
+		struct list_head list; /* protected by objcg_lock */
 		struct rcu_head rcu;
 	};
 };
@@ -300,7 +300,8 @@ struct mem_cgroup {
 	int kmemcg_id;
 	enum memcg_kmem_state kmem_state;
 	struct obj_cgroup __rcu *objcg;
-	struct list_head objcg_list; /* list of inherited objcgs */
+	/* list of inherited objcgs, protected by objcg_lock */
+	struct list_head objcg_list;
 #endif
 
 	MEMCG_PADDING(_pad2_);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 4bb2a4c593f73..dbe07fef26828 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -250,7 +250,7 @@ struct cgroup_subsys_state *vmpressure_to_css(struct vmpressure *vmpr)
 }
 
 #ifdef CONFIG_MEMCG_KMEM
-extern spinlock_t css_set_lock;
+static DEFINE_SPINLOCK(objcg_lock);
 
 static void obj_cgroup_release(struct percpu_ref *ref)
 {
@@ -284,13 +284,13 @@ static void obj_cgroup_release(struct percpu_ref *ref)
 	WARN_ON_ONCE(nr_bytes & (PAGE_SIZE - 1));
 	nr_pages = nr_bytes >> PAGE_SHIFT;
 
-	spin_lock_irqsave(&css_set_lock, flags);
+	spin_lock_irqsave(&objcg_lock, flags);
 	memcg = obj_cgroup_memcg(objcg);
 	if (nr_pages)
 		__memcg_kmem_uncharge(memcg, nr_pages);
 	list_del(&objcg->list);
 	mem_cgroup_put(memcg);
-	spin_unlock_irqrestore(&css_set_lock, flags);
+	spin_unlock_irqrestore(&objcg_lock, flags);
 
 	percpu_ref_exit(ref);
 	kfree_rcu(objcg, rcu);
@@ -322,7 +322,7 @@ static void memcg_reparent_objcgs(struct mem_cgroup *memcg,
 
 	objcg = rcu_replace_pointer(memcg->objcg, NULL, true);
 
-	spin_lock_irq(&css_set_lock);
+	spin_lock_irq(&objcg_lock);
 
 	/* Move active objcg to the parent's list */
 	xchg(&objcg->memcg, parent);
@@ -337,7 +337,7 @@ static void memcg_reparent_objcgs(struct mem_cgroup *memcg,
 	}
 	list_splice(&memcg->objcg_list, &parent->objcg_list);
 
-	spin_unlock_irq(&css_set_lock);
+	spin_unlock_irq(&objcg_lock);
 
 	percpu_ref_kill(&objcg->refcnt);
 }
-- 
GitLab


From 657991fb06a4a1e423d1e9e82514dd35b8caccd8 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@kernel.org>
Date: Fri, 30 Oct 2020 13:11:24 -0700
Subject: [PATCH 3997/4878] rcu: Do not report strict GPs for outgoing CPUs

commit bfb3aa735f82c8d98b32a669934ee7d6b346264d upstream.

An outgoing CPU is marked offline in a stop-machine handler and most
of that CPU's services stop at that point, including IRQ work queues.
However, that CPU must take another pass through the scheduler and through
a number of CPU-hotplug notifiers, many of which contain RCU readers.
In the past, these readers were not a problem because the outgoing CPU
has interrupts disabled, so that rcu_read_unlock_special() would not
be invoked, and thus RCU would never attempt to queue IRQ work on the
outgoing CPU.

This changed with the advent of the CONFIG_RCU_STRICT_GRACE_PERIOD
Kconfig option, in which rcu_read_unlock_special() is invoked upon exit
from almost all RCU read-side critical sections.  Worse yet, because
interrupts are disabled, rcu_read_unlock_special() cannot immediately
report a quiescent state and will therefore attempt to defer this
reporting, for example, by queueing IRQ work.  Which fails with a splat
because the CPU is already marked as being offline.

But it turns out that there is no need to report this quiescent state
because rcu_report_dead() will do this job shortly after the outgoing
CPU makes its final dive into the idle loop.  This commit therefore
makes rcu_read_unlock_special() refrain from queuing IRQ work onto
outgoing CPUs.

Fixes: 44bad5b3cca2 ("rcu: Do full report for .need_qs for strict GPs")
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/rcu/tree_plugin.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 6ed153f226b39..244f32e98360f 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -628,7 +628,7 @@ static void rcu_read_unlock_special(struct task_struct *t)
 			set_tsk_need_resched(current);
 			set_preempt_need_resched();
 			if (IS_ENABLED(CONFIG_IRQ_WORK) && irqs_were_disabled &&
-			    !rdp->defer_qs_iw_pending && exp) {
+			    !rdp->defer_qs_iw_pending && exp && cpu_online(rdp->cpu)) {
 				// Get scheduler to re-evaluate and call hooks.
 				// If !IRQ_WORK, FQS scan will eventually IPI.
 				init_irq_work(&rdp->defer_qs_iw,
-- 
GitLab


From 0849f83e4782c44969d12283995b8fcd4df0af20 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 10 Dec 2021 14:00:15 -0800
Subject: [PATCH 3998/4878] fget: clarify and improve __fget_files()
 implementation

commit e386dfc56f837da66d00a078e5314bc8382fab83 upstream.

Commit 054aa8d439b9 ("fget: check that the fd still exists after getting
a ref to it") fixed a race with getting a reference to a file just as it
was being closed.  It was a fairly minimal patch, and I didn't think
re-checking the file pointer lookup would be a measurable overhead,
since it was all right there and cached.

But I was wrong, as pointed out by the kernel test robot.

The 'poll2' case of the will-it-scale.per_thread_ops benchmark regressed
quite noticeably.  Admittedly it seems to be a very artificial test:
doing "poll()" system calls on regular files in a very tight loop in
multiple threads.

That means that basically all the time is spent just looking up file
descriptors without ever doing anything useful with them (not that doing
'poll()' on a regular file is useful to begin with).  And as a result it
shows the extra "re-check fd" cost as a sore thumb.

Happily, the regression is fixable by just writing the code to loook up
the fd to be better and clearer.  There's still a cost to verify the
file pointer, but now it's basically in the noise even for that
benchmark that does nothing else - and the code is more understandable
and has better comments too.

[ Side note: this patch is also a classic case of one that looks very
  messy with the default greedy Myers diff - it's much more legible with
  either the patience of histogram diff algorithm ]

Link: https://lore.kernel.org/lkml/20211210053743.GA36420@xsang-OptiPlex-9020/
Link: https://lore.kernel.org/lkml/20211213083154.GA20853@linux.intel.com/
Reported-by: kernel test robot <oliver.sang@intel.com>
Tested-by: Carel Si <beibei.si@intel.com>
Cc: Jann Horn <jannh@google.com>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/file.c | 72 ++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 56 insertions(+), 16 deletions(-)

diff --git a/fs/file.c b/fs/file.c
index 9d02352fa18c3..79a76d04c7c33 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -817,28 +817,68 @@ void do_close_on_exec(struct files_struct *files)
 	spin_unlock(&files->file_lock);
 }
 
-static struct file *__fget_files(struct files_struct *files, unsigned int fd,
-				 fmode_t mask, unsigned int refs)
+static inline struct file *__fget_files_rcu(struct files_struct *files,
+	unsigned int fd, fmode_t mask, unsigned int refs)
 {
-	struct file *file;
+	for (;;) {
+		struct file *file;
+		struct fdtable *fdt = rcu_dereference_raw(files->fdt);
+		struct file __rcu **fdentry;
 
-	rcu_read_lock();
-loop:
-	file = fcheck_files(files, fd);
-	if (file) {
-		/* File object ref couldn't be taken.
-		 * dup2() atomicity guarantee is the reason
-		 * we loop to catch the new file (or NULL pointer)
+		if (unlikely(fd >= fdt->max_fds))
+			return NULL;
+
+		fdentry = fdt->fd + array_index_nospec(fd, fdt->max_fds);
+		file = rcu_dereference_raw(*fdentry);
+		if (unlikely(!file))
+			return NULL;
+
+		if (unlikely(file->f_mode & mask))
+			return NULL;
+
+		/*
+		 * Ok, we have a file pointer. However, because we do
+		 * this all locklessly under RCU, we may be racing with
+		 * that file being closed.
+		 *
+		 * Such a race can take two forms:
+		 *
+		 *  (a) the file ref already went down to zero,
+		 *      and get_file_rcu_many() fails. Just try
+		 *      again:
 		 */
-		if (file->f_mode & mask)
-			file = NULL;
-		else if (!get_file_rcu_many(file, refs))
-			goto loop;
-		else if (__fcheck_files(files, fd) != file) {
+		if (unlikely(!get_file_rcu_many(file, refs)))
+			continue;
+
+		/*
+		 *  (b) the file table entry has changed under us.
+		 *       Note that we don't need to re-check the 'fdt->fd'
+		 *       pointer having changed, because it always goes
+		 *       hand-in-hand with 'fdt'.
+		 *
+		 * If so, we need to put our refs and try again.
+		 */
+		if (unlikely(rcu_dereference_raw(files->fdt) != fdt) ||
+		    unlikely(rcu_dereference_raw(*fdentry) != file)) {
 			fput_many(file, refs);
-			goto loop;
+			continue;
 		}
+
+		/*
+		 * Ok, we have a ref to the file, and checked that it
+		 * still exists.
+		 */
+		return file;
 	}
+}
+
+static struct file *__fget_files(struct files_struct *files, unsigned int fd,
+				 fmode_t mask, unsigned int refs)
+{
+	struct file *file;
+
+	rcu_read_lock();
+	file = __fget_files_rcu(files, fd, mask, refs);
 	rcu_read_unlock();
 
 	return file;
-- 
GitLab


From db3f3636e4aed2cba3e4e7897a053323f7a62249 Mon Sep 17 00:00:00 2001
From: Yang Shi <shy828301@gmail.com>
Date: Fri, 11 Feb 2022 16:32:26 -0800
Subject: [PATCH 3999/4878] fs/proc: task_mmu.c: don't read mapcount for
 migration entry

commit 24d7275ce2791829953ed4e72f68277ceb2571c6 upstream.

The syzbot reported the below BUG:

  kernel BUG at include/linux/page-flags.h:785!
  invalid opcode: 0000 [#1] PREEMPT SMP KASAN
  CPU: 1 PID: 4392 Comm: syz-executor560 Not tainted 5.16.0-rc6-syzkaller #0
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  RIP: 0010:PageDoubleMap include/linux/page-flags.h:785 [inline]
  RIP: 0010:__page_mapcount+0x2d2/0x350 mm/util.c:744
  Call Trace:
    page_mapcount include/linux/mm.h:837 [inline]
    smaps_account+0x470/0xb10 fs/proc/task_mmu.c:466
    smaps_pte_entry fs/proc/task_mmu.c:538 [inline]
    smaps_pte_range+0x611/0x1250 fs/proc/task_mmu.c:601
    walk_pmd_range mm/pagewalk.c:128 [inline]
    walk_pud_range mm/pagewalk.c:205 [inline]
    walk_p4d_range mm/pagewalk.c:240 [inline]
    walk_pgd_range mm/pagewalk.c:277 [inline]
    __walk_page_range+0xe23/0x1ea0 mm/pagewalk.c:379
    walk_page_vma+0x277/0x350 mm/pagewalk.c:530
    smap_gather_stats.part.0+0x148/0x260 fs/proc/task_mmu.c:768
    smap_gather_stats fs/proc/task_mmu.c:741 [inline]
    show_smap+0xc6/0x440 fs/proc/task_mmu.c:822
    seq_read_iter+0xbb0/0x1240 fs/seq_file.c:272
    seq_read+0x3e0/0x5b0 fs/seq_file.c:162
    vfs_read+0x1b5/0x600 fs/read_write.c:479
    ksys_read+0x12d/0x250 fs/read_write.c:619
    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    entry_SYSCALL_64_after_hwframe+0x44/0xae

The reproducer was trying to read /proc/$PID/smaps when calling
MADV_FREE at the mean time.  MADV_FREE may split THPs if it is called
for partial THP.  It may trigger the below race:

           CPU A                         CPU B
           -----                         -----
  smaps walk:                      MADV_FREE:
  page_mapcount()
    PageCompound()
                                   split_huge_page()
    page = compound_head(page)
    PageDoubleMap(page)

When calling PageDoubleMap() this page is not a tail page of THP anymore
so the BUG is triggered.

This could be fixed by elevated refcount of the page before calling
mapcount, but that would prevent it from counting migration entries, and
it seems overkilling because the race just could happen when PMD is
split so all PTE entries of tail pages are actually migration entries,
and smaps_account() does treat migration entries as mapcount == 1 as
Kirill pointed out.

Add a new parameter for smaps_account() to tell this entry is migration
entry then skip calling page_mapcount().  Don't skip getting mapcount
for device private entries since they do track references with mapcount.

Pagemap also has the similar issue although it was not reported.  Fixed
it as well.

[shy828301@gmail.com: v4]
  Link: https://lkml.kernel.org/r/20220203182641.824731-1-shy828301@gmail.com
[nathan@kernel.org: avoid unused variable warning in pagemap_pmd_range()]
  Link: https://lkml.kernel.org/r/20220207171049.1102239-1-nathan@kernel.org
Link: https://lkml.kernel.org/r/20220120202805.3369-1-shy828301@gmail.com
Fixes: e9b61f19858a ("thp: reintroduce split_huge_page()")
Signed-off-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: syzbot+1f52b3a18d5633fa7f82@syzkaller.appspotmail.com
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Jann Horn <jannh@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/proc/task_mmu.c | 43 ++++++++++++++++++++++++++++++++-----------
 1 file changed, 32 insertions(+), 11 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 3931f60e421f7..ba98371e9d164 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -430,7 +430,8 @@ static void smaps_page_accumulate(struct mem_size_stats *mss,
 }
 
 static void smaps_account(struct mem_size_stats *mss, struct page *page,
-		bool compound, bool young, bool dirty, bool locked)
+		bool compound, bool young, bool dirty, bool locked,
+		bool migration)
 {
 	int i, nr = compound ? compound_nr(page) : 1;
 	unsigned long size = nr * PAGE_SIZE;
@@ -457,8 +458,15 @@ static void smaps_account(struct mem_size_stats *mss, struct page *page,
 	 * page_count(page) == 1 guarantees the page is mapped exactly once.
 	 * If any subpage of the compound page mapped with PTE it would elevate
 	 * page_count().
+	 *
+	 * The page_mapcount() is called to get a snapshot of the mapcount.
+	 * Without holding the page lock this snapshot can be slightly wrong as
+	 * we cannot always read the mapcount atomically.  It is not safe to
+	 * call page_mapcount() even with PTL held if the page is not mapped,
+	 * especially for migration entries.  Treat regular migration entries
+	 * as mapcount == 1.
 	 */
-	if (page_count(page) == 1) {
+	if ((page_count(page) == 1) || migration) {
 		smaps_page_accumulate(mss, page, size, size << PSS_SHIFT, dirty,
 			locked, true);
 		return;
@@ -495,6 +503,7 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr,
 	struct vm_area_struct *vma = walk->vma;
 	bool locked = !!(vma->vm_flags & VM_LOCKED);
 	struct page *page = NULL;
+	bool migration = false;
 
 	if (pte_present(*pte)) {
 		page = vm_normal_page(vma, addr, *pte);
@@ -514,9 +523,10 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr,
 			} else {
 				mss->swap_pss += (u64)PAGE_SIZE << PSS_SHIFT;
 			}
-		} else if (is_migration_entry(swpent))
+		} else if (is_migration_entry(swpent)) {
+			migration = true;
 			page = migration_entry_to_page(swpent);
-		else if (is_device_private_entry(swpent))
+		} else if (is_device_private_entry(swpent))
 			page = device_private_entry_to_page(swpent);
 	} else if (unlikely(IS_ENABLED(CONFIG_SHMEM) && mss->check_shmem_swap
 							&& pte_none(*pte))) {
@@ -530,7 +540,8 @@ static void smaps_pte_entry(pte_t *pte, unsigned long addr,
 	if (!page)
 		return;
 
-	smaps_account(mss, page, false, pte_young(*pte), pte_dirty(*pte), locked);
+	smaps_account(mss, page, false, pte_young(*pte), pte_dirty(*pte),
+		      locked, migration);
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -541,6 +552,7 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
 	struct vm_area_struct *vma = walk->vma;
 	bool locked = !!(vma->vm_flags & VM_LOCKED);
 	struct page *page = NULL;
+	bool migration = false;
 
 	if (pmd_present(*pmd)) {
 		/* FOLL_DUMP will return -EFAULT on huge zero page */
@@ -548,8 +560,10 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
 	} else if (unlikely(thp_migration_supported() && is_swap_pmd(*pmd))) {
 		swp_entry_t entry = pmd_to_swp_entry(*pmd);
 
-		if (is_migration_entry(entry))
+		if (is_migration_entry(entry)) {
+			migration = true;
 			page = migration_entry_to_page(entry);
+		}
 	}
 	if (IS_ERR_OR_NULL(page))
 		return;
@@ -561,7 +575,9 @@ static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
 		/* pass */;
 	else
 		mss->file_thp += HPAGE_PMD_SIZE;
-	smaps_account(mss, page, true, pmd_young(*pmd), pmd_dirty(*pmd), locked);
+
+	smaps_account(mss, page, true, pmd_young(*pmd), pmd_dirty(*pmd),
+		      locked, migration);
 }
 #else
 static void smaps_pmd_entry(pmd_t *pmd, unsigned long addr,
@@ -1366,6 +1382,7 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm,
 {
 	u64 frame = 0, flags = 0;
 	struct page *page = NULL;
+	bool migration = false;
 
 	if (pte_present(pte)) {
 		if (pm->show_pfn)
@@ -1383,8 +1400,10 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm,
 			frame = swp_type(entry) |
 				(swp_offset(entry) << MAX_SWAPFILES_SHIFT);
 		flags |= PM_SWAP;
-		if (is_migration_entry(entry))
+		if (is_migration_entry(entry)) {
+			migration = true;
 			page = migration_entry_to_page(entry);
+		}
 
 		if (is_device_private_entry(entry))
 			page = device_private_entry_to_page(entry);
@@ -1392,7 +1411,7 @@ static pagemap_entry_t pte_to_pagemap_entry(struct pagemapread *pm,
 
 	if (page && !PageAnon(page))
 		flags |= PM_FILE;
-	if (page && page_mapcount(page) == 1)
+	if (page && !migration && page_mapcount(page) == 1)
 		flags |= PM_MMAP_EXCLUSIVE;
 	if (vma->vm_flags & VM_SOFTDIRTY)
 		flags |= PM_SOFT_DIRTY;
@@ -1408,8 +1427,9 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end,
 	spinlock_t *ptl;
 	pte_t *pte, *orig_pte;
 	int err = 0;
-
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	bool migration = false;
+
 	ptl = pmd_trans_huge_lock(pmdp, vma);
 	if (ptl) {
 		u64 flags = 0, frame = 0;
@@ -1444,11 +1464,12 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end,
 			if (pmd_swp_soft_dirty(pmd))
 				flags |= PM_SOFT_DIRTY;
 			VM_BUG_ON(!is_pmd_migration_entry(pmd));
+			migration = is_migration_entry(entry);
 			page = migration_entry_to_page(entry);
 		}
 #endif
 
-		if (page && page_mapcount(page) == 1)
+		if (page && !migration && page_mapcount(page) == 1)
 			flags |= PM_MMAP_EXCLUSIVE;
 
 		for (; addr != end; addr += PAGE_SIZE) {
-- 
GitLab


From 5d42865fc311af63785c9aa45ca30d1717c1c653 Mon Sep 17 00:00:00 2001
From: Norbert Slusarek <nslusarek@gmx.net>
Date: Wed, 12 May 2021 00:43:54 +0200
Subject: [PATCH 4000/4878] can: isotp: prevent race between isotp_bind() and
 isotp_setsockopt()

commit 2b17c400aeb44daf041627722581ade527bb3c1d upstream.

A race condition was found in isotp_setsockopt() which allows to
change socket options after the socket was bound.
For the specific case of SF_BROADCAST support, this might lead to possible
use-after-free because can_rx_unregister() is not called.

Checking for the flag under the socket lock in isotp_bind() and taking
the lock in isotp_setsockopt() fixes the issue.

Fixes: 921ca574cd38 ("can: isotp: add SF_BROADCAST support for functional addressing")
Link: https://lore.kernel.org/r/trinity-e6ae9efa-9afb-4326-84c0-f3609b9b8168-1620773528307@3c-app-gmx-bs06
Reported-by: Norbert Slusarek <nslusarek@gmx.net>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Norbert Slusarek <nslusarek@gmx.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/can/isotp.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 37db4d232313d..3f11d2b314b68 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -1193,16 +1193,13 @@ static int isotp_getname(struct socket *sock, struct sockaddr *uaddr, int peer)
 	return ISOTP_MIN_NAMELEN;
 }
 
-static int isotp_setsockopt(struct socket *sock, int level, int optname,
+static int isotp_setsockopt_locked(struct socket *sock, int level, int optname,
 			    sockptr_t optval, unsigned int optlen)
 {
 	struct sock *sk = sock->sk;
 	struct isotp_sock *so = isotp_sk(sk);
 	int ret = 0;
 
-	if (level != SOL_CAN_ISOTP)
-		return -EINVAL;
-
 	if (so->bound)
 		return -EISCONN;
 
@@ -1277,6 +1274,22 @@ static int isotp_setsockopt(struct socket *sock, int level, int optname,
 	return ret;
 }
 
+static int isotp_setsockopt(struct socket *sock, int level, int optname,
+			    sockptr_t optval, unsigned int optlen)
+
+{
+	struct sock *sk = sock->sk;
+	int ret;
+
+	if (level != SOL_CAN_ISOTP)
+		return -EINVAL;
+
+	lock_sock(sk);
+	ret = isotp_setsockopt_locked(sock, level, optname, optval, optlen);
+	release_sock(sk);
+	return ret;
+}
+
 static int isotp_getsockopt(struct socket *sock, int level, int optname,
 			    char __user *optval, int __user *optlen)
 {
-- 
GitLab


From 4578b979ef61bbda8ea594899110e983c2c0fa00 Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Sun, 6 Dec 2020 15:47:31 +0100
Subject: [PATCH 4001/4878] can: isotp: add SF_BROADCAST support for functional
 addressing

commit 921ca574cd382142add8b12d0a7117f495510de5 upstream.

When CAN_ISOTP_SF_BROADCAST is set in the CAN_ISOTP_OPTS flags the CAN_ISOTP
socket is switched into functional addressing mode, where only single frame
(SF) protocol data units can be send on the specified CAN interface and the
given tp.tx_id after bind().

In opposite to normal and extended addressing this socket does not register a
CAN-ID for reception which would be needed for a 1-to-1 ISOTP connection with a
segmented bi-directional data transfer.

Sending SFs on this socket is therefore a TX-only 'broadcast' operation.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Thomas Wagner <thwa1@web.de>
Link: https://lore.kernel.org/r/20201206144731.4609-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/can/isotp.h |  2 +-
 net/can/isotp.c                | 50 ++++++++++++++++++++++++----------
 2 files changed, 37 insertions(+), 15 deletions(-)

diff --git a/include/uapi/linux/can/isotp.h b/include/uapi/linux/can/isotp.h
index 7793b26aa154d..c55935b64ccc8 100644
--- a/include/uapi/linux/can/isotp.h
+++ b/include/uapi/linux/can/isotp.h
@@ -135,7 +135,7 @@ struct can_isotp_ll_options {
 #define CAN_ISOTP_FORCE_RXSTMIN	0x100	/* ignore CFs depending on rx stmin */
 #define CAN_ISOTP_RX_EXT_ADDR	0x200	/* different rx extended addressing */
 #define CAN_ISOTP_WAIT_TX_DONE	0x400	/* wait for tx completion */
-
+#define CAN_ISOTP_SF_BROADCAST	0x800	/* 1-to-N functional addressing */
 
 /* default values */
 
diff --git a/net/can/isotp.c b/net/can/isotp.c
index 3f11d2b314b68..d0581dc6a65fd 100644
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -888,6 +888,16 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 		goto err_out_drop;
 	}
 
+	/* take care of a potential SF_DL ESC offset for TX_DL > 8 */
+	off = (so->tx.ll_dl > CAN_MAX_DLEN) ? 1 : 0;
+
+	/* does the given data fit into a single frame for SF_BROADCAST? */
+	if ((so->opt.flags & CAN_ISOTP_SF_BROADCAST) &&
+	    (size > so->tx.ll_dl - SF_PCI_SZ4 - ae - off)) {
+		err = -EINVAL;
+		goto err_out_drop;
+	}
+
 	err = memcpy_from_msg(so->tx.buf, msg, size);
 	if (err < 0)
 		goto err_out_drop;
@@ -915,9 +925,6 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
 	cf = (struct canfd_frame *)skb->data;
 	skb_put_zero(skb, so->ll.mtu);
 
-	/* take care of a potential SF_DL ESC offset for TX_DL > 8 */
-	off = (so->tx.ll_dl > CAN_MAX_DLEN) ? 1 : 0;
-
 	/* check for single frame transmission depending on TX_DL */
 	if (size <= so->tx.ll_dl - SF_PCI_SZ4 - ae - off) {
 		/* The message size generally fits into a SingleFrame - good.
@@ -1057,7 +1064,7 @@ static int isotp_release(struct socket *sock)
 	lock_sock(sk);
 
 	/* remove current filters & unregister */
-	if (so->bound) {
+	if (so->bound && (!(so->opt.flags & CAN_ISOTP_SF_BROADCAST))) {
 		if (so->ifindex) {
 			struct net_device *dev;
 
@@ -1097,15 +1104,12 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len)
 	struct net_device *dev;
 	int err = 0;
 	int notify_enetdown = 0;
+	int do_rx_reg = 1;
 
 	if (len < ISOTP_MIN_NAMELEN)
 		return -EINVAL;
 
-	if (addr->can_addr.tp.rx_id == addr->can_addr.tp.tx_id)
-		return -EADDRNOTAVAIL;
-
-	if ((addr->can_addr.tp.rx_id | addr->can_addr.tp.tx_id) &
-	    (CAN_ERR_FLAG | CAN_RTR_FLAG))
+	if (addr->can_addr.tp.tx_id & (CAN_ERR_FLAG | CAN_RTR_FLAG))
 		return -EADDRNOTAVAIL;
 
 	if (!addr->can_ifindex)
@@ -1113,6 +1117,23 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len)
 
 	lock_sock(sk);
 
+	/* do not register frame reception for functional addressing */
+	if (so->opt.flags & CAN_ISOTP_SF_BROADCAST)
+		do_rx_reg = 0;
+
+	/* do not validate rx address for functional addressing */
+	if (do_rx_reg) {
+		if (addr->can_addr.tp.rx_id == addr->can_addr.tp.tx_id) {
+			err = -EADDRNOTAVAIL;
+			goto out;
+		}
+
+		if (addr->can_addr.tp.rx_id & (CAN_ERR_FLAG | CAN_RTR_FLAG)) {
+			err = -EADDRNOTAVAIL;
+			goto out;
+		}
+	}
+
 	if (so->bound && addr->can_ifindex == so->ifindex &&
 	    addr->can_addr.tp.rx_id == so->rxid &&
 	    addr->can_addr.tp.tx_id == so->txid)
@@ -1138,13 +1159,14 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len)
 
 	ifindex = dev->ifindex;
 
-	can_rx_register(net, dev, addr->can_addr.tp.rx_id,
-			SINGLE_MASK(addr->can_addr.tp.rx_id), isotp_rcv, sk,
-			"isotp", sk);
+	if (do_rx_reg)
+		can_rx_register(net, dev, addr->can_addr.tp.rx_id,
+				SINGLE_MASK(addr->can_addr.tp.rx_id),
+				isotp_rcv, sk, "isotp", sk);
 
 	dev_put(dev);
 
-	if (so->bound) {
+	if (so->bound && do_rx_reg) {
 		/* unregister old filter */
 		if (so->ifindex) {
 			dev = dev_get_by_index(net, so->ifindex);
@@ -1357,7 +1379,7 @@ static void isotp_notify(struct isotp_sock *so, unsigned long msg,
 	case NETDEV_UNREGISTER:
 		lock_sock(sk);
 		/* remove current filters & unregister */
-		if (so->bound)
+		if (so->bound && (!(so->opt.flags & CAN_ISOTP_SF_BROADCAST)))
 			can_rx_unregister(dev_net(dev), dev, so->rxid,
 					  SINGLE_MASK(so->rxid),
 					  isotp_rcv, sk);
-- 
GitLab


From f100e758cef51917c517d7e6ddea29c899ccd52c Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Tue, 21 Sep 2021 07:30:08 -0700
Subject: [PATCH 4002/4878] scsi: lpfc: Fix mailbox command failure during
 driver initialization

commit efe1dc571a5b808baa26682eef16561be2e356fd upstream.

Contention for the mailbox interface may occur during driver initialization
(immediately after a function reset), between mailbox commands initiated
via ioctl (bsg) and those driver requested by the driver.

After setting SLI_ACTIVE flag for a port, there is a window in which the
driver will allow an ioctl to be initiated while the adapter is
initializing and issuing mailbox commands via polling. The polling logic
then gets confused.

Correct by having thread setting SLI_ACTIVE spot an active mailbox command
and allow it complete before proceeding.

Link: https://lore.kernel.org/r/20210921143008.64212-1-jsmart2021@gmail.com
Co-developed-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: Nigel Kirkland <nkirkland2304@gmail.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/lpfc/lpfc_sli.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 4587127b67f7b..a50f870c5f725 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -7372,6 +7372,7 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 	struct lpfc_vport *vport = phba->pport;
 	struct lpfc_dmabuf *mp;
 	struct lpfc_rqb *rqbp;
+	u32 flg;
 
 	/* Perform a PCI function reset to start from clean */
 	rc = lpfc_pci_function_reset(phba);
@@ -7385,7 +7386,17 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 	else {
 		spin_lock_irq(&phba->hbalock);
 		phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
+		flg = phba->sli.sli_flag;
 		spin_unlock_irq(&phba->hbalock);
+		/* Allow a little time after setting SLI_ACTIVE for any polled
+		 * MBX commands to complete via BSG.
+		 */
+		for (i = 0; i < 50 && (flg & LPFC_SLI_MBOX_ACTIVE); i++) {
+			msleep(20);
+			spin_lock_irq(&phba->hbalock);
+			flg = phba->sli.sli_flag;
+			spin_unlock_irq(&phba->hbalock);
+		}
 	}
 
 	lpfc_sli4_dip(phba);
@@ -8922,7 +8933,7 @@ lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
 					"(%d):2541 Mailbox command x%x "
 					"(x%x/x%x) failure: "
 					"mqe_sta: x%x mcqe_sta: x%x/x%x "
-					"Data: x%x x%x\n,",
+					"Data: x%x x%x\n",
 					mboxq->vport ? mboxq->vport->vpi : 0,
 					mboxq->u.mb.mbxCommand,
 					lpfc_sli_config_mbox_subsys_get(phba,
@@ -8956,7 +8967,7 @@ lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
 					"(%d):2597 Sync Mailbox command "
 					"x%x (x%x/x%x) failure: "
 					"mqe_sta: x%x mcqe_sta: x%x/x%x "
-					"Data: x%x x%x\n,",
+					"Data: x%x x%x\n",
 					mboxq->vport ? mboxq->vport->vpi : 0,
 					mboxq->u.mb.mbxCommand,
 					lpfc_sli_config_mbox_subsys_get(phba,
-- 
GitLab


From 126382b5565f6559f7c1f0e530654c7710f14a5d Mon Sep 17 00:00:00 2001
From: Sergio Costas <rastersoft@gmail.com>
Date: Fri, 4 Feb 2022 10:01:17 +0100
Subject: [PATCH 4003/4878] HID:Add support for UGTABLET WP5540

commit fd5dd6acd8f823ea804f76d3af64fa1be9d5fb78 upstream.

This patch adds support for the UGTABLET WP5540 digitizer tablet
devices. Without it, the pen moves the cursor, but neither the
buttons nor the tap sensor in the tip do work.

Signed-off-by: Sergio Costas <rastersoft@gmail.com>
Link: https://lore.kernel.org/r/63dece1d-91ca-1b1b-d90d-335be66896be@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-ids.h    | 1 +
 drivers/hid/hid-quirks.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 370ec4402ebe3..d2e4f9f5507d5 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1318,6 +1318,7 @@
 #define USB_VENDOR_ID_UGTIZER			0x2179
 #define USB_DEVICE_ID_UGTIZER_TABLET_GP0610	0x0053
 #define USB_DEVICE_ID_UGTIZER_TABLET_GT5040	0x0077
+#define USB_DEVICE_ID_UGTIZER_TABLET_WP5540	0x0004
 
 #define USB_VENDOR_ID_VIEWSONIC			0x0543
 #define USB_DEVICE_ID_VIEWSONIC_PD1011		0xe621
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 84a30202e3dbe..2ab71d717bb03 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -187,6 +187,7 @@ static const struct hid_device_id hid_quirks[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60), HID_QUIRK_MULTI_INPUT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_WP5540), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET), HID_QUIRK_MULTI_INPUT },
-- 
GitLab


From fe383750d40d43d74ffc63f2d695c6f7b9901ff3 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Fri, 4 Feb 2022 21:41:55 +0000
Subject: [PATCH 4004/4878] Revert "svm: Add warning message for AVIC IPI
 invalid target"

commit dd4589eee99db8f61f7b8f7df1531cad3f74a64d upstream.

Remove a WARN on an "AVIC IPI invalid target" exit, the WARN is trivial
to trigger from guest as it will fail on any destination APIC ID that
doesn't exist from the guest's perspective.

Don't bother recording anything in the kernel log, the common tracepoint
for kvm_avic_incomplete_ipi() is sufficient for debugging.

This reverts commit 37ef0c4414c9743ba7f1af4392f0a27a99649f2a.

Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220204214205.3306634-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/svm/avic.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index 8c550999ace0c..a8b5533cf601d 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -344,8 +344,6 @@ int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
 		break;
 	}
 	case AVIC_IPI_FAILURE_INVALID_TARGET:
-		WARN_ONCE(1, "Invalid IPI target: index=%u, vcpu=%d, icr=%#0x:%#0x\n",
-			  index, svm->vcpu.vcpu_id, icrh, icrl);
 		break;
 	case AVIC_IPI_FAILURE_INVALID_BACKING_PAGE:
 		WARN_ONCE(1, "Invalid backing page\n");
-- 
GitLab


From 8e3f9a098eca65d60c5d312288b3709d3befef0b Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 14 Feb 2022 10:00:19 -0800
Subject: [PATCH 4005/4878] serial: parisc: GSC: fix build when IOSAPIC is not
 set

commit 6e8793674bb0d1135ca0e5c9f7e16fecbf815926 upstream.

There is a build error when using a kernel .config file from
'kernel test robot' for a different build problem:

hppa64-linux-ld: drivers/tty/serial/8250/8250_gsc.o: in function `.LC3':
(.data.rel.ro+0x18): undefined reference to `iosapic_serial_irq'

when:
  CONFIG_GSC=y
  CONFIG_SERIO_GSCPS2=y
  CONFIG_SERIAL_8250_GSC=y
  CONFIG_PCI is not set
    and hence PCI_LBA is not set.
  IOSAPIC depends on PCI_LBA, so IOSAPIC is not set/enabled.

Make the use of iosapic_serial_irq() conditional to fix the build error.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Johan Hovold <johan@kernel.org>
Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_gsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index 673cda3d011d0..948d0a1c6ae8e 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -26,7 +26,7 @@ static int __init serial_init_chip(struct parisc_device *dev)
 	unsigned long address;
 	int err;
 
-#ifdef CONFIG_64BIT
+#if defined(CONFIG_64BIT) && defined(CONFIG_IOSAPIC)
 	if (!dev->irq && (dev->id.sversion == 0xad))
 		dev->irq = iosapic_serial_irq(dev);
 #endif
-- 
GitLab


From 4d569b959e54fee219847468310680de3bbe4929 Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Sat, 22 Jan 2022 18:19:49 +0000
Subject: [PATCH 4006/4878] parisc: Drop __init from map_pages declaration

commit 9129886b88185962538180625ca8051362b01327 upstream.

With huge kernel pages, we randomly eat a SPARC in map_pages(). This
is fixed by dropping __init from the declaration.

However, map_pages references the __init routine memblock_alloc_try_nid
via memblock_alloc.  Thus, it needs to be marked with __ref.

memblock_alloc is only called before the kernel text is set to readonly.

The __ref on free_initmem is no longer needed.

Comment regarding map_pages being in the init section is removed.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/mm/init.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 8f10cc6ee0fce..319afa00cdf7b 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -346,9 +346,9 @@ static void __init setup_bootmem(void)
 
 static bool kernel_set_to_readonly;
 
-static void __init map_pages(unsigned long start_vaddr,
-			     unsigned long start_paddr, unsigned long size,
-			     pgprot_t pgprot, int force)
+static void __ref map_pages(unsigned long start_vaddr,
+			    unsigned long start_paddr, unsigned long size,
+			    pgprot_t pgprot, int force)
 {
 	pmd_t *pmd;
 	pte_t *pg_table;
@@ -458,7 +458,7 @@ void __init set_kernel_text_rw(int enable_read_write)
 	flush_tlb_all();
 }
 
-void __ref free_initmem(void)
+void free_initmem(void)
 {
 	unsigned long init_begin = (unsigned long)__init_begin;
 	unsigned long init_end = (unsigned long)__init_end;
@@ -472,7 +472,6 @@ void __ref free_initmem(void)
 	/* The init text pages are marked R-X.  We have to
 	 * flush the icache and mark them RW-
 	 *
-	 * This is tricky, because map_pages is in the init section.
 	 * Do a dummy remap of the data section first (the data
 	 * section is already PAGE_KERNEL) to pull in the TLB entries
 	 * for map_kernel */
-- 
GitLab


From f8f519d7df66c334b5e08f896ac70ee3b53add3b Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Wed, 26 Jan 2022 20:39:05 +0000
Subject: [PATCH 4007/4878] parisc: Fix data TLB miss in sba_unmap_sg

commit b7d6f44a0fa716a82969725516dc0b16bc7cd514 upstream.

Rolf Eike Beer reported the following bug:

[1274934.746891] Bad Address (null pointer deref?): Code=15 (Data TLB miss fault) at addr 0000004140000018
[1274934.746891] CPU: 3 PID: 5549 Comm: cmake Not tainted 5.15.4-gentoo-parisc64 #4
[1274934.746891] Hardware name: 9000/785/C8000
[1274934.746891]
[1274934.746891]      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
[1274934.746891] PSW: 00001000000001001111111000001110 Not tainted
[1274934.746891] r00-03  000000ff0804fe0e 0000000040bc9bc0 00000000406760e4 0000004140000000
[1274934.746891] r04-07  0000000040b693c0 0000004140000000 000000004a2b08b0 0000000000000001
[1274934.746891] r08-11  0000000041f98810 0000000000000000 000000004a0a7000 0000000000000001
[1274934.746891] r12-15  0000000040bddbc0 0000000040c0cbc0 0000000040bddbc0 0000000040bddbc0
[1274934.746891] r16-19  0000000040bde3c0 0000000040bddbc0 0000000040bde3c0 0000000000000007
[1274934.746891] r20-23  0000000000000006 000000004a368950 0000000000000000 0000000000000001
[1274934.746891] r24-27  0000000000001fff 000000000800000e 000000004a1710f0 0000000040b693c0
[1274934.746891] r28-31  0000000000000001 0000000041f988b0 0000000041f98840 000000004a171118
[1274934.746891] sr00-03  00000000066e5800 0000000000000000 0000000000000000 00000000066e5800
[1274934.746891] sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[1274934.746891]
[1274934.746891] IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000406760e8 00000000406760ec
[1274934.746891]  IIR: 48780030    ISR: 0000000000000000  IOR: 0000004140000018
[1274934.746891]  CPU:        3   CR30: 00000040e3a9c000 CR31: ffffffffffffffff
[1274934.746891]  ORIG_R28: 0000000040acdd58
[1274934.746891]  IAOQ[0]: sba_unmap_sg+0xb0/0x118
[1274934.746891]  IAOQ[1]: sba_unmap_sg+0xb4/0x118
[1274934.746891]  RP(r2): sba_unmap_sg+0xac/0x118
[1274934.746891] Backtrace:
[1274934.746891]  [<00000000402740cc>] dma_unmap_sg_attrs+0x6c/0x70
[1274934.746891]  [<000000004074d6bc>] scsi_dma_unmap+0x54/0x60
[1274934.746891]  [<00000000407a3488>] mptscsih_io_done+0x150/0xd70
[1274934.746891]  [<0000000040798600>] mpt_interrupt+0x168/0xa68
[1274934.746891]  [<0000000040255a48>] __handle_irq_event_percpu+0xc8/0x278
[1274934.746891]  [<0000000040255c34>] handle_irq_event_percpu+0x3c/0xd8
[1274934.746891]  [<000000004025ecb4>] handle_percpu_irq+0xb4/0xf0
[1274934.746891]  [<00000000402548e0>] generic_handle_irq+0x50/0x70
[1274934.746891]  [<000000004019a254>] call_on_stack+0x18/0x24
[1274934.746891]
[1274934.746891] Kernel panic - not syncing: Bad Address (null pointer deref?)

The bug is caused by overrunning the sglist and incorrectly testing
sg_dma_len(sglist) before nents. Normally this doesn't cause a crash,
but in this case sglist crossed a page boundary. This occurs in the
following code:

	while (sg_dma_len(sglist) && nents--) {

The fix is simply to test nents first and move the decrement of nents
into the loop.

Reported-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/parisc/sba_iommu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index dce4cdf786cdb..228c58060e9b3 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1047,7 +1047,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	spin_unlock_irqrestore(&ioc->res_lock, flags);
 #endif
 
-	while (sg_dma_len(sglist) && nents--) {
+	while (nents && sg_dma_len(sglist)) {
 
 		sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
 				direction, 0);
@@ -1056,6 +1056,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 		ioc->usingle_calls--;	/* kluge since call is unmap_sg() */
 #endif
 		++sglist;
+		nents--;
 	}
 
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__,  nents);
-- 
GitLab


From 7756716872990ef8173e226f689c5cf17528ebdb Mon Sep 17 00:00:00 2001
From: John David Anglin <dave.anglin@bell.net>
Date: Thu, 27 Jan 2022 22:33:41 +0000
Subject: [PATCH 4008/4878] parisc: Fix sglist access in ccio-dma.c

commit d7da660cab47183cded65e11b64497d0f56c6edf upstream.

This patch implements the same bug fix to ccio-dma.c as to sba_iommu.c.
It ensures that only the allocated entries of the sglist are accessed.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/parisc/ccio-dma.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b5f9ee81a46c1..b916fab9b1618 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1003,7 +1003,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	ioc->usg_calls++;
 #endif
 
-	while(sg_dma_len(sglist) && nents--) {
+	while (nents && sg_dma_len(sglist)) {
 
 #ifdef CCIO_COLLECT_STATS
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
@@ -1011,6 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 		ccio_unmap_page(dev, sg_dma_address(sglist),
 				  sg_dma_len(sglist), direction, 0);
 		++sglist;
+		nents--;
 	}
 
 	DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
-- 
GitLab


From ab2b4e65a130d67478bd5b35ca9004b2075805fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20L=C3=B6hle?= <CLoehle@hyperstone.com>
Date: Fri, 4 Feb 2022 15:11:37 +0000
Subject: [PATCH 4009/4878] mmc: block: fix read single on recovery logic

commit 54309fde1a352ad2674ebba004a79f7d20b9f037 upstream.

On reads with MMC_READ_MULTIPLE_BLOCK that fail,
the recovery handler will use MMC_READ_SINGLE_BLOCK for
each of the blocks, up to MMC_READ_SINGLE_RETRIES times each.
The logic for this is fixed to never report unsuccessful reads
as success to the block layer.

On command error with retries remaining, blk_update_request was
called with whatever value error was set last to.
In case it was last set to BLK_STS_OK (default), the read will be
reported as success, even though there was no data read from the device.
This could happen on a CRC mismatch for the response,
a card rejecting the command (e.g. again due to a CRC mismatch).
In case it was last set to BLK_STS_IOERR, the error is reported correctly,
but no retries will be attempted.

Fixes: 81196976ed946c ("mmc: block: Add blk-mq support")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Loehle <cloehle@hyperstone.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/bc706a6ab08c4fe2834ba0c05a804672@hyperstone.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/core/block.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 94caee49da99c..99b981a05b6c0 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1642,31 +1642,31 @@ static void mmc_blk_read_single(struct mmc_queue *mq, struct request *req)
 	struct mmc_card *card = mq->card;
 	struct mmc_host *host = card->host;
 	blk_status_t error = BLK_STS_OK;
-	int retries = 0;
 
 	do {
 		u32 status;
 		int err;
+		int retries = 0;
 
-		mmc_blk_rw_rq_prep(mqrq, card, 1, mq);
+		while (retries++ <= MMC_READ_SINGLE_RETRIES) {
+			mmc_blk_rw_rq_prep(mqrq, card, 1, mq);
 
-		mmc_wait_for_req(host, mrq);
+			mmc_wait_for_req(host, mrq);
 
-		err = mmc_send_status(card, &status);
-		if (err)
-			goto error_exit;
-
-		if (!mmc_host_is_spi(host) &&
-		    !mmc_ready_for_data(status)) {
-			err = mmc_blk_fix_state(card, req);
+			err = mmc_send_status(card, &status);
 			if (err)
 				goto error_exit;
-		}
 
-		if (mrq->cmd->error && retries++ < MMC_READ_SINGLE_RETRIES)
-			continue;
+			if (!mmc_host_is_spi(host) &&
+			    !mmc_ready_for_data(status)) {
+				err = mmc_blk_fix_state(card, req);
+				if (err)
+					goto error_exit;
+			}
 
-		retries = 0;
+			if (!mrq->cmd->error)
+				break;
+		}
 
 		if (mrq->cmd->error ||
 		    mrq->data->error ||
-- 
GitLab


From 254090925e16abd914c87b4ad1b489440d89c4c3 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 17 Feb 2022 08:57:47 -0800
Subject: [PATCH 4010/4878] mm: don't try to NUMA-migrate COW pages that have
 other uses

commit 80d47f5de5e311cbc0d01ebb6ee684e8f4c196c6 upstream.

Oded Gabbay reports that enabling NUMA balancing causes corruption with
his Gaudi accelerator test load:

 "All the details are in the bug, but the bottom line is that somehow,
  this patch causes corruption when the numa balancing feature is
  enabled AND we don't use process affinity AND we use GUP to pin pages
  so our accelerator can DMA to/from system memory.

  Either disabling numa balancing, using process affinity to bind to
  specific numa-node or reverting this patch causes the bug to
  disappear"

and Oded bisected the issue to commit 09854ba94c6a ("mm: do_wp_page()
simplification").

Now, the NUMA balancing shouldn't actually be changing the writability
of a page, and as such shouldn't matter for COW.  But it appears it
does.  Suspicious.

However, regardless of that, the condition for enabling NUMA faults in
change_pte_range() is nonsensical.  It uses "page_mapcount(page)" to
decide if a COW page should be NUMA-protected or not, and that makes
absolutely no sense.

The number of mappings a page has is irrelevant: not only does GUP get a
reference to a page as in Oded's case, but the other mappings migth be
paged out and the only reference to them would be in the page count.

Since we should never try to NUMA-balance a page that we can't move
anyway due to other references, just fix the code to use 'page_count()'.
Oded confirms that that fixes his issue.

Now, this does imply that something in NUMA balancing ends up changing
page protections (other than the obvious one of making the page
inaccessible to get the NUMA faulting information).  Otherwise the COW
simplification wouldn't matter - since doing the GUP on the page would
make sure it's writable.

The cause of that permission change would be good to figure out too,
since it clearly results in spurious COW events - but fixing the
nonsensical test that just happened to work before is obviously the
CorrectThing(tm) to do regardless.

Fixes: 09854ba94c6a ("mm: do_wp_page() simplification")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215616
Link: https://lore.kernel.org/all/CAFCwf10eNmwq2wD71xjUhqkvv5+_pJMR1nPug2RqNDcFT4H86Q@mail.gmail.com/
Reported-and-tested-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/mprotect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 56c02beb60414..7ea0aee0c08d9 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -94,7 +94,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
 				/* Also skip shared copy-on-write pages */
 				if (is_cow_mapping(vma->vm_flags) &&
-				    page_mapcount(page) != 1)
+				    page_count(page) != 1)
 					continue;
 
 				/*
-- 
GitLab


From ade1077c7fc054d1207ed6fbf3787f921af95814 Mon Sep 17 00:00:00 2001
From: Long Li <longli@microsoft.com>
Date: Wed, 26 Jan 2022 17:43:34 -0800
Subject: [PATCH 4011/4878] PCI: hv: Fix NUMA node assignment when kernel boots
 with custom NUMA topology

commit 3149efcdf2c6314420c418dfc94de53bfd076b1f upstream.

When kernel boots with a NUMA topology with some NUMA nodes offline, the PCI
driver should only set an online NUMA node on the device. This can happen
during KDUMP where some NUMA nodes are not made online by the KDUMP kernel.

This patch also fixes the case where kernel is booting with "numa=off".

Fixes: 999dd956d838 ("PCI: hv: Add support for protocol 1.3 and support PCI_BUS_RELATIONS2")
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Purna Pavan Chandra Aekkaladevi <paekkaladevi@microsoft.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/1643247814-15184-1-git-send-email-longli@linuxonhyperv.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/controller/pci-hyperv.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index ad3e3cde1c20d..a070e69bb49cd 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -1841,8 +1841,17 @@ static void hv_pci_assign_numa_node(struct hv_pcibus_device *hbus)
 		if (!hv_dev)
 			continue;
 
-		if (hv_dev->desc.flags & HV_PCI_DEVICE_FLAG_NUMA_AFFINITY)
-			set_dev_node(&dev->dev, hv_dev->desc.virtual_numa_node);
+		if (hv_dev->desc.flags & HV_PCI_DEVICE_FLAG_NUMA_AFFINITY &&
+		    hv_dev->desc.virtual_numa_node < num_possible_nodes())
+			/*
+			 * The kernel may boot with some NUMA nodes offline
+			 * (e.g. in a KDUMP kernel) or with NUMA disabled via
+			 * "numa=off". In those cases, adjust the host provided
+			 * NUMA node to a valid NUMA node used by the kernel.
+			 */
+			set_dev_node(&dev->dev,
+				     numa_map_to_online_node(
+					     hv_dev->desc.virtual_numa_node));
 
 		put_pcichild(hv_dev);
 	}
-- 
GitLab


From 78a68bbebdcc34314600764fce0c11d8679e1ceb Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 7 Feb 2022 17:16:39 +0200
Subject: [PATCH 4012/4878] parisc: Add ioread64_lo_hi() and iowrite64_lo_hi()

commit 18a1d5e1945385d9b5adc3fe11427ce4a9d2826e upstream.

It's a followup to the previous commit f15309d7ad5d ("parisc: Add
ioread64_hi_lo() and iowrite64_hi_lo()") which does only half of
the job. Add the rest, so we won't get a new kernel test robot
reports.

Fixes: f15309d7ad5d ("parisc: Add ioread64_hi_lo() and iowrite64_hi_lo()")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/lib/iomap.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index f03adb1999e77..e362d6a147311 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -346,6 +346,16 @@ u64 ioread64be(const void __iomem *addr)
 	return *((u64 *)addr);
 }
 
+u64 ioread64_lo_hi(const void __iomem *addr)
+{
+	u32 low, high;
+
+	low = ioread32(addr);
+	high = ioread32(addr + sizeof(u32));
+
+	return low + ((u64)high << 32);
+}
+
 u64 ioread64_hi_lo(const void __iomem *addr)
 {
 	u32 low, high;
@@ -419,6 +429,12 @@ void iowrite64be(u64 datum, void __iomem *addr)
 	}
 }
 
+void iowrite64_lo_hi(u64 val, void __iomem *addr)
+{
+	iowrite32(val, addr);
+	iowrite32(val >> 32, addr + sizeof(u32));
+}
+
 void iowrite64_hi_lo(u64 val, void __iomem *addr)
 {
 	iowrite32(val >> 32, addr + sizeof(u32));
@@ -527,6 +543,7 @@ EXPORT_SYMBOL(ioread32);
 EXPORT_SYMBOL(ioread32be);
 EXPORT_SYMBOL(ioread64);
 EXPORT_SYMBOL(ioread64be);
+EXPORT_SYMBOL(ioread64_lo_hi);
 EXPORT_SYMBOL(ioread64_hi_lo);
 EXPORT_SYMBOL(iowrite8);
 EXPORT_SYMBOL(iowrite16);
@@ -535,6 +552,7 @@ EXPORT_SYMBOL(iowrite32);
 EXPORT_SYMBOL(iowrite32be);
 EXPORT_SYMBOL(iowrite64);
 EXPORT_SYMBOL(iowrite64be);
+EXPORT_SYMBOL(iowrite64_lo_hi);
 EXPORT_SYMBOL(iowrite64_hi_lo);
 EXPORT_SYMBOL(ioread8_rep);
 EXPORT_SYMBOL(ioread16_rep);
-- 
GitLab


From 0b17d4b51c6311469a6498e0215f43a4008f156c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C4=81vis=20Mos=C4=81ns?= <davispuh@gmail.com>
Date: Sat, 5 Feb 2022 20:48:23 +0200
Subject: [PATCH 4013/4878] btrfs: send: in case of IO error log it
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 2e7be9db125a0bf940c5d65eb5c40d8700f738b5 upstream.

Currently if we get IO error while doing send then we abort without
logging information about which file caused issue.  So log it to help
with debugging.

CC: stable@vger.kernel.org # 4.9+
Signed-off-by: Dāvis Mosāns <davispuh@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/send.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 10f020ab1186f..6b80dee17f49d 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -5006,6 +5006,10 @@ static int put_file_data(struct send_ctx *sctx, u64 offset, u32 len)
 			lock_page(page);
 			if (!PageUptodate(page)) {
 				unlock_page(page);
+				btrfs_err(fs_info,
+			"send: IO error at offset %llu for inode %llu root %llu",
+					page_offset(page), sctx->cur_ino,
+					sctx->send_root->root_key.objectid);
 				put_page(page);
 				ret = -EIO;
 				break;
-- 
GitLab


From 066c905ed06c3a6895ddafcd177b7657a9350ff4 Mon Sep 17 00:00:00 2001
From: Yuka Kawajiri <yukx00@gmail.com>
Date: Wed, 12 Jan 2022 00:40:21 +0900
Subject: [PATCH 4014/4878] platform/x86: touchscreen_dmi: Add info for the RWC
 NANOTE P8 AY07J 2-in-1

[ Upstream commit 512eb73cfd1208898cf10cb06094e0ee0bb53b58 ]

Add touchscreen info for RWC NANOTE P8 (AY07J) 2-in-1.

Signed-off-by: Yuka Kawajiri <yukx00@gmail.com>
Link: https://lore.kernel.org/r/20220111154019.4599-1-yukx00@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/touchscreen_dmi.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/platform/x86/touchscreen_dmi.c b/drivers/platform/x86/touchscreen_dmi.c
index 59b7e90cd5875..ab6a9369649db 100644
--- a/drivers/platform/x86/touchscreen_dmi.c
+++ b/drivers/platform/x86/touchscreen_dmi.c
@@ -756,6 +756,21 @@ static const struct ts_dmi_data predia_basic_data = {
 	.properties	= predia_basic_props,
 };
 
+static const struct property_entry rwc_nanote_p8_props[] = {
+	PROPERTY_ENTRY_U32("touchscreen-min-y", 46),
+	PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
+	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
+	PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
+	PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-rwc-nanote-p8.fw"),
+	PROPERTY_ENTRY_U32("silead,max-fingers", 10),
+	{ }
+};
+
+static const struct ts_dmi_data rwc_nanote_p8_data = {
+	.acpi_name = "MSSL1680:00",
+	.properties = rwc_nanote_p8_props,
+};
+
 static const struct property_entry schneider_sct101ctm_props[] = {
 	PROPERTY_ENTRY_U32("touchscreen-size-x", 1715),
 	PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
@@ -1326,6 +1341,15 @@ const struct dmi_system_id touchscreen_dmi_table[] = {
 			DMI_EXACT_MATCH(DMI_BOARD_NAME, "0E57"),
 		},
 	},
+	{
+		/* RWC NANOTE P8 */
+		.driver_data = (void *)&rwc_nanote_p8_data,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Default string"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "AY07J"),
+			DMI_MATCH(DMI_PRODUCT_SKU, "0001")
+		},
+	},
 	{
 		/* Schneider SCT101CTM */
 		.driver_data = (void *)&schneider_sct101ctm_data,
-- 
GitLab


From 79175b6ee658fa0c4bd8f2a45de301c8f1d5f754 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 11 Jan 2022 18:25:21 -0800
Subject: [PATCH 4015/4878] platform/x86: ISST: Fix possible circular locking
 dependency detected

[ Upstream commit 17da2d5f93692086dd096a975225ffd5622d0bf8 ]

As reported:

[  256.104522] ======================================================
[  256.113783] WARNING: possible circular locking dependency detected
[  256.120093] 5.16.0-rc6-yocto-standard+ #99 Not tainted
[  256.125362] ------------------------------------------------------
[  256.131673] intel-speed-sel/844 is trying to acquire lock:
[  256.137290] ffffffffc036f0d0 (punit_misc_dev_lock){+.+.}-{3:3}, at: isst_if_open+0x18/0x90 [isst_if_common]
[  256.147171]
[  256.147171] but task is already holding lock:
[  256.153135] ffffffff8ee7cb50 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x2a/0x170
[  256.160407]
[  256.160407] which lock already depends on the new lock.
[  256.160407]
[  256.168712]
[  256.168712] the existing dependency chain (in reverse order) is:
[  256.176327]
[  256.176327] -> #1 (misc_mtx){+.+.}-{3:3}:
[  256.181946]        lock_acquire+0x1e6/0x330
[  256.186265]        __mutex_lock+0x9b/0x9b0
[  256.190497]        mutex_lock_nested+0x1b/0x20
[  256.195075]        misc_register+0x32/0x1a0
[  256.199390]        isst_if_cdev_register+0x65/0x180 [isst_if_common]
[  256.205878]        isst_if_probe+0x144/0x16e [isst_if_mmio]
...
[  256.241976]
[  256.241976] -> #0 (punit_misc_dev_lock){+.+.}-{3:3}:
[  256.248552]        validate_chain+0xbc6/0x1750
[  256.253131]        __lock_acquire+0x88c/0xc10
[  256.257618]        lock_acquire+0x1e6/0x330
[  256.261933]        __mutex_lock+0x9b/0x9b0
[  256.266165]        mutex_lock_nested+0x1b/0x20
[  256.270739]        isst_if_open+0x18/0x90 [isst_if_common]
[  256.276356]        misc_open+0x100/0x170
[  256.280409]        chrdev_open+0xa5/0x1e0
...

The call sequence suggested that misc_device /dev file can be opened
before misc device is yet to be registered, which is done only once.

Here punit_misc_dev_lock was used as common lock, to protect the
registration by multiple ISST HW drivers, one time setup, prevent
duplicate registry of misc device and prevent load/unload when device
is open.

We can split into locks:
- One which just prevent duplicate call to misc_register() and one
time setup. Also never call again if the misc_register() failed or
required one time setup is failed. This lock is not shared with
any misc device callbacks.

- The other lock protects registry, load and unload of HW drivers.

Sequence in isst_if_cdev_register()
- Register callbacks under punit_misc_dev_open_lock
- Call isst_misc_reg() which registers misc_device on the first
registry which is under punit_misc_dev_reg_lock, which is not
shared with callbacks.

Sequence in isst_if_cdev_unregister
Just opposite of isst_if_cdev_register

Reported-and-tested-by: Liwei Song <liwei.song@windriver.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220112022521.54669-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../intel_speed_select_if/isst_if_common.c    | 97 ++++++++++++-------
 1 file changed, 63 insertions(+), 34 deletions(-)

diff --git a/drivers/platform/x86/intel_speed_select_if/isst_if_common.c b/drivers/platform/x86/intel_speed_select_if/isst_if_common.c
index 0c2aa22c7a12e..407afafc7e83f 100644
--- a/drivers/platform/x86/intel_speed_select_if/isst_if_common.c
+++ b/drivers/platform/x86/intel_speed_select_if/isst_if_common.c
@@ -532,7 +532,10 @@ static long isst_if_def_ioctl(struct file *file, unsigned int cmd,
 	return ret;
 }
 
-static DEFINE_MUTEX(punit_misc_dev_lock);
+/* Lock to prevent module registration when already opened by user space */
+static DEFINE_MUTEX(punit_misc_dev_open_lock);
+/* Lock to allow one share misc device for all ISST interace */
+static DEFINE_MUTEX(punit_misc_dev_reg_lock);
 static int misc_usage_count;
 static int misc_device_ret;
 static int misc_device_open;
@@ -542,7 +545,7 @@ static int isst_if_open(struct inode *inode, struct file *file)
 	int i, ret = 0;
 
 	/* Fail open, if a module is going away */
-	mutex_lock(&punit_misc_dev_lock);
+	mutex_lock(&punit_misc_dev_open_lock);
 	for (i = 0; i < ISST_IF_DEV_MAX; ++i) {
 		struct isst_if_cmd_cb *cb = &punit_callbacks[i];
 
@@ -564,7 +567,7 @@ static int isst_if_open(struct inode *inode, struct file *file)
 	} else {
 		misc_device_open++;
 	}
-	mutex_unlock(&punit_misc_dev_lock);
+	mutex_unlock(&punit_misc_dev_open_lock);
 
 	return ret;
 }
@@ -573,7 +576,7 @@ static int isst_if_relase(struct inode *inode, struct file *f)
 {
 	int i;
 
-	mutex_lock(&punit_misc_dev_lock);
+	mutex_lock(&punit_misc_dev_open_lock);
 	misc_device_open--;
 	for (i = 0; i < ISST_IF_DEV_MAX; ++i) {
 		struct isst_if_cmd_cb *cb = &punit_callbacks[i];
@@ -581,7 +584,7 @@ static int isst_if_relase(struct inode *inode, struct file *f)
 		if (cb->registered)
 			module_put(cb->owner);
 	}
-	mutex_unlock(&punit_misc_dev_lock);
+	mutex_unlock(&punit_misc_dev_open_lock);
 
 	return 0;
 }
@@ -598,6 +601,43 @@ static struct miscdevice isst_if_char_driver = {
 	.fops		= &isst_if_char_driver_ops,
 };
 
+static int isst_misc_reg(void)
+{
+	mutex_lock(&punit_misc_dev_reg_lock);
+	if (misc_device_ret)
+		goto unlock_exit;
+
+	if (!misc_usage_count) {
+		misc_device_ret = isst_if_cpu_info_init();
+		if (misc_device_ret)
+			goto unlock_exit;
+
+		misc_device_ret = misc_register(&isst_if_char_driver);
+		if (misc_device_ret) {
+			isst_if_cpu_info_exit();
+			goto unlock_exit;
+		}
+	}
+	misc_usage_count++;
+
+unlock_exit:
+	mutex_unlock(&punit_misc_dev_reg_lock);
+
+	return misc_device_ret;
+}
+
+static void isst_misc_unreg(void)
+{
+	mutex_lock(&punit_misc_dev_reg_lock);
+	if (misc_usage_count)
+		misc_usage_count--;
+	if (!misc_usage_count && !misc_device_ret) {
+		misc_deregister(&isst_if_char_driver);
+		isst_if_cpu_info_exit();
+	}
+	mutex_unlock(&punit_misc_dev_reg_lock);
+}
+
 /**
  * isst_if_cdev_register() - Register callback for IOCTL
  * @device_type: The device type this callback handling.
@@ -615,38 +655,31 @@ static struct miscdevice isst_if_char_driver = {
  */
 int isst_if_cdev_register(int device_type, struct isst_if_cmd_cb *cb)
 {
-	if (misc_device_ret)
-		return misc_device_ret;
+	int ret;
 
 	if (device_type >= ISST_IF_DEV_MAX)
 		return -EINVAL;
 
-	mutex_lock(&punit_misc_dev_lock);
+	mutex_lock(&punit_misc_dev_open_lock);
+	/* Device is already open, we don't want to add new callbacks */
 	if (misc_device_open) {
-		mutex_unlock(&punit_misc_dev_lock);
+		mutex_unlock(&punit_misc_dev_open_lock);
 		return -EAGAIN;
 	}
-	if (!misc_usage_count) {
-		int ret;
-
-		misc_device_ret = misc_register(&isst_if_char_driver);
-		if (misc_device_ret)
-			goto unlock_exit;
-
-		ret = isst_if_cpu_info_init();
-		if (ret) {
-			misc_deregister(&isst_if_char_driver);
-			misc_device_ret = ret;
-			goto unlock_exit;
-		}
-	}
 	memcpy(&punit_callbacks[device_type], cb, sizeof(*cb));
 	punit_callbacks[device_type].registered = 1;
-	misc_usage_count++;
-unlock_exit:
-	mutex_unlock(&punit_misc_dev_lock);
+	mutex_unlock(&punit_misc_dev_open_lock);
 
-	return misc_device_ret;
+	ret = isst_misc_reg();
+	if (ret) {
+		/*
+		 * No need of mutex as the misc device register failed
+		 * as no one can open device yet. Hence no contention.
+		 */
+		punit_callbacks[device_type].registered = 0;
+		return ret;
+	}
+	return 0;
 }
 EXPORT_SYMBOL_GPL(isst_if_cdev_register);
 
@@ -661,16 +694,12 @@ EXPORT_SYMBOL_GPL(isst_if_cdev_register);
  */
 void isst_if_cdev_unregister(int device_type)
 {
-	mutex_lock(&punit_misc_dev_lock);
-	misc_usage_count--;
+	isst_misc_unreg();
+	mutex_lock(&punit_misc_dev_open_lock);
 	punit_callbacks[device_type].registered = 0;
 	if (device_type == ISST_IF_DEV_MBOX)
 		isst_delete_hash();
-	if (!misc_usage_count && !misc_device_ret) {
-		misc_deregister(&isst_if_char_driver);
-		isst_if_cpu_info_exit();
-	}
-	mutex_unlock(&punit_misc_dev_lock);
+	mutex_unlock(&punit_misc_dev_open_lock);
 }
 EXPORT_SYMBOL_GPL(isst_if_cdev_unregister);
 
-- 
GitLab


From 1136141f19ab3a53bdbb30e178dd0a8b5f6debc2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?=
 <nfraprado@collabora.com>
Date: Wed, 12 Jan 2022 14:41:42 -0500
Subject: [PATCH 4016/4878] selftests: rtc: Increase test timeout so that all
 tests run
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f034cc1301e7d83d4ec428dd6b8ffb57ca446efb ]

The timeout setting for the rtc kselftest is currently 90 seconds. This
setting is used by the kselftest runner to stop running a test if it
takes longer than the assigned value.

However, two of the test cases inside rtc set alarms. These alarms are
set to the next beginning of the minute, so each of these test cases may
take up to, in the worst case, 60 seconds.

In order to allow for all test cases in rtc to run, even in the worst
case, when using the kselftest runner, the timeout value should be
increased to at least 120. Set it to 180, so there's some additional
slack.

Correct operation can be tested by running the following command right
after the start of a minute (low second count), and checking that all
test cases run:

	./run_kselftest.sh -c rtc

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/rtc/settings | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rtc/settings b/tools/testing/selftests/rtc/settings
index ba4d85f74cd6b..a953c96aa16e1 100644
--- a/tools/testing/selftests/rtc/settings
+++ b/tools/testing/selftests/rtc/settings
@@ -1 +1 @@
-timeout=90
+timeout=180
-- 
GitLab


From 0c18a751930cd88fbc4c110aab89ee6ba3ce710d Mon Sep 17 00:00:00 2001
From: Li Zhijian <lizhijian@cn.fujitsu.com>
Date: Fri, 17 Dec 2021 17:29:55 +0800
Subject: [PATCH 4017/4878] kselftest: signal all child processes

[ Upstream commit 92d25637a3a45904292c93f1863c6bbda4e3e38f ]

We have some many cases that will create child process as well, such as
pidfd_wait. Previously, we will signal/kill the parent process when it
is time out, but this signal will not be sent to its child process. In
such case, if child process doesn't terminate itself, ksefltest framework
will hang forever.

Here we group all its child processes so that kill() can signal all of
them in timeout.

Fixed change log: Shuah Khan <skhan@linuxfoundation.org>

Suggested-by: yang xu <xuyang2018.jy@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kselftest_harness.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 5ecb9718e1616..3e7b2e521cde4 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -871,7 +871,8 @@ static void __timeout_handler(int sig, siginfo_t *info, void *ucontext)
 	}
 
 	t->timed_out = true;
-	kill(t->pid, SIGKILL);
+	// signal process group
+	kill(-(t->pid), SIGKILL);
 }
 
 void __wait_for_test(struct __test_metadata *t)
@@ -981,6 +982,7 @@ void __run_test(struct __fixture_metadata *f,
 		ksft_print_msg("ERROR SPAWNING TEST CHILD\n");
 		t->passed = 0;
 	} else if (t->pid == 0) {
+		setpgrp();
 		t->fn(t, variant);
 		if (t->skip)
 			_exit(255);
-- 
GitLab


From 0fd484644c68897c490a3307bfcc8bf767df5a43 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 25 Jan 2022 13:14:23 +0100
Subject: [PATCH 4018/4878] net: ieee802154: at86rf230: Stop leaking skb's

[ Upstream commit e5ce576d45bf72fd0e3dc37eff897bfcc488f6a9 ]

Upon error the ieee802154_xmit_complete() helper is not called. Only
ieee802154_wake_queue() is called manually. In the Tx case we then leak
the skb structure.

Free the skb structure upon error before returning when appropriate.

As the 'is_tx = 0' cannot be moved in the complete handler because of a
possible race between the delay in switching to STATE_RX_AACK_ON and a
new interrupt, we introduce an intermediate 'was_tx' boolean just for
this purpose.

There is no Fixes tag applying here, many changes have been made on this
area and the issue kind of always existed.

Suggested-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125121426.848337-4-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ieee802154/at86rf230.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 7d67f41387f55..4f5ef8a9a9a87 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -100,6 +100,7 @@ struct at86rf230_local {
 	unsigned long cal_timeout;
 	bool is_tx;
 	bool is_tx_from_off;
+	bool was_tx;
 	u8 tx_retry;
 	struct sk_buff *tx_skb;
 	struct at86rf230_state_change tx;
@@ -343,7 +344,11 @@ at86rf230_async_error_recover_complete(void *context)
 	if (ctx->free)
 		kfree(ctx);
 
-	ieee802154_wake_queue(lp->hw);
+	if (lp->was_tx) {
+		lp->was_tx = 0;
+		dev_kfree_skb_any(lp->tx_skb);
+		ieee802154_wake_queue(lp->hw);
+	}
 }
 
 static void
@@ -352,7 +357,11 @@ at86rf230_async_error_recover(void *context)
 	struct at86rf230_state_change *ctx = context;
 	struct at86rf230_local *lp = ctx->lp;
 
-	lp->is_tx = 0;
+	if (lp->is_tx) {
+		lp->was_tx = 1;
+		lp->is_tx = 0;
+	}
+
 	at86rf230_async_state_change(lp, ctx, STATE_RX_AACK_ON,
 				     at86rf230_async_error_recover_complete);
 }
-- 
GitLab


From 7bb704b69fb1da36ea8adcb5163570467e848535 Mon Sep 17 00:00:00 2001
From: Yang Xu <xuyang2018.jy@fujitsu.com>
Date: Thu, 27 Jan 2022 17:11:35 +0800
Subject: [PATCH 4019/4878] selftests/zram: Skip max_comp_streams interface on
 newer kernel

[ Upstream commit fc4eb486a59d70bd35cf1209f0e68c2d8b979193 ]

Since commit 43209ea2d17a ("zram: remove max_comp_streams internals"), zram
has switched to per-cpu streams. Even kernel still keep this interface for
some reasons, but writing to max_comp_stream doesn't take any effect. So
skip it on newer kernel ie 4.7.

The code that comparing kernel version is from xfstests testsuite ext4/053.

Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/zram/zram_lib.sh | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/tools/testing/selftests/zram/zram_lib.sh b/tools/testing/selftests/zram/zram_lib.sh
index 6f872f266fd11..f47fc0f27e99e 100755
--- a/tools/testing/selftests/zram/zram_lib.sh
+++ b/tools/testing/selftests/zram/zram_lib.sh
@@ -11,6 +11,9 @@ dev_mounted=-1
 
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
+kernel_version=`uname -r | cut -d'.' -f1,2`
+kernel_major=${kernel_version%.*}
+kernel_minor=${kernel_version#*.}
 
 trap INT
 
@@ -25,6 +28,20 @@ check_prereqs()
 	fi
 }
 
+kernel_gte()
+{
+	major=${1%.*}
+	minor=${1#*.}
+
+	if [ $kernel_major -gt $major ]; then
+		return 0
+	elif [[ $kernel_major -eq $major && $kernel_minor -ge $minor ]]; then
+		return 0
+	fi
+
+	return 1
+}
+
 zram_cleanup()
 {
 	echo "zram cleanup"
@@ -86,6 +103,13 @@ zram_max_streams()
 {
 	echo "set max_comp_streams to zram device(s)"
 
+	kernel_gte 4.7
+	if [ $? -eq 0 ]; then
+		echo "The device attribute max_comp_streams was"\
+		               "deprecated in 4.7"
+		return 0
+	fi
+
 	local i=0
 	for max_s in $zram_max_streams; do
 		local sys_path="/sys/block/zram${i}/max_comp_streams"
-- 
GitLab


From f0eba714c11d1011aeb1d2afcac0d4051a742c4d Mon Sep 17 00:00:00 2001
From: Yang Xu <xuyang2018.jy@fujitsu.com>
Date: Thu, 27 Jan 2022 17:11:36 +0800
Subject: [PATCH 4020/4878] selftests/zram01.sh: Fix compression ratio
 calculation

[ Upstream commit d18da7ec3719559d6e74937266d0416e6c7e0b31 ]

zram01 uses `free -m` to measure zram memory usage. The results are no
sense because they are polluted by all running processes on the system.

We Should only calculate the free memory delta for the current process.
So use the third field of /sys/block/zram<id>/mm_stat to measure memory
usage instead. The file is available since kernel 4.1.

orig_data_size(first): uncompressed size of data stored in this disk.
compr_data_size(second): compressed size of data stored in this disk
mem_used_total(third): the amount of memory allocated for this disk

Also remove useless zram cleanup call in zram_fill_fs and so we don't
need to cleanup zram twice if fails.

Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/zram/zram01.sh | 30 +++++++-------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/tools/testing/selftests/zram/zram01.sh b/tools/testing/selftests/zram/zram01.sh
index 114863d9fb876..e9e9eb777e2c7 100755
--- a/tools/testing/selftests/zram/zram01.sh
+++ b/tools/testing/selftests/zram/zram01.sh
@@ -33,8 +33,6 @@ zram_algs="lzo"
 
 zram_fill_fs()
 {
-	local mem_free0=$(free -m | awk 'NR==2 {print $4}')
-
 	for i in $(seq 0 $(($dev_num - 1))); do
 		echo "fill zram$i..."
 		local b=0
@@ -45,29 +43,17 @@ zram_fill_fs()
 			b=$(($b + 1))
 		done
 		echo "zram$i can be filled with '$b' KB"
-	done
 
-	local mem_free1=$(free -m | awk 'NR==2 {print $4}')
-	local used_mem=$(($mem_free0 - $mem_free1))
+		local mem_used_total=`awk '{print $3}' "/sys/block/zram$i/mm_stat"`
+		local v=$((100 * 1024 * $b / $mem_used_total))
+		if [ "$v" -lt 100 ]; then
+			 echo "FAIL compression ratio: 0.$v:1"
+			 ERR_CODE=-1
+			 return
+		fi
 
-	local total_size=0
-	for sm in $zram_sizes; do
-		local s=$(echo $sm | sed 's/M//')
-		total_size=$(($total_size + $s))
+		echo "zram compression ratio: $(echo "scale=2; $v / 100 " | bc):1: OK"
 	done
-
-	echo "zram used ${used_mem}M, zram disk sizes ${total_size}M"
-
-	local v=$((100 * $total_size / $used_mem))
-
-	if [ "$v" -lt 100 ]; then
-		echo "FAIL compression ratio: 0.$v:1"
-		ERR_CODE=-1
-		zram_cleanup
-		return
-	fi
-
-	echo "zram compression ratio: $(echo "scale=2; $v / 100 " | bc):1: OK"
 }
 
 check_prereqs
-- 
GitLab


From bfc84cfd909b2611806066699b7aca656b4f38e2 Mon Sep 17 00:00:00 2001
From: Yang Xu <xuyang2018.jy@fujitsu.com>
Date: Thu, 27 Jan 2022 17:11:37 +0800
Subject: [PATCH 4021/4878] selftests/zram: Adapt the situation that /dev/zram0
 is being used

[ Upstream commit 01dabed20573804750af5c7bf8d1598a6bf7bf6e ]

If zram-generator package is installed and works, then we can not remove
zram module because zram swap is being used. This case needs a clean zram
environment, change this test by using hot_add/hot_remove interface. So
even zram device is being used, we still can add zram device and remove
them in cleanup.

The two interface was introduced since kernel commit 6566d1a32bf7("zram:
add dynamic device add/remove functionality") in v4.2-rc1. If kernel
supports these two interface, we use hot_add/hot_remove to slove this
problem, if not, just check whether zram is being used or built in, then
skip it on old kernel.

Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/zram/zram.sh     |  15 +---
 tools/testing/selftests/zram/zram01.sh   |   3 +-
 tools/testing/selftests/zram/zram02.sh   |   1 -
 tools/testing/selftests/zram/zram_lib.sh | 110 +++++++++++++----------
 4 files changed, 66 insertions(+), 63 deletions(-)

diff --git a/tools/testing/selftests/zram/zram.sh b/tools/testing/selftests/zram/zram.sh
index 232e958ec4547..b0b91d9b0dc21 100755
--- a/tools/testing/selftests/zram/zram.sh
+++ b/tools/testing/selftests/zram/zram.sh
@@ -2,9 +2,6 @@
 # SPDX-License-Identifier: GPL-2.0
 TCID="zram.sh"
 
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
-
 . ./zram_lib.sh
 
 run_zram () {
@@ -18,14 +15,4 @@ echo ""
 
 check_prereqs
 
-# check zram module exists
-MODULE_PATH=/lib/modules/`uname -r`/kernel/drivers/block/zram/zram.ko
-if [ -f $MODULE_PATH ]; then
-	run_zram
-elif [ -b /dev/zram0 ]; then
-	run_zram
-else
-	echo "$TCID : No zram.ko module or /dev/zram0 device file not found"
-	echo "$TCID : CONFIG_ZRAM is not set"
-	exit $ksft_skip
-fi
+run_zram
diff --git a/tools/testing/selftests/zram/zram01.sh b/tools/testing/selftests/zram/zram01.sh
index e9e9eb777e2c7..8f4affe34f3e4 100755
--- a/tools/testing/selftests/zram/zram01.sh
+++ b/tools/testing/selftests/zram/zram01.sh
@@ -33,7 +33,7 @@ zram_algs="lzo"
 
 zram_fill_fs()
 {
-	for i in $(seq 0 $(($dev_num - 1))); do
+	for i in $(seq $dev_start $dev_end); do
 		echo "fill zram$i..."
 		local b=0
 		while [ true ]; do
@@ -67,7 +67,6 @@ zram_mount
 
 zram_fill_fs
 zram_cleanup
-zram_unload
 
 if [ $ERR_CODE -ne 0 ]; then
 	echo "$TCID : [FAIL]"
diff --git a/tools/testing/selftests/zram/zram02.sh b/tools/testing/selftests/zram/zram02.sh
index e83b404807c09..2418b0c4ed136 100755
--- a/tools/testing/selftests/zram/zram02.sh
+++ b/tools/testing/selftests/zram/zram02.sh
@@ -36,7 +36,6 @@ zram_set_memlimit
 zram_makeswap
 zram_swapoff
 zram_cleanup
-zram_unload
 
 if [ $ERR_CODE -ne 0 ]; then
 	echo "$TCID : [FAIL]"
diff --git a/tools/testing/selftests/zram/zram_lib.sh b/tools/testing/selftests/zram/zram_lib.sh
index f47fc0f27e99e..21ec1966de76c 100755
--- a/tools/testing/selftests/zram/zram_lib.sh
+++ b/tools/testing/selftests/zram/zram_lib.sh
@@ -5,10 +5,12 @@
 # Author: Alexey Kodanev <alexey.kodanev@oracle.com>
 # Modified: Naresh Kamboju <naresh.kamboju@linaro.org>
 
-MODULE=0
 dev_makeswap=-1
 dev_mounted=-1
-
+dev_start=0
+dev_end=-1
+module_load=-1
+sys_control=-1
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
 kernel_version=`uname -r | cut -d'.' -f1,2`
@@ -46,57 +48,72 @@ zram_cleanup()
 {
 	echo "zram cleanup"
 	local i=
-	for i in $(seq 0 $dev_makeswap); do
+	for i in $(seq $dev_start $dev_makeswap); do
 		swapoff /dev/zram$i
 	done
 
-	for i in $(seq 0 $dev_mounted); do
+	for i in $(seq $dev_start $dev_mounted); do
 		umount /dev/zram$i
 	done
 
-	for i in $(seq 0 $(($dev_num - 1))); do
+	for i in $(seq $dev_start $dev_end); do
 		echo 1 > /sys/block/zram${i}/reset
 		rm -rf zram$i
 	done
 
-}
+	if [ $sys_control -eq 1 ]; then
+		for i in $(seq $dev_start $dev_end); do
+			echo $i > /sys/class/zram-control/hot_remove
+		done
+	fi
 
-zram_unload()
-{
-	if [ $MODULE -ne 0 ] ; then
-		echo "zram rmmod zram"
+	if [ $module_load -eq 1 ]; then
 		rmmod zram > /dev/null 2>&1
 	fi
 }
 
 zram_load()
 {
-	# check zram module exists
-	MODULE_PATH=/lib/modules/`uname -r`/kernel/drivers/block/zram/zram.ko
-	if [ -f $MODULE_PATH ]; then
-		MODULE=1
-		echo "create '$dev_num' zram device(s)"
-		modprobe zram num_devices=$dev_num
-		if [ $? -ne 0 ]; then
-			echo "failed to insert zram module"
-			exit 1
-		fi
-
-		dev_num_created=$(ls /dev/zram* | wc -w)
+	echo "create '$dev_num' zram device(s)"
+
+	# zram module loaded, new kernel
+	if [ -d "/sys/class/zram-control" ]; then
+		echo "zram modules already loaded, kernel supports" \
+			"zram-control interface"
+		dev_start=$(ls /dev/zram* | wc -w)
+		dev_end=$(($dev_start + $dev_num - 1))
+		sys_control=1
+
+		for i in $(seq $dev_start $dev_end); do
+			cat /sys/class/zram-control/hot_add > /dev/null
+		done
+
+		echo "all zram devices (/dev/zram$dev_start~$dev_end" \
+			"successfully created"
+		return 0
+	fi
 
-		if [ "$dev_num_created" -ne "$dev_num" ]; then
-			echo "unexpected num of devices: $dev_num_created"
-			ERR_CODE=-1
+	# detect old kernel or built-in
+	modprobe zram num_devices=$dev_num
+	if [ ! -d "/sys/class/zram-control" ]; then
+		if grep -q '^zram' /proc/modules; then
+			rmmod zram > /dev/null 2>&1
+			if [ $? -ne 0 ]; then
+				echo "zram module is being used on old kernel" \
+					"without zram-control interface"
+				exit $ksft_skip
+			fi
 		else
-			echo "zram load module successful"
+			echo "test needs CONFIG_ZRAM=m on old kernel without" \
+				"zram-control interface"
+			exit $ksft_skip
 		fi
-	elif [ -b /dev/zram0 ]; then
-		echo "/dev/zram0 device file found: OK"
-	else
-		echo "ERROR: No zram.ko module or no /dev/zram0 device found"
-		echo "$TCID : CONFIG_ZRAM is not set"
-		exit 1
+		modprobe zram num_devices=$dev_num
 	fi
+
+	module_load=1
+	dev_end=$(($dev_num - 1))
+	echo "all zram devices (/dev/zram0~$dev_end) successfully created"
 }
 
 zram_max_streams()
@@ -110,7 +127,7 @@ zram_max_streams()
 		return 0
 	fi
 
-	local i=0
+	local i=$dev_start
 	for max_s in $zram_max_streams; do
 		local sys_path="/sys/block/zram${i}/max_comp_streams"
 		echo $max_s > $sys_path || \
@@ -122,7 +139,7 @@ zram_max_streams()
 			echo "FAIL can't set max_streams '$max_s', get $max_stream"
 
 		i=$(($i + 1))
-		echo "$sys_path = '$max_streams' ($i/$dev_num)"
+		echo "$sys_path = '$max_streams'"
 	done
 
 	echo "zram max streams: OK"
@@ -132,15 +149,16 @@ zram_compress_alg()
 {
 	echo "test that we can set compression algorithm"
 
-	local algs=$(cat /sys/block/zram0/comp_algorithm)
+	local i=$dev_start
+	local algs=$(cat /sys/block/zram${i}/comp_algorithm)
 	echo "supported algs: $algs"
-	local i=0
+
 	for alg in $zram_algs; do
 		local sys_path="/sys/block/zram${i}/comp_algorithm"
 		echo "$alg" >	$sys_path || \
 			echo "FAIL can't set '$alg' to $sys_path"
 		i=$(($i + 1))
-		echo "$sys_path = '$alg' ($i/$dev_num)"
+		echo "$sys_path = '$alg'"
 	done
 
 	echo "zram set compression algorithm: OK"
@@ -149,14 +167,14 @@ zram_compress_alg()
 zram_set_disksizes()
 {
 	echo "set disk size to zram device(s)"
-	local i=0
+	local i=$dev_start
 	for ds in $zram_sizes; do
 		local sys_path="/sys/block/zram${i}/disksize"
 		echo "$ds" >	$sys_path || \
 			echo "FAIL can't set '$ds' to $sys_path"
 
 		i=$(($i + 1))
-		echo "$sys_path = '$ds' ($i/$dev_num)"
+		echo "$sys_path = '$ds'"
 	done
 
 	echo "zram set disksizes: OK"
@@ -166,14 +184,14 @@ zram_set_memlimit()
 {
 	echo "set memory limit to zram device(s)"
 
-	local i=0
+	local i=$dev_start
 	for ds in $zram_mem_limits; do
 		local sys_path="/sys/block/zram${i}/mem_limit"
 		echo "$ds" >	$sys_path || \
 			echo "FAIL can't set '$ds' to $sys_path"
 
 		i=$(($i + 1))
-		echo "$sys_path = '$ds' ($i/$dev_num)"
+		echo "$sys_path = '$ds'"
 	done
 
 	echo "zram set memory limit: OK"
@@ -182,8 +200,8 @@ zram_set_memlimit()
 zram_makeswap()
 {
 	echo "make swap with zram device(s)"
-	local i=0
-	for i in $(seq 0 $(($dev_num - 1))); do
+	local i=$dev_start
+	for i in $(seq $dev_start $dev_end); do
 		mkswap /dev/zram$i > err.log 2>&1
 		if [ $? -ne 0 ]; then
 			cat err.log
@@ -206,7 +224,7 @@ zram_makeswap()
 zram_swapoff()
 {
 	local i=
-	for i in $(seq 0 $dev_makeswap); do
+	for i in $(seq $dev_start $dev_end); do
 		swapoff /dev/zram$i > err.log 2>&1
 		if [ $? -ne 0 ]; then
 			cat err.log
@@ -220,7 +238,7 @@ zram_swapoff()
 
 zram_makefs()
 {
-	local i=0
+	local i=$dev_start
 	for fs in $zram_filesystems; do
 		# if requested fs not supported default it to ext2
 		which mkfs.$fs > /dev/null 2>&1 || fs=ext2
@@ -239,7 +257,7 @@ zram_makefs()
 zram_mount()
 {
 	local i=0
-	for i in $(seq 0 $(($dev_num - 1))); do
+	for i in $(seq $dev_start $dev_end); do
 		echo "mount /dev/zram$i"
 		mkdir zram$i
 		mount /dev/zram$i zram$i > /dev/null || \
-- 
GitLab


From 74a30666b4b53bb4b54c2e5eafabde6eb8bf3f55 Mon Sep 17 00:00:00 2001
From: Cristian Marussi <cristian.marussi@arm.com>
Date: Wed, 26 Jan 2022 10:27:21 +0000
Subject: [PATCH 4022/4878] selftests: openat2: Print also errno in failure
 messages

[ Upstream commit e051cdf655fa016692008a446a060eff06222bb5 ]

In E_func() macro, on error, print also errno in order to aid debugging.

Cc: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/openat2/helpers.h | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/openat2/helpers.h b/tools/testing/selftests/openat2/helpers.h
index a6ea27344db2d..ad5d0ba5b6ce9 100644
--- a/tools/testing/selftests/openat2/helpers.h
+++ b/tools/testing/selftests/openat2/helpers.h
@@ -62,11 +62,12 @@ bool needs_openat2(const struct open_how *how);
 					(similar to chroot(2)). */
 #endif /* RESOLVE_IN_ROOT */
 
-#define E_func(func, ...)						\
-	do {								\
-		if (func(__VA_ARGS__) < 0)				\
-			ksft_exit_fail_msg("%s:%d %s failed\n", \
-					   __FILE__, __LINE__, #func);\
+#define E_func(func, ...)						      \
+	do {								      \
+		errno = 0;						      \
+		if (func(__VA_ARGS__) < 0)				      \
+			ksft_exit_fail_msg("%s:%d %s failed - errno:%d\n",    \
+					   __FILE__, __LINE__, #func, errno); \
 	} while (0)
 
 #define E_asprintf(...)		E_func(asprintf,	__VA_ARGS__)
-- 
GitLab


From 2be48bfac71313d26293301ebeb5b33da24c13f7 Mon Sep 17 00:00:00 2001
From: Cristian Marussi <cristian.marussi@arm.com>
Date: Wed, 26 Jan 2022 10:27:22 +0000
Subject: [PATCH 4023/4878] selftests: openat2: Add missing dependency in
 Makefile

[ Upstream commit ea3396725aa143dd42fe388cb67e44c90d2fb719 ]

Add a dependency on header helpers.h to the main target; while at that add
to helpers.h also a missing include for bool types.

Cc: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/openat2/Makefile  | 2 +-
 tools/testing/selftests/openat2/helpers.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/openat2/Makefile b/tools/testing/selftests/openat2/Makefile
index 4b93b1417b862..843ba56d8e49e 100644
--- a/tools/testing/selftests/openat2/Makefile
+++ b/tools/testing/selftests/openat2/Makefile
@@ -5,4 +5,4 @@ TEST_GEN_PROGS := openat2_test resolve_test rename_attack_test
 
 include ../lib.mk
 
-$(TEST_GEN_PROGS): helpers.c
+$(TEST_GEN_PROGS): helpers.c helpers.h
diff --git a/tools/testing/selftests/openat2/helpers.h b/tools/testing/selftests/openat2/helpers.h
index ad5d0ba5b6ce9..7056340b9339e 100644
--- a/tools/testing/selftests/openat2/helpers.h
+++ b/tools/testing/selftests/openat2/helpers.h
@@ -9,6 +9,7 @@
 
 #define _GNU_SOURCE
 #include <stdint.h>
+#include <stdbool.h>
 #include <errno.h>
 #include <linux/types.h>
 #include "../kselftest.h"
-- 
GitLab


From 204a2390da42759da2b5bc42c40878609f3c329b Mon Sep 17 00:00:00 2001
From: Cristian Marussi <cristian.marussi@arm.com>
Date: Wed, 26 Jan 2022 10:27:23 +0000
Subject: [PATCH 4024/4878] selftests: openat2: Skip testcases that fail with
 EOPNOTSUPP

[ Upstream commit ac9e0a250bb155078601a5b999aab05f2a04d1ab ]

Skip testcases that fail since the requested valid flags combination is not
supported by the underlying filesystem.

Cc: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/openat2/openat2_test.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c
index b386367c606b1..453152b58e7f0 100644
--- a/tools/testing/selftests/openat2/openat2_test.c
+++ b/tools/testing/selftests/openat2/openat2_test.c
@@ -244,6 +244,16 @@ void test_openat2_flags(void)
 		unlink(path);
 
 		fd = sys_openat2(AT_FDCWD, path, &test->how);
+		if (fd < 0 && fd == -EOPNOTSUPP) {
+			/*
+			 * Skip the testcase if it failed because not supported
+			 * by FS. (e.g. a valid O_TMPFILE combination on NFS)
+			 */
+			ksft_test_result_skip("openat2 with %s fails with %d (%s)\n",
+					      test->name, fd, strerror(-fd));
+			goto next;
+		}
+
 		if (test->err >= 0)
 			failed = (fd < 0);
 		else
@@ -288,7 +298,7 @@ skip:
 		else
 			resultfn("openat2 with %s fails with %d (%s)\n",
 				 test->name, test->err, strerror(-test->err));
-
+next:
 		free(fdpath);
 		fflush(stdout);
 	}
-- 
GitLab


From 139fce2992ee88528714a56aaee7c45dd1ec7f7a Mon Sep 17 00:00:00 2001
From: Cristian Marussi <cristian.marussi@arm.com>
Date: Wed, 26 Jan 2022 10:27:19 +0000
Subject: [PATCH 4025/4878] selftests: skip mincore.check_file_mmap when fs
 lacks needed support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit dae1d8ac31896988e7313384c0370176a75e9b45 ]

Report mincore.check_file_mmap as SKIP instead of FAIL if the underlying
filesystem lacks support of O_TMPFILE or fallocate since such failures
are not really related to mincore functionality.

Cc: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/mincore/mincore_selftest.c      | 20 +++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/mincore/mincore_selftest.c b/tools/testing/selftests/mincore/mincore_selftest.c
index 5a1e85ff5d32a..2cf6f2f277ab8 100644
--- a/tools/testing/selftests/mincore/mincore_selftest.c
+++ b/tools/testing/selftests/mincore/mincore_selftest.c
@@ -208,15 +208,21 @@ TEST(check_file_mmap)
 
 	errno = 0;
 	fd = open(".", O_TMPFILE | O_RDWR, 0600);
-	ASSERT_NE(-1, fd) {
-		TH_LOG("Can't create temporary file: %s",
-			strerror(errno));
+	if (fd < 0) {
+		ASSERT_EQ(errno, EOPNOTSUPP) {
+			TH_LOG("Can't create temporary file: %s",
+			       strerror(errno));
+		}
+		SKIP(goto out_free, "O_TMPFILE not supported by filesystem.");
 	}
 	errno = 0;
 	retval = fallocate(fd, 0, 0, FILE_SIZE);
-	ASSERT_EQ(0, retval) {
-		TH_LOG("Error allocating space for the temporary file: %s",
-			strerror(errno));
+	if (retval) {
+		ASSERT_EQ(errno, EOPNOTSUPP) {
+			TH_LOG("Error allocating space for the temporary file: %s",
+			       strerror(errno));
+		}
+		SKIP(goto out_close, "fallocate not supported by filesystem.");
 	}
 
 	/*
@@ -272,7 +278,9 @@ TEST(check_file_mmap)
 	}
 
 	munmap(addr, FILE_SIZE);
+out_close:
 	close(fd);
+out_free:
 	free(vec);
 }
 
-- 
GitLab


From b9a229fd48bfa45edb954c75a57e3931a3da6c5f Mon Sep 17 00:00:00 2001
From: Duoming Zhou <duoming@zju.edu.cn>
Date: Fri, 28 Jan 2022 12:47:15 +0800
Subject: [PATCH 4026/4878] ax25: improve the incomplete fix to avoid UAF and
 NPD bugs

[ Upstream commit 4e0f718daf97d47cf7dec122da1be970f145c809 ]

The previous commit 1ade48d0c27d ("ax25: NPD bug when detaching
AX25 device") introduce lock_sock() into ax25_kill_by_device to
prevent NPD bug. But the concurrency NPD or UAF bug will occur,
when lock_sock() or release_sock() dereferences the ax25_cb->sock.

The NULL pointer dereference bug can be shown as below:

ax25_kill_by_device()        | ax25_release()
                             |   ax25_destroy_socket()
                             |     ax25_cb_del()
  ...                        |     ...
                             |     ax25->sk=NULL;
  lock_sock(s->sk); //(1)    |
  s->ax25_dev = NULL;        |     ...
  release_sock(s->sk); //(2) |
  ...                        |

The root cause is that the sock is set to null before dereference
site (1) or (2). Therefore, this patch extracts the ax25_cb->sock
in advance, and uses ax25_list_lock to protect it, which can synchronize
with ax25_cb_del() and ensure the value of sock is not null before
dereference sites.

The concurrency UAF bug can be shown as below:

ax25_kill_by_device()        | ax25_release()
                             |   ax25_destroy_socket()
  ...                        |   ...
                             |   sock_put(sk); //FREE
  lock_sock(s->sk); //(1)    |
  s->ax25_dev = NULL;        |   ...
  release_sock(s->sk); //(2) |
  ...                        |

The root cause is that the sock is released before dereference
site (1) or (2). Therefore, this patch uses sock_hold() to increase
the refcount of sock and uses ax25_list_lock to protect it, which
can synchronize with ax25_cb_del() in ax25_destroy_socket() and
ensure the sock wil not be released before dereference sites.

Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ax25/af_ax25.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 5e84dce5ff7ae..23bd26057a828 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -77,6 +77,7 @@ static void ax25_kill_by_device(struct net_device *dev)
 {
 	ax25_dev *ax25_dev;
 	ax25_cb *s;
+	struct sock *sk;
 
 	if ((ax25_dev = ax25_dev_ax25dev(dev)) == NULL)
 		return;
@@ -85,13 +86,15 @@ static void ax25_kill_by_device(struct net_device *dev)
 again:
 	ax25_for_each(s, &ax25_list) {
 		if (s->ax25_dev == ax25_dev) {
+			sk = s->sk;
+			sock_hold(sk);
 			spin_unlock_bh(&ax25_list_lock);
-			lock_sock(s->sk);
+			lock_sock(sk);
 			s->ax25_dev = NULL;
-			release_sock(s->sk);
+			release_sock(sk);
 			ax25_disconnect(s, ENETUNREACH);
 			spin_lock_bh(&ax25_list_lock);
-
+			sock_put(sk);
 			/* The entry could have been deleted from the
 			 * list meanwhile and thus the next pointer is
 			 * no longer valid.  Play it safe and restart
-- 
GitLab


From c405640aad56e8e203b18beea0d0e7b9efc4eaab Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Sun, 30 Jan 2022 08:53:16 -0800
Subject: [PATCH 4027/4878] vfs: make freeze_super abort when sync_filesystem
 returns error

[ Upstream commit 2719c7160dcfaae1f73a1c0c210ad3281c19022e ]

If we fail to synchronize the filesystem while preparing to freeze the
fs, abort the freeze.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/super.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/fs/super.c b/fs/super.c
index 20f1707807bbd..bae3fe80f852e 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1667,11 +1667,9 @@ static void lockdep_sb_freeze_acquire(struct super_block *sb)
 		percpu_rwsem_acquire(sb->s_writers.rw_sem + level, 0, _THIS_IP_);
 }
 
-static void sb_freeze_unlock(struct super_block *sb)
+static void sb_freeze_unlock(struct super_block *sb, int level)
 {
-	int level;
-
-	for (level = SB_FREEZE_LEVELS - 1; level >= 0; level--)
+	for (level--; level >= 0; level--)
 		percpu_up_write(sb->s_writers.rw_sem + level);
 }
 
@@ -1742,7 +1740,14 @@ int freeze_super(struct super_block *sb)
 	sb_wait_write(sb, SB_FREEZE_PAGEFAULT);
 
 	/* All writers are done so after syncing there won't be dirty data */
-	sync_filesystem(sb);
+	ret = sync_filesystem(sb);
+	if (ret) {
+		sb->s_writers.frozen = SB_UNFROZEN;
+		sb_freeze_unlock(sb, SB_FREEZE_PAGEFAULT);
+		wake_up(&sb->s_writers.wait_unfrozen);
+		deactivate_locked_super(sb);
+		return ret;
+	}
 
 	/* Now wait for internal filesystem counter */
 	sb->s_writers.frozen = SB_FREEZE_FS;
@@ -1754,7 +1759,7 @@ int freeze_super(struct super_block *sb)
 			printk(KERN_ERR
 				"VFS:Filesystem freeze failed\n");
 			sb->s_writers.frozen = SB_UNFROZEN;
-			sb_freeze_unlock(sb);
+			sb_freeze_unlock(sb, SB_FREEZE_FS);
 			wake_up(&sb->s_writers.wait_unfrozen);
 			deactivate_locked_super(sb);
 			return ret;
@@ -1805,7 +1810,7 @@ static int thaw_super_locked(struct super_block *sb)
 	}
 
 	sb->s_writers.frozen = SB_UNFROZEN;
-	sb_freeze_unlock(sb);
+	sb_freeze_unlock(sb, SB_FREEZE_FS);
 out:
 	wake_up(&sb->s_writers.wait_unfrozen);
 	deactivate_locked_super(sb);
-- 
GitLab


From 1e73f5cfc160d0f04b8e40d40fe23004f54e1f52 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Sun, 30 Jan 2022 08:53:16 -0800
Subject: [PATCH 4028/4878] quota: make dquot_quota_sync return errors from
 ->sync_fs

[ Upstream commit dd5532a4994bfda0386eb2286ec00758cee08444 ]

Strangely, dquot_quota_sync ignores the return code from the ->sync_fs
call, which means that quotacalls like Q_SYNC never see the error.  This
doesn't seem right, so fix that.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/quota/dquot.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 4f13734637660..09fb8459bb5ce 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -692,9 +692,14 @@ int dquot_quota_sync(struct super_block *sb, int type)
 	/* This is not very clever (and fast) but currently I don't know about
 	 * any other simple way of getting quota data to disk and we must get
 	 * them there for userspace to be visible... */
-	if (sb->s_op->sync_fs)
-		sb->s_op->sync_fs(sb, 1);
-	sync_blockdev(sb->s_bdev);
+	if (sb->s_op->sync_fs) {
+		ret = sb->s_op->sync_fs(sb, 1);
+		if (ret)
+			return ret;
+	}
+	ret = sync_blockdev(sb->s_bdev);
+	if (ret)
+		return ret;
 
 	/*
 	 * Now when everything is written we can discard the pagecache so
-- 
GitLab


From d872e7b5fe38f325f5206b6872746fa02c2b4819 Mon Sep 17 00:00:00 2001
From: John Garry <john.garry@huawei.com>
Date: Thu, 27 Jan 2022 21:12:51 +0800
Subject: [PATCH 4029/4878] scsi: pm8001: Fix use-after-free for aborted TMF
 sas_task

[ Upstream commit 61f162aa4381845acbdc7f2be4dfb694d027c018 ]

Currently a use-after-free may occur if a TMF sas_task is aborted before we
handle the IO completion in mpi_ssp_completion(). The abort occurs due to
timeout.

When the timeout occurs, the SAS_TASK_STATE_ABORTED flag is set and the
sas_task is freed in pm8001_exec_internal_tmf_task().

However, if the I/O completion occurs later, the I/O completion still
thinks that the sas_task is available. Fix this by clearing the ccb->task
if the TMF times out - the I/O completion handler does nothing if this
pointer is cleared.

Link: https://lore.kernel.org/r/1643289172-165636-3-git-send-email-john.garry@huawei.com
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm8001_sas.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index c3bb58885033b..75ac4d86d9c4b 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -753,8 +753,13 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
 		res = -TMF_RESP_FUNC_FAILED;
 		/* Even TMF timed out, return direct. */
 		if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
+			struct pm8001_ccb_info *ccb = task->lldd_task;
+
 			pm8001_dbg(pm8001_ha, FAIL, "TMF task[%x]timeout.\n",
 				   tmf->tmf);
+
+			if (ccb)
+				ccb->task = NULL;
 			goto ex_err;
 		}
 
-- 
GitLab


From fe9ac3eaa2e387a5742b380b73a5a6bc237bf184 Mon Sep 17 00:00:00 2001
From: John Garry <john.garry@huawei.com>
Date: Thu, 27 Jan 2022 21:12:52 +0800
Subject: [PATCH 4030/4878] scsi: pm8001: Fix use-after-free for aborted
 SSP/STP sas_task

[ Upstream commit df7abcaa1246e2537ab4016077b5443bb3c09378 ]

Currently a use-after-free may occur if a sas_task is aborted by the upper
layer before we handle the I/O completion in mpi_ssp_completion() or
mpi_sata_completion().

In this case, the following are the two steps in handling those I/O
completions:

 - Call complete() to inform the upper layer handler of completion of
   the I/O.

 - Release driver resources associated with the sas_task in
   pm8001_ccb_task_free() call.

When complete() is called, the upper layer may free the sas_task. As such,
we should not touch the associated sas_task afterwards, but we do so in the
pm8001_ccb_task_free() call.

Fix by swapping the complete() and pm8001_ccb_task_free() calls ordering.

Link: https://lore.kernel.org/r/1643289172-165636-4-git-send-email-john.garry@huawei.com
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index b22a8ab754faa..2a3ce4680734b 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2133,9 +2133,9 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
 		pm8001_dbg(pm8001_ha, FAIL,
 			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
 			   t, status, ts->resp, ts->stat);
+		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
 		if (t->slow_task)
 			complete(&t->slow_task->completion);
-		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
 	} else {
 		spin_unlock_irqrestore(&t->task_state_lock, flags);
 		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
@@ -2726,9 +2726,9 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 		pm8001_dbg(pm8001_ha, FAIL,
 			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
 			   t, status, ts->resp, ts->stat);
+		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
 		if (t->slow_task)
 			complete(&t->slow_task->completion);
-		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
 	} else {
 		spin_unlock_irqrestore(&t->task_state_lock, flags);
 		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
-- 
GitLab


From 0ead57ceb21bbf15963b4874c2ac67143455382f Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagi@grimberg.me>
Date: Tue, 1 Feb 2022 14:54:19 +0200
Subject: [PATCH 4031/4878] nvme: fix a possible use-after-free in controller
 reset during load

[ Upstream commit 0fa0f99fc84e41057cbdd2efbfe91c6b2f47dd9d ]

Unlike .queue_rq, in .submit_async_event drivers may not check the ctrl
readiness for AER submission. This may lead to a use-after-free
condition that was observed with nvme-tcp.

The race condition may happen in the following scenario:
1. driver executes its reset_ctrl_work
2. -> nvme_stop_ctrl - flushes ctrl async_event_work
3. ctrl sends AEN which is received by the host, which in turn
   schedules AEN handling
4. teardown admin queue (which releases the queue socket)
5. AEN processed, submits another AER, calling the driver to submit
6. driver attempts to send the cmd
==> use-after-free

In order to fix that, add ctrl state check to validate the ctrl
is actually able to accept the AER submission.

This addresses the above race in controller resets because the driver
during teardown should:
1. change ctrl state to RESETTING
2. flush async_event_work (as well as other async work elements)

So after 1,2, any other AER command will find the
ctrl state to be RESETTING and bail out without submitting the AER.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/core.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 99b5152482fe4..71c85c99e86c6 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4259,7 +4259,14 @@ static void nvme_async_event_work(struct work_struct *work)
 		container_of(work, struct nvme_ctrl, async_event_work);
 
 	nvme_aen_uevent(ctrl);
-	ctrl->ops->submit_async_event(ctrl);
+
+	/*
+	 * The transport drivers must guarantee AER submission here is safe by
+	 * flushing ctrl async_event_work after changing the controller state
+	 * from LIVE and before freeing the admin queue.
+	*/
+	if (ctrl->state == NVME_CTRL_LIVE)
+		ctrl->ops->submit_async_event(ctrl);
 }
 
 static bool nvme_ctrl_pp_status(struct nvme_ctrl *ctrl)
-- 
GitLab


From e192184cf8bce8dd55d619f5611a2eaba996fa05 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagi@grimberg.me>
Date: Tue, 1 Feb 2022 14:54:20 +0200
Subject: [PATCH 4032/4878] nvme-tcp: fix possible use-after-free in transport
 error_recovery work

[ Upstream commit ff9fc7ebf5c06de1ef72a69f9b1ab40af8b07f9e ]

While nvme_tcp_submit_async_event_work is checking the ctrl and queue
state before preparing the AER command and scheduling io_work, in order
to fully prevent a race where this check is not reliable the error
recovery work must flush async_event_work before continuing to destroy
the admin queue after setting the ctrl state to RESETTING such that
there is no race .submit_async_event and the error recovery handler
itself changing the ctrl state.

Tested-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/tcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index 662028d7a1c6a..6105894a218a5 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -2077,6 +2077,7 @@ static void nvme_tcp_error_recovery_work(struct work_struct *work)
 	struct nvme_ctrl *ctrl = &tcp_ctrl->ctrl;
 
 	nvme_stop_keep_alive(ctrl);
+	flush_work(&ctrl->async_event_work);
 	nvme_tcp_teardown_io_queues(ctrl, false);
 	/* unquiesce to fail fast pending requests */
 	nvme_start_queues(ctrl);
-- 
GitLab


From 324f5bdc52ecb6a6dadb31a62823ef8c709d1439 Mon Sep 17 00:00:00 2001
From: Sagi Grimberg <sagi@grimberg.me>
Date: Tue, 1 Feb 2022 14:54:21 +0200
Subject: [PATCH 4033/4878] nvme-rdma: fix possible use-after-free in transport
 error_recovery work

[ Upstream commit b6bb1722f34bbdbabed27acdceaf585d300c5fd2 ]

While nvme_rdma_submit_async_event_work is checking the ctrl and queue
state before preparing the AER command and scheduling io_work, in order
to fully prevent a race where this check is not reliable the error
recovery work must flush async_event_work before continuing to destroy
the admin queue after setting the ctrl state to RESETTING such that
there is no race .submit_async_event and the error recovery handler
itself changing the ctrl state.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/rdma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 1b90563818434..8eacc9bd58f5a 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1200,6 +1200,7 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work)
 			struct nvme_rdma_ctrl, err_work);
 
 	nvme_stop_keep_alive(&ctrl->ctrl);
+	flush_work(&ctrl->ctrl.async_event_work);
 	nvme_rdma_teardown_io_queues(ctrl, false);
 	nvme_start_queues(&ctrl->ctrl);
 	nvme_rdma_teardown_admin_queue(ctrl, false);
-- 
GitLab


From e76d0a9692c51d231d9d3a8cd0892c7c885351f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 28 Jan 2022 13:21:10 +0100
Subject: [PATCH 4034/4878] drm/amdgpu: fix logic inversion in check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit e8ae38720e1a685fd98cfa5ae118c9d07b45ca79 ]

We probably never trigger this, but the logic inside the check is
inverted.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 5207ad654f18e..0b162928a248b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2120,7 +2120,7 @@ int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset,
 	unsigned i;
 	int r;
 
-	if (direct_submit && !ring->sched.ready) {
+	if (!direct_submit && !ring->sched.ready) {
 		DRM_ERROR("Trying to move memory with ring turned off.\n");
 		return -EINVAL;
 	}
-- 
GitLab


From 3c958dbcba1862050db73a5340b02d52fa9cc917 Mon Sep 17 00:00:00 2001
From: Jan Beulich <jbeulich@suse.com>
Date: Tue, 1 Feb 2022 11:57:16 +0100
Subject: [PATCH 4035/4878] x86/Xen: streamline (and fix) PV CPU enumeration

[ Upstream commit e25a8d959992f61b64a58fc62fb7951dc6f31d1f ]

This started out with me noticing that "dom0_max_vcpus=<N>" with <N>
larger than the number of physical CPUs reported through ACPI tables
would not bring up the "excess" vCPU-s. Addressing this is the primary
purpose of the change; CPU maps handling is being tidied only as far as
is necessary for the change here (with the effect of also avoiding the
setting up of too much per-CPU infrastructure, i.e. for CPUs which can
never come online).

Noticing that xen_fill_possible_map() is called way too early, whereas
xen_filter_cpu_maps() is called too late (after per-CPU areas were
already set up), and further observing that each of the functions serves
only one of Dom0 or DomU, it looked like it was better to simplify this.
Use the .get_smp_config hook instead, uniformly for Dom0 and DomU.
xen_fill_possible_map() can be dropped altogether, while
xen_filter_cpu_maps() is re-purposed but not otherwise changed.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/2dbd5f0a-9859-ca2d-085e-a02f7166c610@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/xen/enlighten_pv.c |  4 ----
 arch/x86/xen/smp_pv.c       | 26 ++++++--------------------
 2 files changed, 6 insertions(+), 24 deletions(-)

diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index 16ff25d6935e7..804c65d2b95f3 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1387,10 +1387,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
 
 		xen_acpi_sleep_register();
 
-		/* Avoid searching for BIOS MP tables */
-		x86_init.mpparse.find_smp_config = x86_init_noop;
-		x86_init.mpparse.get_smp_config = x86_init_uint_noop;
-
 		xen_boot_params_init_edd();
 
 #ifdef CONFIG_ACPI
diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c
index c2ac319f11a4b..8f9e7e2407c87 100644
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -149,28 +149,12 @@ int xen_smp_intr_init_pv(unsigned int cpu)
 	return rc;
 }
 
-static void __init xen_fill_possible_map(void)
-{
-	int i, rc;
-
-	if (xen_initial_domain())
-		return;
-
-	for (i = 0; i < nr_cpu_ids; i++) {
-		rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
-		if (rc >= 0) {
-			num_processors++;
-			set_cpu_possible(i, true);
-		}
-	}
-}
-
-static void __init xen_filter_cpu_maps(void)
+static void __init _get_smp_config(unsigned int early)
 {
 	int i, rc;
 	unsigned int subtract = 0;
 
-	if (!xen_initial_domain())
+	if (early)
 		return;
 
 	num_processors = 0;
@@ -211,7 +195,6 @@ static void __init xen_pv_smp_prepare_boot_cpu(void)
 		 * sure the old memory can be recycled. */
 		make_lowmem_page_readwrite(xen_initial_gdt);
 
-	xen_filter_cpu_maps();
 	xen_setup_vcpu_info_placement();
 
 	/*
@@ -491,5 +474,8 @@ static const struct smp_ops xen_smp_ops __initconst = {
 void __init xen_smp_init(void)
 {
 	smp_ops = xen_smp_ops;
-	xen_fill_possible_map();
+
+	/* Avoid searching for BIOS MP tables */
+	x86_init.mpparse.find_smp_config = x86_init_noop;
+	x86_init.mpparse.get_smp_config = _get_smp_config;
 }
-- 
GitLab


From de55891e162cac0ae058e05c2527fd32cc435ac0 Mon Sep 17 00:00:00 2001
From: Igor Pylypiv <ipylypiv@google.com>
Date: Thu, 27 Jan 2022 15:39:53 -0800
Subject: [PATCH 4036/4878] Revert "module, async: async_synchronize_full() on
 module init iff async is used"

[ Upstream commit 67d6212afda218d564890d1674bab28e8612170f ]

This reverts commit 774a1221e862b343388347bac9b318767336b20b.

We need to finish all async code before the module init sequence is
done.  In the reverted commit the PF_USED_ASYNC flag was added to mark a
thread that called async_schedule().  Then the PF_USED_ASYNC flag was
used to determine whether or not async_synchronize_full() needs to be
invoked.  This works when modprobe thread is calling async_schedule(),
but it does not work if module dispatches init code to a worker thread
which then calls async_schedule().

For example, PCI driver probing is invoked from a worker thread based on
a node where device is attached:

	if (cpu < nr_cpu_ids)
		error = work_on_cpu(cpu, local_pci_probe, &ddi);
	else
		error = local_pci_probe(&ddi);

We end up in a situation where a worker thread gets the PF_USED_ASYNC
flag set instead of the modprobe thread.  As a result,
async_synchronize_full() is not invoked and modprobe completes without
waiting for the async code to finish.

The issue was discovered while loading the pm80xx driver:
(scsi_mod.scan=async)

modprobe pm80xx                      worker
...
  do_init_module()
  ...
    pci_call_probe()
      work_on_cpu(local_pci_probe)
                                     local_pci_probe()
                                       pm8001_pci_probe()
                                         scsi_scan_host()
                                           async_schedule()
                                           worker->flags |= PF_USED_ASYNC;
                                     ...
      < return from worker >
  ...
  if (current->flags & PF_USED_ASYNC) <--- false
  	async_synchronize_full();

Commit 21c3c5d28007 ("block: don't request module during elevator init")
fixed the deadlock issue which the reverted commit 774a1221e862
("module, async: async_synchronize_full() on module init iff async is
used") tried to fix.

Since commit 0fdff3ec6d87 ("async, kmod: warn on synchronous
request_module() from async workers") synchronous module loading from
async is not allowed.

Given that the original deadlock issue is fixed and it is no longer
allowed to call synchronous request_module() from async we can remove
PF_USED_ASYNC flag to make module init consistently invoke
async_synchronize_full() unless async module probe is requested.

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Reviewed-by: Changyuan Lyu <changyuanl@google.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sched.h |  1 -
 kernel/async.c        |  3 ---
 kernel/module.c       | 25 +++++--------------------
 3 files changed, 5 insertions(+), 24 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index b85b26d9ccefe..f996d1f343bb7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1544,7 +1544,6 @@ extern struct pid *cad_pid;
 #define PF_MEMALLOC		0x00000800	/* Allocating memory */
 #define PF_NPROC_EXCEEDED	0x00001000	/* set_user() noticed that RLIMIT_NPROC was exceeded */
 #define PF_USED_MATH		0x00002000	/* If unset the fpu must be initialized before use */
-#define PF_USED_ASYNC		0x00004000	/* Used async_schedule*(), used by module init */
 #define PF_NOFREEZE		0x00008000	/* This thread should not be frozen */
 #define PF_FROZEN		0x00010000	/* Frozen for system suspend */
 #define PF_KSWAPD		0x00020000	/* I am kswapd */
diff --git a/kernel/async.c b/kernel/async.c
index 33258e6e20f83..1746cd65e271b 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -205,9 +205,6 @@ async_cookie_t async_schedule_node_domain(async_func_t func, void *data,
 	atomic_inc(&entry_count);
 	spin_unlock_irqrestore(&async_lock, flags);
 
-	/* mark that this task has queued an async job, used by module init */
-	current->flags |= PF_USED_ASYNC;
-
 	/* schedule for execution */
 	queue_work_node(node, system_unbound_wq, &entry->work);
 
diff --git a/kernel/module.c b/kernel/module.c
index 185b2655bc206..5f4403198f04b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3714,12 +3714,6 @@ static noinline int do_init_module(struct module *mod)
 	}
 	freeinit->module_init = mod->init_layout.base;
 
-	/*
-	 * We want to find out whether @mod uses async during init.  Clear
-	 * PF_USED_ASYNC.  async_schedule*() will set it.
-	 */
-	current->flags &= ~PF_USED_ASYNC;
-
 	do_mod_ctors(mod);
 	/* Start the module */
 	if (mod->init != NULL)
@@ -3745,22 +3739,13 @@ static noinline int do_init_module(struct module *mod)
 
 	/*
 	 * We need to finish all async code before the module init sequence
-	 * is done.  This has potential to deadlock.  For example, a newly
-	 * detected block device can trigger request_module() of the
-	 * default iosched from async probing task.  Once userland helper
-	 * reaches here, async_synchronize_full() will wait on the async
-	 * task waiting on request_module() and deadlock.
-	 *
-	 * This deadlock is avoided by perfomring async_synchronize_full()
-	 * iff module init queued any async jobs.  This isn't a full
-	 * solution as it will deadlock the same if module loading from
-	 * async jobs nests more than once; however, due to the various
-	 * constraints, this hack seems to be the best option for now.
-	 * Please refer to the following thread for details.
+	 * is done. This has potential to deadlock if synchronous module
+	 * loading is requested from async (which is not allowed!).
 	 *
-	 * http://thread.gmane.org/gmane.linux.kernel/1420814
+	 * See commit 0fdff3ec6d87 ("async, kmod: warn on synchronous
+	 * request_module() from async workers") for more details.
 	 */
-	if (!mod->async_probe_requested && (current->flags & PF_USED_ASYNC))
+	if (!mod->async_probe_requested)
 		async_synchronize_full();
 
 	ftrace_free_mem(mod, mod->init_layout.base, mod->init_layout.base +
-- 
GitLab


From 143aaf79bafa9839cabebd49aa10b36f8aaef3ce Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Thu, 3 Feb 2022 12:17:54 -0800
Subject: [PATCH 4037/4878] gcc-plugins/stackleak: Use noinstr in favor of
 notrace

[ Upstream commit dcb85f85fa6f142aae1fe86f399d4503d49f2b60 ]

While the stackleak plugin was already using notrace, objtool is now a
bit more picky.  Update the notrace uses to noinstr.  Silences the
following objtool warnings when building with:

CONFIG_DEBUG_ENTRY=y
CONFIG_STACK_VALIDATION=y
CONFIG_VMLINUX_VALIDATION=y
CONFIG_GCC_PLUGIN_STACKLEAK=y

  vmlinux.o: warning: objtool: do_syscall_64()+0x9: call to stackleak_track_stack() leaves .noinstr.text section
  vmlinux.o: warning: objtool: do_int80_syscall_32()+0x9: call to stackleak_track_stack() leaves .noinstr.text section
  vmlinux.o: warning: objtool: exc_general_protection()+0x22: call to stackleak_track_stack() leaves .noinstr.text section
  vmlinux.o: warning: objtool: fixup_bad_iret()+0x20: call to stackleak_track_stack() leaves .noinstr.text section
  vmlinux.o: warning: objtool: do_machine_check()+0x27: call to stackleak_track_stack() leaves .noinstr.text section
  vmlinux.o: warning: objtool: .text+0x5346e: call to stackleak_erase() leaves .noinstr.text section
  vmlinux.o: warning: objtool: .entry.text+0x143: call to stackleak_erase() leaves .noinstr.text section
  vmlinux.o: warning: objtool: .entry.text+0x10eb: call to stackleak_erase() leaves .noinstr.text section
  vmlinux.o: warning: objtool: .entry.text+0x17f9: call to stackleak_erase() leaves .noinstr.text section

Note that the plugin's addition of calls to stackleak_track_stack() from
noinstr functions is expected to be safe, as it isn't runtime
instrumentation and is self-contained.

Cc: Alexander Popov <alex.popov@linux.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/stackleak.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/stackleak.c b/kernel/stackleak.c
index ce161a8e8d975..dd07239ddff9f 100644
--- a/kernel/stackleak.c
+++ b/kernel/stackleak.c
@@ -48,7 +48,7 @@ int stack_erasing_sysctl(struct ctl_table *table, int write,
 #define skip_erasing()	false
 #endif /* CONFIG_STACKLEAK_RUNTIME_DISABLE */
 
-asmlinkage void notrace stackleak_erase(void)
+asmlinkage void noinstr stackleak_erase(void)
 {
 	/* It would be nice not to have 'kstack_ptr' and 'boundary' on stack */
 	unsigned long kstack_ptr = current->lowest_stack;
@@ -102,9 +102,8 @@ asmlinkage void notrace stackleak_erase(void)
 	/* Reset the 'lowest_stack' value for the next syscall */
 	current->lowest_stack = current_top_of_stack() - THREAD_SIZE/64;
 }
-NOKPROBE_SYMBOL(stackleak_erase);
 
-void __used __no_caller_saved_registers notrace stackleak_track_stack(void)
+void __used __no_caller_saved_registers noinstr stackleak_track_stack(void)
 {
 	unsigned long sp = current_stack_pointer;
 
-- 
GitLab


From 45102b538a9e0b244ede1007fd8dcc1a0d9a0627 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Fri, 28 Jan 2022 23:44:03 +0100
Subject: [PATCH 4038/4878] random: wake up /dev/random writers after zap

[ Upstream commit 042e293e16e3aa9794ce60c29f5b7b0c8170f933 ]

When account() is called, and the amount of entropy dips below
random_write_wakeup_bits, we wake up the random writers, so that they
can write some more in. However, the RNDZAPENTCNT/RNDCLEARPOOL ioctl
sets the entropy count to zero -- a potential reduction just like
account() -- but does not unblock writers. This commit adds the missing
logic to that ioctl to unblock waiting writers.

Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/random.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 5444206f35e22..5f541c9465598 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1987,7 +1987,10 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 		 */
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		input_pool.entropy_count = 0;
+		if (xchg(&input_pool.entropy_count, 0) && random_write_wakeup_bits) {
+			wake_up_interruptible(&random_write_wait);
+			kill_fasync(&fasync, SIGIO, POLL_OUT);
+		}
 		return 0;
 	case RNDRESEEDCRNG:
 		if (!capable(CAP_SYS_ADMIN))
-- 
GitLab


From 8b53e5f737bcf64226298c16c3920e7f0807ab94 Mon Sep 17 00:00:00 2001
From: Sami Tolvanen <samitolvanen@google.com>
Date: Fri, 11 Dec 2020 10:46:22 -0800
Subject: [PATCH 4039/4878] kbuild: lto: merge module sections

commit dd2776222abb9893e5b5c237a2c8c880d8854cee upstream.

LLD always splits sections with LTO, which increases module sizes. This
change adds linker script rules to merge the split sections in the final
module.

Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201211184633.3213045-6-samitolvanen@google.com
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/module.lds.S | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index 69b9b71a6a473..18d5b84236350 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -23,6 +23,30 @@ SECTIONS {
 	.init_array		0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
 
 	__jump_table		0 : ALIGN(8) { KEEP(*(__jump_table)) }
+
+	__patchable_function_entries : { *(__patchable_function_entries) }
+
+	/*
+	 * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
+	 * -ffunction-sections, which increases the size of the final module.
+	 * Merge the split sections in the final binary.
+	 */
+	.bss : {
+		*(.bss .bss.[0-9a-zA-Z_]*)
+		*(.bss..L*)
+	}
+
+	.data : {
+		*(.data .data.[0-9a-zA-Z_]*)
+		*(.data..L*)
+	}
+
+	.rodata : {
+		*(.rodata .rodata.[0-9a-zA-Z_]*)
+		*(.rodata..L*)
+	}
+
+	.text : { *(.text .text.[0-9a-zA-Z_]*) }
 }
 
 /* bring in arch-specific sections */
-- 
GitLab


From 44b81136e86849117f34a083c359e4860662b3be Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Mon, 22 Mar 2021 16:44:38 -0700
Subject: [PATCH 4040/4878] kbuild: lto: Merge module sections if and only if
 CONFIG_LTO_CLANG is enabled

commit 6a3193cdd5e5b96ac65f04ee42555c216da332af upstream.

Merge module sections only when using Clang LTO. With ld.bfd, merging
sections does not appear to update the symbol tables for the module,
e.g. 'readelf -s' shows the value that a symbol would have had, if
sections were not merged. ld.lld does not show this problem.

The stale symbol table breaks gdb's function disassembler, and presumably
other things, e.g.

  gdb -batch -ex "file arch/x86/kvm/kvm.ko" -ex "disassemble kvm_init"

reads the wrong bytes and dumps garbage.

Fixes: dd2776222abb ("kbuild: lto: merge module sections")
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210322234438.502582-1-seanjc@google.com
Cc: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 scripts/module.lds.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index 18d5b84236350..c5f12195817bb 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -26,6 +26,7 @@ SECTIONS {
 
 	__patchable_function_entries : { *(__patchable_function_entries) }
 
+#ifdef CONFIG_LTO_CLANG
 	/*
 	 * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
 	 * -ffunction-sections, which increases the size of the final module.
@@ -47,6 +48,7 @@ SECTIONS {
 	}
 
 	.text : { *(.text .text.[0-9a-zA-Z_]*) }
+#endif
 }
 
 /* bring in arch-specific sections */
-- 
GitLab


From 008508c16af0087cda0394e1ac6f0493b01b6063 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 8 Feb 2022 11:47:30 +0100
Subject: [PATCH 4041/4878] iwlwifi: fix use-after-free
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit bea2662e7818e15d7607d17d57912ac984275d94 upstream.

If no firmware was present at all (or, presumably, all of the
firmware files failed to parse), we end up unbinding by calling
device_release_driver(), which calls remove(), which then in
iwlwifi calls iwl_drv_stop(), freeing the 'drv' struct. However
the new code I added will still erroneously access it after it
was freed.

Set 'failure=false' in this case to avoid the access, all data
was already freed anyway.

Cc: stable@vger.kernel.org
Reported-by: Stefan Agner <stefan@agner.ch>
Reported-by: Wolfgang Walter <linux@stwm.de>
Reported-by: Jason Self <jason@bluehome.net>
Reported-by: Dominik Behr <dominik@dominikbehr.com>
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Fixes: ab07506b0454 ("iwlwifi: fix leaks/bad data after failed firmware load")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220208114728.e6b514cf4c85.Iffb575ca2a623d7859b542c33b2a507d01554251@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 30c6d7b18599a..ab84ac3f8f03f 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1646,6 +1646,8 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
  out_unbind:
 	complete(&drv->request_firmware_complete);
 	device_release_driver(drv->trans->dev);
+	/* drv has just been freed by the release */
+	failure = false;
  free:
 	if (failure)
 		iwl_dealloc_ucode(drv);
-- 
GitLab


From 5564d83ebc1b91537a7fc92c8e19b8c1a29caa9d Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nicholasbishop@google.com>
Date: Fri, 11 Feb 2022 14:57:39 -0500
Subject: [PATCH 4042/4878] drm/radeon: Fix backlight control on iMac 12,1

commit 364438fd629f7611a84c8e6d7de91659300f1502 upstream.

The iMac 12,1 does not use the gmux driver for backlight, so the radeon
backlight device is needed to set the brightness.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1838
Signed-off-by: Nicholas Bishop <nicholasbishop@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/radeon/atombios_encoders.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index cc5ee1b3af84f..12aa7877a625a 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -197,7 +197,8 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
 	 * so don't register a backlight device
 	 */
 	if ((rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) &&
-	    (rdev->pdev->device == 0x6741))
+	    (rdev->pdev->device == 0x6741) &&
+	    !dmi_match(DMI_PRODUCT_NAME, "iMac12,1"))
 		return;
 
 	if (!radeon_encoder->enc_priv)
-- 
GitLab


From eb7bf11e8ef1fd12ec3d8b0f48b749fc45a0347a Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 10 Feb 2022 12:36:42 +0200
Subject: [PATCH 4043/4878] drm/i915/opregion: check port number bounds for
 SWSCI display power state
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit ea958422291de248b9e2eaaeea36004e84b64043 upstream.

The mapping from enum port to whatever port numbering scheme is used by
the SWSCI Display Power State Notification is odd, and the memory of it
has faded. In any case, the parameter only has space for ports numbered
[0..4], and UBSAN reports bit shift beyond it when the platform has port
F or more.

Since the SWSCI functionality is supposed to be obsolete for new
platforms (i.e. ones that might have port F or more), just bail out
early if the mapped and mangled port number is beyond what the Display
Power State Notification can support.

Fixes: 9c4b0a683193 ("drm/i915: add opregion function to notify bios of encoder enable/disable")
Cc: <stable@vger.kernel.org> # v3.13+
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4800
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/cc363f42d6b5a5932b6d218fefcc8bdfb15dbbe5.1644489329.git.jani.nikula@intel.com
(cherry picked from commit 24a644ebbfd3b13cda702f98907f9dd123e34bf9)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/display/intel_opregion.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c
index de995362f4283..abff2d6cedd12 100644
--- a/drivers/gpu/drm/i915/display/intel_opregion.c
+++ b/drivers/gpu/drm/i915/display/intel_opregion.c
@@ -361,6 +361,21 @@ int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
 		port++;
 	}
 
+	/*
+	 * The port numbering and mapping here is bizarre. The now-obsolete
+	 * swsci spec supports ports numbered [0..4]. Port E is handled as a
+	 * special case, but port F and beyond are not. The functionality is
+	 * supposed to be obsolete for new platforms. Just bail out if the port
+	 * number is out of bounds after mapping.
+	 */
+	if (port > 4) {
+		drm_dbg_kms(&dev_priv->drm,
+			    "[ENCODER:%d:%s] port %c (index %u) out of bounds for display power state notification\n",
+			    intel_encoder->base.base.id, intel_encoder->base.name,
+			    port_name(intel_encoder->port), port);
+		return -EINVAL;
+	}
+
 	if (!enable)
 		parm |= 4 << 8;
 
-- 
GitLab


From 87cd1bbd6677411e17369cd4b7389ab1e1fdba44 Mon Sep 17 00:00:00 2001
From: Seth Forshee <sforshee@digitalocean.com>
Date: Thu, 17 Feb 2022 08:13:12 -0600
Subject: [PATCH 4044/4878] vsock: remove vsock from connected table when
 connect is interrupted by a signal

commit b9208492fcaecff8f43915529ae34b3bcb03877c upstream.

vsock_connect() expects that the socket could already be in the
TCP_ESTABLISHED state when the connecting task wakes up with a signal
pending. If this happens the socket will be in the connected table, and
it is not removed when the socket state is reset. In this situation it's
common for the process to retry connect(), and if the connection is
successful the socket will be added to the connected table a second
time, corrupting the list.

Prevent this by calling vsock_remove_connected() if a signal is received
while waiting for a connection. This is harmless if the socket is not in
the connected table, and if it is in the table then removing it will
prevent list corruption from a double add.

Note for backporting: this patch requires d5afa82c977e ("vsock: correct
removal of socket from the list"), which is in all current stable trees
except 4.9.y.

Fixes: d021c344051a ("VSOCK: Introduce VM Sockets")
Signed-off-by: Seth Forshee <sforshee@digitalocean.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20220217141312.2297547-1-sforshee@digitalocean.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/vmw_vsock/af_vsock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 7fe36dbcbe187..005aa701f4d52 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1357,6 +1357,7 @@ static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr,
 			sk->sk_state = sk->sk_state == TCP_ESTABLISHED ? TCP_CLOSING : TCP_CLOSE;
 			sock->state = SS_UNCONNECTED;
 			vsock_transport_cancel_pkt(vsk);
+			vsock_remove_connected(vsk);
 			goto out_wait;
 		} else if (timeout == 0) {
 			err = -ETIMEDOUT;
-- 
GitLab


From f3c1910257c88b80e105e42cadf0b873869ddff6 Mon Sep 17 00:00:00 2001
From: Siva Mullati <siva.mullati@intel.com>
Date: Fri, 7 Jan 2022 15:22:35 +0530
Subject: [PATCH 4045/4878] drm/i915/gvt: Make DRM_I915_GVT depend on X86

commit d72d69abfdb6e0375981cfdda8eb45143f12c77d upstream.

GVT is not supported on non-x86 platforms, So add
dependency of X86 on config parameter DRM_I915_GVT.

Fixes: 0ad35fed618c ("drm/i915: gvt: Introduce the basic architecture of GVT-g")
Signed-off-by: Siva Mullati <siva.mullati@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220107095235.243448-1-siva.mullati@intel.com
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 1e1cb245fca77..8eb9bf3a1617e 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -100,6 +100,7 @@ config DRM_I915_USERPTR
 config DRM_I915_GVT
 	bool "Enable Intel GVT-g graphics virtualization host support"
 	depends on DRM_I915
+	depends on X86
 	depends on 64BIT
 	default n
 	help
-- 
GitLab


From 8867f993790d9d9ff6e10fd937260c76b12390ce Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 28 Jan 2022 14:30:52 +0200
Subject: [PATCH 4046/4878] iwlwifi: pcie: fix locking when "HW not ready"

commit e9848aed147708a06193b40d78493b0ef6abccf2 upstream.

If we run into this error path, we shouldn't unlock the mutex
since it's not locked since. Fix this.

Fixes: a6bd005fe92d ("iwlwifi: pcie: fix RF-Kill vs. firmware load race")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/iwlwifi.20220128142706.5d16821d1433.Id259699ddf9806459856d6aefbdbe54477aecffd@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 082768ec8aa80..daec61a60fec5 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -1313,8 +1313,7 @@ static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
 	/* This may fail if AMT took ownership of the device */
 	if (iwl_pcie_prepare_card_hw(trans)) {
 		IWL_WARN(trans, "Exit HW not ready\n");
-		ret = -EIO;
-		goto out;
+		return -EIO;
 	}
 
 	iwl_enable_rfkill_int(trans);
-- 
GitLab


From b26ea3f6b7b0d9e7167c7c7c2d73328aadae3954 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 28 Jan 2022 14:30:53 +0200
Subject: [PATCH 4047/4878] iwlwifi: pcie: gen2: fix locking when "HW not
 ready"

commit 4c29c1e27a1e178a219b3877d055e6dd643bdfda upstream.

If we run into this error path, we shouldn't unlock the mutex
since it's not locked since. Fix this in the gen2 code as well.

Fixes: eda50cde58de ("iwlwifi: pcie: add context information support")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/iwlwifi.20220128142706.b8b0dfce16ef.Ie20f0f7b23e5911350a2766524300d2915e7b677@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
index b031e9304983c..b2991582189c2 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
@@ -320,8 +320,7 @@ int iwl_trans_pcie_gen2_start_fw(struct iwl_trans *trans,
 	/* This may fail if AMT took ownership of the device */
 	if (iwl_pcie_prepare_card_hw(trans)) {
 		IWL_WARN(trans, "Exit HW not ready\n");
-		ret = -EIO;
-		goto out;
+		return -EIO;
 	}
 
 	iwl_enable_rfkill_int(trans);
-- 
GitLab


From 26931971db5f9d81c6a334ac08eda2f2c393ce43 Mon Sep 17 00:00:00 2001
From: Hangbin Liu <liuhangbin@gmail.com>
Date: Wed, 9 Feb 2022 16:25:51 +0800
Subject: [PATCH 4048/4878] selftests: netfilter: fix exit value for
 nft_concat_range

commit 2e71ec1a725a794a16e3862791ed43fe5ba6a06b upstream.

When the nft_concat_range test failed, it exit 1 in the code
specifically.

But when part of, or all of the test passed, it will failed the
[ ${passed} -eq 0 ] check and thus exit with 1, which is the same
exit value with failure result. Fix it by exit 0 when passed is not 0.

Fixes: 611973c1e06f ("selftests: netfilter: Introduce tests for sets with range concatenation")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/netfilter/nft_concat_range.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/netfilter/nft_concat_range.sh b/tools/testing/selftests/netfilter/nft_concat_range.sh
index 9313fa32bef13..b5eef5ffb58e5 100755
--- a/tools/testing/selftests/netfilter/nft_concat_range.sh
+++ b/tools/testing/selftests/netfilter/nft_concat_range.sh
@@ -1583,4 +1583,4 @@ for name in ${TESTS}; do
 	done
 done
 
-[ ${passed} -eq 0 ] && exit ${KSELFTEST_SKIP}
+[ ${passed} -eq 0 ] && exit ${KSELFTEST_SKIP} || exit 0
-- 
GitLab


From 100344200a0cd263f23897ce20a69e0f86067d56 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 10 Feb 2022 10:06:42 +0100
Subject: [PATCH 4049/4878] netfilter: nft_synproxy: unregister hooks on init
 error path

commit 2b4e5fb4d3776c391e40fb33673ba946dd96012d upstream.

Disable the IPv4 hooks if the IPv6 hooks fail to be registered.

Fixes: ad49d86e07a4 ("netfilter: nf_tables: Add synproxy support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nft_synproxy.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/nft_synproxy.c b/net/netfilter/nft_synproxy.c
index 4fda8b3f17626..59c4dfaf2ea1f 100644
--- a/net/netfilter/nft_synproxy.c
+++ b/net/netfilter/nft_synproxy.c
@@ -191,8 +191,10 @@ static int nft_synproxy_do_init(const struct nft_ctx *ctx,
 		if (err)
 			goto nf_ct_failure;
 		err = nf_synproxy_ipv6_init(snet, ctx->net);
-		if (err)
+		if (err) {
+			nf_synproxy_ipv4_fini(snet, ctx->net);
 			goto nf_ct_failure;
+		}
 		break;
 	}
 
-- 
GitLab


From 4f523f15e5d753ac055302bc29ca9677d6692eed Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Tue, 15 Feb 2022 11:00:37 -0500
Subject: [PATCH 4050/4878] ipv6: per-netns exclusive flowlabel checks

commit 0b0dff5b3b98c5c7ce848151df9da0b3cdf0cc8b upstream.

Ipv6 flowlabels historically require a reservation before use.
Optionally in exclusive mode (e.g., user-private).

Commit 59c820b2317f ("ipv6: elide flowlabel check if no exclusive
leases exist") introduced a fastpath that avoids this check when no
exclusive leases exist in the system, and thus any flowlabel use
will be granted.

That allows skipping the control operation to reserve a flowlabel
entirely. Though with a warning if the fast path fails:

  This is an optimization. Robust applications still have to revert to
  requesting leases if the fast path fails due to an exclusive lease.

Still, this is subtle. Better isolate network namespaces from each
other. Flowlabels are per-netns. Also record per-netns whether
exclusive leases are in use. Then behavior does not change based on
activity in other netns.

Changes
  v2
    - wrap in IS_ENABLED(CONFIG_IPV6) to avoid breakage if disabled

Fixes: 59c820b2317f ("ipv6: elide flowlabel check if no exclusive leases exist")
Link: https://lore.kernel.org/netdev/MWHPR2201MB1072BCCCFCE779E4094837ACD0329@MWHPR2201MB1072.namprd22.prod.outlook.com/
Reported-by: Congyu Liu <liu3101@purdue.edu>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Tested-by: Congyu Liu <liu3101@purdue.edu>
Link: https://lore.kernel.org/r/20220215160037.1976072-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/ipv6.h       | 5 ++++-
 include/net/netns/ipv6.h | 3 ++-
 net/ipv6/ip6_flowlabel.c | 4 +++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index bd1f396cc9c72..60601896d4747 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -390,17 +390,20 @@ static inline void txopt_put(struct ipv6_txoptions *opt)
 		kfree_rcu(opt, rcu);
 }
 
+#if IS_ENABLED(CONFIG_IPV6)
 struct ip6_flowlabel *__fl6_sock_lookup(struct sock *sk, __be32 label);
 
 extern struct static_key_false_deferred ipv6_flowlabel_exclusive;
 static inline struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk,
 						    __be32 label)
 {
-	if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key))
+	if (static_branch_unlikely(&ipv6_flowlabel_exclusive.key) &&
+	    READ_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl))
 		return __fl6_sock_lookup(sk, label) ? : ERR_PTR(-ENOENT);
 
 	return NULL;
 }
+#endif
 
 struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
 					 struct ip6_flowlabel *fl,
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 5ec054473d81a..1c0fbe3abf247 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -80,9 +80,10 @@ struct netns_ipv6 {
 	spinlock_t		fib6_gc_lock;
 	unsigned int		 ip6_rt_gc_expire;
 	unsigned long		 ip6_rt_last_gc;
+	unsigned char		flowlabel_has_excl;
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-	unsigned int		fib6_rules_require_fldissect;
 	bool			fib6_has_custom_rules;
+	unsigned int		fib6_rules_require_fldissect;
 #ifdef CONFIG_IPV6_SUBTREES
 	unsigned int		fib6_routes_require_src;
 #endif
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index aa673a6a7e432..ceb85c67ce395 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -450,8 +450,10 @@ fl_create(struct net *net, struct sock *sk, struct in6_flowlabel_req *freq,
 		err = -EINVAL;
 		goto done;
 	}
-	if (fl_shared_exclusive(fl) || fl->opt)
+	if (fl_shared_exclusive(fl) || fl->opt) {
+		WRITE_ONCE(sock_net(sk)->ipv6.flowlabel_has_excl, 1);
 		static_branch_deferred_inc(&ipv6_flowlabel_exclusive);
+	}
 	return fl;
 
 done:
-- 
GitLab


From d9b2203e5a30482beb5e502b6985ad84ead922e4 Mon Sep 17 00:00:00 2001
From: Mans Rullgard <mans@mansr.com>
Date: Wed, 9 Feb 2022 14:54:54 +0000
Subject: [PATCH 4051/4878] net: dsa: lan9303: fix reset on probe

commit 6bb9681a43f34f2cab4aad6e2a02da4ce54d13c5 upstream.

The reset input to the LAN9303 chip is active low, and devicetree
gpio handles reflect this.  Therefore, the gpio should be requested
with an initial state of high in order for the reset signal to be
asserted.  Other uses of the gpio already use the correct polarity.

Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303")
Signed-off-by: Mans Rullgard <mans@mansr.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fianelil <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220209145454.19749-1-mans@mansr.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/lan9303-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index dcf1fc89451f2..2044d440d7de4 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -1305,7 +1305,7 @@ static int lan9303_probe_reset_gpio(struct lan9303 *chip,
 				     struct device_node *np)
 {
 	chip->reset_gpio = devm_gpiod_get_optional(chip->dev, "reset",
-						   GPIOD_OUT_LOW);
+						   GPIOD_OUT_HIGH);
 	if (IS_ERR(chip->reset_gpio))
 		return PTR_ERR(chip->reset_gpio);
 
-- 
GitLab


From f48bd34137718042872d06f2c7332b3267a29165 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Tue, 15 Feb 2022 13:42:48 +0300
Subject: [PATCH 4052/4878] net: dsa: lantiq_gswip: fix use after free in
 gswip_remove()

commit 8c6ae46150a453f8ae9a6cd49b45f354f478587d upstream.

of_node_put(priv->ds->slave_mii_bus->dev.of_node) should be
done before mdiobus_free(priv->ds->slave_mii_bus).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Fixes: 0d120dfb5d67 ("net: dsa: lantiq_gswip: don't use devres for mdiobus")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/1644921768-26477-1-git-send-email-khoroshilov@ispras.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/lantiq_gswip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index ed517985ca88e..80ef7ea779545 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -2114,8 +2114,8 @@ static int gswip_remove(struct platform_device *pdev)
 
 	if (priv->ds->slave_mii_bus) {
 		mdiobus_unregister(priv->ds->slave_mii_bus);
-		mdiobus_free(priv->ds->slave_mii_bus);
 		of_node_put(priv->ds->slave_mii_bus->dev.of_node);
+		mdiobus_free(priv->ds->slave_mii_bus);
 	}
 
 	for (i = 0; i < priv->num_gphy_fw; i++)
-- 
GitLab


From 6793a9b028ce803447a846c7000a89f9b4762400 Mon Sep 17 00:00:00 2001
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 1 Feb 2022 19:06:26 +0100
Subject: [PATCH 4053/4878] net: ieee802154: ca8210: Fix lifs/sifs periods

commit bdc120a2bcd834e571ce4115aaddf71ab34495de upstream.

These periods are expressed in time units (microseconds) while 40 and 12
are the number of symbol durations these periods will last. We need to
multiply them both with the symbol_duration in order to get these
values in microseconds.

Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20220201180629.93410-2-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ieee802154/ca8210.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index fea8b681f567c..fd9f33c833fa3 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c
@@ -2977,8 +2977,8 @@ static void ca8210_hw_setup(struct ieee802154_hw *ca8210_hw)
 	ca8210_hw->phy->cca.opt = NL802154_CCA_OPT_ENERGY_CARRIER_AND;
 	ca8210_hw->phy->cca_ed_level = -9800;
 	ca8210_hw->phy->symbol_duration = 16;
-	ca8210_hw->phy->lifs_period = 40;
-	ca8210_hw->phy->sifs_period = 12;
+	ca8210_hw->phy->lifs_period = 40 * ca8210_hw->phy->symbol_duration;
+	ca8210_hw->phy->sifs_period = 12 * ca8210_hw->phy->symbol_duration;
 	ca8210_hw->flags =
 		IEEE802154_HW_AFILT |
 		IEEE802154_HW_OMIT_CKSUM |
-- 
GitLab


From 8dec3c4e7350ff24910aa454847f7dc9e4bc38f9 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 16 Feb 2022 00:20:52 -0500
Subject: [PATCH 4054/4878] ping: fix the dif and sdif check in ping_lookup

commit 35a79e64de29e8d57a5989aac57611c0cd29e13e upstream.

When 'ping' changes to use PING socket instead of RAW socket by:

   # sysctl -w net.ipv4.ping_group_range="0 100"

There is another regression caused when matching sk_bound_dev_if
and dif, RAW socket is using inet_iif() while PING socket lookup
is using skb->dev->ifindex, the cmd below fails due to this:

  # ip link add dummy0 type dummy
  # ip link set dummy0 up
  # ip addr add 192.168.111.1/24 dev dummy0
  # ping -I dummy0 192.168.111.1 -c1

The issue was also reported on:

  https://github.com/iputils/iputils/issues/104

But fixed in iputils in a wrong way by not binding to device when
destination IP is on device, and it will cause some of kselftests
to fail, as Jianlin noticed.

This patch is to use inet(6)_iif and inet(6)_sdif to get dif and
sdif for PING socket, and keep consistent with RAW socket.

Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Reported-by: Jianlin Shi <jishi@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/ping.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index a5722905456c2..323cb231cb580 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -172,16 +172,23 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 	struct sock *sk = NULL;
 	struct inet_sock *isk;
 	struct hlist_nulls_node *hnode;
-	int dif = skb->dev->ifindex;
+	int dif, sdif;
 
 	if (skb->protocol == htons(ETH_P_IP)) {
+		dif = inet_iif(skb);
+		sdif = inet_sdif(skb);
 		pr_debug("try to find: num = %d, daddr = %pI4, dif = %d\n",
 			 (int)ident, &ip_hdr(skb)->daddr, dif);
 #if IS_ENABLED(CONFIG_IPV6)
 	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+		dif = inet6_iif(skb);
+		sdif = inet6_sdif(skb);
 		pr_debug("try to find: num = %d, daddr = %pI6c, dif = %d\n",
 			 (int)ident, &ipv6_hdr(skb)->daddr, dif);
 #endif
+	} else {
+		pr_err("ping: protocol(%x) is not supported\n", ntohs(skb->protocol));
+		return NULL;
 	}
 
 	read_lock_bh(&ping_table.lock);
@@ -221,7 +228,7 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 		}
 
 		if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif &&
-		    sk->sk_bound_dev_if != inet_sdif(skb))
+		    sk->sk_bound_dev_if != sdif)
 			continue;
 
 		sock_hold(sk);
-- 
GitLab


From a0e004e6206e52079c8309daaf466b506ca4b52d Mon Sep 17 00:00:00 2001
From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Wed, 16 Feb 2022 22:18:08 +0800
Subject: [PATCH 4055/4878] bonding: force carrier update when releasing slave

commit a6ab75cec1e461f8a35559054c146c21428430b8 upstream.

In __bond_release_one(), bond_set_carrier() is only called when bond
device has no slave. Therefore, if we remove the up slave from a master
with two slaves and keep the down slave, the master will remain up.

Fix this by moving bond_set_carrier() out of if (!bond_has_slaves(bond))
statement.

Reproducer:
$ insmod bonding.ko mode=0 miimon=100 max_bonds=2
$ ifconfig bond0 up
$ ifenslave bond0 eth0 eth1
$ ifconfig eth0 down
$ ifenslave -d bond0 eth1
$ cat /proc/net/bonding/bond0

Fixes: ff59c4563a8d ("[PATCH] bonding: support carrier state for master")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/1645021088-38370-1-git-send-email-zhangchangzhong@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/bonding/bond_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 99770b1671923..cbeb69bca0bba 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2272,10 +2272,9 @@ static int __bond_release_one(struct net_device *bond_dev,
 		bond_select_active_slave(bond);
 	}
 
-	if (!bond_has_slaves(bond)) {
-		bond_set_carrier(bond);
+	bond_set_carrier(bond);
+	if (!bond_has_slaves(bond))
 		eth_hw_addr_random(bond_dev);
-	}
 
 	unblock_netpoll_tx();
 	synchronize_rcu();
-- 
GitLab


From 877a05672f95d819ba2e45af3b7e95e01ece4c28 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 10 Feb 2022 09:13:31 -0800
Subject: [PATCH 4056/4878] drop_monitor: fix data-race in dropmon_net_event /
 trace_napi_poll_hit

commit dcd54265c8bc14bd023815e36e2d5f9d66ee1fee upstream.

trace_napi_poll_hit() is reading stat->dev while another thread can write
on it from dropmon_net_event()

Use READ_ONCE()/WRITE_ONCE() here, RCU rules are properly enforced already,
we only have to take care of load/store tearing.

BUG: KCSAN: data-race in dropmon_net_event / trace_napi_poll_hit

write to 0xffff88816f3ab9c0 of 8 bytes by task 20260 on cpu 1:
 dropmon_net_event+0xb8/0x2b0 net/core/drop_monitor.c:1579
 notifier_call_chain kernel/notifier.c:84 [inline]
 raw_notifier_call_chain+0x53/0xb0 kernel/notifier.c:392
 call_netdevice_notifiers_info net/core/dev.c:1919 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:1931 [inline]
 call_netdevice_notifiers net/core/dev.c:1945 [inline]
 unregister_netdevice_many+0x867/0xfb0 net/core/dev.c:10415
 ip_tunnel_delete_nets+0x24a/0x280 net/ipv4/ip_tunnel.c:1123
 vti_exit_batch_net+0x2a/0x30 net/ipv4/ip_vti.c:515
 ops_exit_list net/core/net_namespace.c:173 [inline]
 cleanup_net+0x4dc/0x8d0 net/core/net_namespace.c:597
 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
 worker_thread+0x616/0xa70 kernel/workqueue.c:2454
 kthread+0x1bf/0x1e0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30

read to 0xffff88816f3ab9c0 of 8 bytes by interrupt on cpu 0:
 trace_napi_poll_hit+0x89/0x1c0 net/core/drop_monitor.c:292
 trace_napi_poll include/trace/events/napi.h:14 [inline]
 __napi_poll+0x36b/0x3f0 net/core/dev.c:6366
 napi_poll net/core/dev.c:6432 [inline]
 net_rx_action+0x29e/0x650 net/core/dev.c:6519
 __do_softirq+0x158/0x2de kernel/softirq.c:558
 do_softirq+0xb1/0xf0 kernel/softirq.c:459
 __local_bh_enable_ip+0x68/0x70 kernel/softirq.c:383
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
 _raw_spin_unlock_bh+0x33/0x40 kernel/locking/spinlock.c:210
 spin_unlock_bh include/linux/spinlock.h:394 [inline]
 ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
 wg_packet_decrypt_worker+0x73c/0x780 drivers/net/wireguard/receive.c:506
 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
 worker_thread+0x616/0xa70 kernel/workqueue.c:2454
 kthread+0x1bf/0x1e0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30

value changed: 0xffff88815883e000 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 26435 Comm: kworker/0:1 Not tainted 5.17.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker

Fixes: 4ea7e38696c7 ("dropmon: add ability to detect when hardware dropsrxpackets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/drop_monitor.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index db65ce62b625a..ed9dd17f9348c 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -280,13 +280,17 @@ static void trace_napi_poll_hit(void *ignore, struct napi_struct *napi,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(new_stat, &hw_stats_list, list) {
+		struct net_device *dev;
+
 		/*
 		 * only add a note to our monitor buffer if:
 		 * 1) this is the dev we received on
 		 * 2) its after the last_rx delta
 		 * 3) our rx_dropped count has gone up
 		 */
-		if ((new_stat->dev == napi->dev)  &&
+		/* Paired with WRITE_ONCE() in dropmon_net_event() */
+		dev = READ_ONCE(new_stat->dev);
+		if ((dev == napi->dev)  &&
 		    (time_after(jiffies, new_stat->last_rx + dm_hw_check_delta)) &&
 		    (napi->dev->stats.rx_dropped != new_stat->last_drop_val)) {
 			trace_drop_common(NULL, NULL);
@@ -1574,7 +1578,10 @@ static int dropmon_net_event(struct notifier_block *ev_block,
 		mutex_lock(&net_dm_mutex);
 		list_for_each_entry_safe(new_stat, tmp, &hw_stats_list, list) {
 			if (new_stat->dev == dev) {
-				new_stat->dev = NULL;
+
+				/* Paired with READ_ONCE() in trace_napi_poll_hit() */
+				WRITE_ONCE(new_stat->dev, NULL);
+
 				if (trace_state == TRACE_OFF) {
 					list_del_rcu(&new_stat->list);
 					kfree_rcu(new_stat, rcu);
-- 
GitLab


From d9bd9d4c60c34fe3e71732b8edcba3a880193948 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 11 Feb 2022 12:06:23 -0800
Subject: [PATCH 4057/4878] net_sched: add __rcu annotation to netdev->qdisc

commit 5891cd5ec46c2c2eb6427cb54d214b149635dd0e upstream.

syzbot found a data-race [1] which lead me to add __rcu
annotations to netdev->qdisc, and proper accessors
to get LOCKDEP support.

[1]
BUG: KCSAN: data-race in dev_activate / qdisc_lookup_rcu

write to 0xffff888168ad6410 of 8 bytes by task 13559 on cpu 1:
 attach_default_qdiscs net/sched/sch_generic.c:1167 [inline]
 dev_activate+0x2ed/0x8f0 net/sched/sch_generic.c:1221
 __dev_open+0x2e9/0x3a0 net/core/dev.c:1416
 __dev_change_flags+0x167/0x3f0 net/core/dev.c:8139
 rtnl_configure_link+0xc2/0x150 net/core/rtnetlink.c:3150
 __rtnl_newlink net/core/rtnetlink.c:3489 [inline]
 rtnl_newlink+0xf4d/0x13e0 net/core/rtnetlink.c:3529
 rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5594
 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2494
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5612
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x602/0x6d0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x728/0x850 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2413
 ___sys_sendmsg net/socket.c:2467 [inline]
 __sys_sendmsg+0x195/0x230 net/socket.c:2496
 __do_sys_sendmsg net/socket.c:2505 [inline]
 __se_sys_sendmsg net/socket.c:2503 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2503
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888168ad6410 of 8 bytes by task 13560 on cpu 0:
 qdisc_lookup_rcu+0x30/0x2e0 net/sched/sch_api.c:323
 __tcf_qdisc_find+0x74/0x3a0 net/sched/cls_api.c:1050
 tc_del_tfilter+0x1c7/0x1350 net/sched/cls_api.c:2211
 rtnetlink_rcv_msg+0x5ba/0x7e0 net/core/rtnetlink.c:5585
 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2494
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5612
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x602/0x6d0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x728/0x850 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2413
 ___sys_sendmsg net/socket.c:2467 [inline]
 __sys_sendmsg+0x195/0x230 net/socket.c:2496
 __do_sys_sendmsg net/socket.c:2505 [inline]
 __se_sys_sendmsg net/socket.c:2503 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2503
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffffffff85dee080 -> 0xffff88815d96ec00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 13560 Comm: syz-executor.2 Not tainted 5.17.0-rc3-syzkaller-00116-gf1baf68e1383-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 470502de5bdb ("net: sched: unlock rules update API")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Vlad Buslov <vladbu@mellanox.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/netdevice.h |  2 +-
 net/core/rtnetlink.c      |  6 ++++--
 net/sched/cls_api.c       |  6 +++---
 net/sched/sch_api.c       | 22 ++++++++++++----------
 net/sched/sch_generic.c   | 29 ++++++++++++++++-------------
 5 files changed, 36 insertions(+), 29 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index fe3155736d635..861f2480c4571 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2061,7 +2061,7 @@ struct net_device {
 	struct netdev_queue	*_tx ____cacheline_aligned_in_smp;
 	unsigned int		num_tx_queues;
 	unsigned int		real_num_tx_queues;
-	struct Qdisc		*qdisc;
+	struct Qdisc __rcu	*qdisc;
 	unsigned int		tx_queue_len;
 	spinlock_t		tx_global_lock;
 
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 373564bf57acb..9ff6d4160daba 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1705,6 +1705,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
 {
 	struct ifinfomsg *ifm;
 	struct nlmsghdr *nlh;
+	struct Qdisc *qdisc;
 
 	ASSERT_RTNL();
 	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
@@ -1722,6 +1723,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
 	if (tgt_netnsid >= 0 && nla_put_s32(skb, IFLA_TARGET_NETNSID, tgt_netnsid))
 		goto nla_put_failure;
 
+	qdisc = rtnl_dereference(dev->qdisc);
 	if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
 	    nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
 	    nla_put_u8(skb, IFLA_OPERSTATE,
@@ -1740,8 +1742,8 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
 #endif
 	    put_master_ifindex(skb, dev) ||
 	    nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
-	    (dev->qdisc &&
-	     nla_put_string(skb, IFLA_QDISC, dev->qdisc->ops->id)) ||
+	    (qdisc &&
+	     nla_put_string(skb, IFLA_QDISC, qdisc->ops->id)) ||
 	    nla_put_ifalias(skb, dev) ||
 	    nla_put_u32(skb, IFLA_CARRIER_CHANGES,
 			atomic_read(&dev->carrier_up_count) +
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 7993a692c7fda..9a789a057a741 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -1045,7 +1045,7 @@ static int __tcf_qdisc_find(struct net *net, struct Qdisc **q,
 
 	/* Find qdisc */
 	if (!*parent) {
-		*q = dev->qdisc;
+		*q = rcu_dereference(dev->qdisc);
 		*parent = (*q)->handle;
 	} else {
 		*q = qdisc_lookup_rcu(dev, TC_H_MAJ(*parent));
@@ -2591,7 +2591,7 @@ static int tc_dump_tfilter(struct sk_buff *skb, struct netlink_callback *cb)
 
 		parent = tcm->tcm_parent;
 		if (!parent)
-			q = dev->qdisc;
+			q = rtnl_dereference(dev->qdisc);
 		else
 			q = qdisc_lookup(dev, TC_H_MAJ(tcm->tcm_parent));
 		if (!q)
@@ -2977,7 +2977,7 @@ static int tc_dump_chain(struct sk_buff *skb, struct netlink_callback *cb)
 
 		parent = tcm->tcm_parent;
 		if (!parent) {
-			q = dev->qdisc;
+			q = rtnl_dereference(dev->qdisc);
 			parent = q->handle;
 		} else {
 			q = qdisc_lookup(dev, TC_H_MAJ(tcm->tcm_parent));
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 6758968e79327..6e18aa4177828 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -301,7 +301,7 @@ struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
 
 	if (!handle)
 		return NULL;
-	q = qdisc_match_from_root(dev->qdisc, handle);
+	q = qdisc_match_from_root(rtnl_dereference(dev->qdisc), handle);
 	if (q)
 		goto out;
 
@@ -320,7 +320,7 @@ struct Qdisc *qdisc_lookup_rcu(struct net_device *dev, u32 handle)
 
 	if (!handle)
 		return NULL;
-	q = qdisc_match_from_root(dev->qdisc, handle);
+	q = qdisc_match_from_root(rcu_dereference(dev->qdisc), handle);
 	if (q)
 		goto out;
 
@@ -1082,10 +1082,10 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
 skip:
 		if (!ingress) {
 			notify_and_destroy(net, skb, n, classid,
-					   dev->qdisc, new);
+					   rtnl_dereference(dev->qdisc), new);
 			if (new && !new->ops->attach)
 				qdisc_refcount_inc(new);
-			dev->qdisc = new ? : &noop_qdisc;
+			rcu_assign_pointer(dev->qdisc, new ? : &noop_qdisc);
 
 			if (new && new->ops->attach)
 				new->ops->attach(new);
@@ -1460,7 +1460,7 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
 				q = dev_ingress_queue(dev)->qdisc_sleeping;
 			}
 		} else {
-			q = dev->qdisc;
+			q = rtnl_dereference(dev->qdisc);
 		}
 		if (!q) {
 			NL_SET_ERR_MSG(extack, "Cannot find specified qdisc on specified device");
@@ -1549,7 +1549,7 @@ replay:
 				q = dev_ingress_queue(dev)->qdisc_sleeping;
 			}
 		} else {
-			q = dev->qdisc;
+			q = rtnl_dereference(dev->qdisc);
 		}
 
 		/* It may be default qdisc, ignore it */
@@ -1771,7 +1771,8 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb)
 			s_q_idx = 0;
 		q_idx = 0;
 
-		if (tc_dump_qdisc_root(dev->qdisc, skb, cb, &q_idx, s_q_idx,
+		if (tc_dump_qdisc_root(rtnl_dereference(dev->qdisc),
+				       skb, cb, &q_idx, s_q_idx,
 				       true, tca[TCA_DUMP_INVISIBLE]) < 0)
 			goto done;
 
@@ -2047,7 +2048,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
 		} else if (qid1) {
 			qid = qid1;
 		} else if (qid == 0)
-			qid = dev->qdisc->handle;
+			qid = rtnl_dereference(dev->qdisc)->handle;
 
 		/* Now qid is genuine qdisc handle consistent
 		 * both with parent and child.
@@ -2058,7 +2059,7 @@ static int tc_ctl_tclass(struct sk_buff *skb, struct nlmsghdr *n,
 			portid = TC_H_MAKE(qid, portid);
 	} else {
 		if (qid == 0)
-			qid = dev->qdisc->handle;
+			qid = rtnl_dereference(dev->qdisc)->handle;
 	}
 
 	/* OK. Locate qdisc */
@@ -2219,7 +2220,8 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
 	s_t = cb->args[0];
 	t = 0;
 
-	if (tc_dump_tclass_root(dev->qdisc, skb, tcm, cb, &t, s_t, true) < 0)
+	if (tc_dump_tclass_root(rtnl_dereference(dev->qdisc),
+				skb, tcm, cb, &t, s_t, true) < 0)
 		goto done;
 
 	dev_queue = dev_ingress_queue(dev);
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index b5005abc84ec2..5d5391adb667c 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1088,30 +1088,33 @@ static void attach_default_qdiscs(struct net_device *dev)
 	if (!netif_is_multiqueue(dev) ||
 	    dev->priv_flags & IFF_NO_QUEUE) {
 		netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL);
-		dev->qdisc = txq->qdisc_sleeping;
-		qdisc_refcount_inc(dev->qdisc);
+		qdisc = txq->qdisc_sleeping;
+		rcu_assign_pointer(dev->qdisc, qdisc);
+		qdisc_refcount_inc(qdisc);
 	} else {
 		qdisc = qdisc_create_dflt(txq, &mq_qdisc_ops, TC_H_ROOT, NULL);
 		if (qdisc) {
-			dev->qdisc = qdisc;
+			rcu_assign_pointer(dev->qdisc, qdisc);
 			qdisc->ops->attach(qdisc);
 		}
 	}
+	qdisc = rtnl_dereference(dev->qdisc);
 
 	/* Detect default qdisc setup/init failed and fallback to "noqueue" */
-	if (dev->qdisc == &noop_qdisc) {
+	if (qdisc == &noop_qdisc) {
 		netdev_warn(dev, "default qdisc (%s) fail, fallback to %s\n",
 			    default_qdisc_ops->id, noqueue_qdisc_ops.id);
 		dev->priv_flags |= IFF_NO_QUEUE;
 		netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL);
-		dev->qdisc = txq->qdisc_sleeping;
-		qdisc_refcount_inc(dev->qdisc);
+		qdisc = txq->qdisc_sleeping;
+		rcu_assign_pointer(dev->qdisc, qdisc);
+		qdisc_refcount_inc(qdisc);
 		dev->priv_flags ^= IFF_NO_QUEUE;
 	}
 
 #ifdef CONFIG_NET_SCHED
-	if (dev->qdisc != &noop_qdisc)
-		qdisc_hash_add(dev->qdisc, false);
+	if (qdisc != &noop_qdisc)
+		qdisc_hash_add(qdisc, false);
 #endif
 }
 
@@ -1141,7 +1144,7 @@ void dev_activate(struct net_device *dev)
 	 * and noqueue_qdisc for virtual interfaces
 	 */
 
-	if (dev->qdisc == &noop_qdisc)
+	if (rtnl_dereference(dev->qdisc) == &noop_qdisc)
 		attach_default_qdiscs(dev);
 
 	if (!netif_carrier_ok(dev))
@@ -1306,7 +1309,7 @@ static int qdisc_change_tx_queue_len(struct net_device *dev,
 void dev_qdisc_change_real_num_tx(struct net_device *dev,
 				  unsigned int new_real_tx)
 {
-	struct Qdisc *qdisc = dev->qdisc;
+	struct Qdisc *qdisc = rtnl_dereference(dev->qdisc);
 
 	if (qdisc->ops->change_real_num_tx)
 		qdisc->ops->change_real_num_tx(qdisc, new_real_tx);
@@ -1346,7 +1349,7 @@ static void dev_init_scheduler_queue(struct net_device *dev,
 
 void dev_init_scheduler(struct net_device *dev)
 {
-	dev->qdisc = &noop_qdisc;
+	rcu_assign_pointer(dev->qdisc, &noop_qdisc);
 	netdev_for_each_tx_queue(dev, dev_init_scheduler_queue, &noop_qdisc);
 	if (dev_ingress_queue(dev))
 		dev_init_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
@@ -1374,8 +1377,8 @@ void dev_shutdown(struct net_device *dev)
 	netdev_for_each_tx_queue(dev, shutdown_scheduler_queue, &noop_qdisc);
 	if (dev_ingress_queue(dev))
 		shutdown_scheduler_queue(dev, dev_ingress_queue(dev), &noop_qdisc);
-	qdisc_put(dev->qdisc);
-	dev->qdisc = &noop_qdisc;
+	qdisc_put(rtnl_dereference(dev->qdisc));
+	rcu_assign_pointer(dev->qdisc, &noop_qdisc);
 
 	WARN_ON(timer_pending(&dev->watchdog_timer));
 }
-- 
GitLab


From ffa8df4f0e8fb60c5f7bc71992f67016173c2744 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 14 Feb 2022 11:15:53 -0800
Subject: [PATCH 4058/4878] bonding: fix data-races around agg_select_timer

commit 9ceaf6f76b203682bb6100e14b3d7da4c0bedde8 upstream.

syzbot reported that two threads might write over agg_select_timer
at the same time. Make agg_select_timer atomic to fix the races.

BUG: KCSAN: data-race in bond_3ad_initiate_agg_selection / bond_3ad_state_machine_handler

read to 0xffff8881242aea90 of 4 bytes by task 1846 on cpu 1:
 bond_3ad_state_machine_handler+0x99/0x2810 drivers/net/bonding/bond_3ad.c:2317
 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
 worker_thread+0x616/0xa70 kernel/workqueue.c:2454
 kthread+0x1bf/0x1e0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30

write to 0xffff8881242aea90 of 4 bytes by task 25910 on cpu 0:
 bond_3ad_initiate_agg_selection+0x18/0x30 drivers/net/bonding/bond_3ad.c:1998
 bond_open+0x658/0x6f0 drivers/net/bonding/bond_main.c:3967
 __dev_open+0x274/0x3a0 net/core/dev.c:1407
 dev_open+0x54/0x190 net/core/dev.c:1443
 bond_enslave+0xcef/0x3000 drivers/net/bonding/bond_main.c:1937
 do_set_master net/core/rtnetlink.c:2532 [inline]
 do_setlink+0x94f/0x2500 net/core/rtnetlink.c:2736
 __rtnl_newlink net/core/rtnetlink.c:3414 [inline]
 rtnl_newlink+0xfeb/0x13e0 net/core/rtnetlink.c:3529
 rtnetlink_rcv_msg+0x745/0x7e0 net/core/rtnetlink.c:5594
 netlink_rcv_skb+0x14e/0x250 net/netlink/af_netlink.c:2494
 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:5612
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x602/0x6d0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x728/0x850 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2413
 ___sys_sendmsg net/socket.c:2467 [inline]
 __sys_sendmsg+0x195/0x230 net/socket.c:2496
 __do_sys_sendmsg net/socket.c:2505 [inline]
 __se_sys_sendmsg net/socket.c:2503 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2503
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00000050 -> 0x0000004f

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 25910 Comm: syz-executor.1 Tainted: G        W         5.17.0-rc4-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/bonding/bond_3ad.c | 30 +++++++++++++++++++++++++-----
 include/net/bond_3ad.h         |  2 +-
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index ab8c833411654..c2cef7ba26719 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -223,7 +223,7 @@ static inline int __check_agg_selection_timer(struct port *port)
 	if (bond == NULL)
 		return 0;
 
-	return BOND_AD_INFO(bond).agg_select_timer ? 1 : 0;
+	return atomic_read(&BOND_AD_INFO(bond).agg_select_timer) ? 1 : 0;
 }
 
 /**
@@ -1976,7 +1976,7 @@ static void ad_marker_response_received(struct bond_marker *marker,
  */
 void bond_3ad_initiate_agg_selection(struct bonding *bond, int timeout)
 {
-	BOND_AD_INFO(bond).agg_select_timer = timeout;
+	atomic_set(&BOND_AD_INFO(bond).agg_select_timer, timeout);
 }
 
 /**
@@ -2259,6 +2259,28 @@ void bond_3ad_update_ad_actor_settings(struct bonding *bond)
 	spin_unlock_bh(&bond->mode_lock);
 }
 
+/**
+ * bond_agg_timer_advance - advance agg_select_timer
+ * @bond:  bonding structure
+ *
+ * Return true when agg_select_timer reaches 0.
+ */
+static bool bond_agg_timer_advance(struct bonding *bond)
+{
+	int val, nval;
+
+	while (1) {
+		val = atomic_read(&BOND_AD_INFO(bond).agg_select_timer);
+		if (!val)
+			return false;
+		nval = val - 1;
+		if (atomic_cmpxchg(&BOND_AD_INFO(bond).agg_select_timer,
+				   val, nval) == val)
+			break;
+	}
+	return nval == 0;
+}
+
 /**
  * bond_3ad_state_machine_handler - handle state machines timeout
  * @work: work context to fetch bonding struct to work on from
@@ -2294,9 +2316,7 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	if (!bond_has_slaves(bond))
 		goto re_arm;
 
-	/* check if agg_select_timer timer after initialize is timed out */
-	if (BOND_AD_INFO(bond).agg_select_timer &&
-	    !(--BOND_AD_INFO(bond).agg_select_timer)) {
+	if (bond_agg_timer_advance(bond)) {
 		slave = bond_first_slave_rcu(bond);
 		port = slave ? &(SLAVE_AD_INFO(slave)->port) : NULL;
 
diff --git a/include/net/bond_3ad.h b/include/net/bond_3ad.h
index c8696a230b7d9..1a28f299a4c61 100644
--- a/include/net/bond_3ad.h
+++ b/include/net/bond_3ad.h
@@ -262,7 +262,7 @@ struct ad_system {
 struct ad_bond_info {
 	struct ad_system system;	/* 802.3ad system structure */
 	struct bond_3ad_stats stats;
-	u32 agg_select_timer;		/* Timer to select aggregator after all adapter's hand shakes */
+	atomic_t agg_select_timer;		/* Timer to select aggregator after all adapter's hand shakes */
 	u16 aggregator_identifier;
 };
 
-- 
GitLab


From 50f3b00d4c7ba9aef6e0be4db192ee81f4f8a125 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Sun, 13 Feb 2022 10:24:43 -0800
Subject: [PATCH 4059/4878] libsubcmd: Fix use-after-free for realloc(..., 0)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 52a9dab6d892763b2a8334a568bd4e2c1a6fde66 upstream.

GCC 12 correctly reports a potential use-after-free condition in the
xrealloc helper. Fix the warning by avoiding an implicit "free(ptr)"
when size == 0:

In file included from help.c:12:
In function 'xrealloc',
    inlined from 'add_cmdname' at help.c:24:2: subcmd-util.h:56:23: error: pointer may be used after 'realloc' [-Werror=use-after-free]
   56 |                 ret = realloc(ptr, size);
      |                       ^~~~~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
   52 |         void *ret = realloc(ptr, size);
      |                     ^~~~~~~~~~~~~~~~~~
subcmd-util.h:58:31: error: pointer may be used after 'realloc' [-Werror=use-after-free]
   58 |                         ret = realloc(ptr, 1);
      |                               ^~~~~~~~~~~~~~~
subcmd-util.h:52:21: note: call to 'realloc' here
   52 |         void *ret = realloc(ptr, size);
      |                     ^~~~~~~~~~~~~~~~~~

Fixes: 2f4ce5ec1d447beb ("perf tools: Finalize subcmd independence")
Reported-by: Valdis Klētnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Kees Kook <keescook@chromium.org>
Tested-by: Valdis Klētnieks <valdis.kletnieks@vt.edu>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: linux-hardening@vger.kernel.org
Cc: Valdis Klētnieks <valdis.kletnieks@vt.edu>
Link: http://lore.kernel.org/lkml/20220213182443.4037039-1-keescook@chromium.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/lib/subcmd/subcmd-util.h | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/tools/lib/subcmd/subcmd-util.h b/tools/lib/subcmd/subcmd-util.h
index 794a375dad360..b2aec04fce8f6 100644
--- a/tools/lib/subcmd/subcmd-util.h
+++ b/tools/lib/subcmd/subcmd-util.h
@@ -50,15 +50,8 @@ static NORETURN inline void die(const char *err, ...)
 static inline void *xrealloc(void *ptr, size_t size)
 {
 	void *ret = realloc(ptr, size);
-	if (!ret && !size)
-		ret = realloc(ptr, 1);
-	if (!ret) {
-		ret = realloc(ptr, size);
-		if (!ret && !size)
-			ret = realloc(ptr, 1);
-		if (!ret)
-			die("Out of memory, realloc failed");
-	}
+	if (!ret)
+		die("Out of memory, realloc failed");
 	return ret;
 }
 
-- 
GitLab


From 016e3ca9c588a6793542d6a8d40c15027654f82e Mon Sep 17 00:00:00 2001
From: Radu Bulie <radu-andrei.bulie@nxp.com>
Date: Mon, 14 Feb 2022 19:45:34 +0200
Subject: [PATCH 4060/4878] dpaa2-eth: Initialize mutex used in one step
 timestamping path

commit 07dd44852be89386ab12210df90a2d78779f3bff upstream.

1588 Single Step Timestamping code path uses a mutex to
enforce atomicity for two events:
- update of ptp single step register
- transmit ptp event packet

Before this patch the mutex was not initialized. This
caused unexpected crashes in the Tx function.

Fixes: c55211892f463 ("dpaa2-eth: support PTP Sync packet one-step timestamping")
Signed-off-by: Radu Bulie <radu-andrei.bulie@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index f917bc9c87969..d89ddc165ec24 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -4225,7 +4225,7 @@ static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev)
 	}
 
 	INIT_WORK(&priv->tx_onestep_tstamp, dpaa2_eth_tx_onestep_tstamp);
-
+	mutex_init(&priv->onestep_tstamp_lock);
 	skb_queue_head_init(&priv->tx_skbs);
 
 	/* Obtain a MC portal */
-- 
GitLab


From d3018a19622115e1126f6abb3657c65877a99410 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 16 Feb 2022 16:01:00 -0300
Subject: [PATCH 4061/4878] perf bpf: Defer freeing string after possible
 strlen() on it

commit 31ded1535e3182778a1d0e5c32711f55da3bc512 upstream.

This was detected by the gcc in Fedora Rawhide's gcc:

  50    11.01 fedora:rawhide                : FAIL gcc version 12.0.1 20220205 (Red Hat 12.0.1-0) (GCC)
        inlined from 'bpf__config_obj' at util/bpf-loader.c:1242:9:
    util/bpf-loader.c:1225:34: error: pointer 'map_opt' may be used after 'free' [-Werror=use-after-free]
     1225 |                 *key_scan_pos += strlen(map_opt);
          |                                  ^~~~~~~~~~~~~~~
    util/bpf-loader.c:1223:9: note: call to 'free' here
     1223 |         free(map_name);
          |         ^~~~~~~~~~~~~~
    cc1: all warnings being treated as errors

So do the calculations on the pointer before freeing it.

Fixes: 04f9bf2bac72480c ("perf bpf-loader: Add missing '*' for key_scan_pos")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang ShaoBo <bobo.shaobowang@huawei.com>
Link: https://lore.kernel.org/lkml/Yg1VtQxKrPpS3uNA@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/bpf-loader.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 0374adcb223c7..ac99c0764bee8 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1215,9 +1215,10 @@ bpf__obj_config_map(struct bpf_object *obj,
 	pr_debug("ERROR: Invalid map config option '%s'\n", map_opt);
 	err = -BPF_LOADER_ERRNO__OBJCONF_MAP_OPT;
 out:
-	free(map_name);
 	if (!err)
 		*key_scan_pos += strlen(map_opt);
+
+	free(map_name);
 	return err;
 }
 
-- 
GitLab


From 67de71b9433185747c85b627b616a58a582ba11f Mon Sep 17 00:00:00 2001
From: Muhammad Usama Anjum <usama.anjum@collabora.com>
Date: Thu, 10 Feb 2022 22:13:23 +0500
Subject: [PATCH 4062/4878] selftests/exec: Add non-regular to TEST_GEN_PROGS

commit a7e793a867ae312cecdeb6f06cceff98263e75dd upstream.

non-regular file needs to be compiled and then copied to the output
directory. Remove it from TEST_PROGS and add it to TEST_GEN_PROGS. This
removes error thrown by rsync when non-regular object isn't found:

rsync: [sender] link_stat "/linux/tools/testing/selftests/exec/non-regular" failed: No such file or directory (2)
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1333) [sender=3.2.3]

Fixes: 0f71241a8e32 ("selftests/exec: add file type errno tests")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/exec/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 12c5e27d32c16..2d7fca446c7f7 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -3,8 +3,8 @@ CFLAGS = -Wall
 CFLAGS += -Wno-nonnull
 CFLAGS += -D_GNU_SOURCE
 
-TEST_PROGS := binfmt_script non-regular
-TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216
+TEST_PROGS := binfmt_script
+TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216 non-regular
 TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir
 # Makefile is a run-time dependency, since it's accessed by the execveat test
 TEST_FILES := Makefile
-- 
GitLab


From b6a5e8f45f896d8ae7524193ab1a0c1dde89268b Mon Sep 17 00:00:00 2001
From: Yu Huang <diwang90@gmail.com>
Date: Sun, 13 Feb 2022 00:08:33 +0800
Subject: [PATCH 4063/4878] ALSA: hda/realtek: Add quirk for Legion Y9000X 2019

commit c07f2c7b45413a9e50ba78630fda04ecfa17b4f2 upstream.

Legion Y9000X 2019 has the same speaker with Y9000X 2020,
but with a different quirk address. Add one quirk entry
to make the speaker work on Y9000X 2019 too.

Signed-off-by: Yu Huang <diwang90@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220212160835.165065-1-diwang90@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index aef017ba00708..52b9023fc9955 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8948,6 +8948,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3824, "Legion Y9000X 2020", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
 	SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x383d, "Legion Y9000X 2019", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
 	SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
-- 
GitLab


From 63b1602c2fd5af84f3fc4eec64d93298237c791e Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 14 Feb 2022 14:04:10 +0100
Subject: [PATCH 4064/4878] ALSA: hda/realtek: Fix deadlock by COEF mutex

commit 2a845837e3d0ddaed493b4c5c4643d7f0542804d upstream.

The recently introduced coef_mutex for Realtek codec seems causing a
deadlock when the relevant code is invoked from the power-off state;
then the HD-audio core tries to power-up internally, and this kicks
off the codec runtime PM code that tries to take the same coef_mutex.

In order to avoid the deadlock, do the temporary power up/down around
the coef_mutex acquisition and release.  This assures that the
power-up sequence runs before the mutex, hence no re-entrance will
happen.

Fixes: b837a9f5ab3b ("ALSA: hda: realtek: Fix race at concurrent COEF updates")
Reported-and-tested-by: Julian Wollrath <jwollrath@web.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220214132838.4db10fca@schienar
Link: https://lore.kernel.org/r/20220214130410.21230-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c | 39 +++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 52b9023fc9955..ed0cfcb05ef0d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -134,6 +134,22 @@ struct alc_spec {
  * COEF access helper functions
  */
 
+static void coef_mutex_lock(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+
+	snd_hda_power_up_pm(codec);
+	mutex_lock(&spec->coef_mutex);
+}
+
+static void coef_mutex_unlock(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+
+	mutex_unlock(&spec->coef_mutex);
+	snd_hda_power_down_pm(codec);
+}
+
 static int __alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 				 unsigned int coef_idx)
 {
@@ -147,12 +163,11 @@ static int __alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 static int alc_read_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 			       unsigned int coef_idx)
 {
-	struct alc_spec *spec = codec->spec;
 	unsigned int val;
 
-	mutex_lock(&spec->coef_mutex);
+	coef_mutex_lock(codec);
 	val = __alc_read_coefex_idx(codec, nid, coef_idx);
-	mutex_unlock(&spec->coef_mutex);
+	coef_mutex_unlock(codec);
 	return val;
 }
 
@@ -169,11 +184,9 @@ static void __alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 				 unsigned int coef_idx, unsigned int coef_val)
 {
-	struct alc_spec *spec = codec->spec;
-
-	mutex_lock(&spec->coef_mutex);
+	coef_mutex_lock(codec);
 	__alc_write_coefex_idx(codec, nid, coef_idx, coef_val);
-	mutex_unlock(&spec->coef_mutex);
+	coef_mutex_unlock(codec);
 }
 
 #define alc_write_coef_idx(codec, coef_idx, coef_val) \
@@ -194,11 +207,9 @@ static void alc_update_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
 				  unsigned int coef_idx, unsigned int mask,
 				  unsigned int bits_set)
 {
-	struct alc_spec *spec = codec->spec;
-
-	mutex_lock(&spec->coef_mutex);
+	coef_mutex_lock(codec);
 	__alc_update_coefex_idx(codec, nid, coef_idx, mask, bits_set);
-	mutex_unlock(&spec->coef_mutex);
+	coef_mutex_unlock(codec);
 }
 
 #define alc_update_coef_idx(codec, coef_idx, mask, bits_set)	\
@@ -231,9 +242,7 @@ struct coef_fw {
 static void alc_process_coef_fw(struct hda_codec *codec,
 				const struct coef_fw *fw)
 {
-	struct alc_spec *spec = codec->spec;
-
-	mutex_lock(&spec->coef_mutex);
+	coef_mutex_lock(codec);
 	for (; fw->nid; fw++) {
 		if (fw->mask == (unsigned short)-1)
 			__alc_write_coefex_idx(codec, fw->nid, fw->idx, fw->val);
@@ -241,7 +250,7 @@ static void alc_process_coef_fw(struct hda_codec *codec,
 			__alc_update_coefex_idx(codec, fw->nid, fw->idx,
 						fw->mask, fw->val);
 	}
-	mutex_unlock(&spec->coef_mutex);
+	coef_mutex_unlock(codec);
 }
 
 /*
-- 
GitLab


From c72c3b597a79508a54857b34b5aa55b49db889b4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 14 Feb 2022 11:00:19 +0100
Subject: [PATCH 4065/4878] ALSA: hda: Fix regression on forced probe mask
 option

commit 6317f7449348a897483a2b4841f7a9190745c81b upstream.

The forced probe mask via probe_mask 0x100 bit doesn't work any longer
as expected since the bus init code was moved and it's clearing the
codec_mask value that was set beforehand.  This patch fixes the
long-time regression by moving the check_probe_mask() call.

Fixes: a41d122449be ("ALSA: hda - Embed bus into controller object")
Reported-by: dmummenschanz@web.de
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/trinity-f018660b-95c9-442b-a2a8-c92a56eb07ed-1644345967148@3c-app-webde-bap22
Link: https://lore.kernel.org/r/20220214100020.8870-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/hda_intel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 3cc936f2cbf8d..d2c0b1d04af39 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1837,8 +1837,6 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 
 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
 
-	check_probe_mask(chip, dev);
-
 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
 		chip->fallback_to_single_cmd = 1;
 	else /* explicitly set to single_cmd or not */
@@ -1866,6 +1864,8 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,
 		chip->bus.core.needs_damn_long_delay = 1;
 	}
 
+	check_probe_mask(chip, dev);
+
 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
 	if (err < 0) {
 		dev_err(card->dev, "Error creating device [card]!\n");
-- 
GitLab


From 1ef76832fef3db0b168be8bdf0514e210be1c5d8 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 14 Feb 2022 11:00:20 +0100
Subject: [PATCH 4066/4878] ALSA: hda: Fix missing codec probe on Shenker Dock
 15

commit dd8e5b161d7fb9cefa1f1d6e35a39b9e1563c8d3 upstream.

By some unknown reason, BIOS on Shenker Dock 15 doesn't set up the
codec mask properly for the onboard audio.  Let's set the forced codec
mask to enable the codec discovery.

Reported-by: dmummenschanz@web.de
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/trinity-f018660b-95c9-442b-a2a8-c92a56eb07ed-1644345967148@3c-app-webde-bap22
Link: https://lore.kernel.org/r/20220214100020.8870-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/hda_intel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index d2c0b1d04af39..600ea241ead79 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1652,6 +1652,7 @@ static const struct snd_pci_quirk probe_mask_list[] = {
 	/* forced codec slots */
 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
+	SND_PCI_QUIRK(0x1558, 0x0351, "Schenker Dock 15", 0x105),
 	/* WinFast VP200 H (Teradici) user reported broken communication */
 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
 	{}
-- 
GitLab


From 0df1badfdfcd94f6bce1b26a1f9d9f4f9d4be92e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Tue, 1 Feb 2022 15:56:26 +0000
Subject: [PATCH 4067/4878] ASoC: ops: Fix stereo change notifications in
 snd_soc_put_volsw()

commit 564778d7b1ea465f9487eedeece7527a033549c5 upstream.

When writing out a stereo control we discard the change notification from
the first channel, meaning that events are only generated based on changes
to the second channel. Ensure that we report a change if either channel
has changed.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220201155629.120510-2-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-ops.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index f24f7354f46fe..81e980156633a 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -308,7 +308,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 	unsigned int sign_bit = mc->sign_bit;
 	unsigned int mask = (1 << fls(max)) - 1;
 	unsigned int invert = mc->invert;
-	int err;
+	int err, ret;
 	bool type_2r = false;
 	unsigned int val2 = 0;
 	unsigned int val, val_mask;
@@ -350,12 +350,18 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 	err = snd_soc_component_update_bits(component, reg, val_mask, val);
 	if (err < 0)
 		return err;
+	ret = err;
 
-	if (type_2r)
+	if (type_2r) {
 		err = snd_soc_component_update_bits(component, reg2, val_mask,
-			val2);
+						    val2);
+		/* Don't discard any error code or drop change flag */
+		if (ret == 0 || err < 0) {
+			ret = err;
+		}
+	}
 
-	return err;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
 
-- 
GitLab


From 54f76366cd013bfcfe2247177407581c40a10458 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Tue, 1 Feb 2022 15:56:28 +0000
Subject: [PATCH 4068/4878] ASoC: ops: Fix stereo change notifications in
 snd_soc_put_volsw_range()

commit 650204ded3703b5817bd4b6a77fa47d333c4f902 upstream.

When writing out a stereo control we discard the change notification from
the first channel, meaning that events are only generated based on changes
to the second channel. Ensure that we report a change if either channel
has changed.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220201155629.120510-4-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-ops.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index 81e980156633a..caa8d45ebb209 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -510,7 +510,7 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 	unsigned int mask = (1 << fls(max)) - 1;
 	unsigned int invert = mc->invert;
 	unsigned int val, val_mask;
-	int ret;
+	int err, ret;
 
 	if (invert)
 		val = (max - ucontrol->value.integer.value[0]) & mask;
@@ -519,9 +519,10 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 	val_mask = mask << shift;
 	val = val << shift;
 
-	ret = snd_soc_component_update_bits(component, reg, val_mask, val);
-	if (ret < 0)
-		return ret;
+	err = snd_soc_component_update_bits(component, reg, val_mask, val);
+	if (err < 0)
+		return err;
+	ret = err;
 
 	if (snd_soc_volsw_is_stereo(mc)) {
 		if (invert)
@@ -531,8 +532,12 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
 		val_mask = mask << shift;
 		val = val << shift;
 
-		ret = snd_soc_component_update_bits(component, rreg, val_mask,
+		err = snd_soc_component_update_bits(component, rreg, val_mask,
 			val);
+		/* Don't discard any error code or drop change flag */
+		if (ret == 0 || err < 0) {
+			ret = err;
+		}
 	}
 
 	return ret;
-- 
GitLab


From fb26219b40467e32b57221b9dfd245c2f7de95f7 Mon Sep 17 00:00:00 2001
From: Anders Roxell <anders.roxell@linaro.org>
Date: Fri, 11 Feb 2022 01:51:13 +0100
Subject: [PATCH 4069/4878] powerpc/lib/sstep: fix 'ptesync' build error

commit fe663df7825811358531dc2e8a52d9eaa5e3515e upstream.

Building tinyconfig with gcc (Debian 11.2.0-16) and assembler (Debian
2.37.90.20220207) the following build error shows up:

  {standard input}: Assembler messages:
  {standard input}:2088: Error: unrecognized opcode: `ptesync'
  make[3]: *** [/builds/linux/scripts/Makefile.build:287: arch/powerpc/lib/sstep.o] Error 1

Add the 'ifdef CONFIG_PPC64' around the 'ptesync' in function
'emulate_update_regs()' to like it is in 'analyse_instr()'. Since it looks like
it got dropped inadvertently by commit 3cdfcbfd32b9 ("powerpc: Change
analyse_instr so it doesn't modify *regs").

A key detail is that analyse_instr() will never recognise lwsync or
ptesync on 32-bit (because of the existing ifdef), and as a result
emulate_update_regs() should never be called with an op specifying
either of those on 32-bit. So removing them from emulate_update_regs()
should be a nop in terms of runtime behaviour.

Fixes: 3cdfcbfd32b9 ("powerpc: Change analyse_instr so it doesn't modify *regs")
Cc: stable@vger.kernel.org # v4.14+
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
[mpe: Add last paragraph of change log mentioning analyse_instr() details]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220211005113.1361436-1-anders.roxell@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/lib/sstep.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index a2e067f68dee8..0edebbbffcdca 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -3062,12 +3062,14 @@ void emulate_update_regs(struct pt_regs *regs, struct instruction_op *op)
 		case BARRIER_EIEIO:
 			eieio();
 			break;
+#ifdef CONFIG_PPC64
 		case BARRIER_LWSYNC:
 			asm volatile("lwsync" : : : "memory");
 			break;
 		case BARRIER_PTESYNC:
 			asm volatile("ptesync" : : : "memory");
 			break;
+#endif
 		}
 		break;
 
-- 
GitLab


From a4eeeaca50199e3f19eb13ac3b7e0bbb93e22de4 Mon Sep 17 00:00:00 2001
From: Christian Eggers <ceggers@arri.de>
Date: Tue, 25 Jan 2022 09:16:19 +0100
Subject: [PATCH 4070/4878] mtd: rawnand: gpmi: don't leak PM reference in
 error path

commit 9161f365c91614e5a3f5c6dcc44c3b1b33bc59c0 upstream.

If gpmi_nfc_apply_timings() fails, the PM runtime usage counter must be
dropped.

Reported-by: Pavel Machek <pavel@denx.de>
Fixes: f53d4c109a66 ("mtd: rawnand: gpmi: Add ERR007117 protection for nfc_apply_timings")
Signed-off-by: Christian Eggers <ceggers@arri.de>
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220125081619.6286-1-ceggers@arri.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 226d527b6c6b7..cb7631145700a 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2291,7 +2291,7 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
 		this->hw.must_apply_timings = false;
 		ret = gpmi_nfc_apply_timings(this);
 		if (ret)
-			return ret;
+			goto out_pm;
 	}
 
 	dev_dbg(this->dev, "%s: %d instructions\n", __func__, op->ninstrs);
@@ -2420,6 +2420,7 @@ unmap:
 
 	this->bch = false;
 
+out_pm:
 	pm_runtime_mark_last_busy(this->dev);
 	pm_runtime_put_autosuspend(this->dev);
 
-- 
GitLab


From 9dcedbe943be8c93722c1ed68b59001b28b0d889 Mon Sep 17 00:00:00 2001
From: Sean Christopherson <seanjc@google.com>
Date: Thu, 20 Jan 2022 01:07:11 +0000
Subject: [PATCH 4071/4878] KVM: SVM: Never reject emulation due to SMAP errata
 for !SEV guests

commit 55467fcd55b89c622e62b4afe60ac0eb2fae91f2 upstream.

Always signal that emulation is possible for !SEV guests regardless of
whether or not the CPU provided a valid instruction byte stream.  KVM can
read all guest state (memory and registers) for !SEV guests, i.e. can
fetch the code stream from memory even if the CPU failed to do so because
of the SMAP errata.

Fixes: 05d5a4863525 ("KVM: SVM: Workaround errata#1096 (insn_len maybe zero on SMAP violation)")
Cc: stable@vger.kernel.org
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Message-Id: <20220120010719.711476-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[jwang: adjust context for kernel 5.10.101]
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/svm/svm.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index d515c8e68314c..7773a765f5489 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4103,6 +4103,10 @@ static bool svm_can_emulate_instruction(struct kvm_vcpu *vcpu, void *insn, int i
 	bool smep, smap, is_user;
 	unsigned long cr4;
 
+	/* Emulation is always possible when KVM has access to all guest state. */
+	if (!sev_guest(vcpu->kvm))
+		return true;
+
 	/*
 	 * Detect and workaround Errata 1096 Fam_17h_00_0Fh.
 	 *
@@ -4151,9 +4155,6 @@ static bool svm_can_emulate_instruction(struct kvm_vcpu *vcpu, void *insn, int i
 	smap = cr4 & X86_CR4_SMAP;
 	is_user = svm_get_cpl(vcpu) == 3;
 	if (smap && (!smep || is_user)) {
-		if (!sev_guest(vcpu->kvm))
-			return true;
-
 		pr_err_ratelimited("KVM: SEV Guest triggered AMD Erratum 1096\n");
 
 		/*
-- 
GitLab


From dc6faa0ede4d190b25980dd648e2be808fc58ff5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Povi=C5=A1er?= <povik+lin@cutebit.org>
Date: Fri, 4 Feb 2022 10:53:01 +0100
Subject: [PATCH 4072/4878] ASoC: tas2770: Insert post reset delay
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 307f31452078792aab94a729fce33200c6e42dc4 upstream.

Per TAS2770 datasheet there must be a 1 ms delay from reset to first
command. So insert delays into the driver where appropriate.

Fixes: 1a476abc723e ("tas2770: add tas2770 smart PA kernel driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220204095301.5554-1-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/tas2770.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c
index 61c3238bc2656..315fd9d971c8c 100644
--- a/sound/soc/codecs/tas2770.c
+++ b/sound/soc/codecs/tas2770.c
@@ -38,10 +38,12 @@ static void tas2770_reset(struct tas2770_priv *tas2770)
 		gpiod_set_value_cansleep(tas2770->reset_gpio, 0);
 		msleep(20);
 		gpiod_set_value_cansleep(tas2770->reset_gpio, 1);
+		usleep_range(1000, 2000);
 	}
 
 	snd_soc_component_write(tas2770->component, TAS2770_SW_RST,
 		TAS2770_RST);
+	usleep_range(1000, 2000);
 }
 
 static int tas2770_set_bias_level(struct snd_soc_component *component,
@@ -110,6 +112,7 @@ static int tas2770_codec_resume(struct snd_soc_component *component)
 
 	if (tas2770->sdz_gpio) {
 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
+		usleep_range(1000, 2000);
 	} else {
 		ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
 						    TAS2770_PWR_CTRL_MASK,
@@ -510,8 +513,10 @@ static int tas2770_codec_probe(struct snd_soc_component *component)
 
 	tas2770->component = component;
 
-	if (tas2770->sdz_gpio)
+	if (tas2770->sdz_gpio) {
 		gpiod_set_value_cansleep(tas2770->sdz_gpio, 1);
+		usleep_range(1000, 2000);
+	}
 
 	tas2770_reset(tas2770);
 
-- 
GitLab


From 598dbaf74b64f51aa09bdbb8d15e957330ff2659 Mon Sep 17 00:00:00 2001
From: Laibin Qiu <qiulaibin@huawei.com>
Date: Sat, 22 Jan 2022 19:10:45 +0800
Subject: [PATCH 4073/4878] block/wbt: fix negative inflight counter when
 remove scsi device

commit e92bc4cd34de2ce454bdea8cd198b8067ee4e123 upstream.

Now that we disable wbt by set WBT_STATE_OFF_DEFAULT in
wbt_disable_default() when switch elevator to bfq. And when
we remove scsi device, wbt will be enabled by wbt_enable_default.
If it become false positive between wbt_wait() and wbt_track()
when submit write request.

The following is the scenario that triggered the problem.

T1                          T2                           T3
                            elevator_switch_mq
                            bfq_init_queue
                            wbt_disable_default <= Set
                            rwb->enable_state (OFF)
Submit_bio
blk_mq_make_request
rq_qos_throttle
<= rwb->enable_state (OFF)
                                                         scsi_remove_device
                                                         sd_remove
                                                         del_gendisk
                                                         blk_unregister_queue
                                                         elv_unregister_queue
                                                         wbt_enable_default
                                                         <= Set rwb->enable_state (ON)
q_qos_track
<= rwb->enable_state (ON)
^^^^^^ this request will mark WBT_TRACKED without inflight add and will
lead to drop rqw->inflight to -1 in wbt_done() which will trigger IO hung.

Fix this by move wbt_enable_default() from elv_unregister to
bfq_exit_queue(). Only re-enable wbt when bfq exit.

Fixes: 76a8040817b4b ("blk-wbt: make sure throttle is enabled properly")

Remove oneline stale comment, and kill one oneshot local variable.

Signed-off-by: Ming Lei <ming.lei@rehdat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/linux-block/20211214133103.551813-1-qiulaibin@huawei.com/
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 block/bfq-iosched.c | 2 ++
 block/elevator.c    | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index b8c2ddc01aec3..8d95bf7765b19 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -6404,6 +6404,8 @@ static void bfq_exit_queue(struct elevator_queue *e)
 	spin_unlock_irq(&bfqd->lock);
 #endif
 
+	wbt_enable_default(bfqd->queue);
+
 	kfree(bfqd);
 }
 
diff --git a/block/elevator.c b/block/elevator.c
index 2a525863d4e92..2f962662c32a1 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -518,8 +518,6 @@ void elv_unregister_queue(struct request_queue *q)
 		kobject_del(&e->kobj);
 
 		e->registered = 0;
-		/* Re-enable throttling in case elevator disabled it */
-		wbt_enable_default(q);
 	}
 }
 
-- 
GitLab


From f9b7385c0f6261f6464b09731ff9700e182cd9b7 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 8 Feb 2022 13:38:23 -0500
Subject: [PATCH 4074/4878] NFS: LOOKUP_DIRECTORY is also ok with symlinks

commit e0caaf75d443e02e55e146fd75fe2efc8aed5540 upstream.

Commit ac795161c936 (NFSv4: Handle case where the lookup of a directory
fails) [1], part of Linux since 5.17-rc2, introduced a regression, where
a symbolic link on an NFS mount to a directory on another NFS does not
resolve(?) the first time it is accessed:

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Fixes: ac795161c936 ("NFSv4: Handle case where the lookup of a directory fails")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Tested-by: Donald Buczek <buczek@molgen.mpg.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/dir.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 682c7b45d8b71..2ad56ff4752c7 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1780,14 +1780,14 @@ no_open:
 	if (!res) {
 		inode = d_inode(dentry);
 		if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
-		    !S_ISDIR(inode->i_mode))
+		    !(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
 			res = ERR_PTR(-ENOTDIR);
 		else if (inode && S_ISREG(inode->i_mode))
 			res = ERR_PTR(-EOPENSTALE);
 	} else if (!IS_ERR(res)) {
 		inode = d_inode(res);
 		if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
-		    !S_ISDIR(inode->i_mode)) {
+		    !(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) {
 			dput(res);
 			res = ERR_PTR(-ENOTDIR);
 		} else if (inode && S_ISREG(inode->i_mode)) {
-- 
GitLab


From 8daa0436ce79f3c2ec3cfff47d68bb0bd43c7d28 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Tue, 15 Feb 2022 18:05:18 -0500
Subject: [PATCH 4075/4878] NFS: Do not report writeback errors in
 nfs_getattr()

commit d19e0183a88306acda07f4a01fedeeffe2a2a06b upstream.

The result of the writeback, whether it is an ENOSPC or an EIO, or
anything else, does not inhibit the NFS client from reporting the
correct file timestamps.

Fixes: 79566ef018f5 ("NFS: Getattr doesn't require data sync semantics")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfs/inode.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 21addb78523d2..62a21682671ef 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -807,12 +807,9 @@ int nfs_getattr(const struct path *path, struct kstat *stat,
 	}
 
 	/* Flush out writes to the server in order to update c/mtime.  */
-	if ((request_mask & (STATX_CTIME|STATX_MTIME)) &&
-			S_ISREG(inode->i_mode)) {
-		err = filemap_write_and_wait(inode->i_mapping);
-		if (err)
-			goto out;
-	}
+	if ((request_mask & (STATX_CTIME | STATX_MTIME)) &&
+	    S_ISREG(inode->i_mode))
+		filemap_write_and_wait(inode->i_mapping);
 
 	/*
 	 * We may force a getattr if the user cares about atime.
-- 
GitLab


From 8c848744c11bf98b95b98d8bd64576d08dd4ad90 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 15 Feb 2022 15:28:00 -0800
Subject: [PATCH 4076/4878] tty: n_tty: do not look ahead for EOL character
 past the end of the buffer

commit 3593030761630e09200072a4bd06468892c27be3 upstream.

Daniel Gibson reports that the n_tty code gets line termination wrong in
very specific cases:

 "If you feed a line with exactly 64 chars + terminating newline, and
  directly afterwards (without reading) another line into a pseudo
  terminal, the the first read() on the other side will return the 64
  char line *without* terminating newline, and the next read() will
  return the missing terminating newline AND the complete next line (if
  it fits in the buffer)"

and bisected the behavior to commit 3b830a9c34d5 ("tty: convert
tty_ldisc_ops 'read()' function to take a kernel pointer").

Now, digging deeper, it turns out that the behavior isn't exactly new:
what changed in commit 3b830a9c34d5 was that the tty line discipline
.read() function is now passed an intermediate kernel buffer rather than
the final user space buffer.

And that intermediate kernel buffer is 64 bytes in size - thus that
special case with exactly 64 bytes plus terminating newline.

The same problem did exist before, but historically the boundary was not
the 64-byte chunk, but the user-supplied buffer size, which is obviously
generally bigger (and potentially bigger than N_TTY_BUF_SIZE, which
would hide the issue entirely).

The reason is that the n_tty canon_copy_from_read_buf() code would look
ahead for the EOL character one byte further than it would actually
copy.  It would then decide that it had found the terminator, and unmark
it as an EOL character - which in turn explains why the next read
wouldn't then be terminated by it.

Now, the reason it did all this in the first place is related to some
historical and pretty obscure EOF behavior, see commit ac8f3bf8832a
("n_tty: Fix poll() after buffer-limited eof push read") and commit
40d5e0905a03 ("n_tty: Fix EOF push handling").

And the reason for the EOL confusion is that we treat EOF as a special
EOL condition, with the EOL character being NUL (aka "__DISABLED_CHAR"
in the kernel sources).

So that EOF look-ahead also affects the normal EOL handling.

This patch just removes the look-ahead that causes problems, because EOL
is much more critical than the historical "EOF in the middle of a line
that coincides with the end of the buffer" handling ever was.

Now, it is possible that we should indeed re-introduce the "look at next
character to see if it's a EOF" behavior, but if so, that should be done
not at the kernel buffer chunk boundary in canon_copy_from_read_buf(),
but at a higher level, when we run out of the user buffer.

In particular, the place to do that would be at the top of
'n_tty_read()', where we check if it's a continuation of a previously
started read, and there is no more buffer space left, we could decide to
just eat the __DISABLED_CHAR at that point.

But that would be a separate patch, because I suspect nobody actually
cares, and I'd like to get a report about it before bothering.

Fixes: 3b830a9c34d5 ("tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer")
Fixes: ac8f3bf8832a ("n_tty: Fix  poll() after buffer-limited eof push read")
Fixes: 40d5e0905a03 ("n_tty: Fix EOF push handling")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215611
Reported-and-tested-by: Daniel Gibson <metalcaedes@gmail.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 128461bd04bb9..58190135efb7d 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2024,7 +2024,7 @@ static bool canon_copy_from_read_buf(struct tty_struct *tty,
 		return false;
 
 	canon_head = smp_load_acquire(&ldata->canon_head);
-	n = min(*nr + 1, canon_head - ldata->read_tail);
+	n = min(*nr, canon_head - ldata->read_tail);
 
 	tail = ldata->read_tail & (N_TTY_BUF_SIZE - 1);
 	size = min_t(size_t, tail + n, N_TTY_BUF_SIZE);
@@ -2046,10 +2046,8 @@ static bool canon_copy_from_read_buf(struct tty_struct *tty,
 		n += N_TTY_BUF_SIZE;
 	c = n + found;
 
-	if (!found || read_buf(ldata, eol) != __DISABLED_CHAR) {
-		c = min(*nr, c);
+	if (!found || read_buf(ldata, eol) != __DISABLED_CHAR)
 		n = c;
-	}
 
 	n_tty_trace("%s: eol:%zu found:%d n:%zu c:%zu tail:%zu more:%zu\n",
 		    __func__, eol, found, n, c, tail, more);
-- 
GitLab


From 1a49b1b0b0cb2170fc6e5ab0613eb8139302b6c7 Mon Sep 17 00:00:00 2001
From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Mon, 3 Jan 2022 03:03:15 +0000
Subject: [PATCH 4077/4878] mtd: rawnand: qcom: Fix clock sequencing in
 qcom_nandc_probe()

commit 5c23b3f965bc9ee696bf2ed4bdc54d339dd9a455 upstream.

Interacting with a NAND chip on an IPQ6018 I found that the qcomsmem NAND
partition parser was returning -EPROBE_DEFER waiting for the main smem
driver to load.

This caused the board to reset. Playing about with the probe() function
shows that the problem lies in the core clock being switched off before the
nandc_unalloc() routine has completed.

If we look at how qcom_nandc_remove() tears down allocated resources we see
the expected order is

qcom_nandc_unalloc(nandc);

clk_disable_unprepare(nandc->aon_clk);
clk_disable_unprepare(nandc->core_clk);

dma_unmap_resource(&pdev->dev, nandc->base_dma, resource_size(res),
		   DMA_BIDIRECTIONAL, 0);

Tweaking probe() to both bring up and tear-down in that order removes the
reset if we end up deferring elsewhere.

Fixes: c76b78d8ec05 ("mtd: nand: Qualcomm NAND controller driver")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220103030316.58301-2-bryan.odonoghue@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/qcom_nandc.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index b99d2e9d1e2c4..bb181e18c7c52 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -2,7 +2,6 @@
 /*
  * Copyright (c) 2016, The Linux Foundation. All rights reserved.
  */
-
 #include <linux/clk.h>
 #include <linux/slab.h>
 #include <linux/bitops.h>
@@ -2968,10 +2967,6 @@ static int qcom_nandc_probe(struct platform_device *pdev)
 	if (!nandc->base_dma)
 		return -ENXIO;
 
-	ret = qcom_nandc_alloc(nandc);
-	if (ret)
-		goto err_nandc_alloc;
-
 	ret = clk_prepare_enable(nandc->core_clk);
 	if (ret)
 		goto err_core_clk;
@@ -2980,6 +2975,10 @@ static int qcom_nandc_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_aon_clk;
 
+	ret = qcom_nandc_alloc(nandc);
+	if (ret)
+		goto err_nandc_alloc;
+
 	ret = qcom_nandc_setup(nandc);
 	if (ret)
 		goto err_setup;
@@ -2991,15 +2990,14 @@ static int qcom_nandc_probe(struct platform_device *pdev)
 	return 0;
 
 err_setup:
+	qcom_nandc_unalloc(nandc);
+err_nandc_alloc:
 	clk_disable_unprepare(nandc->aon_clk);
 err_aon_clk:
 	clk_disable_unprepare(nandc->core_clk);
 err_core_clk:
-	qcom_nandc_unalloc(nandc);
-err_nandc_alloc:
 	dma_unmap_resource(dev, res->start, resource_size(res),
 			   DMA_BIDIRECTIONAL, 0);
-
 	return ret;
 }
 
-- 
GitLab


From a176d559e826672c5b07ca42d63bfb3975c756f7 Mon Sep 17 00:00:00 2001
From: david regan <dregan@mail.com>
Date: Wed, 26 Jan 2022 23:43:44 +0100
Subject: [PATCH 4078/4878] mtd: rawnand: brcmnand: Fixed incorrect sub-page
 ECC status

commit 36415a7964711822e63695ea67fede63979054d9 upstream.

The brcmnand driver contains a bug in which if a page (example 2k byte)
is read from the parallel/ONFI NAND and within that page a subpage (512
byte) has correctable errors which is followed by a subpage with
uncorrectable errors, the page read will return the wrong status of
correctable (as opposed to the actual status of uncorrectable.)

The bug is in function brcmnand_read_by_pio where there is a check for
uncorrectable bits which will be preempted if a previous status for
correctable bits is detected.

The fix is to stop checking for bad bits only if we already have a bad
bits status.

Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Signed-off-by: david regan <dregan@mail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/trinity-478e0c09-9134-40e8-8f8c-31c371225eda-1643237024774@3c-app-mailcom-lxa02
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/brcmnand/brcmnand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index 909b14cc8e55c..580b91cbd18de 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -2062,7 +2062,7 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip,
 					mtd->oobsize / trans,
 					host->hwcfg.sector_size_1k);
 
-		if (!ret) {
+		if (ret != -EBADMSG) {
 			*err_addr = brcmnand_get_uncorrecc_addr(ctrl);
 
 			if (*err_addr)
-- 
GitLab


From 91d8866ca55232d21995a3d54fac96de33c9e20c Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 4 Feb 2022 01:30:08 +0800
Subject: [PATCH 4079/4878] Drivers: hv: vmbus: Fix memory leak in
 vmbus_add_channel_kobj
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 8bc69f86328e87a0ffa79438430cc82f3aa6a194 ]

kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()：

   If this function returns an error, kobject_put() must be called to
   properly clean up the memory associated with the object.

Fix memory leak by calling kobject_put().

Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Juan Vazquez <juvazq@linux.microsoft.com>
Link: https://lore.kernel.org/r/20220203173008.43480-1-linmq006@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hv/vmbus_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index a5a402e776c77..362da2a83b470 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1944,8 +1944,10 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel)
 	kobj->kset = dev->channels_kset;
 	ret = kobject_init_and_add(kobj, &vmbus_chan_ktype, NULL,
 				   "%u", relid);
-	if (ret)
+	if (ret) {
+		kobject_put(kobj);
 		return ret;
+	}
 
 	ret = sysfs_create_group(kobj, &vmbus_chan_group);
 
@@ -1954,6 +1956,7 @@ int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel)
 		 * The calling functions' error handling paths will cleanup the
 		 * empty channel directory.
 		 */
+		kobject_put(kobj);
 		dev_err(device, "Unable to set up channel sysfs files\n");
 		return ret;
 	}
-- 
GitLab


From 99cd2a043760e4fcf06fe3c67e9885a2d64c986d Mon Sep 17 00:00:00 2001
From: Like Xu <likexu@tencent.com>
Date: Tue, 30 Nov 2021 15:42:17 +0800
Subject: [PATCH 4080/4878] KVM: x86/pmu: Refactoring find_arch_event() to
 pmc_perf_hw_id()

[ Upstream commit 7c174f305cbee6bdba5018aae02b84369e7ab995 ]

The find_arch_event() returns a "unsigned int" value,
which is used by the pmc_reprogram_counter() to
program a PERF_TYPE_HARDWARE type perf_event.

The returned value is actually the kernel defined generic
perf_hw_id, let's rename it to pmc_perf_hw_id() with simpler
incoming parameters for better self-explanation.

Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20211130074221.93635-3-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/pmu.c           | 8 +-------
 arch/x86/kvm/pmu.h           | 3 +--
 arch/x86/kvm/svm/pmu.c       | 8 ++++----
 arch/x86/kvm/vmx/pmu_intel.c | 9 +++++----
 4 files changed, 11 insertions(+), 17 deletions(-)

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 67741d2a03085..20092a56de8b0 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -171,7 +171,6 @@ static bool pmc_resume_counter(struct kvm_pmc *pmc)
 void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
 {
 	unsigned config, type = PERF_TYPE_RAW;
-	u8 event_select, unit_mask;
 	struct kvm *kvm = pmc->vcpu->kvm;
 	struct kvm_pmu_event_filter *filter;
 	int i;
@@ -203,17 +202,12 @@ void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
 	if (!allow_event)
 		return;
 
-	event_select = eventsel & ARCH_PERFMON_EVENTSEL_EVENT;
-	unit_mask = (eventsel & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;
-
 	if (!(eventsel & (ARCH_PERFMON_EVENTSEL_EDGE |
 			  ARCH_PERFMON_EVENTSEL_INV |
 			  ARCH_PERFMON_EVENTSEL_CMASK |
 			  HSW_IN_TX |
 			  HSW_IN_TX_CHECKPOINTED))) {
-		config = kvm_x86_ops.pmu_ops->find_arch_event(pmc_to_pmu(pmc),
-						      event_select,
-						      unit_mask);
+		config = kvm_x86_ops.pmu_ops->pmc_perf_hw_id(pmc);
 		if (config != PERF_COUNT_HW_MAX)
 			type = PERF_TYPE_HARDWARE;
 	}
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
index 067fef51760c4..1a44e29e73330 100644
--- a/arch/x86/kvm/pmu.h
+++ b/arch/x86/kvm/pmu.h
@@ -24,8 +24,7 @@ struct kvm_event_hw_type_mapping {
 };
 
 struct kvm_pmu_ops {
-	unsigned (*find_arch_event)(struct kvm_pmu *pmu, u8 event_select,
-				    u8 unit_mask);
+	unsigned int (*pmc_perf_hw_id)(struct kvm_pmc *pmc);
 	unsigned (*find_fixed_event)(int idx);
 	bool (*pmc_is_enabled)(struct kvm_pmc *pmc);
 	struct kvm_pmc *(*pmc_idx_to_pmc)(struct kvm_pmu *pmu, int pmc_idx);
diff --git a/arch/x86/kvm/svm/pmu.c b/arch/x86/kvm/svm/pmu.c
index 5a5c165a30ed1..4e7093bcb64b6 100644
--- a/arch/x86/kvm/svm/pmu.c
+++ b/arch/x86/kvm/svm/pmu.c
@@ -126,10 +126,10 @@ static inline struct kvm_pmc *get_gp_pmc_amd(struct kvm_pmu *pmu, u32 msr,
 	return &pmu->gp_counters[msr_to_index(msr)];
 }
 
-static unsigned amd_find_arch_event(struct kvm_pmu *pmu,
-				    u8 event_select,
-				    u8 unit_mask)
+static unsigned int amd_pmc_perf_hw_id(struct kvm_pmc *pmc)
 {
+	u8 event_select = pmc->eventsel & ARCH_PERFMON_EVENTSEL_EVENT;
+	u8 unit_mask = (pmc->eventsel & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(amd_event_mapping); i++)
@@ -312,7 +312,7 @@ static void amd_pmu_reset(struct kvm_vcpu *vcpu)
 }
 
 struct kvm_pmu_ops amd_pmu_ops = {
-	.find_arch_event = amd_find_arch_event,
+	.pmc_perf_hw_id = amd_pmc_perf_hw_id,
 	.find_fixed_event = amd_find_fixed_event,
 	.pmc_is_enabled = amd_pmc_is_enabled,
 	.pmc_idx_to_pmc = amd_pmc_idx_to_pmc,
diff --git a/arch/x86/kvm/vmx/pmu_intel.c b/arch/x86/kvm/vmx/pmu_intel.c
index cdf5f34518f43..bd70c1d7f3458 100644
--- a/arch/x86/kvm/vmx/pmu_intel.c
+++ b/arch/x86/kvm/vmx/pmu_intel.c
@@ -68,10 +68,11 @@ static void global_ctrl_changed(struct kvm_pmu *pmu, u64 data)
 		reprogram_counter(pmu, bit);
 }
 
-static unsigned intel_find_arch_event(struct kvm_pmu *pmu,
-				      u8 event_select,
-				      u8 unit_mask)
+static unsigned int intel_pmc_perf_hw_id(struct kvm_pmc *pmc)
 {
+	struct kvm_pmu *pmu = pmc_to_pmu(pmc);
+	u8 event_select = pmc->eventsel & ARCH_PERFMON_EVENTSEL_EVENT;
+	u8 unit_mask = (pmc->eventsel & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(intel_arch_events); i++)
@@ -432,7 +433,7 @@ static void intel_pmu_reset(struct kvm_vcpu *vcpu)
 }
 
 struct kvm_pmu_ops intel_pmu_ops = {
-	.find_arch_event = intel_find_arch_event,
+	.pmc_perf_hw_id = intel_pmc_perf_hw_id,
 	.find_fixed_event = intel_find_fixed_event,
 	.pmc_is_enabled = intel_pmc_is_enabled,
 	.pmc_idx_to_pmc = intel_pmc_idx_to_pmc,
-- 
GitLab


From 0ee4bb8ce8b8279a2fa811efccc9422d0b6d9bff Mon Sep 17 00:00:00 2001
From: Jim Mattson <jmattson@google.com>
Date: Wed, 2 Feb 2022 17:48:12 -0800
Subject: [PATCH 4081/4878] KVM: x86/pmu: Don't truncate the PerfEvtSeln MSR
 when creating a perf event

[ Upstream commit b8bfee85f1307426e0242d654f3a14c06ef639c5 ]

AMD's event select is 3 nybbles, with the high nybble in bits 35:32 of
a PerfEvtSeln MSR. Don't drop the high nybble when setting up the
config field of a perf_event_attr structure for a call to
perf_event_create_kernel_counter().

Fixes: ca724305a2b0 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220203014813.2130559-1-jmattson@google.com>
Reviewed-by: David Dunn <daviddunn@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/pmu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 20092a56de8b0..2d91e39dbdf67 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -95,7 +95,7 @@ static void kvm_perf_overflow_intr(struct perf_event *perf_event,
 }
 
 static void pmc_reprogram_counter(struct kvm_pmc *pmc, u32 type,
-				  unsigned config, bool exclude_user,
+				  u64 config, bool exclude_user,
 				  bool exclude_kernel, bool intr,
 				  bool in_tx, bool in_tx_cp)
 {
@@ -170,7 +170,8 @@ static bool pmc_resume_counter(struct kvm_pmc *pmc)
 
 void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
 {
-	unsigned config, type = PERF_TYPE_RAW;
+	u64 config;
+	u32 type = PERF_TYPE_RAW;
 	struct kvm *kvm = pmc->vcpu->kvm;
 	struct kvm_pmu_event_filter *filter;
 	int i;
-- 
GitLab


From fb00319afb72be8f7b2661b91293f005af00d775 Mon Sep 17 00:00:00 2001
From: Jim Mattson <jmattson@google.com>
Date: Wed, 2 Feb 2022 17:48:13 -0800
Subject: [PATCH 4082/4878] KVM: x86/pmu: Use AMD64_RAW_EVENT_MASK for
 PERF_TYPE_RAW

[ Upstream commit 710c476514313c74045c41c0571bb5178fd16e3d ]

AMD's event select is 3 nybbles, with the high nybble in bits 35:32 of
a PerfEvtSeln MSR. Don't mask off the high nybble when configuring a
RAW perf event.

Fixes: ca724305a2b0 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220203014813.2130559-2-jmattson@google.com>
Reviewed-by: David Dunn <daviddunn@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kvm/pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 2d91e39dbdf67..2f83b5d948b33 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -214,7 +214,7 @@ void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
 	}
 
 	if (type == PERF_TYPE_RAW)
-		config = eventsel & X86_RAW_EVENT_MASK;
+		config = eventsel & AMD64_RAW_EVENT_MASK;
 
 	if (pmc->current_config == eventsel && pmc_resume_counter(pmc))
 		return;
-- 
GitLab


From 521dcc107e3923553c9c09021d2202460cdf3667 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Date: Mon, 8 Feb 2021 16:45:49 -0500
Subject: [PATCH 4083/4878] NFS: Don't set NFS_INO_INVALID_XATTR if there is no
 xattr cache

[ Upstream commit 848fdd62399c638e65a1512616acaa5de7d5c5e8 ]

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/inode.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 62a21682671ef..f27ecc2e490f2 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -195,6 +195,18 @@ bool nfs_check_cache_invalid(struct inode *inode, unsigned long flags)
 }
 EXPORT_SYMBOL_GPL(nfs_check_cache_invalid);
 
+#ifdef CONFIG_NFS_V4_2
+static bool nfs_has_xattr_cache(const struct nfs_inode *nfsi)
+{
+	return nfsi->xattr_cache != NULL;
+}
+#else
+static bool nfs_has_xattr_cache(const struct nfs_inode *nfsi)
+{
+	return false;
+}
+#endif
+
 static void nfs_set_cache_invalid(struct inode *inode, unsigned long flags)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
@@ -210,6 +222,8 @@ static void nfs_set_cache_invalid(struct inode *inode, unsigned long flags)
 	} else if (flags & NFS_INO_REVAL_PAGECACHE)
 		flags |= NFS_INO_INVALID_CHANGE | NFS_INO_INVALID_SIZE;
 
+	if (!nfs_has_xattr_cache(nfsi))
+		flags &= ~NFS_INO_INVALID_XATTR;
 	if (inode->i_mapping->nrpages == 0)
 		flags &= ~(NFS_INO_INVALID_DATA|NFS_INO_DATA_INVAL_DEFER);
 	nfsi->cache_validity |= flags;
-- 
GitLab


From 6932353af74cc1b0c081d7a75b0fb3f4da7f5329 Mon Sep 17 00:00:00 2001
From: Wan Jiabing <wanjiabing@vivo.com>
Date: Thu, 14 Oct 2021 04:57:19 -0400
Subject: [PATCH 4084/4878] ARM: OMAP2+: hwmod: Add of_node_put() before break

[ Upstream commit 80c469a0a03763f814715f3d12b6f3964c7423e8 ]

Fix following coccicheck warning:
./arch/arm/mach-omap2/omap_hwmod.c:753:1-23: WARNING: Function
for_each_matching_node should have of_node_put() before break

Early exits from for_each_matching_node should decrement the
node reference counter.

Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-omap2/omap_hwmod.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 9443f129859b2..1fd67abca055b 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -749,8 +749,10 @@ static int __init _init_clkctrl_providers(void)
 
 	for_each_matching_node(np, ti_clkctrl_match_table) {
 		ret = _setup_clkctrl_provider(np);
-		if (ret)
+		if (ret) {
+			of_node_put(np);
 			break;
+		}
 	}
 
 	return ret;
-- 
GitLab


From 717f2fa858228b2bd2ffb7aad3c68b55828d4092 Mon Sep 17 00:00:00 2001
From: Ye Guojin <ye.guojin@zte.com.cn>
Date: Tue, 16 Nov 2021 06:27:26 +0000
Subject: [PATCH 4085/4878] ARM: OMAP2+: adjust the location of put_device()
 call in omapdss_init_of

[ Upstream commit 34596ba380b03d181e24efd50e2f21045bde3696 ]

This was found by coccicheck:
./arch/arm/mach-omap2/display.c, 272, 1-7, ERROR missing put_device;
call of_find_device_by_node on line 258, but without a corresponding
object release within this function.

Move the put_device() call before the if judgment.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-omap2/display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 2000fca6bd4e6..6098666e928d0 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -263,9 +263,9 @@ static int __init omapdss_init_of(void)
 	}
 
 	r = of_platform_populate(node, NULL, NULL, &pdev->dev);
+	put_device(&pdev->dev);
 	if (r) {
 		pr_err("Unable to populate DSS submodule devices\n");
-		put_device(&pdev->dev);
 		return r;
 	}
 
-- 
GitLab


From 98bc06c46d1fc9ff86c39e59cd559c2cc8c3228b Mon Sep 17 00:00:00 2001
From: Al Cooper <alcooperx@gmail.com>
Date: Wed, 1 Dec 2021 13:06:51 -0500
Subject: [PATCH 4086/4878] phy: usb: Leave some clocks running during suspend

[ Upstream commit 42fed57046fc74586d7058bd51a1c10ac9c690cb ]

The PHY client driver does a phy_exit() call on suspend or rmmod and
the PHY driver needs to know the difference because some clocks need
to be kept running for suspend but can be shutdown on unbind/rmmod
(or if there are no PHY clients at all).

The fix is to use a PM notifier so the driver can tell if a PHY
client is calling exit() because of a system suspend or a driver
unbind/rmmod.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211201180653.35097-2-alcooperx@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/broadcom/phy-brcm-usb.c | 38 +++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index 99fbc7e4138be..b901a0d4e2a80 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -17,6 +17,7 @@
 #include <linux/soc/brcmstb/brcmstb.h>
 #include <dt-bindings/phy/phy.h>
 #include <linux/mfd/syscon.h>
+#include <linux/suspend.h>
 
 #include "phy-brcm-usb-init.h"
 
@@ -69,12 +70,35 @@ struct brcm_usb_phy_data {
 	int			init_count;
 	int			wake_irq;
 	struct brcm_usb_phy	phys[BRCM_USB_PHY_ID_MAX];
+	struct notifier_block	pm_notifier;
+	bool			pm_active;
 };
 
 static s8 *node_reg_names[BRCM_REGS_MAX] = {
 	"crtl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
 };
 
+static int brcm_pm_notifier(struct notifier_block *notifier,
+			    unsigned long pm_event,
+			    void *unused)
+{
+	struct brcm_usb_phy_data *priv =
+		container_of(notifier, struct brcm_usb_phy_data, pm_notifier);
+
+	switch (pm_event) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		priv->pm_active = true;
+		break;
+	case PM_POST_RESTORE:
+	case PM_POST_HIBERNATION:
+	case PM_POST_SUSPEND:
+		priv->pm_active = false;
+		break;
+	}
+	return NOTIFY_DONE;
+}
+
 static irqreturn_t brcm_usb_phy_wake_isr(int irq, void *dev_id)
 {
 	struct phy *gphy = dev_id;
@@ -90,6 +114,9 @@ static int brcm_usb_phy_init(struct phy *gphy)
 	struct brcm_usb_phy_data *priv =
 		container_of(phy, struct brcm_usb_phy_data, phys[phy->id]);
 
+	if (priv->pm_active)
+		return 0;
+
 	/*
 	 * Use a lock to make sure a second caller waits until
 	 * the base phy is inited before using it.
@@ -119,6 +146,9 @@ static int brcm_usb_phy_exit(struct phy *gphy)
 	struct brcm_usb_phy_data *priv =
 		container_of(phy, struct brcm_usb_phy_data, phys[phy->id]);
 
+	if (priv->pm_active)
+		return 0;
+
 	dev_dbg(&gphy->dev, "EXIT\n");
 	if (phy->id == BRCM_USB_PHY_2_0)
 		brcm_usb_uninit_eohci(&priv->ini);
@@ -484,6 +514,9 @@ static int brcm_usb_phy_probe(struct platform_device *pdev)
 	if (err)
 		return err;
 
+	priv->pm_notifier.notifier_call = brcm_pm_notifier;
+	register_pm_notifier(&priv->pm_notifier);
+
 	mutex_init(&priv->mutex);
 
 	/* make sure invert settings are correct */
@@ -524,7 +557,10 @@ static int brcm_usb_phy_probe(struct platform_device *pdev)
 
 static int brcm_usb_phy_remove(struct platform_device *pdev)
 {
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(&pdev->dev);
+
 	sysfs_remove_group(&pdev->dev.kobj, &brcm_usb_phy_group);
+	unregister_pm_notifier(&priv->pm_notifier);
 
 	return 0;
 }
@@ -535,6 +571,7 @@ static int brcm_usb_phy_suspend(struct device *dev)
 	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
 
 	if (priv->init_count) {
+		dev_dbg(dev, "SUSPEND\n");
 		priv->ini.wake_enabled = device_may_wakeup(dev);
 		if (priv->phys[BRCM_USB_PHY_3_0].inited)
 			brcm_usb_uninit_xhci(&priv->ini);
@@ -574,6 +611,7 @@ static int brcm_usb_phy_resume(struct device *dev)
 	 * Uninitialize anything that wasn't previously initialized.
 	 */
 	if (priv->init_count) {
+		dev_dbg(dev, "RESUME\n");
 		if (priv->wake_irq >= 0)
 			disable_irq_wake(priv->wake_irq);
 		brcm_usb_init_common(&priv->ini);
-- 
GitLab


From 1ab48248573b486d8ee4d9cb07545844548b9ba4 Mon Sep 17 00:00:00 2001
From: Guo Ren <guoren@linux.alibaba.com>
Date: Sun, 30 Jan 2022 21:56:34 +0800
Subject: [PATCH 4087/4878] irqchip/sifive-plic: Add missing thead,c900-plic
 match string

[ Upstream commit 1d4df649cbb4b26d19bea38ecff4b65b10a1bbca ]

The thead,c900-plic has been used in opensbi to distinguish
PLIC [1]. Although PLICs have the same behaviors in Linux,
they are different hardware with some custom initializing in
firmware(opensbi).

Qute opensbi patch commit-msg by Samuel:

  The T-HEAD PLIC implementation requires setting a delegation bit
  to allow access from S-mode. Now that the T-HEAD PLIC has its own
  compatible string, set this bit automatically from the PLIC driver,
  instead of reaching into the PLIC's MMIO space from another driver.

[1]: https://github.com/riscv-software-src/opensbi/commit/78c2b19218bd62653b9fb31623a42ced45f38ea6

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Anup Patel <anup@brainfault.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Samuel Holland <samuel@sholland.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220130135634.1213301-3-guoren@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-sifive-plic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 926e55d838cb1..bd99ee0ae433d 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -400,3 +400,4 @@ out_free_priv:
 
 IRQCHIP_DECLARE(sifive_plic, "sifive,plic-1.0.0", plic_init);
 IRQCHIP_DECLARE(riscv_plic0, "riscv,plic0", plic_init); /* for legacy systems */
+IRQCHIP_DECLARE(thead_c900_plic, "thead,c900-plic", plic_init); /* for firmware driver */
-- 
GitLab


From eefb68794f9434c9a0545a9bb686967a4fca2467 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 28 Jan 2022 13:13:32 +0100
Subject: [PATCH 4088/4878] netfilter: conntrack: don't refresh sctp entries in
 closed state

[ Upstream commit 77b337196a9d87f3d6bb9b07c0436ecafbffda1e ]

Vivek Thrivikraman reported:
 An SCTP server application which is accessed continuously by client
 application.
 When the session disconnects the client retries to establish a connection.
 After restart of SCTP server application the session is not established
 because of stale conntrack entry with connection state CLOSED as below.

 (removing this entry manually established new connection):

 sctp 9 CLOSED src=10.141.189.233 [..]  [ASSURED]

Just skip timeout update of closed entries, we don't want them to
stay around forever.

Reported-and-tested-by: Vivek Thrivikraman <vivek.thrivikraman@est.tech>
Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1579
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_conntrack_proto_sctp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 810cca24b3990..7626f3e1c70a7 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -489,6 +489,15 @@ int nf_conntrack_sctp_packet(struct nf_conn *ct,
 			pr_debug("Setting vtag %x for dir %d\n",
 				 ih->init_tag, !dir);
 			ct->proto.sctp.vtag[!dir] = ih->init_tag;
+
+			/* don't renew timeout on init retransmit so
+			 * port reuse by client or NAT middlebox cannot
+			 * keep entry alive indefinitely (incl. nat info).
+			 */
+			if (new_state == SCTP_CONNTRACK_CLOSED &&
+			    old_state == SCTP_CONNTRACK_CLOSED &&
+			    nf_ct_is_confirmed(ct))
+				ignore = true;
 		}
 
 		ct->proto.sctp.state = new_state;
-- 
GitLab


From 605080f19eb7edde039cec7bee1646b2eefeaea2 Mon Sep 17 00:00:00 2001
From: Christian Hewitt <christianshewitt@gmail.com>
Date: Wed, 26 Jan 2022 04:49:52 +0000
Subject: [PATCH 4089/4878] arm64: dts: meson-gx: add ATF BL32 reserved-memory
 region

[ Upstream commit 76577c9137456febb05b0e17d244113196a98968 ]

Add an additional reserved memory region for the BL32 trusted firmware
present in many devices that boot from Amlogic vendor u-boot.

Suggested-by: Mateusz Krzak <kszaquitto@gmail.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220126044954.19069-2-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 0edd137151f89..47cbb0a1eb183 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -43,6 +43,12 @@
 			no-map;
 		};
 
+		/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
+		secmon_reserved_bl32: secmon@5300000 {
+			reg = <0x0 0x05300000 0x0 0x2000000>;
+			no-map;
+		};
+
 		linux,cma {
 			compatible = "shared-dma-pool";
 			reusable;
-- 
GitLab


From 1415f22ee541a708ded842075015f4407a8743cf Mon Sep 17 00:00:00 2001
From: Christian Hewitt <christianshewitt@gmail.com>
Date: Wed, 26 Jan 2022 04:49:53 +0000
Subject: [PATCH 4090/4878] arm64: dts: meson-g12: add ATF BL32 reserved-memory
 region

[ Upstream commit 08982a1b3aa2611c9c711d24825c9002d28536f4 ]

Add an additional reserved memory region for the BL32 trusted firmware
present in many devices that boot from Amlogic vendor u-boot.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220126044954.19069-3-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 7342c8a2b322d..075153a4d49fc 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -101,6 +101,12 @@
 			no-map;
 		};
 
+		/* 32 MiB reserved for ARM Trusted Firmware (BL32) */
+		secmon_reserved_bl32: secmon@5300000 {
+			reg = <0x0 0x05300000 0x0 0x2000000>;
+			no-map;
+		};
+
 		linux,cma {
 			compatible = "shared-dma-pool";
 			reusable;
-- 
GitLab


From 429ef36c4fc497a9a958768c3ffb75c139abfa1e Mon Sep 17 00:00:00 2001
From: Christian Hewitt <christianshewitt@gmail.com>
Date: Wed, 26 Jan 2022 04:49:54 +0000
Subject: [PATCH 4091/4878] arm64: dts: meson-g12: drop BL32 region from
 SEI510/SEI610

[ Upstream commit f26573e2bc9dfd551a0d5c6971f18cc546543312 ]

The BL32/TEE reserved-memory region is now inherited from the common
family dtsi (meson-g12-common) so we can drop it from board files.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220126044954.19069-4-christianshewitt@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts | 8 --------
 arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts  | 8 --------
 2 files changed, 16 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
index 4d5b3e514b514..71f91e31c1818 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts
@@ -157,14 +157,6 @@
 		regulator-always-on;
 	};
 
-	reserved-memory {
-		/* TEE Reserved Memory */
-		bl32_reserved: bl32@5000000 {
-			reg = <0x0 0x05300000 0x0 0x2000000>;
-			no-map;
-		};
-	};
-
 	sdio_pwrseq: sdio-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
index 5ab139a34c018..c21178e9c6064 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
@@ -203,14 +203,6 @@
 		regulator-always-on;
 	};
 
-	reserved-memory {
-		/* TEE Reserved Memory */
-		bl32_reserved: bl32@5000000 {
-			reg = <0x0 0x05300000 0x0 0x2000000>;
-			no-map;
-		};
-	};
-
 	sdio_pwrseq: sdio-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
-- 
GitLab


From 531a56c2e0bfe7269b90eb68035e4d602847ca8b Mon Sep 17 00:00:00 2001
From: Axel Rasmussen <axelrasmussen@google.com>
Date: Thu, 27 Jan 2022 13:29:51 -0800
Subject: [PATCH 4092/4878] pidfd: fix test failure due to stack overflow on
 some arches

[ Upstream commit 4cbd93c3c110447adc66cb67c08af21f939ae2d7 ]

When running the pidfd_fdinfo_test on arm64, it fails for me. After some
digging, the reason is that the child exits due to SIGBUS, because it
overflows the 1024 byte stack we've reserved for it.

To fix the issue, increase the stack size to 8192 bytes (this number is
somewhat arbitrary, and was arrived at through experimentation -- I kept
doubling until the failure no longer occurred).

Also, let's make the issue easier to debug. wait_for_pid() returns an
ambiguous value: it may return -1 in all of these cases:

1. waitpid() itself returned -1
2. waitpid() returned success, but we found !WIFEXITED(status).
3. The child process exited, but it did so with a -1 exit code.

There's no way for the caller to tell the difference. So, at least log
which occurred, so the test runner can debug things.

While debugging this, I found that we had !WIFEXITED(), because the
child exited due to a signal. This seems like a reasonably common case,
so also print out whether or not we have WIFSIGNALED(), and the
associated WTERMSIG() (if any). This lets us see the SIGBUS I'm fixing
clearly when it occurs.

Finally, I'm suspicious of allocating the child's stack on our stack.
man clone(2) suggests that the correct way to do this is with mmap(),
and in particular by setting MAP_STACK. So, switch to doing it that way
instead.

Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/pidfd/pidfd.h         | 13 ++++++++---
 .../selftests/pidfd/pidfd_fdinfo_test.c       | 22 +++++++++++++++----
 2 files changed, 28 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h
index 01f8d3c0cf2cb..6922d6417e1cf 100644
--- a/tools/testing/selftests/pidfd/pidfd.h
+++ b/tools/testing/selftests/pidfd/pidfd.h
@@ -68,7 +68,7 @@
 #define PIDFD_SKIP 3
 #define PIDFD_XFAIL 4
 
-int wait_for_pid(pid_t pid)
+static inline int wait_for_pid(pid_t pid)
 {
 	int status, ret;
 
@@ -78,13 +78,20 @@ again:
 		if (errno == EINTR)
 			goto again;
 
+		ksft_print_msg("waitpid returned -1, errno=%d\n", errno);
 		return -1;
 	}
 
-	if (!WIFEXITED(status))
+	if (!WIFEXITED(status)) {
+		ksft_print_msg(
+		       "waitpid !WIFEXITED, WIFSIGNALED=%d, WTERMSIG=%d\n",
+		       WIFSIGNALED(status), WTERMSIG(status));
 		return -1;
+	}
 
-	return WEXITSTATUS(status);
+	ret = WEXITSTATUS(status);
+	ksft_print_msg("waitpid WEXITSTATUS=%d\n", ret);
+	return ret;
 }
 
 static inline int sys_pidfd_open(pid_t pid, unsigned int flags)
diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
index 22558524f71c3..3fd8e903118f5 100644
--- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <syscall.h>
 #include <sys/wait.h>
+#include <sys/mman.h>
 
 #include "pidfd.h"
 #include "../kselftest.h"
@@ -80,7 +81,10 @@ static inline int error_check(struct error *err, const char *test_name)
 	return err->code;
 }
 
+#define CHILD_STACK_SIZE 8192
+
 struct child {
+	char *stack;
 	pid_t pid;
 	int   fd;
 };
@@ -89,17 +93,22 @@ static struct child clone_newns(int (*fn)(void *), void *args,
 				struct error *err)
 {
 	static int flags = CLONE_PIDFD | CLONE_NEWPID | CLONE_NEWNS | SIGCHLD;
-	size_t stack_size = 1024;
-	char *stack[1024] = { 0 };
 	struct child ret;
 
 	if (!(flags & CLONE_NEWUSER) && geteuid() != 0)
 		flags |= CLONE_NEWUSER;
 
+	ret.stack = mmap(NULL, CHILD_STACK_SIZE, PROT_READ | PROT_WRITE,
+			 MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
+	if (ret.stack == MAP_FAILED) {
+		error_set(err, -1, "mmap of stack failed (errno %d)", errno);
+		return ret;
+	}
+
 #ifdef __ia64__
-	ret.pid = __clone2(fn, stack, stack_size, flags, args, &ret.fd);
+	ret.pid = __clone2(fn, ret.stack, CHILD_STACK_SIZE, flags, args, &ret.fd);
 #else
-	ret.pid = clone(fn, stack + stack_size, flags, args, &ret.fd);
+	ret.pid = clone(fn, ret.stack + CHILD_STACK_SIZE, flags, args, &ret.fd);
 #endif
 
 	if (ret.pid < 0) {
@@ -129,6 +138,11 @@ static inline int child_join(struct child *child, struct error *err)
 	else if (r > 0)
 		error_set(err, r, "child %d reported: %d", child->pid, r);
 
+	if (munmap(child->stack, CHILD_STACK_SIZE)) {
+		error_set(err, -1, "munmap of child stack failed (errno %d)", errno);
+		r = -1;
+	}
+
 	return r;
 }
 
-- 
GitLab


From e05dde47f52a4a8b027be0fa199d1419b2b4fc3c Mon Sep 17 00:00:00 2001
From: Axel Rasmussen <axelrasmussen@google.com>
Date: Thu, 27 Jan 2022 14:11:15 -0800
Subject: [PATCH 4093/4878] selftests: fixup build warnings in pidfd / clone3
 tests

[ Upstream commit e2aa5e650b07693477dff554053605976789fd68 ]

These are some trivial fixups, which were needed to build the tests with
clang and -Werror. The following issues are fixed:

- Remove various unused variables.
- In child_poll_leader_exit_test, clang isn't smart enough to realize
  syscall(SYS_exit, 0) won't return, so it complains we never return
  from a non-void function. Add an extra exit(0) to appease it.
- In test_pidfd_poll_leader_exit, ret may be branched on despite being
  uninitialized, if we have !use_waitpid. Initialize it to zero to get
  the right behavior in that case.

Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/clone3/clone3.c    | 2 --
 tools/testing/selftests/pidfd/pidfd_test.c | 6 +++---
 tools/testing/selftests/pidfd/pidfd_wait.c | 5 ++---
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
index 076cf4325f783..cd4582129c7d6 100644
--- a/tools/testing/selftests/clone3/clone3.c
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -126,8 +126,6 @@ static void test_clone3(uint64_t flags, size_t size, int expected,
 
 int main(int argc, char *argv[])
 {
-	pid_t pid;
-
 	uid_t uid = getuid();
 
 	ksft_print_header();
diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
index 529eb700ac26a..9a2d64901d591 100644
--- a/tools/testing/selftests/pidfd/pidfd_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_test.c
@@ -441,7 +441,6 @@ static void test_pidfd_poll_exec(int use_waitpid)
 {
 	int pid, pidfd = 0;
 	int status, ret;
-	pthread_t t1;
 	time_t prog_start = time(NULL);
 	const char *test_name = "pidfd_poll check for premature notification on child thread exec";
 
@@ -500,13 +499,14 @@ static int child_poll_leader_exit_test(void *args)
 	 */
 	*child_exit_secs = time(NULL);
 	syscall(SYS_exit, 0);
+	/* Never reached, but appeases compiler thinking we should return. */
+	exit(0);
 }
 
 static void test_pidfd_poll_leader_exit(int use_waitpid)
 {
 	int pid, pidfd = 0;
-	int status, ret;
-	time_t prog_start = time(NULL);
+	int status, ret = 0;
 	const char *test_name = "pidfd_poll check for premature notification on non-empty"
 				"group leader exit";
 
diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
index be2943f072f60..17999e082aa71 100644
--- a/tools/testing/selftests/pidfd/pidfd_wait.c
+++ b/tools/testing/selftests/pidfd/pidfd_wait.c
@@ -39,7 +39,7 @@ static int sys_waitid(int which, pid_t pid, siginfo_t *info, int options,
 
 TEST(wait_simple)
 {
-	int pidfd = -1, status = 0;
+	int pidfd = -1;
 	pid_t parent_tid = -1;
 	struct clone_args args = {
 		.parent_tid = ptr_to_u64(&parent_tid),
@@ -47,7 +47,6 @@ TEST(wait_simple)
 		.flags = CLONE_PIDFD | CLONE_PARENT_SETTID,
 		.exit_signal = SIGCHLD,
 	};
-	int ret;
 	pid_t pid;
 	siginfo_t info = {
 		.si_signo = 0,
@@ -88,7 +87,7 @@ TEST(wait_simple)
 
 TEST(wait_states)
 {
-	int pidfd = -1, status = 0;
+	int pidfd = -1;
 	pid_t parent_tid = -1;
 	struct clone_args args = {
 		.parent_tid = ptr_to_u64(&parent_tid),
-- 
GitLab


From 30455322787aee4bb95dcaabdcfcfaab69a1a8f0 Mon Sep 17 00:00:00 2001
From: Brenda Streiff <brenda.streiff@ni.com>
Date: Fri, 28 Jan 2022 16:01:28 -0600
Subject: [PATCH 4094/4878] kconfig: let 'shell' return enough output for deep
 path names

[ Upstream commit 8a4c5b2a6d8ea079fa36034e8167de87ab6f8880 ]

The 'shell' built-in only returns the first 256 bytes of the command's
output. In some cases, 'shell' is used to return a path; by bumping up
the buffer size to 4096 this lets us capture up to PATH_MAX.

The specific case where I ran into this was due to commit 1e860048c53e
("gcc-plugins: simplify GCC plugin-dev capability test"). After this
change, we now use `$(shell,$(CC) -print-file-name=plugin)` to return
a path; if the gcc path is particularly long, then the path ends up
truncated at the 256 byte mark, which makes the HAVE_GCC_PLUGINS
depends test always fail.

Signed-off-by: Brenda Streiff <brenda.streiff@ni.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/kconfig/preprocess.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 0590f86df6e40..748da578b418c 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -141,7 +141,7 @@ static char *do_lineno(int argc, char *argv[])
 static char *do_shell(int argc, char *argv[])
 {
 	FILE *p;
-	char buf[256];
+	char buf[4096];
 	char *cmd;
 	size_t nread;
 	int i;
-- 
GitLab


From b19ec7afa9297d862ed86443e0164643b97250ab Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@ionos.com>
Date: Mon, 21 Feb 2022 11:03:13 +0100
Subject: [PATCH 4095/4878] lib/iov_iter: initialize "flags" in new pipe_buffer

commit 9d2231c5d74e13b2a0546fee6737ee4446017903 upstream.

The functions copy_page_to_iter_pipe() and push_pipe() can both
allocate a new pipe_buffer, but the "flags" member initializer is
missing.

Fixes: 241699cd72a8 ("new iov_iter flavour: pipe-backed")
To: Alexander Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
To: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 lib/iov_iter.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index b364231b5fc8c..1b0a349fbcd92 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -407,6 +407,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by
 		return 0;
 
 	buf->ops = &page_cache_pipe_buf_ops;
+	buf->flags = 0;
 	get_page(page);
 	buf->page = page;
 	buf->offset = offset;
@@ -543,6 +544,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size,
 			break;
 
 		buf->ops = &default_pipe_buf_ops;
+		buf->flags = 0;
 		buf->page = page;
 		buf->offset = 0;
 		buf->len = min_t(ssize_t, left, PAGE_SIZE);
-- 
GitLab


From fecb05b1ce6b7b39884999de5cd15b47eb9b5426 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zolt=C3=A1n=20B=C3=B6sz=C3=B6rm=C3=A9nyi?=
 <zboszor@gmail.com>
Date: Fri, 4 Feb 2022 13:57:50 +0100
Subject: [PATCH 4096/4878] ata: libata-core: Disable TRIM on M88V29
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c8ea23d5fa59f28302d4e3370c75d9c308e64410 ]

This device is a CF card, or possibly an SSD in CF form factor.
It supports NCQ and high speed DMA.

While it also advertises TRIM support, I/O errors are reported
when the discard mount option fstrim is used. TRIM also fails
when disabling NCQ and not just as an NCQ command.

TRIM must be disabled for this device.

Signed-off-by: Zoltán Böszörményi <zboszor@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/libata-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 1f54f82d22d61..d2b544bdc7b5e 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3989,6 +3989,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 
 	/* devices that don't properly handle TRIM commands */
 	{ "SuperSSpeed S238*",		NULL,	ATA_HORKAGE_NOTRIM, },
+	{ "M88V29*",			NULL,	ATA_HORKAGE_NOTRIM, },
 
 	/*
 	 * As defined, the DRAT (Deterministic Read After Trim) and RZAT
-- 
GitLab


From a21f472fb5cc9b08a2a31e19a5b89338c0bd921d Mon Sep 17 00:00:00 2001
From: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Date: Tue, 1 Feb 2022 17:31:18 +1030
Subject: [PATCH 4097/4878] soc: aspeed: lpc-ctrl: Block error printing on
 probe defer cases

[ Upstream commit 301a5d3ad2432d7829f59432ca0a93a6defbb9a1 ]

Add a checking code when it gets -EPROBE_DEFER while getting a clock
resource. In this case, it doesn't need to print out an error message
because the probing will be re-visited.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20211104173709.222912-1-jae.hyun.yoo@intel.com
Link: https://lore.kernel.org/r/20220201070118.196372-1-joel@jms.id.au'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/aspeed/aspeed-lpc-ctrl.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/aspeed/aspeed-lpc-ctrl.c b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
index 040c7dc1d4792..71b555c715d2e 100644
--- a/drivers/soc/aspeed/aspeed-lpc-ctrl.c
+++ b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
@@ -251,10 +251,9 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
 	}
 
 	lpc_ctrl->clk = devm_clk_get(dev, NULL);
-	if (IS_ERR(lpc_ctrl->clk)) {
-		dev_err(dev, "couldn't get clock\n");
-		return PTR_ERR(lpc_ctrl->clk);
-	}
+	if (IS_ERR(lpc_ctrl->clk))
+		return dev_err_probe(dev, PTR_ERR(lpc_ctrl->clk),
+				     "couldn't get clock\n");
 	rc = clk_prepare_enable(lpc_ctrl->clk);
 	if (rc) {
 		dev_err(dev, "couldn't enable clock\n");
-- 
GitLab


From 1e7433fb95ccc01629a5edaa4ced0cd8c98d0ae0 Mon Sep 17 00:00:00 2001
From: Dan Aloni <dan.aloni@vastdata.com>
Date: Tue, 25 Jan 2022 22:06:46 +0200
Subject: [PATCH 4098/4878] xprtrdma: fix pointer derefs in error cases of
 rpcrdma_ep_create

[ Upstream commit a9c10b5b3b67b3750a10c8b089b2e05f5e176e33 ]

If there are failures then we must not leave the non-NULL pointers with
the error value, otherwise `rpcrdma_ep_destroy` gets confused and tries
free them, resulting in an Oops.

Signed-off-by: Dan Aloni <dan.aloni@vastdata.com>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sunrpc/xprtrdma/verbs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 25554260a5931..dcc1992b14d76 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -449,6 +449,7 @@ static int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
 					      IB_POLL_WORKQUEUE);
 	if (IS_ERR(ep->re_attr.send_cq)) {
 		rc = PTR_ERR(ep->re_attr.send_cq);
+		ep->re_attr.send_cq = NULL;
 		goto out_destroy;
 	}
 
@@ -457,6 +458,7 @@ static int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
 					      IB_POLL_WORKQUEUE);
 	if (IS_ERR(ep->re_attr.recv_cq)) {
 		rc = PTR_ERR(ep->re_attr.recv_cq);
+		ep->re_attr.recv_cq = NULL;
 		goto out_destroy;
 	}
 	ep->re_receive_count = 0;
@@ -495,6 +497,7 @@ static int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
 	ep->re_pd = ib_alloc_pd(device, 0);
 	if (IS_ERR(ep->re_pd)) {
 		rc = PTR_ERR(ep->re_pd);
+		ep->re_pd = NULL;
 		goto out_destroy;
 	}
 
-- 
GitLab


From 5a253a23d9f13d9aa505cdd48b8ab8328d752c5d Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 26 Jan 2022 15:55:24 +0100
Subject: [PATCH 4099/4878] drm/rockchip: dw_hdmi: Do not leave clock enabled
 in error case

[ Upstream commit c0cfbb122275da1b726481de5a8cffeb24e6322b ]

The driver returns an error when devm_phy_optional_get() fails leaving
the previously enabled clock turned on. Change order and enable the
clock only after the phy has been acquired.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220126145549.617165-3-s.hauer@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 23de359a1dec6..515e6f187dc77 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -529,13 +529,6 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
 		return ret;
 	}
 
-	ret = clk_prepare_enable(hdmi->vpll_clk);
-	if (ret) {
-		DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI vpll: %d\n",
-			      ret);
-		return ret;
-	}
-
 	hdmi->phy = devm_phy_optional_get(dev, "hdmi");
 	if (IS_ERR(hdmi->phy)) {
 		ret = PTR_ERR(hdmi->phy);
@@ -544,6 +537,13 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
 		return ret;
 	}
 
+	ret = clk_prepare_enable(hdmi->vpll_clk);
+	if (ret) {
+		DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI vpll: %d\n",
+			      ret);
+		return ret;
+	}
+
 	drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs);
 	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
 
-- 
GitLab


From 15616ba17d02b5139408cc86a92a9b8ed323dbb1 Mon Sep 17 00:00:00 2001
From: JaeSang Yoo <js.yoo.5b@gmail.com>
Date: Wed, 9 Feb 2022 04:54:22 +0900
Subject: [PATCH 4100/4878] tracing: Fix tp_printk option related with
 tp_printk_stop_on_boot

[ Upstream commit 3203ce39ac0b2a57a84382ec184c7d4a0bede175 ]

The kernel parameter "tp_printk_stop_on_boot" starts with "tp_printk" which is
the same as another kernel parameter "tp_printk". If "tp_printk" setup is
called before the "tp_printk_stop_on_boot", it will override the latter
and keep it from being set.

This is similar to other kernel parameter issues, such as:
  Commit 745a600cf1a6 ("um: console: Ignore console= option")
or init/do_mounts.c:45 (setup function of "ro" kernel param)

Fix it by checking for a "_" right after the "tp_printk" and if that
exists do not process the parameter.

Link: https://lkml.kernel.org/r/20220208195421.969326-1-jsyoo5b@gmail.com

Signed-off-by: JaeSang Yoo <jsyoo5b@gmail.com>
[ Fixed up change log and added space after if condition ]
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a0729213f37be..f9fad789321b0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -250,6 +250,10 @@ __setup("trace_clock=", set_trace_boot_clock);
 
 static int __init set_tracepoint_printk(char *str)
 {
+	/* Ignore the "tp_printk_stop_on_boot" param */
+	if (*str == '_')
+		return 0;
+
 	if ((strcmp(str, "=0") != 0 && strcmp(str, "=off") != 0))
 		tracepoint_printk = 1;
 	return 1;
-- 
GitLab


From 439171a2917c734a3b8e144aa3163ca8afcfcb74 Mon Sep 17 00:00:00 2001
From: Slark Xiao <slark_xiao@163.com>
Date: Wed, 9 Feb 2022 10:47:17 +0800
Subject: [PATCH 4101/4878] net: usb: qmi_wwan: Add support for Dell DW5829e
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 8ecbb179286cbc91810c16caeb3396e06305cd0c ]

Dell DW5829e same as DW5821e except the CAT level.
DW5821e supports CAT16 but DW5829e supports CAT9.
Also, DW5829e includes normal and eSIM type.
Please see below test evidence:

T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  5 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=413c ProdID=81e6 Rev=03.18
S:  Manufacturer=Dell Inc.
S:  Product=DW5829e Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option

T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  7 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=413c ProdID=81e4 Rev=03.18
S:  Manufacturer=Dell Inc.
S:  Product=DW5829e-eSIM Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Link: https://lore.kernel.org/r/20220209024717.8564-1-slark_xiao@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/qmi_wwan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 6e033ba717030..597766d14563e 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1333,6 +1333,8 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x413c, 0x81d7, 0)},	/* Dell Wireless 5821e */
 	{QMI_FIXED_INTF(0x413c, 0x81d7, 1)},	/* Dell Wireless 5821e preproduction config */
 	{QMI_FIXED_INTF(0x413c, 0x81e0, 0)},	/* Dell Wireless 5821e with eSIM support*/
+	{QMI_FIXED_INTF(0x413c, 0x81e4, 0)},	/* Dell Wireless 5829e with eSIM support*/
+	{QMI_FIXED_INTF(0x413c, 0x81e6, 0)},	/* Dell Wireless 5829e */
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
 	{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)},	/* HP lt4120 Snapdragon X5 LTE */
 	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
-- 
GitLab


From b6787e284d3dfaa830f8241679abef3fb7e609e5 Mon Sep 17 00:00:00 2001
From: Marc St-Amand <mstamand@ciena.com>
Date: Wed, 9 Feb 2022 15:13:25 +0530
Subject: [PATCH 4102/4878] net: macb: Align the dma and coherent dma masks

[ Upstream commit 37f7860602b5b2d99fc7465f6407f403f5941988 ]

Single page and coherent memory blocks can use different DMA masks
when the macb accesses physical memory directly. The kernel is clever
enough to allocate pages that fit into the requested address width.

When using the ARM SMMU, the DMA mask must be the same for single
pages and big coherent memory blocks. Otherwise the translation
tables turn into one big mess.

  [   74.959909] macb ff0e0000.ethernet eth0: DMA bus error: HRESP not OK
  [   74.959989] arm-smmu fd800000.smmu: Unhandled context fault: fsr=0x402, iova=0x3165687460, fsynr=0x20001, cbfrsynra=0x877, cb=1
  [   75.173939] macb ff0e0000.ethernet eth0: DMA bus error: HRESP not OK
  [   75.173955] arm-smmu fd800000.smmu: Unhandled context fault: fsr=0x402, iova=0x3165687460, fsynr=0x20001, cbfrsynra=0x877, cb=1

Since using the same DMA mask does not hurt direct 1:1 physical
memory mappings, this commit always aligns DMA and coherent masks.

Signed-off-by: Marc St-Amand <mstamand@ciena.com>
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/cadence/macb_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 1e8bf6b9834bb..2af464ac250ac 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4534,7 +4534,7 @@ static int macb_probe(struct platform_device *pdev)
 
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 	if (GEM_BFEXT(DAW64, gem_readl(bp, DCFG6))) {
-		dma_set_mask(&pdev->dev, DMA_BIT_MASK(44));
+		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44));
 		bp->hw_dma_cap |= HW_DMA_CAP_64B;
 	}
 #endif
-- 
GitLab


From 3680b2b8104b9c0cdbe168d0de4912ad5bff6abd Mon Sep 17 00:00:00 2001
From: Jing Leng <jleng@ambarella.com>
Date: Fri, 11 Feb 2022 17:27:36 +0800
Subject: [PATCH 4103/4878] kconfig: fix failing to generate auto.conf

[ Upstream commit 1b9e740a81f91ae338b29ed70455719804957b80 ]

When the KCONFIG_AUTOCONFIG is specified (e.g. export \
KCONFIG_AUTOCONFIG=output/config/auto.conf), the directory of
include/config/ will not be created, so kconfig can't create deps
files in it and auto.conf can't be generated.

Signed-off-by: Jing Leng <jleng@ambarella.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/kconfig/confdata.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index a39d93e3c6ae8..867b06c6d2797 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -968,14 +968,19 @@ static int conf_write_dep(const char *name)
 
 static int conf_touch_deps(void)
 {
-	const char *name;
+	const char *name, *tmp;
 	struct symbol *sym;
 	int res, i;
 
-	strcpy(depfile_path, "include/config/");
-	depfile_prefix_len = strlen(depfile_path);
-
 	name = conf_get_autoconfig_name();
+	tmp = strrchr(name, '/');
+	depfile_prefix_len = tmp ? tmp - name + 1 : 0;
+	if (depfile_prefix_len + 1 > sizeof(depfile_path))
+		return -1;
+
+	strncpy(depfile_path, name, depfile_prefix_len);
+	depfile_path[depfile_prefix_len] = 0;
+
 	conf_read_simple(name, S_DEF_AUTO);
 	sym_calc_value(modules_sym);
 
-- 
GitLab


From f6ce4e328939337abdb7659fcb505d084ecc7b8f Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Sat, 12 Feb 2022 08:31:20 -0800
Subject: [PATCH 4104/4878] scsi: lpfc: Fix pt2pt NVMe PRLI reject LOGO loop

commit 7f4c5a26f735dea4bbc0eb8eb9da99cda95a8563 upstream.

When connected point to point, the driver does not know the FC4's supported
by the other end. In Fabrics, it can query the nameserver.  Thus the driver
must send PRLIs for the FC4s it supports and enable support based on the
acc(ept) or rej(ect) of the respective FC4 PRLI.  Currently the driver
supports SCSI and NVMe PRLIs.

Unfortunately, although the behavior is per standard, many devices have
come to expect only SCSI PRLIs. In this particular example, the NVMe PRLI
is properly RJT'd but the target decided that it must LOGO after seeing the
unexpected NVMe PRLI. The LOGO causes the sequence to restart and login is
now in an infinite failure loop.

Fix the problem by having the driver, on a pt2pt link, remember NVMe PRLI
accept or reject status across logout as long as the link stays "up".  When
retrying login, if the prior NVMe PRLI was rejected, it will not be sent on
the next login.

Link: https://lore.kernel.org/r/20220212163120.15385-1-jsmart2021@gmail.com
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/lpfc/lpfc.h           |  1 +
 drivers/scsi/lpfc/lpfc_attr.c      |  3 +++
 drivers/scsi/lpfc/lpfc_els.c       | 20 +++++++++++++++++++-
 drivers/scsi/lpfc/lpfc_nportdisc.c |  5 +++--
 4 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index d1894539efc30..03bc472f302a2 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -374,6 +374,7 @@ struct lpfc_vport {
 #define FC_VPORT_LOGO_RCVD      0x200    /* LOGO received on vport */
 #define FC_RSCN_DISCOVERY       0x400	 /* Auth all devices after RSCN */
 #define FC_LOGO_RCVD_DID_CHNG   0x800    /* FDISC on phys port detect DID chng*/
+#define FC_PT2PT_NO_NVME        0x1000   /* Don't send NVME PRLI */
 #define FC_SCSI_SCAN_TMO        0x4000	 /* scsi scan timer running */
 #define FC_ABORT_DISCOVERY      0x8000	 /* we want to abort discovery */
 #define FC_NDISC_ACTIVE         0x10000	 /* NPort discovery active */
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index b73d5d9494021..f0d1ced630162 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1142,6 +1142,9 @@ lpfc_issue_lip(struct Scsi_Host *shost)
 	pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
 	pmboxq->u.mb.mbxOwner = OWN_HOST;
 
+	if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_NO_NVME))
+		vport->fc_flag &= ~FC_PT2PT_NO_NVME;
+
 	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 
 	if ((mbxstatus == MBX_SUCCESS) &&
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 3d9889b3d5c8a..387b0cd1ea18f 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1067,7 +1067,8 @@ stop_rr_fcf_flogi:
 
 		/* FLOGI failed, so there is no fabric */
 		spin_lock_irq(shost->host_lock);
-		vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
+		vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP |
+				    FC_PT2PT_NO_NVME);
 		spin_unlock_irq(shost->host_lock);
 
 		/* If private loop, then allow max outstanding els to be
@@ -3945,6 +3946,23 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		/* Added for Vendor specifc support
 		 * Just keep retrying for these Rsn / Exp codes
 		 */
+		if ((vport->fc_flag & FC_PT2PT) &&
+		    cmd == ELS_CMD_NVMEPRLI) {
+			switch (stat.un.b.lsRjtRsnCode) {
+			case LSRJT_UNABLE_TPC:
+			case LSRJT_INVALID_CMD:
+			case LSRJT_LOGICAL_ERR:
+			case LSRJT_CMD_UNSUPPORTED:
+				lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
+						 "0168 NVME PRLI LS_RJT "
+						 "reason %x port doesn't "
+						 "support NVME, disabling NVME\n",
+						 stat.un.b.lsRjtRsnCode);
+				retry = 0;
+				vport->fc_flag |= FC_PT2PT_NO_NVME;
+				goto out_retry;
+			}
+		}
 		switch (stat.un.b.lsRjtRsnCode) {
 		case LSRJT_UNABLE_TPC:
 			/* The driver has a VALID PLOGI but the rport has
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 6afcb1426e357..e33f752318c19 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -2010,8 +2010,9 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
 			 * is configured try it.
 			 */
 			ndlp->nlp_fc4_type |= NLP_FC4_FCP;
-			if ((vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
-			    (vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
+			if ((!(vport->fc_flag & FC_PT2PT_NO_NVME)) &&
+			    (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
+			    vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
 				ndlp->nlp_fc4_type |= NLP_FC4_NVME;
 				/* We need to update the localport also */
 				lpfc_nvme_update_localport(vport);
-- 
GitLab


From 595c259f75aeb0114014dc1cd6c54f9c9feee25c Mon Sep 17 00:00:00 2001
From: Eliav Farber <farbere@amazon.com>
Date: Thu, 13 Jan 2022 10:06:19 +0000
Subject: [PATCH 4105/4878] EDAC: Fix calculation of returned address and next
 offset in edac_align_ptr()

commit f8efca92ae509c25e0a4bd5d0a86decea4f0c41e upstream.

Do alignment logic properly and use the "ptr" local variable for
calculating the remainder of the alignment.

This became an issue because struct edac_mc_layer has a size that is not
zero modulo eight, and the next offset that was prepared for the private
data was unaligned, causing an alignment exception.

The patch in Fixes: which broke this actually wanted to "what we
actually care about is the alignment of the actual pointer that's about
to be returned." But it didn't check that alignment.

Use the correct variable "ptr" for that.

  [ bp: Massage commit message. ]

Fixes: 8447c4d15e35 ("edac: Do alignment logic properly in edac_align_ptr()")
Signed-off-by: Eliav Farber <farbere@amazon.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220113100622.12783-2-farbere@amazon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/edac_mc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 01ff71f7b6456..f4eb071327be0 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -210,7 +210,7 @@ void *edac_align_ptr(void **p, unsigned int size, int n_elems)
 	else
 		return (char *)ptr;
 
-	r = (unsigned long)p % align;
+	r = (unsigned long)ptr % align;
 
 	if (r == 0)
 		return (char *)ptr;
-- 
GitLab


From 797b380f0756354b39f7487c362ea203cf3e3e80 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 15 Feb 2022 15:53:05 -0800
Subject: [PATCH 4106/4878] net: sched: limit TC_ACT_REPEAT loops

commit 5740d068909676d4bdb5c9c00c37a83df7728909 upstream.

We have been living dangerously, at the mercy of malicious users,
abusing TC_ACT_REPEAT, as shown by this syzpot report [1].

Add an arbitrary limit (32) to the number of times an action can
return TC_ACT_REPEAT.

v2: switch the limit to 32 instead of 10.
    Use net_warn_ratelimited() instead of pr_err_once().

[1] (C repro available on demand)

rcu: INFO: rcu_preempt self-detected stall on CPU
rcu:    1-...!: (10500 ticks this GP) idle=021/1/0x4000000000000000 softirq=5592/5592 fqs=0
        (t=10502 jiffies g=5305 q=190)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g5305 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu:    Possible timer handling issue on cpu=0 timer-softirq=3527
rcu: rcu_preempt kthread starved for 10505 jiffies! g5305 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu:    Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:29344 pid:   14 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:4986 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6295
 schedule+0xd2/0x260 kernel/sched/core.c:6368
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
 rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1963
 rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2136
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3646 Comm: syz-executor358 Not tainted 5.17.0-rc3-syzkaller-00149-gbf8e59fd315f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:437 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3b8/0xb40 kernel/locking/qspinlock.c:508
Code: 48 89 eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c <f3> 90 41 83 ec 01 0f 84 72 04 00 00 41 0f b6 45 00 38 d8 7f 08 84
RSP: 0018:ffffc9000283f1b0 EFLAGS: 00000206
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff1100fc0071e
RDX: 0000000000000001 RSI: 0000000000000201 RDI: 0000000000000000
RBP: ffff88807e0038f0 R08: 0000000000000001 R09: ffffffff8ffbf9ff
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000004c1e
R13: ffffed100fc0071e R14: 0000000000000001 R15: ffff8880b9c3aa80
FS:  00005555562bf300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdbfef12b8 CR3: 00000000723c2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:115
 spin_lock_bh include/linux/spinlock.h:354 [inline]
 sch_tree_lock include/net/sch_generic.h:610 [inline]
 sch_tree_lock include/net/sch_generic.h:605 [inline]
 prio_tune+0x3b9/0xb50 net/sched/sch_prio.c:211
 prio_init+0x5c/0x80 net/sched/sch_prio.c:244
 qdisc_create.constprop.0+0x44a/0x10f0 net/sched/sch_api.c:1253
 tc_modify_qdisc+0x4c5/0x1980 net/sched/sch_api.c:1660
 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5594
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7ee98aae99
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdbfef12d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffdbfef1300 RCX: 00007f7ee98aae99
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d
R10: 000000000000000d R11: 0000000000000246 R12: 00007ffdbfef12f0
R13: 00000000000f4240 R14: 000000000004ca47 R15: 00007ffdbfef12e4
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.293 msecs
NMI backtrace for cpu 1
CPU: 1 PID: 3260 Comm: kworker/1:3 Not tainted 5.17.0-rc3-syzkaller-00149-gbf8e59fd315f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: mld mld_ifc_work
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
 rcu_pending kernel/rcu/tree.c:3919 [inline]
 rcu_sched_clock_irq.cold+0x5c/0x759 kernel/rcu/tree.c:2617
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0xc/0x70 kernel/kcov.c:286
Code: 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 <89> f1 65 48 8b 34 25 00 70 02 00 e8 14 f9 ff ff 84 c0 74 4b 48 8b
RSP: 0018:ffffc90002c5eea8 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffff88801c625800 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: ffff8880137d3100 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff874fcd88 R11: 0000000000000000 R12: ffff88801d692dc0
R13: ffff8880137d3104 R14: 0000000000000000 R15: ffff88801d692de8
 tcf_police_act+0x358/0x11d0 net/sched/act_police.c:256
 tcf_action_exec net/sched/act_api.c:1049 [inline]
 tcf_action_exec+0x1a6/0x530 net/sched/act_api.c:1026
 tcf_exts_exec include/net/pkt_cls.h:326 [inline]
 route4_classify+0xef0/0x1400 net/sched/cls_route.c:179
 __tcf_classify net/sched/cls_api.c:1549 [inline]
 tcf_classify+0x3e8/0x9d0 net/sched/cls_api.c:1615
 prio_classify net/sched/sch_prio.c:42 [inline]
 prio_enqueue+0x3a7/0x790 net/sched/sch_prio.c:75
 dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3668
 __dev_xmit_skb net/core/dev.c:3756 [inline]
 __dev_queue_xmit+0x1f61/0x3660 net/core/dev.c:4081
 neigh_hh_output include/net/neighbour.h:533 [inline]
 neigh_output include/net/neighbour.h:547 [inline]
 ip_finish_output2+0x14dc/0x2170 net/ipv4/ip_output.c:228
 __ip_finish_output net/ipv4/ip_output.c:306 [inline]
 __ip_finish_output+0x396/0x650 net/ipv4/ip_output.c:288
 ip_finish_output+0x32/0x200 net/ipv4/ip_output.c:316
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip_output+0x196/0x310 net/ipv4/ip_output.c:430
 dst_output include/net/dst.h:451 [inline]
 ip_local_out+0xaf/0x1a0 net/ipv4/ip_output.c:126
 iptunnel_xmit+0x628/0xa50 net/ipv4/ip_tunnel_core.c:82
 geneve_xmit_skb drivers/net/geneve.c:966 [inline]
 geneve_xmit+0x10c8/0x3530 drivers/net/geneve.c:1077
 __netdev_start_xmit include/linux/netdevice.h:4683 [inline]
 netdev_start_xmit include/linux/netdevice.h:4697 [inline]
 xmit_one net/core/dev.c:3473 [inline]
 dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3489
 __dev_queue_xmit+0x2985/0x3660 net/core/dev.c:4116
 neigh_hh_output include/net/neighbour.h:533 [inline]
 neigh_output include/net/neighbour.h:547 [inline]
 ip6_finish_output2+0xf7a/0x14f0 net/ipv6/ip6_output.c:126
 __ip6_finish_output net/ipv6/ip6_output.c:191 [inline]
 __ip6_finish_output+0x61e/0xe90 net/ipv6/ip6_output.c:170
 ip6_finish_output+0x32/0x200 net/ipv6/ip6_output.c:201
 NF_HOOK_COND include/linux/netfilter.h:296 [inline]
 ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:224
 dst_output include/net/dst.h:451 [inline]
 NF_HOOK include/linux/netfilter.h:307 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 mld_sendpack+0x9a3/0xe40 net/ipv6/mcast.c:1826
 mld_send_cr net/ipv6/mcast.c:2127 [inline]
 mld_ifc_work+0x71c/0xdc0 net/ipv6/mcast.c:2659
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess):
   0:   48 89 eb                mov    %rbp,%rbx
   3:   c6 45 01 01             movb   $0x1,0x1(%rbp)
   7:   41 bc 00 80 00 00       mov    $0x8000,%r12d
   d:   48 c1 e9 03             shr    $0x3,%rcx
  11:   83 e3 07                and    $0x7,%ebx
  14:   41 be 01 00 00 00       mov    $0x1,%r14d
  1a:   48 b8 00 00 00 00 00    movabs $0xdffffc0000000000,%rax
  21:   fc ff df
  24:   4c 8d 2c 01             lea    (%rcx,%rax,1),%r13
  28:   eb 0c                   jmp    0x36
* 2a:   f3 90                   pause <-- trapping instruction
  2c:   41 83 ec 01             sub    $0x1,%r12d
  30:   0f 84 72 04 00 00       je     0x4a8
  36:   41 0f b6 45 00          movzbl 0x0(%r13),%eax
  3b:   38 d8                   cmp    %bl,%al
  3d:   7f 08                   jg     0x47
  3f:   84                      .byte 0x84

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220215235305.3272331-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/act_api.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index f613299ca7f0a..7b29aa1a3ce9a 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -680,15 +680,24 @@ int tcf_action_exec(struct sk_buff *skb, struct tc_action **actions,
 restart_act_graph:
 	for (i = 0; i < nr_actions; i++) {
 		const struct tc_action *a = actions[i];
+		int repeat_ttl;
 
 		if (jmp_prgcnt > 0) {
 			jmp_prgcnt -= 1;
 			continue;
 		}
+
+		repeat_ttl = 32;
 repeat:
 		ret = a->ops->act(skb, a, res);
-		if (ret == TC_ACT_REPEAT)
-			goto repeat;	/* we need a ttl - JHS */
+
+		if (unlikely(ret == TC_ACT_REPEAT)) {
+			if (--repeat_ttl != 0)
+				goto repeat;
+			/* suspicious opcode, stop pipeline */
+			net_warn_ratelimited("TC_ACT_REPEAT abuse ?\n");
+			return TC_ACT_OK;
+		}
 
 		if (TC_ACT_EXT_CMP(ret, TC_ACT_JUMP)) {
 			jmp_prgcnt = ret & TCA_ACT_MAX_PRIO_MASK;
-- 
GitLab


From 4f907b6eb701a5f7c56bc401197eb3b51db0cd8d Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Thu, 6 Jan 2022 11:09:39 +0800
Subject: [PATCH 4107/4878] dmaengine: sh: rcar-dmac: Check for error num after
 setting mask

commit 2d21543efe332cd8c8f212fb7d365bc8b0690bfa upstream.

Because of the possible failure of the dma_supported(), the
dma_set_mask_and_coherent() may return error num.
Therefore, it should be better to check it and return the error if
fails.

Fixes: dc312349e875 ("dmaengine: rcar-dmac: Widen DMA mask to 40 bits")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220106030939.2644320-1-jiasheng@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/sh/rcar-dmac.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 991a7b5da29f0..b12df692c57f9 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1845,7 +1845,9 @@ static int rcar_dmac_probe(struct platform_device *pdev)
 	dmac->dev = &pdev->dev;
 	platform_set_drvdata(pdev, dmac);
 	dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
-	dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
+	ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
+	if (ret)
+		return ret;
 
 	ret = rcar_dmac_parse_of(&pdev->dev, dmac);
 	if (ret < 0)
-- 
GitLab


From 2c35c95d3640979d0f0118b640ddd4b326cf4d81 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Sat, 8 Jan 2022 08:53:36 +0000
Subject: [PATCH 4108/4878] dmaengine: stm32-dmamux: Fix PM disable depth
 imbalance in stm32_dmamux_probe

commit e831c7aba950f3ae94002b10321279654525e5ec upstream.

The pm_runtime_enable will increase power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().

Fixes: 4f3ceca254e0 ("dmaengine: stm32-dmamux: Add PM Runtime support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20220108085336.11992-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/stm32-dmamux.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/stm32-dmamux.c b/drivers/dma/stm32-dmamux.c
index bddd3b23f33fc..f04bcffd3c24a 100644
--- a/drivers/dma/stm32-dmamux.c
+++ b/drivers/dma/stm32-dmamux.c
@@ -292,10 +292,12 @@ static int stm32_dmamux_probe(struct platform_device *pdev)
 	ret = of_dma_router_register(node, stm32_dmamux_route_allocate,
 				     &stm32_dmamux->dmarouter);
 	if (ret)
-		goto err_clk;
+		goto pm_disable;
 
 	return 0;
 
+pm_disable:
+	pm_runtime_disable(&pdev->dev);
 err_clk:
 	clk_disable_unprepare(stm32_dmamux->clk);
 
-- 
GitLab


From 3b6d25d1b6a298b1f7dbbfef98dd2086ec60960f Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 11 Jan 2022 09:12:39 +0800
Subject: [PATCH 4109/4878] dmaengine: sh: rcar-dmac: Check for error num after
 dma_set_max_seg_size

commit da2ad87fba0891576aadda9161b8505fde81a84d upstream.

As the possible failure of the dma_set_max_seg_size(), it should be
better to check the return value of the dma_set_max_seg_size().

Fixes: 97d49c59e219 ("dmaengine: rcar-dmac: set scatter/gather max segment size")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220111011239.452837-1-jiasheng@iscas.ac.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/dma/sh/rcar-dmac.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index b12df692c57f9..7c268d1bd2050 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1844,7 +1844,10 @@ static int rcar_dmac_probe(struct platform_device *pdev)
 
 	dmac->dev = &pdev->dev;
 	platform_set_drvdata(pdev, dmac);
-	dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
+	ret = dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
+	if (ret)
+		return ret;
+
 	ret = dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
 	if (ret)
 		return ret;
-- 
GitLab


From b5b2a92117137159f0cf71f57987962c35d68f82 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Date: Thu, 3 Feb 2022 18:47:00 +0200
Subject: [PATCH 4110/4878] i2c: qcom-cci: don't delete an unregistered adapter

commit a0d48505a1d68e27220369e2dd1e3573a2f362d2 upstream.

If i2c_add_adapter() fails to add an I2C adapter found on QCOM CCI
controller, on error path i2c_del_adapter() is still called.

Fortunately there is a sanity check in the I2C core, so the only
visible implication is a printed debug level message:

    i2c-core: attempting to delete unregistered adapter [Qualcomm-CCI]

Nevertheless it would be reasonable to correct the probe error path.

Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver")
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-qcom-cci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
index 1c259b5188de8..e5b4c5b724b21 100644
--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -655,7 +655,7 @@ static int cci_probe(struct platform_device *pdev)
 	return 0;
 
 error_i2c:
-	for (; i >= 0; i--) {
+	for (--i ; i >= 0; i--) {
 		if (cci->master[i].cci)
 			i2c_del_adapter(&cci->master[i].adap);
 	}
-- 
GitLab


From e3fdbc40b7501f3822327d83e039e71d107117ff Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Date: Thu, 3 Feb 2022 18:47:03 +0200
Subject: [PATCH 4111/4878] i2c: qcom-cci: don't put a device tree node before
 i2c_add_adapter()

commit 02a4a69667a2ad32f3b52ca906f19628fbdd8a01 upstream.

There is a minor chance for a race, if a pointer to an i2c-bus subnode
is stored and then reused after releasing its reference, and it would
be sufficient to get one more reference under a loop over children
subnodes.

Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver")
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-qcom-cci.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
index e5b4c5b724b21..09e599069a81d 100644
--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -558,7 +558,7 @@ static int cci_probe(struct platform_device *pdev)
 		cci->master[idx].adap.quirks = &cci->data->quirks;
 		cci->master[idx].adap.algo = &cci_algo;
 		cci->master[idx].adap.dev.parent = dev;
-		cci->master[idx].adap.dev.of_node = child;
+		cci->master[idx].adap.dev.of_node = of_node_get(child);
 		cci->master[idx].master = idx;
 		cci->master[idx].cci = cci;
 
@@ -643,8 +643,10 @@ static int cci_probe(struct platform_device *pdev)
 			continue;
 
 		ret = i2c_add_adapter(&cci->master[i].adap);
-		if (ret < 0)
+		if (ret < 0) {
+			of_node_put(cci->master[i].adap.dev.of_node);
 			goto error_i2c;
+		}
 	}
 
 	pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC);
@@ -656,8 +658,10 @@ static int cci_probe(struct platform_device *pdev)
 
 error_i2c:
 	for (--i ; i >= 0; i--) {
-		if (cci->master[i].cci)
+		if (cci->master[i].cci) {
 			i2c_del_adapter(&cci->master[i].adap);
+			of_node_put(cci->master[i].adap.dev.of_node);
+		}
 	}
 error:
 	disable_irq(cci->irq);
@@ -673,8 +677,10 @@ static int cci_remove(struct platform_device *pdev)
 	int i;
 
 	for (i = 0; i < cci->data->num_masters; i++) {
-		if (cci->master[i].cci)
+		if (cci->master[i].cci) {
 			i2c_del_adapter(&cci->master[i].adap);
+			of_node_put(cci->master[i].adap.dev.of_node);
+		}
 		cci_halt(cci, i);
 	}
 
-- 
GitLab


From 9fee985f9afa2fd5ee2c024d1a35b86e56bd1b63 Mon Sep 17 00:00:00 2001
From: Waiman Long <longman@redhat.com>
Date: Tue, 8 Feb 2022 11:39:12 -0500
Subject: [PATCH 4112/4878] copy_process(): Move fd_install() out of
 sighand->siglock critical section

commit ddc204b517e60ae64db34f9832dc41dafa77c751 upstream.

I was made aware of the following lockdep splat:

[ 2516.308763] =====================================================
[ 2516.309085] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
[ 2516.309433] 5.14.0-51.el9.aarch64+debug #1 Not tainted
[ 2516.309703] -----------------------------------------------------
[ 2516.310149] stress-ng/153663 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[ 2516.310512] ffff0000e422b198 (&newf->file_lock){+.+.}-{2:2}, at: fd_install+0x368/0x4f0
[ 2516.310944]
               and this task is already holding:
[ 2516.311248] ffff0000c08140d8 (&sighand->siglock){-.-.}-{2:2}, at: copy_process+0x1e2c/0x3e80
[ 2516.311804] which would create a new lock dependency:
[ 2516.312066]  (&sighand->siglock){-.-.}-{2:2} -> (&newf->file_lock){+.+.}-{2:2}
[ 2516.312446]
               but this new dependency connects a HARDIRQ-irq-safe lock:
[ 2516.312983]  (&sighand->siglock){-.-.}-{2:2}
   :
[ 2516.330700]  Possible interrupt unsafe locking scenario:

[ 2516.331075]        CPU0                    CPU1
[ 2516.331328]        ----                    ----
[ 2516.331580]   lock(&newf->file_lock);
[ 2516.331790]                                local_irq_disable();
[ 2516.332231]                                lock(&sighand->siglock);
[ 2516.332579]                                lock(&newf->file_lock);
[ 2516.332922]   <Interrupt>
[ 2516.333069]     lock(&sighand->siglock);
[ 2516.333291]
                *** DEADLOCK ***
[ 2516.389845]
               stack backtrace:
[ 2516.390101] CPU: 3 PID: 153663 Comm: stress-ng Kdump: loaded Not tainted 5.14.0-51.el9.aarch64+debug #1
[ 2516.390756] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[ 2516.391155] Call trace:
[ 2516.391302]  dump_backtrace+0x0/0x3e0
[ 2516.391518]  show_stack+0x24/0x30
[ 2516.391717]  dump_stack_lvl+0x9c/0xd8
[ 2516.391938]  dump_stack+0x1c/0x38
[ 2516.392247]  print_bad_irq_dependency+0x620/0x710
[ 2516.392525]  check_irq_usage+0x4fc/0x86c
[ 2516.392756]  check_prev_add+0x180/0x1d90
[ 2516.392988]  validate_chain+0x8e0/0xee0
[ 2516.393215]  __lock_acquire+0x97c/0x1e40
[ 2516.393449]  lock_acquire.part.0+0x240/0x570
[ 2516.393814]  lock_acquire+0x90/0xb4
[ 2516.394021]  _raw_spin_lock+0xe8/0x154
[ 2516.394244]  fd_install+0x368/0x4f0
[ 2516.394451]  copy_process+0x1f5c/0x3e80
[ 2516.394678]  kernel_clone+0x134/0x660
[ 2516.394895]  __do_sys_clone3+0x130/0x1f4
[ 2516.395128]  __arm64_sys_clone3+0x5c/0x7c
[ 2516.395478]  invoke_syscall.constprop.0+0x78/0x1f0
[ 2516.395762]  el0_svc_common.constprop.0+0x22c/0x2c4
[ 2516.396050]  do_el0_svc+0xb0/0x10c
[ 2516.396252]  el0_svc+0x24/0x34
[ 2516.396436]  el0t_64_sync_handler+0xa4/0x12c
[ 2516.396688]  el0t_64_sync+0x198/0x19c
[ 2517.491197] NET: Registered PF_ATMPVC protocol family
[ 2517.491524] NET: Registered PF_ATMSVC protocol family
[ 2591.991877] sched: RT throttling activated

One way to solve this problem is to move the fd_install() call out of
the sighand->siglock critical section.

Before commit 6fd2fe494b17 ("copy_process(): don't use ksys_close()
on cleanups"), the pidfd installation was done without holding both
the task_list lock and the sighand->siglock. Obviously, holding these
two locks are not really needed to protect the fd_install() call.
So move the fd_install() call down to after the releases of both locks.

Link: https://lore.kernel.org/r/20220208163912.1084752-1-longman@redhat.com
Fixes: 6fd2fe494b17 ("copy_process(): don't use ksys_close() on cleanups")
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/fork.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index e465903abed9e..a78c0b02edd55 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2258,10 +2258,6 @@ static __latent_entropy struct task_struct *copy_process(
 		goto bad_fork_cancel_cgroup;
 	}
 
-	/* past the last point of failure */
-	if (pidfile)
-		fd_install(pidfd, pidfile);
-
 	init_task_pid_links(p);
 	if (likely(p->pid)) {
 		ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace);
@@ -2310,6 +2306,9 @@ static __latent_entropy struct task_struct *copy_process(
 	syscall_tracepoint_update(p);
 	write_unlock_irq(&tasklist_lock);
 
+	if (pidfile)
+		fd_install(pidfd, pidfile);
+
 	proc_fork_connector(p);
 	sched_post_fork(p, args);
 	cgroup_post_fork(p, args);
-- 
GitLab


From f333c1916fd6b55900029bf8f918cc00009e2111 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 15 Feb 2022 08:27:35 +0100
Subject: [PATCH 4113/4878] i2c: brcmstb: fix support for DSL and CM variants
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 834cea3a252ed4847db076a769ad9efe06afe2d5 upstream.

DSL and CM (Cable Modem) support 8 B max transfer size and have a custom
DT binding for that reason. This driver was checking for a wrong
"compatible" however which resulted in an incorrect setup.

Fixes: e2e5a2c61837 ("i2c: brcmstb: Adding support for CM and DSL SoCs")
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-brcmstb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index ba766d24219ef..44e2466f3c674 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -674,7 +674,7 @@ static int brcmstb_i2c_probe(struct platform_device *pdev)
 
 	/* set the data in/out register size for compatible SoCs */
 	if (of_device_is_compatible(dev->device->of_node,
-				    "brcmstb,brcmper-i2c"))
+				    "brcm,brcmper-i2c"))
 		dev->data_regsz = sizeof(u8);
 	else
 		dev->data_regsz = sizeof(u32);
-- 
GitLab


From 6062d1267ff3e5570165c974bb0dc2120c9d363c Mon Sep 17 00:00:00 2001
From: Cheng Jui Wang <cheng-jui.wang@mediatek.com>
Date: Thu, 10 Feb 2022 18:50:11 +0800
Subject: [PATCH 4114/4878] lockdep: Correct lock_classes index mapping

commit 28df029d53a2fd80c1b8674d47895648ad26dcfb upstream.

A kernel exception was hit when trying to dump /proc/lockdep_chains after
lockdep report "BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!":

Unable to handle kernel paging request at virtual address 00054005450e05c3
...
00054005450e05c3] address between user and kernel address ranges
...
pc : [0xffffffece769b3a8] string+0x50/0x10c
lr : [0xffffffece769ac88] vsnprintf+0x468/0x69c
...
 Call trace:
  string+0x50/0x10c
  vsnprintf+0x468/0x69c
  seq_printf+0x8c/0xd8
  print_name+0x64/0xf4
  lc_show+0xb8/0x128
  seq_read_iter+0x3cc/0x5fc
  proc_reg_read_iter+0xdc/0x1d4

The cause of the problem is the function lock_chain_get_class() will
shift lock_classes index by 1, but the index don't need to be shifted
anymore since commit 01bb6f0af992 ("locking/lockdep: Change the range
of class_idx in held_lock struct") already change the index to start
from 0.

The lock_classes[-1] located at chain_hlocks array. When printing
lock_classes[-1] after the chain_hlocks entries are modified, the
exception happened.

The output of lockdep_chains are incorrect due to this problem too.

Fixes: f611e8cf98ec ("lockdep: Take read/write status in consideration when generate chainkey")
Signed-off-by: Cheng Jui Wang <cheng-jui.wang@mediatek.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/20220210105011.21712-1-cheng-jui.wang@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/locking/lockdep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 1f6a2f1226fa9..af4b35450556f 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3387,7 +3387,7 @@ struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i)
 	u16 chain_hlock = chain_hlocks[chain->base + i];
 	unsigned int class_idx = chain_hlock_class_idx(chain_hlock);
 
-	return lock_classes + class_idx - 1;
+	return lock_classes + class_idx;
 }
 
 /*
@@ -3455,7 +3455,7 @@ static void print_chain_keys_chain(struct lock_chain *chain)
 		hlock_id = chain_hlocks[chain->base + i];
 		chain_key = print_chain_key_iteration(hlock_id, chain_key);
 
-		print_lock_name(lock_classes + chain_hlock_class_idx(hlock_id) - 1);
+		print_lock_name(lock_classes + chain_hlock_class_idx(hlock_id));
 		printk("\n");
 	}
 }
-- 
GitLab


From 47667effb7d2f54dab3be33749c5a05152c07db0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 23 Feb 2022 12:01:08 +0100
Subject: [PATCH 4115/4878] Linux 5.10.102

Link: https://lore.kernel.org/r/20220221084921.147454846@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Slade Watkins <slade@sladewatkins.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 32d9ed44e1c47..f71684d435e5a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 101
+SUBLEVEL = 102
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 6176a723e4a7d48dfa3ea12368be03a2729df1d2 Mon Sep 17 00:00:00 2001
From: Matthias Maennich <maennich@google.com>
Date: Wed, 23 Feb 2022 13:49:15 +0000
Subject: [PATCH 4116/4878] ANDROID: align constness of extcon_get_state
 parameter

The implementation of extcon_get_state() defines `id` as const unsigned
int, while the declarations do not qualify. This leads to inconsistent
type information recorded when comparing Dwarf produced by Clang full
LTO and Clang thin LTO.

This is still valid code, but for now address this by aligning the
declarations with the definitions until it can be addressed in the
compiler.

Bug: 221022839
Bug: 220181989
Signed-off-by: Matthias Maennich <maennich@google.com>
Change-Id: Iad555f551e998bec62a27cce63b3c033a46baf7f
---
 drivers/extcon/extcon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index e7a9561a826d3..872c8aee8b2c7 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -486,7 +486,7 @@ EXPORT_SYMBOL_GPL(extcon_sync);
  *
  * Returns 0 if success or error number if fail.
  */
-int extcon_get_state(struct extcon_dev *edev, const unsigned int id)
+int extcon_get_state(struct extcon_dev *edev, unsigned int id)
 {
 	int index, state;
 	unsigned long flags;
-- 
GitLab


From d7525840a23a7d2b6ca1351f1b2edc62b837646d Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 8 Nov 2021 08:48:14 +0200
Subject: [PATCH 4117/4878] UPSTREAM: scsi: ufs: core: Fix task management
 completion timeout race

__ufshcd_issue_tm_cmd() clears req->end_io_data after timing out, which
races with the completion function ufshcd_tmc_handler() which expects
req->end_io_data to have a value.

Note __ufshcd_issue_tm_cmd() and ufshcd_tmc_handler() are already
synchronized using hba->tmf_rqs and hba->outstanding_tasks under the
host_lock spinlock.

It is also not necessary (nor typical) to clear req->end_io_data because
the block layer does it before allocating out requests e.g. via
blk_get_request().

So fix by not clearing it.

Link: https://lore.kernel.org/r/20211108064815.569494-2-adrian.hunter@intel.com
Fixes: f5ef336fd2e4 ("scsi: ufs: core: Fix task management completion")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 220519910
(cherry picked from commit 886fe2915cce6658b0fc19e64b82879325de61ea)
Change-Id: Iff2f1996591c7915e11f48662be983a603ae525c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0ff57a9e5ab00..699d2c897ba1b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6698,11 +6698,6 @@ static int __ufshcd_issue_tm_cmd(struct ufs_hba *hba,
 	err = wait_for_completion_io_timeout(&wait,
 			msecs_to_jiffies(TM_CMD_TIMEOUT));
 	if (!err) {
-		/*
-		 * Make sure that ufshcd_compl_tm() does not trigger a
-		 * use-after-free.
-		 */
-		req->end_io_data = NULL;
 		ufshcd_add_tm_upiu_trace(hba, task_tag, UFS_TM_ERR);
 		dev_err(hba->dev, "%s: task management cmd 0x%.2x timed-out\n",
 				__func__, tm_function);
-- 
GitLab


From 2b5b0c26e9234f1d328d9fe3d2da998d996db1ec Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 8 Nov 2021 08:48:15 +0200
Subject: [PATCH 4118/4878] UPSTREAM: scsi: ufs: core: Fix another task
 management completion race

hba->outstanding_tasks, which is read under host_lock spinlock, tells the
interrupt handler what task management tags are in use by the driver.  The
doorbell register bits indicate which tags are in use by the hardware.  A
doorbell bit that is 0 is because the bit has yet to be set by the driver,
or because the task is complete. It is only possible to disambiguate the 2
cases, if reading/writing the doorbell register is synchronized with
reading/writing hba->outstanding_tasks.

For that reason, reading REG_UTP_TASK_REQ_DOOR_BELL must be done under
spinlock.

Link: https://lore.kernel.org/r/20211108064815.569494-3-adrian.hunter@intel.com
Fixes: f5ef336fd2e4 ("scsi: ufs: core: Fix task management completion")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 220519910
(cherry picked from commit 5cb37a26355d79ab290220677b1b57d28e99a895)
Change-Id: I0e40da162540d3debc36562d736d18eff7fd972d
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 699d2c897ba1b..d892faaef7bf2 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6533,9 +6533,8 @@ static irqreturn_t ufshcd_tmc_handler(struct ufs_hba *hba)
 	irqreturn_t ret = IRQ_NONE;
 	int tag;
 
-	pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
-
 	spin_lock_irqsave(hba->host->host_lock, flags);
+	pending = ufshcd_readl(hba, REG_UTP_TASK_REQ_DOOR_BELL);
 	issued = hba->outstanding_tasks & ~pending;
 	for_each_set_bit(tag, &issued, hba->nutmrs) {
 		struct request *req = hba->tmf_rqs[tag];
-- 
GitLab


From a6709aafdd51799dcc4bfb2a3b5295e695d671ee Mon Sep 17 00:00:00 2001
From: Matthias Maennich <maennich@google.com>
Date: Wed, 23 Feb 2022 10:58:47 +0000
Subject: [PATCH 4119/4878] ANDROID: add initial KMI representation and enable
 KMI enforcement

Add android/abi_gki_aarch64.xml as initial ABI representation of the KMI
and start enforcing KMI. While this is hard enforcement in the code
base, we still allow controlled changes to the ABI until KMI freeze.

Bug: 220181989
Signed-off-by: Matthias Maennich <maennich@google.com>
Change-Id: Icfdc0a05899667db3a45dca2977edce0cde9b600
---
 android/abi_gki_aarch64.xml | 129143 +++++++++++++++++++++++++++++++++
 build.config.gki.aarch64    |      2 +
 2 files changed, 129145 insertions(+)
 create mode 100644 android/abi_gki_aarch64.xml

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
new file mode 100644
index 0000000000000..3fb6d47352e1b
--- /dev/null
+++ b/android/abi_gki_aarch64.xml
@@ -0,0 +1,129143 @@
+<abi-corpus-group version='2.1' architecture='elf-arm-aarch64'>
+  <abi-corpus version='2.1' path='vmlinux' architecture='elf-arm-aarch64'>
+    <elf-function-symbols>
+      <elf-symbol name='PDE_DATA' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x830fd868'/>
+      <elf-symbol name='__ClearPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x274b4312'/>
+      <elf-symbol name='__SetPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf251a50'/>
+      <elf-symbol name='___ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d24c881'/>
+      <elf-symbol name='__alloc_disk_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa46d7f6'/>
+      <elf-symbol name='__alloc_pages_nodemask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818e45f3'/>
+      <elf-symbol name='__alloc_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x949f7342'/>
+      <elf-symbol name='__alloc_percpu_gfp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf793668'/>
+      <elf-symbol name='__alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42ee9964'/>
+      <elf-symbol name='__arch_clear_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55686530'/>
+      <elf-symbol name='__arch_copy_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf507de1'/>
+      <elf-symbol name='__arch_copy_in_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9957204'/>
+      <elf-symbol name='__arch_copy_to_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2941b2'/>
+      <elf-symbol name='__arm_smccc_smc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf93aae46'/>
+      <elf-symbol name='__bitmap_andnot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadfdfcef'/>
+      <elf-symbol name='__bitmap_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x922f45a6'/>
+      <elf-symbol name='__bitmap_equal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3e6402e'/>
+      <elf-symbol name='__bitmap_or' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa084749a'/>
+      <elf-symbol name='__bitmap_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x615911d7'/>
+      <elf-symbol name='__bitmap_weight' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c4d61f'/>
+      <elf-symbol name='__blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d3c9c0c'/>
+      <elf-symbol name='__blk_rq_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cda2b50'/>
+      <elf-symbol name='__cfg80211_alloc_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55bb655c'/>
+      <elf-symbol name='__cfg80211_alloc_reply_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8854dc9d'/>
+      <elf-symbol name='__cfg80211_send_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d582d68'/>
+      <elf-symbol name='__cfi_slowpath' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cd90edd'/>
+      <elf-symbol name='__check_object_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88db9f48'/>
+      <elf-symbol name='__class_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7131f2a'/>
+      <elf-symbol name='__class_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe3d4908'/>
+      <elf-symbol name='__clk_determine_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x340e2aa3'/>
+      <elf-symbol name='__clk_get_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b894cf7'/>
+      <elf-symbol name='__clk_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc569d8ce'/>
+      <elf-symbol name='__clk_hw_register_divider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a84dddd'/>
+      <elf-symbol name='__clk_hw_register_mux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56b21c87'/>
+      <elf-symbol name='__clk_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6a4a872'/>
+      <elf-symbol name='__clk_mux_determine_rate_closest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7aec971'/>
+      <elf-symbol name='__clocksource_register_scale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91676354'/>
+      <elf-symbol name='__const_udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeae3dfd6'/>
+      <elf-symbol name='__cpufreq_driver_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f1a6e56'/>
+      <elf-symbol name='__cpuhp_remove_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63547718'/>
+      <elf-symbol name='__cpuhp_setup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57ad17e9'/>
+      <elf-symbol name='__cpuhp_setup_state_cpuslocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46f24c3c'/>
+      <elf-symbol name='__cpuhp_state_add_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe21d8f58'/>
+      <elf-symbol name='__cpuhp_state_remove_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6753e8cf'/>
+      <elf-symbol name='__crypto_memneq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a44f8cb'/>
+      <elf-symbol name='__dev_get_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc80fbd46'/>
+      <elf-symbol name='__dev_kfree_skb_any' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5d009a1'/>
+      <elf-symbol name='__devm_drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda6d198'/>
+      <elf-symbol name='__devm_iio_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba7f933'/>
+      <elf-symbol name='__devm_of_phy_provider_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0c7e007'/>
+      <elf-symbol name='__devm_regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383e374c'/>
+      <elf-symbol name='__devm_regmap_init_i2c' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44202e87'/>
+      <elf-symbol name='__devm_regmap_init_mmio_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf62ae1e9'/>
+      <elf-symbol name='__devm_regmap_init_spi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a7f6306'/>
+      <elf-symbol name='__devm_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x704f5977'/>
+      <elf-symbol name='__devm_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcc8ce77'/>
+      <elf-symbol name='__devm_spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfe5c804'/>
+      <elf-symbol name='__dma_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27da1af0'/>
+      <elf-symbol name='__do_once_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced1ff13'/>
+      <elf-symbol name='__do_once_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18e60984'/>
+      <elf-symbol name='__drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd3b3ea3'/>
+      <elf-symbol name='__drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff0c5'/>
+      <elf-symbol name='__drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bd4d093'/>
+      <elf-symbol name='__drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9adfdb5'/>
+      <elf-symbol name='__drm_atomic_helper_crtc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6c5fa5c'/>
+      <elf-symbol name='__drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8306aea3'/>
+      <elf-symbol name='__drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b8cb5a8'/>
+      <elf-symbol name='__drm_atomic_helper_private_obj_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8619ed8c'/>
+      <elf-symbol name='__drm_atomic_state_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cad492'/>
+      <elf-symbol name='__drm_crtc_commit_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae277372'/>
+      <elf-symbol name='__drm_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec12af74'/>
+      <elf-symbol name='__drm_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb11ac7a7'/>
+      <elf-symbol name='__drm_printfn_coredump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea00fe81'/>
+      <elf-symbol name='__drm_printfn_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe317082a'/>
+      <elf-symbol name='__drm_printfn_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb953b1'/>
+      <elf-symbol name='__drm_puts_coredump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b0e5e9c'/>
+      <elf-symbol name='__drm_puts_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x513072fe'/>
+      <elf-symbol name='__dynamic_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x211f9974'/>
+      <elf-symbol name='__dynamic_pr_debug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x837b7b09'/>
+      <elf-symbol name='__ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a9bb4f4'/>
+      <elf-symbol name='__fdget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1d8cfaf'/>
+      <elf-symbol name='__free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacd2f3fc'/>
+      <elf-symbol name='__get_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a5cb5ee'/>
+      <elf-symbol name='__get_task_comm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e8de867'/>
+      <elf-symbol name='__hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d5d9f29'/>
+      <elf-symbol name='__hci_cmd_sync_ev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dfead41'/>
+      <elf-symbol name='__hvc_resize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd452da24'/>
+      <elf-symbol name='__hwspin_lock_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe33e7fcf'/>
+      <elf-symbol name='__hwspin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccef5d0'/>
+      <elf-symbol name='__i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x488f26bf'/>
+      <elf-symbol name='__i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17263c79'/>
+      <elf-symbol name='__ieee80211_schedule_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6326f5'/>
+      <elf-symbol name='__init_rwsem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5a94b83'/>
+      <elf-symbol name='__init_swait_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x608741b5'/>
+      <elf-symbol name='__init_waitqueue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a5ea54'/>
+      <elf-symbol name='__ioread32_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3801776b'/>
+      <elf-symbol name='__ioremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b4b2933'/>
+      <elf-symbol name='__iowrite32_copy' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x2dba276a'/>
+      <elf-symbol name='__ipv6_addr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd542439'/>
+      <elf-symbol name='__irq_alloc_descs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5db075d0'/>
+      <elf-symbol name='__irq_domain_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76f6e37a'/>
+      <elf-symbol name='__kfifo_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x139f2189'/>
+      <elf-symbol name='__kfifo_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb760f52'/>
+      <elf-symbol name='__kfifo_from_user_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeebc7c4'/>
+      <elf-symbol name='__kfifo_in' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf23fcb99'/>
+      <elf-symbol name='__kfifo_in_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3955fcf6'/>
+      <elf-symbol name='__kfifo_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd462b55'/>
+      <elf-symbol name='__kfifo_out' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13d0adf7'/>
+      <elf-symbol name='__kfifo_out_peek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x281823c5'/>
+      <elf-symbol name='__kfifo_skip_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce4e47b6'/>
+      <elf-symbol name='__kfifo_to_user_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2484adc3'/>
+      <elf-symbol name='__kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb233a45'/>
+      <elf-symbol name='__kthread_init_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b11dfa0'/>
+      <elf-symbol name='__list_add_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68f31cbd'/>
+      <elf-symbol name='__list_del_entry_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1537255'/>
+      <elf-symbol name='__local_bh_enable_ip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c3fce39'/>
+      <elf-symbol name='__lock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa32d6865'/>
+      <elf-symbol name='__log_post_read_mmio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6980ea4b'/>
+      <elf-symbol name='__log_read_mmio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf1211a8'/>
+      <elf-symbol name='__log_write_mmio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31dfd5cd'/>
+      <elf-symbol name='__memcpy_fromio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d112304'/>
+      <elf-symbol name='__memcpy_toio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf77555cd'/>
+      <elf-symbol name='__memset_io' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18b48e28'/>
+      <elf-symbol name='__mmc_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97e0a581'/>
+      <elf-symbol name='__mmc_send_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb91eaab2'/>
+      <elf-symbol name='__mmdrop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ea49da'/>
+      <elf-symbol name='__module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0d15e4c'/>
+      <elf-symbol name='__msecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f02188f'/>
+      <elf-symbol name='__mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x574add77'/>
+      <elf-symbol name='__napi_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfbdf36'/>
+      <elf-symbol name='__napi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x814cec45'/>
+      <elf-symbol name='__ndelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf8c695a'/>
+      <elf-symbol name='__netdev_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3149ce5'/>
+      <elf-symbol name='__netif_napi_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39d9662d'/>
+      <elf-symbol name='__netif_set_xps_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7bf993c'/>
+      <elf-symbol name='__netlink_kernel_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2022665'/>
+      <elf-symbol name='__nla_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x420964e3'/>
+      <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4398e6f9'/>
+      <elf-symbol name='__of_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x220b3ca3'/>
+      <elf-symbol name='__page_frag_cache_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82702c60'/>
+      <elf-symbol name='__page_pinner_migration_failed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf75ae849'/>
+      <elf-symbol name='__pci_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a11108d'/>
+      <elf-symbol name='__platform_driver_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c511cf2'/>
+      <elf-symbol name='__platform_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8390dd5'/>
+      <elf-symbol name='__pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd3dd7dd'/>
+      <elf-symbol name='__pm_runtime_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d9929c0'/>
+      <elf-symbol name='__pm_runtime_idle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3b4f137'/>
+      <elf-symbol name='__pm_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa30f67b5'/>
+      <elf-symbol name='__pm_runtime_set_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4131f3b'/>
+      <elf-symbol name='__pm_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47ef9e5f'/>
+      <elf-symbol name='__pm_runtime_use_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c735047'/>
+      <elf-symbol name='__pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811ba580'/>
+      <elf-symbol name='__printk_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6128b5fc'/>
+      <elf-symbol name='__pskb_pull_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x676c479c'/>
+      <elf-symbol name='__put_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5ce765e'/>
+      <elf-symbol name='__put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ea8ef0'/>
+      <elf-symbol name='__put_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171996f6'/>
+      <elf-symbol name='__rcu_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d522714'/>
+      <elf-symbol name='__rcu_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2469810f'/>
+      <elf-symbol name='__refrigerator' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4482cdb'/>
+      <elf-symbol name='__register_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f79f981'/>
+      <elf-symbol name='__register_rpmsg_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacee8545'/>
+      <elf-symbol name='__regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32182d15'/>
+      <elf-symbol name='__release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1848221d'/>
+      <elf-symbol name='__request_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa24f23d8'/>
+      <elf-symbol name='__request_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d9ee2a0'/>
+      <elf-symbol name='__request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca39ba0'/>
+      <elf-symbol name='__rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0d156e9'/>
+      <elf-symbol name='__root_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92977172'/>
+      <elf-symbol name='__rt_mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9377942'/>
+      <elf-symbol name='__rtc_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5384acc6'/>
+      <elf-symbol name='__scsi_iterate_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba247812'/>
+      <elf-symbol name='__scsi_print_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4870c30d'/>
+      <elf-symbol name='__sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6b929a8'/>
+      <elf-symbol name='__sdhci_set_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb10f87ce'/>
+      <elf-symbol name='__seq_open_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x264ece54'/>
+      <elf-symbol name='__serio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb966a74c'/>
+      <elf-symbol name='__serio_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57539006'/>
+      <elf-symbol name='__sg_page_iter_dma_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc445ceb'/>
+      <elf-symbol name='__sg_page_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9ca58f'/>
+      <elf-symbol name='__sg_page_iter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd4c999'/>
+      <elf-symbol name='__skb_ext_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42e61877'/>
+      <elf-symbol name='__skb_flow_dissect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x142677b1'/>
+      <elf-symbol name='__skb_get_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x200de2da'/>
+      <elf-symbol name='__skb_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac0d08f7'/>
+      <elf-symbol name='__spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf46fef67'/>
+      <elf-symbol name='__spi_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x748fa1fb'/>
+      <elf-symbol name='__splice_from_pipe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x608c4e42'/>
+      <elf-symbol name='__spmi_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x929d956f'/>
+      <elf-symbol name='__srcu_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70272ece'/>
+      <elf-symbol name='__stack_chk_fail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98a9d10c'/>
+      <elf-symbol name='__sw_hweight16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57674fd7'/>
+      <elf-symbol name='__sw_hweight32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74c134b9'/>
+      <elf-symbol name='__sw_hweight64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f46ced8'/>
+      <elf-symbol name='__sw_hweight8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc3fcbc9'/>
+      <elf-symbol name='__sysfs_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169938c1'/>
+      <elf-symbol name='__task_pid_nr_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x532cd153'/>
+      <elf-symbol name='__tasklet_hi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e3bad0a'/>
+      <elf-symbol name='__tasklet_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d2ab8ac'/>
+      <elf-symbol name='__trace_bprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa20d01ba'/>
+      <elf-symbol name='__traceiter_android_rvh_arm64_serror_panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe90dfa30'/>
+      <elf-symbol name='__traceiter_android_rvh_bad_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dc2e9e1'/>
+      <elf-symbol name='__traceiter_android_rvh_cgroup_force_kthread_migration' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x147db077'/>
+      <elf-symbol name='__traceiter_android_rvh_check_preempt_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79ac8f47'/>
+      <elf-symbol name='__traceiter_android_rvh_cpu_cgroup_online' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe22f3592'/>
+      <elf-symbol name='__traceiter_android_rvh_cpu_overutilized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f085466'/>
+      <elf-symbol name='__traceiter_android_rvh_dequeue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87a58d4a'/>
+      <elf-symbol name='__traceiter_android_rvh_dequeue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd1dff4f'/>
+      <elf-symbol name='__traceiter_android_rvh_die_kernel_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91f68209'/>
+      <elf-symbol name='__traceiter_android_rvh_do_mem_abort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x669812d6'/>
+      <elf-symbol name='__traceiter_android_rvh_do_sea' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1b06d02'/>
+      <elf-symbol name='__traceiter_android_rvh_do_sp_pc_abort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47243dfd'/>
+      <elf-symbol name='__traceiter_android_rvh_do_undefinstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xace8e825'/>
+      <elf-symbol name='__traceiter_android_rvh_enqueue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe120adf'/>
+      <elf-symbol name='__traceiter_android_rvh_enqueue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e25123a'/>
+      <elf-symbol name='__traceiter_android_rvh_find_energy_efficient_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc97c3034'/>
+      <elf-symbol name='__traceiter_android_rvh_irqs_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x707d1f10'/>
+      <elf-symbol name='__traceiter_android_rvh_irqs_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a345722'/>
+      <elf-symbol name='__traceiter_android_rvh_post_init_entity_util_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcfea98e'/>
+      <elf-symbol name='__traceiter_android_rvh_preempt_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1585c762'/>
+      <elf-symbol name='__traceiter_android_rvh_preempt_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3235e37a'/>
+      <elf-symbol name='__traceiter_android_rvh_sched_fork' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a88ecfe'/>
+      <elf-symbol name='__traceiter_android_rvh_select_task_rq_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82cd0e36'/>
+      <elf-symbol name='__traceiter_android_rvh_select_task_rq_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ec54a6'/>
+      <elf-symbol name='__traceiter_android_rvh_set_iowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c3f2145'/>
+      <elf-symbol name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x760027e1'/>
+      <elf-symbol name='__traceiter_android_rvh_typec_tcpci_get_vbus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37614c90'/>
+      <elf-symbol name='__traceiter_android_rvh_uclamp_eff_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x836419dc'/>
+      <elf-symbol name='__traceiter_android_rvh_uclamp_rq_util_with' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88355ef0'/>
+      <elf-symbol name='__traceiter_android_rvh_ufs_complete_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x347db806'/>
+      <elf-symbol name='__traceiter_android_rvh_ufs_reprogram_all_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac38cf23'/>
+      <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2968ee74'/>
+      <elf-symbol name='__traceiter_android_vh_aes_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1574b'/>
+      <elf-symbol name='__traceiter_android_vh_aes_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6160ff0c'/>
+      <elf-symbol name='__traceiter_android_vh_aes_expandkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc004b58'/>
+      <elf-symbol name='__traceiter_android_vh_arch_set_freq_scale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb98e0e01'/>
+      <elf-symbol name='__traceiter_android_vh_cma_alloc_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28d7e2e'/>
+      <elf-symbol name='__traceiter_android_vh_cma_alloc_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44fcd06e'/>
+      <elf-symbol name='__traceiter_android_vh_cpu_idle_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdc34d2e'/>
+      <elf-symbol name='__traceiter_android_vh_cpu_idle_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd966796c'/>
+      <elf-symbol name='__traceiter_android_vh_dup_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eb9ac10'/>
+      <elf-symbol name='__traceiter_android_vh_enable_thermal_genl_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc39a1e16'/>
+      <elf-symbol name='__traceiter_android_vh_ep_create_wakeup_source' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e8ed582'/>
+      <elf-symbol name='__traceiter_android_vh_ipi_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x250fcbba'/>
+      <elf-symbol name='__traceiter_android_vh_meminfo_proc_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6b0362e'/>
+      <elf-symbol name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a666675'/>
+      <elf-symbol name='__traceiter_android_vh_mmc_blk_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae47a396'/>
+      <elf-symbol name='__traceiter_android_vh_of_i2c_get_board_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcc0513d'/>
+      <elf-symbol name='__traceiter_android_vh_pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e4bbcf'/>
+      <elf-symbol name='__traceiter_android_vh_rmqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9aacbdd9'/>
+      <elf-symbol name='__traceiter_android_vh_setscheduler_uclamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2670a8ee'/>
+      <elf-symbol name='__traceiter_android_vh_sha256' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88fe3e25'/>
+      <elf-symbol name='__traceiter_android_vh_snd_compr_use_pause_in_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6ab1ad2'/>
+      <elf-symbol name='__traceiter_android_vh_sound_usb_support_cpu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76b8b179'/>
+      <elf-symbol name='__traceiter_android_vh_sysrq_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40207816'/>
+      <elf-symbol name='__traceiter_android_vh_thermal_pm_notify_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d0ef19f'/>
+      <elf-symbol name='__traceiter_android_vh_timerfd_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c68d59c'/>
+      <elf-symbol name='__traceiter_android_vh_typec_store_partner_src_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3707443'/>
+      <elf-symbol name='__traceiter_android_vh_typec_tcpci_override_toggling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd3fc09b'/>
+      <elf-symbol name='__traceiter_android_vh_typec_tcpm_get_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa264e589'/>
+      <elf-symbol name='__traceiter_android_vh_typec_tcpm_log' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8a5e0bf'/>
+      <elf-symbol name='__traceiter_android_vh_typec_tcpm_modify_src_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b3cdc9'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_check_int_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfea98e28'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_compl_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x704d014'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_fill_prdt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ebec6eb'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_prepare_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56b84cc'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_send_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe26f0aea'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_send_tm_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ad14fe0'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_send_uic_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa724649'/>
+      <elf-symbol name='__traceiter_android_vh_ufs_update_sysfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68f34378'/>
+      <elf-symbol name='__traceiter_android_vh_usb_dev_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10cf4398'/>
+      <elf-symbol name='__traceiter_android_vh_usb_dev_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f736b79'/>
+      <elf-symbol name='__traceiter_clock_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa45eb358'/>
+      <elf-symbol name='__traceiter_cpu_frequency' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xead3e41b'/>
+      <elf-symbol name='__traceiter_device_pm_callback_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeee62d16'/>
+      <elf-symbol name='__traceiter_device_pm_callback_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3556ef52'/>
+      <elf-symbol name='__traceiter_dma_fence_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59e1482'/>
+      <elf-symbol name='__traceiter_dwc3_readl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26871a2b'/>
+      <elf-symbol name='__traceiter_dwc3_writel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcff87172'/>
+      <elf-symbol name='__traceiter_gpu_mem_total' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x448af6f4'/>
+      <elf-symbol name='__traceiter_mm_vmscan_direct_reclaim_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x803bf202'/>
+      <elf-symbol name='__traceiter_mm_vmscan_direct_reclaim_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2520b8a'/>
+      <elf-symbol name='__traceiter_pelt_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f4cf534'/>
+      <elf-symbol name='__traceiter_pelt_dl_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36a981b4'/>
+      <elf-symbol name='__traceiter_pelt_irq_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d83e737'/>
+      <elf-symbol name='__traceiter_pelt_rt_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf253dc81'/>
+      <elf-symbol name='__traceiter_pelt_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2223ef63'/>
+      <elf-symbol name='__traceiter_rwmmio_post_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7257c10'/>
+      <elf-symbol name='__traceiter_rwmmio_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42dea6f7'/>
+      <elf-symbol name='__traceiter_rwmmio_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x729023fd'/>
+      <elf-symbol name='__traceiter_sched_cpu_capacity_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x451b98b9'/>
+      <elf-symbol name='__traceiter_sched_overutilized_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f8c3cab'/>
+      <elf-symbol name='__traceiter_sched_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14e64933'/>
+      <elf-symbol name='__traceiter_sched_util_est_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9990573a'/>
+      <elf-symbol name='__traceiter_sched_util_est_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63423c10'/>
+      <elf-symbol name='__traceiter_suspend_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5883efb'/>
+      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed1d6f84'/>
+      <elf-symbol name='__tty_insert_flip_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ad626c6'/>
+      <elf-symbol name='__udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e7d6bd0'/>
+      <elf-symbol name='__uio_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x817cf9ee'/>
+      <elf-symbol name='__unregister_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bc3fbc0'/>
+      <elf-symbol name='__update_load_avg_blocked_se' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa49fae98'/>
+      <elf-symbol name='__usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde809bee'/>
+      <elf-symbol name='__usecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1969a8e'/>
+      <elf-symbol name='__video_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeed2b56d'/>
+      <elf-symbol name='__wake_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eeb2322'/>
+      <elf-symbol name='__wake_up_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2773c485'/>
+      <elf-symbol name='__wake_up_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8273d0b'/>
+      <elf-symbol name='__warn_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56470118'/>
+      <elf-symbol name='__xa_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf40e7a73'/>
+      <elf-symbol name='__xfrm_state_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98649520'/>
+      <elf-symbol name='_copy_from_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa016aa25'/>
+      <elf-symbol name='_copy_from_iter_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdbf0404'/>
+      <elf-symbol name='_copy_to_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1df176e9'/>
+      <elf-symbol name='_dev_crit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3132a9e'/>
+      <elf-symbol name='_dev_emerg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f7f06d6'/>
+      <elf-symbol name='_dev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fb4b5ed'/>
+      <elf-symbol name='_dev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74feff2b'/>
+      <elf-symbol name='_dev_notice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x363a4b43'/>
+      <elf-symbol name='_dev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9453a732'/>
+      <elf-symbol name='_raw_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe8c61f0'/>
+      <elf-symbol name='_raw_read_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8dee722d'/>
+      <elf-symbol name='_raw_read_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48112d76'/>
+      <elf-symbol name='_raw_read_lock_irqsave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1342cdb'/>
+      <elf-symbol name='_raw_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd4d55b6'/>
+      <elf-symbol name='_raw_read_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaeb082ad'/>
+      <elf-symbol name='_raw_read_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa58af0a6'/>
+      <elf-symbol name='_raw_read_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf2ebb87'/>
+      <elf-symbol name='_raw_spin_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba8fbd64'/>
+      <elf-symbol name='_raw_spin_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3690fc'/>
+      <elf-symbol name='_raw_spin_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8427cc7b'/>
+      <elf-symbol name='_raw_spin_lock_irqsave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34db050b'/>
+      <elf-symbol name='_raw_spin_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfef216eb'/>
+      <elf-symbol name='_raw_spin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5b54b34'/>
+      <elf-symbol name='_raw_spin_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe46021ca'/>
+      <elf-symbol name='_raw_spin_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b750f53'/>
+      <elf-symbol name='_raw_spin_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd35cce70'/>
+      <elf-symbol name='_raw_write_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe68efe41'/>
+      <elf-symbol name='_raw_write_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51a511eb'/>
+      <elf-symbol name='_raw_write_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3aca0190'/>
+      <elf-symbol name='_raw_write_lock_irqsave' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5021bd81'/>
+      <elf-symbol name='_raw_write_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40235c98'/>
+      <elf-symbol name='_raw_write_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7ab1ecc'/>
+      <elf-symbol name='_raw_write_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f76baf4'/>
+      <elf-symbol name='_raw_write_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb078aee'/>
+      <elf-symbol name='_snd_ctl_add_follower' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc49fa2b9'/>
+      <elf-symbol name='add_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eb808d0'/>
+      <elf-symbol name='add_device_randomness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fb6de5d'/>
+      <elf-symbol name='add_random_ready_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x872f3b5c'/>
+      <elf-symbol name='add_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65744673'/>
+      <elf-symbol name='add_timer_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa83a512'/>
+      <elf-symbol name='add_uevent_var' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c6febfc'/>
+      <elf-symbol name='add_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4afb2238'/>
+      <elf-symbol name='adjust_managed_page_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2fa9e5f'/>
+      <elf-symbol name='aead_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfffa69'/>
+      <elf-symbol name='aes_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77e9eb37'/>
+      <elf-symbol name='aes_expandkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x558b281d'/>
+      <elf-symbol name='ahash_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x559eb8fd'/>
+      <elf-symbol name='alarm_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x536e1fa7'/>
+      <elf-symbol name='alarm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fbe3658'/>
+      <elf-symbol name='alarm_start_relative' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb6361a'/>
+      <elf-symbol name='alarm_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3295ffe'/>
+      <elf-symbol name='alarmtimer_get_rtcdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfbb1c96'/>
+      <elf-symbol name='alloc_anon_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd987c1'/>
+      <elf-symbol name='alloc_can_err_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2391f2a3'/>
+      <elf-symbol name='alloc_can_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37b1cb93'/>
+      <elf-symbol name='alloc_candev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d310af2'/>
+      <elf-symbol name='alloc_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3ec2f2b'/>
+      <elf-symbol name='alloc_etherdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f29123e'/>
+      <elf-symbol name='alloc_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d6234b'/>
+      <elf-symbol name='alloc_netdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9e75e4f'/>
+      <elf-symbol name='alloc_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fc72f0e'/>
+      <elf-symbol name='alloc_skb_with_frags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a5b931'/>
+      <elf-symbol name='alloc_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf9208c0'/>
+      <elf-symbol name='amba_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab8e7ee9'/>
+      <elf-symbol name='amba_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6d92348'/>
+      <elf-symbol name='amba_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf98505ee'/>
+      <elf-symbol name='amba_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaffc04e6'/>
+      <elf-symbol name='android_debug_symbol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c42be3b'/>
+      <elf-symbol name='android_rvh_probe_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fbbd0bb'/>
+      <elf-symbol name='anon_inode_getfd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ceb2021'/>
+      <elf-symbol name='anon_inode_getfile' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bfc865f'/>
+      <elf-symbol name='argv_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0b13336'/>
+      <elf-symbol name='argv_split' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7380dffa'/>
+      <elf-symbol name='async_schedule_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5f370e0'/>
+      <elf-symbol name='async_schedule_node_domain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd21b61bd'/>
+      <elf-symbol name='async_synchronize_full_domain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ca4bf88'/>
+      <elf-symbol name='atomic_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3752c27'/>
+      <elf-symbol name='atomic_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b9997fb'/>
+      <elf-symbol name='atomic_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7181db30'/>
+      <elf-symbol name='autoremove_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad73041f'/>
+      <elf-symbol name='available_idle_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2088e082'/>
+      <elf-symbol name='backlight_device_set_brightness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe023e65a'/>
+      <elf-symbol name='badblocks_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72a4830e'/>
+      <elf-symbol name='badblocks_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85dc420a'/>
+      <elf-symbol name='badblocks_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdc0406b'/>
+      <elf-symbol name='badblocks_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2215b6c'/>
+      <elf-symbol name='badblocks_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7836c1e5'/>
+      <elf-symbol name='badblocks_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb658d6fc'/>
+      <elf-symbol name='bcmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x263c3152'/>
+      <elf-symbol name='bd_set_nr_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1214b348'/>
+      <elf-symbol name='bdget_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d24fad3'/>
+      <elf-symbol name='bdput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa56ff2ce'/>
+      <elf-symbol name='bgpio_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf8869cd'/>
+      <elf-symbol name='bin2hex' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd45cc6ca'/>
+      <elf-symbol name='bio_add_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54845d5b'/>
+      <elf-symbol name='bio_alloc_bioset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x591299e2'/>
+      <elf-symbol name='bio_associate_blkg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cbacfe5'/>
+      <elf-symbol name='bio_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58c23856'/>
+      <elf-symbol name='bio_clone_blkg_association' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee9ece25'/>
+      <elf-symbol name='bio_crypt_set_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78435629'/>
+      <elf-symbol name='bio_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfc2b1b2'/>
+      <elf-symbol name='bio_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11964b10'/>
+      <elf-symbol name='bio_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5ae3d0'/>
+      <elf-symbol name='bit_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44bae227'/>
+      <elf-symbol name='bitmap_find_next_zero_area_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64127b67'/>
+      <elf-symbol name='bitmap_from_arr32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8d07858'/>
+      <elf-symbol name='bitmap_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb97220ff'/>
+      <elf-symbol name='bitmap_parselist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b015d25'/>
+      <elf-symbol name='bitmap_print_to_pagebuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf474c21c'/>
+      <elf-symbol name='bitmap_to_arr32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ec54e78'/>
+      <elf-symbol name='blk_abort_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x953d30ae'/>
+      <elf-symbol name='blk_alloc_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe00c29b0'/>
+      <elf-symbol name='blk_check_plugged' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd27b25dd'/>
+      <elf-symbol name='blk_cleanup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x416d0715'/>
+      <elf-symbol name='blk_crypto_init_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50f8429f'/>
+      <elf-symbol name='blk_execute_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7de97f9'/>
+      <elf-symbol name='blk_execute_rq_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4100d4b'/>
+      <elf-symbol name='blk_freeze_queue_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3fd2e'/>
+      <elf-symbol name='blk_get_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d165e5b'/>
+      <elf-symbol name='blk_get_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0d61369'/>
+      <elf-symbol name='blk_ksm_init_passthrough' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cfebca4'/>
+      <elf-symbol name='blk_mq_alloc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d3bf6c2'/>
+      <elf-symbol name='blk_mq_alloc_request_hctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc06b4c'/>
+      <elf-symbol name='blk_mq_alloc_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85f7561b'/>
+      <elf-symbol name='blk_mq_complete_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79534047'/>
+      <elf-symbol name='blk_mq_complete_request_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d21fd72'/>
+      <elf-symbol name='blk_mq_delay_kick_requeue_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb816187'/>
+      <elf-symbol name='blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x108e9720'/>
+      <elf-symbol name='blk_mq_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd0111'/>
+      <elf-symbol name='blk_mq_free_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc972e262'/>
+      <elf-symbol name='blk_mq_freeze_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e2da714'/>
+      <elf-symbol name='blk_mq_freeze_queue_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39757e50'/>
+      <elf-symbol name='blk_mq_freeze_queue_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa020bda1'/>
+      <elf-symbol name='blk_mq_init_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a2ea0ab'/>
+      <elf-symbol name='blk_mq_init_queue_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8004c53d'/>
+      <elf-symbol name='blk_mq_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d4d7b79'/>
+      <elf-symbol name='blk_mq_pci_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc840797'/>
+      <elf-symbol name='blk_mq_quiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f837643'/>
+      <elf-symbol name='blk_mq_requeue_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb32e0fa8'/>
+      <elf-symbol name='blk_mq_run_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5267ae45'/>
+      <elf-symbol name='blk_mq_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53290736'/>
+      <elf-symbol name='blk_mq_start_stopped_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6868429e'/>
+      <elf-symbol name='blk_mq_stop_hw_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17f42d98'/>
+      <elf-symbol name='blk_mq_stop_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda6dd4fb'/>
+      <elf-symbol name='blk_mq_tag_to_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaeec66d'/>
+      <elf-symbol name='blk_mq_tagset_busy_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9c2a95b'/>
+      <elf-symbol name='blk_mq_tagset_wait_completed_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a881102'/>
+      <elf-symbol name='blk_mq_unfreeze_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc66f5cd'/>
+      <elf-symbol name='blk_mq_unique_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x105e2054'/>
+      <elf-symbol name='blk_mq_unquiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90fe5761'/>
+      <elf-symbol name='blk_mq_update_nr_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9a5012c'/>
+      <elf-symbol name='blk_mq_virtio_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6345867'/>
+      <elf-symbol name='blk_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae23816'/>
+      <elf-symbol name='blk_put_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f6aab10'/>
+      <elf-symbol name='blk_put_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f39576'/>
+      <elf-symbol name='blk_queue_alignment_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x878ccd92'/>
+      <elf-symbol name='blk_queue_bounce_limit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbff22866'/>
+      <elf-symbol name='blk_queue_can_use_dma_map_merging' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbdf5888'/>
+      <elf-symbol name='blk_queue_chunk_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd59802e0'/>
+      <elf-symbol name='blk_queue_dma_alignment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d402fb4'/>
+      <elf-symbol name='blk_queue_flag_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde3dae6f'/>
+      <elf-symbol name='blk_queue_flag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62f28f0'/>
+      <elf-symbol name='blk_queue_flag_test_and_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b6b70f6'/>
+      <elf-symbol name='blk_queue_io_min' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53d34ef1'/>
+      <elf-symbol name='blk_queue_io_opt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4d6c68b'/>
+      <elf-symbol name='blk_queue_logical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a0fa933'/>
+      <elf-symbol name='blk_queue_max_discard_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d058be5'/>
+      <elf-symbol name='blk_queue_max_discard_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a28aa8c'/>
+      <elf-symbol name='blk_queue_max_hw_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53976fae'/>
+      <elf-symbol name='blk_queue_max_segment_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x892763dc'/>
+      <elf-symbol name='blk_queue_max_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb887ea6c'/>
+      <elf-symbol name='blk_queue_max_write_zeroes_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x798f5420'/>
+      <elf-symbol name='blk_queue_physical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50036483'/>
+      <elf-symbol name='blk_queue_rq_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x774a3563'/>
+      <elf-symbol name='blk_queue_virt_boundary' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd51a9206'/>
+      <elf-symbol name='blk_queue_write_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a10bc37'/>
+      <elf-symbol name='blk_rq_map_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e6ac5e4'/>
+      <elf-symbol name='blk_rq_map_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e19856c'/>
+      <elf-symbol name='blk_rq_map_user_iov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49249f9d'/>
+      <elf-symbol name='blk_rq_unmap_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd334fdf'/>
+      <elf-symbol name='blk_set_queue_dying' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe44a7ae5'/>
+      <elf-symbol name='blk_status_to_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84502a47'/>
+      <elf-symbol name='blk_sync_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3dda80a'/>
+      <elf-symbol name='blk_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7210a334'/>
+      <elf-symbol name='blk_verify_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27639220'/>
+      <elf-symbol name='blkdev_get_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43d2cb86'/>
+      <elf-symbol name='blkdev_get_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d23872f'/>
+      <elf-symbol name='blkdev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86968560'/>
+      <elf-symbol name='blocking_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8317ad7c'/>
+      <elf-symbol name='blocking_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb0c86a5'/>
+      <elf-symbol name='blocking_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x963aa2a9'/>
+      <elf-symbol name='bpf_dispatcher_xdp_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f8f674a'/>
+      <elf-symbol name='bpf_prog_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383ddb61'/>
+      <elf-symbol name='bpf_prog_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb56d201f'/>
+      <elf-symbol name='bpf_prog_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc519e1de'/>
+      <elf-symbol name='bpf_trace_run1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9bab223'/>
+      <elf-symbol name='bpf_trace_run10' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6acc5ca'/>
+      <elf-symbol name='bpf_trace_run11' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8e4c044'/>
+      <elf-symbol name='bpf_trace_run12' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2787d850'/>
+      <elf-symbol name='bpf_trace_run2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71672bcd'/>
+      <elf-symbol name='bpf_trace_run3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdddbea1b'/>
+      <elf-symbol name='bpf_trace_run4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6180c3f0'/>
+      <elf-symbol name='bpf_trace_run5' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf89d44f'/>
+      <elf-symbol name='bpf_trace_run6' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94b100d4'/>
+      <elf-symbol name='bpf_trace_run7' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335c6c26'/>
+      <elf-symbol name='bpf_trace_run8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e1019a9'/>
+      <elf-symbol name='bpf_trace_run9' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f61af74'/>
+      <elf-symbol name='bpf_warn_invalid_xdp_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2bcd37'/>
+      <elf-symbol name='bt_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b8c32f1'/>
+      <elf-symbol name='bt_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x718b8b7'/>
+      <elf-symbol name='bt_to_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aad008b'/>
+      <elf-symbol name='bt_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x214e4265'/>
+      <elf-symbol name='btbcm_set_bdaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aee73b5'/>
+      <elf-symbol name='btbcm_setup_apple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb44677e'/>
+      <elf-symbol name='btbcm_setup_patchram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4743b39'/>
+      <elf-symbol name='build_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x117d5f4'/>
+      <elf-symbol name='bus_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbe4f6da'/>
+      <elf-symbol name='bus_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b6ccf40'/>
+      <elf-symbol name='bus_for_each_drv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cb311'/>
+      <elf-symbol name='bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x722fce05'/>
+      <elf-symbol name='bus_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fa3c4d1'/>
+      <elf-symbol name='bus_set_iommu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a8fd12'/>
+      <elf-symbol name='bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a41daf'/>
+      <elf-symbol name='bus_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c7225'/>
+      <elf-symbol name='cache_line_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x605d5bfa'/>
+      <elf-symbol name='call_netdevice_notifiers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ecf2037'/>
+      <elf-symbol name='can_change_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a72706e'/>
+      <elf-symbol name='can_free_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae9043b4'/>
+      <elf-symbol name='can_get_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc690b2d2'/>
+      <elf-symbol name='can_put_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8123a045'/>
+      <elf-symbol name='cancel_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda571594'/>
+      <elf-symbol name='cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8beca97'/>
+      <elf-symbol name='cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd969d6f4'/>
+      <elf-symbol name='capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6cbbc89'/>
+      <elf-symbol name='cdev_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9176be3'/>
+      <elf-symbol name='cdev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9e06b71'/>
+      <elf-symbol name='cdev_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429e6a87'/>
+      <elf-symbol name='cdev_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d970e2b'/>
+      <elf-symbol name='cdev_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64dd7b3a'/>
+      <elf-symbol name='cdev_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf14b4529'/>
+      <elf-symbol name='cec_allocate_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x117275f6'/>
+      <elf-symbol name='cec_delete_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a57c5f1'/>
+      <elf-symbol name='cec_received_msg_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb77cd564'/>
+      <elf-symbol name='cec_register_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x360b7f3b'/>
+      <elf-symbol name='cec_s_log_addrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5eaa449d'/>
+      <elf-symbol name='cec_s_phys_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76a5b12'/>
+      <elf-symbol name='cec_s_phys_addr_from_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6936018d'/>
+      <elf-symbol name='cec_transmit_attempt_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x536420dd'/>
+      <elf-symbol name='cec_transmit_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x821f891b'/>
+      <elf-symbol name='cec_unregister_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57241e0d'/>
+      <elf-symbol name='cfg80211_calculate_bitrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15a37cf3'/>
+      <elf-symbol name='cfg80211_ch_switch_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3edafbc6'/>
+      <elf-symbol name='cfg80211_chandef_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef265f27'/>
+      <elf-symbol name='cfg80211_connect_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148cfa49'/>
+      <elf-symbol name='cfg80211_del_sta_sinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72a297d5'/>
+      <elf-symbol name='cfg80211_disconnected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951456b3'/>
+      <elf-symbol name='cfg80211_external_auth_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbefcaba8'/>
+      <elf-symbol name='cfg80211_find_elem_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d6cba30'/>
+      <elf-symbol name='cfg80211_find_vendor_elem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b82a71'/>
+      <elf-symbol name='cfg80211_get_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x328d16d4'/>
+      <elf-symbol name='cfg80211_gtk_rekey_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ffdd313'/>
+      <elf-symbol name='cfg80211_ibss_joined' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd11723'/>
+      <elf-symbol name='cfg80211_inform_bss_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4487d922'/>
+      <elf-symbol name='cfg80211_inform_bss_frame_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x207e4744'/>
+      <elf-symbol name='cfg80211_mgmt_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa15b2af9'/>
+      <elf-symbol name='cfg80211_michael_mic_failure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e803092'/>
+      <elf-symbol name='cfg80211_new_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15f8d46'/>
+      <elf-symbol name='cfg80211_pmksa_candidate_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e6a258'/>
+      <elf-symbol name='cfg80211_port_authorized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaaae4122'/>
+      <elf-symbol name='cfg80211_put_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91b275cc'/>
+      <elf-symbol name='cfg80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94755b9f'/>
+      <elf-symbol name='cfg80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadcd6f9'/>
+      <elf-symbol name='cfg80211_roamed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41a2c31e'/>
+      <elf-symbol name='cfg80211_rx_mgmt_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9debcbe2'/>
+      <elf-symbol name='cfg80211_rx_unprot_mlme_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5671a455'/>
+      <elf-symbol name='cfg80211_scan_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d866aad'/>
+      <elf-symbol name='cfg80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84ac3ed4'/>
+      <elf-symbol name='cfg80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7179509a'/>
+      <elf-symbol name='cfg80211_sched_scan_stopped_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a26cca8'/>
+      <elf-symbol name='cfg80211_stop_iface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6afd1311'/>
+      <elf-symbol name='cfg80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52f189ed'/>
+      <elf-symbol name='cfg80211_unlink_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfb85975'/>
+      <elf-symbol name='cfg80211_unregister_wdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3d10170'/>
+      <elf-symbol name='cfg80211_update_owe_info_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe206c2f8'/>
+      <elf-symbol name='cfg80211_vendor_cmd_reply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55e4f2f2'/>
+      <elf-symbol name='class_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61823fd'/>
+      <elf-symbol name='class_interface_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e979ea3'/>
+      <elf-symbol name='class_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3bd2b'/>
+      <elf-symbol name='cleanup_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c909ed'/>
+      <elf-symbol name='clear_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d9ee9f0'/>
+      <elf-symbol name='clk_bulk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479f7d4b'/>
+      <elf-symbol name='clk_bulk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec68ba70'/>
+      <elf-symbol name='clk_bulk_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeafe07b8'/>
+      <elf-symbol name='clk_bulk_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c08029'/>
+      <elf-symbol name='clk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6e6d99d'/>
+      <elf-symbol name='clk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x815588a6'/>
+      <elf-symbol name='clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97895721'/>
+      <elf-symbol name='clk_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63150e06'/>
+      <elf-symbol name='clk_get_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x556e4390'/>
+      <elf-symbol name='clk_hw_get_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ff9312d'/>
+      <elf-symbol name='clk_hw_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e0f2f78'/>
+      <elf-symbol name='clk_hw_get_num_parents' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc787f72d'/>
+      <elf-symbol name='clk_hw_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26521648'/>
+      <elf-symbol name='clk_hw_get_parent_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9111ebe'/>
+      <elf-symbol name='clk_hw_get_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29d36816'/>
+      <elf-symbol name='clk_hw_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac3b4fe'/>
+      <elf-symbol name='clk_hw_is_prepared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77e6b761'/>
+      <elf-symbol name='clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32d05044'/>
+      <elf-symbol name='clk_hw_register_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1357df5a'/>
+      <elf-symbol name='clk_hw_round_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x754c9acd'/>
+      <elf-symbol name='clk_hw_set_rate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5a8f409'/>
+      <elf-symbol name='clk_hw_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5443fad'/>
+      <elf-symbol name='clk_hw_unregister_divider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99251d5e'/>
+      <elf-symbol name='clk_hw_unregister_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72bc0bcd'/>
+      <elf-symbol name='clk_hw_unregister_mux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f9023a4'/>
+      <elf-symbol name='clk_notifier_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60091316'/>
+      <elf-symbol name='clk_notifier_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x719e17ff'/>
+      <elf-symbol name='clk_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9a7371'/>
+      <elf-symbol name='clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e1ca751'/>
+      <elf-symbol name='clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x624fcf05'/>
+      <elf-symbol name='clk_register_clkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9822234'/>
+      <elf-symbol name='clk_register_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7c2c6ea'/>
+      <elf-symbol name='clk_register_fixed_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb387366d'/>
+      <elf-symbol name='clk_register_gate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92295424'/>
+      <elf-symbol name='clk_round_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43f81957'/>
+      <elf-symbol name='clk_set_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2396c7f0'/>
+      <elf-symbol name='clk_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76d9b876'/>
+      <elf-symbol name='clk_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x285ed804'/>
+      <elf-symbol name='clk_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb077e70a'/>
+      <elf-symbol name='clk_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7757b51a'/>
+      <elf-symbol name='clockevents_config_and_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11df07b4'/>
+      <elf-symbol name='clocks_calc_mult_shift' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62bb09bf'/>
+      <elf-symbol name='close_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b622b60'/>
+      <elf-symbol name='cma_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3311dc19'/>
+      <elf-symbol name='cma_for_each_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec4a2a21'/>
+      <elf-symbol name='cma_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x287a30ac'/>
+      <elf-symbol name='cma_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cfece84'/>
+      <elf-symbol name='cma_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x334bbb4a'/>
+      <elf-symbol name='compat_alloc_user_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbffde8ec'/>
+      <elf-symbol name='compat_only_sysfs_link_entry_to_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c8e8e02'/>
+      <elf-symbol name='compat_ptr_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52a45d32'/>
+      <elf-symbol name='complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6257a2f'/>
+      <elf-symbol name='complete_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93d6dd8c'/>
+      <elf-symbol name='complete_and_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26cc73c3'/>
+      <elf-symbol name='completion_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddf6ad7a'/>
+      <elf-symbol name='component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c5f14c9'/>
+      <elf-symbol name='component_bind_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe937f5fa'/>
+      <elf-symbol name='component_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55bb940b'/>
+      <elf-symbol name='component_master_add_with_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7abe9fcf'/>
+      <elf-symbol name='component_master_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ea88f62'/>
+      <elf-symbol name='component_match_add_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b21a53b'/>
+      <elf-symbol name='component_unbind_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa046b38d'/>
+      <elf-symbol name='config_ep_by_speed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bd0db36'/>
+      <elf-symbol name='config_group_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a605ad3'/>
+      <elf-symbol name='config_group_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b5c1cda'/>
+      <elf-symbol name='config_item_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd007ad3f'/>
+      <elf-symbol name='config_item_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a9e611d'/>
+      <elf-symbol name='configfs_register_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68c4de9e'/>
+      <elf-symbol name='configfs_unregister_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea988bc8'/>
+      <elf-symbol name='console_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d04664'/>
+      <elf-symbol name='console_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc631580a'/>
+      <elf-symbol name='consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c983e65'/>
+      <elf-symbol name='cpu_have_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41237f71'/>
+      <elf-symbol name='cpu_latency_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x589e1a22'/>
+      <elf-symbol name='cpu_latency_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3aaa15b2'/>
+      <elf-symbol name='cpu_latency_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc528096'/>
+      <elf-symbol name='cpu_pm_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x444f1735'/>
+      <elf-symbol name='cpu_pm_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f98d766'/>
+      <elf-symbol name='cpufreq_add_update_util_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1403ad09'/>
+      <elf-symbol name='cpufreq_cpu_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6860819b'/>
+      <elf-symbol name='cpufreq_cpu_get_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81b1ddb7'/>
+      <elf-symbol name='cpufreq_cpu_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x886c7b78'/>
+      <elf-symbol name='cpufreq_disable_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb09a01a1'/>
+      <elf-symbol name='cpufreq_driver_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc73b173f'/>
+      <elf-symbol name='cpufreq_driver_resolve_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb9154c3'/>
+      <elf-symbol name='cpufreq_driver_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41569533'/>
+      <elf-symbol name='cpufreq_enable_boost_support' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30a5502'/>
+      <elf-symbol name='cpufreq_enable_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x624d602f'/>
+      <elf-symbol name='cpufreq_freq_transition_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68fec1d5'/>
+      <elf-symbol name='cpufreq_freq_transition_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dbe34cc'/>
+      <elf-symbol name='cpufreq_frequency_table_verify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec774acb'/>
+      <elf-symbol name='cpufreq_generic_frequency_table_verify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc289e46d'/>
+      <elf-symbol name='cpufreq_generic_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba2b7f64'/>
+      <elf-symbol name='cpufreq_generic_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5101582a'/>
+      <elf-symbol name='cpufreq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9305f8e6'/>
+      <elf-symbol name='cpufreq_get_driver_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x553b49a4'/>
+      <elf-symbol name='cpufreq_get_policy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x558205f5'/>
+      <elf-symbol name='cpufreq_policy_transition_delay_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fb3fd1'/>
+      <elf-symbol name='cpufreq_quick_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c46233a'/>
+      <elf-symbol name='cpufreq_quick_get_max' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33f0768c'/>
+      <elf-symbol name='cpufreq_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeda7233'/>
+      <elf-symbol name='cpufreq_register_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab27ed45'/>
+      <elf-symbol name='cpufreq_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65d9e877'/>
+      <elf-symbol name='cpufreq_remove_update_util_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3192d768'/>
+      <elf-symbol name='cpufreq_table_index_unsorted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf31f3dc'/>
+      <elf-symbol name='cpufreq_this_cpu_can_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x784f84e0'/>
+      <elf-symbol name='cpufreq_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8658dd2'/>
+      <elf-symbol name='cpuidle_governor_latency_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc319717f'/>
+      <elf-symbol name='cpuidle_pause_and_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf553318d'/>
+      <elf-symbol name='cpuidle_resume_and_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcabe04de'/>
+      <elf-symbol name='cpumask_any_but' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83928ce0'/>
+      <elf-symbol name='cpumask_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ad1db9'/>
+      <elf-symbol name='cpumask_next_and' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4445ab21'/>
+      <elf-symbol name='cpumask_next_wrap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x233eb8eb'/>
+      <elf-symbol name='cpupri_find_fitness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd52a1c9b'/>
+      <elf-symbol name='cpus_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04f945a'/>
+      <elf-symbol name='cpus_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18fb2caf'/>
+      <elf-symbol name='crc32_le' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69dd3b5b'/>
+      <elf-symbol name='crc8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2aae5cc'/>
+      <elf-symbol name='crc8_populate_msb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa8106bc'/>
+      <elf-symbol name='crypto_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x617f1963'/>
+      <elf-symbol name='crypto_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5c9b81b'/>
+      <elf-symbol name='crypto_aead_setauthsize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70fda164'/>
+      <elf-symbol name='crypto_aead_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86f04dd'/>
+      <elf-symbol name='crypto_ahash_finup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca842db7'/>
+      <elf-symbol name='crypto_ahash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5252ee41'/>
+      <elf-symbol name='crypto_alloc_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a651b87'/>
+      <elf-symbol name='crypto_alloc_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x423ff6df'/>
+      <elf-symbol name='crypto_alloc_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaccac105'/>
+      <elf-symbol name='crypto_alloc_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ed56155'/>
+      <elf-symbol name='crypto_alloc_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e32022f'/>
+      <elf-symbol name='crypto_alloc_sync_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa535d4f6'/>
+      <elf-symbol name='crypto_attr_alg_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a11a0fc'/>
+      <elf-symbol name='crypto_check_attr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4934bdd0'/>
+      <elf-symbol name='crypto_cipher_encrypt_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8636029'/>
+      <elf-symbol name='crypto_cipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd960d012'/>
+      <elf-symbol name='crypto_comp_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7c8c35a'/>
+      <elf-symbol name='crypto_comp_decompress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca6b505'/>
+      <elf-symbol name='crypto_destroy_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e49ad49'/>
+      <elf-symbol name='crypto_drop_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1f76103'/>
+      <elf-symbol name='crypto_get_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3232f8ca'/>
+      <elf-symbol name='crypto_grab_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f433ad0'/>
+      <elf-symbol name='crypto_grab_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d1a0664'/>
+      <elf-symbol name='crypto_grab_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa58524fc'/>
+      <elf-symbol name='crypto_grab_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54c6e412'/>
+      <elf-symbol name='crypto_grab_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1755205'/>
+      <elf-symbol name='crypto_has_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951a2773'/>
+      <elf-symbol name='crypto_inst_setname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe31d2ac7'/>
+      <elf-symbol name='crypto_put_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21cd536a'/>
+      <elf-symbol name='crypto_register_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc010019'/>
+      <elf-symbol name='crypto_register_aeads' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14cc4060'/>
+      <elf-symbol name='crypto_register_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429cf632'/>
+      <elf-symbol name='crypto_register_ahashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c4aed31'/>
+      <elf-symbol name='crypto_register_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe558d510'/>
+      <elf-symbol name='crypto_register_algs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75e28dd8'/>
+      <elf-symbol name='crypto_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9879932b'/>
+      <elf-symbol name='crypto_register_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8060860'/>
+      <elf-symbol name='crypto_register_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x903a8c93'/>
+      <elf-symbol name='crypto_register_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fcbfdee'/>
+      <elf-symbol name='crypto_register_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x427bf83c'/>
+      <elf-symbol name='crypto_register_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe418d562'/>
+      <elf-symbol name='crypto_register_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6544ed20'/>
+      <elf-symbol name='crypto_register_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeaf34f5'/>
+      <elf-symbol name='crypto_register_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x895ba341'/>
+      <elf-symbol name='crypto_register_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1486a42c'/>
+      <elf-symbol name='crypto_remove_spawns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0b820c'/>
+      <elf-symbol name='crypto_req_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31752a0d'/>
+      <elf-symbol name='crypto_rng_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71b456c7'/>
+      <elf-symbol name='crypto_shash_alg_has_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12cd8c56'/>
+      <elf-symbol name='crypto_shash_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a06e2ca'/>
+      <elf-symbol name='crypto_shash_final' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa7b75ff'/>
+      <elf-symbol name='crypto_shash_finup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe69b4a75'/>
+      <elf-symbol name='crypto_shash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c113d0c'/>
+      <elf-symbol name='crypto_shash_tfm_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec318a9'/>
+      <elf-symbol name='crypto_shash_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x280a4826'/>
+      <elf-symbol name='crypto_skcipher_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5290ec52'/>
+      <elf-symbol name='crypto_skcipher_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed48f554'/>
+      <elf-symbol name='crypto_skcipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb80ac271'/>
+      <elf-symbol name='crypto_spawn_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd83c0e9'/>
+      <elf-symbol name='crypto_spawn_tfm2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d4b7a96'/>
+      <elf-symbol name='crypto_unregister_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb11bfa74'/>
+      <elf-symbol name='crypto_unregister_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2337f10b'/>
+      <elf-symbol name='crypto_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x710c73b6'/>
+      <elf-symbol name='crypto_unregister_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04c78c3'/>
+      <elf-symbol name='crypto_unregister_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1a12f04'/>
+      <elf-symbol name='crypto_unregister_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x883b95dd'/>
+      <elf-symbol name='crypto_unregister_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90645ab4'/>
+      <elf-symbol name='crypto_unregister_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb547153d'/>
+      <elf-symbol name='crypto_unregister_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf798497b'/>
+      <elf-symbol name='crypto_unregister_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa406e80f'/>
+      <elf-symbol name='crypto_unregister_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7f62c3e'/>
+      <elf-symbol name='csum_ipv6_magic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d65cbd5'/>
+      <elf-symbol name='csum_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe113bbbc'/>
+      <elf-symbol name='csum_tcpudp_nofold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd25bc5d4'/>
+      <elf-symbol name='current_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb5301d7'/>
+      <elf-symbol name='current_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd75ee543'/>
+      <elf-symbol name='d_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbabfe1b'/>
+      <elf-symbol name='d_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383bd26'/>
+      <elf-symbol name='d_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc499dcbd'/>
+      <elf-symbol name='d_make_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x931b832d'/>
+      <elf-symbol name='datagram_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27e3ca13'/>
+      <elf-symbol name='debugfs_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63b7c596'/>
+      <elf-symbol name='debugfs_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13e17040'/>
+      <elf-symbol name='debugfs_create_atomic_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb22eecb'/>
+      <elf-symbol name='debugfs_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2c050b'/>
+      <elf-symbol name='debugfs_create_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6468c409'/>
+      <elf-symbol name='debugfs_create_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b440841'/>
+      <elf-symbol name='debugfs_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2552882'/>
+      <elf-symbol name='debugfs_create_file_unsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76fb7f4c'/>
+      <elf-symbol name='debugfs_create_size_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb72809d5'/>
+      <elf-symbol name='debugfs_create_u16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2861ea26'/>
+      <elf-symbol name='debugfs_create_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597c2901'/>
+      <elf-symbol name='debugfs_create_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1be3a523'/>
+      <elf-symbol name='debugfs_create_u8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f416b69'/>
+      <elf-symbol name='debugfs_create_x32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x889e493e'/>
+      <elf-symbol name='debugfs_create_x64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca01c51c'/>
+      <elf-symbol name='debugfs_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea0e441c'/>
+      <elf-symbol name='debugfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82d37f62'/>
+      <elf-symbol name='dec_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb96e01f3'/>
+      <elf-symbol name='default_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54f363cf'/>
+      <elf-symbol name='deferred_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe730994c'/>
+      <elf-symbol name='del_gendisk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7db3b2f3'/>
+      <elf-symbol name='del_random_ready_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf813e57'/>
+      <elf-symbol name='del_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa4008af'/>
+      <elf-symbol name='del_timer_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf15e728e'/>
+      <elf-symbol name='delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253af43d'/>
+      <elf-symbol name='desc_to_gpio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cbb5bfb'/>
+      <elf-symbol name='destroy_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c03d20c'/>
+      <elf-symbol name='dev_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d063b15'/>
+      <elf-symbol name='dev_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x865a99e0'/>
+      <elf-symbol name='dev_coredumpm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86552fa9'/>
+      <elf-symbol name='dev_coredumpv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb29dbd9'/>
+      <elf-symbol name='dev_driver_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf6eb3ac'/>
+      <elf-symbol name='dev_err_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98776dd5'/>
+      <elf-symbol name='dev_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x469ecc15'/>
+      <elf-symbol name='dev_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8dbca9c1'/>
+      <elf-symbol name='dev_get_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cce78a5'/>
+      <elf-symbol name='dev_get_stats' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd13d8d6d'/>
+      <elf-symbol name='dev_mc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x768f3117'/>
+      <elf-symbol name='dev_mc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86ed0c8'/>
+      <elf-symbol name='dev_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bd2c065'/>
+      <elf-symbol name='dev_pm_clear_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc69b5888'/>
+      <elf-symbol name='dev_pm_domain_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee43354d'/>
+      <elf-symbol name='dev_pm_domain_attach_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39c660ec'/>
+      <elf-symbol name='dev_pm_domain_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62b58487'/>
+      <elf-symbol name='dev_pm_genpd_set_performance_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4056ade'/>
+      <elf-symbol name='dev_pm_opp_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72fa3ef7'/>
+      <elf-symbol name='dev_pm_opp_adjust_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d37e43e'/>
+      <elf-symbol name='dev_pm_opp_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23d704e7'/>
+      <elf-symbol name='dev_pm_opp_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa676cba5'/>
+      <elf-symbol name='dev_pm_opp_find_freq_ceil' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3cf109'/>
+      <elf-symbol name='dev_pm_opp_find_freq_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9d52f'/>
+      <elf-symbol name='dev_pm_opp_find_freq_floor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b01666e'/>
+      <elf-symbol name='dev_pm_opp_free_cpufreq_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e05a71f'/>
+      <elf-symbol name='dev_pm_opp_get_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2aa3414f'/>
+      <elf-symbol name='dev_pm_opp_get_level' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb87fbb3'/>
+      <elf-symbol name='dev_pm_opp_get_max_transition_latency' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3db739'/>
+      <elf-symbol name='dev_pm_opp_get_opp_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd80838ad'/>
+      <elf-symbol name='dev_pm_opp_get_opp_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4747ab7e'/>
+      <elf-symbol name='dev_pm_opp_get_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a7ba270'/>
+      <elf-symbol name='dev_pm_opp_get_suspend_opp_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58850e03'/>
+      <elf-symbol name='dev_pm_opp_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6293bed4'/>
+      <elf-symbol name='dev_pm_opp_init_cpufreq_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb39ff093'/>
+      <elf-symbol name='dev_pm_opp_of_add_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc59c3f0b'/>
+      <elf-symbol name='dev_pm_opp_of_cpumask_add_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cf281e7'/>
+      <elf-symbol name='dev_pm_opp_of_cpumask_remove_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ded56d3'/>
+      <elf-symbol name='dev_pm_opp_of_find_icc_paths' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76278be0'/>
+      <elf-symbol name='dev_pm_opp_of_get_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa21afc5c'/>
+      <elf-symbol name='dev_pm_opp_of_register_em' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67a108ab'/>
+      <elf-symbol name='dev_pm_opp_of_remove_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fc1de96'/>
+      <elf-symbol name='dev_pm_opp_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa911810a'/>
+      <elf-symbol name='dev_pm_opp_put_clkname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c06715c'/>
+      <elf-symbol name='dev_pm_opp_put_opp_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0789530'/>
+      <elf-symbol name='dev_pm_opp_put_regulators' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90581d7e'/>
+      <elf-symbol name='dev_pm_opp_remove_all_dynamic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdef13dea'/>
+      <elf-symbol name='dev_pm_opp_set_bw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8c4268a'/>
+      <elf-symbol name='dev_pm_opp_set_clkname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe678f8c1'/>
+      <elf-symbol name='dev_pm_opp_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f0d0a53'/>
+      <elf-symbol name='dev_pm_opp_set_regulators' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f4a82c6'/>
+      <elf-symbol name='dev_pm_opp_set_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c65bc94'/>
+      <elf-symbol name='dev_pm_opp_set_supported_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf9c5511'/>
+      <elf-symbol name='dev_pm_qos_add_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3397d365'/>
+      <elf-symbol name='dev_pm_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0c4bc07'/>
+      <elf-symbol name='dev_pm_qos_expose_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe066955e'/>
+      <elf-symbol name='dev_pm_qos_hide_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e3ac427'/>
+      <elf-symbol name='dev_pm_qos_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e228a6a'/>
+      <elf-symbol name='dev_pm_qos_remove_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e7eaaa0'/>
+      <elf-symbol name='dev_pm_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74ff26e9'/>
+      <elf-symbol name='dev_pm_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0c4e1c4'/>
+      <elf-symbol name='dev_pm_qos_update_user_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x180cf516'/>
+      <elf-symbol name='dev_pm_set_dedicated_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x660f9121'/>
+      <elf-symbol name='dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f04855c'/>
+      <elf-symbol name='dev_printk_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55f1e668'/>
+      <elf-symbol name='dev_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd00c5004'/>
+      <elf-symbol name='dev_set_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9382dee'/>
+      <elf-symbol name='dev_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb89e4de3'/>
+      <elf-symbol name='dev_uc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c2fa19'/>
+      <elf-symbol name='dev_uc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ab6106'/>
+      <elf-symbol name='devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd5efe81'/>
+      <elf-symbol name='devfreq_add_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x822ee5fc'/>
+      <elf-symbol name='devfreq_cooling_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f718b4b'/>
+      <elf-symbol name='devfreq_monitor_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0fe62e9'/>
+      <elf-symbol name='devfreq_monitor_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffa2e3d3'/>
+      <elf-symbol name='devfreq_monitor_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6207ea'/>
+      <elf-symbol name='devfreq_monitor_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd92588b4'/>
+      <elf-symbol name='devfreq_recommended_opp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x566e0b8b'/>
+      <elf-symbol name='devfreq_register_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x396bea05'/>
+      <elf-symbol name='devfreq_remove_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e6f9015'/>
+      <elf-symbol name='devfreq_resume_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbf77acc'/>
+      <elf-symbol name='devfreq_suspend_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc7d86aa'/>
+      <elf-symbol name='devfreq_unregister_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df99458'/>
+      <elf-symbol name='devfreq_update_interval' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb3ecbef'/>
+      <elf-symbol name='device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82eff8a4'/>
+      <elf-symbol name='device_add_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb21108'/>
+      <elf-symbol name='device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x195f92cb'/>
+      <elf-symbol name='device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f72f0ae'/>
+      <elf-symbol name='device_bind_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbc4df26'/>
+      <elf-symbol name='device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98f3401'/>
+      <elf-symbol name='device_create_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe438826'/>
+      <elf-symbol name='device_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148427c7'/>
+      <elf-symbol name='device_create_with_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x235ab42a'/>
+      <elf-symbol name='device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25c41e3f'/>
+      <elf-symbol name='device_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4120b5ae'/>
+      <elf-symbol name='device_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80ecaf78'/>
+      <elf-symbol name='device_for_each_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe19b409c'/>
+      <elf-symbol name='device_get_child_node_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0bd7020'/>
+      <elf-symbol name='device_get_dma_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13334a6'/>
+      <elf-symbol name='device_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1095c3ab'/>
+      <elf-symbol name='device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x744e031f'/>
+      <elf-symbol name='device_get_named_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e11a5ff'/>
+      <elf-symbol name='device_get_next_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a0ca713'/>
+      <elf-symbol name='device_init_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae7a86a6'/>
+      <elf-symbol name='device_initialize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e0ec40b'/>
+      <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7420a13'/>
+      <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a52c938'/>
+      <elf-symbol name='device_match_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6e68543'/>
+      <elf-symbol name='device_match_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x613f508f'/>
+      <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefe90225'/>
+      <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc78be0f7'/>
+      <elf-symbol name='device_property_read_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0540760'/>
+      <elf-symbol name='device_property_read_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67c02ca5'/>
+      <elf-symbol name='device_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d90dee3'/>
+      <elf-symbol name='device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe25523b'/>
+      <elf-symbol name='device_release_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x454440f1'/>
+      <elf-symbol name='device_remove_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4749845e'/>
+      <elf-symbol name='device_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78042805'/>
+      <elf-symbol name='device_remove_file_self' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd16e89bf'/>
+      <elf-symbol name='device_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c8d479a'/>
+      <elf-symbol name='device_set_wakeup_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9708e35'/>
+      <elf-symbol name='device_set_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9335c84a'/>
+      <elf-symbol name='device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9b63d9f'/>
+      <elf-symbol name='device_wakeup_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f6e2b61'/>
+      <elf-symbol name='device_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37662541'/>
+      <elf-symbol name='devm_add_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfc65577'/>
+      <elf-symbol name='devm_backlight_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x144ca657'/>
+      <elf-symbol name='devm_backlight_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x219e9644'/>
+      <elf-symbol name='devm_blk_ksm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e91cde5'/>
+      <elf-symbol name='devm_clk_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91a66625'/>
+      <elf-symbol name='devm_clk_bulk_get_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d9a55cd'/>
+      <elf-symbol name='devm_clk_bulk_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b3df91'/>
+      <elf-symbol name='devm_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70370712'/>
+      <elf-symbol name='devm_clk_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77de043f'/>
+      <elf-symbol name='devm_clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237ae111'/>
+      <elf-symbol name='devm_clk_hw_register_clkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7371abef'/>
+      <elf-symbol name='devm_clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb653fedc'/>
+      <elf-symbol name='devm_clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9cbd89b'/>
+      <elf-symbol name='devm_devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd42634'/>
+      <elf-symbol name='devm_device_add_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4bbccb6'/>
+      <elf-symbol name='devm_device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbacf79a3'/>
+      <elf-symbol name='devm_device_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89905067'/>
+      <elf-symbol name='devm_drm_panel_bridge_add_typed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58b631d3'/>
+      <elf-symbol name='devm_extcon_dev_allocate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa94b1073'/>
+      <elf-symbol name='devm_extcon_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7f22760'/>
+      <elf-symbol name='devm_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6664e2fa'/>
+      <elf-symbol name='devm_fwnode_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d3cb5f1'/>
+      <elf-symbol name='devm_gen_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cdf9951'/>
+      <elf-symbol name='devm_get_clk_from_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd076b28'/>
+      <elf-symbol name='devm_gpio_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1dd2fd2'/>
+      <elf-symbol name='devm_gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e2badb5'/>
+      <elf-symbol name='devm_gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc352fb3a'/>
+      <elf-symbol name='devm_gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98731f1f'/>
+      <elf-symbol name='devm_gpiod_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee14258a'/>
+      <elf-symbol name='devm_gpiod_get_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eb77c3b'/>
+      <elf-symbol name='devm_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf99d3032'/>
+      <elf-symbol name='devm_gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85864be0'/>
+      <elf-symbol name='devm_gpiod_put_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69bb59f'/>
+      <elf-symbol name='devm_hwspin_lock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde191b21'/>
+      <elf-symbol name='devm_i2c_new_dummy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429040e2'/>
+      <elf-symbol name='devm_iio_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb31e6e32'/>
+      <elf-symbol name='devm_input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70a24c88'/>
+      <elf-symbol name='devm_ioremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe805760'/>
+      <elf-symbol name='devm_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73706e1e'/>
+      <elf-symbol name='devm_ioremap_wc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a54a47e'/>
+      <elf-symbol name='devm_iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae9ac9c8'/>
+      <elf-symbol name='devm_kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b66ebee'/>
+      <elf-symbol name='devm_kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f424ee3'/>
+      <elf-symbol name='devm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545a9955'/>
+      <elf-symbol name='devm_kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bb4b192'/>
+      <elf-symbol name='devm_kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6756163c'/>
+      <elf-symbol name='devm_kstrdup_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dd9eee6'/>
+      <elf-symbol name='devm_kvasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c5b57bb'/>
+      <elf-symbol name='devm_led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee6418c3'/>
+      <elf-symbol name='devm_mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecc95eaa'/>
+      <elf-symbol name='devm_memremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af2c0a3'/>
+      <elf-symbol name='devm_memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7793382e'/>
+      <elf-symbol name='devm_mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ab4ba3'/>
+      <elf-symbol name='devm_nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9db71a0b'/>
+      <elf-symbol name='devm_nvmem_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99e07ee7'/>
+      <elf-symbol name='devm_of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17ec42ae'/>
+      <elf-symbol name='devm_of_icc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb413b74a'/>
+      <elf-symbol name='devm_of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca26aef2'/>
+      <elf-symbol name='devm_of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2457c44'/>
+      <elf-symbol name='devm_phy_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b4effaa'/>
+      <elf-symbol name='devm_phy_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe01580b4'/>
+      <elf-symbol name='devm_phy_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf5379b0'/>
+      <elf-symbol name='devm_pinctrl_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15c778e6'/>
+      <elf-symbol name='devm_pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa260c858'/>
+      <elf-symbol name='devm_pinctrl_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e523e5e'/>
+      <elf-symbol name='devm_pinctrl_register_and_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70fc59bd'/>
+      <elf-symbol name='devm_platform_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefd61ad6'/>
+      <elf-symbol name='devm_platform_ioremap_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x508bac4f'/>
+      <elf-symbol name='devm_power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36ea075a'/>
+      <elf-symbol name='devm_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf86f23ae'/>
+      <elf-symbol name='devm_regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c300146'/>
+      <elf-symbol name='devm_regmap_field_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa89e9493'/>
+      <elf-symbol name='devm_regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d8e7b21'/>
+      <elf-symbol name='devm_regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5109386'/>
+      <elf-symbol name='devm_regulator_get_exclusive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68177c1d'/>
+      <elf-symbol name='devm_regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x553ad590'/>
+      <elf-symbol name='devm_regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cb99b97'/>
+      <elf-symbol name='devm_regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51210ee9'/>
+      <elf-symbol name='devm_request_any_context_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x780570ab'/>
+      <elf-symbol name='devm_request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc54b3ad'/>
+      <elf-symbol name='devm_reset_control_array_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ba92bb9'/>
+      <elf-symbol name='devm_reset_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d5d13e2'/>
+      <elf-symbol name='devm_rtc_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54669b79'/>
+      <elf-symbol name='devm_rtc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3cb8ecf'/>
+      <elf-symbol name='devm_snd_dmaengine_pcm_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cf7ccfa'/>
+      <elf-symbol name='devm_snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7596c1f'/>
+      <elf-symbol name='devm_snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed5149a'/>
+      <elf-symbol name='devm_spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd54534a'/>
+      <elf-symbol name='devm_thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6d26b08'/>
+      <elf-symbol name='devm_thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1b583b5'/>
+      <elf-symbol name='devm_thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47f25af7'/>
+      <elf-symbol name='devm_usb_get_phy_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe47b07a'/>
+      <elf-symbol name='devm_watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78172947'/>
+      <elf-symbol name='devres_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bcc9edf'/>
+      <elf-symbol name='devres_alloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3eec7b0'/>
+      <elf-symbol name='devres_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe93e49c3'/>
+      <elf-symbol name='devres_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6abdf02e'/>
+      <elf-symbol name='disable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce4ca6f'/>
+      <elf-symbol name='disable_irq_nosync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27bbf221'/>
+      <elf-symbol name='disable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf21e1f9b'/>
+      <elf-symbol name='disk_end_io_acct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf07fa83'/>
+      <elf-symbol name='disk_start_io_acct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3098dcfd'/>
+      <elf-symbol name='divider_get_val' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e798ffb'/>
+      <elf-symbol name='divider_recalc_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x676860d8'/>
+      <elf-symbol name='divider_ro_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53380227'/>
+      <elf-symbol name='divider_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbda3e7'/>
+      <elf-symbol name='dma_alloc_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c356292'/>
+      <elf-symbol name='dma_alloc_noncoherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd712ebb8'/>
+      <elf-symbol name='dma_async_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4bd9392'/>
+      <elf-symbol name='dma_async_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde0b1c4e'/>
+      <elf-symbol name='dma_async_tx_descriptor_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32280852'/>
+      <elf-symbol name='dma_buf_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccc4fd'/>
+      <elf-symbol name='dma_buf_begin_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66dd46f0'/>
+      <elf-symbol name='dma_buf_begin_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd2e4484'/>
+      <elf-symbol name='dma_buf_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x782e2679'/>
+      <elf-symbol name='dma_buf_end_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48a9f9d8'/>
+      <elf-symbol name='dma_buf_end_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79e8b8a5'/>
+      <elf-symbol name='dma_buf_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0ef0cdf'/>
+      <elf-symbol name='dma_buf_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x449af84b'/>
+      <elf-symbol name='dma_buf_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdba63bc8'/>
+      <elf-symbol name='dma_buf_map_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc33df55e'/>
+      <elf-symbol name='dma_buf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb494a60'/>
+      <elf-symbol name='dma_buf_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc85bbb3e'/>
+      <elf-symbol name='dma_buf_unmap_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fd64124'/>
+      <elf-symbol name='dma_buf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7835e47'/>
+      <elf-symbol name='dma_buf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e5a645e'/>
+      <elf-symbol name='dma_direct_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d6185a8'/>
+      <elf-symbol name='dma_direct_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x358b0b9b'/>
+      <elf-symbol name='dma_fence_add_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e21c9a1'/>
+      <elf-symbol name='dma_fence_context_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14605535'/>
+      <elf-symbol name='dma_fence_default_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x350ea558'/>
+      <elf-symbol name='dma_fence_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd8166a1'/>
+      <elf-symbol name='dma_fence_get_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e0b1deb'/>
+      <elf-symbol name='dma_fence_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16dee44d'/>
+      <elf-symbol name='dma_fence_match_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacaa4c72'/>
+      <elf-symbol name='dma_fence_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe123f3d9'/>
+      <elf-symbol name='dma_fence_remove_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b20fb95'/>
+      <elf-symbol name='dma_fence_signal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x731c4a9c'/>
+      <elf-symbol name='dma_fence_signal_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d02cd70'/>
+      <elf-symbol name='dma_fence_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98c039dc'/>
+      <elf-symbol name='dma_free_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9def071d'/>
+      <elf-symbol name='dma_free_noncoherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7723ee0'/>
+      <elf-symbol name='dma_get_merge_boundary' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde225c4'/>
+      <elf-symbol name='dma_get_sgtable_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd9a72db'/>
+      <elf-symbol name='dma_get_slave_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x357e2032'/>
+      <elf-symbol name='dma_get_slave_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe869565d'/>
+      <elf-symbol name='dma_heap_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73a8775f'/>
+      <elf-symbol name='dma_heap_buffer_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9950bd68'/>
+      <elf-symbol name='dma_heap_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeff75c0b'/>
+      <elf-symbol name='dma_heap_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcffa53e'/>
+      <elf-symbol name='dma_heap_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf39b6569'/>
+      <elf-symbol name='dma_heap_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed3a3cb3'/>
+      <elf-symbol name='dma_heap_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67e2f47'/>
+      <elf-symbol name='dma_map_page_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73930b77'/>
+      <elf-symbol name='dma_map_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2b9c72d'/>
+      <elf-symbol name='dma_map_sg_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6354401f'/>
+      <elf-symbol name='dma_max_mapping_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba00248b'/>
+      <elf-symbol name='dma_mmap_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf41300f2'/>
+      <elf-symbol name='dma_pool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x678b96ec'/>
+      <elf-symbol name='dma_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff342b11'/>
+      <elf-symbol name='dma_pool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5aa7165'/>
+      <elf-symbol name='dma_pool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f7754a8'/>
+      <elf-symbol name='dma_release_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa67739e7'/>
+      <elf-symbol name='dma_request_chan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3b14a8'/>
+      <elf-symbol name='dma_resv_add_excl_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa53a4570'/>
+      <elf-symbol name='dma_resv_add_shared_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcf8191f'/>
+      <elf-symbol name='dma_resv_reserve_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85d17ccc'/>
+      <elf-symbol name='dma_resv_test_signaled_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbae6253c'/>
+      <elf-symbol name='dma_resv_wait_timeout_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38740874'/>
+      <elf-symbol name='dma_set_coherent_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eaf04d2'/>
+      <elf-symbol name='dma_set_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6601b31'/>
+      <elf-symbol name='dma_sync_sg_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e3b257a'/>
+      <elf-symbol name='dma_sync_sg_for_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd87bdc6a'/>
+      <elf-symbol name='dma_sync_single_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9525a758'/>
+      <elf-symbol name='dma_sync_single_for_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65cc0e8'/>
+      <elf-symbol name='dma_unmap_page_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f8d82a9'/>
+      <elf-symbol name='dma_unmap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14218eaa'/>
+      <elf-symbol name='dma_unmap_sg_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba6ac8a5'/>
+      <elf-symbol name='dmabuf_page_pool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7518a95c'/>
+      <elf-symbol name='dmabuf_page_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7ca016b'/>
+      <elf-symbol name='dmabuf_page_pool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1f4f3d0'/>
+      <elf-symbol name='dmabuf_page_pool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4293c90'/>
+      <elf-symbol name='dmaengine_unmap_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x571370e'/>
+      <elf-symbol name='dmam_alloc_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1224b3f1'/>
+      <elf-symbol name='dmam_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa612d24a'/>
+      <elf-symbol name='dmam_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe92d4d'/>
+      <elf-symbol name='do_SAK' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x629de5e4'/>
+      <elf-symbol name='do_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x952664c5'/>
+      <elf-symbol name='do_wait_intr_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5102a30b'/>
+      <elf-symbol name='down' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6626afca'/>
+      <elf-symbol name='down_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81b395b3'/>
+      <elf-symbol name='down_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3355da1c'/>
+      <elf-symbol name='down_read_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88f5cdef'/>
+      <elf-symbol name='down_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9682235'/>
+      <elf-symbol name='down_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc7e2596'/>
+      <elf-symbol name='down_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28ed2847'/>
+      <elf-symbol name='downgrade_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd486fb9c'/>
+      <elf-symbol name='dput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83c77e7'/>
+      <elf-symbol name='drain_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa38602cd'/>
+      <elf-symbol name='driver_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbfbf502'/>
+      <elf-symbol name='driver_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eb3c66f'/>
+      <elf-symbol name='driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x467b9d5c'/>
+      <elf-symbol name='driver_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d1464d2'/>
+      <elf-symbol name='driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x717b723b'/>
+      <elf-symbol name='drm_add_edid_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee346b14'/>
+      <elf-symbol name='drm_add_modes_noedid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ecf1161'/>
+      <elf-symbol name='drm_atomic_add_affected_connectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74360bb5'/>
+      <elf-symbol name='drm_atomic_add_affected_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bb5b186'/>
+      <elf-symbol name='drm_atomic_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f002c2d'/>
+      <elf-symbol name='drm_atomic_get_connector_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e4d0436'/>
+      <elf-symbol name='drm_atomic_get_crtc_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70284954'/>
+      <elf-symbol name='drm_atomic_get_new_connector_for_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f49c257'/>
+      <elf-symbol name='drm_atomic_get_old_connector_for_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6861250b'/>
+      <elf-symbol name='drm_atomic_get_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ff5bc18'/>
+      <elf-symbol name='drm_atomic_get_private_obj_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc168ab24'/>
+      <elf-symbol name='drm_atomic_helper_bridge_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22028983'/>
+      <elf-symbol name='drm_atomic_helper_bridge_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b94a26'/>
+      <elf-symbol name='drm_atomic_helper_bridge_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd268bb31'/>
+      <elf-symbol name='drm_atomic_helper_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70c9ed37'/>
+      <elf-symbol name='drm_atomic_helper_check_modeset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x360f4f18'/>
+      <elf-symbol name='drm_atomic_helper_check_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39186420'/>
+      <elf-symbol name='drm_atomic_helper_check_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b79cbe5'/>
+      <elf-symbol name='drm_atomic_helper_cleanup_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd409071b'/>
+      <elf-symbol name='drm_atomic_helper_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbec1c056'/>
+      <elf-symbol name='drm_atomic_helper_commit_cleanup_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacdc5f95'/>
+      <elf-symbol name='drm_atomic_helper_commit_duplicated_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x173403d8'/>
+      <elf-symbol name='drm_atomic_helper_commit_hw_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f03ab8e'/>
+      <elf-symbol name='drm_atomic_helper_commit_modeset_disables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb7abe07'/>
+      <elf-symbol name='drm_atomic_helper_commit_modeset_enables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a5753e3'/>
+      <elf-symbol name='drm_atomic_helper_commit_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2117b0c2'/>
+      <elf-symbol name='drm_atomic_helper_commit_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d67bdcb'/>
+      <elf-symbol name='drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe88b0b92'/>
+      <elf-symbol name='drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd938d662'/>
+      <elf-symbol name='drm_atomic_helper_connector_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fc9d384'/>
+      <elf-symbol name='drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16c7fcc2'/>
+      <elf-symbol name='drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2f73cdb'/>
+      <elf-symbol name='drm_atomic_helper_crtc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71574665'/>
+      <elf-symbol name='drm_atomic_helper_damage_merged' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe71eba50'/>
+      <elf-symbol name='drm_atomic_helper_dirtyfb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7463b29d'/>
+      <elf-symbol name='drm_atomic_helper_disable_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee5f6b90'/>
+      <elf-symbol name='drm_atomic_helper_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2047af0b'/>
+      <elf-symbol name='drm_atomic_helper_fake_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x217b57d5'/>
+      <elf-symbol name='drm_atomic_helper_page_flip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8cc9cf2'/>
+      <elf-symbol name='drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dfa2d5f'/>
+      <elf-symbol name='drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf247b62f'/>
+      <elf-symbol name='drm_atomic_helper_plane_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd055fb5f'/>
+      <elf-symbol name='drm_atomic_helper_prepare_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d29ace4'/>
+      <elf-symbol name='drm_atomic_helper_set_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f74362'/>
+      <elf-symbol name='drm_atomic_helper_setup_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfedd9f1c'/>
+      <elf-symbol name='drm_atomic_helper_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39a61a8c'/>
+      <elf-symbol name='drm_atomic_helper_swap_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6082028d'/>
+      <elf-symbol name='drm_atomic_helper_update_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9edb2137'/>
+      <elf-symbol name='drm_atomic_helper_wait_for_dependencies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d2c2ae9'/>
+      <elf-symbol name='drm_atomic_helper_wait_for_fences' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1137e9a7'/>
+      <elf-symbol name='drm_atomic_helper_wait_for_flip_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8725cf12'/>
+      <elf-symbol name='drm_atomic_nonblocking_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb13ad84e'/>
+      <elf-symbol name='drm_atomic_normalize_zpos' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe12a02c0'/>
+      <elf-symbol name='drm_atomic_private_obj_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f575726'/>
+      <elf-symbol name='drm_atomic_private_obj_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcace20a1'/>
+      <elf-symbol name='drm_atomic_set_crtc_for_connector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19c60232'/>
+      <elf-symbol name='drm_atomic_set_crtc_for_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf2e0963'/>
+      <elf-symbol name='drm_atomic_set_fb_for_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f9a7af1'/>
+      <elf-symbol name='drm_atomic_set_mode_prop_for_crtc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53351a52'/>
+      <elf-symbol name='drm_atomic_state_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd34096a3'/>
+      <elf-symbol name='drm_atomic_state_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fba2987'/>
+      <elf-symbol name='drm_bridge_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56f85f08'/>
+      <elf-symbol name='drm_bridge_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12c1de06'/>
+      <elf-symbol name='drm_bridge_chain_mode_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf53135e4'/>
+      <elf-symbol name='drm_bridge_hpd_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44ec4f10'/>
+      <elf-symbol name='drm_bridge_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5769c99'/>
+      <elf-symbol name='drm_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c98b9c5'/>
+      <elf-symbol name='drm_connector_attach_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04514ad'/>
+      <elf-symbol name='drm_connector_attach_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf61fc4e0'/>
+      <elf-symbol name='drm_connector_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ef49a1e'/>
+      <elf-symbol name='drm_connector_has_possible_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbe2b48b'/>
+      <elf-symbol name='drm_connector_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ebb11f4'/>
+      <elf-symbol name='drm_connector_init_with_ddc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a0ed26'/>
+      <elf-symbol name='drm_connector_list_iter_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e2e81fb'/>
+      <elf-symbol name='drm_connector_list_iter_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea6f578b'/>
+      <elf-symbol name='drm_connector_list_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0c44ef3'/>
+      <elf-symbol name='drm_connector_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdee03a34'/>
+      <elf-symbol name='drm_connector_set_panel_orientation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25d43690'/>
+      <elf-symbol name='drm_connector_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x754513e2'/>
+      <elf-symbol name='drm_connector_update_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dad4c71'/>
+      <elf-symbol name='drm_crtc_arm_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd185baf7'/>
+      <elf-symbol name='drm_crtc_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6cdd750'/>
+      <elf-symbol name='drm_crtc_enable_color_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44cfb0fc'/>
+      <elf-symbol name='drm_crtc_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70ba125b'/>
+      <elf-symbol name='drm_crtc_init_with_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdec4dc6b'/>
+      <elf-symbol name='drm_crtc_send_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf03750ed'/>
+      <elf-symbol name='drm_crtc_set_max_vblank_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d5ab94'/>
+      <elf-symbol name='drm_crtc_vblank_count_and_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf411f463'/>
+      <elf-symbol name='drm_crtc_vblank_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe51a6fdd'/>
+      <elf-symbol name='drm_crtc_vblank_helper_get_vblank_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2baee06b'/>
+      <elf-symbol name='drm_crtc_vblank_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd516854f'/>
+      <elf-symbol name='drm_crtc_vblank_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9912b41a'/>
+      <elf-symbol name='drm_crtc_vblank_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22e60eb2'/>
+      <elf-symbol name='drm_crtc_wait_one_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253e8907'/>
+      <elf-symbol name='drm_cvt_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66e53e2f'/>
+      <elf-symbol name='drm_debugfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1df8c0e5'/>
+      <elf-symbol name='drm_detect_hdmi_monitor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8ad5d01'/>
+      <elf-symbol name='drm_detect_monitor_audio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66551bc7'/>
+      <elf-symbol name='drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c8edce'/>
+      <elf-symbol name='drm_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0aabb69'/>
+      <elf-symbol name='drm_dev_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcbe20f9'/>
+      <elf-symbol name='drm_dev_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8a034df'/>
+      <elf-symbol name='drm_dev_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8529df93'/>
+      <elf-symbol name='drm_dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc932c80e'/>
+      <elf-symbol name='drm_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4957f12f'/>
+      <elf-symbol name='drm_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd0fffc3'/>
+      <elf-symbol name='drm_dev_set_unique' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb31006c'/>
+      <elf-symbol name='drm_dev_unplug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61494dec'/>
+      <elf-symbol name='drm_dev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc879fea'/>
+      <elf-symbol name='drm_display_mode_to_videomode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe9f72f3'/>
+      <elf-symbol name='drm_do_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe72ece59'/>
+      <elf-symbol name='drm_dp_aux_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x286e487a'/>
+      <elf-symbol name='drm_dp_aux_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb18941c4'/>
+      <elf-symbol name='drm_dp_bw_code_to_link_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73011db0'/>
+      <elf-symbol name='drm_dp_channel_eq_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedcf81ce'/>
+      <elf-symbol name='drm_dp_clock_recovery_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d701329'/>
+      <elf-symbol name='drm_dp_dpcd_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9e4430'/>
+      <elf-symbol name='drm_dp_dpcd_read_link_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7975e1d'/>
+      <elf-symbol name='drm_dp_dpcd_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x578de86e'/>
+      <elf-symbol name='drm_dp_get_adjust_request_pre_emphasis' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x582f248e'/>
+      <elf-symbol name='drm_dp_get_adjust_request_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5c99a79'/>
+      <elf-symbol name='drm_dp_get_edid_quirks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2f5c65b'/>
+      <elf-symbol name='drm_dp_link_rate_to_bw_code' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26815dbc'/>
+      <elf-symbol name='drm_dp_link_train_channel_eq_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48b62a57'/>
+      <elf-symbol name='drm_dp_link_train_clock_recovery_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ff9496'/>
+      <elf-symbol name='drm_dsc_pps_payload_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d8fcaa'/>
+      <elf-symbol name='drm_edid_block_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd13f9985'/>
+      <elf-symbol name='drm_encoder_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e95e024'/>
+      <elf-symbol name='drm_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29026501'/>
+      <elf-symbol name='drm_event_cancel_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a72039b'/>
+      <elf-symbol name='drm_event_reserve_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ce1195'/>
+      <elf-symbol name='drm_fb_cma_get_gem_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65cb1ab4'/>
+      <elf-symbol name='drm_flip_work_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd60ff1c2'/>
+      <elf-symbol name='drm_flip_work_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a2ed2c'/>
+      <elf-symbol name='drm_flip_work_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x737100b1'/>
+      <elf-symbol name='drm_flip_work_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcb59b84'/>
+      <elf-symbol name='drm_format_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf826786c'/>
+      <elf-symbol name='drm_framebuffer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c9caa48'/>
+      <elf-symbol name='drm_gem_cma_dumb_create_internal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd6c47ff'/>
+      <elf-symbol name='drm_gem_cma_free_object' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3deffe07'/>
+      <elf-symbol name='drm_gem_cma_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61391aa7'/>
+      <elf-symbol name='drm_gem_cma_prime_get_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bd080a9'/>
+      <elf-symbol name='drm_gem_cma_prime_import_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41dcdb5a'/>
+      <elf-symbol name='drm_gem_cma_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55d36da7'/>
+      <elf-symbol name='drm_gem_cma_prime_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7172d252'/>
+      <elf-symbol name='drm_gem_cma_prime_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe00e7321'/>
+      <elf-symbol name='drm_gem_create_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaeb96c3'/>
+      <elf-symbol name='drm_gem_dmabuf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa429c951'/>
+      <elf-symbol name='drm_gem_dmabuf_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x996b75d1'/>
+      <elf-symbol name='drm_gem_dmabuf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b22e2bb'/>
+      <elf-symbol name='drm_gem_dmabuf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0f9b753'/>
+      <elf-symbol name='drm_gem_fb_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda93ad4f'/>
+      <elf-symbol name='drm_gem_fb_create_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2211a7a9'/>
+      <elf-symbol name='drm_gem_fb_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74961691'/>
+      <elf-symbol name='drm_gem_fb_get_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x414fb2e1'/>
+      <elf-symbol name='drm_gem_fb_prepare_fb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fbe93c3'/>
+      <elf-symbol name='drm_gem_free_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x308cf995'/>
+      <elf-symbol name='drm_gem_get_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x797a3264'/>
+      <elf-symbol name='drm_gem_handle_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x986e0c9'/>
+      <elf-symbol name='drm_gem_lock_reservations' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdd626fd'/>
+      <elf-symbol name='drm_gem_map_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a3e5c6'/>
+      <elf-symbol name='drm_gem_map_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a587a'/>
+      <elf-symbol name='drm_gem_map_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b840af7'/>
+      <elf-symbol name='drm_gem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9878c413'/>
+      <elf-symbol name='drm_gem_mmap_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7a16ce3'/>
+      <elf-symbol name='drm_gem_object_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd680a377'/>
+      <elf-symbol name='drm_gem_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b4e8e11'/>
+      <elf-symbol name='drm_gem_object_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ec3dd7e'/>
+      <elf-symbol name='drm_gem_object_put_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8f1ef9f'/>
+      <elf-symbol name='drm_gem_object_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefbf620'/>
+      <elf-symbol name='drm_gem_prime_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe35f42c1'/>
+      <elf-symbol name='drm_gem_prime_fd_to_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd8e0831'/>
+      <elf-symbol name='drm_gem_prime_handle_to_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd478672'/>
+      <elf-symbol name='drm_gem_prime_import' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadfd93a3'/>
+      <elf-symbol name='drm_gem_prime_import_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdf9f5e5'/>
+      <elf-symbol name='drm_gem_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30aa3dee'/>
+      <elf-symbol name='drm_gem_private_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x675edb93'/>
+      <elf-symbol name='drm_gem_put_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c338ca'/>
+      <elf-symbol name='drm_gem_shmem_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65779900'/>
+      <elf-symbol name='drm_gem_shmem_free_object' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x691f3e7d'/>
+      <elf-symbol name='drm_gem_shmem_get_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3983c6a3'/>
+      <elf-symbol name='drm_gem_shmem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x445abade'/>
+      <elf-symbol name='drm_gem_shmem_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae0886f9'/>
+      <elf-symbol name='drm_gem_shmem_print_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67825ad9'/>
+      <elf-symbol name='drm_gem_shmem_unpin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf64f6145'/>
+      <elf-symbol name='drm_gem_shmem_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ac2ebfa'/>
+      <elf-symbol name='drm_gem_shmem_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3564fbad'/>
+      <elf-symbol name='drm_gem_unlock_reservations' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71e9562f'/>
+      <elf-symbol name='drm_gem_unmap_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73788b7f'/>
+      <elf-symbol name='drm_gem_vm_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcace2848'/>
+      <elf-symbol name='drm_gem_vm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b8d8133'/>
+      <elf-symbol name='drm_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b286bcb'/>
+      <elf-symbol name='drm_get_format_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x400fbf4b'/>
+      <elf-symbol name='drm_get_format_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e095f11'/>
+      <elf-symbol name='drm_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x184a4f1'/>
+      <elf-symbol name='drm_hdmi_avi_infoframe_from_display_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde3ffdd6'/>
+      <elf-symbol name='drm_helper_hpd_irq_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30ed53f'/>
+      <elf-symbol name='drm_helper_mode_fill_fb_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa8ddbd7'/>
+      <elf-symbol name='drm_helper_probe_single_connector_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b96025a'/>
+      <elf-symbol name='drm_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ff8e5b3'/>
+      <elf-symbol name='drm_irq_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c5500a4'/>
+      <elf-symbol name='drm_irq_uninstall' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc63f7447'/>
+      <elf-symbol name='drm_kms_helper_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15e4a644'/>
+      <elf-symbol name='drm_kms_helper_poll_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf81d44ee'/>
+      <elf-symbol name='drm_kms_helper_poll_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x750cb7d'/>
+      <elf-symbol name='drm_mm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0517d7a'/>
+      <elf-symbol name='drm_mm_insert_node_in_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4032484'/>
+      <elf-symbol name='drm_mm_print' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7acb66'/>
+      <elf-symbol name='drm_mm_remove_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b7ebf95'/>
+      <elf-symbol name='drm_mm_takedown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57698a50'/>
+      <elf-symbol name='drm_mode_config_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d6bf4c3'/>
+      <elf-symbol name='drm_mode_config_helper_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05dca62'/>
+      <elf-symbol name='drm_mode_config_helper_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd2cf725'/>
+      <elf-symbol name='drm_mode_config_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba6cd7db'/>
+      <elf-symbol name='drm_mode_convert_to_umode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4694508f'/>
+      <elf-symbol name='drm_mode_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ce050be'/>
+      <elf-symbol name='drm_mode_debug_printmodeline' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ed3c600'/>
+      <elf-symbol name='drm_mode_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38008d5d'/>
+      <elf-symbol name='drm_mode_duplicate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a740e0'/>
+      <elf-symbol name='drm_mode_equal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9b4753'/>
+      <elf-symbol name='drm_mode_equal_no_clocks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ab87110'/>
+      <elf-symbol name='drm_mode_object_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23234146'/>
+      <elf-symbol name='drm_mode_object_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b8121d1'/>
+      <elf-symbol name='drm_mode_object_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd905962e'/>
+      <elf-symbol name='drm_mode_probed_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3b14222'/>
+      <elf-symbol name='drm_mode_vrefresh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1b5340a'/>
+      <elf-symbol name='drm_modeset_acquire_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9cbb1ba'/>
+      <elf-symbol name='drm_modeset_acquire_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3590e4b4'/>
+      <elf-symbol name='drm_modeset_backoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d428e'/>
+      <elf-symbol name='drm_modeset_drop_locks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6f3829f'/>
+      <elf-symbol name='drm_modeset_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x801de275'/>
+      <elf-symbol name='drm_modeset_lock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6743c598'/>
+      <elf-symbol name='drm_modeset_lock_all_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82e6a663'/>
+      <elf-symbol name='drm_modeset_lock_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f66d2e5'/>
+      <elf-symbol name='drm_modeset_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf119b0c0'/>
+      <elf-symbol name='drm_modeset_unlock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x269d89cc'/>
+      <elf-symbol name='drm_object_attach_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2da16d8f'/>
+      <elf-symbol name='drm_of_component_match_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c70b050'/>
+      <elf-symbol name='drm_of_find_possible_crtcs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bb2cf5b'/>
+      <elf-symbol name='drm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74f2e73c'/>
+      <elf-symbol name='drm_panel_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac0085be'/>
+      <elf-symbol name='drm_panel_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6c47e89'/>
+      <elf-symbol name='drm_panel_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99b9f8ad'/>
+      <elf-symbol name='drm_panel_get_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f928692'/>
+      <elf-symbol name='drm_panel_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23008694'/>
+      <elf-symbol name='drm_panel_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaafc323'/>
+      <elf-symbol name='drm_panel_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a0851f'/>
+      <elf-symbol name='drm_panel_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe47478a7'/>
+      <elf-symbol name='drm_plane_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3b2b954'/>
+      <elf-symbol name='drm_plane_create_alpha_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6775321d'/>
+      <elf-symbol name='drm_plane_create_blend_mode_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe7b9c60'/>
+      <elf-symbol name='drm_plane_create_rotation_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadee4e98'/>
+      <elf-symbol name='drm_plane_create_zpos_immutable_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x358fc590'/>
+      <elf-symbol name='drm_plane_create_zpos_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4eee9974'/>
+      <elf-symbol name='drm_plane_enable_fb_damage_clips' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x918e0051'/>
+      <elf-symbol name='drm_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdd3c6a3'/>
+      <elf-symbol name='drm_prime_gem_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38004586'/>
+      <elf-symbol name='drm_prime_pages_to_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c8bdaf0'/>
+      <elf-symbol name='drm_prime_sg_to_page_addr_arrays' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4203a999'/>
+      <elf-symbol name='drm_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28779e52'/>
+      <elf-symbol name='drm_property_blob_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d72168'/>
+      <elf-symbol name='drm_property_blob_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3b104e4'/>
+      <elf-symbol name='drm_property_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x907be143'/>
+      <elf-symbol name='drm_property_create_bitmask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde1273bd'/>
+      <elf-symbol name='drm_property_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34643096'/>
+      <elf-symbol name='drm_property_create_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79a20f1'/>
+      <elf-symbol name='drm_property_create_enum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffb6c1e1'/>
+      <elf-symbol name='drm_property_create_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30cb7285'/>
+      <elf-symbol name='drm_property_create_signed_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89462cac'/>
+      <elf-symbol name='drm_property_lookup_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853e2820'/>
+      <elf-symbol name='drm_property_replace_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdda92fda'/>
+      <elf-symbol name='drm_puts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x521ad6d0'/>
+      <elf-symbol name='drm_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72fd07be'/>
+      <elf-symbol name='drm_rect_calc_hscale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d50570f'/>
+      <elf-symbol name='drm_rect_calc_vscale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91fec1cc'/>
+      <elf-symbol name='drm_rect_clip_scaled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99fd20aa'/>
+      <elf-symbol name='drm_rect_intersect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x871ab41a'/>
+      <elf-symbol name='drm_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e52dc5b'/>
+      <elf-symbol name='drm_rotation_simplify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf666902'/>
+      <elf-symbol name='drm_self_refresh_helper_alter_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6df1563d'/>
+      <elf-symbol name='drm_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbc21800'/>
+      <elf-symbol name='drm_send_event_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59c28641'/>
+      <elf-symbol name='drm_set_preferred_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcab9def'/>
+      <elf-symbol name='drm_simple_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b942b8'/>
+      <elf-symbol name='drm_state_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b88182f'/>
+      <elf-symbol name='drm_syncobj_add_point' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82fabd7d'/>
+      <elf-symbol name='drm_syncobj_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacdb94cc'/>
+      <elf-symbol name='drm_syncobj_find_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbde5c9e7'/>
+      <elf-symbol name='drm_syncobj_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a411479'/>
+      <elf-symbol name='drm_syncobj_replace_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89747265'/>
+      <elf-symbol name='drm_sysfs_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d08bee'/>
+      <elf-symbol name='drm_universal_plane_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x826931b2'/>
+      <elf-symbol name='drm_vblank_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb93b55a'/>
+      <elf-symbol name='drm_writeback_connector_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a6ad84'/>
+      <elf-symbol name='drm_writeback_queue_job' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2cf3f0'/>
+      <elf-symbol name='drm_writeback_signal_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac0371f'/>
+      <elf-symbol name='drmm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a6fff5'/>
+      <elf-symbol name='drmm_mode_config_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17d27791'/>
+      <elf-symbol name='dst_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ecde61'/>
+      <elf-symbol name='dump_backtrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6f4a15f'/>
+      <elf-symbol name='dump_stack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2dc060'/>
+      <elf-symbol name='dup_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8f527d'/>
+      <elf-symbol name='dw_handle_msi_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0dd58ce'/>
+      <elf-symbol name='dw_pcie_host_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba0c4b4d'/>
+      <elf-symbol name='dw_pcie_msi_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x834cb49f'/>
+      <elf-symbol name='dw_pcie_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7791e066'/>
+      <elf-symbol name='dw_pcie_setup_rc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c214df6'/>
+      <elf-symbol name='dw_pcie_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe9a83d5'/>
+      <elf-symbol name='dwc3_send_gadget_ep_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb78da76'/>
+      <elf-symbol name='dwc3_stop_active_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc4ba7fc'/>
+      <elf-symbol name='em_cpu_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42c9a04'/>
+      <elf-symbol name='emergency_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0c05159'/>
+      <elf-symbol name='enable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcec0987'/>
+      <elf-symbol name='enable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335c570f'/>
+      <elf-symbol name='errno_to_blk_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x612bfd89'/>
+      <elf-symbol name='eth_commit_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb77a141'/>
+      <elf-symbol name='eth_mac_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd424df08'/>
+      <elf-symbol name='eth_platform_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x302d3a8c'/>
+      <elf-symbol name='eth_prepare_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x960d867d'/>
+      <elf-symbol name='eth_type_trans' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6bfa20e'/>
+      <elf-symbol name='eth_validate_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe895a32d'/>
+      <elf-symbol name='ether_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad03d385'/>
+      <elf-symbol name='ethtool_op_get_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf2e3eb8'/>
+      <elf-symbol name='ethtool_op_get_ts_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79d0e54f'/>
+      <elf-symbol name='ethtool_virtdev_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1de0572'/>
+      <elf-symbol name='event_triggers_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d770c8a'/>
+      <elf-symbol name='eventfd_ctx_fdget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd67364f7'/>
+      <elf-symbol name='eventfd_ctx_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x941f2aaa'/>
+      <elf-symbol name='eventfd_signal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf0f75c6'/>
+      <elf-symbol name='extcon_get_edev_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d9602e2'/>
+      <elf-symbol name='extcon_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd879db2'/>
+      <elf-symbol name='extcon_get_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbf5d173'/>
+      <elf-symbol name='extcon_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfba2266'/>
+      <elf-symbol name='extcon_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a3024f'/>
+      <elf-symbol name='extcon_set_property_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x482e2ebd'/>
+      <elf-symbol name='extcon_set_state_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bf5c4bc'/>
+      <elf-symbol name='extcon_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a7652e4'/>
+      <elf-symbol name='fasync_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad4095b'/>
+      <elf-symbol name='fd_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0585911'/>
+      <elf-symbol name='fget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4926c9f7'/>
+      <elf-symbol name='file_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58ef6e4f'/>
+      <elf-symbol name='filp_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18603e77'/>
+      <elf-symbol name='filp_open_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fa7cdb4'/>
+      <elf-symbol name='find_extend_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa97ac25c'/>
+      <elf-symbol name='find_get_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62f521f2'/>
+      <elf-symbol name='find_last_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a68816'/>
+      <elf-symbol name='find_next_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3d105'/>
+      <elf-symbol name='find_next_zero_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479c3c86'/>
+      <elf-symbol name='find_task_by_vpid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b706beb'/>
+      <elf-symbol name='find_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71bcaf53'/>
+      <elf-symbol name='finish_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92540fbf'/>
+      <elf-symbol name='firmware_request_nowarn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73cfdc4d'/>
+      <elf-symbol name='flush_dcache_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe7fe16d'/>
+      <elf-symbol name='flush_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1148c0ea'/>
+      <elf-symbol name='flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4735ac17'/>
+      <elf-symbol name='flush_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42160169'/>
+      <elf-symbol name='fput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85ef04fe'/>
+      <elf-symbol name='frame_vector_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65246b8'/>
+      <elf-symbol name='frame_vector_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d5f9555'/>
+      <elf-symbol name='frame_vector_to_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5e5573a'/>
+      <elf-symbol name='free_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x412f689d'/>
+      <elf-symbol name='free_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e5c5bed'/>
+      <elf-symbol name='free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1514a3b'/>
+      <elf-symbol name='free_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x607ba3bc'/>
+      <elf-symbol name='free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4302d0eb'/>
+      <elf-symbol name='free_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb44339a'/>
+      <elf-symbol name='free_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9ec4e21'/>
+      <elf-symbol name='free_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc6bec66'/>
+      <elf-symbol name='freezing_slow_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb33fcc8e'/>
+      <elf-symbol name='freq_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28498a88'/>
+      <elf-symbol name='freq_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x894967be'/>
+      <elf-symbol name='freq_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eec24ef'/>
+      <elf-symbol name='freq_reg_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab753be'/>
+      <elf-symbol name='fsync_bdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bde98ff'/>
+      <elf-symbol name='full_name_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6eaaea1'/>
+      <elf-symbol name='fwnode_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7e76d8'/>
+      <elf-symbol name='fwnode_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8334dab'/>
+      <elf-symbol name='fwnode_handle_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78ade86d'/>
+      <elf-symbol name='fwnode_handle_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e67765f'/>
+      <elf-symbol name='fwnode_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dcad26'/>
+      <elf-symbol name='fwnode_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeca16cd'/>
+      <elf-symbol name='fwnode_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8707bda'/>
+      <elf-symbol name='gcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea124bd1'/>
+      <elf-symbol name='gen_pool_add_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbefa51a3'/>
+      <elf-symbol name='gen_pool_alloc_algo_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b593aa8'/>
+      <elf-symbol name='gen_pool_avail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0d3f0a4'/>
+      <elf-symbol name='gen_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced0f4d4'/>
+      <elf-symbol name='gen_pool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c224cda'/>
+      <elf-symbol name='gen_pool_dma_alloc_align' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xada31e57'/>
+      <elf-symbol name='gen_pool_dma_zalloc_align' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d210724'/>
+      <elf-symbol name='gen_pool_first_fit_align' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e855e56'/>
+      <elf-symbol name='gen_pool_free_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60ba97c'/>
+      <elf-symbol name='gen_pool_has_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f557414'/>
+      <elf-symbol name='gen_pool_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2464da17'/>
+      <elf-symbol name='generic_delete_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc234898'/>
+      <elf-symbol name='generic_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bf0c2a8'/>
+      <elf-symbol name='generic_file_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x789dbc9e'/>
+      <elf-symbol name='generic_handle_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ceaf0d5'/>
+      <elf-symbol name='generic_iommu_put_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff00bb3d'/>
+      <elf-symbol name='generic_mii_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc09306'/>
+      <elf-symbol name='genl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76002ad4'/>
+      <elf-symbol name='genl_register_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe838afcf'/>
+      <elf-symbol name='genl_unregister_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b2ad6bd'/>
+      <elf-symbol name='genlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b2cd312'/>
+      <elf-symbol name='get_cpu_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x804c202d'/>
+      <elf-symbol name='get_cpu_idle_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fe899b7'/>
+      <elf-symbol name='get_cpu_idle_time_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b9793a2'/>
+      <elf-symbol name='get_cpu_iowait_time_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1234e483'/>
+      <elf-symbol name='get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5d5a9af'/>
+      <elf-symbol name='get_device_system_crosststamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb541311'/>
+      <elf-symbol name='get_governor_parent_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15390382'/>
+      <elf-symbol name='get_next_ino' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe953b21f'/>
+      <elf-symbol name='get_pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6758b2b6'/>
+      <elf-symbol name='get_random_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79aa04a2'/>
+      <elf-symbol name='get_random_bytes_arch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d830297'/>
+      <elf-symbol name='get_random_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36dc10c'/>
+      <elf-symbol name='get_sg_io_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1de4ccb2'/>
+      <elf-symbol name='get_task_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83e387a7'/>
+      <elf-symbol name='get_thermal_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaab3a2db'/>
+      <elf-symbol name='get_tree_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c84477f'/>
+      <elf-symbol name='get_unused_fd_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa843805a'/>
+      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5a53fc'/>
+      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9ff91e'/>
+      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ab0880a'/>
+      <elf-symbol name='get_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58adb05c'/>
+      <elf-symbol name='get_zeroed_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09b5d9a'/>
+      <elf-symbol name='glob_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5009c71d'/>
+      <elf-symbol name='gnss_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc231a1c0'/>
+      <elf-symbol name='gnss_deregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19e2eae7'/>
+      <elf-symbol name='gnss_insert_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88173920'/>
+      <elf-symbol name='gnss_put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c3f211b'/>
+      <elf-symbol name='gnss_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbac87a71'/>
+      <elf-symbol name='gov_attr_set_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31439123'/>
+      <elf-symbol name='gov_attr_set_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x705fcd9c'/>
+      <elf-symbol name='gov_attr_set_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4722f56'/>
+      <elf-symbol name='gpio_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe990052'/>
+      <elf-symbol name='gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47229b5c'/>
+      <elf-symbol name='gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x403f9529'/>
+      <elf-symbol name='gpio_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b3fd722'/>
+      <elf-symbol name='gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b68ffd2'/>
+      <elf-symbol name='gpiochip_add_pin_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cf3c3a7'/>
+      <elf-symbol name='gpiochip_generic_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa90f0af9'/>
+      <elf-symbol name='gpiochip_generic_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x425fa0d1'/>
+      <elf-symbol name='gpiochip_generic_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545a9d2b'/>
+      <elf-symbol name='gpiochip_get_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a057f3a'/>
+      <elf-symbol name='gpiochip_line_is_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x972ee54a'/>
+      <elf-symbol name='gpiochip_lock_as_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef9c1ad6'/>
+      <elf-symbol name='gpiochip_populate_parent_fwspec_fourcell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2455618'/>
+      <elf-symbol name='gpiochip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9400de1d'/>
+      <elf-symbol name='gpiochip_unlock_as_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x858fa67c'/>
+      <elf-symbol name='gpiod_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82c3aebe'/>
+      <elf-symbol name='gpiod_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160e82aa'/>
+      <elf-symbol name='gpiod_direction_input' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c9ad6ba'/>
+      <elf-symbol name='gpiod_direction_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd472c07'/>
+      <elf-symbol name='gpiod_direction_output_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5247e93'/>
+      <elf-symbol name='gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x636d5da4'/>
+      <elf-symbol name='gpiod_get_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd29e985b'/>
+      <elf-symbol name='gpiod_get_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cfeeeed'/>
+      <elf-symbol name='gpiod_get_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7018dcc5'/>
+      <elf-symbol name='gpiod_get_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c6cd47b'/>
+      <elf-symbol name='gpiod_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd32d5f9b'/>
+      <elf-symbol name='gpiod_set_consumer_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66140ff8'/>
+      <elf-symbol name='gpiod_set_debounce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf20d085d'/>
+      <elf-symbol name='gpiod_set_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd07358c2'/>
+      <elf-symbol name='gpiod_set_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb83b2c7'/>
+      <elf-symbol name='gpiod_set_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4e04371'/>
+      <elf-symbol name='gpiod_set_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca704af8'/>
+      <elf-symbol name='gpiod_to_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf462f41f'/>
+      <elf-symbol name='gserial_alloc_line' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33bfdca2'/>
+      <elf-symbol name='gserial_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61d34436'/>
+      <elf-symbol name='gserial_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x159e7601'/>
+      <elf-symbol name='guid_gen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c3f70e0'/>
+      <elf-symbol name='handle_bad_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b756ff5'/>
+      <elf-symbol name='handle_edge_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x310ad501'/>
+      <elf-symbol name='handle_fasteoi_ack_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82a95891'/>
+      <elf-symbol name='handle_fasteoi_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64f8c2b5'/>
+      <elf-symbol name='handle_level_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66151881'/>
+      <elf-symbol name='handle_nested_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x549525ef'/>
+      <elf-symbol name='handle_simple_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3dea0cb'/>
+      <elf-symbol name='handle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7647726c'/>
+      <elf-symbol name='hashlen_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x162893fd'/>
+      <elf-symbol name='have_governor_per_policy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47aad3b9'/>
+      <elf-symbol name='hci_alloc_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde0e5ec0'/>
+      <elf-symbol name='hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabb29f23'/>
+      <elf-symbol name='hci_free_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e36e568'/>
+      <elf-symbol name='hci_recv_diag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ed3041e'/>
+      <elf-symbol name='hci_recv_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x726da0c0'/>
+      <elf-symbol name='hci_register_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda24315d'/>
+      <elf-symbol name='hci_unregister_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a114790'/>
+      <elf-symbol name='hdmi_audio_infoframe_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb14ab1ef'/>
+      <elf-symbol name='hdmi_audio_infoframe_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29e1e204'/>
+      <elf-symbol name='hdmi_avi_infoframe_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25e58a09'/>
+      <elf-symbol name='hdmi_avi_infoframe_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x809712ff'/>
+      <elf-symbol name='hdmi_infoframe_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609b2853'/>
+      <elf-symbol name='hex2bin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2edbeaf7'/>
+      <elf-symbol name='hex_dump_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe916dc6'/>
+      <elf-symbol name='hex_to_bin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11f7ed4c'/>
+      <elf-symbol name='hid_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefc9820d'/>
+      <elf-symbol name='hid_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1481f995'/>
+      <elf-symbol name='hid_destroy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b092e64'/>
+      <elf-symbol name='hid_input_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe462cf27'/>
+      <elf-symbol name='hid_parse_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd842c83d'/>
+      <elf-symbol name='hrtimer_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecd991f'/>
+      <elf-symbol name='hrtimer_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc69bd8c'/>
+      <elf-symbol name='hrtimer_forward' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76c41756'/>
+      <elf-symbol name='hrtimer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ebd5214'/>
+      <elf-symbol name='hrtimer_init_sleeper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da13bc5'/>
+      <elf-symbol name='hrtimer_sleeper_start_expires' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c91aab6'/>
+      <elf-symbol name='hrtimer_start_range_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x939fc2ef'/>
+      <elf-symbol name='hrtimer_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef93df4b'/>
+      <elf-symbol name='hvc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b10ab'/>
+      <elf-symbol name='hvc_instantiate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x555d7223'/>
+      <elf-symbol name='hvc_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9833bc0c'/>
+      <elf-symbol name='hvc_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7be59fa1'/>
+      <elf-symbol name='hvc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd11a47f4'/>
+      <elf-symbol name='hwrng_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x617b026c'/>
+      <elf-symbol name='hwrng_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd57fbd31'/>
+      <elf-symbol name='hwspin_lock_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d51f541'/>
+      <elf-symbol name='hwspin_lock_request_specific' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ff95950'/>
+      <elf-symbol name='i2c_add_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51eac56c'/>
+      <elf-symbol name='i2c_add_numbered_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd455c9ac'/>
+      <elf-symbol name='i2c_del_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cde3267'/>
+      <elf-symbol name='i2c_del_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x477646e8'/>
+      <elf-symbol name='i2c_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabc612c6'/>
+      <elf-symbol name='i2c_generic_scl_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x492f16b8'/>
+      <elf-symbol name='i2c_get_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd286481'/>
+      <elf-symbol name='i2c_get_device_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a7490ff'/>
+      <elf-symbol name='i2c_get_dma_safe_msg_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42041512'/>
+      <elf-symbol name='i2c_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e7cd404'/>
+      <elf-symbol name='i2c_new_ancillary_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5c10f06'/>
+      <elf-symbol name='i2c_new_client_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e07ffb8'/>
+      <elf-symbol name='i2c_new_dummy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7022fb6'/>
+      <elf-symbol name='i2c_new_scanned_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864d1c35'/>
+      <elf-symbol name='i2c_parse_fw_timings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb133fab8'/>
+      <elf-symbol name='i2c_put_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2751d424'/>
+      <elf-symbol name='i2c_put_dma_safe_msg_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dae16e4'/>
+      <elf-symbol name='i2c_recover_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26140bfe'/>
+      <elf-symbol name='i2c_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd8e929'/>
+      <elf-symbol name='i2c_smbus_read_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae7c2ca2'/>
+      <elf-symbol name='i2c_smbus_read_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x571621a9'/>
+      <elf-symbol name='i2c_smbus_read_word_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b17a68'/>
+      <elf-symbol name='i2c_smbus_write_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b6f3c0f'/>
+      <elf-symbol name='i2c_smbus_write_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6735ef34'/>
+      <elf-symbol name='i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c468bf'/>
+      <elf-symbol name='i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3b3ef49'/>
+      <elf-symbol name='i2c_transfer_buffer_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8831aef'/>
+      <elf-symbol name='i2c_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x826815a4'/>
+      <elf-symbol name='i2c_verify_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3352851'/>
+      <elf-symbol name='i2c_verify_client' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61e88cb7'/>
+      <elf-symbol name='icc_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x989b8394'/>
+      <elf-symbol name='icc_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe823ea7b'/>
+      <elf-symbol name='icc_link_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe787a8f2'/>
+      <elf-symbol name='icc_node_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89c1713d'/>
+      <elf-symbol name='icc_node_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1faab67'/>
+      <elf-symbol name='icc_nodes_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed23c702'/>
+      <elf-symbol name='icc_provider_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6d727eb'/>
+      <elf-symbol name='icc_provider_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8483b4'/>
+      <elf-symbol name='icc_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa64315d8'/>
+      <elf-symbol name='icc_set_bw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c4a0a44'/>
+      <elf-symbol name='icc_set_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefdb3143'/>
+      <elf-symbol name='icc_std_aggregate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46255964'/>
+      <elf-symbol name='icc_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c8c4b3d'/>
+      <elf-symbol name='ida_alloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7a02573'/>
+      <elf-symbol name='ida_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7d5f92e'/>
+      <elf-symbol name='ida_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffb7c514'/>
+      <elf-symbol name='idr_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8f11603'/>
+      <elf-symbol name='idr_alloc_cyclic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91f44510'/>
+      <elf-symbol name='idr_alloc_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12ab31f1'/>
+      <elf-symbol name='idr_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e17b3ae'/>
+      <elf-symbol name='idr_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20978fb9'/>
+      <elf-symbol name='idr_for_each' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d40b6f3'/>
+      <elf-symbol name='idr_get_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc57c48a3'/>
+      <elf-symbol name='idr_preload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x954f099c'/>
+      <elf-symbol name='idr_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7665a95b'/>
+      <elf-symbol name='idr_replace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b82b9a1'/>
+      <elf-symbol name='ieee80211_alloc_hw_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cc02e69'/>
+      <elf-symbol name='ieee80211_ap_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6046854'/>
+      <elf-symbol name='ieee80211_beacon_cntdwn_is_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe13a572f'/>
+      <elf-symbol name='ieee80211_beacon_get_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9f8aeb8'/>
+      <elf-symbol name='ieee80211_beacon_get_tim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f6828bd'/>
+      <elf-symbol name='ieee80211_beacon_loss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae563573'/>
+      <elf-symbol name='ieee80211_beacon_update_cntdwn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a494b09'/>
+      <elf-symbol name='ieee80211_bss_get_elem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7f4a43'/>
+      <elf-symbol name='ieee80211_channel_to_freq_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1b99792'/>
+      <elf-symbol name='ieee80211_chswitch_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b294d2b'/>
+      <elf-symbol name='ieee80211_connection_loss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45e7548a'/>
+      <elf-symbol name='ieee80211_cqm_beacon_loss_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3e7c8c4'/>
+      <elf-symbol name='ieee80211_cqm_rssi_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf22289a'/>
+      <elf-symbol name='ieee80211_csa_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8212dc1c'/>
+      <elf-symbol name='ieee80211_find_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd72f22a'/>
+      <elf-symbol name='ieee80211_find_sta_by_ifaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a75293'/>
+      <elf-symbol name='ieee80211_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d05a3a3'/>
+      <elf-symbol name='ieee80211_free_txskb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fec4a66'/>
+      <elf-symbol name='ieee80211_freq_khz_to_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bedf402'/>
+      <elf-symbol name='ieee80211_get_buffered_bc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1ae4d6c'/>
+      <elf-symbol name='ieee80211_get_channel_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f689184'/>
+      <elf-symbol name='ieee80211_get_hdrlen_from_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6508ce86'/>
+      <elf-symbol name='ieee80211_get_tx_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc35985a'/>
+      <elf-symbol name='ieee80211_hdrlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ef39823'/>
+      <elf-symbol name='ieee80211_iter_chan_contexts_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x516046a6'/>
+      <elf-symbol name='ieee80211_iterate_active_interfaces_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9095a783'/>
+      <elf-symbol name='ieee80211_iterate_interfaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5de6d553'/>
+      <elf-symbol name='ieee80211_iterate_stations_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8681597'/>
+      <elf-symbol name='ieee80211_manage_rx_ba_offl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fe2d654'/>
+      <elf-symbol name='ieee80211_next_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da22342'/>
+      <elf-symbol name='ieee80211_nullfunc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d0389f'/>
+      <elf-symbol name='ieee80211_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf628bbb8'/>
+      <elf-symbol name='ieee80211_proberesp_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa803d3c0'/>
+      <elf-symbol name='ieee80211_pspoll_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf53014e8'/>
+      <elf-symbol name='ieee80211_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71fc25f'/>
+      <elf-symbol name='ieee80211_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3ea845'/>
+      <elf-symbol name='ieee80211_radar_detected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c445434'/>
+      <elf-symbol name='ieee80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85fdef2'/>
+      <elf-symbol name='ieee80211_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x478c48b8'/>
+      <elf-symbol name='ieee80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6d7c344'/>
+      <elf-symbol name='ieee80211_report_low_ack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0112004'/>
+      <elf-symbol name='ieee80211_restart_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6771d44'/>
+      <elf-symbol name='ieee80211_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0222c38'/>
+      <elf-symbol name='ieee80211_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8369f525'/>
+      <elf-symbol name='ieee80211_scan_completed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3abf3a9b'/>
+      <elf-symbol name='ieee80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3ac2caa'/>
+      <elf-symbol name='ieee80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41b0b796'/>
+      <elf-symbol name='ieee80211_sta_ps_transition' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8688a755'/>
+      <elf-symbol name='ieee80211_sta_register_airtime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb73ea975'/>
+      <elf-symbol name='ieee80211_stop_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41f59f2f'/>
+      <elf-symbol name='ieee80211_stop_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95c693a9'/>
+      <elf-symbol name='ieee80211_stop_rx_ba_session' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2460676'/>
+      <elf-symbol name='ieee80211_stop_tx_ba_cb_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf780e33'/>
+      <elf-symbol name='ieee80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf38a065'/>
+      <elf-symbol name='ieee80211_tx_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0798172'/>
+      <elf-symbol name='ieee80211_tx_rate_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26e2a433'/>
+      <elf-symbol name='ieee80211_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4866c846'/>
+      <elf-symbol name='ieee80211_tx_status_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa401f3b5'/>
+      <elf-symbol name='ieee80211_txq_get_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc98e08'/>
+      <elf-symbol name='ieee80211_txq_may_transmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb69d1db8'/>
+      <elf-symbol name='ieee80211_txq_schedule_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12028dee'/>
+      <elf-symbol name='ieee80211_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe94e040f'/>
+      <elf-symbol name='ieee80211_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8953c1a9'/>
+      <elf-symbol name='ieee80211_wake_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27523fcb'/>
+      <elf-symbol name='ieee802154_alloc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a7a2242'/>
+      <elf-symbol name='ieee802154_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd145fd9'/>
+      <elf-symbol name='ieee802154_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1bc20ef'/>
+      <elf-symbol name='ieee802154_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc07c1b'/>
+      <elf-symbol name='ieee802154_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853b997e'/>
+      <elf-symbol name='ieee802154_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6c405fb'/>
+      <elf-symbol name='ieee802154_xmit_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff79f5fb'/>
+      <elf-symbol name='iio_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d5d937'/>
+      <elf-symbol name='import_iovec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91152c75'/>
+      <elf-symbol name='in6_pton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609bcd98'/>
+      <elf-symbol name='in_aton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b6314fd'/>
+      <elf-symbol name='in_egroup_p' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39461d6a'/>
+      <elf-symbol name='inc_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a283be'/>
+      <elf-symbol name='init_dummy_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34b7898e'/>
+      <elf-symbol name='init_pseudo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ce4437'/>
+      <elf-symbol name='init_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x910e6db5'/>
+      <elf-symbol name='init_timer_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79cf5987'/>
+      <elf-symbol name='init_wait_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe487975'/>
+      <elf-symbol name='input_alloc_absinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ccafa54'/>
+      <elf-symbol name='input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c94e4b2'/>
+      <elf-symbol name='input_close_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2ba707'/>
+      <elf-symbol name='input_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e052ff5'/>
+      <elf-symbol name='input_ff_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88089d7a'/>
+      <elf-symbol name='input_free_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeeb34eee'/>
+      <elf-symbol name='input_mt_assign_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99e2d2f0'/>
+      <elf-symbol name='input_mt_destroy_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67b077dc'/>
+      <elf-symbol name='input_mt_drop_unused' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4745149'/>
+      <elf-symbol name='input_mt_init_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c6a71a7'/>
+      <elf-symbol name='input_mt_report_finger_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb18161d'/>
+      <elf-symbol name='input_mt_report_pointer_emulation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c35a9d'/>
+      <elf-symbol name='input_mt_report_slot_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc0c8aca'/>
+      <elf-symbol name='input_mt_sync_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60450a8a'/>
+      <elf-symbol name='input_open_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1c007dc'/>
+      <elf-symbol name='input_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6341e'/>
+      <elf-symbol name='input_register_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7b8c63d'/>
+      <elf-symbol name='input_register_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa09bb137'/>
+      <elf-symbol name='input_set_abs_params' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x445bb35f'/>
+      <elf-symbol name='input_set_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb5e8c68'/>
+      <elf-symbol name='input_set_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fc60c45'/>
+      <elf-symbol name='input_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7758dda2'/>
+      <elf-symbol name='input_unregister_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e4027bc'/>
+      <elf-symbol name='input_unregister_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x550e832b'/>
+      <elf-symbol name='int_sqrt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb678366f'/>
+      <elf-symbol name='int_to_scsilun' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ed90adc'/>
+      <elf-symbol name='invalidate_mapping_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x682b3bb4'/>
+      <elf-symbol name='io_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93a6e0b2'/>
+      <elf-symbol name='io_schedule_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbc4f89e'/>
+      <elf-symbol name='iommu_alloc_resv_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf40724'/>
+      <elf-symbol name='iommu_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5470e50a'/>
+      <elf-symbol name='iommu_attach_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd97f7e44'/>
+      <elf-symbol name='iommu_aux_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41f8c336'/>
+      <elf-symbol name='iommu_aux_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c7eacb5'/>
+      <elf-symbol name='iommu_aux_get_pasid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a2e91b'/>
+      <elf-symbol name='iommu_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x241d53c9'/>
+      <elf-symbol name='iommu_dev_enable_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aeecf9a'/>
+      <elf-symbol name='iommu_dev_feature_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b6d09fa'/>
+      <elf-symbol name='iommu_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27e6e10f'/>
+      <elf-symbol name='iommu_device_sysfs_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8b02b80'/>
+      <elf-symbol name='iommu_device_sysfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd982d013'/>
+      <elf-symbol name='iommu_device_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f89fe7a'/>
+      <elf-symbol name='iommu_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x453a3227'/>
+      <elf-symbol name='iommu_dma_get_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x595624df'/>
+      <elf-symbol name='iommu_domain_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc4e74f0'/>
+      <elf-symbol name='iommu_domain_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf853d0'/>
+      <elf-symbol name='iommu_fwspec_add_ids' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8159e1e'/>
+      <elf-symbol name='iommu_fwspec_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1915a742'/>
+      <elf-symbol name='iommu_get_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4eb92b4'/>
+      <elf-symbol name='iommu_get_domain_for_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7f8606e'/>
+      <elf-symbol name='iommu_group_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d22bb58'/>
+      <elf-symbol name='iommu_group_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c6ad5da'/>
+      <elf-symbol name='iommu_group_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50cd1256'/>
+      <elf-symbol name='iommu_group_get_iommudata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd55ad93b'/>
+      <elf-symbol name='iommu_group_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89485687'/>
+      <elf-symbol name='iommu_group_ref_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d6d0bbc'/>
+      <elf-symbol name='iommu_group_set_iommudata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc66b77b1'/>
+      <elf-symbol name='iommu_group_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcdd5b99'/>
+      <elf-symbol name='iommu_iova_to_phys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75552b8a'/>
+      <elf-symbol name='iommu_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66e4467a'/>
+      <elf-symbol name='iommu_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60ec2016'/>
+      <elf-symbol name='iommu_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6da6f477'/>
+      <elf-symbol name='iommu_put_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3468a195'/>
+      <elf-symbol name='iommu_register_device_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aaace25'/>
+      <elf-symbol name='iommu_report_device_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76af2005'/>
+      <elf-symbol name='iommu_set_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe62dcf09'/>
+      <elf-symbol name='iommu_unmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3d6a593'/>
+      <elf-symbol name='iommu_unregister_device_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9953d7d9'/>
+      <elf-symbol name='iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedc03953'/>
+      <elf-symbol name='iov_iter_bvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7b1b76e'/>
+      <elf-symbol name='iov_iter_kvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a0cb8c1'/>
+      <elf-symbol name='ip_compute_csum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20eadeb6'/>
+      <elf-symbol name='ip_send_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2124474'/>
+      <elf-symbol name='iput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5b52769'/>
+      <elf-symbol name='irq_chip_ack_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13aad8d9'/>
+      <elf-symbol name='irq_chip_disable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91593d43'/>
+      <elf-symbol name='irq_chip_enable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3b55e22'/>
+      <elf-symbol name='irq_chip_eoi_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed407980'/>
+      <elf-symbol name='irq_chip_get_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d253b07'/>
+      <elf-symbol name='irq_chip_mask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7522903'/>
+      <elf-symbol name='irq_chip_retrigger_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf210370f'/>
+      <elf-symbol name='irq_chip_set_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd97588e6'/>
+      <elf-symbol name='irq_chip_set_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10230ac6'/>
+      <elf-symbol name='irq_chip_set_type_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe38ea9d3'/>
+      <elf-symbol name='irq_chip_set_vcpu_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bce6b1a'/>
+      <elf-symbol name='irq_chip_set_wake_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdca0e07f'/>
+      <elf-symbol name='irq_chip_unmask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd109999'/>
+      <elf-symbol name='irq_create_mapping_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x844833fc'/>
+      <elf-symbol name='irq_create_of_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8010f82b'/>
+      <elf-symbol name='irq_dispose_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c7db649'/>
+      <elf-symbol name='irq_domain_alloc_irqs_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b47c8b9'/>
+      <elf-symbol name='irq_domain_create_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x135aa0df'/>
+      <elf-symbol name='irq_domain_free_irqs_common' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd81079aa'/>
+      <elf-symbol name='irq_domain_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fcf3277'/>
+      <elf-symbol name='irq_domain_set_hwirq_and_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23b62735'/>
+      <elf-symbol name='irq_domain_set_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe98f8b9f'/>
+      <elf-symbol name='irq_domain_update_bus_token' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x409cbd95'/>
+      <elf-symbol name='irq_domain_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e5c8ae0'/>
+      <elf-symbol name='irq_domain_xlate_twocell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7146ce34'/>
+      <elf-symbol name='irq_find_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x677dde7c'/>
+      <elf-symbol name='irq_find_matching_fwspec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe704028a'/>
+      <elf-symbol name='irq_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64ed942c'/>
+      <elf-symbol name='irq_modify_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7522f3ba'/>
+      <elf-symbol name='irq_of_parse_and_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4329fc'/>
+      <elf-symbol name='irq_set_affinity_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a7b4b03'/>
+      <elf-symbol name='irq_set_chained_handler_and_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x558a19f0'/>
+      <elf-symbol name='irq_set_chip_and_handler_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee2cde58'/>
+      <elf-symbol name='irq_set_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20a789ac'/>
+      <elf-symbol name='irq_set_irq_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc477a2'/>
+      <elf-symbol name='irq_set_irq_wake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce2840e7'/>
+      <elf-symbol name='irq_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16db8f2f'/>
+      <elf-symbol name='irq_work_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36ebd12'/>
+      <elf-symbol name='irq_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf361a95b'/>
+      <elf-symbol name='is_vmalloc_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc31db0ce'/>
+      <elf-symbol name='jiffies64_to_msecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ec510d'/>
+      <elf-symbol name='jiffies_to_msecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37befc70'/>
+      <elf-symbol name='jiffies_to_usecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f24de73'/>
+      <elf-symbol name='kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb384d37'/>
+      <elf-symbol name='kern_mount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97315e00'/>
+      <elf-symbol name='kern_unmount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2e06d1e'/>
+      <elf-symbol name='kernel_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23706ccb'/>
+      <elf-symbol name='kernel_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc383fbe'/>
+      <elf-symbol name='kernel_getsockname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde95d74c'/>
+      <elf-symbol name='kernel_neon_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fd180e7'/>
+      <elf-symbol name='kernel_neon_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8a8110c'/>
+      <elf-symbol name='kernel_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cfb287c'/>
+      <elf-symbol name='kernel_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e7bbcb3'/>
+      <elf-symbol name='kernel_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8a69daa'/>
+      <elf-symbol name='kernel_sock_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb58a98af'/>
+      <elf-symbol name='kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37a0cba'/>
+      <elf-symbol name='kfree_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf474fdcb'/>
+      <elf-symbol name='kfree_sensitive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0760fc0'/>
+      <elf-symbol name='kfree_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd2429f8'/>
+      <elf-symbol name='kill_anon_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3f2a38a'/>
+      <elf-symbol name='kill_fasync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b81611'/>
+      <elf-symbol name='kill_litter_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94118467'/>
+      <elf-symbol name='kiocb_set_cancel_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x180e4de7'/>
+      <elf-symbol name='kmalloc_order' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbe80fdb'/>
+      <elf-symbol name='kmalloc_order_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8b9f817'/>
+      <elf-symbol name='kmem_cache_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3321775d'/>
+      <elf-symbol name='kmem_cache_alloc_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa1d9dc6'/>
+      <elf-symbol name='kmem_cache_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91dfd8e8'/>
+      <elf-symbol name='kmem_cache_create_usercopy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f130c9c'/>
+      <elf-symbol name='kmem_cache_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa981d2f'/>
+      <elf-symbol name='kmem_cache_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x783b4cf0'/>
+      <elf-symbol name='kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66b4cc41'/>
+      <elf-symbol name='kmemdup_nul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3f548ad'/>
+      <elf-symbol name='kobject_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd711db79'/>
+      <elf-symbol name='kobject_create_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37f653d6'/>
+      <elf-symbol name='kobject_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3f6208'/>
+      <elf-symbol name='kobject_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf90a270b'/>
+      <elf-symbol name='kobject_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a45081'/>
+      <elf-symbol name='kobject_init_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x974e91f8'/>
+      <elf-symbol name='kobject_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce54e2df'/>
+      <elf-symbol name='kobject_uevent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3431a7b'/>
+      <elf-symbol name='kobject_uevent_env' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffa6ca02'/>
+      <elf-symbol name='krealloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1e12d81'/>
+      <elf-symbol name='ksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ea5d10'/>
+      <elf-symbol name='kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d39b0a7'/>
+      <elf-symbol name='kstrdup_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x365e7911'/>
+      <elf-symbol name='kstrdup_quotable_cmdline' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x513cdff4'/>
+      <elf-symbol name='kstrndup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eacf8a5'/>
+      <elf-symbol name='kstrtobool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0875eb1'/>
+      <elf-symbol name='kstrtobool_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda9fc7ae'/>
+      <elf-symbol name='kstrtoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2276db98'/>
+      <elf-symbol name='kstrtoint_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23c9891c'/>
+      <elf-symbol name='kstrtol_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x461ac773'/>
+      <elf-symbol name='kstrtoll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x779a18af'/>
+      <elf-symbol name='kstrtos8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcbdf60f'/>
+      <elf-symbol name='kstrtou16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b0192da'/>
+      <elf-symbol name='kstrtou8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46045dd7'/>
+      <elf-symbol name='kstrtou8_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1179daa'/>
+      <elf-symbol name='kstrtouint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69ad2f20'/>
+      <elf-symbol name='kstrtouint_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcb926cd'/>
+      <elf-symbol name='kstrtoul_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a6af65c'/>
+      <elf-symbol name='kstrtoull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c80c06c'/>
+      <elf-symbol name='kstrtoull_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54245b39'/>
+      <elf-symbol name='kthread_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37623f4'/>
+      <elf-symbol name='kthread_bind_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b479b0e'/>
+      <elf-symbol name='kthread_cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x965f12d2'/>
+      <elf-symbol name='kthread_cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4a37d6c'/>
+      <elf-symbol name='kthread_create_on_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x888f5fad'/>
+      <elf-symbol name='kthread_create_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05f1b8c'/>
+      <elf-symbol name='kthread_delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1b48cc6'/>
+      <elf-symbol name='kthread_destroy_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6581a50f'/>
+      <elf-symbol name='kthread_flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4723eb8'/>
+      <elf-symbol name='kthread_flush_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x807ff61a'/>
+      <elf-symbol name='kthread_mod_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x124b5c1'/>
+      <elf-symbol name='kthread_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37ab61c'/>
+      <elf-symbol name='kthread_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x247f26a9'/>
+      <elf-symbol name='kthread_should_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3f7646e'/>
+      <elf-symbol name='kthread_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf27bd7e7'/>
+      <elf-symbol name='kthread_unuse_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb77984cd'/>
+      <elf-symbol name='kthread_use_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x277d03e1'/>
+      <elf-symbol name='kthread_worker_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x955b0e2e'/>
+      <elf-symbol name='ktime_add_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3952887'/>
+      <elf-symbol name='ktime_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb43f9365'/>
+      <elf-symbol name='ktime_get_mono_fast_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ebe366f'/>
+      <elf-symbol name='ktime_get_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9714e0bb'/>
+      <elf-symbol name='ktime_get_raw_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1edb69d6'/>
+      <elf-symbol name='ktime_get_real_seconds' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x953e1b9e'/>
+      <elf-symbol name='ktime_get_real_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec6ca96'/>
+      <elf-symbol name='ktime_get_snapshot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb27100'/>
+      <elf-symbol name='ktime_get_ts64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e515be6'/>
+      <elf-symbol name='ktime_get_with_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4f0da12'/>
+      <elf-symbol name='kvasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x587b0954'/>
+      <elf-symbol name='kvfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aa1756e'/>
+      <elf-symbol name='kvfree_call_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaf22757'/>
+      <elf-symbol name='kvmalloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x599fb41c'/>
+      <elf-symbol name='led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b946d9d'/>
+      <elf-symbol name='led_classdev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d623c9'/>
+      <elf-symbol name='led_set_brightness_nosleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fd16e9d'/>
+      <elf-symbol name='led_trigger_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7d92614'/>
+      <elf-symbol name='led_trigger_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3279075'/>
+      <elf-symbol name='led_trigger_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe30d40dd'/>
+      <elf-symbol name='list_sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe091c977'/>
+      <elf-symbol name='llist_add_batch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a1840e'/>
+      <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a5efa5'/>
+      <elf-symbol name='log_abnormal_wakeup_reason' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d20fc95'/>
+      <elf-symbol name='log_threaded_irq_wakeup_reason' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34e5628d'/>
+      <elf-symbol name='lzo1x_1_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x787c882b'/>
+      <elf-symbol name='lzo1x_decompress_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4df8fbc'/>
+      <elf-symbol name='lzorle1x_1_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79f697e4'/>
+      <elf-symbol name='mac_pton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x652032cb'/>
+      <elf-symbol name='mbox_chan_received_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97c5e79d'/>
+      <elf-symbol name='mbox_client_txdone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e0f4cf7'/>
+      <elf-symbol name='mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27495465'/>
+      <elf-symbol name='mbox_controller_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaeb6fff4'/>
+      <elf-symbol name='mbox_free_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b128769'/>
+      <elf-symbol name='mbox_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x669f6337'/>
+      <elf-symbol name='mbox_send_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f6b5ac1'/>
+      <elf-symbol name='memchr_inv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df92f66'/>
+      <elf-symbol name='memcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x449ad0a7'/>
+      <elf-symbol name='memcpy' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x4829a47e'/>
+      <elf-symbol name='memdup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9291cd3b'/>
+      <elf-symbol name='memdup_user_nul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d07e365'/>
+      <elf-symbol name='memmove' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x5a9f1d63'/>
+      <elf-symbol name='memparse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27864d57'/>
+      <elf-symbol name='mempool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3762aec'/>
+      <elf-symbol name='mempool_alloc_slab' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc972449f'/>
+      <elf-symbol name='mempool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1953c958'/>
+      <elf-symbol name='mempool_create_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c122bcf'/>
+      <elf-symbol name='mempool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9034a696'/>
+      <elf-symbol name='mempool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa897e3e7'/>
+      <elf-symbol name='mempool_free_slab' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a99a016'/>
+      <elf-symbol name='mempool_kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a037cf1'/>
+      <elf-symbol name='mempool_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd35a6d31'/>
+      <elf-symbol name='memremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d924f20'/>
+      <elf-symbol name='memset' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xdcb764ad'/>
+      <elf-symbol name='memset64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed8a2d95'/>
+      <elf-symbol name='memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e9fdd9d'/>
+      <elf-symbol name='mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b70124'/>
+      <elf-symbol name='mfd_remove_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864a5d7'/>
+      <elf-symbol name='mii_ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20758f8b'/>
+      <elf-symbol name='mii_ethtool_gset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9767205'/>
+      <elf-symbol name='mii_ethtool_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe58c8b'/>
+      <elf-symbol name='mii_nway_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bfa3fe9'/>
+      <elf-symbol name='mipi_dsi_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea215e5a'/>
+      <elf-symbol name='mipi_dsi_compression_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6a832f5'/>
+      <elf-symbol name='mipi_dsi_create_packet' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81ce66fa'/>
+      <elf-symbol name='mipi_dsi_dcs_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e911d93'/>
+      <elf-symbol name='mipi_dsi_dcs_set_column_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5362215c'/>
+      <elf-symbol name='mipi_dsi_dcs_set_display_brightness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfce631dd'/>
+      <elf-symbol name='mipi_dsi_dcs_set_page_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x710bd425'/>
+      <elf-symbol name='mipi_dsi_dcs_write_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe46b0d58'/>
+      <elf-symbol name='mipi_dsi_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd345ae'/>
+      <elf-symbol name='mipi_dsi_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b3afb9e'/>
+      <elf-symbol name='mipi_dsi_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced82005'/>
+      <elf-symbol name='mipi_dsi_driver_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81314f28'/>
+      <elf-symbol name='mipi_dsi_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2686f75'/>
+      <elf-symbol name='mipi_dsi_host_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb983a0a3'/>
+      <elf-symbol name='mipi_dsi_host_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23900e93'/>
+      <elf-symbol name='mipi_dsi_packet_format_is_long' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadbeed61'/>
+      <elf-symbol name='mipi_dsi_picture_parameter_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8cb07a4'/>
+      <elf-symbol name='misc_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeb2a898'/>
+      <elf-symbol name='misc_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1399e020'/>
+      <elf-symbol name='mm_trace_rss_stat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85af20a2'/>
+      <elf-symbol name='mmc_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb395b340'/>
+      <elf-symbol name='mmc_alloc_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d48fef6'/>
+      <elf-symbol name='mmc_app_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe30e03f9'/>
+      <elf-symbol name='mmc_calc_max_discard' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x157af272'/>
+      <elf-symbol name='mmc_can_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x650fa3e'/>
+      <elf-symbol name='mmc_can_gpio_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x307567d7'/>
+      <elf-symbol name='mmc_can_secure_erase_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8be4908a'/>
+      <elf-symbol name='mmc_can_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadd088f6'/>
+      <elf-symbol name='mmc_cmdq_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd09f7fb9'/>
+      <elf-symbol name='mmc_cmdq_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdb67eda'/>
+      <elf-symbol name='mmc_cqe_post_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffd2cfb7'/>
+      <elf-symbol name='mmc_cqe_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f77d40e'/>
+      <elf-symbol name='mmc_cqe_request_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63e44943'/>
+      <elf-symbol name='mmc_cqe_start_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fdc3d25'/>
+      <elf-symbol name='mmc_crypto_prepare_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa25c2251'/>
+      <elf-symbol name='mmc_crypto_setup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed0866eb'/>
+      <elf-symbol name='mmc_detect_card_removed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e7dbd55'/>
+      <elf-symbol name='mmc_detect_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5efbe16b'/>
+      <elf-symbol name='mmc_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa24f2d75'/>
+      <elf-symbol name='mmc_erase_group_aligned' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11196990'/>
+      <elf-symbol name='mmc_flush_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc05fd4b8'/>
+      <elf-symbol name='mmc_free_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbbaacc3'/>
+      <elf-symbol name='mmc_get_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0aa9d75'/>
+      <elf-symbol name='mmc_get_ext_csd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59d16b1b'/>
+      <elf-symbol name='mmc_gpio_get_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37fd102f'/>
+      <elf-symbol name='mmc_gpio_get_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85f28fb7'/>
+      <elf-symbol name='mmc_gpiod_request_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x884382ef'/>
+      <elf-symbol name='mmc_gpiod_request_cd_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cc52a1a'/>
+      <elf-symbol name='mmc_gpiod_request_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x570e418c'/>
+      <elf-symbol name='mmc_hw_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x352dfd83'/>
+      <elf-symbol name='mmc_of_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x848cca88'/>
+      <elf-symbol name='mmc_of_parse_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe87732c4'/>
+      <elf-symbol name='mmc_put_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa83ba31c'/>
+      <elf-symbol name='mmc_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1107525c'/>
+      <elf-symbol name='mmc_regulator_get_supply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fb1d228'/>
+      <elf-symbol name='mmc_regulator_set_ocr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb54b99ec'/>
+      <elf-symbol name='mmc_regulator_set_vqmmc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b432d0'/>
+      <elf-symbol name='mmc_release_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6fae633'/>
+      <elf-symbol name='mmc_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed2b12c4'/>
+      <elf-symbol name='mmc_request_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4d8f35'/>
+      <elf-symbol name='mmc_retune_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa20566f'/>
+      <elf-symbol name='mmc_retune_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2770e7a8'/>
+      <elf-symbol name='mmc_retune_unpause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93b085d'/>
+      <elf-symbol name='mmc_run_bkops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53be0005'/>
+      <elf-symbol name='mmc_sanitize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f506f71'/>
+      <elf-symbol name='mmc_send_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5af2d381'/>
+      <elf-symbol name='mmc_send_tuning' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea74f36b'/>
+      <elf-symbol name='mmc_set_data_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f4ed3d3'/>
+      <elf-symbol name='mmc_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4df83f'/>
+      <elf-symbol name='mmc_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9ad1295'/>
+      <elf-symbol name='mmc_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ca07f2a'/>
+      <elf-symbol name='mmc_wait_for_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95471ced'/>
+      <elf-symbol name='mmc_wait_for_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x993e881b'/>
+      <elf-symbol name='mod_delayed_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4f47221'/>
+      <elf-symbol name='mod_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72cd0f7f'/>
+      <elf-symbol name='module_layout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2bb6019'/>
+      <elf-symbol name='module_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7737921'/>
+      <elf-symbol name='msleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a482f9'/>
+      <elf-symbol name='msleep_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc5005fe'/>
+      <elf-symbol name='mutex_is_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d6dd0aa'/>
+      <elf-symbol name='mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb9065d9'/>
+      <elf-symbol name='mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4124677'/>
+      <elf-symbol name='mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78c7940d'/>
+      <elf-symbol name='mutex_trylock_recursive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ce057b'/>
+      <elf-symbol name='mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8b268ae'/>
+      <elf-symbol name='napi_complete_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20004db4'/>
+      <elf-symbol name='napi_consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x905c3'/>
+      <elf-symbol name='napi_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd963607f'/>
+      <elf-symbol name='napi_gro_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0a9c670'/>
+      <elf-symbol name='napi_gro_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea5961ec'/>
+      <elf-symbol name='napi_schedule_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff8556b4'/>
+      <elf-symbol name='net_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6ebc03b'/>
+      <elf-symbol name='netdev_change_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa32490d'/>
+      <elf-symbol name='netdev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe944aa8d'/>
+      <elf-symbol name='netdev_increment_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69668826'/>
+      <elf-symbol name='netdev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf09cae3'/>
+      <elf-symbol name='netdev_lower_state_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x867a515c'/>
+      <elf-symbol name='netdev_master_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dda9de3'/>
+      <elf-symbol name='netdev_notify_peers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7437a806'/>
+      <elf-symbol name='netdev_pick_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f0702e0'/>
+      <elf-symbol name='netdev_rx_handler_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7715bf'/>
+      <elf-symbol name='netdev_rx_handler_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86bc4f3'/>
+      <elf-symbol name='netdev_state_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb031b098'/>
+      <elf-symbol name='netdev_update_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ff76acb'/>
+      <elf-symbol name='netdev_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x246aab1b'/>
+      <elf-symbol name='netdev_upper_dev_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20164be5'/>
+      <elf-symbol name='netdev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe42dfcb9'/>
+      <elf-symbol name='netif_carrier_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a6f6a50'/>
+      <elf-symbol name='netif_carrier_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x947c337'/>
+      <elf-symbol name='netif_device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b829d9'/>
+      <elf-symbol name='netif_device_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f809972'/>
+      <elf-symbol name='netif_napi_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1561dc2'/>
+      <elf-symbol name='netif_receive_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9ed102b'/>
+      <elf-symbol name='netif_receive_skb_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b8bf149'/>
+      <elf-symbol name='netif_rx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe571ff73'/>
+      <elf-symbol name='netif_rx_ni' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b75de6'/>
+      <elf-symbol name='netif_schedule_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f5f55f6'/>
+      <elf-symbol name='netif_set_real_num_rx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25357473'/>
+      <elf-symbol name='netif_set_real_num_tx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x239edfb8'/>
+      <elf-symbol name='netif_stacked_transfer_operstate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0398408'/>
+      <elf-symbol name='netif_tx_stop_all_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a1e69ed'/>
+      <elf-symbol name='netif_tx_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04ac924'/>
+      <elf-symbol name='netlink_broadcast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87c06272'/>
+      <elf-symbol name='netlink_has_listeners' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d8a6578'/>
+      <elf-symbol name='netlink_kernel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc2bc675'/>
+      <elf-symbol name='netlink_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa599bb2'/>
+      <elf-symbol name='netlink_unicast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aee3f29'/>
+      <elf-symbol name='netlink_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf54a8f7'/>
+      <elf-symbol name='new_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x923010b5'/>
+      <elf-symbol name='nf_conntrack_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a18c74'/>
+      <elf-symbol name='nla_append' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb1703fe'/>
+      <elf-symbol name='nla_memcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1db1704'/>
+      <elf-symbol name='nla_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf65aa3a'/>
+      <elf-symbol name='nla_put_64bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x269a7faf'/>
+      <elf-symbol name='nla_put_nohdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f78276'/>
+      <elf-symbol name='nla_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96c6101e'/>
+      <elf-symbol name='nla_strlcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b640864'/>
+      <elf-symbol name='no_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f47c460'/>
+      <elf-symbol name='no_seek_end_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b02e2a5'/>
+      <elf-symbol name='nonseekable_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52889361'/>
+      <elf-symbol name='noop_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f73e011'/>
+      <elf-symbol name='ns_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3adccc5'/>
+      <elf-symbol name='ns_to_timespec64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e1e140e'/>
+      <elf-symbol name='nsec_to_clock_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0d036a6'/>
+      <elf-symbol name='nsecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffae8e8b'/>
+      <elf-symbol name='nvdimm_bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d0c8d8c'/>
+      <elf-symbol name='nvdimm_bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33e7e17'/>
+      <elf-symbol name='nvdimm_pmem_region_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeba54664'/>
+      <elf-symbol name='nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1175fb6'/>
+      <elf-symbol name='nvmem_cell_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85540ebc'/>
+      <elf-symbol name='nvmem_cell_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99f018c4'/>
+      <elf-symbol name='nvmem_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8349a895'/>
+      <elf-symbol name='nvmem_device_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc697b0f7'/>
+      <elf-symbol name='nvmem_device_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3866e217'/>
+      <elf-symbol name='of_address_to_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd536312'/>
+      <elf-symbol name='of_alias_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf00e00af'/>
+      <elf-symbol name='of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80a3fd6b'/>
+      <elf-symbol name='of_clk_add_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf13b242'/>
+      <elf-symbol name='of_clk_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d47179e'/>
+      <elf-symbol name='of_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a3999db'/>
+      <elf-symbol name='of_clk_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5975c23'/>
+      <elf-symbol name='of_clk_get_parent_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6a79bac'/>
+      <elf-symbol name='of_clk_hw_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69fdcbb6'/>
+      <elf-symbol name='of_clk_hw_simple_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38c08c52'/>
+      <elf-symbol name='of_clk_set_defaults' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65098d8e'/>
+      <elf-symbol name='of_clk_src_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b3445a9'/>
+      <elf-symbol name='of_clk_src_simple_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53782dd5'/>
+      <elf-symbol name='of_count_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1855d504'/>
+      <elf-symbol name='of_cpu_node_to_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0e8975f'/>
+      <elf-symbol name='of_devfreq_cooling_register_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77b89bae'/>
+      <elf-symbol name='of_device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf4111a1'/>
+      <elf-symbol name='of_device_is_available' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c3633f2'/>
+      <elf-symbol name='of_device_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58daa6f1'/>
+      <elf-symbol name='of_device_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a879199'/>
+      <elf-symbol name='of_device_request_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaef16769'/>
+      <elf-symbol name='of_device_uevent_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19838bc7'/>
+      <elf-symbol name='of_dma_configure_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd35d2fc'/>
+      <elf-symbol name='of_dma_controller_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5badf0'/>
+      <elf-symbol name='of_dma_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5cca1ed'/>
+      <elf-symbol name='of_dma_is_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11fb6ada'/>
+      <elf-symbol name='of_drm_find_bridge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42923247'/>
+      <elf-symbol name='of_drm_find_panel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9b73595'/>
+      <elf-symbol name='of_find_backlight_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x901d67d8'/>
+      <elf-symbol name='of_find_compatible_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4828f51'/>
+      <elf-symbol name='of_find_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a52d3dd'/>
+      <elf-symbol name='of_find_i2c_adapter_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cce7694'/>
+      <elf-symbol name='of_find_i2c_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b8cee43'/>
+      <elf-symbol name='of_find_matching_node_and_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc49236c8'/>
+      <elf-symbol name='of_find_mipi_dsi_host_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x940bf934'/>
+      <elf-symbol name='of_find_node_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64df0412'/>
+      <elf-symbol name='of_find_node_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae11483f'/>
+      <elf-symbol name='of_find_node_by_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7b005eb'/>
+      <elf-symbol name='of_find_node_opts_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2839720'/>
+      <elf-symbol name='of_find_node_with_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34ff3625'/>
+      <elf-symbol name='of_find_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a0286d3'/>
+      <elf-symbol name='of_genpd_add_provider_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fe90cd6'/>
+      <elf-symbol name='of_genpd_add_provider_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79779ae2'/>
+      <elf-symbol name='of_genpd_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b87d7e5'/>
+      <elf-symbol name='of_get_child_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e19aede'/>
+      <elf-symbol name='of_get_compatible_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x644b8aea'/>
+      <elf-symbol name='of_get_cpu_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb74cedf'/>
+      <elf-symbol name='of_get_dma_window' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51d1ab53'/>
+      <elf-symbol name='of_get_named_gpio_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28c55bf'/>
+      <elf-symbol name='of_get_next_available_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b9d5f63'/>
+      <elf-symbol name='of_get_next_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ddd45eb'/>
+      <elf-symbol name='of_get_next_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f01a01b'/>
+      <elf-symbol name='of_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6e42094'/>
+      <elf-symbol name='of_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3d97d02'/>
+      <elf-symbol name='of_get_regulator_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9f4cb1f'/>
+      <elf-symbol name='of_graph_get_endpoint_by_regs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77f4c961'/>
+      <elf-symbol name='of_graph_get_next_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a2332b5'/>
+      <elf-symbol name='of_graph_get_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fae05c6'/>
+      <elf-symbol name='of_graph_get_remote_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb79ed0f'/>
+      <elf-symbol name='of_graph_get_remote_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7c7f51f'/>
+      <elf-symbol name='of_graph_get_remote_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38071c2f'/>
+      <elf-symbol name='of_graph_is_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb380ca53'/>
+      <elf-symbol name='of_graph_parse_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c6e9a0c'/>
+      <elf-symbol name='of_hwspin_lock_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x997ec9a'/>
+      <elf-symbol name='of_icc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x910b1caf'/>
+      <elf-symbol name='of_icc_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9896434'/>
+      <elf-symbol name='of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b8082e0'/>
+      <elf-symbol name='of_irq_find_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8307c93'/>
+      <elf-symbol name='of_irq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da6bc94'/>
+      <elf-symbol name='of_irq_get_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x716ceaf5'/>
+      <elf-symbol name='of_irq_parse_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4f9687c'/>
+      <elf-symbol name='of_machine_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd31ccb06'/>
+      <elf-symbol name='of_match_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd87b770'/>
+      <elf-symbol name='of_match_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30521123'/>
+      <elf-symbol name='of_n_addr_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0e8bee0'/>
+      <elf-symbol name='of_n_size_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8691c497'/>
+      <elf-symbol name='of_node_name_eq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4940e06b'/>
+      <elf-symbol name='of_nvmem_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe64b92a4'/>
+      <elf-symbol name='of_parse_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10801119'/>
+      <elf-symbol name='of_parse_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe02264d'/>
+      <elf-symbol name='of_parse_phandle_with_fixed_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff12ff'/>
+      <elf-symbol name='of_phandle_iterator_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe047f24'/>
+      <elf-symbol name='of_phandle_iterator_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98ce8fa7'/>
+      <elf-symbol name='of_phy_simple_xlate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb57ce197'/>
+      <elf-symbol name='of_platform_depopulate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77c8254f'/>
+      <elf-symbol name='of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec1f5899'/>
+      <elf-symbol name='of_prop_next_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77494761'/>
+      <elf-symbol name='of_prop_next_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba578b7'/>
+      <elf-symbol name='of_property_count_elems_of_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda7aeddf'/>
+      <elf-symbol name='of_property_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87dcb80'/>
+      <elf-symbol name='of_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90f4b03d'/>
+      <elf-symbol name='of_property_read_string_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa0583f0'/>
+      <elf-symbol name='of_property_read_u32_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x199ec3de'/>
+      <elf-symbol name='of_property_read_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd4af222'/>
+      <elf-symbol name='of_property_read_u64_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65747ee'/>
+      <elf-symbol name='of_property_read_variable_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7fa5bb2'/>
+      <elf-symbol name='of_property_read_variable_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1736c96'/>
+      <elf-symbol name='of_property_read_variable_u64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb4c0dde'/>
+      <elf-symbol name='of_property_read_variable_u8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a21802'/>
+      <elf-symbol name='of_pwm_xlate_with_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x720a16d3'/>
+      <elf-symbol name='of_reserved_mem_device_init_by_idx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24e58960'/>
+      <elf-symbol name='of_reserved_mem_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x729ea2e8'/>
+      <elf-symbol name='of_reserved_mem_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5eef533'/>
+      <elf-symbol name='of_thermal_get_ntrips' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93d57242'/>
+      <elf-symbol name='of_thermal_get_trip_points' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18a3bfd6'/>
+      <elf-symbol name='of_thermal_is_trip_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a4eb5f1'/>
+      <elf-symbol name='of_translate_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c4763e4'/>
+      <elf-symbol name='of_usb_host_tpl_support' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe58719b1'/>
+      <elf-symbol name='open_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43c7ff08'/>
+      <elf-symbol name='out_of_line_wait_on_bit_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4071b517'/>
+      <elf-symbol name='page_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec728214'/>
+      <elf-symbol name='page_frag_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc306c3a8'/>
+      <elf-symbol name='page_frag_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88e1d0f0'/>
+      <elf-symbol name='page_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63fcac7a'/>
+      <elf-symbol name='panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1e046cc'/>
+      <elf-symbol name='param_get_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4d5952d'/>
+      <elf-symbol name='param_get_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x268120f7'/>
+      <elf-symbol name='param_get_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c43fc4d'/>
+      <elf-symbol name='param_set_copystring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf41de0c6'/>
+      <elf-symbol name='param_set_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48e725b3'/>
+      <elf-symbol name='param_set_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb77a54'/>
+      <elf-symbol name='passthru_features_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5eb04d87'/>
+      <elf-symbol name='pause_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1f3509f'/>
+      <elf-symbol name='pci_alloc_irq_vectors_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd47c9dd6'/>
+      <elf-symbol name='pci_assign_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5d1de0b'/>
+      <elf-symbol name='pci_clear_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a6e7793'/>
+      <elf-symbol name='pci_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f02cd3'/>
+      <elf-symbol name='pci_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb062cb86'/>
+      <elf-symbol name='pci_device_is_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ee3a76'/>
+      <elf-symbol name='pci_disable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fa9c385'/>
+      <elf-symbol name='pci_disable_msi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ace6b4'/>
+      <elf-symbol name='pci_disable_pcie_error_reporting' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9e82a70'/>
+      <elf-symbol name='pci_disable_sriov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd204beaf'/>
+      <elf-symbol name='pci_enable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa447b6b9'/>
+      <elf-symbol name='pci_enable_device_mem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x877fca69'/>
+      <elf-symbol name='pci_enable_msi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1173c233'/>
+      <elf-symbol name='pci_enable_pcie_error_reporting' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabd78458'/>
+      <elf-symbol name='pci_enable_sriov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd354212'/>
+      <elf-symbol name='pci_enable_wake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4223e649'/>
+      <elf-symbol name='pci_find_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9f0cd42'/>
+      <elf-symbol name='pci_find_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdc1bb0f'/>
+      <elf-symbol name='pci_find_ext_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86f0cffa'/>
+      <elf-symbol name='pci_find_next_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2627f8'/>
+      <elf-symbol name='pci_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x554e5b4b'/>
+      <elf-symbol name='pci_free_irq_vectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2a52e06'/>
+      <elf-symbol name='pci_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5413bc1d'/>
+      <elf-symbol name='pci_get_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa07b224'/>
+      <elf-symbol name='pci_intx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x865f2f1a'/>
+      <elf-symbol name='pci_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa54a9c59'/>
+      <elf-symbol name='pci_iomap_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fb65876'/>
+      <elf-symbol name='pci_ioremap_bar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca6e9a9a'/>
+      <elf-symbol name='pci_irq_get_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b5d5915'/>
+      <elf-symbol name='pci_irq_vector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b106342'/>
+      <elf-symbol name='pci_load_and_free_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6f8e089'/>
+      <elf-symbol name='pci_load_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4aa4c6d'/>
+      <elf-symbol name='pci_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9120aba5'/>
+      <elf-symbol name='pci_read_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e1bcb9d'/>
+      <elf-symbol name='pci_read_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39814b73'/>
+      <elf-symbol name='pci_read_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d7bcc72'/>
+      <elf-symbol name='pci_release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb062f1c'/>
+      <elf-symbol name='pci_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75addc14'/>
+      <elf-symbol name='pci_release_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ada645'/>
+      <elf-symbol name='pci_request_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2af02af6'/>
+      <elf-symbol name='pci_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e8a5adf'/>
+      <elf-symbol name='pci_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9216bdf7'/>
+      <elf-symbol name='pci_request_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x140b320c'/>
+      <elf-symbol name='pci_rescan_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c654c85'/>
+      <elf-symbol name='pci_restore_msi_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92cb74b7'/>
+      <elf-symbol name='pci_restore_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73b10da0'/>
+      <elf-symbol name='pci_save_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6198bf0'/>
+      <elf-symbol name='pci_select_bars' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb48f2142'/>
+      <elf-symbol name='pci_set_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef4dc76b'/>
+      <elf-symbol name='pci_set_power_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76a7f9ca'/>
+      <elf-symbol name='pci_sriov_configure_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce743c9'/>
+      <elf-symbol name='pci_store_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1968cd3'/>
+      <elf-symbol name='pci_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbedaa9a9'/>
+      <elf-symbol name='pci_vfs_assigned' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34cd72b3'/>
+      <elf-symbol name='pci_wake_from_d3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44ce128a'/>
+      <elf-symbol name='pci_write_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x797f1912'/>
+      <elf-symbol name='pci_write_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x104b5b10'/>
+      <elf-symbol name='pci_write_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fad1dd9'/>
+      <elf-symbol name='pcibios_resource_to_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32b19c7b'/>
+      <elf-symbol name='pcie_aspm_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x981ee4d9'/>
+      <elf-symbol name='pcie_capability_read_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dea9319'/>
+      <elf-symbol name='pcie_capability_write_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff2f725'/>
+      <elf-symbol name='perf_aux_output_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31a03dc1'/>
+      <elf-symbol name='perf_aux_output_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f38d9e'/>
+      <elf-symbol name='perf_aux_output_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2694940f'/>
+      <elf-symbol name='perf_event_addr_filters_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x129516bc'/>
+      <elf-symbol name='perf_event_create_kernel_counter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa00336e2'/>
+      <elf-symbol name='perf_event_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5941b48a'/>
+      <elf-symbol name='perf_event_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x873c41b4'/>
+      <elf-symbol name='perf_event_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffa5e74f'/>
+      <elf-symbol name='perf_event_read_local' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa912dc0d'/>
+      <elf-symbol name='perf_event_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd925ab5'/>
+      <elf-symbol name='perf_event_release_kernel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f7985b6'/>
+      <elf-symbol name='perf_event_update_userpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1f18c3e'/>
+      <elf-symbol name='perf_get_aux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77eb63b'/>
+      <elf-symbol name='perf_pmu_migrate_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7567ca06'/>
+      <elf-symbol name='perf_pmu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94ce9be'/>
+      <elf-symbol name='perf_pmu_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4780a44'/>
+      <elf-symbol name='perf_trace_buf_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb8a6e1b'/>
+      <elf-symbol name='perf_trace_run_bpf_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61a1474e'/>
+      <elf-symbol name='pfn_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51e77c97'/>
+      <elf-symbol name='phy_calibrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb65c2fd2'/>
+      <elf-symbol name='phy_configure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b53d615'/>
+      <elf-symbol name='phy_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1281ae66'/>
+      <elf-symbol name='phy_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7422b4f4'/>
+      <elf-symbol name='phy_power_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22e9d1f5'/>
+      <elf-symbol name='phy_power_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67665973'/>
+      <elf-symbol name='phy_set_mode_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2176859d'/>
+      <elf-symbol name='pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x181b49d2'/>
+      <elf-symbol name='pin_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f47b30'/>
+      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3e55532'/>
+      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfb2b40a'/>
+      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35db23f0'/>
+      <elf-symbol name='pinconf_generic_dt_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f84483f'/>
+      <elf-symbol name='pinconf_generic_dt_node_to_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ed99bb2'/>
+      <elf-symbol name='pinctrl_add_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93f9fca6'/>
+      <elf-symbol name='pinctrl_dev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf88afe84'/>
+      <elf-symbol name='pinctrl_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24b6d5e8'/>
+      <elf-symbol name='pinctrl_force_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf0189a2'/>
+      <elf-symbol name='pinctrl_force_sleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc473686'/>
+      <elf-symbol name='pinctrl_lookup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x325642d7'/>
+      <elf-symbol name='pinctrl_pm_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42a7ff7e'/>
+      <elf-symbol name='pinctrl_pm_select_idle_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d20c84'/>
+      <elf-symbol name='pinctrl_pm_select_sleep_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa330acf2'/>
+      <elf-symbol name='pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce061463'/>
+      <elf-symbol name='pinctrl_remove_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a5a18d0'/>
+      <elf-symbol name='pinctrl_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35ce98f7'/>
+      <elf-symbol name='pinctrl_select_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb038e05b'/>
+      <elf-symbol name='pinctrl_utils_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e79fadb'/>
+      <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1cf7fcf'/>
+      <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf4d722d'/>
+      <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0113e4f'/>
+      <elf-symbol name='platform_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1f2d2e8'/>
+      <elf-symbol name='platform_device_add_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb05eda59'/>
+      <elf-symbol name='platform_device_add_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5988706b'/>
+      <elf-symbol name='platform_device_add_resources' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bc0af14'/>
+      <elf-symbol name='platform_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59661a9a'/>
+      <elf-symbol name='platform_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54cf6797'/>
+      <elf-symbol name='platform_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aa01b1c'/>
+      <elf-symbol name='platform_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7995196'/>
+      <elf-symbol name='platform_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60d9945d'/>
+      <elf-symbol name='platform_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b57e2af'/>
+      <elf-symbol name='platform_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa68d9972'/>
+      <elf-symbol name='platform_find_device_by_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a38a7e'/>
+      <elf-symbol name='platform_get_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc53f9942'/>
+      <elf-symbol name='platform_get_irq_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x396372e2'/>
+      <elf-symbol name='platform_get_irq_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b573a21'/>
+      <elf-symbol name='platform_get_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f311667'/>
+      <elf-symbol name='platform_get_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d30b61a'/>
+      <elf-symbol name='platform_irq_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc2025d0'/>
+      <elf-symbol name='pm_generic_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe666edc1'/>
+      <elf-symbol name='pm_generic_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a1fcfa7'/>
+      <elf-symbol name='pm_genpd_add_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8491508e'/>
+      <elf-symbol name='pm_genpd_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5f5914c'/>
+      <elf-symbol name='pm_genpd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1050965f'/>
+      <elf-symbol name='pm_genpd_remove_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f17ac82'/>
+      <elf-symbol name='pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c90d977'/>
+      <elf-symbol name='pm_runtime_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9572674c'/>
+      <elf-symbol name='pm_runtime_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec734387'/>
+      <elf-symbol name='pm_runtime_forbid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x191f59'/>
+      <elf-symbol name='pm_runtime_force_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62c37db5'/>
+      <elf-symbol name='pm_runtime_force_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69bbf0ea'/>
+      <elf-symbol name='pm_runtime_get_if_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78ad1eea'/>
+      <elf-symbol name='pm_runtime_irq_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83b44ab9'/>
+      <elf-symbol name='pm_runtime_set_autosuspend_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1066b1b'/>
+      <elf-symbol name='pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1595eb5'/>
+      <elf-symbol name='pm_system_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c0215f2'/>
+      <elf-symbol name='pm_wakeup_dev_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff1bbf5'/>
+      <elf-symbol name='pm_wakeup_ws_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5615cf19'/>
+      <elf-symbol name='policy_has_boost_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8e4961e'/>
+      <elf-symbol name='power_supply_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a76c3ea'/>
+      <elf-symbol name='power_supply_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40503578'/>
+      <elf-symbol name='power_supply_get_by_phandle_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd7ead3d'/>
+      <elf-symbol name='power_supply_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dc8146b'/>
+      <elf-symbol name='power_supply_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60943367'/>
+      <elf-symbol name='power_supply_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc24bdd09'/>
+      <elf-symbol name='power_supply_reg_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x136209db'/>
+      <elf-symbol name='power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1de4c26'/>
+      <elf-symbol name='power_supply_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f0e79f9'/>
+      <elf-symbol name='power_supply_unreg_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b81c38b'/>
+      <elf-symbol name='power_supply_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdde4d597'/>
+      <elf-symbol name='prandom_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa99b39c2'/>
+      <elf-symbol name='prandom_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda9581f'/>
+      <elf-symbol name='preempt_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43b0c9c3'/>
+      <elf-symbol name='preempt_schedule_notrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf70e4a4d'/>
+      <elf-symbol name='prepare_to_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5fd90f1'/>
+      <elf-symbol name='prepare_to_wait_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c26d495'/>
+      <elf-symbol name='print_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x167c5967'/>
+      <elf-symbol name='printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5850110'/>
+      <elf-symbol name='printk_deferred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd98307f5'/>
+      <elf-symbol name='proc_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f8e3745'/>
+      <elf-symbol name='proc_create_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72658149'/>
+      <elf-symbol name='proc_create_single_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x490d94c1'/>
+      <elf-symbol name='proc_dointvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8181adf'/>
+      <elf-symbol name='proc_dostring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x319d493d'/>
+      <elf-symbol name='proc_douintvec_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x638aff11'/>
+      <elf-symbol name='proc_mkdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba6ef37'/>
+      <elf-symbol name='proc_mkdir_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadbfc412'/>
+      <elf-symbol name='proc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeffe481b'/>
+      <elf-symbol name='proc_set_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d54f8f7'/>
+      <elf-symbol name='proto_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45fc1eb4'/>
+      <elf-symbol name='proto_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3febb60e'/>
+      <elf-symbol name='ps2_begin_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e280db6'/>
+      <elf-symbol name='ps2_cmd_aborted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2480b9d'/>
+      <elf-symbol name='ps2_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8101ce02'/>
+      <elf-symbol name='ps2_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4feaf56f'/>
+      <elf-symbol name='ps2_end_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7046db07'/>
+      <elf-symbol name='ps2_handle_ack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c719b3a'/>
+      <elf-symbol name='ps2_handle_response' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf90e3661'/>
+      <elf-symbol name='ps2_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237eb0b0'/>
+      <elf-symbol name='ps2_sendbyte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ddc0e52'/>
+      <elf-symbol name='ps2_sliced_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a21696f'/>
+      <elf-symbol name='pskb_expand_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73f8c5b9'/>
+      <elf-symbol name='put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67cc7b3'/>
+      <elf-symbol name='put_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x338f5828'/>
+      <elf-symbol name='put_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x347bc154'/>
+      <elf-symbol name='put_sg_io_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec4aee6'/>
+      <elf-symbol name='put_unused_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f4547a7'/>
+      <elf-symbol name='put_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b700d37'/>
+      <elf-symbol name='pwm_apply_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4222c0f'/>
+      <elf-symbol name='pwm_get_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x231c3875'/>
+      <elf-symbol name='pwm_set_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa52f9bb9'/>
+      <elf-symbol name='pwmchip_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf12952d3'/>
+      <elf-symbol name='pwmchip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40937172'/>
+      <elf-symbol name='qcom_smem_state_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x976ee98d'/>
+      <elf-symbol name='qcom_smem_state_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23f4250e'/>
+      <elf-symbol name='qcom_smem_state_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4561f990'/>
+      <elf-symbol name='qcom_smem_state_update_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf730fb4a'/>
+      <elf-symbol name='queue_delayed_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf57e89e'/>
+      <elf-symbol name='queue_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x732ac580'/>
+      <elf-symbol name='radix_tree_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e6e4b41'/>
+      <elf-symbol name='radix_tree_delete_item' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2237016'/>
+      <elf-symbol name='radix_tree_gang_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b27729b'/>
+      <elf-symbol name='radix_tree_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fbc6a00'/>
+      <elf-symbol name='radix_tree_iter_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dc35b25'/>
+      <elf-symbol name='radix_tree_iter_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb55c076'/>
+      <elf-symbol name='radix_tree_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70ad75fb'/>
+      <elf-symbol name='radix_tree_next_chunk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c541e7b'/>
+      <elf-symbol name='radix_tree_preload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32ce3777'/>
+      <elf-symbol name='rational_best_approximation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0a0da0c'/>
+      <elf-symbol name='raw_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa851973a'/>
+      <elf-symbol name='raw_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc9fa232'/>
+      <elf-symbol name='rb_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d9b652b'/>
+      <elf-symbol name='rb_first' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xece784c2'/>
+      <elf-symbol name='rb_insert_color' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5526619'/>
+      <elf-symbol name='rb_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9360b5'/>
+      <elf-symbol name='rb_prev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf82ec573'/>
+      <elf-symbol name='rb_replace_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fe32873'/>
+      <elf-symbol name='rdev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c1c2b4a'/>
+      <elf-symbol name='rdev_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dc2c1e1'/>
+      <elf-symbol name='refcount_dec_and_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55eb4a7f'/>
+      <elf-symbol name='refcount_dec_not_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe441e95a'/>
+      <elf-symbol name='refcount_warn_saturate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x296695f'/>
+      <elf-symbol name='reg_initiator_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdba126c1'/>
+      <elf-symbol name='regcache_cache_bypass' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4bbb493'/>
+      <elf-symbol name='regcache_cache_only' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x367f1a38'/>
+      <elf-symbol name='regcache_drop_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x799750ce'/>
+      <elf-symbol name='regcache_mark_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8583d27'/>
+      <elf-symbol name='regcache_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe131dfb5'/>
+      <elf-symbol name='register_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a50dbc'/>
+      <elf-symbol name='register_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb94ed27a'/>
+      <elf-symbol name='register_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd78f3b'/>
+      <elf-symbol name='register_console' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35087890'/>
+      <elf-symbol name='register_die_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6261484'/>
+      <elf-symbol name='register_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb31ee7e3'/>
+      <elf-symbol name='register_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60352082'/>
+      <elf-symbol name='register_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf68285c0'/>
+      <elf-symbol name='register_kernel_break_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf42b9584'/>
+      <elf-symbol name='register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a0ffec4'/>
+      <elf-symbol name='register_netdevice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6e74fa1'/>
+      <elf-symbol name='register_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2da1048'/>
+      <elf-symbol name='register_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4761f17c'/>
+      <elf-symbol name='register_oom_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x622c7922'/>
+      <elf-symbol name='register_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4428aa54'/>
+      <elf-symbol name='register_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd38f80e8'/>
+      <elf-symbol name='register_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cc4f70a'/>
+      <elf-symbol name='register_reboot_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3517383e'/>
+      <elf-symbol name='register_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d8fd16'/>
+      <elf-symbol name='register_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafa2e419'/>
+      <elf-symbol name='register_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9c425de'/>
+      <elf-symbol name='register_sysctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cd91791'/>
+      <elf-symbol name='register_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a449c4f'/>
+      <elf-symbol name='register_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16faab28'/>
+      <elf-symbol name='register_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23e1647b'/>
+      <elf-symbol name='register_vmap_purge_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26ed2186'/>
+      <elf-symbol name='regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51bf0b28'/>
+      <elf-symbol name='regmap_async_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27dd59c0'/>
+      <elf-symbol name='regmap_bulk_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62fec4a2'/>
+      <elf-symbol name='regmap_bulk_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8d9f033'/>
+      <elf-symbol name='regmap_del_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x131a5ed7'/>
+      <elf-symbol name='regmap_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67d96a1f'/>
+      <elf-symbol name='regmap_field_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2fd3675'/>
+      <elf-symbol name='regmap_field_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29712087'/>
+      <elf-symbol name='regmap_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7e3967a'/>
+      <elf-symbol name='regmap_irq_get_domain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb78649e9'/>
+      <elf-symbol name='regmap_irq_get_virq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55784228'/>
+      <elf-symbol name='regmap_multi_reg_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x827a48'/>
+      <elf-symbol name='regmap_multi_reg_write_bypassed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15c212e5'/>
+      <elf-symbol name='regmap_raw_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fd4491a'/>
+      <elf-symbol name='regmap_raw_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x706f4e15'/>
+      <elf-symbol name='regmap_raw_write_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x549c7dea'/>
+      <elf-symbol name='regmap_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x612d1b68'/>
+      <elf-symbol name='regmap_register_patch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf432809'/>
+      <elf-symbol name='regmap_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16250fb6'/>
+      <elf-symbol name='regmap_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14735a1'/>
+      <elf-symbol name='regulator_bulk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee11a6ea'/>
+      <elf-symbol name='regulator_bulk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfef7e3b'/>
+      <elf-symbol name='regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x983a0339'/>
+      <elf-symbol name='regulator_count_voltages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9e88fe'/>
+      <elf-symbol name='regulator_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92b70dc2'/>
+      <elf-symbol name='regulator_disable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d57ba9e'/>
+      <elf-symbol name='regulator_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c87bc0'/>
+      <elf-symbol name='regulator_enable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x388b5139'/>
+      <elf-symbol name='regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4544168d'/>
+      <elf-symbol name='regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc144e'/>
+      <elf-symbol name='regulator_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x687b0006'/>
+      <elf-symbol name='regulator_get_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc26a6a7d'/>
+      <elf-symbol name='regulator_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e4d2dd2'/>
+      <elf-symbol name='regulator_is_enabled_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x698ee7bb'/>
+      <elf-symbol name='regulator_is_supported_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef22825'/>
+      <elf-symbol name='regulator_list_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2ef84da'/>
+      <elf-symbol name='regulator_list_voltage_linear_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacc6496b'/>
+      <elf-symbol name='regulator_list_voltage_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65f0ce73'/>
+      <elf-symbol name='regulator_map_voltage_ascend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4925b63'/>
+      <elf-symbol name='regulator_map_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x289dcdbb'/>
+      <elf-symbol name='regulator_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc670790'/>
+      <elf-symbol name='regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4ac234a'/>
+      <elf-symbol name='regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51d42ff'/>
+      <elf-symbol name='regulator_set_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x762bc20e'/>
+      <elf-symbol name='regulator_set_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a20112c'/>
+      <elf-symbol name='regulator_set_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f883c2a'/>
+      <elf-symbol name='regulator_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2146908'/>
+      <elf-symbol name='regulatory_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfef0ebd'/>
+      <elf-symbol name='regulatory_set_wiphy_regd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc41efa44'/>
+      <elf-symbol name='regulatory_set_wiphy_regd_sync_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31336bc9'/>
+      <elf-symbol name='release_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6d09aa9'/>
+      <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28ce116a'/>
+      <elf-symbol name='remap_pfn_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef15865'/>
+      <elf-symbol name='remap_vmalloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97b9765e'/>
+      <elf-symbol name='remove_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad4e6259'/>
+      <elf-symbol name='remove_proc_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2671b596'/>
+      <elf-symbol name='remove_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37110088'/>
+      <elf-symbol name='request_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc58acd7d'/>
+      <elf-symbol name='request_firmware_direct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f6a3253'/>
+      <elf-symbol name='request_firmware_into_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe80bfdcb'/>
+      <elf-symbol name='request_firmware_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb471dba6'/>
+      <elf-symbol name='request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2072ee9b'/>
+      <elf-symbol name='reset_control_assert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c4b6684'/>
+      <elf-symbol name='reset_control_deassert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2210d64'/>
+      <elf-symbol name='reset_control_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24f39c39'/>
+      <elf-symbol name='resume_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b491092'/>
+      <elf-symbol name='return_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb917b6d7'/>
+      <elf-symbol name='revalidate_disk_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f0430ae'/>
+      <elf-symbol name='rfkill_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1240d8c'/>
+      <elf-symbol name='rfkill_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb68bbad'/>
+      <elf-symbol name='rfkill_find_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b73ce2'/>
+      <elf-symbol name='rfkill_init_sw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad6d92f'/>
+      <elf-symbol name='rfkill_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25277497'/>
+      <elf-symbol name='rfkill_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83eb21c'/>
+      <elf-symbol name='rhashtable_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5363bc'/>
+      <elf-symbol name='rhashtable_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e449fb4'/>
+      <elf-symbol name='rhashtable_insert_slow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe086059f'/>
+      <elf-symbol name='rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f990e9'/>
+      <elf-symbol name='rht_bucket_nested_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9920ae2a'/>
+      <elf-symbol name='root_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d9bb712'/>
+      <elf-symbol name='round_jiffies_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50fad434'/>
+      <elf-symbol name='rpmsg_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x879a24ae'/>
+      <elf-symbol name='rpmsg_send' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b04d9fb'/>
+      <elf-symbol name='rpmsg_trysend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a81e62'/>
+      <elf-symbol name='rpmsg_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba5d396'/>
+      <elf-symbol name='rproc_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91dd4dea'/>
+      <elf-symbol name='rproc_add_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba86108'/>
+      <elf-symbol name='rproc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x111f8d16'/>
+      <elf-symbol name='rproc_coredump_add_custom_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4e2f7d6'/>
+      <elf-symbol name='rproc_coredump_add_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68b1f9fb'/>
+      <elf-symbol name='rproc_coredump_set_elf_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bdb8b0f'/>
+      <elf-symbol name='rproc_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ab6fd6a'/>
+      <elf-symbol name='rproc_elf_get_boot_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a921573'/>
+      <elf-symbol name='rproc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9ca1558'/>
+      <elf-symbol name='rproc_get_by_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaba85de7'/>
+      <elf-symbol name='rproc_remove_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd23d58c7'/>
+      <elf-symbol name='rproc_report_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc80391f'/>
+      <elf-symbol name='rt_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa9e08a'/>
+      <elf-symbol name='rt_mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdce6bd63'/>
+      <elf-symbol name='rt_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb81ff86'/>
+      <elf-symbol name='rtc_class_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb417ea2b'/>
+      <elf-symbol name='rtc_class_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x166f11a4'/>
+      <elf-symbol name='rtc_read_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ae70239'/>
+      <elf-symbol name='rtc_time64_to_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x356461c8'/>
+      <elf-symbol name='rtc_tm_to_time64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f2250ba'/>
+      <elf-symbol name='rtc_update_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24e516a'/>
+      <elf-symbol name='rtc_valid_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5838f6c9'/>
+      <elf-symbol name='rtc_year_days' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4859b8bb'/>
+      <elf-symbol name='rtnl_is_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85670f1d'/>
+      <elf-symbol name='rtnl_link_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba8b1c0'/>
+      <elf-symbol name='rtnl_link_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e908bf4'/>
+      <elf-symbol name='rtnl_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a4fbed'/>
+      <elf-symbol name='rtnl_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4f14de6'/>
+      <elf-symbol name='rtnl_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e720ff2'/>
+      <elf-symbol name='sb800_prefetch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12854cde'/>
+      <elf-symbol name='scatterwalk_ffwd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bbdfa26'/>
+      <elf-symbol name='scatterwalk_map_and_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x845dbf3b'/>
+      <elf-symbol name='sched_clock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd653b126'/>
+      <elf-symbol name='sched_set_fifo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd9b564b'/>
+      <elf-symbol name='sched_setattr_nocheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6afd9a1'/>
+      <elf-symbol name='sched_setscheduler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160ec420'/>
+      <elf-symbol name='sched_setscheduler_nocheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e4bc218'/>
+      <elf-symbol name='sched_show_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x697e1b51'/>
+      <elf-symbol name='sched_trace_cfs_rq_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdad92c62'/>
+      <elf-symbol name='sched_trace_cfs_rq_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53b1c832'/>
+      <elf-symbol name='sched_trace_cfs_rq_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4df6969'/>
+      <elf-symbol name='sched_trace_rd_span' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63069a86'/>
+      <elf-symbol name='sched_trace_rq_avg_dl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1512c871'/>
+      <elf-symbol name='sched_trace_rq_avg_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb3b8af0'/>
+      <elf-symbol name='sched_trace_rq_avg_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c660f8e'/>
+      <elf-symbol name='sched_trace_rq_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b84739'/>
+      <elf-symbol name='schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1000e51'/>
+      <elf-symbol name='schedule_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ddd8aad'/>
+      <elf-symbol name='schedule_timeout_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54496b4'/>
+      <elf-symbol name='schedule_timeout_uninterruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x151f4898'/>
+      <elf-symbol name='scnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96848186'/>
+      <elf-symbol name='scsi_add_host_with_dma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff5b051'/>
+      <elf-symbol name='scsi_autopm_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76ced0b8'/>
+      <elf-symbol name='scsi_autopm_put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80e08eb7'/>
+      <elf-symbol name='scsi_block_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x344d6e40'/>
+      <elf-symbol name='scsi_block_when_processing_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3129017b'/>
+      <elf-symbol name='scsi_build_sense_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8112b3d2'/>
+      <elf-symbol name='scsi_change_queue_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb373fbf2'/>
+      <elf-symbol name='scsi_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6906124c'/>
+      <elf-symbol name='scsi_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6153c78b'/>
+      <elf-symbol name='scsi_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe392435'/>
+      <elf-symbol name='scsi_host_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffd2bd49'/>
+      <elf-symbol name='scsi_host_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x809c4837'/>
+      <elf-symbol name='scsi_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb67b442'/>
+      <elf-symbol name='scsi_ioctl_block_when_processing_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2b78d5a'/>
+      <elf-symbol name='scsi_normalize_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbad3cf0'/>
+      <elf-symbol name='scsi_register_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ef961a'/>
+      <elf-symbol name='scsi_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bb0db3c'/>
+      <elf-symbol name='scsi_scan_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51ae11bc'/>
+      <elf-symbol name='scsi_set_sense_information' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818416e1'/>
+      <elf-symbol name='scsi_unblock_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f93021'/>
+      <elf-symbol name='sdev_prefix_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21efb8fa'/>
+      <elf-symbol name='sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f226ba'/>
+      <elf-symbol name='sdhci_cleanup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf86c2f3'/>
+      <elf-symbol name='sdhci_cqe_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf18e5b9e'/>
+      <elf-symbol name='sdhci_cqe_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5ad7c4f'/>
+      <elf-symbol name='sdhci_cqe_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ececbb'/>
+      <elf-symbol name='sdhci_enable_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2208baa7'/>
+      <elf-symbol name='sdhci_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84e8190c'/>
+      <elf-symbol name='sdhci_pltfm_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade956dc'/>
+      <elf-symbol name='sdhci_pltfm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1780fad9'/>
+      <elf-symbol name='sdhci_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d61ff9'/>
+      <elf-symbol name='sdhci_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fc697b3'/>
+      <elf-symbol name='sdhci_set_bus_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87cb0ecc'/>
+      <elf-symbol name='sdhci_set_power_noreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5abbc73'/>
+      <elf-symbol name='sdhci_setup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe52510e3'/>
+      <elf-symbol name='sdio_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169a2b7d'/>
+      <elf-symbol name='sdio_disable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb242c14c'/>
+      <elf-symbol name='sdio_enable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac1d714c'/>
+      <elf-symbol name='sdio_f0_readb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x506381a'/>
+      <elf-symbol name='sdio_f0_writeb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93276bef'/>
+      <elf-symbol name='sdio_get_host_pm_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaa23a69'/>
+      <elf-symbol name='sdio_memcpy_fromio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee2f08d4'/>
+      <elf-symbol name='sdio_memcpy_toio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53d7959'/>
+      <elf-symbol name='sdio_readsb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcadcbdd4'/>
+      <elf-symbol name='sdio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f0af19'/>
+      <elf-symbol name='sdio_release_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3219f69'/>
+      <elf-symbol name='sdio_set_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90529800'/>
+      <elf-symbol name='sdio_set_host_pm_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaf1109d'/>
+      <elf-symbol name='sdio_signal_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab92b8e7'/>
+      <elf-symbol name='sdio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x209c631f'/>
+      <elf-symbol name='sdio_writesb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3d81a78'/>
+      <elf-symbol name='securityfs_create_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d63716b'/>
+      <elf-symbol name='securityfs_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc692eb2e'/>
+      <elf-symbol name='securityfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f4b809e'/>
+      <elf-symbol name='send_sig_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3db1f6cc'/>
+      <elf-symbol name='seq_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefb9b198'/>
+      <elf-symbol name='seq_lseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f2a5d37'/>
+      <elf-symbol name='seq_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce3c365e'/>
+      <elf-symbol name='seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65452d63'/>
+      <elf-symbol name='seq_putc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4a810de'/>
+      <elf-symbol name='seq_puts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff4acde6'/>
+      <elf-symbol name='seq_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac7f70b'/>
+      <elf-symbol name='seq_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb1f96a6'/>
+      <elf-symbol name='seq_release_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30af181'/>
+      <elf-symbol name='seq_vprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47353f1f'/>
+      <elf-symbol name='seq_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7654114'/>
+      <elf-symbol name='serdev_device_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87ae9c94'/>
+      <elf-symbol name='serdev_device_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5401725'/>
+      <elf-symbol name='serdev_device_set_baudrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e514527'/>
+      <elf-symbol name='serdev_device_set_flow_control' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b4c958e'/>
+      <elf-symbol name='serdev_device_wait_until_sent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1dce889f'/>
+      <elf-symbol name='serdev_device_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe84b065'/>
+      <elf-symbol name='serdev_device_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e85d4cb'/>
+      <elf-symbol name='serio_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f268e5a'/>
+      <elf-symbol name='serio_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51164765'/>
+      <elf-symbol name='serio_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x432e9a5e'/>
+      <elf-symbol name='serio_reconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabd991cf'/>
+      <elf-symbol name='serio_rescan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95adb2a3'/>
+      <elf-symbol name='serio_unregister_child_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f02f5a4'/>
+      <elf-symbol name='serio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5656f1f'/>
+      <elf-symbol name='serio_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e10e333'/>
+      <elf-symbol name='set_blocksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf36ebc15'/>
+      <elf-symbol name='set_capacity_revalidate_and_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80db02d9'/>
+      <elf-symbol name='set_cpus_allowed_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd249f425'/>
+      <elf-symbol name='set_disk_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97b5963c'/>
+      <elf-symbol name='set_freezable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e61bb05'/>
+      <elf-symbol name='set_normalized_timespec64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x365acda7'/>
+      <elf-symbol name='set_page_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec62b37'/>
+      <elf-symbol name='set_page_dirty_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4cf0bf9'/>
+      <elf-symbol name='set_user_nice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eac6550'/>
+      <elf-symbol name='sg_alloc_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a2f6702'/>
+      <elf-symbol name='sg_alloc_table_from_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc8a6e50'/>
+      <elf-symbol name='sg_copy_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac743de'/>
+      <elf-symbol name='sg_copy_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x905695ab'/>
+      <elf-symbol name='sg_copy_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b8ab42'/>
+      <elf-symbol name='sg_free_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f5b4fe4'/>
+      <elf-symbol name='sg_init_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb320cc0e'/>
+      <elf-symbol name='sg_init_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf888ca21'/>
+      <elf-symbol name='sg_miter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc43a0ddf'/>
+      <elf-symbol name='sg_miter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42176b19'/>
+      <elf-symbol name='sg_miter_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45ae84c7'/>
+      <elf-symbol name='sg_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b8798d'/>
+      <elf-symbol name='sg_pcopy_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0fe8d51'/>
+      <elf-symbol name='sg_scsi_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69116b94'/>
+      <elf-symbol name='shash_free_singlespawn_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6871320a'/>
+      <elf-symbol name='shash_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x504e31ec'/>
+      <elf-symbol name='shmem_file_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65e23d80'/>
+      <elf-symbol name='shmem_truncate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x796d5f8f'/>
+      <elf-symbol name='simple_attr_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e5aa3d0'/>
+      <elf-symbol name='simple_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd753dab3'/>
+      <elf-symbol name='simple_attr_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b768a68'/>
+      <elf-symbol name='simple_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb68c0e7d'/>
+      <elf-symbol name='simple_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1ab47f5'/>
+      <elf-symbol name='simple_read_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x619cb7dd'/>
+      <elf-symbol name='simple_statfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb16e9d1f'/>
+      <elf-symbol name='simple_strtol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb742fd7'/>
+      <elf-symbol name='simple_strtoll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7e56a4e'/>
+      <elf-symbol name='simple_strtoul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20000329'/>
+      <elf-symbol name='simple_strtoull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61b7b126'/>
+      <elf-symbol name='simple_write_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb4f4766'/>
+      <elf-symbol name='single_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eae4d4a'/>
+      <elf-symbol name='single_open_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9bfad79'/>
+      <elf-symbol name='single_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4289b376'/>
+      <elf-symbol name='sk_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9f1807d'/>
+      <elf-symbol name='sk_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1168a58f'/>
+      <elf-symbol name='skb_add_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3488c6fc'/>
+      <elf-symbol name='skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x313b34c6'/>
+      <elf-symbol name='skb_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5e564a'/>
+      <elf-symbol name='skb_coalesce_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85fb05e6'/>
+      <elf-symbol name='skb_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x654d2d21'/>
+      <elf-symbol name='skb_copy_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64dac6cd'/>
+      <elf-symbol name='skb_copy_datagram_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55e5be4a'/>
+      <elf-symbol name='skb_copy_expand' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc61ab3f'/>
+      <elf-symbol name='skb_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee77b576'/>
+      <elf-symbol name='skb_dequeue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb6e6e79'/>
+      <elf-symbol name='skb_free_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c362f68'/>
+      <elf-symbol name='skb_page_frag_refill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d1bb9b0'/>
+      <elf-symbol name='skb_partial_csum_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacd56497'/>
+      <elf-symbol name='skb_pull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cc6f633'/>
+      <elf-symbol name='skb_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dfc3435'/>
+      <elf-symbol name='skb_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x304994d'/>
+      <elf-symbol name='skb_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa733531b'/>
+      <elf-symbol name='skb_queue_purge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e4de333'/>
+      <elf-symbol name='skb_queue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefc47e34'/>
+      <elf-symbol name='skb_realloc_headroom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fb763a9'/>
+      <elf-symbol name='skb_recv_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x422e50ea'/>
+      <elf-symbol name='skb_set_owner_w' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c502685'/>
+      <elf-symbol name='skb_store_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x812045e4'/>
+      <elf-symbol name='skb_to_sgvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a979142'/>
+      <elf-symbol name='skb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0fc770b'/>
+      <elf-symbol name='skb_tstamp_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x355f8b9e'/>
+      <elf-symbol name='skb_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda079344'/>
+      <elf-symbol name='skcipher_alloc_instance_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59d006b8'/>
+      <elf-symbol name='skcipher_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3de94d03'/>
+      <elf-symbol name='skcipher_walk_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f774821'/>
+      <elf-symbol name='skcipher_walk_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf63ea406'/>
+      <elf-symbol name='skcipher_walk_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4489d56d'/>
+      <elf-symbol name='skcipher_walk_virt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5276c19'/>
+      <elf-symbol name='skip_spaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a91bab'/>
+      <elf-symbol name='smp_call_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0eae826'/>
+      <elf-symbol name='smp_call_function_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6228c21f'/>
+      <elf-symbol name='smp_call_on_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x267df662'/>
+      <elf-symbol name='snd_card_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdfd6625'/>
+      <elf-symbol name='snd_card_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef6eddfc'/>
+      <elf-symbol name='snd_card_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a37a0d0'/>
+      <elf-symbol name='snd_card_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5cbf4f2'/>
+      <elf-symbol name='snd_card_rw_proc_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd51fdacc'/>
+      <elf-symbol name='snd_component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31099de2'/>
+      <elf-symbol name='snd_compr_stop_error' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3f729d7'/>
+      <elf-symbol name='snd_ctl_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dd00758'/>
+      <elf-symbol name='snd_ctl_add_vmaster_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8369dd7'/>
+      <elf-symbol name='snd_ctl_apply_vmaster_followers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x945d47bd'/>
+      <elf-symbol name='snd_ctl_boolean_mono_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b3c0c99'/>
+      <elf-symbol name='snd_ctl_boolean_stereo_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2125812'/>
+      <elf-symbol name='snd_ctl_enum_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc6a729f'/>
+      <elf-symbol name='snd_ctl_find_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8519b49f'/>
+      <elf-symbol name='snd_ctl_make_virtual_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc183bcf5'/>
+      <elf-symbol name='snd_ctl_new1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3e6085'/>
+      <elf-symbol name='snd_ctl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30f07ba0'/>
+      <elf-symbol name='snd_ctl_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4b9e84'/>
+      <elf-symbol name='snd_ctl_sync_vmaster' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbec79d12'/>
+      <elf-symbol name='snd_device_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x435912a0'/>
+      <elf-symbol name='snd_device_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa504e02d'/>
+      <elf-symbol name='snd_device_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c8efcb9'/>
+      <elf-symbol name='snd_dma_alloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x101af08e'/>
+      <elf-symbol name='snd_dma_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc56f3bd7'/>
+      <elf-symbol name='snd_dmaengine_pcm_prepare_slave_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5c8e755'/>
+      <elf-symbol name='snd_info_create_card_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf60c750'/>
+      <elf-symbol name='snd_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ad37b12'/>
+      <elf-symbol name='snd_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ff8a7ce'/>
+      <elf-symbol name='snd_jack_set_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfbccca3'/>
+      <elf-symbol name='snd_pci_quirk_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6bd440c'/>
+      <elf-symbol name='snd_pcm_add_chmap_ctls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x194eb890'/>
+      <elf-symbol name='snd_pcm_create_iec958_consumer_hw_params' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11eba48e'/>
+      <elf-symbol name='snd_pcm_format_physical_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68a24153'/>
+      <elf-symbol name='snd_pcm_format_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe56a9336'/>
+      <elf-symbol name='snd_pcm_hw_constraint_eld' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacdcf376'/>
+      <elf-symbol name='snd_pcm_hw_constraint_integer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc90a73c1'/>
+      <elf-symbol name='snd_pcm_hw_constraint_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7f86544'/>
+      <elf-symbol name='snd_pcm_hw_constraint_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe94a10eb'/>
+      <elf-symbol name='snd_pcm_hw_constraint_step' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6e311c'/>
+      <elf-symbol name='snd_pcm_hw_limit_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69255f54'/>
+      <elf-symbol name='snd_pcm_lib_default_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd24e23a0'/>
+      <elf-symbol name='snd_pcm_lib_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1eeec4f5'/>
+      <elf-symbol name='snd_pcm_lib_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed2fb049'/>
+      <elf-symbol name='snd_pcm_lib_malloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e41abd7'/>
+      <elf-symbol name='snd_pcm_lib_preallocate_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a35cebb'/>
+      <elf-symbol name='snd_pcm_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb583072'/>
+      <elf-symbol name='snd_pcm_period_elapsed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66ff9fa1'/>
+      <elf-symbol name='snd_pcm_set_managed_buffer_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36a6600c'/>
+      <elf-symbol name='snd_pcm_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7984e578'/>
+      <elf-symbol name='snd_pcm_set_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x752db5dc'/>
+      <elf-symbol name='snd_soc_add_component_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7fadfcc'/>
+      <elf-symbol name='snd_soc_add_dai_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd069fffa'/>
+      <elf-symbol name='snd_soc_bytes_tlv_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x315fc680'/>
+      <elf-symbol name='snd_soc_card_get_kcontrol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc34fc150'/>
+      <elf-symbol name='snd_soc_card_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff4e4c72'/>
+      <elf-symbol name='snd_soc_component_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd9112dc'/>
+      <elf-symbol name='snd_soc_component_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x837595d'/>
+      <elf-symbol name='snd_soc_component_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x523ac458'/>
+      <elf-symbol name='snd_soc_component_get_pin_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7572bc7'/>
+      <elf-symbol name='snd_soc_component_init_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd702ca52'/>
+      <elf-symbol name='snd_soc_component_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3de9e84a'/>
+      <elf-symbol name='snd_soc_component_set_jack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597de7e4'/>
+      <elf-symbol name='snd_soc_component_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f51b77b'/>
+      <elf-symbol name='snd_soc_component_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x510ebcc2'/>
+      <elf-symbol name='snd_soc_component_update_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d173235'/>
+      <elf-symbol name='snd_soc_component_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6369bae'/>
+      <elf-symbol name='snd_soc_dai_get_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2af87ab9'/>
+      <elf-symbol name='snd_soc_dai_link_set_capabilities' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf25e56df'/>
+      <elf-symbol name='snd_soc_dai_set_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e3b7277'/>
+      <elf-symbol name='snd_soc_dai_set_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67b04ebf'/>
+      <elf-symbol name='snd_soc_dai_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70929698'/>
+      <elf-symbol name='snd_soc_dai_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d6925b2'/>
+      <elf-symbol name='snd_soc_dai_set_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3915cf8'/>
+      <elf-symbol name='snd_soc_dapm_add_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9711b2e'/>
+      <elf-symbol name='snd_soc_dapm_del_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d7e23dc'/>
+      <elf-symbol name='snd_soc_dapm_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ae2f2aa'/>
+      <elf-symbol name='snd_soc_dapm_disable_pin_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x166400ff'/>
+      <elf-symbol name='snd_soc_dapm_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc26a35e5'/>
+      <elf-symbol name='snd_soc_dapm_force_enable_pin_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c08ac08'/>
+      <elf-symbol name='snd_soc_dapm_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41fd627f'/>
+      <elf-symbol name='snd_soc_dapm_get_pin_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5ccb386'/>
+      <elf-symbol name='snd_soc_dapm_get_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bb69a68'/>
+      <elf-symbol name='snd_soc_dapm_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e2b5099'/>
+      <elf-symbol name='snd_soc_dapm_ignore_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3e82506'/>
+      <elf-symbol name='snd_soc_dapm_info_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9376771'/>
+      <elf-symbol name='snd_soc_dapm_kcontrol_dapm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf928af45'/>
+      <elf-symbol name='snd_soc_dapm_kcontrol_widget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee83fe3'/>
+      <elf-symbol name='snd_soc_dapm_mixer_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfceb3329'/>
+      <elf-symbol name='snd_soc_dapm_mux_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb61bbd7d'/>
+      <elf-symbol name='snd_soc_dapm_new_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aa4dfae'/>
+      <elf-symbol name='snd_soc_dapm_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x651def1e'/>
+      <elf-symbol name='snd_soc_dapm_put_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf985d9b'/>
+      <elf-symbol name='snd_soc_dapm_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9826afda'/>
+      <elf-symbol name='snd_soc_dapm_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e2036bd'/>
+      <elf-symbol name='snd_soc_dapm_sync_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1f26b1f'/>
+      <elf-symbol name='snd_soc_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82df511f'/>
+      <elf-symbol name='snd_soc_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x336828d3'/>
+      <elf-symbol name='snd_soc_get_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4d6bd04'/>
+      <elf-symbol name='snd_soc_get_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x863c1760'/>
+      <elf-symbol name='snd_soc_info_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69e25b80'/>
+      <elf-symbol name='snd_soc_info_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe5e3d2a'/>
+      <elf-symbol name='snd_soc_info_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66358a5a'/>
+      <elf-symbol name='snd_soc_info_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4ea0be'/>
+      <elf-symbol name='snd_soc_jack_add_gpios' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3efa62'/>
+      <elf-symbol name='snd_soc_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe52138e3'/>
+      <elf-symbol name='snd_soc_lookup_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50099584'/>
+      <elf-symbol name='snd_soc_new_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ec7b334'/>
+      <elf-symbol name='snd_soc_of_get_dai_link_codecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa607565d'/>
+      <elf-symbol name='snd_soc_of_get_dai_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13eecb9b'/>
+      <elf-symbol name='snd_soc_of_parse_audio_routing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93107ea2'/>
+      <elf-symbol name='snd_soc_of_parse_audio_simple_widgets' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4db26788'/>
+      <elf-symbol name='snd_soc_of_parse_aux_devs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9216906c'/>
+      <elf-symbol name='snd_soc_of_parse_card_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9e12870'/>
+      <elf-symbol name='snd_soc_of_parse_daifmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3398f480'/>
+      <elf-symbol name='snd_soc_of_parse_node_prefix' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7d4fe7b'/>
+      <elf-symbol name='snd_soc_of_parse_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe56703b'/>
+      <elf-symbol name='snd_soc_params_to_bclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb711ae7'/>
+      <elf-symbol name='snd_soc_params_to_frame_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8269f94'/>
+      <elf-symbol name='snd_soc_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfcfef'/>
+      <elf-symbol name='snd_soc_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2e1149'/>
+      <elf-symbol name='snd_soc_put_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66d623f4'/>
+      <elf-symbol name='snd_soc_put_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7834364'/>
+      <elf-symbol name='snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd536a1f6'/>
+      <elf-symbol name='snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x276d5579'/>
+      <elf-symbol name='snd_soc_runtime_calc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbe432b3'/>
+      <elf-symbol name='snd_soc_runtime_set_dai_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47ba795a'/>
+      <elf-symbol name='snd_soc_set_runtime_hwparams' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8f0c83c'/>
+      <elf-symbol name='snd_soc_unregister_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96ca3247'/>
+      <elf-symbol name='snd_soc_unregister_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44bfdcd9'/>
+      <elf-symbol name='snd_vendor_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc33f5864'/>
+      <elf-symbol name='snprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656e4a6e'/>
+      <elf-symbol name='soc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd7266a'/>
+      <elf-symbol name='soc_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19c20269'/>
+      <elf-symbol name='sock_alloc_send_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x594fafcb'/>
+      <elf-symbol name='sock_create_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3559b27'/>
+      <elf-symbol name='sock_efree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5869565d'/>
+      <elf-symbol name='sock_gettstamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37fe361'/>
+      <elf-symbol name='sock_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe50a0b2f'/>
+      <elf-symbol name='sock_no_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad0c7b66'/>
+      <elf-symbol name='sock_no_listen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9726b3a3'/>
+      <elf-symbol name='sock_no_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a163f2'/>
+      <elf-symbol name='sock_no_sendpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bb80d58'/>
+      <elf-symbol name='sock_no_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8e8c443'/>
+      <elf-symbol name='sock_no_socketpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b096036'/>
+      <elf-symbol name='sock_queue_rcv_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa456e1f9'/>
+      <elf-symbol name='sock_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04587cd'/>
+      <elf-symbol name='sock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2398121c'/>
+      <elf-symbol name='sock_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5ed42a4'/>
+      <elf-symbol name='sock_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42081eef'/>
+      <elf-symbol name='sock_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62737e1d'/>
+      <elf-symbol name='sock_wfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55b9e087'/>
+      <elf-symbol name='sockfd_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x371fc080'/>
+      <elf-symbol name='sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c0f443'/>
+      <elf-symbol name='spi_bus_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdaf9199'/>
+      <elf-symbol name='spi_bus_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbdf09f0'/>
+      <elf-symbol name='spi_controller_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d84cf3'/>
+      <elf-symbol name='spi_controller_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05d9ef5'/>
+      <elf-symbol name='spi_delay_exec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76306859'/>
+      <elf-symbol name='spi_finalize_current_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x235607d5'/>
+      <elf-symbol name='spi_finalize_current_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd26553d'/>
+      <elf-symbol name='spi_get_next_queued_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fc72960'/>
+      <elf-symbol name='spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93e695ba'/>
+      <elf-symbol name='spi_set_cs_timing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e3f9341'/>
+      <elf-symbol name='spi_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27b5f945'/>
+      <elf-symbol name='spi_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0683dae'/>
+      <elf-symbol name='spi_sync_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeea5a731'/>
+      <elf-symbol name='spi_unregister_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x842669e0'/>
+      <elf-symbol name='split_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x783724d8'/>
+      <elf-symbol name='spmi_controller_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x138e14f4'/>
+      <elf-symbol name='spmi_controller_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x385a43d8'/>
+      <elf-symbol name='spmi_controller_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb172fdd3'/>
+      <elf-symbol name='spmi_ext_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d266657'/>
+      <elf-symbol name='spmi_ext_register_readl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd47ce324'/>
+      <elf-symbol name='spmi_ext_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc06fcbdb'/>
+      <elf-symbol name='spmi_ext_register_writel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f5a53c5'/>
+      <elf-symbol name='spmi_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656df3c3'/>
+      <elf-symbol name='spmi_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9c41335'/>
+      <elf-symbol name='spmi_register_zero_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd45cbd3'/>
+      <elf-symbol name='sprint_symbol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x661601de'/>
+      <elf-symbol name='sprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c3ff9fd'/>
+      <elf-symbol name='srcu_init_notifier_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36d70b72'/>
+      <elf-symbol name='srcu_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa9d85fd'/>
+      <elf-symbol name='srcu_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5dec381'/>
+      <elf-symbol name='srcu_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc579925f'/>
+      <elf-symbol name='sscanf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcab6ee6'/>
+      <elf-symbol name='static_key_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb912560d'/>
+      <elf-symbol name='static_key_slow_dec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f4880df'/>
+      <elf-symbol name='static_key_slow_inc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e92f7c4'/>
+      <elf-symbol name='stop_machine' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfc04014'/>
+      <elf-symbol name='stpcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4db35bc'/>
+      <elf-symbol name='strcasecmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaafdc258'/>
+      <elf-symbol name='strcat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61651be'/>
+      <elf-symbol name='strchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x349cba85'/>
+      <elf-symbol name='strchrnul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceab0311'/>
+      <elf-symbol name='strcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xe2d5255a'/>
+      <elf-symbol name='strcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe914e41e'/>
+      <elf-symbol name='strcspn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ac5d3cb'/>
+      <elf-symbol name='stream_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b1e1ba6'/>
+      <elf-symbol name='strim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77bc13a0'/>
+      <elf-symbol name='string_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48a91171'/>
+      <elf-symbol name='strlcat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9c0b663'/>
+      <elf-symbol name='strlcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5792f848'/>
+      <elf-symbol name='strlen' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x98cf60b3'/>
+      <elf-symbol name='strncasecmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96b29254'/>
+      <elf-symbol name='strncat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e2b40d2'/>
+      <elf-symbol name='strnchr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4841bdee'/>
+      <elf-symbol name='strncmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x5a921311'/>
+      <elf-symbol name='strncpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9166fada'/>
+      <elf-symbol name='strncpy_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24428be5'/>
+      <elf-symbol name='strndup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41482d8b'/>
+      <elf-symbol name='strnlen' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xa916b694'/>
+      <elf-symbol name='strnstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc310b981'/>
+      <elf-symbol name='strpbrk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a1dfd65'/>
+      <elf-symbol name='strrchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x9f984513'/>
+      <elf-symbol name='strscpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd64e639'/>
+      <elf-symbol name='strsep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85df9b6c'/>
+      <elf-symbol name='strspn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc29bf967'/>
+      <elf-symbol name='strstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e6d26a8'/>
+      <elf-symbol name='submit_bio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2fe6934'/>
+      <elf-symbol name='submit_bio_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42bca0bc'/>
+      <elf-symbol name='subsys_system_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0153998'/>
+      <elf-symbol name='sync_file_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x810751d5'/>
+      <elf-symbol name='sync_file_get_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dca08ee'/>
+      <elf-symbol name='synchronize_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe523ad75'/>
+      <elf-symbol name='synchronize_net' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609f1c7e'/>
+      <elf-symbol name='synchronize_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091797f'/>
+      <elf-symbol name='synchronize_srcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b0243a'/>
+      <elf-symbol name='syscon_node_to_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70dedd22'/>
+      <elf-symbol name='syscon_regmap_lookup_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9bdf56a'/>
+      <elf-symbol name='sysfs_add_file_to_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf6f0e0a'/>
+      <elf-symbol name='sysfs_add_link_to_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15835ed2'/>
+      <elf-symbol name='sysfs_create_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade52431'/>
+      <elf-symbol name='sysfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc643809b'/>
+      <elf-symbol name='sysfs_create_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49e6782c'/>
+      <elf-symbol name='sysfs_create_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfd0dcc0'/>
+      <elf-symbol name='sysfs_create_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c580aaa'/>
+      <elf-symbol name='sysfs_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe783e261'/>
+      <elf-symbol name='sysfs_emit_at' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99f2d00a'/>
+      <elf-symbol name='sysfs_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f5a72a0'/>
+      <elf-symbol name='sysfs_remove_file_from_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52086455'/>
+      <elf-symbol name='sysfs_remove_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae8815c8'/>
+      <elf-symbol name='sysfs_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0914a1d'/>
+      <elf-symbol name='sysfs_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd968e310'/>
+      <elf-symbol name='sysfs_remove_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9cb02b2'/>
+      <elf-symbol name='sysfs_remove_link_from_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37671e8'/>
+      <elf-symbol name='sysfs_streq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x222e7ce2'/>
+      <elf-symbol name='sysfs_update_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x542fc9ce'/>
+      <elf-symbol name='sysrq_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a17ed66'/>
+      <elf-symbol name='task_active_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99333af9'/>
+      <elf-symbol name='task_may_not_preempt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b731107'/>
+      <elf-symbol name='task_rq_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c340'/>
+      <elf-symbol name='tasklet_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2364c85a'/>
+      <elf-symbol name='tasklet_kill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3c74e'/>
+      <elf-symbol name='tasklet_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa07d1b3c'/>
+      <elf-symbol name='tcpci_get_tcpm_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe111953'/>
+      <elf-symbol name='tcpci_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f497a3c'/>
+      <elf-symbol name='tcpci_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73c805f5'/>
+      <elf-symbol name='tcpci_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc529e32e'/>
+      <elf-symbol name='tcpm_cc_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc37b9769'/>
+      <elf-symbol name='tcpm_is_toggling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd974a755'/>
+      <elf-symbol name='tcpm_pd_hard_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e0bd753'/>
+      <elf-symbol name='tcpm_pd_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb655342c'/>
+      <elf-symbol name='tcpm_pd_transmit_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b84657b'/>
+      <elf-symbol name='tcpm_sink_frs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10ec6d2d'/>
+      <elf-symbol name='tcpm_sourcing_vbus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb779665'/>
+      <elf-symbol name='tcpm_update_sink_capabilities' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x622a422a'/>
+      <elf-symbol name='tcpm_vbus_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceb50012'/>
+      <elf-symbol name='thermal_cdev_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6900ebaf'/>
+      <elf-symbol name='thermal_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa62e5525'/>
+      <elf-symbol name='thermal_cooling_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47a18607'/>
+      <elf-symbol name='thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf5fd5e0'/>
+      <elf-symbol name='thermal_zone_device_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb2c78f2'/>
+      <elf-symbol name='thermal_zone_device_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56a42df8'/>
+      <elf-symbol name='thermal_zone_device_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2854f8a'/>
+      <elf-symbol name='thermal_zone_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ed59737'/>
+      <elf-symbol name='thermal_zone_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d8b7e10'/>
+      <elf-symbol name='thermal_zone_device_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597d8673'/>
+      <elf-symbol name='thermal_zone_get_slope' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x463a94b0'/>
+      <elf-symbol name='thermal_zone_get_temp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f672fc3'/>
+      <elf-symbol name='thermal_zone_get_zone_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf8fe6fa'/>
+      <elf-symbol name='thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c5332f8'/>
+      <elf-symbol name='thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4375897f'/>
+      <elf-symbol name='thread_group_cputime_adjusted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b1b2842'/>
+      <elf-symbol name='tick_nohz_get_idle_calls_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2943498b'/>
+      <elf-symbol name='time64_to_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff5afc'/>
+      <elf-symbol name='timecounter_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x862258db'/>
+      <elf-symbol name='timecounter_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f9e763b'/>
+      <elf-symbol name='topology_set_thermal_pressure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea0dce63'/>
+      <elf-symbol name='touch_softlockup_watchdog' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fcb87a1'/>
+      <elf-symbol name='trace_event_buffer_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6271d31'/>
+      <elf-symbol name='trace_event_buffer_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47f65a7'/>
+      <elf-symbol name='trace_event_ignore_this_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec2deccc'/>
+      <elf-symbol name='trace_event_raw_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7815d22f'/>
+      <elf-symbol name='trace_event_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75b1b897'/>
+      <elf-symbol name='trace_handle_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7381287f'/>
+      <elf-symbol name='trace_output_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50fa7004'/>
+      <elf-symbol name='trace_print_array_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3bc72ad'/>
+      <elf-symbol name='trace_print_bitmask_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a58dd2d'/>
+      <elf-symbol name='trace_print_flags_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99078b39'/>
+      <elf-symbol name='trace_print_hex_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe02ba436'/>
+      <elf-symbol name='trace_print_symbols_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc5c2df4'/>
+      <elf-symbol name='trace_raw_output_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ef0d04'/>
+      <elf-symbol name='trace_seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x525d0aa3'/>
+      <elf-symbol name='trace_seq_putc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b5f4377'/>
+      <elf-symbol name='tracepoint_probe_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95e102ab'/>
+      <elf-symbol name='tracepoint_probe_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbeeece6'/>
+      <elf-symbol name='try_module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12406514'/>
+      <elf-symbol name='try_to_del_timer_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfaf9e645'/>
+      <elf-symbol name='try_wait_for_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21ef374c'/>
+      <elf-symbol name='tty_flip_buffer_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe66395f0'/>
+      <elf-symbol name='tty_hangup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b787c8'/>
+      <elf-symbol name='tty_insert_flip_string_fixed_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdec41eb4'/>
+      <elf-symbol name='tty_kref_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf900d62d'/>
+      <elf-symbol name='tty_mode_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35f9a02a'/>
+      <elf-symbol name='tty_port_tty_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98075942'/>
+      <elf-symbol name='tty_register_ldisc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88298f7a'/>
+      <elf-symbol name='tty_termios_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x409873e3'/>
+      <elf-symbol name='tty_termios_encode_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5641485b'/>
+      <elf-symbol name='tty_unregister_ldisc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa120d33c'/>
+      <elf-symbol name='typec_switch_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbbc9f23'/>
+      <elf-symbol name='typec_switch_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50918654'/>
+      <elf-symbol name='typec_switch_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64ae4df6'/>
+      <elf-symbol name='uart_add_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1181c7da'/>
+      <elf-symbol name='uart_console_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb53aed0'/>
+      <elf-symbol name='uart_console_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50708754'/>
+      <elf-symbol name='uart_get_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ce3d604'/>
+      <elf-symbol name='uart_parse_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f72a987'/>
+      <elf-symbol name='uart_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x219b572'/>
+      <elf-symbol name='uart_remove_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a490080'/>
+      <elf-symbol name='uart_resume_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d492b33'/>
+      <elf-symbol name='uart_set_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c325cf8'/>
+      <elf-symbol name='uart_suspend_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1fc7d1'/>
+      <elf-symbol name='uart_try_toggle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6426c6b0'/>
+      <elf-symbol name='uart_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf707180d'/>
+      <elf-symbol name='uart_update_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49ded97c'/>
+      <elf-symbol name='uart_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd9d34df'/>
+      <elf-symbol name='uclamp_eff_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d402716'/>
+      <elf-symbol name='udp4_hwcsum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90131ead'/>
+      <elf-symbol name='ufshcd_bkops_ctrl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd920e320'/>
+      <elf-symbol name='ufshcd_dme_configure_adapt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545d1738'/>
+      <elf-symbol name='ufshcd_dme_get_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e39352e'/>
+      <elf-symbol name='ufshcd_dme_set_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65fe13fd'/>
+      <elf-symbol name='ufshcd_dump_regs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1ceff03'/>
+      <elf-symbol name='ufshcd_get_local_unipro_ver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2938536'/>
+      <elf-symbol name='ufshcd_get_pwr_dev_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff85cd6b'/>
+      <elf-symbol name='ufshcd_hold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x537b321c'/>
+      <elf-symbol name='ufshcd_init_pwr_dev_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54c946de'/>
+      <elf-symbol name='ufshcd_pltfrm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9445da7'/>
+      <elf-symbol name='ufshcd_pltfrm_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf7f326c'/>
+      <elf-symbol name='ufshcd_query_attr_retry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x790374a1'/>
+      <elf-symbol name='ufshcd_query_flag_retry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9d05b9c'/>
+      <elf-symbol name='ufshcd_read_desc_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab27b99d'/>
+      <elf-symbol name='ufshcd_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6315a2bf'/>
+      <elf-symbol name='ufshcd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c214c'/>
+      <elf-symbol name='ufshcd_resume_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c95fae0'/>
+      <elf-symbol name='ufshcd_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcccf88f6'/>
+      <elf-symbol name='ufshcd_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2f5bbf9'/>
+      <elf-symbol name='ufshcd_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec1cf8f'/>
+      <elf-symbol name='ufshcd_suspend_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa9cebb4'/>
+      <elf-symbol name='ufshcd_system_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ed0ea7e'/>
+      <elf-symbol name='ufshcd_system_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x124af89'/>
+      <elf-symbol name='ufshcd_uic_hibern8_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd1d1877'/>
+      <elf-symbol name='ufshcd_uic_hibern8_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa13f8077'/>
+      <elf-symbol name='uio_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51bcc00'/>
+      <elf-symbol name='unlock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfdf1a93'/>
+      <elf-symbol name='unmap_mapping_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3037d1d'/>
+      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf607ac6b'/>
+      <elf-symbol name='unregister_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5a459dc'/>
+      <elf-symbol name='unregister_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3434597'/>
+      <elf-symbol name='unregister_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091b333'/>
+      <elf-symbol name='unregister_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabdccf3'/>
+      <elf-symbol name='unregister_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fe252cc'/>
+      <elf-symbol name='unregister_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe029963'/>
+      <elf-symbol name='unregister_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5b966f2'/>
+      <elf-symbol name='unregister_netdevice_many' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fdecc31'/>
+      <elf-symbol name='unregister_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0d6206'/>
+      <elf-symbol name='unregister_netdevice_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62103836'/>
+      <elf-symbol name='unregister_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe1eddf'/>
+      <elf-symbol name='unregister_oom_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc617f82c'/>
+      <elf-symbol name='unregister_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf79a6'/>
+      <elf-symbol name='unregister_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a8531a'/>
+      <elf-symbol name='unregister_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7681946c'/>
+      <elf-symbol name='unregister_reboot_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac1a55be'/>
+      <elf-symbol name='unregister_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d59096'/>
+      <elf-symbol name='unregister_rpmsg_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d1873c7'/>
+      <elf-symbol name='unregister_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8395c86'/>
+      <elf-symbol name='unregister_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa1eb910'/>
+      <elf-symbol name='unregister_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd691c6a9'/>
+      <elf-symbol name='unregister_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44cbf32d'/>
+      <elf-symbol name='unregister_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3dcff9b'/>
+      <elf-symbol name='unregister_vmap_purge_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c69a63'/>
+      <elf-symbol name='up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2a6966'/>
+      <elf-symbol name='up_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b50e951'/>
+      <elf-symbol name='up_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20d81059'/>
+      <elf-symbol name='update_devfreq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x750b434d'/>
+      <elf-symbol name='update_rq_clock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe79f369f'/>
+      <elf-symbol name='usb_add_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85db1e69'/>
+      <elf-symbol name='usb_add_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67f580dd'/>
+      <elf-symbol name='usb_alloc_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd085060f'/>
+      <elf-symbol name='usb_alloc_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a27b4f'/>
+      <elf-symbol name='usb_amd_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9b9df41'/>
+      <elf-symbol name='usb_amd_prefetch_quirk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd87fc0a0'/>
+      <elf-symbol name='usb_amd_quirk_pll_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf4014ff'/>
+      <elf-symbol name='usb_amd_quirk_pll_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc825d6c'/>
+      <elf-symbol name='usb_amd_quirk_pll_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10ecc52c'/>
+      <elf-symbol name='usb_anchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x684877e8'/>
+      <elf-symbol name='usb_autopm_get_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14baaf6f'/>
+      <elf-symbol name='usb_autopm_put_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7a50b11'/>
+      <elf-symbol name='usb_bulk_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc35060b'/>
+      <elf-symbol name='usb_calc_bus_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e64181d'/>
+      <elf-symbol name='usb_control_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b4c58cd'/>
+      <elf-symbol name='usb_copy_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e09263f'/>
+      <elf-symbol name='usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3113070'/>
+      <elf-symbol name='usb_create_shared_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aee2d6e'/>
+      <elf-symbol name='usb_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7cfe98'/>
+      <elf-symbol name='usb_disabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a304ba'/>
+      <elf-symbol name='usb_driver_claim_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd0740d5'/>
+      <elf-symbol name='usb_driver_release_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf97068c'/>
+      <elf-symbol name='usb_enable_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee0e3169'/>
+      <elf-symbol name='usb_ep_alloc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880d48e4'/>
+      <elf-symbol name='usb_ep_autoconfig' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x207079fa'/>
+      <elf-symbol name='usb_ep_clear_halt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9370b708'/>
+      <elf-symbol name='usb_ep_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbadfaba7'/>
+      <elf-symbol name='usb_ep_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aec8cdd'/>
+      <elf-symbol name='usb_ep_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dbea237'/>
+      <elf-symbol name='usb_ep_fifo_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa50158bd'/>
+      <elf-symbol name='usb_ep_fifo_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4408f42c'/>
+      <elf-symbol name='usb_ep_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d6766db'/>
+      <elf-symbol name='usb_ep_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4616fc7'/>
+      <elf-symbol name='usb_ep_set_halt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8310b89e'/>
+      <elf-symbol name='usb_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x447fe056'/>
+      <elf-symbol name='usb_free_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb98ec8e2'/>
+      <elf-symbol name='usb_function_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91174c19'/>
+      <elf-symbol name='usb_function_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x260ab682'/>
+      <elf-symbol name='usb_gadget_probe_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x189df051'/>
+      <elf-symbol name='usb_gadget_set_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8689476f'/>
+      <elf-symbol name='usb_gadget_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9748fc08'/>
+      <elf-symbol name='usb_gadget_vbus_draw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a13080e'/>
+      <elf-symbol name='usb_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1939c931'/>
+      <elf-symbol name='usb_get_from_anchor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9479807'/>
+      <elf-symbol name='usb_get_gadget_udc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b88f41'/>
+      <elf-symbol name='usb_hc_died' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x788dbd87'/>
+      <elf-symbol name='usb_hcd_check_unlink_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4566980c'/>
+      <elf-symbol name='usb_hcd_giveback_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea9d0fcb'/>
+      <elf-symbol name='usb_hcd_is_primary_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dad2191'/>
+      <elf-symbol name='usb_hcd_link_urb_to_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef68b7db'/>
+      <elf-symbol name='usb_hcd_pci_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd94c9789'/>
+      <elf-symbol name='usb_hcd_pci_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b26df68'/>
+      <elf-symbol name='usb_hcd_pci_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec24a61a'/>
+      <elf-symbol name='usb_hcd_platform_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5f7066'/>
+      <elf-symbol name='usb_hcd_poll_rh_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76629662'/>
+      <elf-symbol name='usb_hcd_resume_root_hub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29ab89a9'/>
+      <elf-symbol name='usb_hcd_unlink_urb_from_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x174c7fa1'/>
+      <elf-symbol name='usb_hub_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77a0fcdb'/>
+      <elf-symbol name='usb_ifnum_to_if' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3a694b5'/>
+      <elf-symbol name='usb_interface_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec3385da'/>
+      <elf-symbol name='usb_kill_anchored_urbs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x962c8ae1'/>
+      <elf-symbol name='usb_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8541c7c3'/>
+      <elf-symbol name='usb_otg_state_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f0d9053'/>
+      <elf-symbol name='usb_put_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8939becb'/>
+      <elf-symbol name='usb_put_function_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd71f1853'/>
+      <elf-symbol name='usb_put_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43ca3f4c'/>
+      <elf-symbol name='usb_queue_reset_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81796706'/>
+      <elf-symbol name='usb_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd3565c8'/>
+      <elf-symbol name='usb_register_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89bbafc6'/>
+      <elf-symbol name='usb_remove_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dc9728f'/>
+      <elf-symbol name='usb_role_switch_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62214251'/>
+      <elf-symbol name='usb_role_switch_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1690b503'/>
+      <elf-symbol name='usb_role_switch_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9fd634a'/>
+      <elf-symbol name='usb_role_switch_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5e07cdb'/>
+      <elf-symbol name='usb_role_switch_set_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5474690'/>
+      <elf-symbol name='usb_role_switch_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2882d40e'/>
+      <elf-symbol name='usb_root_hub_lost_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb605ccc1'/>
+      <elf-symbol name='usb_scuttle_anchored_urbs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x807766ea'/>
+      <elf-symbol name='usb_set_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeae5af77'/>
+      <elf-symbol name='usb_speed_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ae495d'/>
+      <elf-symbol name='usb_string_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb425390'/>
+      <elf-symbol name='usb_submit_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa17db968'/>
+      <elf-symbol name='usb_unanchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x972f7566'/>
+      <elf-symbol name='usb_unregister_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811dc334'/>
+      <elf-symbol name='usbnet_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5afad7eb'/>
+      <elf-symbol name='usbnet_get_endpoints' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2d79b62'/>
+      <elf-symbol name='usbnet_get_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x455b7595'/>
+      <elf-symbol name='usbnet_get_stats64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75948999'/>
+      <elf-symbol name='usbnet_link_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160fce3b'/>
+      <elf-symbol name='usbnet_nway_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37096042'/>
+      <elf-symbol name='usbnet_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88d250e0'/>
+      <elf-symbol name='usbnet_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbc60e7c'/>
+      <elf-symbol name='usbnet_read_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf001db5'/>
+      <elf-symbol name='usbnet_read_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2808b945'/>
+      <elf-symbol name='usbnet_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebde46be'/>
+      <elf-symbol name='usbnet_set_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fed2f1a'/>
+      <elf-symbol name='usbnet_skb_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x118cb8dc'/>
+      <elf-symbol name='usbnet_start_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97118398'/>
+      <elf-symbol name='usbnet_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a7ced7'/>
+      <elf-symbol name='usbnet_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6458ffad'/>
+      <elf-symbol name='usbnet_tx_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5292f49a'/>
+      <elf-symbol name='usbnet_update_max_qlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dcb800b'/>
+      <elf-symbol name='usbnet_write_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd4bd7f1'/>
+      <elf-symbol name='usbnet_write_cmd_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb99981f7'/>
+      <elf-symbol name='usbnet_write_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4b5a865'/>
+      <elf-symbol name='usleep_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a38747'/>
+      <elf-symbol name='uuid_gen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69e683de'/>
+      <elf-symbol name='v4l2_ctrl_handler_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9609b6ee'/>
+      <elf-symbol name='v4l2_ctrl_handler_init_class' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5f51a0e'/>
+      <elf-symbol name='v4l2_ctrl_log_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d91eb72'/>
+      <elf-symbol name='v4l2_ctrl_new_custom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x329ae214'/>
+      <elf-symbol name='v4l2_ctrl_new_std' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc687a599'/>
+      <elf-symbol name='v4l2_ctrl_new_std_menu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac092950'/>
+      <elf-symbol name='v4l2_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd70cbb2b'/>
+      <elf-symbol name='v4l2_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7783d7ef'/>
+      <elf-symbol name='v4l2_fh_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f65a12b'/>
+      <elf-symbol name='v4l2_fh_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd07eb37e'/>
+      <elf-symbol name='v4l2_fh_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3735a644'/>
+      <elf-symbol name='v4l2_fh_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x625efb02'/>
+      <elf-symbol name='v4l2_fh_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86e3af4a'/>
+      <elf-symbol name='v4l2_m2m_buf_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x258a5ff2'/>
+      <elf-symbol name='v4l2_m2m_buf_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3b7174'/>
+      <elf-symbol name='v4l2_m2m_ctx_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea42cf1f'/>
+      <elf-symbol name='v4l2_m2m_ctx_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7493bc24'/>
+      <elf-symbol name='v4l2_m2m_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x742aed31'/>
+      <elf-symbol name='v4l2_m2m_fop_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c8f7394'/>
+      <elf-symbol name='v4l2_m2m_get_curr_priv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x459e133f'/>
+      <elf-symbol name='v4l2_m2m_get_vq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13ccb6c3'/>
+      <elf-symbol name='v4l2_m2m_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x730f2eae'/>
+      <elf-symbol name='v4l2_m2m_ioctl_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee534dec'/>
+      <elf-symbol name='v4l2_m2m_ioctl_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fb4c169'/>
+      <elf-symbol name='v4l2_m2m_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45a82327'/>
+      <elf-symbol name='v4l2_m2m_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fb46642'/>
+      <elf-symbol name='v4l2_m2m_ioctl_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fced1ca'/>
+      <elf-symbol name='v4l2_m2m_job_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40e86d2c'/>
+      <elf-symbol name='v4l2_m2m_next_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d3cd793'/>
+      <elf-symbol name='v4l2_m2m_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd072b53f'/>
+      <elf-symbol name='v4l2_m2m_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6fca5ad'/>
+      <elf-symbol name='vb2_buffer_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2a81230'/>
+      <elf-symbol name='vb2_create_framevec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa21fa765'/>
+      <elf-symbol name='vb2_destroy_framevec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd197c7'/>
+      <elf-symbol name='vb2_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceeb727c'/>
+      <elf-symbol name='vb2_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0d85633'/>
+      <elf-symbol name='vb2_fop_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f6c6788'/>
+      <elf-symbol name='vb2_fop_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc2f23ca'/>
+      <elf-symbol name='vb2_fop_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb33da09a'/>
+      <elf-symbol name='vb2_ioctl_create_bufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7652ddec'/>
+      <elf-symbol name='vb2_ioctl_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb926aea7'/>
+      <elf-symbol name='vb2_ioctl_expbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6b1fb46'/>
+      <elf-symbol name='vb2_ioctl_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84c9c0a9'/>
+      <elf-symbol name='vb2_ioctl_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66478683'/>
+      <elf-symbol name='vb2_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb938cccf'/>
+      <elf-symbol name='vb2_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c05f809'/>
+      <elf-symbol name='vb2_ioctl_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2250eea8'/>
+      <elf-symbol name='vb2_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd857de69'/>
+      <elf-symbol name='vb2_ops_wait_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88465c8a'/>
+      <elf-symbol name='vb2_ops_wait_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ed175d2'/>
+      <elf-symbol name='vb2_plane_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe068f685'/>
+      <elf-symbol name='vb2_plane_vaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b38d2f4'/>
+      <elf-symbol name='vb2_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd2ff623'/>
+      <elf-symbol name='vb2_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade8e32c'/>
+      <elf-symbol name='vb2_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41779bb0'/>
+      <elf-symbol name='vb2_queue_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x731ead32'/>
+      <elf-symbol name='vb2_queue_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52842dbf'/>
+      <elf-symbol name='vb2_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43b3e84'/>
+      <elf-symbol name='vb2_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc53243c'/>
+      <elf-symbol name='vb2_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5397c067'/>
+      <elf-symbol name='vb2_wait_for_all_buffers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e66d890'/>
+      <elf-symbol name='vchan_dma_desc_free_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x524afb39'/>
+      <elf-symbol name='vchan_find_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x650911f0'/>
+      <elf-symbol name='vchan_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf510d676'/>
+      <elf-symbol name='vchan_tx_desc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb143041'/>
+      <elf-symbol name='vchan_tx_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x623d6e48'/>
+      <elf-symbol name='vfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x999e8297'/>
+      <elf-symbol name='video_devdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea083b50'/>
+      <elf-symbol name='video_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb43f6a'/>
+      <elf-symbol name='video_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30ffd0e3'/>
+      <elf-symbol name='video_device_release_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c8f292d'/>
+      <elf-symbol name='video_ioctl2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82cf2086'/>
+      <elf-symbol name='video_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdca301e3'/>
+      <elf-symbol name='virtio_break_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x603b3a79'/>
+      <elf-symbol name='virtio_check_driver_offered_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7481335c'/>
+      <elf-symbol name='virtio_config_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x142771e8'/>
+      <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea972fc0'/>
+      <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x500b67be'/>
+      <elf-symbol name='virtio_max_dma_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75bb98d2'/>
+      <elf-symbol name='virtio_transport_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf53835e'/>
+      <elf-symbol name='virtio_transport_deliver_tap_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd85f3ac2'/>
+      <elf-symbol name='virtio_transport_destruct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd749a09'/>
+      <elf-symbol name='virtio_transport_dgram_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbabd30f5'/>
+      <elf-symbol name='virtio_transport_dgram_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf58ba2e4'/>
+      <elf-symbol name='virtio_transport_dgram_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x183a0c8f'/>
+      <elf-symbol name='virtio_transport_dgram_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd59370bb'/>
+      <elf-symbol name='virtio_transport_do_socket_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4514ba2'/>
+      <elf-symbol name='virtio_transport_free_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95fcca19'/>
+      <elf-symbol name='virtio_transport_notify_buffer_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bad4245'/>
+      <elf-symbol name='virtio_transport_notify_poll_in' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69db5bd6'/>
+      <elf-symbol name='virtio_transport_notify_poll_out' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53b147c8'/>
+      <elf-symbol name='virtio_transport_notify_recv_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ed6f8a'/>
+      <elf-symbol name='virtio_transport_notify_recv_post_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85968377'/>
+      <elf-symbol name='virtio_transport_notify_recv_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x652457bb'/>
+      <elf-symbol name='virtio_transport_notify_recv_pre_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9efff1b'/>
+      <elf-symbol name='virtio_transport_notify_send_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x647bac1b'/>
+      <elf-symbol name='virtio_transport_notify_send_post_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2272392'/>
+      <elf-symbol name='virtio_transport_notify_send_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x965f9670'/>
+      <elf-symbol name='virtio_transport_notify_send_pre_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd901de36'/>
+      <elf-symbol name='virtio_transport_recv_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97896b02'/>
+      <elf-symbol name='virtio_transport_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4c7a653'/>
+      <elf-symbol name='virtio_transport_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe338c100'/>
+      <elf-symbol name='virtio_transport_stream_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a81e69'/>
+      <elf-symbol name='virtio_transport_stream_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b5b365a'/>
+      <elf-symbol name='virtio_transport_stream_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf91e30'/>
+      <elf-symbol name='virtio_transport_stream_has_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60cff3c2'/>
+      <elf-symbol name='virtio_transport_stream_has_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf07627be'/>
+      <elf-symbol name='virtio_transport_stream_is_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cf70997'/>
+      <elf-symbol name='virtio_transport_stream_rcvhiwat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e1982ac'/>
+      <elf-symbol name='virtqueue_add_inbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc2c00d7'/>
+      <elf-symbol name='virtqueue_add_inbuf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb511c23f'/>
+      <elf-symbol name='virtqueue_add_outbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcab23e5e'/>
+      <elf-symbol name='virtqueue_add_sgs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a6f8fb7'/>
+      <elf-symbol name='virtqueue_detach_unused_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d1ed047'/>
+      <elf-symbol name='virtqueue_disable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e5b4934'/>
+      <elf-symbol name='virtqueue_enable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4159010'/>
+      <elf-symbol name='virtqueue_enable_cb_delayed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb5f5a48'/>
+      <elf-symbol name='virtqueue_enable_cb_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2198d7d'/>
+      <elf-symbol name='virtqueue_get_avail_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5c0c6d9'/>
+      <elf-symbol name='virtqueue_get_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc442049f'/>
+      <elf-symbol name='virtqueue_get_buf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf662de0c'/>
+      <elf-symbol name='virtqueue_get_desc_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe88aaf50'/>
+      <elf-symbol name='virtqueue_get_used_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf45badee'/>
+      <elf-symbol name='virtqueue_get_vring_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dc1b74c'/>
+      <elf-symbol name='virtqueue_is_broken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aaf9343'/>
+      <elf-symbol name='virtqueue_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8305caf'/>
+      <elf-symbol name='virtqueue_kick_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7106ac4d'/>
+      <elf-symbol name='virtqueue_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe455008a'/>
+      <elf-symbol name='virtqueue_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1764edaa'/>
+      <elf-symbol name='vlan_uses_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5581068'/>
+      <elf-symbol name='vlan_vid_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc781f093'/>
+      <elf-symbol name='vlan_vid_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafdd890'/>
+      <elf-symbol name='vlan_vids_add_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe04f0c98'/>
+      <elf-symbol name='vlan_vids_del_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x245cae5c'/>
+      <elf-symbol name='vm_get_page_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c91e17c'/>
+      <elf-symbol name='vm_iomap_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2e3b3af'/>
+      <elf-symbol name='vm_map_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9232b7'/>
+      <elf-symbol name='vm_map_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b4d5a03'/>
+      <elf-symbol name='vm_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f12bcd'/>
+      <elf-symbol name='vm_unmap_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd2571'/>
+      <elf-symbol name='vmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ee688f'/>
+      <elf-symbol name='vmalloc_to_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x547f5759'/>
+      <elf-symbol name='vmalloc_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5635a60a'/>
+      <elf-symbol name='vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4667155b'/>
+      <elf-symbol name='vmemdup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90576ec4'/>
+      <elf-symbol name='vmf_insert_mixed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb5dd91'/>
+      <elf-symbol name='vmf_insert_pfn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ef2e98e'/>
+      <elf-symbol name='vmf_insert_pfn_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92343325'/>
+      <elf-symbol name='vprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x715a5ed0'/>
+      <elf-symbol name='vring_create_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a649fb6'/>
+      <elf-symbol name='vring_del_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1c5fffd'/>
+      <elf-symbol name='vring_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff05fa13'/>
+      <elf-symbol name='vring_new_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbce573e'/>
+      <elf-symbol name='vring_transport_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x290906bd'/>
+      <elf-symbol name='vscnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa0c318b'/>
+      <elf-symbol name='vsnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148653'/>
+      <elf-symbol name='vsock_core_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fece0cb'/>
+      <elf-symbol name='vsock_core_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf25a6f87'/>
+      <elf-symbol name='vsock_for_each_connected_socket' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x420e2f63'/>
+      <elf-symbol name='vsscanf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50d035c2'/>
+      <elf-symbol name='vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94961283'/>
+      <elf-symbol name='vzalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40a9b349'/>
+      <elf-symbol name='vzalloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e0c711d'/>
+      <elf-symbol name='wait_for_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25974000'/>
+      <elf-symbol name='wait_for_completion_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e3bcce2'/>
+      <elf-symbol name='wait_for_completion_interruptible_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf02aa937'/>
+      <elf-symbol name='wait_for_completion_io_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c26a53b'/>
+      <elf-symbol name='wait_for_completion_killable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20463df4'/>
+      <elf-symbol name='wait_for_completion_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a3ad70e'/>
+      <elf-symbol name='wait_woken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb308c97d'/>
+      <elf-symbol name='wake_up_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0fbac79'/>
+      <elf-symbol name='wake_up_process' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb866fceb'/>
+      <elf-symbol name='wakeup_source_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bb4089'/>
+      <elf-symbol name='wakeup_source_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x752ec0b'/>
+      <elf-symbol name='wakeup_source_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa39e253'/>
+      <elf-symbol name='wakeup_source_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9ac532'/>
+      <elf-symbol name='wakeup_source_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdde5d958'/>
+      <elf-symbol name='wakeup_source_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x726881a7'/>
+      <elf-symbol name='watchdog_init_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0fea008'/>
+      <elf-symbol name='watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d8914a'/>
+      <elf-symbol name='watchdog_set_restart_priority' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63132125'/>
+      <elf-symbol name='watchdog_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91bf1765'/>
+      <elf-symbol name='wiphy_apply_custom_regulatory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aa8f50b'/>
+      <elf-symbol name='wiphy_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e523e6b'/>
+      <elf-symbol name='wiphy_new_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57890435'/>
+      <elf-symbol name='wiphy_read_of_freq_limits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1bcf9c'/>
+      <elf-symbol name='wiphy_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x833d5421'/>
+      <elf-symbol name='wiphy_rfkill_set_hw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbab2b152'/>
+      <elf-symbol name='wiphy_to_ieee80211_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x544ea8cd'/>
+      <elf-symbol name='wiphy_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff32ffd6'/>
+      <elf-symbol name='wireless_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ded33b0'/>
+      <elf-symbol name='woken_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0654aba'/>
+      <elf-symbol name='work_busy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86ab091d'/>
+      <elf-symbol name='ww_mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c7ae3a2'/>
+      <elf-symbol name='ww_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6b92970'/>
+      <elf-symbol name='xa_clear_mark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x131a6146'/>
+      <elf-symbol name='xa_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9491c14'/>
+      <elf-symbol name='xa_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x745a981'/>
+      <elf-symbol name='xa_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fa25c24'/>
+      <elf-symbol name='xa_find_after' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf36914b'/>
+      <elf-symbol name='xa_get_mark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b6865c'/>
+      <elf-symbol name='xa_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa85a3e6d'/>
+      <elf-symbol name='xa_set_mark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9da0ba4'/>
+      <elf-symbol name='xa_store' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b3e282f'/>
+      <elf-symbol name='xdp_convert_zc_to_xdp_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x508d1837'/>
+      <elf-symbol name='xdp_do_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9681621'/>
+      <elf-symbol name='xdp_do_redirect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf08b36f7'/>
+      <elf-symbol name='xdp_return_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe03ad8a5'/>
+      <elf-symbol name='xdp_return_frame_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa642f76b'/>
+      <elf-symbol name='xdp_rxq_info_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x201cf965'/>
+      <elf-symbol name='xdp_rxq_info_reg_mem_model' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9458573'/>
+      <elf-symbol name='xdp_rxq_info_unreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x200c6045'/>
+      <elf-symbol name='xdp_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb7195a5'/>
+      <elf-symbol name='xfrm_state_lookup_byspi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e25cbd2'/>
+      <elf-symbol name='xfrm_stateonly_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec1e5250'/>
+      <elf-symbol name='xhci_address_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x417d7452'/>
+      <elf-symbol name='xhci_bus_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7a5a481'/>
+      <elf-symbol name='xhci_bus_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10df6c9'/>
+      <elf-symbol name='xhci_gen_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb902237b'/>
+      <elf-symbol name='xhci_get_ep_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb44c7c7a'/>
+      <elf-symbol name='xhci_get_slot_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53320b23'/>
+      <elf-symbol name='xhci_handle_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf19f2ef7'/>
+      <elf-symbol name='xhci_init_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bcf04cf'/>
+      <elf-symbol name='xhci_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76ffe70b'/>
+      <elf-symbol name='xhci_ring_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5ef9ae0'/>
+      <elf-symbol name='xhci_ring_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6612d690'/>
+      <elf-symbol name='xhci_run' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a9bfb0'/>
+      <elf-symbol name='xhci_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff6606dd'/>
+      <elf-symbol name='xhci_update_erst_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f52daee'/>
+      <elf-symbol name='xhci_vendor_get_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c760e5f'/>
+    </elf-function-symbols>
+    <elf-variable-symbols>
+      <elf-symbol name='__cpu_active_mask' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15db3b99'/>
+      <elf-symbol name='__cpu_online_mask' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac594e02'/>
+      <elf-symbol name='__cpu_possible_mask' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde7ece30'/>
+      <elf-symbol name='__cpu_present_mask' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3055449'/>
+      <elf-symbol name='__drm_debug' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f18a150'/>
+      <elf-symbol name='__num_online_cpus' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc60d0620'/>
+      <elf-symbol name='__per_cpu_offset' size='256' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x280f9f14'/>
+      <elf-symbol name='__tracepoint_android_rvh_arm64_serror_panic' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eeb0795'/>
+      <elf-symbol name='__tracepoint_android_rvh_bad_mode' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11c4733a'/>
+      <elf-symbol name='__tracepoint_android_rvh_cgroup_force_kthread_migration' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc180285'/>
+      <elf-symbol name='__tracepoint_android_rvh_check_preempt_wakeup' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e34ad6c'/>
+      <elf-symbol name='__tracepoint_android_rvh_cpu_cgroup_online' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f3039c2'/>
+      <elf-symbol name='__tracepoint_android_rvh_cpu_overutilized' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29b33046'/>
+      <elf-symbol name='__tracepoint_android_rvh_dequeue_task' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf992211e'/>
+      <elf-symbol name='__tracepoint_android_rvh_dequeue_task_fair' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34684643'/>
+      <elf-symbol name='__tracepoint_android_rvh_die_kernel_fault' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33c9af1e'/>
+      <elf-symbol name='__tracepoint_android_rvh_do_mem_abort' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadec6b55'/>
+      <elf-symbol name='__tracepoint_android_rvh_do_sea' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23501356'/>
+      <elf-symbol name='__tracepoint_android_rvh_do_sp_pc_abort' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ed564a9'/>
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+        <enumerator name='CPUHP_POWERPC_MMU_CTX_PREPARE' value='49'/>
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+        <enumerator name='CPUHP_XEN_EVTCHN_PREPARE' value='51'/>
+        <enumerator name='CPUHP_ARM_SHMOBILE_SCU_PREPARE' value='52'/>
+        <enumerator name='CPUHP_SH_SH3X_PREPARE' value='53'/>
+        <enumerator name='CPUHP_NET_FLOW_PREPARE' value='54'/>
+        <enumerator name='CPUHP_TOPOLOGY_PREPARE' value='55'/>
+        <enumerator name='CPUHP_NET_IUCV_PREPARE' value='56'/>
+        <enumerator name='CPUHP_ARM_BL_PREPARE' value='57'/>
+        <enumerator name='CPUHP_TRACE_RB_PREPARE' value='58'/>
+        <enumerator name='CPUHP_MM_ZS_PREPARE' value='59'/>
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+        <enumerator name='CPUHP_MM_ZSWP_POOL_PREPARE' value='61'/>
+        <enumerator name='CPUHP_KVM_PPC_BOOK3S_PREPARE' value='62'/>
+        <enumerator name='CPUHP_ZCOMP_PREPARE' value='63'/>
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+        <enumerator name='CPUHP_AP_CSKY_TIMER_STARTING' value='129'/>
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+        <enumerator name='CPUHP_AP_HYPERV_TIMER_STARTING' value='131'/>
+        <enumerator name='CPUHP_AP_KVM_STARTING' value='132'/>
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+        <enumerator name='CPUHP_AP_DTPM_CPU_ONLINE' value='216'/>
+        <enumerator name='CPUHP_AP_ACTIVE' value='217'/>
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+        <enumerator name='NL80211_ATTR_KEY_IDX' value='8'/>
+        <enumerator name='NL80211_ATTR_KEY_CIPHER' value='9'/>
+        <enumerator name='NL80211_ATTR_KEY_SEQ' value='10'/>
+        <enumerator name='NL80211_ATTR_KEY_DEFAULT' value='11'/>
+        <enumerator name='NL80211_ATTR_BEACON_INTERVAL' value='12'/>
+        <enumerator name='NL80211_ATTR_DTIM_PERIOD' value='13'/>
+        <enumerator name='NL80211_ATTR_BEACON_HEAD' value='14'/>
+        <enumerator name='NL80211_ATTR_BEACON_TAIL' value='15'/>
+        <enumerator name='NL80211_ATTR_STA_AID' value='16'/>
+        <enumerator name='NL80211_ATTR_STA_FLAGS' value='17'/>
+        <enumerator name='NL80211_ATTR_STA_LISTEN_INTERVAL' value='18'/>
+        <enumerator name='NL80211_ATTR_STA_SUPPORTED_RATES' value='19'/>
+        <enumerator name='NL80211_ATTR_STA_VLAN' value='20'/>
+        <enumerator name='NL80211_ATTR_STA_INFO' value='21'/>
+        <enumerator name='NL80211_ATTR_WIPHY_BANDS' value='22'/>
+        <enumerator name='NL80211_ATTR_MNTR_FLAGS' value='23'/>
+        <enumerator name='NL80211_ATTR_MESH_ID' value='24'/>
+        <enumerator name='NL80211_ATTR_STA_PLINK_ACTION' value='25'/>
+        <enumerator name='NL80211_ATTR_MPATH_NEXT_HOP' value='26'/>
+        <enumerator name='NL80211_ATTR_MPATH_INFO' value='27'/>
+        <enumerator name='NL80211_ATTR_BSS_CTS_PROT' value='28'/>
+        <enumerator name='NL80211_ATTR_BSS_SHORT_PREAMBLE' value='29'/>
+        <enumerator name='NL80211_ATTR_BSS_SHORT_SLOT_TIME' value='30'/>
+        <enumerator name='NL80211_ATTR_HT_CAPABILITY' value='31'/>
+        <enumerator name='NL80211_ATTR_SUPPORTED_IFTYPES' value='32'/>
+        <enumerator name='NL80211_ATTR_REG_ALPHA2' value='33'/>
+        <enumerator name='NL80211_ATTR_REG_RULES' value='34'/>
+        <enumerator name='NL80211_ATTR_MESH_CONFIG' value='35'/>
+        <enumerator name='NL80211_ATTR_BSS_BASIC_RATES' value='36'/>
+        <enumerator name='NL80211_ATTR_WIPHY_TXQ_PARAMS' value='37'/>
+        <enumerator name='NL80211_ATTR_WIPHY_FREQ' value='38'/>
+        <enumerator name='NL80211_ATTR_WIPHY_CHANNEL_TYPE' value='39'/>
+        <enumerator name='NL80211_ATTR_KEY_DEFAULT_MGMT' value='40'/>
+        <enumerator name='NL80211_ATTR_MGMT_SUBTYPE' value='41'/>
+        <enumerator name='NL80211_ATTR_IE' value='42'/>
+        <enumerator name='NL80211_ATTR_MAX_NUM_SCAN_SSIDS' value='43'/>
+        <enumerator name='NL80211_ATTR_SCAN_FREQUENCIES' value='44'/>
+        <enumerator name='NL80211_ATTR_SCAN_SSIDS' value='45'/>
+        <enumerator name='NL80211_ATTR_GENERATION' value='46'/>
+        <enumerator name='NL80211_ATTR_BSS' value='47'/>
+        <enumerator name='NL80211_ATTR_REG_INITIATOR' value='48'/>
+        <enumerator name='NL80211_ATTR_REG_TYPE' value='49'/>
+        <enumerator name='NL80211_ATTR_SUPPORTED_COMMANDS' value='50'/>
+        <enumerator name='NL80211_ATTR_FRAME' value='51'/>
+        <enumerator name='NL80211_ATTR_SSID' value='52'/>
+        <enumerator name='NL80211_ATTR_AUTH_TYPE' value='53'/>
+        <enumerator name='NL80211_ATTR_REASON_CODE' value='54'/>
+        <enumerator name='NL80211_ATTR_KEY_TYPE' value='55'/>
+        <enumerator name='NL80211_ATTR_MAX_SCAN_IE_LEN' value='56'/>
+        <enumerator name='NL80211_ATTR_CIPHER_SUITES' value='57'/>
+        <enumerator name='NL80211_ATTR_FREQ_BEFORE' value='58'/>
+        <enumerator name='NL80211_ATTR_FREQ_AFTER' value='59'/>
+        <enumerator name='NL80211_ATTR_FREQ_FIXED' value='60'/>
+        <enumerator name='NL80211_ATTR_WIPHY_RETRY_SHORT' value='61'/>
+        <enumerator name='NL80211_ATTR_WIPHY_RETRY_LONG' value='62'/>
+        <enumerator name='NL80211_ATTR_WIPHY_FRAG_THRESHOLD' value='63'/>
+        <enumerator name='NL80211_ATTR_WIPHY_RTS_THRESHOLD' value='64'/>
+        <enumerator name='NL80211_ATTR_TIMED_OUT' value='65'/>
+        <enumerator name='NL80211_ATTR_USE_MFP' value='66'/>
+        <enumerator name='NL80211_ATTR_STA_FLAGS2' value='67'/>
+        <enumerator name='NL80211_ATTR_CONTROL_PORT' value='68'/>
+        <enumerator name='NL80211_ATTR_TESTDATA' value='69'/>
+        <enumerator name='NL80211_ATTR_PRIVACY' value='70'/>
+        <enumerator name='NL80211_ATTR_DISCONNECTED_BY_AP' value='71'/>
+        <enumerator name='NL80211_ATTR_STATUS_CODE' value='72'/>
+        <enumerator name='NL80211_ATTR_CIPHER_SUITES_PAIRWISE' value='73'/>
+        <enumerator name='NL80211_ATTR_CIPHER_SUITE_GROUP' value='74'/>
+        <enumerator name='NL80211_ATTR_WPA_VERSIONS' value='75'/>
+        <enumerator name='NL80211_ATTR_AKM_SUITES' value='76'/>
+        <enumerator name='NL80211_ATTR_REQ_IE' value='77'/>
+        <enumerator name='NL80211_ATTR_RESP_IE' value='78'/>
+        <enumerator name='NL80211_ATTR_PREV_BSSID' value='79'/>
+        <enumerator name='NL80211_ATTR_KEY' value='80'/>
+        <enumerator name='NL80211_ATTR_KEYS' value='81'/>
+        <enumerator name='NL80211_ATTR_PID' value='82'/>
+        <enumerator name='NL80211_ATTR_4ADDR' value='83'/>
+        <enumerator name='NL80211_ATTR_SURVEY_INFO' value='84'/>
+        <enumerator name='NL80211_ATTR_PMKID' value='85'/>
+        <enumerator name='NL80211_ATTR_MAX_NUM_PMKIDS' value='86'/>
+        <enumerator name='NL80211_ATTR_DURATION' value='87'/>
+        <enumerator name='NL80211_ATTR_COOKIE' value='88'/>
+        <enumerator name='NL80211_ATTR_WIPHY_COVERAGE_CLASS' value='89'/>
+        <enumerator name='NL80211_ATTR_TX_RATES' value='90'/>
+        <enumerator name='NL80211_ATTR_FRAME_MATCH' value='91'/>
+        <enumerator name='NL80211_ATTR_ACK' value='92'/>
+        <enumerator name='NL80211_ATTR_PS_STATE' value='93'/>
+        <enumerator name='NL80211_ATTR_CQM' value='94'/>
+        <enumerator name='NL80211_ATTR_LOCAL_STATE_CHANGE' value='95'/>
+        <enumerator name='NL80211_ATTR_AP_ISOLATE' value='96'/>
+        <enumerator name='NL80211_ATTR_WIPHY_TX_POWER_SETTING' value='97'/>
+        <enumerator name='NL80211_ATTR_WIPHY_TX_POWER_LEVEL' value='98'/>
+        <enumerator name='NL80211_ATTR_TX_FRAME_TYPES' value='99'/>
+        <enumerator name='NL80211_ATTR_RX_FRAME_TYPES' value='100'/>
+        <enumerator name='NL80211_ATTR_FRAME_TYPE' value='101'/>
+        <enumerator name='NL80211_ATTR_CONTROL_PORT_ETHERTYPE' value='102'/>
+        <enumerator name='NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT' value='103'/>
+        <enumerator name='NL80211_ATTR_SUPPORT_IBSS_RSN' value='104'/>
+        <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_TX' value='105'/>
+        <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_RX' value='106'/>
+        <enumerator name='NL80211_ATTR_MCAST_RATE' value='107'/>
+        <enumerator name='NL80211_ATTR_OFFCHANNEL_TX_OK' value='108'/>
+        <enumerator name='NL80211_ATTR_BSS_HT_OPMODE' value='109'/>
+        <enumerator name='NL80211_ATTR_KEY_DEFAULT_TYPES' value='110'/>
+        <enumerator name='NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION' value='111'/>
+        <enumerator name='NL80211_ATTR_MESH_SETUP' value='112'/>
+        <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX' value='113'/>
+        <enumerator name='NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX' value='114'/>
+        <enumerator name='NL80211_ATTR_SUPPORT_MESH_AUTH' value='115'/>
+        <enumerator name='NL80211_ATTR_STA_PLINK_STATE' value='116'/>
+        <enumerator name='NL80211_ATTR_WOWLAN_TRIGGERS' value='117'/>
+        <enumerator name='NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED' value='118'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_INTERVAL' value='119'/>
+        <enumerator name='NL80211_ATTR_INTERFACE_COMBINATIONS' value='120'/>
+        <enumerator name='NL80211_ATTR_SOFTWARE_IFTYPES' value='121'/>
+        <enumerator name='NL80211_ATTR_REKEY_DATA' value='122'/>
+        <enumerator name='NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS' value='123'/>
+        <enumerator name='NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN' value='124'/>
+        <enumerator name='NL80211_ATTR_SCAN_SUPP_RATES' value='125'/>
+        <enumerator name='NL80211_ATTR_HIDDEN_SSID' value='126'/>
+        <enumerator name='NL80211_ATTR_IE_PROBE_RESP' value='127'/>
+        <enumerator name='NL80211_ATTR_IE_ASSOC_RESP' value='128'/>
+        <enumerator name='NL80211_ATTR_STA_WME' value='129'/>
+        <enumerator name='NL80211_ATTR_SUPPORT_AP_UAPSD' value='130'/>
+        <enumerator name='NL80211_ATTR_ROAM_SUPPORT' value='131'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_MATCH' value='132'/>
+        <enumerator name='NL80211_ATTR_MAX_MATCH_SETS' value='133'/>
+        <enumerator name='NL80211_ATTR_PMKSA_CANDIDATE' value='134'/>
+        <enumerator name='NL80211_ATTR_TX_NO_CCK_RATE' value='135'/>
+        <enumerator name='NL80211_ATTR_TDLS_ACTION' value='136'/>
+        <enumerator name='NL80211_ATTR_TDLS_DIALOG_TOKEN' value='137'/>
+        <enumerator name='NL80211_ATTR_TDLS_OPERATION' value='138'/>
+        <enumerator name='NL80211_ATTR_TDLS_SUPPORT' value='139'/>
+        <enumerator name='NL80211_ATTR_TDLS_EXTERNAL_SETUP' value='140'/>
+        <enumerator name='NL80211_ATTR_DEVICE_AP_SME' value='141'/>
+        <enumerator name='NL80211_ATTR_DONT_WAIT_FOR_ACK' value='142'/>
+        <enumerator name='NL80211_ATTR_FEATURE_FLAGS' value='143'/>
+        <enumerator name='NL80211_ATTR_PROBE_RESP_OFFLOAD' value='144'/>
+        <enumerator name='NL80211_ATTR_PROBE_RESP' value='145'/>
+        <enumerator name='NL80211_ATTR_DFS_REGION' value='146'/>
+        <enumerator name='NL80211_ATTR_DISABLE_HT' value='147'/>
+        <enumerator name='NL80211_ATTR_HT_CAPABILITY_MASK' value='148'/>
+        <enumerator name='NL80211_ATTR_NOACK_MAP' value='149'/>
+        <enumerator name='NL80211_ATTR_INACTIVITY_TIMEOUT' value='150'/>
+        <enumerator name='NL80211_ATTR_RX_SIGNAL_DBM' value='151'/>
+        <enumerator name='NL80211_ATTR_BG_SCAN_PERIOD' value='152'/>
+        <enumerator name='NL80211_ATTR_WDEV' value='153'/>
+        <enumerator name='NL80211_ATTR_USER_REG_HINT_TYPE' value='154'/>
+        <enumerator name='NL80211_ATTR_CONN_FAILED_REASON' value='155'/>
+        <enumerator name='NL80211_ATTR_AUTH_DATA' value='156'/>
+        <enumerator name='NL80211_ATTR_VHT_CAPABILITY' value='157'/>
+        <enumerator name='NL80211_ATTR_SCAN_FLAGS' value='158'/>
+        <enumerator name='NL80211_ATTR_CHANNEL_WIDTH' value='159'/>
+        <enumerator name='NL80211_ATTR_CENTER_FREQ1' value='160'/>
+        <enumerator name='NL80211_ATTR_CENTER_FREQ2' value='161'/>
+        <enumerator name='NL80211_ATTR_P2P_CTWINDOW' value='162'/>
+        <enumerator name='NL80211_ATTR_P2P_OPPPS' value='163'/>
+        <enumerator name='NL80211_ATTR_LOCAL_MESH_POWER_MODE' value='164'/>
+        <enumerator name='NL80211_ATTR_ACL_POLICY' value='165'/>
+        <enumerator name='NL80211_ATTR_MAC_ADDRS' value='166'/>
+        <enumerator name='NL80211_ATTR_MAC_ACL_MAX' value='167'/>
+        <enumerator name='NL80211_ATTR_RADAR_EVENT' value='168'/>
+        <enumerator name='NL80211_ATTR_EXT_CAPA' value='169'/>
+        <enumerator name='NL80211_ATTR_EXT_CAPA_MASK' value='170'/>
+        <enumerator name='NL80211_ATTR_STA_CAPABILITY' value='171'/>
+        <enumerator name='NL80211_ATTR_STA_EXT_CAPABILITY' value='172'/>
+        <enumerator name='NL80211_ATTR_PROTOCOL_FEATURES' value='173'/>
+        <enumerator name='NL80211_ATTR_SPLIT_WIPHY_DUMP' value='174'/>
+        <enumerator name='NL80211_ATTR_DISABLE_VHT' value='175'/>
+        <enumerator name='NL80211_ATTR_VHT_CAPABILITY_MASK' value='176'/>
+        <enumerator name='NL80211_ATTR_MDID' value='177'/>
+        <enumerator name='NL80211_ATTR_IE_RIC' value='178'/>
+        <enumerator name='NL80211_ATTR_CRIT_PROT_ID' value='179'/>
+        <enumerator name='NL80211_ATTR_MAX_CRIT_PROT_DURATION' value='180'/>
+        <enumerator name='NL80211_ATTR_PEER_AID' value='181'/>
+        <enumerator name='NL80211_ATTR_COALESCE_RULE' value='182'/>
+        <enumerator name='NL80211_ATTR_CH_SWITCH_COUNT' value='183'/>
+        <enumerator name='NL80211_ATTR_CH_SWITCH_BLOCK_TX' value='184'/>
+        <enumerator name='NL80211_ATTR_CSA_IES' value='185'/>
+        <enumerator name='NL80211_ATTR_CNTDWN_OFFS_BEACON' value='186'/>
+        <enumerator name='NL80211_ATTR_CNTDWN_OFFS_PRESP' value='187'/>
+        <enumerator name='NL80211_ATTR_RXMGMT_FLAGS' value='188'/>
+        <enumerator name='NL80211_ATTR_STA_SUPPORTED_CHANNELS' value='189'/>
+        <enumerator name='NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES' value='190'/>
+        <enumerator name='NL80211_ATTR_HANDLE_DFS' value='191'/>
+        <enumerator name='NL80211_ATTR_SUPPORT_5_MHZ' value='192'/>
+        <enumerator name='NL80211_ATTR_SUPPORT_10_MHZ' value='193'/>
+        <enumerator name='NL80211_ATTR_OPMODE_NOTIF' value='194'/>
+        <enumerator name='NL80211_ATTR_VENDOR_ID' value='195'/>
+        <enumerator name='NL80211_ATTR_VENDOR_SUBCMD' value='196'/>
+        <enumerator name='NL80211_ATTR_VENDOR_DATA' value='197'/>
+        <enumerator name='NL80211_ATTR_VENDOR_EVENTS' value='198'/>
+        <enumerator name='NL80211_ATTR_QOS_MAP' value='199'/>
+        <enumerator name='NL80211_ATTR_MAC_HINT' value='200'/>
+        <enumerator name='NL80211_ATTR_WIPHY_FREQ_HINT' value='201'/>
+        <enumerator name='NL80211_ATTR_MAX_AP_ASSOC_STA' value='202'/>
+        <enumerator name='NL80211_ATTR_TDLS_PEER_CAPABILITY' value='203'/>
+        <enumerator name='NL80211_ATTR_SOCKET_OWNER' value='204'/>
+        <enumerator name='NL80211_ATTR_CSA_C_OFFSETS_TX' value='205'/>
+        <enumerator name='NL80211_ATTR_MAX_CSA_COUNTERS' value='206'/>
+        <enumerator name='NL80211_ATTR_TDLS_INITIATOR' value='207'/>
+        <enumerator name='NL80211_ATTR_USE_RRM' value='208'/>
+        <enumerator name='NL80211_ATTR_WIPHY_DYN_ACK' value='209'/>
+        <enumerator name='NL80211_ATTR_TSID' value='210'/>
+        <enumerator name='NL80211_ATTR_USER_PRIO' value='211'/>
+        <enumerator name='NL80211_ATTR_ADMITTED_TIME' value='212'/>
+        <enumerator name='NL80211_ATTR_SMPS_MODE' value='213'/>
+        <enumerator name='NL80211_ATTR_OPER_CLASS' value='214'/>
+        <enumerator name='NL80211_ATTR_MAC_MASK' value='215'/>
+        <enumerator name='NL80211_ATTR_WIPHY_SELF_MANAGED_REG' value='216'/>
+        <enumerator name='NL80211_ATTR_EXT_FEATURES' value='217'/>
+        <enumerator name='NL80211_ATTR_SURVEY_RADIO_STATS' value='218'/>
+        <enumerator name='NL80211_ATTR_NETNS_FD' value='219'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_DELAY' value='220'/>
+        <enumerator name='NL80211_ATTR_REG_INDOOR' value='221'/>
+        <enumerator name='NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS' value='222'/>
+        <enumerator name='NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL' value='223'/>
+        <enumerator name='NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS' value='224'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_PLANS' value='225'/>
+        <enumerator name='NL80211_ATTR_PBSS' value='226'/>
+        <enumerator name='NL80211_ATTR_BSS_SELECT' value='227'/>
+        <enumerator name='NL80211_ATTR_STA_SUPPORT_P2P_PS' value='228'/>
+        <enumerator name='NL80211_ATTR_PAD' value='229'/>
+        <enumerator name='NL80211_ATTR_IFTYPE_EXT_CAPA' value='230'/>
+        <enumerator name='NL80211_ATTR_MU_MIMO_GROUP_DATA' value='231'/>
+        <enumerator name='NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR' value='232'/>
+        <enumerator name='NL80211_ATTR_SCAN_START_TIME_TSF' value='233'/>
+        <enumerator name='NL80211_ATTR_SCAN_START_TIME_TSF_BSSID' value='234'/>
+        <enumerator name='NL80211_ATTR_MEASUREMENT_DURATION' value='235'/>
+        <enumerator name='NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY' value='236'/>
+        <enumerator name='NL80211_ATTR_MESH_PEER_AID' value='237'/>
+        <enumerator name='NL80211_ATTR_NAN_MASTER_PREF' value='238'/>
+        <enumerator name='NL80211_ATTR_BANDS' value='239'/>
+        <enumerator name='NL80211_ATTR_NAN_FUNC' value='240'/>
+        <enumerator name='NL80211_ATTR_NAN_MATCH' value='241'/>
+        <enumerator name='NL80211_ATTR_FILS_KEK' value='242'/>
+        <enumerator name='NL80211_ATTR_FILS_NONCES' value='243'/>
+        <enumerator name='NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED' value='244'/>
+        <enumerator name='NL80211_ATTR_BSSID' value='245'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI' value='246'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST' value='247'/>
+        <enumerator name='NL80211_ATTR_TIMEOUT_REASON' value='248'/>
+        <enumerator name='NL80211_ATTR_FILS_ERP_USERNAME' value='249'/>
+        <enumerator name='NL80211_ATTR_FILS_ERP_REALM' value='250'/>
+        <enumerator name='NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM' value='251'/>
+        <enumerator name='NL80211_ATTR_FILS_ERP_RRK' value='252'/>
+        <enumerator name='NL80211_ATTR_FILS_CACHE_ID' value='253'/>
+        <enumerator name='NL80211_ATTR_PMK' value='254'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_MULTI' value='255'/>
+        <enumerator name='NL80211_ATTR_SCHED_SCAN_MAX_REQS' value='256'/>
+        <enumerator name='NL80211_ATTR_WANT_1X_4WAY_HS' value='257'/>
+        <enumerator name='NL80211_ATTR_PMKR0_NAME' value='258'/>
+        <enumerator name='NL80211_ATTR_PORT_AUTHORIZED' value='259'/>
+        <enumerator name='NL80211_ATTR_EXTERNAL_AUTH_ACTION' value='260'/>
+        <enumerator name='NL80211_ATTR_EXTERNAL_AUTH_SUPPORT' value='261'/>
+        <enumerator name='NL80211_ATTR_NSS' value='262'/>
+        <enumerator name='NL80211_ATTR_ACK_SIGNAL' value='263'/>
+        <enumerator name='NL80211_ATTR_CONTROL_PORT_OVER_NL80211' value='264'/>
+        <enumerator name='NL80211_ATTR_TXQ_STATS' value='265'/>
+        <enumerator name='NL80211_ATTR_TXQ_LIMIT' value='266'/>
+        <enumerator name='NL80211_ATTR_TXQ_MEMORY_LIMIT' value='267'/>
+        <enumerator name='NL80211_ATTR_TXQ_QUANTUM' value='268'/>
+        <enumerator name='NL80211_ATTR_HE_CAPABILITY' value='269'/>
+        <enumerator name='NL80211_ATTR_FTM_RESPONDER' value='270'/>
+        <enumerator name='NL80211_ATTR_FTM_RESPONDER_STATS' value='271'/>
+        <enumerator name='NL80211_ATTR_TIMEOUT' value='272'/>
+        <enumerator name='NL80211_ATTR_PEER_MEASUREMENTS' value='273'/>
+        <enumerator name='NL80211_ATTR_AIRTIME_WEIGHT' value='274'/>
+        <enumerator name='NL80211_ATTR_STA_TX_POWER_SETTING' value='275'/>
+        <enumerator name='NL80211_ATTR_STA_TX_POWER' value='276'/>
+        <enumerator name='NL80211_ATTR_SAE_PASSWORD' value='277'/>
+        <enumerator name='NL80211_ATTR_TWT_RESPONDER' value='278'/>
+        <enumerator name='NL80211_ATTR_HE_OBSS_PD' value='279'/>
+        <enumerator name='NL80211_ATTR_WIPHY_EDMG_CHANNELS' value='280'/>
+        <enumerator name='NL80211_ATTR_WIPHY_EDMG_BW_CONFIG' value='281'/>
+        <enumerator name='NL80211_ATTR_VLAN_ID' value='282'/>
+        <enumerator name='NL80211_ATTR_HE_BSS_COLOR' value='283'/>
+        <enumerator name='NL80211_ATTR_IFTYPE_AKM_SUITES' value='284'/>
+        <enumerator name='NL80211_ATTR_TID_CONFIG' value='285'/>
+        <enumerator name='NL80211_ATTR_CONTROL_PORT_NO_PREAUTH' value='286'/>
+        <enumerator name='NL80211_ATTR_PMK_LIFETIME' value='287'/>
+        <enumerator name='NL80211_ATTR_PMK_REAUTH_THRESHOLD' value='288'/>
+        <enumerator name='NL80211_ATTR_RECEIVE_MULTICAST' value='289'/>
+        <enumerator name='NL80211_ATTR_WIPHY_FREQ_OFFSET' value='290'/>
+        <enumerator name='NL80211_ATTR_CENTER_FREQ1_OFFSET' value='291'/>
+        <enumerator name='NL80211_ATTR_SCAN_FREQ_KHZ' value='292'/>
+        <enumerator name='NL80211_ATTR_HE_6GHZ_CAPABILITY' value='293'/>
+        <enumerator name='NL80211_ATTR_FILS_DISCOVERY' value='294'/>
+        <enumerator name='NL80211_ATTR_UNSOL_BCAST_PROBE_RESP' value='295'/>
+        <enumerator name='NL80211_ATTR_S1G_CAPABILITY' value='296'/>
+        <enumerator name='NL80211_ATTR_S1G_CAPABILITY_MASK' value='297'/>
+        <enumerator name='NL80211_ATTR_SAE_PWE' value='298'/>
+        <enumerator name='__NL80211_ATTR_AFTER_LAST' value='299'/>
+        <enumerator name='NUM_NL80211_ATTR' value='299'/>
+        <enumerator name='NL80211_ATTR_MAX' value='298'/>
+      </enum-decl>
+      <pointer-type-def type-id='47a8f7d6' size-in-bits='64' id='320c9cb0'/>
+      <pointer-type-def type-id='55eaf925' size-in-bits='64' id='3213e875'/>
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+        <parameter type-id='95e97e5e' name='preferred_nid' filepath='mm/page_alloc.c' line='5123' column='1'/>
+        <parameter type-id='f461c050' name='nodemask' filepath='mm/page_alloc.c' line='5124' column='1'/>
+        <return type-id='02f11ed4'/>
+      </function-decl>
+      <function-decl name='__alloc_percpu' mangled-name='__alloc_percpu' filepath='mm/percpu.c' line='1904' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_percpu'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/percpu.c' line='1904' column='1'/>
+        <parameter type-id='b59d7dce' name='align' filepath='mm/percpu.c' line='1904' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__alloc_percpu_gfp' mangled-name='__alloc_percpu_gfp' filepath='mm/percpu.c' line='1891' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_percpu_gfp'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/percpu.c' line='1891' column='1'/>
+        <parameter type-id='b59d7dce' name='align' filepath='mm/percpu.c' line='1891' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='mm/percpu.c' line='1891' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__alloc_skb' mangled-name='__alloc_skb' filepath='net/core/skbuff.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_skb'>
+        <parameter type-id='f0981eeb' name='size' filepath='net/core/skbuff.c' line='183' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='183' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/core/skbuff.c' line='184' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='net/core/skbuff.c' line='184' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__bitmap_andnot' mangled-name='__bitmap_andnot' filepath='lib/bitmap.c' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__bitmap_andnot'>
+        <parameter type-id='1d2c2b85' name='dst' filepath='lib/bitmap.c' line='276' column='1'/>
+        <parameter type-id='f9b37274' name='bitmap1' filepath='lib/bitmap.c' line='276' column='1'/>
+        <parameter type-id='f9b37274' name='bitmap2' filepath='lib/bitmap.c' line='277' column='1'/>
+        <parameter type-id='f0981eeb' name='bits' filepath='lib/bitmap.c' line='277' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__bitmap_clear' mangled-name='__bitmap_clear' filepath='lib/bitmap.c' line='370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__bitmap_clear'>
+        <parameter type-id='1d2c2b85' name='map' filepath='lib/bitmap.c' line='370' column='1'/>
+        <parameter type-id='f0981eeb' name='start' filepath='lib/bitmap.c' line='370' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='lib/bitmap.c' line='370' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__bitmap_equal' mangled-name='__bitmap_equal' filepath='lib/bitmap.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__bitmap_equal'>
+        <parameter type-id='f9b37274' name='bitmap1' filepath='lib/bitmap.c' line='46' column='1'/>
+        <parameter type-id='f9b37274' name='bitmap2' filepath='lib/bitmap.c' line='47' column='1'/>
+        <parameter type-id='f0981eeb' name='bits' filepath='lib/bitmap.c' line='47' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__bitmap_or' mangled-name='__bitmap_or' filepath='lib/bitmap.c' line='254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__bitmap_or'>
+        <parameter type-id='1d2c2b85' name='dst' filepath='lib/bitmap.c' line='254' column='1'/>
+        <parameter type-id='f9b37274' name='bitmap1' filepath='lib/bitmap.c' line='254' column='1'/>
+        <parameter type-id='f9b37274' name='bitmap2' filepath='lib/bitmap.c' line='255' column='1'/>
+        <parameter type-id='f0981eeb' name='bits' filepath='lib/bitmap.c' line='255' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__bitmap_set' mangled-name='__bitmap_set' filepath='lib/bitmap.c' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__bitmap_set'>
+        <parameter type-id='1d2c2b85' name='map' filepath='lib/bitmap.c' line='349' column='1'/>
+        <parameter type-id='f0981eeb' name='start' filepath='lib/bitmap.c' line='349' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='lib/bitmap.c' line='349' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__bitmap_weight' mangled-name='__bitmap_weight' filepath='lib/bitmap.c' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__bitmap_weight'>
+        <parameter type-id='f9b37274' name='bitmap' filepath='lib/bitmap.c' line='334' column='1'/>
+        <parameter type-id='f0981eeb' name='bits' filepath='lib/bitmap.c' line='334' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__blk_mq_end_request' mangled-name='__blk_mq_end_request' filepath='block/blk-mq.c' line='539' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__blk_mq_end_request'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='539' column='1'/>
+        <parameter type-id='f4e2facd' name='error' filepath='block/blk-mq.c' line='539' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__blk_rq_map_sg' mangled-name='__blk_rq_map_sg' filepath='block/blk-merge.c' line='522' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__blk_rq_map_sg'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-merge.c' line='522' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-merge.c' line='522' column='1'/>
+        <parameter type-id='bf3ef905' name='sglist' filepath='block/blk-merge.c' line='523' column='1'/>
+        <parameter type-id='3f2244fd' name='last_sg' filepath='block/blk-merge.c' line='523' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__cfg80211_alloc_event_skb' mangled-name='__cfg80211_alloc_event_skb' filepath='net/wireless/nl80211.c' line='10277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_event_skb'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='10277' column='1'/>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='10278' column='1'/>
+        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='10279' column='1'/>
+        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='10280' column='1'/>
+        <parameter type-id='f0981eeb' name='portid' filepath='net/wireless/nl80211.c' line='10281' column='1'/>
+        <parameter type-id='95e97e5e' name='vendor_event_idx' filepath='net/wireless/nl80211.c' line='10282' column='1'/>
+        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='10283' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10283' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__cfg80211_alloc_reply_skb' mangled-name='__cfg80211_alloc_reply_skb' filepath='net/wireless/nl80211.c' line='13799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_reply_skb'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='13799' column='1'/>
+        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='13800' column='1'/>
+        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='13801' column='1'/>
+        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='13802' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__cfg80211_send_event_skb' mangled-name='__cfg80211_send_event_skb' filepath='net/wireless/nl80211.c' line='10310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_send_event_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='10310' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10310' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__cfi_slowpath' mangled-name='__cfi_slowpath' filepath='kernel/cfi.c' line='319' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfi_slowpath'>
+        <parameter type-id='9c313c2d' name='id' filepath='kernel/cfi.c' line='319' column='1'/>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='kernel/cfi.c' line='319' column='1'/>
+        <parameter type-id='eaa32e2f' name='diag' filepath='kernel/cfi.c' line='319' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__check_object_size' mangled-name='__check_object_size' filepath='mm/usercopy.c' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__check_object_size'>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='mm/usercopy.c' line='256' column='1'/>
+        <parameter type-id='7359adad' name='n' filepath='mm/usercopy.c' line='256' column='1'/>
+        <parameter type-id='b50a4934' name='to_user' filepath='mm/usercopy.c' line='256' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__class_create' mangled-name='__class_create' filepath='drivers/base/class.c' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__class_create'>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/base/class.c' line='226' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/class.c' line='226' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='drivers/base/class.c' line='227' column='1'/>
+        <return type-id='67aca04f'/>
+      </function-decl>
+      <function-decl name='__class_register' mangled-name='__class_register' filepath='drivers/base/class.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__class_register'>
+        <parameter type-id='67aca04f' name='cls' filepath='drivers/base/class.c' line='153' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='drivers/base/class.c' line='153' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__clk_determine_rate' mangled-name='__clk_determine_rate' filepath='drivers/clk/clk.c' line='1428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_determine_rate'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='1428' column='1'/>
+        <parameter type-id='23a0ad0a' name='req' filepath='drivers/clk/clk.c' line='1428' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__clk_get_hw' mangled-name='__clk_get_hw' filepath='drivers/clk/clk.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_get_hw'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='278' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='__clk_get_name' mangled-name='__clk_get_name' filepath='drivers/clk/clk.c' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_get_name'>
+        <parameter type-id='10f66866' name='clk' filepath='drivers/clk/clk.c' line='266' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='__clk_hw_register_divider' mangled-name='__clk_hw_register_divider' filepath='drivers/clk/clk-divider.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_hw_register_divider'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-divider.c' line='466' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk-divider.c' line='467' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk-divider.c' line='467' column='1'/>
+        <parameter type-id='80f4b756' name='parent_name' filepath='drivers/clk/clk-divider.c' line='468' column='1'/>
+        <parameter type-id='9e6d4b4e' name='parent_hw' filepath='drivers/clk/clk-divider.c' line='468' column='1'/>
+        <parameter type-id='4cdbecf4' name='parent_data' filepath='drivers/clk/clk-divider.c' line='469' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-divider.c' line='469' column='1'/>
+        <parameter type-id='eaa32e2f' name='reg' filepath='drivers/clk/clk-divider.c' line='470' column='1'/>
+        <parameter type-id='f9b06939' name='shift' filepath='drivers/clk/clk-divider.c' line='470' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='drivers/clk/clk-divider.c' line='470' column='1'/>
+        <parameter type-id='f9b06939' name='clk_divider_flags' filepath='drivers/clk/clk-divider.c' line='470' column='1'/>
+        <parameter type-id='caf2596f' name='table' filepath='drivers/clk/clk-divider.c' line='471' column='1'/>
+        <parameter type-id='cff2d845' name='lock' filepath='drivers/clk/clk-divider.c' line='471' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='__clk_hw_register_mux' mangled-name='__clk_hw_register_mux' filepath='drivers/clk/clk-mux.c' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_hw_register_mux'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-mux.c' line='148' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk-mux.c' line='148' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk-mux.c' line='149' column='1'/>
+        <parameter type-id='f9b06939' name='num_parents' filepath='drivers/clk/clk-mux.c' line='149' column='1'/>
+        <parameter type-id='13956559' name='parent_names' filepath='drivers/clk/clk-mux.c' line='150' column='1'/>
+        <parameter type-id='ca0dae6c' name='parent_hws' filepath='drivers/clk/clk-mux.c' line='151' column='1'/>
+        <parameter type-id='4cdbecf4' name='parent_data' filepath='drivers/clk/clk-mux.c' line='152' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-mux.c' line='153' column='1'/>
+        <parameter type-id='eaa32e2f' name='reg' filepath='drivers/clk/clk-mux.c' line='153' column='1'/>
+        <parameter type-id='f9b06939' name='shift' filepath='drivers/clk/clk-mux.c' line='153' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='drivers/clk/clk-mux.c' line='153' column='1'/>
+        <parameter type-id='f9b06939' name='clk_mux_flags' filepath='drivers/clk/clk-mux.c' line='154' column='1'/>
+        <parameter type-id='f9409001' name='table' filepath='drivers/clk/clk-mux.c' line='154' column='1'/>
+        <parameter type-id='cff2d845' name='lock' filepath='drivers/clk/clk-mux.c' line='154' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='__clk_is_enabled' mangled-name='__clk_is_enabled' filepath='drivers/clk/clk.c' line='529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_is_enabled'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='529' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__clk_mux_determine_rate_closest' mangled-name='__clk_mux_determine_rate_closest' filepath='drivers/clk/clk.c' line='662' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clk_mux_determine_rate_closest'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='662' column='1'/>
+        <parameter type-id='23a0ad0a' name='req' filepath='drivers/clk/clk.c' line='663' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__clocksource_register_scale' mangled-name='__clocksource_register_scale' filepath='kernel/time/clocksource.c' line='1086' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__clocksource_register_scale'>
+        <parameter type-id='4dfe71de' name='cs' filepath='kernel/time/clocksource.c' line='1086' column='1'/>
+        <parameter type-id='19c2251e' name='scale' filepath='kernel/time/clocksource.c' line='1086' column='1'/>
+        <parameter type-id='19c2251e' name='freq' filepath='kernel/time/clocksource.c' line='1086' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__const_udelay' mangled-name='__const_udelay' filepath='arch/arm64/lib/delay.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__const_udelay'>
+        <parameter type-id='7359adad' name='xloops' filepath='arch/arm64/lib/delay.c' line='43' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='__cpu_active_mask' type-id='1354385d' mangled-name='__cpu_active_mask' visibility='default' filepath='kernel/cpu.c' line='2772' column='1' elf-symbol-id='__cpu_active_mask'/>
+      <var-decl name='__cpu_online_mask' type-id='1354385d' mangled-name='__cpu_online_mask' visibility='default' filepath='kernel/cpu.c' line='2766' column='1' elf-symbol-id='__cpu_online_mask'/>
+      <var-decl name='__cpu_possible_mask' type-id='1354385d' mangled-name='__cpu_possible_mask' visibility='default' filepath='kernel/cpu.c' line='2762' column='1' elf-symbol-id='__cpu_possible_mask'/>
+      <var-decl name='__cpu_present_mask' type-id='1354385d' mangled-name='__cpu_present_mask' visibility='default' filepath='kernel/cpu.c' line='2769' column='1' elf-symbol-id='__cpu_present_mask'/>
+      <function-decl name='__cpufreq_driver_target' mangled-name='__cpufreq_driver_target' filepath='drivers/cpufreq/cpufreq.c' line='2206' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpufreq_driver_target'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='2206' column='1'/>
+        <parameter type-id='f0981eeb' name='target_freq' filepath='drivers/cpufreq/cpufreq.c' line='2207' column='1'/>
+        <parameter type-id='f0981eeb' name='relation' filepath='drivers/cpufreq/cpufreq.c' line='2208' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__cpuhp_remove_state' mangled-name='__cpuhp_remove_state' filepath='kernel/cpu.c' line='2370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_remove_state'>
+        <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='2370' column='1'/>
+        <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='2370' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__cpuhp_setup_state' mangled-name='__cpuhp_setup_state' filepath='kernel/cpu.c' line='2268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_setup_state'>
+        <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='2268' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/cpu.c' line='2269' column='1'/>
+        <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='2269' column='1'/>
+        <parameter type-id='f02a5e83' name='startup' filepath='kernel/cpu.c' line='2270' column='1'/>
+        <parameter type-id='f02a5e83' name='teardown' filepath='kernel/cpu.c' line='2271' column='1'/>
+        <parameter type-id='b50a4934' name='multi_instance' filepath='kernel/cpu.c' line='2272' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__cpuhp_setup_state_cpuslocked' mangled-name='__cpuhp_setup_state_cpuslocked' filepath='kernel/cpu.c' line='2209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_setup_state_cpuslocked'>
+        <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='2209' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/cpu.c' line='2210' column='1'/>
+        <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='2210' column='1'/>
+        <parameter type-id='f02a5e83' name='startup' filepath='kernel/cpu.c' line='2211' column='1'/>
+        <parameter type-id='f02a5e83' name='teardown' filepath='kernel/cpu.c' line='2212' column='1'/>
+        <parameter type-id='b50a4934' name='multi_instance' filepath='kernel/cpu.c' line='2213' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__cpuhp_state_add_instance' mangled-name='__cpuhp_state_add_instance' filepath='kernel/cpu.c' line='2180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_state_add_instance'>
+        <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='2180' column='1'/>
+        <parameter type-id='08cbad52' name='node' filepath='kernel/cpu.c' line='2180' column='1'/>
+        <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='2181' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__cpuhp_state_remove_instance' mangled-name='__cpuhp_state_remove_instance' filepath='kernel/cpu.c' line='2284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cpuhp_state_remove_instance'>
+        <parameter type-id='245a0e38' name='state' filepath='kernel/cpu.c' line='2284' column='1'/>
+        <parameter type-id='08cbad52' name='node' filepath='kernel/cpu.c' line='2285' column='1'/>
+        <parameter type-id='b50a4934' name='invoke' filepath='kernel/cpu.c' line='2285' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__crypto_memneq' mangled-name='__crypto_memneq' filepath='crypto/memneq.c' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__crypto_memneq'>
+        <parameter type-id='eaa32e2f' name='a' filepath='crypto/memneq.c' line='156' column='1'/>
+        <parameter type-id='eaa32e2f' name='b' filepath='crypto/memneq.c' line='156' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='crypto/memneq.c' line='157' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='__dev_get_by_index' mangled-name='__dev_get_by_index' filepath='net/core/dev.c' line='935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dev_get_by_index'>
+        <parameter type-id='a2bff676' name='net' filepath='net/core/dev.c' line='935' column='1'/>
+        <parameter type-id='95e97e5e' name='ifindex' filepath='net/core/dev.c' line='935' column='1'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
+      <function-decl name='__dev_kfree_skb_any' mangled-name='__dev_kfree_skb_any' filepath='net/core/dev.c' line='3125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dev_kfree_skb_any'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='3125' column='1'/>
+        <parameter type-id='1f17c6b4' name='reason' filepath='net/core/dev.c' line='3125' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__devm_drm_dev_alloc' mangled-name='__devm_drm_dev_alloc' filepath='drivers/gpu/drm/drm_drv.c' line='684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_drm_dev_alloc'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/gpu/drm/drm_drv.c' line='684' column='1'/>
+        <parameter type-id='1d52bc4d' name='driver' filepath='drivers/gpu/drm/drm_drv.c' line='684' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_drv.c' line='685' column='1'/>
+        <parameter type-id='b59d7dce' name='offset' filepath='drivers/gpu/drm/drm_drv.c' line='685' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__devm_iio_device_register' mangled-name='__devm_iio_device_register' filepath='drivers/iio/industrialio-core.c' line='1823' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_iio_device_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iio/industrialio-core.c' line='1823' column='1'/>
+        <parameter type-id='226853d2' name='indio_dev' filepath='drivers/iio/industrialio-core.c' line='1823' column='1'/>
+        <parameter type-id='2730d015' name='this_mod' filepath='drivers/iio/industrialio-core.c' line='1824' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__devm_of_phy_provider_register' mangled-name='__devm_of_phy_provider_register' filepath='drivers/phy/phy-core.c' line='1075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_of_phy_provider_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/phy/phy-core.c' line='1075' column='1'/>
+        <parameter type-id='9a537bbe' name='children' filepath='drivers/phy/phy-core.c' line='1076' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/phy/phy-core.c' line='1076' column='1'/>
+        <parameter type-id='df697557' name='of_xlate' filepath='drivers/phy/phy-core.c' line='1077' column='1'/>
+        <return type-id='3608d096'/>
+      </function-decl>
+      <function-decl name='__devm_regmap_init' mangled-name='__devm_regmap_init' filepath='drivers/base/regmap/regmap.c' line='1211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_regmap_init'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap.c' line='1211' column='1'/>
+        <parameter type-id='00e96299' name='bus' filepath='drivers/base/regmap/regmap.c' line='1212' column='1'/>
+        <parameter type-id='eaa32e2f' name='bus_context' filepath='drivers/base/regmap/regmap.c' line='1213' column='1'/>
+        <parameter type-id='9d19d4a7' name='config' filepath='drivers/base/regmap/regmap.c' line='1214' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/base/regmap/regmap.c' line='1215' column='1'/>
+        <parameter type-id='80f4b756' name='lock_name' filepath='drivers/base/regmap/regmap.c' line='1216' column='1'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='__devm_regmap_init_i2c' mangled-name='__devm_regmap_init_i2c' filepath='drivers/base/regmap/regmap-i2c.c' line='353' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_regmap_init_i2c'>
+        <parameter type-id='3e31633b' name='i2c' filepath='drivers/base/regmap/regmap-i2c.c' line='353' column='1'/>
+        <parameter type-id='9d19d4a7' name='config' filepath='drivers/base/regmap/regmap-i2c.c' line='354' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/base/regmap/regmap-i2c.c' line='355' column='1'/>
+        <parameter type-id='80f4b756' name='lock_name' filepath='drivers/base/regmap/regmap-i2c.c' line='356' column='1'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='__devm_regmap_init_mmio_clk' mangled-name='__devm_regmap_init_mmio_clk' filepath='drivers/base/regmap/regmap-mmio.c' line='339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_regmap_init_mmio_clk'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap-mmio.c' line='339' column='1'/>
+        <parameter type-id='80f4b756' name='clk_id' filepath='drivers/base/regmap/regmap-mmio.c' line='340' column='1'/>
+        <parameter type-id='eaa32e2f' name='regs' filepath='drivers/base/regmap/regmap-mmio.c' line='341' column='1'/>
+        <parameter type-id='9d19d4a7' name='config' filepath='drivers/base/regmap/regmap-mmio.c' line='342' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/base/regmap/regmap-mmio.c' line='343' column='1'/>
+        <parameter type-id='80f4b756' name='lock_name' filepath='drivers/base/regmap/regmap-mmio.c' line='344' column='1'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='__devm_regmap_init_spi' mangled-name='__devm_regmap_init_spi' filepath='drivers/base/regmap/regmap-spi.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_regmap_init_spi'>
+        <parameter type-id='e90f4666' name='spi' filepath='drivers/base/regmap/regmap-spi.c' line='122' column='1'/>
+        <parameter type-id='9d19d4a7' name='config' filepath='drivers/base/regmap/regmap-spi.c' line='123' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/base/regmap/regmap-spi.c' line='124' column='1'/>
+        <parameter type-id='80f4b756' name='lock_name' filepath='drivers/base/regmap/regmap-spi.c' line='125' column='1'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='__devm_request_region' mangled-name='__devm_request_region' filepath='kernel/resource.c' line='1520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_request_region'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/resource.c' line='1520' column='1'/>
+        <parameter type-id='c9d64c0d' name='parent' filepath='kernel/resource.c' line='1520' column='1'/>
+        <parameter type-id='acc63fdf' name='start' filepath='kernel/resource.c' line='1521' column='1'/>
+        <parameter type-id='acc63fdf' name='n' filepath='kernel/resource.c' line='1521' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/resource.c' line='1521' column='1'/>
+        <return type-id='c9d64c0d'/>
+      </function-decl>
+      <function-decl name='__devm_reset_control_get' mangled-name='__devm_reset_control_get' filepath='drivers/reset/core.c' line='783' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_reset_control_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/reset/core.c' line='783' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/reset/core.c' line='784' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/reset/core.c' line='784' column='1'/>
+        <parameter type-id='b50a4934' name='shared' filepath='drivers/reset/core.c' line='784' column='1'/>
+        <parameter type-id='b50a4934' name='optional' filepath='drivers/reset/core.c' line='785' column='1'/>
+        <parameter type-id='b50a4934' name='acquired' filepath='drivers/reset/core.c' line='785' column='1'/>
+        <return type-id='9f9b8114'/>
+      </function-decl>
+      <function-decl name='__devm_spi_alloc_controller' mangled-name='__devm_spi_alloc_controller' filepath='drivers/spi/spi.c' line='2490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__devm_spi_alloc_controller'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/spi/spi.c' line='2490' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='drivers/spi/spi.c' line='2491' column='1'/>
+        <parameter type-id='b50a4934' name='slave' filepath='drivers/spi/spi.c' line='2492' column='1'/>
+        <return type-id='f22e4524'/>
+      </function-decl>
+      <function-decl name='__dma_request_channel' mangled-name='__dma_request_channel' filepath='drivers/dma/dmaengine.c' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dma_request_channel'>
+        <parameter type-id='d2b9f7d5' name='mask' filepath='drivers/dma/dmaengine.c' line='755' column='1'/>
+        <parameter type-id='55f53546' name='fn' filepath='drivers/dma/dmaengine.c' line='756' column='1'/>
+        <parameter type-id='eaa32e2f' name='fn_param' filepath='drivers/dma/dmaengine.c' line='756' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/dma/dmaengine.c' line='757' column='1'/>
+        <return type-id='27f3f5d8'/>
+      </function-decl>
+      <function-decl name='__do_once_done' mangled-name='__do_once_done' filepath='lib/once.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__do_once_done'>
+        <parameter type-id='d8e6b335' name='done' filepath='lib/once.c' line='60' column='1'/>
+        <parameter type-id='ac6963b2' name='once_key' filepath='lib/once.c' line='60' column='1'/>
+        <parameter type-id='1d2c2b85' name='flags' filepath='lib/once.c' line='61' column='1'/>
+        <parameter type-id='2730d015' name='mod' filepath='lib/once.c' line='61' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__do_once_start' mangled-name='__do_once_start' filepath='lib/once.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__do_once_start'>
+        <parameter type-id='d8e6b335' name='done' filepath='lib/once.c' line='42' column='1'/>
+        <parameter type-id='1d2c2b85' name='flags' filepath='lib/once.c' line='42' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_connector_destroy_state' mangled-name='__drm_atomic_helper_connector_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_connector_destroy_state'>
+        <parameter type-id='249ef586' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='514' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_connector_duplicate_state' mangled-name='__drm_atomic_helper_connector_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_connector_duplicate_state'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='466' column='1'/>
+        <parameter type-id='249ef586' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='467' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_crtc_destroy_state' mangled-name='__drm_atomic_helper_crtc_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_crtc_destroy_state'>
+        <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='191' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_crtc_duplicate_state' mangled-name='__drm_atomic_helper_crtc_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_crtc_duplicate_state'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='131' column='1'/>
+        <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='132' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_crtc_reset' mangled-name='__drm_atomic_helper_crtc_reset' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_crtc_reset'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='91' column='1'/>
+        <parameter type-id='35078cb9' name='crtc_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='92' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_plane_destroy_state' mangled-name='__drm_atomic_helper_plane_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='348' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_plane_destroy_state'>
+        <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='348' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_plane_duplicate_state' mangled-name='__drm_atomic_helper_plane_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='303' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_plane_duplicate_state'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='303' column='1'/>
+        <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='304' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_helper_private_obj_duplicate_state' mangled-name='__drm_atomic_helper_private_obj_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_helper_private_obj_duplicate_state'>
+        <parameter type-id='11c98e9a' name='obj' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='553' column='1'/>
+        <parameter type-id='4ea020ae' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='554' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_atomic_state_free' mangled-name='__drm_atomic_state_free' filepath='drivers/gpu/drm/drm_atomic.c' line='257' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_atomic_state_free'>
+        <parameter type-id='aa29ecab' name='ref' filepath='drivers/gpu/drm/drm_atomic.c' line='257' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_crtc_commit_free' mangled-name='__drm_crtc_commit_free' filepath='drivers/gpu/drm/drm_atomic.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_crtc_commit_free'>
+        <parameter type-id='aa29ecab' name='kref' filepath='drivers/gpu/drm/drm_atomic.c' line='46' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_dbg' mangled-name='__drm_dbg' filepath='drivers/gpu/drm/drm_print.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_dbg'>
+        <parameter type-id='189697ba' name='category' filepath='drivers/gpu/drm/drm_print.c' line='283' column='1'/>
+        <parameter type-id='80f4b756' name='format' filepath='drivers/gpu/drm/drm_print.c' line='283' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_err' mangled-name='__drm_err' filepath='drivers/gpu/drm/drm_print.c' line='302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_err'>
+        <parameter type-id='80f4b756' name='format' filepath='drivers/gpu/drm/drm_print.c' line='302' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_printfn_coredump' mangled-name='__drm_printfn_coredump' filepath='drivers/gpu/drm/drm_print.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_printfn_coredump'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='99' column='1'/>
+        <parameter type-id='3b5c2208' name='vaf' filepath='drivers/gpu/drm/drm_print.c' line='99' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_printfn_info' mangled-name='__drm_printfn_info' filepath='drivers/gpu/drm/drm_print.c' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_printfn_info'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='157' column='1'/>
+        <parameter type-id='3b5c2208' name='vaf' filepath='drivers/gpu/drm/drm_print.c' line='157' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_printfn_seq_file' mangled-name='__drm_printfn_seq_file' filepath='drivers/gpu/drm/drm_print.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_printfn_seq_file'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='151' column='1'/>
+        <parameter type-id='3b5c2208' name='vaf' filepath='drivers/gpu/drm/drm_print.c' line='151' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_puts_coredump' mangled-name='__drm_puts_coredump' filepath='drivers/gpu/drm/drm_print.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_puts_coredump'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='57' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='drivers/gpu/drm/drm_print.c' line='57' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__drm_puts_seq_file' mangled-name='__drm_puts_seq_file' filepath='drivers/gpu/drm/drm_print.c' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_puts_seq_file'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='145' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='drivers/gpu/drm/drm_print.c' line='145' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__dynamic_dev_dbg' mangled-name='__dynamic_dev_dbg' filepath='lib/dynamic_debug.c' line='641' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dynamic_dev_dbg'>
+        <parameter type-id='7c67ab39' name='descriptor' filepath='lib/dynamic_debug.c' line='641' column='1'/>
+        <parameter type-id='8df61054' name='dev' filepath='lib/dynamic_debug.c' line='642' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/dynamic_debug.c' line='642' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__dynamic_pr_debug' mangled-name='__dynamic_pr_debug' filepath='lib/dynamic_debug.c' line='621' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__dynamic_pr_debug'>
+        <parameter type-id='7c67ab39' name='descriptor' filepath='lib/dynamic_debug.c' line='621' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/dynamic_debug.c' line='621' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__ethtool_get_link_ksettings' mangled-name='__ethtool_get_link_ksettings' filepath='net/ethtool/ioctl.c' line='427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ethtool_get_link_ksettings'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethtool/ioctl.c' line='427' column='1'/>
+        <parameter type-id='70de91e2' name='link_ksettings' filepath='net/ethtool/ioctl.c' line='428' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__fdget' mangled-name='__fdget' filepath='fs/file.c' line='994' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__fdget'>
+        <parameter type-id='f0981eeb' name='fd' filepath='fs/file.c' line='994' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='__free_pages' mangled-name='__free_pages' filepath='mm/page_alloc.c' line='5216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__free_pages'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5216' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5216' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__get_free_pages' mangled-name='__get_free_pages' filepath='mm/page_alloc.c' line='5191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_free_pages'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5191' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5191' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='__get_task_comm' mangled-name='__get_task_comm' filepath='fs/exec.c' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_task_comm'>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/exec.c' line='1212' column='1'/>
+        <parameter type-id='b59d7dce' name='buf_size' filepath='fs/exec.c' line='1212' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='fs/exec.c' line='1212' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='__hci_cmd_sync' mangled-name='__hci_cmd_sync' filepath='net/bluetooth/hci_request.c' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__hci_cmd_sync'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_request.c' line='184' column='1'/>
+        <parameter type-id='1dc6a898' name='opcode' filepath='net/bluetooth/hci_request.c' line='184' column='1'/>
+        <parameter type-id='19c2251e' name='plen' filepath='net/bluetooth/hci_request.c' line='184' column='1'/>
+        <parameter type-id='eaa32e2f' name='param' filepath='net/bluetooth/hci_request.c' line='185' column='1'/>
+        <parameter type-id='19c2251e' name='timeout' filepath='net/bluetooth/hci_request.c' line='185' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__hci_cmd_sync_ev' mangled-name='__hci_cmd_sync_ev' filepath='net/bluetooth/hci_request.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__hci_cmd_sync_ev'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_request.c' line='127' column='1'/>
+        <parameter type-id='1dc6a898' name='opcode' filepath='net/bluetooth/hci_request.c' line='127' column='1'/>
+        <parameter type-id='19c2251e' name='plen' filepath='net/bluetooth/hci_request.c' line='127' column='1'/>
+        <parameter type-id='eaa32e2f' name='param' filepath='net/bluetooth/hci_request.c' line='128' column='1'/>
+        <parameter type-id='f9b06939' name='event' filepath='net/bluetooth/hci_request.c' line='128' column='1'/>
+        <parameter type-id='19c2251e' name='timeout' filepath='net/bluetooth/hci_request.c' line='128' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__hvc_resize' mangled-name='__hvc_resize' filepath='drivers/tty/hvc/hvc_console.c' line='778' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__hvc_resize'>
+        <parameter type-id='352b95f6' name='hp' filepath='drivers/tty/hvc/hvc_console.c' line='778' column='1'/>
+        <parameter type-id='a818b7a0' name='ws' filepath='drivers/tty/hvc/hvc_console.c' line='778' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__hwspin_lock_timeout' mangled-name='__hwspin_lock_timeout' filepath='drivers/hwspinlock/hwspinlock_core.c' line='206' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__hwspin_lock_timeout'>
+        <parameter type-id='0cb0b26f' name='hwlock' filepath='drivers/hwspinlock/hwspinlock_core.c' line='206' column='1'/>
+        <parameter type-id='f0981eeb' name='to' filepath='drivers/hwspinlock/hwspinlock_core.c' line='206' column='1'/>
+        <parameter type-id='95e97e5e' name='mode' filepath='drivers/hwspinlock/hwspinlock_core.c' line='207' column='1'/>
+        <parameter type-id='1d2c2b85' name='flags' filepath='drivers/hwspinlock/hwspinlock_core.c' line='207' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__hwspin_unlock' mangled-name='__hwspin_unlock' filepath='drivers/hwspinlock/hwspinlock_core.c' line='265' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__hwspin_unlock'>
+        <parameter type-id='0cb0b26f' name='hwlock' filepath='drivers/hwspinlock/hwspinlock_core.c' line='265' column='1'/>
+        <parameter type-id='95e97e5e' name='mode' filepath='drivers/hwspinlock/hwspinlock_core.c' line='265' column='1'/>
+        <parameter type-id='1d2c2b85' name='flags' filepath='drivers/hwspinlock/hwspinlock_core.c' line='265' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__i2c_smbus_xfer' mangled-name='__i2c_smbus_xfer' filepath='drivers/i2c/i2c-core-smbus.c' line='550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__i2c_smbus_xfer'>
+        <parameter type-id='b9af02c3' name='adapter' filepath='drivers/i2c/i2c-core-smbus.c' line='550' column='1'/>
+        <parameter type-id='1dc6a898' name='addr' filepath='drivers/i2c/i2c-core-smbus.c' line='550' column='1'/>
+        <parameter type-id='8efea9e5' name='flags' filepath='drivers/i2c/i2c-core-smbus.c' line='551' column='1'/>
+        <parameter type-id='a84c031d' name='read_write' filepath='drivers/i2c/i2c-core-smbus.c' line='551' column='1'/>
+        <parameter type-id='f9b06939' name='command' filepath='drivers/i2c/i2c-core-smbus.c' line='552' column='1'/>
+        <parameter type-id='95e97e5e' name='protocol' filepath='drivers/i2c/i2c-core-smbus.c' line='552' column='1'/>
+        <parameter type-id='a556dccb' name='data' filepath='drivers/i2c/i2c-core-smbus.c' line='552' column='1'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='__i2c_transfer' mangled-name='__i2c_transfer' filepath='drivers/i2c/i2c-core-base.c' line='2018' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__i2c_transfer'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='2018' column='1'/>
+        <parameter type-id='cd44bc95' name='msgs' filepath='drivers/i2c/i2c-core-base.c' line='2018' column='1'/>
+        <parameter type-id='95e97e5e' name='num' filepath='drivers/i2c/i2c-core-base.c' line='2018' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__ieee80211_schedule_txq' mangled-name='__ieee80211_schedule_txq' filepath='net/mac80211/tx.c' line='3854' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ieee80211_schedule_txq'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='3854' column='1'/>
+        <parameter type-id='cde83d0f' name='txq' filepath='net/mac80211/tx.c' line='3855' column='1'/>
+        <parameter type-id='b50a4934' name='force' filepath='net/mac80211/tx.c' line='3856' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__init_rwsem' mangled-name='__init_rwsem' filepath='kernel/locking/rwsem.c' line='325' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__init_rwsem'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='325' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/locking/rwsem.c' line='325' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/locking/rwsem.c' line='326' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__init_swait_queue_head' mangled-name='__init_swait_queue_head' filepath='kernel/sched/swait.c' line='7' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__init_swait_queue_head'>
+        <parameter type-id='571ea5c0' name='q' filepath='kernel/sched/swait.c' line='7' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/sched/swait.c' line='7' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/sched/swait.c' line='8' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__init_waitqueue_head' mangled-name='__init_waitqueue_head' filepath='kernel/sched/wait.c' line='10' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__init_waitqueue_head'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='10' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/sched/wait.c' line='10' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/sched/wait.c' line='10' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__ioread32_copy' mangled-name='__ioread32_copy' filepath='lib/iomap_copy.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ioread32_copy'>
+        <parameter type-id='eaa32e2f' name='to' filepath='lib/iomap_copy.c' line='42' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='lib/iomap_copy.c' line='42' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/iomap_copy.c' line='42' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__ioremap' mangled-name='__ioremap' filepath='arch/arm64/mm/ioremap.c' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ioremap'>
+        <parameter type-id='2522883d' name='phys_addr' filepath='arch/arm64/mm/ioremap.c' line='226' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='arch/arm64/mm/ioremap.c' line='226' column='1'/>
+        <parameter type-id='2e2dcbd3' name='prot' filepath='arch/arm64/mm/ioremap.c' line='226' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__iowrite32_copy' mangled-name='__iowrite32_copy' filepath='lib/iomap_copy.c' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__iowrite32_copy'>
+        <parameter type-id='eaa32e2f' name='to' filepath='lib/iomap_copy.c' line='19' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='lib/iomap_copy.c' line='20' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/iomap_copy.c' line='21' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__ipv6_addr_type' mangled-name='__ipv6_addr_type' filepath='net/ipv6/addrconf_core.c' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ipv6_addr_type'>
+        <parameter type-id='fea9c20b' name='addr' filepath='net/ipv6/addrconf_core.c' line='38' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__irq_alloc_descs' mangled-name='__irq_alloc_descs' filepath='kernel/irq/irqdesc.c' line='779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__irq_alloc_descs'>
+        <parameter type-id='95e97e5e' name='irq' filepath='kernel/irq/irqdesc.c' line='779' column='1'/>
+        <parameter type-id='f0981eeb' name='from' filepath='kernel/irq/irqdesc.c' line='779' column='1'/>
+        <parameter type-id='f0981eeb' name='cnt' filepath='kernel/irq/irqdesc.c' line='779' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='kernel/irq/irqdesc.c' line='779' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='kernel/irq/irqdesc.c' line='780' column='1'/>
+        <parameter type-id='07779cd9' name='affinity' filepath='kernel/irq/irqdesc.c' line='780' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__irq_domain_add' mangled-name='__irq_domain_add' filepath='kernel/irq/irqdomain.c' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__irq_domain_add'>
+        <parameter type-id='4a935625' name='fwnode' filepath='kernel/irq/irqdomain.c' line='130' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='kernel/irq/irqdomain.c' line='130' column='1'/>
+        <parameter type-id='88370ce9' name='hwirq_max' filepath='kernel/irq/irqdomain.c' line='131' column='1'/>
+        <parameter type-id='95e97e5e' name='direct_max' filepath='kernel/irq/irqdomain.c' line='131' column='1'/>
+        <parameter type-id='2c202856' name='ops' filepath='kernel/irq/irqdomain.c' line='132' column='1'/>
+        <parameter type-id='eaa32e2f' name='host_data' filepath='kernel/irq/irqdomain.c' line='133' column='1'/>
+        <return type-id='7544e824'/>
+      </function-decl>
+      <function-decl name='__kfifo_alloc' mangled-name='__kfifo_alloc' filepath='lib/kfifo.c' line='24' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_alloc'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='24' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='lib/kfifo.c' line='24' column='1'/>
+        <parameter type-id='b59d7dce' name='esize' filepath='lib/kfifo.c' line='25' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='lib/kfifo.c' line='25' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__kfifo_free' mangled-name='__kfifo_free' filepath='lib/kfifo.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_free'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='55' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__kfifo_from_user_r' mangled-name='__kfifo_from_user_r' filepath='lib/kfifo.c' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_from_user_r'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='499' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='lib/kfifo.c' line='499' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='lib/kfifo.c' line='500' column='1'/>
+        <parameter type-id='807869d3' name='copied' filepath='lib/kfifo.c' line='500' column='1'/>
+        <parameter type-id='b59d7dce' name='recsize' filepath='lib/kfifo.c' line='500' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__kfifo_in' mangled-name='__kfifo_in' filepath='lib/kfifo.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_in'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='113' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/kfifo.c' line='114' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='lib/kfifo.c' line='114' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__kfifo_in_r' mangled-name='__kfifo_in_r' filepath='lib/kfifo.c' line='438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_in_r'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='438' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/kfifo.c' line='438' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='lib/kfifo.c' line='439' column='1'/>
+        <parameter type-id='b59d7dce' name='recsize' filepath='lib/kfifo.c' line='439' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__kfifo_init' mangled-name='__kfifo_init' filepath='lib/kfifo.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_init'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='66' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='lib/kfifo.c' line='66' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='lib/kfifo.c' line='67' column='1'/>
+        <parameter type-id='b59d7dce' name='esize' filepath='lib/kfifo.c' line='67' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__kfifo_out' mangled-name='__kfifo_out' filepath='lib/kfifo.c' line='166' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_out'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='166' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/kfifo.c' line='167' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='lib/kfifo.c' line='167' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__kfifo_out_peek' mangled-name='__kfifo_out_peek' filepath='lib/kfifo.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_out_peek'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='152' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/kfifo.c' line='153' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='lib/kfifo.c' line='153' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__kfifo_skip_r' mangled-name='__kfifo_skip_r' filepath='lib/kfifo.c' line='490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_skip_r'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='490' column='1'/>
+        <parameter type-id='b59d7dce' name='recsize' filepath='lib/kfifo.c' line='490' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__kfifo_to_user_r' mangled-name='__kfifo_to_user_r' filepath='lib/kfifo.c' line='523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kfifo_to_user_r'>
+        <parameter type-id='f3207f74' name='fifo' filepath='lib/kfifo.c' line='523' column='1'/>
+        <parameter type-id='eaa32e2f' name='to' filepath='lib/kfifo.c' line='523' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='lib/kfifo.c' line='524' column='1'/>
+        <parameter type-id='807869d3' name='copied' filepath='lib/kfifo.c' line='524' column='1'/>
+        <parameter type-id='b59d7dce' name='recsize' filepath='lib/kfifo.c' line='524' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__kmalloc' mangled-name='__kmalloc' filepath='mm/slub.c' line='4014' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kmalloc'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='4014' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='mm/slub.c' line='4014' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__kthread_init_worker' mangled-name='__kthread_init_worker' filepath='kernel/kthread.c' line='690' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kthread_init_worker'>
+        <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='690' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/kthread.c' line='691' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/kthread.c' line='692' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__list_add_valid' mangled-name='__list_add_valid' filepath='lib/list_debug.c' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__list_add_valid'>
+        <parameter type-id='e84b031a' name='new' filepath='lib/list_debug.c' line='20' column='1'/>
+        <parameter type-id='e84b031a' name='prev' filepath='lib/list_debug.c' line='20' column='1'/>
+        <parameter type-id='e84b031a' name='next' filepath='lib/list_debug.c' line='21' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__list_del_entry_valid' mangled-name='__list_del_entry_valid' filepath='lib/list_debug.c' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__list_del_entry_valid'>
+        <parameter type-id='e84b031a' name='entry' filepath='lib/list_debug.c' line='38' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__local_bh_enable_ip' mangled-name='__local_bh_enable_ip' filepath='kernel/softirq.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__local_bh_enable_ip'>
+        <parameter type-id='7359adad' name='ip' filepath='kernel/softirq.c' line='167' column='1'/>
+        <parameter type-id='f0981eeb' name='cnt' filepath='kernel/softirq.c' line='167' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__lock_page' mangled-name='__lock_page' filepath='mm/filemap.c' line='1544' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__lock_page'>
+        <parameter type-id='02f11ed4' name='__page' filepath='mm/filemap.c' line='1544' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__log_post_read_mmio' mangled-name='__log_post_read_mmio' filepath='kernel/trace/trace_readwrite.c' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__log_post_read_mmio'>
+        <parameter type-id='91ce1af9' name='val' filepath='kernel/trace/trace_readwrite.c' line='32' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='kernel/trace/trace_readwrite.c' line='32' column='1'/>
+        <parameter type-id='60f8eab0' name='addr' filepath='kernel/trace/trace_readwrite.c' line='32' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__log_read_mmio' mangled-name='__log_read_mmio' filepath='kernel/trace/trace_readwrite.c' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__log_read_mmio'>
+        <parameter type-id='f9b06939' name='width' filepath='kernel/trace/trace_readwrite.c' line='25' column='1'/>
+        <parameter type-id='60f8eab0' name='addr' filepath='kernel/trace/trace_readwrite.c' line='25' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__log_write_mmio' mangled-name='__log_write_mmio' filepath='kernel/trace/trace_readwrite.c' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__log_write_mmio'>
+        <parameter type-id='91ce1af9' name='val' filepath='kernel/trace/trace_readwrite.c' line='18' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='kernel/trace/trace_readwrite.c' line='18' column='1'/>
+        <parameter type-id='fe09dd29' name='addr' filepath='kernel/trace/trace_readwrite.c' line='18' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__memcpy_fromio' mangled-name='__memcpy_fromio' filepath='arch/arm64/kernel/io.c' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__memcpy_fromio'>
+        <parameter type-id='eaa32e2f' name='to' filepath='arch/arm64/kernel/io.c' line='15' column='1'/>
+        <parameter type-id='60f8eab0' name='from' filepath='arch/arm64/kernel/io.c' line='15' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='arch/arm64/kernel/io.c' line='15' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__memcpy_toio' mangled-name='__memcpy_toio' filepath='arch/arm64/kernel/io.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__memcpy_toio'>
+        <parameter type-id='fe09dd29' name='to' filepath='arch/arm64/kernel/io.c' line='43' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='arch/arm64/kernel/io.c' line='43' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='arch/arm64/kernel/io.c' line='43' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__memset_io' mangled-name='__memset_io' filepath='arch/arm64/kernel/io.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__memset_io'>
+        <parameter type-id='fe09dd29' name='dst' filepath='arch/arm64/kernel/io.c' line='71' column='1'/>
+        <parameter type-id='95e97e5e' name='c' filepath='arch/arm64/kernel/io.c' line='71' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='arch/arm64/kernel/io.c' line='71' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__mmc_claim_host' mangled-name='__mmc_claim_host' filepath='drivers/mmc/core/core.c' line='780' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__mmc_claim_host'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='780' column='1'/>
+        <parameter type-id='f1e196e0' name='ctx' filepath='drivers/mmc/core/core.c' line='780' column='1'/>
+        <parameter type-id='8a47abc3' name='abort' filepath='drivers/mmc/core/core.c' line='781' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__mmc_send_status' mangled-name='__mmc_send_status' filepath='drivers/mmc/core/mmc_ops.c' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__mmc_send_status'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='56' column='1'/>
+        <parameter type-id='f9409001' name='status' filepath='drivers/mmc/core/mmc_ops.c' line='56' column='1'/>
+        <parameter type-id='f0981eeb' name='retries' filepath='drivers/mmc/core/mmc_ops.c' line='56' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__mmdrop' mangled-name='__mmdrop' filepath='kernel/fork.c' line='718' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__mmdrop'>
+        <parameter type-id='df4b7819' name='mm' filepath='kernel/fork.c' line='718' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__module_get' mangled-name='__module_get' filepath='kernel/module.c' line='1128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__module_get'>
+        <parameter type-id='2730d015' name='module' filepath='kernel/module.c' line='1128' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__msecs_to_jiffies' mangled-name='__msecs_to_jiffies' filepath='kernel/time/time.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__msecs_to_jiffies'>
+        <parameter type-id='20f5f452' name='m' filepath='kernel/time/time.c' line='552' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='__mutex_init' mangled-name='__mutex_init' filepath='kernel/locking/mutex.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__mutex_init'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='42' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/locking/mutex.c' line='42' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/locking/mutex.c' line='42' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__napi_alloc_skb' mangled-name='__napi_alloc_skb' filepath='net/core/skbuff.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__napi_alloc_skb'>
+        <parameter type-id='c50361c5' name='napi' filepath='net/core/skbuff.c' line='506' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='506' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='507' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__napi_schedule' mangled-name='__napi_schedule' filepath='net/core/dev.c' line='6422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__napi_schedule'>
+        <parameter type-id='c50361c5' name='n' filepath='net/core/dev.c' line='6422' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__ndelay' mangled-name='__ndelay' filepath='arch/arm64/lib/delay.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__ndelay'>
+        <parameter type-id='7359adad' name='nsecs' filepath='arch/arm64/lib/delay.c' line='55' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__netdev_alloc_skb' mangled-name='__netdev_alloc_skb' filepath='net/core/skbuff.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__netdev_alloc_skb'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/skbuff.c' line='431' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='431' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='432' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='__netif_napi_del' mangled-name='__netif_napi_del' filepath='net/core/dev.c' line='6801' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__netif_napi_del'>
+        <parameter type-id='c50361c5' name='napi' filepath='net/core/dev.c' line='6801' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__netif_set_xps_queue' mangled-name='__netif_set_xps_queue' filepath='net/core/dev.c' line='2627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__netif_set_xps_queue'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='2627' column='1'/>
+        <parameter type-id='f9b37274' name='mask' filepath='net/core/dev.c' line='2627' column='1'/>
+        <parameter type-id='1dc6a898' name='index' filepath='net/core/dev.c' line='2628' column='1'/>
+        <parameter type-id='b50a4934' name='is_rxqs_map' filepath='net/core/dev.c' line='2628' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__netlink_kernel_create' mangled-name='__netlink_kernel_create' filepath='net/netlink/af_netlink.c' line='2040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__netlink_kernel_create'>
+        <parameter type-id='a2bff676' name='net' filepath='net/netlink/af_netlink.c' line='2040' column='1'/>
+        <parameter type-id='95e97e5e' name='unit' filepath='net/netlink/af_netlink.c' line='2040' column='1'/>
+        <parameter type-id='2730d015' name='module' filepath='net/netlink/af_netlink.c' line='2040' column='1'/>
+        <parameter type-id='8438f281' name='cfg' filepath='net/netlink/af_netlink.c' line='2041' column='1'/>
+        <return type-id='f772df6d'/>
+      </function-decl>
+      <function-decl name='__nla_parse' mangled-name='__nla_parse' filepath='lib/nlattr.c' line='680' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__nla_parse'>
+        <parameter type-id='30864cdc' name='tb' filepath='lib/nlattr.c' line='680' column='1'/>
+        <parameter type-id='95e97e5e' name='maxtype' filepath='lib/nlattr.c' line='680' column='1'/>
+        <parameter type-id='0f2a7ce5' name='head' filepath='lib/nlattr.c' line='681' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='lib/nlattr.c' line='681' column='1'/>
+        <parameter type-id='109cdb66' name='policy' filepath='lib/nlattr.c' line='682' column='1'/>
+        <parameter type-id='f0981eeb' name='validate' filepath='lib/nlattr.c' line='682' column='1'/>
+        <parameter type-id='5799dc94' name='extack' filepath='lib/nlattr.c' line='683' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__nlmsg_put' mangled-name='__nlmsg_put' filepath='net/netlink/af_netlink.c' line='2180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__nlmsg_put'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/netlink/af_netlink.c' line='2180' column='1'/>
+        <parameter type-id='19c2251e' name='portid' filepath='net/netlink/af_netlink.c' line='2180' column='1'/>
+        <parameter type-id='19c2251e' name='seq' filepath='net/netlink/af_netlink.c' line='2180' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='net/netlink/af_netlink.c' line='2180' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='net/netlink/af_netlink.c' line='2180' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/netlink/af_netlink.c' line='2180' column='1'/>
+        <return type-id='c2074578'/>
+      </function-decl>
+      <var-decl name='__num_online_cpus' type-id='49178f86' mangled-name='__num_online_cpus' visibility='default' filepath='kernel/cpu.c' line='2775' column='1' elf-symbol-id='__num_online_cpus'/>
+      <function-decl name='__of_reset_control_get' mangled-name='__of_reset_control_get' filepath='drivers/reset/core.c' line='605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__of_reset_control_get'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/reset/core.c' line='605' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/reset/core.c' line='606' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/reset/core.c' line='606' column='1'/>
+        <parameter type-id='b50a4934' name='shared' filepath='drivers/reset/core.c' line='606' column='1'/>
+        <parameter type-id='b50a4934' name='optional' filepath='drivers/reset/core.c' line='607' column='1'/>
+        <parameter type-id='b50a4934' name='acquired' filepath='drivers/reset/core.c' line='607' column='1'/>
+        <return type-id='9f9b8114'/>
+      </function-decl>
+      <function-decl name='__page_frag_cache_drain' mangled-name='__page_frag_cache_drain' filepath='mm/page_alloc.c' line='5268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_frag_cache_drain'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5268' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5268' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__page_pinner_migration_failed' mangled-name='__page_pinner_migration_failed' filepath='mm/page_pinner.c' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_migration_failed'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_pinner.c' line='328' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__pci_register_driver' mangled-name='__pci_register_driver' filepath='drivers/pci/pci-driver.c' line='1378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pci_register_driver'>
+        <parameter type-id='85b59624' name='drv' filepath='drivers/pci/pci-driver.c' line='1378' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/pci/pci-driver.c' line='1378' column='1'/>
+        <parameter type-id='80f4b756' name='mod_name' filepath='drivers/pci/pci-driver.c' line='1379' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='__per_cpu_offset' type-id='bc3af5fa' mangled-name='__per_cpu_offset' visibility='default' filepath='mm/percpu.c' line='3083' column='1' elf-symbol-id='__per_cpu_offset'/>
+      <function-decl name='__platform_driver_probe' mangled-name='__platform_driver_probe' filepath='drivers/base/platform.c' line='850' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__platform_driver_probe'>
+        <parameter type-id='d53c2eb5' name='drv' filepath='drivers/base/platform.c' line='850' column='1'/>
+        <parameter type-id='e05ae2cd' name='probe' filepath='drivers/base/platform.c' line='851' column='1'/>
+        <parameter type-id='2730d015' name='module' filepath='drivers/base/platform.c' line='851' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__platform_driver_register' mangled-name='__platform_driver_register' filepath='drivers/base/platform.c' line='807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__platform_driver_register'>
+        <parameter type-id='d53c2eb5' name='drv' filepath='drivers/base/platform.c' line='807' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/base/platform.c' line='808' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__pm_relax' mangled-name='__pm_relax' filepath='drivers/base/power/wakeup.c' line='757' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_relax'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='757' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__pm_runtime_disable' mangled-name='__pm_runtime_disable' filepath='drivers/base/power/runtime.c' line='1404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_runtime_disable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1404' column='1'/>
+        <parameter type-id='b50a4934' name='check_resume' filepath='drivers/base/power/runtime.c' line='1404' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__pm_runtime_idle' mangled-name='__pm_runtime_idle' filepath='drivers/base/power/runtime.c' line='1052' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_runtime_idle'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1052' column='1'/>
+        <parameter type-id='95e97e5e' name='rpmflags' filepath='drivers/base/power/runtime.c' line='1052' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__pm_runtime_resume' mangled-name='__pm_runtime_resume' filepath='drivers/base/power/runtime.c' line='1119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_runtime_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1119' column='1'/>
+        <parameter type-id='95e97e5e' name='rpmflags' filepath='drivers/base/power/runtime.c' line='1119' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__pm_runtime_set_status' mangled-name='__pm_runtime_set_status' filepath='drivers/base/power/runtime.c' line='1207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_runtime_set_status'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1207' column='1'/>
+        <parameter type-id='f0981eeb' name='status' filepath='drivers/base/power/runtime.c' line='1207' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__pm_runtime_suspend' mangled-name='__pm_runtime_suspend' filepath='drivers/base/power/runtime.c' line='1086' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_runtime_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1086' column='1'/>
+        <parameter type-id='95e97e5e' name='rpmflags' filepath='drivers/base/power/runtime.c' line='1086' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__pm_runtime_use_autosuspend' mangled-name='__pm_runtime_use_autosuspend' filepath='drivers/base/power/runtime.c' line='1627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_runtime_use_autosuspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1627' column='1'/>
+        <parameter type-id='b50a4934' name='use' filepath='drivers/base/power/runtime.c' line='1627' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__pm_stay_awake' mangled-name='__pm_stay_awake' filepath='drivers/base/power/wakeup.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pm_stay_awake'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='640' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__printk_ratelimit' mangled-name='__printk_ratelimit' filepath='kernel/printk/printk.c' line='3134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__printk_ratelimit'>
+        <parameter type-id='80f4b756' name='func' filepath='kernel/printk/printk.c' line='3134' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__pskb_pull_tail' mangled-name='__pskb_pull_tail' filepath='net/core/skbuff.c' line='2067' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pskb_pull_tail'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='2067' column='1'/>
+        <parameter type-id='95e97e5e' name='delta' filepath='net/core/skbuff.c' line='2067' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__put_cred' mangled-name='__put_cred' filepath='kernel/cred.c' line='134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_cred'>
+        <parameter type-id='10cfb911' name='cred' filepath='kernel/cred.c' line='134' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__put_page' mangled-name='__put_page' filepath='mm/swap.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/swap.c' line='118' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__put_task_struct' mangled-name='__put_task_struct' filepath='kernel/fork.c' line='767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_task_struct'>
+        <parameter type-id='f23e2572' name='tsk' filepath='kernel/fork.c' line='767' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__rcu_read_lock' mangled-name='__rcu_read_lock' filepath='kernel/rcu/tree_plugin.h' line='374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__rcu_read_lock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__rcu_read_unlock' mangled-name='__rcu_read_unlock' filepath='kernel/rcu/tree_plugin.h' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__rcu_read_unlock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__refrigerator' mangled-name='__refrigerator' filepath='kernel/freezer.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__refrigerator'>
+        <parameter type-id='b50a4934' name='check_kthr_stop' filepath='kernel/freezer.c' line='60' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__register_chrdev' mangled-name='__register_chrdev' filepath='fs/char_dev.c' line='268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__register_chrdev'>
+        <parameter type-id='f0981eeb' name='major' filepath='fs/char_dev.c' line='268' column='1'/>
+        <parameter type-id='f0981eeb' name='baseminor' filepath='fs/char_dev.c' line='268' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='269' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/char_dev.c' line='269' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='fs/char_dev.c' line='270' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__register_rpmsg_driver' mangled-name='__register_rpmsg_driver' filepath='drivers/rpmsg/rpmsg_core.c' line='616' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__register_rpmsg_driver'>
+        <parameter type-id='7331a99f' name='rpdrv' filepath='drivers/rpmsg/rpmsg_core.c' line='616' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/rpmsg/rpmsg_core.c' line='616' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__regmap_init' mangled-name='__regmap_init' filepath='drivers/base/regmap/regmap.c' line='702' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__regmap_init'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap.c' line='702' column='1'/>
+        <parameter type-id='00e96299' name='bus' filepath='drivers/base/regmap/regmap.c' line='703' column='1'/>
+        <parameter type-id='eaa32e2f' name='bus_context' filepath='drivers/base/regmap/regmap.c' line='704' column='1'/>
+        <parameter type-id='9d19d4a7' name='config' filepath='drivers/base/regmap/regmap.c' line='705' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/base/regmap/regmap.c' line='706' column='1'/>
+        <parameter type-id='80f4b756' name='lock_name' filepath='drivers/base/regmap/regmap.c' line='707' column='1'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='__release_region' mangled-name='__release_region' filepath='kernel/resource.c' line='1199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__release_region'>
+        <parameter type-id='c9d64c0d' name='parent' filepath='kernel/resource.c' line='1199' column='1'/>
+        <parameter type-id='acc63fdf' name='start' filepath='kernel/resource.c' line='1199' column='1'/>
+        <parameter type-id='acc63fdf' name='n' filepath='kernel/resource.c' line='1200' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__request_module' mangled-name='__request_module' filepath='kernel/kmod.c' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_module'>
+        <parameter type-id='b50a4934' name='wait' filepath='kernel/kmod.c' line='124' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/kmod.c' line='124' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__request_percpu_irq' mangled-name='__request_percpu_irq' filepath='kernel/irq/manage.c' line='2455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_percpu_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2455' column='1'/>
+        <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/manage.c' line='2455' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/irq/manage.c' line='2456' column='1'/>
+        <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/manage.c' line='2456' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2457' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__request_region' mangled-name='__request_region' filepath='kernel/resource.c' line='1126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_region'>
+        <parameter type-id='c9d64c0d' name='parent' filepath='kernel/resource.c' line='1126' column='1'/>
+        <parameter type-id='acc63fdf' name='start' filepath='kernel/resource.c' line='1127' column='1'/>
+        <parameter type-id='acc63fdf' name='n' filepath='kernel/resource.c' line='1127' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/resource.c' line='1128' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='kernel/resource.c' line='1128' column='1'/>
+        <return type-id='c9d64c0d'/>
+      </function-decl>
+      <function-decl name='__rht_bucket_nested' mangled-name='__rht_bucket_nested' filepath='lib/rhashtable.c' line='1174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__rht_bucket_nested'>
+        <parameter type-id='6a4a6779' name='tbl' filepath='lib/rhashtable.c' line='1175' column='1'/>
+        <parameter type-id='f0981eeb' name='hash' filepath='lib/rhashtable.c' line='1175' column='1'/>
+        <return type-id='33f7eff4'/>
+      </function-decl>
+      <function-decl name='__root_device_register' mangled-name='__root_device_register' filepath='drivers/base/core.c' line='3809' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__root_device_register'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/core.c' line='3809' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/base/core.c' line='3809' column='1'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='__rt_mutex_init' mangled-name='__rt_mutex_init' filepath='kernel/locking/rtmutex.c' line='1676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__rt_mutex_init'>
+        <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1676' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/locking/rtmutex.c' line='1676' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/locking/rtmutex.c' line='1677' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__rtc_register_device' mangled-name='__rtc_register_device' filepath='drivers/rtc/class.c' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__rtc_register_device'>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/rtc/class.c' line='388' column='1'/>
+        <parameter type-id='5992ae83' name='rtc' filepath='drivers/rtc/class.c' line='388' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__scsi_iterate_devices' mangled-name='__scsi_iterate_devices' filepath='drivers/scsi/scsi.c' line='547' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__scsi_iterate_devices'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/scsi.c' line='547' column='1'/>
+        <parameter type-id='eb572b74' name='prev' filepath='drivers/scsi/scsi.c' line='548' column='1'/>
+        <return type-id='eb572b74'/>
+      </function-decl>
+      <function-decl name='__scsi_print_sense' mangled-name='__scsi_print_sense' filepath='drivers/scsi/scsi_logging.c' line='366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__scsi_print_sense'>
+        <parameter type-id='0f176ec1' name='sdev' filepath='drivers/scsi/scsi_logging.c' line='366' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/scsi/scsi_logging.c' line='366' column='1'/>
+        <parameter type-id='354f7eb9' name='sense_buffer' filepath='drivers/scsi/scsi_logging.c' line='367' column='1'/>
+        <parameter type-id='95e97e5e' name='sense_len' filepath='drivers/scsi/scsi_logging.c' line='367' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__sdhci_add_host' mangled-name='__sdhci_add_host' filepath='drivers/mmc/host/sdhci.c' line='4703' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sdhci_add_host'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='4703' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__sdhci_set_timeout' mangled-name='__sdhci_set_timeout' filepath='drivers/mmc/host/sdhci.c' line='1031' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sdhci_set_timeout'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='1031' column='1'/>
+        <parameter type-id='6df3750c' name='cmd' filepath='drivers/mmc/host/sdhci.c' line='1031' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__seq_open_private' mangled-name='__seq_open_private' filepath='fs/seq_file.c' line='619' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__seq_open_private'>
+        <parameter type-id='77e79a4b' name='f' filepath='fs/seq_file.c' line='619' column='1'/>
+        <parameter type-id='943a1b48' name='ops' filepath='fs/seq_file.c' line='619' column='1'/>
+        <parameter type-id='95e97e5e' name='psize' filepath='fs/seq_file.c' line='620' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='__serio_register_driver' mangled-name='__serio_register_driver' filepath='drivers/input/serio/serio.c' line='814' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__serio_register_driver'>
+        <parameter type-id='1065554a' name='drv' filepath='drivers/input/serio/serio.c' line='814' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/input/serio/serio.c' line='814' column='1'/>
+        <parameter type-id='80f4b756' name='mod_name' filepath='drivers/input/serio/serio.c' line='814' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__serio_register_port' mangled-name='__serio_register_port' filepath='drivers/input/serio/serio.c' line='695' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__serio_register_port'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='695' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/input/serio/serio.c' line='695' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__sg_page_iter_dma_next' mangled-name='__sg_page_iter_dma_next' filepath='lib/scatterlist.c' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sg_page_iter_dma_next'>
+        <parameter type-id='f1397bef' name='dma_iter' filepath='lib/scatterlist.c' line='722' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__sg_page_iter_next' mangled-name='__sg_page_iter_next' filepath='lib/scatterlist.c' line='698' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sg_page_iter_next'>
+        <parameter type-id='06f723f0' name='piter' filepath='lib/scatterlist.c' line='698' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__sg_page_iter_start' mangled-name='__sg_page_iter_start' filepath='lib/scatterlist.c' line='681' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sg_page_iter_start'>
+        <parameter type-id='06f723f0' name='piter' filepath='lib/scatterlist.c' line='681' column='1'/>
+        <parameter type-id='bf3ef905' name='sglist' filepath='lib/scatterlist.c' line='682' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='682' column='1'/>
+        <parameter type-id='7359adad' name='pgoffset' filepath='lib/scatterlist.c' line='683' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__skb_ext_put' mangled-name='__skb_ext_put' filepath='net/core/skbuff.c' line='6354' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__skb_ext_put'>
+        <parameter type-id='374692c7' name='ext' filepath='net/core/skbuff.c' line='6354' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__skb_flow_dissect' mangled-name='__skb_flow_dissect' filepath='net/core/flow_dissector.c' line='904' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__skb_flow_dissect'>
+        <parameter type-id='f91cf277' name='net' filepath='net/core/flow_dissector.c' line='904' column='1'/>
+        <parameter type-id='11f4a000' name='skb' filepath='net/core/flow_dissector.c' line='905' column='1'/>
+        <parameter type-id='0b8ca8fa' name='flow_dissector' filepath='net/core/flow_dissector.c' line='906' column='1'/>
+        <parameter type-id='eaa32e2f' name='target_container' filepath='net/core/flow_dissector.c' line='907' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='net/core/flow_dissector.c' line='908' column='1'/>
+        <parameter type-id='84a5c3d4' name='proto' filepath='net/core/flow_dissector.c' line='908' column='1'/>
+        <parameter type-id='95e97e5e' name='nhoff' filepath='net/core/flow_dissector.c' line='908' column='1'/>
+        <parameter type-id='95e97e5e' name='hlen' filepath='net/core/flow_dissector.c' line='908' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='net/core/flow_dissector.c' line='909' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='__skb_get_hash' mangled-name='__skb_get_hash' filepath='net/core/flow_dissector.c' line='1608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__skb_get_hash'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/flow_dissector.c' line='1608' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__skb_pad' mangled-name='__skb_pad' filepath='net/core/skbuff.c' line='1803' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__skb_pad'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1803' column='1'/>
+        <parameter type-id='95e97e5e' name='pad' filepath='net/core/skbuff.c' line='1803' column='1'/>
+        <parameter type-id='b50a4934' name='free_on_error' filepath='net/core/skbuff.c' line='1803' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__spi_alloc_controller' mangled-name='__spi_alloc_controller' filepath='drivers/spi/spi.c' line='2441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__spi_alloc_controller'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/spi/spi.c' line='2441' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='drivers/spi/spi.c' line='2442' column='1'/>
+        <parameter type-id='b50a4934' name='slave' filepath='drivers/spi/spi.c' line='2442' column='1'/>
+        <return type-id='f22e4524'/>
+      </function-decl>
+      <function-decl name='__spi_register_driver' mangled-name='__spi_register_driver' filepath='drivers/spi/spi.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__spi_register_driver'>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/spi/spi.c' line='440' column='1'/>
+        <parameter type-id='d9c194a6' name='sdrv' filepath='drivers/spi/spi.c' line='440' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__splice_from_pipe' mangled-name='__splice_from_pipe' filepath='fs/splice.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__splice_from_pipe'>
+        <parameter type-id='15d29710' name='pipe' filepath='fs/splice.c' line='552' column='1'/>
+        <parameter type-id='f5bc338f' name='sd' filepath='fs/splice.c' line='552' column='1'/>
+        <parameter type-id='05903717' name='actor' filepath='fs/splice.c' line='553' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='__spmi_driver_register' mangled-name='__spmi_driver_register' filepath='drivers/spmi/spmi.c' line='566' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__spmi_driver_register'>
+        <parameter type-id='34066f8f' name='sdrv' filepath='drivers/spmi/spmi.c' line='566' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/spmi/spmi.c' line='566' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__srcu_read_unlock' mangled-name='__srcu_read_unlock' filepath='kernel/rcu/srcutree.c' line='422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__srcu_read_unlock'>
+        <parameter type-id='f7d7131a' name='ssp' filepath='kernel/rcu/srcutree.c' line='422' column='1'/>
+        <parameter type-id='95e97e5e' name='idx' filepath='kernel/rcu/srcutree.c' line='422' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__stack_chk_fail' mangled-name='__stack_chk_fail' filepath='kernel/panic.c' line='684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__stack_chk_fail'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__sw_hweight16' mangled-name='__sw_hweight16' filepath='lib/hweight.c' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sw_hweight16'>
+        <parameter type-id='f0981eeb' name='w' filepath='lib/hweight.c' line='30' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__sw_hweight32' mangled-name='__sw_hweight32' filepath='lib/hweight.c' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sw_hweight32'>
+        <parameter type-id='f0981eeb' name='w' filepath='lib/hweight.c' line='13' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__sw_hweight64' mangled-name='__sw_hweight64' filepath='lib/hweight.c' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sw_hweight64'>
+        <parameter type-id='d3130597' name='w' filepath='lib/hweight.c' line='47' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='__sw_hweight8' mangled-name='__sw_hweight8' filepath='lib/hweight.c' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sw_hweight8'>
+        <parameter type-id='f0981eeb' name='w' filepath='lib/hweight.c' line='39' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='__sysfs_match_string' mangled-name='__sysfs_match_string' filepath='lib/string.c' line='771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__sysfs_match_string'>
+        <parameter type-id='13956559' name='array' filepath='lib/string.c' line='771' column='1'/>
+        <parameter type-id='b59d7dce' name='n' filepath='lib/string.c' line='771' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='lib/string.c' line='771' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__task_pid_nr_ns' mangled-name='__task_pid_nr_ns' filepath='kernel/pid.c' line='493' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__task_pid_nr_ns'>
+        <parameter type-id='f23e2572' name='task' filepath='kernel/pid.c' line='493' column='1'/>
+        <parameter type-id='ce78cf46' name='type' filepath='kernel/pid.c' line='493' column='1'/>
+        <parameter type-id='b816e1d0' name='ns' filepath='kernel/pid.c' line='494' column='1'/>
+        <return type-id='587f89d2'/>
+      </function-decl>
+      <function-decl name='__tasklet_hi_schedule' mangled-name='__tasklet_hi_schedule' filepath='kernel/softirq.c' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__tasklet_hi_schedule'>
+        <parameter type-id='59f1923f' name='t' filepath='kernel/softirq.c' line='537' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__tasklet_schedule' mangled-name='__tasklet_schedule' filepath='kernel/softirq.c' line='530' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__tasklet_schedule'>
+        <parameter type-id='59f1923f' name='t' filepath='kernel/softirq.c' line='530' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__trace_bprintk' mangled-name='__trace_bprintk' filepath='kernel/trace/trace_printk.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__trace_bprintk'>
+        <parameter type-id='7359adad' name='ip' filepath='kernel/trace/trace_printk.c' line='200' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/trace/trace_printk.c' line='200' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_arm64_serror_panic' mangled-name='__traceiter_android_rvh_arm64_serror_panic' filepath='include/trace/hooks/traps.h' line='24' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_arm64_serror_panic'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_bad_mode' mangled-name='__traceiter_android_rvh_bad_mode' filepath='include/trace/hooks/traps.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_bad_mode'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
+        <parameter type-id='95e97e5e' name='reason' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_cgroup_force_kthread_migration' mangled-name='__traceiter_android_rvh_cgroup_force_kthread_migration' filepath='include/trace/hooks/cgroup.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cgroup_force_kthread_migration'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
+        <parameter type-id='46ff135d' name='dst_cgrp' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
+        <parameter type-id='d8e6b335' name='force_migration' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_check_preempt_wakeup' mangled-name='__traceiter_android_rvh_check_preempt_wakeup' filepath='include/trace/hooks/sched.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_check_preempt_wakeup'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='d8e6b335' name='preempt' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='d8e6b335' name='nopreempt' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='ff2b3d10' name='pse' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='95e97e5e' name='next_buddy_marked' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <parameter type-id='f0981eeb' name='granularity' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_cpu_cgroup_online' mangled-name='__traceiter_android_rvh_cpu_cgroup_online' filepath='include/trace/hooks/sched.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cpu_cgroup_online'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='212' column='1'/>
+        <parameter type-id='cfff5953' name='css' filepath='include/trace/hooks/sched.h' line='212' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_cpu_overutilized' mangled-name='__traceiter_android_rvh_cpu_overutilized' filepath='include/trace/hooks/sched.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cpu_overutilized'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='124' column='1'/>
+        <parameter type-id='95e97e5e' name='cpu' filepath='include/trace/hooks/sched.h' line='124' column='1'/>
+        <parameter type-id='7292109c' name='overutilized' filepath='include/trace/hooks/sched.h' line='124' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_dequeue_task' mangled-name='__traceiter_android_rvh_dequeue_task' filepath='include/trace/hooks/sched.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_dequeue_task'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_dequeue_task_fair' mangled-name='__traceiter_android_rvh_dequeue_task_fair' filepath='include/trace/hooks/sched.h' line='372' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_dequeue_task_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_die_kernel_fault' mangled-name='__traceiter_android_rvh_die_kernel_fault' filepath='include/trace/hooks/fault.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_die_kernel_fault'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
+        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_do_mem_abort' mangled-name='__traceiter_android_rvh_do_mem_abort' filepath='include/trace/hooks/fault.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_mem_abort'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
+        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_do_sea' mangled-name='__traceiter_android_rvh_do_sea' filepath='include/trace/hooks/fault.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_sea'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
+        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_do_sp_pc_abort' mangled-name='__traceiter_android_rvh_do_sp_pc_abort' filepath='include/trace/hooks/fault.h' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_sp_pc_abort'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
+        <parameter type-id='b50a4934' name='user' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_do_undefinstr' mangled-name='__traceiter_android_rvh_do_undefinstr' filepath='include/trace/hooks/traps.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_undefinstr'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='15' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='15' column='1'/>
+        <parameter type-id='b50a4934' name='user' filepath='include/trace/hooks/traps.h' line='15' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_enqueue_task' mangled-name='__traceiter_android_rvh_enqueue_task' filepath='include/trace/hooks/sched.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_enqueue_task'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_enqueue_task_fair' mangled-name='__traceiter_android_rvh_enqueue_task_fair' filepath='include/trace/hooks/sched.h' line='368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_enqueue_task_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_find_energy_efficient_cpu' mangled-name='__traceiter_android_rvh_find_energy_efficient_cpu' filepath='include/trace/hooks/sched.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_find_energy_efficient_cpu'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
+        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
+        <parameter type-id='95e97e5e' name='sync' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
+        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_irqs_disable' mangled-name='__traceiter_android_rvh_irqs_disable' filepath='include/trace/hooks/preemptirq.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_irqs_disable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='22' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='22' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='22' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_irqs_enable' mangled-name='__traceiter_android_rvh_irqs_enable' filepath='include/trace/hooks/preemptirq.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_irqs_enable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='26' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='26' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='26' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_post_init_entity_util_avg' mangled-name='__traceiter_android_rvh_post_init_entity_util_avg' filepath='include/trace/hooks/sched.h' line='329' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_post_init_entity_util_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='329' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='329' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_preempt_disable' mangled-name='__traceiter_android_rvh_preempt_disable' filepath='include/trace/hooks/preemptirq.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_preempt_disable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='14' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='14' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='14' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_preempt_enable' mangled-name='__traceiter_android_rvh_preempt_enable' filepath='include/trace/hooks/preemptirq.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_preempt_enable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_sched_fork' mangled-name='__traceiter_android_rvh_sched_fork' filepath='include/trace/hooks/sched.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_sched_fork'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='149' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='149' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_select_task_rq_fair' mangled-name='__traceiter_android_rvh_select_task_rq_fair' filepath='include/trace/hooks/sched.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_select_task_rq_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+        <parameter type-id='95e97e5e' name='sd_flag' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_select_task_rq_rt' mangled-name='__traceiter_android_rvh_select_task_rq_rt' filepath='include/trace/hooks/sched.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_select_task_rq_rt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+        <parameter type-id='95e97e5e' name='sd_flag' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_set_iowait' mangled-name='__traceiter_android_rvh_set_iowait' filepath='include/trace/hooks/sched.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_set_iowait'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='120' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='120' column='1'/>
+        <parameter type-id='7292109c' name='should_iowait_boost' filepath='include/trace/hooks/sched.h' line='120' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' mangled-name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' filepath='include/trace/hooks/typec.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_chk_contaminant'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
+        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
+        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_typec_tcpci_get_vbus' mangled-name='__traceiter_android_rvh_typec_tcpci_get_vbus' filepath='include/trace/hooks/typec.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_get_vbus'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
+        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
+        <parameter type-id='7292109c' name='vbus' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
+        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_uclamp_eff_get' mangled-name='__traceiter_android_rvh_uclamp_eff_get' filepath='include/trace/hooks/sched.h' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_uclamp_eff_get'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+        <parameter type-id='db819146' name='clamp_id' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+        <parameter type-id='a1ac03ea' name='uclamp_max' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+        <parameter type-id='a1ac03ea' name='uclamp_eff' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_uclamp_rq_util_with' mangled-name='__traceiter_android_rvh_uclamp_rq_util_with' filepath='include/trace/hooks/sched.h' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_uclamp_rq_util_with'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
+        <parameter type-id='7359adad' name='util' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
+        <parameter type-id='7359adad' name='min_util' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
+        <parameter type-id='7359adad' name='max_util' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
+        <parameter type-id='1d2c2b85' name='ret' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_ufs_complete_init' mangled-name='__traceiter_android_rvh_ufs_complete_init' filepath='include/trace/hooks/ufshcd.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_ufs_complete_init'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='22' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='22' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_ufs_reprogram_all_keys' mangled-name='__traceiter_android_rvh_ufs_reprogram_all_keys' filepath='include/trace/hooks/ufshcd.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_ufs_reprogram_all_keys'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_util_est_update' mangled-name='__traceiter_android_rvh_util_est_update' filepath='include/trace/hooks/sched.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_util_est_update'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
+        <parameter type-id='b50a4934' name='task_sleep' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
+        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_aes_decrypt' mangled-name='__traceiter_android_vh_aes_decrypt' filepath='include/trace/hooks/fips140.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_decrypt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
+        <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
+        <parameter type-id='bbaf3419' name='in' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
+        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_aes_encrypt' mangled-name='__traceiter_android_vh_aes_encrypt' filepath='include/trace/hooks/fips140.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_encrypt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
+        <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
+        <parameter type-id='bbaf3419' name='in' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
+        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_aes_expandkey' mangled-name='__traceiter_android_vh_aes_expandkey' filepath='include/trace/hooks/fips140.h' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_expandkey'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
+        <parameter type-id='21370cb4' name='ctx' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
+        <parameter type-id='bbaf3419' name='in_key' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
+        <parameter type-id='f0981eeb' name='key_len' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_arch_set_freq_scale' mangled-name='__traceiter_android_vh_arch_set_freq_scale' filepath='include/trace/hooks/topology.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_arch_set_freq_scale'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
+        <parameter type-id='5f8a1ac4' name='cpus' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
+        <parameter type-id='7359adad' name='max' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
+        <parameter type-id='1d2c2b85' name='scale' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_cma_alloc_finish' mangled-name='__traceiter_android_vh_cma_alloc_finish' filepath='include/trace/hooks/mm.h' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cma_alloc_finish'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <parameter type-id='6f67b38a' name='cma' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <parameter type-id='7359adad' name='count' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <parameter type-id='f0981eeb' name='align' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <parameter type-id='9b7c55ef' name='ts' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_cma_alloc_start' mangled-name='__traceiter_android_vh_cma_alloc_start' filepath='include/trace/hooks/mm.h' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cma_alloc_start'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='28' column='1'/>
+        <parameter type-id='842ac8d6' name='ts' filepath='include/trace/hooks/mm.h' line='28' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_cpu_idle_enter' mangled-name='__traceiter_android_vh_cpu_idle_enter' filepath='include/trace/hooks/cpuidle.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cpu_idle_enter'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cpuidle.h' line='15' column='1'/>
+        <parameter type-id='7292109c' name='state' filepath='include/trace/hooks/cpuidle.h' line='15' column='1'/>
+        <parameter type-id='1b0e1d00' name='dev' filepath='include/trace/hooks/cpuidle.h' line='15' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_cpu_idle_exit' mangled-name='__traceiter_android_vh_cpu_idle_exit' filepath='include/trace/hooks/cpuidle.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cpu_idle_exit'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cpuidle.h' line='18' column='1'/>
+        <parameter type-id='95e97e5e' name='state' filepath='include/trace/hooks/cpuidle.h' line='18' column='1'/>
+        <parameter type-id='1b0e1d00' name='dev' filepath='include/trace/hooks/cpuidle.h' line='18' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_dup_task_struct' mangled-name='__traceiter_android_vh_dup_task_struct' filepath='include/trace/hooks/sched.h' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_dup_task_struct'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='384' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='384' column='1'/>
+        <parameter type-id='f23e2572' name='orig' filepath='include/trace/hooks/sched.h' line='384' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_enable_thermal_genl_check' mangled-name='__traceiter_android_vh_enable_thermal_genl_check' filepath='include/trace/hooks/thermal.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_enable_thermal_genl_check'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
+        <parameter type-id='95e97e5e' name='event' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
+        <parameter type-id='95e97e5e' name='tz_id' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
+        <parameter type-id='7292109c' name='enable_thermal_genl' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ep_create_wakeup_source' mangled-name='__traceiter_android_vh_ep_create_wakeup_source' filepath='include/trace/hooks/fs.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ep_create_wakeup_source'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
+        <parameter type-id='26a90f95' name='name' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ipi_stop' mangled-name='__traceiter_android_vh_ipi_stop' filepath='include/trace/hooks/debug.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ipi_stop'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/debug.h' line='16' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/debug.h' line='16' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_meminfo_proc_show' mangled-name='__traceiter_android_vh_meminfo_proc_show' filepath='include/trace/hooks/mm.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_meminfo_proc_show'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='51' column='1'/>
+        <parameter type-id='f8dc9def' name='m' filepath='include/trace/hooks/mm.h' line='51' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' mangled-name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' filepath='include/trace/hooks/mmc_core.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_mmc_blk_mq_rw_recovery'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mmc_core.h' line='20' column='1'/>
+        <parameter type-id='13d38dcb' name='card' filepath='include/trace/hooks/mmc_core.h' line='20' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_mmc_blk_reset' mangled-name='__traceiter_android_vh_mmc_blk_reset' filepath='include/trace/hooks/mmc_core.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_mmc_blk_reset'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
+        <parameter type-id='dd575c43' name='host' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
+        <parameter type-id='95e97e5e' name='err' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
+        <parameter type-id='d8e6b335' name='allow' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_of_i2c_get_board_info' mangled-name='__traceiter_android_vh_of_i2c_get_board_info' filepath='include/trace/hooks/i2c.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_of_i2c_get_board_info'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/i2c.h' line='13' column='1'/>
+        <parameter type-id='9a537bbe' name='node' filepath='include/trace/hooks/i2c.h' line='13' column='1'/>
+        <parameter type-id='7d3cd834' name='dev_name' filepath='include/trace/hooks/i2c.h' line='13' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_pagecache_get_page' mangled-name='__traceiter_android_vh_pagecache_get_page' filepath='include/trace/hooks/mm.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_pagecache_get_page'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+        <parameter type-id='f57039f0' name='mapping' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+        <parameter type-id='95e97e5e' name='fgp_flags' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_rmqueue' mangled-name='__traceiter_android_vh_rmqueue' filepath='include/trace/hooks/mm.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_rmqueue'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <parameter type-id='0a0aff97' name='preferred_zone' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <parameter type-id='0a0aff97' name='zone' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_flags' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <parameter type-id='f0981eeb' name='alloc_flags' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <parameter type-id='95e97e5e' name='migratetype' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_setscheduler_uclamp' mangled-name='__traceiter_android_vh_setscheduler_uclamp' filepath='include/trace/hooks/sched.h' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_setscheduler_uclamp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
+        <parameter type-id='95e97e5e' name='clamp_id' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
+        <parameter type-id='f0981eeb' name='value' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_sha256' mangled-name='__traceiter_android_vh_sha256' filepath='include/trace/hooks/fips140.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sha256'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
+        <parameter type-id='bbaf3419' name='data' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
+        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_snd_compr_use_pause_in_drain' mangled-name='__traceiter_android_vh_snd_compr_use_pause_in_drain' filepath='include/trace/hooks/snd_compr.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_snd_compr_use_pause_in_drain'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/snd_compr.h' line='18' column='1'/>
+        <parameter type-id='d8e6b335' name='use_pause_in_drain' filepath='include/trace/hooks/snd_compr.h' line='18' column='1'/>
+        <parameter type-id='d8e6b335' name='leave_draining' filepath='include/trace/hooks/snd_compr.h' line='18' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_sound_usb_support_cpu_suspend' mangled-name='__traceiter_android_vh_sound_usb_support_cpu_suspend' filepath='include/trace/hooks/sound.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sound_usb_support_cpu_suspend'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
+        <parameter type-id='95e97e5e' name='direction' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
+        <parameter type-id='d8e6b335' name='is_support' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_sysrq_crash' mangled-name='__traceiter_android_vh_sysrq_crash' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sysrq_crash'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_thermal_pm_notify_suspend' mangled-name='__traceiter_android_vh_thermal_pm_notify_suspend' filepath='include/trace/hooks/thermal.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_thermal_pm_notify_suspend'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/thermal.h' line='19' column='1'/>
+        <parameter type-id='404b1300' name='tz' filepath='include/trace/hooks/thermal.h' line='19' column='1'/>
+        <parameter type-id='7292109c' name='irq_wakeable' filepath='include/trace/hooks/thermal.h' line='19' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_timerfd_create' mangled-name='__traceiter_android_vh_timerfd_create' filepath='include/trace/hooks/fs.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_timerfd_create'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
+        <parameter type-id='26a90f95' name='name' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_typec_store_partner_src_caps' mangled-name='__traceiter_android_vh_typec_store_partner_src_caps' filepath='include/trace/hooks/typec.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_store_partner_src_caps'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
+        <parameter type-id='426e425b' name='port' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
+        <parameter type-id='807869d3' name='nr_source_caps' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
+        <parameter type-id='428e8d18' name='source_caps' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_typec_tcpci_override_toggling' mangled-name='__traceiter_android_vh_typec_tcpci_override_toggling' filepath='include/trace/hooks/typec.h' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpci_override_toggling'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
+        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
+        <parameter type-id='7292109c' name='override_toggling' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_typec_tcpm_get_timer' mangled-name='__traceiter_android_vh_typec_tcpm_get_timer' filepath='include/trace/hooks/typec.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_get_timer'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
+        <parameter type-id='80f4b756' name='state' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
+        <parameter type-id='014ea5fb' name='timer' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
+        <parameter type-id='807869d3' name='msecs' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_typec_tcpm_log' mangled-name='__traceiter_android_vh_typec_tcpm_log' filepath='include/trace/hooks/typec.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_log'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='61' column='1'/>
+        <parameter type-id='80f4b756' name='log' filepath='include/trace/hooks/typec.h' line='61' column='1'/>
+        <parameter type-id='d8e6b335' name='bypass' filepath='include/trace/hooks/typec.h' line='61' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_typec_tcpm_modify_src_caps' mangled-name='__traceiter_android_vh_typec_tcpm_modify_src_caps' filepath='include/trace/hooks/typec.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_modify_src_caps'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
+        <parameter type-id='807869d3' name='nr_src_pdo' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
+        <parameter type-id='428e8d18' name='src_pdo' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
+        <parameter type-id='d8e6b335' name='modified' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_check_int_errors' mangled-name='__traceiter_android_vh_ufs_check_int_errors' filepath='include/trace/hooks/ufshcd.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_check_int_errors'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='57' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='57' column='1'/>
+        <parameter type-id='b50a4934' name='queue_eh_work' filepath='include/trace/hooks/ufshcd.h' line='57' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_compl_command' mangled-name='__traceiter_android_vh_ufs_compl_command' filepath='include/trace/hooks/ufshcd.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_compl_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='43' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='43' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='43' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_fill_prdt' mangled-name='__traceiter_android_vh_ufs_fill_prdt' filepath='include/trace/hooks/ufshcd.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_fill_prdt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
+        <parameter type-id='f0981eeb' name='segments' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_prepare_command' mangled-name='__traceiter_android_vh_ufs_prepare_command' filepath='include/trace/hooks/ufshcd.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_prepare_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_send_command' mangled-name='__traceiter_android_vh_ufs_send_command' filepath='include/trace/hooks/ufshcd.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='39' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='39' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='39' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_send_tm_command' mangled-name='__traceiter_android_vh_ufs_send_tm_command' filepath='include/trace/hooks/ufshcd.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_tm_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
+        <parameter type-id='95e97e5e' name='tag' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_send_uic_command' mangled-name='__traceiter_android_vh_ufs_send_uic_command' filepath='include/trace/hooks/ufshcd.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_uic_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
+        <parameter type-id='cdf785b8' name='ucmd' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_ufs_update_sysfs' mangled-name='__traceiter_android_vh_ufs_update_sysfs' filepath='include/trace/hooks/ufshcd.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_update_sysfs'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='35' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='35' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_usb_dev_resume' mangled-name='__traceiter_android_vh_usb_dev_resume' filepath='include/trace/hooks/usb.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_usb_dev_resume'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
+        <parameter type-id='08496218' name='msg' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
+        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_usb_dev_suspend' mangled-name='__traceiter_android_vh_usb_dev_suspend' filepath='include/trace/hooks/usb.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_usb_dev_suspend'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
+        <parameter type-id='08496218' name='msg' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
+        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_clock_set_rate' mangled-name='__traceiter_clock_set_rate' filepath='include/trace/events/power.h' line='322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_clock_set_rate'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/power.h' line='322' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='include/trace/events/power.h' line='322' column='1'/>
+        <parameter type-id='f0981eeb' name='state' filepath='include/trace/events/power.h' line='322' column='1'/>
+        <parameter type-id='f0981eeb' name='cpu_id' filepath='include/trace/events/power.h' line='322' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_cpu_frequency' mangled-name='__traceiter_cpu_frequency' filepath='include/trace/events/power.h' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_cpu_frequency'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/power.h' line='145' column='1'/>
+        <parameter type-id='f0981eeb' name='frequency' filepath='include/trace/events/power.h' line='145' column='1'/>
+        <parameter type-id='f0981eeb' name='cpu_id' filepath='include/trace/events/power.h' line='145' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_device_pm_callback_end' mangled-name='__traceiter_device_pm_callback_end' filepath='include/trace/events/power.h' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_device_pm_callback_end'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/power.h' line='204' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='include/trace/events/power.h' line='204' column='1'/>
+        <parameter type-id='95e97e5e' name='error' filepath='include/trace/events/power.h' line='204' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_device_pm_callback_start' mangled-name='__traceiter_device_pm_callback_start' filepath='include/trace/events/power.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_device_pm_callback_start'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/power.h' line='176' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='include/trace/events/power.h' line='176' column='1'/>
+        <parameter type-id='80f4b756' name='pm_ops' filepath='include/trace/events/power.h' line='176' column='1'/>
+        <parameter type-id='95e97e5e' name='event' filepath='include/trace/events/power.h' line='176' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_dma_fence_emit' mangled-name='__traceiter_dma_fence_emit' filepath='include/trace/events/dma_fence.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_dma_fence_emit'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/dma_fence.h' line='37' column='1'/>
+        <parameter type-id='28271da3' name='fence' filepath='include/trace/events/dma_fence.h' line='37' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_dwc3_readl' mangled-name='__traceiter_dwc3_readl' filepath='drivers/usb/dwc3/./trace.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_dwc3_readl'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='drivers/usb/dwc3/./trace.h' line='39' column='1'/>
+        <parameter type-id='eaa32e2f' name='base' filepath='drivers/usb/dwc3/./trace.h' line='39' column='1'/>
+        <parameter type-id='19c2251e' name='offset' filepath='drivers/usb/dwc3/./trace.h' line='39' column='1'/>
+        <parameter type-id='19c2251e' name='value' filepath='drivers/usb/dwc3/./trace.h' line='39' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_dwc3_writel' mangled-name='__traceiter_dwc3_writel' filepath='drivers/usb/dwc3/./trace.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_dwc3_writel'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='drivers/usb/dwc3/./trace.h' line='44' column='1'/>
+        <parameter type-id='eaa32e2f' name='base' filepath='drivers/usb/dwc3/./trace.h' line='44' column='1'/>
+        <parameter type-id='19c2251e' name='offset' filepath='drivers/usb/dwc3/./trace.h' line='44' column='1'/>
+        <parameter type-id='19c2251e' name='value' filepath='drivers/usb/dwc3/./trace.h' line='44' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_gpu_mem_total' mangled-name='__traceiter_gpu_mem_total' filepath='include/trace/events/gpu_mem.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_gpu_mem_total'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/gpu_mem.h' line='30' column='1'/>
+        <parameter type-id='8f92235e' name='gpu_id' filepath='include/trace/events/gpu_mem.h' line='30' column='1'/>
+        <parameter type-id='8f92235e' name='pid' filepath='include/trace/events/gpu_mem.h' line='30' column='1'/>
+        <parameter type-id='9c313c2d' name='size' filepath='include/trace/events/gpu_mem.h' line='30' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_mm_vmscan_direct_reclaim_begin' mangled-name='__traceiter_mm_vmscan_direct_reclaim_begin' filepath='include/trace/events/vmscan.h' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_mm_vmscan_direct_reclaim_begin'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/vmscan.h' line='122' column='1'/>
+        <parameter type-id='95e97e5e' name='order' filepath='include/trace/events/vmscan.h' line='122' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_flags' filepath='include/trace/events/vmscan.h' line='122' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_mm_vmscan_direct_reclaim_end' mangled-name='__traceiter_mm_vmscan_direct_reclaim_end' filepath='include/trace/events/vmscan.h' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_mm_vmscan_direct_reclaim_end'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/vmscan.h' line='162' column='1'/>
+        <parameter type-id='7359adad' name='nr_reclaimed' filepath='include/trace/events/vmscan.h' line='162' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_pelt_cfs_tp' mangled-name='__traceiter_pelt_cfs_tp' filepath='include/trace/events/sched.h' line='636' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_pelt_cfs_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='636' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/events/sched.h' line='636' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_pelt_dl_tp' mangled-name='__traceiter_pelt_dl_tp' filepath='include/trace/events/sched.h' line='644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_pelt_dl_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='644' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/events/sched.h' line='644' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_pelt_irq_tp' mangled-name='__traceiter_pelt_irq_tp' filepath='include/trace/events/sched.h' line='652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_pelt_irq_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='652' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/events/sched.h' line='652' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_pelt_rt_tp' mangled-name='__traceiter_pelt_rt_tp' filepath='include/trace/events/sched.h' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_pelt_rt_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='640' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/events/sched.h' line='640' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_pelt_se_tp' mangled-name='__traceiter_pelt_se_tp' filepath='include/trace/events/sched.h' line='656' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_pelt_se_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='656' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/events/sched.h' line='656' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_rwmmio_post_read' mangled-name='__traceiter_rwmmio_post_read' filepath='include/trace/events/rwmmio.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_rwmmio_post_read'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/rwmmio.h' line='59' column='1'/>
+        <parameter type-id='7359adad' name='fn' filepath='include/trace/events/rwmmio.h' line='59' column='1'/>
+        <parameter type-id='91ce1af9' name='val' filepath='include/trace/events/rwmmio.h' line='59' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='include/trace/events/rwmmio.h' line='59' column='1'/>
+        <parameter type-id='60f8eab0' name='addr' filepath='include/trace/events/rwmmio.h' line='59' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_rwmmio_read' mangled-name='__traceiter_rwmmio_read' filepath='include/trace/events/rwmmio.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_rwmmio_read'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/rwmmio.h' line='37' column='1'/>
+        <parameter type-id='7359adad' name='fn' filepath='include/trace/events/rwmmio.h' line='37' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='include/trace/events/rwmmio.h' line='37' column='1'/>
+        <parameter type-id='60f8eab0' name='addr' filepath='include/trace/events/rwmmio.h' line='37' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_rwmmio_write' mangled-name='__traceiter_rwmmio_write' filepath='include/trace/events/rwmmio.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_rwmmio_write'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/rwmmio.h' line='13' column='1'/>
+        <parameter type-id='7359adad' name='fn' filepath='include/trace/events/rwmmio.h' line='13' column='1'/>
+        <parameter type-id='91ce1af9' name='val' filepath='include/trace/events/rwmmio.h' line='13' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='include/trace/events/rwmmio.h' line='13' column='1'/>
+        <parameter type-id='fe09dd29' name='addr' filepath='include/trace/events/rwmmio.h' line='13' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_sched_cpu_capacity_tp' mangled-name='__traceiter_sched_cpu_capacity_tp' filepath='include/trace/events/sched.h' line='660' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_sched_cpu_capacity_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='660' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/events/sched.h' line='660' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_sched_overutilized_tp' mangled-name='__traceiter_sched_overutilized_tp' filepath='include/trace/events/sched.h' line='664' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_sched_overutilized_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='664' column='1'/>
+        <parameter type-id='c13bca88' name='rd' filepath='include/trace/events/sched.h' line='664' column='1'/>
+        <parameter type-id='b50a4934' name='overutilized' filepath='include/trace/events/sched.h' line='664' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_sched_switch' mangled-name='__traceiter_sched_switch' filepath='include/trace/events/sched.h' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_sched_switch'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='138' column='1'/>
+        <parameter type-id='b50a4934' name='preempt' filepath='include/trace/events/sched.h' line='138' column='1'/>
+        <parameter type-id='f23e2572' name='prev' filepath='include/trace/events/sched.h' line='138' column='1'/>
+        <parameter type-id='f23e2572' name='next' filepath='include/trace/events/sched.h' line='138' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_sched_util_est_cfs_tp' mangled-name='__traceiter_sched_util_est_cfs_tp' filepath='include/trace/events/sched.h' line='668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_sched_util_est_cfs_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='668' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/events/sched.h' line='668' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_sched_util_est_se_tp' mangled-name='__traceiter_sched_util_est_se_tp' filepath='include/trace/events/sched.h' line='672' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_sched_util_est_se_tp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/sched.h' line='672' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/events/sched.h' line='672' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_suspend_resume' mangled-name='__traceiter_suspend_resume' filepath='include/trace/events/power.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_suspend_resume'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/power.h' line='226' column='1'/>
+        <parameter type-id='80f4b756' name='action' filepath='include/trace/events/power.h' line='226' column='1'/>
+        <parameter type-id='95e97e5e' name='val' filepath='include/trace/events/power.h' line='226' column='1'/>
+        <parameter type-id='b50a4934' name='start' filepath='include/trace/events/power.h' line='226' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_xdp_exception' mangled-name='__traceiter_xdp_exception' filepath='include/trace/events/xdp.h' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_xdp_exception'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/events/xdp.h' line='28' column='1'/>
+        <parameter type-id='2ce52478' name='dev' filepath='include/trace/events/xdp.h' line='28' column='1'/>
+        <parameter type-id='18145275' name='xdp' filepath='include/trace/events/xdp.h' line='28' column='1'/>
+        <parameter type-id='19c2251e' name='act' filepath='include/trace/events/xdp.h' line='28' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='__tracepoint_android_rvh_arm64_serror_panic' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_arm64_serror_panic' visibility='default' filepath='include/trace/hooks/traps.h' line='24' column='1' elf-symbol-id='__tracepoint_android_rvh_arm64_serror_panic'/>
+      <var-decl name='__tracepoint_android_rvh_bad_mode' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_bad_mode' visibility='default' filepath='include/trace/hooks/traps.h' line='20' column='1' elf-symbol-id='__tracepoint_android_rvh_bad_mode'/>
+      <var-decl name='__tracepoint_android_rvh_cgroup_force_kthread_migration' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cgroup_force_kthread_migration' visibility='default' filepath='include/trace/hooks/cgroup.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_cgroup_force_kthread_migration'/>
+      <var-decl name='__tracepoint_android_rvh_check_preempt_wakeup' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_check_preempt_wakeup' visibility='default' filepath='include/trace/hooks/sched.h' line='269' column='1' elf-symbol-id='__tracepoint_android_rvh_check_preempt_wakeup'/>
+      <var-decl name='__tracepoint_android_rvh_cpu_cgroup_online' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_cgroup_online' visibility='default' filepath='include/trace/hooks/sched.h' line='212' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_cgroup_online'/>
+      <var-decl name='__tracepoint_android_rvh_cpu_overutilized' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_overutilized' visibility='default' filepath='include/trace/hooks/sched.h' line='124' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_overutilized'/>
+      <var-decl name='__tracepoint_android_rvh_dequeue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='39' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task'/>
+      <var-decl name='__tracepoint_android_rvh_dequeue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='372' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task_fair'/>
+      <var-decl name='__tracepoint_android_rvh_die_kernel_fault' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_die_kernel_fault' visibility='default' filepath='include/trace/hooks/fault.h' line='15' column='1' elf-symbol-id='__tracepoint_android_rvh_die_kernel_fault'/>
+      <var-decl name='__tracepoint_android_rvh_do_mem_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_mem_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='23' column='1' elf-symbol-id='__tracepoint_android_rvh_do_mem_abort'/>
+      <var-decl name='__tracepoint_android_rvh_do_sea' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sea' visibility='default' filepath='include/trace/hooks/fault.h' line='19' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sea'/>
+      <var-decl name='__tracepoint_android_rvh_do_sp_pc_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sp_pc_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='27' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sp_pc_abort'/>
+      <var-decl name='__tracepoint_android_rvh_do_undefinstr' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_undefinstr' visibility='default' filepath='include/trace/hooks/traps.h' line='15' column='1' elf-symbol-id='__tracepoint_android_rvh_do_undefinstr'/>
+      <var-decl name='__tracepoint_android_rvh_enqueue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_enqueue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='35' column='1' elf-symbol-id='__tracepoint_android_rvh_enqueue_task'/>
+      <var-decl name='__tracepoint_android_rvh_enqueue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_enqueue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='368' column='1' elf-symbol-id='__tracepoint_android_rvh_enqueue_task_fair'/>
+      <var-decl name='__tracepoint_android_rvh_find_energy_efficient_cpu' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_find_energy_efficient_cpu' visibility='default' filepath='include/trace/hooks/sched.h' line='116' column='1' elf-symbol-id='__tracepoint_android_rvh_find_energy_efficient_cpu'/>
+      <var-decl name='__tracepoint_android_rvh_irqs_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_disable'/>
+      <var-decl name='__tracepoint_android_rvh_irqs_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_enable'/>
+      <var-decl name='__tracepoint_android_rvh_post_init_entity_util_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_post_init_entity_util_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='329' column='1' elf-symbol-id='__tracepoint_android_rvh_post_init_entity_util_avg'/>
+      <var-decl name='__tracepoint_android_rvh_preempt_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_disable'/>
+      <var-decl name='__tracepoint_android_rvh_preempt_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_enable'/>
+      <var-decl name='__tracepoint_android_rvh_sched_fork' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_sched_fork' visibility='default' filepath='include/trace/hooks/sched.h' line='149' column='1' elf-symbol-id='__tracepoint_android_rvh_sched_fork'/>
+      <var-decl name='__tracepoint_android_rvh_select_task_rq_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_fair'/>
+      <var-decl name='__tracepoint_android_rvh_select_task_rq_rt' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_rt' visibility='default' filepath='include/trace/hooks/sched.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_rt'/>
+      <var-decl name='__tracepoint_android_rvh_set_iowait' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_set_iowait' visibility='default' filepath='include/trace/hooks/sched.h' line='120' column='1' elf-symbol-id='__tracepoint_android_rvh_set_iowait'/>
+      <var-decl name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' visibility='default' filepath='include/trace/hooks/typec.h' line='32' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_chk_contaminant'/>
+      <var-decl name='__tracepoint_android_rvh_typec_tcpci_get_vbus' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_get_vbus' visibility='default' filepath='include/trace/hooks/typec.h' line='43' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_get_vbus'/>
+      <var-decl name='__tracepoint_android_rvh_uclamp_eff_get' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_eff_get' visibility='default' filepath='include/trace/hooks/sched.h' line='286' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_eff_get'/>
+      <var-decl name='__tracepoint_android_rvh_uclamp_rq_util_with' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_rq_util_with' visibility='default' filepath='include/trace/hooks/sched.h' line='296' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_rq_util_with'/>
+      <var-decl name='__tracepoint_android_rvh_ufs_complete_init' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_complete_init' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_complete_init'/>
+      <var-decl name='__tracepoint_android_rvh_ufs_reprogram_all_keys' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_reprogram_all_keys' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_reprogram_all_keys'/>
+      <var-decl name='__tracepoint_android_rvh_util_est_update' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_util_est_update' visibility='default' filepath='include/trace/hooks/sched.h' line='317' column='1' elf-symbol-id='__tracepoint_android_rvh_util_est_update'/>
+      <var-decl name='__tracepoint_android_vh_aes_decrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_decrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_aes_decrypt'/>
+      <var-decl name='__tracepoint_android_vh_aes_encrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_encrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='34' column='1' elf-symbol-id='__tracepoint_android_vh_aes_encrypt'/>
+      <var-decl name='__tracepoint_android_vh_aes_expandkey' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_expandkey' visibility='default' filepath='include/trace/hooks/fips140.h' line='27' column='1' elf-symbol-id='__tracepoint_android_vh_aes_expandkey'/>
+      <var-decl name='__tracepoint_android_vh_arch_set_freq_scale' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_arch_set_freq_scale' visibility='default' filepath='include/trace/hooks/topology.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_arch_set_freq_scale'/>
+      <var-decl name='__tracepoint_android_vh_cma_alloc_finish' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cma_alloc_finish' visibility='default' filepath='include/trace/hooks/mm.h' line='31' column='1' elf-symbol-id='__tracepoint_android_vh_cma_alloc_finish'/>
+      <var-decl name='__tracepoint_android_vh_cma_alloc_start' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cma_alloc_start' visibility='default' filepath='include/trace/hooks/mm.h' line='28' column='1' elf-symbol-id='__tracepoint_android_vh_cma_alloc_start'/>
+      <var-decl name='__tracepoint_android_vh_cpu_idle_enter' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cpu_idle_enter' visibility='default' filepath='include/trace/hooks/cpuidle.h' line='15' column='1' elf-symbol-id='__tracepoint_android_vh_cpu_idle_enter'/>
+      <var-decl name='__tracepoint_android_vh_cpu_idle_exit' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cpu_idle_exit' visibility='default' filepath='include/trace/hooks/cpuidle.h' line='18' column='1' elf-symbol-id='__tracepoint_android_vh_cpu_idle_exit'/>
+      <var-decl name='__tracepoint_android_vh_dup_task_struct' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_dup_task_struct' visibility='default' filepath='include/trace/hooks/sched.h' line='384' column='1' elf-symbol-id='__tracepoint_android_vh_dup_task_struct'/>
+      <var-decl name='__tracepoint_android_vh_enable_thermal_genl_check' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_enable_thermal_genl_check' visibility='default' filepath='include/trace/hooks/thermal.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_enable_thermal_genl_check'/>
+      <var-decl name='__tracepoint_android_vh_ep_create_wakeup_source' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ep_create_wakeup_source' visibility='default' filepath='include/trace/hooks/fs.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_ep_create_wakeup_source'/>
+      <var-decl name='__tracepoint_android_vh_ipi_stop' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ipi_stop' visibility='default' filepath='include/trace/hooks/debug.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_ipi_stop'/>
+      <var-decl name='__tracepoint_android_vh_meminfo_proc_show' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_meminfo_proc_show' visibility='default' filepath='include/trace/hooks/mm.h' line='51' column='1' elf-symbol-id='__tracepoint_android_vh_meminfo_proc_show'/>
+      <var-decl name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_mq_rw_recovery'/>
+      <var-decl name='__tracepoint_android_vh_mmc_blk_reset' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_reset' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_reset'/>
+      <var-decl name='__tracepoint_android_vh_of_i2c_get_board_info' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_of_i2c_get_board_info' visibility='default' filepath='include/trace/hooks/i2c.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_of_i2c_get_board_info'/>
+      <var-decl name='__tracepoint_android_vh_pagecache_get_page' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pagecache_get_page' visibility='default' filepath='include/trace/hooks/mm.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_pagecache_get_page'/>
+      <var-decl name='__tracepoint_android_vh_rmqueue' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_rmqueue' visibility='default' filepath='include/trace/hooks/mm.h' line='35' column='1' elf-symbol-id='__tracepoint_android_vh_rmqueue'/>
+      <var-decl name='__tracepoint_android_vh_setscheduler_uclamp' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_setscheduler_uclamp' visibility='default' filepath='include/trace/hooks/sched.h' line='404' column='1' elf-symbol-id='__tracepoint_android_vh_setscheduler_uclamp'/>
+      <var-decl name='__tracepoint_android_vh_sha256' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sha256' visibility='default' filepath='include/trace/hooks/fips140.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_sha256'/>
+      <var-decl name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' visibility='default' filepath='include/trace/hooks/snd_compr.h' line='18' column='1' elf-symbol-id='__tracepoint_android_vh_snd_compr_use_pause_in_drain'/>
+      <var-decl name='__tracepoint_android_vh_sound_usb_support_cpu_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sound_usb_support_cpu_suspend' visibility='default' filepath='include/trace/hooks/sound.h' line='12' column='1' elf-symbol-id='__tracepoint_android_vh_sound_usb_support_cpu_suspend'/>
+      <var-decl name='__tracepoint_android_vh_sysrq_crash' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sysrq_crash' visibility='default' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_sysrq_crash'/>
+      <var-decl name='__tracepoint_android_vh_thermal_pm_notify_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_thermal_pm_notify_suspend' visibility='default' filepath='include/trace/hooks/thermal.h' line='19' column='1' elf-symbol-id='__tracepoint_android_vh_thermal_pm_notify_suspend'/>
+      <var-decl name='__tracepoint_android_vh_timerfd_create' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_timerfd_create' visibility='default' filepath='include/trace/hooks/fs.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_timerfd_create'/>
+      <var-decl name='__tracepoint_android_vh_typec_store_partner_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_store_partner_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='51' column='1' elf-symbol-id='__tracepoint_android_vh_typec_store_partner_src_caps'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpci_override_toggling' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpci_override_toggling' visibility='default' filepath='include/trace/hooks/typec.h' line='28' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpci_override_toggling'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpm_get_timer' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_get_timer' visibility='default' filepath='include/trace/hooks/typec.h' line='47' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_get_timer'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpm_log' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_log' visibility='default' filepath='include/trace/hooks/typec.h' line='61' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_log'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpm_modify_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_modify_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='65' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_modify_src_caps'/>
+      <var-decl name='__tracepoint_android_vh_ufs_check_int_errors' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_check_int_errors' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='57' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_check_int_errors'/>
+      <var-decl name='__tracepoint_android_vh_ufs_compl_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_compl_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='43' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_compl_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_fill_prdt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_fill_prdt' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_fill_prdt'/>
+      <var-decl name='__tracepoint_android_vh_ufs_prepare_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_prepare_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='30' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_prepare_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_send_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='39' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_send_tm_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_tm_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='53' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_tm_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_send_uic_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_uic_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='48' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_uic_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_update_sysfs' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_update_sysfs' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='35' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_update_sysfs'/>
+      <var-decl name='__tracepoint_android_vh_usb_dev_resume' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_usb_dev_resume' visibility='default' filepath='include/trace/hooks/usb.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_usb_dev_resume'/>
+      <var-decl name='__tracepoint_android_vh_usb_dev_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_usb_dev_suspend' visibility='default' filepath='include/trace/hooks/usb.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_usb_dev_suspend'/>
+      <var-decl name='__tracepoint_clock_set_rate' type-id='4ca0c298' mangled-name='__tracepoint_clock_set_rate' visibility='default' filepath='include/trace/events/power.h' line='322' column='1' elf-symbol-id='__tracepoint_clock_set_rate'/>
+      <var-decl name='__tracepoint_cpu_frequency' type-id='4ca0c298' mangled-name='__tracepoint_cpu_frequency' visibility='default' filepath='include/trace/events/power.h' line='145' column='1' elf-symbol-id='__tracepoint_cpu_frequency'/>
+      <var-decl name='__tracepoint_device_pm_callback_end' type-id='4ca0c298' mangled-name='__tracepoint_device_pm_callback_end' visibility='default' filepath='include/trace/events/power.h' line='204' column='1' elf-symbol-id='__tracepoint_device_pm_callback_end'/>
+      <var-decl name='__tracepoint_device_pm_callback_start' type-id='4ca0c298' mangled-name='__tracepoint_device_pm_callback_start' visibility='default' filepath='include/trace/events/power.h' line='176' column='1' elf-symbol-id='__tracepoint_device_pm_callback_start'/>
+      <var-decl name='__tracepoint_dma_fence_emit' type-id='4ca0c298' mangled-name='__tracepoint_dma_fence_emit' visibility='default' filepath='include/trace/events/dma_fence.h' line='37' column='1' elf-symbol-id='__tracepoint_dma_fence_emit'/>
+      <var-decl name='__tracepoint_dwc3_readl' type-id='4ca0c298' mangled-name='__tracepoint_dwc3_readl' visibility='default' filepath='drivers/usb/dwc3/./trace.h' line='39' column='1' elf-symbol-id='__tracepoint_dwc3_readl'/>
+      <var-decl name='__tracepoint_dwc3_writel' type-id='4ca0c298' mangled-name='__tracepoint_dwc3_writel' visibility='default' filepath='drivers/usb/dwc3/./trace.h' line='44' column='1' elf-symbol-id='__tracepoint_dwc3_writel'/>
+      <var-decl name='__tracepoint_gpu_mem_total' type-id='4ca0c298' mangled-name='__tracepoint_gpu_mem_total' visibility='default' filepath='include/trace/events/gpu_mem.h' line='30' column='1' elf-symbol-id='__tracepoint_gpu_mem_total'/>
+      <var-decl name='__tracepoint_mm_vmscan_direct_reclaim_begin' type-id='4ca0c298' mangled-name='__tracepoint_mm_vmscan_direct_reclaim_begin' visibility='default' filepath='include/trace/events/vmscan.h' line='122' column='1' elf-symbol-id='__tracepoint_mm_vmscan_direct_reclaim_begin'/>
+      <var-decl name='__tracepoint_mm_vmscan_direct_reclaim_end' type-id='4ca0c298' mangled-name='__tracepoint_mm_vmscan_direct_reclaim_end' visibility='default' filepath='include/trace/events/vmscan.h' line='162' column='1' elf-symbol-id='__tracepoint_mm_vmscan_direct_reclaim_end'/>
+      <var-decl name='__tracepoint_pelt_cfs_tp' type-id='4ca0c298' mangled-name='__tracepoint_pelt_cfs_tp' visibility='default' filepath='include/trace/events/sched.h' line='636' column='1' elf-symbol-id='__tracepoint_pelt_cfs_tp'/>
+      <var-decl name='__tracepoint_pelt_dl_tp' type-id='4ca0c298' mangled-name='__tracepoint_pelt_dl_tp' visibility='default' filepath='include/trace/events/sched.h' line='644' column='1' elf-symbol-id='__tracepoint_pelt_dl_tp'/>
+      <var-decl name='__tracepoint_pelt_irq_tp' type-id='4ca0c298' mangled-name='__tracepoint_pelt_irq_tp' visibility='default' filepath='include/trace/events/sched.h' line='652' column='1' elf-symbol-id='__tracepoint_pelt_irq_tp'/>
+      <var-decl name='__tracepoint_pelt_rt_tp' type-id='4ca0c298' mangled-name='__tracepoint_pelt_rt_tp' visibility='default' filepath='include/trace/events/sched.h' line='640' column='1' elf-symbol-id='__tracepoint_pelt_rt_tp'/>
+      <var-decl name='__tracepoint_pelt_se_tp' type-id='4ca0c298' mangled-name='__tracepoint_pelt_se_tp' visibility='default' filepath='include/trace/events/sched.h' line='656' column='1' elf-symbol-id='__tracepoint_pelt_se_tp'/>
+      <var-decl name='__tracepoint_rwmmio_post_read' type-id='4ca0c298' mangled-name='__tracepoint_rwmmio_post_read' visibility='default' filepath='include/trace/events/rwmmio.h' line='59' column='1' elf-symbol-id='__tracepoint_rwmmio_post_read'/>
+      <var-decl name='__tracepoint_rwmmio_read' type-id='4ca0c298' mangled-name='__tracepoint_rwmmio_read' visibility='default' filepath='include/trace/events/rwmmio.h' line='37' column='1' elf-symbol-id='__tracepoint_rwmmio_read'/>
+      <var-decl name='__tracepoint_rwmmio_write' type-id='4ca0c298' mangled-name='__tracepoint_rwmmio_write' visibility='default' filepath='include/trace/events/rwmmio.h' line='13' column='1' elf-symbol-id='__tracepoint_rwmmio_write'/>
+      <var-decl name='__tracepoint_sched_cpu_capacity_tp' type-id='4ca0c298' mangled-name='__tracepoint_sched_cpu_capacity_tp' visibility='default' filepath='include/trace/events/sched.h' line='660' column='1' elf-symbol-id='__tracepoint_sched_cpu_capacity_tp'/>
+      <var-decl name='__tracepoint_sched_overutilized_tp' type-id='4ca0c298' mangled-name='__tracepoint_sched_overutilized_tp' visibility='default' filepath='include/trace/events/sched.h' line='664' column='1' elf-symbol-id='__tracepoint_sched_overutilized_tp'/>
+      <var-decl name='__tracepoint_sched_switch' type-id='4ca0c298' mangled-name='__tracepoint_sched_switch' visibility='default' filepath='include/trace/events/sched.h' line='138' column='1' elf-symbol-id='__tracepoint_sched_switch'/>
+      <var-decl name='__tracepoint_sched_util_est_cfs_tp' type-id='4ca0c298' mangled-name='__tracepoint_sched_util_est_cfs_tp' visibility='default' filepath='include/trace/events/sched.h' line='668' column='1' elf-symbol-id='__tracepoint_sched_util_est_cfs_tp'/>
+      <var-decl name='__tracepoint_sched_util_est_se_tp' type-id='4ca0c298' mangled-name='__tracepoint_sched_util_est_se_tp' visibility='default' filepath='include/trace/events/sched.h' line='672' column='1' elf-symbol-id='__tracepoint_sched_util_est_se_tp'/>
+      <var-decl name='__tracepoint_suspend_resume' type-id='4ca0c298' mangled-name='__tracepoint_suspend_resume' visibility='default' filepath='include/trace/events/power.h' line='226' column='1' elf-symbol-id='__tracepoint_suspend_resume'/>
+      <var-decl name='__tracepoint_xdp_exception' type-id='4ca0c298' mangled-name='__tracepoint_xdp_exception' visibility='default' filepath='include/trace/events/xdp.h' line='28' column='1' elf-symbol-id='__tracepoint_xdp_exception'/>
+      <function-decl name='__tty_insert_flip_char' mangled-name='__tty_insert_flip_char' filepath='drivers/tty/tty_buffer.c' line='379' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__tty_insert_flip_char'>
+        <parameter type-id='ec77b5b8' name='port' filepath='drivers/tty/tty_buffer.c' line='379' column='1'/>
+        <parameter type-id='002ac4a6' name='ch' filepath='drivers/tty/tty_buffer.c' line='379' column='1'/>
+        <parameter type-id='a84c031d' name='flag' filepath='drivers/tty/tty_buffer.c' line='379' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__udelay' mangled-name='__udelay' filepath='arch/arm64/lib/delay.c' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__udelay'>
+        <parameter type-id='7359adad' name='usecs' filepath='arch/arm64/lib/delay.c' line='49' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__uio_register_device' mangled-name='__uio_register_device' filepath='drivers/uio/uio.c' line='916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__uio_register_device'>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/uio/uio.c' line='916' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/uio/uio.c' line='917' column='1'/>
+        <parameter type-id='fb1092f1' name='info' filepath='drivers/uio/uio.c' line='918' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__unregister_chrdev' mangled-name='__unregister_chrdev' filepath='fs/char_dev.c' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__unregister_chrdev'>
+        <parameter type-id='f0981eeb' name='major' filepath='fs/char_dev.c' line='335' column='1'/>
+        <parameter type-id='f0981eeb' name='baseminor' filepath='fs/char_dev.c' line='335' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='336' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/char_dev.c' line='336' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__update_load_avg_blocked_se' mangled-name='__update_load_avg_blocked_se' filepath='kernel/sched/pelt.c' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__update_load_avg_blocked_se'>
+        <parameter type-id='91ce1af9' name='now' filepath='kernel/sched/pelt.c' line='335' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='kernel/sched/pelt.c' line='335' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__usb_create_hcd' mangled-name='__usb_create_hcd' filepath='drivers/usb/core/hcd.c' line='2437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__usb_create_hcd'>
+        <parameter type-id='5aa12c86' name='driver' filepath='drivers/usb/core/hcd.c' line='2437' column='1'/>
+        <parameter type-id='fa0b179b' name='sysdev' filepath='drivers/usb/core/hcd.c' line='2438' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/core/hcd.c' line='2438' column='1'/>
+        <parameter type-id='80f4b756' name='bus_name' filepath='drivers/usb/core/hcd.c' line='2438' column='1'/>
+        <parameter type-id='fc4f83c1' name='primary_hcd' filepath='drivers/usb/core/hcd.c' line='2439' column='1'/>
+        <return type-id='fc4f83c1'/>
+      </function-decl>
+      <function-decl name='__usecs_to_jiffies' mangled-name='__usecs_to_jiffies' filepath='kernel/time/time.c' line='563' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__usecs_to_jiffies'>
+        <parameter type-id='20f5f452' name='u' filepath='kernel/time/time.c' line='563' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='__video_register_device' mangled-name='__video_register_device' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__video_register_device'>
+        <parameter type-id='798c29b7' name='vdev' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='876' column='1'/>
+        <parameter type-id='24df61b5' name='type' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='877' column='1'/>
+        <parameter type-id='95e97e5e' name='nr' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='878' column='1'/>
+        <parameter type-id='95e97e5e' name='warn_if_nr_in_use' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='878' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='879' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__wake_up' mangled-name='__wake_up' filepath='kernel/sched/wait.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__wake_up'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='140' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait.c' line='140' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_exclusive' filepath='kernel/sched/wait.c' line='141' column='1'/>
+        <parameter type-id='eaa32e2f' name='key' filepath='kernel/sched/wait.c' line='141' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__wake_up_locked' mangled-name='__wake_up_locked' filepath='kernel/sched/wait.c' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__wake_up_locked'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='150' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait.c' line='150' column='1'/>
+        <parameter type-id='95e97e5e' name='nr' filepath='kernel/sched/wait.c' line='150' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__wake_up_sync' mangled-name='__wake_up_sync' filepath='kernel/sched/wait.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__wake_up_sync'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='224' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait.c' line='224' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__warn_printk' mangled-name='__warn_printk' filepath='kernel/panic.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__warn_printk'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/panic.c' line='640' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='__xa_alloc' mangled-name='__xa_alloc' filepath='lib/xarray.c' line='1804' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__xa_alloc'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1804' column='1'/>
+        <parameter type-id='f9409001' name='id' filepath='lib/xarray.c' line='1804' column='1'/>
+        <parameter type-id='eaa32e2f' name='entry' filepath='lib/xarray.c' line='1804' column='1'/>
+        <parameter type-id='5066733a' name='limit' filepath='lib/xarray.c' line='1805' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/xarray.c' line='1805' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__xfrm_state_destroy' mangled-name='__xfrm_state_destroy' filepath='net/xfrm/xfrm_state.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__xfrm_state_destroy'>
+        <parameter type-id='328dda6e' name='x' filepath='net/xfrm/xfrm_state.c' line='640' column='1'/>
+        <parameter type-id='b50a4934' name='sync' filepath='net/xfrm/xfrm_state.c' line='640' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_copy_from_iter' mangled-name='_copy_from_iter' filepath='lib/iov_iter.c' line='767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_copy_from_iter'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='lib/iov_iter.c' line='767' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='lib/iov_iter.c' line='767' column='1'/>
+        <parameter type-id='4fa10f9e' name='i' filepath='lib/iov_iter.c' line='767' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='_copy_from_iter_full' mangled-name='_copy_from_iter_full' filepath='lib/iov_iter.c' line='787' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_copy_from_iter_full'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='lib/iov_iter.c' line='787' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='lib/iov_iter.c' line='787' column='1'/>
+        <parameter type-id='4fa10f9e' name='i' filepath='lib/iov_iter.c' line='787' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='_copy_to_iter' mangled-name='_copy_to_iter' filepath='lib/iov_iter.c' line='632' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_copy_to_iter'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='lib/iov_iter.c' line='632' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='lib/iov_iter.c' line='632' column='1'/>
+        <parameter type-id='4fa10f9e' name='i' filepath='lib/iov_iter.c' line='632' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='_dev_crit' mangled-name='_dev_crit' filepath='drivers/base/core.c' line='4511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_dev_crit'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4511' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4511' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_dev_emerg' mangled-name='_dev_emerg' filepath='drivers/base/core.c' line='4509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_dev_emerg'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4509' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4509' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_dev_err' mangled-name='_dev_err' filepath='drivers/base/core.c' line='4512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_dev_err'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4512' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4512' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_dev_info' mangled-name='_dev_info' filepath='drivers/base/core.c' line='4515' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_dev_info'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4515' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4515' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_dev_notice' mangled-name='_dev_notice' filepath='drivers/base/core.c' line='4514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_dev_notice'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4514' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4514' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_dev_warn' mangled-name='_dev_warn' filepath='drivers/base/core.c' line='4513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_dev_warn'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4513' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4513' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_lock' mangled-name='_raw_read_lock' filepath='kernel/locking/spinlock.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_lock'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='221' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_lock_bh' mangled-name='_raw_read_lock_bh' filepath='kernel/locking/spinlock.c' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_lock_bh'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='245' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_lock_irq' mangled-name='_raw_read_lock_irq' filepath='kernel/locking/spinlock.c' line='237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_lock_irq'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='237' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_lock_irqsave' mangled-name='_raw_read_lock_irqsave' filepath='kernel/locking/spinlock.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_lock_irqsave'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='229' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='_raw_read_unlock' mangled-name='_raw_read_unlock' filepath='kernel/locking/spinlock.c' line='253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_unlock'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='253' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_unlock_bh' mangled-name='_raw_read_unlock_bh' filepath='kernel/locking/spinlock.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_unlock_bh'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='277' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_unlock_irq' mangled-name='_raw_read_unlock_irq' filepath='kernel/locking/spinlock.c' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_unlock_irq'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='269' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_read_unlock_irqrestore' mangled-name='_raw_read_unlock_irqrestore' filepath='kernel/locking/spinlock.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_read_unlock_irqrestore'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='261' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/locking/spinlock.c' line='261' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_lock' mangled-name='_raw_spin_lock' filepath='kernel/locking/spinlock.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_lock'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='149' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_lock_bh' mangled-name='_raw_spin_lock_bh' filepath='kernel/locking/spinlock.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_lock_bh'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='173' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_lock_irq' mangled-name='_raw_spin_lock_irq' filepath='kernel/locking/spinlock.c' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_lock_irq'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='165' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_lock_irqsave' mangled-name='_raw_spin_lock_irqsave' filepath='kernel/locking/spinlock.c' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_lock_irqsave'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='157' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='_raw_spin_trylock' mangled-name='_raw_spin_trylock' filepath='kernel/locking/spinlock.c' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_trylock'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='133' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='_raw_spin_unlock' mangled-name='_raw_spin_unlock' filepath='kernel/locking/spinlock.c' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_unlock'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='181' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_unlock_bh' mangled-name='_raw_spin_unlock_bh' filepath='kernel/locking/spinlock.c' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_unlock_bh'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='205' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_unlock_irq' mangled-name='_raw_spin_unlock_irq' filepath='kernel/locking/spinlock.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_unlock_irq'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='197' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_spin_unlock_irqrestore' mangled-name='_raw_spin_unlock_irqrestore' filepath='kernel/locking/spinlock.c' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_spin_unlock_irqrestore'>
+        <parameter type-id='704982b4' name='lock' filepath='kernel/locking/spinlock.c' line='189' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/locking/spinlock.c' line='189' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_lock' mangled-name='_raw_write_lock' filepath='kernel/locking/spinlock.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_lock'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='293' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_lock_bh' mangled-name='_raw_write_lock_bh' filepath='kernel/locking/spinlock.c' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_lock_bh'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='317' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_lock_irq' mangled-name='_raw_write_lock_irq' filepath='kernel/locking/spinlock.c' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_lock_irq'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='309' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_lock_irqsave' mangled-name='_raw_write_lock_irqsave' filepath='kernel/locking/spinlock.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_lock_irqsave'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='301' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='_raw_write_unlock' mangled-name='_raw_write_unlock' filepath='kernel/locking/spinlock.c' line='325' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_unlock'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='325' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_unlock_bh' mangled-name='_raw_write_unlock_bh' filepath='kernel/locking/spinlock.c' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_unlock_bh'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='349' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_unlock_irq' mangled-name='_raw_write_unlock_irq' filepath='kernel/locking/spinlock.c' line='341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_unlock_irq'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='341' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_raw_write_unlock_irqrestore' mangled-name='_raw_write_unlock_irqrestore' filepath='kernel/locking/spinlock.c' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_raw_write_unlock_irqrestore'>
+        <parameter type-id='6a6de1b0' name='lock' filepath='kernel/locking/spinlock.c' line='333' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/locking/spinlock.c' line='333' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='_snd_ctl_add_follower' mangled-name='_snd_ctl_add_follower' filepath='sound/core/vmaster.c' line='252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='_snd_ctl_add_follower'>
+        <parameter type-id='7a5054b7' name='master' filepath='sound/core/vmaster.c' line='252' column='1'/>
+        <parameter type-id='7a5054b7' name='follower' filepath='sound/core/vmaster.c' line='253' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='sound/core/vmaster.c' line='254' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='_totalram_pages' type-id='f22a8abb' mangled-name='_totalram_pages' visibility='default' filepath='mm/page_alloc.c' line='174' column='1' elf-symbol-id='_totalram_pages'/>
+      <function-decl name='add_cpu' mangled-name='add_cpu' filepath='kernel/cpu.c' line='1619' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_cpu'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='kernel/cpu.c' line='1619' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='add_device_randomness' mangled-name='add_device_randomness' filepath='include/linux/random.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_device_randomness'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='add_random_ready_callback' mangled-name='add_random_ready_callback' filepath='include/linux/random.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_random_ready_callback'>
+        <parameter type-id='b47c553a'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='add_timer' mangled-name='add_timer' filepath='include/linux/timer.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_timer'>
+        <parameter type-id='9248e67f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='add_timer_on' mangled-name='add_timer_on' filepath='include/linux/timer.h' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_timer_on'>
+        <parameter type-id='9248e67f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='add_uevent_var' mangled-name='add_uevent_var' filepath='include/linux/kobject.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_uevent_var'>
+        <parameter type-id='d9d65b21'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='add_wait_queue' mangled-name='add_wait_queue' filepath='include/linux/wait.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_wait_queue'>
+        <parameter type-id='3f8b2ed3'/>
+        <parameter type-id='db9d03e3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='adjust_managed_page_count' mangled-name='adjust_managed_page_count' filepath='mm/page_alloc.c' line='7797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='adjust_managed_page_count'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='7797' column='1'/>
+        <parameter type-id='bd54fe1a' name='count' filepath='mm/page_alloc.c' line='7797' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='aead_register_instance' mangled-name='aead_register_instance' filepath='crypto/aead.c' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aead_register_instance'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/aead.c' line='286' column='1'/>
+        <parameter type-id='69bd57be' name='inst' filepath='crypto/aead.c' line='287' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='aes_encrypt' mangled-name='aes_encrypt' filepath='include/crypto/aes.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aes_encrypt'>
+        <parameter type-id='825271e7'/>
+        <parameter type-id='8bff8096'/>
+        <parameter type-id='bbaf3419'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='aes_expandkey' mangled-name='aes_expandkey' filepath='include/crypto/aes.h' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aes_expandkey'>
+        <parameter type-id='21370cb4'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ahash_register_instance' mangled-name='ahash_register_instance' filepath='crypto/ahash.c' line='632' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ahash_register_instance'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/ahash.c' line='632' column='1'/>
+        <parameter type-id='4e602d14' name='inst' filepath='crypto/ahash.c' line='633' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='alarm_cancel' mangled-name='alarm_cancel' filepath='kernel/time/alarmtimer.c' line='429' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alarm_cancel'>
+        <parameter type-id='be65fdd0' name='alarm' filepath='kernel/time/alarmtimer.c' line='429' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='alarm_init' mangled-name='alarm_init' filepath='kernel/time/alarmtimer.c' line='342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alarm_init'>
+        <parameter type-id='be65fdd0' name='alarm' filepath='kernel/time/alarmtimer.c' line='342' column='1'/>
+        <parameter type-id='6b8d4b77' name='type' filepath='kernel/time/alarmtimer.c' line='342' column='1'/>
+        <parameter type-id='7432d5be' name='function' filepath='kernel/time/alarmtimer.c' line='343' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='alarm_start_relative' mangled-name='alarm_start_relative' filepath='kernel/time/alarmtimer.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alarm_start_relative'>
+        <parameter type-id='be65fdd0' name='alarm' filepath='kernel/time/alarmtimer.c' line='376' column='1'/>
+        <parameter type-id='fbc017ef' name='start' filepath='kernel/time/alarmtimer.c' line='376' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='alarm_try_to_cancel' mangled-name='alarm_try_to_cancel' filepath='kernel/time/alarmtimer.c' line='405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alarm_try_to_cancel'>
+        <parameter type-id='be65fdd0' name='alarm' filepath='kernel/time/alarmtimer.c' line='405' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='alarmtimer_get_rtcdev' mangled-name='alarmtimer_get_rtcdev' filepath='kernel/time/alarmtimer.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alarmtimer_get_rtcdev'>
+        <return type-id='5992ae83'/>
+      </function-decl>
+      <function-decl name='alloc_anon_inode' mangled-name='alloc_anon_inode' filepath='fs/libfs.c' line='1217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_anon_inode'>
+        <parameter type-id='42c8f564' name='s' filepath='fs/libfs.c' line='1217' column='1'/>
+        <return type-id='7e666abe'/>
+      </function-decl>
+      <function-decl name='alloc_can_err_skb' mangled-name='alloc_can_err_skb' filepath='drivers/net/can/dev/dev.c' line='731' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_can_err_skb'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='731' column='1'/>
+        <parameter type-id='fb0c6b9f' name='cf' filepath='drivers/net/can/dev/dev.c' line='731' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='alloc_can_skb' mangled-name='alloc_can_skb' filepath='drivers/net/can/dev/dev.c' line='676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_can_skb'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='676' column='1'/>
+        <parameter type-id='fb0c6b9f' name='cf' filepath='drivers/net/can/dev/dev.c' line='676' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='alloc_candev_mqs' mangled-name='alloc_candev_mqs' filepath='drivers/net/can/dev/dev.c' line='747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_candev_mqs'>
+        <parameter type-id='95e97e5e' name='sizeof_priv' filepath='drivers/net/can/dev/dev.c' line='747' column='1'/>
+        <parameter type-id='f0981eeb' name='echo_skb_max' filepath='drivers/net/can/dev/dev.c' line='747' column='1'/>
+        <parameter type-id='f0981eeb' name='txqs' filepath='drivers/net/can/dev/dev.c' line='748' column='1'/>
+        <parameter type-id='f0981eeb' name='rxqs' filepath='drivers/net/can/dev/dev.c' line='748' column='1'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
+      <function-decl name='alloc_chrdev_region' mangled-name='alloc_chrdev_region' filepath='fs/char_dev.c' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_chrdev_region'>
+        <parameter type-id='33f86a47' name='dev' filepath='fs/char_dev.c' line='236' column='1'/>
+        <parameter type-id='f0981eeb' name='baseminor' filepath='fs/char_dev.c' line='236' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='236' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/char_dev.c' line='237' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='alloc_etherdev_mqs' mangled-name='alloc_etherdev_mqs' filepath='net/ethernet/eth.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_etherdev_mqs'>
+        <parameter type-id='95e97e5e' name='sizeof_priv' filepath='net/ethernet/eth.c' line='395' column='1'/>
+        <parameter type-id='f0981eeb' name='txqs' filepath='net/ethernet/eth.c' line='395' column='1'/>
+        <parameter type-id='f0981eeb' name='rxqs' filepath='net/ethernet/eth.c' line='396' column='1'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
+      <function-decl name='alloc_io_pgtable_ops' mangled-name='alloc_io_pgtable_ops' filepath='drivers/iommu/io-pgtable.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_io_pgtable_ops'>
+        <parameter type-id='28637b68' name='fmt' filepath='drivers/iommu/io-pgtable.c' line='29' column='1'/>
+        <parameter type-id='a6481aea' name='cfg' filepath='drivers/iommu/io-pgtable.c' line='30' column='1'/>
+        <parameter type-id='eaa32e2f' name='cookie' filepath='drivers/iommu/io-pgtable.c' line='31' column='1'/>
+        <return type-id='bf4bdb64'/>
+      </function-decl>
+      <function-decl name='alloc_netdev_mqs' mangled-name='alloc_netdev_mqs' filepath='include/linux/netdevice.h' line='4465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_netdev_mqs'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='002ac4a6'/>
+        <parameter type-id='548eee3a'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
+      <function-decl name='alloc_pages_exact' mangled-name='alloc_pages_exact' filepath='include/linux/gfp.h' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_pages_exact'>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='alloc_skb_with_frags' mangled-name='alloc_skb_with_frags' filepath='include/linux/skbuff.h' line='1104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_skb_with_frags'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='7292109c'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='alloc_workqueue' mangled-name='alloc_workqueue' filepath='include/linux/workqueue.h' line='413' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_workqueue'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='242e3d19'/>
+      </function-decl>
+      <var-decl name='amba_bustype' type-id='b31bfc8a' mangled-name='amba_bustype' visibility='default' filepath='drivers/amba/bus.c' line='215' column='1' elf-symbol-id='amba_bustype'/>
+      <function-decl name='amba_driver_register' mangled-name='amba_driver_register' filepath='include/linux/amba/bus.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_driver_register'>
+        <parameter type-id='6e829429'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='amba_driver_unregister' mangled-name='amba_driver_unregister' filepath='drivers/amba/bus.c' line='356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_driver_unregister'>
+        <parameter type-id='6e829429' name='drv' filepath='drivers/amba/bus.c' line='356' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='amba_release_regions' mangled-name='amba_release_regions' filepath='drivers/amba/bus.c' line='816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_release_regions'>
+        <parameter type-id='ddd322c1' name='dev' filepath='drivers/amba/bus.c' line='816' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='amba_request_regions' mangled-name='amba_request_regions' filepath='drivers/amba/bus.c' line='794' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_request_regions'>
+        <parameter type-id='ddd322c1' name='dev' filepath='drivers/amba/bus.c' line='794' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/amba/bus.c' line='794' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='android_debug_symbol' mangled-name='android_debug_symbol' filepath='drivers/android/debug_symbols.c' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='android_debug_symbol'>
+        <parameter type-id='9a7fd0a4' name='symbol' filepath='drivers/android/debug_symbols.c' line='94' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='android_rvh_probe_register' mangled-name='android_rvh_probe_register' filepath='kernel/tracepoint.c' line='862' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='android_rvh_probe_register'>
+        <parameter type-id='08e531de' name='tp' filepath='kernel/tracepoint.c' line='862' column='1'/>
+        <parameter type-id='eaa32e2f' name='probe' filepath='kernel/tracepoint.c' line='862' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/tracepoint.c' line='862' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='anon_inode_getfd' mangled-name='anon_inode_getfd' filepath='fs/anon_inodes.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='anon_inode_getfd'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/anon_inodes.c' line='197' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='fs/anon_inodes.c' line='197' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='fs/anon_inodes.c' line='198' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='fs/anon_inodes.c' line='198' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='anon_inode_getfile' mangled-name='anon_inode_getfile' filepath='include/linux/anon_inodes.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='anon_inode_getfile'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='61758ee5'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='77e79a4b'/>
+      </function-decl>
+      <var-decl name='arch_timer_read_counter' type-id='0e70db3e' mangled-name='arch_timer_read_counter' visibility='default' filepath='drivers/clocksource/arm_arch_timer.c' line='182' column='1' elf-symbol-id='arch_timer_read_counter'/>
+      <function-decl name='argv_free' mangled-name='argv_free' filepath='include/linux/string.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_free'>
+        <parameter type-id='9b23c9ad'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='argv_split' mangled-name='argv_split' filepath='include/linux/string.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_split'>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='9b23c9ad'/>
+      </function-decl>
+      <var-decl name='arm64_const_caps_ready' type-id='237c0d27' mangled-name='arm64_const_caps_ready' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='137' column='1' elf-symbol-id='arm64_const_caps_ready'/>
+      <var-decl name='arm64_use_ng_mappings' type-id='b50a4934' mangled-name='arm64_use_ng_mappings' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='107' column='1' elf-symbol-id='arm64_use_ng_mappings'/>
+      <function-decl name='async_schedule_node' mangled-name='async_schedule_node' filepath='kernel/async.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='async_schedule_node'>
+        <parameter type-id='5c19cb0c' name='func' filepath='kernel/async.c' line='228' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/async.c' line='228' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='kernel/async.c' line='228' column='1'/>
+        <return type-id='a7465fe4'/>
+      </function-decl>
+      <function-decl name='async_schedule_node_domain' mangled-name='async_schedule_node_domain' filepath='kernel/async.c' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='async_schedule_node_domain'>
+        <parameter type-id='5c19cb0c' name='func' filepath='kernel/async.c' line='165' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/async.c' line='165' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='kernel/async.c' line='166' column='1'/>
+        <parameter type-id='fc616182' name='domain' filepath='kernel/async.c' line='166' column='1'/>
+        <return type-id='a7465fe4'/>
+      </function-decl>
+      <function-decl name='async_synchronize_full_domain' mangled-name='async_synchronize_full_domain' filepath='kernel/async.c' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='async_synchronize_full_domain'>
+        <parameter type-id='fc616182' name='domain' filepath='kernel/async.c' line='270' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='atomic_notifier_call_chain' mangled-name='atomic_notifier_call_chain' filepath='include/linux/notifier.h' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_call_chain'>
+        <parameter type-id='02162584'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='atomic_notifier_chain_register' mangled-name='atomic_notifier_chain_register' filepath='include/linux/notifier.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_chain_register'>
+        <parameter type-id='02162584'/>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='atomic_notifier_chain_unregister' mangled-name='atomic_notifier_chain_unregister' filepath='kernel/notifier.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_chain_unregister'>
+        <parameter type-id='02162584' name='nh' filepath='kernel/notifier.c' line='161' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='162' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='autoremove_wake_function' mangled-name='autoremove_wake_function' filepath='include/linux/wait.h' line='1160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='autoremove_wake_function'>
+        <parameter type-id='db9d03e3'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='available_idle_cpu' mangled-name='available_idle_cpu' filepath='kernel/sched/core.c' line='5383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='available_idle_cpu'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/core.c' line='5383' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='backlight_device_set_brightness' mangled-name='backlight_device_set_brightness' filepath='drivers/video/backlight/backlight.c' line='230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='backlight_device_set_brightness'>
+        <parameter type-id='7a76d041' name='bd' filepath='drivers/video/backlight/backlight.c' line='230' column='1'/>
+        <parameter type-id='7359adad' name='brightness' filepath='drivers/video/backlight/backlight.c' line='231' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='badblocks_check' mangled-name='badblocks_check' filepath='block/badblocks.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_check'>
+        <parameter type-id='5760652c' name='bb' filepath='block/badblocks.c' line='53' column='1'/>
+        <parameter type-id='a42536cd' name='s' filepath='block/badblocks.c' line='53' column='1'/>
+        <parameter type-id='95e97e5e' name='sectors' filepath='block/badblocks.c' line='53' column='1'/>
+        <parameter type-id='5c39fc92' name='first_bad' filepath='block/badblocks.c' line='54' column='1'/>
+        <parameter type-id='7292109c' name='bad_sectors' filepath='block/badblocks.c' line='54' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='badblocks_clear' mangled-name='badblocks_clear' filepath='block/badblocks.c' line='331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_clear'>
+        <parameter type-id='5760652c' name='bb' filepath='block/badblocks.c' line='331' column='1'/>
+        <parameter type-id='a42536cd' name='s' filepath='block/badblocks.c' line='331' column='1'/>
+        <parameter type-id='95e97e5e' name='sectors' filepath='block/badblocks.c' line='331' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='badblocks_exit' mangled-name='badblocks_exit' filepath='block/badblocks.c' line='593' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_exit'>
+        <parameter type-id='5760652c' name='bb' filepath='block/badblocks.c' line='593' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='badblocks_init' mangled-name='badblocks_init' filepath='block/badblocks.c' line='575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_init'>
+        <parameter type-id='5760652c' name='bb' filepath='block/badblocks.c' line='575' column='1'/>
+        <parameter type-id='95e97e5e' name='enable' filepath='block/badblocks.c' line='575' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='badblocks_set' mangled-name='badblocks_set' filepath='block/badblocks.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_set'>
+        <parameter type-id='5760652c' name='bb' filepath='block/badblocks.c' line='163' column='1'/>
+        <parameter type-id='a42536cd' name='s' filepath='block/badblocks.c' line='163' column='1'/>
+        <parameter type-id='95e97e5e' name='sectors' filepath='block/badblocks.c' line='163' column='1'/>
+        <parameter type-id='95e97e5e' name='acknowledged' filepath='block/badblocks.c' line='164' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='badblocks_show' mangled-name='badblocks_show' filepath='include/linux/badblocks.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_show'>
+        <parameter type-id='5760652c'/>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='bcmp' mangled-name='bcmp' filepath='lib/string.c' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bcmp'>
+        <parameter type-id='eaa32e2f' name='a' filepath='lib/string.c' line='962' column='1'/>
+        <parameter type-id='eaa32e2f' name='b' filepath='lib/string.c' line='962' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='lib/string.c' line='962' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bd_set_nr_sectors' mangled-name='bd_set_nr_sectors' filepath='fs/block_dev.c' line='1389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bd_set_nr_sectors'>
+        <parameter type-id='b88dd945' name='bdev' filepath='fs/block_dev.c' line='1389' column='1'/>
+        <parameter type-id='a42536cd' name='sectors' filepath='fs/block_dev.c' line='1389' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bdget_disk' mangled-name='bdget_disk' filepath='include/linux/genhd.h' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bdget_disk'>
+        <parameter type-id='33c599da'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='b88dd945'/>
+      </function-decl>
+      <function-decl name='bdput' mangled-name='bdput' filepath='fs/block_dev.c' line='968' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bdput'>
+        <parameter type-id='b88dd945' name='bdev' filepath='fs/block_dev.c' line='968' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bgpio_init' mangled-name='bgpio_init' filepath='drivers/gpio/gpio-mmio.c' line='599' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bgpio_init'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpio-mmio.c' line='599' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpio-mmio.c' line='599' column='1'/>
+        <parameter type-id='7359adad' name='sz' filepath='drivers/gpio/gpio-mmio.c' line='600' column='1'/>
+        <parameter type-id='eaa32e2f' name='dat' filepath='drivers/gpio/gpio-mmio.c' line='600' column='1'/>
+        <parameter type-id='eaa32e2f' name='set' filepath='drivers/gpio/gpio-mmio.c' line='600' column='1'/>
+        <parameter type-id='eaa32e2f' name='clr' filepath='drivers/gpio/gpio-mmio.c' line='601' column='1'/>
+        <parameter type-id='eaa32e2f' name='dirout' filepath='drivers/gpio/gpio-mmio.c' line='601' column='1'/>
+        <parameter type-id='eaa32e2f' name='dirin' filepath='drivers/gpio/gpio-mmio.c' line='601' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/gpio/gpio-mmio.c' line='602' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bin2hex' mangled-name='bin2hex' filepath='include/linux/kernel.h' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bin2hex'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='bio_add_page' mangled-name='bio_add_page' filepath='include/linux/bio.h' line='448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_add_page'>
+        <parameter type-id='fb55efa1'/>
+        <parameter type-id='02f11ed4'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bio_alloc_bioset' mangled-name='bio_alloc_bioset' filepath='include/linux/bio.h' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_alloc_bioset'>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='38b1e3a0'/>
+        <return type-id='fb55efa1'/>
+      </function-decl>
+      <function-decl name='bio_associate_blkg' mangled-name='bio_associate_blkg' filepath='include/linux/bio.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_associate_blkg'>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bio_chain' mangled-name='bio_chain' filepath='include/linux/bio.h' line='446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_chain'>
+        <parameter type-id='fb55efa1'/>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bio_clone_blkg_association' mangled-name='bio_clone_blkg_association' filepath='include/linux/bio.h' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_clone_blkg_association'>
+        <parameter type-id='fb55efa1'/>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bio_crypt_set_ctx' mangled-name='bio_crypt_set_ctx' filepath='include/linux/blk-crypto.h' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_crypt_set_ctx'>
+        <parameter type-id='fb55efa1'/>
+        <parameter type-id='9baaf905'/>
+        <parameter type-id='c8fec899'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bio_endio' mangled-name='bio_endio' filepath='include/linux/bio.h' line='422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_endio'>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bio_init' mangled-name='bio_init' filepath='include/linux/bio.h' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_init'>
+        <parameter type-id='fb55efa1'/>
+        <parameter type-id='cddcb53e'/>
+        <parameter type-id='8efea9e5'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bio_put' mangled-name='bio_put' filepath='include/linux/bio.h' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_put'>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bit_wait_timeout' mangled-name='bit_wait_timeout' filepath='kernel/sched/wait_bit.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bit_wait_timeout'>
+        <parameter type-id='307d4a12' name='word' filepath='kernel/sched/wait_bit.c' line='217' column='1'/>
+        <parameter type-id='95e97e5e' name='mode' filepath='kernel/sched/wait_bit.c' line='217' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bitmap_find_next_zero_area_off' mangled-name='bitmap_find_next_zero_area_off' filepath='include/linux/bitmap.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_find_next_zero_area_off'>
+        <parameter type-id='1d2c2b85'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='bitmap_from_arr32' mangled-name='bitmap_from_arr32' filepath='include/linux/bitmap.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_from_arr32'>
+        <parameter type-id='1d2c2b85'/>
+        <parameter type-id='aded214c'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bitmap_parse' mangled-name='bitmap_parse' filepath='include/linux/bitmap.h' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_parse'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='1d2c2b85'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bitmap_parselist' mangled-name='bitmap_parselist' filepath='include/linux/bitmap.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_parselist'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='1d2c2b85'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bitmap_print_to_pagebuf' mangled-name='bitmap_print_to_pagebuf' filepath='lib/bitmap.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_print_to_pagebuf'>
+        <parameter type-id='b50a4934' name='list' filepath='lib/bitmap.c' line='478' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='lib/bitmap.c' line='478' column='1'/>
+        <parameter type-id='f9b37274' name='maskp' filepath='lib/bitmap.c' line='478' column='1'/>
+        <parameter type-id='95e97e5e' name='nmaskbits' filepath='lib/bitmap.c' line='479' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bitmap_to_arr32' mangled-name='bitmap_to_arr32' filepath='lib/bitmap.c' line='1295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_to_arr32'>
+        <parameter type-id='f9409001' name='buf' filepath='lib/bitmap.c' line='1295' column='1'/>
+        <parameter type-id='f9b37274' name='bitmap' filepath='lib/bitmap.c' line='1295' column='1'/>
+        <parameter type-id='f0981eeb' name='nbits' filepath='lib/bitmap.c' line='1295' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_abort_request' mangled-name='blk_abort_request' filepath='block/blk-timeout.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_abort_request'>
+        <parameter type-id='3dad1a48' name='req' filepath='block/blk-timeout.c' line='79' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_alloc_queue' mangled-name='blk_alloc_queue' filepath='block/blk-core.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_alloc_queue'>
+        <parameter type-id='95e97e5e' name='node_id' filepath='block/blk-core.c' line='517' column='1'/>
+        <return type-id='e7d2a5fc'/>
+      </function-decl>
+      <function-decl name='blk_check_plugged' mangled-name='blk_check_plugged' filepath='block/blk-core.c' line='1728' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_check_plugged'>
+        <parameter type-id='f31816b5' name='unplug' filepath='block/blk-core.c' line='1728' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='block/blk-core.c' line='1728' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='block/blk-core.c' line='1729' column='1'/>
+        <return type-id='39914f13'/>
+      </function-decl>
+      <function-decl name='blk_cleanup_queue' mangled-name='blk_cleanup_queue' filepath='block/blk-core.c' line='370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_cleanup_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='370' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_crypto_init_key' mangled-name='blk_crypto_init_key' filepath='include/linux/blk-crypto.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_crypto_init_key'>
+        <parameter type-id='59b4be32'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='e951e732'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_execute_rq' mangled-name='blk_execute_rq' filepath='block/blk-exec.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_execute_rq'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-exec.c' line='79' column='1'/>
+        <parameter type-id='33c599da' name='bd_disk' filepath='block/blk-exec.c' line='79' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-exec.c' line='80' column='1'/>
+        <parameter type-id='95e97e5e' name='at_head' filepath='block/blk-exec.c' line='80' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_execute_rq_nowait' mangled-name='blk_execute_rq_nowait' filepath='block/blk-exec.c' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_execute_rq_nowait'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-exec.c' line='48' column='1'/>
+        <parameter type-id='33c599da' name='bd_disk' filepath='block/blk-exec.c' line='48' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-exec.c' line='49' column='1'/>
+        <parameter type-id='95e97e5e' name='at_head' filepath='block/blk-exec.c' line='49' column='1'/>
+        <parameter type-id='5afdaa66' name='done' filepath='block/blk-exec.c' line='50' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_freeze_queue_start' mangled-name='blk_freeze_queue_start' filepath='include/linux/blk-mq.h' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_freeze_queue_start'>
+        <parameter type-id='e7d2a5fc'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_get_queue' mangled-name='blk_get_queue' filepath='include/linux/blkdev.h' line='1246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_get_queue'>
+        <parameter type-id='e7d2a5fc'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='blk_get_request' mangled-name='blk_get_request' filepath='block/blk-core.c' line='627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_get_request'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='627' column='1'/>
+        <parameter type-id='f0981eeb' name='op' filepath='block/blk-core.c' line='627' column='1'/>
+        <parameter type-id='346d62be' name='flags' filepath='block/blk-core.c' line='628' column='1'/>
+        <return type-id='3dad1a48'/>
+      </function-decl>
+      <function-decl name='blk_ksm_init_passthrough' mangled-name='blk_ksm_init_passthrough' filepath='block/keyslot-manager.c' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_ksm_init_passthrough'>
+        <parameter type-id='bf8a20d2' name='ksm' filepath='block/keyslot-manager.c' line='625' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_alloc_request' mangled-name='blk_mq_alloc_request' filepath='include/linux/blk-mq.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_request'>
+        <parameter type-id='e7d2a5fc'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='346d62be'/>
+        <return type-id='3dad1a48'/>
+      </function-decl>
+      <function-decl name='blk_mq_alloc_request_hctx' mangled-name='blk_mq_alloc_request_hctx' filepath='block/blk-mq.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_request_hctx'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='431' column='1'/>
+        <parameter type-id='f0981eeb' name='op' filepath='block/blk-mq.c' line='432' column='1'/>
+        <parameter type-id='346d62be' name='flags' filepath='block/blk-mq.c' line='432' column='1'/>
+        <parameter type-id='f0981eeb' name='hctx_idx' filepath='block/blk-mq.c' line='432' column='1'/>
+        <return type-id='3dad1a48'/>
+      </function-decl>
+      <function-decl name='blk_mq_alloc_tag_set' mangled-name='blk_mq_alloc_tag_set' filepath='block/blk-mq.c' line='3500' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_tag_set'>
+        <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='3500' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_mq_complete_request' mangled-name='blk_mq_complete_request' filepath='block/blk-mq.c' line='687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_complete_request'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='687' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_complete_request_remote' mangled-name='blk_mq_complete_request_remote' filepath='block/blk-mq.c' line='654' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_complete_request_remote'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='654' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='blk_mq_delay_kick_requeue_list' mangled-name='blk_mq_delay_kick_requeue_list' filepath='block/blk-mq.c' line='841' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_delay_kick_requeue_list'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='841' column='1'/>
+        <parameter type-id='7359adad' name='msecs' filepath='block/blk-mq.c' line='842' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_end_request' mangled-name='blk_mq_end_request' filepath='include/linux/blk-mq.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_end_request'>
+        <parameter type-id='3dad1a48'/>
+        <parameter type-id='f4e2facd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_free_request' mangled-name='blk_mq_free_request' filepath='include/linux/blk-mq.h' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_free_request'>
+        <parameter type-id='3dad1a48'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_free_tag_set' mangled-name='blk_mq_free_tag_set' filepath='block/blk-mq.c' line='3596' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_free_tag_set'>
+        <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='3596' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_freeze_queue' mangled-name='blk_mq_freeze_queue' filepath='block/blk-mq.c' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_freeze_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='182' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_freeze_queue_wait' mangled-name='blk_mq_freeze_queue_wait' filepath='block/blk-mq.c' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_freeze_queue_wait'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='150' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_freeze_queue_wait_timeout' mangled-name='blk_mq_freeze_queue_wait_timeout' filepath='block/blk-mq.c' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_freeze_queue_wait_timeout'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='156' column='1'/>
+        <parameter type-id='7359adad' name='timeout' filepath='block/blk-mq.c' line='157' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_mq_init_queue' mangled-name='blk_mq_init_queue' filepath='block/blk-mq.c' line='3147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_init_queue'>
+        <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='3147' column='1'/>
+        <return type-id='e7d2a5fc'/>
+      </function-decl>
+      <function-decl name='blk_mq_init_queue_data' mangled-name='blk_mq_init_queue_data' filepath='block/blk-mq.c' line='3125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_init_queue_data'>
+        <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='3125' column='1'/>
+        <parameter type-id='eaa32e2f' name='queuedata' filepath='block/blk-mq.c' line='3126' column='1'/>
+        <return type-id='e7d2a5fc'/>
+      </function-decl>
+      <function-decl name='blk_mq_map_queues' mangled-name='blk_mq_map_queues' filepath='include/linux/blk-mq.h' line='530' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_map_queues'>
+        <parameter type-id='187ae308'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_mq_pci_map_queues' mangled-name='blk_mq_pci_map_queues' filepath='block/blk-mq-pci.c' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_pci_map_queues'>
+        <parameter type-id='187ae308' name='qmap' filepath='block/blk-mq-pci.c' line='26' column='1'/>
+        <parameter type-id='85196e3f' name='pdev' filepath='block/blk-mq-pci.c' line='26' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='block/blk-mq-pci.c' line='27' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_mq_quiesce_queue' mangled-name='blk_mq_quiesce_queue' filepath='include/linux/blk-mq.h' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_quiesce_queue'>
+        <parameter type-id='e7d2a5fc'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_requeue_request' mangled-name='blk_mq_requeue_request' filepath='block/blk-mq.c' line='762' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_requeue_request'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='762' column='1'/>
+        <parameter type-id='b50a4934' name='kick_requeue_list' filepath='block/blk-mq.c' line='762' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_run_hw_queues' mangled-name='blk_mq_run_hw_queues' filepath='block/blk-mq.c' line='1684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_run_hw_queues'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='1684' column='1'/>
+        <parameter type-id='b50a4934' name='async' filepath='block/blk-mq.c' line='1684' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_start_request' mangled-name='blk_mq_start_request' filepath='block/blk-mq.c' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_start_request'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='722' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_start_stopped_hw_queues' mangled-name='blk_mq_start_stopped_hw_queues' filepath='block/blk-mq.c' line='1819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_start_stopped_hw_queues'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='1819' column='1'/>
+        <parameter type-id='b50a4934' name='async' filepath='block/blk-mq.c' line='1819' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_stop_hw_queue' mangled-name='blk_mq_stop_hw_queue' filepath='block/blk-mq.c' line='1764' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_stop_hw_queue'>
+        <parameter type-id='a47d3467' name='hctx' filepath='block/blk-mq.c' line='1764' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_stop_hw_queues' mangled-name='blk_mq_stop_hw_queues' filepath='block/blk-mq.c' line='1781' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_stop_hw_queues'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='1781' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_tag_to_rq' mangled-name='blk_mq_tag_to_rq' filepath='block/blk-mq.c' line='849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_tag_to_rq'>
+        <parameter type-id='0461ecf5' name='tags' filepath='block/blk-mq.c' line='849' column='1'/>
+        <parameter type-id='f0981eeb' name='tag' filepath='block/blk-mq.c' line='849' column='1'/>
+        <return type-id='3dad1a48'/>
+      </function-decl>
+      <function-decl name='blk_mq_tagset_busy_iter' mangled-name='blk_mq_tagset_busy_iter' filepath='block/blk-mq-tag.c' line='378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_tagset_busy_iter'>
+        <parameter type-id='cc26d15f' name='tagset' filepath='block/blk-mq-tag.c' line='378' column='1'/>
+        <parameter type-id='65a8a3df' name='fn' filepath='block/blk-mq-tag.c' line='379' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='block/blk-mq-tag.c' line='379' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_tagset_wait_completed_request' mangled-name='blk_mq_tagset_wait_completed_request' filepath='block/blk-mq-tag.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_tagset_wait_completed_request'>
+        <parameter type-id='cc26d15f' name='tagset' filepath='block/blk-mq-tag.c' line='408' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_unfreeze_queue' mangled-name='blk_mq_unfreeze_queue' filepath='include/linux/blk-mq.h' line='524' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_unfreeze_queue'>
+        <parameter type-id='e7d2a5fc'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_unique_tag' mangled-name='blk_mq_unique_tag' filepath='block/blk-mq-tag.c' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_unique_tag'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq-tag.c' line='638' column='1'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='blk_mq_unquiesce_queue' mangled-name='blk_mq_unquiesce_queue' filepath='block/blk-mq.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_unquiesce_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='250' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_update_nr_hw_queues' mangled-name='blk_mq_update_nr_hw_queues' filepath='block/blk-mq.c' line='3799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_update_nr_hw_queues'>
+        <parameter type-id='cc26d15f' name='set' filepath='block/blk-mq.c' line='3799' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_hw_queues' filepath='block/blk-mq.c' line='3799' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_mq_virtio_map_queues' mangled-name='blk_mq_virtio_map_queues' filepath='block/blk-mq-virtio.c' line='24' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_virtio_map_queues'>
+        <parameter type-id='187ae308' name='qmap' filepath='block/blk-mq-virtio.c' line='24' column='1'/>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='block/blk-mq-virtio.c' line='25' column='1'/>
+        <parameter type-id='95e97e5e' name='first_vec' filepath='block/blk-mq-virtio.c' line='25' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_poll' mangled-name='blk_poll' filepath='include/linux/blkdev.h' line='982' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_poll'>
+        <parameter type-id='e7d2a5fc'/>
+        <parameter type-id='041bc907'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_put_queue' mangled-name='blk_put_queue' filepath='block/blk-core.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_put_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='336' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_put_request' mangled-name='blk_put_request' filepath='block/blk-core.c' line='643' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_put_request'>
+        <parameter type-id='3dad1a48' name='req' filepath='block/blk-core.c' line='643' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_alignment_offset' mangled-name='blk_queue_alignment_offset' filepath='block/blk-settings.c' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_alignment_offset'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='367' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='block/blk-settings.c' line='367' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_bounce_limit' mangled-name='blk_queue_bounce_limit' filepath='block/blk-settings.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_bounce_limit'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='102' column='1'/>
+        <parameter type-id='91ce1af9' name='max_addr' filepath='block/blk-settings.c' line='102' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_can_use_dma_map_merging' mangled-name='blk_queue_can_use_dma_map_merging' filepath='block/blk-settings.c' line='820' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_can_use_dma_map_merging'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='820' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='block/blk-settings.c' line='821' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='blk_queue_chunk_sectors' mangled-name='blk_queue_chunk_sectors' filepath='block/blk-settings.c' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_chunk_sectors'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='180' column='1'/>
+        <parameter type-id='f0981eeb' name='chunk_sectors' filepath='block/blk-settings.c' line='180' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_dma_alignment' mangled-name='blk_queue_dma_alignment' filepath='block/blk-settings.c' line='732' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_dma_alignment'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='732' column='1'/>
+        <parameter type-id='95e97e5e' name='mask' filepath='block/blk-settings.c' line='732' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_flag_clear' mangled-name='blk_queue_flag_clear' filepath='include/linux/blkdev.h' line='650' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_flag_clear'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='e7d2a5fc'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_flag_set' mangled-name='blk_queue_flag_set' filepath='block/blk-core.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_flag_set'>
+        <parameter type-id='f0981eeb' name='flag' filepath='block/blk-core.c' line='80' column='1'/>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='80' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_flag_test_and_set' mangled-name='blk_queue_flag_test_and_set' filepath='block/blk-core.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_flag_test_and_set'>
+        <parameter type-id='f0981eeb' name='flag' filepath='block/blk-core.c' line='105' column='1'/>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='105' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='blk_queue_io_min' mangled-name='blk_queue_io_min' filepath='block/blk-settings.c' line='425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_io_min'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='425' column='1'/>
+        <parameter type-id='f0981eeb' name='min' filepath='block/blk-settings.c' line='425' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_io_opt' mangled-name='blk_queue_io_opt' filepath='block/blk-settings.c' line='463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_io_opt'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='463' column='1'/>
+        <parameter type-id='f0981eeb' name='opt' filepath='block/blk-settings.c' line='463' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_logical_block_size' mangled-name='blk_queue_logical_block_size' filepath='block/blk-settings.c' line='322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_logical_block_size'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='322' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='block/blk-settings.c' line='322' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_max_discard_sectors' mangled-name='blk_queue_max_discard_sectors' filepath='block/blk-settings.c' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_discard_sectors'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='191' column='1'/>
+        <parameter type-id='f0981eeb' name='max_discard_sectors' filepath='block/blk-settings.c' line='192' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_max_discard_segments' mangled-name='blk_queue_max_discard_segments' filepath='block/blk-settings.c' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_discard_segments'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='281' column='1'/>
+        <parameter type-id='8efea9e5' name='max_segments' filepath='block/blk-settings.c' line='282' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_max_hw_sectors' mangled-name='blk_queue_max_hw_sectors' filepath='block/blk-settings.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_hw_sectors'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='149' column='1'/>
+        <parameter type-id='f0981eeb' name='max_hw_sectors' filepath='block/blk-settings.c' line='149' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_max_segment_size' mangled-name='blk_queue_max_segment_size' filepath='block/blk-settings.c' line='297' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_segment_size'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='297' column='1'/>
+        <parameter type-id='f0981eeb' name='max_size' filepath='block/blk-settings.c' line='297' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_max_segments' mangled-name='blk_queue_max_segments' filepath='block/blk-settings.c' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_segments'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='260' column='1'/>
+        <parameter type-id='8efea9e5' name='max_segments' filepath='block/blk-settings.c' line='260' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_max_write_zeroes_sectors' mangled-name='blk_queue_max_write_zeroes_sectors' filepath='block/blk-settings.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_max_write_zeroes_sectors'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='217' column='1'/>
+        <parameter type-id='f0981eeb' name='max_write_zeroes_sectors' filepath='block/blk-settings.c' line='218' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_physical_block_size' mangled-name='blk_queue_physical_block_size' filepath='block/blk-settings.c' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_physical_block_size'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='344' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='block/blk-settings.c' line='344' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_rq_timeout' mangled-name='blk_queue_rq_timeout' filepath='block/blk-settings.c' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_rq_timeout'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='25' column='1'/>
+        <parameter type-id='f0981eeb' name='timeout' filepath='block/blk-settings.c' line='25' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_virt_boundary' mangled-name='blk_queue_virt_boundary' filepath='block/blk-settings.c' line='707' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_virt_boundary'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='707' column='1'/>
+        <parameter type-id='7359adad' name='mask' filepath='block/blk-settings.c' line='707' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_queue_write_cache' mangled-name='blk_queue_write_cache' filepath='block/blk-settings.c' line='782' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_write_cache'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-settings.c' line='782' column='1'/>
+        <parameter type-id='b50a4934' name='wc' filepath='block/blk-settings.c' line='782' column='1'/>
+        <parameter type-id='b50a4934' name='fua' filepath='block/blk-settings.c' line='782' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_rq_map_kern' mangled-name='blk_rq_map_kern' filepath='block/blk-map.c' line='682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_rq_map_kern'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-map.c' line='682' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-map.c' line='682' column='1'/>
+        <parameter type-id='eaa32e2f' name='kbuf' filepath='block/blk-map.c' line='682' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='block/blk-map.c' line='683' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='block/blk-map.c' line='683' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_rq_map_user' mangled-name='blk_rq_map_user' filepath='block/blk-map.c' line='618' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_rq_map_user'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-map.c' line='618' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-map.c' line='618' column='1'/>
+        <parameter type-id='9c9d090c' name='map_data' filepath='block/blk-map.c' line='619' column='1'/>
+        <parameter type-id='eaa32e2f' name='ubuf' filepath='block/blk-map.c' line='619' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='block/blk-map.c' line='620' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='block/blk-map.c' line='620' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_rq_map_user_iov' mangled-name='blk_rq_map_user_iov' filepath='block/blk-map.c' line='576' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_rq_map_user_iov'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-map.c' line='576' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-map.c' line='576' column='1'/>
+        <parameter type-id='9c9d090c' name='map_data' filepath='block/blk-map.c' line='577' column='1'/>
+        <parameter type-id='ab3e2665' name='iter' filepath='block/blk-map.c' line='578' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='block/blk-map.c' line='578' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_rq_unmap_user' mangled-name='blk_rq_unmap_user' filepath='block/blk-map.c' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_rq_unmap_user'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/blk-map.c' line='642' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_set_queue_dying' mangled-name='blk_set_queue_dying' filepath='block/blk-core.c' line='342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_set_queue_dying'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='342' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_status_to_errno' mangled-name='blk_status_to_errno' filepath='include/linux/blkdev.h' line='979' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_status_to_errno'>
+        <parameter type-id='f4e2facd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blk_sync_queue' mangled-name='blk_sync_queue' filepath='block/blk-core.c' line='298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_sync_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='298' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blk_update_request' mangled-name='blk_update_request' filepath='block/blk-core.c' line='1433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_update_request'>
+        <parameter type-id='3dad1a48' name='req' filepath='block/blk-core.c' line='1433' column='1'/>
+        <parameter type-id='f4e2facd' name='error' filepath='block/blk-core.c' line='1433' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_bytes' filepath='block/blk-core.c' line='1434' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='blk_verify_command' mangled-name='blk_verify_command' filepath='block/scsi_ioctl.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_verify_command'>
+        <parameter type-id='cf536864' name='cmd' filepath='block/scsi_ioctl.c' line='200' column='1'/>
+        <parameter type-id='2665334e' name='mode' filepath='block/scsi_ioctl.c' line='200' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blkdev_get_by_dev' mangled-name='blkdev_get_by_dev' filepath='include/linux/blkdev.h' line='2040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_get_by_dev'>
+        <parameter type-id='8504f260'/>
+        <parameter type-id='2665334e'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='b88dd945'/>
+      </function-decl>
+      <function-decl name='blkdev_get_by_path' mangled-name='blkdev_get_by_path' filepath='include/linux/blkdev.h' line='2038' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_get_by_path'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2665334e'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='b88dd945'/>
+      </function-decl>
+      <function-decl name='blkdev_put' mangled-name='blkdev_put' filepath='include/linux/blkdev.h' line='2045' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_put'>
+        <parameter type-id='b88dd945'/>
+        <parameter type-id='2665334e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='blocking_notifier_call_chain' mangled-name='blocking_notifier_call_chain' filepath='include/linux/notifier.h' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_call_chain'>
+        <parameter type-id='282b7312'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blocking_notifier_chain_register' mangled-name='blocking_notifier_chain_register' filepath='include/linux/notifier.h' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_register'>
+        <parameter type-id='282b7312'/>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='blocking_notifier_chain_unregister' mangled-name='blocking_notifier_chain_unregister' filepath='include/linux/notifier.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_unregister'>
+        <parameter type-id='282b7312'/>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bpf_dispatcher_xdp_func' mangled-name='bpf_dispatcher_xdp_func' filepath='include/linux/filter.h' line='747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_dispatcher_xdp_func'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='acada613'/>
+        <parameter type-id='531a7450'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='bpf_prog_add' mangled-name='bpf_prog_add' filepath='kernel/bpf/syscall.c' line='1875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_add'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1875' column='1'/>
+        <parameter type-id='95e97e5e' name='i' filepath='kernel/bpf/syscall.c' line='1875' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_prog_put' mangled-name='bpf_prog_put' filepath='kernel/bpf/syscall.c' line='1777' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_put'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1777' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_prog_sub' mangled-name='bpf_prog_sub' filepath='kernel/bpf/syscall.c' line='1881' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_sub'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1881' column='1'/>
+        <parameter type-id='95e97e5e' name='i' filepath='kernel/bpf/syscall.c' line='1881' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='bpf_stats_enabled_key' type-id='237c0d27' mangled-name='bpf_stats_enabled_key' visibility='default' filepath='kernel/bpf/core.c' line='2353' column='1' elf-symbol-id='bpf_stats_enabled_key'/>
+      <function-decl name='bpf_trace_run1' mangled-name='bpf_trace_run1' filepath='include/linux/trace_events.h' line='752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run1'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run10' mangled-name='bpf_trace_run10' filepath='kernel/trace/bpf_trace.c' line='2088' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run10'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg6' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg7' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg8' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <parameter type-id='91ce1af9' name='arg9' filepath='kernel/trace/bpf_trace.c' line='2088' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run11' mangled-name='bpf_trace_run11' filepath='kernel/trace/bpf_trace.c' line='2089' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run11'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg6' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg7' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg8' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg9' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <parameter type-id='91ce1af9' name='arg10' filepath='kernel/trace/bpf_trace.c' line='2089' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run12' mangled-name='bpf_trace_run12' filepath='kernel/trace/bpf_trace.c' line='2090' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run12'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg6' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg7' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg8' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg9' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg10' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <parameter type-id='91ce1af9' name='arg11' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run2' mangled-name='bpf_trace_run2' filepath='include/linux/trace_events.h' line='753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run2'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run3' mangled-name='bpf_trace_run3' filepath='include/linux/trace_events.h' line='754' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run3'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run4' mangled-name='bpf_trace_run4' filepath='include/linux/trace_events.h' line='756' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run4'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run5' mangled-name='bpf_trace_run5' filepath='include/linux/trace_events.h' line='758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run5'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run6' mangled-name='bpf_trace_run6' filepath='include/linux/trace_events.h' line='760' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run6'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run7' mangled-name='bpf_trace_run7' filepath='include/linux/trace_events.h' line='762' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run7'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run8' mangled-name='bpf_trace_run8' filepath='include/linux/trace_events.h' line='764' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run8'>
+        <parameter type-id='bdcee7ae'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_trace_run9' mangled-name='bpf_trace_run9' filepath='kernel/trace/bpf_trace.c' line='2087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run9'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg6' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg7' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <parameter type-id='91ce1af9' name='arg8' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bpf_warn_invalid_xdp_action' mangled-name='bpf_warn_invalid_xdp_action' filepath='include/linux/filter.h' line='980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_warn_invalid_xdp_action'>
+        <parameter type-id='19c2251e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bt_err' mangled-name='bt_err' filepath='include/net/bluetooth/bluetooth.h' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_err'>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bt_info' mangled-name='bt_info' filepath='include/net/bluetooth/bluetooth.h' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_info'>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bt_to_errno' mangled-name='bt_to_errno' filepath='include/net/bluetooth/bluetooth.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_to_errno'>
+        <parameter type-id='1dc6a898'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bt_warn' mangled-name='bt_warn' filepath='include/net/bluetooth/bluetooth.h' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_warn'>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='btbcm_set_bdaddr' mangled-name='btbcm_set_bdaddr' filepath='drivers/bluetooth/btbcm.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='btbcm_set_bdaddr'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='drivers/bluetooth/btbcm.c' line='99' column='1'/>
+        <parameter type-id='c3e18af8' name='bdaddr' filepath='drivers/bluetooth/btbcm.c' line='99' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='btbcm_setup_apple' mangled-name='btbcm_setup_apple' filepath='drivers/bluetooth/btbcm.c' line='569' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='btbcm_setup_apple'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='drivers/bluetooth/btbcm.c' line='569' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='btbcm_setup_patchram' mangled-name='btbcm_setup_patchram' filepath='drivers/bluetooth/btbcm.c' line='554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='btbcm_setup_patchram'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='drivers/bluetooth/btbcm.c' line='554' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='build_skb' mangled-name='build_skb' filepath='include/linux/skbuff.h' line='1087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='build_skb'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='bus_find_device' mangled-name='bus_find_device' filepath='include/linux/device/bus.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_find_device'>
+        <parameter type-id='5e2671f8'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='92d15ae9'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='bus_for_each_dev' mangled-name='bus_for_each_dev' filepath='include/linux/device/bus.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_for_each_dev'>
+        <parameter type-id='5e2671f8'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='92d15ae9'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bus_for_each_drv' mangled-name='bus_for_each_drv' filepath='drivers/base/bus.c' line='418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_for_each_drv'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='418' column='1'/>
+        <parameter type-id='00c7b870' name='start' filepath='drivers/base/bus.c' line='418' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/bus.c' line='419' column='1'/>
+        <parameter type-id='24a62f42' name='fn' filepath='drivers/base/bus.c' line='419' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bus_register' mangled-name='bus_register' filepath='include/linux/device/bus.h' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_register'>
+        <parameter type-id='5e2671f8'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bus_register_notifier' mangled-name='bus_register_notifier' filepath='drivers/base/bus.c' line='901' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_register_notifier'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='901' column='1'/>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/base/bus.c' line='901' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bus_set_iommu' mangled-name='bus_set_iommu' filepath='drivers/iommu/iommu.c' line='1840' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_set_iommu'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/iommu/iommu.c' line='1840' column='1'/>
+        <parameter type-id='f1ac64d0' name='ops' filepath='drivers/iommu/iommu.c' line='1840' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='bus_unregister' mangled-name='bus_unregister' filepath='include/linux/device/bus.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_unregister'>
+        <parameter type-id='5e2671f8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='bus_unregister_notifier' mangled-name='bus_unregister_notifier' filepath='drivers/base/bus.c' line='907' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_unregister_notifier'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='907' column='1'/>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/base/bus.c' line='907' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cache_line_size' mangled-name='cache_line_size' filepath='arch/arm64/kernel/cacheinfo.c' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cache_line_size'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='call_netdevice_notifiers' mangled-name='call_netdevice_notifiers' filepath='net/core/dev.c' line='2078' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='call_netdevice_notifiers'>
+        <parameter type-id='7359adad' name='val' filepath='net/core/dev.c' line='2078' column='1'/>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='2078' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='can_change_mtu' mangled-name='can_change_mtu' filepath='drivers/net/can/dev/dev.c' line='807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='can_change_mtu'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='807' column='1'/>
+        <parameter type-id='95e97e5e' name='new_mtu' filepath='drivers/net/can/dev/dev.c' line='807' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='can_free_echo_skb' mangled-name='can_free_echo_skb' filepath='drivers/net/can/dev/dev.c' line='559' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='can_free_echo_skb'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='559' column='1'/>
+        <parameter type-id='f0981eeb' name='idx' filepath='drivers/net/can/dev/dev.c' line='559' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='can_get_echo_skb' mangled-name='can_get_echo_skb' filepath='drivers/net/can/dev/dev.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='can_get_echo_skb'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='536' column='1'/>
+        <parameter type-id='f0981eeb' name='idx' filepath='drivers/net/can/dev/dev.c' line='536' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='can_put_echo_skb' mangled-name='can_put_echo_skb' filepath='drivers/net/can/dev/dev.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='can_put_echo_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='drivers/net/can/dev/dev.c' line='460' column='1'/>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='460' column='1'/>
+        <parameter type-id='f0981eeb' name='idx' filepath='drivers/net/can/dev/dev.c' line='461' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cancel_delayed_work' mangled-name='cancel_delayed_work' filepath='kernel/workqueue.c' line='3277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cancel_delayed_work'>
+        <parameter type-id='1a7ee447' name='dwork' filepath='kernel/workqueue.c' line='3277' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='cancel_delayed_work_sync' mangled-name='cancel_delayed_work_sync' filepath='kernel/workqueue.c' line='3292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cancel_delayed_work_sync'>
+        <parameter type-id='1a7ee447' name='dwork' filepath='kernel/workqueue.c' line='3292' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='cancel_work_sync' mangled-name='cancel_work_sync' filepath='kernel/workqueue.c' line='3196' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cancel_work_sync'>
+        <parameter type-id='83c1bde6' name='work' filepath='kernel/workqueue.c' line='3196' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='capable' mangled-name='capable' filepath='include/linux/capability.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='capable'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='cdev_add' mangled-name='cdev_add' filepath='fs/char_dev.c' line='479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_add'>
+        <parameter type-id='3e6eb939' name='p' filepath='fs/char_dev.c' line='479' column='1'/>
+        <parameter type-id='8504f260' name='dev' filepath='fs/char_dev.c' line='479' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='479' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cdev_alloc' mangled-name='cdev_alloc' filepath='fs/char_dev.c' line='633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_alloc'>
+        <return type-id='3e6eb939'/>
+      </function-decl>
+      <function-decl name='cdev_del' mangled-name='cdev_del' filepath='fs/char_dev.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_del'>
+        <parameter type-id='3e6eb939' name='p' filepath='fs/char_dev.c' line='594' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cdev_device_add' mangled-name='cdev_device_add' filepath='include/linux/cdev.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_device_add'>
+        <parameter type-id='3e6eb939'/>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cdev_device_del' mangled-name='cdev_device_del' filepath='include/linux/cdev.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_device_del'>
+        <parameter type-id='3e6eb939'/>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cdev_init' mangled-name='cdev_init' filepath='include/linux/cdev.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_init'>
+        <parameter type-id='3e6eb939'/>
+        <parameter type-id='61758ee5'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_allocate_adapter' mangled-name='cec_allocate_adapter' filepath='drivers/media/cec/core/cec-core.c' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_allocate_adapter'>
+        <parameter type-id='4bc4fd45' name='ops' filepath='drivers/media/cec/core/cec-core.c' line='235' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/cec/core/cec-core.c' line='236' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/media/cec/core/cec-core.c' line='236' column='1'/>
+        <parameter type-id='19c2251e' name='caps' filepath='drivers/media/cec/core/cec-core.c' line='236' column='1'/>
+        <parameter type-id='f9b06939' name='available_las' filepath='drivers/media/cec/core/cec-core.c' line='237' column='1'/>
+        <return type-id='b94a2f7c'/>
+      </function-decl>
+      <function-decl name='cec_delete_adapter' mangled-name='cec_delete_adapter' filepath='drivers/media/cec/core/cec-core.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_delete_adapter'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-core.c' line='395' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_received_msg_ts' mangled-name='cec_received_msg_ts' filepath='drivers/media/cec/core/cec-adap.c' line='1041' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_received_msg_ts'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-adap.c' line='1041' column='1'/>
+        <parameter type-id='ffb3cc6e' name='msg' filepath='drivers/media/cec/core/cec-adap.c' line='1042' column='1'/>
+        <parameter type-id='fbc017ef' name='ts' filepath='drivers/media/cec/core/cec-adap.c' line='1042' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_register_adapter' mangled-name='cec_register_adapter' filepath='drivers/media/cec/core/cec-core.c' line='318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_register_adapter'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-core.c' line='318' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/media/cec/core/cec-core.c' line='319' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cec_s_log_addrs' mangled-name='cec_s_log_addrs' filepath='drivers/media/cec/core/cec-adap.c' line='1816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_s_log_addrs'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-adap.c' line='1816' column='1'/>
+        <parameter type-id='ebc04a66' name='log_addrs' filepath='drivers/media/cec/core/cec-adap.c' line='1817' column='1'/>
+        <parameter type-id='b50a4934' name='block' filepath='drivers/media/cec/core/cec-adap.c' line='1817' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cec_s_phys_addr' mangled-name='cec_s_phys_addr' filepath='drivers/media/cec/core/cec-adap.c' line='1612' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_s_phys_addr'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-adap.c' line='1612' column='1'/>
+        <parameter type-id='1dc6a898' name='phys_addr' filepath='drivers/media/cec/core/cec-adap.c' line='1612' column='1'/>
+        <parameter type-id='b50a4934' name='block' filepath='drivers/media/cec/core/cec-adap.c' line='1612' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_s_phys_addr_from_edid' mangled-name='cec_s_phys_addr_from_edid' filepath='drivers/media/cec/core/cec-adap.c' line='1623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_s_phys_addr_from_edid'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-adap.c' line='1623' column='1'/>
+        <parameter type-id='776adf76' name='edid' filepath='drivers/media/cec/core/cec-adap.c' line='1624' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_transmit_attempt_done_ts' mangled-name='cec_transmit_attempt_done_ts' filepath='drivers/media/cec/core/cec-adap.c' line='690' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_transmit_attempt_done_ts'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-adap.c' line='690' column='1'/>
+        <parameter type-id='f9b06939' name='status' filepath='drivers/media/cec/core/cec-adap.c' line='691' column='1'/>
+        <parameter type-id='fbc017ef' name='ts' filepath='drivers/media/cec/core/cec-adap.c' line='691' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_transmit_done_ts' mangled-name='cec_transmit_done_ts' filepath='drivers/media/cec/core/cec-adap.c' line='593' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_transmit_done_ts'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-adap.c' line='593' column='1'/>
+        <parameter type-id='f9b06939' name='status' filepath='drivers/media/cec/core/cec-adap.c' line='593' column='1'/>
+        <parameter type-id='f9b06939' name='arb_lost_cnt' filepath='drivers/media/cec/core/cec-adap.c' line='594' column='1'/>
+        <parameter type-id='f9b06939' name='nack_cnt' filepath='drivers/media/cec/core/cec-adap.c' line='594' column='1'/>
+        <parameter type-id='f9b06939' name='low_drive_cnt' filepath='drivers/media/cec/core/cec-adap.c' line='594' column='1'/>
+        <parameter type-id='f9b06939' name='error_cnt' filepath='drivers/media/cec/core/cec-adap.c' line='595' column='1'/>
+        <parameter type-id='fbc017ef' name='ts' filepath='drivers/media/cec/core/cec-adap.c' line='595' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cec_unregister_adapter' mangled-name='cec_unregister_adapter' filepath='drivers/media/cec/core/cec-core.c' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_unregister_adapter'>
+        <parameter type-id='b94a2f7c' name='adap' filepath='drivers/media/cec/core/cec-core.c' line='377' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_calculate_bitrate' mangled-name='cfg80211_calculate_bitrate' filepath='net/wireless/util.c' line='1402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_calculate_bitrate'>
+        <parameter type-id='185e765a' name='rate' filepath='net/wireless/util.c' line='1402' column='1'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='cfg80211_ch_switch_notify' mangled-name='cfg80211_ch_switch_notify' filepath='net/wireless/nl80211.c' line='17113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ch_switch_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17113' column='1'/>
+        <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='17114' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_chandef_create' mangled-name='cfg80211_chandef_create' filepath='include/net/cfg80211.h' line='791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_chandef_create'>
+        <parameter type-id='0953fbfe'/>
+        <parameter type-id='ec00acfb'/>
+        <parameter type-id='9e446de7'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_connect_done' mangled-name='cfg80211_connect_done' filepath='net/wireless/sme.c' line='789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_connect_done'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='789' column='1'/>
+        <parameter type-id='b1d9990a' name='params' filepath='net/wireless/sme.c' line='790' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='791' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_del_sta_sinfo' mangled-name='cfg80211_del_sta_sinfo' filepath='net/wireless/nl80211.c' line='16485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_del_sta_sinfo'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16485' column='1'/>
+        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16485' column='1'/>
+        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16486' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16486' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_disconnected' mangled-name='cfg80211_disconnected' filepath='net/wireless/sme.c' line='1142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_disconnected'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='1142' column='1'/>
+        <parameter type-id='1dc6a898' name='reason' filepath='net/wireless/sme.c' line='1142' column='1'/>
+        <parameter type-id='bbaf3419' name='ie' filepath='net/wireless/sme.c' line='1143' column='1'/>
+        <parameter type-id='b59d7dce' name='ie_len' filepath='net/wireless/sme.c' line='1143' column='1'/>
+        <parameter type-id='b50a4934' name='locally_generated' filepath='net/wireless/sme.c' line='1144' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1144' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17738' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17738' column='1'/>
+        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17739' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17740' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cfg80211_find_elem_match' mangled-name='cfg80211_find_elem_match' filepath='include/net/cfg80211.h' line='5753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_elem_match'>
+        <parameter type-id='f9b06939'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='aa7ca86a'/>
+      </function-decl>
+      <function-decl name='cfg80211_find_vendor_elem' mangled-name='cfg80211_find_vendor_elem' filepath='net/wireless/scan.c' line='1232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_vendor_elem'>
+        <parameter type-id='f0981eeb' name='oui' filepath='net/wireless/scan.c' line='1232' column='1'/>
+        <parameter type-id='95e97e5e' name='oui_type' filepath='net/wireless/scan.c' line='1232' column='1'/>
+        <parameter type-id='bbaf3419' name='ies' filepath='net/wireless/scan.c' line='1233' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/wireless/scan.c' line='1234' column='1'/>
+        <return type-id='aa7ca86a'/>
+      </function-decl>
+      <function-decl name='cfg80211_get_bss' mangled-name='cfg80211_get_bss' filepath='net/wireless/scan.c' line='1412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_get_bss'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1412' column='1'/>
+        <parameter type-id='ec00acfb' name='channel' filepath='net/wireless/scan.c' line='1413' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/scan.c' line='1414' column='1'/>
+        <parameter type-id='bbaf3419' name='ssid' filepath='net/wireless/scan.c' line='1415' column='1'/>
+        <parameter type-id='b59d7dce' name='ssid_len' filepath='net/wireless/scan.c' line='1415' column='1'/>
+        <parameter type-id='cb952348' name='bss_type' filepath='net/wireless/scan.c' line='1416' column='1'/>
+        <parameter type-id='d2b455cb' name='privacy' filepath='net/wireless/scan.c' line='1417' column='1'/>
+        <return type-id='bda81d86'/>
+      </function-decl>
+      <function-decl name='cfg80211_gtk_rekey_notify' mangled-name='cfg80211_gtk_rekey_notify' filepath='net/wireless/nl80211.c' line='17004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_gtk_rekey_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17004' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17004' column='1'/>
+        <parameter type-id='bbaf3419' name='replay_ctr' filepath='net/wireless/nl80211.c' line='17005' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17005' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_ibss_joined' mangled-name='cfg80211_ibss_joined' filepath='net/wireless/ibss.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ibss_joined'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/ibss.c' line='59' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/ibss.c' line='59' column='1'/>
+        <parameter type-id='ec00acfb' name='channel' filepath='net/wireless/ibss.c' line='60' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/ibss.c' line='60' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_inform_bss_data' mangled-name='cfg80211_inform_bss_data' filepath='net/wireless/scan.c' line='2166' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_inform_bss_data'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='2166' column='1'/>
+        <parameter type-id='6ff43814' name='data' filepath='net/wireless/scan.c' line='2167' column='1'/>
+        <parameter type-id='b556f108' name='ftype' filepath='net/wireless/scan.c' line='2168' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/scan.c' line='2169' column='1'/>
+        <parameter type-id='91ce1af9' name='tsf' filepath='net/wireless/scan.c' line='2169' column='1'/>
+        <parameter type-id='1dc6a898' name='capability' filepath='net/wireless/scan.c' line='2169' column='1'/>
+        <parameter type-id='1dc6a898' name='beacon_interval' filepath='net/wireless/scan.c' line='2170' column='1'/>
+        <parameter type-id='bbaf3419' name='ie' filepath='net/wireless/scan.c' line='2170' column='1'/>
+        <parameter type-id='b59d7dce' name='ielen' filepath='net/wireless/scan.c' line='2170' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/scan.c' line='2171' column='1'/>
+        <return type-id='bda81d86'/>
+      </function-decl>
+      <function-decl name='cfg80211_inform_bss_frame_data' mangled-name='cfg80211_inform_bss_frame_data' filepath='net/wireless/scan.c' line='2425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_inform_bss_frame_data'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='2425' column='1'/>
+        <parameter type-id='6ff43814' name='data' filepath='net/wireless/scan.c' line='2426' column='1'/>
+        <parameter type-id='57a568d1' name='mgmt' filepath='net/wireless/scan.c' line='2427' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/scan.c' line='2427' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/scan.c' line='2428' column='1'/>
+        <return type-id='bda81d86'/>
+      </function-decl>
+      <function-decl name='cfg80211_mgmt_tx_status' mangled-name='cfg80211_mgmt_tx_status' filepath='net/wireless/nl80211.c' line='16725' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_mgmt_tx_status'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16725' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16725' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
+        <parameter type-id='b50a4934' name='ack' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_michael_mic_failure' mangled-name='cfg80211_michael_mic_failure' filepath='net/wireless/mlme.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_michael_mic_failure'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/mlme.c' line='202' column='1'/>
+        <parameter type-id='bbaf3419' name='addr' filepath='net/wireless/mlme.c' line='202' column='1'/>
+        <parameter type-id='fa66a097' name='key_type' filepath='net/wireless/mlme.c' line='203' column='1'/>
+        <parameter type-id='95e97e5e' name='key_id' filepath='net/wireless/mlme.c' line='203' column='1'/>
+        <parameter type-id='bbaf3419' name='tsc' filepath='net/wireless/mlme.c' line='204' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/mlme.c' line='204' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_new_sta' mangled-name='cfg80211_new_sta' filepath='net/wireless/nl80211.c' line='16461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_new_sta'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16461' column='1'/>
+        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16461' column='1'/>
+        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16462' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16462' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_pmksa_candidate_notify' mangled-name='cfg80211_pmksa_candidate_notify' filepath='net/wireless/nl80211.c' line='17061' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_pmksa_candidate_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17061' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='net/wireless/nl80211.c' line='17061' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17062' column='1'/>
+        <parameter type-id='b50a4934' name='preauth' filepath='net/wireless/nl80211.c' line='17062' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17062' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_port_authorized' mangled-name='cfg80211_port_authorized' filepath='net/wireless/sme.c' line='1048' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_port_authorized'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='1048' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/sme.c' line='1048' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1049' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_put_bss' mangled-name='cfg80211_put_bss' filepath='include/net/cfg80211.h' line='6341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_put_bss'>
+        <parameter type-id='666fb412'/>
+        <parameter type-id='bda81d86'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='16421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16421' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16421' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16422' column='1'/>
+        <parameter type-id='f0981eeb' name='duration' filepath='net/wireless/nl80211.c' line='16423' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16423' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_remain_on_channel_expired' mangled-name='cfg80211_remain_on_channel_expired' filepath='net/wireless/nl80211.c' line='16435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_remain_on_channel_expired'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16436' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16437' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_roamed' mangled-name='cfg80211_roamed' filepath='net/wireless/sme.c' line='958' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_roamed'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/sme.c' line='958' column='1'/>
+        <parameter type-id='e88825dc' name='info' filepath='net/wireless/sme.c' line='958' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='959' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_rx_mgmt_khz' mangled-name='cfg80211_rx_mgmt_khz' filepath='net/wireless/mlme.c' line='758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_mgmt_khz'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/mlme.c' line='758' column='1'/>
+        <parameter type-id='95e97e5e' name='freq' filepath='net/wireless/mlme.c' line='758' column='1'/>
+        <parameter type-id='95e97e5e' name='sig_dbm' filepath='net/wireless/mlme.c' line='758' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/mlme.c' line='759' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/mlme.c' line='759' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='net/wireless/mlme.c' line='759' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='cfg80211_rx_unprot_mlme_mgmt' mangled-name='cfg80211_rx_unprot_mlme_mgmt' filepath='net/wireless/nl80211.c' line='15949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_unprot_mlme_mgmt'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15949' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='15949' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='15950' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_scan_done' mangled-name='cfg80211_scan_done' filepath='net/wireless/scan.c' line='1000' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_scan_done'>
+        <parameter type-id='a9e8b173' name='request' filepath='net/wireless/scan.c' line='1000' column='1'/>
+        <parameter type-id='40cd17b4' name='info' filepath='net/wireless/scan.c' line='1001' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_sched_scan_results' mangled-name='cfg80211_sched_scan_results' filepath='net/wireless/scan.c' line='1116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_sched_scan_results'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1116' column='1'/>
+        <parameter type-id='91ce1af9' name='reqid' filepath='net/wireless/scan.c' line='1116' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_sched_scan_stopped' mangled-name='cfg80211_sched_scan_stopped' filepath='net/wireless/scan.c' line='1146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_sched_scan_stopped'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1146' column='1'/>
+        <parameter type-id='91ce1af9' name='reqid' filepath='net/wireless/scan.c' line='1146' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_sched_scan_stopped_rtnl' mangled-name='cfg80211_sched_scan_stopped_rtnl' filepath='net/wireless/scan.c' line='1134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_sched_scan_stopped_rtnl'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='1134' column='1'/>
+        <parameter type-id='91ce1af9' name='reqid' filepath='net/wireless/scan.c' line='1134' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_stop_iface' mangled-name='cfg80211_stop_iface' filepath='net/wireless/core.c' line='1232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_stop_iface'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/core.c' line='1232' column='1'/>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/core.c' line='1232' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/core.c' line='1233' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17520' column='1'/>
+        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17520' column='1'/>
+        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17521' column='1'/>
+        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17522' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17522' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_unlink_bss' mangled-name='cfg80211_unlink_bss' filepath='net/wireless/scan.c' line='2507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_unlink_bss'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='2507' column='1'/>
+        <parameter type-id='bda81d86' name='pub' filepath='net/wireless/scan.c' line='2507' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_unregister_wdev' mangled-name='cfg80211_unregister_wdev' filepath='net/wireless/core.c' line='1141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_unregister_wdev'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/core.c' line='1141' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
+        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17779' column='1'/>
+        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17780' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17781' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='13816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='13816' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='class_destroy' mangled-name='class_destroy' filepath='include/linux/device/class.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_destroy'>
+        <parameter type-id='67aca04f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='class_interface_unregister' mangled-name='class_interface_unregister' filepath='include/linux/device/class.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_interface_unregister'>
+        <parameter type-id='ec167ceb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='class_unregister' mangled-name='class_unregister' filepath='include/linux/device/class.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_unregister'>
+        <parameter type-id='67aca04f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cleanup_srcu_struct' mangled-name='cleanup_srcu_struct' filepath='include/linux/srcu.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cleanup_srcu_struct'>
+        <parameter type-id='f7d7131a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_bulk_disable' mangled-name='clk_bulk_disable' filepath='include/linux/clk.h' line='555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_disable'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f034b024'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_bulk_enable' mangled-name='clk_bulk_enable' filepath='include/linux/clk.h' line='520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_enable'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f034b024'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_bulk_prepare' mangled-name='clk_bulk_prepare' filepath='include/linux/clk.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_prepare'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f034b024'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_bulk_unprepare' mangled-name='clk_bulk_unprepare' filepath='include/linux/clk.h' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_unprepare'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f034b024'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_disable' mangled-name='clk_disable' filepath='include/linux/clk.h' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_disable'>
+        <parameter type-id='7d0bc0eb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_enable' mangled-name='clk_enable' filepath='include/linux/clk.h' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_enable'>
+        <parameter type-id='7d0bc0eb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='clk_fixed_factor_ops' type-id='92072f8b' mangled-name='clk_fixed_factor_ops' visibility='default' filepath='drivers/clk/clk-fixed-factor.c' line='60' column='1' elf-symbol-id='clk_fixed_factor_ops'/>
+      <var-decl name='clk_fixed_rate_ops' type-id='92072f8b' mangled-name='clk_fixed_rate_ops' visibility='default' filepath='drivers/clk/clk-fixed-rate.c' line='46' column='1' elf-symbol-id='clk_fixed_rate_ops'/>
+      <function-decl name='clk_get' mangled-name='clk_get' filepath='include/linux/clk.h' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='clk_get_parent' mangled-name='clk_get_parent' filepath='drivers/clk/clk.c' line='2489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get_parent'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='2489' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='clk_get_rate' mangled-name='clk_get_rate' filepath='include/linux/clk.h' line='562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get_rate'>
+        <parameter type-id='7d0bc0eb'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='clk_hw_get_flags' mangled-name='clk_hw_get_flags' filepath='drivers/clk/clk.c' line='505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_flags'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='505' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='clk_hw_get_name' mangled-name='clk_hw_get_name' filepath='drivers/clk/clk.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_name'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='272' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='clk_hw_get_num_parents' mangled-name='clk_hw_get_num_parents' filepath='drivers/clk/clk.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_num_parents'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='284' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='clk_hw_get_parent' mangled-name='clk_hw_get_parent' filepath='drivers/clk/clk.c' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_parent'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='290' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='clk_hw_get_parent_by_index' mangled-name='clk_hw_get_parent_by_index' filepath='drivers/clk/clk.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_parent_by_index'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='460' column='1'/>
+        <parameter type-id='f0981eeb' name='index' filepath='drivers/clk/clk.c' line='460' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='clk_hw_get_rate' mangled-name='clk_hw_get_rate' filepath='drivers/clk/clk.c' line='491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_rate'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='491' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='clk_hw_is_enabled' mangled-name='clk_hw_is_enabled' filepath='drivers/clk/clk.c' line='523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_is_enabled'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='523' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='clk_hw_is_prepared' mangled-name='clk_hw_is_prepared' filepath='drivers/clk/clk.c' line='511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_is_prepared'>
+        <parameter type-id='9e6d4b4e' name='hw' filepath='drivers/clk/clk.c' line='511' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='clk_hw_register' mangled-name='clk_hw_register' filepath='drivers/clk/clk.c' line='4010' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='4010' column='1'/>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='4010' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_hw_register_fixed_factor' mangled-name='clk_hw_register_fixed_factor' filepath='drivers/clk/clk-fixed-factor.c' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_register_fixed_factor'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-fixed-factor.c' line='109' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk-fixed-factor.c' line='110' column='1'/>
+        <parameter type-id='80f4b756' name='parent_name' filepath='drivers/clk/clk-fixed-factor.c' line='110' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-fixed-factor.c' line='110' column='1'/>
+        <parameter type-id='f0981eeb' name='mult' filepath='drivers/clk/clk-fixed-factor.c' line='111' column='1'/>
+        <parameter type-id='f0981eeb' name='div' filepath='drivers/clk/clk-fixed-factor.c' line='111' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='clk_hw_round_rate' mangled-name='clk_hw_round_rate' filepath='drivers/clk/clk.c' line='1454' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_round_rate'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='1454' column='1'/>
+        <parameter type-id='7359adad' name='rate' filepath='drivers/clk/clk.c' line='1454' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='clk_hw_set_rate_range' mangled-name='clk_hw_set_rate_range' filepath='drivers/clk/clk.c' line='636' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_set_rate_range'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='636' column='1'/>
+        <parameter type-id='7359adad' name='min_rate' filepath='drivers/clk/clk.c' line='636' column='1'/>
+        <parameter type-id='7359adad' name='max_rate' filepath='drivers/clk/clk.c' line='637' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_hw_unregister' mangled-name='clk_hw_unregister' filepath='drivers/clk/clk.c' line='4175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_unregister'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='4175' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_hw_unregister_divider' mangled-name='clk_hw_unregister_divider' filepath='drivers/clk/clk-divider.c' line='576' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_unregister_divider'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk-divider.c' line='576' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_hw_unregister_fixed_factor' mangled-name='clk_hw_unregister_fixed_factor' filepath='drivers/clk/clk-fixed-factor.c' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_unregister_fixed_factor'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk-fixed-factor.c' line='145' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_hw_unregister_mux' mangled-name='clk_hw_unregister_mux' filepath='drivers/clk/clk-mux.c' line='241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_unregister_mux'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk-mux.c' line='241' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_notifier_register' mangled-name='clk_notifier_register' filepath='drivers/clk/clk.c' line='4405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_notifier_register'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='4405' column='1'/>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/clk/clk.c' line='4405' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_notifier_unregister' mangled-name='clk_notifier_unregister' filepath='drivers/clk/clk.c' line='4453' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_notifier_unregister'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='4453' column='1'/>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/clk/clk.c' line='4453' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_prepare' mangled-name='clk_prepare' filepath='include/linux/clk.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_prepare'>
+        <parameter type-id='7d0bc0eb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_put' mangled-name='clk_put' filepath='drivers/clk/clkdev.c' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_put'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clkdev.c' line='115' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_register' mangled-name='clk_register' filepath='drivers/clk/clk.c' line='3994' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='3994' column='1'/>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='3994' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='clk_register_clkdev' mangled-name='clk_register_clkdev' filepath='drivers/clk/clkdev.c' line='341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_register_clkdev'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clkdev.c' line='341' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/clk/clkdev.c' line='341' column='1'/>
+        <parameter type-id='80f4b756' name='dev_id' filepath='drivers/clk/clkdev.c' line='342' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_register_fixed_factor' mangled-name='clk_register_fixed_factor' filepath='drivers/clk/clk-fixed-factor.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_register_fixed_factor'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-fixed-factor.c' line='118' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk-fixed-factor.c' line='118' column='1'/>
+        <parameter type-id='80f4b756' name='parent_name' filepath='drivers/clk/clk-fixed-factor.c' line='119' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-fixed-factor.c' line='119' column='1'/>
+        <parameter type-id='f0981eeb' name='mult' filepath='drivers/clk/clk-fixed-factor.c' line='120' column='1'/>
+        <parameter type-id='f0981eeb' name='div' filepath='drivers/clk/clk-fixed-factor.c' line='120' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='clk_register_fixed_rate' mangled-name='clk_register_fixed_rate' filepath='drivers/clk/clk-fixed-rate.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_register_fixed_rate'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-fixed-rate.c' line='101' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk-fixed-rate.c' line='101' column='1'/>
+        <parameter type-id='80f4b756' name='parent_name' filepath='drivers/clk/clk-fixed-rate.c' line='102' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-fixed-rate.c' line='102' column='1'/>
+        <parameter type-id='7359adad' name='fixed_rate' filepath='drivers/clk/clk-fixed-rate.c' line='103' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='clk_register_gate' mangled-name='clk_register_gate' filepath='drivers/clk/clk-gate.c' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_register_gate'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-gate.c' line='184' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk-gate.c' line='184' column='1'/>
+        <parameter type-id='80f4b756' name='parent_name' filepath='drivers/clk/clk-gate.c' line='185' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-gate.c' line='185' column='1'/>
+        <parameter type-id='eaa32e2f' name='reg' filepath='drivers/clk/clk-gate.c' line='186' column='1'/>
+        <parameter type-id='f9b06939' name='bit_idx' filepath='drivers/clk/clk-gate.c' line='186' column='1'/>
+        <parameter type-id='f9b06939' name='clk_gate_flags' filepath='drivers/clk/clk-gate.c' line='187' column='1'/>
+        <parameter type-id='cff2d845' name='lock' filepath='drivers/clk/clk-gate.c' line='187' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='clk_round_rate' mangled-name='clk_round_rate' filepath='drivers/clk/clk.c' line='1479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_round_rate'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='1479' column='1'/>
+        <parameter type-id='7359adad' name='rate' filepath='drivers/clk/clk.c' line='1479' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='clk_set_parent' mangled-name='clk_set_parent' filepath='drivers/clk/clk.c' line='2653' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_set_parent'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='2653' column='1'/>
+        <parameter type-id='7d0bc0eb' name='parent' filepath='drivers/clk/clk.c' line='2653' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_set_rate' mangled-name='clk_set_rate' filepath='include/linux/clk.h' line='653' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_set_rate'>
+        <parameter type-id='7d0bc0eb'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='clk_sync_state' mangled-name='clk_sync_state' filepath='drivers/clk/clk.c' line='1327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_sync_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='1327' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_unprepare' mangled-name='clk_unprepare' filepath='include/linux/clk.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_unprepare'>
+        <parameter type-id='7d0bc0eb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clk_unregister' mangled-name='clk_unregister' filepath='drivers/clk/clk.c' line='4113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_unregister'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='4113' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clockevents_config_and_register' mangled-name='clockevents_config_and_register' filepath='include/linux/clockchips.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clockevents_config_and_register'>
+        <parameter type-id='aff725d5'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='clocks_calc_mult_shift' mangled-name='clocks_calc_mult_shift' filepath='kernel/time/clocksource.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clocks_calc_mult_shift'>
+        <parameter type-id='f9409001' name='mult' filepath='kernel/time/clocksource.c' line='45' column='1'/>
+        <parameter type-id='f9409001' name='shift' filepath='kernel/time/clocksource.c' line='45' column='1'/>
+        <parameter type-id='19c2251e' name='from' filepath='kernel/time/clocksource.c' line='45' column='1'/>
+        <parameter type-id='19c2251e' name='to' filepath='kernel/time/clocksource.c' line='45' column='1'/>
+        <parameter type-id='19c2251e' name='maxsec' filepath='kernel/time/clocksource.c' line='45' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='close_candev' mangled-name='close_candev' filepath='drivers/net/can/dev/dev.c' line='902' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='close_candev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='902' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cma_alloc' mangled-name='cma_alloc' filepath='include/linux/cma.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_alloc'>
+        <parameter type-id='6f67b38a'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='02f11ed4'/>
+      </function-decl>
+      <function-decl name='cma_for_each_area' mangled-name='cma_for_each_area' filepath='mm/cma.c' line='618' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_for_each_area'>
+        <parameter type-id='0b3f2e4c' name='it' filepath='mm/cma.c' line='618' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='mm/cma.c' line='618' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cma_get_name' mangled-name='cma_get_name' filepath='mm/cma.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_get_name'>
+        <parameter type-id='4605de5b' name='cma' filepath='mm/cma.c' line='59' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='cma_get_size' mangled-name='cma_get_size' filepath='mm/cma.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_get_size'>
+        <parameter type-id='4605de5b' name='cma' filepath='mm/cma.c' line='53' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='cma_release' mangled-name='cma_release' filepath='include/linux/cma.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_release'>
+        <parameter type-id='6f67b38a'/>
+        <parameter type-id='b72f2447'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='compat_alloc_user_space' mangled-name='compat_alloc_user_space' filepath='kernel/compat.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_alloc_user_space'>
+        <parameter type-id='7359adad' name='len' filepath='kernel/compat.c' line='277' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='compat_only_sysfs_link_entry_to_kobj' mangled-name='compat_only_sysfs_link_entry_to_kobj' filepath='fs/sysfs/group.c' line='427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_only_sysfs_link_entry_to_kobj'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='427' column='1'/>
+        <parameter type-id='d30bdc51' name='target_kobj' filepath='fs/sysfs/group.c' line='428' column='1'/>
+        <parameter type-id='80f4b756' name='target_name' filepath='fs/sysfs/group.c' line='429' column='1'/>
+        <parameter type-id='80f4b756' name='symlink_name' filepath='fs/sysfs/group.c' line='430' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='compat_ptr_ioctl' mangled-name='compat_ptr_ioctl' filepath='fs/ioctl.c' line='784' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_ptr_ioctl'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/ioctl.c' line='784' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='fs/ioctl.c' line='784' column='1'/>
+        <parameter type-id='7359adad' name='arg' filepath='fs/ioctl.c' line='784' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='complete' mangled-name='complete' filepath='include/linux/completion.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete'>
+        <parameter type-id='389faaf7'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='complete_all' mangled-name='complete_all' filepath='kernel/sched/completion.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete_all'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='57' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='complete_and_exit' mangled-name='complete_and_exit' filepath='kernel/exit.c' line='868' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete_and_exit'>
+        <parameter type-id='389faaf7' name='comp' filepath='kernel/exit.c' line='868' column='1'/>
+        <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='868' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='completion_done' mangled-name='completion_done' filepath='kernel/sched/completion.c' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='completion_done'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='315' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='component_add' mangled-name='component_add' filepath='drivers/base/component.c' line='742' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_add'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/component.c' line='742' column='1'/>
+        <parameter type-id='14f24806' name='ops' filepath='drivers/base/component.c' line='742' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='component_bind_all' mangled-name='component_bind_all' filepath='drivers/base/component.c' line='632' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_bind_all'>
+        <parameter type-id='fa0b179b' name='master_dev' filepath='drivers/base/component.c' line='632' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/component.c' line='632' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='component_del' mangled-name='component_del' filepath='drivers/base/component.c' line='757' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_del'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/component.c' line='757' column='1'/>
+        <parameter type-id='14f24806' name='ops' filepath='drivers/base/component.c' line='757' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='component_master_add_with_match' mangled-name='component_master_add_with_match' filepath='include/linux/component.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_master_add_with_match'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='27729729'/>
+        <parameter type-id='7d9421ac'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='component_master_del' mangled-name='component_master_del' filepath='drivers/base/component.c' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_master_del'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/component.c' line='512' column='1'/>
+        <parameter type-id='27729729' name='ops' filepath='drivers/base/component.c' line='513' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='component_match_add_release' mangled-name='component_match_add_release' filepath='drivers/base/component.c' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_match_add_release'>
+        <parameter type-id='fa0b179b' name='master' filepath='drivers/base/component.c' line='400' column='1'/>
+        <parameter type-id='3630c5f2' name='matchptr' filepath='drivers/base/component.c' line='401' column='1'/>
+        <parameter type-id='680bf43c' name='release' filepath='drivers/base/component.c' line='402' column='1'/>
+        <parameter type-id='92d15ae9' name='compare' filepath='drivers/base/component.c' line='403' column='1'/>
+        <parameter type-id='eaa32e2f' name='compare_data' filepath='drivers/base/component.c' line='403' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='component_unbind_all' mangled-name='component_unbind_all' filepath='drivers/base/component.c' line='549' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_unbind_all'>
+        <parameter type-id='fa0b179b' name='master_dev' filepath='drivers/base/component.c' line='549' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/component.c' line='549' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='config_ep_by_speed' mangled-name='config_ep_by_speed' filepath='drivers/usb/gadget/composite.c' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_ep_by_speed'>
+        <parameter type-id='49a58c0c' name='g' filepath='drivers/usb/gadget/composite.c' line='279' column='1'/>
+        <parameter type-id='e5411c2c' name='f' filepath='drivers/usb/gadget/composite.c' line='280' column='1'/>
+        <parameter type-id='63a08bf7' name='_ep' filepath='drivers/usb/gadget/composite.c' line='281' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='config_group_init' mangled-name='config_group_init' filepath='include/linux/configfs.h' line='87' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_group_init'>
+        <parameter type-id='97aff453'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='config_group_init_type_name' mangled-name='config_group_init_type_name' filepath='include/linux/configfs.h' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_group_init_type_name'>
+        <parameter type-id='97aff453'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='596e8e55'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='config_item_init_type_name' mangled-name='config_item_init_type_name' filepath='fs/configfs/item.c' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_item_init_type_name'>
+        <parameter type-id='7a29ff27' name='item' filepath='fs/configfs/item.c' line='84' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/configfs/item.c' line='85' column='1'/>
+        <parameter type-id='596e8e55' name='type' filepath='fs/configfs/item.c' line='86' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='config_item_put' mangled-name='config_item_put' filepath='include/linux/configfs.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_item_put'>
+        <parameter type-id='7a29ff27'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='configfs_register_subsystem' mangled-name='configfs_register_subsystem' filepath='fs/configfs/dir.c' line='1879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='configfs_register_subsystem'>
+        <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1879' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='configfs_unregister_subsystem' mangled-name='configfs_unregister_subsystem' filepath='fs/configfs/dir.c' line='1935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='configfs_unregister_subsystem'>
+        <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1935' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='console_suspend_enabled' type-id='b50a4934' mangled-name='console_suspend_enabled' visibility='default' filepath='kernel/printk/printk.c' line='2287' column='1' elf-symbol-id='console_suspend_enabled'/>
+      <function-decl name='console_trylock' mangled-name='console_trylock' filepath='kernel/printk/printk.c' line='2378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='console_trylock'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='console_unlock' mangled-name='console_unlock' filepath='kernel/printk/printk.c' line='2440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='console_unlock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='consume_skb' mangled-name='consume_skb' filepath='include/linux/skbuff.h' line='1068' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='consume_skb'>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='contig_page_data' type-id='54406315' mangled-name='contig_page_data' visibility='default' filepath='mm/memblock.c' line='96' column='1' elf-symbol-id='contig_page_data'/>
+      <var-decl name='cpu_all_bits' type-id='afe549fd' mangled-name='cpu_all_bits' visibility='default' filepath='kernel/cpu.c' line='2755' column='1' elf-symbol-id='cpu_all_bits'/>
+      <var-decl name='cpu_bit_bitmap' type-id='f959706c' mangled-name='cpu_bit_bitmap' visibility='default' filepath='kernel/cpu.c' line='2744' column='1' elf-symbol-id='cpu_bit_bitmap'/>
+      <function-decl name='cpu_have_feature' mangled-name='cpu_have_feature' filepath='arch/arm64/include/asm/cpufeature.h' line='433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_have_feature'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <var-decl name='cpu_hwcap_keys' type-id='cee5a038' mangled-name='cpu_hwcap_keys' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='150' column='1' elf-symbol-id='cpu_hwcap_keys'/>
+      <var-decl name='cpu_hwcaps' type-id='f05e8e77' mangled-name='cpu_hwcaps' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='100' column='1' elf-symbol-id='cpu_hwcaps'/>
+      <function-decl name='cpu_latency_qos_add_request' mangled-name='cpu_latency_qos_add_request' filepath='kernel/power/qos.c' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_latency_qos_add_request'>
+        <parameter type-id='221c3010' name='req' filepath='kernel/power/qos.c' line='267' column='1'/>
+        <parameter type-id='a7832498' name='value' filepath='kernel/power/qos.c' line='267' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpu_latency_qos_remove_request' mangled-name='cpu_latency_qos_remove_request' filepath='kernel/power/qos.c' line='319' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_latency_qos_remove_request'>
+        <parameter type-id='221c3010' name='req' filepath='kernel/power/qos.c' line='319' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpu_latency_qos_update_request' mangled-name='cpu_latency_qos_update_request' filepath='kernel/power/qos.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_latency_qos_update_request'>
+        <parameter type-id='221c3010' name='req' filepath='kernel/power/qos.c' line='293' column='1'/>
+        <parameter type-id='a7832498' name='new_value' filepath='kernel/power/qos.c' line='293' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='cpu_number' type-id='95e97e5e' mangled-name='cpu_number' visibility='default' filepath='arch/arm64/kernel/smp.c' line='59' column='1' elf-symbol-id='cpu_number'/>
+      <function-decl name='cpu_pm_register_notifier' mangled-name='cpu_pm_register_notifier' filepath='kernel/cpu_pm.c' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_pm_register_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/cpu_pm.c' line='70' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpu_pm_unregister_notifier' mangled-name='cpu_pm_unregister_notifier' filepath='kernel/cpu_pm.c' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_pm_unregister_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/cpu_pm.c' line='90' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='cpu_scale' type-id='7359adad' mangled-name='cpu_scale' visibility='default' filepath='drivers/base/arch_topology.c' line='63' column='1' elf-symbol-id='cpu_scale'/>
+      <var-decl name='cpu_subsys' type-id='b31bfc8a' mangled-name='cpu_subsys' visibility='default' filepath='drivers/base/cpu.c' line='128' column='1' elf-symbol-id='cpu_subsys'/>
+      <var-decl name='cpu_topology' type-id='366d2368' mangled-name='cpu_topology' visibility='default' filepath='drivers/base/arch_topology.c' line='500' column='1' elf-symbol-id='cpu_topology'/>
+      <function-decl name='cpufreq_add_update_util_hook' mangled-name='cpufreq_add_update_util_hook' filepath='kernel/sched/cpufreq.c' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_add_update_util_hook'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/cpufreq.c' line='33' column='1'/>
+        <parameter type-id='f681f934' name='data' filepath='kernel/sched/cpufreq.c' line='33' column='1'/>
+        <parameter type-id='2cd87b91' name='func' filepath='kernel/sched/cpufreq.c' line='34' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpufreq_cpu_get' mangled-name='cpufreq_cpu_get' filepath='include/linux/cpufreq.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_cpu_get'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='343c3ae4'/>
+      </function-decl>
+      <function-decl name='cpufreq_cpu_get_raw' mangled-name='cpufreq_cpu_get_raw' filepath='drivers/cpufreq/cpufreq.c' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_cpu_get_raw'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='187' column='1'/>
+        <return type-id='343c3ae4'/>
+      </function-decl>
+      <function-decl name='cpufreq_cpu_put' mangled-name='cpufreq_cpu_put' filepath='drivers/cpufreq/cpufreq.c' line='248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_cpu_put'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='248' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpufreq_disable_fast_switch' mangled-name='cpufreq_disable_fast_switch' filepath='include/linux/cpufreq.h' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_disable_fast_switch'>
+        <parameter type-id='343c3ae4'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpufreq_driver_fast_switch' mangled-name='cpufreq_driver_fast_switch' filepath='include/linux/cpufreq.h' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_fast_switch'>
+        <parameter type-id='343c3ae4'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_driver_resolve_freq' mangled-name='cpufreq_driver_resolve_freq' filepath='include/linux/cpufreq.h' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_resolve_freq'>
+        <parameter type-id='343c3ae4'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_driver_target' mangled-name='cpufreq_driver_target' filepath='drivers/cpufreq/cpufreq.c' line='2248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_target'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='2248' column='1'/>
+        <parameter type-id='f0981eeb' name='target_freq' filepath='drivers/cpufreq/cpufreq.c' line='2249' column='1'/>
+        <parameter type-id='f0981eeb' name='relation' filepath='drivers/cpufreq/cpufreq.c' line='2250' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_enable_boost_support' mangled-name='cpufreq_enable_boost_support' filepath='drivers/cpufreq/cpufreq.c' line='2687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_enable_boost_support'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_enable_fast_switch' mangled-name='cpufreq_enable_fast_switch' filepath='include/linux/cpufreq.h' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_enable_fast_switch'>
+        <parameter type-id='343c3ae4'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='cpufreq_freq_attr_scaling_available_freqs' type-id='9f2d4ea3' mangled-name='cpufreq_freq_attr_scaling_available_freqs' visibility='default' filepath='drivers/cpufreq/freq_table.c' line='280' column='1' elf-symbol-id='cpufreq_freq_attr_scaling_available_freqs'/>
+      <var-decl name='cpufreq_freq_attr_scaling_boost_freqs' type-id='9f2d4ea3' mangled-name='cpufreq_freq_attr_scaling_boost_freqs' visibility='default' filepath='drivers/cpufreq/freq_table.c' line='292' column='1' elf-symbol-id='cpufreq_freq_attr_scaling_boost_freqs'/>
+      <function-decl name='cpufreq_freq_transition_begin' mangled-name='cpufreq_freq_transition_begin' filepath='drivers/cpufreq/cpufreq.c' line='411' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_freq_transition_begin'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='411' column='1'/>
+        <parameter type-id='857d6f7f' name='freqs' filepath='drivers/cpufreq/cpufreq.c' line='412' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpufreq_freq_transition_end' mangled-name='cpufreq_freq_transition_end' filepath='drivers/cpufreq/cpufreq.c' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_freq_transition_end'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='445' column='1'/>
+        <parameter type-id='857d6f7f' name='freqs' filepath='drivers/cpufreq/cpufreq.c' line='446' column='1'/>
+        <parameter type-id='95e97e5e' name='transition_failed' filepath='drivers/cpufreq/cpufreq.c' line='446' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpufreq_frequency_table_verify' mangled-name='cpufreq_frequency_table_verify' filepath='drivers/cpufreq/freq_table.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_frequency_table_verify'>
+        <parameter type-id='5aa4f86b' name='policy' filepath='drivers/cpufreq/freq_table.c' line='71' column='1'/>
+        <parameter type-id='3b8b42e1' name='table' filepath='drivers/cpufreq/freq_table.c' line='72' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='cpufreq_generic_attr' type-id='82486e89' mangled-name='cpufreq_generic_attr' visibility='default' filepath='drivers/cpufreq/freq_table.c' line='295' column='1' elf-symbol-id='cpufreq_generic_attr'/>
+      <function-decl name='cpufreq_generic_frequency_table_verify' mangled-name='cpufreq_generic_frequency_table_verify' filepath='drivers/cpufreq/freq_table.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_generic_frequency_table_verify'>
+        <parameter type-id='5aa4f86b' name='policy' filepath='drivers/cpufreq/freq_table.c' line='111' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_generic_get' mangled-name='cpufreq_generic_get' filepath='drivers/cpufreq/cpufreq.c' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_generic_get'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='195' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_generic_suspend' mangled-name='cpufreq_generic_suspend' filepath='drivers/cpufreq/cpufreq.c' line='1835' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_generic_suspend'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='1835' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_get' mangled-name='cpufreq_get' filepath='drivers/cpufreq/cpufreq.c' line='1806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_get'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='1806' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_get_driver_data' mangled-name='cpufreq_get_driver_data' filepath='drivers/cpufreq/cpufreq.c' line='1966' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_get_driver_data'>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='cpufreq_get_policy' mangled-name='cpufreq_get_policy' filepath='drivers/cpufreq/cpufreq.c' line='2440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_get_policy'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='2440' column='1'/>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='2440' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_policy_transition_delay_us' mangled-name='cpufreq_policy_transition_delay_us' filepath='include/linux/cpufreq.h' line='604' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_policy_transition_delay_us'>
+        <parameter type-id='343c3ae4'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_quick_get' mangled-name='cpufreq_quick_get' filepath='include/linux/cpufreq.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_quick_get'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_quick_get_max' mangled-name='cpufreq_quick_get_max' filepath='drivers/cpufreq/cpufreq.c' line='1758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_quick_get_max'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='1758' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpufreq_register_driver' mangled-name='cpufreq_register_driver' filepath='drivers/cpufreq/cpufreq.c' line='2737' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_driver'>
+        <parameter type-id='eb90c228' name='driver_data' filepath='drivers/cpufreq/cpufreq.c' line='2737' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_register_governor' mangled-name='cpufreq_register_governor' filepath='include/linux/cpufreq.h' line='605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_governor'>
+        <parameter type-id='6925355c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_register_notifier' mangled-name='cpufreq_register_notifier' filepath='include/linux/cpufreq.h' line='501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_notifier'>
+        <parameter type-id='d504f73d'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_remove_update_util_hook' mangled-name='cpufreq_remove_update_util_hook' filepath='kernel/sched/cpufreq.c' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_remove_update_util_hook'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/cpufreq.c' line='58' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpufreq_table_index_unsorted' mangled-name='cpufreq_table_index_unsorted' filepath='include/linux/cpufreq.h' line='751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_table_index_unsorted'>
+        <parameter type-id='343c3ae4'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpufreq_this_cpu_can_update' mangled-name='cpufreq_this_cpu_can_update' filepath='kernel/sched/cpufreq.c' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_this_cpu_can_update'>
+        <parameter type-id='343c3ae4' name='policy' filepath='kernel/sched/cpufreq.c' line='73' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='cpufreq_unregister_driver' mangled-name='cpufreq_unregister_driver' filepath='drivers/cpufreq/cpufreq.c' line='2840' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_unregister_driver'>
+        <parameter type-id='eb90c228' name='driver' filepath='drivers/cpufreq/cpufreq.c' line='2840' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='cpuhp_tasks_frozen' type-id='b50a4934' mangled-name='cpuhp_tasks_frozen' visibility='default' filepath='kernel/cpu.c' line='271' column='1' elf-symbol-id='cpuhp_tasks_frozen'/>
+      <function-decl name='cpuidle_governor_latency_req' mangled-name='cpuidle_governor_latency_req' filepath='drivers/cpuidle/governor.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpuidle_governor_latency_req'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpuidle/governor.c' line='111' column='1'/>
+        <return type-id='9b7c55ef'/>
+      </function-decl>
+      <function-decl name='cpuidle_pause_and_lock' mangled-name='cpuidle_pause_and_lock' filepath='drivers/cpuidle/cpuidle.c' line='447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpuidle_pause_and_lock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpuidle_resume_and_unlock' mangled-name='cpuidle_resume_and_unlock' filepath='drivers/cpuidle/cpuidle.c' line='458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpuidle_resume_and_unlock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpumask_any_but' mangled-name='cpumask_any_but' filepath='include/linux/cpumask.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_any_but'>
+        <parameter type-id='5f8a1ac4'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpumask_next' mangled-name='cpumask_next' filepath='include/linux/cpumask.h' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='5f8a1ac4'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='cpumask_next_and' mangled-name='cpumask_next_and' filepath='include/linux/cpumask.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next_and'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='5f8a1ac4'/>
+        <parameter type-id='5f8a1ac4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpumask_next_wrap' mangled-name='cpumask_next_wrap' filepath='include/linux/cpumask.h' line='280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next_wrap'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='5f8a1ac4'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpupri_find_fitness' mangled-name='cpupri_find_fitness' filepath='kernel/sched/cpupri.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpupri_find_fitness'>
+        <parameter type-id='15c7dfa4'/>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='74bccedd'/>
+        <parameter type-id='cf77d29f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='cpus_read_lock' mangled-name='cpus_read_lock' filepath='include/linux/cpu.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpus_read_lock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='cpus_read_unlock' mangled-name='cpus_read_unlock' filepath='include/linux/cpu.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpus_read_unlock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crc8' mangled-name='crc8' filepath='lib/crc8.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crc8'>
+        <parameter type-id='bbaf3419' name='table' filepath='lib/crc8.c' line='74' column='1'/>
+        <parameter type-id='8bff8096' name='pdata' filepath='lib/crc8.c' line='74' column='1'/>
+        <parameter type-id='b59d7dce' name='nbytes' filepath='lib/crc8.c' line='74' column='1'/>
+        <parameter type-id='f9b06939' name='crc' filepath='lib/crc8.c' line='74' column='1'/>
+        <return type-id='f9b06939'/>
+      </function-decl>
+      <function-decl name='crc8_populate_msb' mangled-name='crc8_populate_msb' filepath='lib/crc8.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crc8_populate_msb'>
+        <parameter type-id='8bff8096' name='table' filepath='lib/crc8.c' line='29' column='1'/>
+        <parameter type-id='f9b06939' name='polynomial' filepath='lib/crc8.c' line='29' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_aead_decrypt' mangled-name='crypto_aead_decrypt' filepath='crypto/aead.c' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_aead_decrypt'>
+        <parameter type-id='146bc842' name='req' filepath='crypto/aead.c' line='100' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_aead_encrypt' mangled-name='crypto_aead_encrypt' filepath='crypto/aead.c' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_aead_encrypt'>
+        <parameter type-id='146bc842' name='req' filepath='crypto/aead.c' line='83' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_aead_setauthsize' mangled-name='crypto_aead_setauthsize' filepath='crypto/aead.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_aead_setauthsize'>
+        <parameter type-id='a585cbc4' name='tfm' filepath='crypto/aead.c' line='64' column='1'/>
+        <parameter type-id='f0981eeb' name='authsize' filepath='crypto/aead.c' line='64' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_aead_setkey' mangled-name='crypto_aead_setkey' filepath='crypto/aead.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_aead_setkey'>
+        <parameter type-id='a585cbc4' name='tfm' filepath='crypto/aead.c' line='43' column='1'/>
+        <parameter type-id='bbaf3419' name='key' filepath='crypto/aead.c' line='44' column='1'/>
+        <parameter type-id='f0981eeb' name='keylen' filepath='crypto/aead.c' line='44' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_ahash_finup' mangled-name='crypto_ahash_finup' filepath='include/crypto/hash.h' line='448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_ahash_finup'>
+        <parameter type-id='6f3c82ac'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_ahash_setkey' mangled-name='crypto_ahash_setkey' filepath='crypto/ahash.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_ahash_setkey'>
+        <parameter type-id='1351523a' name='tfm' filepath='crypto/ahash.c' line='172' column='1'/>
+        <parameter type-id='bbaf3419' name='key' filepath='crypto/ahash.c' line='172' column='1'/>
+        <parameter type-id='f0981eeb' name='keylen' filepath='crypto/ahash.c' line='173' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='crypto_alg_list' type-id='72f469ec' mangled-name='crypto_alg_list' visibility='default' filepath='crypto/api.c' line='25' column='1' elf-symbol-id='crypto_alg_list'/>
+      <var-decl name='crypto_alg_sem' type-id='f19fdb93' mangled-name='crypto_alg_sem' visibility='default' filepath='crypto/api.c' line='27' column='1' elf-symbol-id='crypto_alg_sem'/>
+      <function-decl name='crypto_alloc_aead' mangled-name='crypto_alloc_aead' filepath='crypto/aead.c' line='214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_aead'>
+        <parameter type-id='80f4b756' name='alg_name' filepath='crypto/aead.c' line='214' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/aead.c' line='214' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/aead.c' line='214' column='1'/>
+        <return type-id='a585cbc4'/>
+      </function-decl>
+      <function-decl name='crypto_alloc_base' mangled-name='crypto_alloc_base' filepath='include/linux/crypto.h' line='676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_base'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='dfeb7f6c'/>
+      </function-decl>
+      <function-decl name='crypto_alloc_rng' mangled-name='crypto_alloc_rng' filepath='crypto/rng.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_rng'>
+        <parameter type-id='80f4b756' name='alg_name' filepath='crypto/rng.c' line='110' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/rng.c' line='110' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/rng.c' line='110' column='1'/>
+        <return type-id='5474f420'/>
+      </function-decl>
+      <function-decl name='crypto_alloc_shash' mangled-name='crypto_alloc_shash' filepath='crypto/shash.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_shash'>
+        <parameter type-id='80f4b756' name='alg_name' filepath='crypto/shash.c' line='517' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/shash.c' line='517' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/shash.c' line='518' column='1'/>
+        <return type-id='247dd85c'/>
+      </function-decl>
+      <function-decl name='crypto_alloc_skcipher' mangled-name='crypto_alloc_skcipher' filepath='crypto/skcipher.c' line='759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_skcipher'>
+        <parameter type-id='80f4b756' name='alg_name' filepath='crypto/skcipher.c' line='759' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/skcipher.c' line='760' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/skcipher.c' line='760' column='1'/>
+        <return type-id='72bb8c36'/>
+      </function-decl>
+      <function-decl name='crypto_alloc_sync_skcipher' mangled-name='crypto_alloc_sync_skcipher' filepath='crypto/skcipher.c' line='766' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_sync_skcipher'>
+        <parameter type-id='80f4b756' name='alg_name' filepath='crypto/skcipher.c' line='767' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/skcipher.c' line='767' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/skcipher.c' line='767' column='1'/>
+        <return type-id='2e6a2f40'/>
+      </function-decl>
+      <function-decl name='crypto_attr_alg_name' mangled-name='crypto_attr_alg_name' filepath='crypto/algapi.c' line='853' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_attr_alg_name'>
+        <parameter type-id='f28646d2' name='rta' filepath='crypto/algapi.c' line='853' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='crypto_check_attr_type' mangled-name='crypto_check_attr_type' filepath='crypto/algapi.c' line='837' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_check_attr_type'>
+        <parameter type-id='c161b868' name='tb' filepath='crypto/algapi.c' line='837' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/algapi.c' line='837' column='1'/>
+        <parameter type-id='f9409001' name='mask_ret' filepath='crypto/algapi.c' line='837' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_cipher_encrypt_one' mangled-name='crypto_cipher_encrypt_one' filepath='crypto/cipher.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_cipher_encrypt_one'>
+        <parameter type-id='75f72758' name='tfm' filepath='crypto/cipher.c' line='80' column='1'/>
+        <parameter type-id='8bff8096' name='dst' filepath='crypto/cipher.c' line='81' column='1'/>
+        <parameter type-id='bbaf3419' name='src' filepath='crypto/cipher.c' line='81' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_cipher_setkey' mangled-name='crypto_cipher_setkey' filepath='crypto/cipher.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_cipher_setkey'>
+        <parameter type-id='75f72758' name='tfm' filepath='crypto/cipher.c' line='43' column='1'/>
+        <parameter type-id='bbaf3419' name='key' filepath='crypto/cipher.c' line='44' column='1'/>
+        <parameter type-id='f0981eeb' name='keylen' filepath='crypto/cipher.c' line='44' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_comp_compress' mangled-name='crypto_comp_compress' filepath='include/linux/crypto.h' line='784' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_comp_compress'>
+        <parameter type-id='a064fed8'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8bff8096'/>
+        <parameter type-id='807869d3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_comp_decompress' mangled-name='crypto_comp_decompress' filepath='include/linux/crypto.h' line='788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_comp_decompress'>
+        <parameter type-id='a064fed8'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8bff8096'/>
+        <parameter type-id='807869d3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_destroy_tfm' mangled-name='crypto_destroy_tfm' filepath='include/linux/crypto.h' line='677' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_destroy_tfm'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='dfeb7f6c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_drop_spawn' mangled-name='crypto_drop_spawn' filepath='crypto/algapi.c' line='704' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_drop_spawn'>
+        <parameter type-id='5f880e0e' name='spawn' filepath='crypto/algapi.c' line='704' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_get_default_null_skcipher' mangled-name='crypto_get_default_null_skcipher' filepath='include/crypto/null.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_get_default_null_skcipher'>
+        <return type-id='2e6a2f40'/>
+      </function-decl>
+      <function-decl name='crypto_grab_aead' mangled-name='crypto_grab_aead' filepath='crypto/aead.c' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_grab_aead'>
+        <parameter type-id='2476e63c' name='spawn' filepath='crypto/aead.c' line='205' column='1'/>
+        <parameter type-id='708ae4d0' name='inst' filepath='crypto/aead.c' line='206' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/aead.c' line='207' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/aead.c' line='207' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/aead.c' line='207' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_grab_ahash' mangled-name='crypto_grab_ahash' filepath='crypto/ahash.c' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_grab_ahash'>
+        <parameter type-id='d797bdf2' name='spawn' filepath='crypto/ahash.c' line='546' column='1'/>
+        <parameter type-id='708ae4d0' name='inst' filepath='crypto/ahash.c' line='547' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/ahash.c' line='548' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/ahash.c' line='548' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/ahash.c' line='548' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_grab_shash' mangled-name='crypto_grab_shash' filepath='crypto/shash.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_grab_shash'>
+        <parameter type-id='64015654' name='spawn' filepath='crypto/shash.c' line='508' column='1'/>
+        <parameter type-id='708ae4d0' name='inst' filepath='crypto/shash.c' line='509' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/shash.c' line='510' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/shash.c' line='510' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/shash.c' line='510' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_grab_skcipher' mangled-name='crypto_grab_skcipher' filepath='crypto/skcipher.c' line='750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_grab_skcipher'>
+        <parameter type-id='442ae2b6' name='spawn' filepath='crypto/skcipher.c' line='750' column='1'/>
+        <parameter type-id='708ae4d0' name='inst' filepath='crypto/skcipher.c' line='751' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/skcipher.c' line='752' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/skcipher.c' line='752' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/skcipher.c' line='752' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_grab_spawn' mangled-name='crypto_grab_spawn' filepath='crypto/algapi.c' line='669' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_grab_spawn'>
+        <parameter type-id='5f880e0e' name='spawn' filepath='crypto/algapi.c' line='669' column='1'/>
+        <parameter type-id='708ae4d0' name='inst' filepath='crypto/algapi.c' line='669' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/algapi.c' line='670' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/algapi.c' line='670' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/algapi.c' line='670' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_has_alg' mangled-name='crypto_has_alg' filepath='include/linux/crypto.h' line='621' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_has_alg'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_inst_setname' mangled-name='crypto_inst_setname' filepath='crypto/algapi.c' line='889' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_inst_setname'>
+        <parameter type-id='708ae4d0' name='inst' filepath='crypto/algapi.c' line='889' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/algapi.c' line='889' column='1'/>
+        <parameter type-id='67f526b5' name='alg' filepath='crypto/algapi.c' line='890' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_put_default_null_skcipher' mangled-name='crypto_put_default_null_skcipher' filepath='include/crypto/null.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_put_default_null_skcipher'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_register_aead' mangled-name='crypto_register_aead' filepath='crypto/aead.c' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_aead'>
+        <parameter type-id='e4163de3' name='alg' filepath='crypto/aead.c' line='238' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_aeads' mangled-name='crypto_register_aeads' filepath='crypto/aead.c' line='257' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_aeads'>
+        <parameter type-id='e4163de3' name='algs' filepath='crypto/aead.c' line='257' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/aead.c' line='257' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_ahash' mangled-name='crypto_register_ahash' filepath='crypto/ahash.c' line='584' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_ahash'>
+        <parameter type-id='16144ad1' name='alg' filepath='crypto/ahash.c' line='584' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_ahashes' mangled-name='crypto_register_ahashes' filepath='crypto/ahash.c' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_ahashes'>
+        <parameter type-id='16144ad1' name='algs' filepath='crypto/ahash.c' line='603' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/ahash.c' line='603' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_alg' mangled-name='crypto_register_alg' filepath='include/linux/crypto.h' line='613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_alg'>
+        <parameter type-id='67f526b5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_algs' mangled-name='crypto_register_algs' filepath='crypto/algapi.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_algs'>
+        <parameter type-id='67f526b5' name='algs' filepath='crypto/algapi.c' line='467' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/algapi.c' line='467' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_notifier' mangled-name='crypto_register_notifier' filepath='crypto/algapi.c' line='791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='crypto/algapi.c' line='791' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_rng' mangled-name='crypto_register_rng' filepath='crypto/rng.c' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_rng'>
+        <parameter type-id='090a6ee7' name='alg' filepath='crypto/rng.c' line='177' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_rngs' mangled-name='crypto_register_rngs' filepath='crypto/rng.c' line='198' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_rngs'>
+        <parameter type-id='090a6ee7' name='algs' filepath='crypto/rng.c' line='198' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/rng.c' line='198' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_scomp' mangled-name='crypto_register_scomp' filepath='crypto/scompress.c' line='257' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_scomp'>
+        <parameter type-id='6e764b1e' name='alg' filepath='crypto/scompress.c' line='257' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_shash' mangled-name='crypto_register_shash' filepath='include/crypto/internal/hash.h' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_shash'>
+        <parameter type-id='1be0f6ab'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_shashes' mangled-name='crypto_register_shashes' filepath='include/crypto/internal/hash.h' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_shashes'>
+        <parameter type-id='1be0f6ab'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_skcipher' mangled-name='crypto_register_skcipher' filepath='crypto/skcipher.c' line='816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_skcipher'>
+        <parameter type-id='613dff15' name='alg' filepath='crypto/skcipher.c' line='816' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_skciphers' mangled-name='crypto_register_skciphers' filepath='include/crypto/internal/skcipher.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_skciphers'>
+        <parameter type-id='613dff15'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_template' mangled-name='crypto_register_template' filepath='crypto/algapi.c' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_template'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/algapi.c' line='496' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_register_templates' mangled-name='crypto_register_templates' filepath='crypto/algapi.c' line='518' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_templates'>
+        <parameter type-id='f0f856cb' name='tmpls' filepath='crypto/algapi.c' line='518' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/algapi.c' line='518' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_remove_spawns' mangled-name='crypto_remove_spawns' filepath='crypto/algapi.c' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_remove_spawns'>
+        <parameter type-id='67f526b5' name='alg' filepath='crypto/algapi.c' line='139' column='1'/>
+        <parameter type-id='e84b031a' name='list' filepath='crypto/algapi.c' line='139' column='1'/>
+        <parameter type-id='67f526b5' name='nalg' filepath='crypto/algapi.c' line='140' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_req_done' mangled-name='crypto_req_done' filepath='crypto/api.c' line='592' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_req_done'>
+        <parameter type-id='af5eeab9' name='req' filepath='crypto/api.c' line='592' column='1'/>
+        <parameter type-id='95e97e5e' name='err' filepath='crypto/api.c' line='592' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_rng_reset' mangled-name='crypto_rng_reset' filepath='crypto/rng.c' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_rng_reset'>
+        <parameter type-id='5474f420' name='tfm' filepath='crypto/rng.c' line='31' column='1'/>
+        <parameter type-id='bbaf3419' name='seed' filepath='crypto/rng.c' line='31' column='1'/>
+        <parameter type-id='f0981eeb' name='slen' filepath='crypto/rng.c' line='31' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_shash_alg_has_setkey' mangled-name='crypto_shash_alg_has_setkey' filepath='crypto/shash.c' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_alg_has_setkey'>
+        <parameter type-id='1be0f6ab' name='alg' filepath='crypto/shash.c' line='36' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='crypto_shash_digest' mangled-name='crypto_shash_digest' filepath='include/crypto/hash.h' line='867' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_digest'>
+        <parameter type-id='32efad44'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8bff8096'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_shash_final' mangled-name='crypto_shash_final' filepath='crypto/shash.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_final'>
+        <parameter type-id='32efad44' name='desc' filepath='crypto/shash.c' line='163' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='crypto/shash.c' line='163' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_shash_finup' mangled-name='crypto_shash_finup' filepath='include/crypto/hash.h' line='996' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_finup'>
+        <parameter type-id='32efad44'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8bff8096'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_shash_setkey' mangled-name='crypto_shash_setkey' filepath='include/crypto/hash.h' line='849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_setkey'>
+        <parameter type-id='247dd85c'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_shash_tfm_digest' mangled-name='crypto_shash_tfm_digest' filepath='include/crypto/hash.h' line='886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_tfm_digest'>
+        <parameter type-id='247dd85c'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8bff8096'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_shash_update' mangled-name='crypto_shash_update' filepath='include/crypto/hash.h' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_update'>
+        <parameter type-id='32efad44'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_skcipher_decrypt' mangled-name='crypto_skcipher_decrypt' filepath='include/crypto/skcipher.h' line='432' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_decrypt'>
+        <parameter type-id='c249b570'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_skcipher_encrypt' mangled-name='crypto_skcipher_encrypt' filepath='include/crypto/skcipher.h' line='419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_encrypt'>
+        <parameter type-id='c249b570'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_skcipher_setkey' mangled-name='crypto_skcipher_setkey' filepath='include/crypto/skcipher.h' line='364' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_setkey'>
+        <parameter type-id='72bb8c36'/>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_spawn_tfm' mangled-name='crypto_spawn_tfm' filepath='crypto/algapi.c' line='744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_spawn_tfm'>
+        <parameter type-id='5f880e0e' name='spawn' filepath='crypto/algapi.c' line='744' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/algapi.c' line='744' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/algapi.c' line='745' column='1'/>
+        <return type-id='dfeb7f6c'/>
+      </function-decl>
+      <function-decl name='crypto_spawn_tfm2' mangled-name='crypto_spawn_tfm2' filepath='crypto/algapi.c' line='770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_spawn_tfm2'>
+        <parameter type-id='5f880e0e' name='spawn' filepath='crypto/algapi.c' line='770' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_aead' mangled-name='crypto_unregister_aead' filepath='crypto/aead.c' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_aead'>
+        <parameter type-id='e4163de3' name='alg' filepath='crypto/aead.c' line='251' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_alg' mangled-name='crypto_unregister_alg' filepath='include/linux/crypto.h' line='614' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_alg'>
+        <parameter type-id='67f526b5'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_notifier' mangled-name='crypto_unregister_notifier' filepath='crypto/algapi.c' line='797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='crypto/algapi.c' line='797' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_rng' mangled-name='crypto_unregister_rng' filepath='crypto/rng.c' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_rng'>
+        <parameter type-id='090a6ee7' name='alg' filepath='crypto/rng.c' line='192' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_rngs' mangled-name='crypto_unregister_rngs' filepath='crypto/rng.c' line='218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_rngs'>
+        <parameter type-id='090a6ee7' name='algs' filepath='crypto/rng.c' line='218' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/rng.c' line='218' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_scomp' mangled-name='crypto_unregister_scomp' filepath='crypto/scompress.c' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_scomp'>
+        <parameter type-id='6e764b1e' name='alg' filepath='crypto/scompress.c' line='269' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_shash' mangled-name='crypto_unregister_shash' filepath='crypto/shash.c' line='568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_shash'>
+        <parameter type-id='1be0f6ab' name='alg' filepath='crypto/shash.c' line='568' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_shashes' mangled-name='crypto_unregister_shashes' filepath='include/crypto/internal/hash.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_shashes'>
+        <parameter type-id='1be0f6ab'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_skciphers' mangled-name='crypto_unregister_skciphers' filepath='include/crypto/internal/skcipher.h' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_skciphers'>
+        <parameter type-id='613dff15'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_template' mangled-name='crypto_unregister_template' filepath='crypto/algapi.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_template'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/algapi.c' line='536' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='crypto_unregister_templates' mangled-name='crypto_unregister_templates' filepath='crypto/algapi.c' line='565' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_templates'>
+        <parameter type-id='f0f856cb' name='tmpls' filepath='crypto/algapi.c' line='565' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/algapi.c' line='565' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='csum_ipv6_magic' mangled-name='csum_ipv6_magic' filepath='arch/arm64/lib/csum.c' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='csum_ipv6_magic'>
+        <parameter type-id='fea9c20b' name='saddr' filepath='arch/arm64/lib/csum.c' line='132' column='1'/>
+        <parameter type-id='fea9c20b' name='daddr' filepath='arch/arm64/lib/csum.c' line='133' column='1'/>
+        <parameter type-id='3f1a6b60' name='len' filepath='arch/arm64/lib/csum.c' line='134' column='1'/>
+        <parameter type-id='8f048e17' name='proto' filepath='arch/arm64/lib/csum.c' line='134' column='1'/>
+        <parameter type-id='fbd88bba' name='csum' filepath='arch/arm64/lib/csum.c' line='134' column='1'/>
+        <return type-id='7dac1e36'/>
+      </function-decl>
+      <function-decl name='csum_partial' mangled-name='csum_partial' filepath='include/asm-generic/checksum.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='csum_partial'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='fbd88bba'/>
+        <return type-id='fbd88bba'/>
+      </function-decl>
+      <function-decl name='csum_tcpudp_nofold' mangled-name='csum_tcpudp_nofold' filepath='lib/checksum.c' line='158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='csum_tcpudp_nofold'>
+        <parameter type-id='78a133c2' name='saddr' filepath='lib/checksum.c' line='158' column='1'/>
+        <parameter type-id='78a133c2' name='daddr' filepath='lib/checksum.c' line='158' column='1'/>
+        <parameter type-id='3f1a6b60' name='len' filepath='lib/checksum.c' line='159' column='1'/>
+        <parameter type-id='8f048e17' name='proto' filepath='lib/checksum.c' line='159' column='1'/>
+        <parameter type-id='fbd88bba' name='sum' filepath='lib/checksum.c' line='159' column='1'/>
+        <return type-id='fbd88bba'/>
+      </function-decl>
+      <function-decl name='current_time' mangled-name='current_time' filepath='include/linux/fs.h' line='1611' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='current_time'>
+        <parameter type-id='7e666abe'/>
+        <return type-id='40a816ad'/>
+      </function-decl>
+      <function-decl name='current_work' mangled-name='current_work' filepath='kernel/workqueue.c' line='4526' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='current_work'>
+        <return type-id='83c1bde6'/>
+      </function-decl>
+      <function-decl name='d_add' mangled-name='d_add' filepath='fs/dcache.c' line='2695' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_add'>
+        <parameter type-id='27675065' name='entry' filepath='fs/dcache.c' line='2695' column='1'/>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/dcache.c' line='2695' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='d_alloc_name' mangled-name='d_alloc_name' filepath='fs/dcache.c' line='1844' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_alloc_name'>
+        <parameter type-id='27675065' name='parent' filepath='fs/dcache.c' line='1844' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/dcache.c' line='1844' column='1'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='d_delete' mangled-name='d_delete' filepath='include/linux/dcache.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_delete'>
+        <parameter type-id='27675065'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='d_make_root' mangled-name='d_make_root' filepath='include/linux/dcache.h' line='263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_make_root'>
+        <parameter type-id='7e666abe'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='datagram_poll' mangled-name='datagram_poll' filepath='net/core/datagram.c' line='797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='datagram_poll'>
+        <parameter type-id='77e79a4b' name='file' filepath='net/core/datagram.c' line='797' column='1'/>
+        <parameter type-id='13103032' name='sock' filepath='net/core/datagram.c' line='797' column='1'/>
+        <parameter type-id='a54c778f' name='wait' filepath='net/core/datagram.c' line='798' column='1'/>
+        <return type-id='8f254b08'/>
+      </function-decl>
+      <function-decl name='debugfs_attr_read' mangled-name='debugfs_attr_read' filepath='fs/debugfs/file.c' line='366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_attr_read'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/debugfs/file.c' line='366' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/debugfs/file.c' line='366' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='fs/debugfs/file.c' line='367' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/debugfs/file.c' line='367' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='debugfs_attr_write' mangled-name='debugfs_attr_write' filepath='fs/debugfs/file.c' line='381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_attr_write'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/debugfs/file.c' line='381' column='1'/>
+        <parameter type-id='80f4b756' name='buf' filepath='fs/debugfs/file.c' line='381' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='fs/debugfs/file.c' line='382' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/debugfs/file.c' line='382' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_atomic_t' mangled-name='debugfs_create_atomic_t' filepath='fs/debugfs/file.c' line='769' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_atomic_t'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='769' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='769' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='770' column='1'/>
+        <parameter type-id='8a47abc3' name='value' filepath='fs/debugfs/file.c' line='770' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_blob' mangled-name='debugfs_create_blob' filepath='fs/debugfs/file.c' line='917' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_blob'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='917' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='917' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='918' column='1'/>
+        <parameter type-id='3a843513' name='blob' filepath='fs/debugfs/file.c' line='919' column='1'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='debugfs_create_bool' mangled-name='debugfs_create_bool' filepath='include/linux/debugfs.h' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_bool'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='27675065'/>
+        <parameter type-id='d8e6b335'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='debugfs_create_dir' mangled-name='debugfs_create_dir' filepath='include/linux/debugfs.h' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_dir'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='27675065'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='debugfs_create_file' mangled-name='debugfs_create_file' filepath='include/linux/debugfs.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_file'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='27675065'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='61758ee5'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='debugfs_create_file_unsafe' mangled-name='debugfs_create_file_unsafe' filepath='include/linux/debugfs.h' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_file_unsafe'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='27675065'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='61758ee5'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='debugfs_create_size_t' mangled-name='debugfs_create_size_t' filepath='fs/debugfs/file.c' line='733' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_size_t'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='733' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='733' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='734' column='1'/>
+        <parameter type-id='78c01427' name='value' filepath='fs/debugfs/file.c' line='734' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_u16' mangled-name='debugfs_create_u16' filepath='fs/debugfs/file.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u16'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='478' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='478' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='478' column='1'/>
+        <parameter type-id='26d4d46f' name='value' filepath='fs/debugfs/file.c' line='479' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_u32' mangled-name='debugfs_create_u32' filepath='fs/debugfs/file.c' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u32'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='514' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='514' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='514' column='1'/>
+        <parameter type-id='f9409001' name='value' filepath='fs/debugfs/file.c' line='515' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_u64' mangled-name='debugfs_create_u64' filepath='include/linux/debugfs.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u64'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='27675065'/>
+        <parameter type-id='3df9fd28'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_u8' mangled-name='debugfs_create_u8' filepath='fs/debugfs/file.c' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u8'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='442' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='442' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='442' column='1'/>
+        <parameter type-id='8bff8096' name='value' filepath='fs/debugfs/file.c' line='443' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_x32' mangled-name='debugfs_create_x32' filepath='fs/debugfs/file.c' line='681' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_x32'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='681' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='681' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='681' column='1'/>
+        <parameter type-id='f9409001' name='value' filepath='fs/debugfs/file.c' line='682' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_create_x64' mangled-name='debugfs_create_x64' filepath='fs/debugfs/file.c' line='699' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_x64'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='699' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='699' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='699' column='1'/>
+        <parameter type-id='3df9fd28' name='value' filepath='fs/debugfs/file.c' line='700' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='debugfs_lookup' mangled-name='debugfs_lookup' filepath='include/linux/debugfs.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_lookup'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='27675065'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='debugfs_remove' mangled-name='debugfs_remove' filepath='include/linux/debugfs.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_remove'>
+        <parameter type-id='27675065'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dec_zone_page_state' mangled-name='dec_zone_page_state' filepath='include/linux/vmstat.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dec_zone_page_state'>
+        <parameter type-id='02f11ed4'/>
+        <parameter type-id='a1f2d9a1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='default_llseek' mangled-name='default_llseek' filepath='fs/read_write.c' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='default_llseek'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/read_write.c' line='236' column='1'/>
+        <parameter type-id='69bf7bee' name='offset' filepath='fs/read_write.c' line='236' column='1'/>
+        <parameter type-id='95e97e5e' name='whence' filepath='fs/read_write.c' line='236' column='1'/>
+        <return type-id='69bf7bee'/>
+      </function-decl>
+      <function-decl name='deferred_free' mangled-name='deferred_free' filepath='drivers/dma-buf/heaps/deferred-free-helper.c' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='deferred_free'>
+        <parameter type-id='f812e4e9' name='item' filepath='drivers/dma-buf/heaps/deferred-free-helper.c' line='25' column='1'/>
+        <parameter type-id='eddc89a2' name='free' filepath='drivers/dma-buf/heaps/deferred-free-helper.c' line='26' column='1'/>
+        <parameter type-id='b59d7dce' name='nr_pages' filepath='drivers/dma-buf/heaps/deferred-free-helper.c' line='28' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='del_gendisk' mangled-name='del_gendisk' filepath='block/genhd.c' line='892' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_gendisk'>
+        <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='892' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='del_random_ready_callback' mangled-name='del_random_ready_callback' filepath='include/linux/random.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_random_ready_callback'>
+        <parameter type-id='b47c553a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='del_timer' mangled-name='del_timer' filepath='include/linux/timer.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_timer'>
+        <parameter type-id='9248e67f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='del_timer_sync' mangled-name='del_timer_sync' filepath='include/linux/timer.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_timer_sync'>
+        <parameter type-id='9248e67f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='delayed_work_timer_fn' mangled-name='delayed_work_timer_fn' filepath='kernel/workqueue.c' line='1635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='delayed_work_timer_fn'>
+        <parameter type-id='9248e67f' name='t' filepath='kernel/workqueue.c' line='1635' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='desc_to_gpio' mangled-name='desc_to_gpio' filepath='drivers/gpio/gpiolib.c' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='desc_to_gpio'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='164' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='destroy_workqueue' mangled-name='destroy_workqueue' filepath='include/linux/workqueue.h' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='destroy_workqueue'>
+        <parameter type-id='242e3d19'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_alloc_name' mangled-name='dev_alloc_name' filepath='net/core/dev.c' line='1271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_alloc_name'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1271' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='net/core/dev.c' line='1271' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_close' mangled-name='dev_close' filepath='net/core/dev.c' line='1671' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_close'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1671' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_coredumpm' mangled-name='dev_coredumpm' filepath='drivers/base/devcoredump.c' line='252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_coredumpm'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devcoredump.c' line='252' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/base/devcoredump.c' line='252' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/devcoredump.c' line='253' column='1'/>
+        <parameter type-id='b59d7dce' name='datalen' filepath='drivers/base/devcoredump.c' line='253' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devcoredump.c' line='253' column='1'/>
+        <parameter type-id='e91f335d' name='read' filepath='drivers/base/devcoredump.c' line='254' column='1'/>
+        <parameter type-id='b7f9d8e6' name='free' filepath='drivers/base/devcoredump.c' line='256' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_coredumpv' mangled-name='dev_coredumpv' filepath='drivers/base/devcoredump.c' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_coredumpv'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devcoredump.c' line='185' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/devcoredump.c' line='185' column='1'/>
+        <parameter type-id='b59d7dce' name='datalen' filepath='drivers/base/devcoredump.c' line='185' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devcoredump.c' line='186' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_driver_string' mangled-name='dev_driver_string' filepath='include/linux/device.h' line='944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_driver_string'>
+        <parameter type-id='8df61054'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='dev_err_probe' mangled-name='dev_err_probe' filepath='include/linux/device.h' line='955' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_err_probe'>
+        <parameter type-id='8df61054'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_fwnode' mangled-name='dev_fwnode' filepath='include/linux/property.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_fwnode'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='4a935625'/>
+      </function-decl>
+      <function-decl name='dev_get_by_name' mangled-name='dev_get_by_name' filepath='include/linux/netdevice.h' line='2883' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_by_name'>
+        <parameter type-id='a2bff676'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
+      <function-decl name='dev_get_regmap' mangled-name='dev_get_regmap' filepath='include/linux/regmap.h' line='1047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_regmap'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='dev_get_stats' mangled-name='dev_get_stats' filepath='include/linux/netdevice.h' line='4611' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_stats'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='bd3860fe'/>
+        <return type-id='bd3860fe'/>
+      </function-decl>
+      <function-decl name='dev_mc_sync_multiple' mangled-name='dev_mc_sync_multiple' filepath='net/core/dev_addr_lists.c' line='893' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_mc_sync_multiple'>
+        <parameter type-id='68a2d05b' name='to' filepath='net/core/dev_addr_lists.c' line='893' column='1'/>
+        <parameter type-id='68a2d05b' name='from' filepath='net/core/dev_addr_lists.c' line='893' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_mc_unsync' mangled-name='dev_mc_unsync' filepath='net/core/dev_addr_lists.c' line='918' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_mc_unsync'>
+        <parameter type-id='68a2d05b' name='to' filepath='net/core/dev_addr_lists.c' line='918' column='1'/>
+        <parameter type-id='68a2d05b' name='from' filepath='net/core/dev_addr_lists.c' line='918' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_open' mangled-name='dev_open' filepath='net/core/dev.c' line='1571' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_open'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1571' column='1'/>
+        <parameter type-id='5799dc94' name='extack' filepath='net/core/dev.c' line='1571' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_clear_wake_irq' mangled-name='dev_pm_clear_wake_irq' filepath='drivers/base/power/wakeirq.c' line='87' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_clear_wake_irq'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeirq.c' line='87' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_domain_attach' mangled-name='dev_pm_domain_attach' filepath='include/linux/pm_domain.h' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_attach'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_domain_attach_by_name' mangled-name='dev_pm_domain_attach_by_name' filepath='drivers/base/power/common.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_attach_by_name'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/common.c' line='160' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/power/common.c' line='161' column='1'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='dev_pm_domain_detach' mangled-name='dev_pm_domain_detach' filepath='include/linux/pm_domain.h' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_detach'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_genpd_set_performance_state' mangled-name='dev_pm_genpd_set_performance_state' filepath='drivers/base/power/domain.c' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_genpd_set_performance_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/domain.c' line='391' column='1'/>
+        <parameter type-id='f0981eeb' name='state' filepath='drivers/base/power/domain.c' line='391' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_add' mangled-name='dev_pm_opp_add' filepath='include/linux/pm_opp.h' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_add'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_adjust_voltage' mangled-name='dev_pm_opp_adjust_voltage' filepath='drivers/opp/core.c' line='2284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_adjust_voltage'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='2284' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='drivers/opp/core.c' line='2284' column='1'/>
+        <parameter type-id='7359adad' name='u_volt' filepath='drivers/opp/core.c' line='2285' column='1'/>
+        <parameter type-id='7359adad' name='u_volt_min' filepath='drivers/opp/core.c' line='2285' column='1'/>
+        <parameter type-id='7359adad' name='u_volt_max' filepath='drivers/opp/core.c' line='2286' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_disable' mangled-name='dev_pm_opp_disable' filepath='drivers/opp/core.c' line='2375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_disable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='2375' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='drivers/opp/core.c' line='2375' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_enable' mangled-name='dev_pm_opp_enable' filepath='drivers/opp/core.c' line='2355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_enable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='2355' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='drivers/opp/core.c' line='2355' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_find_freq_ceil' mangled-name='dev_pm_opp_find_freq_ceil' filepath='drivers/opp/core.c' line='493' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_ceil'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='493' column='1'/>
+        <parameter type-id='1d2c2b85' name='freq' filepath='drivers/opp/core.c' line='494' column='1'/>
+        <return type-id='02e48bc6'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_find_freq_exact' mangled-name='dev_pm_opp_find_freq_exact' filepath='include/linux/pm_opp.h' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_exact'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='02e48bc6'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_find_freq_floor' mangled-name='dev_pm_opp_find_freq_floor' filepath='include/linux/pm_opp.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_floor'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='1d2c2b85'/>
+        <return type-id='02e48bc6'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_free_cpufreq_table' mangled-name='dev_pm_opp_free_cpufreq_table' filepath='drivers/opp/cpu.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_free_cpufreq_table'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/cpu.c' line='96' column='1'/>
+        <parameter type-id='873a2591' name='table' filepath='drivers/opp/cpu.c' line='97' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_freq' mangled-name='dev_pm_opp_get_freq' filepath='drivers/opp/core.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_freq'>
+        <parameter type-id='02e48bc6' name='opp' filepath='drivers/opp/core.c' line='119' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_level' mangled-name='dev_pm_opp_get_level' filepath='drivers/opp/core.c' line='137' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_level'>
+        <parameter type-id='02e48bc6' name='opp' filepath='drivers/opp/core.c' line='137' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_max_transition_latency' mangled-name='dev_pm_opp_get_max_transition_latency' filepath='drivers/opp/core.c' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_max_transition_latency'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='270' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_opp_count' mangled-name='dev_pm_opp_get_opp_count' filepath='include/linux/pm_opp.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_opp_count'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_opp_table' mangled-name='dev_pm_opp_get_opp_table' filepath='drivers/opp/core.c' line='1171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_opp_table'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='1171' column='1'/>
+        <return type-id='e62a60bd'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_sharing_cpus' mangled-name='dev_pm_opp_get_sharing_cpus' filepath='drivers/opp/cpu.c' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_sharing_cpus'>
+        <parameter type-id='fa0b179b' name='cpu_dev' filepath='drivers/opp/cpu.c' line='205' column='1'/>
+        <parameter type-id='74bccedd' name='cpumask' filepath='drivers/opp/cpu.c' line='205' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_suspend_opp_freq' mangled-name='dev_pm_opp_get_suspend_opp_freq' filepath='drivers/opp/core.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_suspend_opp_freq'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='284' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_get_voltage' mangled-name='dev_pm_opp_get_voltage' filepath='include/linux/pm_opp.h' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_voltage'>
+        <parameter type-id='02e48bc6'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_init_cpufreq_table' mangled-name='dev_pm_opp_init_cpufreq_table' filepath='drivers/opp/cpu.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_init_cpufreq_table'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/cpu.c' line='43' column='1'/>
+        <parameter type-id='873a2591' name='table' filepath='drivers/opp/cpu.c' line='44' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_add_table' mangled-name='dev_pm_opp_of_add_table' filepath='include/linux/pm_opp.h' line='373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_add_table'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_cpumask_add_table' mangled-name='dev_pm_opp_of_cpumask_add_table' filepath='drivers/opp/of.c' line='1058' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_cpumask_add_table'>
+        <parameter type-id='5f8a1ac4' name='cpumask' filepath='drivers/opp/of.c' line='1058' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_cpumask_remove_table' mangled-name='dev_pm_opp_of_cpumask_remove_table' filepath='drivers/opp/of.c' line='1046' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_cpumask_remove_table'>
+        <parameter type-id='5f8a1ac4' name='cpumask' filepath='drivers/opp/of.c' line='1046' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_find_icc_paths' mangled-name='dev_pm_opp_of_find_icc_paths' filepath='include/linux/pm_opp.h' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_find_icc_paths'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='e62a60bd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_get_sharing_cpus' mangled-name='dev_pm_opp_of_get_sharing_cpus' filepath='drivers/opp/of.c' line='1115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_get_sharing_cpus'>
+        <parameter type-id='fa0b179b' name='cpu_dev' filepath='drivers/opp/of.c' line='1115' column='1'/>
+        <parameter type-id='74bccedd' name='cpumask' filepath='drivers/opp/of.c' line='1116' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_register_em' mangled-name='dev_pm_opp_of_register_em' filepath='drivers/opp/of.c' line='1292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_register_em'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/of.c' line='1292' column='1'/>
+        <parameter type-id='74bccedd' name='cpus' filepath='drivers/opp/of.c' line='1292' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_of_remove_table' mangled-name='dev_pm_opp_of_remove_table' filepath='drivers/opp/of.c' line='628' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_remove_table'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/of.c' line='628' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_put' mangled-name='dev_pm_opp_put' filepath='include/linux/pm_opp.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put'>
+        <parameter type-id='02e48bc6'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_put_clkname' mangled-name='dev_pm_opp_put_clkname' filepath='drivers/opp/core.c' line='1908' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_clkname'>
+        <parameter type-id='e62a60bd' name='opp_table' filepath='drivers/opp/core.c' line='1908' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_put_opp_table' mangled-name='dev_pm_opp_put_opp_table' filepath='include/linux/pm_opp.h' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_opp_table'>
+        <parameter type-id='e62a60bd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_put_regulators' mangled-name='dev_pm_opp_put_regulators' filepath='drivers/opp/core.c' line='1824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_regulators'>
+        <parameter type-id='e62a60bd' name='opp_table' filepath='drivers/opp/core.c' line='1824' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_remove_all_dynamic' mangled-name='dev_pm_opp_remove_all_dynamic' filepath='drivers/opp/core.c' line='1358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_remove_all_dynamic'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='1358' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_set_bw' mangled-name='dev_pm_opp_set_bw' filepath='drivers/opp/core.c' line='854' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_set_bw'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='854' column='1'/>
+        <parameter type-id='02e48bc6' name='opp' filepath='drivers/opp/core.c' line='854' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_set_clkname' mangled-name='dev_pm_opp_set_clkname' filepath='drivers/opp/core.c' line='1865' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_set_clkname'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='1865' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/opp/core.c' line='1865' column='1'/>
+        <return type-id='e62a60bd'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_set_rate' mangled-name='dev_pm_opp_set_rate' filepath='drivers/opp/core.c' line='914' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_set_rate'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='914' column='1'/>
+        <parameter type-id='7359adad' name='target_freq' filepath='drivers/opp/core.c' line='914' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_set_regulators' mangled-name='dev_pm_opp_set_regulators' filepath='drivers/opp/core.c' line='1754' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_set_regulators'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='1754' column='1'/>
+        <parameter type-id='13956559' name='names' filepath='drivers/opp/core.c' line='1755' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='drivers/opp/core.c' line='1756' column='1'/>
+        <return type-id='e62a60bd'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_set_sharing_cpus' mangled-name='dev_pm_opp_set_sharing_cpus' filepath='drivers/opp/cpu.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_set_sharing_cpus'>
+        <parameter type-id='fa0b179b' name='cpu_dev' filepath='drivers/opp/cpu.c' line='155' column='1'/>
+        <parameter type-id='5f8a1ac4' name='cpumask' filepath='drivers/opp/cpu.c' line='156' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_opp_set_supported_hw' mangled-name='dev_pm_opp_set_supported_hw' filepath='drivers/opp/core.c' line='1605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_set_supported_hw'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='1605' column='1'/>
+        <parameter type-id='aded214c' name='versions' filepath='drivers/opp/core.c' line='1606' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='drivers/opp/core.c' line='1606' column='1'/>
+        <return type-id='e62a60bd'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_add_notifier' mangled-name='dev_pm_qos_add_notifier' filepath='drivers/base/power/qos.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_add_notifier'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='536' column='1'/>
+        <parameter type-id='d504f73d' name='notifier' filepath='drivers/base/power/qos.c' line='536' column='1'/>
+        <parameter type-id='c47ba023' name='type' filepath='drivers/base/power/qos.c' line='537' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_add_request' mangled-name='dev_pm_qos_add_request' filepath='drivers/base/power/qos.c' line='389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_add_request'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='389' column='1'/>
+        <parameter type-id='a80fd1bc' name='req' filepath='drivers/base/power/qos.c' line='389' column='1'/>
+        <parameter type-id='c47ba023' name='type' filepath='drivers/base/power/qos.c' line='390' column='1'/>
+        <parameter type-id='a7832498' name='value' filepath='drivers/base/power/qos.c' line='390' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_expose_latency_tolerance' mangled-name='dev_pm_qos_expose_latency_tolerance' filepath='drivers/base/power/qos.c' line='952' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_expose_latency_tolerance'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='952' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_hide_latency_tolerance' mangled-name='dev_pm_qos_hide_latency_tolerance' filepath='drivers/base/power/qos.c' line='971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_hide_latency_tolerance'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='971' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_read_value' mangled-name='dev_pm_qos_read_value' filepath='drivers/base/power/qos.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_read_value'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='110' column='1'/>
+        <parameter type-id='c47ba023' name='type' filepath='drivers/base/power/qos.c' line='110' column='1'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_remove_notifier' mangled-name='dev_pm_qos_remove_notifier' filepath='drivers/base/power/qos.c' line='586' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_remove_notifier'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='586' column='1'/>
+        <parameter type-id='d504f73d' name='notifier' filepath='drivers/base/power/qos.c' line='587' column='1'/>
+        <parameter type-id='c47ba023' name='type' filepath='drivers/base/power/qos.c' line='588' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_remove_request' mangled-name='dev_pm_qos_remove_request' filepath='drivers/base/power/qos.c' line='511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_remove_request'>
+        <parameter type-id='a80fd1bc' name='req' filepath='drivers/base/power/qos.c' line='511' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_update_request' mangled-name='dev_pm_qos_update_request' filepath='drivers/base/power/qos.c' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_update_request'>
+        <parameter type-id='a80fd1bc' name='req' filepath='drivers/base/power/qos.c' line='464' column='1'/>
+        <parameter type-id='a7832498' name='new_value' filepath='drivers/base/power/qos.c' line='464' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_qos_update_user_latency_tolerance' mangled-name='dev_pm_qos_update_user_latency_tolerance' filepath='include/linux/pm_qos.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_update_user_latency_tolerance'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='a7832498'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_pm_set_dedicated_wake_irq' mangled-name='dev_pm_set_dedicated_wake_irq' filepath='drivers/base/power/wakeirq.c' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_set_dedicated_wake_irq'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeirq.c' line='165' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/power/wakeirq.c' line='165' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_printk' mangled-name='dev_printk' filepath='include/linux/dev_printk.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_printk'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='8df61054'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dev_printk_emit' mangled-name='dev_printk_emit' filepath='include/linux/dev_printk.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_printk_emit'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='8df61054'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_queue_xmit' mangled-name='dev_queue_xmit' filepath='net/core/dev.c' line='4204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_queue_xmit'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='4204' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_set_mtu' mangled-name='dev_set_mtu' filepath='net/core/dev.c' line='8651' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_set_mtu'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='8651' column='1'/>
+        <parameter type-id='95e97e5e' name='new_mtu' filepath='net/core/dev.c' line='8651' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_set_name' mangled-name='dev_set_name' filepath='include/linux/device.h' line='645' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_set_name'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_uc_sync_multiple' mangled-name='dev_uc_sync_multiple' filepath='net/core/dev_addr_lists.c' line='663' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_uc_sync_multiple'>
+        <parameter type-id='68a2d05b' name='to' filepath='net/core/dev_addr_lists.c' line='663' column='1'/>
+        <parameter type-id='68a2d05b' name='from' filepath='net/core/dev_addr_lists.c' line='663' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dev_uc_unsync' mangled-name='dev_uc_unsync' filepath='net/core/dev_addr_lists.c' line='688' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_uc_unsync'>
+        <parameter type-id='68a2d05b' name='to' filepath='net/core/dev_addr_lists.c' line='688' column='1'/>
+        <parameter type-id='68a2d05b' name='from' filepath='net/core/dev_addr_lists.c' line='688' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devfreq_add_device' mangled-name='devfreq_add_device' filepath='include/linux/devfreq.h' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_add_device'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='cba10b6e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='f66fa7f4'/>
+      </function-decl>
+      <function-decl name='devfreq_add_governor' mangled-name='devfreq_add_governor' filepath='drivers/devfreq/devfreq.c' line='1193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_add_governor'>
+        <parameter type-id='247297cd' name='governor' filepath='drivers/devfreq/devfreq.c' line='1193' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devfreq_cooling_unregister' mangled-name='devfreq_cooling_unregister' filepath='drivers/thermal/devfreq_cooling.c' line='557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_cooling_unregister'>
+        <parameter type-id='2feec21f' name='cdev' filepath='drivers/thermal/devfreq_cooling.c' line='557' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devfreq_monitor_resume' mangled-name='devfreq_monitor_resume' filepath='drivers/devfreq/devfreq.c' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_monitor_resume'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='535' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devfreq_monitor_start' mangled-name='devfreq_monitor_start' filepath='drivers/devfreq/devfreq.c' line='457' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_monitor_start'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='457' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devfreq_monitor_stop' mangled-name='devfreq_monitor_stop' filepath='drivers/devfreq/devfreq.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_monitor_stop'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='487' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devfreq_monitor_suspend' mangled-name='devfreq_monitor_suspend' filepath='drivers/devfreq/devfreq.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_monitor_suspend'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='508' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devfreq_recommended_opp' mangled-name='devfreq_recommended_opp' filepath='drivers/devfreq/devfreq.c' line='1899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_recommended_opp'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/devfreq/devfreq.c' line='1899' column='1'/>
+        <parameter type-id='1d2c2b85' name='freq' filepath='drivers/devfreq/devfreq.c' line='1900' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/devfreq/devfreq.c' line='1901' column='1'/>
+        <return type-id='02e48bc6'/>
+      </function-decl>
+      <function-decl name='devfreq_register_opp_notifier' mangled-name='devfreq_register_opp_notifier' filepath='drivers/devfreq/devfreq.c' line='1932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_register_opp_notifier'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/devfreq/devfreq.c' line='1932' column='1'/>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='1932' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devfreq_remove_device' mangled-name='devfreq_remove_device' filepath='include/linux/devfreq.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_remove_device'>
+        <parameter type-id='f66fa7f4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devfreq_resume_device' mangled-name='devfreq_resume_device' filepath='include/linux/devfreq.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_resume_device'>
+        <parameter type-id='f66fa7f4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devfreq_suspend_device' mangled-name='devfreq_suspend_device' filepath='include/linux/devfreq.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_suspend_device'>
+        <parameter type-id='f66fa7f4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devfreq_unregister_opp_notifier' mangled-name='devfreq_unregister_opp_notifier' filepath='drivers/devfreq/devfreq.c' line='1948' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_unregister_opp_notifier'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/devfreq/devfreq.c' line='1948' column='1'/>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='1948' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devfreq_update_interval' mangled-name='devfreq_update_interval' filepath='drivers/devfreq/devfreq.c' line='572' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_update_interval'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='572' column='1'/>
+        <parameter type-id='807869d3' name='delay' filepath='drivers/devfreq/devfreq.c' line='572' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_add' mangled-name='device_add' filepath='include/linux/device.h' line='805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_add'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_add_disk' mangled-name='device_add_disk' filepath='block/genhd.c' line='840' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_add_disk'>
+        <parameter type-id='fa0b179b' name='parent' filepath='block/genhd.c' line='840' column='1'/>
+        <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='840' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='block/genhd.c' line='841' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_add_groups' mangled-name='device_add_groups' filepath='drivers/base/core.c' line='2343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_add_groups'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2343' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/core.c' line='2343' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_attach' mangled-name='device_attach' filepath='drivers/base/dd.c' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_attach'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='962' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_bind_driver' mangled-name='device_bind_driver' filepath='drivers/base/dd.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_bind_driver'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='460' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_create' mangled-name='device_create' filepath='include/linux/device.h' line='877' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create'>
+        <parameter type-id='67aca04f'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='8504f260'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='device_create_bin_file' mangled-name='device_create_bin_file' filepath='drivers/base/core.c' line='2667' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_bin_file'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2667' column='1'/>
+        <parameter type-id='559ac6f0' name='attr' filepath='drivers/base/core.c' line='2668' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_create_file' mangled-name='device_create_file' filepath='include/linux/device.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_file'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='de63df21'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_create_with_groups' mangled-name='device_create_with_groups' filepath='include/linux/device.h' line='880' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_with_groups'>
+        <parameter type-id='67aca04f'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='8504f260'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='c97de1ac'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='device_del' mangled-name='device_del' filepath='include/linux/device.h' line='806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_del'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_destroy' mangled-name='device_destroy' filepath='include/linux/device.h' line='883' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_destroy'>
+        <parameter type-id='67aca04f'/>
+        <parameter type-id='8504f260'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_find_child' mangled-name='device_find_child' filepath='include/linux/device.h' line='811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_find_child'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='92d15ae9'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='device_for_each_child' mangled-name='device_for_each_child' filepath='include/linux/device.h' line='807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_for_each_child'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='92d15ae9'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_get_child_node_count' mangled-name='device_get_child_node_count' filepath='drivers/base/property.c' line='851' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_child_node_count'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='851' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='device_get_dma_attr' mangled-name='device_get_dma_attr' filepath='drivers/base/property.c' line='876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_dma_attr'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='876' column='1'/>
+        <return type-id='0f98306c'/>
+      </function-decl>
+      <function-decl name='device_get_mac_address' mangled-name='device_get_mac_address' filepath='drivers/base/property.c' line='990' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_mac_address'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='990' column='1'/>
+        <parameter type-id='26a90f95' name='addr' filepath='drivers/base/property.c' line='990' column='1'/>
+        <parameter type-id='95e97e5e' name='alen' filepath='drivers/base/property.c' line='990' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='device_get_match_data' mangled-name='device_get_match_data' filepath='drivers/base/property.c' line='1234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_match_data'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='1234' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='device_get_named_child_node' mangled-name='device_get_named_child_node' filepath='drivers/base/property.c' line='801' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_named_child_node'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='801' column='1'/>
+        <parameter type-id='80f4b756' name='childname' filepath='drivers/base/property.c' line='802' column='1'/>
+        <return type-id='4a935625'/>
+      </function-decl>
+      <function-decl name='device_get_next_child_node' mangled-name='device_get_next_child_node' filepath='drivers/base/property.c' line='759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_next_child_node'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='759' column='1'/>
+        <parameter type-id='4a935625' name='child' filepath='drivers/base/property.c' line='760' column='1'/>
+        <return type-id='4a935625'/>
+      </function-decl>
+      <function-decl name='device_init_wakeup' mangled-name='device_init_wakeup' filepath='include/linux/pm_wakeup.h' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_init_wakeup'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_initialize' mangled-name='device_initialize' filepath='include/linux/device.h' line='804' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_initialize'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_link_add' mangled-name='device_link_add' filepath='include/linux/device.h' line='947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_link_add'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='7acfb3fa'/>
+      </function-decl>
+      <function-decl name='device_link_del' mangled-name='device_link_del' filepath='drivers/base/core.c' line='900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_link_del'>
+        <parameter type-id='7acfb3fa' name='link' filepath='drivers/base/core.c' line='900' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_match_fwnode' mangled-name='device_match_fwnode' filepath='drivers/base/core.c' line='4656' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_match_fwnode'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='4656' column='1'/>
+        <parameter type-id='eaa32e2f' name='fwnode' filepath='drivers/base/core.c' line='4656' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_match_name' mangled-name='device_match_name' filepath='drivers/base/core.c' line='4644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_match_name'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='4644' column='1'/>
+        <parameter type-id='eaa32e2f' name='name' filepath='drivers/base/core.c' line='4644' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_property_present' mangled-name='device_property_present' filepath='include/linux/property.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_present'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='device_property_read_string' mangled-name='device_property_read_string' filepath='drivers/base/property.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_string'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='200' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='200' column='1'/>
+        <parameter type-id='7d3cd834' name='val' filepath='drivers/base/property.c' line='201' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_property_read_string_array' mangled-name='device_property_read_string_array' filepath='drivers/base/property.c' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_string_array'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='178' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='178' column='1'/>
+        <parameter type-id='7d3cd834' name='val' filepath='drivers/base/property.c' line='179' column='1'/>
+        <parameter type-id='b59d7dce' name='nval' filepath='drivers/base/property.c' line='179' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_property_read_u16_array' mangled-name='device_property_read_u16_array' filepath='drivers/base/property.c' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_u16_array'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='103' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='103' column='1'/>
+        <parameter type-id='26d4d46f' name='val' filepath='drivers/base/property.c' line='104' column='1'/>
+        <parameter type-id='b59d7dce' name='nval' filepath='drivers/base/property.c' line='104' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_property_read_u32_array' mangled-name='device_property_read_u32_array' filepath='include/linux/property.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_u32_array'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f9409001'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_register' mangled-name='device_register' filepath='drivers/base/core.c' line='3324' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3324' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_release_driver' mangled-name='device_release_driver' filepath='drivers/base/dd.c' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_release_driver'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='1212' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_remove_bin_file' mangled-name='device_remove_bin_file' filepath='drivers/base/core.c' line='2682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_bin_file'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2682' column='1'/>
+        <parameter type-id='559ac6f0' name='attr' filepath='drivers/base/core.c' line='2683' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_remove_file' mangled-name='device_remove_file' filepath='include/linux/device.h' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='de63df21'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_remove_file_self' mangled-name='device_remove_file_self' filepath='include/linux/device.h' line='158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file_self'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='de63df21'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='device_remove_groups' mangled-name='device_remove_groups' filepath='drivers/base/core.c' line='2349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_groups'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2349' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/core.c' line='2350' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_set_wakeup_capable' mangled-name='device_set_wakeup_capable' filepath='include/linux/pm_wakeup.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_capable'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_set_wakeup_enable' mangled-name='device_set_wakeup_enable' filepath='include/linux/pm_wakeup.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_enable'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_unregister' mangled-name='device_unregister' filepath='include/linux/device.h' line='803' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_unregister'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='device_wakeup_disable' mangled-name='device_wakeup_disable' filepath='include/linux/pm_wakeup.h' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_wakeup_disable'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='device_wakeup_enable' mangled-name='device_wakeup_enable' filepath='drivers/base/power/wakeup.c' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_wakeup_enable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='340' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_add_action' mangled-name='devm_add_action' filepath='include/linux/device.h' line='254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_add_action'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b7f9d8e6'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_backlight_device_register' mangled-name='devm_backlight_device_register' filepath='drivers/video/backlight/backlight.c' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_backlight_device_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/video/backlight/backlight.c' line='602' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/video/backlight/backlight.c' line='603' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/video/backlight/backlight.c' line='603' column='1'/>
+        <parameter type-id='eaa32e2f' name='devdata' filepath='drivers/video/backlight/backlight.c' line='603' column='1'/>
+        <parameter type-id='a3d6b1c0' name='ops' filepath='drivers/video/backlight/backlight.c' line='604' column='1'/>
+        <parameter type-id='f46152e7' name='props' filepath='drivers/video/backlight/backlight.c' line='605' column='1'/>
+        <return type-id='7a76d041'/>
+      </function-decl>
+      <function-decl name='devm_backlight_device_unregister' mangled-name='devm_backlight_device_unregister' filepath='drivers/video/backlight/backlight.c' line='636' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_backlight_device_unregister'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/video/backlight/backlight.c' line='636' column='1'/>
+        <parameter type-id='7a76d041' name='bd' filepath='drivers/video/backlight/backlight.c' line='637' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_blk_ksm_init' mangled-name='devm_blk_ksm_init' filepath='block/keyslot-manager.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_blk_ksm_init'>
+        <parameter type-id='fa0b179b' name='dev' filepath='block/keyslot-manager.c' line='152' column='1'/>
+        <parameter type-id='bf8a20d2' name='ksm' filepath='block/keyslot-manager.c' line='152' column='1'/>
+        <parameter type-id='f0981eeb' name='num_slots' filepath='block/keyslot-manager.c' line='153' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_clk_bulk_get' mangled-name='devm_clk_bulk_get' filepath='include/linux/clk.h' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='2942e355'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_clk_bulk_get_all' mangled-name='devm_clk_bulk_get_all' filepath='drivers/clk/clk-devres.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get_all'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='102' column='1'/>
+        <parameter type-id='734c20ed' name='clks' filepath='drivers/clk/clk-devres.c' line='103' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_clk_bulk_get_optional' mangled-name='devm_clk_bulk_get_optional' filepath='include/linux/clk.h' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get_optional'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='2942e355'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_clk_get' mangled-name='devm_clk_get' filepath='include/linux/clk.h' line='437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='devm_clk_get_optional' mangled-name='devm_clk_get_optional' filepath='drivers/clk/clk-devres.c' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='32' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/clk/clk-devres.c' line='32' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='devm_clk_hw_register' mangled-name='devm_clk_hw_register' filepath='drivers/clk/clk.c' line='4231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_hw_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='4231' column='1'/>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='4231' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_clk_hw_register_clkdev' mangled-name='devm_clk_hw_register_clkdev' filepath='drivers/clk/clkdev.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_hw_register_clkdev'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clkdev.c' line='431' column='1'/>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clkdev.c' line='431' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/clk/clkdev.c' line='432' column='1'/>
+        <parameter type-id='80f4b756' name='dev_id' filepath='drivers/clk/clkdev.c' line='432' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_clk_put' mangled-name='devm_clk_put' filepath='drivers/clk/clk-devres.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_put'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='136' column='1'/>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk-devres.c' line='136' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_clk_register' mangled-name='devm_clk_register' filepath='drivers/clk/clk.c' line='4201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='4201' column='1'/>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk.c' line='4201' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='devm_devfreq_add_device' mangled-name='devm_devfreq_add_device' filepath='drivers/devfreq/devfreq.c' line='963' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_devfreq_add_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/devfreq/devfreq.c' line='963' column='1'/>
+        <parameter type-id='cba10b6e' name='profile' filepath='drivers/devfreq/devfreq.c' line='964' column='1'/>
+        <parameter type-id='80f4b756' name='governor_name' filepath='drivers/devfreq/devfreq.c' line='965' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/devfreq/devfreq.c' line='966' column='1'/>
+        <return type-id='f66fa7f4'/>
+      </function-decl>
+      <function-decl name='devm_device_add_group' mangled-name='devm_device_add_group' filepath='drivers/base/core.c' line='2394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_device_add_group'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2394' column='1'/>
+        <parameter type-id='8ff9530e' name='grp' filepath='drivers/base/core.c' line='2394' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_device_add_groups' mangled-name='devm_device_add_groups' filepath='drivers/base/core.c' line='2446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_device_add_groups'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2446' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/core.c' line='2447' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_device_remove_group' mangled-name='devm_device_remove_group' filepath='drivers/base/core.c' line='2424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_device_remove_group'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2424' column='1'/>
+        <parameter type-id='8ff9530e' name='grp' filepath='drivers/base/core.c' line='2425' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_drm_panel_bridge_add_typed' mangled-name='devm_drm_panel_bridge_add_typed' filepath='drivers/gpu/drm/bridge/panel.c' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_drm_panel_bridge_add_typed'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpu/drm/bridge/panel.c' line='294' column='1'/>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/bridge/panel.c' line='295' column='1'/>
+        <parameter type-id='19c2251e' name='connector_type' filepath='drivers/gpu/drm/bridge/panel.c' line='296' column='1'/>
+        <return type-id='8582e5ec'/>
+      </function-decl>
+      <function-decl name='devm_extcon_dev_allocate' mangled-name='devm_extcon_dev_allocate' filepath='drivers/extcon/devres.c' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_extcon_dev_allocate'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/extcon/devres.c' line='65' column='1'/>
+        <parameter type-id='5b2fd8e8' name='supported_cable' filepath='drivers/extcon/devres.c' line='66' column='1'/>
+        <return type-id='c0d6fada'/>
+      </function-decl>
+      <function-decl name='devm_extcon_dev_register' mangled-name='devm_extcon_dev_register' filepath='drivers/extcon/devres.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_extcon_dev_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/extcon/devres.c' line='118' column='1'/>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/devres.c' line='118' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_free_irq' mangled-name='devm_free_irq' filepath='kernel/irq/devres.c' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_free_irq'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/irq/devres.c' line='139' column='1'/>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/devres.c' line='139' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/devres.c' line='139' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_fwnode_pwm_get' mangled-name='devm_fwnode_pwm_get' filepath='drivers/pwm/core.c' line='1218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_fwnode_pwm_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pwm/core.c' line='1218' column='1'/>
+        <parameter type-id='4a935625' name='fwnode' filepath='drivers/pwm/core.c' line='1219' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/pwm/core.c' line='1220' column='1'/>
+        <return type-id='f06adae0'/>
+      </function-decl>
+      <function-decl name='devm_gen_pool_create' mangled-name='devm_gen_pool_create' filepath='lib/genalloc.c' line='823' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gen_pool_create'>
+        <parameter type-id='fa0b179b' name='dev' filepath='lib/genalloc.c' line='823' column='1'/>
+        <parameter type-id='95e97e5e' name='min_alloc_order' filepath='lib/genalloc.c' line='823' column='1'/>
+        <parameter type-id='95e97e5e' name='nid' filepath='lib/genalloc.c' line='824' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='lib/genalloc.c' line='824' column='1'/>
+        <return type-id='75b9415a'/>
+      </function-decl>
+      <function-decl name='devm_get_clk_from_child' mangled-name='devm_get_clk_from_child' filepath='drivers/clk/clk-devres.c' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_get_clk_from_child'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='146' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk-devres.c' line='147' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/clk/clk-devres.c' line='147' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='devm_gpio_free' mangled-name='devm_gpio_free' filepath='drivers/gpio/gpiolib-devres.c' line='474' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpio_free'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='474' column='1'/>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-devres.c' line='474' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_gpio_request' mangled-name='devm_gpio_request' filepath='drivers/gpio/gpiolib-devres.c' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpio_request'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='412' column='1'/>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-devres.c' line='412' column='1'/>
+        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib-devres.c' line='412' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_gpio_request_one' mangled-name='devm_gpio_request_one' filepath='drivers/gpio/gpiolib-devres.c' line='441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpio_request_one'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='441' column='1'/>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-devres.c' line='441' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/gpio/gpiolib-devres.c' line='442' column='1'/>
+        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib-devres.c' line='442' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_gpiochip_add_data_with_key' mangled-name='devm_gpiochip_add_data_with_key' filepath='drivers/gpio/gpiolib-devres.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiochip_add_data_with_key'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='506' column='1'/>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib-devres.c' line='506' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpio/gpiolib-devres.c' line='506' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/gpio/gpiolib-devres.c' line='507' column='1'/>
+        <parameter type-id='a57283f9' name='request_key' filepath='drivers/gpio/gpiolib-devres.c' line='508' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_gpiod_get' mangled-name='devm_gpiod_get' filepath='drivers/gpio/gpiolib-devres.c' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='56' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib-devres.c' line='57' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib-devres.c' line='58' column='1'/>
+        <return type-id='26760480'/>
+      </function-decl>
+      <function-decl name='devm_gpiod_get_array' mangled-name='devm_gpiod_get_array' filepath='drivers/gpio/gpiolib-devres.c' line='268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_get_array'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='268' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib-devres.c' line='269' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib-devres.c' line='270' column='1'/>
+        <return type-id='58a5c6a3'/>
+      </function-decl>
+      <function-decl name='devm_gpiod_get_index' mangled-name='devm_gpiod_get_index' filepath='drivers/gpio/gpiolib-devres.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_get_index'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='93' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib-devres.c' line='94' column='1'/>
+        <parameter type-id='f0981eeb' name='idx' filepath='drivers/gpio/gpiolib-devres.c' line='95' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib-devres.c' line='96' column='1'/>
+        <return type-id='26760480'/>
+      </function-decl>
+      <function-decl name='devm_gpiod_get_optional' mangled-name='devm_gpiod_get_optional' filepath='drivers/gpio/gpiolib-devres.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='74' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib-devres.c' line='75' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib-devres.c' line='76' column='1'/>
+        <return type-id='26760480'/>
+      </function-decl>
+      <function-decl name='devm_gpiod_put_array' mangled-name='devm_gpiod_put_array' filepath='drivers/gpio/gpiolib-devres.c' line='373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_gpiod_put_array'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib-devres.c' line='373' column='1'/>
+        <parameter type-id='58a5c6a3' name='descs' filepath='drivers/gpio/gpiolib-devres.c' line='373' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_hwspin_lock_register' mangled-name='devm_hwspin_lock_register' filepath='drivers/hwspinlock/hwspinlock_core.c' line='612' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_hwspin_lock_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/hwspinlock/hwspinlock_core.c' line='612' column='1'/>
+        <parameter type-id='b8cd8f00' name='bank' filepath='drivers/hwspinlock/hwspinlock_core.c' line='613' column='1'/>
+        <parameter type-id='9138a099' name='ops' filepath='drivers/hwspinlock/hwspinlock_core.c' line='614' column='1'/>
+        <parameter type-id='95e97e5e' name='base_id' filepath='drivers/hwspinlock/hwspinlock_core.c' line='615' column='1'/>
+        <parameter type-id='95e97e5e' name='num_locks' filepath='drivers/hwspinlock/hwspinlock_core.c' line='615' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_i2c_new_dummy_device' mangled-name='devm_i2c_new_dummy_device' filepath='drivers/i2c/i2c-core-base.c' line='1042' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_i2c_new_dummy_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/i2c/i2c-core-base.c' line='1042' column='1'/>
+        <parameter type-id='b9af02c3' name='adapter' filepath='drivers/i2c/i2c-core-base.c' line='1043' column='1'/>
+        <parameter type-id='1dc6a898' name='address' filepath='drivers/i2c/i2c-core-base.c' line='1044' column='1'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='devm_iio_device_alloc' mangled-name='devm_iio_device_alloc' filepath='drivers/iio/industrialio-core.c' line='1602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_iio_device_alloc'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/iio/industrialio-core.c' line='1602' column='1'/>
+        <parameter type-id='95e97e5e' name='sizeof_priv' filepath='drivers/iio/industrialio-core.c' line='1602' column='1'/>
+        <return type-id='226853d2'/>
+      </function-decl>
+      <function-decl name='devm_input_allocate_device' mangled-name='devm_input_allocate_device' filepath='drivers/input/input.c' line='1875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_input_allocate_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/input/input.c' line='1875' column='1'/>
+        <return type-id='74b427eb'/>
+      </function-decl>
+      <function-decl name='devm_ioremap' mangled-name='devm_ioremap' filepath='lib/devres.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_ioremap'>
+        <parameter type-id='fa0b179b' name='dev' filepath='lib/devres.c' line='64' column='1'/>
+        <parameter type-id='acc63fdf' name='offset' filepath='lib/devres.c' line='64' column='1'/>
+        <parameter type-id='acc63fdf' name='size' filepath='lib/devres.c' line='65' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_ioremap_resource' mangled-name='devm_ioremap_resource' filepath='lib/devres.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_ioremap_resource'>
+        <parameter type-id='fa0b179b' name='dev' filepath='lib/devres.c' line='175' column='1'/>
+        <parameter type-id='e153f6de' name='res' filepath='lib/devres.c' line='176' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_ioremap_wc' mangled-name='devm_ioremap_wc' filepath='lib/devres.c' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_ioremap_wc'>
+        <parameter type-id='fa0b179b' name='dev' filepath='lib/devres.c' line='94' column='1'/>
+        <parameter type-id='acc63fdf' name='offset' filepath='lib/devres.c' line='94' column='1'/>
+        <parameter type-id='acc63fdf' name='size' filepath='lib/devres.c' line='95' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_iounmap' mangled-name='devm_iounmap' filepath='lib/devres.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_iounmap'>
+        <parameter type-id='fa0b179b' name='dev' filepath='lib/devres.c' line='108' column='1'/>
+        <parameter type-id='eaa32e2f' name='addr' filepath='lib/devres.c' line='108' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_kasprintf' mangled-name='devm_kasprintf' filepath='include/linux/device.h' line='214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kasprintf'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='devm_kfree' mangled-name='devm_kfree' filepath='include/linux/device.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kfree'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_kmalloc' mangled-name='devm_kmalloc' filepath='include/linux/device.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kmalloc'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_kmemdup' mangled-name='devm_kmemdup' filepath='include/linux/device.h' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kmemdup'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_kstrdup' mangled-name='devm_kstrdup' filepath='include/linux/device.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kstrdup'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='devm_kstrdup_const' mangled-name='devm_kstrdup_const' filepath='drivers/base/devres.c' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kstrdup_const'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='984' column='1'/>
+        <parameter type-id='80f4b756' name='s' filepath='drivers/base/devres.c' line='984' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='984' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='devm_kvasprintf' mangled-name='devm_kvasprintf' filepath='drivers/base/devres.c' line='1004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kvasprintf'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='1004' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='1004' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/devres.c' line='1004' column='1'/>
+        <parameter type-id='2aee9912' name='ap' filepath='drivers/base/devres.c' line='1005' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='devm_led_classdev_register_ext' mangled-name='devm_led_classdev_register_ext' filepath='drivers/leds/led-class.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_led_classdev_register_ext'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/leds/led-class.c' line='477' column='1'/>
+        <parameter type-id='bd1c8eb6' name='led_cdev' filepath='drivers/leds/led-class.c' line='478' column='1'/>
+        <parameter type-id='eebb8ee8' name='init_data' filepath='drivers/leds/led-class.c' line='479' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_mbox_controller_register' mangled-name='devm_mbox_controller_register' filepath='drivers/mailbox/mailbox.c' line='579' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_mbox_controller_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/mailbox/mailbox.c' line='579' column='1'/>
+        <parameter type-id='fb648468' name='mbox' filepath='drivers/mailbox/mailbox.c' line='580' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_memremap' mangled-name='devm_memremap' filepath='kernel/iomem.c' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_memremap'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/iomem.c' line='139' column='1'/>
+        <parameter type-id='acc63fdf' name='offset' filepath='kernel/iomem.c' line='139' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/iomem.c' line='140' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/iomem.c' line='140' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_memunmap' mangled-name='devm_memunmap' filepath='kernel/iomem.c' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_memunmap'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/iomem.c' line='162' column='1'/>
+        <parameter type-id='eaa32e2f' name='addr' filepath='kernel/iomem.c' line='162' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_mfd_add_devices' mangled-name='devm_mfd_add_devices' filepath='include/linux/mfd/core.h' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_mfd_add_devices'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='1447e860'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='c9d64c0d'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='7544e824'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_nvmem_cell_get' mangled-name='devm_nvmem_cell_get' filepath='drivers/nvmem/core.c' line='1144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_nvmem_cell_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/nvmem/core.c' line='1144' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/nvmem/core.c' line='1144' column='1'/>
+        <return type-id='4a4ce85f'/>
+      </function-decl>
+      <function-decl name='devm_nvmem_register' mangled-name='devm_nvmem_register' filepath='include/linux/nvmem-provider.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_nvmem_register'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='7bb280fa'/>
+        <return type-id='8179bc49'/>
+      </function-decl>
+      <function-decl name='devm_of_clk_add_hw_provider' mangled-name='devm_of_clk_add_hw_provider' filepath='drivers/clk/clk.c' line='4719' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_clk_add_hw_provider'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='4719' column='1'/>
+        <parameter type-id='a5186342' name='get' filepath='drivers/clk/clk.c' line='4720' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4722' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_of_icc_get' mangled-name='devm_of_icc_get' filepath='drivers/interconnect/core.c' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_icc_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/interconnect/core.c' line='402' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/interconnect/core.c' line='402' column='1'/>
+        <return type-id='b5fdec5e'/>
+      </function-decl>
+      <function-decl name='devm_of_iomap' mangled-name='devm_of_iomap' filepath='lib/devres.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_iomap'>
+        <parameter type-id='fa0b179b' name='dev' filepath='lib/devres.c' line='227' column='1'/>
+        <parameter type-id='9a537bbe' name='node' filepath='lib/devres.c' line='227' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='lib/devres.c' line='227' column='1'/>
+        <parameter type-id='9e6a6c02' name='size' filepath='lib/devres.c' line='228' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_of_platform_populate' mangled-name='devm_of_platform_populate' filepath='include/linux/of_platform.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_platform_populate'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_phy_create' mangled-name='devm_phy_create' filepath='drivers/phy/phy-core.c' line='943' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_phy_create'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/phy/phy-core.c' line='943' column='1'/>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/phy/phy-core.c' line='943' column='1'/>
+        <parameter type-id='5424a63a' name='ops' filepath='drivers/phy/phy-core.c' line='944' column='1'/>
+        <return type-id='503ff1ba'/>
+      </function-decl>
+      <function-decl name='devm_phy_get' mangled-name='devm_phy_get' filepath='drivers/phy/phy-core.c' line='730' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_phy_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/phy/phy-core.c' line='730' column='1'/>
+        <parameter type-id='80f4b756' name='string' filepath='drivers/phy/phy-core.c' line='730' column='1'/>
+        <return type-id='503ff1ba'/>
+      </function-decl>
+      <function-decl name='devm_phy_put' mangled-name='devm_phy_put' filepath='drivers/phy/phy-core.c' line='611' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_phy_put'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/phy/phy-core.c' line='611' column='1'/>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='611' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_pinctrl_get' mangled-name='devm_pinctrl_get' filepath='drivers/pinctrl/core.c' line='1339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_pinctrl_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='1339' column='1'/>
+        <return type-id='73ea90c5'/>
+      </function-decl>
+      <function-decl name='devm_pinctrl_put' mangled-name='devm_pinctrl_put' filepath='drivers/pinctrl/core.c' line='1374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_pinctrl_put'>
+        <parameter type-id='73ea90c5' name='p' filepath='drivers/pinctrl/core.c' line='1374' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_pinctrl_register' mangled-name='devm_pinctrl_register' filepath='drivers/pinctrl/core.c' line='2227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_pinctrl_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='2227' column='1'/>
+        <parameter type-id='d4682107' name='pctldesc' filepath='drivers/pinctrl/core.c' line='2228' column='1'/>
+        <parameter type-id='eaa32e2f' name='driver_data' filepath='drivers/pinctrl/core.c' line='2229' column='1'/>
+        <return type-id='10216dc5'/>
+      </function-decl>
+      <function-decl name='devm_pinctrl_register_and_init' mangled-name='devm_pinctrl_register_and_init' filepath='drivers/pinctrl/core.c' line='2261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_pinctrl_register_and_init'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='2261' column='1'/>
+        <parameter type-id='d4682107' name='pctldesc' filepath='drivers/pinctrl/core.c' line='2262' column='1'/>
+        <parameter type-id='eaa32e2f' name='driver_data' filepath='drivers/pinctrl/core.c' line='2263' column='1'/>
+        <parameter type-id='53a00f3d' name='pctldev' filepath='drivers/pinctrl/core.c' line='2264' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_platform_ioremap_resource' mangled-name='devm_platform_ioremap_resource' filepath='include/linux/platform_device.h' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_platform_ioremap_resource'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_platform_ioremap_resource_byname' mangled-name='devm_platform_ioremap_resource_byname' filepath='include/linux/platform_device.h' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_platform_ioremap_resource_byname'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devm_power_supply_register' mangled-name='devm_power_supply_register' filepath='include/linux/power_supply.h' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_power_supply_register'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='cb9cd99f'/>
+        <parameter type-id='048b3ad6'/>
+        <return type-id='c0c93c9e'/>
+      </function-decl>
+      <function-decl name='devm_pwm_get' mangled-name='devm_pwm_get' filepath='drivers/pwm/core.c' line='1153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_pwm_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pwm/core.c' line='1153' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/pwm/core.c' line='1153' column='1'/>
+        <return type-id='f06adae0'/>
+      </function-decl>
+      <function-decl name='devm_regmap_add_irq_chip' mangled-name='devm_regmap_add_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regmap_add_irq_chip'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1'/>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_flags' filepath='drivers/base/regmap/regmap-irq.c' line='998' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/base/regmap/regmap-irq.c' line='998' column='1'/>
+        <parameter type-id='78965926' name='chip' filepath='drivers/base/regmap/regmap-irq.c' line='999' column='1'/>
+        <parameter type-id='a731d0ec' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1000' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_regmap_field_alloc' mangled-name='devm_regmap_field_alloc' filepath='drivers/base/regmap/regmap.c' line='1259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regmap_field_alloc'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap.c' line='1259' column='1'/>
+        <parameter type-id='29af9a71' name='regmap' filepath='drivers/base/regmap/regmap.c' line='1260' column='1'/>
+        <parameter type-id='d7d5e052' name='reg_field' filepath='drivers/base/regmap/regmap.c' line='1260' column='1'/>
+        <return type-id='476eb32c'/>
+      </function-decl>
+      <function-decl name='devm_regulator_bulk_get' mangled-name='devm_regulator_bulk_get' filepath='include/linux/regulator/consumer.h' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_bulk_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='776946b4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_regulator_get' mangled-name='devm_regulator_get' filepath='include/linux/regulator/consumer.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='850c13f6'/>
+      </function-decl>
+      <function-decl name='devm_regulator_get_exclusive' mangled-name='devm_regulator_get_exclusive' filepath='drivers/regulator/devres.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_get_exclusive'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/devres.c' line='66' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/regulator/devres.c' line='67' column='1'/>
+        <return type-id='850c13f6'/>
+      </function-decl>
+      <function-decl name='devm_regulator_get_optional' mangled-name='devm_regulator_get_optional' filepath='drivers/regulator/devres.c' line='82' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/devres.c' line='82' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/regulator/devres.c' line='83' column='1'/>
+        <return type-id='850c13f6'/>
+      </function-decl>
+      <function-decl name='devm_regulator_put' mangled-name='devm_regulator_put' filepath='drivers/regulator/devres.c' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_put'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/devres.c' line='107' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_regulator_register' mangled-name='devm_regulator_register' filepath='drivers/regulator/devres.c' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/devres.c' line='185' column='1'/>
+        <parameter type-id='5629bd41' name='regulator_desc' filepath='drivers/regulator/devres.c' line='186' column='1'/>
+        <parameter type-id='661ccd0c' name='config' filepath='drivers/regulator/devres.c' line='187' column='1'/>
+        <return type-id='43c38462'/>
+      </function-decl>
+      <function-decl name='devm_request_any_context_irq' mangled-name='devm_request_any_context_irq' filepath='kernel/irq/devres.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_request_any_context_irq'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/irq/devres.c' line='99' column='1'/>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/devres.c' line='99' column='1'/>
+        <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/devres.c' line='100' column='1'/>
+        <parameter type-id='7359adad' name='irqflags' filepath='kernel/irq/devres.c' line='100' column='1'/>
+        <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/devres.c' line='101' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/devres.c' line='101' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_request_threaded_irq' mangled-name='devm_request_threaded_irq' filepath='include/linux/interrupt.h' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_request_threaded_irq'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='29591c9a'/>
+        <parameter type-id='29591c9a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_reset_control_array_get' mangled-name='devm_reset_control_array_get' filepath='drivers/reset/core.c' line='926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_reset_control_array_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/reset/core.c' line='926' column='1'/>
+        <parameter type-id='b50a4934' name='shared' filepath='drivers/reset/core.c' line='926' column='1'/>
+        <parameter type-id='b50a4934' name='optional' filepath='drivers/reset/core.c' line='926' column='1'/>
+        <return type-id='9f9b8114'/>
+      </function-decl>
+      <function-decl name='devm_reset_controller_register' mangled-name='devm_reset_controller_register' filepath='drivers/reset/core.c' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_reset_controller_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/reset/core.c' line='142' column='1'/>
+        <parameter type-id='775147d9' name='rcdev' filepath='drivers/reset/core.c' line='143' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_rtc_allocate_device' mangled-name='devm_rtc_allocate_device' filepath='drivers/rtc/class.c' line='350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_rtc_allocate_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/rtc/class.c' line='350' column='1'/>
+        <return type-id='5992ae83'/>
+      </function-decl>
+      <function-decl name='devm_rtc_device_register' mangled-name='devm_rtc_device_register' filepath='drivers/rtc/class.c' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_rtc_device_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/rtc/class.c' line='445' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/rtc/class.c' line='446' column='1'/>
+        <parameter type-id='b902d9c7' name='ops' filepath='drivers/rtc/class.c' line='447' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/rtc/class.c' line='448' column='1'/>
+        <return type-id='5992ae83'/>
+      </function-decl>
+      <function-decl name='devm_snd_dmaengine_pcm_register' mangled-name='devm_snd_dmaengine_pcm_register' filepath='sound/soc/soc-devres.c' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_dmaengine_pcm_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-devres.c' line='139' column='1'/>
+        <parameter type-id='cf458aec' name='config' filepath='sound/soc/soc-devres.c' line='140' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='sound/soc/soc-devres.c' line='140' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_snd_soc_register_card' mangled-name='devm_snd_soc_register_card' filepath='include/sound/soc.h' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_card'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='3059cd0b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_snd_soc_register_component' mangled-name='devm_snd_soc_register_component' filepath='include/sound/soc.h' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_component'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='f030c2b8'/>
+        <parameter type-id='763d26a2'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_spi_register_controller' mangled-name='devm_spi_register_controller' filepath='drivers/spi/spi.c' line='2828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_spi_register_controller'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/spi/spi.c' line='2828' column='1'/>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2829' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devm_thermal_of_cooling_device_register' mangled-name='devm_thermal_of_cooling_device_register' filepath='drivers/thermal/thermal_core.c' line='1224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_thermal_of_cooling_device_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/thermal/thermal_core.c' line='1224' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/thermal/thermal_core.c' line='1225' column='1'/>
+        <parameter type-id='26a90f95' name='type' filepath='drivers/thermal/thermal_core.c' line='1226' column='1'/>
+        <parameter type-id='eaa32e2f' name='devdata' filepath='drivers/thermal/thermal_core.c' line='1226' column='1'/>
+        <parameter type-id='6f4dc085' name='ops' filepath='drivers/thermal/thermal_core.c' line='1227' column='1'/>
+        <return type-id='2feec21f'/>
+      </function-decl>
+      <function-decl name='devm_thermal_zone_of_sensor_register' mangled-name='devm_thermal_zone_of_sensor_register' filepath='drivers/thermal/thermal_of.c' line='615' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_thermal_zone_of_sensor_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/thermal/thermal_of.c' line='616' column='1'/>
+        <parameter type-id='95e97e5e' name='sensor_id' filepath='drivers/thermal/thermal_of.c' line='616' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/thermal/thermal_of.c' line='617' column='1'/>
+        <parameter type-id='83036d6c' name='ops' filepath='drivers/thermal/thermal_of.c' line='617' column='1'/>
+        <return type-id='404b1300'/>
+      </function-decl>
+      <function-decl name='devm_thermal_zone_of_sensor_unregister' mangled-name='devm_thermal_zone_of_sensor_unregister' filepath='drivers/thermal/thermal_of.c' line='652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_thermal_zone_of_sensor_unregister'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/thermal/thermal_of.c' line='652' column='1'/>
+        <parameter type-id='404b1300' name='tzd' filepath='drivers/thermal/thermal_of.c' line='653' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devm_usb_get_phy_by_phandle' mangled-name='devm_usb_get_phy_by_phandle' filepath='drivers/usb/phy/phy.c' line='556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_usb_get_phy_by_phandle'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/phy/phy.c' line='556' column='1'/>
+        <parameter type-id='80f4b756' name='phandle' filepath='drivers/usb/phy/phy.c' line='557' column='1'/>
+        <parameter type-id='f9b06939' name='index' filepath='drivers/usb/phy/phy.c' line='557' column='1'/>
+        <return type-id='ca9354d1'/>
+      </function-decl>
+      <function-decl name='devm_watchdog_register_device' mangled-name='devm_watchdog_register_device' filepath='drivers/watchdog/watchdog_core.c' line='381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_watchdog_register_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/watchdog/watchdog_core.c' line='381' column='1'/>
+        <parameter type-id='7bf5a5e5' name='wdd' filepath='drivers/watchdog/watchdog_core.c' line='382' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='devres_add' mangled-name='devres_add' filepath='include/linux/device.h' line='190' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_add'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devres_alloc_node' mangled-name='devres_alloc_node' filepath='include/linux/device.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_alloc_node'>
+        <parameter type-id='b6609e5b'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='devres_free' mangled-name='devres_free' filepath='include/linux/device.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_free'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='devres_release' mangled-name='devres_release' filepath='include/linux/device.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_release'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b6609e5b'/>
+        <parameter type-id='4a798fcf'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='disable_irq' mangled-name='disable_irq' filepath='kernel/irq/manage.c' line='622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='622' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='disable_irq_nosync' mangled-name='disable_irq_nosync' filepath='include/linux/interrupt.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_irq_nosync'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='disable_percpu_irq' mangled-name='disable_percpu_irq' filepath='include/linux/interrupt.h' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_percpu_irq'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='disk_end_io_acct' mangled-name='disk_end_io_acct' filepath='block/blk-core.c' line='1379' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disk_end_io_acct'>
+        <parameter type-id='33c599da' name='disk' filepath='block/blk-core.c' line='1379' column='1'/>
+        <parameter type-id='f0981eeb' name='op' filepath='block/blk-core.c' line='1379' column='1'/>
+        <parameter type-id='7359adad' name='start_time' filepath='block/blk-core.c' line='1380' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='disk_start_io_acct' mangled-name='disk_start_io_acct' filepath='block/blk-core.c' line='1350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disk_start_io_acct'>
+        <parameter type-id='33c599da' name='disk' filepath='block/blk-core.c' line='1350' column='1'/>
+        <parameter type-id='f0981eeb' name='sectors' filepath='block/blk-core.c' line='1350' column='1'/>
+        <parameter type-id='f0981eeb' name='op' filepath='block/blk-core.c' line='1351' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='divider_get_val' mangled-name='divider_get_val' filepath='drivers/clk/clk-divider.c' line='401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='divider_get_val'>
+        <parameter type-id='7359adad' name='rate' filepath='drivers/clk/clk-divider.c' line='401' column='1'/>
+        <parameter type-id='7359adad' name='parent_rate' filepath='drivers/clk/clk-divider.c' line='401' column='1'/>
+        <parameter type-id='caf2596f' name='table' filepath='drivers/clk/clk-divider.c' line='402' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='drivers/clk/clk-divider.c' line='402' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-divider.c' line='403' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='divider_recalc_rate' mangled-name='divider_recalc_rate' filepath='drivers/clk/clk-divider.c' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='divider_recalc_rate'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk-divider.c' line='129' column='1'/>
+        <parameter type-id='7359adad' name='parent_rate' filepath='drivers/clk/clk-divider.c' line='129' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='drivers/clk/clk-divider.c' line='130' column='1'/>
+        <parameter type-id='caf2596f' name='table' filepath='drivers/clk/clk-divider.c' line='131' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-divider.c' line='132' column='1'/>
+        <parameter type-id='7359adad' name='width' filepath='drivers/clk/clk-divider.c' line='132' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='divider_ro_round_rate_parent' mangled-name='divider_ro_round_rate_parent' filepath='drivers/clk/clk-divider.c' line='358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='divider_ro_round_rate_parent'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk-divider.c' line='358' column='1'/>
+        <parameter type-id='3aaeef89' name='parent' filepath='drivers/clk/clk-divider.c' line='358' column='1'/>
+        <parameter type-id='7359adad' name='rate' filepath='drivers/clk/clk-divider.c' line='359' column='1'/>
+        <parameter type-id='1d2c2b85' name='prate' filepath='drivers/clk/clk-divider.c' line='359' column='1'/>
+        <parameter type-id='caf2596f' name='table' filepath='drivers/clk/clk-divider.c' line='360' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='drivers/clk/clk-divider.c' line='360' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-divider.c' line='361' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='drivers/clk/clk-divider.c' line='361' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='divider_round_rate_parent' mangled-name='divider_round_rate_parent' filepath='drivers/clk/clk-divider.c' line='345' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='divider_round_rate_parent'>
+        <parameter type-id='3aaeef89' name='hw' filepath='drivers/clk/clk-divider.c' line='345' column='1'/>
+        <parameter type-id='3aaeef89' name='parent' filepath='drivers/clk/clk-divider.c' line='345' column='1'/>
+        <parameter type-id='7359adad' name='rate' filepath='drivers/clk/clk-divider.c' line='346' column='1'/>
+        <parameter type-id='1d2c2b85' name='prate' filepath='drivers/clk/clk-divider.c' line='346' column='1'/>
+        <parameter type-id='caf2596f' name='table' filepath='drivers/clk/clk-divider.c' line='347' column='1'/>
+        <parameter type-id='f9b06939' name='width' filepath='drivers/clk/clk-divider.c' line='348' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/clk/clk-divider.c' line='348' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='dma_alloc_attrs' mangled-name='dma_alloc_attrs' filepath='kernel/dma/mapping.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_alloc_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='424' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='424' column='1'/>
+        <parameter type-id='e835b5d8' name='dma_handle' filepath='kernel/dma/mapping.c' line='424' column='1'/>
+        <parameter type-id='3eb7c31c' name='flag' filepath='kernel/dma/mapping.c' line='425' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='425' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dma_alloc_noncoherent' mangled-name='dma_alloc_noncoherent' filepath='kernel/dma/mapping.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_alloc_noncoherent'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='517' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='517' column='1'/>
+        <parameter type-id='e835b5d8' name='dma_handle' filepath='kernel/dma/mapping.c' line='518' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='518' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='kernel/dma/mapping.c' line='518' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dma_async_device_register' mangled-name='dma_async_device_register' filepath='drivers/dma/dmaengine.c' line='1140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_async_device_register'>
+        <parameter type-id='c60ba652' name='device' filepath='drivers/dma/dmaengine.c' line='1140' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_async_device_unregister' mangled-name='dma_async_device_unregister' filepath='drivers/dma/dmaengine.c' line='1311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_async_device_unregister'>
+        <parameter type-id='c60ba652' name='device' filepath='drivers/dma/dmaengine.c' line='1311' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_async_tx_descriptor_init' mangled-name='dma_async_tx_descriptor_init' filepath='drivers/dma/dmaengine.c' line='1497' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_async_tx_descriptor_init'>
+        <parameter type-id='0e3f80d9' name='tx' filepath='drivers/dma/dmaengine.c' line='1497' column='1'/>
+        <parameter type-id='27f3f5d8' name='chan' filepath='drivers/dma/dmaengine.c' line='1498' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_buf_attach' mangled-name='dma_buf_attach' filepath='drivers/dma-buf/dma-buf.c' line='816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_attach'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='816' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/dma-buf/dma-buf.c' line='817' column='1'/>
+        <return type-id='e68e04c1'/>
+      </function-decl>
+      <function-decl name='dma_buf_begin_cpu_access' mangled-name='dma_buf_begin_cpu_access' filepath='drivers/dma-buf/dma-buf.c' line='1134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_begin_cpu_access'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1134' column='1'/>
+        <parameter type-id='eea6b025' name='direction' filepath='drivers/dma-buf/dma-buf.c' line='1135' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_buf_begin_cpu_access_partial' mangled-name='dma_buf_begin_cpu_access_partial' filepath='drivers/dma-buf/dma-buf.c' line='1156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_begin_cpu_access_partial'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1156' column='1'/>
+        <parameter type-id='eea6b025' name='direction' filepath='drivers/dma-buf/dma-buf.c' line='1157' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/dma-buf/dma-buf.c' line='1158' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='drivers/dma-buf/dma-buf.c' line='1158' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_buf_detach' mangled-name='dma_buf_detach' filepath='include/linux/dma-buf.h' line='595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_detach'>
+        <parameter type-id='5e4f599b'/>
+        <parameter type-id='e68e04c1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_buf_end_cpu_access' mangled-name='dma_buf_end_cpu_access' filepath='drivers/dma-buf/dma-buf.c' line='1192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_end_cpu_access'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1192' column='1'/>
+        <parameter type-id='eea6b025' name='direction' filepath='drivers/dma-buf/dma-buf.c' line='1193' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_buf_end_cpu_access_partial' mangled-name='dma_buf_end_cpu_access_partial' filepath='drivers/dma-buf/dma-buf.c' line='1206' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_end_cpu_access_partial'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1206' column='1'/>
+        <parameter type-id='eea6b025' name='direction' filepath='drivers/dma-buf/dma-buf.c' line='1207' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/dma-buf/dma-buf.c' line='1208' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='drivers/dma-buf/dma-buf.c' line='1208' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_buf_export' mangled-name='dma_buf_export' filepath='include/linux/dma-buf.h' line='600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_export'>
+        <parameter type-id='aecb451e'/>
+        <return type-id='5e4f599b'/>
+      </function-decl>
+      <function-decl name='dma_buf_fd' mangled-name='dma_buf_fd' filepath='include/linux/dma-buf.h' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_fd'>
+        <parameter type-id='5e4f599b'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_buf_get' mangled-name='dma_buf_get' filepath='include/linux/dma-buf.h' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_get'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='5e4f599b'/>
+      </function-decl>
+      <function-decl name='dma_buf_map_attachment' mangled-name='dma_buf_map_attachment' filepath='include/linux/dma-buf.h' line='606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_map_attachment'>
+        <parameter type-id='e68e04c1'/>
+        <parameter type-id='eea6b025'/>
+        <return type-id='4adb0e6a'/>
+      </function-decl>
+      <function-decl name='dma_buf_mmap' mangled-name='dma_buf_mmap' filepath='include/linux/dma-buf.h' line='622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_mmap'>
+        <parameter type-id='5e4f599b'/>
+        <parameter type-id='2ae08426'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_buf_put' mangled-name='dma_buf_put' filepath='include/linux/dma-buf.h' line='604' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_put'>
+        <parameter type-id='5e4f599b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_buf_unmap_attachment' mangled-name='dma_buf_unmap_attachment' filepath='include/linux/dma-buf.h' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_unmap_attachment'>
+        <parameter type-id='e68e04c1'/>
+        <parameter type-id='4adb0e6a'/>
+        <parameter type-id='eea6b025'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_buf_vmap' mangled-name='dma_buf_vmap' filepath='include/linux/dma-buf.h' line='624' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_vmap'>
+        <parameter type-id='5e4f599b'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dma_buf_vunmap' mangled-name='dma_buf_vunmap' filepath='include/linux/dma-buf.h' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_vunmap'>
+        <parameter type-id='5e4f599b'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='dma_contiguous_default_area' type-id='6f67b38a' mangled-name='dma_contiguous_default_area' visibility='default' filepath='kernel/dma/contiguous.c' line='60' column='1' elf-symbol-id='dma_contiguous_default_area'/>
+      <function-decl name='dma_direct_alloc' mangled-name='dma_direct_alloc' filepath='include/linux/dma-direct.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_alloc'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='e835b5d8'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dma_direct_free' mangled-name='dma_direct_free' filepath='include/linux/dma-direct.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_free'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='cf29c9b3'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_fence_add_callback' mangled-name='dma_fence_add_callback' filepath='include/linux/dma-fence.h' line='380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_add_callback'>
+        <parameter type-id='28271da3'/>
+        <parameter type-id='a47516e5'/>
+        <parameter type-id='9c175524'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_fence_context_alloc' mangled-name='dma_fence_context_alloc' filepath='include/linux/dma-fence.h' line='590' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_context_alloc'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='dma_fence_default_wait' mangled-name='dma_fence_default_wait' filepath='drivers/dma-buf/dma-fence.c' line='730' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_default_wait'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='730' column='1'/>
+        <parameter type-id='b50a4934' name='intr' filepath='drivers/dma-buf/dma-fence.c' line='730' column='1'/>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='drivers/dma-buf/dma-fence.c' line='730' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='dma_fence_free' mangled-name='dma_fence_free' filepath='drivers/dma-buf/dma-fence.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_free'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='536' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_fence_get_status' mangled-name='dma_fence_get_status' filepath='drivers/dma-buf/dma-fence.c' line='654' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_get_status'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='654' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_fence_init' mangled-name='dma_fence_init' filepath='include/linux/dma-fence.h' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_init'>
+        <parameter type-id='28271da3'/>
+        <parameter type-id='13d85783'/>
+        <parameter type-id='cff2d845'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='91ce1af9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_fence_match_context' mangled-name='dma_fence_match_context' filepath='drivers/dma-buf/dma-fence-array.c' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_match_context'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence-array.c' line='192' column='1'/>
+        <parameter type-id='91ce1af9' name='context' filepath='drivers/dma-buf/dma-fence-array.c' line='192' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='dma_fence_release' mangled-name='dma_fence_release' filepath='drivers/dma-buf/dma-fence.c' line='494' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_release'>
+        <parameter type-id='aa29ecab' name='kref' filepath='drivers/dma-buf/dma-fence.c' line='494' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_fence_remove_callback' mangled-name='dma_fence_remove_callback' filepath='include/linux/dma-fence.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_remove_callback'>
+        <parameter type-id='28271da3'/>
+        <parameter type-id='a47516e5'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='dma_fence_signal' mangled-name='dma_fence_signal' filepath='include/linux/dma-fence.h' line='373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_signal'>
+        <parameter type-id='28271da3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_fence_signal_locked' mangled-name='dma_fence_signal_locked' filepath='drivers/dma-buf/dma-fence.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_signal_locked'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='407' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_fence_wait_timeout' mangled-name='dma_fence_wait_timeout' filepath='include/linux/dma-fence.h' line='554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_wait_timeout'>
+        <parameter type-id='28271da3'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='dma_free_attrs' mangled-name='dma_free_attrs' filepath='kernel/dma/mapping.c' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_free_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='450' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='450' column='1'/>
+        <parameter type-id='eaa32e2f' name='cpu_addr' filepath='kernel/dma/mapping.c' line='450' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_handle' filepath='kernel/dma/mapping.c' line='451' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='451' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_free_noncoherent' mangled-name='dma_free_noncoherent' filepath='kernel/dma/mapping.c' line='541' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_free_noncoherent'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='541' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='541' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='kernel/dma/mapping.c' line='541' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_handle' filepath='kernel/dma/mapping.c' line='542' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='542' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_get_merge_boundary' mangled-name='dma_get_merge_boundary' filepath='kernel/dma/mapping.c' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_get_merge_boundary'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='638' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='dma_get_sgtable_attrs' mangled-name='dma_get_sgtable_attrs' filepath='kernel/dma/mapping.c' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_get_sgtable_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='321' column='1'/>
+        <parameter type-id='4adb0e6a' name='sgt' filepath='kernel/dma/mapping.c' line='321' column='1'/>
+        <parameter type-id='eaa32e2f' name='cpu_addr' filepath='kernel/dma/mapping.c' line='322' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_addr' filepath='kernel/dma/mapping.c' line='322' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='322' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='323' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_get_slave_caps' mangled-name='dma_get_slave_caps' filepath='drivers/dma/dmaengine.c' line='570' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_get_slave_caps'>
+        <parameter type-id='27f3f5d8' name='chan' filepath='drivers/dma/dmaengine.c' line='570' column='1'/>
+        <parameter type-id='d9f19b23' name='caps' filepath='drivers/dma/dmaengine.c' line='570' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_get_slave_channel' mangled-name='dma_get_slave_channel' filepath='drivers/dma/dmaengine.c' line='696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_get_slave_channel'>
+        <parameter type-id='27f3f5d8' name='chan' filepath='drivers/dma/dmaengine.c' line='696' column='1'/>
+        <return type-id='27f3f5d8'/>
+      </function-decl>
+      <function-decl name='dma_heap_add' mangled-name='dma_heap_add' filepath='drivers/dma-buf/dma-heap.c' line='298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_add'>
+        <parameter type-id='dbe60995' name='exp_info' filepath='drivers/dma-buf/dma-heap.c' line='298' column='1'/>
+        <return type-id='ea1bdaf6'/>
+      </function-decl>
+      <function-decl name='dma_heap_buffer_alloc' mangled-name='dma_heap_buffer_alloc' filepath='drivers/dma-buf/dma-heap.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_buffer_alloc'>
+        <parameter type-id='ea1bdaf6' name='heap' filepath='drivers/dma-buf/dma-heap.c' line='79' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/dma-buf/dma-heap.c' line='79' column='1'/>
+        <parameter type-id='f0981eeb' name='fd_flags' filepath='drivers/dma-buf/dma-heap.c' line='80' column='1'/>
+        <parameter type-id='f0981eeb' name='heap_flags' filepath='drivers/dma-buf/dma-heap.c' line='81' column='1'/>
+        <return type-id='5e4f599b'/>
+      </function-decl>
+      <function-decl name='dma_heap_find' mangled-name='dma_heap_find' filepath='drivers/dma-buf/dma-heap.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_find'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/dma-buf/dma-heap.c' line='55' column='1'/>
+        <return type-id='ea1bdaf6'/>
+      </function-decl>
+      <function-decl name='dma_heap_get_dev' mangled-name='dma_heap_get_dev' filepath='drivers/dma-buf/dma-heap.c' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_get_dev'>
+        <parameter type-id='ea1bdaf6' name='heap' filepath='drivers/dma-buf/dma-heap.c' line='279' column='1'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='dma_heap_get_drvdata' mangled-name='dma_heap_get_drvdata' filepath='drivers/dma-buf/dma-heap.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_get_drvdata'>
+        <parameter type-id='ea1bdaf6' name='heap' filepath='drivers/dma-buf/dma-heap.c' line='239' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dma_heap_get_name' mangled-name='dma_heap_get_name' filepath='drivers/dma-buf/dma-heap.c' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_get_name'>
+        <parameter type-id='ea1bdaf6' name='heap' filepath='drivers/dma-buf/dma-heap.c' line='292' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='dma_heap_put' mangled-name='dma_heap_put' filepath='drivers/dma-buf/dma-heap.c' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_heap_put'>
+        <parameter type-id='ea1bdaf6' name='h' filepath='drivers/dma-buf/dma-heap.c' line='260' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_map_page_attrs' mangled-name='dma_map_page_attrs' filepath='kernel/dma/mapping.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_map_page_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='140' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='kernel/dma/mapping.c' line='140' column='1'/>
+        <parameter type-id='b59d7dce' name='offset' filepath='kernel/dma/mapping.c' line='141' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='141' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='141' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='142' column='1'/>
+        <return type-id='cf29c9b3'/>
+      </function-decl>
+      <function-decl name='dma_map_resource' mangled-name='dma_map_resource' filepath='kernel/dma/mapping.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_map_resource'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='217' column='1'/>
+        <parameter type-id='2522883d' name='phys_addr' filepath='kernel/dma/mapping.c' line='217' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='218' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='218' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='218' column='1'/>
+        <return type-id='cf29c9b3'/>
+      </function-decl>
+      <function-decl name='dma_map_sg_attrs' mangled-name='dma_map_sg_attrs' filepath='kernel/dma/mapping.c' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_map_sg_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='180' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='kernel/dma/mapping.c' line='180' column='1'/>
+        <parameter type-id='95e97e5e' name='nents' filepath='kernel/dma/mapping.c' line='180' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='181' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='181' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_max_mapping_size' mangled-name='dma_max_mapping_size' filepath='kernel/dma/mapping.c' line='614' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_max_mapping_size'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='614' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='dma_mmap_attrs' mangled-name='dma_mmap_attrs' filepath='kernel/dma/mapping.c' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_mmap_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='388' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='kernel/dma/mapping.c' line='388' column='1'/>
+        <parameter type-id='eaa32e2f' name='cpu_addr' filepath='kernel/dma/mapping.c' line='389' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_addr' filepath='kernel/dma/mapping.c' line='389' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='389' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='390' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_pool_alloc' mangled-name='dma_pool_alloc' filepath='mm/dmapool.c' line='314' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_pool_alloc'>
+        <parameter type-id='ab33c616' name='pool' filepath='mm/dmapool.c' line='314' column='1'/>
+        <parameter type-id='3eb7c31c' name='mem_flags' filepath='mm/dmapool.c' line='314' column='1'/>
+        <parameter type-id='e835b5d8' name='handle' filepath='mm/dmapool.c' line='315' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dma_pool_create' mangled-name='dma_pool_create' filepath='mm/dmapool.c' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_pool_create'>
+        <parameter type-id='80f4b756' name='name' filepath='mm/dmapool.c' line='130' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='mm/dmapool.c' line='130' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/dmapool.c' line='131' column='1'/>
+        <parameter type-id='b59d7dce' name='align' filepath='mm/dmapool.c' line='131' column='1'/>
+        <parameter type-id='b59d7dce' name='boundary' filepath='mm/dmapool.c' line='131' column='1'/>
+        <return type-id='ab33c616'/>
+      </function-decl>
+      <function-decl name='dma_pool_destroy' mangled-name='dma_pool_destroy' filepath='mm/dmapool.c' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_pool_destroy'>
+        <parameter type-id='ab33c616' name='pool' filepath='mm/dmapool.c' line='267' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_pool_free' mangled-name='dma_pool_free' filepath='mm/dmapool.c' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_pool_free'>
+        <parameter type-id='ab33c616' name='pool' filepath='mm/dmapool.c' line='404' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='mm/dmapool.c' line='404' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma' filepath='mm/dmapool.c' line='404' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_release_channel' mangled-name='dma_release_channel' filepath='drivers/dma/dmaengine.c' line='903' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_release_channel'>
+        <parameter type-id='27f3f5d8' name='chan' filepath='drivers/dma/dmaengine.c' line='903' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_request_chan' mangled-name='dma_request_chan' filepath='drivers/dma/dmaengine.c' line='813' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_request_chan'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/dma/dmaengine.c' line='813' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/dma/dmaengine.c' line='813' column='1'/>
+        <return type-id='27f3f5d8'/>
+      </function-decl>
+      <function-decl name='dma_resv_add_excl_fence' mangled-name='dma_resv_add_excl_fence' filepath='include/linux/dma-resv.h' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_add_excl_fence'>
+        <parameter type-id='340cea9c'/>
+        <parameter type-id='28271da3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_resv_add_shared_fence' mangled-name='dma_resv_add_shared_fence' filepath='include/linux/dma-resv.h' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_add_shared_fence'>
+        <parameter type-id='340cea9c'/>
+        <parameter type-id='28271da3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_resv_reserve_shared' mangled-name='dma_resv_reserve_shared' filepath='include/linux/dma-resv.h' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_reserve_shared'>
+        <parameter type-id='340cea9c'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_resv_test_signaled_rcu' mangled-name='dma_resv_test_signaled_rcu' filepath='include/linux/dma-resv.h' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_test_signaled_rcu'>
+        <parameter type-id='340cea9c'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='dma_resv_wait_timeout_rcu' mangled-name='dma_resv_wait_timeout_rcu' filepath='include/linux/dma-resv.h' line='288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_wait_timeout_rcu'>
+        <parameter type-id='340cea9c'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='dma_set_coherent_mask' mangled-name='dma_set_coherent_mask' filepath='kernel/dma/mapping.c' line='597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_set_coherent_mask'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='597' column='1'/>
+        <parameter type-id='91ce1af9' name='mask' filepath='kernel/dma/mapping.c' line='597' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_set_mask' mangled-name='dma_set_mask' filepath='kernel/dma/mapping.c' line='579' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_set_mask'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='579' column='1'/>
+        <parameter type-id='91ce1af9' name='mask' filepath='kernel/dma/mapping.c' line='579' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dma_sync_sg_for_cpu' mangled-name='dma_sync_sg_for_cpu' filepath='kernel/dma/mapping.c' line='282' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_sync_sg_for_cpu'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='282' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='kernel/dma/mapping.c' line='282' column='1'/>
+        <parameter type-id='95e97e5e' name='nelems' filepath='kernel/dma/mapping.c' line='283' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='283' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_sync_sg_for_device' mangled-name='dma_sync_sg_for_device' filepath='kernel/dma/mapping.c' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_sync_sg_for_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='296' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='kernel/dma/mapping.c' line='296' column='1'/>
+        <parameter type-id='95e97e5e' name='nelems' filepath='kernel/dma/mapping.c' line='297' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='297' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_sync_single_for_cpu' mangled-name='dma_sync_single_for_cpu' filepath='kernel/dma/mapping.c' line='254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_sync_single_for_cpu'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='254' column='1'/>
+        <parameter type-id='cf29c9b3' name='addr' filepath='kernel/dma/mapping.c' line='254' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='254' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='255' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_sync_single_for_device' mangled-name='dma_sync_single_for_device' filepath='kernel/dma/mapping.c' line='268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_sync_single_for_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='268' column='1'/>
+        <parameter type-id='cf29c9b3' name='addr' filepath='kernel/dma/mapping.c' line='268' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='269' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='269' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_unmap_page_attrs' mangled-name='dma_unmap_page_attrs' filepath='kernel/dma/mapping.c' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_unmap_page_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='162' column='1'/>
+        <parameter type-id='cf29c9b3' name='addr' filepath='kernel/dma/mapping.c' line='162' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='162' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='163' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='163' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_unmap_resource' mangled-name='dma_unmap_resource' filepath='kernel/dma/mapping.c' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_unmap_resource'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='242' column='1'/>
+        <parameter type-id='cf29c9b3' name='addr' filepath='kernel/dma/mapping.c' line='242' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='242' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='243' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='243' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dma_unmap_sg_attrs' mangled-name='dma_unmap_sg_attrs' filepath='kernel/dma/mapping.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_unmap_sg_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='202' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='kernel/dma/mapping.c' line='202' column='1'/>
+        <parameter type-id='95e97e5e' name='nents' filepath='kernel/dma/mapping.c' line='203' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='kernel/dma/mapping.c' line='203' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='204' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dmabuf_page_pool_alloc' mangled-name='dmabuf_page_pool_alloc' filepath='drivers/dma-buf/heaps/page_pool.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmabuf_page_pool_alloc'>
+        <parameter type-id='586a9713' name='pool' filepath='drivers/dma-buf/heaps/page_pool.c' line='80' column='1'/>
+        <return type-id='02f11ed4'/>
+      </function-decl>
+      <function-decl name='dmabuf_page_pool_create' mangled-name='dmabuf_page_pool_create' filepath='drivers/dma-buf/heaps/page_pool.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmabuf_page_pool_create'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='drivers/dma-buf/heaps/page_pool.c' line='114' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='drivers/dma-buf/heaps/page_pool.c' line='114' column='1'/>
+        <return type-id='586a9713'/>
+      </function-decl>
+      <function-decl name='dmabuf_page_pool_destroy' mangled-name='dmabuf_page_pool_destroy' filepath='drivers/dma-buf/heaps/page_pool.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmabuf_page_pool_destroy'>
+        <parameter type-id='586a9713' name='pool' filepath='drivers/dma-buf/heaps/page_pool.c' line='138' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dmabuf_page_pool_free' mangled-name='dmabuf_page_pool_free' filepath='drivers/dma-buf/heaps/page_pool.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmabuf_page_pool_free'>
+        <parameter type-id='586a9713' name='pool' filepath='drivers/dma-buf/heaps/page_pool.c' line='95' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='drivers/dma-buf/heaps/page_pool.c' line='95' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dmaengine_unmap_put' mangled-name='dmaengine_unmap_put' filepath='drivers/dma/dmaengine.c' line='1431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmaengine_unmap_put'>
+        <parameter type-id='e220a5e2' name='unmap' filepath='drivers/dma/dmaengine.c' line='1431' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dmam_alloc_attrs' mangled-name='dmam_alloc_attrs' filepath='kernel/dma/mapping.c' line='82' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmam_alloc_attrs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='82' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='82' column='1'/>
+        <parameter type-id='e835b5d8' name='dma_handle' filepath='kernel/dma/mapping.c' line='82' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='kernel/dma/mapping.c' line='83' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/mapping.c' line='83' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dmam_free_coherent' mangled-name='dmam_free_coherent' filepath='kernel/dma/mapping.c' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmam_free_coherent'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/mapping.c' line='58' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/mapping.c' line='58' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='kernel/dma/mapping.c' line='58' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_handle' filepath='kernel/dma/mapping.c' line='59' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dmam_pool_create' mangled-name='dmam_pool_create' filepath='mm/dmapool.c' line='498' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dmam_pool_create'>
+        <parameter type-id='80f4b756' name='name' filepath='mm/dmapool.c' line='498' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='mm/dmapool.c' line='498' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/dmapool.c' line='499' column='1'/>
+        <parameter type-id='b59d7dce' name='align' filepath='mm/dmapool.c' line='499' column='1'/>
+        <parameter type-id='b59d7dce' name='allocation' filepath='mm/dmapool.c' line='499' column='1'/>
+        <return type-id='ab33c616'/>
+      </function-decl>
+      <function-decl name='do_SAK' mangled-name='do_SAK' filepath='drivers/tty/tty_io.c' line='3042' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_SAK'>
+        <parameter type-id='572fbdca' name='tty' filepath='drivers/tty/tty_io.c' line='3042' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='do_exit' mangled-name='do_exit' filepath='include/linux/kernel.h' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_exit'>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='do_wait_intr_irq' mangled-name='do_wait_intr_irq' filepath='kernel/sched/wait.c' line='351' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_wait_intr_irq'>
+        <parameter type-id='03d48e96' name='wq' filepath='kernel/sched/wait.c' line='351' column='1'/>
+        <parameter type-id='ba9aa326' name='wait' filepath='kernel/sched/wait.c' line='351' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='down' mangled-name='down' filepath='kernel/locking/semaphore.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down'>
+        <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='53' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='down_interruptible' mangled-name='down_interruptible' filepath='kernel/locking/semaphore.c' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_interruptible'>
+        <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='75' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='down_read' mangled-name='down_read' filepath='include/linux/rwsem.h' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_read'>
+        <parameter type-id='9b58df93'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='down_read_trylock' mangled-name='down_read_trylock' filepath='include/linux/rwsem.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_read_trylock'>
+        <parameter type-id='9b58df93'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='down_timeout' mangled-name='down_timeout' filepath='kernel/locking/semaphore.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_timeout'>
+        <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='155' column='1'/>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/locking/semaphore.c' line='155' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='down_trylock' mangled-name='down_trylock' filepath='kernel/locking/semaphore.c' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_trylock'>
+        <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='130' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='down_write' mangled-name='down_write' filepath='include/linux/rwsem.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_write'>
+        <parameter type-id='9b58df93'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='downgrade_write' mangled-name='downgrade_write' filepath='kernel/locking/rwsem.c' line='1628' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='downgrade_write'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1628' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dput' mangled-name='dput' filepath='include/linux/dcache.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dput'>
+        <parameter type-id='27675065'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drain_workqueue' mangled-name='drain_workqueue' filepath='kernel/workqueue.c' line='2959' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drain_workqueue'>
+        <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='2959' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='driver_create_file' mangled-name='driver_create_file' filepath='include/linux/device/driver.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_create_file'>
+        <parameter type-id='00c7b870'/>
+        <parameter type-id='1a5996d5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='driver_find_device' mangled-name='driver_find_device' filepath='drivers/base/driver.c' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_find_device'>
+        <parameter type-id='00c7b870' name='drv' filepath='drivers/base/driver.c' line='76' column='1'/>
+        <parameter type-id='fa0b179b' name='start' filepath='drivers/base/driver.c' line='77' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/driver.c' line='77' column='1'/>
+        <parameter type-id='92d15ae9' name='match' filepath='drivers/base/driver.c' line='78' column='1'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='driver_register' mangled-name='driver_register' filepath='include/linux/device/driver.h' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_register'>
+        <parameter type-id='00c7b870'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='driver_remove_file' mangled-name='driver_remove_file' filepath='include/linux/device/driver.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_remove_file'>
+        <parameter type-id='00c7b870'/>
+        <parameter type-id='1a5996d5'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='driver_unregister' mangled-name='driver_unregister' filepath='include/linux/device/driver.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_unregister'>
+        <parameter type-id='00c7b870'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_add_edid_modes' mangled-name='drm_add_edid_modes' filepath='include/drm/drm_edid.h' line='491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_edid_modes'>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='c91d1bf1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_add_modes_noedid' mangled-name='drm_add_modes_noedid' filepath='include/drm/drm_edid.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_modes_noedid'>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_add_affected_connectors' mangled-name='drm_atomic_add_affected_connectors' filepath='include/drm/drm_atomic.h' line='676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_add_affected_connectors'>
+        <parameter type-id='e3dd029e'/>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_add_affected_planes' mangled-name='drm_atomic_add_affected_planes' filepath='include/drm/drm_atomic.h' line='679' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_add_affected_planes'>
+        <parameter type-id='e3dd029e'/>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_commit' mangled-name='drm_atomic_commit' filepath='include/drm/drm_atomic.h' line='683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_commit'>
+        <parameter type-id='e3dd029e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_get_connector_state' mangled-name='drm_atomic_get_connector_state' filepath='include/drm/drm_atomic.h' line='452' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_connector_state'>
+        <parameter type-id='e3dd029e'/>
+        <parameter type-id='4db02c58'/>
+        <return type-id='249ef586'/>
+      </function-decl>
+      <function-decl name='drm_atomic_get_crtc_state' mangled-name='drm_atomic_get_crtc_state' filepath='include/drm/drm_atomic.h' line='446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_crtc_state'>
+        <parameter type-id='e3dd029e'/>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='35078cb9'/>
+      </function-decl>
+      <function-decl name='drm_atomic_get_new_connector_for_encoder' mangled-name='drm_atomic_get_new_connector_for_encoder' filepath='drivers/gpu/drm/drm_atomic.c' line='912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_new_connector_for_encoder'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='912' column='1'/>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_atomic.c' line='913' column='1'/>
+        <return type-id='4db02c58'/>
+      </function-decl>
+      <function-decl name='drm_atomic_get_old_connector_for_encoder' mangled-name='drm_atomic_get_old_connector_for_encoder' filepath='drivers/gpu/drm/drm_atomic.c' line='878' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_old_connector_for_encoder'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='878' column='1'/>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_atomic.c' line='879' column='1'/>
+        <return type-id='4db02c58'/>
+      </function-decl>
+      <function-decl name='drm_atomic_get_plane_state' mangled-name='drm_atomic_get_plane_state' filepath='include/drm/drm_atomic.h' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_plane_state'>
+        <parameter type-id='e3dd029e'/>
+        <parameter type-id='a6711537'/>
+        <return type-id='d0835005'/>
+      </function-decl>
+      <function-decl name='drm_atomic_get_private_obj_state' mangled-name='drm_atomic_get_private_obj_state' filepath='include/drm/drm_atomic.h' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_private_obj_state'>
+        <parameter type-id='e3dd029e'/>
+        <parameter type-id='11c98e9a'/>
+        <return type-id='4ea020ae'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_bridge_destroy_state' mangled-name='drm_atomic_helper_bridge_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_bridge_destroy_state'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='613' column='1'/>
+        <parameter type-id='67bbaeda' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='614' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_bridge_duplicate_state' mangled-name='drm_atomic_helper_bridge_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='587' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_bridge_duplicate_state'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='587' column='1'/>
+        <return type-id='67bbaeda'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_bridge_reset' mangled-name='drm_atomic_helper_bridge_reset' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_bridge_reset'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='648' column='1'/>
+        <return type-id='67bbaeda'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_check' mangled-name='drm_atomic_helper_check' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='959' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='959' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='960' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_check_modeset' mangled-name='drm_atomic_helper_check_modeset' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check_modeset'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='605' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='606' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_check_plane_state' mangled-name='drm_atomic_helper_check_plane_state' filepath='include/drm/drm_atomic_helper.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check_plane_state'>
+        <parameter type-id='d0835005'/>
+        <parameter type-id='c9982f26'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_check_planes' mangled-name='drm_atomic_helper_check_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='882' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check_planes'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='882' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='883' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_cleanup_planes' mangled-name='drm_atomic_helper_cleanup_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2693' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_cleanup_planes'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2693' column='1'/>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2694' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit' mangled-name='drm_atomic_helper_commit' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1812' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1812' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1813' column='1'/>
+        <parameter type-id='b50a4934' name='nonblock' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1814' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_cleanup_done' mangled-name='drm_atomic_helper_commit_cleanup_done' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_cleanup_done'>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2352' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_duplicated_state' mangled-name='drm_atomic_helper_commit_duplicated_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3289' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_duplicated_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3289' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3290' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_hw_done' mangled-name='drm_atomic_helper_commit_hw_done' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_hw_done'>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2307' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_modeset_disables' mangled-name='drm_atomic_helper_commit_modeset_disables' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_modeset_disables'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1288' column='1'/>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1289' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_modeset_enables' mangled-name='drm_atomic_helper_commit_modeset_enables' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_modeset_enables'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1335' column='1'/>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1336' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_planes' mangled-name='drm_atomic_helper_commit_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_planes'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2487' column='1'/>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2488' column='1'/>
+        <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2489' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_commit_tail' mangled-name='drm_atomic_helper_commit_tail' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1574' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_commit_tail'>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1574' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_connector_destroy_state' mangled-name='drm_atomic_helper_connector_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_connector_destroy_state'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='537' column='1'/>
+        <parameter type-id='249ef586' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='538' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_connector_duplicate_state' mangled-name='drm_atomic_helper_connector_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_connector_duplicate_state'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='490' column='1'/>
+        <return type-id='249ef586'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_connector_reset' mangled-name='drm_atomic_helper_connector_reset' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_connector_reset'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='426' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_crtc_destroy_state' mangled-name='drm_atomic_helper_crtc_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_crtc_destroy_state'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='227' column='1'/>
+        <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='228' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_crtc_duplicate_state' mangled-name='drm_atomic_helper_crtc_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_crtc_duplicate_state'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='168' column='1'/>
+        <return type-id='35078cb9'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_crtc_reset' mangled-name='drm_atomic_helper_crtc_reset' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_crtc_reset'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='111' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_damage_merged' mangled-name='drm_atomic_helper_damage_merged' filepath='drivers/gpu/drm/drm_damage_helper.c' line='359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_damage_merged'>
+        <parameter type-id='ed31fbf8' name='old_state' filepath='drivers/gpu/drm/drm_damage_helper.c' line='359' column='1'/>
+        <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_damage_helper.c' line='360' column='1'/>
+        <parameter type-id='c91d6c11' name='rect' filepath='drivers/gpu/drm/drm_damage_helper.c' line='361' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_dirtyfb' mangled-name='drm_atomic_helper_dirtyfb' filepath='drivers/gpu/drm/drm_damage_helper.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_dirtyfb'>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_damage_helper.c' line='160' column='1'/>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_damage_helper.c' line='161' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='drivers/gpu/drm/drm_damage_helper.c' line='161' column='1'/>
+        <parameter type-id='f0981eeb' name='color' filepath='drivers/gpu/drm/drm_damage_helper.c' line='162' column='1'/>
+        <parameter type-id='254852de' name='clips' filepath='drivers/gpu/drm/drm_damage_helper.c' line='162' column='1'/>
+        <parameter type-id='f0981eeb' name='num_clips' filepath='drivers/gpu/drm/drm_damage_helper.c' line='163' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_disable_plane' mangled-name='drm_atomic_helper_disable_plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_disable_plane'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2944' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2945' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_duplicate_state' mangled-name='drm_atomic_helper_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_duplicate_state'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3155' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3156' column='1'/>
+        <return type-id='e3dd029e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_fake_vblank' mangled-name='drm_atomic_helper_fake_vblank' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_fake_vblank'>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2269' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_page_flip' mangled-name='drm_atomic_helper_page_flip' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_page_flip'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3409' column='1'/>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3410' column='1'/>
+        <parameter type-id='6301fad2' name='event' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3411' column='1'/>
+        <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3412' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3413' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_plane_destroy_state' mangled-name='drm_atomic_helper_plane_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='371' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_plane_destroy_state'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='371' column='1'/>
+        <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='372' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_plane_duplicate_state' mangled-name='drm_atomic_helper_plane_duplicate_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='325' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_plane_duplicate_state'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='325' column='1'/>
+        <return type-id='d0835005'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_plane_reset' mangled-name='drm_atomic_helper_plane_reset' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_plane_reset'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='283' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_prepare_planes' mangled-name='drm_atomic_helper_prepare_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_prepare_planes'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2392' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2393' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_set_config' mangled-name='drm_atomic_helper_set_config' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2992' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_set_config'>
+        <parameter type-id='8106240b' name='set' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2992' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2993' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_setup_commit' mangled-name='drm_atomic_helper_setup_commit' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2070' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_setup_commit'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2070' column='1'/>
+        <parameter type-id='b50a4934' name='nonblock' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2071' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_shutdown' mangled-name='drm_atomic_helper_shutdown' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_shutdown'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='3115' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_swap_state' mangled-name='drm_atomic_helper_swap_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2756' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_swap_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2756' column='1'/>
+        <parameter type-id='b50a4934' name='stall' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2757' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_update_plane' mangled-name='drm_atomic_helper_update_plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2887' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_update_plane'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2887' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2888' column='1'/>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2889' column='1'/>
+        <parameter type-id='95e97e5e' name='crtc_x' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2890' column='1'/>
+        <parameter type-id='95e97e5e' name='crtc_y' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2890' column='1'/>
+        <parameter type-id='f0981eeb' name='crtc_w' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2891' column='1'/>
+        <parameter type-id='f0981eeb' name='crtc_h' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2891' column='1'/>
+        <parameter type-id='8f92235e' name='src_x' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2892' column='1'/>
+        <parameter type-id='8f92235e' name='src_y' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2892' column='1'/>
+        <parameter type-id='8f92235e' name='src_w' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2893' column='1'/>
+        <parameter type-id='8f92235e' name='src_h' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2893' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2894' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_wait_for_dependencies' mangled-name='drm_atomic_helper_wait_for_dependencies' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_wait_for_dependencies'>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='2174' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_wait_for_fences' mangled-name='drm_atomic_helper_wait_for_fences' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1429' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_wait_for_fences'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1429' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1430' column='1'/>
+        <parameter type-id='b50a4934' name='pre_swap' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1431' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_helper_wait_for_flip_done' mangled-name='drm_atomic_helper_wait_for_flip_done' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_wait_for_flip_done'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1535' column='1'/>
+        <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1536' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_nonblocking_commit' mangled-name='drm_atomic_nonblocking_commit' filepath='include/drm/drm_atomic.h' line='684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_nonblocking_commit'>
+        <parameter type-id='e3dd029e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_normalize_zpos' mangled-name='drm_atomic_normalize_zpos' filepath='include/drm/drm_blend.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_normalize_zpos'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='e3dd029e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_private_obj_fini' mangled-name='drm_atomic_private_obj_fini' filepath='include/drm/drm_atomic.h' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_private_obj_fini'>
+        <parameter type-id='11c98e9a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_private_obj_init' mangled-name='drm_atomic_private_obj_init' filepath='include/drm/drm_atomic.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_private_obj_init'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='11c98e9a'/>
+        <parameter type-id='4ea020ae'/>
+        <parameter type-id='515fa1af'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_set_crtc_for_connector' mangled-name='drm_atomic_set_crtc_for_connector' filepath='include/drm/drm_atomic_uapi.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_crtc_for_connector'>
+        <parameter type-id='249ef586'/>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_set_crtc_for_plane' mangled-name='drm_atomic_set_crtc_for_plane' filepath='include/drm/drm_atomic_uapi.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_crtc_for_plane'>
+        <parameter type-id='d0835005'/>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_set_fb_for_plane' mangled-name='drm_atomic_set_fb_for_plane' filepath='include/drm/drm_atomic_uapi.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_fb_for_plane'>
+        <parameter type-id='d0835005'/>
+        <parameter type-id='7b332e1c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_atomic_set_mode_prop_for_crtc' mangled-name='drm_atomic_set_mode_prop_for_crtc' filepath='include/drm/drm_atomic_uapi.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_mode_prop_for_crtc'>
+        <parameter type-id='35078cb9'/>
+        <parameter type-id='c4126d52'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_state_alloc' mangled-name='drm_atomic_state_alloc' filepath='include/drm/drm_atomic.h' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_alloc'>
+        <parameter type-id='8898134d'/>
+        <return type-id='e3dd029e'/>
+      </function-decl>
+      <function-decl name='drm_atomic_state_clear' mangled-name='drm_atomic_state_clear' filepath='include/drm/drm_atomic.h' line='411' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_clear'>
+        <parameter type-id='e3dd029e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_bridge_add' mangled-name='drm_bridge_add' filepath='include/drm/drm_bridge.h' line='771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_add'>
+        <parameter type-id='8582e5ec'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_bridge_attach' mangled-name='drm_bridge_attach' filepath='include/drm/drm_bridge.h' line='774' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_attach'>
+        <parameter type-id='74d89ebd'/>
+        <parameter type-id='8582e5ec'/>
+        <parameter type-id='8582e5ec'/>
+        <parameter type-id='6a662de1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_bridge_chain_mode_set' mangled-name='drm_bridge_chain_mode_set' filepath='include/drm/drm_bridge.h' line='845' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_chain_mode_set'>
+        <parameter type-id='8582e5ec'/>
+        <parameter type-id='745b39e8'/>
+        <parameter type-id='745b39e8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_bridge_hpd_notify' mangled-name='drm_bridge_hpd_notify' filepath='drivers/gpu/drm/drm_bridge.c' line='1189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_hpd_notify'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='1189' column='1'/>
+        <parameter type-id='f7b0e1b4' name='status' filepath='drivers/gpu/drm/drm_bridge.c' line='1190' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_bridge_remove' mangled-name='drm_bridge_remove' filepath='include/drm/drm_bridge.h' line='772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_remove'>
+        <parameter type-id='8582e5ec'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_compat_ioctl' mangled-name='drm_compat_ioctl' filepath='drivers/gpu/drm/drm_ioc32.c' line='981' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_compat_ioctl'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_ioc32.c' line='981' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='drivers/gpu/drm/drm_ioc32.c' line='981' column='1'/>
+        <parameter type-id='7359adad' name='arg' filepath='drivers/gpu/drm/drm_ioc32.c' line='981' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='drm_connector_attach_edid_property' mangled-name='drm_connector_attach_edid_property' filepath='drivers/gpu/drm/drm_connector.c' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_attach_edid_property'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='367' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_connector_attach_encoder' mangled-name='drm_connector_attach_encoder' filepath='include/drm/drm_connector.h' line='1525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_attach_encoder'>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='74d89ebd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_connector_cleanup' mangled-name='drm_connector_cleanup' filepath='include/drm/drm_connector.h' line='1528' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_cleanup'>
+        <parameter type-id='4db02c58'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_connector_has_possible_encoder' mangled-name='drm_connector_has_possible_encoder' filepath='drivers/gpu/drm/drm_connector.c' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_has_possible_encoder'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='421' column='1'/>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_connector.c' line='422' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_connector_init' mangled-name='drm_connector_init' filepath='include/drm/drm_connector.h' line='1513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_init'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='3fb29739'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_connector_init_with_ddc' mangled-name='drm_connector_init_with_ddc' filepath='include/drm/drm_connector.h' line='1517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_init_with_ddc'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='3fb29739'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='b9af02c3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_connector_list_iter_begin' mangled-name='drm_connector_list_iter_begin' filepath='drivers/gpu/drm/drm_connector.c' line='657' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_begin'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_connector.c' line='657' column='1'/>
+        <parameter type-id='40a902ec' name='iter' filepath='drivers/gpu/drm/drm_connector.c' line='658' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_connector_list_iter_end' mangled-name='drm_connector_list_iter_end' filepath='include/drm/drm_connector.h' line='1696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_end'>
+        <parameter type-id='40a902ec'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_connector_list_iter_next' mangled-name='drm_connector_list_iter_next' filepath='include/drm/drm_connector.h' line='1695' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_next'>
+        <parameter type-id='40a902ec'/>
+        <return type-id='4db02c58'/>
+      </function-decl>
+      <function-decl name='drm_connector_register' mangled-name='drm_connector_register' filepath='include/drm/drm_connector.h' line='1523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_register'>
+        <parameter type-id='4db02c58'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_connector_set_panel_orientation' mangled-name='drm_connector_set_panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_set_panel_orientation'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='2183' column='1'/>
+        <parameter type-id='59f3d325' name='panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2184' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_connector_unregister' mangled-name='drm_connector_unregister' filepath='include/drm/drm_connector.h' line='1524' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_unregister'>
+        <parameter type-id='4db02c58'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_connector_update_edid_property' mangled-name='drm_connector_update_edid_property' filepath='include/drm/drm_connector.h' line='1637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_update_edid_property'>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='776adf76'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_crtc_arm_vblank_event' mangled-name='drm_crtc_arm_vblank_event' filepath='drivers/gpu/drm/drm_vblank.c' line='1051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_arm_vblank_event'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1051' column='1'/>
+        <parameter type-id='6301fad2' name='e' filepath='drivers/gpu/drm/drm_vblank.c' line='1052' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_cleanup' mangled-name='drm_crtc_cleanup' filepath='drivers/gpu/drm/drm_crtc.c' line='343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_cleanup'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_crtc.c' line='343' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_enable_color_mgmt' mangled-name='drm_crtc_enable_color_mgmt' filepath='drivers/gpu/drm/drm_color_mgmt.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_enable_color_mgmt'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_color_mgmt.c' line='163' column='1'/>
+        <parameter type-id='6e160b14' name='degamma_lut_size' filepath='drivers/gpu/drm/drm_color_mgmt.c' line='164' column='1'/>
+        <parameter type-id='b50a4934' name='has_ctm' filepath='drivers/gpu/drm/drm_color_mgmt.c' line='165' column='1'/>
+        <parameter type-id='6e160b14' name='gamma_lut_size' filepath='drivers/gpu/drm/drm_color_mgmt.c' line='166' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_handle_vblank' mangled-name='drm_crtc_handle_vblank' filepath='drivers/gpu/drm/drm_vblank.c' line='1993' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_handle_vblank'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1993' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_crtc_init_with_planes' mangled-name='drm_crtc_init_with_planes' filepath='include/drm/drm_crtc.h' line='1205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_init_with_planes'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='b64ad7cb'/>
+        <parameter type-id='a6711537'/>
+        <parameter type-id='a6711537'/>
+        <parameter type-id='7236c5c8'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_crtc_send_vblank_event' mangled-name='drm_crtc_send_vblank_event' filepath='include/drm/drm_vblank.h' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_send_vblank_event'>
+        <parameter type-id='b64ad7cb'/>
+        <parameter type-id='6301fad2'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_set_max_vblank_count' mangled-name='drm_crtc_set_max_vblank_count' filepath='drivers/gpu/drm/drm_vblank.c' line='1409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_set_max_vblank_count'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1409' column='1'/>
+        <parameter type-id='19c2251e' name='max_vblank_count' filepath='drivers/gpu/drm/drm_vblank.c' line='1410' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_vblank_count_and_time' mangled-name='drm_crtc_vblank_count_and_time' filepath='drivers/gpu/drm/drm_vblank.c' line='969' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_count_and_time'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='969' column='1'/>
+        <parameter type-id='44372936' name='vblanktime' filepath='drivers/gpu/drm/drm_vblank.c' line='970' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='drm_crtc_vblank_get' mangled-name='drm_crtc_vblank_get' filepath='include/drm/drm_vblank.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_get'>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_crtc_vblank_helper_get_vblank_timestamp' mangled-name='drm_crtc_vblank_helper_get_vblank_timestamp' filepath='drivers/gpu/drm/drm_vblank.c' line='829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_helper_get_vblank_timestamp'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='829' column='1'/>
+        <parameter type-id='7292109c' name='max_error' filepath='drivers/gpu/drm/drm_vblank.c' line='830' column='1'/>
+        <parameter type-id='44372936' name='vblank_time' filepath='drivers/gpu/drm/drm_vblank.c' line='831' column='1'/>
+        <parameter type-id='b50a4934' name='in_vblank_irq' filepath='drivers/gpu/drm/drm_vblank.c' line='832' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_crtc_vblank_off' mangled-name='drm_crtc_vblank_off' filepath='drivers/gpu/drm/drm_vblank.c' line='1291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_off'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1291' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_vblank_on' mangled-name='drm_crtc_vblank_on' filepath='drivers/gpu/drm/drm_vblank.c' line='1433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_on'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1433' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_vblank_put' mangled-name='drm_crtc_vblank_put' filepath='include/drm/drm_vblank.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_put'>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_crtc_wait_one_vblank' mangled-name='drm_crtc_wait_one_vblank' filepath='include/drm/drm_vblank.h' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_wait_one_vblank'>
+        <parameter type-id='b64ad7cb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_cvt_mode' mangled-name='drm_cvt_mode' filepath='drivers/gpu/drm/drm_modes.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_cvt_mode'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modes.c' line='140' column='1'/>
+        <parameter type-id='95e97e5e' name='hdisplay' filepath='drivers/gpu/drm/drm_modes.c' line='140' column='1'/>
+        <parameter type-id='95e97e5e' name='vdisplay' filepath='drivers/gpu/drm/drm_modes.c' line='141' column='1'/>
+        <parameter type-id='95e97e5e' name='vrefresh' filepath='drivers/gpu/drm/drm_modes.c' line='141' column='1'/>
+        <parameter type-id='b50a4934' name='reduced' filepath='drivers/gpu/drm/drm_modes.c' line='142' column='1'/>
+        <parameter type-id='b50a4934' name='interlaced' filepath='drivers/gpu/drm/drm_modes.c' line='142' column='1'/>
+        <parameter type-id='b50a4934' name='margins' filepath='drivers/gpu/drm/drm_modes.c' line='142' column='1'/>
+        <return type-id='11e02f83'/>
+      </function-decl>
+      <function-decl name='drm_debugfs_create_files' mangled-name='drm_debugfs_create_files' filepath='include/drm/drm_debugfs.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_debugfs_create_files'>
+        <parameter type-id='09894807'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='27675065'/>
+        <parameter type-id='6c3b3f8e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_detect_hdmi_monitor' mangled-name='drm_detect_hdmi_monitor' filepath='drivers/gpu/drm/drm_edid.c' line='4760' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_hdmi_monitor'>
+        <parameter type-id='c91d1bf1' name='edid' filepath='drivers/gpu/drm/drm_edid.c' line='4760' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_detect_monitor_audio' mangled-name='drm_detect_monitor_audio' filepath='include/drm/drm_edid.h' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_monitor_audio'>
+        <parameter type-id='c91d1bf1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_dev_alloc' mangled-name='drm_dev_alloc' filepath='drivers/gpu/drm/drm_drv.c' line='719' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_alloc'>
+        <parameter type-id='1d52bc4d' name='driver' filepath='drivers/gpu/drm/drm_drv.c' line='719' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/gpu/drm/drm_drv.c' line='720' column='1'/>
+        <return type-id='8898134d'/>
+      </function-decl>
+      <function-decl name='drm_dev_dbg' mangled-name='drm_dev_dbg' filepath='include/drm/drm_print.h' line='337' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_dbg'>
+        <parameter type-id='8df61054'/>
+        <parameter type-id='189697ba'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dev_enter' mangled-name='drm_dev_enter' filepath='include/drm/drm_drv.h' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_enter'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_dev_exit' mangled-name='drm_dev_exit' filepath='include/drm/drm_drv.h' line='643' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_exit'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dev_get' mangled-name='drm_dev_get' filepath='include/drm/drm_drv.h' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_get'>
+        <parameter type-id='8898134d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dev_printk' mangled-name='drm_dev_printk' filepath='drivers/gpu/drm/drm_print.c' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_printk'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/gpu/drm/drm_print.c' line='238' column='1'/>
+        <parameter type-id='80f4b756' name='level' filepath='drivers/gpu/drm/drm_print.c' line='238' column='1'/>
+        <parameter type-id='80f4b756' name='format' filepath='drivers/gpu/drm/drm_print.c' line='239' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dev_put' mangled-name='drm_dev_put' filepath='drivers/gpu/drm/drm_drv.c' line='779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_put'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='779' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dev_register' mangled-name='drm_dev_register' filepath='drivers/gpu/drm/drm_drv.c' line='862' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_register'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='862' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/gpu/drm/drm_drv.c' line='862' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_dev_set_unique' mangled-name='drm_dev_set_unique' filepath='drivers/gpu/drm/drm_drv.c' line='970' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_set_unique'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='970' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_drv.c' line='970' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_dev_unplug' mangled-name='drm_dev_unplug' filepath='drivers/gpu/drm/drm_drv.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_unplug'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='460' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dev_unregister' mangled-name='drm_dev_unregister' filepath='drivers/gpu/drm/drm_drv.c' line='933' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_unregister'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='933' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_display_mode_to_videomode' mangled-name='drm_display_mode_to_videomode' filepath='drivers/gpu/drm/drm_modes.c' line='629' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_display_mode_to_videomode'>
+        <parameter type-id='745b39e8' name='dmode' filepath='drivers/gpu/drm/drm_modes.c' line='629' column='1'/>
+        <parameter type-id='83e7c23f' name='vm' filepath='drivers/gpu/drm/drm_modes.c' line='630' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_do_get_edid' mangled-name='drm_do_get_edid' filepath='drivers/gpu/drm/drm_edid.c' line='1938' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_do_get_edid'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_edid.c' line='1938' column='1'/>
+        <parameter type-id='e879a339' name='get_edid_block' filepath='drivers/gpu/drm/drm_edid.c' line='1939' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_edid.c' line='1941' column='1'/>
+        <return type-id='c91d1bf1'/>
+      </function-decl>
+      <function-decl name='drm_dp_aux_register' mangled-name='drm_dp_aux_register' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1664' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_aux_register'>
+        <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1664' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_dp_aux_unregister' mangled-name='drm_dp_aux_unregister' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_aux_unregister'>
+        <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1696' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dp_bw_code_to_link_rate' mangled-name='drm_dp_bw_code_to_link_rate' filepath='drivers/gpu/drm/drm_dp_helper.c' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_bw_code_to_link_rate'>
+        <parameter type-id='f9b06939' name='link_bw' filepath='drivers/gpu/drm/drm_dp_helper.c' line='178' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_dp_channel_eq_ok' mangled-name='drm_dp_channel_eq_ok' filepath='drivers/gpu/drm/drm_dp_helper.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_channel_eq_ok'>
+        <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='64' column='1'/>
+        <parameter type-id='95e97e5e' name='lane_count' filepath='drivers/gpu/drm/drm_dp_helper.c' line='65' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_dp_clock_recovery_ok' mangled-name='drm_dp_clock_recovery_ok' filepath='drivers/gpu/drm/drm_dp_helper.c' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_clock_recovery_ok'>
+        <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='84' column='1'/>
+        <parameter type-id='95e97e5e' name='lane_count' filepath='drivers/gpu/drm/drm_dp_helper.c' line='85' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_dp_dpcd_read' mangled-name='drm_dp_dpcd_read' filepath='drivers/gpu/drm/drm_dp_helper.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_dpcd_read'>
+        <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='284' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpu/drm/drm_dp_helper.c' line='284' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/gpu/drm/drm_dp_helper.c' line='285' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_dp_helper.c' line='285' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='drm_dp_dpcd_read_link_status' mangled-name='drm_dp_dpcd_read_link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_dpcd_read_link_status'>
+        <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='358' column='1'/>
+        <parameter type-id='8bff8096' name='status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='359' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_dp_dpcd_write' mangled-name='drm_dp_dpcd_write' filepath='drivers/gpu/drm/drm_dp_helper.c' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_dpcd_write'>
+        <parameter type-id='7c5f8cd8' name='aux' filepath='drivers/gpu/drm/drm_dp_helper.c' line='334' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpu/drm/drm_dp_helper.c' line='334' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/gpu/drm/drm_dp_helper.c' line='335' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_dp_helper.c' line='335' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='drm_dp_get_adjust_request_pre_emphasis' mangled-name='drm_dp_get_adjust_request_pre_emphasis' filepath='drivers/gpu/drm/drm_dp_helper.c' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_get_adjust_request_pre_emphasis'>
+        <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='112' column='1'/>
+        <parameter type-id='95e97e5e' name='lane' filepath='drivers/gpu/drm/drm_dp_helper.c' line='113' column='1'/>
+        <return type-id='f9b06939'/>
+      </function-decl>
+      <function-decl name='drm_dp_get_adjust_request_voltage' mangled-name='drm_dp_get_adjust_request_voltage' filepath='drivers/gpu/drm/drm_dp_helper.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_get_adjust_request_voltage'>
+        <parameter type-id='bbaf3419' name='link_status' filepath='drivers/gpu/drm/drm_dp_helper.c' line='99' column='1'/>
+        <parameter type-id='95e97e5e' name='lane' filepath='drivers/gpu/drm/drm_dp_helper.c' line='100' column='1'/>
+        <return type-id='f9b06939'/>
+      </function-decl>
+      <function-decl name='drm_dp_get_edid_quirks' mangled-name='drm_dp_get_edid_quirks' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_get_edid_quirks'>
+        <parameter type-id='776adf76' name='edid' filepath='drivers/gpu/drm/drm_dp_helper.c' line='1912' column='1'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='drm_dp_link_rate_to_bw_code' mangled-name='drm_dp_link_rate_to_bw_code' filepath='drivers/gpu/drm/drm_dp_helper.c' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_rate_to_bw_code'>
+        <parameter type-id='95e97e5e' name='link_rate' filepath='drivers/gpu/drm/drm_dp_helper.c' line='171' column='1'/>
+        <return type-id='f9b06939'/>
+      </function-decl>
+      <function-decl name='drm_dp_link_train_channel_eq_delay' mangled-name='drm_dp_link_train_channel_eq_delay' filepath='drivers/gpu/drm/drm_dp_helper.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_train_channel_eq_delay'>
+        <parameter type-id='bbaf3419' name='dpcd' filepath='drivers/gpu/drm/drm_dp_helper.c' line='153' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dp_link_train_clock_recovery_delay' mangled-name='drm_dp_link_train_clock_recovery_delay' filepath='drivers/gpu/drm/drm_dp_helper.c' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dp_link_train_clock_recovery_delay'>
+        <parameter type-id='bbaf3419' name='dpcd' filepath='drivers/gpu/drm/drm_dp_helper.c' line='135' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_dsc_pps_payload_pack' mangled-name='drm_dsc_pps_payload_pack' filepath='drivers/gpu/drm/drm_dsc.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dsc_pps_payload_pack'>
+        <parameter type-id='fe3087c9' name='pps_payload' filepath='drivers/gpu/drm/drm_dsc.c' line='69' column='1'/>
+        <parameter type-id='fb7c1d0f' name='dsc_cfg' filepath='drivers/gpu/drm/drm_dsc.c' line='70' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_edid_block_valid' mangled-name='drm_edid_block_valid' filepath='drivers/gpu/drm/drm_edid.c' line='1661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_edid_block_valid'>
+        <parameter type-id='8bff8096' name='raw_edid' filepath='drivers/gpu/drm/drm_edid.c' line='1661' column='1'/>
+        <parameter type-id='95e97e5e' name='block' filepath='drivers/gpu/drm/drm_edid.c' line='1661' column='1'/>
+        <parameter type-id='b50a4934' name='print_bad_edid' filepath='drivers/gpu/drm/drm_edid.c' line='1661' column='1'/>
+        <parameter type-id='d8e6b335' name='edid_corrupt' filepath='drivers/gpu/drm/drm_edid.c' line='1662' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_encoder_cleanup' mangled-name='drm_encoder_cleanup' filepath='drivers/gpu/drm/drm_encoder.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_encoder_cleanup'>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_encoder.c' line='161' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_encoder_init' mangled-name='drm_encoder_init' filepath='include/drm/drm_encoder.h' line='193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_encoder_init'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='74d89ebd'/>
+        <parameter type-id='1701f1ac'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_event_cancel_free' mangled-name='drm_event_cancel_free' filepath='drivers/gpu/drm/drm_file.c' line='759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_event_cancel_free'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_file.c' line='759' column='1'/>
+        <parameter type-id='16ab0351' name='p' filepath='drivers/gpu/drm/drm_file.c' line='760' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_event_reserve_init' mangled-name='drm_event_reserve_init' filepath='drivers/gpu/drm/drm_file.c' line='734' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_event_reserve_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_file.c' line='734' column='1'/>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_file.c' line='735' column='1'/>
+        <parameter type-id='16ab0351' name='p' filepath='drivers/gpu/drm/drm_file.c' line='736' column='1'/>
+        <parameter type-id='5b35aab5' name='e' filepath='drivers/gpu/drm/drm_file.c' line='737' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_fb_cma_get_gem_obj' mangled-name='drm_fb_cma_get_gem_obj' filepath='drivers/gpu/drm/drm_fb_cma_helper.c' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_fb_cma_get_gem_obj'>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_fb_cma_helper.c' line='39' column='1'/>
+        <parameter type-id='f0981eeb' name='plane' filepath='drivers/gpu/drm/drm_fb_cma_helper.c' line='40' column='1'/>
+        <return type-id='faa9576a'/>
+      </function-decl>
+      <function-decl name='drm_flip_work_cleanup' mangled-name='drm_flip_work_cleanup' filepath='drivers/gpu/drm/drm_flip_work.c' line='166' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_flip_work_cleanup'>
+        <parameter type-id='705eaeca' name='work' filepath='drivers/gpu/drm/drm_flip_work.c' line='166' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_flip_work_commit' mangled-name='drm_flip_work_commit' filepath='drivers/gpu/drm/drm_flip_work.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_flip_work_commit'>
+        <parameter type-id='705eaeca' name='work' filepath='drivers/gpu/drm/drm_flip_work.c' line='101' column='1'/>
+        <parameter type-id='242e3d19' name='wq' filepath='drivers/gpu/drm/drm_flip_work.c' line='102' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_flip_work_init' mangled-name='drm_flip_work_init' filepath='drivers/gpu/drm/drm_flip_work.c' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_flip_work_init'>
+        <parameter type-id='705eaeca' name='work' filepath='drivers/gpu/drm/drm_flip_work.c' line='147' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_flip_work.c' line='148' column='1'/>
+        <parameter type-id='12758247' name='func' filepath='drivers/gpu/drm/drm_flip_work.c' line='148' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_flip_work_queue' mangled-name='drm_flip_work_queue' filepath='drivers/gpu/drm/drm_flip_work.c' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_flip_work_queue'>
+        <parameter type-id='705eaeca' name='work' filepath='drivers/gpu/drm/drm_flip_work.c' line='76' column='1'/>
+        <parameter type-id='eaa32e2f' name='val' filepath='drivers/gpu/drm/drm_flip_work.c' line='76' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_format_info' mangled-name='drm_format_info' filepath='drivers/gpu/drm/drm_fourcc.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_format_info'>
+        <parameter type-id='19c2251e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='312' column='1'/>
+        <return type-id='f10b2208'/>
+      </function-decl>
+      <function-decl name='drm_framebuffer_init' mangled-name='drm_framebuffer_init' filepath='include/drm/drm_framebuffer.h' line='218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_framebuffer_init'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='7b332e1c'/>
+        <parameter type-id='8e992c3d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_dumb_create_internal' mangled-name='drm_gem_cma_dumb_create_internal' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_dumb_create_internal'>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='211' column='1'/>
+        <parameter type-id='8898134d' name='drm' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='212' column='1'/>
+        <parameter type-id='28cbbf40' name='args' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='213' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_free_object' mangled-name='drm_gem_cma_free_object' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_free_object'>
+        <parameter type-id='abd62a96' name='gem_obj' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='176' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_mmap' mangled-name='drm_gem_cma_mmap' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_mmap'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='308' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='308' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_prime_get_sg_table' mangled-name='drm_gem_cma_prime_get_sg_table' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_prime_get_sg_table'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='427' column='1'/>
+        <return type-id='4adb0e6a'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_prime_import_sg_table' mangled-name='drm_gem_cma_prime_import_sg_table' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_prime_import_sg_table'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='468' column='1'/>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='469' column='1'/>
+        <parameter type-id='4adb0e6a' name='sgt' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='470' column='1'/>
+        <return type-id='abd62a96'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_prime_mmap' mangled-name='drm_gem_cma_prime_mmap' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_prime_mmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='504' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='505' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_prime_vmap' mangled-name='drm_gem_cma_prime_vmap' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_prime_vmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='533' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='drm_gem_cma_prime_vunmap' mangled-name='drm_gem_cma_prime_vunmap' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_prime_vunmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='552' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='552' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='drm_gem_cma_vm_ops' type-id='92e9b57c' mangled-name='drm_gem_cma_vm_ops' visibility='default' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='263' column='1' elf-symbol-id='drm_gem_cma_vm_ops'/>
+      <function-decl name='drm_gem_create_mmap_offset' mangled-name='drm_gem_create_mmap_offset' filepath='drivers/gpu/drm/drm_gem.c' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_create_mmap_offset'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='514' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_dmabuf_mmap' mangled-name='drm_gem_dmabuf_mmap' filepath='drivers/gpu/drm/drm_prime.c' line='771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_mmap'>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='771' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_prime.c' line='771' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_dmabuf_release' mangled-name='drm_gem_dmabuf_release' filepath='drivers/gpu/drm/drm_prime.c' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_release'>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='267' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_dmabuf_vmap' mangled-name='drm_gem_dmabuf_vmap' filepath='drivers/gpu/drm/drm_prime.c' line='672' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_vmap'>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='672' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='drm_gem_dmabuf_vunmap' mangled-name='drm_gem_dmabuf_vunmap' filepath='drivers/gpu/drm/drm_prime.c' line='693' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_dmabuf_vunmap'>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='693' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='drivers/gpu/drm/drm_prime.c' line='693' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_fb_create' mangled-name='drm_gem_fb_create' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_fb_create'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='264' column='1'/>
+        <parameter type-id='9e99ecc1' name='file' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='264' column='1'/>
+        <parameter type-id='92ed24a5' name='mode_cmd' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='265' column='1'/>
+        <return type-id='7b332e1c'/>
+      </function-decl>
+      <function-decl name='drm_gem_fb_create_handle' mangled-name='drm_gem_fb_create_handle' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_fb_create_handle'>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='118' column='1'/>
+        <parameter type-id='9e99ecc1' name='file' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='118' column='1'/>
+        <parameter type-id='807869d3' name='handle' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='119' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_fb_destroy' mangled-name='drm_gem_fb_destroy' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_fb_destroy'>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='93' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_fb_get_obj' mangled-name='drm_gem_fb_get_obj' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_fb_get_obj'>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='54' column='1'/>
+        <parameter type-id='f0981eeb' name='plane' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='55' column='1'/>
+        <return type-id='abd62a96'/>
+      </function-decl>
+      <function-decl name='drm_gem_fb_prepare_fb' mangled-name='drm_gem_fb_prepare_fb' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='454' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_fb_prepare_fb'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='454' column='1'/>
+        <parameter type-id='d0835005' name='state' filepath='drivers/gpu/drm/drm_gem_framebuffer_helper.c' line='455' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_free_mmap_offset' mangled-name='drm_gem_free_mmap_offset' filepath='drivers/gpu/drm/drm_gem.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_free_mmap_offset'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='465' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_get_pages' mangled-name='drm_gem_get_pages' filepath='drivers/gpu/drm/drm_gem.c' line='556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_get_pages'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='556' column='1'/>
+        <return type-id='9f93c9da'/>
+      </function-decl>
+      <function-decl name='drm_gem_handle_create' mangled-name='drm_gem_handle_create' filepath='include/drm/drm_gem.h' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_handle_create'>
+        <parameter type-id='9e99ecc1'/>
+        <parameter type-id='abd62a96'/>
+        <parameter type-id='f9409001'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_lock_reservations' mangled-name='drm_gem_lock_reservations' filepath='drivers/gpu/drm/drm_gem.c' line='1265' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_lock_reservations'>
+        <parameter type-id='3e2545f4' name='objs' filepath='drivers/gpu/drm/drm_gem.c' line='1265' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/gpu/drm/drm_gem.c' line='1265' column='1'/>
+        <parameter type-id='c1d02a64' name='acquire_ctx' filepath='drivers/gpu/drm/drm_gem.c' line='1266' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_map_attach' mangled-name='drm_gem_map_attach' filepath='drivers/gpu/drm/drm_prime.c' line='576' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_map_attach'>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='576' column='1'/>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='577' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_map_detach' mangled-name='drm_gem_map_detach' filepath='drivers/gpu/drm/drm_prime.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_map_detach'>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='594' column='1'/>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='595' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_map_dma_buf' mangled-name='drm_gem_map_dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='615' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_map_dma_buf'>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='615' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='drivers/gpu/drm/drm_prime.c' line='616' column='1'/>
+        <return type-id='4adb0e6a'/>
+      </function-decl>
+      <function-decl name='drm_gem_mmap' mangled-name='drm_gem_mmap' filepath='drivers/gpu/drm/drm_gem.c' line='1131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_mmap'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_gem.c' line='1131' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem.c' line='1131' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_mmap_obj' mangled-name='drm_gem_mmap_obj' filepath='drivers/gpu/drm/drm_gem.c' line='1070' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_mmap_obj'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='1070' column='1'/>
+        <parameter type-id='7359adad' name='obj_size' filepath='drivers/gpu/drm/drm_gem.c' line='1070' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem.c' line='1071' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_object_free' mangled-name='drm_gem_object_free' filepath='drivers/gpu/drm/drm_gem.c' line='981' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_free'>
+        <parameter type-id='aa29ecab' name='kref' filepath='drivers/gpu/drm/drm_gem.c' line='981' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_object_init' mangled-name='drm_gem_object_init' filepath='drivers/gpu/drm/drm_gem.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_gem.c' line='123' column='1'/>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='124' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_gem.c' line='124' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_object_lookup' mangled-name='drm_gem_object_lookup' filepath='include/drm/drm_gem.h' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_lookup'>
+        <parameter type-id='9e99ecc1'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='abd62a96'/>
+      </function-decl>
+      <function-decl name='drm_gem_object_put_locked' mangled-name='drm_gem_object_put_locked' filepath='drivers/gpu/drm/drm_gem.c' line='1006' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_put_locked'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='1006' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_object_release' mangled-name='drm_gem_object_release' filepath='drivers/gpu/drm/drm_gem.c' line='960' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_release'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='960' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_prime_export' mangled-name='drm_gem_prime_export' filepath='drivers/gpu/drm/drm_prime.c' line='897' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_export'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_prime.c' line='897' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='drivers/gpu/drm/drm_prime.c' line='898' column='1'/>
+        <return type-id='5e4f599b'/>
+      </function-decl>
+      <function-decl name='drm_gem_prime_fd_to_handle' mangled-name='drm_gem_prime_fd_to_handle' filepath='drivers/gpu/drm/drm_prime.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_fd_to_handle'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='293' column='1'/>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_prime.c' line='294' column='1'/>
+        <parameter type-id='95e97e5e' name='prime_fd' filepath='drivers/gpu/drm/drm_prime.c' line='294' column='1'/>
+        <parameter type-id='90421557' name='handle' filepath='drivers/gpu/drm/drm_prime.c' line='295' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_prime_handle_to_fd' mangled-name='drm_gem_prime_handle_to_fd' filepath='drivers/gpu/drm/drm_prime.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_handle_to_fd'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='424' column='1'/>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_prime.c' line='425' column='1'/>
+        <parameter type-id='8f92235e' name='handle' filepath='drivers/gpu/drm/drm_prime.c' line='425' column='1'/>
+        <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_prime.c' line='426' column='1'/>
+        <parameter type-id='7292109c' name='prime_fd' filepath='drivers/gpu/drm/drm_prime.c' line='427' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_prime_import' mangled-name='drm_gem_prime_import' filepath='drivers/gpu/drm/drm_prime.c' line='999' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_import'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='999' column='1'/>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='1000' column='1'/>
+        <return type-id='abd62a96'/>
+      </function-decl>
+      <function-decl name='drm_gem_prime_import_dev' mangled-name='drm_gem_prime_import_dev' filepath='drivers/gpu/drm/drm_prime.c' line='929' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_import_dev'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='929' column='1'/>
+        <parameter type-id='5e4f599b' name='dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='930' column='1'/>
+        <parameter type-id='fa0b179b' name='attach_dev' filepath='drivers/gpu/drm/drm_prime.c' line='931' column='1'/>
+        <return type-id='abd62a96'/>
+      </function-decl>
+      <function-decl name='drm_gem_prime_mmap' mangled-name='drm_gem_prime_mmap' filepath='drivers/gpu/drm/drm_prime.c' line='713' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_prime_mmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_prime.c' line='713' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_prime.c' line='713' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_private_object_init' mangled-name='drm_gem_private_object_init' filepath='drivers/gpu/drm/drm_gem.c' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_private_object_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_gem.c' line='150' column='1'/>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='151' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_gem.c' line='151' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_put_pages' mangled-name='drm_gem_put_pages' filepath='drivers/gpu/drm/drm_gem.c' line='623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_put_pages'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='623' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='drivers/gpu/drm/drm_gem.c' line='623' column='1'/>
+        <parameter type-id='b50a4934' name='dirty' filepath='drivers/gpu/drm/drm_gem.c' line='624' column='1'/>
+        <parameter type-id='b50a4934' name='accessed' filepath='drivers/gpu/drm/drm_gem.c' line='624' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_create' mangled-name='drm_gem_shmem_create' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_create'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='105' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='105' column='1'/>
+        <return type-id='970cb2d9'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_free_object' mangled-name='drm_gem_shmem_free_object' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_free_object'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='119' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_get_sg_table' mangled-name='drm_gem_shmem_get_sg_table' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='669' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_get_sg_table'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='669' column='1'/>
+        <return type-id='4adb0e6a'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_mmap' mangled-name='drm_gem_shmem_mmap' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_mmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='603' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='603' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_pin' mangled-name='drm_gem_shmem_pin' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_pin'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='234' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_print_info' mangled-name='drm_gem_shmem_print_info' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_print_info'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='642' column='1'/>
+        <parameter type-id='f0981eeb' name='indent' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='642' column='1'/>
+        <parameter type-id='e8a41089' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='643' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_unpin' mangled-name='drm_gem_shmem_unpin' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_unpin'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='251' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_vmap' mangled-name='drm_gem_shmem_vmap' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_vmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='317' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='drm_gem_shmem_vunmap' mangled-name='drm_gem_shmem_vunmap' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='365' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_shmem_vunmap'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='365' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='drivers/gpu/drm/drm_gem_shmem_helper.c' line='365' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_unlock_reservations' mangled-name='drm_gem_unlock_reservations' filepath='drivers/gpu/drm/drm_gem.c' line='1317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_unlock_reservations'>
+        <parameter type-id='3e2545f4' name='objs' filepath='drivers/gpu/drm/drm_gem.c' line='1317' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/gpu/drm/drm_gem.c' line='1317' column='1'/>
+        <parameter type-id='c1d02a64' name='acquire_ctx' filepath='drivers/gpu/drm/drm_gem.c' line='1318' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_unmap_dma_buf' mangled-name='drm_gem_unmap_dma_buf' filepath='drivers/gpu/drm/drm_prime.c' line='650' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_unmap_dma_buf'>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/gpu/drm/drm_prime.c' line='650' column='1'/>
+        <parameter type-id='4adb0e6a' name='sgt' filepath='drivers/gpu/drm/drm_prime.c' line='651' column='1'/>
+        <parameter type-id='eea6b025' name='dir' filepath='drivers/gpu/drm/drm_prime.c' line='652' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_vm_close' mangled-name='drm_gem_vm_close' filepath='drivers/gpu/drm/drm_gem.c' line='1038' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_vm_close'>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem.c' line='1038' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_gem_vm_open' mangled-name='drm_gem_vm_open' filepath='drivers/gpu/drm/drm_gem.c' line='1023' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_vm_open'>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem.c' line='1023' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_get_edid' mangled-name='drm_get_edid' filepath='include/drm/drm_edid.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_edid'>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='b9af02c3'/>
+        <return type-id='c91d1bf1'/>
+      </function-decl>
+      <function-decl name='drm_get_format_info' mangled-name='drm_get_format_info' filepath='include/drm/drm_fourcc.h' line='310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_format_info'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='92ed24a5'/>
+        <return type-id='f10b2208'/>
+      </function-decl>
+      <function-decl name='drm_get_format_name' mangled-name='drm_get_format_name' filepath='include/drm/drm_fourcc.h' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_format_name'>
+        <parameter type-id='8f92235e'/>
+        <parameter type-id='d00fb93a'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='drm_handle_vblank' mangled-name='drm_handle_vblank' filepath='drivers/gpu/drm/drm_vblank.c' line='1919' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_handle_vblank'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_vblank.c' line='1919' column='1'/>
+        <parameter type-id='f0981eeb' name='pipe' filepath='drivers/gpu/drm/drm_vblank.c' line='1919' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_hdmi_avi_infoframe_from_display_mode' mangled-name='drm_hdmi_avi_infoframe_from_display_mode' filepath='drivers/gpu/drm/drm_edid.c' line='5604' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_hdmi_avi_infoframe_from_display_mode'>
+        <parameter type-id='19ddc3a6' name='frame' filepath='drivers/gpu/drm/drm_edid.c' line='5604' column='1'/>
+        <parameter type-id='0e1f87e5' name='connector' filepath='drivers/gpu/drm/drm_edid.c' line='5605' column='1'/>
+        <parameter type-id='745b39e8' name='mode' filepath='drivers/gpu/drm/drm_edid.c' line='5606' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_helper_hpd_irq_event' mangled-name='drm_helper_hpd_irq_event' filepath='drivers/gpu/drm/drm_probe_helper.c' line='820' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_helper_hpd_irq_event'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='820' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_helper_mode_fill_fb_struct' mangled-name='drm_helper_mode_fill_fb_struct' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_helper_mode_fill_fb_struct'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='79' column='1'/>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='80' column='1'/>
+        <parameter type-id='92ed24a5' name='mode_cmd' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='81' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_helper_probe_single_connector_modes' mangled-name='drm_helper_probe_single_connector_modes' filepath='drivers/gpu/drm/drm_probe_helper.c' line='416' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_helper_probe_single_connector_modes'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_probe_helper.c' line='416' column='1'/>
+        <parameter type-id='8f92235e' name='maxX' filepath='drivers/gpu/drm/drm_probe_helper.c' line='417' column='1'/>
+        <parameter type-id='8f92235e' name='maxY' filepath='drivers/gpu/drm/drm_probe_helper.c' line='417' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_ioctl' mangled-name='drm_ioctl' filepath='drivers/gpu/drm/drm_ioctl.c' line='811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_ioctl'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_ioctl.c' line='811' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='drivers/gpu/drm/drm_ioctl.c' line='812' column='1'/>
+        <parameter type-id='7359adad' name='arg' filepath='drivers/gpu/drm/drm_ioctl.c' line='812' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='drm_irq_install' mangled-name='drm_irq_install' filepath='drivers/gpu/drm/drm_irq.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_irq_install'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_irq.c' line='106' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/gpu/drm/drm_irq.c' line='106' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_irq_uninstall' mangled-name='drm_irq_uninstall' filepath='drivers/gpu/drm/drm_irq.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_irq_uninstall'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_irq.c' line='169' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_kms_helper_hotplug_event' mangled-name='drm_kms_helper_hotplug_event' filepath='include/drm/drm_probe_helper.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_hotplug_event'>
+        <parameter type-id='8898134d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_kms_helper_poll_fini' mangled-name='drm_kms_helper_poll_fini' filepath='drivers/gpu/drm/drm_probe_helper.c' line='787' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_poll_fini'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='787' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_kms_helper_poll_init' mangled-name='drm_kms_helper_poll_init' filepath='drivers/gpu/drm/drm_probe_helper.c' line='774' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_poll_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='774' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mm_init' mangled-name='drm_mm_init' filepath='drivers/gpu/drm/drm_mm.c' line='966' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_init'>
+        <parameter type-id='0ee978f1' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='966' column='1'/>
+        <parameter type-id='91ce1af9' name='start' filepath='drivers/gpu/drm/drm_mm.c' line='966' column='1'/>
+        <parameter type-id='91ce1af9' name='size' filepath='drivers/gpu/drm/drm_mm.c' line='966' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mm_insert_node_in_range' mangled-name='drm_mm_insert_node_in_range' filepath='drivers/gpu/drm/drm_mm.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_insert_node_in_range'>
+        <parameter type-id='60f31a4e' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='517' column='1'/>
+        <parameter type-id='7c50e73f' name='node' filepath='drivers/gpu/drm/drm_mm.c' line='518' column='1'/>
+        <parameter type-id='91ce1af9' name='size' filepath='drivers/gpu/drm/drm_mm.c' line='519' column='1'/>
+        <parameter type-id='91ce1af9' name='alignment' filepath='drivers/gpu/drm/drm_mm.c' line='519' column='1'/>
+        <parameter type-id='7359adad' name='color' filepath='drivers/gpu/drm/drm_mm.c' line='520' column='1'/>
+        <parameter type-id='91ce1af9' name='range_start' filepath='drivers/gpu/drm/drm_mm.c' line='521' column='1'/>
+        <parameter type-id='91ce1af9' name='range_end' filepath='drivers/gpu/drm/drm_mm.c' line='521' column='1'/>
+        <parameter type-id='24e1ec7e' name='mode' filepath='drivers/gpu/drm/drm_mm.c' line='522' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_mm_print' mangled-name='drm_mm_print' filepath='drivers/gpu/drm/drm_mm.c' line='1022' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_print'>
+        <parameter type-id='402c0a9e' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='1022' column='1'/>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_mm.c' line='1022' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mm_remove_node' mangled-name='drm_mm_remove_node' filepath='drivers/gpu/drm/drm_mm.c' line='630' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_remove_node'>
+        <parameter type-id='6368b074' name='node' filepath='drivers/gpu/drm/drm_mm.c' line='630' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mm_takedown' mangled-name='drm_mm_takedown' filepath='include/drm/drm_mm.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_takedown'>
+        <parameter type-id='0ee978f1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_config_cleanup' mangled-name='drm_mode_config_cleanup' filepath='drivers/gpu/drm/drm_mode_config.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_cleanup'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_config.c' line='477' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_config_helper_resume' mangled-name='drm_mode_config_helper_resume' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_helper_resume'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='231' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_mode_config_helper_suspend' mangled-name='drm_mode_config_helper_suspend' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_helper_suspend'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='195' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_mode_config_reset' mangled-name='drm_mode_config_reset' filepath='include/drm/drm_mode_config.h' line='967' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_reset'>
+        <parameter type-id='8898134d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_convert_to_umode' mangled-name='drm_mode_convert_to_umode' filepath='include/drm/drm_modes.h' line='429' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_convert_to_umode'>
+        <parameter type-id='1bd40de0'/>
+        <parameter type-id='745b39e8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_copy' mangled-name='drm_mode_copy' filepath='include/drm/drm_modes.h' line='472' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_copy'>
+        <parameter type-id='11e02f83'/>
+        <parameter type-id='745b39e8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_debug_printmodeline' mangled-name='drm_mode_debug_printmodeline' filepath='include/drm/drm_modes.h' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_debug_printmodeline'>
+        <parameter type-id='745b39e8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_destroy' mangled-name='drm_mode_destroy' filepath='include/drm/drm_modes.h' line='428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_destroy'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='11e02f83'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_duplicate' mangled-name='drm_mode_duplicate' filepath='include/drm/drm_modes.h' line='474' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_duplicate'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='745b39e8'/>
+        <return type-id='11e02f83'/>
+      </function-decl>
+      <function-decl name='drm_mode_equal' mangled-name='drm_mode_equal' filepath='drivers/gpu/drm/drm_modes.c' line='1024' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_equal'>
+        <parameter type-id='745b39e8' name='mode1' filepath='drivers/gpu/drm/drm_modes.c' line='1024' column='1'/>
+        <parameter type-id='745b39e8' name='mode2' filepath='drivers/gpu/drm/drm_modes.c' line='1025' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_mode_equal_no_clocks' mangled-name='drm_mode_equal_no_clocks' filepath='drivers/gpu/drm/drm_modes.c' line='1047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_equal_no_clocks'>
+        <parameter type-id='745b39e8' name='mode1' filepath='drivers/gpu/drm/drm_modes.c' line='1047' column='1'/>
+        <parameter type-id='745b39e8' name='mode2' filepath='drivers/gpu/drm/drm_modes.c' line='1048' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_mode_object_find' mangled-name='drm_mode_object_find' filepath='drivers/gpu/drm/drm_mode_object.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_find'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_object.c' line='173' column='1'/>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_mode_object.c' line='174' column='1'/>
+        <parameter type-id='8f92235e' name='id' filepath='drivers/gpu/drm/drm_mode_object.c' line='175' column='1'/>
+        <parameter type-id='8f92235e' name='type' filepath='drivers/gpu/drm/drm_mode_object.c' line='175' column='1'/>
+        <return type-id='c5417630'/>
+      </function-decl>
+      <function-decl name='drm_mode_object_get' mangled-name='drm_mode_object_get' filepath='include/drm/drm_mode_object.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_get'>
+        <parameter type-id='c5417630'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_object_put' mangled-name='drm_mode_object_put' filepath='include/drm/drm_mode_object.h' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_put'>
+        <parameter type-id='c5417630'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_probed_add' mangled-name='drm_mode_probed_add' filepath='include/drm/drm_modes.h' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_probed_add'>
+        <parameter type-id='4db02c58'/>
+        <parameter type-id='11e02f83'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_mode_vrefresh' mangled-name='drm_mode_vrefresh' filepath='include/drm/drm_modes.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_vrefresh'>
+        <parameter type-id='745b39e8'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_modeset_acquire_fini' mangled-name='drm_modeset_acquire_fini' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_acquire_fini'>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='214' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_modeset_acquire_init' mangled-name='drm_modeset_acquire_init' filepath='include/drm/drm_modeset_lock.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_acquire_init'>
+        <parameter type-id='d1499e71'/>
+        <parameter type-id='8f92235e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_modeset_backoff' mangled-name='drm_modeset_backoff' filepath='include/drm/drm_modeset_lock.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_backoff'>
+        <parameter type-id='d1499e71'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_modeset_drop_locks' mangled-name='drm_modeset_drop_locks' filepath='include/drm/drm_modeset_lock.h' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_drop_locks'>
+        <parameter type-id='d1499e71'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_modeset_lock' mangled-name='drm_modeset_lock' filepath='include/drm/drm_modeset_lock.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock'>
+        <parameter type-id='b4b06bb8'/>
+        <parameter type-id='d1499e71'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_modeset_lock_all' mangled-name='drm_modeset_lock_all' filepath='include/drm/drm_modeset_lock.h' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all'>
+        <parameter type-id='8898134d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_modeset_lock_all_ctx' mangled-name='drm_modeset_lock_all_ctx' filepath='include/drm/drm_modeset_lock.h' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all_ctx'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='d1499e71'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_modeset_lock_init' mangled-name='drm_modeset_lock_init' filepath='include/drm/drm_modeset_lock.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_init'>
+        <parameter type-id='b4b06bb8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_modeset_unlock' mangled-name='drm_modeset_unlock' filepath='include/drm/drm_modeset_lock.h' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock'>
+        <parameter type-id='b4b06bb8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_modeset_unlock_all' mangled-name='drm_modeset_unlock_all' filepath='include/drm/drm_modeset_lock.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock_all'>
+        <parameter type-id='8898134d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_object_attach_property' mangled-name='drm_object_attach_property' filepath='include/drm/drm_mode_object.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_object_attach_property'>
+        <parameter type-id='c5417630'/>
+        <parameter type-id='26ea5d4c'/>
+        <parameter type-id='9c313c2d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_of_component_match_add' mangled-name='drm_of_component_match_add' filepath='drivers/gpu/drm/drm_of.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_of_component_match_add'>
+        <parameter type-id='fa0b179b' name='master' filepath='drivers/gpu/drm/drm_of.c' line='91' column='1'/>
+        <parameter type-id='3630c5f2' name='matchptr' filepath='drivers/gpu/drm/drm_of.c' line='92' column='1'/>
+        <parameter type-id='92d15ae9' name='compare' filepath='drivers/gpu/drm/drm_of.c' line='93' column='1'/>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/gpu/drm/drm_of.c' line='94' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_of_find_possible_crtcs' mangled-name='drm_of_find_possible_crtcs' filepath='drivers/gpu/drm/drm_of.c' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_of_find_possible_crtcs'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_of.c' line='62' column='1'/>
+        <parameter type-id='9a537bbe' name='port' filepath='drivers/gpu/drm/drm_of.c' line='63' column='1'/>
+        <return type-id='8f92235e'/>
+      </function-decl>
+      <function-decl name='drm_open' mangled-name='drm_open' filepath='drivers/gpu/drm/drm_file.c' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_open'>
+        <parameter type-id='7e666abe' name='inode' filepath='drivers/gpu/drm/drm_file.c' line='410' column='1'/>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='410' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_panel_add' mangled-name='drm_panel_add' filepath='drivers/gpu/drm/drm_panel.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_add'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='74' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_panel_disable' mangled-name='drm_panel_disable' filepath='include/drm/drm_panel.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_disable'>
+        <parameter type-id='c5491077'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_panel_enable' mangled-name='drm_panel_enable' filepath='include/drm/drm_panel.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_enable'>
+        <parameter type-id='c5491077'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_panel_get_modes' mangled-name='drm_panel_get_modes' filepath='include/drm/drm_panel.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_get_modes'>
+        <parameter type-id='c5491077'/>
+        <parameter type-id='4db02c58'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_panel_init' mangled-name='drm_panel_init' filepath='drivers/gpu/drm/drm_panel.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_init'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='57' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpu/drm/drm_panel.c' line='57' column='1'/>
+        <parameter type-id='cda6c21a' name='funcs' filepath='drivers/gpu/drm/drm_panel.c' line='58' column='1'/>
+        <parameter type-id='95e97e5e' name='connector_type' filepath='drivers/gpu/drm/drm_panel.c' line='58' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_panel_prepare' mangled-name='drm_panel_prepare' filepath='include/drm/drm_panel.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_prepare'>
+        <parameter type-id='c5491077'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_panel_remove' mangled-name='drm_panel_remove' filepath='drivers/gpu/drm/drm_panel.c' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_remove'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='88' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_panel_unprepare' mangled-name='drm_panel_unprepare' filepath='include/drm/drm_panel.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_unprepare'>
+        <parameter type-id='c5491077'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_plane_cleanup' mangled-name='drm_plane_cleanup' filepath='include/drm/drm_plane.h' line='747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_cleanup'>
+        <parameter type-id='a6711537'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_plane_create_alpha_property' mangled-name='drm_plane_create_alpha_property' filepath='drivers/gpu/drm/drm_blend.c' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_alpha_property'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_blend.c' line='212' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_plane_create_blend_mode_property' mangled-name='drm_plane_create_blend_mode_property' filepath='drivers/gpu/drm/drm_blend.c' line='565' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_blend_mode_property'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_blend.c' line='565' column='1'/>
+        <parameter type-id='f0981eeb' name='supported_modes' filepath='drivers/gpu/drm/drm_blend.c' line='566' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_plane_create_rotation_property' mangled-name='drm_plane_create_rotation_property' filepath='drivers/gpu/drm/drm_blend.c' line='265' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_rotation_property'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_blend.c' line='265' column='1'/>
+        <parameter type-id='f0981eeb' name='rotation' filepath='drivers/gpu/drm/drm_blend.c' line='266' column='1'/>
+        <parameter type-id='f0981eeb' name='supported_rotations' filepath='drivers/gpu/drm/drm_blend.c' line='267' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_plane_create_zpos_immutable_property' mangled-name='drm_plane_create_zpos_immutable_property' filepath='drivers/gpu/drm/drm_blend.c' line='401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_zpos_immutable_property'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_blend.c' line='401' column='1'/>
+        <parameter type-id='f0981eeb' name='zpos' filepath='drivers/gpu/drm/drm_blend.c' line='402' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_plane_create_zpos_property' mangled-name='drm_plane_create_zpos_property' filepath='drivers/gpu/drm/drm_blend.c' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_zpos_property'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_blend.c' line='362' column='1'/>
+        <parameter type-id='f0981eeb' name='zpos' filepath='drivers/gpu/drm/drm_blend.c' line='363' column='1'/>
+        <parameter type-id='f0981eeb' name='min' filepath='drivers/gpu/drm/drm_blend.c' line='364' column='1'/>
+        <parameter type-id='f0981eeb' name='max' filepath='drivers/gpu/drm/drm_blend.c' line='364' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_plane_enable_fb_damage_clips' mangled-name='drm_plane_enable_fb_damage_clips' filepath='drivers/gpu/drm/drm_damage_helper.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_enable_fb_damage_clips'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_damage_helper.c' line='96' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_poll' mangled-name='drm_poll' filepath='drivers/gpu/drm/drm_file.c' line='654' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_poll'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='654' column='1'/>
+        <parameter type-id='f0acc909' name='wait' filepath='drivers/gpu/drm/drm_file.c' line='654' column='1'/>
+        <return type-id='8f254b08'/>
+      </function-decl>
+      <function-decl name='drm_prime_gem_destroy' mangled-name='drm_prime_gem_destroy' filepath='drivers/gpu/drm/drm_prime.c' line='1054' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_prime_gem_destroy'>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_prime.c' line='1054' column='1'/>
+        <parameter type-id='4adb0e6a' name='sg' filepath='drivers/gpu/drm/drm_prime.c' line='1054' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_prime_pages_to_sg' mangled-name='drm_prime_pages_to_sg' filepath='drivers/gpu/drm/drm_prime.c' line='830' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_prime_pages_to_sg'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_prime.c' line='830' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='drivers/gpu/drm/drm_prime.c' line='831' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_pages' filepath='drivers/gpu/drm/drm_prime.c' line='831' column='1'/>
+        <return type-id='4adb0e6a'/>
+      </function-decl>
+      <function-decl name='drm_prime_sg_to_page_addr_arrays' mangled-name='drm_prime_sg_to_page_addr_arrays' filepath='drivers/gpu/drm/drm_prime.c' line='1019' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_prime_sg_to_page_addr_arrays'>
+        <parameter type-id='4adb0e6a' name='sgt' filepath='drivers/gpu/drm/drm_prime.c' line='1019' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='drivers/gpu/drm/drm_prime.c' line='1019' column='1'/>
+        <parameter type-id='e835b5d8' name='addrs' filepath='drivers/gpu/drm/drm_prime.c' line='1020' column='1'/>
+        <parameter type-id='95e97e5e' name='max_entries' filepath='drivers/gpu/drm/drm_prime.c' line='1020' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_printf' mangled-name='drm_printf' filepath='include/drm/drm_print.h' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_printf'>
+        <parameter type-id='7ac48c21'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_property_blob_get' mangled-name='drm_property_blob_get' filepath='drivers/gpu/drm/drm_property.c' line='634' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_blob_get'>
+        <parameter type-id='c4126d52' name='blob' filepath='drivers/gpu/drm/drm_property.c' line='634' column='1'/>
+        <return type-id='c4126d52'/>
+      </function-decl>
+      <function-decl name='drm_property_blob_put' mangled-name='drm_property_blob_put' filepath='include/drm/drm_property.h' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_blob_put'>
+        <parameter type-id='c4126d52'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_property_create' mangled-name='drm_property_create' filepath='include/drm/drm_property.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='26ea5d4c'/>
+      </function-decl>
+      <function-decl name='drm_property_create_bitmask' mangled-name='drm_property_create_bitmask' filepath='include/drm/drm_property.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bitmask'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b807105c'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='9c313c2d'/>
+        <return type-id='26ea5d4c'/>
+      </function-decl>
+      <function-decl name='drm_property_create_blob' mangled-name='drm_property_create_blob' filepath='include/drm/drm_property.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_blob'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='c4126d52'/>
+      </function-decl>
+      <function-decl name='drm_property_create_bool' mangled-name='drm_property_create_bool' filepath='include/drm/drm_property.h' line='264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bool'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='26ea5d4c'/>
+      </function-decl>
+      <function-decl name='drm_property_create_enum' mangled-name='drm_property_create_enum' filepath='include/drm/drm_property.h' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_enum'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b807105c'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='26ea5d4c'/>
+      </function-decl>
+      <function-decl name='drm_property_create_range' mangled-name='drm_property_create_range' filepath='include/drm/drm_property.h' line='255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_range'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='9c313c2d'/>
+        <parameter type-id='9c313c2d'/>
+        <return type-id='26ea5d4c'/>
+      </function-decl>
+      <function-decl name='drm_property_create_signed_range' mangled-name='drm_property_create_signed_range' filepath='drivers/gpu/drm/drm_property.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_signed_range'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='305' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/gpu/drm/drm_property.c' line='306' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_property.c' line='306' column='1'/>
+        <parameter type-id='9da381c4' name='min' filepath='drivers/gpu/drm/drm_property.c' line='307' column='1'/>
+        <parameter type-id='9da381c4' name='max' filepath='drivers/gpu/drm/drm_property.c' line='307' column='1'/>
+        <return type-id='26ea5d4c'/>
+      </function-decl>
+      <function-decl name='drm_property_lookup_blob' mangled-name='drm_property_lookup_blob' filepath='drivers/gpu/drm/drm_property.c' line='653' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_lookup_blob'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='653' column='1'/>
+        <parameter type-id='8f92235e' name='id' filepath='drivers/gpu/drm/drm_property.c' line='654' column='1'/>
+        <return type-id='c4126d52'/>
+      </function-decl>
+      <function-decl name='drm_property_replace_blob' mangled-name='drm_property_replace_blob' filepath='include/drm/drm_property.h' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_replace_blob'>
+        <parameter type-id='210253e8'/>
+        <parameter type-id='c4126d52'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_puts' mangled-name='drm_puts' filepath='drivers/gpu/drm/drm_print.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_puts'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='183' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='drivers/gpu/drm/drm_print.c' line='183' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_read' mangled-name='drm_read' filepath='drivers/gpu/drm/drm_file.c' line='569' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_read'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='569' column='1'/>
+        <parameter type-id='26a90f95' name='buffer' filepath='drivers/gpu/drm/drm_file.c' line='569' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='drivers/gpu/drm/drm_file.c' line='570' column='1'/>
+        <parameter type-id='b53e8dbb' name='offset' filepath='drivers/gpu/drm/drm_file.c' line='570' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='drm_rect_calc_hscale' mangled-name='drm_rect_calc_hscale' filepath='include/drm/drm_rect.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_calc_hscale'>
+        <parameter type-id='7d69a4de'/>
+        <parameter type-id='7d69a4de'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_rect_calc_vscale' mangled-name='drm_rect_calc_vscale' filepath='include/drm/drm_rect.h' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_calc_vscale'>
+        <parameter type-id='7d69a4de'/>
+        <parameter type-id='7d69a4de'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_rect_clip_scaled' mangled-name='drm_rect_clip_scaled' filepath='include/drm/drm_rect.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_clip_scaled'>
+        <parameter type-id='c91d6c11'/>
+        <parameter type-id='c91d6c11'/>
+        <parameter type-id='7d69a4de'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_rect_intersect' mangled-name='drm_rect_intersect' filepath='include/drm/drm_rect.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_intersect'>
+        <parameter type-id='c91d6c11'/>
+        <parameter type-id='7d69a4de'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='drm_release' mangled-name='drm_release' filepath='drivers/gpu/drm/drm_file.c' line='484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_release'>
+        <parameter type-id='7e666abe' name='inode' filepath='drivers/gpu/drm/drm_file.c' line='484' column='1'/>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/gpu/drm/drm_file.c' line='484' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_rotation_simplify' mangled-name='drm_rotation_simplify' filepath='drivers/gpu/drm/drm_blend.c' line='318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rotation_simplify'>
+        <parameter type-id='f0981eeb' name='rotation' filepath='drivers/gpu/drm/drm_blend.c' line='318' column='1'/>
+        <parameter type-id='f0981eeb' name='supported_rotations' filepath='drivers/gpu/drm/drm_blend.c' line='319' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='drm_self_refresh_helper_alter_state' mangled-name='drm_self_refresh_helper_alter_state' filepath='include/drm/drm_self_refresh_helper.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_self_refresh_helper_alter_state'>
+        <parameter type-id='e3dd029e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_send_event' mangled-name='drm_send_event' filepath='drivers/gpu/drm/drm_file.c' line='879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_send_event'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_file.c' line='879' column='1'/>
+        <parameter type-id='16ab0351' name='e' filepath='drivers/gpu/drm/drm_file.c' line='879' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_send_event_locked' mangled-name='drm_send_event_locked' filepath='drivers/gpu/drm/drm_file.c' line='858' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_send_event_locked'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_file.c' line='858' column='1'/>
+        <parameter type-id='16ab0351' name='e' filepath='drivers/gpu/drm/drm_file.c' line='858' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_set_preferred_mode' mangled-name='drm_set_preferred_mode' filepath='drivers/gpu/drm/drm_edid.c' line='5453' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_set_preferred_mode'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_edid.c' line='5453' column='1'/>
+        <parameter type-id='95e97e5e' name='hpref' filepath='drivers/gpu/drm/drm_edid.c' line='5454' column='1'/>
+        <parameter type-id='95e97e5e' name='vpref' filepath='drivers/gpu/drm/drm_edid.c' line='5454' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_simple_encoder_init' mangled-name='drm_simple_encoder_init' filepath='drivers/gpu/drm/drm_simple_kms_helper.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_simple_encoder_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_simple_kms_helper.c' line='64' column='1'/>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_simple_kms_helper.c' line='65' column='1'/>
+        <parameter type-id='95e97e5e' name='encoder_type' filepath='drivers/gpu/drm/drm_simple_kms_helper.c' line='66' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_state_dump' mangled-name='drm_state_dump' filepath='drivers/gpu/drm/drm_atomic.c' line='1622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_state_dump'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic.c' line='1622' column='1'/>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_atomic.c' line='1622' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_syncobj_add_point' mangled-name='drm_syncobj_add_point' filepath='drivers/gpu/drm/drm_syncobj.c' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_syncobj_add_point'>
+        <parameter type-id='919f23a5' name='syncobj' filepath='drivers/gpu/drm/drm_syncobj.c' line='285' column='1'/>
+        <parameter type-id='e7ca900d' name='chain' filepath='drivers/gpu/drm/drm_syncobj.c' line='286' column='1'/>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/gpu/drm/drm_syncobj.c' line='287' column='1'/>
+        <parameter type-id='9c313c2d' name='point' filepath='drivers/gpu/drm/drm_syncobj.c' line='288' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_syncobj_find' mangled-name='drm_syncobj_find' filepath='drivers/gpu/drm/drm_syncobj.c' line='222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_syncobj_find'>
+        <parameter type-id='9e99ecc1' name='file_private' filepath='drivers/gpu/drm/drm_syncobj.c' line='222' column='1'/>
+        <parameter type-id='19c2251e' name='handle' filepath='drivers/gpu/drm/drm_syncobj.c' line='223' column='1'/>
+        <return type-id='919f23a5'/>
+      </function-decl>
+      <function-decl name='drm_syncobj_find_fence' mangled-name='drm_syncobj_find_fence' filepath='drivers/gpu/drm/drm_syncobj.c' line='378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_syncobj_find_fence'>
+        <parameter type-id='9e99ecc1' name='file_private' filepath='drivers/gpu/drm/drm_syncobj.c' line='378' column='1'/>
+        <parameter type-id='19c2251e' name='handle' filepath='drivers/gpu/drm/drm_syncobj.c' line='379' column='1'/>
+        <parameter type-id='91ce1af9' name='point' filepath='drivers/gpu/drm/drm_syncobj.c' line='379' column='1'/>
+        <parameter type-id='91ce1af9' name='flags' filepath='drivers/gpu/drm/drm_syncobj.c' line='379' column='1'/>
+        <parameter type-id='be937eab' name='fence' filepath='drivers/gpu/drm/drm_syncobj.c' line='380' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_syncobj_free' mangled-name='drm_syncobj_free' filepath='drivers/gpu/drm/drm_syncobj.c' line='456' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_syncobj_free'>
+        <parameter type-id='aa29ecab' name='kref' filepath='drivers/gpu/drm/drm_syncobj.c' line='456' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_syncobj_replace_fence' mangled-name='drm_syncobj_replace_fence' filepath='drivers/gpu/drm/drm_syncobj.c' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_syncobj_replace_fence'>
+        <parameter type-id='919f23a5' name='syncobj' filepath='drivers/gpu/drm/drm_syncobj.c' line='321' column='1'/>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/gpu/drm/drm_syncobj.c' line='322' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_sysfs_hotplug_event' mangled-name='drm_sysfs_hotplug_event' filepath='include/drm/drm_sysfs.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_sysfs_hotplug_event'>
+        <parameter type-id='8898134d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_universal_plane_init' mangled-name='drm_universal_plane_init' filepath='include/drm/drm_plane.h' line='732' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_universal_plane_init'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='a6711537'/>
+        <parameter type-id='8f92235e'/>
+        <parameter type-id='cfd5d066'/>
+        <parameter type-id='a6798dcc'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='713a56f5'/>
+        <parameter type-id='5eed3c85'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_vblank_init' mangled-name='drm_vblank_init' filepath='drivers/gpu/drm/drm_vblank.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_vblank_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_vblank.c' line='517' column='1'/>
+        <parameter type-id='f0981eeb' name='num_crtcs' filepath='drivers/gpu/drm/drm_vblank.c' line='517' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_writeback_connector_init' mangled-name='drm_writeback_connector_init' filepath='drivers/gpu/drm/drm_writeback.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_writeback_connector_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_writeback.c' line='173' column='1'/>
+        <parameter type-id='2944961d' name='wb_connector' filepath='drivers/gpu/drm/drm_writeback.c' line='174' column='1'/>
+        <parameter type-id='3fb29739' name='con_funcs' filepath='drivers/gpu/drm/drm_writeback.c' line='175' column='1'/>
+        <parameter type-id='32162fa7' name='enc_helper_funcs' filepath='drivers/gpu/drm/drm_writeback.c' line='176' column='1'/>
+        <parameter type-id='aded214c' name='formats' filepath='drivers/gpu/drm/drm_writeback.c' line='177' column='1'/>
+        <parameter type-id='95e97e5e' name='n_formats' filepath='drivers/gpu/drm/drm_writeback.c' line='177' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='drm_writeback_queue_job' mangled-name='drm_writeback_queue_job' filepath='drivers/gpu/drm/drm_writeback.c' line='299' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_writeback_queue_job'>
+        <parameter type-id='2944961d' name='wb_connector' filepath='drivers/gpu/drm/drm_writeback.c' line='299' column='1'/>
+        <parameter type-id='249ef586' name='conn_state' filepath='drivers/gpu/drm/drm_writeback.c' line='300' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drm_writeback_signal_completion' mangled-name='drm_writeback_signal_completion' filepath='drivers/gpu/drm/drm_writeback.c' line='366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_writeback_signal_completion'>
+        <parameter type-id='2944961d' name='wb_connector' filepath='drivers/gpu/drm/drm_writeback.c' line='366' column='1'/>
+        <parameter type-id='95e97e5e' name='status' filepath='drivers/gpu/drm/drm_writeback.c' line='367' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='drmm_kmalloc' mangled-name='drmm_kmalloc' filepath='include/drm/drm_managed.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drmm_kmalloc'>
+        <parameter type-id='8898134d'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='drmm_mode_config_init' mangled-name='drmm_mode_config_init' filepath='drivers/gpu/drm/drm_mode_config.c' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drmm_mode_config_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_config.c' line='399' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dst_release' mangled-name='dst_release' filepath='include/net/dst.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dst_release'>
+        <parameter type-id='141b6427'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dump_backtrace' mangled-name='dump_backtrace' filepath='arch/arm64/include/asm/stacktrace.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_backtrace'>
+        <parameter type-id='4616a179'/>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dump_stack' mangled-name='dump_stack' filepath='lib/dump_stack.c' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_stack'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dup_iter' mangled-name='dup_iter' filepath='lib/iov_iter.c' line='1643' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dup_iter'>
+        <parameter type-id='4fa10f9e' name='new' filepath='lib/iov_iter.c' line='1643' column='1'/>
+        <parameter type-id='4fa10f9e' name='old' filepath='lib/iov_iter.c' line='1643' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='lib/iov_iter.c' line='1643' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='dw_handle_msi_irq' mangled-name='dw_handle_msi_irq' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dw_handle_msi_irq'>
+        <parameter type-id='d91dfd7a' name='pp' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='56' column='1'/>
+        <return type-id='4bdecfd7'/>
+      </function-decl>
+      <function-decl name='dw_pcie_host_init' mangled-name='dw_pcie_host_init' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dw_pcie_host_init'>
+        <parameter type-id='d91dfd7a' name='pp' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='293' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dw_pcie_msi_init' mangled-name='dw_pcie_msi_init' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dw_pcie_msi_init'>
+        <parameter type-id='d91dfd7a' name='pp' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='279' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dw_pcie_read' mangled-name='dw_pcie_read' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dw_pcie_read'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='99' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='99' column='1'/>
+        <parameter type-id='f9409001' name='val' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='99' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dw_pcie_setup_rc' mangled-name='dw_pcie_setup_rc' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dw_pcie_setup_rc'>
+        <parameter type-id='d91dfd7a' name='pp' filepath='drivers/pci/controller/dwc/pcie-designware-host.c' line='533' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='dw_pcie_write' mangled-name='dw_pcie_write' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dw_pcie_write'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='121' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='121' column='1'/>
+        <parameter type-id='19c2251e' name='val' filepath='drivers/pci/controller/dwc/pcie-designware.c' line='121' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dwc3_send_gadget_ep_cmd' mangled-name='dwc3_send_gadget_ep_cmd' filepath='drivers/usb/dwc3/gadget.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dwc3_send_gadget_ep_cmd'>
+        <parameter type-id='b31af340' name='dep' filepath='drivers/usb/dwc3/gadget.c' line='272' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='drivers/usb/dwc3/gadget.c' line='272' column='1'/>
+        <parameter type-id='f9841541' name='params' filepath='drivers/usb/dwc3/gadget.c' line='273' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='dwc3_stop_active_transfer' mangled-name='dwc3_stop_active_transfer' filepath='drivers/usb/dwc3/gadget.c' line='3578' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dwc3_stop_active_transfer'>
+        <parameter type-id='b31af340' name='dep' filepath='drivers/usb/dwc3/gadget.c' line='3578' column='1'/>
+        <parameter type-id='b50a4934' name='force' filepath='drivers/usb/dwc3/gadget.c' line='3578' column='1'/>
+        <parameter type-id='b50a4934' name='interrupt' filepath='drivers/usb/dwc3/gadget.c' line='3579' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='efi' type-id='f7bdefe9' mangled-name='efi' visibility='default' filepath='drivers/firmware/efi/efi.c' line='37' column='1' elf-symbol-id='efi'/>
+      <var-decl name='efi_tpm_final_log_size' type-id='95e97e5e' mangled-name='efi_tpm_final_log_size' visibility='default' filepath='drivers/firmware/efi/tpm.c' line='16' column='1' elf-symbol-id='efi_tpm_final_log_size'/>
+      <function-decl name='em_cpu_get' mangled-name='em_cpu_get' filepath='include/linux/energy_model.h' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='em_cpu_get'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='ce714046'/>
+      </function-decl>
+      <function-decl name='emergency_restart' mangled-name='emergency_restart' filepath='kernel/reboot.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='emergency_restart'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='enable_irq' mangled-name='enable_irq' filepath='include/linux/interrupt.h' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_irq'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='enable_percpu_irq' mangled-name='enable_percpu_irq' filepath='include/linux/interrupt.h' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_percpu_irq'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='errno_to_blk_status' mangled-name='errno_to_blk_status' filepath='include/linux/blkdev.h' line='980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='errno_to_blk_status'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='f4e2facd'/>
+      </function-decl>
+      <function-decl name='eth_commit_mac_addr_change' mangled-name='eth_commit_mac_addr_change' filepath='net/ethernet/eth.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_commit_mac_addr_change'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='308' column='1'/>
+        <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='308' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='eth_mac_addr' mangled-name='eth_mac_addr' filepath='include/linux/etherdevice.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_mac_addr'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='eth_platform_get_mac_address' mangled-name='eth_platform_get_mac_address' filepath='include/linux/etherdevice.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_platform_get_mac_address'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='8bff8096'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='eth_prepare_mac_addr_change' mangled-name='eth_prepare_mac_addr_change' filepath='net/ethernet/eth.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_prepare_mac_addr_change'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='291' column='1'/>
+        <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='291' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='eth_type_trans' mangled-name='eth_type_trans' filepath='include/linux/etherdevice.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_type_trans'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='84a5c3d4'/>
+      </function-decl>
+      <function-decl name='eth_validate_addr' mangled-name='eth_validate_addr' filepath='net/ethernet/eth.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_validate_addr'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='338' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ether_setup' mangled-name='ether_setup' filepath='include/linux/netdevice.h' line='4462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ether_setup'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ethtool_op_get_link' mangled-name='ethtool_op_get_link' filepath='include/linux/ethtool.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ethtool_op_get_link'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='ethtool_op_get_ts_info' mangled-name='ethtool_op_get_ts_info' filepath='net/ethtool/ioctl.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ethtool_op_get_ts_info'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethtool/ioctl.c' line='46' column='1'/>
+        <parameter type-id='fa058983' name='info' filepath='net/ethtool/ioctl.c' line='46' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ethtool_virtdev_set_link_ksettings' mangled-name='ethtool_virtdev_set_link_ksettings' filepath='net/ethtool/ioctl.c' line='611' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ethtool_virtdev_set_link_ksettings'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethtool/ioctl.c' line='611' column='1'/>
+        <parameter type-id='b2c34f11' name='cmd' filepath='net/ethtool/ioctl.c' line='612' column='1'/>
+        <parameter type-id='f9409001' name='dev_speed' filepath='net/ethtool/ioctl.c' line='613' column='1'/>
+        <parameter type-id='8bff8096' name='dev_duplex' filepath='net/ethtool/ioctl.c' line='613' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='event_triggers_call' mangled-name='event_triggers_call' filepath='include/linux/trace_events.h' line='589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='event_triggers_call'>
+        <parameter type-id='3d4ca6d2'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='3275e929'/>
+        <return type-id='21b4096c'/>
+      </function-decl>
+      <function-decl name='eventfd_ctx_fdget' mangled-name='eventfd_ctx_fdget' filepath='include/linux/eventfd.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_ctx_fdget'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='71f2e203'/>
+      </function-decl>
+      <function-decl name='eventfd_ctx_put' mangled-name='eventfd_ctx_put' filepath='include/linux/eventfd.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_ctx_put'>
+        <parameter type-id='71f2e203'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='eventfd_signal' mangled-name='eventfd_signal' filepath='include/linux/eventfd.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_signal'>
+        <parameter type-id='71f2e203'/>
+        <parameter type-id='d3130597'/>
+        <return type-id='d3130597'/>
+      </function-decl>
+      <function-decl name='extcon_get_edev_by_phandle' mangled-name='extcon_get_edev_by_phandle' filepath='include/linux/extcon.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_edev_by_phandle'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='c0d6fada'/>
+      </function-decl>
+      <function-decl name='extcon_get_property' mangled-name='extcon_get_property' filepath='drivers/extcon/extcon.c' line='615' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_property'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='615' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='615' column='1'/>
+        <parameter type-id='f0981eeb' name='prop' filepath='drivers/extcon/extcon.c' line='616' column='1'/>
+        <parameter type-id='50842338' name='prop_val' filepath='drivers/extcon/extcon.c' line='617' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='extcon_get_state' mangled-name='extcon_get_state' filepath='include/linux/extcon.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_state'>
+        <parameter type-id='c0d6fada'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='extcon_register_notifier' mangled-name='extcon_register_notifier' filepath='include/linux/extcon.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_register_notifier'>
+        <parameter type-id='c0d6fada'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='extcon_set_property' mangled-name='extcon_set_property' filepath='drivers/extcon/extcon.c' line='694' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_set_property'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='694' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='694' column='1'/>
+        <parameter type-id='f0981eeb' name='prop' filepath='drivers/extcon/extcon.c' line='695' column='1'/>
+        <parameter type-id='282b2805' name='prop_val' filepath='drivers/extcon/extcon.c' line='696' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='extcon_set_property_capability' mangled-name='extcon_set_property_capability' filepath='drivers/extcon/extcon.c' line='816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_set_property_capability'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='816' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='816' column='1'/>
+        <parameter type-id='f0981eeb' name='prop' filepath='drivers/extcon/extcon.c' line='817' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='extcon_set_state_sync' mangled-name='extcon_set_state_sync' filepath='drivers/extcon/extcon.c' line='577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_set_state_sync'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='577' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='577' column='1'/>
+        <parameter type-id='b50a4934' name='state' filepath='drivers/extcon/extcon.c' line='577' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='extcon_unregister_notifier' mangled-name='extcon_unregister_notifier' filepath='include/linux/extcon.h' line='201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_unregister_notifier'>
+        <parameter type-id='c0d6fada'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='failure_tracking' type-id='49a0ad34' mangled-name='failure_tracking' visibility='default' filepath='mm/page_pinner.c' line='61' column='1' elf-symbol-id='failure_tracking'/>
+      <function-decl name='fasync_helper' mangled-name='fasync_helper' filepath='include/linux/fs.h' line='1355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fasync_helper'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='77e79a4b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='dc750055'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='fd_install' mangled-name='fd_install' filepath='include/linux/file.h' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fd_install'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='77e79a4b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='fget' mangled-name='fget' filepath='include/linux/file.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fget'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='77e79a4b'/>
+      </function-decl>
+      <function-decl name='file_path' mangled-name='file_path' filepath='fs/open.c' line='927' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='file_path'>
+        <parameter type-id='77e79a4b' name='filp' filepath='fs/open.c' line='927' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/open.c' line='927' column='1'/>
+        <parameter type-id='95e97e5e' name='buflen' filepath='fs/open.c' line='927' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='filp_close' mangled-name='filp_close' filepath='include/linux/fs.h' line='2597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filp_close'>
+        <parameter type-id='77e79a4b'/>
+        <parameter type-id='bc5666d5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='filp_open_block' mangled-name='filp_open_block' filepath='fs/open.c' line='1164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filp_open_block'>
+        <parameter type-id='80f4b756' name='filename' filepath='fs/open.c' line='1164' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='fs/open.c' line='1164' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/open.c' line='1164' column='1'/>
+        <return type-id='77e79a4b'/>
+      </function-decl>
+      <function-decl name='find_extend_vma' mangled-name='find_extend_vma' filepath='include/linux/mm.h' line='2898' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_extend_vma'>
+        <parameter type-id='df4b7819'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='2ae08426'/>
+      </function-decl>
+      <function-decl name='find_get_pid' mangled-name='find_get_pid' filepath='include/linux/pid.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_get_pid'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='b94e5398'/>
+      </function-decl>
+      <function-decl name='find_last_bit' mangled-name='find_last_bit' filepath='include/linux/bitops.h' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_last_bit'>
+        <parameter type-id='f9b37274'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='find_next_bit' mangled-name='find_next_bit' filepath='include/asm-generic/bitops/find.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_next_bit'>
+        <parameter type-id='f9b37274'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='find_next_zero_bit' mangled-name='find_next_zero_bit' filepath='include/asm-generic/bitops/find.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_next_zero_bit'>
+        <parameter type-id='f9b37274'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='find_task_by_vpid' mangled-name='find_task_by_vpid' filepath='include/linux/sched.h' line='1799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_task_by_vpid'>
+        <parameter type-id='587f89d2'/>
+        <return type-id='f23e2572'/>
+      </function-decl>
+      <function-decl name='find_vma' mangled-name='find_vma' filepath='include/linux/mm.h' line='2817' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_vma'>
+        <parameter type-id='df4b7819'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='2ae08426'/>
+      </function-decl>
+      <function-decl name='finish_wait' mangled-name='finish_wait' filepath='include/linux/wait.h' line='1157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='finish_wait'>
+        <parameter type-id='3f8b2ed3'/>
+        <parameter type-id='db9d03e3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='firmware_request_nowarn' mangled-name='firmware_request_nowarn' filepath='drivers/base/firmware_loader/main.c' line='896' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='firmware_request_nowarn'>
+        <parameter type-id='6c2331f5' name='firmware' filepath='drivers/base/firmware_loader/main.c' line='896' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/firmware_loader/main.c' line='896' column='1'/>
+        <parameter type-id='fa0b179b' name='device' filepath='drivers/base/firmware_loader/main.c' line='897' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='flow_keys_basic_dissector' type-id='379be6ec' mangled-name='flow_keys_basic_dissector' visibility='default' filepath='net/core/flow_dissector.c' line='1796' column='1' elf-symbol-id='flow_keys_basic_dissector'/>
+      <function-decl name='flush_dcache_page' mangled-name='flush_dcache_page' filepath='arch/arm64/include/asm/cacheflush.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_dcache_page'>
+        <parameter type-id='02f11ed4'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='flush_delayed_work' mangled-name='flush_delayed_work' filepath='kernel/workqueue.c' line='3214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_delayed_work'>
+        <parameter type-id='1a7ee447' name='dwork' filepath='kernel/workqueue.c' line='3214' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='flush_work' mangled-name='flush_work' filepath='kernel/workqueue.c' line='3094' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_work'>
+        <parameter type-id='83c1bde6' name='work' filepath='kernel/workqueue.c' line='3094' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='flush_workqueue' mangled-name='flush_workqueue' filepath='include/linux/workqueue.h' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_workqueue'>
+        <parameter type-id='242e3d19'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='fpsimd_context_busy' type-id='b50a4934' mangled-name='fpsimd_context_busy' visibility='default' filepath='arch/arm64/kernel/fpsimd.c' line='166' column='1' elf-symbol-id='fpsimd_context_busy'/>
+      <function-decl name='fput' mangled-name='fput' filepath='fs/file_table.c' line='356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fput'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/file_table.c' line='356' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='frame_vector_create' mangled-name='frame_vector_create' filepath='mm/frame_vector.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='frame_vector_create'>
+        <parameter type-id='f0981eeb' name='nr_frames' filepath='mm/frame_vector.c' line='202' column='1'/>
+        <return type-id='d9fbdc06'/>
+      </function-decl>
+      <function-decl name='frame_vector_destroy' mangled-name='frame_vector_destroy' filepath='mm/frame_vector.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='frame_vector_destroy'>
+        <parameter type-id='d9fbdc06' name='vec' filepath='mm/frame_vector.c' line='234' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='frame_vector_to_pages' mangled-name='frame_vector_to_pages' filepath='mm/frame_vector.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='frame_vector_to_pages'>
+        <parameter type-id='d9fbdc06' name='vec' filepath='mm/frame_vector.c' line='153' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='free_candev' mangled-name='free_candev' filepath='drivers/net/can/dev/dev.c' line='800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_candev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='800' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='free_io_pgtable_ops' mangled-name='free_io_pgtable_ops' filepath='drivers/iommu/io-pgtable.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_io_pgtable_ops'>
+        <parameter type-id='bf4bdb64' name='ops' filepath='drivers/iommu/io-pgtable.c' line='59' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='free_irq' mangled-name='free_irq' filepath='include/linux/interrupt.h' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_irq'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='free_netdev' mangled-name='free_netdev' filepath='include/linux/netdevice.h' line='2920' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_netdev'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='free_pages' mangled-name='free_pages' filepath='include/linux/gfp.h' line='619' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='free_pages_exact' mangled-name='free_pages_exact' filepath='include/linux/gfp.h' line='609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages_exact'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='free_percpu' mangled-name='free_percpu' filepath='include/linux/percpu.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='free_percpu_irq' mangled-name='free_percpu_irq' filepath='include/linux/interrupt.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu_irq'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='freezing_slow_path' mangled-name='freezing_slow_path' filepath='include/linux/freezer.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freezing_slow_path'>
+        <parameter type-id='f23e2572'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='freq_qos_add_request' mangled-name='freq_qos_add_request' filepath='kernel/power/qos.c' line='531' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freq_qos_add_request'>
+        <parameter type-id='1351457a' name='qos' filepath='kernel/power/qos.c' line='531' column='1'/>
+        <parameter type-id='3fdf7ca3' name='req' filepath='kernel/power/qos.c' line='532' column='1'/>
+        <parameter type-id='1df5cca8' name='type' filepath='kernel/power/qos.c' line='533' column='1'/>
+        <parameter type-id='a7832498' name='value' filepath='kernel/power/qos.c' line='533' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='freq_qos_remove_request' mangled-name='freq_qos_remove_request' filepath='kernel/power/qos.c' line='595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freq_qos_remove_request'>
+        <parameter type-id='3fdf7ca3' name='req' filepath='kernel/power/qos.c' line='595' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='freq_qos_update_request' mangled-name='freq_qos_update_request' filepath='kernel/power/qos.c' line='568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freq_qos_update_request'>
+        <parameter type-id='3fdf7ca3' name='req' filepath='kernel/power/qos.c' line='568' column='1'/>
+        <parameter type-id='a7832498' name='new_value' filepath='kernel/power/qos.c' line='568' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='freq_reg_info' mangled-name='freq_reg_info' filepath='net/wireless/reg.c' line='1633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freq_reg_info'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/reg.c' line='1633' column='1'/>
+        <parameter type-id='19c2251e' name='center_freq' filepath='net/wireless/reg.c' line='1634' column='1'/>
+        <return type-id='cde95316'/>
+      </function-decl>
+      <var-decl name='fs_bio_set' type-id='dfa886b2' mangled-name='fs_bio_set' visibility='default' filepath='block/bio.c' line='48' column='1' elf-symbol-id='fs_bio_set'/>
+      <function-decl name='fsync_bdev' mangled-name='fsync_bdev' filepath='fs/block_dev.c' line='548' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fsync_bdev'>
+        <parameter type-id='b88dd945' name='bdev' filepath='fs/block_dev.c' line='548' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='full_name_hash' mangled-name='full_name_hash' filepath='fs/namei.c' line='2055' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='full_name_hash'>
+        <parameter type-id='eaa32e2f' name='salt' filepath='fs/namei.c' line='2055' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/namei.c' line='2055' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='fs/namei.c' line='2055' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='fwnode_get_name' mangled-name='fwnode_get_name' filepath='include/linux/property.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_get_name'>
+        <parameter type-id='7837cd88'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='fwnode_gpiod_get_index' mangled-name='fwnode_gpiod_get_index' filepath='drivers/gpio/gpiolib.c' line='3783' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_gpiod_get_index'>
+        <parameter type-id='4a935625' name='fwnode' filepath='drivers/gpio/gpiolib.c' line='3783' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3784' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/gpio/gpiolib.c' line='3784' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib.c' line='3785' column='1'/>
+        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib.c' line='3786' column='1'/>
+        <return type-id='26760480'/>
+      </function-decl>
+      <function-decl name='fwnode_handle_get' mangled-name='fwnode_handle_get' filepath='include/linux/property.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_get'>
+        <parameter type-id='4a935625'/>
+        <return type-id='4a935625'/>
+      </function-decl>
+      <function-decl name='fwnode_handle_put' mangled-name='fwnode_handle_put' filepath='include/linux/property.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_put'>
+        <parameter type-id='4a935625'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='fwnode_property_present' mangled-name='fwnode_property_present' filepath='drivers/base/property.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_property_present'>
+        <parameter type-id='7837cd88' name='fwnode' filepath='drivers/base/property.c' line='46' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='47' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='fwnode_property_read_string' mangled-name='fwnode_property_read_string' filepath='drivers/base/property.c' line='401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_property_read_string'>
+        <parameter type-id='7837cd88' name='fwnode' filepath='drivers/base/property.c' line='401' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='402' column='1'/>
+        <parameter type-id='7d3cd834' name='val' filepath='drivers/base/property.c' line='402' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='fwnode_property_read_u32_array' mangled-name='fwnode_property_read_u32_array' filepath='drivers/base/property.c' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_property_read_u32_array'>
+        <parameter type-id='7837cd88' name='fwnode' filepath='drivers/base/property.c' line='317' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='318' column='1'/>
+        <parameter type-id='f9409001' name='val' filepath='drivers/base/property.c' line='318' column='1'/>
+        <parameter type-id='b59d7dce' name='nval' filepath='drivers/base/property.c' line='318' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gcd' mangled-name='gcd' filepath='include/linux/gcd.h' line='7' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gcd'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='gen_pool_add_owner' mangled-name='gen_pool_add_owner' filepath='include/linux/genalloc.h' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_add_owner'>
+        <parameter type-id='75b9415a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='2522883d'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gen_pool_alloc_algo_owner' mangled-name='gen_pool_alloc_algo_owner' filepath='include/linux/genalloc.h' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_alloc_algo_owner'>
+        <parameter type-id='75b9415a'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='00278b91'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='63e171df'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='gen_pool_avail' mangled-name='gen_pool_avail' filepath='include/linux/genalloc.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_avail'>
+        <parameter type-id='75b9415a'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='gen_pool_create' mangled-name='gen_pool_create' filepath='include/linux/genalloc.h' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_create'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='75b9415a'/>
+      </function-decl>
+      <function-decl name='gen_pool_destroy' mangled-name='gen_pool_destroy' filepath='include/linux/genalloc.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_destroy'>
+        <parameter type-id='75b9415a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gen_pool_dma_alloc_align' mangled-name='gen_pool_dma_alloc_align' filepath='lib/genalloc.c' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_dma_alloc_align'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='394' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/genalloc.c' line='394' column='1'/>
+        <parameter type-id='e835b5d8' name='dma' filepath='lib/genalloc.c' line='395' column='1'/>
+        <parameter type-id='95e97e5e' name='align' filepath='lib/genalloc.c' line='395' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='gen_pool_dma_zalloc_align' mangled-name='gen_pool_dma_zalloc_align' filepath='lib/genalloc.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_dma_zalloc_align'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='465' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/genalloc.c' line='465' column='1'/>
+        <parameter type-id='e835b5d8' name='dma' filepath='lib/genalloc.c' line='466' column='1'/>
+        <parameter type-id='95e97e5e' name='align' filepath='lib/genalloc.c' line='466' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='gen_pool_first_fit_align' mangled-name='gen_pool_first_fit_align' filepath='lib/genalloc.c' line='663' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_first_fit_align'>
+        <parameter type-id='1d2c2b85' name='map' filepath='lib/genalloc.c' line='663' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='lib/genalloc.c' line='663' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='lib/genalloc.c' line='664' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='lib/genalloc.c' line='664' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/genalloc.c' line='664' column='1'/>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='665' column='1'/>
+        <parameter type-id='7359adad' name='start_addr' filepath='lib/genalloc.c' line='665' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='gen_pool_free_owner' mangled-name='gen_pool_free_owner' filepath='include/linux/genalloc.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_free_owner'>
+        <parameter type-id='75b9415a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='63e171df'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gen_pool_has_addr' mangled-name='gen_pool_has_addr' filepath='include/linux/genalloc.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_has_addr'>
+        <parameter type-id='75b9415a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='gen_pool_size' mangled-name='gen_pool_size' filepath='include/linux/genalloc.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_size'>
+        <parameter type-id='75b9415a'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='generic_delete_inode' mangled-name='generic_delete_inode' filepath='fs/inode.c' line='1600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_delete_inode'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/inode.c' line='1600' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='generic_device_group' mangled-name='generic_device_group' filepath='drivers/iommu/iommu.c' line='1384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_device_group'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1384' column='1'/>
+        <return type-id='0b19fc54'/>
+      </function-decl>
+      <function-decl name='generic_file_llseek' mangled-name='generic_file_llseek' filepath='fs/read_write.c' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_file_llseek'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/read_write.c' line='144' column='1'/>
+        <parameter type-id='69bf7bee' name='offset' filepath='fs/read_write.c' line='144' column='1'/>
+        <parameter type-id='95e97e5e' name='whence' filepath='fs/read_write.c' line='144' column='1'/>
+        <return type-id='69bf7bee'/>
+      </function-decl>
+      <function-decl name='generic_handle_irq' mangled-name='generic_handle_irq' filepath='include/linux/irqdesc.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_handle_irq'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='generic_iommu_put_resv_regions' mangled-name='generic_iommu_put_resv_regions' filepath='drivers/iommu/iommu.c' line='2816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_iommu_put_resv_regions'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2816' column='1'/>
+        <parameter type-id='e84b031a' name='list' filepath='drivers/iommu/iommu.c' line='2816' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='generic_mii_ioctl' mangled-name='generic_mii_ioctl' filepath='drivers/net/mii.c' line='584' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_mii_ioctl'>
+        <parameter type-id='f0150b1d' name='mii_if' filepath='drivers/net/mii.c' line='584' column='1'/>
+        <parameter type-id='eb5662e5' name='mii_data' filepath='drivers/net/mii.c' line='585' column='1'/>
+        <parameter type-id='95e97e5e' name='cmd' filepath='drivers/net/mii.c' line='585' column='1'/>
+        <parameter type-id='807869d3' name='duplex_chg_out' filepath='drivers/net/mii.c' line='586' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='genl_notify' mangled-name='genl_notify' filepath='net/netlink/genetlink.c' line='1461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_notify'>
+        <parameter type-id='63d7819b' name='family' filepath='net/netlink/genetlink.c' line='1461' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/netlink/genetlink.c' line='1461' column='1'/>
+        <parameter type-id='31b542ce' name='info' filepath='net/netlink/genetlink.c' line='1462' column='1'/>
+        <parameter type-id='19c2251e' name='group' filepath='net/netlink/genetlink.c' line='1462' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='net/netlink/genetlink.c' line='1462' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='genl_register_family' mangled-name='genl_register_family' filepath='include/net/genetlink.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_register_family'>
+        <parameter type-id='8f6b937a'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='genl_unregister_family' mangled-name='genl_unregister_family' filepath='include/net/genetlink.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_unregister_family'>
+        <parameter type-id='63d7819b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='genlmsg_put' mangled-name='genlmsg_put' filepath='include/net/genetlink.h' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genlmsg_put'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='63d7819b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f9b06939'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='get_cpu_device' mangled-name='get_cpu_device' filepath='include/linux/cpu.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_device'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='get_cpu_idle_time' mangled-name='get_cpu_idle_time' filepath='include/linux/cpufreq.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_idle_time'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='3df9fd28'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='get_cpu_idle_time_us' mangled-name='get_cpu_idle_time_us' filepath='kernel/time/tick-sched.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_idle_time_us'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/time/tick-sched.c' line='594' column='1'/>
+        <parameter type-id='3df9fd28' name='last_update_time' filepath='kernel/time/tick-sched.c' line='594' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='get_cpu_iowait_time_us' mangled-name='get_cpu_iowait_time_us' filepath='kernel/time/tick-sched.c' line='635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_iowait_time_us'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/time/tick-sched.c' line='635' column='1'/>
+        <parameter type-id='3df9fd28' name='last_update_time' filepath='kernel/time/tick-sched.c' line='635' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='get_device' mangled-name='get_device' filepath='include/linux/device.h' line='930' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_device'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='get_device_system_crosststamp' mangled-name='get_device_system_crosststamp' filepath='kernel/time/timekeeping.c' line='1191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_device_system_crosststamp'>
+        <parameter type-id='d5d36d38' name='get_time_fn' filepath='kernel/time/timekeeping.c' line='1191' column='1'/>
+        <parameter type-id='eaa32e2f' name='ctx' filepath='kernel/time/timekeeping.c' line='1195' column='1'/>
+        <parameter type-id='9e33b18d' name='history_begin' filepath='kernel/time/timekeeping.c' line='1196' column='1'/>
+        <parameter type-id='587b4de3' name='xtstamp' filepath='kernel/time/timekeeping.c' line='1197' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_governor_parent_kobj' mangled-name='get_governor_parent_kobj' filepath='include/linux/cpufreq.h' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_governor_parent_kobj'>
+        <parameter type-id='343c3ae4'/>
+        <return type-id='d30bdc51'/>
+      </function-decl>
+      <function-decl name='get_next_ino' mangled-name='get_next_ino' filepath='include/linux/fs.h' line='2977' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_next_ino'>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='get_pid_task' mangled-name='get_pid_task' filepath='include/linux/pid.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_pid_task'>
+        <parameter type-id='b94e5398'/>
+        <parameter type-id='ce78cf46'/>
+        <return type-id='f23e2572'/>
+      </function-decl>
+      <function-decl name='get_random_bytes' mangled-name='get_random_bytes' filepath='include/linux/random.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_bytes'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='get_random_bytes_arch' mangled-name='get_random_bytes_arch' filepath='include/linux/random.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_bytes_arch'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_random_u32' mangled-name='get_random_u32' filepath='include/linux/random.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_u32'>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='get_sg_io_hdr' mangled-name='get_sg_io_hdr' filepath='block/scsi_ioctl.c' line='591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_sg_io_hdr'>
+        <parameter type-id='75d4b09d' name='hdr' filepath='block/scsi_ioctl.c' line='591' column='1'/>
+        <parameter type-id='eaa32e2f' name='argp' filepath='block/scsi_ioctl.c' line='591' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_task_cred' mangled-name='get_task_cred' filepath='kernel/cred.c' line='196' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_task_cred'>
+        <parameter type-id='f23e2572' name='task' filepath='kernel/cred.c' line='196' column='1'/>
+        <return type-id='bc33861a'/>
+      </function-decl>
+      <function-decl name='get_thermal_instance' mangled-name='get_thermal_instance' filepath='drivers/thermal/thermal_helpers.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_thermal_instance'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_helpers.c' line='45' column='1'/>
+        <parameter type-id='2feec21f' name='cdev' filepath='drivers/thermal/thermal_helpers.c' line='46' column='1'/>
+        <parameter type-id='95e97e5e' name='trip' filepath='drivers/thermal/thermal_helpers.c' line='46' column='1'/>
+        <return type-id='7bf821a0'/>
+      </function-decl>
+      <function-decl name='get_tree_single' mangled-name='get_tree_single' filepath='fs/super.c' line='1225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_tree_single'>
+        <parameter type-id='5760dcb0' name='fc' filepath='fs/super.c' line='1225' column='1'/>
+        <parameter type-id='30341fa1' name='fill_super' filepath='fs/super.c' line='1226' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_unused_fd_flags' mangled-name='get_unused_fd_flags' filepath='include/linux/file.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_unused_fd_flags'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='include/linux/mm.h' line='1884' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='9f93c9da'/>
+        <parameter type-id='8b6fdee4'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='include/linux/mm.h' line='1899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='9f93c9da'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='include/linux/mm.h' line='1876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
+        <parameter type-id='df4b7819'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='9f93c9da'/>
+        <parameter type-id='8b6fdee4'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='get_vaddr_frames' mangled-name='get_vaddr_frames' filepath='mm/frame_vector.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_vaddr_frames'>
+        <parameter type-id='7359adad' name='start' filepath='mm/frame_vector.c' line='34' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_frames' filepath='mm/frame_vector.c' line='34' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/frame_vector.c' line='35' column='1'/>
+        <parameter type-id='d9fbdc06' name='vec' filepath='mm/frame_vector.c' line='35' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_zeroed_page' mangled-name='get_zeroed_page' filepath='include/linux/gfp.h' line='606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_zeroed_page'>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <var-decl name='gic_nonsecure_priorities' type-id='237c0d27' mangled-name='gic_nonsecure_priorities' visibility='default' filepath='drivers/irqchip/irq-gic-v3.c' line='92' column='1' elf-symbol-id='gic_nonsecure_priorities'/>
+      <function-decl name='glob_match' mangled-name='glob_match' filepath='include/linux/glob.h' line='8' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='glob_match'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='gnss_allocate_device' mangled-name='gnss_allocate_device' filepath='drivers/gnss/core.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_allocate_device'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/gnss/core.c' line='224' column='1'/>
+        <return type-id='94411a61'/>
+      </function-decl>
+      <function-decl name='gnss_deregister_device' mangled-name='gnss_deregister_device' filepath='drivers/gnss/core.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_deregister_device'>
+        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='301' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gnss_insert_raw' mangled-name='gnss_insert_raw' filepath='drivers/gnss/core.c' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_insert_raw'>
+        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='320' column='1'/>
+        <parameter type-id='354f7eb9' name='buf' filepath='drivers/gnss/core.c' line='320' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='drivers/gnss/core.c' line='321' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gnss_put_device' mangled-name='gnss_put_device' filepath='drivers/gnss/core.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_put_device'>
+        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='277' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gnss_register_device' mangled-name='gnss_register_device' filepath='drivers/gnss/core.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_register_device'>
+        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='283' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gov_attr_set_get' mangled-name='gov_attr_set_get' filepath='include/linux/cpufreq.h' line='647' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_get'>
+        <parameter type-id='902fed1a'/>
+        <parameter type-id='e84b031a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gov_attr_set_init' mangled-name='gov_attr_set_init' filepath='include/linux/cpufreq.h' line='646' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_init'>
+        <parameter type-id='902fed1a'/>
+        <parameter type-id='e84b031a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gov_attr_set_put' mangled-name='gov_attr_set_put' filepath='include/linux/cpufreq.h' line='648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_put'>
+        <parameter type-id='902fed1a'/>
+        <parameter type-id='e84b031a'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <var-decl name='governor_sysfs_ops' type-id='0f840455' mangled-name='governor_sysfs_ops' visibility='default' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='42' column='1' elf-symbol-id='governor_sysfs_ops'/>
+      <function-decl name='gpio_free' mangled-name='gpio_free' filepath='drivers/gpio/gpiolib-legacy.c' line='9' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_free'>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-legacy.c' line='9' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpio_request' mangled-name='gpio_request' filepath='include/asm-generic/gpio.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpio_request_one' mangled-name='gpio_request_one' filepath='include/asm-generic/gpio.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request_one'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpio_to_desc' mangled-name='gpio_to_desc' filepath='include/linux/gpio/consumer.h' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_to_desc'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='26760480'/>
+      </function-decl>
+      <function-decl name='gpiochip_add_data_with_key' mangled-name='gpiochip_add_data_with_key' filepath='include/linux/gpio/driver.h' line='501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_add_data_with_key'>
+        <parameter type-id='e324928d'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='a57283f9'/>
+        <parameter type-id='a57283f9'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiochip_add_pin_range' mangled-name='gpiochip_add_pin_range' filepath='include/linux/gpio/driver.h' line='736' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_add_pin_range'>
+        <parameter type-id='e324928d'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiochip_generic_config' mangled-name='gpiochip_generic_config' filepath='drivers/gpio/gpiolib.c' line='1839' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_generic_config'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='1839' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='1839' column='1'/>
+        <parameter type-id='7359adad' name='config' filepath='drivers/gpio/gpiolib.c' line='1840' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiochip_generic_free' mangled-name='gpiochip_generic_free' filepath='drivers/gpio/gpiolib.c' line='1822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_generic_free'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='1822' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='1822' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiochip_generic_request' mangled-name='gpiochip_generic_request' filepath='drivers/gpio/gpiolib.c' line='1806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_generic_request'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='1806' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='1806' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiochip_get_data' mangled-name='gpiochip_get_data' filepath='drivers/gpio/gpiolib.c' line='803' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_get_data'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='803' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='gpiochip_line_is_valid' mangled-name='gpiochip_line_is_valid' filepath='drivers/gpio/gpiolib.c' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_line_is_valid'>
+        <parameter type-id='a171e66c' name='gc' filepath='drivers/gpio/gpiolib.c' line='462' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='463' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='gpiochip_lock_as_irq' mangled-name='gpiochip_lock_as_irq' filepath='include/linux/gpio/driver.h' line='778' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_lock_as_irq'>
+        <parameter type-id='e324928d'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiochip_populate_parent_fwspec_fourcell' mangled-name='gpiochip_populate_parent_fwspec_fourcell' filepath='drivers/gpio/gpiolib.c' line='1266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_populate_parent_fwspec_fourcell'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='1266' column='1'/>
+        <parameter type-id='f0981eeb' name='parent_hwirq' filepath='drivers/gpio/gpiolib.c' line='1267' column='1'/>
+        <parameter type-id='f0981eeb' name='parent_type' filepath='drivers/gpio/gpiolib.c' line='1268' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='gpiochip_remove' mangled-name='gpiochip_remove' filepath='include/linux/gpio/driver.h' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_remove'>
+        <parameter type-id='e324928d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiochip_unlock_as_irq' mangled-name='gpiochip_unlock_as_irq' filepath='include/linux/gpio/driver.h' line='779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_unlock_as_irq'>
+        <parameter type-id='e324928d'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiod_cansleep' mangled-name='gpiod_cansleep' filepath='drivers/gpio/gpiolib.c' line='3160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_cansleep'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3160' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_count' mangled-name='gpiod_count' filepath='drivers/gpio/gpiolib.c' line='3816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_count'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib.c' line='3816' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3816' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_direction_input' mangled-name='gpiod_direction_input' filepath='drivers/gpio/gpiolib.c' line='2318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_direction_input'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='2318' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_direction_output' mangled-name='gpiod_direction_output' filepath='drivers/gpio/gpiolib.c' line='2437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_direction_output'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='2437' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='2437' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_direction_output_raw' mangled-name='gpiod_direction_output_raw' filepath='drivers/gpio/gpiolib.c' line='2418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_direction_output_raw'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='2418' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='2418' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_get_optional' mangled-name='gpiod_get_optional' filepath='drivers/gpio/gpiolib.c' line='3859' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib.c' line='3859' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3860' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib.c' line='3861' column='1'/>
+        <return type-id='26760480'/>
+      </function-decl>
+      <function-decl name='gpiod_get_raw_value' mangled-name='gpiod_get_raw_value' filepath='drivers/gpio/gpiolib.c' line='2769' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_raw_value'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='2769' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_get_raw_value_cansleep' mangled-name='gpiod_get_raw_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_raw_value_cansleep'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3398' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_get_value' mangled-name='gpiod_get_value' filepath='drivers/gpio/gpiolib.c' line='2788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_value'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='2788' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_get_value_cansleep' mangled-name='gpiod_get_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_value_cansleep'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3415' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_put' mangled-name='gpiod_put' filepath='drivers/gpio/gpiolib.c' line='4331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_put'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='4331' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiod_set_consumer_name' mangled-name='gpiod_set_consumer_name' filepath='drivers/gpio/gpiolib.c' line='3172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_consumer_name'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3172' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpio/gpiolib.c' line='3172' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_set_debounce' mangled-name='gpiod_set_debounce' filepath='drivers/gpio/gpiolib.c' line='2528' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_debounce'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='2528' column='1'/>
+        <parameter type-id='f0981eeb' name='debounce' filepath='drivers/gpio/gpiolib.c' line='2528' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gpiod_set_raw_value' mangled-name='gpiod_set_raw_value' filepath='drivers/gpio/gpiolib.c' line='3054' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_raw_value'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3054' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3054' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiod_set_raw_value_cansleep' mangled-name='gpiod_set_raw_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_raw_value_cansleep'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3495' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3495' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiod_set_value' mangled-name='gpiod_set_value' filepath='drivers/gpio/gpiolib.c' line='3095' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_value'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3095' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3095' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiod_set_value_cansleep' mangled-name='gpiod_set_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_value_cansleep'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3513' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3513' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gpiod_to_irq' mangled-name='gpiod_to_irq' filepath='drivers/gpio/gpiolib.c' line='3195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_to_irq'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3195' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gserial_alloc_line' mangled-name='gserial_alloc_line' filepath='drivers/usb/gadget/function/u_serial.c' line='1261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_alloc_line'>
+        <parameter type-id='cf536864' name='line_num' filepath='drivers/usb/gadget/function/u_serial.c' line='1261' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gserial_connect' mangled-name='gserial_connect' filepath='drivers/usb/gadget/function/u_serial.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_connect'>
+        <parameter type-id='3921c1a0'/>
+        <parameter type-id='f9b06939'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gserial_disconnect' mangled-name='gserial_disconnect' filepath='drivers/usb/gadget/function/u_serial.h' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_disconnect'>
+        <parameter type-id='3921c1a0'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='guid_gen' mangled-name='guid_gen' filepath='lib/uuid.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='guid_gen'>
+        <parameter type-id='e8a80ab7' name='lu' filepath='lib/uuid.c' line='60' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_bad_irq' mangled-name='handle_bad_irq' filepath='kernel/irq/handle.c' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_bad_irq'>
+        <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/handle.c' line='31' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_edge_irq' mangled-name='handle_edge_irq' filepath='kernel/irq/chip.c' line='793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_edge_irq'>
+        <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='793' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_fasteoi_ack_irq' mangled-name='handle_fasteoi_ack_irq' filepath='kernel/irq/chip.c' line='1248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_fasteoi_ack_irq'>
+        <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='1248' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_fasteoi_irq' mangled-name='handle_fasteoi_irq' filepath='kernel/irq/chip.c' line='707' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_fasteoi_irq'>
+        <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='707' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_level_irq' mangled-name='handle_level_irq' filepath='kernel/irq/chip.c' line='648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_level_irq'>
+        <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='648' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_nested_irq' mangled-name='handle_nested_irq' filepath='kernel/irq/chip.c' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_nested_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='462' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_simple_irq' mangled-name='handle_simple_irq' filepath='kernel/irq/chip.c' line='556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_simple_irq'>
+        <parameter type-id='76c7d88b' name='desc' filepath='kernel/irq/chip.c' line='556' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='handle_sysrq' mangled-name='handle_sysrq' filepath='drivers/tty/sysrq.c' line='631' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='handle_sysrq'>
+        <parameter type-id='95e97e5e' name='key' filepath='drivers/tty/sysrq.c' line='631' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='hash_digest_size' type-id='9208c5df' mangled-name='hash_digest_size' visibility='default' filepath='crypto/hash_info.c' line='35' column='1' elf-symbol-id='hash_digest_size'/>
+      <function-decl name='hashlen_string' mangled-name='hashlen_string' filepath='fs/namei.c' line='2076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hashlen_string'>
+        <parameter type-id='eaa32e2f' name='salt' filepath='fs/namei.c' line='2076' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/namei.c' line='2076' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='have_governor_per_policy' mangled-name='have_governor_per_policy' filepath='include/linux/cpufreq.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='have_governor_per_policy'>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='hci_alloc_dev' mangled-name='hci_alloc_dev' filepath='include/net/bluetooth/hci_core.h' line='1203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_alloc_dev'>
+        <return type-id='9ad862e7'/>
+      </function-decl>
+      <function-decl name='hci_cmd_sync' mangled-name='hci_cmd_sync' filepath='net/bluetooth/hci_core.c' line='4135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_cmd_sync'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='4135' column='1'/>
+        <parameter type-id='1dc6a898' name='opcode' filepath='net/bluetooth/hci_core.c' line='4135' column='1'/>
+        <parameter type-id='19c2251e' name='plen' filepath='net/bluetooth/hci_core.c' line='4135' column='1'/>
+        <parameter type-id='eaa32e2f' name='param' filepath='net/bluetooth/hci_core.c' line='4136' column='1'/>
+        <parameter type-id='19c2251e' name='timeout' filepath='net/bluetooth/hci_core.c' line='4136' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='hci_free_dev' mangled-name='hci_free_dev' filepath='net/bluetooth/hci_core.c' line='3701' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_free_dev'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3701' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hci_recv_diag' mangled-name='hci_recv_diag' filepath='include/net/bluetooth/hci_core.h' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_diag'>
+        <parameter type-id='9ad862e7'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hci_recv_frame' mangled-name='hci_recv_frame' filepath='include/net/bluetooth/hci_core.h' line='1211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_frame'>
+        <parameter type-id='9ad862e7'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hci_register_dev' mangled-name='hci_register_dev' filepath='include/net/bluetooth/hci_core.h' line='1205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_register_dev'>
+        <parameter type-id='9ad862e7'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hci_unregister_dev' mangled-name='hci_unregister_dev' filepath='include/net/bluetooth/hci_core.h' line='1206' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_unregister_dev'>
+        <parameter type-id='9ad862e7'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hdmi_audio_infoframe_init' mangled-name='hdmi_audio_infoframe_init' filepath='drivers/video/hdmi.c' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hdmi_audio_infoframe_init'>
+        <parameter type-id='309bd9ee' name='frame' filepath='drivers/video/hdmi.c' line='349' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hdmi_audio_infoframe_pack' mangled-name='hdmi_audio_infoframe_pack' filepath='drivers/video/hdmi.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hdmi_audio_infoframe_pack'>
+        <parameter type-id='309bd9ee' name='frame' filepath='drivers/video/hdmi.c' line='465' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/video/hdmi.c' line='466' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/video/hdmi.c' line='466' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='hdmi_avi_infoframe_init' mangled-name='hdmi_avi_infoframe_init' filepath='drivers/video/hdmi.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hdmi_avi_infoframe_init'>
+        <parameter type-id='19ddc3a6' name='frame' filepath='drivers/video/hdmi.c' line='57' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hdmi_avi_infoframe_pack' mangled-name='hdmi_avi_infoframe_pack' filepath='drivers/video/hdmi.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hdmi_avi_infoframe_pack'>
+        <parameter type-id='19ddc3a6' name='frame' filepath='drivers/video/hdmi.c' line='200' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/video/hdmi.c' line='201' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/video/hdmi.c' line='201' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='hdmi_infoframe_pack' mangled-name='hdmi_infoframe_pack' filepath='drivers/video/hdmi.c' line='944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hdmi_infoframe_pack'>
+        <parameter type-id='885b5549' name='frame' filepath='drivers/video/hdmi.c' line='944' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='drivers/video/hdmi.c' line='945' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/video/hdmi.c' line='945' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='hex2bin' mangled-name='hex2bin' filepath='include/linux/kernel.h' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex2bin'>
+        <parameter type-id='8bff8096'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='hex_asc_upper' type-id='8945ea40' mangled-name='hex_asc_upper' visibility='default' filepath='lib/hexdump.c' line='16' column='1' elf-symbol-id='hex_asc_upper'/>
+      <function-decl name='hex_dump_to_buffer' mangled-name='hex_dump_to_buffer' filepath='include/linux/printk.h' line='577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex_dump_to_buffer'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hex_to_bin' mangled-name='hex_to_bin' filepath='include/linux/kernel.h' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex_to_bin'>
+        <parameter type-id='a84c031d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hid_add_device' mangled-name='hid_add_device' filepath='include/linux/hid.h' line='863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_add_device'>
+        <parameter type-id='37175e4d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hid_allocate_device' mangled-name='hid_allocate_device' filepath='include/linux/hid.h' line='903' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_allocate_device'>
+        <return type-id='37175e4d'/>
+      </function-decl>
+      <var-decl name='hid_debug' type-id='95e97e5e' mangled-name='hid_debug' visibility='default' filepath='drivers/hid/hid-core.c' line='44' column='1' elf-symbol-id='hid_debug'/>
+      <function-decl name='hid_destroy_device' mangled-name='hid_destroy_device' filepath='include/linux/hid.h' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_destroy_device'>
+        <parameter type-id='37175e4d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hid_input_report' mangled-name='hid_input_report' filepath='drivers/hid/hid-core.c' line='1810' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_input_report'>
+        <parameter type-id='37175e4d' name='hid' filepath='drivers/hid/hid-core.c' line='1810' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='drivers/hid/hid-core.c' line='1810' column='1'/>
+        <parameter type-id='8bff8096' name='data' filepath='drivers/hid/hid-core.c' line='1810' column='1'/>
+        <parameter type-id='19c2251e' name='size' filepath='drivers/hid/hid-core.c' line='1810' column='1'/>
+        <parameter type-id='95e97e5e' name='interrupt' filepath='drivers/hid/hid-core.c' line='1810' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hid_parse_report' mangled-name='hid_parse_report' filepath='include/linux/hid.h' line='907' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_parse_report'>
+        <parameter type-id='37175e4d'/>
+        <parameter type-id='474e5dcc'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hrtimer_active' mangled-name='hrtimer_active' filepath='include/linux/hrtimer.h' line='456' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_active'>
+        <parameter type-id='1ce53783'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='hrtimer_cancel' mangled-name='hrtimer_cancel' filepath='include/linux/hrtimer.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_cancel'>
+        <parameter type-id='08c8d0fa'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hrtimer_forward' mangled-name='hrtimer_forward' filepath='include/linux/hrtimer.h' line='483' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_forward'>
+        <parameter type-id='08c8d0fa'/>
+        <parameter type-id='fbc017ef'/>
+        <parameter type-id='fbc017ef'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='hrtimer_init' mangled-name='hrtimer_init' filepath='include/linux/hrtimer.h' line='374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_init'>
+        <parameter type-id='08c8d0fa'/>
+        <parameter type-id='a1c3b834'/>
+        <parameter type-id='88326653'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hrtimer_init_sleeper' mangled-name='hrtimer_init_sleeper' filepath='kernel/time/hrtimer.c' line='1905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_init_sleeper'>
+        <parameter type-id='6972ad8b' name='sl' filepath='kernel/time/hrtimer.c' line='1905' column='1'/>
+        <parameter type-id='a1c3b834' name='clock_id' filepath='kernel/time/hrtimer.c' line='1905' column='1'/>
+        <parameter type-id='88326653' name='mode' filepath='kernel/time/hrtimer.c' line='1906' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hrtimer_sleeper_start_expires' mangled-name='hrtimer_sleeper_start_expires' filepath='kernel/time/hrtimer.c' line='1850' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_sleeper_start_expires'>
+        <parameter type-id='6972ad8b' name='sl' filepath='kernel/time/hrtimer.c' line='1850' column='1'/>
+        <parameter type-id='88326653' name='mode' filepath='kernel/time/hrtimer.c' line='1851' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hrtimer_start_range_ns' mangled-name='hrtimer_start_range_ns' filepath='include/linux/hrtimer.h' line='406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_start_range_ns'>
+        <parameter type-id='08c8d0fa'/>
+        <parameter type-id='fbc017ef'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='9bedc94f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hrtimer_try_to_cancel' mangled-name='hrtimer_try_to_cancel' filepath='include/linux/hrtimer.h' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_try_to_cancel'>
+        <parameter type-id='08c8d0fa'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hvc_alloc' mangled-name='hvc_alloc' filepath='drivers/tty/hvc/hvc_console.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_alloc'>
+        <parameter type-id='8f92235e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f319e2c5'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='352b95f6'/>
+      </function-decl>
+      <function-decl name='hvc_instantiate' mangled-name='hvc_instantiate' filepath='drivers/tty/hvc/hvc_console.h' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_instantiate'>
+        <parameter type-id='8f92235e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f319e2c5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hvc_kick' mangled-name='hvc_kick' filepath='drivers/tty/hvc/hvc_console.c' line='313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_kick'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hvc_poll' mangled-name='hvc_poll' filepath='drivers/tty/hvc/hvc_console.c' line='762' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_poll'>
+        <parameter type-id='352b95f6' name='hp' filepath='drivers/tty/hvc/hvc_console.c' line='762' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hvc_remove' mangled-name='hvc_remove' filepath='drivers/tty/hvc/hvc_console.c' line='979' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_remove'>
+        <parameter type-id='352b95f6' name='hp' filepath='drivers/tty/hvc/hvc_console.c' line='979' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hwrng_register' mangled-name='hwrng_register' filepath='drivers/char/hw_random/core.c' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwrng_register'>
+        <parameter type-id='c1547255' name='rng' filepath='drivers/char/hw_random/core.c' line='468' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hwrng_unregister' mangled-name='hwrng_unregister' filepath='drivers/char/hw_random/core.c' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwrng_unregister'>
+        <parameter type-id='c1547255' name='rng' filepath='drivers/char/hw_random/core.c' line='535' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='hwspin_lock_free' mangled-name='hwspin_lock_free' filepath='include/linux/hwspinlock.h' line='63' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwspin_lock_free'>
+        <parameter type-id='0cb0b26f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='hwspin_lock_request_specific' mangled-name='hwspin_lock_request_specific' filepath='include/linux/hwspinlock.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwspin_lock_request_specific'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='0cb0b26f'/>
+      </function-decl>
+      <var-decl name='i2c_adapter_type' type-id='bdae35f4' mangled-name='i2c_adapter_type' visibility='default' filepath='drivers/i2c/i2c-core-base.c' line='1263' column='1' elf-symbol-id='i2c_adapter_type'/>
+      <function-decl name='i2c_add_adapter' mangled-name='i2c_add_adapter' filepath='include/linux/i2c.h' line='848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_add_adapter'>
+        <parameter type-id='b9af02c3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_add_numbered_adapter' mangled-name='i2c_add_numbered_adapter' filepath='drivers/i2c/i2c-core-base.c' line='1578' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_add_numbered_adapter'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='1578' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='i2c_bus_type' type-id='b31bfc8a' mangled-name='i2c_bus_type' visibility='default' filepath='drivers/i2c/i2c-core-base.c' line='632' column='1' elf-symbol-id='i2c_bus_type'/>
+      <var-decl name='i2c_client_type' type-id='bdae35f4' mangled-name='i2c_client_type' visibility='default' filepath='drivers/i2c/i2c-core-base.c' line='641' column='1' elf-symbol-id='i2c_client_type'/>
+      <function-decl name='i2c_del_adapter' mangled-name='i2c_del_adapter' filepath='include/linux/i2c.h' line='849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_del_adapter'>
+        <parameter type-id='b9af02c3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='i2c_del_driver' mangled-name='i2c_del_driver' filepath='include/linux/i2c.h' line='853' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_del_driver'>
+        <parameter type-id='29ffcb70'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='i2c_for_each_dev' mangled-name='i2c_for_each_dev' filepath='drivers/i2c/i2c-core-base.c' line='1765' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_for_each_dev'>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/i2c/i2c-core-base.c' line='1765' column='1'/>
+        <parameter type-id='92d15ae9' name='fn' filepath='drivers/i2c/i2c-core-base.c' line='1765' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_generic_scl_recovery' mangled-name='i2c_generic_scl_recovery' filepath='drivers/i2c/i2c-core-base.c' line='179' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_generic_scl_recovery'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='179' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_get_adapter' mangled-name='i2c_get_adapter' filepath='drivers/i2c/i2c-core-base.c' line='2383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_get_adapter'>
+        <parameter type-id='95e97e5e' name='nr' filepath='drivers/i2c/i2c-core-base.c' line='2383' column='1'/>
+        <return type-id='b9af02c3'/>
+      </function-decl>
+      <function-decl name='i2c_get_device_id' mangled-name='i2c_get_device_id' filepath='drivers/i2c/i2c-core-base.c' line='2159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_get_device_id'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-base.c' line='2159' column='1'/>
+        <parameter type-id='390f38a5' name='id' filepath='drivers/i2c/i2c-core-base.c' line='2160' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_get_dma_safe_msg_buf' mangled-name='i2c_get_dma_safe_msg_buf' filepath='drivers/i2c/i2c-core-base.c' line='2425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_get_dma_safe_msg_buf'>
+        <parameter type-id='cd44bc95' name='msg' filepath='drivers/i2c/i2c-core-base.c' line='2425' column='1'/>
+        <parameter type-id='f0981eeb' name='threshold' filepath='drivers/i2c/i2c-core-base.c' line='2425' column='1'/>
+        <return type-id='8bff8096'/>
+      </function-decl>
+      <function-decl name='i2c_match_id' mangled-name='i2c_match_id' filepath='drivers/i2c/i2c-core-base.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_match_id'>
+        <parameter type-id='49e46a4d' name='id' filepath='drivers/i2c/i2c-core-base.c' line='80' column='1'/>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-base.c' line='81' column='1'/>
+        <return type-id='49e46a4d'/>
+      </function-decl>
+      <function-decl name='i2c_new_ancillary_device' mangled-name='i2c_new_ancillary_device' filepath='drivers/i2c/i2c-core-base.c' line='1087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_ancillary_device'>
+        <parameter type-id='3e31633b' name='client' filepath='drivers/i2c/i2c-core-base.c' line='1087' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/i2c/i2c-core-base.c' line='1088' column='1'/>
+        <parameter type-id='1dc6a898' name='default_addr' filepath='drivers/i2c/i2c-core-base.c' line='1089' column='1'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='i2c_new_client_device' mangled-name='i2c_new_client_device' filepath='include/linux/i2c.h' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_client_device'>
+        <parameter type-id='b9af02c3'/>
+        <parameter type-id='88139c0a'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='i2c_new_dummy_device' mangled-name='i2c_new_dummy_device' filepath='drivers/i2c/i2c-core-base.c' line='1011' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_dummy_device'>
+        <parameter type-id='b9af02c3' name='adapter' filepath='drivers/i2c/i2c-core-base.c' line='1011' column='1'/>
+        <parameter type-id='1dc6a898' name='address' filepath='drivers/i2c/i2c-core-base.c' line='1011' column='1'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='i2c_new_scanned_device' mangled-name='i2c_new_scanned_device' filepath='drivers/i2c/i2c-core-base.c' line='2342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_scanned_device'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='2342' column='1'/>
+        <parameter type-id='fae597a1' name='info' filepath='drivers/i2c/i2c-core-base.c' line='2343' column='1'/>
+        <parameter type-id='31347b7a' name='addr_list' filepath='drivers/i2c/i2c-core-base.c' line='2344' column='1'/>
+        <parameter type-id='9194e9f3' name='probe' filepath='drivers/i2c/i2c-core-base.c' line='2345' column='1'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='i2c_parse_fw_timings' mangled-name='i2c_parse_fw_timings' filepath='drivers/i2c/i2c-core-base.c' line='1736' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_parse_fw_timings'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/i2c/i2c-core-base.c' line='1736' column='1'/>
+        <parameter type-id='d19fb227' name='t' filepath='drivers/i2c/i2c-core-base.c' line='1736' column='1'/>
+        <parameter type-id='b50a4934' name='use_defaults' filepath='drivers/i2c/i2c-core-base.c' line='1736' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='i2c_put_adapter' mangled-name='i2c_put_adapter' filepath='drivers/i2c/i2c-core-base.c' line='2403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_put_adapter'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='2403' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='i2c_put_dma_safe_msg_buf' mangled-name='i2c_put_dma_safe_msg_buf' filepath='drivers/i2c/i2c-core-base.c' line='2453' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_put_dma_safe_msg_buf'>
+        <parameter type-id='8bff8096' name='buf' filepath='drivers/i2c/i2c-core-base.c' line='2453' column='1'/>
+        <parameter type-id='cd44bc95' name='msg' filepath='drivers/i2c/i2c-core-base.c' line='2453' column='1'/>
+        <parameter type-id='b50a4934' name='xferred' filepath='drivers/i2c/i2c-core-base.c' line='2453' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='i2c_recover_bus' mangled-name='i2c_recover_bus' filepath='drivers/i2c/i2c-core-base.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_recover_bus'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='250' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_register_driver' mangled-name='i2c_register_driver' filepath='include/linux/i2c.h' line='852' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_register_driver'>
+        <parameter type-id='2730d015'/>
+        <parameter type-id='29ffcb70'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_smbus_read_byte' mangled-name='i2c_smbus_read_byte' filepath='include/linux/i2c.h' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_byte'>
+        <parameter type-id='7ea54338'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='i2c_smbus_read_byte_data' mangled-name='i2c_smbus_read_byte_data' filepath='include/linux/i2c.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_byte_data'>
+        <parameter type-id='7ea54338'/>
+        <parameter type-id='f9b06939'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='i2c_smbus_read_word_data' mangled-name='i2c_smbus_read_word_data' filepath='include/linux/i2c.h' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_word_data'>
+        <parameter type-id='7ea54338'/>
+        <parameter type-id='f9b06939'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='i2c_smbus_write_byte' mangled-name='i2c_smbus_write_byte' filepath='drivers/i2c/i2c-core-smbus.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_write_byte'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-smbus.c' line='113' column='1'/>
+        <parameter type-id='f9b06939' name='value' filepath='drivers/i2c/i2c-core-smbus.c' line='113' column='1'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='i2c_smbus_write_byte_data' mangled-name='i2c_smbus_write_byte_data' filepath='include/linux/i2c.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_write_byte_data'>
+        <parameter type-id='7ea54338'/>
+        <parameter type-id='f9b06939'/>
+        <parameter type-id='f9b06939'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='i2c_smbus_xfer' mangled-name='i2c_smbus_xfer' filepath='include/linux/i2c.h' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_xfer'>
+        <parameter type-id='b9af02c3'/>
+        <parameter type-id='1dc6a898'/>
+        <parameter type-id='8efea9e5'/>
+        <parameter type-id='a84c031d'/>
+        <parameter type-id='f9b06939'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='a556dccb'/>
+        <return type-id='a7832498'/>
+      </function-decl>
+      <function-decl name='i2c_transfer' mangled-name='i2c_transfer' filepath='include/linux/i2c.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_transfer'>
+        <parameter type-id='b9af02c3'/>
+        <parameter type-id='cd44bc95'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_transfer_buffer_flags' mangled-name='i2c_transfer_buffer_flags' filepath='include/linux/i2c.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_transfer_buffer_flags'>
+        <parameter type-id='7ea54338'/>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='1dc6a898'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='i2c_unregister_device' mangled-name='i2c_unregister_device' filepath='include/linux/i2c.h' line='473' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_unregister_device'>
+        <parameter type-id='3e31633b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='i2c_verify_adapter' mangled-name='i2c_verify_adapter' filepath='drivers/i2c/i2c-core-base.c' line='1278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_verify_adapter'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/i2c/i2c-core-base.c' line='1278' column='1'/>
+        <return type-id='b9af02c3'/>
+      </function-decl>
+      <function-decl name='i2c_verify_client' mangled-name='i2c_verify_client' filepath='drivers/i2c/i2c-core-base.c' line='658' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_verify_client'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/i2c/i2c-core-base.c' line='658' column='1'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='icc_disable' mangled-name='icc_disable' filepath='include/linux/interconnect.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_disable'>
+        <parameter type-id='b5fdec5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_enable' mangled-name='icc_enable' filepath='include/linux/interconnect.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_enable'>
+        <parameter type-id='b5fdec5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_link_create' mangled-name='icc_link_create' filepath='drivers/interconnect/core.c' line='870' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_link_create'>
+        <parameter type-id='18d76f87' name='node' filepath='drivers/interconnect/core.c' line='870' column='1'/>
+        <parameter type-id='2448a865' name='dst_id' filepath='drivers/interconnect/core.c' line='870' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_node_add' mangled-name='icc_node_add' filepath='drivers/interconnect/core.c' line='960' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_node_add'>
+        <parameter type-id='18d76f87' name='node' filepath='drivers/interconnect/core.c' line='960' column='1'/>
+        <parameter type-id='e68dc824' name='provider' filepath='drivers/interconnect/core.c' line='960' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='icc_node_create' mangled-name='icc_node_create' filepath='drivers/interconnect/core.c' line='821' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_node_create'>
+        <parameter type-id='95e97e5e' name='id' filepath='drivers/interconnect/core.c' line='821' column='1'/>
+        <return type-id='18d76f87'/>
+      </function-decl>
+      <function-decl name='icc_nodes_remove' mangled-name='icc_nodes_remove' filepath='drivers/interconnect/core.c' line='1012' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_nodes_remove'>
+        <parameter type-id='e68dc824' name='provider' filepath='drivers/interconnect/core.c' line='1012' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_provider_add' mangled-name='icc_provider_add' filepath='drivers/interconnect/core.c' line='1034' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_provider_add'>
+        <parameter type-id='e68dc824' name='provider' filepath='drivers/interconnect/core.c' line='1034' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_provider_del' mangled-name='icc_provider_del' filepath='drivers/interconnect/core.c' line='1060' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_provider_del'>
+        <parameter type-id='e68dc824' name='provider' filepath='drivers/interconnect/core.c' line='1060' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_put' mangled-name='icc_put' filepath='include/linux/interconnect.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_put'>
+        <parameter type-id='b5fdec5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='icc_set_bw' mangled-name='icc_set_bw' filepath='include/linux/interconnect.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_set_bw'>
+        <parameter type-id='b5fdec5e'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_set_tag' mangled-name='icc_set_tag' filepath='drivers/interconnect/core.c' line='573' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_set_tag'>
+        <parameter type-id='b5fdec5e' name='path' filepath='drivers/interconnect/core.c' line='573' column='1'/>
+        <parameter type-id='19c2251e' name='tag' filepath='drivers/interconnect/core.c' line='573' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='icc_std_aggregate' mangled-name='icc_std_aggregate' filepath='drivers/interconnect/core.c' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_std_aggregate'>
+        <parameter type-id='18d76f87' name='node' filepath='drivers/interconnect/core.c' line='311' column='1'/>
+        <parameter type-id='19c2251e' name='tag' filepath='drivers/interconnect/core.c' line='311' column='1'/>
+        <parameter type-id='19c2251e' name='avg_bw' filepath='drivers/interconnect/core.c' line='311' column='1'/>
+        <parameter type-id='19c2251e' name='peak_bw' filepath='drivers/interconnect/core.c' line='312' column='1'/>
+        <parameter type-id='f9409001' name='agg_avg' filepath='drivers/interconnect/core.c' line='312' column='1'/>
+        <parameter type-id='f9409001' name='agg_peak' filepath='drivers/interconnect/core.c' line='312' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='icc_sync_state' mangled-name='icc_sync_state' filepath='drivers/interconnect/core.c' line='1097' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_sync_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/interconnect/core.c' line='1097' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ida_alloc_range' mangled-name='ida_alloc_range' filepath='include/linux/idr.h' line='255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_alloc_range'>
+        <parameter type-id='a9e764bb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ida_destroy' mangled-name='ida_destroy' filepath='include/linux/idr.h' line='257' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_destroy'>
+        <parameter type-id='a9e764bb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ida_free' mangled-name='ida_free' filepath='include/linux/idr.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_free'>
+        <parameter type-id='a9e764bb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='idr_alloc' mangled-name='idr_alloc' filepath='include/linux/idr.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc'>
+        <parameter type-id='301185b4'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='idr_alloc_cyclic' mangled-name='idr_alloc_cyclic' filepath='include/linux/idr.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_cyclic'>
+        <parameter type-id='301185b4'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='idr_alloc_u32' mangled-name='idr_alloc_u32' filepath='lib/idr.c' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_u32'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='33' column='1'/>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='lib/idr.c' line='33' column='1'/>
+        <parameter type-id='f9409001' name='nextid' filepath='lib/idr.c' line='33' column='1'/>
+        <parameter type-id='7359adad' name='max' filepath='lib/idr.c' line='34' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/idr.c' line='34' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='idr_destroy' mangled-name='idr_destroy' filepath='include/linux/idr.h' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_destroy'>
+        <parameter type-id='301185b4'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='idr_find' mangled-name='idr_find' filepath='include/linux/idr.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_find'>
+        <parameter type-id='c79c8089'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='idr_for_each' mangled-name='idr_for_each' filepath='include/linux/idr.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_for_each'>
+        <parameter type-id='c79c8089'/>
+        <parameter type-id='f4f5b664'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='idr_get_next' mangled-name='idr_get_next' filepath='include/linux/idr.h' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_get_next'>
+        <parameter type-id='301185b4'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='idr_preload' mangled-name='idr_preload' filepath='include/linux/idr.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_preload'>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='idr_remove' mangled-name='idr_remove' filepath='include/linux/idr.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_remove'>
+        <parameter type-id='301185b4'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='idr_replace' mangled-name='idr_replace' filepath='include/linux/idr.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_replace'>
+        <parameter type-id='301185b4'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='ieee80211_alloc_hw_nm' mangled-name='ieee80211_alloc_hw_nm' filepath='net/mac80211/main.c' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_alloc_hw_nm'>
+        <parameter type-id='b59d7dce' name='priv_data_len' filepath='net/mac80211/main.c' line='527' column='1'/>
+        <parameter type-id='4b9cfd93' name='ops' filepath='net/mac80211/main.c' line='528' column='1'/>
+        <parameter type-id='80f4b756' name='requested_name' filepath='net/mac80211/main.c' line='529' column='1'/>
+        <return type-id='1905517d'/>
+      </function-decl>
+      <function-decl name='ieee80211_ap_probereq_get' mangled-name='ieee80211_ap_probereq_get' filepath='net/mac80211/mlme.c' line='2682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_ap_probereq_get'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/mlme.c' line='2682' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2683' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_beacon_cntdwn_is_complete' mangled-name='ieee80211_beacon_cntdwn_is_complete' filepath='net/mac80211/tx.c' line='4702' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_cntdwn_is_complete'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='4702' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='ieee80211_beacon_get_template' mangled-name='ieee80211_beacon_get_template' filepath='net/mac80211/tx.c' line='4975' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_get_template'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='4975' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='4976' column='1'/>
+        <parameter type-id='080a0935' name='offs' filepath='net/mac80211/tx.c' line='4977' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_beacon_get_tim' mangled-name='ieee80211_beacon_get_tim' filepath='net/mac80211/tx.c' line='4983' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_get_tim'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='4983' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='4984' column='1'/>
+        <parameter type-id='26d4d46f' name='tim_offset' filepath='net/mac80211/tx.c' line='4985' column='1'/>
+        <parameter type-id='26d4d46f' name='tim_length' filepath='net/mac80211/tx.c' line='4985' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_beacon_loss' mangled-name='ieee80211_beacon_loss' filepath='net/mac80211/mlme.c' line='2809' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_loss'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2809' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_beacon_update_cntdwn' mangled-name='ieee80211_beacon_update_cntdwn' filepath='net/mac80211/tx.c' line='4651' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_update_cntdwn'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='4651' column='1'/>
+        <return type-id='f9b06939'/>
+      </function-decl>
+      <function-decl name='ieee80211_bss_get_elem' mangled-name='ieee80211_bss_get_elem' filepath='net/wireless/util.c' line='910' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_bss_get_elem'>
+        <parameter type-id='bda81d86' name='bss' filepath='net/wireless/util.c' line='910' column='1'/>
+        <parameter type-id='f9b06939' name='id' filepath='net/wireless/util.c' line='910' column='1'/>
+        <return type-id='aa7ca86a'/>
+      </function-decl>
+      <function-decl name='ieee80211_channel_to_freq_khz' mangled-name='ieee80211_channel_to_freq_khz' filepath='net/wireless/util.c' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_channel_to_freq_khz'>
+        <parameter type-id='95e97e5e' name='chan' filepath='net/wireless/util.c' line='75' column='1'/>
+        <parameter type-id='3eaa0294' name='band' filepath='net/wireless/util.c' line='75' column='1'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='ieee80211_chswitch_done' mangled-name='ieee80211_chswitch_done' filepath='net/mac80211/mlme.c' line='1307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_chswitch_done'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='1307' column='1'/>
+        <parameter type-id='b50a4934' name='success' filepath='net/mac80211/mlme.c' line='1307' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_connection_loss' mangled-name='ieee80211_connection_loss' filepath='net/mac80211/mlme.c' line='2821' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_connection_loss'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2821' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_cqm_beacon_loss_notify' mangled-name='ieee80211_cqm_beacon_loss_notify' filepath='net/mac80211/mlme.c' line='5942' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_cqm_beacon_loss_notify'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='5942' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/mlme.c' line='5942' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_cqm_rssi_notify' mangled-name='ieee80211_cqm_rssi_notify' filepath='net/mac80211/mlme.c' line='5929' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_cqm_rssi_notify'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='5929' column='1'/>
+        <parameter type-id='b8189423' name='rssi_event' filepath='net/mac80211/mlme.c' line='5930' column='1'/>
+        <parameter type-id='a7832498' name='rssi_level' filepath='net/mac80211/mlme.c' line='5931' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/mlme.c' line='5932' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_csa_finish' mangled-name='ieee80211_csa_finish' filepath='net/mac80211/cfg.c' line='3131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_csa_finish'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/cfg.c' line='3131' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_find_sta' mangled-name='ieee80211_find_sta' filepath='net/mac80211/sta_info.c' line='1284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_find_sta'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/sta_info.c' line='1284' column='1'/>
+        <parameter type-id='bbaf3419' name='addr' filepath='net/mac80211/sta_info.c' line='1285' column='1'/>
+        <return type-id='f27bb1b0'/>
+      </function-decl>
+      <function-decl name='ieee80211_find_sta_by_ifaddr' mangled-name='ieee80211_find_sta_by_ifaddr' filepath='net/mac80211/sta_info.c' line='1259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_find_sta_by_ifaddr'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/sta_info.c' line='1259' column='1'/>
+        <parameter type-id='bbaf3419' name='addr' filepath='net/mac80211/sta_info.c' line='1260' column='1'/>
+        <parameter type-id='bbaf3419' name='localaddr' filepath='net/mac80211/sta_info.c' line='1261' column='1'/>
+        <return type-id='f27bb1b0'/>
+      </function-decl>
+      <function-decl name='ieee80211_free_hw' mangled-name='ieee80211_free_hw' filepath='net/mac80211/main.c' line='1415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_free_hw'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/main.c' line='1415' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_free_txskb' mangled-name='ieee80211_free_txskb' filepath='net/mac80211/status.c' line='1243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_free_txskb'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/status.c' line='1243' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/status.c' line='1243' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_freq_khz_to_channel' mangled-name='ieee80211_freq_khz_to_channel' filepath='net/wireless/util.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_freq_khz_to_channel'>
+        <parameter type-id='19c2251e' name='freq' filepath='net/wireless/util.c' line='141' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ieee80211_get_buffered_bc' mangled-name='ieee80211_get_buffered_bc' filepath='net/mac80211/tx.c' line='5280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_get_buffered_bc'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='5280' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='5281' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_get_channel_khz' mangled-name='ieee80211_get_channel_khz' filepath='net/wireless/util.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_get_channel_khz'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/util.c' line='167' column='1'/>
+        <parameter type-id='19c2251e' name='freq' filepath='net/wireless/util.c' line='168' column='1'/>
+        <return type-id='ec00acfb'/>
+      </function-decl>
+      <function-decl name='ieee80211_get_hdrlen_from_skb' mangled-name='ieee80211_get_hdrlen_from_skb' filepath='net/wireless/util.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_get_hdrlen_from_skb'>
+        <parameter type-id='11f4a000' name='skb' filepath='net/wireless/util.c' line='506' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='ieee80211_get_tx_rates' mangled-name='ieee80211_get_tx_rates' filepath='net/mac80211/rate.c' line='866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_get_tx_rates'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/rate.c' line='866' column='1'/>
+        <parameter type-id='f27bb1b0' name='sta' filepath='net/mac80211/rate.c' line='867' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/rate.c' line='868' column='1'/>
+        <parameter type-id='0f82eceb' name='dest' filepath='net/mac80211/rate.c' line='869' column='1'/>
+        <parameter type-id='95e97e5e' name='max_rates' filepath='net/mac80211/rate.c' line='870' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_hdrlen' mangled-name='ieee80211_hdrlen' filepath='net/wireless/util.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_hdrlen'>
+        <parameter type-id='23119536' name='fc' filepath='net/wireless/util.c' line='460' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='ieee80211_iter_chan_contexts_atomic' mangled-name='ieee80211_iter_chan_contexts_atomic' filepath='net/mac80211/chan.c' line='1794' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_iter_chan_contexts_atomic'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/chan.c' line='1795' column='1'/>
+        <parameter type-id='41e149d3' name='iter' filepath='net/mac80211/chan.c' line='1796' column='1'/>
+        <parameter type-id='eaa32e2f' name='iter_data' filepath='net/mac80211/chan.c' line='1799' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_iterate_active_interfaces_atomic' mangled-name='ieee80211_iterate_active_interfaces_atomic' filepath='net/mac80211/util.c' line='819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_iterate_active_interfaces_atomic'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='820' column='1'/>
+        <parameter type-id='19c2251e' name='iter_flags' filepath='net/mac80211/util.c' line='820' column='1'/>
+        <parameter type-id='4e5f84b1' name='iterator' filepath='net/mac80211/util.c' line='821' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='net/mac80211/util.c' line='823' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_iterate_interfaces' mangled-name='ieee80211_iterate_interfaces' filepath='net/mac80211/util.c' line='805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_iterate_interfaces'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='806' column='1'/>
+        <parameter type-id='19c2251e' name='iter_flags' filepath='net/mac80211/util.c' line='806' column='1'/>
+        <parameter type-id='4e5f84b1' name='iterator' filepath='net/mac80211/util.c' line='807' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='net/mac80211/util.c' line='809' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_iterate_stations_atomic' mangled-name='ieee80211_iterate_stations_atomic' filepath='net/mac80211/util.c' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_iterate_stations_atomic'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='864' column='1'/>
+        <parameter type-id='9d7b1183' name='iterator' filepath='net/mac80211/util.c' line='865' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='net/mac80211/util.c' line='867' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_manage_rx_ba_offl' mangled-name='ieee80211_manage_rx_ba_offl' filepath='net/mac80211/agg-rx.c' line='511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_manage_rx_ba_offl'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/agg-rx.c' line='511' column='1'/>
+        <parameter type-id='bbaf3419' name='addr' filepath='net/mac80211/agg-rx.c' line='512' column='1'/>
+        <parameter type-id='f0981eeb' name='tid' filepath='net/mac80211/agg-rx.c' line='512' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_next_txq' mangled-name='ieee80211_next_txq' filepath='net/mac80211/tx.c' line='3794' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_next_txq'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='3794' column='1'/>
+        <parameter type-id='f9b06939' name='ac' filepath='net/mac80211/tx.c' line='3794' column='1'/>
+        <return type-id='cde83d0f'/>
+      </function-decl>
+      <function-decl name='ieee80211_nullfunc_get' mangled-name='ieee80211_nullfunc_get' filepath='net/mac80211/tx.c' line='5151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_nullfunc_get'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='5151' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='5152' column='1'/>
+        <parameter type-id='b50a4934' name='qos_ok' filepath='net/mac80211/tx.c' line='5153' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_probereq_get' mangled-name='ieee80211_probereq_get' filepath='net/mac80211/tx.c' line='5210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_probereq_get'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='5210' column='1'/>
+        <parameter type-id='bbaf3419' name='src_addr' filepath='net/mac80211/tx.c' line='5211' column='1'/>
+        <parameter type-id='bbaf3419' name='ssid' filepath='net/mac80211/tx.c' line='5212' column='1'/>
+        <parameter type-id='b59d7dce' name='ssid_len' filepath='net/mac80211/tx.c' line='5212' column='1'/>
+        <parameter type-id='b59d7dce' name='tailroom' filepath='net/mac80211/tx.c' line='5213' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_proberesp_get' mangled-name='ieee80211_proberesp_get' filepath='net/mac80211/tx.c' line='5023' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_proberesp_get'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='5023' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='5024' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_pspoll_get' mangled-name='ieee80211_pspoll_get' filepath='net/mac80211/tx.c' line='5114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_pspoll_get'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='5114' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='5115' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_queue_delayed_work' mangled-name='ieee80211_queue_delayed_work' filepath='include/net/mac80211.h' line='5564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_queue_delayed_work'>
+        <parameter type-id='1905517d'/>
+        <parameter type-id='1a7ee447'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_queue_work' mangled-name='ieee80211_queue_work' filepath='include/net/mac80211.h' line='5552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_queue_work'>
+        <parameter type-id='1905517d'/>
+        <parameter type-id='83c1bde6'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_radar_detected' mangled-name='ieee80211_radar_detected' filepath='net/mac80211/util.c' line='3805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_radar_detected'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='3805' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_ready_on_channel' mangled-name='ieee80211_ready_on_channel' filepath='net/mac80211/offchannel.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_ready_on_channel'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/offchannel.c' line='278' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_register_hw' mangled-name='ieee80211_register_hw' filepath='net/mac80211/main.c' line='894' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_register_hw'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/main.c' line='894' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ieee80211_remain_on_channel_expired' mangled-name='ieee80211_remain_on_channel_expired' filepath='net/mac80211/offchannel.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_remain_on_channel_expired'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/offchannel.c' line='477' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_report_low_ack' mangled-name='ieee80211_report_low_ack' filepath='net/mac80211/status.c' line='1235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_report_low_ack'>
+        <parameter type-id='f27bb1b0' name='pubsta' filepath='net/mac80211/status.c' line='1235' column='1'/>
+        <parameter type-id='19c2251e' name='num_packets' filepath='net/mac80211/status.c' line='1235' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_restart_hw' mangled-name='ieee80211_restart_hw' filepath='net/mac80211/main.c' line='299' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_restart_hw'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/main.c' line='299' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_rx_irqsafe' mangled-name='ieee80211_rx_irqsafe' filepath='net/mac80211/rx.c' line='4882' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_rx_irqsafe'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/rx.c' line='4882' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/rx.c' line='4882' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_rx_napi' mangled-name='ieee80211_rx_napi' filepath='include/net/mac80211.h' line='4496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_rx_napi'>
+        <parameter type-id='1905517d'/>
+        <parameter type-id='f27bb1b0'/>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='c50361c5'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_scan_completed' mangled-name='ieee80211_scan_completed' filepath='net/mac80211/scan.c' line='491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_scan_completed'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/scan.c' line='491' column='1'/>
+        <parameter type-id='40cd17b4' name='info' filepath='net/mac80211/scan.c' line='492' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_sched_scan_results' mangled-name='ieee80211_sched_scan_results' filepath='net/mac80211/scan.c' line='1390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_sched_scan_results'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/scan.c' line='1390' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_sched_scan_stopped' mangled-name='ieee80211_sched_scan_stopped' filepath='net/mac80211/scan.c' line='1428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_sched_scan_stopped'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/scan.c' line='1428' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_sta_ps_transition' mangled-name='ieee80211_sta_ps_transition' filepath='net/mac80211/rx.c' line='1613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_sta_ps_transition'>
+        <parameter type-id='f27bb1b0' name='pubsta' filepath='net/mac80211/rx.c' line='1613' column='1'/>
+        <parameter type-id='b50a4934' name='start' filepath='net/mac80211/rx.c' line='1613' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ieee80211_sta_register_airtime' mangled-name='ieee80211_sta_register_airtime' filepath='net/mac80211/sta_info.c' line='1895' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_sta_register_airtime'>
+        <parameter type-id='f27bb1b0' name='pubsta' filepath='net/mac80211/sta_info.c' line='1895' column='1'/>
+        <parameter type-id='f9b06939' name='tid' filepath='net/mac80211/sta_info.c' line='1895' column='1'/>
+        <parameter type-id='19c2251e' name='tx_airtime' filepath='net/mac80211/sta_info.c' line='1896' column='1'/>
+        <parameter type-id='19c2251e' name='rx_airtime' filepath='net/mac80211/sta_info.c' line='1896' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_stop_queue' mangled-name='ieee80211_stop_queue' filepath='net/mac80211/util.c' line='563' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_stop_queue'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='563' column='1'/>
+        <parameter type-id='95e97e5e' name='queue' filepath='net/mac80211/util.c' line='563' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_stop_queues' mangled-name='ieee80211_stop_queues' filepath='net/mac80211/util.c' line='643' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_stop_queues'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='643' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_stop_rx_ba_session' mangled-name='ieee80211_stop_rx_ba_session' filepath='net/mac80211/agg-rx.c' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_stop_rx_ba_session'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/agg-rx.c' line='125' column='1'/>
+        <parameter type-id='1dc6a898' name='ba_rx_bitmap' filepath='net/mac80211/agg-rx.c' line='125' column='1'/>
+        <parameter type-id='bbaf3419' name='addr' filepath='net/mac80211/agg-rx.c' line='126' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_stop_tx_ba_cb_irqsafe' mangled-name='ieee80211_stop_tx_ba_cb_irqsafe' filepath='net/mac80211/agg-tx.c' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_stop_tx_ba_cb_irqsafe'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/agg-tx.c' line='924' column='1'/>
+        <parameter type-id='bbaf3419' name='ra' filepath='net/mac80211/agg-tx.c' line='925' column='1'/>
+        <parameter type-id='1dc6a898' name='tid' filepath='net/mac80211/agg-tx.c' line='925' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_tdls_oper_request' mangled-name='ieee80211_tdls_oper_request' filepath='net/mac80211/tdls.c' line='1441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tdls_oper_request'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tdls.c' line='1441' column='1'/>
+        <parameter type-id='bbaf3419' name='peer' filepath='net/mac80211/tdls.c' line='1441' column='1'/>
+        <parameter type-id='ee1b00fc' name='oper' filepath='net/mac80211/tdls.c' line='1442' column='1'/>
+        <parameter type-id='1dc6a898' name='reason_code' filepath='net/mac80211/tdls.c' line='1443' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/tdls.c' line='1443' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_tx_dequeue' mangled-name='ieee80211_tx_dequeue' filepath='net/mac80211/tx.c' line='3616' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_dequeue'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='3616' column='1'/>
+        <parameter type-id='cde83d0f' name='txq' filepath='net/mac80211/tx.c' line='3617' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='ieee80211_tx_rate_update' mangled-name='ieee80211_tx_rate_update' filepath='net/mac80211/status.c' line='1192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_rate_update'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/status.c' line='1192' column='1'/>
+        <parameter type-id='f27bb1b0' name='pubsta' filepath='net/mac80211/status.c' line='1193' column='1'/>
+        <parameter type-id='16734b39' name='info' filepath='net/mac80211/status.c' line='1194' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_tx_status' mangled-name='ieee80211_tx_status' filepath='include/net/mac80211.h' line='4738' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_status'>
+        <parameter type-id='1905517d'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_tx_status_irqsafe' mangled-name='ieee80211_tx_status_irqsafe' filepath='net/mac80211/status.c' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_status_irqsafe'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/status.c' line='21' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/status.c' line='22' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_txq_get_depth' mangled-name='ieee80211_txq_get_depth' filepath='net/mac80211/util.c' line='4472' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_txq_get_depth'>
+        <parameter type-id='cde83d0f' name='txq' filepath='net/mac80211/util.c' line='4472' column='1'/>
+        <parameter type-id='1d2c2b85' name='frame_cnt' filepath='net/mac80211/util.c' line='4473' column='1'/>
+        <parameter type-id='1d2c2b85' name='byte_cnt' filepath='net/mac80211/util.c' line='4474' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_txq_may_transmit' mangled-name='ieee80211_txq_may_transmit' filepath='net/mac80211/tx.c' line='3914' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_txq_may_transmit'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='3914' column='1'/>
+        <parameter type-id='cde83d0f' name='txq' filepath='net/mac80211/tx.c' line='3915' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='ieee80211_txq_schedule_start' mangled-name='ieee80211_txq_schedule_start' filepath='net/mac80211/tx.c' line='3964' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_txq_schedule_start'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='3964' column='1'/>
+        <parameter type-id='f9b06939' name='ac' filepath='net/mac80211/tx.c' line='3964' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_unregister_hw' mangled-name='ieee80211_unregister_hw' filepath='net/mac80211/main.c' line='1359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_unregister_hw'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/main.c' line='1359' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_wake_queue' mangled-name='ieee80211_wake_queue' filepath='net/mac80211/util.c' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_wake_queue'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='496' column='1'/>
+        <parameter type-id='95e97e5e' name='queue' filepath='net/mac80211/util.c' line='496' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee80211_wake_queues' mangled-name='ieee80211_wake_queues' filepath='net/mac80211/util.c' line='685' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_wake_queues'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='685' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee802154_alloc_hw' mangled-name='ieee802154_alloc_hw' filepath='net/mac802154/main.c' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_alloc_hw'>
+        <parameter type-id='b59d7dce' name='priv_data_len' filepath='net/mac802154/main.c' line='47' column='1'/>
+        <parameter type-id='3f26598b' name='ops' filepath='net/mac802154/main.c' line='47' column='1'/>
+        <return type-id='c67366c7'/>
+      </function-decl>
+      <function-decl name='ieee802154_free_hw' mangled-name='ieee802154_free_hw' filepath='net/mac802154/main.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_free_hw'>
+        <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/main.c' line='118' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee802154_register_hw' mangled-name='ieee802154_register_hw' filepath='net/mac802154/main.c' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_register_hw'>
+        <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/main.c' line='142' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ieee802154_rx_irqsafe' mangled-name='ieee802154_rx_irqsafe' filepath='net/mac802154/rx.c' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_rx_irqsafe'>
+        <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/rx.c' line='294' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac802154/rx.c' line='294' column='1'/>
+        <parameter type-id='f9b06939' name='lqi' filepath='net/mac802154/rx.c' line='294' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee802154_unregister_hw' mangled-name='ieee802154_unregister_hw' filepath='net/mac802154/main.c' line='207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_unregister_hw'>
+        <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/main.c' line='207' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee802154_wake_queue' mangled-name='ieee802154_wake_queue' filepath='include/net/mac802154.h' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_wake_queue'>
+        <parameter type-id='c67366c7'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ieee802154_xmit_complete' mangled-name='ieee802154_xmit_complete' filepath='include/net/mac802154.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_xmit_complete'>
+        <parameter type-id='c67366c7'/>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iio_device_unregister' mangled-name='iio_device_unregister' filepath='drivers/iio/industrialio-core.c' line='1797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iio_device_unregister'>
+        <parameter type-id='226853d2' name='indio_dev' filepath='drivers/iio/industrialio-core.c' line='1797' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='import_iovec' mangled-name='import_iovec' filepath='include/linux/uio.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='import_iovec'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='2c556848'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='5d3cb3f9'/>
+        <parameter type-id='4fa10f9e'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='in6_pton' mangled-name='in6_pton' filepath='net/core/utils.c' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='in6_pton'>
+        <parameter type-id='80f4b756' name='src' filepath='net/core/utils.c' line='184' column='1'/>
+        <parameter type-id='95e97e5e' name='srclen' filepath='net/core/utils.c' line='184' column='1'/>
+        <parameter type-id='8bff8096' name='dst' filepath='net/core/utils.c' line='185' column='1'/>
+        <parameter type-id='95e97e5e' name='delim' filepath='net/core/utils.c' line='186' column='1'/>
+        <parameter type-id='7d3cd834' name='end' filepath='net/core/utils.c' line='186' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='in_aton' mangled-name='in_aton' filepath='net/core/utils.c' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='in_aton'>
+        <parameter type-id='80f4b756' name='str' filepath='net/core/utils.c' line='50' column='1'/>
+        <return type-id='78a133c2'/>
+      </function-decl>
+      <function-decl name='in_egroup_p' mangled-name='in_egroup_p' filepath='kernel/groups.c' line='231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='in_egroup_p'>
+        <parameter type-id='094d8048' name='grp' filepath='kernel/groups.c' line='231' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='inc_zone_page_state' mangled-name='inc_zone_page_state' filepath='include/linux/vmstat.h' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inc_zone_page_state'>
+        <parameter type-id='02f11ed4'/>
+        <parameter type-id='a1f2d9a1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='init_dummy_netdev' mangled-name='init_dummy_netdev' filepath='net/core/dev.c' line='10194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_dummy_netdev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10194' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='init_net' type-id='bd965180' mangled-name='init_net' visibility='default' filepath='net/core/net_namespace.c' line='47' column='1' elf-symbol-id='init_net'/>
+      <var-decl name='init_pid_ns' type-id='0252e252' mangled-name='init_pid_ns' visibility='default' filepath='kernel/pid.c' line='75' column='1' elf-symbol-id='init_pid_ns'/>
+      <function-decl name='init_pseudo' mangled-name='init_pseudo' filepath='include/linux/pseudo_fs.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_pseudo'>
+        <parameter type-id='5760dcb0'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='79f85ebf'/>
+      </function-decl>
+      <function-decl name='init_srcu_struct' mangled-name='init_srcu_struct' filepath='kernel/rcu/srcutree.c' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_srcu_struct'>
+        <parameter type-id='f7d7131a' name='ssp' filepath='kernel/rcu/srcutree.c' line='213' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='init_task' type-id='bc3f1924' mangled-name='init_task' visibility='default' filepath='init/init_task.c' line='64' column='1' elf-symbol-id='init_task'/>
+      <function-decl name='init_timer_key' mangled-name='init_timer_key' filepath='include/linux/timer.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_timer_key'>
+        <parameter type-id='9248e67f'/>
+        <parameter type-id='9582ad9a'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='a57283f9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='init_uts_ns' type-id='44f52e9d' mangled-name='init_uts_ns' visibility='default' filepath='init/version.c' line='27' column='1' elf-symbol-id='init_uts_ns'/>
+      <function-decl name='init_wait_entry' mangled-name='init_wait_entry' filepath='include/linux/wait.h' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_wait_entry'>
+        <parameter type-id='db9d03e3'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_alloc_absinfo' mangled-name='input_alloc_absinfo' filepath='drivers/input/input.c' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_alloc_absinfo'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='486' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_allocate_device' mangled-name='input_allocate_device' filepath='drivers/input/input.c' line='1810' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_allocate_device'>
+        <return type-id='74b427eb'/>
+      </function-decl>
+      <function-decl name='input_close_device' mangled-name='input_close_device' filepath='include/linux/input.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_close_device'>
+        <parameter type-id='bef1b918'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_event' mangled-name='input_event' filepath='drivers/input/input.c' line='433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_event'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='433' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='drivers/input/input.c' line='434' column='1'/>
+        <parameter type-id='f0981eeb' name='code' filepath='drivers/input/input.c' line='434' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/input/input.c' line='434' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_ff_create' mangled-name='input_ff_create' filepath='drivers/input/ff-core.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_ff_create'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/ff-core.c' line='305' column='1'/>
+        <parameter type-id='f0981eeb' name='max_effects' filepath='drivers/input/ff-core.c' line='305' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_free_device' mangled-name='input_free_device' filepath='drivers/input/input.c' line='1915' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_free_device'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='1915' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_mt_assign_slots' mangled-name='input_mt_assign_slots' filepath='drivers/input/input-mt.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_assign_slots'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='440' column='1'/>
+        <parameter type-id='7292109c' name='slots' filepath='drivers/input/input-mt.c' line='440' column='1'/>
+        <parameter type-id='2c1e3f15' name='pos' filepath='drivers/input/input-mt.c' line='441' column='1'/>
+        <parameter type-id='95e97e5e' name='num_pos' filepath='drivers/input/input-mt.c' line='441' column='1'/>
+        <parameter type-id='95e97e5e' name='dmax' filepath='drivers/input/input-mt.c' line='442' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_mt_destroy_slots' mangled-name='input_mt_destroy_slots' filepath='include/linux/input/mt.h' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_destroy_slots'>
+        <parameter type-id='74b427eb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_mt_drop_unused' mangled-name='input_mt_drop_unused' filepath='drivers/input/input-mt.c' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_drop_unused'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='276' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_mt_init_slots' mangled-name='input_mt_init_slots' filepath='drivers/input/input-mt.c' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_init_slots'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='38' column='1'/>
+        <parameter type-id='f0981eeb' name='num_slots' filepath='drivers/input/input-mt.c' line='38' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='drivers/input/input-mt.c' line='39' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_mt_report_finger_count' mangled-name='input_mt_report_finger_count' filepath='drivers/input/input-mt.c' line='174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_report_finger_count'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='174' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/input/input-mt.c' line='174' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_mt_report_pointer_emulation' mangled-name='input_mt_report_pointer_emulation' filepath='drivers/input/input-mt.c' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_report_pointer_emulation'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='195' column='1'/>
+        <parameter type-id='b50a4934' name='use_count' filepath='drivers/input/input-mt.c' line='195' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_mt_report_slot_state' mangled-name='input_mt_report_slot_state' filepath='drivers/input/input-mt.c' line='134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_report_slot_state'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='134' column='1'/>
+        <parameter type-id='f0981eeb' name='tool_type' filepath='drivers/input/input-mt.c' line='135' column='1'/>
+        <parameter type-id='b50a4934' name='active' filepath='drivers/input/input-mt.c' line='135' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='input_mt_sync_frame' mangled-name='input_mt_sync_frame' filepath='drivers/input/input-mt.c' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_sync_frame'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='295' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_open_device' mangled-name='input_open_device' filepath='include/linux/input.h' line='414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_open_device'>
+        <parameter type-id='bef1b918'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_register_device' mangled-name='input_register_device' filepath='drivers/input/input.c' line='2153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_device'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2153' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_register_handle' mangled-name='input_register_handle' filepath='include/linux/input.h' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handle'>
+        <parameter type-id='bef1b918'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_register_handler' mangled-name='input_register_handler' filepath='include/linux/input.h' line='398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handler'>
+        <parameter type-id='4938abae'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='input_set_abs_params' mangled-name='input_set_abs_params' filepath='drivers/input/input.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_set_abs_params'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='504' column='1'/>
+        <parameter type-id='f0981eeb' name='axis' filepath='drivers/input/input.c' line='504' column='1'/>
+        <parameter type-id='95e97e5e' name='min' filepath='drivers/input/input.c' line='505' column='1'/>
+        <parameter type-id='95e97e5e' name='max' filepath='drivers/input/input.c' line='505' column='1'/>
+        <parameter type-id='95e97e5e' name='fuzz' filepath='drivers/input/input.c' line='505' column='1'/>
+        <parameter type-id='95e97e5e' name='flat' filepath='drivers/input/input.c' line='505' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_set_capability' mangled-name='input_set_capability' filepath='drivers/input/input.c' line='1977' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_set_capability'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='1977' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='drivers/input/input.c' line='1977' column='1'/>
+        <parameter type-id='f0981eeb' name='code' filepath='drivers/input/input.c' line='1977' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_set_timestamp' mangled-name='input_set_timestamp' filepath='drivers/input/input.c' line='1942' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_set_timestamp'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='1942' column='1'/>
+        <parameter type-id='fbc017ef' name='timestamp' filepath='drivers/input/input.c' line='1942' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_unregister_device' mangled-name='input_unregister_device' filepath='drivers/input/input.c' line='2260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_device'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2260' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_unregister_handle' mangled-name='input_unregister_handle' filepath='include/linux/input.h' line='409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handle'>
+        <parameter type-id='bef1b918'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='input_unregister_handler' mangled-name='input_unregister_handler' filepath='include/linux/input.h' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handler'>
+        <parameter type-id='4938abae'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='int_sqrt' mangled-name='int_sqrt' filepath='include/linux/kernel.h' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='int_sqrt'>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='int_to_scsilun' mangled-name='int_to_scsilun' filepath='drivers/scsi/scsi_common.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='int_to_scsilun'>
+        <parameter type-id='91ce1af9' name='lun' filepath='drivers/scsi/scsi_common.c' line='105' column='1'/>
+        <parameter type-id='a9aa3e2b' name='scsilun' filepath='drivers/scsi/scsi_common.c' line='105' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='invalidate_mapping_pages' mangled-name='invalidate_mapping_pages' filepath='mm/truncate.c' line='629' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='invalidate_mapping_pages'>
+        <parameter type-id='f57039f0' name='mapping' filepath='mm/truncate.c' line='629' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/truncate.c' line='630' column='1'/>
+        <parameter type-id='7359adad' name='end' filepath='mm/truncate.c' line='630' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='io_schedule' mangled-name='io_schedule' filepath='kernel/sched/core.c' line='6555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='io_schedule'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='io_schedule_timeout' mangled-name='io_schedule_timeout' filepath='kernel/sched/core.c' line='6542' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='io_schedule_timeout'>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/sched/core.c' line='6542' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <var-decl name='iomem_resource' type-id='5218160d' mangled-name='iomem_resource' visibility='default' filepath='kernel/resource.c' line='38' column='1' elf-symbol-id='iomem_resource'/>
+      <function-decl name='iommu_alloc_resv_region' mangled-name='iommu_alloc_resv_region' filepath='drivers/iommu/iommu.c' line='2825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_alloc_resv_region'>
+        <parameter type-id='2522883d' name='start' filepath='drivers/iommu/iommu.c' line='2825' column='1'/>
+        <parameter type-id='b59d7dce' name='length' filepath='drivers/iommu/iommu.c' line='2826' column='1'/>
+        <parameter type-id='95e97e5e' name='prot' filepath='drivers/iommu/iommu.c' line='2826' column='1'/>
+        <parameter type-id='256c2037' name='type' filepath='drivers/iommu/iommu.c' line='2827' column='1'/>
+        <return type-id='24b0cc5e'/>
+      </function-decl>
+      <function-decl name='iommu_attach_device' mangled-name='iommu_attach_device' filepath='drivers/iommu/iommu.c' line='1947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_attach_device'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='1947' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1947' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_attach_group' mangled-name='iommu_attach_group' filepath='drivers/iommu/iommu.c' line='2279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_attach_group'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='2279' column='1'/>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='2279' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_aux_attach_device' mangled-name='iommu_aux_attach_device' filepath='drivers/iommu/iommu.c' line='3011' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_aux_attach_device'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='3011' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='3011' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_aux_detach_device' mangled-name='iommu_aux_detach_device' filepath='drivers/iommu/iommu.c' line='3025' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_aux_detach_device'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='3025' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='3025' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_aux_get_pasid' mangled-name='iommu_aux_get_pasid' filepath='drivers/iommu/iommu.c' line='3034' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_aux_get_pasid'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='3034' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='3034' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_detach_device' mangled-name='iommu_detach_device' filepath='drivers/iommu/iommu.c' line='2198' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_detach_device'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='2198' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2198' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_dev_enable_feature' mangled-name='iommu_dev_enable_feature' filepath='drivers/iommu/iommu.c' line='2957' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_dev_enable_feature'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2957' column='1'/>
+        <parameter type-id='29d28711' name='feat' filepath='drivers/iommu/iommu.c' line='2957' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_dev_feature_enabled' mangled-name='iommu_dev_feature_enabled' filepath='drivers/iommu/iommu.c' line='2988' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_dev_feature_enabled'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2988' column='1'/>
+        <parameter type-id='29d28711' name='feat' filepath='drivers/iommu/iommu.c' line='2988' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='iommu_device_register' mangled-name='iommu_device_register' filepath='drivers/iommu/iommu.c' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_register'>
+        <parameter type-id='2f00283d' name='iommu' filepath='drivers/iommu/iommu.c' line='154' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_device_sysfs_add' mangled-name='iommu_device_sysfs_add' filepath='drivers/iommu/iommu-sysfs.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_sysfs_add'>
+        <parameter type-id='2f00283d' name='iommu' filepath='drivers/iommu/iommu-sysfs.c' line='54' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/iommu/iommu-sysfs.c' line='55' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='drivers/iommu/iommu-sysfs.c' line='56' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/iommu/iommu-sysfs.c' line='57' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_device_sysfs_remove' mangled-name='iommu_device_sysfs_remove' filepath='drivers/iommu/iommu-sysfs.c' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_sysfs_remove'>
+        <parameter type-id='2f00283d' name='iommu' filepath='drivers/iommu/iommu-sysfs.c' line='92' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_device_unlink' mangled-name='iommu_device_unlink' filepath='include/linux/iommu.h' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_unlink'>
+        <parameter type-id='2f00283d'/>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_device_unregister' mangled-name='iommu_device_unregister' filepath='drivers/iommu/iommu.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_unregister'>
+        <parameter type-id='2f00283d' name='iommu' filepath='drivers/iommu/iommu.c' line='163' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_dma_get_resv_regions' mangled-name='iommu_dma_get_resv_regions' filepath='drivers/iommu/dma-iommu.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_dma_get_resv_regions'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/dma-iommu.c' line='161' column='1'/>
+        <parameter type-id='e84b031a' name='list' filepath='drivers/iommu/dma-iommu.c' line='161' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_domain_alloc' mangled-name='iommu_domain_alloc' filepath='drivers/iommu/iommu.c' line='1921' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_domain_alloc'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/iommu/iommu.c' line='1921' column='1'/>
+        <return type-id='bff05edb'/>
+      </function-decl>
+      <function-decl name='iommu_domain_free' mangled-name='iommu_domain_free' filepath='drivers/iommu/iommu.c' line='1927' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_domain_free'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='1927' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_fwspec_add_ids' mangled-name='iommu_fwspec_add_ids' filepath='drivers/iommu/iommu.c' line='2917' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_fwspec_add_ids'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2917' column='1'/>
+        <parameter type-id='f9409001' name='ids' filepath='drivers/iommu/iommu.c' line='2917' column='1'/>
+        <parameter type-id='95e97e5e' name='num_ids' filepath='drivers/iommu/iommu.c' line='2917' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_fwspec_free' mangled-name='iommu_fwspec_free' filepath='drivers/iommu/iommu.c' line='2905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_fwspec_free'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2905' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_get_dma_cookie' mangled-name='iommu_get_dma_cookie' filepath='drivers/iommu/dma-iommu.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_get_dma_cookie'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/dma-iommu.c' line='79' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_get_domain_for_dev' mangled-name='iommu_get_domain_for_dev' filepath='drivers/iommu/iommu.c' line='2220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_get_domain_for_dev'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='2220' column='1'/>
+        <return type-id='bff05edb'/>
+      </function-decl>
+      <function-decl name='iommu_group_alloc' mangled-name='iommu_group_alloc' filepath='drivers/iommu/iommu.c' line='572' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_alloc'>
+        <return type-id='0b19fc54'/>
+      </function-decl>
+      <function-decl name='iommu_group_for_each_dev' mangled-name='iommu_group_for_each_dev' filepath='drivers/iommu/iommu.c' line='959' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_for_each_dev'>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='959' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/iommu/iommu.c' line='959' column='1'/>
+        <parameter type-id='92d15ae9' name='fn' filepath='drivers/iommu/iommu.c' line='960' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_group_get' mangled-name='iommu_group_get' filepath='drivers/iommu/iommu.c' line='980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='980' column='1'/>
+        <return type-id='0b19fc54'/>
+      </function-decl>
+      <function-decl name='iommu_group_get_iommudata' mangled-name='iommu_group_get_iommudata' filepath='drivers/iommu/iommu.c' line='667' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_get_iommudata'>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='667' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='iommu_group_put' mangled-name='iommu_group_put' filepath='drivers/iommu/iommu.c' line='1012' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_put'>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='1012' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_group_ref_get' mangled-name='iommu_group_ref_get' filepath='drivers/iommu/iommu.c' line='998' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_ref_get'>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='998' column='1'/>
+        <return type-id='0b19fc54'/>
+      </function-decl>
+      <function-decl name='iommu_group_set_iommudata' mangled-name='iommu_group_set_iommudata' filepath='drivers/iommu/iommu.c' line='683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_set_iommudata'>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='683' column='1'/>
+        <parameter type-id='eaa32e2f' name='iommu_data' filepath='drivers/iommu/iommu.c' line='683' column='1'/>
+        <parameter type-id='b7f9d8e6' name='release' filepath='drivers/iommu/iommu.c' line='684' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_group_set_name' mangled-name='iommu_group_set_name' filepath='drivers/iommu/iommu.c' line='699' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_group_set_name'>
+        <parameter type-id='0b19fc54' name='group' filepath='drivers/iommu/iommu.c' line='699' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/iommu/iommu.c' line='699' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_iova_to_phys' mangled-name='iommu_iova_to_phys' filepath='drivers/iommu/iommu.c' line='2332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_iova_to_phys'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='2332' column='1'/>
+        <parameter type-id='cf29c9b3' name='iova' filepath='drivers/iommu/iommu.c' line='2332' column='1'/>
+        <return type-id='2522883d'/>
+      </function-decl>
+      <function-decl name='iommu_map' mangled-name='iommu_map' filepath='drivers/iommu/iommu.c' line='2493' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_map'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='2493' column='1'/>
+        <parameter type-id='7359adad' name='iova' filepath='drivers/iommu/iommu.c' line='2493' column='1'/>
+        <parameter type-id='2522883d' name='paddr' filepath='drivers/iommu/iommu.c' line='2494' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/iommu/iommu.c' line='2494' column='1'/>
+        <parameter type-id='95e97e5e' name='prot' filepath='drivers/iommu/iommu.c' line='2494' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_map_sg' mangled-name='iommu_map_sg' filepath='drivers/iommu/iommu.c' line='2656' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_map_sg'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='2656' column='1'/>
+        <parameter type-id='7359adad' name='iova' filepath='drivers/iommu/iommu.c' line='2656' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/iommu/iommu.c' line='2657' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='drivers/iommu/iommu.c' line='2657' column='1'/>
+        <parameter type-id='95e97e5e' name='prot' filepath='drivers/iommu/iommu.c' line='2657' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='iommu_present' mangled-name='iommu_present' filepath='drivers/iommu/iommu.c' line='1863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_present'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/iommu/iommu.c' line='1863' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='iommu_put_dma_cookie' mangled-name='iommu_put_dma_cookie' filepath='drivers/iommu/dma-iommu.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_put_dma_cookie'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/dma-iommu.c' line='131' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_register_device_fault_handler' mangled-name='iommu_register_device_fault_handler' filepath='drivers/iommu/iommu.c' line='1067' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_register_device_fault_handler'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1067' column='1'/>
+        <parameter type-id='a84f5b46' name='handler' filepath='drivers/iommu/iommu.c' line='1068' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/iommu/iommu.c' line='1069' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_report_device_fault' mangled-name='iommu_report_device_fault' filepath='drivers/iommu/iommu.c' line='1152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_report_device_fault'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1152' column='1'/>
+        <parameter type-id='af233abc' name='evt' filepath='drivers/iommu/iommu.c' line='1152' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iommu_set_fault_handler' mangled-name='iommu_set_fault_handler' filepath='drivers/iommu/iommu.c' line='1890' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_set_fault_handler'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='1890' column='1'/>
+        <parameter type-id='a01c3626' name='handler' filepath='drivers/iommu/iommu.c' line='1891' column='1'/>
+        <parameter type-id='eaa32e2f' name='token' filepath='drivers/iommu/iommu.c' line='1892' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iommu_unmap' mangled-name='iommu_unmap' filepath='drivers/iommu/iommu.c' line='2575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_unmap'>
+        <parameter type-id='bff05edb' name='domain' filepath='drivers/iommu/iommu.c' line='2575' column='1'/>
+        <parameter type-id='7359adad' name='iova' filepath='drivers/iommu/iommu.c' line='2576' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/iommu/iommu.c' line='2576' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='iommu_unregister_device_fault_handler' mangled-name='iommu_unregister_device_fault_handler' filepath='drivers/iommu/iommu.c' line='1112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_unregister_device_fault_handler'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1112' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='iounmap' mangled-name='iounmap' filepath='arch/arm64/include/asm/io.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iounmap'>
+        <parameter type-id='fe09dd29'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iov_iter_bvec' mangled-name='iov_iter_bvec' filepath='include/linux/uio.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_bvec'>
+        <parameter type-id='4fa10f9e'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='15c9a01b'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iov_iter_kvec' mangled-name='iov_iter_kvec' filepath='include/linux/uio.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_kvec'>
+        <parameter type-id='4fa10f9e'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='5199c30d'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ip_compute_csum' mangled-name='ip_compute_csum' filepath='lib/checksum.c' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip_compute_csum'>
+        <parameter type-id='eaa32e2f' name='buff' filepath='lib/checksum.c' line='142' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='lib/checksum.c' line='142' column='1'/>
+        <return type-id='7dac1e36'/>
+      </function-decl>
+      <function-decl name='ip_send_check' mangled-name='ip_send_check' filepath='include/net/ip.h' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip_send_check'>
+        <parameter type-id='53be694c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='iput' mangled-name='iput' filepath='include/linux/fs.h' line='2385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iput'>
+        <parameter type-id='7e666abe'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_chip_ack_parent' mangled-name='irq_chip_ack_parent' filepath='kernel/irq/chip.c' line='1418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_ack_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1418' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_chip_disable_parent' mangled-name='irq_chip_disable_parent' filepath='kernel/irq/chip.c' line='1404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_disable_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1404' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_chip_enable_parent' mangled-name='irq_chip_enable_parent' filepath='kernel/irq/chip.c' line='1389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_enable_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1389' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_chip_eoi_parent' mangled-name='irq_chip_eoi_parent' filepath='include/linux/irq.h' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_eoi_parent'>
+        <parameter type-id='1c475548'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_chip_get_parent_state' mangled-name='irq_chip_get_parent_state' filepath='kernel/irq/chip.c' line='1371' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_get_parent_state'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1371' column='1'/>
+        <parameter type-id='0187da1b' name='which' filepath='kernel/irq/chip.c' line='1372' column='1'/>
+        <parameter type-id='d8e6b335' name='state' filepath='kernel/irq/chip.c' line='1373' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_mask_parent' mangled-name='irq_chip_mask_parent' filepath='include/linux/irq.h' line='683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_mask_parent'>
+        <parameter type-id='1c475548'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_chip_retrigger_hierarchy' mangled-name='irq_chip_retrigger_hierarchy' filepath='include/linux/irq.h' line='682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_retrigger_hierarchy'>
+        <parameter type-id='1c475548'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_set_affinity_parent' mangled-name='irq_chip_set_affinity_parent' filepath='kernel/irq/chip.c' line='1477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_affinity_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1477' column='1'/>
+        <parameter type-id='5f8a1ac4' name='dest' filepath='kernel/irq/chip.c' line='1478' column='1'/>
+        <parameter type-id='b50a4934' name='force' filepath='kernel/irq/chip.c' line='1478' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_set_parent_state' mangled-name='irq_chip_set_parent_state' filepath='include/linux/irq.h' line='673' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_parent_state'>
+        <parameter type-id='1c475548'/>
+        <parameter type-id='0187da1b'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_set_type_parent' mangled-name='irq_chip_set_type_parent' filepath='kernel/irq/chip.c' line='1495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_type_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1495' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='kernel/irq/chip.c' line='1495' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_set_vcpu_affinity_parent' mangled-name='irq_chip_set_vcpu_affinity_parent' filepath='kernel/irq/chip.c' line='1528' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_vcpu_affinity_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1528' column='1'/>
+        <parameter type-id='eaa32e2f' name='vcpu_info' filepath='kernel/irq/chip.c' line='1528' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_set_wake_parent' mangled-name='irq_chip_set_wake_parent' filepath='kernel/irq/chip.c' line='1544' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_wake_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1544' column='1'/>
+        <parameter type-id='f0981eeb' name='on' filepath='kernel/irq/chip.c' line='1544' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_chip_unmask_parent' mangled-name='irq_chip_unmask_parent' filepath='include/linux/irq.h' line='685' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_unmask_parent'>
+        <parameter type-id='1c475548'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_create_mapping_affinity' mangled-name='irq_create_mapping_affinity' filepath='kernel/irq/irqdomain.c' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_create_mapping_affinity'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='639' column='1'/>
+        <parameter type-id='88370ce9' name='hwirq' filepath='kernel/irq/irqdomain.c' line='640' column='1'/>
+        <parameter type-id='07779cd9' name='affinity' filepath='kernel/irq/irqdomain.c' line='641' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='irq_create_of_mapping' mangled-name='irq_create_of_mapping' filepath='kernel/irq/irqdomain.c' line='843' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_create_of_mapping'>
+        <parameter type-id='51a94113' name='irq_data' filepath='kernel/irq/irqdomain.c' line='843' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='irq_dispose_mapping' mangled-name='irq_dispose_mapping' filepath='kernel/irq/irqdomain.c' line='858' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_dispose_mapping'>
+        <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='858' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_domain_alloc_irqs_parent' mangled-name='irq_domain_alloc_irqs_parent' filepath='kernel/irq/irqdomain.c' line='1684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_alloc_irqs_parent'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1684' column='1'/>
+        <parameter type-id='f0981eeb' name='irq_base' filepath='kernel/irq/irqdomain.c' line='1685' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_irqs' filepath='kernel/irq/irqdomain.c' line='1685' column='1'/>
+        <parameter type-id='eaa32e2f' name='arg' filepath='kernel/irq/irqdomain.c' line='1686' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_domain_create_hierarchy' mangled-name='irq_domain_create_hierarchy' filepath='include/linux/irqdomain.h' line='470' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_create_hierarchy'>
+        <parameter type-id='7544e824'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='4a935625'/>
+        <parameter type-id='2c202856'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='7544e824'/>
+      </function-decl>
+      <function-decl name='irq_domain_free_irqs_common' mangled-name='irq_domain_free_irqs_common' filepath='kernel/irq/irqdomain.c' line='1341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_free_irqs_common'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1341' column='1'/>
+        <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='1341' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_irqs' filepath='kernel/irq/irqdomain.c' line='1342' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_domain_remove' mangled-name='irq_domain_remove' filepath='include/linux/irqdomain.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_remove'>
+        <parameter type-id='7544e824'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_domain_set_hwirq_and_chip' mangled-name='irq_domain_set_hwirq_and_chip' filepath='include/linux/irqdomain.h' line='505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_hwirq_and_chip'>
+        <parameter type-id='7544e824'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='88370ce9'/>
+        <parameter type-id='8846a616'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_domain_set_info' mangled-name='irq_domain_set_info' filepath='include/linux/irqdomain.h' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_info'>
+        <parameter type-id='7544e824'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='88370ce9'/>
+        <parameter type-id='8846a616'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='cdb741d3'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='irq_domain_simple_ops' type-id='a4974438' mangled-name='irq_domain_simple_ops' visibility='default' filepath='kernel/irq/irqdomain.c' line='975' column='1' elf-symbol-id='irq_domain_simple_ops'/>
+      <function-decl name='irq_domain_update_bus_token' mangled-name='irq_domain_update_bus_token' filepath='kernel/irq/irqdomain.c' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_update_bus_token'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='256' column='1'/>
+        <parameter type-id='385b8018' name='bus_token' filepath='kernel/irq/irqdomain.c' line='257' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_domain_xlate_onecell' mangled-name='irq_domain_xlate_onecell' filepath='kernel/irq/irqdomain.c' line='918' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_xlate_onecell'>
+        <parameter type-id='7544e824' name='d' filepath='kernel/irq/irqdomain.c' line='918' column='1'/>
+        <parameter type-id='9a537bbe' name='ctrlr' filepath='kernel/irq/irqdomain.c' line='918' column='1'/>
+        <parameter type-id='aded214c' name='intspec' filepath='kernel/irq/irqdomain.c' line='919' column='1'/>
+        <parameter type-id='f0981eeb' name='intsize' filepath='kernel/irq/irqdomain.c' line='919' column='1'/>
+        <parameter type-id='1d2c2b85' name='out_hwirq' filepath='kernel/irq/irqdomain.c' line='920' column='1'/>
+        <parameter type-id='807869d3' name='out_type' filepath='kernel/irq/irqdomain.c' line='920' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_domain_xlate_twocell' mangled-name='irq_domain_xlate_twocell' filepath='kernel/irq/irqdomain.c' line='937' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_xlate_twocell'>
+        <parameter type-id='7544e824' name='d' filepath='kernel/irq/irqdomain.c' line='937' column='1'/>
+        <parameter type-id='9a537bbe' name='ctrlr' filepath='kernel/irq/irqdomain.c' line='937' column='1'/>
+        <parameter type-id='aded214c' name='intspec' filepath='kernel/irq/irqdomain.c' line='938' column='1'/>
+        <parameter type-id='f0981eeb' name='intsize' filepath='kernel/irq/irqdomain.c' line='938' column='1'/>
+        <parameter type-id='ebc26324' name='out_hwirq' filepath='kernel/irq/irqdomain.c' line='939' column='1'/>
+        <parameter type-id='807869d3' name='out_type' filepath='kernel/irq/irqdomain.c' line='939' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_find_mapping' mangled-name='irq_find_mapping' filepath='include/linux/irqdomain.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_find_mapping'>
+        <parameter type-id='7544e824'/>
+        <parameter type-id='88370ce9'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='irq_find_matching_fwspec' mangled-name='irq_find_matching_fwspec' filepath='kernel/irq/irqdomain.c' line='372' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_find_matching_fwspec'>
+        <parameter type-id='2869bb38' name='fwspec' filepath='kernel/irq/irqdomain.c' line='372' column='1'/>
+        <parameter type-id='385b8018' name='bus_token' filepath='kernel/irq/irqdomain.c' line='373' column='1'/>
+        <return type-id='7544e824'/>
+      </function-decl>
+      <function-decl name='irq_get_irq_data' mangled-name='irq_get_irq_data' filepath='kernel/irq/chip.c' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_get_irq_data'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='159' column='1'/>
+        <return type-id='1c475548'/>
+      </function-decl>
+      <function-decl name='irq_modify_status' mangled-name='irq_modify_status' filepath='include/linux/irq.h' line='761' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_modify_status'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_of_parse_and_map' mangled-name='irq_of_parse_and_map' filepath='include/linux/of_irq.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_of_parse_and_map'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='irq_set_affinity_hint' mangled-name='irq_set_affinity_hint' filepath='kernel/irq/manage.c' line='390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_affinity_hint'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='390' column='1'/>
+        <parameter type-id='5f8a1ac4' name='m' filepath='kernel/irq/manage.c' line='390' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_set_chained_handler_and_data' mangled-name='irq_set_chained_handler_and_data' filepath='include/linux/irq.h' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chained_handler_and_data'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='cdb741d3'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_set_chip_and_handler_name' mangled-name='irq_set_chip_and_handler_name' filepath='include/linux/irq.h' line='713' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chip_and_handler_name'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8846a616'/>
+        <parameter type-id='cdb741d3'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='irq_set_chip_data' mangled-name='irq_set_chip_data' filepath='kernel/irq/chip.c' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chip_data'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='146' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/irq/chip.c' line='146' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_set_irq_type' mangled-name='irq_set_irq_type' filepath='kernel/irq/chip.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_irq_type'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='69' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='kernel/irq/chip.c' line='69' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='irq_set_irq_wake' mangled-name='irq_set_irq_wake' filepath='kernel/irq/manage.c' line='773' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_irq_wake'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='773' column='1'/>
+        <parameter type-id='f0981eeb' name='on' filepath='kernel/irq/manage.c' line='773' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='irq_stat' type-id='715fcff2' mangled-name='irq_stat' visibility='default' filepath='kernel/softirq.c' line='54' column='1' elf-symbol-id='irq_stat'/>
+      <function-decl name='irq_to_desc' mangled-name='irq_to_desc' filepath='include/linux/irqnr.h' line='9' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_to_desc'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='76c7d88b'/>
+      </function-decl>
+      <function-decl name='irq_work_queue' mangled-name='irq_work_queue' filepath='include/linux/irq_work.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_work_queue'>
+        <parameter type-id='44bef697'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='irq_work_sync' mangled-name='irq_work_sync' filepath='include/linux/irq_work.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_work_sync'>
+        <parameter type-id='44bef697'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='is_vmalloc_addr' mangled-name='is_vmalloc_addr' filepath='include/linux/mm.h' line='806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='is_vmalloc_addr'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='jiffies64_to_msecs' mangled-name='jiffies64_to_msecs' filepath='kernel/time/time.c' line='701' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='jiffies64_to_msecs'>
+        <parameter type-id='49c81889' name='j' filepath='kernel/time/time.c' line='701' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='jiffies_to_msecs' mangled-name='jiffies_to_msecs' filepath='kernel/time/time.c' line='374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='jiffies_to_msecs'>
+        <parameter type-id='9cbd1c16' name='j' filepath='kernel/time/time.c' line='374' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='jiffies_to_usecs' mangled-name='jiffies_to_usecs' filepath='kernel/time/time.c' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='jiffies_to_usecs'>
+        <parameter type-id='9cbd1c16' name='j' filepath='kernel/time/time.c' line='391' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <var-decl name='kasan_flag_enabled' type-id='237c0d27' mangled-name='kasan_flag_enabled' visibility='default' filepath='mm/kasan/hw_tags.c' line='56' column='1' elf-symbol-id='kasan_flag_enabled'/>
+      <function-decl name='kasprintf' mangled-name='kasprintf' filepath='include/linux/kernel.h' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kasprintf'>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='kern_mount' mangled-name='kern_mount' filepath='include/linux/fs.h' line='2362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kern_mount'>
+        <parameter type-id='21e53d44'/>
+        <return type-id='549da823'/>
+      </function-decl>
+      <function-decl name='kern_unmount' mangled-name='kern_unmount' filepath='fs/namespace.c' line='3896' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kern_unmount'>
+        <parameter type-id='549da823' name='mnt' filepath='fs/namespace.c' line='3896' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kernel_bind' mangled-name='kernel_bind' filepath='net/socket.c' line='3392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_bind'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3392' column='1'/>
+        <parameter type-id='5c0abad8' name='addr' filepath='net/socket.c' line='3392' column='1'/>
+        <parameter type-id='95e97e5e' name='addrlen' filepath='net/socket.c' line='3392' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kernel_connect' mangled-name='kernel_connect' filepath='net/socket.c' line='3461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_connect'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3461' column='1'/>
+        <parameter type-id='5c0abad8' name='addr' filepath='net/socket.c' line='3461' column='1'/>
+        <parameter type-id='95e97e5e' name='addrlen' filepath='net/socket.c' line='3461' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='3462' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='kernel_cpustat' type-id='7b5f27b3' mangled-name='kernel_cpustat' visibility='default' filepath='kernel/sched/core.c' line='4159' column='1' elf-symbol-id='kernel_cpustat'/>
+      <function-decl name='kernel_getsockname' mangled-name='kernel_getsockname' filepath='net/socket.c' line='3477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_getsockname'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3477' column='1'/>
+        <parameter type-id='5c0abad8' name='addr' filepath='net/socket.c' line='3477' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='kernel_kobj' type-id='d30bdc51' mangled-name='kernel_kobj' visibility='default' filepath='kernel/ksysfs.c' line='208' column='1' elf-symbol-id='kernel_kobj'/>
+      <function-decl name='kernel_neon_begin' mangled-name='kernel_neon_begin' filepath='arch/arm64/kernel/fpsimd.c' line='1272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_neon_begin'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kernel_neon_end' mangled-name='kernel_neon_end' filepath='arch/arm64/kernel/fpsimd.c' line='1298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_neon_end'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kernel_recvmsg' mangled-name='kernel_recvmsg' filepath='net/socket.c' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_recvmsg'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='924' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/socket.c' line='924' column='1'/>
+        <parameter type-id='9c68341e' name='vec' filepath='net/socket.c' line='925' column='1'/>
+        <parameter type-id='b59d7dce' name='num' filepath='net/socket.c' line='925' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='net/socket.c' line='925' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='925' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kernel_restart' mangled-name='kernel_restart' filepath='kernel/reboot.c' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_restart'>
+        <parameter type-id='26a90f95' name='cmd' filepath='kernel/reboot.c' line='246' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kernel_sendmsg' mangled-name='kernel_sendmsg' filepath='net/socket.c' line='688' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_sendmsg'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='688' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/socket.c' line='688' column='1'/>
+        <parameter type-id='9c68341e' name='vec' filepath='net/socket.c' line='689' column='1'/>
+        <parameter type-id='b59d7dce' name='num' filepath='net/socket.c' line='689' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='net/socket.c' line='689' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kernel_sock_shutdown' mangled-name='kernel_sock_shutdown' filepath='net/socket.c' line='3554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_sock_shutdown'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3554' column='1'/>
+        <parameter type-id='45c08bac' name='how' filepath='net/socket.c' line='3554' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kfree' mangled-name='kfree' filepath='include/linux/slab.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kfree_const' mangled-name='kfree_const' filepath='include/linux/string.h' line='174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_const'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kfree_sensitive' mangled-name='kfree_sensitive' filepath='mm/slab_common.c' line='1148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_sensitive'>
+        <parameter type-id='eaa32e2f' name='p' filepath='mm/slab_common.c' line='1148' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kfree_skb' mangled-name='kfree_skb' filepath='include/linux/skbuff.h' line='1062' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_skb'>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kill_anon_super' mangled-name='kill_anon_super' filepath='fs/super.c' line='1105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_anon_super'>
+        <parameter type-id='42c8f564' name='sb' filepath='fs/super.c' line='1105' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kill_fasync' mangled-name='kill_fasync' filepath='include/linux/fs.h' line='1362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_fasync'>
+        <parameter type-id='dc750055'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kill_litter_super' mangled-name='kill_litter_super' filepath='fs/super.c' line='1113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_litter_super'>
+        <parameter type-id='42c8f564' name='sb' filepath='fs/super.c' line='1113' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='kimage_voffset' type-id='91ce1af9' mangled-name='kimage_voffset' visibility='default' filepath='arch/arm64/mm/mmu.c' line='49' column='1' elf-symbol-id='kimage_voffset'/>
+      <function-decl name='kiocb_set_cancel_fn' mangled-name='kiocb_set_cancel_fn' filepath='fs/aio.c' line='562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kiocb_set_cancel_fn'>
+        <parameter type-id='80f25feb' name='iocb' filepath='fs/aio.c' line='562' column='1'/>
+        <parameter type-id='09896a23' name='cancel' filepath='fs/aio.c' line='562' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='kmalloc_caches' type-id='5a527497' mangled-name='kmalloc_caches' visibility='default' filepath='mm/slab_common.c' line='594' column='1' elf-symbol-id='kmalloc_caches'/>
+      <function-decl name='kmalloc_order' mangled-name='kmalloc_order' filepath='mm/slab_common.c' line='834' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmalloc_order'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/slab_common.c' line='834' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='mm/slab_common.c' line='834' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/slab_common.c' line='834' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='kmalloc_order_trace' mangled-name='kmalloc_order_trace' filepath='include/linux/slab.h' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmalloc_order_trace'>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='kmem_cache_alloc' mangled-name='kmem_cache_alloc' filepath='include/linux/slab.h' line='390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc'>
+        <parameter type-id='f3b4aca8'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='kmem_cache_alloc_trace' mangled-name='kmem_cache_alloc_trace' filepath='include/linux/slab.h' line='428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc_trace'>
+        <parameter type-id='f3b4aca8'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='kmem_cache_create' mangled-name='kmem_cache_create' filepath='mm/slab_common.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create'>
+        <parameter type-id='80f4b756' name='name' filepath='mm/slab_common.c' line='408' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='mm/slab_common.c' line='408' column='1'/>
+        <parameter type-id='f0981eeb' name='align' filepath='mm/slab_common.c' line='408' column='1'/>
+        <parameter type-id='f7fe96cb' name='flags' filepath='mm/slab_common.c' line='409' column='1'/>
+        <parameter type-id='b7f9d8e6' name='ctor' filepath='mm/slab_common.c' line='409' column='1'/>
+        <return type-id='f3b4aca8'/>
+      </function-decl>
+      <function-decl name='kmem_cache_create_usercopy' mangled-name='kmem_cache_create_usercopy' filepath='include/linux/slab.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create_usercopy'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f7fe96cb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b7f9d8e6'/>
+        <return type-id='f3b4aca8'/>
+      </function-decl>
+      <function-decl name='kmem_cache_destroy' mangled-name='kmem_cache_destroy' filepath='include/linux/slab.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_destroy'>
+        <parameter type-id='f3b4aca8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kmem_cache_free' mangled-name='kmem_cache_free' filepath='include/linux/slab.h' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_free'>
+        <parameter type-id='f3b4aca8'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kmemdup' mangled-name='kmemdup' filepath='include/linux/string.h' line='179' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='kmemdup_nul' mangled-name='kmemdup_nul' filepath='include/linux/string.h' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup_nul'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <var-decl name='kobj_sysfs_ops' type-id='0f840455' mangled-name='kobj_sysfs_ops' visibility='default' filepath='lib/kobject.c' line='860' column='1' elf-symbol-id='kobj_sysfs_ops'/>
+      <function-decl name='kobject_add' mangled-name='kobject_add' filepath='include/linux/kobject.h' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_add'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kobject_create_and_add' mangled-name='kobject_create_and_add' filepath='include/linux/kobject.h' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_create_and_add'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='d30bdc51'/>
+        <return type-id='d30bdc51'/>
+      </function-decl>
+      <function-decl name='kobject_del' mangled-name='kobject_del' filepath='include/linux/kobject.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_del'>
+        <parameter type-id='d30bdc51'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kobject_get' mangled-name='kobject_get' filepath='include/linux/kobject.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_get'>
+        <parameter type-id='d30bdc51'/>
+        <return type-id='d30bdc51'/>
+      </function-decl>
+      <function-decl name='kobject_init' mangled-name='kobject_init' filepath='include/linux/kobject.h' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_init'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='c48b394e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kobject_init_and_add' mangled-name='kobject_init_and_add' filepath='include/linux/kobject.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_init_and_add'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='c48b394e'/>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kobject_put' mangled-name='kobject_put' filepath='include/linux/kobject.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_put'>
+        <parameter type-id='d30bdc51'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kobject_uevent' mangled-name='kobject_uevent' filepath='lib/kobject_uevent.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_uevent'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject_uevent.c' line='640' column='1'/>
+        <parameter type-id='7d635811' name='action' filepath='lib/kobject_uevent.c' line='640' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kobject_uevent_env' mangled-name='kobject_uevent_env' filepath='include/linux/kobject.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_uevent_env'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='7d635811'/>
+        <parameter type-id='9b23c9ad'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='krealloc' mangled-name='krealloc' filepath='include/linux/slab.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='krealloc'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='ksize' mangled-name='ksize' filepath='mm/slab_common.c' line='1174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ksize'>
+        <parameter type-id='eaa32e2f' name='objp' filepath='mm/slab_common.c' line='1174' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <var-decl name='kstat' type-id='153750ef' mangled-name='kstat' visibility='default' filepath='kernel/sched/core.c' line='4158' column='1' elf-symbol-id='kstat'/>
+      <function-decl name='kstrdup' mangled-name='kstrdup' filepath='include/linux/string.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='kstrdup_const' mangled-name='kstrdup_const' filepath='include/linux/string.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup_const'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='kstrdup_quotable_cmdline' mangled-name='kstrdup_quotable_cmdline' filepath='lib/string_helpers.c' line='597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup_quotable_cmdline'>
+        <parameter type-id='f23e2572' name='task' filepath='lib/string_helpers.c' line='597' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/string_helpers.c' line='597' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='kstrndup' mangled-name='kstrndup' filepath='include/linux/string.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrndup'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='kstrtobool' mangled-name='kstrtobool' filepath='include/linux/string.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtobool'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='d8e6b335'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtobool_from_user' mangled-name='kstrtobool_from_user' filepath='include/linux/kernel.h' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtobool_from_user'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='d8e6b335'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtoint' mangled-name='kstrtoint' filepath='include/linux/kernel.h' line='393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoint'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtoint_from_user' mangled-name='kstrtoint_from_user' filepath='include/linux/kernel.h' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoint_from_user'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtol_from_user' mangled-name='kstrtol_from_user' filepath='lib/kstrtox.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtol_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='407' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='407' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='407' column='1'/>
+        <parameter type-id='3ccc2590' name='res' filepath='lib/kstrtox.c' line='407' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtoll' mangled-name='kstrtoll' filepath='include/linux/kernel.h' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoll'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8b97c2dc'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtos8' mangled-name='kstrtos8' filepath='lib/kstrtox.c' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtos8'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='311' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='311' column='1'/>
+        <parameter type-id='01b75fec' name='res' filepath='lib/kstrtox.c' line='311' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtou16' mangled-name='kstrtou16' filepath='include/linux/kernel.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou16'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='26d4d46f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtou8' mangled-name='kstrtou8' filepath='include/linux/kernel.h' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou8'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8bff8096'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtou8_from_user' mangled-name='kstrtou8_from_user' filepath='lib/kstrtox.c' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou8_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='412' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='412' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='412' column='1'/>
+        <parameter type-id='8bff8096' name='res' filepath='lib/kstrtox.c' line='412' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtouint' mangled-name='kstrtouint' filepath='include/linux/kernel.h' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtouint'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='807869d3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtouint_from_user' mangled-name='kstrtouint_from_user' filepath='include/linux/kernel.h' line='425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtouint_from_user'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='807869d3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtoul_from_user' mangled-name='kstrtoul_from_user' filepath='include/linux/kernel.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoul_from_user'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='1d2c2b85'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtoull' mangled-name='kstrtoull' filepath='include/linux/kernel.h' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoull'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='a0c47697'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kstrtoull_from_user' mangled-name='kstrtoull_from_user' filepath='include/linux/kernel.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoull_from_user'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='a0c47697'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kthread_bind' mangled-name='kthread_bind' filepath='kernel/kthread.c' line='490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_bind'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/kthread.c' line='490' column='1'/>
+        <parameter type-id='f0981eeb' name='cpu' filepath='kernel/kthread.c' line='490' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_bind_mask' mangled-name='kthread_bind_mask' filepath='include/linux/kthread.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_bind_mask'>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='5f8a1ac4'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_cancel_delayed_work_sync' mangled-name='kthread_cancel_delayed_work_sync' filepath='kernel/kthread.c' line='1278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_cancel_delayed_work_sync'>
+        <parameter type-id='d56697f1' name='dwork' filepath='kernel/kthread.c' line='1278' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='kthread_cancel_work_sync' mangled-name='kthread_cancel_work_sync' filepath='kernel/kthread.c' line='1263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_cancel_work_sync'>
+        <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='1263' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='kthread_create_on_node' mangled-name='kthread_create_on_node' filepath='include/linux/kthread.h' line='11' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_create_on_node'>
+        <parameter type-id='b9b212f5'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='f23e2572'/>
+      </function-decl>
+      <function-decl name='kthread_create_worker' mangled-name='kthread_create_worker' filepath='kernel/kthread.c' line='810' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_create_worker'>
+        <parameter type-id='f0981eeb' name='flags' filepath='kernel/kthread.c' line='810' column='1'/>
+        <parameter type-id='80f4b756' name='namefmt' filepath='kernel/kthread.c' line='810' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='c41f4539'/>
+      </function-decl>
+      <function-decl name='kthread_delayed_work_timer_fn' mangled-name='kthread_delayed_work_timer_fn' filepath='kernel/kthread.c' line='926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_delayed_work_timer_fn'>
+        <parameter type-id='9248e67f' name='t' filepath='kernel/kthread.c' line='926' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_destroy_worker' mangled-name='kthread_destroy_worker' filepath='kernel/kthread.c' line='1311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_destroy_worker'>
+        <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='1311' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_flush_work' mangled-name='kthread_flush_work' filepath='kernel/kthread.c' line='1042' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_flush_work'>
+        <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='1042' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_flush_worker' mangled-name='kthread_flush_worker' filepath='kernel/kthread.c' line='1291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_flush_worker'>
+        <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='1291' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_mod_delayed_work' mangled-name='kthread_mod_delayed_work' filepath='kernel/kthread.c' line='1151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_mod_delayed_work'>
+        <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='1151' column='1'/>
+        <parameter type-id='d56697f1' name='dwork' filepath='kernel/kthread.c' line='1152' column='1'/>
+        <parameter type-id='7359adad' name='delay' filepath='kernel/kthread.c' line='1153' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='kthread_queue_delayed_work' mangled-name='kthread_queue_delayed_work' filepath='kernel/kthread.c' line='1004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_queue_delayed_work'>
+        <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='1004' column='1'/>
+        <parameter type-id='d56697f1' name='dwork' filepath='kernel/kthread.c' line='1005' column='1'/>
+        <parameter type-id='7359adad' name='delay' filepath='kernel/kthread.c' line='1006' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='kthread_queue_work' mangled-name='kthread_queue_work' filepath='kernel/kthread.c' line='902' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_queue_work'>
+        <parameter type-id='c41f4539' name='worker' filepath='kernel/kthread.c' line='902' column='1'/>
+        <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='903' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='kthread_should_stop' mangled-name='kthread_should_stop' filepath='include/linux/kthread.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_should_stop'>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='kthread_stop' mangled-name='kthread_stop' filepath='include/linux/kthread.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_stop'>
+        <parameter type-id='f23e2572'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='kthread_unuse_mm' mangled-name='kthread_unuse_mm' filepath='kernel/kthread.c' line='1365' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_unuse_mm'>
+        <parameter type-id='df4b7819' name='mm' filepath='kernel/kthread.c' line='1365' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_use_mm' mangled-name='kthread_use_mm' filepath='kernel/kthread.c' line='1330' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_use_mm'>
+        <parameter type-id='df4b7819' name='mm' filepath='kernel/kthread.c' line='1330' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kthread_worker_fn' mangled-name='kthread_worker_fn' filepath='kernel/kthread.c' line='717' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_worker_fn'>
+        <parameter type-id='eaa32e2f' name='worker_ptr' filepath='kernel/kthread.c' line='717' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ktime_add_safe' mangled-name='ktime_add_safe' filepath='kernel/time/hrtimer.c' line='327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_add_safe'>
+        <parameter type-id='ddb8523f' name='lhs' filepath='kernel/time/hrtimer.c' line='327' column='1'/>
+        <parameter type-id='ddb8523f' name='rhs' filepath='kernel/time/hrtimer.c' line='327' column='1'/>
+        <return type-id='fbc017ef'/>
+      </function-decl>
+      <function-decl name='ktime_get' mangled-name='ktime_get' filepath='include/linux/timekeeping.h' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get'>
+        <return type-id='fbc017ef'/>
+      </function-decl>
+      <function-decl name='ktime_get_mono_fast_ns' mangled-name='ktime_get_mono_fast_ns' filepath='include/linux/timekeeping.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_mono_fast_ns'>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='ktime_get_raw' mangled-name='ktime_get_raw' filepath='kernel/time/timekeeping.c' line='928' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_raw'>
+        <return type-id='fbc017ef'/>
+      </function-decl>
+      <function-decl name='ktime_get_raw_ts64' mangled-name='ktime_get_raw_ts64' filepath='kernel/time/timekeeping.c' line='1492' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_raw_ts64'>
+        <parameter type-id='4151733d' name='ts' filepath='kernel/time/timekeeping.c' line='1492' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ktime_get_real_seconds' mangled-name='ktime_get_real_seconds' filepath='kernel/time/timekeeping.c' line='1006' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_real_seconds'>
+        <return type-id='1afd27ac'/>
+      </function-decl>
+      <function-decl name='ktime_get_real_ts64' mangled-name='ktime_get_real_ts64' filepath='include/linux/timekeeping.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_real_ts64'>
+        <parameter type-id='4151733d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ktime_get_snapshot' mangled-name='ktime_get_snapshot' filepath='include/linux/timekeeping.h' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_snapshot'>
+        <parameter type-id='9e33b18d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ktime_get_ts64' mangled-name='ktime_get_ts64' filepath='kernel/time/timekeeping.c' line='954' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_ts64'>
+        <parameter type-id='4151733d' name='ts' filepath='kernel/time/timekeeping.c' line='954' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ktime_get_with_offset' mangled-name='ktime_get_with_offset' filepath='include/linux/timekeeping.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_with_offset'>
+        <parameter type-id='73bb584e'/>
+        <return type-id='fbc017ef'/>
+      </function-decl>
+      <function-decl name='kvasprintf' mangled-name='kvasprintf' filepath='include/linux/kernel.h' line='489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvasprintf'>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2aee9912'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='kvfree' mangled-name='kvfree' filepath='include/linux/mm.h' line='848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kvfree_call_rcu' mangled-name='kvfree_call_rcu' filepath='kernel/rcu/tree.c' line='3466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree_call_rcu'>
+        <parameter type-id='69c138b1' name='head' filepath='kernel/rcu/tree.c' line='3466' column='1'/>
+        <parameter type-id='4edd56e3' name='func' filepath='kernel/rcu/tree.c' line='3466' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='kvmalloc_node' mangled-name='kvmalloc_node' filepath='include/linux/mm.h' line='819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvmalloc_node'>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='led_classdev_register_ext' mangled-name='led_classdev_register_ext' filepath='include/linux/leds.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_classdev_register_ext'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='bd1c8eb6'/>
+        <parameter type-id='eebb8ee8'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='led_classdev_unregister' mangled-name='led_classdev_unregister' filepath='include/linux/leds.h' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_classdev_unregister'>
+        <parameter type-id='bd1c8eb6'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='led_set_brightness_nosleep' mangled-name='led_set_brightness_nosleep' filepath='drivers/leds/led-core.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_set_brightness_nosleep'>
+        <parameter type-id='bd1c8eb6' name='led_cdev' filepath='drivers/leds/led-core.c' line='284' column='1'/>
+        <parameter type-id='fa598f35' name='value' filepath='drivers/leds/led-core.c' line='285' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='led_trigger_event' mangled-name='led_trigger_event' filepath='include/linux/leds.h' line='386' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_event'>
+        <parameter type-id='db6d90a1'/>
+        <parameter type-id='fa598f35'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='led_trigger_register' mangled-name='led_trigger_register' filepath='drivers/leds/led-triggers.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_register'>
+        <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='283' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='led_trigger_unregister' mangled-name='led_trigger_unregister' filepath='drivers/leds/led-triggers.c' line='323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_unregister'>
+        <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='323' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='list_sort' mangled-name='list_sort' filepath='include/linux/list_sort.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_sort'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='e84b031a'/>
+        <parameter type-id='9c752ec9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='llist_add_batch' mangled-name='llist_add_batch' filepath='include/linux/llist.h' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='llist_add_batch'>
+        <parameter type-id='023b769e'/>
+        <parameter type-id='023b769e'/>
+        <parameter type-id='b0222d74'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='lock_sock_nested' mangled-name='lock_sock_nested' filepath='include/net/sock.h' line='1592' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lock_sock_nested'>
+        <parameter type-id='f772df6d'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='log_abnormal_wakeup_reason' mangled-name='log_abnormal_wakeup_reason' filepath='kernel/power/wakeup_reason.c' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='log_abnormal_wakeup_reason'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/power/wakeup_reason.c' line='249' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='log_threaded_irq_wakeup_reason' mangled-name='log_threaded_irq_wakeup_reason' filepath='kernel/power/wakeup_reason.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='log_threaded_irq_wakeup_reason'>
+        <parameter type-id='95e97e5e' name='irq' filepath='kernel/power/wakeup_reason.c' line='173' column='1'/>
+        <parameter type-id='95e97e5e' name='parent_irq' filepath='kernel/power/wakeup_reason.c' line='173' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='loops_per_jiffy' type-id='7359adad' mangled-name='loops_per_jiffy' visibility='default' filepath='init/main.c' line='231' column='1' elf-symbol-id='loops_per_jiffy'/>
+      <function-decl name='lzo1x_1_compress' mangled-name='lzo1x_1_compress' filepath='lib/lzo/lzo1x_compress.c' line='381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzo1x_1_compress'>
+        <parameter type-id='354f7eb9' name='in' filepath='lib/lzo/lzo1x_compress.c' line='381' column='1'/>
+        <parameter type-id='b59d7dce' name='in_len' filepath='lib/lzo/lzo1x_compress.c' line='381' column='1'/>
+        <parameter type-id='cf536864' name='out' filepath='lib/lzo/lzo1x_compress.c' line='382' column='1'/>
+        <parameter type-id='78c01427' name='out_len' filepath='lib/lzo/lzo1x_compress.c' line='382' column='1'/>
+        <parameter type-id='eaa32e2f' name='wrkmem' filepath='lib/lzo/lzo1x_compress.c' line='383' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='lzo1x_decompress_safe' mangled-name='lzo1x_decompress_safe' filepath='include/linux/lzo.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzo1x_decompress_safe'>
+        <parameter type-id='354f7eb9'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='cf536864'/>
+        <parameter type-id='78c01427'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='lzorle1x_1_compress' mangled-name='lzorle1x_1_compress' filepath='lib/lzo/lzo1x_compress.c' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzorle1x_1_compress'>
+        <parameter type-id='354f7eb9' name='in' filepath='lib/lzo/lzo1x_compress.c' line='388' column='1'/>
+        <parameter type-id='b59d7dce' name='in_len' filepath='lib/lzo/lzo1x_compress.c' line='388' column='1'/>
+        <parameter type-id='cf536864' name='out' filepath='lib/lzo/lzo1x_compress.c' line='389' column='1'/>
+        <parameter type-id='78c01427' name='out_len' filepath='lib/lzo/lzo1x_compress.c' line='389' column='1'/>
+        <parameter type-id='eaa32e2f' name='wrkmem' filepath='lib/lzo/lzo1x_compress.c' line='390' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mac_pton' mangled-name='mac_pton' filepath='lib/net_utils.c' line='7' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mac_pton'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/net_utils.c' line='7' column='1'/>
+        <parameter type-id='8bff8096' name='mac' filepath='lib/net_utils.c' line='7' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='mbox_chan_received_data' mangled-name='mbox_chan_received_data' filepath='drivers/mailbox/mailbox.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_chan_received_data'>
+        <parameter type-id='339c87e8' name='chan' filepath='drivers/mailbox/mailbox.c' line='152' column='1'/>
+        <parameter type-id='eaa32e2f' name='mssg' filepath='drivers/mailbox/mailbox.c' line='152' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mbox_client_txdone' mangled-name='mbox_client_txdone' filepath='include/linux/mailbox_client.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_client_txdone'>
+        <parameter type-id='339c87e8'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mbox_controller_register' mangled-name='mbox_controller_register' filepath='drivers/mailbox/mailbox.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_controller_register'>
+        <parameter type-id='fb648468' name='mbox' filepath='drivers/mailbox/mailbox.c' line='478' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mbox_controller_unregister' mangled-name='mbox_controller_unregister' filepath='drivers/mailbox/mailbox.c' line='529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_controller_unregister'>
+        <parameter type-id='fb648468' name='mbox' filepath='drivers/mailbox/mailbox.c' line='529' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mbox_free_channel' mangled-name='mbox_free_channel' filepath='include/linux/mailbox_client.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_free_channel'>
+        <parameter type-id='339c87e8'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mbox_request_channel' mangled-name='mbox_request_channel' filepath='include/linux/mailbox_client.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_request_channel'>
+        <parameter type-id='aeae13b9'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='339c87e8'/>
+      </function-decl>
+      <function-decl name='mbox_send_message' mangled-name='mbox_send_message' filepath='include/linux/mailbox_client.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_send_message'>
+        <parameter type-id='339c87e8'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='memchr_inv' mangled-name='memchr_inv' filepath='include/linux/string.h' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memchr_inv'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='memdup_user' mangled-name='memdup_user' filepath='include/linux/string.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memdup_user'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='memdup_user_nul' mangled-name='memdup_user_nul' filepath='include/linux/string.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memdup_user_nul'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='memparse' mangled-name='memparse' filepath='include/linux/kernel.h' line='500' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memparse'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='9b23c9ad'/>
+        <return type-id='0d77e947'/>
+      </function-decl>
+      <function-decl name='mempool_alloc' mangled-name='mempool_alloc' filepath='mm/mempool.c' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_alloc'>
+        <parameter type-id='78713e8f' name='pool' filepath='mm/mempool.c' line='375' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/mempool.c' line='375' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='mempool_alloc_slab' mangled-name='mempool_alloc_slab' filepath='mm/mempool.c' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_alloc_slab'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/mempool.c' line='509' column='1'/>
+        <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='509' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='mempool_create' mangled-name='mempool_create' filepath='mm/mempool.c' line='253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_create'>
+        <parameter type-id='95e97e5e' name='min_nr' filepath='mm/mempool.c' line='253' column='1'/>
+        <parameter type-id='8bf6d789' name='alloc_fn' filepath='mm/mempool.c' line='253' column='1'/>
+        <parameter type-id='a4c19f22' name='free_fn' filepath='mm/mempool.c' line='254' column='1'/>
+        <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='254' column='1'/>
+        <return type-id='78713e8f'/>
+      </function-decl>
+      <function-decl name='mempool_create_node' mangled-name='mempool_create_node' filepath='mm/mempool.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_create_node'>
+        <parameter type-id='95e97e5e' name='min_nr' filepath='mm/mempool.c' line='261' column='1'/>
+        <parameter type-id='8bf6d789' name='alloc_fn' filepath='mm/mempool.c' line='261' column='1'/>
+        <parameter type-id='a4c19f22' name='free_fn' filepath='mm/mempool.c' line='262' column='1'/>
+        <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='262' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/mempool.c' line='263' column='1'/>
+        <parameter type-id='95e97e5e' name='node_id' filepath='mm/mempool.c' line='263' column='1'/>
+        <return type-id='78713e8f'/>
+      </function-decl>
+      <function-decl name='mempool_destroy' mangled-name='mempool_destroy' filepath='mm/mempool.c' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_destroy'>
+        <parameter type-id='78713e8f' name='pool' filepath='mm/mempool.c' line='170' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mempool_free' mangled-name='mempool_free' filepath='mm/mempool.c' line='452' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_free'>
+        <parameter type-id='eaa32e2f' name='element' filepath='mm/mempool.c' line='452' column='1'/>
+        <parameter type-id='78713e8f' name='pool' filepath='mm/mempool.c' line='452' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mempool_free_slab' mangled-name='mempool_free_slab' filepath='mm/mempool.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_free_slab'>
+        <parameter type-id='eaa32e2f' name='element' filepath='mm/mempool.c' line='517' column='1'/>
+        <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='517' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mempool_kfree' mangled-name='mempool_kfree' filepath='mm/mempool.c' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_kfree'>
+        <parameter type-id='eaa32e2f' name='element' filepath='mm/mempool.c' line='535' column='1'/>
+        <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='535' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mempool_kmalloc' mangled-name='mempool_kmalloc' filepath='mm/mempool.c' line='528' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_kmalloc'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/mempool.c' line='528' column='1'/>
+        <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='528' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='memremap' mangled-name='memremap' filepath='include/linux/io.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memremap'>
+        <parameter type-id='acc63fdf'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='memset64' mangled-name='memset64' filepath='lib/string.c' line='863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memset64'>
+        <parameter type-id='5d6479ae' name='s' filepath='lib/string.c' line='863' column='1'/>
+        <parameter type-id='9c313c2d' name='v' filepath='lib/string.c' line='863' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='863' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <var-decl name='memstart_addr' type-id='9b7c55ef' mangled-name='memstart_addr' visibility='default' filepath='arch/arm64/mm/init.c' line='53' column='1' elf-symbol-id='memstart_addr'/>
+      <function-decl name='memunmap' mangled-name='memunmap' filepath='kernel/iomem.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memunmap'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='kernel/iomem.c' line='122' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mfd_add_devices' mangled-name='mfd_add_devices' filepath='drivers/mfd/mfd-core.c' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mfd_add_devices'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/mfd/mfd-core.c' line='334' column='1'/>
+        <parameter type-id='95e97e5e' name='id' filepath='drivers/mfd/mfd-core.c' line='334' column='1'/>
+        <parameter type-id='1447e860' name='cells' filepath='drivers/mfd/mfd-core.c' line='335' column='1'/>
+        <parameter type-id='95e97e5e' name='n_devs' filepath='drivers/mfd/mfd-core.c' line='335' column='1'/>
+        <parameter type-id='c9d64c0d' name='mem_base' filepath='drivers/mfd/mfd-core.c' line='336' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/mfd/mfd-core.c' line='337' column='1'/>
+        <parameter type-id='7544e824' name='domain' filepath='drivers/mfd/mfd-core.c' line='337' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mfd_remove_devices' mangled-name='mfd_remove_devices' filepath='drivers/mfd/mfd-core.c' line='389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mfd_remove_devices'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/mfd/mfd-core.c' line='389' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mii_ethtool_get_link_ksettings' mangled-name='mii_ethtool_get_link_ksettings' filepath='drivers/net/mii.c' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mii_ethtool_get_link_ksettings'>
+        <parameter type-id='f0150b1d' name='mii' filepath='drivers/net/mii.c' line='145' column='1'/>
+        <parameter type-id='70de91e2' name='cmd' filepath='drivers/net/mii.c' line='146' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mii_ethtool_gset' mangled-name='mii_ethtool_gset' filepath='drivers/net/mii.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mii_ethtool_gset'>
+        <parameter type-id='f0150b1d' name='mii' filepath='drivers/net/mii.c' line='55' column='1'/>
+        <parameter type-id='d064f511' name='ecmd' filepath='drivers/net/mii.c' line='55' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mii_ethtool_set_link_ksettings' mangled-name='mii_ethtool_set_link_ksettings' filepath='drivers/net/mii.c' line='329' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mii_ethtool_set_link_ksettings'>
+        <parameter type-id='f0150b1d' name='mii' filepath='drivers/net/mii.c' line='329' column='1'/>
+        <parameter type-id='b2c34f11' name='cmd' filepath='drivers/net/mii.c' line='330' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mii_nway_restart' mangled-name='mii_nway_restart' filepath='drivers/net/mii.c' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mii_nway_restart'>
+        <parameter type-id='f0150b1d' name='mii' filepath='drivers/net/mii.c' line='459' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_attach' mangled-name='mipi_dsi_attach' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_attach'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='323' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_compression_mode' mangled-name='mipi_dsi_compression_mode' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='563' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_compression_mode'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='563' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='563' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_create_packet' mangled-name='mipi_dsi_create_packet' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_create_packet'>
+        <parameter type-id='368a0122' name='packet' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='443' column='1'/>
+        <parameter type-id='001b67aa' name='msg' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='444' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_dcs_read' mangled-name='mipi_dsi_dcs_read' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='787' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_read'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='787' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='787' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='787' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='788' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_dcs_set_column_address' mangled-name='mipi_dsi_dcs_set_column_address' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='974' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_set_column_address'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='974' column='1'/>
+        <parameter type-id='1dc6a898' name='start' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='974' column='1'/>
+        <parameter type-id='1dc6a898' name='end' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='975' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_dcs_set_display_brightness' mangled-name='mipi_dsi_dcs_set_display_brightness' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_set_display_brightness'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1106' column='1'/>
+        <parameter type-id='1dc6a898' name='brightness' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1107' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_dcs_set_page_address' mangled-name='mipi_dsi_dcs_set_page_address' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='998' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_set_page_address'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='998' column='1'/>
+        <parameter type-id='1dc6a898' name='start' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='998' column='1'/>
+        <parameter type-id='1dc6a898' name='end' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='999' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_dcs_write_buffer' mangled-name='mipi_dsi_dcs_write_buffer' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='704' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_dcs_write_buffer'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='704' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='705' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='705' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_detach' mangled-name='mipi_dsi_detach' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_detach'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='338' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_device_register_full' mangled-name='mipi_dsi_device_register_full' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_device_register_full'>
+        <parameter type-id='c149fe34' name='host' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='201' column='1'/>
+        <parameter type-id='4b2c3420' name='info' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='202' column='1'/>
+        <return type-id='182be7cc'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_device_unregister' mangled-name='mipi_dsi_device_unregister' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_device_unregister'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='244' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_driver_register_full' mangled-name='mipi_dsi_driver_register_full' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_driver_register_full'>
+        <parameter type-id='0588e2f0' name='drv' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1178' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1179' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_driver_unregister' mangled-name='mipi_dsi_driver_unregister' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_driver_unregister'>
+        <parameter type-id='0588e2f0' name='drv' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='1201' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_host_register' mangled-name='mipi_dsi_host_register' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_host_register'>
+        <parameter type-id='c149fe34' name='host' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='281' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_host_unregister' mangled-name='mipi_dsi_host_unregister' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_host_unregister'>
+        <parameter type-id='c149fe34' name='host' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='309' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_packet_format_is_long' mangled-name='mipi_dsi_packet_format_is_long' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_packet_format_is_long'>
+        <parameter type-id='f9b06939' name='type' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='409' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='mipi_dsi_picture_parameter_set' mangled-name='mipi_dsi_picture_parameter_set' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='588' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mipi_dsi_picture_parameter_set'>
+        <parameter type-id='182be7cc' name='dsi' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='588' column='1'/>
+        <parameter type-id='2b4a193c' name='pps' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='589' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='misc_deregister' mangled-name='misc_deregister' filepath='include/linux/miscdevice.h' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='misc_deregister'>
+        <parameter type-id='c63257f7'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='misc_register' mangled-name='misc_register' filepath='include/linux/miscdevice.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='misc_register'>
+        <parameter type-id='c63257f7'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mm_trace_rss_stat' mangled-name='mm_trace_rss_stat' filepath='include/linux/mm.h' line='2040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_trace_rss_stat'>
+        <parameter type-id='df4b7819'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_add_host' mangled-name='mmc_add_host' filepath='drivers/mmc/core/host.c' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_add_host'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='525' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_alloc_host' mangled-name='mmc_alloc_host' filepath='drivers/mmc/core/host.c' line='448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_alloc_host'>
+        <parameter type-id='95e97e5e' name='extra' filepath='drivers/mmc/core/host.c' line='448' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/mmc/core/host.c' line='448' column='1'/>
+        <return type-id='dd575c43'/>
+      </function-decl>
+      <function-decl name='mmc_app_cmd' mangled-name='mmc_app_cmd' filepath='drivers/mmc/core/sd_ops.c' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_app_cmd'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/sd_ops.c' line='21' column='1'/>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/sd_ops.c' line='21' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_calc_max_discard' mangled-name='mmc_calc_max_discard' filepath='drivers/mmc/core/core.c' line='2014' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_calc_max_discard'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='2014' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='mmc_can_erase' mangled-name='mmc_can_erase' filepath='drivers/mmc/core/core.c' line='1878' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_can_erase'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='1878' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_can_gpio_cd' mangled-name='mmc_can_gpio_cd' filepath='drivers/mmc/core/slot-gpio.c' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_can_gpio_cd'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='208' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='mmc_can_secure_erase_trim' mangled-name='mmc_can_secure_erase_trim' filepath='drivers/mmc/core/core.c' line='1916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_can_secure_erase_trim'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='1916' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_can_trim' mangled-name='mmc_can_trim' filepath='drivers/mmc/core/core.c' line='1886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_can_trim'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='1886' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_cmdq_disable' mangled-name='mmc_cmdq_disable' filepath='drivers/mmc/core/mmc_ops.c' line='1026' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cmdq_disable'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='1026' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_cmdq_enable' mangled-name='mmc_cmdq_enable' filepath='drivers/mmc/core/mmc_ops.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cmdq_enable'>
+        <parameter type-id='13d38dcb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_cqe_post_req' mangled-name='mmc_cqe_post_req' filepath='drivers/mmc/core/core.c' line='516' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cqe_post_req'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='516' column='1'/>
+        <parameter type-id='47f117d4' name='mrq' filepath='drivers/mmc/core/core.c' line='516' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_cqe_recovery' mangled-name='mmc_cqe_recovery' filepath='drivers/mmc/core/core.c' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cqe_recovery'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='535' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_cqe_request_done' mangled-name='mmc_cqe_request_done' filepath='drivers/mmc/core/core.c' line='482' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cqe_request_done'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='482' column='1'/>
+        <parameter type-id='47f117d4' name='mrq' filepath='drivers/mmc/core/core.c' line='482' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_cqe_start_req' mangled-name='mmc_cqe_start_req' filepath='drivers/mmc/core/core.c' line='432' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cqe_start_req'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='432' column='1'/>
+        <parameter type-id='47f117d4' name='mrq' filepath='drivers/mmc/core/core.c' line='432' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_crypto_prepare_req' mangled-name='mmc_crypto_prepare_req' filepath='drivers/mmc/core/crypto.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_crypto_prepare_req'>
+        <parameter type-id='8a025557' name='mqrq' filepath='drivers/mmc/core/crypto.c' line='29' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_crypto_setup_queue' mangled-name='mmc_crypto_setup_queue' filepath='drivers/mmc/core/crypto.c' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_crypto_setup_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='drivers/mmc/core/crypto.c' line='22' column='1'/>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/crypto.c' line='22' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_detect_card_removed' mangled-name='mmc_detect_card_removed' filepath='drivers/mmc/core/core.c' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_detect_card_removed'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='2205' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_detect_change' mangled-name='mmc_detect_change' filepath='drivers/mmc/core/core.c' line='1485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_detect_change'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='1485' column='1'/>
+        <parameter type-id='7359adad' name='delay' filepath='drivers/mmc/core/core.c' line='1485' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_erase' mangled-name='mmc_erase' filepath='drivers/mmc/core/core.c' line='1818' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_erase'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='1818' column='1'/>
+        <parameter type-id='f0981eeb' name='from' filepath='drivers/mmc/core/core.c' line='1818' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='drivers/mmc/core/core.c' line='1818' column='1'/>
+        <parameter type-id='f0981eeb' name='arg' filepath='drivers/mmc/core/core.c' line='1819' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_erase_group_aligned' mangled-name='mmc_erase_group_aligned' filepath='drivers/mmc/core/core.c' line='1925' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_erase_group_aligned'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='1925' column='1'/>
+        <parameter type-id='f0981eeb' name='from' filepath='drivers/mmc/core/core.c' line='1925' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='drivers/mmc/core/core.c' line='1926' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_flush_cache' mangled-name='mmc_flush_cache' filepath='drivers/mmc/core/mmc_ops.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_flush_cache'>
+        <parameter type-id='13d38dcb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_free_host' mangled-name='mmc_free_host' filepath='drivers/mmc/core/host.c' line='577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_free_host'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='577' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_get_card' mangled-name='mmc_get_card' filepath='drivers/mmc/core/core.c' line='857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_get_card'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='857' column='1'/>
+        <parameter type-id='f1e196e0' name='ctx' filepath='drivers/mmc/core/core.c' line='857' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_get_ext_csd' mangled-name='mmc_get_ext_csd' filepath='drivers/mmc/core/mmc_ops.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_get_ext_csd'>
+        <parameter type-id='13d38dcb'/>
+        <parameter type-id='1f37a7f4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_gpio_get_cd' mangled-name='mmc_gpio_get_cd' filepath='drivers/mmc/core/slot-gpio.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpio_get_cd'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='80' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_gpio_get_ro' mangled-name='mmc_gpio_get_ro' filepath='drivers/mmc/core/slot-gpio.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpio_get_ro'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='69' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_gpiod_request_cd' mangled-name='mmc_gpiod_request_cd' filepath='include/linux/mmc/slot-gpio.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_cd'>
+        <parameter type-id='dd575c43'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_gpiod_request_cd_irq' mangled-name='mmc_gpiod_request_cd_irq' filepath='include/linux/mmc/slot-gpio.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_cd_irq'>
+        <parameter type-id='dd575c43'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_gpiod_request_ro' mangled-name='mmc_gpiod_request_ro' filepath='include/linux/mmc/slot-gpio.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_ro'>
+        <parameter type-id='dd575c43'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_hw_reset' mangled-name='mmc_hw_reset' filepath='drivers/mmc/core/core.c' line='2082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_hw_reset'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='2082' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_of_parse' mangled-name='mmc_of_parse' filepath='drivers/mmc/core/host.c' line='223' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_of_parse'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='223' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_of_parse_voltage' mangled-name='mmc_of_parse_voltage' filepath='drivers/mmc/core/host.c' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_of_parse_voltage'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/mmc/core/host.c' line='392' column='1'/>
+        <parameter type-id='f9409001' name='mask' filepath='drivers/mmc/core/host.c' line='392' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_put_card' mangled-name='mmc_put_card' filepath='drivers/mmc/core/core.c' line='868' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_put_card'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/core.c' line='868' column='1'/>
+        <parameter type-id='f1e196e0' name='ctx' filepath='drivers/mmc/core/core.c' line='868' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_register_driver' mangled-name='mmc_register_driver' filepath='drivers/mmc/core/bus.c' line='253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_register_driver'>
+        <parameter type-id='a46f3b5b' name='drv' filepath='drivers/mmc/core/bus.c' line='253' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_regulator_get_supply' mangled-name='mmc_regulator_get_supply' filepath='drivers/mmc/core/regulator.c' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_regulator_get_supply'>
+        <parameter type-id='dd575c43' name='mmc' filepath='drivers/mmc/core/regulator.c' line='245' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_regulator_set_ocr' mangled-name='mmc_regulator_set_ocr' filepath='drivers/mmc/core/regulator.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_regulator_set_ocr'>
+        <parameter type-id='dd575c43' name='mmc' filepath='drivers/mmc/core/regulator.c' line='106' column='1'/>
+        <parameter type-id='850c13f6' name='supply' filepath='drivers/mmc/core/regulator.c' line='107' column='1'/>
+        <parameter type-id='8efea9e5' name='vdd_bit' filepath='drivers/mmc/core/regulator.c' line='108' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_regulator_set_vqmmc' mangled-name='mmc_regulator_set_vqmmc' filepath='drivers/mmc/core/regulator.c' line='179' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_regulator_set_vqmmc'>
+        <parameter type-id='dd575c43' name='mmc' filepath='drivers/mmc/core/regulator.c' line='179' column='1'/>
+        <parameter type-id='3b590e48' name='ios' filepath='drivers/mmc/core/regulator.c' line='179' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_release_host' mangled-name='mmc_release_host' filepath='drivers/mmc/core/core.c' line='828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_release_host'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='828' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_remove_host' mangled-name='mmc_remove_host' filepath='drivers/mmc/core/host.c' line='556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_remove_host'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='556' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_request_done' mangled-name='mmc_request_done' filepath='drivers/mmc/core/core.c' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_request_done'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='139' column='1'/>
+        <parameter type-id='47f117d4' name='mrq' filepath='drivers/mmc/core/core.c' line='139' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_retune_pause' mangled-name='mmc_retune_pause' filepath='drivers/mmc/core/host.c' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_retune_pause'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='120' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_retune_release' mangled-name='mmc_retune_release' filepath='drivers/mmc/core/host.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_retune_release'>
+        <parameter type-id='dd575c43'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_retune_unpause' mangled-name='mmc_retune_unpause' filepath='drivers/mmc/core/host.c' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_retune_unpause'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='130' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_run_bkops' mangled-name='mmc_run_bkops' filepath='drivers/mmc/core/mmc_ops.c' line='949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_run_bkops'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='949' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_sanitize' mangled-name='mmc_sanitize' filepath='drivers/mmc/core/mmc_ops.c' line='1032' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_sanitize'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='1032' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_send_status' mangled-name='mmc_send_status' filepath='drivers/mmc/core/mmc_ops.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_send_status'>
+        <parameter type-id='13d38dcb'/>
+        <parameter type-id='f9409001'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_send_tuning' mangled-name='mmc_send_tuning' filepath='drivers/mmc/core/mmc_ops.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_send_tuning'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/mmc_ops.c' line='640' column='1'/>
+        <parameter type-id='19c2251e' name='opcode' filepath='drivers/mmc/core/mmc_ops.c' line='640' column='1'/>
+        <parameter type-id='7292109c' name='cmd_error' filepath='drivers/mmc/core/mmc_ops.c' line='640' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_set_data_timeout' mangled-name='mmc_set_data_timeout' filepath='drivers/mmc/core/core.c' line='649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_set_data_timeout'>
+        <parameter type-id='6de64ec1' name='data' filepath='drivers/mmc/core/core.c' line='649' column='1'/>
+        <parameter type-id='652034a8' name='card' filepath='drivers/mmc/core/core.c' line='649' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_start_request' mangled-name='mmc_start_request' filepath='drivers/mmc/core/core.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_start_request'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='336' column='1'/>
+        <parameter type-id='47f117d4' name='mrq' filepath='drivers/mmc/core/core.c' line='336' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_switch' mangled-name='mmc_switch' filepath='drivers/mmc/core/mmc_ops.c' line='632' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_switch'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='632' column='1'/>
+        <parameter type-id='f9b06939' name='set' filepath='drivers/mmc/core/mmc_ops.c' line='632' column='1'/>
+        <parameter type-id='f9b06939' name='index' filepath='drivers/mmc/core/mmc_ops.c' line='632' column='1'/>
+        <parameter type-id='f9b06939' name='value' filepath='drivers/mmc/core/mmc_ops.c' line='632' column='1'/>
+        <parameter type-id='f0981eeb' name='timeout_ms' filepath='drivers/mmc/core/mmc_ops.c' line='633' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_unregister_driver' mangled-name='mmc_unregister_driver' filepath='drivers/mmc/core/bus.c' line='265' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_unregister_driver'>
+        <parameter type-id='a46f3b5b' name='drv' filepath='drivers/mmc/core/bus.c' line='265' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mmc_wait_for_cmd' mangled-name='mmc_wait_for_cmd' filepath='drivers/mmc/core/core.c' line='622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_wait_for_cmd'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='622' column='1'/>
+        <parameter type-id='6df3750c' name='cmd' filepath='drivers/mmc/core/core.c' line='622' column='1'/>
+        <parameter type-id='95e97e5e' name='retries' filepath='drivers/mmc/core/core.c' line='622' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mmc_wait_for_req' mangled-name='mmc_wait_for_req' filepath='drivers/mmc/core/core.c' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_wait_for_req'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/core.c' line='603' column='1'/>
+        <parameter type-id='47f117d4' name='mrq' filepath='drivers/mmc/core/core.c' line='603' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mod_delayed_work_on' mangled-name='mod_delayed_work_on' filepath='kernel/workqueue.c' line='1732' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mod_delayed_work_on'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/workqueue.c' line='1732' column='1'/>
+        <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='1732' column='1'/>
+        <parameter type-id='1a7ee447' name='dwork' filepath='kernel/workqueue.c' line='1733' column='1'/>
+        <parameter type-id='7359adad' name='delay' filepath='kernel/workqueue.c' line='1733' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='mod_timer' mangled-name='mod_timer' filepath='kernel/time/timer.c' line='1112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mod_timer'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='1112' column='1'/>
+        <parameter type-id='7359adad' name='expires' filepath='kernel/time/timer.c' line='1112' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='module_layout' mangled-name='module_layout' filepath='kernel/module.c' line='4824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='module_layout'>
+        <parameter type-id='2730d015' name='mod' filepath='kernel/module.c' line='4824' column='1'/>
+        <parameter type-id='3a498c74' name='ver' filepath='kernel/module.c' line='4825' column='1'/>
+        <parameter type-id='a7c6e908' name='kp' filepath='kernel/module.c' line='4826' column='1'/>
+        <parameter type-id='eefd7061' name='ks' filepath='kernel/module.c' line='4827' column='1'/>
+        <parameter type-id='e525e121' name='tp' filepath='kernel/module.c' line='4828' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='module_put' mangled-name='module_put' filepath='include/linux/module.h' line='646' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='module_put'>
+        <parameter type-id='2730d015'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='msleep' mangled-name='msleep' filepath='include/linux/delay.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='msleep'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='msleep_interruptible' mangled-name='msleep_interruptible' filepath='kernel/time/timer.c' line='2044' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='msleep_interruptible'>
+        <parameter type-id='f0981eeb' name='msecs' filepath='kernel/time/timer.c' line='2044' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='mutex_is_locked' mangled-name='mutex_is_locked' filepath='include/linux/mutex.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_is_locked'>
+        <parameter type-id='e0ea832a'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='mutex_lock' mangled-name='mutex_lock' filepath='include/linux/mutex.h' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_lock'>
+        <parameter type-id='e0ea832a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='mutex_lock_interruptible' mangled-name='mutex_lock_interruptible' filepath='include/linux/mutex.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_lock_interruptible'>
+        <parameter type-id='e0ea832a'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mutex_trylock' mangled-name='mutex_trylock' filepath='include/linux/mutex.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_trylock'>
+        <parameter type-id='e0ea832a'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='mutex_trylock_recursive' mangled-name='mutex_trylock_recursive' filepath='kernel/locking/mutex.c' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_trylock_recursive'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='92' column='1'/>
+        <return type-id='9a6ea243'/>
+      </function-decl>
+      <function-decl name='mutex_unlock' mangled-name='mutex_unlock' filepath='include/linux/mutex.h' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_unlock'>
+        <parameter type-id='e0ea832a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='napi_complete_done' mangled-name='napi_complete_done' filepath='include/linux/netdevice.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_complete_done'>
+        <parameter type-id='c50361c5'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='napi_consume_skb' mangled-name='napi_consume_skb' filepath='net/core/skbuff.c' line='909' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_consume_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='909' column='1'/>
+        <parameter type-id='95e97e5e' name='budget' filepath='net/core/skbuff.c' line='909' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='napi_disable' mangled-name='napi_disable' filepath='include/linux/netdevice.h' line='507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_disable'>
+        <parameter type-id='c50361c5'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='napi_gro_flush' mangled-name='napi_gro_flush' filepath='net/core/dev.c' line='5847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_flush'>
+        <parameter type-id='c50361c5' name='napi' filepath='net/core/dev.c' line='5847' column='1'/>
+        <parameter type-id='b50a4934' name='flush_old' filepath='net/core/dev.c' line='5847' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='napi_gro_receive' mangled-name='napi_gro_receive' filepath='include/linux/netdevice.h' line='3915' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_receive'>
+        <parameter type-id='c50361c5'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='dc1b1685'/>
+      </function-decl>
+      <function-decl name='napi_schedule_prep' mangled-name='napi_schedule_prep' filepath='include/linux/netdevice.h' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_schedule_prep'>
+        <parameter type-id='c50361c5'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <var-decl name='net_namespace_list' type-id='72f469ec' mangled-name='net_namespace_list' visibility='default' filepath='net/core/net_namespace.c' line='36' column='1' elf-symbol-id='net_namespace_list'/>
+      <function-decl name='net_ratelimit' mangled-name='net_ratelimit' filepath='net/core/utils.c' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='net_ratelimit'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netdev_change_features' mangled-name='netdev_change_features' filepath='net/core/dev.c' line='9859' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_change_features'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9859' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_err' mangled-name='netdev_err' filepath='include/linux/netdevice.h' line='5128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_err'>
+        <parameter type-id='2ce52478'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_increment_features' mangled-name='netdev_increment_features' filepath='net/core/dev.c' line='11010' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_increment_features'>
+        <parameter type-id='f9f4b16f' name='all' filepath='net/core/dev.c' line='11010' column='1'/>
+        <parameter type-id='f9f4b16f' name='one' filepath='net/core/dev.c' line='11011' column='1'/>
+        <parameter type-id='f9f4b16f' name='mask' filepath='net/core/dev.c' line='11011' column='1'/>
+        <return type-id='f9f4b16f'/>
+      </function-decl>
+      <function-decl name='netdev_info' mangled-name='netdev_info' filepath='include/linux/netdevice.h' line='5134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_info'>
+        <parameter type-id='2ce52478'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_lower_state_changed' mangled-name='netdev_lower_state_changed' filepath='net/core/dev.c' line='8238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_lower_state_changed'>
+        <parameter type-id='68a2d05b' name='lower_dev' filepath='net/core/dev.c' line='8238' column='1'/>
+        <parameter type-id='eaa32e2f' name='lower_state_info' filepath='net/core/dev.c' line='8239' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_master_upper_dev_link' mangled-name='netdev_master_upper_dev_link' filepath='net/core/dev.c' line='7933' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_master_upper_dev_link'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7933' column='1'/>
+        <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7934' column='1'/>
+        <parameter type-id='eaa32e2f' name='upper_priv' filepath='net/core/dev.c' line='7935' column='1'/>
+        <parameter type-id='eaa32e2f' name='upper_info' filepath='net/core/dev.c' line='7935' column='1'/>
+        <parameter type-id='5799dc94' name='extack' filepath='net/core/dev.c' line='7936' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netdev_notify_peers' mangled-name='netdev_notify_peers' filepath='net/core/dev.c' line='1501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_notify_peers'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1501' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_pick_tx' mangled-name='netdev_pick_tx' filepath='net/core/dev.c' line='4013' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_pick_tx'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='4013' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='4013' column='1'/>
+        <parameter type-id='68a2d05b' name='sb_dev' filepath='net/core/dev.c' line='4014' column='1'/>
+        <return type-id='1dc6a898'/>
+      </function-decl>
+      <function-decl name='netdev_rx_handler_register' mangled-name='netdev_rx_handler_register' filepath='net/core/dev.c' line='5074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_rx_handler_register'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='5074' column='1'/>
+        <parameter type-id='da1cb816' name='rx_handler' filepath='net/core/dev.c' line='5075' column='1'/>
+        <parameter type-id='eaa32e2f' name='rx_handler_data' filepath='net/core/dev.c' line='5076' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netdev_rx_handler_unregister' mangled-name='netdev_rx_handler_unregister' filepath='net/core/dev.c' line='5100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_rx_handler_unregister'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='5100' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_state_change' mangled-name='netdev_state_change' filepath='include/linux/netdevice.h' line='4606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_state_change'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_update_features' mangled-name='netdev_update_features' filepath='include/linux/netdevice.h' line='4895' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_update_features'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_upper_dev_link' mangled-name='netdev_upper_dev_link' filepath='net/core/dev.c' line='7905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_upper_dev_link'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7905' column='1'/>
+        <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7906' column='1'/>
+        <parameter type-id='5799dc94' name='extack' filepath='net/core/dev.c' line='7907' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netdev_upper_dev_unlink' mangled-name='netdev_upper_dev_unlink' filepath='net/core/dev.c' line='7988' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_upper_dev_unlink'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='7988' column='1'/>
+        <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7989' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netdev_warn' mangled-name='netdev_warn' filepath='include/linux/netdevice.h' line='5130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_warn'>
+        <parameter type-id='2ce52478'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_carrier_off' mangled-name='netif_carrier_off' filepath='include/linux/netdevice.h' line='4074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_carrier_off'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_carrier_on' mangled-name='netif_carrier_on' filepath='include/linux/netdevice.h' line='4072' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_carrier_on'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_device_attach' mangled-name='netif_device_attach' filepath='include/linux/netdevice.h' line='4183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_device_attach'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_device_detach' mangled-name='netif_device_detach' filepath='include/linux/netdevice.h' line='4181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_device_detach'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_napi_add' mangled-name='netif_napi_add' filepath='include/linux/netdevice.h' line='2427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_napi_add'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='c50361c5'/>
+        <parameter type-id='f07d90b4'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_receive_skb' mangled-name='netif_receive_skb' filepath='include/linux/netdevice.h' line='3912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_receive_skb'>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netif_receive_skb_list' mangled-name='netif_receive_skb_list' filepath='net/core/dev.c' line='5658' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_receive_skb_list'>
+        <parameter type-id='e84b031a' name='head' filepath='net/core/dev.c' line='5658' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_rx' mangled-name='netif_rx' filepath='include/linux/netdevice.h' line='3909' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx'>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netif_rx_ni' mangled-name='netif_rx_ni' filepath='include/linux/netdevice.h' line='3910' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx_ni'>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netif_schedule_queue' mangled-name='netif_schedule_queue' filepath='include/linux/netdevice.h' line='3344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_schedule_queue'>
+        <parameter type-id='35b28c4f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_set_real_num_rx_queues' mangled-name='netif_set_real_num_rx_queues' filepath='include/linux/netdevice.h' line='3829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_set_real_num_rx_queues'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netif_set_real_num_tx_queues' mangled-name='netif_set_real_num_tx_queues' filepath='include/linux/netdevice.h' line='3826' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_set_real_num_tx_queues'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netif_stacked_transfer_operstate' mangled-name='netif_stacked_transfer_operstate' filepath='net/core/dev.c' line='9875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_stacked_transfer_operstate'>
+        <parameter type-id='2ce52478' name='rootdev' filepath='net/core/dev.c' line='9875' column='1'/>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9876' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_tx_stop_all_queues' mangled-name='netif_tx_stop_all_queues' filepath='include/linux/netdevice.h' line='3421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_tx_stop_all_queues'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netif_tx_wake_queue' mangled-name='netif_tx_wake_queue' filepath='include/linux/netdevice.h' line='3380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_tx_wake_queue'>
+        <parameter type-id='35b28c4f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netlink_broadcast' mangled-name='netlink_broadcast' filepath='net/netlink/af_netlink.c' line='1540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_broadcast'>
+        <parameter type-id='f772df6d' name='ssk' filepath='net/netlink/af_netlink.c' line='1540' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/netlink/af_netlink.c' line='1540' column='1'/>
+        <parameter type-id='19c2251e' name='portid' filepath='net/netlink/af_netlink.c' line='1540' column='1'/>
+        <parameter type-id='19c2251e' name='group' filepath='net/netlink/af_netlink.c' line='1541' column='1'/>
+        <parameter type-id='3eb7c31c' name='allocation' filepath='net/netlink/af_netlink.c' line='1541' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netlink_has_listeners' mangled-name='netlink_has_listeners' filepath='include/linux/netlink.h' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_has_listeners'>
+        <parameter type-id='f772df6d'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netlink_kernel_release' mangled-name='netlink_kernel_release' filepath='include/linux/netlink.h' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_kernel_release'>
+        <parameter type-id='f772df6d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='netlink_register_notifier' mangled-name='netlink_register_notifier' filepath='net/netlink/af_netlink.c' line='2747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_register_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/netlink/af_netlink.c' line='2747' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netlink_unicast' mangled-name='netlink_unicast' filepath='include/linux/netlink.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_unicast'>
+        <parameter type-id='f772df6d'/>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='3f1a6b60'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='netlink_unregister_notifier' mangled-name='netlink_unregister_notifier' filepath='net/netlink/af_netlink.c' line='2753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_unregister_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/netlink/af_netlink.c' line='2753' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='new_inode' mangled-name='new_inode' filepath='include/linux/fs.h' line='3000' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='new_inode'>
+        <parameter type-id='42c8f564'/>
+        <return type-id='7e666abe'/>
+      </function-decl>
+      <function-decl name='nf_conntrack_destroy' mangled-name='nf_conntrack_destroy' filepath='include/linux/netfilter/nf_conntrack_common.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nf_conntrack_destroy'>
+        <parameter type-id='96b07343'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='nla_append' mangled-name='nla_append' filepath='lib/nlattr.c' line='1101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_append'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='lib/nlattr.c' line='1101' column='1'/>
+        <parameter type-id='95e97e5e' name='attrlen' filepath='lib/nlattr.c' line='1101' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/nlattr.c' line='1101' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='nla_memcpy' mangled-name='nla_memcpy' filepath='lib/nlattr.c' line='777' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_memcpy'>
+        <parameter type-id='eaa32e2f' name='dest' filepath='lib/nlattr.c' line='777' column='1'/>
+        <parameter type-id='0f2a7ce5' name='src' filepath='lib/nlattr.c' line='777' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='lib/nlattr.c' line='777' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='nla_put' mangled-name='nla_put' filepath='include/net/netlink.h' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='nla_put_64bit' mangled-name='nla_put_64bit' filepath='lib/nlattr.c' line='1056' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put_64bit'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='lib/nlattr.c' line='1056' column='1'/>
+        <parameter type-id='95e97e5e' name='attrtype' filepath='lib/nlattr.c' line='1056' column='1'/>
+        <parameter type-id='95e97e5e' name='attrlen' filepath='lib/nlattr.c' line='1056' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/nlattr.c' line='1057' column='1'/>
+        <parameter type-id='95e97e5e' name='padattr' filepath='lib/nlattr.c' line='1057' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='nla_put_nohdr' mangled-name='nla_put_nohdr' filepath='lib/nlattr.c' line='1082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put_nohdr'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='lib/nlattr.c' line='1082' column='1'/>
+        <parameter type-id='95e97e5e' name='attrlen' filepath='lib/nlattr.c' line='1082' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/nlattr.c' line='1082' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='nla_reserve' mangled-name='nla_reserve' filepath='include/net/netlink.h' line='518' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_reserve'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='6fcaf91e'/>
+      </function-decl>
+      <function-decl name='nla_strlcpy' mangled-name='nla_strlcpy' filepath='include/net/netlink.h' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_strlcpy'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='0f2a7ce5'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='no_llseek' mangled-name='no_llseek' filepath='fs/read_write.c' line='230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='no_llseek'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/read_write.c' line='230' column='1'/>
+        <parameter type-id='69bf7bee' name='offset' filepath='fs/read_write.c' line='230' column='1'/>
+        <parameter type-id='95e97e5e' name='whence' filepath='fs/read_write.c' line='230' column='1'/>
+        <return type-id='69bf7bee'/>
+      </function-decl>
+      <function-decl name='no_seek_end_llseek' mangled-name='no_seek_end_llseek' filepath='fs/read_write.c' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='no_seek_end_llseek'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/read_write.c' line='181' column='1'/>
+        <parameter type-id='69bf7bee' name='offset' filepath='fs/read_write.c' line='181' column='1'/>
+        <parameter type-id='95e97e5e' name='whence' filepath='fs/read_write.c' line='181' column='1'/>
+        <return type-id='69bf7bee'/>
+      </function-decl>
+      <function-decl name='nonseekable_open' mangled-name='nonseekable_open' filepath='fs/open.c' line='1401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nonseekable_open'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/open.c' line='1401' column='1'/>
+        <parameter type-id='77e79a4b' name='filp' filepath='fs/open.c' line='1401' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='noop_llseek' mangled-name='noop_llseek' filepath='fs/read_write.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='noop_llseek'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/read_write.c' line='224' column='1'/>
+        <parameter type-id='69bf7bee' name='offset' filepath='fs/read_write.c' line='224' column='1'/>
+        <parameter type-id='95e97e5e' name='whence' filepath='fs/read_write.c' line='224' column='1'/>
+        <return type-id='69bf7bee'/>
+      </function-decl>
+      <var-decl name='nr_cpu_ids' type-id='f0981eeb' mangled-name='nr_cpu_ids' visibility='default' filepath='kernel/smp.c' line='796' column='1' elf-symbol-id='nr_cpu_ids'/>
+      <var-decl name='nr_irqs' type-id='95e97e5e' mangled-name='nr_irqs' visibility='default' filepath='kernel/irq/irqdesc.c' line='130' column='1' elf-symbol-id='nr_irqs'/>
+      <function-decl name='ns_capable' mangled-name='ns_capable' filepath='kernel/capability.c' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ns_capable'>
+        <parameter type-id='c0ced320' name='ns' filepath='kernel/capability.c' line='394' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='kernel/capability.c' line='394' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='ns_to_timespec64' mangled-name='ns_to_timespec64' filepath='include/linux/time64.h' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ns_to_timespec64'>
+        <parameter type-id='d238557f'/>
+        <return type-id='40a816ad'/>
+      </function-decl>
+      <function-decl name='nsec_to_clock_t' mangled-name='nsec_to_clock_t' filepath='kernel/time/time.c' line='674' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nsec_to_clock_t'>
+        <parameter type-id='91ce1af9' name='x' filepath='kernel/time/time.c' line='674' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='nsecs_to_jiffies' mangled-name='nsecs_to_jiffies' filepath='kernel/time/time.c' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nsecs_to_jiffies'>
+        <parameter type-id='91ce1af9' name='n' filepath='kernel/time/time.c' line='755' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='nvdimm_bus_register' mangled-name='nvdimm_bus_register' filepath='drivers/nvdimm/bus.c' line='342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvdimm_bus_register'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/nvdimm/bus.c' line='342' column='1'/>
+        <parameter type-id='0e23c133' name='nd_desc' filepath='drivers/nvdimm/bus.c' line='343' column='1'/>
+        <return type-id='c7ee6915'/>
+      </function-decl>
+      <function-decl name='nvdimm_bus_unregister' mangled-name='nvdimm_bus_unregister' filepath='drivers/nvdimm/bus.c' line='381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvdimm_bus_unregister'>
+        <parameter type-id='c7ee6915' name='nvdimm_bus' filepath='drivers/nvdimm/bus.c' line='381' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='nvdimm_pmem_region_create' mangled-name='nvdimm_pmem_region_create' filepath='drivers/nvdimm/region_devs.c' line='1150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvdimm_pmem_region_create'>
+        <parameter type-id='c7ee6915' name='nvdimm_bus' filepath='drivers/nvdimm/region_devs.c' line='1150' column='1'/>
+        <parameter type-id='22ab35e2' name='ndr_desc' filepath='drivers/nvdimm/region_devs.c' line='1151' column='1'/>
+        <return type-id='14dc741a'/>
+      </function-decl>
+      <function-decl name='nvmem_cell_get' mangled-name='nvmem_cell_get' filepath='include/linux/nvmem-consumer.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='4a4ce85f'/>
+      </function-decl>
+      <function-decl name='nvmem_cell_put' mangled-name='nvmem_cell_put' filepath='include/linux/nvmem-consumer.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_put'>
+        <parameter type-id='4a4ce85f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='nvmem_cell_read' mangled-name='nvmem_cell_read' filepath='include/linux/nvmem-consumer.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_read'>
+        <parameter type-id='4a4ce85f'/>
+        <parameter type-id='78c01427'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='nvmem_device_put' mangled-name='nvmem_device_put' filepath='drivers/nvmem/core.c' line='957' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_put'>
+        <parameter type-id='8179bc49' name='nvmem' filepath='drivers/nvmem/core.c' line='957' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='nvmem_device_read' mangled-name='nvmem_device_read' filepath='include/linux/nvmem-consumer.h' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_read'>
+        <parameter type-id='8179bc49'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='nvmem_device_write' mangled-name='nvmem_device_write' filepath='include/linux/nvmem-consumer.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_write'>
+        <parameter type-id='8179bc49'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_address_to_resource' mangled-name='of_address_to_resource' filepath='include/linux/of_address.h' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_address_to_resource'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='c9d64c0d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_alias_get_id' mangled-name='of_alias_get_id' filepath='include/linux/of.h' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_alias_get_id'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_clk_add_hw_provider' mangled-name='of_clk_add_hw_provider' filepath='drivers/clk/clk.c' line='4647' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_add_hw_provider'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk.c' line='4647' column='1'/>
+        <parameter type-id='a5186342' name='get' filepath='drivers/clk/clk.c' line='4648' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4650' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_clk_add_provider' mangled-name='of_clk_add_provider' filepath='drivers/clk/clk.c' line='4605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_add_provider'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk.c' line='4605' column='1'/>
+        <parameter type-id='f1c652ac' name='clk_src_get' filepath='drivers/clk/clk.c' line='4606' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4608' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_clk_del_provider' mangled-name='of_clk_del_provider' filepath='drivers/clk/clk.c' line='4749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_del_provider'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk.c' line='4749' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='of_clk_get' mangled-name='of_clk_get' filepath='include/linux/clk.h' line='987' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='of_clk_get_by_name' mangled-name='of_clk_get_by_name' filepath='include/linux/clk.h' line='988' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get_by_name'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='of_clk_get_parent_name' mangled-name='of_clk_get_parent_name' filepath='drivers/clk/clk.c' line='4991' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get_parent_name'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/clk/clk.c' line='4991' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/clk/clk.c' line='4991' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='of_clk_hw_onecell_get' mangled-name='of_clk_hw_onecell_get' filepath='drivers/clk/clk.c' line='4583' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_hw_onecell_get'>
+        <parameter type-id='51a94113' name='clkspec' filepath='drivers/clk/clk.c' line='4583' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4583' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='of_clk_hw_simple_get' mangled-name='of_clk_hw_simple_get' filepath='drivers/clk/clk.c' line='4562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_hw_simple_get'>
+        <parameter type-id='51a94113' name='clkspec' filepath='drivers/clk/clk.c' line='4562' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4562' column='1'/>
+        <return type-id='3aaeef89'/>
+      </function-decl>
+      <function-decl name='of_clk_set_defaults' mangled-name='of_clk_set_defaults' filepath='include/linux/clk/clk-conf.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_set_defaults'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_clk_src_onecell_get' mangled-name='of_clk_src_onecell_get' filepath='drivers/clk/clk.c' line='4568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_src_onecell_get'>
+        <parameter type-id='51a94113' name='clkspec' filepath='drivers/clk/clk.c' line='4568' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4568' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='of_clk_src_simple_get' mangled-name='of_clk_src_simple_get' filepath='drivers/clk/clk.c' line='4555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_src_simple_get'>
+        <parameter type-id='51a94113' name='clkspec' filepath='drivers/clk/clk.c' line='4555' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4556' column='1'/>
+        <return type-id='7d0bc0eb'/>
+      </function-decl>
+      <function-decl name='of_count_phandle_with_args' mangled-name='of_count_phandle_with_args' filepath='include/linux/of.h' line='378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_count_phandle_with_args'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_cpu_node_to_id' mangled-name='of_cpu_node_to_id' filepath='include/linux/of.h' line='555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_cpu_node_to_id'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_devfreq_cooling_register_power' mangled-name='of_devfreq_cooling_register_power' filepath='drivers/thermal/devfreq_cooling.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_devfreq_cooling_register_power'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/thermal/devfreq_cooling.c' line='460' column='1'/>
+        <parameter type-id='f66fa7f4' name='df' filepath='drivers/thermal/devfreq_cooling.c' line='460' column='1'/>
+        <parameter type-id='0b660ebe' name='dfc_power' filepath='drivers/thermal/devfreq_cooling.c' line='461' column='1'/>
+        <return type-id='2feec21f'/>
+      </function-decl>
+      <function-decl name='of_device_get_match_data' mangled-name='of_device_get_match_data' filepath='include/linux/of_device.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_get_match_data'>
+        <parameter type-id='8df61054'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='of_device_is_available' mangled-name='of_device_is_available' filepath='include/linux/of.h' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_is_available'>
+        <parameter type-id='0afa6ea3'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='of_device_is_compatible' mangled-name='of_device_is_compatible' filepath='drivers/of/base.c' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_is_compatible'>
+        <parameter type-id='0afa6ea3' name='device' filepath='drivers/of/base.c' line='525' column='1'/>
+        <parameter type-id='80f4b756' name='compat' filepath='drivers/of/base.c' line='526' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_device_modalias' mangled-name='of_device_modalias' filepath='include/linux/of_device.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_modalias'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='79a0948f'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='of_device_request_module' mangled-name='of_device_request_module' filepath='drivers/of/device.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_request_module'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/device.c' line='301' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_device_uevent_modalias' mangled-name='of_device_uevent_modalias' filepath='include/linux/of_device.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_uevent_modalias'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='d9d65b21'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_dma_configure_id' mangled-name='of_dma_configure_id' filepath='include/linux/of_device.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_configure_id'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='aded214c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_dma_controller_free' mangled-name='of_dma_controller_free' filepath='drivers/dma/of-dma.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_controller_free'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/dma/of-dma.c' line='143' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='of_dma_controller_register' mangled-name='of_dma_controller_register' filepath='drivers/dma/of-dma.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_controller_register'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/dma/of-dma.c' line='108' column='1'/>
+        <parameter type-id='04d80927' name='of_dma_xlate' filepath='drivers/dma/of-dma.c' line='109' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/dma/of-dma.c' line='111' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_dma_is_coherent' mangled-name='of_dma_is_coherent' filepath='include/linux/of_address.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_is_coherent'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='of_drm_find_bridge' mangled-name='of_drm_find_bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='1209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_drm_find_bridge'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/gpu/drm/drm_bridge.c' line='1209' column='1'/>
+        <return type-id='8582e5ec'/>
+      </function-decl>
+      <function-decl name='of_drm_find_panel' mangled-name='of_drm_find_panel' filepath='drivers/gpu/drm/drm_panel.c' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_drm_find_panel'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/gpu/drm/drm_panel.c' line='243' column='1'/>
+        <return type-id='c5491077'/>
+      </function-decl>
+      <function-decl name='of_find_backlight_by_node' mangled-name='of_find_backlight_by_node' filepath='drivers/video/backlight/backlight.c' line='665' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_backlight_by_node'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/video/backlight/backlight.c' line='665' column='1'/>
+        <return type-id='7a76d041'/>
+      </function-decl>
+      <function-decl name='of_find_compatible_node' mangled-name='of_find_compatible_node' filepath='include/linux/of.h' line='271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_compatible_node'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_device_by_node' mangled-name='of_find_device_by_node' filepath='include/linux/of_platform.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_device_by_node'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='db362995'/>
+      </function-decl>
+      <function-decl name='of_find_i2c_adapter_by_node' mangled-name='of_find_i2c_adapter_by_node' filepath='drivers/i2c/i2c-core-of.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_i2c_adapter_by_node'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/i2c/i2c-core-of.c' line='149' column='1'/>
+        <return type-id='b9af02c3'/>
+      </function-decl>
+      <function-decl name='of_find_i2c_device_by_node' mangled-name='of_find_i2c_device_by_node' filepath='drivers/i2c/i2c-core-of.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_i2c_device_by_node'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/i2c/i2c-core-of.c' line='131' column='1'/>
+        <return type-id='3e31633b'/>
+      </function-decl>
+      <function-decl name='of_find_matching_node_and_match' mangled-name='of_find_matching_node_and_match' filepath='include/linux/of.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_matching_node_and_match'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='e5ce629e'/>
+        <parameter type-id='77e5615c'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_mipi_dsi_host_by_node' mangled-name='of_find_mipi_dsi_host_by_node' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_mipi_dsi_host_by_node'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='262' column='1'/>
+        <return type-id='c149fe34'/>
+      </function-decl>
+      <function-decl name='of_find_node_by_name' mangled-name='of_find_node_by_name' filepath='include/linux/of.h' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_name'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_node_by_phandle' mangled-name='of_find_node_by_phandle' filepath='include/linux/of.h' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_phandle'>
+        <parameter type-id='6e394fba'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_node_by_type' mangled-name='of_find_node_by_type' filepath='include/linux/of.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_type'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_node_opts_by_path' mangled-name='of_find_node_opts_by_path' filepath='include/linux/of.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_opts_by_path'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7d3cd834'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_node_with_property' mangled-name='of_find_node_with_property' filepath='include/linux/of.h' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_with_property'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_find_property' mangled-name='of_find_property' filepath='include/linux/of.h' line='304' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_property'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='ddcd89c6'/>
+      </function-decl>
+      <var-decl name='of_fwnode_ops' type-id='2eb8da02' mangled-name='of_fwnode_ops' visibility='default' filepath='drivers/of/property.c' line='1418' column='1' elf-symbol-id='of_fwnode_ops'/>
+      <function-decl name='of_genpd_add_provider_onecell' mangled-name='of_genpd_add_provider_onecell' filepath='drivers/base/power/domain.c' line='2280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_genpd_add_provider_onecell'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/base/power/domain.c' line='2280' column='1'/>
+        <parameter type-id='29f0ac2f' name='data' filepath='drivers/base/power/domain.c' line='2281' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_genpd_add_provider_simple' mangled-name='of_genpd_add_provider_simple' filepath='drivers/base/power/domain.c' line='2222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_genpd_add_provider_simple'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/base/power/domain.c' line='2222' column='1'/>
+        <parameter type-id='855e3679' name='genpd' filepath='drivers/base/power/domain.c' line='2223' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_genpd_del_provider' mangled-name='of_genpd_del_provider' filepath='drivers/base/power/domain.c' line='2361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_genpd_del_provider'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/base/power/domain.c' line='2361' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='of_get_child_by_name' mangled-name='of_get_child_by_name' filepath='include/linux/of.h' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_child_by_name'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_compatible_child' mangled-name='of_get_compatible_child' filepath='drivers/of/base.c' line='822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_compatible_child'>
+        <parameter type-id='0afa6ea3' name='parent' filepath='drivers/of/base.c' line='822' column='1'/>
+        <parameter type-id='80f4b756' name='compatible' filepath='drivers/of/base.c' line='823' column='1'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_cpu_node' mangled-name='of_get_cpu_node' filepath='include/linux/of.h' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_cpu_node'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='807869d3'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_dma_window' mangled-name='of_get_dma_window' filepath='drivers/iommu/of_iommu.c' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_dma_window'>
+        <parameter type-id='9a537bbe' name='dn' filepath='drivers/iommu/of_iommu.c' line='36' column='1'/>
+        <parameter type-id='80f4b756' name='prefix' filepath='drivers/iommu/of_iommu.c' line='36' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/iommu/of_iommu.c' line='36' column='1'/>
+        <parameter type-id='1d2c2b85' name='busno' filepath='drivers/iommu/of_iommu.c' line='37' column='1'/>
+        <parameter type-id='e835b5d8' name='addr' filepath='drivers/iommu/of_iommu.c' line='37' column='1'/>
+        <parameter type-id='78c01427' name='size' filepath='drivers/iommu/of_iommu.c' line='37' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_get_named_gpio_flags' mangled-name='of_get_named_gpio_flags' filepath='drivers/gpio/gpiolib-of.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_named_gpio_flags'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/gpio/gpiolib-of.c' line='278' column='1'/>
+        <parameter type-id='80f4b756' name='list_name' filepath='drivers/gpio/gpiolib-of.c' line='278' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/gpio/gpiolib-of.c' line='279' column='1'/>
+        <parameter type-id='38fe9344' name='flags' filepath='drivers/gpio/gpiolib-of.c' line='279' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_get_next_available_child' mangled-name='of_get_next_available_child' filepath='include/linux/of.h' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_available_child'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_next_child' mangled-name='of_get_next_child' filepath='include/linux/of.h' line='288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_child'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_next_parent' mangled-name='of_get_next_parent' filepath='include/linux/of.h' line='287' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_parent'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_parent' mangled-name='of_get_parent' filepath='include/linux/of.h' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_parent'>
+        <parameter type-id='0afa6ea3'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_get_property' mangled-name='of_get_property' filepath='include/linux/of.h' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_property'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='of_get_regulator_init_data' mangled-name='of_get_regulator_init_data' filepath='drivers/regulator/of_regulator.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_regulator_init_data'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/of_regulator.c' line='273' column='1'/>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/regulator/of_regulator.c' line='274' column='1'/>
+        <parameter type-id='5629bd41' name='desc' filepath='drivers/regulator/of_regulator.c' line='275' column='1'/>
+        <return type-id='d287fe92'/>
+      </function-decl>
+      <function-decl name='of_graph_get_endpoint_by_regs' mangled-name='of_graph_get_endpoint_by_regs' filepath='drivers/of/property.c' line='689' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_endpoint_by_regs'>
+        <parameter type-id='0afa6ea3' name='parent' filepath='drivers/of/property.c' line='690' column='1'/>
+        <parameter type-id='95e97e5e' name='port_reg' filepath='drivers/of/property.c' line='690' column='1'/>
+        <parameter type-id='95e97e5e' name='reg' filepath='drivers/of/property.c' line='690' column='1'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_graph_get_next_endpoint' mangled-name='of_graph_get_next_endpoint' filepath='include/linux/of_graph.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_next_endpoint'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_graph_get_port_parent' mangled-name='of_graph_get_port_parent' filepath='drivers/of/property.c' line='727' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_port_parent'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/of/property.c' line='727' column='1'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_graph_get_remote_endpoint' mangled-name='of_graph_get_remote_endpoint' filepath='drivers/of/property.c' line='713' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_endpoint'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/property.c' line='713' column='1'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_graph_get_remote_node' mangled-name='of_graph_get_remote_node' filepath='include/linux/of_graph.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_node'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_graph_get_remote_port_parent' mangled-name='of_graph_get_remote_port_parent' filepath='include/linux/of_graph.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_port_parent'>
+        <parameter type-id='0afa6ea3'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_graph_is_present' mangled-name='of_graph_is_present' filepath='include/linux/of_graph.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_is_present'>
+        <parameter type-id='0afa6ea3'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='of_graph_parse_endpoint' mangled-name='of_graph_parse_endpoint' filepath='include/linux/of_graph.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_parse_endpoint'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='a5eb3c12'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_hwspin_lock_get_id' mangled-name='of_hwspin_lock_get_id' filepath='include/linux/hwspinlock.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_hwspin_lock_get_id'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_icc_get' mangled-name='of_icc_get' filepath='include/linux/interconnect.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_icc_get'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='b5fdec5e'/>
+      </function-decl>
+      <function-decl name='of_icc_xlate_onecell' mangled-name='of_icc_xlate_onecell' filepath='drivers/interconnect/core.c' line='331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_icc_xlate_onecell'>
+        <parameter type-id='51a94113' name='spec' filepath='drivers/interconnect/core.c' line='331' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/interconnect/core.c' line='332' column='1'/>
+        <return type-id='18d76f87'/>
+      </function-decl>
+      <function-decl name='of_iomap' mangled-name='of_iomap' filepath='include/linux/of_address.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_iomap'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='of_irq_find_parent' mangled-name='of_irq_find_parent' filepath='include/linux/of_irq.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_find_parent'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_irq_get' mangled-name='of_irq_get' filepath='include/linux/of_irq.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_get'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_irq_get_byname' mangled-name='of_irq_get_byname' filepath='include/linux/of_irq.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_get_byname'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_irq_parse_one' mangled-name='of_irq_parse_one' filepath='include/linux/of_irq.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_parse_one'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='51a94113'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_machine_is_compatible' mangled-name='of_machine_is_compatible' filepath='include/linux/of.h' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_machine_is_compatible'>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_match_device' mangled-name='of_match_device' filepath='include/linux/of_device.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_match_device'>
+        <parameter type-id='e5ce629e'/>
+        <parameter type-id='8df61054'/>
+        <return type-id='e5ce629e'/>
+      </function-decl>
+      <function-decl name='of_match_node' mangled-name='of_match_node' filepath='include/linux/of.h' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_match_node'>
+        <parameter type-id='e5ce629e'/>
+        <parameter type-id='0afa6ea3'/>
+        <return type-id='e5ce629e'/>
+      </function-decl>
+      <function-decl name='of_n_addr_cells' mangled-name='of_n_addr_cells' filepath='include/linux/of.h' line='360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_n_addr_cells'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_n_size_cells' mangled-name='of_n_size_cells' filepath='include/linux/of.h' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_n_size_cells'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_node_name_eq' mangled-name='of_node_name_eq' filepath='include/linux/of.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_node_name_eq'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='of_nvmem_device_get' mangled-name='of_nvmem_device_get' filepath='drivers/nvmem/core.c' line='857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_nvmem_device_get'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/nvmem/core.c' line='857' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/nvmem/core.c' line='857' column='1'/>
+        <return type-id='8179bc49'/>
+      </function-decl>
+      <function-decl name='of_parse_phandle' mangled-name='of_parse_phandle' filepath='include/linux/of.h' line='366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='9a537bbe'/>
+      </function-decl>
+      <function-decl name='of_parse_phandle_with_args' mangled-name='of_parse_phandle_with_args' filepath='include/linux/of.h' line='369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_args'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='51a94113'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_parse_phandle_with_fixed_args' mangled-name='of_parse_phandle_with_fixed_args' filepath='include/linux/of.h' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_fixed_args'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='51a94113'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_phandle_iterator_init' mangled-name='of_phandle_iterator_init' filepath='include/linux/of.h' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phandle_iterator_init'>
+        <parameter type-id='58cfaa0e'/>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_phandle_iterator_next' mangled-name='of_phandle_iterator_next' filepath='include/linux/of.h' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phandle_iterator_next'>
+        <parameter type-id='58cfaa0e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_phy_simple_xlate' mangled-name='of_phy_simple_xlate' filepath='drivers/phy/phy-core.c' line='633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phy_simple_xlate'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/phy/phy-core.c' line='633' column='1'/>
+        <parameter type-id='51a94113' name='args' filepath='drivers/phy/phy-core.c' line='634' column='1'/>
+        <return type-id='503ff1ba'/>
+      </function-decl>
+      <function-decl name='of_platform_depopulate' mangled-name='of_platform_depopulate' filepath='include/linux/of_platform.h' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_platform_depopulate'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='of_platform_populate' mangled-name='of_platform_populate' filepath='include/linux/of_platform.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_platform_populate'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='e5ce629e'/>
+        <parameter type-id='fcc1e09e'/>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_prop_next_string' mangled-name='of_prop_next_string' filepath='include/linux/of.h' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_prop_next_string'>
+        <parameter type-id='ddcd89c6'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='of_prop_next_u32' mangled-name='of_prop_next_u32' filepath='include/linux/of.h' line='542' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_prop_next_u32'>
+        <parameter type-id='ddcd89c6'/>
+        <parameter type-id='90144368'/>
+        <parameter type-id='f9409001'/>
+        <return type-id='90144368'/>
+      </function-decl>
+      <function-decl name='of_property_count_elems_of_size' mangled-name='of_property_count_elems_of_size' filepath='include/linux/of.h' line='307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_count_elems_of_size'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_match_string' mangled-name='of_property_match_string' filepath='include/linux/of.h' line='337' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_match_string'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_string' mangled-name='of_property_read_string' filepath='include/linux/of.h' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_string'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7d3cd834'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_string_helper' mangled-name='of_property_read_string_helper' filepath='include/linux/of.h' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_string_helper'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7d3cd834'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_u32_index' mangled-name='of_property_read_u32_index' filepath='include/linux/of.h' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u32_index'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='19c2251e'/>
+        <parameter type-id='f9409001'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_u64' mangled-name='of_property_read_u64' filepath='include/linux/of.h' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u64'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='3df9fd28'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_u64_index' mangled-name='of_property_read_u64_index' filepath='drivers/of/property.c' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u64_index'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='170' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='171' column='1'/>
+        <parameter type-id='19c2251e' name='index' filepath='drivers/of/property.c' line='172' column='1'/>
+        <parameter type-id='3df9fd28' name='out_value' filepath='drivers/of/property.c' line='172' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_variable_u16_array' mangled-name='of_property_read_variable_u16_array' filepath='drivers/of/property.c' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u16_array'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='256' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='257' column='1'/>
+        <parameter type-id='26d4d46f' name='out_values' filepath='drivers/of/property.c' line='257' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_min' filepath='drivers/of/property.c' line='258' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_max' filepath='drivers/of/property.c' line='258' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_variable_u32_array' mangled-name='of_property_read_variable_u32_array' filepath='include/linux/of.h' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u32_array'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f9409001'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_variable_u64_array' mangled-name='of_property_read_variable_u64_array' filepath='drivers/of/property.c' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u64_array'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='375' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='376' column='1'/>
+        <parameter type-id='3df9fd28' name='out_values' filepath='drivers/of/property.c' line='376' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_min' filepath='drivers/of/property.c' line='377' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_max' filepath='drivers/of/property.c' line='377' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_property_read_variable_u8_array' mangled-name='of_property_read_variable_u8_array' filepath='include/linux/of.h' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u8_array'>
+        <parameter type-id='0afa6ea3'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='8bff8096'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_pwm_xlate_with_flags' mangled-name='of_pwm_xlate_with_flags' filepath='drivers/pwm/core.c' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_pwm_xlate_with_flags'>
+        <parameter type-id='00cf0c80' name='pc' filepath='drivers/pwm/core.c' line='135' column='1'/>
+        <parameter type-id='af02a266' name='args' filepath='drivers/pwm/core.c' line='135' column='1'/>
+        <return type-id='f06adae0'/>
+      </function-decl>
+      <function-decl name='of_reserved_mem_device_init_by_idx' mangled-name='of_reserved_mem_device_init_by_idx' filepath='include/linux/of_reserved_mem.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_device_init_by_idx'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_reserved_mem_device_release' mangled-name='of_reserved_mem_device_release' filepath='drivers/of/of_reserved_mem.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_device_release'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/of_reserved_mem.c' line='395' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='of_reserved_mem_lookup' mangled-name='of_reserved_mem_lookup' filepath='include/linux/of_reserved_mem.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_lookup'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='f7f718cb'/>
+      </function-decl>
+      <var-decl name='of_root' type-id='9a537bbe' mangled-name='of_root' visibility='default' filepath='drivers/of/base.c' line='36' column='1' elf-symbol-id='of_root'/>
+      <function-decl name='of_thermal_get_ntrips' mangled-name='of_thermal_get_ntrips' filepath='drivers/thermal/thermal_of.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_thermal_get_ntrips'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_of.c' line='119' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='of_thermal_get_trip_points' mangled-name='of_thermal_get_trip_points' filepath='drivers/thermal/thermal_of.c' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_thermal_get_trip_points'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_of.c' line='162' column='1'/>
+        <return type-id='3837a2c7'/>
+      </function-decl>
+      <function-decl name='of_thermal_is_trip_valid' mangled-name='of_thermal_is_trip_valid' filepath='drivers/thermal/thermal_of.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_thermal_is_trip_valid'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_of.c' line='140' column='1'/>
+        <parameter type-id='95e97e5e' name='trip' filepath='drivers/thermal/thermal_of.c' line='140' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='of_translate_address' mangled-name='of_translate_address' filepath='include/linux/of_address.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_translate_address'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='90144368'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='of_usb_host_tpl_support' mangled-name='of_usb_host_tpl_support' filepath='drivers/usb/common/common.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_usb_host_tpl_support'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/usb/common/common.c' line='308' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <var-decl name='oops_in_progress' type-id='95e97e5e' mangled-name='oops_in_progress' visibility='default' filepath='kernel/printk/printk.c' line='81' column='1' elf-symbol-id='oops_in_progress'/>
+      <function-decl name='open_candev' mangled-name='open_candev' filepath='drivers/net/can/dev/dev.c' line='848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='open_candev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='848' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='out_of_line_wait_on_bit_timeout' mangled-name='out_of_line_wait_on_bit_timeout' filepath='kernel/sched/wait_bit.c' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='out_of_line_wait_on_bit_timeout'>
+        <parameter type-id='eaa32e2f' name='word' filepath='kernel/sched/wait_bit.c' line='69' column='1'/>
+        <parameter type-id='95e97e5e' name='bit' filepath='kernel/sched/wait_bit.c' line='69' column='1'/>
+        <parameter type-id='50c74428' name='action' filepath='kernel/sched/wait_bit.c' line='69' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait_bit.c' line='70' column='1'/>
+        <parameter type-id='7359adad' name='timeout' filepath='kernel/sched/wait_bit.c' line='70' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='page_endio' mangled-name='page_endio' filepath='mm/filemap.c' line='1516' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_endio'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/filemap.c' line='1516' column='1'/>
+        <parameter type-id='b50a4934' name='is_write' filepath='mm/filemap.c' line='1516' column='1'/>
+        <parameter type-id='95e97e5e' name='err' filepath='mm/filemap.c' line='1516' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='page_frag_alloc' mangled-name='page_frag_alloc' filepath='mm/page_alloc.c' line='5277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_alloc'>
+        <parameter type-id='34e4f518' name='nc' filepath='mm/page_alloc.c' line='5277' column='1'/>
+        <parameter type-id='f0981eeb' name='fragsz' filepath='mm/page_alloc.c' line='5278' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5278' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='page_frag_free' mangled-name='page_frag_free' filepath='mm/page_alloc.c' line='5339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_free'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/page_alloc.c' line='5339' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='page_mapping' mangled-name='page_mapping' filepath='include/linux/mm.h' line='1657' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_mapping'>
+        <parameter type-id='02f11ed4'/>
+        <return type-id='f57039f0'/>
+      </function-decl>
+      <function-decl name='panic' mangled-name='panic' filepath='include/linux/kernel.h' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='panic'>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='panic_notifier_list' type-id='dbd58f6e' mangled-name='panic_notifier_list' visibility='default' filepath='kernel/panic.c' line='69' column='1' elf-symbol-id='panic_notifier_list'/>
+      <var-decl name='param_array_ops' type-id='95d0d4e8' mangled-name='param_array_ops' visibility='default' filepath='kernel/params.c' line='485' column='1' elf-symbol-id='param_array_ops'/>
+      <function-decl name='param_get_int' mangled-name='param_get_int' filepath='kernel/params.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='param_get_int'>
+        <parameter type-id='26a90f95' name='buffer' filepath='kernel/params.c' line='239' column='1'/>
+        <parameter type-id='edcbd723' name='kp' filepath='kernel/params.c' line='239' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='param_get_string' mangled-name='param_get_string' filepath='kernel/params.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='param_get_string'>
+        <parameter type-id='26a90f95' name='buffer' filepath='kernel/params.c' line='506' column='1'/>
+        <parameter type-id='edcbd723' name='kp' filepath='kernel/params.c' line='506' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='param_get_uint' mangled-name='param_get_uint' filepath='kernel/params.c' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='param_get_uint'>
+        <parameter type-id='26a90f95' name='buffer' filepath='kernel/params.c' line='240' column='1'/>
+        <parameter type-id='edcbd723' name='kp' filepath='kernel/params.c' line='240' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='param_ops_bint' type-id='95d0d4e8' mangled-name='param_ops_bint' visibility='default' filepath='kernel/params.c' line='387' column='1' elf-symbol-id='param_ops_bint'/>
+      <var-decl name='param_ops_bool' type-id='95d0d4e8' mangled-name='param_ops_bool' visibility='default' filepath='kernel/params.c' line='306' column='1' elf-symbol-id='param_ops_bool'/>
+      <var-decl name='param_ops_byte' type-id='95d0d4e8' mangled-name='param_ops_byte' visibility='default' filepath='kernel/params.c' line='236' column='1' elf-symbol-id='param_ops_byte'/>
+      <var-decl name='param_ops_charp' type-id='95d0d4e8' mangled-name='param_ops_charp' visibility='default' filepath='kernel/params.c' line='281' column='1' elf-symbol-id='param_ops_charp'/>
+      <var-decl name='param_ops_int' type-id='95d0d4e8' mangled-name='param_ops_int' visibility='default' filepath='kernel/params.c' line='239' column='1' elf-symbol-id='param_ops_int'/>
+      <var-decl name='param_ops_long' type-id='95d0d4e8' mangled-name='param_ops_long' visibility='default' filepath='kernel/params.c' line='241' column='1' elf-symbol-id='param_ops_long'/>
+      <var-decl name='param_ops_string' type-id='95d0d4e8' mangled-name='param_ops_string' visibility='default' filepath='kernel/params.c' line='513' column='1' elf-symbol-id='param_ops_string'/>
+      <var-decl name='param_ops_uint' type-id='95d0d4e8' mangled-name='param_ops_uint' visibility='default' filepath='kernel/params.c' line='240' column='1' elf-symbol-id='param_ops_uint'/>
+      <var-decl name='param_ops_ulong' type-id='95d0d4e8' mangled-name='param_ops_ulong' visibility='default' filepath='kernel/params.c' line='242' column='1' elf-symbol-id='param_ops_ulong'/>
+      <var-decl name='param_ops_ushort' type-id='95d0d4e8' mangled-name='param_ops_ushort' visibility='default' filepath='kernel/params.c' line='238' column='1' elf-symbol-id='param_ops_ushort'/>
+      <function-decl name='param_set_copystring' mangled-name='param_set_copystring' filepath='kernel/params.c' line='492' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='param_set_copystring'>
+        <parameter type-id='80f4b756' name='val' filepath='kernel/params.c' line='492' column='1'/>
+        <parameter type-id='edcbd723' name='kp' filepath='kernel/params.c' line='492' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='param_set_int' mangled-name='param_set_int' filepath='kernel/params.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='param_set_int'>
+        <parameter type-id='80f4b756' name='val' filepath='kernel/params.c' line='239' column='1'/>
+        <parameter type-id='edcbd723' name='kp' filepath='kernel/params.c' line='239' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='param_set_uint' mangled-name='param_set_uint' filepath='kernel/params.c' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='param_set_uint'>
+        <parameter type-id='80f4b756' name='val' filepath='kernel/params.c' line='240' column='1'/>
+        <parameter type-id='edcbd723' name='kp' filepath='kernel/params.c' line='240' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='passthru_features_check' mangled-name='passthru_features_check' filepath='net/core/dev.c' line='3501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='passthru_features_check'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='3501' column='1'/>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='3502' column='1'/>
+        <parameter type-id='f9f4b16f' name='features' filepath='net/core/dev.c' line='3503' column='1'/>
+        <return type-id='f9f4b16f'/>
+      </function-decl>
+      <function-decl name='pause_cpus' mangled-name='pause_cpus' filepath='kernel/cpu.c' line='1193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pause_cpus'>
+        <parameter type-id='74bccedd' name='cpus' filepath='kernel/cpu.c' line='1193' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_alloc_irq_vectors_affinity' mangled-name='pci_alloc_irq_vectors_affinity' filepath='include/linux/pci.h' line='1501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_alloc_irq_vectors_affinity'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8a876638'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_assign_resource' mangled-name='pci_assign_resource' filepath='include/linux/pci.h' line='1251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_assign_resource'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='pci_bus_type' type-id='b31bfc8a' mangled-name='pci_bus_type' visibility='default' filepath='drivers/pci/pci-driver.c' line='1598' column='1' elf-symbol-id='pci_bus_type'/>
+      <function-decl name='pci_clear_master' mangled-name='pci_clear_master' filepath='drivers/pci/pci.c' line='4302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_clear_master'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4302' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_dev_put' mangled-name='pci_dev_put' filepath='include/linux/pci.h' line='1077' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_dev_put'>
+        <parameter type-id='85196e3f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_device_group' mangled-name='pci_device_group' filepath='drivers/iommu/iommu.c' line='1394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_device_group'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1394' column='1'/>
+        <return type-id='0b19fc54'/>
+      </function-decl>
+      <function-decl name='pci_device_is_present' mangled-name='pci_device_is_present' filepath='drivers/pci/pci.c' line='6139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_device_is_present'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='6139' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='pci_disable_device' mangled-name='pci_disable_device' filepath='drivers/pci/pci.c' line='2138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_device'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2138' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_disable_msi' mangled-name='pci_disable_msi' filepath='include/linux/pci.h' line='1485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_msi'>
+        <parameter type-id='85196e3f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_disable_pcie_error_reporting' mangled-name='pci_disable_pcie_error_reporting' filepath='include/linux/aer.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_pcie_error_reporting'>
+        <parameter type-id='85196e3f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_disable_sriov' mangled-name='pci_disable_sriov' filepath='drivers/pci/iov.c' line='943' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_sriov'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/iov.c' line='943' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_enable_device' mangled-name='pci_enable_device' filepath='drivers/pci/pci.c' line='1945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1945' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_enable_device_mem' mangled-name='pci_enable_device_mem' filepath='drivers/pci/pci.c' line='1928' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device_mem'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1928' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_enable_msi' mangled-name='pci_enable_msi' filepath='drivers/pci/msi.c' line='1127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_msi'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='1127' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_enable_pcie_error_reporting' mangled-name='pci_enable_pcie_error_reporting' filepath='drivers/pci/pcie/aer.c' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_pcie_error_reporting'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pcie/aer.c' line='225' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_enable_sriov' mangled-name='pci_enable_sriov' filepath='drivers/pci/iov.c' line='928' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_sriov'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/iov.c' line='928' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_virtfn' filepath='drivers/pci/iov.c' line='928' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_enable_wake' mangled-name='pci_enable_wake' filepath='drivers/pci/pci.c' line='2502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_wake'>
+        <parameter type-id='85196e3f' name='pci_dev' filepath='drivers/pci/pci.c' line='2502' column='1'/>
+        <parameter type-id='49c32219' name='state' filepath='drivers/pci/pci.c' line='2502' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2502' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_find_bus' mangled-name='pci_find_bus' filepath='include/linux/pci.h' line='1040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_bus'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='d1feb554'/>
+      </function-decl>
+      <function-decl name='pci_find_capability' mangled-name='pci_find_capability' filepath='include/linux/pci.h' line='1091' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_capability'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_find_ext_capability' mangled-name='pci_find_ext_capability' filepath='include/linux/pci.h' line='1093' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_ext_capability'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_find_next_capability' mangled-name='pci_find_next_capability' filepath='drivers/pci/pci.c' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_next_capability'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='434' column='1'/>
+        <parameter type-id='f9b06939' name='pos' filepath='drivers/pci/pci.c' line='434' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='434' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_free_irq' mangled-name='pci_free_irq' filepath='drivers/pci/irq.c' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_free_irq'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/irq.c' line='70' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='drivers/pci/irq.c' line='70' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='drivers/pci/irq.c' line='70' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_free_irq_vectors' mangled-name='pci_free_irq_vectors' filepath='include/linux/pci.h' line='1505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_free_irq_vectors'>
+        <parameter type-id='85196e3f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_get_device' mangled-name='pci_get_device' filepath='drivers/pci/search.c' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_get_device'>
+        <parameter type-id='f0981eeb' name='vendor' filepath='drivers/pci/search.c' line='333' column='1'/>
+        <parameter type-id='f0981eeb' name='device' filepath='drivers/pci/search.c' line='333' column='1'/>
+        <parameter type-id='85196e3f' name='from' filepath='drivers/pci/search.c' line='334' column='1'/>
+        <return type-id='85196e3f'/>
+      </function-decl>
+      <function-decl name='pci_get_slot' mangled-name='pci_get_slot' filepath='include/linux/pci.h' line='1106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_get_slot'>
+        <parameter type-id='d1feb554'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='85196e3f'/>
+      </function-decl>
+      <function-decl name='pci_intx' mangled-name='pci_intx' filepath='drivers/pci/pci.c' line='4444' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_intx'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='4444' column='1'/>
+        <parameter type-id='95e97e5e' name='enable' filepath='drivers/pci/pci.c' line='4444' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_iomap' mangled-name='pci_iomap' filepath='lib/pci_iomap.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_iomap'>
+        <parameter type-id='85196e3f' name='dev' filepath='lib/pci_iomap.c' line='111' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='lib/pci_iomap.c' line='111' column='1'/>
+        <parameter type-id='7359adad' name='maxlen' filepath='lib/pci_iomap.c' line='111' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='pci_iomap_range' mangled-name='pci_iomap_range' filepath='lib/pci_iomap.c' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_iomap_range'>
+        <parameter type-id='85196e3f' name='dev' filepath='lib/pci_iomap.c' line='28' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='lib/pci_iomap.c' line='29' column='1'/>
+        <parameter type-id='7359adad' name='offset' filepath='lib/pci_iomap.c' line='30' column='1'/>
+        <parameter type-id='7359adad' name='maxlen' filepath='lib/pci_iomap.c' line='31' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='pci_ioremap_bar' mangled-name='pci_ioremap_bar' filepath='drivers/pci/pci.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_ioremap_bar'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='209' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='209' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='pci_irq_get_affinity' mangled-name='pci_irq_get_affinity' filepath='include/linux/pci.h' line='1507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_get_affinity'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='5f8a1ac4'/>
+      </function-decl>
+      <function-decl name='pci_irq_vector' mangled-name='pci_irq_vector' filepath='include/linux/pci.h' line='1506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_vector'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_load_and_free_saved_state' mangled-name='pci_load_and_free_saved_state' filepath='drivers/pci/pci.c' line='1785' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_and_free_saved_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1785' column='1'/>
+        <parameter type-id='6efc6709' name='state' filepath='drivers/pci/pci.c' line='1786' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_load_saved_state' mangled-name='pci_load_saved_state' filepath='drivers/pci/pci.c' line='1748' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_saved_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1748' column='1'/>
+        <parameter type-id='e4acc659' name='state' filepath='drivers/pci/pci.c' line='1749' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_match_id' mangled-name='pci_match_id' filepath='drivers/pci/pci-driver.c' line='223' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_match_id'>
+        <parameter type-id='92fc8aa5' name='ids' filepath='drivers/pci/pci-driver.c' line='223' column='1'/>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci-driver.c' line='224' column='1'/>
+        <return type-id='92fc8aa5'/>
+      </function-decl>
+      <function-decl name='pci_read_config_byte' mangled-name='pci_read_config_byte' filepath='drivers/pci/access.c' line='523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_read_config_byte'>
+        <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='523' column='1'/>
+        <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='523' column='1'/>
+        <parameter type-id='8bff8096' name='val' filepath='drivers/pci/access.c' line='523' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_read_config_dword' mangled-name='pci_read_config_dword' filepath='drivers/pci/access.c' line='543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_read_config_dword'>
+        <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='543' column='1'/>
+        <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='543' column='1'/>
+        <parameter type-id='f9409001' name='val' filepath='drivers/pci/access.c' line='544' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_read_config_word' mangled-name='pci_read_config_word' filepath='drivers/pci/access.c' line='533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_read_config_word'>
+        <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='533' column='1'/>
+        <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='533' column='1'/>
+        <parameter type-id='26d4d46f' name='val' filepath='drivers/pci/access.c' line='533' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_release_region' mangled-name='pci_release_region' filepath='include/linux/pci.h' line='1339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_region'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_release_regions' mangled-name='pci_release_regions' filepath='drivers/pci/pci.c' line='3946' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3946' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_release_selected_regions' mangled-name='pci_release_selected_regions' filepath='include/linux/pci.h' line='1342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_selected_regions'>
+        <parameter type-id='85196e3f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_request_irq' mangled-name='pci_request_irq' filepath='drivers/pci/irq.c' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_irq'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/irq.c' line='33' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='drivers/pci/irq.c' line='33' column='1'/>
+        <parameter type-id='29591c9a' name='handler' filepath='drivers/pci/irq.c' line='33' column='1'/>
+        <parameter type-id='29591c9a' name='thread_fn' filepath='drivers/pci/irq.c' line='34' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='drivers/pci/irq.c' line='34' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/pci/irq.c' line='34' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_request_region' mangled-name='pci_request_region' filepath='drivers/pci/pci.c' line='3871' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_region'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3871' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3871' column='1'/>
+        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3871' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_request_regions' mangled-name='pci_request_regions' filepath='drivers/pci/pci.c' line='3965' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3965' column='1'/>
+        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3965' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_request_selected_regions' mangled-name='pci_request_selected_regions' filepath='drivers/pci/pci.c' line='3921' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_selected_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3921' column='1'/>
+        <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3921' column='1'/>
+        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3922' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_rescan_bus' mangled-name='pci_rescan_bus' filepath='drivers/pci/probe.c' line='3227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_rescan_bus'>
+        <parameter type-id='d1feb554' name='bus' filepath='drivers/pci/probe.c' line='3227' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='pci_restore_msi_state' mangled-name='pci_restore_msi_state' filepath='include/linux/pci.h' line='1488' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_msi_state'>
+        <parameter type-id='85196e3f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_restore_state' mangled-name='pci_restore_state' filepath='drivers/pci/pci.c' line='1662' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1662' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_save_state' mangled-name='pci_save_state' filepath='drivers/pci/pci.c' line='1547' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_save_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1547' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_select_bars' mangled-name='pci_select_bars' filepath='drivers/pci/pci.c' line='5986' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_select_bars'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='5986' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/pci/pci.c' line='5986' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_set_master' mangled-name='pci_set_master' filepath='drivers/pci/pci.c' line='4291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_master'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4291' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_set_power_state' mangled-name='pci_set_power_state' filepath='drivers/pci/pci.c' line='1306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_power_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1306' column='1'/>
+        <parameter type-id='49c32219' name='state' filepath='drivers/pci/pci.c' line='1306' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_sriov_configure_simple' mangled-name='pci_sriov_configure_simple' filepath='drivers/pci/iov.c' line='1066' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_sriov_configure_simple'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/iov.c' line='1066' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_virtfn' filepath='drivers/pci/iov.c' line='1066' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_store_saved_state' mangled-name='pci_store_saved_state' filepath='drivers/pci/pci.c' line='1709' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_store_saved_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1709' column='1'/>
+        <return type-id='e4acc659'/>
+      </function-decl>
+      <function-decl name='pci_unregister_driver' mangled-name='pci_unregister_driver' filepath='drivers/pci/pci-driver.c' line='1406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_unregister_driver'>
+        <parameter type-id='85b59624' name='drv' filepath='drivers/pci/pci-driver.c' line='1406' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_vfs_assigned' mangled-name='pci_vfs_assigned' filepath='drivers/pci/iov.c' line='976' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_vfs_assigned'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/iov.c' line='976' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_wake_from_d3' mangled-name='pci_wake_from_d3' filepath='drivers/pci/pci.c' line='2525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_wake_from_d3'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2525' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2525' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_write_config_byte' mangled-name='pci_write_config_byte' filepath='drivers/pci/access.c' line='554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_write_config_byte'>
+        <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='554' column='1'/>
+        <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='554' column='1'/>
+        <parameter type-id='f9b06939' name='val' filepath='drivers/pci/access.c' line='554' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_write_config_dword' mangled-name='pci_write_config_dword' filepath='drivers/pci/access.c' line='570' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_write_config_dword'>
+        <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='570' column='1'/>
+        <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='570' column='1'/>
+        <parameter type-id='19c2251e' name='val' filepath='drivers/pci/access.c' line='571' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pci_write_config_word' mangled-name='pci_write_config_word' filepath='drivers/pci/access.c' line='562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_write_config_word'>
+        <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='562' column='1'/>
+        <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='562' column='1'/>
+        <parameter type-id='1dc6a898' name='val' filepath='drivers/pci/access.c' line='562' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pcibios_resource_to_bus' mangled-name='pcibios_resource_to_bus' filepath='include/linux/pci.h' line='1035' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcibios_resource_to_bus'>
+        <parameter type-id='d1feb554'/>
+        <parameter type-id='e045254b'/>
+        <parameter type-id='c9d64c0d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pcie_aspm_enabled' mangled-name='pcie_aspm_enabled' filepath='drivers/pci/pcie/aspm.c' line='1193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcie_aspm_enabled'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pcie/aspm.c' line='1193' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='pcie_capability_read_word' mangled-name='pcie_capability_read_word' filepath='drivers/pci/access.c' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcie_capability_read_word'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/access.c' line='402' column='1'/>
+        <parameter type-id='95e97e5e' name='pos' filepath='drivers/pci/access.c' line='402' column='1'/>
+        <parameter type-id='26d4d46f' name='val' filepath='drivers/pci/access.c' line='402' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pcie_capability_write_word' mangled-name='pcie_capability_write_word' filepath='drivers/pci/access.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcie_capability_write_word'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/access.c' line='465' column='1'/>
+        <parameter type-id='95e97e5e' name='pos' filepath='drivers/pci/access.c' line='465' column='1'/>
+        <parameter type-id='1dc6a898' name='val' filepath='drivers/pci/access.c' line='465' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='perf_aux_output_begin' mangled-name='perf_aux_output_begin' filepath='kernel/events/ring_buffer.c' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_aux_output_begin'>
+        <parameter type-id='d3b23a45' name='handle' filepath='kernel/events/ring_buffer.c' line='361' column='1'/>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/ring_buffer.c' line='362' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='perf_aux_output_end' mangled-name='perf_aux_output_end' filepath='kernel/events/ring_buffer.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_aux_output_end'>
+        <parameter type-id='d3b23a45' name='handle' filepath='kernel/events/ring_buffer.c' line='477' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='kernel/events/ring_buffer.c' line='477' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_aux_output_flag' mangled-name='perf_aux_output_flag' filepath='kernel/events/ring_buffer.c' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_aux_output_flag'>
+        <parameter type-id='d3b23a45' name='handle' filepath='kernel/events/ring_buffer.c' line='334' column='1'/>
+        <parameter type-id='91ce1af9' name='flags' filepath='kernel/events/ring_buffer.c' line='334' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_event_addr_filters_sync' mangled-name='perf_event_addr_filters_sync' filepath='kernel/events/core.c' line='3158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_addr_filters_sync'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='3158' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_event_create_kernel_counter' mangled-name='perf_event_create_kernel_counter' filepath='include/linux/perf_event.h' line='974' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_create_kernel_counter'>
+        <parameter type-id='20862e61'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='20a2e4e6'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='2bf16f59'/>
+      </function-decl>
+      <function-decl name='perf_event_disable' mangled-name='perf_event_disable' filepath='include/linux/perf_event.h' line='1426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_disable'>
+        <parameter type-id='2bf16f59'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_event_enable' mangled-name='perf_event_enable' filepath='include/linux/perf_event.h' line='1425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_enable'>
+        <parameter type-id='2bf16f59'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_event_pause' mangled-name='perf_event_pause' filepath='kernel/events/core.c' line='5422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_pause'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='5422' column='1'/>
+        <parameter type-id='b50a4934' name='reset' filepath='kernel/events/core.c' line='5422' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='perf_event_read_local' mangled-name='perf_event_read_local' filepath='include/linux/perf_event.h' line='981' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_read_local'>
+        <parameter type-id='2bf16f59'/>
+        <parameter type-id='3df9fd28'/>
+        <parameter type-id='3df9fd28'/>
+        <parameter type-id='3df9fd28'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='perf_event_read_value' mangled-name='perf_event_read_value' filepath='include/linux/perf_event.h' line='983' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_read_value'>
+        <parameter type-id='2bf16f59'/>
+        <parameter type-id='3df9fd28'/>
+        <parameter type-id='3df9fd28'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='perf_event_release_kernel' mangled-name='perf_event_release_kernel' filepath='include/linux/perf_event.h' line='972' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_release_kernel'>
+        <parameter type-id='2bf16f59'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='perf_event_update_userpage' mangled-name='perf_event_update_userpage' filepath='kernel/events/core.c' line='5789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_update_userpage'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='5789' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_get_aux' mangled-name='perf_get_aux' filepath='kernel/events/ring_buffer.c' line='557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_get_aux'>
+        <parameter type-id='d3b23a45' name='handle' filepath='kernel/events/ring_buffer.c' line='557' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='perf_pmu_migrate_context' mangled-name='perf_pmu_migrate_context' filepath='kernel/events/core.c' line='12277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_pmu_migrate_context'>
+        <parameter type-id='0906f5b9' name='pmu' filepath='kernel/events/core.c' line='12277' column='1'/>
+        <parameter type-id='95e97e5e' name='src_cpu' filepath='kernel/events/core.c' line='12277' column='1'/>
+        <parameter type-id='95e97e5e' name='dst_cpu' filepath='kernel/events/core.c' line='12277' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_pmu_register' mangled-name='perf_pmu_register' filepath='kernel/events/core.c' line='10849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_pmu_register'>
+        <parameter type-id='0906f5b9' name='pmu' filepath='kernel/events/core.c' line='10849' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/events/core.c' line='10849' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='kernel/events/core.c' line='10849' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='perf_pmu_unregister' mangled-name='perf_pmu_unregister' filepath='kernel/events/core.c' line='10985' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_pmu_unregister'>
+        <parameter type-id='0906f5b9' name='pmu' filepath='kernel/events/core.c' line='10985' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='perf_trace_buf_alloc' mangled-name='perf_trace_buf_alloc' filepath='include/linux/trace_events.h' line='750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_trace_buf_alloc'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='a89ff5a9'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='perf_trace_run_bpf_submit' mangled-name='perf_trace_run_bpf_submit' filepath='include/linux/trace_events.h' line='779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_trace_run_bpf_submit'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='23d6768c'/>
+        <parameter type-id='91ce1af9'/>
+        <parameter type-id='4616a179'/>
+        <parameter type-id='030d0b18'/>
+        <parameter type-id='f23e2572'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pfn_valid' mangled-name='pfn_valid' filepath='arch/arm64/mm/init.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pfn_valid'>
+        <parameter type-id='7359adad' name='pfn' filepath='arch/arm64/mm/init.c' line='221' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_calibrate' mangled-name='phy_calibrate' filepath='drivers/phy/phy-core.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_calibrate'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='407' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_configure' mangled-name='phy_configure' filepath='drivers/phy/phy-core.c' line='433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_configure'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='433' column='1'/>
+        <parameter type-id='9d3cfa5c' name='opts' filepath='drivers/phy/phy-core.c' line='433' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_exit' mangled-name='phy_exit' filepath='drivers/phy/phy-core.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_exit'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='261' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_init' mangled-name='phy_init' filepath='drivers/phy/phy-core.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_init'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='232' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_power_off' mangled-name='phy_power_off' filepath='drivers/phy/phy-core.c' line='332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_power_off'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='332' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_power_on' mangled-name='phy_power_on' filepath='drivers/phy/phy-core.c' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_power_on'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='290' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='phy_set_mode_ext' mangled-name='phy_set_mode_ext' filepath='drivers/phy/phy-core.c' line='359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_set_mode_ext'>
+        <parameter type-id='503ff1ba' name='phy' filepath='drivers/phy/phy-core.c' line='359' column='1'/>
+        <parameter type-id='79ba09b7' name='mode' filepath='drivers/phy/phy-core.c' line='359' column='1'/>
+        <parameter type-id='95e97e5e' name='submode' filepath='drivers/phy/phy-core.c' line='359' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pid_task' mangled-name='pid_task' filepath='include/linux/pid.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pid_task'>
+        <parameter type-id='b94e5398'/>
+        <parameter type-id='ce78cf46'/>
+        <return type-id='f23e2572'/>
+      </function-decl>
+      <function-decl name='pin_get_name' mangled-name='pin_get_name' filepath='drivers/pinctrl/core.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_get_name'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='167' column='1'/>
+        <parameter type-id='20f5f452' name='pin' filepath='drivers/pinctrl/core.c' line='167' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='include/linux/mm.h' line='1887' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='9f93c9da'/>
+        <parameter type-id='8b6fdee4'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2822' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2822' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2823' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2823' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2893' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2893' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2894' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2894' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2895' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2895' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2896' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2896' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='pinconf_generic_dt_free_map' mangled-name='pinconf_generic_dt_free_map' filepath='drivers/pinctrl/pinconf-generic.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinconf_generic_dt_free_map'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/pinconf-generic.c' line='407' column='1'/>
+        <parameter type-id='9638d26e' name='map' filepath='drivers/pinctrl/pinconf-generic.c' line='408' column='1'/>
+        <parameter type-id='f0981eeb' name='num_maps' filepath='drivers/pinctrl/pinconf-generic.c' line='409' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pinconf_generic_dt_node_to_map' mangled-name='pinconf_generic_dt_node_to_map' filepath='drivers/pinctrl/pinconf-generic.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinconf_generic_dt_node_to_map'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/pinconf-generic.c' line='376' column='1'/>
+        <parameter type-id='9a537bbe' name='np_config' filepath='drivers/pinctrl/pinconf-generic.c' line='377' column='1'/>
+        <parameter type-id='bf73010c' name='map' filepath='drivers/pinctrl/pinconf-generic.c' line='377' column='1'/>
+        <parameter type-id='807869d3' name='num_maps' filepath='drivers/pinctrl/pinconf-generic.c' line='378' column='1'/>
+        <parameter type-id='95da6d1c' name='type' filepath='drivers/pinctrl/pinconf-generic.c' line='378' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_add_gpio_range' mangled-name='pinctrl_add_gpio_range' filepath='drivers/pinctrl/core.c' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_add_gpio_range'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='403' column='1'/>
+        <parameter type-id='e7faa6fb' name='range' filepath='drivers/pinctrl/core.c' line='404' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pinctrl_dev_get_drvdata' mangled-name='pinctrl_dev_get_drvdata' filepath='drivers/pinctrl/core.c' line='87' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_dev_get_drvdata'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='87' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='pinctrl_enable' mangled-name='pinctrl_enable' filepath='drivers/pinctrl/core.c' line='2072' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_enable'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='2072' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_force_default' mangled-name='pinctrl_force_default' filepath='drivers/pinctrl/core.c' line='1491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_force_default'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='1491' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_force_sleep' mangled-name='pinctrl_force_sleep' filepath='drivers/pinctrl/core.c' line='1479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_force_sleep'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='1479' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_lookup_state' mangled-name='pinctrl_lookup_state' filepath='drivers/pinctrl/core.c' line='1205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_lookup_state'>
+        <parameter type-id='73ea90c5' name='p' filepath='drivers/pinctrl/core.c' line='1205' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/pinctrl/core.c' line='1206' column='1'/>
+        <return type-id='f418ceb3'/>
+      </function-decl>
+      <function-decl name='pinctrl_pm_select_default_state' mangled-name='pinctrl_pm_select_default_state' filepath='drivers/pinctrl/core.c' line='1565' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_pm_select_default_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='1565' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_pm_select_idle_state' mangled-name='pinctrl_pm_select_idle_state' filepath='drivers/pinctrl/core.c' line='1588' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_pm_select_idle_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='1588' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_pm_select_sleep_state' mangled-name='pinctrl_pm_select_sleep_state' filepath='drivers/pinctrl/core.c' line='1575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_pm_select_sleep_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='1575' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_put' mangled-name='pinctrl_put' filepath='drivers/pinctrl/core.c' line='1194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_put'>
+        <parameter type-id='73ea90c5' name='p' filepath='drivers/pinctrl/core.c' line='1194' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pinctrl_remove_gpio_range' mangled-name='pinctrl_remove_gpio_range' filepath='drivers/pinctrl/core.c' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_remove_gpio_range'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/core.c' line='509' column='1'/>
+        <parameter type-id='e7faa6fb' name='range' filepath='drivers/pinctrl/core.c' line='510' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pinctrl_select_default_state' mangled-name='pinctrl_select_default_state' filepath='drivers/pinctrl/core.c' line='1550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_select_default_state'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/pinctrl/core.c' line='1550' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_select_state' mangled-name='pinctrl_select_state' filepath='drivers/pinctrl/core.c' line='1318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_select_state'>
+        <parameter type-id='73ea90c5' name='p' filepath='drivers/pinctrl/core.c' line='1318' column='1'/>
+        <parameter type-id='f418ceb3' name='state' filepath='drivers/pinctrl/core.c' line='1318' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pinctrl_utils_free_map' mangled-name='pinctrl_utils_free_map' filepath='drivers/pinctrl/pinctrl-utils.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinctrl_utils_free_map'>
+        <parameter type-id='10216dc5' name='pctldev' filepath='drivers/pinctrl/pinctrl-utils.c' line='123' column='1'/>
+        <parameter type-id='9638d26e' name='map' filepath='drivers/pinctrl/pinctrl-utils.c' line='124' column='1'/>
+        <parameter type-id='f0981eeb' name='num_maps' filepath='drivers/pinctrl/pinctrl-utils.c' line='124' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pipe_lock' mangled-name='pipe_lock' filepath='fs/pipe.c' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pipe_lock'>
+        <parameter type-id='15d29710' name='pipe' filepath='fs/pipe.c' line='84' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pipe_unlock' mangled-name='pipe_unlock' filepath='fs/pipe.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pipe_unlock'>
+        <parameter type-id='15d29710' name='pipe' filepath='fs/pipe.c' line='93' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pktgen_xfrm_outer_mode_output' mangled-name='pktgen_xfrm_outer_mode_output' filepath='net/xfrm/xfrm_output.c' line='405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pktgen_xfrm_outer_mode_output'>
+        <parameter type-id='328dda6e' name='x' filepath='net/xfrm/xfrm_output.c' line='405' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/xfrm/xfrm_output.c' line='405' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='platform_bus' type-id='66e487eb' mangled-name='platform_bus' visibility='default' filepath='drivers/base/platform.c' line='38' column='1' elf-symbol-id='platform_bus'/>
+      <var-decl name='platform_bus_type' type-id='b31bfc8a' mangled-name='platform_bus_type' visibility='default' filepath='drivers/base/platform.c' line='1360' column='1' elf-symbol-id='platform_bus_type'/>
+      <function-decl name='platform_device_add' mangled-name='platform_device_add' filepath='include/linux/platform_device.h' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add'>
+        <parameter type-id='db362995'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_device_add_data' mangled-name='platform_device_add_data' filepath='drivers/base/platform.c' line='510' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add_data'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='510' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/platform.c' line='510' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/base/platform.c' line='511' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_device_add_properties' mangled-name='platform_device_add_properties' filepath='drivers/base/platform.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add_properties'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='536' column='1'/>
+        <parameter type-id='9e1d140c' name='properties' filepath='drivers/base/platform.c' line='537' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_device_add_resources' mangled-name='platform_device_add_resources' filepath='drivers/base/platform.c' line='482' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add_resources'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='482' column='1'/>
+        <parameter type-id='e153f6de' name='res' filepath='drivers/base/platform.c' line='483' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/base/platform.c' line='483' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_device_alloc' mangled-name='platform_device_alloc' filepath='include/linux/platform_device.h' line='194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_alloc'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='db362995'/>
+      </function-decl>
+      <function-decl name='platform_device_del' mangled-name='platform_device_del' filepath='include/linux/platform_device.h' line='203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_del'>
+        <parameter type-id='db362995'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='platform_device_put' mangled-name='platform_device_put' filepath='include/linux/platform_device.h' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_put'>
+        <parameter type-id='db362995'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='platform_device_register' mangled-name='platform_device_register' filepath='include/linux/platform_device.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_register'>
+        <parameter type-id='db362995'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_device_register_full' mangled-name='platform_device_register_full' filepath='include/linux/platform_device.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_register_full'>
+        <parameter type-id='91d6c443'/>
+        <return type-id='db362995'/>
+      </function-decl>
+      <function-decl name='platform_device_unregister' mangled-name='platform_device_unregister' filepath='include/linux/platform_device.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_unregister'>
+        <parameter type-id='db362995'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='platform_driver_unregister' mangled-name='platform_driver_unregister' filepath='drivers/base/platform.c' line='824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_driver_unregister'>
+        <parameter type-id='d53c2eb5' name='drv' filepath='drivers/base/platform.c' line='824' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='platform_find_device_by_driver' mangled-name='platform_find_device_by_driver' filepath='drivers/base/platform.c' line='1381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_find_device_by_driver'>
+        <parameter type-id='fa0b179b' name='start' filepath='drivers/base/platform.c' line='1381' column='1'/>
+        <parameter type-id='d5ddffb9' name='drv' filepath='drivers/base/platform.c' line='1382' column='1'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='platform_get_irq' mangled-name='platform_get_irq' filepath='include/linux/platform_device.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_get_irq_byname' mangled-name='platform_get_irq_byname' filepath='include/linux/platform_device.h' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq_byname'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_get_irq_optional' mangled-name='platform_get_irq_optional' filepath='include/linux/platform_device.h' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq_optional'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='platform_get_resource' mangled-name='platform_get_resource' filepath='include/linux/platform_device.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_resource'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='c9d64c0d'/>
+      </function-decl>
+      <function-decl name='platform_get_resource_byname' mangled-name='platform_get_resource_byname' filepath='include/linux/platform_device.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_resource_byname'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='c9d64c0d'/>
+      </function-decl>
+      <function-decl name='platform_irq_count' mangled-name='platform_irq_count' filepath='drivers/base/platform.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_irq_count'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='278' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_generic_runtime_resume' mangled-name='pm_generic_runtime_resume' filepath='include/linux/pm_runtime.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_generic_runtime_resume'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_generic_runtime_suspend' mangled-name='pm_generic_runtime_suspend' filepath='include/linux/pm_runtime.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_generic_runtime_suspend'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_genpd_add_subdomain' mangled-name='pm_genpd_add_subdomain' filepath='drivers/base/power/domain.c' line='1856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_genpd_add_subdomain'>
+        <parameter type-id='855e3679' name='genpd' filepath='drivers/base/power/domain.c' line='1856' column='1'/>
+        <parameter type-id='855e3679' name='subdomain' filepath='drivers/base/power/domain.c' line='1857' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_genpd_init' mangled-name='pm_genpd_init' filepath='drivers/base/power/domain.c' line='1955' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_genpd_init'>
+        <parameter type-id='855e3679' name='genpd' filepath='drivers/base/power/domain.c' line='1955' column='1'/>
+        <parameter type-id='5db9bd89' name='gov' filepath='drivers/base/power/domain.c' line='1956' column='1'/>
+        <parameter type-id='b50a4934' name='is_off' filepath='drivers/base/power/domain.c' line='1956' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_genpd_remove' mangled-name='pm_genpd_remove' filepath='drivers/base/power/domain.c' line='2082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_genpd_remove'>
+        <parameter type-id='855e3679' name='genpd' filepath='drivers/base/power/domain.c' line='2082' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_genpd_remove_subdomain' mangled-name='pm_genpd_remove_subdomain' filepath='drivers/base/power/domain.c' line='1874' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_genpd_remove_subdomain'>
+        <parameter type-id='855e3679' name='genpd' filepath='drivers/base/power/domain.c' line='1874' column='1'/>
+        <parameter type-id='855e3679' name='subdomain' filepath='drivers/base/power/domain.c' line='1875' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='pm_power_off' type-id='953b12f8' mangled-name='pm_power_off' visibility='default' filepath='arch/arm64/kernel/process.c' line='72' column='1' elf-symbol-id='pm_power_off'/>
+      <function-decl name='pm_relax' mangled-name='pm_relax' filepath='drivers/base/power/wakeup.c' line='777' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_relax'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='777' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_runtime_allow' mangled-name='pm_runtime_allow' filepath='include/linux/pm_runtime.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_allow'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_runtime_enable' mangled-name='pm_runtime_enable' filepath='include/linux/pm_runtime.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_enable'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_runtime_forbid' mangled-name='pm_runtime_forbid' filepath='include/linux/pm_runtime.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_forbid'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_runtime_force_resume' mangled-name='pm_runtime_force_resume' filepath='drivers/base/power/runtime.c' line='1854' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_force_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1854' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_runtime_force_suspend' mangled-name='pm_runtime_force_suspend' filepath='drivers/base/power/runtime.c' line='1806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_force_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1806' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_runtime_get_if_active' mangled-name='pm_runtime_get_if_active' filepath='drivers/base/power/runtime.c' line='1160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_get_if_active'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1160' column='1'/>
+        <parameter type-id='b50a4934' name='ign_usage_count' filepath='drivers/base/power/runtime.c' line='1160' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pm_runtime_irq_safe' mangled-name='pm_runtime_irq_safe' filepath='drivers/base/power/runtime.c' line='1548' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_irq_safe'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1548' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_runtime_set_autosuspend_delay' mangled-name='pm_runtime_set_autosuspend_delay' filepath='include/linux/pm_runtime.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_set_autosuspend_delay'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_stay_awake' mangled-name='pm_stay_awake' filepath='drivers/base/power/wakeup.c' line='668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_stay_awake'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='668' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='pm_suspend_global_flags' type-id='f0981eeb' mangled-name='pm_suspend_global_flags' visibility='default' filepath='kernel/power/suspend.c' line='55' column='1' elf-symbol-id='pm_suspend_global_flags'/>
+      <function-decl name='pm_system_wakeup' mangled-name='pm_system_wakeup' filepath='drivers/base/power/wakeup.c' line='972' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_system_wakeup'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_wakeup_dev_event' mangled-name='pm_wakeup_dev_event' filepath='include/linux/pm_wakeup.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_wakeup_dev_event'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pm_wakeup_ws_event' mangled-name='pm_wakeup_ws_event' filepath='include/linux/pm_wakeup.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_wakeup_ws_event'>
+        <parameter type-id='1ea237a6'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='policy_has_boost_freq' mangled-name='policy_has_boost_freq' filepath='drivers/cpufreq/freq_table.c' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='policy_has_boost_freq'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/freq_table.c' line='18' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='power_supply_changed' mangled-name='power_supply_changed' filepath='include/linux/power_supply.h' line='439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_changed'>
+        <parameter type-id='c0c93c9e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='power_supply_get_by_name' mangled-name='power_supply_get_by_name' filepath='include/linux/power_supply.h' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_by_name'>
+        <parameter type-id='80f4b756'/>
+        <return type-id='c0c93c9e'/>
+      </function-decl>
+      <function-decl name='power_supply_get_by_phandle_array' mangled-name='power_supply_get_by_phandle_array' filepath='drivers/power/supply/power_supply_core.c' line='574' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_by_phandle_array'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/power/supply/power_supply_core.c' line='574' column='1'/>
+        <parameter type-id='80f4b756' name='property' filepath='drivers/power/supply/power_supply_core.c' line='575' column='1'/>
+        <parameter type-id='30ca8f5c' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='576' column='1'/>
+        <parameter type-id='79a0948f' name='size' filepath='drivers/power/supply/power_supply_core.c' line='577' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='power_supply_get_drvdata' mangled-name='power_supply_get_drvdata' filepath='drivers/power/supply/power_supply_core.c' line='1438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_drvdata'>
+        <parameter type-id='c0c93c9e' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='1438' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='power_supply_get_property' mangled-name='power_supply_get_property' filepath='drivers/power/supply/power_supply_core.c' line='946' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_property'>
+        <parameter type-id='c0c93c9e' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='946' column='1'/>
+        <parameter type-id='5f78aa17' name='psp' filepath='drivers/power/supply/power_supply_core.c' line='947' column='1'/>
+        <parameter type-id='2e53d20f' name='val' filepath='drivers/power/supply/power_supply_core.c' line='948' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='power_supply_put' mangled-name='power_supply_put' filepath='include/linux/power_supply.h' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_put'>
+        <parameter type-id='c0c93c9e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='power_supply_reg_notifier' mangled-name='power_supply_reg_notifier' filepath='drivers/power/supply/power_supply_core.c' line='1005' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_reg_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/power/supply/power_supply_core.c' line='1005' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='power_supply_register' mangled-name='power_supply_register' filepath='drivers/power/supply/power_supply_core.c' line='1305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_register'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/power/supply/power_supply_core.c' line='1305' column='1'/>
+        <parameter type-id='cb9cd99f' name='desc' filepath='drivers/power/supply/power_supply_core.c' line='1306' column='1'/>
+        <parameter type-id='048b3ad6' name='cfg' filepath='drivers/power/supply/power_supply_core.c' line='1307' column='1'/>
+        <return type-id='c0c93c9e'/>
+      </function-decl>
+      <function-decl name='power_supply_set_property' mangled-name='power_supply_set_property' filepath='include/linux/power_supply.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_set_property'>
+        <parameter type-id='c0c93c9e'/>
+        <parameter type-id='5f78aa17'/>
+        <parameter type-id='f3abafd4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='power_supply_unreg_notifier' mangled-name='power_supply_unreg_notifier' filepath='drivers/power/supply/power_supply_core.c' line='1011' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_unreg_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/power/supply/power_supply_core.c' line='1011' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='power_supply_unregister' mangled-name='power_supply_unregister' filepath='include/linux/power_supply.h' line='484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_unregister'>
+        <parameter type-id='c0c93c9e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='prandom_bytes' mangled-name='prandom_bytes' filepath='include/linux/prandom.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_bytes'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='prandom_u32' mangled-name='prandom_u32' filepath='include/linux/prandom.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_u32'>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='preempt_schedule' mangled-name='preempt_schedule' filepath='arch/arm64/include/asm/preempt.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='preempt_schedule_notrace' mangled-name='preempt_schedule_notrace' filepath='arch/arm64/include/asm/preempt.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule_notrace'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='prepare_to_wait' mangled-name='prepare_to_wait' filepath='include/linux/wait.h' line='1154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait'>
+        <parameter type-id='3f8b2ed3'/>
+        <parameter type-id='db9d03e3'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='prepare_to_wait_event' mangled-name='prepare_to_wait_event' filepath='include/linux/wait.h' line='1156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait_event'>
+        <parameter type-id='3f8b2ed3'/>
+        <parameter type-id='db9d03e3'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='print_hex_dump' mangled-name='print_hex_dump' filepath='include/linux/printk.h' line='581' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='print_hex_dump'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='printk' mangled-name='printk' filepath='include/linux/printk.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printk'>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='printk_deferred' mangled-name='printk_deferred' filepath='include/linux/printk.h' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printk_deferred'>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='proc_create' mangled-name='proc_create' filepath='include/linux/proc_fs.h' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='d077e928'/>
+        <parameter type-id='33d70f0f'/>
+        <return type-id='d077e928'/>
+      </function-decl>
+      <function-decl name='proc_create_data' mangled-name='proc_create_data' filepath='include/linux/proc_fs.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create_data'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='d077e928'/>
+        <parameter type-id='33d70f0f'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='d077e928'/>
+      </function-decl>
+      <function-decl name='proc_create_single_data' mangled-name='proc_create_single_data' filepath='include/linux/proc_fs.h' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create_single_data'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2594b00f'/>
+        <parameter type-id='d077e928'/>
+        <parameter type-id='0131eb61'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='d077e928'/>
+      </function-decl>
+      <function-decl name='proc_dointvec' mangled-name='proc_dointvec' filepath='kernel/sysctl.c' line='825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dointvec'>
+        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='825' column='1'/>
+        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='825' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='825' column='1'/>
+        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='826' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='826' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='proc_dostring' mangled-name='proc_dostring' filepath='kernel/sysctl.c' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dostring'>
+        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='382' column='1'/>
+        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='382' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='383' column='1'/>
+        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='383' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='383' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='proc_douintvec_minmax' mangled-name='proc_douintvec_minmax' filepath='kernel/sysctl.c' line='1051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_douintvec_minmax'>
+        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='1051' column='1'/>
+        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='1051' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='1052' column='1'/>
+        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='1052' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='1052' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='proc_mkdir' mangled-name='proc_mkdir' filepath='include/linux/proc_fs.h' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_mkdir'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='d077e928'/>
+        <return type-id='d077e928'/>
+      </function-decl>
+      <function-decl name='proc_mkdir_data' mangled-name='proc_mkdir_data' filepath='fs/proc/generic.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_mkdir_data'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/proc/generic.c' line='506' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/proc/generic.c' line='506' column='1'/>
+        <parameter type-id='d077e928' name='parent' filepath='fs/proc/generic.c' line='507' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/proc/generic.c' line='507' column='1'/>
+        <return type-id='d077e928'/>
+      </function-decl>
+      <function-decl name='proc_remove' mangled-name='proc_remove' filepath='include/linux/proc_fs.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_remove'>
+        <parameter type-id='d077e928'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='proc_set_size' mangled-name='proc_set_size' filepath='fs/proc/generic.c' line='664' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_set_size'>
+        <parameter type-id='d077e928' name='de' filepath='fs/proc/generic.c' line='664' column='1'/>
+        <parameter type-id='69bf7bee' name='size' filepath='fs/proc/generic.c' line='664' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='proto_register' mangled-name='proto_register' filepath='include/net/sock.h' line='1253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proto_register'>
+        <parameter type-id='d2524501'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='proto_unregister' mangled-name='proto_unregister' filepath='include/net/sock.h' line='1254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proto_unregister'>
+        <parameter type-id='d2524501'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ps2_begin_command' mangled-name='ps2_begin_command' filepath='drivers/input/serio/libps2.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_begin_command'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='101' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ps2_cmd_aborted' mangled-name='ps2_cmd_aborted' filepath='drivers/input/serio/libps2.c' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_cmd_aborted'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='480' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ps2_command' mangled-name='ps2_command' filepath='drivers/input/serio/libps2.c' line='327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_command'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='327' column='1'/>
+        <parameter type-id='8bff8096' name='param' filepath='drivers/input/serio/libps2.c' line='327' column='1'/>
+        <parameter type-id='f0981eeb' name='command' filepath='drivers/input/serio/libps2.c' line='327' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ps2_drain' mangled-name='ps2_drain' filepath='drivers/input/serio/libps2.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_drain'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='122' column='1'/>
+        <parameter type-id='b59d7dce' name='maxbytes' filepath='drivers/input/serio/libps2.c' line='122' column='1'/>
+        <parameter type-id='f0981eeb' name='timeout' filepath='drivers/input/serio/libps2.c' line='122' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ps2_end_command' mangled-name='ps2_end_command' filepath='drivers/input/serio/libps2.c' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_end_command'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='109' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ps2_handle_ack' mangled-name='ps2_handle_ack' filepath='drivers/input/serio/libps2.c' line='390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_handle_ack'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='390' column='1'/>
+        <parameter type-id='f9b06939' name='data' filepath='drivers/input/serio/libps2.c' line='390' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='ps2_handle_response' mangled-name='ps2_handle_response' filepath='drivers/input/serio/libps2.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_handle_response'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='460' column='1'/>
+        <parameter type-id='f9b06939' name='data' filepath='drivers/input/serio/libps2.c' line='460' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='ps2_init' mangled-name='ps2_init' filepath='drivers/input/serio/libps2.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_init'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='376' column='1'/>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/libps2.c' line='376' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ps2_sendbyte' mangled-name='ps2_sendbyte' filepath='drivers/input/serio/libps2.c' line='86' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_sendbyte'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='86' column='1'/>
+        <parameter type-id='f9b06939' name='byte' filepath='drivers/input/serio/libps2.c' line='86' column='1'/>
+        <parameter type-id='f0981eeb' name='timeout' filepath='drivers/input/serio/libps2.c' line='86' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ps2_sliced_command' mangled-name='ps2_sliced_command' filepath='drivers/input/serio/libps2.c' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_sliced_command'>
+        <parameter type-id='e357ec39' name='ps2dev' filepath='drivers/input/serio/libps2.c' line='347' column='1'/>
+        <parameter type-id='f9b06939' name='command' filepath='drivers/input/serio/libps2.c' line='347' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pskb_expand_head' mangled-name='pskb_expand_head' filepath='include/linux/skbuff.h' line='1168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pskb_expand_head'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='put_device' mangled-name='put_device' filepath='include/linux/device.h' line='931' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_device'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='put_disk' mangled-name='put_disk' filepath='block/genhd.c' line='1812' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_disk'>
+        <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='1812' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='put_pid' mangled-name='put_pid' filepath='include/linux/pid.h' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_pid'>
+        <parameter type-id='b94e5398'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='put_sg_io_hdr' mangled-name='put_sg_io_hdr' filepath='block/scsi_ioctl.c' line='548' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_sg_io_hdr'>
+        <parameter type-id='8a390024' name='hdr' filepath='block/scsi_ioctl.c' line='548' column='1'/>
+        <parameter type-id='eaa32e2f' name='argp' filepath='block/scsi_ioctl.c' line='548' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='put_unused_fd' mangled-name='put_unused_fd' filepath='include/linux/file.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_unused_fd'>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='put_vaddr_frames' mangled-name='put_vaddr_frames' filepath='mm/frame_vector.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_vaddr_frames'>
+        <parameter type-id='d9fbdc06' name='vec' filepath='mm/frame_vector.c' line='123' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pwm_apply_state' mangled-name='pwm_apply_state' filepath='drivers/pwm/core.c' line='574' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pwm_apply_state'>
+        <parameter type-id='f06adae0' name='pwm' filepath='drivers/pwm/core.c' line='574' column='1'/>
+        <parameter type-id='73a11e20' name='state' filepath='drivers/pwm/core.c' line='574' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pwm_get_chip_data' mangled-name='pwm_get_chip_data' filepath='drivers/pwm/core.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pwm_get_chip_data'>
+        <parameter type-id='f06adae0' name='pwm' filepath='drivers/pwm/core.c' line='232' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='pwm_set_chip_data' mangled-name='pwm_set_chip_data' filepath='drivers/pwm/core.c' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pwm_set_chip_data'>
+        <parameter type-id='f06adae0' name='pwm' filepath='drivers/pwm/core.c' line='215' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/pwm/core.c' line='215' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pwmchip_add' mangled-name='pwmchip_add' filepath='drivers/pwm/core.c' line='341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pwmchip_add'>
+        <parameter type-id='00cf0c80' name='chip' filepath='drivers/pwm/core.c' line='341' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pwmchip_remove' mangled-name='pwmchip_remove' filepath='drivers/pwm/core.c' line='356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pwmchip_remove'>
+        <parameter type-id='00cf0c80' name='chip' filepath='drivers/pwm/core.c' line='356' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='qcom_smem_state_get' mangled-name='qcom_smem_state_get' filepath='drivers/soc/qcom/smem_state.c' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='qcom_smem_state_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/soc/qcom/smem_state.c' line='88' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/soc/qcom/smem_state.c' line='89' column='1'/>
+        <parameter type-id='807869d3' name='bit' filepath='drivers/soc/qcom/smem_state.c' line='90' column='1'/>
+        <return type-id='01df4674'/>
+      </function-decl>
+      <function-decl name='qcom_smem_state_register' mangled-name='qcom_smem_state_register' filepath='drivers/soc/qcom/smem_state.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='qcom_smem_state_register'>
+        <parameter type-id='9a537bbe' name='of_node' filepath='drivers/soc/qcom/smem_state.c' line='160' column='1'/>
+        <parameter type-id='b86c9da0' name='ops' filepath='drivers/soc/qcom/smem_state.c' line='161' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/soc/qcom/smem_state.c' line='162' column='1'/>
+        <return type-id='01df4674'/>
+      </function-decl>
+      <function-decl name='qcom_smem_state_unregister' mangled-name='qcom_smem_state_unregister' filepath='drivers/soc/qcom/smem_state.c' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='qcom_smem_state_unregister'>
+        <parameter type-id='01df4674' name='state' filepath='drivers/soc/qcom/smem_state.c' line='188' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='qcom_smem_state_update_bits' mangled-name='qcom_smem_state_update_bits' filepath='drivers/soc/qcom/smem_state.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='qcom_smem_state_update_bits'>
+        <parameter type-id='01df4674' name='state' filepath='drivers/soc/qcom/smem_state.c' line='45' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='drivers/soc/qcom/smem_state.c' line='46' column='1'/>
+        <parameter type-id='19c2251e' name='value' filepath='drivers/soc/qcom/smem_state.c' line='47' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='queue_delayed_work_on' mangled-name='queue_delayed_work_on' filepath='kernel/workqueue.c' line='1694' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='queue_delayed_work_on'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/workqueue.c' line='1694' column='1'/>
+        <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='1694' column='1'/>
+        <parameter type-id='1a7ee447' name='dwork' filepath='kernel/workqueue.c' line='1695' column='1'/>
+        <parameter type-id='7359adad' name='delay' filepath='kernel/workqueue.c' line='1695' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='queue_work_on' mangled-name='queue_work_on' filepath='include/linux/workqueue.h' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='queue_work_on'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='242e3d19'/>
+        <parameter type-id='83c1bde6'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='radix_tree_delete' mangled-name='radix_tree_delete' filepath='lib/radix-tree.c' line='1443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_delete'>
+        <parameter type-id='60075f2a' name='root' filepath='lib/radix-tree.c' line='1443' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/radix-tree.c' line='1443' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='radix_tree_delete_item' mangled-name='radix_tree_delete_item' filepath='include/linux/radix-tree.h' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_delete_item'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='radix_tree_gang_lookup' mangled-name='radix_tree_gang_lookup' filepath='include/linux/radix-tree.h' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_gang_lookup'>
+        <parameter type-id='bb0f13d1'/>
+        <parameter type-id='63e171df'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='radix_tree_insert' mangled-name='radix_tree_insert' filepath='include/linux/radix-tree.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_insert'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='radix_tree_iter_delete' mangled-name='radix_tree_iter_delete' filepath='lib/radix-tree.c' line='1392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_iter_delete'>
+        <parameter type-id='60075f2a' name='root' filepath='lib/radix-tree.c' line='1392' column='1'/>
+        <parameter type-id='0cbbabe1' name='iter' filepath='lib/radix-tree.c' line='1393' column='1'/>
+        <parameter type-id='63e171df' name='slot' filepath='lib/radix-tree.c' line='1393' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='radix_tree_iter_resume' mangled-name='radix_tree_iter_resume' filepath='lib/radix-tree.c' line='1133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_iter_resume'>
+        <parameter type-id='63e171df' name='slot' filepath='lib/radix-tree.c' line='1133' column='1'/>
+        <parameter type-id='0cbbabe1' name='iter' filepath='lib/radix-tree.c' line='1134' column='1'/>
+        <return type-id='63e171df'/>
+      </function-decl>
+      <function-decl name='radix_tree_lookup' mangled-name='radix_tree_lookup' filepath='include/linux/radix-tree.h' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_lookup'>
+        <parameter type-id='bb0f13d1'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='radix_tree_next_chunk' mangled-name='radix_tree_next_chunk' filepath='include/linux/radix-tree.h' line='307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_next_chunk'>
+        <parameter type-id='bb0f13d1'/>
+        <parameter type-id='0cbbabe1'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='63e171df'/>
+      </function-decl>
+      <function-decl name='radix_tree_preload' mangled-name='radix_tree_preload' filepath='include/linux/radix-tree.h' line='237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_preload'>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rational_best_approximation' mangled-name='rational_best_approximation' filepath='lib/math/rational.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rational_best_approximation'>
+        <parameter type-id='7359adad' name='given_numerator' filepath='lib/math/rational.c' line='35' column='1'/>
+        <parameter type-id='7359adad' name='given_denominator' filepath='lib/math/rational.c' line='35' column='1'/>
+        <parameter type-id='7359adad' name='max_numerator' filepath='lib/math/rational.c' line='36' column='1'/>
+        <parameter type-id='7359adad' name='max_denominator' filepath='lib/math/rational.c' line='36' column='1'/>
+        <parameter type-id='1d2c2b85' name='best_numerator' filepath='lib/math/rational.c' line='37' column='1'/>
+        <parameter type-id='1d2c2b85' name='best_denominator' filepath='lib/math/rational.c' line='37' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='raw_notifier_call_chain' mangled-name='raw_notifier_call_chain' filepath='kernel/notifier.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='raw_notifier_call_chain'>
+        <parameter type-id='dc20ab67' name='nh' filepath='kernel/notifier.c' line='407' column='1'/>
+        <parameter type-id='7359adad' name='val' filepath='kernel/notifier.c' line='408' column='1'/>
+        <parameter type-id='eaa32e2f' name='v' filepath='kernel/notifier.c' line='408' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='raw_notifier_chain_register' mangled-name='raw_notifier_chain_register' filepath='include/linux/notifier.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='raw_notifier_chain_register'>
+        <parameter type-id='dc20ab67'/>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rb_erase' mangled-name='rb_erase' filepath='include/linux/rbtree.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_erase'>
+        <parameter type-id='e6532500'/>
+        <parameter type-id='c5bcc2c0'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rb_first' mangled-name='rb_first' filepath='include/linux/rbtree.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_first'>
+        <parameter type-id='c4139a7d'/>
+        <return type-id='e6532500'/>
+      </function-decl>
+      <function-decl name='rb_insert_color' mangled-name='rb_insert_color' filepath='include/linux/rbtree.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_insert_color'>
+        <parameter type-id='e6532500'/>
+        <parameter type-id='c5bcc2c0'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rb_next' mangled-name='rb_next' filepath='include/linux/rbtree.h' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_next'>
+        <parameter type-id='47b73425'/>
+        <return type-id='e6532500'/>
+      </function-decl>
+      <function-decl name='rb_prev' mangled-name='rb_prev' filepath='include/linux/rbtree.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_prev'>
+        <parameter type-id='47b73425'/>
+        <return type-id='e6532500'/>
+      </function-decl>
+      <function-decl name='rb_replace_node' mangled-name='rb_replace_node' filepath='lib/rbtree.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_replace_node'>
+        <parameter type-id='e6532500' name='victim' filepath='lib/rbtree.c' line='553' column='1'/>
+        <parameter type-id='e6532500' name='new' filepath='lib/rbtree.c' line='553' column='1'/>
+        <parameter type-id='c5bcc2c0' name='root' filepath='lib/rbtree.c' line='554' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rdev_get_drvdata' mangled-name='rdev_get_drvdata' filepath='drivers/regulator/core.c' line='5537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rdev_get_drvdata'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/core.c' line='5537' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='rdev_get_id' mangled-name='rdev_get_id' filepath='drivers/regulator/core.c' line='5571' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rdev_get_id'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/core.c' line='5571' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='refcount_dec_and_mutex_lock' mangled-name='refcount_dec_and_mutex_lock' filepath='lib/refcount.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_dec_and_mutex_lock'>
+        <parameter type-id='35a0b4f8' name='r' filepath='lib/refcount.c' line='113' column='1'/>
+        <parameter type-id='e0ea832a' name='lock' filepath='lib/refcount.c' line='113' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='refcount_dec_not_one' mangled-name='refcount_dec_not_one' filepath='include/linux/refcount.h' line='363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_dec_not_one'>
+        <parameter type-id='35a0b4f8'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='refcount_warn_saturate' mangled-name='refcount_warn_saturate' filepath='include/linux/refcount.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_warn_saturate'>
+        <parameter type-id='35a0b4f8'/>
+        <parameter type-id='ff0618be'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='reg_initiator_name' mangled-name='reg_initiator_name' filepath='net/wireless/reg.c' line='1642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reg_initiator_name'>
+        <parameter type-id='790cc131' name='initiator' filepath='net/wireless/reg.c' line='1642' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='regcache_cache_bypass' mangled-name='regcache_cache_bypass' filepath='drivers/base/regmap/regcache.c' line='538' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regcache_cache_bypass'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regcache.c' line='538' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/base/regmap/regcache.c' line='538' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regcache_cache_only' mangled-name='regcache_cache_only' filepath='drivers/base/regmap/regcache.c' line='495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regcache_cache_only'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regcache.c' line='495' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/base/regmap/regcache.c' line='495' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regcache_drop_region' mangled-name='regcache_drop_region' filepath='drivers/base/regmap/regcache.c' line='463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regcache_drop_region'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regcache.c' line='463' column='1'/>
+        <parameter type-id='f0981eeb' name='min' filepath='drivers/base/regmap/regcache.c' line='463' column='1'/>
+        <parameter type-id='f0981eeb' name='max' filepath='drivers/base/regmap/regcache.c' line='464' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regcache_mark_dirty' mangled-name='regcache_mark_dirty' filepath='drivers/base/regmap/regcache.c' line='518' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regcache_mark_dirty'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regcache.c' line='518' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regcache_sync' mangled-name='regcache_sync' filepath='drivers/base/regmap/regcache.c' line='339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regcache_sync'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regcache.c' line='339' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_blkdev' mangled-name='register_blkdev' filepath='block/genhd.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_blkdev'>
+        <parameter type-id='f0981eeb' name='major' filepath='block/genhd.c' line='440' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='block/genhd.c' line='440' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_candev' mangled-name='register_candev' filepath='drivers/net/can/dev/dev.c' line='1275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_candev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='1275' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_chrdev_region' mangled-name='register_chrdev_region' filepath='fs/char_dev.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_chrdev_region'>
+        <parameter type-id='8504f260' name='from' filepath='fs/char_dev.c' line='200' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='200' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/char_dev.c' line='200' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_console' mangled-name='register_console' filepath='kernel/printk/printk.c' line='2776' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_console'>
+        <parameter type-id='b9aa0100' name='newcon' filepath='kernel/printk/printk.c' line='2776' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='register_die_notifier' mangled-name='register_die_notifier' filepath='kernel/notifier.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_die_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/notifier.c' line='552' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_filesystem' mangled-name='register_filesystem' filepath='include/linux/fs.h' line='2360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_filesystem'>
+        <parameter type-id='21e53d44'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_inet6addr_notifier' mangled-name='register_inet6addr_notifier' filepath='net/ipv6/addrconf_core.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_inet6addr_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/ipv6/addrconf_core.c' line='95' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_inetaddr_notifier' mangled-name='register_inetaddr_notifier' filepath='net/ipv4/devinet.c' line='1451' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_inetaddr_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/ipv4/devinet.c' line='1451' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_kernel_break_hook' mangled-name='register_kernel_break_hook' filepath='arch/arm64/kernel/debug-monitors.c' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_kernel_break_hook'>
+        <parameter type-id='26d099e0' name='hook' filepath='arch/arm64/kernel/debug-monitors.c' line='294' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='register_netdev' mangled-name='register_netdev' filepath='include/linux/netdevice.h' line='4476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdev'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_netdevice' mangled-name='register_netdevice' filepath='include/linux/netdevice.h' line='2911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdevice'>
+        <parameter type-id='68a2d05b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_netdevice_notifier' mangled-name='register_netdevice_notifier' filepath='include/linux/netdevice.h' line='2743' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdevice_notifier'>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_netevent_notifier' mangled-name='register_netevent_notifier' filepath='net/core/netevent.c' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netevent_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/core/netevent.c' line='28' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_oom_notifier' mangled-name='register_oom_notifier' filepath='mm/oom_kill.c' line='1075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_oom_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='mm/oom_kill.c' line='1075' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_pernet_device' mangled-name='register_pernet_device' filepath='include/net/net_namespace.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_pernet_device'>
+        <parameter type-id='d6907f4c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_pernet_subsys' mangled-name='register_pernet_subsys' filepath='net/core/net_namespace.c' line='1276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_pernet_subsys'>
+        <parameter type-id='d6907f4c' name='ops' filepath='net/core/net_namespace.c' line='1276' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_pm_notifier' mangled-name='register_pm_notifier' filepath='kernel/power/main.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_pm_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/power/main.c' line='71' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_reboot_notifier' mangled-name='register_reboot_notifier' filepath='kernel/reboot.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_reboot_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/reboot.c' line='91' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_restart_handler' mangled-name='register_restart_handler' filepath='kernel/reboot.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_restart_handler'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/reboot.c' line='183' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_shrinker' mangled-name='register_shrinker' filepath='include/linux/shrinker.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_shrinker'>
+        <parameter type-id='4be14597'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_syscore_ops' mangled-name='register_syscore_ops' filepath='include/linux/syscore_ops.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_syscore_ops'>
+        <parameter type-id='cbd24a98'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='register_sysctl' mangled-name='register_sysctl' filepath='fs/proc/proc_sysctl.c' line='1376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_sysctl'>
+        <parameter type-id='80f4b756' name='path' filepath='fs/proc/proc_sysctl.c' line='1376' column='1'/>
+        <parameter type-id='631dc3c1' name='table' filepath='fs/proc/proc_sysctl.c' line='1376' column='1'/>
+        <return type-id='11b101bb'/>
+      </function-decl>
+      <function-decl name='register_sysctl_table' mangled-name='register_sysctl_table' filepath='fs/proc/proc_sysctl.c' line='1588' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_sysctl_table'>
+        <parameter type-id='631dc3c1' name='table' filepath='fs/proc/proc_sysctl.c' line='1588' column='1'/>
+        <return type-id='11b101bb'/>
+      </function-decl>
+      <function-decl name='register_virtio_device' mangled-name='register_virtio_device' filepath='drivers/virtio/virtio.c' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_virtio_device'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='344' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_virtio_driver' mangled-name='register_virtio_driver' filepath='include/linux/virtio.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_virtio_driver'>
+        <parameter type-id='f350dc99'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='register_vmap_purge_notifier' mangled-name='register_vmap_purge_notifier' filepath='mm/vmalloc.c' line='1270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_vmap_purge_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='mm/vmalloc.c' line='1270' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_add_irq_chip' mangled-name='regmap_add_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_add_irq_chip'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_flags' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/base/regmap/regmap-irq.c' line='863' column='1'/>
+        <parameter type-id='78965926' name='chip' filepath='drivers/base/regmap/regmap-irq.c' line='863' column='1'/>
+        <parameter type-id='a731d0ec' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='864' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_async_complete' mangled-name='regmap_async_complete' filepath='drivers/base/regmap/regmap.c' line='3153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_async_complete'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='3153' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_bulk_read' mangled-name='regmap_bulk_read' filepath='drivers/base/regmap/regmap.c' line='2949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_bulk_read'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2949' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='2949' column='1'/>
+        <parameter type-id='eaa32e2f' name='val' filepath='drivers/base/regmap/regmap.c' line='2949' column='1'/>
+        <parameter type-id='b59d7dce' name='val_count' filepath='drivers/base/regmap/regmap.c' line='2950' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_bulk_write' mangled-name='regmap_bulk_write' filepath='drivers/base/regmap/regmap.c' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_bulk_write'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2205' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='2205' column='1'/>
+        <parameter type-id='eaa32e2f' name='val' filepath='drivers/base/regmap/regmap.c' line='2205' column='1'/>
+        <parameter type-id='b59d7dce' name='val_count' filepath='drivers/base/regmap/regmap.c' line='2206' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_del_irq_chip' mangled-name='regmap_del_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_del_irq_chip'>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='879' column='1'/>
+        <parameter type-id='a2782ece' name='d' filepath='drivers/base/regmap/regmap-irq.c' line='879' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regmap_exit' mangled-name='regmap_exit' filepath='drivers/base/regmap/regmap.c' line='1476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_exit'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='1476' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regmap_field_read' mangled-name='regmap_field_read' filepath='drivers/base/regmap/regmap.c' line='2889' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_field_read'>
+        <parameter type-id='476eb32c' name='field' filepath='drivers/base/regmap/regmap.c' line='2889' column='1'/>
+        <parameter type-id='807869d3' name='val' filepath='drivers/base/regmap/regmap.c' line='2889' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_field_update_bits_base' mangled-name='regmap_field_update_bits_base' filepath='drivers/base/regmap/regmap.c' line='2148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_field_update_bits_base'>
+        <parameter type-id='476eb32c' name='field' filepath='drivers/base/regmap/regmap.c' line='2148' column='1'/>
+        <parameter type-id='f0981eeb' name='mask' filepath='drivers/base/regmap/regmap.c' line='2149' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='drivers/base/regmap/regmap.c' line='2149' column='1'/>
+        <parameter type-id='d8e6b335' name='change' filepath='drivers/base/regmap/regmap.c' line='2150' column='1'/>
+        <parameter type-id='b50a4934' name='async' filepath='drivers/base/regmap/regmap.c' line='2150' column='1'/>
+        <parameter type-id='b50a4934' name='force' filepath='drivers/base/regmap/regmap.c' line='2150' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_get_device' mangled-name='regmap_get_device' filepath='drivers/base/regmap/regmap.c' line='1549' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_get_device'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='1549' column='1'/>
+        <return type-id='fa0b179b'/>
+      </function-decl>
+      <function-decl name='regmap_irq_get_domain' mangled-name='regmap_irq_get_domain' filepath='drivers/base/regmap/regmap-irq.c' line='1073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_irq_get_domain'>
+        <parameter type-id='a2782ece' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1073' column='1'/>
+        <return type-id='7544e824'/>
+      </function-decl>
+      <function-decl name='regmap_irq_get_virq' mangled-name='regmap_irq_get_virq' filepath='drivers/base/regmap/regmap-irq.c' line='1053' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_irq_get_virq'>
+        <parameter type-id='a2782ece' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1053' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='1053' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_multi_reg_write' mangled-name='regmap_multi_reg_write' filepath='drivers/base/regmap/regmap.c' line='2512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_multi_reg_write'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2512' column='1'/>
+        <parameter type-id='0472a368' name='regs' filepath='drivers/base/regmap/regmap.c' line='2512' column='1'/>
+        <parameter type-id='95e97e5e' name='num_regs' filepath='drivers/base/regmap/regmap.c' line='2513' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_multi_reg_write_bypassed' mangled-name='regmap_multi_reg_write_bypassed' filepath='drivers/base/regmap/regmap.c' line='2545' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_multi_reg_write_bypassed'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2545' column='1'/>
+        <parameter type-id='0472a368' name='regs' filepath='drivers/base/regmap/regmap.c' line='2546' column='1'/>
+        <parameter type-id='95e97e5e' name='num_regs' filepath='drivers/base/regmap/regmap.c' line='2547' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_raw_read' mangled-name='regmap_raw_read' filepath='drivers/base/regmap/regmap.c' line='2742' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_raw_read'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2742' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='2742' column='1'/>
+        <parameter type-id='eaa32e2f' name='val' filepath='drivers/base/regmap/regmap.c' line='2742' column='1'/>
+        <parameter type-id='b59d7dce' name='val_len' filepath='drivers/base/regmap/regmap.c' line='2743' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_raw_write' mangled-name='regmap_raw_write' filepath='drivers/base/regmap/regmap.c' line='2048' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_raw_write'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2048' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='2048' column='1'/>
+        <parameter type-id='eaa32e2f' name='val' filepath='drivers/base/regmap/regmap.c' line='2049' column='1'/>
+        <parameter type-id='b59d7dce' name='val_len' filepath='drivers/base/regmap/regmap.c' line='2049' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_raw_write_async' mangled-name='regmap_raw_write_async' filepath='drivers/base/regmap/regmap.c' line='2589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_raw_write_async'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2589' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='2589' column='1'/>
+        <parameter type-id='eaa32e2f' name='val' filepath='drivers/base/regmap/regmap.c' line='2590' column='1'/>
+        <parameter type-id='b59d7dce' name='val_len' filepath='drivers/base/regmap/regmap.c' line='2590' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_read' mangled-name='regmap_read' filepath='include/linux/regmap.h' line='1064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_read'>
+        <parameter type-id='29af9a71'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='807869d3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_register_patch' mangled-name='regmap_register_patch' filepath='drivers/base/regmap/regmap.c' line='3194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_register_patch'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='3194' column='1'/>
+        <parameter type-id='0472a368' name='regs' filepath='drivers/base/regmap/regmap.c' line='3194' column='1'/>
+        <parameter type-id='95e97e5e' name='num_regs' filepath='drivers/base/regmap/regmap.c' line='3195' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_update_bits_base' mangled-name='regmap_update_bits_base' filepath='include/linux/regmap.h' line='1071' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_update_bits_base'>
+        <parameter type-id='29af9a71'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='d8e6b335'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regmap_write' mangled-name='regmap_write' filepath='include/linux/regmap.h' line='1049' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_write'>
+        <parameter type-id='29af9a71'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_bulk_disable' mangled-name='regulator_bulk_disable' filepath='include/linux/regulator/consumer.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_disable'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='776946b4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_bulk_enable' mangled-name='regulator_bulk_enable' filepath='include/linux/regulator/consumer.h' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_enable'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='776946b4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_bulk_get' mangled-name='regulator_bulk_get' filepath='drivers/regulator/core.c' line='4585' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/core.c' line='4585' column='1'/>
+        <parameter type-id='95e97e5e' name='num_consumers' filepath='drivers/regulator/core.c' line='4585' column='1'/>
+        <parameter type-id='776946b4' name='consumers' filepath='drivers/regulator/core.c' line='4586' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_count_voltages' mangled-name='regulator_count_voltages' filepath='drivers/regulator/core.c' line='3046' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_count_voltages'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='3046' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_disable' mangled-name='regulator_disable' filepath='include/linux/regulator/consumer.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_disable'>
+        <parameter type-id='850c13f6'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_disable_regmap' mangled-name='regulator_disable_regmap' filepath='drivers/regulator/helpers.c' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_disable_regmap'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='85' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_enable' mangled-name='regulator_enable' filepath='include/linux/regulator/consumer.h' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_enable'>
+        <parameter type-id='850c13f6'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_enable_regmap' mangled-name='regulator_enable_regmap' filepath='drivers/regulator/helpers.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_enable_regmap'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='59' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_get' mangled-name='regulator_get' filepath='drivers/regulator/core.c' line='2056' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/core.c' line='2056' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/regulator/core.c' line='2056' column='1'/>
+        <return type-id='850c13f6'/>
+      </function-decl>
+      <function-decl name='regulator_get_optional' mangled-name='regulator_get_optional' filepath='drivers/regulator/core.c' line='2109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/core.c' line='2109' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/regulator/core.c' line='2109' column='1'/>
+        <return type-id='850c13f6'/>
+      </function-decl>
+      <function-decl name='regulator_get_voltage' mangled-name='regulator_get_voltage' filepath='include/linux/regulator/consumer.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get_voltage'>
+        <parameter type-id='850c13f6'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_get_voltage_sel_regmap' mangled-name='regulator_get_voltage_sel_regmap' filepath='drivers/regulator/helpers.c' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get_voltage_sel_regmap'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='235' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_is_enabled' mangled-name='regulator_is_enabled' filepath='drivers/regulator/core.c' line='3023' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_is_enabled'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='3023' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_is_enabled_regmap' mangled-name='regulator_is_enabled_regmap' filepath='drivers/regulator/helpers.c' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_is_enabled_regmap'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='27' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_is_supported_voltage' mangled-name='regulator_is_supported_voltage' filepath='drivers/regulator/core.c' line='3171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_is_supported_voltage'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='3171' column='1'/>
+        <parameter type-id='95e97e5e' name='min_uV' filepath='drivers/regulator/core.c' line='3172' column='1'/>
+        <parameter type-id='95e97e5e' name='max_uV' filepath='drivers/regulator/core.c' line='3172' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_list_voltage_linear' mangled-name='regulator_list_voltage_linear' filepath='drivers/regulator/helpers.c' line='521' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_list_voltage_linear'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='521' column='1'/>
+        <parameter type-id='f0981eeb' name='selector' filepath='drivers/regulator/helpers.c' line='522' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_list_voltage_linear_range' mangled-name='regulator_list_voltage_linear_range' filepath='drivers/regulator/helpers.c' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_list_voltage_linear_range'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='625' column='1'/>
+        <parameter type-id='f0981eeb' name='selector' filepath='drivers/regulator/helpers.c' line='626' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_list_voltage_table' mangled-name='regulator_list_voltage_table' filepath='drivers/regulator/helpers.c' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_list_voltage_table'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='642' column='1'/>
+        <parameter type-id='f0981eeb' name='selector' filepath='drivers/regulator/helpers.c' line='643' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_map_voltage_ascend' mangled-name='regulator_map_voltage_ascend' filepath='drivers/regulator/helpers.c' line='330' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_map_voltage_ascend'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='330' column='1'/>
+        <parameter type-id='95e97e5e' name='min_uV' filepath='drivers/regulator/helpers.c' line='331' column='1'/>
+        <parameter type-id='95e97e5e' name='max_uV' filepath='drivers/regulator/helpers.c' line='331' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_map_voltage_linear' mangled-name='regulator_map_voltage_linear' filepath='include/linux/regulator/driver.h' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_map_voltage_linear'>
+        <parameter type-id='43c38462'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_notifier_call_chain' mangled-name='regulator_notifier_call_chain' filepath='drivers/regulator/core.c' line='4779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_notifier_call_chain'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/core.c' line='4779' column='1'/>
+        <parameter type-id='7359adad' name='event' filepath='drivers/regulator/core.c' line='4780' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/regulator/core.c' line='4780' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_put' mangled-name='regulator_put' filepath='drivers/regulator/core.c' line='2169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_put'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='2169' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regulator_register' mangled-name='regulator_register' filepath='drivers/regulator/core.c' line='5172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_register'>
+        <parameter type-id='5629bd41' name='regulator_desc' filepath='drivers/regulator/core.c' line='5172' column='1'/>
+        <parameter type-id='661ccd0c' name='cfg' filepath='drivers/regulator/core.c' line='5173' column='1'/>
+        <return type-id='43c38462'/>
+      </function-decl>
+      <function-decl name='regulator_set_load' mangled-name='regulator_set_load' filepath='drivers/regulator/core.c' line='4450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_set_load'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='4450' column='1'/>
+        <parameter type-id='95e97e5e' name='uA_load' filepath='drivers/regulator/core.c' line='4450' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_set_voltage' mangled-name='regulator_set_voltage' filepath='drivers/regulator/core.c' line='3930' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_set_voltage'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='3930' column='1'/>
+        <parameter type-id='95e97e5e' name='min_uV' filepath='drivers/regulator/core.c' line='3930' column='1'/>
+        <parameter type-id='95e97e5e' name='max_uV' filepath='drivers/regulator/core.c' line='3930' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_set_voltage_sel_regmap' mangled-name='regulator_set_voltage_sel_regmap' filepath='drivers/regulator/helpers.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_set_voltage_sel_regmap'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='261' column='1'/>
+        <parameter type-id='f0981eeb' name='sel' filepath='drivers/regulator/helpers.c' line='261' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulator_unregister' mangled-name='regulator_unregister' filepath='drivers/regulator/core.c' line='5414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_unregister'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/core.c' line='5414' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='regulatory_hint' mangled-name='regulatory_hint' filepath='net/wireless/reg.c' line='3220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulatory_hint'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/reg.c' line='3220' column='1'/>
+        <parameter type-id='80f4b756' name='alpha2' filepath='net/wireless/reg.c' line='3220' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulatory_set_wiphy_regd' mangled-name='regulatory_set_wiphy_regd' filepath='net/wireless/reg.c' line='3951' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulatory_set_wiphy_regd'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/reg.c' line='3951' column='1'/>
+        <parameter type-id='c24e05b4' name='rd' filepath='net/wireless/reg.c' line='3952' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='regulatory_set_wiphy_regd_sync_rtnl' mangled-name='regulatory_set_wiphy_regd_sync_rtnl' filepath='net/wireless/reg.c' line='3964' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulatory_set_wiphy_regd_sync_rtnl'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/reg.c' line='3964' column='1'/>
+        <parameter type-id='c24e05b4' name='rd' filepath='net/wireless/reg.c' line='3965' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='release_firmware' mangled-name='release_firmware' filepath='include/linux/firmware.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='release_firmware'>
+        <parameter type-id='fce0537d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='release_sock' mangled-name='release_sock' filepath='include/net/sock.h' line='1600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='release_sock'>
+        <parameter type-id='f772df6d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='remap_pfn_range' mangled-name='remap_pfn_range' filepath='include/linux/mm.h' line='2899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_pfn_range'>
+        <parameter type-id='2ae08426'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='2e2dcbd3'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='remap_vmalloc_range' mangled-name='remap_vmalloc_range' filepath='include/linux/vmalloc.h' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_vmalloc_range'>
+        <parameter type-id='2ae08426'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='remove_cpu' mangled-name='remove_cpu' filepath='kernel/cpu.c' line='1151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_cpu'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='kernel/cpu.c' line='1151' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='remove_proc_entry' mangled-name='remove_proc_entry' filepath='include/linux/proc_fs.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_proc_entry'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='d077e928'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='remove_wait_queue' mangled-name='remove_wait_queue' filepath='include/linux/wait.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_wait_queue'>
+        <parameter type-id='3f8b2ed3'/>
+        <parameter type-id='db9d03e3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='request_firmware' mangled-name='request_firmware' filepath='drivers/base/firmware_loader/main.c' line='869' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_firmware'>
+        <parameter type-id='6c2331f5' name='firmware_p' filepath='drivers/base/firmware_loader/main.c' line='869' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/firmware_loader/main.c' line='869' column='1'/>
+        <parameter type-id='fa0b179b' name='device' filepath='drivers/base/firmware_loader/main.c' line='870' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='request_firmware_direct' mangled-name='request_firmware_direct' filepath='drivers/base/firmware_loader/main.c' line='921' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_firmware_direct'>
+        <parameter type-id='6c2331f5' name='firmware_p' filepath='drivers/base/firmware_loader/main.c' line='921' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/firmware_loader/main.c' line='922' column='1'/>
+        <parameter type-id='fa0b179b' name='device' filepath='drivers/base/firmware_loader/main.c' line='922' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='request_firmware_into_buf' mangled-name='request_firmware_into_buf' filepath='drivers/base/firmware_loader/main.c' line='999' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_firmware_into_buf'>
+        <parameter type-id='6c2331f5' name='firmware_p' filepath='drivers/base/firmware_loader/main.c' line='999' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/firmware_loader/main.c' line='999' column='1'/>
+        <parameter type-id='fa0b179b' name='device' filepath='drivers/base/firmware_loader/main.c' line='1000' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='drivers/base/firmware_loader/main.c' line='1000' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/base/firmware_loader/main.c' line='1000' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='request_firmware_nowait' mangled-name='request_firmware_nowait' filepath='drivers/base/firmware_loader/main.c' line='1112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_firmware_nowait'>
+        <parameter type-id='2730d015' name='module' filepath='drivers/base/firmware_loader/main.c' line='1113' column='1'/>
+        <parameter type-id='b50a4934' name='uevent' filepath='drivers/base/firmware_loader/main.c' line='1113' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/firmware_loader/main.c' line='1114' column='1'/>
+        <parameter type-id='fa0b179b' name='device' filepath='drivers/base/firmware_loader/main.c' line='1114' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/firmware_loader/main.c' line='1114' column='1'/>
+        <parameter type-id='eaa32e2f' name='context' filepath='drivers/base/firmware_loader/main.c' line='1114' column='1'/>
+        <parameter type-id='c8e4e392' name='cont' filepath='drivers/base/firmware_loader/main.c' line='1115' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='request_threaded_irq' mangled-name='request_threaded_irq' filepath='include/linux/interrupt.h' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_threaded_irq'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='29591c9a'/>
+        <parameter type-id='29591c9a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='reservation_ww_class' type-id='f0dc3c34' mangled-name='reservation_ww_class' visibility='default' filepath='drivers/dma-buf/dma-resv.c' line='52' column='1' elf-symbol-id='reservation_ww_class'/>
+      <function-decl name='reset_control_assert' mangled-name='reset_control_assert' filepath='include/linux/reset.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_assert'>
+        <parameter type-id='9f9b8114'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='reset_control_deassert' mangled-name='reset_control_deassert' filepath='include/linux/reset.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_deassert'>
+        <parameter type-id='9f9b8114'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='reset_control_reset' mangled-name='reset_control_reset' filepath='drivers/reset/core.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_reset'>
+        <parameter type-id='9f9b8114' name='rstc' filepath='drivers/reset/core.c' line='293' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='resume_cpus' mangled-name='resume_cpus' filepath='kernel/cpu.c' line='1304' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='resume_cpus'>
+        <parameter type-id='74bccedd' name='cpus' filepath='kernel/cpu.c' line='1304' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='return_address' mangled-name='return_address' filepath='arch/arm64/kernel/return_address.c' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='return_address'>
+        <parameter type-id='f0981eeb' name='level' filepath='arch/arm64/kernel/return_address.c' line='35' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='revalidate_disk_size' mangled-name='revalidate_disk_size' filepath='fs/block_dev.c' line='1370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='revalidate_disk_size'>
+        <parameter type-id='33c599da' name='disk' filepath='fs/block_dev.c' line='1370' column='1'/>
+        <parameter type-id='b50a4934' name='verbose' filepath='fs/block_dev.c' line='1370' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='rfc1042_header' type-id='51f2d827' mangled-name='rfc1042_header' visibility='default' filepath='net/wireless/util.c' line='2073' column='1' elf-symbol-id='rfc1042_header'/>
+      <function-decl name='rfkill_alloc' mangled-name='rfkill_alloc' filepath='include/linux/rfkill.h' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_alloc'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='c3f0f7d9'/>
+        <parameter type-id='6a6a70e7'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='c5b94c75'/>
+      </function-decl>
+      <function-decl name='rfkill_destroy' mangled-name='rfkill_destroy' filepath='include/linux/rfkill.h' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_destroy'>
+        <parameter type-id='c5b94c75'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rfkill_find_type' mangled-name='rfkill_find_type' filepath='net/rfkill/core.c' line='653' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_find_type'>
+        <parameter type-id='80f4b756' name='name' filepath='net/rfkill/core.c' line='653' column='1'/>
+        <return type-id='6bac1cb5'/>
+      </function-decl>
+      <function-decl name='rfkill_init_sw_state' mangled-name='rfkill_init_sw_state' filepath='net/rfkill/core.c' line='592' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_init_sw_state'>
+        <parameter type-id='c5b94c75' name='rfkill' filepath='net/rfkill/core.c' line='592' column='1'/>
+        <parameter type-id='b50a4934' name='blocked' filepath='net/rfkill/core.c' line='592' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rfkill_register' mangled-name='rfkill_register' filepath='include/linux/rfkill.h' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_register'>
+        <parameter type-id='c5b94c75'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rfkill_unregister' mangled-name='rfkill_unregister' filepath='include/linux/rfkill.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_unregister'>
+        <parameter type-id='c5b94c75'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rhashtable_destroy' mangled-name='rhashtable_destroy' filepath='lib/rhashtable.c' line='1168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_destroy'>
+        <parameter type-id='e6726ce3' name='ht' filepath='lib/rhashtable.c' line='1168' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rhashtable_init' mangled-name='rhashtable_init' filepath='include/linux/rhashtable-types.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_init'>
+        <parameter type-id='e6726ce3'/>
+        <parameter type-id='44dbf2cd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rhashtable_insert_slow' mangled-name='rhashtable_insert_slow' filepath='include/linux/rhashtable.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_insert_slow'>
+        <parameter type-id='e6726ce3'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='3cc8739a'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='rht_bucket_nested' mangled-name='rht_bucket_nested' filepath='include/linux/rhashtable.h' line='264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rht_bucket_nested'>
+        <parameter type-id='6a4a6779'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='33f7eff4'/>
+      </function-decl>
+      <function-decl name='rht_bucket_nested_insert' mangled-name='rht_bucket_nested_insert' filepath='include/linux/rhashtable.h' line='268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rht_bucket_nested_insert'>
+        <parameter type-id='e6726ce3'/>
+        <parameter type-id='35e7a722'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='33f7eff4'/>
+      </function-decl>
+      <function-decl name='root_device_unregister' mangled-name='root_device_unregister' filepath='drivers/base/core.c' line='3856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='root_device_unregister'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3856' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='root_task_group' type-id='2d863538' mangled-name='root_task_group' visibility='default' filepath='kernel/sched/core.c' line='7433' column='1' elf-symbol-id='root_task_group'/>
+      <function-decl name='round_jiffies_up' mangled-name='round_jiffies_up' filepath='kernel/time/timer.c' line='461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='round_jiffies_up'>
+        <parameter type-id='7359adad' name='j' filepath='kernel/time/timer.c' line='461' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='rpmsg_register_device' mangled-name='rpmsg_register_device' filepath='drivers/rpmsg/rpmsg_core.c' line='568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rpmsg_register_device'>
+        <parameter type-id='41ebc58b' name='rpdev' filepath='drivers/rpmsg/rpmsg_core.c' line='568' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rpmsg_send' mangled-name='rpmsg_send' filepath='drivers/rpmsg/rpmsg_core.c' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rpmsg_send'>
+        <parameter type-id='feb59272' name='ept' filepath='drivers/rpmsg/rpmsg_core.c' line='107' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/rpmsg/rpmsg_core.c' line='107' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/rpmsg/rpmsg_core.c' line='107' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rpmsg_trysend' mangled-name='rpmsg_trysend' filepath='drivers/rpmsg/rpmsg_core.c' line='196' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rpmsg_trysend'>
+        <parameter type-id='feb59272' name='ept' filepath='drivers/rpmsg/rpmsg_core.c' line='196' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/rpmsg/rpmsg_core.c' line='196' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/rpmsg/rpmsg_core.c' line='196' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rpmsg_unregister_device' mangled-name='rpmsg_unregister_device' filepath='drivers/rpmsg/rpmsg_core.c' line='592' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rpmsg_unregister_device'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/rpmsg/rpmsg_core.c' line='592' column='1'/>
+        <parameter type-id='cc769659' name='chinfo' filepath='drivers/rpmsg/rpmsg_core.c' line='593' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rproc_add' mangled-name='rproc_add' filepath='drivers/remoteproc/remoteproc_core.c' line='2004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_add'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_core.c' line='2004' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rproc_add_subdev' mangled-name='rproc_add_subdev' filepath='drivers/remoteproc/remoteproc_core.c' line='2370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_add_subdev'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_core.c' line='2370' column='1'/>
+        <parameter type-id='3591079f' name='subdev' filepath='drivers/remoteproc/remoteproc_core.c' line='2370' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rproc_alloc' mangled-name='rproc_alloc' filepath='drivers/remoteproc/remoteproc_core.c' line='2179' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_alloc'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/remoteproc/remoteproc_core.c' line='2179' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/remoteproc/remoteproc_core.c' line='2179' column='1'/>
+        <parameter type-id='48daa4cd' name='ops' filepath='drivers/remoteproc/remoteproc_core.c' line='2180' column='1'/>
+        <parameter type-id='80f4b756' name='firmware' filepath='drivers/remoteproc/remoteproc_core.c' line='2181' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/remoteproc/remoteproc_core.c' line='2181' column='1'/>
+        <return type-id='5771c601'/>
+      </function-decl>
+      <function-decl name='rproc_coredump_add_custom_segment' mangled-name='rproc_coredump_add_custom_segment' filepath='drivers/remoteproc/remoteproc_coredump.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_coredump_add_custom_segment'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_coredump.c' line='79' column='1'/>
+        <parameter type-id='cf29c9b3' name='da' filepath='drivers/remoteproc/remoteproc_coredump.c' line='80' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/remoteproc/remoteproc_coredump.c' line='80' column='1'/>
+        <parameter type-id='244b1321' name='dumpfn' filepath='drivers/remoteproc/remoteproc_coredump.c' line='81' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/remoteproc/remoteproc_coredump.c' line='85' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rproc_coredump_add_segment' mangled-name='rproc_coredump_add_segment' filepath='drivers/remoteproc/remoteproc_coredump.c' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_coredump_add_segment'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_coredump.c' line='48' column='1'/>
+        <parameter type-id='cf29c9b3' name='da' filepath='drivers/remoteproc/remoteproc_coredump.c' line='48' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/remoteproc/remoteproc_coredump.c' line='48' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rproc_coredump_set_elf_info' mangled-name='rproc_coredump_set_elf_info' filepath='drivers/remoteproc/remoteproc_coredump.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_coredump_set_elf_info'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_coredump.c' line='114' column='1'/>
+        <parameter type-id='f9b06939' name='class' filepath='drivers/remoteproc/remoteproc_coredump.c' line='114' column='1'/>
+        <parameter type-id='1dc6a898' name='machine' filepath='drivers/remoteproc/remoteproc_coredump.c' line='114' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rproc_del' mangled-name='rproc_del' filepath='drivers/remoteproc/remoteproc_core.c' line='2292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_del'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_core.c' line='2292' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rproc_elf_get_boot_addr' mangled-name='rproc_elf_get_boot_addr' filepath='drivers/remoteproc/remoteproc_elf_loader.c' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_elf_get_boot_addr'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_elf_loader.c' line='126' column='1'/>
+        <parameter type-id='fce0537d' name='fw' filepath='drivers/remoteproc/remoteproc_elf_loader.c' line='126' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='rproc_free' mangled-name='rproc_free' filepath='drivers/remoteproc/remoteproc_core.c' line='2255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_free'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_core.c' line='2255' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rproc_get_by_child' mangled-name='rproc_get_by_child' filepath='drivers/remoteproc/remoteproc_core.c' line='2393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_get_by_child'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/remoteproc/remoteproc_core.c' line='2393' column='1'/>
+        <return type-id='5771c601'/>
+      </function-decl>
+      <function-decl name='rproc_remove_subdev' mangled-name='rproc_remove_subdev' filepath='drivers/remoteproc/remoteproc_core.c' line='2381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_remove_subdev'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_core.c' line='2381' column='1'/>
+        <parameter type-id='3591079f' name='subdev' filepath='drivers/remoteproc/remoteproc_core.c' line='2381' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rproc_report_crash' mangled-name='rproc_report_crash' filepath='drivers/remoteproc/remoteproc_core.c' line='2415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rproc_report_crash'>
+        <parameter type-id='5771c601' name='rproc' filepath='drivers/remoteproc/remoteproc_core.c' line='2415' column='1'/>
+        <parameter type-id='25751b8f' name='type' filepath='drivers/remoteproc/remoteproc_core.c' line='2415' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='rps_needed' type-id='237c0d27' mangled-name='rps_needed' visibility='default' filepath='net/core/dev.c' line='4289' column='1' elf-symbol-id='rps_needed'/>
+      <function-decl name='rt_mutex_lock' mangled-name='rt_mutex_lock' filepath='kernel/locking/rtmutex.c' line='1496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rt_mutex_lock'>
+        <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1496' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rt_mutex_trylock' mangled-name='rt_mutex_trylock' filepath='kernel/locking/rtmutex.c' line='1582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rt_mutex_trylock'>
+        <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1582' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rt_mutex_unlock' mangled-name='rt_mutex_unlock' filepath='kernel/locking/rtmutex.c' line='1602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rt_mutex_unlock'>
+        <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1602' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rtc_class_close' mangled-name='rtc_class_close' filepath='include/linux/rtc.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_class_close'>
+        <parameter type-id='5992ae83'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rtc_class_open' mangled-name='rtc_class_open' filepath='include/linux/rtc.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_class_open'>
+        <parameter type-id='80f4b756'/>
+        <return type-id='5992ae83'/>
+      </function-decl>
+      <function-decl name='rtc_read_time' mangled-name='rtc_read_time' filepath='include/linux/rtc.h' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_read_time'>
+        <parameter type-id='5992ae83'/>
+        <parameter type-id='2b8e7a42'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rtc_time64_to_tm' mangled-name='rtc_time64_to_tm' filepath='drivers/rtc/lib.c' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_time64_to_tm'>
+        <parameter type-id='1afd27ac' name='time' filepath='drivers/rtc/lib.c' line='49' column='1'/>
+        <parameter type-id='2b8e7a42' name='tm' filepath='drivers/rtc/lib.c' line='49' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rtc_tm_to_time64' mangled-name='rtc_tm_to_time64' filepath='drivers/rtc/lib.c' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_tm_to_time64'>
+        <parameter type-id='2b8e7a42' name='tm' filepath='drivers/rtc/lib.c' line='115' column='1'/>
+        <return type-id='1afd27ac'/>
+      </function-decl>
+      <function-decl name='rtc_update_irq' mangled-name='rtc_update_irq' filepath='drivers/rtc/interface.c' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_update_irq'>
+        <parameter type-id='5992ae83' name='rtc' filepath='drivers/rtc/interface.c' line='686' column='1'/>
+        <parameter type-id='7359adad' name='num' filepath='drivers/rtc/interface.c' line='687' column='1'/>
+        <parameter type-id='7359adad' name='events' filepath='drivers/rtc/interface.c' line='687' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rtc_valid_tm' mangled-name='rtc_valid_tm' filepath='drivers/rtc/lib.c' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_valid_tm'>
+        <parameter type-id='2b8e7a42' name='tm' filepath='drivers/rtc/lib.c' line='94' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rtc_year_days' mangled-name='rtc_year_days' filepath='drivers/rtc/lib.c' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_year_days'>
+        <parameter type-id='f0981eeb' name='day' filepath='drivers/rtc/lib.c' line='39' column='1'/>
+        <parameter type-id='f0981eeb' name='month' filepath='drivers/rtc/lib.c' line='39' column='1'/>
+        <parameter type-id='f0981eeb' name='year' filepath='drivers/rtc/lib.c' line='39' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rtnl_is_locked' mangled-name='rtnl_is_locked' filepath='net/core/rtnetlink.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_is_locked'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rtnl_link_register' mangled-name='rtnl_link_register' filepath='include/net/rtnetlink.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_link_register'>
+        <parameter type-id='959ab461'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rtnl_link_unregister' mangled-name='rtnl_link_unregister' filepath='include/net/rtnetlink.h' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_link_unregister'>
+        <parameter type-id='959ab461'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rtnl_lock' mangled-name='rtnl_lock' filepath='net/core/rtnetlink.c' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_lock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='rtnl_trylock' mangled-name='rtnl_trylock' filepath='net/core/rtnetlink.c' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_trylock'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='rtnl_unlock' mangled-name='rtnl_unlock' filepath='net/core/rtnetlink.c' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_unlock'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='runqueues' type-id='d5ee6a94' mangled-name='runqueues' visibility='default' filepath='kernel/sched/core.c' line='56' column='1' elf-symbol-id='runqueues'/>
+      <function-decl name='sb800_prefetch' mangled-name='sb800_prefetch' filepath='drivers/usb/host/pci-quirks.c' line='194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sb800_prefetch'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/host/pci-quirks.c' line='194' column='1'/>
+        <parameter type-id='95e97e5e' name='on' filepath='drivers/usb/host/pci-quirks.c' line='194' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scatterwalk_ffwd' mangled-name='scatterwalk_ffwd' filepath='include/crypto/scatterwalk.h' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scatterwalk_ffwd'>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='bf3ef905'/>
+      </function-decl>
+      <function-decl name='scatterwalk_map_and_copy' mangled-name='scatterwalk_map_and_copy' filepath='crypto/scatterwalk.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scatterwalk_map_and_copy'>
+        <parameter type-id='eaa32e2f' name='buf' filepath='crypto/scatterwalk.c' line='55' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='crypto/scatterwalk.c' line='55' column='1'/>
+        <parameter type-id='f0981eeb' name='start' filepath='crypto/scatterwalk.c' line='56' column='1'/>
+        <parameter type-id='f0981eeb' name='nbytes' filepath='crypto/scatterwalk.c' line='56' column='1'/>
+        <parameter type-id='95e97e5e' name='out' filepath='crypto/scatterwalk.c' line='56' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sched_clock' mangled-name='sched_clock' filepath='include/linux/sched/clock.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_clock'>
+        <return type-id='0d77e947'/>
+      </function-decl>
+      <var-decl name='sched_feat_keys' type-id='9cc39ce1' mangled-name='sched_feat_keys' visibility='default' filepath='kernel/sched/debug.c' line='80' column='1' elf-symbol-id='sched_feat_keys'/>
+      <function-decl name='sched_set_fifo' mangled-name='sched_set_fifo' filepath='kernel/sched/core.c' line='5816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_set_fifo'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5816' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sched_setattr_nocheck' mangled-name='sched_setattr_nocheck' filepath='kernel/sched/core.c' line='5772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setattr_nocheck'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5772' column='1'/>
+        <parameter type-id='8abbb6c3' name='attr' filepath='kernel/sched/core.c' line='5772' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sched_setscheduler' mangled-name='sched_setscheduler' filepath='kernel/sched/core.c' line='5759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5759' column='1'/>
+        <parameter type-id='95e97e5e' name='policy' filepath='kernel/sched/core.c' line='5759' column='1'/>
+        <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5760' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sched_setscheduler_nocheck' mangled-name='sched_setscheduler_nocheck' filepath='include/linux/sched.h' line='1739' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler_nocheck'>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='36fca399'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sched_show_task' mangled-name='sched_show_task' filepath='kernel/sched/core.c' line='6690' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_show_task'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='6690' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sched_trace_cfs_rq_avg' mangled-name='sched_trace_cfs_rq_avg' filepath='kernel/sched/fair.c' line='11527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_avg'>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11527' column='1'/>
+        <return type-id='847e6fee'/>
+      </function-decl>
+      <function-decl name='sched_trace_cfs_rq_cpu' mangled-name='sched_trace_cfs_rq_cpu' filepath='kernel/sched/fair.c' line='11551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_cpu'>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11551' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sched_trace_cfs_rq_path' mangled-name='sched_trace_cfs_rq_path' filepath='kernel/sched/fair.c' line='11537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_path'>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11537' column='1'/>
+        <parameter type-id='26a90f95' name='str' filepath='kernel/sched/fair.c' line='11537' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='kernel/sched/fair.c' line='11537' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='sched_trace_rd_span' mangled-name='sched_trace_rd_span' filepath='kernel/sched/fair.c' line='11605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rd_span'>
+        <parameter type-id='c13bca88' name='rd' filepath='kernel/sched/fair.c' line='11605' column='1'/>
+        <return type-id='5f8a1ac4'/>
+      </function-decl>
+      <function-decl name='sched_trace_rq_avg_dl' mangled-name='sched_trace_rq_avg_dl' filepath='kernel/sched/fair.c' line='11567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_dl'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11567' column='1'/>
+        <return type-id='847e6fee'/>
+      </function-decl>
+      <function-decl name='sched_trace_rq_avg_irq' mangled-name='sched_trace_rq_avg_irq' filepath='kernel/sched/fair.c' line='11577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_irq'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11577' column='1'/>
+        <return type-id='847e6fee'/>
+      </function-decl>
+      <function-decl name='sched_trace_rq_avg_rt' mangled-name='sched_trace_rq_avg_rt' filepath='kernel/sched/fair.c' line='11557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_rt'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11557' column='1'/>
+        <return type-id='847e6fee'/>
+      </function-decl>
+      <function-decl name='sched_trace_rq_cpu' mangled-name='sched_trace_rq_cpu' filepath='kernel/sched/fair.c' line='11587' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_cpu'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11587' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='sched_uclamp_used' type-id='237c0d27' mangled-name='sched_uclamp_used' visibility='default' filepath='kernel/sched/core.c' line='966' column='1' elf-symbol-id='sched_uclamp_used'/>
+      <function-decl name='schedule' mangled-name='schedule' filepath='include/linux/sched.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='schedule_timeout' mangled-name='schedule_timeout' filepath='include/linux/sched.h' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout'>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='schedule_timeout_interruptible' mangled-name='schedule_timeout_interruptible' filepath='include/linux/sched.h' line='222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout_interruptible'>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='schedule_timeout_uninterruptible' mangled-name='schedule_timeout_uninterruptible' filepath='include/linux/sched.h' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout_uninterruptible'>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='scnprintf' mangled-name='scnprintf' filepath='include/linux/kernel.h' line='483' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scnprintf'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_add_host_with_dma' mangled-name='scsi_add_host_with_dma' filepath='drivers/scsi/hosts.c' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_add_host_with_dma'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/hosts.c' line='208' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/hosts.c' line='208' column='1'/>
+        <parameter type-id='fa0b179b' name='dma_dev' filepath='drivers/scsi/hosts.c' line='209' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_autopm_get_device' mangled-name='scsi_autopm_get_device' filepath='include/scsi/scsi_device.h' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_autopm_get_device'>
+        <parameter type-id='eb572b74'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_autopm_put_device' mangled-name='scsi_autopm_put_device' filepath='drivers/scsi/scsi_pm.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_autopm_put_device'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi_pm.c' line='229' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_block_requests' mangled-name='scsi_block_requests' filepath='drivers/scsi/scsi_lib.c' line='1973' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_block_requests'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/scsi_lib.c' line='1973' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_block_when_processing_errors' mangled-name='scsi_block_when_processing_errors' filepath='include/scsi/scsi_eh.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_block_when_processing_errors'>
+        <parameter type-id='eb572b74'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_build_sense_buffer' mangled-name='scsi_build_sense_buffer' filepath='drivers/scsi/scsi_common.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_build_sense_buffer'>
+        <parameter type-id='95e97e5e' name='desc' filepath='drivers/scsi/scsi_common.c' line='232' column='1'/>
+        <parameter type-id='8bff8096' name='buf' filepath='drivers/scsi/scsi_common.c' line='232' column='1'/>
+        <parameter type-id='f9b06939' name='key' filepath='drivers/scsi/scsi_common.c' line='232' column='1'/>
+        <parameter type-id='f9b06939' name='asc' filepath='drivers/scsi/scsi_common.c' line='232' column='1'/>
+        <parameter type-id='f9b06939' name='ascq' filepath='drivers/scsi/scsi_common.c' line='232' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_change_queue_depth' mangled-name='scsi_change_queue_depth' filepath='drivers/scsi/scsi.c' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_change_queue_depth'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi.c' line='215' column='1'/>
+        <parameter type-id='95e97e5e' name='depth' filepath='drivers/scsi/scsi.c' line='215' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='scsi_command_size_tbl' type-id='561570b5' mangled-name='scsi_command_size_tbl' visibility='default' filepath='block/scsi_ioctl.c' line='33' column='1' elf-symbol-id='scsi_command_size_tbl'/>
+      <function-decl name='scsi_compat_ioctl' mangled-name='scsi_compat_ioctl' filepath='drivers/scsi/scsi_ioctl.c' line='288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_compat_ioctl'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi_ioctl.c' line='288' column='1'/>
+        <parameter type-id='95e97e5e' name='cmd' filepath='drivers/scsi/scsi_ioctl.c' line='288' column='1'/>
+        <parameter type-id='eaa32e2f' name='arg' filepath='drivers/scsi/scsi_ioctl.c' line='288' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_device_get' mangled-name='scsi_device_get' filepath='drivers/scsi/scsi.c' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_device_get'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi.c' line='512' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_device_put' mangled-name='scsi_device_put' filepath='drivers/scsi/scsi.c' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_device_put'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi.c' line='537' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_host_alloc' mangled-name='scsi_host_alloc' filepath='drivers/scsi/hosts.c' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_host_alloc'>
+        <parameter type-id='36265581' name='sht' filepath='drivers/scsi/hosts.c' line='377' column='1'/>
+        <parameter type-id='95e97e5e' name='privsize' filepath='drivers/scsi/hosts.c' line='377' column='1'/>
+        <return type-id='a970a64c'/>
+      </function-decl>
+      <function-decl name='scsi_host_put' mangled-name='scsi_host_put' filepath='drivers/scsi/hosts.c' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_host_put'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/hosts.c' line='602' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_ioctl' mangled-name='scsi_ioctl' filepath='drivers/scsi/scsi_ioctl.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_ioctl'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi_ioctl.c' line='273' column='1'/>
+        <parameter type-id='95e97e5e' name='cmd' filepath='drivers/scsi/scsi_ioctl.c' line='273' column='1'/>
+        <parameter type-id='eaa32e2f' name='arg' filepath='drivers/scsi/scsi_ioctl.c' line='273' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_ioctl_block_when_processing_errors' mangled-name='scsi_ioctl_block_when_processing_errors' filepath='drivers/scsi/scsi_ioctl.c' line='306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_ioctl_block_when_processing_errors'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi_ioctl.c' line='306' column='1'/>
+        <parameter type-id='95e97e5e' name='cmd' filepath='drivers/scsi/scsi_ioctl.c' line='306' column='1'/>
+        <parameter type-id='b50a4934' name='ndelay' filepath='drivers/scsi/scsi_ioctl.c' line='307' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_normalize_sense' mangled-name='scsi_normalize_sense' filepath='include/scsi/scsi_common.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_normalize_sense'>
+        <parameter type-id='bbaf3419'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='991b8213'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='scsi_register_interface' mangled-name='scsi_register_interface' filepath='drivers/scsi/scsi_sysfs.c' line='1582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_register_interface'>
+        <parameter type-id='ec167ceb' name='intf' filepath='drivers/scsi/scsi_sysfs.c' line='1582' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_remove_host' mangled-name='scsi_remove_host' filepath='drivers/scsi/hosts.c' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_remove_host'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/hosts.c' line='164' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_scan_host' mangled-name='scsi_scan_host' filepath='drivers/scsi/scsi_scan.c' line='1856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_scan_host'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/scsi_scan.c' line='1856' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='scsi_set_sense_information' mangled-name='scsi_set_sense_information' filepath='drivers/scsi/scsi_common.c' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_set_sense_information'>
+        <parameter type-id='8bff8096' name='buf' filepath='drivers/scsi/scsi_common.c' line='260' column='1'/>
+        <parameter type-id='95e97e5e' name='buf_len' filepath='drivers/scsi/scsi_common.c' line='260' column='1'/>
+        <parameter type-id='91ce1af9' name='info' filepath='drivers/scsi/scsi_common.c' line='260' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='scsi_unblock_requests' mangled-name='scsi_unblock_requests' filepath='drivers/scsi/scsi_lib.c' line='1989' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_unblock_requests'>
+        <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/scsi_lib.c' line='1989' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdev_prefix_printk' mangled-name='sdev_prefix_printk' filepath='include/scsi/scsi_device.h' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdev_prefix_printk'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='0f176ec1'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_add_host' mangled-name='sdhci_add_host' filepath='drivers/mmc/host/sdhci.c' line='4772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_add_host'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='4772' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdhci_cleanup_host' mangled-name='sdhci_cleanup_host' filepath='drivers/mmc/host/sdhci.c' line='4683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_cleanup_host'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='4683' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_cqe_disable' mangled-name='sdhci_cqe_disable' filepath='drivers/mmc/host/sdhci.c' line='3862' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_cqe_disable'>
+        <parameter type-id='dd575c43' name='mmc' filepath='drivers/mmc/host/sdhci.c' line='3862' column='1'/>
+        <parameter type-id='b50a4934' name='recovery' filepath='drivers/mmc/host/sdhci.c' line='3862' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_cqe_enable' mangled-name='sdhci_cqe_enable' filepath='drivers/mmc/host/sdhci.c' line='3818' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_cqe_enable'>
+        <parameter type-id='dd575c43' name='mmc' filepath='drivers/mmc/host/sdhci.c' line='3818' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_cqe_irq' mangled-name='sdhci_cqe_irq' filepath='drivers/mmc/host/sdhci.c' line='3886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_cqe_irq'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='3886' column='1'/>
+        <parameter type-id='19c2251e' name='intmask' filepath='drivers/mmc/host/sdhci.c' line='3886' column='1'/>
+        <parameter type-id='7292109c' name='cmd_error' filepath='drivers/mmc/host/sdhci.c' line='3886' column='1'/>
+        <parameter type-id='7292109c' name='data_error' filepath='drivers/mmc/host/sdhci.c' line='3887' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='sdhci_enable_clk' mangled-name='sdhci_enable_clk' filepath='drivers/mmc/host/sdhci.c' line='1955' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_enable_clk'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='1955' column='1'/>
+        <parameter type-id='1dc6a898' name='clk' filepath='drivers/mmc/host/sdhci.c' line='1955' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_get_property' mangled-name='sdhci_get_property' filepath='drivers/mmc/host/sdhci-pltfm.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_get_property'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/mmc/host/sdhci-pltfm.c' line='79' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_pltfm_free' mangled-name='sdhci_pltfm_free' filepath='drivers/mmc/host/sdhci-pltfm.c' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_pltfm_free'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/mmc/host/sdhci-pltfm.c' line='165' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_pltfm_init' mangled-name='sdhci_pltfm_init' filepath='drivers/mmc/host/sdhci-pltfm.c' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_pltfm_init'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/mmc/host/sdhci-pltfm.c' line='116' column='1'/>
+        <parameter type-id='168dc242' name='pdata' filepath='drivers/mmc/host/sdhci-pltfm.c' line='117' column='1'/>
+        <parameter type-id='b59d7dce' name='priv_size' filepath='drivers/mmc/host/sdhci-pltfm.c' line='118' column='1'/>
+        <return type-id='2661e0d9'/>
+      </function-decl>
+      <function-decl name='sdhci_remove_host' mangled-name='sdhci_remove_host' filepath='drivers/mmc/host/sdhci.c' line='4793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_remove_host'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='4793' column='1'/>
+        <parameter type-id='95e97e5e' name='dead' filepath='drivers/mmc/host/sdhci.c' line='4793' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_reset' mangled-name='sdhci_reset' filepath='drivers/mmc/host/sdhci.c' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_reset'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='204' column='1'/>
+        <parameter type-id='f9b06939' name='mask' filepath='drivers/mmc/host/sdhci.c' line='204' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_set_bus_width' mangled-name='sdhci_set_bus_width' filepath='drivers/mmc/host/sdhci.c' line='2217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_set_bus_width'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='2217' column='1'/>
+        <parameter type-id='95e97e5e' name='width' filepath='drivers/mmc/host/sdhci.c' line='2217' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_set_power_noreg' mangled-name='sdhci_set_power_noreg' filepath='drivers/mmc/host/sdhci.c' line='2036' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_set_power_noreg'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='2036' column='1'/>
+        <parameter type-id='002ac4a6' name='mode' filepath='drivers/mmc/host/sdhci.c' line='2036' column='1'/>
+        <parameter type-id='8efea9e5' name='vdd' filepath='drivers/mmc/host/sdhci.c' line='2037' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdhci_setup_host' mangled-name='sdhci_setup_host' filepath='drivers/mmc/host/sdhci.c' line='4134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdhci_setup_host'>
+        <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='4134' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_claim_host' mangled-name='sdio_claim_host' filepath='include/linux/mmc/sdio_func.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_claim_host'>
+        <parameter type-id='c1880945'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdio_disable_func' mangled-name='sdio_disable_func' filepath='include/linux/mmc/sdio_func.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_disable_func'>
+        <parameter type-id='c1880945'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_enable_func' mangled-name='sdio_enable_func' filepath='include/linux/mmc/sdio_func.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_enable_func'>
+        <parameter type-id='c1880945'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_f0_readb' mangled-name='sdio_f0_readb' filepath='drivers/mmc/core/sdio_io.c' line='631' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_f0_readb'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='631' column='1'/>
+        <parameter type-id='f0981eeb' name='addr' filepath='drivers/mmc/core/sdio_io.c' line='631' column='1'/>
+        <parameter type-id='7292109c' name='err_ret' filepath='drivers/mmc/core/sdio_io.c' line='632' column='1'/>
+        <return type-id='002ac4a6'/>
+      </function-decl>
+      <function-decl name='sdio_f0_writeb' mangled-name='sdio_f0_writeb' filepath='drivers/mmc/core/sdio_io.c' line='667' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_f0_writeb'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='667' column='1'/>
+        <parameter type-id='002ac4a6' name='b' filepath='drivers/mmc/core/sdio_io.c' line='667' column='1'/>
+        <parameter type-id='f0981eeb' name='addr' filepath='drivers/mmc/core/sdio_io.c' line='667' column='1'/>
+        <parameter type-id='7292109c' name='err_ret' filepath='drivers/mmc/core/sdio_io.c' line='668' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdio_get_host_pm_caps' mangled-name='sdio_get_host_pm_caps' filepath='drivers/mmc/core/sdio_io.c' line='700' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_get_host_pm_caps'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='700' column='1'/>
+        <return type-id='208a5a8d'/>
+      </function-decl>
+      <function-decl name='sdio_memcpy_fromio' mangled-name='sdio_memcpy_fromio' filepath='drivers/mmc/core/sdio_io.c' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_memcpy_fromio'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='468' column='1'/>
+        <parameter type-id='eaa32e2f' name='dst' filepath='drivers/mmc/core/sdio_io.c' line='468' column='1'/>
+        <parameter type-id='f0981eeb' name='addr' filepath='drivers/mmc/core/sdio_io.c' line='469' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/mmc/core/sdio_io.c' line='469' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_memcpy_toio' mangled-name='sdio_memcpy_toio' filepath='drivers/mmc/core/sdio_io.c' line='485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_memcpy_toio'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='485' column='1'/>
+        <parameter type-id='f0981eeb' name='addr' filepath='drivers/mmc/core/sdio_io.c' line='485' column='1'/>
+        <parameter type-id='eaa32e2f' name='src' filepath='drivers/mmc/core/sdio_io.c' line='486' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/mmc/core/sdio_io.c' line='486' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_readsb' mangled-name='sdio_readsb' filepath='drivers/mmc/core/sdio_io.c' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_readsb'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='502' column='1'/>
+        <parameter type-id='eaa32e2f' name='dst' filepath='drivers/mmc/core/sdio_io.c' line='502' column='1'/>
+        <parameter type-id='f0981eeb' name='addr' filepath='drivers/mmc/core/sdio_io.c' line='502' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/mmc/core/sdio_io.c' line='503' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_register_driver' mangled-name='sdio_register_driver' filepath='include/linux/mmc/sdio_func.h' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_register_driver'>
+        <parameter type-id='710bea3d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_release_host' mangled-name='sdio_release_host' filepath='include/linux/mmc/sdio_func.h' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_release_host'>
+        <parameter type-id='c1880945'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdio_set_block_size' mangled-name='sdio_set_block_size' filepath='include/linux/mmc/sdio_func.h' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_set_block_size'>
+        <parameter type-id='c1880945'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_set_host_pm_flags' mangled-name='sdio_set_host_pm_flags' filepath='drivers/mmc/core/sdio_io.c' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_set_host_pm_flags'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='722' column='1'/>
+        <parameter type-id='208a5a8d' name='flags' filepath='drivers/mmc/core/sdio_io.c' line='722' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sdio_signal_irq' mangled-name='sdio_signal_irq' filepath='drivers/mmc/core/sdio_irq.c' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_signal_irq'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/sdio_irq.c' line='132' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdio_unregister_driver' mangled-name='sdio_unregister_driver' filepath='drivers/mmc/core/sdio_bus.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_unregister_driver'>
+        <parameter type-id='710bea3d' name='drv' filepath='drivers/mmc/core/sdio_bus.c' line='284' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sdio_writesb' mangled-name='sdio_writesb' filepath='drivers/mmc/core/sdio_io.c' line='519' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_writesb'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='519' column='1'/>
+        <parameter type-id='f0981eeb' name='addr' filepath='drivers/mmc/core/sdio_io.c' line='519' column='1'/>
+        <parameter type-id='eaa32e2f' name='src' filepath='drivers/mmc/core/sdio_io.c' line='519' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/mmc/core/sdio_io.c' line='520' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='securityfs_create_dir' mangled-name='securityfs_create_dir' filepath='security/inode.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_create_dir'>
+        <parameter type-id='80f4b756' name='name' filepath='security/inode.c' line='228' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='security/inode.c' line='228' column='1'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='securityfs_create_file' mangled-name='securityfs_create_file' filepath='security/inode.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_create_file'>
+        <parameter type-id='80f4b756' name='name' filepath='security/inode.c' line='200' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='security/inode.c' line='200' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='security/inode.c' line='201' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='security/inode.c' line='201' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='security/inode.c' line='202' column='1'/>
+        <return type-id='27675065'/>
+      </function-decl>
+      <function-decl name='securityfs_remove' mangled-name='securityfs_remove' filepath='security/inode.c' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_remove'>
+        <parameter type-id='27675065' name='dentry' filepath='security/inode.c' line='295' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='send_sig_info' mangled-name='send_sig_info' filepath='include/linux/sched/signal.h' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='send_sig_info'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='0effb5d0'/>
+        <parameter type-id='f23e2572'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='seq_hex_dump' mangled-name='seq_hex_dump' filepath='fs/seq_file.c' line='852' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_hex_dump'>
+        <parameter type-id='f8dc9def' name='m' filepath='fs/seq_file.c' line='852' column='1'/>
+        <parameter type-id='80f4b756' name='prefix_str' filepath='fs/seq_file.c' line='852' column='1'/>
+        <parameter type-id='95e97e5e' name='prefix_type' filepath='fs/seq_file.c' line='852' column='1'/>
+        <parameter type-id='95e97e5e' name='rowsize' filepath='fs/seq_file.c' line='853' column='1'/>
+        <parameter type-id='95e97e5e' name='groupsize' filepath='fs/seq_file.c' line='853' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='fs/seq_file.c' line='853' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='fs/seq_file.c' line='853' column='1'/>
+        <parameter type-id='b50a4934' name='ascii' filepath='fs/seq_file.c' line='854' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='seq_lseek' mangled-name='seq_lseek' filepath='include/linux/seq_file.h' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_lseek'>
+        <parameter type-id='77e79a4b'/>
+        <parameter type-id='69bf7bee'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='69bf7bee'/>
+      </function-decl>
+      <function-decl name='seq_open' mangled-name='seq_open' filepath='include/linux/seq_file.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_open'>
+        <parameter type-id='77e79a4b'/>
+        <parameter type-id='943a1b48'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='seq_printf' mangled-name='seq_printf' filepath='include/linux/seq_file.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_printf'>
+        <parameter type-id='f8dc9def'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='seq_putc' mangled-name='seq_putc' filepath='include/linux/seq_file.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_putc'>
+        <parameter type-id='f8dc9def'/>
+        <parameter type-id='a84c031d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='seq_puts' mangled-name='seq_puts' filepath='include/linux/seq_file.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_puts'>
+        <parameter type-id='f8dc9def'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='seq_read' mangled-name='seq_read' filepath='fs/seq_file.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_read'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='151' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/seq_file.c' line='151' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='fs/seq_file.c' line='151' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/seq_file.c' line='151' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='seq_release' mangled-name='seq_release' filepath='include/linux/seq_file.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_release'>
+        <parameter type-id='7e666abe'/>
+        <parameter type-id='77e79a4b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='seq_release_private' mangled-name='seq_release_private' filepath='include/linux/seq_file.h' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_release_private'>
+        <parameter type-id='7e666abe'/>
+        <parameter type-id='77e79a4b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='seq_vprintf' mangled-name='seq_vprintf' filepath='include/linux/seq_file.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_vprintf'>
+        <parameter type-id='f8dc9def'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2aee9912'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='seq_write' mangled-name='seq_write' filepath='include/linux/seq_file.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_write'>
+        <parameter type-id='f8dc9def'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='serdev_device_close' mangled-name='serdev_device_close' filepath='drivers/tty/serdev/core.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_close'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='197' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serdev_device_open' mangled-name='serdev_device_open' filepath='drivers/tty/serdev/core.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_open'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='169' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='serdev_device_set_baudrate' mangled-name='serdev_device_set_baudrate' filepath='drivers/tty/serdev/core.c' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_set_baudrate'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='362' column='1'/>
+        <parameter type-id='f0981eeb' name='speed' filepath='drivers/tty/serdev/core.c' line='362' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='serdev_device_set_flow_control' mangled-name='serdev_device_set_flow_control' filepath='drivers/tty/serdev/core.c' line='374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_set_flow_control'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='374' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/tty/serdev/core.c' line='374' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serdev_device_wait_until_sent' mangled-name='serdev_device_wait_until_sent' filepath='drivers/tty/serdev/core.c' line='397' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_wait_until_sent'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='397' column='1'/>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='drivers/tty/serdev/core.c' line='397' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serdev_device_write' mangled-name='serdev_device_write' filepath='drivers/tty/serdev/core.c' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_write'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='292' column='1'/>
+        <parameter type-id='354f7eb9' name='buf' filepath='drivers/tty/serdev/core.c' line='293' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='drivers/tty/serdev/core.c' line='293' column='1'/>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='drivers/tty/serdev/core.c' line='294' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='serdev_device_write_wakeup' mangled-name='serdev_device_write_wakeup' filepath='drivers/tty/serdev/core.c' line='237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_write_wakeup'>
+        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='237' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serio_close' mangled-name='serio_close' filepath='drivers/input/serio/serio.c' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_close'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='984' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serio_interrupt' mangled-name='serio_interrupt' filepath='drivers/input/serio/serio.c' line='993' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_interrupt'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='993' column='1'/>
+        <parameter type-id='002ac4a6' name='data' filepath='drivers/input/serio/serio.c' line='994' column='1'/>
+        <parameter type-id='f0981eeb' name='dfl' filepath='drivers/input/serio/serio.c' line='994' column='1'/>
+        <return type-id='4bdecfd7'/>
+      </function-decl>
+      <function-decl name='serio_open' mangled-name='serio_open' filepath='drivers/input/serio/serio.c' line='971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_open'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='971' column='1'/>
+        <parameter type-id='1065554a' name='drv' filepath='drivers/input/serio/serio.c' line='971' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='serio_reconnect' mangled-name='serio_reconnect' filepath='drivers/input/serio/serio.c' line='685' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_reconnect'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='685' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serio_rescan' mangled-name='serio_rescan' filepath='drivers/input/serio/serio.c' line='679' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_rescan'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='679' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serio_unregister_child_port' mangled-name='serio_unregister_child_port' filepath='drivers/input/serio/serio.c' line='717' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_unregister_child_port'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='717' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serio_unregister_driver' mangled-name='serio_unregister_driver' filepath='drivers/input/serio/serio.c' line='853' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_unregister_driver'>
+        <parameter type-id='1065554a' name='drv' filepath='drivers/input/serio/serio.c' line='853' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='serio_unregister_port' mangled-name='serio_unregister_port' filepath='drivers/input/serio/serio.c' line='705' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_unregister_port'>
+        <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='705' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='set_blocksize' mangled-name='set_blocksize' filepath='include/linux/blkdev.h' line='2023' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_blocksize'>
+        <parameter type-id='b88dd945'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='set_capacity_revalidate_and_notify' mangled-name='set_capacity_revalidate_and_notify' filepath='block/genhd.c' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_capacity_revalidate_and_notify'>
+        <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='52' column='1'/>
+        <parameter type-id='a42536cd' name='size' filepath='block/genhd.c' line='52' column='1'/>
+        <parameter type-id='b50a4934' name='update_bdev' filepath='block/genhd.c' line='53' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='set_cpus_allowed_ptr' mangled-name='set_cpus_allowed_ptr' filepath='include/linux/sched.h' line='1705' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_cpus_allowed_ptr'>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='5f8a1ac4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='set_disk_ro' mangled-name='set_disk_ro' filepath='block/genhd.c' line='1857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_disk_ro'>
+        <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='1857' column='1'/>
+        <parameter type-id='95e97e5e' name='flag' filepath='block/genhd.c' line='1857' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='set_freezable' mangled-name='set_freezable' filepath='include/linux/freezer.h' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_freezable'>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='set_normalized_timespec64' mangled-name='set_normalized_timespec64' filepath='include/linux/time64.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_normalized_timespec64'>
+        <parameter type-id='4151733d'/>
+        <parameter type-id='1afd27ac'/>
+        <parameter type-id='9b7c55ef'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='set_page_dirty' mangled-name='set_page_dirty' filepath='include/linux/mm.h' line='1968' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty'>
+        <parameter type-id='02f11ed4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='set_page_dirty_lock' mangled-name='set_page_dirty_lock' filepath='include/linux/mm.h' line='1969' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty_lock'>
+        <parameter type-id='02f11ed4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='set_user_nice' mangled-name='set_user_nice' filepath='include/linux/sched.h' line='1720' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_user_nice'>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sg_alloc_table' mangled-name='sg_alloc_table' filepath='include/linux/scatterlist.h' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_alloc_table'>
+        <parameter type-id='4adb0e6a'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sg_alloc_table_from_pages' mangled-name='sg_alloc_table_from_pages' filepath='lib/scatterlist.c' line='545' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_alloc_table_from_pages'>
+        <parameter type-id='4adb0e6a' name='sgt' filepath='lib/scatterlist.c' line='545' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='lib/scatterlist.c' line='545' column='1'/>
+        <parameter type-id='f0981eeb' name='n_pages' filepath='lib/scatterlist.c' line='546' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='lib/scatterlist.c' line='546' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='lib/scatterlist.c' line='547' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='lib/scatterlist.c' line='547' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sg_copy_buffer' mangled-name='sg_copy_buffer' filepath='lib/scatterlist.c' line='921' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_buffer'>
+        <parameter type-id='bf3ef905' name='sgl' filepath='lib/scatterlist.c' line='921' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='921' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/scatterlist.c' line='921' column='1'/>
+        <parameter type-id='b59d7dce' name='buflen' filepath='lib/scatterlist.c' line='922' column='1'/>
+        <parameter type-id='ad707ada' name='skip' filepath='lib/scatterlist.c' line='922' column='1'/>
+        <parameter type-id='b50a4934' name='to_buffer' filepath='lib/scatterlist.c' line='922' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='sg_copy_from_buffer' mangled-name='sg_copy_from_buffer' filepath='include/linux/scatterlist.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_from_buffer'>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='sg_copy_to_buffer' mangled-name='sg_copy_to_buffer' filepath='include/linux/scatterlist.h' line='319' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_to_buffer'>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='sg_free_table' mangled-name='sg_free_table' filepath='lib/scatterlist.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_free_table'>
+        <parameter type-id='4adb0e6a' name='table' filepath='lib/scatterlist.c' line='239' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sg_init_one' mangled-name='sg_init_one' filepath='include/linux/scatterlist.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_init_one'>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sg_init_table' mangled-name='sg_init_table' filepath='include/linux/scatterlist.h' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_init_table'>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sg_miter_next' mangled-name='sg_miter_next' filepath='include/linux/scatterlist.h' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_next'>
+        <parameter type-id='a462f2f9'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='sg_miter_start' mangled-name='sg_miter_start' filepath='include/linux/scatterlist.h' line='511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_start'>
+        <parameter type-id='a462f2f9'/>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sg_miter_stop' mangled-name='sg_miter_stop' filepath='include/linux/scatterlist.h' line='515' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_stop'>
+        <parameter type-id='a462f2f9'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sg_next' mangled-name='sg_next' filepath='include/linux/scatterlist.h' line='275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_next'>
+        <parameter type-id='bf3ef905'/>
+        <return type-id='bf3ef905'/>
+      </function-decl>
+      <function-decl name='sg_pcopy_from_buffer' mangled-name='sg_pcopy_from_buffer' filepath='lib/scatterlist.c' line='1002' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_pcopy_from_buffer'>
+        <parameter type-id='bf3ef905' name='sgl' filepath='lib/scatterlist.c' line='1002' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='1002' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/scatterlist.c' line='1003' column='1'/>
+        <parameter type-id='b59d7dce' name='buflen' filepath='lib/scatterlist.c' line='1003' column='1'/>
+        <parameter type-id='ad707ada' name='skip' filepath='lib/scatterlist.c' line='1003' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='sg_scsi_ioctl' mangled-name='sg_scsi_ioctl' filepath='block/scsi_ioctl.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_scsi_ioctl'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/scsi_ioctl.c' line='407' column='1'/>
+        <parameter type-id='33c599da' name='disk' filepath='block/scsi_ioctl.c' line='407' column='1'/>
+        <parameter type-id='2665334e' name='mode' filepath='block/scsi_ioctl.c' line='407' column='1'/>
+        <parameter type-id='2926d4f3' name='sic' filepath='block/scsi_ioctl.c' line='408' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='shash_free_singlespawn_instance' mangled-name='shash_free_singlespawn_instance' filepath='crypto/shash.c' line='619' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='shash_free_singlespawn_instance'>
+        <parameter type-id='9414c4b6' name='inst' filepath='crypto/shash.c' line='619' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='shash_register_instance' mangled-name='shash_register_instance' filepath='crypto/shash.c' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='shash_register_instance'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/shash.c' line='603' column='1'/>
+        <parameter type-id='9414c4b6' name='inst' filepath='crypto/shash.c' line='604' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='shmem_file_setup' mangled-name='shmem_file_setup' filepath='mm/shmem.c' line='4209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='shmem_file_setup'>
+        <parameter type-id='80f4b756' name='name' filepath='mm/shmem.c' line='4209' column='1'/>
+        <parameter type-id='69bf7bee' name='size' filepath='mm/shmem.c' line='4209' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='mm/shmem.c' line='4209' column='1'/>
+        <return type-id='77e79a4b'/>
+      </function-decl>
+      <function-decl name='shmem_truncate_range' mangled-name='shmem_truncate_range' filepath='mm/shmem.c' line='1067' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='shmem_truncate_range'>
+        <parameter type-id='7e666abe' name='inode' filepath='mm/shmem.c' line='1067' column='1'/>
+        <parameter type-id='69bf7bee' name='lstart' filepath='mm/shmem.c' line='1067' column='1'/>
+        <parameter type-id='69bf7bee' name='lend' filepath='mm/shmem.c' line='1067' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='simple_attr_open' mangled-name='simple_attr_open' filepath='include/linux/fs.h' line='3416' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_open'>
+        <parameter type-id='7e666abe'/>
+        <parameter type-id='77e79a4b'/>
+        <parameter type-id='dffc7428'/>
+        <parameter type-id='0fb09eeb'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='simple_attr_read' mangled-name='simple_attr_read' filepath='fs/libfs.c' line='920' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_read'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/libfs.c' line='920' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/libfs.c' line='920' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='fs/libfs.c' line='921' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/libfs.c' line='921' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='simple_attr_release' mangled-name='simple_attr_release' filepath='fs/libfs.c' line='912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_release'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/libfs.c' line='912' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/libfs.c' line='912' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='simple_attr_write' mangled-name='simple_attr_write' filepath='fs/libfs.c' line='958' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_write'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/libfs.c' line='958' column='1'/>
+        <parameter type-id='80f4b756' name='buf' filepath='fs/libfs.c' line='958' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='fs/libfs.c' line='959' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/libfs.c' line='959' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <var-decl name='simple_dir_inode_operations' type-id='c8e0fb8e' mangled-name='simple_dir_inode_operations' visibility='default' filepath='fs/libfs.c' line='240' column='1' elf-symbol-id='simple_dir_inode_operations'/>
+      <var-decl name='simple_dir_operations' type-id='b8ae588d' mangled-name='simple_dir_operations' visibility='default' filepath='fs/libfs.c' line='230' column='1' elf-symbol-id='simple_dir_operations'/>
+      <function-decl name='simple_open' mangled-name='simple_open' filepath='fs/libfs.c' line='385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_open'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/libfs.c' line='385' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/libfs.c' line='385' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='simple_read_from_buffer' mangled-name='simple_read_from_buffer' filepath='include/linux/fs.h' line='3251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_read_from_buffer'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='b53e8dbb'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='simple_statfs' mangled-name='simple_statfs' filepath='fs/libfs.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_statfs'>
+        <parameter type-id='27675065' name='dentry' filepath='fs/libfs.c' line='40' column='1'/>
+        <parameter type-id='087d687b' name='buf' filepath='fs/libfs.c' line='40' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='simple_strtol' mangled-name='simple_strtol' filepath='include/linux/kernel.h' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtol'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='9b23c9ad'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='simple_strtoll' mangled-name='simple_strtoll' filepath='lib/vsprintf.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtoll'>
+        <parameter type-id='80f4b756' name='cp' filepath='lib/vsprintf.c' line='149' column='1'/>
+        <parameter type-id='9b23c9ad' name='endp' filepath='lib/vsprintf.c' line='149' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/vsprintf.c' line='149' column='1'/>
+        <return type-id='1eb56b1e'/>
+      </function-decl>
+      <function-decl name='simple_strtoul' mangled-name='simple_strtoul' filepath='include/linux/kernel.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtoul'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='9b23c9ad'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='simple_strtoull' mangled-name='simple_strtoull' filepath='include/linux/kernel.h' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtoull'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='9b23c9ad'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='0d77e947'/>
+      </function-decl>
+      <function-decl name='simple_write_to_buffer' mangled-name='simple_write_to_buffer' filepath='fs/libfs.c' line='752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_write_to_buffer'>
+        <parameter type-id='eaa32e2f' name='to' filepath='fs/libfs.c' line='752' column='1'/>
+        <parameter type-id='b59d7dce' name='available' filepath='fs/libfs.c' line='752' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/libfs.c' line='752' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='fs/libfs.c' line='753' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='fs/libfs.c' line='753' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='single_open' mangled-name='single_open' filepath='include/linux/seq_file.h' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_open'>
+        <parameter type-id='77e79a4b'/>
+        <parameter type-id='0131eb61'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='single_open_size' mangled-name='single_open_size' filepath='fs/seq_file.c' line='582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_open_size'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='582' column='1'/>
+        <parameter type-id='0131eb61' name='show' filepath='fs/seq_file.c' line='582' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/seq_file.c' line='583' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='fs/seq_file.c' line='583' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='single_release' mangled-name='single_release' filepath='include/linux/seq_file.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_release'>
+        <parameter type-id='7e666abe'/>
+        <parameter type-id='77e79a4b'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sk_alloc' mangled-name='sk_alloc' filepath='include/net/sock.h' line='1666' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_alloc'>
+        <parameter type-id='a2bff676'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='3eb7c31c'/>
+        <parameter type-id='d2524501'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='f772df6d'/>
+      </function-decl>
+      <function-decl name='sk_free' mangled-name='sk_free' filepath='include/net/sock.h' line='1668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_free'>
+        <parameter type-id='f772df6d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_add_rx_frag' mangled-name='skb_add_rx_frag' filepath='include/linux/skbuff.h' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_add_rx_frag'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='02f11ed4'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_checksum' mangled-name='skb_checksum' filepath='net/core/skbuff.c' line='2729' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_checksum'>
+        <parameter type-id='11f4a000' name='skb' filepath='net/core/skbuff.c' line='2729' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='2729' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='2730' column='1'/>
+        <parameter type-id='fbd88bba' name='csum' filepath='net/core/skbuff.c' line='2730' column='1'/>
+        <return type-id='fbd88bba'/>
+      </function-decl>
+      <function-decl name='skb_clone' mangled-name='skb_clone' filepath='include/linux/skbuff.h' line='1157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_clone'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_coalesce_rx_frag' mangled-name='skb_coalesce_rx_frag' filepath='net/core/skbuff.c' line='567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_coalesce_rx_frag'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='567' column='1'/>
+        <parameter type-id='95e97e5e' name='i' filepath='net/core/skbuff.c' line='567' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='net/core/skbuff.c' line='567' column='1'/>
+        <parameter type-id='f0981eeb' name='truesize' filepath='net/core/skbuff.c' line='568' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_copy' mangled-name='skb_copy' filepath='include/linux/skbuff.h' line='1159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy'>
+        <parameter type-id='11f4a000'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_copy_bits' mangled-name='skb_copy_bits' filepath='include/linux/skbuff.h' line='3573' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_bits'>
+        <parameter type-id='11f4a000'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skb_copy_datagram_iter' mangled-name='skb_copy_datagram_iter' filepath='include/linux/skbuff.h' line='3550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_datagram_iter'>
+        <parameter type-id='11f4a000'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='4fa10f9e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skb_copy_expand' mangled-name='skb_copy_expand' filepath='include/linux/skbuff.h' line='1171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_expand'>
+        <parameter type-id='11f4a000'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_dequeue' mangled-name='skb_dequeue' filepath='include/linux/skbuff.h' line='2108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_dequeue'>
+        <parameter type-id='03c386c6'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_dequeue_tail' mangled-name='skb_dequeue_tail' filepath='net/core/skbuff.c' line='3075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_dequeue_tail'>
+        <parameter type-id='03c386c6' name='list' filepath='net/core/skbuff.c' line='3075' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_free_datagram' mangled-name='skb_free_datagram' filepath='net/core/datagram.c' line='323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_free_datagram'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/datagram.c' line='323' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/datagram.c' line='323' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_page_frag_refill' mangled-name='skb_page_frag_refill' filepath='include/linux/skbuff.h' line='3122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_page_frag_refill'>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='a8d434b7'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='skb_partial_csum_set' mangled-name='skb_partial_csum_set' filepath='include/linux/skbuff.h' line='4562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_partial_csum_set'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='1dc6a898'/>
+        <parameter type-id='1dc6a898'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='skb_pull' mangled-name='skb_pull' filepath='include/linux/skbuff.h' line='2316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_pull'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='skb_push' mangled-name='skb_push' filepath='include/linux/skbuff.h' line='2308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_push'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='skb_put' mangled-name='skb_put' filepath='include/linux/skbuff.h' line='2252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_put'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='skb_queue_head' mangled-name='skb_queue_head' filepath='include/linux/skbuff.h' line='2057' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_head'>
+        <parameter type-id='03c386c6'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_queue_purge' mangled-name='skb_queue_purge' filepath='include/linux/skbuff.h' line='2824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_purge'>
+        <parameter type-id='03c386c6'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_queue_tail' mangled-name='skb_queue_tail' filepath='include/linux/skbuff.h' line='2074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_tail'>
+        <parameter type-id='03c386c6'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_realloc_headroom' mangled-name='skb_realloc_headroom' filepath='include/linux/skbuff.h' line='1169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_realloc_headroom'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_recv_datagram' mangled-name='skb_recv_datagram' filepath='net/core/datagram.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_recv_datagram'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/datagram.c' line='312' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='net/core/datagram.c' line='312' column='1'/>
+        <parameter type-id='95e97e5e' name='noblock' filepath='net/core/datagram.c' line='313' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='net/core/datagram.c' line='313' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='skb_set_owner_w' mangled-name='skb_set_owner_w' filepath='include/net/sock.h' line='2200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_set_owner_w'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='f772df6d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_store_bits' mangled-name='skb_store_bits' filepath='net/core/skbuff.c' line='2567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_store_bits'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='2567' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='2567' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='net/core/skbuff.c' line='2567' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='2567' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skb_to_sgvec' mangled-name='skb_to_sgvec' filepath='include/linux/skbuff.h' line='1175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_to_sgvec'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='bf3ef905'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skb_trim' mangled-name='skb_trim' filepath='include/linux/skbuff.h' line='2720' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_trim'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_tstamp_tx' mangled-name='skb_tstamp_tx' filepath='net/core/skbuff.c' line='4766' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_tstamp_tx'>
+        <parameter type-id='0fbf3cfd' name='orig_skb' filepath='net/core/skbuff.c' line='4766' column='1'/>
+        <parameter type-id='68197365' name='hwtstamps' filepath='net/core/skbuff.c' line='4767' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skb_unlink' mangled-name='skb_unlink' filepath='net/core/skbuff.c' line='3181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_unlink'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='3181' column='1'/>
+        <parameter type-id='03c386c6' name='list' filepath='net/core/skbuff.c' line='3181' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='skcipher_alloc_instance_simple' mangled-name='skcipher_alloc_instance_simple' filepath='crypto/skcipher.c' line='935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_alloc_instance_simple'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/skcipher.c' line='936' column='1'/>
+        <parameter type-id='c161b868' name='tb' filepath='crypto/skcipher.c' line='936' column='1'/>
+        <return type-id='8e5a8430'/>
+      </function-decl>
+      <function-decl name='skcipher_register_instance' mangled-name='skcipher_register_instance' filepath='crypto/skcipher.c' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_register_instance'>
+        <parameter type-id='f0f856cb' name='tmpl' filepath='crypto/skcipher.c' line='864' column='1'/>
+        <parameter type-id='8e5a8430' name='inst' filepath='crypto/skcipher.c' line='865' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skcipher_walk_aead_decrypt' mangled-name='skcipher_walk_aead_decrypt' filepath='crypto/skcipher.c' line='562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_aead_decrypt'>
+        <parameter type-id='74439606' name='walk' filepath='crypto/skcipher.c' line='562' column='1'/>
+        <parameter type-id='146bc842' name='req' filepath='crypto/skcipher.c' line='563' column='1'/>
+        <parameter type-id='b50a4934' name='atomic' filepath='crypto/skcipher.c' line='563' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skcipher_walk_aead_encrypt' mangled-name='skcipher_walk_aead_encrypt' filepath='crypto/skcipher.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_aead_encrypt'>
+        <parameter type-id='74439606' name='walk' filepath='crypto/skcipher.c' line='553' column='1'/>
+        <parameter type-id='146bc842' name='req' filepath='crypto/skcipher.c' line='554' column='1'/>
+        <parameter type-id='b50a4934' name='atomic' filepath='crypto/skcipher.c' line='554' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skcipher_walk_done' mangled-name='skcipher_walk_done' filepath='include/crypto/internal/skcipher.h' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_done'>
+        <parameter type-id='74439606'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skcipher_walk_virt' mangled-name='skcipher_walk_virt' filepath='include/crypto/internal/skcipher.h' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_virt'>
+        <parameter type-id='74439606'/>
+        <parameter type-id='c249b570'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='skip_spaces' mangled-name='skip_spaces' filepath='include/linux/string.h' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skip_spaces'>
+        <parameter type-id='80f4b756'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='smp_call_function' mangled-name='smp_call_function' filepath='kernel/smp.c' line='735' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='smp_call_function'>
+        <parameter type-id='89714567' name='func' filepath='kernel/smp.c' line='735' column='1'/>
+        <parameter type-id='eaa32e2f' name='info' filepath='kernel/smp.c' line='735' column='1'/>
+        <parameter type-id='95e97e5e' name='wait' filepath='kernel/smp.c' line='735' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='smp_call_function_single' mangled-name='smp_call_function_single' filepath='include/linux/smp.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='smp_call_function_single'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='89714567'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='smp_call_on_cpu' mangled-name='smp_call_on_cpu' filepath='kernel/smp.c' line='1021' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='smp_call_on_cpu'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='kernel/smp.c' line='1021' column='1'/>
+        <parameter type-id='b9b212f5' name='func' filepath='kernel/smp.c' line='1021' column='1'/>
+        <parameter type-id='eaa32e2f' name='par' filepath='kernel/smp.c' line='1021' column='1'/>
+        <parameter type-id='b50a4934' name='phys' filepath='kernel/smp.c' line='1021' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_card_disconnect' mangled-name='snd_card_disconnect' filepath='include/sound/core.h' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_disconnect'>
+        <parameter type-id='52704eb7'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_card_free' mangled-name='snd_card_free' filepath='include/sound/core.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_free'>
+        <parameter type-id='52704eb7'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_card_new' mangled-name='snd_card_new' filepath='include/sound/core.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_new'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2730d015'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='63cbc127'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_card_register' mangled-name='snd_card_register' filepath='include/sound/core.h' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_register'>
+        <parameter type-id='52704eb7'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_card_rw_proc_new' mangled-name='snd_card_rw_proc_new' filepath='sound/core/info.c' line='873' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_rw_proc_new'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/info.c' line='873' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='sound/core/info.c' line='873' column='1'/>
+        <parameter type-id='eaa32e2f' name='private_data' filepath='sound/core/info.c' line='874' column='1'/>
+        <parameter type-id='f695e0b6' name='read' filepath='sound/core/info.c' line='875' column='1'/>
+        <parameter type-id='f695e0b6' name='write' filepath='sound/core/info.c' line='877' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_component_add' mangled-name='snd_component_add' filepath='include/sound/core.h' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_component_add'>
+        <parameter type-id='52704eb7'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_compr_stop_error' mangled-name='snd_compr_stop_error' filepath='sound/core/compress_offload.c' line='827' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_compr_stop_error'>
+        <parameter type-id='b7c1d7d5' name='stream' filepath='sound/core/compress_offload.c' line='827' column='1'/>
+        <parameter type-id='33158de9' name='state' filepath='sound/core/compress_offload.c' line='828' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_add' mangled-name='snd_ctl_add' filepath='sound/core/control.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_add'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/control.c' line='424' column='1'/>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/core/control.c' line='424' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_add_vmaster_hook' mangled-name='snd_ctl_add_vmaster_hook' filepath='sound/core/vmaster.c' line='447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_add_vmaster_hook'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/core/vmaster.c' line='447' column='1'/>
+        <parameter type-id='1ed1e4cd' name='hook' filepath='sound/core/vmaster.c' line='448' column='1'/>
+        <parameter type-id='eaa32e2f' name='private_data' filepath='sound/core/vmaster.c' line='449' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_apply_vmaster_followers' mangled-name='snd_ctl_apply_vmaster_followers' filepath='sound/core/vmaster.c' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_apply_vmaster_followers'>
+        <parameter type-id='7a5054b7' name='kctl' filepath='sound/core/vmaster.c' line='499' column='1'/>
+        <parameter type-id='be4e3fad' name='func' filepath='sound/core/vmaster.c' line='500' column='1'/>
+        <parameter type-id='eaa32e2f' name='arg' filepath='sound/core/vmaster.c' line='503' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_boolean_mono_info' mangled-name='snd_ctl_boolean_mono_info' filepath='sound/core/control.c' line='2083' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_boolean_mono_info'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/core/control.c' line='2083' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/core/control.c' line='2084' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_boolean_stereo_info' mangled-name='snd_ctl_boolean_stereo_info' filepath='sound/core/control.c' line='2103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_boolean_stereo_info'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/core/control.c' line='2103' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/core/control.c' line='2104' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_enum_info' mangled-name='snd_ctl_enum_info' filepath='sound/core/control.c' line='2127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_enum_info'>
+        <parameter type-id='0e291009' name='info' filepath='sound/core/control.c' line='2127' column='1'/>
+        <parameter type-id='f0981eeb' name='channels' filepath='sound/core/control.c' line='2127' column='1'/>
+        <parameter type-id='f0981eeb' name='items' filepath='sound/core/control.c' line='2128' column='1'/>
+        <parameter type-id='13956559' name='names' filepath='sound/core/control.c' line='2128' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_find_id' mangled-name='snd_ctl_find_id' filepath='sound/core/control.c' line='666' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_find_id'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/control.c' line='666' column='1'/>
+        <parameter type-id='eaeee79a' name='id' filepath='sound/core/control.c' line='667' column='1'/>
+        <return type-id='7a5054b7'/>
+      </function-decl>
+      <function-decl name='snd_ctl_make_virtual_master' mangled-name='snd_ctl_make_virtual_master' filepath='sound/core/vmaster.c' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_make_virtual_master'>
+        <parameter type-id='26a90f95' name='name' filepath='sound/core/vmaster.c' line='392' column='1'/>
+        <parameter type-id='5b2fd8e8' name='tlv' filepath='sound/core/vmaster.c' line='393' column='1'/>
+        <return type-id='7a5054b7'/>
+      </function-decl>
+      <function-decl name='snd_ctl_new1' mangled-name='snd_ctl_new1' filepath='include/sound/control.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_new1'>
+        <parameter type-id='31e035f7'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='7a5054b7'/>
+      </function-decl>
+      <function-decl name='snd_ctl_notify' mangled-name='snd_ctl_notify' filepath='sound/core/control.c' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_notify'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/control.c' line='142' column='1'/>
+        <parameter type-id='f0981eeb' name='mask' filepath='sound/core/control.c' line='142' column='1'/>
+        <parameter type-id='eaeee79a' name='id' filepath='sound/core/control.c' line='143' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_ctl_remove' mangled-name='snd_ctl_remove' filepath='sound/core/control.c' line='463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_remove'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/control.c' line='463' column='1'/>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/core/control.c' line='463' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_ctl_sync_vmaster' mangled-name='snd_ctl_sync_vmaster' filepath='sound/core/vmaster.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_sync_vmaster'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/core/vmaster.c' line='467' column='1'/>
+        <parameter type-id='b50a4934' name='hook_only' filepath='sound/core/vmaster.c' line='467' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_device_disconnect' mangled-name='snd_device_disconnect' filepath='sound/core/device.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_device_disconnect'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/device.c' line='106' column='1'/>
+        <parameter type-id='eaa32e2f' name='device_data' filepath='sound/core/device.c' line='106' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_device_free' mangled-name='snd_device_free' filepath='sound/core/device.c' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_device_free'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/device.c' line='130' column='1'/>
+        <parameter type-id='eaa32e2f' name='device_data' filepath='sound/core/device.c' line='130' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_device_new' mangled-name='snd_device_new' filepath='include/sound/core.h' line='271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_device_new'>
+        <parameter type-id='52704eb7'/>
+        <parameter type-id='43cb465b'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='c00b0b11'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_dma_alloc_pages' mangled-name='snd_dma_alloc_pages' filepath='include/sound/memalloc.h' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_alloc_pages'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='a02b8cd2'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_dma_free_pages' mangled-name='snd_dma_free_pages' filepath='include/sound/memalloc.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_free_pages'>
+        <parameter type-id='a02b8cd2'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_dmaengine_pcm_prepare_slave_config' mangled-name='snd_dmaengine_pcm_prepare_slave_config' filepath='sound/soc/soc-generic-dmaengine-pcm.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dmaengine_pcm_prepare_slave_config'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/soc/soc-generic-dmaengine-pcm.c' line='46' column='1'/>
+        <parameter type-id='363a995e' name='params' filepath='sound/soc/soc-generic-dmaengine-pcm.c' line='47' column='1'/>
+        <parameter type-id='4f22192a' name='slave_config' filepath='sound/soc/soc-generic-dmaengine-pcm.c' line='47' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_info_create_card_entry' mangled-name='snd_info_create_card_entry' filepath='sound/core/info.c' line='739' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_info_create_card_entry'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/info.c' line='739' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='sound/core/info.c' line='740' column='1'/>
+        <parameter type-id='b9608bfc' name='parent' filepath='sound/core/info.c' line='741' column='1'/>
+        <return type-id='b9608bfc'/>
+      </function-decl>
+      <function-decl name='snd_jack_new' mangled-name='snd_jack_new' filepath='sound/core/jack.c' line='201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_jack_new'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/jack.c' line='201' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='sound/core/jack.c' line='201' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='sound/core/jack.c' line='201' column='1'/>
+        <parameter type-id='bd753fd6' name='jjack' filepath='sound/core/jack.c' line='202' column='1'/>
+        <parameter type-id='b50a4934' name='initial_kctl' filepath='sound/core/jack.c' line='202' column='1'/>
+        <parameter type-id='b50a4934' name='phantom_jack' filepath='sound/core/jack.c' line='202' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_jack_report' mangled-name='snd_jack_report' filepath='sound/core/jack.c' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_jack_report'>
+        <parameter type-id='0f5a7eb8' name='jack' filepath='sound/core/jack.c' line='347' column='1'/>
+        <parameter type-id='95e97e5e' name='status' filepath='sound/core/jack.c' line='347' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_jack_set_key' mangled-name='snd_jack_set_key' filepath='sound/core/jack.c' line='324' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_jack_set_key'>
+        <parameter type-id='0f5a7eb8' name='jack' filepath='sound/core/jack.c' line='324' column='1'/>
+        <parameter type-id='7851d449' name='type' filepath='sound/core/jack.c' line='324' column='1'/>
+        <parameter type-id='95e97e5e' name='keytype' filepath='sound/core/jack.c' line='325' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pci_quirk_lookup' mangled-name='snd_pci_quirk_lookup' filepath='sound/core/misc.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pci_quirk_lookup'>
+        <parameter type-id='85196e3f' name='pci' filepath='sound/core/misc.c' line='138' column='1'/>
+        <parameter type-id='c55bcf2d' name='list' filepath='sound/core/misc.c' line='138' column='1'/>
+        <return type-id='c55bcf2d'/>
+      </function-decl>
+      <function-decl name='snd_pcm_add_chmap_ctls' mangled-name='snd_pcm_add_chmap_ctls' filepath='sound/core/pcm_lib.c' line='2425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_add_chmap_ctls'>
+        <parameter type-id='4c9f335b' name='pcm' filepath='sound/core/pcm_lib.c' line='2425' column='1'/>
+        <parameter type-id='95e97e5e' name='stream' filepath='sound/core/pcm_lib.c' line='2425' column='1'/>
+        <parameter type-id='ddec2084' name='chmap' filepath='sound/core/pcm_lib.c' line='2426' column='1'/>
+        <parameter type-id='95e97e5e' name='max_channels' filepath='sound/core/pcm_lib.c' line='2427' column='1'/>
+        <parameter type-id='7359adad' name='private_value' filepath='sound/core/pcm_lib.c' line='2428' column='1'/>
+        <parameter type-id='ce765417' name='info_ret' filepath='sound/core/pcm_lib.c' line='2429' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_create_iec958_consumer_hw_params' mangled-name='snd_pcm_create_iec958_consumer_hw_params' filepath='sound/core/pcm_iec958.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_create_iec958_consumer_hw_params'>
+        <parameter type-id='363a995e' name='params' filepath='sound/core/pcm_iec958.c' line='117' column='1'/>
+        <parameter type-id='8bff8096' name='cs' filepath='sound/core/pcm_iec958.c' line='118' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='sound/core/pcm_iec958.c' line='118' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_format_physical_width' mangled-name='snd_pcm_format_physical_width' filepath='include/sound/pcm.h' line='1059' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_format_physical_width'>
+        <parameter type-id='67fa9bd5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_format_width' mangled-name='snd_pcm_format_width' filepath='sound/core/pcm_misc.c' line='348' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_format_width'>
+        <parameter type-id='67fa9bd5' name='format' filepath='sound/core/pcm_misc.c' line='348' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_hw_constraint_eld' mangled-name='snd_pcm_hw_constraint_eld' filepath='sound/core/pcm_drm_eld.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_eld'>
+        <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_drm_eld.c' line='80' column='1'/>
+        <parameter type-id='eaa32e2f' name='eld' filepath='sound/core/pcm_drm_eld.c' line='80' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_hw_constraint_integer' mangled-name='snd_pcm_hw_constraint_integer' filepath='include/sound/pcm.h' line='986' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_integer'>
+        <parameter type-id='17a05af6'/>
+        <parameter type-id='6b55ba25'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_hw_constraint_list' mangled-name='snd_pcm_hw_constraint_list' filepath='sound/core/pcm_lib.c' line='1270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_list'>
+        <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1270' column='1'/>
+        <parameter type-id='f0981eeb' name='cond' filepath='sound/core/pcm_lib.c' line='1271' column='1'/>
+        <parameter type-id='6b55ba25' name='var' filepath='sound/core/pcm_lib.c' line='1272' column='1'/>
+        <parameter type-id='a5cedbd3' name='l' filepath='sound/core/pcm_lib.c' line='1273' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_hw_constraint_minmax' mangled-name='snd_pcm_hw_constraint_minmax' filepath='include/sound/pcm.h' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_minmax'>
+        <parameter type-id='17a05af6'/>
+        <parameter type-id='6b55ba25'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_hw_constraint_step' mangled-name='snd_pcm_hw_constraint_step' filepath='sound/core/pcm_lib.c' line='1443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_step'>
+        <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1443' column='1'/>
+        <parameter type-id='f0981eeb' name='cond' filepath='sound/core/pcm_lib.c' line='1444' column='1'/>
+        <parameter type-id='6b55ba25' name='var' filepath='sound/core/pcm_lib.c' line='1445' column='1'/>
+        <parameter type-id='7359adad' name='step' filepath='sound/core/pcm_lib.c' line='1446' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_hw_limit_rates' mangled-name='snd_pcm_hw_limit_rates' filepath='include/sound/pcm.h' line='1130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_limit_rates'>
+        <parameter type-id='17e4a02a'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_lib_default_mmap' mangled-name='snd_pcm_lib_default_mmap' filepath='sound/core/pcm_native.c' line='3730' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_default_mmap'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_native.c' line='3730' column='1'/>
+        <parameter type-id='2ae08426' name='area' filepath='sound/core/pcm_native.c' line='3731' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_lib_free_pages' mangled-name='snd_pcm_lib_free_pages' filepath='include/sound/pcm.h' line='1204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_free_pages'>
+        <parameter type-id='06b2cd14'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_lib_ioctl' mangled-name='snd_pcm_lib_ioctl' filepath='include/sound/pcm.h' line='1067' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_ioctl'>
+        <parameter type-id='06b2cd14'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_lib_malloc_pages' mangled-name='snd_pcm_lib_malloc_pages' filepath='include/sound/pcm.h' line='1203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_malloc_pages'>
+        <parameter type-id='06b2cd14'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_lib_preallocate_pages' mangled-name='snd_pcm_lib_preallocate_pages' filepath='sound/core/pcm_memory.c' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_preallocate_pages'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_memory.c' line='274' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='sound/core/pcm_memory.c' line='275' column='1'/>
+        <parameter type-id='fa0b179b' name='data' filepath='sound/core/pcm_memory.c' line='275' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='sound/core/pcm_memory.c' line='276' column='1'/>
+        <parameter type-id='b59d7dce' name='max' filepath='sound/core/pcm_memory.c' line='276' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_pcm_new' mangled-name='snd_pcm_new' filepath='sound/core/pcm.c' line='773' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_new'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/pcm.c' line='773' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='sound/core/pcm.c' line='773' column='1'/>
+        <parameter type-id='95e97e5e' name='device' filepath='sound/core/pcm.c' line='773' column='1'/>
+        <parameter type-id='95e97e5e' name='playback_count' filepath='sound/core/pcm.c' line='774' column='1'/>
+        <parameter type-id='95e97e5e' name='capture_count' filepath='sound/core/pcm.c' line='774' column='1'/>
+        <parameter type-id='0f9dfae3' name='rpcm' filepath='sound/core/pcm.c' line='774' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_pcm_period_elapsed' mangled-name='snd_pcm_period_elapsed' filepath='include/sound/pcm.h' line='1069' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_period_elapsed'>
+        <parameter type-id='06b2cd14'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_pcm_set_managed_buffer_all' mangled-name='snd_pcm_set_managed_buffer_all' filepath='include/sound/pcm.h' line='1208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_managed_buffer_all'>
+        <parameter type-id='4c9f335b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_pcm_set_ops' mangled-name='snd_pcm_set_ops' filepath='include/sound/pcm.h' line='1064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_ops'>
+        <parameter type-id='4c9f335b'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f63b1a17'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_pcm_set_sync' mangled-name='snd_pcm_set_sync' filepath='sound/core/pcm_lib.c' line='498' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_sync'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_lib.c' line='498' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='snd_pcm_std_chmaps' type-id='93f82aba' mangled-name='snd_pcm_std_chmaps' visibility='default' filepath='sound/core/pcm_lib.c' line='2266' column='1' elf-symbol-id='snd_pcm_std_chmaps'/>
+      <function-decl name='snd_soc_add_component_controls' mangled-name='snd_soc_add_component_controls' filepath='sound/soc/soc-core.c' line='2120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_add_component_controls'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-core.c' line='2120' column='1'/>
+        <parameter type-id='31e035f7' name='controls' filepath='sound/soc/soc-core.c' line='2121' column='1'/>
+        <parameter type-id='f0981eeb' name='num_controls' filepath='sound/soc/soc-core.c' line='2121' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_add_dai_controls' mangled-name='snd_soc_add_dai_controls' filepath='sound/soc/soc-core.c' line='2160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_add_dai_controls'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-core.c' line='2160' column='1'/>
+        <parameter type-id='31e035f7' name='controls' filepath='sound/soc/soc-core.c' line='2161' column='1'/>
+        <parameter type-id='95e97e5e' name='num_controls' filepath='sound/soc/soc-core.c' line='2161' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_bytes_tlv_callback' mangled-name='snd_soc_bytes_tlv_callback' filepath='sound/soc/soc-ops.c' line='772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_bytes_tlv_callback'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='772' column='1'/>
+        <parameter type-id='95e97e5e' name='op_flag' filepath='sound/soc/soc-ops.c' line='772' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='sound/soc/soc-ops.c' line='773' column='1'/>
+        <parameter type-id='807869d3' name='tlv' filepath='sound/soc/soc-ops.c' line='773' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_card_get_kcontrol' mangled-name='snd_soc_card_get_kcontrol' filepath='include/sound/soc-card.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_get_kcontrol'>
+        <parameter type-id='3059cd0b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='7a5054b7'/>
+      </function-decl>
+      <function-decl name='snd_soc_card_jack_new' mangled-name='snd_soc_card_jack_new' filepath='sound/soc/soc-card.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_jack_new'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-card.c' line='60' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='sound/soc/soc-card.c' line='60' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='sound/soc/soc-card.c' line='60' column='1'/>
+        <parameter type-id='12a060a4' name='jack' filepath='sound/soc/soc-card.c' line='61' column='1'/>
+        <parameter type-id='fcd78288' name='pins' filepath='sound/soc/soc-card.c' line='62' column='1'/>
+        <parameter type-id='f0981eeb' name='num_pins' filepath='sound/soc/soc-card.c' line='62' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_disable_pin' mangled-name='snd_soc_component_disable_pin' filepath='sound/soc/soc-component.c' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_disable_pin'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='156' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-component.c' line='157' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_enable_pin' mangled-name='snd_soc_component_enable_pin' filepath='sound/soc/soc-component.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_enable_pin'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='138' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-component.c' line='139' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_force_enable_pin' mangled-name='snd_soc_component_force_enable_pin' filepath='sound/soc/soc-component.c' line='201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_force_enable_pin'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='201' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-component.c' line='202' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_get_pin_status' mangled-name='snd_soc_component_get_pin_status' filepath='sound/soc/soc-component.c' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_get_pin_status'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='192' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-component.c' line='193' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_init_regmap' mangled-name='snd_soc_component_init_regmap' filepath='sound/soc/soc-component.c' line='387' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_init_regmap'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='387' column='1'/>
+        <parameter type-id='29af9a71' name='regmap' filepath='sound/soc/soc-component.c' line='388' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_read' mangled-name='snd_soc_component_read' filepath='include/sound/soc-component.h' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_read'>
+        <parameter type-id='807b7702'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_set_jack' mangled-name='snd_soc_component_set_jack' filepath='include/sound/soc-component.h' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_jack'>
+        <parameter type-id='807b7702'/>
+        <parameter type-id='12a060a4'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_set_pll' mangled-name='snd_soc_component_set_pll' filepath='include/sound/soc-component.h' line='359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_pll'>
+        <parameter type-id='807b7702'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_set_sysclk' mangled-name='snd_soc_component_set_sysclk' filepath='include/sound/soc-component.h' line='356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_sysclk'>
+        <parameter type-id='807b7702'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_update_bits' mangled-name='snd_soc_component_update_bits' filepath='include/sound/soc-component.h' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_update_bits'>
+        <parameter type-id='807b7702'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_component_write' mangled-name='snd_soc_component_write' filepath='sound/soc/soc-component.c' line='479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_write'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='479' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='sound/soc/soc-component.c' line='480' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='sound/soc/soc-component.c' line='480' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_get_channel_map' mangled-name='snd_soc_dai_get_channel_map' filepath='sound/soc/soc-dai.c' line='263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_get_channel_map'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-dai.c' line='263' column='1'/>
+        <parameter type-id='807869d3' name='tx_num' filepath='sound/soc/soc-dai.c' line='264' column='1'/>
+        <parameter type-id='807869d3' name='tx_slot' filepath='sound/soc/soc-dai.c' line='264' column='1'/>
+        <parameter type-id='807869d3' name='rx_num' filepath='sound/soc/soc-dai.c' line='265' column='1'/>
+        <parameter type-id='807869d3' name='rx_slot' filepath='sound/soc/soc-dai.c' line='265' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_link_set_capabilities' mangled-name='snd_soc_dai_link_set_capabilities' filepath='sound/soc/soc-dai.c' line='418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_link_set_capabilities'>
+        <parameter type-id='af5a73b0' name='dai_link' filepath='sound/soc/soc-dai.c' line='418' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_set_channel_map' mangled-name='snd_soc_dai_set_channel_map' filepath='sound/soc/soc-dai.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_channel_map'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-dai.c' line='239' column='1'/>
+        <parameter type-id='f0981eeb' name='tx_num' filepath='sound/soc/soc-dai.c' line='240' column='1'/>
+        <parameter type-id='807869d3' name='tx_slot' filepath='sound/soc/soc-dai.c' line='240' column='1'/>
+        <parameter type-id='f0981eeb' name='rx_num' filepath='sound/soc/soc-dai.c' line='241' column='1'/>
+        <parameter type-id='807869d3' name='rx_slot' filepath='sound/soc/soc-dai.c' line='241' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_set_fmt' mangled-name='snd_soc_dai_set_fmt' filepath='include/sound/soc-dai.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_fmt'>
+        <parameter type-id='1c936db9'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_set_pll' mangled-name='snd_soc_dai_set_pll' filepath='sound/soc/soc-dai.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_pll'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-dai.c' line='101' column='1'/>
+        <parameter type-id='95e97e5e' name='pll_id' filepath='sound/soc/soc-dai.c' line='101' column='1'/>
+        <parameter type-id='95e97e5e' name='source' filepath='sound/soc/soc-dai.c' line='101' column='1'/>
+        <parameter type-id='f0981eeb' name='freq_in' filepath='sound/soc/soc-dai.c' line='102' column='1'/>
+        <parameter type-id='f0981eeb' name='freq_out' filepath='sound/soc/soc-dai.c' line='102' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_set_sysclk' mangled-name='snd_soc_dai_set_sysclk' filepath='sound/soc/soc-dai.c' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_sysclk'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-dai.c' line='52' column='1'/>
+        <parameter type-id='95e97e5e' name='clk_id' filepath='sound/soc/soc-dai.c' line='52' column='1'/>
+        <parameter type-id='f0981eeb' name='freq' filepath='sound/soc/soc-dai.c' line='53' column='1'/>
+        <parameter type-id='95e97e5e' name='dir' filepath='sound/soc/soc-dai.c' line='53' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dai_set_tdm_slot' mangled-name='snd_soc_dai_set_tdm_slot' filepath='sound/soc/soc-dai.c' line='203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_tdm_slot'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-dai.c' line='203' column='1'/>
+        <parameter type-id='f0981eeb' name='tx_mask' filepath='sound/soc/soc-dai.c' line='204' column='1'/>
+        <parameter type-id='f0981eeb' name='rx_mask' filepath='sound/soc/soc-dai.c' line='204' column='1'/>
+        <parameter type-id='95e97e5e' name='slots' filepath='sound/soc/soc-dai.c' line='205' column='1'/>
+        <parameter type-id='95e97e5e' name='slot_width' filepath='sound/soc/soc-dai.c' line='205' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_add_routes' mangled-name='snd_soc_dapm_add_routes' filepath='include/sound/soc-dapm.h' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_add_routes'>
+        <parameter type-id='70d004a5'/>
+        <parameter type-id='8f3d28b8'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_del_routes' mangled-name='snd_soc_dapm_del_routes' filepath='sound/soc/soc-dapm.c' line='3129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_del_routes'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='3129' column='1'/>
+        <parameter type-id='8f3d28b8' name='route' filepath='sound/soc/soc-dapm.c' line='3130' column='1'/>
+        <parameter type-id='95e97e5e' name='num' filepath='sound/soc/soc-dapm.c' line='3130' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_disable_pin' mangled-name='snd_soc_dapm_disable_pin' filepath='sound/soc/soc-dapm.c' line='4661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_disable_pin'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='4661' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4662' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_disable_pin_unlocked' mangled-name='snd_soc_dapm_disable_pin_unlocked' filepath='sound/soc/soc-dapm.c' line='4644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_disable_pin_unlocked'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='4644' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4645' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_force_enable_pin' mangled-name='snd_soc_dapm_force_enable_pin' filepath='sound/soc/soc-dapm.c' line='4617' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_force_enable_pin'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='4617' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4618' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_force_enable_pin_unlocked' mangled-name='snd_soc_dapm_force_enable_pin_unlocked' filepath='sound/soc/soc-dapm.c' line='4578' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_force_enable_pin_unlocked'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='4578' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4579' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_get_enum_double' mangled-name='snd_soc_dapm_get_enum_double' filepath='sound/soc/soc-dapm.c' line='3458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_get_enum_double'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3458' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3459' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_get_pin_status' mangled-name='snd_soc_dapm_get_pin_status' filepath='sound/soc/soc-dapm.c' line='4736' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_get_pin_status'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='4736' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4737' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_get_pin_switch' mangled-name='snd_soc_dapm_get_pin_switch' filepath='sound/soc/soc-dapm.c' line='3576' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_get_pin_switch'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3576' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3577' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_get_volsw' mangled-name='snd_soc_dapm_get_volsw' filepath='sound/soc/soc-dapm.c' line='3307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_get_volsw'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3307' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3308' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_ignore_suspend' mangled-name='snd_soc_dapm_ignore_suspend' filepath='sound/soc/soc-dapm.c' line='4759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_ignore_suspend'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='4759' column='1'/>
+        <parameter type-id='80f4b756' name='pin' filepath='sound/soc/soc-dapm.c' line='4760' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_info_pin_switch' mangled-name='snd_soc_dapm_info_pin_switch' filepath='sound/soc/soc-dapm.c' line='3558' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_info_pin_switch'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3558' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-dapm.c' line='3559' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_kcontrol_dapm' mangled-name='snd_soc_dapm_kcontrol_dapm' filepath='sound/soc/soc-dapm.c' line='591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_kcontrol_dapm'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='592' column='1'/>
+        <return type-id='70d004a5'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_kcontrol_widget' mangled-name='snd_soc_dapm_kcontrol_widget' filepath='sound/soc/soc-dapm.c' line='576' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_kcontrol_widget'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='577' column='1'/>
+        <return type-id='810606ec'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_mixer_update_power' mangled-name='snd_soc_dapm_mixer_update_power' filepath='sound/soc/soc-dapm.c' line='2363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_mixer_update_power'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='2363' column='1'/>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='2364' column='1'/>
+        <parameter type-id='95e97e5e' name='connect' filepath='sound/soc/soc-dapm.c' line='2364' column='1'/>
+        <parameter type-id='33146de3' name='update' filepath='sound/soc/soc-dapm.c' line='2365' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_mux_update_power' mangled-name='snd_soc_dapm_mux_update_power' filepath='sound/soc/soc-dapm.c' line='2298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_mux_update_power'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='2298' column='1'/>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='2299' column='1'/>
+        <parameter type-id='95e97e5e' name='mux' filepath='sound/soc/soc-dapm.c' line='2299' column='1'/>
+        <parameter type-id='acf1578a' name='e' filepath='sound/soc/soc-dapm.c' line='2299' column='1'/>
+        <parameter type-id='33146de3' name='update' filepath='sound/soc/soc-dapm.c' line='2300' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_new_controls' mangled-name='snd_soc_dapm_new_controls' filepath='include/sound/soc-dapm.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_new_controls'>
+        <parameter type-id='70d004a5'/>
+        <parameter type-id='dae78f89'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_put_enum_double' mangled-name='snd_soc_dapm_put_enum_double' filepath='sound/soc/soc-dapm.c' line='3495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_put_enum_double'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3495' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3496' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_put_pin_switch' mangled-name='snd_soc_dapm_put_pin_switch' filepath='sound/soc/soc-dapm.c' line='3599' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_put_pin_switch'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3599' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3600' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_put_volsw' mangled-name='snd_soc_dapm_put_volsw' filepath='sound/soc/soc-dapm.c' line='3366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_put_volsw'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-dapm.c' line='3366' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3367' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_sync' mangled-name='snd_soc_dapm_sync' filepath='include/sound/soc-dapm.h' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_sync'>
+        <parameter type-id='70d004a5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_dapm_sync_unlocked' mangled-name='snd_soc_dapm_sync_unlocked' filepath='sound/soc/soc-dapm.c' line='2613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_sync_unlocked'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='2613' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_get_enum_double' mangled-name='snd_soc_get_enum_double' filepath='sound/soc/soc-ops.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_enum_double'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='59' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='60' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_get_volsw' mangled-name='snd_soc_get_volsw' filepath='sound/soc/soc-ops.c' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_volsw'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='236' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='237' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_get_volsw_range' mangled-name='snd_soc_get_volsw_range' filepath='sound/soc/soc-ops.c' line='556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_volsw_range'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='556' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='557' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_get_volsw_sx' mangled-name='snd_soc_get_volsw_sx' filepath='sound/soc/soc-ops.c' line='378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_get_volsw_sx'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='378' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='379' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_info_enum_double' mangled-name='snd_soc_info_enum_double' filepath='sound/soc/soc-ops.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_enum_double'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='40' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='41' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_info_volsw' mangled-name='snd_soc_info_volsw' filepath='sound/soc/soc-ops.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_volsw'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='175' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='176' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_info_volsw_range' mangled-name='snd_soc_info_volsw_range' filepath='sound/soc/soc-ops.c' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_volsw_range'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='469' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='470' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_info_volsw_sx' mangled-name='snd_soc_info_volsw_sx' filepath='sound/soc/soc-ops.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_info_volsw_sx'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='210' column='1'/>
+        <parameter type-id='0e291009' name='uinfo' filepath='sound/soc/soc-ops.c' line='211' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_jack_add_gpios' mangled-name='snd_soc_jack_add_gpios' filepath='sound/soc/soc-jack.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_jack_add_gpios'>
+        <parameter type-id='12a060a4' name='jack' filepath='sound/soc/soc-jack.c' line='312' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='sound/soc/soc-jack.c' line='312' column='1'/>
+        <parameter type-id='3c269e0e' name='gpios' filepath='sound/soc/soc-jack.c' line='313' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_jack_report' mangled-name='snd_soc_jack_report' filepath='sound/soc/soc-jack.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_jack_report'>
+        <parameter type-id='12a060a4' name='jack' filepath='sound/soc/soc-jack.c' line='40' column='1'/>
+        <parameter type-id='95e97e5e' name='status' filepath='sound/soc/soc-jack.c' line='40' column='1'/>
+        <parameter type-id='95e97e5e' name='mask' filepath='sound/soc/soc-jack.c' line='40' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_soc_lookup_component' mangled-name='snd_soc_lookup_component' filepath='sound/soc/soc-core.c' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_lookup_component'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='333' column='1'/>
+        <parameter type-id='80f4b756' name='driver_name' filepath='sound/soc/soc-core.c' line='334' column='1'/>
+        <return type-id='807b7702'/>
+      </function-decl>
+      <function-decl name='snd_soc_new_compress' mangled-name='snd_soc_new_compress' filepath='sound/soc/soc-compress.c' line='750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_new_compress'>
+        <parameter type-id='95316552' name='rtd' filepath='sound/soc/soc-compress.c' line='750' column='1'/>
+        <parameter type-id='95e97e5e' name='num' filepath='sound/soc/soc-compress.c' line='750' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_get_dai_link_codecs' mangled-name='snd_soc_of_get_dai_link_codecs' filepath='sound/soc/soc-core.c' line='3163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_get_dai_link_codecs'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='3163' column='1'/>
+        <parameter type-id='9a537bbe' name='of_node' filepath='sound/soc/soc-core.c' line='3164' column='1'/>
+        <parameter type-id='af5a73b0' name='dai_link' filepath='sound/soc/soc-core.c' line='3165' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_get_dai_name' mangled-name='snd_soc_of_get_dai_name' filepath='sound/soc/soc-core.c' line='3110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_get_dai_name'>
+        <parameter type-id='9a537bbe' name='of_node' filepath='sound/soc/soc-core.c' line='3110' column='1'/>
+        <parameter type-id='7d3cd834' name='dai_name' filepath='sound/soc/soc-core.c' line='3111' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_audio_routing' mangled-name='snd_soc_of_parse_audio_routing' filepath='sound/soc/soc-core.c' line='2781' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_audio_routing'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2781' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='2782' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_audio_simple_widgets' mangled-name='snd_soc_of_parse_audio_simple_widgets' filepath='sound/soc/soc-core.c' line='2627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_audio_simple_widgets'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2627' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='2628' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_aux_devs' mangled-name='snd_soc_of_parse_aux_devs' filepath='sound/soc/soc-core.c' line='2837' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_aux_devs'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2837' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='2837' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_card_name' mangled-name='snd_soc_of_parse_card_name' filepath='sound/soc/soc-core.c' line='2590' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_card_name'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2590' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='2591' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_daifmt' mangled-name='snd_soc_of_parse_daifmt' filepath='sound/soc/soc-core.c' line='2868' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_daifmt'>
+        <parameter type-id='9a537bbe' name='np' filepath='sound/soc/soc-core.c' line='2868' column='1'/>
+        <parameter type-id='80f4b756' name='prefix' filepath='sound/soc/soc-core.c' line='2869' column='1'/>
+        <parameter type-id='856b89fc' name='bitclkmaster' filepath='sound/soc/soc-core.c' line='2870' column='1'/>
+        <parameter type-id='856b89fc' name='framemaster' filepath='sound/soc/soc-core.c' line='2871' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_node_prefix' mangled-name='snd_soc_of_parse_node_prefix' filepath='sound/soc/soc-core.c' line='2762' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_node_prefix'>
+        <parameter type-id='9a537bbe' name='np' filepath='sound/soc/soc-core.c' line='2762' column='1'/>
+        <parameter type-id='f10279fe' name='codec_conf' filepath='sound/soc/soc-core.c' line='2763' column='1'/>
+        <parameter type-id='9a537bbe' name='of_node' filepath='sound/soc/soc-core.c' line='2764' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='sound/soc/soc-core.c' line='2765' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_soc_of_parse_tdm_slot' mangled-name='snd_soc_of_parse_tdm_slot' filepath='sound/soc/soc-core.c' line='2726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_of_parse_tdm_slot'>
+        <parameter type-id='9a537bbe' name='np' filepath='sound/soc/soc-core.c' line='2726' column='1'/>
+        <parameter type-id='807869d3' name='tx_mask' filepath='sound/soc/soc-core.c' line='2727' column='1'/>
+        <parameter type-id='807869d3' name='rx_mask' filepath='sound/soc/soc-core.c' line='2728' column='1'/>
+        <parameter type-id='807869d3' name='slots' filepath='sound/soc/soc-core.c' line='2729' column='1'/>
+        <parameter type-id='807869d3' name='slot_width' filepath='sound/soc/soc-core.c' line='2730' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_params_to_bclk' mangled-name='snd_soc_params_to_bclk' filepath='sound/soc/soc-utils.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_params_to_bclk'>
+        <parameter type-id='363a995e' name='params' filepath='sound/soc/soc-utils.c' line='42' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_params_to_frame_size' mangled-name='snd_soc_params_to_frame_size' filepath='sound/soc/soc-utils.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_params_to_frame_size'>
+        <parameter type-id='363a995e' name='params' filepath='sound/soc/soc-utils.c' line='23' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='snd_soc_pm_ops' type-id='86af1d10' mangled-name='snd_soc_pm_ops' visibility='default' filepath='sound/soc/soc-core.c' line='2028' column='1' elf-symbol-id='snd_soc_pm_ops'/>
+      <function-decl name='snd_soc_put_enum_double' mangled-name='snd_soc_put_enum_double' filepath='sound/soc/soc-ops.c' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_enum_double'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='90' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='91' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_put_volsw' mangled-name='snd_soc_put_volsw' filepath='sound/soc/soc-ops.c' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_volsw'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='296' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='297' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_put_volsw_range' mangled-name='snd_soc_put_volsw_range' filepath='sound/soc/soc-ops.c' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_volsw_range'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='499' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='500' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_put_volsw_sx' mangled-name='snd_soc_put_volsw_sx' filepath='sound/soc/soc-ops.c' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_put_volsw_sx'>
+        <parameter type-id='7a5054b7' name='kcontrol' filepath='sound/soc/soc-ops.c' line='415' column='1'/>
+        <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-ops.c' line='416' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_register_card' mangled-name='snd_soc_register_card' filepath='sound/soc/soc-core.c' line='2176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_register_card'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2176' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_register_component' mangled-name='snd_soc_register_component' filepath='sound/soc/soc-core.c' line='2520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_register_component'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='2520' column='1'/>
+        <parameter type-id='f030c2b8' name='component_driver' filepath='sound/soc/soc-core.c' line='2521' column='1'/>
+        <parameter type-id='763d26a2' name='dai_drv' filepath='sound/soc/soc-core.c' line='2522' column='1'/>
+        <parameter type-id='95e97e5e' name='num_dai' filepath='sound/soc/soc-core.c' line='2523' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_runtime_calc_hw' mangled-name='snd_soc_runtime_calc_hw' filepath='sound/soc/soc-pcm.c' line='501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_runtime_calc_hw'>
+        <parameter type-id='95316552' name='rtd' filepath='sound/soc/soc-pcm.c' line='501' column='1'/>
+        <parameter type-id='17e4a02a' name='hw' filepath='sound/soc/soc-pcm.c' line='502' column='1'/>
+        <parameter type-id='95e97e5e' name='stream' filepath='sound/soc/soc-pcm.c' line='502' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_runtime_set_dai_fmt' mangled-name='snd_soc_runtime_set_dai_fmt' filepath='sound/soc/soc-core.c' line='1422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_runtime_set_dai_fmt'>
+        <parameter type-id='95316552' name='rtd' filepath='sound/soc/soc-core.c' line='1422' column='1'/>
+        <parameter type-id='f0981eeb' name='dai_fmt' filepath='sound/soc/soc-core.c' line='1423' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_set_runtime_hwparams' mangled-name='snd_soc_set_runtime_hwparams' filepath='include/sound/soc.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_set_runtime_hwparams'>
+        <parameter type-id='06b2cd14'/>
+        <parameter type-id='d661a615'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_unregister_card' mangled-name='snd_soc_unregister_card' filepath='sound/soc/soc-core.c' line='2209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_unregister_card'>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-core.c' line='2209' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snd_soc_unregister_component' mangled-name='snd_soc_unregister_component' filepath='sound/soc/soc-core.c' line='2573' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_unregister_component'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-core.c' line='2573' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='snd_vendor_set_ops' mangled-name='snd_vendor_set_ops' filepath='sound/usb/card.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_vendor_set_ops'>
+        <parameter type-id='39c41052' name='ops' filepath='sound/usb/card.c' line='117' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='snprintf' mangled-name='snprintf' filepath='include/linux/kernel.h' line='479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snprintf'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='soc_device_register' mangled-name='soc_device_register' filepath='drivers/base/soc.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='soc_device_register'>
+        <parameter type-id='2dbbe856' name='soc_dev_attr' filepath='drivers/base/soc.c' line='114' column='1'/>
+        <return type-id='97eb1967'/>
+      </function-decl>
+      <function-decl name='soc_device_unregister' mangled-name='soc_device_unregister' filepath='drivers/base/soc.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='soc_device_unregister'>
+        <parameter type-id='97eb1967' name='soc_dev' filepath='drivers/base/soc.c' line='172' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sock_alloc_send_skb' mangled-name='sock_alloc_send_skb' filepath='net/core/sock.c' line='2366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_alloc_send_skb'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2366' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='net/core/sock.c' line='2366' column='1'/>
+        <parameter type-id='95e97e5e' name='noblock' filepath='net/core/sock.c' line='2367' column='1'/>
+        <parameter type-id='7292109c' name='errcode' filepath='net/core/sock.c' line='2367' column='1'/>
+        <return type-id='0fbf3cfd'/>
+      </function-decl>
+      <function-decl name='sock_create_kern' mangled-name='sock_create_kern' filepath='net/socket.c' line='1484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_create_kern'>
+        <parameter type-id='a2bff676' name='net' filepath='net/socket.c' line='1484' column='1'/>
+        <parameter type-id='95e97e5e' name='family' filepath='net/socket.c' line='1484' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='net/socket.c' line='1484' column='1'/>
+        <parameter type-id='95e97e5e' name='protocol' filepath='net/socket.c' line='1484' column='1'/>
+        <parameter type-id='1a7bb5c8' name='res' filepath='net/socket.c' line='1484' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_efree' mangled-name='sock_efree' filepath='net/core/sock.c' line='2155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_efree'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/sock.c' line='2155' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sock_gettstamp' mangled-name='sock_gettstamp' filepath='net/core/sock.c' line='3139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_gettstamp'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='3139' column='1'/>
+        <parameter type-id='eaa32e2f' name='userstamp' filepath='net/core/sock.c' line='3139' column='1'/>
+        <parameter type-id='b50a4934' name='timeval' filepath='net/core/sock.c' line='3140' column='1'/>
+        <parameter type-id='b50a4934' name='time32' filepath='net/core/sock.c' line='3140' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_init_data' mangled-name='sock_init_data' filepath='include/net/sock.h' line='1763' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_init_data'>
+        <parameter type-id='13103032'/>
+        <parameter type-id='f772df6d'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sock_no_accept' mangled-name='sock_no_accept' filepath='net/core/sock.c' line='2769' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_accept'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2769' column='1'/>
+        <parameter type-id='13103032' name='newsock' filepath='net/core/sock.c' line='2769' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/core/sock.c' line='2769' column='1'/>
+        <parameter type-id='b50a4934' name='kern' filepath='net/core/sock.c' line='2770' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_no_listen' mangled-name='sock_no_listen' filepath='net/core/sock.c' line='2789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_listen'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2789' column='1'/>
+        <parameter type-id='95e97e5e' name='backlog' filepath='net/core/sock.c' line='2789' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_no_mmap' mangled-name='sock_no_mmap' filepath='net/core/sock.c' line='2820' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_mmap'>
+        <parameter type-id='77e79a4b' name='file' filepath='net/core/sock.c' line='2820' column='1'/>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2820' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='net/core/sock.c' line='2820' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_no_sendpage' mangled-name='sock_no_sendpage' filepath='include/net/sock.h' line='1740' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_sendpage'>
+        <parameter type-id='13103032'/>
+        <parameter type-id='02f11ed4'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='sock_no_shutdown' mangled-name='sock_no_shutdown' filepath='net/core/sock.c' line='2795' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_shutdown'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2795' column='1'/>
+        <parameter type-id='95e97e5e' name='how' filepath='net/core/sock.c' line='2795' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_no_socketpair' mangled-name='sock_no_socketpair' filepath='net/core/sock.c' line='2763' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_socketpair'>
+        <parameter type-id='13103032' name='sock1' filepath='net/core/sock.c' line='2763' column='1'/>
+        <parameter type-id='13103032' name='sock2' filepath='net/core/sock.c' line='2763' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_queue_rcv_skb' mangled-name='sock_queue_rcv_skb' filepath='include/net/sock.h' line='2242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_queue_rcv_skb'>
+        <parameter type-id='f772df6d'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_recvmsg' mangled-name='sock_recvmsg' filepath='include/linux/net.h' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_recvmsg'>
+        <parameter type-id='13103032'/>
+        <parameter type-id='6b9b777a'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_register' mangled-name='sock_register' filepath='include/linux/net.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_register'>
+        <parameter type-id='81a51edb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_release' mangled-name='sock_release' filepath='include/linux/net.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_release'>
+        <parameter type-id='13103032'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sock_setsockopt' mangled-name='sock_setsockopt' filepath='include/net/sock.h' line='1689' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_setsockopt'>
+        <parameter type-id='13103032'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='298d29fd'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sock_unregister' mangled-name='sock_unregister' filepath='include/linux/net.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_unregister'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sock_wfree' mangled-name='sock_wfree' filepath='net/core/sock.c' line='2051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_wfree'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/sock.c' line='2051' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sockfd_lookup' mangled-name='sockfd_lookup' filepath='include/linux/net.h' line='248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sockfd_lookup'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='13103032'/>
+      </function-decl>
+      <var-decl name='softnet_data' type-id='035aa62d' mangled-name='softnet_data' visibility='default' filepath='net/core/dev.c' line='403' column='1' elf-symbol-id='softnet_data'/>
+      <function-decl name='sort' mangled-name='sort' filepath='lib/sort.c' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sort'>
+        <parameter type-id='eaa32e2f' name='base' filepath='lib/sort.c' line='266' column='1'/>
+        <parameter type-id='b59d7dce' name='num' filepath='lib/sort.c' line='266' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/sort.c' line='266' column='1'/>
+        <parameter type-id='a08bda3c' name='cmp_func' filepath='lib/sort.c' line='267' column='1'/>
+        <parameter type-id='a271c445' name='swap_func' filepath='lib/sort.c' line='268' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='spi_bus_lock' mangled-name='spi_bus_lock' filepath='drivers/spi/spi.c' line='3934' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_bus_lock'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='3934' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_bus_unlock' mangled-name='spi_bus_unlock' filepath='drivers/spi/spi.c' line='3963' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_bus_unlock'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='3963' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_controller_resume' mangled-name='spi_controller_resume' filepath='drivers/spi/spi.c' line='2932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_controller_resume'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2932' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_controller_suspend' mangled-name='spi_controller_suspend' filepath='drivers/spi/spi.c' line='2916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_controller_suspend'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2916' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_delay_exec' mangled-name='spi_delay_exec' filepath='drivers/spi/spi.c' line='1207' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_delay_exec'>
+        <parameter type-id='652fafc9' name='_delay' filepath='drivers/spi/spi.c' line='1207' column='1'/>
+        <parameter type-id='7c11f655' name='xfer' filepath='drivers/spi/spi.c' line='1207' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_finalize_current_message' mangled-name='spi_finalize_current_message' filepath='drivers/spi/spi.c' line='1724' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_finalize_current_message'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='1724' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='spi_finalize_current_transfer' mangled-name='spi_finalize_current_transfer' filepath='drivers/spi/spi.c' line='1365' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_finalize_current_transfer'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='1365' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='spi_get_next_queued_message' mangled-name='spi_get_next_queued_message' filepath='drivers/spi/spi.c' line='1702' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_get_next_queued_message'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='1702' column='1'/>
+        <return type-id='bb7889ed'/>
+      </function-decl>
+      <function-decl name='spi_register_controller' mangled-name='spi_register_controller' filepath='drivers/spi/spi.c' line='2670' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_register_controller'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2670' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_set_cs_timing' mangled-name='spi_set_cs_timing' filepath='drivers/spi/spi.c' line='3460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_set_cs_timing'>
+        <parameter type-id='e90f4666' name='spi' filepath='drivers/spi/spi.c' line='3460' column='1'/>
+        <parameter type-id='652fafc9' name='setup' filepath='drivers/spi/spi.c' line='3460' column='1'/>
+        <parameter type-id='652fafc9' name='hold' filepath='drivers/spi/spi.c' line='3461' column='1'/>
+        <parameter type-id='652fafc9' name='inactive' filepath='drivers/spi/spi.c' line='3461' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_setup' mangled-name='spi_setup' filepath='drivers/spi/spi.c' line='3344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_setup'>
+        <parameter type-id='e90f4666' name='spi' filepath='drivers/spi/spi.c' line='3344' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_sync' mangled-name='spi_sync' filepath='include/linux/spi/spi.h' line='1249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_sync'>
+        <parameter type-id='e90f4666'/>
+        <parameter type-id='bb7889ed'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_sync_locked' mangled-name='spi_sync_locked' filepath='drivers/spi/spi.c' line='3913' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_sync_locked'>
+        <parameter type-id='e90f4666' name='spi' filepath='drivers/spi/spi.c' line='3913' column='1'/>
+        <parameter type-id='bb7889ed' name='message' filepath='drivers/spi/spi.c' line='3913' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spi_unregister_controller' mangled-name='spi_unregister_controller' filepath='drivers/spi/spi.c' line='2873' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_unregister_controller'>
+        <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2873' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='split_page' mangled-name='split_page' filepath='include/linux/mm.h' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='split_page'>
+        <parameter type-id='02f11ed4'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='spmi_controller_add' mangled-name='spmi_controller_add' filepath='drivers/spmi/spmi.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_controller_add'>
+        <parameter type-id='d5cbf711' name='ctrl' filepath='drivers/spmi/spmi.c' line='508' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_controller_alloc' mangled-name='spmi_controller_alloc' filepath='drivers/spmi/spmi.c' line='413' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_controller_alloc'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/spmi/spmi.c' line='413' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/spmi/spmi.c' line='414' column='1'/>
+        <return type-id='d5cbf711'/>
+      </function-decl>
+      <function-decl name='spmi_controller_remove' mangled-name='spmi_controller_remove' filepath='drivers/spmi/spmi.c' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_controller_remove'>
+        <parameter type-id='d5cbf711' name='ctrl' filepath='drivers/spmi/spmi.c' line='546' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='spmi_ext_register_read' mangled-name='spmi_ext_register_read' filepath='drivers/spmi/spmi.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_ext_register_read'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='161' column='1'/>
+        <parameter type-id='f9b06939' name='addr' filepath='drivers/spmi/spmi.c' line='161' column='1'/>
+        <parameter type-id='8bff8096' name='buf' filepath='drivers/spmi/spmi.c' line='161' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/spmi/spmi.c' line='162' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_ext_register_readl' mangled-name='spmi_ext_register_readl' filepath='drivers/spmi/spmi.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_ext_register_readl'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='183' column='1'/>
+        <parameter type-id='1dc6a898' name='addr' filepath='drivers/spmi/spmi.c' line='183' column='1'/>
+        <parameter type-id='8bff8096' name='buf' filepath='drivers/spmi/spmi.c' line='183' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/spmi/spmi.c' line='184' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_ext_register_write' mangled-name='spmi_ext_register_write' filepath='drivers/spmi/spmi.c' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_ext_register_write'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='238' column='1'/>
+        <parameter type-id='f9b06939' name='addr' filepath='drivers/spmi/spmi.c' line='238' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='drivers/spmi/spmi.c' line='238' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/spmi/spmi.c' line='239' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_ext_register_writel' mangled-name='spmi_ext_register_writel' filepath='drivers/spmi/spmi.c' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_ext_register_writel'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='260' column='1'/>
+        <parameter type-id='1dc6a898' name='addr' filepath='drivers/spmi/spmi.c' line='260' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='drivers/spmi/spmi.c' line='260' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/spmi/spmi.c' line='261' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_register_read' mangled-name='spmi_register_read' filepath='drivers/spmi/spmi.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_register_read'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='140' column='1'/>
+        <parameter type-id='f9b06939' name='addr' filepath='drivers/spmi/spmi.c' line='140' column='1'/>
+        <parameter type-id='8bff8096' name='buf' filepath='drivers/spmi/spmi.c' line='140' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_register_write' mangled-name='spmi_register_write' filepath='drivers/spmi/spmi.c' line='203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_register_write'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='203' column='1'/>
+        <parameter type-id='f9b06939' name='addr' filepath='drivers/spmi/spmi.c' line='203' column='1'/>
+        <parameter type-id='f9b06939' name='data' filepath='drivers/spmi/spmi.c' line='203' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='spmi_register_zero_write' mangled-name='spmi_register_zero_write' filepath='drivers/spmi/spmi.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_register_zero_write'>
+        <parameter type-id='893447fb' name='sdev' filepath='drivers/spmi/spmi.c' line='221' column='1'/>
+        <parameter type-id='f9b06939' name='data' filepath='drivers/spmi/spmi.c' line='221' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sprint_symbol' mangled-name='sprint_symbol' filepath='kernel/kallsyms.c' line='437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sprint_symbol'>
+        <parameter type-id='26a90f95' name='buffer' filepath='kernel/kallsyms.c' line='437' column='1'/>
+        <parameter type-id='7359adad' name='address' filepath='kernel/kallsyms.c' line='437' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sprintf' mangled-name='sprintf' filepath='lib/vsprintf.c' line='2872' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sprintf'>
+        <parameter type-id='26a90f95' name='buf' filepath='lib/vsprintf.c' line='2872' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/vsprintf.c' line='2872' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='srcu_init_notifier_head' mangled-name='srcu_init_notifier_head' filepath='kernel/notifier.c' line='522' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='srcu_init_notifier_head'>
+        <parameter type-id='b2cb1838' name='nh' filepath='kernel/notifier.c' line='522' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='srcu_notifier_call_chain' mangled-name='srcu_notifier_call_chain' filepath='kernel/notifier.c' line='497' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='srcu_notifier_call_chain'>
+        <parameter type-id='b2cb1838' name='nh' filepath='kernel/notifier.c' line='497' column='1'/>
+        <parameter type-id='7359adad' name='val' filepath='kernel/notifier.c' line='498' column='1'/>
+        <parameter type-id='eaa32e2f' name='v' filepath='kernel/notifier.c' line='498' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='srcu_notifier_chain_register' mangled-name='srcu_notifier_chain_register' filepath='kernel/notifier.c' line='430' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='srcu_notifier_chain_register'>
+        <parameter type-id='b2cb1838' name='nh' filepath='kernel/notifier.c' line='430' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='431' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='srcu_notifier_chain_unregister' mangled-name='srcu_notifier_chain_unregister' filepath='kernel/notifier.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='srcu_notifier_chain_unregister'>
+        <parameter type-id='b2cb1838' name='nh' filepath='kernel/notifier.c' line='460' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='461' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sscanf' mangled-name='sscanf' filepath='lib/vsprintf.c' line='3563' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sscanf'>
+        <parameter type-id='80f4b756' name='buf' filepath='lib/vsprintf.c' line='3563' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/vsprintf.c' line='3563' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='static_key_disable' mangled-name='static_key_disable' filepath='kernel/jump_label.c' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_disable'>
+        <parameter type-id='f8840c23' name='key' filepath='kernel/jump_label.c' line='212' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='static_key_slow_dec' mangled-name='static_key_slow_dec' filepath='include/linux/jump_label.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_slow_dec'>
+        <parameter type-id='f8840c23'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='static_key_slow_inc' mangled-name='static_key_slow_inc' filepath='include/linux/jump_label.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_slow_inc'>
+        <parameter type-id='f8840c23'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='stop_machine' mangled-name='stop_machine' filepath='include/linux/stop_machine.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='stop_machine'>
+        <parameter type-id='87dfefa3'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='5f8a1ac4'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='stpcpy' mangled-name='stpcpy' filepath='lib/string.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='stpcpy'>
+        <parameter type-id='266fe297' name='dest' filepath='lib/string.c' line='291' column='1'/>
+        <parameter type-id='9d26089a' name='src' filepath='lib/string.c' line='291' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strcasecmp' mangled-name='strcasecmp' filepath='lib/string.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strcasecmp'>
+        <parameter type-id='80f4b756' name='s1' filepath='lib/string.c' line='69' column='1'/>
+        <parameter type-id='80f4b756' name='s2' filepath='lib/string.c' line='69' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='strcat' mangled-name='strcat' filepath='lib/string.c' line='306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strcat'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='306' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='306' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strchrnul' mangled-name='strchrnul' filepath='include/linux/string.h' line='63' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strchrnul'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strcpy' mangled-name='strcpy' filepath='lib/string.c' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strcpy'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='89' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='89' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strcspn' mangled-name='strcspn' filepath='lib/string.c' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strcspn'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/string.c' line='625' column='1'/>
+        <parameter type-id='80f4b756' name='reject' filepath='lib/string.c' line='625' column='1'/>
+        <return type-id='9e19ad6e'/>
+      </function-decl>
+      <function-decl name='stream_open' mangled-name='stream_open' filepath='fs/open.c' line='1419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='stream_open'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/open.c' line='1419' column='1'/>
+        <parameter type-id='77e79a4b' name='filp' filepath='fs/open.c' line='1419' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='strim' mangled-name='strim' filepath='include/linux/string.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strim'>
+        <parameter type-id='26a90f95'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='string_get_size' mangled-name='string_get_size' filepath='lib/string_helpers.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='string_get_size'>
+        <parameter type-id='91ce1af9' name='size' filepath='lib/string_helpers.c' line='34' column='1'/>
+        <parameter type-id='91ce1af9' name='blk_size' filepath='lib/string_helpers.c' line='34' column='1'/>
+        <parameter type-id='5a685f5f' name='units' filepath='lib/string_helpers.c' line='34' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='lib/string_helpers.c' line='35' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='lib/string_helpers.c' line='35' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='strlcat' mangled-name='strlcat' filepath='lib/string.c' line='355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strlcat'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='355' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='355' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='355' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='strlcpy' mangled-name='strlcpy' filepath='lib/string.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strlcpy'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='141' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='141' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/string.c' line='141' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='strncasecmp' mangled-name='strncasecmp' filepath='lib/string.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncasecmp'>
+        <parameter type-id='80f4b756' name='s1' filepath='lib/string.c' line='43' column='1'/>
+        <parameter type-id='80f4b756' name='s2' filepath='lib/string.c' line='43' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='lib/string.c' line='43' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='strncat' mangled-name='strncat' filepath='lib/string.c' line='329' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncat'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='329' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='329' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='329' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strnchr' mangled-name='strnchr' filepath='include/linux/string.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strnchr'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strncpy' mangled-name='strncpy' filepath='lib/string.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncpy'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='114' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='114' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='114' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strncpy_from_user' mangled-name='strncpy_from_user' filepath='arch/arm64/include/asm/uaccess.h' line='543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncpy_from_user'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='strndup_user' mangled-name='strndup_user' filepath='include/linux/string.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strndup_user'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='bd54fe1a'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strnstr' mangled-name='strnstr' filepath='include/linux/string.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strnstr'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strpbrk' mangled-name='strpbrk' filepath='lib/string.c' line='649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strpbrk'>
+        <parameter type-id='80f4b756' name='cs' filepath='lib/string.c' line='649' column='1'/>
+        <parameter type-id='80f4b756' name='ct' filepath='lib/string.c' line='649' column='1'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strscpy' mangled-name='strscpy' filepath='include/linux/string.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strscpy'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='strsep' mangled-name='strsep' filepath='include/linux/string.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strsep'>
+        <parameter type-id='9b23c9ad'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='strspn' mangled-name='strspn' filepath='lib/string.c' line='598' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strspn'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/string.c' line='598' column='1'/>
+        <parameter type-id='80f4b756' name='accept' filepath='lib/string.c' line='598' column='1'/>
+        <return type-id='9e19ad6e'/>
+      </function-decl>
+      <function-decl name='strstr' mangled-name='strstr' filepath='include/linux/string.h' line='82' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strstr'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='submit_bio' mangled-name='submit_bio' filepath='include/linux/bio.h' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='submit_bio'>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='041bc907'/>
+      </function-decl>
+      <function-decl name='submit_bio_wait' mangled-name='submit_bio_wait' filepath='include/linux/bio.h' line='439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='submit_bio_wait'>
+        <parameter type-id='fb55efa1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='subsys_system_register' mangled-name='subsys_system_register' filepath='drivers/base/bus.c' line='1157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='subsys_system_register'>
+        <parameter type-id='5e2671f8' name='subsys' filepath='drivers/base/bus.c' line='1157' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/bus.c' line='1158' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sync_file_create' mangled-name='sync_file_create' filepath='include/linux/sync_file.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_create'>
+        <parameter type-id='28271da3'/>
+        <return type-id='6a6b0b01'/>
+      </function-decl>
+      <function-decl name='sync_file_get_fence' mangled-name='sync_file_get_fence' filepath='include/linux/sync_file.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_get_fence'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='28271da3'/>
+      </function-decl>
+      <function-decl name='synchronize_irq' mangled-name='synchronize_irq' filepath='kernel/irq/manage.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='127' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='synchronize_net' mangled-name='synchronize_net' filepath='include/linux/netdevice.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_net'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='synchronize_rcu' mangled-name='synchronize_rcu' filepath='include/linux/rcupdate.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_rcu'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='synchronize_srcu' mangled-name='synchronize_srcu' filepath='include/linux/srcu.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_srcu'>
+        <parameter type-id='f7d7131a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='sys_tz' type-id='6751193a' mangled-name='sys_tz' visibility='default' filepath='kernel/time/time.c' line='50' column='1' elf-symbol-id='sys_tz'/>
+      <function-decl name='syscon_node_to_regmap' mangled-name='syscon_node_to_regmap' filepath='include/linux/mfd/syscon.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='syscon_node_to_regmap'>
+        <parameter type-id='9a537bbe'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <function-decl name='syscon_regmap_lookup_by_phandle' mangled-name='syscon_regmap_lookup_by_phandle' filepath='include/linux/mfd/syscon.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='syscon_regmap_lookup_by_phandle'>
+        <parameter type-id='9a537bbe'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='29af9a71'/>
+      </function-decl>
+      <var-decl name='sysctl_sched_features' type-id='f0981eeb' mangled-name='sysctl_sched_features' visibility='default' filepath='kernel/sched/core.c' line='69' column='1' elf-symbol-id='sysctl_sched_features'/>
+      <var-decl name='sysctl_sched_latency' type-id='f0981eeb' mangled-name='sysctl_sched_latency' visibility='default' filepath='kernel/sched/fair.c' line='40' column='1' elf-symbol-id='sysctl_sched_latency'/>
+      <function-decl name='sysfs_add_file_to_group' mangled-name='sysfs_add_file_to_group' filepath='fs/sysfs/file.c' line='358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_add_file_to_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/file.c' line='358' column='1'/>
+        <parameter type-id='cfe4f8a2' name='attr' filepath='fs/sysfs/file.c' line='359' column='1'/>
+        <parameter type-id='80f4b756' name='group' filepath='fs/sysfs/file.c' line='359' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_add_link_to_group' mangled-name='sysfs_add_link_to_group' filepath='fs/sysfs/group.c' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_add_link_to_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='382' column='1'/>
+        <parameter type-id='80f4b756' name='group_name' filepath='fs/sysfs/group.c' line='382' column='1'/>
+        <parameter type-id='d30bdc51' name='target' filepath='fs/sysfs/group.c' line='383' column='1'/>
+        <parameter type-id='80f4b756' name='link_name' filepath='fs/sysfs/group.c' line='383' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_create_file_ns' mangled-name='sysfs_create_file_ns' filepath='include/linux/sysfs.h' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_file_ns'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='cfe4f8a2'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_create_files' mangled-name='sysfs_create_files' filepath='fs/sysfs/file.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_files'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/file.c' line='338' column='1'/>
+        <parameter type-id='cb460785' name='ptr' filepath='fs/sysfs/file.c' line='338' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_create_group' mangled-name='sysfs_create_group' filepath='fs/sysfs/group.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='172' column='1'/>
+        <parameter type-id='8ff9530e' name='grp' filepath='fs/sysfs/group.c' line='173' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_create_groups' mangled-name='sysfs_create_groups' filepath='include/linux/sysfs.h' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_groups'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='c97de1ac'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_create_link' mangled-name='sysfs_create_link' filepath='include/linux/sysfs.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_link'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_emit' mangled-name='sysfs_emit' filepath='include/linux/sysfs.h' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_emit'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_emit_at' mangled-name='sysfs_emit_at' filepath='include/linux/sysfs.h' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_emit_at'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysfs_notify' mangled-name='sysfs_notify' filepath='fs/sysfs/file.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_notify'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/file.c' line='173' column='1'/>
+        <parameter type-id='80f4b756' name='dir' filepath='fs/sysfs/file.c' line='173' column='1'/>
+        <parameter type-id='80f4b756' name='attr' filepath='fs/sysfs/file.c' line='173' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_remove_file_from_group' mangled-name='sysfs_remove_file_from_group' filepath='fs/sysfs/file.c' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_file_from_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/file.c' line='513' column='1'/>
+        <parameter type-id='cfe4f8a2' name='attr' filepath='fs/sysfs/file.c' line='514' column='1'/>
+        <parameter type-id='80f4b756' name='group' filepath='fs/sysfs/file.c' line='514' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_remove_file_ns' mangled-name='sysfs_remove_file_ns' filepath='include/linux/sysfs.h' line='259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_file_ns'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='cfe4f8a2'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_remove_group' mangled-name='sysfs_remove_group' filepath='include/linux/sysfs.h' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_group'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='8ff9530e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_remove_groups' mangled-name='sysfs_remove_groups' filepath='fs/sysfs/group.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_groups'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='305' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='fs/sysfs/group.c' line='306' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_remove_link' mangled-name='sysfs_remove_link' filepath='include/linux/sysfs.h' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_link'>
+        <parameter type-id='d30bdc51'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_remove_link_from_group' mangled-name='sysfs_remove_link_from_group' filepath='fs/sysfs/group.c' line='405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_link_from_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='405' column='1'/>
+        <parameter type-id='80f4b756' name='group_name' filepath='fs/sysfs/group.c' line='405' column='1'/>
+        <parameter type-id='80f4b756' name='link_name' filepath='fs/sysfs/group.c' line='406' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='sysfs_streq' mangled-name='sysfs_streq' filepath='include/linux/string.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_streq'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='sysfs_update_group' mangled-name='sysfs_update_group' filepath='fs/sysfs/group.c' line='255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_update_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='255' column='1'/>
+        <parameter type-id='8ff9530e' name='grp' filepath='fs/sysfs/group.c' line='256' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='sysrq_mask' mangled-name='sysrq_mask' filepath='include/linux/sysrq.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysrq_mask'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='system_freezing_cnt' type-id='49178f86' mangled-name='system_freezing_cnt' visibility='default' filepath='kernel/freezer.c' line='20' column='1' elf-symbol-id='system_freezing_cnt'/>
+      <var-decl name='system_highpri_wq' type-id='242e3d19' mangled-name='system_highpri_wq' visibility='default' filepath='kernel/workqueue.c' line='350' column='1' elf-symbol-id='system_highpri_wq'/>
+      <var-decl name='system_long_wq' type-id='242e3d19' mangled-name='system_long_wq' visibility='default' filepath='kernel/workqueue.c' line='352' column='1' elf-symbol-id='system_long_wq'/>
+      <var-decl name='system_power_efficient_wq' type-id='242e3d19' mangled-name='system_power_efficient_wq' visibility='default' filepath='kernel/workqueue.c' line='358' column='1' elf-symbol-id='system_power_efficient_wq'/>
+      <var-decl name='system_state' type-id='2ead22b4' mangled-name='system_state' visibility='default' filepath='init/main.c' line='129' column='1' elf-symbol-id='system_state'/>
+      <var-decl name='system_unbound_wq' type-id='242e3d19' mangled-name='system_unbound_wq' visibility='default' filepath='kernel/workqueue.c' line='354' column='1' elf-symbol-id='system_unbound_wq'/>
+      <var-decl name='system_wq' type-id='242e3d19' mangled-name='system_wq' visibility='default' filepath='kernel/workqueue.c' line='348' column='1' elf-symbol-id='system_wq'/>
+      <function-decl name='task_active_pid_ns' mangled-name='task_active_pid_ns' filepath='include/linux/pid_namespace.h' line='87' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='task_active_pid_ns'>
+        <parameter type-id='f23e2572'/>
+        <return type-id='b816e1d0'/>
+      </function-decl>
+      <function-decl name='task_may_not_preempt' mangled-name='task_may_not_preempt' filepath='kernel/sched/rt.c' line='1479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='task_may_not_preempt'>
+        <parameter type-id='f23e2572' name='task' filepath='kernel/sched/rt.c' line='1479' column='1'/>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/rt.c' line='1479' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='task_rq_lock' mangled-name='task_rq_lock' filepath='kernel/sched/core.c' line='218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='task_rq_lock'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='218' column='1'/>
+        <parameter type-id='d0163a5e' name='rf' filepath='kernel/sched/core.c' line='218' column='1'/>
+        <return type-id='6ed6b432'/>
+      </function-decl>
+      <function-decl name='tasklet_init' mangled-name='tasklet_init' filepath='kernel/softirq.c' line='612' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tasklet_init'>
+        <parameter type-id='59f1923f' name='t' filepath='kernel/softirq.c' line='612' column='1'/>
+        <parameter type-id='08b16374' name='func' filepath='kernel/softirq.c' line='613' column='1'/>
+        <parameter type-id='7359adad' name='data' filepath='kernel/softirq.c' line='613' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tasklet_kill' mangled-name='tasklet_kill' filepath='kernel/softirq.c' line='624' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tasklet_kill'>
+        <parameter type-id='59f1923f' name='t' filepath='kernel/softirq.c' line='624' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tasklet_setup' mangled-name='tasklet_setup' filepath='kernel/softirq.c' line='600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tasklet_setup'>
+        <parameter type-id='59f1923f' name='t' filepath='kernel/softirq.c' line='600' column='1'/>
+        <parameter type-id='02da239e' name='callback' filepath='kernel/softirq.c' line='601' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpci_get_tcpm_port' mangled-name='tcpci_get_tcpm_port' filepath='drivers/usb/typec/tcpm/tcpci.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpci_get_tcpm_port'>
+        <parameter type-id='eefe253e' name='tcpci' filepath='drivers/usb/typec/tcpm/tcpci.c' line='64' column='1'/>
+        <return type-id='426e425b'/>
+      </function-decl>
+      <function-decl name='tcpci_irq' mangled-name='tcpci_irq' filepath='drivers/usb/typec/tcpm/tcpci.c' line='661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpci_irq'>
+        <parameter type-id='eefe253e' name='tcpci' filepath='drivers/usb/typec/tcpm/tcpci.c' line='661' column='1'/>
+        <return type-id='4bdecfd7'/>
+      </function-decl>
+      <function-decl name='tcpci_register_port' mangled-name='tcpci_register_port' filepath='drivers/usb/typec/tcpm/tcpci.c' line='773' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpci_register_port'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/typec/tcpm/tcpci.c' line='773' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='drivers/usb/typec/tcpm/tcpci.c' line='773' column='1'/>
+        <return type-id='eefe253e'/>
+      </function-decl>
+      <function-decl name='tcpci_unregister_port' mangled-name='tcpci_unregister_port' filepath='drivers/usb/typec/tcpm/tcpci.c' line='828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpci_unregister_port'>
+        <parameter type-id='eefe253e' name='tcpci' filepath='drivers/usb/typec/tcpm/tcpci.c' line='828' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_cc_change' mangled-name='tcpm_cc_change' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_cc_change'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5513' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_is_toggling' mangled-name='tcpm_is_toggling' filepath='drivers/usb/typec/tcpm/tcpm.c' line='3823' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_is_toggling'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='3823' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='tcpm_pd_hard_reset' mangled-name='tcpm_pd_hard_reset' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5531' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_pd_hard_reset'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5531' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_pd_receive' mangled-name='tcpm_pd_receive' filepath='drivers/usb/typec/tcpm/tcpm.c' line='2942' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_pd_receive'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='2942' column='1'/>
+        <parameter type-id='d7f1fb72' name='msg' filepath='drivers/usb/typec/tcpm/tcpm.c' line='2942' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_pd_transmit_complete' mangled-name='tcpm_pd_transmit_complete' filepath='drivers/usb/typec/tcpm/tcpm.c' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_pd_transmit_complete'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='924' column='1'/>
+        <parameter type-id='a2f9e316' name='status' filepath='drivers/usb/typec/tcpm/tcpm.c' line='925' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_sink_frs' mangled-name='tcpm_sink_frs' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_sink_frs'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5540' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_sourcing_vbus' mangled-name='tcpm_sourcing_vbus' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5549' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_sourcing_vbus'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5549' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tcpm_update_sink_capabilities' mangled-name='tcpm_update_sink_capabilities' filepath='drivers/usb/typec/tcpm/tcpm.c' line='6220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_update_sink_capabilities'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='6220' column='1'/>
+        <parameter type-id='aded214c' name='pdo' filepath='drivers/usb/typec/tcpm/tcpm.c' line='6220' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_pdo' filepath='drivers/usb/typec/tcpm/tcpm.c' line='6220' column='1'/>
+        <parameter type-id='f0981eeb' name='operating_snk_mw' filepath='drivers/usb/typec/tcpm/tcpm.c' line='6221' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='tcpm_vbus_change' mangled-name='tcpm_vbus_change' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5522' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tcpm_vbus_change'>
+        <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5522' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='thermal_cdev_update' mangled-name='thermal_cdev_update' filepath='include/linux/thermal.h' line='414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cdev_update'>
+        <parameter type-id='2feec21f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='thermal_cooling_device_register' mangled-name='thermal_cooling_device_register' filepath='drivers/thermal/thermal_core.c' line='1169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cooling_device_register'>
+        <parameter type-id='80f4b756' name='type' filepath='drivers/thermal/thermal_core.c' line='1169' column='1'/>
+        <parameter type-id='eaa32e2f' name='devdata' filepath='drivers/thermal/thermal_core.c' line='1169' column='1'/>
+        <parameter type-id='6f4dc085' name='ops' filepath='drivers/thermal/thermal_core.c' line='1170' column='1'/>
+        <return type-id='2feec21f'/>
+      </function-decl>
+      <function-decl name='thermal_cooling_device_unregister' mangled-name='thermal_cooling_device_unregister' filepath='include/linux/thermal.h' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cooling_device_unregister'>
+        <parameter type-id='2feec21f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='thermal_of_cooling_device_register' mangled-name='thermal_of_cooling_device_register' filepath='drivers/thermal/thermal_core.c' line='1192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_of_cooling_device_register'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/thermal/thermal_core.c' line='1192' column='1'/>
+        <parameter type-id='80f4b756' name='type' filepath='drivers/thermal/thermal_core.c' line='1193' column='1'/>
+        <parameter type-id='eaa32e2f' name='devdata' filepath='drivers/thermal/thermal_core.c' line='1193' column='1'/>
+        <parameter type-id='6f4dc085' name='ops' filepath='drivers/thermal/thermal_core.c' line='1194' column='1'/>
+        <return type-id='2feec21f'/>
+      </function-decl>
+      <function-decl name='thermal_zone_device_disable' mangled-name='thermal_zone_device_disable' filepath='drivers/thermal/thermal_core.c' line='529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_disable'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_core.c' line='529' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='thermal_zone_device_enable' mangled-name='thermal_zone_device_enable' filepath='drivers/thermal/thermal_core.c' line='523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_enable'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_core.c' line='523' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='thermal_zone_device_is_enabled' mangled-name='thermal_zone_device_is_enabled' filepath='drivers/thermal/thermal_core.c' line='535' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_is_enabled'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_core.c' line='535' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='thermal_zone_device_register' mangled-name='thermal_zone_device_register' filepath='include/linux/thermal.h' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_register'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='1e6fe389'/>
+        <parameter type-id='e2cbf964'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='404b1300'/>
+      </function-decl>
+      <function-decl name='thermal_zone_device_unregister' mangled-name='thermal_zone_device_unregister' filepath='include/linux/thermal.h' line='387' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_unregister'>
+        <parameter type-id='404b1300'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='thermal_zone_device_update' mangled-name='thermal_zone_device_update' filepath='drivers/thermal/thermal_core.c' line='549' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_update'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_core.c' line='549' column='1'/>
+        <parameter type-id='b5808f5e' name='event' filepath='drivers/thermal/thermal_core.c' line='550' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='thermal_zone_get_slope' mangled-name='thermal_zone_get_slope' filepath='drivers/thermal/thermal_helpers.c' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_get_slope'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_helpers.c' line='226' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='thermal_zone_get_temp' mangled-name='thermal_zone_get_temp' filepath='include/linux/thermal.h' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_get_temp'>
+        <parameter type-id='404b1300'/>
+        <parameter type-id='7292109c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='thermal_zone_get_zone_by_name' mangled-name='thermal_zone_get_zone_by_name' filepath='drivers/thermal/thermal_core.c' line='1589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_get_zone_by_name'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/thermal/thermal_core.c' line='1589' column='1'/>
+        <return type-id='404b1300'/>
+      </function-decl>
+      <function-decl name='thermal_zone_of_sensor_register' mangled-name='thermal_zone_of_sensor_register' filepath='drivers/thermal/thermal_of.c' line='493' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_of_sensor_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/thermal/thermal_of.c' line='493' column='1'/>
+        <parameter type-id='95e97e5e' name='sensor_id' filepath='drivers/thermal/thermal_of.c' line='493' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/thermal/thermal_of.c' line='493' column='1'/>
+        <parameter type-id='83036d6c' name='ops' filepath='drivers/thermal/thermal_of.c' line='494' column='1'/>
+        <return type-id='404b1300'/>
+      </function-decl>
+      <function-decl name='thermal_zone_of_sensor_unregister' mangled-name='thermal_zone_of_sensor_unregister' filepath='drivers/thermal/thermal_of.c' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_of_sensor_unregister'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/thermal/thermal_of.c' line='551' column='1'/>
+        <parameter type-id='404b1300' name='tzd' filepath='drivers/thermal/thermal_of.c' line='552' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='thread_group_cputime_adjusted' mangled-name='thread_group_cputime_adjusted' filepath='include/linux/sched/cputime.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thread_group_cputime_adjusted'>
+        <parameter type-id='f23e2572'/>
+        <parameter type-id='3df9fd28'/>
+        <parameter type-id='3df9fd28'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tick_nohz_get_idle_calls_cpu' mangled-name='tick_nohz_get_idle_calls_cpu' filepath='include/linux/tick.h' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tick_nohz_get_idle_calls_cpu'>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='time64_to_tm' mangled-name='time64_to_tm' filepath='kernel/time/timeconv.c' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='time64_to_tm'>
+        <parameter type-id='1afd27ac' name='totalsecs' filepath='kernel/time/timeconv.c' line='78' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='kernel/time/timeconv.c' line='78' column='1'/>
+        <parameter type-id='d915a820' name='result' filepath='kernel/time/timeconv.c' line='78' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='timecounter_init' mangled-name='timecounter_init' filepath='kernel/time/timecounter.c' line='8' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='timecounter_init'>
+        <parameter type-id='b548a676' name='tc' filepath='kernel/time/timecounter.c' line='8' column='1'/>
+        <parameter type-id='51a502f8' name='cc' filepath='kernel/time/timecounter.c' line='9' column='1'/>
+        <parameter type-id='91ce1af9' name='start_tstamp' filepath='kernel/time/timecounter.c' line='10' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='timecounter_read' mangled-name='timecounter_read' filepath='kernel/time/timecounter.c' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='timecounter_read'>
+        <parameter type-id='b548a676' name='tc' filepath='kernel/time/timecounter.c' line='52' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='topology_set_thermal_pressure' mangled-name='topology_set_thermal_pressure' filepath='drivers/base/arch_topology.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='topology_set_thermal_pressure'>
+        <parameter type-id='5f8a1ac4' name='cpus' filepath='drivers/base/arch_topology.c' line='74' column='1'/>
+        <parameter type-id='7359adad' name='th_pressure' filepath='drivers/base/arch_topology.c' line='75' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='touch_softlockup_watchdog' mangled-name='touch_softlockup_watchdog' filepath='include/linux/nmi.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='touch_softlockup_watchdog'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='trace_event_buffer_commit' mangled-name='trace_event_buffer_commit' filepath='include/linux/trace_events.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_commit'>
+        <parameter type-id='9f548f9a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='trace_event_buffer_reserve' mangled-name='trace_event_buffer_reserve' filepath='include/linux/trace_events.h' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_reserve'>
+        <parameter type-id='9f548f9a'/>
+        <parameter type-id='3d4ca6d2'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='trace_event_ignore_this_pid' mangled-name='trace_event_ignore_this_pid' filepath='include/linux/trace_events.h' line='595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_ignore_this_pid'>
+        <parameter type-id='3d4ca6d2'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='trace_event_raw_init' mangled-name='trace_event_raw_init' filepath='kernel/trace/trace_events.c' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_raw_init'>
+        <parameter type-id='23d6768c' name='call' filepath='kernel/trace/trace_events.c' line='220' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='trace_event_reg' mangled-name='trace_event_reg' filepath='kernel/trace/trace_events.c' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_reg'>
+        <parameter type-id='23d6768c' name='call' filepath='kernel/trace/trace_events.c' line='286' column='1'/>
+        <parameter type-id='7fa6eeb8' name='type' filepath='kernel/trace/trace_events.c' line='287' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/trace/trace_events.c' line='287' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='trace_handle_return' mangled-name='trace_handle_return' filepath='include/linux/trace_events.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_handle_return'>
+        <parameter type-id='fc932690'/>
+        <return type-id='b1a0a119'/>
+      </function-decl>
+      <function-decl name='trace_output_call' mangled-name='trace_output_call' filepath='kernel/trace/trace_output.c' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_output_call'>
+        <parameter type-id='18881289' name='iter' filepath='kernel/trace/trace_output.c' line='326' column='1'/>
+        <parameter type-id='26a90f95' name='name' filepath='kernel/trace/trace_output.c' line='326' column='1'/>
+        <parameter type-id='26a90f95' name='fmt' filepath='kernel/trace/trace_output.c' line='326' column='1'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='trace_print_array_seq' mangled-name='trace_print_array_seq' filepath='include/linux/trace_events.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_array_seq'>
+        <parameter type-id='fc932690'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='trace_print_bitmask_seq' mangled-name='trace_print_bitmask_seq' filepath='include/linux/trace_events.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_bitmask_seq'>
+        <parameter type-id='fc932690'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='trace_print_flags_seq' mangled-name='trace_print_flags_seq' filepath='include/linux/trace_events.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_flags_seq'>
+        <parameter type-id='fc932690'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='49526a0d'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='trace_print_hex_seq' mangled-name='trace_print_hex_seq' filepath='kernel/trace/trace_output.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_hex_seq'>
+        <parameter type-id='fc932690' name='p' filepath='kernel/trace/trace_output.c' line='217' column='1'/>
+        <parameter type-id='354f7eb9' name='buf' filepath='kernel/trace/trace_output.c' line='217' column='1'/>
+        <parameter type-id='95e97e5e' name='buf_len' filepath='kernel/trace/trace_output.c' line='217' column='1'/>
+        <parameter type-id='b50a4934' name='concatenate' filepath='kernel/trace/trace_output.c' line='218' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='trace_print_symbols_seq' mangled-name='trace_print_symbols_seq' filepath='include/linux/trace_events.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_symbols_seq'>
+        <parameter type-id='fc932690'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='49526a0d'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='trace_raw_output_prep' mangled-name='trace_raw_output_prep' filepath='include/linux/trace_events.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_raw_output_prep'>
+        <parameter type-id='18881289'/>
+        <parameter type-id='fb7d87a1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='trace_seq_printf' mangled-name='trace_seq_printf' filepath='include/linux/trace_seq.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_seq_printf'>
+        <parameter type-id='fc932690'/>
+        <parameter type-id='80f4b756'/>
+        <parameter is-variadic='yes'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='trace_seq_putc' mangled-name='trace_seq_putc' filepath='include/linux/trace_seq.h' line='86' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_seq_putc'>
+        <parameter type-id='fc932690'/>
+        <parameter type-id='002ac4a6'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tracepoint_probe_register' mangled-name='tracepoint_probe_register' filepath='include/linux/tracepoint.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tracepoint_probe_register'>
+        <parameter type-id='08e531de'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='tracepoint_probe_unregister' mangled-name='tracepoint_probe_unregister' filepath='kernel/tracepoint.c' line='564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tracepoint_probe_unregister'>
+        <parameter type-id='08e531de' name='tp' filepath='kernel/tracepoint.c' line='564' column='1'/>
+        <parameter type-id='eaa32e2f' name='probe' filepath='kernel/tracepoint.c' line='564' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/tracepoint.c' line='564' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='try_module_get' mangled-name='try_module_get' filepath='include/linux/module.h' line='644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='try_module_get'>
+        <parameter type-id='2730d015'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='try_to_del_timer_sync' mangled-name='try_to_del_timer_sync' filepath='kernel/time/timer.c' line='1229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='try_to_del_timer_sync'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='1229' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='try_wait_for_completion' mangled-name='try_wait_for_completion' filepath='kernel/sched/completion.c' line='282' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='try_wait_for_completion'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='282' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='tty_flip_buffer_push' mangled-name='tty_flip_buffer_push' filepath='drivers/tty/tty_buffer.c' line='557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_flip_buffer_push'>
+        <parameter type-id='ec77b5b8' name='port' filepath='drivers/tty/tty_buffer.c' line='557' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tty_hangup' mangled-name='tty_hangup' filepath='drivers/tty/tty_io.c' line='677' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_hangup'>
+        <parameter type-id='572fbdca' name='tty' filepath='drivers/tty/tty_io.c' line='677' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tty_insert_flip_string_fixed_flag' mangled-name='tty_insert_flip_string_fixed_flag' filepath='drivers/tty/tty_buffer.c' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_insert_flip_string_fixed_flag'>
+        <parameter type-id='ec77b5b8' name='port' filepath='drivers/tty/tty_buffer.c' line='311' column='1'/>
+        <parameter type-id='354f7eb9' name='chars' filepath='drivers/tty/tty_buffer.c' line='312' column='1'/>
+        <parameter type-id='a84c031d' name='flag' filepath='drivers/tty/tty_buffer.c' line='312' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/tty/tty_buffer.c' line='312' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='tty_kref_put' mangled-name='tty_kref_put' filepath='include/linux/tty.h' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_kref_put'>
+        <parameter type-id='572fbdca'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tty_mode_ioctl' mangled-name='tty_mode_ioctl' filepath='drivers/tty/tty_ioctl.c' line='663' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_mode_ioctl'>
+        <parameter type-id='572fbdca' name='tty' filepath='drivers/tty/tty_ioctl.c' line='663' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/tty/tty_ioctl.c' line='663' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='drivers/tty/tty_ioctl.c' line='664' column='1'/>
+        <parameter type-id='7359adad' name='arg' filepath='drivers/tty/tty_ioctl.c' line='664' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='tty_port_tty_get' mangled-name='tty_port_tty_get' filepath='drivers/tty/tty_port.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_port_tty_get'>
+        <parameter type-id='ec77b5b8' name='port' filepath='drivers/tty/tty_port.c' line='283' column='1'/>
+        <return type-id='572fbdca'/>
+      </function-decl>
+      <function-decl name='tty_register_ldisc' mangled-name='tty_register_ldisc' filepath='include/linux/tty.h' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_register_ldisc'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='9d632ac5'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='tty_termios_baud_rate' mangled-name='tty_termios_baud_rate' filepath='include/linux/tty.h' line='529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_termios_baud_rate'>
+        <parameter type-id='e55856e5'/>
+        <return type-id='6a8e8a14'/>
+      </function-decl>
+      <function-decl name='tty_termios_encode_baud_rate' mangled-name='tty_termios_encode_baud_rate' filepath='drivers/tty/tty_baudrate.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_termios_encode_baud_rate'>
+        <parameter type-id='e55856e5' name='termios' filepath='drivers/tty/tty_baudrate.c' line='141' column='1'/>
+        <parameter type-id='6a8e8a14' name='ibaud' filepath='drivers/tty/tty_baudrate.c' line='142' column='1'/>
+        <parameter type-id='6a8e8a14' name='obaud' filepath='drivers/tty/tty_baudrate.c' line='142' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='tty_unregister_ldisc' mangled-name='tty_unregister_ldisc' filepath='drivers/tty/tty_ldisc.c' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_unregister_ldisc'>
+        <parameter type-id='95e97e5e' name='disc' filepath='drivers/tty/tty_ldisc.c' line='90' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='typec_switch_get_drvdata' mangled-name='typec_switch_get_drvdata' filepath='drivers/usb/typec/mux.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_switch_get_drvdata'>
+        <parameter type-id='5d33005f' name='sw' filepath='drivers/usb/typec/mux.c' line='173' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='typec_switch_register' mangled-name='typec_switch_register' filepath='drivers/usb/typec/mux.c' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_switch_register'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/usb/typec/mux.c' line='109' column='1'/>
+        <parameter type-id='e6db9214' name='desc' filepath='drivers/usb/typec/mux.c' line='110' column='1'/>
+        <return type-id='5d33005f'/>
+      </function-decl>
+      <function-decl name='typec_switch_unregister' mangled-name='typec_switch_unregister' filepath='drivers/usb/typec/mux.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='typec_switch_unregister'>
+        <parameter type-id='5d33005f' name='sw' filepath='drivers/usb/typec/mux.c' line='160' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uart_add_one_port' mangled-name='uart_add_one_port' filepath='drivers/tty/serial/serial_core.c' line='2890' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_add_one_port'>
+        <parameter type-id='04a219de' name='drv' filepath='drivers/tty/serial/serial_core.c' line='2890' column='1'/>
+        <parameter type-id='af051c69' name='uport' filepath='drivers/tty/serial/serial_core.c' line='2890' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uart_console_device' mangled-name='uart_console_device' filepath='drivers/tty/serial/serial_core.c' line='2649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_console_device'>
+        <parameter type-id='b9aa0100' name='co' filepath='drivers/tty/serial/serial_core.c' line='2649' column='1'/>
+        <parameter type-id='7292109c' name='index' filepath='drivers/tty/serial/serial_core.c' line='2649' column='1'/>
+        <return type-id='c2b4b27b'/>
+      </function-decl>
+      <function-decl name='uart_console_write' mangled-name='uart_console_write' filepath='include/linux/serial_core.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_console_write'>
+        <parameter type-id='af051c69'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='c6b7d75f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uart_get_baud_rate' mangled-name='uart_get_baud_rate' filepath='drivers/tty/serial/serial_core.c' line='401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_get_baud_rate'>
+        <parameter type-id='af051c69' name='port' filepath='drivers/tty/serial/serial_core.c' line='401' column='1'/>
+        <parameter type-id='e55856e5' name='termios' filepath='drivers/tty/serial/serial_core.c' line='401' column='1'/>
+        <parameter type-id='e55856e5' name='old' filepath='drivers/tty/serial/serial_core.c' line='402' column='1'/>
+        <parameter type-id='f0981eeb' name='min' filepath='drivers/tty/serial/serial_core.c' line='402' column='1'/>
+        <parameter type-id='f0981eeb' name='max' filepath='drivers/tty/serial/serial_core.c' line='402' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='uart_parse_options' mangled-name='uart_parse_options' filepath='drivers/tty/serial/serial_core.c' line='2073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_parse_options'>
+        <parameter type-id='80f4b756' name='options' filepath='drivers/tty/serial/serial_core.c' line='2073' column='1'/>
+        <parameter type-id='7292109c' name='baud' filepath='drivers/tty/serial/serial_core.c' line='2073' column='1'/>
+        <parameter type-id='7292109c' name='parity' filepath='drivers/tty/serial/serial_core.c' line='2073' column='1'/>
+        <parameter type-id='7292109c' name='bits' filepath='drivers/tty/serial/serial_core.c' line='2074' column='1'/>
+        <parameter type-id='7292109c' name='flow' filepath='drivers/tty/serial/serial_core.c' line='2074' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uart_register_driver' mangled-name='uart_register_driver' filepath='drivers/tty/serial/serial_core.c' line='2568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_register_driver'>
+        <parameter type-id='04a219de' name='drv' filepath='drivers/tty/serial/serial_core.c' line='2568' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uart_remove_one_port' mangled-name='uart_remove_one_port' filepath='drivers/tty/serial/serial_core.c' line='2992' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_remove_one_port'>
+        <parameter type-id='04a219de' name='drv' filepath='drivers/tty/serial/serial_core.c' line='2992' column='1'/>
+        <parameter type-id='af051c69' name='uport' filepath='drivers/tty/serial/serial_core.c' line='2992' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uart_resume_port' mangled-name='uart_resume_port' filepath='drivers/tty/serial/serial_core.c' line='2257' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_resume_port'>
+        <parameter type-id='04a219de' name='drv' filepath='drivers/tty/serial/serial_core.c' line='2257' column='1'/>
+        <parameter type-id='af051c69' name='uport' filepath='drivers/tty/serial/serial_core.c' line='2257' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uart_set_options' mangled-name='uart_set_options' filepath='drivers/tty/serial/serial_core.c' line='2100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_set_options'>
+        <parameter type-id='af051c69' name='port' filepath='drivers/tty/serial/serial_core.c' line='2100' column='1'/>
+        <parameter type-id='b9aa0100' name='co' filepath='drivers/tty/serial/serial_core.c' line='2100' column='1'/>
+        <parameter type-id='95e97e5e' name='baud' filepath='drivers/tty/serial/serial_core.c' line='2101' column='1'/>
+        <parameter type-id='95e97e5e' name='parity' filepath='drivers/tty/serial/serial_core.c' line='2101' column='1'/>
+        <parameter type-id='95e97e5e' name='bits' filepath='drivers/tty/serial/serial_core.c' line='2101' column='1'/>
+        <parameter type-id='95e97e5e' name='flow' filepath='drivers/tty/serial/serial_core.c' line='2101' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uart_suspend_port' mangled-name='uart_suspend_port' filepath='drivers/tty/serial/serial_core.c' line='2195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_suspend_port'>
+        <parameter type-id='04a219de' name='drv' filepath='drivers/tty/serial/serial_core.c' line='2195' column='1'/>
+        <parameter type-id='af051c69' name='uport' filepath='drivers/tty/serial/serial_core.c' line='2195' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uart_try_toggle_sysrq' mangled-name='uart_try_toggle_sysrq' filepath='drivers/tty/serial/serial_core.c' line='3210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_try_toggle_sysrq'>
+        <parameter type-id='af051c69' name='port' filepath='drivers/tty/serial/serial_core.c' line='3210' column='1'/>
+        <parameter type-id='f0981eeb' name='ch' filepath='drivers/tty/serial/serial_core.c' line='3210' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='uart_unregister_driver' mangled-name='uart_unregister_driver' filepath='drivers/tty/serial/serial_core.c' line='2635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_unregister_driver'>
+        <parameter type-id='04a219de' name='drv' filepath='drivers/tty/serial/serial_core.c' line='2635' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uart_update_timeout' mangled-name='uart_update_timeout' filepath='drivers/tty/serial/serial_core.c' line='341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_update_timeout'>
+        <parameter type-id='af051c69' name='port' filepath='drivers/tty/serial/serial_core.c' line='341' column='1'/>
+        <parameter type-id='f0981eeb' name='cflag' filepath='drivers/tty/serial/serial_core.c' line='341' column='1'/>
+        <parameter type-id='f0981eeb' name='baud' filepath='drivers/tty/serial/serial_core.c' line='342' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uart_write_wakeup' mangled-name='uart_write_wakeup' filepath='drivers/tty/serial/serial_core.c' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_write_wakeup'>
+        <parameter type-id='af051c69' name='port' filepath='drivers/tty/serial/serial_core.c' line='98' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uclamp_eff_value' mangled-name='uclamp_eff_value' filepath='kernel/sched/core.c' line='1155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uclamp_eff_value'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='1155' column='1'/>
+        <parameter type-id='db819146' name='clamp_id' filepath='kernel/sched/core.c' line='1155' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='udp4_hwcsum' mangled-name='udp4_hwcsum' filepath='net/ipv4/udp.c' line='807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='udp4_hwcsum'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/ipv4/udp.c' line='807' column='1'/>
+        <parameter type-id='78a133c2' name='src' filepath='net/ipv4/udp.c' line='807' column='1'/>
+        <parameter type-id='78a133c2' name='dst' filepath='net/ipv4/udp.c' line='807' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ufshcd_bkops_ctrl' mangled-name='ufshcd_bkops_ctrl' filepath='drivers/scsi/ufs/ufshcd.c' line='5626' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_bkops_ctrl'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='5626' column='1'/>
+        <parameter type-id='462d2624' name='status' filepath='drivers/scsi/ufs/ufshcd.c' line='5627' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_dme_configure_adapt' mangled-name='ufshcd_dme_configure_adapt' filepath='drivers/scsi/ufs/ufshcd.c' line='3821' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_configure_adapt'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3821' column='1'/>
+        <parameter type-id='95e97e5e' name='agreed_gear' filepath='drivers/scsi/ufs/ufshcd.c' line='3822' column='1'/>
+        <parameter type-id='95e97e5e' name='adapt_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3823' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_dme_get_attr' mangled-name='ufshcd_dme_get_attr' filepath='drivers/scsi/ufs/ufshcd.c' line='3945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_get_attr'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3945' column='1'/>
+        <parameter type-id='19c2251e' name='attr_sel' filepath='drivers/scsi/ufs/ufshcd.c' line='3945' column='1'/>
+        <parameter type-id='f9409001' name='mib_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3946' column='1'/>
+        <parameter type-id='f9b06939' name='peer' filepath='drivers/scsi/ufs/ufshcd.c' line='3946' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_dme_set_attr' mangled-name='ufshcd_dme_set_attr' filepath='drivers/scsi/ufs/ufshcd.c' line='3901' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_set_attr'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3901' column='1'/>
+        <parameter type-id='19c2251e' name='attr_sel' filepath='drivers/scsi/ufs/ufshcd.c' line='3901' column='1'/>
+        <parameter type-id='f9b06939' name='attr_set' filepath='drivers/scsi/ufs/ufshcd.c' line='3902' column='1'/>
+        <parameter type-id='19c2251e' name='mib_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3902' column='1'/>
+        <parameter type-id='f9b06939' name='peer' filepath='drivers/scsi/ufs/ufshcd.c' line='3902' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_dump_regs' mangled-name='ufshcd_dump_regs' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dump_regs'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1'/>
+        <parameter type-id='b59d7dce' name='offset' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1'/>
+        <parameter type-id='80f4b756' name='prefix' filepath='drivers/scsi/ufs/ufshcd.c' line='109' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_get_local_unipro_ver' mangled-name='ufshcd_get_local_unipro_ver' filepath='drivers/scsi/ufs/ufshcd.c' line='936' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_get_local_unipro_ver'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='936' column='1'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='ufshcd_get_pwr_dev_param' mangled-name='ufshcd_get_pwr_dev_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_get_pwr_dev_param'>
+        <parameter type-id='9c02cf50' name='pltfrm_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='210' column='1'/>
+        <parameter type-id='35f4156d' name='dev_max' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='211' column='1'/>
+        <parameter type-id='35f4156d' name='agreed_pwr' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='212' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_hold' mangled-name='ufshcd_hold' filepath='drivers/scsi/ufs/ufshcd.c' line='1687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_hold'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='1687' column='1'/>
+        <parameter type-id='b50a4934' name='async' filepath='drivers/scsi/ufs/ufshcd.c' line='1687' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_init_pwr_dev_param' mangled-name='ufshcd_init_pwr_dev_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_init_pwr_dev_param'>
+        <parameter type-id='9c02cf50' name='dev_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='298' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ufshcd_pltfrm_init' mangled-name='ufshcd_pltfrm_init' filepath='drivers/scsi/ufs/ufshcd-pltfrm.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_pltfrm_init'>
+        <parameter type-id='db362995'/>
+        <parameter type-id='52ab0d0f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_pltfrm_shutdown' mangled-name='ufshcd_pltfrm_shutdown' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_pltfrm_shutdown'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='180' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ufshcd_query_attr_retry' mangled-name='ufshcd_query_attr_retry' filepath='drivers/scsi/ufs/ufshcd.c' line='3234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_query_attr_retry'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3234' column='1'/>
+        <parameter type-id='5f757f13' name='opcode' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
+        <parameter type-id='75eb1735' name='idn' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
+        <parameter type-id='f9b06939' name='index' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
+        <parameter type-id='f9b06939' name='selector' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
+        <parameter type-id='f9409001' name='attr_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3236' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_query_flag_retry' mangled-name='ufshcd_query_flag_retry' filepath='drivers/scsi/ufs/ufshcd.c' line='3064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_query_flag_retry'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3064' column='1'/>
+        <parameter type-id='5f757f13' name='opcode' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
+        <parameter type-id='92ace17c' name='idn' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
+        <parameter type-id='f9b06939' name='index' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
+        <parameter type-id='d8e6b335' name='flag_res' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_read_desc_param' mangled-name='ufshcd_read_desc_param' filepath='drivers/scsi/ufs/ufshcd.c' line='3397' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_read_desc_param'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3397' column='1'/>
+        <parameter type-id='32c9d5cb' name='desc_id' filepath='drivers/scsi/ufs/ufshcd.c' line='3398' column='1'/>
+        <parameter type-id='95e97e5e' name='desc_index' filepath='drivers/scsi/ufs/ufshcd.c' line='3399' column='1'/>
+        <parameter type-id='f9b06939' name='param_offset' filepath='drivers/scsi/ufs/ufshcd.c' line='3400' column='1'/>
+        <parameter type-id='8bff8096' name='param_read_buf' filepath='drivers/scsi/ufs/ufshcd.c' line='3401' column='1'/>
+        <parameter type-id='f9b06939' name='param_size' filepath='drivers/scsi/ufs/ufshcd.c' line='3402' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_release' mangled-name='ufshcd_release' filepath='drivers/scsi/ufs/ufshcd.c' line='1866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_release'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='1866' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ufshcd_remove' mangled-name='ufshcd_remove' filepath='drivers/scsi/ufs/ufshcd.c' line='9459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_remove'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='9459' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ufshcd_resume_complete' mangled-name='ufshcd_resume_complete' filepath='drivers/scsi/ufs/ufshcd.c' line='9777' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_resume_complete'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9777' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='ufshcd_runtime_resume' mangled-name='ufshcd_runtime_resume' filepath='drivers/scsi/ufs/ufshcd.c' line='9414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_runtime_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9414' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_runtime_suspend' mangled-name='ufshcd_runtime_suspend' filepath='drivers/scsi/ufs/ufshcd.c' line='9389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_runtime_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9389' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_shutdown' mangled-name='ufshcd_shutdown' filepath='drivers/scsi/ufs/ufshcd.c' line='9439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_shutdown'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='9439' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_suspend_prepare' mangled-name='ufshcd_suspend_prepare' filepath='drivers/scsi/ufs/ufshcd.c' line='9840' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_suspend_prepare'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9840' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_system_resume' mangled-name='ufshcd_system_resume' filepath='drivers/scsi/ufs/ufshcd.c' line='9359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_system_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9359' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_system_suspend' mangled-name='ufshcd_system_suspend' filepath='drivers/scsi/ufs/ufshcd.c' line='9332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_system_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9332' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_uic_hibern8_enter' mangled-name='ufshcd_uic_hibern8_enter' filepath='drivers/scsi/ufs/ufshcd.c' line='4171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_uic_hibern8_enter'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='4171' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ufshcd_uic_hibern8_exit' mangled-name='ufshcd_uic_hibern8_exit' filepath='drivers/scsi/ufs/ufshcd.c' line='4195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_uic_hibern8_exit'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='4195' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='uio_unregister_device' mangled-name='uio_unregister_device' filepath='drivers/uio/uio.c' line='1042' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uio_unregister_device'>
+        <parameter type-id='fb1092f1' name='info' filepath='drivers/uio/uio.c' line='1042' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unlock_page' mangled-name='unlock_page' filepath='include/linux/pagemap.h' line='591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unlock_page'>
+        <parameter type-id='02f11ed4'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unmap_mapping_range' mangled-name='unmap_mapping_range' filepath='include/linux/mm.h' line='1838' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unmap_mapping_range'>
+        <parameter type-id='f57039f0'/>
+        <parameter type-id='bf352dfe'/>
+        <parameter type-id='bf352dfe'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/gup.c' line='252' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_blkdev' mangled-name='unregister_blkdev' filepath='block/genhd.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_blkdev'>
+        <parameter type-id='f0981eeb' name='major' filepath='block/genhd.c' line='504' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='block/genhd.c' line='504' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_candev' mangled-name='unregister_candev' filepath='drivers/net/can/dev/dev.c' line='1301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_candev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='1301' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_chrdev_region' mangled-name='unregister_chrdev_region' filepath='fs/char_dev.c' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_chrdev_region'>
+        <parameter type-id='8504f260' name='from' filepath='fs/char_dev.c' line='311' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='311' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_filesystem' mangled-name='unregister_filesystem' filepath='include/linux/fs.h' line='2361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_filesystem'>
+        <parameter type-id='21e53d44'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_inet6addr_notifier' mangled-name='unregister_inet6addr_notifier' filepath='net/ipv6/addrconf_core.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_inet6addr_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/ipv6/addrconf_core.c' line='101' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_inetaddr_notifier' mangled-name='unregister_inetaddr_notifier' filepath='net/ipv4/devinet.c' line='1457' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_inetaddr_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/ipv4/devinet.c' line='1457' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_netdev' mangled-name='unregister_netdev' filepath='net/core/dev.c' line='10793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10793' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_netdevice_many' mangled-name='unregister_netdevice_many' filepath='include/linux/netdevice.h' line='2913' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_many'>
+        <parameter type-id='e84b031a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_netdevice_notifier' mangled-name='unregister_netdevice_notifier' filepath='include/linux/netdevice.h' line='2744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_notifier'>
+        <parameter type-id='d504f73d'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_netdevice_queue' mangled-name='unregister_netdevice_queue' filepath='include/linux/netdevice.h' line='2912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_queue'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='e84b031a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_netevent_notifier' mangled-name='unregister_netevent_notifier' filepath='net/core/netevent.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netevent_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/core/netevent.c' line='44' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_oom_notifier' mangled-name='unregister_oom_notifier' filepath='mm/oom_kill.c' line='1081' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_oom_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='mm/oom_kill.c' line='1081' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_pernet_device' mangled-name='unregister_pernet_device' filepath='include/net/net_namespace.h' line='422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_pernet_device'>
+        <parameter type-id='d6907f4c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_pernet_subsys' mangled-name='unregister_pernet_subsys' filepath='net/core/net_namespace.c' line='1295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_pernet_subsys'>
+        <parameter type-id='d6907f4c' name='ops' filepath='net/core/net_namespace.c' line='1295' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_pm_notifier' mangled-name='unregister_pm_notifier' filepath='kernel/power/main.c' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_pm_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/power/main.c' line='77' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_reboot_notifier' mangled-name='unregister_reboot_notifier' filepath='kernel/reboot.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_reboot_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/reboot.c' line='106' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_restart_handler' mangled-name='unregister_restart_handler' filepath='kernel/reboot.c' line='198' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_restart_handler'>
+        <parameter type-id='d504f73d' name='nb' filepath='kernel/reboot.c' line='198' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='unregister_rpmsg_driver' mangled-name='unregister_rpmsg_driver' filepath='drivers/rpmsg/rpmsg_core.c' line='630' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_rpmsg_driver'>
+        <parameter type-id='7331a99f' name='rpdrv' filepath='drivers/rpmsg/rpmsg_core.c' line='630' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_shrinker' mangled-name='unregister_shrinker' filepath='mm/vmscan.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_shrinker'>
+        <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='424' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_syscore_ops' mangled-name='unregister_syscore_ops' filepath='include/linux/syscore_ops.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_syscore_ops'>
+        <parameter type-id='cbd24a98'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_sysctl_table' mangled-name='unregister_sysctl_table' filepath='include/linux/sysctl.h' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_sysctl_table'>
+        <parameter type-id='11b101bb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_virtio_device' mangled-name='unregister_virtio_device' filepath='drivers/virtio/virtio.c' line='393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_virtio_device'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='393' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_virtio_driver' mangled-name='unregister_virtio_driver' filepath='drivers/virtio/virtio.c' line='329' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_virtio_driver'>
+        <parameter type-id='f350dc99' name='driver' filepath='drivers/virtio/virtio.c' line='329' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='unregister_vmap_purge_notifier' mangled-name='unregister_vmap_purge_notifier' filepath='mm/vmalloc.c' line='1276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_vmap_purge_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='mm/vmalloc.c' line='1276' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='up' mangled-name='up' filepath='kernel/locking/semaphore.c' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up'>
+        <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='178' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='up_read' mangled-name='up_read' filepath='include/linux/rwsem.h' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up_read'>
+        <parameter type-id='9b58df93'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='up_write' mangled-name='up_write' filepath='include/linux/rwsem.h' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up_write'>
+        <parameter type-id='9b58df93'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='update_devfreq' mangled-name='update_devfreq' filepath='drivers/devfreq/devfreq.c' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='update_devfreq'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='394' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='update_rq_clock' mangled-name='update_rq_clock' filepath='kernel/sched/core.c' line='316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='update_rq_clock'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/core.c' line='316' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_add_function' mangled-name='usb_add_function' filepath='drivers/usb/gadget/composite.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_add_function'>
+        <parameter type-id='ee27b7c6' name='config' filepath='drivers/usb/gadget/composite.c' line='301' column='1'/>
+        <parameter type-id='e5411c2c' name='function' filepath='drivers/usb/gadget/composite.c' line='302' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_add_hcd' mangled-name='usb_add_hcd' filepath='drivers/usb/core/hcd.c' line='2659' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_add_hcd'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2659' column='1'/>
+        <parameter type-id='f0981eeb' name='irqnum' filepath='drivers/usb/core/hcd.c' line='2660' column='1'/>
+        <parameter type-id='7359adad' name='irqflags' filepath='drivers/usb/core/hcd.c' line='2660' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_alloc_coherent' mangled-name='usb_alloc_coherent' filepath='drivers/usb/core/usb.c' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_alloc_coherent'>
+        <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='924' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/usb/core/usb.c' line='924' column='1'/>
+        <parameter type-id='3eb7c31c' name='mem_flags' filepath='drivers/usb/core/usb.c' line='924' column='1'/>
+        <parameter type-id='e835b5d8' name='dma' filepath='drivers/usb/core/usb.c' line='925' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='usb_alloc_urb' mangled-name='usb_alloc_urb' filepath='include/linux/usb.h' line='1751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_alloc_urb'>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='ab85b8f2'/>
+      </function-decl>
+      <function-decl name='usb_amd_dev_put' mangled-name='usb_amd_dev_put' filepath='drivers/usb/host/pci-quirks.c' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_dev_put'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_amd_prefetch_quirk' mangled-name='usb_amd_prefetch_quirk' filepath='drivers/usb/host/pci-quirks.c' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_prefetch_quirk'>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='usb_amd_quirk_pll_check' mangled-name='usb_amd_quirk_pll_check' filepath='drivers/usb/host/pci-quirks.c' line='323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_quirk_pll_check'>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='usb_amd_quirk_pll_disable' mangled-name='usb_amd_quirk_pll_disable' filepath='drivers/usb/host/pci-quirks.c' line='457' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_quirk_pll_disable'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_amd_quirk_pll_enable' mangled-name='usb_amd_quirk_pll_enable' filepath='drivers/usb/host/pci-quirks.c' line='507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_quirk_pll_enable'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_anchor_urb' mangled-name='usb_anchor_urb' filepath='include/linux/usb.h' line='1767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_anchor_urb'>
+        <parameter type-id='ab85b8f2'/>
+        <parameter type-id='bd300bf3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_autopm_get_interface' mangled-name='usb_autopm_get_interface' filepath='include/linux/usb.h' line='788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_get_interface'>
+        <parameter type-id='8bf48c31'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_autopm_put_interface' mangled-name='usb_autopm_put_interface' filepath='include/linux/usb.h' line='789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_put_interface'>
+        <parameter type-id='8bf48c31'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_bulk_msg' mangled-name='usb_bulk_msg' filepath='drivers/usb/core/message.c' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_bulk_msg'>
+        <parameter type-id='25e60cb2' name='usb_dev' filepath='drivers/usb/core/message.c' line='367' column='1'/>
+        <parameter type-id='f0981eeb' name='pipe' filepath='drivers/usb/core/message.c' line='367' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/usb/core/message.c' line='368' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/usb/core/message.c' line='368' column='1'/>
+        <parameter type-id='7292109c' name='actual_length' filepath='drivers/usb/core/message.c' line='368' column='1'/>
+        <parameter type-id='95e97e5e' name='timeout' filepath='drivers/usb/core/message.c' line='368' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_calc_bus_time' mangled-name='usb_calc_bus_time' filepath='drivers/usb/core/hcd.c' line='1093' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_calc_bus_time'>
+        <parameter type-id='95e97e5e' name='speed' filepath='drivers/usb/core/hcd.c' line='1093' column='1'/>
+        <parameter type-id='95e97e5e' name='is_input' filepath='drivers/usb/core/hcd.c' line='1093' column='1'/>
+        <parameter type-id='95e97e5e' name='isoc' filepath='drivers/usb/core/hcd.c' line='1093' column='1'/>
+        <parameter type-id='95e97e5e' name='bytecount' filepath='drivers/usb/core/hcd.c' line='1093' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='usb_control_msg' mangled-name='usb_control_msg' filepath='include/linux/usb.h' line='1829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_control_msg'>
+        <parameter type-id='25e60cb2'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='8f048e17'/>
+        <parameter type-id='8f048e17'/>
+        <parameter type-id='d315442e'/>
+        <parameter type-id='d315442e'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='d315442e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_copy_descriptors' mangled-name='usb_copy_descriptors' filepath='drivers/usb/gadget/config.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_copy_descriptors'>
+        <parameter type-id='f363a725' name='src' filepath='drivers/usb/gadget/config.c' line='122' column='1'/>
+        <return type-id='f363a725'/>
+      </function-decl>
+      <function-decl name='usb_create_hcd' mangled-name='usb_create_hcd' filepath='drivers/usb/core/hcd.c' line='2536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_create_hcd'>
+        <parameter type-id='5aa12c86' name='driver' filepath='drivers/usb/core/hcd.c' line='2536' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/core/hcd.c' line='2537' column='1'/>
+        <parameter type-id='80f4b756' name='bus_name' filepath='drivers/usb/core/hcd.c' line='2537' column='1'/>
+        <return type-id='fc4f83c1'/>
+      </function-decl>
+      <function-decl name='usb_create_shared_hcd' mangled-name='usb_create_shared_hcd' filepath='drivers/usb/core/hcd.c' line='2514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_create_shared_hcd'>
+        <parameter type-id='5aa12c86' name='driver' filepath='drivers/usb/core/hcd.c' line='2514' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/core/hcd.c' line='2515' column='1'/>
+        <parameter type-id='80f4b756' name='bus_name' filepath='drivers/usb/core/hcd.c' line='2515' column='1'/>
+        <parameter type-id='fc4f83c1' name='primary_hcd' filepath='drivers/usb/core/hcd.c' line='2516' column='1'/>
+        <return type-id='fc4f83c1'/>
+      </function-decl>
+      <function-decl name='usb_deregister' mangled-name='usb_deregister' filepath='include/linux/usb.h' line='1320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_deregister'>
+        <parameter type-id='46ae908a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_disabled' mangled-name='usb_disabled' filepath='drivers/usb/core/usb.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_disabled'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_driver_claim_interface' mangled-name='usb_driver_claim_interface' filepath='include/linux/usb.h' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_driver_claim_interface'>
+        <parameter type-id='46ae908a'/>
+        <parameter type-id='8bf48c31'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_driver_release_interface' mangled-name='usb_driver_release_interface' filepath='include/linux/usb.h' line='885' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_driver_release_interface'>
+        <parameter type-id='46ae908a'/>
+        <parameter type-id='8bf48c31'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_enable_autosuspend' mangled-name='usb_enable_autosuspend' filepath='drivers/usb/core/driver.c' line='1649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_enable_autosuspend'>
+        <parameter type-id='25e60cb2' name='udev' filepath='drivers/usb/core/driver.c' line='1649' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_ep_alloc_request' mangled-name='usb_ep_alloc_request' filepath='include/linux/usb/gadget.h' line='258' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_alloc_request'>
+        <parameter type-id='63a08bf7'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='1a494567'/>
+      </function-decl>
+      <function-decl name='usb_ep_autoconfig' mangled-name='usb_ep_autoconfig' filepath='drivers/usb/gadget/epautoconf.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_autoconfig'>
+        <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/epautoconf.c' line='150' column='1'/>
+        <parameter type-id='a07d0491' name='desc' filepath='drivers/usb/gadget/epautoconf.c' line='151' column='1'/>
+        <return type-id='63a08bf7'/>
+      </function-decl>
+      <function-decl name='usb_ep_clear_halt' mangled-name='usb_ep_clear_halt' filepath='drivers/usb/gadget/udc/core.c' line='369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_clear_halt'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='369' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_ep_dequeue' mangled-name='usb_ep_dequeue' filepath='include/linux/usb/gadget.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_dequeue'>
+        <parameter type-id='63a08bf7'/>
+        <parameter type-id='1a494567'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_ep_disable' mangled-name='usb_ep_disable' filepath='drivers/usb/gadget/udc/core.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_disable'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='141' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_ep_enable' mangled-name='usb_ep_enable' filepath='drivers/usb/gadget/udc/core.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_enable'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='96' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_ep_fifo_flush' mangled-name='usb_ep_fifo_flush' filepath='drivers/usb/gadget/udc/core.c' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_fifo_flush'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='450' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_ep_fifo_status' mangled-name='usb_ep_fifo_status' filepath='drivers/usb/gadget/udc/core.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_fifo_status'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='424' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_ep_free_request' mangled-name='usb_ep_free_request' filepath='include/linux/usb/gadget.h' line='259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_free_request'>
+        <parameter type-id='63a08bf7'/>
+        <parameter type-id='1a494567'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_ep_queue' mangled-name='usb_ep_queue' filepath='include/linux/usb/gadget.h' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_queue'>
+        <parameter type-id='63a08bf7'/>
+        <parameter type-id='1a494567'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_ep_set_halt' mangled-name='usb_ep_set_halt' filepath='drivers/usb/gadget/udc/core.c' line='343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_set_halt'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='343' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_free_coherent' mangled-name='usb_free_coherent' filepath='drivers/usb/core/usb.c' line='944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_coherent'>
+        <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='944' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/usb/core/usb.c' line='944' column='1'/>
+        <parameter type-id='eaa32e2f' name='addr' filepath='drivers/usb/core/usb.c' line='944' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma' filepath='drivers/usb/core/usb.c' line='945' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_free_urb' mangled-name='usb_free_urb' filepath='include/linux/usb.h' line='1752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_urb'>
+        <parameter type-id='ab85b8f2'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_function_register' mangled-name='usb_function_register' filepath='drivers/usb/gadget/functions.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_function_register'>
+        <parameter type-id='f666bcc1' name='newf' filepath='drivers/usb/gadget/functions.c' line='91' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_function_unregister' mangled-name='usb_function_unregister' filepath='drivers/usb/gadget/functions.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_function_unregister'>
+        <parameter type-id='f666bcc1' name='fd' filepath='drivers/usb/gadget/functions.c' line='111' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_gadget_probe_driver' mangled-name='usb_gadget_probe_driver' filepath='include/linux/usb/gadget.h' line='775' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_probe_driver'>
+        <parameter type-id='9762ede1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_gadget_set_state' mangled-name='usb_gadget_set_state' filepath='include/linux/usb/gadget.h' line='900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_set_state'>
+        <parameter type-id='49a58c0c'/>
+        <parameter type-id='901a91cb'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_gadget_unregister_driver' mangled-name='usb_gadget_unregister_driver' filepath='include/linux/usb/gadget.h' line='790' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_unregister_driver'>
+        <parameter type-id='9762ede1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_gadget_vbus_draw' mangled-name='usb_gadget_vbus_draw' filepath='include/linux/usb/gadget.h' line='623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_vbus_draw'>
+        <parameter type-id='49a58c0c'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_get_dev' mangled-name='usb_get_dev' filepath='drivers/usb/core/usb.c' line='694' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_dev'>
+        <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='694' column='1'/>
+        <return type-id='25e60cb2'/>
+      </function-decl>
+      <function-decl name='usb_get_from_anchor' mangled-name='usb_get_from_anchor' filepath='include/linux/usb.h' line='1771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_from_anchor'>
+        <parameter type-id='bd300bf3'/>
+        <return type-id='ab85b8f2'/>
+      </function-decl>
+      <function-decl name='usb_get_gadget_udc_name' mangled-name='usb_get_gadget_udc_name' filepath='drivers/usb/gadget/udc/core.c' line='1393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_gadget_udc_name'>
+        <return type-id='26a90f95'/>
+      </function-decl>
+      <function-decl name='usb_hc_died' mangled-name='usb_hc_died' filepath='drivers/usb/core/hcd.c' line='2385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hc_died'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2385' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_check_unlink_urb' mangled-name='usb_hcd_check_unlink_urb' filepath='drivers/usb/core/hcd.c' line='1210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_check_unlink_urb'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1210' column='1'/>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1210' column='1'/>
+        <parameter type-id='95e97e5e' name='status' filepath='drivers/usb/core/hcd.c' line='1211' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_hcd_giveback_urb' mangled-name='usb_hcd_giveback_urb' filepath='drivers/usb/core/hcd.c' line='1734' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_giveback_urb'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1734' column='1'/>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1734' column='1'/>
+        <parameter type-id='95e97e5e' name='status' filepath='drivers/usb/core/hcd.c' line='1734' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_is_primary_hcd' mangled-name='usb_hcd_is_primary_hcd' filepath='drivers/usb/core/hcd.c' line='2585' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_is_primary_hcd'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2585' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_hcd_link_urb_to_ep' mangled-name='usb_hcd_link_urb_to_ep' filepath='drivers/usb/core/hcd.c' line='1152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_link_urb_to_ep'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1152' column='1'/>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1152' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='usb_hcd_pci_pm_ops' type-id='86af1d10' mangled-name='usb_hcd_pci_pm_ops' visibility='default' filepath='drivers/usb/core/hcd-pci.c' line='612' column='1' elf-symbol-id='usb_hcd_pci_pm_ops'/>
+      <function-decl name='usb_hcd_pci_probe' mangled-name='usb_hcd_pci_probe' filepath='drivers/usb/core/hcd-pci.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_pci_probe'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/usb/core/hcd-pci.c' line='173' column='1'/>
+        <parameter type-id='92fc8aa5' name='id' filepath='drivers/usb/core/hcd-pci.c' line='173' column='1'/>
+        <parameter type-id='5aa12c86' name='driver' filepath='drivers/usb/core/hcd-pci.c' line='174' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_hcd_pci_remove' mangled-name='usb_hcd_pci_remove' filepath='drivers/usb/core/hcd-pci.c' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_pci_remove'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/usb/core/hcd-pci.c' line='315' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_pci_shutdown' mangled-name='usb_hcd_pci_shutdown' filepath='drivers/usb/core/hcd-pci.c' line='363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_pci_shutdown'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/usb/core/hcd-pci.c' line='363' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_platform_shutdown' mangled-name='usb_hcd_platform_shutdown' filepath='drivers/usb/core/hcd.c' line='2934' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_platform_shutdown'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/usb/core/hcd.c' line='2934' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_poll_rh_status' mangled-name='usb_hcd_poll_rh_status' filepath='drivers/usb/core/hcd.c' line='753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_poll_rh_status'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='753' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_resume_root_hub' mangled-name='usb_hcd_resume_root_hub' filepath='drivers/usb/core/hcd.c' line='2275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_resume_root_hub'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2275' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_hcd_unlink_urb_from_ep' mangled-name='usb_hcd_unlink_urb_from_ep' filepath='drivers/usb/core/hcd.c' line='1243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hcd_unlink_urb_from_ep'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='1243' column='1'/>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/hcd.c' line='1243' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='usb_hcds_loaded' type-id='7359adad' mangled-name='usb_hcds_loaded' visibility='default' filepath='drivers/usb/core/hcd.c' line='81' column='1' elf-symbol-id='usb_hcds_loaded'/>
+      <function-decl name='usb_hub_find_child' mangled-name='usb_hub_find_child' filepath='drivers/usb/core/hub.c' line='6120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hub_find_child'>
+        <parameter type-id='25e60cb2' name='hdev' filepath='drivers/usb/core/hub.c' line='6120' column='1'/>
+        <parameter type-id='95e97e5e' name='port1' filepath='drivers/usb/core/hub.c' line='6121' column='1'/>
+        <return type-id='25e60cb2'/>
+      </function-decl>
+      <function-decl name='usb_ifnum_to_if' mangled-name='usb_ifnum_to_if' filepath='include/linux/usb.h' line='895' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ifnum_to_if'>
+        <parameter type-id='ca2b80c9'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='8bf48c31'/>
+      </function-decl>
+      <function-decl name='usb_interface_id' mangled-name='usb_interface_id' filepath='drivers/usb/gadget/composite.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_interface_id'>
+        <parameter type-id='ee27b7c6' name='config' filepath='drivers/usb/gadget/composite.c' line='466' column='1'/>
+        <parameter type-id='e5411c2c' name='function' filepath='drivers/usb/gadget/composite.c' line='467' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_kill_anchored_urbs' mangled-name='usb_kill_anchored_urbs' filepath='drivers/usb/core/urb.c' line='812' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_kill_anchored_urbs'>
+        <parameter type-id='bd300bf3' name='anchor' filepath='drivers/usb/core/urb.c' line='812' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_match_id' mangled-name='usb_match_id' filepath='drivers/usb/core/driver.c' line='807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_match_id'>
+        <parameter type-id='8bf48c31' name='interface' filepath='drivers/usb/core/driver.c' line='807' column='1'/>
+        <parameter type-id='bc57058f' name='id' filepath='drivers/usb/core/driver.c' line='808' column='1'/>
+        <return type-id='bc57058f'/>
+      </function-decl>
+      <function-decl name='usb_otg_state_string' mangled-name='usb_otg_state_string' filepath='drivers/usb/common/common.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_otg_state_string'>
+        <parameter type-id='4c0c8157' name='state' filepath='drivers/usb/common/common.c' line='43' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='usb_put_dev' mangled-name='usb_put_dev' filepath='drivers/usb/core/usb.c' line='709' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_dev'>
+        <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='709' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_put_function_instance' mangled-name='usb_put_function_instance' filepath='drivers/usb/gadget/functions.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_function_instance'>
+        <parameter type-id='6614aa5e' name='fi' filepath='drivers/usb/gadget/functions.c' line='69' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_put_hcd' mangled-name='usb_put_hcd' filepath='include/linux/usb/hcd.h' line='476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_hcd'>
+        <parameter type-id='fc4f83c1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_queue_reset_device' mangled-name='usb_queue_reset_device' filepath='include/linux/usb.h' line='768' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_queue_reset_device'>
+        <parameter type-id='8bf48c31'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_register_driver' mangled-name='usb_register_driver' filepath='include/linux/usb.h' line='1313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_driver'>
+        <parameter type-id='46ae908a'/>
+        <parameter type-id='2730d015'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_register_notify' mangled-name='usb_register_notify' filepath='drivers/usb/core/notify.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_notify'>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/usb/core/notify.c' line='29' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_remove_hcd' mangled-name='usb_remove_hcd' filepath='drivers/usb/core/hcd.c' line='2866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_remove_hcd'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2866' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_role_switch_get' mangled-name='usb_role_switch_get' filepath='include/linux/usb/role.h' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_get'>
+        <parameter type-id='fa0b179b'/>
+        <return type-id='3e3cd44f'/>
+      </function-decl>
+      <function-decl name='usb_role_switch_get_drvdata' mangled-name='usb_role_switch_get_drvdata' filepath='drivers/usb/roles/class.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_get_drvdata'>
+        <parameter type-id='3e3cd44f' name='sw' filepath='drivers/usb/roles/class.c' line='376' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='usb_role_switch_put' mangled-name='usb_role_switch_put' filepath='include/linux/usb/role.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_put'>
+        <parameter type-id='3e3cd44f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_role_switch_register' mangled-name='usb_role_switch_register' filepath='include/linux/usb/role.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_register'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='143d32b2'/>
+        <return type-id='3e3cd44f'/>
+      </function-decl>
+      <function-decl name='usb_role_switch_set_role' mangled-name='usb_role_switch_set_role' filepath='include/linux/usb/role.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_set_role'>
+        <parameter type-id='3e3cd44f'/>
+        <parameter type-id='c675b073'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_role_switch_unregister' mangled-name='usb_role_switch_unregister' filepath='include/linux/usb/role.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_unregister'>
+        <parameter type-id='3e3cd44f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_root_hub_lost_power' mangled-name='usb_root_hub_lost_power' filepath='drivers/usb/core/hub.c' line='3848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_root_hub_lost_power'>
+        <parameter type-id='25e60cb2' name='rhdev' filepath='drivers/usb/core/hub.c' line='3848' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_scuttle_anchored_urbs' mangled-name='usb_scuttle_anchored_urbs' filepath='include/linux/usb.h' line='1772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_scuttle_anchored_urbs'>
+        <parameter type-id='bd300bf3'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_set_interface' mangled-name='usb_set_interface' filepath='include/linux/usb.h' line='1871' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_set_interface'>
+        <parameter type-id='25e60cb2'/>
+        <parameter type-id='95e97e5e'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_speed_string' mangled-name='usb_speed_string' filepath='drivers/usb/common/common.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_speed_string'>
+        <parameter type-id='4e532009' name='speed' filepath='drivers/usb/common/common.c' line='91' column='1'/>
+        <return type-id='80f4b756'/>
+      </function-decl>
+      <function-decl name='usb_string_id' mangled-name='usb_string_id' filepath='drivers/usb/gadget/composite.c' line='1275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_string_id'>
+        <parameter type-id='2a895c01' name='cdev' filepath='drivers/usb/gadget/composite.c' line='1275' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_submit_urb' mangled-name='usb_submit_urb' filepath='include/linux/usb.h' line='1755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_submit_urb'>
+        <parameter type-id='ab85b8f2'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usb_unanchor_urb' mangled-name='usb_unanchor_urb' filepath='include/linux/usb.h' line='1768' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unanchor_urb'>
+        <parameter type-id='ab85b8f2'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usb_unregister_notify' mangled-name='usb_unregister_notify' filepath='drivers/usb/core/notify.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unregister_notify'>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/usb/core/notify.c' line='42' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_disconnect' mangled-name='usbnet_disconnect' filepath='drivers/net/usb/usbnet.c' line='1567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_disconnect'>
+        <parameter type-id='8bf48c31' name='intf' filepath='drivers/net/usb/usbnet.c' line='1567' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_get_endpoints' mangled-name='usbnet_get_endpoints' filepath='include/linux/usb/usbnet.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_get_endpoints'>
+        <parameter type-id='12884b9a'/>
+        <parameter type-id='8bf48c31'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_get_msglevel' mangled-name='usbnet_get_msglevel' filepath='drivers/net/usb/usbnet.c' line='1031' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_get_msglevel'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='1031' column='1'/>
+        <return type-id='19c2251e'/>
+      </function-decl>
+      <function-decl name='usbnet_get_stats64' mangled-name='usbnet_get_stats64' filepath='drivers/net/usb/usbnet.c' line='983' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_get_stats64'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='983' column='1'/>
+        <parameter type-id='bd3860fe' name='stats' filepath='drivers/net/usb/usbnet.c' line='983' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_link_change' mangled-name='usbnet_link_change' filepath='include/linux/usb/usbnet.h' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_link_change'>
+        <parameter type-id='12884b9a'/>
+        <parameter type-id='b50a4934'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_nway_reset' mangled-name='usbnet_nway_reset' filepath='drivers/net/usb/usbnet.c' line='1009' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_nway_reset'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='1009' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_open' mangled-name='usbnet_open' filepath='drivers/net/usb/usbnet.c' line='858' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_open'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='858' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_probe' mangled-name='usbnet_probe' filepath='drivers/net/usb/usbnet.c' line='1629' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_probe'>
+        <parameter type-id='8bf48c31' name='udev' filepath='drivers/net/usb/usbnet.c' line='1629' column='1'/>
+        <parameter type-id='bc57058f' name='prod' filepath='drivers/net/usb/usbnet.c' line='1629' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_read_cmd' mangled-name='usbnet_read_cmd' filepath='drivers/net/usb/usbnet.c' line='2028' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_read_cmd'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='2028' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='drivers/net/usb/usbnet.c' line='2028' column='1'/>
+        <parameter type-id='f9b06939' name='reqtype' filepath='drivers/net/usb/usbnet.c' line='2028' column='1'/>
+        <parameter type-id='1dc6a898' name='value' filepath='drivers/net/usb/usbnet.c' line='2029' column='1'/>
+        <parameter type-id='1dc6a898' name='index' filepath='drivers/net/usb/usbnet.c' line='2029' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/net/usb/usbnet.c' line='2029' column='1'/>
+        <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2029' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_read_cmd_nopm' mangled-name='usbnet_read_cmd_nopm' filepath='drivers/net/usb/usbnet.c' line='2064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_read_cmd_nopm'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='2064' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='drivers/net/usb/usbnet.c' line='2064' column='1'/>
+        <parameter type-id='f9b06939' name='reqtype' filepath='drivers/net/usb/usbnet.c' line='2064' column='1'/>
+        <parameter type-id='1dc6a898' name='value' filepath='drivers/net/usb/usbnet.c' line='2065' column='1'/>
+        <parameter type-id='1dc6a898' name='index' filepath='drivers/net/usb/usbnet.c' line='2065' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/net/usb/usbnet.c' line='2065' column='1'/>
+        <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2065' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_resume' mangled-name='usbnet_resume' filepath='include/linux/usb/usbnet.h' line='193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_resume'>
+        <parameter type-id='8bf48c31'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_set_msglevel' mangled-name='usbnet_set_msglevel' filepath='drivers/net/usb/usbnet.c' line='1039' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_set_msglevel'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='1039' column='1'/>
+        <parameter type-id='19c2251e' name='level' filepath='drivers/net/usb/usbnet.c' line='1039' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_skb_return' mangled-name='usbnet_skb_return' filepath='include/linux/usb/usbnet.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_skb_return'>
+        <parameter type-id='12884b9a'/>
+        <parameter type-id='0fbf3cfd'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_start_xmit' mangled-name='usbnet_start_xmit' filepath='drivers/net/usb/usbnet.c' line='1321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_start_xmit'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='drivers/net/usb/usbnet.c' line='1321' column='1'/>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='1322' column='1'/>
+        <return type-id='6849a88c'/>
+      </function-decl>
+      <function-decl name='usbnet_stop' mangled-name='usbnet_stop' filepath='drivers/net/usb/usbnet.c' line='796' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_stop'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='796' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_suspend' mangled-name='usbnet_suspend' filepath='include/linux/usb/usbnet.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_suspend'>
+        <parameter type-id='8bf48c31'/>
+        <parameter type-id='08496218'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_tx_timeout' mangled-name='usbnet_tx_timeout' filepath='drivers/net/usb/usbnet.c' line='1271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_tx_timeout'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='1271' column='1'/>
+        <parameter type-id='f0981eeb' name='txqueue' filepath='drivers/net/usb/usbnet.c' line='1271' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_update_max_qlen' mangled-name='usbnet_update_max_qlen' filepath='include/linux/usb/usbnet.h' line='297' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_update_max_qlen'>
+        <parameter type-id='12884b9a'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='usbnet_write_cmd' mangled-name='usbnet_write_cmd' filepath='drivers/net/usb/usbnet.c' line='2046' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='2046' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='drivers/net/usb/usbnet.c' line='2046' column='1'/>
+        <parameter type-id='f9b06939' name='reqtype' filepath='drivers/net/usb/usbnet.c' line='2046' column='1'/>
+        <parameter type-id='1dc6a898' name='value' filepath='drivers/net/usb/usbnet.c' line='2047' column='1'/>
+        <parameter type-id='1dc6a898' name='index' filepath='drivers/net/usb/usbnet.c' line='2047' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/net/usb/usbnet.c' line='2047' column='1'/>
+        <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2047' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_write_cmd_async' mangled-name='usbnet_write_cmd_async' filepath='include/linux/usb/usbnet.h' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd_async'>
+        <parameter type-id='12884b9a'/>
+        <parameter type-id='f9b06939'/>
+        <parameter type-id='f9b06939'/>
+        <parameter type-id='1dc6a898'/>
+        <parameter type-id='1dc6a898'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='1dc6a898'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usbnet_write_cmd_nopm' mangled-name='usbnet_write_cmd_nopm' filepath='drivers/net/usb/usbnet.c' line='2076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd_nopm'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='2076' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='drivers/net/usb/usbnet.c' line='2076' column='1'/>
+        <parameter type-id='f9b06939' name='reqtype' filepath='drivers/net/usb/usbnet.c' line='2076' column='1'/>
+        <parameter type-id='1dc6a898' name='value' filepath='drivers/net/usb/usbnet.c' line='2077' column='1'/>
+        <parameter type-id='1dc6a898' name='index' filepath='drivers/net/usb/usbnet.c' line='2077' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/net/usb/usbnet.c' line='2077' column='1'/>
+        <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2078' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='usleep_range' mangled-name='usleep_range' filepath='include/linux/delay.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usleep_range'>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='uuid_gen' mangled-name='uuid_gen' filepath='include/linux/uuid.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uuid_gen'>
+        <parameter type-id='f1397309'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='uuid_null' type-id='21109a44' mangled-name='uuid_null' visibility='default' filepath='lib/uuid.c' line='18' column='1' elf-symbol-id='uuid_null'/>
+      <function-decl name='v4l2_ctrl_handler_free' mangled-name='v4l2_ctrl_handler_free' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2470' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_ctrl_handler_free'>
+        <parameter type-id='2b59fa5e' name='hdl' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2470' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_ctrl_handler_init_class' mangled-name='v4l2_ctrl_handler_init_class' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_ctrl_handler_init_class'>
+        <parameter type-id='2b59fa5e' name='hdl' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2447' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_of_controls_hint' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2448' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2449' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2449' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_ctrl_log_status' mangled-name='v4l2_ctrl_log_status' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='4773' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_ctrl_log_status'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='4773' column='1'/>
+        <parameter type-id='eaa32e2f' name='fh' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='4773' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_ctrl_new_custom' mangled-name='v4l2_ctrl_new_custom' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2882' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_ctrl_new_custom'>
+        <parameter type-id='2b59fa5e' name='hdl' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2882' column='1'/>
+        <parameter type-id='45c81897' name='cfg' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2883' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2883' column='1'/>
+        <return type-id='4b8b2cf3'/>
+      </function-decl>
+      <function-decl name='v4l2_ctrl_new_std' mangled-name='v4l2_ctrl_new_std' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_ctrl_new_std'>
+        <parameter type-id='2b59fa5e' name='hdl' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2926' column='1'/>
+        <parameter type-id='1086b623' name='ops' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2927' column='1'/>
+        <parameter type-id='19c2251e' name='id' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2928' column='1'/>
+        <parameter type-id='9b7c55ef' name='min' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2928' column='1'/>
+        <parameter type-id='9b7c55ef' name='max' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2928' column='1'/>
+        <parameter type-id='91ce1af9' name='step' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2928' column='1'/>
+        <parameter type-id='9b7c55ef' name='def' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2928' column='1'/>
+        <return type-id='4b8b2cf3'/>
+      </function-decl>
+      <function-decl name='v4l2_ctrl_new_std_menu' mangled-name='v4l2_ctrl_new_std_menu' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2948' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_ctrl_new_std_menu'>
+        <parameter type-id='2b59fa5e' name='hdl' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2948' column='1'/>
+        <parameter type-id='1086b623' name='ops' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2949' column='1'/>
+        <parameter type-id='19c2251e' name='id' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2950' column='1'/>
+        <parameter type-id='f9b06939' name='_max' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2950' column='1'/>
+        <parameter type-id='91ce1af9' name='mask' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2950' column='1'/>
+        <parameter type-id='f9b06939' name='_def' filepath='drivers/media/v4l2-core/v4l2-ctrls.c' line='2950' column='1'/>
+        <return type-id='4b8b2cf3'/>
+      </function-decl>
+      <function-decl name='v4l2_device_register' mangled-name='v4l2_device_register' filepath='drivers/media/v4l2-core/v4l2-device.c' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_device_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/media/v4l2-core/v4l2-device.c' line='17' column='1'/>
+        <parameter type-id='ddfb71fa' name='v4l2_dev' filepath='drivers/media/v4l2-core/v4l2-device.c' line='17' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_device_unregister' mangled-name='v4l2_device_unregister' filepath='drivers/media/v4l2-core/v4l2-device.c' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_device_unregister'>
+        <parameter type-id='ddfb71fa' name='v4l2_dev' filepath='drivers/media/v4l2-core/v4l2-device.c' line='88' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_fh_add' mangled-name='v4l2_fh_add' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_fh_add'>
+        <parameter type-id='b7db9582' name='fh' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='44' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_fh_del' mangled-name='v4l2_fh_del' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_fh_del'>
+        <parameter type-id='b7db9582' name='fh' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='69' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_fh_exit' mangled-name='v4l2_fh_exit' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_fh_exit'>
+        <parameter type-id='b7db9582' name='fh' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='80' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_fh_init' mangled-name='v4l2_fh_init' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_fh_init'>
+        <parameter type-id='b7db9582' name='fh' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='21' column='1'/>
+        <parameter type-id='798c29b7' name='vdev' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='21' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_fh_open' mangled-name='v4l2_fh_open' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_fh_open'>
+        <parameter type-id='77e79a4b' name='filp' filepath='drivers/media/v4l2-core/v4l2-fh.c' line='55' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_buf_queue' mangled-name='v4l2_m2m_buf_queue' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_buf_queue'>
+        <parameter type-id='2c7f1dc4' name='m2m_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1214' column='1'/>
+        <parameter type-id='9a42d4cd' name='vbuf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1215' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_buf_remove' mangled-name='v4l2_m2m_buf_remove' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_buf_remove'>
+        <parameter type-id='c8acc294' name='q_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='172' column='1'/>
+        <return type-id='9a42d4cd'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ctx_init' mangled-name='v4l2_m2m_ctx_init' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ctx_init'>
+        <parameter type-id='b50ade7a' name='m2m_dev' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1155' column='1'/>
+        <parameter type-id='eaa32e2f' name='drv_priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1156' column='1'/>
+        <parameter type-id='2291cc15' name='queue_init' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1157' column='1'/>
+        <return type-id='2c7f1dc4'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ctx_release' mangled-name='v4l2_m2m_ctx_release' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ctx_release'>
+        <parameter type-id='2c7f1dc4' name='m2m_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1202' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_fop_mmap' mangled-name='v4l2_m2m_fop_mmap' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1534' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_fop_mmap'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1534' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1534' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_fop_poll' mangled-name='v4l2_m2m_fop_poll' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1542' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_fop_poll'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1542' column='1'/>
+        <parameter type-id='a54c778f' name='wait' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1542' column='1'/>
+        <return type-id='8f254b08'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_get_curr_priv' mangled-name='v4l2_m2m_get_curr_priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_get_curr_priv'>
+        <parameter type-id='b50ade7a' name='m2m_dev' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='232' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_get_vq' mangled-name='v4l2_m2m_get_vq' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_get_vq'>
+        <parameter type-id='2c7f1dc4' name='m2m_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='123' column='1'/>
+        <parameter type-id='1abf108f' name='type' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='124' column='1'/>
+        <return type-id='a05f1ecd'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_init' mangled-name='v4l2_m2m_init' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_init'>
+        <parameter type-id='22f8026c' name='m2m_ops' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1128' column='1'/>
+        <return type-id='b50ade7a'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ioctl_dqbuf' mangled-name='v4l2_m2m_ioctl_dqbuf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ioctl_dqbuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1338' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1338' column='1'/>
+        <parameter type-id='a90d9002' name='buf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1339' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ioctl_querybuf' mangled-name='v4l2_m2m_ioctl_querybuf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ioctl_querybuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1320' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1320' column='1'/>
+        <parameter type-id='a90d9002' name='buf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1321' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ioctl_reqbufs' mangled-name='v4l2_m2m_ioctl_reqbufs' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ioctl_reqbufs'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1302' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1302' column='1'/>
+        <parameter type-id='e4330308' name='rb' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1303' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ioctl_streamoff' mangled-name='v4l2_m2m_ioctl_streamoff' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ioctl_streamoff'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1374' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1374' column='1'/>
+        <parameter type-id='1abf108f' name='type' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1375' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_ioctl_streamon' mangled-name='v4l2_m2m_ioctl_streamon' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1365' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_ioctl_streamon'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1365' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1365' column='1'/>
+        <parameter type-id='1abf108f' name='type' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1366' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_job_finish' mangled-name='v4l2_m2m_job_finish' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='483' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_job_finish'>
+        <parameter type-id='b50ade7a' name='m2m_dev' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='483' column='1'/>
+        <parameter type-id='2c7f1dc4' name='m2m_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='484' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_next_buf' mangled-name='v4l2_m2m_next_buf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_next_buf'>
+        <parameter type-id='c8acc294' name='q_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='136' column='1'/>
+        <return type-id='9a42d4cd'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_qbuf' mangled-name='v4l2_m2m_qbuf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_qbuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='747' column='1'/>
+        <parameter type-id='2c7f1dc4' name='m2m_ctx' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='747' column='1'/>
+        <parameter type-id='a90d9002' name='buf' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='748' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='v4l2_m2m_release' mangled-name='v4l2_m2m_release' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='v4l2_m2m_release'>
+        <parameter type-id='b50ade7a' name='m2m_dev' filepath='drivers/media/v4l2-core/v4l2-mem2mem.c' line='1149' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='vabits_actual' type-id='91ce1af9' mangled-name='vabits_actual' visibility='default' filepath='arch/arm64/mm/mmu.c' line='46' column='1' elf-symbol-id='vabits_actual'/>
+      <function-decl name='vb2_buffer_done' mangled-name='vb2_buffer_done' filepath='include/media/videobuf2-core.h' line='698' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_buffer_done'>
+        <parameter type-id='85535682'/>
+        <parameter type-id='550876cf'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='vb2_common_vm_ops' type-id='92e9b57c' mangled-name='vb2_common_vm_ops' visibility='default' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='122' column='1' elf-symbol-id='vb2_common_vm_ops'/>
+      <function-decl name='vb2_create_framevec' mangled-name='vb2_create_framevec' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_create_framevec'>
+        <parameter type-id='7359adad' name='start' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='36' column='1'/>
+        <parameter type-id='7359adad' name='length' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='37' column='1'/>
+        <return type-id='d9fbdc06'/>
+      </function-decl>
+      <function-decl name='vb2_destroy_framevec' mangled-name='vb2_destroy_framevec' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_destroy_framevec'>
+        <parameter type-id='d9fbdc06' name='vec' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='75' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <var-decl name='vb2_dma_sg_memops' type-id='23cb2797' mangled-name='vb2_dma_sg_memops' visibility='default' filepath='drivers/media/common/videobuf2/videobuf2-dma-sg.c' line='640' column='1' elf-symbol-id='vb2_dma_sg_memops'/>
+      <function-decl name='vb2_dqbuf' mangled-name='vb2_dqbuf' filepath='include/media/videobuf2-v4l2.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_dqbuf'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='a90d9002'/>
+        <parameter type-id='b50a4934'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_fop_mmap' mangled-name='vb2_fop_mmap' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_fop_mmap'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1101' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1101' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_fop_poll' mangled-name='vb2_fop_poll' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_fop_poll'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1182' column='1'/>
+        <parameter type-id='a54c778f' name='wait' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1182' column='1'/>
+        <return type-id='8f254b08'/>
+      </function-decl>
+      <function-decl name='vb2_fop_read' mangled-name='vb2_fop_read' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_fop_read'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1158' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1158' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1159' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1159' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='vb2_fop_release' mangled-name='vb2_fop_release' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_fop_release'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1125' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_create_bufs' mangled-name='vb2_ioctl_create_bufs' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1002' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_create_bufs'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1002' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1002' column='1'/>
+        <parameter type-id='0bb617a4' name='p' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1003' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_dqbuf' mangled-name='vb2_ioctl_dqbuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1059' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_dqbuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1059' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1059' column='1'/>
+        <parameter type-id='a90d9002' name='p' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1059' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_expbuf' mangled-name='vb2_ioctl_expbuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1089' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_expbuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1089' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1089' column='1'/>
+        <parameter type-id='5606e640' name='p' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1089' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_qbuf' mangled-name='vb2_ioctl_qbuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1049' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_qbuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1049' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1049' column='1'/>
+        <parameter type-id='a90d9002' name='p' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1049' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_querybuf' mangled-name='vb2_ioctl_querybuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_querybuf'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1040' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1040' column='1'/>
+        <parameter type-id='a90d9002' name='p' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1040' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_reqbufs' mangled-name='vb2_ioctl_reqbufs' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='982' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_reqbufs'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='982' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='982' column='1'/>
+        <parameter type-id='e4330308' name='p' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='983' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_streamoff' mangled-name='vb2_ioctl_streamoff' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1079' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_streamoff'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1079' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1079' column='1'/>
+        <parameter type-id='1abf108f' name='i' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1079' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ioctl_streamon' mangled-name='vb2_ioctl_streamon' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1069' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ioctl_streamon'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1069' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1069' column='1'/>
+        <parameter type-id='1abf108f' name='i' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1069' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_mmap' mangled-name='vb2_mmap' filepath='include/media/videobuf2-core.h' line='989' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_mmap'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='2ae08426'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_ops_wait_finish' mangled-name='vb2_ops_wait_finish' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ops_wait_finish'>
+        <parameter type-id='a05f1ecd' name='vq' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1269' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vb2_ops_wait_prepare' mangled-name='vb2_ops_wait_prepare' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ops_wait_prepare'>
+        <parameter type-id='a05f1ecd' name='vq' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1263' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vb2_plane_cookie' mangled-name='vb2_plane_cookie' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='983' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_plane_cookie'>
+        <parameter type-id='85535682' name='vb' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='983' column='1'/>
+        <parameter type-id='f0981eeb' name='plane_no' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='983' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vb2_plane_vaddr' mangled-name='vb2_plane_vaddr' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='973' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_plane_vaddr'>
+        <parameter type-id='85535682' name='vb' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='973' column='1'/>
+        <parameter type-id='f0981eeb' name='plane_no' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='973' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vb2_poll' mangled-name='vb2_poll' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_poll'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='947' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='947' column='1'/>
+        <parameter type-id='a54c778f' name='wait' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='947' column='1'/>
+        <return type-id='8f254b08'/>
+      </function-decl>
+      <function-decl name='vb2_qbuf' mangled-name='vb2_qbuf' filepath='include/media/videobuf2-v4l2.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_qbuf'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='e2929c1c'/>
+        <parameter type-id='a90d9002'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_querybuf' mangled-name='vb2_querybuf' filepath='include/media/videobuf2-v4l2.h' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_querybuf'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='a90d9002'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_queue_init' mangled-name='vb2_queue_init' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_queue_init'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='935' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_queue_release' mangled-name='vb2_queue_release' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='941' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_queue_release'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='941' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vb2_reqbufs' mangled-name='vb2_reqbufs' filepath='include/media/videobuf2-v4l2.h' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_reqbufs'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='e4330308'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_streamoff' mangled-name='vb2_streamoff' filepath='include/media/videobuf2-v4l2.h' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_streamoff'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='1abf108f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vb2_streamon' mangled-name='vb2_streamon' filepath='include/media/videobuf2-v4l2.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_streamon'>
+        <parameter type-id='a05f1ecd'/>
+        <parameter type-id='1abf108f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <var-decl name='vb2_vmalloc_memops' type-id='23cb2797' mangled-name='vb2_vmalloc_memops' visibility='default' filepath='drivers/media/common/videobuf2/videobuf2-vmalloc.c' line='417' column='1' elf-symbol-id='vb2_vmalloc_memops'/>
+      <function-decl name='vb2_wait_for_all_buffers' mangled-name='vb2_wait_for_all_buffers' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='1846' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_wait_for_all_buffers'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='1846' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vchan_dma_desc_free_list' mangled-name='vchan_dma_desc_free_list' filepath='drivers/dma/virt-dma.c' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vchan_dma_desc_free_list'>
+        <parameter type-id='6c3dd54a' name='vc' filepath='drivers/dma/virt-dma.c' line='112' column='1'/>
+        <parameter type-id='e84b031a' name='head' filepath='drivers/dma/virt-dma.c' line='112' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vchan_find_desc' mangled-name='vchan_find_desc' filepath='drivers/dma/virt-dma.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vchan_find_desc'>
+        <parameter type-id='6c3dd54a' name='vc' filepath='drivers/dma/virt-dma.c' line='66' column='1'/>
+        <parameter type-id='6478ea0a' name='cookie' filepath='drivers/dma/virt-dma.c' line='67' column='1'/>
+        <return type-id='5264cf1d'/>
+      </function-decl>
+      <function-decl name='vchan_init' mangled-name='vchan_init' filepath='drivers/dma/virt-dma.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vchan_init'>
+        <parameter type-id='6c3dd54a' name='vc' filepath='drivers/dma/virt-dma.c' line='123' column='1'/>
+        <parameter type-id='c60ba652' name='dmadev' filepath='drivers/dma/virt-dma.c' line='123' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vchan_tx_desc_free' mangled-name='vchan_tx_desc_free' filepath='drivers/dma/virt-dma.c' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vchan_tx_desc_free'>
+        <parameter type-id='0e3f80d9' name='tx' filepath='drivers/dma/virt-dma.c' line='49' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vchan_tx_submit' mangled-name='vchan_tx_submit' filepath='drivers/dma/virt-dma.c' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vchan_tx_submit'>
+        <parameter type-id='0e3f80d9' name='tx' filepath='drivers/dma/virt-dma.c' line='19' column='1'/>
+        <return type-id='6478ea0a'/>
+      </function-decl>
+      <function-decl name='vfree' mangled-name='vfree' filepath='include/linux/vmalloc.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vfree'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='video_devdata' mangled-name='video_devdata' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_devdata'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='234' column='1'/>
+        <return type-id='798c29b7'/>
+      </function-decl>
+      <function-decl name='video_device_alloc' mangled-name='video_device_alloc' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_device_alloc'>
+        <return type-id='798c29b7'/>
+      </function-decl>
+      <function-decl name='video_device_release' mangled-name='video_device_release' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_device_release'>
+        <parameter type-id='798c29b7' name='vdev' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='150' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='video_device_release_empty' mangled-name='video_device_release_empty' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_device_release_empty'>
+        <parameter type-id='798c29b7' name='vdev' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='156' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='video_ioctl2' mangled-name='video_ioctl2' filepath='drivers/media/v4l2-core/v4l2-ioctl.c' line='3373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_ioctl2'>
+        <parameter type-id='77e79a4b' name='file' filepath='drivers/media/v4l2-core/v4l2-ioctl.c' line='3373' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='drivers/media/v4l2-core/v4l2-ioctl.c' line='3374' column='1'/>
+        <parameter type-id='7359adad' name='arg' filepath='drivers/media/v4l2-core/v4l2-ioctl.c' line='3374' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='video_unregister_device' mangled-name='video_unregister_device' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='1077' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_unregister_device'>
+        <parameter type-id='798c29b7' name='vdev' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='1077' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_break_device' mangled-name='virtio_break_device' filepath='drivers/virtio/virtio_ring.c' line='2289' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_break_device'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio_ring.c' line='2289' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_check_driver_offered_feature' mangled-name='virtio_check_driver_offered_feature' filepath='drivers/virtio/virtio.c' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_check_driver_offered_feature'>
+        <parameter type-id='b8574f7c' name='vdev' filepath='drivers/virtio/virtio.c' line='104' column='1'/>
+        <parameter type-id='f0981eeb' name='fbit' filepath='drivers/virtio/virtio.c' line='105' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_config_changed' mangled-name='virtio_config_changed' filepath='drivers/virtio/virtio.c' line='134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_config_changed'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='134' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_device_freeze' mangled-name='virtio_device_freeze' filepath='drivers/virtio/virtio.c' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_device_freeze'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='403' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_device_restore' mangled-name='virtio_device_restore' filepath='drivers/virtio/virtio.c' line='418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_device_restore'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='418' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_max_dma_size' mangled-name='virtio_max_dma_size' filepath='drivers/virtio/virtio_ring.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_max_dma_size'>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='261' column='1'/>
+        <return type-id='b59d7dce'/>
+      </function-decl>
+      <function-decl name='virtio_transport_connect' mangled-name='virtio_transport_connect' filepath='net/vmw_vsock/virtio_transport_common.c' line='627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_connect'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='627' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_deliver_tap_pkt' mangled-name='virtio_transport_deliver_tap_pkt' filepath='include/linux/virtio_vsock.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_deliver_tap_pkt'>
+        <parameter type-id='ac22ee2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_destruct' mangled-name='virtio_transport_destruct' filepath='net/vmw_vsock/virtio_transport_common.c' line='682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_destruct'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='682' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_dgram_allow' mangled-name='virtio_transport_dgram_allow' filepath='net/vmw_vsock/virtio_transport_common.c' line='621' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_dgram_allow'>
+        <parameter type-id='19c2251e' name='cid' filepath='net/vmw_vsock/virtio_transport_common.c' line='621' column='1'/>
+        <parameter type-id='19c2251e' name='port' filepath='net/vmw_vsock/virtio_transport_common.c' line='621' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtio_transport_dgram_bind' mangled-name='virtio_transport_dgram_bind' filepath='net/vmw_vsock/virtio_transport_common.c' line='614' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_dgram_bind'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='614' column='1'/>
+        <parameter type-id='b6a6ca60' name='addr' filepath='net/vmw_vsock/virtio_transport_common.c' line='615' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_dgram_dequeue' mangled-name='virtio_transport_dgram_dequeue' filepath='net/vmw_vsock/virtio_transport_common.c' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_dgram_dequeue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='417' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/vmw_vsock/virtio_transport_common.c' line='418' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/vmw_vsock/virtio_transport_common.c' line='419' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/vmw_vsock/virtio_transport_common.c' line='419' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_dgram_enqueue' mangled-name='virtio_transport_dgram_enqueue' filepath='net/vmw_vsock/virtio_transport_common.c' line='656' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_dgram_enqueue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='656' column='1'/>
+        <parameter type-id='b6a6ca60' name='remote_addr' filepath='net/vmw_vsock/virtio_transport_common.c' line='657' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/vmw_vsock/virtio_transport_common.c' line='658' column='1'/>
+        <parameter type-id='b59d7dce' name='dgram_len' filepath='net/vmw_vsock/virtio_transport_common.c' line='659' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_do_socket_init' mangled-name='virtio_transport_do_socket_init' filepath='net/vmw_vsock/virtio_transport_common.c' line='463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_do_socket_init'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='463' column='1'/>
+        <parameter type-id='ecb0ce18' name='psk' filepath='net/vmw_vsock/virtio_transport_common.c' line='464' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_free_pkt' mangled-name='virtio_transport_free_pkt' filepath='include/linux/virtio_vsock.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_free_pkt'>
+        <parameter type-id='ac22ee2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_buffer_size' mangled-name='virtio_transport_notify_buffer_size' filepath='net/vmw_vsock/virtio_transport_common.c' line='494' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_buffer_size'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='494' column='1'/>
+        <parameter type-id='3df9fd28' name='val' filepath='net/vmw_vsock/virtio_transport_common.c' line='494' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_poll_in' mangled-name='virtio_transport_notify_poll_in' filepath='net/vmw_vsock/virtio_transport_common.c' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_poll_in'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='509' column='1'/>
+        <parameter type-id='b59d7dce' name='target' filepath='net/vmw_vsock/virtio_transport_common.c' line='510' column='1'/>
+        <parameter type-id='d8e6b335' name='data_ready_now' filepath='net/vmw_vsock/virtio_transport_common.c' line='511' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_poll_out' mangled-name='virtio_transport_notify_poll_out' filepath='net/vmw_vsock/virtio_transport_common.c' line='523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_poll_out'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='523' column='1'/>
+        <parameter type-id='b59d7dce' name='target' filepath='net/vmw_vsock/virtio_transport_common.c' line='524' column='1'/>
+        <parameter type-id='d8e6b335' name='space_avail_now' filepath='net/vmw_vsock/virtio_transport_common.c' line='525' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_recv_init' mangled-name='virtio_transport_notify_recv_init' filepath='net/vmw_vsock/virtio_transport_common.c' line='539' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_recv_init'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='539' column='1'/>
+        <parameter type-id='b59d7dce' name='target' filepath='net/vmw_vsock/virtio_transport_common.c' line='540' column='1'/>
+        <parameter type-id='c777e389' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='540' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_recv_post_dequeue' mangled-name='virtio_transport_notify_recv_post_dequeue' filepath='net/vmw_vsock/virtio_transport_common.c' line='560' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_recv_post_dequeue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='560' column='1'/>
+        <parameter type-id='b59d7dce' name='target' filepath='net/vmw_vsock/virtio_transport_common.c' line='561' column='1'/>
+        <parameter type-id='79a0948f' name='copied' filepath='net/vmw_vsock/virtio_transport_common.c' line='561' column='1'/>
+        <parameter type-id='b50a4934' name='data_read' filepath='net/vmw_vsock/virtio_transport_common.c' line='561' column='1'/>
+        <parameter type-id='c777e389' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='562' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_recv_pre_block' mangled-name='virtio_transport_notify_recv_pre_block' filepath='net/vmw_vsock/virtio_transport_common.c' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_recv_pre_block'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='546' column='1'/>
+        <parameter type-id='b59d7dce' name='target' filepath='net/vmw_vsock/virtio_transport_common.c' line='547' column='1'/>
+        <parameter type-id='c777e389' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='547' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_recv_pre_dequeue' mangled-name='virtio_transport_notify_recv_pre_dequeue' filepath='net/vmw_vsock/virtio_transport_common.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_recv_pre_dequeue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='553' column='1'/>
+        <parameter type-id='b59d7dce' name='target' filepath='net/vmw_vsock/virtio_transport_common.c' line='554' column='1'/>
+        <parameter type-id='c777e389' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='554' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_send_init' mangled-name='virtio_transport_notify_send_init' filepath='net/vmw_vsock/virtio_transport_common.c' line='568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_send_init'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='568' column='1'/>
+        <parameter type-id='6f074813' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='569' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_send_post_enqueue' mangled-name='virtio_transport_notify_send_post_enqueue' filepath='net/vmw_vsock/virtio_transport_common.c' line='589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_send_post_enqueue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='589' column='1'/>
+        <parameter type-id='79a0948f' name='written' filepath='net/vmw_vsock/virtio_transport_common.c' line='590' column='1'/>
+        <parameter type-id='6f074813' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='590' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_send_pre_block' mangled-name='virtio_transport_notify_send_pre_block' filepath='net/vmw_vsock/virtio_transport_common.c' line='575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_send_pre_block'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='575' column='1'/>
+        <parameter type-id='6f074813' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='576' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_notify_send_pre_enqueue' mangled-name='virtio_transport_notify_send_pre_enqueue' filepath='net/vmw_vsock/virtio_transport_common.c' line='582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_send_pre_enqueue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='582' column='1'/>
+        <parameter type-id='6f074813' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='583' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_recv_pkt' mangled-name='virtio_transport_recv_pkt' filepath='include/linux/virtio_vsock.h' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_recv_pkt'>
+        <parameter type-id='2bfa174e'/>
+        <parameter type-id='ac22ee2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_release' mangled-name='virtio_transport_release' filepath='net/vmw_vsock/virtio_transport_common.c' line='850' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_release'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='850' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_shutdown' mangled-name='virtio_transport_shutdown' filepath='net/vmw_vsock/virtio_transport_common.c' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_shutdown'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='639' column='1'/>
+        <parameter type-id='95e97e5e' name='mode' filepath='net/vmw_vsock/virtio_transport_common.c' line='639' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_allow' mangled-name='virtio_transport_stream_allow' filepath='net/vmw_vsock/virtio_transport_common.c' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_allow'>
+        <parameter type-id='19c2251e' name='cid' filepath='net/vmw_vsock/virtio_transport_common.c' line='608' column='1'/>
+        <parameter type-id='19c2251e' name='port' filepath='net/vmw_vsock/virtio_transport_common.c' line='608' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_dequeue' mangled-name='virtio_transport_stream_dequeue' filepath='net/vmw_vsock/virtio_transport_common.c' line='405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_dequeue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='405' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/vmw_vsock/virtio_transport_common.c' line='406' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/vmw_vsock/virtio_transport_common.c' line='407' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/vmw_vsock/virtio_transport_common.c' line='407' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_enqueue' mangled-name='virtio_transport_stream_enqueue' filepath='net/vmw_vsock/virtio_transport_common.c' line='666' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_enqueue'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='666' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/vmw_vsock/virtio_transport_common.c' line='667' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/vmw_vsock/virtio_transport_common.c' line='668' column='1'/>
+        <return type-id='79a0948f'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_has_data' mangled-name='virtio_transport_stream_has_data' filepath='net/vmw_vsock/virtio_transport_common.c' line='425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_has_data'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='425' column='1'/>
+        <return type-id='9b7c55ef'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_has_space' mangled-name='virtio_transport_stream_has_space' filepath='net/vmw_vsock/virtio_transport_common.c' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_has_space'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='450' column='1'/>
+        <return type-id='9b7c55ef'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_is_active' mangled-name='virtio_transport_stream_is_active' filepath='net/vmw_vsock/virtio_transport_common.c' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_is_active'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='602' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtio_transport_stream_rcvhiwat' mangled-name='virtio_transport_stream_rcvhiwat' filepath='net/vmw_vsock/virtio_transport_common.c' line='596' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_stream_rcvhiwat'>
+        <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='596' column='1'/>
+        <return type-id='91ce1af9'/>
+      </function-decl>
+      <function-decl name='virtqueue_add_inbuf' mangled-name='virtqueue_add_inbuf' filepath='drivers/virtio/virtio_ring.c' line='1792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_inbuf'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1792' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1793' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1793' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1794' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1795' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtqueue_add_inbuf_ctx' mangled-name='virtqueue_add_inbuf_ctx' filepath='drivers/virtio/virtio_ring.c' line='1815' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_inbuf_ctx'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1815' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1816' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1816' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1817' column='1'/>
+        <parameter type-id='eaa32e2f' name='ctx' filepath='drivers/virtio/virtio_ring.c' line='1818' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1819' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtqueue_add_outbuf' mangled-name='virtqueue_add_outbuf' filepath='drivers/virtio/virtio_ring.c' line='1770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_outbuf'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1770' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1771' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1771' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1772' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1773' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtqueue_add_sgs' mangled-name='virtqueue_add_sgs' filepath='include/linux/virtio.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_sgs'>
+        <parameter type-id='91d0de51'/>
+        <parameter type-id='3f2244fd'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='3eb7c31c'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='virtqueue_detach_unused_buf' mangled-name='virtqueue_detach_unused_buf' filepath='drivers/virtio/virtio_ring.c' line='2033' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_detach_unused_buf'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2033' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='virtqueue_disable_cb' mangled-name='virtqueue_disable_cb' filepath='include/linux/virtio.h' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_disable_cb'>
+        <parameter type-id='91d0de51'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='virtqueue_enable_cb' mangled-name='virtqueue_enable_cb' filepath='include/linux/virtio.h' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb'>
+        <parameter type-id='91d0de51'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtqueue_enable_cb_delayed' mangled-name='virtqueue_enable_cb_delayed' filepath='drivers/virtio/virtio_ring.c' line='2016' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb_delayed'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2016' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtqueue_enable_cb_prepare' mangled-name='virtqueue_enable_cb_prepare' filepath='drivers/virtio/virtio_ring.c' line='1953' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb_prepare'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1953' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='virtqueue_get_avail_addr' mangled-name='virtqueue_get_avail_addr' filepath='drivers/virtio/virtio_ring.c' line='2317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_avail_addr'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2317' column='1'/>
+        <return type-id='cf29c9b3'/>
+      </function-decl>
+      <function-decl name='virtqueue_get_buf' mangled-name='virtqueue_get_buf' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_buf'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1'/>
+        <parameter type-id='807869d3' name='len' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='virtqueue_get_buf_ctx' mangled-name='virtqueue_get_buf_ctx' filepath='drivers/virtio/virtio_ring.c' line='1906' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_buf_ctx'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1906' column='1'/>
+        <parameter type-id='807869d3' name='len' filepath='drivers/virtio/virtio_ring.c' line='1906' column='1'/>
+        <parameter type-id='63e171df' name='ctx' filepath='drivers/virtio/virtio_ring.c' line='1907' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='virtqueue_get_desc_addr' mangled-name='virtqueue_get_desc_addr' filepath='drivers/virtio/virtio_ring.c' line='2304' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_desc_addr'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2304' column='1'/>
+        <return type-id='cf29c9b3'/>
+      </function-decl>
+      <function-decl name='virtqueue_get_used_addr' mangled-name='virtqueue_get_used_addr' filepath='drivers/virtio/virtio_ring.c' line='2331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_used_addr'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2331' column='1'/>
+        <return type-id='cf29c9b3'/>
+      </function-decl>
+      <function-decl name='virtqueue_get_vring_size' mangled-name='virtqueue_get_vring_size' filepath='drivers/virtio/virtio_ring.c' line='2268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_vring_size'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2268' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='virtqueue_is_broken' mangled-name='virtqueue_is_broken' filepath='include/linux/virtio.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_is_broken'>
+        <parameter type-id='91d0de51'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtqueue_kick' mangled-name='virtqueue_kick' filepath='drivers/virtio/virtio_ring.c' line='1881' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_kick'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1881' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtqueue_kick_prepare' mangled-name='virtqueue_kick_prepare' filepath='include/linux/virtio.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_kick_prepare'>
+        <parameter type-id='91d0de51'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtqueue_notify' mangled-name='virtqueue_notify' filepath='include/linux/virtio.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_notify'>
+        <parameter type-id='91d0de51'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='virtqueue_poll' mangled-name='virtqueue_poll' filepath='drivers/virtio/virtio_ring.c' line='1971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_poll'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1971' column='1'/>
+        <parameter type-id='f0981eeb' name='last_used_idx' filepath='drivers/virtio/virtio_ring.c' line='1971' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='vlan_uses_dev' mangled-name='vlan_uses_dev' filepath='net/8021q/vlan_core.c' line='443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vlan_uses_dev'>
+        <parameter type-id='2ce52478' name='dev' filepath='net/8021q/vlan_core.c' line='443' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='vlan_vid_add' mangled-name='vlan_vid_add' filepath='net/8021q/vlan_core.c' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vlan_vid_add'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/8021q/vlan_core.c' line='317' column='1'/>
+        <parameter type-id='84a5c3d4' name='proto' filepath='net/8021q/vlan_core.c' line='317' column='1'/>
+        <parameter type-id='1dc6a898' name='vid' filepath='net/8021q/vlan_core.c' line='317' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vlan_vid_del' mangled-name='vlan_vid_del' filepath='net/8021q/vlan_core.c' line='370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vlan_vid_del'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/8021q/vlan_core.c' line='370' column='1'/>
+        <parameter type-id='84a5c3d4' name='proto' filepath='net/8021q/vlan_core.c' line='370' column='1'/>
+        <parameter type-id='1dc6a898' name='vid' filepath='net/8021q/vlan_core.c' line='370' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vlan_vids_add_by_dev' mangled-name='vlan_vids_add_by_dev' filepath='net/8021q/vlan_core.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vlan_vids_add_by_dev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/8021q/vlan_core.c' line='395' column='1'/>
+        <parameter type-id='2ce52478' name='by_dev' filepath='net/8021q/vlan_core.c' line='396' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vlan_vids_del_by_dev' mangled-name='vlan_vids_del_by_dev' filepath='net/8021q/vlan_core.c' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vlan_vids_del_by_dev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/8021q/vlan_core.c' line='426' column='1'/>
+        <parameter type-id='2ce52478' name='by_dev' filepath='net/8021q/vlan_core.c' line='427' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vm_get_page_prot' mangled-name='vm_get_page_prot' filepath='mm/mmap.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_get_page_prot'>
+        <parameter type-id='7359adad' name='vm_flags' filepath='mm/mmap.c' line='111' column='1'/>
+        <return type-id='2e2dcbd3'/>
+      </function-decl>
+      <function-decl name='vm_iomap_memory' mangled-name='vm_iomap_memory' filepath='mm/memory.c' line='2388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_iomap_memory'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2388' column='1'/>
+        <parameter type-id='2522883d' name='start' filepath='mm/memory.c' line='2388' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='mm/memory.c' line='2388' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vm_map_pages' mangled-name='vm_map_pages' filepath='mm/memory.c' line='1932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_map_pages'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='1932' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/memory.c' line='1932' column='1'/>
+        <parameter type-id='7359adad' name='num' filepath='mm/memory.c' line='1933' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vm_map_ram' mangled-name='vm_map_ram' filepath='mm/vmalloc.c' line='1847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_map_ram'>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/vmalloc.c' line='1847' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/vmalloc.c' line='1847' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='mm/vmalloc.c' line='1847' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vm_mmap' mangled-name='vm_mmap' filepath='mm/util.c' line='522' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_mmap'>
+        <parameter type-id='77e79a4b' name='file' filepath='mm/util.c' line='522' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/util.c' line='522' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='mm/util.c' line='523' column='1'/>
+        <parameter type-id='7359adad' name='prot' filepath='mm/util.c' line='523' column='1'/>
+        <parameter type-id='7359adad' name='flag' filepath='mm/util.c' line='524' column='1'/>
+        <parameter type-id='7359adad' name='offset' filepath='mm/util.c' line='524' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='vm_unmap_ram' mangled-name='vm_unmap_ram' filepath='mm/vmalloc.c' line='1805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_unmap_ram'>
+        <parameter type-id='eaa32e2f' name='mem' filepath='mm/vmalloc.c' line='1805' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/vmalloc.c' line='1805' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vmalloc' mangled-name='vmalloc' filepath='include/linux/vmalloc.h' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc'>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vmalloc_to_page' mangled-name='vmalloc_to_page' filepath='include/linux/mm.h' line='791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc_to_page'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='02f11ed4'/>
+      </function-decl>
+      <function-decl name='vmalloc_user' mangled-name='vmalloc_user' filepath='mm/vmalloc.c' line='2744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc_user'>
+        <parameter type-id='7359adad' name='size' filepath='mm/vmalloc.c' line='2744' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vmap' mangled-name='vmap' filepath='include/linux/vmalloc.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmap'>
+        <parameter type-id='9f93c9da'/>
+        <parameter type-id='f0981eeb'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='2e2dcbd3'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vmemdup_user' mangled-name='vmemdup_user' filepath='include/linux/string.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmemdup_user'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='b59d7dce'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vmf_insert_mixed' mangled-name='vmf_insert_mixed' filepath='mm/memory.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_mixed'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2182' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2182' column='1'/>
+        <parameter type-id='abe59ef3' name='pfn' filepath='mm/memory.c' line='2183' column='1'/>
+        <return type-id='e9265215'/>
+      </function-decl>
+      <function-decl name='vmf_insert_pfn' mangled-name='vmf_insert_pfn' filepath='mm/memory.c' line='2082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_pfn'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2082' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2082' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2083' column='1'/>
+        <return type-id='e9265215'/>
+      </function-decl>
+      <function-decl name='vmf_insert_pfn_prot' mangled-name='vmf_insert_pfn_prot' filepath='mm/memory.c' line='2034' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_pfn_prot'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2034' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2034' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2035' column='1'/>
+        <parameter type-id='2e2dcbd3' name='pgprot' filepath='mm/memory.c' line='2035' column='1'/>
+        <return type-id='e9265215'/>
+      </function-decl>
+      <function-decl name='vprintk' mangled-name='vprintk' filepath='include/linux/printk.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vprintk'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2aee9912'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vring_create_virtqueue' mangled-name='vring_create_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_create_virtqueue'>
+        <parameter type-id='f0981eeb' name='index' filepath='drivers/virtio/virtio_ring.c' line='2149' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='2150' column='1'/>
+        <parameter type-id='f0981eeb' name='vring_align' filepath='drivers/virtio/virtio_ring.c' line='2151' column='1'/>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2152' column='1'/>
+        <parameter type-id='b50a4934' name='weak_barriers' filepath='drivers/virtio/virtio_ring.c' line='2153' column='1'/>
+        <parameter type-id='b50a4934' name='may_reduce_num' filepath='drivers/virtio/virtio_ring.c' line='2154' column='1'/>
+        <parameter type-id='b50a4934' name='context' filepath='drivers/virtio/virtio_ring.c' line='2155' column='1'/>
+        <parameter type-id='3098d84b' name='notify' filepath='drivers/virtio/virtio_ring.c' line='2156' column='1'/>
+        <parameter type-id='c881e0a0' name='callback' filepath='drivers/virtio/virtio_ring.c' line='2157' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/virtio/virtio_ring.c' line='2158' column='1'/>
+        <return type-id='91d0de51'/>
+      </function-decl>
+      <function-decl name='vring_del_virtqueue' mangled-name='vring_del_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_del_virtqueue'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2195' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vring_interrupt' mangled-name='vring_interrupt' filepath='drivers/virtio/virtio_ring.c' line='2047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_interrupt'>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/virtio/virtio_ring.c' line='2047' column='1'/>
+        <parameter type-id='eaa32e2f' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2047' column='1'/>
+        <return type-id='4bdecfd7'/>
+      </function-decl>
+      <function-decl name='vring_new_virtqueue' mangled-name='vring_new_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_new_virtqueue'>
+        <parameter type-id='f0981eeb' name='index' filepath='drivers/virtio/virtio_ring.c' line='2173' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='2174' column='1'/>
+        <parameter type-id='f0981eeb' name='vring_align' filepath='drivers/virtio/virtio_ring.c' line='2175' column='1'/>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2176' column='1'/>
+        <parameter type-id='b50a4934' name='weak_barriers' filepath='drivers/virtio/virtio_ring.c' line='2177' column='1'/>
+        <parameter type-id='b50a4934' name='context' filepath='drivers/virtio/virtio_ring.c' line='2178' column='1'/>
+        <parameter type-id='eaa32e2f' name='pages' filepath='drivers/virtio/virtio_ring.c' line='2179' column='1'/>
+        <parameter type-id='3098d84b' name='notify' filepath='drivers/virtio/virtio_ring.c' line='2180' column='1'/>
+        <parameter type-id='c881e0a0' name='callback' filepath='drivers/virtio/virtio_ring.c' line='2181' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/virtio/virtio_ring.c' line='2182' column='1'/>
+        <return type-id='91d0de51'/>
+      </function-decl>
+      <function-decl name='vring_transport_features' mangled-name='vring_transport_features' filepath='drivers/virtio/virtio_ring.c' line='2235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_transport_features'>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2235' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vscnprintf' mangled-name='vscnprintf' filepath='include/linux/kernel.h' line='485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vscnprintf'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2aee9912'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vsnprintf' mangled-name='vsnprintf' filepath='include/linux/kernel.h' line='481' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsnprintf'>
+        <parameter type-id='26a90f95'/>
+        <parameter type-id='b59d7dce'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2aee9912'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vsock_core_register' mangled-name='vsock_core_register' filepath='include/net/af_vsock.h' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_core_register'>
+        <parameter type-id='c6c5bd96'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vsock_core_unregister' mangled-name='vsock_core_unregister' filepath='include/net/af_vsock.h' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_core_unregister'>
+        <parameter type-id='c6c5bd96'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vsock_for_each_connected_socket' mangled-name='vsock_for_each_connected_socket' filepath='include/net/af_vsock.h' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_for_each_connected_socket'>
+        <parameter type-id='841969d0'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vsscanf' mangled-name='vsscanf' filepath='lib/vsprintf.c' line='3288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsscanf'>
+        <parameter type-id='80f4b756' name='buf' filepath='lib/vsprintf.c' line='3288' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/vsprintf.c' line='3288' column='1'/>
+        <parameter type-id='2aee9912' name='args' filepath='lib/vsprintf.c' line='3288' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vunmap' mangled-name='vunmap' filepath='include/linux/vmalloc.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vunmap'>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='vzalloc' mangled-name='vzalloc' filepath='include/linux/vmalloc.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vzalloc'>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='vzalloc_node' mangled-name='vzalloc_node' filepath='mm/vmalloc.c' line='2784' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vzalloc_node'>
+        <parameter type-id='7359adad' name='size' filepath='mm/vmalloc.c' line='2784' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='mm/vmalloc.c' line='2784' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='wait_for_completion' mangled-name='wait_for_completion' filepath='include/linux/completion.h' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion'>
+        <parameter type-id='389faaf7'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wait_for_completion_interruptible' mangled-name='wait_for_completion_interruptible' filepath='kernel/sched/completion.c' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_interruptible'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='204' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='wait_for_completion_interruptible_timeout' mangled-name='wait_for_completion_interruptible_timeout' filepath='kernel/sched/completion.c' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_interruptible_timeout'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='225' column='1'/>
+        <parameter type-id='7359adad' name='timeout' filepath='kernel/sched/completion.c' line='226' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='wait_for_completion_io_timeout' mangled-name='wait_for_completion_io_timeout' filepath='kernel/sched/completion.c' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_io_timeout'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='189' column='1'/>
+        <parameter type-id='7359adad' name='timeout' filepath='kernel/sched/completion.c' line='189' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='wait_for_completion_killable' mangled-name='wait_for_completion_killable' filepath='include/linux/completion.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_killable'>
+        <parameter type-id='389faaf7'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='wait_for_completion_timeout' mangled-name='wait_for_completion_timeout' filepath='include/linux/completion.h' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_timeout'>
+        <parameter type-id='389faaf7'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='7359adad'/>
+      </function-decl>
+      <function-decl name='wait_woken' mangled-name='wait_woken' filepath='kernel/sched/wait.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_woken'>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='440' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait.c' line='440' column='1'/>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/sched/wait.c' line='440' column='1'/>
+        <return type-id='bd54fe1a'/>
+      </function-decl>
+      <function-decl name='wake_up_bit' mangled-name='wake_up_bit' filepath='include/linux/wait_bit.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wake_up_bit'>
+        <parameter type-id='eaa32e2f'/>
+        <parameter type-id='95e97e5e'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wake_up_process' mangled-name='wake_up_process' filepath='kernel/sched/core.c' line='3276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wake_up_process'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='3276' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='wakeup_source_add' mangled-name='wakeup_source_add' filepath='drivers/base/power/wakeup.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_add'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='175' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wakeup_source_create' mangled-name='wakeup_source_create' filepath='drivers/base/power/wakeup.c' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_create'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/power/wakeup.c' line='88' column='1'/>
+        <return type-id='1ea237a6'/>
+      </function-decl>
+      <function-decl name='wakeup_source_destroy' mangled-name='wakeup_source_destroy' filepath='drivers/base/power/wakeup.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_destroy'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='160' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wakeup_source_register' mangled-name='wakeup_source_register' filepath='include/linux/pm_wakeup.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_register'>
+        <parameter type-id='fa0b179b'/>
+        <parameter type-id='80f4b756'/>
+        <return type-id='1ea237a6'/>
+      </function-decl>
+      <function-decl name='wakeup_source_remove' mangled-name='wakeup_source_remove' filepath='drivers/base/power/wakeup.c' line='196' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_remove'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='196' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wakeup_source_unregister' mangled-name='wakeup_source_unregister' filepath='include/linux/pm_wakeup.h' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_unregister'>
+        <parameter type-id='1ea237a6'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='watchdog_init_timeout' mangled-name='watchdog_init_timeout' filepath='drivers/watchdog/watchdog_core.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='watchdog_init_timeout'>
+        <parameter type-id='7bf5a5e5' name='wdd' filepath='drivers/watchdog/watchdog_core.c' line='114' column='1'/>
+        <parameter type-id='f0981eeb' name='timeout_parm' filepath='drivers/watchdog/watchdog_core.c' line='115' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/watchdog/watchdog_core.c' line='115' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='watchdog_register_device' mangled-name='watchdog_register_device' filepath='drivers/watchdog/watchdog_core.c' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='watchdog_register_device'>
+        <parameter type-id='7bf5a5e5' name='wdd' filepath='drivers/watchdog/watchdog_core.c' line='309' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='watchdog_set_restart_priority' mangled-name='watchdog_set_restart_priority' filepath='drivers/watchdog/watchdog_core.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='watchdog_set_restart_priority'>
+        <parameter type-id='7bf5a5e5' name='wdd' filepath='drivers/watchdog/watchdog_core.c' line='202' column='1'/>
+        <parameter type-id='95e97e5e' name='priority' filepath='drivers/watchdog/watchdog_core.c' line='202' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='watchdog_unregister_device' mangled-name='watchdog_unregister_device' filepath='drivers/watchdog/watchdog_core.c' line='355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='watchdog_unregister_device'>
+        <parameter type-id='7bf5a5e5' name='wdd' filepath='drivers/watchdog/watchdog_core.c' line='355' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wiphy_apply_custom_regulatory' mangled-name='wiphy_apply_custom_regulatory' filepath='net/wireless/reg.c' line='2547' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_apply_custom_regulatory'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/reg.c' line='2547' column='1'/>
+        <parameter type-id='4e819401' name='regd' filepath='net/wireless/reg.c' line='2548' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wiphy_free' mangled-name='wiphy_free' filepath='net/wireless/core.c' line='1081' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_free'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/core.c' line='1081' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wiphy_new_nm' mangled-name='wiphy_new_nm' filepath='net/wireless/core.c' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_new_nm'>
+        <parameter type-id='8bfdd055' name='ops' filepath='net/wireless/core.c' line='400' column='1'/>
+        <parameter type-id='95e97e5e' name='sizeof_priv' filepath='net/wireless/core.c' line='400' column='1'/>
+        <parameter type-id='80f4b756' name='requested_name' filepath='net/wireless/core.c' line='401' column='1'/>
+        <return type-id='666fb412'/>
+      </function-decl>
+      <function-decl name='wiphy_read_of_freq_limits' mangled-name='wiphy_read_of_freq_limits' filepath='net/wireless/of.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_read_of_freq_limits'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/of.c' line='74' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wiphy_register' mangled-name='wiphy_register' filepath='net/wireless/core.c' line='648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_register'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/core.c' line='648' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='wiphy_rfkill_set_hw_state' mangled-name='wiphy_rfkill_set_hw_state' filepath='net/wireless/core.c' line='1087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_rfkill_set_hw_state'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/core.c' line='1087' column='1'/>
+        <parameter type-id='b50a4934' name='blocked' filepath='net/wireless/core.c' line='1087' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wiphy_to_ieee80211_hw' mangled-name='wiphy_to_ieee80211_hw' filepath='net/mac80211/util.c' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_to_ieee80211_hw'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/mac80211/util.c' line='39' column='1'/>
+        <return type-id='1905517d'/>
+      </function-decl>
+      <function-decl name='wiphy_unregister' mangled-name='wiphy_unregister' filepath='net/wireless/core.c' line='1009' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wiphy_unregister'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/core.c' line='1009' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='wireless_send_event' mangled-name='wireless_send_event' filepath='net/wireless/wext-core.c' line='451' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wireless_send_event'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/wext-core.c' line='451' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='net/wireless/wext-core.c' line='452' column='1'/>
+        <parameter type-id='00e2a7ce' name='wrqu' filepath='net/wireless/wext-core.c' line='453' column='1'/>
+        <parameter type-id='80f4b756' name='extra' filepath='net/wireless/wext-core.c' line='454' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='woken_wake_function' mangled-name='woken_wake_function' filepath='kernel/sched/wait.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='woken_wake_function'>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='465' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait.c' line='465' column='1'/>
+        <parameter type-id='95e97e5e' name='sync' filepath='kernel/sched/wait.c' line='466' column='1'/>
+        <parameter type-id='eaa32e2f' name='key' filepath='kernel/sched/wait.c' line='466' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='work_busy' mangled-name='work_busy' filepath='kernel/workqueue.c' line='4602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='work_busy'>
+        <parameter type-id='83c1bde6' name='work' filepath='kernel/workqueue.c' line='4602' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='ww_mutex_lock_interruptible' mangled-name='ww_mutex_lock_interruptible' filepath='kernel/locking/mutex.c' line='1458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ww_mutex_lock_interruptible'>
+        <parameter type-id='7533ba6f' name='lock' filepath='kernel/locking/mutex.c' line='1458' column='1'/>
+        <parameter type-id='c1d02a64' name='ctx' filepath='kernel/locking/mutex.c' line='1458' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='ww_mutex_unlock' mangled-name='ww_mutex_unlock' filepath='kernel/locking/mutex.c' line='770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ww_mutex_unlock'>
+        <parameter type-id='7533ba6f' name='lock' filepath='kernel/locking/mutex.c' line='770' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xa_clear_mark' mangled-name='xa_clear_mark' filepath='lib/xarray.c' line='1980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_clear_mark'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1980' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/xarray.c' line='1980' column='1'/>
+        <parameter type-id='933bf462' name='mark' filepath='lib/xarray.c' line='1980' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xa_destroy' mangled-name='xa_destroy' filepath='lib/xarray.c' line='2199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_destroy'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='2199' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xa_erase' mangled-name='xa_erase' filepath='include/linux/xarray.h' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_erase'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='xa_find' mangled-name='xa_find' filepath='include/linux/xarray.h' line='355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_find'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='1d2c2b85'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='933bf462'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='xa_find_after' mangled-name='xa_find_after' filepath='include/linux/xarray.h' line='357' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_find_after'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='1d2c2b85'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='933bf462'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='xa_get_mark' mangled-name='xa_get_mark' filepath='include/linux/xarray.h' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_get_mark'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='7359adad'/>
+        <parameter type-id='933bf462'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
+      <function-decl name='xa_load' mangled-name='xa_load' filepath='include/linux/xarray.h' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_load'>
+        <parameter type-id='60075f2a'/>
+        <parameter type-id='7359adad'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='xa_set_mark' mangled-name='xa_set_mark' filepath='lib/xarray.c' line='1962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_set_mark'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1962' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/xarray.c' line='1962' column='1'/>
+        <parameter type-id='933bf462' name='mark' filepath='lib/xarray.c' line='1962' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xa_store' mangled-name='xa_store' filepath='lib/xarray.c' line='1569' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_store'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1569' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/xarray.c' line='1569' column='1'/>
+        <parameter type-id='eaa32e2f' name='entry' filepath='lib/xarray.c' line='1569' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/xarray.c' line='1569' column='1'/>
+        <return type-id='eaa32e2f'/>
+      </function-decl>
+      <function-decl name='xdp_convert_zc_to_xdp_frame' mangled-name='xdp_convert_zc_to_xdp_frame' filepath='include/net/xdp.h' line='134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_convert_zc_to_xdp_frame'>
+        <parameter type-id='38ed603d'/>
+        <return type-id='cb1c5129'/>
+      </function-decl>
+      <function-decl name='xdp_do_flush' mangled-name='xdp_do_flush' filepath='net/core/filter.c' line='3918' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_flush'>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xdp_do_redirect' mangled-name='xdp_do_redirect' filepath='include/linux/filter.h' line='969' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_redirect'>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='38ed603d'/>
+        <parameter type-id='bdcee7ae'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xdp_return_frame' mangled-name='xdp_return_frame' filepath='net/core/xdp.c' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_return_frame'>
+        <parameter type-id='cb1c5129' name='xdpf' filepath='net/core/xdp.c' line='375' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xdp_return_frame_rx_napi' mangled-name='xdp_return_frame_rx_napi' filepath='net/core/xdp.c' line='381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_return_frame_rx_napi'>
+        <parameter type-id='cb1c5129' name='xdpf' filepath='net/core/xdp.c' line='381' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xdp_rxq_info_reg' mangled-name='xdp_rxq_info_reg' filepath='include/net/xdp.h' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg'>
+        <parameter type-id='8e35a44c'/>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='19c2251e'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xdp_rxq_info_reg_mem_model' mangled-name='xdp_rxq_info_reg_mem_model' filepath='include/net/xdp.h' line='218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg_mem_model'>
+        <parameter type-id='8e35a44c'/>
+        <parameter type-id='8abc4a7f'/>
+        <parameter type-id='eaa32e2f'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xdp_rxq_info_unreg' mangled-name='xdp_rxq_info_unreg' filepath='include/net/xdp.h' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_unreg'>
+        <parameter type-id='8e35a44c'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xdp_warn' mangled-name='xdp_warn' filepath='include/net/xdp.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_warn'>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='80f4b756'/>
+        <parameter type-id='2448a865'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xfrm_state_lookup_byspi' mangled-name='xfrm_state_lookup_byspi' filepath='net/xfrm/xfrm_state.c' line='1221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xfrm_state_lookup_byspi'>
+        <parameter type-id='a2bff676' name='net' filepath='net/xfrm/xfrm_state.c' line='1221' column='1'/>
+        <parameter type-id='78a133c2' name='spi' filepath='net/xfrm/xfrm_state.c' line='1221' column='1'/>
+        <parameter type-id='8efea9e5' name='family' filepath='net/xfrm/xfrm_state.c' line='1222' column='1'/>
+        <return type-id='328dda6e'/>
+      </function-decl>
+      <function-decl name='xfrm_stateonly_find' mangled-name='xfrm_stateonly_find' filepath='net/xfrm/xfrm_state.c' line='1188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xfrm_stateonly_find'>
+        <parameter type-id='a2bff676' name='net' filepath='net/xfrm/xfrm_state.c' line='1188' column='1'/>
+        <parameter type-id='19c2251e' name='mark' filepath='net/xfrm/xfrm_state.c' line='1188' column='1'/>
+        <parameter type-id='19c2251e' name='if_id' filepath='net/xfrm/xfrm_state.c' line='1188' column='1'/>
+        <parameter type-id='47a1c9f4' name='daddr' filepath='net/xfrm/xfrm_state.c' line='1189' column='1'/>
+        <parameter type-id='47a1c9f4' name='saddr' filepath='net/xfrm/xfrm_state.c' line='1189' column='1'/>
+        <parameter type-id='8efea9e5' name='family' filepath='net/xfrm/xfrm_state.c' line='1190' column='1'/>
+        <parameter type-id='f9b06939' name='mode' filepath='net/xfrm/xfrm_state.c' line='1190' column='1'/>
+        <parameter type-id='f9b06939' name='proto' filepath='net/xfrm/xfrm_state.c' line='1190' column='1'/>
+        <parameter type-id='19c2251e' name='reqid' filepath='net/xfrm/xfrm_state.c' line='1190' column='1'/>
+        <return type-id='328dda6e'/>
+      </function-decl>
+      <function-decl name='xhci_address_device' mangled-name='xhci_address_device' filepath='drivers/usb/host/xhci.c' line='4230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_address_device'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='4230' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='drivers/usb/host/xhci.c' line='4230' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_bus_resume' mangled-name='xhci_bus_resume' filepath='drivers/usb/host/xhci-hub.c' line='1759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_bus_resume'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci-hub.c' line='1759' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_bus_suspend' mangled-name='xhci_bus_suspend' filepath='drivers/usb/host/xhci-hub.c' line='1600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_bus_suspend'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci-hub.c' line='1600' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_gen_setup' mangled-name='xhci_gen_setup' filepath='drivers/usb/host/xhci.c' line='5163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_gen_setup'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='5163' column='1'/>
+        <parameter type-id='67f831c0' name='get_quirks' filepath='drivers/usb/host/xhci.c' line='5163' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_get_ep_ctx' mangled-name='xhci_get_ep_ctx' filepath='drivers/usb/host/xhci.h' line='2210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_get_ep_ctx'>
+        <parameter type-id='0c65b409'/>
+        <parameter type-id='971e404f'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='216753a5'/>
+      </function-decl>
+      <function-decl name='xhci_get_slot_ctx' mangled-name='xhci_get_slot_ctx' filepath='drivers/usb/host/xhci.h' line='2209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_get_slot_ctx'>
+        <parameter type-id='0c65b409'/>
+        <parameter type-id='971e404f'/>
+        <return type-id='e42579ca'/>
+      </function-decl>
+      <function-decl name='xhci_handle_event' mangled-name='xhci_handle_event' filepath='drivers/usb/host/xhci-ring.c' line='2950' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_handle_event'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-ring.c' line='2950' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_init_driver' mangled-name='xhci_init_driver' filepath='drivers/usb/host/xhci.c' line='5407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_init_driver'>
+        <parameter type-id='c07d5ba3' name='drv' filepath='drivers/usb/host/xhci.c' line='5407' column='1'/>
+        <parameter type-id='9a55ba3d' name='over' filepath='drivers/usb/host/xhci.c' line='5408' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xhci_resume' mangled-name='xhci_resume' filepath='drivers/usb/host/xhci.c' line='1085' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_resume'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci.c' line='1085' column='1'/>
+        <parameter type-id='b50a4934' name='hibernated' filepath='drivers/usb/host/xhci.c' line='1085' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_ring_alloc' mangled-name='xhci_ring_alloc' filepath='drivers/usb/host/xhci-mem.c' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_ring_alloc'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-mem.c' line='423' column='1'/>
+        <parameter type-id='f0981eeb' name='num_segs' filepath='drivers/usb/host/xhci-mem.c' line='424' column='1'/>
+        <parameter type-id='f0981eeb' name='cycle_state' filepath='drivers/usb/host/xhci-mem.c' line='424' column='1'/>
+        <parameter type-id='b61681fc' name='type' filepath='drivers/usb/host/xhci-mem.c' line='425' column='1'/>
+        <parameter type-id='f0981eeb' name='max_packet' filepath='drivers/usb/host/xhci-mem.c' line='425' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='drivers/usb/host/xhci-mem.c' line='425' column='1'/>
+        <return type-id='52a50596'/>
+      </function-decl>
+      <function-decl name='xhci_ring_free' mangled-name='xhci_ring_free' filepath='drivers/usb/host/xhci.h' line='2057' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_ring_free'>
+        <parameter type-id='0c65b409'/>
+        <parameter type-id='52a50596'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xhci_run' mangled-name='xhci_run' filepath='drivers/usb/host/xhci.c' line='637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_run'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='637' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_suspend' mangled-name='xhci_suspend' filepath='drivers/usb/host/xhci.c' line='971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_suspend'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci.c' line='971' column='1'/>
+        <parameter type-id='b50a4934' name='do_wakeup' filepath='drivers/usb/host/xhci.c' line='971' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='xhci_update_erst_dequeue' mangled-name='xhci_update_erst_dequeue' filepath='drivers/usb/host/xhci-ring.c' line='3026' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_update_erst_dequeue'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-ring.c' line='3026' column='1'/>
+        <parameter type-id='2e0bb6d4' name='event_ring_deq' filepath='drivers/usb/host/xhci-ring.c' line='3027' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='xhci_vendor_get_ops' mangled-name='xhci_vendor_get_ops' filepath='drivers/usb/host/xhci.c' line='4326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_vendor_get_ops'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci.c' line='4326' column='1'/>
+        <return type-id='1e9ca7e3'/>
+      </function-decl>
+    </abi-instr>
+  </abi-corpus>
+</abi-corpus-group>
+
+<!--
+     libabigail: abidw: 2.1.0SOONG BUILD NUMBER PLACEHOLDER
+-->
diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
index 37038a5ccbfbd..28e114556c3e7 100644
--- a/build.config.gki.aarch64
+++ b/build.config.gki.aarch64
@@ -6,6 +6,7 @@ MAKE_GOALS="${MAKE_GOALS}
 Image.lz4
 "
 
+ABI_DEFINITION=android/abi_gki_aarch64.xml
 TIDY_ABI=1
 # Update BUILD.bazel, define_common_kernels() if the list differs from
 # android/abi_gki_aarch64* in the filesystem.
@@ -26,6 +27,7 @@ arch/arm64/boot/Image.lz4
 # Update BUILD.bazel, define_common_kernels() if the value is not 1.
 TRIM_NONLISTED_KMI=${TRIM_NONLISTED_KMI:-1}
 KMI_SYMBOL_LIST_STRICT_MODE=${KMI_SYMBOL_LIST_STRICT_MODE:-1}
+KMI_ENFORCED=1
 
 BUILD_SYSTEM_DLKM=1
 MODULES_LIST=${ROOT_DIR}/${KERNEL_DIR}/android/gki_system_dlkm_modules
-- 
GitLab


From 346987baf5d756ddfabebd7fa44b9bf8103f2ea0 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 24 Feb 2022 14:46:16 +0000
Subject: [PATCH 4120/4878] ANDROID: KVM: arm64: Fix host MMIO DABT handler IPA

The data abort fault IPA obtained from HFAR_EL2 has the bottom 12 bits
zeroed out. This broke the host MMIO DABT handler because the offsets
of accessed MMIO registers were rounded down to the nearest page.

Include FAR_EL2 in the address to fix the issue.

Bug: 220194478
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I2ee7352dba69c673e5d5bddca7e1df9db1b4ce1f
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index aead9a12a9710..603d9e78ca1eb 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -629,6 +629,7 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 	BUG_ON(!__get_fault_info(esr, &fault));
 
 	addr = (fault.hpfar_el2 & HPFAR_MASK) << 8;
+	addr |= fault.far_el2 & FAR_MASK;
 
 	/* See if any subsystem can handle this abort. */
 	if (is_dabt(esr) && !addr_is_memory(addr))
-- 
GitLab


From 686d4dd0f9d8668b58239a5d35459436b6c62d09 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Thu, 24 Feb 2022 14:46:45 +0000
Subject: [PATCH 4121/4878] ANDROID: KVM: arm64: Clear pvmfw pages on clean
 host shutdown

When the host shuts down cleanly under pKVM, it is EL2's responsibility
to clear the pvmfw pages before forwarding the PSCI call onto EL3.

Wipe the pvmfw pages on SYSTEM_OFF, SYSTEM_RESET and SYSTEM_RESET2 calls
from the host, cleaning the zeroed memory to the PoC for good measure.

Reported-by: Andrew Scull <ascull@google.com>
Bug: 196204410
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I0dd2757e355f384813319034c6eed0fa2c2328c2
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h | 1 +
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 8 ++++++++
 arch/arm64/kvm/hyp/nvhe/psci-relay.c   | 6 +++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index ddb64ba46aa41..05bd6c2d04af8 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -99,5 +99,6 @@ static inline bool ipa_in_pvmfw_region(struct kvm_shadow_vm *vm, u64 ipa)
 
 int pkvm_load_pvmfw_pages(struct kvm_shadow_vm *vm, u64 ipa, phys_addr_t phys,
 			  u64 size);
+void pkvm_clear_pvmfw_pages(void);
 
 #endif /* __ARM64_KVM_NVHE_PKVM_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 09dc651647fb4..0b1ec45449d5a 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -712,6 +712,14 @@ int pkvm_load_pvmfw_pages(struct kvm_shadow_vm *vm, u64 ipa, phys_addr_t phys,
 	return 0;
 }
 
+void pkvm_clear_pvmfw_pages(void)
+{
+	void *addr = hyp_phys_to_virt(pvmfw_base);
+
+	memset(addr, 0, pvmfw_size);
+	kvm_flush_dcache_to_poc(addr, pvmfw_size);
+}
+
 /*
  * This function sets the registers on the vcpu to their architecturally defined
  * reset values.
diff --git a/arch/arm64/kvm/hyp/nvhe/psci-relay.c b/arch/arm64/kvm/hyp/nvhe/psci-relay.c
index 08508783ec3d7..cee6d4a2821fd 100644
--- a/arch/arm64/kvm/hyp/nvhe/psci-relay.c
+++ b/arch/arm64/kvm/hyp/nvhe/psci-relay.c
@@ -12,6 +12,7 @@
 #include <uapi/linux/psci.h>
 
 #include <nvhe/memory.h>
+#include <nvhe/pkvm.h>
 #include <nvhe/trap_handler.h>
 
 void kvm_hyp_cpu_entry(unsigned long r0);
@@ -249,6 +250,7 @@ static unsigned long psci_0_2_handler(u64 func_id, struct kvm_cpu_context *host_
 	 */
 	case PSCI_0_2_FN_SYSTEM_OFF:
 	case PSCI_0_2_FN_SYSTEM_RESET:
+		pkvm_clear_pvmfw_pages();
 		return psci_forward(host_ctxt);
 	case PSCI_0_2_FN64_CPU_SUSPEND:
 		return psci_cpu_suspend(func_id, host_ctxt);
@@ -262,9 +264,11 @@ static unsigned long psci_0_2_handler(u64 func_id, struct kvm_cpu_context *host_
 static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)
 {
 	switch (func_id) {
+	case PSCI_1_1_FN64_SYSTEM_RESET2:
+		pkvm_clear_pvmfw_pages();
+		fallthrough;
 	case PSCI_1_0_FN_PSCI_FEATURES:
 	case PSCI_1_0_FN_SET_SUSPEND_MODE:
-	case PSCI_1_1_FN64_SYSTEM_RESET2:
 		return psci_forward(host_ctxt);
 	case PSCI_1_0_FN64_SYSTEM_SUSPEND:
 		return psci_system_suspend(func_id, host_ctxt);
-- 
GitLab


From 1a46c72b06174ff4074aa6fbbc83cf5a126926dd Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 3 Feb 2022 11:48:26 +0000
Subject: [PATCH 4122/4878] ANDROID: KVM: arm64: Memory donated for shadow
 state must be aligned

Check that the donated memory for the hyp shadow vm is paged-aligned.

Bug: 217683487
Reported-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I289cf1704eea9c2036cf26a8d767b101626620ed
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 0b1ec45449d5a..13c72b1b6b9c7 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -547,6 +547,16 @@ static int check_shadow_size(int nr_vcpus, size_t shadow_size)
  *
  * Unmaps the donated memory from the host at stage 2.
  *
+ * kvm: A pointer to the host's struct kvm (host va).
+ * shadow_va: The host va of the area being donated for the shadow state.
+ * 	      Must be page aligned.
+ * shadow_size: The size of the area being donated for the shadow state.
+ * 		Must be a multiple of the page size.
+ * pgd: The host va of the area being donated for the stage-2 PGD for the VM.
+ * 	Must be page aligned. Its size is implied by the VM's VTCR.
+ * Note: An array to the host KVM VCPUs (host VA) is passed via the pgd, as to
+ * 	 not to be dependent on how the VCPU's are layed out in struct kvm.
+ *
  * Return a unique handle to the protected VM on success,
  * negative error code on failure.
  */
@@ -563,6 +573,12 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	int nr_vcpus = 0;
 	int ret = 0;
 
+	/* Check that the donated memory is aligned to page boundaries. */
+	if (!PAGE_ALIGNED(shadow_va) ||
+	    !PAGE_ALIGNED(shadow_size) ||
+	    !PAGE_ALIGNED(pgd))
+		return -EINVAL;
+
 	kvm = kern_hyp_va(kvm);
 	pgd = kern_hyp_va(pgd);
 
-- 
GitLab


From 85bd4ec7870bc842f67c2d93d47a5b7ab7ce3261 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 19 Jan 2022 13:11:20 +0000
Subject: [PATCH 4123/4878] ANDROID: KVM: arm64: Only call kvm_shadow_destroy()
 in protected mode

Non-protected mode doesn't have a shadow state.

Bug: 220829442
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I38f7eb94a8fd02cc796b943cdcda4ff379b1bb64
---
 arch/arm64/kvm/arm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index c243b93040833..2adca153ad688 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -230,7 +230,9 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 	bitmap_free(kvm->arch.pmu_filter);
 
 	kvm_vgic_destroy(kvm);
-	kvm_shadow_destroy(kvm);
+
+	if (is_protected_kvm_enabled())
+		kvm_shadow_destroy(kvm);
 
 	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
 		if (kvm->vcpus[i]) {
-- 
GitLab


From d76e23d7a7f6c9bfe6012727cc3816a2aa366d43 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Fri, 28 Jan 2022 10:33:50 +0000
Subject: [PATCH 4124/4878] ANDROID: KVM: arm64: Do not pass host struct
 pointers to kvm_arch_vcpu_load()

Pass the handle and other safe data instead for hyp to use to
lookup the shadow vcpu. This removes the need to access
potentially unsafe host memory.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I65a2ffc75dbdd34f36cf4d3cc860bbc7a2d9671e
---
 arch/arm64/kvm/arm.c               |  4 +++-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 13 +++++--------
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2adca153ad688..348bdef382c1e 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -576,7 +576,9 @@ nommu:
 	kvm_arch_vcpu_load_debug_state_flags(vcpu);
 
 	if (is_protected_kvm_enabled()) {
-		kvm_call_hyp_nvhe(__pkvm_vcpu_load, vcpu);
+		kvm_call_hyp_nvhe(__pkvm_vcpu_load,
+				  vcpu->kvm->arch.pkvm.shadow_handle,
+				  vcpu->vcpu_idx, vcpu->arch.hcr_el2);
 		kvm_call_hyp(__vgic_v3_restore_vmcr_aprs,
 			     &vcpu->arch.vgic_cpu.vgic_v3);
 	}
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 1086ff2e42454..5946fb5462c0b 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -616,9 +616,10 @@ static void fpsimd_host_restore(void)
 
 static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+	DECLARE_REG(int, shadow_handle, host_ctxt, 1);
+	DECLARE_REG(int, vcpu_idx, host_ctxt, 2);
+	DECLARE_REG(u64, hcr_el2, host_ctxt, 3);
 	struct pkvm_loaded_state *state;
-	int handle;
 
 	/* Why did you bother? */
 	if (!is_protected_kvm_enabled())
@@ -630,10 +631,7 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 	if (state->vcpu)
 		return;
 
-	vcpu = kern_hyp_va(vcpu);
-
-	handle = READ_ONCE(vcpu->arch.pkvm.shadow_handle);
-	state->vcpu = get_shadow_vcpu(handle, vcpu->vcpu_idx);
+	state->vcpu = get_shadow_vcpu(shadow_handle, vcpu_idx);
 
 	if (!state->vcpu)
 		return;
@@ -647,8 +645,7 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 		/* Propagate WFx trapping flags, trap ptrauth */
 		state->vcpu->arch.hcr_el2 &= ~(HCR_TWE | HCR_TWI |
 					       HCR_API | HCR_APK);
-		state->vcpu->arch.hcr_el2 |= vcpu->arch.hcr_el2 & (HCR_TWE |
-								   HCR_TWI);
+		state->vcpu->arch.hcr_el2 |= hcr_el2 & (HCR_TWE | HCR_TWI);
 	}
 }
 
-- 
GitLab


From 9d2df6f63c663aa4a8d284e25dbb11a82fc125a1 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 19 Jan 2022 12:57:50 +0000
Subject: [PATCH 4125/4878] ANDROID: KVM: arm64: move kvm_shadow_destroy to
 pkvm.c for symmetry with create_el2_shadow

Better to have the creation and teardown code in the same file to
understand what's happening. Simplifies subsequent patches.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I07bc8a9e254753f000c4faffffcf52a0d8f3a831
---
 arch/arm64/include/asm/kvm_pkvm.h |  1 +
 arch/arm64/kvm/arm.c              | 25 -------------------------
 arch/arm64/kvm/pkvm.c             | 24 ++++++++++++++++++++++++
 3 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_pkvm.h b/arch/arm64/include/asm/kvm_pkvm.h
index 84e09347c8148..89895ed9c5911 100644
--- a/arch/arm64/include/asm/kvm_pkvm.h
+++ b/arch/arm64/include/asm/kvm_pkvm.h
@@ -22,6 +22,7 @@
 int kvm_arm_vm_ioctl_pkvm(struct kvm *kvm, struct kvm_enable_cap *cap);
 int kvm_init_pvm(struct kvm *kvm, unsigned long type);
 int create_el2_shadow(struct kvm *kvm);
+void kvm_shadow_destroy(struct kvm *kvm);
 
 /*
  * Definitions for features to be allowed or restricted for guest virtual
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 348bdef382c1e..e4dd1e306a725 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -194,31 +194,6 @@ vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 	return VM_FAULT_SIGBUS;
 }
 
-void free_hyp_memcache(struct kvm_hyp_memcache *mc);
-static void kvm_shadow_destroy(struct kvm *kvm)
-{
-	struct kvm_pinned_page *ppage, *tmp;
-	struct mm_struct *mm = current->mm;
-	struct list_head *ppages;
-
-	if (kvm->arch.pkvm.shadow_handle)
-		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
-
-	free_hyp_memcache(&kvm->arch.pkvm.teardown_mc);
-
-	ppages = &kvm->arch.pkvm.pinned_pages;
-	list_for_each_entry_safe(ppage, tmp, ppages, link) {
-		WARN_ON(kvm_call_hyp_nvhe(__pkvm_host_reclaim_page,
-					  page_to_pfn(ppage->page)));
-		cond_resched();
-
-		account_locked_vm(mm, 1, false);
-		unpin_user_pages_dirty_lock(&ppage->page, 1, true);
-		list_del(&ppage->link);
-		kfree(ppage);
-	}
-}
-
 /**
  * kvm_arch_destroy_vm - destroy the VM data structure
  * @kvm:	pointer to the KVM struct
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index c79e985bbdd5b..0d926503cd6a7 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -199,6 +199,30 @@ int create_el2_shadow(struct kvm *kvm)
 	return ret;
 }
 
+void kvm_shadow_destroy(struct kvm *kvm)
+{
+	struct kvm_pinned_page *ppage, *tmp;
+	struct mm_struct *mm = current->mm;
+	struct list_head *ppages;
+
+	if (kvm->arch.pkvm.shadow_handle)
+		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
+
+	free_hyp_memcache(&kvm->arch.pkvm.teardown_mc);
+
+	ppages = &kvm->arch.pkvm.pinned_pages;
+	list_for_each_entry_safe(ppage, tmp, ppages, link) {
+		WARN_ON(kvm_call_hyp_nvhe(__pkvm_host_reclaim_page,
+					  page_to_pfn(ppage->page)));
+		cond_resched();
+
+		account_locked_vm(mm, 1, false);
+		unpin_user_pages_dirty_lock(&ppage->page, 1, true);
+		list_del(&ppage->link);
+		kfree(ppage);
+	}
+}
+
 static int __init pkvm_firmware_rmem_err(struct reserved_mem *rmem,
 					 const char *reason)
 {
-- 
GitLab


From 606faee906ae8f794e4ec3e53d7b9738a760c3ab Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Fri, 28 Jan 2022 13:37:28 +0000
Subject: [PATCH 4126/4878] ANDROID: KVM: arm64: Do not pass host struct
 pointers to __pkvm_teardown_shadow()

Pass the handle and other safe data instead for hyp to use to
lookup the shadow vcpu. This removes the need to access
potentially unsafe host memory.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Iff01f981aad8f1a064f8a8147e5443807558884c
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c     | 4 ++--
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 8 ++------
 arch/arm64/kvm/pkvm.c                  | 3 ++-
 4 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 05bd6c2d04af8..9e9615a061aa3 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -66,7 +66,7 @@ extern phys_addr_t pvmfw_base;
 extern phys_addr_t pvmfw_size;
 
 int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size, void *pgd);
-int __pkvm_teardown_shadow(struct kvm *kvm);
+int __pkvm_teardown_shadow(int shadow_handle);
 struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx);
 void put_shadow_vcpu(struct kvm_vcpu *vcpu);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 5946fb5462c0b..2b23cbf3c3e26 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -966,9 +966,9 @@ static void handle___pkvm_init_shadow(struct kvm_cpu_context *host_ctxt)
 
 static void handle___pkvm_teardown_shadow(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct kvm *, host_kvm, host_ctxt, 1);
+	DECLARE_REG(int, shadow_handle, host_ctxt, 1);
 
-	cpu_reg(host_ctxt, 1) = __pkvm_teardown_shadow(host_kvm);
+	cpu_reg(host_ctxt, 1) = __pkvm_teardown_shadow(shadow_handle);
 }
 
 typedef void (*hcall_t)(struct kvm_cpu_context *);
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 13c72b1b6b9c7..b69f61ce7db3b 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -637,21 +637,17 @@ err:
 	return ret;
 }
 
-int __pkvm_teardown_shadow(struct kvm *kvm)
+int __pkvm_teardown_shadow(int shadow_handle)
 {
 	struct kvm_hyp_memcache *mc;
 	struct kvm_shadow_vm *vm;
 	struct kvm *host_kvm;
 	size_t shadow_size;
-	int err, shadow_handle;
+	int err;
 	u64 pfn;
 	u64 nr_pages;
 	void *addr;
 
-	kvm = kern_hyp_va(kvm);
-
-	shadow_handle = kvm->arch.pkvm.shadow_handle;
-
 	/* Lookup then remove entry from the shadow table. */
 	hyp_spin_lock(&shadow_lock);
 	vm = find_shadow_by_handle(shadow_handle);
diff --git a/arch/arm64/kvm/pkvm.c b/arch/arm64/kvm/pkvm.c
index 0d926503cd6a7..ed9d9b189bb85 100644
--- a/arch/arm64/kvm/pkvm.c
+++ b/arch/arm64/kvm/pkvm.c
@@ -206,7 +206,8 @@ void kvm_shadow_destroy(struct kvm *kvm)
 	struct list_head *ppages;
 
 	if (kvm->arch.pkvm.shadow_handle)
-		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow, kvm));
+		WARN_ON(kvm_call_hyp_nvhe(__pkvm_teardown_shadow,
+					  kvm->arch.pkvm.shadow_handle));
 
 	free_hyp_memcache(&kvm->arch.pkvm.teardown_mc);
 
-- 
GitLab


From 5acc639a717d70fe829d69130e1e63d5f6e27c90 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Mon, 14 Feb 2022 10:12:54 +0000
Subject: [PATCH 4127/4878] ANDROID: KVM: arm64: Do not pass host struct
 pointers to pkvm_host_donate_guest()

This function only works for loaded vcpus and no more information
is needed by hyp. This removes the need to access potentially
unsafe host memory.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I2dae77b900139bd61e91fcff52beedffa2746d9b
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 7 ++++---
 arch/arm64/kvm/mmu.c               | 6 +++---
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 2b23cbf3c3e26..2e85ee068bb23 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -727,20 +727,21 @@ static void handle___pkvm_host_donate_guest(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, pfn, host_ctxt, 1);
 	DECLARE_REG(u64, gfn, host_ctxt, 2);
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 3);
+	struct kvm_vcpu *host_vcpu;
 	struct pkvm_loaded_state *state;
 	int ret = -EINVAL;
 
 	if (!is_protected_kvm_enabled())
 		goto out;
 
-	vcpu = kern_hyp_va(vcpu);
 	state = this_cpu_ptr(&loaded_state);
 	if (!state->vcpu)
 		goto out;
 
+	host_vcpu = state->vcpu->arch.pkvm.host_vcpu;
+
 	/* Topup shadow memcache with the host's */
-	ret = pkvm_refill_memcache(state->vcpu, vcpu);
+	ret = pkvm_refill_memcache(state->vcpu, host_vcpu);
 	if (!ret) {
 		if (state->is_protected)
 			ret = __pkvm_host_donate_guest(pfn, gfn, state->vcpu);
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 4b7fbb0fc58ff..80fed4cf0512a 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1143,12 +1143,12 @@ static int sanitise_mte_tags(struct kvm *kvm, kvm_pfn_t pfn,
 	return 0;
 }
 
-static int pkvm_host_donate_guest(u64 pfn, u64 gfn, struct kvm_vcpu *vcpu)
+static int pkvm_host_donate_guest(u64 pfn, u64 gfn)
 {
 	struct arm_smccc_res res;
 
 	arm_smccc_1_1_hvc(KVM_HOST_SMCCC_FUNC(__pkvm_host_donate_guest),
-			  pfn, gfn, vcpu, &res);
+			  pfn, gfn, &res);
 	WARN_ON(res.a0 != SMCCC_RET_SUCCESS);
 
 	/*
@@ -1200,7 +1200,7 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 
 	spin_lock(&kvm->mmu_lock);
 	pfn = page_to_pfn(page);
-	ret = pkvm_host_donate_guest(pfn, fault_ipa >> PAGE_SHIFT, vcpu);
+	ret = pkvm_host_donate_guest(pfn, fault_ipa >> PAGE_SHIFT);
 	if (ret) {
 		if (ret == -EAGAIN)
 			ret = 0;
-- 
GitLab


From 1698f20d7e4b13e498cfc23e184ad4eb15952e7e Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 24 Feb 2022 14:41:13 +0000
Subject: [PATCH 4128/4878] ANDROID: KVM: arm64: Refactor __sync_vcpu_state()

Split it into two functions, sync/flush, which correspond to the
direction the data is going. Remove the need to explicitly pass
the host vcpu since the shadow already has a trusted pointer to
it.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Ibb5a34d66254788782b219565833e061c664abb2
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 2e85ee068bb23..69e5095448045 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -485,7 +485,7 @@ static void sync_timer_state(struct pkvm_loaded_state *state)
 	__vcpu_sys_reg(shadow_vcpu, CNTV_CTL_EL0) = read_sysreg_el0(SYS_CNTV_CTL);
 }
 
-static void __sync_vcpu_state(struct kvm_vcpu *from_vcpu,
+static void __copy_vcpu_state(const struct kvm_vcpu *from_vcpu,
 			      struct kvm_vcpu *to_vcpu)
 {
 	int i;
@@ -507,6 +507,20 @@ static void __sync_vcpu_state(struct kvm_vcpu *from_vcpu,
 	}
 }
 
+static void __sync_vcpu_state(struct kvm_vcpu *shadow_vcpu)
+{
+	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
+
+	__copy_vcpu_state(shadow_vcpu, host_vcpu);
+}
+
+static void __flush_vcpu_state(struct kvm_vcpu *shadow_vcpu)
+{
+	struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
+
+	__copy_vcpu_state(host_vcpu, shadow_vcpu);
+}
+
 static void flush_shadow_state(struct pkvm_loaded_state *state)
 {
 	struct kvm_vcpu *shadow_vcpu = state->vcpu;
@@ -524,7 +538,7 @@ static void flush_shadow_state(struct pkvm_loaded_state *state)
 	 */
 	if (!state->is_protected) {
 		if (READ_ONCE(host_vcpu->arch.flags) & KVM_ARM64_PKVM_STATE_DIRTY)
-			__sync_vcpu_state(host_vcpu, shadow_vcpu);
+			__flush_vcpu_state(shadow_vcpu);
 
 		state->vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS & ~(HCR_RW | HCR_TWI | HCR_TWE);
 		state->vcpu->arch.hcr_el2 |= host_vcpu->arch.hcr_el2;
@@ -664,7 +678,7 @@ static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 
 			if (!state->is_protected &&
 			    !(READ_ONCE(vcpu->arch.flags) & KVM_ARM64_PKVM_STATE_DIRTY))
-				__sync_vcpu_state(state->vcpu, vcpu);
+				__sync_vcpu_state(state->vcpu);
 
 			put_shadow_vcpu(state->vcpu);
 
@@ -687,7 +701,7 @@ static void handle___pkvm_vcpu_sync_state(struct kvm_cpu_context *host_ctxt)
 		    state->vcpu->arch.pkvm.host_vcpu != vcpu)
 			return;
 
-		__sync_vcpu_state(state->vcpu, vcpu);
+		__sync_vcpu_state(state->vcpu);
 	}
 }
 
-- 
GitLab


From 3d9a4824c6397103323afb888d5794a81078c8c9 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Mon, 14 Feb 2022 10:30:41 +0000
Subject: [PATCH 4129/4878] ANDROID: KVM: arm64: Do not pass host struct
 pointers to pkvm_vcpu_sync_state()

This function only works for loaded vcpus and no more information
is needed by hyp. This removes the need to access potentially
unsafe host memory.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Id705e9d8f1d147d474cb81af4ce974bbe45f3614
---
 arch/arm64/kvm/handle_exit.c       | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 7 +------
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index ef85cf6ce5cbe..2b988ba29f408 100644
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -210,7 +210,7 @@ static int handle_trap_exceptions(struct kvm_vcpu *vcpu)
 	if (is_protected_kvm_enabled() && !kvm_vm_is_protected(vcpu->kvm)) {
 		preempt_disable();
 		if (!(vcpu->arch.flags & KVM_ARM64_PKVM_STATE_DIRTY)) {
-			kvm_call_hyp_nvhe(__pkvm_vcpu_sync_state, vcpu);
+			kvm_call_hyp_nvhe(__pkvm_vcpu_sync_state);
 			vcpu->arch.flags |= KVM_ARM64_PKVM_STATE_DIRTY;
 		}
 		preempt_enable();
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 69e5095448045..b3b8e2d78b91b 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -690,15 +690,10 @@ static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 
 static void handle___pkvm_vcpu_sync_state(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
-
 	if (unlikely(is_protected_kvm_enabled())) {
 		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-		vcpu = kern_hyp_va(vcpu);
-
-		if (!state->vcpu || state->is_protected ||
-		    state->vcpu->arch.pkvm.host_vcpu != vcpu)
+		if (!state->vcpu || state->is_protected)
 			return;
 
 		__sync_vcpu_state(state->vcpu);
-- 
GitLab


From b93f71d7eb4e10e00206da6abca0516756c7a0ba Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Mon, 14 Feb 2022 10:41:30 +0000
Subject: [PATCH 4130/4878] ANDROID: KVM: arm64: Do not pass host struct
 pointers to pkvm_vcpu_put()

This function only works for loaded vcpus and no more information
is needed by hyp. This removes the need to access potentially
unsafe host memory.

Bug: 220830416
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: I09cb49b06e541bba09e91ce5885b963b88a3c315
---
 arch/arm64/kvm/arm.c               | 2 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 8 +++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index e4dd1e306a725..1cc9ce212c1ed 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -564,7 +564,7 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 	if (is_protected_kvm_enabled()) {
 		kvm_call_hyp(__vgic_v3_save_vmcr_aprs,
 			     &vcpu->arch.vgic_cpu.vgic_v3);
-		kvm_call_hyp_nvhe(__pkvm_vcpu_put, vcpu);
+		kvm_call_hyp_nvhe(__pkvm_vcpu_put);
 
 		/* __pkvm_vcpu_put implies a sync of the state */
 		if (!kvm_vm_is_protected(vcpu->kvm))
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index b3b8e2d78b91b..926a7a9915e7e 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -665,19 +665,17 @@ static void handle___pkvm_vcpu_load(struct kvm_cpu_context *host_ctxt)
 
 static void handle___pkvm_vcpu_put(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
-
 	if (unlikely(is_protected_kvm_enabled())) {
 		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
 
-		vcpu = kern_hyp_va(vcpu);
+		if (state->vcpu) {
+			struct kvm_vcpu *host_vcpu = state->vcpu->arch.pkvm.host_vcpu;
 
-		if (state->vcpu && state->vcpu->arch.pkvm.host_vcpu == vcpu) {
 			if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED)
 				fpsimd_host_restore();
 
 			if (!state->is_protected &&
-			    !(READ_ONCE(vcpu->arch.flags) & KVM_ARM64_PKVM_STATE_DIRTY))
+			    !(READ_ONCE(host_vcpu->arch.flags) & KVM_ARM64_PKVM_STATE_DIRTY))
 				__sync_vcpu_state(state->vcpu);
 
 			put_shadow_vcpu(state->vcpu);
-- 
GitLab


From f0b2b92abcbd8b004f12baece63b3b3426aee65c Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 8 Feb 2022 16:10:02 +0000
Subject: [PATCH 4131/4878] ANDROID: KVM: arm64: Change variable names to avoid
 confusing size and count

Change the variable names to avoid confusion between total memory
area size or just the number of pages.

Use host_kvm.vtcr to make future refactoring easier.

Simplifies future fixes of the bug below.

Bug: 216808671
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Ica0a0dfcf839dae0625a26a2095e56212385bbe7
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index b69f61ce7db3b..31147eadd71a1 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -568,8 +568,9 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	struct kvm_shadow_vm *vm = kern_hyp_va(shadow_va);
 	phys_addr_t shadow_pa = hyp_virt_to_phys(vm);
 	u64 pfn = hyp_phys_to_pfn(shadow_pa);
-	u64 nr_pages = shadow_size >> PAGE_SHIFT;
-	u64 pgd_size;
+	u64 nr_shadow_pages = shadow_size >> PAGE_SHIFT;
+	u64 nr_pgd_pages;
+	size_t pgd_size;
 	int nr_vcpus = 0;
 	int ret = 0;
 
@@ -592,15 +593,16 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	if (ret)
 		goto err;
 
-	ret = __pkvm_host_donate_hyp(pfn, nr_pages);
+	ret = __pkvm_host_donate_hyp(pfn, nr_shadow_pages);
 	if (ret)
 		goto err;
 
 	/* Ensure we're working with a clean slate. */
 	memset(vm, 0, shadow_size);
 	vm->arch.vtcr = host_kvm.arch.vtcr;
-	pgd_size = kvm_pgtable_stage2_pgd_size(vm->arch.vtcr) >> PAGE_SHIFT;
-	ret =  __pkvm_host_donate_hyp(hyp_virt_to_pfn(pgd), pgd_size);
+	pgd_size = kvm_pgtable_stage2_pgd_size(host_kvm.arch.vtcr);
+	nr_pgd_pages = pgd_size >> PAGE_SHIFT;
+	ret = __pkvm_host_donate_hyp(hyp_virt_to_pfn(pgd), nr_pgd_pages);
 	if (ret)
 		goto err_remove_mappings;
 
@@ -623,7 +625,7 @@ err_remove_shadow_table:
 	remove_shadow_table(vm->shadow_handle);
 
 err_remove_pgd:
-	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), pgd_size));
+	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), nr_pgd_pages));
 
 err_remove_mappings:
 	unpin_host_vcpus(vm);
-- 
GitLab


From 42c116e0fa4ab8630e05285db141f5d45fd7a235 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Tue, 18 Jan 2022 10:32:07 +0000
Subject: [PATCH 4132/4878] ANDROID: KVM: arm64: Do not use kvm.created_vcpus
 to track the number of pinned vcpus

Do not use variable to reflect something it wasn't intended to reflect, i.e.,
number of created vcpus vs number of vcpus pinned so far.

Consolidate pinning and error handling to the same level to make
code more readable.

Ensure that the donated pgd is big enough for all vcpus.

Bug: 220830416
Bug: 216808671
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Ibf41a93bb1175e59b3ab82d2f735f25505d2892a
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 55 ++++++++++++++++++++++++----------
 1 file changed, 39 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 31147eadd71a1..fb72ef154eb16 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -342,14 +342,37 @@ static int copy_features(struct kvm_vcpu *shadow_vcpu, struct kvm_vcpu *host_vcp
 	return 0;
 }
 
-static void unpin_host_vcpus(struct kvm_shadow_vm *vm)
+static void unpin_host_vcpus(struct shadow_vcpu_state *shadow_vcpus, int nr_vcpus)
 {
 	int i;
 
-	for (i = 0; i < vm->created_vcpus; i++) {
-		struct kvm_vcpu *vcpu = vm->vcpus[i]->arch.pkvm.host_vcpu;
-		hyp_unpin_shared_mem(vcpu, vcpu + 1);
+	for (i = 0; i < nr_vcpus; i++) {
+		struct kvm_vcpu *host_vcpu = shadow_vcpus[i].vcpu.arch.pkvm.host_vcpu;
+
+		hyp_unpin_shared_mem(host_vcpu, host_vcpu + 1);
+	}
+}
+
+static int set_host_vcpus(struct shadow_vcpu_state *shadow_vcpus, int nr_vcpus,
+			  struct kvm_vcpu **vcpu_array, size_t vcpu_array_size)
+{
+	int i;
+
+	if (vcpu_array_size < sizeof(*vcpu_array) * nr_vcpus)
+		return -EINVAL;
+
+	for (i = 0; i < nr_vcpus; i++) {
+		struct kvm_vcpu *host_vcpu = kern_hyp_va(vcpu_array[i]);
+
+		if (hyp_pin_shared_mem(host_vcpu, host_vcpu + 1)) {
+			unpin_host_vcpus(shadow_vcpus, i);
+			return -EBUSY;
+		}
+
+		shadow_vcpus[i].vcpu.arch.pkvm.host_vcpu = host_vcpu;
 	}
+
+	return 0;
 }
 
 static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
@@ -359,20 +382,14 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
 	int ret;
 
 	vm->host_kvm = kvm;
-	vm->created_vcpus = 0;
+	vm->created_vcpus = nr_vcpus;
 	vm->arch.pkvm.pvmfw_load_addr = kvm->arch.pkvm.pvmfw_load_addr;
 	vm->arch.pkvm.enabled = READ_ONCE(kvm->arch.pkvm.enabled);
 
 	for (i = 0; i < nr_vcpus; i++) {
-		struct kvm_vcpu *host_vcpu = kern_hyp_va(vcpu_array[i]);
 		struct shadow_vcpu_state *shadow_state = &vm->shadow_vcpus[i];
 		struct kvm_vcpu *shadow_vcpu = &shadow_state->vcpu;
-
-		ret = hyp_pin_shared_mem(host_vcpu, host_vcpu + 1);
-		if (ret)
-			return -EBUSY;
-
-		vm->created_vcpus++;
+		struct kvm_vcpu *host_vcpu = shadow_vcpu->arch.pkvm.host_vcpu;
 
 		shadow_vcpu->kvm = kvm;
 		shadow_vcpu->vcpu_id = host_vcpu->vcpu_id;
@@ -391,7 +408,6 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
 
 		shadow_vcpu->arch.hw_mmu = &vm->arch.mmu;
 		shadow_vcpu->arch.pkvm.shadow_handle = vm->shadow_handle;
-		shadow_vcpu->arch.pkvm.host_vcpu = host_vcpu;
 		shadow_vcpu->arch.pkvm.shadow_vm = vm;
 		shadow_vcpu->arch.power_off = true;
 
@@ -599,6 +615,7 @@ int __pkvm_init_shadow(struct kvm *kvm,
 
 	/* Ensure we're working with a clean slate. */
 	memset(vm, 0, shadow_size);
+
 	vm->arch.vtcr = host_kvm.arch.vtcr;
 	pgd_size = kvm_pgtable_stage2_pgd_size(host_kvm.arch.vtcr);
 	nr_pgd_pages = pgd_size >> PAGE_SHIFT;
@@ -606,10 +623,14 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	if (ret)
 		goto err_remove_mappings;
 
+	ret = set_host_vcpus(vm->shadow_vcpus, nr_vcpus, pgd, pgd_size);
+	if (ret)
+		goto err_remove_pgd;
+
 	/* Add the entry to the shadow table. */
 	ret = insert_shadow_table(kvm, vm, shadow_size);
 	if (ret < 0)
-		goto err_remove_pgd;
+		goto err_unpin_host_vcpus;
 
 	ret = init_shadow_structs(kvm, vm, pgd, nr_vcpus);
 	if (ret < 0)
@@ -624,11 +645,13 @@ int __pkvm_init_shadow(struct kvm *kvm,
 err_remove_shadow_table:
 	remove_shadow_table(vm->shadow_handle);
 
+err_unpin_host_vcpus:
+	unpin_host_vcpus(vm->shadow_vcpus, nr_vcpus);
+
 err_remove_pgd:
 	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), nr_pgd_pages));
 
 err_remove_mappings:
-	unpin_host_vcpus(vm);
 	/* Clear the donated shadow memory on failure to avoid data leaks. */
 	memset(vm, 0, shadow_size);
 	WARN_ON(__pkvm_hyp_donate_host(hyp_phys_to_pfn(shadow_pa),
@@ -669,7 +692,7 @@ int __pkvm_teardown_shadow(int shadow_handle)
 	/* Reclaim guest pages, and page-table pages */
 	mc = &vm->host_kvm->arch.pkvm.teardown_mc;
 	reclaim_guest_pages(vm, mc);
-	unpin_host_vcpus(vm);
+	unpin_host_vcpus(vm->shadow_vcpus, vm->created_vcpus);
 
 	/* Push the metadata pages to the teardown memcache */
 	shadow_size = vm->shadow_area_size;
-- 
GitLab


From 8692c9e878f457aec398af35365a9a30376961b0 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Wed, 23 Feb 2022 11:01:59 +0000
Subject: [PATCH 4133/4878] ANDROID: KVM: arm64: get_shadow_vcpu()'s vcpu_idx
 should be unsigned

Bug: 216808671
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Ib6a1dfebfa21e14fbb098ef8c4e21f72ef701458
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h | 2 +-
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index 9e9615a061aa3..e4983f5cbd0f8 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -67,7 +67,7 @@ extern phys_addr_t pvmfw_size;
 
 int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size, void *pgd);
 int __pkvm_teardown_shadow(int shadow_handle);
-struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx);
+struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, unsigned int vcpu_idx);
 void put_shadow_vcpu(struct kvm_vcpu *vcpu);
 
 u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id);
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index fb72ef154eb16..8bd9c525f2013 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -257,14 +257,14 @@ static struct kvm_shadow_vm *find_shadow_by_handle(int shadow_handle)
 	return shadow_table[shadow_index];
 }
 
-struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, int vcpu_idx)
+struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, unsigned int vcpu_idx)
 {
 	struct kvm_vcpu *vcpu = NULL;
 	struct kvm_shadow_vm *vm;
 
 	hyp_spin_lock(&shadow_lock);
 	vm = find_shadow_by_handle(shadow_handle);
-	if (!vm || vcpu_idx < 0 || vm->created_vcpus <= vcpu_idx)
+	if (!vm || vm->created_vcpus <= vcpu_idx)
 		goto unlock;
 	vcpu = &vm->shadow_vcpus[vcpu_idx].vcpu;
 
-- 
GitLab


From c5feaf141e153c6802ab97296a06f98ba06f6756 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 11 Feb 2022 18:56:46 -0800
Subject: [PATCH 4134/4878] f2fs: fix missing free nid in
 f2fs_handle_failed_inode

This patch fixes xfstests/generic/475 failure.

[  293.680694] F2FS-fs (dm-1): May loss orphan inode, run fsck to fix.
[  293.685358] Buffer I/O error on dev dm-1, logical block 8388592, async page read
[  293.691527] Buffer I/O error on dev dm-1, logical block 8388592, async page read
[  293.691764] sh (7615): drop_caches: 3
[  293.691819] sh (7616): drop_caches: 3
[  293.694017] Buffer I/O error on dev dm-1, logical block 1, async page read
[  293.695659] sh (7618): drop_caches: 3
[  293.696979] sh (7617): drop_caches: 3
[  293.700290] sh (7623): drop_caches: 3
[  293.708621] sh (7626): drop_caches: 3
[  293.711386] sh (7628): drop_caches: 3
[  293.711825] sh (7627): drop_caches: 3
[  293.716738] sh (7630): drop_caches: 3
[  293.719613] sh (7632): drop_caches: 3
[  293.720971] sh (7633): drop_caches: 3
[  293.727741] sh (7634): drop_caches: 3
[  293.730783] sh (7636): drop_caches: 3
[  293.732681] sh (7635): drop_caches: 3
[  293.732988] sh (7637): drop_caches: 3
[  293.738836] sh (7639): drop_caches: 3
[  293.740568] sh (7641): drop_caches: 3
[  293.743053] sh (7640): drop_caches: 3
[  293.821889] ------------[ cut here ]------------
[  293.824654] kernel BUG at fs/f2fs/node.c:3334!
[  293.826226] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[  293.828713] CPU: 0 PID: 7653 Comm: umount Tainted: G           OE     5.17.0-rc1-custom #1
[  293.830946] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
[  293.832526] RIP: 0010:f2fs_destroy_node_manager+0x33f/0x350 [f2fs]
[  293.833905] Code: e8 d6 3d f9 f9 48 8b 45 d0 65 48 2b 04 25 28 00 00 00 75 1a 48 81 c4 28 03 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b
[  293.837783] RSP: 0018:ffffb04ec31e7a20 EFLAGS: 00010202
[  293.839062] RAX: 0000000000000001 RBX: ffff9df947db2eb8 RCX: 0000000080aa0072
[  293.840666] RDX: 0000000000000000 RSI: ffffe86c0432a140 RDI: ffffffffc0b72a21
[  293.842261] RBP: ffffb04ec31e7d70 R08: ffff9df94ca85780 R09: 0000000080aa0072
[  293.843909] R10: ffff9df94ca85700 R11: ffff9df94e1ccf58 R12: ffff9df947db2e00
[  293.845594] R13: ffff9df947db2ed0 R14: ffff9df947db2eb8 R15: ffff9df947db2eb8
[  293.847855] FS:  00007f5a97379800(0000) GS:ffff9dfa77c00000(0000) knlGS:0000000000000000
[  293.850647] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  293.852940] CR2: 00007f5a97528730 CR3: 000000010bc76005 CR4: 0000000000370ef0
[  293.854680] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  293.856423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  293.858380] Call Trace:
[  293.859302]  <TASK>
[  293.860311]  ? ttwu_do_wakeup+0x1c/0x170
[  293.861800]  ? ttwu_do_activate+0x6d/0xb0
[  293.863057]  ? _raw_spin_unlock_irqrestore+0x29/0x40
[  293.864411]  ? try_to_wake_up+0x9d/0x5e0
[  293.865618]  ? debug_smp_processor_id+0x17/0x20
[  293.866934]  ? debug_smp_processor_id+0x17/0x20
[  293.868223]  ? free_unref_page+0xbf/0x120
[  293.869470]  ? __free_slab+0xcb/0x1c0
[  293.870614]  ? preempt_count_add+0x7a/0xc0
[  293.871811]  ? __slab_free+0xa0/0x2d0
[  293.872918]  ? __wake_up_common_lock+0x8a/0xc0
[  293.874186]  ? __slab_free+0xa0/0x2d0
[  293.875305]  ? free_inode_nonrcu+0x20/0x20
[  293.876466]  ? free_inode_nonrcu+0x20/0x20
[  293.877650]  ? debug_smp_processor_id+0x17/0x20
[  293.878949]  ? call_rcu+0x11a/0x240
[  293.880060]  ? f2fs_destroy_stats+0x59/0x60 [f2fs]
[  293.881437]  ? kfree+0x1fe/0x230
[  293.882674]  f2fs_put_super+0x160/0x390 [f2fs]
[  293.883978]  generic_shutdown_super+0x7a/0x120
[  293.885274]  kill_block_super+0x27/0x50
[  293.886496]  kill_f2fs_super+0x7f/0x100 [f2fs]
[  293.887806]  deactivate_locked_super+0x35/0xa0
[  293.889271]  deactivate_super+0x40/0x50
[  293.890513]  cleanup_mnt+0x139/0x190
[  293.891689]  __cleanup_mnt+0x12/0x20
[  293.892850]  task_work_run+0x64/0xa0
[  293.894035]  exit_to_user_mode_prepare+0x1b7/0x1c0
[  293.895409]  syscall_exit_to_user_mode+0x27/0x50
[  293.896872]  do_syscall_64+0x48/0xc0
[  293.898090]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  293.899517] RIP: 0033:0x7f5a975cd25b

Fixes: 7735730d39d7 ("f2fs: fix to propagate error from __get_meta_page()")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 1d85f1e58d32d..8507e92b95d9c 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -885,6 +885,7 @@ void f2fs_handle_failed_inode(struct inode *inode)
 	err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
 	if (err) {
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		set_inode_flag(inode, FI_FREE_NID);
 		f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
 		goto out;
 	}
-- 
GitLab


From 150ce3cd60701b8638dac3228a73e5f14f9b0ed2 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 22 Feb 2022 10:43:13 -0800
Subject: [PATCH 4135/4878] f2fs: Restore rwsem lockdep support

Lockdep uses lock class keys in its analysis. init_rwsem() instantiates
one lock class key with each init_rwsem() user as follows:

 #define init_rwsem(sem)                                        \
 do {                                                           \
         static struct lock_class_key __key;                    \
                                                                \
         __init_rwsem((sem), #sem, &__key);                     \
 } while (0)

Commit e4544b63a7ee ("f2fs: move f2fs to use reader-unfair rwsems") reduced
the number of lock class keys from one per init_rwsem() user to one per
file in which init_f2fs_rwsem() is used. This causes the same lock class key
to be associated with multiple f2fs rwsems and also triggers a number of
false positive lockdep deadlock reports. Fix this by again instantiating one
lock class key with each init_f2fs_rwsem() caller.

Cc: Tim Murray <timmurray@google.com>
Reported-by: syzbot+0b9cadf5fc45a98a5083@syzkaller.appspotmail.com
Fixes: e4544b63a7ee ("f2fs: move f2fs to use reader-unfair rwsems")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/f2fs.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index bc0c2094894a0..0f98763d03568 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2114,9 +2114,17 @@ static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
 	spin_unlock_irqrestore(&sbi->cp_lock, flags);
 }
 
-static inline void init_f2fs_rwsem(struct f2fs_rwsem *sem)
+#define init_f2fs_rwsem(sem)					\
+do {								\
+	static struct lock_class_key __key;			\
+								\
+	__init_f2fs_rwsem((sem), #sem, &__key);			\
+} while (0)
+
+static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
+		const char *sem_name, struct lock_class_key *key)
 {
-	init_rwsem(&sem->internal_rwsem);
+	__init_rwsem(&sem->internal_rwsem, sem_name, key);
 	init_waitqueue_head(&sem->read_waiters);
 }
 
-- 
GitLab


From 185e61d6079cc9f1833c6fd1d765ba289e3019f7 Mon Sep 17 00:00:00 2001
From: Juhyung Park <qkrwngud825@gmail.com>
Date: Tue, 15 Feb 2022 17:27:21 +0900
Subject: [PATCH 4136/4878] f2fs: quota: fix loop condition at
 f2fs_quota_sync()

cnt should be passed to sb_has_quota_active() instead of type to check
active quota properly.

Moreover, when the type is -1, the compiler with enough inline knowledge
can discard sb_has_quota_active() check altogether, causing a NULL pointer
dereference at the following inode_lock(dqopt->files[cnt]):

[    2.796010] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0
[    2.796024] Mem abort info:
[    2.796025]   ESR = 0x96000005
[    2.796028]   EC = 0x25: DABT (current EL), IL = 32 bits
[    2.796029]   SET = 0, FnV = 0
[    2.796031]   EA = 0, S1PTW = 0
[    2.796032] Data abort info:
[    2.796034]   ISV = 0, ISS = 0x00000005
[    2.796035]   CM = 0, WnR = 0
[    2.796046] user pgtable: 4k pages, 39-bit VAs, pgdp=00000003370d1000
[    2.796048] [00000000000000a0] pgd=0000000000000000, pud=0000000000000000
[    2.796051] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[    2.796056] CPU: 7 PID: 640 Comm: f2fs_ckpt-259:7 Tainted: G S                5.4.179-arter97-r8-64666-g2f16e087f9d8 #1
[    2.796057] Hardware name: Qualcomm Technologies, Inc. Lahaina MTP lemonadep (DT)
[    2.796059] pstate: 80c00005 (Nzcv daif +PAN +UAO)
[    2.796065] pc : down_write+0x28/0x70
[    2.796070] lr : f2fs_quota_sync+0x100/0x294
[    2.796071] sp : ffffffa3f48ffc30
[    2.796073] x29: ffffffa3f48ffc30 x28: 0000000000000000
[    2.796075] x27: ffffffa3f6d718b8 x26: ffffffa415fe9d80
[    2.796077] x25: ffffffa3f7290048 x24: 0000000000000001
[    2.796078] x23: 0000000000000000 x22: ffffffa3f7290000
[    2.796080] x21: ffffffa3f72904a0 x20: ffffffa3f7290110
[    2.796081] x19: ffffffa3f77a9800 x18: ffffffc020aae038
[    2.796083] x17: ffffffa40e38e040 x16: ffffffa40e38e6d0
[    2.796085] x15: ffffffa40e38e6cc x14: ffffffa40e38e6d0
[    2.796086] x13: 00000000000004f6 x12: 00162c44ff493000
[    2.796088] x11: 0000000000000400 x10: ffffffa40e38c948
[    2.796090] x9 : 0000000000000000 x8 : 00000000000000a0
[    2.796091] x7 : 0000000000000000 x6 : 0000d1060f00002a
[    2.796093] x5 : ffffffa3f48ff718 x4 : 000000000000000d
[    2.796094] x3 : 00000000060c0000 x2 : 0000000000000001
[    2.796096] x1 : 0000000000000000 x0 : 00000000000000a0
[    2.796098] Call trace:
[    2.796100]  down_write+0x28/0x70
[    2.796102]  f2fs_quota_sync+0x100/0x294
[    2.796104]  block_operations+0x120/0x204
[    2.796106]  f2fs_write_checkpoint+0x11c/0x520
[    2.796107]  __checkpoint_and_complete_reqs+0x7c/0xd34
[    2.796109]  issue_checkpoint_thread+0x6c/0xb8
[    2.796112]  kthread+0x138/0x414
[    2.796114]  ret_from_fork+0x10/0x18
[    2.796117] Code: aa0803e0 aa1f03e1 52800022 aa0103e9 (c8e97d02)
[    2.796120] ---[ end trace 96e942e8eb6a0b53 ]---
[    2.800116] Kernel panic - not syncing: Fatal exception
[    2.800120] SMP: stopping secondary CPUs

Fixes: 9de71ede81e6 ("f2fs: quota: fix potential deadlock")
Cc: <stable@vger.kernel.org> # v5.15+
Signed-off-by: Juhyung Park <qkrwngud825@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 547ab5a7e8203..8256c7f1abb1f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2701,7 +2701,7 @@ int f2fs_quota_sync(struct super_block *sb, int type)
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
 	struct quota_info *dqopt = sb_dqopt(sb);
 	int cnt;
-	int ret;
+	int ret = 0;
 
 	/*
 	 * Now when everything is written we can discard the pagecache so
@@ -2712,8 +2712,8 @@ int f2fs_quota_sync(struct super_block *sb, int type)
 		if (type != -1 && cnt != type)
 			continue;
 
-		if (!sb_has_quota_active(sb, type))
-			return 0;
+		if (!sb_has_quota_active(sb, cnt))
+			continue;
 
 		inode_lock(dqopt->files[cnt]);
 
-- 
GitLab


From 67933e2f73b87d89aa54faee3d7ff7bb236ab740 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Fri, 25 Feb 2022 23:35:30 +0000
Subject: [PATCH 4137/4878] ANDROID: fuse-bpf: Update attributes on file write

Bug: 221093504
Test: atest android.hardware.cts.CameraTest#testJpegExif
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: Ideb4f4d95e60594aed9000df4c21bacfaeac3a55
---
 fs/fuse/backing.c     | 4 ++++
 fs/fuse/fuse_i.h      | 1 +
 fs/fuse/passthrough.c | 2 +-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index f7629c0f096c0..c1e57a06c469b 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -797,6 +797,10 @@ int fuse_file_write_iter_backing(struct fuse_args *fa,
 	/* TODO This just plain ignores any change to fuse_write_in */
 	fwo->size = vfs_iter_write(ff->backing_file, from, &iocb->ki_pos, 0);
 
+	/* Must reflect change in size of backing file to upper file */
+	if (fwo->size > 0)
+		fuse_copyattr(file, ff->backing_file);
+
 	if (fwo->size < 0)
 		return fwo->size;
 	return 0;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 50784f39cba84..675db33e9c0c2 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1299,6 +1299,7 @@ bool fuse_dax_check_alignment(struct fuse_conn *fc, unsigned int map_alignment);
 void fuse_dax_cancel_work(struct fuse_conn *fc);
 
 /* passthrough.c */
+void fuse_copyattr(struct file *dst_file, struct file *src_file);
 int fuse_passthrough_open(struct fuse_dev *fud, u32 lower_fd);
 int fuse_passthrough_setup(struct fuse_conn *fc, struct fuse_file *ff,
 			   struct fuse_open_out *openarg);
diff --git a/fs/fuse/passthrough.c b/fs/fuse/passthrough.c
index 83125de0bfdc6..6031e72f3b5af 100644
--- a/fs/fuse/passthrough.c
+++ b/fs/fuse/passthrough.c
@@ -34,7 +34,7 @@ static void fuse_file_accessed(struct file *dst_file, struct file *src_file)
 	touch_atime(&dst_file->f_path);
 }
 
-static void fuse_copyattr(struct file *dst_file, struct file *src_file)
+void fuse_copyattr(struct file *dst_file, struct file *src_file)
 {
 	struct inode *dst = file_inode(dst_file);
 	struct inode *src = file_inode(src_file);
-- 
GitLab


From 8ac834f5ea1a1298d95015b69caeb4a5e1ffb2c3 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Thu, 24 Feb 2022 01:01:37 -0500
Subject: [PATCH 4138/4878] FROMGIT: mm: count time in drain_all_pages during
 direct reclaim as memory pressure

When page allocation in direct reclaim path fails, the system will make
one attempt to shrink per-cpu page lists and free pages from high alloc
reserves.  Draining per-cpu pages into buddy allocator can be a very slow
operation because it's done using workqueues and the task in direct
reclaim waits for all of them to finish before proceeding.  Currently this
time is not accounted as psi memory stall.

While testing mobile devices under extreme memory pressure, when
allocations are failing during direct reclaim, we notices that psi events
which would be expected in such conditions were not triggered.  After
profiling these cases it was determined that the reason for missing psi
events was that a big chunk of time spent in direct reclaim is not
accounted as memory stall, therefore psi would not reach the levels at
which an event is generated.  Further investigation revealed that the bulk
of that unaccounted time was spent inside drain_all_pages call.

A typical captured case when drain_all_pages path gets activated:

__alloc_pages_slowpath  took 44.644.613ns
    __perform_reclaim   took    751.668ns (1.7%)
    drain_all_pages     took 43.887.167ns (98.3%)

PSI in this case records the time spent in __perform_reclaim but ignores
drain_all_pages, IOW it misses 98.3% of the time spent in
__alloc_pages_slowpath.

Annotate __alloc_pages_direct_reclaim in its entirety so that delays from
handling page allocation failure in the direct reclaim path are accounted
as memory stall.

Link: https://lkml.kernel.org/r/20220223194812.1299646-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: Tim Murray <timmurray@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
(cherry picked from commit d4f448732857375eb3dc422225a61e64f8257cb1
https://github.com/hnaz/linux-mm.git master)

Bug: 205182133
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ia3a4138f8d5e8ce612bd5c371cfcc0f21e1ebc42
---
 mm/page_alloc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8fa9361450741..629d1dcdd9e08 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4522,13 +4522,12 @@ __perform_reclaim(gfp_t gfp_mask, unsigned int order,
 					const struct alloc_context *ac)
 {
 	unsigned int noreclaim_flag;
-	unsigned long pflags, progress;
+	unsigned long progress;
 
 	cond_resched();
 
 	/* We now go into synchronous reclaim */
 	cpuset_memory_pressure_bump();
-	psi_memstall_enter(&pflags);
 	fs_reclaim_acquire(gfp_mask);
 	noreclaim_flag = memalloc_noreclaim_save();
 
@@ -4537,7 +4536,6 @@ __perform_reclaim(gfp_t gfp_mask, unsigned int order,
 
 	memalloc_noreclaim_restore(noreclaim_flag);
 	fs_reclaim_release(gfp_mask);
-	psi_memstall_leave(&pflags);
 
 	cond_resched();
 
@@ -4551,11 +4549,13 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
 		unsigned long *did_some_progress)
 {
 	struct page *page = NULL;
+	unsigned long pflags;
 	bool drained = false;
 
+	psi_memstall_enter(&pflags);
 	*did_some_progress = __perform_reclaim(gfp_mask, order, ac);
 	if (unlikely(!(*did_some_progress)))
-		return NULL;
+		goto out;
 
 retry:
 	page = get_page_from_freelist(gfp_mask, order, alloc_flags, ac);
@@ -4571,6 +4571,8 @@ retry:
 		drained = true;
 		goto retry;
 	}
+out:
+	psi_memstall_leave(&pflags);
 
 	return page;
 }
-- 
GitLab


From 255b30f804ac6b0383bc7ca2ec1db4028233acc9 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Tue, 1 Mar 2022 10:22:55 +0000
Subject: [PATCH 4139/4878] ANDROID: KVM: arm64: Ignore length of 0 in
 kvm_flush_dcache_to_poc()

kvm_flush_dcache_to_poc() converts its (start,len) parameters into
(start,end) parameters for dcache_clean_inval_poc(). This mostly works
out except for the case when 'len == 0', where dcache_clean_inval_poc()
will still issue cache maintenance for the cache line containing 'start'.
If 'start' is not mapped, then this can generate an unexpected fault.

Don't call into dcache_clean_inval_poc() from kvm_flush_dcache_to_poc()
if the supplied length is 0.

Reported-by: John Stultz <john.stultz@linaro.org>
Bug: 196204410
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Idae2b22289398e941938821d1d3b3a5a1da3fd8f
---
 arch/arm64/include/asm/kvm_mmu.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 0c2589513be38..7a8dc3f343ec8 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -182,8 +182,13 @@ static inline void *__kvm_vector_slot2addr(void *base,
 
 struct kvm;
 
-#define kvm_flush_dcache_to_poc(a,l)	\
-	dcache_clean_inval_poc((unsigned long)(a), (unsigned long)(a)+(l))
+#define kvm_flush_dcache_to_poc(a, l)	do {			\
+	unsigned long __a = (unsigned long)(a);			\
+	unsigned long __l = (unsigned long)(l);			\
+								\
+	if (__l)						\
+		dcache_clean_inval_poc(__a, __a + __l);		\
+} while (0)
 
 static inline bool vcpu_has_cache_enabled(struct kvm_vcpu *vcpu)
 {
-- 
GitLab


From 30d7caeb15df2f2c90b69803dae26f20f9078f50 Mon Sep 17 00:00:00 2001
From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Mon, 24 May 2021 16:40:20 +0100
Subject: [PATCH 4140/4878] UPSTREAM: virtio-blk: limit seg_max to a safe value

The struct virtio_blk_config seg_max value is read from the device and
incremented by 2 to account for the request header and status byte
descriptors added by the driver.

In preparation for supporting untrusted virtio-blk devices, protect
against integer overflow and limit the value to a safe maximum.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Link: https://lore.kernel.org/r/20210524154020.98195-1-stefanha@redhat.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 63947b3434f475418b9677a393d025c0962c2cf8)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: Ia239cc17c912f05ed2bad08c5ae8a9b1326d3ae6
---
 drivers/block/virtio_blk.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 018fb172a0987..2670306a297d0 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -21,6 +21,9 @@
 #define VQ_NAME_LEN 16
 #define MAX_DISCARD_SEGMENTS 256u
 
+/* The maximum number of sg elements that fit into a virtqueue */
+#define VIRTIO_BLK_MAX_SG_ELEMS 32768
+
 static int major;
 static DEFINE_IDA(vd_index_ida);
 
@@ -730,7 +733,10 @@ static int virtblk_probe(struct virtio_device *vdev)
 	if (err || !sg_elems)
 		sg_elems = 1;
 
-	/* We need an extra sg elements at head and tail. */
+	/* Prevent integer overflows and honor max vq size */
+	sg_elems = min_t(u32, sg_elems, VIRTIO_BLK_MAX_SG_ELEMS - 2);
+
+	/* We need extra sg elements at head and tail. */
 	sg_elems += 2;
 	vdev->priv = vblk = kmalloc(sizeof(*vblk), GFP_KERNEL);
 	if (!vblk) {
-- 
GitLab


From 68e5cf929909706a606f7887e277504939169514 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:44 +0800
Subject: [PATCH 4141/4878] UPSTREAM: virtio-ring: maintain next in extra state
 for packed virtqueue

This patch moves next from vring_desc_state_packed to
vring_desc_desc_extra_packed. This makes it simpler to let extra state
to be reused by split virtqueue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-2-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit aeef9b4733c5c2356c75ba4f5c99e1a09ff1721d)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I7d1e80813d6405879a668f5c4c8074a542016ecd
---
 drivers/virtio/virtio_ring.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 3cc2a4ee7152c..eb332acd52239 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -74,7 +74,6 @@ struct vring_desc_state_packed {
 	void *data;			/* Data for callback. */
 	struct vring_packed_desc *indir_desc; /* Indirect descriptor, if any. */
 	u16 num;			/* Descriptor list length. */
-	u16 next;			/* The next desc state in a list. */
 	u16 last;			/* The last desc state in a list. */
 };
 
@@ -82,6 +81,7 @@ struct vring_desc_extra_packed {
 	dma_addr_t addr;		/* Buffer DMA addr. */
 	u32 len;			/* Buffer length. */
 	u16 flags;			/* Descriptor flags. */
+	u16 next;			/* The next desc state in a list. */
 };
 
 struct vring_virtqueue {
@@ -1063,7 +1063,7 @@ static int virtqueue_add_indirect_packed(struct vring_virtqueue *vq,
 				1 << VRING_PACKED_DESC_F_USED;
 	}
 	vq->packed.next_avail_idx = n;
-	vq->free_head = vq->packed.desc_state[id].next;
+	vq->free_head = vq->packed.desc_extra[id].next;
 
 	/* Store token and indirect buffer state. */
 	vq->packed.desc_state[id].num = 1;
@@ -1179,7 +1179,7 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq,
 					le16_to_cpu(flags);
 			}
 			prev = curr;
-			curr = vq->packed.desc_state[curr].next;
+			curr = vq->packed.desc_extra[curr].next;
 
 			if ((unlikely(++i >= vq->packed.vring.num))) {
 				i = 0;
@@ -1300,7 +1300,7 @@ static void detach_buf_packed(struct vring_virtqueue *vq,
 	/* Clear data ptr. */
 	state->data = NULL;
 
-	vq->packed.desc_state[state->last].next = vq->free_head;
+	vq->packed.desc_extra[state->last].next = vq->free_head;
 	vq->free_head = id;
 	vq->vq.num_free += state->num;
 
@@ -1309,7 +1309,7 @@ static void detach_buf_packed(struct vring_virtqueue *vq,
 		for (i = 0; i < state->num; i++) {
 			vring_unmap_state_packed(vq,
 				&vq->packed.desc_extra[curr]);
-			curr = vq->packed.desc_state[curr].next;
+			curr = vq->packed.desc_extra[curr].next;
 		}
 	}
 
@@ -1659,8 +1659,6 @@ static struct virtqueue *vring_create_virtqueue_packed(
 
 	/* Put everything in free lists. */
 	vq->free_head = 0;
-	for (i = 0; i < num-1; i++)
-		vq->packed.desc_state[i].next = i + 1;
 
 	vq->packed.desc_extra = kmalloc_array(num,
 			sizeof(struct vring_desc_extra_packed),
@@ -1671,6 +1669,9 @@ static struct virtqueue *vring_create_virtqueue_packed(
 	memset(vq->packed.desc_extra, 0,
 		num * sizeof(struct vring_desc_extra_packed));
 
+	for (i = 0; i < num - 1; i++)
+		vq->packed.desc_extra[i].next = i + 1;
+
 	/* No callback?  Tell other side not to bother us. */
 	if (!callback) {
 		vq->packed.event_flags_shadow = VRING_PACKED_EVENT_FLAG_DISABLE;
-- 
GitLab


From 81c7f82c156ac3011254160632ffe255cea737f8 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:45 +0800
Subject: [PATCH 4142/4878] UPSTREAM: virtio_ring: rename
 vring_desc_extra_packed

Rename vring_desc_extra_packed to vring_desc_extra since the structure
are pretty generic which could be reused by split virtqueue as well.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-3-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 1f28750f2e113132791161563c6e7b99eaa4c46b)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: If126893771edc6d7ef08544a60759542b2a58540
---
 drivers/virtio/virtio_ring.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index eb332acd52239..23f686b08f5af 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -77,7 +77,7 @@ struct vring_desc_state_packed {
 	u16 last;			/* The last desc state in a list. */
 };
 
-struct vring_desc_extra_packed {
+struct vring_desc_extra {
 	dma_addr_t addr;		/* Buffer DMA addr. */
 	u32 len;			/* Buffer length. */
 	u16 flags;			/* Descriptor flags. */
@@ -166,7 +166,7 @@ struct vring_virtqueue {
 
 			/* Per-descriptor state. */
 			struct vring_desc_state_packed *desc_state;
-			struct vring_desc_extra_packed *desc_extra;
+			struct vring_desc_extra *desc_extra;
 
 			/* DMA address and size information */
 			dma_addr_t ring_dma_addr;
@@ -912,7 +912,7 @@ static struct virtqueue *vring_create_virtqueue_split(
  */
 
 static void vring_unmap_state_packed(const struct vring_virtqueue *vq,
-				     struct vring_desc_extra_packed *state)
+				     struct vring_desc_extra *state)
 {
 	u16 flags;
 
@@ -1661,13 +1661,13 @@ static struct virtqueue *vring_create_virtqueue_packed(
 	vq->free_head = 0;
 
 	vq->packed.desc_extra = kmalloc_array(num,
-			sizeof(struct vring_desc_extra_packed),
+			sizeof(struct vring_desc_extra),
 			GFP_KERNEL);
 	if (!vq->packed.desc_extra)
 		goto err_desc_extra;
 
 	memset(vq->packed.desc_extra, 0,
-		num * sizeof(struct vring_desc_extra_packed));
+		num * sizeof(struct vring_desc_extra));
 
 	for (i = 0; i < num - 1; i++)
 		vq->packed.desc_extra[i].next = i + 1;
-- 
GitLab


From 8edc83db115f17a82719c4c823407a75cf3f38a5 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:46 +0800
Subject: [PATCH 4143/4878] UPSTREAM: virtio-ring: factor out desc_extra
 allocation

A helper is introduced for the logic of allocating the descriptor
extra data. This will be reused by split virtqueue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-4-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 5a22242160201b819be2fe67e15cc9338f3ee582)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I5235ea3b8f2d981d6c80611cf1af200646bc7a19
---
 drivers/virtio/virtio_ring.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 23f686b08f5af..4934ee58e0bc5 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1560,6 +1560,25 @@ static void *virtqueue_detach_unused_buf_packed(struct virtqueue *_vq)
 	return NULL;
 }
 
+static struct vring_desc_extra *vring_alloc_desc_extra(struct vring_virtqueue *vq,
+						       unsigned int num)
+{
+	struct vring_desc_extra *desc_extra;
+	unsigned int i;
+
+	desc_extra = kmalloc_array(num, sizeof(struct vring_desc_extra),
+				   GFP_KERNEL);
+	if (!desc_extra)
+		return NULL;
+
+	memset(desc_extra, 0, num * sizeof(struct vring_desc_extra));
+
+	for (i = 0; i < num - 1; i++)
+		desc_extra[i].next = i + 1;
+
+	return desc_extra;
+}
+
 static struct virtqueue *vring_create_virtqueue_packed(
 	unsigned int index,
 	unsigned int num,
@@ -1577,7 +1596,6 @@ static struct virtqueue *vring_create_virtqueue_packed(
 	struct vring_packed_desc_event *driver, *device;
 	dma_addr_t ring_dma_addr, driver_event_dma_addr, device_event_dma_addr;
 	size_t ring_size_in_bytes, event_size_in_bytes;
-	unsigned int i;
 
 	ring_size_in_bytes = num * sizeof(struct vring_packed_desc);
 
@@ -1660,18 +1678,10 @@ static struct virtqueue *vring_create_virtqueue_packed(
 	/* Put everything in free lists. */
 	vq->free_head = 0;
 
-	vq->packed.desc_extra = kmalloc_array(num,
-			sizeof(struct vring_desc_extra),
-			GFP_KERNEL);
+	vq->packed.desc_extra = vring_alloc_desc_extra(vq, num);
 	if (!vq->packed.desc_extra)
 		goto err_desc_extra;
 
-	memset(vq->packed.desc_extra, 0,
-		num * sizeof(struct vring_desc_extra));
-
-	for (i = 0; i < num - 1; i++)
-		vq->packed.desc_extra[i].next = i + 1;
-
 	/* No callback?  Tell other side not to bother us. */
 	if (!callback) {
 		vq->packed.event_flags_shadow = VRING_PACKED_EVENT_FLAG_DISABLE;
-- 
GitLab


From 63651aa98a6f2155daceaa35f659ec6e5b1590b1 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:47 +0800
Subject: [PATCH 4144/4878] UPSTREAM: virtio_ring: secure handling of mapping
 errors

We should not depend on the DMA address, length and flag of descriptor
table since they could be wrote with arbitrary value by the device. So
this patch switches to use the stored one in desc_extra.

Note that the indirect descriptors are fine since they are read-only
streaming mappings.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-5-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 44593865b7c5f55bf587f297c72d682c671eea2b)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I55bd78a1c023ef23af553b384ba548ee2797c3cd
---
 drivers/virtio/virtio_ring.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 4934ee58e0bc5..d1cccb14ec39f 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1223,13 +1223,16 @@ static inline int virtqueue_add_packed(struct virtqueue *_vq,
 unmap_release:
 	err_idx = i;
 	i = head;
+	curr = vq->free_head;
 
 	vq->packed.avail_used_flags = avail_used_flags;
 
 	for (n = 0; n < total_sg; n++) {
 		if (i == err_idx)
 			break;
-		vring_unmap_desc_packed(vq, &desc[i]);
+		vring_unmap_state_packed(vq,
+					 &vq->packed.desc_extra[curr]);
+		curr = vq->packed.desc_extra[curr].next;
 		i++;
 		if (i >= vq->packed.vring.num)
 			i = 0;
-- 
GitLab


From 72c6d17f9e15b5c0c81ed12f6221c0a70c9b165d Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:48 +0800
Subject: [PATCH 4145/4878] UPSTREAM: virtio_ring: introduce
 virtqueue_desc_add_split()

This patch introduces a helper for storing descriptor in the
descriptor table for split virtqueue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-6-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit fe4c3862df630ec711133e686e023b4467da2ec1)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: Ia78d97080d1b4e443a91804106fef12d0037f266
---
 drivers/virtio/virtio_ring.c | 39 ++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 15 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index d1cccb14ec39f..79bb05b7fda61 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -412,6 +412,20 @@ static struct vring_desc *alloc_indirect_split(struct virtqueue *_vq,
 	return desc;
 }
 
+static inline unsigned int virtqueue_add_desc_split(struct virtqueue *vq,
+						    struct vring_desc *desc,
+						    unsigned int i,
+						    dma_addr_t addr,
+						    unsigned int len,
+						    u16 flags)
+{
+	desc[i].flags = cpu_to_virtio16(vq->vdev, flags);
+	desc[i].addr = cpu_to_virtio64(vq->vdev, addr);
+	desc[i].len = cpu_to_virtio32(vq->vdev, len);
+
+	return virtio16_to_cpu(vq->vdev, desc[i].next);
+}
+
 static inline int virtqueue_add_split(struct virtqueue *_vq,
 				      struct scatterlist *sgs[],
 				      unsigned int total_sg,
@@ -484,11 +498,9 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 			if (vring_mapping_error(vq, addr))
 				goto unmap_release;
 
-			desc[i].flags = cpu_to_virtio16(_vq->vdev, VRING_DESC_F_NEXT);
-			desc[i].addr = cpu_to_virtio64(_vq->vdev, addr);
-			desc[i].len = cpu_to_virtio32(_vq->vdev, sg->length);
 			prev = i;
-			i = virtio16_to_cpu(_vq->vdev, desc[i].next);
+			i = virtqueue_add_desc_split(_vq, desc, i, addr, sg->length,
+						     VRING_DESC_F_NEXT);
 		}
 	}
 	for (; n < (out_sgs + in_sgs); n++) {
@@ -497,11 +509,11 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 			if (vring_mapping_error(vq, addr))
 				goto unmap_release;
 
-			desc[i].flags = cpu_to_virtio16(_vq->vdev, VRING_DESC_F_NEXT | VRING_DESC_F_WRITE);
-			desc[i].addr = cpu_to_virtio64(_vq->vdev, addr);
-			desc[i].len = cpu_to_virtio32(_vq->vdev, sg->length);
 			prev = i;
-			i = virtio16_to_cpu(_vq->vdev, desc[i].next);
+			i = virtqueue_add_desc_split(_vq, desc, i, addr,
+						     sg->length,
+						     VRING_DESC_F_NEXT |
+						     VRING_DESC_F_WRITE);
 		}
 	}
 	/* Last one doesn't continue. */
@@ -515,13 +527,10 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 		if (vring_mapping_error(vq, addr))
 			goto unmap_release;
 
-		vq->split.vring.desc[head].flags = cpu_to_virtio16(_vq->vdev,
-				VRING_DESC_F_INDIRECT);
-		vq->split.vring.desc[head].addr = cpu_to_virtio64(_vq->vdev,
-				addr);
-
-		vq->split.vring.desc[head].len = cpu_to_virtio32(_vq->vdev,
-				total_sg * sizeof(struct vring_desc));
+		virtqueue_add_desc_split(_vq, vq->split.vring.desc,
+					 head, addr,
+					 total_sg * sizeof(struct vring_desc),
+			                 VRING_DESC_F_INDIRECT);
 	}
 
 	/* We're using some buffers from the free list. */
-- 
GitLab


From 0e51c04805cdcf35c80c03b11ef54f8cad830b16 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:49 +0800
Subject: [PATCH 4146/4878] UPSTREAM: virtio: use err label in
 __vring_new_virtqueue()

Using error label for unwind in __vring_new_virtqueue. This is useful
for future refacotring.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-7-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 5bc72234f7c65830e60806dbb73ae76bacd8a061)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: Ia6b38a3c604f41f3d650c5c29f7c7f4dac204020
---
 drivers/virtio/virtio_ring.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 79bb05b7fda61..06e516c6a0206 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -2149,10 +2149,8 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index,
 
 	vq->split.desc_state = kmalloc_array(vring.num,
 			sizeof(struct vring_desc_state_split), GFP_KERNEL);
-	if (!vq->split.desc_state) {
-		kfree(vq);
-		return NULL;
-	}
+	if (!vq->split.desc_state)
+		goto err_state;
 
 	/* Put everything in free lists. */
 	vq->free_head = 0;
@@ -2165,6 +2163,10 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index,
 	list_add_tail(&vq->vq.list, &vdev->vqs);
 	spin_unlock(&vdev->vqs_list_lock);
 	return &vq->vq;
+
+err_state:
+	kfree(vq);
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(__vring_new_virtqueue);
 
-- 
GitLab


From 4eba9e68db4251218b8ccc68eea72551973a1c44 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 4 Jun 2021 13:53:50 +0800
Subject: [PATCH 4147/4878] UPSTREAM: virtio-ring: store DMA metadata in
 desc_extra for split virtqueue

For split virtqueue, we used to depend on the address, length and
flags stored in the descriptor ring for DMA unmapping. This is unsafe
for the case since the device can manipulate the behavior of virtio
driver, IOMMU drivers and swiotlb.

For safety, maintain the DMA address, DMA length, descriptor flags and
next filed of the non indirect descriptors in vring_desc_state_extra
when DMA API is used for virtio as we did for packed virtqueue and use
those metadata for performing DMA operations. Indirect descriptors
should be safe since they are using streaming mappings.

With this the descriptor ring is write only form the view of the
driver.

This slight increase the footprint of the drive but it's not noticed
through pktgen (64B) test and netperf test in the case of virtio-net.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20210604055350.58753-8-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 72b5e8958738aaa453db5149e6ca3bcf416023b9)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I91ced278a7130bf03e7f31f01560839452c33c60
---
 drivers/virtio/virtio_ring.c | 112 +++++++++++++++++++++++++++--------
 1 file changed, 87 insertions(+), 25 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 06e516c6a0206..5fdb79818b638 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -130,6 +130,7 @@ struct vring_virtqueue {
 
 			/* Per-descriptor state. */
 			struct vring_desc_state_split *desc_state;
+			struct vring_desc_extra *desc_extra;
 
 			/* DMA address and size information */
 			dma_addr_t queue_dma_addr;
@@ -364,8 +365,8 @@ static int vring_mapping_error(const struct vring_virtqueue *vq,
  * Split ring specific functions - *_split().
  */
 
-static void vring_unmap_one_split(const struct vring_virtqueue *vq,
-				  struct vring_desc *desc)
+static void vring_unmap_one_split_indirect(const struct vring_virtqueue *vq,
+					   struct vring_desc *desc)
 {
 	u16 flags;
 
@@ -389,6 +390,35 @@ static void vring_unmap_one_split(const struct vring_virtqueue *vq,
 	}
 }
 
+static unsigned int vring_unmap_one_split(const struct vring_virtqueue *vq,
+					  unsigned int i)
+{
+	struct vring_desc_extra *extra = vq->split.desc_extra;
+	u16 flags;
+
+	if (!vq->use_dma_api)
+		goto out;
+
+	flags = extra[i].flags;
+
+	if (flags & VRING_DESC_F_INDIRECT) {
+		dma_unmap_single(vring_dma_dev(vq),
+				 extra[i].addr,
+				 extra[i].len,
+				 (flags & VRING_DESC_F_WRITE) ?
+				 DMA_FROM_DEVICE : DMA_TO_DEVICE);
+	} else {
+		dma_unmap_page(vring_dma_dev(vq),
+			       extra[i].addr,
+			       extra[i].len,
+			       (flags & VRING_DESC_F_WRITE) ?
+			       DMA_FROM_DEVICE : DMA_TO_DEVICE);
+	}
+
+out:
+	return extra[i].next;
+}
+
 static struct vring_desc *alloc_indirect_split(struct virtqueue *_vq,
 					       unsigned int total_sg,
 					       gfp_t gfp)
@@ -417,13 +447,28 @@ static inline unsigned int virtqueue_add_desc_split(struct virtqueue *vq,
 						    unsigned int i,
 						    dma_addr_t addr,
 						    unsigned int len,
-						    u16 flags)
+						    u16 flags,
+						    bool indirect)
 {
+	struct vring_virtqueue *vring = to_vvq(vq);
+	struct vring_desc_extra *extra = vring->split.desc_extra;
+	u16 next;
+
 	desc[i].flags = cpu_to_virtio16(vq->vdev, flags);
 	desc[i].addr = cpu_to_virtio64(vq->vdev, addr);
 	desc[i].len = cpu_to_virtio32(vq->vdev, len);
 
-	return virtio16_to_cpu(vq->vdev, desc[i].next);
+	if (!indirect) {
+		next = extra[i].next;
+		desc[i].next = cpu_to_virtio16(vq->vdev, next);
+
+		extra[i].addr = addr;
+		extra[i].len = len;
+		extra[i].flags = flags;
+	} else
+		next = virtio16_to_cpu(vq->vdev, desc[i].next);
+
+	return next;
 }
 
 static inline int virtqueue_add_split(struct virtqueue *_vq,
@@ -499,8 +544,12 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 				goto unmap_release;
 
 			prev = i;
+			/* Note that we trust indirect descriptor
+			 * table since it use stream DMA mapping.
+			 */
 			i = virtqueue_add_desc_split(_vq, desc, i, addr, sg->length,
-						     VRING_DESC_F_NEXT);
+						     VRING_DESC_F_NEXT,
+						     indirect);
 		}
 	}
 	for (; n < (out_sgs + in_sgs); n++) {
@@ -510,14 +559,21 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 				goto unmap_release;
 
 			prev = i;
+			/* Note that we trust indirect descriptor
+			 * table since it use stream DMA mapping.
+			 */
 			i = virtqueue_add_desc_split(_vq, desc, i, addr,
 						     sg->length,
 						     VRING_DESC_F_NEXT |
-						     VRING_DESC_F_WRITE);
+						     VRING_DESC_F_WRITE,
+						     indirect);
 		}
 	}
 	/* Last one doesn't continue. */
 	desc[prev].flags &= cpu_to_virtio16(_vq->vdev, ~VRING_DESC_F_NEXT);
+	if (!indirect && vq->use_dma_api)
+		vq->split.desc_extra[prev & (vq->split.vring.num - 1)].flags =
+			~VRING_DESC_F_NEXT;
 
 	if (indirect) {
 		/* Now that the indirect table is filled in, map it. */
@@ -530,7 +586,8 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 		virtqueue_add_desc_split(_vq, vq->split.vring.desc,
 					 head, addr,
 					 total_sg * sizeof(struct vring_desc),
-			                 VRING_DESC_F_INDIRECT);
+					 VRING_DESC_F_INDIRECT,
+					 false);
 	}
 
 	/* We're using some buffers from the free list. */
@@ -538,8 +595,7 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 
 	/* Update free pointer */
 	if (indirect)
-		vq->free_head = virtio16_to_cpu(_vq->vdev,
-					vq->split.vring.desc[head].next);
+		vq->free_head = vq->split.desc_extra[head].next;
 	else
 		vq->free_head = i;
 
@@ -584,8 +640,11 @@ unmap_release:
 	for (n = 0; n < total_sg; n++) {
 		if (i == err_idx)
 			break;
-		vring_unmap_one_split(vq, &desc[i]);
-		i = virtio16_to_cpu(_vq->vdev, desc[i].next);
+		if (indirect) {
+			vring_unmap_one_split_indirect(vq, &desc[i]);
+			i = virtio16_to_cpu(_vq->vdev, desc[i].next);
+		} else
+			i = vring_unmap_one_split(vq, i);
 	}
 
 	if (indirect)
@@ -639,14 +698,13 @@ static void detach_buf_split(struct vring_virtqueue *vq, unsigned int head,
 	i = head;
 
 	while (vq->split.vring.desc[i].flags & nextflag) {
-		vring_unmap_one_split(vq, &vq->split.vring.desc[i]);
-		i = virtio16_to_cpu(vq->vq.vdev, vq->split.vring.desc[i].next);
+		vring_unmap_one_split(vq, i);
+		i = vq->split.desc_extra[i].next;
 		vq->vq.num_free++;
 	}
 
-	vring_unmap_one_split(vq, &vq->split.vring.desc[i]);
-	vq->split.vring.desc[i].next = cpu_to_virtio16(vq->vq.vdev,
-						vq->free_head);
+	vring_unmap_one_split(vq, i);
+	vq->split.desc_extra[i].next = vq->free_head;
 	vq->free_head = head;
 
 	/* Plus final descriptor */
@@ -661,15 +719,14 @@ static void detach_buf_split(struct vring_virtqueue *vq, unsigned int head,
 		if (!indir_desc)
 			return;
 
-		len = virtio32_to_cpu(vq->vq.vdev,
-				vq->split.vring.desc[head].len);
+		len = vq->split.desc_extra[head].len;
 
-		BUG_ON(!(vq->split.vring.desc[head].flags &
-			 cpu_to_virtio16(vq->vq.vdev, VRING_DESC_F_INDIRECT)));
+		BUG_ON(!(vq->split.desc_extra[head].flags &
+				VRING_DESC_F_INDIRECT));
 		BUG_ON(len == 0 || len % sizeof(struct vring_desc));
 
 		for (j = 0; j < len / sizeof(struct vring_desc); j++)
-			vring_unmap_one_split(vq, &indir_desc[j]);
+			vring_unmap_one_split_indirect(vq, &indir_desc[j]);
 
 		kfree(indir_desc);
 		vq->split.desc_state[head].indir_desc = NULL;
@@ -2097,7 +2154,6 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index,
 					void (*callback)(struct virtqueue *),
 					const char *name)
 {
-	unsigned int i;
 	struct vring_virtqueue *vq;
 
 	if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED))
@@ -2152,10 +2208,12 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index,
 	if (!vq->split.desc_state)
 		goto err_state;
 
+	vq->split.desc_extra = vring_alloc_desc_extra(vq, vring.num);
+	if (!vq->split.desc_extra)
+		goto err_extra;
+
 	/* Put everything in free lists. */
 	vq->free_head = 0;
-	for (i = 0; i < vring.num-1; i++)
-		vq->split.vring.desc[i].next = cpu_to_virtio16(vdev, i + 1);
 	memset(vq->split.desc_state, 0, vring.num *
 			sizeof(struct vring_desc_state_split));
 
@@ -2164,6 +2222,8 @@ struct virtqueue *__vring_new_virtqueue(unsigned int index,
 	spin_unlock(&vdev->vqs_list_lock);
 	return &vq->vq;
 
+err_extra:
+	kfree(vq->split.desc_state);
 err_state:
 	kfree(vq);
 	return NULL;
@@ -2247,8 +2307,10 @@ void vring_del_virtqueue(struct virtqueue *_vq)
 					 vq->split.queue_dma_addr);
 		}
 	}
-	if (!vq->packed_ring)
+	if (!vq->packed_ring) {
 		kfree(vq->split.desc_state);
+		kfree(vq->split.desc_extra);
+	}
 	spin_lock(&vq->vq.vdev->vqs_list_lock);
 	list_del(&_vq->list);
 	spin_unlock(&vq->vq.vdev->vqs_list_lock);
-- 
GitLab


From bda75743e47df9970fb4389f386e0771370014fe Mon Sep 17 00:00:00 2001
From: Vincent Whitchurch <vincent.whitchurch@axis.com>
Date: Tue, 26 Oct 2021 15:31:00 +0200
Subject: [PATCH 4148/4878] UPSTREAM: virtio-ring: fix DMA metadata flags

The flags are currently overwritten, leading to the wrong direction
being passed to the DMA unmap functions.

Fixes: 72b5e8958738aaa4 ("virtio-ring: store DMA metadata in desc_extra for split virtqueue")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20211026133100.17541-1-vincent.whitchurch@axis.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 890d33561337ffeba0d8ba42517e71288cfee2b6)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I1f7634d67e2a6f5f18a727d0ab381a7ad6beb165
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 5fdb79818b638..3d5c050d0a3a3 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -572,7 +572,7 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
 	/* Last one doesn't continue. */
 	desc[prev].flags &= cpu_to_virtio16(_vq->vdev, ~VRING_DESC_F_NEXT);
 	if (!indirect && vq->use_dma_api)
-		vq->split.desc_extra[prev & (vq->split.vring.num - 1)].flags =
+		vq->split.desc_extra[prev & (vq->split.vring.num - 1)].flags &=
 			~VRING_DESC_F_NEXT;
 
 	if (indirect) {
-- 
GitLab


From fcec42dd28d62247765d40d3ee61c37dcc98ab0b Mon Sep 17 00:00:00 2001
From: Zhang Qiao <zhangqiao22@huawei.com>
Date: Fri, 21 Jan 2022 18:12:10 +0800
Subject: [PATCH 4149/4878] cgroup/cpuset: Fix a race between cpuset_attach()
 and cpu hotplug
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 05c7b7a92cc87ff8d7fde189d0fade250697573c upstream.

As previously discussed(https://lkml.org/lkml/2022/1/20/51),
cpuset_attach() is affected with similar cpu hotplug race,
as follow scenario:

     cpuset_attach()				cpu hotplug
    ---------------------------            ----------------------
    down_write(cpuset_rwsem)
    guarantee_online_cpus() // (load cpus_attach)
					sched_cpu_deactivate
					  set_cpu_active()
					  // will change cpu_active_mask
    set_cpus_allowed_ptr(cpus_attach)
      __set_cpus_allowed_ptr_locked()
       // (if the intersection of cpus_attach and
         cpu_active_mask is empty, will return -EINVAL)
    up_write(cpuset_rwsem)

To avoid races such as described above, protect cpuset_attach() call
with cpu_hotplug_lock.

Fixes: be367d099270 ("cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time")
Cc: stable@vger.kernel.org # v2.6.32+
Reported-by: Zhao Gongyi <zhaogongyi@huawei.com>
Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com>
Acked-by: Waiman Long <longman@redhat.com>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/cgroup/cpuset.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index ef6b3a7f31c17..0aa224c31f10a 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -2212,6 +2212,7 @@ static void cpuset_attach(struct cgroup_taskset *tset)
 	cgroup_taskset_first(tset, &css);
 	cs = css_cs(css);
 
+	cpus_read_lock();
 	percpu_down_write(&cpuset_rwsem);
 
 	/* prepare for attach */
@@ -2267,6 +2268,7 @@ static void cpuset_attach(struct cgroup_taskset *tset)
 		wake_up(&cpuset_attach_wq);
 
 	percpu_up_write(&cpuset_rwsem);
+	cpus_read_unlock();
 }
 
 /* The various types of files and directories in a cpuset file system */
-- 
GitLab


From 5c967dd07311da972a68eb318e9b43bb4b0f0c3a Mon Sep 17 00:00:00 2001
From: Su Yue <l@damenly.su>
Date: Fri, 21 Jan 2022 17:33:34 +0800
Subject: [PATCH 4150/4878] btrfs: tree-checker: check item_size for inode_item

commit 0c982944af27d131d3b74242f3528169f66950ad upstream.

while mounting the crafted image, out-of-bounds access happens:

  [350.429619] UBSAN: array-index-out-of-bounds in fs/btrfs/struct-funcs.c:161:1
  [350.429636] index 1048096 is out of range for type 'page *[16]'
  [350.429650] CPU: 0 PID: 9 Comm: kworker/u8:1 Not tainted 5.16.0-rc4 #1
  [350.429652] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014
  [350.429653] Workqueue: btrfs-endio-meta btrfs_work_helper [btrfs]
  [350.429772] Call Trace:
  [350.429774]  <TASK>
  [350.429776]  dump_stack_lvl+0x47/0x5c
  [350.429780]  ubsan_epilogue+0x5/0x50
  [350.429786]  __ubsan_handle_out_of_bounds+0x66/0x70
  [350.429791]  btrfs_get_16+0xfd/0x120 [btrfs]
  [350.429832]  check_leaf+0x754/0x1a40 [btrfs]
  [350.429874]  ? filemap_read+0x34a/0x390
  [350.429878]  ? load_balance+0x175/0xfc0
  [350.429881]  validate_extent_buffer+0x244/0x310 [btrfs]
  [350.429911]  btrfs_validate_metadata_buffer+0xf8/0x100 [btrfs]
  [350.429935]  end_bio_extent_readpage+0x3af/0x850 [btrfs]
  [350.429969]  ? newidle_balance+0x259/0x480
  [350.429972]  end_workqueue_fn+0x29/0x40 [btrfs]
  [350.429995]  btrfs_work_helper+0x71/0x330 [btrfs]
  [350.430030]  ? __schedule+0x2fb/0xa40
  [350.430033]  process_one_work+0x1f6/0x400
  [350.430035]  ? process_one_work+0x400/0x400
  [350.430036]  worker_thread+0x2d/0x3d0
  [350.430037]  ? process_one_work+0x400/0x400
  [350.430038]  kthread+0x165/0x190
  [350.430041]  ? set_kthread_struct+0x40/0x40
  [350.430043]  ret_from_fork+0x1f/0x30
  [350.430047]  </TASK>
  [350.430077] BTRFS warning (device loop0): bad eb member start: ptr 0xffe20f4e start 20975616 member offset 4293005178 size 2

check_leaf() is checking the leaf:

  corrupt leaf: root=4 block=29396992 slot=1, bad key order, prev (16140901064495857664 1 0) current (1 204 12582912)
  leaf 29396992 items 6 free space 3565 generation 6 owner DEV_TREE
  leaf 29396992 flags 0x1(WRITTEN) backref revision 1
  fs uuid a62e00e8-e94e-4200-8217-12444de93c2e
  chunk uuid cecbd0f7-9ca0-441e-ae9f-f782f9732bd8
	  item 0 key (16140901064495857664 INODE_ITEM 0) itemoff 3955 itemsize 40
		  generation 0 transid 0 size 0 nbytes 17592186044416
		  block group 0 mode 52667 links 33 uid 0 gid 2104132511 rdev 94223634821136
		  sequence 100305 flags 0x2409000(none)
		  atime 0.0 (1970-01-01 08:00:00)
		  ctime 2973280098083405823.4294967295 (-269783007-01-01 21:37:03)
		  mtime 18446744071572723616.4026825121 (1902-04-16 12:40:00)
		  otime 9249929404488876031.4294967295 (622322949-04-16 04:25:58)
	  item 1 key (1 DEV_EXTENT 12582912) itemoff 3907 itemsize 48
		  dev extent chunk_tree 3
		  chunk_objectid 256 chunk_offset 12582912 length 8388608
		  chunk_tree_uuid cecbd0f7-9ca0-441e-ae9f-f782f9732bd8

The corrupted leaf of device tree has an inode item. The leaf passed
checksum and others checks in validate_extent_buffer until check_leaf_item().
Because of the key type BTRFS_INODE_ITEM, check_inode_item() is called even we
are in the device tree. Since the
item offset + sizeof(struct btrfs_inode_item) > eb->len, out-of-bounds access
is triggered.

The item end vs leaf boundary check has been done before
check_leaf_item(), so fix it by checking item size in check_inode_item()
before access of the inode item in extent buffer.

Other check functions except check_dev_item() in check_leaf_item()
have their item size checks.
The commit for check_dev_item() is followed.

No regression observed during running fstests.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215299
CC: stable@vger.kernel.org # 5.10+
CC: Wenqing Liu <wenqingliu0120@gmail.com>
Signed-off-by: Su Yue <l@damenly.su>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-checker.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index d4a3a56726aa8..7f25efda259b6 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -989,6 +989,7 @@ static int check_inode_item(struct extent_buffer *leaf,
 	struct btrfs_inode_item *iitem;
 	u64 super_gen = btrfs_super_generation(fs_info->super_copy);
 	u32 valid_mask = (S_IFMT | S_ISUID | S_ISGID | S_ISVTX | 0777);
+	const u32 item_size = btrfs_item_size_nr(leaf, slot);
 	u32 mode;
 	int ret;
 
@@ -996,6 +997,12 @@ static int check_inode_item(struct extent_buffer *leaf,
 	if (ret < 0)
 		return ret;
 
+	if (unlikely(item_size != sizeof(*iitem))) {
+		generic_err(leaf, slot, "invalid item size: has %u expect %zu",
+			    item_size, sizeof(*iitem));
+		return -EUCLEAN;
+	}
+
 	iitem = btrfs_item_ptr(leaf, slot, struct btrfs_inode_item);
 
 	/* Here we use super block generation + 1 to handle log tree */
-- 
GitLab


From 72a5b01875b279196b30af9cca737318fbf3f634 Mon Sep 17 00:00:00 2001
From: Su Yue <l@damenly.su>
Date: Fri, 21 Jan 2022 17:33:35 +0800
Subject: [PATCH 4151/4878] btrfs: tree-checker: check item_size for dev_item

commit ea1d1ca4025ac6c075709f549f9aa036b5b6597d upstream.

Check item size before accessing the device item to avoid out of bound
access, similar to inode_item check.

Signed-off-by: Su Yue <l@damenly.su>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-checker.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 7f25efda259b6..32f1b15b25dcc 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -947,6 +947,7 @@ static int check_dev_item(struct extent_buffer *leaf,
 			  struct btrfs_key *key, int slot)
 {
 	struct btrfs_dev_item *ditem;
+	const u32 item_size = btrfs_item_size_nr(leaf, slot);
 
 	if (key->objectid != BTRFS_DEV_ITEMS_OBJECTID) {
 		dev_item_err(leaf, slot,
@@ -954,6 +955,13 @@ static int check_dev_item(struct extent_buffer *leaf,
 			     key->objectid, BTRFS_DEV_ITEMS_OBJECTID);
 		return -EUCLEAN;
 	}
+
+	if (unlikely(item_size != sizeof(*ditem))) {
+		dev_item_err(leaf, slot, "invalid item size: has %u expect %zu",
+			     item_size, sizeof(*ditem));
+		return -EUCLEAN;
+	}
+
 	ditem = btrfs_item_ptr(leaf, slot, struct btrfs_dev_item);
 	if (btrfs_device_id(leaf, ditem) != key->offset) {
 		dev_item_err(leaf, slot,
-- 
GitLab


From 84e303b4d53fb348cb9179d35ddac3c71d7cfbf5 Mon Sep 17 00:00:00 2001
From: Siarhei Volkau <lis8215@gmail.com>
Date: Sat, 5 Feb 2022 20:18:49 +0300
Subject: [PATCH 4152/4878] clk: jz4725b: fix mmc0 clock gating

commit 2f0754f27a230fee6e6d753f07585cee03bedfe3 upstream.

The mmc0 clock gate bit was mistakenly assigned to "i2s" clock.
You can find that the same bit is assigned to "mmc0" too.
It leads to mmc0 hang for a long time after any sound activity
also it  prevented PM_SLEEP to work properly.
I guess it was introduced by copy-paste from jz4740 driver
where it is really controls I2S clock gate.

Fixes: 226dfa4726eb ("clk: Add Ingenic jz4725b CGU driver")
Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Tested-by: Siarhei Volkau <lis8215@gmail.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220205171849.687805-2-lis8215@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/clk/ingenic/jz4725b-cgu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/clk/ingenic/jz4725b-cgu.c b/drivers/clk/ingenic/jz4725b-cgu.c
index 8c38e72d14a79..786e361a4a6a4 100644
--- a/drivers/clk/ingenic/jz4725b-cgu.c
+++ b/drivers/clk/ingenic/jz4725b-cgu.c
@@ -139,11 +139,10 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = {
 	},
 
 	[JZ4725B_CLK_I2S] = {
-		"i2s", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
+		"i2s", CGU_CLK_MUX | CGU_CLK_DIV,
 		.parents = { JZ4725B_CLK_EXT, JZ4725B_CLK_PLL_HALF, -1, -1 },
 		.mux = { CGU_REG_CPCCR, 31, 1 },
 		.div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1 },
-		.gate = { CGU_REG_CLKGR, 6 },
 	},
 
 	[JZ4725B_CLK_SPI] = {
-- 
GitLab


From 698dc7d13c4e972214458996455447651a657264 Mon Sep 17 00:00:00 2001
From: Stefano Garzarella <sgarzare@redhat.com>
Date: Tue, 22 Feb 2022 10:47:42 +0100
Subject: [PATCH 4153/4878] vhost/vsock: don't check owner in
 vhost_vsock_stop() while releasing

commit a58da53ffd70294ebea8ecd0eb45fd0d74add9f9 upstream.

vhost_vsock_stop() calls vhost_dev_check_owner() to check the device
ownership. It expects current->mm to be valid.

vhost_vsock_stop() is also called by vhost_vsock_dev_release() when
the user has not done close(), so when we are in do_exit(). In this
case current->mm is invalid and we're releasing the device, so we
should clean it anyway.

Let's check the owner only when vhost_vsock_stop() is called
by an ioctl.

When invoked from release we can not fail so we don't check return
code of vhost_vsock_stop(). We need to stop vsock even if it's not
the owner.

Fixes: 433fc58e6bf2 ("VSOCK: Introduce vhost_vsock.ko")
Cc: stable@vger.kernel.org
Reported-by: syzbot+1e3ea63db39f2b4440e0@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+3140b17cb44a7b174008@syzkaller.appspotmail.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/vhost/vsock.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 5cd1ee66d2326..c282fc0d04bd1 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -573,16 +573,18 @@ err:
 	return ret;
 }
 
-static int vhost_vsock_stop(struct vhost_vsock *vsock)
+static int vhost_vsock_stop(struct vhost_vsock *vsock, bool check_owner)
 {
 	size_t i;
-	int ret;
+	int ret = 0;
 
 	mutex_lock(&vsock->dev.mutex);
 
-	ret = vhost_dev_check_owner(&vsock->dev);
-	if (ret)
-		goto err;
+	if (check_owner) {
+		ret = vhost_dev_check_owner(&vsock->dev);
+		if (ret)
+			goto err;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) {
 		struct vhost_virtqueue *vq = &vsock->vqs[i];
@@ -697,7 +699,12 @@ static int vhost_vsock_dev_release(struct inode *inode, struct file *file)
 	 * inefficient.  Room for improvement here. */
 	vsock_for_each_connected_socket(vhost_vsock_reset_orphans);
 
-	vhost_vsock_stop(vsock);
+	/* Don't check the owner, because we are in the release path, so we
+	 * need to stop the vsock device in any case.
+	 * vhost_vsock_stop() can not fail in this case, so we don't need to
+	 * check the return code.
+	 */
+	vhost_vsock_stop(vsock, false);
 	vhost_vsock_flush(vsock);
 	vhost_dev_stop(&vsock->dev);
 
@@ -801,7 +808,7 @@ static long vhost_vsock_dev_ioctl(struct file *f, unsigned int ioctl,
 		if (start)
 			return vhost_vsock_start(vsock);
 		else
-			return vhost_vsock_stop(vsock);
+			return vhost_vsock_stop(vsock, true);
 	case VHOST_GET_FEATURES:
 		features = VHOST_VSOCK_FEATURES;
 		if (copy_to_user(argp, &features, sizeof(features)))
-- 
GitLab


From 397b5433f7420376149220780e0fdd57bff8cc39 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Fri, 18 Feb 2022 09:25:20 +0100
Subject: [PATCH 4154/4878] parisc/unaligned: Fix fldd and fstd unaligned
 handlers on 32-bit kernel

commit dd2288f4a020d693360e3e8d72f8b9d9c25f5ef6 upstream.

Usually the kernel provides fixup routines to emulate the fldd and fstd
floating-point instructions if they load or store 8-byte from/to a not
natuarally aligned memory location.

On a 32-bit kernel I noticed that those unaligned handlers didn't worked and
instead the application got a SEGV.
While checking the code I found two problems:

First, the OPCODE_FLDD_L and OPCODE_FSTD_L cases were ifdef'ed out by the
CONFIG_PA20 option, and as such those weren't built on a pure 32-bit kernel.
This is now fixed by moving the CONFIG_PA20 #ifdef to prevent the compilation
of OPCODE_LDD_L and OPCODE_FSTD_L only, and handling the fldd and fstd
instructions.

The second problem are two bugs in the 32-bit inline assembly code, where the
wrong registers where used. The calculation of the natural alignment used %2
(vall) instead of %3 (ior), and the first word was stored back to address %1
(valh) instead of %3 (ior).

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/unaligned.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 237d20dd5622d..a238b7fe8908b 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -397,7 +397,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 	__asm__ __volatile__ (
 "	mtsp	%4, %%sr1\n"
 "	zdep	%2, 29, 2, %%r19\n"
-"	dep	%%r0, 31, 2, %2\n"
+"	dep	%%r0, 31, 2, %3\n"
 "	mtsar	%%r19\n"
 "	zvdepi	-2, 32, %%r19\n"
 "1:	ldw	0(%%sr1,%3),%%r20\n"
@@ -409,7 +409,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 "	andcm	%%r21, %%r19, %%r21\n"
 "	or	%1, %%r20, %1\n"
 "	or	%2, %%r21, %2\n"
-"3:	stw	%1,0(%%sr1,%1)\n"
+"3:	stw	%1,0(%%sr1,%3)\n"
 "4:	stw	%%r1,4(%%sr1,%3)\n"
 "5:	stw	%2,8(%%sr1,%3)\n"
 "	copy	%%r0, %0\n"
@@ -596,7 +596,6 @@ void handle_unaligned(struct pt_regs *regs)
 		ret = ERR_NOTHANDLED;	/* "undefined", but lets kill them. */
 		break;
 	}
-#ifdef CONFIG_PA20
 	switch (regs->iir & OPCODE2_MASK)
 	{
 	case OPCODE_FLDD_L:
@@ -607,14 +606,15 @@ void handle_unaligned(struct pt_regs *regs)
 		flop=1;
 		ret = emulate_std(regs, R2(regs->iir),1);
 		break;
+#ifdef CONFIG_PA20
 	case OPCODE_LDD_L:
 		ret = emulate_ldd(regs, R2(regs->iir),0);
 		break;
 	case OPCODE_STD_L:
 		ret = emulate_std(regs, R2(regs->iir),0);
 		break;
-	}
 #endif
+	}
 	switch (regs->iir & OPCODE3_MASK)
 	{
 	case OPCODE_FLDW_L:
-- 
GitLab


From 646b532f32eafff0e3cda1ece4da1091b936cf88 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Fri, 18 Feb 2022 23:40:14 +0100
Subject: [PATCH 4155/4878] parisc/unaligned: Fix ldw() and stw() unalignment
 handlers

commit a97279836867b1cb50a3d4f0b1bf60e0abe6d46c upstream.

Fix 3 bugs:

a) emulate_stw() doesn't return the error code value, so faulting
instructions are not reported and aborted.

b) Tell emulate_ldw() to handle fldw_l as floating point instruction

c) Tell emulate_ldw() to handle ldw_m as integer instruction

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/parisc/kernel/unaligned.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index a238b7fe8908b..286cec4d86d7b 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -340,7 +340,7 @@ static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
 	: "r" (val), "r" (regs->ior), "r" (regs->isr)
 	: "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
 
-	return 0;
+	return ret;
 }
 static int emulate_std(struct pt_regs *regs, int frreg, int flop)
 {
@@ -619,10 +619,10 @@ void handle_unaligned(struct pt_regs *regs)
 	{
 	case OPCODE_FLDW_L:
 		flop=1;
-		ret = emulate_ldw(regs, R2(regs->iir),0);
+		ret = emulate_ldw(regs, R2(regs->iir), 1);
 		break;
 	case OPCODE_LDW_M:
-		ret = emulate_ldw(regs, R2(regs->iir),1);
+		ret = emulate_ldw(regs, R2(regs->iir), 0);
 		break;
 
 	case OPCODE_FSTW_L:
-- 
GitLab


From 72fdfc75d4217b32363cc80def3de2cb3fef3f02 Mon Sep 17 00:00:00 2001
From: Liang Zhang <zhangliang5@huawei.com>
Date: Tue, 22 Feb 2022 11:12:39 +0800
Subject: [PATCH 4156/4878] KVM: x86/mmu: make apf token non-zero to fix bug

commit 6f3c1fc53d86d580d8d6d749c4af23705e4f6f79 upstream.

In current async pagefault logic, when a page is ready, KVM relies on
kvm_arch_can_dequeue_async_page_present() to determine whether to deliver
a READY event to the Guest. This function test token value of struct
kvm_vcpu_pv_apf_data, which must be reset to zero by Guest kernel when a
READY event is finished by Guest. If value is zero meaning that a READY
event is done, so the KVM can deliver another.
But the kvm_arch_setup_async_pf() may produce a valid token with zero
value, which is confused with previous mention and may lead the loss of
this READY event.

This bug may cause task blocked forever in Guest:
 INFO: task stress:7532 blocked for more than 1254 seconds.
       Not tainted 5.10.0 #16
 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 task:stress          state:D stack:    0 pid: 7532 ppid:  1409
 flags:0x00000080
 Call Trace:
  __schedule+0x1e7/0x650
  schedule+0x46/0xb0
  kvm_async_pf_task_wait_schedule+0xad/0xe0
  ? exit_to_user_mode_prepare+0x60/0x70
  __kvm_handle_async_pf+0x4f/0xb0
  ? asm_exc_page_fault+0x8/0x30
  exc_page_fault+0x6f/0x110
  ? asm_exc_page_fault+0x8/0x30
  asm_exc_page_fault+0x1e/0x30
 RIP: 0033:0x402d00
 RSP: 002b:00007ffd31912500 EFLAGS: 00010206
 RAX: 0000000000071000 RBX: ffffffffffffffff RCX: 00000000021a32b0
 RDX: 000000000007d011 RSI: 000000000007d000 RDI: 00000000021262b0
 RBP: 00000000021262b0 R08: 0000000000000003 R09: 0000000000000086
 R10: 00000000000000eb R11: 00007fefbdf2baa0 R12: 0000000000000000
 R13: 0000000000000002 R14: 000000000007d000 R15: 0000000000001000

Signed-off-by: Liang Zhang <zhangliang5@huawei.com>
Message-Id: <20220222031239.1076682-1-zhangliang5@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/mmu/mmu.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index c2516ddc3cbec..20d29ae8ed702 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -3631,12 +3631,23 @@ static void shadow_page_table_clear_flood(struct kvm_vcpu *vcpu, gva_t addr)
 	walk_shadow_page_lockless_end(vcpu);
 }
 
+static u32 alloc_apf_token(struct kvm_vcpu *vcpu)
+{
+	/* make sure the token value is not 0 */
+	u32 id = vcpu->arch.apf.id;
+
+	if (id << 12 == 0)
+		vcpu->arch.apf.id = 1;
+
+	return (vcpu->arch.apf.id++ << 12) | vcpu->vcpu_id;
+}
+
 static bool kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
 				    gfn_t gfn)
 {
 	struct kvm_arch_async_pf arch;
 
-	arch.token = (vcpu->arch.apf.id++ << 12) | vcpu->vcpu_id;
+	arch.token = alloc_apf_token(vcpu);
 	arch.gfn = gfn;
 	arch.direct_map = vcpu->arch.mmu->direct_map;
 	arch.cr3 = vcpu->arch.mmu->get_guest_pgd(vcpu);
-- 
GitLab


From ff9134882dfafcab4cd3204a4c901f95544d66a9 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Thu, 20 Jan 2022 16:15:52 +0800
Subject: [PATCH 4157/4878] drm/amdgpu: disable MMHUB PG for Picasso

commit f626dd0ff05043e5a7154770cc7cda66acee33a3 upstream.

MMHUB PG needs to be disabled for Picasso for stability reasons.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/soc15.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 37226cbbbd11a..7212b9900e0ab 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1194,8 +1194,11 @@ static int soc15_common_early_init(void *handle)
 				AMD_CG_SUPPORT_SDMA_MGCG |
 				AMD_CG_SUPPORT_SDMA_LS;
 
+			/*
+			 * MMHUB PG needs to be disabled for Picasso for
+			 * stability reasons.
+			 */
 			adev->pg_flags = AMD_PG_SUPPORT_SDMA |
-				AMD_PG_SUPPORT_MMHUB |
 				AMD_PG_SUPPORT_VCN;
 		} else {
 			adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG |
-- 
GitLab


From 55eec5c630eac8034bbfb772bb2e2bccc0777a2b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Fri, 18 Feb 2022 08:40:34 +0200
Subject: [PATCH 4158/4878] drm/i915: Correctly populate use_sagv_wm for all
 pipes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit afc189df6bcc6be65961deb54e15ec60e7f85337 upstream.

When changing between SAGV vs. no SAGV on tgl+ we have to
update the use_sagv_wm flag for all the crtcs or else
an active pipe not already in the state will end up using
the wrong watermarks. That is especially bad when we end up
with the tighter non-SAGV watermarks with SAGV enabled.
Usually ends up in underruns.

Cc: stable@vger.kernel.org
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Fixes: 7241c57d3140 ("drm/i915: Add TGL+ SAGV support")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220218064039.12834-2-ville.syrjala@linux.intel.com
(cherry picked from commit 8dd8ffb824ca7b897ce9f2082ffa7e64831c22dc)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/intel_pm.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e51ca7ca0a2a7..472aaea75ef84 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3996,6 +3996,17 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
 			return ret;
 	}
 
+	if (intel_can_enable_sagv(dev_priv, new_bw_state) !=
+	    intel_can_enable_sagv(dev_priv, old_bw_state)) {
+		ret = intel_atomic_serialize_global_state(&new_bw_state->base);
+		if (ret)
+			return ret;
+	} else if (new_bw_state->pipe_sagv_reject != old_bw_state->pipe_sagv_reject) {
+		ret = intel_atomic_lock_global_state(&new_bw_state->base);
+		if (ret)
+			return ret;
+	}
+
 	for_each_new_intel_crtc_in_state(state, crtc,
 					 new_crtc_state, i) {
 		struct skl_pipe_wm *pipe_wm = &new_crtc_state->wm.skl.optimal;
@@ -4010,17 +4021,6 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
 				       intel_can_enable_sagv(dev_priv, new_bw_state);
 	}
 
-	if (intel_can_enable_sagv(dev_priv, new_bw_state) !=
-	    intel_can_enable_sagv(dev_priv, old_bw_state)) {
-		ret = intel_atomic_serialize_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	} else if (new_bw_state->pipe_sagv_reject != old_bw_state->pipe_sagv_reject) {
-		ret = intel_atomic_lock_global_state(&new_bw_state->base);
-		if (ret)
-			return ret;
-	}
-
 	return 0;
 }
 
-- 
GitLab


From 4f5f5411f0c14ac0b61d5e6a77d996dd3d5b5fd3 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Thu, 17 Feb 2022 14:10:44 +0100
Subject: [PATCH 4159/4878] sr9700: sanity check for packet length

commit e9da0b56fe27206b49f39805f7dcda8a89379062 upstream.

A malicious device can leak heap data to user space
providing bogus frame lengths. Introduce a sanity check.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/sr9700.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
index e04c8054c2cf3..fce6713e970ba 100644
--- a/drivers/net/usb/sr9700.c
+++ b/drivers/net/usb/sr9700.c
@@ -410,7 +410,7 @@ static int sr9700_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 		/* ignore the CRC length */
 		len = (skb->data[1] | (skb->data[2] << 8)) - 4;
 
-		if (len > ETH_FRAME_LEN)
+		if (len > ETH_FRAME_LEN || len > skb->len)
 			return 0;
 
 		/* the last packet of current skb */
-- 
GitLab


From 2aeba1ea7ce8bf82b688cdffb844d26014e243b2 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Mon, 14 Feb 2022 15:08:18 +0100
Subject: [PATCH 4160/4878] USB: zaurus: support another broken Zaurus

commit 6605cc67ca18b9d583eb96e18a20f5f4e726103c upstream.

This SL-6000 says Direct Line, not Ethernet

v2: added Reporter and Link

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: Ross Maynard <bids.7405@bigpond.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215361
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/cdc_ether.c | 12 ++++++++++++
 drivers/net/usb/zaurus.c    | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 6aaa0675c28a3..43ddbe61dc58e 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -570,6 +570,11 @@ static const struct usb_device_id	products[] = {
 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_ETHERNET, \
 	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
 
+#define ZAURUS_FAKE_INTERFACE \
+	.bInterfaceClass	= USB_CLASS_COMM, \
+	.bInterfaceSubClass	= USB_CDC_SUBCLASS_MDLM, \
+	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
+
 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
  * wire-incompatible with true CDC Ethernet implementations.
  * (And, it seems, needlessly so...)
@@ -623,6 +628,13 @@ static const struct usb_device_id	products[] = {
 	.idProduct              = 0x9032,	/* SL-6000 */
 	ZAURUS_MASTER_INTERFACE,
 	.driver_info		= 0,
+}, {
+	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
+		 | USB_DEVICE_ID_MATCH_DEVICE,
+	.idVendor               = 0x04DD,
+	.idProduct              = 0x9032,	/* SL-6000 */
+	ZAURUS_FAKE_INTERFACE,
+	.driver_info		= 0,
 }, {
 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
 		 | USB_DEVICE_ID_MATCH_DEVICE,
diff --git a/drivers/net/usb/zaurus.c b/drivers/net/usb/zaurus.c
index 8e717a0b559b3..7984f2157d222 100644
--- a/drivers/net/usb/zaurus.c
+++ b/drivers/net/usb/zaurus.c
@@ -256,6 +256,11 @@ static const struct usb_device_id	products [] = {
 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_ETHERNET, \
 	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
 
+#define ZAURUS_FAKE_INTERFACE \
+	.bInterfaceClass	= USB_CLASS_COMM, \
+	.bInterfaceSubClass	= USB_CDC_SUBCLASS_MDLM, \
+	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
+
 /* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
 {
 	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
@@ -313,6 +318,13 @@ static const struct usb_device_id	products [] = {
 	.idProduct              = 0x9032,	/* SL-6000 */
 	ZAURUS_MASTER_INTERFACE,
 	.driver_info = ZAURUS_PXA_INFO,
+}, {
+	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
+			    | USB_DEVICE_ID_MATCH_DEVICE,
+	.idVendor		= 0x04DD,
+	.idProduct		= 0x9032,	/* SL-6000 */
+	ZAURUS_FAKE_INTERFACE,
+	.driver_info = (unsigned long)&bogus_mdlm_info,
 }, {
 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
 		 | USB_DEVICE_ID_MATCH_DEVICE,
-- 
GitLab


From 69560efa001397ebb8dc1c3e6a3ce00302bb9f7f Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Tue, 15 Feb 2022 11:35:47 +0100
Subject: [PATCH 4161/4878] CDC-NCM: avoid overflow in sanity checking

commit 8d2b1a1ec9f559d30b724877da4ce592edc41fdc upstream.

A broken device may give an extreme offset like 0xFFF0
and a reasonable length for a fragment. In the sanity
check as formulated now, this will create an integer
overflow, defeating the sanity check. Both offset
and offset + len need to be checked in such a manner
that no overflow can occur.
And those quantities should be unsigned.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/cdc_ncm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index eaaa5aee58251..ab91fa5b0194d 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1702,10 +1702,10 @@ int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in)
 {
 	struct sk_buff *skb;
 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
-	int len;
+	unsigned int len;
 	int nframes;
 	int x;
-	int offset;
+	unsigned int offset;
 	union {
 		struct usb_cdc_ncm_ndp16 *ndp16;
 		struct usb_cdc_ncm_ndp32 *ndp32;
@@ -1777,8 +1777,8 @@ next_ndp:
 			break;
 		}
 
-		/* sanity checking */
-		if (((offset + len) > skb_in->len) ||
+		/* sanity checking - watch out for integer wrap*/
+		if ((offset > skb_in->len) || (len > skb_in->len - offset) ||
 				(len > ctx->rx_max) || (len < ETH_HLEN)) {
 			netif_dbg(dev, rx_err, dev->net,
 				  "invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n",
-- 
GitLab


From 68f19845f580a1d3ac1ef40e95b0250804e046bb Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 17 Feb 2022 23:41:20 +0100
Subject: [PATCH 4162/4878] netfilter: nf_tables_offload: incorrect flow
 offload action array size

commit b1a5983f56e371046dcf164f90bfaf704d2b89f6 upstream.

immediate verdict expression needs to allocate one slot in the flow offload
action array, however, immediate data expression does not need to do so.

fwd and dup expression need to allocate one slot, this is missing.

Add a new offload_action interface to report if this expression needs to
allocate one slot in the flow offload action array.

Fixes: be2861dc36d7 ("netfilter: nft_{fwd,dup}_netdev: add offload support")
Reported-and-tested-by: Nick Gregory <Nick.Gregory@Sophos.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/netfilter/nf_tables.h         |  2 +-
 include/net/netfilter/nf_tables_offload.h |  2 --
 net/netfilter/nf_tables_offload.c         |  3 ++-
 net/netfilter/nft_dup_netdev.c            |  6 ++++++
 net/netfilter/nft_fwd_netdev.c            |  6 ++++++
 net/netfilter/nft_immediate.c             | 12 +++++++++++-
 6 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index ed4a9d098164f..76bfb6cd5815d 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -825,7 +825,7 @@ struct nft_expr_ops {
 	int				(*offload)(struct nft_offload_ctx *ctx,
 						   struct nft_flow_rule *flow,
 						   const struct nft_expr *expr);
-	u32				offload_flags;
+	bool				(*offload_action)(const struct nft_expr *expr);
 	const struct nft_expr_type	*type;
 	void				*data;
 };
diff --git a/include/net/netfilter/nf_tables_offload.h b/include/net/netfilter/nf_tables_offload.h
index 434a6158852f3..7a453a35a41dd 100644
--- a/include/net/netfilter/nf_tables_offload.h
+++ b/include/net/netfilter/nf_tables_offload.h
@@ -67,8 +67,6 @@ struct nft_flow_rule {
 	struct flow_rule	*rule;
 };
 
-#define NFT_OFFLOAD_F_ACTION	(1 << 0)
-
 void nft_flow_rule_set_addr_type(struct nft_flow_rule *flow,
 				 enum flow_dissector_key_id addr_type);
 
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index e5fcbb0e4b8e5..839fd09f1bb4a 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -94,7 +94,8 @@ struct nft_flow_rule *nft_flow_rule_create(struct net *net,
 
 	expr = nft_expr_first(rule);
 	while (nft_expr_more(rule, expr)) {
-		if (expr->ops->offload_flags & NFT_OFFLOAD_F_ACTION)
+		if (expr->ops->offload_action &&
+		    expr->ops->offload_action(expr))
 			num_actions++;
 
 		expr = nft_expr_next(expr);
diff --git a/net/netfilter/nft_dup_netdev.c b/net/netfilter/nft_dup_netdev.c
index 40788b3f1071a..70c457476b874 100644
--- a/net/netfilter/nft_dup_netdev.c
+++ b/net/netfilter/nft_dup_netdev.c
@@ -67,6 +67,11 @@ static int nft_dup_netdev_offload(struct nft_offload_ctx *ctx,
 	return nft_fwd_dup_netdev_offload(ctx, flow, FLOW_ACTION_MIRRED, oif);
 }
 
+static bool nft_dup_netdev_offload_action(const struct nft_expr *expr)
+{
+	return true;
+}
+
 static struct nft_expr_type nft_dup_netdev_type;
 static const struct nft_expr_ops nft_dup_netdev_ops = {
 	.type		= &nft_dup_netdev_type,
@@ -75,6 +80,7 @@ static const struct nft_expr_ops nft_dup_netdev_ops = {
 	.init		= nft_dup_netdev_init,
 	.dump		= nft_dup_netdev_dump,
 	.offload	= nft_dup_netdev_offload,
+	.offload_action	= nft_dup_netdev_offload_action,
 };
 
 static struct nft_expr_type nft_dup_netdev_type __read_mostly = {
diff --git a/net/netfilter/nft_fwd_netdev.c b/net/netfilter/nft_fwd_netdev.c
index b77985986b24e..3b0dcd170551b 100644
--- a/net/netfilter/nft_fwd_netdev.c
+++ b/net/netfilter/nft_fwd_netdev.c
@@ -77,6 +77,11 @@ static int nft_fwd_netdev_offload(struct nft_offload_ctx *ctx,
 	return nft_fwd_dup_netdev_offload(ctx, flow, FLOW_ACTION_REDIRECT, oif);
 }
 
+static bool nft_fwd_netdev_offload_action(const struct nft_expr *expr)
+{
+	return true;
+}
+
 struct nft_fwd_neigh {
 	enum nft_registers	sreg_dev:8;
 	enum nft_registers	sreg_addr:8;
@@ -219,6 +224,7 @@ static const struct nft_expr_ops nft_fwd_netdev_ops = {
 	.dump		= nft_fwd_netdev_dump,
 	.validate	= nft_fwd_validate,
 	.offload	= nft_fwd_netdev_offload,
+	.offload_action	= nft_fwd_netdev_offload_action,
 };
 
 static const struct nft_expr_ops *
diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
index c63eb3b171784..5c9d88560a474 100644
--- a/net/netfilter/nft_immediate.c
+++ b/net/netfilter/nft_immediate.c
@@ -213,6 +213,16 @@ static int nft_immediate_offload(struct nft_offload_ctx *ctx,
 	return 0;
 }
 
+static bool nft_immediate_offload_action(const struct nft_expr *expr)
+{
+	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+
+	if (priv->dreg == NFT_REG_VERDICT)
+		return true;
+
+	return false;
+}
+
 static const struct nft_expr_ops nft_imm_ops = {
 	.type		= &nft_imm_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_immediate_expr)),
@@ -224,7 +234,7 @@ static const struct nft_expr_ops nft_imm_ops = {
 	.dump		= nft_immediate_dump,
 	.validate	= nft_immediate_validate,
 	.offload	= nft_immediate_offload,
-	.offload_flags	= NFT_OFFLOAD_F_ACTION,
+	.offload_action	= nft_immediate_offload_action,
 };
 
 struct nft_expr_type nft_imm_type __read_mostly = {
-- 
GitLab


From bae7fc6f0dc66d8a80316c09ed7ee286f33cd731 Mon Sep 17 00:00:00 2001
From: Brian Geffon <bgeffon@google.com>
Date: Tue, 15 Feb 2022 11:22:33 -0800
Subject: [PATCH 4163/4878] x86/fpu: Correct pkru/xstate inconsistency

When eagerly switching PKRU in switch_fpu_finish() it checks that
current is not a kernel thread as kernel threads will never use PKRU.
It's possible that this_cpu_read_stable() on current_task
(ie. get_current()) is returning an old cached value. To resolve this
reference next_p directly rather than relying on current.

As written it's possible when switching from a kernel thread to a
userspace thread to observe a cached PF_KTHREAD flag and never restore
the PKRU. And as a result this issue only occurs when switching
from a kernel thread to a userspace thread, switching from a non kernel
thread works perfectly fine because all that is considered in that
situation are the flags from some other non kernel task and the next fpu
is passed in to switch_fpu_finish().

This behavior only exists between 5.2 and 5.13 when it was fixed by a
rewrite decoupling PKRU from xstate, in:
  commit 954436989cc5 ("x86/fpu: Remove PKRU handling from switch_fpu_finish()")

Unfortunately backporting the fix from 5.13 is probably not realistic as
it's part of a 60+ patch series which rewrites most of the PKRU handling.

Fixes: 0cecca9d03c9 ("x86/fpu: Eager switch PKRU state")
Signed-off-by: Brian Geffon <bgeffon@google.com>
Signed-off-by: Willis Kung <williskung@google.com>
Tested-by: Willis Kung <williskung@google.com>
Cc: <stable@vger.kernel.org> # v5.4.x
Cc: <stable@vger.kernel.org> # v5.10.x
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/fpu/internal.h | 13 ++++++++-----
 arch/x86/kernel/process_32.c        |  6 ++----
 arch/x86/kernel/process_64.c        |  6 ++----
 3 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 4e5af2b00d89b..70b9bc5403c5e 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -531,9 +531,11 @@ static inline void __fpregs_load_activate(void)
  * The FPU context is only stored/restored for a user task and
  * PF_KTHREAD is used to distinguish between kernel and user threads.
  */
-static inline void switch_fpu_prepare(struct fpu *old_fpu, int cpu)
+static inline void switch_fpu_prepare(struct task_struct *prev, int cpu)
 {
-	if (static_cpu_has(X86_FEATURE_FPU) && !(current->flags & PF_KTHREAD)) {
+	struct fpu *old_fpu = &prev->thread.fpu;
+
+	if (static_cpu_has(X86_FEATURE_FPU) && !(prev->flags & PF_KTHREAD)) {
 		if (!copy_fpregs_to_fpstate(old_fpu))
 			old_fpu->last_cpu = -1;
 		else
@@ -552,10 +554,11 @@ static inline void switch_fpu_prepare(struct fpu *old_fpu, int cpu)
  * Load PKRU from the FPU context if available. Delay loading of the
  * complete FPU state until the return to userland.
  */
-static inline void switch_fpu_finish(struct fpu *new_fpu)
+static inline void switch_fpu_finish(struct task_struct *next)
 {
 	u32 pkru_val = init_pkru_value;
 	struct pkru_state *pk;
+	struct fpu *next_fpu = &next->thread.fpu;
 
 	if (!static_cpu_has(X86_FEATURE_FPU))
 		return;
@@ -569,7 +572,7 @@ static inline void switch_fpu_finish(struct fpu *new_fpu)
 	 * PKRU state is switched eagerly because it needs to be valid before we
 	 * return to userland e.g. for a copy_to_user() operation.
 	 */
-	if (!(current->flags & PF_KTHREAD)) {
+	if (!(next->flags & PF_KTHREAD)) {
 		/*
 		 * If the PKRU bit in xsave.header.xfeatures is not set,
 		 * then the PKRU component was in init state, which means
@@ -578,7 +581,7 @@ static inline void switch_fpu_finish(struct fpu *new_fpu)
 		 * in memory is not valid. This means pkru_val has to be
 		 * set to 0 and not to init_pkru_value.
 		 */
-		pk = get_xsave_addr(&new_fpu->state.xsave, XFEATURE_PKRU);
+		pk = get_xsave_addr(&next_fpu->state.xsave, XFEATURE_PKRU);
 		pkru_val = pk ? pk->pkru : 0;
 	}
 	__write_pkru(pkru_val);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 4f2f54e1281c3..98bf8fd189025 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -159,14 +159,12 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 {
 	struct thread_struct *prev = &prev_p->thread,
 			     *next = &next_p->thread;
-	struct fpu *prev_fpu = &prev->fpu;
-	struct fpu *next_fpu = &next->fpu;
 	int cpu = smp_processor_id();
 
 	/* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
 
 	if (!test_thread_flag(TIF_NEED_FPU_LOAD))
-		switch_fpu_prepare(prev_fpu, cpu);
+		switch_fpu_prepare(prev_p, cpu);
 
 	/*
 	 * Save away %gs. No need to save %fs, as it was saved on the
@@ -213,7 +211,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 
 	this_cpu_write(current_task, next_p);
 
-	switch_fpu_finish(next_fpu);
+	switch_fpu_finish(next_p);
 
 	/* Load the Intel cache allocation PQR MSR. */
 	resctrl_sched_in();
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index df342bedea88a..ad3f82a18de9d 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -535,15 +535,13 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 {
 	struct thread_struct *prev = &prev_p->thread;
 	struct thread_struct *next = &next_p->thread;
-	struct fpu *prev_fpu = &prev->fpu;
-	struct fpu *next_fpu = &next->fpu;
 	int cpu = smp_processor_id();
 
 	WARN_ON_ONCE(IS_ENABLED(CONFIG_DEBUG_ENTRY) &&
 		     this_cpu_read(irq_count) != -1);
 
 	if (!test_thread_flag(TIF_NEED_FPU_LOAD))
-		switch_fpu_prepare(prev_fpu, cpu);
+		switch_fpu_prepare(prev_p, cpu);
 
 	/* We must save %fs and %gs before load_TLS() because
 	 * %fs and %gs may be cleared by load_TLS().
@@ -595,7 +593,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	this_cpu_write(current_task, next_p);
 	this_cpu_write(cpu_current_top_of_stack, task_top_of_stack(next_p));
 
-	switch_fpu_finish(next_fpu);
+	switch_fpu_finish(next_p);
 
 	/* Reload sp0. */
 	update_task_stack(next_p);
-- 
GitLab


From eb354613847d824f268d2c985c7b4d30a209799e Mon Sep 17 00:00:00 2001
From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Mon, 4 Oct 2021 16:11:52 +0200
Subject: [PATCH 4164/4878] tee: export teedev_open() and
 teedev_close_context()

commit 1e2c3ef0496e72ba9001da5fd1b7ed56ccb30597 upstream.

Exports the two functions teedev_open() and teedev_close_context() in
order to make it easier to create a driver internal struct tee_context.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tee/tee_core.c  |  6 ++++--
 include/linux/tee_drv.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index dfc239c64ce3c..e07f997cf8dd3 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -43,7 +43,7 @@ static DEFINE_SPINLOCK(driver_lock);
 static struct class *tee_class;
 static dev_t tee_devt;
 
-static struct tee_context *teedev_open(struct tee_device *teedev)
+struct tee_context *teedev_open(struct tee_device *teedev)
 {
 	int rc;
 	struct tee_context *ctx;
@@ -70,6 +70,7 @@ err:
 	return ERR_PTR(rc);
 
 }
+EXPORT_SYMBOL_GPL(teedev_open);
 
 void teedev_ctx_get(struct tee_context *ctx)
 {
@@ -96,13 +97,14 @@ void teedev_ctx_put(struct tee_context *ctx)
 	kref_put(&ctx->refcount, teedev_ctx_release);
 }
 
-static void teedev_close_context(struct tee_context *ctx)
+void teedev_close_context(struct tee_context *ctx)
 {
 	struct tee_device *teedev = ctx->teedev;
 
 	teedev_ctx_put(ctx);
 	tee_device_put(teedev);
 }
+EXPORT_SYMBOL_GPL(teedev_close_context);
 
 static int tee_open(struct inode *inode, struct file *filp)
 {
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 0c6c1de6f3b77..18a9949bba187 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -582,4 +582,18 @@ struct tee_client_driver {
 #define to_tee_client_driver(d) \
 		container_of(d, struct tee_client_driver, driver)
 
+/**
+ * teedev_open() - Open a struct tee_device
+ * @teedev:	Device to open
+ *
+ * @return a pointer to struct tee_context on success or an ERR_PTR on failure.
+ */
+struct tee_context *teedev_open(struct tee_device *teedev);
+
+/**
+ * teedev_close_context() - closes a struct tee_context
+ * @ctx:	The struct tee_context to close
+ */
+void teedev_close_context(struct tee_context *ctx);
+
 #endif /*__TEE_DRV_H*/
-- 
GitLab


From 5da17865c7f31b52743536dbcb417fb804dc667a Mon Sep 17 00:00:00 2001
From: Jens Wiklander <jens.wiklander@linaro.org>
Date: Thu, 27 Jan 2022 15:29:39 +0100
Subject: [PATCH 4165/4878] optee: use driver internal tee_context for some rpc

commit aceeafefff736057e8f93f19bbfbef26abd94604 upstream.

Adds a driver private tee_context by moving the tee_context in struct
optee_notif to struct optee. This tee_context was previously used when
doing internal calls to secure world to deliver notification.

The new driver internal tee_context is now also when allocating driver
private shared memory. This decouples the shared memory object from its
original tee_context. This is needed when the life time of such a memory
allocation outlives the client tee_context.

This patch fixes the problem described below:

The addition of a shutdown hook by commit f25889f93184 ("optee: fix tee out
of memory failure seen during kexec reboot") introduced a kernel shutdown
regression that can be triggered after running the OP-TEE xtest suites.

Once the shutdown hook is called it is not possible to communicate any more
with the supplicant process because the system is not scheduling task any
longer. Thus if the optee driver shutdown path receives a supplicant RPC
request from the OP-TEE we will deadlock the kernel's shutdown.

Fixes: f25889f93184 ("optee: fix tee out of memory failure seen during kexec reboot")
Fixes: 217e0250cccb ("tee: use reference counting for tee_context")
Reported-by: Lars Persson <larper@axis.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
[JW: backport to 5.10-stable + update commit message]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tee/optee/core.c          | 8 ++++++++
 drivers/tee/optee/optee_private.h | 2 ++
 drivers/tee/optee/rpc.c           | 8 +++++---
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c
index f255a96ae5a48..6ea80add7378f 100644
--- a/drivers/tee/optee/core.c
+++ b/drivers/tee/optee/core.c
@@ -588,6 +588,7 @@ static int optee_remove(struct platform_device *pdev)
 	/* Unregister OP-TEE specific client devices on TEE bus */
 	optee_unregister_devices();
 
+	teedev_close_context(optee->ctx);
 	/*
 	 * Ask OP-TEE to free all cached shared memory objects to decrease
 	 * reference counters and also avoid wild pointers in secure world
@@ -633,6 +634,7 @@ static int optee_probe(struct platform_device *pdev)
 	struct optee *optee = NULL;
 	void *memremaped_shm = NULL;
 	struct tee_device *teedev;
+	struct tee_context *ctx;
 	u32 sec_caps;
 	int rc;
 
@@ -719,6 +721,12 @@ static int optee_probe(struct platform_device *pdev)
 	optee_supp_init(&optee->supp);
 	optee->memremaped_shm = memremaped_shm;
 	optee->pool = pool;
+	ctx = teedev_open(optee->teedev);
+	if (IS_ERR(ctx)) {
+		rc = PTR_ERR(ctx);
+		goto err;
+	}
+	optee->ctx = ctx;
 
 	/*
 	 * Ensure that there are no pre-existing shm objects before enabling
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h
index f6bb4a763ba94..ea09533e30cde 100644
--- a/drivers/tee/optee/optee_private.h
+++ b/drivers/tee/optee/optee_private.h
@@ -70,6 +70,7 @@ struct optee_supp {
  * struct optee - main service struct
  * @supp_teedev:	supplicant device
  * @teedev:		client device
+ * @ctx:		driver internal TEE context
  * @invoke_fn:		function to issue smc or hvc
  * @call_queue:		queue of threads waiting to call @invoke_fn
  * @wait_queue:		queue of threads from secure world waiting for a
@@ -87,6 +88,7 @@ struct optee {
 	struct tee_device *supp_teedev;
 	struct tee_device *teedev;
 	optee_invoke_fn *invoke_fn;
+	struct tee_context *ctx;
 	struct optee_call_queue call_queue;
 	struct optee_wait_queue wait_queue;
 	struct optee_supp supp;
diff --git a/drivers/tee/optee/rpc.c b/drivers/tee/optee/rpc.c
index 9dbdd783d6f2d..f1e0332b0f6e8 100644
--- a/drivers/tee/optee/rpc.c
+++ b/drivers/tee/optee/rpc.c
@@ -284,6 +284,7 @@ static struct tee_shm *cmd_alloc_suppl(struct tee_context *ctx, size_t sz)
 }
 
 static void handle_rpc_func_cmd_shm_alloc(struct tee_context *ctx,
+					  struct optee *optee,
 					  struct optee_msg_arg *arg,
 					  struct optee_call_ctx *call_ctx)
 {
@@ -313,7 +314,8 @@ static void handle_rpc_func_cmd_shm_alloc(struct tee_context *ctx,
 		shm = cmd_alloc_suppl(ctx, sz);
 		break;
 	case OPTEE_MSG_RPC_SHM_TYPE_KERNEL:
-		shm = tee_shm_alloc(ctx, sz, TEE_SHM_MAPPED | TEE_SHM_PRIV);
+		shm = tee_shm_alloc(optee->ctx, sz,
+				    TEE_SHM_MAPPED | TEE_SHM_PRIV);
 		break;
 	default:
 		arg->ret = TEEC_ERROR_BAD_PARAMETERS;
@@ -470,7 +472,7 @@ static void handle_rpc_func_cmd(struct tee_context *ctx, struct optee *optee,
 		break;
 	case OPTEE_MSG_RPC_CMD_SHM_ALLOC:
 		free_pages_list(call_ctx);
-		handle_rpc_func_cmd_shm_alloc(ctx, arg, call_ctx);
+		handle_rpc_func_cmd_shm_alloc(ctx, optee, arg, call_ctx);
 		break;
 	case OPTEE_MSG_RPC_CMD_SHM_FREE:
 		handle_rpc_func_cmd_shm_free(ctx, arg);
@@ -501,7 +503,7 @@ void optee_handle_rpc(struct tee_context *ctx, struct optee_rpc_param *param,
 
 	switch (OPTEE_SMC_RETURN_GET_RPC_FUNC(param->a0)) {
 	case OPTEE_SMC_RPC_FUNC_ALLOC:
-		shm = tee_shm_alloc(ctx, param->a1,
+		shm = tee_shm_alloc(optee->ctx, param->a1,
 				    TEE_SHM_MAPPED | TEE_SHM_PRIV);
 		if (!IS_ERR(shm) && !tee_shm_get_pa(shm, 0, &pa)) {
 			reg_pair_from_64(&param->a1, &param->a2, pa);
-- 
GitLab


From 5419b5be883bb5459192618c42d6c919906e16b1 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 23 Feb 2022 22:41:08 -0500
Subject: [PATCH 4166/4878] ping: remove pr_err from ping_lookup

commit cd33bdcbead882c2e58fdb4a54a7bd75b610a452 upstream.

As Jakub noticed, prints should be avoided on the datapath.
Also, as packets would never come to the else branch in
ping_lookup(), remove pr_err() from ping_lookup().

Fixes: 35a79e64de29 ("ping: fix the dif and sdif check in ping_lookup")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/1ef3f2fcd31bd681a193b1fcf235eee1603819bd.1645674068.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/ping.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 323cb231cb580..e60ca03543a53 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -187,7 +187,6 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 			 (int)ident, &ipv6_hdr(skb)->daddr, dif);
 #endif
 	} else {
-		pr_err("ping: protocol(%x) is not supported\n", ntohs(skb->protocol));
 		return NULL;
 	}
 
-- 
GitLab


From 51e96061c66c22a6fc5df5923e7c036303ff59e1 Mon Sep 17 00:00:00 2001
From: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Date: Fri, 18 Feb 2022 18:23:41 +0300
Subject: [PATCH 4167/4878] perf data: Fix double free in
 perf_session__delete()

commit 69560e366fc4d5fca7bebb0e44edbfafc8bcaf05 upstream.

When perf_data__create_dir() fails, it calls close_dir(), but
perf_session__delete() also calls close_dir() and since dir.version and
dir.nr were initialized by perf_data__create_dir(), a double free occurs.

This patch moves the initialization of dir.version and dir.nr after
successful initialization of dir.files, that prevents double freeing.
This behavior is already implemented in perf_data__open_dir().

Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220218152341.5197-2-alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/util/data.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index bcb494dc816a0..48754083791d8 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -44,10 +44,6 @@ int perf_data__create_dir(struct perf_data *data, int nr)
 	if (!files)
 		return -ENOMEM;
 
-	data->dir.version = PERF_DIR_VERSION;
-	data->dir.files   = files;
-	data->dir.nr      = nr;
-
 	for (i = 0; i < nr; i++) {
 		struct perf_data_file *file = &files[i];
 
@@ -62,6 +58,9 @@ int perf_data__create_dir(struct perf_data *data, int nr)
 		file->fd = ret;
 	}
 
+	data->dir.version = PERF_DIR_VERSION;
+	data->dir.files   = files;
+	data->dir.nr      = nr;
 	return 0;
 
 out_err:
-- 
GitLab


From 7e1eae5d1a7c3992c599910a9dac955cd0390d79 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manishc@marvell.com>
Date: Wed, 23 Feb 2022 00:57:20 -0800
Subject: [PATCH 4168/4878] bnx2x: fix driver load from initrd

commit e13ad1443684f7afaff24cf207e85e97885256bd upstream.

Commit b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0") added
new firmware support in the driver with maintaining older firmware
compatibility. However, older firmware was not added in MODULE_FIRMWARE()
which caused missing firmware files in initrd image leading to driver load
failure from initrd. This patch adds MODULE_FIRMWARE() for older firmware
version to have firmware files included in initrd.

Fixes: b7a49f73059f ("bnx2x: Utilize firmware 7.13.21.0")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215627
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Link: https://lore.kernel.org/r/20220223085720.12021-1-manishc@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 9a86367a26369..7fa271db41b07 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -100,6 +100,9 @@ MODULE_LICENSE("GPL");
 MODULE_FIRMWARE(FW_FILE_NAME_E1);
 MODULE_FIRMWARE(FW_FILE_NAME_E1H);
 MODULE_FIRMWARE(FW_FILE_NAME_E2);
+MODULE_FIRMWARE(FW_FILE_NAME_E1_V15);
+MODULE_FIRMWARE(FW_FILE_NAME_E1H_V15);
+MODULE_FIRMWARE(FW_FILE_NAME_E2_V15);
 
 int bnx2x_num_queues;
 module_param_named(num_queues, bnx2x_num_queues, int, 0444);
-- 
GitLab


From d8b78314c5ba09e17a0df652c68a7be59511f999 Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@broadcom.com>
Date: Sun, 20 Feb 2022 04:05:47 -0500
Subject: [PATCH 4169/4878] bnxt_en: Fix active FEC reporting to ethtool

commit 84d3c83e6ea7d46cf3de3a54578af73eb24a64f2 upstream.

ethtool --show-fec <interface> does not show anything when the Active
FEC setting in the chip is set to None.  Fix it to properly return
ETHTOOL_FEC_OFF in that case.

Fixes: 8b2775890ad8 ("bnxt_en: Report FEC settings to ethtool.")
Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 6f9196ff2ac4f..98087b278d1f4 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1926,6 +1926,9 @@ static int bnxt_get_fecparam(struct net_device *dev,
 	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE:
 		fec->active_fec |= ETHTOOL_FEC_LLRS;
 		break;
+	case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_NONE_ACTIVE:
+		fec->active_fec |= ETHTOOL_FEC_OFF;
+		break;
 	}
 	return 0;
 }
-- 
GitLab


From 962b2a3188bfa5388756ffbc47dfa5ff59cb8011 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 21 Feb 2022 08:32:14 -0800
Subject: [PATCH 4170/4878] hwmon: Handle failure to register sensor with
 thermal zone correctly

commit 1b5f517cca36292076d9e38fa6e33a257703e62e upstream.

If an attempt is made to a sensor with a thermal zone and it fails,
the call to devm_thermal_zone_of_sensor_register() may return -ENODEV.
This may result in crashes similar to the following.

Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd
...
Internal error: Oops: 96000021 [#1] PREEMPT SMP
...
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mutex_lock+0x18/0x60
lr : thermal_zone_device_update+0x40/0x2e0
sp : ffff800014c4fc60
x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790
x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000
x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd
x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000
x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040
x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000
x5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd
x2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd
Call trace:
 mutex_lock+0x18/0x60
 hwmon_notify_event+0xfc/0x110
 0xffffdde1cb7a0a90
 0xffffdde1cb7a0b7c
 irq_thread_fn+0x2c/0xa0
 irq_thread+0x134/0x240
 kthread+0x178/0x190
 ret_from_fork+0x10/0x20
Code: d503201f d503201f d2800001 aa0103e4 (c8e47c02)

Jon Hunter reports that the exact call sequence is:

hwmon_notify_event()
  --> hwmon_thermal_notify()
    --> thermal_zone_device_update()
      --> update_temperature()
        --> mutex_lock()

The hwmon core needs to handle all errors returned from calls
to devm_thermal_zone_of_sensor_register(). If the call fails
with -ENODEV, report that the sensor was not attached to a
thermal zone  but continue to register the hwmon device.

Reported-by: Jon Hunter <jonathanh@nvidia.com>
Cc: Dmitry Osipenko <digetx@gmail.com>
Fixes: 1597b374af222 ("hwmon: Add notification support")
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/hwmon.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index e5a83f7492677..d649fea829994 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -178,12 +178,14 @@ static int hwmon_thermal_add_sensor(struct device *dev, int index)
 
 	tzd = devm_thermal_zone_of_sensor_register(dev, index, tdata,
 						   &hwmon_thermal_ops);
-	/*
-	 * If CONFIG_THERMAL_OF is disabled, this returns -ENODEV,
-	 * so ignore that error but forward any other error.
-	 */
-	if (IS_ERR(tzd) && (PTR_ERR(tzd) != -ENODEV))
-		return PTR_ERR(tzd);
+	if (IS_ERR(tzd)) {
+		if (PTR_ERR(tzd) != -ENODEV)
+			return PTR_ERR(tzd);
+		dev_info(dev, "temp%d_input not attached to any thermal zone\n",
+			 index + 1);
+		devm_kfree(dev, tdata);
+		return 0;
+	}
 
 	err = devm_add_action(dev, hwmon_thermal_remove_sensor, &tdata->node);
 	if (err)
-- 
GitLab


From d0caa7218d76b373d404545b4e63d72af338939f Mon Sep 17 00:00:00 2001
From: Felix Maurer <fmaurer@redhat.com>
Date: Wed, 9 Feb 2022 16:55:26 +0100
Subject: [PATCH 4171/4878] bpf: Do not try bpf_msg_push_data with len 0

commit 4a11678f683814df82fca9018d964771e02d7e6d upstream.

If bpf_msg_push_data() is called with len 0 (as it happens during
selftests/bpf/test_sockmap), we do not need to do anything and can
return early.

Calling bpf_msg_push_data() with len 0 previously lead to a wrong ENOMEM
error: we later called get_order(copy + len); if len was 0, copy + len
was also often 0 and get_order() returned some undefined value (at the
moment 52). alloc_pages() caught that and failed, but then bpf_msg_push_data()
returned ENOMEM. This was wrong because we are most probably not out of
memory and actually do not need any additional memory.

Fixes: 6fff607e2f14b ("bpf: sk_msg program helper bpf_msg_push_data")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/df69012695c7094ccb1943ca02b4920db3537466.1644421921.git.fmaurer@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/filter.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/filter.c b/net/core/filter.c
index 7fa4283f2a8c0..659a328024713 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2730,6 +2730,9 @@ BPF_CALL_4(bpf_msg_push_data, struct sk_msg *, msg, u32, start,
 	if (unlikely(flags))
 		return -EINVAL;
 
+	if (unlikely(len == 0))
+		return 0;
+
 	/* First find the starting scatterlist element */
 	i = msg->sg.start;
 	do {
-- 
GitLab


From 4f5d47e6b43f518f0bafbab1a1343d8b410a11b6 Mon Sep 17 00:00:00 2001
From: Felix Maurer <fmaurer@redhat.com>
Date: Fri, 11 Feb 2022 18:43:36 +0100
Subject: [PATCH 4172/4878] selftests: bpf: Check bpf_msg_push_data return
 value

commit 61d06f01f9710b327a53492e5add9f972eb909b3 upstream.

bpf_msg_push_data may return a non-zero value to indicate an error. The
return value should be checked to prevent undetected errors.

To indicate an error, the BPF programs now perform a different action
than their intended one to make the userspace test program notice the
error, i.e., the programs supposed to pass/redirect drop, the program
supposed to drop passes.

Fixes: 84fbfe026acaa ("bpf: test_sockmap add options to use msg_push_data")
Signed-off-by: Felix Maurer <fmaurer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/89f767bb44005d6b4dd1f42038c438f76b3ebfad.1644601294.git.fmaurer@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../selftests/bpf/progs/test_sockmap_kern.h   | 26 +++++++++++++------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_kern.h b/tools/testing/selftests/bpf/progs/test_sockmap_kern.h
index 1858435de7aaf..5cb90ca292186 100644
--- a/tools/testing/selftests/bpf/progs/test_sockmap_kern.h
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_kern.h
@@ -235,7 +235,7 @@ SEC("sk_msg1")
 int bpf_prog4(struct sk_msg_md *msg)
 {
 	int *bytes, zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5;
-	int *start, *end, *start_push, *end_push, *start_pop, *pop;
+	int *start, *end, *start_push, *end_push, *start_pop, *pop, err = 0;
 
 	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
 	if (bytes)
@@ -249,8 +249,11 @@ int bpf_prog4(struct sk_msg_md *msg)
 		bpf_msg_pull_data(msg, *start, *end, 0);
 	start_push = bpf_map_lookup_elem(&sock_bytes, &two);
 	end_push = bpf_map_lookup_elem(&sock_bytes, &three);
-	if (start_push && end_push)
-		bpf_msg_push_data(msg, *start_push, *end_push, 0);
+	if (start_push && end_push) {
+		err = bpf_msg_push_data(msg, *start_push, *end_push, 0);
+		if (err)
+			return SK_DROP;
+	}
 	start_pop = bpf_map_lookup_elem(&sock_bytes, &four);
 	pop = bpf_map_lookup_elem(&sock_bytes, &five);
 	if (start_pop && pop)
@@ -263,6 +266,7 @@ int bpf_prog6(struct sk_msg_md *msg)
 {
 	int zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5, key = 0;
 	int *bytes, *start, *end, *start_push, *end_push, *start_pop, *pop, *f;
+	int err = 0;
 	__u64 flags = 0;
 
 	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
@@ -279,8 +283,11 @@ int bpf_prog6(struct sk_msg_md *msg)
 
 	start_push = bpf_map_lookup_elem(&sock_bytes, &two);
 	end_push = bpf_map_lookup_elem(&sock_bytes, &three);
-	if (start_push && end_push)
-		bpf_msg_push_data(msg, *start_push, *end_push, 0);
+	if (start_push && end_push) {
+		err = bpf_msg_push_data(msg, *start_push, *end_push, 0);
+		if (err)
+			return SK_DROP;
+	}
 
 	start_pop = bpf_map_lookup_elem(&sock_bytes, &four);
 	pop = bpf_map_lookup_elem(&sock_bytes, &five);
@@ -338,7 +345,7 @@ SEC("sk_msg5")
 int bpf_prog10(struct sk_msg_md *msg)
 {
 	int *bytes, *start, *end, *start_push, *end_push, *start_pop, *pop;
-	int zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5;
+	int zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5, err = 0;
 
 	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
 	if (bytes)
@@ -352,8 +359,11 @@ int bpf_prog10(struct sk_msg_md *msg)
 		bpf_msg_pull_data(msg, *start, *end, 0);
 	start_push = bpf_map_lookup_elem(&sock_bytes, &two);
 	end_push = bpf_map_lookup_elem(&sock_bytes, &three);
-	if (start_push && end_push)
-		bpf_msg_push_data(msg, *start_push, *end_push, 0);
+	if (start_push && end_push) {
+		err = bpf_msg_push_data(msg, *start_push, *end_push, 0);
+		if (err)
+			return SK_PASS;
+	}
 	start_pop = bpf_map_lookup_elem(&sock_bytes, &four);
 	pop = bpf_map_lookup_elem(&sock_bytes, &five);
 	if (start_pop && pop)
-- 
GitLab


From 7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 17 Feb 2022 10:19:02 -0800
Subject: [PATCH 4173/4878] bpf: Add schedule points in batch ops

commit 75134f16e7dd0007aa474b281935c5f42e79f2c8 upstream.

syzbot reported various soft lockups caused by bpf batch operations.

 INFO: task kworker/1:1:27 blocked for more than 140 seconds.
 INFO: task hung in rcu_barrier

Nothing prevents batch ops to process huge amount of data,
we need to add schedule points in them.

Note that maybe_wait_bpf_programs(map) calls from
generic_map_delete_batch() can be factorized by moving
the call after the loop.

This will be done later in -next tree once we get this fix merged,
unless there is strong opinion doing this optimization sooner.

Fixes: aa2e93b8e58e ("bpf: Add generic support for update and delete batch ops")
Fixes: cb4d03ab499d ("bpf: Add generic support for lookup batch op")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Brian Vazquez <brianvv@google.com>
Link: https://lore.kernel.org/bpf/20220217181902.808742-1-eric.dumazet@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/bpf/syscall.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 209e6567cdab0..419dbc3d060ee 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -1308,6 +1308,7 @@ int generic_map_delete_batch(struct bpf_map *map,
 		maybe_wait_bpf_programs(map);
 		if (err)
 			break;
+		cond_resched();
 	}
 	if (copy_to_user(&uattr->batch.count, &cp, sizeof(cp)))
 		err = -EFAULT;
@@ -1365,6 +1366,7 @@ int generic_map_update_batch(struct bpf_map *map,
 
 		if (err)
 			break;
+		cond_resched();
 	}
 
 	if (copy_to_user(&uattr->batch.count, &cp, sizeof(cp)))
@@ -1462,6 +1464,7 @@ int generic_map_lookup_batch(struct bpf_map *map,
 		swap(prev_key, key);
 		retry = MAP_LOOKUP_RETRIES;
 		cp++;
+		cond_resched();
 	}
 
 	if (err == -EFAULT)
-- 
GitLab


From 4a93c6594613c3429b6f30136fff115c7f803af4 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 14 Feb 2022 20:10:03 -0800
Subject: [PATCH 4174/4878] io_uring: add a schedule point in io_add_buffers()

commit f240762f88b4b1b58561939ffd44837759756477 upstream.

Looping ~65535 times doing kmalloc() calls can trigger soft lockups,
especially with DEBUG features (like KASAN).

[  253.536212] watchdog: BUG: soft lockup - CPU#64 stuck for 26s! [b219417889:12575]
[  253.544433] Modules linked in: vfat fat i2c_mux_pca954x i2c_mux spidev cdc_acm xhci_pci xhci_hcd sha3_generic gq(O)
[  253.544451] CPU: 64 PID: 12575 Comm: b219417889 Tainted: G S         O      5.17.0-smp-DEV #801
[  253.544457] RIP: 0010:kernel_text_address (./include/asm-generic/sections.h:192 ./include/linux/kallsyms.h:29 kernel/extable.c:67 kernel/extable.c:98)
[  253.544464] Code: 0f 93 c0 48 c7 c1 e0 63 d7 a4 48 39 cb 0f 92 c1 20 c1 0f b6 c1 5b 5d c3 90 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 89 fb <48> c7 c0 00 00 80 a0 41 be 01 00 00 00 48 39 c7 72 0c 48 c7 c0 40
[  253.544468] RSP: 0018:ffff8882d8baf4c0 EFLAGS: 00000246
[  253.544471] RAX: 1ffff1105b175e00 RBX: ffffffffa13ef09a RCX: 00000000a13ef001
[  253.544474] RDX: ffffffffa13ef09a RSI: ffff8882d8baf558 RDI: ffffffffa13ef09a
[  253.544476] RBP: ffff8882d8baf4d8 R08: ffff8882d8baf5e0 R09: 0000000000000004
[  253.544479] R10: ffff8882d8baf5e8 R11: ffffffffa0d59a50 R12: ffff8882eab20380
[  253.544481] R13: ffffffffa0d59a50 R14: dffffc0000000000 R15: 1ffff1105b175eb0
[  253.544483] FS:  00000000016d3380(0000) GS:ffff88af48c00000(0000) knlGS:0000000000000000
[  253.544486] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  253.544488] CR2: 00000000004af0f0 CR3: 00000002eabfa004 CR4: 00000000003706e0
[  253.544491] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  253.544492] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  253.544494] Call Trace:
[  253.544496]  <TASK>
[  253.544498] ? io_queue_sqe (fs/io_uring.c:7143)
[  253.544505] __kernel_text_address (kernel/extable.c:78)
[  253.544508] unwind_get_return_address (arch/x86/kernel/unwind_frame.c:19)
[  253.544514] arch_stack_walk (arch/x86/kernel/stacktrace.c:27)
[  253.544517] ? io_queue_sqe (fs/io_uring.c:7143)
[  253.544521] stack_trace_save (kernel/stacktrace.c:123)
[  253.544527] ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)
[  253.544531] ? ____kasan_kmalloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:515)
[  253.544533] ? __kasan_kmalloc (mm/kasan/common.c:524)
[  253.544535] ? kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)
[  253.544541] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)
[  253.544544] ? __io_queue_sqe (fs/io_uring.c:?)
[  253.544551] __kasan_kmalloc (mm/kasan/common.c:524)
[  253.544553] kmem_cache_alloc_trace (./include/linux/kasan.h:270 mm/slab.c:3567)
[  253.544556] ? io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)
[  253.544560] io_issue_sqe (fs/io_uring.c:4556 fs/io_uring.c:4589 fs/io_uring.c:6828)
[  253.544564] ? __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)
[  253.544567] ? __kasan_slab_alloc (mm/kasan/common.c:39 mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)
[  253.544569] ? kmem_cache_alloc_bulk (mm/slab.h:732 mm/slab.c:3546)
[  253.544573] ? __io_alloc_req_refill (fs/io_uring.c:2078)
[  253.544578] ? io_submit_sqes (fs/io_uring.c:7441)
[  253.544581] ? __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)
[  253.544584] ? __x64_sys_io_uring_enter (fs/io_uring.c:10096)
[  253.544587] ? do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)
[  253.544590] ? entry_SYSCALL_64_after_hwframe (??:?)
[  253.544596] __io_queue_sqe (fs/io_uring.c:?)
[  253.544600] io_queue_sqe (fs/io_uring.c:7143)
[  253.544603] io_submit_sqe (fs/io_uring.c:?)
[  253.544608] io_submit_sqes (fs/io_uring.c:?)
[  253.544612] __se_sys_io_uring_enter (fs/io_uring.c:10154 fs/io_uring.c:10096)
[  253.544616] __x64_sys_io_uring_enter (fs/io_uring.c:10096)
[  253.544619] do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)
[  253.544623] entry_SYSCALL_64_after_hwframe (??:?)

Fixes: ddf0322db79c ("io_uring: add IORING_OP_PROVIDE_BUFFERS")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Cc: io-uring <io-uring@vger.kernel.org>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220215041003.2394784-1-eric.dumazet@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/io_uring.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 104dff9c71314..019cbde8c3d67 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4058,6 +4058,7 @@ static int io_add_buffers(struct io_provide_buf *pbuf, struct io_buffer **head)
 		} else {
 			list_add_tail(&buf->list, &(*head)->list);
 		}
+		cond_resched();
 	}
 
 	return i ? i : -ENOMEM;
-- 
GitLab


From c5722243d0e5428f3f62682fb38f03a1698578ba Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 20 Feb 2022 07:40:52 -0800
Subject: [PATCH 4175/4878] net: __pskb_pull_tail() & pskb_carve_frag_list()
 drop_monitor friends

commit ef527f968ae05c6717c39f49c8709a7e2c19183a upstream.

Whenever one of these functions pull all data from an skb in a frag_list,
use consume_skb() instead of kfree_skb() to avoid polluting drop
monitoring.

Fixes: 6fa01ccd8830 ("skbuff: Add pskb_extract() helper function")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220220154052.1308469-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/skbuff.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 0215ae898e836..fccc42c8ca0c7 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2139,7 +2139,7 @@ void *__pskb_pull_tail(struct sk_buff *skb, int delta)
 		/* Free pulled out fragments. */
 		while ((list = skb_shinfo(skb)->frag_list) != insp) {
 			skb_shinfo(skb)->frag_list = list->next;
-			kfree_skb(list);
+			consume_skb(list);
 		}
 		/* And insert new clone at head. */
 		if (clone) {
@@ -6044,7 +6044,7 @@ static int pskb_carve_frag_list(struct sk_buff *skb,
 	/* Free pulled out fragments. */
 	while ((list = shinfo->frag_list) != insp) {
 		shinfo->frag_list = list->next;
-		kfree_skb(list);
+		consume_skb(list);
 	}
 	/* And insert new clone at head. */
 	if (clone) {
-- 
GitLab


From b692d5dc6f541961379e123e31c4bea8ba0725f1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 22 Feb 2022 16:43:12 +0300
Subject: [PATCH 4176/4878] tipc: Fix end of loop tests for
 list_for_each_entry()

commit a1f8fec4dac8bc7b172b2bdbd881e015261a6322 upstream.

These tests are supposed to check if the loop exited via a break or not.
However the tests are wrong because if we did not exit via a break then
"p" is not a valid pointer.  In that case, it's the equivalent of
"if (*(u32 *)sr == *last_key) {".  That's going to work most of the time,
but there is a potential for those to be equal.

Fixes: 1593123a6a49 ("tipc: add name table dump to new netlink api")
Fixes: 1a1a143daf84 ("tipc: add publication dump to new netlink api")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/tipc/name_table.c | 2 +-
 net/tipc/socket.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index f6a6acef42235..54c5328f492d2 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -931,7 +931,7 @@ static int __tipc_nl_add_nametable_publ(struct tipc_nl_msg *msg,
 		list_for_each_entry(p, &sr->all_publ, all_publ)
 			if (p->key == *last_key)
 				break;
-		if (p->key != *last_key)
+		if (list_entry_is_head(p, &sr->all_publ, all_publ))
 			return -EPIPE;
 	} else {
 		p = list_first_entry(&sr->all_publ,
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index ce957ee5383c4..8d2c98531af45 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -3743,7 +3743,7 @@ static int __tipc_nl_list_sk_publ(struct sk_buff *skb,
 			if (p->key == *last_publ)
 				break;
 		}
-		if (p->key != *last_publ) {
+		if (list_entry_is_head(p, &tsk->publications, binding_sock)) {
 			/* We never set seq or call nl_dump_check_consistent()
 			 * this means that setting prev_seq here will cause the
 			 * consistence check to fail in the netlink callback
-- 
GitLab


From dac2490d9ee0b89dffc72f1172b8bbeb60eaec39 Mon Sep 17 00:00:00 2001
From: Tao Liu <thomas.liu@ucloud.cn>
Date: Fri, 18 Feb 2022 22:35:24 +0800
Subject: [PATCH 4177/4878] gso: do not skip outer ip header in case of ipip
 and net_failover

commit cc20cced0598d9a5ff91ae4ab147b3b5e99ee819 upstream.

We encounter a tcp drop issue in our cloud environment. Packet GROed in
host forwards to a VM virtio_net nic with net_failover enabled. VM acts
as a IPVS LB with ipip encapsulation. The full path like:
host gro -> vm virtio_net rx -> net_failover rx -> ipvs fullnat
 -> ipip encap -> net_failover tx -> virtio_net tx

When net_failover transmits a ipip pkt (gso_type = 0x0103, which means
SKB_GSO_TCPV4, SKB_GSO_DODGY and SKB_GSO_IPXIP4), there is no gso
did because it supports TSO and GSO_IPXIP4. But network_header points to
inner ip header.

Call Trace:
 tcp4_gso_segment        ------> return NULL
 inet_gso_segment        ------> inner iph, network_header points to
 ipip_gso_segment
 inet_gso_segment        ------> outer iph
 skb_mac_gso_segment

Afterwards virtio_net transmits the pkt, only inner ip header is modified.
And the outer one just keeps unchanged. The pkt will be dropped in remote
host.

Call Trace:
 inet_gso_segment        ------> inner iph, outer iph is skipped
 skb_mac_gso_segment
 __skb_gso_segment
 validate_xmit_skb
 validate_xmit_skb_list
 sch_direct_xmit
 __qdisc_run
 __dev_queue_xmit        ------> virtio_net
 dev_hard_start_xmit
 __dev_queue_xmit        ------> net_failover
 ip_finish_output2
 ip_output
 iptunnel_xmit
 ip_tunnel_xmit
 ipip_tunnel_xmit        ------> ipip
 dev_hard_start_xmit
 __dev_queue_xmit
 ip_finish_output2
 ip_output
 ip_forward
 ip_rcv
 __netif_receive_skb_one_core
 netif_receive_skb_internal
 napi_gro_receive
 receive_buf
 virtnet_poll
 net_rx_action

The root cause of this issue is specific with the rare combination of
SKB_GSO_DODGY and a tunnel device that adds an SKB_GSO_ tunnel option.
SKB_GSO_DODGY is set from external virtio_net. We need to reset network
header when callbacks.gso_segment() returns NULL.

This patch also includes ipv6_gso_segment(), considering SIT, etc.

Fixes: cb32f511a70b ("ipip: add GSO/TSO support")
Signed-off-by: Tao Liu <thomas.liu@ucloud.cn>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/af_inet.c     | 5 ++++-
 net/ipv6/ip6_offload.c | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index e2f85a16fad9b..742218594741a 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1374,8 +1374,11 @@ struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	}
 
 	ops = rcu_dereference(inet_offloads[proto]);
-	if (likely(ops && ops->callbacks.gso_segment))
+	if (likely(ops && ops->callbacks.gso_segment)) {
 		segs = ops->callbacks.gso_segment(skb, features);
+		if (!segs)
+			skb->network_header = skb_mac_header(skb) + nhoff - skb->head;
+	}
 
 	if (IS_ERR_OR_NULL(segs))
 		goto out;
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index a80f90bf3ae7d..15c8eef1ef443 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -113,6 +113,8 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 	if (likely(ops && ops->callbacks.gso_segment)) {
 		skb_reset_transport_header(skb);
 		segs = ops->callbacks.gso_segment(skb, features);
+		if (!segs)
+			skb->network_header = skb_mac_header(skb) + nhoff - skb->head;
 	}
 
 	if (IS_ERR_OR_NULL(segs))
-- 
GitLab


From 1df9d552fe84bb7d7a6a361b5bb8a9273f9f799d Mon Sep 17 00:00:00 2001
From: Paul Blakey <paulb@nvidia.com>
Date: Wed, 23 Feb 2022 18:34:16 +0200
Subject: [PATCH 4178/4878] openvswitch: Fix setting ipv6 fields causing hw
 csum failure

commit d9b5ae5c1b241b91480aa30408be12fe91af834a upstream.

Ipv6 ttl, label and tos fields are modified without first
pulling/pushing the ipv6 header, which would have updated
the hw csum (if available). This might cause csum validation
when sending the packet to the stack, as can be seen in
the trace below.

Fix this by updating skb->csum if available.

Trace resulted by ipv6 ttl dec and then sending packet
to conntrack [actions: set(ipv6(hlimit=63)),ct(zone=99)]:
[295241.900063] s_pf0vf2: hw csum failure
[295241.923191] Call Trace:
[295241.925728]  <IRQ>
[295241.927836]  dump_stack+0x5c/0x80
[295241.931240]  __skb_checksum_complete+0xac/0xc0
[295241.935778]  nf_conntrack_tcp_packet+0x398/0xba0 [nf_conntrack]
[295241.953030]  nf_conntrack_in+0x498/0x5e0 [nf_conntrack]
[295241.958344]  __ovs_ct_lookup+0xac/0x860 [openvswitch]
[295241.968532]  ovs_ct_execute+0x4a7/0x7c0 [openvswitch]
[295241.979167]  do_execute_actions+0x54a/0xaa0 [openvswitch]
[295242.001482]  ovs_execute_actions+0x48/0x100 [openvswitch]
[295242.006966]  ovs_dp_process_packet+0x96/0x1d0 [openvswitch]
[295242.012626]  ovs_vport_receive+0x6c/0xc0 [openvswitch]
[295242.028763]  netdev_frame_hook+0xc0/0x180 [openvswitch]
[295242.034074]  __netif_receive_skb_core+0x2ca/0xcb0
[295242.047498]  netif_receive_skb_internal+0x3e/0xc0
[295242.052291]  napi_gro_receive+0xba/0xe0
[295242.056231]  mlx5e_handle_rx_cqe_mpwrq_rep+0x12b/0x250 [mlx5_core]
[295242.062513]  mlx5e_poll_rx_cq+0xa0f/0xa30 [mlx5_core]
[295242.067669]  mlx5e_napi_poll+0xe1/0x6b0 [mlx5_core]
[295242.077958]  net_rx_action+0x149/0x3b0
[295242.086762]  __do_softirq+0xd7/0x2d6
[295242.090427]  irq_exit+0xf7/0x100
[295242.093748]  do_IRQ+0x7f/0xd0
[295242.096806]  common_interrupt+0xf/0xf
[295242.100559]  </IRQ>
[295242.102750] RIP: 0033:0x7f9022e88cbd
[295242.125246] RSP: 002b:00007f9022282b20 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffda
[295242.132900] RAX: 0000000000000005 RBX: 0000000000000010 RCX: 0000000000000000
[295242.140120] RDX: 00007f9022282ba8 RSI: 00007f9022282a30 RDI: 00007f9014005c30
[295242.147337] RBP: 00007f9014014d60 R08: 0000000000000020 R09: 00007f90254a8340
[295242.154557] R10: 00007f9022282a28 R11: 0000000000000246 R12: 0000000000000000
[295242.161775] R13: 00007f902308c000 R14: 000000000000002b R15: 00007f9022b71f40

Fixes: 3fdbd1ce11e5 ("openvswitch: add ipv6 'set' action")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Link: https://lore.kernel.org/r/20220223163416.24096-1-paulb@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/checksum.h    |  5 +++++
 net/openvswitch/actions.c | 46 ++++++++++++++++++++++++++++++++-------
 2 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/include/net/checksum.h b/include/net/checksum.h
index 0d05b9e8690b8..9c65b22722389 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -139,6 +139,11 @@ static inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)
 	*sum = ~csum16_add(csum16_sub(~(*sum), old), new);
 }
 
+static inline void csum_replace(__wsum *csum, __wsum old, __wsum new)
+{
+	*csum = csum_add(csum_sub(*csum, old), new);
+}
+
 struct sk_buff;
 void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
 			      __be32 from, __be32 to, bool pseudohdr);
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index fc487f9812fc5..525c1540f10e6 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -422,12 +422,43 @@ static void set_ipv6_addr(struct sk_buff *skb, u8 l4_proto,
 	memcpy(addr, new_addr, sizeof(__be32[4]));
 }
 
-static void set_ipv6_fl(struct ipv6hdr *nh, u32 fl, u32 mask)
+static void set_ipv6_dsfield(struct sk_buff *skb, struct ipv6hdr *nh, u8 ipv6_tclass, u8 mask)
 {
+	u8 old_ipv6_tclass = ipv6_get_dsfield(nh);
+
+	ipv6_tclass = OVS_MASKED(old_ipv6_tclass, ipv6_tclass, mask);
+
+	if (skb->ip_summed == CHECKSUM_COMPLETE)
+		csum_replace(&skb->csum, (__force __wsum)(old_ipv6_tclass << 12),
+			     (__force __wsum)(ipv6_tclass << 12));
+
+	ipv6_change_dsfield(nh, ~mask, ipv6_tclass);
+}
+
+static void set_ipv6_fl(struct sk_buff *skb, struct ipv6hdr *nh, u32 fl, u32 mask)
+{
+	u32 ofl;
+
+	ofl = nh->flow_lbl[0] << 16 |  nh->flow_lbl[1] << 8 |  nh->flow_lbl[2];
+	fl = OVS_MASKED(ofl, fl, mask);
+
 	/* Bits 21-24 are always unmasked, so this retains their values. */
-	OVS_SET_MASKED(nh->flow_lbl[0], (u8)(fl >> 16), (u8)(mask >> 16));
-	OVS_SET_MASKED(nh->flow_lbl[1], (u8)(fl >> 8), (u8)(mask >> 8));
-	OVS_SET_MASKED(nh->flow_lbl[2], (u8)fl, (u8)mask);
+	nh->flow_lbl[0] = (u8)(fl >> 16);
+	nh->flow_lbl[1] = (u8)(fl >> 8);
+	nh->flow_lbl[2] = (u8)fl;
+
+	if (skb->ip_summed == CHECKSUM_COMPLETE)
+		csum_replace(&skb->csum, (__force __wsum)htonl(ofl), (__force __wsum)htonl(fl));
+}
+
+static void set_ipv6_ttl(struct sk_buff *skb, struct ipv6hdr *nh, u8 new_ttl, u8 mask)
+{
+	new_ttl = OVS_MASKED(nh->hop_limit, new_ttl, mask);
+
+	if (skb->ip_summed == CHECKSUM_COMPLETE)
+		csum_replace(&skb->csum, (__force __wsum)(nh->hop_limit << 8),
+			     (__force __wsum)(new_ttl << 8));
+	nh->hop_limit = new_ttl;
 }
 
 static void set_ip_ttl(struct sk_buff *skb, struct iphdr *nh, u8 new_ttl,
@@ -545,18 +576,17 @@ static int set_ipv6(struct sk_buff *skb, struct sw_flow_key *flow_key,
 		}
 	}
 	if (mask->ipv6_tclass) {
-		ipv6_change_dsfield(nh, ~mask->ipv6_tclass, key->ipv6_tclass);
+		set_ipv6_dsfield(skb, nh, key->ipv6_tclass, mask->ipv6_tclass);
 		flow_key->ip.tos = ipv6_get_dsfield(nh);
 	}
 	if (mask->ipv6_label) {
-		set_ipv6_fl(nh, ntohl(key->ipv6_label),
+		set_ipv6_fl(skb, nh, ntohl(key->ipv6_label),
 			    ntohl(mask->ipv6_label));
 		flow_key->ipv6.label =
 		    *(__be32 *)nh & htonl(IPV6_FLOWINFO_FLOWLABEL);
 	}
 	if (mask->ipv6_hlimit) {
-		OVS_SET_MASKED(nh->hop_limit, key->ipv6_hlimit,
-			       mask->ipv6_hlimit);
+		set_ipv6_ttl(skb, nh, key->ipv6_hlimit, mask->ipv6_hlimit);
 		flow_key->ip.ttl = nh->hop_limit;
 	}
 	return 0;
-- 
GitLab


From fd020eaaa24a676f11a58c527dcd928f18d66a6c Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Thu, 3 Feb 2022 12:54:16 +0100
Subject: [PATCH 4179/4878] drm/edid: Always set RGB444
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit ecbd4912a693b862e25cba0a6990a8c95b00721e upstream.

In order to fill the drm_display_info structure each time an EDID is
read, the code currently will call drm_add_display_info with the parsed
EDID.

drm_add_display_info will then call drm_reset_display_info to reset all
the fields to 0, and then set them to the proper value depending on the
EDID.

In the color_formats case, we will thus report that we don't support any
color format, and then fill it back with RGB444 plus the additional
formats described in the EDID Feature Support byte.

However, since that byte only contains format-related bits since the 1.4
specification, this doesn't happen if the EDID is following an earlier
specification. In turn, it means that for one of these EDID, we end up
with color_formats set to 0.

The EDID 1.3 specification never really specifies what it means by RGB
exactly, but since both HDMI and DVI will use RGB444, it's fairly safe
to assume it's supposed to be RGB444.

Let's move the addition of RGB444 to color_formats earlier in
drm_add_display_info() so that it's always set for a digital display.

Fixes: da05a5a71ad8 ("drm: parse color format support for digital displays")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220203115416.1137308-1-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/drm_edid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index add317bd8d55c..3d7593ea79f14 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5132,6 +5132,7 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
 		return quirks;
 
+	info->color_formats |= DRM_COLOR_FORMAT_RGB444;
 	drm_parse_cea_ext(connector, edid);
 
 	/*
@@ -5180,7 +5181,6 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi
 	DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
 			  connector->name, info->bpc);
 
-	info->color_formats |= DRM_COLOR_FORMAT_RGB444;
 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
 		info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
-- 
GitLab


From bc8f768af342dd63232346078828a7e932f8be8d Mon Sep 17 00:00:00 2001
From: Gal Pressman <gal@nvidia.com>
Date: Wed, 2 Feb 2022 16:07:21 +0200
Subject: [PATCH 4180/4878] net/mlx5e: Fix wrong return value on ioctl EEPROM
 query failure

commit 0b89429722353d112f8b8b29ca397e95fa994d27 upstream.

The ioctl EEPROM query wrongly returns success on read failures, fix
that by returning the appropriate error code.

Fixes: bb64143eee8c ("net/mlx5e: Add ethtool support for dump module EEPROM")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index bc7c1962f9e66..6a1b1363ac16a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1746,7 +1746,7 @@ static int mlx5e_get_module_eeprom(struct net_device *netdev,
 		if (size_read < 0) {
 			netdev_err(priv->netdev, "%s: mlx5_query_eeprom failed:0x%x\n",
 				   __func__, size_read);
-			return 0;
+			return size_read;
 		}
 
 		i += size_read;
-- 
GitLab


From 0fc1847359964e95e521cf2bb2b10f8e33dd0970 Mon Sep 17 00:00:00 2001
From: Paul Blakey <paulb@nvidia.com>
Date: Thu, 17 Feb 2022 11:30:48 +0200
Subject: [PATCH 4181/4878] net/sched: act_ct: Fix flow table lookup after ct
 clear or switching zones

commit 2f131de361f6d0eaff17db26efdb844c178432f8 upstream.

Flow table lookup is skipped if packet either went through ct clear
action (which set the IP_CT_UNTRACKED flag on the packet), or while
switching zones and there is already a connection associated with
the packet. This will result in no SW offload of the connection,
and the and connection not being removed from flow table with
TCP teardown (fin/rst packet).

To fix the above, remove these unneccary checks in flow
table lookup.

Fixes: 46475bb20f4b ("net/sched: act_ct: Software offload of established flows")
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sched/act_ct.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index 812c3c70a53a0..825b3e9b55f7e 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -514,11 +514,6 @@ static bool tcf_ct_flow_table_lookup(struct tcf_ct_params *p,
 	struct nf_conn *ct;
 	u8 dir;
 
-	/* Previously seen or loopback */
-	ct = nf_ct_get(skb, &ctinfo);
-	if ((ct && !nf_ct_is_template(ct)) || ctinfo == IP_CT_UNTRACKED)
-		return false;
-
 	switch (family) {
 	case NFPROTO_IPV4:
 		if (!tcf_ct_flow_table_fill_tuple_ipv4(skb, &tuple, &tcph))
-- 
GitLab


From 550d98ab3007af7627694ba915f85681d4276ffa Mon Sep 17 00:00:00 2001
From: Xiaoke Wang <xkernel.wang@foxmail.com>
Date: Fri, 18 Feb 2022 10:19:39 +0800
Subject: [PATCH 4182/4878] net: ll_temac: check the return value of
 devm_kmalloc()

commit b352c3465bb808ab700d03f5bac2f7a6f37c5350 upstream.

devm_kmalloc() returns a pointer to allocated memory on success, NULL
on failure. While lp->indirect_lock is allocated by devm_kmalloc()
without proper check. It is better to check the value of it to
prevent potential wrong memory access.

Fixes: f14f5c11f051 ("net: ll_temac: Support indirect_mutex share within TEMAC IP")
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/xilinx/ll_temac_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index 650ffb93796f1..130f4b707bdc4 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -1421,6 +1421,8 @@ static int temac_probe(struct platform_device *pdev)
 		lp->indirect_lock = devm_kmalloc(&pdev->dev,
 						 sizeof(*lp->indirect_lock),
 						 GFP_KERNEL);
+		if (!lp->indirect_lock)
+			return -ENOMEM;
 		spin_lock_init(lp->indirect_lock);
 	}
 
-- 
GitLab


From 58a6d5f24f49ab87f56b0045bb7abc3b701fa5c8 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <christophe.leroy@csgroup.eu>
Date: Thu, 17 Feb 2022 14:35:49 +0100
Subject: [PATCH 4183/4878] net: Force inlining of checksum functions in
 net/checksum.h

commit 5486f5bf790b5c664913076c3194b8f916a5c7ad upstream.

All functions defined as static inline in net/checksum.h are
meant to be inlined for performance reason.

But since commit ac7c3e4ff401 ("compiler: enable
CONFIG_OPTIMIZE_INLINING forcibly") the compiler is allowed to
uninline functions when it wants.

Fair enough in the general case, but for tiny performance critical
checksum helpers that's counter-productive.

The problem mainly arises when selecting CONFIG_CC_OPTIMISE_FOR_SIZE,
Those helpers being 'static inline' in header files you suddenly find
them duplicated many times in the resulting vmlinux.

Here is a typical exemple when building powerpc pmac32_defconfig
with CONFIG_CC_OPTIMISE_FOR_SIZE. csum_sub() appears 4 times:

	c04a23cc <csum_sub>:
	c04a23cc:	7c 84 20 f8 	not     r4,r4
	c04a23d0:	7c 63 20 14 	addc    r3,r3,r4
	c04a23d4:	7c 63 01 94 	addze   r3,r3
	c04a23d8:	4e 80 00 20 	blr
		...
	c04a2ce8:	4b ff f6 e5 	bl      c04a23cc <csum_sub>
		...
	c04a2d2c:	4b ff f6 a1 	bl      c04a23cc <csum_sub>
		...
	c04a2d54:	4b ff f6 79 	bl      c04a23cc <csum_sub>
		...
	c04a754c <csum_sub>:
	c04a754c:	7c 84 20 f8 	not     r4,r4
	c04a7550:	7c 63 20 14 	addc    r3,r3,r4
	c04a7554:	7c 63 01 94 	addze   r3,r3
	c04a7558:	4e 80 00 20 	blr
		...
	c04ac930:	4b ff ac 1d 	bl      c04a754c <csum_sub>
		...
	c04ad264:	4b ff a2 e9 	bl      c04a754c <csum_sub>
		...
	c04e3b08 <csum_sub>:
	c04e3b08:	7c 84 20 f8 	not     r4,r4
	c04e3b0c:	7c 63 20 14 	addc    r3,r3,r4
	c04e3b10:	7c 63 01 94 	addze   r3,r3
	c04e3b14:	4e 80 00 20 	blr
		...
	c04e5788:	4b ff e3 81 	bl      c04e3b08 <csum_sub>
		...
	c04e65c8:	4b ff d5 41 	bl      c04e3b08 <csum_sub>
		...
	c0512d34 <csum_sub>:
	c0512d34:	7c 84 20 f8 	not     r4,r4
	c0512d38:	7c 63 20 14 	addc    r3,r3,r4
	c0512d3c:	7c 63 01 94 	addze   r3,r3
	c0512d40:	4e 80 00 20 	blr
		...
	c0512dfc:	4b ff ff 39 	bl      c0512d34 <csum_sub>
		...
	c05138bc:	4b ff f4 79 	bl      c0512d34 <csum_sub>
		...

Restore the expected behaviour by using __always_inline for all
functions defined in net/checksum.h

vmlinux size is even reduced by 256 bytes with this patch:

	   text	   data	    bss	    dec	    hex	filename
	6980022	2515362	 194384	9689768	 93daa8	vmlinux.before
	6979862	2515266	 194384	9689512	 93d9a8	vmlinux.now

Fixes: ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly")
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/checksum.h | 43 +++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/include/net/checksum.h b/include/net/checksum.h
index 9c65b22722389..8b7d0c31598f5 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -22,7 +22,7 @@
 #include <asm/checksum.h>
 
 #ifndef _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
-static inline
+static __always_inline
 __wsum csum_and_copy_from_user (const void __user *src, void *dst,
 				      int len)
 {
@@ -33,7 +33,7 @@ __wsum csum_and_copy_from_user (const void __user *src, void *dst,
 #endif
 
 #ifndef HAVE_CSUM_COPY_USER
-static __inline__ __wsum csum_and_copy_to_user
+static __always_inline __wsum csum_and_copy_to_user
 (const void *src, void __user *dst, int len)
 {
 	__wsum sum = csum_partial(src, len, ~0U);
@@ -45,7 +45,7 @@ static __inline__ __wsum csum_and_copy_to_user
 #endif
 
 #ifndef _HAVE_ARCH_CSUM_AND_COPY
-static inline __wsum
+static __always_inline __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len)
 {
 	memcpy(dst, src, len);
@@ -54,7 +54,7 @@ csum_partial_copy_nocheck(const void *src, void *dst, int len)
 #endif
 
 #ifndef HAVE_ARCH_CSUM_ADD
-static inline __wsum csum_add(__wsum csum, __wsum addend)
+static __always_inline __wsum csum_add(__wsum csum, __wsum addend)
 {
 	u32 res = (__force u32)csum;
 	res += (__force u32)addend;
@@ -62,12 +62,12 @@ static inline __wsum csum_add(__wsum csum, __wsum addend)
 }
 #endif
 
-static inline __wsum csum_sub(__wsum csum, __wsum addend)
+static __always_inline __wsum csum_sub(__wsum csum, __wsum addend)
 {
 	return csum_add(csum, ~addend);
 }
 
-static inline __sum16 csum16_add(__sum16 csum, __be16 addend)
+static __always_inline __sum16 csum16_add(__sum16 csum, __be16 addend)
 {
 	u16 res = (__force u16)csum;
 
@@ -75,12 +75,12 @@ static inline __sum16 csum16_add(__sum16 csum, __be16 addend)
 	return (__force __sum16)(res + (res < (__force u16)addend));
 }
 
-static inline __sum16 csum16_sub(__sum16 csum, __be16 addend)
+static __always_inline __sum16 csum16_sub(__sum16 csum, __be16 addend)
 {
 	return csum16_add(csum, ~addend);
 }
 
-static inline __wsum
+static __always_inline __wsum
 csum_block_add(__wsum csum, __wsum csum2, int offset)
 {
 	u32 sum = (__force u32)csum2;
@@ -92,36 +92,37 @@ csum_block_add(__wsum csum, __wsum csum2, int offset)
 	return csum_add(csum, (__force __wsum)sum);
 }
 
-static inline __wsum
+static __always_inline __wsum
 csum_block_add_ext(__wsum csum, __wsum csum2, int offset, int len)
 {
 	return csum_block_add(csum, csum2, offset);
 }
 
-static inline __wsum
+static __always_inline __wsum
 csum_block_sub(__wsum csum, __wsum csum2, int offset)
 {
 	return csum_block_add(csum, ~csum2, offset);
 }
 
-static inline __wsum csum_unfold(__sum16 n)
+static __always_inline __wsum csum_unfold(__sum16 n)
 {
 	return (__force __wsum)n;
 }
 
-static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum)
+static __always_inline
+__wsum csum_partial_ext(const void *buff, int len, __wsum sum)
 {
 	return csum_partial(buff, len, sum);
 }
 
 #define CSUM_MANGLED_0 ((__force __sum16)0xffff)
 
-static inline void csum_replace_by_diff(__sum16 *sum, __wsum diff)
+static __always_inline void csum_replace_by_diff(__sum16 *sum, __wsum diff)
 {
 	*sum = csum_fold(csum_add(diff, ~csum_unfold(*sum)));
 }
 
-static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
+static __always_inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
 {
 	__wsum tmp = csum_sub(~csum_unfold(*sum), (__force __wsum)from);
 
@@ -134,7 +135,7 @@ static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
  *  m : old value of a 16bit field
  *  m' : new value of a 16bit field
  */
-static inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)
+static __always_inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)
 {
 	*sum = ~csum16_add(csum16_sub(~(*sum), old), new);
 }
@@ -153,16 +154,16 @@ void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff *skb,
 void inet_proto_csum_replace_by_diff(__sum16 *sum, struct sk_buff *skb,
 				     __wsum diff, bool pseudohdr);
 
-static inline void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,
-					    __be16 from, __be16 to,
-					    bool pseudohdr)
+static __always_inline
+void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,
+			      __be16 from, __be16 to, bool pseudohdr)
 {
 	inet_proto_csum_replace4(sum, skb, (__force __be32)from,
 				 (__force __be32)to, pseudohdr);
 }
 
-static inline __wsum remcsum_adjust(void *ptr, __wsum csum,
-				    int start, int offset)
+static __always_inline __wsum remcsum_adjust(void *ptr, __wsum csum,
+					     int start, int offset)
 {
 	__sum16 *psum = (__sum16 *)(ptr + offset);
 	__wsum delta;
@@ -178,7 +179,7 @@ static inline __wsum remcsum_adjust(void *ptr, __wsum csum,
 	return delta;
 }
 
-static inline void remcsum_unadjust(__sum16 *psum, __wsum delta)
+static __always_inline void remcsum_unadjust(__sum16 *psum, __wsum delta)
 {
 	*psum = csum_fold(csum_sub(delta, (__force __wsum)*psum));
 }
-- 
GitLab


From af4bc921d39dffdb83076e0a7eed1321242b7d87 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Fri, 18 Feb 2022 14:15:35 +0100
Subject: [PATCH 4184/4878] nfp: flower: Fix a potential leak in
 nfp_tunnel_add_shared_mac()

commit 3a14d0888eb4b0045884126acc69abfb7b87814d upstream.

ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX)
inclusive.
So NFP_MAX_MAC_INDEX (0xff) is a valid id.

In order for the error handling path to work correctly, the 'invalid'
value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range,
inclusive.

So set it to -1.

Fixes: 20cce8865098 ("nfp: flower: enable MAC address sharing for offloadable devs")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220218131535.100258-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
index d3d5b663a4a3c..088ceac07b805 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
@@ -922,8 +922,8 @@ nfp_tunnel_add_shared_mac(struct nfp_app *app, struct net_device *netdev,
 			  int port, bool mod)
 {
 	struct nfp_flower_priv *priv = app->priv;
-	int ida_idx = NFP_MAX_MAC_INDEX, err;
 	struct nfp_tun_offloaded_mac *entry;
+	int ida_idx = -1, err;
 	u16 nfp_mac_idx = 0;
 
 	entry = nfp_tunnel_lookup_offloaded_macs(app, netdev->dev_addr);
@@ -997,7 +997,7 @@ err_remove_hash:
 err_free_entry:
 	kfree(entry);
 err_free_ida:
-	if (ida_idx != NFP_MAX_MAC_INDEX)
+	if (ida_idx != -1)
 		ida_simple_remove(&priv->tun.mac_off_ids, ida_idx);
 
 	return err;
-- 
GitLab


From 7e9880e81d3fd6a43c202f205717485290432826 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 21 Feb 2022 13:31:49 +0100
Subject: [PATCH 4185/4878] netfilter: nf_tables: fix memory leak during
 stateful obj update

commit dad3bdeef45f81a6e90204bcc85360bb76eccec7 upstream.

stateful objects can be updated from the control plane.
The transaction logic allocates a temporary object for this purpose.

The ->init function was called for this object, so plain kfree() leaks
resources. We must call ->destroy function of the object.

nft_obj_destroy does this, but it also decrements the module refcount,
but the update path doesn't increment it.

To avoid special-casing the update object release, do module_get for
the update case too and release it via nft_obj_destroy().

Fixes: d62d0ba97b58 ("netfilter: nf_tables: Introduce stateful object update operation")
Cc: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nf_tables_api.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index b781ba97c474e..fdd1da9ecea9e 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -5924,12 +5924,15 @@ static int nf_tables_updobj(const struct nft_ctx *ctx,
 {
 	struct nft_object *newobj;
 	struct nft_trans *trans;
-	int err;
+	int err = -ENOMEM;
+
+	if (!try_module_get(type->owner))
+		return -ENOENT;
 
 	trans = nft_trans_alloc(ctx, NFT_MSG_NEWOBJ,
 				sizeof(struct nft_trans_obj));
 	if (!trans)
-		return -ENOMEM;
+		goto err_trans;
 
 	newobj = nft_obj_init(ctx, type, attr);
 	if (IS_ERR(newobj)) {
@@ -5946,6 +5949,8 @@ static int nf_tables_updobj(const struct nft_ctx *ctx,
 
 err_free_trans:
 	kfree(trans);
+err_trans:
+	module_put(type->owner);
 	return err;
 }
 
@@ -7555,7 +7560,7 @@ static void nft_obj_commit_update(struct nft_trans *trans)
 	if (obj->ops->update)
 		obj->ops->update(obj, newobj);
 
-	kfree(newobj);
+	nft_obj_destroy(&trans->ctx, newobj);
 }
 
 static void nft_commit_release(struct nft_trans *trans)
@@ -8202,7 +8207,7 @@ static int __nf_tables_abort(struct net *net, enum nfnl_abort_action action)
 			break;
 		case NFT_MSG_NEWOBJ:
 			if (nft_trans_obj_update(trans)) {
-				kfree(nft_trans_obj_newobj(trans));
+				nft_obj_destroy(&trans->ctx, nft_trans_obj_newobj(trans));
 				nft_trans_destroy(trans);
 			} else {
 				trans->ctx.table->use--;
-- 
GitLab


From 91f56a85278ebd6440ded1a6f82a9706cfcb0a7f Mon Sep 17 00:00:00 2001
From: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
Date: Wed, 23 Feb 2022 11:02:52 +0100
Subject: [PATCH 4186/4878] net/smc: Use a mutex for locking "struct
 smc_pnettable"

commit 7ff57e98fb78ad94edafbdc7435f2d745e9e6bb5 upstream.

smc_pnetid_by_table_ib() uses read_lock() and then it calls smc_pnet_apply_ib()
which, in turn, calls mutex_lock(&smc_ib_devices.mutex).

read_lock() disables preemption. Therefore, the code acquires a mutex while in
atomic context and it leads to a SAC bug.

Fix this bug by replacing the rwlock with a mutex.

Reported-and-tested-by: syzbot+4f322a6d84e991c38775@syzkaller.appspotmail.com
Fixes: 64e28b52c7a6 ("net/smc: add pnet table namespace support")
Confirmed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Link: https://lore.kernel.org/r/20220223100252.22562-1-fmdefrancesco@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/smc_pnet.c | 42 +++++++++++++++++++++---------------------
 net/smc/smc_pnet.h |  2 +-
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c
index f3c18b991d35c..9007c7e3bae4e 100644
--- a/net/smc/smc_pnet.c
+++ b/net/smc/smc_pnet.c
@@ -112,7 +112,7 @@ static int smc_pnet_remove_by_pnetid(struct net *net, char *pnet_name)
 	pnettable = &sn->pnettable;
 
 	/* remove table entry */
-	write_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry_safe(pnetelem, tmp_pe, &pnettable->pnetlist,
 				 list) {
 		if (!pnet_name ||
@@ -130,7 +130,7 @@ static int smc_pnet_remove_by_pnetid(struct net *net, char *pnet_name)
 			rc = 0;
 		}
 	}
-	write_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 
 	/* if this is not the initial namespace, stop here */
 	if (net != &init_net)
@@ -191,7 +191,7 @@ static int smc_pnet_add_by_ndev(struct net_device *ndev)
 	sn = net_generic(net, smc_net_id);
 	pnettable = &sn->pnettable;
 
-	write_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry_safe(pnetelem, tmp_pe, &pnettable->pnetlist, list) {
 		if (pnetelem->type == SMC_PNET_ETH && !pnetelem->ndev &&
 		    !strncmp(pnetelem->eth_name, ndev->name, IFNAMSIZ)) {
@@ -205,7 +205,7 @@ static int smc_pnet_add_by_ndev(struct net_device *ndev)
 			break;
 		}
 	}
-	write_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 	return rc;
 }
 
@@ -223,7 +223,7 @@ static int smc_pnet_remove_by_ndev(struct net_device *ndev)
 	sn = net_generic(net, smc_net_id);
 	pnettable = &sn->pnettable;
 
-	write_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry_safe(pnetelem, tmp_pe, &pnettable->pnetlist, list) {
 		if (pnetelem->type == SMC_PNET_ETH && pnetelem->ndev == ndev) {
 			dev_put(pnetelem->ndev);
@@ -236,7 +236,7 @@ static int smc_pnet_remove_by_ndev(struct net_device *ndev)
 			break;
 		}
 	}
-	write_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 	return rc;
 }
 
@@ -371,7 +371,7 @@ static int smc_pnet_add_eth(struct smc_pnettable *pnettable, struct net *net,
 
 	rc = -EEXIST;
 	new_netdev = true;
-	write_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry(tmp_pe, &pnettable->pnetlist, list) {
 		if (tmp_pe->type == SMC_PNET_ETH &&
 		    !strncmp(tmp_pe->eth_name, eth_name, IFNAMSIZ)) {
@@ -381,9 +381,9 @@ static int smc_pnet_add_eth(struct smc_pnettable *pnettable, struct net *net,
 	}
 	if (new_netdev) {
 		list_add_tail(&new_pe->list, &pnettable->pnetlist);
-		write_unlock(&pnettable->lock);
+		mutex_unlock(&pnettable->lock);
 	} else {
-		write_unlock(&pnettable->lock);
+		mutex_unlock(&pnettable->lock);
 		kfree(new_pe);
 		goto out_put;
 	}
@@ -445,7 +445,7 @@ static int smc_pnet_add_ib(struct smc_pnettable *pnettable, char *ib_name,
 	new_pe->ib_port = ib_port;
 
 	new_ibdev = true;
-	write_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry(tmp_pe, &pnettable->pnetlist, list) {
 		if (tmp_pe->type == SMC_PNET_IB &&
 		    !strncmp(tmp_pe->ib_name, ib_name, IB_DEVICE_NAME_MAX)) {
@@ -455,9 +455,9 @@ static int smc_pnet_add_ib(struct smc_pnettable *pnettable, char *ib_name,
 	}
 	if (new_ibdev) {
 		list_add_tail(&new_pe->list, &pnettable->pnetlist);
-		write_unlock(&pnettable->lock);
+		mutex_unlock(&pnettable->lock);
 	} else {
-		write_unlock(&pnettable->lock);
+		mutex_unlock(&pnettable->lock);
 		kfree(new_pe);
 	}
 	return (new_ibdev) ? 0 : -EEXIST;
@@ -602,7 +602,7 @@ static int _smc_pnet_dump(struct net *net, struct sk_buff *skb, u32 portid,
 	pnettable = &sn->pnettable;
 
 	/* dump pnettable entries */
-	read_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry(pnetelem, &pnettable->pnetlist, list) {
 		if (pnetid && !smc_pnet_match(pnetelem->pnet_name, pnetid))
 			continue;
@@ -617,7 +617,7 @@ static int _smc_pnet_dump(struct net *net, struct sk_buff *skb, u32 portid,
 			break;
 		}
 	}
-	read_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 	return idx;
 }
 
@@ -859,7 +859,7 @@ int smc_pnet_net_init(struct net *net)
 	struct smc_pnetids_ndev *pnetids_ndev = &sn->pnetids_ndev;
 
 	INIT_LIST_HEAD(&pnettable->pnetlist);
-	rwlock_init(&pnettable->lock);
+	mutex_init(&pnettable->lock);
 	INIT_LIST_HEAD(&pnetids_ndev->list);
 	rwlock_init(&pnetids_ndev->lock);
 
@@ -939,7 +939,7 @@ static int smc_pnet_find_ndev_pnetid_by_table(struct net_device *ndev,
 	sn = net_generic(net, smc_net_id);
 	pnettable = &sn->pnettable;
 
-	read_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry(pnetelem, &pnettable->pnetlist, list) {
 		if (pnetelem->type == SMC_PNET_ETH && ndev == pnetelem->ndev) {
 			/* get pnetid of netdev device */
@@ -948,7 +948,7 @@ static int smc_pnet_find_ndev_pnetid_by_table(struct net_device *ndev,
 			break;
 		}
 	}
-	read_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 	return rc;
 }
 
@@ -1129,7 +1129,7 @@ int smc_pnetid_by_table_ib(struct smc_ib_device *smcibdev, u8 ib_port)
 	sn = net_generic(&init_net, smc_net_id);
 	pnettable = &sn->pnettable;
 
-	read_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry(tmp_pe, &pnettable->pnetlist, list) {
 		if (tmp_pe->type == SMC_PNET_IB &&
 		    !strncmp(tmp_pe->ib_name, ib_name, IB_DEVICE_NAME_MAX) &&
@@ -1139,7 +1139,7 @@ int smc_pnetid_by_table_ib(struct smc_ib_device *smcibdev, u8 ib_port)
 			break;
 		}
 	}
-	read_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 
 	return rc;
 }
@@ -1158,7 +1158,7 @@ int smc_pnetid_by_table_smcd(struct smcd_dev *smcddev)
 	sn = net_generic(&init_net, smc_net_id);
 	pnettable = &sn->pnettable;
 
-	read_lock(&pnettable->lock);
+	mutex_lock(&pnettable->lock);
 	list_for_each_entry(tmp_pe, &pnettable->pnetlist, list) {
 		if (tmp_pe->type == SMC_PNET_IB &&
 		    !strncmp(tmp_pe->ib_name, ib_name, IB_DEVICE_NAME_MAX)) {
@@ -1167,7 +1167,7 @@ int smc_pnetid_by_table_smcd(struct smcd_dev *smcddev)
 			break;
 		}
 	}
-	read_unlock(&pnettable->lock);
+	mutex_unlock(&pnettable->lock);
 
 	return rc;
 }
diff --git a/net/smc/smc_pnet.h b/net/smc/smc_pnet.h
index 14039272f7e42..80a88eea49491 100644
--- a/net/smc/smc_pnet.h
+++ b/net/smc/smc_pnet.h
@@ -29,7 +29,7 @@ struct smc_link_group;
  * @pnetlist: List of PNETIDs
  */
 struct smc_pnettable {
-	rwlock_t lock;
+	struct mutex lock;
 	struct list_head pnetlist;
 };
 
-- 
GitLab


From a184f4dd9b330d57b997ee7b4b20e05ef22ef0cc Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 24 Feb 2022 11:18:48 +0100
Subject: [PATCH 4187/4878] surface: surface3_power: Fix battery readings on
 batteries without a serial number

commit 21d90aaee8d5c2a097ef41f1430d97661233ecc6 upstream.

The battery on the 2nd hand Surface 3 which I recently bought appears to
not have a serial number programmed in. This results in any I2C reads from
the registers containing the serial number failing with an I2C NACK.

This was causing mshw0011_bix() to fail causing the battery readings to
not work at all.

Ignore EREMOTEIO (I2C NACK) errors when retrieving the serial number and
continue with an empty serial number to fix this.

Fixes: b1f81b496b0d ("platform/x86: surface3_power: MSHW0011 rev-eng implementation")
BugLink: https://github.com/linux-surface/linux-surface/issues/608
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220224101848.7219-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/platform/x86/surface3_power.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/surface3_power.c b/drivers/platform/x86/surface3_power.c
index cc4f9cba68563..01aacf1bee074 100644
--- a/drivers/platform/x86/surface3_power.c
+++ b/drivers/platform/x86/surface3_power.c
@@ -233,14 +233,21 @@ static int mshw0011_bix(struct mshw0011_data *cdata, struct bix *bix)
 	}
 	bix->last_full_charg_capacity = ret;
 
-	/* get serial number */
+	/*
+	 * Get serial number, on some devices (with unofficial replacement
+	 * battery?) reading any of the serial number range addresses gets
+	 * nacked in this case just leave the serial number empty.
+	 */
 	ret = i2c_smbus_read_i2c_block_data(client, MSHW0011_BAT0_REG_SERIAL_NO,
 					    sizeof(buf), buf);
-	if (ret != sizeof(buf)) {
+	if (ret == -EREMOTEIO) {
+		/* no serial number available */
+	} else if (ret != sizeof(buf)) {
 		dev_err(&client->dev, "Error reading serial no: %d\n", ret);
 		return ret;
+	} else {
+		snprintf(bix->serial, ARRAY_SIZE(bix->serial), "%3pE%6pE", buf + 7, buf);
 	}
-	snprintf(bix->serial, ARRAY_SIZE(bix->serial), "%3pE%6pE", buf + 7, buf);
 
 	/* get cycle count */
 	ret = i2c_smbus_read_word_data(client, MSHW0011_BAT0_REG_CYCLE_CNT);
-- 
GitLab


From 1c5912895545038aebce0596209e5c95f4fc8dfb Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 22 Feb 2022 16:42:51 +0300
Subject: [PATCH 4188/4878] udp_tunnel: Fix end of loop test in
 udp_tunnel_nic_unregister()

commit de7b2efacf4e83954aed3f029d347dfc0b7a4f49 upstream.

This test is checking if we exited the list via break or not.  However
if it did not exit via a break then "node" does not point to a valid
udp_tunnel_nic_shared_node struct.  It will work because of the way
the structs are laid out it's the equivalent of
"if (info->shared->udp_tunnel_nic_info != dev)" which will always be
true, but it's not the right way to test.

Fixes: 74cc6d182d03 ("udp_tunnel: add the ability to share port tables")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/udp_tunnel_nic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/udp_tunnel_nic.c b/net/ipv4/udp_tunnel_nic.c
index b91003538d87a..bc3a043a5d5c7 100644
--- a/net/ipv4/udp_tunnel_nic.c
+++ b/net/ipv4/udp_tunnel_nic.c
@@ -846,7 +846,7 @@ udp_tunnel_nic_unregister(struct net_device *dev, struct udp_tunnel_nic *utn)
 		list_for_each_entry(node, &info->shared->devices, list)
 			if (node->dev == dev)
 				break;
-		if (node->dev != dev)
+		if (list_entry_is_head(node, &info->shared->devices, list))
 			return;
 
 		list_del(&node->list);
-- 
GitLab


From 8d617110d78e734a2c79060d8d36b822cb533053 Mon Sep 17 00:00:00 2001
From: Maor Gottlieb <maorg@nvidia.com>
Date: Mon, 24 Jan 2022 21:25:04 +0200
Subject: [PATCH 4189/4878] net/mlx5: Fix possible deadlock on rule deletion

commit b645e57debca846f51b3209907546ea857ddd3f5 upstream.

Add missing call to up_write_ref_node() which releases the semaphore
in case the FTE doesn't have destinations, such in drop rule case.

Fixes: 465e7baab6d9 ("net/mlx5: Fix deletion of duplicate rules")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 0ff034b0866e2..55772f0cbbf8f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -2034,6 +2034,8 @@ void mlx5_del_flow_rules(struct mlx5_flow_handle *handle)
 		fte->node.del_hw_func = NULL;
 		up_write_ref_node(&fte->node, false);
 		tree_put_node(&fte->node, false);
+	} else {
+		up_write_ref_node(&fte->node, false);
 	}
 	kfree(handle);
 }
-- 
GitLab


From be55d3e76c0ed422c35f8e98c09bce77886609af Mon Sep 17 00:00:00 2001
From: Ariel Levkovich <lariel@nvidia.com>
Date: Sat, 29 Jan 2022 01:39:24 +0200
Subject: [PATCH 4190/4878] net/mlx5: Fix wrong limitation of metadata match on
 ecpf

commit 07666c75ad17d7389b18ac0235c8cf41e1504ea8 upstream.

Match metadata support check returns false for ecpf device.
However, this support does exist for ecpf and therefore this
limitation should be removed to allow feature such as stacked
devices and internal port offloaded to be supported.

Fixes: 92ab1eb392c6 ("net/mlx5: E-Switch, Enable vport metadata matching if firmware supports it")
Signed-off-by: Ariel Levkovich <lariel@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index e06b1ba7d2349..ccc7dd3e738a4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2037,10 +2037,6 @@ esw_check_vport_match_metadata_supported(const struct mlx5_eswitch *esw)
 	if (!MLX5_CAP_ESW_FLOWTABLE(esw->dev, flow_source))
 		return false;
 
-	if (mlx5_core_is_ecpf_esw_manager(esw->dev) ||
-	    mlx5_ecpf_vport_exists(esw->dev))
-		return false;
-
 	return true;
 }
 
-- 
GitLab


From 67819b983eb3f3e6a72b663f04090f8f7d404551 Mon Sep 17 00:00:00 2001
From: Tariq Toukan <tariqt@nvidia.com>
Date: Mon, 31 Jan 2022 10:26:19 +0200
Subject: [PATCH 4191/4878] net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for
 device-offloaded packets

commit 7eaf1f37b8817c608c4e959d69986ef459d345cd upstream.

For RX TLS device-offloaded packets, the HW spec guarantees checksum
validation for the offloaded packets, but does not define whether the
CQE.checksum field matches the original packet (ciphertext) or
the decrypted one (plaintext). This latitude allows architetctural
improvements between generations of chips, resulting in different decisions
regarding the value type of CQE.checksum.

Hence, for these packets, the device driver should not make use of this CQE
field. Here we block CHECKSUM_COMPLETE usage for RX TLS device-offloaded
packets, and use CHECKSUM_UNNECESSARY instead.

Value of the packet's tcp_hdr.csum is not modified by the HW, and it always
matches the original ciphertext.

Fixes: 1182f3659357 ("net/mlx5e: kTLS, Add kTLS RX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index d384403d73f69..b8637547800f9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -985,7 +985,8 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 	}
 
 	/* True when explicitly set via priv flag, or XDP prog is loaded */
-	if (test_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &rq->state))
+	if (test_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &rq->state) ||
+	    get_cqe_tls_offload(cqe))
 		goto csum_unnecessary;
 
 	/* CQE csum doesn't cover padding octets in short ethernet
-- 
GitLab


From 2efece1368aeee2d2552c7ec36aeb676c4d4c95f Mon Sep 17 00:00:00 2001
From: Zhou Qingyang <zhou1615@umn.edu>
Date: Wed, 1 Dec 2021 01:22:53 +0800
Subject: [PATCH 4192/4878] spi: spi-zynq-qspi: Fix a NULL pointer dereference
 in zynq_qspi_exec_mem_op()

[ Upstream commit ab3824427b848da10e9fe2727f035bbeecae6ff4 ]

In zynq_qspi_exec_mem_op(), kzalloc() is directly used in memset(),
which could lead to a NULL pointer dereference on failure of
kzalloc().

Fix this bug by adding a check of tmpbuf.

This bug was found by a static analyzer. The analysis employs
differential checking to identify inconsistent security operations
(e.g., checks or kfrees) between two code paths and confirms that the
inconsistent operations are not recovered in the current function or
the callers, so they constitute bugs.

Note that, as a bug found by static analysis, it can be a false
positive or hard to trigger. Multiple researchers have cross-reviewed
the bug.

Builds with CONFIG_SPI_ZYNQ_QSPI=m show no new warnings,
and our static analyzer no longer warns about this code.

Fixes: 67dca5e580f1 ("spi: spi-mem: Add support for Zynq QSPI controller")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Link: https://lore.kernel.org/r/20211130172253.203700-1-zhou1615@umn.edu
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-zynq-qspi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c
index b635835729d66..13c0b15fe1764 100644
--- a/drivers/spi/spi-zynq-qspi.c
+++ b/drivers/spi/spi-zynq-qspi.c
@@ -570,6 +570,9 @@ static int zynq_qspi_exec_mem_op(struct spi_mem *mem,
 
 	if (op->dummy.nbytes) {
 		tmpbuf = kzalloc(op->dummy.nbytes, GFP_KERNEL);
+		if (!tmpbuf)
+			return -ENOMEM;
+
 		memset(tmpbuf, 0xff, op->dummy.nbytes);
 		reinit_completion(&xqspi->data_completion);
 		xqspi->txbuf = tmpbuf;
-- 
GitLab


From dc64aa4c7dc0cea2088facb6009c0811812121de Mon Sep 17 00:00:00 2001
From: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Date: Thu, 17 Feb 2022 14:20:07 +0530
Subject: [PATCH 4193/4878] regmap-irq: Update interrupt clear register for
 proper reset
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit d04ad245d67a3991dfea5e108e4c452c2ab39bac ]

With the existing logic where clear_ack is true (HW doesn’t support
auto clear for ICR), interrupt clear register reset is not handled
properly. Due to this only the first interrupts get processed properly
and further interrupts are blocked due to not resetting interrupt
clear register.

Example for issue case where Invert_ack is false and clear_ack is true:

    Say Default ISR=0x00 & ICR=0x00 and ISR is triggered with 2
    interrupts making ISR = 0x11.

    Step 1: Say ISR is set 0x11 (store status_buff = ISR). ISR needs to
            be cleared with the help of ICR once the Interrupt is processed.

    Step 2: Write ICR = 0x11 (status_buff), this will clear the ISR to 0x00.

    Step 3: Issue - In the existing code, ICR is written with ICR =
            ~(status_buff) i.e ICR = 0xEE -> This will block all the interrupts
            from raising except for interrupts 0 and 4. So expectation here is to
            reset ICR, which will unblock all the interrupts.

            if (chip->clear_ack) {
                 if (chip->ack_invert && !ret)
                  ........
                 else if (!ret)
                     ret = regmap_write(map, reg,
                            ~data->status_buf[i]);

So writing 0 and 0xff (when ack_invert is true) should have no effect, other
than clearing the ACKs just set.

Fixes: 3a6f0fb7b8eb ("regmap: irq: Add support to clear ack registers")
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20220217085007.30218-1-quic_pkumpatl@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/regmap/regmap-irq.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index ad5c2de395d1f..87c5c421e0f46 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -170,11 +170,9 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
 				ret = regmap_write(map, reg, d->mask_buf[i]);
 			if (d->chip->clear_ack) {
 				if (d->chip->ack_invert && !ret)
-					ret = regmap_write(map, reg,
-							   d->mask_buf[i]);
+					ret = regmap_write(map, reg, UINT_MAX);
 				else if (!ret)
-					ret = regmap_write(map, reg,
-							   ~d->mask_buf[i]);
+					ret = regmap_write(map, reg, 0);
 			}
 			if (ret != 0)
 				dev_err(d->map->dev, "Failed to ack 0x%x: %d\n",
@@ -509,11 +507,9 @@ static irqreturn_t regmap_irq_thread(int irq, void *d)
 						data->status_buf[i]);
 			if (chip->clear_ack) {
 				if (chip->ack_invert && !ret)
-					ret = regmap_write(map, reg,
-							data->status_buf[i]);
+					ret = regmap_write(map, reg, UINT_MAX);
 				else if (!ret)
-					ret = regmap_write(map, reg,
-							~data->status_buf[i]);
+					ret = regmap_write(map, reg, 0);
 			}
 			if (ret != 0)
 				dev_err(map->dev, "Failed to ack 0x%x: %d\n",
@@ -745,13 +741,9 @@ int regmap_add_irq_chip_fwnode(struct fwnode_handle *fwnode,
 					d->status_buf[i] & d->mask_buf[i]);
 			if (chip->clear_ack) {
 				if (chip->ack_invert && !ret)
-					ret = regmap_write(map, reg,
-						(d->status_buf[i] &
-						 d->mask_buf[i]));
+					ret = regmap_write(map, reg, UINT_MAX);
 				else if (!ret)
-					ret = regmap_write(map, reg,
-						~(d->status_buf[i] &
-						  d->mask_buf[i]));
+					ret = regmap_write(map, reg, 0);
 			}
 			if (ret != 0) {
 				dev_err(map->dev, "Failed to ack 0x%x: %d\n",
-- 
GitLab


From 8260f1800f83e667f26c80baa7f0b9d92ae271d7 Mon Sep 17 00:00:00 2001
From: Md Haris Iqbal <haris.iqbal@ionos.com>
Date: Thu, 17 Feb 2022 04:09:28 +0100
Subject: [PATCH 4194/4878] RDMA/rtrs-clt: Fix possible double free in error
 case

[ Upstream commit 8700af2cc18c919b2a83e74e0479038fd113c15d ]

Callback function rtrs_clt_dev_release() for put_device() calls kfree(clt)
to free memory. We shouldn't call kfree(clt) again, and we can't use the
clt after kfree too.

Replace device_register() with device_initialize() and device_add() so that
dev_set_name can() be used appropriately.

Move mutex_destroy() to the release function so it can be called in
the alloc_clt err path.

Fixes: eab098246625 ("RDMA/rtrs-clt: Refactor the failure cases in alloc_clt")
Link: https://lore.kernel.org/r/20220217030929.323849-1-haris.iqbal@ionos.com
Reported-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 37 ++++++++++++++------------
 1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 46fad202a380e..8937530a42d3d 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -2540,6 +2540,8 @@ static void rtrs_clt_dev_release(struct device *dev)
 {
 	struct rtrs_clt *clt = container_of(dev, struct rtrs_clt, dev);
 
+	mutex_destroy(&clt->paths_ev_mutex);
+	mutex_destroy(&clt->paths_mutex);
 	kfree(clt);
 }
 
@@ -2571,6 +2573,8 @@ static struct rtrs_clt *alloc_clt(const char *sessname, size_t paths_num,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	clt->dev.class = rtrs_clt_dev_class;
+	clt->dev.release = rtrs_clt_dev_release;
 	uuid_gen(&clt->paths_uuid);
 	INIT_LIST_HEAD_RCU(&clt->paths_list);
 	clt->paths_num = paths_num;
@@ -2588,43 +2592,41 @@ static struct rtrs_clt *alloc_clt(const char *sessname, size_t paths_num,
 	init_waitqueue_head(&clt->permits_wait);
 	mutex_init(&clt->paths_ev_mutex);
 	mutex_init(&clt->paths_mutex);
+	device_initialize(&clt->dev);
 
-	clt->dev.class = rtrs_clt_dev_class;
-	clt->dev.release = rtrs_clt_dev_release;
 	err = dev_set_name(&clt->dev, "%s", sessname);
 	if (err)
-		goto err;
+		goto err_put;
+
 	/*
 	 * Suppress user space notification until
 	 * sysfs files are created
 	 */
 	dev_set_uevent_suppress(&clt->dev, true);
-	err = device_register(&clt->dev);
-	if (err) {
-		put_device(&clt->dev);
-		goto err;
-	}
+	err = device_add(&clt->dev);
+	if (err)
+		goto err_put;
 
 	clt->kobj_paths = kobject_create_and_add("paths", &clt->dev.kobj);
 	if (!clt->kobj_paths) {
 		err = -ENOMEM;
-		goto err_dev;
+		goto err_del;
 	}
 	err = rtrs_clt_create_sysfs_root_files(clt);
 	if (err) {
 		kobject_del(clt->kobj_paths);
 		kobject_put(clt->kobj_paths);
-		goto err_dev;
+		goto err_del;
 	}
 	dev_set_uevent_suppress(&clt->dev, false);
 	kobject_uevent(&clt->dev.kobj, KOBJ_ADD);
 
 	return clt;
-err_dev:
-	device_unregister(&clt->dev);
-err:
+err_del:
+	device_del(&clt->dev);
+err_put:
 	free_percpu(clt->pcpu_path);
-	kfree(clt);
+	put_device(&clt->dev);
 	return ERR_PTR(err);
 }
 
@@ -2643,9 +2645,10 @@ static void free_clt(struct rtrs_clt *clt)
 	wait_for_inflight_permits(clt);
 	free_permits(clt);
 	free_percpu(clt->pcpu_path);
-	mutex_destroy(&clt->paths_ev_mutex);
-	mutex_destroy(&clt->paths_mutex);
-	/* release callback will free clt in last put */
+
+	/*
+	 * release callback will free clt and destroy mutexes in last put
+	 */
 	device_unregister(&clt->dev);
 }
 
-- 
GitLab


From b0ecf9e5941432aace7ca4d4850ead4acb462d45 Mon Sep 17 00:00:00 2001
From: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Date: Thu, 17 Dec 2020 15:19:05 +0100
Subject: [PATCH 4195/4878] RDMA/rtrs-clt: Kill wait_for_inflight_permits

[ Upstream commit 25a033f5a75873cfdd36eca3c702363b682afb42 ]

Let's wait the inflight permits before free it.

Link: https://lore.kernel.org/r/20201217141915.56989-10-jinpu.wang@cloud.ionos.com
Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Reviewed-by: Md Haris Iqbal <haris.iqbal@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 8937530a42d3d..5a3c11b0b3102 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -1328,6 +1328,12 @@ out_err:
 
 static void free_permits(struct rtrs_clt *clt)
 {
+	if (clt->permits_map) {
+		size_t sz = clt->queue_depth;
+
+		wait_event(clt->permits_wait,
+			   find_first_bit(clt->permits_map, sz) >= sz);
+	}
 	kfree(clt->permits_map);
 	clt->permits_map = NULL;
 	kfree(clt->permits);
@@ -2630,19 +2636,8 @@ err_put:
 	return ERR_PTR(err);
 }
 
-static void wait_for_inflight_permits(struct rtrs_clt *clt)
-{
-	if (clt->permits_map) {
-		size_t sz = clt->queue_depth;
-
-		wait_event(clt->permits_wait,
-			   find_first_bit(clt->permits_map, sz) >= sz);
-	}
-}
-
 static void free_clt(struct rtrs_clt *clt)
 {
-	wait_for_inflight_permits(clt);
 	free_permits(clt);
 	free_percpu(clt->pcpu_path);
 
-- 
GitLab


From 0ecd3e35d78ee083d9663c85669272a8eecd6c95 Mon Sep 17 00:00:00 2001
From: Md Haris Iqbal <haris.iqbal@ionos.com>
Date: Thu, 17 Feb 2022 04:09:29 +0100
Subject: [PATCH 4196/4878] RDMA/rtrs-clt: Move free_permit from free_clt to
 rtrs_clt_close

[ Upstream commit c46fa8911b17e3f808679061a8af8bee219f4602 ]

Error path of rtrs_clt_open() calls free_clt(), where free_permit is
called.  This is wrong since error path of rtrs_clt_open() does not need
to call free_permit().

Also, moving free_permits() call to rtrs_clt_close(), makes it more
aligned with the call to alloc_permit() in rtrs_clt_open().

Fixes: 6a98d71daea1 ("RDMA/rtrs: client: main functionality")
Link: https://lore.kernel.org/r/20220217030929.323849-2-haris.iqbal@ionos.com
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
index 5a3c11b0b3102..13634eda833de 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
@@ -2638,7 +2638,6 @@ err_put:
 
 static void free_clt(struct rtrs_clt *clt)
 {
-	free_permits(clt);
 	free_percpu(clt->pcpu_path);
 
 	/*
@@ -2759,6 +2758,7 @@ void rtrs_clt_close(struct rtrs_clt *clt)
 		rtrs_clt_destroy_sess_files(sess, NULL);
 		kobject_put(&sess->kobj);
 	}
+	free_permits(clt);
 	free_clt(clt);
 }
 EXPORT_SYMBOL(rtrs_clt_close);
-- 
GitLab


From a7ab53d3c27dfe83bb594456b9f38a37796ec39b Mon Sep 17 00:00:00 2001
From: ChenXiaoSong <chenxiaosong2@huawei.com>
Date: Tue, 15 Feb 2022 15:10:30 +0800
Subject: [PATCH 4197/4878] configfs: fix a race in
 configfs_{,un}register_subsystem()

[ Upstream commit 84ec758fb2daa236026506868c8796b0500c047d ]

When configfs_register_subsystem() or configfs_unregister_subsystem()
is executing link_group() or unlink_group(),
it is possible that two processes add or delete list concurrently.
Some unfortunate interleavings of them can cause kernel panic.

One of cases is:
A --> B --> C --> D
A <-- B <-- C <-- D

     delete list_head *B        |      delete list_head *C
--------------------------------|-----------------------------------
configfs_unregister_subsystem   |   configfs_unregister_subsystem
  unlink_group                  |     unlink_group
    unlink_obj                  |       unlink_obj
      list_del_init             |         list_del_init
        __list_del_entry        |           __list_del_entry
          __list_del            |             __list_del
            // next == C        |
            next->prev = prev   |
                                |               next->prev = prev
            prev->next = next   |
                                |                 // prev == B
                                |                 prev->next = next

Fix this by adding mutex when calling link_group() or unlink_group(),
but parent configfs_subsystem is NULL when config_item is root.
So I create a mutex configfs_subsystem_mutex.

Fixes: 7063fbf22611 ("[PATCH] configfs: User-driven configuration filesystem")
Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Signed-off-by: Laibin Qiu <qiulaibin@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/configfs/dir.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 32ddad3ec5d53..5ad27e484014f 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -36,6 +36,14 @@
  */
 DEFINE_SPINLOCK(configfs_dirent_lock);
 
+/*
+ * All of link_obj/unlink_obj/link_group/unlink_group require that
+ * subsys->su_mutex is held.
+ * But parent configfs_subsystem is NULL when config_item is root.
+ * Use this mutex when config_item is root.
+ */
+static DEFINE_MUTEX(configfs_subsystem_mutex);
+
 static void configfs_d_iput(struct dentry * dentry,
 			    struct inode * inode)
 {
@@ -1884,7 +1892,9 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
 		group->cg_item.ci_name = group->cg_item.ci_namebuf;
 
 	sd = root->d_fsdata;
+	mutex_lock(&configfs_subsystem_mutex);
 	link_group(to_config_group(sd->s_element), group);
+	mutex_unlock(&configfs_subsystem_mutex);
 
 	inode_lock_nested(d_inode(root), I_MUTEX_PARENT);
 
@@ -1909,7 +1919,9 @@ int configfs_register_subsystem(struct configfs_subsystem *subsys)
 	inode_unlock(d_inode(root));
 
 	if (err) {
+		mutex_lock(&configfs_subsystem_mutex);
 		unlink_group(group);
+		mutex_unlock(&configfs_subsystem_mutex);
 		configfs_release_fs();
 	}
 	put_fragment(frag);
@@ -1956,7 +1968,9 @@ void configfs_unregister_subsystem(struct configfs_subsystem *subsys)
 
 	dput(dentry);
 
+	mutex_lock(&configfs_subsystem_mutex);
 	unlink_group(group);
+	mutex_unlock(&configfs_subsystem_mutex);
 	configfs_release_fs();
 }
 
-- 
GitLab


From 99eb8d694174c777558dc902d575d1997d5ca650 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Tue, 15 Feb 2022 13:05:11 -0800
Subject: [PATCH 4198/4878] RDMA/ib_srp: Fix a deadlock

[ Upstream commit 081bdc9fe05bb23248f5effb6f811da3da4b8252 ]

Remove the flush_workqueue(system_long_wq) call since flushing
system_long_wq is deadlock-prone and since that call is redundant with a
preceding cancel_work_sync()

Link: https://lore.kernel.org/r/20220215210511.28303-3-bvanassche@acm.org
Fixes: ef6c49d87c34 ("IB/srp: Eliminate state SRP_TARGET_DEAD")
Reported-by: syzbot+831661966588c802aae9@syzkaller.appspotmail.com
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 86d5c4c92b363..b4ccb333a8342 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -4045,9 +4045,11 @@ static void srp_remove_one(struct ib_device *device, void *client_data)
 		spin_unlock(&host->target_lock);
 
 		/*
-		 * Wait for tl_err and target port removal tasks.
+		 * srp_queue_remove_work() queues a call to
+		 * srp_remove_target(). The latter function cancels
+		 * target->tl_err_work so waiting for the remove works to
+		 * finish is sufficient.
 		 */
-		flush_workqueue(system_long_wq);
 		flush_workqueue(srp_remove_wq);
 
 		kfree(host);
-- 
GitLab


From afbeee13beb5f0e7b88b7ca80278dec6f5eea584 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>
Date: Wed, 23 Feb 2022 22:38:37 -0500
Subject: [PATCH 4199/4878] tracing: Have traceon and traceoff trigger honor
 the instance

commit 302e9edd54985f584cfc180098f3554774126969 upstream.

If a trigger is set on an event to disable or enable tracing within an
instance, then tracing should be disabled or enabled in the instance and
not at the top level, which is confusing to users.

Link: https://lkml.kernel.org/r/20220223223837.14f94ec3@rorschach.local.home

Cc: stable@vger.kernel.org
Fixes: ae63b31e4d0e2 ("tracing: Separate out trace events from global variables")
Tested-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Reviewed-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events_trigger.c | 52 +++++++++++++++++++++++++----
 1 file changed, 46 insertions(+), 6 deletions(-)

diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
index f725802160c0b..d0309de2f84fe 100644
--- a/kernel/trace/trace_events_trigger.c
+++ b/kernel/trace/trace_events_trigger.c
@@ -940,6 +940,16 @@ static void
 traceon_trigger(struct event_trigger_data *data, void *rec,
 		struct ring_buffer_event *event)
 {
+	struct trace_event_file *file = data->private_data;
+
+	if (file) {
+		if (tracer_tracing_is_on(file->tr))
+			return;
+
+		tracer_tracing_on(file->tr);
+		return;
+	}
+
 	if (tracing_is_on())
 		return;
 
@@ -950,8 +960,15 @@ static void
 traceon_count_trigger(struct event_trigger_data *data, void *rec,
 		      struct ring_buffer_event *event)
 {
-	if (tracing_is_on())
-		return;
+	struct trace_event_file *file = data->private_data;
+
+	if (file) {
+		if (tracer_tracing_is_on(file->tr))
+			return;
+	} else {
+		if (tracing_is_on())
+			return;
+	}
 
 	if (!data->count)
 		return;
@@ -959,13 +976,26 @@ traceon_count_trigger(struct event_trigger_data *data, void *rec,
 	if (data->count != -1)
 		(data->count)--;
 
-	tracing_on();
+	if (file)
+		tracer_tracing_on(file->tr);
+	else
+		tracing_on();
 }
 
 static void
 traceoff_trigger(struct event_trigger_data *data, void *rec,
 		 struct ring_buffer_event *event)
 {
+	struct trace_event_file *file = data->private_data;
+
+	if (file) {
+		if (!tracer_tracing_is_on(file->tr))
+			return;
+
+		tracer_tracing_off(file->tr);
+		return;
+	}
+
 	if (!tracing_is_on())
 		return;
 
@@ -976,8 +1006,15 @@ static void
 traceoff_count_trigger(struct event_trigger_data *data, void *rec,
 		       struct ring_buffer_event *event)
 {
-	if (!tracing_is_on())
-		return;
+	struct trace_event_file *file = data->private_data;
+
+	if (file) {
+		if (!tracer_tracing_is_on(file->tr))
+			return;
+	} else {
+		if (!tracing_is_on())
+			return;
+	}
 
 	if (!data->count)
 		return;
@@ -985,7 +1022,10 @@ traceoff_count_trigger(struct event_trigger_data *data, void *rec,
 	if (data->count != -1)
 		(data->count)--;
 
-	tracing_off();
+	if (file)
+		tracer_tracing_off(file->tr);
+	else
+		tracing_off();
 }
 
 static int
-- 
GitLab


From 1aa12ecfdcbafebc218910ec47acf6262e600cf5 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sat, 29 Jan 2022 09:32:47 +0100
Subject: [PATCH 4200/4878] iio: adc: men_z188_adc: Fix a resource leak in an
 error handling path

commit e0a2e37f303828d030a83f33ffe14b36cb88d563 upstream.

If iio_device_register() fails, a previous ioremap() is left unbalanced.

Update the error handling path and add the missing iounmap() call, as
already done in the remove function.

Fixes: 74aeac4da66f ("iio: adc: Add MEN 16z188 ADC driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/320fc777863880247c2aff4a9d1a54ba69abf080.1643445149.git.christophe.jaillet@wanadoo.fr
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/men_z188_adc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/men_z188_adc.c b/drivers/iio/adc/men_z188_adc.c
index 42ea8bc7e7805..adc5ceaef8c93 100644
--- a/drivers/iio/adc/men_z188_adc.c
+++ b/drivers/iio/adc/men_z188_adc.c
@@ -103,6 +103,7 @@ static int men_z188_probe(struct mcb_device *dev,
 	struct z188_adc *adc;
 	struct iio_dev *indio_dev;
 	struct resource *mem;
+	int ret;
 
 	indio_dev = devm_iio_device_alloc(&dev->dev, sizeof(struct z188_adc));
 	if (!indio_dev)
@@ -128,8 +129,14 @@ static int men_z188_probe(struct mcb_device *dev,
 	adc->mem = mem;
 	mcb_set_drvdata(dev, indio_dev);
 
-	return iio_device_register(indio_dev);
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err_unmap;
+
+	return 0;
 
+err_unmap:
+	iounmap(adc->base);
 err:
 	mcb_release_mem(mem);
 	return -ENXIO;
-- 
GitLab


From b8d411a96227cf182061c4761d77c96615b515c7 Mon Sep 17 00:00:00 2001
From: Cosmin Tanislav <demonsingur@gmail.com>
Date: Wed, 12 Jan 2022 22:00:36 +0200
Subject: [PATCH 4201/4878] iio: adc: ad7124: fix mask used for setting
 AIN_BUFP & AIN_BUFM bits

commit 0e33d15f1dce9e3a80a970ea7f0b27837168aeca upstream.

According to page 90 of the datasheet [1], AIN_BUFP is bit 6 and
AIN_BUFM is bit 5 of the CONFIG_0 -> CONFIG_7 registers.

Fix the mask used for setting these bits.

[1]: https://www.analog.com/media/en/technical-documentation/data-sheets/ad7124-8.pdf

Fixes: 0eaecea6e487 ("iio: adc: ad7124: Add buffered input support")
Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com>
Link: https://lore.kernel.org/r/20220112200036.694490-1-cosmin.tanislav@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/adc/ad7124.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7124.c b/drivers/iio/adc/ad7124.c
index 9c2401c5848ec..bd35009950376 100644
--- a/drivers/iio/adc/ad7124.c
+++ b/drivers/iio/adc/ad7124.c
@@ -74,7 +74,7 @@
 #define AD7124_CONFIG_REF_SEL(x)	FIELD_PREP(AD7124_CONFIG_REF_SEL_MSK, x)
 #define AD7124_CONFIG_PGA_MSK		GENMASK(2, 0)
 #define AD7124_CONFIG_PGA(x)		FIELD_PREP(AD7124_CONFIG_PGA_MSK, x)
-#define AD7124_CONFIG_IN_BUFF_MSK	GENMASK(7, 6)
+#define AD7124_CONFIG_IN_BUFF_MSK	GENMASK(6, 5)
 #define AD7124_CONFIG_IN_BUFF(x)	FIELD_PREP(AD7124_CONFIG_IN_BUFF_MSK, x)
 
 /* AD7124_FILTER_X */
-- 
GitLab


From eabcc609cb8accf16a5c53fd9b91a827854b1ca9 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sat, 5 Feb 2022 22:57:42 +0100
Subject: [PATCH 4202/4878] iio: imu: st_lsm6dsx: wait for settling time in
 st_lsm6dsx_read_oneshot

commit ea85bf906466191b58532bb19f4fbb4591f0a77e upstream.

We need to wait for sensor settling time (~ 3/ODR) before reading data
in st_lsm6dsx_read_oneshot routine in order to avoid corrupted samples.

Fixes: 290a6ce11d93 ("iio: imu: add support to lsm6dsx driver")
Reported-by: Mario Tesi <mario.tesi@st.com>
Tested-by: Mario Tesi <mario.tesi@st.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/b41ebda5535895298716c76d939f9f165fcd2d13.1644098120.git.lorenzo@kernel.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 558ca3843bb95..2c528425b03b4 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -1558,8 +1558,12 @@ static int st_lsm6dsx_read_oneshot(struct st_lsm6dsx_sensor *sensor,
 	if (err < 0)
 		return err;
 
+	/*
+	 * we need to wait for sensor settling time before
+	 * reading data in order to avoid corrupted samples
+	 */
 	delay = 1000000000 / sensor->odr;
-	usleep_range(delay, 2 * delay);
+	usleep_range(3 * delay, 4 * delay);
 
 	err = st_lsm6dsx_read_locked(hw, addr, &data, sizeof(data));
 	if (err < 0)
-- 
GitLab


From d5ddd7343adf7bfbe8b702eddb112446f2b0ad8c Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 6 Jan 2022 11:23:09 +0000
Subject: [PATCH 4203/4878] iio: Fix error handling for PM

commit 632fe0bb8c5b9c06ec961f575ee42a6fff5eceeb upstream.

The pm_runtime_enable will increase power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable(). In the PM Runtime docs:
    Drivers in ->remove() callback should undo the runtime PM changes done
    in ->probe(). Usually this means calling pm_runtime_disable(),
    pm_runtime_dont_use_autosuspend() etc.
We should do this in error handling.

Fix this problem for the following drivers: bmc150, bmg160, kmx61,
kxcj-1013, mma9551, mma9553.

Fixes: 7d0ead5c3f00 ("iio: Reconcile operation order between iio_register/unregister and pm functions")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220106112309.16879-1-linmq006@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/accel/bmc150-accel-core.c  | 5 ++++-
 drivers/iio/accel/kxcjk-1013.c         | 5 ++++-
 drivers/iio/accel/mma9551.c            | 5 ++++-
 drivers/iio/accel/mma9553.c            | 5 ++++-
 drivers/iio/gyro/bmg160_core.c         | 5 ++++-
 drivers/iio/imu/kmx61.c                | 5 ++++-
 drivers/iio/magnetometer/bmc150_magn.c | 5 +++--
 7 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 48435865fdaf3..792526462f1c9 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1648,11 +1648,14 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(dev, "Unable to register iio device\n");
-		goto err_trigger_unregister;
+		goto err_pm_cleanup;
 	}
 
 	return 0;
 
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(dev);
+	pm_runtime_disable(dev);
 err_trigger_unregister:
 	bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
 err_buffer_cleanup:
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 2eaf85b6e39f4..89e0a89d95d6b 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1429,11 +1429,14 @@ static int kxcjk1013_probe(struct i2c_client *client,
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(&client->dev, "unable to register iio device\n");
-		goto err_buffer_cleanup;
+		goto err_pm_cleanup;
 	}
 
 	return 0;
 
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(&client->dev);
+	pm_runtime_disable(&client->dev);
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 08a2303cc9df3..26421e8e82639 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -495,11 +495,14 @@ static int mma9551_probe(struct i2c_client *client,
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(&client->dev, "unable to register iio device\n");
-		goto out_poweroff;
+		goto err_pm_cleanup;
 	}
 
 	return 0;
 
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(&client->dev);
+	pm_runtime_disable(&client->dev);
 out_poweroff:
 	mma9551_set_device_state(client, false);
 
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index c15908faa3816..a23a7685d1f93 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1134,12 +1134,15 @@ static int mma9553_probe(struct i2c_client *client,
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(&client->dev, "unable to register iio device\n");
-		goto out_poweroff;
+		goto err_pm_cleanup;
 	}
 
 	dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
 	return 0;
 
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(&client->dev);
+	pm_runtime_disable(&client->dev);
 out_poweroff:
 	mma9551_set_device_state(client, false);
 	return ret;
diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 39fe0b1785920..b6b90eebec0b9 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -1170,11 +1170,14 @@ int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq,
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(dev, "unable to register iio device\n");
-		goto err_buffer_cleanup;
+		goto err_pm_cleanup;
 	}
 
 	return 0;
 
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(dev);
+	pm_runtime_disable(dev);
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 err_trigger_unregister:
diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
index 61885e99d3fc1..89133315e6aaf 100644
--- a/drivers/iio/imu/kmx61.c
+++ b/drivers/iio/imu/kmx61.c
@@ -1392,7 +1392,7 @@ static int kmx61_probe(struct i2c_client *client,
 	ret = iio_device_register(data->acc_indio_dev);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to register acc iio device\n");
-		goto err_buffer_cleanup_mag;
+		goto err_pm_cleanup;
 	}
 
 	ret = iio_device_register(data->mag_indio_dev);
@@ -1405,6 +1405,9 @@ static int kmx61_probe(struct i2c_client *client,
 
 err_iio_unregister_acc:
 	iio_device_unregister(data->acc_indio_dev);
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(&client->dev);
+	pm_runtime_disable(&client->dev);
 err_buffer_cleanup_mag:
 	if (client->irq > 0)
 		iio_triggered_buffer_cleanup(data->mag_indio_dev);
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index 8eacfaf584cfd..620537d0104d4 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -941,13 +941,14 @@ int bmc150_magn_probe(struct device *dev, struct regmap *regmap,
 	ret = iio_device_register(indio_dev);
 	if (ret < 0) {
 		dev_err(dev, "unable to register iio device\n");
-		goto err_disable_runtime_pm;
+		goto err_pm_cleanup;
 	}
 
 	dev_dbg(dev, "Registered device %s\n", name);
 	return 0;
 
-err_disable_runtime_pm:
+err_pm_cleanup:
+	pm_runtime_dont_use_autosuspend(dev);
 	pm_runtime_disable(dev);
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
-- 
GitLab


From 18701d8afaa1c609b3cbf7c63ef5423ab2c8d252 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Wed, 16 Feb 2022 16:08:02 +0000
Subject: [PATCH 4204/4878] sc16is7xx: Fix for incorrect data being transmitted

commit eebb0f4e894f1e9577a56b337693d1051dd6ebfd upstream.

UART drivers are meant to use the port spinlock within certain
methods, to protect against reentrancy. The sc16is7xx driver does
very little locking, presumably because when added it triggers
"scheduling while atomic" errors. This is due to the use of mutexes
within the regmap abstraction layer, and the mutex implementation's
habit of sleeping the current thread while waiting for access.
Unfortunately this lack of interlocking can lead to corruption of
outbound data, which occurs when the buffer used for I2C transmission
is used simultaneously by two threads - a work queue thread running
sc16is7xx_tx_proc, and an IRQ thread in sc16is7xx_port_irq, both
of which can call sc16is7xx_handle_tx.

An earlier patch added efr_lock, a mutex that controls access to the
EFR register. This mutex is already claimed in the IRQ handler, and
all that is required is to claim the same mutex in sc16is7xx_tx_proc.

See: https://github.com/raspberrypi/linux/issues/4885

Fixes: 6393ff1c4435 ("sc16is7xx: Use threaded IRQ")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Link: https://lore.kernel.org/r/20220216160802.1026013-1-phil@raspberrypi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/sc16is7xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 9adb8362578c5..04b4ed5d06341 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -734,12 +734,15 @@ static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
 static void sc16is7xx_tx_proc(struct kthread_work *ws)
 {
 	struct uart_port *port = &(to_sc16is7xx_one(ws, tx_work)->port);
+	struct sc16is7xx_port *s = dev_get_drvdata(port->dev);
 
 	if ((port->rs485.flags & SER_RS485_ENABLED) &&
 	    (port->rs485.delay_rts_before_send > 0))
 		msleep(port->rs485.delay_rts_before_send);
 
+	mutex_lock(&s->efr_lock);
 	sc16is7xx_handle_tx(port);
+	mutex_unlock(&s->efr_lock);
 }
 
 static void sc16is7xx_reconf_rs485(struct uart_port *port)
-- 
GitLab


From d3fce1b6bd95d6c90b92df41d72e3db6be63fbd5 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sat, 19 Feb 2022 20:44:43 +0300
Subject: [PATCH 4205/4878] ata: pata_hpt37x: disable primary channel on HPT371

commit 8d093e02e898b24c58788b0289e3202317a96d2a upstream.

The HPT371 chip physically has only one channel, the secondary one,
however the primary channel registers do exist! Thus we have to
manually disable the non-existing channel if the BIOS hasn't done this
already. Similarly to the pata_hpt3x2n driver, always disable the
primary channel.

Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Cc: stable@vger.kernel.org
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ata/pata_hpt37x.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index fad6c6a873130..499a947d56ddb 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -917,6 +917,20 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 	irqmask &= ~0x10;
 	pci_write_config_byte(dev, 0x5a, irqmask);
 
+	/*
+	 * HPT371 chips physically have only one channel, the secondary one,
+	 * but the primary channel registers do exist!  Go figure...
+	 * So,  we manually disable the non-existing channel here
+	 * (if the BIOS hasn't done this already).
+	 */
+	if (dev->device == PCI_DEVICE_ID_TTI_HPT371) {
+		u8 mcr1;
+
+		pci_read_config_byte(dev, 0x50, &mcr1);
+		mcr1 &= ~0x04;
+		pci_write_config_byte(dev, 0x50, mcr1);
+	}
+
 	/*
 	 * default to pci clock. make sure MA15/16 are set to output
 	 * to prevent drives having problems with 40-pin cables. Needed
-- 
GitLab


From ddc254fc8873b3517aeaa6859f78d7fb949866f4 Mon Sep 17 00:00:00 2001
From: Dmytro Bagrii <dimich.dmb@gmail.com>
Date: Thu, 10 Feb 2022 18:41:37 +0200
Subject: [PATCH 4206/4878] Revert "USB: serial: ch341: add new Product ID for
 CH341A"

commit 198a7ebd5fa17b4d0be8cb70240ee1be885175c0 upstream.

This reverts commit 46ee4abb10a07bd8f8ce910ee6b4ae6a947d7f63.

CH341 has Product ID 0x5512 in EPP/MEM mode which is used for
I2C/SPI/GPIO interfaces. In asynchronous serial interface mode
CH341 has PID 0x5523 which is already in the table.

Mode is selected by corresponding jumper setting.

Signed-off-by: Dmytro Bagrii <dimich.dmb@gmail.com>
Link: https://lore.kernel.org/r/20220210164137.4376-1-dimich.dmb@gmail.com
Link: https://lore.kernel.org/r/YJ0OCS/sh+1ifD/q@hovoldconsulting.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/ch341.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 8716ada0b1387..a2a38fc76ca53 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -81,7 +81,6 @@
 #define CH341_QUIRK_SIMULATE_BREAK	BIT(1)
 
 static const struct usb_device_id id_table[] = {
-	{ USB_DEVICE(0x1a86, 0x5512) },
 	{ USB_DEVICE(0x1a86, 0x5523) },
 	{ USB_DEVICE(0x1a86, 0x7522) },
 	{ USB_DEVICE(0x1a86, 0x7523) },
-- 
GitLab


From 4ce247af3f30078d5b97554f1ae6200a0222c15a Mon Sep 17 00:00:00 2001
From: Daehwan Jung <dh10.jung@samsung.com>
Date: Tue, 22 Feb 2022 14:29:28 +0900
Subject: [PATCH 4207/4878] usb: gadget: rndis: add spinlock for rndis response
 list

commit aaaba1c86d04dac8e49bf508b492f81506257da3 upstream.

There's no lock for rndis response list. It could cause list corruption
if there're two different list_add at the same time like below.
It's better to add in rndis_add_response / rndis_free_response
/ rndis_get_next_response to prevent any race condition on response list.

[  361.894299] [1:   irq/191-dwc3:16979] list_add corruption.
next->prev should be prev (ffffff80651764d0),
but was ffffff883dc36f80. (next=ffffff80651764d0).

[  361.904380] [1:   irq/191-dwc3:16979] Call trace:
[  361.904391] [1:   irq/191-dwc3:16979]  __list_add_valid+0x74/0x90
[  361.904401] [1:   irq/191-dwc3:16979]  rndis_msg_parser+0x168/0x8c0
[  361.904409] [1:   irq/191-dwc3:16979]  rndis_command_complete+0x24/0x84
[  361.904417] [1:   irq/191-dwc3:16979]  usb_gadget_giveback_request+0x20/0xe4
[  361.904426] [1:   irq/191-dwc3:16979]  dwc3_gadget_giveback+0x44/0x60
[  361.904434] [1:   irq/191-dwc3:16979]  dwc3_ep0_complete_data+0x1e8/0x3a0
[  361.904442] [1:   irq/191-dwc3:16979]  dwc3_ep0_interrupt+0x29c/0x3dc
[  361.904450] [1:   irq/191-dwc3:16979]  dwc3_process_event_entry+0x78/0x6cc
[  361.904457] [1:   irq/191-dwc3:16979]  dwc3_process_event_buf+0xa0/0x1ec
[  361.904465] [1:   irq/191-dwc3:16979]  dwc3_thread_interrupt+0x34/0x5c

Fixes: f6281af9d62e ("usb: gadget: rndis: use list_for_each_entry_safe")
Cc: stable <stable@kernel.org>
Signed-off-by: Daehwan Jung <dh10.jung@samsung.com>
Link: https://lore.kernel.org/r/1645507768-77687-1-git-send-email-dh10.jung@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/function/rndis.c | 8 ++++++++
 drivers/usb/gadget/function/rndis.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c
index d9ed651f06ac3..0f14c5291af07 100644
--- a/drivers/usb/gadget/function/rndis.c
+++ b/drivers/usb/gadget/function/rndis.c
@@ -922,6 +922,7 @@ struct rndis_params *rndis_register(void (*resp_avail)(void *v), void *v)
 	params->resp_avail = resp_avail;
 	params->v = v;
 	INIT_LIST_HEAD(&params->resp_queue);
+	spin_lock_init(&params->resp_lock);
 	pr_debug("%s: configNr = %d\n", __func__, i);
 
 	return params;
@@ -1015,12 +1016,14 @@ void rndis_free_response(struct rndis_params *params, u8 *buf)
 {
 	rndis_resp_t *r, *n;
 
+	spin_lock(&params->resp_lock);
 	list_for_each_entry_safe(r, n, &params->resp_queue, list) {
 		if (r->buf == buf) {
 			list_del(&r->list);
 			kfree(r);
 		}
 	}
+	spin_unlock(&params->resp_lock);
 }
 EXPORT_SYMBOL_GPL(rndis_free_response);
 
@@ -1030,14 +1033,17 @@ u8 *rndis_get_next_response(struct rndis_params *params, u32 *length)
 
 	if (!length) return NULL;
 
+	spin_lock(&params->resp_lock);
 	list_for_each_entry_safe(r, n, &params->resp_queue, list) {
 		if (!r->send) {
 			r->send = 1;
 			*length = r->length;
+			spin_unlock(&params->resp_lock);
 			return r->buf;
 		}
 	}
 
+	spin_unlock(&params->resp_lock);
 	return NULL;
 }
 EXPORT_SYMBOL_GPL(rndis_get_next_response);
@@ -1054,7 +1060,9 @@ static rndis_resp_t *rndis_add_response(struct rndis_params *params, u32 length)
 	r->length = length;
 	r->send = 0;
 
+	spin_lock(&params->resp_lock);
 	list_add_tail(&r->list, &params->resp_queue);
+	spin_unlock(&params->resp_lock);
 	return r;
 }
 
diff --git a/drivers/usb/gadget/function/rndis.h b/drivers/usb/gadget/function/rndis.h
index f6167f7fea82b..6206b8b7490f6 100644
--- a/drivers/usb/gadget/function/rndis.h
+++ b/drivers/usb/gadget/function/rndis.h
@@ -174,6 +174,7 @@ typedef struct rndis_params {
 	void			(*resp_avail)(void *v);
 	void			*v;
 	struct list_head	resp_queue;
+	spinlock_t		resp_lock;
 } rndis_params;
 
 /* RNDIS Message parser and other useless functions */
-- 
GitLab


From bfa8ffbaaaaf9752f66bc7cabcef2de715e7621f Mon Sep 17 00:00:00 2001
From: Szymon Heidrich <szymon.heidrich@gmail.com>
Date: Mon, 21 Feb 2022 13:24:56 +0100
Subject: [PATCH 4208/4878] USB: gadget: validate endpoint index for xilinx udc

commit 7f14c7227f342d9932f9b918893c8814f86d2a0d upstream.

Assure that host may not manipulate the index to point
past endpoint array.

Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/udc/udc-xilinx.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index d5e9d20c097d2..096f56a09e6a2 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1612,6 +1612,8 @@ static void xudc_getstatus(struct xusb_udc *udc)
 		break;
 	case USB_RECIP_ENDPOINT:
 		epnum = udc->setup.wIndex & USB_ENDPOINT_NUMBER_MASK;
+		if (epnum >= XUSB_MAX_ENDPOINTS)
+			goto stall;
 		target_ep = &udc->ep[epnum];
 		epcfgreg = udc->read_fn(udc->addr + target_ep->offset);
 		halt = epcfgreg & XUSB_EP_CFG_STALL_MASK;
@@ -1679,6 +1681,10 @@ static void xudc_set_clear_feature(struct xusb_udc *udc)
 	case USB_RECIP_ENDPOINT:
 		if (!udc->setup.wValue) {
 			endpoint = udc->setup.wIndex & USB_ENDPOINT_NUMBER_MASK;
+			if (endpoint >= XUSB_MAX_ENDPOINTS) {
+				xudc_ep0_stall(udc);
+				return;
+			}
 			target_ep = &udc->ep[endpoint];
 			outinbit = udc->setup.wIndex & USB_ENDPOINT_DIR_MASK;
 			outinbit = outinbit >> 7;
-- 
GitLab


From 3a1dd56e566fa71419da2c145a6850e63f17fbf0 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>
Date: Fri, 25 Feb 2022 15:34:26 -0500
Subject: [PATCH 4209/4878] tracefs: Set the group ownership in apply_options()
 not parse_options()

commit 851e99ebeec3f4a672bb5010cf1ece095acee447 upstream.

Al Viro brought it to my attention that the dentries may not be filled
when the parse_options() is called, causing the call to set_gid() to
possibly crash. It should only be called if parse_options() succeeds
totally anyway.

He suggested the logical place to do the update is in apply_options().

Link: https://lore.kernel.org/all/20220225165219.737025658@goodmis.org/
Link: https://lkml.kernel.org/r/20220225153426.1c4cab6b@gandalf.local.home

Cc: stable@vger.kernel.org
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Fixes: 48b27b6b5191 ("tracefs: Set all files to the same group ownership as the mount option")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/tracefs/inode.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index ade05887070dd..8b7315c22f0d1 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -262,7 +262,6 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
 			if (!gid_valid(gid))
 				return -EINVAL;
 			opts->gid = gid;
-			set_gid(tracefs_mount->mnt_root, gid);
 			break;
 		case Opt_mode:
 			if (match_octal(&args[0], &option))
@@ -289,7 +288,9 @@ static int tracefs_apply_options(struct super_block *sb)
 	inode->i_mode |= opts->mode;
 
 	inode->i_uid = opts->uid;
-	inode->i_gid = opts->gid;
+
+	/* Set all the group ids to the mount option */
+	set_gid(sb->s_root, opts->gid);
 
 	return 0;
 }
-- 
GitLab


From 220ba174f192dee88cff9ba24b2de912225d4d5d Mon Sep 17 00:00:00 2001
From: Slark Xiao <slark_xiao@163.com>
Date: Mon, 14 Feb 2022 10:14:01 +0800
Subject: [PATCH 4210/4878] USB: serial: option: add support for DW5829e

commit 6ecb3f0b18b320320460a42e40d6fb603f6ded96 upstream.

Dell DW5829e same as DW5821e except CAT level.
DW5821e supports CAT16 but DW5829e supports CAT9.
There are 2 types product of DW5829e: normal and eSIM.
So we will add 2 PID for DW5829e.
And for each PID, it support MBIM or RMNET.
Let's see test evidence as below:

DW5829e MBIM mode:
T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  4 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  2
P:  Vendor=413c ProdID=81e6 Rev=03.18
S:  Manufacturer=Dell Inc.
S:  Product=DW5829e Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 7 Cfg#= 2 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#=0x6 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

DW5829e RMNET mode:
T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  5 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=413c ProdID=81e6 Rev=03.18
S:  Manufacturer=Dell Inc.
S:  Product=DW5829e Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option

DW5829e-eSIM MBIM mode:
T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  6 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  2
P:  Vendor=413c ProdID=81e4 Rev=03.18
S:  Manufacturer=Dell Inc.
S:  Product=DW5829e-eSIM Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 7 Cfg#= 2 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#=0x6 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

DW5829e-eSIM RMNET mode:
T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  7 Spd=5000 MxCh= 0
D:  Ver= 3.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=413c ProdID=81e4 Rev=03.18
S:  Manufacturer=Dell Inc.
S:  Product=DW5829e-eSIM Snapdragon X20 LTE
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option

BTW, the interface 0x6 of MBIM mode is GNSS port, which not same as NMEA
port. So it's banned from serial option driver.
The remaining interfaces 0x2-0x5 are: MODEM, MODEM, NMEA, DIAG.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Link: https://lore.kernel.org/r/20220214021401.6264-1-slark_xiao@163.com
[ johan: drop unnecessary reservation of interface 1 ]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c39c505b081b1..1202b1fc2a75a 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -198,6 +198,8 @@ static void option_instat_callback(struct urb *urb);
 
 #define DELL_PRODUCT_5821E			0x81d7
 #define DELL_PRODUCT_5821E_ESIM			0x81e0
+#define DELL_PRODUCT_5829E_ESIM			0x81e4
+#define DELL_PRODUCT_5829E			0x81e6
 
 #define KYOCERA_VENDOR_ID			0x0c88
 #define KYOCERA_PRODUCT_KPC650			0x17da
@@ -1063,6 +1065,10 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
 	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E_ESIM),
 	  .driver_info = RSVD(0) | RSVD(1) | RSVD(6) },
+	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5829E),
+	  .driver_info = RSVD(0) | RSVD(6) },
+	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5829E_ESIM),
+	  .driver_info = RSVD(0) | RSVD(6) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
-- 
GitLab


From c7866880377b73a809e6f08852b0b05452ab6296 Mon Sep 17 00:00:00 2001
From: Daniele Palmas <dnlplm@gmail.com>
Date: Fri, 18 Feb 2022 14:45:52 +0100
Subject: [PATCH 4211/4878] USB: serial: option: add Telit LE910R1 compositions

commit cfc4442c642d568014474b6718ccf65dc7ca6099 upstream.

Add support for the following Telit LE910R1 compositions:

0x701a: rndis, tty, tty, tty
0x701b: ecm, tty, tty, tty
0x9201: tty

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Link: https://lore.kernel.org/r/20220218134552.4051-1-dnlplm@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 1202b1fc2a75a..b878f4c87fee8 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1279,10 +1279,16 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(2) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x7011, 0xff),	/* Telit LE910-S1 (ECM) */
 	  .driver_info = NCTRL(2) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x701a, 0xff),	/* Telit LE910R1 (RNDIS) */
+	  .driver_info = NCTRL(2) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x701b, 0xff),	/* Telit LE910R1 (ECM) */
+	  .driver_info = NCTRL(2) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9010),				/* Telit SBL FN980 flashing device */
 	  .driver_info = NCTRL(0) | ZLP },
 	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9200),				/* Telit LE910S1 flashing device */
 	  .driver_info = NCTRL(0) | ZLP },
+	{ USB_DEVICE(TELIT_VENDOR_ID, 0x9201),				/* Telit LE910R1 flashing device */
+	  .driver_info = NCTRL(0) | ZLP },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
 	  .driver_info = RSVD(1) },
-- 
GitLab


From 99b2425d9178b0939ac000893c5d889d63f5234d Mon Sep 17 00:00:00 2001
From: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Date: Wed, 16 Feb 2022 09:12:15 +0100
Subject: [PATCH 4212/4878] usb: dwc2: drd: fix soft connect when gadget is
 unconfigured

commit 32fde84362c40961726a5c91f35ad37355ccc0c6 upstream.

When the gadget driver hasn't been (yet) configured, and the cable is
connected to a HOST, the SFTDISCON gets cleared unconditionally, so the
HOST tries to enumerate it.
At the host side, this can result in a stuck USB port or worse. When
getting lucky, some dmesg can be observed at the host side:
 new high-speed USB device number ...
 device descriptor read/64, error -110

Fix it in drd, by checking the enabled flag before calling
dwc2_hsotg_core_connect(). It will be called later, once configured,
by the normal flow:
- udc_bind_to_driver
 - usb_gadget_connect
   - dwc2_hsotg_pullup
     - dwc2_hsotg_core_connect

Fixes: 17f934024e84 ("usb: dwc2: override PHY input signals with usb role switch support")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/1644999135-13478-1-git-send-email-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc2/core.h | 2 ++
 drivers/usb/dwc2/drd.c  | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index 641e4251cb7f1..03d16a08261d8 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -1406,6 +1406,7 @@ void dwc2_hsotg_core_connect(struct dwc2_hsotg *hsotg);
 void dwc2_hsotg_disconnect(struct dwc2_hsotg *dwc2);
 int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode);
 #define dwc2_is_device_connected(hsotg) (hsotg->connected)
+#define dwc2_is_device_enabled(hsotg) (hsotg->enabled)
 int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg);
 int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup);
 int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg);
@@ -1434,6 +1435,7 @@ static inline int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg,
 					   int testmode)
 { return 0; }
 #define dwc2_is_device_connected(hsotg) (0)
+#define dwc2_is_device_enabled(hsotg) (0)
 static inline int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg)
 { return 0; }
 static inline int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg,
diff --git a/drivers/usb/dwc2/drd.c b/drivers/usb/dwc2/drd.c
index aa6eb76f64ddc..36f2c38416e5e 100644
--- a/drivers/usb/dwc2/drd.c
+++ b/drivers/usb/dwc2/drd.c
@@ -109,8 +109,10 @@ static int dwc2_drd_role_sw_set(struct usb_role_switch *sw, enum usb_role role)
 		already = dwc2_ovr_avalid(hsotg, true);
 	} else if (role == USB_ROLE_DEVICE) {
 		already = dwc2_ovr_bvalid(hsotg, true);
-		/* This clear DCTL.SFTDISCON bit */
-		dwc2_hsotg_core_connect(hsotg);
+		if (dwc2_is_device_enabled(hsotg)) {
+			/* This clear DCTL.SFTDISCON bit */
+			dwc2_hsotg_core_connect(hsotg);
+		}
 	} else {
 		if (dwc2_is_device_mode(hsotg)) {
 			if (!dwc2_ovr_bvalid(hsotg, false))
-- 
GitLab


From e57bdee8661e7233f18e9a37a5c926da19db5e7b Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 13 Feb 2022 14:05:17 +0100
Subject: [PATCH 4213/4878] usb: dwc3: pci: Fix Bay Trail phy GPIO mappings

commit 62e3f0afe246720f7646eb1b034a6897dac34405 upstream.

When the Bay Trail phy GPIO mappings where added cs and reset were swapped,
this did not cause any issues sofar, because sofar they were always driven
high/low at the same time.

Note the new mapping has been verified both in /sys/kernel/debug/gpio
output on Android factory images on multiple devices, as well as in
the schematics for some devices.

Fixes: 5741022cbdf3 ("usb: dwc3: pci: Add GPIO lookup table on platforms without ACPI GPIO resources")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220213130524.18748-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/dwc3-pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 17117870f6cea..98df8d52c765c 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -81,8 +81,8 @@ static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = {
 static struct gpiod_lookup_table platform_bytcr_gpios = {
 	.dev_id		= "0000:00:16.0",
 	.table		= {
-		GPIO_LOOKUP("INT33FC:00", 54, "reset", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("INT33FC:02", 14, "cs", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("INT33FC:00", 54, "cs", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("INT33FC:02", 14, "reset", GPIO_ACTIVE_HIGH),
 		{}
 	},
 };
-- 
GitLab


From 328faee6d4099de2e8d9dc18ded9ea31f62b5b5f Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri, 18 Feb 2022 18:32:45 +0100
Subject: [PATCH 4214/4878] usb: dwc3: gadget: Let the interrupt handler
 disable bottom halves.

commit 84918a89d6efaff075de570b55642b6f4ceeac6d upstream.

The interrupt service routine registered for the gadget is a primary
handler which mask the interrupt source and a threaded handler which
handles the source of the interrupt. Since the threaded handler is
voluntary threaded, the IRQ-core does not disable bottom halves before
invoke the handler like it does for the forced-threaded handler.

Due to changes in networking it became visible that a network gadget's
completions handler may schedule a softirq which remains unprocessed.
The gadget's completion handler is usually invoked either in hard-IRQ or
soft-IRQ context. In this context it is enough to just raise the softirq
because the softirq itself will be handled once that context is left.
In the case of the voluntary threaded handler, there is nothing that
will process pending softirqs. Which means it remain queued until
another random interrupt (on this CPU) fires and handles it on its exit
path or another thread locks and unlocks a lock with the bh suffix.
Worst case is that the CPU goes idle and the NOHZ complains about
unhandled softirqs.

Disable bottom halves before acquiring the lock (and disabling
interrupts) and enable them after dropping the lock. This ensures that
any pending softirqs will handled right away.

Link: https://lkml.kernel.org/r/c2a64979-73d1-2c22-e048-c275c9f81558@samsung.com
Fixes: e5f68b4a3e7b0 ("Revert "usb: dwc3: gadget: remove unnecessary _irqsave()"")
Cc: stable <stable@kernel.org>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/Yg/YPejVQH3KkRVd@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/gadget.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 9095ce52c28c6..b68fe48ac5792 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -3775,9 +3775,11 @@ static irqreturn_t dwc3_thread_interrupt(int irq, void *_evt)
 	unsigned long flags;
 	irqreturn_t ret = IRQ_NONE;
 
+	local_bh_disable();
 	spin_lock_irqsave(&dwc->lock, flags);
 	ret = dwc3_process_event_buf(evt);
 	spin_unlock_irqrestore(&dwc->lock, flags);
+	local_bh_enable();
 
 	return ret;
 }
-- 
GitLab


From 0b0a229da1f22f04b356b8ede564d95e046137b4 Mon Sep 17 00:00:00 2001
From: Puma Hsu <pumahsu@google.com>
Date: Tue, 15 Feb 2022 14:33:19 +0200
Subject: [PATCH 4215/4878] xhci: re-initialize the HC during resume if HCE was
 set

commit 8b328f8002bcf29ef517ee4bf234e09aabec4d2e upstream.

When HCE(Host Controller Error) is set, it means an internal
error condition has been detected. Software needs to re-initialize
the HC, so add this check in xhci resume.

Cc: stable@vger.kernel.org
Signed-off-by: Puma Hsu <pumahsu@google.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220215123320.1253947-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 325eb1609f8c5..351182986b500 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1091,6 +1091,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	int			retval = 0;
 	bool			comp_timer_running = false;
 	bool			pending_portevent = false;
+	bool			reinit_xhc = false;
 
 	if (!hcd->state)
 		return 0;
@@ -1107,10 +1108,11 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	set_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags);
 
 	spin_lock_irq(&xhci->lock);
-	if ((xhci->quirks & XHCI_RESET_ON_RESUME) || xhci->broken_suspend)
-		hibernated = true;
 
-	if (!hibernated) {
+	if (hibernated || xhci->quirks & XHCI_RESET_ON_RESUME || xhci->broken_suspend)
+		reinit_xhc = true;
+
+	if (!reinit_xhc) {
 		/*
 		 * Some controllers might lose power during suspend, so wait
 		 * for controller not ready bit to clear, just as in xHC init.
@@ -1143,12 +1145,17 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 			spin_unlock_irq(&xhci->lock);
 			return -ETIMEDOUT;
 		}
-		temp = readl(&xhci->op_regs->status);
 	}
 
-	/* If restore operation fails, re-initialize the HC during resume */
-	if ((temp & STS_SRE) || hibernated) {
+	temp = readl(&xhci->op_regs->status);
+
+	/* re-initialize the HC on Restore Error, or Host Controller Error */
+	if (temp & (STS_SRE | STS_HCE)) {
+		reinit_xhc = true;
+		xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp);
+	}
 
+	if (reinit_xhc) {
 		if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) &&
 				!(xhci_all_ports_seen_u0(xhci))) {
 			del_timer_sync(&xhci->comp_mode_recovery_timer);
-- 
GitLab


From 214824764308ae9b3dc0a99e369ef9a68af05923 Mon Sep 17 00:00:00 2001
From: Hongyu Xie <xiehongyu1@kylinos.cn>
Date: Tue, 15 Feb 2022 14:33:20 +0200
Subject: [PATCH 4216/4878] xhci: Prevent futile URB re-submissions due to
 incorrect return value.

commit 243a1dd7ba48c120986dd9e66fee74bcb7751034 upstream.

The -ENODEV return value from xhci_check_args() is incorrectly changed
to -EINVAL in a couple places before propagated further.

xhci_check_args() returns 4 types of value, -ENODEV, -EINVAL, 1 and 0.
xhci_urb_enqueue and xhci_check_streams_endpoint return -EINVAL if
the return value of xhci_check_args <= 0.
This causes problems for example r8152_submit_rx, calling usb_submit_urb
in drivers/net/usb/r8152.c.
r8152_submit_rx will never get -ENODEV after submiting an urb when xHC
is halted because xhci_urb_enqueue returns -EINVAL in the very beginning.

[commit message and header edit -Mathias]

Fixes: 203a86613fb3 ("xhci: Avoid NULL pointer deref when host dies.")
Cc: stable@vger.kernel.org
Signed-off-by: Hongyu Xie <xiehongyu1@kylinos.cn>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220215123320.1253947-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 351182986b500..49f74299d3f57 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1487,9 +1487,12 @@ static int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flag
 	struct urb_priv	*urb_priv;
 	int num_tds;
 
-	if (!urb || xhci_check_args(hcd, urb->dev, urb->ep,
-					true, true, __func__) <= 0)
+	if (!urb)
 		return -EINVAL;
+	ret = xhci_check_args(hcd, urb->dev, urb->ep,
+					true, true, __func__);
+	if (ret <= 0)
+		return ret ? ret : -EINVAL;
 
 	slot_id = urb->dev->slot_id;
 	ep_index = xhci_get_endpoint_index(&urb->ep->desc);
@@ -3289,7 +3292,7 @@ static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,
 		return -EINVAL;
 	ret = xhci_check_args(xhci_to_hcd(xhci), udev, ep, 1, true, __func__);
 	if (ret <= 0)
-		return -EINVAL;
+		return ret ? ret : -EINVAL;
 	if (usb_ss_max_streams(&ep->ss_ep_comp) == 0) {
 		xhci_warn(xhci, "WARN: SuperSpeed Endpoint Companion"
 				" descriptor for ep 0x%x does not support streams\n",
-- 
GitLab


From 8fe4da55246ac3cff5947485f466e5537c5bc294 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5rten=20Lindahl?= <marten.lindahl@axis.com>
Date: Wed, 16 Feb 2022 10:41:28 +0100
Subject: [PATCH 4217/4878] driver core: Free DMA range map when device is
 released
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit d8f7a5484f2188e9af2d9e4e587587d724501b12 upstream.

When unbinding/binding a driver with DMA mapped memory, the DMA map is
not freed before the driver is reloaded. This leads to a memory leak
when the DMA map is overwritten when reprobing the driver.

This can be reproduced with a platform driver having a dma-range:

dummy {
	...
	#address-cells = <0x2>;
	#size-cells = <0x2>;
	ranges;
	dma-ranges = <...>;
	...
};

and then unbinding/binding it:

~# echo soc:dummy >/sys/bus/platform/drivers/<driver>/unbind

DMA map object 0xffffff800b0ae540 still being held by &pdev->dev

~# echo soc:dummy >/sys/bus/platform/drivers/<driver>/bind
~# echo scan > /sys/kernel/debug/kmemleak
~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffffff800b0ae540 (size 64):
  comm "sh", pid 833, jiffies 4295174550 (age 2535.352s)
  hex dump (first 32 bytes):
    00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 80 00 00 00 00 00 00 00 80 00 00 00 00  ................
  backtrace:
    [<ffffffefd1694708>] create_object.isra.0+0x108/0x344
    [<ffffffefd1d1a850>] kmemleak_alloc+0x8c/0xd0
    [<ffffffefd167e2d0>] __kmalloc+0x440/0x6f0
    [<ffffffefd1a960a4>] of_dma_get_range+0x124/0x220
    [<ffffffefd1a8ce90>] of_dma_configure_id+0x40/0x2d0
    [<ffffffefd198b68c>] platform_dma_configure+0x5c/0xa4
    [<ffffffefd198846c>] really_probe+0x8c/0x514
    [<ffffffefd1988990>] __driver_probe_device+0x9c/0x19c
    [<ffffffefd1988cd8>] device_driver_attach+0x54/0xbc
    [<ffffffefd1986634>] bind_store+0xc4/0x120
    [<ffffffefd19856e0>] drv_attr_store+0x30/0x44
    [<ffffffefd173c9b0>] sysfs_kf_write+0x50/0x60
    [<ffffffefd173c1c4>] kernfs_fop_write_iter+0x124/0x1b4
    [<ffffffefd16a013c>] new_sync_write+0xdc/0x160
    [<ffffffefd16a256c>] vfs_write+0x23c/0x2a0
    [<ffffffefd16a2758>] ksys_write+0x64/0xec

To prevent this we should free the dma_range_map when the device is
released.

Fixes: e0d072782c73 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Cc: stable <stable@vger.kernel.org>
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com>
Link: https://lore.kernel.org/r/20220216094128.4025861-1-marten.lindahl@axis.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/dd.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 81ad4f867f02d..64ff137408b8c 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -592,6 +592,9 @@ re_probe:
 			drv->remove(dev);
 
 		devres_release_all(dev);
+		arch_teardown_dma_ops(dev);
+		kfree(dev->dma_range_map);
+		dev->dma_range_map = NULL;
 		driver_sysfs_remove(dev);
 		dev->driver = NULL;
 		dev_set_drvdata(dev, NULL);
@@ -1168,6 +1171,8 @@ static void __device_release_driver(struct device *dev, struct device *parent)
 
 		devres_release_all(dev);
 		arch_teardown_dma_ops(dev);
+		kfree(dev->dma_range_map);
+		dev->dma_range_map = NULL;
 		dev->driver = NULL;
 		dev_set_drvdata(dev, NULL);
 		if (dev->pm_domain && dev->pm_domain->dismiss)
-- 
GitLab


From 5b1cef5798b4fd6e4fd5522e7b8a26248beeacaa Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgg@nvidia.com>
Date: Wed, 23 Feb 2022 11:23:57 -0400
Subject: [PATCH 4218/4878] RDMA/cma: Do not change route.addr.src_addr outside
 state checks

commit 22e9f71072fa605cbf033158db58e0790101928d upstream.

If the state is not idle then resolve_prepare_src() should immediately
fail and no change to global state should happen. However, it
unconditionally overwrites the src_addr trying to build a temporary any
address.

For instance if the state is already RDMA_CM_LISTEN then this will corrupt
the src_addr and would cause the test in cma_cancel_operation():

           if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev)

Which would manifest as this trace from syzkaller:

  BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 lib/list_debug.c:26
  Read of size 8 at addr ffff8881546491e0 by task syz-executor.1/32204

  CPU: 1 PID: 32204 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller #0
  Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
  Call Trace:
   __dump_stack lib/dump_stack.c:79 [inline]
   dump_stack+0x141/0x1d7 lib/dump_stack.c:120
   print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:232
   __kasan_report mm/kasan/report.c:399 [inline]
   kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416
   __list_add_valid+0x93/0xa0 lib/list_debug.c:26
   __list_add include/linux/list.h:67 [inline]
   list_add_tail include/linux/list.h:100 [inline]
   cma_listen_on_all drivers/infiniband/core/cma.c:2557 [inline]
   rdma_listen+0x787/0xe00 drivers/infiniband/core/cma.c:3751
   ucma_listen+0x16a/0x210 drivers/infiniband/core/ucma.c:1102
   ucma_write+0x259/0x350 drivers/infiniband/core/ucma.c:1732
   vfs_write+0x28e/0xa30 fs/read_write.c:603
   ksys_write+0x1ee/0x250 fs/read_write.c:658
   do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
   entry_SYSCALL_64_after_hwframe+0x44/0xae

This is indicating that an rdma_id_private was destroyed without doing
cma_cancel_listens().

Instead of trying to re-use the src_addr memory to indirectly create an
any address derived from the dst build one explicitly on the stack and
bind to that as any other normal flow would do. rdma_bind_addr() will copy
it over the src_addr once it knows the state is valid.

This is similar to commit bc0bdc5afaa7 ("RDMA/cma: Do not change
route.addr.src_addr.ss_family")

Link: https://lore.kernel.org/r/0-v2-e975c8fd9ef2+11e-syz_cma_srcaddr_jgg@nvidia.com
Cc: stable@vger.kernel.org
Fixes: 732d41c545bb ("RDMA/cma: Make the locking for automatic state transition more clear")
Reported-by: syzbot+c94a3675a626f6333d74@syzkaller.appspotmail.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/cma.c | 40 +++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 16 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index ce492134c1e5c..fbb0efbe25f84 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3321,22 +3321,30 @@ err:
 static int cma_bind_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
 			 const struct sockaddr *dst_addr)
 {
-	if (!src_addr || !src_addr->sa_family) {
-		src_addr = (struct sockaddr *) &id->route.addr.src_addr;
-		src_addr->sa_family = dst_addr->sa_family;
-		if (IS_ENABLED(CONFIG_IPV6) &&
-		    dst_addr->sa_family == AF_INET6) {
-			struct sockaddr_in6 *src_addr6 = (struct sockaddr_in6 *) src_addr;
-			struct sockaddr_in6 *dst_addr6 = (struct sockaddr_in6 *) dst_addr;
-			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;
-			if (ipv6_addr_type(&dst_addr6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
-				id->route.addr.dev_addr.bound_dev_if = dst_addr6->sin6_scope_id;
-		} else if (dst_addr->sa_family == AF_IB) {
-			((struct sockaddr_ib *) src_addr)->sib_pkey =
-				((struct sockaddr_ib *) dst_addr)->sib_pkey;
-		}
-	}
-	return rdma_bind_addr(id, src_addr);
+	struct sockaddr_storage zero_sock = {};
+
+	if (src_addr && src_addr->sa_family)
+		return rdma_bind_addr(id, src_addr);
+
+	/*
+	 * When the src_addr is not specified, automatically supply an any addr
+	 */
+	zero_sock.ss_family = dst_addr->sa_family;
+	if (IS_ENABLED(CONFIG_IPV6) && dst_addr->sa_family == AF_INET6) {
+		struct sockaddr_in6 *src_addr6 =
+			(struct sockaddr_in6 *)&zero_sock;
+		struct sockaddr_in6 *dst_addr6 =
+			(struct sockaddr_in6 *)dst_addr;
+
+		src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;
+		if (ipv6_addr_type(&dst_addr6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+			id->route.addr.dev_addr.bound_dev_if =
+				dst_addr6->sin6_scope_id;
+	} else if (dst_addr->sa_family == AF_IB) {
+		((struct sockaddr_ib *)&zero_sock)->sib_pkey =
+			((struct sockaddr_ib *)dst_addr)->sib_pkey;
+	}
+	return rdma_bind_addr(id, (struct sockaddr *)&zero_sock);
 }
 
 /*
-- 
GitLab


From e098933866f9e1dd3ef4eebbe2e3d504f970f599 Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Wed, 23 Feb 2022 08:20:24 +0800
Subject: [PATCH 4219/4878] thermal: int340x: fix memory leak in
 int3400_notify()

commit 3abea10e6a8f0e7804ed4c124bea2d15aca977c8 upstream.

It is easy to hit the below memory leaks in my TigerLake platform:

unreferenced object 0xffff927c8b91dbc0 (size 32):
  comm "kworker/0:2", pid 112, jiffies 4294893323 (age 83.604s)
  hex dump (first 32 bytes):
    4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65  NAME=INT3400 The
    72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  rmal.kkkkkkkkkk.
  backtrace:
    [<ffffffff9c502c3e>] __kmalloc_track_caller+0x2fe/0x4a0
    [<ffffffff9c7b7c15>] kvasprintf+0x65/0xd0
    [<ffffffff9c7b7d6e>] kasprintf+0x4e/0x70
    [<ffffffffc04cb662>] int3400_notify+0x82/0x120 [int3400_thermal]
    [<ffffffff9c8b7358>] acpi_ev_notify_dispatch+0x54/0x71
    [<ffffffff9c88f1a7>] acpi_os_execute_deferred+0x17/0x30
    [<ffffffff9c2c2c0a>] process_one_work+0x21a/0x3f0
    [<ffffffff9c2c2e2a>] worker_thread+0x4a/0x3b0
    [<ffffffff9c2cb4dd>] kthread+0xfd/0x130
    [<ffffffff9c201c1f>] ret_from_fork+0x1f/0x30

Fix it by calling kfree() accordingly.

Fixes: 38e44da59130 ("thermal: int3400_thermal: process "thermal table changed" event")
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Cc: 4.14+ <stable@vger.kernel.org> # 4.14+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 0966551cbaaa0..793d7b58fc650 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -402,6 +402,10 @@ static void int3400_notify(acpi_handle handle,
 	thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", therm_event);
 	thermal_prop[4] = NULL;
 	kobject_uevent_env(&priv->thermal->device.kobj, KOBJ_CHANGE, thermal_prop);
+	kfree(thermal_prop[0]);
+	kfree(thermal_prop[1]);
+	kfree(thermal_prop[2]);
+	kfree(thermal_prop[3]);
 }
 
 static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
-- 
GitLab


From 9e2dbc31e367d08ee299a0d8aeb498cb2e12a1c3 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Sun, 13 Feb 2022 16:18:45 +0800
Subject: [PATCH 4220/4878] riscv: fix oops caused by irqsoff latency tracer

commit 22e2100b1b07d6f5acc71cc1acb53f680c677d77 upstream.

The trace_hardirqs_{on,off}() require the caller to setup frame pointer
properly. This because these two functions use macro 'CALLER_ADDR1' (aka.
__builtin_return_address(1)) to acquire caller info. If the $fp is used
for other purpose, the code generated this macro (as below) could trigger
memory access fault.

   0xffffffff8011510e <+80>:    ld      a1,-16(s0)
   0xffffffff80115112 <+84>:    ld      s2,-8(a1)  # <-- paging fault here

The oops message during booting if compiled with 'irqoff' tracer enabled:
[    0.039615][    T0] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8
[    0.041925][    T0] Oops [#1]
[    0.042063][    T0] Modules linked in:
[    0.042864][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc1-00233-g9a20c48d1ed2 #29
[    0.043568][    T0] Hardware name: riscv-virtio,qemu (DT)
[    0.044343][    T0] epc : trace_hardirqs_on+0x56/0xe2
[    0.044601][    T0]  ra : restore_all+0x12/0x6e
[    0.044721][    T0] epc : ffffffff80126a5c ra : ffffffff80003b94 sp : ffffffff81403db0
[    0.044801][    T0]  gp : ffffffff8163acd8 tp : ffffffff81414880 t0 : 0000000000000020
[    0.044882][    T0]  t1 : 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0
[    0.044967][    T0]  s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100
[    0.045046][    T0]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000
[    0.045124][    T0]  a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000054494d45
[    0.045210][    T0]  s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50
[    0.045289][    T0]  s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00000000800120e8
[    0.045389][    T0]  s8 : 0000000080013100 s9 : 000000000000007f s10: 0000000000000000
[    0.045474][    T0]  s11: 0000000000000000 t3 : 7fffffffffffffff t4 : 0000000000000000
[    0.045548][    T0]  t5 : 0000000000000000 t6 : ffffffff814aa368
[    0.045620][    T0] status: 0000000200000100 badaddr: 00000000000000f8 cause: 000000000000000d
[    0.046402][    T0] [<ffffffff80003b94>] restore_all+0x12/0x6e

This because the $fp(aka. $s0) register is not used as frame pointer in the
assembly entry code.

	resume_kernel:
		REG_L s0, TASK_TI_PREEMPT_COUNT(tp)
		bnez s0, restore_all
		REG_L s0, TASK_TI_FLAGS(tp)
                andi s0, s0, _TIF_NEED_RESCHED
                beqz s0, restore_all
                call preempt_schedule_irq
                j restore_all

To fix above issue, here we add one extra level wrapper for function
trace_hardirqs_{on,off}() so they can be safely called by low level entry
code.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
Fixes: 3c4697982982 ("riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/kernel/Makefile    |  2 ++
 arch/riscv/kernel/entry.S     | 10 +++++-----
 arch/riscv/kernel/trace_irq.c | 27 +++++++++++++++++++++++++++
 arch/riscv/kernel/trace_irq.h | 11 +++++++++++
 4 files changed, 45 insertions(+), 5 deletions(-)
 create mode 100644 arch/riscv/kernel/trace_irq.c
 create mode 100644 arch/riscv/kernel/trace_irq.h

diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile
index 62de075fc60c0..bc49d5f2302b6 100644
--- a/arch/riscv/kernel/Makefile
+++ b/arch/riscv/kernel/Makefile
@@ -44,6 +44,8 @@ obj-$(CONFIG_MODULE_SECTIONS)	+= module-sections.o
 obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
 obj-$(CONFIG_DYNAMIC_FTRACE)	+= mcount-dyn.o
 
+obj-$(CONFIG_TRACE_IRQFLAGS)	+= trace_irq.o
+
 obj-$(CONFIG_RISCV_BASE_PMU)	+= perf_event.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_callchain.o
 obj-$(CONFIG_HAVE_PERF_REGS)	+= perf_regs.o
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 76274a4a1d8e6..5214c578a6023 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -98,7 +98,7 @@ _save_context:
 .option pop
 
 #ifdef CONFIG_TRACE_IRQFLAGS
-	call trace_hardirqs_off
+	call __trace_hardirqs_off
 #endif
 
 #ifdef CONFIG_CONTEXT_TRACKING
@@ -131,7 +131,7 @@ skip_context_tracking:
 	andi t0, s1, SR_PIE
 	beqz t0, 1f
 #ifdef CONFIG_TRACE_IRQFLAGS
-	call trace_hardirqs_on
+	call __trace_hardirqs_on
 #endif
 	csrs CSR_STATUS, SR_IE
 
@@ -222,7 +222,7 @@ ret_from_exception:
 	REG_L s0, PT_STATUS(sp)
 	csrc CSR_STATUS, SR_IE
 #ifdef CONFIG_TRACE_IRQFLAGS
-	call trace_hardirqs_off
+	call __trace_hardirqs_off
 #endif
 #ifdef CONFIG_RISCV_M_MODE
 	/* the MPP value is too large to be used as an immediate arg for addi */
@@ -258,10 +258,10 @@ restore_all:
 	REG_L s1, PT_STATUS(sp)
 	andi t0, s1, SR_PIE
 	beqz t0, 1f
-	call trace_hardirqs_on
+	call __trace_hardirqs_on
 	j 2f
 1:
-	call trace_hardirqs_off
+	call __trace_hardirqs_off
 2:
 #endif
 	REG_L a0, PT_STATUS(sp)
diff --git a/arch/riscv/kernel/trace_irq.c b/arch/riscv/kernel/trace_irq.c
new file mode 100644
index 0000000000000..095ac976d7da1
--- /dev/null
+++ b/arch/riscv/kernel/trace_irq.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 Changbin Du <changbin.du@gmail.com>
+ */
+
+#include <linux/irqflags.h>
+#include <linux/kprobes.h>
+#include "trace_irq.h"
+
+/*
+ * trace_hardirqs_on/off require the caller to setup frame pointer properly.
+ * Otherwise, CALLER_ADDR1 might trigger an pagging exception in kernel.
+ * Here we add one extra level so they can be safely called by low
+ * level entry code which $fp is used for other purpose.
+ */
+
+void __trace_hardirqs_on(void)
+{
+	trace_hardirqs_on();
+}
+NOKPROBE_SYMBOL(__trace_hardirqs_on);
+
+void __trace_hardirqs_off(void)
+{
+	trace_hardirqs_off();
+}
+NOKPROBE_SYMBOL(__trace_hardirqs_off);
diff --git a/arch/riscv/kernel/trace_irq.h b/arch/riscv/kernel/trace_irq.h
new file mode 100644
index 0000000000000..99fe67377e5ed
--- /dev/null
+++ b/arch/riscv/kernel/trace_irq.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2022 Changbin Du <changbin.du@gmail.com>
+ */
+#ifndef __TRACE_IRQ_H
+#define __TRACE_IRQ_H
+
+void __trace_hardirqs_on(void);
+void __trace_hardirqs_off(void);
+
+#endif /* __TRACE_IRQ_H */
-- 
GitLab


From 90b47e617fb277173dd62df2f2d900ea42b7cefc Mon Sep 17 00:00:00 2001
From: "daniel.starke@siemens.com" <daniel.starke@siemens.com>
Date: Thu, 17 Feb 2022 23:31:17 -0800
Subject: [PATCH 4221/4878] tty: n_gsm: fix encoding of control signal octet
 bit DV

commit 737b0ef3be6b319d6c1fd64193d1603311969326 upstream.

n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010.
See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516
The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to
the newer 27.010 here. Chapter 5.4.6.3.7 describes the encoding of the
control signal octet used by the MSC (modem status command). The same
encoding is also used in convergence layer type 2 as described in chapter
5.5.2. Table 7 and 24 both require the DV (data valid) bit to be set 1 for
outgoing control signal octets sent by the DTE (data terminal equipment),
i.e. for the initiator side.
Currently, the DV bit is only set if CD (carrier detect) is on, regardless
of the side.

This patch fixes this behavior by setting the DV bit on the initiator side
unconditionally.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-1-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index b8f8621537720..70d081287bddc 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -434,7 +434,7 @@ static u8 gsm_encode_modem(const struct gsm_dlci *dlci)
 		modembits |= MDM_RTR;
 	if (dlci->modem_tx & TIOCM_RI)
 		modembits |= MDM_IC;
-	if (dlci->modem_tx & TIOCM_CD)
+	if (dlci->modem_tx & TIOCM_CD || dlci->gsm->initiator)
 		modembits |= MDM_DV;
 	return modembits;
 }
-- 
GitLab


From 1e35cb9e1271816035089d80b867e2662e3bee54 Mon Sep 17 00:00:00 2001
From: "daniel.starke@siemens.com" <daniel.starke@siemens.com>
Date: Thu, 17 Feb 2022 23:31:19 -0800
Subject: [PATCH 4222/4878] tty: n_gsm: fix proper link termination after
 failed open

commit e3b7468f082d106459e86e8dc6fb9bdd65553433 upstream.

Trying to open a DLCI by sending a SABM frame may fail with a timeout.
The link is closed on the initiator side without informing the responder
about this event. The responder assumes the link is open after sending a
UA frame to answer the SABM frame. The link gets stuck in a half open
state.

This patch fixes this by initiating the proper link termination procedure
after link setup timeout instead of silently closing it down.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-3-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 70d081287bddc..8e062cc466418 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1485,7 +1485,7 @@ static void gsm_dlci_t1(struct timer_list *t)
 			dlci->mode = DLCI_MODE_ADM;
 			gsm_dlci_open(dlci);
 		} else {
-			gsm_dlci_close(dlci);
+			gsm_dlci_begin_close(dlci); /* prevent half open link */
 		}
 
 		break;
-- 
GitLab


From 1f0641dd0b6c60093825337563e1c9abec41757c Mon Sep 17 00:00:00 2001
From: "daniel.starke@siemens.com" <daniel.starke@siemens.com>
Date: Thu, 17 Feb 2022 23:31:20 -0800
Subject: [PATCH 4223/4878] tty: n_gsm: fix NULL pointer access due to DLCI
 release

commit 96b169f05cdcc844b400695184d77e42071d14f2 upstream.

The here fixed commit made the tty hangup asynchronous to avoid a circular
locking warning. I could not reproduce this warning. Furthermore, due to
the asynchronous hangup the function call now gets queued up while the
underlying tty is being freed. Depending on the timing this results in a
NULL pointer access in the global work queue scheduler. To be precise in
process_one_work(). Therefore, the previous commit made the issue worse
which it tried to fix.

This patch fixes this by falling back to the old behavior which uses a
blocking tty hangup call before freeing up the associated tty.

Fixes: 7030082a7415 ("tty: n_gsm: avoid recursive locking with async port hangup")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-4-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 8e062cc466418..6d3265397d304 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1719,7 +1719,12 @@ static void gsm_dlci_release(struct gsm_dlci *dlci)
 		gsm_destroy_network(dlci);
 		mutex_unlock(&dlci->mutex);
 
-		tty_hangup(tty);
+		/* We cannot use tty_hangup() because in tty_kref_put() the tty
+		 * driver assumes that the hangup queue is free and reuses it to
+		 * queue release_one_tty() -> NULL pointer panic in
+		 * process_one_work().
+		 */
+		tty_vhangup(tty);
 
 		tty_port_tty_set(&dlci->port, NULL);
 		tty_kref_put(tty);
-- 
GitLab


From e4c8cb95d03543c721e7a1265253eda2ce1b8370 Mon Sep 17 00:00:00 2001
From: "daniel.starke@siemens.com" <daniel.starke@siemens.com>
Date: Thu, 17 Feb 2022 23:31:21 -0800
Subject: [PATCH 4224/4878] tty: n_gsm: fix wrong tty control line for flow
 control

commit c19d93542a6081577e6da9bf5e887979c72e80c1 upstream.

tty flow control is handled via gsmtty_throttle() and gsmtty_unthrottle().
Both functions propagate the outgoing hardware flow control state to the
remote side via MSC (modem status command) frames. The local state is taken
from the RTS (ready to send) flag of the tty. However, RTS gets mapped to
DTR (data terminal ready), which is wrong.
This patch corrects this by mapping RTS to RTS.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-5-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 6d3265397d304..dba5a03caa263 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -3178,9 +3178,9 @@ static void gsmtty_throttle(struct tty_struct *tty)
 	if (dlci->state == DLCI_CLOSED)
 		return;
 	if (C_CRTSCTS(tty))
-		dlci->modem_tx &= ~TIOCM_DTR;
+		dlci->modem_tx &= ~TIOCM_RTS;
 	dlci->throttled = true;
-	/* Send an MSC with DTR cleared */
+	/* Send an MSC with RTS cleared */
 	gsmtty_modem_update(dlci, 0);
 }
 
@@ -3190,9 +3190,9 @@ static void gsmtty_unthrottle(struct tty_struct *tty)
 	if (dlci->state == DLCI_CLOSED)
 		return;
 	if (C_CRTSCTS(tty))
-		dlci->modem_tx |= TIOCM_DTR;
+		dlci->modem_tx |= TIOCM_RTS;
 	dlci->throttled = false;
-	/* Send an MSC with DTR set */
+	/* Send an MSC with RTS set */
 	gsmtty_modem_update(dlci, 0);
 }
 
-- 
GitLab


From bb2e0a77235a1b083a255c462cbacfb40def9a58 Mon Sep 17 00:00:00 2001
From: "daniel.starke@siemens.com" <daniel.starke@siemens.com>
Date: Thu, 17 Feb 2022 23:31:23 -0800
Subject: [PATCH 4225/4878] tty: n_gsm: fix deadlock in gsmtty_open()

commit a2ab75b8e76e455af7867e3835fd9cdf386b508f upstream.

In the current implementation the user may open a virtual tty which then
could fail to establish the underlying DLCI. The function gsmtty_open()
gets stuck in tty_port_block_til_ready() while waiting for a carrier rise.
This happens if the remote side fails to acknowledge the link establishment
request in time or completely. At some point gsm_dlci_close() is called
to abort the link establishment attempt. The function tries to inform the
associated virtual tty by performing a hangup. But the blocking loop within
tty_port_block_til_ready() is not informed about this event.
The patch proposed here fixes this by resetting the initialization state of
the virtual tty to ensure the loop exits and triggering it to make
tty_port_block_til_ready() return.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20220218073123.2121-7-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index dba5a03caa263..05562b3cca451 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1426,6 +1426,9 @@ static void gsm_dlci_close(struct gsm_dlci *dlci)
 	if (dlci->addr != 0) {
 		tty_port_tty_hangup(&dlci->port, false);
 		kfifo_reset(&dlci->fifo);
+		/* Ensure that gsmtty_open() can return. */
+		tty_port_set_initialized(&dlci->port, 0);
+		wake_up_interruptible(&dlci->port.open_wait);
 	} else
 		dlci->gsm->dead = true;
 	wake_up(&dlci->gsm->event);
-- 
GitLab


From 4185b788d3adc9e66b5b9c959b91ae17b8488fc3 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Fri, 11 Feb 2022 09:39:04 +0000
Subject: [PATCH 4226/4878] gpio: tegra186: Fix chip_data type confusion

commit d1e972ace42390de739cde87d96043dcbe502286 upstream.

The tegra186 GPIO driver makes the assumption that the pointer
returned by irq_data_get_irq_chip_data() is a pointer to a
tegra_gpio structure. Unfortunately, it is actually a pointer
to the inner gpio_chip structure, as mandated by the gpiolib
infrastructure. Nice try.

The saving grace is that the gpio_chip is the first member of
tegra_gpio, so the bug has gone undetected since... forever.

Fix it by performing a container_of() on the pointer. This results
in no additional code, and makes it possible to understand how
the whole thing works.

Fixes: 5b2b135a87fc ("gpio: Add Tegra186 support")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20220211093904.1112679-1-maz@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-tegra186.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 9500074b1f1b5..7fbe5f0681b95 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -337,9 +337,12 @@ static int tegra186_gpio_of_xlate(struct gpio_chip *chip,
 	return offset + pin;
 }
 
+#define to_tegra_gpio(x) container_of((x), struct tegra_gpio, gpio)
+
 static void tegra186_irq_ack(struct irq_data *data)
 {
-	struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+	struct tegra_gpio *gpio = to_tegra_gpio(gc);
 	void __iomem *base;
 
 	base = tegra186_gpio_get_base(gpio, data->hwirq);
@@ -351,7 +354,8 @@ static void tegra186_irq_ack(struct irq_data *data)
 
 static void tegra186_irq_mask(struct irq_data *data)
 {
-	struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+	struct tegra_gpio *gpio = to_tegra_gpio(gc);
 	void __iomem *base;
 	u32 value;
 
@@ -366,7 +370,8 @@ static void tegra186_irq_mask(struct irq_data *data)
 
 static void tegra186_irq_unmask(struct irq_data *data)
 {
-	struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+	struct tegra_gpio *gpio = to_tegra_gpio(gc);
 	void __iomem *base;
 	u32 value;
 
@@ -381,7 +386,8 @@ static void tegra186_irq_unmask(struct irq_data *data)
 
 static int tegra186_irq_set_type(struct irq_data *data, unsigned int type)
 {
-	struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data);
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(data);
+	struct tegra_gpio *gpio = to_tegra_gpio(gc);
 	void __iomem *base;
 	u32 value;
 
-- 
GitLab


From 78706b051a8a314b55f13bcef3351e7d8e974a88 Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Thu, 17 Feb 2022 22:53:27 +0800
Subject: [PATCH 4227/4878] memblock: use kfree() to release kmalloced memblock
 regions

commit c94afc46cae7ad41b2ad6a99368147879f4b0e56 upstream.

memblock.{reserved,memory}.regions may be allocated using kmalloc() in
memblock_double_array(). Use kfree() to release these kmalloced regions
indicated by memblock_{reserved,memory}_in_slab.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Fixes: 3010f876500f ("mm: discard memblock data later")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/memblock.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index faa4de579b3db..f72d539570339 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -366,14 +366,20 @@ void __init memblock_discard(void)
 		addr = __pa(memblock.reserved.regions);
 		size = PAGE_ALIGN(sizeof(struct memblock_region) *
 				  memblock.reserved.max);
-		__memblock_free_late(addr, size);
+		if (memblock_reserved_in_slab)
+			kfree(memblock.reserved.regions);
+		else
+			__memblock_free_late(addr, size);
 	}
 
 	if (memblock.memory.regions != memblock_memory_init_regions) {
 		addr = __pa(memblock.memory.regions);
 		size = PAGE_ALIGN(sizeof(struct memblock_region) *
 				  memblock.memory.max);
-		__memblock_free_late(addr, size);
+		if (memblock_memory_in_slab)
+			kfree(memblock.memory.regions);
+		else
+			__memblock_free_late(addr, size);
 	}
 
 	memblock_memory = NULL;
-- 
GitLab


From 915a747ac7f368a9979638e86fb9097d6a903672 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 2 Mar 2022 11:42:57 +0100
Subject: [PATCH 4228/4878] Linux 5.10.103

Link: https://lore.kernel.org/r/20220228172311.789892158@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Slade Watkins <slade@sladewatkins.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index f71684d435e5a..829a66a36807e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 102
+SUBLEVEL = 103
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 1e1bee0a18c41fab31728fb1cb9b32820bbc6e76 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 17 Feb 2022 16:10:58 -0800
Subject: [PATCH 4229/4878] ANDROID: fuse-bpf: Move bpf earlier in
 fuse_permission

In the backing case, we initially want to call out to the fuse-bpf
implementation, and only fall back to userspace if that requests it.
Otherwise we end up making requests to userspace that the daemon may not
be equiped to respond to.

Change-Id: If3780aa8b7c45558717a9efba0b1781e8d63a3c0
Bug: 217570523
Test: generic/099
Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 fs/fuse/dir.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index a6e0a3a270074..64b3b8a2718c2 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1514,7 +1514,6 @@ static int fuse_perm_getattr(struct inode *inode, int mask)
 		return -ECHILD;
 
 	forget_all_cached_acls(inode);
-	/* TODO: BPF stuff here? But we have no dentry for path for vfs_getattr */
 	return fuse_do_getattr(inode, NULL, NULL);
 }
 
@@ -1537,6 +1536,9 @@ static int fuse_permission(struct inode *inode, int mask)
 	bool refreshed = false;
 	int err = 0;
 	struct fuse_inode *fi = get_fuse_inode(inode);
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+#endif
 
 	if (fuse_is_bad(inode))
 		return -EIO;
@@ -1544,6 +1546,14 @@ static int fuse_permission(struct inode *inode, int mask)
 	if (!fuse_allow_current_process(fc))
 		return -EACCES;
 
+#ifdef CONFIG_FUSE_BPF
+	fer = fuse_bpf_backing(inode, struct fuse_access_in,
+			       fuse_access_initialize, fuse_access_backing,
+			       fuse_access_finalize, inode, mask);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	/*
 	 * If attributes are needed, refresh them before proceeding
 	 */
@@ -1588,10 +1598,6 @@ static int fuse_permission(struct inode *inode, int mask)
 			if (!err && !(inode->i_mode & S_IXUGO))
 				return -EACCES;
 		}
-#ifdef CONFIG_FUSE_BPF
-	} else if (!(mask & MAY_NOT_BLOCK) && fi->backing_inode) {
-		err = fuse_access(inode, mask);
-#endif
 	}
 	return err;
 }
-- 
GitLab


From 5c012ab404f845b4f9872a57bd3e4fba6d30af29 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 2 Mar 2022 15:18:27 -0800
Subject: [PATCH 4230/4878] ANDROID: fuse-bpf: Invalidate if lower is unhashed

If the lower filesystem has deleted a file or folder behind our back, we
should drop it as well.

Bug: 221093504
Test: atest android.hardware.cts.CameraTest#testJpegThumbnailSize
      several times in a row
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ibd92dea83a82dd7ab21269ae5d2533e4826f5fb7
---
 fs/fuse/backing.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index c1e57a06c469b..3c38a3c6cd43b 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1055,6 +1055,13 @@ int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
 	struct fuse_dentry *fuse_dentry = get_fuse_dentry(entry);
 	struct dentry *backing_entry = fuse_dentry->backing_path.dentry;
 
+	spin_lock(&backing_entry->d_lock);
+	if (d_unhashed(backing_entry)) {
+		spin_unlock(&backing_entry->d_lock);
+			return 0;
+	}
+	spin_unlock(&backing_entry->d_lock);
+
 	if (unlikely(backing_entry->d_flags & DCACHE_OP_REVALIDATE))
 		return backing_entry->d_op->d_revalidate(backing_entry, flags);
 	return 1;
-- 
GitLab


From 7a711a544795d65070b2600adaf5b6c7e4f69330 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 27 Jan 2022 13:44:49 +0800
Subject: [PATCH 4231/4878] f2fs: fix to avoid potential deadlock

Quoted from Jing Xia's report, there is a potential deadlock may happen
between kworker and checkpoint as below:

[T:writeback]				[T:checkpoint]
- wb_writeback
 - blk_start_plug
bio contains NodeA was plugged in writeback threads
					- do_writepages  -- sync write inodeB, inc wb_sync_req[DATA]
					 - f2fs_write_data_pages
					  - f2fs_write_single_data_page -- write last dirty page
					   - f2fs_do_write_data_page
					    - set_page_writeback  -- clear page dirty flag and
					    PAGECACHE_TAG_DIRTY tag in radix tree
					    - f2fs_outplace_write_data
					     - f2fs_update_data_blkaddr
					      - f2fs_wait_on_page_writeback -- wait NodeA to writeback here
					   - inode_dec_dirty_pages
 - writeback_sb_inodes
  - writeback_single_inode
   - do_writepages
    - f2fs_write_data_pages -- skip writepages due to wb_sync_req[DATA]
     - wbc->pages_skipped += get_dirty_pages() -- PAGECACHE_TAG_DIRTY is not set but get_dirty_pages() returns one
  - requeue_inode -- requeue inode to wb->b_dirty queue due to non-zero.pages_skipped
 - blk_finish_plug

Let's try to avoid deadlock condition by forcing unplugging previous bio via
blk_finish_plug(current->plug) once we'v skipped writeback in writepages()
due to valid sbi->wb_sync_req[DATA/NODE].

Fixes: 687de7f1010c ("f2fs: avoid IO split due to mixed WB_SYNC_ALL and WB_SYNC_NONE")
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Signed-off-by: Jing Xia <jing.xia@unisoc.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c | 6 +++++-
 fs/f2fs/node.c | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 343a9be6350d3..4ec21b035d4b1 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3192,8 +3192,12 @@ static int __f2fs_write_data_pages(struct address_space *mapping,
 	/* to avoid spliting IOs due to mixed WB_SYNC_ALL and WB_SYNC_NONE */
 	if (wbc->sync_mode == WB_SYNC_ALL)
 		atomic_inc(&sbi->wb_sync_req[DATA]);
-	else if (atomic_read(&sbi->wb_sync_req[DATA]))
+	else if (atomic_read(&sbi->wb_sync_req[DATA])) {
+		/* to avoid potential deadlock */
+		if (current->plug)
+			blk_finish_plug(current->plug);
 		goto skip_write;
+	}
 
 	if (__should_serialize_io(inode, wbc)) {
 		mutex_lock(&sbi->writepages);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 45bc2f93e5a30..ba0766a56dfaa 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2112,8 +2112,12 @@ static int f2fs_write_node_pages(struct address_space *mapping,
 
 	if (wbc->sync_mode == WB_SYNC_ALL)
 		atomic_inc(&sbi->wb_sync_req[NODE]);
-	else if (atomic_read(&sbi->wb_sync_req[NODE]))
+	else if (atomic_read(&sbi->wb_sync_req[NODE])) {
+		/* to avoid potential deadlock */
+		if (current->plug)
+			blk_finish_plug(current->plug);
 		goto skip_write;
+	}
 
 	trace_f2fs_writepages(mapping->host, wbc, NODE);
 
-- 
GitLab


From 266c3326adbe88ef50b576f34510e8aeb1915368 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 4 Mar 2022 09:49:13 +0800
Subject: [PATCH 4232/4878] f2fs: fix to do sanity check on curseg->alloc_type

As Wenqing Liu reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215657

- Overview
UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2 when mount and operate a corrupted image

- Reproduce
tested on kernel 5.17-rc4, 5.17-rc6

1. mkdir test_crash
2. cd test_crash
3. unzip tmp2.zip
4. mkdir mnt
5. ./single_test.sh f2fs 2

- Kernel dump
[   46.434454] loop0: detected capacity change from 0 to 131072
[   46.529839] F2FS-fs (loop0): Mounted with checkpoint version = 7548c2d9
[   46.738319] ================================================================================
[   46.738412] UBSAN: array-index-out-of-bounds in fs/f2fs/segment.c:3460:2
[   46.738475] index 231 is out of range for type 'unsigned int [2]'
[   46.738539] CPU: 2 PID: 939 Comm: umount Not tainted 5.17.0-rc6 #1
[   46.738547] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-1ubuntu1.1 04/01/2014
[   46.738551] Call Trace:
[   46.738556]  <TASK>
[   46.738563]  dump_stack_lvl+0x47/0x5c
[   46.738581]  ubsan_epilogue+0x5/0x50
[   46.738592]  __ubsan_handle_out_of_bounds+0x68/0x80
[   46.738604]  f2fs_allocate_data_block+0xdff/0xe60 [f2fs]
[   46.738819]  do_write_page+0xef/0x210 [f2fs]
[   46.738934]  f2fs_do_write_node_page+0x3f/0x80 [f2fs]
[   46.739038]  __write_node_page+0x2b7/0x920 [f2fs]
[   46.739162]  f2fs_sync_node_pages+0x943/0xb00 [f2fs]
[   46.739293]  f2fs_write_checkpoint+0x7bb/0x1030 [f2fs]
[   46.739405]  kill_f2fs_super+0x125/0x150 [f2fs]
[   46.739507]  deactivate_locked_super+0x60/0xc0
[   46.739517]  deactivate_super+0x70/0xb0
[   46.739524]  cleanup_mnt+0x11a/0x200
[   46.739532]  __cleanup_mnt+0x16/0x20
[   46.739538]  task_work_run+0x67/0xa0
[   46.739547]  exit_to_user_mode_prepare+0x18c/0x1a0
[   46.739559]  syscall_exit_to_user_mode+0x26/0x40
[   46.739568]  do_syscall_64+0x46/0xb0
[   46.739584]  entry_SYSCALL_64_after_hwframe+0x44/0xae

The root cause is we missed to do sanity check on curseg->alloc_type,
result in out-of-bound accessing on sbi->block_count[] array, fix it.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/segment.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 296c271eb7d85..e5e4956ead314 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -4796,6 +4796,13 @@ static int sanity_check_curseg(struct f2fs_sb_info *sbi)
 
 		sanity_check_seg_type(sbi, curseg->seg_type);
 
+		if (curseg->alloc_type != LFS && curseg->alloc_type != SSR) {
+			f2fs_err(sbi,
+				 "Current segment has invalid alloc_type:%d",
+				 curseg->alloc_type);
+			return -EFSCORRUPTED;
+		}
+
 		if (f2fs_test_bit(blkofs, se->cur_valid_map))
 			goto out;
 
-- 
GitLab


From beebf94806e8056831f1ce7c15396ce8d86327b2 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Wed, 2 Mar 2022 11:39:08 -0800
Subject: [PATCH 4233/4878] f2fs: avoid an infinite loop in
 f2fs_sync_dirty_inodes

If one read IO is always failing, we can fall into an infinite loop in
f2fs_sync_dirty_inodes. This happens during xfstests/generic/475.

[  142.803335] Buffer I/O error on dev dm-1, logical block 8388592, async page read
...
[  382.887210]  submit_bio_noacct+0xdd/0x2a0
[  382.887213]  submit_bio+0x80/0x110
[  382.887223]  __submit_bio+0x4d/0x300 [f2fs]
[  382.887282]  f2fs_submit_page_bio+0x125/0x200 [f2fs]
[  382.887299]  __get_meta_page+0xc9/0x280 [f2fs]
[  382.887315]  f2fs_get_meta_page+0x13/0x20 [f2fs]
[  382.887331]  f2fs_get_node_info+0x317/0x3c0 [f2fs]
[  382.887350]  f2fs_do_write_data_page+0x327/0x6f0 [f2fs]
[  382.887367]  f2fs_write_single_data_page+0x5b7/0x960 [f2fs]
[  382.887386]  f2fs_write_cache_pages+0x302/0x890 [f2fs]
[  382.887405]  ? preempt_count_add+0x7a/0xc0
[  382.887408]  f2fs_write_data_pages+0xfd/0x320 [f2fs]
[  382.887425]  ? _raw_spin_unlock+0x1a/0x30
[  382.887428]  do_writepages+0xd3/0x1d0
[  382.887432]  filemap_fdatawrite_wbc+0x69/0x90
[  382.887434]  filemap_fdatawrite+0x50/0x70
[  382.887437]  f2fs_sync_dirty_inodes+0xa4/0x270 [f2fs]
[  382.887453]  f2fs_write_checkpoint+0x189/0x1640 [f2fs]
[  382.887469]  ? schedule_timeout+0x114/0x150
[  382.887471]  ? ttwu_do_activate+0x6d/0xb0
[  382.887473]  ? preempt_count_add+0x7a/0xc0
[  382.887476]  kill_f2fs_super+0xca/0x100 [f2fs]
[  382.887491]  deactivate_locked_super+0x35/0xa0
[  382.887494]  deactivate_super+0x40/0x50
[  382.887497]  cleanup_mnt+0x139/0x190
[  382.887499]  __cleanup_mnt+0x12/0x20
[  382.887501]  task_work_run+0x64/0xa0
[  382.887505]  exit_to_user_mode_prepare+0x1b7/0x1c0
[  382.887508]  syscall_exit_to_user_mode+0x27/0x50
[  382.887510]  do_syscall_64+0x48/0xc0
[  382.887513]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 7 +++++++
 fs/f2fs/f2fs.h       | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 4479c6a1ccdf6..dea5b5c57bd85 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -98,6 +98,13 @@ repeat:
 	}
 
 	if (unlikely(!PageUptodate(page))) {
+		if (page->index == sbi->metapage_eio_ofs &&
+			sbi->metapage_eio_cnt++ == MAX_RETRY_META_PAGE_EIO) {
+			set_ckpt_flags(sbi, CP_ERROR_FLAG);
+		} else {
+			sbi->metapage_eio_ofs = page->index;
+			sbi->metapage_eio_cnt = 0;
+		}
 		f2fs_put_page(page, 1);
 		return ERR_PTR(-EIO);
 	}
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 0f98763d03568..9e4d96f385c36 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -575,6 +575,9 @@ enum {
 /* maximum retry quota flush count */
 #define DEFAULT_RETRY_QUOTA_FLUSH_COUNT		8
 
+/* maximum retry of EIO'ed meta page */
+#define MAX_RETRY_META_PAGE_EIO			100
+
 #define F2FS_LINK_MAX	0xffffffff	/* maximum link count per file */
 
 #define MAX_DIR_RA_PAGES	4	/* maximum ra pages of dir */
@@ -1613,6 +1616,8 @@ struct f2fs_sb_info {
 	/* keep migration IO order for LFS mode */
 	struct f2fs_rwsem io_order_lock;
 	mempool_t *write_io_dummy;		/* Dummy pages */
+	pgoff_t metapage_eio_ofs;		/* EIO page offset */
+	int metapage_eio_cnt;			/* EIO count */
 
 	/* for checkpoint */
 	struct f2fs_checkpoint *ckpt;		/* raw checkpoint pointer */
-- 
GitLab


From e9e689047fc88908c39ce2f61b89b21dad6afd02 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 3 Mar 2022 13:21:27 -0800
Subject: [PATCH 4234/4878] f2fs: introduce F2FS_UNFAIR_RWSEM to support unfair
 rwsem

Unfair rwsem should be used when blk-cg is on. Otherwise, there is regression.

FYI, we noticed a -26.7% regression of aim7.jobs-per-min due to commit:

commit: e4544b63a7ee49e7fbebf35ece0a6acd3b9617ae ("f2fs: move f2fs to use reader-unfair rwsems")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: aim7
on test machine: 88 threads 2 sockets Intel(R) Xeon(R) Gold 6238M CPU @ 2.10GHz with 128G memory
with following parameters:

	disk: 4BRD_12G
	md: RAID0
	fs: f2fs
	test: sync_disk_rw
	load: 100
	cpufreq_governor: performance
	ucode: 0x500320a

test-description: AIM7 is a traditional UNIX system level benchmark suite which is used to test and measure the performance of multiuser system.
test-url: https://sourceforge.net/projects/aimbench/files/aim-suite7/

Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/Kconfig |  7 +++++++
 fs/f2fs/f2fs.h  | 10 ++++++++++
 2 files changed, 17 insertions(+)

diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index f46a7339d6cf7..03ef087537c7c 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -143,3 +143,10 @@ config F2FS_IOSTAT
 	  Support getting IO statistics through sysfs and printing out periodic
 	  IO statistics tracepoint events. You have to turn on "iostat_enable"
 	  sysfs node to enable this feature.
+
+config F2FS_UNFAIR_RWSEM
+	bool "F2FS unfair rw_semaphore"
+	depends on F2FS_FS && BLK_CGROUP
+	help
+	  Use unfair rw_semaphore, if system configured IO priority by block
+	  cgroup.
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9e4d96f385c36..14b905f0237aa 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -130,7 +130,9 @@ typedef u32 nid_t;
 
 struct f2fs_rwsem {
         struct rw_semaphore internal_rwsem;
+#ifdef CONFIG_F2FS_UNFAIR_RWSEM
         wait_queue_head_t read_waiters;
+#endif
 };
 
 struct f2fs_mount_info {
@@ -2130,7 +2132,9 @@ static inline void __init_f2fs_rwsem(struct f2fs_rwsem *sem,
 		const char *sem_name, struct lock_class_key *key)
 {
 	__init_rwsem(&sem->internal_rwsem, sem_name, key);
+#ifdef CONFIG_F2FS_UNFAIR_RWSEM
 	init_waitqueue_head(&sem->read_waiters);
+#endif
 }
 
 static inline int f2fs_rwsem_is_locked(struct f2fs_rwsem *sem)
@@ -2145,7 +2149,11 @@ static inline int f2fs_rwsem_is_contended(struct f2fs_rwsem *sem)
 
 static inline void f2fs_down_read(struct f2fs_rwsem *sem)
 {
+#ifdef CONFIG_F2FS_UNFAIR_RWSEM
 	wait_event(sem->read_waiters, down_read_trylock(&sem->internal_rwsem));
+#else
+	down_read(&sem->internal_rwsem);
+#endif
 }
 
 static inline int f2fs_down_read_trylock(struct f2fs_rwsem *sem)
@@ -2180,7 +2188,9 @@ static inline int f2fs_down_write_trylock(struct f2fs_rwsem *sem)
 static inline void f2fs_up_write(struct f2fs_rwsem *sem)
 {
 	up_write(&sem->internal_rwsem);
+#ifdef CONFIG_F2FS_UNFAIR_RWSEM
 	wake_up_all(&sem->read_waiters);
+#endif
 }
 
 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
-- 
GitLab


From 13d7c1f13e43fa36138bb8ef328cab127ce1319b Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Fri, 4 Mar 2022 11:49:36 +0000
Subject: [PATCH 4235/4878] ANDROID: gki_defconfig: Disable KVM_S2MPU
 temporarily

Bug: 219180169
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Idc96da0b25619d47dd0af6721b1ba2058be5812c
---
 arch/arm64/configs/gki_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 857bf01d19b74..ea60da94ada12 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -87,7 +87,6 @@ CONFIG_ARM_SCPI_PROTOCOL=y
 # CONFIG_EFI_ARMSTUB_DTB_LOADER is not set
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM=y
-CONFIG_KVM_S2MPU=y
 CONFIG_CRYPTO_SHA2_ARM64_CE=y
 CONFIG_CRYPTO_SHA512_ARM64_CE=y
 CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
-- 
GitLab


From 56d08a94b02978a14b08ddf6c3c1467b51e49b6b Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 4 Mar 2022 17:24:25 +0000
Subject: [PATCH 4236/4878] ANDROID: KVM: arm64: Relax SMCCC version check
 during FF-A proxy init

Although FF-A claims to require version v1.2 of SMCCC, in reality the
current set of calls work just fine with v1.1 and some devices ship with
EL3 firmware that advertises this configuration.

Allow pKVM to proxy FF-A calls for these devices by relaxing our SMCCC
version check to permit SMCCC v1.1+

Reported-by: Alan Stokes <alanstokes@google.com>
Bug: 222663556
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I41e9ff35f169df3609acee7bbc67999c1d11c9d1
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index c524a60d84231..4dbd42a867565 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -643,7 +643,7 @@ int hyp_ffa_init(void *pages)
 	size_t min_rxtx_sz;
 	void *tx, *rx;
 
-	if (kvm_host_psci_config.smccc_version < ARM_SMCCC_VERSION_1_2)
+	if (kvm_host_psci_config.smccc_version < ARM_SMCCC_VERSION_1_1)
 		return 0;
 
 	arm_smccc_1_1_smc(FFA_VERSION, FFA_VERSION_1_0, 0, 0, 0, 0, 0, 0, &res);
-- 
GitLab


From c93e44a30f52d2b8413b86f1d790964deac7d471 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 27 May 2021 16:02:37 +0000
Subject: [PATCH 4237/4878] ANDROID: KVM: arm64: Add flags to struct hyp_page

Add a 'flags' field to struct hyp_page, and reduce the size of the order
field to u8 to avoid growing the struct size.

Bug: 219180169
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: If629935bb6fa7d832c595685083f7985cfcfa221
---
 arch/arm64/kvm/hyp/include/nvhe/gfp.h    |  6 +++---
 arch/arm64/kvm/hyp/include/nvhe/memory.h |  3 ++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c     | 14 +++++++-------
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/gfp.h b/arch/arm64/kvm/hyp/include/nvhe/gfp.h
index 0a048dc06a7d7..9330b13075f8a 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/gfp.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/gfp.h
@@ -7,7 +7,7 @@
 #include <nvhe/memory.h>
 #include <nvhe/spinlock.h>
 
-#define HYP_NO_ORDER	USHRT_MAX
+#define HYP_NO_ORDER	0xff
 
 struct hyp_pool {
 	/*
@@ -19,11 +19,11 @@ struct hyp_pool {
 	struct list_head free_area[MAX_ORDER];
 	phys_addr_t range_start;
 	phys_addr_t range_end;
-	unsigned short max_order;
+	u8 max_order;
 };
 
 /* Allocation */
-void *hyp_alloc_pages(struct hyp_pool *pool, unsigned short order);
+void *hyp_alloc_pages(struct hyp_pool *pool, u8 order);
 void hyp_split_page(struct hyp_page *page);
 void hyp_get_page(struct hyp_pool *pool, void *addr);
 void hyp_put_page(struct hyp_pool *pool, void *addr);
diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h
index 2f719f7fa3842..97da521cf3327 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/memory.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h
@@ -9,7 +9,8 @@
 
 struct hyp_page {
 	unsigned short refcount;
-	unsigned short order;
+	u8 order;
+	u8 flags;
 };
 
 extern s64 hyp_physvirt_offset;
diff --git a/arch/arm64/kvm/hyp/nvhe/page_alloc.c b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
index aa72fd2546ab3..80d447bcbfef6 100644
--- a/arch/arm64/kvm/hyp/nvhe/page_alloc.c
+++ b/arch/arm64/kvm/hyp/nvhe/page_alloc.c
@@ -32,7 +32,7 @@ u64 __hyp_vmemmap;
  */
 static struct hyp_page *__find_buddy_nocheck(struct hyp_pool *pool,
 					     struct hyp_page *p,
-					     unsigned short order)
+					     u8 order)
 {
 	phys_addr_t addr = hyp_page_to_phys(p);
 
@@ -51,7 +51,7 @@ static struct hyp_page *__find_buddy_nocheck(struct hyp_pool *pool,
 /* Find a buddy page currently available for allocation */
 static struct hyp_page *__find_buddy_avail(struct hyp_pool *pool,
 					   struct hyp_page *p,
-					   unsigned short order)
+					   u8 order)
 {
 	struct hyp_page *buddy = __find_buddy_nocheck(pool, p, order);
 
@@ -94,8 +94,8 @@ static void __hyp_attach_page(struct hyp_pool *pool,
 			      struct hyp_page *p)
 {
 	phys_addr_t phys = hyp_page_to_phys(p);
-	unsigned short order = p->order;
 	struct hyp_page *buddy;
+	u8 order = p->order;
 
 	memset(hyp_page_to_virt(p), 0, PAGE_SIZE << p->order);
 
@@ -128,7 +128,7 @@ insert:
 
 static struct hyp_page *__hyp_extract_page(struct hyp_pool *pool,
 					   struct hyp_page *p,
-					   unsigned short order)
+					   u8 order)
 {
 	struct hyp_page *buddy;
 
@@ -182,7 +182,7 @@ void hyp_get_page(struct hyp_pool *pool, void *addr)
 
 void hyp_split_page(struct hyp_page *p)
 {
-	unsigned short order = p->order;
+	u8 order = p->order;
 	unsigned int i;
 
 	p->order = 0;
@@ -194,10 +194,10 @@ void hyp_split_page(struct hyp_page *p)
 	}
 }
 
-void *hyp_alloc_pages(struct hyp_pool *pool, unsigned short order)
+void *hyp_alloc_pages(struct hyp_pool *pool, u8 order)
 {
-	unsigned short i = order;
 	struct hyp_page *p;
+	u8 i = order;
 
 	hyp_spin_lock(&pool->lock);
 
-- 
GitLab


From a0f22aaf985346fca36ce38c58dc7e4b77409884 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Fri, 4 Mar 2022 16:48:32 +0000
Subject: [PATCH 4238/4878] ANDROID: KVM: arm64: Flag pages needing poisoning
 in hyp_vmemmap

During teardown, we currently walk the guest stage-2 page-table and
annotate all of its pages as 'pending poisoning' in the host stage-2.
Sadly, this requires a host stage-2 walk for every guest page, which is
rather inefficient and can lead to a long non-preemptible amount of time
spent at EL2. This gets particularly bad with IOMMUs as, in its current
form, the host stage-2 annotation triggers IOMMU updates.

To avoid the host stage-2 walks, let's annotate the pages pending
poisoning using a flag in the hyp_vmemmap instead.

Bug: 219180169
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I8894bd8e0b10ea8817763479412b540c0291e8f5
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  1 -
 arch/arm64/kvm/hyp/include/nvhe/memory.h      |  6 ++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 33 +++++--------------
 3 files changed, 15 insertions(+), 25 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 0118a3b6b943f..e9eef7c2cebba 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -58,7 +58,6 @@ typedef u32 pkvm_id;
 static const pkvm_id pkvm_host_id	= 0;
 static const pkvm_id pkvm_hyp_id	= (1 << 16);
 static const pkvm_id pkvm_ffa_id	= pkvm_hyp_id + 1; /* Secure world */
-static const pkvm_id pkvm_host_poison	= pkvm_ffa_id + 1;
 
 extern unsigned long hyp_nr_cpus;
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h
index 97da521cf3327..0e64650e2f101 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/memory.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h
@@ -7,6 +7,12 @@
 
 #include <linux/types.h>
 
+/*
+ * Accesses to struct hyp_page flags must be serialized by the host stage-2
+ * page-table lock due to the lack of atomics at EL2.
+ */
+#define HOST_PAGE_NEED_POISONING	BIT(0)
+
 struct hyp_page {
 	unsigned short refcount;
 	u8 order;
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 603d9e78ca1eb..8758bc56de561 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -286,17 +286,13 @@ static int reclaim_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 		void * const arg)
 {
 	kvm_pte_t pte = *ptep;
-	phys_addr_t phys;
+	struct hyp_page *page;
 
 	if (!kvm_pte_valid(pte))
 		return 0;
 
-	/*
-	 * Only update the host stage-2 -- we're about to tear-down the guest
-	 * stage-2 so no need to waste effort trying to keep it in sync.
-	 */
-	phys = kvm_pte_to_phys(pte);
-	BUG_ON(host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_host_poison));
+	page = hyp_phys_to_page(kvm_pte_to_phys(pte));
+	page->flags |= HOST_PAGE_NEED_POISONING;
 
 	return 0;
 }
@@ -520,11 +516,6 @@ static kvm_pte_t kvm_init_invalid_leaf_owner(pkvm_id owner_id)
 	return FIELD_PREP(KVM_INVALID_PTE_OWNER_MASK, owner_id);
 }
 
-static pkvm_id kvm_get_owner_id(kvm_pte_t pte)
-{
-	return FIELD_GET(KVM_INVALID_PTE_OWNER_MASK, pte);
-}
-
 int host_stage2_set_owner_locked(phys_addr_t addr, u64 size,
 				 pkvm_id owner_id)
 {
@@ -1864,7 +1855,7 @@ static int hyp_zero_page(phys_addr_t phys)
 int __pkvm_host_reclaim_page(u64 pfn)
 {
 	u64 addr = hyp_pfn_to_phys(pfn);
-	enum pkvm_page_state state;
+	struct hyp_page *page;
 	kvm_pte_t pte;
 	int ret;
 
@@ -1874,23 +1865,17 @@ int __pkvm_host_reclaim_page(u64 pfn)
 	if (ret)
 		goto unlock;
 
-	if (kvm_pte_valid(pte)) {
-		state = host_get_page_state(pte);
-		ret = (state == PKVM_PAGE_OWNED) ? 0 : -EPERM;
+	if (host_get_page_state(pte) == PKVM_PAGE_OWNED)
 		goto unlock;
-	}
 
-	switch (kvm_get_owner_id(pte)) {
-	case pkvm_host_id:
-		ret = 0;
-		break;
-	case pkvm_host_poison:
+	page = hyp_phys_to_page(addr);
+	if (page->flags & HOST_PAGE_NEED_POISONING) {
 		ret = hyp_zero_page(addr);
 		if (ret)
 			goto unlock;
+		page->flags &= ~HOST_PAGE_NEED_POISONING;
 		ret = host_stage2_set_owner_locked(addr, PAGE_SIZE, pkvm_host_id);
-		break;
-	default:
+	} else {
 		ret = -EPERM;
 	}
 
-- 
GitLab


From 07f483c8b8e5b728af5ec9956b0a54354d18095a Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Fri, 4 Mar 2022 17:25:02 +0000
Subject: [PATCH 4239/4878] Revert "ANDROID: gki_defconfig: Disable KVM_S2MPU
 temporarily"

This reverts commit 13d7c1f13e43fa36138bb8ef328cab127ce1319b.
S2MPUs are no longer called excessively often during guest teardown,
re-enable them.

Bug: 219180169
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I4ae94d359b352dfa1566a2b1a3536010a5d3761b
---
 arch/arm64/configs/gki_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index ea60da94ada12..857bf01d19b74 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -87,6 +87,7 @@ CONFIG_ARM_SCPI_PROTOCOL=y
 # CONFIG_EFI_ARMSTUB_DTB_LOADER is not set
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM=y
+CONFIG_KVM_S2MPU=y
 CONFIG_CRYPTO_SHA2_ARM64_CE=y
 CONFIG_CRYPTO_SHA512_ARM64_CE=y
 CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
-- 
GitLab


From 90d199284961b2ad9eec63ee277cb079f6ef9f74 Mon Sep 17 00:00:00 2001
From: Giuliano Procida <gprocida@google.com>
Date: Fri, 25 Feb 2022 14:11:40 +0000
Subject: [PATCH 4240/4878] ANDROID: GKI: remove TIDY_ABI=1 from build
 configuration

ABI XML is tidied unconditionality from Android 13.

Bug: 221390852
Change-Id: If2d6ad724450d8affbf302f449e408ae2b0d3b2a
Signed-off-by: Giuliano Procida <gprocida@google.com>
---
 build.config.gki.aarch64 | 1 -
 1 file changed, 1 deletion(-)

diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
index 28e114556c3e7..ad0078a7fee7f 100644
--- a/build.config.gki.aarch64
+++ b/build.config.gki.aarch64
@@ -7,7 +7,6 @@ Image.lz4
 "
 
 ABI_DEFINITION=android/abi_gki_aarch64.xml
-TIDY_ABI=1
 # Update BUILD.bazel, define_common_kernels() if the list differs from
 # android/abi_gki_aarch64* in the filesystem.
 KMI_SYMBOL_LIST=android/abi_gki_aarch64
-- 
GitLab


From 320ffbea77113f237c956bd2c17a8ca7383a8925 Mon Sep 17 00:00:00 2001
From: Vijayanand Jitta <quic_vjitta@quicinc.com>
Date: Wed, 2 Mar 2022 22:25:21 +0530
Subject: [PATCH 4241/4878] ANDROID: mm: Fix page table lookup in speculative
 fault path

In speculative fault path, while doing page table lookup, offset
is obtained at each level and value at that offset is read and
checks are perfomed on it, later to get next level offset we read
from previous level offset again. A concurrent page table reclaimation
operation could result in change in value at this offset, and we go
ahead and access it, this would result in reading an invalid entry.
Fix this by reading from previous level offset again and comparing
before performing next level access.

Bug: 221005439
Change-Id: I66b3d24ae79c7ee5ccce4ba7a94f028f4cf3fda0
Signed-off-by: Vijayanand Jitta <quic_vjitta@quicinc.com>
(cherry picked from commit a817d6ed8746d9de8960acde229c3a9dfa4d465a)
---
 mm/memory.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mm/memory.c b/mm/memory.c
index 4d7add8fc2958..5bfdb173b41ae 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5021,11 +5021,15 @@ static vm_fault_t ___handle_speculative_fault(struct mm_struct *mm,
 		goto out_walk;
 
 	p4d = p4d_offset(pgd, address);
+	if (pgd_val(READ_ONCE(*pgd)) != pgd_val(pgdval))
+		goto out_walk;
 	p4dval = READ_ONCE(*p4d);
 	if (p4d_none(p4dval) || unlikely(p4d_bad(p4dval)))
 		goto out_walk;
 
 	vmf.pud = pud_offset(p4d, address);
+	if (p4d_val(READ_ONCE(*p4d)) != p4d_val(p4dval))
+		goto out_walk;
 	pudval = READ_ONCE(*vmf.pud);
 	if (pud_none(pudval) || unlikely(pud_bad(pudval)))
 		goto out_walk;
@@ -5035,6 +5039,8 @@ static vm_fault_t ___handle_speculative_fault(struct mm_struct *mm,
 		goto out_walk;
 
 	vmf.pmd = pmd_offset(vmf.pud, address);
+	if (pud_val(READ_ONCE(*vmf.pud)) != pud_val(pudval))
+		goto out_walk;
 	vmf.orig_pmd = READ_ONCE(*vmf.pmd);
 	/*
 	 * pmd_none could mean that a hugepage collapse is in progress
@@ -5062,6 +5068,11 @@ static vm_fault_t ___handle_speculative_fault(struct mm_struct *mm,
 	 */
 
 	vmf.pte = pte_offset_map(vmf.pmd, address);
+	if (pmd_val(READ_ONCE(*vmf.pmd)) != pmd_val(vmf.orig_pmd)) {
+		pte_unmap(vmf.pte);
+		vmf.pte = NULL;
+		goto out_walk;
+	}
 	vmf.orig_pte = READ_ONCE(*vmf.pte);
 	barrier(); /* See comment in handle_pte_fault() */
 	if (pte_none(vmf.orig_pte)) {
-- 
GitLab


From e7f9c883b9c712b8140f42bc898cc090417b9586 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 19 Oct 2021 15:01:43 +0800
Subject: [PATCH 4242/4878] UPSTREAM: virtio-blk: validate num_queues during
 probe

If an untrusted device neogitates BLK_F_MQ but advertises a zero
num_queues, the driver may end up trying to allocating zero size
buffers where ZERO_SIZE_PTR is returned which may pass the checking
against the NULL. This will lead unexpected results.

Fixing this by failing the probe in this case.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211019070152.8236-2-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 6ae6ff6f6e7d2f304a12a53af8298e4f16ad633e)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I8a4dbd80bdf8e7d41013e43d069b04af9c35e200
---
 drivers/block/virtio_blk.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 2670306a297d0..5d91cd05b11df 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -509,6 +509,10 @@ static int init_vq(struct virtio_blk *vblk)
 				   &num_vqs);
 	if (err)
 		num_vqs = 1;
+	if (!err && !num_vqs) {
+		dev_err(&vdev->dev, "MQ advertisted but zero queues reported\n");
+		return -EINVAL;
+	}
 
 	num_vqs = min_t(unsigned int, nr_cpu_ids, num_vqs);
 
-- 
GitLab


From b477d6bb115bfd243d7527fdd06d5924059b7b17 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 19 Oct 2021 15:01:44 +0800
Subject: [PATCH 4243/4878] UPSTREAM: virtio_console: validate max_nr_ports
 before trying to use it

We calculate nr_ports based on the max_nr_ports:

nr_queues = use_multiport(portdev) ? (nr_ports + 1) * 2 : 2;

If the device advertises a large max_nr_ports, we will end up with a
integer overflow. Fixing this by validating the max_nr_ports and fail
the probe for invalid max_nr_ports in this case.

Cc: Amit Shah <amit@kernel.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211019070152.8236-3-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 28962ec595d701ec9d39369f9774895dfa408273)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: Idb5462a1268d2bde5f867f5455da0957ca68035a
---
 drivers/char/virtio_console.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 673522874cec4..a5e9d1a8a53c2 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -28,6 +28,7 @@
 #include "../tty/hvc/hvc_console.h"
 
 #define is_rproc_enabled IS_ENABLED(CONFIG_REMOTEPROC)
+#define VIRTCONS_MAX_PORTS 0x8000
 
 /*
  * This is a global struct for storing common data for all the devices
@@ -2039,6 +2040,14 @@ static int virtcons_probe(struct virtio_device *vdev)
 	    virtio_cread_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
 				 struct virtio_console_config, max_nr_ports,
 				 &portdev->max_nr_ports) == 0) {
+		if (portdev->max_nr_ports == 0 ||
+		    portdev->max_nr_ports > VIRTCONS_MAX_PORTS) {
+			dev_err(&vdev->dev,
+				"Invalidate max_nr_ports %d",
+				portdev->max_nr_ports);
+			err = -EINVAL;
+			goto free;
+		}
 		multiport = true;
 	}
 
-- 
GitLab


From 46f6d66219b5d68854be1c53ce438d2112b2fe34 Mon Sep 17 00:00:00 2001
From: Benjamin Beichler <benjamin.beichler@uni-rostock.de>
Date: Tue, 11 Jan 2022 22:13:26 +0000
Subject: [PATCH 4244/4878] mac80211_hwsim: report NOACK frames in tx_status

[ Upstream commit 42a79960ffa50bfe9e0bf5d6280be89bf563a5dd ]

Add IEEE80211_TX_STAT_NOACK_TRANSMITTED to tx_status flags to have proper
statistics for non-acked frames.

Signed-off-by: Benjamin Beichler <benjamin.beichler@uni-rostock.de>
Link: https://lore.kernel.org/r/20220111221327.1499881-1-benjamin.beichler@uni-rostock.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mac80211_hwsim.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index b793d61d15d27..0122585a1e500 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -3567,6 +3567,10 @@ static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2,
 		}
 		txi->flags |= IEEE80211_TX_STAT_ACK;
 	}
+
+	if (hwsim_flags & HWSIM_TX_CTL_NO_ACK)
+		txi->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
+
 	ieee80211_tx_status_irqsafe(data2->hw, skb);
 	return 0;
 out:
-- 
GitLab


From 13f0ea8d11934a017f5c353fa049a09de3c37ec0 Mon Sep 17 00:00:00 2001
From: JaeMan Park <jaeman@google.com>
Date: Thu, 13 Jan 2022 15:02:35 +0900
Subject: [PATCH 4245/4878] mac80211_hwsim: initialize ieee80211_tx_info at
 hw_scan_work

[ Upstream commit cacfddf82baf1470e5741edeecb187260868f195 ]

In mac80211_hwsim, the probe_req frame is created and sent while
scanning. It is sent with ieee80211_tx_info which is not initialized.
Uninitialized ieee80211_tx_info can cause problems when using
mac80211_hwsim with wmediumd. wmediumd checks the tx_rates field of
ieee80211_tx_info and doesn't relay probe_req frame to other clients
even if it is a broadcasting message.

Call ieee80211_tx_prepare_skb() to initialize ieee80211_tx_info for
the probe_req that is created by hw_scan_work in mac80211_hwsim.

Signed-off-by: JaeMan Park <jaeman@google.com>
Link: https://lore.kernel.org/r/20220113060235.546107-1-jaeman@google.com
[fix memory leak]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mac80211_hwsim.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 0122585a1e500..cc550ba0c9dfe 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2264,6 +2264,15 @@ static void hw_scan_work(struct work_struct *work)
 			if (req->ie_len)
 				skb_put_data(probe, req->ie, req->ie_len);
 
+			if (!ieee80211_tx_prepare_skb(hwsim->hw,
+						      hwsim->hw_scan_vif,
+						      probe,
+						      hwsim->tmp_chan->band,
+						      NULL)) {
+				kfree_skb(probe);
+				continue;
+			}
+
 			local_bh_disable();
 			mac80211_hwsim_tx_frame(hwsim->hw, probe,
 						hwsim->tmp_chan);
-- 
GitLab


From 11956c6eeb5a29cdb0747fca6f0b8fb997a8aef2 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 23 Feb 2018 22:42:31 +0100
Subject: [PATCH 4246/4878] i2c: bcm2835: Avoid clock stretching timeouts

[ Upstream commit 9495b9b31abe525ebd93da58de2c88b9f66d3a0e ]

The CLKT register contains at poweron 0x40, which at our typical 100kHz
bus rate means .64ms. But there is no specified limit to how long devices
should be able to stretch the clocks, so just disable the timeout. We
still have a timeout wrapping the entire transfer.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
BugLink: https://github.com/raspberrypi/linux/issues/3064
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-bcm2835.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c
index 37443edbf7546..ad3b124a2e376 100644
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -23,6 +23,11 @@
 #define BCM2835_I2C_FIFO	0x10
 #define BCM2835_I2C_DIV		0x14
 #define BCM2835_I2C_DEL		0x18
+/*
+ * 16-bit field for the number of SCL cycles to wait after rising SCL
+ * before deciding the slave is not responding. 0 disables the
+ * timeout detection.
+ */
 #define BCM2835_I2C_CLKT	0x1c
 
 #define BCM2835_I2C_C_READ	BIT(0)
@@ -477,6 +482,12 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
 	adap->dev.of_node = pdev->dev.of_node;
 	adap->quirks = of_device_get_match_data(&pdev->dev);
 
+	/*
+	 * Disable the hardware clock stretching timeout. SMBUS
+	 * specifies a limit for how long the device can stretch the
+	 * clock, but core I2C doesn't.
+	 */
+	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_CLKT, 0);
 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0);
 
 	ret = i2c_add_adapter(adap);
-- 
GitLab


From 0b050b7a0d733526c34cd4cf1e42afee34efac5d Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Mon, 7 Feb 2022 17:29:59 +0200
Subject: [PATCH 4247/4878] ASoC: rt5668: do not block workqueue if card is
 unbound
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit a6d78661dc903d90a327892bbc34268f3a5f4b9c ]

The current rt5668_jack_detect_handler() assumes the component
and card will always show up and implements an infinite usleep
loop waiting for them to show up.

This does not hold true if a codec interrupt (or other
event) occurs when the card is unbound. The codec driver's
remove  or shutdown functions cannot cancel the workqueue due
to the wait loop. As a result, code can either end up blocking
the workqueue, or hit a kernel oops when the card is freed.

Fix the issue by rescheduling the jack detect handler in
case the card is not ready. In case card never shows up,
the shutdown/remove/suspend calls can now cancel the detect
task.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20220207153000.3452802-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt5668.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/rt5668.c b/sound/soc/codecs/rt5668.c
index bc69adc9c8b70..e625df57c69e5 100644
--- a/sound/soc/codecs/rt5668.c
+++ b/sound/soc/codecs/rt5668.c
@@ -1022,11 +1022,13 @@ static void rt5668_jack_detect_handler(struct work_struct *work)
 		container_of(work, struct rt5668_priv, jack_detect_work.work);
 	int val, btn_type;
 
-	while (!rt5668->component)
-		usleep_range(10000, 15000);
-
-	while (!rt5668->component->card->instantiated)
-		usleep_range(10000, 15000);
+	if (!rt5668->component || !rt5668->component->card ||
+	    !rt5668->component->card->instantiated) {
+		/* card not yet ready, try later */
+		mod_delayed_work(system_power_efficient_wq,
+				 &rt5668->jack_detect_work, msecs_to_jiffies(15));
+		return;
+	}
 
 	mutex_lock(&rt5668->calibrate_mutex);
 
-- 
GitLab


From 467d664e5fff7a4069ab5fd2fad95773d3df39e9 Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Date: Mon, 7 Feb 2022 17:30:00 +0200
Subject: [PATCH 4248/4878] ASoC: rt5682: do not block workqueue if card is
 unbound
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 4c33de0673ced9c7c37b3bbd9bfe0fda72340b2a ]

The current rt5682_jack_detect_handler() assumes the component
and card will always show up and implements an infinite usleep
loop waiting for them to show up.

This does not hold true if a codec interrupt (or other
event) occurs when the card is unbound. The codec driver's
remove  or shutdown functions cannot cancel the workqueue due
to the wait loop. As a result, code can either end up blocking
the workqueue, or hit a kernel oops when the card is freed.

Fix the issue by rescheduling the jack detect handler in
case the card is not ready. In case card never shows up,
the shutdown/remove/suspend calls can now cancel the detect
task.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20220207153000.3452802-3-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt5682.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index aaef76cc151fa..113ed00ddf1e5 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -1081,11 +1081,13 @@ void rt5682_jack_detect_handler(struct work_struct *work)
 		container_of(work, struct rt5682_priv, jack_detect_work.work);
 	int val, btn_type;
 
-	while (!rt5682->component)
-		usleep_range(10000, 15000);
-
-	while (!rt5682->component->card->instantiated)
-		usleep_range(10000, 15000);
+	if (!rt5682->component || !rt5682->component->card ||
+	    !rt5682->component->card->instantiated) {
+		/* card not yet ready, try later */
+		mod_delayed_work(system_power_efficient_wq,
+				 &rt5682->jack_detect_work, msecs_to_jiffies(15));
+		return;
+	}
 
 	mutex_lock(&rt5682->calibrate_mutex);
 
-- 
GitLab


From 6e7015d982ee8defa4b45e652b177800bb38c213 Mon Sep 17 00:00:00 2001
From: Oliver Barta <oliver.barta@aptiv.com>
Date: Tue, 8 Feb 2022 09:46:45 +0100
Subject: [PATCH 4249/4878] regulator: core: fix false positive in
 regulator_late_cleanup()

[ Upstream commit 4e2a354e3775870ca823f1fb29bbbffbe11059a6 ]

The check done by regulator_late_cleanup() to detect whether a regulator
is on was inconsistent with the check done by _regulator_is_enabled().
While _regulator_is_enabled() takes the enable GPIO into account,
regulator_late_cleanup() was not doing that.

This resulted in a false positive, e.g. when a GPIO-controlled fixed
regulator was used, which was not enabled at boot time, e.g.

reg_disp_1v2: reg_disp_1v2 {
	compatible = "regulator-fixed";
	regulator-name = "display_1v2";
	regulator-min-microvolt = <1200000>;
	regulator-max-microvolt = <1200000>;
	gpio = <&tlmm 148 0>;
	enable-active-high;
};

Such regulator doesn't have an is_enabled() operation. Nevertheless
it's state can be determined based on the enable GPIO. The check in
regulator_late_cleanup() wrongly assumed that the regulator is on and
tried to disable it.

Signed-off-by: Oliver Barta <oliver.barta@aptiv.com>
Link: https://lore.kernel.org/r/20220208084645.8686-1-oliver.barta@aptiv.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/regulator/core.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 043b5f63b94a1..2c48e55c4104e 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5862,9 +5862,8 @@ core_initcall(regulator_init);
 static int regulator_late_cleanup(struct device *dev, void *data)
 {
 	struct regulator_dev *rdev = dev_to_rdev(dev);
-	const struct regulator_ops *ops = rdev->desc->ops;
 	struct regulation_constraints *c = rdev->constraints;
-	int enabled, ret;
+	int ret;
 
 	if (c && c->always_on)
 		return 0;
@@ -5877,14 +5876,8 @@ static int regulator_late_cleanup(struct device *dev, void *data)
 	if (rdev->use_count)
 		goto unlock;
 
-	/* If we can't read the status assume it's always on. */
-	if (ops->is_enabled)
-		enabled = ops->is_enabled(rdev);
-	else
-		enabled = 1;
-
-	/* But if reading the status failed, assume that it's off. */
-	if (enabled <= 0)
+	/* If reading the status failed, assume that it's off. */
+	if (_regulator_is_enabled(rdev) <= 0)
 		goto unlock;
 
 	if (have_full_constraints()) {
-- 
GitLab


From 5d4b00e053fc67d1517684050f7720978dc92c48 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Exp=C3=B3sito?= <jose.exposito89@gmail.com>
Date: Tue, 8 Feb 2022 09:59:16 -0800
Subject: [PATCH 4250/4878] Input: clear BTN_RIGHT/MIDDLE on buttonpads
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 37ef4c19b4c659926ce65a7ac709ceaefb211c40 ]

Buttonpads are expected to map the INPUT_PROP_BUTTONPAD property bit
and the BTN_LEFT key bit.

As explained in the specification, where a device has a button type
value of 0 (click-pad) or 1 (pressure-pad) there should not be
discrete buttons:
https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/touchpad-windows-precision-touchpad-collection#device-capabilities-feature-report

However, some drivers map the BTN_RIGHT and/or BTN_MIDDLE key bits even
though the device is a buttonpad and therefore does not have those
buttons.

This behavior has forced userspace applications like libinput to
implement different workarounds and quirks to detect buttonpads and
offer to the user the right set of features and configuration options.
For more information:
https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/726

In order to avoid this issue clear the BTN_RIGHT and BTN_MIDDLE key
bits when the input device is register if the INPUT_PROP_BUTTONPAD
property bit is set.

Notice that this change will not affect udev because it does not check
for buttons. See systemd/src/udev/udev-builtin-input_id.c.

List of known affected hardware:

 - Chuwi AeroBook Plus
 - Chuwi Gemibook
 - Framework Laptop
 - GPD Win Max
 - Huawei MateBook 2020
 - Prestigio Smartbook 141 C2
 - Purism Librem 14v1
 - StarLite Mk II   - AMI firmware
 - StarLite Mk II   - Coreboot firmware
 - StarLite Mk III  - AMI firmware
 - StarLite Mk III  - Coreboot firmware
 - StarLabTop Mk IV - AMI firmware
 - StarLabTop Mk IV - Coreboot firmware
 - StarBook Mk V

Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Link: https://lore.kernel.org/r/20220208174806.17183-1-jose.exposito89@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/input.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 3cfd2c18eebd9..ff9dc37eff345 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -2179,6 +2179,12 @@ int input_register_device(struct input_dev *dev)
 	/* KEY_RESERVED is not supposed to be transmitted to userspace. */
 	__clear_bit(KEY_RESERVED, dev->keybit);
 
+	/* Buttonpads should not map BTN_RIGHT and/or BTN_MIDDLE. */
+	if (test_bit(INPUT_PROP_BUTTONPAD, dev->propbit)) {
+		__clear_bit(BTN_RIGHT, dev->keybit);
+		__clear_bit(BTN_MIDDLE, dev->keybit);
+	}
+
 	/* Make sure that bitmasks not mentioned in dev->evbit are clean. */
 	input_cleanse_bitmasks(dev);
 
-- 
GitLab


From 6d4985b8a0bf716dba5ae2caefcd906e9ca3df03 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 3 Feb 2022 09:24:45 +0000
Subject: [PATCH 4251/4878] KVM: arm64: vgic: Read HW interrupt pending state
 from the HW

[ Upstream commit 5bfa685e62e9ba93c303a9a8db646c7228b9b570 ]

It appears that a read access to GIC[DR]_I[CS]PENDRn doesn't always
result in the pending interrupts being accurately reported if they are
mapped to a HW interrupt. This is particularily visible when acking
the timer interrupt and reading the GICR_ISPENDR1 register immediately
after, for example (the interrupt appears as not-pending while it really
is...).

This is because a HW interrupt has its 'active and pending state' kept
in the *physical* distributor, and not in the virtual one, as mandated
by the spec (this is what allows the direct deactivation). The virtual
distributor only caries the pending and active *states* (note the
plural, as these are two independent and non-overlapping states).

Fix it by reading the HW state back, either from the timer itself or
from the distributor if necessary.

Reported-by: Ricardo Koller <ricarkol@google.com>
Tested-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Ricardo Koller <ricarkol@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220208123726.3604198-1-maz@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kvm/vgic/vgic-mmio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kvm/vgic/vgic-mmio.c b/arch/arm64/kvm/vgic/vgic-mmio.c
index b2d73fc0d1ef4..9e1459534ce54 100644
--- a/arch/arm64/kvm/vgic/vgic-mmio.c
+++ b/arch/arm64/kvm/vgic/vgic-mmio.c
@@ -248,6 +248,8 @@ unsigned long vgic_mmio_read_pending(struct kvm_vcpu *vcpu,
 						    IRQCHIP_STATE_PENDING,
 						    &val);
 			WARN_RATELIMIT(err, "IRQ %d", irq->host_irq);
+		} else if (vgic_irq_is_mapped_level(irq)) {
+			val = vgic_get_phys_line_level(irq);
 		} else {
 			val = irq_is_pending(irq);
 		}
-- 
GitLab


From e3850e211df6817e7a6c3999080a8bc4a63092c0 Mon Sep 17 00:00:00 2001
From: Hangyu Hua <hbh25y@gmail.com>
Date: Fri, 11 Feb 2022 12:55:10 +0800
Subject: [PATCH 4252/4878] tipc: fix a bit overflow in tipc_crypto_key_rcv()

[ Upstream commit 143de8d97d79316590475dc2a84513c63c863ddf ]

msg_data_sz return a 32bit value, but size is 16bit. This may lead to a
bit overflow.

Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/crypto.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index d8a2f424786fc..6f91b9a306dc3 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -2280,7 +2280,7 @@ static bool tipc_crypto_key_rcv(struct tipc_crypto *rx, struct tipc_msg *hdr)
 	struct tipc_crypto *tx = tipc_net(rx->net)->crypto_tx;
 	struct tipc_aead_key *skey = NULL;
 	u16 key_gen = msg_key_gen(hdr);
-	u16 size = msg_data_sz(hdr);
+	u32 size = msg_data_sz(hdr);
 	u8 *data = msg_data(hdr);
 	unsigned int keylen;
 
-- 
GitLab


From df9db1a2af37f39ad1653c7b9b0d275d72d0bc67 Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <lsahlber@redhat.com>
Date: Fri, 11 Feb 2022 02:59:15 +1000
Subject: [PATCH 4253/4878] cifs: fix double free race when mount fails in
 cifs_get_root()

[ Upstream commit 3d6cc9898efdfb062efb74dc18cfc700e082f5d5 ]

When cifs_get_root() fails during cifs_smb3_do_mount() we call
deactivate_locked_super() which eventually will call delayed_free() which
will free the context.
In this situation we should not proceed to enter the out: section in
cifs_smb3_do_mount() and free the same resources a second time.

[Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60
[Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0

[Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G           OE     5.17.0-rc3+ #4
[Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019
[Thu Feb 10 12:59:06 2022] Call Trace:
[Thu Feb 10 12:59:06 2022]  <IRQ>
[Thu Feb 10 12:59:06 2022]  dump_stack_lvl+0x5d/0x78
[Thu Feb 10 12:59:06 2022]  print_address_description.constprop.0+0x24/0x150
[Thu Feb 10 12:59:06 2022]  ? rcu_cblist_dequeue+0x32/0x60
[Thu Feb 10 12:59:06 2022]  kasan_report.cold+0x7d/0x117
[Thu Feb 10 12:59:06 2022]  ? rcu_cblist_dequeue+0x32/0x60
[Thu Feb 10 12:59:06 2022]  __asan_load8+0x86/0xa0
[Thu Feb 10 12:59:06 2022]  rcu_cblist_dequeue+0x32/0x60
[Thu Feb 10 12:59:06 2022]  rcu_core+0x547/0xca0
[Thu Feb 10 12:59:06 2022]  ? call_rcu+0x3c0/0x3c0
[Thu Feb 10 12:59:06 2022]  ? __this_cpu_preempt_check+0x13/0x20
[Thu Feb 10 12:59:06 2022]  ? lock_is_held_type+0xea/0x140
[Thu Feb 10 12:59:06 2022]  rcu_core_si+0xe/0x10
[Thu Feb 10 12:59:06 2022]  __do_softirq+0x1d4/0x67b
[Thu Feb 10 12:59:06 2022]  __irq_exit_rcu+0x100/0x150
[Thu Feb 10 12:59:06 2022]  irq_exit_rcu+0xe/0x30
[Thu Feb 10 12:59:06 2022]  sysvec_hyperv_stimer0+0x9d/0xc0
...
[Thu Feb 10 12:59:07 2022] Freed by task 58179:
[Thu Feb 10 12:59:07 2022]  kasan_save_stack+0x26/0x50
[Thu Feb 10 12:59:07 2022]  kasan_set_track+0x25/0x30
[Thu Feb 10 12:59:07 2022]  kasan_set_free_info+0x24/0x40
[Thu Feb 10 12:59:07 2022]  ____kasan_slab_free+0x137/0x170
[Thu Feb 10 12:59:07 2022]  __kasan_slab_free+0x12/0x20
[Thu Feb 10 12:59:07 2022]  slab_free_freelist_hook+0xb3/0x1d0
[Thu Feb 10 12:59:07 2022]  kfree+0xcd/0x520
[Thu Feb 10 12:59:07 2022]  cifs_smb3_do_mount+0x149/0xbe0 [cifs]
[Thu Feb 10 12:59:07 2022]  smb3_get_tree+0x1a0/0x2e0 [cifs]
[Thu Feb 10 12:59:07 2022]  vfs_get_tree+0x52/0x140
[Thu Feb 10 12:59:07 2022]  path_mount+0x635/0x10c0
[Thu Feb 10 12:59:07 2022]  __x64_sys_mount+0x1bf/0x210
[Thu Feb 10 12:59:07 2022]  do_syscall_64+0x5c/0xc0
[Thu Feb 10 12:59:07 2022]  entry_SYSCALL_64_after_hwframe+0x44/0xae

[Thu Feb 10 12:59:07 2022] Last potentially related work creation:
[Thu Feb 10 12:59:07 2022]  kasan_save_stack+0x26/0x50
[Thu Feb 10 12:59:07 2022]  __kasan_record_aux_stack+0xb6/0xc0
[Thu Feb 10 12:59:07 2022]  kasan_record_aux_stack_noalloc+0xb/0x10
[Thu Feb 10 12:59:07 2022]  call_rcu+0x76/0x3c0
[Thu Feb 10 12:59:07 2022]  cifs_umount+0xce/0xe0 [cifs]
[Thu Feb 10 12:59:07 2022]  cifs_kill_sb+0xc8/0xe0 [cifs]
[Thu Feb 10 12:59:07 2022]  deactivate_locked_super+0x5d/0xd0
[Thu Feb 10 12:59:07 2022]  cifs_smb3_do_mount+0xab9/0xbe0 [cifs]
[Thu Feb 10 12:59:07 2022]  smb3_get_tree+0x1a0/0x2e0 [cifs]
[Thu Feb 10 12:59:07 2022]  vfs_get_tree+0x52/0x140
[Thu Feb 10 12:59:07 2022]  path_mount+0x635/0x10c0
[Thu Feb 10 12:59:07 2022]  __x64_sys_mount+0x1bf/0x210
[Thu Feb 10 12:59:07 2022]  do_syscall_64+0x5c/0xc0
[Thu Feb 10 12:59:07 2022]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Reported-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/cifsfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index f0ed29a9a6f11..aa5a4d759ca23 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -864,6 +864,7 @@ cifs_smb3_do_mount(struct file_system_type *fs_type,
 
 out_super:
 	deactivate_locked_super(sb);
+	return root;
 out:
 	cifs_cleanup_volume_info(volume_info);
 	return root;
-- 
GitLab


From 37b06d5ebf5cb0a8654a16a9c46c43adb1beec80 Mon Sep 17 00:00:00 2001
From: Sherry Yang <sherry.yang@oracle.com>
Date: Thu, 10 Feb 2022 12:30:49 -0800
Subject: [PATCH 4254/4878] selftests/seccomp: Fix seccomp failure by adding
 missing headers

[ Upstream commit 21bffcb76ee2fbafc7d5946cef10abc9df5cfff7 ]

seccomp_bpf failed on tests 47 global.user_notification_filter_empty
and 48 global.user_notification_filter_empty_threaded when it's
tested on updated kernel but with old kernel headers. Because old
kernel headers don't have definition of macro __NR_clone3 which is
required for these two tests. Since under selftests/, we can install
headers once for all tests (the default INSTALL_HDR_PATH is
usr/include), fix it by adding usr/include to the list of directories
to be searched. Use "-isystem" to indicate it's a system directory as
the real kernel headers directories are.

Signed-off-by: Sherry Yang <sherry.yang@oracle.com>
Tested-by: Sherry Yang <sherry.yang@oracle.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/seccomp/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
index 0ebfe8b0e147f..585f7a0c10cbe 100644
--- a/tools/testing/selftests/seccomp/Makefile
+++ b/tools/testing/selftests/seccomp/Makefile
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-CFLAGS += -Wl,-no-as-needed -Wall
+CFLAGS += -Wl,-no-as-needed -Wall -isystem ../../../../usr/include/
 LDFLAGS += -lpthread
 
 TEST_GEN_PROGS := seccomp_bpf seccomp_benchmark
-- 
GitLab


From 9d6285e6324121592bb7a7ddecb78c4103802751 Mon Sep 17 00:00:00 2001
From: Yongzhi Liu <lyz_cs@pku.edu.cn>
Date: Sat, 15 Jan 2022 21:34:56 -0800
Subject: [PATCH 4255/4878] dmaengine: shdma: Fix runtime PM imbalance on error

[ Upstream commit 455896c53d5b803733ddd84e1bf8a430644439b6 ]

pm_runtime_get_() increments the runtime PM usage counter even
when it returns an error code, thus a matching decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn>
Link: https://lore.kernel.org/r/1642311296-87020-1-git-send-email-lyz_cs@pku.edu.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/sh/shdma-base.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
index 7f72b3f4cd1ae..19ac95c0098f0 100644
--- a/drivers/dma/sh/shdma-base.c
+++ b/drivers/dma/sh/shdma-base.c
@@ -115,8 +115,10 @@ static dma_cookie_t shdma_tx_submit(struct dma_async_tx_descriptor *tx)
 		ret = pm_runtime_get(schan->dev);
 
 		spin_unlock_irq(&schan->chan_lock);
-		if (ret < 0)
+		if (ret < 0) {
 			dev_err(schan->dev, "%s(): GET = %d\n", __func__, ret);
+			pm_runtime_put(schan->dev);
+		}
 
 		pm_runtime_barrier(schan->dev);
 
-- 
GitLab


From 57c333ad8c2829cf92cf1a3edd5742038b021a83 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@kernel.org>
Date: Sat, 12 Feb 2022 20:45:48 +0100
Subject: [PATCH 4256/4878] i2c: cadence: allow COMPILE_TEST

[ Upstream commit 0b0dcb3882c8f08bdeafa03adb4487e104d26050 ]

Driver builds fine with COMPILE_TEST. Enable it for wider test coverage
and easier maintenance.

Signed-off-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 7e693dcbdd196..d5fc8ec025020 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -488,7 +488,7 @@ config I2C_BRCMSTB
 
 config I2C_CADENCE
 	tristate "Cadence I2C Controller"
-	depends on ARCH_ZYNQ || ARM64 || XTENSA
+	depends on ARCH_ZYNQ || ARM64 || XTENSA || COMPILE_TEST
 	help
 	  Say yes here to select Cadence I2C Host Controller. This controller is
 	  e.g. used by Xilinx Zynq.
-- 
GitLab


From 16f903afbafb9f505606e19e6e36ac5d7be96910 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@kernel.org>
Date: Sat, 12 Feb 2022 20:47:07 +0100
Subject: [PATCH 4257/4878] i2c: qup: allow COMPILE_TEST

[ Upstream commit 5de717974005fcad2502281e9f82e139ca91f4bb ]

Driver builds fine with COMPILE_TEST. Enable it for wider test coverage
and easier maintenance.

Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index d5fc8ec025020..ea474b16e3aac 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -926,7 +926,7 @@ config I2C_QCOM_GENI
 
 config I2C_QUP
 	tristate "Qualcomm QUP based I2C controller"
-	depends on ARCH_QCOM
+	depends on ARCH_QCOM || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the Qualcomm SoCs.
-- 
GitLab


From 00d5ac05af3a126e1fbd11a3309478b2b3b0296e Mon Sep 17 00:00:00 2001
From: Daniele Palmas <dnlplm@gmail.com>
Date: Tue, 15 Feb 2022 12:13:35 +0100
Subject: [PATCH 4258/4878] net: usb: cdc_mbim: avoid altsetting toggling for
 Telit FN990

[ Upstream commit 21e8a96377e6b6debae42164605bf9dcbe5720c5 ]

Add quirk CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE for Telit FN990
0x1071 composition in order to avoid bind error.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/cdc_mbim.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 77ac5a721e7b6..414341c9cf5ae 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -658,6 +658,11 @@ static const struct usb_device_id mbim_devs[] = {
 	  .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle,
 	},
 
+	/* Telit FN990 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1071, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+	  .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle,
+	},
+
 	/* default entry */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info_zlp,
-- 
GitLab


From c13159a588818a1d2cd6519f4d3b6f7e17a9ffbd Mon Sep 17 00:00:00 2001
From: Hangyu Hua <hbh25y@gmail.com>
Date: Sat, 1 Jan 2022 01:21:37 +0800
Subject: [PATCH 4259/4878] usb: gadget: don't release an existing dev->buf

commit 89f3594d0de58e8a57d92d497dea9fee3d4b9cda upstream.

dev->buf does not need to be released if it already exists before
executing dev_config.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20211231172138.7993-2-hbh25y@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/legacy/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 217d2b66fa514..74fb499219fa4 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -1828,8 +1828,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	spin_lock_irq (&dev->lock);
 	value = -EINVAL;
 	if (dev->buf) {
+		spin_unlock_irq(&dev->lock);
 		kfree(kbuf);
-		goto fail;
+		return value;
 	}
 	dev->buf = kbuf;
 
-- 
GitLab


From fdd64084e405544c5c11841ca9261785c988e2a1 Mon Sep 17 00:00:00 2001
From: Hangyu Hua <hbh25y@gmail.com>
Date: Sat, 1 Jan 2022 01:21:38 +0800
Subject: [PATCH 4260/4878] usb: gadget: clear related members when goto fail

commit 501e38a5531efbd77d5c73c0ba838a889bfc1d74 upstream.

dev->config and dev->hs_config and dev->dev need to be cleaned if
dev_config fails to avoid UAF.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Link: https://lore.kernel.org/r/20211231172138.7993-3-hbh25y@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/legacy/inode.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 74fb499219fa4..454860d52ce77 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -1877,8 +1877,8 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 
 	value = usb_gadget_probe_driver(&gadgetfs_driver);
 	if (value != 0) {
-		kfree (dev->buf);
-		dev->buf = NULL;
+		spin_lock_irq(&dev->lock);
+		goto fail;
 	} else {
 		/* at this point "good" hardware has for the first time
 		 * let the USB the host see us.  alternatively, if users
@@ -1895,6 +1895,9 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	return value;
 
 fail:
+	dev->config = NULL;
+	dev->hs_config = NULL;
+	dev->dev = NULL;
 	spin_unlock_irq (&dev->lock);
 	pr_debug ("%s: %s fail %zd, %p\n", shortname, __func__, value, dev);
 	kfree (dev->buf);
-- 
GitLab


From 1b810d5cb6ce6fb75f32094724cd2e3a720a89b2 Mon Sep 17 00:00:00 2001
From: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Date: Tue, 2 Nov 2021 22:23:58 +0100
Subject: [PATCH 4261/4878] exfat: reuse exfat_inode_info variable instead of
 calling EXFAT_I()

[ Upstream commit 7dee6f57d7f22a89dd214518c778aec448270d4c ]

Also add a local "struct exfat_inode_info *ei" variable to
exfat_truncate() to simplify the code.

Signed-off-by: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/exfat/file.c  | 14 +++++++-------
 fs/exfat/inode.c |  9 ++++-----
 fs/exfat/namei.c |  6 +++---
 fs/exfat/super.c |  6 +++---
 4 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index a92478eabfa4e..6258c5da3060b 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -109,8 +109,7 @@ int __exfat_truncate(struct inode *inode, loff_t new_size)
 	exfat_set_volume_dirty(sb);
 
 	num_clusters_new = EXFAT_B_TO_CLU_ROUND_UP(i_size_read(inode), sbi);
-	num_clusters_phys =
-		EXFAT_B_TO_CLU_ROUND_UP(EXFAT_I(inode)->i_size_ondisk, sbi);
+	num_clusters_phys = EXFAT_B_TO_CLU_ROUND_UP(ei->i_size_ondisk, sbi);
 
 	exfat_chain_set(&clu, ei->start_clu, num_clusters_phys, ei->flags);
 
@@ -227,12 +226,13 @@ void exfat_truncate(struct inode *inode, loff_t size)
 {
 	struct super_block *sb = inode->i_sb;
 	struct exfat_sb_info *sbi = EXFAT_SB(sb);
+	struct exfat_inode_info *ei = EXFAT_I(inode);
 	unsigned int blocksize = i_blocksize(inode);
 	loff_t aligned_size;
 	int err;
 
 	mutex_lock(&sbi->s_lock);
-	if (EXFAT_I(inode)->start_clu == 0) {
+	if (ei->start_clu == 0) {
 		/*
 		 * Empty start_clu != ~0 (not allocated)
 		 */
@@ -259,11 +259,11 @@ write_size:
 		aligned_size++;
 	}
 
-	if (EXFAT_I(inode)->i_size_ondisk > i_size_read(inode))
-		EXFAT_I(inode)->i_size_ondisk = aligned_size;
+	if (ei->i_size_ondisk > i_size_read(inode))
+		ei->i_size_ondisk = aligned_size;
 
-	if (EXFAT_I(inode)->i_size_aligned > i_size_read(inode))
-		EXFAT_I(inode)->i_size_aligned = aligned_size;
+	if (ei->i_size_aligned > i_size_read(inode))
+		ei->i_size_aligned = aligned_size;
 	mutex_unlock(&sbi->s_lock);
 }
 
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index 8b0288f70e93d..d7f11b7ab46c5 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -114,10 +114,9 @@ static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
 	unsigned int local_clu_offset = clu_offset;
 	unsigned int num_to_be_allocated = 0, num_clusters = 0;
 
-	if (EXFAT_I(inode)->i_size_ondisk > 0)
+	if (ei->i_size_ondisk > 0)
 		num_clusters =
-			EXFAT_B_TO_CLU_ROUND_UP(EXFAT_I(inode)->i_size_ondisk,
-			sbi);
+			EXFAT_B_TO_CLU_ROUND_UP(ei->i_size_ondisk, sbi);
 
 	if (clu_offset >= num_clusters)
 		num_to_be_allocated = clu_offset - num_clusters + 1;
@@ -415,10 +414,10 @@ static int exfat_write_end(struct file *file, struct address_space *mapping,
 
 	err = generic_write_end(file, mapping, pos, len, copied, pagep, fsdata);
 
-	if (EXFAT_I(inode)->i_size_aligned < i_size_read(inode)) {
+	if (ei->i_size_aligned < i_size_read(inode)) {
 		exfat_fs_error(inode->i_sb,
 			"invalid size(size(%llu) > aligned(%llu)\n",
-			i_size_read(inode), EXFAT_I(inode)->i_size_aligned);
+			i_size_read(inode), ei->i_size_aligned);
 		return -EIO;
 	}
 
diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c
index 2932b23a3b6c3..935f600509009 100644
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -395,9 +395,9 @@ static int exfat_find_empty_entry(struct inode *inode,
 
 		/* directory inode should be updated in here */
 		i_size_write(inode, size);
-		EXFAT_I(inode)->i_size_ondisk += sbi->cluster_size;
-		EXFAT_I(inode)->i_size_aligned += sbi->cluster_size;
-		EXFAT_I(inode)->flags = p_dir->flags;
+		ei->i_size_ondisk += sbi->cluster_size;
+		ei->i_size_aligned += sbi->cluster_size;
+		ei->flags = p_dir->flags;
 		inode->i_blocks += 1 << sbi->sect_per_clus_bits;
 	}
 
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index c6d8d2e534865..7b91214a4110e 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -366,9 +366,9 @@ static int exfat_read_root(struct inode *inode)
 
 	inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1))
 			& ~(sbi->cluster_size - 1)) >> inode->i_blkbits;
-	EXFAT_I(inode)->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff;
-	EXFAT_I(inode)->i_size_aligned = i_size_read(inode);
-	EXFAT_I(inode)->i_size_ondisk = i_size_read(inode);
+	ei->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff;
+	ei->i_size_aligned = i_size_read(inode);
+	ei->i_size_ondisk = i_size_read(inode);
 
 	exfat_save_attr(inode, ATTR_SUBDIR);
 	inode->i_mtime = inode->i_atime = inode->i_ctime = ei->i_crtime =
-- 
GitLab


From db36a94ed66baa56f54393ad672f19b313c04ade Mon Sep 17 00:00:00 2001
From: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Date: Mon, 22 Nov 2021 22:02:37 +0900
Subject: [PATCH 4262/4878] exfat: fix i_blocks for files truncated over 4 GiB

[ Upstream commit 92fba084b79e6bc7b12fc118209f1922c1a2df56 ]

In exfat_truncate(), the computation of inode->i_blocks is wrong if
the file is larger than 4 GiB because a 32-bit variable is used as a
mask. This is fixed and simplified by using round_up().

Also fix the same buggy computation in exfat_read_root() and another
(correct) one in exfat_fill_inode(). The latter was fixed another way
last month but can be simplified by using round_up() as well. See:

  commit 0c336d6e33f4 ("exfat: fix incorrect loading of i_blocks for
                        large files")

Fixes: 98d917047e8b ("exfat: add file operations")
Cc: stable@vger.kernel.org # v5.7+
Suggested-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/exfat/file.c  | 4 ++--
 fs/exfat/inode.c | 4 ++--
 fs/exfat/super.c | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 6258c5da3060b..c819e8427ea57 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -250,8 +250,8 @@ void exfat_truncate(struct inode *inode, loff_t size)
 	else
 		mark_inode_dirty(inode);
 
-	inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1)) &
-			~(sbi->cluster_size - 1)) >> inode->i_blkbits;
+	inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >>
+				inode->i_blkbits;
 write_size:
 	aligned_size = i_size_read(inode);
 	if (aligned_size & (blocksize - 1)) {
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index d7f11b7ab46c5..2a9f6a80584ee 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -600,8 +600,8 @@ static int exfat_fill_inode(struct inode *inode, struct exfat_dir_entry *info)
 
 	exfat_save_attr(inode, info->attr);
 
-	inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1)) &
-		~((loff_t)sbi->cluster_size - 1)) >> inode->i_blkbits;
+	inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >>
+				inode->i_blkbits;
 	inode->i_mtime = info->mtime;
 	inode->i_ctime = info->mtime;
 	ei->i_crtime = info->crtime;
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 7b91214a4110e..cd04c912f02e0 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -364,8 +364,8 @@ static int exfat_read_root(struct inode *inode)
 	inode->i_op = &exfat_dir_inode_operations;
 	inode->i_fop = &exfat_dir_operations;
 
-	inode->i_blocks = ((i_size_read(inode) + (sbi->cluster_size - 1))
-			& ~(sbi->cluster_size - 1)) >> inode->i_blkbits;
+	inode->i_blocks = round_up(i_size_read(inode), sbi->cluster_size) >>
+				inode->i_blkbits;
 	ei->i_pos = ((loff_t)sbi->root_dir << 32) | 0xffffffff;
 	ei->i_size_aligned = i_size_read(inode);
 	ei->i_size_ondisk = i_size_read(inode);
-- 
GitLab


From c999c5927e96e51c0666fbdd78a9e6dd47fa200b Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 10 Jan 2022 11:55:32 -0500
Subject: [PATCH 4263/4878] tracing: Add test for user space strings when
 filtering on string pointers

[ Upstream commit 77360f9bbc7e5e2ab7a2c8b4c0244fbbfcfc6f62 ]

Pingfan reported that the following causes a fault:

  echo "filename ~ \"cpu\"" > events/syscalls/sys_enter_openat/filter
  echo 1 > events/syscalls/sys_enter_at/enable

The reason is that trace event filter treats the user space pointer
defined by "filename" as a normal pointer to compare against the "cpu"
string. The following bug happened:

 kvm-03-guest16 login: [72198.026181] BUG: unable to handle page fault for address: 00007fffaae8ef60
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0001) - permissions violation
 PGD 80000001008b7067 P4D 80000001008b7067 PUD 2393f1067 PMD 2393ec067 PTE 8000000108f47867
 Oops: 0001 [#1] PREEMPT SMP PTI
 CPU: 1 PID: 1 Comm: systemd Kdump: loaded Not tainted 5.14.0-32.el9.x86_64 #1
 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
 RIP: 0010:strlen+0x0/0x20
 Code: 48 89 f9 74 09 48 83 c1 01 80 39 00 75 f7 31 d2 44 0f b6 04 16 44 88 04 11
       48 83 c2 01 45 84 c0 75 ee c3 0f 1f 80 00 00 00 00 <80> 3f 00 74 10 48 89 f8
       48 83 c0 01 80 38 00 75 f7 48 29 f8 c3 31
 RSP: 0018:ffffb5b900013e48 EFLAGS: 00010246
 RAX: 0000000000000018 RBX: ffff8fc1c49ede00 RCX: 0000000000000000
 RDX: 0000000000000020 RSI: ffff8fc1c02d601c RDI: 00007fffaae8ef60
 RBP: 00007fffaae8ef60 R08: 0005034f4ddb8ea4 R09: 0000000000000000
 R10: ffff8fc1c02d601c R11: 0000000000000000 R12: ffff8fc1c8a6e380
 R13: 0000000000000000 R14: ffff8fc1c02d6010 R15: ffff8fc1c00453c0
 FS:  00007fa86123db40(0000) GS:ffff8fc2ffd00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007fffaae8ef60 CR3: 0000000102880001 CR4: 00000000007706e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 PKRU: 55555554
 Call Trace:
  filter_pred_pchar+0x18/0x40
  filter_match_preds+0x31/0x70
  ftrace_syscall_enter+0x27a/0x2c0
  syscall_trace_enter.constprop.0+0x1aa/0x1d0
  do_syscall_64+0x16/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xae
 RIP: 0033:0x7fa861d88664

The above happened because the kernel tried to access user space directly
and triggered a "supervisor read access in kernel mode" fault. Worse yet,
the memory could not even be loaded yet, and a SEGFAULT could happen as
well. This could be true for kernel space accessing as well.

To be even more robust, test both kernel and user space strings. If the
string fails to read, then simply have the filter fail.

Note, TASK_SIZE is used to determine if the pointer is user or kernel space
and the appropriate strncpy_from_kernel/user_nofault() function is used to
copy the memory. For some architectures, the compare to TASK_SIZE may always
pick user space or kernel space. If it gets it wrong, the only thing is that
the filter will fail to match. In the future, this needs to be fixed to have
the event denote which should be used. But failing a filter is much better
than panicing the machine, and that can be solved later.

Link: https://lore.kernel.org/all/20220107044951.22080-1-kernelfans@gmail.com/
Link: https://lkml.kernel.org/r/20220110115532.536088fd@gandalf.local.home

Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Reported-by: Pingfan Liu <kernelfans@gmail.com>
Tested-by: Pingfan Liu <kernelfans@gmail.com>
Fixes: 87a342f5db69d ("tracing/filters: Support filtering for char * strings")
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/trace/events.rst     | 10 +++++
 kernel/trace/trace_events_filter.c | 66 ++++++++++++++++++++++++++++--
 2 files changed, 73 insertions(+), 3 deletions(-)

diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst
index 2a5aa48eff6c7..58a471b690e07 100644
--- a/Documentation/trace/events.rst
+++ b/Documentation/trace/events.rst
@@ -230,6 +230,16 @@ Currently the caret ('^') for an error always appears at the beginning of
 the filter string; the error message should still be useful though
 even without more accurate position info.
 
+5.2.1 Filter limitations
+------------------------
+
+If a filter is placed on a string pointer ``(char *)`` that does not point
+to a string on the ring buffer, but instead points to kernel or user space
+memory, then, for safety reasons, at most 1024 bytes of the content is
+copied onto a temporary buffer to do the compare. If the copy of the memory
+faults (the pointer points to memory that should not be accessed), then the
+string compare will be treated as not matching.
+
 5.3 Clearing filters
 --------------------
 
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 78a678eeb1409..7b1fb811cb0ab 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2009 Tom Zanussi <tzanussi@gmail.com>
  */
 
+#include <linux/uaccess.h>
 #include <linux/module.h>
 #include <linux/ctype.h>
 #include <linux/mutex.h>
@@ -654,6 +655,47 @@ DEFINE_EQUALITY_PRED(32);
 DEFINE_EQUALITY_PRED(16);
 DEFINE_EQUALITY_PRED(8);
 
+/* user space strings temp buffer */
+#define USTRING_BUF_SIZE	1024
+
+struct ustring_buffer {
+	char		buffer[USTRING_BUF_SIZE];
+};
+
+static __percpu struct ustring_buffer *ustring_per_cpu;
+
+static __always_inline char *test_string(char *str)
+{
+	struct ustring_buffer *ubuf;
+	char __user *ustr;
+	char *kstr;
+
+	if (!ustring_per_cpu)
+		return NULL;
+
+	ubuf = this_cpu_ptr(ustring_per_cpu);
+	kstr = ubuf->buffer;
+
+	/*
+	 * We use TASK_SIZE to denote user or kernel space, but this will
+	 * not work for all architectures. If it picks the wrong one, it may
+	 * just fail the filter (but will not bug).
+	 *
+	 * TODO: Have a way to properly denote which one this is for.
+	 */
+	if (likely((unsigned long)str >= TASK_SIZE)) {
+		/* For safety, do not trust the string pointer */
+		if (!strncpy_from_kernel_nofault(kstr, str, USTRING_BUF_SIZE))
+			return NULL;
+	} else {
+		/* user space address? */
+		ustr = (char __user *)str;
+		if (!strncpy_from_user_nofault(kstr, ustr, USTRING_BUF_SIZE))
+			return NULL;
+	}
+	return kstr;
+}
+
 /* Filter predicate for fixed sized arrays of characters */
 static int filter_pred_string(struct filter_pred *pred, void *event)
 {
@@ -671,10 +713,16 @@ static int filter_pred_string(struct filter_pred *pred, void *event)
 static int filter_pred_pchar(struct filter_pred *pred, void *event)
 {
 	char **addr = (char **)(event + pred->offset);
+	char *str;
 	int cmp, match;
-	int len = strlen(*addr) + 1;	/* including tailing '\0' */
+	int len;
 
-	cmp = pred->regex.match(*addr, &pred->regex, len);
+	str = test_string(*addr);
+	if (!str)
+		return 0;
+
+	len = strlen(str) + 1;	/* including tailing '\0' */
+	cmp = pred->regex.match(str, &pred->regex, len);
 
 	match = cmp ^ pred->not;
 
@@ -1320,8 +1368,17 @@ static int parse_pred(const char *str, void *data,
 
 		} else if (field->filter_type == FILTER_DYN_STRING)
 			pred->fn = filter_pred_strloc;
-		else
+		else {
+
+			if (!ustring_per_cpu) {
+				/* Once allocated, keep it around for good */
+				ustring_per_cpu = alloc_percpu(struct ustring_buffer);
+				if (!ustring_per_cpu)
+					goto err_mem;
+			}
+
 			pred->fn = filter_pred_pchar;
+		}
 		/* go past the last quote */
 		i++;
 
@@ -1387,6 +1444,9 @@ static int parse_pred(const char *str, void *data,
 err_free:
 	kfree(pred);
 	return -EINVAL;
+err_mem:
+	kfree(pred);
+	return -ENOMEM;
 }
 
 enum {
-- 
GitLab


From 335f11ff74f25dc5e86d89efac9adb2aa03149d4 Mon Sep 17 00:00:00 2001
From: Valentin Caron <valentin.caron@foss.st.com>
Date: Tue, 11 Jan 2022 17:44:40 +0100
Subject: [PATCH 4264/4878] serial: stm32: prevent TDR register overwrite when
 sending x_char

[ Upstream commit d3d079bde07e1b7deaeb57506dc0b86010121d17 ]

When sending x_char in stm32_usart_transmit_chars(), driver can overwrite
the value of TDR register by the value of x_char. If this happens, the
previous value that was present in TDR register will not be sent through
uart.

This code checks if the previous value in TDR register is sent before
writing the x_char value into register.

Fixes: 48a6092fb41f ("serial: stm32-usart: Add STM32 USART Driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Link: https://lore.kernel.org/r/20220111164441.6178-2-valentin.caron@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/stm32-usart.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 0eadf0547175c..6afae051ba8d1 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -420,10 +420,22 @@ static void stm32_usart_transmit_chars(struct uart_port *port)
 	struct stm32_port *stm32_port = to_stm32_port(port);
 	const struct stm32_usart_offsets *ofs = &stm32_port->info->ofs;
 	struct circ_buf *xmit = &port->state->xmit;
+	u32 isr;
+	int ret;
 
 	if (port->x_char) {
 		if (stm32_port->tx_dma_busy)
 			stm32_usart_clr_bits(port, ofs->cr3, USART_CR3_DMAT);
+
+		/* Check that TDR is empty before filling FIFO */
+		ret =
+		readl_relaxed_poll_timeout_atomic(port->membase + ofs->isr,
+						  isr,
+						  (isr & USART_SR_TXE),
+						  10, 1000);
+		if (ret)
+			dev_warn(port->dev, "1 character may be erased\n");
+
 		writel_relaxed(port->x_char, port->membase + ofs->tdr);
 		port->x_char = 0;
 		port->icount.tx++;
-- 
GitLab


From 67e25eb1b4749740e079d94d5f40c2287f4ca1c5 Mon Sep 17 00:00:00 2001
From: Sergey Shtylyov <s.shtylyov@omp.ru>
Date: Sat, 19 Feb 2022 23:04:29 +0300
Subject: [PATCH 4265/4878] ata: pata_hpt37x: fix PCI clock detection

[ Upstream commit 5f6b0f2d037c8864f20ff15311c695f65eb09db5 ]

The f_CNT register (at the PCI config. address 0x78) is 16-bit, not
8-bit! The bug was there from the very start... :-(

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Fixes: 669a5db411d8 ("[libata] Add a bunch of PATA drivers.")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/pata_hpt37x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 499a947d56ddb..fef46de2f6b23 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -962,14 +962,14 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 
 	if ((freq >> 12) != 0xABCDE) {
 		int i;
-		u8 sr;
+		u16 sr;
 		u32 total = 0;
 
 		pr_warn("BIOS has not set timing clocks\n");
 
 		/* This is the process the HPT371 BIOS is reported to use */
 		for (i = 0; i < 128; i++) {
-			pci_read_config_byte(dev, 0x78, &sr);
+			pci_read_config_word(dev, 0x78, &sr);
 			total += sr & 0x1FF;
 			udelay(15);
 		}
-- 
GitLab


From 4a9d2390f3e2d128b1a73279d16bb1176207a0e2 Mon Sep 17 00:00:00 2001
From: Qiang Yu <qiang.yu@amd.com>
Date: Mon, 21 Feb 2022 17:53:56 +0800
Subject: [PATCH 4266/4878] drm/amdgpu: check vm ready by amdgpu_vm->evicting
 flag
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit c1a66c3bc425ff93774fb2f6eefa67b83170dd7e ]

Workstation application ANSA/META v21.1.4 get this error dmesg when
running CI test suite provided by ANSA/META:
[drm:amdgpu_gem_va_ioctl [amdgpu]] *ERROR* Couldn't update BO_VA (-16)

This is caused by:
1. create a 256MB buffer in invisible VRAM
2. CPU map the buffer and access it causes vm_fault and try to move
   it to visible VRAM
3. force visible VRAM space and traverse all VRAM bos to check if
   evicting this bo is valuable
4. when checking a VM bo (in invisible VRAM), amdgpu_vm_evictable()
   will set amdgpu_vm->evicting, but latter due to not in visible
   VRAM, won't really evict it so not add it to amdgpu_vm->evicted
5. before next CS to clear the amdgpu_vm->evicting, user VM ops
   ioctl will pass amdgpu_vm_ready() (check amdgpu_vm->evicted)
   but fail in amdgpu_vm_bo_update_mapping() (check
   amdgpu_vm->evicting) and get this error log

This error won't affect functionality as next CS will finish the
waiting VM ops. But we'd better clear the error log by checking
the amdgpu_vm->evicting flag in amdgpu_vm_ready() to stop calling
amdgpu_vm_bo_update_mapping() later.

Another reason is amdgpu_vm->evicted list holds all BOs (both
user buffer and page table), but only page table BOs' eviction
prevent VM ops. amdgpu_vm->evicting flag is set only for page
table BOs, so we should use evicting flag instead of evicted list
in amdgpu_vm_ready().

The side effect of this change is: previously blocked VM op (user
buffer in "evicted" list but no page table in it) gets done
immediately.

v2: update commit comments.

Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Qiang Yu <qiang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b47829ff30af7..47cc038d7d506 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -715,11 +715,16 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
  * Check if all VM PDs/PTs are ready for updates
  *
  * Returns:
- * True if eviction list is empty.
+ * True if VM is not evicting.
  */
 bool amdgpu_vm_ready(struct amdgpu_vm *vm)
 {
-	return list_empty(&vm->evicted);
+	bool ret;
+
+	amdgpu_vm_eviction_lock(vm);
+	ret = !vm->evicting;
+	amdgpu_vm_eviction_unlock(vm);
+	return ret;
 }
 
 /**
-- 
GitLab


From e57dfaf66f2b74911e45134e51b95759993fa302 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Thu, 13 Jan 2022 20:08:40 -0500
Subject: [PATCH 4267/4878] tracing: Add ustring operation to filtering string
 pointers

[ Upstream commit f37c3bbc635994eda203a6da4ba0f9d05165a8d6 ]

Since referencing user space pointers is special, if the user wants to
filter on a field that is a pointer to user space, then they need to
specify it.

Add a ".ustring" attribute to the field name for filters to state that the
field is pointing to user space such that the kernel can take the
appropriate action to read that pointer.

Link: https://lore.kernel.org/all/yt9d8rvmt2jq.fsf@linux.ibm.com/

Fixes: 77360f9bbc7e ("tracing: Add test for user space strings when filtering on string pointers")
Tested-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/trace/events.rst     |  9 ++++
 kernel/trace/trace_events_filter.c | 81 +++++++++++++++++++++---------
 2 files changed, 66 insertions(+), 24 deletions(-)

diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst
index 58a471b690e07..9df29a935757a 100644
--- a/Documentation/trace/events.rst
+++ b/Documentation/trace/events.rst
@@ -198,6 +198,15 @@ The glob (~) accepts a wild card character (\*,?) and character classes
   prev_comm ~ "*sh*"
   prev_comm ~ "ba*sh"
 
+If the field is a pointer that points into user space (for example
+"filename" from sys_enter_openat), then you have to append ".ustring" to the
+field name::
+
+  filename.ustring ~ "password"
+
+As the kernel will have to know how to retrieve the memory that the pointer
+is at from user space.
+
 5.2 Setting filters
 -------------------
 
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 7b1fb811cb0ab..a255ffbe342f3 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -665,6 +665,23 @@ struct ustring_buffer {
 static __percpu struct ustring_buffer *ustring_per_cpu;
 
 static __always_inline char *test_string(char *str)
+{
+	struct ustring_buffer *ubuf;
+	char *kstr;
+
+	if (!ustring_per_cpu)
+		return NULL;
+
+	ubuf = this_cpu_ptr(ustring_per_cpu);
+	kstr = ubuf->buffer;
+
+	/* For safety, do not trust the string pointer */
+	if (!strncpy_from_kernel_nofault(kstr, str, USTRING_BUF_SIZE))
+		return NULL;
+	return kstr;
+}
+
+static __always_inline char *test_ustring(char *str)
 {
 	struct ustring_buffer *ubuf;
 	char __user *ustr;
@@ -676,23 +693,11 @@ static __always_inline char *test_string(char *str)
 	ubuf = this_cpu_ptr(ustring_per_cpu);
 	kstr = ubuf->buffer;
 
-	/*
-	 * We use TASK_SIZE to denote user or kernel space, but this will
-	 * not work for all architectures. If it picks the wrong one, it may
-	 * just fail the filter (but will not bug).
-	 *
-	 * TODO: Have a way to properly denote which one this is for.
-	 */
-	if (likely((unsigned long)str >= TASK_SIZE)) {
-		/* For safety, do not trust the string pointer */
-		if (!strncpy_from_kernel_nofault(kstr, str, USTRING_BUF_SIZE))
-			return NULL;
-	} else {
-		/* user space address? */
-		ustr = (char __user *)str;
-		if (!strncpy_from_user_nofault(kstr, ustr, USTRING_BUF_SIZE))
-			return NULL;
-	}
+	/* user space address? */
+	ustr = (char __user *)str;
+	if (!strncpy_from_user_nofault(kstr, ustr, USTRING_BUF_SIZE))
+		return NULL;
+
 	return kstr;
 }
 
@@ -709,24 +714,42 @@ static int filter_pred_string(struct filter_pred *pred, void *event)
 	return match;
 }
 
+static __always_inline int filter_pchar(struct filter_pred *pred, char *str)
+{
+	int cmp, match;
+	int len;
+
+	len = strlen(str) + 1;	/* including tailing '\0' */
+	cmp = pred->regex.match(str, &pred->regex, len);
+
+	match = cmp ^ pred->not;
+
+	return match;
+}
 /* Filter predicate for char * pointers */
 static int filter_pred_pchar(struct filter_pred *pred, void *event)
 {
 	char **addr = (char **)(event + pred->offset);
 	char *str;
-	int cmp, match;
-	int len;
 
 	str = test_string(*addr);
 	if (!str)
 		return 0;
 
-	len = strlen(str) + 1;	/* including tailing '\0' */
-	cmp = pred->regex.match(str, &pred->regex, len);
+	return filter_pchar(pred, str);
+}
 
-	match = cmp ^ pred->not;
+/* Filter predicate for char * pointers in user space*/
+static int filter_pred_pchar_user(struct filter_pred *pred, void *event)
+{
+	char **addr = (char **)(event + pred->offset);
+	char *str;
 
-	return match;
+	str = test_ustring(*addr);
+	if (!str)
+		return 0;
+
+	return filter_pchar(pred, str);
 }
 
 /*
@@ -1206,6 +1229,7 @@ static int parse_pred(const char *str, void *data,
 	struct filter_pred *pred = NULL;
 	char num_buf[24];	/* Big enough to hold an address */
 	char *field_name;
+	bool ustring = false;
 	char q;
 	u64 val;
 	int len;
@@ -1240,6 +1264,12 @@ static int parse_pred(const char *str, void *data,
 		return -EINVAL;
 	}
 
+	/* See if the field is a user space string */
+	if ((len = str_has_prefix(str + i, ".ustring"))) {
+		ustring = true;
+		i += len;
+	}
+
 	while (isspace(str[i]))
 		i++;
 
@@ -1377,7 +1407,10 @@ static int parse_pred(const char *str, void *data,
 					goto err_mem;
 			}
 
-			pred->fn = filter_pred_pchar;
+			if (ustring)
+				pred->fn = filter_pred_pchar_user;
+			else
+				pred->fn = filter_pred_pchar;
 		}
 		/* go past the last quote */
 		i++;
-- 
GitLab


From 336872601cb8eb2b09bccbae81b7354d5fbd1cca Mon Sep 17 00:00:00 2001
From: Zhen Ni <nizhen@uniontech.com>
Date: Wed, 2 Mar 2022 15:42:41 +0800
Subject: [PATCH 4268/4878] ALSA: intel_hdmi: Fix reference to PCM buffer
 address

commit 0aa6b294b312d9710804679abd2c0c8ca52cc2bc upstream.

PCM buffers might be allocated dynamically when the buffer
preallocation failed or a larger buffer is requested, and it's not
guaranteed that substream->dma_buffer points to the actually used
buffer.  The driver needs to refer to substream->runtime->dma_addr
instead for the buffer address.

Signed-off-by: Zhen Ni <nizhen@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220302074241.30469-1-nizhen@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/x86/intel_hdmi_audio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index 9f9fcd2749f22..dbaa43ffbbd2d 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1276,7 +1276,7 @@ static int had_pcm_mmap(struct snd_pcm_substream *substream,
 {
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	return remap_pfn_range(vma, vma->vm_start,
-			substream->dma_buffer.addr >> PAGE_SHIFT,
+			substream->runtime->dma_addr >> PAGE_SHIFT,
 			vma->vm_end - vma->vm_start, vma->vm_page_prot);
 }
 
-- 
GitLab


From 00fb385f0ac44cfcc8286d27c8841bc12cf5a08f Mon Sep 17 00:00:00 2001
From: Sunil V L <sunilvl@ventanamicro.com>
Date: Fri, 28 Jan 2022 10:20:04 +0530
Subject: [PATCH 4269/4878] riscv/efi_stub: Fix get_boot_hartid_from_fdt()
 return value

commit dcf0c838854c86e1f41fb1934aea906845d69782 upstream.

The get_boot_hartid_from_fdt() function currently returns U32_MAX
for failure case which is not correct because U32_MAX is a valid
hartid value. This patch fixes the issue by returning error code.

Cc: <stable@vger.kernel.org>
Fixes: d7071743db31 ("RISC-V: Add EFI stub support.")
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/efi/libstub/riscv-stub.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/firmware/efi/libstub/riscv-stub.c b/drivers/firmware/efi/libstub/riscv-stub.c
index 380e4e2513994..9c460843442f5 100644
--- a/drivers/firmware/efi/libstub/riscv-stub.c
+++ b/drivers/firmware/efi/libstub/riscv-stub.c
@@ -25,7 +25,7 @@ typedef void __noreturn (*jump_kernel_func)(unsigned int, unsigned long);
 
 static u32 hartid;
 
-static u32 get_boot_hartid_from_fdt(void)
+static int get_boot_hartid_from_fdt(void)
 {
 	const void *fdt;
 	int chosen_node, len;
@@ -33,23 +33,26 @@ static u32 get_boot_hartid_from_fdt(void)
 
 	fdt = get_efi_config_table(DEVICE_TREE_GUID);
 	if (!fdt)
-		return U32_MAX;
+		return -EINVAL;
 
 	chosen_node = fdt_path_offset(fdt, "/chosen");
 	if (chosen_node < 0)
-		return U32_MAX;
+		return -EINVAL;
 
 	prop = fdt_getprop((void *)fdt, chosen_node, "boot-hartid", &len);
 	if (!prop || len != sizeof(u32))
-		return U32_MAX;
+		return -EINVAL;
 
-	return fdt32_to_cpu(*prop);
+	hartid = fdt32_to_cpu(*prop);
+	return 0;
 }
 
 efi_status_t check_platform_features(void)
 {
-	hartid = get_boot_hartid_from_fdt();
-	if (hartid == U32_MAX) {
+	int ret;
+
+	ret = get_boot_hartid_from_fdt();
+	if (ret) {
 		efi_err("/chosen/boot-hartid missing or invalid!\n");
 		return EFI_UNSUPPORTED;
 	}
-- 
GitLab


From 7211aab2881b0a8b6a002ec2eb341b2d3cb9f003 Mon Sep 17 00:00:00 2001
From: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Date: Fri, 25 Feb 2022 13:39:49 +0100
Subject: [PATCH 4270/4878] riscv: Fix config KASAN && SPARSEMEM &&
 !SPARSE_VMEMMAP

commit a3d328037846d013bb4c7f3777241e190e4c75e1 upstream.

In order to get the pfn of a struct page* when sparsemem is enabled
without vmemmap, the mem_section structures need to be initialized which
happens in sparse_init.

But kasan_early_init calls pfn_to_page way before sparse_init is called,
which then tries to dereference a null mem_section pointer.

Fix this by removing the usage of this function in kasan_early_init.

Fixes: 8ad8b72721d0 ("riscv: Add KASAN support")
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/mm/kasan_init.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
index 883c3be43ea98..2db442701ee28 100644
--- a/arch/riscv/mm/kasan_init.c
+++ b/arch/riscv/mm/kasan_init.c
@@ -21,8 +21,7 @@ asmlinkage void __init kasan_early_init(void)
 
 	for (i = 0; i < PTRS_PER_PTE; ++i)
 		set_pte(kasan_early_shadow_pte + i,
-			mk_pte(virt_to_page(kasan_early_shadow_page),
-			       PAGE_KERNEL));
+			pfn_pte(virt_to_pfn(kasan_early_shadow_page), PAGE_KERNEL));
 
 	for (i = 0; i < PTRS_PER_PMD; ++i)
 		set_pmd(kasan_early_shadow_pmd + i,
-- 
GitLab


From dd9dd24fd7cb5310fa1db2b1b03431c96663fa7c Mon Sep 17 00:00:00 2001
From: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Date: Fri, 25 Feb 2022 13:39:51 +0100
Subject: [PATCH 4271/4878] riscv: Fix config KASAN && DEBUG_VIRTUAL

commit c648c4bb7d02ceb53ee40172fdc4433b37cee9c6 upstream.

__virt_to_phys function is called very early in the boot process (ie
kasan_early_init) so it should not be instrumented by KASAN otherwise it
bugs.

Fix this by declaring phys_addr.c as non-kasan instrumentable.

Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Fixes: 8ad8b72721d0 (riscv: Add KASAN support)
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/mm/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index 7ebaef10ea1b6..ac7a25298a04a 100644
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -24,6 +24,9 @@ obj-$(CONFIG_KASAN)   += kasan_init.o
 ifdef CONFIG_KASAN
 KASAN_SANITIZE_kasan_init.o := n
 KASAN_SANITIZE_init.o := n
+ifdef CONFIG_DEBUG_VIRTUAL
+KASAN_SANITIZE_physaddr.o := n
+endif
 endif
 
 obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
-- 
GitLab


From 6951a5888165a38bb7c39a2d18f5668b2f1241c7 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 15 Feb 2022 14:06:45 +0100
Subject: [PATCH 4272/4878] ASoC: ops: Shift tested values in
 snd_soc_put_volsw() by +min

commit 9bdd10d57a8807dba0003af0325191f3cec0f11c upstream.

While the $val/$val2 values passed in from userspace are always >= 0
integers, the limits of the control can be signed integers and the $min
can be non-zero and less than zero. To correctly validate $val/$val2
against platform_max, add the $min offset to val first.

Fixes: 817f7c9335ec0 ("ASoC: ops: Reject out of bounds values in snd_soc_put_volsw()")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220215130645.164025-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-ops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c
index caa8d45ebb209..2bc9fa6a34b8f 100644
--- a/sound/soc/soc-ops.c
+++ b/sound/soc/soc-ops.c
@@ -317,7 +317,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 		mask = BIT(sign_bit + 1) - 1;
 
 	val = ucontrol->value.integer.value[0];
-	if (mc->platform_max && val > mc->platform_max)
+	if (mc->platform_max && ((int)val + min) > mc->platform_max)
 		return -EINVAL;
 	if (val > max - min)
 		return -EINVAL;
@@ -330,7 +330,7 @@ int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
 	val = val << shift;
 	if (snd_soc_volsw_is_stereo(mc)) {
 		val2 = ucontrol->value.integer.value[1];
-		if (mc->platform_max && val2 > mc->platform_max)
+		if (mc->platform_max && ((int)val2 + min) > mc->platform_max)
 			return -EINVAL;
 		if (val2 > max - min)
 			return -EINVAL;
-- 
GitLab


From 61a895da48443c899083c9eddd9b77484e232707 Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Mon, 4 Oct 2021 13:07:24 +0300
Subject: [PATCH 4273/4878] iommu/amd: Recover from event log overflow

commit 5ce97f4ec5e0f8726a5dda1710727b1ee9badcac upstream.

The AMD IOMMU logs I/O page faults and such to a ring buffer in
system memory, and this ring buffer can overflow.  The AMD IOMMU
spec has the following to say about the interrupt status bit that
signals this overflow condition:

	EventOverflow: Event log overflow. RW1C. Reset 0b. 1 = IOMMU
	event log overflow has occurred. This bit is set when a new
	event is to be written to the event log and there is no usable
	entry in the event log, causing the new event information to
	be discarded. An interrupt is generated when EventOverflow = 1b
	and MMIO Offset 0018h[EventIntEn] = 1b. No new event log
	entries are written while this bit is set. Software Note: To
	resume logging, clear EventOverflow (W1C), and write a 1 to
	MMIO Offset 0018h[EventLogEn].

The AMD IOMMU driver doesn't currently implement this recovery
sequence, meaning that if a ring buffer overflow occurs, logging
of EVT/PPR/GA events will cease entirely.

This patch implements the spec-mandated reset sequence, with the
minor tweak that the hardware seems to want to have a 0 written to
MMIO Offset 0018h[EventLogEn] first, before writing an 1 into this
field, or the IOMMU won't actually resume logging events.

Signed-off-by: Lennert Buytenhek <buytenh@arista.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/YVrSXEdW2rzEfOvk@wantstofly.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/amd/amd_iommu.h       |  1 +
 drivers/iommu/amd/amd_iommu_types.h |  1 +
 drivers/iommu/amd/init.c            | 10 ++++++++++
 drivers/iommu/amd/iommu.c           | 10 ++++++++--
 4 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index b4adab6985632..0c40d22409f23 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h
@@ -17,6 +17,7 @@ extern int amd_iommu_init_passthrough(void);
 extern irqreturn_t amd_iommu_int_thread(int irq, void *data);
 extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
 extern void amd_iommu_apply_erratum_63(u16 devid);
+extern void amd_iommu_restart_event_logging(struct amd_iommu *iommu);
 extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);
 extern int amd_iommu_init_devices(void);
 extern void amd_iommu_uninit_devices(void);
diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h
index 33446c9d3bac8..690c5976575c6 100644
--- a/drivers/iommu/amd/amd_iommu_types.h
+++ b/drivers/iommu/amd/amd_iommu_types.h
@@ -109,6 +109,7 @@
 #define PASID_MASK		0x0000ffff
 
 /* MMIO status bits */
+#define MMIO_STATUS_EVT_OVERFLOW_INT_MASK	(1 << 0)
 #define MMIO_STATUS_EVT_INT_MASK	(1 << 1)
 #define MMIO_STATUS_COM_WAIT_INT_MASK	(1 << 2)
 #define MMIO_STATUS_PPR_INT_MASK	(1 << 6)
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 502e6532dd549..6eaefc9e7b3d6 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -656,6 +656,16 @@ static int __init alloc_command_buffer(struct amd_iommu *iommu)
 	return iommu->cmd_buf ? 0 : -ENOMEM;
 }
 
+/*
+ * This function restarts event logging in case the IOMMU experienced
+ * an event log buffer overflow.
+ */
+void amd_iommu_restart_event_logging(struct amd_iommu *iommu)
+{
+	iommu_feature_disable(iommu, CONTROL_EVT_LOG_EN);
+	iommu_feature_enable(iommu, CONTROL_EVT_LOG_EN);
+}
+
 /*
  * This function resets the command buffer if the IOMMU stopped fetching
  * commands from it.
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 5f1195791cb18..200cf5da5e0ad 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -813,7 +813,8 @@ amd_iommu_set_pci_msi_domain(struct device *dev, struct amd_iommu *iommu) { }
 #endif /* !CONFIG_IRQ_REMAP */
 
 #define AMD_IOMMU_INT_MASK	\
-	(MMIO_STATUS_EVT_INT_MASK | \
+	(MMIO_STATUS_EVT_OVERFLOW_INT_MASK | \
+	 MMIO_STATUS_EVT_INT_MASK | \
 	 MMIO_STATUS_PPR_INT_MASK | \
 	 MMIO_STATUS_GALOG_INT_MASK)
 
@@ -823,7 +824,7 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data)
 	u32 status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
 
 	while (status & AMD_IOMMU_INT_MASK) {
-		/* Enable EVT and PPR and GA interrupts again */
+		/* Enable interrupt sources again */
 		writel(AMD_IOMMU_INT_MASK,
 			iommu->mmio_base + MMIO_STATUS_OFFSET);
 
@@ -844,6 +845,11 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data)
 		}
 #endif
 
+		if (status & MMIO_STATUS_EVT_OVERFLOW_INT_MASK) {
+			pr_info_ratelimited("IOMMU event log overflow\n");
+			amd_iommu_restart_event_logging(iommu);
+		}
+
 		/*
 		 * Hardware bug: ERBT1312
 		 * When re-enabling interrupt (by writing 1
-- 
GitLab


From ce41d80391967c6b48f7bedf1a381237338e71e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Thu, 24 Feb 2022 15:21:42 +0200
Subject: [PATCH 4274/4878] drm/i915: s/JSP2/ICP2/ PCH
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 08783aa7693f55619859f4f63f384abf17cb58c5 upstream.

This JSP2 PCH actually seems to be some special Apple
specific ICP variant rather than a JSP. Make it so. Or at
least all the references to it seem to be some Apple ICL
machines. Didn't manage to find these PCI IDs in any
public chipset docs unfortunately.

The only thing we're losing here with this JSP->ICP change
is Wa_14011294188, but based on the HSD that isn't actually
needed on any ICP based design (including JSP), only TGP
based stuff (including MCC) really need it. The documented
w/a just never made that distinction because Windows didn't
want to differentiate between JSP and MCC (not sure how
they handle hpd/ddc/etc. then though...).

Cc: stable@vger.kernel.org
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4226
Fixes: 943682e3bd19 ("drm/i915: Introduce Jasper Lake PCH")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220224132142.12927-1-ville.syrjala@linux.intel.com
Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com>
Tested-by: Tomas Bzatek <bugs@bzatek.net>
(cherry picked from commit 53581504a8e216d435f114a4f2596ad0dfd902fc)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/intel_pch.c | 2 +-
 drivers/gpu/drm/i915/intel_pch.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pch.c b/drivers/gpu/drm/i915/intel_pch.c
index 6c97192e9ca87..a0d5e95234fd0 100644
--- a/drivers/gpu/drm/i915/intel_pch.c
+++ b/drivers/gpu/drm/i915/intel_pch.c
@@ -110,6 +110,7 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 		/* Comet Lake V PCH is based on KBP, which is SPT compatible */
 		return PCH_SPT;
 	case INTEL_PCH_ICP_DEVICE_ID_TYPE:
+	case INTEL_PCH_ICP2_DEVICE_ID_TYPE:
 		drm_dbg_kms(&dev_priv->drm, "Found Ice Lake PCH\n");
 		drm_WARN_ON(&dev_priv->drm, !IS_ICELAKE(dev_priv));
 		return PCH_ICP;
@@ -124,7 +125,6 @@ intel_pch_type(const struct drm_i915_private *dev_priv, unsigned short id)
 			    !IS_ROCKETLAKE(dev_priv));
 		return PCH_TGP;
 	case INTEL_PCH_JSP_DEVICE_ID_TYPE:
-	case INTEL_PCH_JSP2_DEVICE_ID_TYPE:
 		drm_dbg_kms(&dev_priv->drm, "Found Jasper Lake PCH\n");
 		drm_WARN_ON(&dev_priv->drm, !IS_ELKHARTLAKE(dev_priv));
 		return PCH_JSP;
diff --git a/drivers/gpu/drm/i915/intel_pch.h b/drivers/gpu/drm/i915/intel_pch.h
index 06d2cd50af0b9..49325022b3c96 100644
--- a/drivers/gpu/drm/i915/intel_pch.h
+++ b/drivers/gpu/drm/i915/intel_pch.h
@@ -48,11 +48,11 @@ enum intel_pch {
 #define INTEL_PCH_CMP2_DEVICE_ID_TYPE		0x0680
 #define INTEL_PCH_CMP_V_DEVICE_ID_TYPE		0xA380
 #define INTEL_PCH_ICP_DEVICE_ID_TYPE		0x3480
+#define INTEL_PCH_ICP2_DEVICE_ID_TYPE		0x3880
 #define INTEL_PCH_MCC_DEVICE_ID_TYPE		0x4B00
 #define INTEL_PCH_TGP_DEVICE_ID_TYPE		0xA080
 #define INTEL_PCH_TGP2_DEVICE_ID_TYPE		0x4380
 #define INTEL_PCH_JSP_DEVICE_ID_TYPE		0x4D80
-#define INTEL_PCH_JSP2_DEVICE_ID_TYPE		0x3880
 #define INTEL_PCH_P2X_DEVICE_ID_TYPE		0x7100
 #define INTEL_PCH_P3X_DEVICE_ID_TYPE		0x7000
 #define INTEL_PCH_QEMU_DEVICE_ID_TYPE		0x2900 /* qemu q35 has 2918 */
-- 
GitLab


From a1753d5c29a6fb9a8966dcf04cb4f3b71e303ae8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Wed, 23 Feb 2022 22:19:54 +0100
Subject: [PATCH 4275/4878] xen/netfront: destroy queues before
 real_num_tx_queues is zeroed
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit dcf4ff7a48e7598e6b10126cc02177abb8ae4f3f upstream.

xennet_destroy_queues() relies on info->netdev->real_num_tx_queues to
delete queues. Since d7dac083414eb5bb99a6d2ed53dc2c1b405224e5
("net-sysfs: update the queue counts in the unregistration path"),
unregister_netdev() indirectly sets real_num_tx_queues to 0. Those two
facts together means, that xennet_destroy_queues() called from
xennet_remove() cannot do its job, because it's called after
unregister_netdev(). This results in kfree-ing queues that are still
linked in napi, which ultimately crashes:

    BUG: kernel NULL pointer dereference, address: 0000000000000000
    #PF: supervisor read access in kernel mode
    #PF: error_code(0x0000) - not-present page
    PGD 0 P4D 0
    Oops: 0000 [#1] PREEMPT SMP PTI
    CPU: 1 PID: 52 Comm: xenwatch Tainted: G        W         5.16.10-1.32.fc32.qubes.x86_64+ #226
    RIP: 0010:free_netdev+0xa3/0x1a0
    Code: ff 48 89 df e8 2e e9 00 00 48 8b 43 50 48 8b 08 48 8d b8 a0 fe ff ff 48 8d a9 a0 fe ff ff 49 39 c4 75 26 eb 47 e8 ed c1 66 ff <48> 8b 85 60 01 00 00 48 8d 95 60 01 00 00 48 89 ef 48 2d 60 01 00
    RSP: 0000:ffffc90000bcfd00 EFLAGS: 00010286
    RAX: 0000000000000000 RBX: ffff88800edad000 RCX: 0000000000000000
    RDX: 0000000000000001 RSI: ffffc90000bcfc30 RDI: 00000000ffffffff
    RBP: fffffffffffffea0 R08: 0000000000000000 R09: 0000000000000000
    R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800edad050
    R13: ffff8880065f8f88 R14: 0000000000000000 R15: ffff8880066c6680
    FS:  0000000000000000(0000) GS:ffff8880f3300000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 0000000000000000 CR3: 00000000e998c006 CR4: 00000000003706e0
    Call Trace:
     <TASK>
     xennet_remove+0x13d/0x300 [xen_netfront]
     xenbus_dev_remove+0x6d/0xf0
     __device_release_driver+0x17a/0x240
     device_release_driver+0x24/0x30
     bus_remove_device+0xd8/0x140
     device_del+0x18b/0x410
     ? _raw_spin_unlock+0x16/0x30
     ? klist_iter_exit+0x14/0x20
     ? xenbus_dev_request_and_reply+0x80/0x80
     device_unregister+0x13/0x60
     xenbus_dev_changed+0x18e/0x1f0
     xenwatch_thread+0xc0/0x1a0
     ? do_wait_intr_irq+0xa0/0xa0
     kthread+0x16b/0x190
     ? set_kthread_struct+0x40/0x40
     ret_from_fork+0x22/0x30
     </TASK>

Fix this by calling xennet_destroy_queues() from xennet_uninit(),
when real_num_tx_queues is still available. This ensures that queues are
destroyed when real_num_tx_queues is set to 0, regardless of how
unregister_netdev() was called.

Originally reported at
https://github.com/QubesOS/qubes-issues/issues/7257

Fixes: d7dac083414eb5bb9 ("net-sysfs: update the queue counts in the unregistration path")
Cc: stable@vger.kernel.org
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 39 ++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index fce3a90a335cb..7ed8872d08c60 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -844,6 +844,28 @@ static int xennet_close(struct net_device *dev)
 	return 0;
 }
 
+static void xennet_destroy_queues(struct netfront_info *info)
+{
+	unsigned int i;
+
+	for (i = 0; i < info->netdev->real_num_tx_queues; i++) {
+		struct netfront_queue *queue = &info->queues[i];
+
+		if (netif_running(info->netdev))
+			napi_disable(&queue->napi);
+		netif_napi_del(&queue->napi);
+	}
+
+	kfree(info->queues);
+	info->queues = NULL;
+}
+
+static void xennet_uninit(struct net_device *dev)
+{
+	struct netfront_info *np = netdev_priv(dev);
+	xennet_destroy_queues(np);
+}
+
 static void xennet_set_rx_rsp_cons(struct netfront_queue *queue, RING_IDX val)
 {
 	unsigned long flags;
@@ -1613,6 +1635,7 @@ static int xennet_xdp(struct net_device *dev, struct netdev_bpf *xdp)
 }
 
 static const struct net_device_ops xennet_netdev_ops = {
+	.ndo_uninit          = xennet_uninit,
 	.ndo_open            = xennet_open,
 	.ndo_stop            = xennet_close,
 	.ndo_start_xmit      = xennet_start_xmit,
@@ -2105,22 +2128,6 @@ error:
 	return err;
 }
 
-static void xennet_destroy_queues(struct netfront_info *info)
-{
-	unsigned int i;
-
-	for (i = 0; i < info->netdev->real_num_tx_queues; i++) {
-		struct netfront_queue *queue = &info->queues[i];
-
-		if (netif_running(info->netdev))
-			napi_disable(&queue->napi);
-		netif_napi_del(&queue->napi);
-	}
-
-	kfree(info->queues);
-	info->queues = NULL;
-}
-
 
 
 static int xennet_create_page_pool(struct netfront_queue *queue)
-- 
GitLab


From 1c0b51e62a50e9291764d022ed44549e65d6ab9c Mon Sep 17 00:00:00 2001
From: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Date: Mon, 28 Feb 2022 12:03:51 +0100
Subject: [PATCH 4276/4878] thermal: core: Fix TZ_GET_TRIP NULL pointer
 dereference

commit 5838a14832d447990827d85e90afe17e6fb9c175 upstream.

Do not call get_trip_hyst() from thermal_genl_cmd_tz_get_trip() if
the thermal zone does not define one.

Fixes: 1ce50e7d408e ("thermal: core: genetlink support for events/cmd/sampling")
Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Cc: 5.10+ <stable@vger.kernel.org> # 5.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/thermal/thermal_netlink.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_netlink.c b/drivers/thermal/thermal_netlink.c
index 1234dbe958951..41c8d47805c4e 100644
--- a/drivers/thermal/thermal_netlink.c
+++ b/drivers/thermal/thermal_netlink.c
@@ -418,11 +418,12 @@ static int thermal_genl_cmd_tz_get_trip(struct param *p)
 	for (i = 0; i < tz->trips; i++) {
 
 		enum thermal_trip_type type;
-		int temp, hyst;
+		int temp, hyst = 0;
 
 		tz->ops->get_trip_type(tz, i, &type);
 		tz->ops->get_trip_temp(tz, i, &temp);
-		tz->ops->get_trip_hyst(tz, i, &hyst);
+		if (tz->ops->get_trip_hyst)
+			tz->ops->get_trip_hyst(tz, i, &hyst);
 
 		if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, i) ||
 		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, type) ||
-- 
GitLab


From 912186db092c4be979917a036ee94adbd2eb0b05 Mon Sep 17 00:00:00 2001
From: Dave Jiang <dave.jiang@intel.com>
Date: Thu, 27 Jan 2022 13:31:12 -0700
Subject: [PATCH 4277/4878] ntb: intel: fix port config status offset for SPR

commit d5081bf5dcfb1cb83fb538708b0ac07a10a79cc4 upstream.

The field offset for port configuration status on SPR has been changed to
bit 14 from ICX where it resides at bit 12. By chance link status detection
continued to work on SPR. This is due to bit 12 being a configuration bit
which is in sync with the status bit. Fix this by checking for a SPR device
and checking correct status bit.

Fixes: 26bfe3d0b227 ("ntb: intel: Add Icelake (gen4) support for Intel NTB")
Tested-by: Jerry Dai <jerry.dai@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ntb/hw/intel/ntb_hw_gen4.c | 17 ++++++++++++++++-
 drivers/ntb/hw/intel/ntb_hw_gen4.h | 16 ++++++++++++++++
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/drivers/ntb/hw/intel/ntb_hw_gen4.c b/drivers/ntb/hw/intel/ntb_hw_gen4.c
index bc4541cbf8c6e..99a5fc1ab0aaf 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen4.c
+++ b/drivers/ntb/hw/intel/ntb_hw_gen4.c
@@ -168,6 +168,18 @@ static enum ntb_topo gen4_ppd_topo(struct intel_ntb_dev *ndev, u32 ppd)
 	return NTB_TOPO_NONE;
 }
 
+static enum ntb_topo spr_ppd_topo(struct intel_ntb_dev *ndev, u32 ppd)
+{
+	switch (ppd & SPR_PPD_TOPO_MASK) {
+	case SPR_PPD_TOPO_B2B_USD:
+		return NTB_TOPO_B2B_USD;
+	case SPR_PPD_TOPO_B2B_DSD:
+		return NTB_TOPO_B2B_DSD;
+	}
+
+	return NTB_TOPO_NONE;
+}
+
 int gen4_init_dev(struct intel_ntb_dev *ndev)
 {
 	struct pci_dev *pdev = ndev->ntb.pdev;
@@ -181,7 +193,10 @@ int gen4_init_dev(struct intel_ntb_dev *ndev)
 		ndev->hwerr_flags |= NTB_HWERR_BAR_ALIGN;
 
 	ppd1 = ioread32(ndev->self_mmio + GEN4_PPD1_OFFSET);
-	ndev->ntb.topo = gen4_ppd_topo(ndev, ppd1);
+	if (pdev_is_ICX(pdev))
+		ndev->ntb.topo = gen4_ppd_topo(ndev, ppd1);
+	else if (pdev_is_SPR(pdev))
+		ndev->ntb.topo = spr_ppd_topo(ndev, ppd1);
 	dev_dbg(&pdev->dev, "ppd %#x topo %s\n", ppd1,
 		ntb_topo_string(ndev->ntb.topo));
 	if (ndev->ntb.topo == NTB_TOPO_NONE)
diff --git a/drivers/ntb/hw/intel/ntb_hw_gen4.h b/drivers/ntb/hw/intel/ntb_hw_gen4.h
index a868c788de02f..ec293953d665f 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen4.h
+++ b/drivers/ntb/hw/intel/ntb_hw_gen4.h
@@ -46,10 +46,14 @@
 #define GEN4_PPD_CLEAR_TRN		0x0001
 #define GEN4_PPD_LINKTRN		0x0008
 #define GEN4_PPD_CONN_MASK		0x0300
+#define SPR_PPD_CONN_MASK		0x0700
 #define GEN4_PPD_CONN_B2B		0x0200
 #define GEN4_PPD_DEV_MASK		0x1000
 #define GEN4_PPD_DEV_DSD		0x1000
 #define GEN4_PPD_DEV_USD		0x0000
+#define SPR_PPD_DEV_MASK		0x4000
+#define SPR_PPD_DEV_DSD 		0x4000
+#define SPR_PPD_DEV_USD 		0x0000
 #define GEN4_LINK_CTRL_LINK_DISABLE	0x0010
 
 #define GEN4_SLOTSTS			0xb05a
@@ -59,6 +63,10 @@
 #define GEN4_PPD_TOPO_B2B_USD	(GEN4_PPD_CONN_B2B | GEN4_PPD_DEV_USD)
 #define GEN4_PPD_TOPO_B2B_DSD	(GEN4_PPD_CONN_B2B | GEN4_PPD_DEV_DSD)
 
+#define SPR_PPD_TOPO_MASK	(SPR_PPD_CONN_MASK | SPR_PPD_DEV_MASK)
+#define SPR_PPD_TOPO_B2B_USD	(GEN4_PPD_CONN_B2B | SPR_PPD_DEV_USD)
+#define SPR_PPD_TOPO_B2B_DSD	(GEN4_PPD_CONN_B2B | SPR_PPD_DEV_DSD)
+
 #define GEN4_DB_COUNT			32
 #define GEN4_DB_LINK			32
 #define GEN4_DB_LINK_BIT		BIT_ULL(GEN4_DB_LINK)
@@ -97,4 +105,12 @@ static inline int pdev_is_ICX(struct pci_dev *pdev)
 	return 0;
 }
 
+static inline int pdev_is_SPR(struct pci_dev *pdev)
+{
+	if (pdev_is_gen4(pdev) &&
+	    pdev->revision > PCI_DEVICE_REVISION_ICX_MAX)
+		return 1;
+	return 0;
+}
+
 #endif
-- 
GitLab


From e93f2be33d4f4c1aa350dd79b6d1179746ff4cb5 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <daniel@iogearbox.net>
Date: Fri, 4 Mar 2022 15:26:32 +0100
Subject: [PATCH 4278/4878] mm: Consider __GFP_NOWARN flag for oversized
 kvmalloc() calls
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 0708a0afe291bdfe1386d74d5ec1f0c27e8b9168 upstream.

syzkaller was recently triggering an oversized kvmalloc() warning via
xdp_umem_create().

The triggered warning was added back in 7661809d493b ("mm: don't allow
oversized kvmalloc() calls"). The rationale for the warning for huge
kvmalloc sizes was as a reaction to a security bug where the size was
more than UINT_MAX but not everything was prepared to handle unsigned
long sizes.

Anyway, the AF_XDP related call trace from this syzkaller report was:

  kvmalloc include/linux/mm.h:806 [inline]
  kvmalloc_array include/linux/mm.h:824 [inline]
  kvcalloc include/linux/mm.h:829 [inline]
  xdp_umem_pin_pages net/xdp/xdp_umem.c:102 [inline]
  xdp_umem_reg net/xdp/xdp_umem.c:219 [inline]
  xdp_umem_create+0x6a5/0xf00 net/xdp/xdp_umem.c:252
  xsk_setsockopt+0x604/0x790 net/xdp/xsk.c:1068
  __sys_setsockopt+0x1fd/0x4e0 net/socket.c:2176
  __do_sys_setsockopt net/socket.c:2187 [inline]
  __se_sys_setsockopt net/socket.c:2184 [inline]
  __x64_sys_setsockopt+0xb5/0x150 net/socket.c:2184
  do_syscall_x64 arch/x86/entry/common.c:50 [inline]
  do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Björn mentioned that requests for >2GB allocation can still be valid:

  The structure that is being allocated is the page-pinning accounting.
  AF_XDP has an internal limit of U32_MAX pages, which is *a lot*, but
  still fewer than what memcg allows (PAGE_COUNTER_MAX is a LONG_MAX/
  PAGE_SIZE on 64 bit systems). [...]

  I could just change from U32_MAX to INT_MAX, but as I stated earlier
  that has a hacky feeling to it. [...] From my perspective, the code
  isn't broken, with the memcg limits in consideration. [...]

Linus says:

  [...] Pretty much every time this has come up, the kernel warning has
  shown that yes, the code was broken and there really wasn't a reason
  for doing allocations that big.

  Of course, some people would be perfectly fine with the allocation
  failing, they just don't want the warning. I didn't want __GFP_NOWARN
  to shut it up originally because I wanted people to see all those
  cases, but these days I think we can just say "yeah, people can shut
  it up explicitly by saying 'go ahead and fail this allocation, don't
  warn about it'".

  So enough time has passed that by now I'd certainly be ok with [it].

Thus allow call-sites to silence such userspace triggered splats if the
allocation requests have __GFP_NOWARN. For xdp_umem_pin_pages()'s call
to kvcalloc() this is already the case, so nothing else needed there.

Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")
Reported-by: syzbot+11421fbbff99b989670e@syzkaller.appspotmail.com
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: syzbot+11421fbbff99b989670e@syzkaller.appspotmail.com
Cc: Björn Töpel <bjorn@kernel.org>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Link: https://lore.kernel.org/bpf/CAJ+HfNhyfsT5cS_U9EC213ducHs9k9zNxX9+abqC0kTrPbQ0gg@mail.gmail.com
Link: https://lore.kernel.org/bpf/20211201202905.b9892171e3f5b9a60f9da251@linux-foundation.org
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Ackd-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/util.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/util.c b/mm/util.c
index 90792e4eaa252..8904727607907 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -582,8 +582,10 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node)
 		return ret;
 
 	/* Don't even allow crazy sizes */
-	if (WARN_ON_ONCE(size > INT_MAX))
+	if (unlikely(size > INT_MAX)) {
+		WARN_ON_ONCE(!(flags & __GFP_NOWARN));
 		return NULL;
+	}
 
 	return __vmalloc_node(size, 1, flags, node,
 			__builtin_return_address(0));
-- 
GitLab


From 4952faa77d8d1c4c146ac077e13d6245738979f4 Mon Sep 17 00:00:00 2001
From: Jiri Bohac <jbohac@suse.cz>
Date: Wed, 19 Jan 2022 10:22:53 +0100
Subject: [PATCH 4279/4878] xfrm: fix MTU regression

commit 6596a0229541270fb8d38d989f91b78838e5e9da upstream.

Commit 749439bfac6e1a2932c582e2699f91d329658196 ("ipv6: fix udpv6
sendmsg crash caused by too small MTU") breaks PMTU for xfrm.

A Packet Too Big ICMPv6 message received in response to an ESP
packet will prevent all further communication through the tunnel
if the reported MTU minus the ESP overhead is smaller than 1280.

E.g. in a case of a tunnel-mode ESP with sha256/aes the overhead
is 92 bytes. Receiving a PTB with MTU of 1371 or less will result
in all further packets in the tunnel dropped. A ping through the
tunnel fails with "ping: sendmsg: Invalid argument".

Apparently the MTU on the xfrm route is smaller than 1280 and
fails the check inside ip6_setup_cork() added by 749439bf.

We found this by debugging USGv6/ipv6ready failures. Failing
tests are: "Phase-2 Interoperability Test Scenario IPsec" /
5.3.11 and 5.4.11 (Tunnel Mode: Fragmentation).

Commit b515d2637276a3810d6595e10ab02c13bfd0b63a ("xfrm:
xfrm_state_mtu should return at least 1280 for ipv6") attempted
to fix this but caused another regression in TCP MSS calculations
and had to be reverted.

The patch below fixes the situation by dropping the MTU
check and instead checking for the underflows described in the
749439bf commit message.

Signed-off-by: Jiri Bohac <jbohac@suse.cz>
Fixes: 749439bfac6e ("ipv6: fix udpv6 sendmsg crash caused by too small MTU")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/ip6_output.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 54cabf1c2ae15..d6f2126f46184 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1432,8 +1432,6 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
 		if (np->frag_size)
 			mtu = np->frag_size;
 	}
-	if (mtu < IPV6_MIN_MTU)
-		return -EINVAL;
 	cork->base.fragsize = mtu;
 	cork->base.gso_size = ipc6->gso_size;
 	cork->base.tx_flags = 0;
@@ -1495,8 +1493,6 @@ static int __ip6_append_data(struct sock *sk,
 
 	fragheaderlen = sizeof(struct ipv6hdr) + rt->rt6i_nfheader_len +
 			(opt ? opt->opt_nflen : 0);
-	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
-		     sizeof(struct frag_hdr);
 
 	headersize = sizeof(struct ipv6hdr) +
 		     (opt ? opt->opt_flen + opt->opt_nflen : 0) +
@@ -1504,6 +1500,13 @@ static int __ip6_append_data(struct sock *sk,
 		      sizeof(struct frag_hdr) : 0) +
 		     rt->rt6i_nfheader_len;
 
+	if (mtu < fragheaderlen ||
+	    ((mtu - fragheaderlen) & ~7) + fragheaderlen < sizeof(struct frag_hdr))
+		goto emsgsize;
+
+	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen -
+		     sizeof(struct frag_hdr);
+
 	/* as per RFC 7112 section 5, the entire IPv6 Header Chain must fit
 	 * the first fragment
 	 */
-- 
GitLab


From 8b0142c4143c1ca297dcf2c0cdd045d65dae2344 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 27 Feb 2022 10:01:41 -0800
Subject: [PATCH 4280/4878] netfilter: fix use-after-free in
 __nf_register_net_hook()

commit 56763f12b0f02706576a088e85ef856deacc98a0 upstream.

We must not dereference @new_hooks after nf_hook_mutex has been released,
because other threads might have freed our allocated hooks already.

BUG: KASAN: use-after-free in nf_hook_entries_get_hook_ops include/linux/netfilter.h:130 [inline]
BUG: KASAN: use-after-free in hooks_validate net/netfilter/core.c:171 [inline]
BUG: KASAN: use-after-free in __nf_register_net_hook+0x77a/0x820 net/netfilter/core.c:438
Read of size 2 at addr ffff88801c1a8000 by task syz-executor237/4430

CPU: 1 PID: 4430 Comm: syz-executor237 Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x336 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
 nf_hook_entries_get_hook_ops include/linux/netfilter.h:130 [inline]
 hooks_validate net/netfilter/core.c:171 [inline]
 __nf_register_net_hook+0x77a/0x820 net/netfilter/core.c:438
 nf_register_net_hook+0x114/0x170 net/netfilter/core.c:571
 nf_register_net_hooks+0x59/0xc0 net/netfilter/core.c:587
 nf_synproxy_ipv6_init+0x85/0xe0 net/netfilter/nf_synproxy_core.c:1218
 synproxy_tg6_check+0x30d/0x560 net/ipv6/netfilter/ip6t_SYNPROXY.c:81
 xt_check_target+0x26c/0x9e0 net/netfilter/x_tables.c:1038
 check_target net/ipv6/netfilter/ip6_tables.c:530 [inline]
 find_check_entry.constprop.0+0x7f1/0x9e0 net/ipv6/netfilter/ip6_tables.c:573
 translate_table+0xc8b/0x1750 net/ipv6/netfilter/ip6_tables.c:735
 do_replace net/ipv6/netfilter/ip6_tables.c:1153 [inline]
 do_ip6t_set_ctl+0x56e/0xb90 net/ipv6/netfilter/ip6_tables.c:1639
 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
 ipv6_setsockopt+0x122/0x180 net/ipv6/ipv6_sockglue.c:1024
 rawv6_setsockopt+0xd3/0x6a0 net/ipv6/raw.c:1084
 __sys_setsockopt+0x2db/0x610 net/socket.c:2180
 __do_sys_setsockopt net/socket.c:2191 [inline]
 __se_sys_setsockopt net/socket.c:2188 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f65a1ace7d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f65a1a7f308 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f65a1ace7d9
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007f65a1b574c8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 00007f65a1b55130
R13: 00007f65a1b574c0 R14: 00007f65a1b24090 R15: 0000000000022000
 </TASK>

The buggy address belongs to the page:
page:ffffea0000706a00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1c1a8
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001c1b108 ffffea000046dd08 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x52dc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_ZERO), pid 4430, ts 1061781545818, free_ts 1061791488993
 prep_new_page mm/page_alloc.c:2434 [inline]
 get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4165
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5389
 __alloc_pages_node include/linux/gfp.h:572 [inline]
 alloc_pages_node include/linux/gfp.h:595 [inline]
 kmalloc_large_node+0x62/0x130 mm/slub.c:4438
 __kmalloc_node+0x35a/0x4a0 mm/slub.c:4454
 kmalloc_node include/linux/slab.h:604 [inline]
 kvmalloc_node+0x97/0x100 mm/util.c:580
 kvmalloc include/linux/slab.h:731 [inline]
 kvzalloc include/linux/slab.h:739 [inline]
 allocate_hook_entries_size net/netfilter/core.c:61 [inline]
 nf_hook_entries_grow+0x140/0x780 net/netfilter/core.c:128
 __nf_register_net_hook+0x144/0x820 net/netfilter/core.c:429
 nf_register_net_hook+0x114/0x170 net/netfilter/core.c:571
 nf_register_net_hooks+0x59/0xc0 net/netfilter/core.c:587
 nf_synproxy_ipv6_init+0x85/0xe0 net/netfilter/nf_synproxy_core.c:1218
 synproxy_tg6_check+0x30d/0x560 net/ipv6/netfilter/ip6t_SYNPROXY.c:81
 xt_check_target+0x26c/0x9e0 net/netfilter/x_tables.c:1038
 check_target net/ipv6/netfilter/ip6_tables.c:530 [inline]
 find_check_entry.constprop.0+0x7f1/0x9e0 net/ipv6/netfilter/ip6_tables.c:573
 translate_table+0xc8b/0x1750 net/ipv6/netfilter/ip6_tables.c:735
 do_replace net/ipv6/netfilter/ip6_tables.c:1153 [inline]
 do_ip6t_set_ctl+0x56e/0xb90 net/ipv6/netfilter/ip6_tables.c:1639
 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1352 [inline]
 free_pcp_prepare+0x374/0x870 mm/page_alloc.c:1404
 free_unref_page_prepare mm/page_alloc.c:3325 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3404
 kvfree+0x42/0x50 mm/util.c:613
 rcu_do_batch kernel/rcu/tree.c:2527 [inline]
 rcu_core+0x7b1/0x1820 kernel/rcu/tree.c:2778
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558

Memory state around the buggy address:
 ffff88801c1a7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88801c1a7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88801c1a8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff88801c1a8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88801c1a8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

Fixes: 2420b79f8c18 ("netfilter: debug: check for sorted array")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 63d032191e626..60332fdb6dd44 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -406,14 +406,15 @@ static int __nf_register_net_hook(struct net *net, int pf,
 	p = nf_entry_dereference(*pp);
 	new_hooks = nf_hook_entries_grow(p, reg);
 
-	if (!IS_ERR(new_hooks))
+	if (!IS_ERR(new_hooks)) {
+		hooks_validate(new_hooks);
 		rcu_assign_pointer(*pp, new_hooks);
+	}
 
 	mutex_unlock(&nf_hook_mutex);
 	if (IS_ERR(new_hooks))
 		return PTR_ERR(new_hooks);
 
-	hooks_validate(new_hooks);
 #ifdef CONFIG_NETFILTER_INGRESS
 	if (nf_ingress_hook(reg, pf))
 		net_inc_ingress_queue();
-- 
GitLab


From 24efaae03b0d093a40e91dce2b820bab03664bca Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 2 Mar 2022 08:17:22 -0800
Subject: [PATCH 4281/4878] bpf, sockmap: Do not ignore orig_len parameter

commit 60ce37b03917e593d8e5d8bcc7ec820773daf81d upstream.

Currently, sk_psock_verdict_recv() returns skb->len

This is problematic because tcp_read_sock() might have
passed orig_len < skb->len, due to the presence of TCP urgent data.

This causes an infinite loop from tcp_read_sock()

Followup patch will make tcp_read_sock() more robust vs bad actors.

Fixes: ef5659280eb1 ("bpf, sockmap: Allow skipping sk_skb parser program")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20220302161723.3910001-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/skmsg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 5dd5569f89bf5..e4bb89599b44b 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -943,7 +943,7 @@ static int sk_psock_verdict_recv(read_descriptor_t *desc, struct sk_buff *skb,
 	struct sk_psock *psock;
 	struct bpf_prog *prog;
 	int ret = __SK_DROP;
-	int len = skb->len;
+	int len = orig_len;
 
 	/* clone here so sk_eat_skb() in tcp_read_sock does not drop our data */
 	skb = skb_clone(skb, GFP_ATOMIC);
-- 
GitLab


From 2f0e6d80e8b570aeb7e6eb6db2e2dd9fdbb6236c Mon Sep 17 00:00:00 2001
From: Antony Antony <antony.antony@secunet.com>
Date: Tue, 1 Feb 2022 07:51:57 +0100
Subject: [PATCH 4282/4878] xfrm: fix the if_id check in changelink

commit 6d0d95a1c2b07270870e7be16575c513c29af3f1 upstream.

if_id will be always 0, because it was not yet initialized.

Fixes: 8dce43919566 ("xfrm: interface with if_id 0 should return error")
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Antony Antony <antony.antony@secunet.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/xfrm/xfrm_interface.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index e1fae61a5bb90..4420c8fd318a6 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -679,12 +679,12 @@ static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[],
 	struct net *net = xi->net;
 	struct xfrm_if_parms p = {};
 
+	xfrmi_netlink_parms(data, &p);
 	if (!p.if_id) {
 		NL_SET_ERR_MSG(extack, "if_id must be non zero");
 		return -EINVAL;
 	}
 
-	xfrmi_netlink_parms(data, &p);
 	xi = xfrmi_locate(net, &p);
 	if (!xi) {
 		xi = netdev_priv(dev);
-- 
GitLab


From b53d4bfd1a6894e00dc8d654af61a22bb914dde4 Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@nvidia.com>
Date: Tue, 8 Feb 2022 16:14:32 +0200
Subject: [PATCH 4283/4878] xfrm: enforce validity of offload input flags

commit 7c76ecd9c99b6e9a771d813ab1aa7fa428b3ade1 upstream.

struct xfrm_user_offload has flags variable that received user input,
but kernel didn't check if valid bits were provided. It caused a situation
where not sanitized input was forwarded directly to the drivers.

For example, XFRM_OFFLOAD_IPV6 define that was exposed, was used by
strongswan, but not implemented in the kernel at all.

As a solution, check and sanitize input flags to forward
XFRM_OFFLOAD_INBOUND to the drivers.

Fixes: d77e38e612a0 ("xfrm: Add an IPsec hardware offloading API")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/xfrm.h | 6 ++++++
 net/xfrm/xfrm_device.c    | 6 +++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index 2290c98b47cf8..90ddb49fce84e 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -506,6 +506,12 @@ struct xfrm_user_offload {
 	int				ifindex;
 	__u8				flags;
 };
+/* This flag was exposed without any kernel code that supporting it.
+ * Unfortunately, strongswan has the code that uses sets this flag,
+ * which makes impossible to reuse this bit.
+ *
+ * So leave it here to make sure that it won't be reused by mistake.
+ */
 #define XFRM_OFFLOAD_IPV6	1
 #define XFRM_OFFLOAD_INBOUND	2
 
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index e843b0d9e2a61..c255aac6b816b 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -223,6 +223,9 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
 	if (x->encap || x->tfcpad)
 		return -EINVAL;
 
+	if (xuo->flags & ~(XFRM_OFFLOAD_IPV6 | XFRM_OFFLOAD_INBOUND))
+		return -EINVAL;
+
 	dev = dev_get_by_index(net, xuo->ifindex);
 	if (!dev) {
 		if (!(xuo->flags & XFRM_OFFLOAD_INBOUND)) {
@@ -261,7 +264,8 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
 	xso->dev = dev;
 	xso->real_dev = dev;
 	xso->num_exthdrs = 1;
-	xso->flags = xuo->flags;
+	/* Don't forward bit that is not implemented */
+	xso->flags = xuo->flags & ~XFRM_OFFLOAD_IPV6;
 
 	err = dev->xfrmdev_ops->xdo_dev_state_add(x);
 	if (err) {
-- 
GitLab


From eb5e444fe37d467e54d2945c1293f311ce782f67 Mon Sep 17 00:00:00 2001
From: Sasha Neftin <sasha.neftin@intel.com>
Date: Thu, 3 Feb 2022 14:21:49 +0200
Subject: [PATCH 4284/4878] e1000e: Correct NVM checksum verification flow

commit ffd24fa2fcc76ecb2e61e7a4ef8588177bcb42a6 upstream.

Update MAC type check e1000_pch_tgp because for e1000_pch_cnp,
NVM checksum update is still possible.
Emit a more detailed warning message.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1191663
Fixes: 4051f68318ca ("e1000e: Do not take care about recovery NVM checksum")
Reported-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/e1000e/ich8lan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index b38b914f9ac6c..15b1503d5b6ca 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -4134,9 +4134,9 @@ static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
 		return ret_val;
 
 	if (!(data & valid_csum_mask)) {
-		e_dbg("NVM Checksum Invalid\n");
+		e_dbg("NVM Checksum valid bit not set\n");
 
-		if (hw->mac.type < e1000_pch_cnp) {
+		if (hw->mac.type < e1000_pch_tgp) {
 			data |= valid_csum_mask;
 			ret_val = e1000_write_nvm(hw, word, 1, &data);
 			if (ret_val)
-- 
GitLab


From 4e178ed14bda47942c1ccad3f60b774870b45db9 Mon Sep 17 00:00:00 2001
From: lena wang <lena.wang@mediatek.com>
Date: Tue, 1 Mar 2022 19:17:09 +0800
Subject: [PATCH 4285/4878] net: fix up skbs delta_truesize in UDP GRO
 frag_list

commit 224102de2ff105a2c05695e66a08f4b5b6b2d19c upstream.

The truesize for a UDP GRO packet is added by main skb and skbs in main
skb's frag_list:
skb_gro_receive_list
        p->truesize += skb->truesize;

The commit 53475c5dd856 ("net: fix use-after-free when UDP GRO with
shared fraglist") introduced a truesize increase for frag_list skbs.
When uncloning skb, it will call pskb_expand_head and trusesize for
frag_list skbs may increase. This can occur when allocators uses
__netdev_alloc_skb and not jump into __alloc_skb. This flow does not
use ksize(len) to calculate truesize while pskb_expand_head uses.
skb_segment_list
err = skb_unclone(nskb, GFP_ATOMIC);
pskb_expand_head
        if (!skb->sk || skb->destructor == sock_edemux)
                skb->truesize += size - osize;

If we uses increased truesize adding as delta_truesize, it will be
larger than before and even larger than previous total truesize value
if skbs in frag_list are abundant. The main skb truesize will become
smaller and even a minus value or a huge value for an unsigned int
parameter. Then the following memory check will drop this abnormal skb.

To avoid this error we should use the original truesize to segment the
main skb.

Fixes: 53475c5dd856 ("net: fix use-after-free when UDP GRO with shared fraglist")
Signed-off-by: lena wang <lena.wang@mediatek.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/1646133431-8948-1-git-send-email-lena.wang@mediatek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/core/skbuff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index fccc42c8ca0c7..48b6438f2a3d9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3690,6 +3690,7 @@ struct sk_buff *skb_segment_list(struct sk_buff *skb,
 		list_skb = list_skb->next;
 
 		err = 0;
+		delta_truesize += nskb->truesize;
 		if (skb_shared(nskb)) {
 			tmp = skb_clone(nskb, GFP_ATOMIC);
 			if (tmp) {
@@ -3714,7 +3715,6 @@ struct sk_buff *skb_segment_list(struct sk_buff *skb,
 		tail = nskb;
 
 		delta_len += nskb->len;
-		delta_truesize += nskb->truesize;
 
 		skb_push(nskb, -skb_network_offset(nskb) + offset);
 
-- 
GitLab


From 3b9ba964f77cbac7679379f82a6a08ddbef3bc33 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 25 Feb 2022 14:02:41 +0100
Subject: [PATCH 4286/4878] netfilter: nf_queue: don't assume sk is full socket

commit 747670fd9a2d1b7774030dba65ca022ba442ce71 upstream.

There is no guarantee that state->sk refers to a full socket.

If refcount transitions to 0, sock_put calls sk_free which then ends up
with garbage fields.

I'd like to thank Oleksandr Natalenko and Jiri Benc for considerable
debug work and pointing out state->sk oddities.

Fixes: ca6fb0651883 ("tcp: attach SYNACK messages to request sockets instead of listener")
Tested-by: Oleksandr Natalenko <oleksandr@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nf_queue.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index bbd1209694b89..897bbd686cd96 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -46,6 +46,15 @@ void nf_unregister_queue_handler(struct net *net)
 }
 EXPORT_SYMBOL(nf_unregister_queue_handler);
 
+static void nf_queue_sock_put(struct sock *sk)
+{
+#ifdef CONFIG_INET
+	sock_gen_put(sk);
+#else
+	sock_put(sk);
+#endif
+}
+
 static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
 {
 	struct nf_hook_state *state = &entry->state;
@@ -56,7 +65,7 @@ static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
 	if (state->out)
 		dev_put(state->out);
 	if (state->sk)
-		sock_put(state->sk);
+		nf_queue_sock_put(state->sk);
 
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
 	if (entry->physin)
-- 
GitLab


From 4d05239203fa38ea8a6f31e228460da4cb17a71a Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Mon, 28 Feb 2022 06:22:22 +0100
Subject: [PATCH 4287/4878] netfilter: nf_queue: fix possible use-after-free

commit c3873070247d9e3c7a6b0cf9bf9b45e8018427b1 upstream.

Eric Dumazet says:
  The sock_hold() side seems suspect, because there is no guarantee
  that sk_refcnt is not already 0.

On failure, we cannot queue the packet and need to indicate an
error.  The packet will be dropped by the caller.

v2: split skb prefetch hunk into separate change

Fixes: 271b72c7fa82c ("udp: RCU handling for Unicast packets.")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/netfilter/nf_queue.h |  2 +-
 net/netfilter/nf_queue.c         | 13 +++++++++----
 net/netfilter/nfnetlink_queue.c  | 12 +++++++++---
 3 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index e770bba000664..b1d43894296a6 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -37,7 +37,7 @@ void nf_register_queue_handler(struct net *net, const struct nf_queue_handler *q
 void nf_unregister_queue_handler(struct net *net);
 void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
 
-void nf_queue_entry_get_refs(struct nf_queue_entry *entry);
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry);
 void nf_queue_entry_free(struct nf_queue_entry *entry);
 
 static inline void init_hashrandom(u32 *jhash_initval)
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 897bbd686cd96..543904249f7e1 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -100,16 +100,17 @@ static void __nf_queue_entry_init_physdevs(struct nf_queue_entry *entry)
 }
 
 /* Bump dev refs so they don't vanish while packet is out */
-void nf_queue_entry_get_refs(struct nf_queue_entry *entry)
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry)
 {
 	struct nf_hook_state *state = &entry->state;
 
+	if (state->sk && !refcount_inc_not_zero(&state->sk->sk_refcnt))
+		return false;
+
 	if (state->in)
 		dev_hold(state->in);
 	if (state->out)
 		dev_hold(state->out);
-	if (state->sk)
-		sock_hold(state->sk);
 
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
 	if (entry->physin)
@@ -117,6 +118,7 @@ void nf_queue_entry_get_refs(struct nf_queue_entry *entry)
 	if (entry->physout)
 		dev_hold(entry->physout);
 #endif
+	return true;
 }
 EXPORT_SYMBOL_GPL(nf_queue_entry_get_refs);
 
@@ -205,7 +207,10 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
 
 	__nf_queue_entry_init_physdevs(entry);
 
-	nf_queue_entry_get_refs(entry);
+	if (!nf_queue_entry_get_refs(entry)) {
+		kfree(entry);
+		return -ENOTCONN;
+	}
 
 	switch (entry->state.pf) {
 	case AF_INET:
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index b0358f30947ea..1640da5c50776 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -712,9 +712,15 @@ static struct nf_queue_entry *
 nf_queue_entry_dup(struct nf_queue_entry *e)
 {
 	struct nf_queue_entry *entry = kmemdup(e, e->size, GFP_ATOMIC);
-	if (entry)
-		nf_queue_entry_get_refs(entry);
-	return entry;
+
+	if (!entry)
+		return NULL;
+
+	if (nf_queue_entry_get_refs(entry))
+		return entry;
+
+	kfree(entry);
+	return NULL;
 }
 
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
-- 
GitLab


From 81f817f3e559d3e4e56110f6132f8322a97fbc8c Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Tue, 1 Mar 2022 00:46:19 +0100
Subject: [PATCH 4288/4878] netfilter: nf_queue: handle socket prefetch

commit 3b836da4081fa585cf6c392f62557496f2cb0efe upstream.

In case someone combines bpf socket assign and nf_queue, then we will
queue an skb who references a struct sock that did not have its
reference count incremented.

As we leave rcu protection, there is no guarantee that skb->sk is still
valid.

For refcount-less skb->sk case, try to increment the reference count
and then override the destructor.

In case of failure we have two choices: orphan the skb and 'delete'
preselect or let nf_queue() drop the packet.

Do the latter, it should not happen during normal operation.

Fixes: cf7fbe660f2d ("bpf: Add socket assign support")
Acked-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/netfilter/nf_queue.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 543904249f7e1..bb8607ff94bc7 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -189,6 +189,18 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
 		break;
 	}
 
+	if (skb_sk_is_prefetched(skb)) {
+		struct sock *sk = skb->sk;
+
+		if (!sk_is_refcounted(sk)) {
+			if (!refcount_inc_not_zero(&sk->sk_refcnt))
+				return -ENOTCONN;
+
+			/* drop refcount on skb_orphan */
+			skb->destructor = sock_edemux;
+		}
+	}
+
 	entry = kmalloc(sizeof(*entry) + route_key_size, GFP_ATOMIC);
 	if (!entry)
 		return -ENOMEM;
-- 
GitLab


From dcf10d78ff2c38dc5097cb59ae44367db17ed0c0 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Mon, 28 Feb 2022 00:01:24 +0100
Subject: [PATCH 4289/4878] batman-adv: Request iflink once in batadv-on-batadv
 check

commit 690bb6fb64f5dc7437317153902573ecad67593d upstream.

There is no need to call dev_get_iflink multiple times for the same
net_device in batadv_is_on_batman_iface. And since some of the
.ndo_get_iflink callbacks are dynamic (for example via RCUs like in
vxcan_get_iflink), it could easily happen that the returned values are not
stable. The pre-checks before __dev_get_by_index are then of course bogus.

Fixes: b7eddd0b3950 ("batman-adv: prevent using any virtual device created on batman-adv as hard-interface")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/batman-adv/hard-interface.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 33904595fc56a..20f7c397817c8 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -151,22 +151,23 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
 	struct net *net = dev_net(net_dev);
 	struct net_device *parent_dev;
 	struct net *parent_net;
+	int iflink;
 	bool ret;
 
 	/* check if this is a batman-adv mesh interface */
 	if (batadv_softif_is_valid(net_dev))
 		return true;
 
+	iflink = dev_get_iflink(net_dev);
+
 	/* no more parents..stop recursion */
-	if (dev_get_iflink(net_dev) == 0 ||
-	    dev_get_iflink(net_dev) == net_dev->ifindex)
+	if (iflink == 0 || iflink == net_dev->ifindex)
 		return false;
 
 	parent_net = batadv_getlink_net(net_dev, net);
 
 	/* recurse over the parent device */
-	parent_dev = __dev_get_by_index((struct net *)parent_net,
-					dev_get_iflink(net_dev));
+	parent_dev = __dev_get_by_index((struct net *)parent_net, iflink);
 	/* if we got a NULL parent_dev there is something broken.. */
 	if (!parent_dev) {
 		pr_err("Cannot find parent device\n");
-- 
GitLab


From 3dae11d21fc8aa57f389fd32ab884b638a04aff2 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Mon, 28 Feb 2022 00:01:24 +0100
Subject: [PATCH 4290/4878] batman-adv: Request iflink once in
 batadv_get_real_netdevice

commit 6116ba09423f7d140f0460be6a1644dceaad00da upstream.

There is no need to call dev_get_iflink multiple times for the same
net_device in batadv_get_real_netdevice. And since some of the
ndo_get_iflink callbacks are dynamic (for example via RCUs like in
vxcan_get_iflink), it could easily happen that the returned values are not
stable. The pre-checks before __dev_get_by_index are then of course bogus.

Fixes: 5ed4a460a1d3 ("batman-adv: additional checks for virtual interfaces on top of WiFi")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/batman-adv/hard-interface.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 20f7c397817c8..a82ab29aef334 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -217,14 +217,16 @@ static struct net_device *batadv_get_real_netdevice(struct net_device *netdev)
 	struct net_device *real_netdev = NULL;
 	struct net *real_net;
 	struct net *net;
-	int ifindex;
+	int iflink;
 
 	ASSERT_RTNL();
 
 	if (!netdev)
 		return NULL;
 
-	if (netdev->ifindex == dev_get_iflink(netdev)) {
+	iflink = dev_get_iflink(netdev);
+
+	if (netdev->ifindex == iflink) {
 		dev_hold(netdev);
 		return netdev;
 	}
@@ -234,9 +236,8 @@ static struct net_device *batadv_get_real_netdevice(struct net_device *netdev)
 		goto out;
 
 	net = dev_net(hard_iface->soft_iface);
-	ifindex = dev_get_iflink(netdev);
 	real_net = batadv_getlink_net(netdev, net);
-	real_netdev = dev_get_by_index(real_net, ifindex);
+	real_netdev = dev_get_by_index(real_net, iflink);
 
 out:
 	if (hard_iface)
-- 
GitLab


From a9c4a74ad5ae4a23ce4db8cc9a0ead08ce5b60f3 Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Sun, 27 Feb 2022 23:23:49 +0100
Subject: [PATCH 4291/4878] batman-adv: Don't expect inter-netns unique iflink
 indices

commit 6c1f41afc1dbe59d9d3c8bb0d80b749c119aa334 upstream.

The ifindex doesn't have to be unique for multiple network namespaces on
the same machine.

  $ ip netns add test1
  $ ip -net test1 link add dummy1 type dummy
  $ ip netns add test2
  $ ip -net test2 link add dummy2 type dummy

  $ ip -net test1 link show dev dummy1
  6: dummy1: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
      link/ether 96:81:55:1e:dd:85 brd ff:ff:ff:ff:ff:ff
  $ ip -net test2 link show dev dummy2
  6: dummy2: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
      link/ether 5a:3c:af:35:07:c3 brd ff:ff:ff:ff:ff:ff

But the batman-adv code to walk through the various layers of virtual
interfaces uses this assumption because dev_get_iflink handles it
internally and doesn't return the actual netns of the iflink. And
dev_get_iflink only documents the situation where ifindex == iflink for
physical devices.

But only checking for dev->netdev_ops->ndo_get_iflink is also not an option
because ipoib_get_iflink implements it even when it sometimes returns an
iflink != ifindex and sometimes iflink == ifindex. The caller must
therefore make sure itself to check both netns and iflink + ifindex for
equality. Only when they are equal, a "physical" interface was detected
which should stop the traversal. On the other hand, vxcan_get_iflink can
also return 0 in case there was currently no valid peer. In this case, it
is still necessary to stop.

Fixes: b7eddd0b3950 ("batman-adv: prevent using any virtual device created on batman-adv as hard-interface")
Fixes: 5ed4a460a1d3 ("batman-adv: additional checks for virtual interfaces on top of WiFi")
Reported-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/batman-adv/hard-interface.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index a82ab29aef334..fe0898a9b4e82 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -159,13 +159,15 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
 		return true;
 
 	iflink = dev_get_iflink(net_dev);
-
-	/* no more parents..stop recursion */
-	if (iflink == 0 || iflink == net_dev->ifindex)
+	if (iflink == 0)
 		return false;
 
 	parent_net = batadv_getlink_net(net_dev, net);
 
+	/* iflink to itself, most likely physical device */
+	if (net == parent_net && iflink == net_dev->ifindex)
+		return false;
+
 	/* recurse over the parent device */
 	parent_dev = __dev_get_by_index((struct net *)parent_net, iflink);
 	/* if we got a NULL parent_dev there is something broken.. */
@@ -225,8 +227,7 @@ static struct net_device *batadv_get_real_netdevice(struct net_device *netdev)
 		return NULL;
 
 	iflink = dev_get_iflink(netdev);
-
-	if (netdev->ifindex == iflink) {
+	if (iflink == 0) {
 		dev_hold(netdev);
 		return netdev;
 	}
@@ -237,6 +238,14 @@ static struct net_device *batadv_get_real_netdevice(struct net_device *netdev)
 
 	net = dev_net(hard_iface->soft_iface);
 	real_net = batadv_getlink_net(netdev, net);
+
+	/* iflink to itself, most likely physical device */
+	if (net == real_net && netdev->ifindex == iflink) {
+		real_netdev = netdev;
+		dev_hold(real_netdev);
+		goto out;
+	}
+
 	real_netdev = dev_get_by_index(real_net, iflink);
 
 out:
-- 
GitLab


From f4c63b24dea9cc2043ff845dcca9aaf8109ea38a Mon Sep 17 00:00:00 2001
From: "j.nixdorf@avm.de" <j.nixdorf@avm.de>
Date: Thu, 24 Feb 2022 10:06:49 +0100
Subject: [PATCH 4292/4878] net: ipv6: ensure we call ipv6_mc_down() at most
 once

commit 9995b408f17ff8c7f11bc725c8aa225ba3a63b1c upstream.

There are two reasons for addrconf_notify() to be called with NETDEV_DOWN:
either the network device is actually going down, or IPv6 was disabled
on the interface.

If either of them stays down while the other is toggled, we repeatedly
call the code for NETDEV_DOWN, including ipv6_mc_down(), while never
calling the corresponding ipv6_mc_up() in between. This will cause a
new entry in idev->mc_tomb to be allocated for each multicast group
the interface is subscribed to, which in turn leaks one struct ifmcaddr6
per nontrivial multicast group the interface is subscribed to.

The following reproducer will leak at least $n objects:

ip addr add ff2e::4242/32 dev eth0 autojoin
sysctl -w net.ipv6.conf.eth0.disable_ipv6=1
for i in $(seq 1 $n); do
	ip link set up eth0; ip link set down eth0
done

Joining groups with IPV6_ADD_MEMBERSHIP (unprivileged) or setting the
sysctl net.ipv6.conf.eth0.forwarding to 1 (=> subscribing to ff02::2)
can also be used to create a nontrivial idev->mc_list, which will the
leak objects with the right up-down-sequence.

Based on both sources for NETDEV_DOWN events the interface IPv6 state
should be considered:

 - not ready if the network interface is not ready OR IPv6 is disabled
   for it
 - ready if the network interface is ready AND IPv6 is enabled for it

The functions ipv6_mc_up() and ipv6_down() should only be run when this
state changes.

Implement this by remembering when the IPv6 state is ready, and only
run ipv6_mc_down() if it actually changed from ready to not ready.

The other direction (not ready -> ready) already works correctly, as:

 - the interface notification triggered codepath for NETDEV_UP /
   NETDEV_CHANGE returns early if ipv6 is disabled, and
 - the disable_ipv6=0 triggered codepath skips fully initializing the
   interface as long as addrconf_link_ready(dev) returns false
 - calling ipv6_mc_up() repeatedly does not leak anything

Fixes: 3ce62a84d53c ("ipv6: exit early in addrconf_notify() if IPv6 is disabled")
Signed-off-by: Johannes Nixdorf <j.nixdorf@avm.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv6/addrconf.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4dde49e628fab..072c348237536 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3712,6 +3712,7 @@ static int addrconf_ifdown(struct net_device *dev, bool unregister)
 	struct inet6_dev *idev;
 	struct inet6_ifaddr *ifa, *tmp;
 	bool keep_addr = false;
+	bool was_ready;
 	int state, i;
 
 	ASSERT_RTNL();
@@ -3777,7 +3778,10 @@ restart:
 
 	addrconf_del_rs_timer(idev);
 
-	/* Step 2: clear flags for stateless addrconf */
+	/* Step 2: clear flags for stateless addrconf, repeated down
+	 *         detection
+	 */
+	was_ready = idev->if_flags & IF_READY;
 	if (!unregister)
 		idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
 
@@ -3851,7 +3855,7 @@ restart:
 	if (unregister) {
 		ipv6_ac_destroy_dev(idev);
 		ipv6_mc_destroy_dev(idev);
-	} else {
+	} else if (was_ready) {
 		ipv6_mc_down(idev);
 	}
 
-- 
GitLab


From 6a8a4dc2a279b225783a838e04ecd469df6ff21d Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Thu, 24 Feb 2022 18:01:54 +0200
Subject: [PATCH 4293/4878] net: dcb: flush lingering app table entries for
 unregistered devices

commit 91b0383fef06f20b847fa9e4f0e3054ead0b1a1b upstream.

If I'm not mistaken (and I don't think I am), the way in which the
dcbnl_ops work is that drivers call dcb_ieee_setapp() and this populates
the application table with dynamically allocated struct dcb_app_type
entries that are kept in the module-global dcb_app_list.

However, nobody keeps exact track of these entries, and although
dcb_ieee_delapp() is supposed to remove them, nobody does so when the
interface goes away (example: driver unbinds from device). So the
dcb_app_list will contain lingering entries with an ifindex that no
longer matches any device in dcb_app_lookup().

Reclaim the lost memory by listening for the NETDEV_UNREGISTER event and
flushing the app table entries of interfaces that are now gone.

In fact something like this used to be done as part of the initial
commit (blamed below), but it was done in dcbnl_exit() -> dcb_flushapp(),
essentially at module_exit time. That became dead code after commit
7a6b6f515f77 ("DCB: fix kconfig option") which essentially merged
"tristate config DCB" and "bool config DCBNL" into a single "bool config
DCB", so net/dcb/dcbnl.c could not be built as a module anymore.

Commit 36b9ad8084bd ("net/dcb: make dcbnl.c explicitly non-modular")
recognized this and deleted dcbnl_exit() and dcb_flushapp() altogether,
leaving us with the version we have today.

Since flushing application table entries can and should be done as soon
as the netdevice disappears, fundamentally the commit that is to blame
is the one that introduced the design of this API.

Fixes: 9ab933ab2cc8 ("dcbnl: add appliction tlv handlers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/dcb/dcbnl.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index a352ce4f878a3..799ff0efcc55b 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -2063,10 +2063,54 @@ u8 dcb_ieee_getapp_default_prio_mask(const struct net_device *dev)
 }
 EXPORT_SYMBOL(dcb_ieee_getapp_default_prio_mask);
 
+static void dcbnl_flush_dev(struct net_device *dev)
+{
+	struct dcb_app_type *itr, *tmp;
+
+	spin_lock(&dcb_lock);
+
+	list_for_each_entry_safe(itr, tmp, &dcb_app_list, list) {
+		if (itr->ifindex == dev->ifindex) {
+			list_del(&itr->list);
+			kfree(itr);
+		}
+	}
+
+	spin_unlock(&dcb_lock);
+}
+
+static int dcbnl_netdevice_event(struct notifier_block *nb,
+				 unsigned long event, void *ptr)
+{
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
+	switch (event) {
+	case NETDEV_UNREGISTER:
+		if (!dev->dcbnl_ops)
+			return NOTIFY_DONE;
+
+		dcbnl_flush_dev(dev);
+
+		return NOTIFY_OK;
+	default:
+		return NOTIFY_DONE;
+	}
+}
+
+static struct notifier_block dcbnl_nb __read_mostly = {
+	.notifier_call  = dcbnl_netdevice_event,
+};
+
 static int __init dcbnl_init(void)
 {
+	int err;
+
 	INIT_LIST_HEAD(&dcb_app_list);
 
+	err = register_netdevice_notifier(&dcbnl_nb);
+	if (err)
+		return err;
+
 	rtnl_register(PF_UNSPEC, RTM_GETDCB, dcb_doit, NULL, 0);
 	rtnl_register(PF_UNSPEC, RTM_SETDCB, dcb_doit, NULL, 0);
 
-- 
GitLab


From 2e8d465b83db307f04ad265848f8ab3f78f6918f Mon Sep 17 00:00:00 2001
From: "D. Wythe" <alibuda@linux.alibaba.com>
Date: Thu, 24 Feb 2022 23:26:19 +0800
Subject: [PATCH 4294/4878] net/smc: fix connection leak

commit 9f1c50cf39167ff71dc5953a3234f3f6eeb8fcb5 upstream.

There's a potential leak issue under following execution sequence :

smc_release  				smc_connect_work
if (sk->sk_state == SMC_INIT)
					send_clc_confirim
	tcp_abort();
					...
					sk.sk_state = SMC_ACTIVE
smc_close_active
switch(sk->sk_state) {
...
case SMC_ACTIVE:
	smc_close_final()
	// then wait peer closed

Unfortunately, tcp_abort() may discard CLC CONFIRM messages that are
still in the tcp send buffer, in which case our connection token cannot
be delivered to the server side, which means that we cannot get a
passive close message at all. Therefore, it is impossible for the to be
disconnected at all.

This patch tries a very simple way to avoid this issue, once the state
has changed to SMC_ACTIVE after tcp_abort(), we can actively abort the
smc connection, considering that the state is SMC_INIT before
tcp_abort(), abandoning the complete disconnection process should not
cause too much problem.

In fact, this problem may exist as long as the CLC CONFIRM message is
not received by the server. Whether a timer should be added after
smc_close_final() needs to be discussed in the future. But even so, this
patch provides a faster release for connection in above case, it should
also be valuable.

Fixes: 39f41f367b08 ("net/smc: common release code for non-accepted sockets")
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/af_smc.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 99b902e410c49..4f16d406ad8ea 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -180,7 +180,7 @@ static int smc_release(struct socket *sock)
 {
 	struct sock *sk = sock->sk;
 	struct smc_sock *smc;
-	int rc = 0;
+	int old_state, rc = 0;
 
 	if (!sk)
 		goto out;
@@ -188,8 +188,10 @@ static int smc_release(struct socket *sock)
 	sock_hold(sk); /* sock_put below */
 	smc = smc_sk(sk);
 
+	old_state = sk->sk_state;
+
 	/* cleanup for a dangling non-blocking connect */
-	if (smc->connect_nonblock && sk->sk_state == SMC_INIT)
+	if (smc->connect_nonblock && old_state == SMC_INIT)
 		tcp_abort(smc->clcsock->sk, ECONNABORTED);
 
 	if (cancel_work_sync(&smc->connect_work))
@@ -203,6 +205,10 @@ static int smc_release(struct socket *sock)
 	else
 		lock_sock(sk);
 
+	if (old_state == SMC_INIT && sk->sk_state == SMC_ACTIVE &&
+	    !smc->use_fallback)
+		smc_close_active_abort(smc);
+
 	rc = __smc_release(smc);
 
 	/* detach socket */
-- 
GitLab


From d7eb662625eb56615f3caec6bac7a6f400080c7a Mon Sep 17 00:00:00 2001
From: "D. Wythe" <alibuda@linux.alibaba.com>
Date: Wed, 2 Mar 2022 21:25:11 +0800
Subject: [PATCH 4295/4878] net/smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB
 error generated by client

commit 0537f0a2151375dcf90c1bbfda6a0aaf57164e89 upstream.

The main reason for this unexpected SMC_CLC_DECL_ERR_REGRMB in client
dues to following execution sequence:

Server Conn A:           Server Conn B:			Client Conn B:

smc_lgr_unregister_conn
                        smc_lgr_register_conn
                        smc_clc_send_accept     ->
                                                        smc_rtoken_add
smcr_buf_unuse
		->		Client Conn A:
				smc_rtoken_delete

smc_lgr_unregister_conn() makes current link available to assigned to new
incoming connection, while smcr_buf_unuse() has not executed yet, which
means that smc_rtoken_add may fail because of insufficient rtoken_entry,
reversing their execution order will avoid this problem.

Fixes: 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers")
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/smc_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 4eb9ef9c28003..18c4eefc88e6c 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -662,8 +662,8 @@ void smc_conn_free(struct smc_connection *conn)
 			cancel_work_sync(&conn->abort_work);
 	}
 	if (!list_empty(&lgr->list)) {
-		smc_lgr_unregister_conn(conn);
 		smc_buf_unuse(conn, lgr); /* allow buffer reuse */
+		smc_lgr_unregister_conn(conn);
 	}
 
 	if (!lgr->conns_num)
-- 
GitLab


From 9bb7237cc740b9f4f8904d1823ed71c71a5e83e8 Mon Sep 17 00:00:00 2001
From: "D. Wythe" <alibuda@linux.alibaba.com>
Date: Wed, 2 Mar 2022 21:25:12 +0800
Subject: [PATCH 4296/4878] net/smc: fix unexpected SMC_CLC_DECL_ERR_REGRMB
 error cause by server

commit 4940a1fdf31c39f0806ac831cde333134862030b upstream.

The problem of SMC_CLC_DECL_ERR_REGRMB on the server is very clear.
Based on the fact that whether a new SMC connection can be accepted or
not depends on not only the limit of conn nums, but also the available
entries of rtoken. Since the rtoken release is trigger by peer, while
the conn nums is decrease by local, tons of thing can happen in this
time difference.

This only thing that needs to be mentioned is that now all connection
creations are completely protected by smc_server_lgr_pending lock, it's
enough to check only the available entries in rtokens_used_mask.

Fixes: cd6851f30386 ("smc: remote memory buffers (RMBs)")
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/smc/smc_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 18c4eefc88e6c..d69aac6c1fcea 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1316,7 +1316,8 @@ int smc_conn_create(struct smc_sock *smc, struct smc_init_info *ini)
 		    (ini->smcd_version == SMC_V2 ||
 		     lgr->vlan_id == ini->vlan_id) &&
 		    (role == SMC_CLNT || ini->is_smcd ||
-		     lgr->conns_num < SMC_RMBS_PER_LGR_MAX)) {
+		    (lgr->conns_num < SMC_RMBS_PER_LGR_MAX &&
+		      !bitmap_full(lgr->rtokens_used_mask, SMC_RMBS_PER_LGR_MAX)))) {
 			/* link group found */
 			ini->first_contact_local = 0;
 			conn->lgr = lgr;
-- 
GitLab


From 0c145262ac99fc0b0a1a7ddac749e89a58e78653 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <frederic@kernel.org>
Date: Tue, 23 Feb 2021 01:09:59 +0100
Subject: [PATCH 4297/4878] rcu/nocb: Fix missed nocb_timer requeue

commit b2fcf2102049f6e56981e0ab3d9b633b8e2741da upstream.

This sequence of events can lead to a failure to requeue a CPU's
->nocb_timer:

1.	There are no callbacks queued for any CPU covered by CPU 0-2's
	->nocb_gp_kthread.  Note that ->nocb_gp_kthread is associated
	with CPU 0.

2.	CPU 1 enqueues its first callback with interrupts disabled, and
	thus must defer awakening its ->nocb_gp_kthread.  It therefore
	queues its rcu_data structure's ->nocb_timer.  At this point,
	CPU 1's rdp->nocb_defer_wakeup is RCU_NOCB_WAKE.

3.	CPU 2, which shares the same ->nocb_gp_kthread, also enqueues a
	callback, but with interrupts enabled, allowing it to directly
	awaken the ->nocb_gp_kthread.

4.	The newly awakened ->nocb_gp_kthread associates both CPU 1's
	and CPU 2's callbacks with a future grace period and arranges
	for that grace period to be started.

5.	This ->nocb_gp_kthread goes to sleep waiting for the end of this
	future grace period.

6.	This grace period elapses before the CPU 1's timer fires.
	This is normally improbably given that the timer is set for only
	one jiffy, but timers can be delayed.  Besides, it is possible
	that kernel was built with CONFIG_RCU_STRICT_GRACE_PERIOD=y.

7.	The grace period ends, so rcu_gp_kthread awakens the
	->nocb_gp_kthread, which in turn awakens both CPU 1's and
	CPU 2's ->nocb_cb_kthread.  Then ->nocb_gb_kthread sleeps
	waiting for more newly queued callbacks.

8.	CPU 1's ->nocb_cb_kthread invokes its callback, then sleeps
	waiting for more invocable callbacks.

9.	Note that neither kthread updated any ->nocb_timer state,
	so CPU 1's ->nocb_defer_wakeup is still set to RCU_NOCB_WAKE.

10.	CPU 1 enqueues its second callback, this time with interrupts
 	enabled so it can wake directly	->nocb_gp_kthread.
	It does so with calling wake_nocb_gp() which also cancels the
	pending timer that got queued in step 2. But that doesn't reset
	CPU 1's ->nocb_defer_wakeup which is still set to RCU_NOCB_WAKE.
	So CPU 1's ->nocb_defer_wakeup and its ->nocb_timer are now
	desynchronized.

11.	->nocb_gp_kthread associates the callback queued in 10 with a new
	grace period, arranges for that grace period to start and sleeps
	waiting for it to complete.

12.	The grace period ends, rcu_gp_kthread awakens ->nocb_gp_kthread,
	which in turn wakes up CPU 1's ->nocb_cb_kthread which then
	invokes the callback queued in 10.

13.	CPU 1 enqueues its third callback, this time with interrupts
	disabled so it must queue a timer for a deferred wakeup. However
	the value of its ->nocb_defer_wakeup is RCU_NOCB_WAKE which
	incorrectly indicates that a timer is already queued.  Instead,
	CPU 1's ->nocb_timer was cancelled in 10.  CPU 1 therefore fails
	to queue the ->nocb_timer.

14.	CPU 1 has its pending callback and it may go unnoticed until
	some other CPU ever wakes up ->nocb_gp_kthread or CPU 1 ever
	calls an explicit deferred wakeup, for example, during idle entry.

This commit fixes this bug by resetting rdp->nocb_defer_wakeup everytime
we delete the ->nocb_timer.

It is quite possible that there is a similar scenario involving
->nocb_bypass_timer and ->nocb_defer_wakeup.  However, despite some
effort from several people, a failure scenario has not yet been located.
However, that by no means guarantees that no such scenario exists.
Finding a failure scenario is left as an exercise for the reader, and the
"Fixes:" tag below relates to ->nocb_bypass_timer instead of ->nocb_timer.

Fixes: d1b222c6be1f (rcu/nocb: Add bypass callback queueing)
Cc: <stable@vger.kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/rcu/tree_plugin.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 244f32e98360f..658427c33b937 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1646,7 +1646,11 @@ static void wake_nocb_gp(struct rcu_data *rdp, bool force,
 		rcu_nocb_unlock_irqrestore(rdp, flags);
 		return;
 	}
-	del_timer(&rdp->nocb_timer);
+
+	if (READ_ONCE(rdp->nocb_defer_wakeup) > RCU_NOCB_WAKE_NOT) {
+		WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOCB_WAKE_NOT);
+		del_timer(&rdp->nocb_timer);
+	}
 	rcu_nocb_unlock_irqrestore(rdp, flags);
 	raw_spin_lock_irqsave(&rdp_gp->nocb_gp_lock, flags);
 	if (force || READ_ONCE(rdp_gp->nocb_gp_sleep)) {
@@ -2164,7 +2168,6 @@ static void do_nocb_deferred_wakeup_common(struct rcu_data *rdp)
 		return;
 	}
 	ndw = READ_ONCE(rdp->nocb_defer_wakeup);
-	WRITE_ONCE(rdp->nocb_defer_wakeup, RCU_NOCB_WAKE_NOT);
 	wake_nocb_gp(rdp, ndw == RCU_NOCB_WAKE_FORCE, flags);
 	trace_rcu_nocb_wake(rcu_state.name, rdp->cpu, TPS("DeferredWake"));
 }
-- 
GitLab


From 41edeeaae51a1064a7e7cdea70623377cb2655cc Mon Sep 17 00:00:00 2001
From: Brett Creeley <brett.creeley@intel.com>
Date: Thu, 9 Sep 2021 14:38:09 -0700
Subject: [PATCH 4298/4878] ice: Fix race conditions between virtchnl handling
 and VF ndo ops

commit e6ba5273d4ede03d075d7a116b8edad1f6115f4d upstream.

The VF can be configured via the PF's ndo ops at the same time the PF is
receiving/handling virtchnl messages. This has many issues, with
one of them being the ndo op could be actively resetting a VF (i.e.
resetting it to the default state and deleting/re-adding the VF's VSI)
while a virtchnl message is being handled. The following error was seen
because a VF ndo op was used to change a VF's trust setting while the
VIRTCHNL_OP_CONFIG_VSI_QUEUES was ongoing:

[35274.192484] ice 0000:88:00.0: Failed to set LAN Tx queue context, error: ICE_ERR_PARAM
[35274.193074] ice 0000:88:00.0: VF 0 failed opcode 6, retval: -5
[35274.193640] iavf 0000:88:01.0: PF returned error -5 (IAVF_ERR_PARAM) to our request 6

Fix this by making sure the virtchnl handling and VF ndo ops that
trigger VF resets cannot run concurrently. This is done by adding a
struct mutex cfg_lock to each VF structure. For VF ndo ops, the mutex
will be locked around the critical operations and VFR. Since the ndo ops
will trigger a VFR, the virtchnl thread will use mutex_trylock(). This
is done because if any other thread (i.e. VF ndo op) has the mutex, then
that means the current VF message being handled is no longer valid, so
just ignore it.

This issue can be seen using the following commands:

for i in {0..50}; do
        rmmod ice
        modprobe ice

        sleep 1

        echo 1 > /sys/class/net/ens785f0/device/sriov_numvfs
        echo 1 > /sys/class/net/ens785f1/device/sriov_numvfs

        ip link set ens785f1 vf 0 trust on
        ip link set ens785f0 vf 0 trust on

        sleep 2

        echo 0 > /sys/class/net/ens785f0/device/sriov_numvfs
        echo 0 > /sys/class/net/ens785f1/device/sriov_numvfs
        sleep 1
        echo 1 > /sys/class/net/ens785f0/device/sriov_numvfs
        echo 1 > /sys/class/net/ens785f1/device/sriov_numvfs

        ip link set ens785f1 vf 0 trust on
        ip link set ens785f0 vf 0 trust on
done

Fixes: 7c710869d64e ("ice: Add handlers for VF netdevice operations")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../net/ethernet/intel/ice/ice_virtchnl_pf.c  | 25 +++++++++++++++++++
 .../net/ethernet/intel/ice/ice_virtchnl_pf.h  |  5 ++++
 2 files changed, 30 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 69ce5d60a8570..62313cfb208c1 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -374,6 +374,8 @@ void ice_free_vfs(struct ice_pf *pf)
 			set_bit(ICE_VF_STATE_DIS, pf->vf[i].vf_states);
 			ice_free_vf_res(&pf->vf[i]);
 		}
+
+		mutex_destroy(&pf->vf[i].cfg_lock);
 	}
 
 	if (ice_sriov_free_msix_res(pf))
@@ -1518,6 +1520,8 @@ static void ice_set_dflt_settings_vfs(struct ice_pf *pf)
 		set_bit(ICE_VIRTCHNL_VF_CAP_L2, &vf->vf_caps);
 		vf->spoofchk = true;
 		vf->num_vf_qs = pf->num_qps_per_vf;
+
+		mutex_init(&vf->cfg_lock);
 	}
 }
 
@@ -3345,6 +3349,8 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
 		return 0;
 	}
 
+	mutex_lock(&vf->cfg_lock);
+
 	vf->port_vlan_info = vlanprio;
 
 	if (vf->port_vlan_info)
@@ -3354,6 +3360,7 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
 		dev_info(dev, "Clearing port VLAN on VF %d\n", vf_id);
 
 	ice_vc_reset_vf(vf);
+	mutex_unlock(&vf->cfg_lock);
 
 	return 0;
 }
@@ -3719,6 +3726,15 @@ error_handler:
 		return;
 	}
 
+	/* VF is being configured in another context that triggers a VFR, so no
+	 * need to process this message
+	 */
+	if (!mutex_trylock(&vf->cfg_lock)) {
+		dev_info(dev, "VF %u is being configured in another context that will trigger a VFR, so there is no need to handle this message\n",
+			 vf->vf_id);
+		return;
+	}
+
 	switch (v_opcode) {
 	case VIRTCHNL_OP_VERSION:
 		err = ice_vc_get_ver_msg(vf, msg);
@@ -3795,6 +3811,8 @@ error_handler:
 		dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
 			 vf_id, v_opcode, err);
 	}
+
+	mutex_unlock(&vf->cfg_lock);
 }
 
 /**
@@ -3909,6 +3927,8 @@ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 		return -EINVAL;
 	}
 
+	mutex_lock(&vf->cfg_lock);
+
 	/* VF is notified of its new MAC via the PF's response to the
 	 * VIRTCHNL_OP_GET_VF_RESOURCES message after the VF has been reset
 	 */
@@ -3926,6 +3946,7 @@ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 	}
 
 	ice_vc_reset_vf(vf);
+	mutex_unlock(&vf->cfg_lock);
 	return 0;
 }
 
@@ -3955,11 +3976,15 @@ int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted)
 	if (trusted == vf->trusted)
 		return 0;
 
+	mutex_lock(&vf->cfg_lock);
+
 	vf->trusted = trusted;
 	ice_vc_reset_vf(vf);
 	dev_info(ice_pf_to_dev(pf), "VF %u is now %strusted\n",
 		 vf_id, trusted ? "" : "un");
 
+	mutex_unlock(&vf->cfg_lock);
+
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
index 0f519fba3770d..59e5b4f16e965 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
@@ -68,6 +68,11 @@ struct ice_mdd_vf_events {
 struct ice_vf {
 	struct ice_pf *pf;
 
+	/* Used during virtchnl message handling and NDO ops against the VF
+	 * that will trigger a VFR
+	 */
+	struct mutex cfg_lock;
+
 	u16 vf_id;			/* VF ID in the PF space */
 	u16 lan_vsi_idx;		/* index into PF struct */
 	/* first vector index of this VF in the PF space */
-- 
GitLab


From 05ae1f0fe9c6c5ead08b306e665763a352d20716 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Mon, 7 Feb 2022 10:23:29 -0800
Subject: [PATCH 4299/4878] ice: fix concurrent reset and removal of VFs

commit fadead80fe4c033b5e514fcbadd20b55c4494112 upstream.

Commit c503e63200c6 ("ice: Stop processing VF messages during teardown")
introduced a driver state flag, ICE_VF_DEINIT_IN_PROGRESS, which is
intended to prevent some issues with concurrently handling messages from
VFs while tearing down the VFs.

This change was motivated by crashes caused while tearing down and
bringing up VFs in rapid succession.

It turns out that the fix actually introduces issues with the VF driver
caused because the PF no longer responds to any messages sent by the VF
during its .remove routine. This results in the VF potentially removing
its DMA memory before the PF has shut down the device queues.

Additionally, the fix doesn't actually resolve concurrency issues within
the ice driver. It is possible for a VF to initiate a reset just prior
to the ice driver removing VFs. This can result in the remove task
concurrently operating while the VF is being reset. This results in
similar memory corruption and panics purportedly fixed by that commit.

Fix this concurrency at its root by protecting both the reset and
removal flows using the existing VF cfg_lock. This ensures that we
cannot remove the VF while any outstanding critical tasks such as a
virtchnl message or a reset are occurring.

This locking change also fixes the root cause originally fixed by commit
c503e63200c6 ("ice: Stop processing VF messages during teardown"), so we
can simply revert it.

Note that I kept these two changes together because simply reverting the
original commit alone would leave the driver vulnerable to worse race
conditions.

Fixes: c503e63200c6 ("ice: Stop processing VF messages during teardown")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/ice/ice_main.c     |  2 ++
 .../net/ethernet/intel/ice/ice_virtchnl_pf.c  | 35 +++++++++++++------
 2 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index fb4656902634c..6c75df216fa7a 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1602,7 +1602,9 @@ static void ice_handle_mdd_event(struct ice_pf *pf)
 				 * reset, so print the event prior to reset.
 				 */
 				ice_print_vf_rx_mdd_event(vf);
+				mutex_lock(&pf->vf[i].cfg_lock);
 				ice_reset_vf(&pf->vf[i], false);
+				mutex_unlock(&pf->vf[i].cfg_lock);
 			}
 		}
 	}
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 62313cfb208c1..48511ad0e0c82 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -360,22 +360,26 @@ void ice_free_vfs(struct ice_pf *pf)
 	else
 		dev_warn(dev, "VFs are assigned - not disabling SR-IOV\n");
 
-	/* Avoid wait time by stopping all VFs at the same time */
-	ice_for_each_vf(pf, i)
-		ice_dis_vf_qs(&pf->vf[i]);
-
 	tmp = pf->num_alloc_vfs;
 	pf->num_qps_per_vf = 0;
 	pf->num_alloc_vfs = 0;
 	for (i = 0; i < tmp; i++) {
-		if (test_bit(ICE_VF_STATE_INIT, pf->vf[i].vf_states)) {
+		struct ice_vf *vf = &pf->vf[i];
+
+		mutex_lock(&vf->cfg_lock);
+
+		ice_dis_vf_qs(vf);
+
+		if (test_bit(ICE_VF_STATE_INIT, vf->vf_states)) {
 			/* disable VF qp mappings and set VF disable state */
-			ice_dis_vf_mappings(&pf->vf[i]);
-			set_bit(ICE_VF_STATE_DIS, pf->vf[i].vf_states);
-			ice_free_vf_res(&pf->vf[i]);
+			ice_dis_vf_mappings(vf);
+			set_bit(ICE_VF_STATE_DIS, vf->vf_states);
+			ice_free_vf_res(vf);
 		}
 
-		mutex_destroy(&pf->vf[i].cfg_lock);
+		mutex_unlock(&vf->cfg_lock);
+
+		mutex_destroy(&vf->cfg_lock);
 	}
 
 	if (ice_sriov_free_msix_res(pf))
@@ -1223,9 +1227,13 @@ bool ice_reset_all_vfs(struct ice_pf *pf, bool is_vflr)
 	ice_for_each_vf(pf, v) {
 		vf = &pf->vf[v];
 
+		mutex_lock(&vf->cfg_lock);
+
 		ice_vf_pre_vsi_rebuild(vf);
 		ice_vf_rebuild_vsi(vf);
 		ice_vf_post_vsi_rebuild(vf);
+
+		mutex_unlock(&vf->cfg_lock);
 	}
 
 	ice_flush(hw);
@@ -1272,6 +1280,8 @@ bool ice_reset_vf(struct ice_vf *vf, bool is_vflr)
 	u32 reg;
 	int i;
 
+	lockdep_assert_held(&vf->cfg_lock);
+
 	dev = ice_pf_to_dev(pf);
 
 	if (test_bit(__ICE_VF_RESETS_DISABLED, pf->state)) {
@@ -1725,9 +1735,12 @@ void ice_process_vflr_event(struct ice_pf *pf)
 		bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
 		/* read GLGEN_VFLRSTAT register to find out the flr VFs */
 		reg = rd32(hw, GLGEN_VFLRSTAT(reg_idx));
-		if (reg & BIT(bit_idx))
+		if (reg & BIT(bit_idx)) {
 			/* GLGEN_VFLRSTAT bit will be cleared in ice_reset_vf */
+			mutex_lock(&vf->cfg_lock);
 			ice_reset_vf(vf, true);
+			mutex_unlock(&vf->cfg_lock);
+		}
 	}
 }
 
@@ -1804,7 +1817,9 @@ ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event)
 	if (!vf)
 		return;
 
+	mutex_lock(&vf->cfg_lock);
 	ice_vc_reset_vf(vf);
+	mutex_unlock(&vf->cfg_lock);
 }
 
 /**
-- 
GitLab


From d753aecb3d4b9401d24b752a5dd6845041128677 Mon Sep 17 00:00:00 2001
From: Valentin Schneider <valentin.schneider@arm.com>
Date: Fri, 22 Jan 2021 12:39:43 +0000
Subject: [PATCH 4300/4878] sched/topology: Make sched_init_numa() use a set
 for the deduplicating sort
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 620a6dc40754dc218f5b6389b5d335e9a107fd29 upstream.

The deduplicating sort in sched_init_numa() assumes that the first line in
the distance table contains all unique values in the entire table. I've
been trying to pen what this exactly means for the topology, but it's not
straightforward. For instance, topology.c uses this example:

  node   0   1   2   3
    0:  10  20  20  30
    1:  20  10  20  20
    2:  20  20  10  20
    3:  30  20  20  10

  0 ----- 1
  |     / |
  |   /   |
  | /     |
  2 ----- 3

Which works out just fine. However, if we swap nodes 0 and 1:

  1 ----- 0
  |     / |
  |   /   |
  | /     |
  2 ----- 3

we get this distance table:

  node   0  1  2  3
    0:  10 20 20 20
    1:  20 10 20 30
    2:  20 20 10 20
    3:  20 30 20 10

Which breaks the deduplicating sort (non-representative first line). In
this case this would just be a renumbering exercise, but it so happens that
we can have a deduplicating sort that goes through the whole table in O(n²)
at the extra cost of a temporary memory allocation (i.e. any form of set).

The ACPI spec (SLIT) mentions distances are encoded on 8 bits. Following
this, implement the set as a 256-bits bitmap. Should this not be
satisfactory (i.e. we want to support 32-bit values), then we'll have to go
for some other sparse set implementation.

This has the added benefit of letting us allocate just the right amount of
memory for sched_domains_numa_distance[], rather than an arbitrary
(nr_node_ids + 1).

Note: DT binding equivalent (distance-map) decodes distances as 32-bit
values.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210122123943.1217-2-valentin.schneider@arm.com
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/topology.h |  1 +
 kernel/sched/topology.c  | 99 +++++++++++++++++++---------------------
 2 files changed, 49 insertions(+), 51 deletions(-)

diff --git a/include/linux/topology.h b/include/linux/topology.h
index ad03df1cc2667..7634cd737061c 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -48,6 +48,7 @@ int arch_update_cpu_topology(void);
 /* Conform to ACPI 2.0 SLIT distance definitions */
 #define LOCAL_DISTANCE		10
 #define REMOTE_DISTANCE		20
+#define DISTANCE_BITS           8
 #ifndef node_distance
 #define node_distance(from,to)	((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
 #endif
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index dd77702260869..f2951eba9592a 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1549,66 +1549,58 @@ static void init_numa_topology_type(void)
 	}
 }
 
+
+#define NR_DISTANCE_VALUES (1 << DISTANCE_BITS)
+
 void sched_init_numa(void)
 {
-	int next_distance, curr_distance = node_distance(0, 0);
 	struct sched_domain_topology_level *tl;
-	int level = 0;
-	int i, j, k;
-
-	sched_domains_numa_distance = kzalloc(sizeof(int) * (nr_node_ids + 1), GFP_KERNEL);
-	if (!sched_domains_numa_distance)
-		return;
-
-	/* Includes NUMA identity node at level 0. */
-	sched_domains_numa_distance[level++] = curr_distance;
-	sched_domains_numa_levels = level;
+	unsigned long *distance_map;
+	int nr_levels = 0;
+	int i, j;
 
 	/*
 	 * O(nr_nodes^2) deduplicating selection sort -- in order to find the
 	 * unique distances in the node_distance() table.
-	 *
-	 * Assumes node_distance(0,j) includes all distances in
-	 * node_distance(i,j) in order to avoid cubic time.
 	 */
-	next_distance = curr_distance;
+	distance_map = bitmap_alloc(NR_DISTANCE_VALUES, GFP_KERNEL);
+	if (!distance_map)
+		return;
+
+	bitmap_zero(distance_map, NR_DISTANCE_VALUES);
 	for (i = 0; i < nr_node_ids; i++) {
 		for (j = 0; j < nr_node_ids; j++) {
-			for (k = 0; k < nr_node_ids; k++) {
-				int distance = node_distance(i, k);
-
-				if (distance > curr_distance &&
-				    (distance < next_distance ||
-				     next_distance == curr_distance))
-					next_distance = distance;
-
-				/*
-				 * While not a strong assumption it would be nice to know
-				 * about cases where if node A is connected to B, B is not
-				 * equally connected to A.
-				 */
-				if (sched_debug() && node_distance(k, i) != distance)
-					sched_numa_warn("Node-distance not symmetric");
+			int distance = node_distance(i, j);
 
-				if (sched_debug() && i && !find_numa_distance(distance))
-					sched_numa_warn("Node-0 not representative");
+			if (distance < LOCAL_DISTANCE || distance >= NR_DISTANCE_VALUES) {
+				sched_numa_warn("Invalid distance value range");
+				return;
 			}
-			if (next_distance != curr_distance) {
-				sched_domains_numa_distance[level++] = next_distance;
-				sched_domains_numa_levels = level;
-				curr_distance = next_distance;
-			} else break;
+
+			bitmap_set(distance_map, distance, 1);
 		}
+	}
+	/*
+	 * We can now figure out how many unique distance values there are and
+	 * allocate memory accordingly.
+	 */
+	nr_levels = bitmap_weight(distance_map, NR_DISTANCE_VALUES);
 
-		/*
-		 * In case of sched_debug() we verify the above assumption.
-		 */
-		if (!sched_debug())
-			break;
+	sched_domains_numa_distance = kcalloc(nr_levels, sizeof(int), GFP_KERNEL);
+	if (!sched_domains_numa_distance) {
+		bitmap_free(distance_map);
+		return;
+	}
+
+	for (i = 0, j = 0; i < nr_levels; i++, j++) {
+		j = find_next_bit(distance_map, NR_DISTANCE_VALUES, j);
+		sched_domains_numa_distance[i] = j;
 	}
 
+	bitmap_free(distance_map);
+
 	/*
-	 * 'level' contains the number of unique distances
+	 * 'nr_levels' contains the number of unique distances
 	 *
 	 * The sched_domains_numa_distance[] array includes the actual distance
 	 * numbers.
@@ -1617,15 +1609,15 @@ void sched_init_numa(void)
 	/*
 	 * Here, we should temporarily reset sched_domains_numa_levels to 0.
 	 * If it fails to allocate memory for array sched_domains_numa_masks[][],
-	 * the array will contain less then 'level' members. This could be
+	 * the array will contain less then 'nr_levels' members. This could be
 	 * dangerous when we use it to iterate array sched_domains_numa_masks[][]
 	 * in other functions.
 	 *
-	 * We reset it to 'level' at the end of this function.
+	 * We reset it to 'nr_levels' at the end of this function.
 	 */
 	sched_domains_numa_levels = 0;
 
-	sched_domains_numa_masks = kzalloc(sizeof(void *) * level, GFP_KERNEL);
+	sched_domains_numa_masks = kzalloc(sizeof(void *) * nr_levels, GFP_KERNEL);
 	if (!sched_domains_numa_masks)
 		return;
 
@@ -1633,7 +1625,7 @@ void sched_init_numa(void)
 	 * Now for each level, construct a mask per node which contains all
 	 * CPUs of nodes that are that many hops away from us.
 	 */
-	for (i = 0; i < level; i++) {
+	for (i = 0; i < nr_levels; i++) {
 		sched_domains_numa_masks[i] =
 			kzalloc(nr_node_ids * sizeof(void *), GFP_KERNEL);
 		if (!sched_domains_numa_masks[i])
@@ -1641,12 +1633,17 @@ void sched_init_numa(void)
 
 		for (j = 0; j < nr_node_ids; j++) {
 			struct cpumask *mask = kzalloc(cpumask_size(), GFP_KERNEL);
+			int k;
+
 			if (!mask)
 				return;
 
 			sched_domains_numa_masks[i][j] = mask;
 
 			for_each_node(k) {
+				if (sched_debug() && (node_distance(j, k) != node_distance(k, j)))
+					sched_numa_warn("Node-distance not symmetric");
+
 				if (node_distance(j, k) > sched_domains_numa_distance[i])
 					continue;
 
@@ -1658,7 +1655,7 @@ void sched_init_numa(void)
 	/* Compute default topology size */
 	for (i = 0; sched_domain_topology[i].mask; i++);
 
-	tl = kzalloc((i + level + 1) *
+	tl = kzalloc((i + nr_levels) *
 			sizeof(struct sched_domain_topology_level), GFP_KERNEL);
 	if (!tl)
 		return;
@@ -1681,7 +1678,7 @@ void sched_init_numa(void)
 	/*
 	 * .. and append 'j' levels of NUMA goodness.
 	 */
-	for (j = 1; j < level; i++, j++) {
+	for (j = 1; j < nr_levels; i++, j++) {
 		tl[i] = (struct sched_domain_topology_level){
 			.mask = sd_numa_mask,
 			.sd_flags = cpu_numa_flags,
@@ -1693,8 +1690,8 @@ void sched_init_numa(void)
 
 	sched_domain_topology = tl;
 
-	sched_domains_numa_levels = level;
-	sched_max_numa_distance = sched_domains_numa_distance[level - 1];
+	sched_domains_numa_levels = nr_levels;
+	sched_max_numa_distance = sched_domains_numa_distance[nr_levels - 1];
 
 	init_numa_topology_type();
 }
-- 
GitLab


From 1312ef5ad0a533009b58bc37f655038cbf21ea82 Mon Sep 17 00:00:00 2001
From: Dietmar Eggemann <dietmar.eggemann@arm.com>
Date: Mon, 1 Feb 2021 10:53:53 +0100
Subject: [PATCH 4301/4878] sched/topology: Fix sched_domain_topology_level
 alloc in sched_init_numa()

commit 71e5f6644fb2f3304fcb310145ded234a37e7cc1 upstream.

Commit "sched/topology: Make sched_init_numa() use a set for the
deduplicating sort" allocates 'i + nr_levels (level)' instead of
'i + nr_levels + 1' sched_domain_topology_level.

This led to an Oops (on Arm64 juno with CONFIG_SCHED_DEBUG):

sched_init_domains
  build_sched_domains()
    __free_domain_allocs()
      __sdt_free() {
	...
        for_each_sd_topology(tl)
	  ...
          sd = *per_cpu_ptr(sdd->sd, j); <--
	  ...
      }

Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: Barry Song <song.bao.hua@hisilicon.com>
Link: https://lkml.kernel.org/r/6000e39e-7d28-c360-9cd6-8798fd22a9bf@arm.com
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/sched/topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index f2951eba9592a..ff2c6d3ba6c79 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1655,7 +1655,7 @@ void sched_init_numa(void)
 	/* Compute default topology size */
 	for (i = 0; sched_domain_topology[i].mask; i++);
 
-	tl = kzalloc((i + nr_levels) *
+	tl = kzalloc((i + nr_levels + 1) *
 			sizeof(struct sched_domain_topology_level), GFP_KERNEL);
 	if (!tl)
 		return;
-- 
GitLab


From dcc3423c1dca6004e87be94727d86bf946f21ded Mon Sep 17 00:00:00 2001
From: Valentin Schneider <valentin.schneider@arm.com>
Date: Thu, 29 Apr 2021 22:53:27 -0700
Subject: [PATCH 4302/4878] ia64: ensure proper NUMA distance and possible map
 initialization

commit b22a8f7b4bde4e4ab73b64908ffd5d90ecdcdbfd upstream.

John Paul reported a warning about bogus NUMA distance values spurred by
commit:

  620a6dc40754 ("sched/topology: Make sched_init_numa() use a set for the deduplicating sort")

In this case, the afflicted machine comes up with a reported 256 possible
nodes, all of which are 0 distance away from one another.  This was
previously silently ignored, but is now caught by the aforementioned
commit.

The culprit is ia64's node_possible_map which remains unchanged from its
initialization value of NODE_MASK_ALL.  In John's case, the machine
doesn't have any SRAT nor SLIT table, but AIUI the possible map remains
untouched regardless of what ACPI tables end up being parsed.  Thus,
!online && possible nodes remain with a bogus distance of 0 (distances \in
[0, 9] are "reserved and have no meaning" as per the ACPI spec).

Follow x86 / drivers/base/arch_numa's example and set the possible map to
the parsed map, which in this case seems to be the online map.

Link: http://lore.kernel.org/r/255d6b5d-194e-eb0e-ecdd-97477a534441@physik.fu-berlin.de
Link: https://lkml.kernel.org/r/20210318130617.896309-1-valentin.schneider@arm.com
Fixes: 620a6dc40754 ("sched/topology: Make sched_init_numa() use a set for the deduplicating sort")
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: Sergei Trofimovich <slyfox@gentoo.org>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/ia64/kernel/acpi.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index a5636524af769..e2af6b172200e 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -446,7 +446,8 @@ void __init acpi_numa_fixup(void)
 	if (srat_num_cpus == 0) {
 		node_set_online(0);
 		node_cpuid[0].phys_id = hard_smp_processor_id();
-		return;
+		slit_distance(0, 0) = LOCAL_DISTANCE;
+		goto out;
 	}
 
 	/*
@@ -489,7 +490,7 @@ void __init acpi_numa_fixup(void)
 			for (j = 0; j < MAX_NUMNODES; j++)
 				slit_distance(i, j) = i == j ?
 					LOCAL_DISTANCE : REMOTE_DISTANCE;
-		return;
+		goto out;
 	}
 
 	memset(numa_slit, -1, sizeof(numa_slit));
@@ -514,6 +515,8 @@ void __init acpi_numa_fixup(void)
 		printk("\n");
 	}
 #endif
+out:
+	node_possible_map = node_online_map;
 }
 #endif				/* CONFIG_ACPI_NUMA */
 
-- 
GitLab


From fa65989a48679dd67d8d0fbccd4e204142d4c707 Mon Sep 17 00:00:00 2001
From: Nicolas Escande <nico.escande@gmail.com>
Date: Mon, 14 Feb 2022 18:32:14 +0100
Subject: [PATCH 4303/4878] mac80211: fix forwarded mesh frames AC & queue
 selection

commit 859ae7018316daa4adbc496012dcbbb458d7e510 upstream.

There are two problems with the current code that have been highlighted
with the AQL feature that is now enbaled by default.

First problem is in ieee80211_rx_h_mesh_fwding(),
ieee80211_select_queue_80211() is used on received packets to choose
the sending AC queue of the forwarding packet although this function
should only be called on TX packet (it uses ieee80211_tx_info).
This ends with forwarded mesh packets been sent on unrelated random AC
queue. To fix that, AC queue can directly be infered from skb->priority
which has been extracted from QOS info (see ieee80211_parse_qos()).

Second problem is the value of queue_mapping set on forwarded mesh
frames via skb_set_queue_mapping() is not the AC of the packet but a
hardware queue index. This may or may not work depending on AC to HW
queue mapping which is driver specific.

Both of these issues lead to improper AC selection while forwarding
mesh packets but more importantly due to improper airtime accounting
(which is done on a per STA, per AC basis) caused traffic stall with
the introduction of AQL.

Fixes: cf44012810cc ("mac80211: fix unnecessary frame drops in mesh fwding")
Fixes: d3c1597b8d1b ("mac80211: fix forwarded mesh frame queue mapping")
Co-developed-by: Remi Pommarel <repk@triplefau.lt>
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Signed-off-by: Nicolas Escande <nico.escande@gmail.com>
Link: https://lore.kernel.org/r/20220214173214.368862-1-nico.escande@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/rx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index d27c444a19ed1..1e7614abd947d 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2910,13 +2910,13 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	    ether_addr_equal(sdata->vif.addr, hdr->addr3))
 		return RX_CONTINUE;
 
-	ac = ieee80211_select_queue_80211(sdata, skb, hdr);
+	ac = ieee802_1d_to_ac[skb->priority];
 	q = sdata->vif.hw_queue[ac];
 	if (ieee80211_queue_stopped(&local->hw, q)) {
 		IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion);
 		return RX_DROP_MONITOR;
 	}
-	skb_set_queue_mapping(skb, q);
+	skb_set_queue_mapping(skb, ac);
 
 	if (!--mesh_hdr->ttl) {
 		if (!is_multicast_ether_addr(hdr->addr1))
-- 
GitLab


From e6d7f57f919f47cbeee9e608824abfdc0097f1c6 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 23 Feb 2022 19:35:36 -0800
Subject: [PATCH 4304/4878] net: stmmac: fix return value of __setup handler

commit e01b042e580f1fbf4fd8da467442451da00c7a90 upstream.

__setup() handlers should return 1 on success, i.e., the parameter
has been handled. A return of 0 causes the "option=value" string to be
added to init's environment strings, polluting it.

Fixes: 47dd7a540b8a ("net: add support for STMicroelectronics Ethernet controllers.")
Fixes: f3240e2811f0 ("stmmac: remove warning when compile as built-in (V2)")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Link: https://lore.kernel.org/r/20220224033536.25056-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 6d8a839fab22e..a46c32257de42 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5428,7 +5428,7 @@ static int __init stmmac_cmdline_opt(char *str)
 	char *opt;
 
 	if (!str || !*str)
-		return -EINVAL;
+		return 1;
 	while ((opt = strsep(&str, ",")) != NULL) {
 		if (!strncmp(opt, "debug:", 6)) {
 			if (kstrtoint(opt + 6, 0, &debug))
@@ -5459,11 +5459,11 @@ static int __init stmmac_cmdline_opt(char *str)
 				goto err;
 		}
 	}
-	return 0;
+	return 1;
 
 err:
 	pr_err("%s: ERROR broken module parameter conversion", __func__);
-	return -EINVAL;
+	return 1;
 }
 
 __setup("stmmaceth=", stmmac_cmdline_opt);
-- 
GitLab


From c9a066fe45930c45e0cc64a12ccf2c3fc339fea2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 24 Feb 2022 10:39:34 +0100
Subject: [PATCH 4305/4878] mac80211: treat some SAE auth steps as final

commit 94d9864cc86f572f881db9b842a78e9d075493ae upstream.

When we get anti-clogging token required (added by the commit
mentioned below), or the other status codes added by the later
commit 4e56cde15f7d ("mac80211: Handle special status codes in
SAE commit") we currently just pretend (towards the internal
state machine of authentication) that we didn't receive anything.

This has the undesirable consequence of retransmitting the prior
frame, which is not expected, because the timer is still armed.

If we just disarm the timer at that point, it would result in
the undesirable side effect of being in this state indefinitely
if userspace crashes, or so.

So to fix this, reset the timer and set a new auth_data->waiting
in order to have no more retransmissions, but to have the data
destroyed when the timer actually fires, which will only happen
if userspace didn't continue (i.e. crashed or abandoned it.)

Fixes: a4055e74a2ff ("mac80211: Don't destroy auth data in case of anti-clogging")
Reported-by: Jouni Malinen <j@w1.fi>
Link: https://lore.kernel.org/r/20220224103932.75964e1d7932.Ia487f91556f29daae734bf61f8181404642e1eec@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mac80211/ieee80211_i.h |  2 +-
 net/mac80211/mlme.c        | 16 ++++++++++++----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 7f2be08b72a56..fe8f586886b41 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -374,7 +374,7 @@ struct ieee80211_mgd_auth_data {
 
 	u8 key[WLAN_KEY_LEN_WEP104];
 	u8 key_len, key_idx;
-	bool done;
+	bool done, waiting;
 	bool peer_confirmed;
 	bool timeout_started;
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 778bf262418b5..0dba353d3f8fe 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -37,6 +37,7 @@
 #define IEEE80211_AUTH_TIMEOUT_SAE	(HZ * 2)
 #define IEEE80211_AUTH_MAX_TRIES	3
 #define IEEE80211_AUTH_WAIT_ASSOC	(HZ * 5)
+#define IEEE80211_AUTH_WAIT_SAE_RETRY	(HZ * 2)
 #define IEEE80211_ASSOC_TIMEOUT		(HZ / 5)
 #define IEEE80211_ASSOC_TIMEOUT_LONG	(HZ / 2)
 #define IEEE80211_ASSOC_TIMEOUT_SHORT	(HZ / 10)
@@ -2999,8 +3000,15 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		    (status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED ||
 		     (auth_transaction == 1 &&
 		      (status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT ||
-		       status_code == WLAN_STATUS_SAE_PK))))
+		       status_code == WLAN_STATUS_SAE_PK)))) {
+			/* waiting for userspace now */
+			ifmgd->auth_data->waiting = true;
+			ifmgd->auth_data->timeout =
+				jiffies + IEEE80211_AUTH_WAIT_SAE_RETRY;
+			ifmgd->auth_data->timeout_started = true;
+			run_again(sdata, ifmgd->auth_data->timeout);
 			return;
+		}
 
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
 			   mgmt->sa, status_code);
@@ -4526,10 +4534,10 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 	if (ifmgd->auth_data && ifmgd->auth_data->timeout_started &&
 	    time_after(jiffies, ifmgd->auth_data->timeout)) {
-		if (ifmgd->auth_data->done) {
+		if (ifmgd->auth_data->done || ifmgd->auth_data->waiting) {
 			/*
-			 * ok ... we waited for assoc but userspace didn't,
-			 * so let's just kill the auth data
+			 * ok ... we waited for assoc or continuation but
+			 * userspace didn't do it, so kill the auth data
 			 */
 			ieee80211_destroy_auth_data(sdata, false);
 		} else if (ieee80211_auth(sdata)) {
-- 
GitLab


From e1a82db1ebaf63d3d7cfbe1fef315393adfdf48e Mon Sep 17 00:00:00 2001
From: Slawomir Laba <slawomirx.laba@intel.com>
Date: Wed, 23 Feb 2022 13:38:43 +0100
Subject: [PATCH 4306/4878] iavf: Fix missing check for running netdev

commit d2c0f45fcceb0995f208c441d9c9a453623f9ccf upstream.

The driver was queueing reset_task regardless of the netdev
state.

Do not queue the reset task in iavf_change_mtu if netdev
is not running.

Fixes: fdd4044ffdc8 ("iavf: Remove timer for work triggering, use delaying work instead")
Signed-off-by: Slawomir Laba <slawomirx.laba@intel.com>
Signed-off-by: Phani Burra <phani.r.burra@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index de7794ebc7e73..07170b77d42b6 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -3317,8 +3317,11 @@ static int iavf_change_mtu(struct net_device *netdev, int new_mtu)
 		iavf_notify_client_l2_params(&adapter->vsi);
 		adapter->flags |= IAVF_FLAG_SERVICE_CLIENT_REQUESTED;
 	}
-	adapter->flags |= IAVF_FLAG_RESET_NEEDED;
-	queue_work(iavf_wq, &adapter->reset_task);
+
+	if (netif_running(netdev)) {
+		adapter->flags |= IAVF_FLAG_RESET_NEEDED;
+		queue_work(iavf_wq, &adapter->reset_task);
+	}
 
 	return 0;
 }
-- 
GitLab


From 6e0f986032c50e7d71a167f29f896da1e88cbccd Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 23 Feb 2022 19:35:28 -0800
Subject: [PATCH 4307/4878] net: sxgbe: fix return value of __setup handler

commit 50e06ddceeea263f57fe92baa677c638ecd65bb6 upstream.

__setup() handlers should return 1 on success, i.e., the parameter
has been handled. A return of 0 causes the "option=value" string to be
added to init's environment strings, polluting it.

Fixes: acc18c147b22 ("net: sxgbe: add EEE(Energy Efficient Ethernet) for Samsung sxgbe")
Fixes: 1edb9ca69e8a ("net: sxgbe: add basic framework for Samsung 10Gb ethernet driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Cc: Siva Reddy <siva.kallam@samsung.com>
Cc: Girish K S <ks.giri@samsung.com>
Cc: Byungho An <bh74.an@samsung.com>
Link: https://lore.kernel.org/r/20220224033528.24640-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
index 971f1e54b6526..b1dd6189638b3 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
@@ -2282,18 +2282,18 @@ static int __init sxgbe_cmdline_opt(char *str)
 	char *opt;
 
 	if (!str || !*str)
-		return -EINVAL;
+		return 1;
 	while ((opt = strsep(&str, ",")) != NULL) {
 		if (!strncmp(opt, "eee_timer:", 10)) {
 			if (kstrtoint(opt + 10, 0, &eee_timer))
 				goto err;
 		}
 	}
-	return 0;
+	return 1;
 
 err:
 	pr_err("%s: ERROR broken module parameter conversion\n", __func__);
-	return -EINVAL;
+	return 1;
 }
 
 __setup("sxgbeeth=", sxgbe_cmdline_opt);
-- 
GitLab


From 92b791771abd2ebbd85cbc4d17388f6bd939977f Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Thu, 24 Feb 2022 22:23:55 -0800
Subject: [PATCH 4308/4878] ibmvnic: register netdev after init of adapter

commit 570425f8c7c18b14fa8a2a58a0adb431968ad118 upstream.

Finish initializing the adapter before registering netdev so state
is consistent.

Fixes: c26eba03e407 ("ibmvnic: Update reset infrastructure to support tunable parameters")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index c7be7ab131b19..766e44a8c3210 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -5383,6 +5383,12 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
 		goto ibmvnic_dev_file_err;
 
 	netif_carrier_off(netdev);
+
+	adapter->state = VNIC_PROBED;
+
+	adapter->wait_for_reset = false;
+	adapter->last_reset_time = jiffies;
+
 	rc = register_netdev(netdev);
 	if (rc) {
 		dev_err(&dev->dev, "failed to register netdev rc=%d\n", rc);
@@ -5390,10 +5396,6 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
 	}
 	dev_info(&dev->dev, "ibmvnic registered\n");
 
-	adapter->state = VNIC_PROBED;
-
-	adapter->wait_for_reset = false;
-	adapter->last_reset_time = jiffies;
 	return 0;
 
 ibmvnic_register_fail:
-- 
GitLab


From 5f394102ee27dbf051a4e283390cd8d1759dacea Mon Sep 17 00:00:00 2001
From: Zheyu Ma <zheyuma97@gmail.com>
Date: Wed, 2 Mar 2022 20:24:23 +0800
Subject: [PATCH 4309/4878] net: arcnet: com20020: Fix null-ptr-deref in
 com20020pci_probe()

commit bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d upstream.

During driver initialization, the pointer of card info, i.e. the
variable 'ci' is required. However, the definition of
'com20020pci_id_table' reveals that this field is empty for some
devices, which will cause null pointer dereference when initializing
these devices.

The following log reveals it:

[    3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
[    3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci]
[    3.975181] Call Trace:
[    3.976208]  local_pci_probe+0x13f/0x210
[    3.977248]  pci_device_probe+0x34c/0x6d0
[    3.977255]  ? pci_uevent+0x470/0x470
[    3.978265]  really_probe+0x24c/0x8d0
[    3.978273]  __driver_probe_device+0x1b3/0x280
[    3.979288]  driver_probe_device+0x50/0x370

Fix this by checking whether the 'ci' is a null pointer first.

Fixes: 8c14f9c70327 ("ARCNET: add com20020 PCI IDs with metadata")
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/arcnet/com20020-pci.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/arcnet/com20020-pci.c b/drivers/net/arcnet/com20020-pci.c
index eb7f76753c9c0..9f44e2e458df1 100644
--- a/drivers/net/arcnet/com20020-pci.c
+++ b/drivers/net/arcnet/com20020-pci.c
@@ -136,6 +136,9 @@ static int com20020pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 
 	ci = (struct com20020_pci_card_info *)id->driver_data;
+	if (!ci)
+		return -EINVAL;
+
 	priv->ci = ci;
 	mm = &ci->misc_map;
 
-- 
GitLab


From 283c37e5429e0c5469b6ce785fec9da1248c7d14 Mon Sep 17 00:00:00 2001
From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Date: Wed, 2 Mar 2022 09:59:27 -0800
Subject: [PATCH 4310/4878] ixgbe: xsk: change !netif_carrier_ok() handling in
 ixgbe_xmit_zc()

commit 6c7273a266759d9d36f7c862149f248bcdeddc0f upstream.

Commit c685c69fba71 ("ixgbe: don't do any AF_XDP zero-copy transmit if
netif is not OK") addressed the ring transient state when
MEM_TYPE_XSK_BUFF_POOL was being configured which in turn caused the
interface to through down/up. Maurice reported that when carrier is not
ok and xsk_pool is present on ring pair, ksoftirqd will consume 100% CPU
cycles due to the constant NAPI rescheduling as ixgbe_poll() states that
there is still some work to be done.

To fix this, do not set work_done to false for a !netif_carrier_ok().

Fixes: c685c69fba71 ("ixgbe: don't do any AF_XDP zero-copy transmit if netif is not OK")
Reported-by: Maurice Baijens <maurice.baijens@ellips.com>
Tested-by: Maurice Baijens <maurice.baijens@ellips.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
index d60da7a89092e..ca1a428b278e0 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
@@ -391,12 +391,14 @@ static bool ixgbe_xmit_zc(struct ixgbe_ring *xdp_ring, unsigned int budget)
 	u32 cmd_type;
 
 	while (budget-- > 0) {
-		if (unlikely(!ixgbe_desc_unused(xdp_ring)) ||
-		    !netif_carrier_ok(xdp_ring->netdev)) {
+		if (unlikely(!ixgbe_desc_unused(xdp_ring))) {
 			work_done = false;
 			break;
 		}
 
+		if (!netif_carrier_ok(xdp_ring->netdev))
+			break;
+
 		if (!xsk_tx_peek_desc(pool, &desc))
 			break;
 
-- 
GitLab


From 667df6fe3ece20aaaefc8838659a7e0504cd9a32 Mon Sep 17 00:00:00 2001
From: Jann Horn <jannh@google.com>
Date: Fri, 18 Feb 2022 19:05:59 +0100
Subject: [PATCH 4311/4878] efivars: Respect "block" flag in
 efivar_entry_set_safe()

commit 258dd902022cb10c83671176688074879517fd21 upstream.

When the "block" flag is false, the old code would sometimes still call
check_var_size(), which wrongly tells ->query_variable_store() that it can
block.

As far as I can tell, this can't really materialize as a bug at the moment,
because ->query_variable_store only does something on X86 with generic EFI,
and in that configuration we always take the efivar_entry_set_nonblocking()
path.

Fixes: ca0e30dcaa53 ("efi: Add nonblocking option to efi_query_variable_store()")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220218180559.1432559-1-jannh@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/efi/vars.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index abdc8a6a39631..cae590bd08f27 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -742,6 +742,7 @@ int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
 {
 	const struct efivar_operations *ops;
 	efi_status_t status;
+	unsigned long varsize;
 
 	if (!__efivars)
 		return -EINVAL;
@@ -764,15 +765,17 @@ int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
 		return efivar_entry_set_nonblocking(name, vendor, attributes,
 						    size, data);
 
+	varsize = size + ucs2_strsize(name, 1024);
 	if (!block) {
 		if (down_trylock(&efivars_lock))
 			return -EBUSY;
+		status = check_var_size_nonblocking(attributes, varsize);
 	} else {
 		if (down_interruptible(&efivars_lock))
 			return -EINTR;
+		status = check_var_size(attributes, varsize);
 	}
 
-	status = check_var_size(attributes, size + ucs2_strsize(name, 1024));
 	if (status != EFI_SUCCESS) {
 		up(&efivars_lock);
 		return -ENOSPC;
-- 
GitLab


From 8b8ac465bf526a1241cd2eb1333d039c87911170 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Fri, 11 Feb 2022 10:27:04 +0000
Subject: [PATCH 4312/4878] firmware: arm_scmi: Remove space in MODULE_ALIAS
 name

commit 1ba603f56568c3b4c2542dfba07afa25f21dcff3 upstream.

modprobe can't handle spaces in aliases. Get rid of it to fix the issue.

Link: https://lore.kernel.org/r/20220211102704.128354-1-sudeep.holla@arm.com
Fixes: aa4f886f3893 ("firmware: arm_scmi: add basic driver infrastructure for SCMI")
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/arm_scmi/driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 7632232486645..745b7f9eb3351 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -979,7 +979,7 @@ static void __exit scmi_driver_exit(void)
 }
 module_exit(scmi_driver_exit);
 
-MODULE_ALIAS("platform: arm-scmi");
+MODULE_ALIAS("platform:arm-scmi");
 MODULE_AUTHOR("Sudeep Holla <sudeep.holla@arm.com>");
 MODULE_DESCRIPTION("ARM SCMI protocol driver");
 MODULE_LICENSE("GPL v2");
-- 
GitLab


From daaed6ced88c021798b7f739839091b5cc38000f Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@denx.de>
Date: Tue, 15 Feb 2022 09:05:14 -0300
Subject: [PATCH 4313/4878] ASoC: cs4265: Fix the duplicated control name

commit c5487b9cdea5c1ede38a7ec94db0fc59963c8e86 upstream.

Currently, the following error messages are seen during boot:

asoc-simple-card sound: control 2:0:0:SPDIF Switch:0 is already present
cs4265 1-004f: ASoC: failed to add widget SPDIF dapm kcontrol SPDIF Switch: -16

Quoting Mark Brown:

"The driver is just plain buggy, it defines both a regular SPIDF Switch
control and a SND_SOC_DAPM_SWITCH() called SPDIF both of which will
create an identically named control, it can never have loaded without
error.  One or both of those has to be renamed or they need to be
merged into one thing."

Fix the duplicated control name by combining the two SPDIF controls here
and move the register bits onto the DAPM widget and have DAPM control them.

Fixes: f853d6b3ba34 ("ASoC: cs4265: Add a S/PDIF enable switch")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220215120514.1760628-1-festevam@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/cs4265.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs4265.c b/sound/soc/codecs/cs4265.c
index d76be44f46b40..36b9e4fab099b 100644
--- a/sound/soc/codecs/cs4265.c
+++ b/sound/soc/codecs/cs4265.c
@@ -150,7 +150,6 @@ static const struct snd_kcontrol_new cs4265_snd_controls[] = {
 	SOC_SINGLE("E to F Buffer Disable Switch", CS4265_SPDIF_CTL1,
 				6, 1, 0),
 	SOC_ENUM("C Data Access", cam_mode_enum),
-	SOC_SINGLE("SPDIF Switch", CS4265_SPDIF_CTL2, 5, 1, 1),
 	SOC_SINGLE("Validity Bit Control Switch", CS4265_SPDIF_CTL2,
 				3, 1, 0),
 	SOC_ENUM("SPDIF Mono/Stereo", spdif_mono_stereo_enum),
@@ -186,7 +185,7 @@ static const struct snd_soc_dapm_widget cs4265_dapm_widgets[] = {
 
 	SND_SOC_DAPM_SWITCH("Loopback", SND_SOC_NOPM, 0, 0,
 			&loopback_ctl),
-	SND_SOC_DAPM_SWITCH("SPDIF", SND_SOC_NOPM, 0, 0,
+	SND_SOC_DAPM_SWITCH("SPDIF", CS4265_SPDIF_CTL2, 5, 1,
 			&spdif_switch),
 	SND_SOC_DAPM_SWITCH("DAC", CS4265_PWRCTL, 1, 1,
 			&dac_switch),
-- 
GitLab


From 43eaf1b17845a25e3e3a7d3f09c2f5ebd4a9d607 Mon Sep 17 00:00:00 2001
From: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Date: Tue, 15 Feb 2022 08:48:14 +0900
Subject: [PATCH 4314/4878] can: gs_usb: change active_channels's type from
 atomic_t to u8

commit 035b0fcf02707d3c9c2890dc1484b11aa5335eb1 upstream.

The driver uses an atomic_t variable: gs_usb:active_channels to keep
track of the number of opened channels in order to only allocate
memory for the URBs when this count changes from zero to one.

However, the driver does not decrement the counter when an error
occurs in gs_can_open(). This issue is fixed by changing the type from
atomic_t to u8 and by simplifying the logic accordingly.

It is safe to use an u8 here because the network stack big kernel lock
(a.k.a. rtnl_mutex) is being hold. For details, please refer to [1].

[1] https://lore.kernel.org/linux-can/CAMZ6Rq+sHpiw34ijPsmp7vbUpDtJwvVtdV7CvRZJsLixjAFfrg@mail.gmail.com/T/#t

Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/all/20220214234814.1321599-1-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/usb/gs_usb.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 3f759fae81fe2..e023c401f4f77 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -190,8 +190,8 @@ struct gs_can {
 struct gs_usb {
 	struct gs_can *canch[GS_MAX_INTF];
 	struct usb_anchor rx_submitted;
-	atomic_t active_channels;
 	struct usb_device *udev;
+	u8 active_channels;
 };
 
 /* 'allocate' a tx context.
@@ -588,7 +588,7 @@ static int gs_can_open(struct net_device *netdev)
 	if (rc)
 		return rc;
 
-	if (atomic_add_return(1, &parent->active_channels) == 1) {
+	if (!parent->active_channels) {
 		for (i = 0; i < GS_MAX_RX_URBS; i++) {
 			struct urb *urb;
 			u8 *buf;
@@ -689,6 +689,7 @@ static int gs_can_open(struct net_device *netdev)
 
 	dev->can.state = CAN_STATE_ERROR_ACTIVE;
 
+	parent->active_channels++;
 	if (!(dev->can.ctrlmode & CAN_CTRLMODE_LISTENONLY))
 		netif_start_queue(netdev);
 
@@ -704,7 +705,8 @@ static int gs_can_close(struct net_device *netdev)
 	netif_stop_queue(netdev);
 
 	/* Stop polling */
-	if (atomic_dec_and_test(&parent->active_channels))
+	parent->active_channels--;
+	if (!parent->active_channels)
 		usb_kill_anchored_urbs(&parent->rx_submitted);
 
 	/* Stop sending URBs */
@@ -983,8 +985,6 @@ static int gs_usb_probe(struct usb_interface *intf,
 
 	init_usb_anchor(&dev->rx_submitted);
 
-	atomic_set(&dev->active_channels, 0);
-
 	usb_set_intfdata(intf, dev);
 	dev->udev = interface_to_usbdev(intf);
 
-- 
GitLab


From 0632854fb171ca46a32193a8666c82baf324e253 Mon Sep 17 00:00:00 2001
From: Brian Norris <briannorris@chromium.org>
Date: Fri, 14 Jan 2022 15:02:07 -0800
Subject: [PATCH 4315/4878] arm64: dts: rockchip: Switch RK3399-Gru DP to SPDIF
 output

commit b5fbaf7d779f5f02b7f75b080e7707222573be2a upstream.

Commit b18c6c3c7768 ("ASoC: rockchip: cdn-dp sound output use spdif")
switched the platform to SPDIF, but we didn't fix up the device tree.

Drop the pinctrl settings, because the 'spdif_bus' pins are either:
 * unused (on kevin, bob), so the settings is ~harmless
 * used by a different function (on scarlet), which causes probe
   failures (!!)

Fixes: b18c6c3c7768 ("ASoC: rockchip: cdn-dp sound output use spdif")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20220114150129.v2.1.I46f64b00508d9dff34abe1c3e8d2defdab4ea1e5@changeid
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 765b24a2bcbf0..fb0a13cad6c93 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
@@ -281,7 +281,7 @@
 
 	sound: sound {
 		compatible = "rockchip,rk3399-gru-sound";
-		rockchip,cpu = <&i2s0 &i2s2>;
+		rockchip,cpu = <&i2s0 &spdif>;
 	};
 };
 
@@ -432,10 +432,6 @@ ap_i2c_audio: &i2c8 {
 	status = "okay";
 };
 
-&i2s2 {
-	status = "okay";
-};
-
 &io_domains {
 	status = "okay";
 
@@ -532,6 +528,17 @@ ap_i2c_audio: &i2c8 {
 	vqmmc-supply = <&ppvar_sd_card_io>;
 };
 
+&spdif {
+	status = "okay";
+
+	/*
+	 * SPDIF is routed internally to DP; we either don't use these pins, or
+	 * mux them to something else.
+	 */
+	/delete-property/ pinctrl-0;
+	/delete-property/ pinctrl-names;
+};
+
 &spi1 {
 	status = "okay";
 
-- 
GitLab


From fefe4cb4a6403d24dd227b3a5667f462ba17dce9 Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <vinschen@redhat.com>
Date: Wed, 16 Feb 2022 14:31:35 +0100
Subject: [PATCH 4316/4878] igc: igc_read_phy_reg_gpy: drop premature return

commit fda2635466cd26ad237e1bc5d3f6a60f97ad09b6 upstream.

igc_read_phy_reg_gpy checks the return value from igc_read_phy_reg_mdic
and if it's not 0, returns immediately. By doing this, it leaves the HW
semaphore in the acquired state.

Drop this premature return statement, the function returns after
releasing the semaphore immediately anyway.

Fixes: 5586838fe9ce ("igc: Add code for PHY support")
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/igc/igc_phy.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_phy.c b/drivers/net/ethernet/intel/igc/igc_phy.c
index 8e1799508edc4..2f7cacc5bdbe6 100644
--- a/drivers/net/ethernet/intel/igc/igc_phy.c
+++ b/drivers/net/ethernet/intel/igc/igc_phy.c
@@ -781,8 +781,6 @@ s32 igc_read_phy_reg_gpy(struct igc_hw *hw, u32 offset, u16 *data)
 		if (ret_val)
 			return ret_val;
 		ret_val = igc_read_phy_reg_mdic(hw, offset, data);
-		if (ret_val)
-			return ret_val;
 		hw->phy.ops.release(hw);
 	} else {
 		ret_val = igc_read_xmdio_reg(hw, (u16)offset, dev_addr,
-- 
GitLab


From 6b6341049086e9a20a33695f8c4ebb6ba3d4e073 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Wed, 16 Feb 2022 15:37:38 +0000
Subject: [PATCH 4317/4878] ARM: Fix kgdb breakpoint for Thumb2

commit d920eaa4c4559f59be7b4c2d26fa0a2e1aaa3da9 upstream.

The kgdb code needs to register an undef hook for the Thumb UDF
instruction that will fault in order to be functional on Thumb2
platforms.

Reported-by: Johannes Stezenbach <js@sig21.net>
Tested-by: Johannes Stezenbach <js@sig21.net>
Fixes: 5cbad0ebf45c ("kgdb: support for ARCH=arm")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/kgdb.c | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/arch/arm/kernel/kgdb.c b/arch/arm/kernel/kgdb.c
index 7bd30c0a4280d..22f937e6f3ffb 100644
--- a/arch/arm/kernel/kgdb.c
+++ b/arch/arm/kernel/kgdb.c
@@ -154,22 +154,38 @@ static int kgdb_compiled_brk_fn(struct pt_regs *regs, unsigned int instr)
 	return 0;
 }
 
-static struct undef_hook kgdb_brkpt_hook = {
+static struct undef_hook kgdb_brkpt_arm_hook = {
 	.instr_mask		= 0xffffffff,
 	.instr_val		= KGDB_BREAKINST,
-	.cpsr_mask		= MODE_MASK,
+	.cpsr_mask		= PSR_T_BIT | MODE_MASK,
 	.cpsr_val		= SVC_MODE,
 	.fn			= kgdb_brk_fn
 };
 
-static struct undef_hook kgdb_compiled_brkpt_hook = {
+static struct undef_hook kgdb_brkpt_thumb_hook = {
+	.instr_mask		= 0xffff,
+	.instr_val		= KGDB_BREAKINST & 0xffff,
+	.cpsr_mask		= PSR_T_BIT | MODE_MASK,
+	.cpsr_val		= PSR_T_BIT | SVC_MODE,
+	.fn			= kgdb_brk_fn
+};
+
+static struct undef_hook kgdb_compiled_brkpt_arm_hook = {
 	.instr_mask		= 0xffffffff,
 	.instr_val		= KGDB_COMPILED_BREAK,
-	.cpsr_mask		= MODE_MASK,
+	.cpsr_mask		= PSR_T_BIT | MODE_MASK,
 	.cpsr_val		= SVC_MODE,
 	.fn			= kgdb_compiled_brk_fn
 };
 
+static struct undef_hook kgdb_compiled_brkpt_thumb_hook = {
+	.instr_mask		= 0xffff,
+	.instr_val		= KGDB_COMPILED_BREAK & 0xffff,
+	.cpsr_mask		= PSR_T_BIT | MODE_MASK,
+	.cpsr_val		= PSR_T_BIT | SVC_MODE,
+	.fn			= kgdb_compiled_brk_fn
+};
+
 static int __kgdb_notify(struct die_args *args, unsigned long cmd)
 {
 	struct pt_regs *regs = args->regs;
@@ -210,8 +226,10 @@ int kgdb_arch_init(void)
 	if (ret != 0)
 		return ret;
 
-	register_undef_hook(&kgdb_brkpt_hook);
-	register_undef_hook(&kgdb_compiled_brkpt_hook);
+	register_undef_hook(&kgdb_brkpt_arm_hook);
+	register_undef_hook(&kgdb_brkpt_thumb_hook);
+	register_undef_hook(&kgdb_compiled_brkpt_arm_hook);
+	register_undef_hook(&kgdb_compiled_brkpt_thumb_hook);
 
 	return 0;
 }
@@ -224,8 +242,10 @@ int kgdb_arch_init(void)
  */
 void kgdb_arch_exit(void)
 {
-	unregister_undef_hook(&kgdb_brkpt_hook);
-	unregister_undef_hook(&kgdb_compiled_brkpt_hook);
+	unregister_undef_hook(&kgdb_brkpt_arm_hook);
+	unregister_undef_hook(&kgdb_brkpt_thumb_hook);
+	unregister_undef_hook(&kgdb_compiled_brkpt_arm_hook);
+	unregister_undef_hook(&kgdb_compiled_brkpt_thumb_hook);
 	unregister_die_notifier(&kgdb_notifier);
 }
 
-- 
GitLab


From 85bf489c5c01fcfb46d586a1b90686a9b526f1b8 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 23 Feb 2022 20:46:35 +0100
Subject: [PATCH 4318/4878] ARM: 9182/1: mmu: fix returns from early_param()
 and __setup() functions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 7b83299e5b9385943a857d59e15cba270df20d7e upstream.

early_param() handlers should return 0 on success.
__setup() handlers should return 1 on success, i.e., the parameter
has been handled. A return of 0 would cause the "option=value" string
to be added to init's environment strings, polluting it.

../arch/arm/mm/mmu.c: In function 'test_early_cachepolicy':
../arch/arm/mm/mmu.c:215:1: error: no return statement in function returning non-void [-Werror=return-type]
../arch/arm/mm/mmu.c: In function 'test_noalign_setup':
../arch/arm/mm/mmu.c:221:1: error: no return statement in function returning non-void [-Werror=return-type]

Fixes: b849a60e0903 ("ARM: make cr_alignment read-only #ifndef CONFIG_CPU_CP15")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/mmu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 4df688f410728..3e3001998460b 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -212,12 +212,14 @@ early_param("ecc", early_ecc);
 static int __init early_cachepolicy(char *p)
 {
 	pr_warn("cachepolicy kernel parameter not supported without cp15\n");
+	return 0;
 }
 early_param("cachepolicy", early_cachepolicy);
 
 static int __init noalign_setup(char *__unused)
 {
 	pr_warn("noalign kernel parameter not supported without cp15\n");
+	return 1;
 }
 __setup("noalign", noalign_setup);
 
-- 
GitLab


From 2851b76e5fd0ed80402d433ed0d28f970c0e67ff Mon Sep 17 00:00:00 2001
From: Amit Cohen <amcohen@nvidia.com>
Date: Wed, 2 Mar 2022 18:14:46 +0200
Subject: [PATCH 4319/4878] selftests: mlxsw: tc_police_scale: Make test more
 robust

commit dc9752075341e7beb653e37c6f4a3723074dc8bc upstream.

The test adds tc filters and checks how many of them were offloaded by
grepping for 'in_hw'.

iproute2 commit f4cd4f127047 ("tc: add skip_hw and skip_sw to control
action offload") added offload indication to tc actions, producing the
following output:

 $ tc filter show dev swp2 ingress
 ...
 filter protocol ipv6 pref 1000 flower chain 0 handle 0x7c0
   eth_type ipv6
   dst_ip 2001:db8:1::7bf
   skip_sw
   in_hw in_hw_count 1
         action order 1:  police 0x7c0 rate 10Mbit burst 100Kb mtu 2Kb action drop overhead 0b
         ref 1 bind 1
         not_in_hw
         used_hw_stats immediate

The current grep expression matches on both 'in_hw' and 'not_in_hw',
resulting in incorrect results.

Fix that by using JSON output instead.

Fixes: 5061e773264b ("selftests: mlxsw: Add scale test for tc-police")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh
index 3e3e06ea5703c..86e787895f78b 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh
@@ -60,7 +60,8 @@ __tc_police_test()
 
 	tc_police_rules_create $count $should_fail
 
-	offload_count=$(tc filter show dev $swp1 ingress | grep in_hw | wc -l)
+	offload_count=$(tc -j filter show dev $swp1 ingress |
+			jq "[.[] | select(.options.in_hw == true)] | length")
 	((offload_count == count))
 	check_err_fail $should_fail $? "tc police offload count"
 }
-- 
GitLab


From 223744f5213311abdd2fcabe08c3bae19a9c1716 Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Tue, 15 Feb 2022 22:00:36 -0600
Subject: [PATCH 4320/4878] pinctrl: sunxi: Use unique lockdep classes for IRQs

commit bac129dbc6560dfeb634c03f0c08b78024e71915 upstream.

This driver, like several others, uses a chained IRQ for each GPIO bank,
and forwards .irq_set_wake to the GPIO bank's upstream IRQ. As a result,
a call to irq_set_irq_wake() needs to lock both the upstream and
downstream irq_desc's. Lockdep considers this to be a possible deadlock
when the irq_desc's share lockdep classes, which they do by default:

 ============================================
 WARNING: possible recursive locking detected
 5.17.0-rc3-00394-gc849047c2473 #1 Not tainted
 --------------------------------------------
 init/307 is trying to acquire lock:
 c2dfe27c (&irq_desc_lock_class){-.-.}-{2:2}, at: __irq_get_desc_lock+0x58/0xa0

 but task is already holding lock:
 c3c0ac7c (&irq_desc_lock_class){-.-.}-{2:2}, at: __irq_get_desc_lock+0x58/0xa0

 other info that might help us debug this:
  Possible unsafe locking scenario:

        CPU0
        ----
   lock(&irq_desc_lock_class);
   lock(&irq_desc_lock_class);

  *** DEADLOCK ***

  May be due to missing lock nesting notation

 4 locks held by init/307:
  #0: c1f29f18 (system_transition_mutex){+.+.}-{3:3}, at: __do_sys_reboot+0x90/0x23c
  #1: c20f7760 (&dev->mutex){....}-{3:3}, at: device_shutdown+0xf4/0x224
  #2: c2e804d8 (&dev->mutex){....}-{3:3}, at: device_shutdown+0x104/0x224
  #3: c3c0ac7c (&irq_desc_lock_class){-.-.}-{2:2}, at: __irq_get_desc_lock+0x58/0xa0

 stack backtrace:
 CPU: 0 PID: 307 Comm: init Not tainted 5.17.0-rc3-00394-gc849047c2473 #1
 Hardware name: Allwinner sun8i Family
  unwind_backtrace from show_stack+0x10/0x14
  show_stack from dump_stack_lvl+0x68/0x90
  dump_stack_lvl from __lock_acquire+0x1680/0x31a0
  __lock_acquire from lock_acquire+0x148/0x3dc
  lock_acquire from _raw_spin_lock_irqsave+0x50/0x6c
  _raw_spin_lock_irqsave from __irq_get_desc_lock+0x58/0xa0
  __irq_get_desc_lock from irq_set_irq_wake+0x2c/0x19c
  irq_set_irq_wake from irq_set_irq_wake+0x13c/0x19c
    [tail call from sunxi_pinctrl_irq_set_wake]
  irq_set_irq_wake from gpio_keys_suspend+0x80/0x1a4
  gpio_keys_suspend from gpio_keys_shutdown+0x10/0x2c
  gpio_keys_shutdown from device_shutdown+0x180/0x224
  device_shutdown from __do_sys_reboot+0x134/0x23c
  __do_sys_reboot from ret_fast_syscall+0x0/0x1c

However, this can never deadlock because the upstream and downstream
IRQs are never the same (nor do they even involve the same irqchip).

Silence this erroneous lockdep splat by applying what appears to be the
usual fix of moving the GPIO IRQs to separate lockdep classes.

Fixes: a59c99d9eaf9 ("pinctrl: sunxi: Forward calls to irq_set_irq_wake")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220216040037.22730-1-samuel@sholland.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pinctrl/sunxi/pinctrl-sunxi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index e42a3a0005a72..be7f4f95f455d 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -36,6 +36,13 @@
 #include "../core.h"
 #include "pinctrl-sunxi.h"
 
+/*
+ * These lock classes tell lockdep that GPIO IRQs are in a different
+ * category than their parents, so it won't report false recursion.
+ */
+static struct lock_class_key sunxi_pinctrl_irq_lock_class;
+static struct lock_class_key sunxi_pinctrl_irq_request_class;
+
 static struct irq_chip sunxi_pinctrl_edge_irq_chip;
 static struct irq_chip sunxi_pinctrl_level_irq_chip;
 
@@ -1552,6 +1559,8 @@ int sunxi_pinctrl_init_with_variant(struct platform_device *pdev,
 	for (i = 0; i < (pctl->desc->irq_banks * IRQ_PER_BANK); i++) {
 		int irqno = irq_create_mapping(pctl->domain, i);
 
+		irq_set_lockdep_class(irqno, &sunxi_pinctrl_irq_lock_class,
+				      &sunxi_pinctrl_irq_request_class);
 		irq_set_chip_and_handler(irqno, &sunxi_pinctrl_edge_irq_chip,
 					 handle_edge_irq);
 		irq_set_chip_data(irqno, pctl);
-- 
GitLab


From 9d8a11d74de547093f1848ee4e5886a31c77aa97 Mon Sep 17 00:00:00 2001
From: Sasha Neftin <sasha.neftin@intel.com>
Date: Sun, 20 Feb 2022 09:29:15 +0200
Subject: [PATCH 4321/4878] igc: igc_write_phy_reg_gpy: drop premature return

commit c4208653a327a09da1e9e7b10299709b6d9b17bf upstream.

Similar to "igc_read_phy_reg_gpy: drop premature return" patch.
igc_write_phy_reg_gpy checks the return value from igc_write_phy_reg_mdic
and if it's not 0, returns immediately. By doing this, it leaves the HW
semaphore in the acquired state.

Drop this premature return statement, the function returns after
releasing the semaphore immediately anyway.

Fixes: 5586838fe9ce ("igc: Add code for PHY support")
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Reported-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/igc/igc_phy.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_phy.c b/drivers/net/ethernet/intel/igc/igc_phy.c
index 2f7cacc5bdbe6..e380b7a3ea63b 100644
--- a/drivers/net/ethernet/intel/igc/igc_phy.c
+++ b/drivers/net/ethernet/intel/igc/igc_phy.c
@@ -748,8 +748,6 @@ s32 igc_write_phy_reg_gpy(struct igc_hw *hw, u32 offset, u16 data)
 		if (ret_val)
 			return ret_val;
 		ret_val = igc_write_phy_reg_mdic(hw, offset, data);
-		if (ret_val)
-			return ret_val;
 		hw->phy.ops.release(hw);
 	} else {
 		ret_val = igc_write_xmdio_reg(hw, (u16)offset, dev_addr,
-- 
GitLab


From 6acbc8875282d3ca8a73fa93cd7a9b166de5019c Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Thu, 24 Feb 2022 22:23:51 -0800
Subject: [PATCH 4322/4878] ibmvnic: free reset-work-item when flushing

commit 8d0657f39f487d904fca713e0bc39c2707382553 upstream.

Fix a tiny memory leak when flushing the reset work queue.

Fixes: 2770a7984db5 ("ibmvnic: Introduce hard reset recovery")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 766e44a8c3210..de58824f4c18c 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -2354,8 +2354,10 @@ static int ibmvnic_reset(struct ibmvnic_adapter *adapter,
 	 * flush reset queue and process this reset
 	 */
 	if (adapter->force_reset_recovery && !list_empty(&adapter->rwi_list)) {
-		list_for_each_safe(entry, tmp_entry, &adapter->rwi_list)
+		list_for_each_safe(entry, tmp_entry, &adapter->rwi_list) {
 			list_del(entry);
+			kfree(list_entry(entry, struct ibmvnic_rwi, list));
+		}
 	}
 	rwi->reset_reason = reason;
 	list_add_tail(&rwi->list, &adapter->rwi_list);
-- 
GitLab


From 49aa9c9c7fa7c580d8f9f65b7bd05e537a4a3e4b Mon Sep 17 00:00:00 2001
From: Hugh Dickins <hughd@google.com>
Date: Fri, 4 Mar 2022 20:29:01 -0800
Subject: [PATCH 4323/4878] memfd: fix F_SEAL_WRITE after shmem huge page
 allocated

commit f2b277c4d1c63a85127e8aa2588e9cc3bd21cb99 upstream.

Wangyong reports: after enabling tmpfs filesystem to support transparent
hugepage with the following command:

  echo always > /sys/kernel/mm/transparent_hugepage/shmem_enabled

the docker program tries to add F_SEAL_WRITE through the following
command, but it fails unexpectedly with errno EBUSY:

  fcntl(5, F_ADD_SEALS, F_SEAL_WRITE) = -1.

That is because memfd_tag_pins() and memfd_wait_for_pins() were never
updated for shmem huge pages: checking page_mapcount() against
page_count() is hopeless on THP subpages - they need to check
total_mapcount() against page_count() on THP heads only.

Make memfd_tag_pins() (compared > 1) as strict as memfd_wait_for_pins()
(compared != 1): either can be justified, but given the non-atomic
total_mapcount() calculation, it is better now to be strict.  Bear in
mind that total_mapcount() itself scans all of the THP subpages, when
choosing to take an XA_CHECK_SCHED latency break.

Also fix the unlikely xa_is_value() case in memfd_wait_for_pins(): if a
page has been swapped out since memfd_tag_pins(), then its refcount must
have fallen, and so it can safely be untagged.

Link: https://lkml.kernel.org/r/a4f79248-df75-2c8c-3df-ba3317ccb5da@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Reported-by: wangyong <wang.yong12@zte.com.cn>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: CGEL ZTE <cgel.zte@gmail.com>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/memfd.c | 40 ++++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/mm/memfd.c b/mm/memfd.c
index 2647c898990c8..fae4142f7d254 100644
--- a/mm/memfd.c
+++ b/mm/memfd.c
@@ -31,20 +31,28 @@
 static void memfd_tag_pins(struct xa_state *xas)
 {
 	struct page *page;
-	unsigned int tagged = 0;
+	int latency = 0;
+	int cache_count;
 
 	lru_add_drain();
 
 	xas_lock_irq(xas);
 	xas_for_each(xas, page, ULONG_MAX) {
-		if (xa_is_value(page))
-			continue;
-		page = find_subpage(page, xas->xa_index);
-		if (page_count(page) - page_mapcount(page) > 1)
+		cache_count = 1;
+		if (!xa_is_value(page) &&
+		    PageTransHuge(page) && !PageHuge(page))
+			cache_count = HPAGE_PMD_NR;
+
+		if (!xa_is_value(page) &&
+		    page_count(page) - total_mapcount(page) != cache_count)
 			xas_set_mark(xas, MEMFD_TAG_PINNED);
+		if (cache_count != 1)
+			xas_set(xas, page->index + cache_count);
 
-		if (++tagged % XA_CHECK_SCHED)
+		latency += cache_count;
+		if (latency < XA_CHECK_SCHED)
 			continue;
+		latency = 0;
 
 		xas_pause(xas);
 		xas_unlock_irq(xas);
@@ -73,7 +81,8 @@ static int memfd_wait_for_pins(struct address_space *mapping)
 
 	error = 0;
 	for (scan = 0; scan <= LAST_SCAN; scan++) {
-		unsigned int tagged = 0;
+		int latency = 0;
+		int cache_count;
 
 		if (!xas_marked(&xas, MEMFD_TAG_PINNED))
 			break;
@@ -87,10 +96,14 @@ static int memfd_wait_for_pins(struct address_space *mapping)
 		xas_lock_irq(&xas);
 		xas_for_each_marked(&xas, page, ULONG_MAX, MEMFD_TAG_PINNED) {
 			bool clear = true;
-			if (xa_is_value(page))
-				continue;
-			page = find_subpage(page, xas.xa_index);
-			if (page_count(page) - page_mapcount(page) != 1) {
+
+			cache_count = 1;
+			if (!xa_is_value(page) &&
+			    PageTransHuge(page) && !PageHuge(page))
+				cache_count = HPAGE_PMD_NR;
+
+			if (!xa_is_value(page) && cache_count !=
+			    page_count(page) - total_mapcount(page)) {
 				/*
 				 * On the last scan, we clean up all those tags
 				 * we inserted; but make a note that we still
@@ -103,8 +116,11 @@ static int memfd_wait_for_pins(struct address_space *mapping)
 			}
 			if (clear)
 				xas_clear_mark(&xas, MEMFD_TAG_PINNED);
-			if (++tagged % XA_CHECK_SCHED)
+
+			latency += cache_count;
+			if (latency < XA_CHECK_SCHED)
 				continue;
+			latency = 0;
 
 			xas_pause(&xas);
 			xas_unlock_irq(&xas);
-- 
GitLab


From 8b20c1999d3a70c14608f26f752c9155e7db700a Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Thu, 24 Feb 2022 22:03:29 +0100
Subject: [PATCH 4324/4878] s390/extable: fix exception table sorting

commit c194dad21025dfd043210912653baab823bdff67 upstream.

s390 has a swap_ex_entry_fixup function, however it is not being used
since common code expects a swap_ex_entry_fixup define. If it is not
defined the default implementation will be used. So fix this by adding
a proper define.
However also the implementation of the function must be fixed, since a
NULL value for handler has a special meaning and must not be adjusted.

Luckily all of this doesn't fix a real bug currently: the main extable
is correctly sorted during build time, and for runtime sorting there
is currently no case where the handler field is not NULL.

Fixes: 05a68e892e89 ("s390/kernel: expand exception table logic to allow new handling options")
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/include/asm/extable.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/extable.h b/arch/s390/include/asm/extable.h
index 3beb294fd5531..ce0db8172aad1 100644
--- a/arch/s390/include/asm/extable.h
+++ b/arch/s390/include/asm/extable.h
@@ -69,8 +69,13 @@ static inline void swap_ex_entry_fixup(struct exception_table_entry *a,
 {
 	a->fixup = b->fixup + delta;
 	b->fixup = tmp.fixup - delta;
-	a->handler = b->handler + delta;
-	b->handler = tmp.handler - delta;
+	a->handler = b->handler;
+	if (a->handler)
+		a->handler += delta;
+	b->handler = tmp.handler;
+	if (b->handler)
+		b->handler -= delta;
 }
+#define swap_ex_entry_fixup swap_ex_entry_fixup
 
 #endif
-- 
GitLab


From 298f6fae544f422007db3b2a17f63bcc8eeac42c Mon Sep 17 00:00:00 2001
From: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Date: Tue, 25 Jan 2022 20:11:38 +0100
Subject: [PATCH 4325/4878] ARM: dts: switch timer config to common devkit8000
 devicetree

[ Upstream commit 64324ef337d0caa5798fa8fa3f6bbfbd3245868a ]

This patch allow lcd43 and lcd70 flavors to benefit from timer
evolution.

Fixes: e428e250fde6 ("ARM: dts: Configure system timers for omap3")
Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../arm/boot/dts/omap3-devkit8000-common.dtsi | 33 +++++++++++++++++++
 arch/arm/boot/dts/omap3-devkit8000.dts        | 33 -------------------
 2 files changed, 33 insertions(+), 33 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
index 2c19d6e255bdc..0df2b1dd07f60 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
+++ b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
@@ -158,6 +158,39 @@
 	status = "disabled";
 };
 
+/* Unusable as clocksource because of unreliable oscillator */
+&counter32k {
+	status = "disabled";
+};
+
+/* Unusable as clockevent because if unreliable oscillator, allow to idle */
+&timer1_target {
+	/delete-property/ti,no-reset-on-init;
+	/delete-property/ti,no-idle;
+	timer@0 {
+		/delete-property/ti,timer-alwon;
+	};
+};
+
+/* Preferred always-on timer for clocksource */
+&timer12_target {
+	ti,no-reset-on-init;
+	ti,no-idle;
+	timer@0 {
+		/* Always clocked by secure_32k_fck */
+	};
+};
+
+/* Preferred timer for clockevent */
+&timer2_target {
+	ti,no-reset-on-init;
+	ti,no-idle;
+	timer@0 {
+		assigned-clocks = <&gpt2_fck>;
+		assigned-clock-parents = <&sys_ck>;
+	};
+};
+
 &twl_gpio {
 	ti,use-leds;
 	/*
diff --git a/arch/arm/boot/dts/omap3-devkit8000.dts b/arch/arm/boot/dts/omap3-devkit8000.dts
index c2995a280729d..162d0726b0080 100644
--- a/arch/arm/boot/dts/omap3-devkit8000.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000.dts
@@ -14,36 +14,3 @@
 		display2 = &tv0;
 	};
 };
-
-/* Unusable as clocksource because of unreliable oscillator */
-&counter32k {
-	status = "disabled";
-};
-
-/* Unusable as clockevent because if unreliable oscillator, allow to idle */
-&timer1_target {
-	/delete-property/ti,no-reset-on-init;
-	/delete-property/ti,no-idle;
-	timer@0 {
-		/delete-property/ti,timer-alwon;
-	};
-};
-
-/* Preferred always-on timer for clocksource */
-&timer12_target {
-	ti,no-reset-on-init;
-	ti,no-idle;
-	timer@0 {
-		/* Always clocked by secure_32k_fck */
-	};
-};
-
-/* Preferred timer for clockevent */
-&timer2_target {
-	ti,no-reset-on-init;
-	ti,no-idle;
-	timer@0 {
-		assigned-clocks = <&gpt2_fck>;
-		assigned-clock-parents = <&sys_ck>;
-	};
-};
-- 
GitLab


From 44709130793bb7e23c929e54b248b0b3816944d6 Mon Sep 17 00:00:00 2001
From: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Date: Tue, 25 Jan 2022 20:11:39 +0100
Subject: [PATCH 4326/4878] ARM: dts: Use 32KiHz oscillator on devkit8000

[ Upstream commit 8840f5460a23759403f1f2860429dcbcc2f04a65 ]

Devkit8000 board seems to always used 32k_counter as clocksource.
Restore this behavior.

If clocksource is back to 32k_counter, timer12 is now the clockevent
source (as before) and timer2 is not longer needed here.

This commit fixes the same issue observed with commit 23885389dbbb
("ARM: dts: Fix timer regression for beagleboard revision c") when sleep
is blocked until hitting keys over serial console.

Fixes: aba1ad05da08 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
Fixes: e428e250fde6 ("ARM: dts: Configure system timers for omap3")
Signed-off-by: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap3-devkit8000-common.dtsi | 17 +----------------
 drivers/clocksource/timer-ti-dm-systimer.c     |  3 +--
 2 files changed, 2 insertions(+), 18 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
index 0df2b1dd07f60..6883ccb45600b 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
+++ b/arch/arm/boot/dts/omap3-devkit8000-common.dtsi
@@ -158,11 +158,6 @@
 	status = "disabled";
 };
 
-/* Unusable as clocksource because of unreliable oscillator */
-&counter32k {
-	status = "disabled";
-};
-
 /* Unusable as clockevent because if unreliable oscillator, allow to idle */
 &timer1_target {
 	/delete-property/ti,no-reset-on-init;
@@ -172,7 +167,7 @@
 	};
 };
 
-/* Preferred always-on timer for clocksource */
+/* Preferred timer for clockevent */
 &timer12_target {
 	ti,no-reset-on-init;
 	ti,no-idle;
@@ -181,16 +176,6 @@
 	};
 };
 
-/* Preferred timer for clockevent */
-&timer2_target {
-	ti,no-reset-on-init;
-	ti,no-idle;
-	timer@0 {
-		assigned-clocks = <&gpt2_fck>;
-		assigned-clock-parents = <&sys_ck>;
-	};
-};
-
 &twl_gpio {
 	ti,use-leds;
 	/*
diff --git a/drivers/clocksource/timer-ti-dm-systimer.c b/drivers/clocksource/timer-ti-dm-systimer.c
index 5c40ca1d4740e..1fccb457fcc54 100644
--- a/drivers/clocksource/timer-ti-dm-systimer.c
+++ b/drivers/clocksource/timer-ti-dm-systimer.c
@@ -241,8 +241,7 @@ static void __init dmtimer_systimer_assign_alwon(void)
 	bool quirk_unreliable_oscillator = false;
 
 	/* Quirk unreliable 32 KiHz oscillator with incomplete dts */
-	if (of_machine_is_compatible("ti,omap3-beagle-ab4") ||
-	    of_machine_is_compatible("timll,omap3-devkit8000")) {
+	if (of_machine_is_compatible("ti,omap3-beagle-ab4")) {
 		quirk_unreliable_oscillator = true;
 		counter_32k = -ENODEV;
 	}
-- 
GitLab


From 3afe488d5c9ce82564d6ce5f4706c2c47c652a9f Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Wed, 3 Nov 2021 21:00:17 +0100
Subject: [PATCH 4327/4878] soc: fsl: guts: Revert commit 3c0d64e867ed

[ Upstream commit b113737cf12964a20cc3ba1ddabe6229099661c6 ]

This reverts commit 3c0d64e867ed
("soc: fsl: guts: reuse machine name from device tree").

A following patch will fix the missing memory allocation failure check
instead.

Suggested-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/fsl/guts.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index 34810f9bb2ee7..6d7465afd6fd3 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -28,7 +28,6 @@ struct fsl_soc_die_attr {
 static struct guts *guts;
 static struct soc_device_attribute soc_dev_attr;
 static struct soc_device *soc_dev;
-static struct device_node *root;
 
 
 /* SoC die attribute definition for QorIQ platform */
@@ -138,7 +137,7 @@ static u32 fsl_guts_get_svr(void)
 
 static int fsl_guts_probe(struct platform_device *pdev)
 {
-	struct device_node *np = pdev->dev.of_node;
+	struct device_node *root, *np = pdev->dev.of_node;
 	struct device *dev = &pdev->dev;
 	struct resource *res;
 	const struct fsl_soc_die_attr *soc_die;
@@ -161,8 +160,9 @@ static int fsl_guts_probe(struct platform_device *pdev)
 	root = of_find_node_by_path("/");
 	if (of_property_read_string(root, "model", &machine))
 		of_property_read_string_index(root, "compatible", 0, &machine);
+	of_node_put(root);
 	if (machine)
-		soc_dev_attr.machine = machine;
+		soc_dev_attr.machine = devm_kstrdup(dev, machine, GFP_KERNEL);
 
 	svr = fsl_guts_get_svr();
 	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
@@ -197,7 +197,6 @@ static int fsl_guts_probe(struct platform_device *pdev)
 static int fsl_guts_remove(struct platform_device *dev)
 {
 	soc_device_unregister(soc_dev);
-	of_node_put(root);
 	return 0;
 }
 
-- 
GitLab


From 2824f6939e2623ce1484aa39fadcdcf772d0f484 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Wed, 3 Nov 2021 21:00:33 +0100
Subject: [PATCH 4328/4878] soc: fsl: guts: Add a missing memory allocation
 failure check

[ Upstream commit b9abe942cda43a1d46a0fd96efb54f1aa909f757 ]

If 'devm_kstrdup()' fails, we should return -ENOMEM.

While at it, move the 'of_node_put()' call in the error handling path and
after the 'machine' has been copied.
Better safe than sorry.

Fixes: a6fc3b698130 ("soc: fsl: add GUTS driver for QorIQ platforms")
Depends-on: fddacc7ff4dd ("soc: fsl: guts: Revert commit 3c0d64e867ed")
Suggested-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/fsl/guts.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c
index 6d7465afd6fd3..091e94c04f309 100644
--- a/drivers/soc/fsl/guts.c
+++ b/drivers/soc/fsl/guts.c
@@ -160,9 +160,14 @@ static int fsl_guts_probe(struct platform_device *pdev)
 	root = of_find_node_by_path("/");
 	if (of_property_read_string(root, "model", &machine))
 		of_property_read_string_index(root, "compatible", 0, &machine);
-	of_node_put(root);
-	if (machine)
+	if (machine) {
 		soc_dev_attr.machine = devm_kstrdup(dev, machine, GFP_KERNEL);
+		if (!soc_dev_attr.machine) {
+			of_node_put(root);
+			return -ENOMEM;
+		}
+	}
+	of_node_put(root);
 
 	svr = fsl_guts_get_svr();
 	soc_die = fsl_soc_die_match(svr, fsl_soc_die);
-- 
GitLab


From fbb810825aff29e8e594538e5ef3c7a2dd670f96 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Thu, 30 Dec 2021 09:45:43 +0800
Subject: [PATCH 4329/4878] soc: fsl: qe: Check of ioremap return value

[ Upstream commit a222fd8541394b36b13c89d1698d9530afd59a9c ]

As the possible failure of the ioremap(), the par_io could be NULL.
Therefore it should be better to check it and return error in order to
guarantee the success of the initiation.
But, I also notice that all the caller like mpc85xx_qe_par_io_init() in
`arch/powerpc/platforms/85xx/common.c` don't check the return value of
the par_io_init().
Actually, par_io_init() needs to check to handle the potential error.
I will submit another patch to fix that.
Anyway, par_io_init() itsely should be fixed.

Fixes: 7aa1aa6ecec2 ("QE: Move QE from arch/powerpc to drivers/soc")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/fsl/qe/qe_io.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/fsl/qe/qe_io.c b/drivers/soc/fsl/qe/qe_io.c
index 11ea08e97db75..1bb46d955d525 100644
--- a/drivers/soc/fsl/qe/qe_io.c
+++ b/drivers/soc/fsl/qe/qe_io.c
@@ -35,6 +35,8 @@ int par_io_init(struct device_node *np)
 	if (ret)
 		return ret;
 	par_io = ioremap(res.start, resource_size(&res));
+	if (!par_io)
+		return -ENOMEM;
 
 	if (!of_property_read_u32(np, "num-ports", &num_ports))
 		num_par_io_ports = num_ports;
-- 
GitLab


From 86027004bb9d4021f215027d981228200dc598bd Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 20 Dec 2021 11:32:39 +0100
Subject: [PATCH 4330/4878] ARM: tegra: Move panels to AUX bus

[ Upstream commit 8d3b01e0d4bb54368d73d0984466d72c2eeeac74 ]

Move the eDP panel on Venice 2 and Nyan boards into the corresponding
AUX bus device tree node. This allows us to avoid a nasty circular
dependency that would otherwise be created between the DPAUX and panel
nodes via the DDC/I2C phandle.

Fixes: eb481f9ac95c ("ARM: tegra: add Acer Chromebook 13 device tree")
Fixes: 59fe02cb079f ("ARM: tegra: Add DTS for the nyan-blaze board")
Fixes: 40e231c770a4 ("ARM: tegra: Enable eDP for Venice2")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/tegra124-nyan-big.dts   | 15 +++++++++------
 arch/arm/boot/dts/tegra124-nyan-blaze.dts | 15 +++++++++------
 arch/arm/boot/dts/tegra124-venice2.dts    | 14 +++++++-------
 3 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/arch/arm/boot/dts/tegra124-nyan-big.dts b/arch/arm/boot/dts/tegra124-nyan-big.dts
index 1d2aac2cb6d03..fdc1d64dfff9d 100644
--- a/arch/arm/boot/dts/tegra124-nyan-big.dts
+++ b/arch/arm/boot/dts/tegra124-nyan-big.dts
@@ -13,12 +13,15 @@
 		     "google,nyan-big-rev1", "google,nyan-big-rev0",
 		     "google,nyan-big", "google,nyan", "nvidia,tegra124";
 
-	panel: panel {
-		compatible = "auo,b133xtn01";
-
-		power-supply = <&vdd_3v3_panel>;
-		backlight = <&backlight>;
-		ddc-i2c-bus = <&dpaux>;
+	host1x@50000000 {
+		dpaux@545c0000 {
+			aux-bus {
+				panel: panel {
+					compatible = "auo,b133xtn01";
+					backlight = <&backlight>;
+				};
+			};
+		};
 	};
 
 	mmc@700b0400 { /* SD Card on this bus */
diff --git a/arch/arm/boot/dts/tegra124-nyan-blaze.dts b/arch/arm/boot/dts/tegra124-nyan-blaze.dts
index 677babde6460e..abdf4456826f8 100644
--- a/arch/arm/boot/dts/tegra124-nyan-blaze.dts
+++ b/arch/arm/boot/dts/tegra124-nyan-blaze.dts
@@ -15,12 +15,15 @@
 		     "google,nyan-blaze-rev0", "google,nyan-blaze",
 		     "google,nyan", "nvidia,tegra124";
 
-	panel: panel {
-		compatible = "samsung,ltn140at29-301";
-
-		power-supply = <&vdd_3v3_panel>;
-		backlight = <&backlight>;
-		ddc-i2c-bus = <&dpaux>;
+	host1x@50000000 {
+		dpaux@545c0000 {
+			aux-bus {
+				panel: panel {
+					compatible = "samsung,ltn140at29-301";
+					backlight = <&backlight>;
+				};
+			};
+		};
 	};
 
 	sound {
diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
index e6b54ac1ebd1a..84e2d24065e9a 100644
--- a/arch/arm/boot/dts/tegra124-venice2.dts
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -48,6 +48,13 @@
 		dpaux@545c0000 {
 			vdd-supply = <&vdd_3v3_panel>;
 			status = "okay";
+
+			aux-bus {
+				panel: panel {
+					compatible = "lg,lp129qe";
+					backlight = <&backlight>;
+				};
+			};
 		};
 	};
 
@@ -1079,13 +1086,6 @@
 		};
 	};
 
-	panel: panel {
-		compatible = "lg,lp129qe";
-		power-supply = <&vdd_3v3_panel>;
-		backlight = <&backlight>;
-		ddc-i2c-bus = <&dpaux>;
-	};
-
 	vdd_mux: regulator@0 {
 		compatible = "regulator-fixed";
 		regulator-name = "+VDD_MUX";
-- 
GitLab


From 320980b2496dc781b058e56c5dd244840aa6e83a Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Date: Thu, 24 Feb 2022 22:23:54 -0800
Subject: [PATCH 4331/4878] ibmvnic: complete init_done on transport events

[ Upstream commit 36491f2df9ad2501e5a4ec25d3d95d72bafd2781 ]

If we get a transport event, set the error and mark the init as
complete so the attempt to send crq-init or login fail sooner
rather than wait for the timeout.

Fixes: bbd669a868bb ("ibmvnic: Fix completion structure initialization")
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index de58824f4c18c..95bee3d915934 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -4923,6 +4923,13 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq,
 			adapter->fw_done_rc = -EIO;
 			complete(&adapter->fw_done);
 		}
+
+		/* if we got here during crq-init, retry crq-init */
+		if (!completion_done(&adapter->init_done)) {
+			adapter->init_done_rc = -EAGAIN;
+			complete(&adapter->init_done);
+		}
+
 		if (!completion_done(&adapter->stats_done))
 			complete(&adapter->stats_done);
 		if (test_bit(0, &adapter->resetting))
-- 
GitLab


From e6bc597fbcb20039ec84b3fdc762e368192889d6 Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Fri, 25 Feb 2022 04:37:27 -0800
Subject: [PATCH 4332/4878] net: chelsio: cxgb3: check the return value of
 pci_find_capability()

[ Upstream commit 767b9825ed1765894e569a3d698749d40d83762a ]

The function pci_find_capability() in t3_prep_adapter() can fail, so its
return value should be checked.

Fixes: 4d22de3e6cc4 ("Add support for the latest 1G/10G Chelsio adapter, T3")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/chelsio/cxgb3/t3_hw.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
index 7ff31d1026fb2..e0d34e64fc6cb 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
@@ -3678,6 +3678,8 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
 	    MAC_STATS_ACCUM_SECS : (MAC_STATS_ACCUM_SECS * 10);
 	adapter->params.pci.vpd_cap_addr =
 	    pci_find_capability(adapter->pdev, PCI_CAP_ID_VPD);
+	if (!adapter->params.pci.vpd_cap_addr)
+		return -ENODEV;
 	ret = get_vpd_params(adapter, &adapter->params.vpd);
 	if (ret < 0)
 		return ret;
-- 
GitLab


From 64e4305a03d0c906f620b532465c3c158a7201b8 Mon Sep 17 00:00:00 2001
From: Mateusz Palczewski <mateusz.palczewski@intel.com>
Date: Thu, 19 Aug 2021 08:47:40 +0000
Subject: [PATCH 4333/4878] iavf: Refactor iavf state machine tracking

[ Upstream commit 45eebd62999d37d13568723524b99d828e0ce22c ]

Replace state changes of iavf state machine
with a method that also tracks the previous
state the machine was on.

This change is required for further work with
refactoring init and watchdog state machines.

Tracking of previous state would help us
recover iavf after failure has occurred.

Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf.h        | 10 +++++
 drivers/net/ethernet/intel/iavf/iavf_main.c   | 37 ++++++++++---------
 .../net/ethernet/intel/iavf/iavf_virtchnl.c   |  2 +-
 3 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h
index 6766446a33f49..ce1e2fb22e092 100644
--- a/drivers/net/ethernet/intel/iavf/iavf.h
+++ b/drivers/net/ethernet/intel/iavf/iavf.h
@@ -309,6 +309,7 @@ struct iavf_adapter {
 	struct iavf_hw hw; /* defined in iavf_type.h */
 
 	enum iavf_state_t state;
+	enum iavf_state_t last_state;
 	unsigned long crit_section;
 
 	struct delayed_work watchdog_task;
@@ -378,6 +379,15 @@ struct iavf_device {
 extern char iavf_driver_name[];
 extern struct workqueue_struct *iavf_wq;
 
+static inline void iavf_change_state(struct iavf_adapter *adapter,
+				     enum iavf_state_t state)
+{
+	if (adapter->state != state) {
+		adapter->last_state = adapter->state;
+		adapter->state = state;
+	}
+}
+
 int iavf_up(struct iavf_adapter *adapter);
 void iavf_down(struct iavf_adapter *adapter);
 int iavf_process_config(struct iavf_adapter *adapter);
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 07170b77d42b6..bd1fb3774769b 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -963,7 +963,7 @@ static void iavf_configure(struct iavf_adapter *adapter)
  **/
 static void iavf_up_complete(struct iavf_adapter *adapter)
 {
-	adapter->state = __IAVF_RUNNING;
+	iavf_change_state(adapter, __IAVF_RUNNING);
 	clear_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
 
 	iavf_napi_enable_all(adapter);
@@ -1698,7 +1698,7 @@ static int iavf_startup(struct iavf_adapter *adapter)
 		iavf_shutdown_adminq(hw);
 		goto err;
 	}
-	adapter->state = __IAVF_INIT_VERSION_CHECK;
+	iavf_change_state(adapter, __IAVF_INIT_VERSION_CHECK);
 err:
 	return err;
 }
@@ -1722,7 +1722,7 @@ static int iavf_init_version_check(struct iavf_adapter *adapter)
 	if (!iavf_asq_done(hw)) {
 		dev_err(&pdev->dev, "Admin queue command never completed\n");
 		iavf_shutdown_adminq(hw);
-		adapter->state = __IAVF_STARTUP;
+		iavf_change_state(adapter, __IAVF_STARTUP);
 		goto err;
 	}
 
@@ -1745,8 +1745,7 @@ static int iavf_init_version_check(struct iavf_adapter *adapter)
 			err);
 		goto err;
 	}
-	adapter->state = __IAVF_INIT_GET_RESOURCES;
-
+	iavf_change_state(adapter, __IAVF_INIT_GET_RESOURCES);
 err:
 	return err;
 }
@@ -1862,7 +1861,7 @@ static int iavf_init_get_resources(struct iavf_adapter *adapter)
 	if (netdev->features & NETIF_F_GRO)
 		dev_info(&pdev->dev, "GRO is enabled\n");
 
-	adapter->state = __IAVF_DOWN;
+	iavf_change_state(adapter, __IAVF_DOWN);
 	set_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
 	rtnl_unlock();
 
@@ -1910,7 +1909,7 @@ static void iavf_watchdog_task(struct work_struct *work)
 		goto restart_watchdog;
 
 	if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
-		adapter->state = __IAVF_COMM_FAILED;
+		iavf_change_state(adapter, __IAVF_COMM_FAILED);
 
 	switch (adapter->state) {
 	case __IAVF_COMM_FAILED:
@@ -1921,7 +1920,7 @@ static void iavf_watchdog_task(struct work_struct *work)
 			/* A chance for redemption! */
 			dev_err(&adapter->pdev->dev,
 				"Hardware came out of reset. Attempting reinit.\n");
-			adapter->state = __IAVF_STARTUP;
+			iavf_change_state(adapter, __IAVF_STARTUP);
 			adapter->flags &= ~IAVF_FLAG_PF_COMMS_FAILED;
 			queue_delayed_work(iavf_wq, &adapter->init_task, 10);
 			clear_bit(__IAVF_IN_CRITICAL_TASK,
@@ -1971,9 +1970,10 @@ static void iavf_watchdog_task(struct work_struct *work)
 		goto restart_watchdog;
 	}
 
-		/* check for hw reset */
+	/* check for hw reset */
 	reg_val = rd32(hw, IAVF_VF_ARQLEN1) & IAVF_VF_ARQLEN1_ARQENABLE_MASK;
 	if (!reg_val) {
+		iavf_change_state(adapter, __IAVF_RESETTING);
 		adapter->flags |= IAVF_FLAG_RESET_PENDING;
 		adapter->aq_required = 0;
 		adapter->current_op = VIRTCHNL_OP_UNKNOWN;
@@ -2053,7 +2053,7 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
 	adapter->netdev->flags &= ~IFF_UP;
 	clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
 	adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
-	adapter->state = __IAVF_DOWN;
+	iavf_change_state(adapter, __IAVF_DOWN);
 	wake_up(&adapter->down_waitqueue);
 	dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
 }
@@ -2165,7 +2165,7 @@ continue_reset:
 	}
 	iavf_irq_disable(adapter);
 
-	adapter->state = __IAVF_RESETTING;
+	iavf_change_state(adapter, __IAVF_RESETTING);
 	adapter->flags &= ~IAVF_FLAG_RESET_PENDING;
 
 	/* free the Tx/Rx rings and descriptors, might be better to just
@@ -2265,11 +2265,14 @@ continue_reset:
 
 		iavf_configure(adapter);
 
+		/* iavf_up_complete() will switch device back
+		 * to __IAVF_RUNNING
+		 */
 		iavf_up_complete(adapter);
 
 		iavf_irq_enable(adapter, true);
 	} else {
-		adapter->state = __IAVF_DOWN;
+		iavf_change_state(adapter, __IAVF_DOWN);
 		wake_up(&adapter->down_waitqueue);
 	}
 	clear_bit(__IAVF_IN_CLIENT_TASK, &adapter->crit_section);
@@ -3277,7 +3280,7 @@ static int iavf_close(struct net_device *netdev)
 		adapter->flags |= IAVF_FLAG_CLIENT_NEEDS_CLOSE;
 
 	iavf_down(adapter);
-	adapter->state = __IAVF_DOWN_PENDING;
+	iavf_change_state(adapter, __IAVF_DOWN_PENDING);
 	iavf_free_traffic_irqs(adapter);
 
 	clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
@@ -3661,7 +3664,7 @@ init_failed:
 			"Failed to communicate with PF; waiting before retry\n");
 		adapter->flags |= IAVF_FLAG_PF_COMMS_FAILED;
 		iavf_shutdown_adminq(hw);
-		adapter->state = __IAVF_STARTUP;
+		iavf_change_state(adapter, __IAVF_STARTUP);
 		queue_delayed_work(iavf_wq, &adapter->init_task, HZ * 5);
 		goto out;
 	}
@@ -3687,7 +3690,7 @@ static void iavf_shutdown(struct pci_dev *pdev)
 	if (iavf_lock_timeout(adapter, __IAVF_IN_CRITICAL_TASK, 5000))
 		dev_warn(&adapter->pdev->dev, "failed to set __IAVF_IN_CRITICAL_TASK in %s\n", __FUNCTION__);
 	/* Prevent the watchdog from running. */
-	adapter->state = __IAVF_REMOVE;
+	iavf_change_state(adapter, __IAVF_REMOVE);
 	adapter->aq_required = 0;
 	clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
 
@@ -3760,7 +3763,7 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	hw->back = adapter;
 
 	adapter->msg_enable = BIT(DEFAULT_DEBUG_LEVEL_SHIFT) - 1;
-	adapter->state = __IAVF_STARTUP;
+	iavf_change_state(adapter, __IAVF_STARTUP);
 
 	/* Call save state here because it relies on the adapter struct. */
 	pci_save_state(pdev);
@@ -3928,7 +3931,7 @@ static void iavf_remove(struct pci_dev *pdev)
 		dev_warn(&adapter->pdev->dev, "failed to set __IAVF_IN_CRITICAL_TASK in %s\n", __FUNCTION__);
 
 	/* Shut down all the garbage mashers on the detention level */
-	adapter->state = __IAVF_REMOVE;
+	iavf_change_state(adapter, __IAVF_REMOVE);
 	adapter->aq_required = 0;
 	adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
 	iavf_free_all_tx_resources(adapter);
diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
index 8be3151f2c62b..ff479bf721443 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
@@ -1460,7 +1460,7 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter,
 		iavf_free_all_tx_resources(adapter);
 		iavf_free_all_rx_resources(adapter);
 		if (adapter->state == __IAVF_DOWN_PENDING) {
-			adapter->state = __IAVF_DOWN;
+			iavf_change_state(adapter, __IAVF_DOWN);
 			wake_up(&adapter->down_waitqueue);
 		}
 		break;
-- 
GitLab


From f5e496ef73f307bef4d4f14edb45512d4d245954 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 1 Mar 2022 18:00:20 +0800
Subject: [PATCH 4334/4878] nl80211: Handle nla_memdup failures in
 handle_nan_filter

[ Upstream commit 6ad27f522cb3b210476daf63ce6ddb6568c0508b ]

As there's potential for failure of the nla_memdup(),
check the return value.

Fixes: a442b761b24b ("cfg80211: add add_nan_func / del_nan_func")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220301100020.3801187-1-jiasheng@iscas.ac.cn
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/wireless/nl80211.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8fb0478888fb2..07bd7b00b56d4 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -12930,6 +12930,9 @@ static int handle_nan_filter(struct nlattr *attr_filter,
 	i = 0;
 	nla_for_each_nested(attr, attr_filter, rem) {
 		filter[i].filter = nla_memdup(attr, GFP_KERNEL);
+		if (!filter[i].filter)
+			goto err;
+
 		filter[i].len = nla_len(attr);
 		i++;
 	}
@@ -12942,6 +12945,15 @@ static int handle_nan_filter(struct nlattr *attr_filter,
 	}
 
 	return 0;
+
+err:
+	i = 0;
+	nla_for_each_nested(attr, attr_filter, rem) {
+		kfree(filter[i].filter);
+		i++;
+	}
+	kfree(filter);
+	return -ENOMEM;
 }
 
 static int nl80211_nan_add_func(struct sk_buff *skb,
-- 
GitLab


From 6828da5dea530f4743ecdef89f90cc117dfe3cee Mon Sep 17 00:00:00 2001
From: Qiang Yu <qiang.yu@amd.com>
Date: Tue, 1 Mar 2022 14:11:59 +0800
Subject: [PATCH 4335/4878] drm/amdgpu: fix suspend/resume hang regression
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f1ef17011c765495c876fa75435e59eecfdc1ee4 ]

Regression has been reported that suspend/resume may hang with
the previous vm ready check commit.

So bring back the evicted list check as a temp fix.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1922
Fixes: c1a66c3bc425 ("drm/amdgpu: check vm ready by amdgpu_vm->evicting flag")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Qiang Yu <qiang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 47cc038d7d506..635601d8b1310 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -724,7 +724,8 @@ bool amdgpu_vm_ready(struct amdgpu_vm *vm)
 	amdgpu_vm_eviction_lock(vm);
 	ret = !vm->evicting;
 	amdgpu_vm_eviction_unlock(vm);
-	return ret;
+
+	return ret && list_empty(&vm->evicted);
 }
 
 /**
-- 
GitLab


From 988f4f29cc44cb2c08d667901425dd7b093fe7cc Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Wed, 2 Mar 2022 21:39:39 +0200
Subject: [PATCH 4336/4878] net: dcb: disable softirqs in dcbnl_flush_dev()

[ Upstream commit 10b6bb62ae1a49ee818fc479cf57b8900176773e ]

Ido Schimmel points out that since commit 52cff74eef5d ("dcbnl : Disable
software interrupts before taking dcb_lock"), the DCB API can be called
by drivers from softirq context.

One such in-tree example is the chelsio cxgb4 driver:
dcb_rpl
-> cxgb4_dcb_handle_fw_update
   -> dcb_ieee_setapp

If the firmware for this driver happened to send an event which resulted
in a call to dcb_ieee_setapp() at the exact same time as another
DCB-enabled interface was unregistering on the same CPU, the softirq
would deadlock, because the interrupted process was already holding the
dcb_lock in dcbnl_flush_dev().

Fix this unlikely event by using spin_lock_bh() in dcbnl_flush_dev() as
in the rest of the dcbnl code.

Fixes: 91b0383fef06 ("net: dcb: flush lingering app table entries for unregistered devices")
Reported-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220302193939.1368823-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/dcb/dcbnl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 799ff0efcc55b..2535d3dfb92c8 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -2067,7 +2067,7 @@ static void dcbnl_flush_dev(struct net_device *dev)
 {
 	struct dcb_app_type *itr, *tmp;
 
-	spin_lock(&dcb_lock);
+	spin_lock_bh(&dcb_lock);
 
 	list_for_each_entry_safe(itr, tmp, &dcb_app_list, list) {
 		if (itr->ifindex == dev->ifindex) {
@@ -2076,7 +2076,7 @@ static void dcbnl_flush_dev(struct net_device *dev)
 		}
 	}
 
-	spin_unlock(&dcb_lock);
+	spin_unlock_bh(&dcb_lock);
 }
 
 static int dcbnl_netdevice_event(struct notifier_block *nb,
-- 
GitLab


From 1397bbcd817f897e8a2ee8b9a026c327f9f5470e Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 28 Feb 2022 23:39:38 -0800
Subject: [PATCH 4337/4878] Input: elan_i2c - move regulator_[en|dis]able() out
 of elan_[en|dis]able_power()

commit 81a36d8ce554b82b0a08e2b95d0bd44fcbff339b upstream.

elan_disable_power() is called conditionally on suspend, where as
elan_enable_power() is always called on resume. This leads to
an imbalance in the regulator's enable count.

Move the regulator_[en|dis]able() calls out of elan_[en|dis]able_power()
in preparation of fixing this.

No functional changes intended.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220131135436.29638-1-hdegoede@redhat.com
[dtor: consolidate elan_[en|dis]able() into elan_set_power()]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/mouse/elan_i2c_core.c | 62 ++++++++++-------------------
 1 file changed, 22 insertions(+), 40 deletions(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 11a9ee32c98cc..4ee077d02d40d 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -153,55 +153,21 @@ static int elan_get_fwinfo(u16 ic_type, u8 iap_version, u16 *validpage_count,
 	return 0;
 }
 
-static int elan_enable_power(struct elan_tp_data *data)
+static int elan_set_power(struct elan_tp_data *data, bool on)
 {
 	int repeat = ETP_RETRY_COUNT;
 	int error;
 
-	error = regulator_enable(data->vcc);
-	if (error) {
-		dev_err(&data->client->dev,
-			"failed to enable regulator: %d\n", error);
-		return error;
-	}
-
 	do {
-		error = data->ops->power_control(data->client, true);
+		error = data->ops->power_control(data->client, on);
 		if (error >= 0)
 			return 0;
 
 		msleep(30);
 	} while (--repeat > 0);
 
-	dev_err(&data->client->dev, "failed to enable power: %d\n", error);
-	return error;
-}
-
-static int elan_disable_power(struct elan_tp_data *data)
-{
-	int repeat = ETP_RETRY_COUNT;
-	int error;
-
-	do {
-		error = data->ops->power_control(data->client, false);
-		if (!error) {
-			error = regulator_disable(data->vcc);
-			if (error) {
-				dev_err(&data->client->dev,
-					"failed to disable regulator: %d\n",
-					error);
-				/* Attempt to power the chip back up */
-				data->ops->power_control(data->client, true);
-				break;
-			}
-
-			return 0;
-		}
-
-		msleep(30);
-	} while (--repeat > 0);
-
-	dev_err(&data->client->dev, "failed to disable power: %d\n", error);
+	dev_err(&data->client->dev, "failed to set power %s: %d\n",
+		on ? "on" : "off", error);
 	return error;
 }
 
@@ -1361,9 +1327,19 @@ static int __maybe_unused elan_suspend(struct device *dev)
 		/* Enable wake from IRQ */
 		data->irq_wake = (enable_irq_wake(client->irq) == 0);
 	} else {
-		ret = elan_disable_power(data);
+		ret = elan_set_power(data, false);
+		if (ret)
+			goto err;
+
+		ret = regulator_disable(data->vcc);
+		if (ret) {
+			dev_err(dev, "error %d disabling regulator\n", ret);
+			/* Attempt to power the chip back up */
+			elan_set_power(data, true);
+		}
 	}
 
+err:
 	mutex_unlock(&data->sysfs_mutex);
 	return ret;
 }
@@ -1379,7 +1355,13 @@ static int __maybe_unused elan_resume(struct device *dev)
 		data->irq_wake = false;
 	}
 
-	error = elan_enable_power(data);
+	error = regulator_enable(data->vcc);
+	if (error) {
+		dev_err(dev, "error %d enabling regulator\n", error);
+		goto err;
+	}
+
+	error = elan_set_power(data, true);
 	if (error) {
 		dev_err(dev, "power up when resuming failed: %d\n", error);
 		goto err;
-- 
GitLab


From a621ae6394ce05177fa9941da1a9b465c9c47d31 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 28 Feb 2022 23:39:50 -0800
Subject: [PATCH 4338/4878] Input: elan_i2c - fix regulator enable count
 imbalance after suspend/resume

commit 04b7762e37c95d9b965d16bb0e18dbd1fa2e2861 upstream.

Before these changes elan_suspend() would only disable the regulator
when device_may_wakeup() returns false; whereas elan_resume() would
unconditionally enable it, leading to an enable count imbalance when
device_may_wakeup() returns true.

This triggers the "WARN_ON(regulator->enable_count)" in regulator_put()
when the elan_i2c driver gets unbound, this happens e.g. with the
hot-plugable dock with Elan I2C touchpad for the Asus TF103C 2-in-1.

Fix this by making the regulator_enable() call also be conditional
on device_may_wakeup() returning false.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220131135436.29638-2-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/mouse/elan_i2c_core.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 4ee077d02d40d..6f59c8b245f24 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1350,17 +1350,17 @@ static int __maybe_unused elan_resume(struct device *dev)
 	struct elan_tp_data *data = i2c_get_clientdata(client);
 	int error;
 
-	if (device_may_wakeup(dev) && data->irq_wake) {
+	if (!device_may_wakeup(dev)) {
+		error = regulator_enable(data->vcc);
+		if (error) {
+			dev_err(dev, "error %d enabling regulator\n", error);
+			goto err;
+		}
+	} else if (data->irq_wake) {
 		disable_irq_wake(client->irq);
 		data->irq_wake = false;
 	}
 
-	error = regulator_enable(data->vcc);
-	if (error) {
-		dev_err(dev, "error %d enabling regulator\n", error);
-		goto err;
-	}
-
 	error = elan_set_power(data, true);
 	if (error) {
 		dev_err(dev, "power up when resuming failed: %d\n", error);
-- 
GitLab


From 3b8f2a7aed8005c115684c9126f816a3d4cfe2ea Mon Sep 17 00:00:00 2001
From: David Gow <davidgow@google.com>
Date: Sun, 27 Feb 2022 21:00:10 -0800
Subject: [PATCH 4339/4878] Input: samsung-keypad - properly state IOMEM
 dependency

commit ba115adf61b36b8c167126425a62b0efc23f72c0 upstream.

Make the samsung-keypad driver explicitly depend on CONFIG_HAS_IOMEM, as it
calls devm_ioremap(). This prevents compile errors in some configs (e.g,
allyesconfig/randconfig under UML):

/usr/bin/ld: drivers/input/keyboard/samsung-keypad.o: in function `samsung_keypad_probe':
samsung-keypad.c:(.text+0xc60): undefined reference to `devm_ioremap'

Signed-off-by: David Gow <davidgow@google.com>
Acked-by: anton ivanov <anton.ivanov@cambridgegreys.com>
Link: https://lore.kernel.org/r/20220225041727.1902850-1-davidgow@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/keyboard/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 9f60f1559e499..3f7a5ff17a9a3 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -556,7 +556,7 @@ config KEYBOARD_PMIC8XXX
 
 config KEYBOARD_SAMSUNG
 	tristate "Samsung keypad support"
-	depends on HAVE_CLK
+	depends on HAS_IOMEM && HAVE_CLK
 	select INPUT_MATRIXKMAP
 	help
 	  Say Y here if you want to use the keypad on your Samsung mobile
-- 
GitLab


From f276ea5035aafc508c4d34b121e2ddf22f131816 Mon Sep 17 00:00:00 2001
From: William Mahon <wmahon@chromium.org>
Date: Thu, 3 Mar 2022 18:23:42 -0800
Subject: [PATCH 4340/4878] HID: add mapping for KEY_DICTATE

commit bfa26ba343c727e055223be04e08f2ebdd43c293 upstream.

Numerous keyboards are adding dictate keys which allows for text
messages to be dictated by a microphone.

This patch adds a new key definition KEY_DICTATE and maps 0x0c/0x0d8
usage code to this new keycode. Additionally hid-debug is adjusted to
recognize this new usage code as well.

Signed-off-by: William Mahon <wmahon@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220303021501.1.I5dbf50eb1a7a6734ee727bda4a8573358c6d3ec0@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-debug.c                | 1 +
 drivers/hid/hid-input.c                | 1 +
 include/uapi/linux/input-event-codes.h | 1 +
 3 files changed, 3 insertions(+)

diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 982737827b871..2d941aa133cec 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -930,6 +930,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_SCREENSAVER] = "ScreenSaver",
 	[KEY_VOICECOMMAND] = "VoiceCommand",
 	[KEY_EMOJI_PICKER] = "EmojiPicker",
+	[KEY_DICTATE] = "Dictate",
 	[KEY_BRIGHTNESS_MIN] = "BrightnessMin",
 	[KEY_BRIGHTNESS_MAX] = "BrightnessMax",
 	[KEY_BRIGHTNESS_AUTO] = "BrightnessAuto",
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index eb53855898c8d..8fa7b4e06f71f 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -956,6 +956,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
 		case 0x0cf: map_key_clear(KEY_VOICECOMMAND);	break;
 
+		case 0x0d8: map_key_clear(KEY_DICTATE);		break;
 		case 0x0d9: map_key_clear(KEY_EMOJI_PICKER);	break;
 
 		case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 225ec87d4f228..4db5d41848e4c 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -612,6 +612,7 @@
 #define KEY_ASSISTANT		0x247	/* AL Context-aware desktop assistant */
 #define KEY_KBD_LAYOUT_NEXT	0x248	/* AC Next Keyboard Layout Select */
 #define KEY_EMOJI_PICKER	0x249	/* Show/hide emoji picker (HUTRR101) */
+#define KEY_DICTATE		0x24a	/* Start or Stop Voice Dictation Session (HUTRR99) */
 
 #define KEY_BRIGHTNESS_MIN		0x250	/* Set Brightness to Minimum */
 #define KEY_BRIGHTNESS_MAX		0x251	/* Set Brightness to Maximum */
-- 
GitLab


From 0e188fde82d7c80a6301954fbfb398ddaa8647c3 Mon Sep 17 00:00:00 2001
From: William Mahon <wmahon@chromium.org>
Date: Thu, 3 Mar 2022 18:26:22 -0800
Subject: [PATCH 4341/4878] HID: add mapping for KEY_ALL_APPLICATIONS

commit 327b89f0acc4c20a06ed59e4d9af7f6d804dc2e2 upstream.

This patch adds a new key definition for KEY_ALL_APPLICATIONS
and aliases KEY_DASHBOARD to it.

It also maps the 0x0c/0x2a2 usage code to KEY_ALL_APPLICATIONS.

Signed-off-by: William Mahon <wmahon@chromium.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20220303035618.1.I3a7746ad05d270161a18334ae06e3b6db1a1d339@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-debug.c                | 4 +++-
 drivers/hid/hid-input.c                | 2 ++
 include/uapi/linux/input-event-codes.h | 3 ++-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 2d941aa133cec..f4e2e69377589 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -823,7 +823,9 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_F22] = "F22",			[KEY_F23] = "F23",
 	[KEY_F24] = "F24",			[KEY_PLAYCD] = "PlayCD",
 	[KEY_PAUSECD] = "PauseCD",		[KEY_PROG3] = "Prog3",
-	[KEY_PROG4] = "Prog4",			[KEY_SUSPEND] = "Suspend",
+	[KEY_PROG4] = "Prog4",
+	[KEY_ALL_APPLICATIONS] = "AllApplications",
+	[KEY_SUSPEND] = "Suspend",
 	[KEY_CLOSE] = "Close",			[KEY_PLAY] = "Play",
 	[KEY_FASTFORWARD] = "FastForward",	[KEY_BASSBOOST] = "BassBoost",
 	[KEY_PRINT] = "Print",			[KEY_HP] = "HP",
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 8fa7b4e06f71f..a17d1dda95703 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1048,6 +1048,8 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 
 		case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT);	break;
 
+		case 0x2a2: map_key_clear(KEY_ALL_APPLICATIONS);	break;
+
 		case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV);		break;
 		case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT);		break;
 		case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP);		break;
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 4db5d41848e4c..7989d9483ea75 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -278,7 +278,8 @@
 #define KEY_PAUSECD		201
 #define KEY_PROG3		202
 #define KEY_PROG4		203
-#define KEY_DASHBOARD		204	/* AL Dashboard */
+#define KEY_ALL_APPLICATIONS	204	/* AC Desktop Show All Applications */
+#define KEY_DASHBOARD		KEY_ALL_APPLICATIONS
 #define KEY_SUSPEND		205
 #define KEY_CLOSE		206	/* AC Close */
 #define KEY_PLAY		207
-- 
GitLab


From 78059b1cfcd954e9c3ed6a5c3a8cd03f3b966c43 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>
Date: Tue, 1 Mar 2022 22:29:04 -0500
Subject: [PATCH 4342/4878] tracing/histogram: Fix sorting on old "cpu" value

commit 1d1898f65616c4601208963c3376c1d828cbf2c7 upstream.

When trying to add a histogram against an event with the "cpu" field, it
was impossible due to "cpu" being a keyword to key off of the running CPU.
So to fix this, it was changed to "common_cpu" to match the other generic
fields (like "common_pid"). But since some scripts used "cpu" for keying
off of the CPU (for events that did not have "cpu" as a field, which is
most of them), a backward compatibility trick was added such that if "cpu"
was used as a key, and the event did not have "cpu" as a field name, then
it would fallback and switch over to "common_cpu".

This fix has a couple of subtle bugs. One was that when switching over to
"common_cpu", it did not change the field name, it just set a flag. But
the code still found a "cpu" field. The "cpu" field is used for filtering
and is returned when the event does not have a "cpu" field.

This was found by:

  # cd /sys/kernel/tracing
  # echo hist:key=cpu,pid:sort=cpu > events/sched/sched_wakeup/trigger
  # cat events/sched/sched_wakeup/hist

Which showed the histogram unsorted:

{ cpu:         19, pid:       1175 } hitcount:          1
{ cpu:          6, pid:        239 } hitcount:          2
{ cpu:         23, pid:       1186 } hitcount:         14
{ cpu:         12, pid:        249 } hitcount:          2
{ cpu:          3, pid:        994 } hitcount:          5

Instead of hard coding the "cpu" checks, take advantage of the fact that
trace_event_field_field() returns a special field for "cpu" and "CPU" if
the event does not have "cpu" as a field. This special field has the
"filter_type" of "FILTER_CPU". Check that to test if the returned field is
of the CPU type instead of doing the string compare.

Also, fix the sorting bug by testing for the hist_field flag of
HIST_FIELD_FL_CPU when setting up the sort routine. Otherwise it will use
the special CPU field to know what compare routine to use, and since that
special field does not have a size, it returns tracing_map_cmp_none.

Cc: stable@vger.kernel.org
Fixes: 1e3bac71c505 ("tracing/histogram: Rename "cpu" to "common_cpu"")
Reported-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events_hist.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 41a9bd52e1fdc..eb7200699cf66 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1985,9 +1985,9 @@ parse_field(struct hist_trigger_data *hist_data, struct trace_event_file *file,
 			/*
 			 * For backward compatibility, if field_name
 			 * was "cpu", then we treat this the same as
-			 * common_cpu.
+			 * common_cpu. This also works for "CPU".
 			 */
-			if (strcmp(field_name, "cpu") == 0) {
+			if (field && field->filter_type == FILTER_CPU) {
 				*flags |= HIST_FIELD_FL_CPU;
 			} else {
 				hist_err(tr, HIST_ERR_FIELD_NOT_FOUND,
@@ -4365,7 +4365,7 @@ static int create_tracing_map_fields(struct hist_trigger_data *hist_data)
 
 			if (hist_field->flags & HIST_FIELD_FL_STACKTRACE)
 				cmp_fn = tracing_map_cmp_none;
-			else if (!field)
+			else if (!field || hist_field->flags & HIST_FIELD_FL_CPU)
 				cmp_fn = tracing_map_cmp_num(hist_field->size,
 							     hist_field->is_signed);
 			else if (is_string_field(field))
-- 
GitLab


From 827172ffa99965fd1c43f868da64dc9e9232407f Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 2 Mar 2022 19:17:44 -0800
Subject: [PATCH 4343/4878] tracing: Fix return value of __setup handlers

commit 1d02b444b8d1345ea4708db3bab4db89a7784b55 upstream.

__setup() handlers should generally return 1 to indicate that the
boot options have been handled.

Using invalid option values causes the entire kernel boot option
string to be reported as Unknown and added to init's environment
strings, polluting it.

  Unknown kernel command line parameters "BOOT_IMAGE=/boot/bzImage-517rc6
    kprobe_event=p,syscall_any,$arg1 trace_options=quiet
    trace_clock=jiffies", will be passed to user space.

 Run /sbin/init as init process
   with arguments:
     /sbin/init
   with environment:
     HOME=/
     TERM=linux
     BOOT_IMAGE=/boot/bzImage-517rc6
     kprobe_event=p,syscall_any,$arg1
     trace_options=quiet
     trace_clock=jiffies

Return 1 from the __setup() handlers so that init's environment is not
polluted with kernel boot options.

Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Link: https://lkml.kernel.org/r/20220303031744.32356-1-rdunlap@infradead.org

Cc: stable@vger.kernel.org
Fixes: 7bcfaf54f591 ("tracing: Add trace_options kernel command line parameter")
Fixes: e1e232ca6b8f ("tracing: Add trace_clock=<clock> kernel parameter")
Fixes: 970988e19eb0 ("tracing/kprobe: Add kprobe_event= boot parameter")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace.c        | 4 ++--
 kernel/trace/trace_kprobe.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index f9fad789321b0..71ed0616d83bd 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -233,7 +233,7 @@ static char trace_boot_options_buf[MAX_TRACER_SIZE] __initdata;
 static int __init set_trace_boot_options(char *str)
 {
 	strlcpy(trace_boot_options_buf, str, MAX_TRACER_SIZE);
-	return 0;
+	return 1;
 }
 __setup("trace_options=", set_trace_boot_options);
 
@@ -244,7 +244,7 @@ static int __init set_trace_boot_clock(char *str)
 {
 	strlcpy(trace_boot_clock_buf, str, MAX_TRACER_SIZE);
 	trace_boot_clock = trace_boot_clock_buf;
-	return 0;
+	return 1;
 }
 __setup("trace_clock=", set_trace_boot_clock);
 
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index d8a9fc7941266..41dd17390c732 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -31,7 +31,7 @@ static int __init set_kprobe_boot_events(char *str)
 	strlcpy(kprobe_boot_events_buf, str, COMMAND_LINE_SIZE);
 	disable_tracing_selftest("running kprobe events");
 
-	return 0;
+	return 1;
 }
 __setup("kprobe_event=", set_kprobe_boot_events);
 
-- 
GitLab


From 6e0319e770839ab9aaee10e0e2b34edb92491831 Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Thu, 17 Feb 2022 12:12:02 +0000
Subject: [PATCH 4344/4878] btrfs: fix lost prealloc extents beyond eof after
 full fsync

commit d99478874355d3a7b9d86dfb5d7590d5b1754b1f upstream.

When doing a full fsync, if we have prealloc extents beyond (or at) eof,
and the leaves that contain them were not modified in the current
transaction, we end up not logging them. This results in losing those
extents when we replay the log after a power failure, since the inode is
truncated to the current value of the logged i_size.

Just like for the fast fsync path, we need to always log all prealloc
extents starting at or beyond i_size. The fast fsync case was fixed in
commit 471d557afed155 ("Btrfs: fix loss of prealloc extents past i_size
after fsync log replay") but it missed the full fsync path. The problem
exists since the very early days, when the log tree was added by
commit e02119d5a7b439 ("Btrfs: Add a write ahead tree log to optimize
synchronous operations").

Example reproducer:

  $ mkfs.btrfs -f /dev/sdc
  $ mount /dev/sdc /mnt

  # Create our test file with many file extent items, so that they span
  # several leaves of metadata, even if the node/page size is 64K. Use
  # direct IO and not fsync/O_SYNC because it's both faster and it avoids
  # clearing the full sync flag from the inode - we want the fsync below
  # to trigger the slow full sync code path.
  $ xfs_io -f -d -c "pwrite -b 4K 0 16M" /mnt/foo

  # Now add two preallocated extents to our file without extending the
  # file's size. One right at i_size, and another further beyond, leaving
  # a gap between the two prealloc extents.
  $ xfs_io -c "falloc -k 16M 1M" /mnt/foo
  $ xfs_io -c "falloc -k 20M 1M" /mnt/foo

  # Make sure everything is durably persisted and the transaction is
  # committed. This makes all created extents to have a generation lower
  # than the generation of the transaction used by the next write and
  # fsync.
  sync

  # Now overwrite only the first extent, which will result in modifying
  # only the first leaf of metadata for our inode. Then fsync it. This
  # fsync will use the slow code path (inode full sync bit is set) because
  # it's the first fsync since the inode was created/loaded.
  $ xfs_io -c "pwrite 0 4K" -c "fsync" /mnt/foo

  # Extent list before power failure.
  $ xfs_io -c "fiemap -v" /mnt/foo
  /mnt/foo:
   EXT: FILE-OFFSET      BLOCK-RANGE      TOTAL FLAGS
     0: [0..7]:          2178048..2178055     8   0x0
     1: [8..16383]:      26632..43007     16376   0x0
     2: [16384..32767]:  2156544..2172927 16384   0x0
     3: [32768..34815]:  2172928..2174975  2048 0x800
     4: [34816..40959]:  hole              6144
     5: [40960..43007]:  2174976..2177023  2048 0x801

  <power fail>

  # Mount fs again, trigger log replay.
  $ mount /dev/sdc /mnt

  # Extent list after power failure and log replay.
  $ xfs_io -c "fiemap -v" /mnt/foo
  /mnt/foo:
   EXT: FILE-OFFSET      BLOCK-RANGE      TOTAL FLAGS
     0: [0..7]:          2178048..2178055     8   0x0
     1: [8..16383]:      26632..43007     16376   0x0
     2: [16384..32767]:  2156544..2172927 16384   0x1

  # The prealloc extents at file offsets 16M and 20M are missing.

So fix this by calling btrfs_log_prealloc_extents() when we are doing a
full fsync, so that we always log all prealloc extents beyond eof.

A test case for fstests will follow soon.

CC: stable@vger.kernel.org # 4.19+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 43 +++++++++++++++++++++++++++++++------------
 1 file changed, 31 insertions(+), 12 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 09ef6419e890a..84161e30b114b 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -4297,7 +4297,7 @@ static int log_one_extent(struct btrfs_trans_handle *trans,
 
 /*
  * Log all prealloc extents beyond the inode's i_size to make sure we do not
- * lose them after doing a fast fsync and replaying the log. We scan the
+ * lose them after doing a full/fast fsync and replaying the log. We scan the
  * subvolume's root instead of iterating the inode's extent map tree because
  * otherwise we can log incorrect extent items based on extent map conversion.
  * That can happen due to the fact that extent maps are merged when they
@@ -5084,6 +5084,7 @@ static int copy_inode_items_to_log(struct btrfs_trans_handle *trans,
 				   struct btrfs_log_ctx *ctx,
 				   bool *need_log_inode_item)
 {
+	const u64 i_size = i_size_read(&inode->vfs_inode);
 	struct btrfs_root *root = inode->root;
 	int ins_start_slot = 0;
 	int ins_nr = 0;
@@ -5104,13 +5105,21 @@ again:
 		if (min_key->type > max_key->type)
 			break;
 
-		if (min_key->type == BTRFS_INODE_ITEM_KEY)
+		if (min_key->type == BTRFS_INODE_ITEM_KEY) {
 			*need_log_inode_item = false;
-
-		if ((min_key->type == BTRFS_INODE_REF_KEY ||
-		     min_key->type == BTRFS_INODE_EXTREF_KEY) &&
-		    inode->generation == trans->transid &&
-		    !recursive_logging) {
+		} else if (min_key->type == BTRFS_EXTENT_DATA_KEY &&
+			   min_key->offset >= i_size) {
+			/*
+			 * Extents at and beyond eof are logged with
+			 * btrfs_log_prealloc_extents().
+			 * Only regular files have BTRFS_EXTENT_DATA_KEY keys,
+			 * and no keys greater than that, so bail out.
+			 */
+			break;
+		} else if ((min_key->type == BTRFS_INODE_REF_KEY ||
+			    min_key->type == BTRFS_INODE_EXTREF_KEY) &&
+			   inode->generation == trans->transid &&
+			   !recursive_logging) {
 			u64 other_ino = 0;
 			u64 other_parent = 0;
 
@@ -5141,10 +5150,8 @@ again:
 				btrfs_release_path(path);
 				goto next_key;
 			}
-		}
-
-		/* Skip xattrs, we log them later with btrfs_log_all_xattrs() */
-		if (min_key->type == BTRFS_XATTR_ITEM_KEY) {
+		} else if (min_key->type == BTRFS_XATTR_ITEM_KEY) {
+			/* Skip xattrs, logged later with btrfs_log_all_xattrs() */
 			if (ins_nr == 0)
 				goto next_slot;
 			ret = copy_items(trans, inode, dst_path, path,
@@ -5197,9 +5204,21 @@ next_key:
 			break;
 		}
 	}
-	if (ins_nr)
+	if (ins_nr) {
 		ret = copy_items(trans, inode, dst_path, path, ins_start_slot,
 				 ins_nr, inode_only, logged_isize);
+		if (ret)
+			return ret;
+	}
+
+	if (inode_only == LOG_INODE_ALL && S_ISREG(inode->vfs_inode.i_mode)) {
+		/*
+		 * Release the path because otherwise we might attempt to double
+		 * lock the same leaf with btrfs_log_prealloc_extents() below.
+		 */
+		btrfs_release_path(path);
+		ret = btrfs_log_prealloc_extents(trans, inode, dst_path);
+	}
 
 	return ret;
 }
-- 
GitLab


From 41712c5fa51887252b349700a286ae151d55e460 Mon Sep 17 00:00:00 2001
From: Sidong Yang <realwakka@gmail.com>
Date: Mon, 28 Feb 2022 01:43:40 +0000
Subject: [PATCH 4345/4878] btrfs: qgroup: fix deadlock between rescan worker
 and remove qgroup

commit d4aef1e122d8bbdc15ce3bd0bc813d6b44a7d63a upstream.

The commit e804861bd4e6 ("btrfs: fix deadlock between quota disable and
qgroup rescan worker") by Kawasaki resolves deadlock between quota
disable and qgroup rescan worker. But also there is a deadlock case like
it. It's about enabling or disabling quota and creating or removing
qgroup. It can be reproduced in simple script below.

for i in {1..100}
do
    btrfs quota enable /mnt &
    btrfs qgroup create 1/0 /mnt &
    btrfs qgroup destroy 1/0 /mnt &
    btrfs quota disable /mnt &
done

Here's why the deadlock happens:

1) The quota rescan task is running.

2) Task A calls btrfs_quota_disable(), locks the qgroup_ioctl_lock
   mutex, and then calls btrfs_qgroup_wait_for_completion(), to wait for
   the quota rescan task to complete.

3) Task B calls btrfs_remove_qgroup() and it blocks when trying to lock
   the qgroup_ioctl_lock mutex, because it's being held by task A. At that
   point task B is holding a transaction handle for the current transaction.

4) The quota rescan task calls btrfs_commit_transaction(). This results
   in it waiting for all other tasks to release their handles on the
   transaction, but task B is blocked on the qgroup_ioctl_lock mutex
   while holding a handle on the transaction, and that mutex is being held
   by task A, which is waiting for the quota rescan task to complete,
   resulting in a deadlock between these 3 tasks.

To resolve this issue, the thread disabling quota should unlock
qgroup_ioctl_lock before waiting rescan completion. Move
btrfs_qgroup_wait_for_completion() after unlock of qgroup_ioctl_lock.

Fixes: e804861bd4e6 ("btrfs: fix deadlock between quota disable and qgroup rescan worker")
CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Sidong Yang <realwakka@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/qgroup.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index e39a12037b403..a02e38fb696c1 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1197,6 +1197,14 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
 	if (!fs_info->quota_root)
 		goto out;
 
+	/*
+	 * Unlock the qgroup_ioctl_lock mutex before waiting for the rescan worker to
+	 * complete. Otherwise we can deadlock because btrfs_remove_qgroup() needs
+	 * to lock that mutex while holding a transaction handle and the rescan
+	 * worker needs to commit a transaction.
+	 */
+	mutex_unlock(&fs_info->qgroup_ioctl_lock);
+
 	/*
 	 * Request qgroup rescan worker to complete and wait for it. This wait
 	 * must be done before transaction start for quota disable since it may
@@ -1204,7 +1212,6 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
 	 */
 	clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
 	btrfs_qgroup_wait_for_completion(fs_info, false);
-	mutex_unlock(&fs_info->qgroup_ioctl_lock);
 
 	/*
 	 * 1 For the root item
-- 
GitLab


From 292e1c88b8a5616ada179f1f4f14c799571217af Mon Sep 17 00:00:00 2001
From: Filipe Manana <fdmanana@suse.com>
Date: Mon, 28 Feb 2022 16:29:28 +0000
Subject: [PATCH 4346/4878] btrfs: add missing run of delayed items after
 unlink during log replay

commit 4751dc99627e4d1465c5bfa8cb7ab31ed418eff5 upstream.

During log replay, whenever we need to check if a name (dentry) exists in
a directory we do searches on the subvolume tree for inode references or
or directory entries (BTRFS_DIR_INDEX_KEY keys, and BTRFS_DIR_ITEM_KEY
keys as well, before kernel 5.17). However when during log replay we
unlink a name, through btrfs_unlink_inode(), we may not delete inode
references and dir index keys from a subvolume tree and instead just add
the deletions to the delayed inode's delayed items, which will only be
run when we commit the transaction used for log replay. This means that
after an unlink operation during log replay, if we attempt to search for
the same name during log replay, we will not see that the name was already
deleted, since the deletion is recorded only on the delayed items.

We run delayed items after every unlink operation during log replay,
except at unlink_old_inode_refs() and at add_inode_ref(). This was due
to an overlook, as delayed items should be run after evert unlink, for
the reasons stated above.

So fix those two cases.

Fixes: 0d836392cadd5 ("Btrfs: fix mount failure after fsync due to hard link recreation")
Fixes: 1f250e929a9c9 ("Btrfs: fix log replay failure after unlink and link combination")
CC: stable@vger.kernel.org # 4.19+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/tree-log.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 84161e30b114b..62784b99a8074 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1286,6 +1286,15 @@ again:
 						 inode, name, namelen);
 			kfree(name);
 			iput(dir);
+			/*
+			 * Whenever we need to check if a name exists or not, we
+			 * check the subvolume tree. So after an unlink we must
+			 * run delayed items, so that future checks for a name
+			 * during log replay see that the name does not exists
+			 * anymore.
+			 */
+			if (!ret)
+				ret = btrfs_run_delayed_items(trans);
 			if (ret)
 				goto out;
 			goto again;
@@ -1537,6 +1546,15 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 				 */
 				if (!ret && inode->i_nlink == 0)
 					inc_nlink(inode);
+				/*
+				 * Whenever we need to check if a name exists or
+				 * not, we check the subvolume tree. So after an
+				 * unlink we must run delayed items, so that future
+				 * checks for a name during log replay see that the
+				 * name does not exists anymore.
+				 */
+				if (!ret)
+					ret = btrfs_run_delayed_items(trans);
 			}
 			if (ret < 0)
 				goto out;
-- 
GitLab


From dcd03efd7e8dee7a2f69bede085627fb82a9a94d Mon Sep 17 00:00:00 2001
From: Jiri Bohac <jbohac@suse.cz>
Date: Wed, 26 Jan 2022 16:00:18 +0100
Subject: [PATCH 4347/4878] Revert "xfrm: xfrm_state_mtu should return at least
 1280 for ipv6"

commit a6d95c5a628a09be129f25d5663a7e9db8261f51 upstream.

This reverts commit b515d2637276a3810d6595e10ab02c13bfd0b63a.

Commit b515d2637276a3810d6595e10ab02c13bfd0b63a ("xfrm: xfrm_state_mtu
should return at least 1280 for ipv6") in v5.14 breaks the TCP MSS
calculation in ipsec transport mode, resulting complete stalls of TCP
connections. This happens when the (P)MTU is 1280 or slighly larger.

The desired formula for the MSS is:
MSS = (MTU - ESP_overhead) - IP header - TCP header

However, the above commit clamps the (MTU - ESP_overhead) to a
minimum of 1280, turning the formula into
MSS = max(MTU - ESP overhead, 1280) -  IP header - TCP header

With the (P)MTU near 1280, the calculated MSS is too large and the
resulting TCP packets never make it to the destination because they
are over the actual PMTU.

The above commit also causes suboptimal double fragmentation in
xfrm tunnel mode, as described in
https://lore.kernel.org/netdev/20210429202529.codhwpc7w6kbudug@dwarf.suse.cz/

The original problem the above commit was trying to fix is now fixed
by commit 6596a0229541270fb8d38d989f91b78838e5e9da ("xfrm: fix MTU
regression").

Signed-off-by: Jiri Bohac <jbohac@suse.cz>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/xfrm.h    |  1 -
 net/ipv4/esp4.c       |  2 +-
 net/ipv6/esp6.c       |  2 +-
 net/xfrm/xfrm_state.c | 14 ++------------
 4 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 337d29875e518..4a2843441caf1 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1551,7 +1551,6 @@ void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
 void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
 u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
 int xfrm_init_replay(struct xfrm_state *x);
-u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu);
 u32 xfrm_state_mtu(struct xfrm_state *x, int mtu);
 int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload);
 int xfrm_init_state(struct xfrm_state *x);
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index ed9857b2875dc..4b834bbf95e07 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -673,7 +673,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 		struct xfrm_dst *dst = (struct xfrm_dst *)skb_dst(skb);
 		u32 padto;
 
-		padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached));
+		padto = min(x->tfcpad, xfrm_state_mtu(x, dst->child_mtu_cached));
 		if (skb->len < padto)
 			esp.tfclen = padto - skb->len;
 	}
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 7f2ffc7b1f75a..fc8acb15dcfbb 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -708,7 +708,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 		struct xfrm_dst *dst = (struct xfrm_dst *)skb_dst(skb);
 		u32 padto;
 
-		padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached));
+		padto = min(x->tfcpad, xfrm_state_mtu(x, dst->child_mtu_cached));
 		if (skb->len < padto)
 			esp.tfclen = padto - skb->len;
 	}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 65e2805fa113a..f5b846a2edcd7 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2537,7 +2537,7 @@ void xfrm_state_delete_tunnel(struct xfrm_state *x)
 }
 EXPORT_SYMBOL(xfrm_state_delete_tunnel);
 
-u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu)
+u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
 {
 	const struct xfrm_type *type = READ_ONCE(x->type);
 	struct crypto_aead *aead;
@@ -2568,17 +2568,7 @@ u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu)
 	return ((mtu - x->props.header_len - crypto_aead_authsize(aead) -
 		 net_adj) & ~(blksize - 1)) + net_adj - 2;
 }
-EXPORT_SYMBOL_GPL(__xfrm_state_mtu);
-
-u32 xfrm_state_mtu(struct xfrm_state *x, int mtu)
-{
-	mtu = __xfrm_state_mtu(x, mtu);
-
-	if (x->props.family == AF_INET6 && mtu < IPV6_MIN_MTU)
-		return IPV6_MIN_MTU;
-
-	return mtu;
-}
+EXPORT_SYMBOL_GPL(xfrm_state_mtu);
 
 int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload)
 {
-- 
GitLab


From dbbe09d953773e89d7e9bfb49acd936ddf7d84db Mon Sep 17 00:00:00 2001
From: Huang Pei <huangpei@loongson.cn>
Date: Tue, 23 Nov 2021 19:07:48 +0800
Subject: [PATCH 4348/4878] hamradio: fix macro redefine warning

commit 16517829f2e02f096fb5ea9083d160381127faf3 upstream.

MIPS/IA64 define END as assembly function ending, which conflict
with END definition in mkiss.c, just undef it at first

Reported-by: lkp@intel.com
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/hamradio/mkiss.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 63502a85a9751..049264a7d9611 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -31,6 +31,8 @@
 
 #define AX_MTU		236
 
+/* some arch define END as assembly function ending, just undef it */
+#undef	END
 /* SLIP/KISS protocol characters. */
 #define END             0300		/* indicates end of frame	*/
 #define ESC             0333		/* indicates byte stuffing	*/
-- 
GitLab


From 97581b56b59fc79d6c376994a2e219349c31873f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 8 Mar 2022 19:09:39 +0100
Subject: [PATCH 4349/4878] Linux 5.10.104

Link: https://lore.kernel.org/r/20220307091644.179885033@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Link: https://lore.kernel.org/r/20220307162142.066663718@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 829a66a36807e..6e6efe5516872 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 103
+SUBLEVEL = 104
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 8ffc7ff817fe552592daa2b0de1760e3539663f3 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Fri, 25 Feb 2022 16:43:25 -0800
Subject: [PATCH 4350/4878] ANDROID: mm: do not count cma_alloc_fail on
 __GFP_NORETRY

Do not account __GFP_NORETRY allocation failure as cma_alloc_fail
since it's not critical failure(i.e., the caller with __GFP_NORETRY
should always carry on the fallback plan). It's also good for
compatibility POV with upstream since upstream cma_alloc_fail
only counts cma_alloc_fail with !__GFP_NORETRY since upstream
doesn't support __GFP_NORTRY yet.

Bug: 220669548
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I377e6b033c3786e10b6b1c814037a4fc40e20a73
---
 mm/cma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/cma.c b/mm/cma.c
index ae36ce52c215e..0b1d69a919709 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -571,7 +571,7 @@ out:
 	if (page) {
 		count_vm_event(CMA_ALLOC_SUCCESS);
 		cma_sysfs_account_success_pages(cma, count);
-	} else {
+	} else if (!(gfp_mask & __GFP_NORETRY)) {
 		count_vm_event(CMA_ALLOC_FAIL);
 		if (cma)
 			cma_sysfs_account_fail_pages(cma, count);
-- 
GitLab


From 8efdff35e3052e44d519ccfb9d50594f5df0240b Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Fri, 4 Mar 2022 20:11:59 +0000
Subject: [PATCH 4351/4878] ANDROID: fuse-bpf: Move fd operations to be
 synchronous

Bug: 222619123
Test: fuse_test passes, on cuttlefish CtsCameraTestCases passes
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I54c148206b5ad5ae5737939bcb076cbe6c40129c
---
 fs/fuse/backing.c                             | 78 +++++--------------
 fs/fuse/dev.c                                 | 12 +++
 fs/fuse/dir.c                                 | 34 ++++----
 fs/fuse/fuse_i.h                              |  6 +-
 fs/fuse/inode.c                               |  3 -
 .../selftests/filesystems/fuse/fuse_test.c    |  4 +-
 6 files changed, 55 insertions(+), 82 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 3c38a3c6cd43b..7cb9a17eb71c2 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -13,53 +13,12 @@
 
 #include "../internal.h"
 
-/* Reimplement these functions since fget_task is not exported */
-static struct file *fuse__fget_files(struct files_struct *files,
-		unsigned int fd, fmode_t mask, unsigned int refs)
-{
-	struct file *file;
-
-	rcu_read_lock();
-loop:
-	file = fcheck_files(files, fd);
-	if (file) {
-		/* File object ref couldn't be taken.
-		 * dup2() atomicity guarantee is the reason
-		 * we loop to catch the new file (or NULL pointer)
-		 */
-		if (file->f_mode & mask)
-			file = NULL;
-		else if (!get_file_rcu_many(file, refs))
-			goto loop;
-	}
-	rcu_read_unlock();
-	return file;
-}
-
-static struct file *fuse_fget_task(struct task_struct *task, unsigned int fd)
-{
-	struct file *file = NULL;
-
-	task_lock(task);
-	if (task->files)
-		file = fuse__fget_files(task->files, fd, 0, 1);
-	task_unlock(task);
-
-	return file;
-}
-
-struct file *fuse_fget(struct fuse_conn *fc, unsigned int fd)
+struct bpf_prog *fuse_get_bpf_prog(struct file *file)
 {
-	return fuse_fget_task(fc->task, fd);
-}
-
-struct bpf_prog *fuse_get_bpf_prog(struct fuse_conn *fc, unsigned int fd)
-{
-	struct file *bpf_file = fuse_fget(fc, fd);
 	struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
 
-	if (!bpf_file)
-		goto out;
+       if (!file || IS_ERR(file))
+               return bpf_prog;
 	/**
 	 * Two ways of getting a bpf prog from another task's fd, since
 	 * bpf_prog_get_type_dev only works with an fd
@@ -75,10 +34,10 @@ struct bpf_prog *fuse_get_bpf_prog(struct fuse_conn *fc, unsigned int fd)
 	 * compilable as a module.
 	 */
 #if 0
-	if (bpf_file->f_op != &bpf_prog_fops)
+	if (file->f_op != &bpf_prog_fops)
 		goto out;
 
-	bpf_prog = bpf_file->private_data;
+	bpf_prog = file->private_data;
 	if (bpf_prog->type == BPF_PROG_TYPE_FUSE)
 		bpf_prog_inc(bpf_prog);
 	else
@@ -86,24 +45,25 @@ struct bpf_prog *fuse_get_bpf_prog(struct fuse_conn *fc, unsigned int fd)
 
 #else
 	{
-		int task_fd = get_unused_fd_flags(bpf_file->f_flags);
+		int task_fd = get_unused_fd_flags(file->f_flags);
 
 		if (task_fd < 0)
 			goto out;
-		fd_install(task_fd, bpf_file);
+
+		fd_install(task_fd, file);
 
 		bpf_prog = bpf_prog_get_type_dev(task_fd, BPF_PROG_TYPE_FUSE,
 						 false);
-		__close_fd(current->files, task_fd);
 
-		/* TODO I think this file is probably being leaked */
-		bpf_file = NULL;
+		/* Close the fd, which also closes the file */
+		__close_fd(current->files, task_fd);
+		file = NULL;
 	}
 #endif
 
 out:
-	if (bpf_file)
-		fput(bpf_file);
+	if (file)
+		fput(file);
 	return bpf_prog;
 }
 
@@ -992,8 +952,11 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 		break;
 
 	case FUSE_ACTION_REPLACE: {
-		struct fuse_conn *fc = get_fuse_mount(dir)->fc;
-		struct bpf_prog *bpf_prog = fuse_get_bpf_prog(fc, febo->bpf_fd);
+		struct file *bpf_file = (struct file*) febo->bpf_fd;
+		struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
+
+		if (bpf_file && !IS_ERR(bpf_file))
+			bpf_prog = fuse_get_bpf_prog(bpf_file);
 
 		if (IS_ERR(bpf_prog))
 			return ERR_PTR(PTR_ERR(bpf_prog));
@@ -1022,9 +985,8 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 		struct file *backing_file;
 
 		fc = get_fuse_mount(dir)->fc;
-		backing_file = fuse_fget(fc, febo->backing_fd);
-		__close_fd(fc->task->files, febo->backing_fd);
-		if (!backing_file)
+		backing_file = (struct file *) febo->backing_fd;
+		if (!backing_file || IS_ERR(backing_file))
 			return ERR_PTR(-EIO);
 
 		iput(get_fuse_inode(inode)->backing_inode);
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 0085728fe64a7..2b0e9f16fe24c 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1943,6 +1943,18 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
 			kern_path(path, 0, req->args->canonical_path);
 	}
 
+	if (!err && (req->in.h.opcode == FUSE_LOOKUP ||
+		     req->in.h.opcode == (FUSE_LOOKUP | FUSE_POSTFILTER)) &&
+		req->args->out_args[1].size == sizeof(struct fuse_entry_bpf_out)) {
+		struct fuse_entry_bpf_out *febo = (struct fuse_entry_bpf_out *)
+				req->args->out_args[1].value;
+
+		if (febo->backing_action == FUSE_ACTION_REPLACE)
+			febo->backing_fd = (uint64_t) fget(febo->backing_fd);
+		if (febo->bpf_action == FUSE_ACTION_REPLACE)
+			febo->bpf_fd = (uint64_t) fget(febo->bpf_fd);
+	}
+
 	spin_lock(&fpq->lock);
 	clear_bit(FR_LOCKED, &req->flags);
 	if (!fpq->connected)
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 64b3b8a2718c2..d123058e89a71 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -243,8 +243,19 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 		 * change the backing file ever, so not sure what is correct
 		 * here yet, especially as we can't return an error to user
 		 */
-		if (bpf_outarg.backing_action == FUSE_ACTION_REPLACE)
-			__close_fd(fm->fc->task->files, bpf_outarg.backing_fd);
+		if (bpf_outarg.backing_action == FUSE_ACTION_REPLACE) {
+			struct file *file = (struct file *) bpf_outarg.backing_fd;
+
+			if (file && !IS_ERR(file))
+				fput(file);
+		}
+
+		if (bpf_outarg.bpf_action == FUSE_ACTION_REPLACE) {
+			struct file *file = (struct file *) bpf_outarg.bpf_fd;
+
+			if (file && !IS_ERR(file))
+				fput(file);
+		}
 
 		/* Zero nodeid is same as -ENOENT */
 		if (!ret && !outarg.nodeid)
@@ -529,26 +540,21 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name
 		if (bpf_outarg->backing_action != FUSE_ACTION_REPLACE)
 			goto out_queue_forget;
 
-		backing_file = fuse_fget(fm->fc, bpf_outarg->backing_fd);
-		if (!backing_file)
+		backing_file = (struct file *) bpf_outarg->backing_fd;
+		if (!backing_file || IS_ERR(backing_file))
 			goto out_queue_forget;
 
-		/* TODO userspace doesn't really know when the right time to
-		 * close the passed fd is. This because after replying to the
-		 * driver request, so assume that after a lookup with bpf_args,
-		 * the daemon passes the fd ownership to the kernel, which also
-		 * takes care of closing it at the right time.
-		 */
-		__close_fd(fm->fc->task->files, bpf_outarg->backing_fd);
-
 		backing_inode = backing_file->f_inode;
 		*inode = fuse_iget_backing(sb, backing_inode);
 		if (!*inode)
 			goto bpf_outarg_out;
 
 		if (bpf_outarg->bpf_action == FUSE_ACTION_REPLACE) {
-			struct bpf_prog *bpf_prog = fuse_get_bpf_prog(fm->fc,
-							bpf_outarg->bpf_fd);
+			struct file *bpf_file = (struct file*) bpf_outarg->bpf_fd;
+			struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
+
+			if (bpf_file && !IS_ERR(bpf_file))
+				bpf_prog = fuse_get_bpf_prog(bpf_file);;
 
 			if (IS_ERR(bpf_prog)) {
 				iput(*inode);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 675db33e9c0c2..a75d82539ac79 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -845,9 +845,6 @@ struct fuse_conn {
 
 	/** Protects passthrough_req */
 	spinlock_t passthrough_req_lock;
-
-	/** task_struct for fd lookups in fuse-bpf */
-	struct task_struct *task;
 };
 
 /*
@@ -1310,8 +1307,7 @@ ssize_t fuse_passthrough_mmap(struct file *file, struct vm_area_struct *vma);
 
 /* backing.c */
 
-struct file *fuse_fget(struct fuse_conn *fc, unsigned int fd);
-struct bpf_prog *fuse_get_bpf_prog(struct fuse_conn *fc, unsigned int fd);
+struct bpf_prog *fuse_get_bpf_prog(struct file *file);
 
 /*
  * Dummy io passed to fuse_bpf_backing when io operation needs no scratch space
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index e529fe0e147fa..e9e445d7959d7 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1218,7 +1218,6 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args,
 		fc->minor = arg->minor;
 		fc->max_write = arg->minor < 5 ? 4096 : arg->max_write;
 		fc->max_write = max_t(unsigned, 4096, fc->max_write);
-		fc->task = get_task_struct(current);
 		fc->conn_init = 1;
 	}
 	kfree(ia);
@@ -1295,8 +1294,6 @@ void fuse_free_conn(struct fuse_conn *fc)
 	idr_for_each(&fc->passthrough_req, free_fuse_passthrough, NULL);
 	idr_destroy(&fc->passthrough_req);
 	kfree_rcu(fc, rcu);
-	if (fc->task)
-		put_task_struct(fc->task);
 }
 EXPORT_SYMBOL_GPL(fuse_free_conn);
 
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 96178eea67f86..9117b21cc461e 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -1145,6 +1145,7 @@ static int bpf_test_set_backing(const char *mount_dir)
 			}));
 		read(fuse_dev, bytes_in, sizeof(bytes_in));
 		TESTSYSCALL(close(bpf_fd));
+		TESTSYSCALL(close(backing_fd));
 	FUSE_DONE
 
 	result = TEST_SUCCESS;
@@ -1234,8 +1235,7 @@ static int bpf_test_remove_backing(const char *mount_dir)
 
 		while (read(fuse_dev, bytes_in, sizeof(bytes_in)) != -1)
 			;
-		TESTEQUAL(close(backing_fd), -1);
-		TESTEQUAL(errno, EBADF);
+		TESTSYSCALL(close(backing_fd));
 	FUSE_DONE
 
 	result = TEST_SUCCESS;
-- 
GitLab


From 5da5b1871950c71755fa5a0b88c78e2f2623da24 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Mon, 7 Mar 2022 20:56:03 +0000
Subject: [PATCH 4352/4878] ANDROID: fuse-bpf: Fix CONFIG_FUSE_BPF typo in
 FUSE_FSYNCDIR

Bug: 222497969
Test: idle kingdom launches sucessfully with no mediaprovider crashes
Signed-off-by: Paul Lawrence <paullawrence@google.com>

Change-Id: Ia5f842fd4a0bf9a21d7c88874b13b84d42ab2c4d
---
 fs/fuse/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index d123058e89a71..1081bec2fee19 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1727,7 +1727,7 @@ static int fuse_dir_fsync(struct file *file, loff_t start, loff_t end,
 	if (fuse_is_bad(inode))
 		return -EIO;
 
-#ifdef CONFIG_FUSE_BFP
+#ifdef CONFIG_FUSE_BPF
 	{
 		struct fuse_err_ret fer;
 
-- 
GitLab


From 863efab1fc12cad15399f422aea058f5bd4cc242 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Tue, 8 Mar 2022 11:42:43 +0100
Subject: [PATCH 4353/4878] ANDROID: GKI: disable rndis USB gadget driver

It's obsolete and only works for unsupported Windows hosts and is
totally insecure and should never be used.  Remove it in order to remove
a potential attack vector on Android systems.

Bug: 157965270
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I45acc8b894220cdc9f170f9d5428aca195e9af38
---
 arch/arm64/configs/gki_defconfig | 1 -
 arch/x86/configs/gki_defconfig   | 1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 857bf01d19b74..53a35bfa911ff 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -500,7 +500,6 @@ CONFIG_USB_CONFIGFS_SERIAL=y
 CONFIG_USB_CONFIGFS_ACM=y
 CONFIG_USB_CONFIGFS_NCM=y
 CONFIG_USB_CONFIGFS_ECM=y
-CONFIG_USB_CONFIGFS_RNDIS=y
 CONFIG_USB_CONFIGFS_EEM=y
 CONFIG_USB_CONFIGFS_MASS_STORAGE=y
 CONFIG_USB_CONFIGFS_F_FS=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 5eb7990013e97..76cb80cb70c3f 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -450,7 +450,6 @@ CONFIG_USB_CONFIGFS_SERIAL=y
 CONFIG_USB_CONFIGFS_ACM=y
 CONFIG_USB_CONFIGFS_NCM=y
 CONFIG_USB_CONFIGFS_ECM=y
-CONFIG_USB_CONFIGFS_RNDIS=y
 CONFIG_USB_CONFIGFS_EEM=y
 CONFIG_USB_CONFIGFS_MASS_STORAGE=y
 CONFIG_USB_CONFIGFS_F_FS=y
-- 
GitLab


From 681ba23265bee4f2f0bd461df7d0025f4df17f09 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Tue, 8 Mar 2022 19:43:55 +0000
Subject: [PATCH 4354/4878] Revert "ANDROID: fips140: support "evaluation
 testing" builds via build.sh"

This reverts commit b51d71e4aa5f6caecd42f2428869674119b11f74 because
this script didn't end up being used.  Remove it for now.

This script was planned to be used originally; however, in fact making a
custom build of fips140.ko alone isn't sufficient to support the testing
requirements, some of which were unknown at the time.  The current
procedure is now to use a device-specific script to build custom boot
images; see http://go/fips140-for-android-gki#heading=h.bcuh1mqjhpc4.

Bug: 188620248
Change-Id: Ia6e41e3885fad7716d41ab466a656f097f3de2af
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 arch/arm64/configs/fips140_gki_eval_testing.fragment | 1 -
 build.config.gki.aarch64.fips140_eval_testing        | 3 ---
 2 files changed, 4 deletions(-)
 delete mode 100644 arch/arm64/configs/fips140_gki_eval_testing.fragment
 delete mode 100644 build.config.gki.aarch64.fips140_eval_testing

diff --git a/arch/arm64/configs/fips140_gki_eval_testing.fragment b/arch/arm64/configs/fips140_gki_eval_testing.fragment
deleted file mode 100644
index d8b16022a6dd3..0000000000000
--- a/arch/arm64/configs/fips140_gki_eval_testing.fragment
+++ /dev/null
@@ -1 +0,0 @@
-CONFIG_CRYPTO_FIPS140_MOD_EVAL_TESTING=y
diff --git a/build.config.gki.aarch64.fips140_eval_testing b/build.config.gki.aarch64.fips140_eval_testing
deleted file mode 100644
index 66df5fe1bb4f4..0000000000000
--- a/build.config.gki.aarch64.fips140_eval_testing
+++ /dev/null
@@ -1,3 +0,0 @@
-. ${ROOT_DIR}/${KERNEL_DIR}/build.config.gki.aarch64.fips140
-
-PRE_DEFCONFIG_CMDS+=" cat ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/fips140_gki_eval_testing.fragment >> ${ROOT_DIR}/${KERNEL_DIR}/arch/arm64/configs/${DEFCONFIG};"
-- 
GitLab


From 66e59d2b416b6c647bf7b62468154cfa77bb98a2 Mon Sep 17 00:00:00 2001
From: Barry Song <song.bao.hua@hisilicon.com>
Date: Wed, 3 Mar 2021 11:49:15 +1300
Subject: [PATCH 4355/4878] UPSTREAM: genirq: Add IRQF_NO_AUTOEN for
 request_irq/nmi()

Many drivers don't want interrupts enabled automatically via request_irq().
So they are handling this issue by either way of the below two:

(1)
  irq_set_status_flags(irq, IRQ_NOAUTOEN);
  request_irq(dev, irq...);

(2)
  request_irq(dev, irq...);
  disable_irq(irq);

The code in the second way is silly and unsafe. In the small time gap
between request_irq() and disable_irq(), interrupts can still come.

The code in the first way is safe though it's subobtimal.

Add a new IRQF_NO_AUTOEN flag which can be handed in by drivers to
request_irq() and request_nmi(). It prevents the automatic enabling of the
requested interrupt/nmi in the same safe way as #1 above. With that the
various usage sites of #1 and #2 above can be simplified and corrected.

Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: dmitry.torokhov@gmail.com
Link: https://lore.kernel.org/r/20210302224916.13980-2-song.bao.hua@hisilicon.com
(cherry picked from commit cbe16f35bee6880becca6f20d2ebf6b457148552)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: Ia3fa1c3c583c1562f2029250ac315ac2346def18
---
 include/linux/interrupt.h |  4 ++++
 kernel/irq/manage.c       | 11 +++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 386ddf43e2f2b..6ff7d1731037f 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -61,6 +61,9 @@
  *                interrupt handler after suspending interrupts. For system
  *                wakeup devices users need to implement wakeup detection in
  *                their interrupt handlers.
+ * IRQF_NO_AUTOEN - Don't enable IRQ or NMI automatically when users request it.
+ *                Users will enable it explicitly by enable_irq() or enable_nmi()
+ *                later.
  */
 #define IRQF_SHARED		0x00000080
 #define IRQF_PROBE_SHARED	0x00000100
@@ -74,6 +77,7 @@
 #define IRQF_NO_THREAD		0x00010000
 #define IRQF_EARLY_RESUME	0x00020000
 #define IRQF_COND_SUSPEND	0x00040000
+#define IRQF_NO_AUTOEN		0x00080000
 
 #define IRQF_TIMER		(__IRQF_TIMER | IRQF_NO_SUSPEND | IRQF_NO_THREAD)
 
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ec1c6e6ed7cf7..147c5de13da78 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1628,7 +1628,8 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 			irqd_set(&desc->irq_data, IRQD_NO_BALANCING);
 		}
 
-		if (irq_settings_can_autoenable(desc)) {
+		if (!(new->flags & IRQF_NO_AUTOEN) &&
+		    irq_settings_can_autoenable(desc)) {
 			irq_startup(desc, IRQ_RESEND, IRQ_START_COND);
 		} else {
 			/*
@@ -2021,10 +2022,15 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
 	 * which interrupt is which (messes up the interrupt freeing
 	 * logic etc).
 	 *
+	 * Also shared interrupts do not go well with disabling auto enable.
+	 * The sharing interrupt might request it while it's still disabled
+	 * and then wait for interrupts forever.
+	 *
 	 * Also IRQF_COND_SUSPEND only makes sense for shared interrupts and
 	 * it cannot be set along with IRQF_NO_SUSPEND.
 	 */
 	if (((irqflags & IRQF_SHARED) && !dev_id) ||
+	    ((irqflags & IRQF_SHARED) && (irqflags & IRQF_NO_AUTOEN)) ||
 	    (!(irqflags & IRQF_SHARED) && (irqflags & IRQF_COND_SUSPEND)) ||
 	    ((irqflags & IRQF_NO_SUSPEND) && (irqflags & IRQF_COND_SUSPEND)))
 		return -EINVAL;
@@ -2180,7 +2186,8 @@ int request_nmi(unsigned int irq, irq_handler_t handler,
 
 	desc = irq_to_desc(irq);
 
-	if (!desc || irq_settings_can_autoenable(desc) ||
+	if (!desc || (irq_settings_can_autoenable(desc) &&
+	    !(irqflags & IRQF_NO_AUTOEN)) ||
 	    !irq_settings_can_request(desc) ||
 	    WARN_ON(irq_settings_is_per_cpu_devid(desc)) ||
 	    !irq_supports_nmi(desc))
-- 
GitLab


From 17ef79620f2d8545488fb4f0d2285f8e21e1f3f8 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 19 Oct 2021 15:01:45 +0800
Subject: [PATCH 4356/4878] UPSTREAM: virtio_config: introduce a new
 .enable_cbs method

This patch introduces a new method to enable the callbacks for config
and virtqueues. This will be used for making sure the virtqueue
callbacks are only enabled after virtio_device_ready() if transport
implements this method.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211019070152.8236-4-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit d50497eb4e554e1f0351e1836ee7241c059592e6)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I17ea164aa100d690ebde3b2f6c2e5514a9b5cfd9
---
 include/linux/virtio_config.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 8519b3ae5d52e..4d107ad311490 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -23,6 +23,8 @@ struct virtio_shm_region {
  *       any of @get/@set, @get_status/@set_status, or @get_features/
  *       @finalize_features are NOT safe to be called from an atomic
  *       context.
+ * @enable_cbs: enable the callbacks
+ *      vdev: the virtio_device
  * @get: read the value of a configuration field
  *	vdev: the virtio_device
  *	offset: the offset of the configuration field
@@ -75,6 +77,7 @@ struct virtio_shm_region {
  */
 typedef void vq_callback_t(struct virtqueue *);
 struct virtio_config_ops {
+	void (*enable_cbs)(struct virtio_device *vdev);
 	void (*get)(struct virtio_device *vdev, unsigned offset,
 		    void *buf, unsigned len);
 	void (*set)(struct virtio_device *vdev, unsigned offset,
@@ -229,6 +232,9 @@ void virtio_device_ready(struct virtio_device *dev)
 {
 	unsigned status = dev->config->get_status(dev);
 
+	if (dev->config->enable_cbs)
+                  dev->config->enable_cbs(dev);
+
 	BUG_ON(status & VIRTIO_CONFIG_S_DRIVER_OK);
 	dev->config->set_status(dev, status | VIRTIO_CONFIG_S_DRIVER_OK);
 }
-- 
GitLab


From b2652b8a360c3f7c09a0b56107977796f004aa7e Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 19 Oct 2021 15:01:46 +0800
Subject: [PATCH 4357/4878] UPSTREAM: virtio_pci: harden MSI-X interrupts

We used to synchronize pending MSI-X irq handlers via
synchronize_irq(), this may not work for the untrusted device which
may keep sending interrupts after reset which may lead unexpected
results. Similarly, we should not enable MSI-X interrupt until the
device is ready. So this patch fixes those two issues by:

1) switching to use disable_irq() to prevent the virtio interrupt
   handlers to be called after the device is reset.
2) using IRQF_NO_AUTOEN and enable the MSI-X irq during .ready()

This can make sure the virtio interrupt handler won't be called before
virtio_device_ready() and after reset.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211019070152.8236-5-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 9e35276a5344f74d4a3600fc4100b3dd251d5c56)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I63832b87a567c4447064143fa62386c59481d43b
---
 drivers/virtio/virtio_pci_common.c | 27 +++++++++++++++++++++------
 drivers/virtio/virtio_pci_common.h |  6 ++++--
 drivers/virtio/virtio_pci_legacy.c |  5 +++--
 drivers/virtio/virtio_pci_modern.c |  6 ++++--
 4 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index b35bb2d57f62c..8d8f83aca7218 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -24,8 +24,8 @@ MODULE_PARM_DESC(force_legacy,
 		 "Force legacy mode for transitional virtio 1 devices");
 #endif
 
-/* wait for pending irq handlers */
-void vp_synchronize_vectors(struct virtio_device *vdev)
+/* disable irq handlers */
+void vp_disable_cbs(struct virtio_device *vdev)
 {
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	int i;
@@ -34,7 +34,20 @@ void vp_synchronize_vectors(struct virtio_device *vdev)
 		synchronize_irq(vp_dev->pci_dev->irq);
 
 	for (i = 0; i < vp_dev->msix_vectors; ++i)
-		synchronize_irq(pci_irq_vector(vp_dev->pci_dev, i));
+		disable_irq(pci_irq_vector(vp_dev->pci_dev, i));
+}
+
+/* enable irq handlers */
+void vp_enable_cbs(struct virtio_device *vdev)
+{
+	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+	int i;
+
+	if (vp_dev->intx_enabled)
+		return;
+
+	for (i = 0; i < vp_dev->msix_vectors; ++i)
+		enable_irq(pci_irq_vector(vp_dev->pci_dev, i));
 }
 
 /* the notify function used when creating a virt queue */
@@ -141,7 +154,8 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 	snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
 		 "%s-config", name);
 	err = request_irq(pci_irq_vector(vp_dev->pci_dev, v),
-			  vp_config_changed, 0, vp_dev->msix_names[v],
+			  vp_config_changed, IRQF_NO_AUTOEN,
+			  vp_dev->msix_names[v],
 			  vp_dev);
 	if (err)
 		goto error;
@@ -160,7 +174,8 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 		snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
 			 "%s-virtqueues", name);
 		err = request_irq(pci_irq_vector(vp_dev->pci_dev, v),
-				  vp_vring_interrupt, 0, vp_dev->msix_names[v],
+				  vp_vring_interrupt, IRQF_NO_AUTOEN,
+				  vp_dev->msix_names[v],
 				  vp_dev);
 		if (err)
 			goto error;
@@ -337,7 +352,7 @@ static int vp_find_vqs_msix(struct virtio_device *vdev, unsigned nvqs,
 			 "%s-%s",
 			 dev_name(&vp_dev->vdev.dev), names[i]);
 		err = request_irq(pci_irq_vector(vp_dev->pci_dev, msix_vec),
-				  vring_interrupt, 0,
+				  vring_interrupt, IRQF_NO_AUTOEN,
 				  vp_dev->msix_names[msix_vec],
 				  vqs[i]);
 		if (err)
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index b2f0eb4067cbf..33058e31e470b 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -120,8 +120,10 @@ static struct virtio_pci_device *to_vp_device(struct virtio_device *vdev)
 	return container_of(vdev, struct virtio_pci_device, vdev);
 }
 
-/* wait for pending irq handlers */
-void vp_synchronize_vectors(struct virtio_device *vdev);
+/* disable irq handlers */
+void vp_disable_cbs(struct virtio_device *vdev);
+/* enable irq handlers */
+void vp_enable_cbs(struct virtio_device *vdev);
 /* the notify function used when creating a virt queue */
 bool vp_notify(struct virtqueue *vq);
 /* the config->del_vqs() implementation */
diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c
index d62e9835aeeca..d9c95d89cdd08 100644
--- a/drivers/virtio/virtio_pci_legacy.c
+++ b/drivers/virtio/virtio_pci_legacy.c
@@ -97,8 +97,8 @@ static void vp_reset(struct virtio_device *vdev)
 	/* Flush out the status write, and flush in device writes,
 	 * including MSi-X interrupts, if any. */
 	ioread8(vp_dev->ioaddr + VIRTIO_PCI_STATUS);
-	/* Flush pending VQ/configuration callbacks. */
-	vp_synchronize_vectors(vdev);
+	/* Disable VQ/configuration callbacks. */
+	vp_disable_cbs(vdev);
 }
 
 static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
@@ -194,6 +194,7 @@ static void del_vq(struct virtio_pci_vq_info *info)
 }
 
 static const struct virtio_config_ops virtio_pci_config_ops = {
+	.enable_cbs	= vp_enable_cbs,
 	.get		= vp_get,
 	.set		= vp_set,
 	.get_status	= vp_get_status,
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 3d6ae5a5e252e..d30e00852318e 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -291,8 +291,8 @@ static void vp_reset(struct virtio_device *vdev)
 	 */
 	while (vp_ioread8(&vp_dev->common->device_status))
 		msleep(1);
-	/* Flush pending VQ/configuration callbacks. */
-	vp_synchronize_vectors(vdev);
+	/* Disable VQ/configuration callbacks. */
+	vp_disable_cbs(vdev);
 }
 
 static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
@@ -538,6 +538,7 @@ static bool vp_get_shm_region(struct virtio_device *vdev,
 }
 
 static const struct virtio_config_ops virtio_pci_config_nodev_ops = {
+	.enable_cbs	= vp_enable_cbs,
 	.get		= NULL,
 	.set		= NULL,
 	.generation	= vp_generation,
@@ -555,6 +556,7 @@ static const struct virtio_config_ops virtio_pci_config_nodev_ops = {
 };
 
 static const struct virtio_config_ops virtio_pci_config_ops = {
+	.enable_cbs	= vp_enable_cbs,
 	.get		= vp_get,
 	.set		= vp_set,
 	.generation	= vp_generation,
-- 
GitLab


From 9313f4468124e403f84a6cb9efb211310d720e4a Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 19 Oct 2021 15:01:47 +0800
Subject: [PATCH 4358/4878] UPSTREAM: virtio-pci: harden INTX interrupts

This patch tries to make sure the virtio interrupt handler for INTX
won't be called after a reset and before virtio_device_ready(). We
can't use IRQF_NO_AUTOEN since we're using shared interrupt
(IRQF_SHARED). So this patch tracks the INTX enabling status in a new
intx_soft_enabled variable and toggle it during in
vp_disable/enable_vectors(). The INTX interrupt handler will check
intx_soft_enabled before processing the actual interrupt.

Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211019070152.8236-6-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 080cd7c3ac8701081d143a15ba17dd9475313188)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: If90814df2859e742df050d406f2d67547bd6dbb3
---
 drivers/virtio/virtio_pci_common.c | 23 +++++++++++++++++++++--
 drivers/virtio/virtio_pci_common.h |  1 +
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 8d8f83aca7218..1bce254a462a9 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -30,8 +30,16 @@ void vp_disable_cbs(struct virtio_device *vdev)
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	int i;
 
-	if (vp_dev->intx_enabled)
+	if (vp_dev->intx_enabled) {
+		/*
+		 * The below synchronize() guarantees that any
+		 * interrupt for this line arriving after
+		 * synchronize_irq() has completed is guaranteed to see
+		 * intx_soft_enabled == false.
+		 */
+		WRITE_ONCE(vp_dev->intx_soft_enabled, false);
 		synchronize_irq(vp_dev->pci_dev->irq);
+	}
 
 	for (i = 0; i < vp_dev->msix_vectors; ++i)
 		disable_irq(pci_irq_vector(vp_dev->pci_dev, i));
@@ -43,8 +51,16 @@ void vp_enable_cbs(struct virtio_device *vdev)
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	int i;
 
-	if (vp_dev->intx_enabled)
+	if (vp_dev->intx_enabled) {
+		disable_irq(vp_dev->pci_dev->irq);
+		/*
+		 * The above disable_irq() provides TSO ordering and
+		 * as such promotes the below store to store-release.
+		 */
+		WRITE_ONCE(vp_dev->intx_soft_enabled, true);
+		enable_irq(vp_dev->pci_dev->irq);
 		return;
+	}
 
 	for (i = 0; i < vp_dev->msix_vectors; ++i)
 		enable_irq(pci_irq_vector(vp_dev->pci_dev, i));
@@ -97,6 +113,9 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
 	struct virtio_pci_device *vp_dev = opaque;
 	u8 isr;
 
+	if (!READ_ONCE(vp_dev->intx_soft_enabled))
+		return IRQ_NONE;
+
 	/* reading the ISR has the effect of also clearing it so it's very
 	 * important to save off the value. */
 	isr = ioread8(vp_dev->isr);
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index 33058e31e470b..94cc3cb0f18f1 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -82,6 +82,7 @@ struct virtio_pci_device {
 	/* MSI-X support */
 	int msix_enabled;
 	int intx_enabled;
+	bool intx_soft_enabled;
 	cpumask_var_t *msix_affinity_masks;
 	/* Name strings for interrupts. This size should be enough,
 	 * and I'm too lazy to allocate each name separately. */
-- 
GitLab


From e1714028b298dcc3e72524d88f423a5b04e0ffdb Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Wed, 9 Mar 2022 08:58:09 -0800
Subject: [PATCH 4359/4878] ANDROID: GKI: 3/9/2022 KMI update

Set KMI_GENERATION=1 for 3/9 KMI update

Leaf changes summary: 36 artifacts changed (1 filtered out)
Changed leaf types summary: 1 (1 filtered out) leaf types changed
Removed/Changed/Added functions summary: 0 Removed, 35 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

35 functions with some sub-type change:

  [C] 'function int blk_mq_virtio_map_queues(blk_mq_queue_map*, virtio_device*, int)' at blk-mq-virtio.c:24:1 has some sub-type changes:
    CRC (modversions) changed from 0xa6345867 to 0x535973fd

  [C] 'function int register_virtio_device(virtio_device*)' at virtio.c:344:1 has some sub-type changes:
    CRC (modversions) changed from 0x16faab28 to 0x3477d03c

  [C] 'function int register_virtio_driver(virtio_driver*)' at virtio.c:320:1 has some sub-type changes:
    CRC (modversions) changed from 0x23e1647b to 0x9964a633

  ... 32 omitted; 35 symbols have only CRC changes

'struct virtio_config_ops at virtio_config.h:77:1' changed:
  type size changed from 896 to 960 (in bits)
  1 data member insertion:
    'void (virtio_device*)* enable_cbs', at offset 0 (in bits) at virtio_config.h:80:1
  there are data member changes:
    14 ('void (virtio_device*, unsigned int, void*, unsigned int)* get' .. 'typedef bool (virtio_device*, virtio_shm_region*, typedef u8)* get_shm_region') offsets changed (by +64 bits)
  35 impacted interfaces

Bug: 222115076
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: Iadce3c50cbd69e46ad20994235316fecfdc0d00c
---
 android/abi_gki_aarch64.xml | 17192 +++++++++++++---------------------
 build.config.common         |     2 +-
 2 files changed, 6288 insertions(+), 10906 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 3fb6d47352e1b..4d635669e6617 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -463,7 +463,7 @@
       <elf-symbol name='blk_mq_unique_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x105e2054'/>
       <elf-symbol name='blk_mq_unquiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90fe5761'/>
       <elf-symbol name='blk_mq_update_nr_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9a5012c'/>
-      <elf-symbol name='blk_mq_virtio_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6345867'/>
+      <elf-symbol name='blk_mq_virtio_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x535973fd'/>
       <elf-symbol name='blk_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae23816'/>
       <elf-symbol name='blk_put_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f6aab10'/>
       <elf-symbol name='blk_put_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f39576'/>
@@ -2612,8 +2612,8 @@
       <elf-symbol name='register_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9c425de'/>
       <elf-symbol name='register_sysctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cd91791'/>
       <elf-symbol name='register_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a449c4f'/>
-      <elf-symbol name='register_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16faab28'/>
-      <elf-symbol name='register_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23e1647b'/>
+      <elf-symbol name='register_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3477d03c'/>
+      <elf-symbol name='register_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9964a633'/>
       <elf-symbol name='register_vmap_purge_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26ed2186'/>
       <elf-symbol name='regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51bf0b28'/>
       <elf-symbol name='regmap_async_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27dd59c0'/>
@@ -3301,8 +3301,8 @@
       <elf-symbol name='unregister_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8395c86'/>
       <elf-symbol name='unregister_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa1eb910'/>
       <elf-symbol name='unregister_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd691c6a9'/>
-      <elf-symbol name='unregister_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44cbf32d'/>
-      <elf-symbol name='unregister_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3dcff9b'/>
+      <elf-symbol name='unregister_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b941620'/>
+      <elf-symbol name='unregister_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ca6c42'/>
       <elf-symbol name='unregister_vmap_purge_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c69a63'/>
       <elf-symbol name='up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2a6966'/>
       <elf-symbol name='up_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b50e951'/>
@@ -3489,12 +3489,12 @@
       <elf-symbol name='video_device_release_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c8f292d'/>
       <elf-symbol name='video_ioctl2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82cf2086'/>
       <elf-symbol name='video_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdca301e3'/>
-      <elf-symbol name='virtio_break_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x603b3a79'/>
-      <elf-symbol name='virtio_check_driver_offered_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7481335c'/>
-      <elf-symbol name='virtio_config_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x142771e8'/>
-      <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea972fc0'/>
-      <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x500b67be'/>
-      <elf-symbol name='virtio_max_dma_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75bb98d2'/>
+      <elf-symbol name='virtio_break_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75ab92b0'/>
+      <elf-symbol name='virtio_check_driver_offered_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0792ccc'/>
+      <elf-symbol name='virtio_config_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5514a43b'/>
+      <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f7a054f'/>
+      <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc712be6f'/>
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@@ -3525,26 +3525,26 @@
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@@ -3565,11 +3565,11 @@
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+          <var-decl name='stack' type-id='4cb10997' visibility='default' filepath='include/media/media-entity.h' line='93' column='1'/>
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@@ -55065,7 +52891,7 @@
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-          <var-decl name='tlv' type-id='ac5ab656' visibility='default' filepath='include/sound/control.h' line='74' column='1'/>
+          <var-decl name='tlv' type-id='ac5ab667' visibility='default' filepath='include/sound/control.h' line='74' column='1'/>
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@@ -55098,10 +52924,10 @@
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@@ -55126,7 +52952,6 @@
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@@ -55295,7 +53120,7 @@
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-          <var-decl name='' type-id='ac5ab628' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='41' column='1'/>
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@@ -55402,7 +53227,6 @@
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+      <class-decl name='serial_icounter_struct' is-struct='yes' visibility='default' is-declaration-only='yes' id='8816ddc1'/>
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@@ -55603,20 +53388,6 @@
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@@ -55678,7 +53449,7 @@
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-          <var-decl name='info' type-id='ac5ab623' visibility='default' filepath='include/media/media-entity.h' line='319' column='1'/>
+          <var-decl name='info' type-id='ac5ab5d1' visibility='default' filepath='include/media/media-entity.h' line='319' column='1'/>
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@@ -55850,7 +53621,7 @@
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-          <var-decl name='' type-id='ac5ab6a6' visibility='default' filepath='include/uapi/linux/bpf.h' line='4428' column='1'/>
+          <var-decl name='' type-id='ac5ab658' visibility='default' filepath='include/uapi/linux/bpf.h' line='4428' column='1'/>
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@@ -55947,7 +53718,7 @@
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-          <var-decl name='value' type-id='ac5ab657' visibility='default' filepath='include/uapi/sound/asound.h' line='1042' column='1'/>
+          <var-decl name='value' type-id='ac5ab668' visibility='default' filepath='include/uapi/sound/asound.h' line='1042' column='1'/>
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@@ -56195,17 +53966,6 @@
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@@ -56238,12 +53998,6 @@
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@@ -56467,15 +54221,10 @@
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-          <var-decl name='' type-id='ac5ab6ff' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1'/>
+          <var-decl name='' type-id='ac5ab670' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1'/>
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@@ -56501,7 +54250,7 @@
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-          <var-decl name='granu' type-id='ac5ab5f9' visibility='default' filepath='include/uapi/linux/iommu.h' line='270' column='1'/>
+          <var-decl name='granu' type-id='ac5ab5cb' visibility='default' filepath='include/uapi/linux/iommu.h' line='270' column='1'/>
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@@ -56573,65 +54322,7 @@
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@@ -57427,7 +55105,6 @@
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@@ -58139,61 +55813,61 @@
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+          <var-decl name='skc_listener' type-id='f772df6d' visibility='default' filepath='include/net/sock.h' line='216' column='1'/>
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+          <var-decl name='skc_incoming_cpu' type-id='95e97e5e' visibility='default' filepath='include/net/sock.h' line='235' column='1'/>
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+          <var-decl name='tcp_rtx_queue' type-id='dec44472' visibility='default' filepath='include/net/sock.h' line='440' column='1'/>
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+          <var-decl name='udp_table' type-id='115daa23' visibility='default' filepath='include/net/sock.h' line='1237' column='1'/>
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-          <var-decl name='cvt' type-id='e6001147' visibility='default' filepath='include/drm/drm_edid.h' line='156' column='1'/>
+          <var-decl name='raw_hash' type-id='eb2c56dc' visibility='default' filepath='include/net/sock.h' line='1238' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='smc_hash' type-id='aa8162a3' visibility='default' filepath='include/net/sock.h' line='1239' column='1'/>
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-          <var-decl name='hdmi_type1' type-id='4ba022f8' visibility='default' filepath='include/linux/hdmi.h' line='387' column='1'/>
+          <var-decl name='d_lru' type-id='72f469ec' visibility='default' filepath='include/linux/dcache.h' line='109' column='1'/>
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+          <var-decl name='d_wait' type-id='03d48e96' visibility='default' filepath='include/linux/dcache.h' line='110' column='1'/>
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+          <var-decl name='mux' type-id='ad4dd73d' visibility='default' filepath='include/linux/pinctrl/machine.h' line='73' column='1'/>
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         <data-member access='public'>
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+          <var-decl name='hr' type-id='a222ac53' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='535' column='1'/>
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-          <var-decl name='u8_data' type-id='d2f7b56a' visibility='default' filepath='include/linux/property.h' line='274' column='1'/>
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         <data-member access='public'>
-          <var-decl name='u16_data' type-id='02580c2f' visibility='default' filepath='include/linux/property.h' line='275' column='1'/>
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-          <var-decl name='u32_data' type-id='1872161b' visibility='default' filepath='include/linux/property.h' line='276' column='1'/>
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-          <var-decl name='u64_data' type-id='64a61909' visibility='default' filepath='include/linux/property.h' line='277' column='1'/>
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         <data-member access='public'>
-          <var-decl name='str' type-id='75e4a9bd' visibility='default' filepath='include/linux/property.h' line='278' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fe'>
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           <var-decl name='kfifo' type-id='bbbc6c1e' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
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@@ -71035,37 +68026,43 @@
           <var-decl name='ptr_const' type-id='eaa32e2f' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
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-          <var-decl name='in' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='125' column='1'/>
+          <var-decl name='vendor_ops' type-id='1e9ca7e3' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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-          <var-decl name='out' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='126' column='1'/>
+          <var-decl name='' type-id='e7f43fb9' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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+        <data-member access='public'>
+          <var-decl name='' type-id='ac5ab600' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab600'/>
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-          <var-decl name='arm_lpae_s1_cfg' type-id='e7f43fef' visibility='default' filepath='include/linux/io-pgtable.h' line='108' column='1'/>
+          <var-decl name='payload' type-id='e369592a' visibility='default' filepath='include/linux/usb/pd.h' line='198' column='1'/>
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-          <var-decl name='arm_lpae_s2_cfg' type-id='e7f43ff0' visibility='default' filepath='include/linux/io-pgtable.h' line='121' column='1'/>
+          <var-decl name='ext_msg' type-id='9d90420f' visibility='default' filepath='include/linux/usb/pd.h' line='199' column='1'/>
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-          <var-decl name='arm_v7s_cfg' type-id='e7f43ff1' visibility='default' filepath='include/linux/io-pgtable.h' line='128' column='1'/>
+          <var-decl name='screen_base' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='481' column='1'/>
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-          <var-decl name='arm_mali_lpae_cfg' type-id='e7f43ff2' visibility='default' filepath='include/linux/io-pgtable.h' line='133' column='1'/>
+          <var-decl name='screen_buffer' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='482' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab603'>
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-          <var-decl name='ul' type-id='7359adad' visibility='default' filepath='include/asm-generic/msi.h' line='26' column='1'/>
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-          <var-decl name='ptr' type-id='eaa32e2f' visibility='default' filepath='include/asm-generic/msi.h' line='27' column='1'/>
+          <var-decl name='destroy_next' type-id='994d9d61' visibility='default' filepath='include/linux/fsnotify_backend.h' line='364' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab604'>
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           <var-decl name='proc_ops' type-id='33d70f0f' visibility='default' filepath='fs/proc/internal.h' line='43' column='1'/>
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@@ -71073,7 +68070,7 @@
           <var-decl name='proc_dir_ops' type-id='61758ee5' visibility='default' filepath='fs/proc/internal.h' line='44' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab605'>
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           <var-decl name='seq_ops' type-id='943a1b48' visibility='default' filepath='fs/proc/internal.h' line='48' column='1'/>
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@@ -71081,570 +68078,560 @@
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-        <data-member access='public'>
-          <var-decl name='smc_hash' type-id='aa8162a3' visibility='default' filepath='include/net/sock.h' line='1239' column='1'/>
+          <var-decl name='' type-id='e7f43ffc' visibility='default' filepath='include/net/sch_generic.h' line='338' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='511' column='1' id='ac5ab649'>
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@@ -71920,7 +68739,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='604' column='1' id='ac5ab64a'>
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@@ -71937,7 +68756,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='661' column='1' id='ac5ab64b'>
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@@ -71945,15 +68764,23 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='667' column='1' id='ac5ab64c'>
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/btf.h' line='49' column='1' id='ac5ab64d'>
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+          <var-decl name='size' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/btf.h' line='50' column='1'/>
+        </data-member>
+        <data-member access='public'>
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@@ -71961,7 +68788,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/if.h' line='210' column='1' id='ac5ab64f'>
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@@ -71987,12 +68814,12 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/if.h' line='236' column='1' id='ac5ab650'>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/if.h' line='241' column='1' id='ac5ab651'>
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@@ -72033,447 +68860,389 @@
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-          <var-decl name='u6_addr16' type-id='7f112b69' visibility='default' filepath='include/uapi/linux/in6.h' line='37' column='1'/>
+          <var-decl name='hentry' type-id='03a4a074' visibility='default' filepath='kernel/workqueue_internal.h' line='28' column='1'/>
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+        <data-member access='public'>
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@@ -72481,7 +69250,7 @@
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@@ -72500,7 +69269,7 @@
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@@ -72545,7 +69313,7 @@
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@@ -72583,7 +69351,6 @@
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@@ -72621,7 +69388,6 @@
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@@ -72972,7 +69738,6 @@
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-          <var-decl name='_call_addr' type-id='eaa32e2f' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='105' column='1'/>
+          <var-decl name='name' type-id='80f4b756' visibility='default' filepath='include/linux/trace_events.h' line='203' column='1'/>
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-          <var-decl name='_syscall' type-id='95e97e5e' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='106' column='1'/>
+          <var-decl name='size' type-id='2448a865' visibility='default' filepath='include/linux/trace_events.h' line='204' column='1'/>
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-          <var-decl name='_lower' type-id='eaa32e2f' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='86' column='1'/>
+          <var-decl name='align' type-id='2448a865' visibility='default' filepath='include/linux/trace_events.h' line='205' column='1'/>
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-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='_dummy_pkey' type-id='8e100159' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='91' column='1'/>
+          <var-decl name='is_signed' type-id='2448a865' visibility='default' filepath='include/linux/trace_events.h' line='206' column='1'/>
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-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='_pkey' type-id='3f1a6b60' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='92' column='1'/>
+        <data-member access='public' layout-offset-in-bits='160'>
+          <var-decl name='filter_type' type-id='2448a865' visibility='default' filepath='include/linux/trace_events.h' line='207' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/perf_event.h' line='1122' column='1' id='e7f43f7f'>
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           <var-decl name='mem_op' type-id='d3130597' visibility='default' filepath='include/uapi/linux/perf_event.h' line='1123' column='1'/>
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@@ -98254,38 +93578,7 @@
           <var-decl name='mem_rsvd' type-id='d3130597' visibility='default' filepath='include/uapi/linux/perf_event.h' line='1131' column='1'/>
         </data-member>
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-          <var-decl name='load_avg' type-id='7359adad' visibility='default' filepath='kernel/sched/sched.h' line='571' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='util_avg' type-id='7359adad' visibility='default' filepath='kernel/sched/sched.h' line='572' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='192'>
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-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='rmem_alloc' type-id='49178f86' visibility='default' filepath='include/net/sock.h' line='404' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='len' type-id='95e97e5e' visibility='default' filepath='include/net/sock.h' line='405' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='head' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='406' column='1'/>
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-          <var-decl name='tail' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='407' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='block/blk-mq.h' line='19' column='1' id='e7f43f80'>
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@@ -98293,7 +93586,7 @@
           <var-decl name='rq_lists' type-id='e8ef2bd5' visibility='default' filepath='block/blk-mq.h' line='21' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/blk-mq.h' line='17' column='1' id='e7f43fd5'>
+      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/blk-mq.h' line='17' column='1' id='e7f43f81'>
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           <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/linux/blk-mq.h' line='19' column='1'/>
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@@ -98304,7 +93597,7 @@
           <var-decl name='state' type-id='7359adad' visibility='default' filepath='include/linux/blk-mq.h' line='32' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='5120' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/crypto/internal/aead.h' line='21' column='1' id='e7f43fd7'>
+      <class-decl name='__anonymous_struct__' size-in-bits='5120' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/crypto/internal/aead.h' line='21' column='1' id='e7f43f82'>
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           <var-decl name='head' type-id='e3204322' visibility='default' filepath='include/crypto/internal/aead.h' line='22' column='1'/>
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@@ -98312,7 +93605,7 @@
           <var-decl name='base' type-id='85c172d2' visibility='default' filepath='include/crypto/internal/aead.h' line='23' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='6144' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/crypto/internal/hash.h' line='35' column='1' id='e7f43fd8'>
+      <class-decl name='__anonymous_struct__' size-in-bits='6144' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/crypto/internal/hash.h' line='35' column='1' id='e7f43f83'>
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@@ -98320,7 +93613,23 @@
           <var-decl name='base' type-id='85c172d2' visibility='default' filepath='include/crypto/internal/hash.h' line='37' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/pm_domain.h' line='157' column='1' id='e7f43fdb'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/crypto/internal/skcipher.h' line='37' column='1' id='e7f43f84'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='page' type-id='02f11ed4' visibility='default' filepath='include/crypto/internal/skcipher.h' line='38' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='offset' type-id='7359adad' visibility='default' filepath='include/crypto/internal/skcipher.h' line='39' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/crypto/internal/skcipher.h' line='42' column='1' id='e7f43f85'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='page' type-id='8bff8096' visibility='default' filepath='include/crypto/internal/skcipher.h' line='43' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='addr' type-id='eaa32e2f' visibility='default' filepath='include/crypto/internal/skcipher.h' line='44' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/pm_domain.h' line='157' column='1' id='e7f43f86'>
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@@ -98328,7 +93637,7 @@
           <var-decl name='lock_flags' type-id='7359adad' visibility='default' filepath='include/linux/pm_domain.h' line='159' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/base/regmap/internal.h' line='52' column='1' id='e7f43fdc'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/base/regmap/internal.h' line='52' column='1' id='e7f43f87'>
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@@ -98336,7 +93645,7 @@
           <var-decl name='spinlock_flags' type-id='7359adad' visibility='default' filepath='drivers/base/regmap/internal.h' line='54' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='1088' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/efi.h' line='269' column='1' id='e7f43f90'>
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@@ -98383,7 +93692,7 @@
           <var-decl name='query_variable_info' type-id='25269d6f' visibility='default' filepath='include/linux/efi.h' line='284' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/drm/drm_device.h' line='76' column='1' id='e7f43f92'>
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@@ -98394,7 +93703,7 @@
           <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/drm/drm_device.h' line='82' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='107' column='1' id='e7f43f93'>
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@@ -98414,7 +93723,7 @@
           <var-decl name='j' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='113' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='115' column='1' id='e7f43fea'>
+      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='115' column='1' id='e7f43f94'>
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@@ -98437,7 +93746,7 @@
           <var-decl name='preferred_refresh' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='122' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/iio/iio.h' line='242' column='1' id='e7f43f95'>
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@@ -98457,26 +93766,26 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='97' column='1' id='e7f43f96'>
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-          <var-decl name='tcr' type-id='e7f43ff3' visibility='default' filepath='include/linux/io-pgtable.h' line='106' column='1'/>
+          <var-decl name='tcr' type-id='e7f43f9a' visibility='default' filepath='include/linux/io-pgtable.h' line='106' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='110' column='1' id='e7f43f97'>
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-          <var-decl name='vtcr' type-id='e7f43ff4' visibility='default' filepath='include/linux/io-pgtable.h' line='120' column='1'/>
+          <var-decl name='vtcr' type-id='e7f43f9b' visibility='default' filepath='include/linux/io-pgtable.h' line='120' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='123' column='1' id='e7f43f98'>
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@@ -98490,7 +93799,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='130' column='1' id='e7f43f99'>
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@@ -98498,7 +93807,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='99' column='1' id='e7f43f9a'>
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@@ -98518,7 +93827,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/io-pgtable.h' line='112' column='1' id='e7f43f9b'>
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@@ -98541,15 +93850,7 @@
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-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='ac5ab624' visibility='default' filepath='drivers/media/rc/rc-core-priv.h' line='52' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='buf' type-id='55a95556' visibility='default' filepath='drivers/media/rc/rc-core-priv.h' line='52' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/media-entity.h' line='90' column='1' id='e7f43f9c'>
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@@ -98557,7 +93858,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/media-entity.h' line='315' column='1' id='e7f43f9d'>
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@@ -98565,8 +93866,7 @@
           <var-decl name='minor' type-id='19c2251e' visibility='default' filepath='include/media/media-entity.h' line='317' column='1'/>
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-      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/media/usb/uvc/uvcvideo.h' line='331' column='1' id='e7f43ffb'/>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-async.h' line='84' column='1' id='e7f44001'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-async.h' line='84' column='1' id='e7f43f9e'>
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@@ -98574,7 +93874,7 @@
           <var-decl name='address' type-id='8efea9e5' visibility='default' filepath='include/media/v4l2-async.h' line='86' column='1'/>
         </data-member>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-async.h' line='88' column='1' id='e7f44002'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-async.h' line='88' column='1' id='e7f43f9f'>
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@@ -98582,7 +93882,7 @@
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         </data-member>
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-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1153' column='1' id='e7f44003'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1153' column='1' id='e7f43fa0'>
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@@ -98608,17 +93908,17 @@
           <var-decl name='priv' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1161' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2037' column='1' id='e7f44004'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2037' column='1' id='e7f43fa1'>
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-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2073' column='1' id='e7f44005'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2073' column='1' id='e7f43fa2'>
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-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2077' column='1' id='e7f44006'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2077' column='1' id='e7f43fa3'>
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@@ -98626,17 +93926,96 @@
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         </data-member>
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-      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2087' column='1' id='e7f44007'>
+      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2087' column='1' id='e7f43fa4'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='294' column='1' id='e7f43fa5'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='793' column='1' id='e7f43fa6'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='is_data' type-id='f9b06939' visibility='default' filepath='include/linux/cgroup-defs.h' line='794' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1'>
+          <var-decl name='no_refcnt' type-id='f9b06939' visibility='default' filepath='include/linux/cgroup-defs.h' line='795' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2'>
+          <var-decl name='unused' type-id='f9b06939' visibility='default' filepath='include/linux/cgroup-defs.h' line='796' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='8'>
+          <var-decl name='padding' type-id='f9b06939' visibility='default' filepath='include/linux/cgroup-defs.h' line='797' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='16'>
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+        </data-member>
+        <data-member access='public' layout-offset-in-bits='32'>
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+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='47' column='1' id='e7f43fa7'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='dport' type-id='84a5c3d4' visibility='default' filepath='include/net/flow.h' line='48' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='16'>
+          <var-decl name='sport' type-id='84a5c3d4' visibility='default' filepath='include/net/flow.h' line='49' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='52' column='1' id='e7f43fa8'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='type' type-id='8f048e17' visibility='default' filepath='include/net/flow.h' line='53' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='8'>
+          <var-decl name='code' type-id='8f048e17' visibility='default' filepath='include/net/flow.h' line='54' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='57' column='1' id='e7f43fa9'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='dport' type-id='23119536' visibility='default' filepath='include/net/flow.h' line='58' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='16'>
+          <var-decl name='sport' type-id='23119536' visibility='default' filepath='include/net/flow.h' line='59' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='8' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='65' column='1' id='e7f43faa'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='type' type-id='8f048e17' visibility='default' filepath='include/net/flow.h' line='66' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='170' column='1' id='e7f43fab'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='skc_daddr' type-id='78a133c2' visibility='default' filepath='include/net/sock.h' line='171' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='32'>
+          <var-decl name='skc_rcv_saddr' type-id='78a133c2' visibility='default' filepath='include/net/sock.h' line='172' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='182' column='1' id='e7f43fac'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='skc_dport' type-id='84a5c3d4' visibility='default' filepath='include/net/sock.h' line='183' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='16'>
+          <var-decl name='skc_num' type-id='d315442e' visibility='default' filepath='include/net/sock.h' line='184' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='403' column='1' id='e7f43fad'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='rmem_alloc' type-id='49178f86' visibility='default' filepath='include/net/sock.h' line='404' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='32'>
+          <var-decl name='len' type-id='95e97e5e' visibility='default' filepath='include/net/sock.h' line='405' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='head' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='406' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='tail' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='407' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='173' column='1' id='e7f43fae'>
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@@ -98677,7 +94056,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/nvdimm/nd-core.h' line='40' column='1' id='e7f43faf'>
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@@ -98694,7 +94073,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufshci.h' line='309' column='1' id='e7f43fb0'>
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@@ -98708,7 +94087,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufshci.h' line='335' column='1' id='e7f43fb1'>
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@@ -98722,7 +94101,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='1024' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufshci.h' line='348' column='1' id='e7f43fb2'>
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@@ -98751,7 +94130,7 @@
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufshci.h' line='499' column='1' id='e7f43fb3'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufshci.h' line='508' column='1' id='e7f43fb4'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='99' column='1' id='e7f43fb5'>
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+          <var-decl name='buf' type-id='ac5ab5fd' visibility='default' filepath='include/linux/spi/spi-mem.h' line='127' column='1'/>
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-          <var-decl name='max' type-id='bd54fe1a' visibility='default' filepath='include/uapi/sound/asound.h' line='1026' column='1'/>
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+          <var-decl name='extack' type-id='5799dc94' visibility='default' filepath='include/linux/netdevice.h' line='920' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='923' column='1' id='e7f43ff8'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='offmap' type-id='366d2695' visibility='default' filepath='include/linux/netdevice.h' line='924' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='927' column='1' id='e7f43ff9'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='pool' type-id='81e0c1b8' visibility='default' filepath='include/linux/netdevice.h' line='928' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='queue_id' type-id='1dc6a898' visibility='default' filepath='include/linux/netdevice.h' line='929' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netlink.h' line='326' column='1' id='e7f43ffa'>
+        <data-member access='public' layout-offset-in-bits='0'>
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+        </data-member>
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+          <var-decl name='max' type-id='9b7e9486' visibility='default' filepath='include/net/netlink.h' line='327' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='331' column='1' id='e7f43ffb'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='class' type-id='7359adad' visibility='default' filepath='include/net/sch_generic.h' line='332' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='classid' type-id='19c2251e' visibility='default' filepath='include/net/sch_generic.h' line='333' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='338' column='1' id='e7f43ffc'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='ingress' type-id='b50a4934' visibility='default' filepath='include/net/sch_generic.h' line='339' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='qstats' type-id='338303f5' visibility='default' filepath='include/net/sch_generic.h' line='340' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='483' column='1' id='e7f43ffd'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='chain' type-id='45305972' visibility='default' filepath='include/net/sch_generic.h' line='484' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='filter_chain_list' type-id='72f469ec' visibility='default' filepath='include/net/sch_generic.h' line='485' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='485' column='1' id='e7f43ffe'>
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           <var-decl name='map_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='486' column='1'/>
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@@ -99142,7 +95176,7 @@
           <var-decl name='btf_vmlinux_value_type_id' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='502' column='1'/>
         </data-member>
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='508' column='1' id='e7f43fff'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='map_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='509' column='1'/>
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@@ -99150,13 +95184,13 @@
           <var-decl name='key' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='510' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='' type-id='ac5ab690' visibility='default' filepath='include/uapi/linux/bpf.h' line='511' column='1'/>
+          <var-decl name='' type-id='ac5ab649' visibility='default' filepath='include/uapi/linux/bpf.h' line='511' column='1'/>
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         <data-member access='public' layout-offset-in-bits='192'>
           <var-decl name='flags' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='515' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='448' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='518' column='1' id='e7f44000'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='in_batch' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='519' column='1'/>
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@@ -99182,7 +95216,7 @@
           <var-decl name='flags' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='532' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='960' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='535' column='1' id='e7f44001'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='prog_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='536' column='1'/>
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@@ -99247,7 +95281,7 @@
           <var-decl name='attach_prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='560' column='1'/>
         </data-member>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='563' column='1' id='e7f4404e'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='563' column='1' id='e7f44002'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='pathname' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='564' column='1'/>
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@@ -99258,7 +95292,7 @@
           <var-decl name='file_flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='566' column='1'/>
         </data-member>
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+      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='569' column='1' id='e7f44003'>
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           <var-decl name='target_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='570' column='1'/>
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@@ -99275,7 +95309,7 @@
           <var-decl name='replace_bpf_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='574' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='576' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='580' column='1' id='e7f44004'>
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           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='581' column='1'/>
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@@ -99319,9 +95353,9 @@
           <var-decl name='cpu' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='600' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='603' column='1' id='e7f44005'>
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-          <var-decl name='' type-id='ac5ab691' visibility='default' filepath='include/uapi/linux/bpf.h' line='604' column='1'/>
+          <var-decl name='' type-id='ac5ab64a' visibility='default' filepath='include/uapi/linux/bpf.h' line='604' column='1'/>
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         <data-member access='public' layout-offset-in-bits='32'>
           <var-decl name='next_id' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='611' column='1'/>
@@ -99330,7 +95364,7 @@
           <var-decl name='open_flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='612' column='1'/>
         </data-member>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='615' column='1' id='e7f44006'>
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           <var-decl name='bpf_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='616' column='1'/>
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@@ -99341,7 +95375,7 @@
           <var-decl name='info' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='618' column='1'/>
         </data-member>
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='621' column='1' id='e7f44007'>
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           <var-decl name='target_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='622' column='1'/>
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@@ -99361,7 +95395,7 @@
           <var-decl name='prog_cnt' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='627' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='630' column='1' id='e7f44008'>
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@@ -99369,7 +95403,7 @@
           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='632' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='635' column='1' id='e7f44009'>
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           <var-decl name='btf' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='636' column='1'/>
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@@ -99386,7 +95420,7 @@
           <var-decl name='btf_log_level' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='640' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='643' column='1' id='e7f4400a'>
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           <var-decl name='pid' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='644' column='1'/>
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@@ -99415,12 +95449,12 @@
           <var-decl name='probe_addr' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='656' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='659' column='1' id='e7f4400b'>
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           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='660' column='1'/>
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-          <var-decl name='' type-id='ac5ab692' visibility='default' filepath='include/uapi/linux/bpf.h' line='661' column='1'/>
+          <var-decl name='' type-id='ac5ab64b' visibility='default' filepath='include/uapi/linux/bpf.h' line='661' column='1'/>
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@@ -99429,10 +95463,10 @@
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-          <var-decl name='' type-id='ac5ab693' visibility='default' filepath='include/uapi/linux/bpf.h' line='667' column='1'/>
+          <var-decl name='' type-id='ac5ab64c' visibility='default' filepath='include/uapi/linux/bpf.h' line='667' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='676' column='1' id='e7f4400c'>
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@@ -99446,17 +95480,17 @@
           <var-decl name='old_prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='683' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='686' column='1' id='e7f4400d'>
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           <var-decl name='link_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='687' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='690' column='1' id='e7f4405a'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='690' column='1' id='e7f4400e'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='694' column='1' id='e7f4400f'>
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           <var-decl name='link_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='695' column='1'/>
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@@ -99464,7 +95498,7 @@
           <var-decl name='flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='696' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='699' column='1' id='e7f44010'>
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@@ -99475,7 +95509,7 @@
           <var-decl name='flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='702' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='669' column='1' id='e7f44011'>
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           <var-decl name='iter_info' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='670' column='1'/>
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@@ -99483,177 +95517,57 @@
           <var-decl name='iter_info_len' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='671' column='1'/>
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-          <var-decl name='' type-id='ac5ab6d6' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
+          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='vif' type-id='3a1577c5' visibility='default' filepath='include/net/mac80211.h' line='1077' column='1'/>
@@ -99940,12 +95742,12 @@
           <var-decl name='enqueue_time' type-id='989b7c52' visibility='default' filepath='include/net/mac80211.h' line='1080' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1082' column='1' id='e7f440b0'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1082' column='1' id='e7f4402c'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='cookie' type-id='91ce1af9' visibility='default' filepath='include/net/mac80211.h' line='1083' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1085' column='1' id='e7f440b1'>
+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1085' column='1' id='e7f4402d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='rates' type-id='bd01d8eb' visibility='default' filepath='include/net/mac80211.h' line='1086' column='1'/>
         </data-member>
@@ -99971,7 +95773,7 @@
           <var-decl name='status_driver_data' type-id='24ae0315' visibility='default' filepath='include/net/mac80211.h' line='1093' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1095' column='1' id='e7f440b2'>
+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1095' column='1' id='e7f4402e'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='driver_rates' type-id='bd01d8eb' visibility='default' filepath='include/net/mac80211.h' line='1096' column='1'/>
         </data-member>
@@ -99982,7 +95784,7 @@
           <var-decl name='rate_driver_data' type-id='20b03b60' visibility='default' filepath='include/net/mac80211.h' line='1100' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='112' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1' id='e7f440b3'>
+      <class-decl name='__anonymous_struct__' size-in-bits='112' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1' id='e7f4402f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='rates' type-id='bd01d8eb' visibility='default' filepath='include/net/mac80211.h' line='1064' column='1'/>
         </data-member>
@@ -100002,58 +95804,7 @@
           <var-decl name='skip_table' type-id='f9b06939' visibility='default' filepath='include/net/mac80211.h' line='1070' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1893' column='1' id='e7f440b4'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='iv32' type-id='19c2251e' visibility='default' filepath='include/net/mac80211.h' line='1894' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='iv16' type-id='1dc6a898' visibility='default' filepath='include/net/mac80211.h' line='1895' column='1'/>
-        </data-member>
-      </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1897' column='1' id='e7f440b5'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='pn' type-id='cf1a4160' visibility='default' filepath='include/net/mac80211.h' line='1898' column='1'/>
-        </data-member>
-      </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='136' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1909' column='1' id='e7f440b6'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='seq' type-id='0d8415b5' visibility='default' filepath='include/net/mac80211.h' line='1910' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='seq_len' type-id='f9b06939' visibility='default' filepath='include/net/mac80211.h' line='1911' column='1'/>
-        </data-member>
-      </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='2608' column='1' id='e7f440b7'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='units_pos' type-id='95e97e5e' visibility='default' filepath='include/net/mac80211.h' line='2609' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='accuracy' type-id='9b7e9486' visibility='default' filepath='include/net/mac80211.h' line='2610' column='1'/>
-        </data-member>
-      </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_log.h' line='23' column='1' id='e7f440c1'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='copy_len' type-id='9586cc7b' visibility='default' filepath='include/net/netfilter/nf_log.h' line='27' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='group' type-id='ea2e3595' visibility='default' filepath='include/net/netfilter/nf_log.h' line='28' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='48'>
-          <var-decl name='qthreshold' type-id='ea2e3595' visibility='default' filepath='include/net/netfilter/nf_log.h' line='29' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='flags' type-id='ea2e3595' visibility='default' filepath='include/net/netfilter/nf_log.h' line='30' column='1'/>
-        </data-member>
-      </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_log.h' line='32' column='1' id='e7f440c2'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='level' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_log.h' line='33' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='8'>
-          <var-decl name='logflags' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_log.h' line='34' column='1'/>
-        </data-member>
-      </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='480' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='705' column='1' id='e7f440d3'>
+      <class-decl name='__anonymous_struct__' size-in-bits='480' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='705' column='1' id='e7f44030'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='legacy' type-id='19c2251e' visibility='default' filepath='include/net/cfg80211.h' line='706' column='1'/>
         </data-member>
@@ -100076,7 +95827,7 @@
           <var-decl name='he_ltf' type-id='dc98a315' visibility='default' filepath='include/net/cfg80211.h' line='712' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='4715' column='1' id='e7f440d4'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='4715' column='1' id='e7f44031'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='preambles' type-id='19c2251e' visibility='default' filepath='include/net/cfg80211.h' line='4716' column='1'/>
         </data-member>
@@ -100111,7 +95862,7 @@
           <var-decl name='non_trigger_based' type-id='f9b06939' visibility='default' filepath='include/net/cfg80211.h' line='4726' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='5068' column='1' id='e7f440d5'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='5068' column='1' id='e7f44032'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='peer' type-id='91ce1af9' visibility='default' filepath='include/net/cfg80211.h' line='5069' column='1'/>
         </data-member>
@@ -100122,7 +95873,7 @@
           <var-decl name='max_retry' type-id='f9b06939' visibility='default' filepath='include/net/cfg80211.h' line='5070' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1099' column='1' id='e7f440d6'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1099' column='1' id='e7f44033'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='auth_alg' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1100' column='1'/>
         </data-member>
@@ -100136,12 +95887,12 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1104' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1106' column='1' id='e7f440d7'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1106' column='1' id='e7f44034'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='reason_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1107' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1109' column='1' id='e7f440d8'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1109' column='1' id='e7f44035'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1110' column='1'/>
         </data-member>
@@ -100152,7 +95903,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1113' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1115' column='1' id='e7f440d9'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1115' column='1' id='e7f44036'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1116' column='1'/>
         </data-member>
@@ -100166,7 +95917,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1120' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1122' column='1' id='e7f440da'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1122' column='1' id='e7f44037'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1123' column='1'/>
         </data-member>
@@ -100177,7 +95928,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1125' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='80' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1127' column='1' id='e7f440db'>
+      <class-decl name='__anonymous_struct__' size-in-bits='80' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1127' column='1' id='e7f44038'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1128' column='1'/>
         </data-member>
@@ -100191,7 +95942,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1132' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1137' column='1' id='e7f440dc'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1137' column='1' id='e7f44039'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='timestamp' type-id='a30e8d1f' visibility='default' filepath='include/linux/ieee80211.h' line='1138' column='1'/>
         </data-member>
@@ -100205,20 +95956,20 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1143' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1145' column='1' id='e7f440dd'>
+      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1145' column='1' id='e7f4403a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1147' column='1'/>
         </data-member>
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-      <class-decl name='__anonymous_struct__' size-in-bits='208' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1157' column='1' id='e7f440de'>
+      <class-decl name='__anonymous_struct__' size-in-bits='208' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1157' column='1' id='e7f4403b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='category' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1158' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='8'>
-          <var-decl name='u' type-id='ac5ab6f6' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
+          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f440df'>
+      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403c'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1161' column='1'/>
         </data-member>
@@ -100232,7 +95983,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1164' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='8' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1166' column='1' id='e7f440e0'>
+      <class-decl name='__anonymous_struct__' size-in-bits='8' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1166' column='1' id='e7f4403d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1167' column='1'/>
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@@ -100240,7 +95991,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1168' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1170' column='1' id='e7f440e1'>
+      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1170' column='1' id='e7f4403e'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1171' column='1'/>
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@@ -100251,7 +96002,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1173' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1175' column='1' id='e7f440e2'>
+      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1175' column='1' id='e7f4403f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1176' column='1'/>
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@@ -100268,7 +96019,7 @@
           <var-decl name='msr_elem' type-id='1981efe5' visibility='default' filepath='include/linux/ieee80211.h' line='1180' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1182' column='1' id='e7f440e3'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1182' column='1' id='e7f44040'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1183' column='1'/>
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@@ -100288,7 +96039,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1189' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1191' column='1' id='e7f440e4'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1191' column='1' id='e7f44041'>
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           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1192' column='1'/>
         </data-member>
@@ -100305,7 +96056,7 @@
           <var-decl name='timeout' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1196' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1198' column='1' id='e7f440e5'>
+      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1198' column='1' id='e7f44042'>
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           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1199' column='1'/>
         </data-member>
@@ -100316,7 +96067,7 @@
           <var-decl name='reason_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1201' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1211' column='1' id='e7f440e6'>
+      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1211' column='1' id='e7f44043'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1212' column='1'/>
         </data-member>
@@ -100324,7 +96075,7 @@
           <var-decl name='trans_id' type-id='cf114704' visibility='default' filepath='include/linux/ieee80211.h' line='1213' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1215' column='1' id='e7f440e7'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1215' column='1' id='e7f44044'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1216' column='1'/>
         </data-member>
@@ -100332,7 +96083,7 @@
           <var-decl name='smps_control' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1217' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1219' column='1' id='e7f440e8'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1219' column='1' id='e7f44045'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1220' column='1'/>
         </data-member>
@@ -100340,7 +96091,7 @@
           <var-decl name='chanwidth' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1221' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1223' column='1' id='e7f440e9'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1223' column='1' id='e7f44046'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1224' column='1'/>
         </data-member>
@@ -100354,7 +96105,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1227' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1229' column='1' id='e7f440ea'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1229' column='1' id='e7f44047'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1230' column='1'/>
         </data-member>
@@ -100362,7 +96113,7 @@
           <var-decl name='operating_mode' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1231' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='200' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1233' column='1' id='e7f440eb'>
+      <class-decl name='__anonymous_struct__' size-in-bits='200' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1233' column='1' id='e7f44048'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1234' column='1'/>
         </data-member>
@@ -100373,7 +96124,7 @@
           <var-decl name='position' type-id='0d8415b5' visibility='default' filepath='include/linux/ieee80211.h' line='1236' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1238' column='1' id='e7f440ec'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1238' column='1' id='e7f44049'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1239' column='1'/>
         </data-member>
@@ -100390,7 +96141,7 @@
           <var-decl name='tpc' type-id='8b43e65f' visibility='default' filepath='include/linux/ieee80211.h' line='1243' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='152' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1245' column='1' id='e7f440ed'>
+      <class-decl name='__anonymous_struct__' size-in-bits='152' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1245' column='1' id='e7f4404a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1246' column='1'/>
         </data-member>
@@ -100416,6 +96167,45 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1253' column='1'/>
         </data-member>
       </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1024' column='1' id='e7f4404b'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='min' type-id='bd54fe1a' visibility='default' filepath='include/uapi/sound/asound.h' line='1025' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='max' type-id='bd54fe1a' visibility='default' filepath='include/uapi/sound/asound.h' line='1026' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='step' type-id='bd54fe1a' visibility='default' filepath='include/uapi/sound/asound.h' line='1027' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1029' column='1' id='e7f4404c'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='min' type-id='1eb56b1e' visibility='default' filepath='include/uapi/sound/asound.h' line='1030' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='max' type-id='1eb56b1e' visibility='default' filepath='include/uapi/sound/asound.h' line='1031' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='step' type-id='1eb56b1e' visibility='default' filepath='include/uapi/sound/asound.h' line='1032' column='1'/>
+        </data-member>
+      </class-decl>
+      <class-decl name='__anonymous_struct__' size-in-bits='704' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1034' column='1' id='e7f4404d'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='items' type-id='f0981eeb' visibility='default' filepath='include/uapi/sound/asound.h' line='1035' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='32'>
+          <var-decl name='item' type-id='f0981eeb' visibility='default' filepath='include/uapi/sound/asound.h' line='1036' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='name' type-id='59daf3ef' visibility='default' filepath='include/uapi/sound/asound.h' line='1037' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='576'>
+          <var-decl name='names_ptr' type-id='d3130597' visibility='default' filepath='include/uapi/sound/asound.h' line='1038' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='640'>
+          <var-decl name='names_length' type-id='f0981eeb' visibility='default' filepath='include/uapi/sound/asound.h' line='1039' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='5cb32b9b' size-in-bits='64' id='e7faa6fb'/>
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@@ -100705,29 +96495,6 @@
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-      <class-decl name='kernel_pkey_params' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/keyctl.h' line='29' column='1' id='e8d98129'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='key' type-id='204a4632' visibility='default' filepath='include/linux/keyctl.h' line='30' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='encoding' type-id='80f4b756' visibility='default' filepath='include/linux/keyctl.h' line='31' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='hash_algo' type-id='80f4b756' visibility='default' filepath='include/linux/keyctl.h' line='32' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='info' type-id='26a90f95' visibility='default' filepath='include/linux/keyctl.h' line='33' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='in_len' type-id='3f1a6b60' visibility='default' filepath='include/linux/keyctl.h' line='34' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='288'>
-          <var-decl name='' type-id='ac5ab5fd' visibility='default' filepath='include/linux/keyctl.h' line='35' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='320'>
-          <var-decl name='op' type-id='eec170ff' visibility='default' filepath='include/linux/keyctl.h' line='39' column='1'/>
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@@ -100789,7 +96556,7 @@
           <var-decl name='flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='507' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='288'>
-          <var-decl name='' type-id='ac5ab629' visibility='default' filepath='include/uapi/linux/videodev2.h' line='508' column='1'/>
+          <var-decl name='' type-id='ac5ab5d4' visibility='default' filepath='include/uapi/linux/videodev2.h' line='508' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
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@@ -100808,11 +96575,6 @@
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-      <function-type size-in-bits='64' id='e91cb1f0'>
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-        <parameter type-id='f772df6d'/>
-        <return type-id='b50a4934'/>
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@@ -100870,7 +96632,6 @@
         <enumerator name='BLK_ENCRYPTION_MODE_ADIANTUM' value='3'/>
         <enumerator name='BLK_ENCRYPTION_MODE_MAX' value='4'/>
       </enum-decl>
-      <class-decl name='dax_device' is-struct='yes' visibility='default' is-declaration-only='yes' id='e953a5bd'/>
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@@ -100984,7 +96745,7 @@
           <var-decl name='dev' type-id='fa0b179b' visibility='default' filepath='include/drm/drm_device.h' line='68' column='1'/>
         </data-member>
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-          <var-decl name='managed' type-id='e7f43fe8' visibility='default' filepath='include/drm/drm_device.h' line='83' column='1'/>
+          <var-decl name='managed' type-id='e7f43f92' visibility='default' filepath='include/drm/drm_device.h' line='83' column='1'/>
         </data-member>
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@@ -101155,7 +96916,7 @@
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         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='ftm' type-id='e7f440d4' visibility='default' filepath='include/net/cfg80211.h' line='4727' column='1'/>
+          <var-decl name='ftm' type-id='e7f44031' visibility='default' filepath='include/net/cfg80211.h' line='4727' column='1'/>
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       <class-decl name='clk_rate_request' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/linux/clk-provider.h' line='56' column='1' id='e9bea70c'>
@@ -101183,12 +96944,10 @@
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@@ -101462,26 +97221,6 @@
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-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='fe_logical' type-id='d3130597' visibility='default' filepath='include/uapi/linux/fiemap.h' line='18' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='fe_physical' type-id='d3130597' visibility='default' filepath='include/uapi/linux/fiemap.h' line='20' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='fe_length' type-id='d3130597' visibility='default' filepath='include/uapi/linux/fiemap.h' line='22' column='1'/>
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-        <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='fe_reserved64' type-id='8a7b7524' visibility='default' filepath='include/uapi/linux/fiemap.h' line='23' column='1'/>
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-        <data-member access='public' layout-offset-in-bits='320'>
-          <var-decl name='fe_flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/fiemap.h' line='24' column='1'/>
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-          <var-decl name='fe_reserved' type-id='3fa05d14' visibility='default' filepath='include/uapi/linux/fiemap.h' line='25' column='1'/>
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@@ -101536,7 +97275,6 @@
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@@ -101616,7 +97354,6 @@
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@@ -102094,7 +97831,6 @@
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-      <function-decl name='__get_free_pages' mangled-name='__get_free_pages' filepath='mm/page_alloc.c' line='5191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_free_pages'>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5191' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5191' column='1'/>
+      <function-decl name='__get_free_pages' mangled-name='__get_free_pages' filepath='mm/page_alloc.c' line='5193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_free_pages'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5193' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5193' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='__get_task_comm' mangled-name='__get_task_comm' filepath='fs/exec.c' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_task_comm'>
@@ -110596,9 +105978,9 @@
         <parameter type-id='b50a4934' name='acquired' filepath='drivers/reset/core.c' line='607' column='1'/>
         <return type-id='9f9b8114'/>
       </function-decl>
-      <function-decl name='__page_frag_cache_drain' mangled-name='__page_frag_cache_drain' filepath='mm/page_alloc.c' line='5268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_frag_cache_drain'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5268' column='1'/>
-        <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5268' column='1'/>
+      <function-decl name='__page_frag_cache_drain' mangled-name='__page_frag_cache_drain' filepath='mm/page_alloc.c' line='5270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_frag_cache_drain'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5270' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5270' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='__page_pinner_migration_failed' mangled-name='__page_pinner_migration_failed' filepath='mm/page_pinner.c' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_migration_failed'>
@@ -110726,12 +106108,12 @@
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__request_percpu_irq' mangled-name='__request_percpu_irq' filepath='kernel/irq/manage.c' line='2455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_percpu_irq'>
-        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2455' column='1'/>
-        <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/manage.c' line='2455' column='1'/>
-        <parameter type-id='7359adad' name='flags' filepath='kernel/irq/manage.c' line='2456' column='1'/>
-        <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/manage.c' line='2456' column='1'/>
-        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2457' column='1'/>
+      <function-decl name='__request_percpu_irq' mangled-name='__request_percpu_irq' filepath='kernel/irq/manage.c' line='2462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_percpu_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2462' column='1'/>
+        <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/manage.c' line='2462' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/irq/manage.c' line='2463' column='1'/>
+        <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/manage.c' line='2463' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2464' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='__request_region' mangled-name='__request_region' filepath='kernel/resource.c' line='1126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__request_region'>
@@ -111914,38 +107296,38 @@
         <parameter type-id='f0981eeb' name='cpu' filepath='kernel/cpu.c' line='1619' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='add_device_randomness' mangled-name='add_device_randomness' filepath='include/linux/random.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_device_randomness'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='add_device_randomness' mangled-name='add_device_randomness' filepath='drivers/char/random.c' line='1144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_device_randomness'>
+        <parameter type-id='eaa32e2f' name='buf' filepath='drivers/char/random.c' line='1144' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='drivers/char/random.c' line='1144' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='add_random_ready_callback' mangled-name='add_random_ready_callback' filepath='include/linux/random.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_random_ready_callback'>
-        <parameter type-id='b47c553a'/>
+      <function-decl name='add_random_ready_callback' mangled-name='add_random_ready_callback' filepath='drivers/char/random.c' line='1687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_random_ready_callback'>
+        <parameter type-id='b47c553a' name='rdy' filepath='drivers/char/random.c' line='1687' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='add_timer' mangled-name='add_timer' filepath='include/linux/timer.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_timer'>
-        <parameter type-id='9248e67f'/>
+      <function-decl name='add_timer' mangled-name='add_timer' filepath='kernel/time/timer.c' line='1147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_timer'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='1147' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='add_timer_on' mangled-name='add_timer_on' filepath='include/linux/timer.h' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_timer_on'>
-        <parameter type-id='9248e67f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='add_timer_on' mangled-name='add_timer_on' filepath='kernel/time/timer.c' line='1161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_timer_on'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='1161' column='1'/>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/time/timer.c' line='1161' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='add_uevent_var' mangled-name='add_uevent_var' filepath='include/linux/kobject.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_uevent_var'>
-        <parameter type-id='d9d65b21'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='add_uevent_var' mangled-name='add_uevent_var' filepath='lib/kobject_uevent.c' line='654' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_uevent_var'>
+        <parameter type-id='d9d65b21' name='env' filepath='lib/kobject_uevent.c' line='654' column='1'/>
+        <parameter type-id='80f4b756' name='format' filepath='lib/kobject_uevent.c' line='654' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='add_wait_queue' mangled-name='add_wait_queue' filepath='include/linux/wait.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_wait_queue'>
-        <parameter type-id='3f8b2ed3'/>
-        <parameter type-id='db9d03e3'/>
+      <function-decl name='add_wait_queue' mangled-name='add_wait_queue' filepath='kernel/sched/wait.c' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='add_wait_queue'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='19' column='1'/>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='19' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='adjust_managed_page_count' mangled-name='adjust_managed_page_count' filepath='mm/page_alloc.c' line='7797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='adjust_managed_page_count'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='7797' column='1'/>
-        <parameter type-id='bd54fe1a' name='count' filepath='mm/page_alloc.c' line='7797' column='1'/>
+      <function-decl name='adjust_managed_page_count' mangled-name='adjust_managed_page_count' filepath='mm/page_alloc.c' line='7799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='adjust_managed_page_count'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='7799' column='1'/>
+        <parameter type-id='bd54fe1a' name='count' filepath='mm/page_alloc.c' line='7799' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='aead_register_instance' mangled-name='aead_register_instance' filepath='crypto/aead.c' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aead_register_instance'>
@@ -111953,16 +107335,16 @@
         <parameter type-id='69bd57be' name='inst' filepath='crypto/aead.c' line='287' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='aes_encrypt' mangled-name='aes_encrypt' filepath='include/crypto/aes.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aes_encrypt'>
-        <parameter type-id='825271e7'/>
-        <parameter type-id='8bff8096'/>
-        <parameter type-id='bbaf3419'/>
+      <function-decl name='aes_encrypt' mangled-name='aes_encrypt' filepath='lib/crypto/aes.c' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aes_encrypt'>
+        <parameter type-id='825271e7' name='ctx' filepath='lib/crypto/aes.c' line='266' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='lib/crypto/aes.c' line='266' column='1'/>
+        <parameter type-id='bbaf3419' name='in' filepath='lib/crypto/aes.c' line='266' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='aes_expandkey' mangled-name='aes_expandkey' filepath='include/crypto/aes.h' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aes_expandkey'>
-        <parameter type-id='21370cb4'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='aes_expandkey' mangled-name='aes_expandkey' filepath='lib/crypto/aes.c' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aes_expandkey'>
+        <parameter type-id='21370cb4' name='ctx' filepath='lib/crypto/aes.c' line='186' column='1'/>
+        <parameter type-id='bbaf3419' name='in_key' filepath='lib/crypto/aes.c' line='186' column='1'/>
+        <parameter type-id='f0981eeb' name='key_len' filepath='lib/crypto/aes.c' line='187' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='ahash_register_instance' mangled-name='ahash_register_instance' filepath='crypto/ahash.c' line='632' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ahash_register_instance'>
@@ -112032,38 +107414,38 @@
         <parameter type-id='eaa32e2f' name='cookie' filepath='drivers/iommu/io-pgtable.c' line='31' column='1'/>
         <return type-id='bf4bdb64'/>
       </function-decl>
-      <function-decl name='alloc_netdev_mqs' mangled-name='alloc_netdev_mqs' filepath='include/linux/netdevice.h' line='4465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_netdev_mqs'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='002ac4a6'/>
-        <parameter type-id='548eee3a'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='alloc_netdev_mqs' mangled-name='alloc_netdev_mqs' filepath='net/core/dev.c' line='10565' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_netdev_mqs'>
+        <parameter type-id='95e97e5e' name='sizeof_priv' filepath='net/core/dev.c' line='10565' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='net/core/dev.c' line='10565' column='1'/>
+        <parameter type-id='002ac4a6' name='name_assign_type' filepath='net/core/dev.c' line='10566' column='1'/>
+        <parameter type-id='548eee3a' name='setup' filepath='net/core/dev.c' line='10567' column='1'/>
+        <parameter type-id='f0981eeb' name='txqs' filepath='net/core/dev.c' line='10568' column='1'/>
+        <parameter type-id='f0981eeb' name='rxqs' filepath='net/core/dev.c' line='10568' column='1'/>
         <return type-id='68a2d05b'/>
       </function-decl>
-      <function-decl name='alloc_pages_exact' mangled-name='alloc_pages_exact' filepath='include/linux/gfp.h' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_pages_exact'>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='alloc_pages_exact' mangled-name='alloc_pages_exact' filepath='mm/page_alloc.c' line='5381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_pages_exact'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='5381' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5381' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='alloc_skb_with_frags' mangled-name='alloc_skb_with_frags' filepath='include/linux/skbuff.h' line='1104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_skb_with_frags'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='7292109c'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='alloc_skb_with_frags' mangled-name='alloc_skb_with_frags' filepath='net/core/skbuff.c' line='5865' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_skb_with_frags'>
+        <parameter type-id='7359adad' name='header_len' filepath='net/core/skbuff.c' line='5865' column='1'/>
+        <parameter type-id='7359adad' name='data_len' filepath='net/core/skbuff.c' line='5866' column='1'/>
+        <parameter type-id='95e97e5e' name='max_page_order' filepath='net/core/skbuff.c' line='5867' column='1'/>
+        <parameter type-id='7292109c' name='errcode' filepath='net/core/skbuff.c' line='5868' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='5869' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='alloc_workqueue' mangled-name='alloc_workqueue' filepath='include/linux/workqueue.h' line='413' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_workqueue'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='alloc_workqueue' mangled-name='alloc_workqueue' filepath='kernel/workqueue.c' line='4280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_workqueue'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/workqueue.c' line='4280' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='kernel/workqueue.c' line='4281' column='1'/>
+        <parameter type-id='95e97e5e' name='max_active' filepath='kernel/workqueue.c' line='4282' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='242e3d19'/>
       </function-decl>
       <var-decl name='amba_bustype' type-id='b31bfc8a' mangled-name='amba_bustype' visibility='default' filepath='drivers/amba/bus.c' line='215' column='1' elf-symbol-id='amba_bustype'/>
-      <function-decl name='amba_driver_register' mangled-name='amba_driver_register' filepath='include/linux/amba/bus.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_driver_register'>
-        <parameter type-id='6e829429'/>
+      <function-decl name='amba_driver_register' mangled-name='amba_driver_register' filepath='drivers/amba/bus.c' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_driver_register'>
+        <parameter type-id='6e829429' name='drv' filepath='drivers/amba/bus.c' line='335' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='amba_driver_unregister' mangled-name='amba_driver_unregister' filepath='drivers/amba/bus.c' line='356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='amba_driver_unregister'>
@@ -112096,22 +107478,22 @@
         <parameter type-id='95e97e5e' name='flags' filepath='fs/anon_inodes.c' line='198' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='anon_inode_getfile' mangled-name='anon_inode_getfile' filepath='include/linux/anon_inodes.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='anon_inode_getfile'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='61758ee5'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='anon_inode_getfile' mangled-name='anon_inode_getfile' filepath='fs/anon_inodes.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='anon_inode_getfile'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/anon_inodes.c' line='143' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='fs/anon_inodes.c' line='144' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='fs/anon_inodes.c' line='145' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='fs/anon_inodes.c' line='145' column='1'/>
         <return type-id='77e79a4b'/>
       </function-decl>
       <var-decl name='arch_timer_read_counter' type-id='0e70db3e' mangled-name='arch_timer_read_counter' visibility='default' filepath='drivers/clocksource/arm_arch_timer.c' line='182' column='1' elf-symbol-id='arch_timer_read_counter'/>
-      <function-decl name='argv_free' mangled-name='argv_free' filepath='include/linux/string.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_free'>
-        <parameter type-id='9b23c9ad'/>
+      <function-decl name='argv_free' mangled-name='argv_free' filepath='lib/argv_split.c' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_free'>
+        <parameter type-id='9b23c9ad' name='argv' filepath='lib/argv_split.c' line='35' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='argv_split' mangled-name='argv_split' filepath='include/linux/string.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_split'>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='argv_split' mangled-name='argv_split' filepath='lib/argv_split.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_split'>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/argv_split.c' line='60' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='lib/argv_split.c' line='60' column='1'/>
+        <parameter type-id='7292109c' name='argcp' filepath='lib/argv_split.c' line='60' column='1'/>
         <return type-id='9b23c9ad'/>
       </function-decl>
       <var-decl name='arm64_const_caps_ready' type-id='237c0d27' mangled-name='arm64_const_caps_ready' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='137' column='1' elf-symbol-id='arm64_const_caps_ready'/>
@@ -112133,15 +107515,15 @@
         <parameter type-id='fc616182' name='domain' filepath='kernel/async.c' line='270' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='atomic_notifier_call_chain' mangled-name='atomic_notifier_call_chain' filepath='include/linux/notifier.h' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_call_chain'>
-        <parameter type-id='02162584'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='atomic_notifier_call_chain' mangled-name='atomic_notifier_call_chain' filepath='kernel/notifier.c' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_call_chain'>
+        <parameter type-id='02162584' name='nh' filepath='kernel/notifier.c' line='211' column='1'/>
+        <parameter type-id='7359adad' name='val' filepath='kernel/notifier.c' line='212' column='1'/>
+        <parameter type-id='eaa32e2f' name='v' filepath='kernel/notifier.c' line='212' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='atomic_notifier_chain_register' mangled-name='atomic_notifier_chain_register' filepath='include/linux/notifier.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_chain_register'>
-        <parameter type-id='02162584'/>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='atomic_notifier_chain_register' mangled-name='atomic_notifier_chain_register' filepath='kernel/notifier.c' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_chain_register'>
+        <parameter type-id='02162584' name='nh' filepath='kernel/notifier.c' line='139' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='140' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='atomic_notifier_chain_unregister' mangled-name='atomic_notifier_chain_unregister' filepath='kernel/notifier.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='atomic_notifier_chain_unregister'>
@@ -112149,11 +107531,11 @@
         <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='162' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='autoremove_wake_function' mangled-name='autoremove_wake_function' filepath='include/linux/wait.h' line='1160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='autoremove_wake_function'>
-        <parameter type-id='db9d03e3'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='autoremove_wake_function' mangled-name='autoremove_wake_function' filepath='kernel/sched/wait.c' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='autoremove_wake_function'>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='403' column='1'/>
+        <parameter type-id='f0981eeb' name='mode' filepath='kernel/sched/wait.c' line='403' column='1'/>
+        <parameter type-id='95e97e5e' name='sync' filepath='kernel/sched/wait.c' line='404' column='1'/>
+        <parameter type-id='eaa32e2f' name='key' filepath='kernel/sched/wait.c' line='404' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='available_idle_cpu' mangled-name='available_idle_cpu' filepath='kernel/sched/core.c' line='5383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='available_idle_cpu'>
@@ -112195,10 +107577,10 @@
         <parameter type-id='95e97e5e' name='acknowledged' filepath='block/badblocks.c' line='164' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='badblocks_show' mangled-name='badblocks_show' filepath='include/linux/badblocks.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_show'>
-        <parameter type-id='5760652c'/>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='badblocks_show' mangled-name='badblocks_show' filepath='block/badblocks.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='badblocks_show'>
+        <parameter type-id='5760652c' name='bb' filepath='block/badblocks.c' line='467' column='1'/>
+        <parameter type-id='26a90f95' name='page' filepath='block/badblocks.c' line='467' column='1'/>
+        <parameter type-id='95e97e5e' name='unack' filepath='block/badblocks.c' line='467' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
       <function-decl name='bcmp' mangled-name='bcmp' filepath='lib/string.c' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bcmp'>
@@ -112212,9 +107594,9 @@
         <parameter type-id='a42536cd' name='sectors' filepath='fs/block_dev.c' line='1389' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bdget_disk' mangled-name='bdget_disk' filepath='include/linux/genhd.h' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bdget_disk'>
-        <parameter type-id='33c599da'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='bdget_disk' mangled-name='bdget_disk' filepath='block/genhd.c' line='1048' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bdget_disk'>
+        <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='1048' column='1'/>
+        <parameter type-id='95e97e5e' name='partno' filepath='block/genhd.c' line='1048' column='1'/>
         <return type-id='b88dd945'/>
       </function-decl>
       <function-decl name='bdput' mangled-name='bdput' filepath='fs/block_dev.c' line='968' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bdput'>
@@ -112233,58 +107615,58 @@
         <parameter type-id='7359adad' name='flags' filepath='drivers/gpio/gpio-mmio.c' line='602' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bin2hex' mangled-name='bin2hex' filepath='include/linux/kernel.h' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bin2hex'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='bin2hex' mangled-name='bin2hex' filepath='lib/hexdump.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bin2hex'>
+        <parameter type-id='26a90f95' name='dst' filepath='lib/hexdump.c' line='66' column='1'/>
+        <parameter type-id='eaa32e2f' name='src' filepath='lib/hexdump.c' line='66' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/hexdump.c' line='66' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='bio_add_page' mangled-name='bio_add_page' filepath='include/linux/bio.h' line='448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_add_page'>
-        <parameter type-id='fb55efa1'/>
-        <parameter type-id='02f11ed4'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='bio_add_page' mangled-name='bio_add_page' filepath='block/bio.c' line='934' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_add_page'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/bio.c' line='934' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='block/bio.c' line='934' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='block/bio.c' line='935' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='block/bio.c' line='935' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bio_alloc_bioset' mangled-name='bio_alloc_bioset' filepath='include/linux/bio.h' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_alloc_bioset'>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='38b1e3a0'/>
+      <function-decl name='bio_alloc_bioset' mangled-name='bio_alloc_bioset' filepath='block/bio.c' line='437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_alloc_bioset'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='block/bio.c' line='437' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_iovecs' filepath='block/bio.c' line='437' column='1'/>
+        <parameter type-id='38b1e3a0' name='bs' filepath='block/bio.c' line='438' column='1'/>
         <return type-id='fb55efa1'/>
       </function-decl>
-      <function-decl name='bio_associate_blkg' mangled-name='bio_associate_blkg' filepath='include/linux/bio.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_associate_blkg'>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='bio_associate_blkg' mangled-name='bio_associate_blkg' filepath='block/blk-cgroup.c' line='1877' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_associate_blkg'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/blk-cgroup.c' line='1877' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bio_chain' mangled-name='bio_chain' filepath='include/linux/bio.h' line='446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_chain'>
-        <parameter type-id='fb55efa1'/>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='bio_chain' mangled-name='bio_chain' filepath='block/bio.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_chain'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/bio.c' line='338' column='1'/>
+        <parameter type-id='fb55efa1' name='parent' filepath='block/bio.c' line='338' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bio_clone_blkg_association' mangled-name='bio_clone_blkg_association' filepath='include/linux/bio.h' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_clone_blkg_association'>
-        <parameter type-id='fb55efa1'/>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='bio_clone_blkg_association' mangled-name='bio_clone_blkg_association' filepath='block/blk-cgroup.c' line='1899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_clone_blkg_association'>
+        <parameter type-id='fb55efa1' name='dst' filepath='block/blk-cgroup.c' line='1899' column='1'/>
+        <parameter type-id='fb55efa1' name='src' filepath='block/blk-cgroup.c' line='1899' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bio_crypt_set_ctx' mangled-name='bio_crypt_set_ctx' filepath='include/linux/blk-crypto.h' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_crypt_set_ctx'>
-        <parameter type-id='fb55efa1'/>
-        <parameter type-id='9baaf905'/>
-        <parameter type-id='c8fec899'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='bio_crypt_set_ctx' mangled-name='bio_crypt_set_ctx' filepath='block/blk-crypto.c' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_crypt_set_ctx'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/blk-crypto.c' line='81' column='1'/>
+        <parameter type-id='9baaf905' name='key' filepath='block/blk-crypto.c' line='81' column='1'/>
+        <parameter type-id='c8fec899' name='dun' filepath='block/blk-crypto.c' line='82' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='block/blk-crypto.c' line='82' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bio_endio' mangled-name='bio_endio' filepath='include/linux/bio.h' line='422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_endio'>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='bio_endio' mangled-name='bio_endio' filepath='block/bio.c' line='1429' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_endio'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/bio.c' line='1429' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bio_init' mangled-name='bio_init' filepath='include/linux/bio.h' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_init'>
-        <parameter type-id='fb55efa1'/>
-        <parameter type-id='cddcb53e'/>
-        <parameter type-id='8efea9e5'/>
+      <function-decl name='bio_init' mangled-name='bio_init' filepath='block/bio.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_init'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/bio.c' line='278' column='1'/>
+        <parameter type-id='cddcb53e' name='table' filepath='block/bio.c' line='278' column='1'/>
+        <parameter type-id='8efea9e5' name='max_vecs' filepath='block/bio.c' line='279' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bio_put' mangled-name='bio_put' filepath='include/linux/bio.h' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_put'>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='bio_put' mangled-name='bio_put' filepath='block/bio.c' line='648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bio_put'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/bio.c' line='648' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='bit_wait_timeout' mangled-name='bit_wait_timeout' filepath='kernel/sched/wait_bit.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bit_wait_timeout'>
@@ -112292,32 +107674,32 @@
         <parameter type-id='95e97e5e' name='mode' filepath='kernel/sched/wait_bit.c' line='217' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bitmap_find_next_zero_area_off' mangled-name='bitmap_find_next_zero_area_off' filepath='include/linux/bitmap.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_find_next_zero_area_off'>
-        <parameter type-id='1d2c2b85'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='bitmap_find_next_zero_area_off' mangled-name='bitmap_find_next_zero_area_off' filepath='lib/bitmap.c' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_find_next_zero_area_off'>
+        <parameter type-id='1d2c2b85' name='map' filepath='lib/bitmap.c' line='404' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='lib/bitmap.c' line='405' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='lib/bitmap.c' line='406' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='lib/bitmap.c' line='407' column='1'/>
+        <parameter type-id='7359adad' name='align_mask' filepath='lib/bitmap.c' line='408' column='1'/>
+        <parameter type-id='7359adad' name='align_offset' filepath='lib/bitmap.c' line='409' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='bitmap_from_arr32' mangled-name='bitmap_from_arr32' filepath='include/linux/bitmap.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_from_arr32'>
-        <parameter type-id='1d2c2b85'/>
-        <parameter type-id='aded214c'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='bitmap_from_arr32' mangled-name='bitmap_from_arr32' filepath='lib/bitmap.c' line='1272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_from_arr32'>
+        <parameter type-id='1d2c2b85' name='bitmap' filepath='lib/bitmap.c' line='1272' column='1'/>
+        <parameter type-id='aded214c' name='buf' filepath='lib/bitmap.c' line='1272' column='1'/>
+        <parameter type-id='f0981eeb' name='nbits' filepath='lib/bitmap.c' line='1272' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bitmap_parse' mangled-name='bitmap_parse' filepath='include/linux/bitmap.h' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_parse'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='1d2c2b85'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='bitmap_parse' mangled-name='bitmap_parse' filepath='lib/bitmap.c' line='737' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_parse'>
+        <parameter type-id='80f4b756' name='start' filepath='lib/bitmap.c' line='737' column='1'/>
+        <parameter type-id='f0981eeb' name='buflen' filepath='lib/bitmap.c' line='737' column='1'/>
+        <parameter type-id='1d2c2b85' name='maskp' filepath='lib/bitmap.c' line='738' column='1'/>
+        <parameter type-id='95e97e5e' name='nmaskbits' filepath='lib/bitmap.c' line='738' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bitmap_parselist' mangled-name='bitmap_parselist' filepath='include/linux/bitmap.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_parselist'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='1d2c2b85'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='bitmap_parselist' mangled-name='bitmap_parselist' filepath='lib/bitmap.c' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_parselist'>
+        <parameter type-id='80f4b756' name='buf' filepath='lib/bitmap.c' line='638' column='1'/>
+        <parameter type-id='1d2c2b85' name='maskp' filepath='lib/bitmap.c' line='638' column='1'/>
+        <parameter type-id='95e97e5e' name='nmaskbits' filepath='lib/bitmap.c' line='638' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='bitmap_print_to_pagebuf' mangled-name='bitmap_print_to_pagebuf' filepath='lib/bitmap.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bitmap_print_to_pagebuf'>
@@ -112351,14 +107733,14 @@
         <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='370' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_crypto_init_key' mangled-name='blk_crypto_init_key' filepath='include/linux/blk-crypto.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_crypto_init_key'>
-        <parameter type-id='59b4be32'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='e951e732'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='blk_crypto_init_key' mangled-name='blk_crypto_init_key' filepath='block/blk-crypto.c' line='325' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_crypto_init_key'>
+        <parameter type-id='59b4be32' name='blk_key' filepath='block/blk-crypto.c' line='325' column='1'/>
+        <parameter type-id='bbaf3419' name='raw_key' filepath='block/blk-crypto.c' line='326' column='1'/>
+        <parameter type-id='f0981eeb' name='raw_key_size' filepath='block/blk-crypto.c' line='326' column='1'/>
+        <parameter type-id='b50a4934' name='is_hw_wrapped' filepath='block/blk-crypto.c' line='327' column='1'/>
+        <parameter type-id='e951e732' name='crypto_mode' filepath='block/blk-crypto.c' line='328' column='1'/>
+        <parameter type-id='f0981eeb' name='dun_bytes' filepath='block/blk-crypto.c' line='329' column='1'/>
+        <parameter type-id='f0981eeb' name='data_unit_size' filepath='block/blk-crypto.c' line='330' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='blk_execute_rq' mangled-name='blk_execute_rq' filepath='block/blk-exec.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_execute_rq'>
@@ -112376,12 +107758,12 @@
         <parameter type-id='5afdaa66' name='done' filepath='block/blk-exec.c' line='50' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_freeze_queue_start' mangled-name='blk_freeze_queue_start' filepath='include/linux/blk-mq.h' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_freeze_queue_start'>
-        <parameter type-id='e7d2a5fc'/>
+      <function-decl name='blk_freeze_queue_start' mangled-name='blk_freeze_queue_start' filepath='block/blk-mq.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_freeze_queue_start'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='136' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_get_queue' mangled-name='blk_get_queue' filepath='include/linux/blkdev.h' line='1246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_get_queue'>
-        <parameter type-id='e7d2a5fc'/>
+      <function-decl name='blk_get_queue' mangled-name='blk_get_queue' filepath='block/blk-core.c' line='610' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_get_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='610' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='blk_get_request' mangled-name='blk_get_request' filepath='block/blk-core.c' line='627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_get_request'>
@@ -112394,10 +107776,10 @@
         <parameter type-id='bf8a20d2' name='ksm' filepath='block/keyslot-manager.c' line='625' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_mq_alloc_request' mangled-name='blk_mq_alloc_request' filepath='include/linux/blk-mq.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_request'>
-        <parameter type-id='e7d2a5fc'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='346d62be'/>
+      <function-decl name='blk_mq_alloc_request' mangled-name='blk_mq_alloc_request' filepath='block/blk-mq.c' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_request'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='403' column='1'/>
+        <parameter type-id='f0981eeb' name='op' filepath='block/blk-mq.c' line='403' column='1'/>
+        <parameter type-id='346d62be' name='flags' filepath='block/blk-mq.c' line='404' column='1'/>
         <return type-id='3dad1a48'/>
       </function-decl>
       <function-decl name='blk_mq_alloc_request_hctx' mangled-name='blk_mq_alloc_request_hctx' filepath='block/blk-mq.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_alloc_request_hctx'>
@@ -112424,13 +107806,13 @@
         <parameter type-id='7359adad' name='msecs' filepath='block/blk-mq.c' line='842' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_mq_end_request' mangled-name='blk_mq_end_request' filepath='include/linux/blk-mq.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_end_request'>
-        <parameter type-id='3dad1a48'/>
-        <parameter type-id='f4e2facd'/>
+      <function-decl name='blk_mq_end_request' mangled-name='blk_mq_end_request' filepath='block/blk-mq.c' line='564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_end_request'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='564' column='1'/>
+        <parameter type-id='f4e2facd' name='error' filepath='block/blk-mq.c' line='564' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_mq_free_request' mangled-name='blk_mq_free_request' filepath='include/linux/blk-mq.h' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_free_request'>
-        <parameter type-id='3dad1a48'/>
+      <function-decl name='blk_mq_free_request' mangled-name='blk_mq_free_request' filepath='block/blk-mq.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_free_request'>
+        <parameter type-id='3dad1a48' name='rq' filepath='block/blk-mq.c' line='508' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='blk_mq_free_tag_set' mangled-name='blk_mq_free_tag_set' filepath='block/blk-mq.c' line='3596' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_free_tag_set'>
@@ -112459,8 +107841,8 @@
         <parameter type-id='eaa32e2f' name='queuedata' filepath='block/blk-mq.c' line='3126' column='1'/>
         <return type-id='e7d2a5fc'/>
       </function-decl>
-      <function-decl name='blk_mq_map_queues' mangled-name='blk_mq_map_queues' filepath='include/linux/blk-mq.h' line='530' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_map_queues'>
-        <parameter type-id='187ae308'/>
+      <function-decl name='blk_mq_map_queues' mangled-name='blk_mq_map_queues' filepath='block/blk-mq-cpumap.c' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_map_queues'>
+        <parameter type-id='187ae308' name='qmap' filepath='block/blk-mq-cpumap.c' line='35' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='blk_mq_pci_map_queues' mangled-name='blk_mq_pci_map_queues' filepath='block/blk-mq-pci.c' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_pci_map_queues'>
@@ -112469,8 +107851,8 @@
         <parameter type-id='95e97e5e' name='offset' filepath='block/blk-mq-pci.c' line='27' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='blk_mq_quiesce_queue' mangled-name='blk_mq_quiesce_queue' filepath='include/linux/blk-mq.h' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_quiesce_queue'>
-        <parameter type-id='e7d2a5fc'/>
+      <function-decl name='blk_mq_quiesce_queue' mangled-name='blk_mq_quiesce_queue' filepath='block/blk-mq.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_quiesce_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='224' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='blk_mq_requeue_request' mangled-name='blk_mq_requeue_request' filepath='block/blk-mq.c' line='762' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_requeue_request'>
@@ -112515,8 +107897,8 @@
         <parameter type-id='cc26d15f' name='tagset' filepath='block/blk-mq-tag.c' line='408' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_mq_unfreeze_queue' mangled-name='blk_mq_unfreeze_queue' filepath='include/linux/blk-mq.h' line='524' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_unfreeze_queue'>
-        <parameter type-id='e7d2a5fc'/>
+      <function-decl name='blk_mq_unfreeze_queue' mangled-name='blk_mq_unfreeze_queue' filepath='block/blk-mq.c' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_unfreeze_queue'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='192' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='blk_mq_unique_tag' mangled-name='blk_mq_unique_tag' filepath='block/blk-mq-tag.c' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_mq_unique_tag'>
@@ -112538,10 +107920,10 @@
         <parameter type-id='95e97e5e' name='first_vec' filepath='block/blk-mq-virtio.c' line='25' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='blk_poll' mangled-name='blk_poll' filepath='include/linux/blkdev.h' line='982' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_poll'>
-        <parameter type-id='e7d2a5fc'/>
-        <parameter type-id='041bc907'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='blk_poll' mangled-name='blk_poll' filepath='block/blk-mq.c' line='3963' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_poll'>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-mq.c' line='3963' column='1'/>
+        <parameter type-id='041bc907' name='cookie' filepath='block/blk-mq.c' line='3963' column='1'/>
+        <parameter type-id='b50a4934' name='spin' filepath='block/blk-mq.c' line='3963' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='blk_put_queue' mangled-name='blk_put_queue' filepath='block/blk-core.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_put_queue'>
@@ -112577,9 +107959,9 @@
         <parameter type-id='95e97e5e' name='mask' filepath='block/blk-settings.c' line='732' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_queue_flag_clear' mangled-name='blk_queue_flag_clear' filepath='include/linux/blkdev.h' line='650' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_flag_clear'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='e7d2a5fc'/>
+      <function-decl name='blk_queue_flag_clear' mangled-name='blk_queue_flag_clear' filepath='block/blk-core.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_flag_clear'>
+        <parameter type-id='f0981eeb' name='flag' filepath='block/blk-core.c' line='91' column='1'/>
+        <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='91' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='blk_queue_flag_set' mangled-name='blk_queue_flag_set' filepath='block/blk-core.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_queue_flag_set'>
@@ -112691,8 +108073,8 @@
         <parameter type-id='e7d2a5fc' name='q' filepath='block/blk-core.c' line='342' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blk_status_to_errno' mangled-name='blk_status_to_errno' filepath='include/linux/blkdev.h' line='979' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_status_to_errno'>
-        <parameter type-id='f4e2facd'/>
+      <function-decl name='blk_status_to_errno' mangled-name='blk_status_to_errno' filepath='block/blk-core.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_status_to_errno'>
+        <parameter type-id='f4e2facd' name='status' filepath='block/blk-core.c' line='210' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='blk_sync_queue' mangled-name='blk_sync_queue' filepath='block/blk-core.c' line='298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blk_sync_queue'>
@@ -112710,63 +108092,63 @@
         <parameter type-id='2665334e' name='mode' filepath='block/scsi_ioctl.c' line='200' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='blkdev_get_by_dev' mangled-name='blkdev_get_by_dev' filepath='include/linux/blkdev.h' line='2040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_get_by_dev'>
-        <parameter type-id='8504f260'/>
-        <parameter type-id='2665334e'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='blkdev_get_by_dev' mangled-name='blkdev_get_by_dev' filepath='fs/block_dev.c' line='1725' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_get_by_dev'>
+        <parameter type-id='8504f260' name='dev' filepath='fs/block_dev.c' line='1725' column='1'/>
+        <parameter type-id='2665334e' name='mode' filepath='fs/block_dev.c' line='1725' column='1'/>
+        <parameter type-id='eaa32e2f' name='holder' filepath='fs/block_dev.c' line='1725' column='1'/>
         <return type-id='b88dd945'/>
       </function-decl>
-      <function-decl name='blkdev_get_by_path' mangled-name='blkdev_get_by_path' filepath='include/linux/blkdev.h' line='2038' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_get_by_path'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2665334e'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='blkdev_get_by_path' mangled-name='blkdev_get_by_path' filepath='fs/block_dev.c' line='1680' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_get_by_path'>
+        <parameter type-id='80f4b756' name='path' filepath='fs/block_dev.c' line='1680' column='1'/>
+        <parameter type-id='2665334e' name='mode' filepath='fs/block_dev.c' line='1680' column='1'/>
+        <parameter type-id='eaa32e2f' name='holder' filepath='fs/block_dev.c' line='1681' column='1'/>
         <return type-id='b88dd945'/>
       </function-decl>
-      <function-decl name='blkdev_put' mangled-name='blkdev_put' filepath='include/linux/blkdev.h' line='2045' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_put'>
-        <parameter type-id='b88dd945'/>
-        <parameter type-id='2665334e'/>
+      <function-decl name='blkdev_put' mangled-name='blkdev_put' filepath='fs/block_dev.c' line='1819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blkdev_put'>
+        <parameter type-id='b88dd945' name='bdev' filepath='fs/block_dev.c' line='1819' column='1'/>
+        <parameter type-id='2665334e' name='mode' filepath='fs/block_dev.c' line='1819' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='blocking_notifier_call_chain' mangled-name='blocking_notifier_call_chain' filepath='include/linux/notifier.h' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_call_chain'>
-        <parameter type-id='282b7312'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='blocking_notifier_call_chain' mangled-name='blocking_notifier_call_chain' filepath='kernel/notifier.c' line='325' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_call_chain'>
+        <parameter type-id='282b7312' name='nh' filepath='kernel/notifier.c' line='325' column='1'/>
+        <parameter type-id='7359adad' name='val' filepath='kernel/notifier.c' line='326' column='1'/>
+        <parameter type-id='eaa32e2f' name='v' filepath='kernel/notifier.c' line='326' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='blocking_notifier_chain_register' mangled-name='blocking_notifier_chain_register' filepath='include/linux/notifier.h' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_register'>
-        <parameter type-id='282b7312'/>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='blocking_notifier_chain_register' mangled-name='blocking_notifier_chain_register' filepath='kernel/notifier.c' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_register'>
+        <parameter type-id='282b7312' name='nh' filepath='kernel/notifier.c' line='240' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='241' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='blocking_notifier_chain_unregister' mangled-name='blocking_notifier_chain_unregister' filepath='include/linux/notifier.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_unregister'>
-        <parameter type-id='282b7312'/>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='blocking_notifier_chain_unregister' mangled-name='blocking_notifier_chain_unregister' filepath='kernel/notifier.c' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='blocking_notifier_chain_unregister'>
+        <parameter type-id='282b7312' name='nh' filepath='kernel/notifier.c' line='270' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='271' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bpf_dispatcher_xdp_func' mangled-name='bpf_dispatcher_xdp_func' filepath='include/linux/filter.h' line='747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_dispatcher_xdp_func'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='acada613'/>
-        <parameter type-id='531a7450'/>
+      <function-decl name='bpf_dispatcher_xdp_func' mangled-name='bpf_dispatcher_xdp_func' filepath='net/core/filter.c' line='10291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_dispatcher_xdp_func'>
+        <parameter type-id='eaa32e2f' name='ctx' filepath='net/core/filter.c' line='10291' column='1'/>
+        <parameter type-id='acada613' name='insnsi' filepath='net/core/filter.c' line='10291' column='1'/>
+        <parameter type-id='531a7450' name='bpf_func' filepath='net/core/filter.c' line='10291' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='bpf_prog_add' mangled-name='bpf_prog_add' filepath='kernel/bpf/syscall.c' line='1875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_add'>
-        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1875' column='1'/>
-        <parameter type-id='95e97e5e' name='i' filepath='kernel/bpf/syscall.c' line='1875' column='1'/>
+      <function-decl name='bpf_prog_add' mangled-name='bpf_prog_add' filepath='kernel/bpf/syscall.c' line='1878' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_add'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1878' column='1'/>
+        <parameter type-id='95e97e5e' name='i' filepath='kernel/bpf/syscall.c' line='1878' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_prog_put' mangled-name='bpf_prog_put' filepath='kernel/bpf/syscall.c' line='1777' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_put'>
-        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1777' column='1'/>
+      <function-decl name='bpf_prog_put' mangled-name='bpf_prog_put' filepath='kernel/bpf/syscall.c' line='1780' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_put'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1780' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_prog_sub' mangled-name='bpf_prog_sub' filepath='kernel/bpf/syscall.c' line='1881' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_sub'>
-        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1881' column='1'/>
-        <parameter type-id='95e97e5e' name='i' filepath='kernel/bpf/syscall.c' line='1881' column='1'/>
+      <function-decl name='bpf_prog_sub' mangled-name='bpf_prog_sub' filepath='kernel/bpf/syscall.c' line='1884' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_prog_sub'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/bpf/syscall.c' line='1884' column='1'/>
+        <parameter type-id='95e97e5e' name='i' filepath='kernel/bpf/syscall.c' line='1884' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='bpf_stats_enabled_key' type-id='237c0d27' mangled-name='bpf_stats_enabled_key' visibility='default' filepath='kernel/bpf/core.c' line='2353' column='1' elf-symbol-id='bpf_stats_enabled_key'/>
-      <function-decl name='bpf_trace_run1' mangled-name='bpf_trace_run1' filepath='include/linux/trace_events.h' line='752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run1'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run1' mangled-name='bpf_trace_run1' filepath='kernel/trace/bpf_trace.c' line='2079' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run1'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2079' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2079' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='bpf_trace_run10' mangled-name='bpf_trace_run10' filepath='kernel/trace/bpf_trace.c' line='2088' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run10'>
@@ -112814,67 +108196,67 @@
         <parameter type-id='91ce1af9' name='arg11' filepath='kernel/trace/bpf_trace.c' line='2090' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run2' mangled-name='bpf_trace_run2' filepath='include/linux/trace_events.h' line='753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run2'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run2' mangled-name='bpf_trace_run2' filepath='kernel/trace/bpf_trace.c' line='2080' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run2'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2080' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2080' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2080' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run3' mangled-name='bpf_trace_run3' filepath='include/linux/trace_events.h' line='754' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run3'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run3' mangled-name='bpf_trace_run3' filepath='kernel/trace/bpf_trace.c' line='2081' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run3'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2081' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2081' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2081' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2081' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run4' mangled-name='bpf_trace_run4' filepath='include/linux/trace_events.h' line='756' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run4'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run4' mangled-name='bpf_trace_run4' filepath='kernel/trace/bpf_trace.c' line='2082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run4'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2082' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2082' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2082' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2082' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2082' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run5' mangled-name='bpf_trace_run5' filepath='include/linux/trace_events.h' line='758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run5'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run5' mangled-name='bpf_trace_run5' filepath='kernel/trace/bpf_trace.c' line='2083' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run5'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2083' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2083' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2083' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2083' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2083' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2083' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run6' mangled-name='bpf_trace_run6' filepath='include/linux/trace_events.h' line='760' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run6'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run6' mangled-name='bpf_trace_run6' filepath='kernel/trace/bpf_trace.c' line='2084' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run6'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2084' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run7' mangled-name='bpf_trace_run7' filepath='include/linux/trace_events.h' line='762' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run7'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run7' mangled-name='bpf_trace_run7' filepath='kernel/trace/bpf_trace.c' line='2085' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run7'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
+        <parameter type-id='91ce1af9' name='arg6' filepath='kernel/trace/bpf_trace.c' line='2085' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_trace_run8' mangled-name='bpf_trace_run8' filepath='include/linux/trace_events.h' line='764' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run8'>
-        <parameter type-id='bdcee7ae'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='bpf_trace_run8' mangled-name='bpf_trace_run8' filepath='kernel/trace/bpf_trace.c' line='2086' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run8'>
+        <parameter type-id='bdcee7ae' name='prog' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg0' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg1' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg2' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg3' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg4' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg5' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg6' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
+        <parameter type-id='91ce1af9' name='arg7' filepath='kernel/trace/bpf_trace.c' line='2086' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='bpf_trace_run9' mangled-name='bpf_trace_run9' filepath='kernel/trace/bpf_trace.c' line='2087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_trace_run9'>
@@ -112890,26 +108272,26 @@
         <parameter type-id='91ce1af9' name='arg8' filepath='kernel/trace/bpf_trace.c' line='2087' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bpf_warn_invalid_xdp_action' mangled-name='bpf_warn_invalid_xdp_action' filepath='include/linux/filter.h' line='980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_warn_invalid_xdp_action'>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='bpf_warn_invalid_xdp_action' mangled-name='bpf_warn_invalid_xdp_action' filepath='net/core/filter.c' line='7905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bpf_warn_invalid_xdp_action'>
+        <parameter type-id='19c2251e' name='act' filepath='net/core/filter.c' line='7905' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bt_err' mangled-name='bt_err' filepath='include/net/bluetooth/bluetooth.h' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_err'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='bt_err' mangled-name='bt_err' filepath='net/bluetooth/lib.c' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_err'>
+        <parameter type-id='80f4b756' name='format' filepath='net/bluetooth/lib.c' line='170' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bt_info' mangled-name='bt_info' filepath='include/net/bluetooth/bluetooth.h' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_info'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='bt_info' mangled-name='bt_info' filepath='net/bluetooth/lib.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_info'>
+        <parameter type-id='80f4b756' name='format' filepath='net/bluetooth/lib.c' line='138' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='bt_to_errno' mangled-name='bt_to_errno' filepath='include/net/bluetooth/bluetooth.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_to_errno'>
-        <parameter type-id='1dc6a898'/>
+      <function-decl name='bt_to_errno' mangled-name='bt_to_errno' filepath='net/bluetooth/lib.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_to_errno'>
+        <parameter type-id='d315442e' name='code' filepath='net/bluetooth/lib.c' line='45' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bt_warn' mangled-name='bt_warn' filepath='include/net/bluetooth/bluetooth.h' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_warn'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='bt_warn' mangled-name='bt_warn' filepath='net/bluetooth/lib.c' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bt_warn'>
+        <parameter type-id='80f4b756' name='format' filepath='net/bluetooth/lib.c' line='154' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
@@ -112926,23 +108308,23 @@
         <parameter type-id='9ad862e7' name='hdev' filepath='drivers/bluetooth/btbcm.c' line='554' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='build_skb' mangled-name='build_skb' filepath='include/linux/skbuff.h' line='1087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='build_skb'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='build_skb' mangled-name='build_skb' filepath='net/core/skbuff.c' line='331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='build_skb'>
+        <parameter type-id='eaa32e2f' name='data' filepath='net/core/skbuff.c' line='331' column='1'/>
+        <parameter type-id='f0981eeb' name='frag_size' filepath='net/core/skbuff.c' line='331' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='bus_find_device' mangled-name='bus_find_device' filepath='include/linux/device/bus.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_find_device'>
-        <parameter type-id='5e2671f8'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='92d15ae9'/>
+      <function-decl name='bus_find_device' mangled-name='bus_find_device' filepath='drivers/base/bus.c' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_find_device'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='326' column='1'/>
+        <parameter type-id='fa0b179b' name='start' filepath='drivers/base/bus.c' line='327' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/bus.c' line='327' column='1'/>
+        <parameter type-id='92d15ae9' name='match' filepath='drivers/base/bus.c' line='328' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='bus_for_each_dev' mangled-name='bus_for_each_dev' filepath='include/linux/device/bus.h' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_for_each_dev'>
-        <parameter type-id='5e2671f8'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='92d15ae9'/>
+      <function-decl name='bus_for_each_dev' mangled-name='bus_for_each_dev' filepath='drivers/base/bus.c' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_for_each_dev'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='292' column='1'/>
+        <parameter type-id='fa0b179b' name='start' filepath='drivers/base/bus.c' line='292' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/bus.c' line='293' column='1'/>
+        <parameter type-id='92d15ae9' name='fn' filepath='drivers/base/bus.c' line='293' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='bus_for_each_drv' mangled-name='bus_for_each_drv' filepath='drivers/base/bus.c' line='418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_for_each_drv'>
@@ -112952,8 +108334,8 @@
         <parameter type-id='24a62f42' name='fn' filepath='drivers/base/bus.c' line='419' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bus_register' mangled-name='bus_register' filepath='include/linux/device/bus.h' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_register'>
-        <parameter type-id='5e2671f8'/>
+      <function-decl name='bus_register' mangled-name='bus_register' filepath='drivers/base/bus.c' line='802' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_register'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='802' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='bus_register_notifier' mangled-name='bus_register_notifier' filepath='drivers/base/bus.c' line='901' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_register_notifier'>
@@ -112966,8 +108348,8 @@
         <parameter type-id='f1ac64d0' name='ops' filepath='drivers/iommu/iommu.c' line='1840' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='bus_unregister' mangled-name='bus_unregister' filepath='include/linux/device/bus.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_unregister'>
-        <parameter type-id='5e2671f8'/>
+      <function-decl name='bus_unregister' mangled-name='bus_unregister' filepath='drivers/base/bus.c' line='887' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_unregister'>
+        <parameter type-id='5e2671f8' name='bus' filepath='drivers/base/bus.c' line='887' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='bus_unregister_notifier' mangled-name='bus_unregister_notifier' filepath='drivers/base/bus.c' line='907' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='bus_unregister_notifier'>
@@ -113016,8 +108398,8 @@
         <parameter type-id='83c1bde6' name='work' filepath='kernel/workqueue.c' line='3196' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='capable' mangled-name='capable' filepath='include/linux/capability.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='capable'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='capable' mangled-name='capable' filepath='kernel/capability.c' line='447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='capable'>
+        <parameter type-id='95e97e5e' name='cap' filepath='kernel/capability.c' line='447' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='cdev_add' mangled-name='cdev_add' filepath='fs/char_dev.c' line='479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_add'>
@@ -113033,19 +108415,19 @@
         <parameter type-id='3e6eb939' name='p' filepath='fs/char_dev.c' line='594' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cdev_device_add' mangled-name='cdev_device_add' filepath='include/linux/cdev.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_device_add'>
-        <parameter type-id='3e6eb939'/>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='cdev_device_add' mangled-name='cdev_device_add' filepath='fs/char_dev.c' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_device_add'>
+        <parameter type-id='3e6eb939' name='cdev' filepath='fs/char_dev.c' line='537' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='fs/char_dev.c' line='537' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cdev_device_del' mangled-name='cdev_device_del' filepath='include/linux/cdev.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_device_del'>
-        <parameter type-id='3e6eb939'/>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='cdev_device_del' mangled-name='cdev_device_del' filepath='fs/char_dev.c' line='571' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_device_del'>
+        <parameter type-id='3e6eb939' name='cdev' filepath='fs/char_dev.c' line='571' column='1'/>
+        <parameter type-id='fa0b179b' name='dev' filepath='fs/char_dev.c' line='571' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cdev_init' mangled-name='cdev_init' filepath='include/linux/cdev.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_init'>
-        <parameter type-id='3e6eb939'/>
-        <parameter type-id='61758ee5'/>
+      <function-decl name='cdev_init' mangled-name='cdev_init' filepath='fs/char_dev.c' line='651' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cdev_init'>
+        <parameter type-id='3e6eb939' name='cdev' filepath='fs/char_dev.c' line='651' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='fs/char_dev.c' line='651' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cec_allocate_adapter' mangled-name='cec_allocate_adapter' filepath='drivers/media/cec/core/cec-core.c' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cec_allocate_adapter'>
@@ -113117,10 +108499,10 @@
         <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='17114' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_chandef_create' mangled-name='cfg80211_chandef_create' filepath='include/net/cfg80211.h' line='791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_chandef_create'>
-        <parameter type-id='0953fbfe'/>
-        <parameter type-id='ec00acfb'/>
-        <parameter type-id='9e446de7'/>
+      <function-decl name='cfg80211_chandef_create' mangled-name='cfg80211_chandef_create' filepath='net/wireless/chan.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_chandef_create'>
+        <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/chan.c' line='23' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/chan.c' line='24' column='1'/>
+        <parameter type-id='9e446de7' name='chan_type' filepath='net/wireless/chan.c' line='25' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_connect_done' mangled-name='cfg80211_connect_done' filepath='net/wireless/sme.c' line='789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_connect_done'>
@@ -113151,13 +108533,13 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17740' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cfg80211_find_elem_match' mangled-name='cfg80211_find_elem_match' filepath='include/net/cfg80211.h' line='5753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_elem_match'>
-        <parameter type-id='f9b06939'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cfg80211_find_elem_match' mangled-name='cfg80211_find_elem_match' filepath='net/wireless/scan.c' line='1216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_elem_match'>
+        <parameter type-id='f9b06939' name='eid' filepath='net/wireless/scan.c' line='1216' column='1'/>
+        <parameter type-id='bbaf3419' name='ies' filepath='net/wireless/scan.c' line='1216' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/wireless/scan.c' line='1216' column='1'/>
+        <parameter type-id='bbaf3419' name='match' filepath='net/wireless/scan.c' line='1217' column='1'/>
+        <parameter type-id='f0981eeb' name='match_len' filepath='net/wireless/scan.c' line='1217' column='1'/>
+        <parameter type-id='f0981eeb' name='match_offset' filepath='net/wireless/scan.c' line='1218' column='1'/>
         <return type-id='aa7ca86a'/>
       </function-decl>
       <function-decl name='cfg80211_find_vendor_elem' mangled-name='cfg80211_find_vendor_elem' filepath='net/wireless/scan.c' line='1232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_vendor_elem'>
@@ -113251,9 +108633,9 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1049' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_put_bss' mangled-name='cfg80211_put_bss' filepath='include/net/cfg80211.h' line='6341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_put_bss'>
-        <parameter type-id='666fb412'/>
-        <parameter type-id='bda81d86'/>
+      <function-decl name='cfg80211_put_bss' mangled-name='cfg80211_put_bss' filepath='net/wireless/scan.c' line='2491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_put_bss'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/scan.c' line='2491' column='1'/>
+        <parameter type-id='bda81d86' name='pub' filepath='net/wireless/scan.c' line='2491' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='16421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
@@ -113345,63 +108727,63 @@
         <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='13816' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='class_destroy' mangled-name='class_destroy' filepath='include/linux/device/class.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_destroy'>
-        <parameter type-id='67aca04f'/>
+      <function-decl name='class_destroy' mangled-name='class_destroy' filepath='drivers/base/class.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_destroy'>
+        <parameter type-id='67aca04f' name='cls' filepath='drivers/base/class.c' line='261' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='class_interface_unregister' mangled-name='class_interface_unregister' filepath='include/linux/device/class.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_interface_unregister'>
-        <parameter type-id='ec167ceb'/>
+      <function-decl name='class_interface_unregister' mangled-name='class_interface_unregister' filepath='drivers/base/class.c' line='453' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_interface_unregister'>
+        <parameter type-id='ec167ceb' name='class_intf' filepath='drivers/base/class.c' line='453' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='class_unregister' mangled-name='class_unregister' filepath='include/linux/device/class.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_unregister'>
-        <parameter type-id='67aca04f'/>
+      <function-decl name='class_unregister' mangled-name='class_unregister' filepath='drivers/base/class.c' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_unregister'>
+        <parameter type-id='67aca04f' name='cls' filepath='drivers/base/class.c' line='199' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cleanup_srcu_struct' mangled-name='cleanup_srcu_struct' filepath='include/linux/srcu.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cleanup_srcu_struct'>
-        <parameter type-id='f7d7131a'/>
+      <function-decl name='cleanup_srcu_struct' mangled-name='cleanup_srcu_struct' filepath='kernel/rcu/srcutree.c' line='373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cleanup_srcu_struct'>
+        <parameter type-id='f7d7131a' name='ssp' filepath='kernel/rcu/srcutree.c' line='373' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='clk_bulk_disable' mangled-name='clk_bulk_disable' filepath='include/linux/clk.h' line='555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_disable'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f034b024'/>
+      <function-decl name='clk_bulk_disable' mangled-name='clk_bulk_disable' filepath='drivers/clk/clk-bulk.c' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_disable'>
+        <parameter type-id='95e97e5e' name='num_clks' filepath='drivers/clk/clk-bulk.c' line='211' column='1'/>
+        <parameter type-id='f034b024' name='clks' filepath='drivers/clk/clk-bulk.c' line='211' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='clk_bulk_enable' mangled-name='clk_bulk_enable' filepath='include/linux/clk.h' line='520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_enable'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f034b024'/>
+      <function-decl name='clk_bulk_enable' mangled-name='clk_bulk_enable' filepath='drivers/clk/clk-bulk.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_enable'>
+        <parameter type-id='95e97e5e' name='num_clks' filepath='drivers/clk/clk-bulk.c' line='227' column='1'/>
+        <parameter type-id='f034b024' name='clks' filepath='drivers/clk/clk-bulk.c' line='227' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='clk_bulk_prepare' mangled-name='clk_bulk_prepare' filepath='include/linux/clk.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_prepare'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f034b024'/>
+      <function-decl name='clk_bulk_prepare' mangled-name='clk_bulk_prepare' filepath='drivers/clk/clk-bulk.c' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_prepare'>
+        <parameter type-id='95e97e5e' name='num_clks' filepath='drivers/clk/clk-bulk.c' line='176' column='1'/>
+        <parameter type-id='f034b024' name='clks' filepath='drivers/clk/clk-bulk.c' line='177' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='clk_bulk_unprepare' mangled-name='clk_bulk_unprepare' filepath='include/linux/clk.h' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_unprepare'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f034b024'/>
+      <function-decl name='clk_bulk_unprepare' mangled-name='clk_bulk_unprepare' filepath='drivers/clk/clk-bulk.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_bulk_unprepare'>
+        <parameter type-id='95e97e5e' name='num_clks' filepath='drivers/clk/clk-bulk.c' line='161' column='1'/>
+        <parameter type-id='f034b024' name='clks' filepath='drivers/clk/clk-bulk.c' line='161' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='clk_disable' mangled-name='clk_disable' filepath='include/linux/clk.h' line='537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_disable'>
-        <parameter type-id='7d0bc0eb'/>
+      <function-decl name='clk_disable' mangled-name='clk_disable' filepath='drivers/clk/clk.c' line='995' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_disable'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='995' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='clk_enable' mangled-name='clk_enable' filepath='include/linux/clk.h' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_enable'>
-        <parameter type-id='7d0bc0eb'/>
+      <function-decl name='clk_enable' mangled-name='clk_enable' filepath='drivers/clk/clk.c' line='1160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_enable'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='1160' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='clk_fixed_factor_ops' type-id='92072f8b' mangled-name='clk_fixed_factor_ops' visibility='default' filepath='drivers/clk/clk-fixed-factor.c' line='60' column='1' elf-symbol-id='clk_fixed_factor_ops'/>
       <var-decl name='clk_fixed_rate_ops' type-id='92072f8b' mangled-name='clk_fixed_rate_ops' visibility='default' filepath='drivers/clk/clk-fixed-rate.c' line='46' column='1' elf-symbol-id='clk_fixed_rate_ops'/>
-      <function-decl name='clk_get' mangled-name='clk_get' filepath='include/linux/clk.h' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='clk_get' mangled-name='clk_get' filepath='drivers/clk/clkdev.c' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clkdev.c' line='100' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/clk/clkdev.c' line='100' column='1'/>
         <return type-id='7d0bc0eb'/>
       </function-decl>
       <function-decl name='clk_get_parent' mangled-name='clk_get_parent' filepath='drivers/clk/clk.c' line='2489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get_parent'>
         <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='2489' column='1'/>
         <return type-id='7d0bc0eb'/>
       </function-decl>
-      <function-decl name='clk_get_rate' mangled-name='clk_get_rate' filepath='include/linux/clk.h' line='562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get_rate'>
-        <parameter type-id='7d0bc0eb'/>
+      <function-decl name='clk_get_rate' mangled-name='clk_get_rate' filepath='drivers/clk/clk.c' line='1673' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_get_rate'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='1673' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='clk_hw_get_flags' mangled-name='clk_hw_get_flags' filepath='drivers/clk/clk.c' line='505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_hw_get_flags'>
@@ -113488,8 +108870,8 @@
         <parameter type-id='d504f73d' name='nb' filepath='drivers/clk/clk.c' line='4453' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='clk_prepare' mangled-name='clk_prepare' filepath='include/linux/clk.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_prepare'>
-        <parameter type-id='7d0bc0eb'/>
+      <function-decl name='clk_prepare' mangled-name='clk_prepare' filepath='drivers/clk/clk.c' line='938' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_prepare'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='938' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='clk_put' mangled-name='clk_put' filepath='drivers/clk/clkdev.c' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_put'>
@@ -113545,28 +108927,28 @@
         <parameter type-id='7d0bc0eb' name='parent' filepath='drivers/clk/clk.c' line='2653' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='clk_set_rate' mangled-name='clk_set_rate' filepath='include/linux/clk.h' line='653' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_set_rate'>
-        <parameter type-id='7d0bc0eb'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='clk_set_rate' mangled-name='clk_set_rate' filepath='drivers/clk/clk.c' line='2309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_set_rate'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='2309' column='1'/>
+        <parameter type-id='7359adad' name='rate' filepath='drivers/clk/clk.c' line='2309' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='clk_sync_state' mangled-name='clk_sync_state' filepath='drivers/clk/clk.c' line='1327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_sync_state'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk.c' line='1327' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='clk_unprepare' mangled-name='clk_unprepare' filepath='include/linux/clk.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_unprepare'>
-        <parameter type-id='7d0bc0eb'/>
+      <function-decl name='clk_unprepare' mangled-name='clk_unprepare' filepath='drivers/clk/clk.c' line='857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_unprepare'>
+        <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='857' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='clk_unregister' mangled-name='clk_unregister' filepath='drivers/clk/clk.c' line='4113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clk_unregister'>
         <parameter type-id='7d0bc0eb' name='clk' filepath='drivers/clk/clk.c' line='4113' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='clockevents_config_and_register' mangled-name='clockevents_config_and_register' filepath='include/linux/clockchips.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clockevents_config_and_register'>
-        <parameter type-id='aff725d5'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='clockevents_config_and_register' mangled-name='clockevents_config_and_register' filepath='kernel/time/clockevents.c' line='505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clockevents_config_and_register'>
+        <parameter type-id='aff725d5' name='dev' filepath='kernel/time/clockevents.c' line='505' column='1'/>
+        <parameter type-id='19c2251e' name='freq' filepath='kernel/time/clockevents.c' line='506' column='1'/>
+        <parameter type-id='7359adad' name='min_delta' filepath='kernel/time/clockevents.c' line='506' column='1'/>
+        <parameter type-id='7359adad' name='max_delta' filepath='kernel/time/clockevents.c' line='507' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='clocks_calc_mult_shift' mangled-name='clocks_calc_mult_shift' filepath='kernel/time/clocksource.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='clocks_calc_mult_shift'>
@@ -113581,11 +108963,11 @@
         <parameter type-id='68a2d05b' name='dev' filepath='drivers/net/can/dev/dev.c' line='902' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cma_alloc' mangled-name='cma_alloc' filepath='include/linux/cma.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_alloc'>
-        <parameter type-id='6f67b38a'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='cma_alloc' mangled-name='cma_alloc' filepath='mm/cma.c' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_alloc'>
+        <parameter type-id='6f67b38a' name='cma' filepath='mm/cma.c' line='434' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='mm/cma.c' line='434' column='1'/>
+        <parameter type-id='f0981eeb' name='align' filepath='mm/cma.c' line='434' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/cma.c' line='435' column='1'/>
         <return type-id='02f11ed4'/>
       </function-decl>
       <function-decl name='cma_for_each_area' mangled-name='cma_for_each_area' filepath='mm/cma.c' line='618' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_for_each_area'>
@@ -113601,10 +108983,10 @@
         <parameter type-id='4605de5b' name='cma' filepath='mm/cma.c' line='53' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='cma_release' mangled-name='cma_release' filepath='include/linux/cma.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_release'>
-        <parameter type-id='6f67b38a'/>
-        <parameter type-id='b72f2447'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cma_release' mangled-name='cma_release' filepath='mm/cma.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cma_release'>
+        <parameter type-id='6f67b38a' name='cma' filepath='mm/cma.c' line='594' column='1'/>
+        <parameter type-id='b72f2447' name='pages' filepath='mm/cma.c' line='594' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/cma.c' line='594' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='compat_alloc_user_space' mangled-name='compat_alloc_user_space' filepath='kernel/compat.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_alloc_user_space'>
@@ -113624,8 +109006,8 @@
         <parameter type-id='7359adad' name='arg' filepath='fs/ioctl.c' line='784' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='complete' mangled-name='complete' filepath='include/linux/completion.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete'>
-        <parameter type-id='389faaf7'/>
+      <function-decl name='complete' mangled-name='complete' filepath='kernel/sched/completion.c' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='28' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='complete_all' mangled-name='complete_all' filepath='kernel/sched/completion.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete_all'>
@@ -113656,10 +109038,10 @@
         <parameter type-id='14f24806' name='ops' filepath='drivers/base/component.c' line='757' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='component_master_add_with_match' mangled-name='component_master_add_with_match' filepath='include/linux/component.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_master_add_with_match'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='27729729'/>
-        <parameter type-id='7d9421ac'/>
+      <function-decl name='component_master_add_with_match' mangled-name='component_master_add_with_match' filepath='drivers/base/component.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_master_add_with_match'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/component.c' line='467' column='1'/>
+        <parameter type-id='27729729' name='ops' filepath='drivers/base/component.c' line='468' column='1'/>
+        <parameter type-id='7d9421ac' name='match' filepath='drivers/base/component.c' line='469' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='component_master_del' mangled-name='component_master_del' filepath='drivers/base/component.c' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='component_master_del'>
@@ -113686,14 +109068,14 @@
         <parameter type-id='63a08bf7' name='_ep' filepath='drivers/usb/gadget/composite.c' line='281' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='config_group_init' mangled-name='config_group_init' filepath='include/linux/configfs.h' line='87' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_group_init'>
-        <parameter type-id='97aff453'/>
+      <function-decl name='config_group_init' mangled-name='config_group_init' filepath='fs/configfs/item.c' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_group_init'>
+        <parameter type-id='97aff453' name='group' filepath='fs/configfs/item.c' line='159' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='config_group_init_type_name' mangled-name='config_group_init_type_name' filepath='include/linux/configfs.h' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_group_init_type_name'>
-        <parameter type-id='97aff453'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='596e8e55'/>
+      <function-decl name='config_group_init_type_name' mangled-name='config_group_init_type_name' filepath='fs/configfs/item.c' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_group_init_type_name'>
+        <parameter type-id='97aff453' name='group' filepath='fs/configfs/item.c' line='94' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/configfs/item.c' line='94' column='1'/>
+        <parameter type-id='596e8e55' name='type' filepath='fs/configfs/item.c' line='95' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='config_item_init_type_name' mangled-name='config_item_init_type_name' filepath='fs/configfs/item.c' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_item_init_type_name'>
@@ -113702,16 +109084,16 @@
         <parameter type-id='596e8e55' name='type' filepath='fs/configfs/item.c' line='86' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='config_item_put' mangled-name='config_item_put' filepath='include/linux/configfs.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_item_put'>
-        <parameter type-id='7a29ff27'/>
+      <function-decl name='config_item_put' mangled-name='config_item_put' filepath='fs/configfs/item.c' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='config_item_put'>
+        <parameter type-id='7a29ff27' name='item' filepath='fs/configfs/item.c' line='148' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='configfs_register_subsystem' mangled-name='configfs_register_subsystem' filepath='fs/configfs/dir.c' line='1879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='configfs_register_subsystem'>
-        <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1879' column='1'/>
+      <function-decl name='configfs_register_subsystem' mangled-name='configfs_register_subsystem' filepath='fs/configfs/dir.c' line='1887' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='configfs_register_subsystem'>
+        <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1887' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='configfs_unregister_subsystem' mangled-name='configfs_unregister_subsystem' filepath='fs/configfs/dir.c' line='1935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='configfs_unregister_subsystem'>
-        <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1935' column='1'/>
+      <function-decl name='configfs_unregister_subsystem' mangled-name='configfs_unregister_subsystem' filepath='fs/configfs/dir.c' line='1947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='configfs_unregister_subsystem'>
+        <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1947' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='console_suspend_enabled' type-id='b50a4934' mangled-name='console_suspend_enabled' visibility='default' filepath='kernel/printk/printk.c' line='2287' column='1' elf-symbol-id='console_suspend_enabled'/>
@@ -113721,15 +109103,15 @@
       <function-decl name='console_unlock' mangled-name='console_unlock' filepath='kernel/printk/printk.c' line='2440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='console_unlock'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='consume_skb' mangled-name='consume_skb' filepath='include/linux/skbuff.h' line='1068' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='consume_skb'>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='consume_skb' mangled-name='consume_skb' filepath='net/core/skbuff.c' line='845' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='consume_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='845' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='contig_page_data' type-id='54406315' mangled-name='contig_page_data' visibility='default' filepath='mm/memblock.c' line='96' column='1' elf-symbol-id='contig_page_data'/>
       <var-decl name='cpu_all_bits' type-id='afe549fd' mangled-name='cpu_all_bits' visibility='default' filepath='kernel/cpu.c' line='2755' column='1' elf-symbol-id='cpu_all_bits'/>
       <var-decl name='cpu_bit_bitmap' type-id='f959706c' mangled-name='cpu_bit_bitmap' visibility='default' filepath='kernel/cpu.c' line='2744' column='1' elf-symbol-id='cpu_bit_bitmap'/>
-      <function-decl name='cpu_have_feature' mangled-name='cpu_have_feature' filepath='arch/arm64/include/asm/cpufeature.h' line='433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_have_feature'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpu_have_feature' mangled-name='cpu_have_feature' filepath='arch/arm64/kernel/cpufeature.c' line='2853' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_have_feature'>
+        <parameter type-id='f0981eeb' name='num' filepath='arch/arm64/kernel/cpufeature.c' line='2853' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <var-decl name='cpu_hwcap_keys' type-id='cee5a038' mangled-name='cpu_hwcap_keys' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='150' column='1' elf-symbol-id='cpu_hwcap_keys'/>
@@ -113766,8 +109148,8 @@
         <parameter type-id='2cd87b91' name='func' filepath='kernel/sched/cpufreq.c' line='34' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cpufreq_cpu_get' mangled-name='cpufreq_cpu_get' filepath='include/linux/cpufreq.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_cpu_get'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpufreq_cpu_get' mangled-name='cpufreq_cpu_get' filepath='drivers/cpufreq/cpufreq.c' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_cpu_get'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='220' column='1'/>
         <return type-id='343c3ae4'/>
       </function-decl>
       <function-decl name='cpufreq_cpu_get_raw' mangled-name='cpufreq_cpu_get_raw' filepath='drivers/cpufreq/cpufreq.c' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_cpu_get_raw'>
@@ -113778,18 +109160,18 @@
         <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='248' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cpufreq_disable_fast_switch' mangled-name='cpufreq_disable_fast_switch' filepath='include/linux/cpufreq.h' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_disable_fast_switch'>
-        <parameter type-id='343c3ae4'/>
+      <function-decl name='cpufreq_disable_fast_switch' mangled-name='cpufreq_disable_fast_switch' filepath='drivers/cpufreq/cpufreq.c' line='520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_disable_fast_switch'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='520' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cpufreq_driver_fast_switch' mangled-name='cpufreq_driver_fast_switch' filepath='include/linux/cpufreq.h' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_fast_switch'>
-        <parameter type-id='343c3ae4'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpufreq_driver_fast_switch' mangled-name='cpufreq_driver_fast_switch' filepath='drivers/cpufreq/cpufreq.c' line='2094' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_fast_switch'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='2094' column='1'/>
+        <parameter type-id='f0981eeb' name='target_freq' filepath='drivers/cpufreq/cpufreq.c' line='2095' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='cpufreq_driver_resolve_freq' mangled-name='cpufreq_driver_resolve_freq' filepath='include/linux/cpufreq.h' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_resolve_freq'>
-        <parameter type-id='343c3ae4'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpufreq_driver_resolve_freq' mangled-name='cpufreq_driver_resolve_freq' filepath='drivers/cpufreq/cpufreq.c' line='543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_resolve_freq'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='543' column='1'/>
+        <parameter type-id='f0981eeb' name='target_freq' filepath='drivers/cpufreq/cpufreq.c' line='544' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
       <function-decl name='cpufreq_driver_target' mangled-name='cpufreq_driver_target' filepath='drivers/cpufreq/cpufreq.c' line='2248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_driver_target'>
@@ -113801,8 +109183,8 @@
       <function-decl name='cpufreq_enable_boost_support' mangled-name='cpufreq_enable_boost_support' filepath='drivers/cpufreq/cpufreq.c' line='2687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_enable_boost_support'>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpufreq_enable_fast_switch' mangled-name='cpufreq_enable_fast_switch' filepath='include/linux/cpufreq.h' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_enable_fast_switch'>
-        <parameter type-id='343c3ae4'/>
+      <function-decl name='cpufreq_enable_fast_switch' mangled-name='cpufreq_enable_fast_switch' filepath='drivers/cpufreq/cpufreq.c' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_enable_fast_switch'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='496' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='cpufreq_freq_attr_scaling_available_freqs' type-id='9f2d4ea3' mangled-name='cpufreq_freq_attr_scaling_available_freqs' visibility='default' filepath='drivers/cpufreq/freq_table.c' line='280' column='1' elf-symbol-id='cpufreq_freq_attr_scaling_available_freqs'/>
@@ -113848,12 +109230,12 @@
         <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='2440' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpufreq_policy_transition_delay_us' mangled-name='cpufreq_policy_transition_delay_us' filepath='include/linux/cpufreq.h' line='604' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_policy_transition_delay_us'>
-        <parameter type-id='343c3ae4'/>
+      <function-decl name='cpufreq_policy_transition_delay_us' mangled-name='cpufreq_policy_transition_delay_us' filepath='drivers/cpufreq/cpufreq.c' line='568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_policy_transition_delay_us'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='568' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='cpufreq_quick_get' mangled-name='cpufreq_quick_get' filepath='include/linux/cpufreq.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_quick_get'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpufreq_quick_get' mangled-name='cpufreq_quick_get' filepath='drivers/cpufreq/cpufreq.c' line='1726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_quick_get'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='1726' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
       <function-decl name='cpufreq_quick_get_max' mangled-name='cpufreq_quick_get_max' filepath='drivers/cpufreq/cpufreq.c' line='1758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_quick_get_max'>
@@ -113864,23 +109246,23 @@
         <parameter type-id='eb90c228' name='driver_data' filepath='drivers/cpufreq/cpufreq.c' line='2737' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpufreq_register_governor' mangled-name='cpufreq_register_governor' filepath='include/linux/cpufreq.h' line='605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_governor'>
-        <parameter type-id='6925355c'/>
+      <function-decl name='cpufreq_register_governor' mangled-name='cpufreq_register_governor' filepath='drivers/cpufreq/cpufreq.c' line='2377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_governor'>
+        <parameter type-id='6925355c' name='governor' filepath='drivers/cpufreq/cpufreq.c' line='2377' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpufreq_register_notifier' mangled-name='cpufreq_register_notifier' filepath='include/linux/cpufreq.h' line='501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_notifier'>
-        <parameter type-id='d504f73d'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpufreq_register_notifier' mangled-name='cpufreq_register_notifier' filepath='drivers/cpufreq/cpufreq.c' line='1992' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_register_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/cpufreq/cpufreq.c' line='1992' column='1'/>
+        <parameter type-id='f0981eeb' name='list' filepath='drivers/cpufreq/cpufreq.c' line='1992' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='cpufreq_remove_update_util_hook' mangled-name='cpufreq_remove_update_util_hook' filepath='kernel/sched/cpufreq.c' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_remove_update_util_hook'>
         <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/cpufreq.c' line='58' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cpufreq_table_index_unsorted' mangled-name='cpufreq_table_index_unsorted' filepath='include/linux/cpufreq.h' line='751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_table_index_unsorted'>
-        <parameter type-id='343c3ae4'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpufreq_table_index_unsorted' mangled-name='cpufreq_table_index_unsorted' filepath='drivers/cpufreq/freq_table.c' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_table_index_unsorted'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/freq_table.c' line='120' column='1'/>
+        <parameter type-id='f0981eeb' name='target_freq' filepath='drivers/cpufreq/freq_table.c' line='121' column='1'/>
+        <parameter type-id='f0981eeb' name='relation' filepath='drivers/cpufreq/freq_table.c' line='122' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='cpufreq_this_cpu_can_update' mangled-name='cpufreq_this_cpu_can_update' filepath='kernel/sched/cpufreq.c' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpufreq_this_cpu_can_update'>
@@ -113902,40 +109284,40 @@
       <function-decl name='cpuidle_resume_and_unlock' mangled-name='cpuidle_resume_and_unlock' filepath='drivers/cpuidle/cpuidle.c' line='458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpuidle_resume_and_unlock'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cpumask_any_but' mangled-name='cpumask_any_but' filepath='include/linux/cpumask.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_any_but'>
-        <parameter type-id='5f8a1ac4'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='cpumask_any_but' mangled-name='cpumask_any_but' filepath='lib/cpumask.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_any_but'>
+        <parameter type-id='5f8a1ac4' name='mask' filepath='lib/cpumask.c' line='53' column='1'/>
+        <parameter type-id='f0981eeb' name='cpu' filepath='lib/cpumask.c' line='53' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpumask_next' mangled-name='cpumask_next' filepath='include/linux/cpumask.h' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='5f8a1ac4'/>
+      <function-decl name='cpumask_next' mangled-name='cpumask_next' filepath='lib/cpumask.c' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next'>
+        <parameter type-id='95e97e5e' name='n' filepath='lib/cpumask.c' line='17' column='1'/>
+        <parameter type-id='5f8a1ac4' name='srcp' filepath='lib/cpumask.c' line='17' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='cpumask_next_and' mangled-name='cpumask_next_and' filepath='include/linux/cpumask.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next_and'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='5f8a1ac4'/>
-        <parameter type-id='5f8a1ac4'/>
+      <function-decl name='cpumask_next_and' mangled-name='cpumask_next_and' filepath='lib/cpumask.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next_and'>
+        <parameter type-id='95e97e5e' name='n' filepath='lib/cpumask.c' line='34' column='1'/>
+        <parameter type-id='5f8a1ac4' name='src1p' filepath='lib/cpumask.c' line='34' column='1'/>
+        <parameter type-id='5f8a1ac4' name='src2p' filepath='lib/cpumask.c' line='35' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpumask_next_wrap' mangled-name='cpumask_next_wrap' filepath='include/linux/cpumask.h' line='280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next_wrap'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='5f8a1ac4'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='cpumask_next_wrap' mangled-name='cpumask_next_wrap' filepath='lib/cpumask.c' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpumask_next_wrap'>
+        <parameter type-id='95e97e5e' name='n' filepath='lib/cpumask.c' line='77' column='1'/>
+        <parameter type-id='5f8a1ac4' name='mask' filepath='lib/cpumask.c' line='77' column='1'/>
+        <parameter type-id='95e97e5e' name='start' filepath='lib/cpumask.c' line='77' column='1'/>
+        <parameter type-id='b50a4934' name='wrap' filepath='lib/cpumask.c' line='77' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpupri_find_fitness' mangled-name='cpupri_find_fitness' filepath='kernel/sched/cpupri.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpupri_find_fitness'>
-        <parameter type-id='15c7dfa4'/>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='74bccedd'/>
-        <parameter type-id='cf77d29f'/>
+      <function-decl name='cpupri_find_fitness' mangled-name='cpupri_find_fitness' filepath='kernel/sched/cpupri.c' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpupri_find_fitness'>
+        <parameter type-id='15c7dfa4' name='cp' filepath='kernel/sched/cpupri.c' line='147' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/cpupri.c' line='147' column='1'/>
+        <parameter type-id='74bccedd' name='lowest_mask' filepath='kernel/sched/cpupri.c' line='148' column='1'/>
+        <parameter type-id='cf77d29f' name='fitness_fn' filepath='kernel/sched/cpupri.c' line='149' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='cpus_read_lock' mangled-name='cpus_read_lock' filepath='include/linux/cpu.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpus_read_lock'>
+      <function-decl name='cpus_read_lock' mangled-name='cpus_read_lock' filepath='kernel/cpu.c' line='300' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpus_read_lock'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cpus_read_unlock' mangled-name='cpus_read_unlock' filepath='include/linux/cpu.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpus_read_unlock'>
+      <function-decl name='cpus_read_unlock' mangled-name='cpus_read_unlock' filepath='kernel/cpu.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpus_read_unlock'>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='crc8' mangled-name='crc8' filepath='lib/crc8.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crc8'>
@@ -113969,8 +109351,8 @@
         <parameter type-id='f0981eeb' name='keylen' filepath='crypto/aead.c' line='44' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_ahash_finup' mangled-name='crypto_ahash_finup' filepath='include/crypto/hash.h' line='448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_ahash_finup'>
-        <parameter type-id='6f3c82ac'/>
+      <function-decl name='crypto_ahash_finup' mangled-name='crypto_ahash_finup' filepath='crypto/ahash.c' line='354' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_ahash_finup'>
+        <parameter type-id='6f3c82ac' name='req' filepath='crypto/ahash.c' line='354' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_ahash_setkey' mangled-name='crypto_ahash_setkey' filepath='crypto/ahash.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_ahash_setkey'>
@@ -113987,10 +109369,10 @@
         <parameter type-id='19c2251e' name='mask' filepath='crypto/aead.c' line='214' column='1'/>
         <return type-id='a585cbc4'/>
       </function-decl>
-      <function-decl name='crypto_alloc_base' mangled-name='crypto_alloc_base' filepath='include/linux/crypto.h' line='676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_base'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='crypto_alloc_base' mangled-name='crypto_alloc_base' filepath='crypto/api.c' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_base'>
+        <parameter type-id='80f4b756' name='alg_name' filepath='crypto/api.c' line='402' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/api.c' line='402' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/api.c' line='402' column='1'/>
         <return type-id='dfeb7f6c'/>
       </function-decl>
       <function-decl name='crypto_alloc_rng' mangled-name='crypto_alloc_rng' filepath='crypto/rng.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_alloc_rng'>
@@ -114039,32 +109421,32 @@
         <parameter type-id='f0981eeb' name='keylen' filepath='crypto/cipher.c' line='44' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_comp_compress' mangled-name='crypto_comp_compress' filepath='include/linux/crypto.h' line='784' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_comp_compress'>
-        <parameter type-id='a064fed8'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8bff8096'/>
-        <parameter type-id='807869d3'/>
+      <function-decl name='crypto_comp_compress' mangled-name='crypto_comp_compress' filepath='crypto/compress.c' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_comp_compress'>
+        <parameter type-id='a064fed8' name='comp' filepath='crypto/compress.c' line='12' column='1'/>
+        <parameter type-id='bbaf3419' name='src' filepath='crypto/compress.c' line='13' column='1'/>
+        <parameter type-id='f0981eeb' name='slen' filepath='crypto/compress.c' line='13' column='1'/>
+        <parameter type-id='8bff8096' name='dst' filepath='crypto/compress.c' line='14' column='1'/>
+        <parameter type-id='807869d3' name='dlen' filepath='crypto/compress.c' line='14' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_comp_decompress' mangled-name='crypto_comp_decompress' filepath='include/linux/crypto.h' line='788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_comp_decompress'>
-        <parameter type-id='a064fed8'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8bff8096'/>
-        <parameter type-id='807869d3'/>
+      <function-decl name='crypto_comp_decompress' mangled-name='crypto_comp_decompress' filepath='crypto/compress.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_comp_decompress'>
+        <parameter type-id='a064fed8' name='comp' filepath='crypto/compress.c' line='23' column='1'/>
+        <parameter type-id='bbaf3419' name='src' filepath='crypto/compress.c' line='24' column='1'/>
+        <parameter type-id='f0981eeb' name='slen' filepath='crypto/compress.c' line='24' column='1'/>
+        <parameter type-id='8bff8096' name='dst' filepath='crypto/compress.c' line='25' column='1'/>
+        <parameter type-id='807869d3' name='dlen' filepath='crypto/compress.c' line='25' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_destroy_tfm' mangled-name='crypto_destroy_tfm' filepath='include/linux/crypto.h' line='677' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_destroy_tfm'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='dfeb7f6c'/>
+      <function-decl name='crypto_destroy_tfm' mangled-name='crypto_destroy_tfm' filepath='crypto/api.c' line='561' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_destroy_tfm'>
+        <parameter type-id='eaa32e2f' name='mem' filepath='crypto/api.c' line='561' column='1'/>
+        <parameter type-id='dfeb7f6c' name='tfm' filepath='crypto/api.c' line='561' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='crypto_drop_spawn' mangled-name='crypto_drop_spawn' filepath='crypto/algapi.c' line='704' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_drop_spawn'>
         <parameter type-id='5f880e0e' name='spawn' filepath='crypto/algapi.c' line='704' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='crypto_get_default_null_skcipher' mangled-name='crypto_get_default_null_skcipher' filepath='include/crypto/null.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_get_default_null_skcipher'>
+      <function-decl name='crypto_get_default_null_skcipher' mangled-name='crypto_get_default_null_skcipher' filepath='crypto/crypto_null.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_get_default_null_skcipher'>
         <return type-id='2e6a2f40'/>
       </function-decl>
       <function-decl name='crypto_grab_aead' mangled-name='crypto_grab_aead' filepath='crypto/aead.c' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_grab_aead'>
@@ -114107,10 +109489,10 @@
         <parameter type-id='19c2251e' name='mask' filepath='crypto/algapi.c' line='670' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_has_alg' mangled-name='crypto_has_alg' filepath='include/linux/crypto.h' line='621' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_has_alg'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='crypto_has_alg' mangled-name='crypto_has_alg' filepath='crypto/api.c' line='578' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_has_alg'>
+        <parameter type-id='80f4b756' name='name' filepath='crypto/api.c' line='578' column='1'/>
+        <parameter type-id='19c2251e' name='type' filepath='crypto/api.c' line='578' column='1'/>
+        <parameter type-id='19c2251e' name='mask' filepath='crypto/api.c' line='578' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_inst_setname' mangled-name='crypto_inst_setname' filepath='crypto/algapi.c' line='889' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_inst_setname'>
@@ -114119,7 +109501,7 @@
         <parameter type-id='67f526b5' name='alg' filepath='crypto/algapi.c' line='890' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_put_default_null_skcipher' mangled-name='crypto_put_default_null_skcipher' filepath='include/crypto/null.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_put_default_null_skcipher'>
+      <function-decl name='crypto_put_default_null_skcipher' mangled-name='crypto_put_default_null_skcipher' filepath='crypto/crypto_null.c' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_put_default_null_skcipher'>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='crypto_register_aead' mangled-name='crypto_register_aead' filepath='crypto/aead.c' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_aead'>
@@ -114140,8 +109522,8 @@
         <parameter type-id='95e97e5e' name='count' filepath='crypto/ahash.c' line='603' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_register_alg' mangled-name='crypto_register_alg' filepath='include/linux/crypto.h' line='613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_alg'>
-        <parameter type-id='67f526b5'/>
+      <function-decl name='crypto_register_alg' mangled-name='crypto_register_alg' filepath='crypto/algapi.c' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_alg'>
+        <parameter type-id='67f526b5' name='alg' filepath='crypto/algapi.c' line='412' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_register_algs' mangled-name='crypto_register_algs' filepath='crypto/algapi.c' line='467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_algs'>
@@ -114166,22 +109548,22 @@
         <parameter type-id='6e764b1e' name='alg' filepath='crypto/scompress.c' line='257' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_register_shash' mangled-name='crypto_register_shash' filepath='include/crypto/internal/hash.h' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_shash'>
-        <parameter type-id='1be0f6ab'/>
+      <function-decl name='crypto_register_shash' mangled-name='crypto_register_shash' filepath='crypto/shash.c' line='555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_shash'>
+        <parameter type-id='1be0f6ab' name='alg' filepath='crypto/shash.c' line='555' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_register_shashes' mangled-name='crypto_register_shashes' filepath='include/crypto/internal/hash.h' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_shashes'>
-        <parameter type-id='1be0f6ab'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='crypto_register_shashes' mangled-name='crypto_register_shashes' filepath='crypto/shash.c' line='574' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_shashes'>
+        <parameter type-id='1be0f6ab' name='algs' filepath='crypto/shash.c' line='574' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/shash.c' line='574' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_register_skcipher' mangled-name='crypto_register_skcipher' filepath='crypto/skcipher.c' line='816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_skcipher'>
         <parameter type-id='613dff15' name='alg' filepath='crypto/skcipher.c' line='816' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_register_skciphers' mangled-name='crypto_register_skciphers' filepath='include/crypto/internal/skcipher.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_skciphers'>
-        <parameter type-id='613dff15'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='crypto_register_skciphers' mangled-name='crypto_register_skciphers' filepath='crypto/skcipher.c' line='835' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_skciphers'>
+        <parameter type-id='613dff15' name='algs' filepath='crypto/skcipher.c' line='835' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/skcipher.c' line='835' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_register_template' mangled-name='crypto_register_template' filepath='crypto/algapi.c' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_register_template'>
@@ -114214,11 +109596,11 @@
         <parameter type-id='1be0f6ab' name='alg' filepath='crypto/shash.c' line='36' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='crypto_shash_digest' mangled-name='crypto_shash_digest' filepath='include/crypto/hash.h' line='867' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_digest'>
-        <parameter type-id='32efad44'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8bff8096'/>
+      <function-decl name='crypto_shash_digest' mangled-name='crypto_shash_digest' filepath='crypto/shash.c' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_digest'>
+        <parameter type-id='32efad44' name='desc' filepath='crypto/shash.c' line='204' column='1'/>
+        <parameter type-id='bbaf3419' name='data' filepath='crypto/shash.c' line='204' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='crypto/shash.c' line='205' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='crypto/shash.c' line='205' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_shash_final' mangled-name='crypto_shash_final' filepath='crypto/shash.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_final'>
@@ -114226,44 +109608,44 @@
         <parameter type-id='8bff8096' name='out' filepath='crypto/shash.c' line='163' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_shash_finup' mangled-name='crypto_shash_finup' filepath='include/crypto/hash.h' line='996' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_finup'>
-        <parameter type-id='32efad44'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8bff8096'/>
+      <function-decl name='crypto_shash_finup' mangled-name='crypto_shash_finup' filepath='crypto/shash.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_finup'>
+        <parameter type-id='32efad44' name='desc' filepath='crypto/shash.c' line='183' column='1'/>
+        <parameter type-id='bbaf3419' name='data' filepath='crypto/shash.c' line='183' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='crypto/shash.c' line='184' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='crypto/shash.c' line='184' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_shash_setkey' mangled-name='crypto_shash_setkey' filepath='include/crypto/hash.h' line='849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_setkey'>
-        <parameter type-id='247dd85c'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='crypto_shash_setkey' mangled-name='crypto_shash_setkey' filepath='crypto/shash.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_setkey'>
+        <parameter type-id='247dd85c' name='tfm' filepath='crypto/shash.c' line='69' column='1'/>
+        <parameter type-id='bbaf3419' name='key' filepath='crypto/shash.c' line='69' column='1'/>
+        <parameter type-id='f0981eeb' name='keylen' filepath='crypto/shash.c' line='70' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_shash_tfm_digest' mangled-name='crypto_shash_tfm_digest' filepath='include/crypto/hash.h' line='886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_tfm_digest'>
-        <parameter type-id='247dd85c'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8bff8096'/>
+      <function-decl name='crypto_shash_tfm_digest' mangled-name='crypto_shash_tfm_digest' filepath='crypto/shash.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_tfm_digest'>
+        <parameter type-id='247dd85c' name='tfm' filepath='crypto/shash.c' line='221' column='1'/>
+        <parameter type-id='bbaf3419' name='data' filepath='crypto/shash.c' line='221' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='crypto/shash.c' line='222' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='crypto/shash.c' line='222' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_shash_update' mangled-name='crypto_shash_update' filepath='include/crypto/hash.h' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_update'>
-        <parameter type-id='32efad44'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='crypto_shash_update' mangled-name='crypto_shash_update' filepath='crypto/shash.c' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_shash_update'>
+        <parameter type-id='32efad44' name='desc' filepath='crypto/shash.c' line='121' column='1'/>
+        <parameter type-id='bbaf3419' name='data' filepath='crypto/shash.c' line='121' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='crypto/shash.c' line='122' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_skcipher_decrypt' mangled-name='crypto_skcipher_decrypt' filepath='include/crypto/skcipher.h' line='432' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_decrypt'>
-        <parameter type-id='c249b570'/>
+      <function-decl name='crypto_skcipher_decrypt' mangled-name='crypto_skcipher_decrypt' filepath='crypto/skcipher.c' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_decrypt'>
+        <parameter type-id='c249b570' name='req' filepath='crypto/skcipher.c' line='642' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_skcipher_encrypt' mangled-name='crypto_skcipher_encrypt' filepath='include/crypto/skcipher.h' line='419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_encrypt'>
-        <parameter type-id='c249b570'/>
+      <function-decl name='crypto_skcipher_encrypt' mangled-name='crypto_skcipher_encrypt' filepath='crypto/skcipher.c' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_encrypt'>
+        <parameter type-id='c249b570' name='req' filepath='crypto/skcipher.c' line='625' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='crypto_skcipher_setkey' mangled-name='crypto_skcipher_setkey' filepath='include/crypto/skcipher.h' line='364' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_setkey'>
-        <parameter type-id='72bb8c36'/>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='crypto_skcipher_setkey' mangled-name='crypto_skcipher_setkey' filepath='crypto/skcipher.c' line='600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_skcipher_setkey'>
+        <parameter type-id='72bb8c36' name='tfm' filepath='crypto/skcipher.c' line='600' column='1'/>
+        <parameter type-id='bbaf3419' name='key' filepath='crypto/skcipher.c' line='600' column='1'/>
+        <parameter type-id='f0981eeb' name='keylen' filepath='crypto/skcipher.c' line='601' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='crypto_spawn_tfm' mangled-name='crypto_spawn_tfm' filepath='crypto/algapi.c' line='744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_spawn_tfm'>
@@ -114280,8 +109662,8 @@
         <parameter type-id='e4163de3' name='alg' filepath='crypto/aead.c' line='251' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='crypto_unregister_alg' mangled-name='crypto_unregister_alg' filepath='include/linux/crypto.h' line='614' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_alg'>
-        <parameter type-id='67f526b5'/>
+      <function-decl name='crypto_unregister_alg' mangled-name='crypto_unregister_alg' filepath='crypto/algapi.c' line='447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_alg'>
+        <parameter type-id='67f526b5' name='alg' filepath='crypto/algapi.c' line='447' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='crypto_unregister_notifier' mangled-name='crypto_unregister_notifier' filepath='crypto/algapi.c' line='797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_notifier'>
@@ -114305,14 +109687,14 @@
         <parameter type-id='1be0f6ab' name='alg' filepath='crypto/shash.c' line='568' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='crypto_unregister_shashes' mangled-name='crypto_unregister_shashes' filepath='include/crypto/internal/hash.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_shashes'>
-        <parameter type-id='1be0f6ab'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='crypto_unregister_shashes' mangled-name='crypto_unregister_shashes' filepath='crypto/shash.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_shashes'>
+        <parameter type-id='1be0f6ab' name='algs' filepath='crypto/shash.c' line='594' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/shash.c' line='594' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='crypto_unregister_skciphers' mangled-name='crypto_unregister_skciphers' filepath='include/crypto/internal/skcipher.h' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_skciphers'>
-        <parameter type-id='613dff15'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='crypto_unregister_skciphers' mangled-name='crypto_unregister_skciphers' filepath='crypto/skcipher.c' line='855' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_skciphers'>
+        <parameter type-id='613dff15' name='algs' filepath='crypto/skcipher.c' line='855' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='crypto/skcipher.c' line='855' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='crypto_unregister_template' mangled-name='crypto_unregister_template' filepath='crypto/algapi.c' line='536' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='crypto_unregister_template'>
@@ -114332,10 +109714,10 @@
         <parameter type-id='fbd88bba' name='csum' filepath='arch/arm64/lib/csum.c' line='134' column='1'/>
         <return type-id='7dac1e36'/>
       </function-decl>
-      <function-decl name='csum_partial' mangled-name='csum_partial' filepath='include/asm-generic/checksum.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='csum_partial'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='fbd88bba'/>
+      <function-decl name='csum_partial' mangled-name='csum_partial' filepath='lib/checksum.c' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='csum_partial'>
+        <parameter type-id='eaa32e2f' name='buff' filepath='lib/checksum.c' line='125' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='lib/checksum.c' line='125' column='1'/>
+        <parameter type-id='fbd88bba' name='wsum' filepath='lib/checksum.c' line='125' column='1'/>
         <return type-id='fbd88bba'/>
       </function-decl>
       <function-decl name='csum_tcpudp_nofold' mangled-name='csum_tcpudp_nofold' filepath='lib/checksum.c' line='158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='csum_tcpudp_nofold'>
@@ -114346,8 +109728,8 @@
         <parameter type-id='fbd88bba' name='sum' filepath='lib/checksum.c' line='159' column='1'/>
         <return type-id='fbd88bba'/>
       </function-decl>
-      <function-decl name='current_time' mangled-name='current_time' filepath='include/linux/fs.h' line='1611' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='current_time'>
-        <parameter type-id='7e666abe'/>
+      <function-decl name='current_time' mangled-name='current_time' filepath='fs/inode.c' line='2286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='current_time'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/inode.c' line='2286' column='1'/>
         <return type-id='40a816ad'/>
       </function-decl>
       <function-decl name='current_work' mangled-name='current_work' filepath='kernel/workqueue.c' line='4526' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='current_work'>
@@ -114363,12 +109745,12 @@
         <parameter type-id='80f4b756' name='name' filepath='fs/dcache.c' line='1844' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
-      <function-decl name='d_delete' mangled-name='d_delete' filepath='include/linux/dcache.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_delete'>
-        <parameter type-id='27675065'/>
+      <function-decl name='d_delete' mangled-name='d_delete' filepath='fs/dcache.c' line='2459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_delete'>
+        <parameter type-id='27675065' name='dentry' filepath='fs/dcache.c' line='2459' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='d_make_root' mangled-name='d_make_root' filepath='include/linux/dcache.h' line='263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_make_root'>
-        <parameter type-id='7e666abe'/>
+      <function-decl name='d_make_root' mangled-name='d_make_root' filepath='fs/dcache.c' line='2003' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='d_make_root'>
+        <parameter type-id='7e666abe' name='root_inode' filepath='fs/dcache.c' line='2003' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
       <function-decl name='datagram_poll' mangled-name='datagram_poll' filepath='net/core/datagram.c' line='797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='datagram_poll'>
@@ -114405,32 +109787,32 @@
         <parameter type-id='3a843513' name='blob' filepath='fs/debugfs/file.c' line='919' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
-      <function-decl name='debugfs_create_bool' mangled-name='debugfs_create_bool' filepath='include/linux/debugfs.h' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_bool'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='27675065'/>
-        <parameter type-id='d8e6b335'/>
+      <function-decl name='debugfs_create_bool' mangled-name='debugfs_create_bool' filepath='fs/debugfs/file.c' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_bool'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='864' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='864' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='865' column='1'/>
+        <parameter type-id='d8e6b335' name='value' filepath='fs/debugfs/file.c' line='865' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
-      <function-decl name='debugfs_create_dir' mangled-name='debugfs_create_dir' filepath='include/linux/debugfs.h' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_dir'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='27675065'/>
+      <function-decl name='debugfs_create_dir' mangled-name='debugfs_create_dir' filepath='fs/debugfs/inode.c' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_dir'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/inode.c' line='551' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/inode.c' line='551' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
-      <function-decl name='debugfs_create_file' mangled-name='debugfs_create_file' filepath='include/linux/debugfs.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_file'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='27675065'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='61758ee5'/>
+      <function-decl name='debugfs_create_file' mangled-name='debugfs_create_file' filepath='fs/debugfs/inode.c' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_file'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/inode.c' line='450' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/inode.c' line='450' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/inode.c' line='451' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/debugfs/inode.c' line='451' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='fs/debugfs/inode.c' line='452' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
-      <function-decl name='debugfs_create_file_unsafe' mangled-name='debugfs_create_file_unsafe' filepath='include/linux/debugfs.h' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_file_unsafe'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='27675065'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='61758ee5'/>
+      <function-decl name='debugfs_create_file_unsafe' mangled-name='debugfs_create_file_unsafe' filepath='fs/debugfs/inode.c' line='489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_file_unsafe'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/inode.c' line='489' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/inode.c' line='489' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/inode.c' line='490' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/debugfs/inode.c' line='490' column='1'/>
+        <parameter type-id='61758ee5' name='fops' filepath='fs/debugfs/inode.c' line='491' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
       <function-decl name='debugfs_create_size_t' mangled-name='debugfs_create_size_t' filepath='fs/debugfs/file.c' line='733' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_size_t'>
@@ -114454,11 +109836,11 @@
         <parameter type-id='f9409001' name='value' filepath='fs/debugfs/file.c' line='515' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='debugfs_create_u64' mangled-name='debugfs_create_u64' filepath='include/linux/debugfs.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u64'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='27675065'/>
-        <parameter type-id='3df9fd28'/>
+      <function-decl name='debugfs_create_u64' mangled-name='debugfs_create_u64' filepath='fs/debugfs/file.c' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u64'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/file.c' line='551' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/debugfs/file.c' line='551' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/file.c' line='551' column='1'/>
+        <parameter type-id='3df9fd28' name='value' filepath='fs/debugfs/file.c' line='552' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='debugfs_create_u8' mangled-name='debugfs_create_u8' filepath='fs/debugfs/file.c' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_create_u8'>
@@ -114482,18 +109864,18 @@
         <parameter type-id='3df9fd28' name='value' filepath='fs/debugfs/file.c' line='700' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='debugfs_lookup' mangled-name='debugfs_lookup' filepath='include/linux/debugfs.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_lookup'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='27675065'/>
+      <function-decl name='debugfs_lookup' mangled-name='debugfs_lookup' filepath='fs/debugfs/inode.c' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_lookup'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/debugfs/inode.c' line='296' column='1'/>
+        <parameter type-id='27675065' name='parent' filepath='fs/debugfs/inode.c' line='296' column='1'/>
         <return type-id='27675065'/>
       </function-decl>
-      <function-decl name='debugfs_remove' mangled-name='debugfs_remove' filepath='include/linux/debugfs.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_remove'>
-        <parameter type-id='27675065'/>
+      <function-decl name='debugfs_remove' mangled-name='debugfs_remove' filepath='fs/debugfs/inode.c' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='debugfs_remove'>
+        <parameter type-id='27675065' name='dentry' filepath='fs/debugfs/inode.c' line='722' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dec_zone_page_state' mangled-name='dec_zone_page_state' filepath='include/linux/vmstat.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dec_zone_page_state'>
-        <parameter type-id='02f11ed4'/>
-        <parameter type-id='a1f2d9a1'/>
+      <function-decl name='dec_zone_page_state' mangled-name='dec_zone_page_state' filepath='mm/vmstat.c' line='540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dec_zone_page_state'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/vmstat.c' line='540' column='1'/>
+        <parameter type-id='a1f2d9a1' name='item' filepath='mm/vmstat.c' line='540' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='default_llseek' mangled-name='default_llseek' filepath='fs/read_write.c' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='default_llseek'>
@@ -114512,16 +109894,16 @@
         <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='892' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='del_random_ready_callback' mangled-name='del_random_ready_callback' filepath='include/linux/random.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_random_ready_callback'>
-        <parameter type-id='b47c553a'/>
+      <function-decl name='del_random_ready_callback' mangled-name='del_random_ready_callback' filepath='drivers/char/random.c' line='1721' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_random_ready_callback'>
+        <parameter type-id='b47c553a' name='rdy' filepath='drivers/char/random.c' line='1721' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='del_timer' mangled-name='del_timer' filepath='include/linux/timer.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_timer'>
-        <parameter type-id='9248e67f'/>
+      <function-decl name='del_timer' mangled-name='del_timer' filepath='kernel/time/timer.c' line='1204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_timer'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='1204' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='del_timer_sync' mangled-name='del_timer_sync' filepath='include/linux/timer.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_timer_sync'>
-        <parameter type-id='9248e67f'/>
+      <function-decl name='del_timer_sync' mangled-name='del_timer_sync' filepath='kernel/time/timer.c' line='1358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='del_timer_sync'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='1358' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='delayed_work_timer_fn' mangled-name='delayed_work_timer_fn' filepath='kernel/workqueue.c' line='1635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='delayed_work_timer_fn'>
@@ -114532,8 +109914,8 @@
         <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='164' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='destroy_workqueue' mangled-name='destroy_workqueue' filepath='include/linux/workqueue.h' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='destroy_workqueue'>
-        <parameter type-id='242e3d19'/>
+      <function-decl name='destroy_workqueue' mangled-name='destroy_workqueue' filepath='kernel/workqueue.c' line='4399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='destroy_workqueue'>
+        <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='4399' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dev_alloc_name' mangled-name='dev_alloc_name' filepath='net/core/dev.c' line='1271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_alloc_name'>
@@ -114562,34 +109944,34 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devcoredump.c' line='186' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dev_driver_string' mangled-name='dev_driver_string' filepath='include/linux/device.h' line='944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_driver_string'>
-        <parameter type-id='8df61054'/>
+      <function-decl name='dev_driver_string' mangled-name='dev_driver_string' filepath='drivers/base/core.c' line='1963' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_driver_string'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='1963' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='dev_err_probe' mangled-name='dev_err_probe' filepath='include/linux/device.h' line='955' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_err_probe'>
-        <parameter type-id='8df61054'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dev_err_probe' mangled-name='dev_err_probe' filepath='drivers/base/core.c' line='4546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_err_probe'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4546' column='1'/>
+        <parameter type-id='95e97e5e' name='err' filepath='drivers/base/core.c' line='4546' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4546' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dev_fwnode' mangled-name='dev_fwnode' filepath='include/linux/property.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_fwnode'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='dev_fwnode' mangled-name='dev_fwnode' filepath='drivers/base/property.c' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_fwnode'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='21' column='1'/>
         <return type-id='4a935625'/>
       </function-decl>
-      <function-decl name='dev_get_by_name' mangled-name='dev_get_by_name' filepath='include/linux/netdevice.h' line='2883' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_by_name'>
-        <parameter type-id='a2bff676'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dev_get_by_name' mangled-name='dev_get_by_name' filepath='net/core/dev.c' line='910' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_by_name'>
+        <parameter type-id='a2bff676' name='net' filepath='net/core/dev.c' line='910' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='net/core/dev.c' line='910' column='1'/>
         <return type-id='68a2d05b'/>
       </function-decl>
-      <function-decl name='dev_get_regmap' mangled-name='dev_get_regmap' filepath='include/linux/regmap.h' line='1047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_regmap'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dev_get_regmap' mangled-name='dev_get_regmap' filepath='drivers/base/regmap/regmap.c' line='1531' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_regmap'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap.c' line='1531' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/regmap/regmap.c' line='1531' column='1'/>
         <return type-id='29af9a71'/>
       </function-decl>
-      <function-decl name='dev_get_stats' mangled-name='dev_get_stats' filepath='include/linux/netdevice.h' line='4611' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_stats'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='bd3860fe'/>
+      <function-decl name='dev_get_stats' mangled-name='dev_get_stats' filepath='net/core/dev.c' line='10463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_get_stats'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10463' column='1'/>
+        <parameter type-id='bd3860fe' name='storage' filepath='net/core/dev.c' line='10464' column='1'/>
         <return type-id='bd3860fe'/>
       </function-decl>
       <function-decl name='dev_mc_sync_multiple' mangled-name='dev_mc_sync_multiple' filepath='net/core/dev_addr_lists.c' line='893' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_mc_sync_multiple'>
@@ -114611,9 +109993,9 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeirq.c' line='87' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dev_pm_domain_attach' mangled-name='dev_pm_domain_attach' filepath='include/linux/pm_domain.h' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_attach'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='dev_pm_domain_attach' mangled-name='dev_pm_domain_attach' filepath='drivers/base/power/common.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_attach'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/common.c' line='102' column='1'/>
+        <parameter type-id='b50a4934' name='power_on' filepath='drivers/base/power/common.c' line='102' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dev_pm_domain_attach_by_name' mangled-name='dev_pm_domain_attach_by_name' filepath='drivers/base/power/common.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_attach_by_name'>
@@ -114621,9 +110003,9 @@
         <parameter type-id='80f4b756' name='name' filepath='drivers/base/power/common.c' line='161' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='dev_pm_domain_detach' mangled-name='dev_pm_domain_detach' filepath='include/linux/pm_domain.h' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_detach'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='dev_pm_domain_detach' mangled-name='dev_pm_domain_detach' filepath='drivers/base/power/common.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_domain_detach'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/common.c' line='183' column='1'/>
+        <parameter type-id='b50a4934' name='power_off' filepath='drivers/base/power/common.c' line='183' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dev_pm_genpd_set_performance_state' mangled-name='dev_pm_genpd_set_performance_state' filepath='drivers/base/power/domain.c' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_genpd_set_performance_state'>
@@ -114631,10 +110013,10 @@
         <parameter type-id='f0981eeb' name='state' filepath='drivers/base/power/domain.c' line='391' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_add' mangled-name='dev_pm_opp_add' filepath='include/linux/pm_opp.h' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_add'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='dev_pm_opp_add' mangled-name='dev_pm_opp_add' filepath='drivers/opp/core.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_add'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='2182' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='drivers/opp/core.c' line='2182' column='1'/>
+        <parameter type-id='7359adad' name='u_volt' filepath='drivers/opp/core.c' line='2182' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dev_pm_opp_adjust_voltage' mangled-name='dev_pm_opp_adjust_voltage' filepath='drivers/opp/core.c' line='2284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_adjust_voltage'>
@@ -114660,15 +110042,15 @@
         <parameter type-id='1d2c2b85' name='freq' filepath='drivers/opp/core.c' line='494' column='1'/>
         <return type-id='02e48bc6'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_find_freq_exact' mangled-name='dev_pm_opp_find_freq_exact' filepath='include/linux/pm_opp.h' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_exact'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='dev_pm_opp_find_freq_exact' mangled-name='dev_pm_opp_find_freq_exact' filepath='drivers/opp/core.c' line='369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_exact'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='369' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='drivers/opp/core.c' line='370' column='1'/>
+        <parameter type-id='b50a4934' name='available' filepath='drivers/opp/core.c' line='371' column='1'/>
         <return type-id='02e48bc6'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_find_freq_floor' mangled-name='dev_pm_opp_find_freq_floor' filepath='include/linux/pm_opp.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_floor'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='1d2c2b85'/>
+      <function-decl name='dev_pm_opp_find_freq_floor' mangled-name='dev_pm_opp_find_freq_floor' filepath='drivers/opp/core.c' line='534' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_find_freq_floor'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='534' column='1'/>
+        <parameter type-id='1d2c2b85' name='freq' filepath='drivers/opp/core.c' line='535' column='1'/>
         <return type-id='02e48bc6'/>
       </function-decl>
       <function-decl name='dev_pm_opp_free_cpufreq_table' mangled-name='dev_pm_opp_free_cpufreq_table' filepath='drivers/opp/cpu.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_free_cpufreq_table'>
@@ -114688,8 +110070,8 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='270' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_get_opp_count' mangled-name='dev_pm_opp_get_opp_count' filepath='include/linux/pm_opp.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_opp_count'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='dev_pm_opp_get_opp_count' mangled-name='dev_pm_opp_get_opp_count' filepath='drivers/opp/core.c' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_opp_count'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='326' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dev_pm_opp_get_opp_table' mangled-name='dev_pm_opp_get_opp_table' filepath='drivers/opp/core.c' line='1171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_opp_table'>
@@ -114705,8 +110087,8 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/core.c' line='284' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_get_voltage' mangled-name='dev_pm_opp_get_voltage' filepath='include/linux/pm_opp.h' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_voltage'>
-        <parameter type-id='02e48bc6'/>
+      <function-decl name='dev_pm_opp_get_voltage' mangled-name='dev_pm_opp_get_voltage' filepath='drivers/opp/core.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_get_voltage'>
+        <parameter type-id='02e48bc6' name='opp' filepath='drivers/opp/core.c' line='101' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='dev_pm_opp_init_cpufreq_table' mangled-name='dev_pm_opp_init_cpufreq_table' filepath='drivers/opp/cpu.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_init_cpufreq_table'>
@@ -114714,8 +110096,8 @@
         <parameter type-id='873a2591' name='table' filepath='drivers/opp/cpu.c' line='44' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_of_add_table' mangled-name='dev_pm_opp_of_add_table' filepath='include/linux/pm_opp.h' line='373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_add_table'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='dev_pm_opp_of_add_table' mangled-name='dev_pm_opp_of_add_table' filepath='drivers/opp/of.c' line='965' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_add_table'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/of.c' line='965' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dev_pm_opp_of_cpumask_add_table' mangled-name='dev_pm_opp_of_cpumask_add_table' filepath='drivers/opp/of.c' line='1058' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_cpumask_add_table'>
@@ -114726,9 +110108,9 @@
         <parameter type-id='5f8a1ac4' name='cpumask' filepath='drivers/opp/of.c' line='1046' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_of_find_icc_paths' mangled-name='dev_pm_opp_of_find_icc_paths' filepath='include/linux/pm_opp.h' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_find_icc_paths'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='e62a60bd'/>
+      <function-decl name='dev_pm_opp_of_find_icc_paths' mangled-name='dev_pm_opp_of_find_icc_paths' filepath='drivers/opp/of.c' line='364' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_find_icc_paths'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/of.c' line='364' column='1'/>
+        <parameter type-id='e62a60bd' name='opp_table' filepath='drivers/opp/of.c' line='365' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dev_pm_opp_of_get_sharing_cpus' mangled-name='dev_pm_opp_of_get_sharing_cpus' filepath='drivers/opp/of.c' line='1115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_of_get_sharing_cpus'>
@@ -114745,16 +110127,16 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/opp/of.c' line='628' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_put' mangled-name='dev_pm_opp_put' filepath='include/linux/pm_opp.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put'>
-        <parameter type-id='02e48bc6'/>
+      <function-decl name='dev_pm_opp_put' mangled-name='dev_pm_opp_put' filepath='drivers/opp/core.c' line='1271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put'>
+        <parameter type-id='02e48bc6' name='opp' filepath='drivers/opp/core.c' line='1271' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dev_pm_opp_put_clkname' mangled-name='dev_pm_opp_put_clkname' filepath='drivers/opp/core.c' line='1908' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_clkname'>
         <parameter type-id='e62a60bd' name='opp_table' filepath='drivers/opp/core.c' line='1908' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dev_pm_opp_put_opp_table' mangled-name='dev_pm_opp_put_opp_table' filepath='include/linux/pm_opp.h' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_opp_table'>
-        <parameter type-id='e62a60bd'/>
+      <function-decl name='dev_pm_opp_put_opp_table' mangled-name='dev_pm_opp_put_opp_table' filepath='drivers/opp/core.c' line='1223' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_opp_table'>
+        <parameter type-id='e62a60bd' name='opp_table' filepath='drivers/opp/core.c' line='1223' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dev_pm_opp_put_regulators' mangled-name='dev_pm_opp_put_regulators' filepath='drivers/opp/core.c' line='1824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_opp_put_regulators'>
@@ -114838,9 +110220,9 @@
         <parameter type-id='a7832498' name='new_value' filepath='drivers/base/power/qos.c' line='464' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dev_pm_qos_update_user_latency_tolerance' mangled-name='dev_pm_qos_update_user_latency_tolerance' filepath='include/linux/pm_qos.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_update_user_latency_tolerance'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='a7832498'/>
+      <function-decl name='dev_pm_qos_update_user_latency_tolerance' mangled-name='dev_pm_qos_update_user_latency_tolerance' filepath='drivers/base/power/qos.c' line='905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_qos_update_user_latency_tolerance'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/qos.c' line='905' column='1'/>
+        <parameter type-id='a7832498' name='val' filepath='drivers/base/power/qos.c' line='905' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dev_pm_set_dedicated_wake_irq' mangled-name='dev_pm_set_dedicated_wake_irq' filepath='drivers/base/power/wakeirq.c' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_pm_set_dedicated_wake_irq'>
@@ -114848,17 +110230,17 @@
         <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/power/wakeirq.c' line='165' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dev_printk' mangled-name='dev_printk' filepath='include/linux/dev_printk.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_printk'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='8df61054'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dev_printk' mangled-name='dev_printk' filepath='drivers/base/core.c' line='4475' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_printk'>
+        <parameter type-id='80f4b756' name='level' filepath='drivers/base/core.c' line='4475' column='1'/>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4475' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4476' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dev_printk_emit' mangled-name='dev_printk_emit' filepath='include/linux/dev_printk.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_printk_emit'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='8df61054'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dev_printk_emit' mangled-name='dev_printk_emit' filepath='drivers/base/core.c' line='4450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_printk_emit'>
+        <parameter type-id='95e97e5e' name='level' filepath='drivers/base/core.c' line='4450' column='1'/>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/base/core.c' line='4450' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='4450' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
@@ -114871,9 +110253,9 @@
         <parameter type-id='95e97e5e' name='new_mtu' filepath='net/core/dev.c' line='8651' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dev_set_name' mangled-name='dev_set_name' filepath='include/linux/device.h' line='645' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_set_name'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dev_set_name' mangled-name='dev_set_name' filepath='drivers/base/core.c' line='3034' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dev_set_name'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3034' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='3034' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
@@ -114887,11 +110269,11 @@
         <parameter type-id='68a2d05b' name='from' filepath='net/core/dev_addr_lists.c' line='688' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='devfreq_add_device' mangled-name='devfreq_add_device' filepath='include/linux/devfreq.h' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_add_device'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='cba10b6e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devfreq_add_device' mangled-name='devfreq_add_device' filepath='drivers/devfreq/devfreq.c' line='746' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_add_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/devfreq/devfreq.c' line='746' column='1'/>
+        <parameter type-id='cba10b6e' name='profile' filepath='drivers/devfreq/devfreq.c' line='747' column='1'/>
+        <parameter type-id='80f4b756' name='governor_name' filepath='drivers/devfreq/devfreq.c' line='748' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/devfreq/devfreq.c' line='749' column='1'/>
         <return type-id='f66fa7f4'/>
       </function-decl>
       <function-decl name='devfreq_add_governor' mangled-name='devfreq_add_governor' filepath='drivers/devfreq/devfreq.c' line='1193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_add_governor'>
@@ -114929,16 +110311,16 @@
         <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='1932' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devfreq_remove_device' mangled-name='devfreq_remove_device' filepath='include/linux/devfreq.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_remove_device'>
-        <parameter type-id='f66fa7f4'/>
+      <function-decl name='devfreq_remove_device' mangled-name='devfreq_remove_device' filepath='drivers/devfreq/devfreq.c' line='922' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_remove_device'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='922' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devfreq_resume_device' mangled-name='devfreq_resume_device' filepath='include/linux/devfreq.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_resume_device'>
-        <parameter type-id='f66fa7f4'/>
+      <function-decl name='devfreq_resume_device' mangled-name='devfreq_resume_device' filepath='drivers/devfreq/devfreq.c' line='1116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_resume_device'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='1116' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devfreq_suspend_device' mangled-name='devfreq_suspend_device' filepath='include/linux/devfreq.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_suspend_device'>
-        <parameter type-id='f66fa7f4'/>
+      <function-decl name='devfreq_suspend_device' mangled-name='devfreq_suspend_device' filepath='drivers/devfreq/devfreq.c' line='1079' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_suspend_device'>
+        <parameter type-id='f66fa7f4' name='devfreq' filepath='drivers/devfreq/devfreq.c' line='1079' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devfreq_unregister_opp_notifier' mangled-name='devfreq_unregister_opp_notifier' filepath='drivers/devfreq/devfreq.c' line='1948' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devfreq_unregister_opp_notifier'>
@@ -114951,8 +110333,8 @@
         <parameter type-id='807869d3' name='delay' filepath='drivers/devfreq/devfreq.c' line='572' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_add' mangled-name='device_add' filepath='include/linux/device.h' line='805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_add'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='device_add' mangled-name='device_add' filepath='drivers/base/core.c' line='3133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_add'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3133' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='device_add_disk' mangled-name='device_add_disk' filepath='block/genhd.c' line='840' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_add_disk'>
@@ -114966,20 +110348,20 @@
         <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/core.c' line='2343' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_attach' mangled-name='device_attach' filepath='drivers/base/dd.c' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_attach'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='962' column='1'/>
+      <function-decl name='device_attach' mangled-name='device_attach' filepath='drivers/base/dd.c' line='965' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_attach'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='965' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='device_bind_driver' mangled-name='device_bind_driver' filepath='drivers/base/dd.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_bind_driver'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='460' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_create' mangled-name='device_create' filepath='include/linux/device.h' line='877' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create'>
-        <parameter type-id='67aca04f'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='8504f260'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='device_create' mangled-name='device_create' filepath='drivers/base/core.c' line='3939' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create'>
+        <parameter type-id='67aca04f' name='class' filepath='drivers/base/core.c' line='3939' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/base/core.c' line='3939' column='1'/>
+        <parameter type-id='8504f260' name='devt' filepath='drivers/base/core.c' line='3940' column='1'/>
+        <parameter type-id='eaa32e2f' name='drvdata' filepath='drivers/base/core.c' line='3940' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='3940' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='fa0b179b'/>
       </function-decl>
@@ -114988,40 +110370,40 @@
         <parameter type-id='559ac6f0' name='attr' filepath='drivers/base/core.c' line='2668' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_create_file' mangled-name='device_create_file' filepath='include/linux/device.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_file'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='de63df21'/>
+      <function-decl name='device_create_file' mangled-name='device_create_file' filepath='drivers/base/core.c' line='2613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_file'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2613' column='1'/>
+        <parameter type-id='de63df21' name='attr' filepath='drivers/base/core.c' line='2614' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_create_with_groups' mangled-name='device_create_with_groups' filepath='include/linux/device.h' line='880' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_with_groups'>
-        <parameter type-id='67aca04f'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='8504f260'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='c97de1ac'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='device_create_with_groups' mangled-name='device_create_with_groups' filepath='drivers/base/core.c' line='3980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_create_with_groups'>
+        <parameter type-id='67aca04f' name='class' filepath='drivers/base/core.c' line='3980' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/base/core.c' line='3981' column='1'/>
+        <parameter type-id='8504f260' name='devt' filepath='drivers/base/core.c' line='3981' column='1'/>
+        <parameter type-id='eaa32e2f' name='drvdata' filepath='drivers/base/core.c' line='3982' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/core.c' line='3983' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/core.c' line='3984' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='device_del' mangled-name='device_del' filepath='include/linux/device.h' line='806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_del'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='device_del' mangled-name='device_del' filepath='drivers/base/core.c' line='3388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_del'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3388' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_destroy' mangled-name='device_destroy' filepath='include/linux/device.h' line='883' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_destroy'>
-        <parameter type-id='67aca04f'/>
-        <parameter type-id='8504f260'/>
+      <function-decl name='device_destroy' mangled-name='device_destroy' filepath='drivers/base/core.c' line='4005' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_destroy'>
+        <parameter type-id='67aca04f' name='class' filepath='drivers/base/core.c' line='4005' column='1'/>
+        <parameter type-id='8504f260' name='devt' filepath='drivers/base/core.c' line='4005' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_find_child' mangled-name='device_find_child' filepath='include/linux/device.h' line='811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_find_child'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='92d15ae9'/>
+      <function-decl name='device_find_child' mangled-name='device_find_child' filepath='drivers/base/core.c' line='3619' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_find_child'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/base/core.c' line='3619' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/core.c' line='3619' column='1'/>
+        <parameter type-id='92d15ae9' name='match' filepath='drivers/base/core.c' line='3620' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='device_for_each_child' mangled-name='device_for_each_child' filepath='include/linux/device.h' line='807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_for_each_child'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='92d15ae9'/>
+      <function-decl name='device_for_each_child' mangled-name='device_for_each_child' filepath='drivers/base/core.c' line='3554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_for_each_child'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/base/core.c' line='3554' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/core.c' line='3554' column='1'/>
+        <parameter type-id='92d15ae9' name='fn' filepath='drivers/base/core.c' line='3555' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='device_get_child_node_count' mangled-name='device_get_child_node_count' filepath='drivers/base/property.c' line='851' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_get_child_node_count'>
@@ -115052,19 +110434,19 @@
         <parameter type-id='4a935625' name='child' filepath='drivers/base/property.c' line='760' column='1'/>
         <return type-id='4a935625'/>
       </function-decl>
-      <function-decl name='device_init_wakeup' mangled-name='device_init_wakeup' filepath='include/linux/pm_wakeup.h' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_init_wakeup'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='device_init_wakeup' mangled-name='device_init_wakeup' filepath='drivers/base/power/wakeup.c' line='517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_init_wakeup'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='517' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/base/power/wakeup.c' line='517' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_initialize' mangled-name='device_initialize' filepath='include/linux/device.h' line='804' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_initialize'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='device_initialize' mangled-name='device_initialize' filepath='drivers/base/core.c' line='2726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_initialize'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2726' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_link_add' mangled-name='device_link_add' filepath='include/linux/device.h' line='947' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_link_add'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='device_link_add' mangled-name='device_link_add' filepath='drivers/base/core.c' line='670' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_link_add'>
+        <parameter type-id='fa0b179b' name='consumer' filepath='drivers/base/core.c' line='670' column='1'/>
+        <parameter type-id='fa0b179b' name='supplier' filepath='drivers/base/core.c' line='671' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/base/core.c' line='671' column='1'/>
         <return type-id='7acfb3fa'/>
       </function-decl>
       <function-decl name='device_link_del' mangled-name='device_link_del' filepath='drivers/base/core.c' line='900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_link_del'>
@@ -115081,9 +110463,9 @@
         <parameter type-id='eaa32e2f' name='name' filepath='drivers/base/core.c' line='4644' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_property_present' mangled-name='device_property_present' filepath='include/linux/property.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_present'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='device_property_present' mangled-name='device_property_present' filepath='drivers/base/property.c' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_present'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='35' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='35' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='device_property_read_string' mangled-name='device_property_read_string' filepath='drivers/base/property.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_string'>
@@ -115106,19 +110488,19 @@
         <parameter type-id='b59d7dce' name='nval' filepath='drivers/base/property.c' line='104' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_property_read_u32_array' mangled-name='device_property_read_u32_array' filepath='include/linux/property.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_u32_array'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f9409001'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='device_property_read_u32_array' mangled-name='device_property_read_u32_array' filepath='drivers/base/property.c' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_read_u32_array'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='128' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='128' column='1'/>
+        <parameter type-id='f9409001' name='val' filepath='drivers/base/property.c' line='129' column='1'/>
+        <parameter type-id='b59d7dce' name='nval' filepath='drivers/base/property.c' line='129' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='device_register' mangled-name='device_register' filepath='drivers/base/core.c' line='3324' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_register'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3324' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_release_driver' mangled-name='device_release_driver' filepath='drivers/base/dd.c' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_release_driver'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='1212' column='1'/>
+      <function-decl name='device_release_driver' mangled-name='device_release_driver' filepath='drivers/base/dd.c' line='1217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_release_driver'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/dd.c' line='1217' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='device_remove_bin_file' mangled-name='device_remove_bin_file' filepath='drivers/base/core.c' line='2682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_bin_file'>
@@ -115126,14 +110508,14 @@
         <parameter type-id='559ac6f0' name='attr' filepath='drivers/base/core.c' line='2683' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_remove_file' mangled-name='device_remove_file' filepath='include/linux/device.h' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='de63df21'/>
+      <function-decl name='device_remove_file' mangled-name='device_remove_file' filepath='drivers/base/core.c' line='2637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2637' column='1'/>
+        <parameter type-id='de63df21' name='attr' filepath='drivers/base/core.c' line='2638' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_remove_file_self' mangled-name='device_remove_file_self' filepath='include/linux/device.h' line='158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file_self'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='de63df21'/>
+      <function-decl name='device_remove_file_self' mangled-name='device_remove_file_self' filepath='drivers/base/core.c' line='2652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_file_self'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='2652' column='1'/>
+        <parameter type-id='de63df21' name='attr' filepath='drivers/base/core.c' line='2653' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='device_remove_groups' mangled-name='device_remove_groups' filepath='drivers/base/core.c' line='2349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_remove_groups'>
@@ -115141,32 +110523,32 @@
         <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/core.c' line='2350' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_set_wakeup_capable' mangled-name='device_set_wakeup_capable' filepath='include/linux/pm_wakeup.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_capable'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='device_set_wakeup_capable' mangled-name='device_set_wakeup_capable' filepath='drivers/base/power/wakeup.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_capable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='487' column='1'/>
+        <parameter type-id='b50a4934' name='capable' filepath='drivers/base/power/wakeup.c' line='487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_set_wakeup_enable' mangled-name='device_set_wakeup_enable' filepath='include/linux/pm_wakeup.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_enable'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='device_set_wakeup_enable' mangled-name='device_set_wakeup_enable' filepath='drivers/base/power/wakeup.c' line='540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_set_wakeup_enable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='540' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/base/power/wakeup.c' line='540' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_unregister' mangled-name='device_unregister' filepath='include/linux/device.h' line='803' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_unregister'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='device_unregister' mangled-name='device_unregister' filepath='drivers/base/core.c' line='3463' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_unregister'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3463' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='device_wakeup_disable' mangled-name='device_wakeup_disable' filepath='include/linux/pm_wakeup.h' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_wakeup_disable'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='device_wakeup_disable' mangled-name='device_wakeup_disable' filepath='drivers/base/power/wakeup.c' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_wakeup_disable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='462' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='device_wakeup_enable' mangled-name='device_wakeup_enable' filepath='drivers/base/power/wakeup.c' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_wakeup_enable'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='340' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_add_action' mangled-name='devm_add_action' filepath='include/linux/device.h' line='254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_add_action'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b7f9d8e6'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devm_add_action' mangled-name='devm_add_action' filepath='drivers/base/devres.c' line='739' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_add_action'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='739' column='1'/>
+        <parameter type-id='b7f9d8e6' name='action' filepath='drivers/base/devres.c' line='739' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/base/devres.c' line='739' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_backlight_device_register' mangled-name='devm_backlight_device_register' filepath='drivers/video/backlight/backlight.c' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_backlight_device_register'>
@@ -115189,10 +110571,10 @@
         <parameter type-id='f0981eeb' name='num_slots' filepath='block/keyslot-manager.c' line='153' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_clk_bulk_get' mangled-name='devm_clk_bulk_get' filepath='include/linux/clk.h' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='2942e355'/>
+      <function-decl name='devm_clk_bulk_get' mangled-name='devm_clk_bulk_get' filepath='drivers/clk/clk-devres.c' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='81' column='1'/>
+        <parameter type-id='95e97e5e' name='num_clks' filepath='drivers/clk/clk-devres.c' line='81' column='1'/>
+        <parameter type-id='2942e355' name='clks' filepath='drivers/clk/clk-devres.c' line='82' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_clk_bulk_get_all' mangled-name='devm_clk_bulk_get_all' filepath='drivers/clk/clk-devres.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get_all'>
@@ -115200,15 +110582,15 @@
         <parameter type-id='734c20ed' name='clks' filepath='drivers/clk/clk-devres.c' line='103' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_clk_bulk_get_optional' mangled-name='devm_clk_bulk_get_optional' filepath='include/linux/clk.h' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get_optional'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='2942e355'/>
+      <function-decl name='devm_clk_bulk_get_optional' mangled-name='devm_clk_bulk_get_optional' filepath='drivers/clk/clk-devres.c' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_bulk_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='88' column='1'/>
+        <parameter type-id='95e97e5e' name='num_clks' filepath='drivers/clk/clk-devres.c' line='88' column='1'/>
+        <parameter type-id='2942e355' name='clks' filepath='drivers/clk/clk-devres.c' line='89' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_clk_get' mangled-name='devm_clk_get' filepath='include/linux/clk.h' line='437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='devm_clk_get' mangled-name='devm_clk_get' filepath='drivers/clk/clk-devres.c' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/clk/clk-devres.c' line='12' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/clk/clk-devres.c' line='12' column='1'/>
         <return type-id='7d0bc0eb'/>
       </function-decl>
       <function-decl name='devm_clk_get_optional' mangled-name='devm_clk_get_optional' filepath='drivers/clk/clk-devres.c' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_clk_get_optional'>
@@ -115402,35 +110784,35 @@
         <parameter type-id='eaa32e2f' name='addr' filepath='lib/devres.c' line='108' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='devm_kasprintf' mangled-name='devm_kasprintf' filepath='include/linux/device.h' line='214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kasprintf'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='devm_kasprintf' mangled-name='devm_kasprintf' filepath='drivers/base/devres.c' line='1036' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kasprintf'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='1036' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='1036' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/base/devres.c' line='1036' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='devm_kfree' mangled-name='devm_kfree' filepath='include/linux/device.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kfree'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devm_kfree' mangled-name='devm_kfree' filepath='drivers/base/devres.c' line='1056' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kfree'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='1056' column='1'/>
+        <parameter type-id='eaa32e2f' name='p' filepath='drivers/base/devres.c' line='1056' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='devm_kmalloc' mangled-name='devm_kmalloc' filepath='include/linux/device.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kmalloc'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='devm_kmalloc' mangled-name='devm_kmalloc' filepath='drivers/base/devres.c' line='826' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kmalloc'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='826' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/base/devres.c' line='826' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='826' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='devm_kmemdup' mangled-name='devm_kmemdup' filepath='include/linux/device.h' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kmemdup'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='devm_kmemdup' mangled-name='devm_kmemdup' filepath='drivers/base/devres.c' line='1082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kmemdup'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='1082' column='1'/>
+        <parameter type-id='eaa32e2f' name='src' filepath='drivers/base/devres.c' line='1082' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/base/devres.c' line='1082' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='1082' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='devm_kstrdup' mangled-name='devm_kstrdup' filepath='include/linux/device.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kstrdup'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='devm_kstrdup' mangled-name='devm_kstrdup' filepath='drivers/base/devres.c' line='955' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kstrdup'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='955' column='1'/>
+        <parameter type-id='80f4b756' name='s' filepath='drivers/base/devres.c' line='955' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='955' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='devm_kstrdup_const' mangled-name='devm_kstrdup_const' filepath='drivers/base/devres.c' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_kstrdup_const'>
@@ -115469,14 +110851,14 @@
         <parameter type-id='eaa32e2f' name='addr' filepath='kernel/iomem.c' line='162' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='devm_mfd_add_devices' mangled-name='devm_mfd_add_devices' filepath='include/linux/mfd/core.h' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_mfd_add_devices'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='1447e860'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='c9d64c0d'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='7544e824'/>
+      <function-decl name='devm_mfd_add_devices' mangled-name='devm_mfd_add_devices' filepath='drivers/mfd/mfd-core.c' line='419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_mfd_add_devices'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/mfd/mfd-core.c' line='419' column='1'/>
+        <parameter type-id='95e97e5e' name='id' filepath='drivers/mfd/mfd-core.c' line='419' column='1'/>
+        <parameter type-id='1447e860' name='cells' filepath='drivers/mfd/mfd-core.c' line='420' column='1'/>
+        <parameter type-id='95e97e5e' name='n_devs' filepath='drivers/mfd/mfd-core.c' line='420' column='1'/>
+        <parameter type-id='c9d64c0d' name='mem_base' filepath='drivers/mfd/mfd-core.c' line='421' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/mfd/mfd-core.c' line='422' column='1'/>
+        <parameter type-id='7544e824' name='domain' filepath='drivers/mfd/mfd-core.c' line='422' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_nvmem_cell_get' mangled-name='devm_nvmem_cell_get' filepath='drivers/nvmem/core.c' line='1144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_nvmem_cell_get'>
@@ -115484,9 +110866,9 @@
         <parameter type-id='80f4b756' name='id' filepath='drivers/nvmem/core.c' line='1144' column='1'/>
         <return type-id='4a4ce85f'/>
       </function-decl>
-      <function-decl name='devm_nvmem_register' mangled-name='devm_nvmem_register' filepath='include/linux/nvmem-provider.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_nvmem_register'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='7bb280fa'/>
+      <function-decl name='devm_nvmem_register' mangled-name='devm_nvmem_register' filepath='drivers/nvmem/core.c' line='768' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_nvmem_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/nvmem/core.c' line='768' column='1'/>
+        <parameter type-id='7bb280fa' name='config' filepath='drivers/nvmem/core.c' line='769' column='1'/>
         <return type-id='8179bc49'/>
       </function-decl>
       <function-decl name='devm_of_clk_add_hw_provider' mangled-name='devm_of_clk_add_hw_provider' filepath='drivers/clk/clk.c' line='4719' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_clk_add_hw_provider'>
@@ -115507,8 +110889,8 @@
         <parameter type-id='9e6a6c02' name='size' filepath='lib/devres.c' line='228' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='devm_of_platform_populate' mangled-name='devm_of_platform_populate' filepath='include/linux/of_platform.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_platform_populate'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='devm_of_platform_populate' mangled-name='devm_of_platform_populate' filepath='drivers/of/platform.c' line='612' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_of_platform_populate'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/platform.c' line='612' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_phy_create' mangled-name='devm_phy_create' filepath='drivers/phy/phy-core.c' line='943' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_phy_create'>
@@ -115548,20 +110930,20 @@
         <parameter type-id='53a00f3d' name='pctldev' filepath='drivers/pinctrl/core.c' line='2264' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_platform_ioremap_resource' mangled-name='devm_platform_ioremap_resource' filepath='include/linux/platform_device.h' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_platform_ioremap_resource'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='devm_platform_ioremap_resource' mangled-name='devm_platform_ioremap_resource' filepath='drivers/base/platform.c' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_platform_ioremap_resource'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='103' column='1'/>
+        <parameter type-id='f0981eeb' name='index' filepath='drivers/base/platform.c' line='104' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='devm_platform_ioremap_resource_byname' mangled-name='devm_platform_ioremap_resource_byname' filepath='include/linux/platform_device.h' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_platform_ioremap_resource_byname'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='devm_platform_ioremap_resource_byname' mangled-name='devm_platform_ioremap_resource_byname' filepath='drivers/base/platform.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_platform_ioremap_resource_byname'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='143' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/platform.c' line='144' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='devm_power_supply_register' mangled-name='devm_power_supply_register' filepath='include/linux/power_supply.h' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_power_supply_register'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='cb9cd99f'/>
-        <parameter type-id='048b3ad6'/>
+      <function-decl name='devm_power_supply_register' mangled-name='devm_power_supply_register' filepath='drivers/power/supply/power_supply_core.c' line='1358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_power_supply_register'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/power/supply/power_supply_core.c' line='1358' column='1'/>
+        <parameter type-id='cb9cd99f' name='desc' filepath='drivers/power/supply/power_supply_core.c' line='1359' column='1'/>
+        <parameter type-id='048b3ad6' name='cfg' filepath='drivers/power/supply/power_supply_core.c' line='1360' column='1'/>
         <return type-id='c0c93c9e'/>
       </function-decl>
       <function-decl name='devm_pwm_get' mangled-name='devm_pwm_get' filepath='drivers/pwm/core.c' line='1153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_pwm_get'>
@@ -115569,14 +110951,14 @@
         <parameter type-id='80f4b756' name='con_id' filepath='drivers/pwm/core.c' line='1153' column='1'/>
         <return type-id='f06adae0'/>
       </function-decl>
-      <function-decl name='devm_regmap_add_irq_chip' mangled-name='devm_regmap_add_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regmap_add_irq_chip'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1'/>
-        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1'/>
-        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='997' column='1'/>
-        <parameter type-id='95e97e5e' name='irq_flags' filepath='drivers/base/regmap/regmap-irq.c' line='998' column='1'/>
-        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/base/regmap/regmap-irq.c' line='998' column='1'/>
-        <parameter type-id='78965926' name='chip' filepath='drivers/base/regmap/regmap-irq.c' line='999' column='1'/>
-        <parameter type-id='a731d0ec' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1000' column='1'/>
+      <function-decl name='devm_regmap_add_irq_chip' mangled-name='devm_regmap_add_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='989' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regmap_add_irq_chip'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/regmap/regmap-irq.c' line='989' column='1'/>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap-irq.c' line='989' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='989' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_flags' filepath='drivers/base/regmap/regmap-irq.c' line='990' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/base/regmap/regmap-irq.c' line='990' column='1'/>
+        <parameter type-id='78965926' name='chip' filepath='drivers/base/regmap/regmap-irq.c' line='991' column='1'/>
+        <parameter type-id='a731d0ec' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='992' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_regmap_field_alloc' mangled-name='devm_regmap_field_alloc' filepath='drivers/base/regmap/regmap.c' line='1259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regmap_field_alloc'>
@@ -115585,15 +110967,15 @@
         <parameter type-id='d7d5e052' name='reg_field' filepath='drivers/base/regmap/regmap.c' line='1260' column='1'/>
         <return type-id='476eb32c'/>
       </function-decl>
-      <function-decl name='devm_regulator_bulk_get' mangled-name='devm_regulator_bulk_get' filepath='include/linux/regulator/consumer.h' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_bulk_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='776946b4'/>
+      <function-decl name='devm_regulator_bulk_get' mangled-name='devm_regulator_bulk_get' filepath='drivers/regulator/devres.c' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_bulk_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/devres.c' line='145' column='1'/>
+        <parameter type-id='95e97e5e' name='num_consumers' filepath='drivers/regulator/devres.c' line='145' column='1'/>
+        <parameter type-id='776946b4' name='consumers' filepath='drivers/regulator/devres.c' line='146' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_regulator_get' mangled-name='devm_regulator_get' filepath='include/linux/regulator/consumer.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='devm_regulator_get' mangled-name='devm_regulator_get' filepath='drivers/regulator/devres.c' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/regulator/devres.c' line='51' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/regulator/devres.c' line='51' column='1'/>
         <return type-id='850c13f6'/>
       </function-decl>
       <function-decl name='devm_regulator_get_exclusive' mangled-name='devm_regulator_get_exclusive' filepath='drivers/regulator/devres.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_regulator_get_exclusive'>
@@ -115625,14 +111007,14 @@
         <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/devres.c' line='101' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_request_threaded_irq' mangled-name='devm_request_threaded_irq' filepath='include/linux/interrupt.h' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_request_threaded_irq'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='29591c9a'/>
-        <parameter type-id='29591c9a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devm_request_threaded_irq' mangled-name='devm_request_threaded_irq' filepath='kernel/irq/devres.c' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_request_threaded_irq'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/irq/devres.c' line='51' column='1'/>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/devres.c' line='51' column='1'/>
+        <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/devres.c' line='52' column='1'/>
+        <parameter type-id='29591c9a' name='thread_fn' filepath='kernel/irq/devres.c' line='52' column='1'/>
+        <parameter type-id='7359adad' name='irqflags' filepath='kernel/irq/devres.c' line='53' column='1'/>
+        <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/devres.c' line='53' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/devres.c' line='54' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_reset_control_array_get' mangled-name='devm_reset_control_array_get' filepath='drivers/reset/core.c' line='926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_reset_control_array_get'>
@@ -115663,16 +111045,16 @@
         <parameter type-id='f0981eeb' name='flags' filepath='sound/soc/soc-devres.c' line='140' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_snd_soc_register_card' mangled-name='devm_snd_soc_register_card' filepath='include/sound/soc.h' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_card'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='3059cd0b'/>
+      <function-decl name='devm_snd_soc_register_card' mangled-name='devm_snd_soc_register_card' filepath='sound/soc/soc-devres.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_card'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-devres.c' line='102' column='1'/>
+        <parameter type-id='3059cd0b' name='card' filepath='sound/soc/soc-devres.c' line='102' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devm_snd_soc_register_component' mangled-name='devm_snd_soc_register_component' filepath='include/sound/soc.h' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_component'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='f030c2b8'/>
-        <parameter type-id='763d26a2'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='devm_snd_soc_register_component' mangled-name='devm_snd_soc_register_component' filepath='sound/soc/soc-devres.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_snd_soc_register_component'>
+        <parameter type-id='fa0b179b' name='dev' filepath='sound/soc/soc-devres.c' line='66' column='1'/>
+        <parameter type-id='f030c2b8' name='cmpnt_drv' filepath='sound/soc/soc-devres.c' line='67' column='1'/>
+        <parameter type-id='763d26a2' name='dai_drv' filepath='sound/soc/soc-devres.c' line='68' column='1'/>
+        <parameter type-id='95e97e5e' name='num_dai' filepath='sound/soc/soc-devres.c' line='68' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='devm_spi_register_controller' mangled-name='devm_spi_register_controller' filepath='drivers/spi/spi.c' line='2828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devm_spi_register_controller'>
@@ -115711,39 +111093,39 @@
         <parameter type-id='7bf5a5e5' name='wdd' filepath='drivers/watchdog/watchdog_core.c' line='382' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='devres_add' mangled-name='devres_add' filepath='include/linux/device.h' line='190' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_add'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devres_add' mangled-name='devres_add' filepath='drivers/base/devres.c' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_add'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='245' column='1'/>
+        <parameter type-id='eaa32e2f' name='res' filepath='drivers/base/devres.c' line='245' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='devres_alloc_node' mangled-name='devres_alloc_node' filepath='include/linux/device.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_alloc_node'>
-        <parameter type-id='b6609e5b'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='devres_alloc_node' mangled-name='devres_alloc_node' filepath='drivers/base/devres.c' line='165' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_alloc_node'>
+        <parameter type-id='b6609e5b' name='release' filepath='drivers/base/devres.c' line='165' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/base/devres.c' line='165' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/base/devres.c' line='165' column='1'/>
+        <parameter type-id='95e97e5e' name='nid' filepath='drivers/base/devres.c' line='165' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='devres_free' mangled-name='devres_free' filepath='include/linux/device.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_free'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devres_free' mangled-name='devres_free' filepath='drivers/base/devres.c' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_free'>
+        <parameter type-id='eaa32e2f' name='res' filepath='drivers/base/devres.c' line='225' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='devres_release' mangled-name='devres_release' filepath='include/linux/device.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_release'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b6609e5b'/>
-        <parameter type-id='4a798fcf'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='devres_release' mangled-name='devres_release' filepath='drivers/base/devres.c' line='422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='devres_release'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/devres.c' line='422' column='1'/>
+        <parameter type-id='b6609e5b' name='release' filepath='drivers/base/devres.c' line='422' column='1'/>
+        <parameter type-id='4a798fcf' name='match' filepath='drivers/base/devres.c' line='423' column='1'/>
+        <parameter type-id='eaa32e2f' name='match_data' filepath='drivers/base/devres.c' line='423' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='disable_irq' mangled-name='disable_irq' filepath='kernel/irq/manage.c' line='622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_irq'>
         <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='622' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='disable_irq_nosync' mangled-name='disable_irq_nosync' filepath='include/linux/interrupt.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_irq_nosync'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='disable_irq_nosync' mangled-name='disable_irq_nosync' filepath='kernel/irq/manage.c' line='604' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_irq_nosync'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='604' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='disable_percpu_irq' mangled-name='disable_percpu_irq' filepath='include/linux/interrupt.h' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_percpu_irq'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='disable_percpu_irq' mangled-name='disable_percpu_irq' filepath='kernel/irq/manage.c' line='2300' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disable_percpu_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2300' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='disk_end_io_acct' mangled-name='disk_end_io_acct' filepath='block/blk-core.c' line='1379' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='disk_end_io_acct'>
@@ -115842,9 +111224,9 @@
         <parameter type-id='f0981eeb' name='len' filepath='drivers/dma-buf/dma-buf.c' line='1158' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_buf_detach' mangled-name='dma_buf_detach' filepath='include/linux/dma-buf.h' line='595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_detach'>
-        <parameter type-id='5e4f599b'/>
-        <parameter type-id='e68e04c1'/>
+      <function-decl name='dma_buf_detach' mangled-name='dma_buf_detach' filepath='drivers/dma-buf/dma-buf.c' line='831' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_detach'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='831' column='1'/>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/dma-buf/dma-buf.c' line='831' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dma_buf_end_cpu_access' mangled-name='dma_buf_end_cpu_access' filepath='drivers/dma-buf/dma-buf.c' line='1192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_end_cpu_access'>
@@ -115859,74 +111241,74 @@
         <parameter type-id='f0981eeb' name='len' filepath='drivers/dma-buf/dma-buf.c' line='1208' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_buf_export' mangled-name='dma_buf_export' filepath='include/linux/dma-buf.h' line='600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_export'>
-        <parameter type-id='aecb451e'/>
+      <function-decl name='dma_buf_export' mangled-name='dma_buf_export' filepath='drivers/dma-buf/dma-buf.c' line='546' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_export'>
+        <parameter type-id='aecb451e' name='exp_info' filepath='drivers/dma-buf/dma-buf.c' line='546' column='1'/>
         <return type-id='5e4f599b'/>
       </function-decl>
-      <function-decl name='dma_buf_fd' mangled-name='dma_buf_fd' filepath='include/linux/dma-buf.h' line='602' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_fd'>
-        <parameter type-id='5e4f599b'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='dma_buf_fd' mangled-name='dma_buf_fd' filepath='drivers/dma-buf/dma-buf.c' line='645' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_fd'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='645' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='drivers/dma-buf/dma-buf.c' line='645' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_buf_get' mangled-name='dma_buf_get' filepath='include/linux/dma-buf.h' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_get'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='dma_buf_get' mangled-name='dma_buf_get' filepath='drivers/dma-buf/dma-buf.c' line='670' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_get'>
+        <parameter type-id='95e97e5e' name='fd' filepath='drivers/dma-buf/dma-buf.c' line='670' column='1'/>
         <return type-id='5e4f599b'/>
       </function-decl>
-      <function-decl name='dma_buf_map_attachment' mangled-name='dma_buf_map_attachment' filepath='include/linux/dma-buf.h' line='606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_map_attachment'>
-        <parameter type-id='e68e04c1'/>
-        <parameter type-id='eea6b025'/>
+      <function-decl name='dma_buf_map_attachment' mangled-name='dma_buf_map_attachment' filepath='drivers/dma-buf/dma-buf.c' line='911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_map_attachment'>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/dma-buf/dma-buf.c' line='911' column='1'/>
+        <parameter type-id='eea6b025' name='direction' filepath='drivers/dma-buf/dma-buf.c' line='912' column='1'/>
         <return type-id='4adb0e6a'/>
       </function-decl>
-      <function-decl name='dma_buf_mmap' mangled-name='dma_buf_mmap' filepath='include/linux/dma-buf.h' line='622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_mmap'>
-        <parameter type-id='5e4f599b'/>
-        <parameter type-id='2ae08426'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='dma_buf_mmap' mangled-name='dma_buf_mmap' filepath='drivers/dma-buf/dma-buf.c' line='1236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_mmap'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1236' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/dma-buf/dma-buf.c' line='1236' column='1'/>
+        <parameter type-id='7359adad' name='pgoff' filepath='drivers/dma-buf/dma-buf.c' line='1237' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_buf_put' mangled-name='dma_buf_put' filepath='include/linux/dma-buf.h' line='604' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_put'>
-        <parameter type-id='5e4f599b'/>
+      <function-decl name='dma_buf_put' mangled-name='dma_buf_put' filepath='drivers/dma-buf/dma-buf.c' line='698' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_put'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='698' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dma_buf_unmap_attachment' mangled-name='dma_buf_unmap_attachment' filepath='include/linux/dma-buf.h' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_unmap_attachment'>
-        <parameter type-id='e68e04c1'/>
-        <parameter type-id='4adb0e6a'/>
-        <parameter type-id='eea6b025'/>
+      <function-decl name='dma_buf_unmap_attachment' mangled-name='dma_buf_unmap_attachment' filepath='drivers/dma-buf/dma-buf.c' line='973' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_unmap_attachment'>
+        <parameter type-id='e68e04c1' name='attach' filepath='drivers/dma-buf/dma-buf.c' line='973' column='1'/>
+        <parameter type-id='4adb0e6a' name='sg_table' filepath='drivers/dma-buf/dma-buf.c' line='974' column='1'/>
+        <parameter type-id='eea6b025' name='direction' filepath='drivers/dma-buf/dma-buf.c' line='975' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dma_buf_vmap' mangled-name='dma_buf_vmap' filepath='include/linux/dma-buf.h' line='624' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_vmap'>
-        <parameter type-id='5e4f599b'/>
+      <function-decl name='dma_buf_vmap' mangled-name='dma_buf_vmap' filepath='drivers/dma-buf/dma-buf.c' line='1290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_vmap'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1290' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='dma_buf_vunmap' mangled-name='dma_buf_vunmap' filepath='include/linux/dma-buf.h' line='625' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_vunmap'>
-        <parameter type-id='5e4f599b'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='dma_buf_vunmap' mangled-name='dma_buf_vunmap' filepath='drivers/dma-buf/dma-buf.c' line='1330' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_buf_vunmap'>
+        <parameter type-id='5e4f599b' name='dmabuf' filepath='drivers/dma-buf/dma-buf.c' line='1330' column='1'/>
+        <parameter type-id='eaa32e2f' name='vaddr' filepath='drivers/dma-buf/dma-buf.c' line='1330' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='dma_contiguous_default_area' type-id='6f67b38a' mangled-name='dma_contiguous_default_area' visibility='default' filepath='kernel/dma/contiguous.c' line='60' column='1' elf-symbol-id='dma_contiguous_default_area'/>
-      <function-decl name='dma_direct_alloc' mangled-name='dma_direct_alloc' filepath='include/linux/dma-direct.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_alloc'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='e835b5d8'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='dma_direct_alloc' mangled-name='dma_direct_alloc' filepath='kernel/dma/direct.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_alloc'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/direct.c' line='153' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/direct.c' line='153' column='1'/>
+        <parameter type-id='e835b5d8' name='dma_handle' filepath='kernel/dma/direct.c' line='154' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='kernel/dma/direct.c' line='154' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/direct.c' line='154' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='dma_direct_free' mangled-name='dma_direct_free' filepath='include/linux/dma-direct.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_free'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='cf29c9b3'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='dma_direct_free' mangled-name='dma_direct_free' filepath='kernel/dma/direct.c' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_free'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/direct.c' line='269' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/direct.c' line='269' column='1'/>
+        <parameter type-id='eaa32e2f' name='cpu_addr' filepath='kernel/dma/direct.c' line='270' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_addr' filepath='kernel/dma/direct.c' line='270' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/direct.c' line='270' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dma_fence_add_callback' mangled-name='dma_fence_add_callback' filepath='include/linux/dma-fence.h' line='380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_add_callback'>
-        <parameter type-id='28271da3'/>
-        <parameter type-id='a47516e5'/>
-        <parameter type-id='9c175524'/>
+      <function-decl name='dma_fence_add_callback' mangled-name='dma_fence_add_callback' filepath='drivers/dma-buf/dma-fence.c' line='612' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_add_callback'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='612' column='1'/>
+        <parameter type-id='a47516e5' name='cb' filepath='drivers/dma-buf/dma-fence.c' line='612' column='1'/>
+        <parameter type-id='9c175524' name='func' filepath='drivers/dma-buf/dma-fence.c' line='613' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_fence_context_alloc' mangled-name='dma_fence_context_alloc' filepath='include/linux/dma-fence.h' line='590' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_context_alloc'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='dma_fence_context_alloc' mangled-name='dma_fence_context_alloc' filepath='drivers/dma-buf/dma-fence.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_context_alloc'>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/dma-buf/dma-fence.c' line='152' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
       <function-decl name='dma_fence_default_wait' mangled-name='dma_fence_default_wait' filepath='drivers/dma-buf/dma-fence.c' line='730' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_default_wait'>
@@ -115943,12 +111325,12 @@
         <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='654' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_fence_init' mangled-name='dma_fence_init' filepath='include/linux/dma-fence.h' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_init'>
-        <parameter type-id='28271da3'/>
-        <parameter type-id='13d85783'/>
-        <parameter type-id='cff2d845'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='91ce1af9'/>
+      <function-decl name='dma_fence_init' mangled-name='dma_fence_init' filepath='drivers/dma-buf/dma-fence.c' line='904' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_init'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='904' column='1'/>
+        <parameter type-id='13d85783' name='ops' filepath='drivers/dma-buf/dma-fence.c' line='904' column='1'/>
+        <parameter type-id='cff2d845' name='lock' filepath='drivers/dma-buf/dma-fence.c' line='905' column='1'/>
+        <parameter type-id='91ce1af9' name='context' filepath='drivers/dma-buf/dma-fence.c' line='905' column='1'/>
+        <parameter type-id='91ce1af9' name='seqno' filepath='drivers/dma-buf/dma-fence.c' line='905' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dma_fence_match_context' mangled-name='dma_fence_match_context' filepath='drivers/dma-buf/dma-fence-array.c' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_match_context'>
@@ -115960,23 +111342,23 @@
         <parameter type-id='aa29ecab' name='kref' filepath='drivers/dma-buf/dma-fence.c' line='494' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dma_fence_remove_callback' mangled-name='dma_fence_remove_callback' filepath='include/linux/dma-fence.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_remove_callback'>
-        <parameter type-id='28271da3'/>
-        <parameter type-id='a47516e5'/>
+      <function-decl name='dma_fence_remove_callback' mangled-name='dma_fence_remove_callback' filepath='drivers/dma-buf/dma-fence.c' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_remove_callback'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='686' column='1'/>
+        <parameter type-id='a47516e5' name='cb' filepath='drivers/dma-buf/dma-fence.c' line='686' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='dma_fence_signal' mangled-name='dma_fence_signal' filepath='include/linux/dma-fence.h' line='373' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_signal'>
-        <parameter type-id='28271da3'/>
+      <function-decl name='dma_fence_signal' mangled-name='dma_fence_signal' filepath='drivers/dma-buf/dma-fence.c' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_signal'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='426' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='dma_fence_signal_locked' mangled-name='dma_fence_signal_locked' filepath='drivers/dma-buf/dma-fence.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_signal_locked'>
         <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='407' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_fence_wait_timeout' mangled-name='dma_fence_wait_timeout' filepath='include/linux/dma-fence.h' line='554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_wait_timeout'>
-        <parameter type-id='28271da3'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='dma_fence_wait_timeout' mangled-name='dma_fence_wait_timeout' filepath='drivers/dma-buf/dma-fence.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_wait_timeout'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-fence.c' line='466' column='1'/>
+        <parameter type-id='b50a4934' name='intr' filepath='drivers/dma-buf/dma-fence.c' line='466' column='1'/>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='drivers/dma-buf/dma-fence.c' line='466' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='dma_free_attrs' mangled-name='dma_free_attrs' filepath='kernel/dma/mapping.c' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_free_attrs'>
@@ -116119,31 +111501,31 @@
         <parameter type-id='80f4b756' name='name' filepath='drivers/dma/dmaengine.c' line='813' column='1'/>
         <return type-id='27f3f5d8'/>
       </function-decl>
-      <function-decl name='dma_resv_add_excl_fence' mangled-name='dma_resv_add_excl_fence' filepath='include/linux/dma-resv.h' line='279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_add_excl_fence'>
-        <parameter type-id='340cea9c'/>
-        <parameter type-id='28271da3'/>
+      <function-decl name='dma_resv_add_excl_fence' mangled-name='dma_resv_add_excl_fence' filepath='drivers/dma-buf/dma-resv.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_add_excl_fence'>
+        <parameter type-id='340cea9c' name='obj' filepath='drivers/dma-buf/dma-resv.c' line='308' column='1'/>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-resv.c' line='308' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dma_resv_add_shared_fence' mangled-name='dma_resv_add_shared_fence' filepath='include/linux/dma-resv.h' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_add_shared_fence'>
-        <parameter type-id='340cea9c'/>
-        <parameter type-id='28271da3'/>
+      <function-decl name='dma_resv_add_shared_fence' mangled-name='dma_resv_add_shared_fence' filepath='drivers/dma-buf/dma-resv.c' line='263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_add_shared_fence'>
+        <parameter type-id='340cea9c' name='obj' filepath='drivers/dma-buf/dma-resv.c' line='263' column='1'/>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/dma-resv.c' line='263' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dma_resv_reserve_shared' mangled-name='dma_resv_reserve_shared' filepath='include/linux/dma-resv.h' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_reserve_shared'>
-        <parameter type-id='340cea9c'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='dma_resv_reserve_shared' mangled-name='dma_resv_reserve_shared' filepath='drivers/dma-buf/dma-resv.c' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_reserve_shared'>
+        <parameter type-id='340cea9c' name='obj' filepath='drivers/dma-buf/dma-resv.c' line='187' column='1'/>
+        <parameter type-id='f0981eeb' name='num_fences' filepath='drivers/dma-buf/dma-resv.c' line='187' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dma_resv_test_signaled_rcu' mangled-name='dma_resv_test_signaled_rcu' filepath='include/linux/dma-resv.h' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_test_signaled_rcu'>
-        <parameter type-id='340cea9c'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='dma_resv_test_signaled_rcu' mangled-name='dma_resv_test_signaled_rcu' filepath='drivers/dma-buf/dma-resv.c' line='634' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_test_signaled_rcu'>
+        <parameter type-id='340cea9c' name='obj' filepath='drivers/dma-buf/dma-resv.c' line='634' column='1'/>
+        <parameter type-id='b50a4934' name='test_all' filepath='drivers/dma-buf/dma-resv.c' line='634' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='dma_resv_wait_timeout_rcu' mangled-name='dma_resv_wait_timeout_rcu' filepath='include/linux/dma-resv.h' line='288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_wait_timeout_rcu'>
-        <parameter type-id='340cea9c'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='dma_resv_wait_timeout_rcu' mangled-name='dma_resv_wait_timeout_rcu' filepath='drivers/dma-buf/dma-resv.c' line='532' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_resv_wait_timeout_rcu'>
+        <parameter type-id='340cea9c' name='obj' filepath='drivers/dma-buf/dma-resv.c' line='532' column='1'/>
+        <parameter type-id='b50a4934' name='wait_all' filepath='drivers/dma-buf/dma-resv.c' line='533' column='1'/>
+        <parameter type-id='b50a4934' name='intr' filepath='drivers/dma-buf/dma-resv.c' line='533' column='1'/>
+        <parameter type-id='7359adad' name='timeout' filepath='drivers/dma-buf/dma-resv.c' line='534' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='dma_set_coherent_mask' mangled-name='dma_set_coherent_mask' filepath='kernel/dma/mapping.c' line='597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_set_coherent_mask'>
@@ -116257,8 +111639,8 @@
         <parameter type-id='572fbdca' name='tty' filepath='drivers/tty/tty_io.c' line='3042' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='do_exit' mangled-name='do_exit' filepath='include/linux/kernel.h' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_exit'>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='do_exit' mangled-name='do_exit' filepath='kernel/exit.c' line='715' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_exit'>
+        <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='715' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='do_wait_intr_irq' mangled-name='do_wait_intr_irq' filepath='kernel/sched/wait.c' line='351' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_wait_intr_irq'>
@@ -116274,12 +111656,12 @@
         <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='75' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='down_read' mangled-name='down_read' filepath='include/linux/rwsem.h' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_read'>
-        <parameter type-id='9b58df93'/>
+      <function-decl name='down_read' mangled-name='down_read' filepath='kernel/locking/rwsem.c' line='1511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_read'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1511' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='down_read_trylock' mangled-name='down_read_trylock' filepath='include/linux/rwsem.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_read_trylock'>
-        <parameter type-id='9b58df93'/>
+      <function-decl name='down_read_trylock' mangled-name='down_read_trylock' filepath='kernel/locking/rwsem.c' line='1551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_read_trylock'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1551' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='down_timeout' mangled-name='down_timeout' filepath='kernel/locking/semaphore.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_timeout'>
@@ -116291,25 +111673,25 @@
         <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='130' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='down_write' mangled-name='down_write' filepath='include/linux/rwsem.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_write'>
-        <parameter type-id='9b58df93'/>
+      <function-decl name='down_write' mangled-name='down_write' filepath='kernel/locking/rwsem.c' line='1564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='down_write'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1564' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='downgrade_write' mangled-name='downgrade_write' filepath='kernel/locking/rwsem.c' line='1628' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='downgrade_write'>
         <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1628' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dput' mangled-name='dput' filepath='include/linux/dcache.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dput'>
-        <parameter type-id='27675065'/>
+      <function-decl name='dput' mangled-name='dput' filepath='fs/dcache.c' line='859' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dput'>
+        <parameter type-id='27675065' name='dentry' filepath='fs/dcache.c' line='859' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drain_workqueue' mangled-name='drain_workqueue' filepath='kernel/workqueue.c' line='2959' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drain_workqueue'>
         <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='2959' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='driver_create_file' mangled-name='driver_create_file' filepath='include/linux/device/driver.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_create_file'>
-        <parameter type-id='00c7b870'/>
-        <parameter type-id='1a5996d5'/>
+      <function-decl name='driver_create_file' mangled-name='driver_create_file' filepath='drivers/base/driver.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_create_file'>
+        <parameter type-id='00c7b870' name='drv' filepath='drivers/base/driver.c' line='101' column='1'/>
+        <parameter type-id='1a5996d5' name='attr' filepath='drivers/base/driver.c' line='102' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='driver_find_device' mangled-name='driver_find_device' filepath='drivers/base/driver.c' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_find_device'>
@@ -116319,52 +111701,52 @@
         <parameter type-id='92d15ae9' name='match' filepath='drivers/base/driver.c' line='78' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='driver_register' mangled-name='driver_register' filepath='include/linux/device/driver.h' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_register'>
-        <parameter type-id='00c7b870'/>
+      <function-decl name='driver_register' mangled-name='driver_register' filepath='drivers/base/driver.c' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_register'>
+        <parameter type-id='00c7b870' name='drv' filepath='drivers/base/driver.c' line='147' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='driver_remove_file' mangled-name='driver_remove_file' filepath='include/linux/device/driver.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_remove_file'>
-        <parameter type-id='00c7b870'/>
-        <parameter type-id='1a5996d5'/>
+      <function-decl name='driver_remove_file' mangled-name='driver_remove_file' filepath='drivers/base/driver.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_remove_file'>
+        <parameter type-id='00c7b870' name='drv' filepath='drivers/base/driver.c' line='119' column='1'/>
+        <parameter type-id='1a5996d5' name='attr' filepath='drivers/base/driver.c' line='120' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='driver_unregister' mangled-name='driver_unregister' filepath='include/linux/device/driver.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_unregister'>
-        <parameter type-id='00c7b870'/>
+      <function-decl name='driver_unregister' mangled-name='driver_unregister' filepath='drivers/base/driver.c' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='driver_unregister'>
+        <parameter type-id='00c7b870' name='drv' filepath='drivers/base/driver.c' line='191' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_add_edid_modes' mangled-name='drm_add_edid_modes' filepath='include/drm/drm_edid.h' line='491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_edid_modes'>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='c91d1bf1'/>
+      <function-decl name='drm_add_edid_modes' mangled-name='drm_add_edid_modes' filepath='drivers/gpu/drm/drm_edid.c' line='5327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_edid_modes'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_edid.c' line='5327' column='1'/>
+        <parameter type-id='c91d1bf1' name='edid' filepath='drivers/gpu/drm/drm_edid.c' line='5327' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_add_modes_noedid' mangled-name='drm_add_modes_noedid' filepath='include/drm/drm_edid.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_modes_noedid'>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_add_modes_noedid' mangled-name='drm_add_modes_noedid' filepath='drivers/gpu/drm/drm_edid.c' line='5406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_add_modes_noedid'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_edid.c' line='5406' column='1'/>
+        <parameter type-id='95e97e5e' name='hdisplay' filepath='drivers/gpu/drm/drm_edid.c' line='5407' column='1'/>
+        <parameter type-id='95e97e5e' name='vdisplay' filepath='drivers/gpu/drm/drm_edid.c' line='5407' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_add_affected_connectors' mangled-name='drm_atomic_add_affected_connectors' filepath='include/drm/drm_atomic.h' line='676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_add_affected_connectors'>
-        <parameter type-id='e3dd029e'/>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_atomic_add_affected_connectors' mangled-name='drm_atomic_add_affected_connectors' filepath='drivers/gpu/drm/drm_atomic.c' line='1156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_add_affected_connectors'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='1156' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic.c' line='1157' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_add_affected_planes' mangled-name='drm_atomic_add_affected_planes' filepath='include/drm/drm_atomic.h' line='679' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_add_affected_planes'>
-        <parameter type-id='e3dd029e'/>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_atomic_add_affected_planes' mangled-name='drm_atomic_add_affected_planes' filepath='drivers/gpu/drm/drm_atomic.c' line='1219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_add_affected_planes'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='1219' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic.c' line='1220' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_commit' mangled-name='drm_atomic_commit' filepath='include/drm/drm_atomic.h' line='683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_commit'>
-        <parameter type-id='e3dd029e'/>
+      <function-decl name='drm_atomic_commit' mangled-name='drm_atomic_commit' filepath='drivers/gpu/drm/drm_atomic.c' line='1334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_commit'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='1334' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_get_connector_state' mangled-name='drm_atomic_get_connector_state' filepath='include/drm/drm_atomic.h' line='452' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_connector_state'>
-        <parameter type-id='e3dd029e'/>
-        <parameter type-id='4db02c58'/>
+      <function-decl name='drm_atomic_get_connector_state' mangled-name='drm_atomic_get_connector_state' filepath='drivers/gpu/drm/drm_atomic.c' line='944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_connector_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='944' column='1'/>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_atomic.c' line='945' column='1'/>
         <return type-id='249ef586'/>
       </function-decl>
-      <function-decl name='drm_atomic_get_crtc_state' mangled-name='drm_atomic_get_crtc_state' filepath='include/drm/drm_atomic.h' line='446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_crtc_state'>
-        <parameter type-id='e3dd029e'/>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_atomic_get_crtc_state' mangled-name='drm_atomic_get_crtc_state' filepath='drivers/gpu/drm/drm_atomic.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_crtc_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='291' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic.c' line='292' column='1'/>
         <return type-id='35078cb9'/>
       </function-decl>
       <function-decl name='drm_atomic_get_new_connector_for_encoder' mangled-name='drm_atomic_get_new_connector_for_encoder' filepath='drivers/gpu/drm/drm_atomic.c' line='912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_new_connector_for_encoder'>
@@ -116377,14 +111759,14 @@
         <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_atomic.c' line='879' column='1'/>
         <return type-id='4db02c58'/>
       </function-decl>
-      <function-decl name='drm_atomic_get_plane_state' mangled-name='drm_atomic_get_plane_state' filepath='include/drm/drm_atomic.h' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_plane_state'>
-        <parameter type-id='e3dd029e'/>
-        <parameter type-id='a6711537'/>
+      <function-decl name='drm_atomic_get_plane_state' mangled-name='drm_atomic_get_plane_state' filepath='drivers/gpu/drm/drm_atomic.c' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_plane_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='464' column='1'/>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_atomic.c' line='465' column='1'/>
         <return type-id='d0835005'/>
       </function-decl>
-      <function-decl name='drm_atomic_get_private_obj_state' mangled-name='drm_atomic_get_private_obj_state' filepath='include/drm/drm_atomic.h' line='462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_private_obj_state'>
-        <parameter type-id='e3dd029e'/>
-        <parameter type-id='11c98e9a'/>
+      <function-decl name='drm_atomic_get_private_obj_state' mangled-name='drm_atomic_get_private_obj_state' filepath='drivers/gpu/drm/drm_atomic.c' line='770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_get_private_obj_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='770' column='1'/>
+        <parameter type-id='11c98e9a' name='obj' filepath='drivers/gpu/drm/drm_atomic.c' line='771' column='1'/>
         <return type-id='4ea020ae'/>
       </function-decl>
       <function-decl name='drm_atomic_helper_bridge_destroy_state' mangled-name='drm_atomic_helper_bridge_destroy_state' filepath='drivers/gpu/drm/drm_atomic_state_helper.c' line='613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_bridge_destroy_state'>
@@ -116410,13 +111792,13 @@
         <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='606' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_helper_check_plane_state' mangled-name='drm_atomic_helper_check_plane_state' filepath='include/drm/drm_atomic_helper.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check_plane_state'>
-        <parameter type-id='d0835005'/>
-        <parameter type-id='c9982f26'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='drm_atomic_helper_check_plane_state' mangled-name='drm_atomic_helper_check_plane_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='790' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check_plane_state'>
+        <parameter type-id='d0835005' name='plane_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='790' column='1'/>
+        <parameter type-id='c9982f26' name='crtc_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='791' column='1'/>
+        <parameter type-id='95e97e5e' name='min_scale' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='792' column='1'/>
+        <parameter type-id='95e97e5e' name='max_scale' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='793' column='1'/>
+        <parameter type-id='b50a4934' name='can_position' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='794' column='1'/>
+        <parameter type-id='b50a4934' name='can_update_disabled' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='795' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_atomic_helper_check_planes' mangled-name='drm_atomic_helper_check_planes' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='882' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_helper_check_planes'>
@@ -116598,69 +111980,69 @@
         <parameter type-id='e3dd029e' name='old_state' filepath='drivers/gpu/drm/drm_atomic_helper.c' line='1536' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_atomic_nonblocking_commit' mangled-name='drm_atomic_nonblocking_commit' filepath='include/drm/drm_atomic.h' line='684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_nonblocking_commit'>
-        <parameter type-id='e3dd029e'/>
+      <function-decl name='drm_atomic_nonblocking_commit' mangled-name='drm_atomic_nonblocking_commit' filepath='drivers/gpu/drm/drm_atomic.c' line='1363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_nonblocking_commit'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='1363' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_normalize_zpos' mangled-name='drm_atomic_normalize_zpos' filepath='include/drm/drm_blend.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_normalize_zpos'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='e3dd029e'/>
+      <function-decl name='drm_atomic_normalize_zpos' mangled-name='drm_atomic_normalize_zpos' filepath='drivers/gpu/drm/drm_blend.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_normalize_zpos'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_blend.c' line='504' column='1'/>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_blend.c' line='505' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_private_obj_fini' mangled-name='drm_atomic_private_obj_fini' filepath='include/drm/drm_atomic.h' line='459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_private_obj_fini'>
-        <parameter type-id='11c98e9a'/>
+      <function-decl name='drm_atomic_private_obj_fini' mangled-name='drm_atomic_private_obj_fini' filepath='drivers/gpu/drm/drm_atomic.c' line='748' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_private_obj_fini'>
+        <parameter type-id='11c98e9a' name='obj' filepath='drivers/gpu/drm/drm_atomic.c' line='748' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_atomic_private_obj_init' mangled-name='drm_atomic_private_obj_init' filepath='include/drm/drm_atomic.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_private_obj_init'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='11c98e9a'/>
-        <parameter type-id='4ea020ae'/>
-        <parameter type-id='515fa1af'/>
+      <function-decl name='drm_atomic_private_obj_init' mangled-name='drm_atomic_private_obj_init' filepath='drivers/gpu/drm/drm_atomic.c' line='726' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_private_obj_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic.c' line='726' column='1'/>
+        <parameter type-id='11c98e9a' name='obj' filepath='drivers/gpu/drm/drm_atomic.c' line='727' column='1'/>
+        <parameter type-id='4ea020ae' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='728' column='1'/>
+        <parameter type-id='515fa1af' name='funcs' filepath='drivers/gpu/drm/drm_atomic.c' line='729' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_atomic_set_crtc_for_connector' mangled-name='drm_atomic_set_crtc_for_connector' filepath='include/drm/drm_atomic_uapi.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_crtc_for_connector'>
-        <parameter type-id='249ef586'/>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_atomic_set_crtc_for_connector' mangled-name='drm_atomic_set_crtc_for_connector' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_crtc_for_connector'>
+        <parameter type-id='249ef586' name='conn_state' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='296' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='297' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_set_crtc_for_plane' mangled-name='drm_atomic_set_crtc_for_plane' filepath='include/drm/drm_atomic_uapi.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_crtc_for_plane'>
-        <parameter type-id='d0835005'/>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_atomic_set_crtc_for_plane' mangled-name='drm_atomic_set_crtc_for_plane' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_crtc_for_plane'>
+        <parameter type-id='d0835005' name='plane_state' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='177' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='178' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_set_fb_for_plane' mangled-name='drm_atomic_set_fb_for_plane' filepath='include/drm/drm_atomic_uapi.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_fb_for_plane'>
-        <parameter type-id='d0835005'/>
-        <parameter type-id='7b332e1c'/>
+      <function-decl name='drm_atomic_set_fb_for_plane' mangled-name='drm_atomic_set_fb_for_plane' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_fb_for_plane'>
+        <parameter type-id='d0835005' name='plane_state' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='227' column='1'/>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='228' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_atomic_set_mode_prop_for_crtc' mangled-name='drm_atomic_set_mode_prop_for_crtc' filepath='include/drm/drm_atomic_uapi.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_mode_prop_for_crtc'>
-        <parameter type-id='35078cb9'/>
-        <parameter type-id='c4126d52'/>
+      <function-decl name='drm_atomic_set_mode_prop_for_crtc' mangled-name='drm_atomic_set_mode_prop_for_crtc' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_set_mode_prop_for_crtc'>
+        <parameter type-id='35078cb9' name='state' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='114' column='1'/>
+        <parameter type-id='c4126d52' name='blob' filepath='drivers/gpu/drm/drm_atomic_uapi.c' line='115' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_atomic_state_alloc' mangled-name='drm_atomic_state_alloc' filepath='include/drm/drm_atomic.h' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_alloc'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_atomic_state_alloc' mangled-name='drm_atomic_state_alloc' filepath='drivers/gpu/drm/drm_atomic.c' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_alloc'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_atomic.c' line='119' column='1'/>
         <return type-id='e3dd029e'/>
       </function-decl>
-      <function-decl name='drm_atomic_state_clear' mangled-name='drm_atomic_state_clear' filepath='include/drm/drm_atomic.h' line='411' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_clear'>
-        <parameter type-id='e3dd029e'/>
+      <function-decl name='drm_atomic_state_clear' mangled-name='drm_atomic_state_clear' filepath='drivers/gpu/drm/drm_atomic.c' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_atomic_state_clear'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_atomic.c' line='238' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_bridge_add' mangled-name='drm_bridge_add' filepath='include/drm/drm_bridge.h' line='771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_add'>
-        <parameter type-id='8582e5ec'/>
+      <function-decl name='drm_bridge_add' mangled-name='drm_bridge_add' filepath='drivers/gpu/drm/drm_bridge.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_add'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='102' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_bridge_attach' mangled-name='drm_bridge_attach' filepath='include/drm/drm_bridge.h' line='774' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_attach'>
-        <parameter type-id='74d89ebd'/>
-        <parameter type-id='8582e5ec'/>
-        <parameter type-id='8582e5ec'/>
-        <parameter type-id='6a662de1'/>
+      <function-decl name='drm_bridge_attach' mangled-name='drm_bridge_attach' filepath='drivers/gpu/drm/drm_bridge.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_attach'>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_bridge.c' line='175' column='1'/>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='175' column='1'/>
+        <parameter type-id='8582e5ec' name='previous' filepath='drivers/gpu/drm/drm_bridge.c' line='176' column='1'/>
+        <parameter type-id='6a662de1' name='flags' filepath='drivers/gpu/drm/drm_bridge.c' line='177' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_bridge_chain_mode_set' mangled-name='drm_bridge_chain_mode_set' filepath='include/drm/drm_bridge.h' line='845' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_chain_mode_set'>
-        <parameter type-id='8582e5ec'/>
-        <parameter type-id='745b39e8'/>
-        <parameter type-id='745b39e8'/>
+      <function-decl name='drm_bridge_chain_mode_set' mangled-name='drm_bridge_chain_mode_set' filepath='drivers/gpu/drm/drm_bridge.c' line='485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_chain_mode_set'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='485' column='1'/>
+        <parameter type-id='745b39e8' name='mode' filepath='drivers/gpu/drm/drm_bridge.c' line='486' column='1'/>
+        <parameter type-id='745b39e8' name='adjusted_mode' filepath='drivers/gpu/drm/drm_bridge.c' line='487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_bridge_hpd_notify' mangled-name='drm_bridge_hpd_notify' filepath='drivers/gpu/drm/drm_bridge.c' line='1189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_hpd_notify'>
@@ -116668,8 +112050,8 @@
         <parameter type-id='f7b0e1b4' name='status' filepath='drivers/gpu/drm/drm_bridge.c' line='1190' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_bridge_remove' mangled-name='drm_bridge_remove' filepath='include/drm/drm_bridge.h' line='772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_remove'>
-        <parameter type-id='8582e5ec'/>
+      <function-decl name='drm_bridge_remove' mangled-name='drm_bridge_remove' filepath='drivers/gpu/drm/drm_bridge.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_bridge_remove'>
+        <parameter type-id='8582e5ec' name='bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='117' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_compat_ioctl' mangled-name='drm_compat_ioctl' filepath='drivers/gpu/drm/drm_ioc32.c' line='981' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_compat_ioctl'>
@@ -116682,13 +112064,13 @@
         <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='367' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_connector_attach_encoder' mangled-name='drm_connector_attach_encoder' filepath='include/drm/drm_connector.h' line='1525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_attach_encoder'>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='74d89ebd'/>
+      <function-decl name='drm_connector_attach_encoder' mangled-name='drm_connector_attach_encoder' filepath='drivers/gpu/drm/drm_connector.c' line='389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_attach_encoder'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='389' column='1'/>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_connector.c' line='390' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_connector_cleanup' mangled-name='drm_connector_cleanup' filepath='include/drm/drm_connector.h' line='1528' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_cleanup'>
-        <parameter type-id='4db02c58'/>
+      <function-decl name='drm_connector_cleanup' mangled-name='drm_connector_cleanup' filepath='drivers/gpu/drm/drm_connector.c' line='441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_cleanup'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='441' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_connector_has_possible_encoder' mangled-name='drm_connector_has_possible_encoder' filepath='drivers/gpu/drm/drm_connector.c' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_has_possible_encoder'>
@@ -116696,19 +112078,19 @@
         <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_connector.c' line='422' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='drm_connector_init' mangled-name='drm_connector_init' filepath='include/drm/drm_connector.h' line='1513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_init'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='3fb29739'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_connector_init' mangled-name='drm_connector_init' filepath='drivers/gpu/drm/drm_connector.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_connector.c' line='217' column='1'/>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='218' column='1'/>
+        <parameter type-id='3fb29739' name='funcs' filepath='drivers/gpu/drm/drm_connector.c' line='219' column='1'/>
+        <parameter type-id='95e97e5e' name='connector_type' filepath='drivers/gpu/drm/drm_connector.c' line='220' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_connector_init_with_ddc' mangled-name='drm_connector_init_with_ddc' filepath='include/drm/drm_connector.h' line='1517' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_init_with_ddc'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='3fb29739'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='b9af02c3'/>
+      <function-decl name='drm_connector_init_with_ddc' mangled-name='drm_connector_init_with_ddc' filepath='drivers/gpu/drm/drm_connector.c' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_init_with_ddc'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_connector.c' line='340' column='1'/>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='341' column='1'/>
+        <parameter type-id='3fb29739' name='funcs' filepath='drivers/gpu/drm/drm_connector.c' line='342' column='1'/>
+        <parameter type-id='95e97e5e' name='connector_type' filepath='drivers/gpu/drm/drm_connector.c' line='343' column='1'/>
+        <parameter type-id='b9af02c3' name='ddc' filepath='drivers/gpu/drm/drm_connector.c' line='344' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_connector_list_iter_begin' mangled-name='drm_connector_list_iter_begin' filepath='drivers/gpu/drm/drm_connector.c' line='657' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_begin'>
@@ -116716,16 +112098,16 @@
         <parameter type-id='40a902ec' name='iter' filepath='drivers/gpu/drm/drm_connector.c' line='658' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_connector_list_iter_end' mangled-name='drm_connector_list_iter_end' filepath='include/drm/drm_connector.h' line='1696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_end'>
-        <parameter type-id='40a902ec'/>
+      <function-decl name='drm_connector_list_iter_end' mangled-name='drm_connector_list_iter_end' filepath='drivers/gpu/drm/drm_connector.c' line='732' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_end'>
+        <parameter type-id='40a902ec' name='iter' filepath='drivers/gpu/drm/drm_connector.c' line='732' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_connector_list_iter_next' mangled-name='drm_connector_list_iter_next' filepath='include/drm/drm_connector.h' line='1695' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_next'>
-        <parameter type-id='40a902ec'/>
+      <function-decl name='drm_connector_list_iter_next' mangled-name='drm_connector_list_iter_next' filepath='drivers/gpu/drm/drm_connector.c' line='693' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_list_iter_next'>
+        <parameter type-id='40a902ec' name='iter' filepath='drivers/gpu/drm/drm_connector.c' line='693' column='1'/>
         <return type-id='4db02c58'/>
       </function-decl>
-      <function-decl name='drm_connector_register' mangled-name='drm_connector_register' filepath='include/drm/drm_connector.h' line='1523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_register'>
-        <parameter type-id='4db02c58'/>
+      <function-decl name='drm_connector_register' mangled-name='drm_connector_register' filepath='drivers/gpu/drm/drm_connector.c' line='502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_register'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='502' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_connector_set_panel_orientation' mangled-name='drm_connector_set_panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_set_panel_orientation'>
@@ -116733,13 +112115,13 @@
         <parameter type-id='59f3d325' name='panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2184' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_connector_unregister' mangled-name='drm_connector_unregister' filepath='include/drm/drm_connector.h' line='1524' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_unregister'>
-        <parameter type-id='4db02c58'/>
+      <function-decl name='drm_connector_unregister' mangled-name='drm_connector_unregister' filepath='drivers/gpu/drm/drm_connector.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_unregister'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='552' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_connector_update_edid_property' mangled-name='drm_connector_update_edid_property' filepath='include/drm/drm_connector.h' line='1637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_update_edid_property'>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='776adf76'/>
+      <function-decl name='drm_connector_update_edid_property' mangled-name='drm_connector_update_edid_property' filepath='drivers/gpu/drm/drm_connector.c' line='2022' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_update_edid_property'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='2022' column='1'/>
+        <parameter type-id='776adf76' name='edid' filepath='drivers/gpu/drm/drm_connector.c' line='2023' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_crtc_arm_vblank_event' mangled-name='drm_crtc_arm_vblank_event' filepath='drivers/gpu/drm/drm_vblank.c' line='1051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_arm_vblank_event'>
@@ -116762,19 +112144,19 @@
         <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1993' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='drm_crtc_init_with_planes' mangled-name='drm_crtc_init_with_planes' filepath='include/drm/drm_crtc.h' line='1205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_init_with_planes'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='b64ad7cb'/>
-        <parameter type-id='a6711537'/>
-        <parameter type-id='a6711537'/>
-        <parameter type-id='7236c5c8'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='drm_crtc_init_with_planes' mangled-name='drm_crtc_init_with_planes' filepath='drivers/gpu/drm/drm_crtc.c' line='253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_init_with_planes'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_crtc.c' line='253' column='1'/>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_crtc.c' line='253' column='1'/>
+        <parameter type-id='a6711537' name='primary' filepath='drivers/gpu/drm/drm_crtc.c' line='254' column='1'/>
+        <parameter type-id='a6711537' name='cursor' filepath='drivers/gpu/drm/drm_crtc.c' line='255' column='1'/>
+        <parameter type-id='7236c5c8' name='funcs' filepath='drivers/gpu/drm/drm_crtc.c' line='256' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_crtc.c' line='257' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_crtc_send_vblank_event' mangled-name='drm_crtc_send_vblank_event' filepath='include/drm/drm_vblank.h' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_send_vblank_event'>
-        <parameter type-id='b64ad7cb'/>
-        <parameter type-id='6301fad2'/>
+      <function-decl name='drm_crtc_send_vblank_event' mangled-name='drm_crtc_send_vblank_event' filepath='drivers/gpu/drm/drm_vblank.c' line='1076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_send_vblank_event'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1076' column='1'/>
+        <parameter type-id='6301fad2' name='e' filepath='drivers/gpu/drm/drm_vblank.c' line='1077' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_crtc_set_max_vblank_count' mangled-name='drm_crtc_set_max_vblank_count' filepath='drivers/gpu/drm/drm_vblank.c' line='1409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_set_max_vblank_count'>
@@ -116787,8 +112169,8 @@
         <parameter type-id='44372936' name='vblanktime' filepath='drivers/gpu/drm/drm_vblank.c' line='970' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='drm_crtc_vblank_get' mangled-name='drm_crtc_vblank_get' filepath='include/drm/drm_vblank.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_get'>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_crtc_vblank_get' mangled-name='drm_crtc_vblank_get' filepath='drivers/gpu/drm/drm_vblank.c' line='1188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_get'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1188' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_crtc_vblank_helper_get_vblank_timestamp' mangled-name='drm_crtc_vblank_helper_get_vblank_timestamp' filepath='drivers/gpu/drm/drm_vblank.c' line='829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_helper_get_vblank_timestamp'>
@@ -116806,12 +112188,12 @@
         <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1433' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_crtc_vblank_put' mangled-name='drm_crtc_vblank_put' filepath='include/drm/drm_vblank.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_put'>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_crtc_vblank_put' mangled-name='drm_crtc_vblank_put' filepath='drivers/gpu/drm/drm_vblank.c' line='1223' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_vblank_put'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1223' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_crtc_wait_one_vblank' mangled-name='drm_crtc_wait_one_vblank' filepath='include/drm/drm_vblank.h' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_wait_one_vblank'>
-        <parameter type-id='b64ad7cb'/>
+      <function-decl name='drm_crtc_wait_one_vblank' mangled-name='drm_crtc_wait_one_vblank' filepath='drivers/gpu/drm/drm_vblank.c' line='1274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_crtc_wait_one_vblank'>
+        <parameter type-id='b64ad7cb' name='crtc' filepath='drivers/gpu/drm/drm_vblank.c' line='1274' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_cvt_mode' mangled-name='drm_cvt_mode' filepath='drivers/gpu/drm/drm_modes.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_cvt_mode'>
@@ -116824,19 +112206,19 @@
         <parameter type-id='b50a4934' name='margins' filepath='drivers/gpu/drm/drm_modes.c' line='142' column='1'/>
         <return type-id='11e02f83'/>
       </function-decl>
-      <function-decl name='drm_debugfs_create_files' mangled-name='drm_debugfs_create_files' filepath='include/drm/drm_debugfs.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_debugfs_create_files'>
-        <parameter type-id='09894807'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='27675065'/>
-        <parameter type-id='6c3b3f8e'/>
+      <function-decl name='drm_debugfs_create_files' mangled-name='drm_debugfs_create_files' filepath='drivers/gpu/drm/drm_debugfs.c' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_debugfs_create_files'>
+        <parameter type-id='09894807' name='files' filepath='drivers/gpu/drm/drm_debugfs.c' line='176' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/gpu/drm/drm_debugfs.c' line='176' column='1'/>
+        <parameter type-id='27675065' name='root' filepath='drivers/gpu/drm/drm_debugfs.c' line='177' column='1'/>
+        <parameter type-id='6c3b3f8e' name='minor' filepath='drivers/gpu/drm/drm_debugfs.c' line='177' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_detect_hdmi_monitor' mangled-name='drm_detect_hdmi_monitor' filepath='drivers/gpu/drm/drm_edid.c' line='4760' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_hdmi_monitor'>
         <parameter type-id='c91d1bf1' name='edid' filepath='drivers/gpu/drm/drm_edid.c' line='4760' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='drm_detect_monitor_audio' mangled-name='drm_detect_monitor_audio' filepath='include/drm/drm_edid.h' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_monitor_audio'>
-        <parameter type-id='c91d1bf1'/>
+      <function-decl name='drm_detect_monitor_audio' mangled-name='drm_detect_monitor_audio' filepath='drivers/gpu/drm/drm_edid.c' line='4798' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_detect_monitor_audio'>
+        <parameter type-id='c91d1bf1' name='edid' filepath='drivers/gpu/drm/drm_edid.c' line='4798' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='drm_dev_alloc' mangled-name='drm_dev_alloc' filepath='drivers/gpu/drm/drm_drv.c' line='719' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_alloc'>
@@ -116844,24 +112226,24 @@
         <parameter type-id='fa0b179b' name='parent' filepath='drivers/gpu/drm/drm_drv.c' line='720' column='1'/>
         <return type-id='8898134d'/>
       </function-decl>
-      <function-decl name='drm_dev_dbg' mangled-name='drm_dev_dbg' filepath='include/drm/drm_print.h' line='337' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_dbg'>
-        <parameter type-id='8df61054'/>
-        <parameter type-id='189697ba'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='drm_dev_dbg' mangled-name='drm_dev_dbg' filepath='drivers/gpu/drm/drm_print.c' line='259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_dbg'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/gpu/drm/drm_print.c' line='259' column='1'/>
+        <parameter type-id='189697ba' name='category' filepath='drivers/gpu/drm/drm_print.c' line='259' column='1'/>
+        <parameter type-id='80f4b756' name='format' filepath='drivers/gpu/drm/drm_print.c' line='260' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_dev_enter' mangled-name='drm_dev_enter' filepath='include/drm/drm_drv.h' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_enter'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='drm_dev_enter' mangled-name='drm_dev_enter' filepath='drivers/gpu/drm/drm_drv.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_enter'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='424' column='1'/>
+        <parameter type-id='7292109c' name='idx' filepath='drivers/gpu/drm/drm_drv.c' line='424' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='drm_dev_exit' mangled-name='drm_dev_exit' filepath='include/drm/drm_drv.h' line='643' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_exit'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_dev_exit' mangled-name='drm_dev_exit' filepath='drivers/gpu/drm/drm_drv.c' line='444' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_exit'>
+        <parameter type-id='95e97e5e' name='idx' filepath='drivers/gpu/drm/drm_drv.c' line='444' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_dev_get' mangled-name='drm_dev_get' filepath='include/drm/drm_drv.h' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_get'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_dev_get' mangled-name='drm_dev_get' filepath='drivers/gpu/drm/drm_drv.c' line='765' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_get'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_drv.c' line='765' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_dev_printk' mangled-name='drm_dev_printk' filepath='drivers/gpu/drm/drm_print.c' line='238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_dev_printk'>
@@ -116987,12 +112369,12 @@
         <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_encoder.c' line='161' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_encoder_init' mangled-name='drm_encoder_init' filepath='include/drm/drm_encoder.h' line='193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_encoder_init'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='74d89ebd'/>
-        <parameter type-id='1701f1ac'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='drm_encoder_init' mangled-name='drm_encoder_init' filepath='drivers/gpu/drm/drm_encoder.c' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_encoder_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_encoder.c' line='109' column='1'/>
+        <parameter type-id='74d89ebd' name='encoder' filepath='drivers/gpu/drm/drm_encoder.c' line='110' column='1'/>
+        <parameter type-id='1701f1ac' name='funcs' filepath='drivers/gpu/drm/drm_encoder.c' line='111' column='1'/>
+        <parameter type-id='95e97e5e' name='encoder_type' filepath='drivers/gpu/drm/drm_encoder.c' line='112' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_encoder.c' line='112' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
@@ -117037,10 +112419,10 @@
         <parameter type-id='19c2251e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='312' column='1'/>
         <return type-id='f10b2208'/>
       </function-decl>
-      <function-decl name='drm_framebuffer_init' mangled-name='drm_framebuffer_init' filepath='include/drm/drm_framebuffer.h' line='218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_framebuffer_init'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='7b332e1c'/>
-        <parameter type-id='8e992c3d'/>
+      <function-decl name='drm_framebuffer_init' mangled-name='drm_framebuffer_init' filepath='drivers/gpu/drm/drm_framebuffer.c' line='844' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_framebuffer_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_framebuffer.c' line='844' column='1'/>
+        <parameter type-id='7b332e1c' name='fb' filepath='drivers/gpu/drm/drm_framebuffer.c' line='844' column='1'/>
+        <parameter type-id='8e992c3d' name='funcs' filepath='drivers/gpu/drm/drm_framebuffer.c' line='845' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_gem_cma_dumb_create_internal' mangled-name='drm_gem_cma_dumb_create_internal' filepath='drivers/gpu/drm/drm_gem_cma_helper.c' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_cma_dumb_create_internal'>
@@ -117139,10 +112521,10 @@
         <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='556' column='1'/>
         <return type-id='9f93c9da'/>
       </function-decl>
-      <function-decl name='drm_gem_handle_create' mangled-name='drm_gem_handle_create' filepath='include/drm/drm_gem.h' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_handle_create'>
-        <parameter type-id='9e99ecc1'/>
-        <parameter type-id='abd62a96'/>
-        <parameter type-id='f9409001'/>
+      <function-decl name='drm_gem_handle_create' mangled-name='drm_gem_handle_create' filepath='drivers/gpu/drm/drm_gem.c' line='443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_handle_create'>
+        <parameter type-id='9e99ecc1' name='file_priv' filepath='drivers/gpu/drm/drm_gem.c' line='443' column='1'/>
+        <parameter type-id='abd62a96' name='obj' filepath='drivers/gpu/drm/drm_gem.c' line='444' column='1'/>
+        <parameter type-id='f9409001' name='handlep' filepath='drivers/gpu/drm/drm_gem.c' line='445' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_gem_lock_reservations' mangled-name='drm_gem_lock_reservations' filepath='drivers/gpu/drm/drm_gem.c' line='1265' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_lock_reservations'>
@@ -117187,9 +112569,9 @@
         <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_gem.c' line='124' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_gem_object_lookup' mangled-name='drm_gem_object_lookup' filepath='include/drm/drm_gem.h' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_lookup'>
-        <parameter type-id='9e99ecc1'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='drm_gem_object_lookup' mangled-name='drm_gem_object_lookup' filepath='drivers/gpu/drm/drm_gem.c' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_lookup'>
+        <parameter type-id='9e99ecc1' name='filp' filepath='drivers/gpu/drm/drm_gem.c' line='755' column='1'/>
+        <parameter type-id='19c2251e' name='handle' filepath='drivers/gpu/drm/drm_gem.c' line='755' column='1'/>
         <return type-id='abd62a96'/>
       </function-decl>
       <function-decl name='drm_gem_object_put_locked' mangled-name='drm_gem_object_put_locked' filepath='drivers/gpu/drm/drm_gem.c' line='1006' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_gem_object_put_locked'>
@@ -117310,19 +112692,19 @@
         <parameter type-id='2ae08426' name='vma' filepath='drivers/gpu/drm/drm_gem.c' line='1023' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_get_edid' mangled-name='drm_get_edid' filepath='include/drm/drm_edid.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_edid'>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='b9af02c3'/>
+      <function-decl name='drm_get_edid' mangled-name='drm_get_edid' filepath='drivers/gpu/drm/drm_edid.c' line='2056' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_edid'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_edid.c' line='2056' column='1'/>
+        <parameter type-id='b9af02c3' name='adapter' filepath='drivers/gpu/drm/drm_edid.c' line='2057' column='1'/>
         <return type-id='c91d1bf1'/>
       </function-decl>
-      <function-decl name='drm_get_format_info' mangled-name='drm_get_format_info' filepath='include/drm/drm_fourcc.h' line='310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_format_info'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='92ed24a5'/>
+      <function-decl name='drm_get_format_info' mangled-name='drm_get_format_info' filepath='drivers/gpu/drm/drm_fourcc.c' line='332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_format_info'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_fourcc.c' line='332' column='1'/>
+        <parameter type-id='92ed24a5' name='mode_cmd' filepath='drivers/gpu/drm/drm_fourcc.c' line='333' column='1'/>
         <return type-id='f10b2208'/>
       </function-decl>
-      <function-decl name='drm_get_format_name' mangled-name='drm_get_format_name' filepath='include/drm/drm_fourcc.h' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_format_name'>
-        <parameter type-id='8f92235e'/>
-        <parameter type-id='d00fb93a'/>
+      <function-decl name='drm_get_format_name' mangled-name='drm_get_format_name' filepath='drivers/gpu/drm/drm_fourcc.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_get_format_name'>
+        <parameter type-id='8f92235e' name='format' filepath='drivers/gpu/drm/drm_fourcc.c' line='138' column='1'/>
+        <parameter type-id='d00fb93a' name='buf' filepath='drivers/gpu/drm/drm_fourcc.c' line='138' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
       <function-decl name='drm_handle_vblank' mangled-name='drm_handle_vblank' filepath='drivers/gpu/drm/drm_vblank.c' line='1919' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_handle_vblank'>
@@ -117367,8 +112749,8 @@
         <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_irq.c' line='169' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_kms_helper_hotplug_event' mangled-name='drm_kms_helper_hotplug_event' filepath='include/drm/drm_probe_helper.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_hotplug_event'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_kms_helper_hotplug_event' mangled-name='drm_kms_helper_hotplug_event' filepath='drivers/gpu/drm/drm_probe_helper.c' line='607' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_hotplug_event'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_probe_helper.c' line='607' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_kms_helper_poll_fini' mangled-name='drm_kms_helper_poll_fini' filepath='drivers/gpu/drm/drm_probe_helper.c' line='787' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_kms_helper_poll_fini'>
@@ -117405,8 +112787,8 @@
         <parameter type-id='6368b074' name='node' filepath='drivers/gpu/drm/drm_mm.c' line='630' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mm_takedown' mangled-name='drm_mm_takedown' filepath='include/drm/drm_mm.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_takedown'>
-        <parameter type-id='0ee978f1'/>
+      <function-decl name='drm_mm_takedown' mangled-name='drm_mm_takedown' filepath='drivers/gpu/drm/drm_mm.c' line='996' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mm_takedown'>
+        <parameter type-id='0ee978f1' name='mm' filepath='drivers/gpu/drm/drm_mm.c' line='996' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_mode_config_cleanup' mangled-name='drm_mode_config_cleanup' filepath='drivers/gpu/drm/drm_mode_config.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_cleanup'>
@@ -117421,32 +112803,32 @@
         <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_helper.c' line='195' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_mode_config_reset' mangled-name='drm_mode_config_reset' filepath='include/drm/drm_mode_config.h' line='967' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_reset'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_mode_config_reset' mangled-name='drm_mode_config_reset' filepath='drivers/gpu/drm/drm_mode_config.c' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_config_reset'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_config.c' line='181' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_convert_to_umode' mangled-name='drm_mode_convert_to_umode' filepath='include/drm/drm_modes.h' line='429' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_convert_to_umode'>
-        <parameter type-id='1bd40de0'/>
-        <parameter type-id='745b39e8'/>
+      <function-decl name='drm_mode_convert_to_umode' mangled-name='drm_mode_convert_to_umode' filepath='drivers/gpu/drm/drm_modes.c' line='1900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_convert_to_umode'>
+        <parameter type-id='1bd40de0' name='out' filepath='drivers/gpu/drm/drm_modes.c' line='1900' column='1'/>
+        <parameter type-id='745b39e8' name='in' filepath='drivers/gpu/drm/drm_modes.c' line='1901' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_copy' mangled-name='drm_mode_copy' filepath='include/drm/drm_modes.h' line='472' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_copy'>
-        <parameter type-id='11e02f83'/>
-        <parameter type-id='745b39e8'/>
+      <function-decl name='drm_mode_copy' mangled-name='drm_mode_copy' filepath='drivers/gpu/drm/drm_modes.c' line='886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_copy'>
+        <parameter type-id='11e02f83' name='dst' filepath='drivers/gpu/drm/drm_modes.c' line='886' column='1'/>
+        <parameter type-id='745b39e8' name='src' filepath='drivers/gpu/drm/drm_modes.c' line='886' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_debug_printmodeline' mangled-name='drm_mode_debug_printmodeline' filepath='include/drm/drm_modes.h' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_debug_printmodeline'>
-        <parameter type-id='745b39e8'/>
+      <function-decl name='drm_mode_debug_printmodeline' mangled-name='drm_mode_debug_printmodeline' filepath='drivers/gpu/drm/drm_modes.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_debug_printmodeline'>
+        <parameter type-id='745b39e8' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='54' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_destroy' mangled-name='drm_mode_destroy' filepath='include/drm/drm_modes.h' line='428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_destroy'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='11e02f83'/>
+      <function-decl name='drm_mode_destroy' mangled-name='drm_mode_destroy' filepath='drivers/gpu/drm/drm_modes.c' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_destroy'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modes.c' line='89' column='1'/>
+        <parameter type-id='11e02f83' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='89' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_duplicate' mangled-name='drm_mode_duplicate' filepath='include/drm/drm_modes.h' line='474' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_duplicate'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='745b39e8'/>
+      <function-decl name='drm_mode_duplicate' mangled-name='drm_mode_duplicate' filepath='drivers/gpu/drm/drm_modes.c' line='906' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_duplicate'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modes.c' line='906' column='1'/>
+        <parameter type-id='745b39e8' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='907' column='1'/>
         <return type-id='11e02f83'/>
       </function-decl>
       <function-decl name='drm_mode_equal' mangled-name='drm_mode_equal' filepath='drivers/gpu/drm/drm_modes.c' line='1024' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_equal'>
@@ -117466,70 +112848,70 @@
         <parameter type-id='8f92235e' name='type' filepath='drivers/gpu/drm/drm_mode_object.c' line='175' column='1'/>
         <return type-id='c5417630'/>
       </function-decl>
-      <function-decl name='drm_mode_object_get' mangled-name='drm_mode_object_get' filepath='include/drm/drm_mode_object.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_get'>
-        <parameter type-id='c5417630'/>
+      <function-decl name='drm_mode_object_get' mangled-name='drm_mode_object_get' filepath='drivers/gpu/drm/drm_mode_object.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_get'>
+        <parameter type-id='c5417630' name='obj' filepath='drivers/gpu/drm/drm_mode_object.c' line='209' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_object_put' mangled-name='drm_mode_object_put' filepath='include/drm/drm_mode_object.h' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_put'>
-        <parameter type-id='c5417630'/>
+      <function-decl name='drm_mode_object_put' mangled-name='drm_mode_object_put' filepath='drivers/gpu/drm/drm_mode_object.c' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_object_put'>
+        <parameter type-id='c5417630' name='obj' filepath='drivers/gpu/drm/drm_mode_object.c' line='192' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_probed_add' mangled-name='drm_mode_probed_add' filepath='include/drm/drm_modes.h' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_probed_add'>
-        <parameter type-id='4db02c58'/>
-        <parameter type-id='11e02f83'/>
+      <function-decl name='drm_mode_probed_add' mangled-name='drm_mode_probed_add' filepath='drivers/gpu/drm/drm_modes.c' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_probed_add'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_modes.c' line='107' column='1'/>
+        <parameter type-id='11e02f83' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='108' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_mode_vrefresh' mangled-name='drm_mode_vrefresh' filepath='include/drm/drm_modes.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_vrefresh'>
-        <parameter type-id='745b39e8'/>
+      <function-decl name='drm_mode_vrefresh' mangled-name='drm_mode_vrefresh' filepath='drivers/gpu/drm/drm_modes.c' line='758' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_mode_vrefresh'>
+        <parameter type-id='745b39e8' name='mode' filepath='drivers/gpu/drm/drm_modes.c' line='758' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_modeset_acquire_fini' mangled-name='drm_modeset_acquire_fini' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_acquire_fini'>
         <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='214' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_modeset_acquire_init' mangled-name='drm_modeset_acquire_init' filepath='include/drm/drm_modeset_lock.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_acquire_init'>
-        <parameter type-id='d1499e71'/>
-        <parameter type-id='8f92235e'/>
+      <function-decl name='drm_modeset_acquire_init' mangled-name='drm_modeset_acquire_init' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='198' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_acquire_init'>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='198' column='1'/>
+        <parameter type-id='8f92235e' name='flags' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='199' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_modeset_backoff' mangled-name='drm_modeset_backoff' filepath='include/drm/drm_modeset_lock.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_backoff'>
-        <parameter type-id='d1499e71'/>
+      <function-decl name='drm_modeset_backoff' mangled-name='drm_modeset_backoff' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_backoff'>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='294' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_modeset_drop_locks' mangled-name='drm_modeset_drop_locks' filepath='include/drm/drm_modeset_lock.h' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_drop_locks'>
-        <parameter type-id='d1499e71'/>
+      <function-decl name='drm_modeset_drop_locks' mangled-name='drm_modeset_drop_locks' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_drop_locks'>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='226' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_modeset_lock' mangled-name='drm_modeset_lock' filepath='include/drm/drm_modeset_lock.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock'>
-        <parameter type-id='b4b06bb8'/>
-        <parameter type-id='d1499e71'/>
+      <function-decl name='drm_modeset_lock' mangled-name='drm_modeset_lock' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock'>
+        <parameter type-id='b4b06bb8' name='lock' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='338' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='339' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_modeset_lock_all' mangled-name='drm_modeset_lock_all' filepath='include/drm/drm_modeset_lock.h' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_modeset_lock_all' mangled-name='drm_modeset_lock_all' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='95' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_modeset_lock_all_ctx' mangled-name='drm_modeset_lock_all_ctx' filepath='include/drm/drm_modeset_lock.h' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all_ctx'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='d1499e71'/>
+      <function-decl name='drm_modeset_lock_all_ctx' mangled-name='drm_modeset_lock_all_ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_all_ctx'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='395' column='1'/>
+        <parameter type-id='d1499e71' name='ctx' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='396' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_modeset_lock_init' mangled-name='drm_modeset_lock_init' filepath='include/drm/drm_modeset_lock.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_init'>
-        <parameter type-id='b4b06bb8'/>
+      <function-decl name='drm_modeset_lock_init' mangled-name='drm_modeset_lock_init' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_lock_init'>
+        <parameter type-id='b4b06bb8' name='lock' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='313' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_modeset_unlock' mangled-name='drm_modeset_unlock' filepath='include/drm/drm_modeset_lock.h' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock'>
-        <parameter type-id='b4b06bb8'/>
+      <function-decl name='drm_modeset_unlock' mangled-name='drm_modeset_unlock' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock'>
+        <parameter type-id='b4b06bb8' name='lock' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='368' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_modeset_unlock_all' mangled-name='drm_modeset_unlock_all' filepath='include/drm/drm_modeset_lock.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock_all'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_modeset_unlock_all' mangled-name='drm_modeset_unlock_all' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_modeset_unlock_all'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_modeset_lock.c' line='149' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_object_attach_property' mangled-name='drm_object_attach_property' filepath='include/drm/drm_mode_object.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_object_attach_property'>
-        <parameter type-id='c5417630'/>
-        <parameter type-id='26ea5d4c'/>
-        <parameter type-id='9c313c2d'/>
+      <function-decl name='drm_object_attach_property' mangled-name='drm_object_attach_property' filepath='drivers/gpu/drm/drm_mode_object.c' line='231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_object_attach_property'>
+        <parameter type-id='c5417630' name='obj' filepath='drivers/gpu/drm/drm_mode_object.c' line='231' column='1'/>
+        <parameter type-id='26ea5d4c' name='property' filepath='drivers/gpu/drm/drm_mode_object.c' line='232' column='1'/>
+        <parameter type-id='9c313c2d' name='init_val' filepath='drivers/gpu/drm/drm_mode_object.c' line='233' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_of_component_match_add' mangled-name='drm_of_component_match_add' filepath='drivers/gpu/drm/drm_of.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_of_component_match_add'>
@@ -117553,17 +112935,17 @@
         <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='74' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_panel_disable' mangled-name='drm_panel_disable' filepath='include/drm/drm_panel.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_disable'>
-        <parameter type-id='c5491077'/>
+      <function-decl name='drm_panel_disable' mangled-name='drm_panel_disable' filepath='drivers/gpu/drm/drm_panel.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_disable'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='183' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_panel_enable' mangled-name='drm_panel_enable' filepath='include/drm/drm_panel.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_enable'>
-        <parameter type-id='c5491077'/>
+      <function-decl name='drm_panel_enable' mangled-name='drm_panel_enable' filepath='drivers/gpu/drm/drm_panel.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_enable'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='151' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_panel_get_modes' mangled-name='drm_panel_get_modes' filepath='include/drm/drm_panel.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_get_modes'>
-        <parameter type-id='c5491077'/>
-        <parameter type-id='4db02c58'/>
+      <function-decl name='drm_panel_get_modes' mangled-name='drm_panel_get_modes' filepath='drivers/gpu/drm/drm_panel.c' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_get_modes'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='213' column='1'/>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_panel.c' line='214' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_panel_init' mangled-name='drm_panel_init' filepath='drivers/gpu/drm/drm_panel.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_init'>
@@ -117573,20 +112955,20 @@
         <parameter type-id='95e97e5e' name='connector_type' filepath='drivers/gpu/drm/drm_panel.c' line='58' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_panel_prepare' mangled-name='drm_panel_prepare' filepath='include/drm/drm_panel.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_prepare'>
-        <parameter type-id='c5491077'/>
+      <function-decl name='drm_panel_prepare' mangled-name='drm_panel_prepare' filepath='drivers/gpu/drm/drm_panel.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_prepare'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='106' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_panel_remove' mangled-name='drm_panel_remove' filepath='drivers/gpu/drm/drm_panel.c' line='88' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_remove'>
         <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='88' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_panel_unprepare' mangled-name='drm_panel_unprepare' filepath='include/drm/drm_panel.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_unprepare'>
-        <parameter type-id='c5491077'/>
+      <function-decl name='drm_panel_unprepare' mangled-name='drm_panel_unprepare' filepath='drivers/gpu/drm/drm_panel.c' line='129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_panel_unprepare'>
+        <parameter type-id='c5491077' name='panel' filepath='drivers/gpu/drm/drm_panel.c' line='129' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_plane_cleanup' mangled-name='drm_plane_cleanup' filepath='include/drm/drm_plane.h' line='747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_cleanup'>
-        <parameter type-id='a6711537'/>
+      <function-decl name='drm_plane_cleanup' mangled-name='drm_plane_cleanup' filepath='drivers/gpu/drm/drm_plane.c' line='365' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_cleanup'>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_plane.c' line='365' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_plane_create_alpha_property' mangled-name='drm_plane_create_alpha_property' filepath='drivers/gpu/drm/drm_blend.c' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_plane_create_alpha_property'>
@@ -117643,9 +113025,9 @@
         <parameter type-id='95e97e5e' name='max_entries' filepath='drivers/gpu/drm/drm_prime.c' line='1020' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_printf' mangled-name='drm_printf' filepath='include/drm/drm_print.h' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_printf'>
-        <parameter type-id='7ac48c21'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='drm_printf' mangled-name='drm_printf' filepath='drivers/gpu/drm/drm_print.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_printf'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='197' column='1'/>
+        <parameter type-id='80f4b756' name='f' filepath='drivers/gpu/drm/drm_print.c' line='197' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
@@ -117653,52 +113035,52 @@
         <parameter type-id='c4126d52' name='blob' filepath='drivers/gpu/drm/drm_property.c' line='634' column='1'/>
         <return type-id='c4126d52'/>
       </function-decl>
-      <function-decl name='drm_property_blob_put' mangled-name='drm_property_blob_put' filepath='include/drm/drm_property.h' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_blob_put'>
-        <parameter type-id='c4126d52'/>
+      <function-decl name='drm_property_blob_put' mangled-name='drm_property_blob_put' filepath='drivers/gpu/drm/drm_property.c' line='603' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_blob_put'>
+        <parameter type-id='c4126d52' name='blob' filepath='drivers/gpu/drm/drm_property.c' line='603' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_property_create' mangled-name='drm_property_create' filepath='include/drm/drm_property.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_property_create' mangled-name='drm_property_create' filepath='drivers/gpu/drm/drm_property.c' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='96' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/gpu/drm/drm_property.c' line='97' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_property.c' line='97' column='1'/>
+        <parameter type-id='95e97e5e' name='num_values' filepath='drivers/gpu/drm/drm_property.c' line='98' column='1'/>
         <return type-id='26ea5d4c'/>
       </function-decl>
-      <function-decl name='drm_property_create_bitmask' mangled-name='drm_property_create_bitmask' filepath='include/drm/drm_property.h' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bitmask'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b807105c'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='9c313c2d'/>
+      <function-decl name='drm_property_create_bitmask' mangled-name='drm_property_create_bitmask' filepath='drivers/gpu/drm/drm_property.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bitmask'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='210' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/gpu/drm/drm_property.c' line='211' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_property.c' line='211' column='1'/>
+        <parameter type-id='b807105c' name='props' filepath='drivers/gpu/drm/drm_property.c' line='212' column='1'/>
+        <parameter type-id='95e97e5e' name='num_props' filepath='drivers/gpu/drm/drm_property.c' line='213' column='1'/>
+        <parameter type-id='9c313c2d' name='supported_bits' filepath='drivers/gpu/drm/drm_property.c' line='214' column='1'/>
         <return type-id='26ea5d4c'/>
       </function-decl>
-      <function-decl name='drm_property_create_blob' mangled-name='drm_property_create_blob' filepath='include/drm/drm_property.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_blob'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='drm_property_create_blob' mangled-name='drm_property_create_blob' filepath='drivers/gpu/drm/drm_property.c' line='558' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_blob'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='558' column='1'/>
+        <parameter type-id='b59d7dce' name='length' filepath='drivers/gpu/drm/drm_property.c' line='558' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpu/drm/drm_property.c' line='559' column='1'/>
         <return type-id='c4126d52'/>
       </function-decl>
-      <function-decl name='drm_property_create_bool' mangled-name='drm_property_create_bool' filepath='include/drm/drm_property.h' line='264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bool'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='drm_property_create_bool' mangled-name='drm_property_create_bool' filepath='drivers/gpu/drm/drm_property.c' line='369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_bool'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='369' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/gpu/drm/drm_property.c' line='370' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_property.c' line='370' column='1'/>
         <return type-id='26ea5d4c'/>
       </function-decl>
-      <function-decl name='drm_property_create_enum' mangled-name='drm_property_create_enum' filepath='include/drm/drm_property.h' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_enum'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b807105c'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_property_create_enum' mangled-name='drm_property_create_enum' filepath='drivers/gpu/drm/drm_property.c' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_enum'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='162' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/gpu/drm/drm_property.c' line='163' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_property.c' line='163' column='1'/>
+        <parameter type-id='b807105c' name='props' filepath='drivers/gpu/drm/drm_property.c' line='164' column='1'/>
+        <parameter type-id='95e97e5e' name='num_values' filepath='drivers/gpu/drm/drm_property.c' line='165' column='1'/>
         <return type-id='26ea5d4c'/>
       </function-decl>
-      <function-decl name='drm_property_create_range' mangled-name='drm_property_create_range' filepath='include/drm/drm_property.h' line='255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_range'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='9c313c2d'/>
-        <parameter type-id='9c313c2d'/>
+      <function-decl name='drm_property_create_range' mangled-name='drm_property_create_range' filepath='drivers/gpu/drm/drm_property.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_range'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_property.c' line='277' column='1'/>
+        <parameter type-id='19c2251e' name='flags' filepath='drivers/gpu/drm/drm_property.c' line='278' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_property.c' line='278' column='1'/>
+        <parameter type-id='9c313c2d' name='min' filepath='drivers/gpu/drm/drm_property.c' line='279' column='1'/>
+        <parameter type-id='9c313c2d' name='max' filepath='drivers/gpu/drm/drm_property.c' line='279' column='1'/>
         <return type-id='26ea5d4c'/>
       </function-decl>
       <function-decl name='drm_property_create_signed_range' mangled-name='drm_property_create_signed_range' filepath='drivers/gpu/drm/drm_property.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_create_signed_range'>
@@ -117714,9 +113096,9 @@
         <parameter type-id='8f92235e' name='id' filepath='drivers/gpu/drm/drm_property.c' line='654' column='1'/>
         <return type-id='c4126d52'/>
       </function-decl>
-      <function-decl name='drm_property_replace_blob' mangled-name='drm_property_replace_blob' filepath='include/drm/drm_property.h' line='281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_replace_blob'>
-        <parameter type-id='210253e8'/>
-        <parameter type-id='c4126d52'/>
+      <function-decl name='drm_property_replace_blob' mangled-name='drm_property_replace_blob' filepath='drivers/gpu/drm/drm_property.c' line='741' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_property_replace_blob'>
+        <parameter type-id='210253e8' name='blob' filepath='drivers/gpu/drm/drm_property.c' line='741' column='1'/>
+        <parameter type-id='c4126d52' name='new_blob' filepath='drivers/gpu/drm/drm_property.c' line='742' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='drm_puts' mangled-name='drm_puts' filepath='drivers/gpu/drm/drm_print.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_puts'>
@@ -117731,29 +113113,29 @@
         <parameter type-id='b53e8dbb' name='offset' filepath='drivers/gpu/drm/drm_file.c' line='570' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
-      <function-decl name='drm_rect_calc_hscale' mangled-name='drm_rect_calc_hscale' filepath='include/drm/drm_rect.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_calc_hscale'>
-        <parameter type-id='7d69a4de'/>
-        <parameter type-id='7d69a4de'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_rect_calc_hscale' mangled-name='drm_rect_calc_hscale' filepath='drivers/gpu/drm/drm_rect.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_calc_hscale'>
+        <parameter type-id='7d69a4de' name='src' filepath='drivers/gpu/drm/drm_rect.c' line='169' column='1'/>
+        <parameter type-id='7d69a4de' name='dst' filepath='drivers/gpu/drm/drm_rect.c' line='170' column='1'/>
+        <parameter type-id='95e97e5e' name='min_hscale' filepath='drivers/gpu/drm/drm_rect.c' line='171' column='1'/>
+        <parameter type-id='95e97e5e' name='max_hscale' filepath='drivers/gpu/drm/drm_rect.c' line='171' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_rect_calc_vscale' mangled-name='drm_rect_calc_vscale' filepath='include/drm/drm_rect.h' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_calc_vscale'>
-        <parameter type-id='7d69a4de'/>
-        <parameter type-id='7d69a4de'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='drm_rect_calc_vscale' mangled-name='drm_rect_calc_vscale' filepath='drivers/gpu/drm/drm_rect.c' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_calc_vscale'>
+        <parameter type-id='7d69a4de' name='src' filepath='drivers/gpu/drm/drm_rect.c' line='204' column='1'/>
+        <parameter type-id='7d69a4de' name='dst' filepath='drivers/gpu/drm/drm_rect.c' line='205' column='1'/>
+        <parameter type-id='95e97e5e' name='min_vscale' filepath='drivers/gpu/drm/drm_rect.c' line='206' column='1'/>
+        <parameter type-id='95e97e5e' name='max_vscale' filepath='drivers/gpu/drm/drm_rect.c' line='206' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_rect_clip_scaled' mangled-name='drm_rect_clip_scaled' filepath='include/drm/drm_rect.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_clip_scaled'>
-        <parameter type-id='c91d6c11'/>
-        <parameter type-id='c91d6c11'/>
-        <parameter type-id='7d69a4de'/>
+      <function-decl name='drm_rect_clip_scaled' mangled-name='drm_rect_clip_scaled' filepath='drivers/gpu/drm/drm_rect.c' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_clip_scaled'>
+        <parameter type-id='c91d6c11' name='src' filepath='drivers/gpu/drm/drm_rect.c' line='92' column='1'/>
+        <parameter type-id='c91d6c11' name='dst' filepath='drivers/gpu/drm/drm_rect.c' line='92' column='1'/>
+        <parameter type-id='7d69a4de' name='clip' filepath='drivers/gpu/drm/drm_rect.c' line='93' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='drm_rect_intersect' mangled-name='drm_rect_intersect' filepath='include/drm/drm_rect.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_intersect'>
-        <parameter type-id='c91d6c11'/>
-        <parameter type-id='7d69a4de'/>
+      <function-decl name='drm_rect_intersect' mangled-name='drm_rect_intersect' filepath='drivers/gpu/drm/drm_rect.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_rect_intersect'>
+        <parameter type-id='c91d6c11' name='r1' filepath='drivers/gpu/drm/drm_rect.c' line='44' column='1'/>
+        <parameter type-id='7d69a4de' name='r2' filepath='drivers/gpu/drm/drm_rect.c' line='44' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='drm_release' mangled-name='drm_release' filepath='drivers/gpu/drm/drm_file.c' line='484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_release'>
@@ -117766,8 +113148,8 @@
         <parameter type-id='f0981eeb' name='supported_rotations' filepath='drivers/gpu/drm/drm_blend.c' line='319' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='drm_self_refresh_helper_alter_state' mangled-name='drm_self_refresh_helper_alter_state' filepath='include/drm/drm_self_refresh_helper.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_self_refresh_helper_alter_state'>
-        <parameter type-id='e3dd029e'/>
+      <function-decl name='drm_self_refresh_helper_alter_state' mangled-name='drm_self_refresh_helper_alter_state' filepath='drivers/gpu/drm/drm_self_refresh_helper.c' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_self_refresh_helper_alter_state'>
+        <parameter type-id='e3dd029e' name='state' filepath='drivers/gpu/drm/drm_self_refresh_helper.c' line='187' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='drm_send_event' mangled-name='drm_send_event' filepath='drivers/gpu/drm/drm_file.c' line='879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_send_event'>
@@ -117826,20 +113208,20 @@
         <parameter type-id='28271da3' name='fence' filepath='drivers/gpu/drm/drm_syncobj.c' line='322' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_sysfs_hotplug_event' mangled-name='drm_sysfs_hotplug_event' filepath='include/drm/drm_sysfs.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_sysfs_hotplug_event'>
-        <parameter type-id='8898134d'/>
+      <function-decl name='drm_sysfs_hotplug_event' mangled-name='drm_sysfs_hotplug_event' filepath='drivers/gpu/drm/drm_sysfs.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_sysfs_hotplug_event'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_sysfs.c' line='336' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drm_universal_plane_init' mangled-name='drm_universal_plane_init' filepath='include/drm/drm_plane.h' line='732' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_universal_plane_init'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='a6711537'/>
-        <parameter type-id='8f92235e'/>
-        <parameter type-id='cfd5d066'/>
-        <parameter type-id='a6798dcc'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='713a56f5'/>
-        <parameter type-id='5eed3c85'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='drm_universal_plane_init' mangled-name='drm_universal_plane_init' filepath='drivers/gpu/drm/drm_plane.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_universal_plane_init'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_plane.c' line='173' column='1'/>
+        <parameter type-id='a6711537' name='plane' filepath='drivers/gpu/drm/drm_plane.c' line='173' column='1'/>
+        <parameter type-id='8f92235e' name='possible_crtcs' filepath='drivers/gpu/drm/drm_plane.c' line='174' column='1'/>
+        <parameter type-id='cfd5d066' name='funcs' filepath='drivers/gpu/drm/drm_plane.c' line='175' column='1'/>
+        <parameter type-id='a6798dcc' name='formats' filepath='drivers/gpu/drm/drm_plane.c' line='176' column='1'/>
+        <parameter type-id='f0981eeb' name='format_count' filepath='drivers/gpu/drm/drm_plane.c' line='176' column='1'/>
+        <parameter type-id='713a56f5' name='format_modifiers' filepath='drivers/gpu/drm/drm_plane.c' line='177' column='1'/>
+        <parameter type-id='5eed3c85' name='type' filepath='drivers/gpu/drm/drm_plane.c' line='178' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/gpu/drm/drm_plane.c' line='179' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
@@ -117867,24 +113249,24 @@
         <parameter type-id='95e97e5e' name='status' filepath='drivers/gpu/drm/drm_writeback.c' line='367' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='drmm_kmalloc' mangled-name='drmm_kmalloc' filepath='include/drm/drm_managed.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drmm_kmalloc'>
-        <parameter type-id='8898134d'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='drmm_kmalloc' mangled-name='drmm_kmalloc' filepath='drivers/gpu/drm/drm_managed.c' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drmm_kmalloc'>
+        <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_managed.c' line='188' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='drivers/gpu/drm/drm_managed.c' line='188' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/gpu/drm/drm_managed.c' line='188' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='drmm_mode_config_init' mangled-name='drmm_mode_config_init' filepath='drivers/gpu/drm/drm_mode_config.c' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drmm_mode_config_init'>
         <parameter type-id='8898134d' name='dev' filepath='drivers/gpu/drm/drm_mode_config.c' line='399' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='dst_release' mangled-name='dst_release' filepath='include/net/dst.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dst_release'>
-        <parameter type-id='141b6427'/>
+      <function-decl name='dst_release' mangled-name='dst_release' filepath='net/core/dst.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dst_release'>
+        <parameter type-id='141b6427' name='dst' filepath='net/core/dst.c' line='169' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='dump_backtrace' mangled-name='dump_backtrace' filepath='arch/arm64/include/asm/stacktrace.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_backtrace'>
-        <parameter type-id='4616a179'/>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='dump_backtrace' mangled-name='dump_backtrace' filepath='arch/arm64/kernel/stacktrace.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_backtrace'>
+        <parameter type-id='4616a179' name='regs' filepath='arch/arm64/kernel/stacktrace.c' line='140' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='arch/arm64/kernel/stacktrace.c' line='140' column='1'/>
+        <parameter type-id='80f4b756' name='loglvl' filepath='arch/arm64/kernel/stacktrace.c' line='141' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dump_stack' mangled-name='dump_stack' filepath='lib/dump_stack.c' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dump_stack'>
@@ -117938,24 +113320,24 @@
       </function-decl>
       <var-decl name='efi' type-id='f7bdefe9' mangled-name='efi' visibility='default' filepath='drivers/firmware/efi/efi.c' line='37' column='1' elf-symbol-id='efi'/>
       <var-decl name='efi_tpm_final_log_size' type-id='95e97e5e' mangled-name='efi_tpm_final_log_size' visibility='default' filepath='drivers/firmware/efi/tpm.c' line='16' column='1' elf-symbol-id='efi_tpm_final_log_size'/>
-      <function-decl name='em_cpu_get' mangled-name='em_cpu_get' filepath='include/linux/energy_model.h' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='em_cpu_get'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='em_cpu_get' mangled-name='em_cpu_get' filepath='kernel/power/energy_model.c' line='241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='em_cpu_get'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/power/energy_model.c' line='241' column='1'/>
         <return type-id='ce714046'/>
       </function-decl>
       <function-decl name='emergency_restart' mangled-name='emergency_restart' filepath='kernel/reboot.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='emergency_restart'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='enable_irq' mangled-name='enable_irq' filepath='include/linux/interrupt.h' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_irq'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='enable_irq' mangled-name='enable_irq' filepath='kernel/irq/manage.c' line='709' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='709' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='enable_percpu_irq' mangled-name='enable_percpu_irq' filepath='include/linux/interrupt.h' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_percpu_irq'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='enable_percpu_irq' mangled-name='enable_percpu_irq' filepath='kernel/irq/manage.c' line='2236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='enable_percpu_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2236' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='kernel/irq/manage.c' line='2236' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='errno_to_blk_status' mangled-name='errno_to_blk_status' filepath='include/linux/blkdev.h' line='980' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='errno_to_blk_status'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='errno_to_blk_status' mangled-name='errno_to_blk_status' filepath='block/blk-core.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='errno_to_blk_status'>
+        <parameter type-id='95e97e5e' name='errno' filepath='block/blk-core.c' line='197' column='1'/>
         <return type-id='f4e2facd'/>
       </function-decl>
       <function-decl name='eth_commit_mac_addr_change' mangled-name='eth_commit_mac_addr_change' filepath='net/ethernet/eth.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_commit_mac_addr_change'>
@@ -117963,14 +113345,14 @@
         <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='308' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='eth_mac_addr' mangled-name='eth_mac_addr' filepath='include/linux/etherdevice.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_mac_addr'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='eth_mac_addr' mangled-name='eth_mac_addr' filepath='net/ethernet/eth.c' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_mac_addr'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='326' column='1'/>
+        <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='326' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='eth_platform_get_mac_address' mangled-name='eth_platform_get_mac_address' filepath='include/linux/etherdevice.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_platform_get_mac_address'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='8bff8096'/>
+      <function-decl name='eth_platform_get_mac_address' mangled-name='eth_platform_get_mac_address' filepath='net/ethernet/eth.c' line='507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_platform_get_mac_address'>
+        <parameter type-id='fa0b179b' name='dev' filepath='net/ethernet/eth.c' line='507' column='1'/>
+        <parameter type-id='8bff8096' name='mac_addr' filepath='net/ethernet/eth.c' line='507' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='eth_prepare_mac_addr_change' mangled-name='eth_prepare_mac_addr_change' filepath='net/ethernet/eth.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_prepare_mac_addr_change'>
@@ -117978,21 +113360,21 @@
         <parameter type-id='eaa32e2f' name='p' filepath='net/ethernet/eth.c' line='291' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='eth_type_trans' mangled-name='eth_type_trans' filepath='include/linux/etherdevice.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_type_trans'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='eth_type_trans' mangled-name='eth_type_trans' filepath='net/ethernet/eth.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_type_trans'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/ethernet/eth.c' line='155' column='1'/>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='155' column='1'/>
         <return type-id='84a5c3d4'/>
       </function-decl>
       <function-decl name='eth_validate_addr' mangled-name='eth_validate_addr' filepath='net/ethernet/eth.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eth_validate_addr'>
         <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='338' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ether_setup' mangled-name='ether_setup' filepath='include/linux/netdevice.h' line='4462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ether_setup'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='ether_setup' mangled-name='ether_setup' filepath='net/ethernet/eth.c' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ether_setup'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethernet/eth.c' line='361' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ethtool_op_get_link' mangled-name='ethtool_op_get_link' filepath='include/linux/ethtool.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ethtool_op_get_link'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='ethtool_op_get_link' mangled-name='ethtool_op_get_link' filepath='net/ethtool/ioctl.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ethtool_op_get_link'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/ethtool/ioctl.c' line='40' column='1'/>
         <return type-id='19c2251e'/>
       </function-decl>
       <function-decl name='ethtool_op_get_ts_info' mangled-name='ethtool_op_get_ts_info' filepath='net/ethtool/ioctl.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ethtool_op_get_ts_info'>
@@ -118007,28 +113389,28 @@
         <parameter type-id='8bff8096' name='dev_duplex' filepath='net/ethtool/ioctl.c' line='613' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='event_triggers_call' mangled-name='event_triggers_call' filepath='include/linux/trace_events.h' line='589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='event_triggers_call'>
-        <parameter type-id='3d4ca6d2'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='3275e929'/>
+      <function-decl name='event_triggers_call' mangled-name='event_triggers_call' filepath='kernel/trace/trace_events_trigger.c' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='event_triggers_call'>
+        <parameter type-id='3d4ca6d2' name='file' filepath='kernel/trace/trace_events_trigger.c' line='56' column='1'/>
+        <parameter type-id='eaa32e2f' name='rec' filepath='kernel/trace/trace_events_trigger.c' line='56' column='1'/>
+        <parameter type-id='3275e929' name='event' filepath='kernel/trace/trace_events_trigger.c' line='57' column='1'/>
         <return type-id='21b4096c'/>
       </function-decl>
-      <function-decl name='eventfd_ctx_fdget' mangled-name='eventfd_ctx_fdget' filepath='include/linux/eventfd.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_ctx_fdget'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='eventfd_ctx_fdget' mangled-name='eventfd_ctx_fdget' filepath='fs/eventfd.c' line='370' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_ctx_fdget'>
+        <parameter type-id='95e97e5e' name='fd' filepath='fs/eventfd.c' line='370' column='1'/>
         <return type-id='71f2e203'/>
       </function-decl>
-      <function-decl name='eventfd_ctx_put' mangled-name='eventfd_ctx_put' filepath='include/linux/eventfd.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_ctx_put'>
-        <parameter type-id='71f2e203'/>
+      <function-decl name='eventfd_ctx_put' mangled-name='eventfd_ctx_put' filepath='fs/eventfd.c' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_ctx_put'>
+        <parameter type-id='71f2e203' name='ctx' filepath='fs/eventfd.c' line='112' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='eventfd_signal' mangled-name='eventfd_signal' filepath='include/linux/eventfd.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_signal'>
-        <parameter type-id='71f2e203'/>
-        <parameter type-id='d3130597'/>
+      <function-decl name='eventfd_signal' mangled-name='eventfd_signal' filepath='fs/eventfd.c' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='eventfd_signal'>
+        <parameter type-id='71f2e203' name='ctx' filepath='fs/eventfd.c' line='62' column='1'/>
+        <parameter type-id='d3130597' name='n' filepath='fs/eventfd.c' line='62' column='1'/>
         <return type-id='d3130597'/>
       </function-decl>
-      <function-decl name='extcon_get_edev_by_phandle' mangled-name='extcon_get_edev_by_phandle' filepath='include/linux/extcon.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_edev_by_phandle'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='extcon_get_edev_by_phandle' mangled-name='extcon_get_edev_by_phandle' filepath='drivers/extcon/extcon.c' line='1359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_edev_by_phandle'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/extcon/extcon.c' line='1359' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/extcon/extcon.c' line='1359' column='1'/>
         <return type-id='c0d6fada'/>
       </function-decl>
       <function-decl name='extcon_get_property' mangled-name='extcon_get_property' filepath='drivers/extcon/extcon.c' line='615' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_property'>
@@ -118038,15 +113420,15 @@
         <parameter type-id='50842338' name='prop_val' filepath='drivers/extcon/extcon.c' line='617' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='extcon_get_state' mangled-name='extcon_get_state' filepath='include/linux/extcon.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_state'>
-        <parameter type-id='c0d6fada'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='extcon_get_state' mangled-name='extcon_get_state' filepath='drivers/extcon/extcon.c' line='489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_get_state'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='489' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='489' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='extcon_register_notifier' mangled-name='extcon_register_notifier' filepath='include/linux/extcon.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_register_notifier'>
-        <parameter type-id='c0d6fada'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='extcon_register_notifier' mangled-name='extcon_register_notifier' filepath='drivers/extcon/extcon.c' line='899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_register_notifier'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='899' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='899' column='1'/>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/extcon/extcon.c' line='900' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='extcon_set_property' mangled-name='extcon_set_property' filepath='drivers/extcon/extcon.c' line='694' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_set_property'>
@@ -118068,27 +113450,27 @@
         <parameter type-id='b50a4934' name='state' filepath='drivers/extcon/extcon.c' line='577' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='extcon_unregister_notifier' mangled-name='extcon_unregister_notifier' filepath='include/linux/extcon.h' line='201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_unregister_notifier'>
-        <parameter type-id='c0d6fada'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='extcon_unregister_notifier' mangled-name='extcon_unregister_notifier' filepath='drivers/extcon/extcon.c' line='928' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='extcon_unregister_notifier'>
+        <parameter type-id='c0d6fada' name='edev' filepath='drivers/extcon/extcon.c' line='928' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/extcon/extcon.c' line='928' column='1'/>
+        <parameter type-id='d504f73d' name='nb' filepath='drivers/extcon/extcon.c' line='929' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='failure_tracking' type-id='49a0ad34' mangled-name='failure_tracking' visibility='default' filepath='mm/page_pinner.c' line='61' column='1' elf-symbol-id='failure_tracking'/>
-      <function-decl name='fasync_helper' mangled-name='fasync_helper' filepath='include/linux/fs.h' line='1355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fasync_helper'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='77e79a4b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='dc750055'/>
+      <function-decl name='fasync_helper' mangled-name='fasync_helper' filepath='fs/fcntl.c' line='982' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fasync_helper'>
+        <parameter type-id='95e97e5e' name='fd' filepath='fs/fcntl.c' line='982' column='1'/>
+        <parameter type-id='77e79a4b' name='filp' filepath='fs/fcntl.c' line='982' column='1'/>
+        <parameter type-id='95e97e5e' name='on' filepath='fs/fcntl.c' line='982' column='1'/>
+        <parameter type-id='dc750055' name='fapp' filepath='fs/fcntl.c' line='982' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='fd_install' mangled-name='fd_install' filepath='include/linux/file.h' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fd_install'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='77e79a4b'/>
+      <function-decl name='fd_install' mangled-name='fd_install' filepath='fs/file.c' line='633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fd_install'>
+        <parameter type-id='f0981eeb' name='fd' filepath='fs/file.c' line='633' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/file.c' line='633' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='fget' mangled-name='fget' filepath='include/linux/file.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fget'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='fget' mangled-name='fget' filepath='fs/file.c' line='937' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fget'>
+        <parameter type-id='f0981eeb' name='fd' filepath='fs/file.c' line='937' column='1'/>
         <return type-id='77e79a4b'/>
       </function-decl>
       <function-decl name='file_path' mangled-name='file_path' filepath='fs/open.c' line='927' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='file_path'>
@@ -118097,9 +113479,9 @@
         <parameter type-id='95e97e5e' name='buflen' filepath='fs/open.c' line='927' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='filp_close' mangled-name='filp_close' filepath='include/linux/fs.h' line='2597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filp_close'>
-        <parameter type-id='77e79a4b'/>
-        <parameter type-id='bc5666d5'/>
+      <function-decl name='filp_close' mangled-name='filp_close' filepath='fs/open.c' line='1309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filp_close'>
+        <parameter type-id='77e79a4b' name='filp' filepath='fs/open.c' line='1309' column='1'/>
+        <parameter type-id='bc5666d5' name='id' filepath='fs/open.c' line='1309' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='filp_open_block' mangled-name='filp_open_block' filepath='fs/open.c' line='1164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='filp_open_block'>
@@ -118108,44 +113490,44 @@
         <parameter type-id='2594b00f' name='mode' filepath='fs/open.c' line='1164' column='1'/>
         <return type-id='77e79a4b'/>
       </function-decl>
-      <function-decl name='find_extend_vma' mangled-name='find_extend_vma' filepath='include/linux/mm.h' line='2898' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_extend_vma'>
-        <parameter type-id='df4b7819'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='find_extend_vma' mangled-name='find_extend_vma' filepath='mm/mmap.c' line='2712' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_extend_vma'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/mmap.c' line='2712' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/mmap.c' line='2712' column='1'/>
         <return type-id='2ae08426'/>
       </function-decl>
-      <function-decl name='find_get_pid' mangled-name='find_get_pid' filepath='include/linux/pid.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_get_pid'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='find_get_pid' mangled-name='find_get_pid' filepath='kernel/pid.c' line='461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_get_pid'>
+        <parameter type-id='587f89d2' name='nr' filepath='kernel/pid.c' line='461' column='1'/>
         <return type-id='b94e5398'/>
       </function-decl>
-      <function-decl name='find_last_bit' mangled-name='find_last_bit' filepath='include/linux/bitops.h' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_last_bit'>
-        <parameter type-id='f9b37274'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='find_last_bit' mangled-name='find_last_bit' filepath='lib/find_bit.c' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_last_bit'>
+        <parameter type-id='f9b37274' name='addr' filepath='lib/find_bit.c' line='140' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='lib/find_bit.c' line='140' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='find_next_bit' mangled-name='find_next_bit' filepath='include/asm-generic/bitops/find.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_next_bit'>
-        <parameter type-id='f9b37274'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='find_next_bit' mangled-name='find_next_bit' filepath='lib/find_bit.c' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_next_bit'>
+        <parameter type-id='f9b37274' name='addr' filepath='lib/find_bit.c' line='76' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='lib/find_bit.c' line='76' column='1'/>
+        <parameter type-id='7359adad' name='offset' filepath='lib/find_bit.c' line='77' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='find_next_zero_bit' mangled-name='find_next_zero_bit' filepath='include/asm-generic/bitops/find.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_next_zero_bit'>
-        <parameter type-id='f9b37274'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='find_next_zero_bit' mangled-name='find_next_zero_bit' filepath='lib/find_bit.c' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_next_zero_bit'>
+        <parameter type-id='f9b37274' name='addr' filepath='lib/find_bit.c' line='85' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='lib/find_bit.c' line='85' column='1'/>
+        <parameter type-id='7359adad' name='offset' filepath='lib/find_bit.c' line='86' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='find_task_by_vpid' mangled-name='find_task_by_vpid' filepath='include/linux/sched.h' line='1799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_task_by_vpid'>
-        <parameter type-id='587f89d2'/>
+      <function-decl name='find_task_by_vpid' mangled-name='find_task_by_vpid' filepath='kernel/pid.c' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_task_by_vpid'>
+        <parameter type-id='587f89d2' name='vnr' filepath='kernel/pid.c' line='420' column='1'/>
         <return type-id='f23e2572'/>
       </function-decl>
-      <function-decl name='find_vma' mangled-name='find_vma' filepath='include/linux/mm.h' line='2817' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_vma'>
-        <parameter type-id='df4b7819'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='find_vma' mangled-name='find_vma' filepath='mm/mmap.c' line='2401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_vma'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/mmap.c' line='2401' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/mmap.c' line='2401' column='1'/>
         <return type-id='2ae08426'/>
       </function-decl>
-      <function-decl name='finish_wait' mangled-name='finish_wait' filepath='include/linux/wait.h' line='1157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='finish_wait'>
-        <parameter type-id='3f8b2ed3'/>
-        <parameter type-id='db9d03e3'/>
+      <function-decl name='finish_wait' mangled-name='finish_wait' filepath='kernel/sched/wait.c' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='finish_wait'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='377' column='1'/>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='377' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='firmware_request_nowarn' mangled-name='firmware_request_nowarn' filepath='drivers/base/firmware_loader/main.c' line='896' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='firmware_request_nowarn'>
@@ -118155,8 +113537,8 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='flow_keys_basic_dissector' type-id='379be6ec' mangled-name='flow_keys_basic_dissector' visibility='default' filepath='net/core/flow_dissector.c' line='1796' column='1' elf-symbol-id='flow_keys_basic_dissector'/>
-      <function-decl name='flush_dcache_page' mangled-name='flush_dcache_page' filepath='arch/arm64/include/asm/cacheflush.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_dcache_page'>
-        <parameter type-id='02f11ed4'/>
+      <function-decl name='flush_dcache_page' mangled-name='flush_dcache_page' filepath='arch/arm64/mm/flush.c' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_dcache_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='arch/arm64/mm/flush.c' line='69' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='flush_delayed_work' mangled-name='flush_delayed_work' filepath='kernel/workqueue.c' line='3214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_delayed_work'>
@@ -118167,8 +113549,8 @@
         <parameter type-id='83c1bde6' name='work' filepath='kernel/workqueue.c' line='3094' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='flush_workqueue' mangled-name='flush_workqueue' filepath='include/linux/workqueue.h' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_workqueue'>
-        <parameter type-id='242e3d19'/>
+      <function-decl name='flush_workqueue' mangled-name='flush_workqueue' filepath='kernel/workqueue.c' line='2797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='flush_workqueue'>
+        <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='2797' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='fpsimd_context_busy' type-id='b50a4934' mangled-name='fpsimd_context_busy' visibility='default' filepath='arch/arm64/kernel/fpsimd.c' line='166' column='1' elf-symbol-id='fpsimd_context_busy'/>
@@ -118196,36 +113578,36 @@
         <parameter type-id='bf4bdb64' name='ops' filepath='drivers/iommu/io-pgtable.c' line='59' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_irq' mangled-name='free_irq' filepath='include/linux/interrupt.h' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_irq'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='free_irq' mangled-name='free_irq' filepath='kernel/irq/manage.c' line='1888' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='1888' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='1888' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='free_netdev' mangled-name='free_netdev' filepath='include/linux/netdevice.h' line='2920' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_netdev'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='free_netdev' mangled-name='free_netdev' filepath='net/core/dev.c' line='10684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_netdev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10684' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_pages' mangled-name='free_pages' filepath='include/linux/gfp.h' line='619' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='free_pages' mangled-name='free_pages' filepath='mm/page_alloc.c' line='5228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages'>
+        <parameter type-id='7359adad' name='addr' filepath='mm/page_alloc.c' line='5228' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5228' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_pages_exact' mangled-name='free_pages_exact' filepath='include/linux/gfp.h' line='609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages_exact'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='free_pages_exact' mangled-name='free_pages_exact' filepath='mm/page_alloc.c' line='5427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages_exact'>
+        <parameter type-id='eaa32e2f' name='virt' filepath='mm/page_alloc.c' line='5427' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='5427' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_percpu' mangled-name='free_percpu' filepath='include/linux/percpu.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='free_percpu' mangled-name='free_percpu' filepath='mm/percpu.c' line='2080' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu'>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='mm/percpu.c' line='2080' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_percpu_irq' mangled-name='free_percpu_irq' filepath='include/linux/interrupt.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu_irq'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='free_percpu_irq' mangled-name='free_percpu_irq' filepath='kernel/irq/manage.c' line='2392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2392' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2392' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='freezing_slow_path' mangled-name='freezing_slow_path' filepath='include/linux/freezer.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freezing_slow_path'>
-        <parameter type-id='f23e2572'/>
+      <function-decl name='freezing_slow_path' mangled-name='freezing_slow_path' filepath='kernel/freezer.c' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freezing_slow_path'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/freezer.c' line='41' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='freq_qos_add_request' mangled-name='freq_qos_add_request' filepath='kernel/power/qos.c' line='531' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='freq_qos_add_request'>
@@ -118260,8 +113642,8 @@
         <parameter type-id='f0981eeb' name='len' filepath='fs/namei.c' line='2055' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='fwnode_get_name' mangled-name='fwnode_get_name' filepath='include/linux/property.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_get_name'>
-        <parameter type-id='7837cd88'/>
+      <function-decl name='fwnode_get_name' mangled-name='fwnode_get_name' filepath='drivers/base/property.c' line='565' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_get_name'>
+        <parameter type-id='7837cd88' name='fwnode' filepath='drivers/base/property.c' line='565' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
       <function-decl name='fwnode_gpiod_get_index' mangled-name='fwnode_gpiod_get_index' filepath='drivers/gpio/gpiolib.c' line='3783' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_gpiod_get_index'>
@@ -118272,12 +113654,12 @@
         <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib.c' line='3786' column='1'/>
         <return type-id='26760480'/>
       </function-decl>
-      <function-decl name='fwnode_handle_get' mangled-name='fwnode_handle_get' filepath='include/linux/property.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_get'>
-        <parameter type-id='4a935625'/>
+      <function-decl name='fwnode_handle_get' mangled-name='fwnode_handle_get' filepath='drivers/base/property.c' line='814' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_get'>
+        <parameter type-id='4a935625' name='fwnode' filepath='drivers/base/property.c' line='814' column='1'/>
         <return type-id='4a935625'/>
       </function-decl>
-      <function-decl name='fwnode_handle_put' mangled-name='fwnode_handle_put' filepath='include/linux/property.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_put'>
-        <parameter type-id='4a935625'/>
+      <function-decl name='fwnode_handle_put' mangled-name='fwnode_handle_put' filepath='drivers/base/property.c' line='831' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_put'>
+        <parameter type-id='4a935625' name='fwnode' filepath='drivers/base/property.c' line='831' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='fwnode_property_present' mangled-name='fwnode_property_present' filepath='drivers/base/property.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_property_present'>
@@ -118298,39 +113680,39 @@
         <parameter type-id='b59d7dce' name='nval' filepath='drivers/base/property.c' line='318' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gcd' mangled-name='gcd' filepath='include/linux/gcd.h' line='7' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gcd'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='gcd' mangled-name='gcd' filepath='lib/math/gcd.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gcd'>
+        <parameter type-id='7359adad' name='a' filepath='lib/math/gcd.c' line='23' column='1'/>
+        <parameter type-id='7359adad' name='b' filepath='lib/math/gcd.c' line='23' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='gen_pool_add_owner' mangled-name='gen_pool_add_owner' filepath='include/linux/genalloc.h' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_add_owner'>
-        <parameter type-id='75b9415a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='2522883d'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='eaa32e2f'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='gen_pool_alloc_algo_owner' mangled-name='gen_pool_alloc_algo_owner' filepath='include/linux/genalloc.h' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_alloc_algo_owner'>
-        <parameter type-id='75b9415a'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='00278b91'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='63e171df'/>
+      <function-decl name='gen_pool_add_owner' mangled-name='gen_pool_add_owner' filepath='lib/genalloc.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_add_owner'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='183' column='1'/>
+        <parameter type-id='7359adad' name='virt' filepath='lib/genalloc.c' line='183' column='1'/>
+        <parameter type-id='2522883d' name='phys' filepath='lib/genalloc.c' line='183' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/genalloc.c' line='184' column='1'/>
+        <parameter type-id='95e97e5e' name='nid' filepath='lib/genalloc.c' line='184' column='1'/>
+        <parameter type-id='eaa32e2f' name='owner' filepath='lib/genalloc.c' line='184' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gen_pool_alloc_algo_owner' mangled-name='gen_pool_alloc_algo_owner' filepath='lib/genalloc.c' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_alloc_algo_owner'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='276' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/genalloc.c' line='276' column='1'/>
+        <parameter type-id='00278b91' name='algo' filepath='lib/genalloc.c' line='277' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/genalloc.c' line='277' column='1'/>
+        <parameter type-id='63e171df' name='owner' filepath='lib/genalloc.c' line='277' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='gen_pool_avail' mangled-name='gen_pool_avail' filepath='include/linux/genalloc.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_avail'>
-        <parameter type-id='75b9415a'/>
+      <function-decl name='gen_pool_avail' mangled-name='gen_pool_avail' filepath='lib/genalloc.c' line='579' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_avail'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='579' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
-      <function-decl name='gen_pool_create' mangled-name='gen_pool_create' filepath='include/linux/genalloc.h' line='96' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_create'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='gen_pool_create' mangled-name='gen_pool_create' filepath='lib/genalloc.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_create'>
+        <parameter type-id='95e97e5e' name='min_alloc_order' filepath='lib/genalloc.c' line='152' column='1'/>
+        <parameter type-id='95e97e5e' name='nid' filepath='lib/genalloc.c' line='152' column='1'/>
         <return type-id='75b9415a'/>
       </function-decl>
-      <function-decl name='gen_pool_destroy' mangled-name='gen_pool_destroy' filepath='include/linux/genalloc.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_destroy'>
-        <parameter type-id='75b9415a'/>
+      <function-decl name='gen_pool_destroy' mangled-name='gen_pool_destroy' filepath='lib/genalloc.c' line='241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_destroy'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='241' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='gen_pool_dma_alloc_align' mangled-name='gen_pool_dma_alloc_align' filepath='lib/genalloc.c' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_dma_alloc_align'>
@@ -118357,21 +113739,21 @@
         <parameter type-id='7359adad' name='start_addr' filepath='lib/genalloc.c' line='665' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='gen_pool_free_owner' mangled-name='gen_pool_free_owner' filepath='include/linux/genalloc.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_free_owner'>
-        <parameter type-id='75b9415a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='63e171df'/>
+      <function-decl name='gen_pool_free_owner' mangled-name='gen_pool_free_owner' filepath='lib/genalloc.c' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_free_owner'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='486' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='lib/genalloc.c' line='486' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/genalloc.c' line='486' column='1'/>
+        <parameter type-id='63e171df' name='owner' filepath='lib/genalloc.c' line='487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gen_pool_has_addr' mangled-name='gen_pool_has_addr' filepath='include/linux/genalloc.h' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_has_addr'>
-        <parameter type-id='75b9415a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='gen_pool_has_addr' mangled-name='gen_pool_has_addr' filepath='lib/genalloc.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_has_addr'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='552' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='lib/genalloc.c' line='552' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/genalloc.c' line='553' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='gen_pool_size' mangled-name='gen_pool_size' filepath='include/linux/genalloc.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_size'>
-        <parameter type-id='75b9415a'/>
+      <function-decl name='gen_pool_size' mangled-name='gen_pool_size' filepath='lib/genalloc.c' line='598' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gen_pool_size'>
+        <parameter type-id='75b9415a' name='pool' filepath='lib/genalloc.c' line='598' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
       <function-decl name='generic_delete_inode' mangled-name='generic_delete_inode' filepath='fs/inode.c' line='1600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_delete_inode'>
@@ -118388,8 +113770,8 @@
         <parameter type-id='95e97e5e' name='whence' filepath='fs/read_write.c' line='144' column='1'/>
         <return type-id='69bf7bee'/>
       </function-decl>
-      <function-decl name='generic_handle_irq' mangled-name='generic_handle_irq' filepath='include/linux/irqdesc.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_handle_irq'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='generic_handle_irq' mangled-name='generic_handle_irq' filepath='kernel/irq/irqdesc.c' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_handle_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/irqdesc.c' line='638' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='generic_iommu_put_resv_regions' mangled-name='generic_iommu_put_resv_regions' filepath='drivers/iommu/iommu.c' line='2816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='generic_iommu_put_resv_regions'>
@@ -118412,31 +113794,31 @@
         <parameter type-id='3eb7c31c' name='flags' filepath='net/netlink/genetlink.c' line='1462' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='genl_register_family' mangled-name='genl_register_family' filepath='include/net/genetlink.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_register_family'>
-        <parameter type-id='8f6b937a'/>
+      <function-decl name='genl_register_family' mangled-name='genl_register_family' filepath='net/netlink/genetlink.c' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_register_family'>
+        <parameter type-id='8f6b937a' name='family' filepath='net/netlink/genetlink.c' line='392' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='genl_unregister_family' mangled-name='genl_unregister_family' filepath='include/net/genetlink.h' line='187' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_unregister_family'>
-        <parameter type-id='63d7819b'/>
+      <function-decl name='genl_unregister_family' mangled-name='genl_unregister_family' filepath='net/netlink/genetlink.c' line='461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genl_unregister_family'>
+        <parameter type-id='63d7819b' name='family' filepath='net/netlink/genetlink.c' line='461' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='genlmsg_put' mangled-name='genlmsg_put' filepath='include/net/genetlink.h' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genlmsg_put'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='63d7819b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f9b06939'/>
+      <function-decl name='genlmsg_put' mangled-name='genlmsg_put' filepath='net/netlink/genetlink.c' line='496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='genlmsg_put'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/netlink/genetlink.c' line='496' column='1'/>
+        <parameter type-id='19c2251e' name='portid' filepath='net/netlink/genetlink.c' line='496' column='1'/>
+        <parameter type-id='19c2251e' name='seq' filepath='net/netlink/genetlink.c' line='496' column='1'/>
+        <parameter type-id='63d7819b' name='family' filepath='net/netlink/genetlink.c' line='497' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/netlink/genetlink.c' line='497' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='net/netlink/genetlink.c' line='497' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='get_cpu_device' mangled-name='get_cpu_device' filepath='include/linux/cpu.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_device'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='get_cpu_device' mangled-name='get_cpu_device' filepath='drivers/base/cpu.c' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_device'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/base/cpu.c' line='391' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='get_cpu_idle_time' mangled-name='get_cpu_idle_time' filepath='include/linux/cpufreq.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_idle_time'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='3df9fd28'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='get_cpu_idle_time' mangled-name='get_cpu_idle_time' filepath='drivers/cpufreq/cpufreq.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_idle_time'>
+        <parameter type-id='f0981eeb' name='cpu' filepath='drivers/cpufreq/cpufreq.c' line='152' column='1'/>
+        <parameter type-id='3df9fd28' name='wall' filepath='drivers/cpufreq/cpufreq.c' line='152' column='1'/>
+        <parameter type-id='95e97e5e' name='io_busy' filepath='drivers/cpufreq/cpufreq.c' line='152' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
       <function-decl name='get_cpu_idle_time_us' mangled-name='get_cpu_idle_time_us' filepath='kernel/time/tick-sched.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_cpu_idle_time_us'>
@@ -118449,8 +113831,8 @@
         <parameter type-id='3df9fd28' name='last_update_time' filepath='kernel/time/tick-sched.c' line='635' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='get_device' mangled-name='get_device' filepath='include/linux/device.h' line='930' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_device'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='get_device' mangled-name='get_device' filepath='drivers/base/core.c' line='3339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3339' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
       <function-decl name='get_device_system_crosststamp' mangled-name='get_device_system_crosststamp' filepath='kernel/time/timekeeping.c' line='1191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_device_system_crosststamp'>
@@ -118460,29 +113842,29 @@
         <parameter type-id='587b4de3' name='xtstamp' filepath='kernel/time/timekeeping.c' line='1197' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_governor_parent_kobj' mangled-name='get_governor_parent_kobj' filepath='include/linux/cpufreq.h' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_governor_parent_kobj'>
-        <parameter type-id='343c3ae4'/>
+      <function-decl name='get_governor_parent_kobj' mangled-name='get_governor_parent_kobj' filepath='drivers/cpufreq/cpufreq.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_governor_parent_kobj'>
+        <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/cpufreq.c' line='118' column='1'/>
         <return type-id='d30bdc51'/>
       </function-decl>
-      <function-decl name='get_next_ino' mangled-name='get_next_ino' filepath='include/linux/fs.h' line='2977' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_next_ino'>
+      <function-decl name='get_next_ino' mangled-name='get_next_ino' filepath='fs/inode.c' line='894' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_next_ino'>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='get_pid_task' mangled-name='get_pid_task' filepath='include/linux/pid.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_pid_task'>
-        <parameter type-id='b94e5398'/>
-        <parameter type-id='ce78cf46'/>
+      <function-decl name='get_pid_task' mangled-name='get_pid_task' filepath='kernel/pid.c' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_pid_task'>
+        <parameter type-id='b94e5398' name='pid' filepath='kernel/pid.c' line='449' column='1'/>
+        <parameter type-id='ce78cf46' name='type' filepath='kernel/pid.c' line='449' column='1'/>
         <return type-id='f23e2572'/>
       </function-decl>
-      <function-decl name='get_random_bytes' mangled-name='get_random_bytes' filepath='include/linux/random.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_bytes'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='get_random_bytes' mangled-name='get_random_bytes' filepath='drivers/char/random.c' line='1577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_bytes'>
+        <parameter type-id='eaa32e2f' name='buf' filepath='drivers/char/random.c' line='1577' column='1'/>
+        <parameter type-id='95e97e5e' name='nbytes' filepath='drivers/char/random.c' line='1577' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='get_random_bytes_arch' mangled-name='get_random_bytes_arch' filepath='include/linux/random.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_bytes_arch'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='get_random_bytes_arch' mangled-name='get_random_bytes_arch' filepath='drivers/char/random.c' line='1749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_bytes_arch'>
+        <parameter type-id='eaa32e2f' name='buf' filepath='drivers/char/random.c' line='1749' column='1'/>
+        <parameter type-id='95e97e5e' name='nbytes' filepath='drivers/char/random.c' line='1749' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_random_u32' mangled-name='get_random_u32' filepath='include/linux/random.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_u32'>
+      <function-decl name='get_random_u32' mangled-name='get_random_u32' filepath='drivers/char/random.c' line='2226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_random_u32'>
         <return type-id='19c2251e'/>
       </function-decl>
       <function-decl name='get_sg_io_hdr' mangled-name='get_sg_io_hdr' filepath='block/scsi_ioctl.c' line='591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_sg_io_hdr'>
@@ -118505,33 +113887,33 @@
         <parameter type-id='30341fa1' name='fill_super' filepath='fs/super.c' line='1226' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_unused_fd_flags' mangled-name='get_unused_fd_flags' filepath='include/linux/file.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_unused_fd_flags'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='get_unused_fd_flags' mangled-name='get_unused_fd_flags' filepath='fs/file.c' line='561' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_unused_fd_flags'>
+        <parameter type-id='f0981eeb' name='flags' filepath='fs/file.c' line='561' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='include/linux/mm.h' line='1884' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='9f93c9da'/>
-        <parameter type-id='8b6fdee4'/>
+      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1894' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1894' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1894' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1895' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1895' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1896' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='include/linux/mm.h' line='1899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='9f93c9da'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='include/linux/mm.h' line='1876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
-        <parameter type-id='df4b7819'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='9f93c9da'/>
-        <parameter type-id='8b6fdee4'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2789' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2789' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2790' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2790' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1847' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1848' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1848' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1849' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1849' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1850' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1850' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='get_vaddr_frames' mangled-name='get_vaddr_frames' filepath='mm/frame_vector.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_vaddr_frames'>
@@ -118541,14 +113923,14 @@
         <parameter type-id='d9fbdc06' name='vec' filepath='mm/frame_vector.c' line='35' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_zeroed_page' mangled-name='get_zeroed_page' filepath='include/linux/gfp.h' line='606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_zeroed_page'>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='get_zeroed_page' mangled-name='get_zeroed_page' filepath='mm/page_alloc.c' line='5204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_zeroed_page'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5204' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <var-decl name='gic_nonsecure_priorities' type-id='237c0d27' mangled-name='gic_nonsecure_priorities' visibility='default' filepath='drivers/irqchip/irq-gic-v3.c' line='92' column='1' elf-symbol-id='gic_nonsecure_priorities'/>
-      <function-decl name='glob_match' mangled-name='glob_match' filepath='include/linux/glob.h' line='8' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='glob_match'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='glob_match' mangled-name='glob_match' filepath='lib/glob.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='glob_match'>
+        <parameter type-id='80f4b756' name='pat' filepath='lib/glob.c' line='40' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='lib/glob.c' line='40' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='gnss_allocate_device' mangled-name='gnss_allocate_device' filepath='drivers/gnss/core.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_allocate_device'>
@@ -118573,19 +113955,19 @@
         <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='283' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gov_attr_set_get' mangled-name='gov_attr_set_get' filepath='include/linux/cpufreq.h' line='647' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_get'>
-        <parameter type-id='902fed1a'/>
-        <parameter type-id='e84b031a'/>
+      <function-decl name='gov_attr_set_get' mangled-name='gov_attr_set_get' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_get'>
+        <parameter type-id='902fed1a' name='attr_set' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='57' column='1'/>
+        <parameter type-id='e84b031a' name='list_node' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='57' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gov_attr_set_init' mangled-name='gov_attr_set_init' filepath='include/linux/cpufreq.h' line='646' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_init'>
-        <parameter type-id='902fed1a'/>
-        <parameter type-id='e84b031a'/>
+      <function-decl name='gov_attr_set_init' mangled-name='gov_attr_set_init' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_init'>
+        <parameter type-id='902fed1a' name='attr_set' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='48' column='1'/>
+        <parameter type-id='e84b031a' name='list_node' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='48' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gov_attr_set_put' mangled-name='gov_attr_set_put' filepath='include/linux/cpufreq.h' line='648' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_put'>
-        <parameter type-id='902fed1a'/>
-        <parameter type-id='e84b031a'/>
+      <function-decl name='gov_attr_set_put' mangled-name='gov_attr_set_put' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='66' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_put'>
+        <parameter type-id='902fed1a' name='attr_set' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='66' column='1'/>
+        <parameter type-id='e84b031a' name='list_node' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='66' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
       <var-decl name='governor_sysfs_ops' type-id='0f840455' mangled-name='governor_sysfs_ops' visibility='default' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='42' column='1' elf-symbol-id='governor_sysfs_ops'/>
@@ -118593,34 +113975,34 @@
         <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-legacy.c' line='9' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gpio_request' mangled-name='gpio_request' filepath='include/asm-generic/gpio.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='gpio_request' mangled-name='gpio_request' filepath='drivers/gpio/gpiolib-legacy.c' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request'>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-legacy.c' line='68' column='1'/>
+        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib-legacy.c' line='68' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpio_request_one' mangled-name='gpio_request_one' filepath='include/asm-generic/gpio.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request_one'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='gpio_request_one' mangled-name='gpio_request_one' filepath='drivers/gpio/gpiolib-legacy.c' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_request_one'>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib-legacy.c' line='21' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/gpio/gpiolib-legacy.c' line='21' column='1'/>
+        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib-legacy.c' line='21' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpio_to_desc' mangled-name='gpio_to_desc' filepath='include/linux/gpio/consumer.h' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_to_desc'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='gpio_to_desc' mangled-name='gpio_to_desc' filepath='drivers/gpio/gpiolib.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpio_to_desc'>
+        <parameter type-id='f0981eeb' name='gpio' filepath='drivers/gpio/gpiolib.c' line='108' column='1'/>
         <return type-id='26760480'/>
       </function-decl>
-      <function-decl name='gpiochip_add_data_with_key' mangled-name='gpiochip_add_data_with_key' filepath='include/linux/gpio/driver.h' line='501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_add_data_with_key'>
-        <parameter type-id='e324928d'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='a57283f9'/>
-        <parameter type-id='a57283f9'/>
+      <function-decl name='gpiochip_add_data_with_key' mangled-name='gpiochip_add_data_with_key' filepath='drivers/gpio/gpiolib.c' line='571' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_add_data_with_key'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='571' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/gpio/gpiolib.c' line='571' column='1'/>
+        <parameter type-id='a57283f9' name='lock_key' filepath='drivers/gpio/gpiolib.c' line='572' column='1'/>
+        <parameter type-id='a57283f9' name='request_key' filepath='drivers/gpio/gpiolib.c' line='573' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpiochip_add_pin_range' mangled-name='gpiochip_add_pin_range' filepath='include/linux/gpio/driver.h' line='736' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_add_pin_range'>
-        <parameter type-id='e324928d'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='gpiochip_add_pin_range' mangled-name='gpiochip_add_pin_range' filepath='drivers/gpio/gpiolib.c' line='1918' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_add_pin_range'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='1918' column='1'/>
+        <parameter type-id='80f4b756' name='pinctl_name' filepath='drivers/gpio/gpiolib.c' line='1918' column='1'/>
+        <parameter type-id='f0981eeb' name='gpio_offset' filepath='drivers/gpio/gpiolib.c' line='1919' column='1'/>
+        <parameter type-id='f0981eeb' name='pin_offset' filepath='drivers/gpio/gpiolib.c' line='1919' column='1'/>
+        <parameter type-id='f0981eeb' name='npins' filepath='drivers/gpio/gpiolib.c' line='1920' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='gpiochip_generic_config' mangled-name='gpiochip_generic_config' filepath='drivers/gpio/gpiolib.c' line='1839' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_generic_config'>
@@ -118648,9 +114030,9 @@
         <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='463' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='gpiochip_lock_as_irq' mangled-name='gpiochip_lock_as_irq' filepath='include/linux/gpio/driver.h' line='778' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_lock_as_irq'>
-        <parameter type-id='e324928d'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='gpiochip_lock_as_irq' mangled-name='gpiochip_lock_as_irq' filepath='drivers/gpio/gpiolib.c' line='3231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_lock_as_irq'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='3231' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='3231' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='gpiochip_populate_parent_fwspec_fourcell' mangled-name='gpiochip_populate_parent_fwspec_fourcell' filepath='drivers/gpio/gpiolib.c' line='1266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_populate_parent_fwspec_fourcell'>
@@ -118659,13 +114041,13 @@
         <parameter type-id='f0981eeb' name='parent_type' filepath='drivers/gpio/gpiolib.c' line='1268' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='gpiochip_remove' mangled-name='gpiochip_remove' filepath='include/linux/gpio/driver.h' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_remove'>
-        <parameter type-id='e324928d'/>
+      <function-decl name='gpiochip_remove' mangled-name='gpiochip_remove' filepath='drivers/gpio/gpiolib.c' line='815' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_remove'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='815' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gpiochip_unlock_as_irq' mangled-name='gpiochip_unlock_as_irq' filepath='include/linux/gpio/driver.h' line='779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_unlock_as_irq'>
-        <parameter type-id='e324928d'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='gpiochip_unlock_as_irq' mangled-name='gpiochip_unlock_as_irq' filepath='drivers/gpio/gpiolib.c' line='3285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_unlock_as_irq'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='3285' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='3285' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='gpiod_cansleep' mangled-name='gpiod_cansleep' filepath='drivers/gpio/gpiolib.c' line='3160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_cansleep'>
@@ -118755,13 +114137,13 @@
         <parameter type-id='cf536864' name='line_num' filepath='drivers/usb/gadget/function/u_serial.c' line='1261' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gserial_connect' mangled-name='gserial_connect' filepath='drivers/usb/gadget/function/u_serial.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_connect'>
-        <parameter type-id='3921c1a0'/>
-        <parameter type-id='f9b06939'/>
+      <function-decl name='gserial_connect' mangled-name='gserial_connect' filepath='drivers/usb/gadget/function/u_serial.c' line='1293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_connect'>
+        <parameter type-id='3921c1a0' name='gser' filepath='drivers/usb/gadget/function/u_serial.c' line='1293' column='1'/>
+        <parameter type-id='f9b06939' name='port_num' filepath='drivers/usb/gadget/function/u_serial.c' line='1293' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gserial_disconnect' mangled-name='gserial_disconnect' filepath='drivers/usb/gadget/function/u_serial.h' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_disconnect'>
-        <parameter type-id='3921c1a0'/>
+      <function-decl name='gserial_disconnect' mangled-name='gserial_disconnect' filepath='drivers/usb/gadget/function/u_serial.c' line='1369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gserial_disconnect'>
+        <parameter type-id='3921c1a0' name='gser' filepath='drivers/usb/gadget/function/u_serial.c' line='1369' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='guid_gen' mangled-name='guid_gen' filepath='lib/uuid.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='guid_gen'>
@@ -118806,10 +114188,10 @@
         <parameter type-id='80f4b756' name='name' filepath='fs/namei.c' line='2076' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='have_governor_per_policy' mangled-name='have_governor_per_policy' filepath='include/linux/cpufreq.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='have_governor_per_policy'>
+      <function-decl name='have_governor_per_policy' mangled-name='have_governor_per_policy' filepath='drivers/cpufreq/cpufreq.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='have_governor_per_policy'>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='hci_alloc_dev' mangled-name='hci_alloc_dev' filepath='include/net/bluetooth/hci_core.h' line='1203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_alloc_dev'>
+      <function-decl name='hci_alloc_dev' mangled-name='hci_alloc_dev' filepath='net/bluetooth/hci_core.c' line='3589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_alloc_dev'>
         <return type-id='9ad862e7'/>
       </function-decl>
       <function-decl name='hci_cmd_sync' mangled-name='hci_cmd_sync' filepath='net/bluetooth/hci_core.c' line='4135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_cmd_sync'>
@@ -118824,22 +114206,22 @@
         <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3701' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='hci_recv_diag' mangled-name='hci_recv_diag' filepath='include/net/bluetooth/hci_core.h' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_diag'>
-        <parameter type-id='9ad862e7'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='hci_recv_diag' mangled-name='hci_recv_diag' filepath='net/bluetooth/hci_core.c' line='3964' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_diag'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3964' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/bluetooth/hci_core.c' line='3964' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hci_recv_frame' mangled-name='hci_recv_frame' filepath='include/net/bluetooth/hci_core.h' line='1211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_frame'>
-        <parameter type-id='9ad862e7'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='hci_recv_frame' mangled-name='hci_recv_frame' filepath='net/bluetooth/hci_core.c' line='3934' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_recv_frame'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3934' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/bluetooth/hci_core.c' line='3934' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hci_register_dev' mangled-name='hci_register_dev' filepath='include/net/bluetooth/hci_core.h' line='1205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_register_dev'>
-        <parameter type-id='9ad862e7'/>
+      <function-decl name='hci_register_dev' mangled-name='hci_register_dev' filepath='net/bluetooth/hci_core.c' line='3709' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_register_dev'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3709' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hci_unregister_dev' mangled-name='hci_unregister_dev' filepath='include/net/bluetooth/hci_core.h' line='1206' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_unregister_dev'>
-        <parameter type-id='9ad862e7'/>
+      <function-decl name='hci_unregister_dev' mangled-name='hci_unregister_dev' filepath='net/bluetooth/hci_core.c' line='3824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hci_unregister_dev'>
+        <parameter type-id='9ad862e7' name='hdev' filepath='net/bluetooth/hci_core.c' line='3824' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='hdmi_audio_infoframe_init' mangled-name='hdmi_audio_infoframe_init' filepath='drivers/video/hdmi.c' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hdmi_audio_infoframe_init'>
@@ -118868,37 +114250,37 @@
         <parameter type-id='b59d7dce' name='size' filepath='drivers/video/hdmi.c' line='945' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
-      <function-decl name='hex2bin' mangled-name='hex2bin' filepath='include/linux/kernel.h' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex2bin'>
-        <parameter type-id='8bff8096'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='hex2bin' mangled-name='hex2bin' filepath='lib/hexdump.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex2bin'>
+        <parameter type-id='8bff8096' name='dst' filepath='lib/hexdump.c' line='45' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/hexdump.c' line='45' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/hexdump.c' line='45' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='hex_asc_upper' type-id='8945ea40' mangled-name='hex_asc_upper' visibility='default' filepath='lib/hexdump.c' line='16' column='1' elf-symbol-id='hex_asc_upper'/>
-      <function-decl name='hex_dump_to_buffer' mangled-name='hex_dump_to_buffer' filepath='include/linux/printk.h' line='577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex_dump_to_buffer'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='hex_dump_to_buffer' mangled-name='hex_dump_to_buffer' filepath='lib/hexdump.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex_dump_to_buffer'>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/hexdump.c' line='106' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='lib/hexdump.c' line='106' column='1'/>
+        <parameter type-id='95e97e5e' name='rowsize' filepath='lib/hexdump.c' line='106' column='1'/>
+        <parameter type-id='95e97e5e' name='groupsize' filepath='lib/hexdump.c' line='106' column='1'/>
+        <parameter type-id='26a90f95' name='linebuf' filepath='lib/hexdump.c' line='107' column='1'/>
+        <parameter type-id='b59d7dce' name='linebuflen' filepath='lib/hexdump.c' line='107' column='1'/>
+        <parameter type-id='b50a4934' name='ascii' filepath='lib/hexdump.c' line='107' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hex_to_bin' mangled-name='hex_to_bin' filepath='include/linux/kernel.h' line='638' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex_to_bin'>
-        <parameter type-id='a84c031d'/>
+      <function-decl name='hex_to_bin' mangled-name='hex_to_bin' filepath='lib/hexdump.c' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hex_to_bin'>
+        <parameter type-id='a84c031d' name='ch' filepath='lib/hexdump.c' line='26' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hid_add_device' mangled-name='hid_add_device' filepath='include/linux/hid.h' line='863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_add_device'>
-        <parameter type-id='37175e4d'/>
+      <function-decl name='hid_add_device' mangled-name='hid_add_device' filepath='drivers/hid/hid-core.c' line='2388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_add_device'>
+        <parameter type-id='37175e4d' name='hdev' filepath='drivers/hid/hid-core.c' line='2388' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hid_allocate_device' mangled-name='hid_allocate_device' filepath='include/linux/hid.h' line='903' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_allocate_device'>
+      <function-decl name='hid_allocate_device' mangled-name='hid_allocate_device' filepath='drivers/hid/hid-core.c' line='2458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_allocate_device'>
         <return type-id='37175e4d'/>
       </function-decl>
       <var-decl name='hid_debug' type-id='95e97e5e' mangled-name='hid_debug' visibility='default' filepath='drivers/hid/hid-core.c' line='44' column='1' elf-symbol-id='hid_debug'/>
-      <function-decl name='hid_destroy_device' mangled-name='hid_destroy_device' filepath='include/linux/hid.h' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_destroy_device'>
-        <parameter type-id='37175e4d'/>
+      <function-decl name='hid_destroy_device' mangled-name='hid_destroy_device' filepath='drivers/hid/hid-core.c' line='2504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_destroy_device'>
+        <parameter type-id='37175e4d' name='hdev' filepath='drivers/hid/hid-core.c' line='2504' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='hid_input_report' mangled-name='hid_input_report' filepath='drivers/hid/hid-core.c' line='1810' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_input_report'>
@@ -118909,30 +114291,30 @@
         <parameter type-id='95e97e5e' name='interrupt' filepath='drivers/hid/hid-core.c' line='1810' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hid_parse_report' mangled-name='hid_parse_report' filepath='include/linux/hid.h' line='907' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_parse_report'>
-        <parameter type-id='37175e4d'/>
-        <parameter type-id='474e5dcc'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='hid_parse_report' mangled-name='hid_parse_report' filepath='drivers/hid/hid-core.c' line='937' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hid_parse_report'>
+        <parameter type-id='37175e4d' name='hid' filepath='drivers/hid/hid-core.c' line='937' column='1'/>
+        <parameter type-id='474e5dcc' name='start' filepath='drivers/hid/hid-core.c' line='937' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='drivers/hid/hid-core.c' line='937' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hrtimer_active' mangled-name='hrtimer_active' filepath='include/linux/hrtimer.h' line='456' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_active'>
-        <parameter type-id='1ce53783'/>
+      <function-decl name='hrtimer_active' mangled-name='hrtimer_active' filepath='kernel/time/hrtimer.c' line='1502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_active'>
+        <parameter type-id='1ce53783' name='timer' filepath='kernel/time/hrtimer.c' line='1502' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='hrtimer_cancel' mangled-name='hrtimer_cancel' filepath='include/linux/hrtimer.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_cancel'>
-        <parameter type-id='08c8d0fa'/>
+      <function-decl name='hrtimer_cancel' mangled-name='hrtimer_cancel' filepath='kernel/time/hrtimer.c' line='1336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_cancel'>
+        <parameter type-id='08c8d0fa' name='timer' filepath='kernel/time/hrtimer.c' line='1336' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hrtimer_forward' mangled-name='hrtimer_forward' filepath='include/linux/hrtimer.h' line='483' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_forward'>
-        <parameter type-id='08c8d0fa'/>
-        <parameter type-id='fbc017ef'/>
-        <parameter type-id='fbc017ef'/>
+      <function-decl name='hrtimer_forward' mangled-name='hrtimer_forward' filepath='kernel/time/hrtimer.c' line='935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_forward'>
+        <parameter type-id='08c8d0fa' name='timer' filepath='kernel/time/hrtimer.c' line='935' column='1'/>
+        <parameter type-id='fbc017ef' name='now' filepath='kernel/time/hrtimer.c' line='935' column='1'/>
+        <parameter type-id='fbc017ef' name='interval' filepath='kernel/time/hrtimer.c' line='935' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='hrtimer_init' mangled-name='hrtimer_init' filepath='include/linux/hrtimer.h' line='374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_init'>
-        <parameter type-id='08c8d0fa'/>
-        <parameter type-id='a1c3b834'/>
-        <parameter type-id='88326653'/>
+      <function-decl name='hrtimer_init' mangled-name='hrtimer_init' filepath='kernel/time/hrtimer.c' line='1487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_init'>
+        <parameter type-id='08c8d0fa' name='timer' filepath='kernel/time/hrtimer.c' line='1487' column='1'/>
+        <parameter type-id='a1c3b834' name='clock_id' filepath='kernel/time/hrtimer.c' line='1487' column='1'/>
+        <parameter type-id='88326653' name='mode' filepath='kernel/time/hrtimer.c' line='1488' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='hrtimer_init_sleeper' mangled-name='hrtimer_init_sleeper' filepath='kernel/time/hrtimer.c' line='1905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_init_sleeper'>
@@ -118946,28 +114328,28 @@
         <parameter type-id='88326653' name='mode' filepath='kernel/time/hrtimer.c' line='1851' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='hrtimer_start_range_ns' mangled-name='hrtimer_start_range_ns' filepath='include/linux/hrtimer.h' line='406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_start_range_ns'>
-        <parameter type-id='08c8d0fa'/>
-        <parameter type-id='fbc017ef'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='9bedc94f'/>
+      <function-decl name='hrtimer_start_range_ns' mangled-name='hrtimer_start_range_ns' filepath='kernel/time/hrtimer.c' line='1178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_start_range_ns'>
+        <parameter type-id='08c8d0fa' name='timer' filepath='kernel/time/hrtimer.c' line='1178' column='1'/>
+        <parameter type-id='fbc017ef' name='tim' filepath='kernel/time/hrtimer.c' line='1178' column='1'/>
+        <parameter type-id='91ce1af9' name='delta_ns' filepath='kernel/time/hrtimer.c' line='1179' column='1'/>
+        <parameter type-id='9bedc94f' name='mode' filepath='kernel/time/hrtimer.c' line='1179' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='hrtimer_try_to_cancel' mangled-name='hrtimer_try_to_cancel' filepath='include/linux/hrtimer.h' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_try_to_cancel'>
-        <parameter type-id='08c8d0fa'/>
+      <function-decl name='hrtimer_try_to_cancel' mangled-name='hrtimer_try_to_cancel' filepath='kernel/time/hrtimer.c' line='1214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hrtimer_try_to_cancel'>
+        <parameter type-id='08c8d0fa' name='timer' filepath='kernel/time/hrtimer.c' line='1214' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hvc_alloc' mangled-name='hvc_alloc' filepath='drivers/tty/hvc/hvc_console.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_alloc'>
-        <parameter type-id='8f92235e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f319e2c5'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='hvc_alloc' mangled-name='hvc_alloc' filepath='drivers/tty/hvc/hvc_console.c' line='911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_alloc'>
+        <parameter type-id='8f92235e' name='vtermno' filepath='drivers/tty/hvc/hvc_console.c' line='911' column='1'/>
+        <parameter type-id='95e97e5e' name='data' filepath='drivers/tty/hvc/hvc_console.c' line='911' column='1'/>
+        <parameter type-id='f319e2c5' name='ops' filepath='drivers/tty/hvc/hvc_console.c' line='912' column='1'/>
+        <parameter type-id='95e97e5e' name='outbuf_size' filepath='drivers/tty/hvc/hvc_console.c' line='913' column='1'/>
         <return type-id='352b95f6'/>
       </function-decl>
-      <function-decl name='hvc_instantiate' mangled-name='hvc_instantiate' filepath='drivers/tty/hvc/hvc_console.h' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_instantiate'>
-        <parameter type-id='8f92235e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f319e2c5'/>
+      <function-decl name='hvc_instantiate' mangled-name='hvc_instantiate' filepath='drivers/tty/hvc/hvc_console.c' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_instantiate'>
+        <parameter type-id='8f92235e' name='vtermno' filepath='drivers/tty/hvc/hvc_console.c' line='285' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/tty/hvc/hvc_console.c' line='285' column='1'/>
+        <parameter type-id='f319e2c5' name='ops' filepath='drivers/tty/hvc/hvc_console.c' line='285' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='hvc_kick' mangled-name='hvc_kick' filepath='drivers/tty/hvc/hvc_console.c' line='313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hvc_kick'>
@@ -118989,17 +114371,17 @@
         <parameter type-id='c1547255' name='rng' filepath='drivers/char/hw_random/core.c' line='535' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='hwspin_lock_free' mangled-name='hwspin_lock_free' filepath='include/linux/hwspinlock.h' line='63' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwspin_lock_free'>
-        <parameter type-id='0cb0b26f'/>
+      <function-decl name='hwspin_lock_free' mangled-name='hwspin_lock_free' filepath='drivers/hwspinlock/hwspinlock_core.c' line='800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwspin_lock_free'>
+        <parameter type-id='0cb0b26f' name='hwlock' filepath='drivers/hwspinlock/hwspinlock_core.c' line='800' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='hwspin_lock_request_specific' mangled-name='hwspin_lock_request_specific' filepath='include/linux/hwspinlock.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwspin_lock_request_specific'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='hwspin_lock_request_specific' mangled-name='hwspin_lock_request_specific' filepath='drivers/hwspinlock/hwspinlock_core.c' line='752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hwspin_lock_request_specific'>
+        <parameter type-id='f0981eeb' name='id' filepath='drivers/hwspinlock/hwspinlock_core.c' line='752' column='1'/>
         <return type-id='0cb0b26f'/>
       </function-decl>
       <var-decl name='i2c_adapter_type' type-id='bdae35f4' mangled-name='i2c_adapter_type' visibility='default' filepath='drivers/i2c/i2c-core-base.c' line='1263' column='1' elf-symbol-id='i2c_adapter_type'/>
-      <function-decl name='i2c_add_adapter' mangled-name='i2c_add_adapter' filepath='include/linux/i2c.h' line='848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_add_adapter'>
-        <parameter type-id='b9af02c3'/>
+      <function-decl name='i2c_add_adapter' mangled-name='i2c_add_adapter' filepath='drivers/i2c/i2c-core-base.c' line='1529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_add_adapter'>
+        <parameter type-id='b9af02c3' name='adapter' filepath='drivers/i2c/i2c-core-base.c' line='1529' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='i2c_add_numbered_adapter' mangled-name='i2c_add_numbered_adapter' filepath='drivers/i2c/i2c-core-base.c' line='1578' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_add_numbered_adapter'>
@@ -119008,12 +114390,12 @@
       </function-decl>
       <var-decl name='i2c_bus_type' type-id='b31bfc8a' mangled-name='i2c_bus_type' visibility='default' filepath='drivers/i2c/i2c-core-base.c' line='632' column='1' elf-symbol-id='i2c_bus_type'/>
       <var-decl name='i2c_client_type' type-id='bdae35f4' mangled-name='i2c_client_type' visibility='default' filepath='drivers/i2c/i2c-core-base.c' line='641' column='1' elf-symbol-id='i2c_client_type'/>
-      <function-decl name='i2c_del_adapter' mangled-name='i2c_del_adapter' filepath='include/linux/i2c.h' line='849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_del_adapter'>
-        <parameter type-id='b9af02c3'/>
+      <function-decl name='i2c_del_adapter' mangled-name='i2c_del_adapter' filepath='drivers/i2c/i2c-core-base.c' line='1633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_del_adapter'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='1633' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='i2c_del_driver' mangled-name='i2c_del_driver' filepath='include/linux/i2c.h' line='853' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_del_driver'>
-        <parameter type-id='29ffcb70'/>
+      <function-decl name='i2c_del_driver' mangled-name='i2c_del_driver' filepath='drivers/i2c/i2c-core-base.c' line='1830' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_del_driver'>
+        <parameter type-id='29ffcb70' name='driver' filepath='drivers/i2c/i2c-core-base.c' line='1830' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='i2c_for_each_dev' mangled-name='i2c_for_each_dev' filepath='drivers/i2c/i2c-core-base.c' line='1765' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_for_each_dev'>
@@ -119050,9 +114432,9 @@
         <parameter type-id='1dc6a898' name='default_addr' filepath='drivers/i2c/i2c-core-base.c' line='1089' column='1'/>
         <return type-id='3e31633b'/>
       </function-decl>
-      <function-decl name='i2c_new_client_device' mangled-name='i2c_new_client_device' filepath='include/linux/i2c.h' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_client_device'>
-        <parameter type-id='b9af02c3'/>
-        <parameter type-id='88139c0a'/>
+      <function-decl name='i2c_new_client_device' mangled-name='i2c_new_client_device' filepath='drivers/i2c/i2c-core-base.c' line='872' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_client_device'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='872' column='1'/>
+        <parameter type-id='88139c0a' name='info' filepath='drivers/i2c/i2c-core-base.c' line='872' column='1'/>
         <return type-id='3e31633b'/>
       </function-decl>
       <function-decl name='i2c_new_dummy_device' mangled-name='i2c_new_dummy_device' filepath='drivers/i2c/i2c-core-base.c' line='1011' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_new_dummy_device'>
@@ -119087,23 +114469,23 @@
         <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='250' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='i2c_register_driver' mangled-name='i2c_register_driver' filepath='include/linux/i2c.h' line='852' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_register_driver'>
-        <parameter type-id='2730d015'/>
-        <parameter type-id='29ffcb70'/>
+      <function-decl name='i2c_register_driver' mangled-name='i2c_register_driver' filepath='drivers/i2c/i2c-core-base.c' line='1789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_register_driver'>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/i2c/i2c-core-base.c' line='1789' column='1'/>
+        <parameter type-id='29ffcb70' name='driver' filepath='drivers/i2c/i2c-core-base.c' line='1789' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='i2c_smbus_read_byte' mangled-name='i2c_smbus_read_byte' filepath='include/linux/i2c.h' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_byte'>
-        <parameter type-id='7ea54338'/>
+      <function-decl name='i2c_smbus_read_byte' mangled-name='i2c_smbus_read_byte' filepath='drivers/i2c/i2c-core-smbus.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_byte'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-smbus.c' line='93' column='1'/>
         <return type-id='a7832498'/>
       </function-decl>
-      <function-decl name='i2c_smbus_read_byte_data' mangled-name='i2c_smbus_read_byte_data' filepath='include/linux/i2c.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_byte_data'>
-        <parameter type-id='7ea54338'/>
-        <parameter type-id='f9b06939'/>
+      <function-decl name='i2c_smbus_read_byte_data' mangled-name='i2c_smbus_read_byte_data' filepath='drivers/i2c/i2c-core-smbus.c' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_byte_data'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-smbus.c' line='128' column='1'/>
+        <parameter type-id='f9b06939' name='command' filepath='drivers/i2c/i2c-core-smbus.c' line='128' column='1'/>
         <return type-id='a7832498'/>
       </function-decl>
-      <function-decl name='i2c_smbus_read_word_data' mangled-name='i2c_smbus_read_word_data' filepath='include/linux/i2c.h' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_word_data'>
-        <parameter type-id='7ea54338'/>
-        <parameter type-id='f9b06939'/>
+      <function-decl name='i2c_smbus_read_word_data' mangled-name='i2c_smbus_read_word_data' filepath='drivers/i2c/i2c-core-smbus.c' line='168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_read_word_data'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-smbus.c' line='168' column='1'/>
+        <parameter type-id='f9b06939' name='command' filepath='drivers/i2c/i2c-core-smbus.c' line='168' column='1'/>
         <return type-id='a7832498'/>
       </function-decl>
       <function-decl name='i2c_smbus_write_byte' mangled-name='i2c_smbus_write_byte' filepath='drivers/i2c/i2c-core-smbus.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_write_byte'>
@@ -119111,37 +114493,37 @@
         <parameter type-id='f9b06939' name='value' filepath='drivers/i2c/i2c-core-smbus.c' line='113' column='1'/>
         <return type-id='a7832498'/>
       </function-decl>
-      <function-decl name='i2c_smbus_write_byte_data' mangled-name='i2c_smbus_write_byte_data' filepath='include/linux/i2c.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_write_byte_data'>
-        <parameter type-id='7ea54338'/>
-        <parameter type-id='f9b06939'/>
-        <parameter type-id='f9b06939'/>
+      <function-decl name='i2c_smbus_write_byte_data' mangled-name='i2c_smbus_write_byte_data' filepath='drivers/i2c/i2c-core-smbus.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_write_byte_data'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-smbus.c' line='149' column='1'/>
+        <parameter type-id='f9b06939' name='command' filepath='drivers/i2c/i2c-core-smbus.c' line='149' column='1'/>
+        <parameter type-id='f9b06939' name='value' filepath='drivers/i2c/i2c-core-smbus.c' line='150' column='1'/>
         <return type-id='a7832498'/>
       </function-decl>
-      <function-decl name='i2c_smbus_xfer' mangled-name='i2c_smbus_xfer' filepath='include/linux/i2c.h' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_xfer'>
-        <parameter type-id='b9af02c3'/>
-        <parameter type-id='1dc6a898'/>
-        <parameter type-id='8efea9e5'/>
-        <parameter type-id='a84c031d'/>
-        <parameter type-id='f9b06939'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='a556dccb'/>
+      <function-decl name='i2c_smbus_xfer' mangled-name='i2c_smbus_xfer' filepath='drivers/i2c/i2c-core-smbus.c' line='532' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_smbus_xfer'>
+        <parameter type-id='b9af02c3' name='adapter' filepath='drivers/i2c/i2c-core-smbus.c' line='532' column='1'/>
+        <parameter type-id='1dc6a898' name='addr' filepath='drivers/i2c/i2c-core-smbus.c' line='532' column='1'/>
+        <parameter type-id='8efea9e5' name='flags' filepath='drivers/i2c/i2c-core-smbus.c' line='533' column='1'/>
+        <parameter type-id='a84c031d' name='read_write' filepath='drivers/i2c/i2c-core-smbus.c' line='533' column='1'/>
+        <parameter type-id='f9b06939' name='command' filepath='drivers/i2c/i2c-core-smbus.c' line='534' column='1'/>
+        <parameter type-id='95e97e5e' name='protocol' filepath='drivers/i2c/i2c-core-smbus.c' line='534' column='1'/>
+        <parameter type-id='a556dccb' name='data' filepath='drivers/i2c/i2c-core-smbus.c' line='534' column='1'/>
         <return type-id='a7832498'/>
       </function-decl>
-      <function-decl name='i2c_transfer' mangled-name='i2c_transfer' filepath='include/linux/i2c.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_transfer'>
-        <parameter type-id='b9af02c3'/>
-        <parameter type-id='cd44bc95'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='i2c_transfer' mangled-name='i2c_transfer' filepath='drivers/i2c/i2c-core-base.c' line='2085' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_transfer'>
+        <parameter type-id='b9af02c3' name='adap' filepath='drivers/i2c/i2c-core-base.c' line='2085' column='1'/>
+        <parameter type-id='cd44bc95' name='msgs' filepath='drivers/i2c/i2c-core-base.c' line='2085' column='1'/>
+        <parameter type-id='95e97e5e' name='num' filepath='drivers/i2c/i2c-core-base.c' line='2085' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='i2c_transfer_buffer_flags' mangled-name='i2c_transfer_buffer_flags' filepath='include/linux/i2c.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_transfer_buffer_flags'>
-        <parameter type-id='7ea54338'/>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='1dc6a898'/>
+      <function-decl name='i2c_transfer_buffer_flags' mangled-name='i2c_transfer_buffer_flags' filepath='drivers/i2c/i2c-core-base.c' line='2131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_transfer_buffer_flags'>
+        <parameter type-id='7ea54338' name='client' filepath='drivers/i2c/i2c-core-base.c' line='2131' column='1'/>
+        <parameter type-id='26a90f95' name='buf' filepath='drivers/i2c/i2c-core-base.c' line='2131' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='drivers/i2c/i2c-core-base.c' line='2132' column='1'/>
+        <parameter type-id='1dc6a898' name='flags' filepath='drivers/i2c/i2c-core-base.c' line='2132' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='i2c_unregister_device' mangled-name='i2c_unregister_device' filepath='include/linux/i2c.h' line='473' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_unregister_device'>
-        <parameter type-id='3e31633b'/>
+      <function-decl name='i2c_unregister_device' mangled-name='i2c_unregister_device' filepath='drivers/i2c/i2c-core-base.c' line='953' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_unregister_device'>
+        <parameter type-id='3e31633b' name='client' filepath='drivers/i2c/i2c-core-base.c' line='953' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='i2c_verify_adapter' mangled-name='i2c_verify_adapter' filepath='drivers/i2c/i2c-core-base.c' line='1278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='i2c_verify_adapter'>
@@ -119152,12 +114534,12 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/i2c/i2c-core-base.c' line='658' column='1'/>
         <return type-id='3e31633b'/>
       </function-decl>
-      <function-decl name='icc_disable' mangled-name='icc_disable' filepath='include/linux/interconnect.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_disable'>
-        <parameter type-id='b5fdec5e'/>
+      <function-decl name='icc_disable' mangled-name='icc_disable' filepath='drivers/interconnect/core.c' line='702' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_disable'>
+        <parameter type-id='b5fdec5e' name='path' filepath='drivers/interconnect/core.c' line='702' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='icc_enable' mangled-name='icc_enable' filepath='include/linux/interconnect.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_enable'>
-        <parameter type-id='b5fdec5e'/>
+      <function-decl name='icc_enable' mangled-name='icc_enable' filepath='drivers/interconnect/core.c' line='696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_enable'>
+        <parameter type-id='b5fdec5e' name='path' filepath='drivers/interconnect/core.c' line='696' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='icc_link_create' mangled-name='icc_link_create' filepath='drivers/interconnect/core.c' line='870' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_link_create'>
@@ -119186,14 +114568,14 @@
         <parameter type-id='e68dc824' name='provider' filepath='drivers/interconnect/core.c' line='1060' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='icc_put' mangled-name='icc_put' filepath='include/linux/interconnect.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_put'>
-        <parameter type-id='b5fdec5e'/>
+      <function-decl name='icc_put' mangled-name='icc_put' filepath='drivers/interconnect/core.c' line='763' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_put'>
+        <parameter type-id='b5fdec5e' name='path' filepath='drivers/interconnect/core.c' line='763' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='icc_set_bw' mangled-name='icc_set_bw' filepath='include/linux/interconnect.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_set_bw'>
-        <parameter type-id='b5fdec5e'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='icc_set_bw' mangled-name='icc_set_bw' filepath='drivers/interconnect/core.c' line='622' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_set_bw'>
+        <parameter type-id='b5fdec5e' name='path' filepath='drivers/interconnect/core.c' line='622' column='1'/>
+        <parameter type-id='19c2251e' name='avg_bw' filepath='drivers/interconnect/core.c' line='622' column='1'/>
+        <parameter type-id='19c2251e' name='peak_bw' filepath='drivers/interconnect/core.c' line='622' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='icc_set_tag' mangled-name='icc_set_tag' filepath='drivers/interconnect/core.c' line='573' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='icc_set_tag'>
@@ -119214,36 +114596,36 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/interconnect/core.c' line='1097' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ida_alloc_range' mangled-name='ida_alloc_range' filepath='include/linux/idr.h' line='255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_alloc_range'>
-        <parameter type-id='a9e764bb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='ida_alloc_range' mangled-name='ida_alloc_range' filepath='lib/idr.c' line='380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_alloc_range'>
+        <parameter type-id='a9e764bb' name='ida' filepath='lib/idr.c' line='380' column='1'/>
+        <parameter type-id='f0981eeb' name='min' filepath='lib/idr.c' line='380' column='1'/>
+        <parameter type-id='f0981eeb' name='max' filepath='lib/idr.c' line='380' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/idr.c' line='381' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ida_destroy' mangled-name='ida_destroy' filepath='include/linux/idr.h' line='257' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_destroy'>
-        <parameter type-id='a9e764bb'/>
+      <function-decl name='ida_destroy' mangled-name='ida_destroy' filepath='lib/idr.c' line='540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_destroy'>
+        <parameter type-id='a9e764bb' name='ida' filepath='lib/idr.c' line='540' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ida_free' mangled-name='ida_free' filepath='include/linux/idr.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_free'>
-        <parameter type-id='a9e764bb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='ida_free' mangled-name='ida_free' filepath='lib/idr.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ida_free'>
+        <parameter type-id='a9e764bb' name='ida' filepath='lib/idr.c' line='487' column='1'/>
+        <parameter type-id='f0981eeb' name='id' filepath='lib/idr.c' line='487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='idr_alloc' mangled-name='idr_alloc' filepath='include/linux/idr.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc'>
-        <parameter type-id='301185b4'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='idr_alloc' mangled-name='idr_alloc' filepath='lib/idr.c' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='79' column='1'/>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='lib/idr.c' line='79' column='1'/>
+        <parameter type-id='95e97e5e' name='start' filepath='lib/idr.c' line='79' column='1'/>
+        <parameter type-id='95e97e5e' name='end' filepath='lib/idr.c' line='79' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/idr.c' line='79' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='idr_alloc_cyclic' mangled-name='idr_alloc_cyclic' filepath='include/linux/idr.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_cyclic'>
-        <parameter type-id='301185b4'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='idr_alloc_cyclic' mangled-name='idr_alloc_cyclic' filepath='lib/idr.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_cyclic'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='117' column='1'/>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='lib/idr.c' line='117' column='1'/>
+        <parameter type-id='95e97e5e' name='start' filepath='lib/idr.c' line='117' column='1'/>
+        <parameter type-id='95e97e5e' name='end' filepath='lib/idr.c' line='117' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/idr.c' line='117' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='idr_alloc_u32' mangled-name='idr_alloc_u32' filepath='lib/idr.c' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_alloc_u32'>
@@ -119254,39 +114636,39 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='lib/idr.c' line='34' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='idr_destroy' mangled-name='idr_destroy' filepath='include/linux/idr.h' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_destroy'>
-        <parameter type-id='301185b4'/>
+      <function-decl name='idr_destroy' mangled-name='idr_destroy' filepath='lib/radix-tree.c' line='1557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_destroy'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/radix-tree.c' line='1557' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='idr_find' mangled-name='idr_find' filepath='include/linux/idr.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_find'>
-        <parameter type-id='c79c8089'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='idr_find' mangled-name='idr_find' filepath='lib/idr.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_find'>
+        <parameter type-id='c79c8089' name='idr' filepath='lib/idr.c' line='172' column='1'/>
+        <parameter type-id='7359adad' name='id' filepath='lib/idr.c' line='172' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='idr_for_each' mangled-name='idr_for_each' filepath='include/linux/idr.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_for_each'>
-        <parameter type-id='c79c8089'/>
-        <parameter type-id='f4f5b664'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='idr_for_each' mangled-name='idr_for_each' filepath='lib/idr.c' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_for_each'>
+        <parameter type-id='c79c8089' name='idr' filepath='lib/idr.c' line='195' column='1'/>
+        <parameter type-id='f4f5b664' name='fn' filepath='lib/idr.c' line='196' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/idr.c' line='196' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='idr_get_next' mangled-name='idr_get_next' filepath='include/linux/idr.h' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_get_next'>
-        <parameter type-id='301185b4'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='idr_get_next' mangled-name='idr_get_next' filepath='lib/idr.c' line='264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_get_next'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='264' column='1'/>
+        <parameter type-id='7292109c' name='nextid' filepath='lib/idr.c' line='264' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='idr_preload' mangled-name='idr_preload' filepath='include/linux/idr.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_preload'>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='idr_preload' mangled-name='idr_preload' filepath='lib/radix-tree.c' line='1467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_preload'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='lib/radix-tree.c' line='1467' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='idr_remove' mangled-name='idr_remove' filepath='include/linux/idr.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_remove'>
-        <parameter type-id='301185b4'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='idr_remove' mangled-name='idr_remove' filepath='lib/idr.c' line='152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_remove'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='152' column='1'/>
+        <parameter type-id='7359adad' name='id' filepath='lib/idr.c' line='152' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='idr_replace' mangled-name='idr_replace' filepath='include/linux/idr.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_replace'>
-        <parameter type-id='301185b4'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='idr_replace' mangled-name='idr_replace' filepath='lib/idr.c' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_replace'>
+        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='290' column='1'/>
+        <parameter type-id='eaa32e2f' name='ptr' filepath='lib/idr.c' line='290' column='1'/>
+        <parameter type-id='7359adad' name='id' filepath='lib/idr.c' line='290' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='ieee80211_alloc_hw_nm' mangled-name='ieee80211_alloc_hw_nm' filepath='net/mac80211/main.c' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_alloc_hw_nm'>
@@ -119471,15 +114853,15 @@
         <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='5115' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='ieee80211_queue_delayed_work' mangled-name='ieee80211_queue_delayed_work' filepath='include/net/mac80211.h' line='5564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_queue_delayed_work'>
-        <parameter type-id='1905517d'/>
-        <parameter type-id='1a7ee447'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='ieee80211_queue_delayed_work' mangled-name='ieee80211_queue_delayed_work' filepath='net/mac80211/util.c' line='935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_queue_delayed_work'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='935' column='1'/>
+        <parameter type-id='1a7ee447' name='dwork' filepath='net/mac80211/util.c' line='936' column='1'/>
+        <parameter type-id='7359adad' name='delay' filepath='net/mac80211/util.c' line='937' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_queue_work' mangled-name='ieee80211_queue_work' filepath='include/net/mac80211.h' line='5552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_queue_work'>
-        <parameter type-id='1905517d'/>
-        <parameter type-id='83c1bde6'/>
+      <function-decl name='ieee80211_queue_work' mangled-name='ieee80211_queue_work' filepath='net/mac80211/util.c' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_queue_work'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/util.c' line='924' column='1'/>
+        <parameter type-id='83c1bde6' name='work' filepath='net/mac80211/util.c' line='924' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ieee80211_radar_detected' mangled-name='ieee80211_radar_detected' filepath='net/mac80211/util.c' line='3805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_radar_detected'>
@@ -119512,11 +114894,11 @@
         <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/rx.c' line='4882' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_rx_napi' mangled-name='ieee80211_rx_napi' filepath='include/net/mac80211.h' line='4496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_rx_napi'>
-        <parameter type-id='1905517d'/>
-        <parameter type-id='f27bb1b0'/>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='c50361c5'/>
+      <function-decl name='ieee80211_rx_napi' mangled-name='ieee80211_rx_napi' filepath='net/mac80211/rx.c' line='4852' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_rx_napi'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/rx.c' line='4852' column='1'/>
+        <parameter type-id='f27bb1b0' name='pubsta' filepath='net/mac80211/rx.c' line='4852' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/rx.c' line='4853' column='1'/>
+        <parameter type-id='c50361c5' name='napi' filepath='net/mac80211/rx.c' line='4853' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ieee80211_scan_completed' mangled-name='ieee80211_scan_completed' filepath='net/mac80211/scan.c' line='491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_scan_completed'>
@@ -119584,9 +114966,9 @@
         <parameter type-id='16734b39' name='info' filepath='net/mac80211/status.c' line='1194' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_tx_status' mangled-name='ieee80211_tx_status' filepath='include/net/mac80211.h' line='4738' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_status'>
-        <parameter type-id='1905517d'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='ieee80211_tx_status' mangled-name='ieee80211_tx_status' filepath='net/mac80211/status.c' line='1047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_status'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/status.c' line='1047' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/status.c' line='1047' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ieee80211_tx_status_irqsafe' mangled-name='ieee80211_tx_status_irqsafe' filepath='net/mac80211/status.c' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_status_irqsafe'>
@@ -119646,27 +115028,27 @@
         <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/main.c' line='207' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee802154_wake_queue' mangled-name='ieee802154_wake_queue' filepath='include/net/mac802154.h' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_wake_queue'>
-        <parameter type-id='c67366c7'/>
+      <function-decl name='ieee802154_wake_queue' mangled-name='ieee802154_wake_queue' filepath='net/mac802154/util.c' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_wake_queue'>
+        <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/util.c' line='16' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee802154_xmit_complete' mangled-name='ieee802154_xmit_complete' filepath='include/net/mac802154.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_xmit_complete'>
-        <parameter type-id='c67366c7'/>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='ieee802154_xmit_complete' mangled-name='ieee802154_xmit_complete' filepath='net/mac802154/util.c' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee802154_xmit_complete'>
+        <parameter type-id='c67366c7' name='hw' filepath='net/mac802154/util.c' line='58' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac802154/util.c' line='58' column='1'/>
+        <parameter type-id='b50a4934' name='ifs_handling' filepath='net/mac802154/util.c' line='59' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='iio_device_unregister' mangled-name='iio_device_unregister' filepath='drivers/iio/industrialio-core.c' line='1797' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iio_device_unregister'>
         <parameter type-id='226853d2' name='indio_dev' filepath='drivers/iio/industrialio-core.c' line='1797' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='import_iovec' mangled-name='import_iovec' filepath='include/linux/uio.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='import_iovec'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='2c556848'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='5d3cb3f9'/>
-        <parameter type-id='4fa10f9e'/>
+      <function-decl name='import_iovec' mangled-name='import_iovec' filepath='lib/iov_iter.c' line='1815' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='import_iovec'>
+        <parameter type-id='95e97e5e' name='type' filepath='lib/iov_iter.c' line='1815' column='1'/>
+        <parameter type-id='2c556848' name='uvec' filepath='lib/iov_iter.c' line='1815' column='1'/>
+        <parameter type-id='f0981eeb' name='nr_segs' filepath='lib/iov_iter.c' line='1816' column='1'/>
+        <parameter type-id='f0981eeb' name='fast_segs' filepath='lib/iov_iter.c' line='1816' column='1'/>
+        <parameter type-id='5d3cb3f9' name='iovp' filepath='lib/iov_iter.c' line='1817' column='1'/>
+        <parameter type-id='4fa10f9e' name='i' filepath='lib/iov_iter.c' line='1817' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
       <function-decl name='in6_pton' mangled-name='in6_pton' filepath='net/core/utils.c' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='in6_pton'>
@@ -119685,9 +115067,9 @@
         <parameter type-id='094d8048' name='grp' filepath='kernel/groups.c' line='231' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='inc_zone_page_state' mangled-name='inc_zone_page_state' filepath='include/linux/vmstat.h' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inc_zone_page_state'>
-        <parameter type-id='02f11ed4'/>
-        <parameter type-id='a1f2d9a1'/>
+      <function-decl name='inc_zone_page_state' mangled-name='inc_zone_page_state' filepath='mm/vmstat.c' line='534' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='inc_zone_page_state'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/vmstat.c' line='534' column='1'/>
+        <parameter type-id='a1f2d9a1' name='item' filepath='mm/vmstat.c' line='534' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='init_dummy_netdev' mangled-name='init_dummy_netdev' filepath='net/core/dev.c' line='10194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_dummy_netdev'>
@@ -119696,9 +115078,9 @@
       </function-decl>
       <var-decl name='init_net' type-id='bd965180' mangled-name='init_net' visibility='default' filepath='net/core/net_namespace.c' line='47' column='1' elf-symbol-id='init_net'/>
       <var-decl name='init_pid_ns' type-id='0252e252' mangled-name='init_pid_ns' visibility='default' filepath='kernel/pid.c' line='75' column='1' elf-symbol-id='init_pid_ns'/>
-      <function-decl name='init_pseudo' mangled-name='init_pseudo' filepath='include/linux/pseudo_fs.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_pseudo'>
-        <parameter type-id='5760dcb0'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='init_pseudo' mangled-name='init_pseudo' filepath='fs/libfs.c' line='368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_pseudo'>
+        <parameter type-id='5760dcb0' name='fc' filepath='fs/libfs.c' line='368' column='1'/>
+        <parameter type-id='7359adad' name='magic' filepath='fs/libfs.c' line='369' column='1'/>
         <return type-id='79f85ebf'/>
       </function-decl>
       <function-decl name='init_srcu_struct' mangled-name='init_srcu_struct' filepath='kernel/rcu/srcutree.c' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_srcu_struct'>
@@ -119706,18 +115088,18 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='init_task' type-id='bc3f1924' mangled-name='init_task' visibility='default' filepath='init/init_task.c' line='64' column='1' elf-symbol-id='init_task'/>
-      <function-decl name='init_timer_key' mangled-name='init_timer_key' filepath='include/linux/timer.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_timer_key'>
-        <parameter type-id='9248e67f'/>
-        <parameter type-id='9582ad9a'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='a57283f9'/>
+      <function-decl name='init_timer_key' mangled-name='init_timer_key' filepath='kernel/time/timer.c' line='818' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_timer_key'>
+        <parameter type-id='9248e67f' name='timer' filepath='kernel/time/timer.c' line='818' column='1'/>
+        <parameter type-id='9582ad9a' name='func' filepath='kernel/time/timer.c' line='819' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='kernel/time/timer.c' line='819' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/time/timer.c' line='820' column='1'/>
+        <parameter type-id='a57283f9' name='key' filepath='kernel/time/timer.c' line='820' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='init_uts_ns' type-id='44f52e9d' mangled-name='init_uts_ns' visibility='default' filepath='init/version.c' line='27' column='1' elf-symbol-id='init_uts_ns'/>
-      <function-decl name='init_wait_entry' mangled-name='init_wait_entry' filepath='include/linux/wait.h' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_wait_entry'>
-        <parameter type-id='db9d03e3'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='init_wait_entry' mangled-name='init_wait_entry' filepath='kernel/sched/wait.c' line='282' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='init_wait_entry'>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='282' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='kernel/sched/wait.c' line='282' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='input_alloc_absinfo' mangled-name='input_alloc_absinfo' filepath='drivers/input/input.c' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_alloc_absinfo'>
@@ -119727,8 +115109,8 @@
       <function-decl name='input_allocate_device' mangled-name='input_allocate_device' filepath='drivers/input/input.c' line='1810' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_allocate_device'>
         <return type-id='74b427eb'/>
       </function-decl>
-      <function-decl name='input_close_device' mangled-name='input_close_device' filepath='include/linux/input.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_close_device'>
-        <parameter type-id='bef1b918'/>
+      <function-decl name='input_close_device' mangled-name='input_close_device' filepath='drivers/input/input.c' line='670' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_close_device'>
+        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='670' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='input_event' mangled-name='input_event' filepath='drivers/input/input.c' line='433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_event'>
@@ -119755,8 +115137,8 @@
         <parameter type-id='95e97e5e' name='dmax' filepath='drivers/input/input-mt.c' line='442' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='input_mt_destroy_slots' mangled-name='input_mt_destroy_slots' filepath='include/linux/input/mt.h' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_destroy_slots'>
-        <parameter type-id='74b427eb'/>
+      <function-decl name='input_mt_destroy_slots' mangled-name='input_mt_destroy_slots' filepath='drivers/input/input-mt.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_destroy_slots'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='110' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='input_mt_drop_unused' mangled-name='input_mt_drop_unused' filepath='drivers/input/input-mt.c' line='276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_mt_drop_unused'>
@@ -119789,20 +115171,20 @@
         <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input-mt.c' line='295' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='input_open_device' mangled-name='input_open_device' filepath='include/linux/input.h' line='414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_open_device'>
-        <parameter type-id='bef1b918'/>
+      <function-decl name='input_open_device' mangled-name='input_open_device' filepath='drivers/input/input.c' line='599' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_open_device'>
+        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='599' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='input_register_device' mangled-name='input_register_device' filepath='drivers/input/input.c' line='2153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_device'>
         <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2153' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='input_register_handle' mangled-name='input_register_handle' filepath='include/linux/input.h' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handle'>
-        <parameter type-id='bef1b918'/>
+      <function-decl name='input_register_handle' mangled-name='input_register_handle' filepath='drivers/input/input.c' line='2378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handle'>
+        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='2378' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='input_register_handler' mangled-name='input_register_handler' filepath='include/linux/input.h' line='398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handler'>
-        <parameter type-id='4938abae'/>
+      <function-decl name='input_register_handler' mangled-name='input_register_handler' filepath='drivers/input/input.c' line='2287' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handler'>
+        <parameter type-id='4938abae' name='handler' filepath='drivers/input/input.c' line='2287' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='input_set_abs_params' mangled-name='input_set_abs_params' filepath='drivers/input/input.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_set_abs_params'>
@@ -119829,16 +115211,16 @@
         <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2260' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='input_unregister_handle' mangled-name='input_unregister_handle' filepath='include/linux/input.h' line='409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handle'>
-        <parameter type-id='bef1b918'/>
+      <function-decl name='input_unregister_handle' mangled-name='input_unregister_handle' filepath='drivers/input/input.c' line='2428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handle'>
+        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='2428' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='input_unregister_handler' mangled-name='input_unregister_handler' filepath='include/linux/input.h' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handler'>
-        <parameter type-id='4938abae'/>
+      <function-decl name='input_unregister_handler' mangled-name='input_unregister_handler' filepath='drivers/input/input.c' line='2317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handler'>
+        <parameter type-id='4938abae' name='handler' filepath='drivers/input/input.c' line='2317' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='int_sqrt' mangled-name='int_sqrt' filepath='include/linux/kernel.h' line='512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='int_sqrt'>
-        <parameter type-id='7359adad'/>
+      <function-decl name='int_sqrt' mangled-name='int_sqrt' filepath='lib/math/int_sqrt.c' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='int_sqrt'>
+        <parameter type-id='7359adad' name='x' filepath='lib/math/int_sqrt.c' line='19' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='int_to_scsilun' mangled-name='int_to_scsilun' filepath='drivers/scsi/scsi_common.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='int_to_scsilun'>
@@ -119923,9 +115305,9 @@
         <parameter type-id='2f00283d' name='iommu' filepath='drivers/iommu/iommu-sysfs.c' line='92' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='iommu_device_unlink' mangled-name='iommu_device_unlink' filepath='include/linux/iommu.h' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_unlink'>
-        <parameter type-id='2f00283d'/>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='iommu_device_unlink' mangled-name='iommu_device_unlink' filepath='drivers/iommu/iommu-sysfs.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_unlink'>
+        <parameter type-id='2f00283d' name='iommu' filepath='drivers/iommu/iommu-sysfs.c' line='127' column='1'/>
+        <parameter type-id='fa0b179b' name='link' filepath='drivers/iommu/iommu-sysfs.c' line='127' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='iommu_device_unregister' mangled-name='iommu_device_unregister' filepath='drivers/iommu/iommu.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iommu_device_unregister'>
@@ -120055,24 +115437,24 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1112' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='iounmap' mangled-name='iounmap' filepath='arch/arm64/include/asm/io.h' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iounmap'>
-        <parameter type-id='fe09dd29'/>
+      <function-decl name='iounmap' mangled-name='iounmap' filepath='arch/arm64/mm/ioremap.c' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iounmap'>
+        <parameter type-id='fe09dd29' name='io_addr' filepath='arch/arm64/mm/ioremap.c' line='233' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='iov_iter_bvec' mangled-name='iov_iter_bvec' filepath='include/linux/uio.h' line='219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_bvec'>
-        <parameter type-id='4fa10f9e'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='15c9a01b'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='iov_iter_bvec' mangled-name='iov_iter_bvec' filepath='lib/iov_iter.c' line='1190' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_bvec'>
+        <parameter type-id='4fa10f9e' name='i' filepath='lib/iov_iter.c' line='1190' column='1'/>
+        <parameter type-id='f0981eeb' name='direction' filepath='lib/iov_iter.c' line='1190' column='1'/>
+        <parameter type-id='15c9a01b' name='bvec' filepath='lib/iov_iter.c' line='1191' column='1'/>
+        <parameter type-id='7359adad' name='nr_segs' filepath='lib/iov_iter.c' line='1191' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/iov_iter.c' line='1192' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='iov_iter_kvec' mangled-name='iov_iter_kvec' filepath='include/linux/uio.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_kvec'>
-        <parameter type-id='4fa10f9e'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='5199c30d'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='iov_iter_kvec' mangled-name='iov_iter_kvec' filepath='lib/iov_iter.c' line='1177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iov_iter_kvec'>
+        <parameter type-id='4fa10f9e' name='i' filepath='lib/iov_iter.c' line='1177' column='1'/>
+        <parameter type-id='f0981eeb' name='direction' filepath='lib/iov_iter.c' line='1177' column='1'/>
+        <parameter type-id='5199c30d' name='kvec' filepath='lib/iov_iter.c' line='1178' column='1'/>
+        <parameter type-id='7359adad' name='nr_segs' filepath='lib/iov_iter.c' line='1178' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/iov_iter.c' line='1179' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ip_compute_csum' mangled-name='ip_compute_csum' filepath='lib/checksum.c' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip_compute_csum'>
@@ -120080,12 +115462,12 @@
         <parameter type-id='95e97e5e' name='len' filepath='lib/checksum.c' line='142' column='1'/>
         <return type-id='7dac1e36'/>
       </function-decl>
-      <function-decl name='ip_send_check' mangled-name='ip_send_check' filepath='include/net/ip.h' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip_send_check'>
-        <parameter type-id='53be694c'/>
+      <function-decl name='ip_send_check' mangled-name='ip_send_check' filepath='net/ipv4/ip_output.c' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ip_send_check'>
+        <parameter type-id='53be694c' name='iph' filepath='net/ipv4/ip_output.c' line='92' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='iput' mangled-name='iput' filepath='include/linux/fs.h' line='2385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iput'>
-        <parameter type-id='7e666abe'/>
+      <function-decl name='iput' mangled-name='iput' filepath='fs/inode.c' line='1668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='iput'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/inode.c' line='1668' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='irq_chip_ack_parent' mangled-name='irq_chip_ack_parent' filepath='kernel/irq/chip.c' line='1418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_ack_parent'>
@@ -120100,8 +115482,8 @@
         <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1389' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='irq_chip_eoi_parent' mangled-name='irq_chip_eoi_parent' filepath='include/linux/irq.h' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_eoi_parent'>
-        <parameter type-id='1c475548'/>
+      <function-decl name='irq_chip_eoi_parent' mangled-name='irq_chip_eoi_parent' filepath='kernel/irq/chip.c' line='1462' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_eoi_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1462' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='irq_chip_get_parent_state' mangled-name='irq_chip_get_parent_state' filepath='kernel/irq/chip.c' line='1371' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_get_parent_state'>
@@ -120110,12 +115492,12 @@
         <parameter type-id='d8e6b335' name='state' filepath='kernel/irq/chip.c' line='1373' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_chip_mask_parent' mangled-name='irq_chip_mask_parent' filepath='include/linux/irq.h' line='683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_mask_parent'>
-        <parameter type-id='1c475548'/>
+      <function-decl name='irq_chip_mask_parent' mangled-name='irq_chip_mask_parent' filepath='kernel/irq/chip.c' line='1429' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_mask_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1429' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='irq_chip_retrigger_hierarchy' mangled-name='irq_chip_retrigger_hierarchy' filepath='include/linux/irq.h' line='682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_retrigger_hierarchy'>
-        <parameter type-id='1c475548'/>
+      <function-decl name='irq_chip_retrigger_hierarchy' mangled-name='irq_chip_retrigger_hierarchy' filepath='kernel/irq/chip.c' line='1513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_retrigger_hierarchy'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1513' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='irq_chip_set_affinity_parent' mangled-name='irq_chip_set_affinity_parent' filepath='kernel/irq/chip.c' line='1477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_affinity_parent'>
@@ -120124,10 +115506,10 @@
         <parameter type-id='b50a4934' name='force' filepath='kernel/irq/chip.c' line='1478' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_chip_set_parent_state' mangled-name='irq_chip_set_parent_state' filepath='include/linux/irq.h' line='673' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_parent_state'>
-        <parameter type-id='1c475548'/>
-        <parameter type-id='0187da1b'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='irq_chip_set_parent_state' mangled-name='irq_chip_set_parent_state' filepath='kernel/irq/chip.c' line='1349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_parent_state'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1349' column='1'/>
+        <parameter type-id='0187da1b' name='which' filepath='kernel/irq/chip.c' line='1350' column='1'/>
+        <parameter type-id='b50a4934' name='val' filepath='kernel/irq/chip.c' line='1351' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='irq_chip_set_type_parent' mangled-name='irq_chip_set_type_parent' filepath='kernel/irq/chip.c' line='1495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_set_type_parent'>
@@ -120145,8 +115527,8 @@
         <parameter type-id='f0981eeb' name='on' filepath='kernel/irq/chip.c' line='1544' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_chip_unmask_parent' mangled-name='irq_chip_unmask_parent' filepath='include/linux/irq.h' line='685' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_unmask_parent'>
-        <parameter type-id='1c475548'/>
+      <function-decl name='irq_chip_unmask_parent' mangled-name='irq_chip_unmask_parent' filepath='kernel/irq/chip.c' line='1451' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_chip_unmask_parent'>
+        <parameter type-id='1c475548' name='data' filepath='kernel/irq/chip.c' line='1451' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='irq_create_mapping_affinity' mangled-name='irq_create_mapping_affinity' filepath='kernel/irq/irqdomain.c' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_create_mapping_affinity'>
@@ -120170,13 +115552,13 @@
         <parameter type-id='eaa32e2f' name='arg' filepath='kernel/irq/irqdomain.c' line='1686' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_domain_create_hierarchy' mangled-name='irq_domain_create_hierarchy' filepath='include/linux/irqdomain.h' line='470' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_create_hierarchy'>
-        <parameter type-id='7544e824'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='4a935625'/>
-        <parameter type-id='2c202856'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='irq_domain_create_hierarchy' mangled-name='irq_domain_create_hierarchy' filepath='kernel/irq/irqdomain.c' line='1069' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_create_hierarchy'>
+        <parameter type-id='7544e824' name='parent' filepath='kernel/irq/irqdomain.c' line='1069' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='kernel/irq/irqdomain.c' line='1070' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='kernel/irq/irqdomain.c' line='1071' column='1'/>
+        <parameter type-id='4a935625' name='fwnode' filepath='kernel/irq/irqdomain.c' line='1072' column='1'/>
+        <parameter type-id='2c202856' name='ops' filepath='kernel/irq/irqdomain.c' line='1073' column='1'/>
+        <parameter type-id='eaa32e2f' name='host_data' filepath='kernel/irq/irqdomain.c' line='1074' column='1'/>
         <return type-id='7544e824'/>
       </function-decl>
       <function-decl name='irq_domain_free_irqs_common' mangled-name='irq_domain_free_irqs_common' filepath='kernel/irq/irqdomain.c' line='1341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_free_irqs_common'>
@@ -120185,27 +115567,27 @@
         <parameter type-id='f0981eeb' name='nr_irqs' filepath='kernel/irq/irqdomain.c' line='1342' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='irq_domain_remove' mangled-name='irq_domain_remove' filepath='include/linux/irqdomain.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_remove'>
-        <parameter type-id='7544e824'/>
+      <function-decl name='irq_domain_remove' mangled-name='irq_domain_remove' filepath='kernel/irq/irqdomain.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_remove'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='229' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='irq_domain_set_hwirq_and_chip' mangled-name='irq_domain_set_hwirq_and_chip' filepath='include/linux/irqdomain.h' line='505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_hwirq_and_chip'>
-        <parameter type-id='7544e824'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='88370ce9'/>
-        <parameter type-id='8846a616'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='irq_domain_set_hwirq_and_chip' mangled-name='irq_domain_set_hwirq_and_chip' filepath='kernel/irq/irqdomain.c' line='1296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_hwirq_and_chip'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1296' column='1'/>
+        <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='1296' column='1'/>
+        <parameter type-id='88370ce9' name='hwirq' filepath='kernel/irq/irqdomain.c' line='1297' column='1'/>
+        <parameter type-id='8846a616' name='chip' filepath='kernel/irq/irqdomain.c' line='1297' column='1'/>
+        <parameter type-id='eaa32e2f' name='chip_data' filepath='kernel/irq/irqdomain.c' line='1298' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_domain_set_info' mangled-name='irq_domain_set_info' filepath='include/linux/irqdomain.h' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_info'>
-        <parameter type-id='7544e824'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='88370ce9'/>
-        <parameter type-id='8846a616'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='cdb741d3'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='irq_domain_set_info' mangled-name='irq_domain_set_info' filepath='kernel/irq/irqdomain.c' line='1324' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_set_info'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1324' column='1'/>
+        <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='1324' column='1'/>
+        <parameter type-id='88370ce9' name='hwirq' filepath='kernel/irq/irqdomain.c' line='1325' column='1'/>
+        <parameter type-id='8846a616' name='chip' filepath='kernel/irq/irqdomain.c' line='1325' column='1'/>
+        <parameter type-id='eaa32e2f' name='chip_data' filepath='kernel/irq/irqdomain.c' line='1326' column='1'/>
+        <parameter type-id='cdb741d3' name='handler' filepath='kernel/irq/irqdomain.c' line='1326' column='1'/>
+        <parameter type-id='eaa32e2f' name='handler_data' filepath='kernel/irq/irqdomain.c' line='1327' column='1'/>
+        <parameter type-id='80f4b756' name='handler_name' filepath='kernel/irq/irqdomain.c' line='1327' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='irq_domain_simple_ops' type-id='a4974438' mangled-name='irq_domain_simple_ops' visibility='default' filepath='kernel/irq/irqdomain.c' line='975' column='1' elf-symbol-id='irq_domain_simple_ops'/>
@@ -120232,9 +115614,9 @@
         <parameter type-id='807869d3' name='out_type' filepath='kernel/irq/irqdomain.c' line='939' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_find_mapping' mangled-name='irq_find_mapping' filepath='include/linux/irqdomain.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_find_mapping'>
-        <parameter type-id='7544e824'/>
-        <parameter type-id='88370ce9'/>
+      <function-decl name='irq_find_mapping' mangled-name='irq_find_mapping' filepath='kernel/irq/irqdomain.c' line='884' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_find_mapping'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='884' column='1'/>
+        <parameter type-id='88370ce9' name='hwirq' filepath='kernel/irq/irqdomain.c' line='885' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
       <function-decl name='irq_find_matching_fwspec' mangled-name='irq_find_matching_fwspec' filepath='kernel/irq/irqdomain.c' line='372' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_find_matching_fwspec'>
@@ -120246,15 +115628,15 @@
         <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='159' column='1'/>
         <return type-id='1c475548'/>
       </function-decl>
-      <function-decl name='irq_modify_status' mangled-name='irq_modify_status' filepath='include/linux/irq.h' line='761' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_modify_status'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='irq_modify_status' mangled-name='irq_modify_status' filepath='kernel/irq/chip.c' line='1169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_modify_status'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='1169' column='1'/>
+        <parameter type-id='7359adad' name='clr' filepath='kernel/irq/chip.c' line='1169' column='1'/>
+        <parameter type-id='7359adad' name='set' filepath='kernel/irq/chip.c' line='1169' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='irq_of_parse_and_map' mangled-name='irq_of_parse_and_map' filepath='include/linux/of_irq.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_of_parse_and_map'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='irq_of_parse_and_map' mangled-name='irq_of_parse_and_map' filepath='drivers/of/irq.c' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_of_parse_and_map'>
+        <parameter type-id='9a537bbe' name='dev' filepath='drivers/of/irq.c' line='36' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/irq.c' line='36' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
       <function-decl name='irq_set_affinity_hint' mangled-name='irq_set_affinity_hint' filepath='kernel/irq/manage.c' line='390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_affinity_hint'>
@@ -120262,17 +115644,17 @@
         <parameter type-id='5f8a1ac4' name='m' filepath='kernel/irq/manage.c' line='390' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='irq_set_chained_handler_and_data' mangled-name='irq_set_chained_handler_and_data' filepath='include/linux/irq.h' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chained_handler_and_data'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='cdb741d3'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='irq_set_chained_handler_and_data' mangled-name='irq_set_chained_handler_and_data' filepath='kernel/irq/chip.c' line='1103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chained_handler_and_data'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='1103' column='1'/>
+        <parameter type-id='cdb741d3' name='handle' filepath='kernel/irq/chip.c' line='1103' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/irq/chip.c' line='1104' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='irq_set_chip_and_handler_name' mangled-name='irq_set_chip_and_handler_name' filepath='include/linux/irq.h' line='713' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chip_and_handler_name'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8846a616'/>
-        <parameter type-id='cdb741d3'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='irq_set_chip_and_handler_name' mangled-name='irq_set_chip_and_handler_name' filepath='kernel/irq/chip.c' line='1120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chip_and_handler_name'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/chip.c' line='1120' column='1'/>
+        <parameter type-id='8846a616' name='chip' filepath='kernel/irq/chip.c' line='1120' column='1'/>
+        <parameter type-id='cdb741d3' name='handle' filepath='kernel/irq/chip.c' line='1121' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='kernel/irq/chip.c' line='1121' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='irq_set_chip_data' mangled-name='irq_set_chip_data' filepath='kernel/irq/chip.c' line='146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_set_chip_data'>
@@ -120291,20 +115673,20 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='irq_stat' type-id='715fcff2' mangled-name='irq_stat' visibility='default' filepath='kernel/softirq.c' line='54' column='1' elf-symbol-id='irq_stat'/>
-      <function-decl name='irq_to_desc' mangled-name='irq_to_desc' filepath='include/linux/irqnr.h' line='9' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_to_desc'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='irq_to_desc' mangled-name='irq_to_desc' filepath='kernel/irq/irqdesc.c' line='351' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_to_desc'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/irqdesc.c' line='351' column='1'/>
         <return type-id='76c7d88b'/>
       </function-decl>
-      <function-decl name='irq_work_queue' mangled-name='irq_work_queue' filepath='include/linux/irq_work.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_work_queue'>
-        <parameter type-id='44bef697'/>
+      <function-decl name='irq_work_queue' mangled-name='irq_work_queue' filepath='kernel/irq_work.c' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_work_queue'>
+        <parameter type-id='44bef697' name='work' filepath='kernel/irq_work.c' line='67' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='irq_work_sync' mangled-name='irq_work_sync' filepath='include/linux/irq_work.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_work_sync'>
-        <parameter type-id='44bef697'/>
+      <function-decl name='irq_work_sync' mangled-name='irq_work_sync' filepath='kernel/irq_work.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_work_sync'>
+        <parameter type-id='44bef697' name='work' filepath='kernel/irq_work.c' line='197' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='is_vmalloc_addr' mangled-name='is_vmalloc_addr' filepath='include/linux/mm.h' line='806' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='is_vmalloc_addr'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='is_vmalloc_addr' mangled-name='is_vmalloc_addr' filepath='mm/vmalloc.c' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='is_vmalloc_addr'>
+        <parameter type-id='eaa32e2f' name='x' filepath='mm/vmalloc.c' line='47' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='jiffies64_to_msecs' mangled-name='jiffies64_to_msecs' filepath='kernel/time/time.c' line='701' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='jiffies64_to_msecs'>
@@ -120319,15 +115701,14 @@
         <parameter type-id='9cbd1c16' name='j' filepath='kernel/time/time.c' line='391' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <var-decl name='kasan_flag_enabled' type-id='237c0d27' mangled-name='kasan_flag_enabled' visibility='default' filepath='mm/kasan/hw_tags.c' line='56' column='1' elf-symbol-id='kasan_flag_enabled'/>
-      <function-decl name='kasprintf' mangled-name='kasprintf' filepath='include/linux/kernel.h' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kasprintf'>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='kasprintf' mangled-name='kasprintf' filepath='lib/kasprintf.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kasprintf'>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/kasprintf.c' line='53' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/kasprintf.c' line='53' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='kern_mount' mangled-name='kern_mount' filepath='include/linux/fs.h' line='2362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kern_mount'>
-        <parameter type-id='21e53d44'/>
+      <function-decl name='kern_mount' mangled-name='kern_mount' filepath='fs/namespace.c' line='3881' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kern_mount'>
+        <parameter type-id='21e53d44' name='type' filepath='fs/namespace.c' line='3881' column='1'/>
         <return type-id='549da823'/>
       </function-decl>
       <function-decl name='kern_unmount' mangled-name='kern_unmount' filepath='fs/namespace.c' line='3896' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kern_unmount'>
@@ -120386,30 +115767,30 @@
         <parameter type-id='45c08bac' name='how' filepath='net/socket.c' line='3554' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kfree' mangled-name='kfree' filepath='include/linux/slab.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='kfree' mangled-name='kfree' filepath='mm/slub.c' line='4168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree'>
+        <parameter type-id='eaa32e2f' name='x' filepath='mm/slub.c' line='4168' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kfree_const' mangled-name='kfree_const' filepath='include/linux/string.h' line='174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_const'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='kfree_const' mangled-name='kfree_const' filepath='mm/util.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_const'>
+        <parameter type-id='eaa32e2f' name='x' filepath='mm/util.c' line='40' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kfree_sensitive' mangled-name='kfree_sensitive' filepath='mm/slab_common.c' line='1148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_sensitive'>
         <parameter type-id='eaa32e2f' name='p' filepath='mm/slab_common.c' line='1148' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kfree_skb' mangled-name='kfree_skb' filepath='include/linux/skbuff.h' line='1062' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_skb'>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='kfree_skb' mangled-name='kfree_skb' filepath='net/core/skbuff.c' line='706' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='706' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kill_anon_super' mangled-name='kill_anon_super' filepath='fs/super.c' line='1105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_anon_super'>
         <parameter type-id='42c8f564' name='sb' filepath='fs/super.c' line='1105' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kill_fasync' mangled-name='kill_fasync' filepath='include/linux/fs.h' line='1362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_fasync'>
-        <parameter type-id='dc750055'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='kill_fasync' mangled-name='kill_fasync' filepath='fs/fcntl.c' line='1019' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_fasync'>
+        <parameter type-id='dc750055' name='fp' filepath='fs/fcntl.c' line='1019' column='1'/>
+        <parameter type-id='95e97e5e' name='sig' filepath='fs/fcntl.c' line='1019' column='1'/>
+        <parameter type-id='95e97e5e' name='band' filepath='fs/fcntl.c' line='1019' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kill_litter_super' mangled-name='kill_litter_super' filepath='fs/super.c' line='1113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kill_litter_super'>
@@ -120429,21 +115810,21 @@
         <parameter type-id='f0981eeb' name='order' filepath='mm/slab_common.c' line='834' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='kmalloc_order_trace' mangled-name='kmalloc_order_trace' filepath='include/linux/slab.h' line='469' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmalloc_order_trace'>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='kmalloc_order_trace' mangled-name='kmalloc_order_trace' filepath='mm/slab_common.c' line='857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmalloc_order_trace'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/slab_common.c' line='857' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='mm/slab_common.c' line='857' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/slab_common.c' line='857' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='kmem_cache_alloc' mangled-name='kmem_cache_alloc' filepath='include/linux/slab.h' line='390' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc'>
-        <parameter type-id='f3b4aca8'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='kmem_cache_alloc' mangled-name='kmem_cache_alloc' filepath='mm/slub.c' line='2956' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='2956' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfpflags' filepath='mm/slub.c' line='2956' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='kmem_cache_alloc_trace' mangled-name='kmem_cache_alloc_trace' filepath='include/linux/slab.h' line='428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc_trace'>
-        <parameter type-id='f3b4aca8'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='kmem_cache_alloc_trace' mangled-name='kmem_cache_alloc_trace' filepath='mm/slub.c' line='2968' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc_trace'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='2968' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfpflags' filepath='mm/slub.c' line='2968' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='2968' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='kmem_cache_create' mangled-name='kmem_cache_create' filepath='mm/slab_common.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create'>
@@ -120454,73 +115835,73 @@
         <parameter type-id='b7f9d8e6' name='ctor' filepath='mm/slab_common.c' line='409' column='1'/>
         <return type-id='f3b4aca8'/>
       </function-decl>
-      <function-decl name='kmem_cache_create_usercopy' mangled-name='kmem_cache_create_usercopy' filepath='include/linux/slab.h' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create_usercopy'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f7fe96cb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b7f9d8e6'/>
+      <function-decl name='kmem_cache_create_usercopy' mangled-name='kmem_cache_create_usercopy' filepath='mm/slab_common.c' line='303' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create_usercopy'>
+        <parameter type-id='80f4b756' name='name' filepath='mm/slab_common.c' line='303' column='1'/>
+        <parameter type-id='f0981eeb' name='size' filepath='mm/slab_common.c' line='304' column='1'/>
+        <parameter type-id='f0981eeb' name='align' filepath='mm/slab_common.c' line='304' column='1'/>
+        <parameter type-id='f7fe96cb' name='flags' filepath='mm/slab_common.c' line='305' column='1'/>
+        <parameter type-id='f0981eeb' name='useroffset' filepath='mm/slab_common.c' line='306' column='1'/>
+        <parameter type-id='f0981eeb' name='usersize' filepath='mm/slab_common.c' line='306' column='1'/>
+        <parameter type-id='b7f9d8e6' name='ctor' filepath='mm/slab_common.c' line='307' column='1'/>
         <return type-id='f3b4aca8'/>
       </function-decl>
-      <function-decl name='kmem_cache_destroy' mangled-name='kmem_cache_destroy' filepath='include/linux/slab.h' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_destroy'>
-        <parameter type-id='f3b4aca8'/>
+      <function-decl name='kmem_cache_destroy' mangled-name='kmem_cache_destroy' filepath='mm/slab_common.c' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_destroy'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slab_common.c' line='487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kmem_cache_free' mangled-name='kmem_cache_free' filepath='include/linux/slab.h' line='391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_free'>
-        <parameter type-id='f3b4aca8'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='kmem_cache_free' mangled-name='kmem_cache_free' filepath='mm/slub.c' line='3212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_free'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='3212' column='1'/>
+        <parameter type-id='eaa32e2f' name='x' filepath='mm/slub.c' line='3212' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kmemdup' mangled-name='kmemdup' filepath='include/linux/string.h' line='179' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='kmemdup' mangled-name='kmemdup' filepath='mm/util.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup'>
+        <parameter type-id='eaa32e2f' name='src' filepath='mm/util.c' line='127' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='127' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='mm/util.c' line='127' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='kmemdup_nul' mangled-name='kmemdup_nul' filepath='include/linux/string.h' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup_nul'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='kmemdup_nul' mangled-name='kmemdup_nul' filepath='mm/util.c' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup_nul'>
+        <parameter type-id='80f4b756' name='s' filepath='mm/util.c' line='147' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='147' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='mm/util.c' line='147' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <var-decl name='kobj_sysfs_ops' type-id='0f840455' mangled-name='kobj_sysfs_ops' visibility='default' filepath='lib/kobject.c' line='860' column='1' elf-symbol-id='kobj_sysfs_ops'/>
-      <function-decl name='kobject_add' mangled-name='kobject_add' filepath='include/linux/kobject.h' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_add'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='kobject_add' mangled-name='kobject_add' filepath='lib/kobject.c' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_add'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject.c' line='426' column='1'/>
+        <parameter type-id='d30bdc51' name='parent' filepath='lib/kobject.c' line='426' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/kobject.c' line='427' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kobject_create_and_add' mangled-name='kobject_create_and_add' filepath='include/linux/kobject.h' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_create_and_add'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='d30bdc51'/>
+      <function-decl name='kobject_create_and_add' mangled-name='kobject_create_and_add' filepath='lib/kobject.c' line='805' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_create_and_add'>
+        <parameter type-id='80f4b756' name='name' filepath='lib/kobject.c' line='805' column='1'/>
+        <parameter type-id='d30bdc51' name='parent' filepath='lib/kobject.c' line='805' column='1'/>
         <return type-id='d30bdc51'/>
       </function-decl>
-      <function-decl name='kobject_del' mangled-name='kobject_del' filepath='include/linux/kobject.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_del'>
-        <parameter type-id='d30bdc51'/>
+      <function-decl name='kobject_del' mangled-name='kobject_del' filepath='lib/kobject.c' line='635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_del'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject.c' line='635' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kobject_get' mangled-name='kobject_get' filepath='include/linux/kobject.h' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_get'>
-        <parameter type-id='d30bdc51'/>
+      <function-decl name='kobject_get' mangled-name='kobject_get' filepath='lib/kobject.c' line='652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_get'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject.c' line='652' column='1'/>
         <return type-id='d30bdc51'/>
       </function-decl>
-      <function-decl name='kobject_init' mangled-name='kobject_init' filepath='include/linux/kobject.h' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_init'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='c48b394e'/>
+      <function-decl name='kobject_init' mangled-name='kobject_init' filepath='lib/kobject.c' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_init'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject.c' line='349' column='1'/>
+        <parameter type-id='c48b394e' name='ktype' filepath='lib/kobject.c' line='349' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kobject_init_and_add' mangled-name='kobject_init_and_add' filepath='include/linux/kobject.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_init_and_add'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='c48b394e'/>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='kobject_init_and_add' mangled-name='kobject_init_and_add' filepath='lib/kobject.c' line='464' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_init_and_add'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject.c' line='464' column='1'/>
+        <parameter type-id='c48b394e' name='ktype' filepath='lib/kobject.c' line='464' column='1'/>
+        <parameter type-id='d30bdc51' name='parent' filepath='lib/kobject.c' line='465' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/kobject.c' line='465' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kobject_put' mangled-name='kobject_put' filepath='include/linux/kobject.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_put'>
-        <parameter type-id='d30bdc51'/>
+      <function-decl name='kobject_put' mangled-name='kobject_put' filepath='lib/kobject.c' line='746' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_put'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject.c' line='746' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kobject_uevent' mangled-name='kobject_uevent' filepath='lib/kobject_uevent.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_uevent'>
@@ -120528,16 +115909,16 @@
         <parameter type-id='7d635811' name='action' filepath='lib/kobject_uevent.c' line='640' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kobject_uevent_env' mangled-name='kobject_uevent_env' filepath='include/linux/kobject.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_uevent_env'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='7d635811'/>
-        <parameter type-id='9b23c9ad'/>
+      <function-decl name='kobject_uevent_env' mangled-name='kobject_uevent_env' filepath='lib/kobject_uevent.c' line='457' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kobject_uevent_env'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='lib/kobject_uevent.c' line='457' column='1'/>
+        <parameter type-id='7d635811' name='action' filepath='lib/kobject_uevent.c' line='457' column='1'/>
+        <parameter type-id='9b23c9ad' name='envp_ext' filepath='lib/kobject_uevent.c' line='458' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='krealloc' mangled-name='krealloc' filepath='include/linux/slab.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='krealloc'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='krealloc' mangled-name='krealloc' filepath='mm/slab_common.c' line='1120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='krealloc'>
+        <parameter type-id='eaa32e2f' name='p' filepath='mm/slab_common.c' line='1120' column='1'/>
+        <parameter type-id='b59d7dce' name='new_size' filepath='mm/slab_common.c' line='1120' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='mm/slab_common.c' line='1120' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='ksize' mangled-name='ksize' filepath='mm/slab_common.c' line='1174' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ksize'>
@@ -120545,14 +115926,14 @@
         <return type-id='b59d7dce'/>
       </function-decl>
       <var-decl name='kstat' type-id='153750ef' mangled-name='kstat' visibility='default' filepath='kernel/sched/core.c' line='4158' column='1' elf-symbol-id='kstat'/>
-      <function-decl name='kstrdup' mangled-name='kstrdup' filepath='include/linux/string.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='kstrdup' mangled-name='kstrdup' filepath='mm/util.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup'>
+        <parameter type-id='80f4b756' name='s' filepath='mm/util.c' line='54' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='mm/util.c' line='54' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='kstrdup_const' mangled-name='kstrdup_const' filepath='include/linux/string.h' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup_const'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='kstrdup_const' mangled-name='kstrdup_const' filepath='mm/util.c' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup_const'>
+        <parameter type-id='80f4b756' name='s' filepath='mm/util.c' line='81' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='mm/util.c' line='81' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
       <function-decl name='kstrdup_quotable_cmdline' mangled-name='kstrdup_quotable_cmdline' filepath='lib/string_helpers.c' line='597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup_quotable_cmdline'>
@@ -120560,34 +115941,34 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='lib/string_helpers.c' line='597' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='kstrndup' mangled-name='kstrndup' filepath='include/linux/string.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrndup'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='kstrndup' mangled-name='kstrndup' filepath='mm/util.c' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrndup'>
+        <parameter type-id='80f4b756' name='s' filepath='mm/util.c' line='100' column='1'/>
+        <parameter type-id='b59d7dce' name='max' filepath='mm/util.c' line='100' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='mm/util.c' line='100' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='kstrtobool' mangled-name='kstrtobool' filepath='include/linux/string.h' line='186' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtobool'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='d8e6b335'/>
+      <function-decl name='kstrtobool' mangled-name='kstrtobool' filepath='lib/kstrtox.c' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtobool'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='335' column='1'/>
+        <parameter type-id='d8e6b335' name='res' filepath='lib/kstrtox.c' line='335' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtobool_from_user' mangled-name='kstrtobool_from_user' filepath='include/linux/kernel.h' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtobool_from_user'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='d8e6b335'/>
+      <function-decl name='kstrtobool_from_user' mangled-name='kstrtobool_from_user' filepath='lib/kstrtox.c' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtobool_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='377' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='377' column='1'/>
+        <parameter type-id='d8e6b335' name='res' filepath='lib/kstrtox.c' line='377' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtoint' mangled-name='kstrtoint' filepath='include/linux/kernel.h' line='393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoint'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='kstrtoint' mangled-name='kstrtoint' filepath='lib/kstrtox.c' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoint'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='251' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='251' column='1'/>
+        <parameter type-id='7292109c' name='res' filepath='lib/kstrtox.c' line='251' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtoint_from_user' mangled-name='kstrtoint_from_user' filepath='include/linux/kernel.h' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoint_from_user'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='kstrtoint_from_user' mangled-name='kstrtoint_from_user' filepath='lib/kstrtox.c' line='409' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoint_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='409' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='409' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='409' column='1'/>
+        <parameter type-id='7292109c' name='res' filepath='lib/kstrtox.c' line='409' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='kstrtol_from_user' mangled-name='kstrtol_from_user' filepath='lib/kstrtox.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtol_from_user'>
@@ -120597,10 +115978,10 @@
         <parameter type-id='3ccc2590' name='res' filepath='lib/kstrtox.c' line='407' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtoll' mangled-name='kstrtoll' filepath='include/linux/kernel.h' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoll'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8b97c2dc'/>
+      <function-decl name='kstrtoll' mangled-name='kstrtoll' filepath='lib/kstrtox.c' line='150' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoll'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='150' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='150' column='1'/>
+        <parameter type-id='8b97c2dc' name='res' filepath='lib/kstrtox.c' line='150' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='kstrtos8' mangled-name='kstrtos8' filepath='lib/kstrtox.c' line='311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtos8'>
@@ -120609,16 +115990,16 @@
         <parameter type-id='01b75fec' name='res' filepath='lib/kstrtox.c' line='311' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtou16' mangled-name='kstrtou16' filepath='include/linux/kernel.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou16'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='26d4d46f'/>
+      <function-decl name='kstrtou16' mangled-name='kstrtou16' filepath='lib/kstrtox.c' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou16'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='266' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='266' column='1'/>
+        <parameter type-id='26d4d46f' name='res' filepath='lib/kstrtox.c' line='266' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtou8' mangled-name='kstrtou8' filepath='include/linux/kernel.h' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou8'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8bff8096'/>
+      <function-decl name='kstrtou8' mangled-name='kstrtou8' filepath='lib/kstrtox.c' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou8'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='296' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='296' column='1'/>
+        <parameter type-id='8bff8096' name='res' filepath='lib/kstrtox.c' line='296' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='kstrtou8_from_user' mangled-name='kstrtou8_from_user' filepath='lib/kstrtox.c' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtou8_from_user'>
@@ -120628,37 +116009,37 @@
         <parameter type-id='8bff8096' name='res' filepath='lib/kstrtox.c' line='412' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtouint' mangled-name='kstrtouint' filepath='include/linux/kernel.h' line='392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtouint'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='807869d3'/>
+      <function-decl name='kstrtouint' mangled-name='kstrtouint' filepath='lib/kstrtox.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtouint'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='221' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='221' column='1'/>
+        <parameter type-id='807869d3' name='res' filepath='lib/kstrtox.c' line='221' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtouint_from_user' mangled-name='kstrtouint_from_user' filepath='include/linux/kernel.h' line='425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtouint_from_user'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='807869d3'/>
+      <function-decl name='kstrtouint_from_user' mangled-name='kstrtouint_from_user' filepath='lib/kstrtox.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtouint_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='408' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='408' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='408' column='1'/>
+        <parameter type-id='807869d3' name='res' filepath='lib/kstrtox.c' line='408' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtoul_from_user' mangled-name='kstrtoul_from_user' filepath='include/linux/kernel.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoul_from_user'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='1d2c2b85'/>
+      <function-decl name='kstrtoul_from_user' mangled-name='kstrtoul_from_user' filepath='lib/kstrtox.c' line='406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoul_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='406' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='406' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='406' column='1'/>
+        <parameter type-id='1d2c2b85' name='res' filepath='lib/kstrtox.c' line='406' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtoull' mangled-name='kstrtoull' filepath='include/linux/kernel.h' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoull'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='a0c47697'/>
+      <function-decl name='kstrtoull' mangled-name='kstrtoull' filepath='lib/kstrtox.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoull'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='127' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='127' column='1'/>
+        <parameter type-id='a0c47697' name='res' filepath='lib/kstrtox.c' line='127' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kstrtoull_from_user' mangled-name='kstrtoull_from_user' filepath='include/linux/kernel.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoull_from_user'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='a0c47697'/>
+      <function-decl name='kstrtoull_from_user' mangled-name='kstrtoull_from_user' filepath='lib/kstrtox.c' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrtoull_from_user'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/kstrtox.c' line='404' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/kstrtox.c' line='404' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/kstrtox.c' line='404' column='1'/>
+        <parameter type-id='a0c47697' name='res' filepath='lib/kstrtox.c' line='404' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='kthread_bind' mangled-name='kthread_bind' filepath='kernel/kthread.c' line='490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_bind'>
@@ -120666,9 +116047,9 @@
         <parameter type-id='f0981eeb' name='cpu' filepath='kernel/kthread.c' line='490' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kthread_bind_mask' mangled-name='kthread_bind_mask' filepath='include/linux/kthread.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_bind_mask'>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='5f8a1ac4'/>
+      <function-decl name='kthread_bind_mask' mangled-name='kthread_bind_mask' filepath='kernel/kthread.c' line='475' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_bind_mask'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/kthread.c' line='475' column='1'/>
+        <parameter type-id='5f8a1ac4' name='mask' filepath='kernel/kthread.c' line='475' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kthread_cancel_delayed_work_sync' mangled-name='kthread_cancel_delayed_work_sync' filepath='kernel/kthread.c' line='1278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_cancel_delayed_work_sync'>
@@ -120679,11 +116060,11 @@
         <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='1263' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='kthread_create_on_node' mangled-name='kthread_create_on_node' filepath='include/linux/kthread.h' line='11' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_create_on_node'>
-        <parameter type-id='b9b212f5'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='kthread_create_on_node' mangled-name='kthread_create_on_node' filepath='kernel/kthread.c' line='438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_create_on_node'>
+        <parameter type-id='b9b212f5' name='threadfn' filepath='kernel/kthread.c' line='438' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/kthread.c' line='439' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='kernel/kthread.c' line='439' column='1'/>
+        <parameter type-id='80f4b756' name='namefmt' filepath='kernel/kthread.c' line='440' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='f23e2572'/>
       </function-decl>
@@ -120726,11 +116107,11 @@
         <parameter type-id='401eb95c' name='work' filepath='kernel/kthread.c' line='903' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='kthread_should_stop' mangled-name='kthread_should_stop' filepath='include/linux/kthread.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_should_stop'>
+      <function-decl name='kthread_should_stop' mangled-name='kthread_should_stop' filepath='kernel/kthread.c' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_should_stop'>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='kthread_stop' mangled-name='kthread_stop' filepath='include/linux/kthread.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_stop'>
-        <parameter type-id='f23e2572'/>
+      <function-decl name='kthread_stop' mangled-name='kthread_stop' filepath='kernel/kthread.c' line='631' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_stop'>
+        <parameter type-id='f23e2572' name='k' filepath='kernel/kthread.c' line='631' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='kthread_unuse_mm' mangled-name='kthread_unuse_mm' filepath='kernel/kthread.c' line='1365' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kthread_unuse_mm'>
@@ -120750,10 +116131,10 @@
         <parameter type-id='ddb8523f' name='rhs' filepath='kernel/time/hrtimer.c' line='327' column='1'/>
         <return type-id='fbc017ef'/>
       </function-decl>
-      <function-decl name='ktime_get' mangled-name='ktime_get' filepath='include/linux/timekeeping.h' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get'>
+      <function-decl name='ktime_get' mangled-name='ktime_get' filepath='kernel/time/timekeeping.c' line='821' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get'>
         <return type-id='fbc017ef'/>
       </function-decl>
-      <function-decl name='ktime_get_mono_fast_ns' mangled-name='ktime_get_mono_fast_ns' filepath='include/linux/timekeeping.h' line='178' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_mono_fast_ns'>
+      <function-decl name='ktime_get_mono_fast_ns' mangled-name='ktime_get_mono_fast_ns' filepath='kernel/time/timekeeping.c' line='492' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_mono_fast_ns'>
         <return type-id='91ce1af9'/>
       </function-decl>
       <function-decl name='ktime_get_raw' mangled-name='ktime_get_raw' filepath='kernel/time/timekeeping.c' line='928' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_raw'>
@@ -120766,30 +116147,30 @@
       <function-decl name='ktime_get_real_seconds' mangled-name='ktime_get_real_seconds' filepath='kernel/time/timekeeping.c' line='1006' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_real_seconds'>
         <return type-id='1afd27ac'/>
       </function-decl>
-      <function-decl name='ktime_get_real_ts64' mangled-name='ktime_get_real_ts64' filepath='include/linux/timekeeping.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_real_ts64'>
-        <parameter type-id='4151733d'/>
+      <function-decl name='ktime_get_real_ts64' mangled-name='ktime_get_real_ts64' filepath='kernel/time/timekeeping.c' line='800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_real_ts64'>
+        <parameter type-id='4151733d' name='ts' filepath='kernel/time/timekeeping.c' line='800' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ktime_get_snapshot' mangled-name='ktime_get_snapshot' filepath='include/linux/timekeeping.h' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_snapshot'>
-        <parameter type-id='9e33b18d'/>
+      <function-decl name='ktime_get_snapshot' mangled-name='ktime_get_snapshot' filepath='kernel/time/timekeeping.c' line='1041' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_snapshot'>
+        <parameter type-id='9e33b18d' name='systime_snapshot' filepath='kernel/time/timekeeping.c' line='1041' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ktime_get_ts64' mangled-name='ktime_get_ts64' filepath='kernel/time/timekeeping.c' line='954' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_ts64'>
         <parameter type-id='4151733d' name='ts' filepath='kernel/time/timekeeping.c' line='954' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ktime_get_with_offset' mangled-name='ktime_get_with_offset' filepath='include/linux/timekeeping.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_with_offset'>
-        <parameter type-id='73bb584e'/>
+      <function-decl name='ktime_get_with_offset' mangled-name='ktime_get_with_offset' filepath='kernel/time/timekeeping.c' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ktime_get_with_offset'>
+        <parameter type-id='73bb584e' name='offs' filepath='kernel/time/timekeeping.c' line='864' column='1'/>
         <return type-id='fbc017ef'/>
       </function-decl>
-      <function-decl name='kvasprintf' mangled-name='kvasprintf' filepath='include/linux/kernel.h' line='489' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvasprintf'>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2aee9912'/>
+      <function-decl name='kvasprintf' mangled-name='kvasprintf' filepath='lib/kasprintf.c' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvasprintf'>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='lib/kasprintf.c' line='15' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/kasprintf.c' line='15' column='1'/>
+        <parameter type-id='2aee9912' name='ap' filepath='lib/kasprintf.c' line='15' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='kvfree' mangled-name='kvfree' filepath='include/linux/mm.h' line='848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='kvfree' mangled-name='kvfree' filepath='mm/util.c' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/util.c' line='608' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kvfree_call_rcu' mangled-name='kvfree_call_rcu' filepath='kernel/rcu/tree.c' line='3466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree_call_rcu'>
@@ -120797,20 +116178,20 @@
         <parameter type-id='4edd56e3' name='func' filepath='kernel/rcu/tree.c' line='3466' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kvmalloc_node' mangled-name='kvmalloc_node' filepath='include/linux/mm.h' line='819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvmalloc_node'>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='kvmalloc_node' mangled-name='kvmalloc_node' filepath='mm/util.c' line='554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvmalloc_node'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/util.c' line='554' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='mm/util.c' line='554' column='1'/>
+        <parameter type-id='95e97e5e' name='node' filepath='mm/util.c' line='554' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='led_classdev_register_ext' mangled-name='led_classdev_register_ext' filepath='include/linux/leds.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_classdev_register_ext'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='bd1c8eb6'/>
-        <parameter type-id='eebb8ee8'/>
+      <function-decl name='led_classdev_register_ext' mangled-name='led_classdev_register_ext' filepath='drivers/leds/led-class.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_classdev_register_ext'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/leds/led-class.c' line='336' column='1'/>
+        <parameter type-id='bd1c8eb6' name='led_cdev' filepath='drivers/leds/led-class.c' line='337' column='1'/>
+        <parameter type-id='eebb8ee8' name='init_data' filepath='drivers/leds/led-class.c' line='338' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='led_classdev_unregister' mangled-name='led_classdev_unregister' filepath='include/linux/leds.h' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_classdev_unregister'>
-        <parameter type-id='bd1c8eb6'/>
+      <function-decl name='led_classdev_unregister' mangled-name='led_classdev_unregister' filepath='drivers/leds/led-class.c' line='431' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_classdev_unregister'>
+        <parameter type-id='bd1c8eb6' name='led_cdev' filepath='drivers/leds/led-class.c' line='431' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='led_set_brightness_nosleep' mangled-name='led_set_brightness_nosleep' filepath='drivers/leds/led-core.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_set_brightness_nosleep'>
@@ -120818,9 +116199,9 @@
         <parameter type-id='fa598f35' name='value' filepath='drivers/leds/led-core.c' line='285' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='led_trigger_event' mangled-name='led_trigger_event' filepath='include/linux/leds.h' line='386' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_event'>
-        <parameter type-id='db6d90a1'/>
-        <parameter type-id='fa598f35'/>
+      <function-decl name='led_trigger_event' mangled-name='led_trigger_event' filepath='drivers/leds/led-triggers.c' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_event'>
+        <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='377' column='1'/>
+        <parameter type-id='fa598f35' name='brightness' filepath='drivers/leds/led-triggers.c' line='378' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='led_trigger_register' mangled-name='led_trigger_register' filepath='drivers/leds/led-triggers.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_register'>
@@ -120831,21 +116212,21 @@
         <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='323' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='list_sort' mangled-name='list_sort' filepath='include/linux/list_sort.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_sort'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='e84b031a'/>
-        <parameter type-id='9c752ec9'/>
+      <function-decl name='list_sort' mangled-name='list_sort' filepath='lib/list_sort.c' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_sort'>
+        <parameter type-id='eaa32e2f' name='priv' filepath='lib/list_sort.c' line='185' column='1'/>
+        <parameter type-id='e84b031a' name='head' filepath='lib/list_sort.c' line='185' column='1'/>
+        <parameter type-id='9c752ec9' name='cmp' filepath='lib/list_sort.c' line='185' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='llist_add_batch' mangled-name='llist_add_batch' filepath='include/linux/llist.h' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='llist_add_batch'>
-        <parameter type-id='023b769e'/>
-        <parameter type-id='023b769e'/>
-        <parameter type-id='b0222d74'/>
+      <function-decl name='llist_add_batch' mangled-name='llist_add_batch' filepath='lib/llist.c' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='llist_add_batch'>
+        <parameter type-id='023b769e' name='new_first' filepath='lib/llist.c' line='26' column='1'/>
+        <parameter type-id='023b769e' name='new_last' filepath='lib/llist.c' line='26' column='1'/>
+        <parameter type-id='b0222d74' name='head' filepath='lib/llist.c' line='27' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='lock_sock_nested' mangled-name='lock_sock_nested' filepath='include/net/sock.h' line='1592' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lock_sock_nested'>
-        <parameter type-id='f772df6d'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='lock_sock_nested' mangled-name='lock_sock_nested' filepath='net/core/sock.c' line='3068' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lock_sock_nested'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='3068' column='1'/>
+        <parameter type-id='95e97e5e' name='subclass' filepath='net/core/sock.c' line='3068' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='log_abnormal_wakeup_reason' mangled-name='log_abnormal_wakeup_reason' filepath='kernel/power/wakeup_reason.c' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='log_abnormal_wakeup_reason'>
@@ -120867,11 +116248,11 @@
         <parameter type-id='eaa32e2f' name='wrkmem' filepath='lib/lzo/lzo1x_compress.c' line='383' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='lzo1x_decompress_safe' mangled-name='lzo1x_decompress_safe' filepath='include/linux/lzo.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzo1x_decompress_safe'>
-        <parameter type-id='354f7eb9'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='cf536864'/>
-        <parameter type-id='78c01427'/>
+      <function-decl name='lzo1x_decompress_safe' mangled-name='lzo1x_decompress_safe' filepath='lib/lzo/lzo1x_decompress_safe.c' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzo1x_decompress_safe'>
+        <parameter type-id='354f7eb9' name='in' filepath='lib/lzo/lzo1x_decompress_safe.c' line='39' column='1'/>
+        <parameter type-id='b59d7dce' name='in_len' filepath='lib/lzo/lzo1x_decompress_safe.c' line='39' column='1'/>
+        <parameter type-id='cf536864' name='out' filepath='lib/lzo/lzo1x_decompress_safe.c' line='40' column='1'/>
+        <parameter type-id='78c01427' name='out_len' filepath='lib/lzo/lzo1x_decompress_safe.c' line='40' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='lzorle1x_1_compress' mangled-name='lzorle1x_1_compress' filepath='lib/lzo/lzo1x_compress.c' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='lzorle1x_1_compress'>
@@ -120892,9 +116273,9 @@
         <parameter type-id='eaa32e2f' name='mssg' filepath='drivers/mailbox/mailbox.c' line='152' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mbox_client_txdone' mangled-name='mbox_client_txdone' filepath='include/linux/mailbox_client.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_client_txdone'>
-        <parameter type-id='339c87e8'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='mbox_client_txdone' mangled-name='mbox_client_txdone' filepath='drivers/mailbox/mailbox.c' line='191' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_client_txdone'>
+        <parameter type-id='339c87e8' name='chan' filepath='drivers/mailbox/mailbox.c' line='191' column='1'/>
+        <parameter type-id='95e97e5e' name='r' filepath='drivers/mailbox/mailbox.c' line='191' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='mbox_controller_register' mangled-name='mbox_controller_register' filepath='drivers/mailbox/mailbox.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_controller_register'>
@@ -120905,39 +116286,39 @@
         <parameter type-id='fb648468' name='mbox' filepath='drivers/mailbox/mailbox.c' line='529' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mbox_free_channel' mangled-name='mbox_free_channel' filepath='include/linux/mailbox_client.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_free_channel'>
-        <parameter type-id='339c87e8'/>
+      <function-decl name='mbox_free_channel' mangled-name='mbox_free_channel' filepath='drivers/mailbox/mailbox.c' line='438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_free_channel'>
+        <parameter type-id='339c87e8' name='chan' filepath='drivers/mailbox/mailbox.c' line='438' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mbox_request_channel' mangled-name='mbox_request_channel' filepath='include/linux/mailbox_client.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_request_channel'>
-        <parameter type-id='aeae13b9'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='mbox_request_channel' mangled-name='mbox_request_channel' filepath='drivers/mailbox/mailbox.c' line='331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_request_channel'>
+        <parameter type-id='aeae13b9' name='cl' filepath='drivers/mailbox/mailbox.c' line='331' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/mailbox/mailbox.c' line='331' column='1'/>
         <return type-id='339c87e8'/>
       </function-decl>
-      <function-decl name='mbox_send_message' mangled-name='mbox_send_message' filepath='include/linux/mailbox_client.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_send_message'>
-        <parameter type-id='339c87e8'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='mbox_send_message' mangled-name='mbox_send_message' filepath='drivers/mailbox/mailbox.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mbox_send_message'>
+        <parameter type-id='339c87e8' name='chan' filepath='drivers/mailbox/mailbox.c' line='250' column='1'/>
+        <parameter type-id='eaa32e2f' name='mssg' filepath='drivers/mailbox/mailbox.c' line='250' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='memchr_inv' mangled-name='memchr_inv' filepath='include/linux/string.h' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memchr_inv'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='memchr_inv' mangled-name='memchr_inv' filepath='lib/string.c' line='1087' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memchr_inv'>
+        <parameter type-id='eaa32e2f' name='start' filepath='lib/string.c' line='1087' column='1'/>
+        <parameter type-id='95e97e5e' name='c' filepath='lib/string.c' line='1087' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='lib/string.c' line='1087' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='memdup_user' mangled-name='memdup_user' filepath='include/linux/string.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memdup_user'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='memdup_user' mangled-name='memdup_user' filepath='mm/util.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memdup_user'>
+        <parameter type-id='eaa32e2f' name='src' filepath='mm/util.c' line='172' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='172' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='memdup_user_nul' mangled-name='memdup_user_nul' filepath='include/linux/string.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memdup_user_nul'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='memdup_user_nul' mangled-name='memdup_user_nul' filepath='mm/util.c' line='254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memdup_user_nul'>
+        <parameter type-id='eaa32e2f' name='src' filepath='mm/util.c' line='254' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='254' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='memparse' mangled-name='memparse' filepath='include/linux/kernel.h' line='500' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memparse'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='9b23c9ad'/>
+      <function-decl name='memparse' mangled-name='memparse' filepath='lib/cmdline.c' line='125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memparse'>
+        <parameter type-id='80f4b756' name='ptr' filepath='lib/cmdline.c' line='125' column='1'/>
+        <parameter type-id='9b23c9ad' name='retptr' filepath='lib/cmdline.c' line='125' column='1'/>
         <return type-id='0d77e947'/>
       </function-decl>
       <function-decl name='mempool_alloc' mangled-name='mempool_alloc' filepath='mm/mempool.c' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mempool_alloc'>
@@ -120990,10 +116371,10 @@
         <parameter type-id='eaa32e2f' name='pool_data' filepath='mm/mempool.c' line='528' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='memremap' mangled-name='memremap' filepath='include/linux/io.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memremap'>
-        <parameter type-id='acc63fdf'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='memremap' mangled-name='memremap' filepath='kernel/iomem.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memremap'>
+        <parameter type-id='acc63fdf' name='offset' filepath='kernel/iomem.c' line='71' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/iomem.c' line='71' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/iomem.c' line='71' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='memset64' mangled-name='memset64' filepath='lib/string.c' line='863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='memset64'>
@@ -121123,18 +116504,18 @@
         <parameter type-id='2b4a193c' name='pps' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='589' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
-      <function-decl name='misc_deregister' mangled-name='misc_deregister' filepath='include/linux/miscdevice.h' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='misc_deregister'>
-        <parameter type-id='c63257f7'/>
+      <function-decl name='misc_deregister' mangled-name='misc_deregister' filepath='drivers/char/misc.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='misc_deregister'>
+        <parameter type-id='c63257f7' name='misc' filepath='drivers/char/misc.c' line='239' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='misc_register' mangled-name='misc_register' filepath='include/linux/miscdevice.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='misc_register'>
-        <parameter type-id='c63257f7'/>
+      <function-decl name='misc_register' mangled-name='misc_register' filepath='drivers/char/misc.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='misc_register'>
+        <parameter type-id='c63257f7' name='misc' filepath='drivers/char/misc.c' line='173' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mm_trace_rss_stat' mangled-name='mm_trace_rss_stat' filepath='include/linux/mm.h' line='2040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_trace_rss_stat'>
-        <parameter type-id='df4b7819'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='mm_trace_rss_stat' mangled-name='mm_trace_rss_stat' filepath='mm/memory.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_trace_rss_stat'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/memory.c' line='175' column='1'/>
+        <parameter type-id='95e97e5e' name='member' filepath='mm/memory.c' line='175' column='1'/>
+        <parameter type-id='bd54fe1a' name='count' filepath='mm/memory.c' line='175' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='mmc_add_host' mangled-name='mmc_add_host' filepath='drivers/mmc/core/host.c' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_add_host'>
@@ -121175,8 +116556,8 @@
         <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='1026' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mmc_cmdq_enable' mangled-name='mmc_cmdq_enable' filepath='drivers/mmc/core/mmc_ops.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cmdq_enable'>
-        <parameter type-id='13d38dcb'/>
+      <function-decl name='mmc_cmdq_enable' mangled-name='mmc_cmdq_enable' filepath='drivers/mmc/core/mmc_ops.c' line='1020' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cmdq_enable'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='1020' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='mmc_cqe_post_req' mangled-name='mmc_cqe_post_req' filepath='drivers/mmc/core/core.c' line='516' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_cqe_post_req'>
@@ -121229,8 +116610,8 @@
         <parameter type-id='f0981eeb' name='nr' filepath='drivers/mmc/core/core.c' line='1926' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mmc_flush_cache' mangled-name='mmc_flush_cache' filepath='drivers/mmc/core/mmc_ops.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_flush_cache'>
-        <parameter type-id='13d38dcb'/>
+      <function-decl name='mmc_flush_cache' mangled-name='mmc_flush_cache' filepath='drivers/mmc/core/mmc_ops.c' line='987' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_flush_cache'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='987' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='mmc_free_host' mangled-name='mmc_free_host' filepath='drivers/mmc/core/host.c' line='577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_free_host'>
@@ -121242,9 +116623,9 @@
         <parameter type-id='f1e196e0' name='ctx' filepath='drivers/mmc/core/core.c' line='857' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mmc_get_ext_csd' mangled-name='mmc_get_ext_csd' filepath='drivers/mmc/core/mmc_ops.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_get_ext_csd'>
-        <parameter type-id='13d38dcb'/>
-        <parameter type-id='1f37a7f4'/>
+      <function-decl name='mmc_get_ext_csd' mangled-name='mmc_get_ext_csd' filepath='drivers/mmc/core/mmc_ops.c' line='358' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_get_ext_csd'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='358' column='1'/>
+        <parameter type-id='1f37a7f4' name='new_ext_csd' filepath='drivers/mmc/core/mmc_ops.c' line='358' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='mmc_gpio_get_cd' mangled-name='mmc_gpio_get_cd' filepath='drivers/mmc/core/slot-gpio.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpio_get_cd'>
@@ -121255,23 +116636,23 @@
         <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='69' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mmc_gpiod_request_cd' mangled-name='mmc_gpiod_request_cd' filepath='include/linux/mmc/slot-gpio.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_cd'>
-        <parameter type-id='dd575c43'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='mmc_gpiod_request_cd' mangled-name='mmc_gpiod_request_cd' filepath='drivers/mmc/core/slot-gpio.c' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_cd'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='176' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/mmc/core/slot-gpio.c' line='176' column='1'/>
+        <parameter type-id='f0981eeb' name='idx' filepath='drivers/mmc/core/slot-gpio.c' line='177' column='1'/>
+        <parameter type-id='b50a4934' name='override_active_level' filepath='drivers/mmc/core/slot-gpio.c' line='177' column='1'/>
+        <parameter type-id='f0981eeb' name='debounce' filepath='drivers/mmc/core/slot-gpio.c' line='178' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mmc_gpiod_request_cd_irq' mangled-name='mmc_gpiod_request_cd_irq' filepath='include/linux/mmc/slot-gpio.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_cd_irq'>
-        <parameter type-id='dd575c43'/>
+      <function-decl name='mmc_gpiod_request_cd_irq' mangled-name='mmc_gpiod_request_cd_irq' filepath='drivers/mmc/core/slot-gpio.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_cd_irq'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='95' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mmc_gpiod_request_ro' mangled-name='mmc_gpiod_request_ro' filepath='include/linux/mmc/slot-gpio.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_ro'>
-        <parameter type-id='dd575c43'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='mmc_gpiod_request_ro' mangled-name='mmc_gpiod_request_ro' filepath='drivers/mmc/core/slot-gpio.c' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_gpiod_request_ro'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/slot-gpio.c' line='225' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/mmc/core/slot-gpio.c' line='225' column='1'/>
+        <parameter type-id='f0981eeb' name='idx' filepath='drivers/mmc/core/slot-gpio.c' line='226' column='1'/>
+        <parameter type-id='f0981eeb' name='debounce' filepath='drivers/mmc/core/slot-gpio.c' line='226' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='mmc_hw_reset' mangled-name='mmc_hw_reset' filepath='drivers/mmc/core/core.c' line='2082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_hw_reset'>
@@ -121328,8 +116709,8 @@
         <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='120' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mmc_retune_release' mangled-name='mmc_retune_release' filepath='drivers/mmc/core/host.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_retune_release'>
-        <parameter type-id='dd575c43'/>
+      <function-decl name='mmc_retune_release' mangled-name='mmc_retune_release' filepath='drivers/mmc/core/host.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_retune_release'>
+        <parameter type-id='dd575c43' name='host' filepath='drivers/mmc/core/host.c' line='161' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='mmc_retune_unpause' mangled-name='mmc_retune_unpause' filepath='drivers/mmc/core/host.c' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_retune_unpause'>
@@ -121344,9 +116725,9 @@
         <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='1032' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mmc_send_status' mangled-name='mmc_send_status' filepath='drivers/mmc/core/mmc_ops.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_send_status'>
-        <parameter type-id='13d38dcb'/>
-        <parameter type-id='f9409001'/>
+      <function-decl name='mmc_send_status' mangled-name='mmc_send_status' filepath='drivers/mmc/core/mmc_ops.c' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_send_status'>
+        <parameter type-id='13d38dcb' name='card' filepath='drivers/mmc/core/mmc_ops.c' line='80' column='1'/>
+        <parameter type-id='f9409001' name='status' filepath='drivers/mmc/core/mmc_ops.c' line='80' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='mmc_send_tuning' mangled-name='mmc_send_tuning' filepath='drivers/mmc/core/mmc_ops.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_send_tuning'>
@@ -121408,45 +116789,45 @@
         <parameter type-id='e525e121' name='tp' filepath='kernel/module.c' line='4828' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='module_put' mangled-name='module_put' filepath='include/linux/module.h' line='646' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='module_put'>
-        <parameter type-id='2730d015'/>
+      <function-decl name='module_put' mangled-name='module_put' filepath='kernel/module.c' line='1158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='module_put'>
+        <parameter type-id='2730d015' name='module' filepath='kernel/module.c' line='1158' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='msleep' mangled-name='msleep' filepath='include/linux/delay.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='msleep'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='msleep' mangled-name='msleep' filepath='kernel/time/timer.c' line='2030' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='msleep'>
+        <parameter type-id='f0981eeb' name='msecs' filepath='kernel/time/timer.c' line='2030' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='msleep_interruptible' mangled-name='msleep_interruptible' filepath='kernel/time/timer.c' line='2044' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='msleep_interruptible'>
         <parameter type-id='f0981eeb' name='msecs' filepath='kernel/time/timer.c' line='2044' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='mutex_is_locked' mangled-name='mutex_is_locked' filepath='include/linux/mutex.h' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_is_locked'>
-        <parameter type-id='e0ea832a'/>
+      <function-decl name='mutex_is_locked' mangled-name='mutex_is_locked' filepath='kernel/locking/mutex.c' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_is_locked'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='85' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='mutex_lock' mangled-name='mutex_lock' filepath='include/linux/mutex.h' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_lock'>
-        <parameter type-id='e0ea832a'/>
+      <function-decl name='mutex_lock' mangled-name='mutex_lock' filepath='kernel/locking/mutex.c' line='294' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_lock'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='294' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='mutex_lock_interruptible' mangled-name='mutex_lock_interruptible' filepath='include/linux/mutex.h' line='182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_lock_interruptible'>
-        <parameter type-id='e0ea832a'/>
+      <function-decl name='mutex_lock_interruptible' mangled-name='mutex_lock_interruptible' filepath='kernel/locking/mutex.c' line='1321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_lock_interruptible'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='1321' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mutex_trylock' mangled-name='mutex_trylock' filepath='include/linux/mutex.h' line='199' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_trylock'>
-        <parameter type-id='e0ea832a'/>
+      <function-decl name='mutex_trylock' mangled-name='mutex_trylock' filepath='kernel/locking/mutex.c' line='1425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_trylock'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='1425' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='mutex_trylock_recursive' mangled-name='mutex_trylock_recursive' filepath='kernel/locking/mutex.c' line='92' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_trylock_recursive'>
         <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='92' column='1'/>
         <return type-id='9a6ea243'/>
       </function-decl>
-      <function-decl name='mutex_unlock' mangled-name='mutex_unlock' filepath='include/linux/mutex.h' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_unlock'>
-        <parameter type-id='e0ea832a'/>
+      <function-decl name='mutex_unlock' mangled-name='mutex_unlock' filepath='kernel/locking/mutex.c' line='749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mutex_unlock'>
+        <parameter type-id='e0ea832a' name='lock' filepath='kernel/locking/mutex.c' line='749' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='napi_complete_done' mangled-name='napi_complete_done' filepath='include/linux/netdevice.h' line='486' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_complete_done'>
-        <parameter type-id='c50361c5'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='napi_complete_done' mangled-name='napi_complete_done' filepath='net/core/dev.c' line='6484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_complete_done'>
+        <parameter type-id='c50361c5' name='n' filepath='net/core/dev.c' line='6484' column='1'/>
+        <parameter type-id='95e97e5e' name='work_done' filepath='net/core/dev.c' line='6484' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='napi_consume_skb' mangled-name='napi_consume_skb' filepath='net/core/skbuff.c' line='909' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_consume_skb'>
@@ -121454,8 +116835,8 @@
         <parameter type-id='95e97e5e' name='budget' filepath='net/core/skbuff.c' line='909' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='napi_disable' mangled-name='napi_disable' filepath='include/linux/netdevice.h' line='507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_disable'>
-        <parameter type-id='c50361c5'/>
+      <function-decl name='napi_disable' mangled-name='napi_disable' filepath='net/core/dev.c' line='6771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_disable'>
+        <parameter type-id='c50361c5' name='n' filepath='net/core/dev.c' line='6771' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='napi_gro_flush' mangled-name='napi_gro_flush' filepath='net/core/dev.c' line='5847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_flush'>
@@ -121463,13 +116844,13 @@
         <parameter type-id='b50a4934' name='flush_old' filepath='net/core/dev.c' line='5847' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='napi_gro_receive' mangled-name='napi_gro_receive' filepath='include/linux/netdevice.h' line='3915' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_receive'>
-        <parameter type-id='c50361c5'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='napi_gro_receive' mangled-name='napi_gro_receive' filepath='net/core/dev.c' line='6148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_gro_receive'>
+        <parameter type-id='c50361c5' name='napi' filepath='net/core/dev.c' line='6148' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='6148' column='1'/>
         <return type-id='dc1b1685'/>
       </function-decl>
-      <function-decl name='napi_schedule_prep' mangled-name='napi_schedule_prep' filepath='include/linux/netdevice.h' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_schedule_prep'>
-        <parameter type-id='c50361c5'/>
+      <function-decl name='napi_schedule_prep' mangled-name='napi_schedule_prep' filepath='net/core/dev.c' line='6441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='napi_schedule_prep'>
+        <parameter type-id='c50361c5' name='n' filepath='net/core/dev.c' line='6441' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <var-decl name='net_namespace_list' type-id='72f469ec' mangled-name='net_namespace_list' visibility='default' filepath='net/core/net_namespace.c' line='36' column='1' elf-symbol-id='net_namespace_list'/>
@@ -121480,9 +116861,9 @@
         <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9859' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netdev_err' mangled-name='netdev_err' filepath='include/linux/netdevice.h' line='5128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_err'>
-        <parameter type-id='2ce52478'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='netdev_err' mangled-name='netdev_err' filepath='net/core/dev.c' line='11146' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_err'>
+        <parameter type-id='2ce52478' name='dev' filepath='net/core/dev.c' line='11146' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='net/core/dev.c' line='11146' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
@@ -121492,9 +116873,9 @@
         <parameter type-id='f9f4b16f' name='mask' filepath='net/core/dev.c' line='11011' column='1'/>
         <return type-id='f9f4b16f'/>
       </function-decl>
-      <function-decl name='netdev_info' mangled-name='netdev_info' filepath='include/linux/netdevice.h' line='5134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_info'>
-        <parameter type-id='2ce52478'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='netdev_info' mangled-name='netdev_info' filepath='net/core/dev.c' line='11149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_info'>
+        <parameter type-id='2ce52478' name='dev' filepath='net/core/dev.c' line='11149' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='net/core/dev.c' line='11149' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
@@ -121531,12 +116912,12 @@
         <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='5100' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netdev_state_change' mangled-name='netdev_state_change' filepath='include/linux/netdevice.h' line='4606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_state_change'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netdev_state_change' mangled-name='netdev_state_change' filepath='net/core/dev.c' line='1477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_state_change'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='1477' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netdev_update_features' mangled-name='netdev_update_features' filepath='include/linux/netdevice.h' line='4895' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_update_features'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netdev_update_features' mangled-name='netdev_update_features' filepath='net/core/dev.c' line='9842' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_update_features'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9842' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='netdev_upper_dev_link' mangled-name='netdev_upper_dev_link' filepath='net/core/dev.c' line='7905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_upper_dev_link'>
@@ -121550,63 +116931,63 @@
         <parameter type-id='68a2d05b' name='upper_dev' filepath='net/core/dev.c' line='7989' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netdev_warn' mangled-name='netdev_warn' filepath='include/linux/netdevice.h' line='5130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_warn'>
-        <parameter type-id='2ce52478'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='netdev_warn' mangled-name='netdev_warn' filepath='net/core/dev.c' line='11147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netdev_warn'>
+        <parameter type-id='2ce52478' name='dev' filepath='net/core/dev.c' line='11147' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='net/core/dev.c' line='11147' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_carrier_off' mangled-name='netif_carrier_off' filepath='include/linux/netdevice.h' line='4074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_carrier_off'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netif_carrier_off' mangled-name='netif_carrier_off' filepath='net/sched/sch_generic.c' line='532' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_carrier_off'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/sched/sch_generic.c' line='532' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_carrier_on' mangled-name='netif_carrier_on' filepath='include/linux/netdevice.h' line='4072' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_carrier_on'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netif_carrier_on' mangled-name='netif_carrier_on' filepath='net/sched/sch_generic.c' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_carrier_on'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/sched/sch_generic.c' line='513' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_device_attach' mangled-name='netif_device_attach' filepath='include/linux/netdevice.h' line='4183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_device_attach'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netif_device_attach' mangled-name='netif_device_attach' filepath='net/core/dev.c' line='3156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_device_attach'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='3156' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_device_detach' mangled-name='netif_device_detach' filepath='include/linux/netdevice.h' line='4181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_device_detach'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netif_device_detach' mangled-name='netif_device_detach' filepath='net/core/dev.c' line='3141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_device_detach'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='3141' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_napi_add' mangled-name='netif_napi_add' filepath='include/linux/netdevice.h' line='2427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_napi_add'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='c50361c5'/>
-        <parameter type-id='f07d90b4'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='netif_napi_add' mangled-name='netif_napi_add' filepath='net/core/dev.c' line='6741' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_napi_add'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='6741' column='1'/>
+        <parameter type-id='c50361c5' name='napi' filepath='net/core/dev.c' line='6741' column='1'/>
+        <parameter type-id='f07d90b4' name='poll' filepath='net/core/dev.c' line='6742' column='1'/>
+        <parameter type-id='95e97e5e' name='weight' filepath='net/core/dev.c' line='6742' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_receive_skb' mangled-name='netif_receive_skb' filepath='include/linux/netdevice.h' line='3912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_receive_skb'>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='netif_receive_skb' mangled-name='netif_receive_skb' filepath='net/core/dev.c' line='5635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_receive_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='5635' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='netif_receive_skb_list' mangled-name='netif_receive_skb_list' filepath='net/core/dev.c' line='5658' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_receive_skb_list'>
         <parameter type-id='e84b031a' name='head' filepath='net/core/dev.c' line='5658' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_rx' mangled-name='netif_rx' filepath='include/linux/netdevice.h' line='3909' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx'>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='netif_rx' mangled-name='netif_rx' filepath='net/core/dev.c' line='4847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='4847' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='netif_rx_ni' mangled-name='netif_rx_ni' filepath='include/linux/netdevice.h' line='3910' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx_ni'>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='netif_rx_ni' mangled-name='netif_rx_ni' filepath='net/core/dev.c' line='4860' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_rx_ni'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/dev.c' line='4860' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='netif_schedule_queue' mangled-name='netif_schedule_queue' filepath='include/linux/netdevice.h' line='3344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_schedule_queue'>
-        <parameter type-id='35b28c4f'/>
+      <function-decl name='netif_schedule_queue' mangled-name='netif_schedule_queue' filepath='net/core/dev.c' line='3078' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_schedule_queue'>
+        <parameter type-id='35b28c4f' name='txq' filepath='net/core/dev.c' line='3078' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_set_real_num_rx_queues' mangled-name='netif_set_real_num_rx_queues' filepath='include/linux/netdevice.h' line='3829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_set_real_num_rx_queues'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='netif_set_real_num_rx_queues' mangled-name='netif_set_real_num_rx_queues' filepath='net/core/dev.c' line='3013' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_set_real_num_rx_queues'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='3013' column='1'/>
+        <parameter type-id='f0981eeb' name='rxq' filepath='net/core/dev.c' line='3013' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='netif_set_real_num_tx_queues' mangled-name='netif_set_real_num_tx_queues' filepath='include/linux/netdevice.h' line='3826' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_set_real_num_tx_queues'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='netif_set_real_num_tx_queues' mangled-name='netif_set_real_num_tx_queues' filepath='net/core/dev.c' line='2961' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_set_real_num_tx_queues'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='2961' column='1'/>
+        <parameter type-id='f0981eeb' name='txq' filepath='net/core/dev.c' line='2961' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='netif_stacked_transfer_operstate' mangled-name='netif_stacked_transfer_operstate' filepath='net/core/dev.c' line='9875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_stacked_transfer_operstate'>
@@ -121614,12 +116995,12 @@
         <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9876' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_tx_stop_all_queues' mangled-name='netif_tx_stop_all_queues' filepath='include/linux/netdevice.h' line='3421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_tx_stop_all_queues'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='netif_tx_stop_all_queues' mangled-name='netif_tx_stop_all_queues' filepath='net/core/dev.c' line='9983' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_tx_stop_all_queues'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='9983' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='netif_tx_wake_queue' mangled-name='netif_tx_wake_queue' filepath='include/linux/netdevice.h' line='3380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_tx_wake_queue'>
-        <parameter type-id='35b28c4f'/>
+      <function-decl name='netif_tx_wake_queue' mangled-name='netif_tx_wake_queue' filepath='net/core/dev.c' line='3090' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netif_tx_wake_queue'>
+        <parameter type-id='35b28c4f' name='dev_queue' filepath='net/core/dev.c' line='3090' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='netlink_broadcast' mangled-name='netlink_broadcast' filepath='net/netlink/af_netlink.c' line='1540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_broadcast'>
@@ -121630,36 +117011,36 @@
         <parameter type-id='3eb7c31c' name='allocation' filepath='net/netlink/af_netlink.c' line='1541' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='netlink_has_listeners' mangled-name='netlink_has_listeners' filepath='include/linux/netlink.h' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_has_listeners'>
-        <parameter type-id='f772df6d'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='netlink_has_listeners' mangled-name='netlink_has_listeners' filepath='net/netlink/af_netlink.c' line='1356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_has_listeners'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/netlink/af_netlink.c' line='1356' column='1'/>
+        <parameter type-id='f0981eeb' name='group' filepath='net/netlink/af_netlink.c' line='1356' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='netlink_kernel_release' mangled-name='netlink_kernel_release' filepath='include/linux/netlink.h' line='145' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_kernel_release'>
-        <parameter type-id='f772df6d'/>
+      <function-decl name='netlink_kernel_release' mangled-name='netlink_kernel_release' filepath='net/netlink/af_netlink.c' line='2115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_kernel_release'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/netlink/af_netlink.c' line='2115' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='netlink_register_notifier' mangled-name='netlink_register_notifier' filepath='net/netlink/af_netlink.c' line='2747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_register_notifier'>
         <parameter type-id='d504f73d' name='nb' filepath='net/netlink/af_netlink.c' line='2747' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='netlink_unicast' mangled-name='netlink_unicast' filepath='include/linux/netlink.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_unicast'>
-        <parameter type-id='f772df6d'/>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='3f1a6b60'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='netlink_unicast' mangled-name='netlink_unicast' filepath='net/netlink/af_netlink.c' line='1320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_unicast'>
+        <parameter type-id='f772df6d' name='ssk' filepath='net/netlink/af_netlink.c' line='1320' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/netlink/af_netlink.c' line='1320' column='1'/>
+        <parameter type-id='19c2251e' name='portid' filepath='net/netlink/af_netlink.c' line='1321' column='1'/>
+        <parameter type-id='95e97e5e' name='nonblock' filepath='net/netlink/af_netlink.c' line='1321' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='netlink_unregister_notifier' mangled-name='netlink_unregister_notifier' filepath='net/netlink/af_netlink.c' line='2753' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='netlink_unregister_notifier'>
         <parameter type-id='d504f73d' name='nb' filepath='net/netlink/af_netlink.c' line='2753' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='new_inode' mangled-name='new_inode' filepath='include/linux/fs.h' line='3000' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='new_inode'>
-        <parameter type-id='42c8f564'/>
+      <function-decl name='new_inode' mangled-name='new_inode' filepath='fs/inode.c' line='953' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='new_inode'>
+        <parameter type-id='42c8f564' name='sb' filepath='fs/inode.c' line='953' column='1'/>
         <return type-id='7e666abe'/>
       </function-decl>
-      <function-decl name='nf_conntrack_destroy' mangled-name='nf_conntrack_destroy' filepath='include/linux/netfilter/nf_conntrack_common.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nf_conntrack_destroy'>
-        <parameter type-id='96b07343'/>
+      <function-decl name='nf_conntrack_destroy' mangled-name='nf_conntrack_destroy' filepath='net/netfilter/core.c' line='670' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nf_conntrack_destroy'>
+        <parameter type-id='96b07343' name='nfct' filepath='net/netfilter/core.c' line='670' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='nla_append' mangled-name='nla_append' filepath='lib/nlattr.c' line='1101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_append'>
@@ -121674,11 +117055,11 @@
         <parameter type-id='95e97e5e' name='count' filepath='lib/nlattr.c' line='777' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='nla_put' mangled-name='nla_put' filepath='include/net/netlink.h' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='nla_put' mangled-name='nla_put' filepath='lib/nlattr.c' line='1035' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='lib/nlattr.c' line='1035' column='1'/>
+        <parameter type-id='95e97e5e' name='attrtype' filepath='lib/nlattr.c' line='1035' column='1'/>
+        <parameter type-id='95e97e5e' name='attrlen' filepath='lib/nlattr.c' line='1035' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='lib/nlattr.c' line='1035' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='nla_put_64bit' mangled-name='nla_put_64bit' filepath='lib/nlattr.c' line='1056' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_put_64bit'>
@@ -121695,16 +117076,16 @@
         <parameter type-id='eaa32e2f' name='data' filepath='lib/nlattr.c' line='1082' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='nla_reserve' mangled-name='nla_reserve' filepath='include/net/netlink.h' line='518' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_reserve'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='nla_reserve' mangled-name='nla_reserve' filepath='lib/nlattr.c' line='908' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_reserve'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='lib/nlattr.c' line='908' column='1'/>
+        <parameter type-id='95e97e5e' name='attrtype' filepath='lib/nlattr.c' line='908' column='1'/>
+        <parameter type-id='95e97e5e' name='attrlen' filepath='lib/nlattr.c' line='908' column='1'/>
         <return type-id='6fcaf91e'/>
       </function-decl>
-      <function-decl name='nla_strlcpy' mangled-name='nla_strlcpy' filepath='include/net/netlink.h' line='509' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_strlcpy'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='0f2a7ce5'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='nla_strlcpy' mangled-name='nla_strlcpy' filepath='lib/nlattr.c' line='723' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_strlcpy'>
+        <parameter type-id='26a90f95' name='dst' filepath='lib/nlattr.c' line='723' column='1'/>
+        <parameter type-id='0f2a7ce5' name='nla' filepath='lib/nlattr.c' line='723' column='1'/>
+        <parameter type-id='b59d7dce' name='dstsize' filepath='lib/nlattr.c' line='723' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
       <function-decl name='no_llseek' mangled-name='no_llseek' filepath='fs/read_write.c' line='230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='no_llseek'>
@@ -121737,8 +117118,8 @@
         <parameter type-id='95e97e5e' name='cap' filepath='kernel/capability.c' line='394' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='ns_to_timespec64' mangled-name='ns_to_timespec64' filepath='include/linux/time64.h' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ns_to_timespec64'>
-        <parameter type-id='d238557f'/>
+      <function-decl name='ns_to_timespec64' mangled-name='ns_to_timespec64' filepath='kernel/time/time.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ns_to_timespec64'>
+        <parameter type-id='d238557f' name='nsec' filepath='kernel/time/time.c' line='506' column='1'/>
         <return type-id='40a816ad'/>
       </function-decl>
       <function-decl name='nsec_to_clock_t' mangled-name='nsec_to_clock_t' filepath='kernel/time/time.c' line='674' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nsec_to_clock_t'>
@@ -121763,47 +117144,47 @@
         <parameter type-id='22ab35e2' name='ndr_desc' filepath='drivers/nvdimm/region_devs.c' line='1151' column='1'/>
         <return type-id='14dc741a'/>
       </function-decl>
-      <function-decl name='nvmem_cell_get' mangled-name='nvmem_cell_get' filepath='include/linux/nvmem-consumer.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='nvmem_cell_get' mangled-name='nvmem_cell_get' filepath='drivers/nvmem/core.c' line='1111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/nvmem/core.c' line='1111' column='1'/>
+        <parameter type-id='80f4b756' name='id' filepath='drivers/nvmem/core.c' line='1111' column='1'/>
         <return type-id='4a4ce85f'/>
       </function-decl>
-      <function-decl name='nvmem_cell_put' mangled-name='nvmem_cell_put' filepath='include/linux/nvmem-consumer.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_put'>
-        <parameter type-id='4a4ce85f'/>
+      <function-decl name='nvmem_cell_put' mangled-name='nvmem_cell_put' filepath='drivers/nvmem/core.c' line='1197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_put'>
+        <parameter type-id='4a4ce85f' name='cell' filepath='drivers/nvmem/core.c' line='1197' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='nvmem_cell_read' mangled-name='nvmem_cell_read' filepath='include/linux/nvmem-consumer.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_read'>
-        <parameter type-id='4a4ce85f'/>
-        <parameter type-id='78c01427'/>
+      <function-decl name='nvmem_cell_read' mangled-name='nvmem_cell_read' filepath='drivers/nvmem/core.c' line='1269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_cell_read'>
+        <parameter type-id='4a4ce85f' name='cell' filepath='drivers/nvmem/core.c' line='1269' column='1'/>
+        <parameter type-id='78c01427' name='len' filepath='drivers/nvmem/core.c' line='1269' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='nvmem_device_put' mangled-name='nvmem_device_put' filepath='drivers/nvmem/core.c' line='957' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_put'>
         <parameter type-id='8179bc49' name='nvmem' filepath='drivers/nvmem/core.c' line='957' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='nvmem_device_read' mangled-name='nvmem_device_read' filepath='include/linux/nvmem-consumer.h' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_read'>
-        <parameter type-id='8179bc49'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='nvmem_device_read' mangled-name='nvmem_device_read' filepath='drivers/nvmem/core.c' line='1539' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_read'>
+        <parameter type-id='8179bc49' name='nvmem' filepath='drivers/nvmem/core.c' line='1539' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/nvmem/core.c' line='1540' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='drivers/nvmem/core.c' line='1541' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='drivers/nvmem/core.c' line='1541' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='nvmem_device_write' mangled-name='nvmem_device_write' filepath='include/linux/nvmem-consumer.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_write'>
-        <parameter type-id='8179bc49'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='nvmem_device_write' mangled-name='nvmem_device_write' filepath='drivers/nvmem/core.c' line='1567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nvmem_device_write'>
+        <parameter type-id='8179bc49' name='nvmem' filepath='drivers/nvmem/core.c' line='1567' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/nvmem/core.c' line='1568' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='drivers/nvmem/core.c' line='1569' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='drivers/nvmem/core.c' line='1569' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_address_to_resource' mangled-name='of_address_to_resource' filepath='include/linux/of_address.h' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_address_to_resource'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='c9d64c0d'/>
+      <function-decl name='of_address_to_resource' mangled-name='of_address_to_resource' filepath='drivers/of/address.c' line='866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_address_to_resource'>
+        <parameter type-id='9a537bbe' name='dev' filepath='drivers/of/address.c' line='866' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/address.c' line='866' column='1'/>
+        <parameter type-id='c9d64c0d' name='r' filepath='drivers/of/address.c' line='867' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_alias_get_id' mangled-name='of_alias_get_id' filepath='include/linux/of.h' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_alias_get_id'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_alias_get_id' mangled-name='of_alias_get_id' filepath='drivers/of/base.c' line='2032' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_alias_get_id'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/base.c' line='2032' column='1'/>
+        <parameter type-id='80f4b756' name='stem' filepath='drivers/of/base.c' line='2032' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_clk_add_hw_provider' mangled-name='of_clk_add_hw_provider' filepath='drivers/clk/clk.c' line='4647' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_add_hw_provider'>
@@ -121822,14 +117203,14 @@
         <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk.c' line='4749' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='of_clk_get' mangled-name='of_clk_get' filepath='include/linux/clk.h' line='987' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_clk_get' mangled-name='of_clk_get' filepath='drivers/clk/clk.c' line='4949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk.c' line='4949' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/clk/clk.c' line='4949' column='1'/>
         <return type-id='7d0bc0eb'/>
       </function-decl>
-      <function-decl name='of_clk_get_by_name' mangled-name='of_clk_get_by_name' filepath='include/linux/clk.h' line='988' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get_by_name'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_clk_get_by_name' mangled-name='of_clk_get_by_name' filepath='drivers/clk/clk.c' line='4964' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get_by_name'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/clk/clk.c' line='4964' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/clk/clk.c' line='4964' column='1'/>
         <return type-id='7d0bc0eb'/>
       </function-decl>
       <function-decl name='of_clk_get_parent_name' mangled-name='of_clk_get_parent_name' filepath='drivers/clk/clk.c' line='4991' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_get_parent_name'>
@@ -121847,9 +117228,9 @@
         <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4562' column='1'/>
         <return type-id='3aaeef89'/>
       </function-decl>
-      <function-decl name='of_clk_set_defaults' mangled-name='of_clk_set_defaults' filepath='include/linux/clk/clk-conf.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_set_defaults'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='of_clk_set_defaults' mangled-name='of_clk_set_defaults' filepath='drivers/clk/clk-conf.c' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_set_defaults'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/clk/clk-conf.c' line='131' column='1'/>
+        <parameter type-id='b50a4934' name='clk_supplier' filepath='drivers/clk/clk-conf.c' line='131' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_clk_src_onecell_get' mangled-name='of_clk_src_onecell_get' filepath='drivers/clk/clk.c' line='4568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_clk_src_onecell_get'>
@@ -121862,14 +117243,14 @@
         <parameter type-id='eaa32e2f' name='data' filepath='drivers/clk/clk.c' line='4556' column='1'/>
         <return type-id='7d0bc0eb'/>
       </function-decl>
-      <function-decl name='of_count_phandle_with_args' mangled-name='of_count_phandle_with_args' filepath='include/linux/of.h' line='378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_count_phandle_with_args'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_count_phandle_with_args' mangled-name='of_count_phandle_with_args' filepath='drivers/of/base.c' line='1743' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_count_phandle_with_args'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='1743' column='1'/>
+        <parameter type-id='80f4b756' name='list_name' filepath='drivers/of/base.c' line='1743' column='1'/>
+        <parameter type-id='80f4b756' name='cells_name' filepath='drivers/of/base.c' line='1744' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_cpu_node_to_id' mangled-name='of_cpu_node_to_id' filepath='include/linux/of.h' line='555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_cpu_node_to_id'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_cpu_node_to_id' mangled-name='of_cpu_node_to_id' filepath='drivers/of/base.c' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_cpu_node_to_id'>
+        <parameter type-id='9a537bbe' name='cpu_node' filepath='drivers/of/base.c' line='400' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_devfreq_cooling_register_power' mangled-name='of_devfreq_cooling_register_power' filepath='drivers/thermal/devfreq_cooling.c' line='460' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_devfreq_cooling_register_power'>
@@ -121878,12 +117259,12 @@
         <parameter type-id='0b660ebe' name='dfc_power' filepath='drivers/thermal/devfreq_cooling.c' line='461' column='1'/>
         <return type-id='2feec21f'/>
       </function-decl>
-      <function-decl name='of_device_get_match_data' mangled-name='of_device_get_match_data' filepath='include/linux/of_device.h' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_get_match_data'>
-        <parameter type-id='8df61054'/>
+      <function-decl name='of_device_get_match_data' mangled-name='of_device_get_match_data' filepath='drivers/of/device.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_get_match_data'>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/of/device.c' line='250' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='of_device_is_available' mangled-name='of_device_is_available' filepath='include/linux/of.h' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_is_available'>
-        <parameter type-id='0afa6ea3'/>
+      <function-decl name='of_device_is_available' mangled-name='of_device_is_available' filepath='drivers/of/base.c' line='617' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_is_available'>
+        <parameter type-id='0afa6ea3' name='device' filepath='drivers/of/base.c' line='617' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='of_device_is_compatible' mangled-name='of_device_is_compatible' filepath='drivers/of/base.c' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_is_compatible'>
@@ -121891,26 +117272,26 @@
         <parameter type-id='80f4b756' name='compat' filepath='drivers/of/base.c' line='526' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_device_modalias' mangled-name='of_device_modalias' filepath='include/linux/of_device.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_modalias'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='79a0948f'/>
+      <function-decl name='of_device_modalias' mangled-name='of_device_modalias' filepath='drivers/of/device.c' line='327' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_modalias'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/device.c' line='327' column='1'/>
+        <parameter type-id='26a90f95' name='str' filepath='drivers/of/device.c' line='327' column='1'/>
+        <parameter type-id='79a0948f' name='len' filepath='drivers/of/device.c' line='327' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
       <function-decl name='of_device_request_module' mangled-name='of_device_request_module' filepath='drivers/of/device.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_request_module'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/device.c' line='301' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_device_uevent_modalias' mangled-name='of_device_uevent_modalias' filepath='include/linux/of_device.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_uevent_modalias'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='d9d65b21'/>
+      <function-decl name='of_device_uevent_modalias' mangled-name='of_device_uevent_modalias' filepath='drivers/of/device.c' line='381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_device_uevent_modalias'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/device.c' line='381' column='1'/>
+        <parameter type-id='d9d65b21' name='env' filepath='drivers/of/device.c' line='381' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_dma_configure_id' mangled-name='of_dma_configure_id' filepath='include/linux/of_device.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_configure_id'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='aded214c'/>
+      <function-decl name='of_dma_configure_id' mangled-name='of_dma_configure_id' filepath='drivers/of/device.c' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_configure_id'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/device.c' line='132' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/device.c' line='132' column='1'/>
+        <parameter type-id='b50a4934' name='force_dma' filepath='drivers/of/device.c' line='133' column='1'/>
+        <parameter type-id='aded214c' name='id' filepath='drivers/of/device.c' line='133' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_dma_controller_free' mangled-name='of_dma_controller_free' filepath='drivers/dma/of-dma.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_controller_free'>
@@ -121923,8 +117304,8 @@
         <parameter type-id='eaa32e2f' name='data' filepath='drivers/dma/of-dma.c' line='111' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_dma_is_coherent' mangled-name='of_dma_is_coherent' filepath='include/linux/of_address.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_is_coherent'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_dma_is_coherent' mangled-name='of_dma_is_coherent' filepath='drivers/of/address.c' line='1077' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_dma_is_coherent'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/address.c' line='1077' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='of_drm_find_bridge' mangled-name='of_drm_find_bridge' filepath='drivers/gpu/drm/drm_bridge.c' line='1209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_drm_find_bridge'>
@@ -121939,14 +117320,14 @@
         <parameter type-id='9a537bbe' name='node' filepath='drivers/video/backlight/backlight.c' line='665' column='1'/>
         <return type-id='7a76d041'/>
       </function-decl>
-      <function-decl name='of_find_compatible_node' mangled-name='of_find_compatible_node' filepath='include/linux/of.h' line='271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_compatible_node'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_find_compatible_node' mangled-name='of_find_compatible_node' filepath='drivers/of/base.c' line='1029' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_compatible_node'>
+        <parameter type-id='9a537bbe' name='from' filepath='drivers/of/base.c' line='1029' column='1'/>
+        <parameter type-id='80f4b756' name='type' filepath='drivers/of/base.c' line='1030' column='1'/>
+        <parameter type-id='80f4b756' name='compatible' filepath='drivers/of/base.c' line='1030' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_find_device_by_node' mangled-name='of_find_device_by_node' filepath='include/linux/of_platform.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_device_by_node'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_find_device_by_node' mangled-name='of_find_device_by_node' filepath='drivers/of/platform.c' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_device_by_node'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/platform.c' line='49' column='1'/>
         <return type-id='db362995'/>
       </function-decl>
       <function-decl name='of_find_i2c_adapter_by_node' mangled-name='of_find_i2c_adapter_by_node' filepath='drivers/i2c/i2c-core-of.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_i2c_adapter_by_node'>
@@ -121957,44 +117338,44 @@
         <parameter type-id='9a537bbe' name='node' filepath='drivers/i2c/i2c-core-of.c' line='131' column='1'/>
         <return type-id='3e31633b'/>
       </function-decl>
-      <function-decl name='of_find_matching_node_and_match' mangled-name='of_find_matching_node_and_match' filepath='include/linux/of.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_matching_node_and_match'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='e5ce629e'/>
-        <parameter type-id='77e5615c'/>
+      <function-decl name='of_find_matching_node_and_match' mangled-name='of_find_matching_node_and_match' filepath='drivers/of/base.c' line='1136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_matching_node_and_match'>
+        <parameter type-id='9a537bbe' name='from' filepath='drivers/of/base.c' line='1136' column='1'/>
+        <parameter type-id='e5ce629e' name='matches' filepath='drivers/of/base.c' line='1137' column='1'/>
+        <parameter type-id='77e5615c' name='match' filepath='drivers/of/base.c' line='1138' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
       <function-decl name='of_find_mipi_dsi_host_by_node' mangled-name='of_find_mipi_dsi_host_by_node' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_mipi_dsi_host_by_node'>
         <parameter type-id='9a537bbe' name='node' filepath='drivers/gpu/drm/drm_mipi_dsi.c' line='262' column='1'/>
         <return type-id='c149fe34'/>
       </function-decl>
-      <function-decl name='of_find_node_by_name' mangled-name='of_find_node_by_name' filepath='include/linux/of.h' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_name'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_find_node_by_name' mangled-name='of_find_node_by_name' filepath='drivers/of/base.c' line='971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_name'>
+        <parameter type-id='9a537bbe' name='from' filepath='drivers/of/base.c' line='971' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/of/base.c' line='972' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_find_node_by_phandle' mangled-name='of_find_node_by_phandle' filepath='include/linux/of.h' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_phandle'>
-        <parameter type-id='6e394fba'/>
+      <function-decl name='of_find_node_by_phandle' mangled-name='of_find_node_by_phandle' filepath='drivers/of/base.c' line='1196' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_phandle'>
+        <parameter type-id='6e394fba' name='handle' filepath='drivers/of/base.c' line='1196' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_find_node_by_type' mangled-name='of_find_node_by_type' filepath='include/linux/of.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_type'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_find_node_by_type' mangled-name='of_find_node_by_type' filepath='drivers/of/base.c' line='999' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_by_type'>
+        <parameter type-id='9a537bbe' name='from' filepath='drivers/of/base.c' line='999' column='1'/>
+        <parameter type-id='80f4b756' name='type' filepath='drivers/of/base.c' line='1000' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_find_node_opts_by_path' mangled-name='of_find_node_opts_by_path' filepath='include/linux/of.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_opts_by_path'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7d3cd834'/>
+      <function-decl name='of_find_node_opts_by_path' mangled-name='of_find_node_opts_by_path' filepath='drivers/of/base.c' line='913' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_opts_by_path'>
+        <parameter type-id='80f4b756' name='path' filepath='drivers/of/base.c' line='913' column='1'/>
+        <parameter type-id='7d3cd834' name='opts' filepath='drivers/of/base.c' line='913' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_find_node_with_property' mangled-name='of_find_node_with_property' filepath='include/linux/of.h' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_with_property'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_find_node_with_property' mangled-name='of_find_node_with_property' filepath='drivers/of/base.c' line='1058' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_node_with_property'>
+        <parameter type-id='9a537bbe' name='from' filepath='drivers/of/base.c' line='1058' column='1'/>
+        <parameter type-id='80f4b756' name='prop_name' filepath='drivers/of/base.c' line='1059' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_find_property' mangled-name='of_find_property' filepath='include/linux/of.h' line='304' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_property'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='of_find_property' mangled-name='of_find_property' filepath='drivers/of/base.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_find_property'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='210' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/of/base.c' line='211' column='1'/>
+        <parameter type-id='7292109c' name='lenp' filepath='drivers/of/base.c' line='212' column='1'/>
         <return type-id='ddcd89c6'/>
       </function-decl>
       <var-decl name='of_fwnode_ops' type-id='2eb8da02' mangled-name='of_fwnode_ops' visibility='default' filepath='drivers/of/property.c' line='1418' column='1' elf-symbol-id='of_fwnode_ops'/>
@@ -122012,9 +117393,9 @@
         <parameter type-id='9a537bbe' name='np' filepath='drivers/base/power/domain.c' line='2361' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='of_get_child_by_name' mangled-name='of_get_child_by_name' filepath='include/linux/of.h' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_child_by_name'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_get_child_by_name' mangled-name='of_get_child_by_name' filepath='drivers/of/base.c' line='847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_child_by_name'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/base.c' line='847' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/of/base.c' line='848' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
       <function-decl name='of_get_compatible_child' mangled-name='of_get_compatible_child' filepath='drivers/of/base.c' line='822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_compatible_child'>
@@ -122022,9 +117403,9 @@
         <parameter type-id='80f4b756' name='compatible' filepath='drivers/of/base.c' line='823' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_get_cpu_node' mangled-name='of_get_cpu_node' filepath='include/linux/of.h' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_cpu_node'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='807869d3'/>
+      <function-decl name='of_get_cpu_node' mangled-name='of_get_cpu_node' filepath='drivers/of/base.c' line='380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_cpu_node'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='drivers/of/base.c' line='380' column='1'/>
+        <parameter type-id='807869d3' name='thread' filepath='drivers/of/base.c' line='380' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
       <function-decl name='of_get_dma_window' mangled-name='of_get_dma_window' filepath='drivers/iommu/of_iommu.c' line='36' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_dma_window'>
@@ -122043,28 +117424,28 @@
         <parameter type-id='38fe9344' name='flags' filepath='drivers/gpio/gpiolib-of.c' line='279' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_get_next_available_child' mangled-name='of_get_next_available_child' filepath='include/linux/of.h' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_available_child'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_get_next_available_child' mangled-name='of_get_next_available_child' filepath='drivers/of/base.c' line='751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_available_child'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/base.c' line='751' column='1'/>
+        <parameter type-id='9a537bbe' name='prev' filepath='drivers/of/base.c' line='752' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_get_next_child' mangled-name='of_get_next_child' filepath='include/linux/of.h' line='288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_child'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_get_next_child' mangled-name='of_get_next_child' filepath='drivers/of/base.c' line='730' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_child'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/base.c' line='730' column='1'/>
+        <parameter type-id='9a537bbe' name='prev' filepath='drivers/of/base.c' line='731' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_get_next_parent' mangled-name='of_get_next_parent' filepath='include/linux/of.h' line='287' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_parent'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_get_next_parent' mangled-name='of_get_next_parent' filepath='drivers/of/base.c' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_next_parent'>
+        <parameter type-id='9a537bbe' name='node' filepath='drivers/of/base.c' line='686' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_get_parent' mangled-name='of_get_parent' filepath='include/linux/of.h' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_parent'>
-        <parameter type-id='0afa6ea3'/>
+      <function-decl name='of_get_parent' mangled-name='of_get_parent' filepath='drivers/of/base.c' line='660' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_parent'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/base.c' line='660' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_get_property' mangled-name='of_get_property' filepath='include/linux/of.h' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_property'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='of_get_property' mangled-name='of_get_property' filepath='drivers/of/base.c' line='280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_property'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='280' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/of/base.c' line='280' column='1'/>
+        <parameter type-id='7292109c' name='lenp' filepath='drivers/of/base.c' line='281' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='of_get_regulator_init_data' mangled-name='of_get_regulator_init_data' filepath='drivers/regulator/of_regulator.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_get_regulator_init_data'>
@@ -122079,9 +117460,9 @@
         <parameter type-id='95e97e5e' name='reg' filepath='drivers/of/property.c' line='690' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_graph_get_next_endpoint' mangled-name='of_graph_get_next_endpoint' filepath='include/linux/of_graph.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_next_endpoint'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_graph_get_next_endpoint' mangled-name='of_graph_get_next_endpoint' filepath='drivers/of/property.c' line='620' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_next_endpoint'>
+        <parameter type-id='0afa6ea3' name='parent' filepath='drivers/of/property.c' line='620' column='1'/>
+        <parameter type-id='9a537bbe' name='prev' filepath='drivers/of/property.c' line='621' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
       <function-decl name='of_graph_get_port_parent' mangled-name='of_graph_get_port_parent' filepath='drivers/of/property.c' line='727' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_port_parent'>
@@ -122092,33 +117473,33 @@
         <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/property.c' line='713' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_graph_get_remote_node' mangled-name='of_graph_get_remote_node' filepath='include/linux/of_graph.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_node'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='of_graph_get_remote_node' mangled-name='of_graph_get_remote_node' filepath='drivers/of/property.c' line='813' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_node'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/property.c' line='813' column='1'/>
+        <parameter type-id='19c2251e' name='port' filepath='drivers/of/property.c' line='814' column='1'/>
+        <parameter type-id='19c2251e' name='endpoint' filepath='drivers/of/property.c' line='814' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_graph_get_remote_port_parent' mangled-name='of_graph_get_remote_port_parent' filepath='include/linux/of_graph.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_port_parent'>
-        <parameter type-id='0afa6ea3'/>
+      <function-decl name='of_graph_get_remote_port_parent' mangled-name='of_graph_get_remote_port_parent' filepath='drivers/of/property.c' line='757' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_get_remote_port_parent'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/property.c' line='758' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_graph_is_present' mangled-name='of_graph_is_present' filepath='include/linux/of_graph.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_is_present'>
-        <parameter type-id='0afa6ea3'/>
+      <function-decl name='of_graph_is_present' mangled-name='of_graph_is_present' filepath='drivers/of/property.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_is_present'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/property.c' line='40' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='of_graph_parse_endpoint' mangled-name='of_graph_parse_endpoint' filepath='include/linux/of_graph.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_parse_endpoint'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='a5eb3c12'/>
+      <function-decl name='of_graph_parse_endpoint' mangled-name='of_graph_parse_endpoint' filepath='drivers/of/property.c' line='556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_graph_parse_endpoint'>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/property.c' line='556' column='1'/>
+        <parameter type-id='a5eb3c12' name='endpoint' filepath='drivers/of/property.c' line='557' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_hwspin_lock_get_id' mangled-name='of_hwspin_lock_get_id' filepath='include/linux/hwspinlock.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_hwspin_lock_get_id'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_hwspin_lock_get_id' mangled-name='of_hwspin_lock_get_id' filepath='drivers/hwspinlock/hwspinlock_core.c' line='339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_hwspin_lock_get_id'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/hwspinlock/hwspinlock_core.c' line='339' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/hwspinlock/hwspinlock_core.c' line='339' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_icc_get' mangled-name='of_icc_get' filepath='include/linux/interconnect.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_icc_get'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_icc_get' mangled-name='of_icc_get' filepath='drivers/interconnect/core.c' line='533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_icc_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/interconnect/core.c' line='533' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/interconnect/core.c' line='533' column='1'/>
         <return type-id='b5fdec5e'/>
       </function-decl>
       <function-decl name='of_icc_xlate_onecell' mangled-name='of_icc_xlate_onecell' filepath='drivers/interconnect/core.c' line='331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_icc_xlate_onecell'>
@@ -122126,56 +117507,56 @@
         <parameter type-id='eaa32e2f' name='data' filepath='drivers/interconnect/core.c' line='332' column='1'/>
         <return type-id='18d76f87'/>
       </function-decl>
-      <function-decl name='of_iomap' mangled-name='of_iomap' filepath='include/linux/of_address.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_iomap'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_iomap' mangled-name='of_iomap' filepath='drivers/of/address.c' line='892' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_iomap'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/address.c' line='892' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/address.c' line='892' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='of_irq_find_parent' mangled-name='of_irq_find_parent' filepath='include/linux/of_irq.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_find_parent'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_irq_find_parent' mangled-name='of_irq_find_parent' filepath='drivers/of/irq.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_find_parent'>
+        <parameter type-id='9a537bbe' name='child' filepath='drivers/of/irq.c' line='54' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_irq_get' mangled-name='of_irq_get' filepath='include/linux/of_irq.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_get'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_irq_get' mangled-name='of_irq_get' filepath='drivers/of/irq.c' line='387' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_get'>
+        <parameter type-id='9a537bbe' name='dev' filepath='drivers/of/irq.c' line='387' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/irq.c' line='387' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_irq_get_byname' mangled-name='of_irq_get_byname' filepath='include/linux/of_irq.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_get_byname'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_irq_get_byname' mangled-name='of_irq_get_byname' filepath='drivers/of/irq.c' line='414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_get_byname'>
+        <parameter type-id='9a537bbe' name='dev' filepath='drivers/of/irq.c' line='414' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/of/irq.c' line='414' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_irq_parse_one' mangled-name='of_irq_parse_one' filepath='include/linux/of_irq.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_parse_one'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='51a94113'/>
+      <function-decl name='of_irq_parse_one' mangled-name='of_irq_parse_one' filepath='drivers/of/irq.c' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_irq_parse_one'>
+        <parameter type-id='9a537bbe' name='device' filepath='drivers/of/irq.c' line='286' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/irq.c' line='286' column='1'/>
+        <parameter type-id='51a94113' name='out_irq' filepath='drivers/of/irq.c' line='286' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_machine_is_compatible' mangled-name='of_machine_is_compatible' filepath='include/linux/of.h' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_machine_is_compatible'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_machine_is_compatible' mangled-name='of_machine_is_compatible' filepath='drivers/of/base.c' line='567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_machine_is_compatible'>
+        <parameter type-id='80f4b756' name='compat' filepath='drivers/of/base.c' line='567' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_match_device' mangled-name='of_match_device' filepath='include/linux/of_device.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_match_device'>
-        <parameter type-id='e5ce629e'/>
-        <parameter type-id='8df61054'/>
+      <function-decl name='of_match_device' mangled-name='of_match_device' filepath='drivers/of/device.c' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_match_device'>
+        <parameter type-id='e5ce629e' name='matches' filepath='drivers/of/device.c' line='28' column='1'/>
+        <parameter type-id='8df61054' name='dev' filepath='drivers/of/device.c' line='29' column='1'/>
         <return type-id='e5ce629e'/>
       </function-decl>
-      <function-decl name='of_match_node' mangled-name='of_match_node' filepath='include/linux/of.h' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_match_node'>
-        <parameter type-id='e5ce629e'/>
-        <parameter type-id='0afa6ea3'/>
+      <function-decl name='of_match_node' mangled-name='of_match_node' filepath='drivers/of/base.c' line='1110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_match_node'>
+        <parameter type-id='e5ce629e' name='matches' filepath='drivers/of/base.c' line='1110' column='1'/>
+        <parameter type-id='0afa6ea3' name='node' filepath='drivers/of/base.c' line='1111' column='1'/>
         <return type-id='e5ce629e'/>
       </function-decl>
-      <function-decl name='of_n_addr_cells' mangled-name='of_n_addr_cells' filepath='include/linux/of.h' line='360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_n_addr_cells'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_n_addr_cells' mangled-name='of_n_addr_cells' filepath='drivers/of/base.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_n_addr_cells'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/base.c' line='101' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_n_size_cells' mangled-name='of_n_size_cells' filepath='include/linux/of.h' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_n_size_cells'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_n_size_cells' mangled-name='of_n_size_cells' filepath='drivers/of/base.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_n_size_cells'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/base.c' line='122' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_node_name_eq' mangled-name='of_node_name_eq' filepath='include/linux/of.h' line='256' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_node_name_eq'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_node_name_eq' mangled-name='of_node_name_eq' filepath='drivers/of/base.c' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_node_name_eq'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='58' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/of/base.c' line='58' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='of_nvmem_device_get' mangled-name='of_nvmem_device_get' filepath='drivers/nvmem/core.c' line='857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_nvmem_device_get'>
@@ -122183,38 +117564,38 @@
         <parameter type-id='80f4b756' name='id' filepath='drivers/nvmem/core.c' line='857' column='1'/>
         <return type-id='8179bc49'/>
       </function-decl>
-      <function-decl name='of_parse_phandle' mangled-name='of_parse_phandle' filepath='include/linux/of.h' line='366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_parse_phandle' mangled-name='of_parse_phandle' filepath='drivers/of/base.c' line='1437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='1437' column='1'/>
+        <parameter type-id='80f4b756' name='phandle_name' filepath='drivers/of/base.c' line='1438' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/base.c' line='1438' column='1'/>
         <return type-id='9a537bbe'/>
       </function-decl>
-      <function-decl name='of_parse_phandle_with_args' mangled-name='of_parse_phandle_with_args' filepath='include/linux/of.h' line='369' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_args'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='51a94113'/>
+      <function-decl name='of_parse_phandle_with_args' mangled-name='of_parse_phandle_with_args' filepath='drivers/of/base.c' line='1485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_args'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='1485' column='1'/>
+        <parameter type-id='80f4b756' name='list_name' filepath='drivers/of/base.c' line='1485' column='1'/>
+        <parameter type-id='80f4b756' name='cells_name' filepath='drivers/of/base.c' line='1486' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/base.c' line='1486' column='1'/>
+        <parameter type-id='51a94113' name='out_args' filepath='drivers/of/base.c' line='1487' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_parse_phandle_with_fixed_args' mangled-name='of_parse_phandle_with_fixed_args' filepath='include/linux/of.h' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_fixed_args'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='51a94113'/>
+      <function-decl name='of_parse_phandle_with_fixed_args' mangled-name='of_parse_phandle_with_fixed_args' filepath='drivers/of/base.c' line='1717' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_parse_phandle_with_fixed_args'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='1717' column='1'/>
+        <parameter type-id='80f4b756' name='list_name' filepath='drivers/of/base.c' line='1718' column='1'/>
+        <parameter type-id='95e97e5e' name='cell_count' filepath='drivers/of/base.c' line='1718' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/of/base.c' line='1719' column='1'/>
+        <parameter type-id='51a94113' name='out_args' filepath='drivers/of/base.c' line='1719' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_phandle_iterator_init' mangled-name='of_phandle_iterator_init' filepath='include/linux/of.h' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phandle_iterator_init'>
-        <parameter type-id='58cfaa0e'/>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_phandle_iterator_init' mangled-name='of_phandle_iterator_init' filepath='drivers/of/base.c' line='1240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phandle_iterator_init'>
+        <parameter type-id='58cfaa0e' name='it' filepath='drivers/of/base.c' line='1240' column='1'/>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/base.c' line='1241' column='1'/>
+        <parameter type-id='80f4b756' name='list_name' filepath='drivers/of/base.c' line='1242' column='1'/>
+        <parameter type-id='80f4b756' name='cells_name' filepath='drivers/of/base.c' line='1243' column='1'/>
+        <parameter type-id='95e97e5e' name='cell_count' filepath='drivers/of/base.c' line='1244' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_phandle_iterator_next' mangled-name='of_phandle_iterator_next' filepath='include/linux/of.h' line='388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phandle_iterator_next'>
-        <parameter type-id='58cfaa0e'/>
+      <function-decl name='of_phandle_iterator_next' mangled-name='of_phandle_iterator_next' filepath='drivers/of/base.c' line='1273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phandle_iterator_next'>
+        <parameter type-id='58cfaa0e' name='it' filepath='drivers/of/base.c' line='1273' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_phy_simple_xlate' mangled-name='of_phy_simple_xlate' filepath='drivers/phy/phy-core.c' line='633' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_phy_simple_xlate'>
@@ -122222,65 +117603,65 @@
         <parameter type-id='51a94113' name='args' filepath='drivers/phy/phy-core.c' line='634' column='1'/>
         <return type-id='503ff1ba'/>
       </function-decl>
-      <function-decl name='of_platform_depopulate' mangled-name='of_platform_depopulate' filepath='include/linux/of_platform.h' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_platform_depopulate'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='of_platform_depopulate' mangled-name='of_platform_depopulate' filepath='drivers/of/platform.c' line='589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_platform_depopulate'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/of/platform.c' line='589' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='of_platform_populate' mangled-name='of_platform_populate' filepath='include/linux/of_platform.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_platform_populate'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='e5ce629e'/>
-        <parameter type-id='fcc1e09e'/>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='of_platform_populate' mangled-name='of_platform_populate' filepath='drivers/of/platform.c' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_platform_populate'>
+        <parameter type-id='9a537bbe' name='root' filepath='drivers/of/platform.c' line='468' column='1'/>
+        <parameter type-id='e5ce629e' name='matches' filepath='drivers/of/platform.c' line='469' column='1'/>
+        <parameter type-id='fcc1e09e' name='lookup' filepath='drivers/of/platform.c' line='470' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/of/platform.c' line='471' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_prop_next_string' mangled-name='of_prop_next_string' filepath='include/linux/of.h' line='551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_prop_next_string'>
-        <parameter type-id='ddcd89c6'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_prop_next_string' mangled-name='of_prop_next_string' filepath='drivers/of/property.c' line='531' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_prop_next_string'>
+        <parameter type-id='ddcd89c6' name='prop' filepath='drivers/of/property.c' line='531' column='1'/>
+        <parameter type-id='80f4b756' name='cur' filepath='drivers/of/property.c' line='531' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='of_prop_next_u32' mangled-name='of_prop_next_u32' filepath='include/linux/of.h' line='542' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_prop_next_u32'>
-        <parameter type-id='ddcd89c6'/>
-        <parameter type-id='90144368'/>
-        <parameter type-id='f9409001'/>
+      <function-decl name='of_prop_next_u32' mangled-name='of_prop_next_u32' filepath='drivers/of/property.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_prop_next_u32'>
+        <parameter type-id='ddcd89c6' name='prop' filepath='drivers/of/property.c' line='508' column='1'/>
+        <parameter type-id='90144368' name='cur' filepath='drivers/of/property.c' line='508' column='1'/>
+        <parameter type-id='f9409001' name='pu' filepath='drivers/of/property.c' line='509' column='1'/>
         <return type-id='90144368'/>
       </function-decl>
-      <function-decl name='of_property_count_elems_of_size' mangled-name='of_property_count_elems_of_size' filepath='include/linux/of.h' line='307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_count_elems_of_size'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_property_count_elems_of_size' mangled-name='of_property_count_elems_of_size' filepath='drivers/of/property.c' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_count_elems_of_size'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='68' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='69' column='1'/>
+        <parameter type-id='95e97e5e' name='elem_size' filepath='drivers/of/property.c' line='69' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_match_string' mangled-name='of_property_match_string' filepath='include/linux/of.h' line='337' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_match_string'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='of_property_match_string' mangled-name='of_property_match_string' filepath='drivers/of/property.c' line='442' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_match_string'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='442' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='442' column='1'/>
+        <parameter type-id='80f4b756' name='string' filepath='drivers/of/property.c' line='443' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_read_string' mangled-name='of_property_read_string' filepath='include/linux/of.h' line='334' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_string'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7d3cd834'/>
+      <function-decl name='of_property_read_string' mangled-name='of_property_read_string' filepath='drivers/of/property.c' line='418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_string'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='418' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='418' column='1'/>
+        <parameter type-id='7d3cd834' name='out_string' filepath='drivers/of/property.c' line='419' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_read_string_helper' mangled-name='of_property_read_string_helper' filepath='include/linux/of.h' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_string_helper'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7d3cd834'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_property_read_string_helper' mangled-name='of_property_read_string_helper' filepath='drivers/of/property.c' line='481' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_string_helper'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='481' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='482' column='1'/>
+        <parameter type-id='7d3cd834' name='out_strs' filepath='drivers/of/property.c' line='482' column='1'/>
+        <parameter type-id='b59d7dce' name='sz' filepath='drivers/of/property.c' line='483' column='1'/>
+        <parameter type-id='95e97e5e' name='skip' filepath='drivers/of/property.c' line='483' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_read_u32_index' mangled-name='of_property_read_u32_index' filepath='include/linux/of.h' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u32_index'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='19c2251e'/>
-        <parameter type-id='f9409001'/>
+      <function-decl name='of_property_read_u32_index' mangled-name='of_property_read_u32_index' filepath='drivers/of/property.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u32_index'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='138' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='139' column='1'/>
+        <parameter type-id='19c2251e' name='index' filepath='drivers/of/property.c' line='140' column='1'/>
+        <parameter type-id='f9409001' name='out_value' filepath='drivers/of/property.c' line='140' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_read_u64' mangled-name='of_property_read_u64' filepath='include/linux/of.h' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u64'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='3df9fd28'/>
+      <function-decl name='of_property_read_u64' mangled-name='of_property_read_u64' filepath='drivers/of/property.c' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u64'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='340' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='340' column='1'/>
+        <parameter type-id='3df9fd28' name='out_value' filepath='drivers/of/property.c' line='341' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_property_read_u64_index' mangled-name='of_property_read_u64_index' filepath='drivers/of/property.c' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_u64_index'>
@@ -122298,12 +117679,12 @@
         <parameter type-id='b59d7dce' name='sz_max' filepath='drivers/of/property.c' line='258' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_read_variable_u32_array' mangled-name='of_property_read_variable_u32_array' filepath='include/linux/of.h' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u32_array'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f9409001'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='of_property_read_variable_u32_array' mangled-name='of_property_read_variable_u32_array' filepath='drivers/of/property.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u32_array'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='301' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='302' column='1'/>
+        <parameter type-id='f9409001' name='out_values' filepath='drivers/of/property.c' line='302' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_min' filepath='drivers/of/property.c' line='303' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_max' filepath='drivers/of/property.c' line='303' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_property_read_variable_u64_array' mangled-name='of_property_read_variable_u64_array' filepath='drivers/of/property.c' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u64_array'>
@@ -122314,12 +117695,12 @@
         <parameter type-id='b59d7dce' name='sz_max' filepath='drivers/of/property.c' line='377' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='of_property_read_variable_u8_array' mangled-name='of_property_read_variable_u8_array' filepath='include/linux/of.h' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u8_array'>
-        <parameter type-id='0afa6ea3'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='8bff8096'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='of_property_read_variable_u8_array' mangled-name='of_property_read_variable_u8_array' filepath='drivers/of/property.c' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_property_read_variable_u8_array'>
+        <parameter type-id='0afa6ea3' name='np' filepath='drivers/of/property.c' line='208' column='1'/>
+        <parameter type-id='80f4b756' name='propname' filepath='drivers/of/property.c' line='209' column='1'/>
+        <parameter type-id='8bff8096' name='out_values' filepath='drivers/of/property.c' line='209' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_min' filepath='drivers/of/property.c' line='210' column='1'/>
+        <parameter type-id='b59d7dce' name='sz_max' filepath='drivers/of/property.c' line='210' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_pwm_xlate_with_flags' mangled-name='of_pwm_xlate_with_flags' filepath='drivers/pwm/core.c' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_pwm_xlate_with_flags'>
@@ -122327,18 +117708,18 @@
         <parameter type-id='af02a266' name='args' filepath='drivers/pwm/core.c' line='135' column='1'/>
         <return type-id='f06adae0'/>
       </function-decl>
-      <function-decl name='of_reserved_mem_device_init_by_idx' mangled-name='of_reserved_mem_device_init_by_idx' filepath='include/linux/of_reserved_mem.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_device_init_by_idx'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='of_reserved_mem_device_init_by_idx' mangled-name='of_reserved_mem_device_init_by_idx' filepath='drivers/of/of_reserved_mem.c' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_device_init_by_idx'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/of_reserved_mem.c' line='321' column='1'/>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/of_reserved_mem.c' line='322' column='1'/>
+        <parameter type-id='95e97e5e' name='idx' filepath='drivers/of/of_reserved_mem.c' line='322' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='of_reserved_mem_device_release' mangled-name='of_reserved_mem_device_release' filepath='drivers/of/of_reserved_mem.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_device_release'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/of/of_reserved_mem.c' line='395' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='of_reserved_mem_lookup' mangled-name='of_reserved_mem_lookup' filepath='include/linux/of_reserved_mem.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_lookup'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='of_reserved_mem_lookup' mangled-name='of_reserved_mem_lookup' filepath='drivers/of/of_reserved_mem.c' line='425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_reserved_mem_lookup'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/of/of_reserved_mem.c' line='425' column='1'/>
         <return type-id='f7f718cb'/>
       </function-decl>
       <var-decl name='of_root' type-id='9a537bbe' mangled-name='of_root' visibility='default' filepath='drivers/of/base.c' line='36' column='1' elf-symbol-id='of_root'/>
@@ -122355,9 +117736,9 @@
         <parameter type-id='95e97e5e' name='trip' filepath='drivers/thermal/thermal_of.c' line='140' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='of_translate_address' mangled-name='of_translate_address' filepath='include/linux/of_address.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_translate_address'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='90144368'/>
+      <function-decl name='of_translate_address' mangled-name='of_translate_address' filepath='drivers/of/address.c' line='613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_translate_address'>
+        <parameter type-id='9a537bbe' name='dev' filepath='drivers/of/address.c' line='613' column='1'/>
+        <parameter type-id='90144368' name='in_addr' filepath='drivers/of/address.c' line='613' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
       <function-decl name='of_usb_host_tpl_support' mangled-name='of_usb_host_tpl_support' filepath='drivers/usb/common/common.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='of_usb_host_tpl_support'>
@@ -122383,22 +117764,22 @@
         <parameter type-id='95e97e5e' name='err' filepath='mm/filemap.c' line='1516' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='page_frag_alloc' mangled-name='page_frag_alloc' filepath='mm/page_alloc.c' line='5277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_alloc'>
-        <parameter type-id='34e4f518' name='nc' filepath='mm/page_alloc.c' line='5277' column='1'/>
-        <parameter type-id='f0981eeb' name='fragsz' filepath='mm/page_alloc.c' line='5278' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5278' column='1'/>
+      <function-decl name='page_frag_alloc' mangled-name='page_frag_alloc' filepath='mm/page_alloc.c' line='5279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_alloc'>
+        <parameter type-id='34e4f518' name='nc' filepath='mm/page_alloc.c' line='5279' column='1'/>
+        <parameter type-id='f0981eeb' name='fragsz' filepath='mm/page_alloc.c' line='5280' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5280' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='page_frag_free' mangled-name='page_frag_free' filepath='mm/page_alloc.c' line='5339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_free'>
-        <parameter type-id='eaa32e2f' name='addr' filepath='mm/page_alloc.c' line='5339' column='1'/>
+      <function-decl name='page_frag_free' mangled-name='page_frag_free' filepath='mm/page_alloc.c' line='5341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_free'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/page_alloc.c' line='5341' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='page_mapping' mangled-name='page_mapping' filepath='include/linux/mm.h' line='1657' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_mapping'>
-        <parameter type-id='02f11ed4'/>
+      <function-decl name='page_mapping' mangled-name='page_mapping' filepath='mm/util.c' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_mapping'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/util.c' line='686' column='1'/>
         <return type-id='f57039f0'/>
       </function-decl>
-      <function-decl name='panic' mangled-name='panic' filepath='include/linux/kernel.h' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='panic'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='panic' mangled-name='panic' filepath='kernel/panic.c' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='panic'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/panic.c' line='177' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
@@ -122454,17 +117835,17 @@
         <parameter type-id='74bccedd' name='cpus' filepath='kernel/cpu.c' line='1193' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_alloc_irq_vectors_affinity' mangled-name='pci_alloc_irq_vectors_affinity' filepath='include/linux/pci.h' line='1501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_alloc_irq_vectors_affinity'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8a876638'/>
+      <function-decl name='pci_alloc_irq_vectors_affinity' mangled-name='pci_alloc_irq_vectors_affinity' filepath='drivers/pci/msi.c' line='1209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_alloc_irq_vectors_affinity'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='1209' column='1'/>
+        <parameter type-id='f0981eeb' name='min_vecs' filepath='drivers/pci/msi.c' line='1209' column='1'/>
+        <parameter type-id='f0981eeb' name='max_vecs' filepath='drivers/pci/msi.c' line='1210' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='drivers/pci/msi.c' line='1210' column='1'/>
+        <parameter type-id='8a876638' name='affd' filepath='drivers/pci/msi.c' line='1211' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_assign_resource' mangled-name='pci_assign_resource' filepath='include/linux/pci.h' line='1251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_assign_resource'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_assign_resource' mangled-name='pci_assign_resource' filepath='drivers/pci/setup-res.c' line='310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_assign_resource'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/setup-res.c' line='310' column='1'/>
+        <parameter type-id='95e97e5e' name='resno' filepath='drivers/pci/setup-res.c' line='310' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='pci_bus_type' type-id='b31bfc8a' mangled-name='pci_bus_type' visibility='default' filepath='drivers/pci/pci-driver.c' line='1598' column='1' elf-symbol-id='pci_bus_type'/>
@@ -122472,8 +117853,8 @@
         <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4302' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_dev_put' mangled-name='pci_dev_put' filepath='include/linux/pci.h' line='1077' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_dev_put'>
-        <parameter type-id='85196e3f'/>
+      <function-decl name='pci_dev_put' mangled-name='pci_dev_put' filepath='drivers/pci/pci-driver.c' line='1491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_dev_put'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci-driver.c' line='1491' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_device_group' mangled-name='pci_device_group' filepath='drivers/iommu/iommu.c' line='1394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_device_group'>
@@ -122488,12 +117869,12 @@
         <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2138' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_disable_msi' mangled-name='pci_disable_msi' filepath='include/linux/pci.h' line='1485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_msi'>
-        <parameter type-id='85196e3f'/>
+      <function-decl name='pci_disable_msi' mangled-name='pci_disable_msi' filepath='drivers/pci/msi.c' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_msi'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='962' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_disable_pcie_error_reporting' mangled-name='pci_disable_pcie_error_reporting' filepath='include/linux/aer.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_pcie_error_reporting'>
-        <parameter type-id='85196e3f'/>
+      <function-decl name='pci_disable_pcie_error_reporting' mangled-name='pci_disable_pcie_error_reporting' filepath='drivers/pci/pcie/aer.c' line='237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_pcie_error_reporting'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pcie/aer.c' line='237' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_disable_sriov' mangled-name='pci_disable_sriov' filepath='drivers/pci/iov.c' line='943' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_sriov'>
@@ -122527,19 +117908,19 @@
         <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2502' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_find_bus' mangled-name='pci_find_bus' filepath='include/linux/pci.h' line='1040' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_bus'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_find_bus' mangled-name='pci_find_bus' filepath='drivers/pci/search.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_bus'>
+        <parameter type-id='95e97e5e' name='domain' filepath='drivers/pci/search.c' line='141' column='1'/>
+        <parameter type-id='95e97e5e' name='busnr' filepath='drivers/pci/search.c' line='141' column='1'/>
         <return type-id='d1feb554'/>
       </function-decl>
-      <function-decl name='pci_find_capability' mangled-name='pci_find_capability' filepath='include/linux/pci.h' line='1091' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_capability'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_find_capability' mangled-name='pci_find_capability' filepath='drivers/pci/pci.c' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_capability'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='480' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='480' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_find_ext_capability' mangled-name='pci_find_ext_capability' filepath='include/linux/pci.h' line='1093' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_ext_capability'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_find_ext_capability' mangled-name='pci_find_ext_capability' filepath='drivers/pci/pci.c' line='586' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_ext_capability'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='586' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='586' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_find_next_capability' mangled-name='pci_find_next_capability' filepath='drivers/pci/pci.c' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_next_capability'>
@@ -122554,8 +117935,8 @@
         <parameter type-id='eaa32e2f' name='dev_id' filepath='drivers/pci/irq.c' line='70' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_free_irq_vectors' mangled-name='pci_free_irq_vectors' filepath='include/linux/pci.h' line='1505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_free_irq_vectors'>
-        <parameter type-id='85196e3f'/>
+      <function-decl name='pci_free_irq_vectors' mangled-name='pci_free_irq_vectors' filepath='drivers/pci/msi.c' line='1262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_free_irq_vectors'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='1262' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_get_device' mangled-name='pci_get_device' filepath='drivers/pci/search.c' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_get_device'>
@@ -122564,9 +117945,9 @@
         <parameter type-id='85196e3f' name='from' filepath='drivers/pci/search.c' line='334' column='1'/>
         <return type-id='85196e3f'/>
       </function-decl>
-      <function-decl name='pci_get_slot' mangled-name='pci_get_slot' filepath='include/linux/pci.h' line='1106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_get_slot'>
-        <parameter type-id='d1feb554'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='pci_get_slot' mangled-name='pci_get_slot' filepath='drivers/pci/search.c' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_get_slot'>
+        <parameter type-id='d1feb554' name='bus' filepath='drivers/pci/search.c' line='195' column='1'/>
+        <parameter type-id='f0981eeb' name='devfn' filepath='drivers/pci/search.c' line='195' column='1'/>
         <return type-id='85196e3f'/>
       </function-decl>
       <function-decl name='pci_intx' mangled-name='pci_intx' filepath='drivers/pci/pci.c' line='4444' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_intx'>
@@ -122592,14 +117973,14 @@
         <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='209' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='pci_irq_get_affinity' mangled-name='pci_irq_get_affinity' filepath='include/linux/pci.h' line='1507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_get_affinity'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_irq_get_affinity' mangled-name='pci_irq_get_affinity' filepath='drivers/pci/msi.c' line='1320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_get_affinity'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='1320' column='1'/>
+        <parameter type-id='95e97e5e' name='nr' filepath='drivers/pci/msi.c' line='1320' column='1'/>
         <return type-id='5f8a1ac4'/>
       </function-decl>
-      <function-decl name='pci_irq_vector' mangled-name='pci_irq_vector' filepath='include/linux/pci.h' line='1506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_vector'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='pci_irq_vector' mangled-name='pci_irq_vector' filepath='drivers/pci/msi.c' line='1281' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_vector'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='1281' column='1'/>
+        <parameter type-id='f0981eeb' name='nr' filepath='drivers/pci/msi.c' line='1281' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_load_and_free_saved_state' mangled-name='pci_load_and_free_saved_state' filepath='drivers/pci/pci.c' line='1785' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_and_free_saved_state'>
@@ -122635,18 +118016,18 @@
         <parameter type-id='26d4d46f' name='val' filepath='drivers/pci/access.c' line='533' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_release_region' mangled-name='pci_release_region' filepath='include/linux/pci.h' line='1339' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_region'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_release_region' mangled-name='pci_release_region' filepath='drivers/pci/pci.c' line='3788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_region'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3788' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3788' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_release_regions' mangled-name='pci_release_regions' filepath='drivers/pci/pci.c' line='3946' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_regions'>
         <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3946' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_release_selected_regions' mangled-name='pci_release_selected_regions' filepath='include/linux/pci.h' line='1342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_selected_regions'>
-        <parameter type-id='85196e3f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pci_release_selected_regions' mangled-name='pci_release_selected_regions' filepath='drivers/pci/pci.c' line='3885' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_selected_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3885' column='1'/>
+        <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3885' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_request_irq' mangled-name='pci_request_irq' filepath='drivers/pci/irq.c' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_irq'>
@@ -122680,8 +118061,8 @@
         <parameter type-id='d1feb554' name='bus' filepath='drivers/pci/probe.c' line='3227' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='pci_restore_msi_state' mangled-name='pci_restore_msi_state' filepath='include/linux/pci.h' line='1488' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_msi_state'>
-        <parameter type-id='85196e3f'/>
+      <function-decl name='pci_restore_msi_state' mangled-name='pci_restore_msi_state' filepath='drivers/pci/msi.c' line='446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_msi_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='446' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_restore_state' mangled-name='pci_restore_state' filepath='drivers/pci/pci.c' line='1662' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_state'>
@@ -122746,10 +118127,10 @@
         <parameter type-id='1dc6a898' name='val' filepath='drivers/pci/access.c' line='562' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pcibios_resource_to_bus' mangled-name='pcibios_resource_to_bus' filepath='include/linux/pci.h' line='1035' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcibios_resource_to_bus'>
-        <parameter type-id='d1feb554'/>
-        <parameter type-id='e045254b'/>
-        <parameter type-id='c9d64c0d'/>
+      <function-decl name='pcibios_resource_to_bus' mangled-name='pcibios_resource_to_bus' filepath='drivers/pci/host-bridge.c' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcibios_resource_to_bus'>
+        <parameter type-id='d1feb554' name='bus' filepath='drivers/pci/host-bridge.c' line='50' column='1'/>
+        <parameter type-id='e045254b' name='region' filepath='drivers/pci/host-bridge.c' line='50' column='1'/>
+        <parameter type-id='c9d64c0d' name='res' filepath='drivers/pci/host-bridge.c' line='51' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pcie_aspm_enabled' mangled-name='pcie_aspm_enabled' filepath='drivers/pci/pcie/aspm.c' line='1193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pcie_aspm_enabled'>
@@ -122787,20 +118168,20 @@
         <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='3158' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='perf_event_create_kernel_counter' mangled-name='perf_event_create_kernel_counter' filepath='include/linux/perf_event.h' line='974' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_create_kernel_counter'>
-        <parameter type-id='20862e61'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='20a2e4e6'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='perf_event_create_kernel_counter' mangled-name='perf_event_create_kernel_counter' filepath='kernel/events/core.c' line='12198' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_create_kernel_counter'>
+        <parameter type-id='20862e61' name='attr' filepath='kernel/events/core.c' line='12198' column='1'/>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/events/core.c' line='12198' column='1'/>
+        <parameter type-id='f23e2572' name='task' filepath='kernel/events/core.c' line='12199' column='1'/>
+        <parameter type-id='20a2e4e6' name='overflow_handler' filepath='kernel/events/core.c' line='12200' column='1'/>
+        <parameter type-id='eaa32e2f' name='context' filepath='kernel/events/core.c' line='12201' column='1'/>
         <return type-id='2bf16f59'/>
       </function-decl>
-      <function-decl name='perf_event_disable' mangled-name='perf_event_disable' filepath='include/linux/perf_event.h' line='1426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_disable'>
-        <parameter type-id='2bf16f59'/>
+      <function-decl name='perf_event_disable' mangled-name='perf_event_disable' filepath='kernel/events/core.c' line='2523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_disable'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='2523' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='perf_event_enable' mangled-name='perf_event_enable' filepath='include/linux/perf_event.h' line='1425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_enable'>
-        <parameter type-id='2bf16f59'/>
+      <function-decl name='perf_event_enable' mangled-name='perf_event_enable' filepath='kernel/events/core.c' line='3058' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_enable'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='3058' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='perf_event_pause' mangled-name='perf_event_pause' filepath='kernel/events/core.c' line='5422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_pause'>
@@ -122808,21 +118189,21 @@
         <parameter type-id='b50a4934' name='reset' filepath='kernel/events/core.c' line='5422' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='perf_event_read_local' mangled-name='perf_event_read_local' filepath='include/linux/perf_event.h' line='981' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_read_local'>
-        <parameter type-id='2bf16f59'/>
-        <parameter type-id='3df9fd28'/>
-        <parameter type-id='3df9fd28'/>
-        <parameter type-id='3df9fd28'/>
+      <function-decl name='perf_event_read_local' mangled-name='perf_event_read_local' filepath='kernel/events/core.c' line='4396' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_read_local'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='4396' column='1'/>
+        <parameter type-id='3df9fd28' name='value' filepath='kernel/events/core.c' line='4396' column='1'/>
+        <parameter type-id='3df9fd28' name='enabled' filepath='kernel/events/core.c' line='4397' column='1'/>
+        <parameter type-id='3df9fd28' name='running' filepath='kernel/events/core.c' line='4397' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='perf_event_read_value' mangled-name='perf_event_read_value' filepath='include/linux/perf_event.h' line='983' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_read_value'>
-        <parameter type-id='2bf16f59'/>
-        <parameter type-id='3df9fd28'/>
-        <parameter type-id='3df9fd28'/>
+      <function-decl name='perf_event_read_value' mangled-name='perf_event_read_value' filepath='kernel/events/core.c' line='5204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_read_value'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='5204' column='1'/>
+        <parameter type-id='3df9fd28' name='enabled' filepath='kernel/events/core.c' line='5204' column='1'/>
+        <parameter type-id='3df9fd28' name='running' filepath='kernel/events/core.c' line='5204' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='perf_event_release_kernel' mangled-name='perf_event_release_kernel' filepath='include/linux/perf_event.h' line='972' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_release_kernel'>
-        <parameter type-id='2bf16f59'/>
+      <function-decl name='perf_event_release_kernel' mangled-name='perf_event_release_kernel' filepath='kernel/events/core.c' line='5054' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_release_kernel'>
+        <parameter type-id='2bf16f59' name='event' filepath='kernel/events/core.c' line='5054' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='perf_event_update_userpage' mangled-name='perf_event_update_userpage' filepath='kernel/events/core.c' line='5789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_event_update_userpage'>
@@ -122849,21 +118230,21 @@
         <parameter type-id='0906f5b9' name='pmu' filepath='kernel/events/core.c' line='10985' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='perf_trace_buf_alloc' mangled-name='perf_trace_buf_alloc' filepath='include/linux/trace_events.h' line='750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_trace_buf_alloc'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='a89ff5a9'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='perf_trace_buf_alloc' mangled-name='perf_trace_buf_alloc' filepath='kernel/trace/trace_event_perf.c' line='395' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_trace_buf_alloc'>
+        <parameter type-id='95e97e5e' name='size' filepath='kernel/trace/trace_event_perf.c' line='395' column='1'/>
+        <parameter type-id='a89ff5a9' name='regs' filepath='kernel/trace/trace_event_perf.c' line='395' column='1'/>
+        <parameter type-id='7292109c' name='rctxp' filepath='kernel/trace/trace_event_perf.c' line='395' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='perf_trace_run_bpf_submit' mangled-name='perf_trace_run_bpf_submit' filepath='include/linux/trace_events.h' line='779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_trace_run_bpf_submit'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='23d6768c'/>
-        <parameter type-id='91ce1af9'/>
-        <parameter type-id='4616a179'/>
-        <parameter type-id='030d0b18'/>
-        <parameter type-id='f23e2572'/>
+      <function-decl name='perf_trace_run_bpf_submit' mangled-name='perf_trace_run_bpf_submit' filepath='kernel/events/core.c' line='9484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_trace_run_bpf_submit'>
+        <parameter type-id='eaa32e2f' name='raw_data' filepath='kernel/events/core.c' line='9484' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='kernel/events/core.c' line='9484' column='1'/>
+        <parameter type-id='95e97e5e' name='rctx' filepath='kernel/events/core.c' line='9484' column='1'/>
+        <parameter type-id='23d6768c' name='call' filepath='kernel/events/core.c' line='9485' column='1'/>
+        <parameter type-id='91ce1af9' name='count' filepath='kernel/events/core.c' line='9485' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='kernel/events/core.c' line='9486' column='1'/>
+        <parameter type-id='030d0b18' name='head' filepath='kernel/events/core.c' line='9486' column='1'/>
+        <parameter type-id='f23e2572' name='task' filepath='kernel/events/core.c' line='9487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pfn_valid' mangled-name='pfn_valid' filepath='arch/arm64/mm/init.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pfn_valid'>
@@ -122901,9 +118282,9 @@
         <parameter type-id='95e97e5e' name='submode' filepath='drivers/phy/phy-core.c' line='359' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pid_task' mangled-name='pid_task' filepath='include/linux/pid.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pid_task'>
-        <parameter type-id='b94e5398'/>
-        <parameter type-id='ce78cf46'/>
+      <function-decl name='pid_task' mangled-name='pid_task' filepath='kernel/pid.c' line='396' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pid_task'>
+        <parameter type-id='b94e5398' name='pid' filepath='kernel/pid.c' line='396' column='1'/>
+        <parameter type-id='ce78cf46' name='type' filepath='kernel/pid.c' line='396' column='1'/>
         <return type-id='f23e2572'/>
       </function-decl>
       <function-decl name='pin_get_name' mangled-name='pin_get_name' filepath='drivers/pinctrl/core.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_get_name'>
@@ -122911,12 +118292,12 @@
         <parameter type-id='20f5f452' name='pin' filepath='drivers/pinctrl/core.c' line='167' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='include/linux/mm.h' line='1887' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='9f93c9da'/>
-        <parameter type-id='8b6fdee4'/>
+      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2926' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2926' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2927' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2927' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2928' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
@@ -123027,8 +118408,8 @@
       </function-decl>
       <var-decl name='platform_bus' type-id='66e487eb' mangled-name='platform_bus' visibility='default' filepath='drivers/base/platform.c' line='38' column='1' elf-symbol-id='platform_bus'/>
       <var-decl name='platform_bus_type' type-id='b31bfc8a' mangled-name='platform_bus_type' visibility='default' filepath='drivers/base/platform.c' line='1360' column='1' elf-symbol-id='platform_bus_type'/>
-      <function-decl name='platform_device_add' mangled-name='platform_device_add' filepath='include/linux/platform_device.h' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add'>
-        <parameter type-id='db362995'/>
+      <function-decl name='platform_device_add' mangled-name='platform_device_add' filepath='drivers/base/platform.c' line='550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='550' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='platform_device_add_data' mangled-name='platform_device_add_data' filepath='drivers/base/platform.c' line='510' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add_data'>
@@ -123048,29 +118429,29 @@
         <parameter type-id='f0981eeb' name='num' filepath='drivers/base/platform.c' line='483' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='platform_device_alloc' mangled-name='platform_device_alloc' filepath='include/linux/platform_device.h' line='194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_alloc'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='platform_device_alloc' mangled-name='platform_device_alloc' filepath='drivers/base/platform.c' line='454' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_alloc'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/platform.c' line='454' column='1'/>
+        <parameter type-id='95e97e5e' name='id' filepath='drivers/base/platform.c' line='454' column='1'/>
         <return type-id='db362995'/>
       </function-decl>
-      <function-decl name='platform_device_del' mangled-name='platform_device_del' filepath='include/linux/platform_device.h' line='203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_del'>
-        <parameter type-id='db362995'/>
+      <function-decl name='platform_device_del' mangled-name='platform_device_del' filepath='drivers/base/platform.c' line='640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_del'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='640' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='platform_device_put' mangled-name='platform_device_put' filepath='include/linux/platform_device.h' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_put'>
-        <parameter type-id='db362995'/>
+      <function-decl name='platform_device_put' mangled-name='platform_device_put' filepath='drivers/base/platform.c' line='426' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_put'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='426' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='platform_device_register' mangled-name='platform_device_register' filepath='include/linux/platform_device.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_register'>
-        <parameter type-id='db362995'/>
+      <function-decl name='platform_device_register' mangled-name='platform_device_register' filepath='drivers/base/platform.c' line='665' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_register'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='665' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='platform_device_register_full' mangled-name='platform_device_register_full' filepath='include/linux/platform_device.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_register_full'>
-        <parameter type-id='91d6c443'/>
+      <function-decl name='platform_device_register_full' mangled-name='platform_device_register_full' filepath='drivers/base/platform.c' line='696' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_register_full'>
+        <parameter type-id='91d6c443' name='pdevinfo' filepath='drivers/base/platform.c' line='697' column='1'/>
         <return type-id='db362995'/>
       </function-decl>
-      <function-decl name='platform_device_unregister' mangled-name='platform_device_unregister' filepath='include/linux/platform_device.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_unregister'>
-        <parameter type-id='db362995'/>
+      <function-decl name='platform_device_unregister' mangled-name='platform_device_unregister' filepath='drivers/base/platform.c' line='681' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_unregister'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/base/platform.c' line='681' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='platform_driver_unregister' mangled-name='platform_driver_unregister' filepath='drivers/base/platform.c' line='824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_driver_unregister'>
@@ -123082,43 +118463,43 @@
         <parameter type-id='d5ddffb9' name='drv' filepath='drivers/base/platform.c' line='1382' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='platform_get_irq' mangled-name='platform_get_irq' filepath='include/linux/platform_device.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='platform_get_irq' mangled-name='platform_get_irq' filepath='drivers/base/platform.c' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='260' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/base/platform.c' line='260' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='platform_get_irq_byname' mangled-name='platform_get_irq_byname' filepath='include/linux/platform_device.h' line='80' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq_byname'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='platform_get_irq_byname' mangled-name='platform_get_irq_byname' filepath='drivers/base/platform.c' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq_byname'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='347' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/platform.c' line='347' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='platform_get_irq_optional' mangled-name='platform_get_irq_optional' filepath='include/linux/platform_device.h' line='75' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq_optional'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='platform_get_irq_optional' mangled-name='platform_get_irq_optional' filepath='drivers/base/platform.c' line='172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_irq_optional'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='172' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/base/platform.c' line='172' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='platform_get_resource' mangled-name='platform_get_resource' filepath='include/linux/platform_device.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_resource'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='platform_get_resource' mangled-name='platform_get_resource' filepath='drivers/base/platform.c' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_resource'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='51' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='drivers/base/platform.c' line='52' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/base/platform.c' line='52' column='1'/>
         <return type-id='c9d64c0d'/>
       </function-decl>
-      <function-decl name='platform_get_resource_byname' mangled-name='platform_get_resource_byname' filepath='include/linux/platform_device.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_resource_byname'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='platform_get_resource_byname' mangled-name='platform_get_resource_byname' filepath='drivers/base/platform.c' line='298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_get_resource_byname'>
+        <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='298' column='1'/>
+        <parameter type-id='f0981eeb' name='type' filepath='drivers/base/platform.c' line='299' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/platform.c' line='300' column='1'/>
         <return type-id='c9d64c0d'/>
       </function-decl>
       <function-decl name='platform_irq_count' mangled-name='platform_irq_count' filepath='drivers/base/platform.c' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_irq_count'>
         <parameter type-id='db362995' name='dev' filepath='drivers/base/platform.c' line='278' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pm_generic_runtime_resume' mangled-name='pm_generic_runtime_resume' filepath='include/linux/pm_runtime.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_generic_runtime_resume'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='pm_generic_runtime_resume' mangled-name='pm_generic_runtime_resume' filepath='drivers/base/power/generic_ops.c' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_generic_runtime_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/generic_ops.c' line='39' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pm_generic_runtime_suspend' mangled-name='pm_generic_runtime_suspend' filepath='include/linux/pm_runtime.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_generic_runtime_suspend'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='pm_generic_runtime_suspend' mangled-name='pm_generic_runtime_suspend' filepath='drivers/base/power/generic_ops.c' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_generic_runtime_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/generic_ops.c' line='20' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pm_genpd_add_subdomain' mangled-name='pm_genpd_add_subdomain' filepath='drivers/base/power/domain.c' line='1856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_genpd_add_subdomain'>
@@ -123146,16 +118527,16 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='777' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pm_runtime_allow' mangled-name='pm_runtime_allow' filepath='include/linux/pm_runtime.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_allow'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='pm_runtime_allow' mangled-name='pm_runtime_allow' filepath='drivers/base/power/runtime.c' line='1502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_allow'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1502' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pm_runtime_enable' mangled-name='pm_runtime_enable' filepath='include/linux/pm_runtime.h' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_enable'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='pm_runtime_enable' mangled-name='pm_runtime_enable' filepath='drivers/base/power/runtime.c' line='1446' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_enable'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1446' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pm_runtime_forbid' mangled-name='pm_runtime_forbid' filepath='include/linux/pm_runtime.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_forbid'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='pm_runtime_forbid' mangled-name='pm_runtime_forbid' filepath='drivers/base/power/runtime.c' line='1481' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_forbid'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1481' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pm_runtime_force_resume' mangled-name='pm_runtime_force_resume' filepath='drivers/base/power/runtime.c' line='1854' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_force_resume'>
@@ -123175,9 +118556,9 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1548' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pm_runtime_set_autosuspend_delay' mangled-name='pm_runtime_set_autosuspend_delay' filepath='include/linux/pm_runtime.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_set_autosuspend_delay'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='pm_runtime_set_autosuspend_delay' mangled-name='pm_runtime_set_autosuspend_delay' filepath='drivers/base/power/runtime.c' line='1606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_runtime_set_autosuspend_delay'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/runtime.c' line='1606' column='1'/>
+        <parameter type-id='95e97e5e' name='delay' filepath='drivers/base/power/runtime.c' line='1606' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pm_stay_awake' mangled-name='pm_stay_awake' filepath='drivers/base/power/wakeup.c' line='668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_stay_awake'>
@@ -123188,28 +118569,28 @@
       <function-decl name='pm_system_wakeup' mangled-name='pm_system_wakeup' filepath='drivers/base/power/wakeup.c' line='972' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_system_wakeup'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pm_wakeup_dev_event' mangled-name='pm_wakeup_dev_event' filepath='include/linux/pm_wakeup.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_wakeup_dev_event'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='pm_wakeup_dev_event' mangled-name='pm_wakeup_dev_event' filepath='drivers/base/power/wakeup.c' line='866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_wakeup_dev_event'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='866' column='1'/>
+        <parameter type-id='f0981eeb' name='msec' filepath='drivers/base/power/wakeup.c' line='866' column='1'/>
+        <parameter type-id='b50a4934' name='hard' filepath='drivers/base/power/wakeup.c' line='866' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pm_wakeup_ws_event' mangled-name='pm_wakeup_ws_event' filepath='include/linux/pm_wakeup.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_wakeup_ws_event'>
-        <parameter type-id='1ea237a6'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='pm_wakeup_ws_event' mangled-name='pm_wakeup_ws_event' filepath='drivers/base/power/wakeup.c' line='827' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pm_wakeup_ws_event'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='827' column='1'/>
+        <parameter type-id='f0981eeb' name='msec' filepath='drivers/base/power/wakeup.c' line='827' column='1'/>
+        <parameter type-id='b50a4934' name='hard' filepath='drivers/base/power/wakeup.c' line='827' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='policy_has_boost_freq' mangled-name='policy_has_boost_freq' filepath='drivers/cpufreq/freq_table.c' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='policy_has_boost_freq'>
         <parameter type-id='343c3ae4' name='policy' filepath='drivers/cpufreq/freq_table.c' line='18' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='power_supply_changed' mangled-name='power_supply_changed' filepath='include/linux/power_supply.h' line='439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_changed'>
-        <parameter type-id='c0c93c9e'/>
+      <function-decl name='power_supply_changed' mangled-name='power_supply_changed' filepath='drivers/power/supply/power_supply_core.c' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_changed'>
+        <parameter type-id='c0c93c9e' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='121' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='power_supply_get_by_name' mangled-name='power_supply_get_by_name' filepath='include/linux/power_supply.h' line='399' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_by_name'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='power_supply_get_by_name' mangled-name='power_supply_get_by_name' filepath='drivers/power/supply/power_supply_core.c' line='458' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_by_name'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/power/supply/power_supply_core.c' line='458' column='1'/>
         <return type-id='c0c93c9e'/>
       </function-decl>
       <function-decl name='power_supply_get_by_phandle_array' mangled-name='power_supply_get_by_phandle_array' filepath='drivers/power/supply/power_supply_core.c' line='574' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_get_by_phandle_array'>
@@ -123229,8 +118610,8 @@
         <parameter type-id='2e53d20f' name='val' filepath='drivers/power/supply/power_supply_core.c' line='948' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='power_supply_put' mangled-name='power_supply_put' filepath='include/linux/power_supply.h' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_put'>
-        <parameter type-id='c0c93c9e'/>
+      <function-decl name='power_supply_put' mangled-name='power_supply_put' filepath='drivers/power/supply/power_supply_core.c' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_put'>
+        <parameter type-id='c0c93c9e' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='480' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='power_supply_reg_notifier' mangled-name='power_supply_reg_notifier' filepath='drivers/power/supply/power_supply_core.c' line='1005' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_reg_notifier'>
@@ -123243,88 +118624,88 @@
         <parameter type-id='048b3ad6' name='cfg' filepath='drivers/power/supply/power_supply_core.c' line='1307' column='1'/>
         <return type-id='c0c93c9e'/>
       </function-decl>
-      <function-decl name='power_supply_set_property' mangled-name='power_supply_set_property' filepath='include/linux/power_supply.h' line='455' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_set_property'>
-        <parameter type-id='c0c93c9e'/>
-        <parameter type-id='5f78aa17'/>
-        <parameter type-id='f3abafd4'/>
+      <function-decl name='power_supply_set_property' mangled-name='power_supply_set_property' filepath='drivers/power/supply/power_supply_core.c' line='960' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_set_property'>
+        <parameter type-id='c0c93c9e' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='960' column='1'/>
+        <parameter type-id='5f78aa17' name='psp' filepath='drivers/power/supply/power_supply_core.c' line='961' column='1'/>
+        <parameter type-id='f3abafd4' name='val' filepath='drivers/power/supply/power_supply_core.c' line='962' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='power_supply_unreg_notifier' mangled-name='power_supply_unreg_notifier' filepath='drivers/power/supply/power_supply_core.c' line='1011' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_unreg_notifier'>
         <parameter type-id='d504f73d' name='nb' filepath='drivers/power/supply/power_supply_core.c' line='1011' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='power_supply_unregister' mangled-name='power_supply_unregister' filepath='include/linux/power_supply.h' line='484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_unregister'>
-        <parameter type-id='c0c93c9e'/>
+      <function-decl name='power_supply_unregister' mangled-name='power_supply_unregister' filepath='drivers/power/supply/power_supply_core.c' line='1422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='power_supply_unregister'>
+        <parameter type-id='c0c93c9e' name='psy' filepath='drivers/power/supply/power_supply_core.c' line='1422' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='prandom_bytes' mangled-name='prandom_bytes' filepath='include/linux/prandom.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_bytes'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='prandom_bytes' mangled-name='prandom_bytes' filepath='lib/random32.c' line='400' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_bytes'>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/random32.c' line='400' column='1'/>
+        <parameter type-id='b59d7dce' name='bytes' filepath='lib/random32.c' line='400' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='prandom_u32' mangled-name='prandom_u32' filepath='include/linux/prandom.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_u32'>
+      <function-decl name='prandom_u32' mangled-name='prandom_u32' filepath='lib/random32.c' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_u32'>
         <return type-id='19c2251e'/>
       </function-decl>
-      <function-decl name='preempt_schedule' mangled-name='preempt_schedule' filepath='arch/arm64/include/asm/preempt.h' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule'>
+      <function-decl name='preempt_schedule' mangled-name='preempt_schedule' filepath='kernel/sched/core.c' line='4971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='preempt_schedule_notrace' mangled-name='preempt_schedule_notrace' filepath='arch/arm64/include/asm/preempt.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule_notrace'>
+      <function-decl name='preempt_schedule_notrace' mangled-name='preempt_schedule_notrace' filepath='kernel/sched/core.c' line='4999' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule_notrace'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='prepare_to_wait' mangled-name='prepare_to_wait' filepath='include/linux/wait.h' line='1154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait'>
-        <parameter type-id='3f8b2ed3'/>
-        <parameter type-id='db9d03e3'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='prepare_to_wait' mangled-name='prepare_to_wait' filepath='kernel/sched/wait.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='250' column='1'/>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='250' column='1'/>
+        <parameter type-id='95e97e5e' name='state' filepath='kernel/sched/wait.c' line='250' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='prepare_to_wait_event' mangled-name='prepare_to_wait_event' filepath='include/linux/wait.h' line='1156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait_event'>
-        <parameter type-id='3f8b2ed3'/>
-        <parameter type-id='db9d03e3'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='prepare_to_wait_event' mangled-name='prepare_to_wait_event' filepath='kernel/sched/wait.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait_event'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='291' column='1'/>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='291' column='1'/>
+        <parameter type-id='95e97e5e' name='state' filepath='kernel/sched/wait.c' line='291' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='print_hex_dump' mangled-name='print_hex_dump' filepath='include/linux/printk.h' line='581' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='print_hex_dump'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='print_hex_dump' mangled-name='print_hex_dump' filepath='lib/hexdump.c' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='print_hex_dump'>
+        <parameter type-id='80f4b756' name='level' filepath='lib/hexdump.c' line='240' column='1'/>
+        <parameter type-id='80f4b756' name='prefix_str' filepath='lib/hexdump.c' line='240' column='1'/>
+        <parameter type-id='95e97e5e' name='prefix_type' filepath='lib/hexdump.c' line='240' column='1'/>
+        <parameter type-id='95e97e5e' name='rowsize' filepath='lib/hexdump.c' line='241' column='1'/>
+        <parameter type-id='95e97e5e' name='groupsize' filepath='lib/hexdump.c' line='241' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/hexdump.c' line='242' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='lib/hexdump.c' line='242' column='1'/>
+        <parameter type-id='b50a4934' name='ascii' filepath='lib/hexdump.c' line='242' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='printk' mangled-name='printk' filepath='include/linux/printk.h' line='176' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printk'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='printk' mangled-name='printk' filepath='kernel/printk/printk.c' line='2103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printk'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/printk/printk.c' line='2103' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='printk_deferred' mangled-name='printk_deferred' filepath='include/linux/printk.h' line='181' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printk_deferred'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='printk_deferred' mangled-name='printk_deferred' filepath='kernel/printk/printk.c' line='3113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='printk_deferred'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/printk/printk.c' line='3113' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='proc_create' mangled-name='proc_create' filepath='include/linux/proc_fs.h' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='d077e928'/>
-        <parameter type-id='33d70f0f'/>
+      <function-decl name='proc_create' mangled-name='proc_create' filepath='fs/proc/generic.c' line='584' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/proc/generic.c' line='584' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/proc/generic.c' line='584' column='1'/>
+        <parameter type-id='d077e928' name='parent' filepath='fs/proc/generic.c' line='585' column='1'/>
+        <parameter type-id='33d70f0f' name='proc_ops' filepath='fs/proc/generic.c' line='586' column='1'/>
         <return type-id='d077e928'/>
       </function-decl>
-      <function-decl name='proc_create_data' mangled-name='proc_create_data' filepath='include/linux/proc_fs.h' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create_data'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='d077e928'/>
-        <parameter type-id='33d70f0f'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='proc_create_data' mangled-name='proc_create_data' filepath='fs/proc/generic.c' line='569' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create_data'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/proc/generic.c' line='569' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/proc/generic.c' line='569' column='1'/>
+        <parameter type-id='d077e928' name='parent' filepath='fs/proc/generic.c' line='570' column='1'/>
+        <parameter type-id='33d70f0f' name='proc_ops' filepath='fs/proc/generic.c' line='571' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/proc/generic.c' line='571' column='1'/>
         <return type-id='d077e928'/>
       </function-decl>
-      <function-decl name='proc_create_single_data' mangled-name='proc_create_single_data' filepath='include/linux/proc_fs.h' line='98' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create_single_data'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2594b00f'/>
-        <parameter type-id='d077e928'/>
-        <parameter type-id='0131eb61'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='proc_create_single_data' mangled-name='proc_create_single_data' filepath='fs/proc/generic.c' line='649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_create_single_data'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/proc/generic.c' line='649' column='1'/>
+        <parameter type-id='2594b00f' name='mode' filepath='fs/proc/generic.c' line='649' column='1'/>
+        <parameter type-id='d077e928' name='parent' filepath='fs/proc/generic.c' line='650' column='1'/>
+        <parameter type-id='0131eb61' name='show' filepath='fs/proc/generic.c' line='651' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/proc/generic.c' line='651' column='1'/>
         <return type-id='d077e928'/>
       </function-decl>
       <function-decl name='proc_dointvec' mangled-name='proc_dointvec' filepath='kernel/sysctl.c' line='825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dointvec'>
@@ -123351,9 +118732,9 @@
         <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='1052' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='proc_mkdir' mangled-name='proc_mkdir' filepath='include/linux/proc_fs.h' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_mkdir'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='d077e928'/>
+      <function-decl name='proc_mkdir' mangled-name='proc_mkdir' filepath='fs/proc/generic.c' line='520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_mkdir'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/proc/generic.c' line='520' column='1'/>
+        <parameter type-id='d077e928' name='parent' filepath='fs/proc/generic.c' line='521' column='1'/>
         <return type-id='d077e928'/>
       </function-decl>
       <function-decl name='proc_mkdir_data' mangled-name='proc_mkdir_data' filepath='fs/proc/generic.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_mkdir_data'>
@@ -123363,8 +118744,8 @@
         <parameter type-id='eaa32e2f' name='data' filepath='fs/proc/generic.c' line='507' column='1'/>
         <return type-id='d077e928'/>
       </function-decl>
-      <function-decl name='proc_remove' mangled-name='proc_remove' filepath='include/linux/proc_fs.h' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_remove'>
-        <parameter type-id='d077e928'/>
+      <function-decl name='proc_remove' mangled-name='proc_remove' filepath='fs/proc/generic.c' line='792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_remove'>
+        <parameter type-id='d077e928' name='de' filepath='fs/proc/generic.c' line='792' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='proc_set_size' mangled-name='proc_set_size' filepath='fs/proc/generic.c' line='664' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_set_size'>
@@ -123372,13 +118753,13 @@
         <parameter type-id='69bf7bee' name='size' filepath='fs/proc/generic.c' line='664' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='proto_register' mangled-name='proto_register' filepath='include/net/sock.h' line='1253' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proto_register'>
-        <parameter type-id='d2524501'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='proto_register' mangled-name='proto_register' filepath='net/core/sock.c' line='3485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proto_register'>
+        <parameter type-id='d2524501' name='prot' filepath='net/core/sock.c' line='3485' column='1'/>
+        <parameter type-id='95e97e5e' name='alloc_slab' filepath='net/core/sock.c' line='3485' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='proto_unregister' mangled-name='proto_unregister' filepath='include/net/sock.h' line='1254' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proto_unregister'>
-        <parameter type-id='d2524501'/>
+      <function-decl name='proto_unregister' mangled-name='proto_unregister' filepath='net/core/sock.c' line='3549' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proto_unregister'>
+        <parameter type-id='d2524501' name='prot' filepath='net/core/sock.c' line='3549' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ps2_begin_command' mangled-name='ps2_begin_command' filepath='drivers/input/serio/libps2.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ps2_begin_command'>
@@ -123431,23 +118812,23 @@
         <parameter type-id='f9b06939' name='command' filepath='drivers/input/serio/libps2.c' line='347' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pskb_expand_head' mangled-name='pskb_expand_head' filepath='include/linux/skbuff.h' line='1168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pskb_expand_head'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='pskb_expand_head' mangled-name='pskb_expand_head' filepath='net/core/skbuff.c' line='1623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pskb_expand_head'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1623' column='1'/>
+        <parameter type-id='95e97e5e' name='nhead' filepath='net/core/skbuff.c' line='1623' column='1'/>
+        <parameter type-id='95e97e5e' name='ntail' filepath='net/core/skbuff.c' line='1623' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='1624' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='put_device' mangled-name='put_device' filepath='include/linux/device.h' line='931' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_device'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='put_device' mangled-name='put_device' filepath='drivers/base/core.c' line='3349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_device'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3349' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='put_disk' mangled-name='put_disk' filepath='block/genhd.c' line='1812' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_disk'>
         <parameter type-id='33c599da' name='disk' filepath='block/genhd.c' line='1812' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='put_pid' mangled-name='put_pid' filepath='include/linux/pid.h' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_pid'>
-        <parameter type-id='b94e5398'/>
+      <function-decl name='put_pid' mangled-name='put_pid' filepath='kernel/pid.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_pid'>
+        <parameter type-id='b94e5398' name='pid' filepath='kernel/pid.c' line='105' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='put_sg_io_hdr' mangled-name='put_sg_io_hdr' filepath='block/scsi_ioctl.c' line='548' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_sg_io_hdr'>
@@ -123455,8 +118836,8 @@
         <parameter type-id='eaa32e2f' name='argp' filepath='block/scsi_ioctl.c' line='548' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='put_unused_fd' mangled-name='put_unused_fd' filepath='include/linux/file.h' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_unused_fd'>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='put_unused_fd' mangled-name='put_unused_fd' filepath='fs/file.c' line='575' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_unused_fd'>
+        <parameter type-id='f0981eeb' name='fd' filepath='fs/file.c' line='575' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='put_vaddr_frames' mangled-name='put_vaddr_frames' filepath='mm/frame_vector.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='put_vaddr_frames'>
@@ -123514,10 +118895,10 @@
         <parameter type-id='7359adad' name='delay' filepath='kernel/workqueue.c' line='1695' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='queue_work_on' mangled-name='queue_work_on' filepath='include/linux/workqueue.h' line='450' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='queue_work_on'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='242e3d19'/>
-        <parameter type-id='83c1bde6'/>
+      <function-decl name='queue_work_on' mangled-name='queue_work_on' filepath='kernel/workqueue.c' line='1533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='queue_work_on'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/workqueue.c' line='1533' column='1'/>
+        <parameter type-id='242e3d19' name='wq' filepath='kernel/workqueue.c' line='1533' column='1'/>
+        <parameter type-id='83c1bde6' name='work' filepath='kernel/workqueue.c' line='1534' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='radix_tree_delete' mangled-name='radix_tree_delete' filepath='lib/radix-tree.c' line='1443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_delete'>
@@ -123525,23 +118906,23 @@
         <parameter type-id='7359adad' name='index' filepath='lib/radix-tree.c' line='1443' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='radix_tree_delete_item' mangled-name='radix_tree_delete_item' filepath='include/linux/radix-tree.h' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_delete_item'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='radix_tree_delete_item' mangled-name='radix_tree_delete_item' filepath='lib/radix-tree.c' line='1411' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_delete_item'>
+        <parameter type-id='60075f2a' name='root' filepath='lib/radix-tree.c' line='1411' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/radix-tree.c' line='1412' column='1'/>
+        <parameter type-id='eaa32e2f' name='item' filepath='lib/radix-tree.c' line='1412' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='radix_tree_gang_lookup' mangled-name='radix_tree_gang_lookup' filepath='include/linux/radix-tree.h' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_gang_lookup'>
-        <parameter type-id='bb0f13d1'/>
-        <parameter type-id='63e171df'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='radix_tree_gang_lookup' mangled-name='radix_tree_gang_lookup' filepath='lib/radix-tree.c' line='1260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_gang_lookup'>
+        <parameter type-id='bb0f13d1' name='root' filepath='lib/radix-tree.c' line='1260' column='1'/>
+        <parameter type-id='63e171df' name='results' filepath='lib/radix-tree.c' line='1260' column='1'/>
+        <parameter type-id='7359adad' name='first_index' filepath='lib/radix-tree.c' line='1261' column='1'/>
+        <parameter type-id='f0981eeb' name='max_items' filepath='lib/radix-tree.c' line='1261' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='radix_tree_insert' mangled-name='radix_tree_insert' filepath='include/linux/radix-tree.h' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_insert'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='radix_tree_insert' mangled-name='radix_tree_insert' filepath='lib/radix-tree.c' line='701' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_insert'>
+        <parameter type-id='60075f2a' name='root' filepath='lib/radix-tree.c' line='701' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/radix-tree.c' line='701' column='1'/>
+        <parameter type-id='eaa32e2f' name='item' filepath='lib/radix-tree.c' line='702' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='radix_tree_iter_delete' mangled-name='radix_tree_iter_delete' filepath='lib/radix-tree.c' line='1392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_iter_delete'>
@@ -123555,19 +118936,19 @@
         <parameter type-id='0cbbabe1' name='iter' filepath='lib/radix-tree.c' line='1134' column='1'/>
         <return type-id='63e171df'/>
       </function-decl>
-      <function-decl name='radix_tree_lookup' mangled-name='radix_tree_lookup' filepath='include/linux/radix-tree.h' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_lookup'>
-        <parameter type-id='bb0f13d1'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='radix_tree_lookup' mangled-name='radix_tree_lookup' filepath='lib/radix-tree.c' line='815' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_lookup'>
+        <parameter type-id='bb0f13d1' name='root' filepath='lib/radix-tree.c' line='815' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/radix-tree.c' line='815' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='radix_tree_next_chunk' mangled-name='radix_tree_next_chunk' filepath='include/linux/radix-tree.h' line='307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_next_chunk'>
-        <parameter type-id='bb0f13d1'/>
-        <parameter type-id='0cbbabe1'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='radix_tree_next_chunk' mangled-name='radix_tree_next_chunk' filepath='lib/radix-tree.c' line='1152' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_next_chunk'>
+        <parameter type-id='bb0f13d1' name='root' filepath='lib/radix-tree.c' line='1152' column='1'/>
+        <parameter type-id='0cbbabe1' name='iter' filepath='lib/radix-tree.c' line='1153' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='lib/radix-tree.c' line='1153' column='1'/>
         <return type-id='63e171df'/>
       </function-decl>
-      <function-decl name='radix_tree_preload' mangled-name='radix_tree_preload' filepath='include/linux/radix-tree.h' line='237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_preload'>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='radix_tree_preload' mangled-name='radix_tree_preload' filepath='lib/radix-tree.c' line='363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='radix_tree_preload'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='lib/radix-tree.c' line='363' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='rational_best_approximation' mangled-name='rational_best_approximation' filepath='lib/math/rational.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rational_best_approximation'>
@@ -123585,31 +118966,31 @@
         <parameter type-id='eaa32e2f' name='v' filepath='kernel/notifier.c' line='408' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='raw_notifier_chain_register' mangled-name='raw_notifier_chain_register' filepath='include/linux/notifier.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='raw_notifier_chain_register'>
-        <parameter type-id='dc20ab67'/>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='raw_notifier_chain_register' mangled-name='raw_notifier_chain_register' filepath='kernel/notifier.c' line='359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='raw_notifier_chain_register'>
+        <parameter type-id='dc20ab67' name='nh' filepath='kernel/notifier.c' line='359' column='1'/>
+        <parameter type-id='d504f73d' name='n' filepath='kernel/notifier.c' line='360' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='rb_erase' mangled-name='rb_erase' filepath='include/linux/rbtree.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_erase'>
-        <parameter type-id='e6532500'/>
-        <parameter type-id='c5bcc2c0'/>
+      <function-decl name='rb_erase' mangled-name='rb_erase' filepath='lib/rbtree.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_erase'>
+        <parameter type-id='e6532500' name='node' filepath='lib/rbtree.c' line='440' column='1'/>
+        <parameter type-id='c5bcc2c0' name='root' filepath='lib/rbtree.c' line='440' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='rb_first' mangled-name='rb_first' filepath='include/linux/rbtree.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_first'>
-        <parameter type-id='c4139a7d'/>
+      <function-decl name='rb_first' mangled-name='rb_first' filepath='lib/rbtree.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_first'>
+        <parameter type-id='c4139a7d' name='root' filepath='lib/rbtree.c' line='466' column='1'/>
         <return type-id='e6532500'/>
       </function-decl>
-      <function-decl name='rb_insert_color' mangled-name='rb_insert_color' filepath='include/linux/rbtree.h' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_insert_color'>
-        <parameter type-id='e6532500'/>
-        <parameter type-id='c5bcc2c0'/>
+      <function-decl name='rb_insert_color' mangled-name='rb_insert_color' filepath='lib/rbtree.c' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_insert_color'>
+        <parameter type-id='e6532500' name='node' filepath='lib/rbtree.c' line='434' column='1'/>
+        <parameter type-id='c5bcc2c0' name='root' filepath='lib/rbtree.c' line='434' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='rb_next' mangled-name='rb_next' filepath='include/linux/rbtree.h' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_next'>
-        <parameter type-id='47b73425'/>
+      <function-decl name='rb_next' mangled-name='rb_next' filepath='lib/rbtree.c' line='492' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_next'>
+        <parameter type-id='47b73425' name='node' filepath='lib/rbtree.c' line='492' column='1'/>
         <return type-id='e6532500'/>
       </function-decl>
-      <function-decl name='rb_prev' mangled-name='rb_prev' filepath='include/linux/rbtree.h' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_prev'>
-        <parameter type-id='47b73425'/>
+      <function-decl name='rb_prev' mangled-name='rb_prev' filepath='lib/rbtree.c' line='524' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_prev'>
+        <parameter type-id='47b73425' name='node' filepath='lib/rbtree.c' line='524' column='1'/>
         <return type-id='e6532500'/>
       </function-decl>
       <function-decl name='rb_replace_node' mangled-name='rb_replace_node' filepath='lib/rbtree.c' line='553' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rb_replace_node'>
@@ -123631,13 +119012,13 @@
         <parameter type-id='e0ea832a' name='lock' filepath='lib/refcount.c' line='113' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='refcount_dec_not_one' mangled-name='refcount_dec_not_one' filepath='include/linux/refcount.h' line='363' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_dec_not_one'>
-        <parameter type-id='35a0b4f8'/>
+      <function-decl name='refcount_dec_not_one' mangled-name='refcount_dec_not_one' filepath='lib/refcount.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_dec_not_one'>
+        <parameter type-id='35a0b4f8' name='r' filepath='lib/refcount.c' line='74' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='refcount_warn_saturate' mangled-name='refcount_warn_saturate' filepath='include/linux/refcount.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_warn_saturate'>
-        <parameter type-id='35a0b4f8'/>
-        <parameter type-id='ff0618be'/>
+      <function-decl name='refcount_warn_saturate' mangled-name='refcount_warn_saturate' filepath='lib/refcount.c' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_warn_saturate'>
+        <parameter type-id='35a0b4f8' name='r' filepath='lib/refcount.c' line='13' column='1'/>
+        <parameter type-id='ff0618be' name='t' filepath='lib/refcount.c' line='13' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='reg_initiator_name' mangled-name='reg_initiator_name' filepath='net/wireless/reg.c' line='1642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reg_initiator_name'>
@@ -123691,8 +119072,8 @@
         <parameter type-id='d504f73d' name='nb' filepath='kernel/notifier.c' line='552' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_filesystem' mangled-name='register_filesystem' filepath='include/linux/fs.h' line='2360' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_filesystem'>
-        <parameter type-id='21e53d44'/>
+      <function-decl name='register_filesystem' mangled-name='register_filesystem' filepath='fs/filesystems.c' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_filesystem'>
+        <parameter type-id='21e53d44' name='fs' filepath='fs/filesystems.c' line='72' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='register_inet6addr_notifier' mangled-name='register_inet6addr_notifier' filepath='net/ipv6/addrconf_core.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_inet6addr_notifier'>
@@ -123707,16 +119088,16 @@
         <parameter type-id='26d099e0' name='hook' filepath='arch/arm64/kernel/debug-monitors.c' line='294' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='register_netdev' mangled-name='register_netdev' filepath='include/linux/netdevice.h' line='4476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdev'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='register_netdev' mangled-name='register_netdev' filepath='net/core/dev.c' line='10241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdev'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10241' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_netdevice' mangled-name='register_netdevice' filepath='include/linux/netdevice.h' line='2911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdevice'>
-        <parameter type-id='68a2d05b'/>
+      <function-decl name='register_netdevice' mangled-name='register_netdevice' filepath='net/core/dev.c' line='10012' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdevice'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10012' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_netdevice_notifier' mangled-name='register_netdevice_notifier' filepath='include/linux/netdevice.h' line='2743' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdevice_notifier'>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='register_netdevice_notifier' mangled-name='register_netdevice_notifier' filepath='net/core/dev.c' line='1829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netdevice_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/core/dev.c' line='1829' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='register_netevent_notifier' mangled-name='register_netevent_notifier' filepath='net/core/netevent.c' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_netevent_notifier'>
@@ -123727,8 +119108,8 @@
         <parameter type-id='d504f73d' name='nb' filepath='mm/oom_kill.c' line='1075' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_pernet_device' mangled-name='register_pernet_device' filepath='include/net/net_namespace.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_pernet_device'>
-        <parameter type-id='d6907f4c'/>
+      <function-decl name='register_pernet_device' mangled-name='register_pernet_device' filepath='net/core/net_namespace.c' line='1322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_pernet_device'>
+        <parameter type-id='d6907f4c' name='ops' filepath='net/core/net_namespace.c' line='1322' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='register_pernet_subsys' mangled-name='register_pernet_subsys' filepath='net/core/net_namespace.c' line='1276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_pernet_subsys'>
@@ -123747,12 +119128,12 @@
         <parameter type-id='d504f73d' name='nb' filepath='kernel/reboot.c' line='183' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_shrinker' mangled-name='register_shrinker' filepath='include/linux/shrinker.h' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_shrinker'>
-        <parameter type-id='4be14597'/>
+      <function-decl name='register_shrinker' mangled-name='register_shrinker' filepath='mm/vmscan.c' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_shrinker'>
+        <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='410' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_syscore_ops' mangled-name='register_syscore_ops' filepath='include/linux/syscore_ops.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_syscore_ops'>
-        <parameter type-id='cbd24a98'/>
+      <function-decl name='register_syscore_ops' mangled-name='register_syscore_ops' filepath='drivers/base/syscore.c' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_syscore_ops'>
+        <parameter type-id='cbd24a98' name='ops' filepath='drivers/base/syscore.c' line='22' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='register_sysctl' mangled-name='register_sysctl' filepath='fs/proc/proc_sysctl.c' line='1376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_sysctl'>
@@ -123768,21 +119149,21 @@
         <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='344' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_virtio_driver' mangled-name='register_virtio_driver' filepath='include/linux/virtio.h' line='189' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_virtio_driver'>
-        <parameter type-id='f350dc99'/>
+      <function-decl name='register_virtio_driver' mangled-name='register_virtio_driver' filepath='drivers/virtio/virtio.c' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_virtio_driver'>
+        <parameter type-id='f350dc99' name='driver' filepath='drivers/virtio/virtio.c' line='320' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='register_vmap_purge_notifier' mangled-name='register_vmap_purge_notifier' filepath='mm/vmalloc.c' line='1270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_vmap_purge_notifier'>
         <parameter type-id='d504f73d' name='nb' filepath='mm/vmalloc.c' line='1270' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regmap_add_irq_chip' mangled-name='regmap_add_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_add_irq_chip'>
-        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1'/>
-        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1'/>
-        <parameter type-id='95e97e5e' name='irq_flags' filepath='drivers/base/regmap/regmap-irq.c' line='862' column='1'/>
-        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/base/regmap/regmap-irq.c' line='863' column='1'/>
-        <parameter type-id='78965926' name='chip' filepath='drivers/base/regmap/regmap-irq.c' line='863' column='1'/>
-        <parameter type-id='a731d0ec' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='864' column='1'/>
+      <function-decl name='regmap_add_irq_chip' mangled-name='regmap_add_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='854' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_add_irq_chip'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap-irq.c' line='854' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='854' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_flags' filepath='drivers/base/regmap/regmap-irq.c' line='854' column='1'/>
+        <parameter type-id='95e97e5e' name='irq_base' filepath='drivers/base/regmap/regmap-irq.c' line='855' column='1'/>
+        <parameter type-id='78965926' name='chip' filepath='drivers/base/regmap/regmap-irq.c' line='855' column='1'/>
+        <parameter type-id='a731d0ec' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='856' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regmap_async_complete' mangled-name='regmap_async_complete' filepath='drivers/base/regmap/regmap.c' line='3153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_async_complete'>
@@ -123803,9 +119184,9 @@
         <parameter type-id='b59d7dce' name='val_count' filepath='drivers/base/regmap/regmap.c' line='2206' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regmap_del_irq_chip' mangled-name='regmap_del_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_del_irq_chip'>
-        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='879' column='1'/>
-        <parameter type-id='a2782ece' name='d' filepath='drivers/base/regmap/regmap-irq.c' line='879' column='1'/>
+      <function-decl name='regmap_del_irq_chip' mangled-name='regmap_del_irq_chip' filepath='drivers/base/regmap/regmap-irq.c' line='871' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_del_irq_chip'>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='871' column='1'/>
+        <parameter type-id='a2782ece' name='d' filepath='drivers/base/regmap/regmap-irq.c' line='871' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='regmap_exit' mangled-name='regmap_exit' filepath='drivers/base/regmap/regmap.c' line='1476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_exit'>
@@ -123830,13 +119211,13 @@
         <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='1549' column='1'/>
         <return type-id='fa0b179b'/>
       </function-decl>
-      <function-decl name='regmap_irq_get_domain' mangled-name='regmap_irq_get_domain' filepath='drivers/base/regmap/regmap-irq.c' line='1073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_irq_get_domain'>
-        <parameter type-id='a2782ece' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1073' column='1'/>
+      <function-decl name='regmap_irq_get_domain' mangled-name='regmap_irq_get_domain' filepath='drivers/base/regmap/regmap-irq.c' line='1065' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_irq_get_domain'>
+        <parameter type-id='a2782ece' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1065' column='1'/>
         <return type-id='7544e824'/>
       </function-decl>
-      <function-decl name='regmap_irq_get_virq' mangled-name='regmap_irq_get_virq' filepath='drivers/base/regmap/regmap-irq.c' line='1053' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_irq_get_virq'>
-        <parameter type-id='a2782ece' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1053' column='1'/>
-        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='1053' column='1'/>
+      <function-decl name='regmap_irq_get_virq' mangled-name='regmap_irq_get_virq' filepath='drivers/base/regmap/regmap-irq.c' line='1045' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_irq_get_virq'>
+        <parameter type-id='a2782ece' name='data' filepath='drivers/base/regmap/regmap-irq.c' line='1045' column='1'/>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/base/regmap/regmap-irq.c' line='1045' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regmap_multi_reg_write' mangled-name='regmap_multi_reg_write' filepath='drivers/base/regmap/regmap.c' line='2512' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_multi_reg_write'>
@@ -123872,10 +119253,10 @@
         <parameter type-id='b59d7dce' name='val_len' filepath='drivers/base/regmap/regmap.c' line='2590' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regmap_read' mangled-name='regmap_read' filepath='include/linux/regmap.h' line='1064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_read'>
-        <parameter type-id='29af9a71'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='807869d3'/>
+      <function-decl name='regmap_read' mangled-name='regmap_read' filepath='drivers/base/regmap/regmap.c' line='2714' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_read'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='2714' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='2714' column='1'/>
+        <parameter type-id='807869d3' name='val' filepath='drivers/base/regmap/regmap.c' line='2714' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regmap_register_patch' mangled-name='regmap_register_patch' filepath='drivers/base/regmap/regmap.c' line='3194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_register_patch'>
@@ -123884,30 +119265,30 @@
         <parameter type-id='95e97e5e' name='num_regs' filepath='drivers/base/regmap/regmap.c' line='3195' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regmap_update_bits_base' mangled-name='regmap_update_bits_base' filepath='include/linux/regmap.h' line='1071' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_update_bits_base'>
-        <parameter type-id='29af9a71'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='d8e6b335'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='regmap_update_bits_base' mangled-name='regmap_update_bits_base' filepath='drivers/base/regmap/regmap.c' line='3069' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_update_bits_base'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='3069' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='3069' column='1'/>
+        <parameter type-id='f0981eeb' name='mask' filepath='drivers/base/regmap/regmap.c' line='3070' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='drivers/base/regmap/regmap.c' line='3070' column='1'/>
+        <parameter type-id='d8e6b335' name='change' filepath='drivers/base/regmap/regmap.c' line='3071' column='1'/>
+        <parameter type-id='b50a4934' name='async' filepath='drivers/base/regmap/regmap.c' line='3071' column='1'/>
+        <parameter type-id='b50a4934' name='force' filepath='drivers/base/regmap/regmap.c' line='3071' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regmap_write' mangled-name='regmap_write' filepath='include/linux/regmap.h' line='1049' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_write'>
-        <parameter type-id='29af9a71'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='regmap_write' mangled-name='regmap_write' filepath='drivers/base/regmap/regmap.c' line='1946' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regmap_write'>
+        <parameter type-id='29af9a71' name='map' filepath='drivers/base/regmap/regmap.c' line='1946' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='drivers/base/regmap/regmap.c' line='1946' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='drivers/base/regmap/regmap.c' line='1946' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regulator_bulk_disable' mangled-name='regulator_bulk_disable' filepath='include/linux/regulator/consumer.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_disable'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='776946b4'/>
+      <function-decl name='regulator_bulk_disable' mangled-name='regulator_bulk_disable' filepath='drivers/regulator/core.c' line='4689' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_disable'>
+        <parameter type-id='95e97e5e' name='num_consumers' filepath='drivers/regulator/core.c' line='4689' column='1'/>
+        <parameter type-id='776946b4' name='consumers' filepath='drivers/regulator/core.c' line='4690' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regulator_bulk_enable' mangled-name='regulator_bulk_enable' filepath='include/linux/regulator/consumer.h' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_enable'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='776946b4'/>
+      <function-decl name='regulator_bulk_enable' mangled-name='regulator_bulk_enable' filepath='drivers/regulator/core.c' line='4640' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_enable'>
+        <parameter type-id='95e97e5e' name='num_consumers' filepath='drivers/regulator/core.c' line='4640' column='1'/>
+        <parameter type-id='776946b4' name='consumers' filepath='drivers/regulator/core.c' line='4641' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regulator_bulk_get' mangled-name='regulator_bulk_get' filepath='drivers/regulator/core.c' line='4585' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_bulk_get'>
@@ -123920,16 +119301,16 @@
         <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='3046' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regulator_disable' mangled-name='regulator_disable' filepath='include/linux/regulator/consumer.h' line='225' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_disable'>
-        <parameter type-id='850c13f6'/>
+      <function-decl name='regulator_disable' mangled-name='regulator_disable' filepath='drivers/regulator/core.c' line='2816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_disable'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='2816' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regulator_disable_regmap' mangled-name='regulator_disable_regmap' filepath='drivers/regulator/helpers.c' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_disable_regmap'>
         <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='85' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regulator_enable' mangled-name='regulator_enable' filepath='include/linux/regulator/consumer.h' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_enable'>
-        <parameter type-id='850c13f6'/>
+      <function-decl name='regulator_enable' mangled-name='regulator_enable' filepath='drivers/regulator/core.c' line='2706' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_enable'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='2706' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regulator_enable_regmap' mangled-name='regulator_enable_regmap' filepath='drivers/regulator/helpers.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_enable_regmap'>
@@ -123946,8 +119327,8 @@
         <parameter type-id='80f4b756' name='id' filepath='drivers/regulator/core.c' line='2109' column='1'/>
         <return type-id='850c13f6'/>
       </function-decl>
-      <function-decl name='regulator_get_voltage' mangled-name='regulator_get_voltage' filepath='include/linux/regulator/consumer.h' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get_voltage'>
-        <parameter type-id='850c13f6'/>
+      <function-decl name='regulator_get_voltage' mangled-name='regulator_get_voltage' filepath='drivers/regulator/core.c' line='4215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get_voltage'>
+        <parameter type-id='850c13f6' name='regulator' filepath='drivers/regulator/core.c' line='4215' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regulator_get_voltage_sel_regmap' mangled-name='regulator_get_voltage_sel_regmap' filepath='drivers/regulator/helpers.c' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_get_voltage_sel_regmap'>
@@ -123989,10 +119370,10 @@
         <parameter type-id='95e97e5e' name='max_uV' filepath='drivers/regulator/helpers.c' line='331' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='regulator_map_voltage_linear' mangled-name='regulator_map_voltage_linear' filepath='include/linux/regulator/driver.h' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_map_voltage_linear'>
-        <parameter type-id='43c38462'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='regulator_map_voltage_linear' mangled-name='regulator_map_voltage_linear' filepath='drivers/regulator/helpers.c' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_map_voltage_linear'>
+        <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/helpers.c' line='361' column='1'/>
+        <parameter type-id='95e97e5e' name='min_uV' filepath='drivers/regulator/helpers.c' line='362' column='1'/>
+        <parameter type-id='95e97e5e' name='max_uV' filepath='drivers/regulator/helpers.c' line='362' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='regulator_notifier_call_chain' mangled-name='regulator_notifier_call_chain' filepath='drivers/regulator/core.c' line='4779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='regulator_notifier_call_chain'>
@@ -124045,40 +119426,40 @@
         <parameter type-id='c24e05b4' name='rd' filepath='net/wireless/reg.c' line='3965' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='release_firmware' mangled-name='release_firmware' filepath='include/linux/firmware.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='release_firmware'>
-        <parameter type-id='fce0537d'/>
+      <function-decl name='release_firmware' mangled-name='release_firmware' filepath='drivers/base/firmware_loader/main.c' line='1050' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='release_firmware'>
+        <parameter type-id='fce0537d' name='fw' filepath='drivers/base/firmware_loader/main.c' line='1050' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='release_sock' mangled-name='release_sock' filepath='include/net/sock.h' line='1600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='release_sock'>
-        <parameter type-id='f772df6d'/>
+      <function-decl name='release_sock' mangled-name='release_sock' filepath='net/core/sock.c' line='3084' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='release_sock'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='3084' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='remap_pfn_range' mangled-name='remap_pfn_range' filepath='include/linux/mm.h' line='2899' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_pfn_range'>
-        <parameter type-id='2ae08426'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='2e2dcbd3'/>
+      <function-decl name='remap_pfn_range' mangled-name='remap_pfn_range' filepath='mm/memory.c' line='2311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_pfn_range'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2311' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2311' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2312' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='mm/memory.c' line='2312' column='1'/>
+        <parameter type-id='2e2dcbd3' name='prot' filepath='mm/memory.c' line='2312' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='remap_vmalloc_range' mangled-name='remap_vmalloc_range' filepath='include/linux/vmalloc.h' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_vmalloc_range'>
-        <parameter type-id='2ae08426'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='remap_vmalloc_range' mangled-name='remap_vmalloc_range' filepath='mm/vmalloc.c' line='3151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_vmalloc_range'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/vmalloc.c' line='3151' column='1'/>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/vmalloc.c' line='3151' column='1'/>
+        <parameter type-id='7359adad' name='pgoff' filepath='mm/vmalloc.c' line='3152' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='remove_cpu' mangled-name='remove_cpu' filepath='kernel/cpu.c' line='1151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_cpu'>
         <parameter type-id='f0981eeb' name='cpu' filepath='kernel/cpu.c' line='1151' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='remove_proc_entry' mangled-name='remove_proc_entry' filepath='include/linux/proc_fs.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_proc_entry'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='d077e928'/>
+      <function-decl name='remove_proc_entry' mangled-name='remove_proc_entry' filepath='fs/proc/generic.c' line='688' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_proc_entry'>
+        <parameter type-id='80f4b756' name='name' filepath='fs/proc/generic.c' line='688' column='1'/>
+        <parameter type-id='d077e928' name='parent' filepath='fs/proc/generic.c' line='688' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='remove_wait_queue' mangled-name='remove_wait_queue' filepath='include/linux/wait.h' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_wait_queue'>
-        <parameter type-id='3f8b2ed3'/>
-        <parameter type-id='db9d03e3'/>
+      <function-decl name='remove_wait_queue' mangled-name='remove_wait_queue' filepath='kernel/sched/wait.c' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remove_wait_queue'>
+        <parameter type-id='3f8b2ed3' name='wq_head' filepath='kernel/sched/wait.c' line='41' column='1'/>
+        <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='41' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='request_firmware' mangled-name='request_firmware' filepath='drivers/base/firmware_loader/main.c' line='869' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_firmware'>
@@ -124111,22 +119492,22 @@
         <parameter type-id='c8e4e392' name='cont' filepath='drivers/base/firmware_loader/main.c' line='1115' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='request_threaded_irq' mangled-name='request_threaded_irq' filepath='include/linux/interrupt.h' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_threaded_irq'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='29591c9a'/>
-        <parameter type-id='29591c9a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='request_threaded_irq' mangled-name='request_threaded_irq' filepath='kernel/irq/manage.c' line='2008' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='request_threaded_irq'>
+        <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='2008' column='1'/>
+        <parameter type-id='29591c9a' name='handler' filepath='kernel/irq/manage.c' line='2008' column='1'/>
+        <parameter type-id='29591c9a' name='thread_fn' filepath='kernel/irq/manage.c' line='2009' column='1'/>
+        <parameter type-id='7359adad' name='irqflags' filepath='kernel/irq/manage.c' line='2009' column='1'/>
+        <parameter type-id='80f4b756' name='devname' filepath='kernel/irq/manage.c' line='2010' column='1'/>
+        <parameter type-id='eaa32e2f' name='dev_id' filepath='kernel/irq/manage.c' line='2010' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='reservation_ww_class' type-id='f0dc3c34' mangled-name='reservation_ww_class' visibility='default' filepath='drivers/dma-buf/dma-resv.c' line='52' column='1' elf-symbol-id='reservation_ww_class'/>
-      <function-decl name='reset_control_assert' mangled-name='reset_control_assert' filepath='include/linux/reset.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_assert'>
-        <parameter type-id='9f9b8114'/>
+      <function-decl name='reset_control_assert' mangled-name='reset_control_assert' filepath='drivers/reset/core.c' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_assert'>
+        <parameter type-id='9f9b8114' name='rstc' filepath='drivers/reset/core.c' line='344' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='reset_control_deassert' mangled-name='reset_control_deassert' filepath='include/linux/reset.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_deassert'>
-        <parameter type-id='9f9b8114'/>
+      <function-decl name='reset_control_deassert' mangled-name='reset_control_deassert' filepath='drivers/reset/core.c' line='402' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_deassert'>
+        <parameter type-id='9f9b8114' name='rstc' filepath='drivers/reset/core.c' line='402' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='reset_control_reset' mangled-name='reset_control_reset' filepath='drivers/reset/core.c' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='reset_control_reset'>
@@ -124147,16 +119528,16 @@
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='rfc1042_header' type-id='51f2d827' mangled-name='rfc1042_header' visibility='default' filepath='net/wireless/util.c' line='2073' column='1' elf-symbol-id='rfc1042_header'/>
-      <function-decl name='rfkill_alloc' mangled-name='rfkill_alloc' filepath='include/linux/rfkill.h' line='79' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_alloc'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='c3f0f7d9'/>
-        <parameter type-id='6a6a70e7'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='rfkill_alloc' mangled-name='rfkill_alloc' filepath='net/rfkill/core.c' line='922' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_alloc'>
+        <parameter type-id='80f4b756' name='name' filepath='net/rfkill/core.c' line='922' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='net/rfkill/core.c' line='923' column='1'/>
+        <parameter type-id='c3f0f7d9' name='type' filepath='net/rfkill/core.c' line='924' column='1'/>
+        <parameter type-id='6a6a70e7' name='ops' filepath='net/rfkill/core.c' line='925' column='1'/>
+        <parameter type-id='eaa32e2f' name='ops_data' filepath='net/rfkill/core.c' line='926' column='1'/>
         <return type-id='c5b94c75'/>
       </function-decl>
-      <function-decl name='rfkill_destroy' mangled-name='rfkill_destroy' filepath='include/linux/rfkill.h' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_destroy'>
-        <parameter type-id='c5b94c75'/>
+      <function-decl name='rfkill_destroy' mangled-name='rfkill_destroy' filepath='net/rfkill/core.c' line='1099' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_destroy'>
+        <parameter type-id='c5b94c75' name='rfkill' filepath='net/rfkill/core.c' line='1099' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='rfkill_find_type' mangled-name='rfkill_find_type' filepath='net/rfkill/core.c' line='653' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_find_type'>
@@ -124168,38 +119549,38 @@
         <parameter type-id='b50a4934' name='blocked' filepath='net/rfkill/core.c' line='592' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='rfkill_register' mangled-name='rfkill_register' filepath='include/linux/rfkill.h' line='100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_register'>
-        <parameter type-id='c5b94c75'/>
+      <function-decl name='rfkill_register' mangled-name='rfkill_register' filepath='net/rfkill/core.c' line='1005' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_register'>
+        <parameter type-id='c5b94c75' name='rfkill' filepath='net/rfkill/core.c' line='1005' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='rfkill_unregister' mangled-name='rfkill_unregister' filepath='include/linux/rfkill.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_unregister'>
-        <parameter type-id='c5b94c75'/>
+      <function-decl name='rfkill_unregister' mangled-name='rfkill_unregister' filepath='net/rfkill/core.c' line='1075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rfkill_unregister'>
+        <parameter type-id='c5b94c75' name='rfkill' filepath='net/rfkill/core.c' line='1075' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='rhashtable_destroy' mangled-name='rhashtable_destroy' filepath='lib/rhashtable.c' line='1168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_destroy'>
         <parameter type-id='e6726ce3' name='ht' filepath='lib/rhashtable.c' line='1168' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='rhashtable_init' mangled-name='rhashtable_init' filepath='include/linux/rhashtable-types.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_init'>
-        <parameter type-id='e6726ce3'/>
-        <parameter type-id='44dbf2cd'/>
+      <function-decl name='rhashtable_init' mangled-name='rhashtable_init' filepath='lib/rhashtable.c' line='1015' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_init'>
+        <parameter type-id='e6726ce3' name='ht' filepath='lib/rhashtable.c' line='1015' column='1'/>
+        <parameter type-id='44dbf2cd' name='params' filepath='lib/rhashtable.c' line='1016' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='rhashtable_insert_slow' mangled-name='rhashtable_insert_slow' filepath='include/linux/rhashtable.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_insert_slow'>
-        <parameter type-id='e6726ce3'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='3cc8739a'/>
+      <function-decl name='rhashtable_insert_slow' mangled-name='rhashtable_insert_slow' filepath='lib/rhashtable.c' line='629' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rhashtable_insert_slow'>
+        <parameter type-id='e6726ce3' name='ht' filepath='lib/rhashtable.c' line='629' column='1'/>
+        <parameter type-id='eaa32e2f' name='key' filepath='lib/rhashtable.c' line='629' column='1'/>
+        <parameter type-id='3cc8739a' name='obj' filepath='lib/rhashtable.c' line='630' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='rht_bucket_nested' mangled-name='rht_bucket_nested' filepath='include/linux/rhashtable.h' line='264' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rht_bucket_nested'>
-        <parameter type-id='6a4a6779'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='rht_bucket_nested' mangled-name='rht_bucket_nested' filepath='lib/rhashtable.c' line='1203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rht_bucket_nested'>
+        <parameter type-id='6a4a6779' name='tbl' filepath='lib/rhashtable.c' line='1204' column='1'/>
+        <parameter type-id='f0981eeb' name='hash' filepath='lib/rhashtable.c' line='1204' column='1'/>
         <return type-id='33f7eff4'/>
       </function-decl>
-      <function-decl name='rht_bucket_nested_insert' mangled-name='rht_bucket_nested_insert' filepath='include/linux/rhashtable.h' line='268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rht_bucket_nested_insert'>
-        <parameter type-id='e6726ce3'/>
-        <parameter type-id='35e7a722'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='rht_bucket_nested_insert' mangled-name='rht_bucket_nested_insert' filepath='lib/rhashtable.c' line='1214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rht_bucket_nested_insert'>
+        <parameter type-id='e6726ce3' name='ht' filepath='lib/rhashtable.c' line='1215' column='1'/>
+        <parameter type-id='35e7a722' name='tbl' filepath='lib/rhashtable.c' line='1215' column='1'/>
+        <parameter type-id='f0981eeb' name='hash' filepath='lib/rhashtable.c' line='1215' column='1'/>
         <return type-id='33f7eff4'/>
       </function-decl>
       <function-decl name='root_device_unregister' mangled-name='root_device_unregister' filepath='drivers/base/core.c' line='3856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='root_device_unregister'>
@@ -124309,17 +119690,17 @@
         <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1602' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='rtc_class_close' mangled-name='rtc_class_close' filepath='include/linux/rtc.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_class_close'>
-        <parameter type-id='5992ae83'/>
+      <function-decl name='rtc_class_close' mangled-name='rtc_class_close' filepath='drivers/rtc/interface.c' line='717' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_class_close'>
+        <parameter type-id='5992ae83' name='rtc' filepath='drivers/rtc/interface.c' line='717' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='rtc_class_open' mangled-name='rtc_class_open' filepath='include/linux/rtc.h' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_class_open'>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='rtc_class_open' mangled-name='rtc_class_open' filepath='drivers/rtc/interface.c' line='697' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_class_open'>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/rtc/interface.c' line='697' column='1'/>
         <return type-id='5992ae83'/>
       </function-decl>
-      <function-decl name='rtc_read_time' mangled-name='rtc_read_time' filepath='include/linux/rtc.h' line='171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_read_time'>
-        <parameter type-id='5992ae83'/>
-        <parameter type-id='2b8e7a42'/>
+      <function-decl name='rtc_read_time' mangled-name='rtc_read_time' filepath='drivers/rtc/interface.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_read_time'>
+        <parameter type-id='5992ae83' name='rtc' filepath='drivers/rtc/interface.c' line='110' column='1'/>
+        <parameter type-id='2b8e7a42' name='tm' filepath='drivers/rtc/interface.c' line='110' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='rtc_time64_to_tm' mangled-name='rtc_time64_to_tm' filepath='drivers/rtc/lib.c' line='49' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtc_time64_to_tm'>
@@ -124350,12 +119731,12 @@
       <function-decl name='rtnl_is_locked' mangled-name='rtnl_is_locked' filepath='net/core/rtnetlink.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_is_locked'>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='rtnl_link_register' mangled-name='rtnl_link_register' filepath='include/net/rtnetlink.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_link_register'>
-        <parameter type-id='959ab461'/>
+      <function-decl name='rtnl_link_register' mangled-name='rtnl_link_register' filepath='net/core/rtnetlink.c' line='396' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_link_register'>
+        <parameter type-id='959ab461' name='ops' filepath='net/core/rtnetlink.c' line='396' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='rtnl_link_unregister' mangled-name='rtnl_link_unregister' filepath='include/net/rtnetlink.h' line='121' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_link_unregister'>
-        <parameter type-id='959ab461'/>
+      <function-decl name='rtnl_link_unregister' mangled-name='rtnl_link_unregister' filepath='net/core/rtnetlink.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_link_unregister'>
+        <parameter type-id='959ab461' name='ops' filepath='net/core/rtnetlink.c' line='478' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='rtnl_lock' mangled-name='rtnl_lock' filepath='net/core/rtnetlink.c' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rtnl_lock'>
@@ -124373,10 +119754,10 @@
         <parameter type-id='95e97e5e' name='on' filepath='drivers/usb/host/pci-quirks.c' line='194' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='scatterwalk_ffwd' mangled-name='scatterwalk_ffwd' filepath='include/crypto/scatterwalk.h' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scatterwalk_ffwd'>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='scatterwalk_ffwd' mangled-name='scatterwalk_ffwd' filepath='crypto/scatterwalk.c' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scatterwalk_ffwd'>
+        <parameter type-id='bf3ef905' name='dst' filepath='crypto/scatterwalk.c' line='72' column='1'/>
+        <parameter type-id='bf3ef905' name='src' filepath='crypto/scatterwalk.c' line='73' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='crypto/scatterwalk.c' line='74' column='1'/>
         <return type-id='bf3ef905'/>
       </function-decl>
       <function-decl name='scatterwalk_map_and_copy' mangled-name='scatterwalk_map_and_copy' filepath='crypto/scatterwalk.c' line='55' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scatterwalk_map_and_copy'>
@@ -124387,7 +119768,7 @@
         <parameter type-id='95e97e5e' name='out' filepath='crypto/scatterwalk.c' line='56' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sched_clock' mangled-name='sched_clock' filepath='include/linux/sched/clock.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_clock'>
+      <function-decl name='sched_clock' mangled-name='sched_clock' filepath='kernel/time/sched_clock.c' line='83' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_clock'>
         <return type-id='0d77e947'/>
       </function-decl>
       <var-decl name='sched_feat_keys' type-id='9cc39ce1' mangled-name='sched_feat_keys' visibility='default' filepath='kernel/sched/debug.c' line='80' column='1' elf-symbol-id='sched_feat_keys'/>
@@ -124406,10 +119787,10 @@
         <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5760' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sched_setscheduler_nocheck' mangled-name='sched_setscheduler_nocheck' filepath='include/linux/sched.h' line='1739' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler_nocheck'>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='36fca399'/>
+      <function-decl name='sched_setscheduler_nocheck' mangled-name='sched_setscheduler_nocheck' filepath='kernel/sched/core.c' line='5791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler_nocheck'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5791' column='1'/>
+        <parameter type-id='95e97e5e' name='policy' filepath='kernel/sched/core.c' line='5791' column='1'/>
+        <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5792' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='sched_show_task' mangled-name='sched_show_task' filepath='kernel/sched/core.c' line='6690' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_show_task'>
@@ -124451,25 +119832,25 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='sched_uclamp_used' type-id='237c0d27' mangled-name='sched_uclamp_used' visibility='default' filepath='kernel/sched/core.c' line='966' column='1' elf-symbol-id='sched_uclamp_used'/>
-      <function-decl name='schedule' mangled-name='schedule' filepath='include/linux/sched.h' line='226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule'>
+      <function-decl name='schedule' mangled-name='schedule' filepath='kernel/sched/core.c' line='4867' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='schedule_timeout' mangled-name='schedule_timeout' filepath='include/linux/sched.h' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout'>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='schedule_timeout' mangled-name='schedule_timeout' filepath='kernel/time/timer.c' line='1841' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout'>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/time/timer.c' line='1841' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='schedule_timeout_interruptible' mangled-name='schedule_timeout_interruptible' filepath='include/linux/sched.h' line='222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout_interruptible'>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='schedule_timeout_interruptible' mangled-name='schedule_timeout_interruptible' filepath='kernel/time/timer.c' line='1897' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout_interruptible'>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/time/timer.c' line='1897' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='schedule_timeout_uninterruptible' mangled-name='schedule_timeout_uninterruptible' filepath='include/linux/sched.h' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout_uninterruptible'>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='schedule_timeout_uninterruptible' mangled-name='schedule_timeout_uninterruptible' filepath='kernel/time/timer.c' line='1911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout_uninterruptible'>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/time/timer.c' line='1911' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='scnprintf' mangled-name='scnprintf' filepath='include/linux/kernel.h' line='483' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scnprintf'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='scnprintf' mangled-name='scnprintf' filepath='lib/vsprintf.c' line='2827' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scnprintf'>
+        <parameter type-id='26a90f95' name='buf' filepath='lib/vsprintf.c' line='2827' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/vsprintf.c' line='2827' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/vsprintf.c' line='2827' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
@@ -124479,8 +119860,8 @@
         <parameter type-id='fa0b179b' name='dma_dev' filepath='drivers/scsi/hosts.c' line='209' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='scsi_autopm_get_device' mangled-name='scsi_autopm_get_device' filepath='include/scsi/scsi_device.h' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_autopm_get_device'>
-        <parameter type-id='eb572b74'/>
+      <function-decl name='scsi_autopm_get_device' mangled-name='scsi_autopm_get_device' filepath='drivers/scsi/scsi_pm.c' line='216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_autopm_get_device'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi_pm.c' line='216' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='scsi_autopm_put_device' mangled-name='scsi_autopm_put_device' filepath='drivers/scsi/scsi_pm.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_autopm_put_device'>
@@ -124491,8 +119872,8 @@
         <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/scsi_lib.c' line='1973' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='scsi_block_when_processing_errors' mangled-name='scsi_block_when_processing_errors' filepath='include/scsi/scsi_eh.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_block_when_processing_errors'>
-        <parameter type-id='eb572b74'/>
+      <function-decl name='scsi_block_when_processing_errors' mangled-name='scsi_block_when_processing_errors' filepath='drivers/scsi/scsi_error.c' line='342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_block_when_processing_errors'>
+        <parameter type-id='eb572b74' name='sdev' filepath='drivers/scsi/scsi_error.c' line='342' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='scsi_build_sense_buffer' mangled-name='scsi_build_sense_buffer' filepath='drivers/scsi/scsi_common.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_build_sense_buffer'>
@@ -124544,10 +119925,10 @@
         <parameter type-id='b50a4934' name='ndelay' filepath='drivers/scsi/scsi_ioctl.c' line='307' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='scsi_normalize_sense' mangled-name='scsi_normalize_sense' filepath='include/scsi/scsi_common.h' line='69' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_normalize_sense'>
-        <parameter type-id='bbaf3419'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='991b8213'/>
+      <function-decl name='scsi_normalize_sense' mangled-name='scsi_normalize_sense' filepath='drivers/scsi/scsi_common.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_normalize_sense'>
+        <parameter type-id='bbaf3419' name='sense_buffer' filepath='drivers/scsi/scsi_common.c' line='138' column='1'/>
+        <parameter type-id='95e97e5e' name='sb_len' filepath='drivers/scsi/scsi_common.c' line='138' column='1'/>
+        <parameter type-id='991b8213' name='sshdr' filepath='drivers/scsi/scsi_common.c' line='139' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='scsi_register_interface' mangled-name='scsi_register_interface' filepath='drivers/scsi/scsi_sysfs.c' line='1582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='scsi_register_interface'>
@@ -124572,11 +119953,11 @@
         <parameter type-id='a970a64c' name='shost' filepath='drivers/scsi/scsi_lib.c' line='1989' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sdev_prefix_printk' mangled-name='sdev_prefix_printk' filepath='include/scsi/scsi_device.h' line='266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdev_prefix_printk'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='0f176ec1'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='sdev_prefix_printk' mangled-name='sdev_prefix_printk' filepath='drivers/scsi/scsi_logging.c' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdev_prefix_printk'>
+        <parameter type-id='80f4b756' name='level' filepath='drivers/scsi/scsi_logging.c' line='53' column='1'/>
+        <parameter type-id='0f176ec1' name='sdev' filepath='drivers/scsi/scsi_logging.c' line='53' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/scsi/scsi_logging.c' line='54' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='drivers/scsi/scsi_logging.c' line='54' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
@@ -124648,16 +120029,16 @@
         <parameter type-id='2661e0d9' name='host' filepath='drivers/mmc/host/sdhci.c' line='4134' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sdio_claim_host' mangled-name='sdio_claim_host' filepath='include/linux/mmc/sdio_func.h' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_claim_host'>
-        <parameter type-id='c1880945'/>
+      <function-decl name='sdio_claim_host' mangled-name='sdio_claim_host' filepath='drivers/mmc/core/sdio_io.c' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_claim_host'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='27' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sdio_disable_func' mangled-name='sdio_disable_func' filepath='include/linux/mmc/sdio_func.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_disable_func'>
-        <parameter type-id='c1880945'/>
+      <function-decl name='sdio_disable_func' mangled-name='sdio_disable_func' filepath='drivers/mmc/core/sdio_io.c' line='110' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_disable_func'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='110' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sdio_enable_func' mangled-name='sdio_enable_func' filepath='include/linux/mmc/sdio_func.h' line='130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_enable_func'>
-        <parameter type-id='c1880945'/>
+      <function-decl name='sdio_enable_func' mangled-name='sdio_enable_func' filepath='drivers/mmc/core/sdio_io.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_enable_func'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='59' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='sdio_f0_readb' mangled-name='sdio_f0_readb' filepath='drivers/mmc/core/sdio_io.c' line='631' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_f0_readb'>
@@ -124698,17 +120079,17 @@
         <parameter type-id='95e97e5e' name='count' filepath='drivers/mmc/core/sdio_io.c' line='503' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sdio_register_driver' mangled-name='sdio_register_driver' filepath='include/linux/mmc/sdio_func.h' line='109' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_register_driver'>
-        <parameter type-id='710bea3d'/>
+      <function-decl name='sdio_register_driver' mangled-name='sdio_register_driver' filepath='drivers/mmc/core/sdio_bus.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_register_driver'>
+        <parameter type-id='710bea3d' name='drv' filepath='drivers/mmc/core/sdio_bus.c' line='272' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sdio_release_host' mangled-name='sdio_release_host' filepath='include/linux/mmc/sdio_func.h' line='128' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_release_host'>
-        <parameter type-id='c1880945'/>
+      <function-decl name='sdio_release_host' mangled-name='sdio_release_host' filepath='drivers/mmc/core/sdio_io.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_release_host'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='43' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sdio_set_block_size' mangled-name='sdio_set_block_size' filepath='include/linux/mmc/sdio_func.h' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_set_block_size'>
-        <parameter type-id='c1880945'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='sdio_set_block_size' mangled-name='sdio_set_block_size' filepath='drivers/mmc/core/sdio_io.c' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_set_block_size'>
+        <parameter type-id='c1880945' name='func' filepath='drivers/mmc/core/sdio_io.c' line='159' column='1'/>
+        <parameter type-id='f0981eeb' name='blksz' filepath='drivers/mmc/core/sdio_io.c' line='159' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='sdio_set_host_pm_flags' mangled-name='sdio_set_host_pm_flags' filepath='drivers/mmc/core/sdio_io.c' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sdio_set_host_pm_flags'>
@@ -124748,10 +120129,10 @@
         <parameter type-id='27675065' name='dentry' filepath='security/inode.c' line='295' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='send_sig_info' mangled-name='send_sig_info' filepath='include/linux/sched/signal.h' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='send_sig_info'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='0effb5d0'/>
-        <parameter type-id='f23e2572'/>
+      <function-decl name='send_sig_info' mangled-name='send_sig_info' filepath='kernel/signal.c' line='1609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='send_sig_info'>
+        <parameter type-id='95e97e5e' name='sig' filepath='kernel/signal.c' line='1609' column='1'/>
+        <parameter type-id='0effb5d0' name='info' filepath='kernel/signal.c' line='1609' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/signal.c' line='1609' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='seq_hex_dump' mangled-name='seq_hex_dump' filepath='fs/seq_file.c' line='852' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_hex_dump'>
@@ -124765,31 +120146,31 @@
         <parameter type-id='b50a4934' name='ascii' filepath='fs/seq_file.c' line='854' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='seq_lseek' mangled-name='seq_lseek' filepath='include/linux/seq_file.h' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_lseek'>
-        <parameter type-id='77e79a4b'/>
-        <parameter type-id='69bf7bee'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='seq_lseek' mangled-name='seq_lseek' filepath='fs/seq_file.c' line='308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_lseek'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='308' column='1'/>
+        <parameter type-id='69bf7bee' name='offset' filepath='fs/seq_file.c' line='308' column='1'/>
+        <parameter type-id='95e97e5e' name='whence' filepath='fs/seq_file.c' line='308' column='1'/>
         <return type-id='69bf7bee'/>
       </function-decl>
-      <function-decl name='seq_open' mangled-name='seq_open' filepath='include/linux/seq_file.h' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_open'>
-        <parameter type-id='77e79a4b'/>
-        <parameter type-id='943a1b48'/>
+      <function-decl name='seq_open' mangled-name='seq_open' filepath='fs/seq_file.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_open'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='57' column='1'/>
+        <parameter type-id='943a1b48' name='op' filepath='fs/seq_file.c' line='57' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='seq_printf' mangled-name='seq_printf' filepath='include/linux/seq_file.h' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_printf'>
-        <parameter type-id='f8dc9def'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='seq_printf' mangled-name='seq_printf' filepath='fs/seq_file.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_printf'>
+        <parameter type-id='f8dc9def' name='m' filepath='fs/seq_file.c' line='408' column='1'/>
+        <parameter type-id='80f4b756' name='f' filepath='fs/seq_file.c' line='408' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='seq_putc' mangled-name='seq_putc' filepath='include/linux/seq_file.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_putc'>
-        <parameter type-id='f8dc9def'/>
-        <parameter type-id='a84c031d'/>
+      <function-decl name='seq_putc' mangled-name='seq_putc' filepath='fs/seq_file.c' line='652' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_putc'>
+        <parameter type-id='f8dc9def' name='m' filepath='fs/seq_file.c' line='652' column='1'/>
+        <parameter type-id='a84c031d' name='c' filepath='fs/seq_file.c' line='652' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='seq_puts' mangled-name='seq_puts' filepath='include/linux/seq_file.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_puts'>
-        <parameter type-id='f8dc9def'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='seq_puts' mangled-name='seq_puts' filepath='fs/seq_file.c' line='661' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_puts'>
+        <parameter type-id='f8dc9def' name='m' filepath='fs/seq_file.c' line='661' column='1'/>
+        <parameter type-id='80f4b756' name='s' filepath='fs/seq_file.c' line='661' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='seq_read' mangled-name='seq_read' filepath='fs/seq_file.c' line='151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_read'>
@@ -124799,26 +120180,26 @@
         <parameter type-id='b53e8dbb' name='ppos' filepath='fs/seq_file.c' line='151' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
-      <function-decl name='seq_release' mangled-name='seq_release' filepath='include/linux/seq_file.h' line='112' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_release'>
-        <parameter type-id='7e666abe'/>
-        <parameter type-id='77e79a4b'/>
+      <function-decl name='seq_release' mangled-name='seq_release' filepath='fs/seq_file.c' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_release'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/seq_file.c' line='352' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='352' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='seq_release_private' mangled-name='seq_release_private' filepath='include/linux/seq_file.h' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_release_private'>
-        <parameter type-id='7e666abe'/>
-        <parameter type-id='77e79a4b'/>
+      <function-decl name='seq_release_private' mangled-name='seq_release_private' filepath='fs/seq_file.c' line='609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_release_private'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/seq_file.c' line='609' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='609' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='seq_vprintf' mangled-name='seq_vprintf' filepath='include/linux/seq_file.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_vprintf'>
-        <parameter type-id='f8dc9def'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2aee9912'/>
+      <function-decl name='seq_vprintf' mangled-name='seq_vprintf' filepath='fs/seq_file.c' line='393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_vprintf'>
+        <parameter type-id='f8dc9def' name='m' filepath='fs/seq_file.c' line='393' column='1'/>
+        <parameter type-id='80f4b756' name='f' filepath='fs/seq_file.c' line='393' column='1'/>
+        <parameter type-id='2aee9912' name='args' filepath='fs/seq_file.c' line='393' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='seq_write' mangled-name='seq_write' filepath='include/linux/seq_file.h' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_write'>
-        <parameter type-id='f8dc9def'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='seq_write' mangled-name='seq_write' filepath='fs/seq_file.c' line='818' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='seq_write'>
+        <parameter type-id='f8dc9def' name='seq' filepath='fs/seq_file.c' line='818' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/seq_file.c' line='818' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='fs/seq_file.c' line='818' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='serdev_device_close' mangled-name='serdev_device_close' filepath='drivers/tty/serdev/core.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_close'>
@@ -124890,9 +120271,9 @@
         <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='705' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='set_blocksize' mangled-name='set_blocksize' filepath='include/linux/blkdev.h' line='2023' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_blocksize'>
-        <parameter type-id='b88dd945'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='set_blocksize' mangled-name='set_blocksize' filepath='fs/block_dev.c' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_blocksize'>
+        <parameter type-id='b88dd945' name='bdev' filepath='fs/block_dev.c' line='157' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='fs/block_dev.c' line='157' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='set_capacity_revalidate_and_notify' mangled-name='set_capacity_revalidate_and_notify' filepath='block/genhd.c' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_capacity_revalidate_and_notify'>
@@ -124901,9 +120282,9 @@
         <parameter type-id='b50a4934' name='update_bdev' filepath='block/genhd.c' line='53' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='set_cpus_allowed_ptr' mangled-name='set_cpus_allowed_ptr' filepath='include/linux/sched.h' line='1705' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_cpus_allowed_ptr'>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='5f8a1ac4'/>
+      <function-decl name='set_cpus_allowed_ptr' mangled-name='set_cpus_allowed_ptr' filepath='kernel/sched/core.c' line='2076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_cpus_allowed_ptr'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='2076' column='1'/>
+        <parameter type-id='5f8a1ac4' name='new_mask' filepath='kernel/sched/core.c' line='2076' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='set_disk_ro' mangled-name='set_disk_ro' filepath='block/genhd.c' line='1857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_disk_ro'>
@@ -124911,32 +120292,32 @@
         <parameter type-id='95e97e5e' name='flag' filepath='block/genhd.c' line='1857' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='set_freezable' mangled-name='set_freezable' filepath='include/linux/freezer.h' line='76' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_freezable'>
+      <function-decl name='set_freezable' mangled-name='set_freezable' filepath='kernel/freezer.c' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_freezable'>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='set_normalized_timespec64' mangled-name='set_normalized_timespec64' filepath='include/linux/time64.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_normalized_timespec64'>
-        <parameter type-id='4151733d'/>
-        <parameter type-id='1afd27ac'/>
-        <parameter type-id='9b7c55ef'/>
+      <function-decl name='set_normalized_timespec64' mangled-name='set_normalized_timespec64' filepath='kernel/time/time.c' line='478' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_normalized_timespec64'>
+        <parameter type-id='4151733d' name='ts' filepath='kernel/time/time.c' line='478' column='1'/>
+        <parameter type-id='1afd27ac' name='sec' filepath='kernel/time/time.c' line='478' column='1'/>
+        <parameter type-id='9b7c55ef' name='nsec' filepath='kernel/time/time.c' line='478' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='set_page_dirty' mangled-name='set_page_dirty' filepath='include/linux/mm.h' line='1968' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty'>
-        <parameter type-id='02f11ed4'/>
+      <function-decl name='set_page_dirty' mangled-name='set_page_dirty' filepath='mm/page-writeback.c' line='2563' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page-writeback.c' line='2563' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='set_page_dirty_lock' mangled-name='set_page_dirty_lock' filepath='include/linux/mm.h' line='1969' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty_lock'>
-        <parameter type-id='02f11ed4'/>
+      <function-decl name='set_page_dirty_lock' mangled-name='set_page_dirty_lock' filepath='mm/page-writeback.c' line='2606' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_page_dirty_lock'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page-writeback.c' line='2606' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='set_user_nice' mangled-name='set_user_nice' filepath='include/linux/sched.h' line='1720' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_user_nice'>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='set_user_nice' mangled-name='set_user_nice' filepath='kernel/sched/core.c' line='5236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_user_nice'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5236' column='1'/>
+        <parameter type-id='bd54fe1a' name='nice' filepath='kernel/sched/core.c' line='5236' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sg_alloc_table' mangled-name='sg_alloc_table' filepath='include/linux/scatterlist.h' line='293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_alloc_table'>
-        <parameter type-id='4adb0e6a'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='sg_alloc_table' mangled-name='sg_alloc_table' filepath='lib/scatterlist.c' line='355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_alloc_table'>
+        <parameter type-id='4adb0e6a' name='table' filepath='lib/scatterlist.c' line='355' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='355' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='lib/scatterlist.c' line='355' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='sg_alloc_table_from_pages' mangled-name='sg_alloc_table_from_pages' filepath='lib/scatterlist.c' line='545' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_alloc_table_from_pages'>
@@ -124957,52 +120338,52 @@
         <parameter type-id='b50a4934' name='to_buffer' filepath='lib/scatterlist.c' line='922' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
-      <function-decl name='sg_copy_from_buffer' mangled-name='sg_copy_from_buffer' filepath='include/linux/scatterlist.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_from_buffer'>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='sg_copy_from_buffer' mangled-name='sg_copy_from_buffer' filepath='lib/scatterlist.c' line='967' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_from_buffer'>
+        <parameter type-id='bf3ef905' name='sgl' filepath='lib/scatterlist.c' line='967' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='967' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/scatterlist.c' line='968' column='1'/>
+        <parameter type-id='b59d7dce' name='buflen' filepath='lib/scatterlist.c' line='968' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
-      <function-decl name='sg_copy_to_buffer' mangled-name='sg_copy_to_buffer' filepath='include/linux/scatterlist.h' line='319' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_to_buffer'>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='sg_copy_to_buffer' mangled-name='sg_copy_to_buffer' filepath='lib/scatterlist.c' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_copy_to_buffer'>
+        <parameter type-id='bf3ef905' name='sgl' filepath='lib/scatterlist.c' line='984' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='984' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/scatterlist.c' line='985' column='1'/>
+        <parameter type-id='b59d7dce' name='buflen' filepath='lib/scatterlist.c' line='985' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
       <function-decl name='sg_free_table' mangled-name='sg_free_table' filepath='lib/scatterlist.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_free_table'>
         <parameter type-id='4adb0e6a' name='table' filepath='lib/scatterlist.c' line='239' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sg_init_one' mangled-name='sg_init_one' filepath='include/linux/scatterlist.h' line='278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_init_one'>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='sg_init_one' mangled-name='sg_init_one' filepath='lib/scatterlist.c' line='138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_init_one'>
+        <parameter type-id='bf3ef905' name='sg' filepath='lib/scatterlist.c' line='138' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='lib/scatterlist.c' line='138' column='1'/>
+        <parameter type-id='f0981eeb' name='buflen' filepath='lib/scatterlist.c' line='138' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sg_init_table' mangled-name='sg_init_table' filepath='include/linux/scatterlist.h' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_init_table'>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='sg_init_table' mangled-name='sg_init_table' filepath='lib/scatterlist.c' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_init_table'>
+        <parameter type-id='bf3ef905' name='sgl' filepath='lib/scatterlist.c' line='124' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='124' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sg_miter_next' mangled-name='sg_miter_next' filepath='include/linux/scatterlist.h' line='514' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_next'>
-        <parameter type-id='a462f2f9'/>
+      <function-decl name='sg_miter_next' mangled-name='sg_miter_next' filepath='lib/scatterlist.c' line='844' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_next'>
+        <parameter type-id='a462f2f9' name='miter' filepath='lib/scatterlist.c' line='844' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='sg_miter_start' mangled-name='sg_miter_start' filepath='include/linux/scatterlist.h' line='511' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_start'>
-        <parameter type-id='a462f2f9'/>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='sg_miter_start' mangled-name='sg_miter_start' filepath='lib/scatterlist.c' line='755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_start'>
+        <parameter type-id='a462f2f9' name='miter' filepath='lib/scatterlist.c' line='755' column='1'/>
+        <parameter type-id='bf3ef905' name='sgl' filepath='lib/scatterlist.c' line='755' column='1'/>
+        <parameter type-id='f0981eeb' name='nents' filepath='lib/scatterlist.c' line='756' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='lib/scatterlist.c' line='756' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sg_miter_stop' mangled-name='sg_miter_stop' filepath='include/linux/scatterlist.h' line='515' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_stop'>
-        <parameter type-id='a462f2f9'/>
+      <function-decl name='sg_miter_stop' mangled-name='sg_miter_stop' filepath='lib/scatterlist.c' line='881' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_miter_stop'>
+        <parameter type-id='a462f2f9' name='miter' filepath='lib/scatterlist.c' line='881' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sg_next' mangled-name='sg_next' filepath='include/linux/scatterlist.h' line='275' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_next'>
-        <parameter type-id='bf3ef905'/>
+      <function-decl name='sg_next' mangled-name='sg_next' filepath='lib/scatterlist.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_next'>
+        <parameter type-id='bf3ef905' name='sg' filepath='lib/scatterlist.c' line='23' column='1'/>
         <return type-id='bf3ef905'/>
       </function-decl>
       <function-decl name='sg_pcopy_from_buffer' mangled-name='sg_pcopy_from_buffer' filepath='lib/scatterlist.c' line='1002' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_pcopy_from_buffer'>
@@ -125041,12 +120422,12 @@
         <parameter type-id='69bf7bee' name='lend' filepath='mm/shmem.c' line='1067' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='simple_attr_open' mangled-name='simple_attr_open' filepath='include/linux/fs.h' line='3416' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_open'>
-        <parameter type-id='7e666abe'/>
-        <parameter type-id='77e79a4b'/>
-        <parameter type-id='dffc7428'/>
-        <parameter type-id='0fb09eeb'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='simple_attr_open' mangled-name='simple_attr_open' filepath='fs/libfs.c' line='890' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_open'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/libfs.c' line='890' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/libfs.c' line='890' column='1'/>
+        <parameter type-id='dffc7428' name='get' filepath='fs/libfs.c' line='891' column='1'/>
+        <parameter type-id='0fb09eeb' name='set' filepath='fs/libfs.c' line='891' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='fs/libfs.c' line='892' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='simple_attr_read' mangled-name='simple_attr_read' filepath='fs/libfs.c' line='920' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_attr_read'>
@@ -125075,12 +120456,12 @@
         <parameter type-id='77e79a4b' name='file' filepath='fs/libfs.c' line='385' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='simple_read_from_buffer' mangled-name='simple_read_from_buffer' filepath='include/linux/fs.h' line='3251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_read_from_buffer'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='b53e8dbb'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='simple_read_from_buffer' mangled-name='simple_read_from_buffer' filepath='fs/libfs.c' line='717' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_read_from_buffer'>
+        <parameter type-id='eaa32e2f' name='to' filepath='fs/libfs.c' line='717' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='fs/libfs.c' line='717' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='fs/libfs.c' line='717' column='1'/>
+        <parameter type-id='eaa32e2f' name='from' filepath='fs/libfs.c' line='718' column='1'/>
+        <parameter type-id='b59d7dce' name='available' filepath='fs/libfs.c' line='718' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
       <function-decl name='simple_statfs' mangled-name='simple_statfs' filepath='fs/libfs.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_statfs'>
@@ -125100,10 +120481,10 @@
         <parameter type-id='f0981eeb' name='base' filepath='lib/vsprintf.c' line='149' column='1'/>
         <return type-id='1eb56b1e'/>
       </function-decl>
-      <function-decl name='simple_strtoul' mangled-name='simple_strtoul' filepath='include/linux/kernel.h' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtoul'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='9b23c9ad'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='simple_strtoul' mangled-name='simple_strtoul' filepath='lib/vsprintf.c' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtoul'>
+        <parameter type-id='80f4b756' name='cp' filepath='lib/vsprintf.c' line='103' column='1'/>
+        <parameter type-id='9b23c9ad' name='endp' filepath='lib/vsprintf.c' line='103' column='1'/>
+        <parameter type-id='f0981eeb' name='base' filepath='lib/vsprintf.c' line='103' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='simple_strtoull' mangled-name='simple_strtoull' filepath='include/linux/kernel.h' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='simple_strtoull'>
@@ -125120,10 +120501,10 @@
         <parameter type-id='b59d7dce' name='count' filepath='fs/libfs.c' line='753' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
-      <function-decl name='single_open' mangled-name='single_open' filepath='include/linux/seq_file.h' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_open'>
-        <parameter type-id='77e79a4b'/>
-        <parameter type-id='0131eb61'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='single_open' mangled-name='single_open' filepath='fs/seq_file.c' line='561' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_open'>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='561' column='1'/>
+        <parameter type-id='0131eb61' name='show' filepath='fs/seq_file.c' line='561' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='fs/seq_file.c' line='562' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='single_open_size' mangled-name='single_open_size' filepath='fs/seq_file.c' line='582' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_open_size'>
@@ -125133,30 +120514,30 @@
         <parameter type-id='b59d7dce' name='size' filepath='fs/seq_file.c' line='583' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='single_release' mangled-name='single_release' filepath='include/linux/seq_file.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_release'>
-        <parameter type-id='7e666abe'/>
-        <parameter type-id='77e79a4b'/>
+      <function-decl name='single_release' mangled-name='single_release' filepath='fs/seq_file.c' line='600' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='single_release'>
+        <parameter type-id='7e666abe' name='inode' filepath='fs/seq_file.c' line='600' column='1'/>
+        <parameter type-id='77e79a4b' name='file' filepath='fs/seq_file.c' line='600' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sk_alloc' mangled-name='sk_alloc' filepath='include/net/sock.h' line='1666' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_alloc'>
-        <parameter type-id='a2bff676'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='3eb7c31c'/>
-        <parameter type-id='d2524501'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='sk_alloc' mangled-name='sk_alloc' filepath='net/core/sock.c' line='1746' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_alloc'>
+        <parameter type-id='a2bff676' name='net' filepath='net/core/sock.c' line='1746' column='1'/>
+        <parameter type-id='95e97e5e' name='family' filepath='net/core/sock.c' line='1746' column='1'/>
+        <parameter type-id='3eb7c31c' name='priority' filepath='net/core/sock.c' line='1746' column='1'/>
+        <parameter type-id='d2524501' name='prot' filepath='net/core/sock.c' line='1747' column='1'/>
+        <parameter type-id='95e97e5e' name='kern' filepath='net/core/sock.c' line='1747' column='1'/>
         <return type-id='f772df6d'/>
       </function-decl>
-      <function-decl name='sk_free' mangled-name='sk_free' filepath='include/net/sock.h' line='1668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_free'>
-        <parameter type-id='f772df6d'/>
+      <function-decl name='sk_free' mangled-name='sk_free' filepath='net/core/sock.c' line='1849' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sk_free'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='1849' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='skb_add_rx_frag' mangled-name='skb_add_rx_frag' filepath='include/linux/skbuff.h' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_add_rx_frag'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='02f11ed4'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='skb_add_rx_frag' mangled-name='skb_add_rx_frag' filepath='net/core/skbuff.c' line='557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_add_rx_frag'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='557' column='1'/>
+        <parameter type-id='95e97e5e' name='i' filepath='net/core/skbuff.c' line='557' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='net/core/skbuff.c' line='557' column='1'/>
+        <parameter type-id='95e97e5e' name='off' filepath='net/core/skbuff.c' line='557' column='1'/>
+        <parameter type-id='95e97e5e' name='size' filepath='net/core/skbuff.c' line='558' column='1'/>
+        <parameter type-id='f0981eeb' name='truesize' filepath='net/core/skbuff.c' line='558' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='skb_checksum' mangled-name='skb_checksum' filepath='net/core/skbuff.c' line='2729' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_checksum'>
@@ -125166,9 +120547,9 @@
         <parameter type-id='fbd88bba' name='csum' filepath='net/core/skbuff.c' line='2730' column='1'/>
         <return type-id='fbd88bba'/>
       </function-decl>
-      <function-decl name='skb_clone' mangled-name='skb_clone' filepath='include/linux/skbuff.h' line='1157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_clone'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='skb_clone' mangled-name='skb_clone' filepath='net/core/skbuff.c' line='1441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_clone'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1441' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='1441' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
       <function-decl name='skb_coalesce_rx_frag' mangled-name='skb_coalesce_rx_frag' filepath='net/core/skbuff.c' line='567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_coalesce_rx_frag'>
@@ -125178,34 +120559,34 @@
         <parameter type-id='f0981eeb' name='truesize' filepath='net/core/skbuff.c' line='568' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='skb_copy' mangled-name='skb_copy' filepath='include/linux/skbuff.h' line='1159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy'>
-        <parameter type-id='11f4a000'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='skb_copy' mangled-name='skb_copy' filepath='net/core/skbuff.c' line='1520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy'>
+        <parameter type-id='11f4a000' name='skb' filepath='net/core/skbuff.c' line='1520' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='1520' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='skb_copy_bits' mangled-name='skb_copy_bits' filepath='include/linux/skbuff.h' line='3573' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_bits'>
-        <parameter type-id='11f4a000'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='skb_copy_bits' mangled-name='skb_copy_bits' filepath='net/core/skbuff.c' line='2205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_bits'>
+        <parameter type-id='11f4a000' name='skb' filepath='net/core/skbuff.c' line='2205' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='2205' column='1'/>
+        <parameter type-id='eaa32e2f' name='to' filepath='net/core/skbuff.c' line='2205' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='2205' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='skb_copy_datagram_iter' mangled-name='skb_copy_datagram_iter' filepath='include/linux/skbuff.h' line='3550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_datagram_iter'>
-        <parameter type-id='11f4a000'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='4fa10f9e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='skb_copy_datagram_iter' mangled-name='skb_copy_datagram_iter' filepath='net/core/datagram.c' line='529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_datagram_iter'>
+        <parameter type-id='11f4a000' name='skb' filepath='net/core/datagram.c' line='529' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='net/core/datagram.c' line='529' column='1'/>
+        <parameter type-id='4fa10f9e' name='to' filepath='net/core/datagram.c' line='530' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='net/core/datagram.c' line='530' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='skb_copy_expand' mangled-name='skb_copy_expand' filepath='include/linux/skbuff.h' line='1171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_expand'>
-        <parameter type-id='11f4a000'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='skb_copy_expand' mangled-name='skb_copy_expand' filepath='net/core/skbuff.c' line='1749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_copy_expand'>
+        <parameter type-id='11f4a000' name='skb' filepath='net/core/skbuff.c' line='1749' column='1'/>
+        <parameter type-id='95e97e5e' name='newheadroom' filepath='net/core/skbuff.c' line='1750' column='1'/>
+        <parameter type-id='95e97e5e' name='newtailroom' filepath='net/core/skbuff.c' line='1750' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='net/core/skbuff.c' line='1751' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='skb_dequeue' mangled-name='skb_dequeue' filepath='include/linux/skbuff.h' line='2108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_dequeue'>
-        <parameter type-id='03c386c6'/>
+      <function-decl name='skb_dequeue' mangled-name='skb_dequeue' filepath='net/core/skbuff.c' line='3055' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_dequeue'>
+        <parameter type-id='03c386c6' name='list' filepath='net/core/skbuff.c' line='3055' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
       <function-decl name='skb_dequeue_tail' mangled-name='skb_dequeue_tail' filepath='net/core/skbuff.c' line='3075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_dequeue_tail'>
@@ -125217,50 +120598,50 @@
         <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/datagram.c' line='323' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='skb_page_frag_refill' mangled-name='skb_page_frag_refill' filepath='include/linux/skbuff.h' line='3122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_page_frag_refill'>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='a8d434b7'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='skb_page_frag_refill' mangled-name='skb_page_frag_refill' filepath='net/core/sock.c' line='2467' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_page_frag_refill'>
+        <parameter type-id='f0981eeb' name='sz' filepath='net/core/sock.c' line='2467' column='1'/>
+        <parameter type-id='a8d434b7' name='pfrag' filepath='net/core/sock.c' line='2467' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/core/sock.c' line='2467' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='skb_partial_csum_set' mangled-name='skb_partial_csum_set' filepath='include/linux/skbuff.h' line='4562' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_partial_csum_set'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='1dc6a898'/>
-        <parameter type-id='1dc6a898'/>
+      <function-decl name='skb_partial_csum_set' mangled-name='skb_partial_csum_set' filepath='net/core/skbuff.c' line='4812' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_partial_csum_set'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='4812' column='1'/>
+        <parameter type-id='1dc6a898' name='start' filepath='net/core/skbuff.c' line='4812' column='1'/>
+        <parameter type-id='1dc6a898' name='off' filepath='net/core/skbuff.c' line='4812' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='skb_pull' mangled-name='skb_pull' filepath='include/linux/skbuff.h' line='2316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_pull'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='skb_pull' mangled-name='skb_pull' filepath='net/core/skbuff.c' line='1911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_pull'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1911' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='1911' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='skb_push' mangled-name='skb_push' filepath='include/linux/skbuff.h' line='2308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_push'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='skb_push' mangled-name='skb_push' filepath='net/core/skbuff.c' line='1891' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_push'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1891' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='1891' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='skb_put' mangled-name='skb_put' filepath='include/linux/skbuff.h' line='2252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_put'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='skb_put' mangled-name='skb_put' filepath='net/core/skbuff.c' line='1870' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_put'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1870' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='1870' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='skb_queue_head' mangled-name='skb_queue_head' filepath='include/linux/skbuff.h' line='2057' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_head'>
-        <parameter type-id='03c386c6'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='skb_queue_head' mangled-name='skb_queue_head' filepath='net/core/skbuff.c' line='3140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_head'>
+        <parameter type-id='03c386c6' name='list' filepath='net/core/skbuff.c' line='3140' column='1'/>
+        <parameter type-id='0fbf3cfd' name='newsk' filepath='net/core/skbuff.c' line='3140' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='skb_queue_purge' mangled-name='skb_queue_purge' filepath='include/linux/skbuff.h' line='2824' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_purge'>
-        <parameter type-id='03c386c6'/>
+      <function-decl name='skb_queue_purge' mangled-name='skb_queue_purge' filepath='net/core/skbuff.c' line='3095' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_purge'>
+        <parameter type-id='03c386c6' name='list' filepath='net/core/skbuff.c' line='3095' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='skb_queue_tail' mangled-name='skb_queue_tail' filepath='include/linux/skbuff.h' line='2074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_tail'>
-        <parameter type-id='03c386c6'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='skb_queue_tail' mangled-name='skb_queue_tail' filepath='net/core/skbuff.c' line='3161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_queue_tail'>
+        <parameter type-id='03c386c6' name='list' filepath='net/core/skbuff.c' line='3161' column='1'/>
+        <parameter type-id='0fbf3cfd' name='newsk' filepath='net/core/skbuff.c' line='3161' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='skb_realloc_headroom' mangled-name='skb_realloc_headroom' filepath='include/linux/skbuff.h' line='1169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_realloc_headroom'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='skb_realloc_headroom' mangled-name='skb_realloc_headroom' filepath='net/core/skbuff.c' line='1712' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_realloc_headroom'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1712' column='1'/>
+        <parameter type-id='f0981eeb' name='headroom' filepath='net/core/skbuff.c' line='1712' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
       <function-decl name='skb_recv_datagram' mangled-name='skb_recv_datagram' filepath='net/core/datagram.c' line='312' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_recv_datagram'>
@@ -125270,9 +120651,9 @@
         <parameter type-id='7292109c' name='err' filepath='net/core/datagram.c' line='313' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='skb_set_owner_w' mangled-name='skb_set_owner_w' filepath='include/net/sock.h' line='2200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_set_owner_w'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='f772df6d'/>
+      <function-decl name='skb_set_owner_w' mangled-name='skb_set_owner_w' filepath='net/core/sock.c' line='2085' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_set_owner_w'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/sock.c' line='2085' column='1'/>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2085' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='skb_store_bits' mangled-name='skb_store_bits' filepath='net/core/skbuff.c' line='2567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_store_bits'>
@@ -125282,16 +120663,16 @@
         <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='2567' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='skb_to_sgvec' mangled-name='skb_to_sgvec' filepath='include/linux/skbuff.h' line='1175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_to_sgvec'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='bf3ef905'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='skb_to_sgvec' mangled-name='skb_to_sgvec' filepath='net/core/skbuff.c' line='4392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_to_sgvec'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='4392' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='net/core/skbuff.c' line='4392' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='net/core/skbuff.c' line='4392' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='net/core/skbuff.c' line='4392' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='skb_trim' mangled-name='skb_trim' filepath='include/linux/skbuff.h' line='2720' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_trim'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='skb_trim' mangled-name='skb_trim' filepath='net/core/skbuff.c' line='1926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_trim'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/skbuff.c' line='1926' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='net/core/skbuff.c' line='1926' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='skb_tstamp_tx' mangled-name='skb_tstamp_tx' filepath='net/core/skbuff.c' line='4766' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skb_tstamp_tx'>
@@ -125326,15 +120707,15 @@
         <parameter type-id='b50a4934' name='atomic' filepath='crypto/skcipher.c' line='554' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='skcipher_walk_done' mangled-name='skcipher_walk_done' filepath='include/crypto/internal/skcipher.h' line='132' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_done'>
-        <parameter type-id='74439606'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='skcipher_walk_done' mangled-name='skcipher_walk_done' filepath='crypto/skcipher.c' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_done'>
+        <parameter type-id='74439606' name='walk' filepath='crypto/skcipher.c' line='105' column='1'/>
+        <parameter type-id='95e97e5e' name='err' filepath='crypto/skcipher.c' line='105' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='skcipher_walk_virt' mangled-name='skcipher_walk_virt' filepath='include/crypto/internal/skcipher.h' line='133' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_virt'>
-        <parameter type-id='74439606'/>
-        <parameter type-id='c249b570'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='skcipher_walk_virt' mangled-name='skcipher_walk_virt' filepath='crypto/skcipher.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skcipher_walk_virt'>
+        <parameter type-id='74439606' name='walk' filepath='crypto/skcipher.c' line='477' column='1'/>
+        <parameter type-id='c249b570' name='req' filepath='crypto/skcipher.c' line='478' column='1'/>
+        <parameter type-id='b50a4934' name='atomic' filepath='crypto/skcipher.c' line='478' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='skip_spaces' mangled-name='skip_spaces' filepath='include/linux/string.h' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='skip_spaces'>
@@ -125347,11 +120728,11 @@
         <parameter type-id='95e97e5e' name='wait' filepath='kernel/smp.c' line='735' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='smp_call_function_single' mangled-name='smp_call_function_single' filepath='include/linux/smp.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='smp_call_function_single'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='89714567'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='smp_call_function_single' mangled-name='smp_call_function_single' filepath='kernel/smp.c' line='468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='smp_call_function_single'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/smp.c' line='468' column='1'/>
+        <parameter type-id='89714567' name='func' filepath='kernel/smp.c' line='468' column='1'/>
+        <parameter type-id='eaa32e2f' name='info' filepath='kernel/smp.c' line='468' column='1'/>
+        <parameter type-id='95e97e5e' name='wait' filepath='kernel/smp.c' line='469' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='smp_call_on_cpu' mangled-name='smp_call_on_cpu' filepath='kernel/smp.c' line='1021' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='smp_call_on_cpu'>
@@ -125361,25 +120742,25 @@
         <parameter type-id='b50a4934' name='phys' filepath='kernel/smp.c' line='1021' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_card_disconnect' mangled-name='snd_card_disconnect' filepath='include/sound/core.h' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_disconnect'>
-        <parameter type-id='52704eb7'/>
+      <function-decl name='snd_card_disconnect' mangled-name='snd_card_disconnect' filepath='sound/core/init.c' line='380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_disconnect'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/init.c' line='380' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_card_free' mangled-name='snd_card_free' filepath='include/sound/core.h' line='242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_free'>
-        <parameter type-id='52704eb7'/>
+      <function-decl name='snd_card_free' mangled-name='snd_card_free' filepath='sound/core/init.c' line='522' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_free'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/init.c' line='522' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_card_new' mangled-name='snd_card_new' filepath='include/sound/core.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_new'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2730d015'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='63cbc127'/>
+      <function-decl name='snd_card_new' mangled-name='snd_card_new' filepath='sound/core/init.c' line='161' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_new'>
+        <parameter type-id='fa0b179b' name='parent' filepath='sound/core/init.c' line='161' column='1'/>
+        <parameter type-id='95e97e5e' name='idx' filepath='sound/core/init.c' line='161' column='1'/>
+        <parameter type-id='80f4b756' name='xid' filepath='sound/core/init.c' line='161' column='1'/>
+        <parameter type-id='2730d015' name='module' filepath='sound/core/init.c' line='162' column='1'/>
+        <parameter type-id='95e97e5e' name='extra_size' filepath='sound/core/init.c' line='162' column='1'/>
+        <parameter type-id='63cbc127' name='card_ret' filepath='sound/core/init.c' line='163' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_card_register' mangled-name='snd_card_register' filepath='include/sound/core.h' line='245' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_register'>
-        <parameter type-id='52704eb7'/>
+      <function-decl name='snd_card_register' mangled-name='snd_card_register' filepath='sound/core/init.c' line='746' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_register'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/init.c' line='746' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_card_rw_proc_new' mangled-name='snd_card_rw_proc_new' filepath='sound/core/info.c' line='873' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_card_rw_proc_new'>
@@ -125390,9 +120771,9 @@
         <parameter type-id='f695e0b6' name='write' filepath='sound/core/info.c' line='877' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_component_add' mangled-name='snd_component_add' filepath='include/sound/core.h' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_component_add'>
-        <parameter type-id='52704eb7'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='snd_component_add' mangled-name='snd_component_add' filepath='sound/core/init.c' line='892' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_component_add'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/init.c' line='892' column='1'/>
+        <parameter type-id='80f4b756' name='component' filepath='sound/core/init.c' line='892' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_compr_stop_error' mangled-name='snd_compr_stop_error' filepath='sound/core/compress_offload.c' line='827' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_compr_stop_error'>
@@ -125444,9 +120825,9 @@
         <parameter type-id='5b2fd8e8' name='tlv' filepath='sound/core/vmaster.c' line='393' column='1'/>
         <return type-id='7a5054b7'/>
       </function-decl>
-      <function-decl name='snd_ctl_new1' mangled-name='snd_ctl_new1' filepath='include/sound/control.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_new1'>
-        <parameter type-id='31e035f7'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='snd_ctl_new1' mangled-name='snd_ctl_new1' filepath='sound/core/control.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_new1'>
+        <parameter type-id='31e035f7' name='ncontrol' filepath='sound/core/control.c' line='229' column='1'/>
+        <parameter type-id='eaa32e2f' name='private_data' filepath='sound/core/control.c' line='230' column='1'/>
         <return type-id='7a5054b7'/>
       </function-decl>
       <function-decl name='snd_ctl_notify' mangled-name='snd_ctl_notify' filepath='sound/core/control.c' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_ctl_notify'>
@@ -125475,22 +120856,22 @@
         <parameter type-id='eaa32e2f' name='device_data' filepath='sound/core/device.c' line='130' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='snd_device_new' mangled-name='snd_device_new' filepath='include/sound/core.h' line='271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_device_new'>
-        <parameter type-id='52704eb7'/>
-        <parameter type-id='43cb465b'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='c00b0b11'/>
+      <function-decl name='snd_device_new' mangled-name='snd_device_new' filepath='sound/core/device.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_device_new'>
+        <parameter type-id='52704eb7' name='card' filepath='sound/core/device.c' line='29' column='1'/>
+        <parameter type-id='43cb465b' name='type' filepath='sound/core/device.c' line='29' column='1'/>
+        <parameter type-id='eaa32e2f' name='device_data' filepath='sound/core/device.c' line='30' column='1'/>
+        <parameter type-id='c00b0b11' name='ops' filepath='sound/core/device.c' line='30' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_dma_alloc_pages' mangled-name='snd_dma_alloc_pages' filepath='include/sound/memalloc.h' line='140' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_alloc_pages'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='a02b8cd2'/>
+      <function-decl name='snd_dma_alloc_pages' mangled-name='snd_dma_alloc_pages' filepath='sound/core/memalloc.c' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_alloc_pages'>
+        <parameter type-id='95e97e5e' name='type' filepath='sound/core/memalloc.c' line='126' column='1'/>
+        <parameter type-id='fa0b179b' name='device' filepath='sound/core/memalloc.c' line='126' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='sound/core/memalloc.c' line='126' column='1'/>
+        <parameter type-id='a02b8cd2' name='dmab' filepath='sound/core/memalloc.c' line='127' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_dma_free_pages' mangled-name='snd_dma_free_pages' filepath='include/sound/memalloc.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_free_pages'>
-        <parameter type-id='a02b8cd2'/>
+      <function-decl name='snd_dma_free_pages' mangled-name='snd_dma_free_pages' filepath='sound/core/memalloc.c' line='227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dma_free_pages'>
+        <parameter type-id='a02b8cd2' name='dmab' filepath='sound/core/memalloc.c' line='227' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='snd_dmaengine_pcm_prepare_slave_config' mangled-name='snd_dmaengine_pcm_prepare_slave_config' filepath='sound/soc/soc-generic-dmaengine-pcm.c' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_dmaengine_pcm_prepare_slave_config'>
@@ -125545,8 +120926,8 @@
         <parameter type-id='b59d7dce' name='len' filepath='sound/core/pcm_iec958.c' line='118' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_format_physical_width' mangled-name='snd_pcm_format_physical_width' filepath='include/sound/pcm.h' line='1059' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_format_physical_width'>
-        <parameter type-id='67fa9bd5'/>
+      <function-decl name='snd_pcm_format_physical_width' mangled-name='snd_pcm_format_physical_width' filepath='sound/core/pcm_misc.c' line='366' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_format_physical_width'>
+        <parameter type-id='67fa9bd5' name='format' filepath='sound/core/pcm_misc.c' line='366' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_pcm_format_width' mangled-name='snd_pcm_format_width' filepath='sound/core/pcm_misc.c' line='348' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_format_width'>
@@ -125558,9 +120939,9 @@
         <parameter type-id='eaa32e2f' name='eld' filepath='sound/core/pcm_drm_eld.c' line='80' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_hw_constraint_integer' mangled-name='snd_pcm_hw_constraint_integer' filepath='include/sound/pcm.h' line='986' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_integer'>
-        <parameter type-id='17a05af6'/>
-        <parameter type-id='6b55ba25'/>
+      <function-decl name='snd_pcm_hw_constraint_integer' mangled-name='snd_pcm_hw_constraint_integer' filepath='sound/core/pcm_lib.c' line='1219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_integer'>
+        <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1219' column='1'/>
+        <parameter type-id='6b55ba25' name='var' filepath='sound/core/pcm_lib.c' line='1219' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_pcm_hw_constraint_list' mangled-name='snd_pcm_hw_constraint_list' filepath='sound/core/pcm_lib.c' line='1270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_list'>
@@ -125570,11 +120951,11 @@
         <parameter type-id='a5cedbd3' name='l' filepath='sound/core/pcm_lib.c' line='1273' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_hw_constraint_minmax' mangled-name='snd_pcm_hw_constraint_minmax' filepath='include/sound/pcm.h' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_minmax'>
-        <parameter type-id='17a05af6'/>
-        <parameter type-id='6b55ba25'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='snd_pcm_hw_constraint_minmax' mangled-name='snd_pcm_hw_constraint_minmax' filepath='sound/core/pcm_lib.c' line='1238' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_minmax'>
+        <parameter type-id='17a05af6' name='runtime' filepath='sound/core/pcm_lib.c' line='1238' column='1'/>
+        <parameter type-id='6b55ba25' name='var' filepath='sound/core/pcm_lib.c' line='1238' column='1'/>
+        <parameter type-id='f0981eeb' name='min' filepath='sound/core/pcm_lib.c' line='1239' column='1'/>
+        <parameter type-id='f0981eeb' name='max' filepath='sound/core/pcm_lib.c' line='1239' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_pcm_hw_constraint_step' mangled-name='snd_pcm_hw_constraint_step' filepath='sound/core/pcm_lib.c' line='1443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_constraint_step'>
@@ -125584,8 +120965,8 @@
         <parameter type-id='7359adad' name='step' filepath='sound/core/pcm_lib.c' line='1446' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_hw_limit_rates' mangled-name='snd_pcm_hw_limit_rates' filepath='include/sound/pcm.h' line='1130' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_limit_rates'>
-        <parameter type-id='17e4a02a'/>
+      <function-decl name='snd_pcm_hw_limit_rates' mangled-name='snd_pcm_hw_limit_rates' filepath='sound/core/pcm_misc.c' line='490' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_hw_limit_rates'>
+        <parameter type-id='17e4a02a' name='hw' filepath='sound/core/pcm_misc.c' line='490' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_pcm_lib_default_mmap' mangled-name='snd_pcm_lib_default_mmap' filepath='sound/core/pcm_native.c' line='3730' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_default_mmap'>
@@ -125593,19 +120974,19 @@
         <parameter type-id='2ae08426' name='area' filepath='sound/core/pcm_native.c' line='3731' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_lib_free_pages' mangled-name='snd_pcm_lib_free_pages' filepath='include/sound/pcm.h' line='1204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_free_pages'>
-        <parameter type-id='06b2cd14'/>
+      <function-decl name='snd_pcm_lib_free_pages' mangled-name='snd_pcm_lib_free_pages' filepath='sound/core/pcm_memory.c' line='432' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_free_pages'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_memory.c' line='432' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_lib_ioctl' mangled-name='snd_pcm_lib_ioctl' filepath='include/sound/pcm.h' line='1067' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_ioctl'>
-        <parameter type-id='06b2cd14'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='snd_pcm_lib_ioctl' mangled-name='snd_pcm_lib_ioctl' filepath='sound/core/pcm_lib.c' line='1765' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_ioctl'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_lib.c' line='1765' column='1'/>
+        <parameter type-id='f0981eeb' name='cmd' filepath='sound/core/pcm_lib.c' line='1766' column='1'/>
+        <parameter type-id='eaa32e2f' name='arg' filepath='sound/core/pcm_lib.c' line='1766' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_lib_malloc_pages' mangled-name='snd_pcm_lib_malloc_pages' filepath='include/sound/pcm.h' line='1203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_malloc_pages'>
-        <parameter type-id='06b2cd14'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='snd_pcm_lib_malloc_pages' mangled-name='snd_pcm_lib_malloc_pages' filepath='sound/core/pcm_memory.c' line='378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_malloc_pages'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_memory.c' line='378' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='sound/core/pcm_memory.c' line='378' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_pcm_lib_preallocate_pages' mangled-name='snd_pcm_lib_preallocate_pages' filepath='sound/core/pcm_memory.c' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_lib_preallocate_pages'>
@@ -125625,22 +121006,22 @@
         <parameter type-id='0f9dfae3' name='rpcm' filepath='sound/core/pcm.c' line='774' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_pcm_period_elapsed' mangled-name='snd_pcm_period_elapsed' filepath='include/sound/pcm.h' line='1069' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_period_elapsed'>
-        <parameter type-id='06b2cd14'/>
+      <function-decl name='snd_pcm_period_elapsed' mangled-name='snd_pcm_period_elapsed' filepath='sound/core/pcm_lib.c' line='1791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_period_elapsed'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/core/pcm_lib.c' line='1791' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='snd_pcm_set_managed_buffer_all' mangled-name='snd_pcm_set_managed_buffer_all' filepath='include/sound/pcm.h' line='1208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_managed_buffer_all'>
-        <parameter type-id='4c9f335b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='snd_pcm_set_managed_buffer_all' mangled-name='snd_pcm_set_managed_buffer_all' filepath='sound/core/pcm_memory.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_managed_buffer_all'>
+        <parameter type-id='4c9f335b' name='pcm' filepath='sound/core/pcm_memory.c' line='338' column='1'/>
+        <parameter type-id='95e97e5e' name='type' filepath='sound/core/pcm_memory.c' line='338' column='1'/>
+        <parameter type-id='fa0b179b' name='data' filepath='sound/core/pcm_memory.c' line='339' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='sound/core/pcm_memory.c' line='340' column='1'/>
+        <parameter type-id='b59d7dce' name='max' filepath='sound/core/pcm_memory.c' line='340' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='snd_pcm_set_ops' mangled-name='snd_pcm_set_ops' filepath='include/sound/pcm.h' line='1064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_ops'>
-        <parameter type-id='4c9f335b'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f63b1a17'/>
+      <function-decl name='snd_pcm_set_ops' mangled-name='snd_pcm_set_ops' filepath='sound/core/pcm_lib.c' line='481' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_ops'>
+        <parameter type-id='4c9f335b' name='pcm' filepath='sound/core/pcm_lib.c' line='481' column='1'/>
+        <parameter type-id='95e97e5e' name='direction' filepath='sound/core/pcm_lib.c' line='481' column='1'/>
+        <parameter type-id='f63b1a17' name='ops' filepath='sound/core/pcm_lib.c' line='482' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='snd_pcm_set_sync' mangled-name='snd_pcm_set_sync' filepath='sound/core/pcm_lib.c' line='498' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_pcm_set_sync'>
@@ -125667,9 +121048,9 @@
         <parameter type-id='807869d3' name='tlv' filepath='sound/soc/soc-ops.c' line='773' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_card_get_kcontrol' mangled-name='snd_soc_card_get_kcontrol' filepath='include/sound/soc-card.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_get_kcontrol'>
-        <parameter type-id='3059cd0b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='snd_soc_card_get_kcontrol' mangled-name='snd_soc_card_get_kcontrol' filepath='sound/soc/soc-card.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_get_kcontrol'>
+        <parameter type-id='3059cd0b' name='soc_card' filepath='sound/soc/soc-card.c' line='29' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='sound/soc/soc-card.c' line='30' column='1'/>
         <return type-id='7a5054b7'/>
       </function-decl>
       <function-decl name='snd_soc_card_jack_new' mangled-name='snd_soc_card_jack_new' filepath='sound/soc/soc-card.c' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_card_jack_new'>
@@ -125706,38 +121087,38 @@
         <parameter type-id='29af9a71' name='regmap' filepath='sound/soc/soc-component.c' line='388' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='snd_soc_component_read' mangled-name='snd_soc_component_read' filepath='include/sound/soc-component.h' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_read'>
-        <parameter type-id='807b7702'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='snd_soc_component_read' mangled-name='snd_soc_component_read' filepath='sound/soc/soc-component.c' line='444' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_read'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='444' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='sound/soc/soc-component.c' line='445' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='snd_soc_component_set_jack' mangled-name='snd_soc_component_set_jack' filepath='include/sound/soc-component.h' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_jack'>
-        <parameter type-id='807b7702'/>
-        <parameter type-id='12a060a4'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='snd_soc_component_set_jack' mangled-name='snd_soc_component_set_jack' filepath='sound/soc/soc-component.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_jack'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='228' column='1'/>
+        <parameter type-id='12a060a4' name='jack' filepath='sound/soc/soc-component.c' line='229' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='sound/soc/soc-component.c' line='229' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_component_set_pll' mangled-name='snd_soc_component_set_pll' filepath='include/sound/soc-component.h' line='359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_pll'>
-        <parameter type-id='807b7702'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='snd_soc_component_set_pll' mangled-name='snd_soc_component_set_pll' filepath='sound/soc/soc-component.c' line='95' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_pll'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='95' column='1'/>
+        <parameter type-id='95e97e5e' name='pll_id' filepath='sound/soc/soc-component.c' line='95' column='1'/>
+        <parameter type-id='95e97e5e' name='source' filepath='sound/soc/soc-component.c' line='96' column='1'/>
+        <parameter type-id='f0981eeb' name='freq_in' filepath='sound/soc/soc-component.c' line='96' column='1'/>
+        <parameter type-id='f0981eeb' name='freq_out' filepath='sound/soc/soc-component.c' line='97' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_component_set_sysclk' mangled-name='snd_soc_component_set_sysclk' filepath='include/sound/soc-component.h' line='356' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_sysclk'>
-        <parameter type-id='807b7702'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='snd_soc_component_set_sysclk' mangled-name='snd_soc_component_set_sysclk' filepath='sound/soc/soc-component.c' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_set_sysclk'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='71' column='1'/>
+        <parameter type-id='95e97e5e' name='clk_id' filepath='sound/soc/soc-component.c' line='72' column='1'/>
+        <parameter type-id='95e97e5e' name='source' filepath='sound/soc/soc-component.c' line='72' column='1'/>
+        <parameter type-id='f0981eeb' name='freq' filepath='sound/soc/soc-component.c' line='72' column='1'/>
+        <parameter type-id='95e97e5e' name='dir' filepath='sound/soc/soc-component.c' line='73' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_component_update_bits' mangled-name='snd_soc_component_update_bits' filepath='include/sound/soc-component.h' line='344' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_update_bits'>
-        <parameter type-id='807b7702'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='snd_soc_component_update_bits' mangled-name='snd_soc_component_update_bits' filepath='sound/soc/soc-component.c' line='524' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_update_bits'>
+        <parameter type-id='807b7702' name='component' filepath='sound/soc/soc-component.c' line='524' column='1'/>
+        <parameter type-id='f0981eeb' name='reg' filepath='sound/soc/soc-component.c' line='525' column='1'/>
+        <parameter type-id='f0981eeb' name='mask' filepath='sound/soc/soc-component.c' line='525' column='1'/>
+        <parameter type-id='f0981eeb' name='val' filepath='sound/soc/soc-component.c' line='525' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_soc_component_write' mangled-name='snd_soc_component_write' filepath='sound/soc/soc-component.c' line='479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_component_write'>
@@ -125766,9 +121147,9 @@
         <parameter type-id='807869d3' name='rx_slot' filepath='sound/soc/soc-dai.c' line='241' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_dai_set_fmt' mangled-name='snd_soc_dai_set_fmt' filepath='include/sound/soc-dai.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_fmt'>
-        <parameter type-id='1c936db9'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='snd_soc_dai_set_fmt' mangled-name='snd_soc_dai_set_fmt' filepath='sound/soc/soc-dai.c' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_fmt'>
+        <parameter type-id='1c936db9' name='dai' filepath='sound/soc/soc-dai.c' line='144' column='1'/>
+        <parameter type-id='f0981eeb' name='fmt' filepath='sound/soc/soc-dai.c' line='144' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_soc_dai_set_pll' mangled-name='snd_soc_dai_set_pll' filepath='sound/soc/soc-dai.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dai_set_pll'>
@@ -125794,10 +121175,10 @@
         <parameter type-id='95e97e5e' name='slot_width' filepath='sound/soc/soc-dai.c' line='205' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_dapm_add_routes' mangled-name='snd_soc_dapm_add_routes' filepath='include/sound/soc-dapm.h' line='445' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_add_routes'>
-        <parameter type-id='70d004a5'/>
-        <parameter type-id='8f3d28b8'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='snd_soc_dapm_add_routes' mangled-name='snd_soc_dapm_add_routes' filepath='sound/soc/soc-dapm.c' line='3098' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_add_routes'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='3098' column='1'/>
+        <parameter type-id='8f3d28b8' name='route' filepath='sound/soc/soc-dapm.c' line='3099' column='1'/>
+        <parameter type-id='95e97e5e' name='num' filepath='sound/soc/soc-dapm.c' line='3099' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_soc_dapm_del_routes' mangled-name='snd_soc_dapm_del_routes' filepath='sound/soc/soc-dapm.c' line='3129' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_del_routes'>
@@ -125879,10 +121260,10 @@
         <parameter type-id='33146de3' name='update' filepath='sound/soc/soc-dapm.c' line='2300' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_dapm_new_controls' mangled-name='snd_soc_dapm_new_controls' filepath='include/sound/soc-dapm.h' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_new_controls'>
-        <parameter type-id='70d004a5'/>
-        <parameter type-id='dae78f89'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='snd_soc_dapm_new_controls' mangled-name='snd_soc_dapm_new_controls' filepath='sound/soc/soc-dapm.c' line='3802' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_new_controls'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='3802' column='1'/>
+        <parameter type-id='dae78f89' name='widget' filepath='sound/soc/soc-dapm.c' line='3803' column='1'/>
+        <parameter type-id='95e97e5e' name='num' filepath='sound/soc/soc-dapm.c' line='3804' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_soc_dapm_put_enum_double' mangled-name='snd_soc_dapm_put_enum_double' filepath='sound/soc/soc-dapm.c' line='3495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_put_enum_double'>
@@ -125900,8 +121281,8 @@
         <parameter type-id='144a5d4c' name='ucontrol' filepath='sound/soc/soc-dapm.c' line='3367' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_dapm_sync' mangled-name='snd_soc_dapm_sync' filepath='include/sound/soc-dapm.h' line='487' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_sync'>
-        <parameter type-id='70d004a5'/>
+      <function-decl name='snd_soc_dapm_sync' mangled-name='snd_soc_dapm_sync' filepath='sound/soc/soc-dapm.c' line='2635' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_sync'>
+        <parameter type-id='70d004a5' name='dapm' filepath='sound/soc/soc-dapm.c' line='2635' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_soc_dapm_sync_unlocked' mangled-name='snd_soc_dapm_sync_unlocked' filepath='sound/soc/soc-dapm.c' line='2613' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_dapm_sync_unlocked'>
@@ -126074,9 +121455,9 @@
         <parameter type-id='f0981eeb' name='dai_fmt' filepath='sound/soc/soc-core.c' line='1423' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='snd_soc_set_runtime_hwparams' mangled-name='snd_soc_set_runtime_hwparams' filepath='include/sound/soc.h' line='499' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_set_runtime_hwparams'>
-        <parameter type-id='06b2cd14'/>
-        <parameter type-id='d661a615'/>
+      <function-decl name='snd_soc_set_runtime_hwparams' mangled-name='snd_soc_set_runtime_hwparams' filepath='sound/soc/soc-pcm.c' line='263' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_set_runtime_hwparams'>
+        <parameter type-id='06b2cd14' name='substream' filepath='sound/soc/soc-pcm.c' line='263' column='1'/>
+        <parameter type-id='d661a615' name='hw' filepath='sound/soc/soc-pcm.c' line='264' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='snd_soc_unregister_card' mangled-name='snd_soc_unregister_card' filepath='sound/soc/soc-core.c' line='2209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='snd_soc_unregister_card'>
@@ -126132,9 +121513,9 @@
         <parameter type-id='b50a4934' name='time32' filepath='net/core/sock.c' line='3140' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_init_data' mangled-name='sock_init_data' filepath='include/net/sock.h' line='1763' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_init_data'>
-        <parameter type-id='13103032'/>
-        <parameter type-id='f772df6d'/>
+      <function-decl name='sock_init_data' mangled-name='sock_init_data' filepath='net/core/sock.c' line='2985' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_init_data'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2985' column='1'/>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='2985' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='sock_no_accept' mangled-name='sock_no_accept' filepath='net/core/sock.c' line='2769' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_accept'>
@@ -126155,12 +121536,12 @@
         <parameter type-id='2ae08426' name='vma' filepath='net/core/sock.c' line='2820' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_no_sendpage' mangled-name='sock_no_sendpage' filepath='include/net/sock.h' line='1740' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_sendpage'>
-        <parameter type-id='13103032'/>
-        <parameter type-id='02f11ed4'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='sock_no_sendpage' mangled-name='sock_no_sendpage' filepath='net/core/sock.c' line='2848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_sendpage'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='2848' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='net/core/sock.c' line='2848' column='1'/>
+        <parameter type-id='95e97e5e' name='offset' filepath='net/core/sock.c' line='2848' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='net/core/sock.c' line='2848' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/core/sock.c' line='2848' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
       <function-decl name='sock_no_shutdown' mangled-name='sock_no_shutdown' filepath='net/core/sock.c' line='2795' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_no_shutdown'>
@@ -126173,44 +121554,44 @@
         <parameter type-id='13103032' name='sock2' filepath='net/core/sock.c' line='2763' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_queue_rcv_skb' mangled-name='sock_queue_rcv_skb' filepath='include/net/sock.h' line='2242' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_queue_rcv_skb'>
-        <parameter type-id='f772df6d'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='sock_queue_rcv_skb' mangled-name='sock_queue_rcv_skb' filepath='net/core/sock.c' line='475' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_queue_rcv_skb'>
+        <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='475' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/sock.c' line='475' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_recvmsg' mangled-name='sock_recvmsg' filepath='include/linux/net.h' line='246' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_recvmsg'>
-        <parameter type-id='13103032'/>
-        <parameter type-id='6b9b777a'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='sock_recvmsg' mangled-name='sock_recvmsg' filepath='net/socket.c' line='900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_recvmsg'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='900' column='1'/>
+        <parameter type-id='6b9b777a' name='msg' filepath='net/socket.c' line='900' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='900' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_register' mangled-name='sock_register' filepath='include/linux/net.h' line='235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_register'>
-        <parameter type-id='81a51edb'/>
+      <function-decl name='sock_register' mangled-name='sock_register' filepath='net/socket.c' line='2975' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_register'>
+        <parameter type-id='81a51edb' name='ops' filepath='net/socket.c' line='2975' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_release' mangled-name='sock_release' filepath='include/linux/net.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_release'>
-        <parameter type-id='13103032'/>
+      <function-decl name='sock_release' mangled-name='sock_release' filepath='net/socket.c' line='623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_release'>
+        <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='623' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sock_setsockopt' mangled-name='sock_setsockopt' filepath='include/net/sock.h' line='1689' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_setsockopt'>
-        <parameter type-id='13103032'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='298d29fd'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='sock_setsockopt' mangled-name='sock_setsockopt' filepath='net/core/sock.c' line='833' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_setsockopt'>
+        <parameter type-id='13103032' name='sock' filepath='net/core/sock.c' line='833' column='1'/>
+        <parameter type-id='95e97e5e' name='level' filepath='net/core/sock.c' line='833' column='1'/>
+        <parameter type-id='95e97e5e' name='optname' filepath='net/core/sock.c' line='833' column='1'/>
+        <parameter type-id='298d29fd' name='optval' filepath='net/core/sock.c' line='834' column='1'/>
+        <parameter type-id='f0981eeb' name='optlen' filepath='net/core/sock.c' line='834' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sock_unregister' mangled-name='sock_unregister' filepath='include/linux/net.h' line='236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_unregister'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='sock_unregister' mangled-name='sock_unregister' filepath='net/socket.c' line='3012' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_unregister'>
+        <parameter type-id='95e97e5e' name='family' filepath='net/socket.c' line='3012' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='sock_wfree' mangled-name='sock_wfree' filepath='net/core/sock.c' line='2051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sock_wfree'>
         <parameter type-id='0fbf3cfd' name='skb' filepath='net/core/sock.c' line='2051' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sockfd_lookup' mangled-name='sockfd_lookup' filepath='include/linux/net.h' line='248' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sockfd_lookup'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='sockfd_lookup' mangled-name='sockfd_lookup' filepath='net/socket.c' line='477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sockfd_lookup'>
+        <parameter type-id='95e97e5e' name='fd' filepath='net/socket.c' line='477' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='net/socket.c' line='477' column='1'/>
         <return type-id='13103032'/>
       </function-decl>
       <var-decl name='softnet_data' type-id='035aa62d' mangled-name='softnet_data' visibility='default' filepath='net/core/dev.c' line='403' column='1' elf-symbol-id='softnet_data'/>
@@ -126270,9 +121651,9 @@
         <parameter type-id='e90f4666' name='spi' filepath='drivers/spi/spi.c' line='3344' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='spi_sync' mangled-name='spi_sync' filepath='include/linux/spi/spi.h' line='1249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_sync'>
-        <parameter type-id='e90f4666'/>
-        <parameter type-id='bb7889ed'/>
+      <function-decl name='spi_sync' mangled-name='spi_sync' filepath='drivers/spi/spi.c' line='3885' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_sync'>
+        <parameter type-id='e90f4666' name='spi' filepath='drivers/spi/spi.c' line='3885' column='1'/>
+        <parameter type-id='bb7889ed' name='message' filepath='drivers/spi/spi.c' line='3885' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='spi_sync_locked' mangled-name='spi_sync_locked' filepath='drivers/spi/spi.c' line='3913' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spi_sync_locked'>
@@ -126284,9 +121665,9 @@
         <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2873' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='split_page' mangled-name='split_page' filepath='include/linux/mm.h' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='split_page'>
-        <parameter type-id='02f11ed4'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='split_page' mangled-name='split_page' filepath='mm/page_alloc.c' line='3439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='split_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='3439' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='3439' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='spmi_controller_add' mangled-name='spmi_controller_add' filepath='drivers/spmi/spmi.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_controller_add'>
@@ -126388,18 +121769,18 @@
         <parameter type-id='f8840c23' name='key' filepath='kernel/jump_label.c' line='212' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='static_key_slow_dec' mangled-name='static_key_slow_dec' filepath='include/linux/jump_label.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_slow_dec'>
-        <parameter type-id='f8840c23'/>
+      <function-decl name='static_key_slow_dec' mangled-name='static_key_slow_dec' filepath='kernel/jump_label.c' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_slow_dec'>
+        <parameter type-id='f8840c23' name='key' filepath='kernel/jump_label.c' line='267' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='static_key_slow_inc' mangled-name='static_key_slow_inc' filepath='include/linux/jump_label.h' line='243' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_slow_inc'>
-        <parameter type-id='f8840c23'/>
+      <function-decl name='static_key_slow_inc' mangled-name='static_key_slow_inc' filepath='kernel/jump_label.c' line='156' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='static_key_slow_inc'>
+        <parameter type-id='f8840c23' name='key' filepath='kernel/jump_label.c' line='156' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='stop_machine' mangled-name='stop_machine' filepath='include/linux/stop_machine.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='stop_machine'>
-        <parameter type-id='87dfefa3'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='5f8a1ac4'/>
+      <function-decl name='stop_machine' mangled-name='stop_machine' filepath='kernel/stop_machine.c' line='642' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='stop_machine'>
+        <parameter type-id='87dfefa3' name='fn' filepath='kernel/stop_machine.c' line='642' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/stop_machine.c' line='642' column='1'/>
+        <parameter type-id='5f8a1ac4' name='cpus' filepath='kernel/stop_machine.c' line='642' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='stpcpy' mangled-name='stpcpy' filepath='lib/string.c' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='stpcpy'>
@@ -126417,9 +121798,9 @@
         <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='306' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='strchrnul' mangled-name='strchrnul' filepath='include/linux/string.h' line='63' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strchrnul'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='strchrnul' mangled-name='strchrnul' filepath='lib/string.c' line='452' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strchrnul'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/string.c' line='452' column='1'/>
+        <parameter type-id='95e97e5e' name='c' filepath='lib/string.c' line='452' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='strcpy' mangled-name='strcpy' filepath='lib/string.c' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strcpy'>
@@ -126437,8 +121818,8 @@
         <parameter type-id='77e79a4b' name='filp' filepath='fs/open.c' line='1419' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='strim' mangled-name='strim' filepath='include/linux/string.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strim'>
-        <parameter type-id='26a90f95'/>
+      <function-decl name='strim' mangled-name='strim' filepath='lib/string.c' line='541' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strim'>
+        <parameter type-id='26a90f95' name='s' filepath='lib/string.c' line='541' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='string_get_size' mangled-name='string_get_size' filepath='lib/string_helpers.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='string_get_size'>
@@ -126473,10 +121854,10 @@
         <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='329' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='strnchr' mangled-name='strnchr' filepath='include/linux/string.h' line='67' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strnchr'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='strnchr' mangled-name='strnchr' filepath='lib/string.c' line='506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strnchr'>
+        <parameter type-id='80f4b756' name='s' filepath='lib/string.c' line='506' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='506' column='1'/>
+        <parameter type-id='95e97e5e' name='c' filepath='lib/string.c' line='506' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='strncpy' mangled-name='strncpy' filepath='lib/string.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncpy'>
@@ -126485,21 +121866,21 @@
         <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='114' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='strncpy_from_user' mangled-name='strncpy_from_user' filepath='arch/arm64/include/asm/uaccess.h' line='543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncpy_from_user'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='strncpy_from_user' mangled-name='strncpy_from_user' filepath='lib/strncpy_from_user.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strncpy_from_user'>
+        <parameter type-id='26a90f95' name='dst' filepath='lib/strncpy_from_user.c' line='113' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/strncpy_from_user.c' line='113' column='1'/>
+        <parameter type-id='bd54fe1a' name='count' filepath='lib/strncpy_from_user.c' line='113' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='strndup_user' mangled-name='strndup_user' filepath='include/linux/string.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strndup_user'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='bd54fe1a'/>
+      <function-decl name='strndup_user' mangled-name='strndup_user' filepath='mm/util.c' line='222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strndup_user'>
+        <parameter type-id='80f4b756' name='s' filepath='mm/util.c' line='222' column='1'/>
+        <parameter type-id='bd54fe1a' name='n' filepath='mm/util.c' line='222' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='strnstr' mangled-name='strnstr' filepath='include/linux/string.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strnstr'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='strnstr' mangled-name='strnstr' filepath='lib/string.c' line='1026' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strnstr'>
+        <parameter type-id='80f4b756' name='s1' filepath='lib/string.c' line='1026' column='1'/>
+        <parameter type-id='80f4b756' name='s2' filepath='lib/string.c' line='1026' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='lib/string.c' line='1026' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='strpbrk' mangled-name='strpbrk' filepath='lib/string.c' line='649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strpbrk'>
@@ -126507,15 +121888,15 @@
         <parameter type-id='80f4b756' name='ct' filepath='lib/string.c' line='649' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='strscpy' mangled-name='strscpy' filepath='include/linux/string.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strscpy'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='strscpy' mangled-name='strscpy' filepath='lib/string.c' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strscpy'>
+        <parameter type-id='26a90f95' name='dest' filepath='lib/string.c' line='180' column='1'/>
+        <parameter type-id='80f4b756' name='src' filepath='lib/string.c' line='180' column='1'/>
+        <parameter type-id='b59d7dce' name='count' filepath='lib/string.c' line='180' column='1'/>
         <return type-id='79a0948f'/>
       </function-decl>
-      <function-decl name='strsep' mangled-name='strsep' filepath='include/linux/string.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strsep'>
-        <parameter type-id='9b23c9ad'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='strsep' mangled-name='strsep' filepath='lib/string.c' line='676' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strsep'>
+        <parameter type-id='9b23c9ad' name='s' filepath='lib/string.c' line='676' column='1'/>
+        <parameter type-id='80f4b756' name='ct' filepath='lib/string.c' line='676' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='strspn' mangled-name='strspn' filepath='lib/string.c' line='598' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='strspn'>
@@ -126528,12 +121909,12 @@
         <parameter type-id='80f4b756'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='submit_bio' mangled-name='submit_bio' filepath='include/linux/bio.h' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='submit_bio'>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='submit_bio' mangled-name='submit_bio' filepath='block/blk-core.c' line='1075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='submit_bio'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/blk-core.c' line='1075' column='1'/>
         <return type-id='041bc907'/>
       </function-decl>
-      <function-decl name='submit_bio_wait' mangled-name='submit_bio_wait' filepath='include/linux/bio.h' line='439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='submit_bio_wait'>
-        <parameter type-id='fb55efa1'/>
+      <function-decl name='submit_bio_wait' mangled-name='submit_bio_wait' filepath='block/bio.c' line='1158' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='submit_bio_wait'>
+        <parameter type-id='fb55efa1' name='bio' filepath='block/bio.c' line='1158' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='subsys_system_register' mangled-name='subsys_system_register' filepath='drivers/base/bus.c' line='1157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='subsys_system_register'>
@@ -126541,36 +121922,36 @@
         <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/bus.c' line='1158' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sync_file_create' mangled-name='sync_file_create' filepath='include/linux/sync_file.h' line='58' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_create'>
-        <parameter type-id='28271da3'/>
+      <function-decl name='sync_file_create' mangled-name='sync_file_create' filepath='drivers/dma-buf/sync_file.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_create'>
+        <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/sync_file.c' line='64' column='1'/>
         <return type-id='6a6b0b01'/>
       </function-decl>
-      <function-decl name='sync_file_get_fence' mangled-name='sync_file_get_fence' filepath='include/linux/sync_file.h' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_get_fence'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='sync_file_get_fence' mangled-name='sync_file_get_fence' filepath='drivers/dma-buf/sync_file.c' line='102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_get_fence'>
+        <parameter type-id='95e97e5e' name='fd' filepath='drivers/dma-buf/sync_file.c' line='102' column='1'/>
         <return type-id='28271da3'/>
       </function-decl>
       <function-decl name='synchronize_irq' mangled-name='synchronize_irq' filepath='kernel/irq/manage.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_irq'>
         <parameter type-id='f0981eeb' name='irq' filepath='kernel/irq/manage.c' line='127' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='synchronize_net' mangled-name='synchronize_net' filepath='include/linux/netdevice.h' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_net'>
+      <function-decl name='synchronize_net' mangled-name='synchronize_net' filepath='net/core/dev.c' line='10725' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_net'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='synchronize_rcu' mangled-name='synchronize_rcu' filepath='include/linux/rcupdate.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_rcu'>
+      <function-decl name='synchronize_rcu' mangled-name='synchronize_rcu' filepath='kernel/rcu/tree.c' line='3668' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_rcu'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='synchronize_srcu' mangled-name='synchronize_srcu' filepath='include/linux/srcu.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_srcu'>
-        <parameter type-id='f7d7131a'/>
+      <function-decl name='synchronize_srcu' mangled-name='synchronize_srcu' filepath='kernel/rcu/srcutree.c' line='1009' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='synchronize_srcu'>
+        <parameter type-id='f7d7131a' name='ssp' filepath='kernel/rcu/srcutree.c' line='1009' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='sys_tz' type-id='6751193a' mangled-name='sys_tz' visibility='default' filepath='kernel/time/time.c' line='50' column='1' elf-symbol-id='sys_tz'/>
-      <function-decl name='syscon_node_to_regmap' mangled-name='syscon_node_to_regmap' filepath='include/linux/mfd/syscon.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='syscon_node_to_regmap'>
-        <parameter type-id='9a537bbe'/>
+      <function-decl name='syscon_node_to_regmap' mangled-name='syscon_node_to_regmap' filepath='drivers/mfd/syscon.c' line='183' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='syscon_node_to_regmap'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/mfd/syscon.c' line='183' column='1'/>
         <return type-id='29af9a71'/>
       </function-decl>
-      <function-decl name='syscon_regmap_lookup_by_phandle' mangled-name='syscon_regmap_lookup_by_phandle' filepath='include/linux/mfd/syscon.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='syscon_regmap_lookup_by_phandle'>
-        <parameter type-id='9a537bbe'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='syscon_regmap_lookup_by_phandle' mangled-name='syscon_regmap_lookup_by_phandle' filepath='drivers/mfd/syscon.c' line='208' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='syscon_regmap_lookup_by_phandle'>
+        <parameter type-id='9a537bbe' name='np' filepath='drivers/mfd/syscon.c' line='208' column='1'/>
+        <parameter type-id='80f4b756' name='property' filepath='drivers/mfd/syscon.c' line='209' column='1'/>
         <return type-id='29af9a71'/>
       </function-decl>
       <var-decl name='sysctl_sched_features' type-id='f0981eeb' mangled-name='sysctl_sched_features' visibility='default' filepath='kernel/sched/core.c' line='69' column='1' elf-symbol-id='sysctl_sched_features'/>
@@ -126588,10 +121969,10 @@
         <parameter type-id='80f4b756' name='link_name' filepath='fs/sysfs/group.c' line='383' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sysfs_create_file_ns' mangled-name='sysfs_create_file_ns' filepath='include/linux/sysfs.h' line='249' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_file_ns'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='cfe4f8a2'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='sysfs_create_file_ns' mangled-name='sysfs_create_file_ns' filepath='fs/sysfs/file.c' line='322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_file_ns'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/file.c' line='322' column='1'/>
+        <parameter type-id='cfe4f8a2' name='attr' filepath='fs/sysfs/file.c' line='322' column='1'/>
+        <parameter type-id='eaa32e2f' name='ns' filepath='fs/sysfs/file.c' line='323' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='sysfs_create_files' mangled-name='sysfs_create_files' filepath='fs/sysfs/file.c' line='338' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_files'>
@@ -126604,27 +121985,27 @@
         <parameter type-id='8ff9530e' name='grp' filepath='fs/sysfs/group.c' line='173' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sysfs_create_groups' mangled-name='sysfs_create_groups' filepath='include/linux/sysfs.h' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_groups'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='c97de1ac'/>
+      <function-decl name='sysfs_create_groups' mangled-name='sysfs_create_groups' filepath='fs/sysfs/group.c' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_groups'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='212' column='1'/>
+        <parameter type-id='c97de1ac' name='groups' filepath='fs/sysfs/group.c' line='213' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sysfs_create_link' mangled-name='sysfs_create_link' filepath='include/linux/sysfs.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_link'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='sysfs_create_link' mangled-name='sysfs_create_link' filepath='fs/sysfs/symlink.c' line='89' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_create_link'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/symlink.c' line='89' column='1'/>
+        <parameter type-id='d30bdc51' name='target' filepath='fs/sysfs/symlink.c' line='89' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/sysfs/symlink.c' line='90' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sysfs_emit' mangled-name='sysfs_emit' filepath='include/linux/sysfs.h' line='333' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_emit'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='sysfs_emit' mangled-name='sysfs_emit' filepath='fs/sysfs/file.c' line='721' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_emit'>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/sysfs/file.c' line='721' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='fs/sysfs/file.c' line='721' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sysfs_emit_at' mangled-name='sysfs_emit_at' filepath='include/linux/sysfs.h' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_emit_at'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='sysfs_emit_at' mangled-name='sysfs_emit_at' filepath='fs/sysfs/file.c' line='749' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_emit_at'>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/sysfs/file.c' line='749' column='1'/>
+        <parameter type-id='95e97e5e' name='at' filepath='fs/sysfs/file.c' line='749' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='fs/sysfs/file.c' line='749' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
@@ -126640,15 +122021,15 @@
         <parameter type-id='80f4b756' name='group' filepath='fs/sysfs/file.c' line='514' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sysfs_remove_file_ns' mangled-name='sysfs_remove_file_ns' filepath='include/linux/sysfs.h' line='259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_file_ns'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='cfe4f8a2'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='sysfs_remove_file_ns' mangled-name='sysfs_remove_file_ns' filepath='fs/sysfs/file.c' line='465' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_file_ns'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/file.c' line='465' column='1'/>
+        <parameter type-id='cfe4f8a2' name='attr' filepath='fs/sysfs/file.c' line='465' column='1'/>
+        <parameter type-id='eaa32e2f' name='ns' filepath='fs/sysfs/file.c' line='466' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sysfs_remove_group' mangled-name='sysfs_remove_group' filepath='include/linux/sysfs.h' line='291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_group'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='8ff9530e'/>
+      <function-decl name='sysfs_remove_group' mangled-name='sysfs_remove_group' filepath='fs/sysfs/group.c' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_group'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='270' column='1'/>
+        <parameter type-id='8ff9530e' name='grp' filepath='fs/sysfs/group.c' line='271' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='sysfs_remove_groups' mangled-name='sysfs_remove_groups' filepath='fs/sysfs/group.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_groups'>
@@ -126656,9 +122037,9 @@
         <parameter type-id='c97de1ac' name='groups' filepath='fs/sysfs/group.c' line='306' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sysfs_remove_link' mangled-name='sysfs_remove_link' filepath='include/linux/sysfs.h' line='274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_link'>
-        <parameter type-id='d30bdc51'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='sysfs_remove_link' mangled-name='sysfs_remove_link' filepath='fs/sysfs/symlink.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_link'>
+        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/symlink.c' line='143' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='fs/sysfs/symlink.c' line='143' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='sysfs_remove_link_from_group' mangled-name='sysfs_remove_link_from_group' filepath='fs/sysfs/group.c' line='405' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_remove_link_from_group'>
@@ -126667,9 +122048,9 @@
         <parameter type-id='80f4b756' name='link_name' filepath='fs/sysfs/group.c' line='406' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sysfs_streq' mangled-name='sysfs_streq' filepath='include/linux/string.h' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_streq'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='sysfs_streq' mangled-name='sysfs_streq' filepath='lib/string.c' line='703' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_streq'>
+        <parameter type-id='80f4b756' name='s1' filepath='lib/string.c' line='703' column='1'/>
+        <parameter type-id='80f4b756' name='s2' filepath='lib/string.c' line='703' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='sysfs_update_group' mangled-name='sysfs_update_group' filepath='fs/sysfs/group.c' line='255' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysfs_update_group'>
@@ -126677,7 +122058,7 @@
         <parameter type-id='8ff9530e' name='grp' filepath='fs/sysfs/group.c' line='256' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sysrq_mask' mangled-name='sysrq_mask' filepath='include/linux/sysrq.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysrq_mask'>
+      <function-decl name='sysrq_mask' mangled-name='sysrq_mask' filepath='drivers/tty/sysrq.c' line='74' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sysrq_mask'>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='system_freezing_cnt' type-id='49178f86' mangled-name='system_freezing_cnt' visibility='default' filepath='kernel/freezer.c' line='20' column='1' elf-symbol-id='system_freezing_cnt'/>
@@ -126687,8 +122068,8 @@
       <var-decl name='system_state' type-id='2ead22b4' mangled-name='system_state' visibility='default' filepath='init/main.c' line='129' column='1' elf-symbol-id='system_state'/>
       <var-decl name='system_unbound_wq' type-id='242e3d19' mangled-name='system_unbound_wq' visibility='default' filepath='kernel/workqueue.c' line='354' column='1' elf-symbol-id='system_unbound_wq'/>
       <var-decl name='system_wq' type-id='242e3d19' mangled-name='system_wq' visibility='default' filepath='kernel/workqueue.c' line='348' column='1' elf-symbol-id='system_wq'/>
-      <function-decl name='task_active_pid_ns' mangled-name='task_active_pid_ns' filepath='include/linux/pid_namespace.h' line='87' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='task_active_pid_ns'>
-        <parameter type-id='f23e2572'/>
+      <function-decl name='task_active_pid_ns' mangled-name='task_active_pid_ns' filepath='kernel/pid.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='task_active_pid_ns'>
+        <parameter type-id='f23e2572' name='tsk' filepath='kernel/pid.c' line='508' column='1'/>
         <return type-id='b816e1d0'/>
       </function-decl>
       <function-decl name='task_may_not_preempt' mangled-name='task_may_not_preempt' filepath='kernel/sched/rt.c' line='1479' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='task_may_not_preempt'>
@@ -126774,8 +122155,8 @@
         <parameter type-id='426e425b' name='port' filepath='drivers/usb/typec/tcpm/tcpm.c' line='5522' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='thermal_cdev_update' mangled-name='thermal_cdev_update' filepath='include/linux/thermal.h' line='414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cdev_update'>
-        <parameter type-id='2feec21f'/>
+      <function-decl name='thermal_cdev_update' mangled-name='thermal_cdev_update' filepath='drivers/thermal/thermal_helpers.c' line='188' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cdev_update'>
+        <parameter type-id='2feec21f' name='cdev' filepath='drivers/thermal/thermal_helpers.c' line='188' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='thermal_cooling_device_register' mangled-name='thermal_cooling_device_register' filepath='drivers/thermal/thermal_core.c' line='1169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cooling_device_register'>
@@ -126784,8 +122165,8 @@
         <parameter type-id='6f4dc085' name='ops' filepath='drivers/thermal/thermal_core.c' line='1170' column='1'/>
         <return type-id='2feec21f'/>
       </function-decl>
-      <function-decl name='thermal_cooling_device_unregister' mangled-name='thermal_cooling_device_unregister' filepath='include/linux/thermal.h' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cooling_device_unregister'>
-        <parameter type-id='2feec21f'/>
+      <function-decl name='thermal_cooling_device_unregister' mangled-name='thermal_cooling_device_unregister' filepath='drivers/thermal/thermal_core.c' line='1266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_cooling_device_unregister'>
+        <parameter type-id='2feec21f' name='cdev' filepath='drivers/thermal/thermal_core.c' line='1266' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='thermal_of_cooling_device_register' mangled-name='thermal_of_cooling_device_register' filepath='drivers/thermal/thermal_core.c' line='1192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_of_cooling_device_register'>
@@ -126807,19 +122188,19 @@
         <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_core.c' line='535' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='thermal_zone_device_register' mangled-name='thermal_zone_device_register' filepath='include/linux/thermal.h' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_register'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='1e6fe389'/>
-        <parameter type-id='e2cbf964'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='thermal_zone_device_register' mangled-name='thermal_zone_device_register' filepath='drivers/thermal/thermal_core.c' line='1380' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_register'>
+        <parameter type-id='80f4b756' name='type' filepath='drivers/thermal/thermal_core.c' line='1380' column='1'/>
+        <parameter type-id='95e97e5e' name='trips' filepath='drivers/thermal/thermal_core.c' line='1380' column='1'/>
+        <parameter type-id='95e97e5e' name='mask' filepath='drivers/thermal/thermal_core.c' line='1380' column='1'/>
+        <parameter type-id='eaa32e2f' name='devdata' filepath='drivers/thermal/thermal_core.c' line='1381' column='1'/>
+        <parameter type-id='1e6fe389' name='ops' filepath='drivers/thermal/thermal_core.c' line='1381' column='1'/>
+        <parameter type-id='e2cbf964' name='tzp' filepath='drivers/thermal/thermal_core.c' line='1382' column='1'/>
+        <parameter type-id='95e97e5e' name='passive_delay' filepath='drivers/thermal/thermal_core.c' line='1382' column='1'/>
+        <parameter type-id='95e97e5e' name='polling_delay' filepath='drivers/thermal/thermal_core.c' line='1383' column='1'/>
         <return type-id='404b1300'/>
       </function-decl>
-      <function-decl name='thermal_zone_device_unregister' mangled-name='thermal_zone_device_unregister' filepath='include/linux/thermal.h' line='387' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_unregister'>
-        <parameter type-id='404b1300'/>
+      <function-decl name='thermal_zone_device_unregister' mangled-name='thermal_zone_device_unregister' filepath='drivers/thermal/thermal_core.c' line='1521' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_unregister'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_core.c' line='1521' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='thermal_zone_device_update' mangled-name='thermal_zone_device_update' filepath='drivers/thermal/thermal_core.c' line='549' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_device_update'>
@@ -126831,9 +122212,9 @@
         <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_helpers.c' line='226' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='thermal_zone_get_temp' mangled-name='thermal_zone_get_temp' filepath='include/linux/thermal.h' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_get_temp'>
-        <parameter type-id='404b1300'/>
-        <parameter type-id='7292109c'/>
+      <function-decl name='thermal_zone_get_temp' mangled-name='thermal_zone_get_temp' filepath='drivers/thermal/thermal_helpers.c' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_get_temp'>
+        <parameter type-id='404b1300' name='tz' filepath='drivers/thermal/thermal_helpers.c' line='78' column='1'/>
+        <parameter type-id='7292109c' name='temp' filepath='drivers/thermal/thermal_helpers.c' line='78' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='thermal_zone_get_zone_by_name' mangled-name='thermal_zone_get_zone_by_name' filepath='drivers/thermal/thermal_core.c' line='1589' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thermal_zone_get_zone_by_name'>
@@ -126852,14 +122233,14 @@
         <parameter type-id='404b1300' name='tzd' filepath='drivers/thermal/thermal_of.c' line='552' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='thread_group_cputime_adjusted' mangled-name='thread_group_cputime_adjusted' filepath='include/linux/sched/cputime.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thread_group_cputime_adjusted'>
-        <parameter type-id='f23e2572'/>
-        <parameter type-id='3df9fd28'/>
-        <parameter type-id='3df9fd28'/>
+      <function-decl name='thread_group_cputime_adjusted' mangled-name='thread_group_cputime_adjusted' filepath='kernel/sched/cputime.c' line='639' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='thread_group_cputime_adjusted'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/cputime.c' line='639' column='1'/>
+        <parameter type-id='3df9fd28' name='ut' filepath='kernel/sched/cputime.c' line='639' column='1'/>
+        <parameter type-id='3df9fd28' name='st' filepath='kernel/sched/cputime.c' line='639' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='tick_nohz_get_idle_calls_cpu' mangled-name='tick_nohz_get_idle_calls_cpu' filepath='include/linux/tick.h' line='139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tick_nohz_get_idle_calls_cpu'>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='tick_nohz_get_idle_calls_cpu' mangled-name='tick_nohz_get_idle_calls_cpu' filepath='kernel/time/tick-sched.c' line='1124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tick_nohz_get_idle_calls_cpu'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/time/tick-sched.c' line='1124' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='time64_to_tm' mangled-name='time64_to_tm' filepath='kernel/time/timeconv.c' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='time64_to_tm'>
@@ -126883,21 +122264,21 @@
         <parameter type-id='7359adad' name='th_pressure' filepath='drivers/base/arch_topology.c' line='75' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='touch_softlockup_watchdog' mangled-name='touch_softlockup_watchdog' filepath='include/linux/nmi.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='touch_softlockup_watchdog'>
+      <function-decl name='touch_softlockup_watchdog' mangled-name='touch_softlockup_watchdog' filepath='kernel/watchdog.c' line='262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='touch_softlockup_watchdog'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='trace_event_buffer_commit' mangled-name='trace_event_buffer_commit' filepath='include/linux/trace_events.h' line='244' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_commit'>
-        <parameter type-id='9f548f9a'/>
+      <function-decl name='trace_event_buffer_commit' mangled-name='trace_event_buffer_commit' filepath='kernel/trace/trace.c' line='2857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_commit'>
+        <parameter type-id='9f548f9a' name='fbuffer' filepath='kernel/trace/trace.c' line='2857' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='trace_event_buffer_reserve' mangled-name='trace_event_buffer_reserve' filepath='include/linux/trace_events.h' line='240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_reserve'>
-        <parameter type-id='9f548f9a'/>
-        <parameter type-id='3d4ca6d2'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='trace_event_buffer_reserve' mangled-name='trace_event_buffer_reserve' filepath='kernel/trace/trace_events.c' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_reserve'>
+        <parameter type-id='9f548f9a' name='fbuffer' filepath='kernel/trace/trace_events.c' line='251' column='1'/>
+        <parameter type-id='3d4ca6d2' name='trace_file' filepath='kernel/trace/trace_events.c' line='252' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='kernel/trace/trace_events.c' line='253' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='trace_event_ignore_this_pid' mangled-name='trace_event_ignore_this_pid' filepath='include/linux/trace_events.h' line='595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_ignore_this_pid'>
-        <parameter type-id='3d4ca6d2'/>
+      <function-decl name='trace_event_ignore_this_pid' mangled-name='trace_event_ignore_this_pid' filepath='kernel/trace/trace_events.c' line='232' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_ignore_this_pid'>
+        <parameter type-id='3d4ca6d2' name='trace_file' filepath='kernel/trace/trace_events.c' line='232' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='trace_event_raw_init' mangled-name='trace_event_raw_init' filepath='kernel/trace/trace_events.c' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_raw_init'>
@@ -126910,8 +122291,8 @@
         <parameter type-id='eaa32e2f' name='data' filepath='kernel/trace/trace_events.c' line='287' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='trace_handle_return' mangled-name='trace_handle_return' filepath='include/linux/trace_events.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_handle_return'>
-        <parameter type-id='fc932690'/>
+      <function-decl name='trace_handle_return' mangled-name='trace_handle_return' filepath='kernel/trace/trace.c' line='2593' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_handle_return'>
+        <parameter type-id='fc932690' name='s' filepath='kernel/trace/trace.c' line='2593' column='1'/>
         <return type-id='b1a0a119'/>
       </function-decl>
       <function-decl name='trace_output_call' mangled-name='trace_output_call' filepath='kernel/trace/trace_output.c' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_output_call'>
@@ -126921,24 +122302,24 @@
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='trace_print_array_seq' mangled-name='trace_print_array_seq' filepath='include/linux/trace_events.h' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_array_seq'>
-        <parameter type-id='fc932690'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='trace_print_array_seq' mangled-name='trace_print_array_seq' filepath='kernel/trace/trace_output.c' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_array_seq'>
+        <parameter type-id='fc932690' name='p' filepath='kernel/trace/trace_output.c' line='233' column='1'/>
+        <parameter type-id='eaa32e2f' name='buf' filepath='kernel/trace/trace_output.c' line='233' column='1'/>
+        <parameter type-id='95e97e5e' name='count' filepath='kernel/trace/trace_output.c' line='233' column='1'/>
+        <parameter type-id='b59d7dce' name='el_size' filepath='kernel/trace/trace_output.c' line='234' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='trace_print_bitmask_seq' mangled-name='trace_print_bitmask_seq' filepath='include/linux/trace_events.h' line='37' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_bitmask_seq'>
-        <parameter type-id='fc932690'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='trace_print_bitmask_seq' mangled-name='trace_print_bitmask_seq' filepath='kernel/trace/trace_output.c' line='193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_bitmask_seq'>
+        <parameter type-id='fc932690' name='p' filepath='kernel/trace/trace_output.c' line='193' column='1'/>
+        <parameter type-id='eaa32e2f' name='bitmask_ptr' filepath='kernel/trace/trace_output.c' line='193' column='1'/>
+        <parameter type-id='f0981eeb' name='bitmask_size' filepath='kernel/trace/trace_output.c' line='194' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='trace_print_flags_seq' mangled-name='trace_print_flags_seq' filepath='include/linux/trace_events.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_flags_seq'>
-        <parameter type-id='fc932690'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='49526a0d'/>
+      <function-decl name='trace_print_flags_seq' mangled-name='trace_print_flags_seq' filepath='kernel/trace/trace_output.c' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_flags_seq'>
+        <parameter type-id='fc932690' name='p' filepath='kernel/trace/trace_output.c' line='65' column='1'/>
+        <parameter type-id='80f4b756' name='delim' filepath='kernel/trace/trace_output.c' line='65' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='kernel/trace/trace_output.c' line='66' column='1'/>
+        <parameter type-id='49526a0d' name='flag_array' filepath='kernel/trace/trace_output.c' line='67' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
       <function-decl name='trace_print_hex_seq' mangled-name='trace_print_hex_seq' filepath='kernel/trace/trace_output.c' line='217' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_hex_seq'>
@@ -126948,32 +122329,32 @@
         <parameter type-id='b50a4934' name='concatenate' filepath='kernel/trace/trace_output.c' line='218' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='trace_print_symbols_seq' mangled-name='trace_print_symbols_seq' filepath='include/linux/trace_events.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_symbols_seq'>
-        <parameter type-id='fc932690'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='49526a0d'/>
+      <function-decl name='trace_print_symbols_seq' mangled-name='trace_print_symbols_seq' filepath='kernel/trace/trace_output.c' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_print_symbols_seq'>
+        <parameter type-id='fc932690' name='p' filepath='kernel/trace/trace_output.c' line='103' column='1'/>
+        <parameter type-id='7359adad' name='val' filepath='kernel/trace/trace_output.c' line='103' column='1'/>
+        <parameter type-id='49526a0d' name='symbol_array' filepath='kernel/trace/trace_output.c' line='104' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='trace_raw_output_prep' mangled-name='trace_raw_output_prep' filepath='include/linux/trace_events.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_raw_output_prep'>
-        <parameter type-id='18881289'/>
-        <parameter type-id='fb7d87a1'/>
+      <function-decl name='trace_raw_output_prep' mangled-name='trace_raw_output_prep' filepath='kernel/trace/trace_output.c' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_raw_output_prep'>
+        <parameter type-id='18881289' name='iter' filepath='kernel/trace/trace_output.c' line='292' column='1'/>
+        <parameter type-id='fb7d87a1' name='trace_event' filepath='kernel/trace/trace_output.c' line='293' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='trace_seq_printf' mangled-name='trace_seq_printf' filepath='include/linux/trace_seq.h' line='77' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_seq_printf'>
-        <parameter type-id='fc932690'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='trace_seq_printf' mangled-name='trace_seq_printf' filepath='kernel/trace/trace_seq.c' line='81' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_seq_printf'>
+        <parameter type-id='fc932690' name='s' filepath='kernel/trace/trace_seq.c' line='81' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/trace/trace_seq.c' line='81' column='1'/>
         <parameter is-variadic='yes'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='trace_seq_putc' mangled-name='trace_seq_putc' filepath='include/linux/trace_seq.h' line='86' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_seq_putc'>
-        <parameter type-id='fc932690'/>
-        <parameter type-id='002ac4a6'/>
+      <function-decl name='trace_seq_putc' mangled-name='trace_seq_putc' filepath='kernel/trace/trace_seq.c' line='233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_seq_putc'>
+        <parameter type-id='fc932690' name='s' filepath='kernel/trace/trace_seq.c' line='233' column='1'/>
+        <parameter type-id='002ac4a6' name='c' filepath='kernel/trace/trace_seq.c' line='233' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='tracepoint_probe_register' mangled-name='tracepoint_probe_register' filepath='include/linux/tracepoint.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tracepoint_probe_register'>
-        <parameter type-id='08e531de'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='tracepoint_probe_register' mangled-name='tracepoint_probe_register' filepath='kernel/tracepoint.c' line='550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tracepoint_probe_register'>
+        <parameter type-id='08e531de' name='tp' filepath='kernel/tracepoint.c' line='550' column='1'/>
+        <parameter type-id='eaa32e2f' name='probe' filepath='kernel/tracepoint.c' line='550' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='kernel/tracepoint.c' line='550' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='tracepoint_probe_unregister' mangled-name='tracepoint_probe_unregister' filepath='kernel/tracepoint.c' line='564' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tracepoint_probe_unregister'>
@@ -126982,8 +122363,8 @@
         <parameter type-id='eaa32e2f' name='data' filepath='kernel/tracepoint.c' line='564' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='try_module_get' mangled-name='try_module_get' filepath='include/linux/module.h' line='644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='try_module_get'>
-        <parameter type-id='2730d015'/>
+      <function-decl name='try_module_get' mangled-name='try_module_get' filepath='kernel/module.c' line='1139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='try_module_get'>
+        <parameter type-id='2730d015' name='module' filepath='kernel/module.c' line='1139' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='try_to_del_timer_sync' mangled-name='try_to_del_timer_sync' filepath='kernel/time/timer.c' line='1229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='try_to_del_timer_sync'>
@@ -127009,8 +122390,8 @@
         <parameter type-id='b59d7dce' name='size' filepath='drivers/tty/tty_buffer.c' line='312' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='tty_kref_put' mangled-name='tty_kref_put' filepath='include/linux/tty.h' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_kref_put'>
-        <parameter type-id='572fbdca'/>
+      <function-decl name='tty_kref_put' mangled-name='tty_kref_put' filepath='drivers/tty/tty_io.c' line='1570' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_kref_put'>
+        <parameter type-id='572fbdca' name='tty' filepath='drivers/tty/tty_io.c' line='1570' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='tty_mode_ioctl' mangled-name='tty_mode_ioctl' filepath='drivers/tty/tty_ioctl.c' line='663' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_mode_ioctl'>
@@ -127024,13 +122405,13 @@
         <parameter type-id='ec77b5b8' name='port' filepath='drivers/tty/tty_port.c' line='283' column='1'/>
         <return type-id='572fbdca'/>
       </function-decl>
-      <function-decl name='tty_register_ldisc' mangled-name='tty_register_ldisc' filepath='include/linux/tty.h' line='722' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_register_ldisc'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='9d632ac5'/>
+      <function-decl name='tty_register_ldisc' mangled-name='tty_register_ldisc' filepath='drivers/tty/tty_ldisc.c' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_register_ldisc'>
+        <parameter type-id='95e97e5e' name='disc' filepath='drivers/tty/tty_ldisc.c' line='61' column='1'/>
+        <parameter type-id='9d632ac5' name='new_ldisc' filepath='drivers/tty/tty_ldisc.c' line='61' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='tty_termios_baud_rate' mangled-name='tty_termios_baud_rate' filepath='include/linux/tty.h' line='529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_termios_baud_rate'>
-        <parameter type-id='e55856e5'/>
+      <function-decl name='tty_termios_baud_rate' mangled-name='tty_termios_baud_rate' filepath='drivers/tty/tty_baudrate.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_termios_baud_rate'>
+        <parameter type-id='e55856e5' name='termios' filepath='drivers/tty/tty_baudrate.c' line='57' column='1'/>
         <return type-id='6a8e8a14'/>
       </function-decl>
       <function-decl name='tty_termios_encode_baud_rate' mangled-name='tty_termios_encode_baud_rate' filepath='drivers/tty/tty_baudrate.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='tty_termios_encode_baud_rate'>
@@ -127066,11 +122447,11 @@
         <parameter type-id='7292109c' name='index' filepath='drivers/tty/serial/serial_core.c' line='2649' column='1'/>
         <return type-id='c2b4b27b'/>
       </function-decl>
-      <function-decl name='uart_console_write' mangled-name='uart_console_write' filepath='include/linux/serial_core.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_console_write'>
-        <parameter type-id='af051c69'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='c6b7d75f'/>
+      <function-decl name='uart_console_write' mangled-name='uart_console_write' filepath='drivers/tty/serial/serial_core.c' line='1962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_console_write'>
+        <parameter type-id='af051c69' name='port' filepath='drivers/tty/serial/serial_core.c' line='1962' column='1'/>
+        <parameter type-id='80f4b756' name='s' filepath='drivers/tty/serial/serial_core.c' line='1962' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='drivers/tty/serial/serial_core.c' line='1963' column='1'/>
+        <parameter type-id='c6b7d75f' name='putchar' filepath='drivers/tty/serial/serial_core.c' line='1964' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='uart_get_baud_rate' mangled-name='uart_get_baud_rate' filepath='drivers/tty/serial/serial_core.c' line='401' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uart_get_baud_rate'>
@@ -127199,9 +122580,9 @@
         <parameter type-id='9c02cf50' name='dev_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='298' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ufshcd_pltfrm_init' mangled-name='ufshcd_pltfrm_init' filepath='drivers/scsi/ufs/ufshcd-pltfrm.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_pltfrm_init'>
-        <parameter type-id='db362995'/>
-        <parameter type-id='52ab0d0f'/>
+      <function-decl name='ufshcd_pltfrm_init' mangled-name='ufshcd_pltfrm_init' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_pltfrm_init'>
+        <parameter type-id='db362995' name='pdev' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='322' column='1'/>
+        <parameter type-id='52ab0d0f' name='vops' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='323' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='ufshcd_pltfrm_shutdown' mangled-name='ufshcd_pltfrm_shutdown' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='180' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_pltfrm_shutdown'>
@@ -127282,15 +122663,15 @@
         <parameter type-id='fb1092f1' name='info' filepath='drivers/uio/uio.c' line='1042' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unlock_page' mangled-name='unlock_page' filepath='include/linux/pagemap.h' line='591' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unlock_page'>
-        <parameter type-id='02f11ed4'/>
+      <function-decl name='unlock_page' mangled-name='unlock_page' filepath='mm/filemap.c' line='1468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unlock_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/filemap.c' line='1468' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unmap_mapping_range' mangled-name='unmap_mapping_range' filepath='include/linux/mm.h' line='1838' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unmap_mapping_range'>
-        <parameter type-id='f57039f0'/>
-        <parameter type-id='bf352dfe'/>
-        <parameter type-id='bf352dfe'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='unmap_mapping_range' mangled-name='unmap_mapping_range' filepath='mm/memory.c' line='3538' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unmap_mapping_range'>
+        <parameter type-id='f57039f0' name='mapping' filepath='mm/memory.c' line='3538' column='1'/>
+        <parameter type-id='bf352dfe' name='holebegin' filepath='mm/memory.c' line='3539' column='1'/>
+        <parameter type-id='bf352dfe' name='holelen' filepath='mm/memory.c' line='3539' column='1'/>
+        <parameter type-id='95e97e5e' name='even_cows' filepath='mm/memory.c' line='3539' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
@@ -127311,8 +122692,8 @@
         <parameter type-id='f0981eeb' name='count' filepath='fs/char_dev.c' line='311' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unregister_filesystem' mangled-name='unregister_filesystem' filepath='include/linux/fs.h' line='2361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_filesystem'>
-        <parameter type-id='21e53d44'/>
+      <function-decl name='unregister_filesystem' mangled-name='unregister_filesystem' filepath='fs/filesystems.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_filesystem'>
+        <parameter type-id='21e53d44' name='fs' filepath='fs/filesystems.c' line='108' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='unregister_inet6addr_notifier' mangled-name='unregister_inet6addr_notifier' filepath='net/ipv6/addrconf_core.c' line='101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_inet6addr_notifier'>
@@ -127327,17 +122708,17 @@
         <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10793' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unregister_netdevice_many' mangled-name='unregister_netdevice_many' filepath='include/linux/netdevice.h' line='2913' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_many'>
-        <parameter type-id='e84b031a'/>
+      <function-decl name='unregister_netdevice_many' mangled-name='unregister_netdevice_many' filepath='net/core/dev.c' line='10769' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_many'>
+        <parameter type-id='e84b031a' name='head' filepath='net/core/dev.c' line='10769' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unregister_netdevice_notifier' mangled-name='unregister_netdevice_notifier' filepath='include/linux/netdevice.h' line='2744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_notifier'>
-        <parameter type-id='d504f73d'/>
+      <function-decl name='unregister_netdevice_notifier' mangled-name='unregister_netdevice_notifier' filepath='net/core/dev.c' line='1876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_notifier'>
+        <parameter type-id='d504f73d' name='nb' filepath='net/core/dev.c' line='1876' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='unregister_netdevice_queue' mangled-name='unregister_netdevice_queue' filepath='include/linux/netdevice.h' line='2912' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_queue'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='e84b031a'/>
+      <function-decl name='unregister_netdevice_queue' mangled-name='unregister_netdevice_queue' filepath='net/core/dev.c' line='10748' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netdevice_queue'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10748' column='1'/>
+        <parameter type-id='e84b031a' name='head' filepath='net/core/dev.c' line='10748' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unregister_netevent_notifier' mangled-name='unregister_netevent_notifier' filepath='net/core/netevent.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_netevent_notifier'>
@@ -127348,8 +122729,8 @@
         <parameter type-id='d504f73d' name='nb' filepath='mm/oom_kill.c' line='1081' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='unregister_pernet_device' mangled-name='unregister_pernet_device' filepath='include/net/net_namespace.h' line='422' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_pernet_device'>
-        <parameter type-id='d6907f4c'/>
+      <function-decl name='unregister_pernet_device' mangled-name='unregister_pernet_device' filepath='net/core/net_namespace.c' line='1343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_pernet_device'>
+        <parameter type-id='d6907f4c' name='ops' filepath='net/core/net_namespace.c' line='1343' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unregister_pernet_subsys' mangled-name='unregister_pernet_subsys' filepath='net/core/net_namespace.c' line='1295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_pernet_subsys'>
@@ -127376,12 +122757,12 @@
         <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='424' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unregister_syscore_ops' mangled-name='unregister_syscore_ops' filepath='include/linux/syscore_ops.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_syscore_ops'>
-        <parameter type-id='cbd24a98'/>
+      <function-decl name='unregister_syscore_ops' mangled-name='unregister_syscore_ops' filepath='drivers/base/syscore.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_syscore_ops'>
+        <parameter type-id='cbd24a98' name='ops' filepath='drivers/base/syscore.c' line='34' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unregister_sysctl_table' mangled-name='unregister_sysctl_table' filepath='include/linux/sysctl.h' line='195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_sysctl_table'>
-        <parameter type-id='11b101bb'/>
+      <function-decl name='unregister_sysctl_table' mangled-name='unregister_sysctl_table' filepath='fs/proc/proc_sysctl.c' line='1656' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_sysctl_table'>
+        <parameter type-id='11b101bb' name='header' filepath='fs/proc/proc_sysctl.c' line='1656' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unregister_virtio_device' mangled-name='unregister_virtio_device' filepath='drivers/virtio/virtio.c' line='393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_virtio_device'>
@@ -127400,12 +122781,12 @@
         <parameter type-id='a965a5b5' name='sem' filepath='kernel/locking/semaphore.c' line='178' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='up_read' mangled-name='up_read' filepath='include/linux/rwsem.h' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up_read'>
-        <parameter type-id='9b58df93'/>
+      <function-decl name='up_read' mangled-name='up_read' filepath='kernel/locking/rwsem.c' line='1607' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up_read'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1607' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='up_write' mangled-name='up_write' filepath='include/linux/rwsem.h' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up_write'>
-        <parameter type-id='9b58df93'/>
+      <function-decl name='up_write' mangled-name='up_write' filepath='kernel/locking/rwsem.c' line='1617' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='up_write'>
+        <parameter type-id='9b58df93' name='sem' filepath='kernel/locking/rwsem.c' line='1617' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='update_devfreq' mangled-name='update_devfreq' filepath='drivers/devfreq/devfreq.c' line='394' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='update_devfreq'>
@@ -127434,9 +122815,9 @@
         <parameter type-id='e835b5d8' name='dma' filepath='drivers/usb/core/usb.c' line='925' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='usb_alloc_urb' mangled-name='usb_alloc_urb' filepath='include/linux/usb.h' line='1751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_alloc_urb'>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='usb_alloc_urb' mangled-name='usb_alloc_urb' filepath='drivers/usb/core/urb.c' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_alloc_urb'>
+        <parameter type-id='95e97e5e' name='iso_packets' filepath='drivers/usb/core/urb.c' line='70' column='1'/>
+        <parameter type-id='3eb7c31c' name='mem_flags' filepath='drivers/usb/core/urb.c' line='70' column='1'/>
         <return type-id='ab85b8f2'/>
       </function-decl>
       <function-decl name='usb_amd_dev_put' mangled-name='usb_amd_dev_put' filepath='drivers/usb/host/pci-quirks.c' line='513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_dev_put'>
@@ -127454,17 +122835,17 @@
       <function-decl name='usb_amd_quirk_pll_enable' mangled-name='usb_amd_quirk_pll_enable' filepath='drivers/usb/host/pci-quirks.c' line='507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_amd_quirk_pll_enable'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_anchor_urb' mangled-name='usb_anchor_urb' filepath='include/linux/usb.h' line='1767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_anchor_urb'>
-        <parameter type-id='ab85b8f2'/>
-        <parameter type-id='bd300bf3'/>
+      <function-decl name='usb_anchor_urb' mangled-name='usb_anchor_urb' filepath='drivers/usb/core/urb.c' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_anchor_urb'>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/urb.c' line='126' column='1'/>
+        <parameter type-id='bd300bf3' name='anchor' filepath='drivers/usb/core/urb.c' line='126' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_autopm_get_interface' mangled-name='usb_autopm_get_interface' filepath='include/linux/usb.h' line='788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_get_interface'>
-        <parameter type-id='8bf48c31'/>
+      <function-decl name='usb_autopm_get_interface' mangled-name='usb_autopm_get_interface' filepath='drivers/usb/core/driver.c' line='1825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_get_interface'>
+        <parameter type-id='8bf48c31' name='intf' filepath='drivers/usb/core/driver.c' line='1825' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_autopm_put_interface' mangled-name='usb_autopm_put_interface' filepath='include/linux/usb.h' line='789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_put_interface'>
-        <parameter type-id='8bf48c31'/>
+      <function-decl name='usb_autopm_put_interface' mangled-name='usb_autopm_put_interface' filepath='drivers/usb/core/driver.c' line='1747' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_put_interface'>
+        <parameter type-id='8bf48c31' name='intf' filepath='drivers/usb/core/driver.c' line='1747' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usb_bulk_msg' mangled-name='usb_bulk_msg' filepath='drivers/usb/core/message.c' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_bulk_msg'>
@@ -127483,16 +122864,16 @@
         <parameter type-id='95e97e5e' name='bytecount' filepath='drivers/usb/core/hcd.c' line='1093' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='usb_control_msg' mangled-name='usb_control_msg' filepath='include/linux/usb.h' line='1829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_control_msg'>
-        <parameter type-id='25e60cb2'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='8f048e17'/>
-        <parameter type-id='8f048e17'/>
-        <parameter type-id='d315442e'/>
-        <parameter type-id='d315442e'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='d315442e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='usb_control_msg' mangled-name='usb_control_msg' filepath='drivers/usb/core/message.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_control_msg'>
+        <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/message.c' line='136' column='1'/>
+        <parameter type-id='f0981eeb' name='pipe' filepath='drivers/usb/core/message.c' line='136' column='1'/>
+        <parameter type-id='8f048e17' name='request' filepath='drivers/usb/core/message.c' line='136' column='1'/>
+        <parameter type-id='8f048e17' name='requesttype' filepath='drivers/usb/core/message.c' line='137' column='1'/>
+        <parameter type-id='d315442e' name='value' filepath='drivers/usb/core/message.c' line='137' column='1'/>
+        <parameter type-id='d315442e' name='index' filepath='drivers/usb/core/message.c' line='137' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/usb/core/message.c' line='137' column='1'/>
+        <parameter type-id='d315442e' name='size' filepath='drivers/usb/core/message.c' line='138' column='1'/>
+        <parameter type-id='95e97e5e' name='timeout' filepath='drivers/usb/core/message.c' line='138' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usb_copy_descriptors' mangled-name='usb_copy_descriptors' filepath='drivers/usb/gadget/config.c' line='122' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_copy_descriptors'>
@@ -127512,31 +122893,32 @@
         <parameter type-id='fc4f83c1' name='primary_hcd' filepath='drivers/usb/core/hcd.c' line='2516' column='1'/>
         <return type-id='fc4f83c1'/>
       </function-decl>
-      <function-decl name='usb_deregister' mangled-name='usb_deregister' filepath='include/linux/usb.h' line='1320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_deregister'>
-        <parameter type-id='46ae908a'/>
+      <var-decl name='usb_debug_root' type-id='27675065' mangled-name='usb_debug_root' visibility='default' filepath='drivers/usb/common/common.c' line='396' column='1' elf-symbol-id='usb_debug_root'/>
+      <function-decl name='usb_deregister' mangled-name='usb_deregister' filepath='drivers/usb/core/driver.c' line='1100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_deregister'>
+        <parameter type-id='46ae908a' name='driver' filepath='drivers/usb/core/driver.c' line='1100' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usb_disabled' mangled-name='usb_disabled' filepath='drivers/usb/core/usb.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_disabled'>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_driver_claim_interface' mangled-name='usb_driver_claim_interface' filepath='include/linux/usb.h' line='864' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_driver_claim_interface'>
-        <parameter type-id='46ae908a'/>
-        <parameter type-id='8bf48c31'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='usb_driver_claim_interface' mangled-name='usb_driver_claim_interface' filepath='drivers/usb/core/driver.c' line='540' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_driver_claim_interface'>
+        <parameter type-id='46ae908a' name='driver' filepath='drivers/usb/core/driver.c' line='540' column='1'/>
+        <parameter type-id='8bf48c31' name='iface' filepath='drivers/usb/core/driver.c' line='541' column='1'/>
+        <parameter type-id='eaa32e2f' name='priv' filepath='drivers/usb/core/driver.c' line='541' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_driver_release_interface' mangled-name='usb_driver_release_interface' filepath='include/linux/usb.h' line='885' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_driver_release_interface'>
-        <parameter type-id='46ae908a'/>
-        <parameter type-id='8bf48c31'/>
+      <function-decl name='usb_driver_release_interface' mangled-name='usb_driver_release_interface' filepath='drivers/usb/core/driver.c' line='614' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_driver_release_interface'>
+        <parameter type-id='46ae908a' name='driver' filepath='drivers/usb/core/driver.c' line='614' column='1'/>
+        <parameter type-id='8bf48c31' name='iface' filepath='drivers/usb/core/driver.c' line='615' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usb_enable_autosuspend' mangled-name='usb_enable_autosuspend' filepath='drivers/usb/core/driver.c' line='1649' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_enable_autosuspend'>
         <parameter type-id='25e60cb2' name='udev' filepath='drivers/usb/core/driver.c' line='1649' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_ep_alloc_request' mangled-name='usb_ep_alloc_request' filepath='include/linux/usb/gadget.h' line='258' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_alloc_request'>
-        <parameter type-id='63a08bf7'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='usb_ep_alloc_request' mangled-name='usb_ep_alloc_request' filepath='drivers/usb/gadget/udc/core.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_alloc_request'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='175' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_flags' filepath='drivers/usb/gadget/udc/core.c' line='176' column='1'/>
         <return type-id='1a494567'/>
       </function-decl>
       <function-decl name='usb_ep_autoconfig' mangled-name='usb_ep_autoconfig' filepath='drivers/usb/gadget/epautoconf.c' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_autoconfig'>
@@ -127548,9 +122930,9 @@
         <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='369' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_ep_dequeue' mangled-name='usb_ep_dequeue' filepath='include/linux/usb/gadget.h' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_dequeue'>
-        <parameter type-id='63a08bf7'/>
-        <parameter type-id='1a494567'/>
+      <function-decl name='usb_ep_dequeue' mangled-name='usb_ep_dequeue' filepath='drivers/usb/gadget/udc/core.c' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_dequeue'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='309' column='1'/>
+        <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/udc/core.c' line='309' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usb_ep_disable' mangled-name='usb_ep_disable' filepath='drivers/usb/gadget/udc/core.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_disable'>
@@ -127569,15 +122951,15 @@
         <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='424' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_ep_free_request' mangled-name='usb_ep_free_request' filepath='include/linux/usb/gadget.h' line='259' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_free_request'>
-        <parameter type-id='63a08bf7'/>
-        <parameter type-id='1a494567'/>
+      <function-decl name='usb_ep_free_request' mangled-name='usb_ep_free_request' filepath='drivers/usb/gadget/udc/core.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_free_request'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='197' column='1'/>
+        <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/udc/core.c' line='198' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_ep_queue' mangled-name='usb_ep_queue' filepath='include/linux/usb/gadget.h' line='260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_queue'>
-        <parameter type-id='63a08bf7'/>
-        <parameter type-id='1a494567'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='usb_ep_queue' mangled-name='usb_ep_queue' filepath='drivers/usb/gadget/udc/core.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_queue'>
+        <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='273' column='1'/>
+        <parameter type-id='1a494567' name='req' filepath='drivers/usb/gadget/udc/core.c' line='274' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_flags' filepath='drivers/usb/gadget/udc/core.c' line='274' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usb_ep_set_halt' mangled-name='usb_ep_set_halt' filepath='drivers/usb/gadget/udc/core.c' line='343' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ep_set_halt'>
@@ -127591,8 +122973,8 @@
         <parameter type-id='cf29c9b3' name='dma' filepath='drivers/usb/core/usb.c' line='945' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_free_urb' mangled-name='usb_free_urb' filepath='include/linux/usb.h' line='1752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_urb'>
-        <parameter type-id='ab85b8f2'/>
+      <function-decl name='usb_free_urb' mangled-name='usb_free_urb' filepath='drivers/usb/core/urb.c' line='93' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_urb'>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/urb.c' line='93' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usb_function_register' mangled-name='usb_function_register' filepath='drivers/usb/gadget/functions.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_function_register'>
@@ -127603,30 +122985,30 @@
         <parameter type-id='f666bcc1' name='fd' filepath='drivers/usb/gadget/functions.c' line='111' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_gadget_probe_driver' mangled-name='usb_gadget_probe_driver' filepath='include/linux/usb/gadget.h' line='775' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_probe_driver'>
-        <parameter type-id='9762ede1'/>
+      <function-decl name='usb_gadget_probe_driver' mangled-name='usb_gadget_probe_driver' filepath='drivers/usb/gadget/udc/core.c' line='1530' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_probe_driver'>
+        <parameter type-id='9762ede1' name='driver' filepath='drivers/usb/gadget/udc/core.c' line='1530' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_gadget_set_state' mangled-name='usb_gadget_set_state' filepath='include/linux/usb/gadget.h' line='900' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_set_state'>
-        <parameter type-id='49a58c0c'/>
-        <parameter type-id='901a91cb'/>
+      <function-decl name='usb_gadget_set_state' mangled-name='usb_gadget_set_state' filepath='drivers/usb/gadget/udc/core.c' line='1039' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_set_state'>
+        <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='1039' column='1'/>
+        <parameter type-id='901a91cb' name='state' filepath='drivers/usb/gadget/udc/core.c' line='1040' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_gadget_unregister_driver' mangled-name='usb_gadget_unregister_driver' filepath='include/linux/usb/gadget.h' line='790' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_unregister_driver'>
-        <parameter type-id='9762ede1'/>
+      <function-decl name='usb_gadget_unregister_driver' mangled-name='usb_gadget_unregister_driver' filepath='drivers/usb/gadget/udc/core.c' line='1577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_unregister_driver'>
+        <parameter type-id='9762ede1' name='driver' filepath='drivers/usb/gadget/udc/core.c' line='1577' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_gadget_vbus_draw' mangled-name='usb_gadget_vbus_draw' filepath='include/linux/usb/gadget.h' line='623' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_vbus_draw'>
-        <parameter type-id='49a58c0c'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='usb_gadget_vbus_draw' mangled-name='usb_gadget_vbus_draw' filepath='drivers/usb/gadget/udc/core.c' line='609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gadget_vbus_draw'>
+        <parameter type-id='49a58c0c' name='gadget' filepath='drivers/usb/gadget/udc/core.c' line='609' column='1'/>
+        <parameter type-id='f0981eeb' name='mA' filepath='drivers/usb/gadget/udc/core.c' line='609' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usb_get_dev' mangled-name='usb_get_dev' filepath='drivers/usb/core/usb.c' line='694' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_dev'>
         <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='694' column='1'/>
         <return type-id='25e60cb2'/>
       </function-decl>
-      <function-decl name='usb_get_from_anchor' mangled-name='usb_get_from_anchor' filepath='include/linux/usb.h' line='1771' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_from_anchor'>
-        <parameter type-id='bd300bf3'/>
+      <function-decl name='usb_get_from_anchor' mangled-name='usb_get_from_anchor' filepath='drivers/usb/core/urb.c' line='982' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_from_anchor'>
+        <parameter type-id='bd300bf3' name='anchor' filepath='drivers/usb/core/urb.c' line='982' column='1'/>
         <return type-id='ab85b8f2'/>
       </function-decl>
       <function-decl name='usb_get_gadget_udc_name' mangled-name='usb_get_gadget_udc_name' filepath='drivers/usb/gadget/udc/core.c' line='1393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_gadget_udc_name'>
@@ -127695,9 +123077,9 @@
         <parameter type-id='95e97e5e' name='port1' filepath='drivers/usb/core/hub.c' line='6121' column='1'/>
         <return type-id='25e60cb2'/>
       </function-decl>
-      <function-decl name='usb_ifnum_to_if' mangled-name='usb_ifnum_to_if' filepath='include/linux/usb.h' line='895' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ifnum_to_if'>
-        <parameter type-id='ca2b80c9'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='usb_ifnum_to_if' mangled-name='usb_ifnum_to_if' filepath='drivers/usb/core/usb.c' line='272' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_ifnum_to_if'>
+        <parameter type-id='ca2b80c9' name='dev' filepath='drivers/usb/core/usb.c' line='272' column='1'/>
+        <parameter type-id='f0981eeb' name='ifnum' filepath='drivers/usb/core/usb.c' line='273' column='1'/>
         <return type-id='8bf48c31'/>
       </function-decl>
       <function-decl name='usb_interface_id' mangled-name='usb_interface_id' filepath='drivers/usb/gadget/composite.c' line='466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_interface_id'>
@@ -127726,18 +123108,18 @@
         <parameter type-id='6614aa5e' name='fi' filepath='drivers/usb/gadget/functions.c' line='69' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_put_hcd' mangled-name='usb_put_hcd' filepath='include/linux/usb/hcd.h' line='476' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_hcd'>
-        <parameter type-id='fc4f83c1'/>
+      <function-decl name='usb_put_hcd' mangled-name='usb_put_hcd' filepath='drivers/usb/core/hcd.c' line='2578' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_put_hcd'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2578' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_queue_reset_device' mangled-name='usb_queue_reset_device' filepath='include/linux/usb.h' line='768' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_queue_reset_device'>
-        <parameter type-id='8bf48c31'/>
+      <function-decl name='usb_queue_reset_device' mangled-name='usb_queue_reset_device' filepath='drivers/usb/core/hub.c' line='6100' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_queue_reset_device'>
+        <parameter type-id='8bf48c31' name='iface' filepath='drivers/usb/core/hub.c' line='6100' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_register_driver' mangled-name='usb_register_driver' filepath='include/linux/usb.h' line='1313' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_driver'>
-        <parameter type-id='46ae908a'/>
-        <parameter type-id='2730d015'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='usb_register_driver' mangled-name='usb_register_driver' filepath='drivers/usb/core/driver.c' line='1047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_driver'>
+        <parameter type-id='46ae908a' name='new_driver' filepath='drivers/usb/core/driver.c' line='1047' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/usb/core/driver.c' line='1047' column='1'/>
+        <parameter type-id='80f4b756' name='mod_name' filepath='drivers/usb/core/driver.c' line='1048' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usb_register_notify' mangled-name='usb_register_notify' filepath='drivers/usb/core/notify.c' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_register_notify'>
@@ -127748,44 +123130,44 @@
         <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2866' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_role_switch_get' mangled-name='usb_role_switch_get' filepath='include/linux/usb/role.h' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_get'>
-        <parameter type-id='fa0b179b'/>
+      <function-decl name='usb_role_switch_get' mangled-name='usb_role_switch_get' filepath='drivers/usb/roles/class.c' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_get'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/usb/roles/class.c' line='123' column='1'/>
         <return type-id='3e3cd44f'/>
       </function-decl>
       <function-decl name='usb_role_switch_get_drvdata' mangled-name='usb_role_switch_get_drvdata' filepath='drivers/usb/roles/class.c' line='376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_get_drvdata'>
         <parameter type-id='3e3cd44f' name='sw' filepath='drivers/usb/roles/class.c' line='376' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='usb_role_switch_put' mangled-name='usb_role_switch_put' filepath='include/linux/usb/role.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_put'>
-        <parameter type-id='3e3cd44f'/>
+      <function-decl name='usb_role_switch_put' mangled-name='usb_role_switch_put' filepath='drivers/usb/roles/class.c' line='167' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_put'>
+        <parameter type-id='3e3cd44f' name='sw' filepath='drivers/usb/roles/class.c' line='167' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_role_switch_register' mangled-name='usb_role_switch_register' filepath='include/linux/usb/role.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_register'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='143d32b2'/>
+      <function-decl name='usb_role_switch_register' mangled-name='usb_role_switch_register' filepath='drivers/usb/roles/class.c' line='306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_register'>
+        <parameter type-id='fa0b179b' name='parent' filepath='drivers/usb/roles/class.c' line='306' column='1'/>
+        <parameter type-id='143d32b2' name='desc' filepath='drivers/usb/roles/class.c' line='307' column='1'/>
         <return type-id='3e3cd44f'/>
       </function-decl>
-      <function-decl name='usb_role_switch_set_role' mangled-name='usb_role_switch_set_role' filepath='include/linux/usb/role.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_set_role'>
-        <parameter type-id='3e3cd44f'/>
-        <parameter type-id='c675b073'/>
+      <function-decl name='usb_role_switch_set_role' mangled-name='usb_role_switch_set_role' filepath='drivers/usb/roles/class.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_set_role'>
+        <parameter type-id='3e3cd44f' name='sw' filepath='drivers/usb/roles/class.c' line='42' column='1'/>
+        <parameter type-id='c675b073' name='role' filepath='drivers/usb/roles/class.c' line='42' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_role_switch_unregister' mangled-name='usb_role_switch_unregister' filepath='include/linux/usb/role.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_unregister'>
-        <parameter type-id='3e3cd44f'/>
+      <function-decl name='usb_role_switch_unregister' mangled-name='usb_role_switch_unregister' filepath='drivers/usb/roles/class.c' line='354' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_role_switch_unregister'>
+        <parameter type-id='3e3cd44f' name='sw' filepath='drivers/usb/roles/class.c' line='354' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usb_root_hub_lost_power' mangled-name='usb_root_hub_lost_power' filepath='drivers/usb/core/hub.c' line='3848' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_root_hub_lost_power'>
         <parameter type-id='25e60cb2' name='rhdev' filepath='drivers/usb/core/hub.c' line='3848' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_scuttle_anchored_urbs' mangled-name='usb_scuttle_anchored_urbs' filepath='include/linux/usb.h' line='1772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_scuttle_anchored_urbs'>
-        <parameter type-id='bd300bf3'/>
+      <function-decl name='usb_scuttle_anchored_urbs' mangled-name='usb_scuttle_anchored_urbs' filepath='drivers/usb/core/urb.c' line='1009' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_scuttle_anchored_urbs'>
+        <parameter type-id='bd300bf3' name='anchor' filepath='drivers/usb/core/urb.c' line='1009' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usb_set_interface' mangled-name='usb_set_interface' filepath='include/linux/usb.h' line='1871' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_set_interface'>
-        <parameter type-id='25e60cb2'/>
-        <parameter type-id='95e97e5e'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='usb_set_interface' mangled-name='usb_set_interface' filepath='drivers/usb/core/message.c' line='1523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_set_interface'>
+        <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/message.c' line='1523' column='1'/>
+        <parameter type-id='95e97e5e' name='interface' filepath='drivers/usb/core/message.c' line='1523' column='1'/>
+        <parameter type-id='95e97e5e' name='alternate' filepath='drivers/usb/core/message.c' line='1523' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usb_speed_string' mangled-name='usb_speed_string' filepath='drivers/usb/common/common.c' line='91' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_speed_string'>
@@ -127796,13 +123178,13 @@
         <parameter type-id='2a895c01' name='cdev' filepath='drivers/usb/gadget/composite.c' line='1275' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_submit_urb' mangled-name='usb_submit_urb' filepath='include/linux/usb.h' line='1755' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_submit_urb'>
-        <parameter type-id='ab85b8f2'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='usb_submit_urb' mangled-name='usb_submit_urb' filepath='drivers/usb/core/urb.c' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_submit_urb'>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/urb.c' line='367' column='1'/>
+        <parameter type-id='3eb7c31c' name='mem_flags' filepath='drivers/usb/core/urb.c' line='367' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usb_unanchor_urb' mangled-name='usb_unanchor_urb' filepath='include/linux/usb.h' line='1768' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unanchor_urb'>
-        <parameter type-id='ab85b8f2'/>
+      <function-decl name='usb_unanchor_urb' mangled-name='usb_unanchor_urb' filepath='drivers/usb/core/urb.c' line='164' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unanchor_urb'>
+        <parameter type-id='ab85b8f2' name='urb' filepath='drivers/usb/core/urb.c' line='164' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usb_unregister_notify' mangled-name='usb_unregister_notify' filepath='drivers/usb/core/notify.c' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_unregister_notify'>
@@ -127813,9 +123195,9 @@
         <parameter type-id='8bf48c31' name='intf' filepath='drivers/net/usb/usbnet.c' line='1567' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usbnet_get_endpoints' mangled-name='usbnet_get_endpoints' filepath='include/linux/usb/usbnet.h' line='270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_get_endpoints'>
-        <parameter type-id='12884b9a'/>
-        <parameter type-id='8bf48c31'/>
+      <function-decl name='usbnet_get_endpoints' mangled-name='usbnet_get_endpoints' filepath='drivers/net/usb/usbnet.c' line='78' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_get_endpoints'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='78' column='1'/>
+        <parameter type-id='8bf48c31' name='intf' filepath='drivers/net/usb/usbnet.c' line='78' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usbnet_get_msglevel' mangled-name='usbnet_get_msglevel' filepath='drivers/net/usb/usbnet.c' line='1031' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_get_msglevel'>
@@ -127827,10 +123209,10 @@
         <parameter type-id='bd3860fe' name='stats' filepath='drivers/net/usb/usbnet.c' line='983' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usbnet_link_change' mangled-name='usbnet_link_change' filepath='include/linux/usb/usbnet.h' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_link_change'>
-        <parameter type-id='12884b9a'/>
-        <parameter type-id='b50a4934'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='usbnet_link_change' mangled-name='usbnet_link_change' filepath='drivers/net/usb/usbnet.c' line='1945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_link_change'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='1945' column='1'/>
+        <parameter type-id='b50a4934' name='link' filepath='drivers/net/usb/usbnet.c' line='1945' column='1'/>
+        <parameter type-id='b50a4934' name='need_reset' filepath='drivers/net/usb/usbnet.c' line='1945' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usbnet_nway_reset' mangled-name='usbnet_nway_reset' filepath='drivers/net/usb/usbnet.c' line='1009' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_nway_reset'>
@@ -127866,8 +123248,8 @@
         <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2065' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usbnet_resume' mangled-name='usbnet_resume' filepath='include/linux/usb/usbnet.h' line='193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_resume'>
-        <parameter type-id='8bf48c31'/>
+      <function-decl name='usbnet_resume' mangled-name='usbnet_resume' filepath='drivers/net/usb/usbnet.c' line='1868' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_resume'>
+        <parameter type-id='8bf48c31' name='intf' filepath='drivers/net/usb/usbnet.c' line='1868' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usbnet_set_msglevel' mangled-name='usbnet_set_msglevel' filepath='drivers/net/usb/usbnet.c' line='1039' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_set_msglevel'>
@@ -127875,9 +123257,9 @@
         <parameter type-id='19c2251e' name='level' filepath='drivers/net/usb/usbnet.c' line='1039' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usbnet_skb_return' mangled-name='usbnet_skb_return' filepath='include/linux/usb/usbnet.h' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_skb_return'>
-        <parameter type-id='12884b9a'/>
-        <parameter type-id='0fbf3cfd'/>
+      <function-decl name='usbnet_skb_return' mangled-name='usbnet_skb_return' filepath='drivers/net/usb/usbnet.c' line='305' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_skb_return'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='305' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='drivers/net/usb/usbnet.c' line='305' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usbnet_start_xmit' mangled-name='usbnet_start_xmit' filepath='drivers/net/usb/usbnet.c' line='1321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_start_xmit'>
@@ -127889,9 +123271,9 @@
         <parameter type-id='68a2d05b' name='net' filepath='drivers/net/usb/usbnet.c' line='796' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usbnet_suspend' mangled-name='usbnet_suspend' filepath='include/linux/usb/usbnet.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_suspend'>
-        <parameter type-id='8bf48c31'/>
-        <parameter type-id='08496218'/>
+      <function-decl name='usbnet_suspend' mangled-name='usbnet_suspend' filepath='drivers/net/usb/usbnet.c' line='1835' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_suspend'>
+        <parameter type-id='8bf48c31' name='intf' filepath='drivers/net/usb/usbnet.c' line='1835' column='1'/>
+        <parameter type-id='08496218' name='message' filepath='drivers/net/usb/usbnet.c' line='1835' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usbnet_tx_timeout' mangled-name='usbnet_tx_timeout' filepath='drivers/net/usb/usbnet.c' line='1271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_tx_timeout'>
@@ -127899,8 +123281,8 @@
         <parameter type-id='f0981eeb' name='txqueue' filepath='drivers/net/usb/usbnet.c' line='1271' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='usbnet_update_max_qlen' mangled-name='usbnet_update_max_qlen' filepath='include/linux/usb/usbnet.h' line='297' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_update_max_qlen'>
-        <parameter type-id='12884b9a'/>
+      <function-decl name='usbnet_update_max_qlen' mangled-name='usbnet_update_max_qlen' filepath='drivers/net/usb/usbnet.c' line='340' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_update_max_qlen'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='340' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='usbnet_write_cmd' mangled-name='usbnet_write_cmd' filepath='drivers/net/usb/usbnet.c' line='2046' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd'>
@@ -127913,14 +123295,14 @@
         <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2047' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usbnet_write_cmd_async' mangled-name='usbnet_write_cmd_async' filepath='include/linux/usb/usbnet.h' line='205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd_async'>
-        <parameter type-id='12884b9a'/>
-        <parameter type-id='f9b06939'/>
-        <parameter type-id='f9b06939'/>
-        <parameter type-id='1dc6a898'/>
-        <parameter type-id='1dc6a898'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='1dc6a898'/>
+      <function-decl name='usbnet_write_cmd_async' mangled-name='usbnet_write_cmd_async' filepath='drivers/net/usb/usbnet.c' line='2102' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd_async'>
+        <parameter type-id='12884b9a' name='dev' filepath='drivers/net/usb/usbnet.c' line='2102' column='1'/>
+        <parameter type-id='f9b06939' name='cmd' filepath='drivers/net/usb/usbnet.c' line='2102' column='1'/>
+        <parameter type-id='f9b06939' name='reqtype' filepath='drivers/net/usb/usbnet.c' line='2102' column='1'/>
+        <parameter type-id='1dc6a898' name='value' filepath='drivers/net/usb/usbnet.c' line='2103' column='1'/>
+        <parameter type-id='1dc6a898' name='index' filepath='drivers/net/usb/usbnet.c' line='2103' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/net/usb/usbnet.c' line='2103' column='1'/>
+        <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2103' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='usbnet_write_cmd_nopm' mangled-name='usbnet_write_cmd_nopm' filepath='drivers/net/usb/usbnet.c' line='2076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usbnet_write_cmd_nopm'>
@@ -127933,13 +123315,13 @@
         <parameter type-id='1dc6a898' name='size' filepath='drivers/net/usb/usbnet.c' line='2078' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='usleep_range' mangled-name='usleep_range' filepath='include/linux/delay.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usleep_range'>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='usleep_range' mangled-name='usleep_range' filepath='kernel/time/timer.c' line='2066' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usleep_range'>
+        <parameter type-id='7359adad' name='min' filepath='kernel/time/timer.c' line='2066' column='1'/>
+        <parameter type-id='7359adad' name='max' filepath='kernel/time/timer.c' line='2066' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='uuid_gen' mangled-name='uuid_gen' filepath='include/linux/uuid.h' line='90' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uuid_gen'>
-        <parameter type-id='f1397309'/>
+      <function-decl name='uuid_gen' mangled-name='uuid_gen' filepath='lib/uuid.c' line='68' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uuid_gen'>
+        <parameter type-id='f1397309' name='bu' filepath='lib/uuid.c' line='68' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='uuid_null' type-id='21109a44' mangled-name='uuid_null' visibility='default' filepath='lib/uuid.c' line='18' column='1' elf-symbol-id='uuid_null'/>
@@ -128106,9 +123488,9 @@
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='vabits_actual' type-id='91ce1af9' mangled-name='vabits_actual' visibility='default' filepath='arch/arm64/mm/mmu.c' line='46' column='1' elf-symbol-id='vabits_actual'/>
-      <function-decl name='vb2_buffer_done' mangled-name='vb2_buffer_done' filepath='include/media/videobuf2-core.h' line='698' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_buffer_done'>
-        <parameter type-id='85535682'/>
-        <parameter type-id='550876cf'/>
+      <function-decl name='vb2_buffer_done' mangled-name='vb2_buffer_done' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='992' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_buffer_done'>
+        <parameter type-id='85535682' name='vb' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='992' column='1'/>
+        <parameter type-id='550876cf' name='state' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='992' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='vb2_common_vm_ops' type-id='92e9b57c' mangled-name='vb2_common_vm_ops' visibility='default' filepath='drivers/media/common/videobuf2/videobuf2-memops.c' line='122' column='1' elf-symbol-id='vb2_common_vm_ops'/>
@@ -128122,10 +123504,10 @@
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='vb2_dma_sg_memops' type-id='23cb2797' mangled-name='vb2_dma_sg_memops' visibility='default' filepath='drivers/media/common/videobuf2/videobuf2-dma-sg.c' line='640' column='1' elf-symbol-id='vb2_dma_sg_memops'/>
-      <function-decl name='vb2_dqbuf' mangled-name='vb2_dqbuf' filepath='include/media/videobuf2-v4l2.h' line='192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_dqbuf'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='a90d9002'/>
-        <parameter type-id='b50a4934'/>
+      <function-decl name='vb2_dqbuf' mangled-name='vb2_dqbuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='832' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_dqbuf'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='832' column='1'/>
+        <parameter type-id='a90d9002' name='b' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='832' column='1'/>
+        <parameter type-id='b50a4934' name='nonblocking' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='832' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='vb2_fop_mmap' mangled-name='vb2_fop_mmap' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_fop_mmap'>
@@ -128197,9 +123579,9 @@
         <parameter type-id='1abf108f' name='i' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1069' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vb2_mmap' mangled-name='vb2_mmap' filepath='include/media/videobuf2-core.h' line='989' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_mmap'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='2ae08426'/>
+      <function-decl name='vb2_mmap' mangled-name='vb2_mmap' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='2214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_mmap'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='2214' column='1'/>
+        <parameter type-id='2ae08426' name='vma' filepath='drivers/media/common/videobuf2/videobuf2-core.c' line='2214' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='vb2_ops_wait_finish' mangled-name='vb2_ops_wait_finish' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='1269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_ops_wait_finish'>
@@ -128226,15 +123608,15 @@
         <parameter type-id='a54c778f' name='wait' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='947' column='1'/>
         <return type-id='8f254b08'/>
       </function-decl>
-      <function-decl name='vb2_qbuf' mangled-name='vb2_qbuf' filepath='include/media/videobuf2-v4l2.h' line='154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_qbuf'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='e2929c1c'/>
-        <parameter type-id='a90d9002'/>
+      <function-decl name='vb2_qbuf' mangled-name='vb2_qbuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_qbuf'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='811' column='1'/>
+        <parameter type-id='e2929c1c' name='mdev' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='811' column='1'/>
+        <parameter type-id='a90d9002' name='b' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='812' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vb2_querybuf' mangled-name='vb2_querybuf' filepath='include/media/videobuf2-v4l2.h' line='84' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_querybuf'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='a90d9002'/>
+      <function-decl name='vb2_querybuf' mangled-name='vb2_querybuf' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='684' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_querybuf'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='684' column='1'/>
+        <parameter type-id='a90d9002' name='b' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='684' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='vb2_queue_init' mangled-name='vb2_queue_init' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='935' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_queue_init'>
@@ -128245,19 +123627,19 @@
         <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='941' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='vb2_reqbufs' mangled-name='vb2_reqbufs' filepath='include/media/videobuf2-v4l2.h' line='94' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_reqbufs'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='e4330308'/>
+      <function-decl name='vb2_reqbufs' mangled-name='vb2_reqbufs' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='725' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_reqbufs'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='725' column='1'/>
+        <parameter type-id='e4330308' name='req' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='725' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vb2_streamoff' mangled-name='vb2_streamoff' filepath='include/media/videobuf2-v4l2.h' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_streamoff'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='1abf108f'/>
+      <function-decl name='vb2_streamoff' mangled-name='vb2_streamoff' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='873' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_streamoff'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='873' column='1'/>
+        <parameter type-id='1abf108f' name='type' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='873' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vb2_streamon' mangled-name='vb2_streamon' filepath='include/media/videobuf2-v4l2.h' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_streamon'>
-        <parameter type-id='a05f1ecd'/>
-        <parameter type-id='1abf108f'/>
+      <function-decl name='vb2_streamon' mangled-name='vb2_streamon' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vb2_streamon'>
+        <parameter type-id='a05f1ecd' name='q' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='863' column='1'/>
+        <parameter type-id='1abf108f' name='type' filepath='drivers/media/common/videobuf2/videobuf2-v4l2.c' line='863' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='vb2_vmalloc_memops' type-id='23cb2797' mangled-name='vb2_vmalloc_memops' visibility='default' filepath='drivers/media/common/videobuf2/videobuf2-vmalloc.c' line='417' column='1' elf-symbol-id='vb2_vmalloc_memops'/>
@@ -128288,8 +123670,8 @@
         <parameter type-id='0e3f80d9' name='tx' filepath='drivers/dma/virt-dma.c' line='19' column='1'/>
         <return type-id='6478ea0a'/>
       </function-decl>
-      <function-decl name='vfree' mangled-name='vfree' filepath='include/linux/vmalloc.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vfree'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='vfree' mangled-name='vfree' filepath='mm/vmalloc.c' line='2368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vfree'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/vmalloc.c' line='2368' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='video_devdata' mangled-name='video_devdata' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='video_devdata'>
@@ -128317,8 +123699,8 @@
         <parameter type-id='798c29b7' name='vdev' filepath='drivers/media/v4l2-core/v4l2-dev.c' line='1077' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='virtio_break_device' mangled-name='virtio_break_device' filepath='drivers/virtio/virtio_ring.c' line='2289' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_break_device'>
-        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio_ring.c' line='2289' column='1'/>
+      <function-decl name='virtio_break_device' mangled-name='virtio_break_device' filepath='drivers/virtio/virtio_ring.c' line='2376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_break_device'>
+        <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio_ring.c' line='2376' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='virtio_check_driver_offered_feature' mangled-name='virtio_check_driver_offered_feature' filepath='drivers/virtio/virtio.c' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_check_driver_offered_feature'>
@@ -128338,16 +123720,16 @@
         <parameter type-id='5dbfcbb1' name='dev' filepath='drivers/virtio/virtio.c' line='418' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtio_max_dma_size' mangled-name='virtio_max_dma_size' filepath='drivers/virtio/virtio_ring.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_max_dma_size'>
-        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='261' column='1'/>
+      <function-decl name='virtio_max_dma_size' mangled-name='virtio_max_dma_size' filepath='drivers/virtio/virtio_ring.c' line='262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_max_dma_size'>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='262' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
       <function-decl name='virtio_transport_connect' mangled-name='virtio_transport_connect' filepath='net/vmw_vsock/virtio_transport_common.c' line='627' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_connect'>
         <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='627' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtio_transport_deliver_tap_pkt' mangled-name='virtio_transport_deliver_tap_pkt' filepath='include/linux/virtio_vsock.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_deliver_tap_pkt'>
-        <parameter type-id='ac22ee2f'/>
+      <function-decl name='virtio_transport_deliver_tap_pkt' mangled-name='virtio_transport_deliver_tap_pkt' filepath='net/vmw_vsock/virtio_transport_common.c' line='162' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_deliver_tap_pkt'>
+        <parameter type-id='ac22ee2f' name='pkt' filepath='net/vmw_vsock/virtio_transport_common.c' line='162' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='virtio_transport_destruct' mangled-name='virtio_transport_destruct' filepath='net/vmw_vsock/virtio_transport_common.c' line='682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_destruct'>
@@ -128383,8 +123765,8 @@
         <parameter type-id='ecb0ce18' name='psk' filepath='net/vmw_vsock/virtio_transport_common.c' line='464' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtio_transport_free_pkt' mangled-name='virtio_transport_free_pkt' filepath='include/linux/virtio_vsock.h' line='144' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_free_pkt'>
-        <parameter type-id='ac22ee2f'/>
+      <function-decl name='virtio_transport_free_pkt' mangled-name='virtio_transport_free_pkt' filepath='net/vmw_vsock/virtio_transport_common.c' line='1201' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_free_pkt'>
+        <parameter type-id='ac22ee2f' name='pkt' filepath='net/vmw_vsock/virtio_transport_common.c' line='1201' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='virtio_transport_notify_buffer_size' mangled-name='virtio_transport_notify_buffer_size' filepath='net/vmw_vsock/virtio_transport_common.c' line='494' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_notify_buffer_size'>
@@ -128451,9 +123833,9 @@
         <parameter type-id='6f074813' name='data' filepath='net/vmw_vsock/virtio_transport_common.c' line='583' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtio_transport_recv_pkt' mangled-name='virtio_transport_recv_pkt' filepath='include/linux/virtio_vsock.h' line='142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_recv_pkt'>
-        <parameter type-id='2bfa174e'/>
-        <parameter type-id='ac22ee2f'/>
+      <function-decl name='virtio_transport_recv_pkt' mangled-name='virtio_transport_recv_pkt' filepath='net/vmw_vsock/virtio_transport_common.c' line='1106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_recv_pkt'>
+        <parameter type-id='2bfa174e' name='t' filepath='net/vmw_vsock/virtio_transport_common.c' line='1106' column='1'/>
+        <parameter type-id='ac22ee2f' name='pkt' filepath='net/vmw_vsock/virtio_transport_common.c' line='1107' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='virtio_transport_release' mangled-name='virtio_transport_release' filepath='net/vmw_vsock/virtio_transport_common.c' line='850' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtio_transport_release'>
@@ -128499,106 +123881,106 @@
         <parameter type-id='ecb0ce18' name='vsk' filepath='net/vmw_vsock/virtio_transport_common.c' line='596' column='1'/>
         <return type-id='91ce1af9'/>
       </function-decl>
-      <function-decl name='virtqueue_add_inbuf' mangled-name='virtqueue_add_inbuf' filepath='drivers/virtio/virtio_ring.c' line='1792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_inbuf'>
-        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1792' column='1'/>
-        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1793' column='1'/>
-        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1793' column='1'/>
-        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1794' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1795' column='1'/>
+      <function-decl name='virtqueue_add_inbuf' mangled-name='virtqueue_add_inbuf' filepath='drivers/virtio/virtio_ring.c' line='1872' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_inbuf'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1872' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1873' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1873' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1874' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1875' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtqueue_add_inbuf_ctx' mangled-name='virtqueue_add_inbuf_ctx' filepath='drivers/virtio/virtio_ring.c' line='1815' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_inbuf_ctx'>
-        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1815' column='1'/>
-        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1816' column='1'/>
-        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1816' column='1'/>
-        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1817' column='1'/>
-        <parameter type-id='eaa32e2f' name='ctx' filepath='drivers/virtio/virtio_ring.c' line='1818' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1819' column='1'/>
+      <function-decl name='virtqueue_add_inbuf_ctx' mangled-name='virtqueue_add_inbuf_ctx' filepath='drivers/virtio/virtio_ring.c' line='1895' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_inbuf_ctx'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1895' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1896' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1896' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1897' column='1'/>
+        <parameter type-id='eaa32e2f' name='ctx' filepath='drivers/virtio/virtio_ring.c' line='1898' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1899' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtqueue_add_outbuf' mangled-name='virtqueue_add_outbuf' filepath='drivers/virtio/virtio_ring.c' line='1770' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_outbuf'>
-        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1770' column='1'/>
-        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1771' column='1'/>
-        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1771' column='1'/>
-        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1772' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1773' column='1'/>
+      <function-decl name='virtqueue_add_outbuf' mangled-name='virtqueue_add_outbuf' filepath='drivers/virtio/virtio_ring.c' line='1850' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_outbuf'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1850' column='1'/>
+        <parameter type-id='bf3ef905' name='sg' filepath='drivers/virtio/virtio_ring.c' line='1851' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='1851' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1852' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1853' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtqueue_add_sgs' mangled-name='virtqueue_add_sgs' filepath='include/linux/virtio.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_sgs'>
-        <parameter type-id='91d0de51'/>
-        <parameter type-id='3f2244fd'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='3eb7c31c'/>
+      <function-decl name='virtqueue_add_sgs' mangled-name='virtqueue_add_sgs' filepath='drivers/virtio/virtio_ring.c' line='1816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_add_sgs'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1816' column='1'/>
+        <parameter type-id='3f2244fd' name='sgs' filepath='drivers/virtio/virtio_ring.c' line='1817' column='1'/>
+        <parameter type-id='f0981eeb' name='out_sgs' filepath='drivers/virtio/virtio_ring.c' line='1818' column='1'/>
+        <parameter type-id='f0981eeb' name='in_sgs' filepath='drivers/virtio/virtio_ring.c' line='1819' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='drivers/virtio/virtio_ring.c' line='1820' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='drivers/virtio/virtio_ring.c' line='1821' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='virtqueue_detach_unused_buf' mangled-name='virtqueue_detach_unused_buf' filepath='drivers/virtio/virtio_ring.c' line='2033' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_detach_unused_buf'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2033' column='1'/>
+      <function-decl name='virtqueue_detach_unused_buf' mangled-name='virtqueue_detach_unused_buf' filepath='drivers/virtio/virtio_ring.c' line='2113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_detach_unused_buf'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2113' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='virtqueue_disable_cb' mangled-name='virtqueue_disable_cb' filepath='include/linux/virtio.h' line='71' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_disable_cb'>
-        <parameter type-id='91d0de51'/>
+      <function-decl name='virtqueue_disable_cb' mangled-name='virtqueue_disable_cb' filepath='drivers/virtio/virtio_ring.c' line='2010' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_disable_cb'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2010' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='virtqueue_enable_cb' mangled-name='virtqueue_enable_cb' filepath='include/linux/virtio.h' line='73' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb'>
-        <parameter type-id='91d0de51'/>
+      <function-decl name='virtqueue_enable_cb' mangled-name='virtqueue_enable_cb' filepath='drivers/virtio/virtio_ring.c' line='2075' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2075' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='virtqueue_enable_cb_delayed' mangled-name='virtqueue_enable_cb_delayed' filepath='drivers/virtio/virtio_ring.c' line='2016' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb_delayed'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2016' column='1'/>
+      <function-decl name='virtqueue_enable_cb_delayed' mangled-name='virtqueue_enable_cb_delayed' filepath='drivers/virtio/virtio_ring.c' line='2096' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb_delayed'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2096' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='virtqueue_enable_cb_prepare' mangled-name='virtqueue_enable_cb_prepare' filepath='drivers/virtio/virtio_ring.c' line='1953' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb_prepare'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1953' column='1'/>
+      <function-decl name='virtqueue_enable_cb_prepare' mangled-name='virtqueue_enable_cb_prepare' filepath='drivers/virtio/virtio_ring.c' line='2033' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_enable_cb_prepare'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2033' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='virtqueue_get_avail_addr' mangled-name='virtqueue_get_avail_addr' filepath='drivers/virtio/virtio_ring.c' line='2317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_avail_addr'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2317' column='1'/>
+      <function-decl name='virtqueue_get_avail_addr' mangled-name='virtqueue_get_avail_addr' filepath='drivers/virtio/virtio_ring.c' line='2404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_avail_addr'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2404' column='1'/>
         <return type-id='cf29c9b3'/>
       </function-decl>
-      <function-decl name='virtqueue_get_buf' mangled-name='virtqueue_get_buf' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_buf'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1'/>
-        <parameter type-id='807869d3' name='len' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1'/>
+      <function-decl name='virtqueue_get_buf' mangled-name='virtqueue_get_buf' filepath='drivers/virtio/virtio_ring.c' line='1996' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_buf'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1996' column='1'/>
+        <parameter type-id='807869d3' name='len' filepath='drivers/virtio/virtio_ring.c' line='1996' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='virtqueue_get_buf_ctx' mangled-name='virtqueue_get_buf_ctx' filepath='drivers/virtio/virtio_ring.c' line='1906' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_buf_ctx'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1906' column='1'/>
-        <parameter type-id='807869d3' name='len' filepath='drivers/virtio/virtio_ring.c' line='1906' column='1'/>
-        <parameter type-id='63e171df' name='ctx' filepath='drivers/virtio/virtio_ring.c' line='1907' column='1'/>
+      <function-decl name='virtqueue_get_buf_ctx' mangled-name='virtqueue_get_buf_ctx' filepath='drivers/virtio/virtio_ring.c' line='1986' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_buf_ctx'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1986' column='1'/>
+        <parameter type-id='807869d3' name='len' filepath='drivers/virtio/virtio_ring.c' line='1986' column='1'/>
+        <parameter type-id='63e171df' name='ctx' filepath='drivers/virtio/virtio_ring.c' line='1987' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='virtqueue_get_desc_addr' mangled-name='virtqueue_get_desc_addr' filepath='drivers/virtio/virtio_ring.c' line='2304' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_desc_addr'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2304' column='1'/>
+      <function-decl name='virtqueue_get_desc_addr' mangled-name='virtqueue_get_desc_addr' filepath='drivers/virtio/virtio_ring.c' line='2391' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_desc_addr'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2391' column='1'/>
         <return type-id='cf29c9b3'/>
       </function-decl>
-      <function-decl name='virtqueue_get_used_addr' mangled-name='virtqueue_get_used_addr' filepath='drivers/virtio/virtio_ring.c' line='2331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_used_addr'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2331' column='1'/>
+      <function-decl name='virtqueue_get_used_addr' mangled-name='virtqueue_get_used_addr' filepath='drivers/virtio/virtio_ring.c' line='2418' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_used_addr'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2418' column='1'/>
         <return type-id='cf29c9b3'/>
       </function-decl>
-      <function-decl name='virtqueue_get_vring_size' mangled-name='virtqueue_get_vring_size' filepath='drivers/virtio/virtio_ring.c' line='2268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_vring_size'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2268' column='1'/>
+      <function-decl name='virtqueue_get_vring_size' mangled-name='virtqueue_get_vring_size' filepath='drivers/virtio/virtio_ring.c' line='2355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_get_vring_size'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2355' column='1'/>
         <return type-id='f0981eeb'/>
       </function-decl>
-      <function-decl name='virtqueue_is_broken' mangled-name='virtqueue_is_broken' filepath='include/linux/virtio.h' line='85' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_is_broken'>
-        <parameter type-id='91d0de51'/>
+      <function-decl name='virtqueue_is_broken' mangled-name='virtqueue_is_broken' filepath='drivers/virtio/virtio_ring.c' line='2364' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_is_broken'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2364' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='virtqueue_kick' mangled-name='virtqueue_kick' filepath='drivers/virtio/virtio_ring.c' line='1881' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_kick'>
-        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1881' column='1'/>
+      <function-decl name='virtqueue_kick' mangled-name='virtqueue_kick' filepath='drivers/virtio/virtio_ring.c' line='1961' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_kick'>
+        <parameter type-id='91d0de51' name='vq' filepath='drivers/virtio/virtio_ring.c' line='1961' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='virtqueue_kick_prepare' mangled-name='virtqueue_kick_prepare' filepath='include/linux/virtio.h' line='62' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_kick_prepare'>
-        <parameter type-id='91d0de51'/>
+      <function-decl name='virtqueue_kick_prepare' mangled-name='virtqueue_kick_prepare' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_kick_prepare'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1916' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='virtqueue_notify' mangled-name='virtqueue_notify' filepath='include/linux/virtio.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_notify'>
-        <parameter type-id='91d0de51'/>
+      <function-decl name='virtqueue_notify' mangled-name='virtqueue_notify' filepath='drivers/virtio/virtio_ring.c' line='1933' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_notify'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1933' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='virtqueue_poll' mangled-name='virtqueue_poll' filepath='drivers/virtio/virtio_ring.c' line='1971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_poll'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='1971' column='1'/>
-        <parameter type-id='f0981eeb' name='last_used_idx' filepath='drivers/virtio/virtio_ring.c' line='1971' column='1'/>
+      <function-decl name='virtqueue_poll' mangled-name='virtqueue_poll' filepath='drivers/virtio/virtio_ring.c' line='2051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='virtqueue_poll'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2051' column='1'/>
+        <parameter type-id='f0981eeb' name='last_used_idx' filepath='drivers/virtio/virtio_ring.c' line='2051' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
       <function-decl name='vlan_uses_dev' mangled-name='vlan_uses_dev' filepath='net/8021q/vlan_core.c' line='443' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vlan_uses_dev'>
@@ -128663,28 +124045,28 @@
         <parameter type-id='f0981eeb' name='count' filepath='mm/vmalloc.c' line='1805' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='vmalloc' mangled-name='vmalloc' filepath='include/linux/vmalloc.h' line='105' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc'>
-        <parameter type-id='7359adad'/>
+      <function-decl name='vmalloc' mangled-name='vmalloc' filepath='mm/vmalloc.c' line='2708' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc'>
+        <parameter type-id='7359adad' name='size' filepath='mm/vmalloc.c' line='2708' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='vmalloc_to_page' mangled-name='vmalloc_to_page' filepath='include/linux/mm.h' line='791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc_to_page'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='vmalloc_to_page' mangled-name='vmalloc_to_page' filepath='mm/vmalloc.c' line='350' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc_to_page'>
+        <parameter type-id='eaa32e2f' name='vmalloc_addr' filepath='mm/vmalloc.c' line='350' column='1'/>
         <return type-id='02f11ed4'/>
       </function-decl>
       <function-decl name='vmalloc_user' mangled-name='vmalloc_user' filepath='mm/vmalloc.c' line='2744' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmalloc_user'>
         <parameter type-id='7359adad' name='size' filepath='mm/vmalloc.c' line='2744' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='vmap' mangled-name='vmap' filepath='include/linux/vmalloc.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmap'>
-        <parameter type-id='9f93c9da'/>
-        <parameter type-id='f0981eeb'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='2e2dcbd3'/>
+      <function-decl name='vmap' mangled-name='vmap' filepath='mm/vmalloc.c' line='2416' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmap'>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/vmalloc.c' line='2416' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/vmalloc.c' line='2416' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='mm/vmalloc.c' line='2417' column='1'/>
+        <parameter type-id='2e2dcbd3' name='prot' filepath='mm/vmalloc.c' line='2417' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='vmemdup_user' mangled-name='vmemdup_user' filepath='include/linux/string.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmemdup_user'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='b59d7dce'/>
+      <function-decl name='vmemdup_user' mangled-name='vmemdup_user' filepath='mm/util.c' line='198' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmemdup_user'>
+        <parameter type-id='eaa32e2f' name='src' filepath='mm/util.c' line='198' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='198' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='vmf_insert_mixed' mangled-name='vmf_insert_mixed' filepath='mm/memory.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_mixed'>
@@ -128706,55 +124088,55 @@
         <parameter type-id='2e2dcbd3' name='pgprot' filepath='mm/memory.c' line='2035' column='1'/>
         <return type-id='e9265215'/>
       </function-decl>
-      <function-decl name='vprintk' mangled-name='vprintk' filepath='include/linux/printk.h' line='173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vprintk'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2aee9912'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='vring_create_virtqueue' mangled-name='vring_create_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_create_virtqueue'>
-        <parameter type-id='f0981eeb' name='index' filepath='drivers/virtio/virtio_ring.c' line='2149' column='1'/>
-        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='2150' column='1'/>
-        <parameter type-id='f0981eeb' name='vring_align' filepath='drivers/virtio/virtio_ring.c' line='2151' column='1'/>
-        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2152' column='1'/>
-        <parameter type-id='b50a4934' name='weak_barriers' filepath='drivers/virtio/virtio_ring.c' line='2153' column='1'/>
-        <parameter type-id='b50a4934' name='may_reduce_num' filepath='drivers/virtio/virtio_ring.c' line='2154' column='1'/>
-        <parameter type-id='b50a4934' name='context' filepath='drivers/virtio/virtio_ring.c' line='2155' column='1'/>
-        <parameter type-id='3098d84b' name='notify' filepath='drivers/virtio/virtio_ring.c' line='2156' column='1'/>
-        <parameter type-id='c881e0a0' name='callback' filepath='drivers/virtio/virtio_ring.c' line='2157' column='1'/>
-        <parameter type-id='80f4b756' name='name' filepath='drivers/virtio/virtio_ring.c' line='2158' column='1'/>
+      <function-decl name='vprintk' mangled-name='vprintk' filepath='kernel/printk/printk.c' line='2070' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vprintk'>
+        <parameter type-id='80f4b756' name='fmt' filepath='kernel/printk/printk.c' line='2070' column='1'/>
+        <parameter type-id='2aee9912' name='args' filepath='kernel/printk/printk.c' line='2070' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='vring_create_virtqueue' mangled-name='vring_create_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2233' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_create_virtqueue'>
+        <parameter type-id='f0981eeb' name='index' filepath='drivers/virtio/virtio_ring.c' line='2234' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='2235' column='1'/>
+        <parameter type-id='f0981eeb' name='vring_align' filepath='drivers/virtio/virtio_ring.c' line='2236' column='1'/>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2237' column='1'/>
+        <parameter type-id='b50a4934' name='weak_barriers' filepath='drivers/virtio/virtio_ring.c' line='2238' column='1'/>
+        <parameter type-id='b50a4934' name='may_reduce_num' filepath='drivers/virtio/virtio_ring.c' line='2239' column='1'/>
+        <parameter type-id='b50a4934' name='context' filepath='drivers/virtio/virtio_ring.c' line='2240' column='1'/>
+        <parameter type-id='3098d84b' name='notify' filepath='drivers/virtio/virtio_ring.c' line='2241' column='1'/>
+        <parameter type-id='c881e0a0' name='callback' filepath='drivers/virtio/virtio_ring.c' line='2242' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/virtio/virtio_ring.c' line='2243' column='1'/>
         <return type-id='91d0de51'/>
       </function-decl>
-      <function-decl name='vring_del_virtqueue' mangled-name='vring_del_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_del_virtqueue'>
-        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2195' column='1'/>
+      <function-decl name='vring_del_virtqueue' mangled-name='vring_del_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_del_virtqueue'>
+        <parameter type-id='91d0de51' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2280' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='vring_interrupt' mangled-name='vring_interrupt' filepath='drivers/virtio/virtio_ring.c' line='2047' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_interrupt'>
-        <parameter type-id='95e97e5e' name='irq' filepath='drivers/virtio/virtio_ring.c' line='2047' column='1'/>
-        <parameter type-id='eaa32e2f' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2047' column='1'/>
+      <function-decl name='vring_interrupt' mangled-name='vring_interrupt' filepath='drivers/virtio/virtio_ring.c' line='2127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_interrupt'>
+        <parameter type-id='95e97e5e' name='irq' filepath='drivers/virtio/virtio_ring.c' line='2127' column='1'/>
+        <parameter type-id='eaa32e2f' name='_vq' filepath='drivers/virtio/virtio_ring.c' line='2127' column='1'/>
         <return type-id='4bdecfd7'/>
       </function-decl>
-      <function-decl name='vring_new_virtqueue' mangled-name='vring_new_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_new_virtqueue'>
-        <parameter type-id='f0981eeb' name='index' filepath='drivers/virtio/virtio_ring.c' line='2173' column='1'/>
-        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='2174' column='1'/>
-        <parameter type-id='f0981eeb' name='vring_align' filepath='drivers/virtio/virtio_ring.c' line='2175' column='1'/>
-        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2176' column='1'/>
-        <parameter type-id='b50a4934' name='weak_barriers' filepath='drivers/virtio/virtio_ring.c' line='2177' column='1'/>
-        <parameter type-id='b50a4934' name='context' filepath='drivers/virtio/virtio_ring.c' line='2178' column='1'/>
-        <parameter type-id='eaa32e2f' name='pages' filepath='drivers/virtio/virtio_ring.c' line='2179' column='1'/>
-        <parameter type-id='3098d84b' name='notify' filepath='drivers/virtio/virtio_ring.c' line='2180' column='1'/>
-        <parameter type-id='c881e0a0' name='callback' filepath='drivers/virtio/virtio_ring.c' line='2181' column='1'/>
-        <parameter type-id='80f4b756' name='name' filepath='drivers/virtio/virtio_ring.c' line='2182' column='1'/>
+      <function-decl name='vring_new_virtqueue' mangled-name='vring_new_virtqueue' filepath='drivers/virtio/virtio_ring.c' line='2258' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_new_virtqueue'>
+        <parameter type-id='f0981eeb' name='index' filepath='drivers/virtio/virtio_ring.c' line='2258' column='1'/>
+        <parameter type-id='f0981eeb' name='num' filepath='drivers/virtio/virtio_ring.c' line='2259' column='1'/>
+        <parameter type-id='f0981eeb' name='vring_align' filepath='drivers/virtio/virtio_ring.c' line='2260' column='1'/>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2261' column='1'/>
+        <parameter type-id='b50a4934' name='weak_barriers' filepath='drivers/virtio/virtio_ring.c' line='2262' column='1'/>
+        <parameter type-id='b50a4934' name='context' filepath='drivers/virtio/virtio_ring.c' line='2263' column='1'/>
+        <parameter type-id='eaa32e2f' name='pages' filepath='drivers/virtio/virtio_ring.c' line='2264' column='1'/>
+        <parameter type-id='3098d84b' name='notify' filepath='drivers/virtio/virtio_ring.c' line='2265' column='1'/>
+        <parameter type-id='c881e0a0' name='callback' filepath='drivers/virtio/virtio_ring.c' line='2266' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/virtio/virtio_ring.c' line='2267' column='1'/>
         <return type-id='91d0de51'/>
       </function-decl>
-      <function-decl name='vring_transport_features' mangled-name='vring_transport_features' filepath='drivers/virtio/virtio_ring.c' line='2235' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_transport_features'>
-        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2235' column='1'/>
+      <function-decl name='vring_transport_features' mangled-name='vring_transport_features' filepath='drivers/virtio/virtio_ring.c' line='2322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vring_transport_features'>
+        <parameter type-id='5dbfcbb1' name='vdev' filepath='drivers/virtio/virtio_ring.c' line='2322' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='vscnprintf' mangled-name='vscnprintf' filepath='include/linux/kernel.h' line='485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vscnprintf'>
-        <parameter type-id='26a90f95'/>
-        <parameter type-id='b59d7dce'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2aee9912'/>
+      <function-decl name='vscnprintf' mangled-name='vscnprintf' filepath='lib/vsprintf.c' line='2775' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vscnprintf'>
+        <parameter type-id='26a90f95' name='buf' filepath='lib/vsprintf.c' line='2775' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='lib/vsprintf.c' line='2775' column='1'/>
+        <parameter type-id='80f4b756' name='fmt' filepath='lib/vsprintf.c' line='2775' column='1'/>
+        <parameter type-id='2aee9912' name='args' filepath='lib/vsprintf.c' line='2775' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='vsnprintf' mangled-name='vsnprintf' filepath='include/linux/kernel.h' line='481' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsnprintf'>
@@ -128764,17 +124146,17 @@
         <parameter type-id='2aee9912'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vsock_core_register' mangled-name='vsock_core_register' filepath='include/net/af_vsock.h' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_core_register'>
-        <parameter type-id='c6c5bd96'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='vsock_core_register' mangled-name='vsock_core_register' filepath='net/vmw_vsock/af_vsock.c' line='2170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_core_register'>
+        <parameter type-id='c6c5bd96' name='t' filepath='net/vmw_vsock/af_vsock.c' line='2170' column='1'/>
+        <parameter type-id='95e97e5e' name='features' filepath='net/vmw_vsock/af_vsock.c' line='2170' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vsock_core_unregister' mangled-name='vsock_core_unregister' filepath='include/net/af_vsock.h' line='170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_core_unregister'>
-        <parameter type-id='c6c5bd96'/>
+      <function-decl name='vsock_core_unregister' mangled-name='vsock_core_unregister' filepath='net/vmw_vsock/af_vsock.c' line='2226' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_core_unregister'>
+        <parameter type-id='c6c5bd96' name='t' filepath='net/vmw_vsock/af_vsock.c' line='2226' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='vsock_for_each_connected_socket' mangled-name='vsock_for_each_connected_socket' filepath='include/net/af_vsock.h' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_for_each_connected_socket'>
-        <parameter type-id='841969d0'/>
+      <function-decl name='vsock_for_each_connected_socket' mangled-name='vsock_for_each_connected_socket' filepath='net/vmw_vsock/af_vsock.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsock_for_each_connected_socket'>
+        <parameter type-id='841969d0' name='fn' filepath='net/vmw_vsock/af_vsock.c' line='336' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='vsscanf' mangled-name='vsscanf' filepath='lib/vsprintf.c' line='3288' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vsscanf'>
@@ -128783,12 +124165,12 @@
         <parameter type-id='2aee9912' name='args' filepath='lib/vsprintf.c' line='3288' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vunmap' mangled-name='vunmap' filepath='include/linux/vmalloc.h' line='126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vunmap'>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='vunmap' mangled-name='vunmap' filepath='mm/vmalloc.c' line='2392' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vunmap'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/vmalloc.c' line='2392' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='vzalloc' mangled-name='vzalloc' filepath='include/linux/vmalloc.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vzalloc'>
-        <parameter type-id='7359adad'/>
+      <function-decl name='vzalloc' mangled-name='vzalloc' filepath='mm/vmalloc.c' line='2728' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vzalloc'>
+        <parameter type-id='7359adad' name='size' filepath='mm/vmalloc.c' line='2728' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='vzalloc_node' mangled-name='vzalloc_node' filepath='mm/vmalloc.c' line='2784' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vzalloc_node'>
@@ -128796,8 +124178,8 @@
         <parameter type-id='95e97e5e' name='node' filepath='mm/vmalloc.c' line='2784' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='wait_for_completion' mangled-name='wait_for_completion' filepath='include/linux/completion.h' line='103' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion'>
-        <parameter type-id='389faaf7'/>
+      <function-decl name='wait_for_completion' mangled-name='wait_for_completion' filepath='kernel/sched/completion.c' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='136' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='wait_for_completion_interruptible' mangled-name='wait_for_completion_interruptible' filepath='kernel/sched/completion.c' line='204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_interruptible'>
@@ -128814,13 +124196,13 @@
         <parameter type-id='7359adad' name='timeout' filepath='kernel/sched/completion.c' line='189' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='wait_for_completion_killable' mangled-name='wait_for_completion_killable' filepath='include/linux/completion.h' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_killable'>
-        <parameter type-id='389faaf7'/>
+      <function-decl name='wait_for_completion_killable' mangled-name='wait_for_completion_killable' filepath='kernel/sched/completion.c' line='241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_killable'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='241' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='wait_for_completion_timeout' mangled-name='wait_for_completion_timeout' filepath='include/linux/completion.h' line='107' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_timeout'>
-        <parameter type-id='389faaf7'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='wait_for_completion_timeout' mangled-name='wait_for_completion_timeout' filepath='kernel/sched/completion.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_for_completion_timeout'>
+        <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='155' column='1'/>
+        <parameter type-id='7359adad' name='timeout' filepath='kernel/sched/completion.c' line='155' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='wait_woken' mangled-name='wait_woken' filepath='kernel/sched/wait.c' line='440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wait_woken'>
@@ -128829,9 +124211,9 @@
         <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/sched/wait.c' line='440' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='wake_up_bit' mangled-name='wake_up_bit' filepath='include/linux/wait_bit.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wake_up_bit'>
-        <parameter type-id='eaa32e2f'/>
-        <parameter type-id='95e97e5e'/>
+      <function-decl name='wake_up_bit' mangled-name='wake_up_bit' filepath='kernel/sched/wait_bit.c' line='147' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wake_up_bit'>
+        <parameter type-id='eaa32e2f' name='word' filepath='kernel/sched/wait_bit.c' line='147' column='1'/>
+        <parameter type-id='95e97e5e' name='bit' filepath='kernel/sched/wait_bit.c' line='147' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='wake_up_process' mangled-name='wake_up_process' filepath='kernel/sched/core.c' line='3276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wake_up_process'>
@@ -128850,17 +124232,17 @@
         <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='160' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='wakeup_source_register' mangled-name='wakeup_source_register' filepath='include/linux/pm_wakeup.h' line='97' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_register'>
-        <parameter type-id='fa0b179b'/>
-        <parameter type-id='80f4b756'/>
+      <function-decl name='wakeup_source_register' mangled-name='wakeup_source_register' filepath='drivers/base/power/wakeup.c' line='222' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/power/wakeup.c' line='222' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/base/power/wakeup.c' line='223' column='1'/>
         <return type-id='1ea237a6'/>
       </function-decl>
       <function-decl name='wakeup_source_remove' mangled-name='wakeup_source_remove' filepath='drivers/base/power/wakeup.c' line='196' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_remove'>
         <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='196' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='wakeup_source_unregister' mangled-name='wakeup_source_unregister' filepath='include/linux/pm_wakeup.h' line='99' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_unregister'>
-        <parameter type-id='1ea237a6'/>
+      <function-decl name='wakeup_source_unregister' mangled-name='wakeup_source_unregister' filepath='drivers/base/power/wakeup.c' line='247' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='wakeup_source_unregister'>
+        <parameter type-id='1ea237a6' name='ws' filepath='drivers/base/power/wakeup.c' line='247' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='watchdog_init_timeout' mangled-name='watchdog_init_timeout' filepath='drivers/watchdog/watchdog_core.c' line='114' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='watchdog_init_timeout'>
@@ -128955,34 +124337,34 @@
         <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='2199' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='xa_erase' mangled-name='xa_erase' filepath='include/linux/xarray.h' line='349' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_erase'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='xa_erase' mangled-name='xa_erase' filepath='lib/xarray.c' line='1505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_erase'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1505' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/xarray.c' line='1505' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='xa_find' mangled-name='xa_find' filepath='include/linux/xarray.h' line='355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_find'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='1d2c2b85'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='933bf462'/>
+      <function-decl name='xa_find' mangled-name='xa_find' filepath='lib/xarray.c' line='2005' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_find'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='2005' column='1'/>
+        <parameter type-id='1d2c2b85' name='indexp' filepath='lib/xarray.c' line='2005' column='1'/>
+        <parameter type-id='7359adad' name='max' filepath='lib/xarray.c' line='2006' column='1'/>
+        <parameter type-id='933bf462' name='filter' filepath='lib/xarray.c' line='2006' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='xa_find_after' mangled-name='xa_find_after' filepath='include/linux/xarray.h' line='357' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_find_after'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='1d2c2b85'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='933bf462'/>
+      <function-decl name='xa_find_after' mangled-name='xa_find_after' filepath='lib/xarray.c' line='2055' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_find_after'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='2055' column='1'/>
+        <parameter type-id='1d2c2b85' name='indexp' filepath='lib/xarray.c' line='2055' column='1'/>
+        <parameter type-id='7359adad' name='max' filepath='lib/xarray.c' line='2056' column='1'/>
+        <parameter type-id='933bf462' name='filter' filepath='lib/xarray.c' line='2056' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='xa_get_mark' mangled-name='xa_get_mark' filepath='include/linux/xarray.h' line='352' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_get_mark'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='7359adad'/>
-        <parameter type-id='933bf462'/>
+      <function-decl name='xa_get_mark' mangled-name='xa_get_mark' filepath='lib/xarray.c' line='1932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_get_mark'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1932' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/xarray.c' line='1932' column='1'/>
+        <parameter type-id='933bf462' name='mark' filepath='lib/xarray.c' line='1932' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='xa_load' mangled-name='xa_load' filepath='include/linux/xarray.h' line='347' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_load'>
-        <parameter type-id='60075f2a'/>
-        <parameter type-id='7359adad'/>
+      <function-decl name='xa_load' mangled-name='xa_load' filepath='lib/xarray.c' line='1448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_load'>
+        <parameter type-id='60075f2a' name='xa' filepath='lib/xarray.c' line='1448' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='lib/xarray.c' line='1448' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='xa_set_mark' mangled-name='xa_set_mark' filepath='lib/xarray.c' line='1962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xa_set_mark'>
@@ -128998,17 +124380,17 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='lib/xarray.c' line='1569' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='xdp_convert_zc_to_xdp_frame' mangled-name='xdp_convert_zc_to_xdp_frame' filepath='include/net/xdp.h' line='134' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_convert_zc_to_xdp_frame'>
-        <parameter type-id='38ed603d'/>
+      <function-decl name='xdp_convert_zc_to_xdp_frame' mangled-name='xdp_convert_zc_to_xdp_frame' filepath='net/core/xdp.c' line='417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_convert_zc_to_xdp_frame'>
+        <parameter type-id='38ed603d' name='xdp' filepath='net/core/xdp.c' line='417' column='1'/>
         <return type-id='cb1c5129'/>
       </function-decl>
-      <function-decl name='xdp_do_flush' mangled-name='xdp_do_flush' filepath='net/core/filter.c' line='3918' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_flush'>
+      <function-decl name='xdp_do_flush' mangled-name='xdp_do_flush' filepath='net/core/filter.c' line='3921' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_flush'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='xdp_do_redirect' mangled-name='xdp_do_redirect' filepath='include/linux/filter.h' line='969' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_redirect'>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='38ed603d'/>
-        <parameter type-id='bdcee7ae'/>
+      <function-decl name='xdp_do_redirect' mangled-name='xdp_do_redirect' filepath='net/core/filter.c' line='3962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_do_redirect'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/filter.c' line='3962' column='1'/>
+        <parameter type-id='38ed603d' name='xdp' filepath='net/core/filter.c' line='3962' column='1'/>
+        <parameter type-id='bdcee7ae' name='xdp_prog' filepath='net/core/filter.c' line='3963' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='xdp_return_frame' mangled-name='xdp_return_frame' filepath='net/core/xdp.c' line='375' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_return_frame'>
@@ -129019,26 +124401,26 @@
         <parameter type-id='cb1c5129' name='xdpf' filepath='net/core/xdp.c' line='381' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='xdp_rxq_info_reg' mangled-name='xdp_rxq_info_reg' filepath='include/net/xdp.h' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg'>
-        <parameter type-id='8e35a44c'/>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='19c2251e'/>
+      <function-decl name='xdp_rxq_info_reg' mangled-name='xdp_rxq_info_reg' filepath='net/core/xdp.c' line='160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg'>
+        <parameter type-id='8e35a44c' name='xdp_rxq' filepath='net/core/xdp.c' line='160' column='1'/>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/core/xdp.c' line='161' column='1'/>
+        <parameter type-id='19c2251e' name='queue_index' filepath='net/core/xdp.c' line='161' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='xdp_rxq_info_reg_mem_model' mangled-name='xdp_rxq_info_reg_mem_model' filepath='include/net/xdp.h' line='218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg_mem_model'>
-        <parameter type-id='8e35a44c'/>
-        <parameter type-id='8abc4a7f'/>
-        <parameter type-id='eaa32e2f'/>
+      <function-decl name='xdp_rxq_info_reg_mem_model' mangled-name='xdp_rxq_info_reg_mem_model' filepath='net/core/xdp.c' line='262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_reg_mem_model'>
+        <parameter type-id='8e35a44c' name='xdp_rxq' filepath='net/core/xdp.c' line='262' column='1'/>
+        <parameter type-id='8abc4a7f' name='type' filepath='net/core/xdp.c' line='263' column='1'/>
+        <parameter type-id='eaa32e2f' name='allocator' filepath='net/core/xdp.c' line='263' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='xdp_rxq_info_unreg' mangled-name='xdp_rxq_info_unreg' filepath='include/net/xdp.h' line='215' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_unreg'>
-        <parameter type-id='8e35a44c'/>
+      <function-decl name='xdp_rxq_info_unreg' mangled-name='xdp_rxq_info_unreg' filepath='net/core/xdp.c' line='135' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_rxq_info_unreg'>
+        <parameter type-id='8e35a44c' name='xdp_rxq' filepath='net/core/xdp.c' line='135' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='xdp_warn' mangled-name='xdp_warn' filepath='include/net/xdp.h' line='131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_warn'>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='80f4b756'/>
-        <parameter type-id='2448a865'/>
+      <function-decl name='xdp_warn' mangled-name='xdp_warn' filepath='net/core/xdp.c' line='457' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xdp_warn'>
+        <parameter type-id='80f4b756' name='msg' filepath='net/core/xdp.c' line='457' column='1'/>
+        <parameter type-id='80f4b756' name='func' filepath='net/core/xdp.c' line='457' column='1'/>
+        <parameter type-id='2448a865' name='line' filepath='net/core/xdp.c' line='457' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='xfrm_state_lookup_byspi' mangled-name='xfrm_state_lookup_byspi' filepath='net/xfrm/xfrm_state.c' line='1221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xfrm_state_lookup_byspi'>
@@ -129059,9 +124441,9 @@
         <parameter type-id='19c2251e' name='reqid' filepath='net/xfrm/xfrm_state.c' line='1190' column='1'/>
         <return type-id='328dda6e'/>
       </function-decl>
-      <function-decl name='xhci_address_device' mangled-name='xhci_address_device' filepath='drivers/usb/host/xhci.c' line='4230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_address_device'>
-        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='4230' column='1'/>
-        <parameter type-id='25e60cb2' name='udev' filepath='drivers/usb/host/xhci.c' line='4230' column='1'/>
+      <function-decl name='xhci_address_device' mangled-name='xhci_address_device' filepath='drivers/usb/host/xhci.c' line='4240' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_address_device'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='4240' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='drivers/usb/host/xhci.c' line='4240' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='xhci_bus_resume' mangled-name='xhci_bus_resume' filepath='drivers/usb/host/xhci-hub.c' line='1759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_bus_resume'>
@@ -129072,29 +124454,29 @@
         <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci-hub.c' line='1600' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='xhci_gen_setup' mangled-name='xhci_gen_setup' filepath='drivers/usb/host/xhci.c' line='5163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_gen_setup'>
-        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='5163' column='1'/>
-        <parameter type-id='67f831c0' name='get_quirks' filepath='drivers/usb/host/xhci.c' line='5163' column='1'/>
+      <function-decl name='xhci_gen_setup' mangled-name='xhci_gen_setup' filepath='drivers/usb/host/xhci.c' line='5173' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_gen_setup'>
+        <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/host/xhci.c' line='5173' column='1'/>
+        <parameter type-id='67f831c0' name='get_quirks' filepath='drivers/usb/host/xhci.c' line='5173' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='xhci_get_ep_ctx' mangled-name='xhci_get_ep_ctx' filepath='drivers/usb/host/xhci.h' line='2210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_get_ep_ctx'>
-        <parameter type-id='0c65b409'/>
-        <parameter type-id='971e404f'/>
-        <parameter type-id='f0981eeb'/>
+      <function-decl name='xhci_get_ep_ctx' mangled-name='xhci_get_ep_ctx' filepath='drivers/usb/host/xhci-mem.c' line='594' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_get_ep_ctx'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-mem.c' line='594' column='1'/>
+        <parameter type-id='971e404f' name='ctx' filepath='drivers/usb/host/xhci-mem.c' line='595' column='1'/>
+        <parameter type-id='f0981eeb' name='ep_index' filepath='drivers/usb/host/xhci-mem.c' line='596' column='1'/>
         <return type-id='216753a5'/>
       </function-decl>
-      <function-decl name='xhci_get_slot_ctx' mangled-name='xhci_get_slot_ctx' filepath='drivers/usb/host/xhci.h' line='2209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_get_slot_ctx'>
-        <parameter type-id='0c65b409'/>
-        <parameter type-id='971e404f'/>
+      <function-decl name='xhci_get_slot_ctx' mangled-name='xhci_get_slot_ctx' filepath='drivers/usb/host/xhci-mem.c' line='583' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_get_slot_ctx'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-mem.c' line='583' column='1'/>
+        <parameter type-id='971e404f' name='ctx' filepath='drivers/usb/host/xhci-mem.c' line='584' column='1'/>
         <return type-id='e42579ca'/>
       </function-decl>
       <function-decl name='xhci_handle_event' mangled-name='xhci_handle_event' filepath='drivers/usb/host/xhci-ring.c' line='2950' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_handle_event'>
         <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-ring.c' line='2950' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='xhci_init_driver' mangled-name='xhci_init_driver' filepath='drivers/usb/host/xhci.c' line='5407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_init_driver'>
-        <parameter type-id='c07d5ba3' name='drv' filepath='drivers/usb/host/xhci.c' line='5407' column='1'/>
-        <parameter type-id='9a55ba3d' name='over' filepath='drivers/usb/host/xhci.c' line='5408' column='1'/>
+      <function-decl name='xhci_init_driver' mangled-name='xhci_init_driver' filepath='drivers/usb/host/xhci.c' line='5417' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_init_driver'>
+        <parameter type-id='c07d5ba3' name='drv' filepath='drivers/usb/host/xhci.c' line='5417' column='1'/>
+        <parameter type-id='9a55ba3d' name='over' filepath='drivers/usb/host/xhci.c' line='5418' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='xhci_resume' mangled-name='xhci_resume' filepath='drivers/usb/host/xhci.c' line='1085' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_resume'>
@@ -129111,9 +124493,9 @@
         <parameter type-id='3eb7c31c' name='flags' filepath='drivers/usb/host/xhci-mem.c' line='425' column='1'/>
         <return type-id='52a50596'/>
       </function-decl>
-      <function-decl name='xhci_ring_free' mangled-name='xhci_ring_free' filepath='drivers/usb/host/xhci.h' line='2057' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_ring_free'>
-        <parameter type-id='0c65b409'/>
-        <parameter type-id='52a50596'/>
+      <function-decl name='xhci_ring_free' mangled-name='xhci_ring_free' filepath='drivers/usb/host/xhci-mem.c' line='282' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_ring_free'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci-mem.c' line='282' column='1'/>
+        <parameter type-id='52a50596' name='ring' filepath='drivers/usb/host/xhci-mem.c' line='282' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='xhci_run' mangled-name='xhci_run' filepath='drivers/usb/host/xhci.c' line='637' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_run'>
@@ -129130,8 +124512,8 @@
         <parameter type-id='2e0bb6d4' name='event_ring_deq' filepath='drivers/usb/host/xhci-ring.c' line='3027' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='xhci_vendor_get_ops' mangled-name='xhci_vendor_get_ops' filepath='drivers/usb/host/xhci.c' line='4326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_vendor_get_ops'>
-        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci.c' line='4326' column='1'/>
+      <function-decl name='xhci_vendor_get_ops' mangled-name='xhci_vendor_get_ops' filepath='drivers/usb/host/xhci.c' line='4336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='xhci_vendor_get_ops'>
+        <parameter type-id='0c65b409' name='xhci' filepath='drivers/usb/host/xhci.c' line='4336' column='1'/>
         <return type-id='1e9ca7e3'/>
       </function-decl>
     </abi-instr>
diff --git a/build.config.common b/build.config.common
index 22771bb4e3f39..754271c1114c7 100644
--- a/build.config.common
+++ b/build.config.common
@@ -1,7 +1,7 @@
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.constants
 
 BRANCH=android13-5.10
-KMI_GENERATION=0
+KMI_GENERATION=1
 
 LLVM=1
 DEPMOD=depmod
-- 
GitLab


From 2d490f129561c7cb45482b0aa866e7b973489e8f Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Tue, 8 Mar 2022 17:23:14 -0800
Subject: [PATCH 4360/4878] ANDROID: fuse-bpf: Avoid reusing uint64_t for file

This moves the backing/fd files to their own space, instead of reusing
the userspace provided fds.

Bug: 222619123
Test: fuse_test passes, on cuttlefish CtsCameraTestCases passes
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I5d3b1ea8299f249ef5adc1ce2b7f45404a041208
---
 fs/fuse/backing.c         |  9 +++++----
 fs/fuse/dev.c             |  5 +++--
 fs/fuse/dir.c             | 35 +++++++++++++++++------------------
 fs/fuse/fuse_i.h          |  3 +--
 fs/fuse/inode.c           |  6 ++----
 include/uapi/linux/fuse.h |  6 ++++++
 6 files changed, 34 insertions(+), 30 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 7cb9a17eb71c2..63bfd60897b16 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -874,8 +874,8 @@ int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *fli,
 			.value = &fli->feo,
 		},
 		.out_args[1] = (struct fuse_arg) {
-			.size = sizeof(fli->febo),
-			.value = &fli->febo,
+			.size = sizeof(fli->feb.out),
+			.value = &fli->feb.out,
 		},
 	};
 
@@ -917,6 +917,7 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 	struct inode *inode, *backing_inode;
 	struct fuse_entry_out *feo = fa->out_args[0].value;
 	struct fuse_entry_bpf_out *febo = fa->out_args[1].value;
+	struct fuse_entry_bpf *feb = container_of(febo, struct fuse_entry_bpf, out);
 
 	fd = get_fuse_dentry(entry);
 	if (!fd)
@@ -952,7 +953,7 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 		break;
 
 	case FUSE_ACTION_REPLACE: {
-		struct file *bpf_file = (struct file*) febo->bpf_fd;
+		struct file *bpf_file = feb->bpf_file;
 		struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
 
 		if (bpf_file && !IS_ERR(bpf_file))
@@ -985,7 +986,7 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 		struct file *backing_file;
 
 		fc = get_fuse_mount(dir)->fc;
-		backing_file = (struct file *) febo->backing_fd;
+		backing_file = feb->backing_file;
 		if (!backing_file || IS_ERR(backing_file))
 			return ERR_PTR(-EIO);
 
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 2b0e9f16fe24c..997ea0cabd7e7 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1948,11 +1948,12 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
 		req->args->out_args[1].size == sizeof(struct fuse_entry_bpf_out)) {
 		struct fuse_entry_bpf_out *febo = (struct fuse_entry_bpf_out *)
 				req->args->out_args[1].value;
+		struct fuse_entry_bpf *feb = container_of(febo, struct fuse_entry_bpf, out);
 
 		if (febo->backing_action == FUSE_ACTION_REPLACE)
-			febo->backing_fd = (uint64_t) fget(febo->backing_fd);
+			feb->backing_file = fget(febo->backing_fd);
 		if (febo->bpf_action == FUSE_ACTION_REPLACE)
-			febo->bpf_fd = (uint64_t) fget(febo->bpf_fd);
+			feb->bpf_file = fget(febo->bpf_fd);
 	}
 
 	spin_lock(&fpq->lock);
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 1081bec2fee19..541fad4362e3a 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -196,7 +196,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 	else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
 		 (flags & LOOKUP_REVAL)) {
 		struct fuse_entry_out outarg;
-		struct fuse_entry_bpf_out bpf_outarg;
+		struct fuse_entry_bpf bpf_arg;
 		FUSE_ARGS(args);
 		struct fuse_forget_link *forget;
 		u64 attr_version;
@@ -234,7 +234,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 		parent = dget_parent(entry);
 
 		fuse_lookup_init(fm->fc, &args, get_node_id(d_inode(parent)),
-				 &entry->d_name, &outarg, &bpf_outarg);
+				 &entry->d_name, &outarg, &bpf_arg.out);
 		ret = fuse_simple_request(fm, &args);
 		dput(parent);
 
@@ -243,15 +243,15 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 		 * change the backing file ever, so not sure what is correct
 		 * here yet, especially as we can't return an error to user
 		 */
-		if (bpf_outarg.backing_action == FUSE_ACTION_REPLACE) {
-			struct file *file = (struct file *) bpf_outarg.backing_fd;
+		if (bpf_arg.out.backing_action == FUSE_ACTION_REPLACE) {
+			struct file *file = bpf_arg.backing_file;
 
 			if (file && !IS_ERR(file))
 				fput(file);
 		}
 
-		if (bpf_outarg.bpf_action == FUSE_ACTION_REPLACE) {
-			struct file *file = (struct file *) bpf_outarg.bpf_fd;
+		if (bpf_arg.out.bpf_action == FUSE_ACTION_REPLACE) {
+			struct file *file = bpf_arg.bpf_file;
 
 			if (file && !IS_ERR(file))
 				fput(file);
@@ -499,12 +499,12 @@ bool fuse_invalid_attr(struct fuse_attr *attr)
 
 int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
 		     struct fuse_entry_out *outarg,
-		     struct fuse_entry_bpf_out *bpf_outarg,
 		     struct dentry *entry,
 		     struct inode **inode)
 {
 	struct fuse_mount *fm = get_fuse_mount_super(sb);
 	FUSE_ARGS(args);
+	struct fuse_entry_bpf bpf_arg = {0};
 	struct fuse_forget_link *forget;
 	u64 attr_version;
 	int err;
@@ -522,11 +522,11 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name
 
 	attr_version = fuse_get_attr_version(fm->fc);
 
-	fuse_lookup_init(fm->fc, &args, nodeid, name, outarg, bpf_outarg);
+	fuse_lookup_init(fm->fc, &args, nodeid, name, outarg, &bpf_arg.out);
 	err = fuse_simple_request(fm, &args);
 
 #ifdef CONFIG_FUSE_BPF
-	if (err == sizeof(*bpf_outarg)) {
+	if (err == sizeof(bpf_arg.out)) {
 		/* TODO Make sure this handles invalid handles */
 		/* TODO Do we need the same code in revalidate */
 		struct file *backing_file;
@@ -537,20 +537,20 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name
 			goto out_queue_forget;
 
 		err = -EINVAL;
-		if (bpf_outarg->backing_action != FUSE_ACTION_REPLACE)
+		if (bpf_arg.out.backing_action != FUSE_ACTION_REPLACE)
 			goto out_queue_forget;
 
-		backing_file = (struct file *) bpf_outarg->backing_fd;
+		backing_file = bpf_arg.backing_file;
 		if (!backing_file || IS_ERR(backing_file))
 			goto out_queue_forget;
 
 		backing_inode = backing_file->f_inode;
 		*inode = fuse_iget_backing(sb, backing_inode);
 		if (!*inode)
-			goto bpf_outarg_out;
+			goto bpf_arg_out;
 
-		if (bpf_outarg->bpf_action == FUSE_ACTION_REPLACE) {
-			struct file *bpf_file = (struct file*) bpf_outarg->bpf_fd;
+		if (bpf_arg.out.bpf_action == FUSE_ACTION_REPLACE) {
+			struct file *bpf_file = bpf_arg.bpf_file;
 			struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
 
 			if (bpf_file && !IS_ERR(bpf_file))
@@ -560,7 +560,7 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name
 				iput(*inode);
 				*inode = NULL;
 				err = PTR_ERR(bpf_prog);
-				goto bpf_outarg_out;
+				goto bpf_arg_out;
 			}
 			get_fuse_inode(*inode)->bpf = bpf_prog;
 		}
@@ -568,7 +568,7 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name
 		get_fuse_dentry(entry)->backing_path = backing_file->f_path;
 		path_get(&get_fuse_dentry(entry)->backing_path);
 
-bpf_outarg_out:
+bpf_arg_out:
 		fput(backing_file);
 	} else
 #endif
@@ -609,7 +609,6 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 {
 	int err;
 	struct fuse_entry_out outarg;
-	struct fuse_entry_bpf_out bpf_outarg = {0};
 	struct inode *inode;
 	struct dentry *newent;
 	bool outarg_valid = true;
@@ -631,7 +630,7 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 
 	locked = fuse_lock_inode(dir);
 	err = fuse_lookup_name(dir->i_sb, get_node_id(dir), &entry->d_name,
-			       &outarg, &bpf_outarg, entry, &inode);
+			       &outarg, entry, &inode);
 	fuse_unlock_inode(dir, locked);
 	if (err == -ENOENT) {
 		outarg_valid = false;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index a75d82539ac79..7be98af1b1b67 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -950,7 +950,6 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
 
 int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
 		     struct fuse_entry_out *outarg,
-		     struct fuse_entry_bpf_out *bpf_outarg,
 		     struct dentry *entry, struct inode **inode);
 
 /**
@@ -1521,7 +1520,7 @@ void *fuse_file_fallocate_finalize(struct fuse_args *fa,
 
 struct fuse_lookup_io {
 	struct fuse_entry_out feo;
-	struct fuse_entry_bpf_out febo;
+	struct fuse_entry_bpf feb;
 };
 
 int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *feo,
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index e9e445d7959d7..99b0edfb206c5 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -923,14 +923,13 @@ static struct dentry *fuse_get_dentry(struct super_block *sb,
 	inode = ilookup5(sb, handle->nodeid, fuse_inode_eq, &fii);
 	if (!inode) {
 		struct fuse_entry_out outarg;
-		struct fuse_entry_bpf_out bpf_outarg;
 		const struct qstr name = QSTR_INIT(".", 1);
 
 		if (!fc->export_support)
 			goto out_err;
 
 		err = fuse_lookup_name(sb, handle->nodeid, &name, &outarg,
-				       &bpf_outarg, NULL, &inode);
+				       NULL, &inode);
 		if (err && err != -ENOENT)
 			goto out_err;
 		if (err || !inode) {
@@ -1024,7 +1023,6 @@ static struct dentry *fuse_get_parent(struct dentry *child)
 	struct inode *inode;
 	struct dentry *parent;
 	struct fuse_entry_out outarg;
-	struct fuse_entry_bpf_out bpf_outarg;
 	const struct qstr name = QSTR_INIT("..", 2);
 	int err;
 
@@ -1032,7 +1030,7 @@ static struct dentry *fuse_get_parent(struct dentry *child)
 		return ERR_PTR(-ESTALE);
 
 	err = fuse_lookup_name(child_inode->i_sb, get_node_id(child_inode),
-			       &name, &outarg, &bpf_outarg, NULL, &inode);
+			       &name, &outarg, NULL, &inode);
 	if (err) {
 		if (err == -ENOENT)
 			return ERR_PTR(-ESTALE);
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 7b7376149620c..a91196a34e4d6 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -527,6 +527,12 @@ struct fuse_entry_bpf_out {
 	uint64_t	bpf_fd;
 };
 
+struct fuse_entry_bpf {
+	struct fuse_entry_bpf_out out;
+	struct file *backing_file;
+	struct file *bpf_file;
+};
+
 struct fuse_forget_in {
 	uint64_t	nlookup;
 };
-- 
GitLab


From e182f50c169213e50c5acf7b3fe66a85eb1c92fb Mon Sep 17 00:00:00 2001
From: Jia Yang <jiayang5@huawei.com>
Date: Wed, 9 Mar 2022 19:09:35 +0800
Subject: [PATCH 4361/4878] f2fs: remove unnecessary read for
 F2FS_FITS_IN_INODE

F2FS_FITS_IN_INODE only cares the type of f2fs inode, so there
is no need to read node page of f2fs inode.

Signed-off-by: Jia Yang <jiayang5@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/file.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 5b3ad2257687c..c572f8d894338 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -814,7 +814,7 @@ int f2fs_getattr(const struct path *path, struct kstat *stat,
 {
 	struct inode *inode = d_inode(path->dentry);
 	struct f2fs_inode_info *fi = F2FS_I(inode);
-	struct f2fs_inode *ri;
+	struct f2fs_inode *ri = NULL;
 	unsigned int flags;
 
 	if (f2fs_has_extra_attr(inode) &&
@@ -3050,7 +3050,7 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
 	struct inode *inode = file_inode(filp);
 	struct f2fs_inode_info *fi = F2FS_I(inode);
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-	struct page *ipage;
+	struct f2fs_inode *ri = NULL;
 	kprojid_t kprojid;
 	int err;
 
@@ -3074,17 +3074,8 @@ static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
 	if (IS_NOQUOTA(inode))
 		return err;
 
-	ipage = f2fs_get_node_page(sbi, inode->i_ino);
-	if (IS_ERR(ipage))
-		return PTR_ERR(ipage);
-
-	if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
-								i_projid)) {
-		err = -EOVERFLOW;
-		f2fs_put_page(ipage, 1);
-		return err;
-	}
-	f2fs_put_page(ipage, 1);
+	if (!F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
+		return -EOVERFLOW;
 
 	err = f2fs_dquot_initialize(inode);
 	if (err)
-- 
GitLab


From e3d44a0028f58cd1dcba053120652e1a1ea6ce12 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 4 Mar 2022 09:40:05 -0800
Subject: [PATCH 4362/4878] f2fs: don't get FREEZE lock in f2fs_evict_inode in
 frozen fs

Let's purge inode cache in order to avoid the below deadlock.

[freeze test]                         shrinkder
freeze_super
 - pwercpu_down_write(SB_FREEZE_FS)
                                       - super_cache_scan
                                         - down_read(&sb->s_umount)
                                           - prune_icache_sb
                                            - dispose_list
                                             - evict
                                              - f2fs_evict_inode
thaw_super
 - down_write(&sb->s_umount);
                                              - __percpu_down_read(SB_FREEZE_FS)

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs | 1 +
 fs/f2fs/debug.c                         | 1 +
 fs/f2fs/f2fs.h                          | 1 +
 fs/f2fs/inode.c                         | 6 ++++--
 fs/f2fs/super.c                         | 4 ++++
 5 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 24338eb90d7dd..e4ccc42aea012 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -458,6 +458,7 @@ Description:	Show status of f2fs superblock in real time.
 		0x800  SBI_QUOTA_SKIP_FLUSH  skip flushing quota in current CP
 		0x1000 SBI_QUOTA_NEED_REPAIR quota file may be corrupted
 		0x2000 SBI_IS_RESIZEFS       resizefs is in process
+		0x4000 SBI_IS_FREEZING       freefs is in process
 		====== ===================== =================================
 
 What:		/sys/fs/f2fs/<disk>/ckpt_thread_ioprio
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 9a13902c77026..cba5eab24595f 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -338,6 +338,7 @@ static char *s_flag[] = {
 	[SBI_QUOTA_SKIP_FLUSH]	= " quota_skip_flush",
 	[SBI_QUOTA_NEED_REPAIR]	= " quota_need_repair",
 	[SBI_IS_RESIZEFS]	= " resizefs",
+	[SBI_IS_FREEZING]	= " freezefs",
 };
 
 static int stat_show(struct seq_file *s, void *v)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 14b905f0237aa..334cebabab990 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1292,6 +1292,7 @@ enum {
 	SBI_QUOTA_SKIP_FLUSH,			/* skip flushing quota in current CP */
 	SBI_QUOTA_NEED_REPAIR,			/* quota file may be corrupted */
 	SBI_IS_RESIZEFS,			/* resizefs is in process */
+	SBI_IS_FREEZING,			/* freezefs is in process */
 };
 
 enum {
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 8507e92b95d9c..ad5fde39d3bd0 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -778,7 +778,8 @@ void f2fs_evict_inode(struct inode *inode)
 	f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
 	f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
 
-	sb_start_intwrite(inode->i_sb);
+	if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
+		sb_start_intwrite(inode->i_sb);
 	set_inode_flag(inode, FI_NO_ALLOC);
 	i_size_write(inode, 0);
 retry:
@@ -809,7 +810,8 @@ retry:
 		if (dquot_initialize_needed(inode))
 			set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
 	}
-	sb_end_intwrite(inode->i_sb);
+	if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
+		sb_end_intwrite(inode->i_sb);
 no_delete:
 	dquot_drop(inode);
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 8256c7f1abb1f..e711d2e0b8d86 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1674,11 +1674,15 @@ static int f2fs_freeze(struct super_block *sb)
 	/* ensure no checkpoint required */
 	if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list))
 		return -EINVAL;
+
+	/* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */
+	set_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
 	return 0;
 }
 
 static int f2fs_unfreeze(struct super_block *sb)
 {
+	clear_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
 	return 0;
 }
 
-- 
GitLab


From 4bab14807fc76be8451bde7c588601e3364b1ab2 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 7 Mar 2022 17:27:46 -0800
Subject: [PATCH 4363/4878] f2fs: use spin_lock to avoid hang

[14696.634553] task:cat             state:D stack:    0 pid:1613738 ppid:1613735 flags:0x00000004
[14696.638285] Call Trace:
[14696.639038]  <TASK>
[14696.640032]  __schedule+0x302/0x930
[14696.640969]  schedule+0x58/0xd0
[14696.641799]  schedule_preempt_disabled+0x18/0x30
[14696.642890]  __mutex_lock.constprop.0+0x2fb/0x4f0
[14696.644035]  ? mod_objcg_state+0x10c/0x310
[14696.645040]  ? obj_cgroup_charge+0xe1/0x170
[14696.646067]  __mutex_lock_slowpath+0x13/0x20
[14696.647126]  mutex_lock+0x34/0x40
[14696.648070]  stat_show+0x25/0x17c0 [f2fs]
[14696.649218]  seq_read_iter+0x120/0x4b0
[14696.650289]  ? aa_file_perm+0x12a/0x500
[14696.651357]  ? lru_cache_add+0x1c/0x20
[14696.652470]  seq_read+0xfd/0x140
[14696.653445]  full_proxy_read+0x5c/0x80
[14696.654535]  vfs_read+0xa0/0x1a0
[14696.655497]  ksys_read+0x67/0xe0
[14696.656502]  __x64_sys_read+0x1a/0x20
[14696.657580]  do_syscall_64+0x3b/0xc0
[14696.658671]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[14696.660068] RIP: 0033:0x7efe39df1cb2
[14696.661133] RSP: 002b:00007ffc8badd948 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[14696.662958] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007efe39df1cb2
[14696.664757] RDX: 0000000000020000 RSI: 00007efe399df000 RDI: 0000000000000003
[14696.666542] RBP: 00007efe399df000 R08: 00007efe399de010 R09: 00007efe399de010
[14696.668363] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000
[14696.670155] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000
[14696.671965]  </TASK>
[14696.672826] task:umount          state:D stack:    0 pid:1614985 ppid:1614984 flags:0x00004000
[14696.674930] Call Trace:
[14696.675903]  <TASK>
[14696.676780]  __schedule+0x302/0x930
[14696.677927]  schedule+0x58/0xd0
[14696.679019]  schedule_preempt_disabled+0x18/0x30
[14696.680412]  __mutex_lock.constprop.0+0x2fb/0x4f0
[14696.681783]  ? destroy_inode+0x65/0x80
[14696.683006]  __mutex_lock_slowpath+0x13/0x20
[14696.684305]  mutex_lock+0x34/0x40
[14696.685442]  f2fs_destroy_stats+0x1e/0x60 [f2fs]
[14696.686803]  f2fs_put_super+0x158/0x390 [f2fs]
[14696.688238]  generic_shutdown_super+0x7a/0x120
[14696.689621]  kill_block_super+0x27/0x50
[14696.690894]  kill_f2fs_super+0x7f/0x100 [f2fs]
[14696.692311]  deactivate_locked_super+0x35/0xa0
[14696.693698]  deactivate_super+0x40/0x50
[14696.694985]  cleanup_mnt+0x139/0x190
[14696.696209]  __cleanup_mnt+0x12/0x20
[14696.697390]  task_work_run+0x64/0xa0
[14696.698587]  exit_to_user_mode_prepare+0x1b7/0x1c0
[14696.700053]  syscall_exit_to_user_mode+0x27/0x50
[14696.701418]  do_syscall_64+0x48/0xc0
[14696.702630]  entry_SYSCALL_64_after_hwframe+0x44/0xae

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/debug.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index cba5eab24595f..6d26872c7364d 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -21,7 +21,7 @@
 #include "gc.h"
 
 static LIST_HEAD(f2fs_stat_list);
-static DEFINE_MUTEX(f2fs_stat_mutex);
+static DEFINE_RAW_SPINLOCK(f2fs_stat_lock);
 #ifdef CONFIG_DEBUG_FS
 static struct dentry *f2fs_debugfs_root;
 #endif
@@ -345,8 +345,9 @@ static int stat_show(struct seq_file *s, void *v)
 {
 	struct f2fs_stat_info *si;
 	int i = 0, j = 0;
+	unsigned long flags;
 
-	mutex_lock(&f2fs_stat_mutex);
+	raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
 	list_for_each_entry(si, &f2fs_stat_list, stat_list) {
 		update_general_status(si->sbi);
 
@@ -577,7 +578,7 @@ static int stat_show(struct seq_file *s, void *v)
 		seq_printf(s, "  - paged : %llu KB\n",
 				si->page_mem >> 10);
 	}
-	mutex_unlock(&f2fs_stat_mutex);
+	raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
 	return 0;
 }
 
@@ -588,6 +589,7 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
 	struct f2fs_stat_info *si;
+	unsigned long flags;
 	int i;
 
 	si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
@@ -623,9 +625,9 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi)
 	atomic_set(&sbi->max_aw_cnt, 0);
 	atomic_set(&sbi->max_vw_cnt, 0);
 
-	mutex_lock(&f2fs_stat_mutex);
+	raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
 	list_add_tail(&si->stat_list, &f2fs_stat_list);
-	mutex_unlock(&f2fs_stat_mutex);
+	raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
 
 	return 0;
 }
@@ -633,10 +635,11 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi)
 void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_stat_info *si = F2FS_STAT(sbi);
+	unsigned long flags;
 
-	mutex_lock(&f2fs_stat_mutex);
+	raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
 	list_del(&si->stat_list);
-	mutex_unlock(&f2fs_stat_mutex);
+	raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
 
 	kfree(si);
 }
-- 
GitLab


From 6c6f661f9d74fdb6a08ab26742f5b256bf7d93e5 Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 9 Mar 2022 18:13:08 +0000
Subject: [PATCH 4364/4878] FROMGIT: KVM: arm64: Really propagate PSCI
 SYSTEM_RESET2 arguments to userspace

Commit d43583b890e7 ("KVM: arm64: Expose PSCI SYSTEM_RESET2 call to the
guest") hooked up the SYSTEM_RESET2 PSCI call for guests but failed to
preserve its arguments for userspace, instead overwriting them with
zeroes via smccc_set_retval(). As Linux only passes zeroes for these
arguments, this appeared to be working for Linux guests. Oh well.

Don't call smccc_set_retval() for a SYSTEM_RESET2 heading to userspace
and instead set X0 (and only X0) explicitly to PSCI_RET_INTERNAL_FAILURE
just in case the vCPU re-enters the guest.

Fixes: d43583b890e7 ("KVM: arm64: Expose PSCI SYSTEM_RESET2 call to the guest")
Reported-by: Andrew Walbran <qwandor@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220309181308.982-1-will@kernel.org
(cherry picked from commit 9d3e7b7c82fd9d40240867ef4c45388cd05031f3
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Bug: 216801012
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ieead1a813e6b4dfee1aa89e42ee1926efcd5f590
---
 arch/arm64/kvm/psci.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 27c6603420b1e..09c1385efcea3 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -339,14 +339,14 @@ static int kvm_psci_1_x_call(struct kvm_vcpu *vcpu, u32 minor)
 		if (minor >= 1) {
 			arg = smccc_get_arg1(vcpu);
 
-			if (arg > PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET &&
-			    arg < PSCI_1_1_RESET_TYPE_VENDOR_START) {
-				val = PSCI_RET_INVALID_PARAMS;
-			} else {
+			if (arg <= PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET ||
+			    arg >= PSCI_1_1_RESET_TYPE_VENDOR_START) {
 				kvm_psci_system_reset2(vcpu);
-				val = PSCI_RET_INTERNAL_FAILURE;
-				ret = 0;
+				vcpu_set_reg(vcpu, 0, PSCI_RET_INTERNAL_FAILURE);
+				return 0;
 			}
+
+			val = PSCI_RET_INVALID_PARAMS;
 			break;
 		};
 		fallthrough;
-- 
GitLab


From 25cf8abbb75337e51b6423075a11720a02afbaf8 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 9 Mar 2022 17:29:18 -0800
Subject: [PATCH 4365/4878] ANDROID: fuse-bpf: Report errors to finalize

Ensure finalize has access to the returned error code, if it had one.

Test: generic/377
Bug: 217570523
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Id9a0aca10c3158f8b414e0cbc2dd1282bb5ef16b
---
 fs/fuse/backing.c | 9 +++++++--
 fs/fuse/fuse_i.h  | 4 ++--
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 63bfd60897b16..c351d04ccd9a9 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -557,12 +557,15 @@ int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
 		vfs_listxattr(get_fuse_dentry(dentry)->backing_path.dentry,
 			      list, size);
 
+	if (ret < 0)
+		return ret;
+
 	if (fa->out_argvar)
 		fa->out_args[0].size = ret;
 	else
 		((struct fuse_getxattr_out *)fa->out_args[0].value)->size = ret;
 
-	return 0;
+	return ret;
 }
 
 void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
@@ -570,11 +573,13 @@ void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
 {
 	struct fuse_getxattr_out *fgo;
 
+	if (fa->error_in)
+		return NULL;
+
 	if (fa->out_argvar)
 		return ERR_PTR(fa->out_args[0].size);
 
 	fgo = fa->out_args[0].value;
-
 	return ERR_PTR(fgo->size);
 }
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 7be98af1b1b67..4422752566fc2 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1845,12 +1845,12 @@ struct fuse_err_ret {
 			ERR_PTR(backing(&fa, args)),			\
 			true,						\
 		};							\
+		if (IS_ERR(fer.result))					\
+			fa.error_in = PTR_ERR(fer.result);		\
 		if (!(ext_flags & FUSE_BPF_POST_FILTER))		\
 			break;						\
 									\
 		fa.opcode |= FUSE_POSTFILTER;				\
-		if (IS_ERR(fer.result))					\
-			fa.error_in = PTR_ERR(fer.result);		\
 		for (i = 0; i < fa.out_numargs; ++i)			\
 			fa.in_args[fa.in_numargs++] =			\
 				(struct fuse_in_arg) {			\
-- 
GitLab


From 07c2fd80f6e306c486a2f65976f8b72ab0b355e8 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Wed, 9 Mar 2022 08:54:37 -0800
Subject: [PATCH 4366/4878] ANDROID: mm: page_pinner: fix build warning

Fix build warning below.

> All warnings (new ones prefixed by >>):
>
> >> mm/page_pinner.c:304:22: warning: variable 'page_pinner' set but not used [-Wunused-but-set-variable]
>            struct page_pinner *page_pinner;
>                                ^
>    1 warning generated.
>

Fixes: ddc4a4879735 ("ANDROID: mm: page_pinner: introduce failure_tracking feature")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I02cfd98f9c33745920f883d5e2e2bc2730f662a2
---
 mm/page_pinner.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index 3f5c48af31352..12d545c44a666 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -328,7 +328,6 @@ void __dump_page_pinner(struct page *page)
 void __page_pinner_migration_failed(struct page *page)
 {
 	struct page_ext *page_ext = lookup_page_ext(page);
-	struct page_pinner *page_pinner;
 	struct captured_pinner record;
 	unsigned long flags;
 	unsigned int idx;
@@ -336,7 +335,6 @@ void __page_pinner_migration_failed(struct page *page)
 	if (unlikely(!page_ext))
 		return;
 
-	page_pinner = get_page_pinner(page_ext);
 	if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
 		return;
 
-- 
GitLab


From 2966e1db0fcb784196898a969423b710651bd83a Mon Sep 17 00:00:00 2001
From: Kai Lueke <kailueke@linux.microsoft.com>
Date: Thu, 3 Mar 2022 15:55:10 +0100
Subject: [PATCH 4367/4878] FROMGIT: Revert "xfrm: state and policy should fail
 if XFRMA_IF_ID 0"

This reverts commit 68ac0f3810e76a853b5f7b90601a05c3048b8b54 because ID
0 was meant to be used for configuring the policy/state without
matching for a specific interface (e.g., Cilium is affected, see
https://github.com/cilium/cilium/pull/18789 and
https://github.com/cilium/cilium/pull/19019).

Signed-off-by: Kai Lueke <kailueke@linux.microsoft.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Link: https://lore.kernel.org/netdev/20220309130839.3263912-3-steffen.klassert@secunet.com/
(cherry picked from commit a3d9001b4e287fc043e5539d03d71a32ab114bcb
 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=a3d9001b4e287fc043e5539d03d71a32ab114bcb)
Bug: 221187056
Test: run_net_test.sh
Change-Id: Iccaf42f776cad9166f808c490bfce586f850554c
---
 net/xfrm/xfrm_user.c | 21 +++------------------
 1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 0c2ef2eccace8..bcd3939bbc663 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -629,13 +629,8 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
 
 	xfrm_smark_init(attrs, &x->props.smark);
 
-	if (attrs[XFRMA_IF_ID]) {
+	if (attrs[XFRMA_IF_ID])
 		x->if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
-		if (!x->if_id) {
-			err = -EINVAL;
-			goto error;
-		}
-	}
 
 	err = __xfrm_init_state(x, false, attrs[XFRMA_OFFLOAD_DEV]);
 	if (err)
@@ -1371,13 +1366,8 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	mark = xfrm_mark_get(attrs, &m);
 
-	if (attrs[XFRMA_IF_ID]) {
+	if (attrs[XFRMA_IF_ID])
 		if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
-		if (!if_id) {
-			err = -EINVAL;
-			goto out_noput;
-		}
-	}
 
 	if (p->info.seq) {
 		x = xfrm_find_acq_byseq(net, mark, p->info.seq);
@@ -1690,13 +1680,8 @@ static struct xfrm_policy *xfrm_policy_construct(struct net *net, struct xfrm_us
 
 	xfrm_mark_get(attrs, &xp->mark);
 
-	if (attrs[XFRMA_IF_ID]) {
+	if (attrs[XFRMA_IF_ID])
 		xp->if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
-		if (!xp->if_id) {
-			err = -EINVAL;
-			goto error;
-		}
-	}
 
 	return xp;
  error:
-- 
GitLab


From 758ca138da0999d820ea47a38c4c4e2bae4c55b1 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Thu, 10 Mar 2022 15:40:05 -0800
Subject: [PATCH 4368/4878] ANDROID: selftests: incfs: Add stacked_mount_test

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: Ie09d6c1b04e0da7787d371c1cec5c04783b576a7
---
 .../selftests/filesystems/incfs/incfs_test.c  | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/tools/testing/selftests/filesystems/incfs/incfs_test.c b/tools/testing/selftests/filesystems/incfs/incfs_test.c
index 2d2bc933fefc5..e3ba304f39cad 100644
--- a/tools/testing/selftests/filesystems/incfs/incfs_test.c
+++ b/tools/testing/selftests/filesystems/incfs/incfs_test.c
@@ -4610,6 +4610,29 @@ out:
 	return result;
 }
 
+static int stacked_mount_test(const char *mount_dir)
+{
+	int result = TEST_FAILURE;
+	char *backing_dir = NULL;
+
+	/* Mount with no node */
+	TEST(backing_dir = create_backing_dir(mount_dir), backing_dir);
+	TESTEQUAL(mount_fs(mount_dir, backing_dir, 0), 0);
+	/* Try mounting another instance with same name */
+	TESTEQUAL(mount_fs(mount_dir, backing_dir, 0), 0);
+	/* Try unmounting the first instance */
+	TESTEQUAL(umount_fs(mount_dir), 0);
+	/* Try unmounting the second instance */
+	TESTEQUAL(umount_fs(mount_dir), 0);
+	result = TEST_SUCCESS;
+out:
+	/* Cleanup */
+	rmdir(mount_dir);
+	rmdir(backing_dir);
+	free(backing_dir);
+	return result;
+}
+
 static char *setup_mount_dir()
 {
 	struct stat st;
@@ -4731,6 +4754,7 @@ int main(int argc, char *argv[])
 		MAKE_TEST(stat_test),
 		MAKE_TEST(sysfs_test),
 		MAKE_TEST(sysfs_rename_test),
+		MAKE_TEST(stacked_mount_test),
 	};
 #undef MAKE_TEST
 
-- 
GitLab


From 206cfe2dac3ed79bcd1c759f05400593a5f55488 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 26 Oct 2021 14:01:46 +0200
Subject: [PATCH 4369/4878] x86,bugs: Unconditionally allow
 spectre_v2=retpoline,amd

commit f8a66d608a3e471e1202778c2a36cbdc96bae73b upstream.

Currently Linux prevents usage of retpoline,amd on !AMD hardware, this
is unfriendly and gets in the way of testing. Remove this restriction.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/r/20211026120310.487348118@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/bugs.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index d41b70fe4918e..d4e7a87558348 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -845,13 +845,6 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
 		return SPECTRE_V2_CMD_AUTO;
 	}
 
-	if (cmd == SPECTRE_V2_CMD_RETPOLINE_AMD &&
-	    boot_cpu_data.x86_vendor != X86_VENDOR_HYGON &&
-	    boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
-		pr_err("retpoline,amd selected but CPU is not AMD. Switching to AUTO select\n");
-		return SPECTRE_V2_CMD_AUTO;
-	}
-
 	spec_v2_print_cond(mitigation_options[i].option,
 			   mitigation_options[i].secure);
 	return cmd;
-- 
GitLab


From f38774bb6e231d647d40ceeb8ddf9082eabde667 Mon Sep 17 00:00:00 2001
From: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Date: Wed, 16 Feb 2022 20:57:00 +0100
Subject: [PATCH 4370/4878] x86/speculation: Rename RETPOLINE_AMD to
 RETPOLINE_LFENCE

commit d45476d9832409371537013ebdd8dc1a7781f97a upstream.

The RETPOLINE_AMD name is unfortunate since it isn't necessarily
AMD only, in fact Hygon also uses it. Furthermore it will likely be
sufficient for some Intel processors. Therefore rename the thing to
RETPOLINE_LFENCE to better describe what it is.

Add the spectre_v2=retpoline,lfence option as an alias to
spectre_v2=retpoline,amd to preserve existing setups. However, the output
of /sys/devices/system/cpu/vulnerabilities/spectre_v2 will be changed.

  [ bp: Fix typos, massage. ]

Co-developed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
[fllinden@amazon.com: backported to 5.10]
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/cpufeatures.h       |  2 +-
 arch/x86/include/asm/nospec-branch.h     | 12 +++++-----
 arch/x86/kernel/cpu/bugs.c               | 29 +++++++++++++++---------
 tools/arch/x86/include/asm/cpufeatures.h |  2 +-
 4 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index dad350d42ecfb..3b407f46f1a0d 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -204,7 +204,7 @@
 #define X86_FEATURE_SME			( 7*32+10) /* AMD Secure Memory Encryption */
 #define X86_FEATURE_PTI			( 7*32+11) /* Kernel Page Table Isolation enabled */
 #define X86_FEATURE_RETPOLINE		( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
-#define X86_FEATURE_RETPOLINE_AMD	( 7*32+13) /* "" AMD Retpoline mitigation for Spectre variant 2 */
+#define X86_FEATURE_RETPOLINE_LFENCE	( 7*32+13) /* "" Use LFENCE for Spectre variant 2 */
 #define X86_FEATURE_INTEL_PPIN		( 7*32+14) /* Intel Processor Inventory Number */
 #define X86_FEATURE_CDP_L2		( 7*32+15) /* Code and Data Prioritization L2 */
 #define X86_FEATURE_MSR_SPEC_CTRL	( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index cb9ad6b739737..fb6899cb22b05 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -82,7 +82,7 @@
 #ifdef CONFIG_RETPOLINE
 	ALTERNATIVE_2 __stringify(ANNOTATE_RETPOLINE_SAFE; jmp *%\reg), \
 		      __stringify(jmp __x86_retpoline_\reg), X86_FEATURE_RETPOLINE, \
-		      __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; jmp *%\reg), X86_FEATURE_RETPOLINE_AMD
+		      __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; jmp *%\reg), X86_FEATURE_RETPOLINE_LFENCE
 #else
 	jmp	*%\reg
 #endif
@@ -92,7 +92,7 @@
 #ifdef CONFIG_RETPOLINE
 	ALTERNATIVE_2 __stringify(ANNOTATE_RETPOLINE_SAFE; call *%\reg), \
 		      __stringify(call __x86_retpoline_\reg), X86_FEATURE_RETPOLINE, \
-		      __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; call *%\reg), X86_FEATURE_RETPOLINE_AMD
+		      __stringify(lfence; ANNOTATE_RETPOLINE_SAFE; call *%\reg), X86_FEATURE_RETPOLINE_LFENCE
 #else
 	call	*%\reg
 #endif
@@ -134,7 +134,7 @@
 	"lfence;\n"						\
 	ANNOTATE_RETPOLINE_SAFE					\
 	"call *%[thunk_target]\n",				\
-	X86_FEATURE_RETPOLINE_AMD)
+	X86_FEATURE_RETPOLINE_LFENCE)
 
 # define THUNK_TARGET(addr) [thunk_target] "r" (addr)
 
@@ -164,7 +164,7 @@
 	"lfence;\n"						\
 	ANNOTATE_RETPOLINE_SAFE					\
 	"call *%[thunk_target]\n",				\
-	X86_FEATURE_RETPOLINE_AMD)
+	X86_FEATURE_RETPOLINE_LFENCE)
 
 # define THUNK_TARGET(addr) [thunk_target] "rm" (addr)
 #endif
@@ -176,8 +176,8 @@
 /* The Spectre V2 mitigation variants */
 enum spectre_v2_mitigation {
 	SPECTRE_V2_NONE,
-	SPECTRE_V2_RETPOLINE_GENERIC,
-	SPECTRE_V2_RETPOLINE_AMD,
+	SPECTRE_V2_RETPOLINE,
+	SPECTRE_V2_LFENCE,
 	SPECTRE_V2_IBRS_ENHANCED,
 };
 
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index d4e7a87558348..b0b50240cb05a 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -627,7 +627,7 @@ enum spectre_v2_mitigation_cmd {
 	SPECTRE_V2_CMD_FORCE,
 	SPECTRE_V2_CMD_RETPOLINE,
 	SPECTRE_V2_CMD_RETPOLINE_GENERIC,
-	SPECTRE_V2_CMD_RETPOLINE_AMD,
+	SPECTRE_V2_CMD_RETPOLINE_LFENCE,
 };
 
 enum spectre_v2_user_cmd {
@@ -787,8 +787,8 @@ set_mode:
 
 static const char * const spectre_v2_strings[] = {
 	[SPECTRE_V2_NONE]			= "Vulnerable",
-	[SPECTRE_V2_RETPOLINE_GENERIC]		= "Mitigation: Full generic retpoline",
-	[SPECTRE_V2_RETPOLINE_AMD]		= "Mitigation: Full AMD retpoline",
+	[SPECTRE_V2_RETPOLINE]			= "Mitigation: Retpolines",
+	[SPECTRE_V2_LFENCE]			= "Mitigation: LFENCE",
 	[SPECTRE_V2_IBRS_ENHANCED]		= "Mitigation: Enhanced IBRS",
 };
 
@@ -800,7 +800,8 @@ static const struct {
 	{ "off",		SPECTRE_V2_CMD_NONE,		  false },
 	{ "on",			SPECTRE_V2_CMD_FORCE,		  true  },
 	{ "retpoline",		SPECTRE_V2_CMD_RETPOLINE,	  false },
-	{ "retpoline,amd",	SPECTRE_V2_CMD_RETPOLINE_AMD,	  false },
+	{ "retpoline,amd",	SPECTRE_V2_CMD_RETPOLINE_LFENCE,  false },
+	{ "retpoline,lfence",	SPECTRE_V2_CMD_RETPOLINE_LFENCE,  false },
 	{ "retpoline,generic",	SPECTRE_V2_CMD_RETPOLINE_GENERIC, false },
 	{ "auto",		SPECTRE_V2_CMD_AUTO,		  false },
 };
@@ -838,13 +839,19 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
 	}
 
 	if ((cmd == SPECTRE_V2_CMD_RETPOLINE ||
-	     cmd == SPECTRE_V2_CMD_RETPOLINE_AMD ||
+	     cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE ||
 	     cmd == SPECTRE_V2_CMD_RETPOLINE_GENERIC) &&
 	    !IS_ENABLED(CONFIG_RETPOLINE)) {
 		pr_err("%s selected but not compiled in. Switching to AUTO select\n", mitigation_options[i].option);
 		return SPECTRE_V2_CMD_AUTO;
 	}
 
+	if ((cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE) &&
+	    !boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
+		pr_err("%s selected, but CPU doesn't have a serializing LFENCE. Switching to AUTO select\n", mitigation_options[i].option);
+		return SPECTRE_V2_CMD_AUTO;
+	}
+
 	spec_v2_print_cond(mitigation_options[i].option,
 			   mitigation_options[i].secure);
 	return cmd;
@@ -879,9 +886,9 @@ static void __init spectre_v2_select_mitigation(void)
 		if (IS_ENABLED(CONFIG_RETPOLINE))
 			goto retpoline_auto;
 		break;
-	case SPECTRE_V2_CMD_RETPOLINE_AMD:
+	case SPECTRE_V2_CMD_RETPOLINE_LFENCE:
 		if (IS_ENABLED(CONFIG_RETPOLINE))
-			goto retpoline_amd;
+			goto retpoline_lfence;
 		break;
 	case SPECTRE_V2_CMD_RETPOLINE_GENERIC:
 		if (IS_ENABLED(CONFIG_RETPOLINE))
@@ -898,17 +905,17 @@ static void __init spectre_v2_select_mitigation(void)
 retpoline_auto:
 	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
 	    boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) {
-	retpoline_amd:
+	retpoline_lfence:
 		if (!boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
 			pr_err("Spectre mitigation: LFENCE not serializing, switching to generic retpoline\n");
 			goto retpoline_generic;
 		}
-		mode = SPECTRE_V2_RETPOLINE_AMD;
-		setup_force_cpu_cap(X86_FEATURE_RETPOLINE_AMD);
+		mode = SPECTRE_V2_LFENCE;
+		setup_force_cpu_cap(X86_FEATURE_RETPOLINE_LFENCE);
 		setup_force_cpu_cap(X86_FEATURE_RETPOLINE);
 	} else {
 	retpoline_generic:
-		mode = SPECTRE_V2_RETPOLINE_GENERIC;
+		mode = SPECTRE_V2_RETPOLINE;
 		setup_force_cpu_cap(X86_FEATURE_RETPOLINE);
 	}
 
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index dad350d42ecfb..b58730cc12e83 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -204,7 +204,7 @@
 #define X86_FEATURE_SME			( 7*32+10) /* AMD Secure Memory Encryption */
 #define X86_FEATURE_PTI			( 7*32+11) /* Kernel Page Table Isolation enabled */
 #define X86_FEATURE_RETPOLINE		( 7*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
-#define X86_FEATURE_RETPOLINE_AMD	( 7*32+13) /* "" AMD Retpoline mitigation for Spectre variant 2 */
+#define X86_FEATURE_RETPOLINE_LFENCE	( 7*32+13) /* "" Use LFENCEs for Spectre variant 2 */
 #define X86_FEATURE_INTEL_PPIN		( 7*32+14) /* Intel Processor Inventory Number */
 #define X86_FEATURE_CDP_L2		( 7*32+15) /* Code and Data Prioritization L2 */
 #define X86_FEATURE_MSR_SPEC_CTRL	( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
-- 
GitLab


From a6a119d647ad1f73067d3cffb43104df3f920bcc Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 16 Feb 2022 20:57:01 +0100
Subject: [PATCH 4371/4878] x86/speculation: Add eIBRS + Retpoline options

commit 1e19da8522c81bf46b335f84137165741e0d82b7 upstream.

Thanks to the chaps at VUsec it is now clear that eIBRS is not
sufficient, therefore allow enabling of retpolines along with eIBRS.

Add spectre_v2=eibrs, spectre_v2=eibrs,lfence and
spectre_v2=eibrs,retpoline options to explicitly pick your preferred
means of mitigation.

Since there's new mitigations there's also user visible changes in
/sys/devices/system/cpu/vulnerabilities/spectre_v2 to reflect these
new mitigations.

  [ bp: Massage commit message, trim error messages,
    do more precise eIBRS mode checking. ]

Co-developed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Patrick Colp <patrick.colp@oracle.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/include/asm/nospec-branch.h |   4 +-
 arch/x86/kernel/cpu/bugs.c           | 133 +++++++++++++++++++--------
 2 files changed, 99 insertions(+), 38 deletions(-)

diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index fb6899cb22b05..4d0f5386e637b 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -178,7 +178,9 @@ enum spectre_v2_mitigation {
 	SPECTRE_V2_NONE,
 	SPECTRE_V2_RETPOLINE,
 	SPECTRE_V2_LFENCE,
-	SPECTRE_V2_IBRS_ENHANCED,
+	SPECTRE_V2_EIBRS,
+	SPECTRE_V2_EIBRS_RETPOLINE,
+	SPECTRE_V2_EIBRS_LFENCE,
 };
 
 /* The indirect branch speculation control variants */
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index b0b50240cb05a..3a5c6724ea061 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -628,6 +628,9 @@ enum spectre_v2_mitigation_cmd {
 	SPECTRE_V2_CMD_RETPOLINE,
 	SPECTRE_V2_CMD_RETPOLINE_GENERIC,
 	SPECTRE_V2_CMD_RETPOLINE_LFENCE,
+	SPECTRE_V2_CMD_EIBRS,
+	SPECTRE_V2_CMD_EIBRS_RETPOLINE,
+	SPECTRE_V2_CMD_EIBRS_LFENCE,
 };
 
 enum spectre_v2_user_cmd {
@@ -700,6 +703,13 @@ spectre_v2_parse_user_cmdline(enum spectre_v2_mitigation_cmd v2_cmd)
 	return SPECTRE_V2_USER_CMD_AUTO;
 }
 
+static inline bool spectre_v2_in_eibrs_mode(enum spectre_v2_mitigation mode)
+{
+	return (mode == SPECTRE_V2_EIBRS ||
+		mode == SPECTRE_V2_EIBRS_RETPOLINE ||
+		mode == SPECTRE_V2_EIBRS_LFENCE);
+}
+
 static void __init
 spectre_v2_user_select_mitigation(enum spectre_v2_mitigation_cmd v2_cmd)
 {
@@ -767,7 +777,7 @@ spectre_v2_user_select_mitigation(enum spectre_v2_mitigation_cmd v2_cmd)
 	 */
 	if (!boot_cpu_has(X86_FEATURE_STIBP) ||
 	    !smt_possible ||
-	    spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
+	    spectre_v2_in_eibrs_mode(spectre_v2_enabled))
 		return;
 
 	/*
@@ -789,7 +799,9 @@ static const char * const spectre_v2_strings[] = {
 	[SPECTRE_V2_NONE]			= "Vulnerable",
 	[SPECTRE_V2_RETPOLINE]			= "Mitigation: Retpolines",
 	[SPECTRE_V2_LFENCE]			= "Mitigation: LFENCE",
-	[SPECTRE_V2_IBRS_ENHANCED]		= "Mitigation: Enhanced IBRS",
+	[SPECTRE_V2_EIBRS]			= "Mitigation: Enhanced IBRS",
+	[SPECTRE_V2_EIBRS_LFENCE]		= "Mitigation: Enhanced IBRS + LFENCE",
+	[SPECTRE_V2_EIBRS_RETPOLINE]		= "Mitigation: Enhanced IBRS + Retpolines",
 };
 
 static const struct {
@@ -803,6 +815,9 @@ static const struct {
 	{ "retpoline,amd",	SPECTRE_V2_CMD_RETPOLINE_LFENCE,  false },
 	{ "retpoline,lfence",	SPECTRE_V2_CMD_RETPOLINE_LFENCE,  false },
 	{ "retpoline,generic",	SPECTRE_V2_CMD_RETPOLINE_GENERIC, false },
+	{ "eibrs",		SPECTRE_V2_CMD_EIBRS,		  false },
+	{ "eibrs,lfence",	SPECTRE_V2_CMD_EIBRS_LFENCE,	  false },
+	{ "eibrs,retpoline",	SPECTRE_V2_CMD_EIBRS_RETPOLINE,	  false },
 	{ "auto",		SPECTRE_V2_CMD_AUTO,		  false },
 };
 
@@ -840,15 +855,29 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
 
 	if ((cmd == SPECTRE_V2_CMD_RETPOLINE ||
 	     cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE ||
-	     cmd == SPECTRE_V2_CMD_RETPOLINE_GENERIC) &&
+	     cmd == SPECTRE_V2_CMD_RETPOLINE_GENERIC ||
+	     cmd == SPECTRE_V2_CMD_EIBRS_LFENCE ||
+	     cmd == SPECTRE_V2_CMD_EIBRS_RETPOLINE) &&
 	    !IS_ENABLED(CONFIG_RETPOLINE)) {
-		pr_err("%s selected but not compiled in. Switching to AUTO select\n", mitigation_options[i].option);
+		pr_err("%s selected but not compiled in. Switching to AUTO select\n",
+		       mitigation_options[i].option);
+		return SPECTRE_V2_CMD_AUTO;
+	}
+
+	if ((cmd == SPECTRE_V2_CMD_EIBRS ||
+	     cmd == SPECTRE_V2_CMD_EIBRS_LFENCE ||
+	     cmd == SPECTRE_V2_CMD_EIBRS_RETPOLINE) &&
+	    !boot_cpu_has(X86_FEATURE_IBRS_ENHANCED)) {
+		pr_err("%s selected but CPU doesn't have eIBRS. Switching to AUTO select\n",
+		       mitigation_options[i].option);
 		return SPECTRE_V2_CMD_AUTO;
 	}
 
-	if ((cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE) &&
+	if ((cmd == SPECTRE_V2_CMD_RETPOLINE_LFENCE ||
+	     cmd == SPECTRE_V2_CMD_EIBRS_LFENCE) &&
 	    !boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
-		pr_err("%s selected, but CPU doesn't have a serializing LFENCE. Switching to AUTO select\n", mitigation_options[i].option);
+		pr_err("%s selected, but CPU doesn't have a serializing LFENCE. Switching to AUTO select\n",
+		       mitigation_options[i].option);
 		return SPECTRE_V2_CMD_AUTO;
 	}
 
@@ -857,6 +886,25 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void)
 	return cmd;
 }
 
+static enum spectre_v2_mitigation __init spectre_v2_select_retpoline(void)
+{
+	if (!IS_ENABLED(CONFIG_RETPOLINE)) {
+		pr_err("Kernel not compiled with retpoline; no mitigation available!");
+		return SPECTRE_V2_NONE;
+	}
+
+	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
+	    boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) {
+		if (!boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
+			pr_err("LFENCE not serializing, switching to generic retpoline\n");
+			return SPECTRE_V2_RETPOLINE;
+		}
+		return SPECTRE_V2_LFENCE;
+	}
+
+	return SPECTRE_V2_RETPOLINE;
+}
+
 static void __init spectre_v2_select_mitigation(void)
 {
 	enum spectre_v2_mitigation_cmd cmd = spectre_v2_parse_cmdline();
@@ -877,49 +925,60 @@ static void __init spectre_v2_select_mitigation(void)
 	case SPECTRE_V2_CMD_FORCE:
 	case SPECTRE_V2_CMD_AUTO:
 		if (boot_cpu_has(X86_FEATURE_IBRS_ENHANCED)) {
-			mode = SPECTRE_V2_IBRS_ENHANCED;
-			/* Force it so VMEXIT will restore correctly */
-			x86_spec_ctrl_base |= SPEC_CTRL_IBRS;
-			wrmsrl(MSR_IA32_SPEC_CTRL, x86_spec_ctrl_base);
-			goto specv2_set_mode;
+			mode = SPECTRE_V2_EIBRS;
+			break;
 		}
-		if (IS_ENABLED(CONFIG_RETPOLINE))
-			goto retpoline_auto;
+
+		mode = spectre_v2_select_retpoline();
 		break;
+
 	case SPECTRE_V2_CMD_RETPOLINE_LFENCE:
-		if (IS_ENABLED(CONFIG_RETPOLINE))
-			goto retpoline_lfence;
+		mode = SPECTRE_V2_LFENCE;
 		break;
+
 	case SPECTRE_V2_CMD_RETPOLINE_GENERIC:
-		if (IS_ENABLED(CONFIG_RETPOLINE))
-			goto retpoline_generic;
+		mode = SPECTRE_V2_RETPOLINE;
 		break;
+
 	case SPECTRE_V2_CMD_RETPOLINE:
-		if (IS_ENABLED(CONFIG_RETPOLINE))
-			goto retpoline_auto;
+		mode = spectre_v2_select_retpoline();
+		break;
+
+	case SPECTRE_V2_CMD_EIBRS:
+		mode = SPECTRE_V2_EIBRS;
+		break;
+
+	case SPECTRE_V2_CMD_EIBRS_LFENCE:
+		mode = SPECTRE_V2_EIBRS_LFENCE;
+		break;
+
+	case SPECTRE_V2_CMD_EIBRS_RETPOLINE:
+		mode = SPECTRE_V2_EIBRS_RETPOLINE;
 		break;
 	}
-	pr_err("Spectre mitigation: kernel not compiled with retpoline; no mitigation available!");
-	return;
 
-retpoline_auto:
-	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
-	    boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) {
-	retpoline_lfence:
-		if (!boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
-			pr_err("Spectre mitigation: LFENCE not serializing, switching to generic retpoline\n");
-			goto retpoline_generic;
-		}
-		mode = SPECTRE_V2_LFENCE;
+	if (spectre_v2_in_eibrs_mode(mode)) {
+		/* Force it so VMEXIT will restore correctly */
+		x86_spec_ctrl_base |= SPEC_CTRL_IBRS;
+		wrmsrl(MSR_IA32_SPEC_CTRL, x86_spec_ctrl_base);
+	}
+
+	switch (mode) {
+	case SPECTRE_V2_NONE:
+	case SPECTRE_V2_EIBRS:
+		break;
+
+	case SPECTRE_V2_LFENCE:
+	case SPECTRE_V2_EIBRS_LFENCE:
 		setup_force_cpu_cap(X86_FEATURE_RETPOLINE_LFENCE);
+		fallthrough;
+
+	case SPECTRE_V2_RETPOLINE:
+	case SPECTRE_V2_EIBRS_RETPOLINE:
 		setup_force_cpu_cap(X86_FEATURE_RETPOLINE);
-	} else {
-	retpoline_generic:
-		mode = SPECTRE_V2_RETPOLINE;
-		setup_force_cpu_cap(X86_FEATURE_RETPOLINE);
+		break;
 	}
 
-specv2_set_mode:
 	spectre_v2_enabled = mode;
 	pr_info("%s\n", spectre_v2_strings[mode]);
 
@@ -945,7 +1004,7 @@ specv2_set_mode:
 	 * the CPU supports Enhanced IBRS, kernel might un-intentionally not
 	 * enable IBRS around firmware calls.
 	 */
-	if (boot_cpu_has(X86_FEATURE_IBRS) && mode != SPECTRE_V2_IBRS_ENHANCED) {
+	if (boot_cpu_has(X86_FEATURE_IBRS) && !spectre_v2_in_eibrs_mode(mode)) {
 		setup_force_cpu_cap(X86_FEATURE_USE_IBRS_FW);
 		pr_info("Enabling Restricted Speculation for firmware calls\n");
 	}
@@ -1621,7 +1680,7 @@ static ssize_t tsx_async_abort_show_state(char *buf)
 
 static char *stibp_state(void)
 {
-	if (spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
+	if (spectre_v2_in_eibrs_mode(spectre_v2_enabled))
 		return "";
 
 	switch (spectre_v2_user_stibp) {
-- 
GitLab


From 071e8b69d7808d96f388d7c5ed606e75fd3d518d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 16 Feb 2022 20:57:02 +0100
Subject: [PATCH 4372/4878] Documentation/hw-vuln: Update spectre doc

commit 5ad3eb1132453b9795ce5fd4572b1c18b292cca9 upstream.

Update the doc with the new fun.

  [ bp: Massage commit message. ]

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
[fllinden@amazon.com: backported to 5.10]
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/hw-vuln/spectre.rst | 42 +++++++++++++------
 .../admin-guide/kernel-parameters.txt         |  8 +++-
 2 files changed, 35 insertions(+), 15 deletions(-)

diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index 985181dba0bac..dca6d3baf01d3 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -131,6 +131,19 @@ steer its indirect branch speculations to gadget code, and measure the
 speculative execution's side effects left in level 1 cache to infer the
 victim's data.
 
+Yet another variant 2 attack vector is for the attacker to poison the
+Branch History Buffer (BHB) to speculatively steer an indirect branch
+to a specific Branch Target Buffer (BTB) entry, even if the entry isn't
+associated with the source address of the indirect branch. Specifically,
+the BHB might be shared across privilege levels even in the presence of
+Enhanced IBRS.
+
+Currently the only known real-world BHB attack vector is via
+unprivileged eBPF. Therefore, it's highly recommended to not enable
+unprivileged eBPF, especially when eIBRS is used (without retpolines).
+For a full mitigation against BHB attacks, it's recommended to use
+retpolines (or eIBRS combined with retpolines).
+
 Attack scenarios
 ----------------
 
@@ -364,13 +377,15 @@ The possible values in this file are:
 
   - Kernel status:
 
-  ====================================  =================================
-  'Not affected'                        The processor is not vulnerable
-  'Vulnerable'                          Vulnerable, no mitigation
-  'Mitigation: Full generic retpoline'  Software-focused mitigation
-  'Mitigation: Full AMD retpoline'      AMD-specific software mitigation
-  'Mitigation: Enhanced IBRS'           Hardware-focused mitigation
-  ====================================  =================================
+  ========================================  =================================
+  'Not affected'                            The processor is not vulnerable
+  'Mitigation: None'                        Vulnerable, no mitigation
+  'Mitigation: Retpolines'                  Use Retpoline thunks
+  'Mitigation: LFENCE'                      Use LFENCE instructions
+  'Mitigation: Enhanced IBRS'               Hardware-focused mitigation
+  'Mitigation: Enhanced IBRS + Retpolines'  Hardware-focused + Retpolines
+  'Mitigation: Enhanced IBRS + LFENCE'      Hardware-focused + LFENCE
+  ========================================  =================================
 
   - Firmware status: Show if Indirect Branch Restricted Speculation (IBRS) is
     used to protect against Spectre variant 2 attacks when calling firmware (x86 only).
@@ -584,12 +599,13 @@ kernel command line.
 
 		Specific mitigations can also be selected manually:
 
-		retpoline
-					replace indirect branches
-		retpoline,generic
-					google's original retpoline
-		retpoline,amd
-					AMD-specific minimal thunk
+                retpoline               auto pick between generic,lfence
+                retpoline,generic       Retpolines
+                retpoline,lfence        LFENCE; indirect branch
+                retpoline,amd           alias for retpoline,lfence
+                eibrs                   enhanced IBRS
+                eibrs,retpoline         enhanced IBRS + Retpolines
+                eibrs,lfence            enhanced IBRS + LFENCE
 
 		Not specifying this option is equivalent to
 		spectre_v2=auto.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index d00618967854d..611172f68bb57 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4957,8 +4957,12 @@
 			Specific mitigations can also be selected manually:
 
 			retpoline	  - replace indirect branches
-			retpoline,generic - google's original retpoline
-			retpoline,amd     - AMD-specific minimal thunk
+			retpoline,generic - Retpolines
+			retpoline,lfence  - LFENCE; indirect branch
+			retpoline,amd     - alias for retpoline,lfence
+			eibrs		  - enhanced IBRS
+			eibrs,retpoline   - enhanced IBRS + Retpolines
+			eibrs,lfence      - enhanced IBRS + LFENCE
 
 			Not specifying this option is equivalent to
 			spectre_v2=auto.
-- 
GitLab


From afc2d635b5e18e2b33116d8e121ee149882e33eb Mon Sep 17 00:00:00 2001
From: Josh Poimboeuf <jpoimboe@redhat.com>
Date: Fri, 18 Feb 2022 11:49:08 -0800
Subject: [PATCH 4373/4878] x86/speculation: Include unprivileged eBPF status
 in Spectre v2 mitigation reporting

commit 44a3918c8245ab10c6c9719dd12e7a8d291980d8 upstream.

With unprivileged eBPF enabled, eIBRS (without retpoline) is vulnerable
to Spectre v2 BHB-based attacks.

When both are enabled, print a warning message and report it in the
'spectre_v2' sysfs vulnerabilities file.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
[fllinden@amazon.com: backported to 5.10]
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/bugs.c | 35 +++++++++++++++++++++++++++++------
 include/linux/bpf.h        | 12 ++++++++++++
 kernel/sysctl.c            |  7 +++++++
 3 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 3a5c6724ea061..e97ab5ca93588 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -16,6 +16,7 @@
 #include <linux/prctl.h>
 #include <linux/sched/smt.h>
 #include <linux/pgtable.h>
+#include <linux/bpf.h>
 
 #include <asm/spec-ctrl.h>
 #include <asm/cmdline.h>
@@ -613,6 +614,16 @@ static inline const char *spectre_v2_module_string(void)
 static inline const char *spectre_v2_module_string(void) { return ""; }
 #endif
 
+#define SPECTRE_V2_EIBRS_EBPF_MSG "WARNING: Unprivileged eBPF is enabled with eIBRS on, data leaks possible via Spectre v2 BHB attacks!\n"
+
+#ifdef CONFIG_BPF_SYSCALL
+void unpriv_ebpf_notify(int new_state)
+{
+	if (spectre_v2_enabled == SPECTRE_V2_EIBRS && !new_state)
+		pr_err(SPECTRE_V2_EIBRS_EBPF_MSG);
+}
+#endif
+
 static inline bool match_option(const char *arg, int arglen, const char *opt)
 {
 	int len = strlen(opt);
@@ -957,6 +968,9 @@ static void __init spectre_v2_select_mitigation(void)
 		break;
 	}
 
+	if (mode == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
+		pr_err(SPECTRE_V2_EIBRS_EBPF_MSG);
+
 	if (spectre_v2_in_eibrs_mode(mode)) {
 		/* Force it so VMEXIT will restore correctly */
 		x86_spec_ctrl_base |= SPEC_CTRL_IBRS;
@@ -1710,6 +1724,20 @@ static char *ibpb_state(void)
 	return "";
 }
 
+static ssize_t spectre_v2_show_state(char *buf)
+{
+	if (spectre_v2_enabled == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
+		return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
+
+	return sprintf(buf, "%s%s%s%s%s%s\n",
+		       spectre_v2_strings[spectre_v2_enabled],
+		       ibpb_state(),
+		       boot_cpu_has(X86_FEATURE_USE_IBRS_FW) ? ", IBRS_FW" : "",
+		       stibp_state(),
+		       boot_cpu_has(X86_FEATURE_RSB_CTXSW) ? ", RSB filling" : "",
+		       spectre_v2_module_string());
+}
+
 static ssize_t srbds_show_state(char *buf)
 {
 	return sprintf(buf, "%s\n", srbds_strings[srbds_mitigation]);
@@ -1735,12 +1763,7 @@ static ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr
 		return sprintf(buf, "%s\n", spectre_v1_strings[spectre_v1_mitigation]);
 
 	case X86_BUG_SPECTRE_V2:
-		return sprintf(buf, "%s%s%s%s%s%s\n", spectre_v2_strings[spectre_v2_enabled],
-			       ibpb_state(),
-			       boot_cpu_has(X86_FEATURE_USE_IBRS_FW) ? ", IBRS_FW" : "",
-			       stibp_state(),
-			       boot_cpu_has(X86_FEATURE_RSB_CTXSW) ? ", RSB filling" : "",
-			       spectre_v2_module_string());
+		return spectre_v2_show_state(buf);
 
 	case X86_BUG_SPEC_STORE_BYPASS:
 		return sprintf(buf, "%s\n", ssb_strings[ssb_mode]);
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index e6ddf5a3beaf8..ea3ff499e94a3 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -1485,6 +1485,12 @@ struct bpf_prog *bpf_prog_by_id(u32 id);
 struct bpf_link *bpf_link_by_id(u32 id);
 
 const struct bpf_func_proto *bpf_base_func_proto(enum bpf_func_id func_id);
+
+static inline bool unprivileged_ebpf_enabled(void)
+{
+	return !sysctl_unprivileged_bpf_disabled;
+}
+
 #else /* !CONFIG_BPF_SYSCALL */
 static inline struct bpf_prog *bpf_prog_get(u32 ufd)
 {
@@ -1679,6 +1685,12 @@ bpf_base_func_proto(enum bpf_func_id func_id)
 {
 	return NULL;
 }
+
+static inline bool unprivileged_ebpf_enabled(void)
+{
+	return false;
+}
+
 #endif /* CONFIG_BPF_SYSCALL */
 
 static inline struct bpf_prog *bpf_prog_get_type(u32 ufd,
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 72ceb19574d0c..8832440a4938e 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -234,6 +234,10 @@ static int bpf_stats_handler(struct ctl_table *table, int write,
 	return ret;
 }
 
+void __weak unpriv_ebpf_notify(int new_state)
+{
+}
+
 static int bpf_unpriv_handler(struct ctl_table *table, int write,
 			      void *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -251,6 +255,9 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write,
 			return -EPERM;
 		*(int *)table->data = unpriv_enable;
 	}
+
+	unpriv_ebpf_notify(unpriv_enable);
+
 	return ret;
 }
 #endif /* CONFIG_BPF_SYSCALL && CONFIG_SYSCTL */
-- 
GitLab


From b7f1e73c4ddf2044530091e69114a5fc1a1229d0 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Feb 2022 16:45:54 +0000
Subject: [PATCH 4374/4878] ARM: report Spectre v2 status through sysfs

commit 9dd78194a3722fa6712192cdd4f7032d45112a9a upstream.

As per other architectures, add support for reporting the Spectre
vulnerability status via sysfs CPU.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/spectre.h |  28 +++++++
 arch/arm/kernel/Makefile       |   2 +
 arch/arm/kernel/spectre.c      |  54 +++++++++++++
 arch/arm/mm/Kconfig            |   1 +
 arch/arm/mm/proc-v7-bugs.c     | 141 ++++++++++++++++++++++++---------
 5 files changed, 187 insertions(+), 39 deletions(-)
 create mode 100644 arch/arm/include/asm/spectre.h
 create mode 100644 arch/arm/kernel/spectre.c

diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h
new file mode 100644
index 0000000000000..8a9019e08dba4
--- /dev/null
+++ b/arch/arm/include/asm/spectre.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __ASM_SPECTRE_H
+#define __ASM_SPECTRE_H
+
+enum {
+	SPECTRE_UNAFFECTED,
+	SPECTRE_MITIGATED,
+	SPECTRE_VULNERABLE,
+};
+
+enum {
+	__SPECTRE_V2_METHOD_BPIALL,
+	__SPECTRE_V2_METHOD_ICIALLU,
+	__SPECTRE_V2_METHOD_SMC,
+	__SPECTRE_V2_METHOD_HVC,
+};
+
+enum {
+	SPECTRE_V2_METHOD_BPIALL = BIT(__SPECTRE_V2_METHOD_BPIALL),
+	SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU),
+	SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC),
+	SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC),
+};
+
+void spectre_v2_update_state(unsigned int state, unsigned int methods);
+
+#endif
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 89e5d864e9234..79588b5623532 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -106,4 +106,6 @@ endif
 
 obj-$(CONFIG_HAVE_ARM_SMCCC)	+= smccc-call.o
 
+obj-$(CONFIG_GENERIC_CPU_VULNERABILITIES) += spectre.o
+
 extra-y := $(head-y) vmlinux.lds
diff --git a/arch/arm/kernel/spectre.c b/arch/arm/kernel/spectre.c
new file mode 100644
index 0000000000000..6f6dd1cfd0995
--- /dev/null
+++ b/arch/arm/kernel/spectre.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/cpu.h>
+#include <linux/device.h>
+
+#include <asm/spectre.h>
+
+ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	return sprintf(buf, "Mitigation: __user pointer sanitization\n");
+}
+
+static unsigned int spectre_v2_state;
+static unsigned int spectre_v2_methods;
+
+void spectre_v2_update_state(unsigned int state, unsigned int method)
+{
+	if (state > spectre_v2_state)
+		spectre_v2_state = state;
+	spectre_v2_methods |= method;
+}
+
+ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	const char *method;
+
+	if (spectre_v2_state == SPECTRE_UNAFFECTED)
+		return sprintf(buf, "%s\n", "Not affected");
+
+	if (spectre_v2_state != SPECTRE_MITIGATED)
+		return sprintf(buf, "%s\n", "Vulnerable");
+
+	switch (spectre_v2_methods) {
+	case SPECTRE_V2_METHOD_BPIALL:
+		method = "Branch predictor hardening";
+		break;
+
+	case SPECTRE_V2_METHOD_ICIALLU:
+		method = "I-cache invalidation";
+		break;
+
+	case SPECTRE_V2_METHOD_SMC:
+	case SPECTRE_V2_METHOD_HVC:
+		method = "Firmware call";
+		break;
+
+	default:
+		method = "Multiple mitigations";
+		break;
+	}
+
+	return sprintf(buf, "Mitigation: %s\n", method);
+}
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 423a97dd2f57c..0804bd5e619f1 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -833,6 +833,7 @@ config CPU_BPREDICT_DISABLE
 
 config CPU_SPECTRE
 	bool
+	select GENERIC_CPU_VULNERABILITIES
 
 config HARDEN_BRANCH_PREDICTOR
 	bool "Harden the branch predictor against aliasing attacks" if EXPERT
diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
index 114c05ab4dd91..e438e59bb63e6 100644
--- a/arch/arm/mm/proc-v7-bugs.c
+++ b/arch/arm/mm/proc-v7-bugs.c
@@ -6,8 +6,35 @@
 #include <asm/cp15.h>
 #include <asm/cputype.h>
 #include <asm/proc-fns.h>
+#include <asm/spectre.h>
 #include <asm/system_misc.h>
 
+#ifdef CONFIG_ARM_PSCI
+static int __maybe_unused spectre_v2_get_cpu_fw_mitigation_state(void)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
+			     ARM_SMCCC_ARCH_WORKAROUND_1, &res);
+
+	switch ((int)res.a0) {
+	case SMCCC_RET_SUCCESS:
+		return SPECTRE_MITIGATED;
+
+	case SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED:
+		return SPECTRE_UNAFFECTED;
+
+	default:
+		return SPECTRE_VULNERABLE;
+	}
+}
+#else
+static int __maybe_unused spectre_v2_get_cpu_fw_mitigation_state(void)
+{
+	return SPECTRE_VULNERABLE;
+}
+#endif
+
 #ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
 DEFINE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn);
 
@@ -36,13 +63,60 @@ static void __maybe_unused call_hvc_arch_workaround_1(void)
 	arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL);
 }
 
-static void cpu_v7_spectre_init(void)
+static unsigned int spectre_v2_install_workaround(unsigned int method)
 {
 	const char *spectre_v2_method = NULL;
 	int cpu = smp_processor_id();
 
 	if (per_cpu(harden_branch_predictor_fn, cpu))
-		return;
+		return SPECTRE_MITIGATED;
+
+	switch (method) {
+	case SPECTRE_V2_METHOD_BPIALL:
+		per_cpu(harden_branch_predictor_fn, cpu) =
+			harden_branch_predictor_bpiall;
+		spectre_v2_method = "BPIALL";
+		break;
+
+	case SPECTRE_V2_METHOD_ICIALLU:
+		per_cpu(harden_branch_predictor_fn, cpu) =
+			harden_branch_predictor_iciallu;
+		spectre_v2_method = "ICIALLU";
+		break;
+
+	case SPECTRE_V2_METHOD_HVC:
+		per_cpu(harden_branch_predictor_fn, cpu) =
+			call_hvc_arch_workaround_1;
+		cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
+		spectre_v2_method = "hypervisor";
+		break;
+
+	case SPECTRE_V2_METHOD_SMC:
+		per_cpu(harden_branch_predictor_fn, cpu) =
+			call_smc_arch_workaround_1;
+		cpu_do_switch_mm = cpu_v7_smc_switch_mm;
+		spectre_v2_method = "firmware";
+		break;
+	}
+
+	if (spectre_v2_method)
+		pr_info("CPU%u: Spectre v2: using %s workaround\n",
+			smp_processor_id(), spectre_v2_method);
+
+	return SPECTRE_MITIGATED;
+}
+#else
+static unsigned int spectre_v2_install_workaround(unsigned int method)
+{
+	pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n");
+
+	return SPECTRE_VULNERABLE;
+}
+#endif
+
+static void cpu_v7_spectre_v2_init(void)
+{
+	unsigned int state, method = 0;
 
 	switch (read_cpuid_part()) {
 	case ARM_CPU_PART_CORTEX_A8:
@@ -51,68 +125,57 @@ static void cpu_v7_spectre_init(void)
 	case ARM_CPU_PART_CORTEX_A17:
 	case ARM_CPU_PART_CORTEX_A73:
 	case ARM_CPU_PART_CORTEX_A75:
-		per_cpu(harden_branch_predictor_fn, cpu) =
-			harden_branch_predictor_bpiall;
-		spectre_v2_method = "BPIALL";
+		state = SPECTRE_MITIGATED;
+		method = SPECTRE_V2_METHOD_BPIALL;
 		break;
 
 	case ARM_CPU_PART_CORTEX_A15:
 	case ARM_CPU_PART_BRAHMA_B15:
-		per_cpu(harden_branch_predictor_fn, cpu) =
-			harden_branch_predictor_iciallu;
-		spectre_v2_method = "ICIALLU";
+		state = SPECTRE_MITIGATED;
+		method = SPECTRE_V2_METHOD_ICIALLU;
 		break;
 
-#ifdef CONFIG_ARM_PSCI
 	case ARM_CPU_PART_BRAHMA_B53:
 		/* Requires no workaround */
+		state = SPECTRE_UNAFFECTED;
 		break;
+
 	default:
 		/* Other ARM CPUs require no workaround */
-		if (read_cpuid_implementor() == ARM_CPU_IMP_ARM)
+		if (read_cpuid_implementor() == ARM_CPU_IMP_ARM) {
+			state = SPECTRE_UNAFFECTED;
 			break;
+		}
+
 		fallthrough;
-		/* Cortex A57/A72 require firmware workaround */
-	case ARM_CPU_PART_CORTEX_A57:
-	case ARM_CPU_PART_CORTEX_A72: {
-		struct arm_smccc_res res;
 
-		arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
-				     ARM_SMCCC_ARCH_WORKAROUND_1, &res);
-		if ((int)res.a0 != 0)
-			return;
+	/* Cortex A57/A72 require firmware workaround */
+	case ARM_CPU_PART_CORTEX_A57:
+	case ARM_CPU_PART_CORTEX_A72:
+		state = spectre_v2_get_cpu_fw_mitigation_state();
+		if (state != SPECTRE_MITIGATED)
+			break;
 
 		switch (arm_smccc_1_1_get_conduit()) {
 		case SMCCC_CONDUIT_HVC:
-			per_cpu(harden_branch_predictor_fn, cpu) =
-				call_hvc_arch_workaround_1;
-			cpu_do_switch_mm = cpu_v7_hvc_switch_mm;
-			spectre_v2_method = "hypervisor";
+			method = SPECTRE_V2_METHOD_HVC;
 			break;
 
 		case SMCCC_CONDUIT_SMC:
-			per_cpu(harden_branch_predictor_fn, cpu) =
-				call_smc_arch_workaround_1;
-			cpu_do_switch_mm = cpu_v7_smc_switch_mm;
-			spectre_v2_method = "firmware";
+			method = SPECTRE_V2_METHOD_SMC;
 			break;
 
 		default:
+			state = SPECTRE_VULNERABLE;
 			break;
 		}
 	}
-#endif
-	}
 
-	if (spectre_v2_method)
-		pr_info("CPU%u: Spectre v2: using %s workaround\n",
-			smp_processor_id(), spectre_v2_method);
-}
-#else
-static void cpu_v7_spectre_init(void)
-{
+	if (state == SPECTRE_MITIGATED)
+		state = spectre_v2_install_workaround(method);
+
+	spectre_v2_update_state(state, method);
 }
-#endif
 
 static __maybe_unused bool cpu_v7_check_auxcr_set(bool *warned,
 						  u32 mask, const char *msg)
@@ -142,16 +205,16 @@ static bool check_spectre_auxcr(bool *warned, u32 bit)
 void cpu_v7_ca8_ibe(void)
 {
 	if (check_spectre_auxcr(this_cpu_ptr(&spectre_warned), BIT(6)))
-		cpu_v7_spectre_init();
+		cpu_v7_spectre_v2_init();
 }
 
 void cpu_v7_ca15_ibe(void)
 {
 	if (check_spectre_auxcr(this_cpu_ptr(&spectre_warned), BIT(0)))
-		cpu_v7_spectre_init();
+		cpu_v7_spectre_v2_init();
 }
 
 void cpu_v7_bugs_init(void)
 {
-	cpu_v7_spectre_init();
+	cpu_v7_spectre_v2_init();
 }
-- 
GitLab


From 2fdf67a1d215574c31b1a716f80fa0fdccd401d7 Mon Sep 17 00:00:00 2001
From: Kim Phillips <kim.phillips@amd.com>
Date: Mon, 28 Feb 2022 11:23:15 -0600
Subject: [PATCH 4375/4878] x86/speculation: Use generic retpoline by default
 on AMD

commit 244d00b5dd4755f8df892c86cab35fb2cfd4f14b upstream.

AMD retpoline may be susceptible to speculation. The speculation
execution window for an incorrect indirect branch prediction using
LFENCE/JMP sequence may potentially be large enough to allow
exploitation using Spectre V2.

By default, don't use retpoline,lfence on AMD.  Instead, use the
generic retpoline.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/bugs.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index e97ab5ca93588..935a4812a442b 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -904,15 +904,6 @@ static enum spectre_v2_mitigation __init spectre_v2_select_retpoline(void)
 		return SPECTRE_V2_NONE;
 	}
 
-	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD ||
-	    boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) {
-		if (!boot_cpu_has(X86_FEATURE_LFENCE_RDTSC)) {
-			pr_err("LFENCE not serializing, switching to generic retpoline\n");
-			return SPECTRE_V2_RETPOLINE;
-		}
-		return SPECTRE_V2_LFENCE;
-	}
-
 	return SPECTRE_V2_RETPOLINE;
 }
 
-- 
GitLab


From 46deb224680bb33c8e87440a7b909d16e5a7d7c5 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Feb 2022 19:46:15 +0000
Subject: [PATCH 4376/4878] ARM: early traps initialisation

commit 04e91b7324760a377a725e218b5ee783826d30f5 upstream.

Provide a couple of helpers to copy the vectors and stubs, and also
to flush the copied vectors and stubs.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/traps.c | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 17d5a785df28b..e9ad5f8447817 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -806,10 +806,22 @@ static inline void __init kuser_init(void *vectors)
 }
 #endif
 
+#ifndef CONFIG_CPU_V7M
+static void copy_from_lma(void *vma, void *lma_start, void *lma_end)
+{
+	memcpy(vma, lma_start, lma_end - lma_start);
+}
+
+static void flush_vectors(void *vma, size_t offset, size_t size)
+{
+	unsigned long start = (unsigned long)vma + offset;
+	unsigned long end = start + size;
+
+	flush_icache_range(start, end);
+}
+
 void __init early_trap_init(void *vectors_base)
 {
-#ifndef CONFIG_CPU_V7M
-	unsigned long vectors = (unsigned long)vectors_base;
 	extern char __stubs_start[], __stubs_end[];
 	extern char __vectors_start[], __vectors_end[];
 	unsigned i;
@@ -830,17 +842,20 @@ void __init early_trap_init(void *vectors_base)
 	 * into the vector page, mapped at 0xffff0000, and ensure these
 	 * are visible to the instruction stream.
 	 */
-	memcpy((void *)vectors, __vectors_start, __vectors_end - __vectors_start);
-	memcpy((void *)vectors + 0x1000, __stubs_start, __stubs_end - __stubs_start);
+	copy_from_lma(vectors_base, __vectors_start, __vectors_end);
+	copy_from_lma(vectors_base + 0x1000, __stubs_start, __stubs_end);
 
 	kuser_init(vectors_base);
 
-	flush_icache_range(vectors, vectors + PAGE_SIZE * 2);
+	flush_vectors(vectors_base, 0, PAGE_SIZE * 2);
+}
 #else /* ifndef CONFIG_CPU_V7M */
+void __init early_trap_init(void *vectors_base)
+{
 	/*
 	 * on V7-M there is no need to copy the vector table to a dedicated
 	 * memory area. The address is configurable and so a table in the kernel
 	 * image can be used.
 	 */
-#endif
 }
+#endif
-- 
GitLab


From e335384560d1e106b609e8febd7e0427075a8938 Mon Sep 17 00:00:00 2001
From: Kim Phillips <kim.phillips@amd.com>
Date: Mon, 28 Feb 2022 11:23:16 -0600
Subject: [PATCH 4377/4878] x86/speculation: Update link to AMD speculation
 whitepaper

commit e9b6013a7ce31535b04b02ba99babefe8a8599fa upstream.

Update the link to the "Software Techniques for Managing Speculation
on AMD Processors" whitepaper.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/hw-vuln/spectre.rst | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index dca6d3baf01d3..6bd97cd50d625 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -60,8 +60,8 @@ privileged data touched during the speculative execution.
 Spectre variant 1 attacks take advantage of speculative execution of
 conditional branches, while Spectre variant 2 attacks use speculative
 execution of indirect branches to leak privileged memory.
-See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[7] <spec_ref7>`
-:ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`.
+See :ref:`[1] <spec_ref1>` :ref:`[5] <spec_ref5>` :ref:`[6] <spec_ref6>`
+:ref:`[7] <spec_ref7>` :ref:`[10] <spec_ref10>` :ref:`[11] <spec_ref11>`.
 
 Spectre variant 1 (Bounds Check Bypass)
 ---------------------------------------
@@ -746,7 +746,7 @@ AMD white papers:
 
 .. _spec_ref6:
 
-[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/90343-B_SoftwareTechniquesforManagingSpeculation_WP_7-18Update_FNL.pdf>`_.
+[6] `Software techniques for managing speculation on AMD processors <https://developer.amd.com/wp-content/resources/Managing-Speculation-on-AMD-Processors.pdf>`_.
 
 ARM white papers:
 
-- 
GitLab


From 29d9b56df1e18a8ff2e669b79e511163972a8b65 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Feb 2022 19:49:50 +0000
Subject: [PATCH 4378/4878] ARM: use LOADADDR() to get load address of sections

commit 8d9d651ff2270a632e9dc497b142db31e8911315 upstream.

Use the linker's LOADADDR() macro to get the load address of the
sections, and provide a macro to set the start and end symbols.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/vmlinux.lds.h | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/arm/include/asm/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h
index 4a91428c324db..e02710d17cf93 100644
--- a/arch/arm/include/asm/vmlinux.lds.h
+++ b/arch/arm/include/asm/vmlinux.lds.h
@@ -26,6 +26,11 @@
 #define ARM_MMU_DISCARD(x)	x
 #endif
 
+/* Set start/end symbol names to the LMA for the section */
+#define ARM_LMA(sym, section)						\
+	sym##_start = LOADADDR(section);				\
+	sym##_end = LOADADDR(section) + SIZEOF(section)
+
 #define PROC_INFO							\
 		. = ALIGN(4);						\
 		__proc_info_begin = .;					\
@@ -110,19 +115,19 @@
  * only thing that matters is their relative offsets
  */
 #define ARM_VECTORS							\
-	__vectors_start = .;						\
+	__vectors_lma = .;						\
 	.vectors 0xffff0000 : AT(__vectors_start) {			\
 		*(.vectors)						\
 	}								\
-	. = __vectors_start + SIZEOF(.vectors);				\
-	__vectors_end = .;						\
+	ARM_LMA(__vectors, .vectors);					\
+	. = __vectors_lma + SIZEOF(.vectors);				\
 									\
-	__stubs_start = .;						\
-	.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_start) {		\
+	__stubs_lma = .;						\
+	.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) {		\
 		*(.stubs)						\
 	}								\
-	. = __stubs_start + SIZEOF(.stubs);				\
-	__stubs_end = .;						\
+	ARM_LMA(__stubs, .stubs);					\
+	. = __stubs_lma + SIZEOF(.stubs);				\
 									\
 	PROVIDE(vector_fiq_offset = vector_fiq - ADDR(.vectors));
 
-- 
GitLab


From cc9e3e55bde71b2fac1494f503d5ffc560c7fb8d Mon Sep 17 00:00:00 2001
From: Josh Poimboeuf <jpoimboe@redhat.com>
Date: Fri, 25 Feb 2022 14:31:49 -0800
Subject: [PATCH 4379/4878] x86/speculation: Warn about Spectre v2 LFENCE
 mitigation

commit eafd987d4a82c7bb5aa12f0e3b4f8f3dea93e678 upstream.

With:

  f8a66d608a3e ("x86,bugs: Unconditionally allow spectre_v2=retpoline,amd")

it became possible to enable the LFENCE "retpoline" on Intel. However,
Intel doesn't recommend it, as it has some weaknesses compared to
retpoline.

Now AMD doesn't recommend it either.

It can still be left available as a cmdline option. It's faster than
retpoline but is weaker in certain scenarios -- particularly SMT, but
even non-SMT may be vulnerable in some cases.

So just unconditionally warn if the user requests it on the cmdline.

  [ bp: Massage commit message. ]

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/bugs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 935a4812a442b..bade6afeb1691 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -614,6 +614,7 @@ static inline const char *spectre_v2_module_string(void)
 static inline const char *spectre_v2_module_string(void) { return ""; }
 #endif
 
+#define SPECTRE_V2_LFENCE_MSG "WARNING: LFENCE mitigation is not recommended for this CPU, data leaks possible!\n"
 #define SPECTRE_V2_EIBRS_EBPF_MSG "WARNING: Unprivileged eBPF is enabled with eIBRS on, data leaks possible via Spectre v2 BHB attacks!\n"
 
 #ifdef CONFIG_BPF_SYSCALL
@@ -935,6 +936,7 @@ static void __init spectre_v2_select_mitigation(void)
 		break;
 
 	case SPECTRE_V2_CMD_RETPOLINE_LFENCE:
+		pr_err(SPECTRE_V2_LFENCE_MSG);
 		mode = SPECTRE_V2_LFENCE;
 		break;
 
@@ -1717,6 +1719,9 @@ static char *ibpb_state(void)
 
 static ssize_t spectre_v2_show_state(char *buf)
 {
+	if (spectre_v2_enabled == SPECTRE_V2_LFENCE)
+		return sprintf(buf, "Vulnerable: LFENCE\n");
+
 	if (spectre_v2_enabled == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
 		return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
 
-- 
GitLab


From 3f9c958e3572b19b1cfb9d28eeb15be0a5d80193 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 10 Feb 2022 16:05:45 +0000
Subject: [PATCH 4380/4878] ARM: Spectre-BHB workaround

commit b9baf5c8c5c356757f4f9d8180b5e9d234065bc3 upstream.

Workaround the Spectre BHB issues for Cortex-A15, Cortex-A57,
Cortex-A72, Cortex-A73 and Cortex-A75. We also include Brahma B15 as
well to be safe, which is affected by Spectre V2 in the same ways as
Cortex-A15.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
[changes due to lack of SYSTEM_FREEING_INITMEM - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/assembler.h   | 10 ++++
 arch/arm/include/asm/spectre.h     |  4 ++
 arch/arm/include/asm/vmlinux.lds.h | 18 +++++--
 arch/arm/kernel/entry-armv.S       | 79 +++++++++++++++++++++++++++---
 arch/arm/kernel/entry-common.S     | 24 +++++++++
 arch/arm/kernel/spectre.c          |  4 ++
 arch/arm/kernel/traps.c            | 38 ++++++++++++++
 arch/arm/mm/Kconfig                | 10 ++++
 arch/arm/mm/proc-v7-bugs.c         | 76 ++++++++++++++++++++++++++++
 9 files changed, 254 insertions(+), 9 deletions(-)

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 72627c5fb3b2c..835ed18047c69 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -107,6 +107,16 @@
 	.endm
 #endif
 
+#if __LINUX_ARM_ARCH__ < 7
+	.macro	dsb, args
+	mcr	p15, 0, r0, c7, c10, 4
+	.endm
+
+	.macro	isb, args
+	mcr	p15, 0, r0, c7, r5, 4
+	.endm
+#endif
+
 	.macro asm_trace_hardirqs_off, save=1
 #if defined(CONFIG_TRACE_IRQFLAGS)
 	.if \save
diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h
index 8a9019e08dba4..d1fa5607d3aa3 100644
--- a/arch/arm/include/asm/spectre.h
+++ b/arch/arm/include/asm/spectre.h
@@ -14,6 +14,7 @@ enum {
 	__SPECTRE_V2_METHOD_ICIALLU,
 	__SPECTRE_V2_METHOD_SMC,
 	__SPECTRE_V2_METHOD_HVC,
+	__SPECTRE_V2_METHOD_LOOP8,
 };
 
 enum {
@@ -21,8 +22,11 @@ enum {
 	SPECTRE_V2_METHOD_ICIALLU = BIT(__SPECTRE_V2_METHOD_ICIALLU),
 	SPECTRE_V2_METHOD_SMC = BIT(__SPECTRE_V2_METHOD_SMC),
 	SPECTRE_V2_METHOD_HVC = BIT(__SPECTRE_V2_METHOD_HVC),
+	SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
 };
 
 void spectre_v2_update_state(unsigned int state, unsigned int methods);
 
+int spectre_bhb_update_vectors(unsigned int method);
+
 #endif
diff --git a/arch/arm/include/asm/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h
index e02710d17cf93..0ef21bfae9f62 100644
--- a/arch/arm/include/asm/vmlinux.lds.h
+++ b/arch/arm/include/asm/vmlinux.lds.h
@@ -116,11 +116,23 @@
  */
 #define ARM_VECTORS							\
 	__vectors_lma = .;						\
-	.vectors 0xffff0000 : AT(__vectors_start) {			\
-		*(.vectors)						\
+	OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) {		\
+		.vectors {						\
+			*(.vectors)					\
+		}							\
+		.vectors.bhb.loop8 {					\
+			*(.vectors.bhb.loop8)				\
+		}							\
+		.vectors.bhb.bpiall {					\
+			*(.vectors.bhb.bpiall)				\
+		}							\
 	}								\
 	ARM_LMA(__vectors, .vectors);					\
-	. = __vectors_lma + SIZEOF(.vectors);				\
+	ARM_LMA(__vectors_bhb_loop8, .vectors.bhb.loop8);		\
+	ARM_LMA(__vectors_bhb_bpiall, .vectors.bhb.bpiall);		\
+	. = __vectors_lma + SIZEOF(.vectors) +				\
+		SIZEOF(.vectors.bhb.loop8) +				\
+		SIZEOF(.vectors.bhb.bpiall);				\
 									\
 	__stubs_lma = .;						\
 	.stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) {		\
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 63fbcdc97ded9..3cbd35c82a66c 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -1005,12 +1005,11 @@ vector_\name:
 	sub	lr, lr, #\correction
 	.endif
 
-	@
-	@ Save r0, lr_<exception> (parent PC) and spsr_<exception>
-	@ (parent CPSR)
-	@
+	@ Save r0, lr_<exception> (parent PC)
 	stmia	sp, {r0, lr}		@ save r0, lr
-	mrs	lr, spsr
+
+	@ Save spsr_<exception> (parent CPSR)
+2:	mrs	lr, spsr
 	str	lr, [sp, #8]		@ save spsr
 
 	@
@@ -1031,6 +1030,44 @@ vector_\name:
 	movs	pc, lr			@ branch to handler in SVC mode
 ENDPROC(vector_\name)
 
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+	.subsection 1
+	.align 5
+vector_bhb_loop8_\name:
+	.if \correction
+	sub	lr, lr, #\correction
+	.endif
+
+	@ Save r0, lr_<exception> (parent PC)
+	stmia	sp, {r0, lr}
+
+	@ bhb workaround
+	mov	r0, #8
+1:	b	. + 4
+	subs	r0, r0, #1
+	bne	1b
+	dsb
+	isb
+	b	2b
+ENDPROC(vector_bhb_loop8_\name)
+
+vector_bhb_bpiall_\name:
+	.if \correction
+	sub	lr, lr, #\correction
+	.endif
+
+	@ Save r0, lr_<exception> (parent PC)
+	stmia	sp, {r0, lr}
+
+	@ bhb workaround
+	mcr	p15, 0, r0, c7, c5, 6	@ BPIALL
+	@ isb not needed due to "movs pc, lr" in the vector stub
+	@ which gives a "context synchronisation".
+	b	2b
+ENDPROC(vector_bhb_bpiall_\name)
+	.previous
+#endif
+
 	.align	2
 	@ handler addresses follow this label
 1:
@@ -1039,6 +1076,10 @@ ENDPROC(vector_\name)
 	.section .stubs, "ax", %progbits
 	@ This must be the first word
 	.word	vector_swi
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+	.word	vector_bhb_loop8_swi
+	.word	vector_bhb_bpiall_swi
+#endif
 
 vector_rst:
  ARM(	swi	SYS_ERROR0	)
@@ -1153,8 +1194,10 @@ vector_addrexcptn:
  * FIQ "NMI" handler
  *-----------------------------------------------------------------------------
  * Handle a FIQ using the SVC stack allowing FIQ act like NMI on x86
- * systems.
+ * systems. This must be the last vector stub, so lets place it in its own
+ * subsection.
  */
+	.subsection 2
 	vector_stub	fiq, FIQ_MODE, 4
 
 	.long	__fiq_usr			@  0  (USR_26 / USR_32)
@@ -1187,6 +1230,30 @@ vector_addrexcptn:
 	W(b)	vector_irq
 	W(b)	vector_fiq
 
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+	.section .vectors.bhb.loop8, "ax", %progbits
+.L__vectors_bhb_loop8_start:
+	W(b)	vector_rst
+	W(b)	vector_bhb_loop8_und
+	W(ldr)	pc, .L__vectors_bhb_loop8_start + 0x1004
+	W(b)	vector_bhb_loop8_pabt
+	W(b)	vector_bhb_loop8_dabt
+	W(b)	vector_addrexcptn
+	W(b)	vector_bhb_loop8_irq
+	W(b)	vector_bhb_loop8_fiq
+
+	.section .vectors.bhb.bpiall, "ax", %progbits
+.L__vectors_bhb_bpiall_start:
+	W(b)	vector_rst
+	W(b)	vector_bhb_bpiall_und
+	W(ldr)	pc, .L__vectors_bhb_bpiall_start + 0x1008
+	W(b)	vector_bhb_bpiall_pabt
+	W(b)	vector_bhb_bpiall_dabt
+	W(b)	vector_addrexcptn
+	W(b)	vector_bhb_bpiall_irq
+	W(b)	vector_bhb_bpiall_fiq
+#endif
+
 	.data
 	.align	2
 
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 271cb8a1eba1e..bd619da73c84e 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -162,6 +162,29 @@ ENDPROC(ret_from_fork)
  *-----------------------------------------------------------------------------
  */
 
+	.align	5
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+ENTRY(vector_bhb_loop8_swi)
+	sub	sp, sp, #PT_REGS_SIZE
+	stmia	sp, {r0 - r12}
+	mov	r8, #8
+1:	b	2f
+2:	subs	r8, r8, #1
+	bne	1b
+	dsb
+	isb
+	b	3f
+ENDPROC(vector_bhb_loop8_swi)
+
+	.align	5
+ENTRY(vector_bhb_bpiall_swi)
+	sub	sp, sp, #PT_REGS_SIZE
+	stmia	sp, {r0 - r12}
+	mcr	p15, 0, r8, c7, c5, 6	@ BPIALL
+	isb
+	b	3f
+ENDPROC(vector_bhb_bpiall_swi)
+#endif
 	.align	5
 ENTRY(vector_swi)
 #ifdef CONFIG_CPU_V7M
@@ -169,6 +192,7 @@ ENTRY(vector_swi)
 #else
 	sub	sp, sp, #PT_REGS_SIZE
 	stmia	sp, {r0 - r12}			@ Calling r0 - r12
+3:
  ARM(	add	r8, sp, #S_PC		)
  ARM(	stmdb	r8, {sp, lr}^		)	@ Calling sp, lr
  THUMB(	mov	r8, sp			)
diff --git a/arch/arm/kernel/spectre.c b/arch/arm/kernel/spectre.c
index 6f6dd1cfd0995..ade967f18d069 100644
--- a/arch/arm/kernel/spectre.c
+++ b/arch/arm/kernel/spectre.c
@@ -45,6 +45,10 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 		method = "Firmware call";
 		break;
 
+	case SPECTRE_V2_METHOD_LOOP8:
+		method = "History overwrite";
+		break;
+
 	default:
 		method = "Multiple mitigations";
 		break;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index e9ad5f8447817..2d9e72ad1b0f9 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -30,6 +30,7 @@
 #include <linux/atomic.h>
 #include <asm/cacheflush.h>
 #include <asm/exception.h>
+#include <asm/spectre.h>
 #include <asm/unistd.h>
 #include <asm/traps.h>
 #include <asm/ptrace.h>
@@ -820,6 +821,43 @@ static void flush_vectors(void *vma, size_t offset, size_t size)
 	flush_icache_range(start, end);
 }
 
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+int spectre_bhb_update_vectors(unsigned int method)
+{
+	extern char __vectors_bhb_bpiall_start[], __vectors_bhb_bpiall_end[];
+	extern char __vectors_bhb_loop8_start[], __vectors_bhb_loop8_end[];
+	void *vec_start, *vec_end;
+
+	if (system_state > SYSTEM_SCHEDULING) {
+		pr_err("CPU%u: Spectre BHB workaround too late - system vulnerable\n",
+		       smp_processor_id());
+		return SPECTRE_VULNERABLE;
+	}
+
+	switch (method) {
+	case SPECTRE_V2_METHOD_LOOP8:
+		vec_start = __vectors_bhb_loop8_start;
+		vec_end = __vectors_bhb_loop8_end;
+		break;
+
+	case SPECTRE_V2_METHOD_BPIALL:
+		vec_start = __vectors_bhb_bpiall_start;
+		vec_end = __vectors_bhb_bpiall_end;
+		break;
+
+	default:
+		pr_err("CPU%u: unknown Spectre BHB state %d\n",
+		       smp_processor_id(), method);
+		return SPECTRE_VULNERABLE;
+	}
+
+	copy_from_lma(vectors_page, vec_start, vec_end);
+	flush_vectors(vectors_page, 0, vec_end - vec_start);
+
+	return SPECTRE_MITIGATED;
+}
+#endif
+
 void __init early_trap_init(void *vectors_base)
 {
 	extern char __stubs_start[], __stubs_end[];
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 0804bd5e619f1..c6bf34a33849c 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -854,6 +854,16 @@ config HARDEN_BRANCH_PREDICTOR
 
 	   If unsure, say Y.
 
+config HARDEN_BRANCH_HISTORY
+	bool "Harden Spectre style attacks against branch history" if EXPERT
+	depends on CPU_SPECTRE
+	default y
+	help
+	  Speculation attacks against some high-performance processors can
+	  make use of branch history to influence future speculation. When
+	  taking an exception, a sequence of branches overwrites the branch
+	  history, or branch history is invalidated.
+
 config TLS_REG_EMUL
 	bool
 	select NEED_KUSER_HELPERS
diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
index e438e59bb63e6..c226feab24573 100644
--- a/arch/arm/mm/proc-v7-bugs.c
+++ b/arch/arm/mm/proc-v7-bugs.c
@@ -177,6 +177,81 @@ static void cpu_v7_spectre_v2_init(void)
 	spectre_v2_update_state(state, method);
 }
 
+#ifdef CONFIG_HARDEN_BRANCH_HISTORY
+static int spectre_bhb_method;
+
+static const char *spectre_bhb_method_name(int method)
+{
+	switch (method) {
+	case SPECTRE_V2_METHOD_LOOP8:
+		return "loop";
+
+	case SPECTRE_V2_METHOD_BPIALL:
+		return "BPIALL";
+
+	default:
+		return "unknown";
+	}
+}
+
+static int spectre_bhb_install_workaround(int method)
+{
+	if (spectre_bhb_method != method) {
+		if (spectre_bhb_method) {
+			pr_err("CPU%u: Spectre BHB: method disagreement, system vulnerable\n",
+			       smp_processor_id());
+
+			return SPECTRE_VULNERABLE;
+		}
+
+		if (spectre_bhb_update_vectors(method) == SPECTRE_VULNERABLE)
+			return SPECTRE_VULNERABLE;
+
+		spectre_bhb_method = method;
+	}
+
+	pr_info("CPU%u: Spectre BHB: using %s workaround\n",
+		smp_processor_id(), spectre_bhb_method_name(method));
+
+	return SPECTRE_MITIGATED;
+}
+#else
+static int spectre_bhb_install_workaround(int method)
+{
+	return SPECTRE_VULNERABLE;
+}
+#endif
+
+static void cpu_v7_spectre_bhb_init(void)
+{
+	unsigned int state, method = 0;
+
+	switch (read_cpuid_part()) {
+	case ARM_CPU_PART_CORTEX_A15:
+	case ARM_CPU_PART_BRAHMA_B15:
+	case ARM_CPU_PART_CORTEX_A57:
+	case ARM_CPU_PART_CORTEX_A72:
+		state = SPECTRE_MITIGATED;
+		method = SPECTRE_V2_METHOD_LOOP8;
+		break;
+
+	case ARM_CPU_PART_CORTEX_A73:
+	case ARM_CPU_PART_CORTEX_A75:
+		state = SPECTRE_MITIGATED;
+		method = SPECTRE_V2_METHOD_BPIALL;
+		break;
+
+	default:
+		state = SPECTRE_UNAFFECTED;
+		break;
+	}
+
+	if (state == SPECTRE_MITIGATED)
+		state = spectre_bhb_install_workaround(method);
+
+	spectre_v2_update_state(state, method);
+}
+
 static __maybe_unused bool cpu_v7_check_auxcr_set(bool *warned,
 						  u32 mask, const char *msg)
 {
@@ -217,4 +292,5 @@ void cpu_v7_ca15_ibe(void)
 void cpu_v7_bugs_init(void)
 {
 	cpu_v7_spectre_v2_init();
+	cpu_v7_spectre_bhb_init();
 }
-- 
GitLab


From f3c12fc53e0a1fffbe102a9501c7bb6efdabbe99 Mon Sep 17 00:00:00 2001
From: Hector Martin <marcan@marcan.st>
Date: Thu, 4 Feb 2021 22:56:13 +0900
Subject: [PATCH 4381/4878] arm64: cputype: Add CPU implementor & types for the
 Apple M1 cores

commit 11ecdad722daafcac09c4859dddf31b3d46449bc upstream.

The implementor will be used to condition the FIQ support quirk.

The specific CPU types are not used at the moment, but let's add them
for documentation purposes.

Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/cputype.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index ef5b040dee44d..6231e1f0abe7e 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -59,6 +59,7 @@
 #define ARM_CPU_IMP_NVIDIA		0x4E
 #define ARM_CPU_IMP_FUJITSU		0x46
 #define ARM_CPU_IMP_HISI		0x48
+#define ARM_CPU_IMP_APPLE		0x61
 
 #define ARM_CPU_PART_AEM_V8		0xD0F
 #define ARM_CPU_PART_FOUNDATION		0xD00
@@ -99,6 +100,9 @@
 
 #define HISI_CPU_PART_TSV110		0xD01
 
+#define APPLE_CPU_PART_M1_ICESTORM	0x022
+#define APPLE_CPU_PART_M1_FIRESTORM	0x023
+
 #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
 #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
@@ -127,6 +131,8 @@
 #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
 #define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)
 #define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110)
+#define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM)
+#define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM)
 
 /* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */
 #define MIDR_FUJITSU_ERRATUM_010001		MIDR_FUJITSU_A64FX
-- 
GitLab


From d04937ae94903087279e4a016b7741cdee59d521 Mon Sep 17 00:00:00 2001
From: Josh Poimboeuf <jpoimboe@redhat.com>
Date: Fri, 25 Feb 2022 14:32:28 -0800
Subject: [PATCH 4382/4878] x86/speculation: Warn about eIBRS + LFENCE +
 Unprivileged eBPF + SMT

commit 0de05d056afdb00eca8c7bbb0c79a3438daf700c upstream.

The commit

   44a3918c8245 ("x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting")

added a warning for the "eIBRS + unprivileged eBPF" combination, which
has been shown to be vulnerable against Spectre v2 BHB-based attacks.

However, there's no warning about the "eIBRS + LFENCE retpoline +
unprivileged eBPF" combo. The LFENCE adds more protection by shortening
the speculation window after a mispredicted branch. That makes an attack
significantly more difficult, even with unprivileged eBPF. So at least
for now the logic doesn't warn about that combination.

But if you then add SMT into the mix, the SMT attack angle weakens the
effectiveness of the LFENCE considerably.

So extend the "eIBRS + unprivileged eBPF" warning to also include the
"eIBRS + LFENCE + unprivileged eBPF + SMT" case.

  [ bp: Massage commit message. ]

Suggested-by: Alyssa Milburn <alyssa.milburn@linux.intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/cpu/bugs.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index bade6afeb1691..78b9514a38440 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -616,12 +616,27 @@ static inline const char *spectre_v2_module_string(void) { return ""; }
 
 #define SPECTRE_V2_LFENCE_MSG "WARNING: LFENCE mitigation is not recommended for this CPU, data leaks possible!\n"
 #define SPECTRE_V2_EIBRS_EBPF_MSG "WARNING: Unprivileged eBPF is enabled with eIBRS on, data leaks possible via Spectre v2 BHB attacks!\n"
+#define SPECTRE_V2_EIBRS_LFENCE_EBPF_SMT_MSG "WARNING: Unprivileged eBPF is enabled with eIBRS+LFENCE mitigation and SMT, data leaks possible via Spectre v2 BHB attacks!\n"
 
 #ifdef CONFIG_BPF_SYSCALL
 void unpriv_ebpf_notify(int new_state)
 {
-	if (spectre_v2_enabled == SPECTRE_V2_EIBRS && !new_state)
+	if (new_state)
+		return;
+
+	/* Unprivileged eBPF is enabled */
+
+	switch (spectre_v2_enabled) {
+	case SPECTRE_V2_EIBRS:
 		pr_err(SPECTRE_V2_EIBRS_EBPF_MSG);
+		break;
+	case SPECTRE_V2_EIBRS_LFENCE:
+		if (sched_smt_active())
+			pr_err(SPECTRE_V2_EIBRS_LFENCE_EBPF_SMT_MSG);
+		break;
+	default:
+		break;
+	}
 }
 #endif
 
@@ -1081,6 +1096,10 @@ void cpu_bugs_smt_update(void)
 {
 	mutex_lock(&spec_ctrl_mutex);
 
+	if (sched_smt_active() && unprivileged_ebpf_enabled() &&
+	    spectre_v2_enabled == SPECTRE_V2_EIBRS_LFENCE)
+		pr_warn_once(SPECTRE_V2_EIBRS_LFENCE_EBPF_SMT_MSG);
+
 	switch (spectre_v2_user_stibp) {
 	case SPECTRE_V2_USER_NONE:
 		break;
@@ -1723,7 +1742,11 @@ static ssize_t spectre_v2_show_state(char *buf)
 		return sprintf(buf, "Vulnerable: LFENCE\n");
 
 	if (spectre_v2_enabled == SPECTRE_V2_EIBRS && unprivileged_ebpf_enabled())
-		return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
+		return sprintf(buf, "Vulnerable: eIBRS with unprivileged eBPF\n");
+
+	if (sched_smt_active() && unprivileged_ebpf_enabled() &&
+	    spectre_v2_enabled == SPECTRE_V2_EIBRS_LFENCE)
+		return sprintf(buf, "Vulnerable: eIBRS+LFENCE with unprivileged eBPF and SMT\n");
 
 	return sprintf(buf, "%s%s%s%s%s%s\n",
 		       spectre_v2_strings[spectre_v2_enabled],
-- 
GitLab


From 302754d023a06171113e8fb20c7b2a18ebf9088f Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Mon, 7 Mar 2022 19:28:32 +0000
Subject: [PATCH 4383/4878] ARM: include unprivileged BPF status in Spectre V2
 reporting

commit 25875aa71dfefd1959f07e626c4d285b88b27ac2 upstream.

The mitigations for Spectre-BHB are only applied when an exception
is taken, but when unprivileged BPF is enabled, userspace can
load BPF programs that can be used to exploit the problem.

When unprivileged BPF is enabled, report the vulnerable status via
the spectre_v2 sysfs file.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/spectre.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/kernel/spectre.c b/arch/arm/kernel/spectre.c
index ade967f18d069..e7fea962d632c 100644
--- a/arch/arm/kernel/spectre.c
+++ b/arch/arm/kernel/spectre.c
@@ -1,9 +1,19 @@
 // SPDX-License-Identifier: GPL-2.0-only
+#include <linux/bpf.h>
 #include <linux/cpu.h>
 #include <linux/device.h>
 
 #include <asm/spectre.h>
 
+static bool _unprivileged_ebpf_enabled(void)
+{
+#ifdef CONFIG_BPF_SYSCALL
+	return !sysctl_unprivileged_bpf_disabled;
+#else
+	return false
+#endif
+}
+
 ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
@@ -31,6 +41,9 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 	if (spectre_v2_state != SPECTRE_MITIGATED)
 		return sprintf(buf, "%s\n", "Vulnerable");
 
+	if (_unprivileged_ebpf_enabled())
+		return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
+
 	switch (spectre_v2_methods) {
 	case SPECTRE_V2_METHOD_BPIALL:
 		method = "Branch predictor hardening";
-- 
GitLab


From fc8070a9c5ad3e0ac343532df7d4d2d709b173a8 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 19 Oct 2021 17:31:39 +0100
Subject: [PATCH 4384/4878] arm64: Add Neoverse-N2, Cortex-A710 CPU part
 definition

commit 2d0d656700d67239a57afaf617439143d8dac9be upstream.

Add the CPU Partnumbers for the new Arm designs.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211019163153.3692640-2-suzuki.poulose@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/cputype.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 6231e1f0abe7e..19b8441aa8f26 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -73,6 +73,8 @@
 #define ARM_CPU_PART_CORTEX_A76		0xD0B
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
+#define ARM_CPU_PART_CORTEX_A710	0xD47
+#define ARM_CPU_PART_NEOVERSE_N2	0xD49
 
 #define APM_CPU_PART_POTENZA		0x000
 
@@ -113,6 +115,8 @@
 #define MIDR_CORTEX_A76	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
+#define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
-- 
GitLab


From 86171569312b5870aaedc74b4b28d444c0f72105 Mon Sep 17 00:00:00 2001
From: Anshuman Khandual <anshuman.khandual@arm.com>
Date: Mon, 24 Jan 2022 08:45:37 +0530
Subject: [PATCH 4385/4878] arm64: Add Cortex-X2 CPU part definition

commit 72bb9dcb6c33cfac80282713c2b4f2b254cd24d1 upstream.

Add the CPU Partnumbers for the new Arm designs.

Cc: Will Deacon <will@kernel.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1642994138-25887-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/cputype.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 19b8441aa8f26..657eeb06c7847 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -74,6 +74,7 @@
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
 #define ARM_CPU_PART_CORTEX_A710	0xD47
+#define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
 
 #define APM_CPU_PART_POTENZA		0x000
@@ -116,6 +117,7 @@
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
-- 
GitLab


From b19eaa004f2eeae94a4fcf5f0cadac35cc579a72 Mon Sep 17 00:00:00 2001
From: Anshuman Khandual <anshuman.khandual@arm.com>
Date: Tue, 25 Jan 2022 19:50:31 +0530
Subject: [PATCH 4386/4878] arm64: Add Cortex-A510 CPU part definition

commit 53960faf2b731dd2f9ed6e1334634b8ba6286850 upstream.

Add the CPU Partnumbers for the new Arm designs.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/1643120437-14352-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/cputype.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 657eeb06c7847..999b9149f8568 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -73,6 +73,7 @@
 #define ARM_CPU_PART_CORTEX_A76		0xD0B
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
+#define ARM_CPU_PART_CORTEX_A510	0xD46
 #define ARM_CPU_PART_CORTEX_A710	0xD47
 #define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
@@ -116,6 +117,7 @@
 #define MIDR_CORTEX_A76	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
+#define MIDR_CORTEX_A510 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A510)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
 #define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
-- 
GitLab


From 7ae8127e412361025e7b4a0e6347ca9e8f3ed109 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 17 Oct 2021 13:42:25 +0100
Subject: [PATCH 4387/4878] arm64: Add HWCAP for self-synchronising virtual
 counter

commit fee29f008aa3f2aff01117f28b57b1145d92cb9b upstream.

Since userspace can make use of the CNTVSS_EL0 instruction, expose
it via a HWCAP.

Suggested-by: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211017124225.3018098-18-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/arm64/cpu-feature-registers.rst | 12 ++++++++++--
 Documentation/arm64/elf_hwcaps.rst            |  4 ++++
 arch/arm64/include/asm/hwcap.h                |  1 +
 arch/arm64/include/uapi/asm/hwcap.h           |  1 +
 arch/arm64/kernel/cpufeature.c                |  3 ++-
 arch/arm64/kernel/cpuinfo.c                   |  1 +
 6 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 328e0c454fbd4..9f9b8fd060892 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -235,7 +235,15 @@ infrastructure:
      | DPB                          | [3-0]   |    y    |
      +------------------------------+---------+---------+
 
-  6) ID_AA64MMFR2_EL1 - Memory model feature register 2
+  6) ID_AA64MMFR0_EL1 - Memory model feature register 0
+
+     +------------------------------+---------+---------+
+     | Name                         |  bits   | visible |
+     +------------------------------+---------+---------+
+     | ECV                          | [63-60] |    y    |
+     +------------------------------+---------+---------+
+
+  7) ID_AA64MMFR2_EL1 - Memory model feature register 2
 
      +------------------------------+---------+---------+
      | Name                         |  bits   | visible |
@@ -243,7 +251,7 @@ infrastructure:
      | AT                           | [35-32] |    y    |
      +------------------------------+---------+---------+
 
-  7) ID_AA64ZFR0_EL1 - SVE feature ID register 0
+  8) ID_AA64ZFR0_EL1 - SVE feature ID register 0
 
      +------------------------------+---------+---------+
      | Name                         |  bits   | visible |
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index bbd9cf54db6c7..95e66bd7dd17e 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -245,6 +245,10 @@ HWCAP2_MTE
     Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0010, as described
     by Documentation/arm64/memory-tagging-extension.rst.
 
+HWCAP2_ECV
+
+    Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
+
 4. Unused AT_HWCAP bits
 -----------------------
 
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 9a5498c2c8eea..0922dd55f90d4 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -105,6 +105,7 @@
 #define KERNEL_HWCAP_RNG		__khwcap2_feature(RNG)
 #define KERNEL_HWCAP_BTI		__khwcap2_feature(BTI)
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
+#define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
 
 /*
  * This yields a mask that user programs can use to figure out what
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index b8f41aa234ee1..7b23b16f21ce3 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -75,5 +75,6 @@
 #define HWCAP2_RNG		(1 << 16)
 #define HWCAP2_BTI		(1 << 17)
 #define HWCAP2_MTE		(1 << 18)
+#define HWCAP2_ECV		(1 << 19)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 5001c43ea6c33..87d0c4bb6b5bc 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -259,7 +259,7 @@ static const struct arm64_ftr_bits ftr_id_aa64zfr0[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_ECV_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_ECV_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_FGT_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_EXS_SHIFT, 4, 0),
 	/*
@@ -2252,6 +2252,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 #ifdef CONFIG_ARM64_MTE
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE, CAP_HWCAP, KERNEL_HWCAP_MTE),
 #endif /* CONFIG_ARM64_MTE */
+	HWCAP_CAP(SYS_ID_AA64MMFR0_EL1, ID_AA64MMFR0_ECV_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ECV),
 	{},
 };
 
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 77605aec25fec..14f1f83d5787c 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -94,6 +94,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_RNG]		= "rng",
 	[KERNEL_HWCAP_BTI]		= "bti",
 	[KERNEL_HWCAP_MTE]		= "mte",
+	[KERNEL_HWCAP_ECV]		= "ecv",
 };
 
 #ifdef CONFIG_COMPAT
-- 
GitLab


From dbcfa98539531bff0d7e4d6087741702dfa50f06 Mon Sep 17 00:00:00 2001
From: Joey Gouly <joey.gouly@arm.com>
Date: Fri, 10 Dec 2021 16:54:31 +0000
Subject: [PATCH 4388/4878] arm64: add ID_AA64ISAR2_EL1 sys register

commit 9e45365f1469ef2b934f9d035975dbc9ad352116 upstream.

This is a new ID register, introduced in 8.7.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Reiji Watanabe <reijiw@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-3-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/cpu.h    |  1 +
 arch/arm64/include/asm/sysreg.h | 15 +++++++++++++++
 arch/arm64/kernel/cpufeature.c  |  9 +++++++++
 arch/arm64/kernel/cpuinfo.c     |  1 +
 arch/arm64/kvm/sys_regs.c       |  2 +-
 5 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
index 7faae6ff3ab4d..24ed6643da266 100644
--- a/arch/arm64/include/asm/cpu.h
+++ b/arch/arm64/include/asm/cpu.h
@@ -25,6 +25,7 @@ struct cpuinfo_arm64 {
 	u64		reg_id_aa64dfr1;
 	u64		reg_id_aa64isar0;
 	u64		reg_id_aa64isar1;
+	u64		reg_id_aa64isar2;
 	u64		reg_id_aa64mmfr0;
 	u64		reg_id_aa64mmfr1;
 	u64		reg_id_aa64mmfr2;
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 801861d054268..e2b5a756c9417 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -175,6 +175,7 @@
 
 #define SYS_ID_AA64ISAR0_EL1		sys_reg(3, 0, 0, 6, 0)
 #define SYS_ID_AA64ISAR1_EL1		sys_reg(3, 0, 0, 6, 1)
+#define SYS_ID_AA64ISAR2_EL1		sys_reg(3, 0, 0, 6, 2)
 
 #define SYS_ID_AA64MMFR0_EL1		sys_reg(3, 0, 0, 7, 0)
 #define SYS_ID_AA64MMFR1_EL1		sys_reg(3, 0, 0, 7, 1)
@@ -687,6 +688,20 @@
 #define ID_AA64ISAR1_GPI_NI			0x0
 #define ID_AA64ISAR1_GPI_IMP_DEF		0x1
 
+/* id_aa64isar2 */
+#define ID_AA64ISAR2_RPRES_SHIFT	4
+#define ID_AA64ISAR2_WFXT_SHIFT		0
+
+#define ID_AA64ISAR2_RPRES_8BIT		0x0
+#define ID_AA64ISAR2_RPRES_12BIT	0x1
+/*
+ * Value 0x1 has been removed from the architecture, and is
+ * reserved, but has not yet been removed from the ARM ARM
+ * as of ARM DDI 0487G.b.
+ */
+#define ID_AA64ISAR2_WFXT_NI		0x0
+#define ID_AA64ISAR2_WFXT_SUPPORTED	0x2
+
 /* id_aa64pfr0 */
 #define ID_AA64PFR0_CSV3_SHIFT		60
 #define ID_AA64PFR0_CSV2_SHIFT		56
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 87d0c4bb6b5bc..106cdfd9b9859 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -205,6 +205,10 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 	ARM64_FTR_END,
 };
 
+static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+	ARM64_FTR_END,
+};
+
 static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = {
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV3_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV2_SHIFT, 4, 0),
@@ -596,6 +600,7 @@ static const struct __ftr_reg_entry {
 	/* Op1 = 0, CRn = 0, CRm = 6 */
 	ARM64_FTR_REG(SYS_ID_AA64ISAR0_EL1, ftr_id_aa64isar0),
 	ARM64_FTR_REG(SYS_ID_AA64ISAR1_EL1, ftr_id_aa64isar1),
+	ARM64_FTR_REG(SYS_ID_AA64ISAR2_EL1, ftr_id_aa64isar2),
 
 	/* Op1 = 0, CRn = 0, CRm = 7 */
 	ARM64_FTR_REG(SYS_ID_AA64MMFR0_EL1, ftr_id_aa64mmfr0),
@@ -830,6 +835,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info)
 	init_cpu_ftr_reg(SYS_ID_AA64DFR1_EL1, info->reg_id_aa64dfr1);
 	init_cpu_ftr_reg(SYS_ID_AA64ISAR0_EL1, info->reg_id_aa64isar0);
 	init_cpu_ftr_reg(SYS_ID_AA64ISAR1_EL1, info->reg_id_aa64isar1);
+	init_cpu_ftr_reg(SYS_ID_AA64ISAR2_EL1, info->reg_id_aa64isar2);
 	init_cpu_ftr_reg(SYS_ID_AA64MMFR0_EL1, info->reg_id_aa64mmfr0);
 	init_cpu_ftr_reg(SYS_ID_AA64MMFR1_EL1, info->reg_id_aa64mmfr1);
 	init_cpu_ftr_reg(SYS_ID_AA64MMFR2_EL1, info->reg_id_aa64mmfr2);
@@ -1058,6 +1064,8 @@ void update_cpu_features(int cpu,
 				      info->reg_id_aa64isar0, boot->reg_id_aa64isar0);
 	taint |= check_update_ftr_reg(SYS_ID_AA64ISAR1_EL1, cpu,
 				      info->reg_id_aa64isar1, boot->reg_id_aa64isar1);
+	taint |= check_update_ftr_reg(SYS_ID_AA64ISAR2_EL1, cpu,
+				      info->reg_id_aa64isar2, boot->reg_id_aa64isar2);
 
 	/*
 	 * Differing PARange support is fine as long as all peripherals and
@@ -1157,6 +1165,7 @@ static u64 __read_sysreg_by_encoding(u32 sys_id)
 	read_sysreg_case(SYS_ID_AA64MMFR2_EL1);
 	read_sysreg_case(SYS_ID_AA64ISAR0_EL1);
 	read_sysreg_case(SYS_ID_AA64ISAR1_EL1);
+	read_sysreg_case(SYS_ID_AA64ISAR2_EL1);
 
 	read_sysreg_case(SYS_CNTFRQ_EL0);
 	read_sysreg_case(SYS_CTR_EL0);
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 14f1f83d5787c..ae04e72089045 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -365,6 +365,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
 	info->reg_id_aa64dfr1 = read_cpuid(ID_AA64DFR1_EL1);
 	info->reg_id_aa64isar0 = read_cpuid(ID_AA64ISAR0_EL1);
 	info->reg_id_aa64isar1 = read_cpuid(ID_AA64ISAR1_EL1);
+	info->reg_id_aa64isar2 = read_cpuid(ID_AA64ISAR2_EL1);
 	info->reg_id_aa64mmfr0 = read_cpuid(ID_AA64MMFR0_EL1);
 	info->reg_id_aa64mmfr1 = read_cpuid(ID_AA64MMFR1_EL1);
 	info->reg_id_aa64mmfr2 = read_cpuid(ID_AA64MMFR2_EL1);
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 568f11e23830c..835fa036b2d54 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1517,7 +1517,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	/* CRm=6 */
 	ID_SANITISED(ID_AA64ISAR0_EL1),
 	ID_SANITISED(ID_AA64ISAR1_EL1),
-	ID_UNALLOCATED(6,2),
+	ID_SANITISED(ID_AA64ISAR2_EL1),
 	ID_UNALLOCATED(6,3),
 	ID_UNALLOCATED(6,4),
 	ID_UNALLOCATED(6,5),
-- 
GitLab


From 162aa002ec1a78e91cf2f0b8e7450e2770b2941f Mon Sep 17 00:00:00 2001
From: Joey Gouly <joey.gouly@arm.com>
Date: Fri, 10 Dec 2021 16:54:30 +0000
Subject: [PATCH 4389/4878] arm64: cpufeature: add HWCAP for FEAT_AFP

commit 5c13f042e73200b50573ace63e1a6b94e2917616 upstream.

Add a new HWCAP to detect the Alternate Floating-point Behaviour
feature (FEAT_AFP), introduced in Armv8.7.

Also expose this to userspace in the ID_AA64MMFR1_EL1 feature register.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-2-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/arm64/cpu-feature-registers.rst | 9 +++++++++
 Documentation/arm64/elf_hwcaps.rst            | 4 ++++
 arch/arm64/include/asm/hwcap.h                | 1 +
 arch/arm64/include/asm/sysreg.h               | 1 +
 arch/arm64/include/uapi/asm/hwcap.h           | 1 +
 arch/arm64/kernel/cpufeature.c                | 2 ++
 arch/arm64/kernel/cpuinfo.c                   | 1 +
 7 files changed, 19 insertions(+)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 9f9b8fd060892..1b19d20c2dbd6 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -275,6 +275,15 @@ infrastructure:
      | SVEVer                       | [3-0]   |    y    |
      +------------------------------+---------+---------+
 
+  8) ID_AA64MMFR1_EL1 - Memory model feature register 1
+
+     +------------------------------+---------+---------+
+     | Name                         |  bits   | visible |
+     +------------------------------+---------+---------+
+     | AFP                          | [47-44] |    y    |
+     +------------------------------+---------+---------+
+
+
 Appendix I: Example
 -------------------
 
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 95e66bd7dd17e..77b6da64cfad0 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -249,6 +249,10 @@ HWCAP2_ECV
 
     Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
 
+HWCAP2_AFP
+
+    Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001.
+
 4. Unused AT_HWCAP bits
 -----------------------
 
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 0922dd55f90d4..f20fbec36669b 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -106,6 +106,7 @@
 #define KERNEL_HWCAP_BTI		__khwcap2_feature(BTI)
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
 #define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
+#define KERNEL_HWCAP_AFP		__khwcap2_feature(AFP)
 
 /*
  * This yields a mask that user programs can use to figure out what
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index e2b5a756c9417..df340a4bb0db2 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -801,6 +801,7 @@
 #endif
 
 /* id_aa64mmfr1 */
+#define ID_AA64MMFR1_AFP_SHIFT		44
 #define ID_AA64MMFR1_ETS_SHIFT		36
 #define ID_AA64MMFR1_TWED_SHIFT		32
 #define ID_AA64MMFR1_XNX_SHIFT		28
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 7b23b16f21ce3..180da7396549c 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -76,5 +76,6 @@
 #define HWCAP2_BTI		(1 << 17)
 #define HWCAP2_MTE		(1 << 18)
 #define HWCAP2_ECV		(1 << 19)
+#define HWCAP2_AFP		(1 << 20)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 106cdfd9b9859..2ac37361a5a3c 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -309,6 +309,7 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64mmfr1[] = {
+	ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_AFP_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_ETS_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_TWED_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_XNX_SHIFT, 4, 0),
@@ -2262,6 +2263,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE, CAP_HWCAP, KERNEL_HWCAP_MTE),
 #endif /* CONFIG_ARM64_MTE */
 	HWCAP_CAP(SYS_ID_AA64MMFR0_EL1, ID_AA64MMFR0_ECV_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ECV),
+	HWCAP_CAP(SYS_ID_AA64MMFR1_EL1, ID_AA64MMFR1_AFP_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_AFP),
 	{},
 };
 
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index ae04e72089045..4d2f7e1fbce57 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -95,6 +95,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_BTI]		= "bti",
 	[KERNEL_HWCAP_MTE]		= "mte",
 	[KERNEL_HWCAP_ECV]		= "ecv",
+	[KERNEL_HWCAP_AFP]		= "afp",
 };
 
 #ifdef CONFIG_COMPAT
-- 
GitLab


From 97d8bdf33182494b7cb327ed555313d17d80c639 Mon Sep 17 00:00:00 2001
From: Joey Gouly <joey.gouly@arm.com>
Date: Fri, 10 Dec 2021 16:54:32 +0000
Subject: [PATCH 4390/4878] arm64: cpufeature: add HWCAP for FEAT_RPRES

commit 1175011a7d0030d49dc9c10bde36f08f26d0a8ee upstream.

Add a new HWCAP to detect the Increased precision of Reciprocal Estimate
and Reciprocal Square Root Estimate feature (FEAT_RPRES), introduced in Armv8.7.

Also expose this to userspace in the ID_AA64ISAR2_EL1 feature register.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-4-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/arm64/cpu-feature-registers.rst | 8 ++++++++
 Documentation/arm64/elf_hwcaps.rst            | 4 ++++
 arch/arm64/include/asm/hwcap.h                | 1 +
 arch/arm64/include/uapi/asm/hwcap.h           | 1 +
 arch/arm64/kernel/cpufeature.c                | 2 ++
 arch/arm64/kernel/cpuinfo.c                   | 1 +
 6 files changed, 17 insertions(+)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 1b19d20c2dbd6..749ae970c3195 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -283,6 +283,14 @@ infrastructure:
      | AFP                          | [47-44] |    y    |
      +------------------------------+---------+---------+
 
+  9) ID_AA64ISAR2_EL1 - Instruction set attribute register 2
+
+     +------------------------------+---------+---------+
+     | Name                         |  bits   | visible |
+     +------------------------------+---------+---------+
+     | RPRES                        | [7-4]   |    y    |
+     +------------------------------+---------+---------+
+
 
 Appendix I: Example
 -------------------
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 77b6da64cfad0..e88d245d426da 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -253,6 +253,10 @@ HWCAP2_AFP
 
     Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001.
 
+HWCAP2_RPRES
+
+    Functionality implied by ID_AA64ISAR2_EL1.RPRES == 0b0001.
+
 4. Unused AT_HWCAP bits
 -----------------------
 
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index f20fbec36669b..6422147ea612f 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -107,6 +107,7 @@
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
 #define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
 #define KERNEL_HWCAP_AFP		__khwcap2_feature(AFP)
+#define KERNEL_HWCAP_RPRES		__khwcap2_feature(RPRES)
 
 /*
  * This yields a mask that user programs can use to figure out what
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 180da7396549c..f03731847d9df 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -77,5 +77,6 @@
 #define HWCAP2_MTE		(1 << 18)
 #define HWCAP2_ECV		(1 << 19)
 #define HWCAP2_AFP		(1 << 20)
+#define HWCAP2_RPRES		(1 << 21)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 2ac37361a5a3c..8d48489e0e940 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -206,6 +206,7 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+	ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_RPRES_SHIFT, 4, 0),
 	ARM64_FTR_END,
 };
 
@@ -2264,6 +2265,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 #endif /* CONFIG_ARM64_MTE */
 	HWCAP_CAP(SYS_ID_AA64MMFR0_EL1, ID_AA64MMFR0_ECV_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ECV),
 	HWCAP_CAP(SYS_ID_AA64MMFR1_EL1, ID_AA64MMFR1_AFP_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_AFP),
+	HWCAP_CAP(SYS_ID_AA64ISAR2_EL1, ID_AA64ISAR2_RPRES_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_RPRES),
 	{},
 };
 
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 4d2f7e1fbce57..4c0e72781f31b 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -96,6 +96,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_MTE]		= "mte",
 	[KERNEL_HWCAP_ECV]		= "ecv",
 	[KERNEL_HWCAP_AFP]		= "afp",
+	[KERNEL_HWCAP_RPRES]		= "rpres",
 };
 
 #ifdef CONFIG_COMPAT
-- 
GitLab


From dc5b630c0d532140e194997d350f587dbcc78bfb Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 17 Nov 2021 15:15:26 +0000
Subject: [PATCH 4391/4878] arm64: entry.S: Add ventry overflow sanity checks

commit 4330e2c5c04c27bebf89d34e0bc14e6943413067 upstream.

Subsequent patches add even more code to the ventry slots.
Ensure kernels that overflow a ventry slot don't get built.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index fe83d6d67ec3d..53079b665cc3a 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -62,6 +62,7 @@
 
 	.macro kernel_ventry, el, label, regsize = 64
 	.align 7
+.Lventry_start\@:
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	.if	\el == 0
 alternative_if ARM64_UNMAP_KERNEL_AT_EL0
@@ -120,6 +121,7 @@ alternative_else_nop_endif
 	mrs	x0, tpidrro_el0
 #endif
 	b	el\()\el\()_\label
+.org .Lventry_start\@ + 128	// Did we overflow the ventry slot?
 	.endm
 
 	.macro tramp_alias, dst, sym
@@ -832,6 +834,7 @@ alternative_else_nop_endif
 	add	x30, x30, #(1b - tramp_vectors)
 	isb
 	ret
+.org 1b + 128	// Did we overflow the ventry slot?
 	.endm
 
 	.macro tramp_exit, regsize = 64
-- 
GitLab


From 7048a21086fb16ec67287a25b62e88b0cd17c8c3 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 16 Nov 2021 15:00:51 +0000
Subject: [PATCH 4392/4878] arm64: spectre: Rename
 spectre_v4_patch_fw_mitigation_conduit

commit 1b33d4860deaecf1d8eec3061b7e7ed7ab0bae8d upstream.

The spectre-v4 sequence includes an SMC from the assembly entry code.
spectre_v4_patch_fw_mitigation_conduit is the patching callback that
generates an HVC or SMC depending on the SMCCC conduit type.

As this isn't specific to spectre-v4, rename it
smccc_patch_fw_mitigation_conduit so it can be re-used.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S       | 2 +-
 arch/arm64/kernel/proton-pack.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 53079b665cc3a..c60edde836f59 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -143,7 +143,7 @@ alternative_cb_end
 	tbnz	\tmp2, #TIF_SSBD, .L__asm_ssbd_skip\@
 	mov	w0, #ARM_SMCCC_ARCH_WORKAROUND_2
 	mov	w1, #\state
-alternative_cb	spectre_v4_patch_fw_mitigation_conduit
+alternative_cb	smccc_patch_fw_mitigation_conduit
 	nop					// Patched to SMC/HVC #0
 alternative_cb_end
 .L__asm_ssbd_skip\@:
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index f6e4e3737405d..64f28831b38e8 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -571,9 +571,9 @@ void __init spectre_v4_patch_fw_mitigation_enable(struct alt_instr *alt,
  * Patch a NOP in the Spectre-v4 mitigation code with an SMC/HVC instruction
  * to call into firmware to adjust the mitigation state.
  */
-void __init spectre_v4_patch_fw_mitigation_conduit(struct alt_instr *alt,
-						   __le32 *origptr,
-						   __le32 *updptr, int nr_inst)
+void __init smccc_patch_fw_mitigation_conduit(struct alt_instr *alt,
+					       __le32 *origptr,
+					       __le32 *updptr, int nr_inst)
 {
 	u32 insn;
 
-- 
GitLab


From 5242d6971e106be115d9dace9c1441f4a2e1cb25 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 15:36:12 +0000
Subject: [PATCH 4393/4878] arm64: entry: Make the trampoline cleanup optional

commit d739da1694a0eaef0358a42b76904b611539b77b upstream.

Subsequent patches will add additional sets of vectors that use
the same tricks as the kpti vectors to reach the full-fat vectors.
The full-fat vectors contain some cleanup for kpti that is patched
in by alternatives when kpti is in use. Once there are additional
vectors, the cleanup will be needed in more cases.

But on big/little systems, the cleanup would be harmful if no
trampoline vector were in use. Instead of forcing CPUs that don't
need a trampoline vector to use one, make the trampoline cleanup
optional.

Entry at the top of the vectors will skip the cleanup. The trampoline
vectors can then skip the first instruction, triggering the cleanup
to run.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index c60edde836f59..8b4b4d97b0660 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -65,14 +65,18 @@
 .Lventry_start\@:
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	.if	\el == 0
-alternative_if ARM64_UNMAP_KERNEL_AT_EL0
+	/*
+	 * This must be the first instruction of the EL0 vector entries. It is
+	 * skipped by the trampoline vectors, to trigger the cleanup.
+	 */
+	b	.Lskip_tramp_vectors_cleanup\@
 	.if	\regsize == 64
 	mrs	x30, tpidrro_el0
 	msr	tpidrro_el0, xzr
 	.else
 	mov	x30, xzr
 	.endif
-alternative_else_nop_endif
+.Lskip_tramp_vectors_cleanup\@:
 	.endif
 #endif
 
@@ -831,7 +835,7 @@ alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
 	prfm	plil1strm, [x30, #(1b - tramp_vectors)]
 alternative_else_nop_endif
 	msr	vbar_el1, x30
-	add	x30, x30, #(1b - tramp_vectors)
+	add	x30, x30, #(1b - tramp_vectors + 4)
 	isb
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
-- 
GitLab


From d93b25a6654812e0511b71a6d4a207f6b1ce5dfe Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 23 Nov 2021 18:41:43 +0000
Subject: [PATCH 4394/4878] arm64: entry: Free up another register on kpti's
 tramp_exit path

commit 03aff3a77a58b5b52a77e00537a42090ad57b80b upstream.

Kpti stashes x30 in far_el1 while it uses x30 for all its work.

Making the vectors a per-cpu data structure will require a second
register.

Allow tramp_exit two registers before it unmaps the kernel, by
leaving x30 on the stack, and stashing x29 in far_el1.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 8b4b4d97b0660..233c228921cd9 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -357,14 +357,16 @@ alternative_else_nop_endif
 	ldp	x24, x25, [sp, #16 * 12]
 	ldp	x26, x27, [sp, #16 * 13]
 	ldp	x28, x29, [sp, #16 * 14]
-	ldr	lr, [sp, #S_LR]
-	add	sp, sp, #S_FRAME_SIZE		// restore sp
 
 	.if	\el == 0
-alternative_insn eret, nop, ARM64_UNMAP_KERNEL_AT_EL0
+alternative_if_not ARM64_UNMAP_KERNEL_AT_EL0
+	ldr	lr, [sp, #S_LR]
+	add	sp, sp, #S_FRAME_SIZE		// restore sp
+	eret
+alternative_else_nop_endif
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	bne	4f
-	msr	far_el1, x30
+	msr	far_el1, x29
 	tramp_alias	x30, tramp_exit_native
 	br	x30
 4:
@@ -372,6 +374,9 @@ alternative_insn eret, nop, ARM64_UNMAP_KERNEL_AT_EL0
 	br	x30
 #endif
 	.else
+	ldr	lr, [sp, #S_LR]
+	add	sp, sp, #S_FRAME_SIZE		// restore sp
+
 	/* Ensure any device/NC reads complete */
 	alternative_insn nop, "dmb sy", ARM64_WORKAROUND_1508412
 
@@ -844,10 +849,12 @@ alternative_else_nop_endif
 	.macro tramp_exit, regsize = 64
 	adr	x30, tramp_vectors
 	msr	vbar_el1, x30
-	tramp_unmap_kernel	x30
+	ldr	lr, [sp, #S_LR]
+	tramp_unmap_kernel	x29
 	.if	\regsize == 64
-	mrs	x30, far_el1
+	mrs	x29, far_el1
 	.endif
+	add	sp, sp, #S_FRAME_SIZE		// restore sp
 	eret
 	sb
 	.endm
-- 
GitLab


From bda89602814c69e6f027878209b0b9453133ada2 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 23 Nov 2021 15:43:31 +0000
Subject: [PATCH 4395/4878] arm64: entry: Move the trampoline data page before
 the text page

commit c091fb6ae059cda563b2a4d93fdbc548ef34e1d6 upstream.

The trampoline code has a data page that holds the address of the vectors,
which is unmapped when running in user-space. This ensures that with
CONFIG_RANDOMIZE_BASE, the randomised address of the kernel can't be
discovered until after the kernel has been mapped.

If the trampoline text page is extended to include multiple sets of
vectors, it will be larger than a single page, making it tricky to
find the data page without knowing the size of the trampoline text
pages, which will vary with PAGE_SIZE.

Move the data page to appear before the text page. This allows the
data page to be found without knowing the size of the trampoline text
pages. 'tramp_vectors' is used to refer to the beginning of the
.entry.tramp.text section, do that explicitly.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/fixmap.h | 2 +-
 arch/arm64/kernel/entry.S       | 9 +++++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index 4335800201c97..0aabc0253b18f 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -62,8 +62,8 @@ enum fixed_addresses {
 #endif /* CONFIG_ACPI_APEI_GHES */
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-	FIX_ENTRY_TRAMP_DATA,
 	FIX_ENTRY_TRAMP_TEXT,
+	FIX_ENTRY_TRAMP_DATA,
 #define TRAMP_VALIAS		(__fix_to_virt(FIX_ENTRY_TRAMP_TEXT))
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 	__end_of_permanent_fixed_addresses,
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 233c228921cd9..d859ad3a3b396 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -814,6 +814,11 @@ alternative_else_nop_endif
 	 */
 	.endm
 
+	.macro tramp_data_page	dst
+	adr	\dst, .entry.tramp.text
+	sub	\dst, \dst, PAGE_SIZE
+	.endm
+
 	.macro tramp_ventry, regsize = 64
 	.align	7
 1:
@@ -830,7 +835,7 @@ alternative_else_nop_endif
 2:
 	tramp_map_kernel	x30
 #ifdef CONFIG_RANDOMIZE_BASE
-	adr	x30, tramp_vectors + PAGE_SIZE
+	tramp_data_page		x30
 alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
 	ldr	x30, [x30]
 #else
@@ -984,7 +989,7 @@ SYM_CODE_START(__sdei_asm_entry_trampoline)
 1:	str	x4, [x1, #(SDEI_EVENT_INTREGS + S_ORIG_ADDR_LIMIT)]
 
 #ifdef CONFIG_RANDOMIZE_BASE
-	adr	x4, tramp_vectors + PAGE_SIZE
+	tramp_data_page		x4
 	add	x4, x4, #:lo12:__sdei_asm_trampoline_next_handler
 	ldr	x4, [x4]
 #else
-- 
GitLab


From 5275fb5ea5f573ce1ecd2bf0bcd928abb916b43d Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 11:40:18 +0000
Subject: [PATCH 4396/4878] arm64: entry: Allow tramp_alias to access symbols
 after the 4K boundary

commit 6c5bf79b69f911560fbf82214c0971af6e58e682 upstream.

Systems using kpti enter and exit the kernel through a trampoline mapping
that is always mapped, even when the kernel is not. tramp_valias is a macro
to find the address of a symbol in the trampoline mapping.

Adding extra sets of vectors will expand the size of the entry.tramp.text
section to beyond 4K. tramp_valias will be unable to generate addresses
for symbols beyond 4K as it uses the 12 bit immediate of the add
instruction.

As there are now two registers available when tramp_alias is called,
use the extra register to avoid the 4K limit of the 12 bit immediate.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index d859ad3a3b396..98987880190a1 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -128,9 +128,12 @@
 .org .Lventry_start\@ + 128	// Did we overflow the ventry slot?
 	.endm
 
-	.macro tramp_alias, dst, sym
+	.macro tramp_alias, dst, sym, tmp
 	mov_q	\dst, TRAMP_VALIAS
-	add	\dst, \dst, #(\sym - .entry.tramp.text)
+	adr_l	\tmp, \sym
+	add	\dst, \dst, \tmp
+	adr_l	\tmp, .entry.tramp.text
+	sub	\dst, \dst, \tmp
 	.endm
 
 	/*
@@ -367,10 +370,10 @@ alternative_else_nop_endif
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	bne	4f
 	msr	far_el1, x29
-	tramp_alias	x30, tramp_exit_native
+	tramp_alias	x30, tramp_exit_native, x29
 	br	x30
 4:
-	tramp_alias	x30, tramp_exit_compat
+	tramp_alias	x30, tramp_exit_compat, x29
 	br	x30
 #endif
 	.else
@@ -1131,7 +1134,7 @@ alternative_if_not ARM64_UNMAP_KERNEL_AT_EL0
 alternative_else_nop_endif
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-	tramp_alias	dst=x5, sym=__sdei_asm_exit_trampoline
+	tramp_alias	dst=x5, sym=__sdei_asm_exit_trampoline, tmp=x3
 	br	x5
 #endif
 SYM_CODE_END(__sdei_asm_handler)
-- 
GitLab


From e55025063276fcf7b07e9340c38d70b04aa8a7b9 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 13:40:09 +0000
Subject: [PATCH 4397/4878] arm64: entry: Don't assume tramp_vectors is the
 start of the vectors

commit ed50da7764535f1e24432ded289974f2bf2b0c5a upstream.

The tramp_ventry macro uses tramp_vectors as the address of the vectors
when calculating which ventry in the 'full fat' vectors to branch to.

While there is one set of tramp_vectors, this will be true.
Adding multiple sets of vectors will break this assumption.

Move the generation of the vectors to a macro, and pass the start
of the vectors as an argument to tramp_ventry.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 98987880190a1..44cac269ff3c7 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -822,7 +822,7 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
-	.macro tramp_ventry, regsize = 64
+	.macro tramp_ventry, vector_start, regsize
 	.align	7
 1:
 	.if	\regsize == 64
@@ -845,10 +845,10 @@ alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
 	ldr	x30, =vectors
 #endif
 alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
-	prfm	plil1strm, [x30, #(1b - tramp_vectors)]
+	prfm	plil1strm, [x30, #(1b - \vector_start)]
 alternative_else_nop_endif
 	msr	vbar_el1, x30
-	add	x30, x30, #(1b - tramp_vectors + 4)
+	add	x30, x30, #(1b - \vector_start + 4)
 	isb
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
@@ -867,19 +867,21 @@ alternative_else_nop_endif
 	sb
 	.endm
 
-	.align	11
-SYM_CODE_START_NOALIGN(tramp_vectors)
+	.macro	generate_tramp_vector
+.Lvector_start\@:
 	.space	0x400
 
-	tramp_ventry
-	tramp_ventry
-	tramp_ventry
-	tramp_ventry
+	.rept	4
+	tramp_ventry	.Lvector_start\@, 64
+	.endr
+	.rept	4
+	tramp_ventry	.Lvector_start\@, 32
+	.endr
+	.endm
 
-	tramp_ventry	32
-	tramp_ventry	32
-	tramp_ventry	32
-	tramp_ventry	32
+	.align	11
+SYM_CODE_START_NOALIGN(tramp_vectors)
+	generate_tramp_vector
 SYM_CODE_END(tramp_vectors)
 
 SYM_CODE_START(tramp_exit_native)
-- 
GitLab


From 8c691e5308c531deede16bef4f2d933d5f859ce7 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 14:02:30 +0000
Subject: [PATCH 4398/4878] arm64: entry: Move trampoline macros out of ifdef'd
 section

commit 13d7a08352a83ef2252aeb464a5e08dfc06b5dfd upstream.

The macros for building the kpti trampoline are all behind
CONFIG_UNMAP_KERNEL_AT_EL0, and in a region that outputs to the
.entry.tramp.text section.

Move the macros out so they can be used to generate other kinds of
trampoline. Only the symbols need to be guarded by
CONFIG_UNMAP_KERNEL_AT_EL0 and appear in the .entry.tramp.text section.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 44cac269ff3c7..a3c4531d196dc 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -778,12 +778,6 @@ SYM_CODE_END(ret_to_user)
 
 	.popsection				// .entry.text
 
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-/*
- * Exception vectors trampoline.
- */
-	.pushsection ".entry.tramp.text", "ax"
-
 	// Move from tramp_pg_dir to swapper_pg_dir
 	.macro tramp_map_kernel, tmp
 	mrs	\tmp, ttbr1_el1
@@ -879,6 +873,11 @@ alternative_else_nop_endif
 	.endr
 	.endm
 
+#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
+/*
+ * Exception vectors trampoline.
+ */
+	.pushsection ".entry.tramp.text", "ax"
 	.align	11
 SYM_CODE_START_NOALIGN(tramp_vectors)
 	generate_tramp_vector
-- 
GitLab


From 73ee716a1f6356ca86d16d4ffc97fcfc7961d3ef Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 13:16:23 +0000
Subject: [PATCH 4399/4878] arm64: entry: Make the kpti trampoline's kpti
 sequence optional

commit c47e4d04ba0f1ea17353d85d45f611277507e07a upstream.

Spectre-BHB needs to add sequences to the vectors. Having one global
set of vectors is a problem for big/little systems where the sequence
is costly on cpus that are not vulnerable.

Making the vectors per-cpu in the style of KVM's bh_harden_hyp_vecs
requires the vectors to be generated by macros.

Make the kpti re-mapping of the kernel optional, so the macros can be
used without kpti.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index a3c4531d196dc..02448d647f678 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -816,9 +816,10 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
-	.macro tramp_ventry, vector_start, regsize
+	.macro tramp_ventry, vector_start, regsize, kpti
 	.align	7
 1:
+	.if	\kpti == 1
 	.if	\regsize == 64
 	msr	tpidrro_el0, x30	// Restored in kernel_ventry
 	.endif
@@ -841,9 +842,14 @@ alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
 alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
 	prfm	plil1strm, [x30, #(1b - \vector_start)]
 alternative_else_nop_endif
+
 	msr	vbar_el1, x30
-	add	x30, x30, #(1b - \vector_start + 4)
 	isb
+	.else
+	ldr	x30, =vectors
+	.endif // \kpti == 1
+
+	add	x30, x30, #(1b - \vector_start + 4)
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
 	.endm
@@ -861,15 +867,15 @@ alternative_else_nop_endif
 	sb
 	.endm
 
-	.macro	generate_tramp_vector
+	.macro	generate_tramp_vector,	kpti
 .Lvector_start\@:
 	.space	0x400
 
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 64
+	tramp_ventry	.Lvector_start\@, 64, \kpti
 	.endr
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 32
+	tramp_ventry	.Lvector_start\@, 32, \kpti
 	.endr
 	.endm
 
@@ -880,7 +886,7 @@ alternative_else_nop_endif
 	.pushsection ".entry.tramp.text", "ax"
 	.align	11
 SYM_CODE_START_NOALIGN(tramp_vectors)
-	generate_tramp_vector
+	generate_tramp_vector	kpti=1
 SYM_CODE_END(tramp_vectors)
 
 SYM_CODE_START(tramp_exit_native)
-- 
GitLab


From 26211252c1c104732a0fea6c37645f1b670587f5 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 15:04:32 +0000
Subject: [PATCH 4400/4878] arm64: entry: Allow the trampoline text to occupy
 multiple pages

commit a9c406e6462ff14956d690de7bbe5131a5677dc9 upstream.

Adding a second set of vectors to .entry.tramp.text will make it
larger than a single 4K page.

Allow the trampoline text to occupy up to three pages by adding two
more fixmap slots. Previous changes to tramp_valias allowed it to reach
beyond a single page.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/fixmap.h   |  6 ++++--
 arch/arm64/include/asm/sections.h |  5 +++++
 arch/arm64/kernel/entry.S         |  2 +-
 arch/arm64/kernel/vmlinux.lds.S   |  2 +-
 arch/arm64/mm/mmu.c               | 12 +++++++++---
 5 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index 0aabc0253b18f..daff882883f92 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -62,9 +62,11 @@ enum fixed_addresses {
 #endif /* CONFIG_ACPI_APEI_GHES */
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-	FIX_ENTRY_TRAMP_TEXT,
+	FIX_ENTRY_TRAMP_TEXT3,
+	FIX_ENTRY_TRAMP_TEXT2,
+	FIX_ENTRY_TRAMP_TEXT1,
 	FIX_ENTRY_TRAMP_DATA,
-#define TRAMP_VALIAS		(__fix_to_virt(FIX_ENTRY_TRAMP_TEXT))
+#define TRAMP_VALIAS		(__fix_to_virt(FIX_ENTRY_TRAMP_TEXT1))
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 	__end_of_permanent_fixed_addresses,
 
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
index 3994169985efc..6a45c26da46e3 100644
--- a/arch/arm64/include/asm/sections.h
+++ b/arch/arm64/include/asm/sections.h
@@ -19,4 +19,9 @@ extern char __irqentry_text_start[], __irqentry_text_end[];
 extern char __mmuoff_data_start[], __mmuoff_data_end[];
 extern char __entry_tramp_text_start[], __entry_tramp_text_end[];
 
+static inline size_t entry_tramp_text_size(void)
+{
+	return __entry_tramp_text_end - __entry_tramp_text_start;
+}
+
 #endif /* __ASM_SECTIONS_H */
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 02448d647f678..59ff0359acda3 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -812,7 +812,7 @@ alternative_else_nop_endif
 	.endm
 
 	.macro tramp_data_page	dst
-	adr	\dst, .entry.tramp.text
+	adr_l	\dst, .entry.tramp.text
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 30c1029789427..71f4b5f24d15f 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -299,7 +299,7 @@ ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1))
 	<= SZ_4K, "Hibernate exit text too big or misaligned")
 #endif
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) == PAGE_SIZE,
+ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) <= 3*PAGE_SIZE,
 	"Entry trampoline text too big")
 #endif
 /*
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 2601a514d8c4a..991e599f70577 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -592,6 +592,8 @@ early_param("rodata", parse_rodata);
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 static int __init map_entry_trampoline(void)
 {
+	int i;
+
 	pgprot_t prot = rodata_enabled ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC;
 	phys_addr_t pa_start = __pa_symbol(__entry_tramp_text_start);
 
@@ -600,11 +602,15 @@ static int __init map_entry_trampoline(void)
 
 	/* Map only the text into the trampoline page table */
 	memset(tramp_pg_dir, 0, PGD_SIZE);
-	__create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS, PAGE_SIZE,
-			     prot, __pgd_pgtable_alloc, 0);
+	__create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS,
+			     entry_tramp_text_size(), prot,
+			     __pgd_pgtable_alloc, NO_BLOCK_MAPPINGS);
 
 	/* Map both the text and data into the kernel page table */
-	__set_fixmap(FIX_ENTRY_TRAMP_TEXT, pa_start, prot);
+	for (i = 0; i < DIV_ROUND_UP(entry_tramp_text_size(), PAGE_SIZE); i++)
+		__set_fixmap(FIX_ENTRY_TRAMP_TEXT1 - i,
+			     pa_start + i * PAGE_SIZE, prot);
+
 	if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) {
 		extern char __entry_tramp_data_start[];
 
-- 
GitLab


From 49379552969acee3237387cc258848437e127d98 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 15:03:15 +0000
Subject: [PATCH 4401/4878] arm64: entry: Add non-kpti __bp_harden_el1_vectors
 for mitigations

commit aff65393fa1401e034656e349abd655cfe272de0 upstream.

kpti is an optional feature, for systems not using kpti a set of
vectors for the spectre-bhb mitigations is needed.

Add another set of vectors, __bp_harden_el1_vectors, that will be
used if a mitigation is needed and kpti is not in use.

The EL1 ventries are repeated verbatim as there is no additional
work needed for entry from EL1.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 59ff0359acda3..4d0c52f08a2d9 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -819,10 +819,11 @@ alternative_else_nop_endif
 	.macro tramp_ventry, vector_start, regsize, kpti
 	.align	7
 1:
-	.if	\kpti == 1
 	.if	\regsize == 64
 	msr	tpidrro_el0, x30	// Restored in kernel_ventry
 	.endif
+
+	.if	\kpti == 1
 	/*
 	 * Defend against branch aliasing attacks by pushing a dummy
 	 * entry onto the return stack and using a RET instruction to
@@ -909,6 +910,38 @@ SYM_DATA_END(__entry_tramp_data_start)
 #endif /* CONFIG_RANDOMIZE_BASE */
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 
+/*
+ * Exception vectors for spectre mitigations on entry from EL1 when
+ * kpti is not in use.
+ */
+	.macro generate_el1_vector
+.Lvector_start\@:
+	kernel_ventry	1, sync_invalid			// Synchronous EL1t
+	kernel_ventry	1, irq_invalid			// IRQ EL1t
+	kernel_ventry	1, fiq_invalid			// FIQ EL1t
+	kernel_ventry	1, error_invalid		// Error EL1t
+
+	kernel_ventry	1, sync				// Synchronous EL1h
+	kernel_ventry	1, irq				// IRQ EL1h
+	kernel_ventry	1, fiq_invalid			// FIQ EL1h
+	kernel_ventry	1, error			// Error EL1h
+
+	.rept	4
+	tramp_ventry	.Lvector_start\@, 64, kpti=0
+	.endr
+	.rept 4
+	tramp_ventry	.Lvector_start\@, 32, kpti=0
+	.endr
+	.endm
+
+	.pushsection ".entry.text", "ax"
+	.align	11
+SYM_CODE_START(__bp_harden_el1_vectors)
+	generate_el1_vector
+SYM_CODE_END(__bp_harden_el1_vectors)
+	.popsection
+
+
 /*
  * Register switch for AArch64. The callee-saved registers need to be saved
  * and restored. On entry:
-- 
GitLab


From 3f21b7e355237aa2f8196ad44c2b7456a739518d Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 13:59:46 +0000
Subject: [PATCH 4402/4878] arm64: entry: Add vectors that have the bhb
 mitigation sequences

commit ba2689234be92024e5635d30fe744f4853ad97db upstream.

Some CPUs affected by Spectre-BHB need a sequence of branches, or a
firmware call to be run before any indirect branch. This needs to go
in the vectors. No CPU needs both.

While this can be patched in, it would run on all CPUs as there is a
single set of vectors. If only one part of a big/little combination is
affected, the unaffected CPUs have to run the mitigation too.

Create extra vectors that include the sequence. Subsequent patches will
allow affected CPUs to select this set of vectors. Later patches will
modify the loop count to match what the CPU requires.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/assembler.h | 24 ++++++++++++++
 arch/arm64/include/asm/vectors.h   | 34 +++++++++++++++++++
 arch/arm64/kernel/entry.S          | 53 +++++++++++++++++++++++++-----
 include/linux/arm-smccc.h          |  5 +++
 4 files changed, 107 insertions(+), 9 deletions(-)
 create mode 100644 arch/arm64/include/asm/vectors.h

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index ddbe6bf00e336..c5ab2f2e4b628 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -795,4 +795,28 @@ USER(\label, ic	ivau, \tmp2)			// invalidate I line PoU
 
 #endif /* GNU_PROPERTY_AARCH64_FEATURE_1_DEFAULT */
 
+	.macro __mitigate_spectre_bhb_loop      tmp
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	mov	\tmp, #32
+.Lspectre_bhb_loop\@:
+	b	. + 4
+	subs	\tmp, \tmp, #1
+	b.ne	.Lspectre_bhb_loop\@
+	sb
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	.endm
+
+	/* Save/restores x0-x3 to the stack */
+	.macro __mitigate_spectre_bhb_fw
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	stp	x0, x1, [sp, #-16]!
+	stp	x2, x3, [sp, #-16]!
+	mov	w0, #ARM_SMCCC_ARCH_WORKAROUND_3
+alternative_cb	smccc_patch_fw_mitigation_conduit
+	nop					// Patched to SMC/HVC #0
+alternative_cb_end
+	ldp	x2, x3, [sp], #16
+	ldp	x0, x1, [sp], #16
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	.endm
 #endif	/* __ASM_ASSEMBLER_H */
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
new file mode 100644
index 0000000000000..16ca742603753
--- /dev/null
+++ b/arch/arm64/include/asm/vectors.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022 ARM Ltd.
+ */
+#ifndef __ASM_VECTORS_H
+#define __ASM_VECTORS_H
+
+/*
+ * Note: the order of this enum corresponds to two arrays in entry.S:
+ * tramp_vecs and __bp_harden_el1_vectors. By default the canonical
+ * 'full fat' vectors are used directly.
+ */
+enum arm64_bp_harden_el1_vectors {
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	/*
+	 * Perform the BHB loop mitigation, before branching to the canonical
+	 * vectors.
+	 */
+	EL1_VECTOR_BHB_LOOP,
+
+	/*
+	 * Make the SMC call for firmware mitigation, before branching to the
+	 * canonical vectors.
+	 */
+	EL1_VECTOR_BHB_FW,
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+
+	/*
+	 * Remap the kernel before branching to the canonical vectors.
+	 */
+	EL1_VECTOR_KPTI,
+};
+
+#endif /* __ASM_VECTORS_H */
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 4d0c52f08a2d9..e3dcff2a77a36 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -816,13 +816,26 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
-	.macro tramp_ventry, vector_start, regsize, kpti
+
+#define BHB_MITIGATION_NONE	0
+#define BHB_MITIGATION_LOOP	1
+#define BHB_MITIGATION_FW	2
+
+	.macro tramp_ventry, vector_start, regsize, kpti, bhb
 	.align	7
 1:
 	.if	\regsize == 64
 	msr	tpidrro_el0, x30	// Restored in kernel_ventry
 	.endif
 
+	.if	\bhb == BHB_MITIGATION_LOOP
+	/*
+	 * This sequence must appear before the first indirect branch. i.e. the
+	 * ret out of tramp_ventry. It appears here because x30 is free.
+	 */
+	__mitigate_spectre_bhb_loop	x30
+	.endif // \bhb == BHB_MITIGATION_LOOP
+
 	.if	\kpti == 1
 	/*
 	 * Defend against branch aliasing attacks by pushing a dummy
@@ -850,6 +863,15 @@ alternative_else_nop_endif
 	ldr	x30, =vectors
 	.endif // \kpti == 1
 
+	.if	\bhb == BHB_MITIGATION_FW
+	/*
+	 * The firmware sequence must appear before the first indirect branch.
+	 * i.e. the ret out of tramp_ventry. But it also needs the stack to be
+	 * mapped to save/restore the registers the SMC clobbers.
+	 */
+	__mitigate_spectre_bhb_fw
+	.endif // \bhb == BHB_MITIGATION_FW
+
 	add	x30, x30, #(1b - \vector_start + 4)
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
@@ -857,6 +879,9 @@ alternative_else_nop_endif
 
 	.macro tramp_exit, regsize = 64
 	adr	x30, tramp_vectors
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	add	x30, x30, SZ_4K
+#endif
 	msr	vbar_el1, x30
 	ldr	lr, [sp, #S_LR]
 	tramp_unmap_kernel	x29
@@ -868,26 +893,32 @@ alternative_else_nop_endif
 	sb
 	.endm
 
-	.macro	generate_tramp_vector,	kpti
+	.macro	generate_tramp_vector,	kpti, bhb
 .Lvector_start\@:
 	.space	0x400
 
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 64, \kpti
+	tramp_ventry	.Lvector_start\@, 64, \kpti, \bhb
 	.endr
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 32, \kpti
+	tramp_ventry	.Lvector_start\@, 32, \kpti, \bhb
 	.endr
 	.endm
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 /*
  * Exception vectors trampoline.
+ * The order must match __bp_harden_el1_vectors and the
+ * arm64_bp_harden_el1_vectors enum.
  */
 	.pushsection ".entry.tramp.text", "ax"
 	.align	11
 SYM_CODE_START_NOALIGN(tramp_vectors)
-	generate_tramp_vector	kpti=1
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_LOOP
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_FW
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_NONE
 SYM_CODE_END(tramp_vectors)
 
 SYM_CODE_START(tramp_exit_native)
@@ -914,7 +945,7 @@ SYM_DATA_END(__entry_tramp_data_start)
  * Exception vectors for spectre mitigations on entry from EL1 when
  * kpti is not in use.
  */
-	.macro generate_el1_vector
+	.macro generate_el1_vector, bhb
 .Lvector_start\@:
 	kernel_ventry	1, sync_invalid			// Synchronous EL1t
 	kernel_ventry	1, irq_invalid			// IRQ EL1t
@@ -927,17 +958,21 @@ SYM_DATA_END(__entry_tramp_data_start)
 	kernel_ventry	1, error			// Error EL1h
 
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 64, kpti=0
+	tramp_ventry	.Lvector_start\@, 64, 0, \bhb
 	.endr
 	.rept 4
-	tramp_ventry	.Lvector_start\@, 32, kpti=0
+	tramp_ventry	.Lvector_start\@, 32, 0, \bhb
 	.endr
 	.endm
 
+/* The order must match tramp_vecs and the arm64_bp_harden_el1_vectors enum. */
 	.pushsection ".entry.text", "ax"
 	.align	11
 SYM_CODE_START(__bp_harden_el1_vectors)
-	generate_el1_vector
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	generate_el1_vector	bhb=BHB_MITIGATION_LOOP
+	generate_el1_vector	bhb=BHB_MITIGATION_FW
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 SYM_CODE_END(__bp_harden_el1_vectors)
 	.popsection
 
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index f860645f65128..ff38737475ecb 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -87,6 +87,11 @@
 			   ARM_SMCCC_SMC_32,				\
 			   0, 0x7fff)
 
+#define ARM_SMCCC_ARCH_WORKAROUND_3					\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_32,				\
+			   0, 0x3fff)
+
 #define SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED	1
 
 /* Paravirtualised time calls (defined by ARM DEN0057A) */
-- 
GitLab


From 56cf5326bdf9c20de9a45e4a7a4c0ae16833e561 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 25 Nov 2021 14:25:34 +0000
Subject: [PATCH 4403/4878] arm64: entry: Add macro for reading symbol
 addresses from the trampoline

commit b28a8eebe81c186fdb1a0078263b30576c8e1f42 upstream.

The trampoline code needs to use the address of symbols in the wider
kernel, e.g. vectors. PC-relative addressing wouldn't work as the
trampoline code doesn't run at the address the linker expected.

tramp_ventry uses a literal pool, unless CONFIG_RANDOMIZE_BASE is
set, in which case it uses the data page as a literal pool because
the data page can be unmapped when running in user-space, which is
required for CPUs vulnerable to meltdown.

Pull this logic out as a macro, instead of adding a third copy
of it.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/entry.S | 36 ++++++++++++++++--------------------
 1 file changed, 16 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index e3dcff2a77a36..47502502dc2e6 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -816,6 +816,15 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
+	.macro tramp_data_read_var	dst, var
+#ifdef CONFIG_RANDOMIZE_BASE
+	tramp_data_page		\dst
+	add	\dst, \dst, #:lo12:__entry_tramp_data_\var
+	ldr	\dst, [\dst]
+#else
+	ldr	\dst, =\var
+#endif
+	.endm
 
 #define BHB_MITIGATION_NONE	0
 #define BHB_MITIGATION_LOOP	1
@@ -846,13 +855,8 @@ alternative_else_nop_endif
 	b	.
 2:
 	tramp_map_kernel	x30
-#ifdef CONFIG_RANDOMIZE_BASE
-	tramp_data_page		x30
 alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
-	ldr	x30, [x30]
-#else
-	ldr	x30, =vectors
-#endif
+	tramp_data_read_var	x30, vectors
 alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
 	prfm	plil1strm, [x30, #(1b - \vector_start)]
 alternative_else_nop_endif
@@ -935,7 +939,12 @@ SYM_CODE_END(tramp_exit_compat)
 	.pushsection ".rodata", "a"
 	.align PAGE_SHIFT
 SYM_DATA_START(__entry_tramp_data_start)
+__entry_tramp_data_vectors:
 	.quad	vectors
+#ifdef CONFIG_ARM_SDE_INTERFACE
+__entry_tramp_data___sdei_asm_handler:
+	.quad	__sdei_asm_handler
+#endif /* CONFIG_ARM_SDE_INTERFACE */
 SYM_DATA_END(__entry_tramp_data_start)
 	.popsection				// .rodata
 #endif /* CONFIG_RANDOMIZE_BASE */
@@ -1066,13 +1075,7 @@ SYM_CODE_START(__sdei_asm_entry_trampoline)
 	 */
 1:	str	x4, [x1, #(SDEI_EVENT_INTREGS + S_ORIG_ADDR_LIMIT)]
 
-#ifdef CONFIG_RANDOMIZE_BASE
-	tramp_data_page		x4
-	add	x4, x4, #:lo12:__sdei_asm_trampoline_next_handler
-	ldr	x4, [x4]
-#else
-	ldr	x4, =__sdei_asm_handler
-#endif
+	tramp_data_read_var     x4, __sdei_asm_handler
 	br	x4
 SYM_CODE_END(__sdei_asm_entry_trampoline)
 NOKPROBE(__sdei_asm_entry_trampoline)
@@ -1095,13 +1098,6 @@ SYM_CODE_END(__sdei_asm_exit_trampoline)
 NOKPROBE(__sdei_asm_exit_trampoline)
 	.ltorg
 .popsection		// .entry.tramp.text
-#ifdef CONFIG_RANDOMIZE_BASE
-.pushsection ".rodata", "a"
-SYM_DATA_START(__sdei_asm_trampoline_next_handler)
-	.quad	__sdei_asm_handler
-SYM_DATA_END(__sdei_asm_trampoline_next_handler)
-.popsection		// .rodata
-#endif /* CONFIG_RANDOMIZE_BASE */
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 
 /*
-- 
GitLab


From 1f63326a5211208e2c5868650e47f13a9072afde Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 23 Nov 2021 18:29:25 +0000
Subject: [PATCH 4404/4878] arm64: Add percpu vectors for EL1

commit bd09128d16fac3c34b80bd6a29088ac632e8ce09 upstream.

The Spectre-BHB workaround adds a firmware call to the vectors. This
is needed on some CPUs, but not others. To avoid the unaffected CPU in
a big/little pair from making the firmware call, create per cpu vectors.

The per-cpu vectors only apply when returning from EL0.

Systems using KPTI can use the canonical 'full-fat' vectors directly at
EL1, the trampoline exit code will switch to this_cpu_vector on exit to
EL0. Systems not using KPTI should always use this_cpu_vector.

this_cpu_vector will point at a vector in tramp_vecs or
__bp_harden_el1_vectors, depending on whether KPTI is in use.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/vectors.h | 27 +++++++++++++++++++++++++++
 arch/arm64/kernel/cpufeature.c   | 11 +++++++++++
 arch/arm64/kernel/entry.S        | 12 ++++++------
 arch/arm64/kvm/hyp/vhe/switch.c  |  9 +++++++--
 4 files changed, 51 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
index 16ca742603753..3f76dfd9e0744 100644
--- a/arch/arm64/include/asm/vectors.h
+++ b/arch/arm64/include/asm/vectors.h
@@ -5,6 +5,15 @@
 #ifndef __ASM_VECTORS_H
 #define __ASM_VECTORS_H
 
+#include <linux/bug.h>
+#include <linux/percpu.h>
+
+#include <asm/fixmap.h>
+
+extern char vectors[];
+extern char tramp_vectors[];
+extern char __bp_harden_el1_vectors[];
+
 /*
  * Note: the order of this enum corresponds to two arrays in entry.S:
  * tramp_vecs and __bp_harden_el1_vectors. By default the canonical
@@ -31,4 +40,22 @@ enum arm64_bp_harden_el1_vectors {
 	EL1_VECTOR_KPTI,
 };
 
+/* The vectors to use on return from EL0. e.g. to remap the kernel */
+DECLARE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector);
+
+#ifndef CONFIG_UNMAP_KERNEL_AT_EL0
+#define TRAMP_VALIAS	0
+#endif
+
+static inline const char *
+arm64_get_bp_hardening_vector(enum arm64_bp_harden_el1_vectors slot)
+{
+	if (arm64_kernel_unmapped_at_el0())
+		return (char *)TRAMP_VALIAS + SZ_2K * slot;
+
+	WARN_ON_ONCE(slot == EL1_VECTOR_KPTI);
+
+	return __bp_harden_el1_vectors + SZ_2K * slot;
+}
+
 #endif /* __ASM_VECTORS_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 8d48489e0e940..cad315e125942 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -65,11 +65,13 @@
 #include <linux/bsearch.h>
 #include <linux/cpumask.h>
 #include <linux/crash_dump.h>
+#include <linux/percpu.h>
 #include <linux/sort.h>
 #include <linux/stop_machine.h>
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/cpu.h>
+
 #include <asm/cpu.h>
 #include <asm/cpufeature.h>
 #include <asm/cpu_ops.h>
@@ -79,6 +81,7 @@
 #include <asm/processor.h>
 #include <asm/sysreg.h>
 #include <asm/traps.h>
+#include <asm/vectors.h>
 #include <asm/virt.h>
 
 /* Kernel representation of AT_HWCAP and AT_HWCAP2 */
@@ -104,6 +107,8 @@ DECLARE_BITMAP(boot_capabilities, ARM64_NPATCHABLE);
 bool arm64_use_ng_mappings = false;
 EXPORT_SYMBOL(arm64_use_ng_mappings);
 
+DEFINE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector) = vectors;
+
 /*
  * Flag to indicate if we have computed the system wide
  * capabilities based on the boot time active CPUs. This
@@ -1413,6 +1418,12 @@ kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
 
 	int cpu = smp_processor_id();
 
+	if (__this_cpu_read(this_cpu_vector) == vectors) {
+		const char *v = arm64_get_bp_hardening_vector(EL1_VECTOR_KPTI);
+
+		__this_cpu_write(this_cpu_vector, v);
+	}
+
 	/*
 	 * We don't need to rewrite the page-tables if either we've done
 	 * it already or we have KASLR enabled and therefore have not
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 47502502dc2e6..34aa2440a9520 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -63,7 +63,6 @@
 	.macro kernel_ventry, el, label, regsize = 64
 	.align 7
 .Lventry_start\@:
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	.if	\el == 0
 	/*
 	 * This must be the first instruction of the EL0 vector entries. It is
@@ -78,7 +77,6 @@
 	.endif
 .Lskip_tramp_vectors_cleanup\@:
 	.endif
-#endif
 
 	sub	sp, sp, #S_FRAME_SIZE
 #ifdef CONFIG_VMAP_STACK
@@ -882,10 +880,10 @@ alternative_else_nop_endif
 	.endm
 
 	.macro tramp_exit, regsize = 64
-	adr	x30, tramp_vectors
-#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
-	add	x30, x30, SZ_4K
-#endif
+	tramp_data_read_var	x30, this_cpu_vector
+	this_cpu_offset x29
+	ldr	x30, [x30, x29]
+
 	msr	vbar_el1, x30
 	ldr	lr, [sp, #S_LR]
 	tramp_unmap_kernel	x29
@@ -945,6 +943,8 @@ __entry_tramp_data_vectors:
 __entry_tramp_data___sdei_asm_handler:
 	.quad	__sdei_asm_handler
 #endif /* CONFIG_ARM_SDE_INTERFACE */
+__entry_tramp_data_this_cpu_vector:
+	.quad	this_cpu_vector
 SYM_DATA_END(__entry_tramp_data_start)
 	.popsection				// .rodata
 #endif /* CONFIG_RANDOMIZE_BASE */
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 62546e20b2511..532e687f69366 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -10,6 +10,7 @@
 #include <linux/kvm_host.h>
 #include <linux/types.h>
 #include <linux/jump_label.h>
+#include <linux/percpu.h>
 #include <uapi/linux/psci.h>
 
 #include <kvm/arm_psci.h>
@@ -25,6 +26,7 @@
 #include <asm/debug-monitors.h>
 #include <asm/processor.h>
 #include <asm/thread_info.h>
+#include <asm/vectors.h>
 
 const char __hyp_panic_string[] = "HYP panic:\nPS:%08llx PC:%016llx ESR:%08llx\nFAR:%016llx HPFAR:%016llx PAR:%016llx\nVCPU:%p\n";
 
@@ -70,7 +72,7 @@ NOKPROBE_SYMBOL(__activate_traps);
 
 static void __deactivate_traps(struct kvm_vcpu *vcpu)
 {
-	extern char vectors[];	/* kernel exception vectors */
+	const char *host_vectors = vectors;
 
 	___deactivate_traps(vcpu);
 
@@ -84,7 +86,10 @@ static void __deactivate_traps(struct kvm_vcpu *vcpu)
 	asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_SPECULATIVE_AT));
 
 	write_sysreg(CPACR_EL1_DEFAULT, cpacr_el1);
-	write_sysreg(vectors, vbar_el1);
+
+	if (!arm64_kernel_unmapped_at_el0())
+		host_vectors = __this_cpu_read(this_cpu_vector);
+	write_sysreg(host_vectors, vbar_el1);
 }
 NOKPROBE_SYMBOL(__deactivate_traps);
 
-- 
GitLab


From 13a807a0a080383ceab6c40e53c0228108423e51 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 8 Feb 2022 16:08:13 +0000
Subject: [PATCH 4405/4878] arm64: proton-pack: Report Spectre-BHB
 vulnerabilities as part of Spectre-v2

commit dee435be76f4117410bbd90573a881fd33488f37 upstream.

Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation as part of
a spectre-v2 attack. This is not mitigated by CSV2, meaning CPUs that
previously reported 'Not affected' are now moderately mitigated by CSV2.

Update the value in /sys/devices/system/cpu/vulnerabilities/spectre_v2
to also show the state of the BHB mitigation.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/spectre.h |  2 ++
 arch/arm64/kernel/proton-pack.c  | 36 ++++++++++++++++++++++++++++++--
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/spectre.h b/arch/arm64/include/asm/spectre.h
index fcdfbce302bdf..eb472f7f53b25 100644
--- a/arch/arm64/include/asm/spectre.h
+++ b/arch/arm64/include/asm/spectre.h
@@ -29,4 +29,6 @@ bool has_spectre_v4(const struct arm64_cpu_capabilities *cap, int scope);
 void spectre_v4_enable_mitigation(const struct arm64_cpu_capabilities *__unused);
 void spectre_v4_enable_task_mitigation(struct task_struct *tsk);
 
+enum mitigation_state arm64_get_spectre_bhb_state(void);
+
 #endif	/* __ASM_SPECTRE_H */
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 64f28831b38e8..0ab98d20a2742 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -94,14 +94,39 @@ static bool spectre_v2_mitigations_off(void)
 	return ret;
 }
 
+static const char *get_bhb_affected_string(enum mitigation_state bhb_state)
+{
+	switch (bhb_state) {
+	case SPECTRE_UNAFFECTED:
+		return "";
+	default:
+	case SPECTRE_VULNERABLE:
+		return ", but not BHB";
+	case SPECTRE_MITIGATED:
+		return ", BHB";
+	}
+}
+
 ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
+	enum mitigation_state bhb_state = arm64_get_spectre_bhb_state();
+	const char *bhb_str = get_bhb_affected_string(bhb_state);
+	const char *v2_str = "Branch predictor hardening";
+
 	switch (spectre_v2_state) {
 	case SPECTRE_UNAFFECTED:
-		return sprintf(buf, "Not affected\n");
+		if (bhb_state == SPECTRE_UNAFFECTED)
+			return sprintf(buf, "Not affected\n");
+
+		/*
+		 * Platforms affected by Spectre-BHB can't report
+		 * "Not affected" for Spectre-v2.
+		 */
+		v2_str = "CSV2";
+		fallthrough;
 	case SPECTRE_MITIGATED:
-		return sprintf(buf, "Mitigation: Branch predictor hardening\n");
+		return sprintf(buf, "Mitigation: %s%s\n", v2_str, bhb_str);
 	case SPECTRE_VULNERABLE:
 		fallthrough;
 	default:
@@ -787,3 +812,10 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
 		return -ENODEV;
 	}
 }
+
+static enum mitigation_state spectre_bhb_state;
+
+enum mitigation_state arm64_get_spectre_bhb_state(void)
+{
+	return spectre_bhb_state;
+}
-- 
GitLab


From 192023e6baf7cce7fb76ff3a5c24c55968c774ff Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 16 Nov 2021 15:06:19 +0000
Subject: [PATCH 4406/4878] KVM: arm64: Allow indirect vectors to be used
 without SPECTRE_V3A

commit 5bdf3437603d4af87f9c7f424b0c8aeed2420745 upstream.

CPUs vulnerable to Spectre-BHB either need to make an SMC-CC firmware
call from the vectors, or run a sequence of branches. This gets added
to the hyp vectors. If there is no support for arch-workaround-1 in
firmware, the indirect vector will be used.

kvm_init_vector_slots() only initialises the two indirect slots if
the platform is vulnerable to Spectre-v3a. pKVM's hyp_map_vectors()
only initialises __hyp_bp_vect_base if the platform is vulnerable to
Spectre-v3a.

As there are about to more users of the indirect vectors, ensure
their entries in hyp_spectre_vector_selector[] are always initialised,
and __hyp_bp_vect_base defaults to the regular VA mapping.

The Spectre-v3a check is moved to a helper
kvm_system_needs_idmapped_vectors(), and merged with the code
that creates the hyp mappings.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/cpucaps.h |  3 +-
 arch/arm64/include/asm/kvm_asm.h |  6 +++
 arch/arm64/include/asm/kvm_mmu.h |  3 +-
 arch/arm64/include/asm/mmu.h     |  6 +++
 arch/arm64/kernel/proton-pack.c  | 47 ++++++++++++++++++++++-
 arch/arm64/kvm/arm.c             |  3 +-
 arch/arm64/kvm/hyp/smccc_wa.S    | 66 ++++++++++++++++++++++++++++++++
 7 files changed, 130 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index e7d98997c09c3..f42fd0a2e81c8 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -66,7 +66,8 @@
 #define ARM64_HAS_TLB_RANGE			56
 #define ARM64_MTE				57
 #define ARM64_WORKAROUND_1508412		58
+#define ARM64_SPECTRE_BHB			59
 
-#define ARM64_NCAPS				59
+#define ARM64_NCAPS				60
 
 #endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 044bb9e2cd74f..c34cd44637d23 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -35,6 +35,8 @@
 #define KVM_VECTOR_PREAMBLE	(2 * AARCH64_INSN_SIZE)
 
 #define __SMCCC_WORKAROUND_1_SMC_SZ 36
+#define __SMCCC_WORKAROUND_3_SMC_SZ 36
+#define __SPECTRE_BHB_LOOP_SZ       44
 
 #define KVM_HOST_SMCCC_ID(id)						\
 	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
@@ -199,6 +201,10 @@ extern void __vgic_v3_init_lrs(void);
 extern u32 __kvm_get_mdcr_el2(void);
 
 extern char __smccc_workaround_1_smc[__SMCCC_WORKAROUND_1_SMC_SZ];
+extern char __smccc_workaround_3_smc[__SMCCC_WORKAROUND_3_SMC_SZ];
+extern char __spectre_bhb_loop_k8[__SPECTRE_BHB_LOOP_SZ];
+extern char __spectre_bhb_loop_k24[__SPECTRE_BHB_LOOP_SZ];
+extern char __spectre_bhb_loop_k32[__SPECTRE_BHB_LOOP_SZ];
 
 /*
  * Obtain the PC-relative address of a kernel symbol
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 331394306ccee..47dafd6ab3a30 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -237,7 +237,8 @@ static inline void *kvm_get_hyp_vector(void)
 	void *vect = kern_hyp_va(kvm_ksym_ref(__kvm_hyp_vector));
 	int slot = -1;
 
-	if (cpus_have_const_cap(ARM64_SPECTRE_V2) && data->fn) {
+	if ((cpus_have_const_cap(ARM64_SPECTRE_V2) ||
+	     cpus_have_const_cap(ARM64_SPECTRE_BHB)) && data->template_start) {
 		vect = kern_hyp_va(kvm_ksym_ref(__bp_harden_hyp_vecs));
 		slot = data->hyp_vectors_slot;
 	}
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index c7315862e2435..bc151b7dc042c 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -67,6 +67,12 @@ typedef void (*bp_hardening_cb_t)(void);
 struct bp_hardening_data {
 	int			hyp_vectors_slot;
 	bp_hardening_cb_t	fn;
+
+	/*
+	 * template_start is only used by the BHB mitigation to identify the
+	 * hyp_vectors_slot sequence.
+	 */
+	const char *template_start;
 };
 
 DECLARE_PER_CPU_READ_MOSTLY(struct bp_hardening_data, bp_hardening_data);
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 0ab98d20a2742..1eb1a9ee293eb 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -220,9 +220,9 @@ static void __copy_hyp_vect_bpi(int slot, const char *hyp_vecs_start,
 	__flush_icache_range((uintptr_t)dst, (uintptr_t)dst + SZ_2K);
 }
 
+static DEFINE_RAW_SPINLOCK(bp_lock);
 static void install_bp_hardening_cb(bp_hardening_cb_t fn)
 {
-	static DEFINE_RAW_SPINLOCK(bp_lock);
 	int cpu, slot = -1;
 	const char *hyp_vecs_start = __smccc_workaround_1_smc;
 	const char *hyp_vecs_end = __smccc_workaround_1_smc +
@@ -253,6 +253,7 @@ static void install_bp_hardening_cb(bp_hardening_cb_t fn)
 
 	__this_cpu_write(bp_hardening_data.hyp_vectors_slot, slot);
 	__this_cpu_write(bp_hardening_data.fn, fn);
+	__this_cpu_write(bp_hardening_data.template_start, hyp_vecs_start);
 	raw_spin_unlock(&bp_lock);
 }
 #else
@@ -819,3 +820,47 @@ enum mitigation_state arm64_get_spectre_bhb_state(void)
 {
 	return spectre_bhb_state;
 }
+
+static int kvm_bhb_get_vecs_size(const char *start)
+{
+	if (start == __smccc_workaround_3_smc)
+		return __SMCCC_WORKAROUND_3_SMC_SZ;
+	else if (start == __spectre_bhb_loop_k8 ||
+		 start == __spectre_bhb_loop_k24 ||
+		 start == __spectre_bhb_loop_k32)
+		return __SPECTRE_BHB_LOOP_SZ;
+
+	return 0;
+}
+
+void kvm_setup_bhb_slot(const char *hyp_vecs_start)
+{
+	int cpu, slot = -1, size;
+	const char *hyp_vecs_end;
+
+	if (!IS_ENABLED(CONFIG_KVM) || !is_hyp_mode_available())
+		return;
+
+	size = kvm_bhb_get_vecs_size(hyp_vecs_start);
+	if (WARN_ON_ONCE(!hyp_vecs_start || !size))
+		return;
+	hyp_vecs_end = hyp_vecs_start + size;
+
+	raw_spin_lock(&bp_lock);
+	for_each_possible_cpu(cpu) {
+		if (per_cpu(bp_hardening_data.template_start, cpu) == hyp_vecs_start) {
+			slot = per_cpu(bp_hardening_data.hyp_vectors_slot, cpu);
+			break;
+		}
+	}
+
+	if (slot == -1) {
+		slot = atomic_inc_return(&arm64_el2_vector_last_slot);
+		BUG_ON(slot >= BP_HARDEN_EL2_SLOTS);
+		__copy_hyp_vect_bpi(slot, hyp_vecs_start, hyp_vecs_end);
+	}
+
+	__this_cpu_write(bp_hardening_data.hyp_vectors_slot, slot);
+	__this_cpu_write(bp_hardening_data.template_start, hyp_vecs_start);
+	raw_spin_unlock(&bp_lock);
+}
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 5bc978be80434..4d63fcd7574b2 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1337,7 +1337,8 @@ static int kvm_map_vectors(void)
 	 * !SV2 +  HEL2 -> allocate one vector slot and use exec mapping
 	 *  SV2 +  HEL2 -> use hardened vectors and use exec mapping
 	 */
-	if (cpus_have_const_cap(ARM64_SPECTRE_V2)) {
+	if (cpus_have_const_cap(ARM64_SPECTRE_V2) ||
+	    cpus_have_const_cap(ARM64_SPECTRE_BHB)) {
 		__kvm_bp_vect_base = kvm_ksym_ref(__bp_harden_hyp_vecs);
 		__kvm_bp_vect_base = kern_hyp_va(__kvm_bp_vect_base);
 	}
diff --git a/arch/arm64/kvm/hyp/smccc_wa.S b/arch/arm64/kvm/hyp/smccc_wa.S
index b0441dbdf68bd..6985dfbc1be19 100644
--- a/arch/arm64/kvm/hyp/smccc_wa.S
+++ b/arch/arm64/kvm/hyp/smccc_wa.S
@@ -30,3 +30,69 @@ SYM_DATA_START(__smccc_workaround_1_smc)
 1:	.org __smccc_workaround_1_smc + __SMCCC_WORKAROUND_1_SMC_SZ
 	.org 1b
 SYM_DATA_END(__smccc_workaround_1_smc)
+
+	.global		__smccc_workaround_3_smc
+SYM_DATA_START(__smccc_workaround_3_smc)
+	esb
+	sub	sp, sp, #(8 * 4)
+	stp	x2, x3, [sp, #(8 * 0)]
+	stp	x0, x1, [sp, #(8 * 2)]
+	mov	w0, #ARM_SMCCC_ARCH_WORKAROUND_3
+	smc	#0
+	ldp	x2, x3, [sp, #(8 * 0)]
+	ldp	x0, x1, [sp, #(8 * 2)]
+	add	sp, sp, #(8 * 4)
+1:	.org __smccc_workaround_3_smc + __SMCCC_WORKAROUND_3_SMC_SZ
+	.org 1b
+SYM_DATA_END(__smccc_workaround_3_smc)
+
+	.global	__spectre_bhb_loop_k8
+SYM_DATA_START(__spectre_bhb_loop_k8)
+	esb
+	sub	sp, sp, #(8 * 2)
+	stp	x0, x1, [sp, #(8 * 0)]
+	mov	x0, #8
+2:	b	. + 4
+	subs	x0, x0, #1
+	b.ne	2b
+	dsb	nsh
+	isb
+	ldp	x0, x1, [sp, #(8 * 0)]
+	add	sp, sp, #(8 * 2)
+1:	.org __spectre_bhb_loop_k8 + __SPECTRE_BHB_LOOP_SZ
+	.org 1b
+SYM_DATA_END(__spectre_bhb_loop_k8)
+
+	.global	__spectre_bhb_loop_k24
+SYM_DATA_START(__spectre_bhb_loop_k24)
+	esb
+	sub	sp, sp, #(8 * 2)
+	stp	x0, x1, [sp, #(8 * 0)]
+	mov	x0, #8
+2:	b	. + 4
+	subs	x0, x0, #1
+	b.ne	2b
+	dsb	nsh
+	isb
+	ldp	x0, x1, [sp, #(8 * 0)]
+	add	sp, sp, #(8 * 2)
+1:	.org __spectre_bhb_loop_k24 + __SPECTRE_BHB_LOOP_SZ
+	.org 1b
+SYM_DATA_END(__spectre_bhb_loop_k24)
+
+	.global	__spectre_bhb_loop_k32
+SYM_DATA_START(__spectre_bhb_loop_k32)
+	esb
+	sub	sp, sp, #(8 * 2)
+	stp	x0, x1, [sp, #(8 * 0)]
+	mov	x0, #8
+2:	b	. + 4
+	subs	x0, x0, #1
+	b.ne	2b
+	dsb	nsh
+	isb
+	ldp	x0, x1, [sp, #(8 * 0)]
+	add	sp, sp, #(8 * 2)
+1:	.org __spectre_bhb_loop_k32 + __SPECTRE_BHB_LOOP_SZ
+	.org 1b
+SYM_DATA_END(__spectre_bhb_loop_k32)
-- 
GitLab


From a330601c637b6d960163766150937ac2b73db53e Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Tue, 8 Mar 2022 20:18:20 +0100
Subject: [PATCH 4407/4878] ARM: fix build error when BPF_SYSCALL is disabled

commit 330f4c53d3c2d8b11d86ec03a964b86dc81452f5 upstream.

It was missing a semicolon.

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Fixes: 25875aa71dfe ("ARM: include unprivileged BPF status in Spectre V2 reporting").
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/spectre.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/spectre.c b/arch/arm/kernel/spectre.c
index e7fea962d632c..0dcefc36fb7a0 100644
--- a/arch/arm/kernel/spectre.c
+++ b/arch/arm/kernel/spectre.c
@@ -10,7 +10,7 @@ static bool _unprivileged_ebpf_enabled(void)
 #ifdef CONFIG_BPF_SYSCALL
 	return !sysctl_unprivileged_bpf_disabled;
 #else
-	return false
+	return false;
 #endif
 }
 
-- 
GitLab


From e192c8baa69ac8a5585d61ac535aa1e5eb795e80 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 10 Nov 2021 14:48:00 +0000
Subject: [PATCH 4408/4878] arm64: Mitigate spectre style branch history side
 channels

commit 558c303c9734af5a813739cd284879227f7297d2 upstream.

Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation.
When taking an exception from user-space, a sequence of branches
or a firmware call overwrites or invalidates the branch history.

The sequence of branches is added to the vectors, and should appear
before the first indirect branch. For systems using KPTI the sequence
is added to the kpti trampoline where it has a free register as the exit
from the trampoline is via a 'ret'. For systems not using KPTI, the same
register tricks are used to free up a register in the vectors.

For the firmware call, arch-workaround-3 clobbers 4 registers, so
there is no choice but to save them to the EL1 stack. This only happens
for entry from EL0, so if we take an exception due to the stack access,
it will not become re-entrant.

For KVM, the existing branch-predictor-hardening vectors are used.
When a spectre version of these vectors is in use, the firmware call
is sufficient to mitigate against Spectre-BHB. For the non-spectre
versions, the sequence of branches is added to the indirect vector.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
[ modified for stable, removed bitmap of mitigations,  use kvm template
  infrastructure ]
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/Kconfig                  |   9 ++
 arch/arm64/include/asm/assembler.h  |   4 +-
 arch/arm64/include/asm/cpufeature.h |  15 ++
 arch/arm64/include/asm/cputype.h    |   8 +
 arch/arm64/include/asm/spectre.h    |   4 +-
 arch/arm64/include/asm/sysreg.h     |   1 +
 arch/arm64/include/asm/vectors.h    |   5 +
 arch/arm64/kernel/cpu_errata.c      |   7 +
 arch/arm64/kernel/proton-pack.c     | 234 +++++++++++++++++++++++++++-
 arch/arm64/kvm/hyp/hyp-entry.S      |   4 +
 10 files changed, 288 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 3da71fe56b922..7c7906e9dafda 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1184,6 +1184,15 @@ config UNMAP_KERNEL_AT_EL0
 
 	  If unsure, say Y.
 
+config MITIGATE_SPECTRE_BRANCH_HISTORY
+	bool "Mitigate Spectre style attacks against branch history" if EXPERT
+	default y
+	help
+	  Speculation attacks against some high-performance processors can
+	  make use of branch history to influence future speculation.
+	  When taking an exception from user-space, a sequence of branches
+	  or a firmware call overwrites the branch history.
+
 config RODATA_FULL_DEFAULT_ENABLED
 	bool "Apply r/o permissions of VM areas also to their linear aliases"
 	default y
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index c5ab2f2e4b628..19feb2deca480 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -797,7 +797,9 @@ USER(\label, ic	ivau, \tmp2)			// invalidate I line PoU
 
 	.macro __mitigate_spectre_bhb_loop      tmp
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
-	mov	\tmp, #32
+alternative_cb  spectre_bhb_patch_loop_iter
+	mov	\tmp, #32		// Patched to correct the immediate
+alternative_cb_end
 .Lspectre_bhb_loop\@:
 	b	. + 4
 	subs	\tmp, \tmp, #1
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index da250e4741bd7..74e33de887783 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -606,6 +606,21 @@ static inline bool cpu_supports_mixed_endian_el0(void)
 	return id_aa64mmfr0_mixed_endian_el0(read_cpuid(ID_AA64MMFR0_EL1));
 }
 
+static inline bool supports_csv2p3(int scope)
+{
+	u64 pfr0;
+	u8 csv2_val;
+
+	if (scope == SCOPE_LOCAL_CPU)
+		pfr0 = read_sysreg_s(SYS_ID_AA64PFR0_EL1);
+	else
+		pfr0 = read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1);
+
+	csv2_val = cpuid_feature_extract_unsigned_field(pfr0,
+							ID_AA64PFR0_CSV2_SHIFT);
+	return csv2_val == 3;
+}
+
 static inline bool system_supports_32bit_el0(void)
 {
 	return cpus_have_const_cap(ARM64_HAS_32BIT_EL0);
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 999b9149f8568..bfbf0c4c7c5e5 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -73,10 +73,14 @@
 #define ARM_CPU_PART_CORTEX_A76		0xD0B
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
+#define ARM_CPU_PART_NEOVERSE_V1	0xD40
+#define ARM_CPU_PART_CORTEX_A78		0xD41
+#define ARM_CPU_PART_CORTEX_X1		0xD44
 #define ARM_CPU_PART_CORTEX_A510	0xD46
 #define ARM_CPU_PART_CORTEX_A710	0xD47
 #define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
+#define ARM_CPU_PART_CORTEX_A78C	0xD4B
 
 #define APM_CPU_PART_POTENZA		0x000
 
@@ -117,10 +121,14 @@
 #define MIDR_CORTEX_A76	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
+#define MIDR_NEOVERSE_V1	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V1)
+#define MIDR_CORTEX_A78	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78)
+#define MIDR_CORTEX_X1	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X1)
 #define MIDR_CORTEX_A510 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A510)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
 #define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
+#define MIDR_CORTEX_A78C	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
diff --git a/arch/arm64/include/asm/spectre.h b/arch/arm64/include/asm/spectre.h
index eb472f7f53b25..4b3a5f050f71f 100644
--- a/arch/arm64/include/asm/spectre.h
+++ b/arch/arm64/include/asm/spectre.h
@@ -30,5 +30,7 @@ void spectre_v4_enable_mitigation(const struct arm64_cpu_capabilities *__unused)
 void spectre_v4_enable_task_mitigation(struct task_struct *tsk);
 
 enum mitigation_state arm64_get_spectre_bhb_state(void);
-
+bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry, int scope);
+u8 spectre_bhb_loop_affected(int scope);
+void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *__unused);
 #endif	/* __ASM_SPECTRE_H */
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index df340a4bb0db2..f74918d247a5f 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -801,6 +801,7 @@
 #endif
 
 /* id_aa64mmfr1 */
+#define ID_AA64MMFR1_ECBHB_SHIFT	60
 #define ID_AA64MMFR1_AFP_SHIFT		44
 #define ID_AA64MMFR1_ETS_SHIFT		36
 #define ID_AA64MMFR1_TWED_SHIFT		32
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
index 3f76dfd9e0744..1f65c37dc653b 100644
--- a/arch/arm64/include/asm/vectors.h
+++ b/arch/arm64/include/asm/vectors.h
@@ -40,6 +40,11 @@ enum arm64_bp_harden_el1_vectors {
 	EL1_VECTOR_KPTI,
 };
 
+#ifndef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+#define EL1_VECTOR_BHB_LOOP		-1
+#define EL1_VECTOR_BHB_FW		-1
+#endif /* !CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+
 /* The vectors to use on return from EL0. e.g. to remap the kernel */
 DECLARE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector);
 
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index cafaf0da05b7c..533559c7d2b31 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -473,6 +473,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 		.matches = has_spectre_v4,
 		.cpu_enable = spectre_v4_enable_mitigation,
 	},
+	{
+		.desc = "Spectre-BHB",
+		.capability = ARM64_SPECTRE_BHB,
+		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
+		.matches = is_spectre_bhb_affected,
+		.cpu_enable = spectre_bhb_enable_mitigation,
+	},
 #ifdef CONFIG_ARM64_ERRATUM_1418040
 	{
 		.desc = "ARM erratum 1418040",
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 1eb1a9ee293eb..47c96944466b0 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -24,8 +24,11 @@
 #include <linux/prctl.h>
 #include <linux/sched/task_stack.h>
 
+#include <asm/insn.h>
 #include <asm/spectre.h>
 #include <asm/traps.h>
+#include <asm/vectors.h>
+#include <asm/virt.h>
 
 /*
  * We try to ensure that the mitigation state can never change as the result of
@@ -814,6 +817,17 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
 	}
 }
 
+/*
+ * Spectre BHB.
+ *
+ * A CPU is either:
+ * - Mitigated by a branchy loop a CPU specific number of times, and listed
+ *   in our "loop mitigated list".
+ * - Mitigated in software by the firmware Spectre v2 call.
+ * - Has the 'Exception Clears Branch History Buffer' (ECBHB) feature, so no
+ *   software mitigation in the vectors is needed.
+ * - Has CSV2.3, so is unaffected.
+ */
 static enum mitigation_state spectre_bhb_state;
 
 enum mitigation_state arm64_get_spectre_bhb_state(void)
@@ -821,6 +835,150 @@ enum mitigation_state arm64_get_spectre_bhb_state(void)
 	return spectre_bhb_state;
 }
 
+/*
+ * This must be called with SCOPE_LOCAL_CPU for each type of CPU, before any
+ * SCOPE_SYSTEM call will give the right answer.
+ */
+u8 spectre_bhb_loop_affected(int scope)
+{
+	u8 k = 0;
+	static u8 max_bhb_k;
+
+	if (scope == SCOPE_LOCAL_CPU) {
+		static const struct midr_range spectre_bhb_k32_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
+			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
+			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
+			{},
+		};
+		static const struct midr_range spectre_bhb_k24_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
+			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
+			{},
+		};
+		static const struct midr_range spectre_bhb_k8_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
+			{},
+		};
+
+		if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k32_list))
+			k = 32;
+		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k24_list))
+			k = 24;
+		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k8_list))
+			k =  8;
+
+		max_bhb_k = max(max_bhb_k, k);
+	} else {
+		k = max_bhb_k;
+	}
+
+	return k;
+}
+
+static enum mitigation_state spectre_bhb_get_cpu_fw_mitigation_state(void)
+{
+	int ret;
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
+			     ARM_SMCCC_ARCH_WORKAROUND_3, &res);
+
+	ret = res.a0;
+	switch (ret) {
+	case SMCCC_RET_SUCCESS:
+		return SPECTRE_MITIGATED;
+	case SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED:
+		return SPECTRE_UNAFFECTED;
+	default:
+		fallthrough;
+	case SMCCC_RET_NOT_SUPPORTED:
+		return SPECTRE_VULNERABLE;
+	}
+}
+
+static bool is_spectre_bhb_fw_affected(int scope)
+{
+	static bool system_affected;
+	enum mitigation_state fw_state;
+	bool has_smccc = arm_smccc_1_1_get_conduit() != SMCCC_CONDUIT_NONE;
+	static const struct midr_range spectre_bhb_firmware_mitigated_list[] = {
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
+		{},
+	};
+	bool cpu_in_list = is_midr_in_range_list(read_cpuid_id(),
+					 spectre_bhb_firmware_mitigated_list);
+
+	if (scope != SCOPE_LOCAL_CPU)
+		return system_affected;
+
+	fw_state = spectre_bhb_get_cpu_fw_mitigation_state();
+	if (cpu_in_list || (has_smccc && fw_state == SPECTRE_MITIGATED)) {
+		system_affected = true;
+		return true;
+	}
+
+	return false;
+}
+
+static bool supports_ecbhb(int scope)
+{
+	u64 mmfr1;
+
+	if (scope == SCOPE_LOCAL_CPU)
+		mmfr1 = read_sysreg_s(SYS_ID_AA64MMFR1_EL1);
+	else
+		mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
+
+	return cpuid_feature_extract_unsigned_field(mmfr1,
+						    ID_AA64MMFR1_ECBHB_SHIFT);
+}
+
+bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry,
+			     int scope)
+{
+	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
+
+	if (supports_csv2p3(scope))
+		return false;
+
+	if (spectre_bhb_loop_affected(scope))
+		return true;
+
+	if (is_spectre_bhb_fw_affected(scope))
+		return true;
+
+	return false;
+}
+
+static void this_cpu_set_vectors(enum arm64_bp_harden_el1_vectors slot)
+{
+	const char *v = arm64_get_bp_hardening_vector(slot);
+
+	if (slot < 0)
+		return;
+
+	__this_cpu_write(this_cpu_vector, v);
+
+	/*
+	 * When KPTI is in use, the vectors are switched when exiting to
+	 * user-space.
+	 */
+	if (arm64_kernel_unmapped_at_el0())
+		return;
+
+	write_sysreg(v, vbar_el1);
+	isb();
+}
+
+#ifdef CONFIG_KVM
 static int kvm_bhb_get_vecs_size(const char *start)
 {
 	if (start == __smccc_workaround_3_smc)
@@ -833,7 +991,7 @@ static int kvm_bhb_get_vecs_size(const char *start)
 	return 0;
 }
 
-void kvm_setup_bhb_slot(const char *hyp_vecs_start)
+static void kvm_setup_bhb_slot(const char *hyp_vecs_start)
 {
 	int cpu, slot = -1, size;
 	const char *hyp_vecs_end;
@@ -864,3 +1022,77 @@ void kvm_setup_bhb_slot(const char *hyp_vecs_start)
 	__this_cpu_write(bp_hardening_data.template_start, hyp_vecs_start);
 	raw_spin_unlock(&bp_lock);
 }
+#else
+#define __smccc_workaround_3_smc NULL
+#define __spectre_bhb_loop_k8 NULL
+#define __spectre_bhb_loop_k24 NULL
+#define __spectre_bhb_loop_k32 NULL
+
+static void kvm_setup_bhb_slot(const char *hyp_vecs_start) { }
+#endif /* CONFIG_KVM */
+
+void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry)
+{
+	enum mitigation_state fw_state, state = SPECTRE_VULNERABLE;
+
+	if (!is_spectre_bhb_affected(entry, SCOPE_LOCAL_CPU))
+		return;
+
+	if (arm64_get_spectre_v2_state() == SPECTRE_VULNERABLE) {
+		/* No point mitigating Spectre-BHB alone. */
+	} else if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY)) {
+		pr_info_once("spectre-bhb mitigation disabled by compile time option\n");
+	} else if (cpu_mitigations_off()) {
+		pr_info_once("spectre-bhb mitigation disabled by command line option\n");
+	} else if (supports_ecbhb(SCOPE_LOCAL_CPU)) {
+		state = SPECTRE_MITIGATED;
+	} else if (spectre_bhb_loop_affected(SCOPE_LOCAL_CPU)) {
+		switch (spectre_bhb_loop_affected(SCOPE_SYSTEM)) {
+		case 8:
+			kvm_setup_bhb_slot(__spectre_bhb_loop_k8);
+			break;
+		case 24:
+			kvm_setup_bhb_slot(__spectre_bhb_loop_k24);
+			break;
+		case 32:
+			kvm_setup_bhb_slot(__spectre_bhb_loop_k32);
+			break;
+		default:
+			WARN_ON_ONCE(1);
+		}
+		this_cpu_set_vectors(EL1_VECTOR_BHB_LOOP);
+
+		state = SPECTRE_MITIGATED;
+	} else if (is_spectre_bhb_fw_affected(SCOPE_LOCAL_CPU)) {
+		fw_state = spectre_bhb_get_cpu_fw_mitigation_state();
+		if (fw_state == SPECTRE_MITIGATED) {
+			kvm_setup_bhb_slot(__smccc_workaround_3_smc);
+			this_cpu_set_vectors(EL1_VECTOR_BHB_FW);
+
+			state = SPECTRE_MITIGATED;
+		}
+	}
+
+	update_mitigation_state(&spectre_bhb_state, state);
+}
+
+/* Patched to correct the immediate */
+void noinstr spectre_bhb_patch_loop_iter(struct alt_instr *alt,
+				   __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+	u8 rd;
+	u32 insn;
+	u16 loop_count = spectre_bhb_loop_affected(SCOPE_SYSTEM);
+
+	BUG_ON(nr_inst != 1); /* MOV -> MOV */
+
+	if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY))
+		return;
+
+	insn = le32_to_cpu(*origptr);
+	rd = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RD, insn);
+	insn = aarch64_insn_gen_movewide(rd, loop_count, 0,
+					 AARCH64_INSN_VARIANT_64BIT,
+					 AARCH64_INSN_MOVEWIDE_ZERO);
+	*updptr++ = cpu_to_le32(insn);
+}
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index bcbead3746c66..bc06243cf4225 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -61,6 +61,10 @@ el1_sync:				// Guest trapped into EL2
 	/* ARM_SMCCC_ARCH_WORKAROUND_2 handling */
 	eor	w1, w1, #(ARM_SMCCC_ARCH_WORKAROUND_1 ^ \
 			  ARM_SMCCC_ARCH_WORKAROUND_2)
+	cbz	w1, wa_epilogue
+
+	eor	w1, w1, #(ARM_SMCCC_ARCH_WORKAROUND_2 ^ \
+			  ARM_SMCCC_ARCH_WORKAROUND_3)
 	cbnz	w1, el1_trap
 
 wa_epilogue:
-- 
GitLab


From 1749b553d73ba9191b7e4dff5864b6a1f18ac843 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Wed, 9 Mar 2022 19:08:42 +0000
Subject: [PATCH 4409/4878] ARM: fix co-processor register typo

commit 33970b031dc4653cc9dc80f2886976706c4c8ef1 upstream.

In the recent Spectre BHB patches, there was a typo that is only
exposed in certain configurations: mcr p15,0,XX,c7,r5,4 should have
been mcr p15,0,XX,c7,c5,4

Reported-by: kernel test robot <lkp@intel.com>
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/assembler.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 835ed18047c69..24a1f498b3b5f 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -113,7 +113,7 @@
 	.endm
 
 	.macro	isb, args
-	mcr	p15, 0, r0, c7, r5, 4
+	mcr	p15, 0, r0, c7, c5, 4
 	.endm
 #endif
 
-- 
GitLab


From 38c26bdb3cc53f219d6ab75ac1a95436f393c60f Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Fri, 10 Dec 2021 11:16:18 +0000
Subject: [PATCH 4410/4878] KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be
 discovered and migrated

commit a5905d6af492ee6a4a2205f0d550b3f931b03d03 upstream.

KVM allows the guest to discover whether the ARCH_WORKAROUND SMCCC are
implemented, and to preserve that state during migration through its
firmware register interface.

Add the necessary boiler plate for SMCCC_ARCH_WORKAROUND_3.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/uapi/asm/kvm.h |  5 +++++
 arch/arm64/kvm/hypercalls.c       | 12 ++++++++++++
 arch/arm64/kvm/psci.c             | 18 +++++++++++++++++-
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 1c17c3a24411d..531ff62e82e95 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -273,6 +273,11 @@ struct kvm_vcpu_events {
 #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED	3
 #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED     	(1U << 4)
 
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3	KVM_REG_ARM_FW_REG(3)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL		0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL		1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED	2
+
 /* SVE registers */
 #define KVM_REG_ARM64_SVE		(0x15 << KVM_REG_ARM_COPROC_SHIFT)
 
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index 25ea4ecb6449f..bc111a1aff032 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -58,6 +58,18 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 				break;
 			}
 			break;
+		case ARM_SMCCC_ARCH_WORKAROUND_3:
+			switch (arm64_get_spectre_bhb_state()) {
+			case SPECTRE_VULNERABLE:
+				break;
+			case SPECTRE_MITIGATED:
+				val = SMCCC_RET_SUCCESS;
+				break;
+			case SPECTRE_UNAFFECTED:
+				val = SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED;
+				break;
+			}
+			break;
 		case ARM_SMCCC_HV_PV_TIME_FEATURES:
 			val = SMCCC_RET_SUCCESS;
 			break;
diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index db4056ecccfda..20ba5136ac3dd 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -397,7 +397,7 @@ int kvm_psci_call(struct kvm_vcpu *vcpu)
 
 int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu)
 {
-	return 3;		/* PSCI version and two workaround registers */
+	return 4;		/* PSCI version and three workaround registers */
 }
 
 int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
@@ -411,6 +411,9 @@ int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
 	if (put_user(KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2, uindices++))
 		return -EFAULT;
 
+	if (put_user(KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3, uindices++))
+		return -EFAULT;
+
 	return 0;
 }
 
@@ -450,6 +453,17 @@ static int get_kernel_wa_level(u64 regid)
 		case SPECTRE_VULNERABLE:
 			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL;
 		}
+		break;
+	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3:
+		switch (arm64_get_spectre_bhb_state()) {
+		case SPECTRE_VULNERABLE:
+			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL;
+		case SPECTRE_MITIGATED:
+			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL;
+		case SPECTRE_UNAFFECTED:
+			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED;
+		}
+		return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL;
 	}
 
 	return -EINVAL;
@@ -466,6 +480,7 @@ int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 		break;
 	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1:
 	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2:
+	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3:
 		val = get_kernel_wa_level(reg->id) & KVM_REG_FEATURE_LEVEL_MASK;
 		break;
 	default:
@@ -511,6 +526,7 @@ int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 	}
 
 	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1:
+	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3:
 		if (val & ~KVM_REG_FEATURE_LEVEL_MASK)
 			return -EINVAL;
 
-- 
GitLab


From 8c4192d126ba2a231a0e242c1cbdfed6c7830723 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Wed, 9 Mar 2022 15:07:27 -0700
Subject: [PATCH 4411/4878] ARM: Do not use NOCROSSREFS directive with ld.lld

commit 36168e387fa7d0f1fe0cd5cf76c8cea7aee714fa upstream.

ld.lld does not support the NOCROSSREFS directive at the moment, which
breaks the build after commit b9baf5c8c5c3 ("ARM: Spectre-BHB
workaround"):

  ld.lld: error: ./arch/arm/kernel/vmlinux.lds:34: AT expected, but got NOCROSSREFS

Support for this directive will eventually be implemented, at which
point a version check can be added. To avoid breaking the build in the
meantime, just define NOCROSSREFS to nothing when using ld.lld, with a
link to the issue for tracking.

Cc: stable@vger.kernel.org
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Link: https://github.com/ClangBuiltLinux/linux/issues/1609
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/vmlinux.lds.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/include/asm/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h
index 0ef21bfae9f62..fad45c884e988 100644
--- a/arch/arm/include/asm/vmlinux.lds.h
+++ b/arch/arm/include/asm/vmlinux.lds.h
@@ -26,6 +26,14 @@
 #define ARM_MMU_DISCARD(x)	x
 #endif
 
+/*
+ * ld.lld does not support NOCROSSREFS:
+ * https://github.com/ClangBuiltLinux/linux/issues/1609
+ */
+#ifdef CONFIG_LD_IS_LLD
+#define NOCROSSREFS
+#endif
+
 /* Set start/end symbol names to the LMA for the section */
 #define ARM_LMA(sym, section)						\
 	sym##_start = LOADADDR(section);				\
-- 
GitLab


From 551717cf3b58f11311d10f70eb027d4b275135de Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Fri, 10 Dec 2021 14:32:56 +0000
Subject: [PATCH 4412/4878] arm64: Use the clearbhb instruction in mitigations

commit 228a26b912287934789023b4132ba76065d9491c upstream.

Future CPUs may implement a clearbhb instruction that is sufficient
to mitigate SpectreBHB. CPUs that implement this instruction, but
not CSV2.3 must be affected by Spectre-BHB.

Add support to use this instruction as the BHB mitigation on CPUs
that support it. The instruction is in the hint space, so it will
be treated by a NOP as older CPUs.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
[ modified for stable: Use a KVM vector template instead of alternatives,
  removed bitmap of mitigations ]
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/include/asm/assembler.h  |  7 +++++++
 arch/arm64/include/asm/cpufeature.h | 13 +++++++++++++
 arch/arm64/include/asm/insn.h       |  1 +
 arch/arm64/include/asm/kvm_asm.h    |  2 ++
 arch/arm64/include/asm/sysreg.h     |  1 +
 arch/arm64/include/asm/vectors.h    |  7 +++++++
 arch/arm64/kernel/cpufeature.c      |  1 +
 arch/arm64/kernel/entry.S           |  8 ++++++++
 arch/arm64/kernel/proton-pack.c     | 12 ++++++++++++
 arch/arm64/kvm/hyp/smccc_wa.S       |  9 +++++++++
 10 files changed, 61 insertions(+)

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 19feb2deca480..011e681a23366 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -97,6 +97,13 @@
 	hint	#20
 	.endm
 
+/*
+ * Clear Branch History instruction
+ */
+	.macro clearbhb
+	hint	#22
+	.endm
+
 /*
  * Speculation barrier
  */
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 74e33de887783..423f9b40e4d95 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -621,6 +621,19 @@ static inline bool supports_csv2p3(int scope)
 	return csv2_val == 3;
 }
 
+static inline bool supports_clearbhb(int scope)
+{
+	u64 isar2;
+
+	if (scope == SCOPE_LOCAL_CPU)
+		isar2 = read_sysreg_s(SYS_ID_AA64ISAR2_EL1);
+	else
+		isar2 = read_sanitised_ftr_reg(SYS_ID_AA64ISAR2_EL1);
+
+	return cpuid_feature_extract_unsigned_field(isar2,
+						    ID_AA64ISAR2_CLEARBHB_SHIFT);
+}
+
 static inline bool system_supports_32bit_el0(void)
 {
 	return cpus_have_const_cap(ARM64_HAS_32BIT_EL0);
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index 4b39293d0f72d..d45b42295254d 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -65,6 +65,7 @@ enum aarch64_insn_hint_cr_op {
 	AARCH64_INSN_HINT_PSB  = 0x11 << 5,
 	AARCH64_INSN_HINT_TSB  = 0x12 << 5,
 	AARCH64_INSN_HINT_CSDB = 0x14 << 5,
+	AARCH64_INSN_HINT_CLEARBHB = 0x16 << 5,
 
 	AARCH64_INSN_HINT_BTI   = 0x20 << 5,
 	AARCH64_INSN_HINT_BTIC  = 0x22 << 5,
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index c34cd44637d23..ada24a20a5671 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -37,6 +37,7 @@
 #define __SMCCC_WORKAROUND_1_SMC_SZ 36
 #define __SMCCC_WORKAROUND_3_SMC_SZ 36
 #define __SPECTRE_BHB_LOOP_SZ       44
+#define __SPECTRE_BHB_CLEARBHB_SZ   12
 
 #define KVM_HOST_SMCCC_ID(id)						\
 	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
@@ -205,6 +206,7 @@ extern char __smccc_workaround_3_smc[__SMCCC_WORKAROUND_3_SMC_SZ];
 extern char __spectre_bhb_loop_k8[__SPECTRE_BHB_LOOP_SZ];
 extern char __spectre_bhb_loop_k24[__SPECTRE_BHB_LOOP_SZ];
 extern char __spectre_bhb_loop_k32[__SPECTRE_BHB_LOOP_SZ];
+extern char __spectre_bhb_clearbhb[__SPECTRE_BHB_LOOP_SZ];
 
 /*
  * Obtain the PC-relative address of a kernel symbol
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index f74918d247a5f..1f2209ad2cca1 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -689,6 +689,7 @@
 #define ID_AA64ISAR1_GPI_IMP_DEF		0x1
 
 /* id_aa64isar2 */
+#define ID_AA64ISAR2_CLEARBHB_SHIFT	28
 #define ID_AA64ISAR2_RPRES_SHIFT	4
 #define ID_AA64ISAR2_WFXT_SHIFT		0
 
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
index 1f65c37dc653b..f64613a96d530 100644
--- a/arch/arm64/include/asm/vectors.h
+++ b/arch/arm64/include/asm/vectors.h
@@ -32,6 +32,12 @@ enum arm64_bp_harden_el1_vectors {
 	 * canonical vectors.
 	 */
 	EL1_VECTOR_BHB_FW,
+
+	/*
+	 * Use the ClearBHB instruction, before branching to the canonical
+	 * vectors.
+	 */
+	EL1_VECTOR_BHB_CLEAR_INSN,
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 
 	/*
@@ -43,6 +49,7 @@ enum arm64_bp_harden_el1_vectors {
 #ifndef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
 #define EL1_VECTOR_BHB_LOOP		-1
 #define EL1_VECTOR_BHB_FW		-1
+#define EL1_VECTOR_BHB_CLEAR_INSN	-1
 #endif /* !CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 
 /* The vectors to use on return from EL0. e.g. to remap the kernel */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index cad315e125942..c9108ed406458 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -211,6 +211,7 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_HIGHER_SAFE, ID_AA64ISAR2_CLEARBHB_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_RPRES_SHIFT, 4, 0),
 	ARM64_FTR_END,
 };
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 34aa2440a9520..d5bc1dbdd2fda 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -827,6 +827,7 @@ alternative_else_nop_endif
 #define BHB_MITIGATION_NONE	0
 #define BHB_MITIGATION_LOOP	1
 #define BHB_MITIGATION_FW	2
+#define BHB_MITIGATION_INSN	3
 
 	.macro tramp_ventry, vector_start, regsize, kpti, bhb
 	.align	7
@@ -843,6 +844,11 @@ alternative_else_nop_endif
 	__mitigate_spectre_bhb_loop	x30
 	.endif // \bhb == BHB_MITIGATION_LOOP
 
+	.if	\bhb == BHB_MITIGATION_INSN
+	clearbhb
+	isb
+	.endif // \bhb == BHB_MITIGATION_INSN
+
 	.if	\kpti == 1
 	/*
 	 * Defend against branch aliasing attacks by pushing a dummy
@@ -919,6 +925,7 @@ SYM_CODE_START_NOALIGN(tramp_vectors)
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
 	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_LOOP
 	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_FW
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_INSN
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_NONE
 SYM_CODE_END(tramp_vectors)
@@ -981,6 +988,7 @@ SYM_CODE_START(__bp_harden_el1_vectors)
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
 	generate_el1_vector	bhb=BHB_MITIGATION_LOOP
 	generate_el1_vector	bhb=BHB_MITIGATION_FW
+	generate_el1_vector	bhb=BHB_MITIGATION_INSN
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 SYM_CODE_END(__bp_harden_el1_vectors)
 	.popsection
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 47c96944466b0..0e5c411c81aa0 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -824,6 +824,7 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
  * - Mitigated by a branchy loop a CPU specific number of times, and listed
  *   in our "loop mitigated list".
  * - Mitigated in software by the firmware Spectre v2 call.
+ * - Has the ClearBHB instruction to perform the mitigation.
  * - Has the 'Exception Clears Branch History Buffer' (ECBHB) feature, so no
  *   software mitigation in the vectors is needed.
  * - Has CSV2.3, so is unaffected.
@@ -949,6 +950,9 @@ bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry,
 	if (supports_csv2p3(scope))
 		return false;
 
+	if (supports_clearbhb(scope))
+		return true;
+
 	if (spectre_bhb_loop_affected(scope))
 		return true;
 
@@ -987,6 +991,8 @@ static int kvm_bhb_get_vecs_size(const char *start)
 		 start == __spectre_bhb_loop_k24 ||
 		 start == __spectre_bhb_loop_k32)
 		return __SPECTRE_BHB_LOOP_SZ;
+	else if (start == __spectre_bhb_clearbhb)
+		return __SPECTRE_BHB_CLEARBHB_SZ;
 
 	return 0;
 }
@@ -1027,6 +1033,7 @@ static void kvm_setup_bhb_slot(const char *hyp_vecs_start)
 #define __spectre_bhb_loop_k8 NULL
 #define __spectre_bhb_loop_k24 NULL
 #define __spectre_bhb_loop_k32 NULL
+#define __spectre_bhb_clearbhb NULL
 
 static void kvm_setup_bhb_slot(const char *hyp_vecs_start) { }
 #endif /* CONFIG_KVM */
@@ -1045,6 +1052,11 @@ void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry)
 	} else if (cpu_mitigations_off()) {
 		pr_info_once("spectre-bhb mitigation disabled by command line option\n");
 	} else if (supports_ecbhb(SCOPE_LOCAL_CPU)) {
+		state = SPECTRE_MITIGATED;
+	} else if (supports_clearbhb(SCOPE_LOCAL_CPU)) {
+		kvm_setup_bhb_slot(__spectre_bhb_clearbhb);
+		this_cpu_set_vectors(EL1_VECTOR_BHB_CLEAR_INSN);
+
 		state = SPECTRE_MITIGATED;
 	} else if (spectre_bhb_loop_affected(SCOPE_LOCAL_CPU)) {
 		switch (spectre_bhb_loop_affected(SCOPE_SYSTEM)) {
diff --git a/arch/arm64/kvm/hyp/smccc_wa.S b/arch/arm64/kvm/hyp/smccc_wa.S
index 6985dfbc1be19..24b281912463d 100644
--- a/arch/arm64/kvm/hyp/smccc_wa.S
+++ b/arch/arm64/kvm/hyp/smccc_wa.S
@@ -96,3 +96,12 @@ SYM_DATA_START(__spectre_bhb_loop_k32)
 1:	.org __spectre_bhb_loop_k32 + __SPECTRE_BHB_LOOP_SZ
 	.org 1b
 SYM_DATA_END(__spectre_bhb_loop_k32)
+
+	.global	__spectre_bhb_clearbhb
+SYM_DATA_START(__spectre_bhb_clearbhb)
+	esb
+	clearbhb
+	isb
+1:	.org __spectre_bhb_clearbhb + __SPECTRE_BHB_CLEARBHB_SZ
+	.org 1b
+SYM_DATA_END(__spectre_bhb_clearbhb)
-- 
GitLab


From 90f59cc2f2cc55cb847fcbb43c7c9f5bd0d86139 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 10 Mar 2022 10:22:14 +0000
Subject: [PATCH 4413/4878] ARM: fix build warning in proc-v7-bugs.c

commit b1a384d2cbccb1eb3f84765020d25e2c1929706e upstream.

The kernel test robot discovered that building without
HARDEN_BRANCH_PREDICTOR issues a warning due to a missing
argument to pr_info().

Add the missing argument.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 9dd78194a372 ("ARM: report Spectre v2 status through sysfs")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mm/proc-v7-bugs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
index c226feab24573..06dbfb968182d 100644
--- a/arch/arm/mm/proc-v7-bugs.c
+++ b/arch/arm/mm/proc-v7-bugs.c
@@ -108,7 +108,8 @@ static unsigned int spectre_v2_install_workaround(unsigned int method)
 #else
 static unsigned int spectre_v2_install_workaround(unsigned int method)
 {
-	pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n");
+	pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n",
+		smp_processor_id());
 
 	return SPECTRE_VULNERABLE;
 }
-- 
GitLab


From b65b87e718c33caa46d5246d8fbeda895aa9cf5b Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 3 Mar 2022 16:53:56 +0000
Subject: [PATCH 4414/4878] arm64: proton-pack: Include unprivileged eBPF
 status in Spectre v2 mitigation reporting

commit 58c9a5060cb7cd529d49c93954cdafe81c1d642a upstream.

The mitigations for Spectre-BHB are only applied when an exception is
taken from user-space. The mitigation status is reported via the spectre_v2
sysfs vulnerabilities file.

When unprivileged eBPF is enabled the mitigation in the exception vectors
can be avoided by an eBPF program.

When unprivileged eBPF is enabled, print a warning and report vulnerable
via the sysfs vulnerabilities file.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kernel/proton-pack.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 0e5c411c81aa0..3dd489b62b29f 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/arm-smccc.h>
+#include <linux/bpf.h>
 #include <linux/cpu.h>
 #include <linux/device.h>
 #include <linux/nospec.h>
@@ -110,6 +111,15 @@ static const char *get_bhb_affected_string(enum mitigation_state bhb_state)
 	}
 }
 
+static bool _unprivileged_ebpf_enabled(void)
+{
+#ifdef CONFIG_BPF_SYSCALL
+	return !sysctl_unprivileged_bpf_disabled;
+#else
+	return false;
+#endif
+}
+
 ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
@@ -129,6 +139,9 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 		v2_str = "CSV2";
 		fallthrough;
 	case SPECTRE_MITIGATED:
+		if (bhb_state == SPECTRE_MITIGATED && _unprivileged_ebpf_enabled())
+			return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
+
 		return sprintf(buf, "Mitigation: %s%s\n", v2_str, bhb_str);
 	case SPECTRE_VULNERABLE:
 		fallthrough;
@@ -1108,3 +1121,16 @@ void noinstr spectre_bhb_patch_loop_iter(struct alt_instr *alt,
 					 AARCH64_INSN_MOVEWIDE_ZERO);
 	*updptr++ = cpu_to_le32(insn);
 }
+
+#ifdef CONFIG_BPF_SYSCALL
+#define EBPF_WARN "Unprivileged eBPF is enabled, data leaks possible via Spectre v2 BHB attacks!\n"
+void unpriv_ebpf_notify(int new_state)
+{
+	if (spectre_v2_state == SPECTRE_VULNERABLE ||
+	    spectre_bhb_state != SPECTRE_MITIGATED)
+		return;
+
+	if (!new_state)
+		pr_err("WARNING: %s", EBPF_WARN);
+}
+#endif
-- 
GitLab


From 5c600371b8fd02cbbb0eb83a9f664e3f0b75c28e Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:40 +0100
Subject: [PATCH 4415/4878] xen/xenbus: don't let xenbus_grant_ring() remove
 grants in error case

Commit 3777ea7bac3113005b7180e6b9dadf16d19a5827 upstream.

Letting xenbus_grant_ring() tear down grants in the error case is
problematic, as the other side could already have used these grants.
Calling gnttab_end_foreign_access_ref() without checking success is
resulting in an unclear situation for any caller of xenbus_grant_ring()
as in the error case the memory pages of the ring page might be
partially mapped. Freeing them would risk unwanted foreign access to
them, while not freeing them would leak memory.

In order to remove the need to undo any gnttab_grant_foreign_access()
calls, use gnttab_alloc_grant_references() to make sure no further
error can occur in the loop granting access to the ring pages.

It should be noted that this way of handling removes leaking of
grant entries in the error case, too.

This is CVE-2022-23040 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/xenbus/xenbus_client.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index 0cd728961fce9..16cfef0993295 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -379,7 +379,14 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr,
 		      unsigned int nr_pages, grant_ref_t *grefs)
 {
 	int err;
-	int i, j;
+	unsigned int i;
+	grant_ref_t gref_head;
+
+	err = gnttab_alloc_grant_references(nr_pages, &gref_head);
+	if (err) {
+		xenbus_dev_fatal(dev, err, "granting access to ring page");
+		return err;
+	}
 
 	for (i = 0; i < nr_pages; i++) {
 		unsigned long gfn;
@@ -389,23 +396,14 @@ int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr,
 		else
 			gfn = virt_to_gfn(vaddr);
 
-		err = gnttab_grant_foreign_access(dev->otherend_id, gfn, 0);
-		if (err < 0) {
-			xenbus_dev_fatal(dev, err,
-					 "granting access to ring page");
-			goto fail;
-		}
-		grefs[i] = err;
+		grefs[i] = gnttab_claim_grant_reference(&gref_head);
+		gnttab_grant_foreign_access_ref(grefs[i], dev->otherend_id,
+						gfn, 0);
 
 		vaddr = vaddr + XEN_PAGE_SIZE;
 	}
 
 	return 0;
-
-fail:
-	for (j = 0; j < i; j++)
-		gnttab_end_foreign_access_ref(grefs[j], 0);
-	return err;
 }
 EXPORT_SYMBOL_GPL(xenbus_grant_ring);
 
-- 
GitLab


From 3d81e85f30a8f712c3e4f2a507553d9063a20ed6 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:41 +0100
Subject: [PATCH 4416/4878] xen/grant-table: add
 gnttab_try_end_foreign_access()

Commit 6b1775f26a2da2b05a6dc8ec2b5d14e9a4701a1a upstream.

Add a new grant table function gnttab_try_end_foreign_access(), which
will remove and free a grant if it is not in use.

Its main use case is to either free a grant if it is no longer in use,
or to take some other action if it is still in use. This other action
can be an error exit, or (e.g. in the case of blkfront persistent grant
feature) some special handling.

This is CVE-2022-23036, CVE-2022-23038 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/grant-table.c | 14 ++++++++++++--
 include/xen/grant_table.h | 12 ++++++++++++
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 3729bea0c9895..1b82e7a3722a3 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -435,11 +435,21 @@ static void gnttab_add_deferred(grant_ref_t ref, bool readonly,
 	       what, ref, page ? page_to_pfn(page) : -1);
 }
 
+int gnttab_try_end_foreign_access(grant_ref_t ref)
+{
+	int ret = _gnttab_end_foreign_access_ref(ref, 0);
+
+	if (ret)
+		put_free_entry(ref);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(gnttab_try_end_foreign_access);
+
 void gnttab_end_foreign_access(grant_ref_t ref, int readonly,
 			       unsigned long page)
 {
-	if (gnttab_end_foreign_access_ref(ref, readonly)) {
-		put_free_entry(ref);
+	if (gnttab_try_end_foreign_access(ref)) {
 		if (page != 0)
 			put_page(virt_to_page(page));
 	} else
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index 0b1182a3cf412..dbbb00dd7fb02 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -97,10 +97,22 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly);
  * access has been ended, free the given page too.  Access will be ended
  * immediately iff the grant entry is not in use, otherwise it will happen
  * some time later.  page may be 0, in which case no freeing will occur.
+ * Note that the granted page might still be accessed (read or write) by the
+ * other side after gnttab_end_foreign_access() returns, so even if page was
+ * specified as 0 it is not allowed to just reuse the page for other
+ * purposes immediately.
  */
 void gnttab_end_foreign_access(grant_ref_t ref, int readonly,
 			       unsigned long page);
 
+/*
+ * End access through the given grant reference, iff the grant entry is
+ * no longer in use.  In case of success ending foreign access, the
+ * grant reference is deallocated.
+ * Return 1 if the grant entry was freed, 0 if it is still in use.
+ */
+int gnttab_try_end_foreign_access(grant_ref_t ref);
+
 int gnttab_grant_foreign_transfer(domid_t domid, unsigned long pfn);
 
 unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref);
-- 
GitLab


From 96219af4e504d0e96a231a0ba86062ec5b3af979 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:41 +0100
Subject: [PATCH 4417/4878] xen/blkfront: don't use
 gnttab_query_foreign_access() for mapped status
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Commit abf1fd5919d6238ee3bc5eb4a9b6c3947caa6638 upstream.

It isn't enough to check whether a grant is still being in use by
calling gnttab_query_foreign_access(), as a mapping could be realized
by the other side just after having called that function.

In case the call was done in preparation of revoking a grant it is
better to do so via gnttab_end_foreign_access_ref() and check the
success of that operation instead.

For the ring allocation use alloc_pages_exact() in order to avoid
high order pages in case of a multi-page ring.

If a grant wasn't unmapped by the backend without persistent grants
being used, set the device state to "error".

This is CVE-2022-23036 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/xen-blkfront.c | 63 +++++++++++++++++++++---------------
 1 file changed, 37 insertions(+), 26 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 22842d2938c28..47d4bb23d6f31 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1352,7 +1352,8 @@ free_shadow:
 			rinfo->ring_ref[i] = GRANT_INVALID_REF;
 		}
 	}
-	free_pages((unsigned long)rinfo->ring.sring, get_order(info->nr_ring_pages * XEN_PAGE_SIZE));
+	free_pages_exact(rinfo->ring.sring,
+			 info->nr_ring_pages * XEN_PAGE_SIZE);
 	rinfo->ring.sring = NULL;
 
 	if (rinfo->irq)
@@ -1436,9 +1437,15 @@ static int blkif_get_final_status(enum blk_req_status s1,
 	return BLKIF_RSP_OKAY;
 }
 
-static bool blkif_completion(unsigned long *id,
-			     struct blkfront_ring_info *rinfo,
-			     struct blkif_response *bret)
+/*
+ * Return values:
+ *  1 response processed.
+ *  0 missing further responses.
+ * -1 error while processing.
+ */
+static int blkif_completion(unsigned long *id,
+			    struct blkfront_ring_info *rinfo,
+			    struct blkif_response *bret)
 {
 	int i = 0;
 	struct scatterlist *sg;
@@ -1461,7 +1468,7 @@ static bool blkif_completion(unsigned long *id,
 
 		/* Wait the second response if not yet here. */
 		if (s2->status < REQ_DONE)
-			return false;
+			return 0;
 
 		bret->status = blkif_get_final_status(s->status,
 						      s2->status);
@@ -1512,42 +1519,43 @@ static bool blkif_completion(unsigned long *id,
 	}
 	/* Add the persistent grant into the list of free grants */
 	for (i = 0; i < num_grant; i++) {
-		if (gnttab_query_foreign_access(s->grants_used[i]->gref)) {
+		if (!gnttab_try_end_foreign_access(s->grants_used[i]->gref)) {
 			/*
 			 * If the grant is still mapped by the backend (the
 			 * backend has chosen to make this grant persistent)
 			 * we add it at the head of the list, so it will be
 			 * reused first.
 			 */
-			if (!info->feature_persistent)
-				pr_alert_ratelimited("backed has not unmapped grant: %u\n",
-						     s->grants_used[i]->gref);
+			if (!info->feature_persistent) {
+				pr_alert("backed has not unmapped grant: %u\n",
+					 s->grants_used[i]->gref);
+				return -1;
+			}
 			list_add(&s->grants_used[i]->node, &rinfo->grants);
 			rinfo->persistent_gnts_c++;
 		} else {
 			/*
-			 * If the grant is not mapped by the backend we end the
-			 * foreign access and add it to the tail of the list,
-			 * so it will not be picked again unless we run out of
-			 * persistent grants.
+			 * If the grant is not mapped by the backend we add it
+			 * to the tail of the list, so it will not be picked
+			 * again unless we run out of persistent grants.
 			 */
-			gnttab_end_foreign_access(s->grants_used[i]->gref, 0, 0UL);
 			s->grants_used[i]->gref = GRANT_INVALID_REF;
 			list_add_tail(&s->grants_used[i]->node, &rinfo->grants);
 		}
 	}
 	if (s->req.operation == BLKIF_OP_INDIRECT) {
 		for (i = 0; i < INDIRECT_GREFS(num_grant); i++) {
-			if (gnttab_query_foreign_access(s->indirect_grants[i]->gref)) {
-				if (!info->feature_persistent)
-					pr_alert_ratelimited("backed has not unmapped grant: %u\n",
-							     s->indirect_grants[i]->gref);
+			if (!gnttab_try_end_foreign_access(s->indirect_grants[i]->gref)) {
+				if (!info->feature_persistent) {
+					pr_alert("backed has not unmapped grant: %u\n",
+						 s->indirect_grants[i]->gref);
+					return -1;
+				}
 				list_add(&s->indirect_grants[i]->node, &rinfo->grants);
 				rinfo->persistent_gnts_c++;
 			} else {
 				struct page *indirect_page;
 
-				gnttab_end_foreign_access(s->indirect_grants[i]->gref, 0, 0UL);
 				/*
 				 * Add the used indirect page back to the list of
 				 * available pages for indirect grefs.
@@ -1562,7 +1570,7 @@ static bool blkif_completion(unsigned long *id,
 		}
 	}
 
-	return true;
+	return 1;
 }
 
 static irqreturn_t blkif_interrupt(int irq, void *dev_id)
@@ -1628,12 +1636,17 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id)
 		}
 
 		if (bret.operation != BLKIF_OP_DISCARD) {
+			int ret;
+
 			/*
 			 * We may need to wait for an extra response if the
 			 * I/O request is split in 2
 			 */
-			if (!blkif_completion(&id, rinfo, &bret))
+			ret = blkif_completion(&id, rinfo, &bret);
+			if (!ret)
 				continue;
+			if (unlikely(ret < 0))
+				goto err;
 		}
 
 		if (add_id_to_freelist(rinfo, id)) {
@@ -1740,8 +1753,7 @@ static int setup_blkring(struct xenbus_device *dev,
 	for (i = 0; i < info->nr_ring_pages; i++)
 		rinfo->ring_ref[i] = GRANT_INVALID_REF;
 
-	sring = (struct blkif_sring *)__get_free_pages(GFP_NOIO | __GFP_HIGH,
-						       get_order(ring_size));
+	sring = alloc_pages_exact(ring_size, GFP_NOIO);
 	if (!sring) {
 		xenbus_dev_fatal(dev, -ENOMEM, "allocating shared ring");
 		return -ENOMEM;
@@ -1751,7 +1763,7 @@ static int setup_blkring(struct xenbus_device *dev,
 
 	err = xenbus_grant_ring(dev, rinfo->ring.sring, info->nr_ring_pages, gref);
 	if (err < 0) {
-		free_pages((unsigned long)sring, get_order(ring_size));
+		free_pages_exact(sring, ring_size);
 		rinfo->ring.sring = NULL;
 		goto fail;
 	}
@@ -2729,11 +2741,10 @@ static void purge_persistent_grants(struct blkfront_info *info)
 		list_for_each_entry_safe(gnt_list_entry, tmp, &rinfo->grants,
 					 node) {
 			if (gnt_list_entry->gref == GRANT_INVALID_REF ||
-			    gnttab_query_foreign_access(gnt_list_entry->gref))
+			    !gnttab_try_end_foreign_access(gnt_list_entry->gref))
 				continue;
 
 			list_del(&gnt_list_entry->node);
-			gnttab_end_foreign_access(gnt_list_entry->gref, 0, 0UL);
 			rinfo->persistent_gnts_c--;
 			gnt_list_entry->gref = GRANT_INVALID_REF;
 			list_add_tail(&gnt_list_entry->node, &rinfo->grants);
-- 
GitLab


From f6690dd9446a2a4bd9b024f00f71dd827a98317f Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:41 +0100
Subject: [PATCH 4418/4878] xen/netfront: don't use
 gnttab_query_foreign_access() for mapped status

Commit 31185df7e2b1d2fa1de4900247a12d7b9c7087eb upstream.

It isn't enough to check whether a grant is still being in use by
calling gnttab_query_foreign_access(), as a mapping could be realized
by the other side just after having called that function.

In case the call was done in preparation of revoking a grant it is
better to do so via gnttab_end_foreign_access_ref() and check the
success of that operation instead.

This is CVE-2022-23037 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 7ed8872d08c60..51aa19d30881c 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -424,14 +424,12 @@ static bool xennet_tx_buf_gc(struct netfront_queue *queue)
 			queue->tx_link[id] = TX_LINK_NONE;
 			skb = queue->tx_skbs[id];
 			queue->tx_skbs[id] = NULL;
-			if (unlikely(gnttab_query_foreign_access(
-				queue->grant_tx_ref[id]) != 0)) {
+			if (unlikely(!gnttab_end_foreign_access_ref(
+				queue->grant_tx_ref[id], GNTMAP_readonly))) {
 				dev_alert(dev,
 					  "Grant still in use by backend domain\n");
 				goto err;
 			}
-			gnttab_end_foreign_access_ref(
-				queue->grant_tx_ref[id], GNTMAP_readonly);
 			gnttab_release_grant_reference(
 				&queue->gref_tx_head, queue->grant_tx_ref[id]);
 			queue->grant_tx_ref[id] = GRANT_INVALID_REF;
-- 
GitLab


From 3047255182774266950b22acc29c22a2d76e859e Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:42 +0100
Subject: [PATCH 4419/4878] xen/scsifront: don't use
 gnttab_query_foreign_access() for mapped status

Commit 33172ab50a53578a95691310f49567c9266968b0 upstream.

It isn't enough to check whether a grant is still being in use by
calling gnttab_query_foreign_access(), as a mapping could be realized
by the other side just after having called that function.

In case the call was done in preparation of revoking a grant it is
better to do so via gnttab_try_end_foreign_access() and check the
success of that operation instead.

This is CVE-2022-23038 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/xen-scsifront.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 259fc248d06cf..a25c9386fdf78 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -233,12 +233,11 @@ static void scsifront_gnttab_done(struct vscsifrnt_info *info,
 		return;
 
 	for (i = 0; i < shadow->nr_grants; i++) {
-		if (unlikely(gnttab_query_foreign_access(shadow->gref[i]))) {
+		if (unlikely(!gnttab_try_end_foreign_access(shadow->gref[i]))) {
 			shost_printk(KERN_ALERT, info->host, KBUILD_MODNAME
 				     "grant still in use by backend\n");
 			BUG();
 		}
-		gnttab_end_foreign_access(shadow->gref[i], 0, 0UL);
 	}
 
 	kfree(shadow->sg);
-- 
GitLab


From 5f36ae75b847e7f87e4144602f418a624ca074b7 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:42 +0100
Subject: [PATCH 4420/4878] xen/gntalloc: don't use
 gnttab_query_foreign_access()

Commit d3b6372c5881cb54925212abb62c521df8ba4809 upstream.

Using gnttab_query_foreign_access() is unsafe, as it is racy by design.

The use case in the gntalloc driver is not needed at all. While at it
replace the call of gnttab_end_foreign_access_ref() with a call of
gnttab_end_foreign_access(), which is what is really wanted there. In
case the grant wasn't used due to an allocation failure, just free the
grant via gnttab_free_grant_reference().

This is CVE-2022-23039 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/gntalloc.c | 25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index 3fa40c723e8e9..edb0acd0b8323 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -169,20 +169,14 @@ undo:
 		__del_gref(gref);
 	}
 
-	/* It's possible for the target domain to map the just-allocated grant
-	 * references by blindly guessing their IDs; if this is done, then
-	 * __del_gref will leave them in the queue_gref list. They need to be
-	 * added to the global list so that we can free them when they are no
-	 * longer referenced.
-	 */
-	if (unlikely(!list_empty(&queue_gref)))
-		list_splice_tail(&queue_gref, &gref_list);
 	mutex_unlock(&gref_mutex);
 	return rc;
 }
 
 static void __del_gref(struct gntalloc_gref *gref)
 {
+	unsigned long addr;
+
 	if (gref->notify.flags & UNMAP_NOTIFY_CLEAR_BYTE) {
 		uint8_t *tmp = kmap(gref->page);
 		tmp[gref->notify.pgoff] = 0;
@@ -196,21 +190,16 @@ static void __del_gref(struct gntalloc_gref *gref)
 	gref->notify.flags = 0;
 
 	if (gref->gref_id) {
-		if (gnttab_query_foreign_access(gref->gref_id))
-			return;
-
-		if (!gnttab_end_foreign_access_ref(gref->gref_id, 0))
-			return;
-
-		gnttab_free_grant_reference(gref->gref_id);
+		if (gref->page) {
+			addr = (unsigned long)page_to_virt(gref->page);
+			gnttab_end_foreign_access(gref->gref_id, 0, addr);
+		} else
+			gnttab_free_grant_reference(gref->gref_id);
 	}
 
 	gref_size--;
 	list_del(&gref->next_gref);
 
-	if (gref->page)
-		__free_page(gref->page);
-
 	kfree(gref);
 }
 
-- 
GitLab


From 17f01b7206af1916111fa7bcf38aec084ae4b217 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:42 +0100
Subject: [PATCH 4421/4878] xen: remove gnttab_query_foreign_access()

Commit 1dbd11ca75fe664d3e54607547771d021f531f59 upstream.

Remove gnttab_query_foreign_access(), as it is unused and unsafe to
use.

All previous use cases assumed a grant would not be in use after
gnttab_query_foreign_access() returned 0. This information is useless
in best case, as it only refers to a situation in the past, which could
have changed already.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/grant-table.c | 25 -------------------------
 include/xen/grant_table.h |  2 --
 2 files changed, 27 deletions(-)

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 1b82e7a3722a3..e6548910e79ff 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -133,13 +133,6 @@ struct gnttab_ops {
 	 * return the frame.
 	 */
 	unsigned long (*end_foreign_transfer_ref)(grant_ref_t ref);
-	/*
-	 * Query the status of a grant entry. Ref parameter is reference of
-	 * queried grant entry, return value is the status of queried entry.
-	 * Detailed status(writing/reading) can be gotten from the return value
-	 * by bit operations.
-	 */
-	int (*query_foreign_access)(grant_ref_t ref);
 };
 
 struct unmap_refs_callback_data {
@@ -284,22 +277,6 @@ int gnttab_grant_foreign_access(domid_t domid, unsigned long frame,
 }
 EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access);
 
-static int gnttab_query_foreign_access_v1(grant_ref_t ref)
-{
-	return gnttab_shared.v1[ref].flags & (GTF_reading|GTF_writing);
-}
-
-static int gnttab_query_foreign_access_v2(grant_ref_t ref)
-{
-	return grstatus[ref] & (GTF_reading|GTF_writing);
-}
-
-int gnttab_query_foreign_access(grant_ref_t ref)
-{
-	return gnttab_interface->query_foreign_access(ref);
-}
-EXPORT_SYMBOL_GPL(gnttab_query_foreign_access);
-
 static int gnttab_end_foreign_access_ref_v1(grant_ref_t ref, int readonly)
 {
 	u16 flags, nflags;
@@ -1427,7 +1404,6 @@ static const struct gnttab_ops gnttab_v1_ops = {
 	.update_entry			= gnttab_update_entry_v1,
 	.end_foreign_access_ref		= gnttab_end_foreign_access_ref_v1,
 	.end_foreign_transfer_ref	= gnttab_end_foreign_transfer_ref_v1,
-	.query_foreign_access		= gnttab_query_foreign_access_v1,
 };
 
 static const struct gnttab_ops gnttab_v2_ops = {
@@ -1439,7 +1415,6 @@ static const struct gnttab_ops gnttab_v2_ops = {
 	.update_entry			= gnttab_update_entry_v2,
 	.end_foreign_access_ref		= gnttab_end_foreign_access_ref_v2,
 	.end_foreign_transfer_ref	= gnttab_end_foreign_transfer_ref_v2,
-	.query_foreign_access		= gnttab_query_foreign_access_v2,
 };
 
 static bool gnttab_need_v2(void)
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index dbbb00dd7fb02..ddaa586ba418f 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -118,8 +118,6 @@ int gnttab_grant_foreign_transfer(domid_t domid, unsigned long pfn);
 unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref);
 unsigned long gnttab_end_foreign_transfer(grant_ref_t ref);
 
-int gnttab_query_foreign_access(grant_ref_t ref);
-
 /*
  * operations on reserved batches of grant references
  */
-- 
GitLab


From 8357d75bfdb85ea63253cf369f405830c7b13d78 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:42 +0100
Subject: [PATCH 4422/4878] xen/9p: use alloc/free_pages_exact()

Commit 5cadd4bb1d7fc9ab201ac14620d1a478357e4ebd upstream.

Instead of __get_free_pages() and free_pages() use alloc_pages_exact()
and free_pages_exact(). This is in preparation of a change of
gnttab_end_foreign_access() which will prohibit use of high-order
pages.

By using the local variable "order" instead of ring->intf->ring_order
in the error path of xen_9pfs_front_alloc_dataring() another bug is
fixed, as the error path can be entered before ring->intf->ring_order
is being set.

By using alloc_pages_exact() the size in bytes is specified for the
allocation, which fixes another bug for the case of
order < (PAGE_SHIFT - XEN_PAGE_SHIFT).

This is part of CVE-2022-23041 / XSA-396.

Reported-by: Simon Gaiser <simon@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/9p/trans_xen.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/net/9p/trans_xen.c b/net/9p/trans_xen.c
index 3ec1a51a6944e..432ac5a16f2e0 100644
--- a/net/9p/trans_xen.c
+++ b/net/9p/trans_xen.c
@@ -304,9 +304,9 @@ static void xen_9pfs_front_free(struct xen_9pfs_front_priv *priv)
 				ref = priv->rings[i].intf->ref[j];
 				gnttab_end_foreign_access(ref, 0, 0);
 			}
-			free_pages((unsigned long)priv->rings[i].data.in,
-				   priv->rings[i].intf->ring_order -
-				   (PAGE_SHIFT - XEN_PAGE_SHIFT));
+			free_pages_exact(priv->rings[i].data.in,
+				   1UL << (priv->rings[i].intf->ring_order +
+					   XEN_PAGE_SHIFT));
 		}
 		gnttab_end_foreign_access(priv->rings[i].ref, 0, 0);
 		free_page((unsigned long)priv->rings[i].intf);
@@ -345,8 +345,8 @@ static int xen_9pfs_front_alloc_dataring(struct xenbus_device *dev,
 	if (ret < 0)
 		goto out;
 	ring->ref = ret;
-	bytes = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-			order - (PAGE_SHIFT - XEN_PAGE_SHIFT));
+	bytes = alloc_pages_exact(1UL << (order + XEN_PAGE_SHIFT),
+				  GFP_KERNEL | __GFP_ZERO);
 	if (!bytes) {
 		ret = -ENOMEM;
 		goto out;
@@ -377,9 +377,7 @@ out:
 	if (bytes) {
 		for (i--; i >= 0; i--)
 			gnttab_end_foreign_access(ring->intf->ref[i], 0, 0);
-		free_pages((unsigned long)bytes,
-			   ring->intf->ring_order -
-			   (PAGE_SHIFT - XEN_PAGE_SHIFT));
+		free_pages_exact(bytes, 1UL << (order + XEN_PAGE_SHIFT));
 	}
 	gnttab_end_foreign_access(ring->ref, 0, 0);
 	free_page((unsigned long)ring->intf);
-- 
GitLab


From c4b16486d6023f6365a4f8671351961e97428f2d Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:43 +0100
Subject: [PATCH 4423/4878] xen/pvcalls: use alloc/free_pages_exact()

Commit b0576cc9c6b843d99c6982888d59a56209341888 upstream.

Instead of __get_free_pages() and free_pages() use alloc_pages_exact()
and free_pages_exact(). This is in preparation of a change of
gnttab_end_foreign_access() which will prohibit use of high-order
pages.

This is part of CVE-2022-23041 / XSA-396.

Reported-by: Simon Gaiser <simon@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/pvcalls-front.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 7984645b59563..bbe337dc296e3 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -337,8 +337,8 @@ static void free_active_ring(struct sock_mapping *map)
 	if (!map->active.ring)
 		return;
 
-	free_pages((unsigned long)map->active.data.in,
-			map->active.ring->ring_order);
+	free_pages_exact(map->active.data.in,
+			 PAGE_SIZE << map->active.ring->ring_order);
 	free_page((unsigned long)map->active.ring);
 }
 
@@ -352,8 +352,8 @@ static int alloc_active_ring(struct sock_mapping *map)
 		goto out;
 
 	map->active.ring->ring_order = PVCALLS_RING_ORDER;
-	bytes = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-					PVCALLS_RING_ORDER);
+	bytes = alloc_pages_exact(PAGE_SIZE << PVCALLS_RING_ORDER,
+				  GFP_KERNEL | __GFP_ZERO);
 	if (!bytes)
 		goto out;
 
-- 
GitLab


From 39c00d09286c67567cdf23ebc8e00e47722ef769 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:43 +0100
Subject: [PATCH 4424/4878] xen/gnttab: fix gnttab_end_foreign_access() without
 page specified

Commit 42baefac638f06314298087394b982ead9ec444b upstream.

gnttab_end_foreign_access() is used to free a grant reference and
optionally to free the associated page. In case the grant is still in
use by the other side processing is being deferred. This leads to a
problem in case no page to be freed is specified by the caller: the
caller doesn't know that the page is still mapped by the other side
and thus should not be used for other purposes.

The correct way to handle this situation is to take an additional
reference to the granted page in case handling is being deferred and
to drop that reference when the grant reference could be freed
finally.

This requires that there are no users of gnttab_end_foreign_access()
left directly repurposing the granted page after the call, as this
might result in clobbered data or information leaks via the not yet
freed grant reference.

This is part of CVE-2022-23041 / XSA-396.

Reported-by: Simon Gaiser <simon@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/grant-table.c | 36 +++++++++++++++++++++++++++++-------
 include/xen/grant_table.h |  7 ++++++-
 2 files changed, 35 insertions(+), 8 deletions(-)

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index e6548910e79ff..5c83d41766c85 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -133,6 +133,10 @@ struct gnttab_ops {
 	 * return the frame.
 	 */
 	unsigned long (*end_foreign_transfer_ref)(grant_ref_t ref);
+	/*
+	 * Read the frame number related to a given grant reference.
+	 */
+	unsigned long (*read_frame)(grant_ref_t ref);
 };
 
 struct unmap_refs_callback_data {
@@ -330,6 +334,16 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly)
 }
 EXPORT_SYMBOL_GPL(gnttab_end_foreign_access_ref);
 
+static unsigned long gnttab_read_frame_v1(grant_ref_t ref)
+{
+	return gnttab_shared.v1[ref].frame;
+}
+
+static unsigned long gnttab_read_frame_v2(grant_ref_t ref)
+{
+	return gnttab_shared.v2[ref].full_page.frame;
+}
+
 struct deferred_entry {
 	struct list_head list;
 	grant_ref_t ref;
@@ -359,12 +373,9 @@ static void gnttab_handle_deferred(struct timer_list *unused)
 		spin_unlock_irqrestore(&gnttab_list_lock, flags);
 		if (_gnttab_end_foreign_access_ref(entry->ref, entry->ro)) {
 			put_free_entry(entry->ref);
-			if (entry->page) {
-				pr_debug("freeing g.e. %#x (pfn %#lx)\n",
-					 entry->ref, page_to_pfn(entry->page));
-				put_page(entry->page);
-			} else
-				pr_info("freeing g.e. %#x\n", entry->ref);
+			pr_debug("freeing g.e. %#x (pfn %#lx)\n",
+				 entry->ref, page_to_pfn(entry->page));
+			put_page(entry->page);
 			kfree(entry);
 			entry = NULL;
 		} else {
@@ -389,9 +400,18 @@ static void gnttab_handle_deferred(struct timer_list *unused)
 static void gnttab_add_deferred(grant_ref_t ref, bool readonly,
 				struct page *page)
 {
-	struct deferred_entry *entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
+	struct deferred_entry *entry;
+	gfp_t gfp = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL;
 	const char *what = KERN_WARNING "leaking";
 
+	entry = kmalloc(sizeof(*entry), gfp);
+	if (!page) {
+		unsigned long gfn = gnttab_interface->read_frame(ref);
+
+		page = pfn_to_page(gfn_to_pfn(gfn));
+		get_page(page);
+	}
+
 	if (entry) {
 		unsigned long flags;
 
@@ -1404,6 +1424,7 @@ static const struct gnttab_ops gnttab_v1_ops = {
 	.update_entry			= gnttab_update_entry_v1,
 	.end_foreign_access_ref		= gnttab_end_foreign_access_ref_v1,
 	.end_foreign_transfer_ref	= gnttab_end_foreign_transfer_ref_v1,
+	.read_frame			= gnttab_read_frame_v1,
 };
 
 static const struct gnttab_ops gnttab_v2_ops = {
@@ -1415,6 +1436,7 @@ static const struct gnttab_ops gnttab_v2_ops = {
 	.update_entry			= gnttab_update_entry_v2,
 	.end_foreign_access_ref		= gnttab_end_foreign_access_ref_v2,
 	.end_foreign_transfer_ref	= gnttab_end_foreign_transfer_ref_v2,
+	.read_frame			= gnttab_read_frame_v2,
 };
 
 static bool gnttab_need_v2(void)
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index ddaa586ba418f..57b4ae6a4a186 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -100,7 +100,12 @@ int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly);
  * Note that the granted page might still be accessed (read or write) by the
  * other side after gnttab_end_foreign_access() returns, so even if page was
  * specified as 0 it is not allowed to just reuse the page for other
- * purposes immediately.
+ * purposes immediately. gnttab_end_foreign_access() will take an additional
+ * reference to the granted page in this case, which is dropped only after
+ * the grant is no longer in use.
+ * This requires that multi page allocations for areas subject to
+ * gnttab_end_foreign_access() are done via alloc_pages_exact() (and freeing
+ * via free_pages_exact()) in order to avoid high order pages.
  */
 void gnttab_end_foreign_access(grant_ref_t ref, int readonly,
 			       unsigned long page);
-- 
GitLab


From 206c8e271ba2630f1d809123945d9c428f93b0f0 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Fri, 25 Feb 2022 16:05:43 +0100
Subject: [PATCH 4425/4878] xen/netfront: react properly to failing
 gnttab_end_foreign_access_ref()

Commit 66e3531b33ee51dad17c463b4d9c9f52e341503d upstream.

When calling gnttab_end_foreign_access_ref() the returned value must
be tested and the reaction to that value should be appropriate.

In case of failure in xennet_get_responses() the reaction should not be
to crash the system, but to disable the network device.

The calls in setup_netfront() can be replaced by calls of
gnttab_end_foreign_access(). While at it avoid double free of ring
pages and grant references via xennet_disconnect_backend() in this case.

This is CVE-2022-23042 / part of XSA-396.

Reported-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netfront.c | 48 ++++++++++++++++++++++++--------------
 1 file changed, 31 insertions(+), 17 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 51aa19d30881c..1a69b5246133b 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -990,7 +990,6 @@ static int xennet_get_responses(struct netfront_queue *queue,
 	struct device *dev = &queue->info->netdev->dev;
 	struct bpf_prog *xdp_prog;
 	struct xdp_buff xdp;
-	unsigned long ret;
 	int slots = 1;
 	int err = 0;
 	u32 verdict;
@@ -1032,8 +1031,13 @@ static int xennet_get_responses(struct netfront_queue *queue,
 			goto next;
 		}
 
-		ret = gnttab_end_foreign_access_ref(ref, 0);
-		BUG_ON(!ret);
+		if (!gnttab_end_foreign_access_ref(ref, 0)) {
+			dev_alert(dev,
+				  "Grant still in use by backend domain\n");
+			queue->info->broken = true;
+			dev_alert(dev, "Disabled for further use\n");
+			return -EINVAL;
+		}
 
 		gnttab_release_grant_reference(&queue->gref_rx_head, ref);
 
@@ -1254,6 +1258,10 @@ static int xennet_poll(struct napi_struct *napi, int budget)
 					   &need_xdp_flush);
 
 		if (unlikely(err)) {
+			if (queue->info->broken) {
+				spin_unlock(&queue->rx_lock);
+				return 0;
+			}
 err:
 			while ((skb = __skb_dequeue(&tmpq)))
 				__skb_queue_tail(&errq, skb);
@@ -1918,7 +1926,7 @@ static int setup_netfront(struct xenbus_device *dev,
 			struct netfront_queue *queue, unsigned int feature_split_evtchn)
 {
 	struct xen_netif_tx_sring *txs;
-	struct xen_netif_rx_sring *rxs;
+	struct xen_netif_rx_sring *rxs = NULL;
 	grant_ref_t gref;
 	int err;
 
@@ -1938,21 +1946,21 @@ static int setup_netfront(struct xenbus_device *dev,
 
 	err = xenbus_grant_ring(dev, txs, 1, &gref);
 	if (err < 0)
-		goto grant_tx_ring_fail;
+		goto fail;
 	queue->tx_ring_ref = gref;
 
 	rxs = (struct xen_netif_rx_sring *)get_zeroed_page(GFP_NOIO | __GFP_HIGH);
 	if (!rxs) {
 		err = -ENOMEM;
 		xenbus_dev_fatal(dev, err, "allocating rx ring page");
-		goto alloc_rx_ring_fail;
+		goto fail;
 	}
 	SHARED_RING_INIT(rxs);
 	FRONT_RING_INIT(&queue->rx, rxs, XEN_PAGE_SIZE);
 
 	err = xenbus_grant_ring(dev, rxs, 1, &gref);
 	if (err < 0)
-		goto grant_rx_ring_fail;
+		goto fail;
 	queue->rx_ring_ref = gref;
 
 	if (feature_split_evtchn)
@@ -1965,22 +1973,28 @@ static int setup_netfront(struct xenbus_device *dev,
 		err = setup_netfront_single(queue);
 
 	if (err)
-		goto alloc_evtchn_fail;
+		goto fail;
 
 	return 0;
 
 	/* If we fail to setup netfront, it is safe to just revoke access to
 	 * granted pages because backend is not accessing it at this point.
 	 */
-alloc_evtchn_fail:
-	gnttab_end_foreign_access_ref(queue->rx_ring_ref, 0);
-grant_rx_ring_fail:
-	free_page((unsigned long)rxs);
-alloc_rx_ring_fail:
-	gnttab_end_foreign_access_ref(queue->tx_ring_ref, 0);
-grant_tx_ring_fail:
-	free_page((unsigned long)txs);
-fail:
+ fail:
+	if (queue->rx_ring_ref != GRANT_INVALID_REF) {
+		gnttab_end_foreign_access(queue->rx_ring_ref, 0,
+					  (unsigned long)rxs);
+		queue->rx_ring_ref = GRANT_INVALID_REF;
+	} else {
+		free_page((unsigned long)rxs);
+	}
+	if (queue->tx_ring_ref != GRANT_INVALID_REF) {
+		gnttab_end_foreign_access(queue->tx_ring_ref, 0,
+					  (unsigned long)txs);
+		queue->tx_ring_ref = GRANT_INVALID_REF;
+	} else {
+		free_page((unsigned long)txs);
+	}
 	return err;
 }
 
-- 
GitLab


From 561e91e5fee894ebc17de63665d440e787b0f51a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 10 Mar 2022 14:47:12 +0100
Subject: [PATCH 4426/4878] Revert "ACPI: PM: s2idle: Cancel wakeup before
 dispatching EC GPE"

This reverts commit 48e413087de1bc688ad732839efc0a5627f38d34 which is
commit dc0075ba7f387fe4c48a8c674b11ab6f374a6acc upstream.

It's been reported to cause problems with a number of Fedora and Arch
Linux users, so drop it for now until that is resolved.

Link: https://lore.kernel.org/r/CAJZ5v0gE52NT=4kN4MkhV3Gx=M5CeMGVHOF0jgTXDb5WwAMs_Q@mail.gmail.com
Link: https://lore.kernel.org/r/31b9d1cd-6a67-218b-4ada-12f72e6f00dc@redhat.com
Reported-by: Hans de Goede <hdegoede@redhat.com>
Reported-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Justin Forbes <jmforbes@linuxtx.org>
Cc: Mark Pearson <markpearson@lenovo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/ec.c    | 10 ----------
 drivers/acpi/sleep.c | 14 ++++++++++----
 2 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 8347eaee679c8..3f2e5ea9ab6b7 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -2064,16 +2064,6 @@ bool acpi_ec_dispatch_gpe(void)
 	if (acpi_any_gpe_status_set(first_ec->gpe))
 		return true;
 
-	/*
-	 * Cancel the SCI wakeup and process all pending events in case there
-	 * are any wakeup ones in there.
-	 *
-	 * Note that if any non-EC GPEs are active at this point, the SCI will
-	 * retrigger after the rearming in acpi_s2idle_wake(), so no events
-	 * should be missed by canceling the wakeup here.
-	 */
-	pm_system_cancel_wakeup();
-
 	/*
 	 * Dispatch the EC GPE in-band, but do not report wakeup in any case
 	 * to allow the caller to process events properly after that.
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index e2614ea820bb8..503935b1deeb1 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -1012,15 +1012,21 @@ static bool acpi_s2idle_wake(void)
 			return true;
 		}
 
-		/*
-		 * Check non-EC GPE wakeups and if there are none, cancel the
-		 * SCI-related wakeup and dispatch the EC GPE.
-		 */
+		/* Check non-EC GPE wakeups and dispatch the EC GPE. */
 		if (acpi_ec_dispatch_gpe()) {
 			pm_pr_dbg("ACPI non-EC GPE wakeup\n");
 			return true;
 		}
 
+		/*
+		 * Cancel the SCI wakeup and process all pending events in case
+		 * there are any wakeup ones in there.
+		 *
+		 * Note that if any non-EC GPEs are active at this point, the
+		 * SCI will retrigger after the rearming below, so no events
+		 * should be missed by canceling the wakeup here.
+		 */
+		pm_system_cancel_wakeup();
 		acpi_os_wait_events_complete();
 
 		/*
-- 
GitLab


From 67c781d938b850db236f6eb0bccc9737c29df57c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 11 Mar 2022 12:11:55 +0100
Subject: [PATCH 4427/4878] Linux 5.10.105

Link: https://lore.kernel.org/r/20220309155859.239810747@linuxfoundation.org
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Link: https://lore.kernel.org/r/20220310140812.869208747@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>                              =
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 6e6efe5516872..ea665736db040 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 104
+SUBLEVEL = 105
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 7653831e95f3741a31b1664aef2be0709322b3f1 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 3 Feb 2022 13:57:57 +0000
Subject: [PATCH 4428/4878] ANDROID: KVM: arm64: Add .hyp.data section

The hypervisor has not needed its own .data section because all globals
were either .rodata or .bss. Linked lists are initialized with the head
pointing to itself. To avoid having to work around this by initializing
at runtime, add a .hyp.data section.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I7a56dc4c93e05bbef53c66837164d17c6103b6b8
---
 arch/arm64/include/asm/sections.h |  1 +
 arch/arm64/kernel/image-vars.h    |  2 ++
 arch/arm64/kernel/vmlinux.lds.S   | 18 +++++++++++++++---
 arch/arm64/kvm/arm.c              |  7 +++++++
 arch/arm64/kvm/hyp/nvhe/hyp.lds.S |  2 ++
 arch/arm64/kvm/hyp/nvhe/setup.c   |  4 ++++
 6 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
index e4ad9db53af1d..ddaa658d0046e 100644
--- a/arch/arm64/include/asm/sections.h
+++ b/arch/arm64/include/asm/sections.h
@@ -11,6 +11,7 @@ extern char __alt_instructions[], __alt_instructions_end[];
 extern char __hibernate_exit_text_start[], __hibernate_exit_text_end[];
 extern char __hyp_idmap_text_start[], __hyp_idmap_text_end[];
 extern char __hyp_text_start[], __hyp_text_end[];
+extern char __hyp_data_start[], __hyp_data_end[];
 extern char __hyp_rodata_start[], __hyp_rodata_end[];
 extern char __hyp_reloc_begin[], __hyp_reloc_end[];
 extern char __hyp_bss_start[], __hyp_bss_end[];
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index e474589e9a9e9..27a4507fe8126 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -125,6 +125,8 @@ KVM_NVHE_ALIAS(__hyp_text_start);
 KVM_NVHE_ALIAS(__hyp_text_end);
 KVM_NVHE_ALIAS(__hyp_bss_start);
 KVM_NVHE_ALIAS(__hyp_bss_end);
+KVM_NVHE_ALIAS(__hyp_data_start);
+KVM_NVHE_ALIAS(__hyp_data_end);
 KVM_NVHE_ALIAS(__hyp_rodata_start);
 KVM_NVHE_ALIAS(__hyp_rodata_end);
 
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index b00961be177d0..8c452df6d870f 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -13,7 +13,7 @@
 	*(__kvm_ex_table)					\
 	__stop___kvm_ex_table = .;
 
-#define HYPERVISOR_DATA_SECTIONS				\
+#define HYPERVISOR_RODATA_SECTIONS				\
 	HYP_SECTION_NAME(.rodata) : {				\
 		. = ALIGN(PAGE_SIZE);				\
 		__hyp_rodata_start = .;				\
@@ -23,6 +23,15 @@
 		__hyp_rodata_end = .;				\
 	}
 
+#define HYPERVISOR_DATA_SECTION					\
+	HYP_SECTION_NAME(.data) : {				\
+		. = ALIGN(PAGE_SIZE);				\
+		__hyp_data_start = .;				\
+		*(HYP_SECTION_NAME(.data))			\
+		. = ALIGN(PAGE_SIZE);				\
+		__hyp_data_end = .;				\
+	}
+
 #define HYPERVISOR_PERCPU_SECTION				\
 	. = ALIGN(PAGE_SIZE);					\
 	HYP_SECTION_NAME(.data..percpu) : {			\
@@ -51,7 +60,8 @@
 #define SBSS_ALIGN			PAGE_SIZE
 #else /* CONFIG_KVM */
 #define HYPERVISOR_EXTABLE
-#define HYPERVISOR_DATA_SECTIONS
+#define HYPERVISOR_RODATA_SECTIONS
+#define HYPERVISOR_DATA_SECTION
 #define HYPERVISOR_PERCPU_SECTION
 #define HYPERVISOR_RELOC_SECTION
 #define SBSS_ALIGN			0
@@ -181,7 +191,7 @@ SECTIONS
 	/* everything from this point to __init_begin will be marked RO NX */
 	RO_DATA(PAGE_SIZE)
 
-	HYPERVISOR_DATA_SECTIONS
+	HYPERVISOR_RODATA_SECTIONS
 
 	idmap_pg_dir = .;
 	. += IDMAP_DIR_SIZE;
@@ -262,6 +272,8 @@ SECTIONS
 	_sdata = .;
 	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
 
+	HYPERVISOR_DATA_SECTION
+
 	/*
 	 * Data written with the MMU off but read with the MMU on requires
 	 * cache lines to be invalidated, discarding up to a Cache Writeback
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 1cc9ce212c1ed..2eebcc682aa43 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -2061,6 +2061,13 @@ static int init_hyp_mode(void)
 		goto out_err;
 	}
 
+	err = create_hyp_mappings(kvm_ksym_ref(__hyp_data_start),
+				  kvm_ksym_ref(__hyp_data_end), PAGE_HYP);
+	if (err) {
+		kvm_err("Cannot map .hyp.data section\n");
+		goto out_err;
+	}
+
 	err = create_hyp_mappings(kvm_ksym_ref(__hyp_rodata_start),
 				  kvm_ksym_ref(__hyp_rodata_end), PAGE_HYP_RO);
 	if (err) {
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
index f4562f417d3fc..d724f6d69302a 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp.lds.S
@@ -25,5 +25,7 @@ SECTIONS {
 	BEGIN_HYP_SECTION(.data..percpu)
 		PERCPU_INPUT(L1_CACHE_BYTES)
 	END_HYP_SECTION
+
 	HYP_SECTION(.bss)
+	HYP_SECTION(.data)
 }
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 60c611cd29cdf..0d9950735e5d8 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -101,6 +101,10 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
 	if (ret)
 		return ret;
 
+	ret = pkvm_create_mappings(__hyp_data_start, __hyp_data_end, PAGE_HYP);
+	if (ret)
+		return ret;
+
 	ret = pkvm_create_mappings(__hyp_rodata_start, __hyp_rodata_end, PAGE_HYP_RO);
 	if (ret)
 		return ret;
-- 
GitLab


From 1d9ae14c927282663397065a9c58adf399e7792d Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 23 Feb 2022 19:52:31 +0000
Subject: [PATCH 4429/4878] ANDROID: KVM: arm64: iommu: Driver initialization
 hypcall

Add '__pkvm_iommu_driver_init' hypcall and 'struct pkvm_iommu_ops' with
an 'init' callback implemented by an EL2 driver. Driver-specific data
can be passed to 'init' from the host. The memory is pinned while
the callback processed it.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I7cfe51de553e07083747467e1e3ca8bc51737035
---
 arch/arm64/include/asm/kvm_asm.h        |   1 +
 arch/arm64/include/asm/kvm_host.h       |   6 ++
 arch/arm64/kvm/Makefile                 |   2 +-
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  13 +++
 arch/arm64/kvm/hyp/nvhe/Makefile        |   2 +-
 arch/arm64/kvm/hyp/nvhe/hyp-main.c      |  10 +++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 103 ++++++++++++++++++++++++
 arch/arm64/kvm/iommu.c                  |  12 +++
 8 files changed, 147 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm64/kvm/hyp/nvhe/iommu.c
 create mode 100644 arch/arm64/kvm/iommu.c

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index acfabb81d494f..2f730d0b845ec 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -79,6 +79,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_load,
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_put,
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_sync_state,
+	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_driver_init,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index bf6c16f6474a8..e76792ff2a2ba 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -387,6 +387,12 @@ int kvm_s2mpu_init(void);
 static inline int kvm_s2mpu_init(void) { return -ENODEV; }
 #endif
 
+enum pkvm_iommu_driver_id {
+	PKVM_IOMMU_NR_DRIVERS,
+};
+
+int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id drv_id, void *data, size_t size);
+
 struct vcpu_reset_state {
 	unsigned long	pc;
 	unsigned long	r0;
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 42ecb28943e7f..fd09abbe25a79 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -11,7 +11,7 @@ obj-$(CONFIG_KVM) += kvm.o
 obj-$(CONFIG_KVM) += hyp/ iommu/
 
 kvm-y := $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/eventfd.o \
-	 $(KVM)/vfio.o $(KVM)/irqchip.o \
+	 $(KVM)/vfio.o $(KVM)/irqchip.o iommu.o \
 	 arm.o mmu.o mmio.o psci.o perf.o hypercalls.o pvtime.o \
 	 inject_fault.o va_layout.o handle_exit.o \
 	 guest.o debug.o reset.o sys_regs.o \
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 78f88dbc88562..7f2d2337c0e2e 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -7,6 +7,19 @@
 
 #include <nvhe/mem_protect.h>
 
+struct pkvm_iommu_ops {
+	/*
+	 * Global driver initialization called before devices are registered.
+	 * Driver-specific arguments are passed in a buffer shared by the host.
+	 * The buffer memory has been pinned in EL2 but host retains R/W access.
+	 * Extra care must be taken when reading from it to avoid TOCTOU bugs.
+	 * Driver initialization lock held during callback.
+	 */
+	int (*init)(void *data, size_t size);
+};
+
+int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size);
+
 struct kvm_iommu_ops {
 	int (*init)(void);
 	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 56aad42b19283..5145c238ff4d6 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -14,7 +14,7 @@ lib-objs := $(addprefix ../../../lib/, $(lib-objs))
 
 obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \
 	 hyp-main.o hyp-smp.o psci-relay.o early_alloc.o stub.o page_alloc.o \
-	 cache.o ffa.o setup.o mm.o mem_protect.o sys_regs.o pkvm.o
+	 cache.o ffa.o setup.o mm.o mem_protect.o sys_regs.o pkvm.o iommu.o
 obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
 	 ../fpsimd.o ../hyp-entry.o ../exception.o ../pgtable.o
 obj-y += $(lib-objs)
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 926a7a9915e7e..a4924649b6d74 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -979,6 +979,15 @@ static void handle___pkvm_teardown_shadow(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_teardown_shadow(shadow_handle);
 }
 
+static void handle___pkvm_iommu_driver_init(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(enum pkvm_iommu_driver_id, id, host_ctxt, 1);
+	DECLARE_REG(void *, data, host_ctxt, 2);
+	DECLARE_REG(size_t, size, host_ctxt, 3);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_iommu_driver_init(id, data, size);
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -1012,6 +1021,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_vcpu_load),
 	HANDLE_FUNC(__pkvm_vcpu_put),
 	HANDLE_FUNC(__pkvm_vcpu_sync_state),
+	HANDLE_FUNC(__pkvm_iommu_driver_init),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
new file mode 100644
index 0000000000000..3bf76be92821f
--- /dev/null
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ */
+
+#include <linux/kvm_host.h>
+
+#include <asm/kvm_asm.h>
+#include <asm/kvm_hyp.h>
+#include <asm/kvm_mmu.h>
+
+#include <nvhe/iommu.h>
+
+enum {
+	IOMMU_DRIVER_NOT_READY = 0,
+	IOMMU_DRIVER_INITIALIZING,
+	IOMMU_DRIVER_READY,
+};
+
+struct pkvm_iommu_driver {
+	const struct pkvm_iommu_ops *ops;
+	atomic_t state;
+};
+
+static struct pkvm_iommu_driver iommu_drivers[PKVM_IOMMU_NR_DRIVERS];
+
+/*
+ * Find IOMMU driver by its ID. The input ID is treated as unstrusted
+ * and is properly validated.
+ */
+static inline struct pkvm_iommu_driver *get_driver(enum pkvm_iommu_driver_id id)
+{
+	size_t index = (size_t)id;
+
+	if (index >= ARRAY_SIZE(iommu_drivers))
+		return NULL;
+
+	return &iommu_drivers[index];
+}
+
+static const struct pkvm_iommu_ops *get_driver_ops(enum pkvm_iommu_driver_id id)
+{
+	switch (id) {
+	default:
+		return NULL;
+	}
+}
+
+static inline bool driver_acquire_init(struct pkvm_iommu_driver *drv)
+{
+	return atomic_cmpxchg_acquire(&drv->state, IOMMU_DRIVER_NOT_READY,
+				      IOMMU_DRIVER_INITIALIZING)
+			== IOMMU_DRIVER_NOT_READY;
+}
+
+static inline void driver_release_init(struct pkvm_iommu_driver *drv,
+				       bool success)
+{
+	atomic_set_release(&drv->state, success ? IOMMU_DRIVER_READY
+						: IOMMU_DRIVER_NOT_READY);
+}
+
+/*
+ * Initialize EL2 IOMMU driver.
+ *
+ * This is a common hypercall for driver initialization. Driver-specific
+ * arguments are passed in a shared memory buffer. The driver is expected to
+ * initialize it's page-table bookkeeping.
+ */
+int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size)
+{
+	struct pkvm_iommu_driver *drv;
+	const struct pkvm_iommu_ops *ops;
+	int ret = 0;
+
+	data = kern_hyp_va(data);
+
+	drv = get_driver(id);
+	ops = get_driver_ops(id);
+	if (!drv || !ops)
+		return -EINVAL;
+
+	if (!driver_acquire_init(drv))
+		return -EBUSY;
+
+	drv->ops = ops;
+
+	/* This can change stage-2 mappings. */
+	if (ops->init) {
+		ret = hyp_pin_shared_mem(data, data + size);
+		if (!ret) {
+			ret = ops->init(data, size);
+			hyp_unpin_shared_mem(data, data + size);
+		}
+		if (ret)
+			goto out;
+	}
+
+out:
+	driver_release_init(drv, /*success=*/!ret);
+	return ret;
+}
diff --git a/arch/arm64/kvm/iommu.c b/arch/arm64/kvm/iommu.c
new file mode 100644
index 0000000000000..edd7316bd61b8
--- /dev/null
+++ b/arch/arm64/kvm/iommu.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 - Google LLC
+ * Author: David Brazdil <dbrazdil@google.com>
+ */
+
+#include <linux/kvm_host.h>
+
+int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size)
+{
+	return kvm_call_hyp_nvhe(__pkvm_iommu_driver_init, id, data, size);
+}
-- 
GitLab


From d7adab5f9fcb7f7efd76bdbc23a1b37322156112 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 18:13:49 +0000
Subject: [PATCH 4430/4878] ANDROID: KVM: arm64: iommu: Avoid mapping devices
 in host stage-2

Introduce a linked list of IOMMU devices and
'pkvm_iommu_host_stage2_adjust_range' called from host DABT handler.
The function will adjust the memory range that is about to be mapped
to avoid MMIO regions of all devices in the linked list. If the host
tried to access a device MMIO region, the access is declined.

The function replaces the existing call to
'kvm_iommu.ops.host_stage2_adjust_mmio_range' callback.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ib38256f0005588810a4400efd9a85380d354be59
---
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  8 +++++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 41 +++++++++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c   | 12 ++++----
 3 files changed, 55 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 7f2d2337c0e2e..5083d746fd7d0 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -18,7 +18,15 @@ struct pkvm_iommu_ops {
 	int (*init)(void *data, size_t size);
 };
 
+struct pkvm_iommu {
+	struct list_head list;
+	phys_addr_t pa;
+	size_t size;
+};
+
 int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size);
+int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
+					phys_addr_t *end);
 
 struct kvm_iommu_ops {
 	int (*init)(void);
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 3bf76be92821f..d3b112b3992f3 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -25,6 +25,14 @@ struct pkvm_iommu_driver {
 
 static struct pkvm_iommu_driver iommu_drivers[PKVM_IOMMU_NR_DRIVERS];
 
+/* IOMMU device list. Must only be accessed with host_kvm.lock held. */
+static LIST_HEAD(iommu_list);
+
+static void assert_host_component_locked(void)
+{
+	hyp_assert_lock_held(&host_kvm.lock);
+}
+
 /*
  * Find IOMMU driver by its ID. The input ID is treated as unstrusted
  * and is properly validated.
@@ -101,3 +109,36 @@ out:
 	driver_release_init(drv, /*success=*/!ret);
 	return ret;
 }
+
+/*
+ * Check host memory access against IOMMUs' MMIO regions.
+ * Returns -EPERM if the address is within the bounds of a registered device.
+ * Otherwise returns zero and adjusts boundaries of the new mapping to avoid
+ * MMIO regions of registered IOMMUs.
+ */
+int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
+					phys_addr_t *end)
+{
+	struct pkvm_iommu *dev;
+	phys_addr_t new_start = *start;
+	phys_addr_t new_end = *end;
+	phys_addr_t dev_start, dev_end;
+
+	assert_host_component_locked();
+
+	list_for_each_entry(dev, &iommu_list, list) {
+		dev_start = dev->pa;
+		dev_end = dev_start + dev->size;
+
+		if (addr < dev_start)
+			new_end = min(new_end, dev_start);
+		else if (addr >= dev_end)
+			new_start = max(new_start, dev_end);
+		else
+			return -EPERM;
+	}
+
+	*start = new_start;
+	*end = new_end;
+	return 0;
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 8758bc56de561..4753e892b8d29 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -562,13 +562,13 @@ static int host_stage2_idmap(u64 addr)
 
 	prot = is_memory ? PKVM_HOST_MEM_PROT : PKVM_HOST_MMIO_PROT;
 
-	/**
-	 * Let device drivers adjust the permitted range first.
-	 * host_stage2_adjust_range() should be last to also properly align it.
+	/*
+	 * Adjust against IOMMU devices first. host_stage2_adjust_range() should
+	 * be called last for proper alignment.
 	 */
-	if (!is_memory && kvm_iommu_ops.host_stage2_adjust_mmio_range) {
-		ret = kvm_iommu_ops.host_stage2_adjust_mmio_range(addr, &range.start,
-								  &range.end);
+	if (!is_memory) {
+		ret = pkvm_iommu_host_stage2_adjust_range(addr, &range.start,
+							  &range.end);
 		if (ret)
 			return ret;
 	}
-- 
GitLab


From 78e0b7722c8d2961af0b3f2c8115df336cf7b492 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 17:52:34 +0000
Subject: [PATCH 4431/4878] ANDROID: KVM: arm64: iommu: Register device hypcall

Add '__pkvm_iommu_register' hypcall for registering a new IOMMU device.
The handler allocates a linked-list entry for the device from a memory
pool provided by the host. If the pool has run out, the handler returns
-ENOMEM and expects the host to call it again with a fresh mem pool.

The inputs are validated, eg. ID is unique and memory region does not
overlap with existing IOMMUs. The driver can also implement a 'validate'
callback for driver-specific input validation.

If successful, the handler creates a private EL2 mapping for the device,
forces the memory region is unmapped from host stage-2 and inserts the
device into the linked list. Future attempts to map the MMIO region will
fail because of pkvm_iommu_host_stage2_adjust_range.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: If54ba41cd0b219c6e63508b542d526703ab5b97e
---
 arch/arm64/include/asm/kvm_asm.h              |   1 +
 arch/arm64/include/asm/kvm_host.h             |   2 +
 arch/arm64/kvm/hyp/include/nvhe/iommu.h       |  17 ++
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |   1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  14 ++
 arch/arm64/kvm/hyp/nvhe/iommu.c               | 179 ++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         |  15 +-
 arch/arm64/kvm/iommu.c                        |  30 +++
 8 files changed, 255 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 2f730d0b845ec..30b96018316c5 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -80,6 +80,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_put,
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_sync_state,
 	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_driver_init,
+	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_register,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index e76792ff2a2ba..8d3ff441b4d98 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -392,6 +392,8 @@ enum pkvm_iommu_driver_id {
 };
 
 int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id drv_id, void *data, size_t size);
+int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
+			phys_addr_t pa, size_t size);
 
 struct vcpu_reset_state {
 	unsigned long	pc;
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 5083d746fd7d0..2b404d01693fc 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -16,15 +16,32 @@ struct pkvm_iommu_ops {
 	 * Driver initialization lock held during callback.
 	 */
 	int (*init)(void *data, size_t size);
+
+	/*
+	 * Driver-specific validation of device registration inputs.
+	 * This should be stateless. No locks are held at entry.
+	 */
+	int (*validate)(phys_addr_t base, size_t size);
+
+	/* Amount of memory allocated per-device for use by the driver. */
+	size_t data_size;
 };
 
 struct pkvm_iommu {
 	struct list_head list;
+	unsigned long id;
+	const struct pkvm_iommu_ops *ops;
 	phys_addr_t pa;
+	void *va;
 	size_t size;
+	char data[];
 };
 
 int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size);
+int __pkvm_iommu_register(unsigned long dev_id,
+			  enum pkvm_iommu_driver_id drv_id,
+			  phys_addr_t dev_pa, size_t dev_size,
+			  void *kern_mem_va, size_t mem_size);
 int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
 					phys_addr_t *end);
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index e9eef7c2cebba..3f4f90f55c5c4 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -80,6 +80,7 @@ bool __pkvm_check_ioguard_page(struct kvm_vcpu *vcpu);
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
 int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, pkvm_id owner_id);
+int host_stage2_unmap_dev_locked(phys_addr_t start, u64 size);
 int kvm_host_prepare_stage2(void *pgt_pool_base);
 int kvm_guest_prepare_stage2(struct kvm_shadow_vm *vm, void *pgd);
 void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index a4924649b6d74..2e44697612dc9 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -988,6 +988,19 @@ static void handle___pkvm_iommu_driver_init(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_iommu_driver_init(id, data, size);
 }
 
+static void handle___pkvm_iommu_register(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(unsigned long, dev_id, host_ctxt, 1);
+	DECLARE_REG(enum pkvm_iommu_driver_id, drv_id, host_ctxt, 2);
+	DECLARE_REG(phys_addr_t, dev_pa, host_ctxt, 3);
+	DECLARE_REG(size_t, dev_size, host_ctxt, 4);
+	DECLARE_REG(void *, mem, host_ctxt, 5);
+	DECLARE_REG(size_t, mem_size, host_ctxt, 6);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_iommu_register(dev_id, drv_id, dev_pa,
+						      dev_size, mem, mem_size);
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -1022,6 +1035,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_vcpu_put),
 	HANDLE_FUNC(__pkvm_vcpu_sync_state),
 	HANDLE_FUNC(__pkvm_iommu_driver_init),
+	HANDLE_FUNC(__pkvm_iommu_register),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index d3b112b3992f3..0619096affcab 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -9,8 +9,10 @@
 #include <asm/kvm_asm.h>
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
+#include <asm/kvm_pkvm.h>
 
 #include <nvhe/iommu.h>
+#include <nvhe/mm.h>
 
 enum {
 	IOMMU_DRIVER_NOT_READY = 0,
@@ -33,6 +35,16 @@ static void assert_host_component_locked(void)
 	hyp_assert_lock_held(&host_kvm.lock);
 }
 
+static void host_lock_component(void)
+{
+	hyp_spin_lock(&host_kvm.lock);
+}
+
+static void host_unlock_component(void)
+{
+	hyp_spin_unlock(&host_kvm.lock);
+}
+
 /*
  * Find IOMMU driver by its ID. The input ID is treated as unstrusted
  * and is properly validated.
@@ -69,6 +81,91 @@ static inline void driver_release_init(struct pkvm_iommu_driver *drv,
 						: IOMMU_DRIVER_NOT_READY);
 }
 
+static inline bool is_driver_ready(struct pkvm_iommu_driver *drv)
+{
+	return atomic_read(&drv->state) == IOMMU_DRIVER_READY;
+}
+
+/* Global memory pool for allocating IOMMU list entry structs. */
+static inline struct pkvm_iommu *
+alloc_iommu_list_entry(struct pkvm_iommu_driver *drv, void *mem, size_t mem_size)
+{
+	static void *pool;
+	static size_t remaining;
+	static DEFINE_HYP_SPINLOCK(lock);
+	size_t size = sizeof(struct pkvm_iommu) + drv->ops->data_size;
+	void *ptr;
+
+	size = ALIGN(size, sizeof(unsigned long));
+
+	hyp_spin_lock(&lock);
+
+	/*
+	 * If new memory is being provided, replace the existing pool with it.
+	 * Any remaining memory in the pool is discarded.
+	 */
+	if (mem && mem_size) {
+		pool = mem;
+		remaining = mem_size;
+	}
+
+	if (size <= remaining) {
+		ptr = pool;
+		pool += size;
+		remaining -= size;
+	} else {
+		ptr = NULL;
+	}
+
+	hyp_spin_unlock(&lock);
+	return ptr;
+}
+
+static bool is_overlap(phys_addr_t r1_start, size_t r1_size,
+		       phys_addr_t r2_start, size_t r2_size)
+{
+	phys_addr_t r1_end = r1_start + r1_size;
+	phys_addr_t r2_end = r2_start + r2_size;
+
+	return (r1_start < r2_end) && (r2_start < r1_end);
+}
+
+static bool is_mmio_range(phys_addr_t base, size_t size)
+{
+	struct memblock_region *reg;
+	phys_addr_t limit = BIT(host_kvm.pgt.ia_bits);
+	size_t i;
+
+	/* Check against limits of host IPA space. */
+	if ((base >= limit) || !size || (size > limit - base))
+		return false;
+
+	for (i = 0; i < hyp_memblock_nr; i++) {
+		reg = &hyp_memory[i];
+		if (is_overlap(base, size, reg->base, reg->size))
+			return false;
+	}
+	return true;
+}
+
+static bool validate_against_existing_iommus(struct pkvm_iommu *dev)
+{
+	struct pkvm_iommu *other;
+
+	assert_host_component_locked();
+
+	list_for_each_entry(other, &iommu_list, list) {
+		/* Device ID must be unique. */
+		if (dev->id == other->id)
+			return false;
+
+		/* MMIO regions must not overlap. */
+		if (is_overlap(dev->pa, dev->size, other->pa, other->size))
+			return false;
+	}
+	return true;
+}
+
 /*
  * Initialize EL2 IOMMU driver.
  *
@@ -110,6 +207,88 @@ out:
 	return ret;
 }
 
+int __pkvm_iommu_register(unsigned long dev_id,
+			  enum pkvm_iommu_driver_id drv_id,
+			  phys_addr_t dev_pa, size_t dev_size,
+			  void *kern_mem_va, size_t mem_size)
+{
+	struct pkvm_iommu *dev = NULL;
+	struct pkvm_iommu_driver *drv;
+	void *dev_va, *mem_va = NULL;
+	int ret = 0;
+
+	drv = get_driver(drv_id);
+	if (!drv || !is_driver_ready(drv))
+		return -ENOENT;
+
+	if (!PAGE_ALIGNED(dev_pa) || !PAGE_ALIGNED(dev_size))
+		return -EINVAL;
+
+	if (!is_mmio_range(dev_pa, dev_size))
+		return -EINVAL;
+
+	if (drv->ops->validate) {
+		ret = drv->ops->validate(dev_pa, dev_size);
+		if (ret)
+			return ret;
+	}
+
+	/*
+	 * Accept memory donation if the host is providing new memory.
+	 * Note: We do not return the memory even if there is an error later.
+	 */
+	if (kern_mem_va && mem_size) {
+		mem_va = kern_hyp_va(kern_mem_va);
+
+		if (!PAGE_ALIGNED(mem_va) || !PAGE_ALIGNED(mem_size))
+			return -EINVAL;
+
+		ret = __pkvm_host_donate_hyp(hyp_virt_to_pfn(mem_va),
+					     mem_size >> PAGE_SHIFT);
+		if (ret)
+			return ret;
+	}
+
+	/* Allocate memory for the new device entry. */
+	dev = alloc_iommu_list_entry(drv, mem_va, mem_size);
+	if (!dev)
+		return -ENOMEM;
+
+	/* Create EL2 mapping for the device. */
+	dev_va = (void *)__pkvm_create_private_mapping(dev_pa, dev_size,
+						       PAGE_HYP_DEVICE);
+	if (IS_ERR(dev_va))
+		return PTR_ERR(dev_va);
+
+	/* Populate the new device entry. */
+	*dev = (struct pkvm_iommu){
+		.id = dev_id,
+		.ops = drv->ops,
+		.pa = dev_pa,
+		.va = dev_va,
+		.size = dev_size,
+	};
+
+	/* Take the host_kvm lock to block host stage-2 changes. */
+	host_lock_component();
+	if (!validate_against_existing_iommus(dev)) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	/* Unmap the device's MMIO range from host stage-2. */
+	ret = host_stage2_unmap_dev_locked(dev_pa, dev_size);
+	if (ret)
+		goto out;
+
+	/* Register device and prevent host from mapping the MMIO range. */
+	list_add_tail(&dev->list, &iommu_list);
+
+out:
+	host_unlock_component();
+	return ret;
+}
+
 /*
  * Check host memory access against IOMMUs' MMIO regions.
  * Returns -EPERM if the address is within the bounds of a registered device.
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 4753e892b8d29..e7a89df6f4777 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -356,6 +356,13 @@ int __pkvm_prot_finalize(void)
 	return 0;
 }
 
+int host_stage2_unmap_dev_locked(phys_addr_t start, u64 size)
+{
+	hyp_assert_lock_held(&host_kvm.lock);
+
+	return kvm_pgtable_stage2_unmap(&host_kvm.pgt, start, size);
+}
+
 static int host_stage2_unmap_dev_all(void)
 {
 	struct kvm_pgtable *pgt = &host_kvm.pgt;
@@ -366,11 +373,11 @@ static int host_stage2_unmap_dev_all(void)
 	/* Unmap all non-memory regions to recycle the pages */
 	for (i = 0; i < hyp_memblock_nr; i++, addr = reg->base + reg->size) {
 		reg = &hyp_memory[i];
-		ret = kvm_pgtable_stage2_unmap(pgt, addr, reg->base - addr);
+		ret = host_stage2_unmap_dev_locked(addr, reg->base - addr);
 		if (ret)
 			return ret;
 	}
-	return kvm_pgtable_stage2_unmap(pgt, addr, BIT(pgt->ia_bits) - addr);
+	return host_stage2_unmap_dev_locked(addr, BIT(pgt->ia_bits) - addr);
 }
 
 struct kvm_mem_range {
@@ -562,6 +569,7 @@ static int host_stage2_idmap(u64 addr)
 
 	prot = is_memory ? PKVM_HOST_MEM_PROT : PKVM_HOST_MMIO_PROT;
 
+	host_lock_component();
 	/*
 	 * Adjust against IOMMU devices first. host_stage2_adjust_range() should
 	 * be called last for proper alignment.
@@ -570,10 +578,9 @@ static int host_stage2_idmap(u64 addr)
 		ret = pkvm_iommu_host_stage2_adjust_range(addr, &range.start,
 							  &range.end);
 		if (ret)
-			return ret;
+			goto unlock;
 	}
 
-	host_lock_component();
 	ret = host_stage2_adjust_range(addr, &range);
 	if (ret)
 		goto unlock;
diff --git a/arch/arm64/kvm/iommu.c b/arch/arm64/kvm/iommu.c
index edd7316bd61b8..a845be0c8fa9a 100644
--- a/arch/arm64/kvm/iommu.c
+++ b/arch/arm64/kvm/iommu.c
@@ -6,7 +6,37 @@
 
 #include <linux/kvm_host.h>
 
+static unsigned long dev_to_id(struct device *dev)
+{
+	/* Use the struct device pointer as a unique identifier. */
+	return (unsigned long)dev;
+}
+
 int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size)
 {
 	return kvm_call_hyp_nvhe(__pkvm_iommu_driver_init, id, data, size);
 }
+
+int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
+			phys_addr_t pa, size_t size)
+{
+	void *mem;
+	int ret;
+
+	/*
+	 * Hypcall to register the device. It will return -ENOMEM if it needs
+	 * more memory. In that case allocate a page and retry.
+	 * We assume that hyp never allocates more than a page per hypcall.
+	 */
+	ret = kvm_call_hyp_nvhe(__pkvm_iommu_register, dev_to_id(dev),
+				drv_id, pa, size, NULL, 0);
+	if (ret == -ENOMEM) {
+		mem = (void *)__get_free_page(GFP_KERNEL);
+		if (!mem)
+			return -ENOMEM;
+
+		ret = kvm_call_hyp_nvhe(__pkvm_iommu_register, dev_to_id(dev),
+					drv_id, pa, size, mem, PAGE_SIZE);
+	}
+	return ret;
+}
-- 
GitLab


From ca47ae70c77f327be95d8fb6930caa143bb200c9 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 20:58:22 +0000
Subject: [PATCH 4432/4878] ANDROID: KVM: arm64: iommu: Suspend/resume
 callbacks

Add suspend/resume callbacks for IOMMU devices. The EL1 kernel driver
is expected to call these when the IOMMU device is powered on but is
about to be used or about to stop being used.

pkvm_iommu_suspend/resume are exported for use by kernel modules.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I5cd38aaeb685bcdae0368453138cc099055adb27
---
 arch/arm64/include/asm/kvm_asm.h        |  1 +
 arch/arm64/include/asm/kvm_host.h       |  7 +++++
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  9 ++++++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c      |  9 ++++++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 37 +++++++++++++++++++++++++
 arch/arm64/kvm/iommu.c                  | 14 ++++++++++
 6 files changed, 77 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 30b96018316c5..8ce6444d861ae 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -81,6 +81,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___pkvm_vcpu_sync_state,
 	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_driver_init,
 	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_register,
+	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_pm_notify,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 8d3ff441b4d98..929f347512450 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -391,9 +391,16 @@ enum pkvm_iommu_driver_id {
 	PKVM_IOMMU_NR_DRIVERS,
 };
 
+enum pkvm_iommu_pm_event {
+	PKVM_IOMMU_PM_SUSPEND,
+	PKVM_IOMMU_PM_RESUME,
+};
+
 int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id drv_id, void *data, size_t size);
 int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
 			phys_addr_t pa, size_t size);
+int pkvm_iommu_suspend(struct device *dev);
+int pkvm_iommu_resume(struct device *dev);
 
 struct vcpu_reset_state {
 	unsigned long	pc;
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 2b404d01693fc..74eccae4d466b 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -7,6 +7,8 @@
 
 #include <nvhe/mem_protect.h>
 
+struct pkvm_iommu;
+
 struct pkvm_iommu_ops {
 	/*
 	 * Global driver initialization called before devices are registered.
@@ -23,6 +25,10 @@ struct pkvm_iommu_ops {
 	 */
 	int (*validate)(phys_addr_t base, size_t size);
 
+	/* Power management callbacks. Called with host lock held. */
+	int (*suspend)(struct pkvm_iommu *dev);
+	int (*resume)(struct pkvm_iommu *dev);
+
 	/* Amount of memory allocated per-device for use by the driver. */
 	size_t data_size;
 };
@@ -34,6 +40,7 @@ struct pkvm_iommu {
 	phys_addr_t pa;
 	void *va;
 	size_t size;
+	bool powered;
 	char data[];
 };
 
@@ -42,6 +49,8 @@ int __pkvm_iommu_register(unsigned long dev_id,
 			  enum pkvm_iommu_driver_id drv_id,
 			  phys_addr_t dev_pa, size_t dev_size,
 			  void *kern_mem_va, size_t mem_size);
+int __pkvm_iommu_pm_notify(unsigned long dev_id,
+			   enum pkvm_iommu_pm_event event);
 int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
 					phys_addr_t *end);
 
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 2e44697612dc9..5d7a3654af46a 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -1001,6 +1001,14 @@ static void handle___pkvm_iommu_register(struct kvm_cpu_context *host_ctxt)
 						      dev_size, mem, mem_size);
 }
 
+static void handle___pkvm_iommu_pm_notify(struct kvm_cpu_context *host_ctxt)
+{
+	DECLARE_REG(unsigned long, dev_id, host_ctxt, 1);
+	DECLARE_REG(enum pkvm_iommu_pm_event, event, host_ctxt, 2);
+
+	cpu_reg(host_ctxt, 1) = __pkvm_iommu_pm_notify(dev_id, event);
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -1036,6 +1044,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_vcpu_sync_state),
 	HANDLE_FUNC(__pkvm_iommu_driver_init),
 	HANDLE_FUNC(__pkvm_iommu_register),
+	HANDLE_FUNC(__pkvm_iommu_pm_notify),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 0619096affcab..4e9a7c39e745e 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -166,6 +166,19 @@ static bool validate_against_existing_iommus(struct pkvm_iommu *dev)
 	return true;
 }
 
+static struct pkvm_iommu *find_iommu_by_id(unsigned long id)
+{
+	struct pkvm_iommu *dev;
+
+	assert_host_component_locked();
+
+	list_for_each_entry(dev, &iommu_list, list) {
+		if (dev->id == id)
+			return dev;
+	}
+	return NULL;
+}
+
 /*
  * Initialize EL2 IOMMU driver.
  *
@@ -289,6 +302,30 @@ out:
 	return ret;
 }
 
+int __pkvm_iommu_pm_notify(unsigned long dev_id, enum pkvm_iommu_pm_event event)
+{
+	struct pkvm_iommu *dev;
+	int ret;
+
+	host_lock_component();
+	dev = find_iommu_by_id(dev_id);
+	if (dev) {
+		if (event == PKVM_IOMMU_PM_SUSPEND) {
+			ret = dev->ops->suspend ? dev->ops->suspend(dev) : 0;
+			dev->powered = !!ret;
+		} else if (event == PKVM_IOMMU_PM_RESUME) {
+			ret = dev->ops->resume ? dev->ops->resume(dev) : 0;
+			dev->powered = !ret;
+		} else {
+			ret = -EINVAL;
+		}
+	} else {
+		ret = -ENODEV;
+	}
+	host_unlock_component();
+	return ret;
+}
+
 /*
  * Check host memory access against IOMMUs' MMIO regions.
  * Returns -EPERM if the address is within the bounds of a registered device.
diff --git a/arch/arm64/kvm/iommu.c b/arch/arm64/kvm/iommu.c
index a845be0c8fa9a..e13d36ec57e71 100644
--- a/arch/arm64/kvm/iommu.c
+++ b/arch/arm64/kvm/iommu.c
@@ -40,3 +40,17 @@ int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
 	}
 	return ret;
 }
+
+int pkvm_iommu_suspend(struct device *dev)
+{
+	return kvm_call_hyp_nvhe(__pkvm_iommu_pm_notify, dev_to_id(dev),
+				 PKVM_IOMMU_PM_SUSPEND);
+}
+EXPORT_SYMBOL_GPL(pkvm_iommu_suspend);
+
+int pkvm_iommu_resume(struct device *dev)
+{
+	return kvm_call_hyp_nvhe(__pkvm_iommu_pm_notify, dev_to_id(dev),
+				 PKVM_IOMMU_PM_RESUME);
+}
+EXPORT_SYMBOL_GPL(pkvm_iommu_resume);
-- 
GitLab


From 5df451f35e66b890b086b417c60d42118266823f Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 22:09:46 +0000
Subject: [PATCH 4433/4878] ANDROID: KVM: arm64: iommu: DABT handler callback

Replace the 'host_mmio_dabt_handler' hook in kvm_iommu_ops with
an equivalent callback in the new pkvm_iommu_ops. The generic portion
of the code finds the IOMMU device at the faulted address and invokes
the callback on it.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I44147ceb7877dc1999fd10f4db55659bbbec5bb7
---
 arch/arm64/kvm/hyp/include/nvhe/iommu.h | 10 ++++++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 22 +++++++++++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c   | 43 +++++++------------------
 3 files changed, 44 insertions(+), 31 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 74eccae4d466b..88f6703245efc 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -29,6 +29,14 @@ struct pkvm_iommu_ops {
 	int (*suspend)(struct pkvm_iommu *dev);
 	int (*resume)(struct pkvm_iommu *dev);
 
+	/*
+	 * Host data abort handler callback. Called with host lock held.
+	 * Returns true if the data abort has been handled.
+	 */
+	bool (*host_dabt_handler)(struct pkvm_iommu *dev,
+				  struct kvm_cpu_context *host_ctxt,
+				  u32 esr, size_t off);
+
 	/* Amount of memory allocated per-device for use by the driver. */
 	size_t data_size;
 };
@@ -53,6 +61,8 @@ int __pkvm_iommu_pm_notify(unsigned long dev_id,
 			   enum pkvm_iommu_pm_event event);
 int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
 					phys_addr_t *end);
+bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
+				  phys_addr_t fault_pa);
 
 struct kvm_iommu_ops {
 	int (*init)(void);
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 4e9a7c39e745e..50a0a4634285b 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -11,6 +11,7 @@
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_pkvm.h>
 
+#include <hyp/adjust_pc.h>
 #include <nvhe/iommu.h>
 #include <nvhe/mm.h>
 
@@ -358,3 +359,24 @@ int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
 	*end = new_end;
 	return 0;
 }
+
+bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
+				  phys_addr_t pa)
+{
+	struct pkvm_iommu *dev;
+
+	assert_host_component_locked();
+
+	list_for_each_entry(dev, &iommu_list, list) {
+		if (pa < dev->pa || pa >= dev->pa + dev->size)
+			continue;
+
+		if (!dev->powered || !dev->ops->host_dabt_handler ||
+		    !dev->ops->host_dabt_handler(dev, host_ctxt, esr, pa - dev->pa))
+			return false;
+
+		kvm_skip_host_instr();
+		return true;
+	}
+	return false;
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index e7a89df6f4777..d1179c0e22303 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -567,9 +567,10 @@ static int host_stage2_idmap(u64 addr)
 	enum kvm_pgtable_prot prot;
 	int ret;
 
+	hyp_assert_lock_held(&host_kvm.lock);
+
 	prot = is_memory ? PKVM_HOST_MEM_PROT : PKVM_HOST_MMIO_PROT;
 
-	host_lock_component();
 	/*
 	 * Adjust against IOMMU devices first. host_stage2_adjust_range() should
 	 * be called last for proper alignment.
@@ -578,38 +579,14 @@ static int host_stage2_idmap(u64 addr)
 		ret = pkvm_iommu_host_stage2_adjust_range(addr, &range.start,
 							  &range.end);
 		if (ret)
-			goto unlock;
+			return ret;
 	}
 
 	ret = host_stage2_adjust_range(addr, &range);
 	if (ret)
-		goto unlock;
-
-	ret = host_stage2_idmap_locked(range.start, range.end - range.start, prot);
-unlock:
-	host_unlock_component();
-
-	return ret;
-}
-
-static int host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
-				  phys_addr_t addr)
-{
-	bool wnr = esr & ESR_ELx_WNR;
-	unsigned int len = BIT((esr & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT);
-	int rd = (esr & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
-	bool handled = false;
-
-	if (kvm_iommu_ops.host_mmio_dabt_handler) {
-		handled = kvm_iommu_ops.host_mmio_dabt_handler(host_ctxt, addr,
-							       len, wnr, rd);
-	}
-
-	if (!handled)
-		return -EPERM;
+		return ret;
 
-	kvm_skip_host_instr();
-	return 0;
+	return host_stage2_idmap_locked(range.start, range.end - range.start, prot);
 }
 
 static bool is_dabt(u64 esr)
@@ -629,14 +606,18 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 	addr = (fault.hpfar_el2 & HPFAR_MASK) << 8;
 	addr |= fault.far_el2 & FAR_MASK;
 
-	/* See if any subsystem can handle this abort. */
-	if (is_dabt(esr) && !addr_is_memory(addr))
-		ret = host_mmio_dabt_handler(host_ctxt, esr, addr);
+	host_lock_component();
+
+	/* Check if an IOMMU device can handle the DABT. */
+	if (is_dabt(esr) && !addr_is_memory(addr) &&
+	    pkvm_iommu_host_dabt_handler(host_ctxt, esr, addr))
+		ret = 0;
 
 	/* If not handled, attempt to map the page. */
 	if (ret == -EPERM)
 		ret = host_stage2_idmap(addr);
 
+	host_unlock_component();
 	BUG_ON(ret && ret != -EAGAIN);
 }
 
-- 
GitLab


From 4395ddff4bc5ba21935e53861b86e7063447bf85 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 22:30:37 +0000
Subject: [PATCH 4434/4878] ANDROID: KVM: arm64: iommu: Host stage-2 idmap
 callbacks

Add IOMMU callbacks for host stage-2 idmap changes.
'host_stage2_idmap_prepare' is called first and is expected to apply
the changes on the driver level, eg. update driver-specific page table
information. If successful, the generic code invokes
'host_stage2_idmap_apply' on each currently powered IOMMU device
associated with the driver to apply the changes.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Icf0d7b9c4b5b7219074b54c961db2fe85561d114
---
 arch/arm64/kvm/hyp/include/nvhe/iommu.h | 16 +++++++++++++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 21 +++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c   | 30 +++++++++++++++++++------
 3 files changed, 60 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 88f6703245efc..75a4790a8a5d3 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -25,6 +25,20 @@ struct pkvm_iommu_ops {
 	 */
 	int (*validate)(phys_addr_t base, size_t size);
 
+	/*
+	 * Callback to apply a host stage-2 mapping change at driver level.
+	 * Called before 'host_stage2_idmap_apply' with host lock held.
+	 */
+	void (*host_stage2_idmap_prepare)(phys_addr_t start, phys_addr_t end,
+					  enum kvm_pgtable_prot prot);
+
+	/*
+	 * Callback to apply a host stage-2 mapping change at device level.
+	 * Called after 'host_stage2_idmap_prepare' with host lock held.
+	 */
+	void (*host_stage2_idmap_apply)(struct pkvm_iommu *dev,
+					phys_addr_t start, phys_addr_t end);
+
 	/* Power management callbacks. Called with host lock held. */
 	int (*suspend)(struct pkvm_iommu *dev);
 	int (*resume)(struct pkvm_iommu *dev);
@@ -63,6 +77,8 @@ int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
 					phys_addr_t *end);
 bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 				  phys_addr_t fault_pa);
+void pkvm_iommu_host_stage2_idmap(phys_addr_t start, phys_addr_t end,
+				  enum kvm_pgtable_prot prot);
 
 struct kvm_iommu_ops {
 	int (*init)(void);
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 50a0a4634285b..3b31e8819728d 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -380,3 +380,24 @@ bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 	}
 	return false;
 }
+
+void pkvm_iommu_host_stage2_idmap(phys_addr_t start, phys_addr_t end,
+				  enum kvm_pgtable_prot prot)
+{
+	struct pkvm_iommu_driver *drv;
+	struct pkvm_iommu *dev;
+	size_t i;
+
+	assert_host_component_locked();
+
+	for (i = 0; i < ARRAY_SIZE(iommu_drivers); i++) {
+		drv = get_driver(i);
+		if (drv && is_driver_ready(drv) && drv->ops->host_stage2_idmap_prepare)
+			drv->ops->host_stage2_idmap_prepare(start, end, prot);
+	}
+
+	list_for_each_entry(dev, &iommu_list, list) {
+		if (dev->powered && dev->ops->host_stage2_idmap_apply)
+			dev->ops->host_stage2_idmap_apply(dev, start, end);
+	}
+}
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index d1179c0e22303..771aca0fdf969 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -358,9 +358,16 @@ int __pkvm_prot_finalize(void)
 
 int host_stage2_unmap_dev_locked(phys_addr_t start, u64 size)
 {
+	int ret;
+
 	hyp_assert_lock_held(&host_kvm.lock);
 
-	return kvm_pgtable_stage2_unmap(&host_kvm.pgt, start, size);
+	ret = kvm_pgtable_stage2_unmap(&host_kvm.pgt, start, size);
+	if (ret)
+		return ret;
+
+	pkvm_iommu_host_stage2_idmap(start, start + size, 0);
+	return 0;
 }
 
 static int host_stage2_unmap_dev_all(void)
@@ -450,8 +457,15 @@ static bool range_is_memory(u64 start, u64 end)
 static inline int __host_stage2_idmap(u64 start, u64 end,
 				      enum kvm_pgtable_prot prot)
 {
-	return kvm_pgtable_stage2_map(&host_kvm.pgt, start, end - start, start,
-				      prot, &host_s2_pool);
+	int ret;
+
+	ret = kvm_pgtable_stage2_map(&host_kvm.pgt, start, end - start, start,
+				     prot, &host_s2_pool);
+	if (ret)
+		return ret;
+
+	pkvm_iommu_host_stage2_idmap(start, end, prot);
+	return 0;
 }
 
 /*
@@ -527,15 +541,17 @@ int host_stage2_set_owner_locked(phys_addr_t addr, u64 size,
 				 pkvm_id owner_id)
 {
 	kvm_pte_t annotation = kvm_init_invalid_leaf_owner(owner_id);
+	enum kvm_pgtable_prot prot;
 	int ret;
 
 	ret = host_stage2_try(kvm_pgtable_stage2_annotate, &host_kvm.pgt,
 			      addr, size, &host_s2_pool, annotation);
+	if (ret)
+		return ret;
 
-	if (!ret && kvm_iommu_ops.host_stage2_set_owner)
-		kvm_iommu_ops.host_stage2_set_owner(addr, size, owner_id);
-
-	return ret;
+	prot = owner_id == pkvm_host_id ? PKVM_HOST_MEM_PROT : 0;
+	pkvm_iommu_host_stage2_idmap(addr, addr + size, prot);
+	return 0;
 }
 
 static bool host_stage2_force_pte_cb(u64 addr, u64 end, enum kvm_pgtable_prot prot)
-- 
GitLab


From 1ec4b346d0b65a868c52e5ff11b30918ed29185c Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 23:34:26 +0000
Subject: [PATCH 4435/4878] ANDROID: KVM: arm64: iommu: Snapshot host stage-2
 at driver init

IOMMU drivers may need to keep their own state of the host stage-2
mappings, eg. because they cannot share the PTs with the CPU. To this
end, walk the host stage-2 at driver init time and pass the current
state of host stage-2 mappings to the driver.

The driver initialization lock is released together with host_kvm
lock. That was the driver starts receiving stage-2 updates immediately
after the snapshot is taken.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I62c54c43d2e165d4abab5efbe14e6ea2589c9ed0
---
 arch/arm64/kvm/hyp/nvhe/iommu.c | 47 ++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 3b31e8819728d..80d85b4422333 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -149,6 +149,40 @@ static bool is_mmio_range(phys_addr_t base, size_t size)
 	return true;
 }
 
+static int __snapshot_host_stage2(u64 start, u64 end, u32 level,
+				  kvm_pte_t *ptep,
+				  enum kvm_pgtable_walk_flags flags,
+				  void * const arg)
+{
+	struct pkvm_iommu_driver * const drv = arg;
+	enum kvm_pgtable_prot prot;
+	kvm_pte_t pte = *ptep;
+
+	/*
+	 * Valid stage-2 entries are created lazily, invalid ones eagerly.
+	 * Note: In the future we may need to check if [start,end) is MMIO.
+	 */
+	prot = (!pte || kvm_pte_valid(pte)) ? PKVM_HOST_MEM_PROT : 0;
+
+	drv->ops->host_stage2_idmap_prepare(start, end, prot);
+	return 0;
+}
+
+static int snapshot_host_stage2(struct pkvm_iommu_driver * const drv)
+{
+	struct kvm_pgtable_walker walker = {
+		.cb	= __snapshot_host_stage2,
+		.arg	= drv,
+		.flags	= KVM_PGTABLE_WALK_LEAF,
+	};
+	struct kvm_pgtable *pgt = &host_kvm.pgt;
+
+	if (!drv->ops->host_stage2_idmap_prepare)
+		return 0;
+
+	return kvm_pgtable_walk(pgt, 0, BIT(pgt->ia_bits), &walker);
+}
+
 static bool validate_against_existing_iommus(struct pkvm_iommu *dev)
 {
 	struct pkvm_iommu *other;
@@ -216,8 +250,19 @@ int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t si
 			goto out;
 	}
 
+	/*
+	 * Walk host stage-2 and pass current mappings to the driver. Start
+	 * accepting host stage-2 updates as soon as the host lock is released.
+	 */
+	host_lock_component();
+	ret = snapshot_host_stage2(drv);
+	if (!ret)
+		driver_release_init(drv, /*success=*/true);
+	host_unlock_component();
+
 out:
-	driver_release_init(drv, /*success=*/!ret);
+	if (ret)
+		driver_release_init(drv, /*success=*/false);
 	return ret;
 }
 
-- 
GitLab


From c823243791205b8219b60294bc7615e198c12382 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 7 Jan 2022 11:33:38 +0000
Subject: [PATCH 4436/4878] ANDROID: KVM: arm64: s2mpu: Move SFR init to EL2

S2MPU code previously assumed that all S2MPUs were powered on at boot
and would check the version register and precompute the value of
S2MPU.CONTEXT_CFG_VALID_VID.

With EL1 S2MPU code being removed, and to allow for S2MPUs not powered
at boot, move the code to EL2 and run it on resume.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ib3c3926c1ed3b78fe39769758a8d66490963d4c5
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 117 +++++++++++++++++++++-----
 arch/arm64/kvm/iommu/s2mpu.c          |  71 ----------------
 2 files changed, 95 insertions(+), 93 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index ad5716cd51ee3..e0783369a41ba 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -30,6 +30,10 @@
 #define for_each_powered_s2mpu(i) \
 	for_each_s2mpu((i)) if (is_powered_on((i)))
 
+#define CTX_CFG_ENTRY(ctxid, nr_ctx, vid) \
+	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
+	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
+
 size_t __ro_after_init		kvm_hyp_nr_s2mpus;
 struct s2mpu __ro_after_init	*kvm_hyp_s2mpus;
 struct mpt			kvm_hyp_host_mpt;
@@ -67,18 +71,75 @@ static bool is_in_power_domain(struct s2mpu *dev, u64 power_domain_id)
 	}
 }
 
-/*
- * Write CONTEXT_CFG_VALID_VID configuration before touching L1ENTRY* registers.
- * Writes to those registers are ignored unless there is a context ID allocated
- * to the corresponding VID (v9 only).
- */
-static void __set_context_ids(struct s2mpu *dev)
+static u32 __context_cfg_valid_vid(struct s2mpu *dev, u32 vid_bmap)
 {
-	if (!is_version(dev, S2MPU_VERSION_9))
-		return;
+	u8 ctx_vid[NR_CTX_IDS] = { 0 };
+	unsigned int vid, ctx = 0;
+	unsigned int num_ctx;
+	u32 res;
+
+	/* Only initialize once. */
+	if (dev->context_cfg_valid_vid)
+		return dev->context_cfg_valid_vid;
+
+	num_ctx = readl_relaxed(dev->va + REG_NS_NUM_CONTEXT) & NUM_CONTEXT_MASK;
+	while (vid_bmap) {
+		/* Break if we cannot allocate more. */
+		if (ctx >= num_ctx)
+			break;
+
+		vid = __ffs(vid_bmap);
+		vid_bmap &= ~BIT(vid);
+		ctx_vid[ctx++] = vid;
+	}
+
+	/* The following loop was unrolled so bitmasks are constant. */
+	BUILD_BUG_ON(NR_CTX_IDS != 8);
+	res = CTX_CFG_ENTRY(0, ctx, ctx_vid[0])
+	    | CTX_CFG_ENTRY(1, ctx, ctx_vid[1])
+	    | CTX_CFG_ENTRY(2, ctx, ctx_vid[2])
+	    | CTX_CFG_ENTRY(3, ctx, ctx_vid[3])
+	    | CTX_CFG_ENTRY(4, ctx, ctx_vid[4])
+	    | CTX_CFG_ENTRY(5, ctx, ctx_vid[5])
+	    | CTX_CFG_ENTRY(6, ctx, ctx_vid[6])
+	    | CTX_CFG_ENTRY(7, ctx, ctx_vid[7]);
+
+	dev->context_cfg_valid_vid = res;
+	return res;
+}
+
+static int __initialize_v9(struct s2mpu *dev)
+{
+	u32 ssmt_valid_vid_bmap, ctx_cfg;
+
+	/* Assume all VIDs may be generated by the connected SSMTs for now. */
+	ssmt_valid_vid_bmap = ALL_VIDS_BITMAP;
+	ctx_cfg = __context_cfg_valid_vid(dev, ssmt_valid_vid_bmap);
+	if (!ctx_cfg)
+		return -EINVAL;
+
+	/*
+	 * Write CONTEXT_CFG_VALID_VID configuration before touching L1ENTRY*
+	 * registers. Writes to those registers are ignored unless there is
+	 * a context ID allocated to the corresponding VID (v9 only).
+	 */
+	writel_relaxed(ctx_cfg, dev->va + REG_NS_CONTEXT_CFG_VALID_VID);
+	return 0;
+}
 
-	writel_relaxed(dev->context_cfg_valid_vid,
-		       dev->va + REG_NS_CONTEXT_CFG_VALID_VID);
+static int __initialize(struct s2mpu *dev)
+{
+	if (!dev->version)
+		dev->version = readl_relaxed(dev->va + REG_NS_VERSION);
+
+	switch (dev->version & VERSION_CHECK_MASK) {
+	case S2MPU_VERSION_8:
+		return 0;
+	case S2MPU_VERSION_9:
+		return __initialize_v9(dev);
+	default:
+		return -EINVAL;
+	}
 }
 
 static void __set_control_regs(struct s2mpu *dev)
@@ -179,12 +240,14 @@ static void __set_l1entry_l2table_addr(struct s2mpu *dev, unsigned int gb,
  * Initialize S2MPU device and set all GB regions to 1G granularity with
  * given protection bits.
  */
-static void initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
+static int initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
 {
 	unsigned int gb, vid;
+	int ret;
 
-	/* Must write CONTEXT_CFG_VALID_VID before setting L1ENTRY registers. */
-	__set_context_ids(dev);
+	ret = __initialize(dev);
+	if (ret)
+		return ret;
 
 	for_each_gb_and_vid(gb, vid)
 		__set_l1entry_attr_with_prot(dev, gb, vid, prot);
@@ -192,19 +255,22 @@ static void initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
 
 	/* Set control registers, enable the S2MPU. */
 	__set_control_regs(dev);
+	return 0;
 }
 
 /*
  * Initialize S2MPU device, set L2 table addresses and configure L1TABLE_ATTR
  * registers according to the given MPT struct.
  */
-static void initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
+static int initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
 {
 	unsigned int gb, vid;
 	struct fmpt *fmpt;
+	int ret;
 
-	/* Must write CONTEXT_CFG_VALID_VID before setting L1ENTRY registers. */
-	__set_context_ids(dev);
+	ret = __initialize(dev);
+	if (ret)
+		return ret;
 
 	for_each_gb_and_vid(gb, vid) {
 		fmpt = &mpt->fmpt[gb];
@@ -215,6 +281,7 @@ static void initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
 
 	/* Set control registers, enable the S2MPU. */
 	__set_control_regs(dev);
+	return 0;
 }
 
 /*
@@ -328,6 +395,7 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 
 	struct arm_smccc_res res;
 	struct s2mpu *dev;
+	int ret;
 
 	if (fn != SMC_CMD_PREPARE_PD_ONOFF)
 		return false; /* SMC not handled */
@@ -352,23 +420,25 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 
 	hyp_spin_lock(&s2mpu_lock);
 	arm_smccc_1_1_smc(fn, mode, domain_id, group, &res);
-	if (res.a0 == SMCCC_RET_SUCCESS) {
+	ret = res.a0;
+
+	if (ret == SMCCC_RET_SUCCESS) {
 		for_each_s2mpu(dev) {
 			if (!is_in_power_domain(dev, domain_id))
 				continue;
 
 			if (mode == SMC_MODE_POWER_UP) {
 				dev->power_state = S2MPU_POWER_ON;
-				initialize_with_mpt(dev, &kvm_hyp_host_mpt);
+				ret = initialize_with_mpt(dev, &kvm_hyp_host_mpt);
 			} else {
-				initialize_with_prot(dev, MPT_PROT_NONE);
+				ret = initialize_with_prot(dev, MPT_PROT_NONE);
 				dev->power_state = S2MPU_POWER_OFF;
 			}
 		}
 	}
 	hyp_spin_unlock(&s2mpu_lock);
 
-	cpu_reg(host_ctxt, 0) = res.a0;
+	cpu_reg(host_ctxt, 0) = ret;
 	return true;  /* SMC handled */
 }
 
@@ -471,8 +541,11 @@ static int s2mpu_init(void)
 	 * Program all S2MPUs powered on at boot. Note that they may not be in
 	 * the blocking reset state as the bootloader may have programmed them.
 	 */
-	for_each_powered_s2mpu(dev)
-		initialize_with_mpt(dev, &kvm_hyp_host_mpt);
+	for_each_powered_s2mpu(dev) {
+		ret = initialize_with_mpt(dev, &kvm_hyp_host_mpt);
+		if (ret)
+			return ret;
+	}
 	return 0;
 }
 
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 00111f237de38..79c33815267b7 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -13,10 +13,6 @@
 #include <asm/kvm_mmu.h>
 #include <asm/kvm_s2mpu.h>
 
-#define CTX_CFG_ENTRY(ctxid, nr_ctx, vid) \
-	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
-	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
-
 struct s2mpu_irq_info {
 	struct device *dev;
 	void __iomem *va;
@@ -81,59 +77,6 @@ static irqreturn_t s2mpu_irq_handler(int irq, void *data)
 	return ret;
 }
 
-static u32 gen_ctx_cfg_valid_vid(struct platform_device *pdev,
-				 unsigned int num_ctx, u32 vid_bmap)
-{
-	u8 ctx_vid[NR_CTX_IDS] = { 0 };
-	unsigned int vid, ctx = 0;
-
-	/* Check NUM_CONTEXT value is within bounds. This should not happen. */
-	if (WARN_ON(num_ctx > NR_CTX_IDS))
-		num_ctx = NR_CTX_IDS;
-
-	while (vid_bmap) {
-		/* Break if we cannot allocate more. */
-		if (ctx >= num_ctx) {
-			dev_warn(&pdev->dev,
-				 "could not allocate all context IDs, DMA may be blocked (VID bitmap: 0x%x)",
-				 vid_bmap);
-			break;
-		}
-
-		vid = __ffs(vid_bmap);
-		vid_bmap &= ~BIT(vid);
-		ctx_vid[ctx++] = vid;
-	}
-
-	/* The following loop was unrolled so bitmasks are constant. */
-	BUILD_BUG_ON(NR_CTX_IDS != 8);
-	return CTX_CFG_ENTRY(0, ctx, ctx_vid[0])
-	     | CTX_CFG_ENTRY(1, ctx, ctx_vid[1])
-	     | CTX_CFG_ENTRY(2, ctx, ctx_vid[2])
-	     | CTX_CFG_ENTRY(3, ctx, ctx_vid[3])
-	     | CTX_CFG_ENTRY(4, ctx, ctx_vid[4])
-	     | CTX_CFG_ENTRY(5, ctx, ctx_vid[5])
-	     | CTX_CFG_ENTRY(6, ctx, ctx_vid[6])
-	     | CTX_CFG_ENTRY(7, ctx, ctx_vid[7]);
-}
-
-static int s2mpu_probe_v9(struct platform_device *pdev, void __iomem *kaddr,
-			  struct s2mpu *info)
-{
-	unsigned int num_ctx;
-	u32 ssmt_valid_vid_bmap;
-
-	ssmt_valid_vid_bmap = ALL_VIDS_BITMAP;
-	num_ctx = readl_relaxed(kaddr + REG_NS_NUM_CONTEXT) & NUM_CONTEXT_MASK;
-	info->context_cfg_valid_vid = gen_ctx_cfg_valid_vid(pdev, num_ctx, ssmt_valid_vid_bmap);
-	if (!info->context_cfg_valid_vid) {
-		dev_err(&pdev->dev, "failed to allocate context IDs");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 /*
  * Parse interrupt information from DT and if found, register IRQ handler.
  * This is considered optional and will not fail even if the initialization is
@@ -232,20 +175,6 @@ static int s2mpu_probe(struct platform_device *pdev)
 	 */
 	s2mpu_probe_irq(pdev, kaddr);
 
-	info->version = readl_relaxed(kaddr + REG_NS_VERSION);
-	switch (info->version & VERSION_CHECK_MASK) {
-	case S2MPU_VERSION_8:
-		break;
-	case S2MPU_VERSION_9:
-		ret = s2mpu_probe_v9(pdev, kaddr, info);
-		if (ret)
-			return ret;
-		break;
-	default:
-		dev_err(&pdev->dev, "unexpected version 0x%08x", info->version);
-		return -EINVAL;
-	}
-
 	/* Insert successfully parsed devices to a list later copied to hyp. */
 	list_add_tail(&entry->list, &s2mpu_list);
 	kvm_hyp_nr_s2mpus++;
-- 
GitLab


From 167332a9fa748f7d9fd08643d0df5bbe5078f26d Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 11:04:28 +0000
Subject: [PATCH 4437/4878] ANDROID: KVM: arm64: s2mpu: Remove all EL1 code

EL2 S2MPU driver relied on EL1 code which parsed the DT and populated
EL2 driver data before deprivileging of the host. The driver is now
moving to later initialization from kernel modules, which will take over
the role of parsing the DT and power management. Remove the unused code.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I96542ceeec4fcf1040658779a922363b1e41e976
---
 arch/arm64/include/asm/kvm_host.h     |   7 -
 arch/arm64/include/asm/kvm_s2mpu.h    |   9 -
 arch/arm64/kvm/arm.c                  |   8 +-
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c |  25 +--
 arch/arm64/kvm/hyp/nvhe/setup.c       |   6 -
 arch/arm64/kvm/iommu/s2mpu.c          | 306 --------------------------
 6 files changed, 13 insertions(+), 348 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 929f347512450..626f8c708dc96 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -378,15 +378,8 @@ extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
 
 enum kvm_iommu_driver {
 	KVM_IOMMU_DRIVER_NONE,
-	KVM_IOMMU_DRIVER_S2MPU,
 };
 
-#ifdef CONFIG_KVM_S2MPU
-int kvm_s2mpu_init(void);
-#else
-static inline int kvm_s2mpu_init(void) { return -ENODEV; }
-#endif
-
 enum pkvm_iommu_driver_id {
 	PKVM_IOMMU_NR_DRIVERS,
 };
diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 3d541accf9825..0e262b0c032dc 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -189,15 +189,6 @@ enum mpt_update_flags {
 	MPT_UPDATE_L2 = BIT(1),
 };
 
-extern size_t kvm_nvhe_sym(kvm_hyp_nr_s2mpus);
-#define kvm_hyp_nr_s2mpus kvm_nvhe_sym(kvm_hyp_nr_s2mpus)
-
-extern struct s2mpu *kvm_nvhe_sym(kvm_hyp_s2mpus);
-#define kvm_hyp_s2mpus kvm_nvhe_sym(kvm_hyp_s2mpus)
-
-extern struct mpt kvm_nvhe_sym(kvm_hyp_host_mpt);
-#define kvm_hyp_host_mpt kvm_nvhe_sym(kvm_hyp_host_mpt)
-
 /* Set protection bits of SMPT in a given range without using memset. */
 static inline void __set_smpt_range_slow(u32 *smpt, size_t start_gb_byte,
 					 size_t end_gb_byte, enum mpt_prot prot)
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2eebcc682aa43..2790d37b4a1e9 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1873,13 +1873,7 @@ static bool init_psci_relay(void)
 
 static int init_stage2_iommu(void)
 {
-	int ret;
-
-	ret = kvm_s2mpu_init();
-	if (!ret)
-		return KVM_IOMMU_DRIVER_S2MPU;
-
-	return (ret == -ENODEV) ? KVM_IOMMU_DRIVER_NONE : ret;
+	return KVM_IOMMU_DRIVER_NONE;
 }
 
 static int init_subsystems(void)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index e0783369a41ba..3ffbc4578e6d6 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -25,7 +25,7 @@
 #define PA_MAX				((phys_addr_t)SZ_1G * NR_GIGABYTES)
 
 #define for_each_s2mpu(i) \
-	for ((i) = &kvm_hyp_s2mpus[0]; (i) != &kvm_hyp_s2mpus[kvm_hyp_nr_s2mpus]; (i)++)
+	for ((i) = &s2mpus[0]; (i) != &s2mpus[nr_s2mpus]; (i)++)
 
 #define for_each_powered_s2mpu(i) \
 	for_each_s2mpu((i)) if (is_powered_on((i)))
@@ -34,11 +34,10 @@
 	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
 	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
 
-size_t __ro_after_init		kvm_hyp_nr_s2mpus;
-struct s2mpu __ro_after_init	*kvm_hyp_s2mpus;
-struct mpt			kvm_hyp_host_mpt;
-
-static hyp_spinlock_t		s2mpu_lock;
+static size_t __ro_after_init		nr_s2mpus;
+static struct s2mpu __ro_after_init	*s2mpus;
+static struct mpt			host_mpt;
+static hyp_spinlock_t			s2mpu_lock;
 
 static bool is_version(struct s2mpu *dev, u32 version)
 {
@@ -351,7 +350,7 @@ static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size,
 		return;
 
 	hyp_spin_lock(&s2mpu_lock);
-	set_mpt_range_locked(&kvm_hyp_host_mpt,
+	set_mpt_range_locked(&host_mpt,
 			     ALIGN_DOWN(addr, SMPT_GRAN),
 			     ALIGN(addr + size, SMPT_GRAN) - 1,
 			     prot);
@@ -429,7 +428,7 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 
 			if (mode == SMC_MODE_POWER_UP) {
 				dev->power_state = S2MPU_POWER_ON;
-				ret = initialize_with_mpt(dev, &kvm_hyp_host_mpt);
+				ret = initialize_with_mpt(dev, &host_mpt);
 			} else {
 				ret = initialize_with_prot(dev, MPT_PROT_NONE);
 				dev->power_state = S2MPU_POWER_OFF;
@@ -514,16 +513,16 @@ static int s2mpu_init(void)
 	int ret;
 
 	/* Map data structures in EL2 stage-1. */
-	ret = pkvm_create_mappings(kvm_hyp_s2mpus,
-				   kvm_hyp_s2mpus + kvm_hyp_nr_s2mpus,
+	ret = pkvm_create_mappings(s2mpus,
+				   s2mpus + nr_s2mpus,
 				   PAGE_HYP);
 	if (ret)
 		return ret;
 
 	for_each_gb(gb) {
 		ret = pkvm_create_mappings(
-			kvm_hyp_host_mpt.fmpt[gb].smpt,
-			kvm_hyp_host_mpt.fmpt[gb].smpt + SMPT_NUM_WORDS,
+			host_mpt.fmpt[gb].smpt,
+			host_mpt.fmpt[gb].smpt + SMPT_NUM_WORDS,
 			PAGE_HYP);
 		if (ret)
 			return ret;
@@ -542,7 +541,7 @@ static int s2mpu_init(void)
 	 * the blocking reset state as the bootloader may have programmed them.
 	 */
 	for_each_powered_s2mpu(dev) {
-		ret = initialize_with_mpt(dev, &kvm_hyp_host_mpt);
+		ret = initialize_with_mpt(dev, &host_mpt);
 		if (ret)
 			return ret;
 	}
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 0d9950735e5d8..36544c24ad30d 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -284,12 +284,6 @@ static int select_iommu_ops(enum kvm_iommu_driver driver)
 	switch (driver) {
 	case KVM_IOMMU_DRIVER_NONE:
 		return 0;
-	case KVM_IOMMU_DRIVER_S2MPU:
-		if (IS_ENABLED(CONFIG_KVM_S2MPU)) {
-			kvm_iommu_ops = kvm_s2mpu_ops;
-			return 0;
-		}
-		break;
 	}
 
 	return -EINVAL;
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 79c33815267b7..496e75f76e569 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -4,311 +4,5 @@
  * Author: David Brazdil <dbrazdil@google.com>
  */
 
-#include <linux/io-64-nonatomic-hi-lo.h>
 #include <linux/kvm_host.h>
-#include <linux/list.h>
-#include <linux/of_platform.h>
-#include <linux/sort.h>
-
-#include <asm/kvm_mmu.h>
 #include <asm/kvm_s2mpu.h>
-
-struct s2mpu_irq_info {
-	struct device *dev;
-	void __iomem *va;
-};
-
-struct s2mpu_list_entry {
-	struct list_head list;
-	struct device *dev;
-	struct s2mpu info;
-};
-
-static LIST_HEAD(s2mpu_list);
-
-static irqreturn_t s2mpu_irq_handler(int irq, void *data)
-{
-	struct s2mpu_irq_info *info = data;
-	unsigned int vid;
-	u32 vid_bmap, fault_info;
-	phys_addr_t fault_pa;
-	const char *fault_type;
-	irqreturn_t ret = IRQ_NONE;
-
-	while ((vid_bmap = readl_relaxed(info->va + REG_NS_FAULT_STATUS))) {
-		WARN_ON_ONCE(vid_bmap & (~ALL_VIDS_BITMAP));
-		vid = __ffs(vid_bmap);
-
-		fault_pa = hi_lo_readq_relaxed(info->va + REG_NS_FAULT_PA_HIGH_LOW(vid));
-		fault_info = readl_relaxed(info->va + REG_NS_FAULT_INFO(vid));
-		WARN_ON(FIELD_GET(FAULT_INFO_VID_MASK, fault_info) != vid);
-
-		switch (FIELD_GET(FAULT_INFO_TYPE_MASK, fault_info)) {
-		case FAULT_INFO_TYPE_MPTW:
-			fault_type = "MPTW fault";
-			break;
-		case FAULT_INFO_TYPE_AP:
-			fault_type = "access permission fault";
-			break;
-		case FAULT_INFO_TYPE_CONTEXT:
-			fault_type = "context fault";
-			break;
-		default:
-			fault_type = "unknown fault";
-			break;
-		}
-
-		dev_err(info->dev, "\n"
-			"============== S2MPU FAULT DETECTED ==============\n"
-			"  PA=0x%pap, FAULT_INFO=0x%08x\n"
-			"  DIRECTION: %s, TYPE: %s\n"
-			"  VID=%u, REQ_LENGTH=%lu, REQ_AXI_ID=%lu\n"
-			"==================================================\n",
-			&fault_pa, fault_info,
-			(fault_info & FAULT_INFO_RW_BIT) ? "write" : "read",
-			fault_type, vid,
-			FIELD_GET(FAULT_INFO_LEN_MASK, fault_info),
-			FIELD_GET(FAULT_INFO_ID_MASK, fault_info));
-
-		writel_relaxed(BIT(vid), info->va + REG_NS_INTERRUPT_CLEAR);
-		ret = IRQ_HANDLED;
-	}
-
-	return ret;
-}
-
-/*
- * Parse interrupt information from DT and if found, register IRQ handler.
- * This is considered optional and will not fail even if the initialization is
- * unsuccessful. In that case the IRQ will remain masked.
- */
-static void s2mpu_probe_irq(struct platform_device *pdev, void __iomem *kaddr)
-{
-	struct s2mpu_irq_info *irq_info;
-	int ret, irq;
-
-	irq = platform_get_irq_optional(pdev, 0);
-
-	if (irq == -ENXIO)
-		return; /* No IRQ specified. */
-
-	if (irq < 0) {
-		/* IRQ specified but failed to parse. */
-		dev_err(&pdev->dev, "failed to parse IRQ, IRQ not enabled");
-		return;
-	}
-
-	irq_info = devm_kmalloc(&pdev->dev, sizeof(*irq_info), GFP_KERNEL);
-	if (!irq_info)
-		return;
-
-	*irq_info = (struct s2mpu_irq_info){
-		.dev = &pdev->dev,
-		.va = kaddr,
-	};
-
-	ret = devm_request_irq(&pdev->dev, irq, s2mpu_irq_handler, 0,
-			       dev_name(&pdev->dev), irq_info);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register IRQ, IRQ not enabled");
-		return;
-	}
-}
-
-static int s2mpu_probe(struct platform_device *pdev)
-{
-	struct resource *res;
-	void __iomem *kaddr;
-	size_t res_size;
-	struct s2mpu_list_entry *entry;
-	struct s2mpu *info;
-	int ret;
-
-	entry = devm_kzalloc(&pdev->dev, sizeof(*entry), GFP_KERNEL);
-	if (!entry)
-		return -ENOMEM;
-	entry->dev = &pdev->dev;
-	info = &entry->info;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "failed to parse 'reg'");
-		return -EINVAL;
-	}
-
-	/* devm_ioremap_resource internally calls devm_request_mem_region. */
-	kaddr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(kaddr)) {
-		dev_err(&pdev->dev, "could not ioremap resource: %ld",
-			PTR_ERR(kaddr));
-		return PTR_ERR(kaddr);
-	}
-
-	if (!PAGE_ALIGNED(res->start)) {
-		dev_err(&pdev->dev, "base address must be page-aligned (0x%llx)",
-			res->start);
-		return -EINVAL;
-	}
-	info->pa = res->start;
-
-	res_size = resource_size(res);
-	if (res_size != S2MPU_MMIO_SIZE) {
-		dev_err(&pdev->dev,
-			"unexpected device region size (expected=%u, actual=%lu)",
-			S2MPU_MMIO_SIZE, res_size);
-		return -EINVAL;
-	}
-
-	ret = of_property_read_u32(pdev->dev.of_node, "power-domain-id",
-				   &info->power_domain_id);
-	if (!ret) {
-		info->power_state = S2MPU_POWER_ON;
-	} else if (ret != -EINVAL) {
-		dev_err(&pdev->dev, "failed to parse power-domain-id: %d", ret);
-		return ret;
-	}
-
-	/*
-	 * Try to parse IRQ information. This is optional as it only affects
-	 * runtime fault reporting, and therefore errors do not fail the whole
-	 * driver initialization.
-	 */
-	s2mpu_probe_irq(pdev, kaddr);
-
-	/* Insert successfully parsed devices to a list later copied to hyp. */
-	list_add_tail(&entry->list, &s2mpu_list);
-	kvm_hyp_nr_s2mpus++;
-	return 0;
-}
-
-static const struct of_device_id of_table[] = {
-	{ .compatible = "google,s2mpu" },
-	{},
-};
-
-static struct platform_driver of_driver = {
-	.driver = {
-		.name = "kvm,s2mpu",
-		.of_match_table = of_table,
-	},
-};
-
-static struct s2mpu *alloc_s2mpu_array(void)
-{
-	unsigned int order;
-
-	order = get_order(kvm_hyp_nr_s2mpus * sizeof(struct s2mpu));
-	return (struct s2mpu *)__get_free_pages(GFP_KERNEL, order);
-}
-
-static void free_s2mpu_array(struct s2mpu *array)
-{
-	unsigned int order;
-
-	order = get_order(kvm_hyp_nr_s2mpus * sizeof(struct s2mpu));
-	free_pages((unsigned long)array, order);
-}
-
-static int cmp_s2mpu(const void *p1, const void *p2)
-{
-	const struct s2mpu *a = p1, *b = p2;
-
-	return (a->pa > b->pa) - (a->pa < b->pa);
-}
-
-static int create_s2mpu_array(struct s2mpu **array)
-{
-	struct s2mpu_list_entry *entry, *tmp;
-	size_t i;
-
-	*array = alloc_s2mpu_array();
-	if (!*array)
-		return -ENOMEM;
-
-	/* Copy list to hyp array and destroy the list in the process. */
-	i = 0;
-	list_for_each_entry_safe(entry, tmp, &s2mpu_list, list) {
-		(*array)[i++] = entry->info;
-		list_del(&entry->list);
-		devm_kfree(entry->dev, entry);
-	}
-	WARN_ON(i != kvm_hyp_nr_s2mpus);
-
-	/* Searching through the list assumes that it is sorted. */
-	sort(*array, kvm_hyp_nr_s2mpus, sizeof(struct s2mpu), cmp_s2mpu, NULL);
-
-	kvm_hyp_s2mpus = kern_hyp_va(*array);
-	return 0;
-}
-
-static int alloc_smpts(struct mpt *mpt)
-{
-	unsigned int gb;
-
-	for_each_gb(gb) {
-		/* The returned buffer is aligned to its size, as required. */
-		mpt->fmpt[gb].smpt = (u32 *)__get_free_pages(GFP_KERNEL, SMPT_ORDER);
-		if (!mpt->fmpt[gb].smpt)
-			return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void free_smpts(struct mpt *mpt)
-{
-	unsigned int gb;
-
-	for_each_gb(gb)
-		free_pages((unsigned long)mpt->fmpt[gb].smpt, SMPT_ORDER);
-}
-
-static int init_host_mpt(struct mpt *mpt)
-{
-	unsigned int gb;
-	int ret;
-
-	ret = alloc_smpts(mpt);
-	if (ret) {
-		kvm_err("Cannot allocate memory for S2MPU host MPT");
-		return ret;
-	}
-
-	/* Initialize the host MPT. Use 1G mappings with RW permissions. */
-	for_each_gb(gb) {
-		kvm_hyp_host_mpt.fmpt[gb] = (struct fmpt){
-			.gran_1g = true,
-			.prot = MPT_PROT_RW,
-			.smpt = kern_hyp_va(mpt->fmpt[gb].smpt),
-		};
-	}
-	return 0;
-}
-
-int kvm_s2mpu_init(void)
-{
-	struct s2mpu *s2mpus = NULL;
-	struct mpt mpt = {};
-	int ret;
-
-	ret = platform_driver_probe(&of_driver, s2mpu_probe);
-	if (ret)
-		goto out;
-
-	ret = create_s2mpu_array(&s2mpus);
-	if (ret)
-		goto out;
-
-	ret = init_host_mpt(&mpt);
-	if (ret)
-		goto out;
-
-	kvm_info("S2MPU driver initialized\n");
-
-out:
-	if (ret) {
-		free_s2mpu_array(s2mpus);
-		free_smpts(&mpt);
-	}
-	return ret;
-}
-- 
GitLab


From a1ed8a1881f44cecaa1f73ffff36e4584ab37b07 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 21:35:53 +0000
Subject: [PATCH 4438/4878] ANDROID: KVM: arm64: s2mpu: Replace struct s2mpu
 with pkvm_iommu

Replace all uses of 'struct s2mpu' with the generic 'struct pkvm_iommu'.
'struct s2mpu_drv_data' is created to accommodate driver-specific values
associated with 'struct pkvm_iommu' and allocated by the generic code.

These changes are safe because the S2MPU code is currently unused.
The EL1 code that initialized it had been removed.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ib12b64ffa3281be83440e33cdd032d80df6e4868
---
 arch/arm64/include/asm/kvm_s2mpu.h    |  15 ----
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 100 ++++++++++++--------------
 2 files changed, 47 insertions(+), 68 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 0e262b0c032dc..3c61842a25eec 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -144,21 +144,6 @@ enum s2mpu_version {
 	S2MPU_VERSION_9 = 0x20000000,
 };
 
-enum s2mpu_power_state {
-	S2MPU_POWER_ALWAYS_ON = 0,
-	S2MPU_POWER_ON,
-	S2MPU_POWER_OFF,
-};
-
-struct s2mpu {
-	phys_addr_t pa;
-	void __iomem *va;
-	u32 version;
-	enum s2mpu_power_state power_state;
-	u32 power_domain_id;
-	u32 context_cfg_valid_vid;
-};
-
 enum mpt_prot {
 	MPT_PROT_NONE	= 0,
 	MPT_PROT_R	= BIT(0),
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 3ffbc4578e6d6..202440d8d5b71 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -34,52 +34,44 @@
 	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
 	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
 
-static size_t __ro_after_init		nr_s2mpus;
-static struct s2mpu __ro_after_init	*s2mpus;
-static struct mpt			host_mpt;
-static hyp_spinlock_t			s2mpu_lock;
+static size_t __ro_after_init			nr_s2mpus;
+static struct pkvm_iommu __ro_after_init	*s2mpus;
+static struct mpt				host_mpt;
+static hyp_spinlock_t				s2mpu_lock;
+
+struct s2mpu_drv_data {
+	u32 version;
+	u32 context_cfg_valid_vid;
+};
 
-static bool is_version(struct s2mpu *dev, u32 version)
+static bool is_version(struct pkvm_iommu *dev, u32 version)
 {
-	return (dev->version & VERSION_CHECK_MASK) == version;
+	struct s2mpu_drv_data *data = (struct s2mpu_drv_data *)dev->data;
+
+	return (data->version & VERSION_CHECK_MASK) == version;
 }
 
-static bool is_powered_on(struct s2mpu *dev)
+static bool is_powered_on(struct pkvm_iommu *dev)
 {
-	switch (dev->power_state) {
-	case S2MPU_POWER_ALWAYS_ON:
-	case S2MPU_POWER_ON:
-		return true;
-	case S2MPU_POWER_OFF:
-		return false;
-	default:
-		BUG();
-	}
+	return dev->powered;
 }
 
-static bool is_in_power_domain(struct s2mpu *dev, u64 power_domain_id)
+static bool is_in_power_domain(struct pkvm_iommu *dev, u64 power_domain_id)
 {
-	switch (dev->power_state) {
-	case S2MPU_POWER_ALWAYS_ON:
-		return false;
-	case S2MPU_POWER_ON:
-	case S2MPU_POWER_OFF:
-		return dev->power_domain_id == power_domain_id;
-	default:
-		BUG();
-	}
+	return false;
 }
 
-static u32 __context_cfg_valid_vid(struct s2mpu *dev, u32 vid_bmap)
+static u32 __context_cfg_valid_vid(struct pkvm_iommu *dev, u32 vid_bmap)
 {
+	struct s2mpu_drv_data *data = (struct s2mpu_drv_data *)dev->data;
 	u8 ctx_vid[NR_CTX_IDS] = { 0 };
 	unsigned int vid, ctx = 0;
 	unsigned int num_ctx;
 	u32 res;
 
 	/* Only initialize once. */
-	if (dev->context_cfg_valid_vid)
-		return dev->context_cfg_valid_vid;
+	if (data->context_cfg_valid_vid)
+		return data->context_cfg_valid_vid;
 
 	num_ctx = readl_relaxed(dev->va + REG_NS_NUM_CONTEXT) & NUM_CONTEXT_MASK;
 	while (vid_bmap) {
@@ -103,11 +95,11 @@ static u32 __context_cfg_valid_vid(struct s2mpu *dev, u32 vid_bmap)
 	    | CTX_CFG_ENTRY(6, ctx, ctx_vid[6])
 	    | CTX_CFG_ENTRY(7, ctx, ctx_vid[7]);
 
-	dev->context_cfg_valid_vid = res;
+	data->context_cfg_valid_vid = res;
 	return res;
 }
 
-static int __initialize_v9(struct s2mpu *dev)
+static int __initialize_v9(struct pkvm_iommu *dev)
 {
 	u32 ssmt_valid_vid_bmap, ctx_cfg;
 
@@ -126,12 +118,14 @@ static int __initialize_v9(struct s2mpu *dev)
 	return 0;
 }
 
-static int __initialize(struct s2mpu *dev)
+static int __initialize(struct pkvm_iommu *dev)
 {
-	if (!dev->version)
-		dev->version = readl_relaxed(dev->va + REG_NS_VERSION);
+	struct s2mpu_drv_data *data = (struct s2mpu_drv_data *)dev->data;
+
+	if (!data->version)
+		data->version = readl_relaxed(dev->va + REG_NS_VERSION);
 
-	switch (dev->version & VERSION_CHECK_MASK) {
+	switch (data->version & VERSION_CHECK_MASK) {
 	case S2MPU_VERSION_8:
 		return 0;
 	case S2MPU_VERSION_9:
@@ -141,7 +135,7 @@ static int __initialize(struct s2mpu *dev)
 	}
 }
 
-static void __set_control_regs(struct s2mpu *dev)
+static void __set_control_regs(struct pkvm_iommu *dev)
 {
 	u32 ctrl0 = 0, irq_vids;
 
@@ -181,7 +175,7 @@ static void __wait_while(void __iomem *addr, u32 mask)
 		continue;
 }
 
-static void __wait_for_invalidation_complete(struct s2mpu *dev)
+static void __wait_for_invalidation_complete(struct pkvm_iommu *dev)
 {
 	/* Must not access SFRs while S2MPU is busy invalidating (v9 only). */
 	if (is_version(dev, S2MPU_VERSION_9)) {
@@ -190,13 +184,13 @@ static void __wait_for_invalidation_complete(struct s2mpu *dev)
 	}
 }
 
-static void __all_invalidation(struct s2mpu *dev)
+static void __all_invalidation(struct pkvm_iommu *dev)
 {
 	writel_relaxed(INVALIDATION_INVALIDATE, dev->va + REG_NS_ALL_INVALIDATION);
 	__wait_for_invalidation_complete(dev);
 }
 
-static void __range_invalidation(struct s2mpu *dev, phys_addr_t first_byte,
+static void __range_invalidation(struct pkvm_iommu *dev, phys_addr_t first_byte,
 				 phys_addr_t last_byte)
 {
 	u32 start_ppn = first_byte >> RANGE_INVALIDATION_PPN_SHIFT;
@@ -208,14 +202,14 @@ static void __range_invalidation(struct s2mpu *dev, phys_addr_t first_byte,
 	__wait_for_invalidation_complete(dev);
 }
 
-static void __set_l1entry_attr_with_prot(struct s2mpu *dev, unsigned int gb,
+static void __set_l1entry_attr_with_prot(struct pkvm_iommu *dev, unsigned int gb,
 					 unsigned int vid, enum mpt_prot prot)
 {
 	writel_relaxed(L1ENTRY_ATTR_1G(prot),
 		       dev->va + REG_NS_L1ENTRY_ATTR(vid, gb));
 }
 
-static void __set_l1entry_attr_with_fmpt(struct s2mpu *dev, unsigned int gb,
+static void __set_l1entry_attr_with_fmpt(struct pkvm_iommu *dev, unsigned int gb,
 					 unsigned int vid, struct fmpt *fmpt)
 {
 	if (fmpt->gran_1g) {
@@ -227,7 +221,7 @@ static void __set_l1entry_attr_with_fmpt(struct s2mpu *dev, unsigned int gb,
 	}
 }
 
-static void __set_l1entry_l2table_addr(struct s2mpu *dev, unsigned int gb,
+static void __set_l1entry_l2table_addr(struct pkvm_iommu *dev, unsigned int gb,
 				       unsigned int vid, phys_addr_t addr)
 {
 	/* Order against writes to the SMPT. */
@@ -239,7 +233,7 @@ static void __set_l1entry_l2table_addr(struct s2mpu *dev, unsigned int gb,
  * Initialize S2MPU device and set all GB regions to 1G granularity with
  * given protection bits.
  */
-static int initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
+static int initialize_with_prot(struct pkvm_iommu *dev, enum mpt_prot prot)
 {
 	unsigned int gb, vid;
 	int ret;
@@ -261,7 +255,7 @@ static int initialize_with_prot(struct s2mpu *dev, enum mpt_prot prot)
  * Initialize S2MPU device, set L2 table addresses and configure L1TABLE_ATTR
  * registers according to the given MPT struct.
  */
-static int initialize_with_mpt(struct s2mpu *dev, struct mpt *mpt)
+static int initialize_with_mpt(struct pkvm_iommu *dev, struct mpt *mpt)
 {
 	unsigned int gb, vid;
 	struct fmpt *fmpt;
@@ -294,7 +288,7 @@ static void set_mpt_range_locked(struct mpt *mpt, phys_addr_t first_byte,
 	unsigned int last_gb = last_byte / SZ_1G;
 	size_t start_gb_byte, end_gb_byte;
 	unsigned int gb, vid;
-	struct s2mpu *dev;
+	struct pkvm_iommu *dev;
 	struct fmpt *fmpt;
 	enum mpt_update_flags flags;
 
@@ -360,7 +354,7 @@ static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size,
 static int s2mpu_host_stage2_adjust_mmio_range(phys_addr_t addr, phys_addr_t *start,
 					       phys_addr_t *end)
 {
-	struct s2mpu *dev;
+	struct pkvm_iommu *dev;
 	phys_addr_t dev_start, dev_end, int_start, int_end;
 
 	/* Find the PA interval in the non-empty, sorted list of S2MPUs. */
@@ -393,7 +387,7 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 	DECLARE_REG(u64, group, host_ctxt, 3);
 
 	struct arm_smccc_res res;
-	struct s2mpu *dev;
+	struct pkvm_iommu *dev;
 	int ret;
 
 	if (fn != SMC_CMD_PREPARE_PD_ONOFF)
@@ -427,11 +421,11 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 				continue;
 
 			if (mode == SMC_MODE_POWER_UP) {
-				dev->power_state = S2MPU_POWER_ON;
+				dev->powered = true;
 				ret = initialize_with_mpt(dev, &host_mpt);
 			} else {
 				ret = initialize_with_prot(dev, MPT_PROT_NONE);
-				dev->power_state = S2MPU_POWER_OFF;
+				dev->powered = false;
 			}
 		}
 	}
@@ -441,9 +435,9 @@ static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 	return true;  /* SMC handled */
 }
 
-static struct s2mpu *find_s2mpu_by_addr(phys_addr_t addr)
+static struct pkvm_iommu *find_s2mpu_by_addr(phys_addr_t addr)
 {
-	struct s2mpu *dev;
+	struct pkvm_iommu *dev;
 
 	for_each_s2mpu(dev) {
 		if (dev->pa <= addr && addr < (dev->pa + S2MPU_MMIO_SIZE))
@@ -482,7 +476,7 @@ static bool s2mpu_host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt,
 					 phys_addr_t fault_pa, unsigned int len,
 					 bool is_write, int rd)
 {
-	struct s2mpu *dev;
+	struct pkvm_iommu *dev;
 	size_t off;
 	u32 mask;
 
@@ -508,7 +502,7 @@ static bool s2mpu_host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt,
 
 static int s2mpu_init(void)
 {
-	struct s2mpu *dev;
+	struct pkvm_iommu *dev;
 	unsigned int gb;
 	int ret;
 
-- 
GitLab


From 3da3f51b335de90b134efc3f8029ee6c769197f2 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 18:12:51 +0000
Subject: [PATCH 4439/4878] ANDROID: KVM: arm64: s2mpu: Remove
 host_stage2_adjust_mmio_range

The function is superseded by the generic
pkvm_iommu_host_stage2_adjust_range, remove it.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I7d138a3c2e2497bdc19e6e6e95b7870ac48d890e
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 29 ---------------------------
 1 file changed, 29 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 202440d8d5b71..afa17a80d5929 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -351,34 +351,6 @@ static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size,
 	hyp_spin_unlock(&s2mpu_lock);
 }
 
-static int s2mpu_host_stage2_adjust_mmio_range(phys_addr_t addr, phys_addr_t *start,
-					       phys_addr_t *end)
-{
-	struct pkvm_iommu *dev;
-	phys_addr_t dev_start, dev_end, int_start, int_end;
-
-	/* Find the PA interval in the non-empty, sorted list of S2MPUs. */
-	int_start = 0;
-	for_each_s2mpu(dev) {
-		dev_start = dev->pa;
-		dev_end = dev_start + S2MPU_MMIO_SIZE;
-		int_end = dev_start;
-
-		if (dev_start <= addr && addr < dev_end)
-			return -EPERM;
-
-		if (int_start <= addr && addr < int_end)
-			break;
-
-		int_start = dev_end;
-		int_end = PA_MAX;
-	}
-
-	*start = max(*start, int_start);
-	*end = min(*end, int_end);
-	return 0;
-}
-
 static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(u64, fn, host_ctxt, 0);
@@ -547,5 +519,4 @@ const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
 	.host_smc_handler = s2mpu_host_smc_handler,
 	.host_mmio_dabt_handler = s2mpu_host_mmio_dabt_handler,
 	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
-	.host_stage2_adjust_mmio_range = s2mpu_host_stage2_adjust_mmio_range,
 };
-- 
GitLab


From 41707102f4fa94757ce9999e1555827512bd5192 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 15:01:28 +0000
Subject: [PATCH 4440/4878] ANDROID: KVM: arm64: s2mpu: Add driver initializer

Create 'struct pkvm_iommu_ops' for the S2MPU and a new driver ID to the
list of IOMMU drivers. Implement the 'init' callback, accepting donated
memory from the host to back SMPTs. If the donation is successful,
the SMPTs are assigned to 'host_mpt'.

Export 'pkvm_iommu_s2mpu_register' for a kernel module to call to
register an S2MPU device. First call to this function will also
run the global S2MPU driver initializer.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I3d1aaf8535114beae956993674a2b436414f07c4
---
 arch/arm64/include/asm/kvm_host.h       |  3 +
 arch/arm64/include/asm/kvm_s2mpu.h      |  3 +-
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  2 +
 arch/arm64/kvm/hyp/nvhe/iommu.c         |  2 +
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c   | 82 ++++++++++++++++---------
 arch/arm64/kvm/iommu/s2mpu.c            | 78 +++++++++++++++++++++++
 6 files changed, 139 insertions(+), 31 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 626f8c708dc96..69465035cff9c 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -381,6 +381,7 @@ enum kvm_iommu_driver {
 };
 
 enum pkvm_iommu_driver_id {
+	PKVM_IOMMU_DRIVER_S2MPU,
 	PKVM_IOMMU_NR_DRIVERS,
 };
 
@@ -395,6 +396,8 @@ int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
 int pkvm_iommu_suspend(struct device *dev);
 int pkvm_iommu_resume(struct device *dev);
 
+int pkvm_iommu_s2mpu_register(struct device *dev, phys_addr_t pa);
+
 struct vcpu_reset_state {
 	unsigned long	pc;
 	unsigned long	r0;
diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 3c61842a25eec..0e322ede84218 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -123,8 +123,9 @@ static_assert(SMPT_GRAN <= PAGE_SIZE);
 #define SMPT_ELEMS_PER_WORD			(SMPT_WORD_SIZE * SMPT_ELEMS_PER_BYTE)
 #define SMPT_WORD_BYTE_RANGE			(SMPT_GRAN * SMPT_ELEMS_PER_WORD)
 #define SMPT_NUM_ELEMS				(SZ_1G / SMPT_GRAN)
-#define SMPT_NUM_WORDS				(SMPT_SIZE / SMPT_WORD_SIZE)
 #define SMPT_SIZE				(SMPT_NUM_ELEMS / SMPT_ELEMS_PER_BYTE)
+#define SMPT_NUM_WORDS				(SMPT_SIZE / SMPT_WORD_SIZE)
+#define SMPT_NUM_PAGES				(SMPT_SIZE / PAGE_SIZE)
 #define SMPT_ORDER				get_order(SMPT_SIZE)
 
 /*
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 75a4790a8a5d3..c8907c9116737 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -80,6 +80,8 @@ bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 void pkvm_iommu_host_stage2_idmap(phys_addr_t start, phys_addr_t end,
 				  enum kvm_pgtable_prot prot);
 
+extern const struct pkvm_iommu_ops pkvm_s2mpu_ops;
+
 struct kvm_iommu_ops {
 	int (*init)(void);
 	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 80d85b4422333..9b659abc79570 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -63,6 +63,8 @@ static inline struct pkvm_iommu_driver *get_driver(enum pkvm_iommu_driver_id id)
 static const struct pkvm_iommu_ops *get_driver_ops(enum pkvm_iommu_driver_id id)
 {
 	switch (id) {
+	case PKVM_IOMMU_DRIVER_S2MPU:
+		return IS_ENABLED(CONFIG_KVM_S2MPU) ? &pkvm_s2mpu_ops : NULL;
 	default:
 		return NULL;
 	}
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index afa17a80d5929..6bcea2c5fe6b8 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -472,50 +472,72 @@ static bool s2mpu_host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt,
 	return true;
 }
 
-static int s2mpu_init(void)
+static int s2mpu_init(void *data, size_t size)
 {
-	struct pkvm_iommu *dev;
+	struct mpt in_mpt;
+	u32 *smpt;
+	phys_addr_t pa;
 	unsigned int gb;
-	int ret;
+	int ret = 0;
 
-	/* Map data structures in EL2 stage-1. */
-	ret = pkvm_create_mappings(s2mpus,
-				   s2mpus + nr_s2mpus,
-				   PAGE_HYP);
-	if (ret)
-		return ret;
+	if (size != sizeof(in_mpt))
+		return -EINVAL;
+
+	/* The host can concurrently modify 'data'. Copy it to avoid TOCTOU. */
+	memcpy(&in_mpt, data, sizeof(in_mpt));
 
+	/* Take ownership of all SMPT buffers. This will also map them in. */
 	for_each_gb(gb) {
-		ret = pkvm_create_mappings(
-			host_mpt.fmpt[gb].smpt,
-			host_mpt.fmpt[gb].smpt + SMPT_NUM_WORDS,
-			PAGE_HYP);
+		smpt = kern_hyp_va(in_mpt.fmpt[gb].smpt);
+		pa = __hyp_pa(smpt);
+
+		if (!IS_ALIGNED(pa, SMPT_SIZE)) {
+			ret = -EINVAL;
+			break;
+		}
+
+		ret = __pkvm_host_donate_hyp(pa >> PAGE_SHIFT, SMPT_NUM_PAGES);
 		if (ret)
-			return ret;
-	}
+			break;
 
-	/* Map S2MPU MMIO regions in EL2 stage-1. */
-	for_each_s2mpu(dev) {
-		dev->va = (void __iomem *)__pkvm_create_private_mapping(
-			dev->pa, S2MPU_MMIO_SIZE, PAGE_HYP_DEVICE);
-		if (IS_ERR_OR_NULL(dev->va))
-			return PTR_ERR(dev->va);
+		host_mpt.fmpt[gb] = (struct fmpt){
+			.smpt = smpt,
+			.gran_1g = true,
+			.prot = MPT_PROT_NONE,
+		};
 	}
 
-	/*
-	 * Program all S2MPUs powered on at boot. Note that they may not be in
-	 * the blocking reset state as the bootloader may have programmed them.
-	 */
-	for_each_powered_s2mpu(dev) {
-		ret = initialize_with_mpt(dev, &host_mpt);
-		if (ret)
-			return ret;
+	/* Try to return memory back if there was an error. */
+	if (ret) {
+		for_each_gb(gb) {
+			smpt = host_mpt.fmpt[gb].smpt;
+			if (!smpt)
+				break;
+
+			WARN_ON(__pkvm_hyp_donate_host(__hyp_pa(smpt) >> PAGE_SHIFT,
+						       SMPT_NUM_PAGES));
+		}
+		memset(&host_mpt, 0, sizeof(host_mpt));
 	}
+
+	return ret;
+}
+
+static int s2mpu_validate(phys_addr_t pa, size_t size)
+{
+	if (size != S2MPU_MMIO_SIZE)
+		return -EINVAL;
+
 	return 0;
 }
 
-const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
+const struct pkvm_iommu_ops pkvm_s2mpu_ops = (struct pkvm_iommu_ops){
 	.init = s2mpu_init,
+	.validate = s2mpu_validate,
+	.data_size = sizeof(struct s2mpu_drv_data),
+};
+
+const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
 	.host_smc_handler = s2mpu_host_smc_handler,
 	.host_mmio_dabt_handler = s2mpu_host_mmio_dabt_handler,
 	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 496e75f76e569..be2b1ad094808 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -6,3 +6,81 @@
 
 #include <linux/kvm_host.h>
 #include <asm/kvm_s2mpu.h>
+
+static int init_s2mpu_driver(void)
+{
+	static DEFINE_MUTEX(lock);
+	static bool init_done;
+
+	struct mpt *mpt;
+	unsigned int gb;
+	unsigned long addr;
+	u64 pfn;
+	int ret = 0;
+
+	mutex_lock(&lock);
+	if (init_done)
+		goto out;
+
+	/* Allocate a page for driver data. Must fit MPT descriptor. */
+	BUILD_BUG_ON(sizeof(*mpt) > PAGE_SIZE);
+	addr = __get_free_page(GFP_KERNEL);
+	if (!addr) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	mpt = (struct mpt *)addr;
+
+	/* Allocate SMPT buffers. */
+	for_each_gb(gb) {
+		addr = __get_free_pages(GFP_KERNEL, SMPT_ORDER);
+		if (!addr) {
+			ret = -ENOMEM;
+			goto out_free;
+		}
+		mpt->fmpt[gb].smpt = (u32 *)addr;
+	}
+
+	/* Share MPT descriptor with hyp. */
+	pfn = __pa(mpt) >> PAGE_SHIFT;
+	ret = kvm_call_hyp_nvhe(__pkvm_host_share_hyp, pfn);
+	if (ret)
+		goto out_free;
+
+	/* Hypercall to initialize EL2 driver. */
+	ret = pkvm_iommu_driver_init(PKVM_IOMMU_DRIVER_S2MPU, mpt, sizeof(*mpt));
+	if (ret)
+		goto out_unshare;
+
+	init_done = true;
+
+out_unshare:
+	WARN_ON(kvm_call_hyp_nvhe(__pkvm_host_unshare_hyp, pfn));
+out_free:
+	/* TODO - will driver return the memory? */
+	if (ret) {
+		for_each_gb(gb)
+			free_pages((unsigned long)mpt->fmpt[gb].smpt, SMPT_ORDER);
+		free_page((unsigned long)mpt);
+	}
+out:
+	mutex_unlock(&lock);
+	return ret;
+}
+
+int pkvm_iommu_s2mpu_register(struct device *dev, phys_addr_t addr)
+{
+	int ret;
+
+	if (!is_protected_kvm_enabled())
+		return -ENODEV;
+
+	ret = init_s2mpu_driver();
+	if (ret)
+		return ret;
+
+	return pkvm_iommu_register(dev, PKVM_IOMMU_DRIVER_S2MPU,
+				   addr, S2MPU_MMIO_SIZE);
+}
+EXPORT_SYMBOL_GPL(pkvm_iommu_s2mpu_register);
-- 
GitLab


From 39d559ad46ebd1416d2d7c9041400f92c2c0f618 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 21:40:32 +0000
Subject: [PATCH 4441/4878] ANDROID: KVM: arm64: s2mpu: Replace SMC handler
 with PM callbacks

The host is now expected to notify EL2 about PM state changes of
individual IOMMU devices. Remove the old code that intercepted SMCs
and instead rely on callbacks from the core IOMMU code.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I2dd49836c01e405562ba62c00efc711f084d5963
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 75 +++++++--------------------
 1 file changed, 19 insertions(+), 56 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 6bcea2c5fe6b8..51c26ea93f19f 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -56,11 +56,6 @@ static bool is_powered_on(struct pkvm_iommu *dev)
 	return dev->powered;
 }
 
-static bool is_in_power_domain(struct pkvm_iommu *dev, u64 power_domain_id)
-{
-	return false;
-}
-
 static u32 __context_cfg_valid_vid(struct pkvm_iommu *dev, u32 vid_bmap)
 {
 	struct s2mpu_drv_data *data = (struct s2mpu_drv_data *)dev->data;
@@ -351,60 +346,27 @@ static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size,
 	hyp_spin_unlock(&s2mpu_lock);
 }
 
-static bool s2mpu_host_smc_handler(struct kvm_cpu_context *host_ctxt)
+static int s2mpu_resume(struct pkvm_iommu *dev)
 {
-	DECLARE_REG(u64, fn, host_ctxt, 0);
-	DECLARE_REG(u64, mode, host_ctxt, 1);
-	DECLARE_REG(u64, domain_id, host_ctxt, 2);
-	DECLARE_REG(u64, group, host_ctxt, 3);
-
-	struct arm_smccc_res res;
-	struct pkvm_iommu *dev;
-	int ret;
-
-	if (fn != SMC_CMD_PREPARE_PD_ONOFF)
-		return false; /* SMC not handled */
-
 	/*
-	 * Host is notifying EL3 that a power domain was turned on/off.
-	 * Use this SMC as a trigger to program the S2MPUs.
-	 * Note that the host may be malicious and issue this SMC arbitrarily.
-	 *
-	 * Power on:
-	 * It is paramount that the S2MPU reset state is enabled and blocking
-	 * all traffic. That way the host is forced to issue a power-on SMC to
-	 * unblock the S2MPUs.
-	 *
-	 * Power down:
-	 * A power-down SMC is a hint for hyp to stop updating the S2MPU, lest
-	 * writes to powered-down MMIO registers produce SErrors in the host.
-	 * However, hyp must perform one last update - putting the S2MPUs back
-	 * to their blocking reset state - in case the host does not actually
-	 * power them down and continues issuing DMA traffic.
+	 * Initialize the S2MPU with the host stage-2 MPT. It is paramount
+	 * that the S2MPU reset state is enabled and blocking all traffic,
+	 * otherwise the host would not be forced to call the resume HVC
+	 * before issuing DMA traffic.
 	 */
+	return initialize_with_mpt(dev, &host_mpt);
+}
 
-	hyp_spin_lock(&s2mpu_lock);
-	arm_smccc_1_1_smc(fn, mode, domain_id, group, &res);
-	ret = res.a0;
-
-	if (ret == SMCCC_RET_SUCCESS) {
-		for_each_s2mpu(dev) {
-			if (!is_in_power_domain(dev, domain_id))
-				continue;
-
-			if (mode == SMC_MODE_POWER_UP) {
-				dev->powered = true;
-				ret = initialize_with_mpt(dev, &host_mpt);
-			} else {
-				ret = initialize_with_prot(dev, MPT_PROT_NONE);
-				dev->powered = false;
-			}
-		}
-	}
-	hyp_spin_unlock(&s2mpu_lock);
-
-	cpu_reg(host_ctxt, 0) = ret;
-	return true;  /* SMC handled */
+static int s2mpu_suspend(struct pkvm_iommu *dev)
+{
+	/*
+	 * Stop updating the S2MPU when the host informs us about the intention
+	 * to suspend it. Writes to powered-down MMIO registers would trigger
+	 * SErrors in EL1 otherwise. However, hyp must put S2MPU back to
+	 * blocking state first, in case the host does not actually power it
+	 * down and continues issuing DMA traffic.
+	 */
+	return initialize_with_prot(dev, MPT_PROT_NONE);
 }
 
 static struct pkvm_iommu *find_s2mpu_by_addr(phys_addr_t addr)
@@ -534,11 +496,12 @@ static int s2mpu_validate(phys_addr_t pa, size_t size)
 const struct pkvm_iommu_ops pkvm_s2mpu_ops = (struct pkvm_iommu_ops){
 	.init = s2mpu_init,
 	.validate = s2mpu_validate,
+	.resume = s2mpu_resume,
+	.suspend = s2mpu_suspend,
 	.data_size = sizeof(struct s2mpu_drv_data),
 };
 
 const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
-	.host_smc_handler = s2mpu_host_smc_handler,
 	.host_mmio_dabt_handler = s2mpu_host_mmio_dabt_handler,
 	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
 };
-- 
GitLab


From 667c7af5808ad6009bfe6e3e86f251421c79e96f Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 22:10:20 +0000
Subject: [PATCH 4442/4878] ANDROID: KVM: arm64: s2mpu: Replace DABT handler
 with callback

Previously the S2MPU DABT handler would be called directly from the host
DABT handler and it would look up the corresponding S2MPU device. Now the
lookup is done in the generic IOMMU DABT handler and only the actual
S2MPU register access is left to the driver itself.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I5236cf01b9e1dcc65a00081797a13ee92a4e263b
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 31 +++++++--------------------
 1 file changed, 8 insertions(+), 23 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 51c26ea93f19f..cd621190120f9 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -369,17 +369,6 @@ static int s2mpu_suspend(struct pkvm_iommu *dev)
 	return initialize_with_prot(dev, MPT_PROT_NONE);
 }
 
-static struct pkvm_iommu *find_s2mpu_by_addr(phys_addr_t addr)
-{
-	struct pkvm_iommu *dev;
-
-	for_each_s2mpu(dev) {
-		if (dev->pa <= addr && addr < (dev->pa + S2MPU_MMIO_SIZE))
-			return dev;
-	}
-	return NULL;
-}
-
 static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
 {
 	const u32 no_access  = 0;
@@ -406,23 +395,19 @@ static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
 	return no_access;
 }
 
-static bool s2mpu_host_mmio_dabt_handler(struct kvm_cpu_context *host_ctxt,
-					 phys_addr_t fault_pa, unsigned int len,
-					 bool is_write, int rd)
+static bool s2mpu_host_dabt_handler(struct pkvm_iommu *dev,
+				    struct kvm_cpu_context *host_ctxt,
+				    u32 esr, size_t off)
 {
-	struct pkvm_iommu *dev;
-	size_t off;
+	bool is_write = esr & ESR_ELx_WNR;
+	unsigned int len = BIT((esr & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT);
+	int rd = (esr & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
 	u32 mask;
 
 	/* Only handle MMIO access with u32 size and alignment. */
-	if ((len != sizeof(u32)) || (fault_pa & (sizeof(u32) - 1)))
-		return false;
-
-	dev = find_s2mpu_by_addr(fault_pa);
-	if (!dev || !is_powered_on(dev))
+	if ((len != sizeof(u32)) || (off & (sizeof(u32) - 1)))
 		return false;
 
-	off = fault_pa - dev->pa;
 	mask = host_mmio_reg_access_mask(off, is_write);
 	if (!mask)
 		return false;
@@ -498,10 +483,10 @@ const struct pkvm_iommu_ops pkvm_s2mpu_ops = (struct pkvm_iommu_ops){
 	.validate = s2mpu_validate,
 	.resume = s2mpu_resume,
 	.suspend = s2mpu_suspend,
+	.host_dabt_handler = s2mpu_host_dabt_handler,
 	.data_size = sizeof(struct s2mpu_drv_data),
 };
 
 const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
-	.host_mmio_dabt_handler = s2mpu_host_mmio_dabt_handler,
 	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
 };
-- 
GitLab


From 4c2ce4d16cc63f3d03da8411b876e9cc1fa3c52f Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 22:40:09 +0000
Subject: [PATCH 4443/4878] ANDROID: KVM: arm64: s2mpu: Move mpt_update_flags
 into FMPT

Core SMPT manipulation code returns mpt_update_flags, signalling whether
the caller should flush the dcache (MPT_UPDATE_L2) or write new L1ATTR
values to S2MPU MMIO registers (MPT_UPDATE_L1).

In preparation for splitting the code into a driver-global and
per-device portions, store the value in the corresponding FMPT.
As long as the two code portions are called from a single critical
section, the FMPT value is guaranteed to not change.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Iec06697e8826b0dba682476b39cf64acd6337166
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 42 +++++++++++++++-----------
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c |  7 ++---
 arch/arm64/kvm/iommu/test_kvm_s2mpu.c | 43 +++++++++------------------
 3 files changed, 42 insertions(+), 50 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 0e322ede84218..4d517bc1d0ebf 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -160,21 +160,22 @@ static const u64 mpt_prot_doubleword[] = {
 	[MPT_PROT_RW]   = 0xffffffffffffffff,
 };
 
+enum mpt_update_flags {
+	MPT_UPDATE_L1 = BIT(0),
+	MPT_UPDATE_L2 = BIT(1),
+};
+
 struct fmpt {
 	u32 *smpt;
 	bool gran_1g;
 	enum mpt_prot prot;
+	enum mpt_update_flags flags;
 };
 
 struct mpt {
 	struct fmpt fmpt[NR_GIGABYTES];
 };
 
-enum mpt_update_flags {
-	MPT_UPDATE_L1 = BIT(0),
-	MPT_UPDATE_L2 = BIT(1),
-};
-
 /* Set protection bits of SMPT in a given range without using memset. */
 static inline void __set_smpt_range_slow(u32 *smpt, size_t start_gb_byte,
 					 size_t end_gb_byte, enum mpt_prot prot)
@@ -254,24 +255,28 @@ static inline bool __is_smpt_uniform(u32 *smpt, enum mpt_prot prot)
  * Returns flags specifying whether L1/L2 changes need to be made visible
  * to the device.
  */
-static inline enum mpt_update_flags
-__set_fmpt_range(struct fmpt *fmpt, size_t start_gb_byte, size_t end_gb_byte,
-		 enum mpt_prot prot)
+static inline void __set_fmpt_range(struct fmpt *fmpt, size_t start_gb_byte,
+				    size_t end_gb_byte, enum mpt_prot prot)
 {
 	if (start_gb_byte == 0 && end_gb_byte >= SZ_1G) {
 		/* Update covers the entire GB region. */
-		if (fmpt->gran_1g && fmpt->prot == prot)
-			return 0;
+		if (fmpt->gran_1g && fmpt->prot == prot) {
+			fmpt->flags = 0;
+			return;
+		}
 
 		fmpt->gran_1g = true;
 		fmpt->prot = prot;
-		return MPT_UPDATE_L1;
+		fmpt->flags = MPT_UPDATE_L1;
+		return;
 	}
 
 	if (fmpt->gran_1g) {
 		/* GB region currently uses 1G mapping. */
-		if (fmpt->prot == prot)
-			return 0;
+		if (fmpt->prot == prot) {
+			fmpt->flags = 0;
+			return;
+		}
 
 		/*
 		 * Range has different mapping than the rest of the GB.
@@ -281,19 +286,22 @@ __set_fmpt_range(struct fmpt *fmpt, size_t start_gb_byte, size_t end_gb_byte,
 		__set_smpt_range(fmpt->smpt, 0, start_gb_byte, fmpt->prot);
 		__set_smpt_range(fmpt->smpt, start_gb_byte, end_gb_byte, prot);
 		__set_smpt_range(fmpt->smpt, end_gb_byte, SZ_1G, fmpt->prot);
-		return MPT_UPDATE_L1 | MPT_UPDATE_L2;
+		fmpt->flags = MPT_UPDATE_L1 | MPT_UPDATE_L2;
+		return;
 	}
 
 	/* GB region currently uses PAGE_SIZE mapping. */
 	__set_smpt_range(fmpt->smpt, start_gb_byte, end_gb_byte, prot);
 
 	/* Check if the entire GB region has the same prot bits. */
-	if (!__is_smpt_uniform(fmpt->smpt, prot))
-		return MPT_UPDATE_L2;
+	if (!__is_smpt_uniform(fmpt->smpt, prot)) {
+		fmpt->flags = MPT_UPDATE_L2;
+		return;
+	}
 
 	fmpt->gran_1g = true;
 	fmpt->prot = prot;
-	return MPT_UPDATE_L1;
+	fmpt->flags = MPT_UPDATE_L1;
 }
 
 #endif /* __ARM64_KVM_S2MPU_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index cd621190120f9..a1001f8f9aafd 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -285,19 +285,18 @@ static void set_mpt_range_locked(struct mpt *mpt, phys_addr_t first_byte,
 	unsigned int gb, vid;
 	struct pkvm_iommu *dev;
 	struct fmpt *fmpt;
-	enum mpt_update_flags flags;
 
 	for_each_gb_in_range(gb, first_gb, last_gb) {
 		fmpt = &mpt->fmpt[gb];
 		start_gb_byte = (gb == first_gb) ? first_byte % SZ_1G : 0;
 		end_gb_byte = (gb == last_gb) ? (last_byte % SZ_1G) + 1 : SZ_1G;
 
-		flags = __set_fmpt_range(fmpt, start_gb_byte, end_gb_byte, prot);
+		__set_fmpt_range(fmpt, start_gb_byte, end_gb_byte, prot);
 
-		if (flags & MPT_UPDATE_L2)
+		if (fmpt->flags & MPT_UPDATE_L2)
 			kvm_flush_dcache_to_poc(fmpt->smpt, SMPT_SIZE);
 
-		if (flags & MPT_UPDATE_L1) {
+		if (fmpt->flags & MPT_UPDATE_L1) {
 			for_each_powered_s2mpu(dev) {
 				for_each_vid(vid)
 					__set_l1entry_attr_with_fmpt(dev, gb, vid, fmpt);
diff --git a/arch/arm64/kvm/iommu/test_kvm_s2mpu.c b/arch/arm64/kvm/iommu/test_kvm_s2mpu.c
index 67cc37f00dee3..fbc500de588e0 100644
--- a/arch/arm64/kvm/iommu/test_kvm_s2mpu.c
+++ b/arch/arm64/kvm/iommu/test_kvm_s2mpu.c
@@ -14,10 +14,6 @@
 
 KSTM_MODULE_GLOBALS();
 
-/*
- * Kernel module for testing the foobinator
- */
-
 #define ASSERT(cond)							\
 	do {								\
 		if (!(cond)) {						\
@@ -77,11 +73,9 @@ static bool __init check_smpt(size_t start_byte, size_t end_byte,
 /* Start with 1G granule, overwrite the whole 1G. */
 static int __init test_set_fmpt__fmpt_to_fmpt_whole(void)
 {
-	enum mpt_update_flags flags;
-
 	init_fmpt(MPT_PROT_NONE, /*gran_1g*/ true);
-	flags = __set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
-	ASSERT(flags == MPT_UPDATE_L1);
+	__set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
+	ASSERT(g_fmpt.flags == MPT_UPDATE_L1);
 	ASSERT(g_fmpt.gran_1g);
 	ASSERT(g_fmpt.prot == MPT_PROT_R);
 	return 0;
@@ -90,11 +84,9 @@ static int __init test_set_fmpt__fmpt_to_fmpt_whole(void)
 /* Start with 1G granule, overwrite the whole 1G with the same prot. */
 static int __init test_set_fmpt__fmpt_no_change_whole(void)
 {
-	enum mpt_update_flags flags;
-
 	init_fmpt(MPT_PROT_R, /*gran_1g*/ true);
-	flags = __set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
-	ASSERT(flags == 0);
+	__set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
+	ASSERT(g_fmpt.flags == 0);
 	ASSERT(g_fmpt.gran_1g);
 	ASSERT(g_fmpt.prot == MPT_PROT_R);
 	return 0;
@@ -103,11 +95,9 @@ static int __init test_set_fmpt__fmpt_no_change_whole(void)
 /* Start with 1G granule, partially overwrite with the same prot. */
 static int __init test_set_fmpt__fmpt_no_change_partial(void)
 {
-	enum mpt_update_flags flags;
-
 	init_fmpt(MPT_PROT_R, /*gran_1g*/ true);
-	flags = __set_fmpt_range(&g_fmpt, 0, PAGE_SIZE, MPT_PROT_R);
-	ASSERT(flags == 0);
+	__set_fmpt_range(&g_fmpt, 0, PAGE_SIZE, MPT_PROT_R);
+	ASSERT(g_fmpt.flags == 0);
 	ASSERT(g_fmpt.gran_1g);
 	ASSERT(g_fmpt.prot == MPT_PROT_R);
 	return 0;
@@ -118,11 +108,10 @@ static int __init test_set_fmpt__fmpt_to_smpt(void)
 {
 	size_t start = 5 * SMPT_WORD_BYTE_RANGE / 2;
 	size_t end = 20 * SMPT_WORD_BYTE_RANGE;
-	enum mpt_update_flags flags;
 
 	init_fmpt(MPT_PROT_R, /*gran_1g*/ true);
-	flags = __set_fmpt_range(&g_fmpt, start, end, MPT_PROT_RW);
-	ASSERT(flags == (MPT_UPDATE_L1 | MPT_UPDATE_L2));
+	__set_fmpt_range(&g_fmpt, start, end, MPT_PROT_RW);
+	ASSERT(g_fmpt.flags == (MPT_UPDATE_L1 | MPT_UPDATE_L2));
 	ASSERT(!g_fmpt.gran_1g);
 	return check_smpt(start, end, MPT_PROT_R, MPT_PROT_RW) ? 0 : 1;
 }
@@ -130,11 +119,9 @@ static int __init test_set_fmpt__fmpt_to_smpt(void)
 /* Convert from PAGE_SIZE to 1G granule by overwriting the whole 1G. */
 static int __init test_set_fmpt__smpt_to_fmpt_whole(void)
 {
-	enum mpt_update_flags flags;
-
 	init_fmpt(MPT_PROT_NONE, /*gran_1g*/ false);
-	flags = __set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
-	ASSERT(flags == MPT_UPDATE_L1);
+	__set_fmpt_range(&g_fmpt, 0, SZ_1G, MPT_PROT_R);
+	ASSERT(g_fmpt.flags == MPT_UPDATE_L1);
 	ASSERT(g_fmpt.gran_1g);
 	ASSERT(g_fmpt.prot == MPT_PROT_R);
 	return 0;
@@ -145,15 +132,14 @@ static int __init test_set_fmpt__smpt_to_fmpt_partial(void)
 {
 	size_t start = 5 * SMPT_WORD_BYTE_RANGE / 2;
 	size_t end = 20 * SMPT_WORD_BYTE_RANGE;
-	enum mpt_update_flags flags;
 
 	/* Create SMPT with all PROT_W except a small subrange. */
 	init_fmpt(MPT_PROT_W, /*gran_1g*/ false);
 	__set_smpt_range(g_smpt, start, end, MPT_PROT_RW);
 
 	/* Fill the subrange with PROT_W to make the SMPT uniform. */
-	flags = __set_fmpt_range(&g_fmpt, start, end, MPT_PROT_W);
-	ASSERT(flags == MPT_UPDATE_L1);
+	__set_fmpt_range(&g_fmpt, start, end, MPT_PROT_W);
+	ASSERT(g_fmpt.flags == MPT_UPDATE_L1);
 	ASSERT(g_fmpt.gran_1g);
 	ASSERT(g_fmpt.prot == MPT_PROT_W);
 	return 0;
@@ -164,14 +150,13 @@ static int __init test_set_fmpt__smpt_to_smpt(void)
 {
 	size_t start = SZ_1G - SMPT_GRAN;
 	size_t end = SZ_1G;
-	enum mpt_update_flags flags;
 
 	init_fmpt(MPT_PROT_NONE, /*gran_1g*/ false);
 	ASSERT(__is_smpt_uniform(g_smpt, MPT_PROT_NONE));
 
 	/* Fill the subrange with PROT_W to make the SMPT uniform. */
-	flags = __set_fmpt_range(&g_fmpt, start, end, MPT_PROT_RW);
-	ASSERT(flags == MPT_UPDATE_L2);
+	__set_fmpt_range(&g_fmpt, start, end, MPT_PROT_RW);
+	ASSERT(g_fmpt.flags == MPT_UPDATE_L2);
 	ASSERT(!g_fmpt.gran_1g);
 	ASSERT(!__is_smpt_uniform(g_smpt, MPT_PROT_NONE));
 	return 0;
-- 
GitLab


From bb81c25bcbea0d1cc5457d958df6a39fa3546540 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Feb 2022 22:59:04 +0000
Subject: [PATCH 4444/4878] ANDROID: KVM: arm64: s2mpu: Implement host stage2
 idmap callbacks

Remove the existing 's2mpu_host_stage2_set_owner' hook implementation
and refactor the code to match the prepare/apply split of the generic
IOMMU callbacks for updating host stage-2 mappings.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: If550fe2c41198c320559c8125ec9ecc0479eb249
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 124 ++++++++++++--------------
 1 file changed, 59 insertions(+), 65 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index a1001f8f9aafd..3fbd68c842186 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -24,26 +24,23 @@
 
 #define PA_MAX				((phys_addr_t)SZ_1G * NR_GIGABYTES)
 
-#define for_each_s2mpu(i) \
-	for ((i) = &s2mpus[0]; (i) != &s2mpus[nr_s2mpus]; (i)++)
-
-#define for_each_powered_s2mpu(i) \
-	for_each_s2mpu((i)) if (is_powered_on((i)))
-
 #define CTX_CFG_ENTRY(ctxid, nr_ctx, vid) \
 	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
 	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
 
-static size_t __ro_after_init			nr_s2mpus;
-static struct pkvm_iommu __ro_after_init	*s2mpus;
-static struct mpt				host_mpt;
-static hyp_spinlock_t				s2mpu_lock;
-
 struct s2mpu_drv_data {
 	u32 version;
 	u32 context_cfg_valid_vid;
 };
 
+static struct mpt host_mpt;
+
+static inline enum mpt_prot prot_to_mpt(enum kvm_pgtable_prot prot)
+{
+	return ((prot & KVM_PGTABLE_PROT_R) ? MPT_PROT_R : 0) |
+	       ((prot & KVM_PGTABLE_PROT_W) ? MPT_PROT_W : 0);
+}
+
 static bool is_version(struct pkvm_iommu *dev, u32 version)
 {
 	struct s2mpu_drv_data *data = (struct s2mpu_drv_data *)dev->data;
@@ -51,11 +48,6 @@ static bool is_version(struct pkvm_iommu *dev, u32 version)
 	return (data->version & VERSION_CHECK_MASK) == version;
 }
 
-static bool is_powered_on(struct pkvm_iommu *dev)
-{
-	return dev->powered;
-}
-
 static u32 __context_cfg_valid_vid(struct pkvm_iommu *dev, u32 vid_bmap)
 {
 	struct s2mpu_drv_data *data = (struct s2mpu_drv_data *)dev->data;
@@ -272,18 +264,32 @@ static int initialize_with_mpt(struct pkvm_iommu *dev, struct mpt *mpt)
 	return 0;
 }
 
-/*
- * Set MPT protection bits set to 'prot' in the give byte range (page-aligned).
- * Update currently powered S2MPUs.
- */
-static void set_mpt_range_locked(struct mpt *mpt, phys_addr_t first_byte,
-				 phys_addr_t last_byte, enum mpt_prot prot)
+static bool to_valid_range(phys_addr_t *start, phys_addr_t *end)
+{
+	phys_addr_t new_start = *start;
+	phys_addr_t new_end = *end;
+
+	if (new_end > PA_MAX)
+		new_end = PA_MAX;
+
+	new_start = ALIGN_DOWN(new_start, SMPT_GRAN);
+	new_end = ALIGN(new_end, SMPT_GRAN);
+
+	if (new_start >= new_end)
+		return false;
+
+	*start = new_start;
+	*end = new_end;
+	return true;
+}
+
+static void __mpt_idmap_prepare(struct mpt *mpt, phys_addr_t first_byte,
+				phys_addr_t last_byte, enum mpt_prot prot)
 {
 	unsigned int first_gb = first_byte / SZ_1G;
 	unsigned int last_gb = last_byte / SZ_1G;
 	size_t start_gb_byte, end_gb_byte;
-	unsigned int gb, vid;
-	struct pkvm_iommu *dev;
+	unsigned int gb;
 	struct fmpt *fmpt;
 
 	for_each_gb_in_range(gb, first_gb, last_gb) {
@@ -295,54 +301,44 @@ static void set_mpt_range_locked(struct mpt *mpt, phys_addr_t first_byte,
 
 		if (fmpt->flags & MPT_UPDATE_L2)
 			kvm_flush_dcache_to_poc(fmpt->smpt, SMPT_SIZE);
-
-		if (fmpt->flags & MPT_UPDATE_L1) {
-			for_each_powered_s2mpu(dev) {
-				for_each_vid(vid)
-					__set_l1entry_attr_with_fmpt(dev, gb, vid, fmpt);
-			}
-		}
 	}
-
-	/* Invalidate range in all powered S2MPUs. */
-	for_each_powered_s2mpu(dev)
-		__range_invalidation(dev, first_byte, last_byte);
 }
 
-static void s2mpu_host_stage2_set_owner(phys_addr_t addr, size_t size,
-					pkvm_id owner_id)
+static void __mpt_idmap_apply(struct pkvm_iommu *dev, struct mpt *mpt,
+			      phys_addr_t first_byte, phys_addr_t last_byte)
 {
-	enum mpt_prot prot;
-
-	/* Grant access only to the default owner of the page table (ID=0). */
-	prot = owner_id == pkvm_host_id ? MPT_PROT_RW : MPT_PROT_NONE;
+	unsigned int first_gb = first_byte / SZ_1G;
+	unsigned int last_gb = last_byte / SZ_1G;
+	unsigned int gb, vid;
+	struct fmpt *fmpt;
 
-	/*
-	 * NOTE: The following code refers to 'end' as the exclusive upper
-	 * bound and 'last' as the inclusive one.
-	 */
+	for_each_gb_in_range(gb, first_gb, last_gb) {
+		fmpt = &mpt->fmpt[gb];
 
-	/*
-	 * Sanitize inputs with S2MPU-specific physical address space bounds.
-	 * Ownership change requests outside this boundary will be ignored.
-	 * The S2MPU also specifies that the PA region 4-34GB always maps to
-	 * PROT_NONE and the corresponding MMIO registers are read-only.
-	 * Ownership changes in this region will have no effect.
-	 */
+		if (fmpt->flags & MPT_UPDATE_L1) {
+			for_each_vid(vid)
+				__set_l1entry_attr_with_fmpt(dev, gb, vid, fmpt);
+		}
+	}
+	__range_invalidation(dev, first_byte, last_byte);
+}
 
-	if (addr >= PA_MAX)
+static void s2mpu_host_stage2_idmap_prepare(phys_addr_t start, phys_addr_t end,
+					    enum kvm_pgtable_prot prot)
+{
+	if (!to_valid_range(&start, &end))
 		return;
 
-	size = min(size, (size_t)(PA_MAX - addr));
-	if (size == 0)
+	__mpt_idmap_prepare(&host_mpt, start, end - 1, prot_to_mpt(prot));
+}
+
+static void s2mpu_host_stage2_idmap_apply(struct pkvm_iommu *dev,
+					  phys_addr_t start, phys_addr_t end)
+{
+	if (!to_valid_range(&start, &end))
 		return;
 
-	hyp_spin_lock(&s2mpu_lock);
-	set_mpt_range_locked(&host_mpt,
-			     ALIGN_DOWN(addr, SMPT_GRAN),
-			     ALIGN(addr + size, SMPT_GRAN) - 1,
-			     prot);
-	hyp_spin_unlock(&s2mpu_lock);
+	__mpt_idmap_apply(dev, &host_mpt, start, end - 1);
 }
 
 static int s2mpu_resume(struct pkvm_iommu *dev)
@@ -482,10 +478,8 @@ const struct pkvm_iommu_ops pkvm_s2mpu_ops = (struct pkvm_iommu_ops){
 	.validate = s2mpu_validate,
 	.resume = s2mpu_resume,
 	.suspend = s2mpu_suspend,
+	.host_stage2_idmap_prepare = s2mpu_host_stage2_idmap_prepare,
+	.host_stage2_idmap_apply = s2mpu_host_stage2_idmap_apply,
 	.host_dabt_handler = s2mpu_host_dabt_handler,
 	.data_size = sizeof(struct s2mpu_drv_data),
 };
-
-const struct kvm_iommu_ops kvm_s2mpu_ops = (struct kvm_iommu_ops){
-	.host_stage2_set_owner = s2mpu_host_stage2_set_owner,
-};
-- 
GitLab


From e900628cfca812f9f4c4c93754d91be16be4e466 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 23 Feb 2022 19:54:47 +0000
Subject: [PATCH 4445/4878] ANDROID: KVM: arm64: Remove unused IOMMU hooks,
 kvm_iommu_ops

With new generic IOMMU code in place, and with all S2MPU code
having been migrated to the new pkvm_iommu_ops callbacks, remove
all the now unused code.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I6abc7ef0f400250cbb38a673feb1db35116c3f69
---
 arch/arm64/include/asm/kvm_host.h       |  4 ----
 arch/arm64/include/asm/kvm_hyp.h        |  3 +--
 arch/arm64/kvm/arm.c                    | 15 +++------------
 arch/arm64/kvm/hyp/include/nvhe/iommu.h | 14 --------------
 arch/arm64/kvm/hyp/nvhe/hyp-main.c      |  7 +------
 arch/arm64/kvm/hyp/nvhe/setup.c         | 23 +----------------------
 6 files changed, 6 insertions(+), 60 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 69465035cff9c..71925671ea738 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -376,10 +376,6 @@ extern s64 kvm_nvhe_sym(hyp_physvirt_offset);
 extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
 #define hyp_cpu_logical_map CHOOSE_NVHE_SYM(hyp_cpu_logical_map)
 
-enum kvm_iommu_driver {
-	KVM_IOMMU_DRIVER_NONE,
-};
-
 enum pkvm_iommu_driver_id {
 	PKVM_IOMMU_DRIVER_S2MPU,
 	PKVM_IOMMU_NR_DRIVERS,
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 2f99074111aa2..dc9c66f3c94c0 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -110,8 +110,7 @@ void __noreturn __hyp_do_panic(struct kvm_cpu_context *host_ctxt, u64 spsr,
 void __pkvm_init_switch_pgd(phys_addr_t phys, unsigned long size,
 			    phys_addr_t pgd, void *sp, void *cont_fn);
 int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
-		unsigned long *per_cpu_base, u32 hyp_va_bits,
-		enum kvm_iommu_driver iommu_driver);
+		unsigned long *per_cpu_base, u32 hyp_va_bits);
 void __noreturn __host_enter(struct kvm_cpu_context *host_ctxt);
 #endif
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 2790d37b4a1e9..a353067f526b2 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1871,11 +1871,6 @@ static bool init_psci_relay(void)
 	return true;
 }
 
-static int init_stage2_iommu(void)
-{
-	return KVM_IOMMU_DRIVER_NONE;
-}
-
 static int init_subsystems(void)
 {
 	int err = 0;
@@ -1935,7 +1930,7 @@ static void teardown_hyp_mode(void)
 	}
 }
 
-static int do_pkvm_init(u32 hyp_va_bits, enum kvm_iommu_driver iommu_driver)
+static int do_pkvm_init(u32 hyp_va_bits)
 {
 	void *per_cpu_base = kvm_ksym_ref(kvm_arm_hyp_percpu_base);
 	int ret;
@@ -1944,7 +1939,7 @@ static int do_pkvm_init(u32 hyp_va_bits, enum kvm_iommu_driver iommu_driver)
 	cpu_hyp_init_context();
 	ret = kvm_call_hyp_nvhe(__pkvm_init, hyp_mem_base, hyp_mem_size,
 				num_possible_cpus(), kern_hyp_va(per_cpu_base),
-				hyp_va_bits, iommu_driver);
+				hyp_va_bits);
 	cpu_hyp_init_features();
 
 	/*
@@ -1976,11 +1971,7 @@ static int kvm_hyp_init_protection(u32 hyp_va_bits)
 	if (ret)
 		return ret;
 
-	ret = init_stage2_iommu();
-	if (ret < 0)
-		return ret;
-
-	ret = do_pkvm_init(hyp_va_bits, (enum kvm_iommu_driver)ret);
+	ret = do_pkvm_init(hyp_va_bits);
 	if (ret)
 		return ret;
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index c8907c9116737..2367fe153ad35 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -82,18 +82,4 @@ void pkvm_iommu_host_stage2_idmap(phys_addr_t start, phys_addr_t end,
 
 extern const struct pkvm_iommu_ops pkvm_s2mpu_ops;
 
-struct kvm_iommu_ops {
-	int (*init)(void);
-	bool (*host_smc_handler)(struct kvm_cpu_context *host_ctxt);
-	bool (*host_mmio_dabt_handler)(struct kvm_cpu_context *host_ctxt,
-				       phys_addr_t fault_pa, unsigned int len,
-				       bool is_write, int rd);
-	void (*host_stage2_set_owner)(phys_addr_t addr, size_t size, pkvm_id owner_id);
-	int (*host_stage2_adjust_mmio_range)(phys_addr_t addr, phys_addr_t *start,
-					     phys_addr_t *end);
-};
-
-extern struct kvm_iommu_ops kvm_iommu_ops;
-extern const struct kvm_iommu_ops kvm_s2mpu_ops;
-
 #endif	/* __ARM64_KVM_NVHE_IOMMU_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 5d7a3654af46a..fae3dd83bbdf4 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -47,8 +47,6 @@ static DEFINE_PER_CPU(struct pkvm_loaded_state, loaded_state);
 
 DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
 
-struct kvm_iommu_ops kvm_iommu_ops;
-
 void __kvm_hyp_host_forward_smc(struct kvm_cpu_context *host_ctxt);
 
 typedef void (*shadow_entry_exit_handler_fn)(struct kvm_vcpu *, struct kvm_vcpu *);
@@ -908,7 +906,6 @@ static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
 	DECLARE_REG(unsigned long, nr_cpus, host_ctxt, 3);
 	DECLARE_REG(unsigned long *, per_cpu_base, host_ctxt, 4);
 	DECLARE_REG(u32, hyp_va_bits, host_ctxt, 5);
-	DECLARE_REG(enum kvm_iommu_driver, iommu_driver, host_ctxt, 6);
 
 	/*
 	 * __pkvm_init() will return only if an error occurred, otherwise it
@@ -916,7 +913,7 @@ static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
 	 * with the host context directly.
 	 */
 	cpu_reg(host_ctxt, 1) = __pkvm_init(phys, size, nr_cpus, per_cpu_base,
-					    hyp_va_bits, iommu_driver);
+					    hyp_va_bits);
 }
 
 static void handle___pkvm_cpu_set_vector(struct kvm_cpu_context *host_ctxt)
@@ -1092,8 +1089,6 @@ static void handle_host_smc(struct kvm_cpu_context *host_ctxt)
 	bool handled;
 
 	handled = kvm_host_psci_handler(host_ctxt);
-	if (!handled && kvm_iommu_ops.host_smc_handler)
-		handled = kvm_iommu_ops.host_smc_handler(host_ctxt);
 	if (!handled)
 		handled = kvm_host_ffa_handler(host_ctxt);
 	if (!handled)
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 36544c24ad30d..4fa7ed90c9cc3 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -279,16 +279,6 @@ static int fix_hyp_pgtable_refcnt(void)
 				&walker);
 }
 
-static int select_iommu_ops(enum kvm_iommu_driver driver)
-{
-	switch (driver) {
-	case KVM_IOMMU_DRIVER_NONE:
-		return 0;
-	}
-
-	return -EINVAL;
-}
-
 void __noreturn __pkvm_init_finalise(void)
 {
 	struct kvm_host_data *host_data = this_cpu_ptr(&kvm_host_data);
@@ -318,12 +308,6 @@ void __noreturn __pkvm_init_finalise(void)
 	};
 	pkvm_pgtable.mm_ops = &pkvm_pgtable_mm_ops;
 
-	if (kvm_iommu_ops.init) {
-		ret = kvm_iommu_ops.init();
-		if (ret)
-			goto out;
-	}
-
 	ret = fix_host_ownership();
 	if (ret)
 		goto out;
@@ -350,8 +334,7 @@ out:
 }
 
 int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
-		unsigned long *per_cpu_base, u32 hyp_va_bits,
-		enum kvm_iommu_driver iommu_driver)
+		unsigned long *per_cpu_base, u32 hyp_va_bits)
 {
 	struct kvm_nvhe_init_params *params;
 	void *virt = hyp_phys_to_virt(phys);
@@ -374,10 +357,6 @@ int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
 	if (ret)
 		return ret;
 
-	ret = select_iommu_ops(iommu_driver);
-	if (ret)
-		return ret;
-
 	update_nvhe_init_params();
 
 	/* Jump in the idmap page to switch to the new page-tables */
-- 
GitLab


From 1b8ccf0263957b52649c42fa81a9f19cce308d0d Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 15 Feb 2022 00:00:27 +0000
Subject: [PATCH 4446/4878] ANDROID: Add pkvm_iommu_* symbols to aarch64 ABI

Add three new symbols to the aarch64 kernel ABI. These are to be
called from vendor modules to register an IOMMU with pKVM and
notify the hypervisor about its PM events.

New symbols:
  - pkvm_iommu_s2mpu_register
  - pkvm_iommu_suspend
  - pkvm_iommu_resume

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I9797326a54cba6abd1b233682379de10139c2303
---
 android/abi_gki_aarch64_generic | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 418ba2bac4577..db115f2488f31 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1511,6 +1511,9 @@
   pin_user_pages_fast
   pin_user_pages_remote
   pktgen_xfrm_outer_mode_output
+  pkvm_iommu_resume
+  pkvm_iommu_s2mpu_register
+  pkvm_iommu_suspend
   platform_bus_type
   platform_device_add
   platform_device_add_data
-- 
GitLab


From a9f29122d23a2ceaa45f937f3e9124f6b7bc9488 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 14 Mar 2022 15:46:01 +0000
Subject: [PATCH 4447/4878] ANDROID: update ABI representation

Leaf changes summary: 3 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 3 Added
functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added
variable

3 Added functions:

  [A] 'function int pkvm_iommu_resume(device*)'
  [A] 'function int pkvm_iommu_s2mpu_register(device*, phys_addr_t)'
  [A] 'function int pkvm_iommu_suspend(device*)'

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I7587f464315d0adddc75f1b18d1a7b93b7743c8d
---
 android/abi_gki_aarch64.xml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 4d635669e6617..1ef1666a0e505 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -2462,6 +2462,9 @@
       <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1cf7fcf'/>
       <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf4d722d'/>
       <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0113e4f'/>
+      <elf-symbol name='pkvm_iommu_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff696ab2'/>
+      <elf-symbol name='pkvm_iommu_s2mpu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d486258'/>
+      <elf-symbol name='pkvm_iommu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2554db42'/>
       <elf-symbol name='platform_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1f2d2e8'/>
       <elf-symbol name='platform_device_add_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb05eda59'/>
       <elf-symbol name='platform_device_add_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5988706b'/>
@@ -118406,6 +118409,19 @@
         <parameter type-id='0fbf3cfd' name='skb' filepath='net/xfrm/xfrm_output.c' line='405' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='pkvm_iommu_resume' mangled-name='pkvm_iommu_resume' filepath='arch/arm64/kvm/iommu.c' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu.c' line='51' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pkvm_iommu_s2mpu_register' mangled-name='pkvm_iommu_s2mpu_register' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_s2mpu_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='72' column='1'/>
+        <parameter type-id='2522883d' name='addr' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='72' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pkvm_iommu_suspend' mangled-name='pkvm_iommu_suspend' filepath='arch/arm64/kvm/iommu.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu.c' line='44' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <var-decl name='platform_bus' type-id='66e487eb' mangled-name='platform_bus' visibility='default' filepath='drivers/base/platform.c' line='38' column='1' elf-symbol-id='platform_bus'/>
       <var-decl name='platform_bus_type' type-id='b31bfc8a' mangled-name='platform_bus_type' visibility='default' filepath='drivers/base/platform.c' line='1360' column='1' elf-symbol-id='platform_bus_type'/>
       <function-decl name='platform_device_add' mangled-name='platform_device_add' filepath='drivers/base/platform.c' line='550' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='platform_device_add'>
-- 
GitLab


From 92f087f5251599b464e558f912f67cdc7f6229c6 Mon Sep 17 00:00:00 2001
From: Ramji Jiyani <ramjiyani@google.com>
Date: Mon, 2 Aug 2021 22:04:45 +0000
Subject: [PATCH 4448/4878] UPSTREAM: binder: Add invalid handle info in user
 error log

In the case of a failed transaction, only the thread and process id are
logged. Add the handle info for the reference to the target node in user
error log to aid debugging.

Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Link: https://lore.kernel.org/r/20210802220446.1938347-1-ramjiyani@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 186045972
(cherry picked from commit 1ae14df56cc3e87d56f3c159803a289021f8ef7d)
Signed-off-by: Ramji Jiyani <ramjiyani@google.com>
Change-Id: I874bab8f32bafcf6a5fb38669c60d1e968f50f59
---
 drivers/android/binder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 401b83110e326..bcf0ae355bc64 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2690,8 +2690,8 @@ static void binder_transaction(struct binder_proc *proc,
 						ref->node, &target_proc,
 						&return_error);
 			} else {
-				binder_user_error("%d:%d got transaction to invalid handle\n",
-						  proc->pid, thread->pid);
+				binder_user_error("%d:%d got transaction to invalid handle, %u\n",
+						  proc->pid, thread->pid, tr->target.handle);
 				return_error = BR_FAILED_REPLY;
 			}
 			binder_proc_unlock(proc);
-- 
GitLab


From 2aca919c877d0247f68f01cd9af6defb75d2abe9 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Thu, 10 Mar 2022 12:26:18 +0000
Subject: [PATCH 4449/4878] ANDROID: KVM: arm64: Avoid exposing shadow table
 internals outside of pkvm.c

There's no reason to make the internal shadow table data directly
accessible outside of pkvm.c, so make it all static and provide an
initialisation function to install the initial pages.

Bug: 216808671
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Idc0908796ebbd2b620494f5d4d6b6055455c8013
---
 arch/arm64/kvm/hyp/include/nvhe/pkvm.h |  3 +--
 arch/arm64/kvm/hyp/nvhe/pkvm.c         | 14 ++++++++++----
 arch/arm64/kvm/hyp/nvhe/setup.c        |  7 +++++--
 3 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
index e4983f5cbd0f8..80ecc831fc313 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/pkvm.h
@@ -60,11 +60,10 @@ static inline bool vcpu_is_protected(struct kvm_vcpu *vcpu)
 	return vcpu->arch.pkvm.shadow_vm->arch.pkvm.enabled;
 }
 
-extern struct kvm_shadow_vm **shadow_table;
-
 extern phys_addr_t pvmfw_base;
 extern phys_addr_t pvmfw_size;
 
+void hyp_shadow_table_init(void *tbl);
 int __pkvm_init_shadow(struct kvm *kvm, void *shadow_va, size_t size, void *pgd);
 int __pkvm_teardown_shadow(int shadow_handle);
 struct kvm_vcpu *get_shadow_vcpu(int shadow_handle, unsigned int vcpu_idx);
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 8bd9c525f2013..5b0a0e9d9c325 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -230,19 +230,25 @@ extern unsigned long hyp_nr_cpus;
  * Protects writes to shadow_table, num_shadow_entries, and next_shadow_alloc,
  * as well as reads and writes to last_shadow_vcpu_lookup.
  */
-DEFINE_HYP_SPINLOCK(shadow_lock);
+static DEFINE_HYP_SPINLOCK(shadow_lock);
 
 /*
  * The table of shadow entries for protected VMs in hyp.
  * Allocated at hyp initialization and setup.
  */
-struct kvm_shadow_vm **shadow_table;
+static struct kvm_shadow_vm **shadow_table;
 
 /* Current number of vms in the shadow table. */
-int num_shadow_entries;
+static int num_shadow_entries;
 
 /* The next entry index to try to allocate from. */
-int next_shadow_alloc;
+static int next_shadow_alloc;
+
+void hyp_shadow_table_init(void *tbl)
+{
+	WARN_ON(shadow_table);
+	shadow_table = tbl;
+}
 
 /*
  * Return the shadow vm corresponding to the handle.
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 4fa7ed90c9cc3..18638652f06d6 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -29,6 +29,7 @@ phys_addr_t pvmfw_size;
 			 (unsigned long)__per_cpu_start)
 
 static void *vmemmap_base;
+static void *shadow_table_base;
 static void *hyp_pgt_base;
 static void *host_s2_pgt_base;
 static void *ffa_proxy_pages;
@@ -47,8 +48,8 @@ static int divide_memory_pool(void *virt, unsigned long size)
 		return -ENOMEM;
 
 	nr_pages = hyp_shadow_table_pages(sizeof(struct kvm_shadow_vm));
-	shadow_table = hyp_early_alloc_contig(nr_pages);
-	if (!shadow_table)
+	shadow_table_base = hyp_early_alloc_contig(nr_pages);
+	if (!shadow_table_base)
 		return -ENOMEM;
 
 	nr_pages = hyp_s1_pgtable_pages();
@@ -323,6 +324,8 @@ void __noreturn __pkvm_init_finalise(void)
 	ret = hyp_ffa_init(ffa_proxy_pages);
 	if (ret)
 		goto out;
+
+	hyp_shadow_table_init(shadow_table_base);
 out:
 	/*
 	 * We tail-called to here from handle___pkvm_init() and will not return,
-- 
GitLab


From c7bd5ae906e833ecf6d579d1662a9df57f050ce2 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Thu, 10 Mar 2022 13:19:28 +0000
Subject: [PATCH 4450/4878] ANDROID: KVM: arm64: Push shadow table locking up
 to callers

The pKVM shadow table is protected by 'shadow_lock', however this lock
is only taken across relatively fine-grained calls when inserting and
removing entries from the table. This poses a problem for higher-level
functions such as __pkvm_init_shadow(), where a partially-initialised
shadow entry is made transiently visibly to get_shadow_vcpu() and could
potentially be loaded in an inconsistent state by another CPU.

Push the locking out of the insert/remove functions and up into
__pkvm_{init,teardown}_shadow() so that the shadow state always appears
to be consistent as long as the lock is held.

Bug: 216808671
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I74c563a539c1ce35f5da86a8281e47c7d435bd27
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 48 ++++++++++++----------------------
 1 file changed, 17 insertions(+), 31 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 5b0a0e9d9c325..6d1eeacc559bc 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -439,7 +439,7 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
 	return 0;
 }
 
-static bool exists_shadow(struct kvm *host_kvm)
+static bool __exists_shadow(struct kvm *host_kvm)
 {
 	int i;
 	int num_checked = 0;
@@ -463,13 +463,15 @@ static bool exists_shadow(struct kvm *host_kvm)
  * Return a unique handle to the protected VM on success,
  * negative error code on failure.
  */
-static int __insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
-			         size_t shadow_size)
+static int insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
+			       size_t shadow_size)
 {
 	struct kvm_s2_mmu *mmu = &vm->arch.mmu;
 	int shadow_handle;
 	int vmid;
 
+	hyp_assert_lock_held(&shadow_lock);
+
 	if (unlikely(num_shadow_entries >= KVM_MAX_PVMS))
 		return -ENOMEM;
 
@@ -481,7 +483,7 @@ static int __insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
 		return -EINVAL;
 
 	/* Check that a shadow hasn't been created before for this host KVM. */
-	if (unlikely(exists_shadow(kvm)))
+	if (unlikely(__exists_shadow(kvm)))
 		return -EEXIST;
 
 	/* Find the next free entry in the shadow table. */
@@ -509,34 +511,16 @@ static int __insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
 	return shadow_handle;
 }
 
-static int insert_shadow_table(struct kvm *kvm, struct kvm_shadow_vm *vm,
-			       size_t shadow_size)
-{
-	int ret;
-
-	hyp_spin_lock(&shadow_lock);
-	ret = __insert_shadow_table(kvm, vm, shadow_size);
-	hyp_spin_unlock(&shadow_lock);
-
-	return ret;
-}
-
 /*
  * Deallocate and remove the shadow table entry corresponding to the handle.
  */
-static void __remove_shadow_table(int shadow_handle)
+static void remove_shadow_table(int shadow_handle)
 {
+	hyp_assert_lock_held(&shadow_lock);
 	shadow_table[shadow_handle_to_index(shadow_handle)] = NULL;
 	num_shadow_entries--;
 }
 
-static void remove_shadow_table(int shadow_handle)
-{
-	hyp_spin_lock(&shadow_lock);
-	__remove_shadow_table(shadow_handle);
-	hyp_spin_unlock(&shadow_lock);
-}
-
 static size_t pkvm_get_shadow_size(int num_vcpus)
 {
 	/* Shadow space for the vm struct and all of its vcpu states. */
@@ -633,27 +617,29 @@ int __pkvm_init_shadow(struct kvm *kvm,
 	if (ret)
 		goto err_remove_pgd;
 
-	/* Add the entry to the shadow table. */
-	ret = insert_shadow_table(kvm, vm, shadow_size);
+	ret = init_shadow_structs(kvm, vm, pgd, nr_vcpus);
 	if (ret < 0)
 		goto err_unpin_host_vcpus;
 
-	ret = init_shadow_structs(kvm, vm, pgd, nr_vcpus);
+	/* Add the entry to the shadow table. */
+	hyp_spin_lock(&shadow_lock);
+	ret = insert_shadow_table(kvm, vm, shadow_size);
 	if (ret < 0)
-		goto err_remove_shadow_table;
+		goto err_unlock_unpin_host_vcpus;
 
 	ret = kvm_guest_prepare_stage2(vm, pgd);
 	if (ret)
 		goto err_remove_shadow_table;
 
+	hyp_spin_unlock(&shadow_lock);
 	return vm->shadow_handle;
 
 err_remove_shadow_table:
 	remove_shadow_table(vm->shadow_handle);
-
+err_unlock_unpin_host_vcpus:
+	hyp_spin_unlock(&shadow_lock);
 err_unpin_host_vcpus:
 	unpin_host_vcpus(vm->shadow_vcpus, nr_vcpus);
-
 err_remove_pgd:
 	WARN_ON(__pkvm_hyp_donate_host(hyp_virt_to_pfn(pgd), nr_pgd_pages));
 
@@ -692,7 +678,7 @@ int __pkvm_teardown_shadow(int shadow_handle)
 		goto err_unlock;
 	}
 
-	__remove_shadow_table(shadow_handle);
+	remove_shadow_table(shadow_handle);
 	hyp_spin_unlock(&shadow_lock);
 
 	/* Reclaim guest pages, and page-table pages */
-- 
GitLab


From f6498d73a50331502ea9d4391c879c90707cf008 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Mon, 14 Mar 2022 15:26:38 +0000
Subject: [PATCH 4451/4878] ANDROID: KVM: arm64: pkvm: Don't zero shared pages

The pKVM hypervisor currently zeroes all the pages mapped into guests
when tearing them down for confidentiality reasons. However, for pages
that are shared with the host this is unecessary at best as the content
of memory is already visible. This is particularly bad for non-protected
guests as all their memory is shared with the host by definition.

Add a new flag to distingish pages that solely need to be updated from
an ownership perspective and those that need to be zeroed.

NOTE: We should probably overhaul the teardown procedure at some point
to avoid the proliferation of those flags, but that would require
significant changes so we might not want that in Android 13.

Bug: 223678931
Change-Id: Icefc85a0bdcdf9958e9eb6871c794f68b06a007f
Signed-off-by: Quentin Perret <qperret@google.com>
---
 arch/arm64/kvm/hyp/include/nvhe/memory.h |  1 +
 arch/arm64/kvm/hyp/nvhe/mem_protect.c    | 25 ++++++++++++++++++++----
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/memory.h b/arch/arm64/kvm/hyp/include/nvhe/memory.h
index 0e64650e2f101..8fd0418e04ff3 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/memory.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/memory.h
@@ -12,6 +12,7 @@
  * page-table lock due to the lack of atomics at EL2.
  */
 #define HOST_PAGE_NEED_POISONING	BIT(0)
+#define HOST_PAGE_PENDING_RECLAIM	BIT(1)
 
 struct hyp_page {
 	unsigned short refcount;
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 771aca0fdf969..750eab9678f93 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -292,7 +292,17 @@ static int reclaim_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
 		return 0;
 
 	page = hyp_phys_to_page(kvm_pte_to_phys(pte));
-	page->flags |= HOST_PAGE_NEED_POISONING;
+	switch (pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte))) {
+	case PKVM_PAGE_OWNED:
+		page->flags |= HOST_PAGE_NEED_POISONING;
+		fallthrough;
+	case PKVM_PAGE_SHARED_BORROWED:
+	case PKVM_PAGE_SHARED_OWNED:
+		page->flags |= HOST_PAGE_PENDING_RECLAIM;
+		break;
+	default:
+		return -EPERM;
+	}
 
 	return 0;
 }
@@ -1873,16 +1883,23 @@ int __pkvm_host_reclaim_page(u64 pfn)
 		goto unlock;
 
 	page = hyp_phys_to_page(addr);
+	if (!(page->flags & HOST_PAGE_PENDING_RECLAIM)) {
+		ret = -EPERM;
+		goto unlock;
+	}
+
 	if (page->flags & HOST_PAGE_NEED_POISONING) {
 		ret = hyp_zero_page(addr);
 		if (ret)
 			goto unlock;
 		page->flags &= ~HOST_PAGE_NEED_POISONING;
-		ret = host_stage2_set_owner_locked(addr, PAGE_SIZE, pkvm_host_id);
-	} else {
-		ret = -EPERM;
 	}
 
+	ret = host_stage2_set_owner_locked(addr, PAGE_SIZE, pkvm_host_id);
+	if (ret)
+		goto unlock;
+	page->flags &= ~HOST_PAGE_PENDING_RECLAIM;
+
 unlock:
 	host_unlock_component();
 
-- 
GitLab


From 3dcc5d0b9d0cfd6f96d5d63bc9b560ab9d5e3fe2 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 11 Mar 2022 14:19:59 +0000
Subject: [PATCH 4452/4878] ANDROID: dm-bow: Protect Ranges fetched and erased
 from the RB tree

Bug: 195565510
Change-Id: Ic87a27d3ffe51b5290a7ff7a87fddd8305fd42af
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/md/dm-bow.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-bow.c b/drivers/md/dm-bow.c
index cfd1fa63ff971..e666ca01d2200 100644
--- a/drivers/md/dm-bow.c
+++ b/drivers/md/dm-bow.c
@@ -236,6 +236,7 @@ static void set_type(struct bow_context *bc, struct bow_range **br, int type)
 
 	(*br)->type = type;
 
+	mutex_lock(&bc->ranges_lock);
 	if (next->type == type) {
 		if (type == TRIMMED)
 			list_del(&next->trimmed_list);
@@ -249,6 +250,7 @@ static void set_type(struct bow_context *bc, struct bow_range **br, int type)
 		rb_erase(&(*br)->node, &bc->ranges);
 		kfree(*br);
 	}
+	mutex_unlock(&bc->ranges_lock);
 
 	*br = NULL;
 }
@@ -599,6 +601,7 @@ static void dm_bow_dtr(struct dm_target *ti)
 	struct bow_context *bc = (struct bow_context *) ti->private;
 	struct kobject *kobj;
 
+	mutex_lock(&bc->ranges_lock);
 	while (rb_first(&bc->ranges)) {
 		struct bow_range *br = container_of(rb_first(&bc->ranges),
 						    struct bow_range, node);
@@ -606,6 +609,8 @@ static void dm_bow_dtr(struct dm_target *ti)
 		rb_erase(&br->node, &bc->ranges);
 		kfree(br);
 	}
+	mutex_unlock(&bc->ranges_lock);
+
 	if (bc->workqueue)
 		destroy_workqueue(bc->workqueue);
 	if (bc->bufio)
@@ -1181,6 +1186,7 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 		return;
 	}
 
+	mutex_lock(&bc->ranges_lock);
 	for (i = rb_first(&bc->ranges); i; i = rb_next(i)) {
 		struct bow_range *br = container_of(i, struct bow_range, node);
 
@@ -1188,11 +1194,11 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 				    readable_type[br->type],
 				    (unsigned long long)br->sector);
 		if (result >= end)
-			return;
+			goto unlock;
 
 		result += scnprintf(result, end - result, "\n");
 		if (result >= end)
-			return;
+			goto unlock;
 
 		if (br->type == TRIMMED)
 			++trimmed_range_count;
@@ -1214,19 +1220,22 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 		if (!rb_next(i)) {
 			scnprintf(result, end - result,
 				  "\nERROR: Last range not of type TOP");
-			return;
+			goto unlock;
 		}
 
 		if (br->sector > range_top(br)) {
 			scnprintf(result, end - result,
 				  "\nERROR: sectors out of order");
-			return;
+			goto unlock;
 		}
 	}
 
 	if (trimmed_range_count != trimmed_list_length)
 		scnprintf(result, end - result,
 			  "\nERROR: not all trimmed ranges in trimmed list");
+
+unlock:
+	mutex_unlock(&bc->ranges_lock);
 }
 
 static void dm_bow_status(struct dm_target *ti, status_type_t type,
-- 
GitLab


From 12eb90098f8fd5761d8849385dcbf663844d2edf Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Tue, 15 Mar 2022 13:55:04 +0100
Subject: [PATCH 4453/4878] ANDROID: Add ieee80211_tx_prepare_skb symbol to
 android/abi_gki_aarch64_virtual_device

The 5.10.104 kernel release added the requirement to use
ieee80211_tx_prepare_skb() so add it to the virtual device symbol list
to keep the build working properly.

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function bool ieee80211_tx_prepare_skb(ieee80211_hw*, ieee80211_vif*, sk_buff*, int, ieee80211_sta**)'

Fixes: 97581b56b59f ("Linux 5.10.104")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id895880508e7ccd90e1f29048fc11a4ad9c2b84c
---
 android/abi_gki_aarch64.xml            | 212 +++++++++++++------------
 android/abi_gki_aarch64_virtual_device |   1 +
 2 files changed, 112 insertions(+), 101 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 1ef1666a0e505..16fcde74d857b 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -1789,6 +1789,7 @@
       <elf-symbol name='ieee80211_stop_tx_ba_cb_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf780e33'/>
       <elf-symbol name='ieee80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf38a065'/>
       <elf-symbol name='ieee80211_tx_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0798172'/>
+      <elf-symbol name='ieee80211_tx_prepare_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefb5b420'/>
       <elf-symbol name='ieee80211_tx_rate_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26e2a433'/>
       <elf-symbol name='ieee80211_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4866c846'/>
       <elf-symbol name='ieee80211_tx_status_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa401f3b5'/>
@@ -32232,6 +32233,7 @@
       <pointer-type-def type-id='8d2ce43f' size-in-bits='64' id='52ab0d0f'/>
       <pointer-type-def type-id='e44b8083' size-in-bits='64' id='52abf1d3'/>
       <pointer-type-def type-id='72c04684' size-in-bits='64' id='52af43ea'/>
+      <pointer-type-def type-id='f27bb1b0' size-in-bits='64' id='52b8956e'/>
       <pointer-type-def type-id='e09a048e' size-in-bits='64' id='52baee64'/>
       <class-decl name='attribute_container' size-in-bits='768' is-struct='yes' visibility='default' filepath='include/linux/attribute_container.h' line='16' column='1' id='52bea74f'>
         <data-member access='public' layout-offset-in-bits='0'>
@@ -105265,11 +105267,11 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10283' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='__cfg80211_alloc_reply_skb' mangled-name='__cfg80211_alloc_reply_skb' filepath='net/wireless/nl80211.c' line='13799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_reply_skb'>
-        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='13799' column='1'/>
-        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='13800' column='1'/>
-        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='13801' column='1'/>
-        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='13802' column='1'/>
+      <function-decl name='__cfg80211_alloc_reply_skb' mangled-name='__cfg80211_alloc_reply_skb' filepath='net/wireless/nl80211.c' line='13811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_reply_skb'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='13811' column='1'/>
+        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='13812' column='1'/>
+        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='13813' column='1'/>
+        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='13814' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
       <function-decl name='__cfg80211_send_event_skb' mangled-name='__cfg80211_send_event_skb' filepath='net/wireless/nl80211.c' line='10310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_send_event_skb'>
@@ -108497,9 +108499,9 @@
         <parameter type-id='185e765a' name='rate' filepath='net/wireless/util.c' line='1402' column='1'/>
         <return type-id='19c2251e'/>
       </function-decl>
-      <function-decl name='cfg80211_ch_switch_notify' mangled-name='cfg80211_ch_switch_notify' filepath='net/wireless/nl80211.c' line='17113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ch_switch_notify'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17113' column='1'/>
-        <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='17114' column='1'/>
+      <function-decl name='cfg80211_ch_switch_notify' mangled-name='cfg80211_ch_switch_notify' filepath='net/wireless/nl80211.c' line='17125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ch_switch_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17125' column='1'/>
+        <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='17126' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_chandef_create' mangled-name='cfg80211_chandef_create' filepath='net/wireless/chan.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_chandef_create'>
@@ -108514,11 +108516,11 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='791' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_del_sta_sinfo' mangled-name='cfg80211_del_sta_sinfo' filepath='net/wireless/nl80211.c' line='16485' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_del_sta_sinfo'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16485' column='1'/>
-        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16485' column='1'/>
-        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16486' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16486' column='1'/>
+      <function-decl name='cfg80211_del_sta_sinfo' mangled-name='cfg80211_del_sta_sinfo' filepath='net/wireless/nl80211.c' line='16497' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_del_sta_sinfo'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16497' column='1'/>
+        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16497' column='1'/>
+        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16498' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16498' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_disconnected' mangled-name='cfg80211_disconnected' filepath='net/wireless/sme.c' line='1142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_disconnected'>
@@ -108530,10 +108532,10 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1144' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17738' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17738' column='1'/>
-        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17739' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17740' column='1'/>
+      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17750' column='1'/>
+        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17751' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17752' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='cfg80211_find_elem_match' mangled-name='cfg80211_find_elem_match' filepath='net/wireless/scan.c' line='1216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_elem_match'>
@@ -108562,11 +108564,11 @@
         <parameter type-id='d2b455cb' name='privacy' filepath='net/wireless/scan.c' line='1417' column='1'/>
         <return type-id='bda81d86'/>
       </function-decl>
-      <function-decl name='cfg80211_gtk_rekey_notify' mangled-name='cfg80211_gtk_rekey_notify' filepath='net/wireless/nl80211.c' line='17004' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_gtk_rekey_notify'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17004' column='1'/>
-        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17004' column='1'/>
-        <parameter type-id='bbaf3419' name='replay_ctr' filepath='net/wireless/nl80211.c' line='17005' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17005' column='1'/>
+      <function-decl name='cfg80211_gtk_rekey_notify' mangled-name='cfg80211_gtk_rekey_notify' filepath='net/wireless/nl80211.c' line='17016' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_gtk_rekey_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17016' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17016' column='1'/>
+        <parameter type-id='bbaf3419' name='replay_ctr' filepath='net/wireless/nl80211.c' line='17017' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17017' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_ibss_joined' mangled-name='cfg80211_ibss_joined' filepath='net/wireless/ibss.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ibss_joined'>
@@ -108597,13 +108599,13 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/scan.c' line='2428' column='1'/>
         <return type-id='bda81d86'/>
       </function-decl>
-      <function-decl name='cfg80211_mgmt_tx_status' mangled-name='cfg80211_mgmt_tx_status' filepath='net/wireless/nl80211.c' line='16725' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_mgmt_tx_status'>
-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16725' column='1'/>
-        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16725' column='1'/>
-        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
-        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
-        <parameter type-id='b50a4934' name='ack' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16726' column='1'/>
+      <function-decl name='cfg80211_mgmt_tx_status' mangled-name='cfg80211_mgmt_tx_status' filepath='net/wireless/nl80211.c' line='16737' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_mgmt_tx_status'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16737' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16737' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
+        <parameter type-id='b50a4934' name='ack' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_michael_mic_failure' mangled-name='cfg80211_michael_mic_failure' filepath='net/wireless/mlme.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_michael_mic_failure'>
@@ -108615,19 +108617,19 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/mlme.c' line='204' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_new_sta' mangled-name='cfg80211_new_sta' filepath='net/wireless/nl80211.c' line='16461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_new_sta'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16461' column='1'/>
-        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16461' column='1'/>
-        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16462' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16462' column='1'/>
+      <function-decl name='cfg80211_new_sta' mangled-name='cfg80211_new_sta' filepath='net/wireless/nl80211.c' line='16473' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_new_sta'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16473' column='1'/>
+        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16473' column='1'/>
+        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16474' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16474' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_pmksa_candidate_notify' mangled-name='cfg80211_pmksa_candidate_notify' filepath='net/wireless/nl80211.c' line='17061' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_pmksa_candidate_notify'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17061' column='1'/>
-        <parameter type-id='95e97e5e' name='index' filepath='net/wireless/nl80211.c' line='17061' column='1'/>
-        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17062' column='1'/>
-        <parameter type-id='b50a4934' name='preauth' filepath='net/wireless/nl80211.c' line='17062' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17062' column='1'/>
+      <function-decl name='cfg80211_pmksa_candidate_notify' mangled-name='cfg80211_pmksa_candidate_notify' filepath='net/wireless/nl80211.c' line='17073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_pmksa_candidate_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17073' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='net/wireless/nl80211.c' line='17073' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
+        <parameter type-id='b50a4934' name='preauth' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_port_authorized' mangled-name='cfg80211_port_authorized' filepath='net/wireless/sme.c' line='1048' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_port_authorized'>
@@ -108641,19 +108643,19 @@
         <parameter type-id='bda81d86' name='pub' filepath='net/wireless/scan.c' line='2491' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='16421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16421' column='1'/>
-        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16421' column='1'/>
-        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16422' column='1'/>
-        <parameter type-id='f0981eeb' name='duration' filepath='net/wireless/nl80211.c' line='16423' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16423' column='1'/>
+      <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='16433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16433' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16433' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16434' column='1'/>
+        <parameter type-id='f0981eeb' name='duration' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_remain_on_channel_expired' mangled-name='cfg80211_remain_on_channel_expired' filepath='net/wireless/nl80211.c' line='16435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_remain_on_channel_expired'>
-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
-        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
-        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16436' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16437' column='1'/>
+      <function-decl name='cfg80211_remain_on_channel_expired' mangled-name='cfg80211_remain_on_channel_expired' filepath='net/wireless/nl80211.c' line='16447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_remain_on_channel_expired'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16447' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16447' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16448' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16449' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_roamed' mangled-name='cfg80211_roamed' filepath='net/wireless/sme.c' line='958' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_roamed'>
@@ -108671,10 +108673,10 @@
         <parameter type-id='19c2251e' name='flags' filepath='net/wireless/mlme.c' line='759' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='cfg80211_rx_unprot_mlme_mgmt' mangled-name='cfg80211_rx_unprot_mlme_mgmt' filepath='net/wireless/nl80211.c' line='15949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_unprot_mlme_mgmt'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15949' column='1'/>
-        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='15949' column='1'/>
-        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='15950' column='1'/>
+      <function-decl name='cfg80211_rx_unprot_mlme_mgmt' mangled-name='cfg80211_rx_unprot_mlme_mgmt' filepath='net/wireless/nl80211.c' line='15961' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_unprot_mlme_mgmt'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15961' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='15961' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='15962' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_scan_done' mangled-name='cfg80211_scan_done' filepath='net/wireless/scan.c' line='1000' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_scan_done'>
@@ -108703,12 +108705,12 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/core.c' line='1233' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17520' column='1'/>
-        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17520' column='1'/>
-        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17521' column='1'/>
-        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17522' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17522' column='1'/>
+      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17532' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17532' column='1'/>
+        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17532' column='1'/>
+        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17533' column='1'/>
+        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_unlink_bss' mangled-name='cfg80211_unlink_bss' filepath='net/wireless/scan.c' line='2507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_unlink_bss'>
@@ -108720,14 +108722,14 @@
         <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/core.c' line='1141' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17779' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
-        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17779' column='1'/>
-        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17780' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17781' column='1'/>
+      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
+        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17791' column='1'/>
+        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17792' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17793' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='13816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
-        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='13816' column='1'/>
+      <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='13828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='13828' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='class_destroy' mangled-name='class_destroy' filepath='drivers/base/class.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_destroy'>
@@ -114680,9 +114682,9 @@
         <parameter type-id='80f4b756' name='requested_name' filepath='net/mac80211/main.c' line='529' column='1'/>
         <return type-id='1905517d'/>
       </function-decl>
-      <function-decl name='ieee80211_ap_probereq_get' mangled-name='ieee80211_ap_probereq_get' filepath='net/mac80211/mlme.c' line='2682' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_ap_probereq_get'>
-        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/mlme.c' line='2682' column='1'/>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2683' column='1'/>
+      <function-decl name='ieee80211_ap_probereq_get' mangled-name='ieee80211_ap_probereq_get' filepath='net/mac80211/mlme.c' line='2683' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_ap_probereq_get'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/mlme.c' line='2683' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2684' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
       <function-decl name='ieee80211_beacon_cntdwn_is_complete' mangled-name='ieee80211_beacon_cntdwn_is_complete' filepath='net/mac80211/tx.c' line='4702' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_cntdwn_is_complete'>
@@ -114702,8 +114704,8 @@
         <parameter type-id='26d4d46f' name='tim_length' filepath='net/mac80211/tx.c' line='4985' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='ieee80211_beacon_loss' mangled-name='ieee80211_beacon_loss' filepath='net/mac80211/mlme.c' line='2809' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_loss'>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2809' column='1'/>
+      <function-decl name='ieee80211_beacon_loss' mangled-name='ieee80211_beacon_loss' filepath='net/mac80211/mlme.c' line='2810' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_loss'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2810' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ieee80211_beacon_update_cntdwn' mangled-name='ieee80211_beacon_update_cntdwn' filepath='net/mac80211/tx.c' line='4651' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_beacon_update_cntdwn'>
@@ -114720,25 +114722,25 @@
         <parameter type-id='3eaa0294' name='band' filepath='net/wireless/util.c' line='75' column='1'/>
         <return type-id='19c2251e'/>
       </function-decl>
-      <function-decl name='ieee80211_chswitch_done' mangled-name='ieee80211_chswitch_done' filepath='net/mac80211/mlme.c' line='1307' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_chswitch_done'>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='1307' column='1'/>
-        <parameter type-id='b50a4934' name='success' filepath='net/mac80211/mlme.c' line='1307' column='1'/>
+      <function-decl name='ieee80211_chswitch_done' mangled-name='ieee80211_chswitch_done' filepath='net/mac80211/mlme.c' line='1308' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_chswitch_done'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='1308' column='1'/>
+        <parameter type-id='b50a4934' name='success' filepath='net/mac80211/mlme.c' line='1308' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_connection_loss' mangled-name='ieee80211_connection_loss' filepath='net/mac80211/mlme.c' line='2821' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_connection_loss'>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2821' column='1'/>
+      <function-decl name='ieee80211_connection_loss' mangled-name='ieee80211_connection_loss' filepath='net/mac80211/mlme.c' line='2822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_connection_loss'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='2822' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_cqm_beacon_loss_notify' mangled-name='ieee80211_cqm_beacon_loss_notify' filepath='net/mac80211/mlme.c' line='5942' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_cqm_beacon_loss_notify'>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='5942' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/mlme.c' line='5942' column='1'/>
+      <function-decl name='ieee80211_cqm_beacon_loss_notify' mangled-name='ieee80211_cqm_beacon_loss_notify' filepath='net/mac80211/mlme.c' line='5950' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_cqm_beacon_loss_notify'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='5950' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/mlme.c' line='5950' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_cqm_rssi_notify' mangled-name='ieee80211_cqm_rssi_notify' filepath='net/mac80211/mlme.c' line='5929' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_cqm_rssi_notify'>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='5929' column='1'/>
-        <parameter type-id='b8189423' name='rssi_event' filepath='net/mac80211/mlme.c' line='5930' column='1'/>
-        <parameter type-id='a7832498' name='rssi_level' filepath='net/mac80211/mlme.c' line='5931' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/mlme.c' line='5932' column='1'/>
+      <function-decl name='ieee80211_cqm_rssi_notify' mangled-name='ieee80211_cqm_rssi_notify' filepath='net/mac80211/mlme.c' line='5937' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_cqm_rssi_notify'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/mlme.c' line='5937' column='1'/>
+        <parameter type-id='b8189423' name='rssi_event' filepath='net/mac80211/mlme.c' line='5938' column='1'/>
+        <parameter type-id='a7832498' name='rssi_level' filepath='net/mac80211/mlme.c' line='5939' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/mac80211/mlme.c' line='5940' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ieee80211_csa_finish' mangled-name='ieee80211_csa_finish' filepath='net/mac80211/cfg.c' line='3131' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_csa_finish'>
@@ -114963,6 +114965,14 @@
         <parameter type-id='cde83d0f' name='txq' filepath='net/mac80211/tx.c' line='3617' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
+      <function-decl name='ieee80211_tx_prepare_skb' mangled-name='ieee80211_tx_prepare_skb' filepath='net/mac80211/tx.c' line='1856' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_prepare_skb'>
+        <parameter type-id='1905517d' name='hw' filepath='net/mac80211/tx.c' line='1856' column='1'/>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/tx.c' line='1857' column='1'/>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/mac80211/tx.c' line='1857' column='1'/>
+        <parameter type-id='95e97e5e' name='band' filepath='net/mac80211/tx.c' line='1858' column='1'/>
+        <parameter type-id='52b8956e' name='sta' filepath='net/mac80211/tx.c' line='1858' column='1'/>
+        <return type-id='b50a4934'/>
+      </function-decl>
       <function-decl name='ieee80211_tx_rate_update' mangled-name='ieee80211_tx_rate_update' filepath='net/mac80211/status.c' line='1192' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tx_rate_update'>
         <parameter type-id='1905517d' name='hw' filepath='net/mac80211/status.c' line='1192' column='1'/>
         <parameter type-id='f27bb1b0' name='pubsta' filepath='net/mac80211/status.c' line='1193' column='1'/>
@@ -115182,12 +115192,12 @@
         <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2153' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='input_register_handle' mangled-name='input_register_handle' filepath='drivers/input/input.c' line='2378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handle'>
-        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='2378' column='1'/>
+      <function-decl name='input_register_handle' mangled-name='input_register_handle' filepath='drivers/input/input.c' line='2384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handle'>
+        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='2384' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='input_register_handler' mangled-name='input_register_handler' filepath='drivers/input/input.c' line='2287' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handler'>
-        <parameter type-id='4938abae' name='handler' filepath='drivers/input/input.c' line='2287' column='1'/>
+      <function-decl name='input_register_handler' mangled-name='input_register_handler' filepath='drivers/input/input.c' line='2293' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_register_handler'>
+        <parameter type-id='4938abae' name='handler' filepath='drivers/input/input.c' line='2293' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='input_set_abs_params' mangled-name='input_set_abs_params' filepath='drivers/input/input.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_set_abs_params'>
@@ -115210,16 +115220,16 @@
         <parameter type-id='fbc017ef' name='timestamp' filepath='drivers/input/input.c' line='1942' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='input_unregister_device' mangled-name='input_unregister_device' filepath='drivers/input/input.c' line='2260' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_device'>
-        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2260' column='1'/>
+      <function-decl name='input_unregister_device' mangled-name='input_unregister_device' filepath='drivers/input/input.c' line='2266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_device'>
+        <parameter type-id='74b427eb' name='dev' filepath='drivers/input/input.c' line='2266' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='input_unregister_handle' mangled-name='input_unregister_handle' filepath='drivers/input/input.c' line='2428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handle'>
-        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='2428' column='1'/>
+      <function-decl name='input_unregister_handle' mangled-name='input_unregister_handle' filepath='drivers/input/input.c' line='2434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handle'>
+        <parameter type-id='bef1b918' name='handle' filepath='drivers/input/input.c' line='2434' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='input_unregister_handler' mangled-name='input_unregister_handler' filepath='drivers/input/input.c' line='2317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handler'>
-        <parameter type-id='4938abae' name='handler' filepath='drivers/input/input.c' line='2317' column='1'/>
+      <function-decl name='input_unregister_handler' mangled-name='input_unregister_handler' filepath='drivers/input/input.c' line='2323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='input_unregister_handler'>
+        <parameter type-id='4938abae' name='handler' filepath='drivers/input/input.c' line='2323' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='int_sqrt' mangled-name='int_sqrt' filepath='lib/math/int_sqrt.c' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='int_sqrt'>
@@ -116172,8 +116182,8 @@
         <parameter type-id='2aee9912' name='ap' filepath='lib/kasprintf.c' line='15' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='kvfree' mangled-name='kvfree' filepath='mm/util.c' line='608' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree'>
-        <parameter type-id='eaa32e2f' name='addr' filepath='mm/util.c' line='608' column='1'/>
+      <function-decl name='kvfree' mangled-name='kvfree' filepath='mm/util.c' line='610' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/util.c' line='610' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kvfree_call_rcu' mangled-name='kvfree_call_rcu' filepath='kernel/rcu/tree.c' line='3466' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kvfree_call_rcu'>
@@ -117042,8 +117052,8 @@
         <parameter type-id='42c8f564' name='sb' filepath='fs/inode.c' line='953' column='1'/>
         <return type-id='7e666abe'/>
       </function-decl>
-      <function-decl name='nf_conntrack_destroy' mangled-name='nf_conntrack_destroy' filepath='net/netfilter/core.c' line='670' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nf_conntrack_destroy'>
-        <parameter type-id='96b07343' name='nfct' filepath='net/netfilter/core.c' line='670' column='1'/>
+      <function-decl name='nf_conntrack_destroy' mangled-name='nf_conntrack_destroy' filepath='net/netfilter/core.c' line='671' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nf_conntrack_destroy'>
+        <parameter type-id='96b07343' name='nfct' filepath='net/netfilter/core.c' line='671' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='nla_append' mangled-name='nla_append' filepath='lib/nlattr.c' line='1101' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='nla_append'>
@@ -117777,8 +117787,8 @@
         <parameter type-id='eaa32e2f' name='addr' filepath='mm/page_alloc.c' line='5341' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='page_mapping' mangled-name='page_mapping' filepath='mm/util.c' line='686' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_mapping'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/util.c' line='686' column='1'/>
+      <function-decl name='page_mapping' mangled-name='page_mapping' filepath='mm/util.c' line='688' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_mapping'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/util.c' line='688' column='1'/>
         <return type-id='f57039f0'/>
       </function-decl>
       <function-decl name='panic' mangled-name='panic' filepath='kernel/panic.c' line='177' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='panic'>
diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index a9dd78485076f..932cb8b3520d7 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -634,6 +634,7 @@
   ieee80211_scan_completed
   ieee80211_stop_queues
   ieee80211_stop_tx_ba_cb_irqsafe
+  ieee80211_tx_prepare_skb
   ieee80211_tx_status_irqsafe
   ieee80211_unregister_hw
   ieee80211_wake_queues
-- 
GitLab


From 8b3726b320a94c58dc13af7f82ca5585e31e4506 Mon Sep 17 00:00:00 2001
From: Charan Teja Reddy <quic_charante@quicinc.com>
Date: Mon, 17 Jan 2022 12:58:20 +0530
Subject: [PATCH 4454/4878] ANDROID: iommu: Use restricted vendor hook for dma
 ops

Use rvh instead of vh for the iommu_setup_dma_ops to prevent
sleeping while atomic bugs as mutexes are used to serialize
access to iova regions, as well GFP_KERNEL allocations are used.

Bug: 214353193
Change-Id: I45f8f0404a247b67fd07a6831ff813bbc50fbca2
Signed-off-by: Charan Teja Reddy <quic_charante@quicinc.com>
---
 arch/arm64/mm/dma-mapping.c    | 2 +-
 drivers/android/vendor_hooks.c | 2 +-
 include/trace/hooks/iommu.h    | 7 +++----
 3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index c834a6445842f..deb45e8edf7ce 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -52,7 +52,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 	dev->dma_coherent = coherent;
 	if (iommu) {
 		iommu_setup_dma_ops(dev, dma_base, size);
-		trace_android_vh_iommu_setup_dma_ops(dev, dma_base, size);
+		trace_android_rvh_iommu_setup_dma_ops(dev, dma_base, size);
 	}
 
 #ifdef CONFIG_XEN
diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 09f371d07a582..a72414c52a5a1 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -204,7 +204,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_die_kernel_fault);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_sea);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_mem_abort);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_sp_pc_abort);
-EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_iommu_setup_dma_ops);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_iommu_setup_dma_ops);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_iommu_alloc_iova);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_iommu_free_iova);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_pick_next_entity);
diff --git a/include/trace/hooks/iommu.h b/include/trace/hooks/iommu.h
index d4fbeec3844bf..c9a52193c4e94 100644
--- a/include/trace/hooks/iommu.h
+++ b/include/trace/hooks/iommu.h
@@ -13,10 +13,9 @@
 #include <trace/hooks/vendor_hooks.h>
 
 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
-
-DECLARE_HOOK(android_vh_iommu_setup_dma_ops,
+DECLARE_RESTRICTED_HOOK(android_rvh_iommu_setup_dma_ops,
 	TP_PROTO(struct device *dev, u64 dma_base, u64 size),
-	TP_ARGS(dev, dma_base, size));
+	TP_ARGS(dev, dma_base, size), 1);
 
 DECLARE_HOOK(android_vh_iommu_alloc_iova,
 	TP_PROTO(struct device *dev, dma_addr_t iova, size_t size),
@@ -27,7 +26,7 @@ DECLARE_HOOK(android_vh_iommu_free_iova,
 	TP_ARGS(iova, size));
 #else
 
-#define trace_android_vh_iommu_setup_dma_ops(dev, dma_base, size)
+#define trace_android_rvh_iommu_setup_dma_ops(dev, dma_base, size)
 #define trace_android_vh_iommu_alloc_iova(dev, iova, size)
 #define trace_android_vh_iommu_free_iova(iova, size)
 
-- 
GitLab


From 0578215e0d361c6e401d3bca46c72a443a5ab059 Mon Sep 17 00:00:00 2001
From: Vijayanand Jitta <quic_vjitta@quicinc.com>
Date: Fri, 4 Mar 2022 19:49:08 +0530
Subject: [PATCH 4455/4878] ANDROID: mm/slub: Fix Kasan issue with
 for_each_object_track

In for_each_object_track we go through meta data of the slab
object in function(fn), and as a result false postive out-of-bound
access is reported by kasan. Fix this by wrapping that function call
with metadata_access_enable/disable.

Bug: 222651868
Fixes: ee8d2c7884a00 ("ANDROID: mm: add get_each_object_track function")
Change-Id: Ifb4241a9c3e397a52759d467aa267d1297e297dd
Signed-off-by: Vijayanand Jitta <quic_vjitta@quicinc.com>
(cherry picked from commit cd6e5d5d7d0338fbfe58010f7dde0a521db6b681)
---
 mm/slub.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/slub.c b/mm/slub.c
index d59262454f879..3db21d3ed9a28 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -593,7 +593,9 @@ unsigned long get_each_object_track(struct kmem_cache *s,
 	slab_lock(page);
 	for_each_object(p, s, page_address(page), page->objects) {
 		t = get_track(s, p, alloc);
+		metadata_access_enable();
 		ret = fn(s, p, t, private);
+		metadata_access_disable();
 		if (ret < 0)
 			break;
 		num_track += 1;
-- 
GitLab


From f9985441a763270a2af871655d971e982bcaf723 Mon Sep 17 00:00:00 2001
From: Evgenii Stepanov <eugenis@google.com>
Date: Wed, 9 Mar 2022 13:04:42 -0800
Subject: [PATCH 4456/4878] Revert "FROMLIST: arm64/mte: Document ABI for
 asymmetric mode"

This FROMLIST change has been updated. Reverting to be replaced with the
final version FROMGIT.

This reverts commit 926ce981052df354958d91fdf503b35648a19366.

Bug: 217221156
Change-Id: I4e5c19675fc88987da9804a39a050ef050e2453a
Signed-off-by: Evgenii Stepanov <eugenis@google.com>
---
 Documentation/arm64/memory-tagging-extension.rst | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/Documentation/arm64/memory-tagging-extension.rst b/Documentation/arm64/memory-tagging-extension.rst
index 5218b838d0629..7b99c8f428eb6 100644
--- a/Documentation/arm64/memory-tagging-extension.rst
+++ b/Documentation/arm64/memory-tagging-extension.rst
@@ -76,9 +76,6 @@ configurable behaviours:
   with ``.si_code = SEGV_MTEAERR`` and ``.si_addr = 0`` (the faulting
   address is unknown).
 
-- *Asymmetric* - Reads are handled as for synchronous mode while writes
-  are handled as for asynchronous mode.
-
 The user can select the above modes, per thread, using the
 ``prctl(PR_SET_TAGGED_ADDR_CTRL, flags, 0, 0, 0)`` system call where ``flags``
 contains any number of the following values in the ``PR_MTE_TCF_MASK``
@@ -88,7 +85,6 @@ bit-field:
                          (ignored if combined with other options)
 - ``PR_MTE_TCF_SYNC``  - *Synchronous* tag check fault mode
 - ``PR_MTE_TCF_ASYNC`` - *Asynchronous* tag check fault mode
-- ``PR_MTE_TCF_ASYMM`` - *Asymmetric* tag check fault mode
 
 If no modes are specified, tag check faults are ignored. If a single
 mode is specified, the program will run in that mode. If multiple
@@ -143,14 +139,16 @@ tag checking mode as the CPU's preferred tag checking mode.
 
 The preferred tag checking mode for each CPU is controlled by
 ``/sys/devices/system/cpu/cpu<N>/mte_tcf_preferred``, to which a
-privileged user may write the value ``async``, ``sync`` or ``asymm``.  The
-default preferred mode for each CPU is ``async``.
+privileged user may write the value ``async`` or ``sync``.  The default
+preferred mode for each CPU is ``async``.
 
 To allow a program to potentially run in the CPU's preferred tag
 checking mode, the user program may set multiple tag check fault mode
 bits in the ``flags`` argument to the ``prctl(PR_SET_TAGGED_ADDR_CTRL,
 flags, 0, 0, 0)`` system call. If the CPU's preferred tag checking
-mode is in the task's set of provided tag checking modes, that
+mode is in the task's set of provided tag checking modes (this will
+always be the case at present because the kernel only supports two
+tag checking modes, but future kernels may support more modes), that
 mode will be selected. Otherwise, one of the modes in the task's mode
 set will be selected in a currently unspecified manner.
 
-- 
GitLab


From 91d57203fdf3f701591ec95de4c2c4509200ec1c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Wed, 16 Feb 2022 17:32:21 +0000
Subject: [PATCH 4457/4878] FROMGIT: arm64/mte: Document ABI for asymmetric
 mode

MTE3 adds a new mode which is synchronous for reads but asynchronous for
writes. Document the userspace ABI for this feature, we call the new
mode ASYMM and add a new prctl flag and mte_tcf_preferred value for it.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220216173224.2342152-2-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit 3f9ab2a6986fe2930782408cc2a6c25e3e5cb98f
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux for-next/mte)
Bug: 217221156
Change-Id: Ib42652bf2d4924b201274454b98299574c8a5fad
Signed-off-by: Evgenii Stepanov <eugenis@google.com>
---
 .../arm64/memory-tagging-extension.rst        | 21 +++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/Documentation/arm64/memory-tagging-extension.rst b/Documentation/arm64/memory-tagging-extension.rst
index 7b99c8f428eb6..42677d48a114b 100644
--- a/Documentation/arm64/memory-tagging-extension.rst
+++ b/Documentation/arm64/memory-tagging-extension.rst
@@ -76,6 +76,9 @@ configurable behaviours:
   with ``.si_code = SEGV_MTEAERR`` and ``.si_addr = 0`` (the faulting
   address is unknown).
 
+- *Asymmetric* - Reads are handled as for synchronous mode while writes
+  are handled as for asynchronous mode.
+
 The user can select the above modes, per thread, using the
 ``prctl(PR_SET_TAGGED_ADDR_CTRL, flags, 0, 0, 0)`` system call where ``flags``
 contains any number of the following values in the ``PR_MTE_TCF_MASK``
@@ -85,6 +88,7 @@ bit-field:
                          (ignored if combined with other options)
 - ``PR_MTE_TCF_SYNC``  - *Synchronous* tag check fault mode
 - ``PR_MTE_TCF_ASYNC`` - *Asynchronous* tag check fault mode
+- ``PR_MTE_TCF_ASYMM`` - *Asymmetric* tag check fault mode
 
 If no modes are specified, tag check faults are ignored. If a single
 mode is specified, the program will run in that mode. If multiple
@@ -139,18 +143,23 @@ tag checking mode as the CPU's preferred tag checking mode.
 
 The preferred tag checking mode for each CPU is controlled by
 ``/sys/devices/system/cpu/cpu<N>/mte_tcf_preferred``, to which a
-privileged user may write the value ``async`` or ``sync``.  The default
-preferred mode for each CPU is ``async``.
+privileged user may write the value ``async``, ``sync`` or ``asymm``.  The
+default preferred mode for each CPU is ``async``.
 
 To allow a program to potentially run in the CPU's preferred tag
 checking mode, the user program may set multiple tag check fault mode
 bits in the ``flags`` argument to the ``prctl(PR_SET_TAGGED_ADDR_CTRL,
 flags, 0, 0, 0)`` system call. If the CPU's preferred tag checking
-mode is in the task's set of provided tag checking modes (this will
-always be the case at present because the kernel only supports two
-tag checking modes, but future kernels may support more modes), that
+mode is in the task's set of provided tag checking modes, that
 mode will be selected. Otherwise, one of the modes in the task's mode
-set will be selected in a currently unspecified manner.
+selected by the kernel using the preference order:
+
+	1. Asynchronous
+	2. Asymmetric
+	3. Synchronous
+
+If asymmetric mode is specified by the program but not supported by
+either the system or the kernel then an error will be returned.
 
 Initial process state
 ---------------------
-- 
GitLab


From 54ad79ee8126c55efb7b60c1bbecd0044902bb28 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel.org>
Date: Wed, 9 Mar 2022 13:12:00 +0000
Subject: [PATCH 4458/4878] FROMGIT: arm64/mte: Remove asymmetric mode from the
 prctl() interface

As pointed out by Evgenii Stepanov one potential issue with the new ABI for
enabling asymmetric is that if there are multiple places where MTE is
configured in a process, some of which were compiled with the old prctl.h
and some of which were compiled with the new prctl.h, there may be problems
keeping track of which MTE modes are requested. For example some code may
disable only sync and async modes leaving asymmetric mode enabled when it
intended to fully disable MTE.

In order to avoid such mishaps remove asymmetric mode from the prctl(),
instead implicitly allowing it if both sync and async modes are requested.
This should not disrupt userspace since a process requesting both may
already see a mix of sync and async modes due to differing defaults between
CPUs or changes in default while the process is running but it does mean
that userspace is unable to explicitly request asymmetric mode without
changing the system default for CPUs.

Reported-by: Evgenii Stepanov <eugenis@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Evgenii Stepanov <eugenis@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: Branislav Rankov <branislav.rankov@arm.com>
Link: https://lore.kernel.org/r/20220309131200.112637-1-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
(cherry picked from commit cf220ad6749b8305ba11bdf601c55a17ad2a715d
 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux for-next/mte)
Bug: 217221156
Change-Id: I04eb365809b96a73f438f19069265ca901516bb5
Signed-off-by: Evgenii Stepanov <eugenis@google.com>
---
 Documentation/arm64/memory-tagging-extension.rst | 15 ++++++++-------
 arch/arm64/kernel/mte.c                          | 13 ++++++++++---
 arch/arm64/kernel/process.c                      |  2 --
 include/uapi/linux/prctl.h                       |  4 +---
 4 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/Documentation/arm64/memory-tagging-extension.rst b/Documentation/arm64/memory-tagging-extension.rst
index 42677d48a114b..7e812a51e5065 100644
--- a/Documentation/arm64/memory-tagging-extension.rst
+++ b/Documentation/arm64/memory-tagging-extension.rst
@@ -88,7 +88,6 @@ bit-field:
                          (ignored if combined with other options)
 - ``PR_MTE_TCF_SYNC``  - *Synchronous* tag check fault mode
 - ``PR_MTE_TCF_ASYNC`` - *Asynchronous* tag check fault mode
-- ``PR_MTE_TCF_ASYMM`` - *Asymmetric* tag check fault mode
 
 If no modes are specified, tag check faults are ignored. If a single
 mode is specified, the program will run in that mode. If multiple
@@ -149,17 +148,19 @@ default preferred mode for each CPU is ``async``.
 To allow a program to potentially run in the CPU's preferred tag
 checking mode, the user program may set multiple tag check fault mode
 bits in the ``flags`` argument to the ``prctl(PR_SET_TAGGED_ADDR_CTRL,
-flags, 0, 0, 0)`` system call. If the CPU's preferred tag checking
-mode is in the task's set of provided tag checking modes, that
-mode will be selected. Otherwise, one of the modes in the task's mode
-selected by the kernel using the preference order:
+flags, 0, 0, 0)`` system call. If both synchronous and asynchronous
+modes are requested then asymmetric mode may also be selected by the
+kernel. If the CPU's preferred tag checking mode is in the task's set
+of provided tag checking modes, that mode will be selected. Otherwise,
+one of the modes in the task's mode will be selected by the kernel
+from the task's mode set using the preference order:
 
 	1. Asynchronous
 	2. Asymmetric
 	3. Synchronous
 
-If asymmetric mode is specified by the program but not supported by
-either the system or the kernel then an error will be returned.
+Note that there is no way for userspace to request multiple modes and
+also disable asymmetric mode.
 
 Initial process state
 ---------------------
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index fb777d8fea328..2b35b706a7baa 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -308,7 +308,16 @@ long set_mte_ctrl(struct task_struct *task, unsigned long arg)
 		mte_ctrl |= MTE_CTRL_TCF_ASYNC;
 	if (arg & PR_MTE_TCF_SYNC)
 		mte_ctrl |= MTE_CTRL_TCF_SYNC;
-	if (arg & PR_MTE_TCF_ASYMM)
+
+	/*
+	 * If the system supports it and both sync and async modes are
+	 * specified then implicitly enable asymmetric mode.
+	 * Userspace could see a mix of both sync and async anyway due
+	 * to differing or changing defaults on CPUs.
+	 */
+	if (cpus_have_cap(ARM64_MTE_ASYMM) &&
+	    (arg & PR_MTE_TCF_ASYNC) &&
+	    (arg & PR_MTE_TCF_SYNC))
 		mte_ctrl |= MTE_CTRL_TCF_ASYMM;
 
 	task->thread.mte_ctrl = mte_ctrl;
@@ -338,8 +347,6 @@ long get_mte_ctrl(struct task_struct *task)
 		ret |= PR_MTE_TCF_ASYNC;
 	if (mte_ctrl & MTE_CTRL_TCF_SYNC)
 		ret |= PR_MTE_TCF_SYNC;
-	if (mte_ctrl & MTE_CTRL_TCF_ASYMM)
-		ret |= PR_MTE_TCF_ASYMM;
 
 	return ret;
 }
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 49274aebcde52..00bff856d496c 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -682,8 +682,6 @@ long set_tagged_addr_ctrl(struct task_struct *task, unsigned long arg)
 	if (system_supports_mte())
 		valid_mask |= PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC \
 			| PR_MTE_TAG_MASK;
-	if (cpus_have_cap(ARM64_MTE_ASYMM))
-		valid_mask |= PR_MTE_TCF_ASYMM;
 
 	if (arg & ~valid_mask)
 		return -EINVAL;
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index e1ff393ec8599..2f70791ff8e57 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -237,9 +237,7 @@ struct prctl_mm_map {
 # define PR_MTE_TCF_NONE		0
 # define PR_MTE_TCF_SYNC		(1UL << 1)
 # define PR_MTE_TCF_ASYNC		(1UL << 2)
-# define PR_MTE_TCF_ASYMM		(1UL << 19)
-# define PR_MTE_TCF_MASK		(PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC | \
-					 PR_MTE_TCF_ASYMM)
+# define PR_MTE_TCF_MASK		(PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)
 /* MTE tag inclusion mask */
 # define PR_MTE_TAG_SHIFT		3
 # define PR_MTE_TAG_MASK		(0xffffUL << PR_MTE_TAG_SHIFT)
-- 
GitLab


From 19507e098be2c5f9b07ed086c94697c694473906 Mon Sep 17 00:00:00 2001
From: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Date: Tue, 5 Oct 2021 23:02:29 -0700
Subject: [PATCH 4459/4878] ANDROID: arm64/mm: Add command line option to make
 ZONE_DMA32 empty

ZONE_DMA32 is enabled by default on android12-5.10, yet it is not
needed for all devices, nor is it desirable to have if not needed. For
instance, if a partner in GKI 1.0 did not use ZONE_DMA32, memory can
be lower for ZONE_NORMAL relative to older targets, such that memory
would run out more quickly in ZONE_NORMAL leading kswapd to be invoked
unnecessarily.

Correspondingly, provide a means of making ZONE_DMA32 empty via the
kernel command line when it is compiled in via CONFIG_ZONE_DMA32.

Bug: 199917449
Change-Id: I70ec76914b92e518d61a61072f0b3cb41cb28646
Signed-off-by: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
(cherry picked from commit c3c2bb34ac8f3cf3ec040110380ae0a5fd2ffcd0)
---
 arch/arm64/mm/init.c       | 20 +++++++++++++++++++-
 arch/x86/mm/init.c         | 20 +++++++++++++++++++-
 include/linux/dma-direct.h | 22 ++++++++++++++++++++++
 kernel/dma/direct.c        |  6 ++++--
 kernel/dma/pool.c          |  8 ++++----
 5 files changed, 68 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 71a12660f7472..33d93f800734a 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -62,6 +62,12 @@ EXPORT_SYMBOL(memstart_addr);
  */
 phys_addr_t arm64_dma_phys_limit __ro_after_init;
 
+/*
+ * Provide a run-time mean of disabling ZONE_DMA32 if it is enabled via
+ * CONFIG_ZONE_DMA32.
+ */
+static bool disable_dma32 __ro_after_init;
+
 #ifdef CONFIG_KEXEC_CORE
 /*
  * reserve_crashkernel() - reserves memory for crash kernel
@@ -207,7 +213,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 	max_zone_pfns[ZONE_DMA] = PFN_DOWN(arm64_dma_phys_limit);
 #endif
 #ifdef CONFIG_ZONE_DMA32
-	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(dma32_phys_limit);
+	max_zone_pfns[ZONE_DMA32] = disable_dma32 ? 0 : PFN_DOWN(dma32_phys_limit);
 	if (!arm64_dma_phys_limit)
 		arm64_dma_phys_limit = dma32_phys_limit;
 #endif
@@ -218,6 +224,18 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 	free_area_init(max_zone_pfns);
 }
 
+static int __init early_disable_dma32(char *buf)
+{
+	if (!buf)
+		return -EINVAL;
+
+	if (!strcmp(buf, "on"))
+		disable_dma32 = true;
+
+	return 0;
+}
+early_param("disable_dma32", early_disable_dma32);
+
 int pfn_valid(unsigned long pfn)
 {
 	phys_addr_t addr = pfn << PAGE_SHIFT;
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index c7a47603537f2..155c95dc17725 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -102,6 +102,12 @@ static unsigned long min_pfn_mapped;
 
 static bool __initdata can_use_brk_pgt = true;
 
+/*
+ * Provide a run-time mean of disabling ZONE_DMA32 if it is enabled via
+ * CONFIG_ZONE_DMA32.
+ */
+static bool disable_dma32 __ro_after_init;
+
 /*
  * Pages returned are already directly mapped.
  *
@@ -996,7 +1002,7 @@ void __init zone_sizes_init(void)
 	max_zone_pfns[ZONE_DMA]		= min(MAX_DMA_PFN, max_low_pfn);
 #endif
 #ifdef CONFIG_ZONE_DMA32
-	max_zone_pfns[ZONE_DMA32]	= min(MAX_DMA32_PFN, max_low_pfn);
+	max_zone_pfns[ZONE_DMA32]	= disable_dma32 ? 0 : min(MAX_DMA32_PFN, max_low_pfn);
 #endif
 	max_zone_pfns[ZONE_NORMAL]	= max_low_pfn;
 #ifdef CONFIG_HIGHMEM
@@ -1006,6 +1012,18 @@ void __init zone_sizes_init(void)
 	free_area_init(max_zone_pfns);
 }
 
+static int __init early_disable_dma32(char *buf)
+{
+	if (!buf)
+		return -EINVAL;
+
+	if (!strcmp(buf, "on"))
+		disable_dma32 = true;
+
+	return 0;
+}
+early_param("disable_dma32", early_disable_dma32);
+
 __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = {
 	.loaded_mm = &init_mm,
 	.next_asid = 1,
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 18aade195884d..ed69618cf1fc2 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -24,6 +24,28 @@ struct bus_dma_region {
 	u64		offset;
 };
 
+static inline bool zone_dma32_is_empty(int node)
+{
+#ifdef CONFIG_ZONE_DMA32
+	pg_data_t *pgdat = NODE_DATA(node);
+
+	return zone_is_empty(&pgdat->node_zones[ZONE_DMA32]);
+#else
+	return true;
+#endif
+}
+
+static inline bool zone_dma32_are_empty(void)
+{
+	int node;
+
+	for_each_node(node)
+		if (!zone_dma32_is_empty(node))
+			return false;
+
+	return true;
+}
+
 static inline dma_addr_t translate_phys_to_dma(struct device *dev,
 		phys_addr_t paddr)
 {
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index d2695123296a3..3348620a65284 100644
--- a/kernel/dma/direct.c
+++ b/kernel/dma/direct.c
@@ -61,7 +61,8 @@ static gfp_t dma_direct_optimal_gfp_mask(struct device *dev, u64 dma_mask,
 	*phys_limit = dma_to_phys(dev, dma_limit);
 	if (*phys_limit <= DMA_BIT_MASK(zone_dma_bits))
 		return GFP_DMA;
-	if (*phys_limit <= DMA_BIT_MASK(32))
+	if (*phys_limit <= DMA_BIT_MASK(32) &&
+		!zone_dma32_is_empty(dev_to_node(dev)))
 		return GFP_DMA32;
 	return 0;
 }
@@ -120,7 +121,8 @@ again:
 
 		if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
 		    phys_limit < DMA_BIT_MASK(64) &&
-		    !(gfp & (GFP_DMA32 | GFP_DMA))) {
+		    !(gfp & (GFP_DMA32 | GFP_DMA)) &&
+		    !zone_dma32_is_empty(node)) {
 			gfp |= GFP_DMA32;
 			goto again;
 		}
diff --git a/kernel/dma/pool.c b/kernel/dma/pool.c
index b9082b572e0f8..92aa832b24d2c 100644
--- a/kernel/dma/pool.c
+++ b/kernel/dma/pool.c
@@ -74,7 +74,7 @@ static bool cma_in_zone(gfp_t gfp)
 	end = cma_get_base(cma) + size - 1;
 	if (IS_ENABLED(CONFIG_ZONE_DMA) && (gfp & GFP_DMA))
 		return end <= DMA_BIT_MASK(zone_dma_bits);
-	if (IS_ENABLED(CONFIG_ZONE_DMA32) && (gfp & GFP_DMA32))
+	if (IS_ENABLED(CONFIG_ZONE_DMA32) && (gfp & GFP_DMA32) && !zone_dma32_are_empty())
 		return end <= DMA_BIT_MASK(32);
 	return true;
 }
@@ -156,7 +156,7 @@ static void atomic_pool_work_fn(struct work_struct *work)
 	if (IS_ENABLED(CONFIG_ZONE_DMA))
 		atomic_pool_resize(atomic_pool_dma,
 				   GFP_KERNEL | GFP_DMA);
-	if (IS_ENABLED(CONFIG_ZONE_DMA32))
+	if (IS_ENABLED(CONFIG_ZONE_DMA32) && !zone_dma32_are_empty())
 		atomic_pool_resize(atomic_pool_dma32,
 				   GFP_KERNEL | GFP_DMA32);
 	atomic_pool_resize(atomic_pool_kernel, GFP_KERNEL);
@@ -212,7 +212,7 @@ static int __init dma_atomic_pool_init(void)
 		if (!atomic_pool_dma)
 			ret = -ENOMEM;
 	}
-	if (IS_ENABLED(CONFIG_ZONE_DMA32)) {
+	if (IS_ENABLED(CONFIG_ZONE_DMA32) && !zone_dma32_are_empty()) {
 		atomic_pool_dma32 = __dma_atomic_pool_init(atomic_pool_size,
 						GFP_KERNEL | GFP_DMA32);
 		if (!atomic_pool_dma32)
@@ -227,7 +227,7 @@ postcore_initcall(dma_atomic_pool_init);
 static inline struct gen_pool *dma_guess_pool(struct gen_pool *prev, gfp_t gfp)
 {
 	if (prev == NULL) {
-		if (IS_ENABLED(CONFIG_ZONE_DMA32) && (gfp & GFP_DMA32))
+		if (IS_ENABLED(CONFIG_ZONE_DMA32) && (gfp & GFP_DMA32) && !zone_dma32_are_empty())
 			return atomic_pool_dma32;
 		if (atomic_pool_dma && (gfp & GFP_DMA))
 			return atomic_pool_dma;
-- 
GitLab


From 239dde67636a2909b788186a1a999ed017101492 Mon Sep 17 00:00:00 2001
From: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Date: Thu, 24 Feb 2022 16:13:30 -0800
Subject: [PATCH 4460/4878] ANDROID: dma-direct: Make DMA32 disablement work
 for CONFIG_NUMA

zone_dma32_is_empty() currently lacks the proper validation to ensure
that the NUMA node ID it receives as an argument is valid. This has no
effect on kernels with CONFIG_NUMA=n as NODE_DATA() will return the
same pglist_data on these devices, but on kernels with CONFIG_NUMA=y,
this is not the case, and the node passed to NODE_DATA must be
validated.

Rather than trying to find the node containing ZONE_DMA32, replace
calls of zone_dma32_is_empty() with zone_dma32_are_empty() (which
iterates over all nodes and returns false if one of the nodes holds
DMA32 and it is non-empty).

Bug: 199917449
Fixes: c3c2bb34ac8f ("ANDROID: arm64/mm: Add command line option to make ZONE_DMA32 empty")
Signed-off-by: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Change-Id: I850fb9213b71a1ef29106728bfda0cc6de46fdbb
(cherry picked from commit bf96382fb9220359fdffc3fe485a5b535a094a2d)
---
 include/linux/dma-direct.h | 5 +++++
 kernel/dma/direct.c        | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index ed69618cf1fc2..80f0dbac77c45 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -37,11 +37,16 @@ static inline bool zone_dma32_is_empty(int node)
 
 static inline bool zone_dma32_are_empty(void)
 {
+#ifdef CONFIG_NUMA
 	int node;
 
 	for_each_node(node)
 		if (!zone_dma32_is_empty(node))
 			return false;
+#else
+	if (!zone_dma32_is_empty(numa_node_id()))
+		return false;
+#endif
 
 	return true;
 }
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index 3348620a65284..5a7014eaa1768 100644
--- a/kernel/dma/direct.c
+++ b/kernel/dma/direct.c
@@ -62,7 +62,7 @@ static gfp_t dma_direct_optimal_gfp_mask(struct device *dev, u64 dma_mask,
 	if (*phys_limit <= DMA_BIT_MASK(zone_dma_bits))
 		return GFP_DMA;
 	if (*phys_limit <= DMA_BIT_MASK(32) &&
-		!zone_dma32_is_empty(dev_to_node(dev)))
+		!zone_dma32_are_empty())
 		return GFP_DMA32;
 	return 0;
 }
@@ -122,7 +122,7 @@ again:
 		if (IS_ENABLED(CONFIG_ZONE_DMA32) &&
 		    phys_limit < DMA_BIT_MASK(64) &&
 		    !(gfp & (GFP_DMA32 | GFP_DMA)) &&
-		    !zone_dma32_is_empty(node)) {
+		    !zone_dma32_are_empty()) {
 			gfp |= GFP_DMA32;
 			goto again;
 		}
-- 
GitLab


From 1acd05fd846bd82c1394cdcc20b7786d0f309a2c Mon Sep 17 00:00:00 2001
From: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Date: Fri, 25 Feb 2022 18:59:08 -0800
Subject: [PATCH 4461/4878] ANDROID: dma-direct: Document disable_dma32

Document the functionality of disable_dma32 as introduced in commit
c3c2bb34ac8f ("ANDROID: arm64/mm: Add command line option to make
ZONE_DMA32 empty").

Bug: 199917449
Signed-off-by: Chris Goldsworthy <quic_cgoldswo@quicinc.com>
Change-Id: I32ab2969f59fcc49e9ac49e7e6b545f816d120f9
(cherry picked from commit 135406cecb00983c7e98c2e3638f6f59080081ea)
---
 Documentation/admin-guide/kernel-parameters.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 59c0fec296068..a13fcaf501aa8 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -936,6 +936,10 @@
 			can be useful when debugging issues that require an SLB
 			miss to occur.
 
+	disable_dma32=	[KNL]
+			Dynamically disable ZONE_DMA32 on kernels compiled with
+			CONFIG_ZONE_DMA32=y.
+
 	stress_slb	[PPC]
 			Limits the number of kernel SLB entries, and flushes
 			them frequently to increase the rate of SLB faults
-- 
GitLab


From 0d6882dd158e559b291a2d1b045a65bc2fa4fc58 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Sat, 19 Feb 2022 13:07:55 +0100
Subject: [PATCH 4462/4878] ARM: boot: dts: bcm2711: Fix HVS register range

[ Upstream commit 515415d316168c6521d74ea8280287e28d7303e6 ]

While the HVS has the same context memory size in the BCM2711 than in
the previous SoCs, the range allocated to the registers doubled and it
now takes 16k + 16k, compared to 8k + 16k before.

The KMS driver will use the whole context RAM though, eventually
resulting in a pointer dereference error when we access the higher half
of the context memory since it hasn't been mapped.

Fixes: 4564363351e2 ("ARM: dts: bcm2711: Enable the display pipeline")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm2711.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 55ec83bde5a61..e46a3f4ad350a 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -290,6 +290,7 @@
 
 		hvs: hvs@7e400000 {
 			compatible = "brcm,bcm2711-hvs";
+			reg = <0x7e400000 0x8000>;
 			interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
-- 
GitLab


From 2a18a38cbc3bc05b4aea1ef5eea14842972cbfa4 Mon Sep 17 00:00:00 2001
From: Taniya Das <tdas@codeaurora.org>
Date: Thu, 24 Feb 2022 00:26:05 +0530
Subject: [PATCH 4463/4878] clk: qcom: gdsc: Add support to update GDSC
 transition delay

[ Upstream commit 4e7c4d3652f96f41179aab3ff53025c7a550d689 ]

GDSCs have multiple transition delays which are used for the GDSC FSM
states. Older targets/designs required these values to be updated from
gdsc code to certain default values for the FSM state to work as
expected. But on the newer targets/designs the values updated from the
GDSC driver can hamper the FSM state to not work as expected.

On SC7180 we observe black screens because the gdsc is being
enabled/disabled very rapidly and the GDSC FSM state does not work as
expected. This is due to the fact that the GDSC reset value is being
updated from SW.

Thus add support to update the transition delay from the clock
controller gdscs as required.

Fixes: 45dd0e55317cc ("clk: qcom: Add support for GDSCs)
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lore.kernel.org/r/20220223185606.3941-1-tdas@codeaurora.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/qcom/gdsc.c | 26 +++++++++++++++++++++-----
 drivers/clk/qcom/gdsc.h |  8 +++++++-
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index 4ece326ea233e..cf23cfd7e4674 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2015, 2017-2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, 2017-2018, 2022, The Linux Foundation. All rights reserved.
  */
 
 #include <linux/bitops.h>
@@ -34,9 +34,14 @@
 #define CFG_GDSCR_OFFSET		0x4
 
 /* Wait 2^n CXO cycles between all states. Here, n=2 (4 cycles). */
-#define EN_REST_WAIT_VAL	(0x2 << 20)
-#define EN_FEW_WAIT_VAL		(0x8 << 16)
-#define CLK_DIS_WAIT_VAL	(0x2 << 12)
+#define EN_REST_WAIT_VAL	0x2
+#define EN_FEW_WAIT_VAL		0x8
+#define CLK_DIS_WAIT_VAL	0x2
+
+/* Transition delay shifts */
+#define EN_REST_WAIT_SHIFT	20
+#define EN_FEW_WAIT_SHIFT	16
+#define CLK_DIS_WAIT_SHIFT	12
 
 #define RETAIN_MEM		BIT(14)
 #define RETAIN_PERIPH		BIT(13)
@@ -341,7 +346,18 @@ static int gdsc_init(struct gdsc *sc)
 	 */
 	mask = HW_CONTROL_MASK | SW_OVERRIDE_MASK |
 	       EN_REST_WAIT_MASK | EN_FEW_WAIT_MASK | CLK_DIS_WAIT_MASK;
-	val = EN_REST_WAIT_VAL | EN_FEW_WAIT_VAL | CLK_DIS_WAIT_VAL;
+
+	if (!sc->en_rest_wait_val)
+		sc->en_rest_wait_val = EN_REST_WAIT_VAL;
+	if (!sc->en_few_wait_val)
+		sc->en_few_wait_val = EN_FEW_WAIT_VAL;
+	if (!sc->clk_dis_wait_val)
+		sc->clk_dis_wait_val = CLK_DIS_WAIT_VAL;
+
+	val = sc->en_rest_wait_val << EN_REST_WAIT_SHIFT |
+		sc->en_few_wait_val << EN_FEW_WAIT_SHIFT |
+		sc->clk_dis_wait_val << CLK_DIS_WAIT_SHIFT;
+
 	ret = regmap_update_bits(sc->regmap, sc->gdscr, mask, val);
 	if (ret)
 		return ret;
diff --git a/drivers/clk/qcom/gdsc.h b/drivers/clk/qcom/gdsc.h
index 5bb396b344d16..762f1b5e1ec51 100644
--- a/drivers/clk/qcom/gdsc.h
+++ b/drivers/clk/qcom/gdsc.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2015, 2017-2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2015, 2017-2018, 2022, The Linux Foundation. All rights reserved.
  */
 
 #ifndef __QCOM_GDSC_H__
@@ -22,6 +22,9 @@ struct reset_controller_dev;
  * @cxcs: offsets of branch registers to toggle mem/periph bits in
  * @cxc_count: number of @cxcs
  * @pwrsts: Possible powerdomain power states
+ * @en_rest_wait_val: transition delay value for receiving enr ack signal
+ * @en_few_wait_val: transition delay value for receiving enf ack signal
+ * @clk_dis_wait_val: transition delay value for halting clock
  * @resets: ids of resets associated with this gdsc
  * @reset_count: number of @resets
  * @rcdev: reset controller
@@ -35,6 +38,9 @@ struct gdsc {
 	unsigned int			clamp_io_ctrl;
 	unsigned int			*cxcs;
 	unsigned int			cxc_count;
+	unsigned int			en_rest_wait_val;
+	unsigned int			en_few_wait_val;
+	unsigned int			clk_dis_wait_val;
 	const u8			pwrsts;
 /* Powerdomain allowable state bitfields */
 #define PWRSTS_OFF		BIT(0)
-- 
GitLab


From 2c6a75ea32f99ba4b315d7b58f579493d7ac2a9a Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri, 25 Feb 2022 17:18:58 -0800
Subject: [PATCH 4464/4878] HID: vivaldi: fix sysfs attributes leak

[ Upstream commit cc71d37fd1f11e0495b1cf580909ebea37eaa886 ]

The driver creates the top row map sysfs attribute in input_configured()
method; unfortunately we do not have a callback that is executed when HID
interface is unbound, thus we are leaking these sysfs attributes, for
example when device is disconnected.

To fix it let's switch to managed version of adding sysfs attributes which
will ensure that they are destroyed when the driver is unbound.

Fixes: 14c9c014babe ("HID: add vivaldi HID driver")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-vivaldi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-vivaldi.c b/drivers/hid/hid-vivaldi.c
index 576518e704ee6..d57ec17670379 100644
--- a/drivers/hid/hid-vivaldi.c
+++ b/drivers/hid/hid-vivaldi.c
@@ -143,7 +143,7 @@ out:
 static int vivaldi_input_configured(struct hid_device *hdev,
 				    struct hid_input *hidinput)
 {
-	return sysfs_create_group(&hdev->dev.kobj, &input_attribute_group);
+	return devm_device_add_group(&hdev->dev, &input_attribute_group);
 }
 
 static const struct hid_device_id vivaldi_table[] = {
-- 
GitLab


From ea3a5e6df5127fcd1e31462e64a35e0e7c7ed9f9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Mon, 17 Jan 2022 19:20:06 +0100
Subject: [PATCH 4465/4878] arm64: dts: armada-3720-turris-mox: Add missing
 ethernet0 alias
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit a0e897d1b36793fe0ab899f2fe93dff25c82f418 ]

U-Boot uses ethernet* aliases for setting MAC addresses. Therefore define
also alias for ethernet0.

Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 2e437f20da39b..ad963b51dcbe1 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -18,6 +18,7 @@
 
 	aliases {
 		spi0 = &spi0;
+		ethernet0 = &eth0;
 		ethernet1 = &eth1;
 		mmc0 = &sdhci0;
 		mmc1 = &sdhci1;
-- 
GitLab


From 2de76d37d4a6dca9b96ea51da24d4290e6cfa1a5 Mon Sep 17 00:00:00 2001
From: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Date: Fri, 4 Mar 2022 03:25:18 +0000
Subject: [PATCH 4466/4878] tipc: fix kernel panic when enabling bearer

[ Upstream commit be4977b847f5d5cedb64d50eaaf2218c3a55a3a3 ]

When enabling a bearer on a node, a kernel panic is observed:

[    4.498085] RIP: 0010:tipc_mon_prep+0x4e/0x130 [tipc]
...
[    4.520030] Call Trace:
[    4.520689]  <IRQ>
[    4.521236]  tipc_link_build_proto_msg+0x375/0x750 [tipc]
[    4.522654]  tipc_link_build_state_msg+0x48/0xc0 [tipc]
[    4.524034]  __tipc_node_link_up+0xd7/0x290 [tipc]
[    4.525292]  tipc_rcv+0x5da/0x730 [tipc]
[    4.526346]  ? __netif_receive_skb_core+0xb7/0xfc0
[    4.527601]  tipc_l2_rcv_msg+0x5e/0x90 [tipc]
[    4.528737]  __netif_receive_skb_list_core+0x20b/0x260
[    4.530068]  netif_receive_skb_list_internal+0x1bf/0x2e0
[    4.531450]  ? dev_gro_receive+0x4c2/0x680
[    4.532512]  napi_complete_done+0x6f/0x180
[    4.533570]  virtnet_poll+0x29c/0x42e [virtio_net]
...

The node in question is receiving activate messages in another
thread after changing bearer status to allow message sending/
receiving in current thread:

         thread 1           |              thread 2
         --------           |              --------
                            |
tipc_enable_bearer()        |
  test_and_set_bit_lock()   |
    tipc_bearer_xmit_skb()  |
                            | tipc_l2_rcv_msg()
                            |   tipc_rcv()
                            |     __tipc_node_link_up()
                            |       tipc_link_build_state_msg()
                            |         tipc_link_build_proto_msg()
                            |           tipc_mon_prep()
                            |           {
                            |             ...
                            |             // null-pointer dereference
                            |             u16 gen = mon->dom_gen;
                            |             ...
                            |           }
  // Not being executed yet |
  tipc_mon_create()         |
  {                         |
    ...                     |
    // allocate             |
    mon = kzalloc();        |
    ...                     |
  }                         |

Monitoring pointer in thread 2 is dereferenced before monitoring data
is allocated in thread 1. This causes kernel panic.

This commit fixes it by allocating the monitoring data before enabling
the bearer to receive messages.

Fixes: 35c55c9877f8 ("tipc: add neighbor monitoring framework")
Reported-by: Shuang Li <shuali@redhat.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/bearer.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 12e535b43d887..6911f1cab2063 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -342,16 +342,18 @@ static int tipc_enable_bearer(struct net *net, const char *name,
 		goto rejected;
 	}
 
-	test_and_set_bit_lock(0, &b->up);
-	rcu_assign_pointer(tn->bearer_list[bearer_id], b);
-	if (skb)
-		tipc_bearer_xmit_skb(net, bearer_id, skb, &b->bcast_addr);
-
+	/* Create monitoring data before accepting activate messages */
 	if (tipc_mon_create(net, bearer_id)) {
 		bearer_disable(net, b);
+		kfree_skb(skb);
 		return -ENOMEM;
 	}
 
+	test_and_set_bit_lock(0, &b->up);
+	rcu_assign_pointer(tn->bearer_list[bearer_id], b);
+	if (skb)
+		tipc_bearer_xmit_skb(net, bearer_id, skb, &b->bcast_addr);
+
 	pr_info("Enabled bearer <%s>, priority %u\n", name, prio);
 
 	return res;
-- 
GitLab


From f97ad179d12ff6789118cf3de3e0236075c5f48b Mon Sep 17 00:00:00 2001
From: Zhen Lei <thunder.leizhen@huawei.com>
Date: Thu, 20 May 2021 10:14:11 +0800
Subject: [PATCH 4467/4878] mISDN: Remove obsolete PIPELINE_DEBUG debugging
 information

[ Upstream commit 2682ea324b000709dafec7e9210caa5189377c45 ]

As Leon Romanovsky's tips:
The definition of macro PIPELINE_DEBUG is commented more than 10 years ago
and can be seen as a dead code that should be removed.

Suggested-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/isdn/mISDN/dsp_pipeline.c | 46 ++-----------------------------
 1 file changed, 2 insertions(+), 44 deletions(-)

diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index 40588692cec74..e11ca6bbc7f41 100644
--- a/drivers/isdn/mISDN/dsp_pipeline.c
+++ b/drivers/isdn/mISDN/dsp_pipeline.c
@@ -17,9 +17,6 @@
 #include "dsp.h"
 #include "dsp_hwec.h"
 
-/* uncomment for debugging */
-/*#define PIPELINE_DEBUG*/
-
 struct dsp_pipeline_entry {
 	struct mISDN_dsp_element *elem;
 	void                *p;
@@ -104,10 +101,6 @@ int mISDN_dsp_element_register(struct mISDN_dsp_element *elem)
 		}
 	}
 
-#ifdef PIPELINE_DEBUG
-	printk(KERN_DEBUG "%s: %s registered\n", __func__, elem->name);
-#endif
-
 	return 0;
 
 err2:
@@ -129,10 +122,6 @@ void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem)
 	list_for_each_entry_safe(entry, n, &dsp_elements, list)
 		if (entry->elem == elem) {
 			device_unregister(&entry->dev);
-#ifdef PIPELINE_DEBUG
-			printk(KERN_DEBUG "%s: %s unregistered\n",
-			       __func__, elem->name);
-#endif
 			return;
 		}
 	printk(KERN_ERR "%s: element %s not in list.\n", __func__, elem->name);
@@ -145,10 +134,6 @@ int dsp_pipeline_module_init(void)
 	if (IS_ERR(elements_class))
 		return PTR_ERR(elements_class);
 
-#ifdef PIPELINE_DEBUG
-	printk(KERN_DEBUG "%s: dsp pipeline module initialized\n", __func__);
-#endif
-
 	dsp_hwec_init();
 
 	return 0;
@@ -168,10 +153,6 @@ void dsp_pipeline_module_exit(void)
 		       __func__, entry->elem->name);
 		kfree(entry);
 	}
-
-#ifdef PIPELINE_DEBUG
-	printk(KERN_DEBUG "%s: dsp pipeline module exited\n", __func__);
-#endif
 }
 
 int dsp_pipeline_init(struct dsp_pipeline *pipeline)
@@ -181,10 +162,6 @@ int dsp_pipeline_init(struct dsp_pipeline *pipeline)
 
 	INIT_LIST_HEAD(&pipeline->list);
 
-#ifdef PIPELINE_DEBUG
-	printk(KERN_DEBUG "%s: dsp pipeline ready\n", __func__);
-#endif
-
 	return 0;
 }
 
@@ -210,15 +187,11 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline)
 		return;
 
 	_dsp_pipeline_destroy(pipeline);
-
-#ifdef PIPELINE_DEBUG
-	printk(KERN_DEBUG "%s: dsp pipeline destroyed\n", __func__);
-#endif
 }
 
 int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
 {
-	int incomplete = 0, found = 0;
+	int found = 0;
 	char *dup, *tok, *name, *args;
 	struct dsp_element_entry *entry, *n;
 	struct dsp_pipeline_entry *pipeline_entry;
@@ -251,7 +224,6 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
 					printk(KERN_ERR "%s: failed to add "
 					       "entry to pipeline: %s (out of "
 					       "memory)\n", __func__, elem->name);
-					incomplete = 1;
 					goto _out;
 				}
 				pipeline_entry->elem = elem;
@@ -268,20 +240,12 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
 					if (pipeline_entry->p) {
 						list_add_tail(&pipeline_entry->
 							      list, &pipeline->list);
-#ifdef PIPELINE_DEBUG
-						printk(KERN_DEBUG "%s: created "
-						       "instance of %s%s%s\n",
-						       __func__, name, args ?
-						       " with args " : "", args ?
-						       args : "");
-#endif
 					} else {
 						printk(KERN_ERR "%s: failed "
 						       "to add entry to pipeline: "
 						       "%s (new() returned NULL)\n",
 						       __func__, elem->name);
 						kfree(pipeline_entry);
-						incomplete = 1;
 					}
 				}
 				found = 1;
@@ -290,11 +254,9 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
 
 		if (found)
 			found = 0;
-		else {
+		else
 			printk(KERN_ERR "%s: element not found, skipping: "
 			       "%s\n", __func__, name);
-			incomplete = 1;
-		}
 	}
 
 _out:
@@ -303,10 +265,6 @@ _out:
 	else
 		pipeline->inuse = 0;
 
-#ifdef PIPELINE_DEBUG
-	printk(KERN_DEBUG "%s: dsp pipeline built%s: %s\n",
-	       __func__, incomplete ? " incomplete" : "", cfg);
-#endif
 	kfree(dup);
 	return 0;
 }
-- 
GitLab


From a3d5fcc6cf2ecbba5a269631092570aa285a24cb Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Fri, 4 Mar 2022 21:25:36 +0300
Subject: [PATCH 4468/4878] mISDN: Fix memory leak in dsp_pipeline_build()

[ Upstream commit c6a502c2299941c8326d029cfc8a3bc8a4607ad5 ]

dsp_pipeline_build() allocates dup pointer by kstrdup(cfg),
but then it updates dup variable by strsep(&dup, "|").
As a result when it calls kfree(dup), the dup variable contains NULL.

Found by Linux Driver Verification project (linuxtesting.org) with SVACE.

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Fixes: 960366cf8dbb ("Add mISDN DSP")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/isdn/mISDN/dsp_pipeline.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c
index e11ca6bbc7f41..c3b2c99b5cd5c 100644
--- a/drivers/isdn/mISDN/dsp_pipeline.c
+++ b/drivers/isdn/mISDN/dsp_pipeline.c
@@ -192,7 +192,7 @@ void dsp_pipeline_destroy(struct dsp_pipeline *pipeline)
 int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
 {
 	int found = 0;
-	char *dup, *tok, *name, *args;
+	char *dup, *next, *tok, *name, *args;
 	struct dsp_element_entry *entry, *n;
 	struct dsp_pipeline_entry *pipeline_entry;
 	struct mISDN_dsp_element *elem;
@@ -203,10 +203,10 @@ int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg)
 	if (!list_empty(&pipeline->list))
 		_dsp_pipeline_destroy(pipeline);
 
-	dup = kstrdup(cfg, GFP_ATOMIC);
+	dup = next = kstrdup(cfg, GFP_ATOMIC);
 	if (!dup)
 		return 0;
-	while ((tok = strsep(&dup, "|"))) {
+	while ((tok = strsep(&next, "|"))) {
 		if (!strlen(tok))
 			continue;
 		name = strsep(&tok, "(");
-- 
GitLab


From cca9d5035bd055a8824ae9e8e1e144eb22ae4b0b Mon Sep 17 00:00:00 2001
From: Xie Yongji <xieyongji@bytedance.com>
Date: Fri, 4 Mar 2022 18:00:57 +0800
Subject: [PATCH 4469/4878] virtio-blk: Don't use MAX_DISCARD_SEGMENTS if
 max_discard_seg is zero

[ Upstream commit dacc73ed0b88f1a787ec20385f42ca9dd9eddcd0 ]

Currently the value of max_discard_segment will be set to
MAX_DISCARD_SEGMENTS (256) with no basis in hardware if device
set 0 to max_discard_seg in configuration space. It's incorrect
since the device might not be able to handle such large descriptors.
To fix it, let's follow max_segments restrictions in this case.

Fixes: 1f23816b8eb8 ("virtio_blk: add discard and write zeroes support")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20220304100058.116-1-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/virtio_blk.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 42acf9587ef38..a03390127741f 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -869,9 +869,15 @@ static int virtblk_probe(struct virtio_device *vdev)
 
 		virtio_cread(vdev, struct virtio_blk_config, max_discard_seg,
 			     &v);
+
+		/*
+		 * max_discard_seg == 0 is out of spec but we always
+		 * handled it.
+		 */
+		if (!v)
+			v = sg_elems - 2;
 		blk_queue_max_discard_segments(q,
-					       min_not_zero(v,
-							    MAX_DISCARD_SEGMENTS));
+					       min(v, MAX_DISCARD_SEGMENTS));
 
 		blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
 	}
-- 
GitLab


From 33c74f8085961308249c2d27097bb6d393305cbc Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Sat, 5 Mar 2022 00:58:16 -0800
Subject: [PATCH 4470/4878] isdn: hfcpci: check the return value of
 dma_set_mask() in setup_hw()

[ Upstream commit d0aeb0d4a3f7d2a0df7e9545892bbeede8f2ac7e ]

The function dma_set_mask() in setup_hw() can fail, so its return value
should be checked.

Fixes: 1700fe1a10dc ("Add mISDN HFC PCI driver")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/isdn/hardware/mISDN/hfcpci.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c
index bd087cca1c1d2..af17459c1a5c0 100644
--- a/drivers/isdn/hardware/mISDN/hfcpci.c
+++ b/drivers/isdn/hardware/mISDN/hfcpci.c
@@ -2005,7 +2005,11 @@ setup_hw(struct hfc_pci *hc)
 	}
 	/* Allocate memory for FIFOS */
 	/* the memory needs to be on a 32k boundary within the first 4G */
-	dma_set_mask(&hc->pdev->dev, 0xFFFF8000);
+	if (dma_set_mask(&hc->pdev->dev, 0xFFFF8000)) {
+		printk(KERN_WARNING
+		       "HFC-PCI: No usable DMA configuration!\n");
+		return -EIO;
+	}
 	buffer = dma_alloc_coherent(&hc->pdev->dev, 0x8000, &hc->hw.dmahandle,
 				    GFP_KERNEL);
 	/* We silently assume the address is okay if nonzero */
-- 
GitLab


From 16386479ef596e69f7ef6c887765e04002449c30 Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Sat, 5 Mar 2022 01:14:11 -0800
Subject: [PATCH 4471/4878] net: qlogic: check the return value of
 dma_alloc_coherent() in qed_vf_hw_prepare()

[ Upstream commit e0058f0fa80f6e09c4d363779c241c45a3c56b94 ]

The function dma_alloc_coherent() in qed_vf_hw_prepare() can fail, so
its return value should be checked.

Fixes: 1408cc1fa48c ("qed: Introduce VFs")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_vf.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c
index 72a38d53d33f6..e2a5a6a373cbe 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_vf.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c
@@ -513,6 +513,9 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
 						    p_iov->bulletin.size,
 						    &p_iov->bulletin.phys,
 						    GFP_KERNEL);
+	if (!p_iov->bulletin.p_virt)
+		goto free_pf2vf_reply;
+
 	DP_VERBOSE(p_hwfn, QED_MSG_IOV,
 		   "VF's bulletin Board [%p virt 0x%llx phys 0x%08x bytes]\n",
 		   p_iov->bulletin.p_virt,
@@ -552,6 +555,10 @@ int qed_vf_hw_prepare(struct qed_hwfn *p_hwfn)
 
 	return rc;
 
+free_pf2vf_reply:
+	dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+			  sizeof(union pfvf_tlvs),
+			  p_iov->pf2vf_reply, p_iov->pf2vf_reply_phys);
 free_vf2pf_request:
 	dma_free_coherent(&p_hwfn->cdev->pdev->dev,
 			  sizeof(union vfpf_tlvs),
-- 
GitLab


From 5bee2ed0508b0b0ea6b2e2284d575386bd396c94 Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Mon, 7 Mar 2022 13:11:40 +0100
Subject: [PATCH 4472/4878] esp: Fix BEET mode inter address family tunneling
 on GSO

[ Upstream commit 053c8fdf2c930efdff5496960842bbb5c34ad43a ]

The xfrm{4,6}_beet_gso_segment() functions did not correctly set the
SKB_GSO_IPXIP4 and SKB_GSO_IPXIP6 gso types for the address family
tunneling case. Fix this by setting these gso types.

Fixes: 384a46ea7bdc7 ("esp4: add gso_segment for esp4 beet mode")
Fixes: 7f9e40eb18a99 ("esp6: add gso_segment for esp6 beet mode")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/esp4_offload.c | 3 +++
 net/ipv6/esp6_offload.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c
index 5aa7344dbec7f..3450c9ba2728c 100644
--- a/net/ipv4/esp4_offload.c
+++ b/net/ipv4/esp4_offload.c
@@ -160,6 +160,9 @@ static struct sk_buff *xfrm4_beet_gso_segment(struct xfrm_state *x,
 			skb_shinfo(skb)->gso_type |= SKB_GSO_TCPV4;
 	}
 
+	if (proto == IPPROTO_IPV6)
+		skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP4;
+
 	__skb_pull(skb, skb_transport_offset(skb));
 	ops = rcu_dereference(inet_offloads[proto]);
 	if (likely(ops && ops->callbacks.gso_segment))
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index 4af56affaafd4..1c3f02d05d2bf 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -198,6 +198,9 @@ static struct sk_buff *xfrm6_beet_gso_segment(struct xfrm_state *x,
 			ipv6_skip_exthdr(skb, 0, &proto, &frag);
 	}
 
+	if (proto == IPPROTO_IPIP)
+		skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6;
+
 	__skb_pull(skb, skb_transport_offset(skb));
 	ops = rcu_dereference(inet6_offloads[proto]);
 	if (likely(ops && ops->callbacks.gso_segment))
-- 
GitLab


From 93223495bce53a1a6c30c358bc522d8ea125e359 Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@redhat.com>
Date: Sat, 5 Mar 2022 07:06:42 -0800
Subject: [PATCH 4473/4878] qed: return status of qed_iov_get_link

[ Upstream commit d9dc0c84ad2d4cc911ba252c973d1bf18d5eb9cf ]

Clang static analysis reports this issue
qed_sriov.c:4727:19: warning: Assigned value is
  garbage or undefined
  ivi->max_tx_rate = tx_rate ? tx_rate : link.speed;
                   ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

link is only sometimes set by the call to qed_iov_get_link()
qed_iov_get_link fails without setting link or returning
status.  So change the decl to return status.

Fixes: 73390ac9d82b ("qed*: support ndo_get_vf_config")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_sriov.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_sriov.c b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
index b8dc5c4591ef5..ef0ad4cf82e60 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sriov.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sriov.c
@@ -3778,11 +3778,11 @@ bool qed_iov_mark_vf_flr(struct qed_hwfn *p_hwfn, u32 *p_disabled_vfs)
 	return found;
 }
 
-static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
-			     u16 vfid,
-			     struct qed_mcp_link_params *p_params,
-			     struct qed_mcp_link_state *p_link,
-			     struct qed_mcp_link_capabilities *p_caps)
+static int qed_iov_get_link(struct qed_hwfn *p_hwfn,
+			    u16 vfid,
+			    struct qed_mcp_link_params *p_params,
+			    struct qed_mcp_link_state *p_link,
+			    struct qed_mcp_link_capabilities *p_caps)
 {
 	struct qed_vf_info *p_vf = qed_iov_get_vf_info(p_hwfn,
 						       vfid,
@@ -3790,7 +3790,7 @@ static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
 	struct qed_bulletin_content *p_bulletin;
 
 	if (!p_vf)
-		return;
+		return -EINVAL;
 
 	p_bulletin = p_vf->bulletin.p_virt;
 
@@ -3800,6 +3800,7 @@ static void qed_iov_get_link(struct qed_hwfn *p_hwfn,
 		__qed_vf_get_link_state(p_hwfn, p_link, p_bulletin);
 	if (p_caps)
 		__qed_vf_get_link_caps(p_hwfn, p_caps, p_bulletin);
+	return 0;
 }
 
 static int
@@ -4658,6 +4659,7 @@ static int qed_get_vf_config(struct qed_dev *cdev,
 	struct qed_public_vf_info *vf_info;
 	struct qed_mcp_link_state link;
 	u32 tx_rate;
+	int ret;
 
 	/* Sanitize request */
 	if (IS_VF(cdev))
@@ -4671,7 +4673,9 @@ static int qed_get_vf_config(struct qed_dev *cdev,
 
 	vf_info = qed_iov_get_public_vf_info(hwfn, vf_id, true);
 
-	qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL);
+	ret = qed_iov_get_link(hwfn, vf_id, NULL, &link, NULL);
+	if (ret)
+		return ret;
 
 	/* Fill information about VF */
 	ivi->vf = vf_id;
-- 
GitLab


From ed5bb00d860411e3f87e4956b682bddd4b92d128 Mon Sep 17 00:00:00 2001
From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Mon, 28 Feb 2022 19:14:36 +0100
Subject: [PATCH 4474/4878] drm/sun4i: mixer: Fix P010 and P210 format numbers

[ Upstream commit 9470c29faa91c804aa04de4c10634bf02462bfa5 ]

It turns out that DE3 manual has inverted YUV and YVU format numbers for
P010 and P210. Invert them.

This was tested by playing video decoded to P010 and additionally
confirmed by looking at BSP driver source.

Fixes: 169ca4b38932 ("drm/sun4i: Add separate DE3 VI layer formats")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220228181436.1424550-1-jernej.skrabec@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun8i_mixer.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index 7576b523fdbb1..b0178c045267c 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -113,10 +113,10 @@
 /* format 13 is semi-planar YUV411 VUVU */
 #define SUN8I_MIXER_FBFMT_YUV411	14
 /* format 15 doesn't exist */
-/* format 16 is P010 YVU */
-#define SUN8I_MIXER_FBFMT_P010_YUV	17
-/* format 18 is P210 YVU */
-#define SUN8I_MIXER_FBFMT_P210_YUV	19
+#define SUN8I_MIXER_FBFMT_P010_YUV	16
+/* format 17 is P010 YVU */
+#define SUN8I_MIXER_FBFMT_P210_YUV	18
+/* format 19 is P210 YVU */
 /* format 20 is packed YVU444 10-bit */
 /* format 21 is packed YUV444 10-bit */
 
-- 
GitLab


From 96b01b8541515009ea81e4c4efd362e07ecb7d33 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Mon, 7 Mar 2022 12:13:30 +0000
Subject: [PATCH 4475/4878] net: dsa: mt7530: fix incorrect test in
 mt753x_phylink_validate()

[ Upstream commit e5417cbf7ab5df1632e68fe7d9e6331fc0e7dbd6 ]

Discussing one of the tests in mt753x_phylink_validate() with Landen
Chao confirms that the "||" should be "&&". Fix this.

Fixes: c288575f7810 ("net: dsa: mt7530: Add the support of MT7531 switch")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1nRCF0-00CiXD-7q@rmk-PC.armlinux.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/mt7530.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 1f642fdbf214c..5ee8809bc2711 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2342,7 +2342,7 @@ mt753x_phylink_validate(struct dsa_switch *ds, int port,
 
 	phylink_set_port_modes(mask);
 
-	if (state->interface != PHY_INTERFACE_MODE_TRGMII ||
+	if (state->interface != PHY_INTERFACE_MODE_TRGMII &&
 	    !phy_interface_mode_is_8023z(state->interface)) {
 		phylink_set(mask, 10baseT_Half);
 		phylink_set(mask, 10baseT_Full);
-- 
GitLab


From 965070a2b71d8debcfd60ce73a3ce42aa90da8ca Mon Sep 17 00:00:00 2001
From: Joel Stanley <joel@jms.id.au>
Date: Tue, 8 Mar 2022 10:36:31 +1030
Subject: [PATCH 4476/4878] ARM: dts: aspeed: Fix AST2600 quad spi group
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 2f6edb6bcb2f3f41d876e0eba2ba97f87a0296ea ]

Requesting quad mode for the FMC resulted in an error:

  &fmc {
         status = "okay";
 +       pinctrl-names = "default";
 +       pinctrl-0 = <&pinctrl_fwqspi_default>'

[    0.742963] aspeed-g6-pinctrl 1e6e2000.syscon:pinctrl: invalid function FWQSPID in map table


This is because the quad mode pins are a group of pins, not a function.

After applying this patch we can request the pins and the QSPI data
lines are muxed:

 # cat /sys/kernel/debug/pinctrl/1e6e2000.syscon\:pinctrl-aspeed-g6-pinctrl/pinmux-pins |grep 1e620000.spi
 pin 196 (AE12): device 1e620000.spi function FWSPID group FWQSPID
 pin 197 (AF12): device 1e620000.spi function FWSPID group FWQSPID
 pin 240 (Y1): device 1e620000.spi function FWSPID group FWQSPID
 pin 241 (Y2): device 1e620000.spi function FWSPID group FWQSPID
 pin 242 (Y3): device 1e620000.spi function FWSPID group FWQSPID
 pin 243 (Y4): device 1e620000.spi function FWSPID group FWQSPID

Fixes: f510f04c8c83 ("ARM: dts: aspeed: Add AST2600 pinmux nodes")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20220304011010.974863-1-joel@jms.id.au
Link: https://lore.kernel.org/r/20220304011010.974863-1-joel@jms.id.au'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
index 910eacc8ad3bd..a362714ae9fc0 100644
--- a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi
@@ -118,7 +118,7 @@
 	};
 
 	pinctrl_fwqspid_default: fwqspid_default {
-		function = "FWQSPID";
+		function = "FWSPID";
 		groups = "FWQSPID";
 	};
 
-- 
GitLab


From d9ee2cbff2e9fb71ca2deac43997adaab4df15cf Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Wed, 16 Feb 2022 16:51:35 -0800
Subject: [PATCH 4477/4878] i40e: stop disabling VFs due to PF error responses

[ Upstream commit 5710ab79166504013f7c0ae6a57e7d2fd26e5c43 ]

The i40e_vc_send_msg_to_vf_ex (and its wrapper i40e_vc_send_msg_to_vf)
function has logic to detect "failure" responses sent to the VF. If a VF
is sent more than I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED, then the VF is
marked as disabled. In either case, a dev_info message is printed
stating that a VF opcode failed.

This logic originates from the early implementation of VF support in
commit 5c3c48ac6bf5 ("i40e: implement virtual device interface").

That commit did not go far enough. The "logic" for this behavior seems
to be that error responses somehow indicate a malicious VF. This is not
really true. The PF might be sending an error for any number of reasons
such as lacking resources, an unsupported operation, etc. This does not
indicate a malicious VF. We already have a separate robust malicious VF
detection which relies on hardware logic to detect and prevent a variety
of behaviors.

There is no justification for this behavior in the original
implementation. In fact, a later commit 18b7af57d9c1 ("i40e: Lower some
message levels") reduced the opcode failure message from a dev_err to a
dev_info. In addition, recent commit 01cbf50877e6 ("i40e: Fix to not
show opcode msg on unsuccessful VF MAC change") changed the logic to
allow quieting it for expected failures.

That commit prevented this logic from kicking in for specific
circumstances. This change did not go far enough. The behavior is not
documented nor is it part of any requirement for our products. Other
operating systems such as the FreeBSD implementation of our driver do
not include this logic.

It is clear this check does not make sense, and causes problems which
led to ugly workarounds.

Fix this by just removing the entire logic and the need for the
i40e_vc_send_msg_to_vf_ex function.

Fixes: 01cbf50877e6 ("i40e: Fix to not show opcode msg on unsuccessful VF MAC change")
Fixes: 5c3c48ac6bf5 ("i40e: implement virtual device interface")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/intel/i40e/i40e_debugfs.c    |  6 +-
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    | 57 +++----------------
 .../ethernet/intel/i40e/i40e_virtchnl_pf.h    |  5 --
 3 files changed, 9 insertions(+), 59 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 1114a15a9ce3c..989d5c7263d7c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -742,10 +742,8 @@ static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
 		vsi = pf->vsi[vf->lan_vsi_idx];
 		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
 			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
-		dev_info(&pf->pdev->dev, "       num MDD=%lld, invalid msg=%lld, valid msg=%lld\n",
-			 vf->num_mdd_events,
-			 vf->num_invalid_msgs,
-			 vf->num_valid_msgs);
+		dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
+			 vf->num_mdd_events);
 	} else {
 		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
 	}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index f71b7334e2955..9181e007e0392 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -1864,19 +1864,17 @@ sriov_configure_out:
 /***********************virtual channel routines******************/
 
 /**
- * i40e_vc_send_msg_to_vf_ex
+ * i40e_vc_send_msg_to_vf
  * @vf: pointer to the VF info
  * @v_opcode: virtual channel opcode
  * @v_retval: virtual channel return value
  * @msg: pointer to the msg buffer
  * @msglen: msg length
- * @is_quiet: true for not printing unsuccessful return values, false otherwise
  *
  * send msg to VF
  **/
-static int i40e_vc_send_msg_to_vf_ex(struct i40e_vf *vf, u32 v_opcode,
-				     u32 v_retval, u8 *msg, u16 msglen,
-				     bool is_quiet)
+static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
+				  u32 v_retval, u8 *msg, u16 msglen)
 {
 	struct i40e_pf *pf;
 	struct i40e_hw *hw;
@@ -1891,25 +1889,6 @@ static int i40e_vc_send_msg_to_vf_ex(struct i40e_vf *vf, u32 v_opcode,
 	hw = &pf->hw;
 	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
 
-	/* single place to detect unsuccessful return values */
-	if (v_retval && !is_quiet) {
-		vf->num_invalid_msgs++;
-		dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
-			 vf->vf_id, v_opcode, v_retval);
-		if (vf->num_invalid_msgs >
-		    I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
-			dev_err(&pf->pdev->dev,
-				"Number of invalid messages exceeded for VF %d\n",
-				vf->vf_id);
-			dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
-			set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
-		}
-	} else {
-		vf->num_valid_msgs++;
-		/* reset the invalid counter, if a valid message is received. */
-		vf->num_invalid_msgs = 0;
-	}
-
 	aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id,	v_opcode, v_retval,
 					msg, msglen, NULL);
 	if (aq_ret) {
@@ -1922,23 +1901,6 @@ static int i40e_vc_send_msg_to_vf_ex(struct i40e_vf *vf, u32 v_opcode,
 	return 0;
 }
 
-/**
- * i40e_vc_send_msg_to_vf
- * @vf: pointer to the VF info
- * @v_opcode: virtual channel opcode
- * @v_retval: virtual channel return value
- * @msg: pointer to the msg buffer
- * @msglen: msg length
- *
- * send msg to VF
- **/
-static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
-				  u32 v_retval, u8 *msg, u16 msglen)
-{
-	return i40e_vc_send_msg_to_vf_ex(vf, v_opcode, v_retval,
-					 msg, msglen, false);
-}
-
 /**
  * i40e_vc_send_resp_to_vf
  * @vf: pointer to the VF info
@@ -2759,7 +2721,6 @@ error_param:
  * i40e_check_vf_permission
  * @vf: pointer to the VF info
  * @al: MAC address list from virtchnl
- * @is_quiet: set true for printing msg without opcode info, false otherwise
  *
  * Check that the given list of MAC addresses is allowed. Will return -EPERM
  * if any address in the list is not valid. Checks the following conditions:
@@ -2774,15 +2735,13 @@ error_param:
  * addresses might not be accurate.
  **/
 static inline int i40e_check_vf_permission(struct i40e_vf *vf,
-					   struct virtchnl_ether_addr_list *al,
-					   bool *is_quiet)
+					   struct virtchnl_ether_addr_list *al)
 {
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
 	int mac2add_cnt = 0;
 	int i;
 
-	*is_quiet = false;
 	for (i = 0; i < al->num_elements; i++) {
 		struct i40e_mac_filter *f;
 		u8 *addr = al->list[i].addr;
@@ -2806,7 +2765,6 @@ static inline int i40e_check_vf_permission(struct i40e_vf *vf,
 		    !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
 			dev_err(&pf->pdev->dev,
 				"VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
-			*is_quiet = true;
 			return -EPERM;
 		}
 
@@ -2843,7 +2801,6 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 	    (struct virtchnl_ether_addr_list *)msg;
 	struct i40e_pf *pf = vf->pf;
 	struct i40e_vsi *vsi = NULL;
-	bool is_quiet = false;
 	i40e_status ret = 0;
 	int i;
 
@@ -2860,7 +2817,7 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 	 */
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
 
-	ret = i40e_check_vf_permission(vf, al, &is_quiet);
+	ret = i40e_check_vf_permission(vf, al);
 	if (ret) {
 		spin_unlock_bh(&vsi->mac_filter_hash_lock);
 		goto error_param;
@@ -2898,8 +2855,8 @@ static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
 
 error_param:
 	/* send the response to the VF */
-	return i40e_vc_send_msg_to_vf_ex(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
-				       ret, NULL, 0, is_quiet);
+	return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
+				      ret, NULL, 0);
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
index 03c42fd0fea19..a554d0a0b09bd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h
@@ -10,8 +10,6 @@
 
 #define I40E_VIRTCHNL_SUPPORTED_QTYPES 2
 
-#define I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED	10
-
 #define I40E_VLAN_PRIORITY_SHIFT	13
 #define I40E_VLAN_MASK			0xFFF
 #define I40E_PRIORITY_MASK		0xE000
@@ -92,9 +90,6 @@ struct i40e_vf {
 	u8 num_queue_pairs;	/* num of qps assigned to VF vsis */
 	u8 num_req_queues;	/* num of requested qps */
 	u64 num_mdd_events;	/* num of mdd events detected */
-	/* num of continuous malformed or invalid msgs detected */
-	u64 num_invalid_msgs;
-	u64 num_valid_msgs;	/* num of valid msgs detected */
 
 	unsigned long vf_caps;	/* vf's adv. capabilities */
 	unsigned long vf_states;	/* vf's runtime states */
-- 
GitLab


From 8c613f7cd3ca0cf056c6232a3e48f1eeba5ce62e Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Wed, 16 Feb 2022 16:51:36 -0800
Subject: [PATCH 4478/4878] ice: stop disabling VFs due to PF error responses

[ Upstream commit 79498d5af8e458102242d1667cf44df1f1564e63 ]

The ice_vc_send_msg_to_vf function has logic to detect "failure"
responses being sent to a VF. If a VF is sent more than
ICE_DFLT_NUM_INVAL_MSGS_ALLOWED then the VF is marked as disabled.
Almost identical logic also existed in the i40e driver.

This logic was added to the ice driver in commit 1071a8358a28 ("ice:
Implement virtchnl commands for AVF support") which itself copied from
the i40e implementation in commit 5c3c48ac6bf5 ("i40e: implement virtual
device interface").

Neither commit provides a proper explanation or justification of the
check. In fact, later commits to i40e changed the logic to allow
bypassing the check in some specific instances.

The "logic" for this seems to be that error responses somehow indicate a
malicious VF. This is not really true. The PF might be sending an error
for any number of reasons such as lack of resources, etc.

Additionally, this causes the PF to log an info message for every failed
VF response which may confuse users, and can spam the kernel log.

This behavior is not documented as part of any requirement for our
products and other operating system drivers such as the FreeBSD
implementation of our drivers do not include this type of check.

In fact, the change from dev_err to dev_info in i40e commit 18b7af57d9c1
("i40e: Lower some message levels") explains that these messages
typically don't actually indicate a real issue. It is quite likely that
a user who hits this in practice will be very confused as the VF will be
disabled without an obvious way to recover.

We already have robust malicious driver detection logic using actual
hardware detection mechanisms that detect and prevent invalid device
usage. Remove the logic since its not a documented requirement and the
behavior is not intuitive.

Fixes: 1071a8358a28 ("ice: Implement virtchnl commands for AVF support")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/intel/ice/ice_virtchnl_pf.c   | 18 ------------------
 .../net/ethernet/intel/ice/ice_virtchnl_pf.h   |  3 ---
 2 files changed, 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 48511ad0e0c82..5134342ff70fc 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -1849,24 +1849,6 @@ ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
 
 	dev = ice_pf_to_dev(pf);
 
-	/* single place to detect unsuccessful return values */
-	if (v_retval) {
-		vf->num_inval_msgs++;
-		dev_info(dev, "VF %d failed opcode %d, retval: %d\n", vf->vf_id,
-			 v_opcode, v_retval);
-		if (vf->num_inval_msgs > ICE_DFLT_NUM_INVAL_MSGS_ALLOWED) {
-			dev_err(dev, "Number of invalid messages exceeded for VF %d\n",
-				vf->vf_id);
-			dev_err(dev, "Use PF Control I/F to enable the VF\n");
-			set_bit(ICE_VF_STATE_DIS, vf->vf_states);
-			return -EIO;
-		}
-	} else {
-		vf->num_valid_msgs++;
-		/* reset the invalid counter, if a valid message is received. */
-		vf->num_inval_msgs = 0;
-	}
-
 	aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
 				       msg, msglen, NULL);
 	if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
index 59e5b4f16e965..d2e935c678a14 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h
@@ -13,7 +13,6 @@
 #define ICE_MAX_MACADDR_PER_VF		18
 
 /* Malicious Driver Detection */
-#define ICE_DFLT_NUM_INVAL_MSGS_ALLOWED		10
 #define ICE_MDD_EVENTS_THRESHOLD		30
 
 /* Static VF transaction/status register def */
@@ -97,8 +96,6 @@ struct ice_vf {
 	unsigned int tx_rate;		/* Tx bandwidth limit in Mbps */
 	DECLARE_BITMAP(vf_states, ICE_VF_STATES_NBITS);	/* VF runtime states */
 
-	u64 num_inval_msgs;		/* number of continuous invalid msgs */
-	u64 num_valid_msgs;		/* number of valid msgs detected */
 	unsigned long vf_caps;		/* VF's adv. capabilities */
 	u8 num_req_qs;			/* num of queue pairs requested by VF */
 	u16 num_mac;
-- 
GitLab


From 875967aff5a654e78539339899c54a76c212ef5d Mon Sep 17 00:00:00 2001
From: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Date: Thu, 25 Mar 2021 15:35:06 -0700
Subject: [PATCH 4479/4878] ice: Align macro names to the specification

[ Upstream commit d6730a871e68f10c786cdee59aebd6f92d49d249 ]

For get PHY abilities AQ, the specification defines "report modes"
as "with media", "without media" and "active configuration". For
clarity, rename macros to align with the specification.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_adminq_cmd.h | 10 +++++-----
 drivers/net/ethernet/intel/ice/ice_common.c     | 13 +++++++------
 drivers/net/ethernet/intel/ice/ice_ethtool.c    | 12 ++++++------
 drivers/net/ethernet/intel/ice/ice_main.c       | 12 ++++++------
 4 files changed, 24 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index b06fbe99d8e93..b6dd8f81d6997 100644
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -870,11 +870,11 @@ struct ice_aqc_get_phy_caps {
 	 * 01b - Report topology capabilities
 	 * 10b - Report SW configured
 	 */
-#define ICE_AQC_REPORT_MODE_S		1
-#define ICE_AQC_REPORT_MODE_M		(3 << ICE_AQC_REPORT_MODE_S)
-#define ICE_AQC_REPORT_NVM_CAP		0
-#define ICE_AQC_REPORT_TOPO_CAP		BIT(1)
-#define ICE_AQC_REPORT_SW_CFG		BIT(2)
+#define ICE_AQC_REPORT_MODE_S			1
+#define ICE_AQC_REPORT_MODE_M			(3 << ICE_AQC_REPORT_MODE_S)
+#define ICE_AQC_REPORT_TOPO_CAP_NO_MEDIA	0
+#define ICE_AQC_REPORT_TOPO_CAP_MEDIA		BIT(1)
+#define ICE_AQC_REPORT_ACTIVE_CFG		BIT(2)
 	__le32 reserved1;
 	__le32 addr_high;
 	__le32 addr_low;
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 2b0d0373ab2c6..ecdc467c4f6f5 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -193,7 +193,7 @@ ice_aq_get_phy_caps(struct ice_port_info *pi, bool qual_mods, u8 report_mode,
 	ice_debug(hw, ICE_DBG_LINK, "   module_type[2] = 0x%x\n",
 		  pcaps->module_type[2]);
 
-	if (!status && report_mode == ICE_AQC_REPORT_TOPO_CAP) {
+	if (!status && report_mode == ICE_AQC_REPORT_TOPO_CAP_MEDIA) {
 		pi->phy.phy_type_low = le64_to_cpu(pcaps->phy_type_low);
 		pi->phy.phy_type_high = le64_to_cpu(pcaps->phy_type_high);
 		memcpy(pi->phy.link_info.module_type, &pcaps->module_type,
@@ -924,7 +924,8 @@ enum ice_status ice_init_hw(struct ice_hw *hw)
 
 	/* Initialize port_info struct with PHY capabilities */
 	status = ice_aq_get_phy_caps(hw->port_info, false,
-				     ICE_AQC_REPORT_TOPO_CAP, pcaps, NULL);
+				     ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps,
+				     NULL);
 	devm_kfree(ice_hw_to_dev(hw), pcaps);
 	if (status)
 		goto err_unroll_sched;
@@ -2682,7 +2683,7 @@ enum ice_status ice_update_link_info(struct ice_port_info *pi)
 		if (!pcaps)
 			return ICE_ERR_NO_MEMORY;
 
-		status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
+		status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
 					     pcaps, NULL);
 
 		devm_kfree(ice_hw_to_dev(hw), pcaps);
@@ -2842,8 +2843,8 @@ ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool ena_auto_link_update)
 		return ICE_ERR_NO_MEMORY;
 
 	/* Get the current PHY config */
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
-				     NULL);
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG,
+				     pcaps, NULL);
 	if (status) {
 		*aq_failures = ICE_SET_FC_AQ_FAIL_GET;
 		goto out;
@@ -2989,7 +2990,7 @@ ice_cfg_phy_fec(struct ice_port_info *pi, struct ice_aqc_set_phy_cfg_data *cfg,
 	if (!pcaps)
 		return ICE_ERR_NO_MEMORY;
 
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps,
 				     NULL);
 	if (status)
 		goto out;
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 14eba9bc174d8..be02f8f4d8545 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -1081,7 +1081,7 @@ ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam)
 	if (!caps)
 		return -ENOMEM;
 
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
 				     caps, NULL);
 	if (status) {
 		err = -EAGAIN;
@@ -1976,7 +1976,7 @@ ice_get_link_ksettings(struct net_device *netdev,
 		return -ENOMEM;
 
 	status = ice_aq_get_phy_caps(vsi->port_info, false,
-				     ICE_AQC_REPORT_SW_CFG, caps, NULL);
+				     ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
 	if (status) {
 		err = -EIO;
 		goto done;
@@ -2013,7 +2013,7 @@ ice_get_link_ksettings(struct net_device *netdev,
 		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
 
 	status = ice_aq_get_phy_caps(vsi->port_info, false,
-				     ICE_AQC_REPORT_TOPO_CAP, caps, NULL);
+				     ICE_AQC_REPORT_TOPO_CAP_MEDIA, caps, NULL);
 	if (status) {
 		err = -EIO;
 		goto done;
@@ -2225,7 +2225,7 @@ ice_set_link_ksettings(struct net_device *netdev,
 		return -ENOMEM;
 
 	/* Get the PHY capabilities based on media */
-	status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_TOPO_CAP,
+	status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
 				     abilities, NULL);
 	if (status) {
 		err = -EAGAIN;
@@ -2954,7 +2954,7 @@ ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
 		return;
 
 	/* Get current PHY config */
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
 				     NULL);
 	if (status)
 		goto out;
@@ -3021,7 +3021,7 @@ ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
 		return -ENOMEM;
 
 	/* Get current PHY config */
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
 				     NULL);
 	if (status) {
 		kfree(pcaps);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 6c75df216fa7a..20c9d55f3adce 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -726,7 +726,7 @@ void ice_print_link_msg(struct ice_vsi *vsi, bool isup)
 	}
 
 	status = ice_aq_get_phy_caps(vsi->port_info, false,
-				     ICE_AQC_REPORT_SW_CFG, caps, NULL);
+				     ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL);
 	if (status)
 		netdev_info(vsi->netdev, "Get phy capability failed.\n");
 
@@ -1645,7 +1645,7 @@ static int ice_force_phys_link_state(struct ice_vsi *vsi, bool link_up)
 	if (!pcaps)
 		return -ENOMEM;
 
-	retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
+	retcode = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
 				      NULL);
 	if (retcode) {
 		dev_err(dev, "Failed to get phy capabilities, VSI %d error %d\n",
@@ -1705,7 +1705,7 @@ static int ice_init_nvm_phy_type(struct ice_port_info *pi)
 	if (!pcaps)
 		return -ENOMEM;
 
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_NVM_CAP, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_NO_MEDIA, pcaps,
 				     NULL);
 
 	if (status) {
@@ -1821,7 +1821,7 @@ static int ice_init_phy_user_cfg(struct ice_port_info *pi)
 	if (!pcaps)
 		return -ENOMEM;
 
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps,
 				     NULL);
 	if (status) {
 		dev_err(ice_pf_to_dev(pf), "Get PHY capability failed.\n");
@@ -1900,7 +1900,7 @@ static int ice_configure_phy(struct ice_vsi *vsi)
 		return -ENOMEM;
 
 	/* Get current PHY config */
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps,
 				     NULL);
 	if (status) {
 		dev_err(dev, "Failed to get PHY configuration, VSI %d error %s\n",
@@ -1918,7 +1918,7 @@ static int ice_configure_phy(struct ice_vsi *vsi)
 
 	/* Use PHY topology as baseline for configuration */
 	memset(pcaps, 0, sizeof(*pcaps));
-	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, pcaps,
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps,
 				     NULL);
 	if (status) {
 		dev_err(dev, "Failed to get PHY topology, VSI %d error %s\n",
-- 
GitLab


From b21ffd5469a9051227aef2ddfac18c14259576fb Mon Sep 17 00:00:00 2001
From: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Date: Thu, 25 Mar 2021 15:35:08 -0700
Subject: [PATCH 4480/4878] ice: Remove unnecessary checker loop

[ Upstream commit fd3dc1655eda6173566d56eaeb54f27ab4c9e33c ]

The loop checking for PF VSI doesn't make any sense. The VSI type
backing the netdev passed to ice_set_link_ksettings will always be
of type ICE_PF_VSI. Remove it.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index be02f8f4d8545..300fd5d0ff326 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -2189,8 +2189,8 @@ ice_set_link_ksettings(struct net_device *netdev,
 	struct ethtool_link_ksettings safe_ks, copy_ks;
 	struct ice_aqc_get_phy_caps_data *abilities;
 	u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
-	u16 adv_link_speed, curr_link_speed, idx;
 	struct ice_aqc_set_phy_cfg_data config;
+	u16 adv_link_speed, curr_link_speed;
 	struct ice_pf *pf = np->vsi->back;
 	struct ice_port_info *p;
 	u8 autoneg_changed = 0;
@@ -2205,14 +2205,6 @@ ice_set_link_ksettings(struct net_device *netdev,
 	if (!p)
 		return -EOPNOTSUPP;
 
-	/* Check if this is LAN VSI */
-	ice_for_each_vsi(pf, idx)
-		if (pf->vsi[idx]->type == ICE_VSI_PF) {
-			if (np->vsi != pf->vsi[idx])
-				return -EOPNOTSUPP;
-			break;
-		}
-
 	if (p->phy.media_type != ICE_MEDIA_BASET &&
 	    p->phy.media_type != ICE_MEDIA_FIBER &&
 	    p->phy.media_type != ICE_MEDIA_BACKPLANE &&
-- 
GitLab


From 852a9e97d396101b8bc224e876cdaaa2bbab4ce4 Mon Sep 17 00:00:00 2001
From: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Date: Thu, 25 Mar 2021 15:35:09 -0700
Subject: [PATCH 4481/4878] ice: Rename a couple of variables

[ Upstream commit 0be39bb4c7c8c358f7baf10296db2426f7cf814c ]

In ice_set_link_ksettings, change 'abilities' to 'phy_caps' and 'p' to
'pi'. This is more consistent with similar usages elsewhere in the
driver.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c | 50 ++++++++++----------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 300fd5d0ff326..0582fca5e07f0 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -2187,12 +2187,12 @@ ice_set_link_ksettings(struct net_device *netdev,
 {
 	struct ice_netdev_priv *np = netdev_priv(netdev);
 	struct ethtool_link_ksettings safe_ks, copy_ks;
-	struct ice_aqc_get_phy_caps_data *abilities;
 	u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT;
+	struct ice_aqc_get_phy_caps_data *phy_caps;
 	struct ice_aqc_set_phy_cfg_data config;
 	u16 adv_link_speed, curr_link_speed;
 	struct ice_pf *pf = np->vsi->back;
-	struct ice_port_info *p;
+	struct ice_port_info *pi;
 	u8 autoneg_changed = 0;
 	enum ice_status status;
 	u64 phy_type_high = 0;
@@ -2200,25 +2200,25 @@ ice_set_link_ksettings(struct net_device *netdev,
 	int err = 0;
 	bool linkup;
 
-	p = np->vsi->port_info;
+	pi = np->vsi->port_info;
 
-	if (!p)
+	if (!pi)
 		return -EOPNOTSUPP;
 
-	if (p->phy.media_type != ICE_MEDIA_BASET &&
-	    p->phy.media_type != ICE_MEDIA_FIBER &&
-	    p->phy.media_type != ICE_MEDIA_BACKPLANE &&
-	    p->phy.media_type != ICE_MEDIA_DA &&
-	    p->phy.link_info.link_info & ICE_AQ_LINK_UP)
+	if (pi->phy.media_type != ICE_MEDIA_BASET &&
+	    pi->phy.media_type != ICE_MEDIA_FIBER &&
+	    pi->phy.media_type != ICE_MEDIA_BACKPLANE &&
+	    pi->phy.media_type != ICE_MEDIA_DA &&
+	    pi->phy.link_info.link_info & ICE_AQ_LINK_UP)
 		return -EOPNOTSUPP;
 
-	abilities = kzalloc(sizeof(*abilities), GFP_KERNEL);
-	if (!abilities)
+	phy_caps = kzalloc(sizeof(*phy_caps), GFP_KERNEL);
+	if (!phy_caps)
 		return -ENOMEM;
 
 	/* Get the PHY capabilities based on media */
-	status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
-				     abilities, NULL);
+	status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
+				     phy_caps, NULL);
 	if (status) {
 		err = -EAGAIN;
 		goto done;
@@ -2280,26 +2280,26 @@ ice_set_link_ksettings(struct net_device *netdev,
 	 * configuration is initialized during probe from PHY capabilities
 	 * software mode, and updated on set PHY configuration.
 	 */
-	memcpy(&config, &p->phy.curr_user_phy_cfg, sizeof(config));
+	memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config));
 
 	config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
 
 	/* Check autoneg */
-	err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
+	err = ice_setup_autoneg(pi, &safe_ks, &config, autoneg, &autoneg_changed,
 				netdev);
 
 	if (err)
 		goto done;
 
 	/* Call to get the current link speed */
-	p->phy.get_link_info = true;
-	status = ice_get_link_status(p, &linkup);
+	pi->phy.get_link_info = true;
+	status = ice_get_link_status(pi, &linkup);
 	if (status) {
 		err = -EAGAIN;
 		goto done;
 	}
 
-	curr_link_speed = p->phy.link_info.link_speed;
+	curr_link_speed = pi->phy.link_info.link_speed;
 	adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
 
 	/* If speed didn't get set, set it to what it currently is.
@@ -2318,7 +2318,7 @@ ice_set_link_ksettings(struct net_device *netdev,
 	}
 
 	/* save the requested speeds */
-	p->phy.link_info.req_speeds = adv_link_speed;
+	pi->phy.link_info.req_speeds = adv_link_speed;
 
 	/* set link and auto negotiation so changes take effect */
 	config.caps |= ICE_AQ_PHY_ENA_LINK;
@@ -2334,9 +2334,9 @@ ice_set_link_ksettings(struct net_device *netdev,
 	 * for set PHY configuration
 	 */
 	config.phy_type_high = cpu_to_le64(phy_type_high) &
-			abilities->phy_type_high;
+			phy_caps->phy_type_high;
 	config.phy_type_low = cpu_to_le64(phy_type_low) &
-			abilities->phy_type_low;
+			phy_caps->phy_type_low;
 
 	if (!(config.phy_type_high || config.phy_type_low)) {
 		/* If there is no intersection and lenient mode is enabled, then
@@ -2356,7 +2356,7 @@ ice_set_link_ksettings(struct net_device *netdev,
 	}
 
 	/* If link is up put link down */
-	if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
+	if (pi->phy.link_info.link_info & ICE_AQ_LINK_UP) {
 		/* Tell the OS link is going down, the link will go
 		 * back up when fw says it is ready asynchronously
 		 */
@@ -2366,7 +2366,7 @@ ice_set_link_ksettings(struct net_device *netdev,
 	}
 
 	/* make the aq call */
-	status = ice_aq_set_phy_cfg(&pf->hw, p, &config, NULL);
+	status = ice_aq_set_phy_cfg(&pf->hw, pi, &config, NULL);
 	if (status) {
 		netdev_info(netdev, "Set phy config failed,\n");
 		err = -EAGAIN;
@@ -2374,9 +2374,9 @@ ice_set_link_ksettings(struct net_device *netdev,
 	}
 
 	/* Save speed request */
-	p->phy.curr_user_speed_req = adv_link_speed;
+	pi->phy.curr_user_speed_req = adv_link_speed;
 done:
-	kfree(abilities);
+	kfree(phy_caps);
 	clear_bit(__ICE_CFG_BUSY, pf->state);
 
 	return err;
-- 
GitLab


From 506d61bc1b50f2f5166d1bf7c2958e243e722c92 Mon Sep 17 00:00:00 2001
From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Date: Tue, 22 Feb 2022 11:43:04 +0000
Subject: [PATCH 4482/4878] ice: Fix curr_link_speed advertised speed

[ Upstream commit ad35ffa252af67d4cc7c744b9377a2b577748e3f ]

Change curr_link_speed advertised speed, due to
link_info.link_speed is not equal phy.curr_user_speed_req.
Without this patch it is impossible to set advertised
speed to same as link_speed.

Testing Hints: Try to set advertised speed
to 25G only with 25G default link (use ethtool -s 0x80000000)

Fixes: 48cb27f2fd18 ("ice: Implement handlers for ethtool PHY/link operations")
Signed-off-by: Grzegorz Siwik <grzegorz.siwik@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 0582fca5e07f0..421fc707f80af 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -2299,7 +2299,7 @@ ice_set_link_ksettings(struct net_device *netdev,
 		goto done;
 	}
 
-	curr_link_speed = pi->phy.link_info.link_speed;
+	curr_link_speed = pi->phy.curr_user_speed_req;
 	adv_link_speed = ice_ksettings_find_adv_link_speed(ks);
 
 	/* If speed didn't get set, set it to what it currently is.
-- 
GitLab


From 979b418b96e35f07136f77962ccfaa54cf3e30e1 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Tue, 8 Mar 2022 02:47:49 +0000
Subject: [PATCH 4483/4878] ethernet: Fix error handling in xemaclite_of_probe

[ Upstream commit b19ab4b38b06aae12442b2de95ccf58b5dc53584 ]

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function. Calling of_node_put() to avoid the
refcount leak. As the remove function do.

Fixes: 5cdaaa12866e ("net: emaclite: adding MDIO and phy lib support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220308024751.2320-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 962831cdde4db..4bd44fbc6ecfa 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1187,7 +1187,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 	if (rc) {
 		dev_err(dev,
 			"Cannot register network device, aborting\n");
-		goto error;
+		goto put_node;
 	}
 
 	dev_info(dev,
@@ -1195,6 +1195,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 		 (unsigned int __force)ndev->mem_start, lp->base_addr, ndev->irq);
 	return 0;
 
+put_node:
+	of_node_put(lp->phy_node);
 error:
 	free_netdev(ndev);
 	return rc;
-- 
GitLab


From 5e42f90d7220f1956767be16c620c28ffaa55369 Mon Sep 17 00:00:00 2001
From: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Date: Tue, 8 Mar 2022 02:11:59 +0000
Subject: [PATCH 4484/4878] tipc: fix incorrect order of state message data
 sanity check

[ Upstream commit c79fcc27be90b308b3fa90811aefafdd4078668c ]

When receiving a state message, function tipc_link_validate_msg()
is called to validate its header portion. Then, its data portion
is validated before it can be accessed correctly. However, current
data sanity  check is done after the message header is accessed to
update some link variables.

This commit fixes this issue by moving the data sanity check to
the beginning of state message handling and right after the header
sanity check.

Fixes: 9aa422ad3266 ("tipc: improve size validations for received domain records")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Link: https://lore.kernel.org/r/20220308021200.9245-1-tung.q.nguyen@dektech.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/link.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index fb835a3822f49..7a353ff628448 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2245,6 +2245,11 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 		break;
 
 	case STATE_MSG:
+		/* Validate Gap ACK blocks, drop if invalid */
+		glen = tipc_get_gap_ack_blks(&ga, l, hdr, true);
+		if (glen > dlen)
+			break;
+
 		l->rcv_nxt_state = msg_seqno(hdr) + 1;
 
 		/* Update own tolerance if peer indicates a non-zero value */
@@ -2270,10 +2275,6 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 			break;
 		}
 
-		/* Receive Gap ACK blocks from peer if any */
-		glen = tipc_get_gap_ack_blks(&ga, l, hdr, true);
-		if(glen > dlen)
-			break;
 		tipc_mon_rcv(l->net, data + glen, dlen - glen, l->addr,
 			     &l->mon_state, l->bearer_id);
 
-- 
GitLab


From b3e4fcb53921f397cebe2acc833e1372e1e40923 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 8 Mar 2022 14:40:07 +0800
Subject: [PATCH 4485/4878] net: ethernet: ti: cpts: Handle error for
 clk_enable

[ Upstream commit 6babfc6e6fab068018c36e8f6605184b8c0b349d ]

As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.

Fixes: 8a2c9a5ab4b9 ("net: ethernet: ti: cpts: rework initialization/deinitialization")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ti/cpts.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
index 43222a34cba06..f9514518700eb 100644
--- a/drivers/net/ethernet/ti/cpts.c
+++ b/drivers/net/ethernet/ti/cpts.c
@@ -568,7 +568,9 @@ int cpts_register(struct cpts *cpts)
 	for (i = 0; i < CPTS_MAX_EVENTS; i++)
 		list_add(&cpts->pool_data[i].list, &cpts->pool);
 
-	clk_enable(cpts->refclk);
+	err = clk_enable(cpts->refclk);
+	if (err)
+		return err;
 
 	cpts_write32(cpts, CPTS_EN, control);
 	cpts_write32(cpts, TS_PEND_EN, int_enable);
-- 
GitLab


From cc7679079c7e9f6e555f17d6600cee4c00398c04 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Date: Tue, 8 Mar 2022 14:57:39 +0800
Subject: [PATCH 4486/4878] net: ethernet: lpc_eth: Handle error for clk_enable

[ Upstream commit 2169b79258c8be803d2595d6456b1e77129fe154 ]

As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.

Fixes: b7370112f519 ("lpc32xx: Added ethernet driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/nxp/lpc_eth.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index 9e098e40fb1c6..a9a9bf2e065a5 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1468,6 +1468,7 @@ static int lpc_eth_drv_resume(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct netdata_local *pldat;
+	int ret;
 
 	if (device_may_wakeup(&pdev->dev))
 		disable_irq_wake(ndev->irq);
@@ -1477,7 +1478,9 @@ static int lpc_eth_drv_resume(struct platform_device *pdev)
 			pldat = netdev_priv(ndev);
 
 			/* Enable interface clock */
-			clk_enable(pldat->clk);
+			ret = clk_enable(pldat->clk);
+			if (ret)
+				return ret;
 
 			/* Reset and initialize */
 			__lpc_eth_reset(pldat);
-- 
GitLab


From e2201ef32f933944ee02e59205adb566bafcdf91 Mon Sep 17 00:00:00 2001
From: Duoming Zhou <duoming@zju.edu.cn>
Date: Tue, 8 Mar 2022 16:12:23 +0800
Subject: [PATCH 4487/4878] ax25: Fix NULL pointer dereference in
 ax25_kill_by_device

[ Upstream commit 71171ac8eb34ce7fe6b3267dce27c313ab3cb3ac ]

When two ax25 devices attempted to establish connection, the requester use ax25_create(),
ax25_bind() and ax25_connect() to initiate connection. The receiver use ax25_rcv() to
accept connection and use ax25_create_cb() in ax25_rcv() to create ax25_cb, but the
ax25_cb->sk is NULL. When the receiver is detaching, a NULL pointer dereference bug
caused by sock_hold(sk) in ax25_kill_by_device() will happen. The corresponding
fail log is shown below:

===============================================================
BUG: KASAN: null-ptr-deref in ax25_device_event+0xfd/0x290
Call Trace:
...
ax25_device_event+0xfd/0x290
raw_notifier_call_chain+0x5e/0x70
dev_close_many+0x174/0x220
unregister_netdevice_many+0x1f7/0xa60
unregister_netdevice_queue+0x12f/0x170
unregister_netdev+0x13/0x20
mkiss_close+0xcd/0x140
tty_ldisc_release+0xc0/0x220
tty_release_struct+0x17/0xa0
tty_release+0x62d/0x670
...

This patch add condition check in ax25_kill_by_device(). If s->sk is
NULL, it will goto if branch to kill device.

Fixes: 4e0f718daf97 ("ax25: improve the incomplete fix to avoid UAF and NPD bugs")
Reported-by: Thomas Osterried <thomas@osterried.de>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ax25/af_ax25.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 23bd26057a828..9e0eef7fe9add 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -87,6 +87,13 @@ again:
 	ax25_for_each(s, &ax25_list) {
 		if (s->ax25_dev == ax25_dev) {
 			sk = s->sk;
+			if (!sk) {
+				spin_unlock_bh(&ax25_list_lock);
+				s->ax25_dev = NULL;
+				ax25_disconnect(s, ENETUNREACH);
+				spin_lock_bh(&ax25_list_lock);
+				goto again;
+			}
 			sock_hold(sk);
 			spin_unlock_bh(&ax25_list_lock);
 			lock_sock(sk);
-- 
GitLab


From 5f1340963b11bb03a5b2fc5b9f577eeeabb0d71c Mon Sep 17 00:00:00 2001
From: Mohammad Kabat <mohammadkab@nvidia.com>
Date: Thu, 25 Mar 2021 14:38:55 +0200
Subject: [PATCH 4488/4878] net/mlx5: Fix size field in bufferx_reg struct

[ Upstream commit ac77998b7ac3044f0509b097da9637184598980d ]

According to HW spec the field "size" should be 16 bits
in bufferx register.

Fixes: e281682bf294 ("net/mlx5_core: HW data structs/types definitions cleanup")
Signed-off-by: Mohammad Kabat <mohammadkab@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/mlx5/mlx5_ifc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index f5e829e12a76d..eba1f1cbc9fbd 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -9307,8 +9307,8 @@ struct mlx5_ifc_bufferx_reg_bits {
 	u8         reserved_at_0[0x6];
 	u8         lossy[0x1];
 	u8         epsb[0x1];
-	u8         reserved_at_8[0xc];
-	u8         size[0xc];
+	u8         reserved_at_8[0x8];
+	u8         size[0x10];
 
 	u8         xoff_threshold[0x10];
 	u8         xon_threshold[0x10];
-- 
GitLab


From f3331bc17449f15832c31823f27573f4c0e13e5f Mon Sep 17 00:00:00 2001
From: Moshe Shemesh <moshe@nvidia.com>
Date: Fri, 4 Feb 2022 11:47:44 +0200
Subject: [PATCH 4489/4878] net/mlx5: Fix a race on command flush flow

[ Upstream commit 063bd355595428750803d8736a9bb7c8db67d42d ]

Fix a refcount use after free warning due to a race on command entry.
Such race occurs when one of the commands releases its last refcount and
frees its index and entry while another process running command flush
flow takes refcount to this command entry. The process which handles
commands flush may see this command as needed to be flushed if the other
process released its refcount but didn't release the index yet. Fix it
by adding the needed spin lock.

It fixes the following warning trace:

refcount_t: addition on 0; use-after-free.
WARNING: CPU: 11 PID: 540311 at lib/refcount.c:25 refcount_warn_saturate+0x80/0xe0
...
RIP: 0010:refcount_warn_saturate+0x80/0xe0
...
Call Trace:
 <TASK>
 mlx5_cmd_trigger_completions+0x293/0x340 [mlx5_core]
 mlx5_cmd_flush+0x3a/0xf0 [mlx5_core]
 enter_error_state+0x44/0x80 [mlx5_core]
 mlx5_fw_fatal_reporter_err_work+0x37/0xe0 [mlx5_core]
 process_one_work+0x1be/0x390
 worker_thread+0x4d/0x3d0
 ? rescuer_thread+0x350/0x350
 kthread+0x141/0x160
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x1f/0x30
 </TASK>

Fixes: 50b2412b7e78 ("net/mlx5: Avoid possible free of command entry while timeout comp handler")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 6af0dd8471691..94426d29025eb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -130,11 +130,8 @@ static int cmd_alloc_index(struct mlx5_cmd *cmd)
 
 static void cmd_free_index(struct mlx5_cmd *cmd, int idx)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&cmd->alloc_lock, flags);
+	lockdep_assert_held(&cmd->alloc_lock);
 	set_bit(idx, &cmd->bitmask);
-	spin_unlock_irqrestore(&cmd->alloc_lock, flags);
 }
 
 static void cmd_ent_get(struct mlx5_cmd_work_ent *ent)
@@ -144,17 +141,21 @@ static void cmd_ent_get(struct mlx5_cmd_work_ent *ent)
 
 static void cmd_ent_put(struct mlx5_cmd_work_ent *ent)
 {
+	struct mlx5_cmd *cmd = ent->cmd;
+	unsigned long flags;
+
+	spin_lock_irqsave(&cmd->alloc_lock, flags);
 	if (!refcount_dec_and_test(&ent->refcnt))
-		return;
+		goto out;
 
 	if (ent->idx >= 0) {
-		struct mlx5_cmd *cmd = ent->cmd;
-
 		cmd_free_index(cmd, ent->idx);
 		up(ent->page_queue ? &cmd->pages_sem : &cmd->sem);
 	}
 
 	cmd_free_ent(ent);
+out:
+	spin_unlock_irqrestore(&cmd->alloc_lock, flags);
 }
 
 static struct mlx5_cmd_layout *get_inst(struct mlx5_cmd *cmd, int idx)
-- 
GitLab


From 1fdabf2cf42b401c2525dc0420bc9bbe45a7e1f2 Mon Sep 17 00:00:00 2001
From: Roi Dayan <roid@nvidia.com>
Date: Wed, 16 Feb 2022 13:56:57 +0200
Subject: [PATCH 4490/4878] net/mlx5e: Lag, Only handle events from highest
 priority multipath entry

[ Upstream commit ad11c4f1d8fd1f03639460e425a36f7fd0ea83f5 ]

There could be multiple multipath entries but changing the port affinity
for each one doesn't make much sense and there should be a default one.
So only track the entry with lowest priority value.
The commit doesn't affect existing users with a single entry.

Fixes: 544fe7c2e654 ("net/mlx5e: Activate HW multipath and handle port affinity based on FIB events")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Maor Dickman <maord@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
index 0f0d250bbc150..c04413f449c50 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag_mp.c
@@ -123,6 +123,10 @@ static void mlx5_lag_fib_route_event(struct mlx5_lag *ldev,
 		return;
 	}
 
+	/* Handle multipath entry with lower priority value */
+	if (mp->mfi && mp->mfi != fi && fi->fib_priority >= mp->mfi->fib_priority)
+		return;
+
 	/* Handle add/replace event */
 	nhs = fib_info_num_path(fi);
 	if (nhs == 1) {
@@ -132,12 +136,13 @@ static void mlx5_lag_fib_route_event(struct mlx5_lag *ldev,
 			int i = mlx5_lag_dev_get_netdev_idx(ldev, nh_dev);
 
 			if (i < 0)
-				i = MLX5_LAG_NORMAL_AFFINITY;
-			else
-				++i;
+				return;
 
+			i++;
 			mlx5_lag_set_port_affinity(ldev, i);
 		}
+
+		mp->mfi = fi;
 		return;
 	}
 
-- 
GitLab


From 2b1c85f56512d49e43bc53741fce2f508cd90029 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Tue, 8 Mar 2022 21:50:07 +0300
Subject: [PATCH 4491/4878] NFC: port100: fix use-after-free in
 port100_send_complete

[ Upstream commit f80cfe2f26581f188429c12bd937eb905ad3ac7b ]

Syzbot reported UAF in port100_send_complete(). The root case is in
missing usb_kill_urb() calls on error handling path of ->probe function.

port100_send_complete() accesses devm allocated memory which will be
freed on probe failure. We should kill this urbs before returning an
error from probe function to prevent reported use-after-free

Fail log:

BUG: KASAN: use-after-free in port100_send_complete+0x16e/0x1a0 drivers/nfc/port100.c:935
Read of size 1 at addr ffff88801bb59540 by task ksoftirqd/2/26
...
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x8d/0x303 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
 port100_send_complete+0x16e/0x1a0 drivers/nfc/port100.c:935
 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1670

...

Allocated by task 1255:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:436 [inline]
 ____kasan_kmalloc mm/kasan/common.c:515 [inline]
 ____kasan_kmalloc mm/kasan/common.c:474 [inline]
 __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524
 alloc_dr drivers/base/devres.c:116 [inline]
 devm_kmalloc+0x96/0x1d0 drivers/base/devres.c:823
 devm_kzalloc include/linux/device.h:209 [inline]
 port100_probe+0x8a/0x1320 drivers/nfc/port100.c:1502

Freed by task 1255:
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:45
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:366 [inline]
 ____kasan_slab_free+0xff/0x140 mm/kasan/common.c:328
 kasan_slab_free include/linux/kasan.h:236 [inline]
 __cache_free mm/slab.c:3437 [inline]
 kfree+0xf8/0x2b0 mm/slab.c:3794
 release_nodes+0x112/0x1a0 drivers/base/devres.c:501
 devres_release_all+0x114/0x190 drivers/base/devres.c:530
 really_probe+0x626/0xcc0 drivers/base/dd.c:670

Reported-and-tested-by: syzbot+16bcb127fb73baeecb14@syzkaller.appspotmail.com
Fixes: 0347a6ab300a ("NFC: port100: Commands mechanism implementation")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220308185007.6987-1-paskripkin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nfc/port100.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 1caebefb25ff1..2ae1474faede9 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -1609,7 +1609,9 @@ free_nfc_dev:
 	nfc_digital_free_device(dev->nfc_digital_dev);
 
 error:
+	usb_kill_urb(dev->in_urb);
 	usb_free_urb(dev->in_urb);
+	usb_kill_urb(dev->out_urb);
 	usb_free_urb(dev->out_urb);
 	usb_put_dev(dev->udev);
 
-- 
GitLab


From 7702e7e9e396bbd1dfb1b8a5e04a9d6134991aa8 Mon Sep 17 00:00:00 2001
From: Guillaume Nault <gnault@redhat.com>
Date: Tue, 8 Mar 2022 23:15:00 +0100
Subject: [PATCH 4492/4878] selftests: pmtu.sh: Kill tcpdump processes launched
 by subshell.

[ Upstream commit 18dfc667550fe9c032a6dcc3402b50e691e18029 ]

The cleanup() function takes care of killing processes launched by the
test functions. It relies on variables like ${tcpdump_pids} to get the
relevant PIDs. But tests are run in their own subshell, so updated
*_pids values are invisible to other shells. Therefore cleanup() never
sees any process to kill:

$ ./tools/testing/selftests/net/pmtu.sh -t pmtu_ipv4_exception
TEST: ipv4: PMTU exceptions                                         [ OK ]
TEST: ipv4: PMTU exceptions - nexthop objects                       [ OK ]

$ pgrep -af tcpdump
6084 tcpdump -s 0 -i veth_A-R1 -w pmtu_ipv4_exception_veth_A-R1.pcap
6085 tcpdump -s 0 -i veth_R1-A -w pmtu_ipv4_exception_veth_R1-A.pcap
6086 tcpdump -s 0 -i veth_R1-B -w pmtu_ipv4_exception_veth_R1-B.pcap
6087 tcpdump -s 0 -i veth_B-R1 -w pmtu_ipv4_exception_veth_B-R1.pcap
6088 tcpdump -s 0 -i veth_A-R2 -w pmtu_ipv4_exception_veth_A-R2.pcap
6089 tcpdump -s 0 -i veth_R2-A -w pmtu_ipv4_exception_veth_R2-A.pcap
6090 tcpdump -s 0 -i veth_R2-B -w pmtu_ipv4_exception_veth_R2-B.pcap
6091 tcpdump -s 0 -i veth_B-R2 -w pmtu_ipv4_exception_veth_B-R2.pcap
6228 tcpdump -s 0 -i veth_A-R1 -w pmtu_ipv4_exception_veth_A-R1.pcap
6229 tcpdump -s 0 -i veth_R1-A -w pmtu_ipv4_exception_veth_R1-A.pcap
6230 tcpdump -s 0 -i veth_R1-B -w pmtu_ipv4_exception_veth_R1-B.pcap
6231 tcpdump -s 0 -i veth_B-R1 -w pmtu_ipv4_exception_veth_B-R1.pcap
6232 tcpdump -s 0 -i veth_A-R2 -w pmtu_ipv4_exception_veth_A-R2.pcap
6233 tcpdump -s 0 -i veth_R2-A -w pmtu_ipv4_exception_veth_R2-A.pcap
6234 tcpdump -s 0 -i veth_R2-B -w pmtu_ipv4_exception_veth_R2-B.pcap
6235 tcpdump -s 0 -i veth_B-R2 -w pmtu_ipv4_exception_veth_B-R2.pcap

Fix this by running cleanup() in the context of the test subshell.
Now that each test cleans the environment after completion, there's no
need for calling cleanup() again when the next test starts. So let's
drop it from the setup() function. This is okay because cleanup() is
also called when pmtu.sh starts, so even the first test starts in a
clean environment.

Also, use tcpdump's immediate mode. Otherwise it might not have time to
process buffered packets, resulting in missing packets or even empty
pcap files for short tests.

Note: PAUSE_ON_FAIL is still evaluated before cleanup(), so one can
still inspect the test environment upon failure when using -p.

Fixes: a92a0a7b8e7c ("selftests: pmtu: Simplify cleanup and namespace names")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/pmtu.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index 3367fb5f2feff..3253fdc780d62 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -799,7 +799,6 @@ setup_ovs_bridge() {
 setup() {
 	[ "$(id -u)" -ne 0 ] && echo "  need to run as root" && return $ksft_skip
 
-	cleanup
 	for arg do
 		eval setup_${arg} || { echo "  ${arg} not supported"; return 1; }
 	done
@@ -810,7 +809,7 @@ trace() {
 
 	for arg do
 		[ "${ns_cmd}" = "" ] && ns_cmd="${arg}" && continue
-		${ns_cmd} tcpdump -s 0 -i "${arg}" -w "${name}_${arg}.pcap" 2> /dev/null &
+		${ns_cmd} tcpdump --immediate-mode -s 0 -i "${arg}" -w "${name}_${arg}.pcap" 2> /dev/null &
 		tcpdump_pids="${tcpdump_pids} $!"
 		ns_cmd=
 	done
@@ -1636,6 +1635,10 @@ run_test() {
 
 	unset IFS
 
+	# Since cleanup() relies on variables modified by this subshell, it
+	# has to run in this context.
+	trap cleanup EXIT
+
 	if [ "$VERBOSE" = "1" ]; then
 		printf "\n##########################################################################\n\n"
 	fi
-- 
GitLab


From 3a4cd1c51eea2e24d5ca5a312509138629c06171 Mon Sep 17 00:00:00 2001
From: Mark Featherston <mark@embeddedTS.com>
Date: Wed, 9 Mar 2022 17:16:16 -0800
Subject: [PATCH 4493/4878] gpio: ts4900: Do not set DAT and OE together

[ Upstream commit 03fe003547975680fdb9ff5ab0e41cb68276c4f2 ]

This works around an issue with the hardware where both OE and
DAT are exposed in the same register. If both are updated
simultaneously, the harware makes no guarantees that OE or DAT
will actually change in any given order and may result in a
glitch of a few ns on a GPIO pin when changing direction and value
in a single write.

Setting direction to input now only affects OE bit. Setting
direction to output updates DAT first, then OE.

Fixes: 9c6686322d74 ("gpio: add Technologic I2C-FPGA gpio support")
Signed-off-by: Mark Featherston <mark@embeddedTS.com>
Signed-off-by: Kris Bahnsen <kris@embeddedTS.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-ts4900.c | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-ts4900.c b/drivers/gpio/gpio-ts4900.c
index d885032cf814d..d918d2df4de2c 100644
--- a/drivers/gpio/gpio-ts4900.c
+++ b/drivers/gpio/gpio-ts4900.c
@@ -1,7 +1,7 @@
 /*
  * Digital I/O driver for Technologic Systems I2C FPGA Core
  *
- * Copyright (C) 2015 Technologic Systems
+ * Copyright (C) 2015, 2018 Technologic Systems
  * Copyright (C) 2016 Savoir-Faire Linux
  *
  * This program is free software; you can redistribute it and/or
@@ -55,19 +55,33 @@ static int ts4900_gpio_direction_input(struct gpio_chip *chip,
 {
 	struct ts4900_gpio_priv *priv = gpiochip_get_data(chip);
 
-	/*
-	 * This will clear the output enable bit, the other bits are
-	 * dontcare when this is cleared
+	/* Only clear the OE bit here, requires a RMW. Prevents potential issue
+	 * with OE and data getting to the physical pin at different times.
 	 */
-	return regmap_write(priv->regmap, offset, 0);
+	return regmap_update_bits(priv->regmap, offset, TS4900_GPIO_OE, 0);
 }
 
 static int ts4900_gpio_direction_output(struct gpio_chip *chip,
 					unsigned int offset, int value)
 {
 	struct ts4900_gpio_priv *priv = gpiochip_get_data(chip);
+	unsigned int reg;
 	int ret;
 
+	/* If changing from an input to an output, we need to first set the
+	 * proper data bit to what is requested and then set OE bit. This
+	 * prevents a glitch that can occur on the IO line
+	 */
+	regmap_read(priv->regmap, offset, &reg);
+	if (!(reg & TS4900_GPIO_OE)) {
+		if (value)
+			reg = TS4900_GPIO_OUT;
+		else
+			reg &= ~TS4900_GPIO_OUT;
+
+		regmap_write(priv->regmap, offset, reg);
+	}
+
 	if (value)
 		ret = regmap_write(priv->regmap, offset, TS4900_GPIO_OE |
 							 TS4900_GPIO_OUT);
-- 
GitLab


From 21044e679ed535345042d2023f7df0ca8e897e2a Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Thu, 10 Mar 2022 01:53:13 +0000
Subject: [PATCH 4494/4878] gianfar: ethtool: Fix refcount leak in
 gfar_get_ts_info

[ Upstream commit 2ac5b58e645c66932438bb021cb5b52097ce70b0 ]

The of_find_compatible_node() function returns a node pointer with
refcount incremented, We should use of_node_put() on it when done
Add the missing of_node_put() to release the refcount.

Fixes: 7349a74ea75c ("net: ethernet: gianfar_ethtool: get phc index through drvdata")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20220310015313.14938-1-linmq006@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/gianfar_ethtool.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/freescale/gianfar_ethtool.c b/drivers/net/ethernet/freescale/gianfar_ethtool.c
index cc7d4f93da540..799a1486f586d 100644
--- a/drivers/net/ethernet/freescale/gianfar_ethtool.c
+++ b/drivers/net/ethernet/freescale/gianfar_ethtool.c
@@ -1456,6 +1456,7 @@ static int gfar_get_ts_info(struct net_device *dev,
 	ptp_node = of_find_compatible_node(NULL, NULL, "fsl,etsec-ptp");
 	if (ptp_node) {
 		ptp_dev = of_find_device_by_node(ptp_node);
+		of_node_put(ptp_node);
 		if (ptp_dev)
 			ptp = platform_get_drvdata(ptp_dev);
 	}
-- 
GitLab


From 3cf533f1200195fcc3bc4d7b4cfc76a8724c506c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= <clement.leger@bootlin.com>
Date: Wed, 9 Mar 2022 15:22:28 +0100
Subject: [PATCH 4495/4878] net: phy: DP83822: clear MISR2 register to disable
 interrupts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 37c9d66c95564c85a001d8a035354f0220a1e1c3 ]

MISR1 was cleared twice but the original author intention was probably
to clear MISR1 & MISR2 to completely disable interrupts. Fix it to
clear MISR2.

Fixes: 87461f7a58ab ("net: phy: DP83822 initial driver submission")
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220309142228.761153-1-clement.leger@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/dp83822.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/dp83822.c b/drivers/net/phy/dp83822.c
index 7bf43031cea8c..3d75b98f3051d 100644
--- a/drivers/net/phy/dp83822.c
+++ b/drivers/net/phy/dp83822.c
@@ -289,7 +289,7 @@ static int dp83822_config_intr(struct phy_device *phydev)
 		if (err < 0)
 			return err;
 
-		err = phy_write(phydev, MII_DP83822_MISR1, 0);
+		err = phy_write(phydev, MII_DP83822_MISR2, 0);
 		if (err < 0)
 			return err;
 
-- 
GitLab


From b7e4d9ba2ddb78801488b4c623875b81fb46b545 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 9 Mar 2022 16:11:45 -0800
Subject: [PATCH 4496/4878] sctp: fix kernel-infoleak for SCTP sockets

[ Upstream commit 633593a808980f82d251d0ca89730d8bb8b0220c ]

syzbot reported a kernel infoleak [1] of 4 bytes.

After analysis, it turned out r->idiag_expires is not initialized
if inet_sctp_diag_fill() calls inet_diag_msg_common_fill()

Make sure to clear idiag_timer/idiag_retrans/idiag_expires
and let inet_diag_msg_sctpasoc_fill() fill them again if needed.

[1]

BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]
BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:154 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668
 instrument_copy_to_user include/linux/instrumented.h:121 [inline]
 copyout lib/iov_iter.c:154 [inline]
 _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668
 copy_to_iter include/linux/uio.h:162 [inline]
 simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519
 __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425
 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533
 skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline]
 netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977
 sock_recvmsg_nosec net/socket.c:948 [inline]
 sock_recvmsg net/socket.c:966 [inline]
 __sys_recvfrom+0x795/0xa10 net/socket.c:2097
 __do_sys_recvfrom net/socket.c:2115 [inline]
 __se_sys_recvfrom net/socket.c:2111 [inline]
 __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3247 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1158 [inline]
 netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248
 __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373
 netlink_dump_start include/linux/netlink.h:254 [inline]
 inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341
 sock_diag_rcv_msg+0x24a/0x620
 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494
 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg net/socket.c:725 [inline]
 sock_write_iter+0x594/0x690 net/socket.c:1061
 do_iter_readv_writev+0xa7f/0xc70
 do_iter_write+0x52c/0x1500 fs/read_write.c:851
 vfs_writev fs/read_write.c:924 [inline]
 do_writev+0x645/0xe00 fs/read_write.c:967
 __do_sys_writev fs/read_write.c:1040 [inline]
 __se_sys_writev fs/read_write.c:1037 [inline]
 __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Bytes 68-71 of 2508 are uninitialized
Memory access of size 2508 starts at ffff888114f9b000
Data copied to user address 00007f7fe09ff2e0

CPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Fixes: 8f840e47f190 ("sctp: add the sctp_diag.c file")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Vlad Yasevich <vyasevich@gmail.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20220310001145.297371-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sctp/diag.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/net/sctp/diag.c b/net/sctp/diag.c
index babadd6720a2b..68ff82ff49a3d 100644
--- a/net/sctp/diag.c
+++ b/net/sctp/diag.c
@@ -61,10 +61,6 @@ static void inet_diag_msg_sctpasoc_fill(struct inet_diag_msg *r,
 		r->idiag_timer = SCTP_EVENT_TIMEOUT_T3_RTX;
 		r->idiag_retrans = asoc->rtx_data_chunks;
 		r->idiag_expires = jiffies_to_msecs(t3_rtx->expires - jiffies);
-	} else {
-		r->idiag_timer = 0;
-		r->idiag_retrans = 0;
-		r->idiag_expires = 0;
 	}
 }
 
@@ -144,13 +140,14 @@ static int inet_sctp_diag_fill(struct sock *sk, struct sctp_association *asoc,
 	r = nlmsg_data(nlh);
 	BUG_ON(!sk_fullsock(sk));
 
+	r->idiag_timer = 0;
+	r->idiag_retrans = 0;
+	r->idiag_expires = 0;
 	if (asoc) {
 		inet_diag_msg_sctpasoc_fill(r, sk, asoc);
 	} else {
 		inet_diag_msg_common_fill(r, sk);
 		r->idiag_state = sk->sk_state;
-		r->idiag_timer = 0;
-		r->idiag_retrans = 0;
 	}
 
 	if (inet_diag_msg_attrs_fill(sk, skb, r, ext, user_ns, net_admin))
-- 
GitLab


From dc1c2b47b539b17fd7144513d6e23f00477dcb11 Mon Sep 17 00:00:00 2001
From: Jeremy Linton <jeremy.linton@arm.com>
Date: Wed, 9 Mar 2022 22:55:35 -0600
Subject: [PATCH 4497/4878] net: bcmgenet: Don't claim WOL when its not
 available

[ Upstream commit 00b022f8f876a3a036b0df7f971001bef6398605 ]

Some of the bcmgenet platforms don't correctly support WOL, yet
ethtool returns:

"Supports Wake-on: gsf"

which is false.

Ideally if there isn't a wol_irq, or there is something else that
keeps the device from being able to wakeup it should display:

"Supports Wake-on: d"

This patch checks whether the device can wakup, before using the
hard-coded supported flags. This corrects the ethtool reporting, as
well as the WOL configuration because ethtool verifies that the mode
is supported before attempting it.

Fixes: c51de7f3976b ("net: bcmgenet: add Wake-on-LAN support code")
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220310045535.224450-1-jeremy.linton@arm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
index e84ad587fb214..2c2a56d5a0a1a 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
@@ -41,6 +41,13 @@
 void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
+	struct device *kdev = &priv->pdev->dev;
+
+	if (!device_can_wakeup(kdev)) {
+		wol->supported = 0;
+		wol->wolopts = 0;
+		return;
+	}
 
 	wol->supported = WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_FILTER;
 	wol->wolopts = priv->wolopts;
-- 
GitLab


From 4fb9be675be8360bede6fb8f0cad7948393fbef8 Mon Sep 17 00:00:00 2001
From: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Date: Wed, 9 Feb 2022 12:33:24 +0530
Subject: [PATCH 4498/4878] selftests/bpf: Add test for bpf_timer overwriting
 crash

[ Upstream commit a7e75016a0753c24d6c995bc02501ae35368e333 ]

Add a test that validates that timer value is not overwritten when doing
a copy_map_value call in the kernel. Without the prior fix, this test
triggers a crash.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220209070324.1093182-3-memxor@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/bpf/prog_tests/timer_crash.c    | 32 +++++++++++
 .../testing/selftests/bpf/progs/timer_crash.c | 54 +++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/timer_crash.c
 create mode 100644 tools/testing/selftests/bpf/progs/timer_crash.c

diff --git a/tools/testing/selftests/bpf/prog_tests/timer_crash.c b/tools/testing/selftests/bpf/prog_tests/timer_crash.c
new file mode 100644
index 0000000000000..f74b82305da8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/timer_crash.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "timer_crash.skel.h"
+
+enum {
+	MODE_ARRAY,
+	MODE_HASH,
+};
+
+static void test_timer_crash_mode(int mode)
+{
+	struct timer_crash *skel;
+
+	skel = timer_crash__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "timer_crash__open_and_load"))
+		return;
+	skel->bss->pid = getpid();
+	skel->bss->crash_map = mode;
+	if (!ASSERT_OK(timer_crash__attach(skel), "timer_crash__attach"))
+		goto end;
+	usleep(1);
+end:
+	timer_crash__destroy(skel);
+}
+
+void test_timer_crash(void)
+{
+	if (test__start_subtest("array"))
+		test_timer_crash_mode(MODE_ARRAY);
+	if (test__start_subtest("hash"))
+		test_timer_crash_mode(MODE_HASH);
+}
diff --git a/tools/testing/selftests/bpf/progs/timer_crash.c b/tools/testing/selftests/bpf/progs/timer_crash.c
new file mode 100644
index 0000000000000..f8f7944e70dae
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_crash.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct map_elem {
+	struct bpf_timer timer;
+	struct bpf_spin_lock lock;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct map_elem);
+} amap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct map_elem);
+} hmap SEC(".maps");
+
+int pid = 0;
+int crash_map = 0; /* 0 for amap, 1 for hmap */
+
+SEC("fentry/do_nanosleep")
+int sys_enter(void *ctx)
+{
+	struct map_elem *e, value = {};
+	void *map = crash_map ? (void *)&hmap : (void *)&amap;
+
+	if (bpf_get_current_task_btf()->tgid != pid)
+		return 0;
+
+	*(void **)&value = (void *)0xdeadcaf3;
+
+	bpf_map_update_elem(map, &(int){0}, &value, 0);
+	/* For array map, doing bpf_map_update_elem will do a
+	 * check_and_free_timer_in_array, which will trigger the crash if timer
+	 * pointer was overwritten, for hmap we need to use bpf_timer_cancel.
+	 */
+	if (crash_map == 1) {
+		e = bpf_map_lookup_elem(map, &(int){0});
+		if (!e)
+			return 0;
+		bpf_timer_cancel(&e->timer);
+	}
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
-- 
GitLab


From 889254f98e99f824abc76c8fcac5652e140255c3 Mon Sep 17 00:00:00 2001
From: Jon Lin <jon.lin@rock-chips.com>
Date: Wed, 16 Feb 2022 09:40:23 +0800
Subject: [PATCH 4499/4878] spi: rockchip: Fix error in getting num-cs property

[ Upstream commit 9382df0a98aad5bbcd4d634790305a1d786ad224 ]

Get num-cs u32 from dts of_node property rather than u16.

Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20220216014028.8123-2-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-rockchip.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 624273d0e727f..a594310754111 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -636,7 +636,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 	struct spi_controller *ctlr;
 	struct resource *mem;
 	struct device_node *np = pdev->dev.of_node;
-	u32 rsd_nsecs;
+	u32 rsd_nsecs, num_cs;
 	bool slave_mode;
 
 	slave_mode = of_property_read_bool(np, "spi-slave");
@@ -744,8 +744,9 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 		 * rk spi0 has two native cs, spi1..5 one cs only
 		 * if num-cs is missing in the dts, default to 1
 		 */
-		if (of_property_read_u16(np, "num-cs", &ctlr->num_chipselect))
-			ctlr->num_chipselect = 1;
+		if (of_property_read_u32(np, "num-cs", &num_cs))
+			num_cs = 1;
+		ctlr->num_chipselect = num_cs;
 		ctlr->use_gpio_descriptors = true;
 	}
 	ctlr->dev.of_node = pdev->dev.of_node;
-- 
GitLab


From 8c023c303978ca1aefe3994630af9b9fd76f18aa Mon Sep 17 00:00:00 2001
From: Jon Lin <jon.lin@rock-chips.com>
Date: Wed, 16 Feb 2022 09:40:24 +0800
Subject: [PATCH 4500/4878] spi: rockchip: terminate dma transmission when
 slave abort

[ Upstream commit 80808768e41324d2e23de89972b5406c1020e6e4 ]

After slave abort, all DMA should be stopped, or it will affect the
next transmission and maybe abort again.

Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20220216014028.8123-3-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-rockchip.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index a594310754111..a9f97023d5a00 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -567,6 +567,12 @@ static int rockchip_spi_slave_abort(struct spi_controller *ctlr)
 {
 	struct rockchip_spi *rs = spi_controller_get_devdata(ctlr);
 
+	if (atomic_read(&rs->state) & RXDMA)
+		dmaengine_terminate_sync(ctlr->dma_rx);
+	if (atomic_read(&rs->state) & TXDMA)
+		dmaengine_terminate_sync(ctlr->dma_tx);
+	atomic_set(&rs->state, 0);
+	spi_enable_chip(rs, false);
 	rs->slave_abort = true;
 	complete(&ctlr->xfer_completion);
 
-- 
GitLab


From d15c9f6e3335002fea1c33bc8f71a705fa96976c Mon Sep 17 00:00:00 2001
From: suresh kumar <suresh2514@gmail.com>
Date: Thu, 17 Feb 2022 07:25:18 +0530
Subject: [PATCH 4501/4878] net-sysfs: add check for netdevice being present to
 speed_show

[ Upstream commit 4224cfd7fb6523f7a9d1c8bb91bb5df1e38eb624 ]

When bringing down the netdevice or system shutdown, a panic can be
triggered while accessing the sysfs path because the device is already
removed.

    [  755.549084] mlx5_core 0000:12:00.1: Shutdown was called
    [  756.404455] mlx5_core 0000:12:00.0: Shutdown was called
    ...
    [  757.937260] BUG: unable to handle kernel NULL pointer dereference at           (null)
    [  758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280

    crash> bt
    ...
    PID: 12649  TASK: ffff8924108f2100  CPU: 1   COMMAND: "amsd"
    ...
     #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778
        [exception RIP: dma_pool_alloc+0x1ab]
        RIP: ffffffff8ee11acb  RSP: ffff89240e1a3968  RFLAGS: 00010046
        RAX: 0000000000000246  RBX: ffff89243d874100  RCX: 0000000000001000
        RDX: 0000000000000000  RSI: 0000000000000246  RDI: ffff89243d874090
        RBP: ffff89240e1a39c0   R8: 000000000001f080   R9: ffff8905ffc03c00
        R10: ffffffffc04680d4  R11: ffffffff8edde9fd  R12: 00000000000080d0
        R13: ffff89243d874090  R14: ffff89243d874080  R15: 0000000000000000
        ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
    #10 [ffff89240e1a39c8] mlx5_alloc_cmd_msg at ffffffffc04680f3 [mlx5_core]
    #11 [ffff89240e1a3a18] cmd_exec at ffffffffc046ad62 [mlx5_core]
    #12 [ffff89240e1a3ab8] mlx5_cmd_exec at ffffffffc046b4fb [mlx5_core]
    #13 [ffff89240e1a3ae8] mlx5_core_access_reg at ffffffffc0475434 [mlx5_core]
    #14 [ffff89240e1a3b40] mlx5e_get_fec_caps at ffffffffc04a7348 [mlx5_core]
    #15 [ffff89240e1a3bb0] get_fec_supported_advertised at ffffffffc04992bf [mlx5_core]
    #16 [ffff89240e1a3c08] mlx5e_get_link_ksettings at ffffffffc049ab36 [mlx5_core]
    #17 [ffff89240e1a3ce8] __ethtool_get_link_ksettings at ffffffff8f25db46
    #18 [ffff89240e1a3d48] speed_show at ffffffff8f277208
    #19 [ffff89240e1a3dd8] dev_attr_show at ffffffff8f0b70e3
    #20 [ffff89240e1a3df8] sysfs_kf_seq_show at ffffffff8eedbedf
    #21 [ffff89240e1a3e18] kernfs_seq_show at ffffffff8eeda596
    #22 [ffff89240e1a3e28] seq_read at ffffffff8ee76d10
    #23 [ffff89240e1a3e98] kernfs_fop_read at ffffffff8eedaef5
    #24 [ffff89240e1a3ed8] vfs_read at ffffffff8ee4e3ff
    #25 [ffff89240e1a3f08] sys_read at ffffffff8ee4f27f
    #26 [ffff89240e1a3f50] system_call_fastpath at ffffffff8f395f92

    crash> net_device.state ffff89443b0c0000
      state = 0x5  (__LINK_STATE_START| __LINK_STATE_NOCARRIER)

To prevent this scenario, we also make sure that the netdevice is present.

Signed-off-by: suresh kumar <suresh2514@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/net-sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 99303897b7bb7..989b3f7ee85f4 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -213,7 +213,7 @@ static ssize_t speed_show(struct device *dev,
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	if (netif_running(netdev)) {
+	if (netif_running(netdev) && netif_device_present(netdev)) {
 		struct ethtool_link_ksettings cmd;
 
 		if (!__ethtool_get_link_ksettings(netdev, &cmd))
-- 
GitLab


From 65d4e9d130fb3c05b3fad61f35572966083fefdb Mon Sep 17 00:00:00 2001
From: Vikash Chandola <vikash.chandola@linux.intel.com>
Date: Tue, 22 Feb 2022 13:12:53 +0000
Subject: [PATCH 4502/4878] hwmon: (pmbus) Clear pmbus fault/warning bits after
 read

[ Upstream commit 35f165f08950a876f1b95a61d79c93678fba2fd6 ]

Almost all fault/warning bits in pmbus status registers remain set even
after fault/warning condition are removed. As per pmbus specification
these faults must be cleared by user.
Modify hwmon behavior to clear fault/warning bit after fetching data if
fault/warning bit was set. This allows to get fresh data in next read.

Signed-off-by: Vikash Chandola <vikash.chandola@linux.intel.com>
Link: https://lore.kernel.org/r/20220222131253.2426834-1-vikash.chandola@linux.intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pmbus/pmbus_core.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index b0e2820a2d578..71798fde2ef0c 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -898,6 +898,11 @@ static int pmbus_get_boolean(struct i2c_client *client, struct pmbus_boolean *b,
 		pmbus_update_sensor_data(client, s2);
 
 	regval = status & mask;
+	if (regval) {
+		ret = pmbus_write_byte_data(client, page, reg, regval);
+		if (ret)
+			goto unlock;
+	}
 	if (s1 && s2) {
 		s64 v1, v2;
 
-- 
GitLab


From a0e2768fb901093eff7d4cad1603659ae38a2449 Mon Sep 17 00:00:00 2001
From: Shreeya Patel <shreeya.patel@collabora.com>
Date: Thu, 17 Feb 2022 01:56:55 +0530
Subject: [PATCH 4503/4878] gpio: Return EPROBE_DEFER if gc->to_irq is NULL

[ Upstream commit ae42f9288846353982e2eab181fb41e7fd8bf60f ]

We are racing the registering of .to_irq when probing the
i2c driver. This results in random failure of touchscreen
devices.

Following explains the race condition better.

[gpio driver] gpio driver registers gpio chip
[gpio consumer] gpio is acquired
[gpio consumer] gpiod_to_irq() fails with -ENXIO
[gpio driver] gpio driver registers irqchip
gpiod_to_irq works at this point, but -ENXIO is fatal

We could see the following errors in dmesg logs when gc->to_irq is NULL

[2.101857] i2c_hid i2c-FTS3528:00: HID over i2c has not been provided an Int IRQ
[2.101953] i2c_hid: probe of i2c-FTS3528:00 failed with error -22

To avoid this situation, defer probing until to_irq is registered.
Returning -EPROBE_DEFER would be the first step towards avoiding
the failure of devices due to the race in registration of .to_irq.
Final solution to this issue would be to avoid using gc irq members
until they are fully initialized.

This issue has been reported many times in past and people have been
using workarounds like changing the pinctrl_amd to built-in instead
of loading it as a module or by adding a softdep for pinctrl_amd into
the config file.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209413
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpiolib.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index af5bb8fedfea7..00526fdd7691f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -3215,6 +3215,16 @@ int gpiod_to_irq(const struct gpio_desc *desc)
 
 		return retirq;
 	}
+#ifdef CONFIG_GPIOLIB_IRQCHIP
+	if (gc->irq.chip) {
+		/*
+		 * Avoid race condition with other code, which tries to lookup
+		 * an IRQ before the irqchip has been properly registered,
+		 * i.e. while gpiochip is still being brought up.
+		 */
+		return -EPROBE_DEFER;
+	}
+#endif
 	return -ENXIO;
 }
 EXPORT_SYMBOL_GPL(gpiod_to_irq);
-- 
GitLab


From 625c04b523ca5a3a5fb8f4ec68977fee111beafe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Tue, 22 Feb 2022 01:18:16 +0100
Subject: [PATCH 4504/4878] Revert "xen-netback: remove 'hotplug-status' once
 it has served its purpose"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 0f4558ae91870692ce7f509c31c9d6ee721d8cdc ]

This reverts commit 1f2565780e9b7218cf92c7630130e82dcc0fe9c2.

The 'hotplug-status' node should not be removed as long as the vif
device remains configured. Otherwise the xen-netback would wait for
re-running the network script even if it was already called (in case of
the frontent re-connecting). But also, it _should_ be removed when the
vif device is destroyed (for example when unbinding the driver) -
otherwise hotplug script would not configure the device whenever it
re-appear.

Moving removal of the 'hotplug-status' node was a workaround for nothing
calling network script after xen-netback module is reloaded. But when
vif interface is re-created (on xen-netback unbind/bind for example),
the script should be called, regardless of who does that - currently
this case is not handled by the toolstack, and requires manual
script call. Keeping hotplug-status=connected to skip the call is wrong
and leads to not configured interface.

More discussion at
https://lore.kernel.org/xen-devel/afedd7cb-a291-e773-8b0d-4db9b291fa98@ipxe.org/T/#u

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Link: https://lore.kernel.org/r/20220222001817.2264967-1-marmarek@invisiblethingslab.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/xen-netback/xenbus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 94d19158efc18..7acf3940dc1ff 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -256,6 +256,7 @@ static void backend_disconnect(struct backend_info *be)
 		unsigned int queue_index;
 
 		xen_unregister_watchers(vif);
+		xenbus_rm(XBT_NIL, be->dev->nodename, "hotplug-status");
 #ifdef CONFIG_DEBUG_FS
 		xenvif_debugfs_delif(vif);
 #endif /* CONFIG_DEBUG_FS */
@@ -675,7 +676,6 @@ static void hotplug_status_changed(struct xenbus_watch *watch,
 
 		/* Not interested in this watch anymore. */
 		unregister_hotplug_status_watch(be);
-		xenbus_rm(XBT_NIL, be->dev->nodename, "hotplug-status");
 	}
 	kfree(str);
 }
-- 
GitLab


From 8c0c50e9fcff7db3257721537d52575a1a636dc2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Tue, 22 Feb 2022 01:18:17 +0100
Subject: [PATCH 4505/4878] Revert "xen-netback: Check for hotplug-status
 existence before watching"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit e8240addd0a3919e0fd7436416afe9aa6429c484 ]

This reverts commit 2afeec08ab5c86ae21952151f726bfe184f6b23d.

The reasoning in the commit was wrong - the code expected to setup the
watch even if 'hotplug-status' didn't exist. In fact, it relied on the
watch being fired the first time - to check if maybe 'hotplug-status' is
already set to 'connected'. Not registering a watch for non-existing
path (which is the case if hotplug script hasn't been executed yet),
made the backend not waiting for the hotplug script to execute. This in
turns, made the netfront think the interface is fully operational, while
in fact it was not (the vif interface on xen-netback side might not be
configured yet).

This was a workaround for 'hotplug-status' erroneously being removed.
But since that is reverted now, the workaround is not necessary either.

More discussion at
https://lore.kernel.org/xen-devel/afedd7cb-a291-e773-8b0d-4db9b291fa98@ipxe.org/T/#u

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Michael Brown <mbrown@fensystems.co.uk>
Link: https://lore.kernel.org/r/20220222001817.2264967-2-marmarek@invisiblethingslab.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/xen-netback/xenbus.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 7acf3940dc1ff..ca261e0fc9c9b 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -824,15 +824,11 @@ static void connect(struct backend_info *be)
 	xenvif_carrier_on(be->vif);
 
 	unregister_hotplug_status_watch(be);
-	if (xenbus_exists(XBT_NIL, dev->nodename, "hotplug-status")) {
-		err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch,
-					   NULL, hotplug_status_changed,
-					   "%s/%s", dev->nodename,
-					   "hotplug-status");
-		if (err)
-			goto err;
+	err = xenbus_watch_pathfmt(dev, &be->hotplug_status_watch, NULL,
+				   hotplug_status_changed,
+				   "%s/%s", dev->nodename, "hotplug-status");
+	if (!err)
 		be->have_hotplug_status_watch = 1;
-	}
 
 	netif_tx_wake_all_queues(be->vif->dev);
 
-- 
GitLab


From ae7597b47dda2cd9294b8d26443ea7a5abd33880 Mon Sep 17 00:00:00 2001
From: Niels Dossche <dossche.niels@gmail.com>
Date: Wed, 23 Feb 2022 14:19:56 +0100
Subject: [PATCH 4506/4878] ipv6: prevent a possible race condition with
 lifetimes

[ Upstream commit 6c0d8833a605e195ae219b5042577ce52bf71fff ]

valid_lft, prefered_lft and tstamp are always accessed under the lock
"lock" in other places. Reading these without taking the lock may result
in inconsistencies regarding the calculation of the valid and preferred
variables since decisions are taken on these fields for those variables.

Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Niels Dossche <niels.dossche@ugent.be>
Link: https://lore.kernel.org/r/20220223131954.6570-1-niels.dossche@ugent.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/addrconf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 072c348237536..7c5bf39dca5d1 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4979,6 +4979,7 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
 	    nla_put_s32(skb, IFA_TARGET_NETNSID, args->netnsid))
 		goto error;
 
+	spin_lock_bh(&ifa->lock);
 	if (!((ifa->flags&IFA_F_PERMANENT) &&
 	      (ifa->prefered_lft == INFINITY_LIFE_TIME))) {
 		preferred = ifa->prefered_lft;
@@ -5000,6 +5001,7 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
 		preferred = INFINITY_LIFE_TIME;
 		valid = INFINITY_LIFE_TIME;
 	}
+	spin_unlock_bh(&ifa->lock);
 
 	if (!ipv6_addr_any(&ifa->peer_addr)) {
 		if (nla_put_in6_addr(skb, IFA_LOCAL, &ifa->addr) < 0 ||
-- 
GitLab


From 8d276f10e84a10941d7815aa061891f5f82d4e5b Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@linux.ibm.com>
Date: Mon, 14 Feb 2022 14:44:56 +0100
Subject: [PATCH 4507/4878] tracing: Ensure trace buffer is at least 4096 bytes
 large

[ Upstream commit 7acf3a127bb7c65ff39099afd78960e77b2ca5de ]

Booting the kernel with 'trace_buf_size=1' give a warning at
boot during the ftrace selftests:

[    0.892809] Running postponed tracer tests:
[    0.892893] Testing tracer function:
[    0.901899] Callback from call_rcu_tasks_trace() invoked.
[    0.983829] Callback from call_rcu_tasks_rude() invoked.
[    1.072003] .. bad ring buffer .. corrupted trace buffer ..
[    1.091944] Callback from call_rcu_tasks() invoked.
[    1.097695] PASSED
[    1.097701] Testing dynamic ftrace: .. filter failed count=0 ..FAILED!
[    1.353474] ------------[ cut here ]------------
[    1.353478] WARNING: CPU: 0 PID: 1 at kernel/trace/trace.c:1951 run_tracer_selftest+0x13c/0x1b0

Therefore enforce a minimum of 4096 bytes to make the selftest pass.

Link: https://lkml.kernel.org/r/20220214134456.1751749-1-svens@linux.ibm.com

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 71ed0616d83bd..953dd9568dd74 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1490,10 +1490,12 @@ static int __init set_buf_size(char *str)
 	if (!str)
 		return 0;
 	buf_size = memparse(str, &str);
-	/* nr_entries can not be zero */
-	if (buf_size == 0)
-		return 0;
-	trace_buf_size = buf_size;
+	/*
+	 * nr_entries can not be zero and the startup
+	 * tests require some buffer space. Therefore
+	 * ensure we have at least 4096 bytes of buffer.
+	 */
+	trace_buf_size = max(4096UL, buf_size);
 	return 1;
 }
 __setup("trace_buf_size=", set_buf_size);
-- 
GitLab


From 71013d071b505c0fec2d86b30fbd44ec7f515e5c Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Date: Fri, 25 Feb 2022 19:11:08 -0800
Subject: [PATCH 4508/4878] selftest/vm: fix map_fixed_noreplace test failure

[ Upstream commit f39c58008dee7ab5fc94c3f1995a21e886801df0 ]

On the latest RHEL the test fails due to executable mapped at 256MB
address

     # ./map_fixed_noreplace
    mmap() @ 0x10000000-0x10050000 p=0xffffffffffffffff result=File exists
    10000000-10010000 r-xp 00000000 fd:04 34905657                           /root/rpmbuild/BUILD/kernel-5.14.0-56.el9/linux-5.14.0-56.el9.ppc64le/tools/testing/selftests/vm/map_fixed_noreplace
    10010000-10020000 r--p 00000000 fd:04 34905657                           /root/rpmbuild/BUILD/kernel-5.14.0-56.el9/linux-5.14.0-56.el9.ppc64le/tools/testing/selftests/vm/map_fixed_noreplace
    10020000-10030000 rw-p 00010000 fd:04 34905657                           /root/rpmbuild/BUILD/kernel-5.14.0-56.el9/linux-5.14.0-56.el9.ppc64le/tools/testing/selftests/vm/map_fixed_noreplace
    10029b90000-10029bc0000 rw-p 00000000 00:00 0                            [heap]
    7fffbb510000-7fffbb750000 r-xp 00000000 fd:04 24534                      /usr/lib64/libc.so.6
    7fffbb750000-7fffbb760000 r--p 00230000 fd:04 24534                      /usr/lib64/libc.so.6
    7fffbb760000-7fffbb770000 rw-p 00240000 fd:04 24534                      /usr/lib64/libc.so.6
    7fffbb780000-7fffbb7a0000 r--p 00000000 00:00 0                          [vvar]
    7fffbb7a0000-7fffbb7b0000 r-xp 00000000 00:00 0                          [vdso]
    7fffbb7b0000-7fffbb800000 r-xp 00000000 fd:04 24514                      /usr/lib64/ld64.so.2
    7fffbb800000-7fffbb810000 r--p 00040000 fd:04 24514                      /usr/lib64/ld64.so.2
    7fffbb810000-7fffbb820000 rw-p 00050000 fd:04 24514                      /usr/lib64/ld64.so.2
    7fffd93f0000-7fffd9420000 rw-p 00000000 00:00 0                          [stack]
    Error: couldn't map the space we need for the test

Fix this by finding a free address using mmap instead of hardcoding
BASE_ADDRESS.

Link: https://lkml.kernel.org/r/20220217083417.373823-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Jann Horn <jannh@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/vm/map_fixed_noreplace.c        | 49 ++++++++++++++-----
 1 file changed, 37 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/vm/map_fixed_noreplace.c b/tools/testing/selftests/vm/map_fixed_noreplace.c
index d91bde5112686..eed44322d1a63 100644
--- a/tools/testing/selftests/vm/map_fixed_noreplace.c
+++ b/tools/testing/selftests/vm/map_fixed_noreplace.c
@@ -17,9 +17,6 @@
 #define MAP_FIXED_NOREPLACE 0x100000
 #endif
 
-#define BASE_ADDRESS	(256ul * 1024 * 1024)
-
-
 static void dump_maps(void)
 {
 	char cmd[32];
@@ -28,18 +25,46 @@ static void dump_maps(void)
 	system(cmd);
 }
 
+static unsigned long find_base_addr(unsigned long size)
+{
+	void *addr;
+	unsigned long flags;
+
+	flags = MAP_PRIVATE | MAP_ANONYMOUS;
+	addr = mmap(NULL, size, PROT_NONE, flags, -1, 0);
+	if (addr == MAP_FAILED) {
+		printf("Error: couldn't map the space we need for the test\n");
+		return 0;
+	}
+
+	if (munmap(addr, size) != 0) {
+		printf("Error: couldn't map the space we need for the test\n");
+		return 0;
+	}
+	return (unsigned long)addr;
+}
+
 int main(void)
 {
+	unsigned long base_addr;
 	unsigned long flags, addr, size, page_size;
 	char *p;
 
 	page_size = sysconf(_SC_PAGE_SIZE);
 
+	//let's find a base addr that is free before we start the tests
+	size = 5 * page_size;
+	base_addr = find_base_addr(size);
+	if (!base_addr) {
+		printf("Error: couldn't map the space we need for the test\n");
+		return 1;
+	}
+
 	flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE;
 
 	// Check we can map all the areas we need below
 	errno = 0;
-	addr = BASE_ADDRESS;
+	addr = base_addr;
 	size = 5 * page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 
@@ -60,7 +85,7 @@ int main(void)
 	printf("unmap() successful\n");
 
 	errno = 0;
-	addr = BASE_ADDRESS + page_size;
+	addr = base_addr + page_size;
 	size = 3 * page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -80,7 +105,7 @@ int main(void)
 	 *     +4 |  free  | new
 	 */
 	errno = 0;
-	addr = BASE_ADDRESS;
+	addr = base_addr;
 	size = 5 * page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -101,7 +126,7 @@ int main(void)
 	 *     +4 |  free  |
 	 */
 	errno = 0;
-	addr = BASE_ADDRESS + (2 * page_size);
+	addr = base_addr + (2 * page_size);
 	size = page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -121,7 +146,7 @@ int main(void)
 	 *     +4 |  free  | new
 	 */
 	errno = 0;
-	addr = BASE_ADDRESS + (3 * page_size);
+	addr = base_addr + (3 * page_size);
 	size = 2 * page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -141,7 +166,7 @@ int main(void)
 	 *     +4 |  free  |
 	 */
 	errno = 0;
-	addr = BASE_ADDRESS;
+	addr = base_addr;
 	size = 2 * page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -161,7 +186,7 @@ int main(void)
 	 *     +4 |  free  |
 	 */
 	errno = 0;
-	addr = BASE_ADDRESS;
+	addr = base_addr;
 	size = page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -181,7 +206,7 @@ int main(void)
 	 *     +4 |  free  |  new
 	 */
 	errno = 0;
-	addr = BASE_ADDRESS + (4 * page_size);
+	addr = base_addr + (4 * page_size);
 	size = page_size;
 	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
 	printf("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
@@ -192,7 +217,7 @@ int main(void)
 		return 1;
 	}
 
-	addr = BASE_ADDRESS;
+	addr = base_addr;
 	size = 5 * page_size;
 	if (munmap((void *)addr, size) != 0) {
 		dump_maps();
-- 
GitLab


From f1f5d089fcc60a13986d279e500bfe2f652d3340 Mon Sep 17 00:00:00 2001
From: Mike Kravetz <mike.kravetz@oracle.com>
Date: Fri, 25 Feb 2022 19:11:26 -0800
Subject: [PATCH 4509/4878] selftests/memfd: clean up mapping in mfd_fail_write

[ Upstream commit fda153c89af344d21df281009a9d046cf587ea0f ]

Running the memfd script ./run_hugetlbfs_test.sh will often end in error
as follows:

    memfd-hugetlb: CREATE
    memfd-hugetlb: BASIC
    memfd-hugetlb: SEAL-WRITE
    memfd-hugetlb: SEAL-FUTURE-WRITE
    memfd-hugetlb: SEAL-SHRINK
    fallocate(ALLOC) failed: No space left on device
    ./run_hugetlbfs_test.sh: line 60: 166855 Aborted                 (core dumped) ./memfd_test hugetlbfs
    opening: ./mnt/memfd
    fuse: DONE

If no hugetlb pages have been preallocated, run_hugetlbfs_test.sh will
allocate 'just enough' pages to run the test.  In the SEAL-FUTURE-WRITE
test the mfd_fail_write routine maps the file, but does not unmap.  As a
result, two hugetlb pages remain reserved for the mapping.  When the
fallocate call in the SEAL-SHRINK test attempts allocate all hugetlb
pages, it is short by the two reserved pages.

Fix by making sure to unmap in mfd_fail_write.

Link: https://lkml.kernel.org/r/20220219004340.56478-1-mike.kravetz@oracle.com
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/memfd/memfd_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 334a7eea20042..fba322d1c67a1 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -455,6 +455,7 @@ static void mfd_fail_write(int fd)
 			printf("mmap()+mprotect() didn't fail as expected\n");
 			abort();
 		}
+		munmap(p, mfd_def_size);
 	}
 
 	/* verify PUNCH_HOLE fails */
-- 
GitLab


From f2c52a4baf5637f6bf5dd952b047dedc619efd56 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 11 Mar 2022 11:49:12 -0800
Subject: [PATCH 4510/4878] ARM: Spectre-BHB: provide empty stub for non-config

commit 68453767131a5deec1e8f9ac92a9042f929e585d upstream.

When CONFIG_GENERIC_CPU_VULNERABILITIES is not set, references
to spectre_v2_update_state() cause a build error, so provide an
empty stub for that function when the Kconfig option is not set.

Fixes this build error:

  arm-linux-gnueabi-ld: arch/arm/mm/proc-v7-bugs.o: in function `cpu_v7_bugs_init':
  proc-v7-bugs.c:(.text+0x52): undefined reference to `spectre_v2_update_state'
  arm-linux-gnueabi-ld: proc-v7-bugs.c:(.text+0x82): undefined reference to `spectre_v2_update_state'

Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/include/asm/spectre.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/include/asm/spectre.h b/arch/arm/include/asm/spectre.h
index d1fa5607d3aa3..85f9e538fb325 100644
--- a/arch/arm/include/asm/spectre.h
+++ b/arch/arm/include/asm/spectre.h
@@ -25,7 +25,13 @@ enum {
 	SPECTRE_V2_METHOD_LOOP8 = BIT(__SPECTRE_V2_METHOD_LOOP8),
 };
 
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
 void spectre_v2_update_state(unsigned int state, unsigned int methods);
+#else
+static inline void spectre_v2_update_state(unsigned int state,
+					   unsigned int methods)
+{}
+#endif
 
 int spectre_bhb_update_vectors(unsigned int method);
 
-- 
GitLab


From ab5595b45f732212b3b1974041b43a257153edb7 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Mon, 7 Mar 2022 16:30:44 +0100
Subject: [PATCH 4511/4878] fuse: fix pipe buffer lifetime for direct_io

commit 0c4bcfdecb1ac0967619ee7ff44871d93c08c909 upstream.

In FOPEN_DIRECT_IO mode, fuse_file_write_iter() calls
fuse_direct_write_iter(), which normally calls fuse_direct_io(), which then
imports the write buffer with fuse_get_user_pages(), which uses
iov_iter_get_pages() to grab references to userspace pages instead of
actually copying memory.

On the filesystem device side, these pages can then either be read to
userspace (via fuse_dev_read()), or splice()d over into a pipe using
fuse_dev_splice_read() as pipe buffers with &nosteal_pipe_buf_ops.

This is wrong because after fuse_dev_do_read() unlocks the FUSE request,
the userspace filesystem can mark the request as completed, causing write()
to return. At that point, the userspace filesystem should no longer have
access to the pipe buffer.

Fix by copying pages coming from the user address space to new pipe
buffers.

Reported-by: Jann Horn <jannh@google.com>
Fixes: c3021629a0d8 ("fuse: support splice() reading from fuse device")
Cc: <stable@vger.kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/fuse/dev.c    | 12 +++++++++++-
 fs/fuse/file.c   |  1 +
 fs/fuse/fuse_i.h |  1 +
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index d100b5dfedbd2..8ac91ba05d6de 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -945,7 +945,17 @@ static int fuse_copy_page(struct fuse_copy_state *cs, struct page **pagep,
 
 	while (count) {
 		if (cs->write && cs->pipebufs && page) {
-			return fuse_ref_page(cs, page, offset, count);
+			/*
+			 * Can't control lifetime of pipe buffers, so always
+			 * copy user pages.
+			 */
+			if (cs->req->args->user_pages) {
+				err = fuse_copy_fill(cs);
+				if (err)
+					return err;
+			} else {
+				return fuse_ref_page(cs, page, offset, count);
+			}
 		} else if (!cs->len) {
 			if (cs->move_pages && page &&
 			    offset == 0 && count == PAGE_SIZE) {
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e81d1c3eb7e11..d1bc96ee6eb3d 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1418,6 +1418,7 @@ static int fuse_get_user_pages(struct fuse_args_pages *ap, struct iov_iter *ii,
 			(PAGE_SIZE - ret) & (PAGE_SIZE - 1);
 	}
 
+	ap->args.user_pages = true;
 	if (write)
 		ap->args.in_pages = true;
 	else
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index b159d8b5e8937..b10cddd723559 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -263,6 +263,7 @@ struct fuse_args {
 	bool nocreds:1;
 	bool in_pages:1;
 	bool out_pages:1;
+	bool user_pages:1;
 	bool out_argvar:1;
 	bool page_zeroing:1;
 	bool page_replace:1;
-- 
GitLab


From 8c1bc04c8c8252e964de2c60a456545cdc810ad3 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 2 Mar 2022 11:16:36 +0100
Subject: [PATCH 4512/4878] staging: rtl8723bs: Fix access-point mode deadlock

commit 8f4347081be32e67b0873827e0138ab0fdaaf450 upstream.

Commit 54659ca026e5 ("staging: rtl8723bs: remove possible deadlock when
disconnect (v2)") split the locking of pxmitpriv->lock vs sleep_q/lock
into 2 locks in attempt to fix a lockdep reported issue with the locking
order of the sta_hash_lock vs pxmitpriv->lock.

But in the end this turned out to not fully solve the sta_hash_lock issue
so commit a7ac783c338b ("staging: rtl8723bs: remove a second possible
deadlock") was added to fix this in another way.

The original fix was kept as it was still seen as a good thing to have,
but now it turns out that it creates a deadlock in access-point mode:

[Feb20 23:47] ======================================================
[  +0.074085] WARNING: possible circular locking dependency detected
[  +0.074077] 5.16.0-1-amd64 #1 Tainted: G         C  E
[  +0.064710] ------------------------------------------------------
[  +0.074075] ksoftirqd/3/29 is trying to acquire lock:
[  +0.060542] ffffb8b30062ab00 (&pxmitpriv->lock){+.-.}-{2:2}, at: rtw_xmit_classifier+0x8a/0x140 [r8723bs]
[  +0.114921]
              but task is already holding lock:
[  +0.069908] ffffb8b3007ab704 (&psta->sleep_q.lock){+.-.}-{2:2}, at: wakeup_sta_to_xmit+0x3b/0x300 [r8723bs]
[  +0.116976]
              which lock already depends on the new lock.

[  +0.098037]
              the existing dependency chain (in reverse order) is:
[  +0.089704]
              -> #1 (&psta->sleep_q.lock){+.-.}-{2:2}:
[  +0.077232]        _raw_spin_lock_bh+0x34/0x40
[  +0.053261]        xmitframe_enqueue_for_sleeping_sta+0xc1/0x2f0 [r8723bs]
[  +0.082572]        rtw_xmit+0x58b/0x940 [r8723bs]
[  +0.056528]        _rtw_xmit_entry+0xba/0x350 [r8723bs]
[  +0.062755]        dev_hard_start_xmit+0xf1/0x320
[  +0.056381]        sch_direct_xmit+0x9e/0x360
[  +0.052212]        __dev_queue_xmit+0xce4/0x1080
[  +0.055334]        ip6_finish_output2+0x18f/0x6e0
[  +0.056378]        ndisc_send_skb+0x2c8/0x870
[  +0.052209]        ndisc_send_ns+0xd3/0x210
[  +0.050130]        addrconf_dad_work+0x3df/0x5a0
[  +0.055338]        process_one_work+0x274/0x5a0
[  +0.054296]        worker_thread+0x52/0x3b0
[  +0.050124]        kthread+0x16c/0x1a0
[  +0.044925]        ret_from_fork+0x1f/0x30
[  +0.049092]
              -> #0 (&pxmitpriv->lock){+.-.}-{2:2}:
[  +0.074101]        __lock_acquire+0x10f5/0x1d80
[  +0.054298]        lock_acquire+0xd7/0x300
[  +0.049088]        _raw_spin_lock_bh+0x34/0x40
[  +0.053248]        rtw_xmit_classifier+0x8a/0x140 [r8723bs]
[  +0.066949]        rtw_xmitframe_enqueue+0xa/0x20 [r8723bs]
[  +0.066946]        rtl8723bs_hal_xmitframe_enqueue+0x14/0x50 [r8723bs]
[  +0.078386]        wakeup_sta_to_xmit+0xa6/0x300 [r8723bs]
[  +0.065903]        rtw_recv_entry+0xe36/0x1160 [r8723bs]
[  +0.063809]        rtl8723bs_recv_tasklet+0x349/0x6c0 [r8723bs]
[  +0.071093]        tasklet_action_common.constprop.0+0xe5/0x110
[  +0.070966]        __do_softirq+0x16f/0x50a
[  +0.050134]        __irq_exit_rcu+0xeb/0x140
[  +0.051172]        irq_exit_rcu+0xa/0x20
[  +0.047006]        common_interrupt+0xb8/0xd0
[  +0.052214]        asm_common_interrupt+0x1e/0x40
[  +0.056381]        finish_task_switch.isra.0+0x100/0x3a0
[  +0.063670]        __schedule+0x3ad/0xd20
[  +0.048047]        schedule+0x4e/0xc0
[  +0.043880]        smpboot_thread_fn+0xc4/0x220
[  +0.054298]        kthread+0x16c/0x1a0
[  +0.044922]        ret_from_fork+0x1f/0x30
[  +0.049088]
              other info that might help us debug this:

[  +0.095950]  Possible unsafe locking scenario:

[  +0.070952]        CPU0                    CPU1
[  +0.054282]        ----                    ----
[  +0.054285]   lock(&psta->sleep_q.lock);
[  +0.047004]                                lock(&pxmitpriv->lock);
[  +0.074082]                                lock(&psta->sleep_q.lock);
[  +0.077209]   lock(&pxmitpriv->lock);
[  +0.043873]
               *** DEADLOCK ***

[  +0.070950] 1 lock held by ksoftirqd/3/29:
[  +0.049082]  #0: ffffb8b3007ab704 (&psta->sleep_q.lock){+.-.}-{2:2}, at: wakeup_sta_to_xmit+0x3b/0x300 [r8723bs]

Analysis shows that in hindsight the splitting of the lock was not
a good idea, so revert this to fix the access-point mode deadlock.

Note this is a straight-forward revert done with git revert, the commented
out "/* spin_lock_bh(&psta_bmc->sleep_q.lock); */" lines were part of the
code before the reverted changes.

Fixes: 54659ca026e5 ("staging: rtl8723bs: remove possible deadlock when disconnect (v2)")
Cc: stable <stable@vger.kernel.org>
Cc: Fabio Aiuto <fabioaiuto83@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215542
Link: https://lore.kernel.org/r/20220302101637.26542-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8723bs/core/rtw_mlme_ext.c |  7 ++++--
 drivers/staging/rtl8723bs/core/rtw_recv.c     | 10 ++++++---
 drivers/staging/rtl8723bs/core/rtw_sta_mgt.c  | 22 +++++++++----------
 drivers/staging/rtl8723bs/core/rtw_xmit.c     | 16 ++++++++------
 .../staging/rtl8723bs/hal/rtl8723bs_xmit.c    |  2 ++
 5 files changed, 33 insertions(+), 24 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index 4df6d04315e39..b912ad2f4b720 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -6679,6 +6679,7 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 	struct sta_info *psta_bmc;
 	struct list_head	*xmitframe_plist, *xmitframe_phead;
 	struct xmit_frame *pxmitframe = NULL;
+	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct sta_priv  *pstapriv = &padapter->stapriv;
 
 	/* for BC/MC Frames */
@@ -6689,7 +6690,8 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 	if ((pstapriv->tim_bitmap&BIT(0)) && (psta_bmc->sleepq_len > 0)) {
 		msleep(10);/*  10ms, ATIM(HIQ) Windows */
 
-		spin_lock_bh(&psta_bmc->sleep_q.lock);
+		/* spin_lock_bh(&psta_bmc->sleep_q.lock); */
+		spin_lock_bh(&pxmitpriv->lock);
 
 		xmitframe_phead = get_list_head(&psta_bmc->sleep_q);
 		xmitframe_plist = get_next(xmitframe_phead);
@@ -6715,7 +6717,8 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 			rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
 		}
 
-		spin_unlock_bh(&psta_bmc->sleep_q.lock);
+		/* spin_unlock_bh(&psta_bmc->sleep_q.lock); */
+		spin_unlock_bh(&pxmitpriv->lock);
 
 		/* check hi queue and bmc_sleepq */
 		rtw_chk_hi_queue_cmd(padapter);
diff --git a/drivers/staging/rtl8723bs/core/rtw_recv.c b/drivers/staging/rtl8723bs/core/rtw_recv.c
index 0d47e6e121777..6979f8dbccb84 100644
--- a/drivers/staging/rtl8723bs/core/rtw_recv.c
+++ b/drivers/staging/rtl8723bs/core/rtw_recv.c
@@ -1144,8 +1144,10 @@ sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_
 		if ((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) {
 			struct list_head	*xmitframe_plist, *xmitframe_phead;
 			struct xmit_frame *pxmitframe = NULL;
+			struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
-			spin_lock_bh(&psta->sleep_q.lock);
+			/* spin_lock_bh(&psta->sleep_q.lock); */
+			spin_lock_bh(&pxmitpriv->lock);
 
 			xmitframe_phead = get_list_head(&psta->sleep_q);
 			xmitframe_plist = get_next(xmitframe_phead);
@@ -1180,10 +1182,12 @@ sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_
 					update_beacon(padapter, _TIM_IE_, NULL, true);
 				}
 
-				spin_unlock_bh(&psta->sleep_q.lock);
+				/* spin_unlock_bh(&psta->sleep_q.lock); */
+				spin_unlock_bh(&pxmitpriv->lock);
 
 			} else {
-				spin_unlock_bh(&psta->sleep_q.lock);
+				/* spin_unlock_bh(&psta->sleep_q.lock); */
+				spin_unlock_bh(&pxmitpriv->lock);
 
 				/* DBG_871X("no buffered packets to xmit\n"); */
 				if (pstapriv->tim_bitmap&BIT(psta->aid)) {
diff --git a/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c b/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
index b1784b4e466f3..e3f56c6cc882e 100644
--- a/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
@@ -330,48 +330,46 @@ u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta)
 
 	/* list_del_init(&psta->wakeup_list); */
 
-	spin_lock_bh(&psta->sleep_q.lock);
+	spin_lock_bh(&pxmitpriv->lock);
+
 	rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
 	psta->sleepq_len = 0;
-	spin_unlock_bh(&psta->sleep_q.lock);
-
-	spin_lock_bh(&pxmitpriv->lock);
 
 	/* vo */
-	spin_lock_bh(&pstaxmitpriv->vo_q.sta_pending.lock);
+	/* spin_lock_bh(&(pxmitpriv->vo_pending.lock)); */
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits;
 	phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt;
 	pstaxmitpriv->vo_q.qcnt = 0;
-	spin_unlock_bh(&pstaxmitpriv->vo_q.sta_pending.lock);
+	/* spin_unlock_bh(&(pxmitpriv->vo_pending.lock)); */
 
 	/* vi */
-	spin_lock_bh(&pstaxmitpriv->vi_q.sta_pending.lock);
+	/* spin_lock_bh(&(pxmitpriv->vi_pending.lock)); */
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits+1;
 	phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt;
 	pstaxmitpriv->vi_q.qcnt = 0;
-	spin_unlock_bh(&pstaxmitpriv->vi_q.sta_pending.lock);
+	/* spin_unlock_bh(&(pxmitpriv->vi_pending.lock)); */
 
 	/* be */
-	spin_lock_bh(&pstaxmitpriv->be_q.sta_pending.lock);
+	/* spin_lock_bh(&(pxmitpriv->be_pending.lock)); */
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->be_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits+2;
 	phwxmit->accnt -= pstaxmitpriv->be_q.qcnt;
 	pstaxmitpriv->be_q.qcnt = 0;
-	spin_unlock_bh(&pstaxmitpriv->be_q.sta_pending.lock);
+	/* spin_unlock_bh(&(pxmitpriv->be_pending.lock)); */
 
 	/* bk */
-	spin_lock_bh(&pstaxmitpriv->bk_q.sta_pending.lock);
+	/* spin_lock_bh(&(pxmitpriv->bk_pending.lock)); */
 	rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
 	list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
 	phwxmit = pxmitpriv->hwxmits+3;
 	phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt;
 	pstaxmitpriv->bk_q.qcnt = 0;
-	spin_unlock_bh(&pstaxmitpriv->bk_q.sta_pending.lock);
+	/* spin_unlock_bh(&(pxmitpriv->bk_pending.lock)); */
 
 	spin_unlock_bh(&pxmitpriv->lock);
 
diff --git a/drivers/staging/rtl8723bs/core/rtw_xmit.c b/drivers/staging/rtl8723bs/core/rtw_xmit.c
index d78cff7ed6a01..6ecaff9728fd4 100644
--- a/drivers/staging/rtl8723bs/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723bs/core/rtw_xmit.c
@@ -1871,6 +1871,8 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 	struct list_head	*plist, *phead;
 	struct	xmit_frame	*pxmitframe;
 
+	spin_lock_bh(&pframequeue->lock);
+
 	phead = get_list_head(pframequeue);
 	plist = get_next(phead);
 
@@ -1881,6 +1883,7 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 
 		rtw_free_xmitframe(pxmitpriv, pxmitframe);
 	}
+	spin_unlock_bh(&pframequeue->lock);
 }
 
 s32 rtw_xmitframe_enqueue(struct adapter *padapter, struct xmit_frame *pxmitframe)
@@ -1943,7 +1946,6 @@ s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
 	struct sta_info *psta;
 	struct tx_servq	*ptxservq;
 	struct pkt_attrib	*pattrib = &pxmitframe->attrib;
-	struct xmit_priv *xmit_priv = &padapter->xmitpriv;
 	struct hw_xmit	*phwxmits =  padapter->xmitpriv.hwxmits;
 	sint res = _SUCCESS;
 
@@ -1972,14 +1974,12 @@ s32 rtw_xmit_classifier(struct adapter *padapter, struct xmit_frame *pxmitframe)
 
 	ptxservq = rtw_get_sta_pending(padapter, psta, pattrib->priority, (u8 *)(&ac_index));
 
-	spin_lock_bh(&xmit_priv->lock);
 	if (list_empty(&ptxservq->tx_pending))
 		list_add_tail(&ptxservq->tx_pending, get_list_head(phwxmits[ac_index].sta_queue));
 
 	list_add_tail(&pxmitframe->list, get_list_head(&ptxservq->sta_pending));
 	ptxservq->qcnt++;
 	phwxmits[ac_index].accnt++;
-	spin_unlock_bh(&xmit_priv->lock);
 
 exit:
 
@@ -2397,10 +2397,11 @@ void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
 	struct list_head	*xmitframe_plist, *xmitframe_phead;
 	struct xmit_frame *pxmitframe = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
+	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
 	psta_bmc = rtw_get_bcmc_stainfo(padapter);
 
-	spin_lock_bh(&psta->sleep_q.lock);
+	spin_lock_bh(&pxmitpriv->lock);
 
 	xmitframe_phead = get_list_head(&psta->sleep_q);
 	xmitframe_plist = get_next(xmitframe_phead);
@@ -2508,7 +2509,7 @@ void wakeup_sta_to_xmit(struct adapter *padapter, struct sta_info *psta)
 
 _exit:
 
-	spin_unlock_bh(&psta->sleep_q.lock);
+	spin_unlock_bh(&pxmitpriv->lock);
 
 	if (update_mask)
 		update_beacon(padapter, _TIM_IE_, NULL, true);
@@ -2520,8 +2521,9 @@ void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *pst
 	struct list_head	*xmitframe_plist, *xmitframe_phead;
 	struct xmit_frame *pxmitframe = NULL;
 	struct sta_priv *pstapriv = &padapter->stapriv;
+	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
-	spin_lock_bh(&psta->sleep_q.lock);
+	spin_lock_bh(&pxmitpriv->lock);
 
 	xmitframe_phead = get_list_head(&psta->sleep_q);
 	xmitframe_plist = get_next(xmitframe_phead);
@@ -2577,7 +2579,7 @@ void xmit_delivery_enabled_frames(struct adapter *padapter, struct sta_info *pst
 		}
 	}
 
-	spin_unlock_bh(&psta->sleep_q.lock);
+	spin_unlock_bh(&pxmitpriv->lock);
 }
 
 void enqueue_pending_xmitbuf(
diff --git a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
index ce5bf2861d0c1..44799c4a9f35b 100644
--- a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
+++ b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
@@ -572,7 +572,9 @@ s32 rtl8723bs_hal_xmit(
 			rtw_issue_addbareq_cmd(padapter, pxmitframe);
 	}
 
+	spin_lock_bh(&pxmitpriv->lock);
 	err = rtw_xmitframe_enqueue(padapter, pxmitframe);
+	spin_unlock_bh(&pxmitpriv->lock);
 	if (err != _SUCCESS) {
 		RT_TRACE(_module_hal_xmit_c_, _drv_err_, ("rtl8723bs_hal_xmit: enqueue xmitframe fail\n"));
 		rtw_free_xmitframe(pxmitpriv, pxmitframe);
-- 
GitLab


From 6d9700b445098dbbce0caff4b8cfca214cf1e757 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 28 Feb 2022 10:43:31 +0300
Subject: [PATCH 4513/4878] staging: gdm724x: fix use after free in
 gdm_lte_rx()

commit fc7f750dc9d102c1ed7bbe4591f991e770c99033 upstream.

The netif_rx_ni() function frees the skb so we can't dereference it to
save the skb->len.

Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver")
Cc: stable <stable@vger.kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20220228074331.GA13685@kili
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/gdm724x/gdm_lte.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index bd5f874334043..de30262c3fae0 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -76,14 +76,15 @@ static void tx_complete(void *arg)
 
 static int gdm_lte_rx(struct sk_buff *skb, struct nic *nic, int nic_type)
 {
-	int ret;
+	int ret, len;
 
+	len = skb->len + ETH_HLEN;
 	ret = netif_rx_ni(skb);
 	if (ret == NET_RX_DROP) {
 		nic->stats.rx_dropped++;
 	} else {
 		nic->stats.rx_packets++;
-		nic->stats.rx_bytes += skb->len + ETH_HLEN;
+		nic->stats.rx_bytes += len;
 	}
 
 	return 0;
-- 
GitLab


From 0c6eeaf8c168c8f48fc89c2795741f655d00ec5c Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@calian.com>
Date: Thu, 3 Mar 2022 12:10:27 -0600
Subject: [PATCH 4514/4878] net: macb: Fix lost RX packet wakeup race in NAPI
 receive

commit 0bf476fc3624e3a72af4ba7340d430a91c18cd67 upstream.

There is an oddity in the way the RSR register flags propagate to the
ISR register (and the actual interrupt output) on this hardware: it
appears that RSR register bits only result in ISR being asserted if the
interrupt was actually enabled at the time, so enabling interrupts with
RSR bits already set doesn't trigger an interrupt to be raised. There
was already a partial fix for this race in the macb_poll function where
it checked for RSR bits being set and re-triggered NAPI receive.
However, there was a still a race window between checking RSR and
actually enabling interrupts, where a lost wakeup could happen. It's
necessary to check again after enabling interrupts to see if RSR was set
just prior to the interrupt being enabled, and re-trigger receive in that
case.

This issue was noticed in a point-to-point UDP request-response protocol
which periodically saw timeouts or abnormally high response times due to
received packets not being processed in a timely fashion. In many
applications, more packets arriving, including TCP retransmissions, would
cause the original packet to be processed, thus masking the issue.

Fixes: 02f7a34f34e3 ("net: macb: Re-enable RX interrupt only when RX is done")
Cc: stable@vger.kernel.org
Co-developed-by: Scott McNutt <scott.mcnutt@siriusxm.com>
Signed-off-by: Scott McNutt <scott.mcnutt@siriusxm.com>
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/cadence/macb_main.c | 25 +++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 2af464ac250ac..f29ec765d684a 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -1448,7 +1448,14 @@ static int macb_poll(struct napi_struct *napi, int budget)
 	if (work_done < budget) {
 		napi_complete_done(napi, work_done);
 
-		/* Packets received while interrupts were disabled */
+		/* RSR bits only seem to propagate to raise interrupts when
+		 * interrupts are enabled at the time, so if bits are already
+		 * set due to packets received while interrupts were disabled,
+		 * they will not cause another interrupt to be generated when
+		 * interrupts are re-enabled.
+		 * Check for this case here. This has been seen to happen
+		 * around 30% of the time under heavy network load.
+		 */
 		status = macb_readl(bp, RSR);
 		if (status) {
 			if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
@@ -1456,6 +1463,22 @@ static int macb_poll(struct napi_struct *napi, int budget)
 			napi_reschedule(napi);
 		} else {
 			queue_writel(queue, IER, bp->rx_intr_mask);
+
+			/* In rare cases, packets could have been received in
+			 * the window between the check above and re-enabling
+			 * interrupts. Therefore, a double-check is required
+			 * to avoid losing a wakeup. This can potentially race
+			 * with the interrupt handler doing the same actions
+			 * if an interrupt is raised just after enabling them,
+			 * but this should be harmless.
+			 */
+			status = macb_readl(bp, RSR);
+			if (unlikely(status)) {
+				queue_writel(queue, IDR, bp->rx_intr_mask);
+				if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
+					queue_writel(queue, ISR, MACB_BIT(RCOMP));
+				napi_schedule(napi);
+			}
 		}
 	}
 
-- 
GitLab


From a69aa422b478592539201a70cab9146b2a9e53bb Mon Sep 17 00:00:00 2001
From: Rong Chen <rong.chen@amlogic.com>
Date: Wed, 16 Feb 2022 20:42:39 +0800
Subject: [PATCH 4515/4878] mmc: meson: Fix usage of meson_mmc_post_req()

commit f0d2f15362f02444c5d7ffd5a5eb03e4aa54b685 upstream.

Currently meson_mmc_post_req() is called in meson_mmc_request() right
after meson_mmc_start_cmd(). This could lead to DMA unmapping before the request
is actually finished.

To fix, don't call meson_mmc_post_req() until meson_mmc_request_done().

Signed-off-by: Rong Chen <rong.chen@amlogic.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Fixes: 79ed05e329c3 ("mmc: meson-gx: add support for descriptor chain mode")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220216124239.4007667-1-rong.chen@amlogic.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/meson-gx-mmc.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index b274083a6e635..091e0e051d109 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -173,6 +173,8 @@ struct meson_host {
 	int irq;
 
 	bool vqmmc_enabled;
+	bool needs_pre_post_req;
+
 };
 
 #define CMD_CFG_LENGTH_MASK GENMASK(8, 0)
@@ -652,6 +654,8 @@ static void meson_mmc_request_done(struct mmc_host *mmc,
 	struct meson_host *host = mmc_priv(mmc);
 
 	host->cmd = NULL;
+	if (host->needs_pre_post_req)
+		meson_mmc_post_req(mmc, mrq, 0);
 	mmc_request_done(host->mmc, mrq);
 }
 
@@ -869,7 +873,7 @@ static int meson_mmc_validate_dram_access(struct mmc_host *mmc, struct mmc_data
 static void meson_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
 {
 	struct meson_host *host = mmc_priv(mmc);
-	bool needs_pre_post_req = mrq->data &&
+	host->needs_pre_post_req = mrq->data &&
 			!(mrq->data->host_cookie & SD_EMMC_PRE_REQ_DONE);
 
 	/*
@@ -885,22 +889,19 @@ static void meson_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
 		}
 	}
 
-	if (needs_pre_post_req) {
+	if (host->needs_pre_post_req) {
 		meson_mmc_get_transfer_mode(mmc, mrq);
 		if (!meson_mmc_desc_chain_mode(mrq->data))
-			needs_pre_post_req = false;
+			host->needs_pre_post_req = false;
 	}
 
-	if (needs_pre_post_req)
+	if (host->needs_pre_post_req)
 		meson_mmc_pre_req(mmc, mrq);
 
 	/* Stop execution */
 	writel(0, host->regs + SD_EMMC_START);
 
 	meson_mmc_start_cmd(mmc, mrq->sbc ?: mrq->cmd);
-
-	if (needs_pre_post_req)
-		meson_mmc_post_req(mmc, mrq, 0);
 }
 
 static void meson_mmc_read_resp(struct mmc_host *mmc, struct mmc_command *cmd)
-- 
GitLab


From 1ef5fe3dba2a15a9a94c2bc1fe6cb03002343a28 Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <kernel@esmil.dk>
Date: Wed, 23 Feb 2022 20:12:57 +0100
Subject: [PATCH 4516/4878] riscv: Fix auipc+jalr relocation range checks

commit 0966d385830de3470b7131db8e86c0c5bc9c52dc upstream.

RISC-V can do PC-relative jumps with a 32bit range using the following
two instructions:

	auipc	t0, imm20	; t0 = PC + imm20 * 2^12
	jalr	ra, t0, imm12	; ra = PC + 4, PC = t0 + imm12

Crucially both the 20bit immediate imm20 and the 12bit immediate imm12
are treated as two's-complement signed values. For this reason the
immediates are usually calculated like this:

	imm20 = (offset + 0x800) >> 12
	imm12 = offset & 0xfff

..where offset is the signed offset from the auipc instruction. When
the 11th bit of offset is 0 the addition of 0x800 doesn't change the top
20 bits and imm12 considered positive. When the 11th bit is 1 the carry
of the addition by 0x800 means imm20 is one higher, but since imm12 is
then considered negative the two's complement representation means it
all cancels out nicely.

However, this addition by 0x800 (2^11) means an offset greater than or
equal to 2^31 - 2^11 would overflow so imm20 is considered negative and
result in a backwards jump. Similarly the lower range of offset is also
moved down by 2^11 and hence the true 32bit range is

	[-2^31 - 2^11, 2^31 - 2^11)

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Fixes: e2c0cdfba7f6 ("RISC-V: User-facing API")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/kernel/module.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 104fba889cf76..c3310a68ac463 100644
--- a/arch/riscv/kernel/module.c
+++ b/arch/riscv/kernel/module.c
@@ -13,6 +13,19 @@
 #include <linux/pgtable.h>
 #include <asm/sections.h>
 
+/*
+ * The auipc+jalr instruction pair can reach any PC-relative offset
+ * in the range [-2^31 - 2^11, 2^31 - 2^11)
+ */
+static bool riscv_insn_valid_32bit_offset(ptrdiff_t val)
+{
+#ifdef CONFIG_32BIT
+	return true;
+#else
+	return (-(1L << 31) - (1L << 11)) <= val && val < ((1L << 31) - (1L << 11));
+#endif
+}
+
 static int apply_r_riscv_32_rela(struct module *me, u32 *location, Elf_Addr v)
 {
 	if (v != (u32)v) {
@@ -95,7 +108,7 @@ static int apply_r_riscv_pcrel_hi20_rela(struct module *me, u32 *location,
 	ptrdiff_t offset = (void *)v - (void *)location;
 	s32 hi20;
 
-	if (offset != (s32)offset) {
+	if (!riscv_insn_valid_32bit_offset(offset)) {
 		pr_err(
 		  "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n",
 		  me->name, (long long)v, location);
@@ -197,10 +210,9 @@ static int apply_r_riscv_call_plt_rela(struct module *me, u32 *location,
 				       Elf_Addr v)
 {
 	ptrdiff_t offset = (void *)v - (void *)location;
-	s32 fill_v = offset;
 	u32 hi20, lo12;
 
-	if (offset != fill_v) {
+	if (!riscv_insn_valid_32bit_offset(offset)) {
 		/* Only emit the plt entry if offset over 32-bit range */
 		if (IS_ENABLED(CONFIG_MODULE_SECTIONS)) {
 			offset = module_emit_plt_entry(me, v);
@@ -224,10 +236,9 @@ static int apply_r_riscv_call_rela(struct module *me, u32 *location,
 				   Elf_Addr v)
 {
 	ptrdiff_t offset = (void *)v - (void *)location;
-	s32 fill_v = offset;
 	u32 hi20, lo12;
 
-	if (offset != fill_v) {
+	if (!riscv_insn_valid_32bit_offset(offset)) {
 		pr_err(
 		  "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n",
 		  me->name, (long long)v, location);
-- 
GitLab


From 8bfb959ea28df90b00485b49513d05fffd48ad75 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Thu, 10 Mar 2022 11:39:23 +0100
Subject: [PATCH 4517/4878] arm64: dts: marvell: armada-37xx: Remap IO space to
 bus address 0x0
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit a1cc1697bb56cdf880ad4d17b79a39ef2c294bc9 upstream.

Legacy and old PCI I/O based cards do not support 32-bit I/O addressing.

Since commit 64f160e19e92 ("PCI: aardvark: Configure PCIe resources from
'ranges' DT property") kernel can set different PCIe address on CPU and
different on the bus for the one A37xx address mapping without any firmware
support in case the bus address does not conflict with other A37xx mapping.

So remap I/O space to the bus address 0x0 to enable support for old legacy
I/O port based cards which have hardcoded I/O ports in low address space.

Note that DDR on A37xx is mapped to bus address 0x0. And mapping of I/O
space can be set to address 0x0 too because MEM space and I/O space are
separate and so do not conflict.

Remapping IO space on Turris Mox to different address is not possible to
due bootloader bug.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 76f6386b25cc ("arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700")
Cc: stable@vger.kernel.org # 64f160e19e92 ("PCI: aardvark: Configure PCIe resources from 'ranges' DT property")
Cc: stable@vger.kernel.org # 514ef1e62d65 ("arm64: dts: marvell: armada-37xx: Extend PCIe MEM space")
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 7 ++++++-
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi           | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index ad963b51dcbe1..00e5dbf4b8236 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -138,7 +138,9 @@
 	/*
 	 * U-Boot port for Turris Mox has a bug which always expects that "ranges" DT property
 	 * contains exactly 2 ranges with 3 (child) address cells, 2 (parent) address cells and
-	 * 2 size cells and also expects that the second range starts at 16 MB offset. If these
+	 * 2 size cells and also expects that the second range starts at 16 MB offset. Also it
+	 * expects that first range uses same address for PCI (child) and CPU (parent) cells (so
+	 * no remapping) and that this address is the lowest from all specified ranges. If these
 	 * conditions are not met then U-Boot crashes during loading kernel DTB file. PCIe address
 	 * space is 128 MB long, so the best split between MEM and IO is to use fixed 16 MB window
 	 * for IO and the rest 112 MB (64+32+16) for MEM, despite that maximal IO size is just 64 kB.
@@ -147,6 +149,9 @@
 	 * https://source.denx.de/u-boot/u-boot/-/commit/cb2ddb291ee6fcbddd6d8f4ff49089dfe580f5d7
 	 * https://source.denx.de/u-boot/u-boot/-/commit/c64ac3b3185aeb3846297ad7391fc6df8ecd73bf
 	 * https://source.denx.de/u-boot/u-boot/-/commit/4a82fca8e330157081fc132a591ebd99ba02ee33
+	 * Bug related to requirement of same child and parent addresses for first range is fixed
+	 * in U-Boot version 2022.04 by following commit:
+	 * https://source.denx.de/u-boot/u-boot/-/commit/1fd54253bca7d43d046bba4853fe5fafd034bc17
 	 */
 	#address-cells = <3>;
 	#size-cells = <2>;
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 2a2015a153627..0f4bcd15d8580 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -495,7 +495,7 @@
 			 * (totaling 127 MiB) for MEM.
 			 */
 			ranges = <0x82000000 0 0xe8000000   0 0xe8000000   0 0x07f00000   /* Port 0 MEM */
-				  0x81000000 0 0xefff0000   0 0xefff0000   0 0x00010000>; /* Port 0 IO */
+				  0x81000000 0 0x00000000   0 0xefff0000   0 0x00010000>; /* Port 0 IO */
 			interrupt-map-mask = <0 0 0 7>;
 			interrupt-map = <0 0 0 1 &pcie_intc 0>,
 					<0 0 0 2 &pcie_intc 1>,
-- 
GitLab


From bf52b627cf4745cde774e0bb678c304a3f535142 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Fri, 14 Jan 2022 14:56:15 -0500
Subject: [PATCH 4518/4878] virtio: unexport virtio_finalize_features

commit 838d6d3461db0fdbf33fc5f8a69c27b50b4a46da upstream.

virtio_finalize_features is only used internally within virtio.
No reason to export it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virtio/virtio.c | 3 +--
 include/linux/virtio.h  | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 5c53098755a35..ae092fcd67508 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -167,7 +167,7 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status)
 }
 EXPORT_SYMBOL_GPL(virtio_add_status);
 
-int virtio_finalize_features(struct virtio_device *dev)
+static int virtio_finalize_features(struct virtio_device *dev)
 {
 	int ret = dev->config->finalize_features(dev);
 	unsigned status;
@@ -203,7 +203,6 @@ int virtio_finalize_features(struct virtio_device *dev)
 	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(virtio_finalize_features);
 
 static int virtio_dev_probe(struct device *_d)
 {
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 8ecc2e208d613..90c5ad5568097 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -135,7 +135,6 @@ void virtio_break_device(struct virtio_device *dev);
 void virtio_config_changed(struct virtio_device *dev);
 void virtio_config_disable(struct virtio_device *dev);
 void virtio_config_enable(struct virtio_device *dev);
-int virtio_finalize_features(struct virtio_device *dev);
 #ifdef CONFIG_PM_SLEEP
 int virtio_device_freeze(struct virtio_device *dev);
 int virtio_device_restore(struct virtio_device *dev);
-- 
GitLab


From 573a3228ca3268441ce334251cb9fec0d69ca574 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Fri, 14 Jan 2022 14:58:41 -0500
Subject: [PATCH 4519/4878] virtio: acknowledge all features before access

commit 4fa59ede95195f267101a1b8916992cf3f245cdb upstream.

The feature negotiation was designed in a way that
makes it possible for devices to know which config
fields will be accessed by drivers.

This is broken since commit 404123c2db79 ("virtio: allow drivers to
validate features") with fallout in at least block and net.  We have a
partial work-around in commit 2f9a174f918e ("virtio: write back
F_VERSION_1 before validate") which at least lets devices find out which
format should config space have, but this is a partial fix: guests
should not access config space without acknowledging features since
otherwise we'll never be able to change the config space format.

To fix, split finalize_features from virtio_finalize_features and
call finalize_features with all feature bits before validation,
and then - if validation changed any bits - once again after.

Since virtio_finalize_features no longer writes out features
rename it to virtio_features_ok - since that is what it does:
checks that features are ok with the device.

As a side effect, this also reduces the amount of hypervisor accesses -
we now only acknowledge features once unless we are clearing any
features when validating (which is uncommon).

IRC I think that this was more or less always the intent in the spec but
unfortunately the way the spec is worded does not say this explicitly, I
plan to address this at the spec level, too.

Acked-by: Jason Wang <jasowang@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 404123c2db79 ("virtio: allow drivers to validate features")
Fixes: 2f9a174f918e ("virtio: write back F_VERSION_1 before validate")
Cc: "Halil Pasic" <pasic@linux.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virtio/virtio.c       | 39 ++++++++++++++++++++---------------
 include/linux/virtio_config.h |  3 ++-
 2 files changed, 24 insertions(+), 18 deletions(-)

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index ae092fcd67508..441bc057896f5 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -167,14 +167,13 @@ void virtio_add_status(struct virtio_device *dev, unsigned int status)
 }
 EXPORT_SYMBOL_GPL(virtio_add_status);
 
-static int virtio_finalize_features(struct virtio_device *dev)
+/* Do some validation, then set FEATURES_OK */
+static int virtio_features_ok(struct virtio_device *dev)
 {
-	int ret = dev->config->finalize_features(dev);
 	unsigned status;
+	int ret;
 
 	might_sleep();
-	if (ret)
-		return ret;
 
 	ret = arch_has_restricted_virtio_memory_access();
 	if (ret) {
@@ -239,17 +238,6 @@ static int virtio_dev_probe(struct device *_d)
 		driver_features_legacy = driver_features;
 	}
 
-	/*
-	 * Some devices detect legacy solely via F_VERSION_1. Write
-	 * F_VERSION_1 to force LE config space accesses before FEATURES_OK for
-	 * these when needed.
-	 */
-	if (drv->validate && !virtio_legacy_is_little_endian()
-			  && device_features & BIT_ULL(VIRTIO_F_VERSION_1)) {
-		dev->features = BIT_ULL(VIRTIO_F_VERSION_1);
-		dev->config->finalize_features(dev);
-	}
-
 	if (device_features & (1ULL << VIRTIO_F_VERSION_1))
 		dev->features = driver_features & device_features;
 	else
@@ -260,13 +248,26 @@ static int virtio_dev_probe(struct device *_d)
 		if (device_features & (1ULL << i))
 			__virtio_set_bit(dev, i);
 
+	err = dev->config->finalize_features(dev);
+	if (err)
+		goto err;
+
 	if (drv->validate) {
+		u64 features = dev->features;
+
 		err = drv->validate(dev);
 		if (err)
 			goto err;
+
+		/* Did validation change any features? Then write them again. */
+		if (features != dev->features) {
+			err = dev->config->finalize_features(dev);
+			if (err)
+				goto err;
+		}
 	}
 
-	err = virtio_finalize_features(dev);
+	err = virtio_features_ok(dev);
 	if (err)
 		goto err;
 
@@ -437,7 +438,11 @@ int virtio_device_restore(struct virtio_device *dev)
 	/* We have a driver! */
 	virtio_add_status(dev, VIRTIO_CONFIG_S_DRIVER);
 
-	ret = virtio_finalize_features(dev);
+	ret = dev->config->finalize_features(dev);
+	if (ret)
+		goto err;
+
+	ret = virtio_features_ok(dev);
 	if (ret)
 		goto err;
 
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 8519b3ae5d52e..b341dd62aa4da 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -62,8 +62,9 @@ struct virtio_shm_region {
  *	Returns the first 64 feature bits (all we currently need).
  * @finalize_features: confirm what device features we'll be using.
  *	vdev: the virtio_device
- *	This gives the final feature bits for the device: it can change
+ *	This sends the driver feature bits to the device: it can change
  *	the dev->feature bits if it wants.
+ * Note: despite the name this can be called any number of times.
  *	Returns 0 on success or error status
  * @bus_name: return the bus name associated with the device (optional)
  *	vdev: the virtio_device
-- 
GitLab


From d729d4e99fb85f734805ff37dd79f38e7db21c0f Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:23:38 +0000
Subject: [PATCH 4520/4878] watch_queue, pipe: Free watchqueue state after
 clearing pipe ring

commit db8facfc9fafacefe8a835416a6b77c838088f8b upstream.

In free_pipe_info(), free the watchqueue state after clearing the pipe
ring as each pipe ring descriptor has a release function, and in the
case of a notification message, this is watch_queue_pipe_buf_release()
which tries to mark the allocation bitmap that was previously released.

Fix this by moving the put of the pipe's ref on the watch queue to after
the ring has been cleared.  We still need to call watch_queue_clear()
before doing that to make sure that the pipe is disconnected from any
notification sources first.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/pipe.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index d6d4019ba32f5..02d744b517a0a 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -830,10 +830,8 @@ void free_pipe_info(struct pipe_inode_info *pipe)
 	int i;
 
 #ifdef CONFIG_WATCH_QUEUE
-	if (pipe->watch_queue) {
+	if (pipe->watch_queue)
 		watch_queue_clear(pipe->watch_queue);
-		put_watch_queue(pipe->watch_queue);
-	}
 #endif
 
 	(void) account_pipe_buffers(pipe->user, pipe->nr_accounted, 0);
@@ -843,6 +841,10 @@ void free_pipe_info(struct pipe_inode_info *pipe)
 		if (buf->ops)
 			pipe_buf_release(pipe, buf);
 	}
+#ifdef CONFIG_WATCH_QUEUE
+	if (pipe->watch_queue)
+		put_watch_queue(pipe->watch_queue);
+#endif
 	if (pipe->tmp_page)
 		__free_page(pipe->tmp_page);
 	kfree(pipe->bufs);
-- 
GitLab


From 2039900aadba14f438b04d262721ffebc4d33547 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:23:46 +0000
Subject: [PATCH 4521/4878] watch_queue: Fix to release page in ->release()

commit c1853fbadcba1497f4907971e7107888e0714c81 upstream.

When a pipe ring descriptor points to a notification message, the
refcount on the backing page is incremented by the generic get function,
but the release function, which marks the bitmap, doesn't drop the page
ref.

Fix this by calling generic_pipe_buf_release() at the end of
watch_queue_pipe_buf_release().

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/watch_queue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 0ef8f65bd2d71..6ddd860d35cec 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -54,6 +54,7 @@ static void watch_queue_pipe_buf_release(struct pipe_inode_info *pipe,
 	bit += page->index;
 
 	set_bit(bit, wqueue->notes_bitmap);
+	generic_pipe_buf_release(pipe, buf);
 }
 
 // No try_steal function => no stealing
-- 
GitLab


From e2b52ca4988e12ad75aeece53c4f0af849f0d9dc Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:24:08 +0000
Subject: [PATCH 4522/4878] watch_queue: Fix to always request a pow-of-2 pipe
 ring size

commit 96a4d8912b28451cd62825fd7caa0e66e091d938 upstream.

The pipe ring size must always be a power of 2 as the head and tail
pointers are masked off by AND'ing with the size of the ring - 1.
watch_queue_set_size(), however, lets you specify any number of notes
between 1 and 511.  This number is passed through to pipe_resize_ring()
without checking/forcing its alignment.

Fix this by rounding the number of slots required up to the nearest
power of two.  The request is meant to guarantee that at least that many
notifications can be generated before the queue is full, so rounding
down isn't an option, but, alternatively, it may be better to give an
error if we aren't allowed to allocate that much ring space.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/watch_queue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 6ddd860d35cec..d5da8257677e0 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -244,7 +244,7 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes)
 		goto error;
 	}
 
-	ret = pipe_resize_ring(pipe, nr_notes);
+	ret = pipe_resize_ring(pipe, roundup_pow_of_two(nr_notes));
 	if (ret < 0)
 		goto error;
 
-- 
GitLab


From 880acbb718e15e46d37fcde75fa52d5cb4336dca Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:24:22 +0000
Subject: [PATCH 4523/4878] watch_queue: Fix the alloc bitmap size to reflect
 notes allocated

commit 3b4c0371928c17af03e8397ac842346624017ce6 upstream.

Currently, watch_queue_set_size() sets the number of notes available in
wqueue->nr_notes according to the number of notes allocated, but sets
the size of the bitmap to the unrounded number of notes originally asked
for.

Fix this by setting the bitmap size to the number of notes we're
actually going to make available (ie. the number allocated).

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/watch_queue.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index d5da8257677e0..258fa4ca4db46 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -244,6 +244,7 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes)
 		goto error;
 	}
 
+	nr_notes = nr_pages * WATCH_QUEUE_NOTES_PER_PAGE;
 	ret = pipe_resize_ring(pipe, roundup_pow_of_two(nr_notes));
 	if (ret < 0)
 		goto error;
@@ -269,7 +270,7 @@ long watch_queue_set_size(struct pipe_inode_info *pipe, unsigned int nr_notes)
 	wqueue->notes = pages;
 	wqueue->notes_bitmap = bitmap;
 	wqueue->nr_pages = nr_pages;
-	wqueue->nr_notes = nr_pages * WATCH_QUEUE_NOTES_PER_PAGE;
+	wqueue->nr_notes = nr_notes;
 	return 0;
 
 error_p:
-- 
GitLab


From 06ab8444392acdbffb57869d6220fb6654a8c95e Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:24:29 +0000
Subject: [PATCH 4524/4878] watch_queue: Free the alloc bitmap when the
 watch_queue is torn down

commit 7ea1a0124b6da246b5bc8c66cddaafd36acf3ecb upstream.

Free the watch_queue note allocation bitmap when the watch_queue is
destroyed.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/watch_queue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 258fa4ca4db46..77c804d8ef7b4 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -373,6 +373,7 @@ static void __put_watch_queue(struct kref *kref)
 
 	for (i = 0; i < wqueue->nr_pages; i++)
 		__free_page(wqueue->notes[i]);
+	bitmap_free(wqueue->notes_bitmap);
 
 	wfilter = rcu_access_pointer(wqueue->filter);
 	if (wfilter)
-- 
GitLab


From ec03510e0a7784c4fb5c4b3297878a72cca834d5 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:24:36 +0000
Subject: [PATCH 4525/4878] watch_queue: Fix lack of barrier/sync/lock between
 post and read

commit 2ed147f015af2b48f41c6f0b6746aa9ea85c19f3 upstream.

There's nothing to synchronise post_one_notification() versus
pipe_read().  Whilst posting is done under pipe->rd_wait.lock, the
reader only takes pipe->mutex which cannot bar notification posting as
that may need to be made from contexts that cannot sleep.

Fix this by setting pipe->head with a barrier in post_one_notification()
and reading pipe->head with a barrier in pipe_read().

If that's not sufficient, the rd_wait.lock will need to be taken,
possibly in a ->confirm() op so that it only applies to notifications.
The lock would, however, have to be dropped before copy_page_to_iter()
is invoked.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/pipe.c            | 3 ++-
 kernel/watch_queue.c | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index 02d744b517a0a..9f2ca1b1c17ac 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -252,7 +252,8 @@ pipe_read(struct kiocb *iocb, struct iov_iter *to)
 	 */
 	was_full = pipe_full(pipe->head, pipe->tail, pipe->max_usage);
 	for (;;) {
-		unsigned int head = pipe->head;
+		/* Read ->head with a barrier vs post_one_notification() */
+		unsigned int head = smp_load_acquire(&pipe->head);
 		unsigned int tail = pipe->tail;
 		unsigned int mask = pipe->ring_size - 1;
 
diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 77c804d8ef7b4..a904f68c19aa0 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -113,7 +113,7 @@ static bool post_one_notification(struct watch_queue *wqueue,
 	buf->offset = offset;
 	buf->len = len;
 	buf->flags = PIPE_BUF_FLAG_WHOLE;
-	pipe->head = head + 1;
+	smp_store_release(&pipe->head, head + 1); /* vs pipe_read() */
 
 	if (!test_and_clear_bit(note, wqueue->notes_bitmap)) {
 		spin_unlock_irq(&pipe->rd_wait.lock);
-- 
GitLab


From 24d268130e3cbbef0f9ebb1f350e4c6fcdfffb65 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:24:47 +0000
Subject: [PATCH 4526/4878] watch_queue: Make comment about setting ->defunct
 more accurate

commit 4edc0760412b0c4ecefc7e02cb855b310b122825 upstream.

watch_queue_clear() has a comment stating that setting ->defunct to true
preventing new additions as well as preventing notifications.  Whilst
the latter is true, the first bit is superfluous since at the time this
function is called, the pipe cannot be accessed to add new event
sources.

Remove the "new additions" bit from the comment.

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/watch_queue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index a904f68c19aa0..65bd65fec23df 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -569,7 +569,7 @@ void watch_queue_clear(struct watch_queue *wqueue)
 	rcu_read_lock();
 	spin_lock_bh(&wqueue->lock);
 
-	/* Prevent new additions and prevent notifications from happening */
+	/* Prevent new notifications from being stored. */
 	wqueue->defunct = true;
 
 	while (!hlist_empty(&wqueue->watches)) {
-- 
GitLab


From b3444e5b640a41eb35250ac9882cf7ac36fa8f66 Mon Sep 17 00:00:00 2001
From: Ross Philipson <ross.philipson@oracle.com>
Date: Wed, 23 Feb 2022 21:07:35 -0500
Subject: [PATCH 4527/4878] x86/boot: Fix memremap of setup_indirect structures

commit 7228918b34615ef6317edcd9a058a057bc54aa32 upstream.

As documented, the setup_indirect structure is nested inside
the setup_data structures in the setup_data list. The code currently
accesses the fields inside the setup_indirect structure but only
the sizeof(struct setup_data) is being memremapped. No crash
occurred but this is just due to how the area is remapped under the
covers.

Properly memremap both the setup_data and setup_indirect structures
in these cases before accessing them.

Fixes: b3c72fc9a78e ("x86/boot: Introduce setup_indirect")
Signed-off-by: Ross Philipson <ross.philipson@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1645668456-22036-2-git-send-email-ross.philipson@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/e820.c     | 41 ++++++++++++++------
 arch/x86/kernel/kdebugfs.c | 37 +++++++++++++-----
 arch/x86/kernel/ksysfs.c   | 77 ++++++++++++++++++++++++++++++--------
 arch/x86/kernel/setup.c    | 34 +++++++++++++----
 arch/x86/mm/ioremap.c      | 24 ++++++++++--
 5 files changed, 166 insertions(+), 47 deletions(-)

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 629c4994f1654..7f57110f958e1 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -995,8 +995,10 @@ early_param("memmap", parse_memmap_opt);
  */
 void __init e820__reserve_setup_data(void)
 {
+	struct setup_indirect *indirect;
 	struct setup_data *data;
-	u64 pa_data;
+	u64 pa_data, pa_next;
+	u32 len;
 
 	pa_data = boot_params.hdr.setup_data;
 	if (!pa_data)
@@ -1004,6 +1006,14 @@ void __init e820__reserve_setup_data(void)
 
 	while (pa_data) {
 		data = early_memremap(pa_data, sizeof(*data));
+		if (!data) {
+			pr_warn("e820: failed to memremap setup_data entry\n");
+			return;
+		}
+
+		len = sizeof(*data);
+		pa_next = data->next;
+
 		e820__range_update(pa_data, sizeof(*data)+data->len, E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
 
 		/*
@@ -1015,18 +1025,27 @@ void __init e820__reserve_setup_data(void)
 						 sizeof(*data) + data->len,
 						 E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
 
-		if (data->type == SETUP_INDIRECT &&
-		    ((struct setup_indirect *)data->data)->type != SETUP_INDIRECT) {
-			e820__range_update(((struct setup_indirect *)data->data)->addr,
-					   ((struct setup_indirect *)data->data)->len,
-					   E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
-			e820__range_update_kexec(((struct setup_indirect *)data->data)->addr,
-						 ((struct setup_indirect *)data->data)->len,
-						 E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
+		if (data->type == SETUP_INDIRECT) {
+			len += data->len;
+			early_memunmap(data, sizeof(*data));
+			data = early_memremap(pa_data, len);
+			if (!data) {
+				pr_warn("e820: failed to memremap indirect setup_data\n");
+				return;
+			}
+
+			indirect = (struct setup_indirect *)data->data;
+
+			if (indirect->type != SETUP_INDIRECT) {
+				e820__range_update(indirect->addr, indirect->len,
+						   E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
+				e820__range_update_kexec(indirect->addr, indirect->len,
+							 E820_TYPE_RAM, E820_TYPE_RESERVED_KERN);
+			}
 		}
 
-		pa_data = data->next;
-		early_memunmap(data, sizeof(*data));
+		pa_data = pa_next;
+		early_memunmap(data, len);
 	}
 
 	e820__update_table(e820_table);
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index 64b6da95af984..e2e89bebcbc32 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -88,11 +88,13 @@ create_setup_data_node(struct dentry *parent, int no,
 
 static int __init create_setup_data_nodes(struct dentry *parent)
 {
+	struct setup_indirect *indirect;
 	struct setup_data_node *node;
 	struct setup_data *data;
-	int error;
+	u64 pa_data, pa_next;
 	struct dentry *d;
-	u64 pa_data;
+	int error;
+	u32 len;
 	int no = 0;
 
 	d = debugfs_create_dir("setup_data", parent);
@@ -112,12 +114,29 @@ static int __init create_setup_data_nodes(struct dentry *parent)
 			error = -ENOMEM;
 			goto err_dir;
 		}
-
-		if (data->type == SETUP_INDIRECT &&
-		    ((struct setup_indirect *)data->data)->type != SETUP_INDIRECT) {
-			node->paddr = ((struct setup_indirect *)data->data)->addr;
-			node->type  = ((struct setup_indirect *)data->data)->type;
-			node->len   = ((struct setup_indirect *)data->data)->len;
+		pa_next = data->next;
+
+		if (data->type == SETUP_INDIRECT) {
+			len = sizeof(*data) + data->len;
+			memunmap(data);
+			data = memremap(pa_data, len, MEMREMAP_WB);
+			if (!data) {
+				kfree(node);
+				error = -ENOMEM;
+				goto err_dir;
+			}
+
+			indirect = (struct setup_indirect *)data->data;
+
+			if (indirect->type != SETUP_INDIRECT) {
+				node->paddr = indirect->addr;
+				node->type  = indirect->type;
+				node->len   = indirect->len;
+			} else {
+				node->paddr = pa_data;
+				node->type  = data->type;
+				node->len   = data->len;
+			}
 		} else {
 			node->paddr = pa_data;
 			node->type  = data->type;
@@ -125,7 +144,7 @@ static int __init create_setup_data_nodes(struct dentry *parent)
 		}
 
 		create_setup_data_node(d, no, node);
-		pa_data = data->next;
+		pa_data = pa_next;
 
 		memunmap(data);
 		no++;
diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index d0a19121c6a4f..257892fcefa79 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -91,26 +91,41 @@ static int get_setup_data_paddr(int nr, u64 *paddr)
 
 static int __init get_setup_data_size(int nr, size_t *size)
 {
-	int i = 0;
+	u64 pa_data = boot_params.hdr.setup_data, pa_next;
+	struct setup_indirect *indirect;
 	struct setup_data *data;
-	u64 pa_data = boot_params.hdr.setup_data;
+	int i = 0;
+	u32 len;
 
 	while (pa_data) {
 		data = memremap(pa_data, sizeof(*data), MEMREMAP_WB);
 		if (!data)
 			return -ENOMEM;
+		pa_next = data->next;
+
 		if (nr == i) {
-			if (data->type == SETUP_INDIRECT &&
-			    ((struct setup_indirect *)data->data)->type != SETUP_INDIRECT)
-				*size = ((struct setup_indirect *)data->data)->len;
-			else
+			if (data->type == SETUP_INDIRECT) {
+				len = sizeof(*data) + data->len;
+				memunmap(data);
+				data = memremap(pa_data, len, MEMREMAP_WB);
+				if (!data)
+					return -ENOMEM;
+
+				indirect = (struct setup_indirect *)data->data;
+
+				if (indirect->type != SETUP_INDIRECT)
+					*size = indirect->len;
+				else
+					*size = data->len;
+			} else {
 				*size = data->len;
+			}
 
 			memunmap(data);
 			return 0;
 		}
 
-		pa_data = data->next;
+		pa_data = pa_next;
 		memunmap(data);
 		i++;
 	}
@@ -120,9 +135,11 @@ static int __init get_setup_data_size(int nr, size_t *size)
 static ssize_t type_show(struct kobject *kobj,
 			 struct kobj_attribute *attr, char *buf)
 {
+	struct setup_indirect *indirect;
+	struct setup_data *data;
 	int nr, ret;
 	u64 paddr;
-	struct setup_data *data;
+	u32 len;
 
 	ret = kobj_to_setup_data_nr(kobj, &nr);
 	if (ret)
@@ -135,10 +152,20 @@ static ssize_t type_show(struct kobject *kobj,
 	if (!data)
 		return -ENOMEM;
 
-	if (data->type == SETUP_INDIRECT)
-		ret = sprintf(buf, "0x%x\n", ((struct setup_indirect *)data->data)->type);
-	else
+	if (data->type == SETUP_INDIRECT) {
+		len = sizeof(*data) + data->len;
+		memunmap(data);
+		data = memremap(paddr, len, MEMREMAP_WB);
+		if (!data)
+			return -ENOMEM;
+
+		indirect = (struct setup_indirect *)data->data;
+
+		ret = sprintf(buf, "0x%x\n", indirect->type);
+	} else {
 		ret = sprintf(buf, "0x%x\n", data->type);
+	}
+
 	memunmap(data);
 	return ret;
 }
@@ -149,9 +176,10 @@ static ssize_t setup_data_data_read(struct file *fp,
 				    char *buf,
 				    loff_t off, size_t count)
 {
+	struct setup_indirect *indirect;
+	struct setup_data *data;
 	int nr, ret = 0;
 	u64 paddr, len;
-	struct setup_data *data;
 	void *p;
 
 	ret = kobj_to_setup_data_nr(kobj, &nr);
@@ -165,10 +193,27 @@ static ssize_t setup_data_data_read(struct file *fp,
 	if (!data)
 		return -ENOMEM;
 
-	if (data->type == SETUP_INDIRECT &&
-	    ((struct setup_indirect *)data->data)->type != SETUP_INDIRECT) {
-		paddr = ((struct setup_indirect *)data->data)->addr;
-		len = ((struct setup_indirect *)data->data)->len;
+	if (data->type == SETUP_INDIRECT) {
+		len = sizeof(*data) + data->len;
+		memunmap(data);
+		data = memremap(paddr, len, MEMREMAP_WB);
+		if (!data)
+			return -ENOMEM;
+
+		indirect = (struct setup_indirect *)data->data;
+
+		if (indirect->type != SETUP_INDIRECT) {
+			paddr = indirect->addr;
+			len = indirect->len;
+		} else {
+			/*
+			 * Even though this is technically undefined, return
+			 * the data as though it is a normal setup_data struct.
+			 * This will at least allow it to be inspected.
+			 */
+			paddr += sizeof(*data);
+			len = data->len;
+		}
 	} else {
 		paddr += sizeof(*data);
 		len = data->len;
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 28c89fce0dab8..065152d9265e4 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -371,21 +371,41 @@ static void __init parse_setup_data(void)
 
 static void __init memblock_x86_reserve_range_setup_data(void)
 {
+	struct setup_indirect *indirect;
 	struct setup_data *data;
-	u64 pa_data;
+	u64 pa_data, pa_next;
+	u32 len;
 
 	pa_data = boot_params.hdr.setup_data;
 	while (pa_data) {
 		data = early_memremap(pa_data, sizeof(*data));
+		if (!data) {
+			pr_warn("setup: failed to memremap setup_data entry\n");
+			return;
+		}
+
+		len = sizeof(*data);
+		pa_next = data->next;
+
 		memblock_reserve(pa_data, sizeof(*data) + data->len);
 
-		if (data->type == SETUP_INDIRECT &&
-		    ((struct setup_indirect *)data->data)->type != SETUP_INDIRECT)
-			memblock_reserve(((struct setup_indirect *)data->data)->addr,
-					 ((struct setup_indirect *)data->data)->len);
+		if (data->type == SETUP_INDIRECT) {
+			len += data->len;
+			early_memunmap(data, sizeof(*data));
+			data = early_memremap(pa_data, len);
+			if (!data) {
+				pr_warn("setup: failed to memremap indirect setup_data\n");
+				return;
+			}
 
-		pa_data = data->next;
-		early_memunmap(data, sizeof(*data));
+			indirect = (struct setup_indirect *)data->data;
+
+			if (indirect->type != SETUP_INDIRECT)
+				memblock_reserve(indirect->addr, indirect->len);
+		}
+
+		pa_data = pa_next;
+		early_memunmap(data, len);
 	}
 }
 
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 356b746dfbe7a..5b003675b0e43 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -633,6 +633,7 @@ static bool memremap_is_efi_data(resource_size_t phys_addr,
 static bool memremap_is_setup_data(resource_size_t phys_addr,
 				   unsigned long size)
 {
+	struct setup_indirect *indirect;
 	struct setup_data *data;
 	u64 paddr, paddr_next;
 
@@ -645,6 +646,10 @@ static bool memremap_is_setup_data(resource_size_t phys_addr,
 
 		data = memremap(paddr, sizeof(*data),
 				MEMREMAP_WB | MEMREMAP_DEC);
+		if (!data) {
+			pr_warn("failed to memremap setup_data entry\n");
+			return false;
+		}
 
 		paddr_next = data->next;
 		len = data->len;
@@ -654,10 +659,21 @@ static bool memremap_is_setup_data(resource_size_t phys_addr,
 			return true;
 		}
 
-		if (data->type == SETUP_INDIRECT &&
-		    ((struct setup_indirect *)data->data)->type != SETUP_INDIRECT) {
-			paddr = ((struct setup_indirect *)data->data)->addr;
-			len = ((struct setup_indirect *)data->data)->len;
+		if (data->type == SETUP_INDIRECT) {
+			memunmap(data);
+			data = memremap(paddr, sizeof(*data) + len,
+					MEMREMAP_WB | MEMREMAP_DEC);
+			if (!data) {
+				pr_warn("failed to memremap indirect setup_data\n");
+				return false;
+			}
+
+			indirect = (struct setup_indirect *)data->data;
+
+			if (indirect->type != SETUP_INDIRECT) {
+				paddr = indirect->addr;
+				len = indirect->len;
+			}
 		}
 
 		memunmap(data);
-- 
GitLab


From 29f6f35001279fad6a1e606eeb41e56b9db32082 Mon Sep 17 00:00:00 2001
From: Ross Philipson <ross.philipson@oracle.com>
Date: Wed, 23 Feb 2022 21:07:36 -0500
Subject: [PATCH 4528/4878] x86/boot: Add setup_indirect support in
 early_memremap_is_setup_data()

commit 445c1470b6ef96440e7cfc42dfc160f5004fd149 upstream.

The x86 boot documentation describes the setup_indirect structures and
how they are used. Only one of the two functions in ioremap.c that needed
to be modified to be aware of the introduction of setup_indirect
functionality was updated. Adds comparable support to the other function
where it was missing.

Fixes: b3c72fc9a78e ("x86/boot: Introduce setup_indirect")
Signed-off-by: Ross Philipson <ross.philipson@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1645668456-22036-3-git-send-email-ross.philipson@oracle.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/mm/ioremap.c | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 5b003675b0e43..91e61dbba3e0c 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -694,22 +694,51 @@ static bool memremap_is_setup_data(resource_size_t phys_addr,
 static bool __init early_memremap_is_setup_data(resource_size_t phys_addr,
 						unsigned long size)
 {
+	struct setup_indirect *indirect;
 	struct setup_data *data;
 	u64 paddr, paddr_next;
 
 	paddr = boot_params.hdr.setup_data;
 	while (paddr) {
-		unsigned int len;
+		unsigned int len, size;
 
 		if (phys_addr == paddr)
 			return true;
 
 		data = early_memremap_decrypted(paddr, sizeof(*data));
+		if (!data) {
+			pr_warn("failed to early memremap setup_data entry\n");
+			return false;
+		}
+
+		size = sizeof(*data);
 
 		paddr_next = data->next;
 		len = data->len;
 
-		early_memunmap(data, sizeof(*data));
+		if ((phys_addr > paddr) && (phys_addr < (paddr + len))) {
+			early_memunmap(data, sizeof(*data));
+			return true;
+		}
+
+		if (data->type == SETUP_INDIRECT) {
+			size += len;
+			early_memunmap(data, sizeof(*data));
+			data = early_memremap_decrypted(paddr, size);
+			if (!data) {
+				pr_warn("failed to early memremap indirect setup_data\n");
+				return false;
+			}
+
+			indirect = (struct setup_indirect *)data->data;
+
+			if (indirect->type != SETUP_INDIRECT) {
+				paddr = indirect->addr;
+				len = indirect->len;
+			}
+		}
+
+		early_memunmap(data, size);
 
 		if ((phys_addr > paddr) && (phys_addr < (paddr + len)))
 			return true;
-- 
GitLab


From b297cf764d8c22b8b775f540b13c85f1675dc945 Mon Sep 17 00:00:00 2001
From: Li Huafei <lihuafei1@huawei.com>
Date: Thu, 10 Mar 2022 20:09:15 +0800
Subject: [PATCH 4529/4878] x86/traps: Mark do_int3() NOKPROBE_SYMBOL

commit a365a65f9ca1ceb9cf1ac29db4a4f51df7c507ad upstream.

Since kprobe_int3_handler() is called in do_int3(), probing do_int3()
can cause a breakpoint recursion and crash the kernel. Therefore,
do_int3() should be marked as NOKPROBE_SYMBOL.

Fixes: 21e28290b317 ("x86/traps: Split int3 handler up")
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220310120915.63349-1-lihuafei1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/traps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 2d4ecd50e69b8..2a39a2df6f43e 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -651,6 +651,7 @@ static bool do_int3(struct pt_regs *regs)
 
 	return res == NOTIFY_STOP;
 }
+NOKPROBE_SYMBOL(do_int3);
 
 static void do_int3_user(struct pt_regs *regs)
 {
-- 
GitLab


From 6b1249db9e1c3be98fa8cae2361f4ed092906d0f Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Mon, 7 Jun 2021 12:15:24 -0700
Subject: [PATCH 4530/4878] ext4: add check to prevent attempting to resize an
 fs with sparse_super2

commit b1489186cc8391e0c1e342f9fbc3eedf6b944c61 upstream.

The in-kernel ext4 resize code doesn't support filesystem with the
sparse_super2 feature. It fails with errors like this and doesn't finish
the resize:
EXT4-fs (loop0): resizing filesystem from 16640 to 7864320 blocks
EXT4-fs warning (device loop0): verify_reserved_gdb:760: reserved GDT 2 missing grp 1 (32770)
EXT4-fs warning (device loop0): ext4_resize_fs:2111: error (-22) occurred during file system resize
EXT4-fs (loop0): resized filesystem to 2097152

To reproduce:
mkfs.ext4 -b 4096 -I 256 -J size=32 -E resize=$((256*1024*1024)) -O sparse_super2 ext4.img 65M
truncate -s 30G ext4.img
mount ext4.img /mnt
python3 -c 'import fcntl, os, struct ; fd = os.open("/mnt", os.O_RDONLY | os.O_DIRECTORY) ; fcntl.ioctl(fd, 0x40086610, struct.pack("Q", 30 * 1024 * 1024 * 1024 // 4096), False) ; os.close(fd)'
dmesg | tail
e2fsck ext4.img

The userspace resize2fs tool has a check for this case: it checks if the
filesystem has sparse_super2 set and if the kernel provides
/sys/fs/ext4/features/sparse_super2. However, the former check requires
manually reading and parsing the filesystem superblock.

Detect this case in ext4_resize_begin and error out early with a clear
error message.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: https://lore.kernel.org/r/74b8ae78405270211943cd7393e65586c5faeed1.1623093259.git.josh@joshtriplett.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ext4/resize.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 928700d57eb67..6513079c728be 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -74,6 +74,11 @@ int ext4_resize_begin(struct super_block *sb)
 		return -EPERM;
 	}
 
+	if (ext4_has_feature_sparse_super2(sb)) {
+		ext4_msg(sb, KERN_ERR, "Online resizing not supported with sparse_super2");
+		return -EOPNOTSUPP;
+	}
+
 	if (test_and_set_bit_lock(EXT4_FLAGS_RESIZING,
 				  &EXT4_SB(sb)->s_ext4_flags))
 		ret = -EBUSY;
-- 
GitLab


From 8bb5b72dbd9ab91edf3ae616e7907c83c259beb0 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 11 Mar 2022 17:13:17 +0000
Subject: [PATCH 4531/4878] ARM: fix Thumb2 regression with Spectre BHB

commit 6c7cb60bff7aec24b834343ff433125f469886a3 upstream.

When building for Thumb2, the vectors make use of a local label. Sadly,
the Spectre BHB code also uses a local label with the same number which
results in the Thumb2 reference pointing at the wrong place. Fix this
by changing the number used for the Spectre BHB local label.

Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/kernel/entry-armv.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 3cbd35c82a66c..c3ebe3584103b 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -1043,9 +1043,9 @@ vector_bhb_loop8_\name:
 
 	@ bhb workaround
 	mov	r0, #8
-1:	b	. + 4
+3:	b	. + 4
 	subs	r0, r0, #1
-	bne	1b
+	bne	3b
 	dsb
 	isb
 	b	2b
-- 
GitLab


From 648895da69ced90ca770fd941c3d9479a9d72c16 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 11 Mar 2022 13:23:31 +0000
Subject: [PATCH 4532/4878] watch_queue: Fix filter limit check

commit c993ee0f9f81caf5767a50d1faeba39a0dc82af2 upstream.

In watch_queue_set_filter(), there are a couple of places where we check
that the filter type value does not exceed what the type_filter bitmap
can hold.  One place calculates the number of bits by:

   if (tf[i].type >= sizeof(wfilter->type_filter) * 8)

which is fine, but the second does:

   if (tf[i].type >= sizeof(wfilter->type_filter) * BITS_PER_LONG)

which is not.  This can lead to a couple of out-of-bounds writes due to
a too-large type:

 (1) __set_bit() on wfilter->type_filter
 (2) Writing more elements in wfilter->filters[] than we allocated.

Fix this by just using the proper WATCH_TYPE__NR instead, which is the
number of types we actually know about.

The bug may cause an oops looking something like:

  BUG: KASAN: slab-out-of-bounds in watch_queue_set_filter+0x659/0x740
  Write of size 4 at addr ffff88800d2c66bc by task watch_queue_oob/611
  ...
  Call Trace:
   <TASK>
   dump_stack_lvl+0x45/0x59
   print_address_description.constprop.0+0x1f/0x150
   ...
   kasan_report.cold+0x7f/0x11b
   ...
   watch_queue_set_filter+0x659/0x740
   ...
   __x64_sys_ioctl+0x127/0x190
   do_syscall_64+0x43/0x90
   entry_SYSCALL_64_after_hwframe+0x44/0xae

  Allocated by task 611:
   kasan_save_stack+0x1e/0x40
   __kasan_kmalloc+0x81/0xa0
   watch_queue_set_filter+0x23a/0x740
   __x64_sys_ioctl+0x127/0x190
   do_syscall_64+0x43/0x90
   entry_SYSCALL_64_after_hwframe+0x44/0xae

  The buggy address belongs to the object at ffff88800d2c66a0
   which belongs to the cache kmalloc-32 of size 32
  The buggy address is located 28 bytes inside of
   32-byte region [ffff88800d2c66a0, ffff88800d2c66c0)

Fixes: c73be61cede5 ("pipe: Add general notification queue support")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/watch_queue.h | 3 ++-
 kernel/watch_queue.c        | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/watch_queue.h b/include/linux/watch_queue.h
index c994d1b2cdbaa..3b9a40ae8bdba 100644
--- a/include/linux/watch_queue.h
+++ b/include/linux/watch_queue.h
@@ -28,7 +28,8 @@ struct watch_type_filter {
 struct watch_filter {
 	union {
 		struct rcu_head	rcu;
-		unsigned long	type_filter[2];	/* Bitmask of accepted types */
+		/* Bitmask of accepted types */
+		DECLARE_BITMAP(type_filter, WATCH_TYPE__NR);
 	};
 	u32			nr_filters;	/* Number of filters */
 	struct watch_type_filter filters[];
diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 65bd65fec23df..e3f144d960261 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -322,7 +322,7 @@ long watch_queue_set_filter(struct pipe_inode_info *pipe,
 		    tf[i].info_mask & WATCH_INFO_LENGTH)
 			goto err_filter;
 		/* Ignore any unknown types */
-		if (tf[i].type >= sizeof(wfilter->type_filter) * 8)
+		if (tf[i].type >= WATCH_TYPE__NR)
 			continue;
 		nr_filter++;
 	}
@@ -338,7 +338,7 @@ long watch_queue_set_filter(struct pipe_inode_info *pipe,
 
 	q = wfilter->filters;
 	for (i = 0; i < filter.nr_filters; i++) {
-		if (tf[i].type >= sizeof(wfilter->type_filter) * BITS_PER_LONG)
+		if (tf[i].type >= WATCH_TYPE__NR)
 			continue;
 
 		q->type			= tf[i].type;
-- 
GitLab


From 327f1e7d813c77eceadafbdc498f5eb680fd9fb2 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 16 Mar 2022 14:16:03 +0100
Subject: [PATCH 4533/4878] Linux 5.10.106

Link: https://lore.kernel.org/r/20220314112737.929694832@linuxfoundation.org
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hulk Robot <hulkrobot@huawei.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index ea665736db040..7b0dffadf6a89 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 105
+SUBLEVEL = 106
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From 3db533198854bec2d8f2bc39c9b64e4fc42b59f9 Mon Sep 17 00:00:00 2001
From: Siddharth Kapoor <ksiddharth@google.com>
Date: Wed, 16 Mar 2022 13:31:27 +0800
Subject: [PATCH 4534/4878] ANDROID: Update the ABI symbol list

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function void rt_mutex_destroy(rt_mutex*)'

Bug: 220942030
Signed-off-by: Siddharth Kapoor <ksiddharth@google.com>
Change-Id: I8d7cecceb091d1db27b99283024da2af846e8df2
---
 android/abi_gki_aarch64.xml     | 90 +++++++++++++--------------------
 android/abi_gki_aarch64_generic |  2 +
 2 files changed, 37 insertions(+), 55 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 16fcde74d857b..7b166ac221616 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -2716,6 +2716,7 @@
       <elf-symbol name='rproc_get_by_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaba85de7'/>
       <elf-symbol name='rproc_remove_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd23d58c7'/>
       <elf-symbol name='rproc_report_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc80391f'/>
+      <elf-symbol name='rt_mutex_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a7a4e43'/>
       <elf-symbol name='rt_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa9e08a'/>
       <elf-symbol name='rt_mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdce6bd63'/>
       <elf-symbol name='rt_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb81ff86'/>
@@ -60210,20 +60211,7 @@
           <var-decl name='private_value' type-id='7359adad' visibility='default' filepath='include/sound/control.h' line='56' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='udp_table' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/net/udp.h' line='72' column='1' id='9a516b13'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='hash' type-id='9cc41107' visibility='default' filepath='include/net/udp.h' line='73' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='hash2' type-id='9cc41107' visibility='default' filepath='include/net/udp.h' line='74' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='mask' type-id='f0981eeb' visibility='default' filepath='include/net/udp.h' line='75' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='160'>
-          <var-decl name='log' type-id='f0981eeb' visibility='default' filepath='include/net/udp.h' line='76' column='1'/>
-        </data-member>
-      </class-decl>
+      <class-decl name='udp_table' is-struct='yes' visibility='default' is-declaration-only='yes' id='9a516b13'/>
       <pointer-type-def type-id='6661a698' size-in-bits='64' id='9a537bbe'/>
       <function-type size-in-bits='64' id='9a54e634'>
         <parameter type-id='8898134d'/>
@@ -60946,7 +60934,6 @@
       <array-type-def dimensions='1' type-id='00205383' size-in-bits='3072' id='9cc39ce1'>
         <subrange length='24' type-id='7ff19f0f' id='fdd3342b'/>
       </array-type-def>
-      <pointer-type-def type-id='fa07ab8f' size-in-bits='64' id='9cc41107'/>
       <class-decl name='snd_kcontrol_volatile' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/sound/control.h' line='59' column='1' id='9cd807f4'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='owner' type-id='ed27ccc9' visibility='default' filepath='include/sound/control.h' line='60' column='1'/>
@@ -102802,17 +102789,6 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='91f77fa3' size-in-bits='64' id='fa058983'/>
-      <class-decl name='udp_hslot' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/net/udp.h' line='58' column='1' id='fa07ab8f'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/udp.h' line='59' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='count' type-id='95e97e5e' visibility='default' filepath='include/net/udp.h' line='60' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='96'>
-          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/net/udp.h' line='61' column='1'/>
-        </data-member>
-      </class-decl>
       <array-type-def dimensions='2' type-id='8f048e17' size-in-bits='304' id='fa0a1f4c'>
         <subrange length='2' type-id='7ff19f0f' id='52efc4ef'/>
         <subrange length='19' type-id='7ff19f0f' id='448ee30f'/>
@@ -105821,9 +105797,9 @@
         <parameter type-id='b59d7dce' name='recsize' filepath='lib/kfifo.c' line='524' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__kmalloc' mangled-name='__kmalloc' filepath='mm/slub.c' line='4014' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kmalloc'>
-        <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='4014' column='1'/>
-        <parameter type-id='3eb7c31c' name='flags' filepath='mm/slub.c' line='4014' column='1'/>
+      <function-decl name='__kmalloc' mangled-name='__kmalloc' filepath='mm/slub.c' line='4016' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kmalloc'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='4016' column='1'/>
+        <parameter type-id='3eb7c31c' name='flags' filepath='mm/slub.c' line='4016' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='__kthread_init_worker' mangled-name='__kthread_init_worker' filepath='kernel/kthread.c' line='690' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__kthread_init_worker'>
@@ -111290,20 +111266,20 @@
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='dma_contiguous_default_area' type-id='6f67b38a' mangled-name='dma_contiguous_default_area' visibility='default' filepath='kernel/dma/contiguous.c' line='60' column='1' elf-symbol-id='dma_contiguous_default_area'/>
-      <function-decl name='dma_direct_alloc' mangled-name='dma_direct_alloc' filepath='kernel/dma/direct.c' line='153' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_alloc'>
-        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/direct.c' line='153' column='1'/>
-        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/direct.c' line='153' column='1'/>
-        <parameter type-id='e835b5d8' name='dma_handle' filepath='kernel/dma/direct.c' line='154' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='kernel/dma/direct.c' line='154' column='1'/>
-        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/direct.c' line='154' column='1'/>
+      <function-decl name='dma_direct_alloc' mangled-name='dma_direct_alloc' filepath='kernel/dma/direct.c' line='155' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_alloc'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/direct.c' line='155' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/direct.c' line='155' column='1'/>
+        <parameter type-id='e835b5d8' name='dma_handle' filepath='kernel/dma/direct.c' line='156' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='kernel/dma/direct.c' line='156' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/direct.c' line='156' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='dma_direct_free' mangled-name='dma_direct_free' filepath='kernel/dma/direct.c' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_free'>
-        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/direct.c' line='269' column='1'/>
-        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/direct.c' line='269' column='1'/>
-        <parameter type-id='eaa32e2f' name='cpu_addr' filepath='kernel/dma/direct.c' line='270' column='1'/>
-        <parameter type-id='cf29c9b3' name='dma_addr' filepath='kernel/dma/direct.c' line='270' column='1'/>
-        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/direct.c' line='270' column='1'/>
+      <function-decl name='dma_direct_free' mangled-name='dma_direct_free' filepath='kernel/dma/direct.c' line='271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_direct_free'>
+        <parameter type-id='fa0b179b' name='dev' filepath='kernel/dma/direct.c' line='271' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='kernel/dma/direct.c' line='271' column='1'/>
+        <parameter type-id='eaa32e2f' name='cpu_addr' filepath='kernel/dma/direct.c' line='272' column='1'/>
+        <parameter type-id='cf29c9b3' name='dma_addr' filepath='kernel/dma/direct.c' line='272' column='1'/>
+        <parameter type-id='7359adad' name='attrs' filepath='kernel/dma/direct.c' line='272' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='dma_fence_add_callback' mangled-name='dma_fence_add_callback' filepath='drivers/dma-buf/dma-fence.c' line='612' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='dma_fence_add_callback'>
@@ -115780,8 +115756,8 @@
         <parameter type-id='45c08bac' name='how' filepath='net/socket.c' line='3554' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='kfree' mangled-name='kfree' filepath='mm/slub.c' line='4168' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree'>
-        <parameter type-id='eaa32e2f' name='x' filepath='mm/slub.c' line='4168' column='1'/>
+      <function-decl name='kfree' mangled-name='kfree' filepath='mm/slub.c' line='4170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree'>
+        <parameter type-id='eaa32e2f' name='x' filepath='mm/slub.c' line='4170' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kfree_const' mangled-name='kfree_const' filepath='mm/util.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kfree_const'>
@@ -115829,15 +115805,15 @@
         <parameter type-id='f0981eeb' name='order' filepath='mm/slab_common.c' line='857' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='kmem_cache_alloc' mangled-name='kmem_cache_alloc' filepath='mm/slub.c' line='2956' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc'>
-        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='2956' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfpflags' filepath='mm/slub.c' line='2956' column='1'/>
+      <function-decl name='kmem_cache_alloc' mangled-name='kmem_cache_alloc' filepath='mm/slub.c' line='2958' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='2958' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfpflags' filepath='mm/slub.c' line='2958' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='kmem_cache_alloc_trace' mangled-name='kmem_cache_alloc_trace' filepath='mm/slub.c' line='2968' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc_trace'>
-        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='2968' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfpflags' filepath='mm/slub.c' line='2968' column='1'/>
-        <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='2968' column='1'/>
+      <function-decl name='kmem_cache_alloc_trace' mangled-name='kmem_cache_alloc_trace' filepath='mm/slub.c' line='2970' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_alloc_trace'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='2970' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfpflags' filepath='mm/slub.c' line='2970' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/slub.c' line='2970' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='kmem_cache_create' mangled-name='kmem_cache_create' filepath='mm/slab_common.c' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_create'>
@@ -115862,9 +115838,9 @@
         <parameter type-id='f3b4aca8' name='s' filepath='mm/slab_common.c' line='487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='kmem_cache_free' mangled-name='kmem_cache_free' filepath='mm/slub.c' line='3212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_free'>
-        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='3212' column='1'/>
-        <parameter type-id='eaa32e2f' name='x' filepath='mm/slub.c' line='3212' column='1'/>
+      <function-decl name='kmem_cache_free' mangled-name='kmem_cache_free' filepath='mm/slub.c' line='3214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmem_cache_free'>
+        <parameter type-id='f3b4aca8' name='s' filepath='mm/slub.c' line='3214' column='1'/>
+        <parameter type-id='eaa32e2f' name='x' filepath='mm/slub.c' line='3214' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='kmemdup' mangled-name='kmemdup' filepath='mm/util.c' line='127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kmemdup'>
@@ -118260,8 +118236,8 @@
         <parameter type-id='f23e2572' name='task' filepath='kernel/events/core.c' line='9487' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pfn_valid' mangled-name='pfn_valid' filepath='arch/arm64/mm/init.c' line='221' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pfn_valid'>
-        <parameter type-id='7359adad' name='pfn' filepath='arch/arm64/mm/init.c' line='221' column='1'/>
+      <function-decl name='pfn_valid' mangled-name='pfn_valid' filepath='arch/arm64/mm/init.c' line='239' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pfn_valid'>
+        <parameter type-id='7359adad' name='pfn' filepath='arch/arm64/mm/init.c' line='239' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='phy_calibrate' mangled-name='phy_calibrate' filepath='drivers/phy/phy-core.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='phy_calibrate'>
@@ -119704,6 +119680,10 @@
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='rps_needed' type-id='237c0d27' mangled-name='rps_needed' visibility='default' filepath='net/core/dev.c' line='4289' column='1' elf-symbol-id='rps_needed'/>
+      <function-decl name='rt_mutex_destroy' mangled-name='rt_mutex_destroy' filepath='kernel/locking/rtmutex.c' line='1658' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rt_mutex_destroy'>
+        <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1658' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
       <function-decl name='rt_mutex_lock' mangled-name='rt_mutex_lock' filepath='kernel/locking/rtmutex.c' line='1496' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='rt_mutex_lock'>
         <parameter type-id='3992a90f' name='lock' filepath='kernel/locking/rtmutex.c' line='1496' column='1'/>
         <return type-id='48b5725f'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index db115f2488f31..14968c013c61a 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1345,6 +1345,7 @@
   of_device_is_compatible
   of_dma_controller_free
   of_dma_controller_register
+  of_dma_is_coherent
   of_drm_find_bridge
   of_drm_find_panel
   of_find_backlight_by_node
@@ -1753,6 +1754,7 @@
   rtc_tm_to_time64
   rtc_update_irq
   rtc_valid_tm
+  rt_mutex_destroy
   __rt_mutex_init
   rt_mutex_lock
   rt_mutex_trylock
-- 
GitLab


From 07ab4b09ea8390fce05741afd0a9b203dc7d8129 Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Tue, 8 Mar 2022 20:18:20 +0100
Subject: [PATCH 4535/4878] UPSTREAM: ARM: fix build error when BPF_SYSCALL is
 disabled

commit 330f4c53d3c2d8b11d86ec03a964b86dc81452f5 upstream.

It was missing a semicolon.

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Fixes: 25875aa71dfe ("ARM: include unprivileged BPF status in Spectre V2 reporting").
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit a330601c637b6d960163766150937ac2b73db53e)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie7614bc0eacecd509ae476e4044536ceb39f1d54
---
 arch/arm/kernel/spectre.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/spectre.c b/arch/arm/kernel/spectre.c
index e7fea962d632c..0dcefc36fb7a0 100644
--- a/arch/arm/kernel/spectre.c
+++ b/arch/arm/kernel/spectre.c
@@ -10,7 +10,7 @@ static bool _unprivileged_ebpf_enabled(void)
 #ifdef CONFIG_BPF_SYSCALL
 	return !sysctl_unprivileged_bpf_disabled;
 #else
-	return false
+	return false;
 #endif
 }
 
-- 
GitLab


From 25134cd0e48065e0c8c6ab1eec90fac44fc5dc83 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Wed, 9 Mar 2022 19:08:42 +0000
Subject: [PATCH 4536/4878] UPSTREAM: ARM: fix co-processor register typo

commit 33970b031dc4653cc9dc80f2886976706c4c8ef1 upstream.

In the recent Spectre BHB patches, there was a typo that is only
exposed in certain configurations: mcr p15,0,XX,c7,r5,4 should have
been mcr p15,0,XX,c7,c5,4

Reported-by: kernel test robot <lkp@intel.com>
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 1749b553d73ba9191b7e4dff5864b6a1f18ac843)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie941d37cac28fead32d2f3ca9a31038ec3efaa79
---
 arch/arm/include/asm/assembler.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 5cce98ae030e9..8ff20f9b06bad 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -113,7 +113,7 @@
 	.endm
 
 	.macro	isb, args
-	mcr	p15, 0, r0, c7, r5, 4
+	mcr	p15, 0, r0, c7, c5, 4
 	.endm
 #endif
 
-- 
GitLab


From e4359d9443592aa35c69b022dbd0183289ca0169 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Wed, 9 Mar 2022 15:07:27 -0700
Subject: [PATCH 4537/4878] UPSTREAM: ARM: Do not use NOCROSSREFS directive
 with ld.lld

commit 36168e387fa7d0f1fe0cd5cf76c8cea7aee714fa upstream.

ld.lld does not support the NOCROSSREFS directive at the moment, which
breaks the build after commit b9baf5c8c5c3 ("ARM: Spectre-BHB
workaround"):

  ld.lld: error: ./arch/arm/kernel/vmlinux.lds:34: AT expected, but got NOCROSSREFS

Support for this directive will eventually be implemented, at which
point a version check can be added. To avoid breaking the build in the
meantime, just define NOCROSSREFS to nothing when using ld.lld, with a
link to the issue for tracking.

Cc: stable@vger.kernel.org
Fixes: b9baf5c8c5c3 ("ARM: Spectre-BHB workaround")
Link: https://github.com/ClangBuiltLinux/linux/issues/1609
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 8c4192d126ba2a231a0e242c1cbdfed6c7830723)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I82c14c8fbe885d76acb95d85289211979e0b298e
---
 arch/arm/include/asm/vmlinux.lds.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/include/asm/vmlinux.lds.h b/arch/arm/include/asm/vmlinux.lds.h
index 0ef21bfae9f62..fad45c884e988 100644
--- a/arch/arm/include/asm/vmlinux.lds.h
+++ b/arch/arm/include/asm/vmlinux.lds.h
@@ -26,6 +26,14 @@
 #define ARM_MMU_DISCARD(x)	x
 #endif
 
+/*
+ * ld.lld does not support NOCROSSREFS:
+ * https://github.com/ClangBuiltLinux/linux/issues/1609
+ */
+#ifdef CONFIG_LD_IS_LLD
+#define NOCROSSREFS
+#endif
+
 /* Set start/end symbol names to the LMA for the section */
 #define ARM_LMA(sym, section)						\
 	sym##_start = LOADADDR(section);				\
-- 
GitLab


From 83914db2acda57fa1dfcd05586a7a4108c4eb8a8 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 10 Mar 2022 10:22:14 +0000
Subject: [PATCH 4538/4878] UPSTREAM: ARM: fix build warning in proc-v7-bugs.c

commit b1a384d2cbccb1eb3f84765020d25e2c1929706e upstream.

The kernel test robot discovered that building without
HARDEN_BRANCH_PREDICTOR issues a warning due to a missing
argument to pr_info().

Add the missing argument.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 9dd78194a372 ("ARM: report Spectre v2 status through sysfs")
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 90f59cc2f2cc55cb847fcbb43c7c9f5bd0d86139)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I48fc9dff04f5cf292f069e7544f015d8c8322116
---
 arch/arm/mm/proc-v7-bugs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
index c226feab24573..06dbfb968182d 100644
--- a/arch/arm/mm/proc-v7-bugs.c
+++ b/arch/arm/mm/proc-v7-bugs.c
@@ -108,7 +108,8 @@ static unsigned int spectre_v2_install_workaround(unsigned int method)
 #else
 static unsigned int spectre_v2_install_workaround(unsigned int method)
 {
-	pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n");
+	pr_info("CPU%u: Spectre V2: workarounds disabled by configuration\n",
+		smp_processor_id());
 
 	return SPECTRE_VULNERABLE;
 }
-- 
GitLab


From 7e7bc11a7530fbc42b69145b849efa506433e87f Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@kernel.org>
Date: Fri, 21 Jan 2022 12:40:08 -0800
Subject: [PATCH 4539/4878] FROMGIT: rcu: Don't deboost before reporting
 expedited quiescent state

Currently rcu_preempt_deferred_qs_irqrestore() releases rnp->boost_mtx
before reporting the expedited quiescent state.  Under heavy real-time
load, this can result in this function being preempted before the
quiescent state is reported, which can in turn prevent the expedited grace
period from completing.  Tim Murray reports that the resulting expedited
grace periods can take hundreds of milliseconds and even more than one
second, when they should normally complete in less than a millisecond.

This was fine given that there were no particular response-time
constraints for synchronize_rcu_expedited(), as it was designed
for throughput rather than latency.  However, some users now need
sub-100-millisecond response-time constratints.

This patch therefore follows Neeraj's suggestion (seconded by Tim and
by Uladzislau Rezki) of simply reversing the two operations.

Reported-by: Tim Murray <timmurray@google.com>
Reported-by: Joel Fernandes <joelaf@google.com>
Reported-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Reviewed-by: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Tested-by: Tim Murray <timmurray@google.com>
Cc: Todd Kjos <tkjos@google.com>
Cc: Sandeep Patil <sspatil@google.com>
Cc: <stable@vger.kernel.org> # 5.4.x
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

Bug: 217236054
Bug: 224756824
(cherry picked from commit 10c535787436d62ea28156a4b91365fd89b5a432
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
rcu/next)

Change-Id: Iac442f4cb0648c967ec65d4df0f74c8c25940393
Signed-off-by: Kyle Lin <kylelin@google.com>
---
 kernel/rcu/tree_plugin.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 658427c33b937..39e8f78182a85 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -531,16 +531,16 @@ rcu_preempt_deferred_qs_irqrestore(struct task_struct *t, unsigned long flags)
 			raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
 		}
 
-		/* Unboost if we were boosted. */
-		if (IS_ENABLED(CONFIG_RCU_BOOST) && drop_boost_mutex)
-			rt_mutex_futex_unlock(&rnp->boost_mtx);
-
 		/*
 		 * If this was the last task on the expedited lists,
 		 * then we need to report up the rcu_node hierarchy.
 		 */
 		if (!empty_exp && empty_exp_now)
 			rcu_report_exp_rnp(rnp, true);
+
+		/* Unboost if we were boosted. */
+		if (IS_ENABLED(CONFIG_RCU_BOOST) && drop_boost_mutex)
+			rt_mutex_futex_unlock(&rnp->boost_mtx);
 	} else {
 		local_irq_restore(flags);
 	}
-- 
GitLab


From 5af31f2547823e988197e2100eaa8820b0cc55ae Mon Sep 17 00:00:00 2001
From: Tim Murray <timmurray@google.com>
Date: Mon, 31 Jan 2022 18:16:23 -0800
Subject: [PATCH 4540/4878] ANDROID: GKI: enable RCU_BOOST

Now that RCU_BOOST handles CFS threads, enable it.

Bug: 217236054
Test: ensure CFS threads are boosted, TH
Signed-off-by: Tim Murray <timmurray@google.com>
Change-Id: Idd02467f6caad063e14aa5496617b8bbaf0e9ab1
---
 arch/arm64/configs/gki_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 53a35bfa911ff..188b192bcd183 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -8,6 +8,7 @@ CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_PSI=y
 CONFIG_RCU_EXPERT=y
 CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_RCU_BOOST=y
 CONFIG_RCU_NOCB_CPU=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
-- 
GitLab


From b79237c4eadebf2d40ccb55734dd86fc6cbbc803 Mon Sep 17 00:00:00 2001
From: Anshuman Khandual <anshuman.khandual@arm.com>
Date: Mon, 24 Jan 2022 08:45:37 +0530
Subject: [PATCH 4541/4878] UPSTREAM: arm64: Add Cortex-X2 CPU part definition

commit 72bb9dcb6c33cfac80282713c2b4f2b254cd24d1 upstream.

Add the CPU Partnumbers for the new Arm designs.

Bug: 215557547
Cc: Will Deacon <will@kernel.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1642994138-25887-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Icd167e5cd6b4087f0a02c11d3dae9d603926e105
---
 arch/arm64/include/asm/cputype.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 19b8441aa8f26..657eeb06c7847 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -74,6 +74,7 @@
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
 #define ARM_CPU_PART_CORTEX_A710	0xD47
+#define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
 
 #define APM_CPU_PART_POTENZA		0x000
@@ -116,6 +117,7 @@
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
-- 
GitLab


From c5aaa5f0d57ceb3d679f2c17bf555b29585d0f0e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Sun, 17 Oct 2021 13:42:25 +0100
Subject: [PATCH 4542/4878] UPSTREAM: arm64: Add HWCAP for self-synchronising
 virtual counter

commit fee29f008aa3f2aff01117f28b57b1145d92cb9b upstream.

Since userspace can make use of the CNTVSS_EL0 instruction, expose
it via a HWCAP.

Bug: 215557547
Suggested-by: Will Deacon <will@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211017124225.3018098-18-maz@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8d2253c57bb5690135392b84d55bfb854a780b00
---
 Documentation/arm64/cpu-feature-registers.rst | 12 ++++++++++--
 Documentation/arm64/elf_hwcaps.rst            |  4 ++++
 arch/arm64/include/asm/hwcap.h                |  1 +
 arch/arm64/include/uapi/asm/hwcap.h           |  1 +
 arch/arm64/kernel/cpufeature.c                |  3 ++-
 arch/arm64/kernel/cpuinfo.c                   |  1 +
 6 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 328e0c454fbd4..9f9b8fd060892 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -235,7 +235,15 @@ infrastructure:
      | DPB                          | [3-0]   |    y    |
      +------------------------------+---------+---------+
 
-  6) ID_AA64MMFR2_EL1 - Memory model feature register 2
+  6) ID_AA64MMFR0_EL1 - Memory model feature register 0
+
+     +------------------------------+---------+---------+
+     | Name                         |  bits   | visible |
+     +------------------------------+---------+---------+
+     | ECV                          | [63-60] |    y    |
+     +------------------------------+---------+---------+
+
+  7) ID_AA64MMFR2_EL1 - Memory model feature register 2
 
      +------------------------------+---------+---------+
      | Name                         |  bits   | visible |
@@ -243,7 +251,7 @@ infrastructure:
      | AT                           | [35-32] |    y    |
      +------------------------------+---------+---------+
 
-  7) ID_AA64ZFR0_EL1 - SVE feature ID register 0
+  8) ID_AA64ZFR0_EL1 - SVE feature ID register 0
 
      +------------------------------+---------+---------+
      | Name                         |  bits   | visible |
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 3b1712ffeea3d..b8b5b89fd374a 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -245,6 +245,10 @@ HWCAP2_MTE
     Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0010, as described
     by Documentation/arm64/memory-tagging-extension.rst.
 
+HWCAP2_ECV
+
+    Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
+
 HWCAP2_MTE3
 
     Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 38e93b92713ca..9273d1d537cd7 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -105,6 +105,7 @@
 #define KERNEL_HWCAP_RNG		__khwcap2_feature(RNG)
 #define KERNEL_HWCAP_BTI		__khwcap2_feature(BTI)
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
+#define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
 #define KERNEL_HWCAP_MTE3		__khwcap2_feature(MTE3)
 
 /*
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 871a59b292d1a..79ecc90ffbd10 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -75,6 +75,7 @@
 #define HWCAP2_RNG		(1 << 16)
 #define HWCAP2_BTI		(1 << 17)
 #define HWCAP2_MTE		(1 << 18)
+#define HWCAP2_ECV		(1 << 19)
 #define HWCAP2_MTE3		(1 << 22)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index d3e90f914d9cb..b739a4cb7b46b 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -280,7 +280,7 @@ static const struct arm64_ftr_bits ftr_id_aa64zfr0[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_ECV_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_ECV_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_FGT_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_EXS_SHIFT, 4, 0),
 	/*
@@ -2433,6 +2433,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE, CAP_HWCAP, KERNEL_HWCAP_MTE),
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE_ASYMM, CAP_HWCAP, KERNEL_HWCAP_MTE3),
 #endif /* CONFIG_ARM64_MTE */
+	HWCAP_CAP(SYS_ID_AA64MMFR0_EL1, ID_AA64MMFR0_ECV_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ECV),
 	{},
 };
 
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 56012ec63ecad..43aaa5d11b288 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -94,6 +94,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_RNG]		= "rng",
 	[KERNEL_HWCAP_BTI]		= "bti",
 	[KERNEL_HWCAP_MTE]		= "mte",
+	[KERNEL_HWCAP_ECV]		= "ecv",
 	[KERNEL_HWCAP_MTE3]		= "mte3",
 };
 
-- 
GitLab


From 96468c6085fc87f1defb2b187bd778505723e1bc Mon Sep 17 00:00:00 2001
From: Joey Gouly <joey.gouly@arm.com>
Date: Fri, 10 Dec 2021 16:54:31 +0000
Subject: [PATCH 4543/4878] UPSTREAM: arm64: add ID_AA64ISAR2_EL1 sys register

commit 9e45365f1469ef2b934f9d035975dbc9ad352116 upstream.

This is a new ID register, introduced in 8.7.

Bug: 215557547
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Reiji Watanabe <reijiw@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-3-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7f7e7d027ed9ede262d3b9b04cd58cf0234bc36c
---
 arch/arm64/include/asm/cpu.h    |  1 +
 arch/arm64/include/asm/sysreg.h | 15 +++++++++++++++
 arch/arm64/kernel/cpufeature.c  |  9 +++++++++
 arch/arm64/kernel/cpuinfo.c     |  1 +
 arch/arm64/kvm/sys_regs.c       |  2 +-
 5 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
index f4e01aa0f4424..70dd1d6c87360 100644
--- a/arch/arm64/include/asm/cpu.h
+++ b/arch/arm64/include/asm/cpu.h
@@ -50,6 +50,7 @@ struct cpuinfo_arm64 {
 	u64		reg_id_aa64dfr1;
 	u64		reg_id_aa64isar0;
 	u64		reg_id_aa64isar1;
+	u64		reg_id_aa64isar2;
 	u64		reg_id_aa64mmfr0;
 	u64		reg_id_aa64mmfr1;
 	u64		reg_id_aa64mmfr2;
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index f4059ef20db2a..25905ce6bf108 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -180,6 +180,7 @@
 
 #define SYS_ID_AA64ISAR0_EL1		sys_reg(3, 0, 0, 6, 0)
 #define SYS_ID_AA64ISAR1_EL1		sys_reg(3, 0, 0, 6, 1)
+#define SYS_ID_AA64ISAR2_EL1		sys_reg(3, 0, 0, 6, 2)
 
 #define SYS_ID_AA64MMFR0_EL1		sys_reg(3, 0, 0, 7, 0)
 #define SYS_ID_AA64MMFR1_EL1		sys_reg(3, 0, 0, 7, 1)
@@ -759,6 +760,20 @@
 #define ID_AA64ISAR1_GPI_NI			0x0
 #define ID_AA64ISAR1_GPI_IMP_DEF		0x1
 
+/* id_aa64isar2 */
+#define ID_AA64ISAR2_RPRES_SHIFT	4
+#define ID_AA64ISAR2_WFXT_SHIFT		0
+
+#define ID_AA64ISAR2_RPRES_8BIT		0x0
+#define ID_AA64ISAR2_RPRES_12BIT	0x1
+/*
+ * Value 0x1 has been removed from the architecture, and is
+ * reserved, but has not yet been removed from the ARM ARM
+ * as of ARM DDI 0487G.b.
+ */
+#define ID_AA64ISAR2_WFXT_NI		0x0
+#define ID_AA64ISAR2_WFXT_SUPPORTED	0x2
+
 /* id_aa64pfr0 */
 #define ID_AA64PFR0_CSV3_SHIFT		60
 #define ID_AA64PFR0_CSV2_SHIFT		56
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index b739a4cb7b46b..211587e6e358a 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -226,6 +226,10 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 	ARM64_FTR_END,
 };
 
+static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+	ARM64_FTR_END,
+};
+
 static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = {
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV3_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV2_SHIFT, 4, 0),
@@ -633,6 +637,7 @@ static const struct __ftr_reg_entry {
 	ARM64_FTR_REG(SYS_ID_AA64ISAR0_EL1, ftr_id_aa64isar0),
 	ARM64_FTR_REG_OVERRIDE(SYS_ID_AA64ISAR1_EL1, ftr_id_aa64isar1,
 			       &id_aa64isar1_override),
+	ARM64_FTR_REG(SYS_ID_AA64ISAR2_EL1, ftr_id_aa64isar2),
 
 	/* Op1 = 0, CRn = 0, CRm = 7 */
 	ARM64_FTR_REG(SYS_ID_AA64MMFR0_EL1, ftr_id_aa64mmfr0),
@@ -926,6 +931,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info)
 	init_cpu_ftr_reg(SYS_ID_AA64DFR1_EL1, info->reg_id_aa64dfr1);
 	init_cpu_ftr_reg(SYS_ID_AA64ISAR0_EL1, info->reg_id_aa64isar0);
 	init_cpu_ftr_reg(SYS_ID_AA64ISAR1_EL1, info->reg_id_aa64isar1);
+	init_cpu_ftr_reg(SYS_ID_AA64ISAR2_EL1, info->reg_id_aa64isar2);
 	init_cpu_ftr_reg(SYS_ID_AA64MMFR0_EL1, info->reg_id_aa64mmfr0);
 	init_cpu_ftr_reg(SYS_ID_AA64MMFR1_EL1, info->reg_id_aa64mmfr1);
 	init_cpu_ftr_reg(SYS_ID_AA64MMFR2_EL1, info->reg_id_aa64mmfr2);
@@ -1141,6 +1147,8 @@ void update_cpu_features(int cpu,
 				      info->reg_id_aa64isar0, boot->reg_id_aa64isar0);
 	taint |= check_update_ftr_reg(SYS_ID_AA64ISAR1_EL1, cpu,
 				      info->reg_id_aa64isar1, boot->reg_id_aa64isar1);
+	taint |= check_update_ftr_reg(SYS_ID_AA64ISAR2_EL1, cpu,
+				      info->reg_id_aa64isar2, boot->reg_id_aa64isar2);
 
 	/*
 	 * Differing PARange support is fine as long as all peripherals and
@@ -1251,6 +1259,7 @@ u64 __read_sysreg_by_encoding(u32 sys_id)
 	read_sysreg_case(SYS_ID_AA64MMFR2_EL1);
 	read_sysreg_case(SYS_ID_AA64ISAR0_EL1);
 	read_sysreg_case(SYS_ID_AA64ISAR1_EL1);
+	read_sysreg_case(SYS_ID_AA64ISAR2_EL1);
 
 	read_sysreg_case(SYS_CNTFRQ_EL0);
 	read_sysreg_case(SYS_CTR_EL0);
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 43aaa5d11b288..39e38cc971fbe 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -392,6 +392,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
 	info->reg_id_aa64dfr1 = read_cpuid(ID_AA64DFR1_EL1);
 	info->reg_id_aa64isar0 = read_cpuid(ID_AA64ISAR0_EL1);
 	info->reg_id_aa64isar1 = read_cpuid(ID_AA64ISAR1_EL1);
+	info->reg_id_aa64isar2 = read_cpuid(ID_AA64ISAR2_EL1);
 	info->reg_id_aa64mmfr0 = read_cpuid(ID_AA64MMFR0_EL1);
 	info->reg_id_aa64mmfr1 = read_cpuid(ID_AA64MMFR1_EL1);
 	info->reg_id_aa64mmfr2 = read_cpuid(ID_AA64MMFR2_EL1);
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 3034ac013bb19..95b5caad48e9b 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1493,7 +1493,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	/* CRm=6 */
 	ID_SANITISED(ID_AA64ISAR0_EL1),
 	ID_SANITISED(ID_AA64ISAR1_EL1),
-	ID_UNALLOCATED(6,2),
+	ID_SANITISED(ID_AA64ISAR2_EL1),
 	ID_UNALLOCATED(6,3),
 	ID_UNALLOCATED(6,4),
 	ID_UNALLOCATED(6,5),
-- 
GitLab


From 65b1e224b17749cad53443715dbf7f080338eac3 Mon Sep 17 00:00:00 2001
From: Joey Gouly <joey.gouly@arm.com>
Date: Fri, 10 Dec 2021 16:54:30 +0000
Subject: [PATCH 4544/4878] UPSTREAM: arm64: cpufeature: add HWCAP for FEAT_AFP

commit 5c13f042e73200b50573ace63e1a6b94e2917616 upstream.

Add a new HWCAP to detect the Alternate Floating-point Behaviour
feature (FEAT_AFP), introduced in Armv8.7.

Also expose this to userspace in the ID_AA64MMFR1_EL1 feature register.

Bug: 215557547
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-2-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ifb7685f6d97cb469262a3766daab71d09f293b1b
---
 Documentation/arm64/cpu-feature-registers.rst | 9 +++++++++
 Documentation/arm64/elf_hwcaps.rst            | 4 ++++
 arch/arm64/include/asm/hwcap.h                | 1 +
 arch/arm64/include/asm/sysreg.h               | 1 +
 arch/arm64/include/uapi/asm/hwcap.h           | 1 +
 arch/arm64/kernel/cpufeature.c                | 2 ++
 arch/arm64/kernel/cpuinfo.c                   | 1 +
 7 files changed, 19 insertions(+)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 9f9b8fd060892..1b19d20c2dbd6 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -275,6 +275,15 @@ infrastructure:
      | SVEVer                       | [3-0]   |    y    |
      +------------------------------+---------+---------+
 
+  8) ID_AA64MMFR1_EL1 - Memory model feature register 1
+
+     +------------------------------+---------+---------+
+     | Name                         |  bits   | visible |
+     +------------------------------+---------+---------+
+     | AFP                          | [47-44] |    y    |
+     +------------------------------+---------+---------+
+
+
 Appendix I: Example
 -------------------
 
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index b8b5b89fd374a..0ec653909ff3b 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -249,6 +249,10 @@ HWCAP2_ECV
 
     Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
 
+HWCAP2_AFP
+
+    Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001.
+
 HWCAP2_MTE3
 
     Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 9273d1d537cd7..a3a8325bb54e5 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -106,6 +106,7 @@
 #define KERNEL_HWCAP_BTI		__khwcap2_feature(BTI)
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
 #define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
+#define KERNEL_HWCAP_AFP		__khwcap2_feature(AFP)
 #define KERNEL_HWCAP_MTE3		__khwcap2_feature(MTE3)
 
 /*
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 25905ce6bf108..6c830609b8099 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -892,6 +892,7 @@
 #endif
 
 /* id_aa64mmfr1 */
+#define ID_AA64MMFR1_AFP_SHIFT		44
 #define ID_AA64MMFR1_ETS_SHIFT		36
 #define ID_AA64MMFR1_TWED_SHIFT		32
 #define ID_AA64MMFR1_XNX_SHIFT		28
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 79ecc90ffbd10..03bf486f0c788 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -76,6 +76,7 @@
 #define HWCAP2_BTI		(1 << 17)
 #define HWCAP2_MTE		(1 << 18)
 #define HWCAP2_ECV		(1 << 19)
+#define HWCAP2_AFP		(1 << 20)
 #define HWCAP2_MTE3		(1 << 22)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 211587e6e358a..9866cc9d6e32b 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -330,6 +330,7 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64mmfr1[] = {
+	ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_AFP_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_ETS_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_TWED_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR1_XNX_SHIFT, 4, 0),
@@ -2443,6 +2444,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 	HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_MTE_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_MTE_ASYMM, CAP_HWCAP, KERNEL_HWCAP_MTE3),
 #endif /* CONFIG_ARM64_MTE */
 	HWCAP_CAP(SYS_ID_AA64MMFR0_EL1, ID_AA64MMFR0_ECV_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ECV),
+	HWCAP_CAP(SYS_ID_AA64MMFR1_EL1, ID_AA64MMFR1_AFP_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_AFP),
 	{},
 };
 
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 39e38cc971fbe..26624e72f30e8 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -95,6 +95,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_BTI]		= "bti",
 	[KERNEL_HWCAP_MTE]		= "mte",
 	[KERNEL_HWCAP_ECV]		= "ecv",
+	[KERNEL_HWCAP_AFP]		= "afp",
 	[KERNEL_HWCAP_MTE3]		= "mte3",
 };
 
-- 
GitLab


From a7cd57c87823bfe4c4eb88dfd045f242d6ddeeeb Mon Sep 17 00:00:00 2001
From: Joey Gouly <joey.gouly@arm.com>
Date: Fri, 10 Dec 2021 16:54:32 +0000
Subject: [PATCH 4545/4878] UPSTREAM: arm64: cpufeature: add HWCAP for
 FEAT_RPRES

commit 1175011a7d0030d49dc9c10bde36f08f26d0a8ee upstream.

Add a new HWCAP to detect the Increased precision of Reciprocal Estimate
and Reciprocal Square Root Estimate feature (FEAT_RPRES), introduced in Armv8.7.

Also expose this to userspace in the ID_AA64ISAR2_EL1 feature register.

Bug: 215557547
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-4-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I51e6c854cc1d319ccf6f11966e1c014ae82cb4cf
---
 Documentation/arm64/cpu-feature-registers.rst | 8 ++++++++
 Documentation/arm64/elf_hwcaps.rst            | 4 ++++
 arch/arm64/include/asm/hwcap.h                | 1 +
 arch/arm64/include/uapi/asm/hwcap.h           | 1 +
 arch/arm64/kernel/cpufeature.c                | 2 ++
 arch/arm64/kernel/cpuinfo.c                   | 1 +
 6 files changed, 17 insertions(+)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 1b19d20c2dbd6..749ae970c3195 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -283,6 +283,14 @@ infrastructure:
      | AFP                          | [47-44] |    y    |
      +------------------------------+---------+---------+
 
+  9) ID_AA64ISAR2_EL1 - Instruction set attribute register 2
+
+     +------------------------------+---------+---------+
+     | Name                         |  bits   | visible |
+     +------------------------------+---------+---------+
+     | RPRES                        | [7-4]   |    y    |
+     +------------------------------+---------+---------+
+
 
 Appendix I: Example
 -------------------
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 0ec653909ff3b..fcb01338b3129 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -253,6 +253,10 @@ HWCAP2_AFP
 
     Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001.
 
+HWCAP2_RPRES
+
+    Functionality implied by ID_AA64ISAR2_EL1.RPRES == 0b0001.
+
 HWCAP2_MTE3
 
     Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index a3a8325bb54e5..0bd73aeaf14a7 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -107,6 +107,7 @@
 #define KERNEL_HWCAP_MTE		__khwcap2_feature(MTE)
 #define KERNEL_HWCAP_ECV		__khwcap2_feature(ECV)
 #define KERNEL_HWCAP_AFP		__khwcap2_feature(AFP)
+#define KERNEL_HWCAP_RPRES		__khwcap2_feature(RPRES)
 #define KERNEL_HWCAP_MTE3		__khwcap2_feature(MTE3)
 
 /*
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 03bf486f0c788..99cb5d383048d 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -77,6 +77,7 @@
 #define HWCAP2_MTE		(1 << 18)
 #define HWCAP2_ECV		(1 << 19)
 #define HWCAP2_AFP		(1 << 20)
+#define HWCAP2_RPRES		(1 << 21)
 #define HWCAP2_MTE3		(1 << 22)
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 9866cc9d6e32b..d8a61c8e2cd8d 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -227,6 +227,7 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+	ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_RPRES_SHIFT, 4, 0),
 	ARM64_FTR_END,
 };
 
@@ -2445,6 +2446,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
 #endif /* CONFIG_ARM64_MTE */
 	HWCAP_CAP(SYS_ID_AA64MMFR0_EL1, ID_AA64MMFR0_ECV_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ECV),
 	HWCAP_CAP(SYS_ID_AA64MMFR1_EL1, ID_AA64MMFR1_AFP_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_AFP),
+	HWCAP_CAP(SYS_ID_AA64ISAR2_EL1, ID_AA64ISAR2_RPRES_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_RPRES),
 	{},
 };
 
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 26624e72f30e8..2a72a34d7852a 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -96,6 +96,7 @@ static const char *const hwcap_str[] = {
 	[KERNEL_HWCAP_MTE]		= "mte",
 	[KERNEL_HWCAP_ECV]		= "ecv",
 	[KERNEL_HWCAP_AFP]		= "afp",
+	[KERNEL_HWCAP_RPRES]		= "rpres",
 	[KERNEL_HWCAP_MTE3]		= "mte3",
 };
 
-- 
GitLab


From be161e5c6660b9c9ab1a2948a60a377e836b9685 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 17 Nov 2021 15:15:26 +0000
Subject: [PATCH 4546/4878] UPSTREAM: arm64: entry.S: Add ventry overflow
 sanity checks

commit 4330e2c5c04c27bebf89d34e0bc14e6943413067 upstream.

Subsequent patches add even more code to the ventry slots.
Ensure kernels that overflow a ventry slot don't get built.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I03d4525ca81ff83c726a9a43258604b9e165fadc
---
 arch/arm64/kernel/entry.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 2dd31309f7e68..90483c5cf6e6b 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -62,6 +62,7 @@
 
 	.macro kernel_ventry, el, label, regsize = 64
 	.align 7
+.Lventry_start\@:
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	.if	\el == 0
 alternative_if ARM64_UNMAP_KERNEL_AT_EL0
@@ -120,6 +121,7 @@ alternative_else_nop_endif
 	mrs	x0, tpidrro_el0
 #endif
 	b	el\()\el\()_\label
+.org .Lventry_start\@ + 128	// Did we overflow the ventry slot?
 	.endm
 
 	.macro tramp_alias, dst, sym
@@ -929,6 +931,7 @@ alternative_else_nop_endif
 	add	x30, x30, #(1b - tramp_vectors)
 	isb
 	ret
+.org 1b + 128	// Did we overflow the ventry slot?
 	.endm
 
 	.macro tramp_exit, regsize = 64
-- 
GitLab


From 9811efebb90ce7ea684a5599da729465abadcc22 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 16 Nov 2021 15:00:51 +0000
Subject: [PATCH 4547/4878] UPSTREAM: arm64: spectre: Rename
 spectre_v4_patch_fw_mitigation_conduit

commit 1b33d4860deaecf1d8eec3061b7e7ed7ab0bae8d upstream.

The spectre-v4 sequence includes an SMC from the assembly entry code.
spectre_v4_patch_fw_mitigation_conduit is the patching callback that
generates an HVC or SMC depending on the SMCCC conduit type.

As this isn't specific to spectre-v4, rename it
smccc_patch_fw_mitigation_conduit so it can be re-used.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie99c947a2d728bfb55738dda3833b2efeabb6e2e
---
 arch/arm64/kernel/entry.S       | 2 +-
 arch/arm64/kernel/proton-pack.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 90483c5cf6e6b..3664b28e8d07d 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -143,7 +143,7 @@ alternative_cb_end
 	tbnz	\tmp2, #TIF_SSBD, .L__asm_ssbd_skip\@
 	mov	w0, #ARM_SMCCC_ARCH_WORKAROUND_2
 	mov	w1, #\state
-alternative_cb	spectre_v4_patch_fw_mitigation_conduit
+alternative_cb	smccc_patch_fw_mitigation_conduit
 	nop					// Patched to SMC/HVC #0
 alternative_cb_end
 .L__asm_ssbd_skip\@:
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 902e4084c4775..9394f21d75663 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -554,9 +554,9 @@ void __init spectre_v4_patch_fw_mitigation_enable(struct alt_instr *alt,
  * Patch a NOP in the Spectre-v4 mitigation code with an SMC/HVC instruction
  * to call into firmware to adjust the mitigation state.
  */
-void __init spectre_v4_patch_fw_mitigation_conduit(struct alt_instr *alt,
-						   __le32 *origptr,
-						   __le32 *updptr, int nr_inst)
+void __init smccc_patch_fw_mitigation_conduit(struct alt_instr *alt,
+					       __le32 *origptr,
+					       __le32 *updptr, int nr_inst)
 {
 	u32 insn;
 
-- 
GitLab


From df38bfac784b0659f0c5eaa2b7ab7a11dfffb47e Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 15:36:12 +0000
Subject: [PATCH 4548/4878] UPSTREAM: arm64: entry: Make the trampoline cleanup
 optional

commit d739da1694a0eaef0358a42b76904b611539b77b upstream.

Subsequent patches will add additional sets of vectors that use
the same tricks as the kpti vectors to reach the full-fat vectors.
The full-fat vectors contain some cleanup for kpti that is patched
in by alternatives when kpti is in use. Once there are additional
vectors, the cleanup will be needed in more cases.

But on big/little systems, the cleanup would be harmful if no
trampoline vector were in use. Instead of forcing CPUs that don't
need a trampoline vector to use one, make the trampoline cleanup
optional.

Entry at the top of the vectors will skip the cleanup. The trampoline
vectors can then skip the first instruction, triggering the cleanup
to run.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia62262831514064e298fd796e260969a8a46a0f8
---
 arch/arm64/kernel/entry.S | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 3664b28e8d07d..1c0741915b6b7 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -65,14 +65,18 @@
 .Lventry_start\@:
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	.if	\el == 0
-alternative_if ARM64_UNMAP_KERNEL_AT_EL0
+	/*
+	 * This must be the first instruction of the EL0 vector entries. It is
+	 * skipped by the trampoline vectors, to trigger the cleanup.
+	 */
+	b	.Lskip_tramp_vectors_cleanup\@
 	.if	\regsize == 64
 	mrs	x30, tpidrro_el0
 	msr	tpidrro_el0, xzr
 	.else
 	mov	x30, xzr
 	.endif
-alternative_else_nop_endif
+.Lskip_tramp_vectors_cleanup\@:
 	.endif
 #endif
 
@@ -928,7 +932,7 @@ alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
 	prfm	plil1strm, [x30, #(1b - tramp_vectors)]
 alternative_else_nop_endif
 	msr	vbar_el1, x30
-	add	x30, x30, #(1b - tramp_vectors)
+	add	x30, x30, #(1b - tramp_vectors + 4)
 	isb
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
-- 
GitLab


From 5e6ae4e3cb2b045d69ac9cee1ae282d267283799 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 23 Nov 2021 18:41:43 +0000
Subject: [PATCH 4549/4878] UPSTREAM: arm64: entry: Free up another register on
 kpti's tramp_exit path

commit 03aff3a77a58b5b52a77e00537a42090ad57b80b upstream.

Kpti stashes x30 in far_el1 while it uses x30 for all its work.

Making the vectors a per-cpu data structure will require a second
register.

Allow tramp_exit two registers before it unmaps the kernel, by
leaving x30 on the stack, and stashing x29 in far_el1.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib61b44ff4dcd83c18888fb60150c563a577518bf
---
 arch/arm64/kernel/entry.S | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 1c0741915b6b7..edc4566368cd8 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -456,14 +456,16 @@ alternative_else_nop_endif
 	ldp	x24, x25, [sp, #16 * 12]
 	ldp	x26, x27, [sp, #16 * 13]
 	ldp	x28, x29, [sp, #16 * 14]
-	ldr	lr, [sp, #S_LR]
-	add	sp, sp, #S_FRAME_SIZE		// restore sp
 
 	.if	\el == 0
-alternative_insn eret, nop, ARM64_UNMAP_KERNEL_AT_EL0
+alternative_if_not ARM64_UNMAP_KERNEL_AT_EL0
+	ldr	lr, [sp, #S_LR]
+	add	sp, sp, #S_FRAME_SIZE		// restore sp
+	eret
+alternative_else_nop_endif
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	bne	4f
-	msr	far_el1, x30
+	msr	far_el1, x29
 	tramp_alias	x30, tramp_exit_native
 	br	x30
 4:
@@ -471,6 +473,9 @@ alternative_insn eret, nop, ARM64_UNMAP_KERNEL_AT_EL0
 	br	x30
 #endif
 	.else
+	ldr	lr, [sp, #S_LR]
+	add	sp, sp, #S_FRAME_SIZE		// restore sp
+
 	/* Ensure any device/NC reads complete */
 	alternative_insn nop, "dmb sy", ARM64_WORKAROUND_1508412
 
@@ -941,10 +946,12 @@ alternative_else_nop_endif
 	.macro tramp_exit, regsize = 64
 	adr	x30, tramp_vectors
 	msr	vbar_el1, x30
-	tramp_unmap_kernel	x30
+	ldr	lr, [sp, #S_LR]
+	tramp_unmap_kernel	x29
 	.if	\regsize == 64
-	mrs	x30, far_el1
+	mrs	x29, far_el1
 	.endif
+	add	sp, sp, #S_FRAME_SIZE		// restore sp
 	eret
 	sb
 	.endm
-- 
GitLab


From 9d4fc09b9e77f06a45a6762b116e867c3614a39d Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 23 Nov 2021 15:43:31 +0000
Subject: [PATCH 4550/4878] UPSTREAM: arm64: entry: Move the trampoline data
 page before the text page

commit c091fb6ae059cda563b2a4d93fdbc548ef34e1d6 upstream.

The trampoline code has a data page that holds the address of the vectors,
which is unmapped when running in user-space. This ensures that with
CONFIG_RANDOMIZE_BASE, the randomised address of the kernel can't be
discovered until after the kernel has been mapped.

If the trampoline text page is extended to include multiple sets of
vectors, it will be larger than a single page, making it tricky to
find the data page without knowing the size of the trampoline text
pages, which will vary with PAGE_SIZE.

Move the data page to appear before the text page. This allows the
data page to be found without knowing the size of the trampoline text
pages. 'tramp_vectors' is used to refer to the beginning of the
.entry.tramp.text section, do that explicitly.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia72d8b1946c6c63226be2f43c75f1924d027946e
---
 arch/arm64/include/asm/fixmap.h | 2 +-
 arch/arm64/kernel/entry.S       | 9 +++++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index 1aae625b944f0..5bfdfa5742597 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -62,8 +62,8 @@ enum fixed_addresses {
 #endif /* CONFIG_ACPI_APEI_GHES */
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-	FIX_ENTRY_TRAMP_DATA,
 	FIX_ENTRY_TRAMP_TEXT,
+	FIX_ENTRY_TRAMP_DATA,
 #define TRAMP_VALIAS		(__fix_to_virt(FIX_ENTRY_TRAMP_TEXT))
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 	__end_of_permanent_fixed_addresses,
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index edc4566368cd8..90fd24554181d 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -911,6 +911,11 @@ alternative_else_nop_endif
 	 */
 	.endm
 
+	.macro tramp_data_page	dst
+	adr	\dst, .entry.tramp.text
+	sub	\dst, \dst, PAGE_SIZE
+	.endm
+
 	.macro tramp_ventry, regsize = 64
 	.align	7
 1:
@@ -927,7 +932,7 @@ alternative_else_nop_endif
 2:
 	tramp_map_kernel	x30
 #ifdef CONFIG_RANDOMIZE_BASE
-	adr	x30, tramp_vectors + PAGE_SIZE
+	tramp_data_page		x30
 alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
 	ldr	x30, [x30]
 #else
@@ -1081,7 +1086,7 @@ SYM_CODE_START(__sdei_asm_entry_trampoline)
 1:	str	x4, [x1, #(SDEI_EVENT_INTREGS + S_ORIG_ADDR_LIMIT)]
 
 #ifdef CONFIG_RANDOMIZE_BASE
-	adr	x4, tramp_vectors + PAGE_SIZE
+	tramp_data_page		x4
 	add	x4, x4, #:lo12:__sdei_asm_trampoline_next_handler
 	ldr	x4, [x4]
 #else
-- 
GitLab


From 6d6256ca4bf5a77a7e3a99cf7c19f64eea82c1b0 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 11:40:18 +0000
Subject: [PATCH 4551/4878] UPSTREAM: arm64: entry: Allow tramp_alias to access
 symbols after the 4K boundary

commit 6c5bf79b69f911560fbf82214c0971af6e58e682 upstream.

Systems using kpti enter and exit the kernel through a trampoline mapping
that is always mapped, even when the kernel is not. tramp_valias is a macro
to find the address of a symbol in the trampoline mapping.

Adding extra sets of vectors will expand the size of the entry.tramp.text
section to beyond 4K. tramp_valias will be unable to generate addresses
for symbols beyond 4K as it uses the 12 bit immediate of the add
instruction.

As there are now two registers available when tramp_alias is called,
use the extra register to avoid the 4K limit of the 12 bit immediate.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic7a70f79baeacb3c8d12c396009968e563a2e69a
---
 arch/arm64/kernel/entry.S | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 90fd24554181d..3c32ebc6006b2 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -128,9 +128,12 @@
 .org .Lventry_start\@ + 128	// Did we overflow the ventry slot?
 	.endm
 
-	.macro tramp_alias, dst, sym
+	.macro tramp_alias, dst, sym, tmp
 	mov_q	\dst, TRAMP_VALIAS
-	add	\dst, \dst, #(\sym - .entry.tramp.text)
+	adr_l	\tmp, \sym
+	add	\dst, \dst, \tmp
+	adr_l	\tmp, .entry.tramp.text
+	sub	\dst, \dst, \tmp
 	.endm
 
 	/*
@@ -466,10 +469,10 @@ alternative_else_nop_endif
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	bne	4f
 	msr	far_el1, x29
-	tramp_alias	x30, tramp_exit_native
+	tramp_alias	x30, tramp_exit_native, x29
 	br	x30
 4:
-	tramp_alias	x30, tramp_exit_compat
+	tramp_alias	x30, tramp_exit_compat, x29
 	br	x30
 #endif
 	.else
@@ -1228,7 +1231,7 @@ alternative_if_not ARM64_UNMAP_KERNEL_AT_EL0
 alternative_else_nop_endif
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-	tramp_alias	dst=x5, sym=__sdei_asm_exit_trampoline
+	tramp_alias	dst=x5, sym=__sdei_asm_exit_trampoline, tmp=x3
 	br	x5
 #endif
 SYM_CODE_END(__sdei_asm_handler)
-- 
GitLab


From e80db263bef5f31f0baffc5e41fcc179ae27fe22 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 13:40:09 +0000
Subject: [PATCH 4552/4878] UPSTREAM: arm64: entry: Don't assume tramp_vectors
 is the start of the vectors

commit ed50da7764535f1e24432ded289974f2bf2b0c5a upstream.

The tramp_ventry macro uses tramp_vectors as the address of the vectors
when calculating which ventry in the 'full fat' vectors to branch to.

While there is one set of tramp_vectors, this will be true.
Adding multiple sets of vectors will break this assumption.

Move the generation of the vectors to a macro, and pass the start
of the vectors as an argument to tramp_ventry.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Idff2a8dcbb088edb40ea0714212ec966d4c065da
---
 arch/arm64/kernel/entry.S | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 3c32ebc6006b2..3e632674261de 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -919,7 +919,7 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
-	.macro tramp_ventry, regsize = 64
+	.macro tramp_ventry, vector_start, regsize
 	.align	7
 1:
 	.if	\regsize == 64
@@ -942,10 +942,10 @@ alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
 	ldr	x30, =vectors
 #endif
 alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
-	prfm	plil1strm, [x30, #(1b - tramp_vectors)]
+	prfm	plil1strm, [x30, #(1b - \vector_start)]
 alternative_else_nop_endif
 	msr	vbar_el1, x30
-	add	x30, x30, #(1b - tramp_vectors + 4)
+	add	x30, x30, #(1b - \vector_start + 4)
 	isb
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
@@ -964,19 +964,21 @@ alternative_else_nop_endif
 	sb
 	.endm
 
-	.align	11
-SYM_CODE_START_NOALIGN(tramp_vectors)
+	.macro	generate_tramp_vector
+.Lvector_start\@:
 	.space	0x400
 
-	tramp_ventry
-	tramp_ventry
-	tramp_ventry
-	tramp_ventry
+	.rept	4
+	tramp_ventry	.Lvector_start\@, 64
+	.endr
+	.rept	4
+	tramp_ventry	.Lvector_start\@, 32
+	.endr
+	.endm
 
-	tramp_ventry	32
-	tramp_ventry	32
-	tramp_ventry	32
-	tramp_ventry	32
+	.align	11
+SYM_CODE_START_NOALIGN(tramp_vectors)
+	generate_tramp_vector
 SYM_CODE_END(tramp_vectors)
 
 SYM_CODE_START(tramp_exit_native)
-- 
GitLab


From 873dbc2b8ecc2acf2388056bfced5bf6361a4c73 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 14:02:30 +0000
Subject: [PATCH 4553/4878] UPSTREAM: arm64: entry: Move trampoline macros out
 of ifdef'd section

commit 13d7a08352a83ef2252aeb464a5e08dfc06b5dfd upstream.

The macros for building the kpti trampoline are all behind
CONFIG_UNMAP_KERNEL_AT_EL0, and in a region that outputs to the
.entry.tramp.text section.

Move the macros out so they can be used to generate other kinds of
trampoline. Only the symbols need to be guarded by
CONFIG_UNMAP_KERNEL_AT_EL0 and appear in the .entry.tramp.text section.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7ce53531765df5ac4eb9a4d814ab561a6df76931
---
 arch/arm64/kernel/entry.S | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 3e632674261de..d5c2ddad8d111 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -875,12 +875,6 @@ SYM_CODE_END(ret_to_user)
 
 	.popsection				// .entry.text
 
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-/*
- * Exception vectors trampoline.
- */
-	.pushsection ".entry.tramp.text", "ax"
-
 	// Move from tramp_pg_dir to swapper_pg_dir
 	.macro tramp_map_kernel, tmp
 	mrs	\tmp, ttbr1_el1
@@ -976,6 +970,11 @@ alternative_else_nop_endif
 	.endr
 	.endm
 
+#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
+/*
+ * Exception vectors trampoline.
+ */
+	.pushsection ".entry.tramp.text", "ax"
 	.align	11
 SYM_CODE_START_NOALIGN(tramp_vectors)
 	generate_tramp_vector
-- 
GitLab


From 16ddad71e36c65545bef2ab577adbc3e40fe4668 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 13:16:23 +0000
Subject: [PATCH 4554/4878] UPSTREAM: arm64: entry: Make the kpti trampoline's
 kpti sequence optional

commit c47e4d04ba0f1ea17353d85d45f611277507e07a upstream.

Spectre-BHB needs to add sequences to the vectors. Having one global
set of vectors is a problem for big/little systems where the sequence
is costly on cpus that are not vulnerable.

Making the vectors per-cpu in the style of KVM's bh_harden_hyp_vecs
requires the vectors to be generated by macros.

Make the kpti re-mapping of the kernel optional, so the macros can be
used without kpti.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2c20a42404a0cf79df9f9ccc69328ed986125208
---
 arch/arm64/kernel/entry.S | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index d5c2ddad8d111..879e3bb2dc435 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -913,9 +913,10 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
-	.macro tramp_ventry, vector_start, regsize
+	.macro tramp_ventry, vector_start, regsize, kpti
 	.align	7
 1:
+	.if	\kpti == 1
 	.if	\regsize == 64
 	msr	tpidrro_el0, x30	// Restored in kernel_ventry
 	.endif
@@ -938,9 +939,14 @@ alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
 alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
 	prfm	plil1strm, [x30, #(1b - \vector_start)]
 alternative_else_nop_endif
+
 	msr	vbar_el1, x30
-	add	x30, x30, #(1b - \vector_start + 4)
 	isb
+	.else
+	ldr	x30, =vectors
+	.endif // \kpti == 1
+
+	add	x30, x30, #(1b - \vector_start + 4)
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
 	.endm
@@ -958,15 +964,15 @@ alternative_else_nop_endif
 	sb
 	.endm
 
-	.macro	generate_tramp_vector
+	.macro	generate_tramp_vector,	kpti
 .Lvector_start\@:
 	.space	0x400
 
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 64
+	tramp_ventry	.Lvector_start\@, 64, \kpti
 	.endr
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 32
+	tramp_ventry	.Lvector_start\@, 32, \kpti
 	.endr
 	.endm
 
@@ -977,7 +983,7 @@ alternative_else_nop_endif
 	.pushsection ".entry.tramp.text", "ax"
 	.align	11
 SYM_CODE_START_NOALIGN(tramp_vectors)
-	generate_tramp_vector
+	generate_tramp_vector	kpti=1
 SYM_CODE_END(tramp_vectors)
 
 SYM_CODE_START(tramp_exit_native)
-- 
GitLab


From 15e43a2ac5e15c503c104831e9e2b6d5fc7d6131 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 15:04:32 +0000
Subject: [PATCH 4555/4878] UPSTREAM: arm64: entry: Allow the trampoline text
 to occupy multiple pages

commit a9c406e6462ff14956d690de7bbe5131a5677dc9 upstream.

Adding a second set of vectors to .entry.tramp.text will make it
larger than a single 4K page.

Allow the trampoline text to occupy up to three pages by adding two
more fixmap slots. Previous changes to tramp_valias allowed it to reach
beyond a single page.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibd280a2b20b8e0ea42ab76b86afa84920cc25eee
---
 arch/arm64/include/asm/fixmap.h   |  6 ++++--
 arch/arm64/include/asm/sections.h |  5 +++++
 arch/arm64/kernel/entry.S         |  2 +-
 arch/arm64/kernel/vmlinux.lds.S   |  2 +-
 arch/arm64/mm/mmu.c               | 12 +++++++++---
 5 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index 5bfdfa5742597..f4b7a1c1e5224 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -62,9 +62,11 @@ enum fixed_addresses {
 #endif /* CONFIG_ACPI_APEI_GHES */
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-	FIX_ENTRY_TRAMP_TEXT,
+	FIX_ENTRY_TRAMP_TEXT3,
+	FIX_ENTRY_TRAMP_TEXT2,
+	FIX_ENTRY_TRAMP_TEXT1,
 	FIX_ENTRY_TRAMP_DATA,
-#define TRAMP_VALIAS		(__fix_to_virt(FIX_ENTRY_TRAMP_TEXT))
+#define TRAMP_VALIAS		(__fix_to_virt(FIX_ENTRY_TRAMP_TEXT1))
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 	__end_of_permanent_fixed_addresses,
 
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
index ddaa658d0046e..6b2ce1ed1d4c3 100644
--- a/arch/arm64/include/asm/sections.h
+++ b/arch/arm64/include/asm/sections.h
@@ -23,4 +23,9 @@ extern char __irqentry_text_start[], __irqentry_text_end[];
 extern char __mmuoff_data_start[], __mmuoff_data_end[];
 extern char __entry_tramp_text_start[], __entry_tramp_text_end[];
 
+static inline size_t entry_tramp_text_size(void)
+{
+	return __entry_tramp_text_end - __entry_tramp_text_start;
+}
+
 #endif /* __ASM_SECTIONS_H */
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 879e3bb2dc435..73553e52151cd 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -909,7 +909,7 @@ alternative_else_nop_endif
 	.endm
 
 	.macro tramp_data_page	dst
-	adr	\dst, .entry.tramp.text
+	adr_l	\dst, .entry.tramp.text
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 8c452df6d870f..ec52e85131f37 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -342,7 +342,7 @@ ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1))
 	<= SZ_4K, "Hibernate exit text too big or misaligned")
 #endif
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) == PAGE_SIZE,
+ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) <= 3*PAGE_SIZE,
 	"Entry trampoline text too big")
 #endif
 #ifdef CONFIG_KVM
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index da1c8229f4741..52483efde97f2 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -594,6 +594,8 @@ early_param("rodata", parse_rodata);
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 static int __init map_entry_trampoline(void)
 {
+	int i;
+
 	pgprot_t prot = rodata_enabled ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC;
 	phys_addr_t pa_start = __pa_symbol(__entry_tramp_text_start);
 
@@ -602,11 +604,15 @@ static int __init map_entry_trampoline(void)
 
 	/* Map only the text into the trampoline page table */
 	memset(tramp_pg_dir, 0, PGD_SIZE);
-	__create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS, PAGE_SIZE,
-			     prot, __pgd_pgtable_alloc, 0);
+	__create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS,
+			     entry_tramp_text_size(), prot,
+			     __pgd_pgtable_alloc, NO_BLOCK_MAPPINGS);
 
 	/* Map both the text and data into the kernel page table */
-	__set_fixmap(FIX_ENTRY_TRAMP_TEXT, pa_start, prot);
+	for (i = 0; i < DIV_ROUND_UP(entry_tramp_text_size(), PAGE_SIZE); i++)
+		__set_fixmap(FIX_ENTRY_TRAMP_TEXT1 - i,
+			     pa_start + i * PAGE_SIZE, prot);
+
 	if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) {
 		extern char __entry_tramp_data_start[];
 
-- 
GitLab


From 150ecd86887b2571214a4d998eb8597434ebb476 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 24 Nov 2021 15:03:15 +0000
Subject: [PATCH 4556/4878] UPSTREAM: arm64: entry: Add non-kpti
 __bp_harden_el1_vectors for mitigations

commit aff65393fa1401e034656e349abd655cfe272de0 upstream.

kpti is an optional feature, for systems not using kpti a set of
vectors for the spectre-bhb mitigations is needed.

Add another set of vectors, __bp_harden_el1_vectors, that will be
used if a mitigation is needed and kpti is not in use.

The EL1 ventries are repeated verbatim as there is no additional
work needed for entry from EL1.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0e72c5c1c366d3906bc1525e24a367989dfc98af
---
 arch/arm64/kernel/entry.S | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 73553e52151cd..cf0d7145871fc 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -916,10 +916,11 @@ alternative_else_nop_endif
 	.macro tramp_ventry, vector_start, regsize, kpti
 	.align	7
 1:
-	.if	\kpti == 1
 	.if	\regsize == 64
 	msr	tpidrro_el0, x30	// Restored in kernel_ventry
 	.endif
+
+	.if	\kpti == 1
 	/*
 	 * Defend against branch aliasing attacks by pushing a dummy
 	 * entry onto the return stack and using a RET instruction to
@@ -1006,6 +1007,38 @@ SYM_DATA_END(__entry_tramp_data_start)
 #endif /* CONFIG_RANDOMIZE_BASE */
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 
+/*
+ * Exception vectors for spectre mitigations on entry from EL1 when
+ * kpti is not in use.
+ */
+	.macro generate_el1_vector
+.Lvector_start\@:
+	kernel_ventry	1, sync_invalid			// Synchronous EL1t
+	kernel_ventry	1, irq_invalid			// IRQ EL1t
+	kernel_ventry	1, fiq_invalid			// FIQ EL1t
+	kernel_ventry	1, error_invalid		// Error EL1t
+
+	kernel_ventry	1, sync				// Synchronous EL1h
+	kernel_ventry	1, irq				// IRQ EL1h
+	kernel_ventry	1, fiq_invalid			// FIQ EL1h
+	kernel_ventry	1, error			// Error EL1h
+
+	.rept	4
+	tramp_ventry	.Lvector_start\@, 64, kpti=0
+	.endr
+	.rept 4
+	tramp_ventry	.Lvector_start\@, 32, kpti=0
+	.endr
+	.endm
+
+	.pushsection ".entry.text", "ax"
+	.align	11
+SYM_CODE_START(__bp_harden_el1_vectors)
+	generate_el1_vector
+SYM_CODE_END(__bp_harden_el1_vectors)
+	.popsection
+
+
 /*
  * Register switch for AArch64. The callee-saved registers need to be saved
  * and restored. On entry:
-- 
GitLab


From ffb8d4139dbcc245ab7013d56c637cfa04c1d4cf Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 18 Nov 2021 13:59:46 +0000
Subject: [PATCH 4557/4878] UPSTREAM: arm64: entry: Add vectors that have the
 bhb mitigation sequences

commit ba2689234be92024e5635d30fe744f4853ad97db upstream.

Some CPUs affected by Spectre-BHB need a sequence of branches, or a
firmware call to be run before any indirect branch. This needs to go
in the vectors. No CPU needs both.

While this can be patched in, it would run on all CPUs as there is a
single set of vectors. If only one part of a big/little combination is
affected, the unaffected CPUs have to run the mitigation too.

Create extra vectors that include the sequence. Subsequent patches will
allow affected CPUs to select this set of vectors. Later patches will
modify the loop count to match what the CPU requires.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1da5c328a2309430893d4874ba33643bc14c90fd
---
 arch/arm64/include/asm/assembler.h | 24 ++++++++++++++
 arch/arm64/include/asm/vectors.h   | 34 +++++++++++++++++++
 arch/arm64/kernel/entry.S          | 53 +++++++++++++++++++++++++-----
 include/linux/arm-smccc.h          |  5 +++
 4 files changed, 107 insertions(+), 9 deletions(-)
 create mode 100644 arch/arm64/include/asm/vectors.h

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 19150fc1c7942..1ff83dec6b7ef 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -817,4 +817,28 @@ alternative_endif
 
 #endif /* GNU_PROPERTY_AARCH64_FEATURE_1_DEFAULT */
 
+	.macro __mitigate_spectre_bhb_loop      tmp
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	mov	\tmp, #32
+.Lspectre_bhb_loop\@:
+	b	. + 4
+	subs	\tmp, \tmp, #1
+	b.ne	.Lspectre_bhb_loop\@
+	sb
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	.endm
+
+	/* Save/restores x0-x3 to the stack */
+	.macro __mitigate_spectre_bhb_fw
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	stp	x0, x1, [sp, #-16]!
+	stp	x2, x3, [sp, #-16]!
+	mov	w0, #ARM_SMCCC_ARCH_WORKAROUND_3
+alternative_cb	smccc_patch_fw_mitigation_conduit
+	nop					// Patched to SMC/HVC #0
+alternative_cb_end
+	ldp	x2, x3, [sp], #16
+	ldp	x0, x1, [sp], #16
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	.endm
 #endif	/* __ASM_ASSEMBLER_H */
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
new file mode 100644
index 0000000000000..16ca742603753
--- /dev/null
+++ b/arch/arm64/include/asm/vectors.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022 ARM Ltd.
+ */
+#ifndef __ASM_VECTORS_H
+#define __ASM_VECTORS_H
+
+/*
+ * Note: the order of this enum corresponds to two arrays in entry.S:
+ * tramp_vecs and __bp_harden_el1_vectors. By default the canonical
+ * 'full fat' vectors are used directly.
+ */
+enum arm64_bp_harden_el1_vectors {
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	/*
+	 * Perform the BHB loop mitigation, before branching to the canonical
+	 * vectors.
+	 */
+	EL1_VECTOR_BHB_LOOP,
+
+	/*
+	 * Make the SMC call for firmware mitigation, before branching to the
+	 * canonical vectors.
+	 */
+	EL1_VECTOR_BHB_FW,
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+
+	/*
+	 * Remap the kernel before branching to the canonical vectors.
+	 */
+	EL1_VECTOR_KPTI,
+};
+
+#endif /* __ASM_VECTORS_H */
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index cf0d7145871fc..0b9b182e0be3d 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -913,13 +913,26 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
-	.macro tramp_ventry, vector_start, regsize, kpti
+
+#define BHB_MITIGATION_NONE	0
+#define BHB_MITIGATION_LOOP	1
+#define BHB_MITIGATION_FW	2
+
+	.macro tramp_ventry, vector_start, regsize, kpti, bhb
 	.align	7
 1:
 	.if	\regsize == 64
 	msr	tpidrro_el0, x30	// Restored in kernel_ventry
 	.endif
 
+	.if	\bhb == BHB_MITIGATION_LOOP
+	/*
+	 * This sequence must appear before the first indirect branch. i.e. the
+	 * ret out of tramp_ventry. It appears here because x30 is free.
+	 */
+	__mitigate_spectre_bhb_loop	x30
+	.endif // \bhb == BHB_MITIGATION_LOOP
+
 	.if	\kpti == 1
 	/*
 	 * Defend against branch aliasing attacks by pushing a dummy
@@ -947,6 +960,15 @@ alternative_else_nop_endif
 	ldr	x30, =vectors
 	.endif // \kpti == 1
 
+	.if	\bhb == BHB_MITIGATION_FW
+	/*
+	 * The firmware sequence must appear before the first indirect branch.
+	 * i.e. the ret out of tramp_ventry. But it also needs the stack to be
+	 * mapped to save/restore the registers the SMC clobbers.
+	 */
+	__mitigate_spectre_bhb_fw
+	.endif // \bhb == BHB_MITIGATION_FW
+
 	add	x30, x30, #(1b - \vector_start + 4)
 	ret
 .org 1b + 128	// Did we overflow the ventry slot?
@@ -954,6 +976,9 @@ alternative_else_nop_endif
 
 	.macro tramp_exit, regsize = 64
 	adr	x30, tramp_vectors
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	add	x30, x30, SZ_4K
+#endif
 	msr	vbar_el1, x30
 	ldr	lr, [sp, #S_LR]
 	tramp_unmap_kernel	x29
@@ -965,26 +990,32 @@ alternative_else_nop_endif
 	sb
 	.endm
 
-	.macro	generate_tramp_vector,	kpti
+	.macro	generate_tramp_vector,	kpti, bhb
 .Lvector_start\@:
 	.space	0x400
 
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 64, \kpti
+	tramp_ventry	.Lvector_start\@, 64, \kpti, \bhb
 	.endr
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 32, \kpti
+	tramp_ventry	.Lvector_start\@, 32, \kpti, \bhb
 	.endr
 	.endm
 
 #ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 /*
  * Exception vectors trampoline.
+ * The order must match __bp_harden_el1_vectors and the
+ * arm64_bp_harden_el1_vectors enum.
  */
 	.pushsection ".entry.tramp.text", "ax"
 	.align	11
 SYM_CODE_START_NOALIGN(tramp_vectors)
-	generate_tramp_vector	kpti=1
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_LOOP
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_FW
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_NONE
 SYM_CODE_END(tramp_vectors)
 
 SYM_CODE_START(tramp_exit_native)
@@ -1011,7 +1042,7 @@ SYM_DATA_END(__entry_tramp_data_start)
  * Exception vectors for spectre mitigations on entry from EL1 when
  * kpti is not in use.
  */
-	.macro generate_el1_vector
+	.macro generate_el1_vector, bhb
 .Lvector_start\@:
 	kernel_ventry	1, sync_invalid			// Synchronous EL1t
 	kernel_ventry	1, irq_invalid			// IRQ EL1t
@@ -1024,17 +1055,21 @@ SYM_DATA_END(__entry_tramp_data_start)
 	kernel_ventry	1, error			// Error EL1h
 
 	.rept	4
-	tramp_ventry	.Lvector_start\@, 64, kpti=0
+	tramp_ventry	.Lvector_start\@, 64, 0, \bhb
 	.endr
 	.rept 4
-	tramp_ventry	.Lvector_start\@, 32, kpti=0
+	tramp_ventry	.Lvector_start\@, 32, 0, \bhb
 	.endr
 	.endm
 
+/* The order must match tramp_vecs and the arm64_bp_harden_el1_vectors enum. */
 	.pushsection ".entry.text", "ax"
 	.align	11
 SYM_CODE_START(__bp_harden_el1_vectors)
-	generate_el1_vector
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+	generate_el1_vector	bhb=BHB_MITIGATION_LOOP
+	generate_el1_vector	bhb=BHB_MITIGATION_FW
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 SYM_CODE_END(__bp_harden_el1_vectors)
 	.popsection
 
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index e74199fe55dfe..32b0f91ed2bde 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -120,6 +120,11 @@
 			   ARM_SMCCC_OWNER_VENDOR_HYP,			\
 			   ARM_SMCCC_KVM_FUNC_FEATURES)
 
+#define ARM_SMCCC_ARCH_WORKAROUND_3					\
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
+			   ARM_SMCCC_SMC_32,				\
+			   0, 0x3fff)
+
 #define SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED	1
 
 /*
-- 
GitLab


From bede94339aefa64a43ce074b2cec7185052b2569 Mon Sep 17 00:00:00 2001
From: Wang Xiaojun <wangxiaojun11@huawei.com>
Date: Mon, 14 Mar 2022 15:15:15 +0800
Subject: [PATCH 4558/4878] f2fs: remove redundant parameter judgment

iput() has already judged the incoming parameter, so there is
no need to repeat the judgment here.

Signed-off-by: Wang Xiaojun <wangxiaojun11@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/namei.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index f978c0f91558d..0de98abd72829 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -1106,8 +1106,7 @@ out_dir:
 out_old:
 	f2fs_put_page(old_page, 0);
 out:
-	if (whiteout)
-		iput(whiteout);
+	iput(whiteout);
 	return err;
 }
 
-- 
GitLab


From 13f1b8f1472cedb4ccdd8da9eec1f79c1bf06eca Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Wed, 16 Mar 2022 18:20:00 +0800
Subject: [PATCH 4559/4878] f2fs: compress: fix to print raw data size in error
 path of lz4 decompression

In lz4_decompress_pages(), if size of decompressed data is not equal to
expected one, we should print the size rather than size of target buffer
for decompressed data, fix it.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/compress.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 62105c1230648..750573d1feaaa 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -313,10 +313,9 @@ static int lz4_decompress_pages(struct decompress_io_ctx *dic)
 	}
 
 	if (ret != PAGE_SIZE << dic->log_cluster_size) {
-		printk_ratelimited("%sF2FS-fs (%s): lz4 invalid rlen:%zu, "
+		printk_ratelimited("%sF2FS-fs (%s): lz4 invalid ret:%d, "
 					"expected:%lu\n", KERN_ERR,
-					F2FS_I_SB(dic->inode)->sb->s_id,
-					dic->rlen,
+					F2FS_I_SB(dic->inode)->sb->s_id, ret,
 					PAGE_SIZE << dic->log_cluster_size);
 		return -EIO;
 	}
-- 
GitLab


From 81a9c7d6ac00bd6070cfc9ef517246092bc5f81c Mon Sep 17 00:00:00 2001
From: Daeho Jeong <daehojeong@google.com>
Date: Tue, 15 Mar 2022 21:14:14 -0700
Subject: [PATCH 4560/4878] f2fs: introduce gc_urgent_mid mode

We need a mid level of gc urgent mode to do GC forcibly in a period
of given gc_urgent_sleep_time, but not like using greedy GC approach
and switching to SSR mode such as gc urgent high mode. This can be
used for more aggressive periodic storage clean up.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 Documentation/ABI/testing/sysfs-fs-f2fs | 17 +++++++++++------
 fs/f2fs/debug.c                         |  4 +++-
 fs/f2fs/f2fs.h                          |  4 ++++
 fs/f2fs/gc.c                            |  3 +++
 fs/f2fs/sysfs.c                         |  7 +++++++
 5 files changed, 28 insertions(+), 7 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index e4ccc42aea012..9b583dd0298b7 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -297,11 +297,16 @@ Description:	Shows current reserved blocks in system, it may be temporarily
 What:		/sys/fs/f2fs/<disk>/gc_urgent
 Date:		August 2017
 Contact:	"Jaegeuk Kim" <jaegeuk@kernel.org>
-Description:	Do background GC agressively when set. When gc_urgent = 1,
-		background thread starts to do GC by given gc_urgent_sleep_time
-		interval. When gc_urgent = 2, F2FS will lower the bar of
-		checking idle in order to process outstanding discard commands
-		and GC a little bit aggressively. It is set to 0 by default.
+Description:	Do background GC aggressively when set. Set to 0 by default.
+		gc urgent high(1): does GC forcibly in a period of given
+		gc_urgent_sleep_time and ignores I/O idling check. uses greedy
+		GC approach and turns SSR mode on.
+		gc urgent low(2): lowers the bar of checking I/O idling in
+		order to process outstanding discard commands and GC a
+		little bit aggressively. uses cost benefit GC approach.
+		gc urgent mid(3): does GC forcibly in a period of given
+		gc_urgent_sleep_time and executes a mid level of I/O idling check.
+		uses cost benefit GC approach.
 
 What:		/sys/fs/f2fs/<disk>/gc_urgent_sleep_time
 Date:		August 2017
@@ -532,7 +537,7 @@ Date:		July 2021
 Contact:	"Daeho Jeong" <daehojeong@google.com>
 Description:	Show how many segments have been reclaimed by GC during a specific
 		GC mode (0: GC normal, 1: GC idle CB, 2: GC idle greedy,
-		3: GC idle AT, 4: GC urgent high, 5: GC urgent low)
+		3: GC idle AT, 4: GC urgent high, 5: GC urgent low 6: GC urgent mid)
 		You can re-initialize this value to "0".
 
 What:		/sys/fs/f2fs/<disk>/gc_segment_mode
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 6d26872c7364d..fcdf253cd211e 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -476,12 +476,14 @@ static int stat_show(struct seq_file *s, void *v)
 				si->node_segs, si->bg_node_segs);
 		seq_printf(s, "  - Reclaimed segs : Normal (%d), Idle CB (%d), "
 				"Idle Greedy (%d), Idle AT (%d), "
-				"Urgent High (%d), Urgent Low (%d)\n",
+				"Urgent High (%d), Urgent Mid (%d), "
+				"Urgent Low (%d)\n",
 				si->sbi->gc_reclaimed_segs[GC_NORMAL],
 				si->sbi->gc_reclaimed_segs[GC_IDLE_CB],
 				si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY],
 				si->sbi->gc_reclaimed_segs[GC_IDLE_AT],
 				si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH],
+				si->sbi->gc_reclaimed_segs[GC_URGENT_MID],
 				si->sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
 		seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
 				si->bg_data_blks + si->bg_node_blks);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 334cebabab990..f4bdfa7af3baa 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1312,6 +1312,7 @@ enum {
 	GC_IDLE_AT,
 	GC_URGENT_HIGH,
 	GC_URGENT_LOW,
+	GC_URGENT_MID,
 	MAX_GC_MODE,
 };
 
@@ -2783,6 +2784,9 @@ static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
 	if (is_inflight_io(sbi, type))
 		return false;
 
+	if (sbi->gc_mode == GC_URGENT_MID)
+		return true;
+
 	if (sbi->gc_mode == GC_URGENT_LOW &&
 			(type == DISCARD_TIME || type == GC_TIME))
 		return true;
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 8ab4b40c12c57..79dc38eacb193 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -103,7 +103,10 @@ static int gc_thread_func(void *data)
 				sbi->gc_urgent_high_remaining--;
 			}
 			spin_unlock(&sbi->gc_urgent_high_lock);
+		}
 
+		if (sbi->gc_mode == GC_URGENT_HIGH ||
+				sbi->gc_mode == GC_URGENT_MID) {
 			wait_ms = gc_th->urgent_sleep_time;
 			f2fs_down_write(&sbi->gc_lock);
 			goto do_gc;
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 9c6c5de6de7a1..8fad502d1b371 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -469,6 +469,13 @@ out:
 			}
 		} else if (t == 2) {
 			sbi->gc_mode = GC_URGENT_LOW;
+		} else if (t == 3) {
+			sbi->gc_mode = GC_URGENT_MID;
+			if (sbi->gc_thread) {
+				sbi->gc_thread->gc_wake = 1;
+				wake_up_interruptible_all(
+					&sbi->gc_thread->gc_wait_queue_head);
+			}
 		} else {
 			return -EINVAL;
 		}
-- 
GitLab


From 17a4b8f946b8b423ed3c8c60b07ab7f66b080174 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Thu, 10 Mar 2022 18:05:44 -0800
Subject: [PATCH 4561/4878] ANDROID: fuse-bpf: Add support for
 FUSE_COPY_FILE_RANGE

Bug: 217570523
Test: generic/075
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I5feb75c83bc8bca2f44700d731f9f43e1eacf77c
---
 fs/fuse/backing.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++
 fs/fuse/file.c    | 12 ++++++++++
 fs/fuse/fuse_i.h  | 19 ++++++++++++++++
 3 files changed, 89 insertions(+)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index c351d04ccd9a9..efd76dc08f3d6 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -403,6 +403,64 @@ void *fuse_flush_finalize(struct fuse_args *fa, struct file *file, fl_owner_t id
 	return NULL;
 }
 
+int fuse_copy_file_range_initialize(struct fuse_args *fa, struct fuse_copy_file_range_io *fcf,
+				   struct file *file_in, loff_t pos_in, struct file *file_out,
+				   loff_t pos_out, size_t len, unsigned int flags)
+{
+	struct fuse_file *fuse_file_in = file_in->private_data;
+	struct fuse_file *fuse_file_out = file_out->private_data;
+
+
+	fcf->fci = (struct fuse_copy_file_range_in) {
+		.fh_in = fuse_file_in->fh,
+		.off_in = pos_in,
+		.nodeid_out = fuse_file_out->nodeid,
+		.fh_out = fuse_file_out->fh,
+		.off_out = pos_out,
+		.len = len,
+		.flags = flags,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(file_in->f_inode),
+		.opcode = FUSE_COPY_FILE_RANGE,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(fcf->fci),
+		.in_args[0].value = &fcf->fci,
+		.out_numargs = 1,
+		.out_args[0].size = sizeof(fcf->fwo),
+		.out_args[0].value = &fcf->fwo,
+	};
+
+	return 0;
+}
+
+int fuse_copy_file_range_backing(struct fuse_args *fa, struct file *file_in, loff_t pos_in,
+				 struct file *file_out, loff_t pos_out, size_t len,
+				 unsigned int flags)
+{
+	const struct fuse_copy_file_range_in *fci = fa->in_args[0].value;
+	struct fuse_file *fuse_file_in = file_in->private_data;
+	struct file *backing_file_in = fuse_file_in->backing_file;
+	struct fuse_file *fuse_file_out = file_out->private_data;
+	struct file *backing_file_out = fuse_file_out->backing_file;
+
+	/* TODO: Handle changing of in/out files */
+	if (backing_file_out)
+		return vfs_copy_file_range(backing_file_in, fci->off_in, backing_file_out,
+					   fci->off_out, fci->len, fci->flags);
+	else
+		return generic_copy_file_range(file_in, pos_in, file_out, pos_out, len,
+					       flags);
+}
+
+void *fuse_copy_file_range_finalize(struct fuse_args *fa, struct file *file_in, loff_t pos_in,
+				    struct file *file_out, loff_t pos_out, size_t len,
+				    unsigned int flags)
+{
+	return NULL;
+}
+
 int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
 		   struct file *file, loff_t start, loff_t end, int datasync)
 {
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 731e54afd120d..8ba3e914f3d43 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3501,6 +3501,18 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in,
 	bool is_unstable = (!fc->writeback_cache) &&
 			   ((pos_out + len) > inode_out->i_size);
 
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(file_in->f_inode, struct fuse_copy_file_range_io,
+			       fuse_copy_file_range_initialize,
+			       fuse_copy_file_range_backing,
+			       fuse_copy_file_range_finalize,
+			       file_in, pos_in, file_out, pos_out, len, flags);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
+
 	if (fc->no_copy_file_range)
 		return -EOPNOTSUPP;
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 4422752566fc2..fd22f1496f9bd 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1433,6 +1433,25 @@ int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id);
 void *fuse_flush_finalize(struct fuse_args *fa,
 			  struct file *file, fl_owner_t id);
 
+struct fuse_copy_file_range_io {
+	struct fuse_copy_file_range_in fci;
+	struct fuse_write_out fwo;
+};
+
+int fuse_copy_file_range_initialize(struct fuse_args *fa,
+				   struct fuse_copy_file_range_io *fcf,
+				   struct file *file_in, loff_t pos_in,
+				   struct file *file_out, loff_t pos_out,
+				   size_t len, unsigned int flags);
+int fuse_copy_file_range_backing(struct fuse_args *fa,
+				 struct file *file_in, loff_t pos_in,
+				 struct file *file_out, loff_t pos_out,
+				 size_t len, unsigned int flags);
+void *fuse_copy_file_range_finalize(struct fuse_args *fa,
+				    struct file *file_in, loff_t pos_in,
+				    struct file *file_out, loff_t pos_out,
+				    size_t len, unsigned int flags);
+
 int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
 		   struct file *file, loff_t start, loff_t end, int datasync);
 int fuse_fsync_backing(struct fuse_args *fa,
-- 
GitLab


From fdf279db8fe0921dfd273d64fabcece46d8419a2 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Mon, 14 Mar 2022 18:21:02 -0700
Subject: [PATCH 4562/4878] ANDROID: fuse-bpf: support FUSE_LSEEK

Adds support for lseek via fuse-bpf

Bug: 224855060
Test: bpf_test_lseek
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ic282940d53b9bb44a291cb3a5dfe09847b4e5c9a
---
 fs/fuse/backing.c                             | 59 +++++++++++++++++++
 fs/fuse/file.c                                | 11 ++++
 fs/fuse/fuse_i.h                              | 10 ++++
 .../selftests/filesystems/fuse/fd_bpf.c       |  7 +++
 .../selftests/filesystems/fuse/fuse_test.c    | 43 ++++++++++++++
 .../selftests/filesystems/fuse/test_bpf.c     |  7 +++
 6 files changed, 137 insertions(+)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index efd76dc08f3d6..70e2fe3523714 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -403,6 +403,65 @@ void *fuse_flush_finalize(struct fuse_args *fa, struct file *file, fl_owner_t id
 	return NULL;
 }
 
+int fuse_lseek_initialize(struct fuse_args *fa, struct fuse_lseek_io *flio,
+			  struct file *file, loff_t offset, int whence)
+{
+	struct fuse_file *fuse_file = file->private_data;
+
+	flio->fli = (struct fuse_lseek_in) {
+		.fh = fuse_file->fh,
+		.offset = offset,
+		.whence = whence,
+	};
+
+	*fa = (struct fuse_args) {
+		.nodeid = get_node_id(file->f_inode),
+		.opcode = FUSE_LSEEK,
+		.in_numargs = 1,
+		.in_args[0].size = sizeof(flio->fli),
+		.in_args[0].value = &flio->fli,
+		.out_numargs = 1,
+		.out_args[0].size = sizeof(flio->flo),
+		.out_args[0].value = &flio->flo,
+	};
+
+	return 0;
+}
+
+int fuse_lseek_backing(struct fuse_args *fa, struct file *file, loff_t offset, int whence)
+{
+	const struct fuse_lseek_in *fli = fa->in_args[0].value;
+	struct fuse_lseek_out *flo = fa->out_args[0].value;
+	struct fuse_file *fuse_file = file->private_data;
+	struct file *backing_file = fuse_file->backing_file;
+	loff_t ret;
+
+	/* TODO: Handle changing of the file handle */
+	if (offset == 0) {
+		if (whence == SEEK_CUR)
+			return file->f_pos;
+
+		if (whence == SEEK_SET)
+			return vfs_setpos(file, 0, 0);
+	}
+
+	inode_lock(file->f_inode);
+	backing_file->f_pos = file->f_pos;
+	ret = vfs_llseek(backing_file, fli->offset, fli->whence);
+	flo->offset = ret;
+	inode_unlock(file->f_inode);
+	return ret;
+}
+
+void *fuse_lseek_finalize(struct fuse_args *fa, struct file *file, loff_t offset, int whence)
+{
+	struct fuse_lseek_out *flo = fa->out_args[0].value;
+
+	if (!fa->error_in)
+		file->f_pos = flo->offset;
+	return ERR_PTR(flo->offset);
+}
+
 int fuse_copy_file_range_initialize(struct fuse_args *fa, struct fuse_copy_file_range_io *fcf,
 				   struct file *file_in, loff_t pos_in, struct file *file_out,
 				   loff_t pos_out, size_t len, unsigned int flags)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 8ba3e914f3d43..b8a992d0a3fe2 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2738,6 +2738,17 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int whence)
 {
 	loff_t retval;
 	struct inode *inode = file_inode(file);
+#ifdef CONFIG_FUSE_BPF
+	struct fuse_err_ret fer;
+
+	fer = fuse_bpf_backing(inode, struct fuse_lseek_io,
+			       fuse_lseek_initialize,
+			       fuse_lseek_backing,
+			       fuse_lseek_finalize,
+			       file, offset, whence);
+	if (fer.ret)
+		return PTR_ERR(fer.result);
+#endif
 
 	switch (whence) {
 	case SEEK_SET:
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index fd22f1496f9bd..84d2f74f9d9ff 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1433,6 +1433,16 @@ int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id);
 void *fuse_flush_finalize(struct fuse_args *fa,
 			  struct file *file, fl_owner_t id);
 
+struct fuse_lseek_io {
+	struct fuse_lseek_in fli;
+	struct fuse_lseek_out flo;
+};
+
+int fuse_lseek_initialize(struct fuse_args *fa, struct fuse_lseek_io *fli,
+			  struct file *file, loff_t offset, int whence);
+int fuse_lseek_backing(struct fuse_args *fa, struct file *file, loff_t offset, int whence);
+void *fuse_lseek_finalize(struct fuse_args *fa, struct file *file, loff_t offset, int whence);
+
 struct fuse_copy_file_range_io {
 	struct fuse_copy_file_range_in fci;
 	struct fuse_write_out fwo;
diff --git a/tools/testing/selftests/filesystems/fuse/fd_bpf.c b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
index f54d04bbb20cd..f9102058515ff 100644
--- a/tools/testing/selftests/filesystems/fuse/fd_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
@@ -289,6 +289,13 @@ int trace_daemon(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_LSEEK | FUSE_PREFILTER: {
+		const struct fuse_lseek_in *fli = fa->in_args[0].value;
+
+		bpf_printk("lseek type:%d, offset:%lld", fli->whence, fli->offset);
+		return FUSE_BPF_BACKING;
+	}
+
 	default:
 		if (fa->opcode & FUSE_PREFILTER)
 			bpf_printk("prefilter *** UNKNOWN *** opcode: %d",
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 9117b21cc461e..857484b90ae71 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -1450,6 +1450,48 @@ out:
 	return result;
 }
 
+static int bpf_test_lseek(const char *mount_dir)
+{
+	const char *file = "real";
+	const char *test_data = "data";
+	int result = TEST_FAILURE;
+	int src_fd = -1;
+	int bpf_fd = -1;
+	int fuse_dev = -1;
+	int fd = -1;
+
+	TEST(src_fd = open(ft_src, O_DIRECTORY | O_RDONLY | O_CLOEXEC),
+	     src_fd != -1);
+	TEST(fd = openat(src_fd, file, O_CREAT | O_RDWR | O_CLOEXEC, 0777),
+	     fd != -1);
+	TESTEQUAL(write(fd, test_data, strlen(test_data)), strlen(test_data));
+	TESTSYSCALL(close(fd));
+	fd = -1;
+	TESTEQUAL(install_elf_bpf("test_bpf.bpf", "test_trace",
+				  &bpf_fd, NULL, NULL), 0);
+	TESTEQUAL(mount_fuse(mount_dir, bpf_fd, src_fd, &fuse_dev), 0);
+
+	TEST(fd = s_open(s_path(s(mount_dir), s(file)), O_RDONLY | O_CLOEXEC),
+	     fd != -1);
+	TESTEQUAL(lseek(fd, 3, SEEK_SET), 3);
+	TESTEQUAL(bpf_test_trace("lseek"), 0);
+	TESTEQUAL(lseek(fd, 5, SEEK_END), 9);
+	TESTEQUAL(bpf_test_trace("lseek"), 0);
+	TESTEQUAL(lseek(fd, 1, SEEK_CUR), 10);
+	TESTEQUAL(bpf_test_trace("lseek"), 0);
+	TESTEQUAL(lseek(fd, 1, SEEK_DATA), 1);
+	TESTEQUAL(bpf_test_trace("lseek"), 0);
+	result = TEST_SUCCESS;
+out:
+	close(fd);
+	umount(mount_dir);
+	close(fuse_dev);
+	close(bpf_fd);
+	close(src_fd);
+	return result;
+}
+
+
 static int parse_options(int argc, char *const *argv)
 {
 	signed char c;
@@ -1553,6 +1595,7 @@ int main(int argc, char *argv[])
 		MAKE_TEST(readdir_perms_test),
 		MAKE_TEST(inotify_test),
 		MAKE_TEST(bpf_test_statfs),
+		MAKE_TEST(bpf_test_lseek),
 	};
 #undef MAKE_TEST
 
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
index 7d8ef494c589b..8afef42b4657a 100644
--- a/tools/testing/selftests/filesystems/fuse/test_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -346,6 +346,13 @@ int trace_test(struct fuse_args *fa)
 		return FUSE_BPF_BACKING;
 	}
 
+	case FUSE_LSEEK | FUSE_PREFILTER: {
+		const struct fuse_lseek_in *fli = fa->in_args[0].value;
+
+		bpf_printk("lseek type:%d, offset:%lld", fli->whence, fli->offset);
+		return FUSE_BPF_BACKING;
+	}
+
 	default:
 		bpf_printk("Unknown opcode %d", fa->opcode);
 		return 0;
-- 
GitLab


From 60256f0765a03a1acee2032a3da796abf3d54143 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Tue, 15 Mar 2022 17:11:54 -0700
Subject: [PATCH 4563/4878] ANDROID: fuse-bpf: fix special devices

Removes incorrect usage of new_decode_dev

Bug: 217570523
Test: generic/184
Change-Id: Ia9b85c025bb54879196545bcd4c2e42102d5a07f
Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 fs/fuse/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 99b0edfb206c5..ee18e23215935 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -313,8 +313,7 @@ static void fuse_init_inode(struct inode *inode, struct fuse_attr *attr)
 	else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
 		 S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
 		fuse_init_common(inode);
-		init_special_inode(inode, inode->i_mode,
-				   new_decode_dev(attr->rdev));
+		init_special_inode(inode, inode->i_mode, attr->rdev);
 	} else
 		BUG();
 }
-- 
GitLab


From 7fd25d172b0a2a3ef753b9247fe809eff01ddd2c Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 16 Mar 2022 17:06:55 -0700
Subject: [PATCH 4564/4878] ANDROID: fuse-bpf: fix read_iter and write_iter

Properly handle the async case. The existing bpf operations will likely
need to be reworked. Given that they don't allow altering anything as
is, this change just incrementally moves us in the right direction.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Test: generic/467 and fuse_test
Bug: 217570523
Change-Id: I31c0b48bf3d674efecad4bff4ea8b482c4e7da45
---
 fs/fuse/backing.c | 149 ++++++++++++++++++++++++++++++++++++++++------
 fs/fuse/fuse_i.h  |   4 ++
 2 files changed, 136 insertions(+), 17 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 70e2fe3523714..118bd9d12945f 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -13,6 +13,33 @@
 
 #include "../internal.h"
 
+#define FUSE_BPF_IOCB_MASK (IOCB_APPEND | IOCB_DSYNC | IOCB_HIPRI | IOCB_NOWAIT | IOCB_SYNC)
+
+struct fuse_bpf_aio_req {
+	struct kiocb iocb;
+	struct kiocb *iocb_fuse;
+};
+
+static void fuse_file_accessed(struct file *dst_file, struct file *src_file)
+{
+	struct inode *dst_inode;
+	struct inode *src_inode;
+
+	if (dst_file->f_flags & O_NOATIME)
+		return;
+
+	dst_inode = file_inode(dst_file);
+	src_inode = file_inode(src_file);
+
+	if ((!timespec64_equal(&dst_inode->i_mtime, &src_inode->i_mtime) ||
+	     !timespec64_equal(&dst_inode->i_ctime, &src_inode->i_ctime))) {
+		dst_inode->i_mtime = src_inode->i_mtime;
+		dst_inode->i_ctime = src_inode->i_ctime;
+	}
+
+	touch_atime(&dst_file->f_path);
+}
+
 struct bpf_prog *fuse_get_bpf_prog(struct file *file)
 {
 	struct bpf_prog *bpf_prog = ERR_PTR(-EINVAL);
@@ -779,6 +806,33 @@ void *fuse_removexattr_finalize(struct fuse_args *fa,
 	return NULL;
 }
 
+static void fuse_bpf_aio_cleanup_handler(struct fuse_bpf_aio_req *aio_req)
+{
+	struct kiocb *iocb = &aio_req->iocb;
+	struct kiocb *iocb_fuse = aio_req->iocb_fuse;
+
+	if (iocb->ki_flags & IOCB_WRITE) {
+		__sb_writers_acquired(file_inode(iocb->ki_filp)->i_sb,
+				      SB_FREEZE_WRITE);
+		file_end_write(iocb->ki_filp);
+		fuse_copyattr(iocb_fuse->ki_filp, iocb->ki_filp);
+	}
+
+	iocb_fuse->ki_pos = iocb->ki_pos;
+	kfree(aio_req);
+}
+
+static void fuse_bpf_aio_rw_complete(struct kiocb *iocb, long res, long res2)
+{
+	struct fuse_bpf_aio_req *aio_req =
+		container_of(iocb, struct fuse_bpf_aio_req, iocb);
+	struct kiocb *iocb_fuse = aio_req->iocb_fuse;
+
+	fuse_bpf_aio_cleanup_handler(aio_req);
+	iocb_fuse->ki_complete(iocb_fuse, res, res2);
+}
+
+
 int fuse_file_read_iter_initialize(
 		struct fuse_args *fa, struct fuse_read_in *fri,
 		struct kiocb *iocb, struct iov_iter *to)
@@ -820,17 +874,44 @@ int fuse_file_read_iter_backing(struct fuse_args *fa,
 {
 	struct file *file = iocb->ki_filp;
 	struct fuse_file *ff = file->private_data;
-	ssize_t result;
+	ssize_t ret;
+
+	if (!iov_iter_count(to))
+		return 0;
+
+	if ((iocb->ki_flags & IOCB_DIRECT) &&
+	    (!ff->backing_file->f_mapping->a_ops ||
+	     !ff->backing_file->f_mapping->a_ops->direct_IO))
+		return -EINVAL;
 
 	/* TODO This just plain ignores any change to fuse_read_in */
-	result = vfs_iter_read(ff->backing_file, to, &iocb->ki_pos, 0);
+	if (is_sync_kiocb(iocb)) {
+		ret = vfs_iter_read(ff->backing_file, to, &iocb->ki_pos,
+				iocb_to_rw_flags(iocb->ki_flags, FUSE_BPF_IOCB_MASK));
+	} else {
+		struct fuse_bpf_aio_req *aio_req;
+
+		ret = -ENOMEM;
+		aio_req = kzalloc(sizeof(struct fuse_bpf_aio_req), GFP_KERNEL);
+		if (!aio_req)
+			goto out;
+		aio_req->iocb_fuse = iocb;
+		kiocb_clone(&aio_req->iocb, iocb, ff->backing_file);
+		aio_req->iocb.ki_complete = fuse_bpf_aio_rw_complete;
+		ret = vfs_iocb_iter_read(ff->backing_file, &aio_req->iocb, to);
+		if (ret != -EIOCBQUEUED)
+			fuse_bpf_aio_cleanup_handler(aio_req);
+	}
 
-	if (result < 0)
-		return result;
+	if (ret >= 0)
+		fa->out_args[0].size = ret;
 
 	/* TODO Need to point value at the buffer for post-modification */
-	fa->out_args[0].size = result;
-	return result;
+
+out:
+	fuse_file_accessed(file, ff->backing_file);
+
+	return ret;
 }
 
 void *fuse_file_read_iter_finalize(struct fuse_args *fa,
@@ -862,8 +943,8 @@ int fuse_file_write_iter_initialize(
 		.in_args[1].size = fwio->fwi.size,
 		.in_args[1].value = from->kvec->iov_base,
 		.out_numargs = 1,
-		.out_args[0].size = sizeof(fwio->fwo),
-		.out_args[0].value = &fwio->fwo,
+		.out_args[0].size = sizeof(fwio->fwio),
+		.out_args[0].value = &fwio->fwio,
 	};
 
 	return 0;
@@ -874,26 +955,60 @@ int fuse_file_write_iter_backing(struct fuse_args *fa,
 {
 	struct file *file = iocb->ki_filp;
 	struct fuse_file *ff = file->private_data;
-	struct fuse_write_out *fwo = fa->out_args[0].value;
+	struct fuse_write_iter_out *fwio = fa->out_args[0].value;
+	ssize_t ret;
+
+	if (!iov_iter_count(from))
+		return 0;
 
 	/* TODO This just plain ignores any change to fuse_write_in */
-	fwo->size = vfs_iter_write(ff->backing_file, from, &iocb->ki_pos, 0);
+	/* TODO uint32_t seems smaller than ssize_t.... right? */
+	inode_lock(file_inode(file));
+
+	fuse_copyattr(file, ff->backing_file);
+
+	if (is_sync_kiocb(iocb)) {
+		file_start_write(ff->backing_file);
+		ret = vfs_iter_write(ff->backing_file, from, &iocb->ki_pos,
+					   iocb_to_rw_flags(iocb->ki_flags, FUSE_BPF_IOCB_MASK));
+		file_end_write(ff->backing_file);
+
+		/* Must reflect change in size of backing file to upper file */
+		if (ret > 0)
+			fuse_copyattr(file, ff->backing_file);
+	} else {
+		struct fuse_bpf_aio_req *aio_req;
+
+		ret = -ENOMEM;
+		/* TODO get this from a cache? */
+		aio_req = kzalloc(sizeof(struct fuse_bpf_aio_req), GFP_KERNEL);
+		if (!aio_req)
+			goto out;
 
-	/* Must reflect change in size of backing file to upper file */
-	if (fwo->size > 0)
-		fuse_copyattr(file, ff->backing_file);
+		file_start_write(ff->backing_file);
+		__sb_writers_release(file_inode(ff->backing_file)->i_sb, SB_FREEZE_WRITE);
+		aio_req->iocb_fuse = iocb;
+		kiocb_clone(&aio_req->iocb, iocb, ff->backing_file);
+		aio_req->iocb.ki_complete = fuse_bpf_aio_rw_complete;
+		ret = vfs_iocb_iter_write(ff->backing_file, &aio_req->iocb, from);
+		if (ret != -EIOCBQUEUED)
+			fuse_bpf_aio_cleanup_handler(aio_req);
+	}
 
-	if (fwo->size < 0)
-		return fwo->size;
+out:
+	inode_unlock(file_inode(file));
+	fwio->ret = ret;
+	if (ret < 0)
+		return ret;
 	return 0;
 }
 
 void *fuse_file_write_iter_finalize(struct fuse_args *fa,
 		struct kiocb *iocb, struct iov_iter *from)
 {
-	struct fuse_write_out *fwo = fa->out_args[0].value;
+	struct fuse_write_iter_out *fwio = fa->out_args[0].value;
 
-	return ERR_PTR(fwo->size);
+	return ERR_PTR(fwio->ret);
 }
 
 ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma)
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 84d2f74f9d9ff..87f2f2e5c5a89 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1524,9 +1524,13 @@ int fuse_file_read_iter_backing(struct fuse_args *fa,
 void *fuse_file_read_iter_finalize(struct fuse_args *fa,
 		struct kiocb *iocb, struct iov_iter *to);
 
+struct fuse_write_iter_out {
+	uint64_t ret;
+};
 struct fuse_file_write_iter_io {
 	struct fuse_write_in fwi;
 	struct fuse_write_out fwo;
+	struct fuse_write_iter_out fwio;
 };
 
 int fuse_file_write_iter_initialize(
-- 
GitLab


From bb434bbb77fd18bacb3fd2171e66f82eddf6f28c Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Thu, 17 Mar 2022 16:33:15 +0800
Subject: [PATCH 4565/4878] f2fs: initialize sbi->gc_mode explicitly

It needs to initialized sbi->gc_mode to GC_NORMAL explicitly.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index e711d2e0b8d86..20ebd5bc0a05c 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3591,6 +3591,7 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
 	F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
 	F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
 	sbi->cur_victim_sec = NULL_SECNO;
+	sbi->gc_mode = GC_NORMAL;
 	sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
 	sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
 	sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
-- 
GitLab


From 124cc54b229a637e2ff7d70e5099ae4d6187e39f Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 25 Nov 2021 14:25:34 +0000
Subject: [PATCH 4566/4878] UPSTREAM: arm64: entry: Add macro for reading
 symbol addresses from the trampoline

commit b28a8eebe81c186fdb1a0078263b30576c8e1f42 upstream.

The trampoline code needs to use the address of symbols in the wider
kernel, e.g. vectors. PC-relative addressing wouldn't work as the
trampoline code doesn't run at the address the linker expected.

tramp_ventry uses a literal pool, unless CONFIG_RANDOMIZE_BASE is
set, in which case it uses the data page as a literal pool because
the data page can be unmapped when running in user-space, which is
required for CPUs vulnerable to meltdown.

Pull this logic out as a macro, instead of adding a third copy
of it.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1d11f54bb867a6312069bc3fae6f4ceb4ab1fd20
---
 arch/arm64/kernel/entry.S | 36 ++++++++++++++++--------------------
 1 file changed, 16 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 0b9b182e0be3d..b8212b6416a38 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -913,6 +913,15 @@ alternative_else_nop_endif
 	sub	\dst, \dst, PAGE_SIZE
 	.endm
 
+	.macro tramp_data_read_var	dst, var
+#ifdef CONFIG_RANDOMIZE_BASE
+	tramp_data_page		\dst
+	add	\dst, \dst, #:lo12:__entry_tramp_data_\var
+	ldr	\dst, [\dst]
+#else
+	ldr	\dst, =\var
+#endif
+	.endm
 
 #define BHB_MITIGATION_NONE	0
 #define BHB_MITIGATION_LOOP	1
@@ -943,13 +952,8 @@ alternative_else_nop_endif
 	b	.
 2:
 	tramp_map_kernel	x30
-#ifdef CONFIG_RANDOMIZE_BASE
-	tramp_data_page		x30
 alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003
-	ldr	x30, [x30]
-#else
-	ldr	x30, =vectors
-#endif
+	tramp_data_read_var	x30, vectors
 alternative_if_not ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM
 	prfm	plil1strm, [x30, #(1b - \vector_start)]
 alternative_else_nop_endif
@@ -1032,7 +1036,12 @@ SYM_CODE_END(tramp_exit_compat)
 	.pushsection ".rodata", "a"
 	.align PAGE_SHIFT
 SYM_DATA_START(__entry_tramp_data_start)
+__entry_tramp_data_vectors:
 	.quad	vectors
+#ifdef CONFIG_ARM_SDE_INTERFACE
+__entry_tramp_data___sdei_asm_handler:
+	.quad	__sdei_asm_handler
+#endif /* CONFIG_ARM_SDE_INTERFACE */
 SYM_DATA_END(__entry_tramp_data_start)
 	.popsection				// .rodata
 #endif /* CONFIG_RANDOMIZE_BASE */
@@ -1163,13 +1172,7 @@ SYM_CODE_START(__sdei_asm_entry_trampoline)
 	 */
 1:	str	x4, [x1, #(SDEI_EVENT_INTREGS + S_ORIG_ADDR_LIMIT)]
 
-#ifdef CONFIG_RANDOMIZE_BASE
-	tramp_data_page		x4
-	add	x4, x4, #:lo12:__sdei_asm_trampoline_next_handler
-	ldr	x4, [x4]
-#else
-	ldr	x4, =__sdei_asm_handler
-#endif
+	tramp_data_read_var     x4, __sdei_asm_handler
 	br	x4
 SYM_CODE_END(__sdei_asm_entry_trampoline)
 NOKPROBE(__sdei_asm_entry_trampoline)
@@ -1192,13 +1195,6 @@ SYM_CODE_END(__sdei_asm_exit_trampoline)
 NOKPROBE(__sdei_asm_exit_trampoline)
 	.ltorg
 .popsection		// .entry.tramp.text
-#ifdef CONFIG_RANDOMIZE_BASE
-.pushsection ".rodata", "a"
-SYM_DATA_START(__sdei_asm_trampoline_next_handler)
-	.quad	__sdei_asm_handler
-SYM_DATA_END(__sdei_asm_trampoline_next_handler)
-.popsection		// .rodata
-#endif /* CONFIG_RANDOMIZE_BASE */
 #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */
 
 /*
-- 
GitLab


From 910e14e7d00119a382bb22c3c40f2fd7db3bc1e4 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 23 Nov 2021 18:29:25 +0000
Subject: [PATCH 4567/4878] UPSTREAM: arm64: Add percpu vectors for EL1

commit bd09128d16fac3c34b80bd6a29088ac632e8ce09 upstream.

The Spectre-BHB workaround adds a firmware call to the vectors. This
is needed on some CPUs, but not others. To avoid the unaffected CPU in
a big/little pair from making the firmware call, create per cpu vectors.

The per-cpu vectors only apply when returning from EL0.

Systems using KPTI can use the canonical 'full-fat' vectors directly at
EL1, the trampoline exit code will switch to this_cpu_vector on exit to
EL0. Systems not using KPTI should always use this_cpu_vector.

this_cpu_vector will point at a vector in tramp_vecs or
__bp_harden_el1_vectors, depending on whether KPTI is in use.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie96a6896e26d54d09143ec668a0bdfbf21fa2618
---
 arch/arm64/include/asm/vectors.h | 27 +++++++++++++++++++++++++++
 arch/arm64/kernel/cpufeature.c   | 11 +++++++++++
 arch/arm64/kernel/entry.S        | 12 ++++++------
 arch/arm64/kvm/hyp/vhe/switch.c  | 10 ++++++++--
 4 files changed, 52 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
index 16ca742603753..3f76dfd9e0744 100644
--- a/arch/arm64/include/asm/vectors.h
+++ b/arch/arm64/include/asm/vectors.h
@@ -5,6 +5,15 @@
 #ifndef __ASM_VECTORS_H
 #define __ASM_VECTORS_H
 
+#include <linux/bug.h>
+#include <linux/percpu.h>
+
+#include <asm/fixmap.h>
+
+extern char vectors[];
+extern char tramp_vectors[];
+extern char __bp_harden_el1_vectors[];
+
 /*
  * Note: the order of this enum corresponds to two arrays in entry.S:
  * tramp_vecs and __bp_harden_el1_vectors. By default the canonical
@@ -31,4 +40,22 @@ enum arm64_bp_harden_el1_vectors {
 	EL1_VECTOR_KPTI,
 };
 
+/* The vectors to use on return from EL0. e.g. to remap the kernel */
+DECLARE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector);
+
+#ifndef CONFIG_UNMAP_KERNEL_AT_EL0
+#define TRAMP_VALIAS	0
+#endif
+
+static inline const char *
+arm64_get_bp_hardening_vector(enum arm64_bp_harden_el1_vectors slot)
+{
+	if (arm64_kernel_unmapped_at_el0())
+		return (char *)TRAMP_VALIAS + SZ_2K * slot;
+
+	WARN_ON_ONCE(slot == EL1_VECTOR_KPTI);
+
+	return __bp_harden_el1_vectors + SZ_2K * slot;
+}
+
 #endif /* __ASM_VECTORS_H */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index d8a61c8e2cd8d..8718b955283a5 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -65,6 +65,7 @@
 #include <linux/bsearch.h>
 #include <linux/cpumask.h>
 #include <linux/crash_dump.h>
+#include <linux/percpu.h>
 #include <linux/sort.h>
 #include <linux/stop_machine.h>
 #include <linux/sysfs.h>
@@ -72,6 +73,7 @@
 #include <linux/mm.h>
 #include <linux/cpu.h>
 #include <linux/kasan.h>
+
 #include <asm/cpu.h>
 #include <asm/cpufeature.h>
 #include <asm/cpu_ops.h>
@@ -82,6 +84,7 @@
 #include <asm/processor.h>
 #include <asm/sysreg.h>
 #include <asm/traps.h>
+#include <asm/vectors.h>
 #include <asm/virt.h>
 
 /* Kernel representation of AT_HWCAP and AT_HWCAP2 */
@@ -107,6 +110,8 @@ DECLARE_BITMAP(boot_capabilities, ARM64_NPATCHABLE);
 bool arm64_use_ng_mappings = false;
 EXPORT_SYMBOL(arm64_use_ng_mappings);
 
+DEFINE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector) = vectors;
+
 /*
  * Permit PER_LINUX32 and execve() of 32-bit binaries even if not all CPUs
  * support it?
@@ -1563,6 +1568,12 @@ kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
 
 	int cpu = smp_processor_id();
 
+	if (__this_cpu_read(this_cpu_vector) == vectors) {
+		const char *v = arm64_get_bp_hardening_vector(EL1_VECTOR_KPTI);
+
+		__this_cpu_write(this_cpu_vector, v);
+	}
+
 	/*
 	 * We don't need to rewrite the page-tables if either we've done
 	 * it already or we have KASLR enabled and therefore have not
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index b8212b6416a38..08a82f4c81500 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -63,7 +63,6 @@
 	.macro kernel_ventry, el, label, regsize = 64
 	.align 7
 .Lventry_start\@:
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
 	.if	\el == 0
 	/*
 	 * This must be the first instruction of the EL0 vector entries. It is
@@ -78,7 +77,6 @@
 	.endif
 .Lskip_tramp_vectors_cleanup\@:
 	.endif
-#endif
 
 	sub	sp, sp, #S_FRAME_SIZE
 #ifdef CONFIG_VMAP_STACK
@@ -979,10 +977,10 @@ alternative_else_nop_endif
 	.endm
 
 	.macro tramp_exit, regsize = 64
-	adr	x30, tramp_vectors
-#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
-	add	x30, x30, SZ_4K
-#endif
+	tramp_data_read_var	x30, this_cpu_vector
+	this_cpu_offset x29
+	ldr	x30, [x30, x29]
+
 	msr	vbar_el1, x30
 	ldr	lr, [sp, #S_LR]
 	tramp_unmap_kernel	x29
@@ -1042,6 +1040,8 @@ __entry_tramp_data_vectors:
 __entry_tramp_data___sdei_asm_handler:
 	.quad	__sdei_asm_handler
 #endif /* CONFIG_ARM_SDE_INTERFACE */
+__entry_tramp_data_this_cpu_vector:
+	.quad	this_cpu_vector
 SYM_DATA_END(__entry_tramp_data_start)
 	.popsection				// .rodata
 #endif /* CONFIG_RANDOMIZE_BASE */
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 11d053fdd604b..54af47005e456 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -10,6 +10,7 @@
 #include <linux/kvm_host.h>
 #include <linux/types.h>
 #include <linux/jump_label.h>
+#include <linux/percpu.h>
 #include <uapi/linux/psci.h>
 
 #include <kvm/arm_psci.h>
@@ -24,6 +25,8 @@
 #include <asm/fpsimd.h>
 #include <asm/debug-monitors.h>
 #include <asm/processor.h>
+#include <asm/thread_info.h>
+#include <asm/vectors.h>
 
 /* VHE specific context */
 DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data);
@@ -67,7 +70,7 @@ NOKPROBE_SYMBOL(__activate_traps);
 
 static void __deactivate_traps(struct kvm_vcpu *vcpu)
 {
-	extern char vectors[];	/* kernel exception vectors */
+	const char *host_vectors = vectors;
 
 	___deactivate_traps(vcpu);
 
@@ -81,7 +84,10 @@ static void __deactivate_traps(struct kvm_vcpu *vcpu)
 	asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_SPECULATIVE_AT));
 
 	write_sysreg(CPACR_EL1_DEFAULT, cpacr_el1);
-	write_sysreg(vectors, vbar_el1);
+
+	if (!arm64_kernel_unmapped_at_el0())
+		host_vectors = __this_cpu_read(this_cpu_vector);
+	write_sysreg(host_vectors, vbar_el1);
 }
 NOKPROBE_SYMBOL(__deactivate_traps);
 
-- 
GitLab


From decde029b601e1a8b09d94f0864a1f518a140fb3 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 8 Feb 2022 16:08:13 +0000
Subject: [PATCH 4568/4878] UPSTREAM: arm64: proton-pack: Report Spectre-BHB
 vulnerabilities as part of Spectre-v2

commit dee435be76f4117410bbd90573a881fd33488f37 upstream.

Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation as part of
a spectre-v2 attack. This is not mitigated by CSV2, meaning CPUs that
previously reported 'Not affected' are now moderately mitigated by CSV2.

Update the value in /sys/devices/system/cpu/vulnerabilities/spectre_v2
to also show the state of the BHB mitigation.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3a6aeb077869dc310d420c27f6752dfeacf438a6
---
 arch/arm64/include/asm/spectre.h |  1 +
 arch/arm64/kernel/proton-pack.c  | 36 ++++++++++++++++++++++++++++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/spectre.h b/arch/arm64/include/asm/spectre.h
index f62ca39da6c5a..84b174b57aae5 100644
--- a/arch/arm64/include/asm/spectre.h
+++ b/arch/arm64/include/asm/spectre.h
@@ -92,6 +92,7 @@ void spectre_v4_enable_mitigation(const struct arm64_cpu_capabilities *__unused)
 void spectre_v4_enable_task_mitigation(struct task_struct *tsk);
 
 enum mitigation_state arm64_get_meltdown_state(void);
+enum mitigation_state arm64_get_spectre_bhb_state(void);
 
 #endif	/* __ASSEMBLY__ */
 #endif	/* __ASM_SPECTRE_H */
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 9394f21d75663..b4bef7707e19d 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -96,14 +96,39 @@ static bool spectre_v2_mitigations_off(void)
 	return ret;
 }
 
+static const char *get_bhb_affected_string(enum mitigation_state bhb_state)
+{
+	switch (bhb_state) {
+	case SPECTRE_UNAFFECTED:
+		return "";
+	default:
+	case SPECTRE_VULNERABLE:
+		return ", but not BHB";
+	case SPECTRE_MITIGATED:
+		return ", BHB";
+	}
+}
+
 ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
+	enum mitigation_state bhb_state = arm64_get_spectre_bhb_state();
+	const char *bhb_str = get_bhb_affected_string(bhb_state);
+	const char *v2_str = "Branch predictor hardening";
+
 	switch (spectre_v2_state) {
 	case SPECTRE_UNAFFECTED:
-		return sprintf(buf, "Not affected\n");
+		if (bhb_state == SPECTRE_UNAFFECTED)
+			return sprintf(buf, "Not affected\n");
+
+		/*
+		 * Platforms affected by Spectre-BHB can't report
+		 * "Not affected" for Spectre-v2.
+		 */
+		v2_str = "CSV2";
+		fallthrough;
 	case SPECTRE_MITIGATED:
-		return sprintf(buf, "Mitigation: Branch predictor hardening\n");
+		return sprintf(buf, "Mitigation: %s%s\n", v2_str, bhb_str);
 	case SPECTRE_VULNERABLE:
 		fallthrough;
 	default:
@@ -770,3 +795,10 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
 		return -ENODEV;
 	}
 }
+
+static enum mitigation_state spectre_bhb_state;
+
+enum mitigation_state arm64_get_spectre_bhb_state(void)
+{
+	return spectre_bhb_state;
+}
-- 
GitLab


From 26e71fb73c4027d77a3212c8c9eff7e955e6ec45 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 16 Nov 2021 15:06:19 +0000
Subject: [PATCH 4569/4878] UPSTREAM: KVM: arm64: Allow indirect vectors to be
 used without SPECTRE_V3A

CPUs vulnerable to Spectre-BHB either need to make an SMC-CC firmware
call from the vectors, or run a sequence of branches. This gets added
to the hyp vectors. If there is no support for arch-workaround-1 in
firmware, the indirect vector will be used.

kvm_init_vector_slots() only initialises the two indirect slots if
the platform is vulnerable to Spectre-v3a. pKVM's hyp_map_vectors()
only initialises __hyp_bp_vect_base if the platform is vulnerable to
Spectre-v3a.

As there are about to more users of the indirect vectors, ensure
their entries in hyp_spectre_vector_selector[] are always initialised,
and __hyp_bp_vect_base defaults to the regular VA mapping.

The Spectre-v3a check is moved to a helper
kvm_system_needs_idmapped_vectors(), and merged with the code
that creates the hyp mappings.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
(cherry picked from commit 5bdf3437603d4af87f9c7f424b0c8aeed2420745)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6ad747d012e2d9965a9450e62bebd5bfe1605316
---
 arch/arm64/include/asm/kvm_host.h | 5 +++++
 arch/arm64/kvm/arm.c              | 5 +----
 arch/arm64/kvm/hyp/nvhe/mm.c      | 4 +++-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 71925671ea738..08bf6cc097431 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -870,6 +870,11 @@ static inline void kvm_init_host_cpu_context(struct kvm_cpu_context *cpu_ctxt)
 	ctxt_sys_reg(cpu_ctxt, MPIDR_EL1) = read_cpuid_mpidr();
 }
 
+static inline bool kvm_system_needs_idmapped_vectors(void)
+{
+	return cpus_have_const_cap(ARM64_SPECTRE_V3A);
+}
+
 void kvm_arm_vcpu_ptrauth_trap(struct kvm_vcpu *vcpu);
 
 static inline void kvm_arch_hardware_unsetup(void) {}
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index a353067f526b2..26d52c39c15f9 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -1582,10 +1582,7 @@ static int kvm_init_vector_slots(void)
 	base = kern_hyp_va(kvm_ksym_ref(__bp_harden_hyp_vecs));
 	kvm_init_vector_slot(base, HYP_VECTOR_SPECTRE_DIRECT);
 
-	if (!cpus_have_const_cap(ARM64_SPECTRE_V3A))
-		return 0;
-
-	if (!has_vhe()) {
+	if (kvm_system_needs_idmapped_vectors() && !has_vhe()) {
 		err = create_hyp_exec_mappings(__pa_symbol(__bp_harden_hyp_vecs),
 					       __BP_HARDEN_HYP_VECS_SZ, &base);
 		if (err)
diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 802ff8c1f2e32..6239fea7496b9 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -183,8 +183,10 @@ int hyp_map_vectors(void)
 	phys_addr_t phys;
 	void *bp_base;
 
-	if (!cpus_have_const_cap(ARM64_SPECTRE_V3A))
+	if (!kvm_system_needs_idmapped_vectors()) {
+		__hyp_bp_vect_base = __bp_harden_hyp_vecs;
 		return 0;
+	}
 
 	phys = __hyp_pa(__bp_harden_hyp_vecs);
 	bp_base = (void *)__pkvm_create_private_mapping(phys,
-- 
GitLab


From 0777e59b105c05cb46ea877130e672223e87e0e8 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Wed, 9 Mar 2022 12:16:34 -0700
Subject: [PATCH 4570/4878] UPSTREAM: arm64: Do not include __READ_ONCE() block
 in assembly files

When building arm64 defconfig + CONFIG_LTO_CLANG_{FULL,THIN}=y after
commit 558c303c9734 ("arm64: Mitigate spectre style branch history side
channels"), the following error occurs:

  <instantiation>:4:2: error: invalid fixup for movz/movk instruction
   mov w0, #ARM_SMCCC_ARCH_WORKAROUND_3
   ^

Marc figured out that moving "#include <linux/init.h>" in
include/linux/arm-smccc.h into a !__ASSEMBLY__ block resolves it. The
full include chain with CONFIG_LTO=y from include/linux/arm-smccc.h:

include/linux/init.h
include/linux/compiler.h
arch/arm64/include/asm/rwonce.h
arch/arm64/include/asm/alternative-macros.h
arch/arm64/include/asm/assembler.h

The asm/alternative-macros.h include in asm/rwonce.h only happens when
CONFIG_LTO is set, which ultimately casues asm/assembler.h to be
included before the definition of ARM_SMCCC_ARCH_WORKAROUND_3. As a
result, the preprocessor does not expand ARM_SMCCC_ARCH_WORKAROUND_3 in
__mitigate_spectre_bhb_fw, which results in the error above.

Avoid this problem by just avoiding the CONFIG_LTO=y __READ_ONCE() block
in asm/rwonce.h with assembly files, as nothing in that block is useful
to assembly files, which allows ARM_SMCCC_ARCH_WORKAROUND_3 to be
properly expanded with CONFIG_LTO=y builds.

Bug: 215557547
Fixes: e35123d83ee3 ("arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y")
Cc: <stable@vger.kernel.org> # 5.11.x
Link: https://lore.kernel.org/r/20220309155716.3988480-1-maz@kernel.org/
Reported-by: Marc Zyngier <maz@kernel.org>
Acked-by: James Morse <james.morse@arm.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220309191633.2307110-1-nathan@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 52c9f93a9c482251cb0d224faa602ba26d462be8)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3beec784b16c9b094bc2e86466f2dadddc3ec6a7
---
 arch/arm64/include/asm/rwonce.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/rwonce.h b/arch/arm64/include/asm/rwonce.h
index 1bce62fa908a3..56f7b1d4d54b9 100644
--- a/arch/arm64/include/asm/rwonce.h
+++ b/arch/arm64/include/asm/rwonce.h
@@ -5,7 +5,7 @@
 #ifndef __ASM_RWONCE_H
 #define __ASM_RWONCE_H
 
-#ifdef CONFIG_LTO
+#if defined(CONFIG_LTO) && !defined(__ASSEMBLY__)
 
 #include <linux/compiler_types.h>
 #include <asm/alternative-macros.h>
@@ -66,7 +66,7 @@
 })
 
 #endif	/* !BUILD_VDSO */
-#endif	/* CONFIG_LTO */
+#endif	/* CONFIG_LTO && !__ASSEMBLY__ */
 
 #include <asm-generic/rwonce.h>
 
-- 
GitLab


From a1736e3ccd78ceb797c3bc1b99b9114c2c00f450 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Wed, 10 Nov 2021 14:48:00 +0000
Subject: [PATCH 4571/4878] UPSTREAM: arm64: Mitigate spectre style branch
 history side channels

commit 558c303c9734af5a813739cd284879227f7297d2 upstream.

Speculation attacks against some high-performance processors can
make use of branch history to influence future speculation.
When taking an exception from user-space, a sequence of branches
or a firmware call overwrites or invalidates the branch history.

The sequence of branches is added to the vectors, and should appear
before the first indirect branch. For systems using KPTI the sequence
is added to the kpti trampoline where it has a free register as the exit
from the trampoline is via a 'ret'. For systems not using KPTI, the same
register tricks are used to free up a register in the vectors.

For the firmware call, arch-workaround-3 clobbers 4 registers, so
there is no choice but to save them to the EL1 stack. This only happens
for entry from EL0, so if we take an exception due to the stack access,
it will not become re-entrant.

For KVM, the existing branch-predictor-hardening vectors are used.
When a spectre version of these vectors is in use, the firmware call
is sufficient to mitigate against Spectre-BHB. For the non-spectre
versions, the sequence of branches is added to the indirect vector.

Bug: 215557547
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Change-Id: I7d1f5a9767d1dbc9e6ef363ca3bf7bffe91c402c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---
 arch/arm64/Kconfig                  |   9 +
 arch/arm64/include/asm/assembler.h  |  14 +-
 arch/arm64/include/asm/cpucaps.h    |   3 +-
 arch/arm64/include/asm/cpufeature.h |  16 ++
 arch/arm64/include/asm/cputype.h    |   8 +
 arch/arm64/include/asm/spectre.h    |   4 +-
 arch/arm64/include/asm/sysreg.h     |   1 +
 arch/arm64/include/asm/vectors.h    |   5 +
 arch/arm64/kernel/cpu_errata.c      |   7 +
 arch/arm64/kernel/image-vars.h      |   3 +
 arch/arm64/kernel/proton-pack.c     | 294 ++++++++++++++++++++++++++++
 arch/arm64/kvm/hyp/hyp-entry.S      |   8 +
 12 files changed, 369 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5e46425a6023c..d29a255f8cdd8 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1232,6 +1232,15 @@ config UNMAP_KERNEL_AT_EL0
 
 	  If unsure, say Y.
 
+config MITIGATE_SPECTRE_BRANCH_HISTORY
+	bool "Mitigate Spectre style attacks against branch history" if EXPERT
+	default y
+	help
+	  Speculation attacks against some high-performance processors can
+	  make use of branch history to influence future speculation.
+	  When taking an exception from user-space, a sequence of branches
+	  or a firmware call overwrites the branch history.
+
 config RODATA_FULL_DEFAULT_ENABLED
 	bool "Apply r/o permissions of VM areas also to their linear aliases"
 	default y
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 1ff83dec6b7ef..ca036f63366dc 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -819,7 +819,9 @@ alternative_endif
 
 	.macro __mitigate_spectre_bhb_loop      tmp
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
-	mov	\tmp, #32
+alternative_cb  spectre_bhb_patch_loop_iter
+	mov	\tmp, #32		// Patched to correct the immediate
+alternative_cb_end
 .Lspectre_bhb_loop\@:
 	b	. + 4
 	subs	\tmp, \tmp, #1
@@ -828,6 +830,16 @@ alternative_endif
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 	.endm
 
+	.macro mitigate_spectre_bhb_loop	tmp
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+alternative_cb	spectre_bhb_patch_loop_mitigation_enable
+	b	.L_spectre_bhb_loop_done\@	// Patched to NOP
+alternative_cb_end
+	__mitigate_spectre_bhb_loop	\tmp
+.L_spectre_bhb_loop_done\@:
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	.endm
+
 	/* Save/restores x0-x3 to the stack */
 	.macro __mitigate_spectre_bhb_fw
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index 4426686cd83db..c9cc0fb6fc0de 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -71,8 +71,9 @@
 #define ARM64_KVM_PROTECTED_MODE		60
 #define ARM64_WORKAROUND_TSB_FLUSH_FAILURE	61
 #define ARM64_MTE_ASYMM				62
+#define ARM64_SPECTRE_BHB			63
 
-/* kabi: reserve 62 - 76 for future cpu capabilities */
+/* kabi: reserve 64 - 76 for future cpu capabilities */
 #define ARM64_NCAPS				76
 
 #endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index b54bbd219f096..c7fbddbe91582 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -630,6 +630,22 @@ static inline bool cpu_supports_mixed_endian_el0(void)
 	return id_aa64mmfr0_mixed_endian_el0(read_cpuid(ID_AA64MMFR0_EL1));
 }
 
+
+static inline bool supports_csv2p3(int scope)
+{
+	u64 pfr0;
+	u8 csv2_val;
+
+	if (scope == SCOPE_LOCAL_CPU)
+		pfr0 = read_sysreg_s(SYS_ID_AA64PFR0_EL1);
+	else
+		pfr0 = read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1);
+
+	csv2_val = cpuid_feature_extract_unsigned_field(pfr0,
+							ID_AA64PFR0_CSV2_SHIFT);
+	return csv2_val == 3;
+}
+
 const struct cpumask *system_32bit_el0_cpumask(void);
 DECLARE_STATIC_KEY_FALSE(arm64_mismatched_32bit_el0);
 
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 999b9149f8568..bfbf0c4c7c5e5 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -73,10 +73,14 @@
 #define ARM_CPU_PART_CORTEX_A76		0xD0B
 #define ARM_CPU_PART_NEOVERSE_N1	0xD0C
 #define ARM_CPU_PART_CORTEX_A77		0xD0D
+#define ARM_CPU_PART_NEOVERSE_V1	0xD40
+#define ARM_CPU_PART_CORTEX_A78		0xD41
+#define ARM_CPU_PART_CORTEX_X1		0xD44
 #define ARM_CPU_PART_CORTEX_A510	0xD46
 #define ARM_CPU_PART_CORTEX_A710	0xD47
 #define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
+#define ARM_CPU_PART_CORTEX_A78C	0xD4B
 
 #define APM_CPU_PART_POTENZA		0x000
 
@@ -117,10 +121,14 @@
 #define MIDR_CORTEX_A76	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A76)
 #define MIDR_NEOVERSE_N1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N1)
 #define MIDR_CORTEX_A77	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
+#define MIDR_NEOVERSE_V1	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V1)
+#define MIDR_CORTEX_A78	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78)
+#define MIDR_CORTEX_X1	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X1)
 #define MIDR_CORTEX_A510 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A510)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
 #define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
+#define MIDR_CORTEX_A78C	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)
diff --git a/arch/arm64/include/asm/spectre.h b/arch/arm64/include/asm/spectre.h
index 84b174b57aae5..c04d01dd4457e 100644
--- a/arch/arm64/include/asm/spectre.h
+++ b/arch/arm64/include/asm/spectre.h
@@ -93,6 +93,8 @@ void spectre_v4_enable_task_mitigation(struct task_struct *tsk);
 
 enum mitigation_state arm64_get_meltdown_state(void);
 enum mitigation_state arm64_get_spectre_bhb_state(void);
-
+bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry, int scope);
+u8 spectre_bhb_loop_affected(int scope);
+void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *__unused);
 #endif	/* __ASSEMBLY__ */
 #endif	/* __ASM_SPECTRE_H */
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 6c830609b8099..d96d999950bd6 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -892,6 +892,7 @@
 #endif
 
 /* id_aa64mmfr1 */
+#define ID_AA64MMFR1_ECBHB_SHIFT	60
 #define ID_AA64MMFR1_AFP_SHIFT		44
 #define ID_AA64MMFR1_ETS_SHIFT		36
 #define ID_AA64MMFR1_TWED_SHIFT		32
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
index 3f76dfd9e0744..1f65c37dc653b 100644
--- a/arch/arm64/include/asm/vectors.h
+++ b/arch/arm64/include/asm/vectors.h
@@ -40,6 +40,11 @@ enum arm64_bp_harden_el1_vectors {
 	EL1_VECTOR_KPTI,
 };
 
+#ifndef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+#define EL1_VECTOR_BHB_LOOP		-1
+#define EL1_VECTOR_BHB_FW		-1
+#endif /* !CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+
 /* The vectors to use on return from EL0. e.g. to remap the kernel */
 DECLARE_PER_CPU_READ_MOSTLY(const char *, this_cpu_vector);
 
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 7c6d59c4f0993..e458bf3e9e8d2 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -478,6 +478,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 		.matches = has_spectre_v4,
 		.cpu_enable = spectre_v4_enable_mitigation,
 	},
+	{
+		.desc = "Spectre-BHB",
+		.capability = ARM64_SPECTRE_BHB,
+		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
+		.matches = is_spectre_bhb_affected,
+		.cpu_enable = spectre_bhb_enable_mitigation,
+	},
 #ifdef CONFIG_ARM64_ERRATUM_1418040
 	{
 		.desc = "ARM erratum 1418040",
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index 27a4507fe8126..c6f361fbf082a 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -66,6 +66,9 @@ KVM_NVHE_ALIAS(kvm_patch_vector_branch);
 KVM_NVHE_ALIAS(kvm_update_va_mask);
 KVM_NVHE_ALIAS(kvm_get_kimage_voffset);
 KVM_NVHE_ALIAS(kvm_compute_final_ctr_el0);
+KVM_NVHE_ALIAS(spectre_bhb_patch_loop_iter);
+KVM_NVHE_ALIAS(spectre_bhb_patch_loop_mitigation_enable);
+KVM_NVHE_ALIAS(spectre_bhb_patch_wa3);
 
 /* Global kernel state accessed by nVHE hyp code. */
 KVM_NVHE_ALIAS(kvm_vgic_global_state);
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index b4bef7707e19d..fbbcd1d2eb192 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -24,9 +24,11 @@
 #include <linux/prctl.h>
 #include <linux/sched/task_stack.h>
 
+#include <asm/debug-monitors.h>
 #include <asm/insn.h>
 #include <asm/spectre.h>
 #include <asm/traps.h>
+#include <asm/vectors.h>
 #include <asm/virt.h>
 
 /*
@@ -796,9 +798,301 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
 	}
 }
 
+/*
+ * Spectre BHB.
+ *
+ * A CPU is either:
+ * - Mitigated by a branchy loop a CPU specific number of times, and listed
+ *   in our "loop mitigated list".
+ * - Mitigated in software by the firmware Spectre v2 call.
+ * - Has the 'Exception Clears Branch History Buffer' (ECBHB) feature, so no
+ *   software mitigation in the vectors is needed.
+ * - Has CSV2.3, so is unaffected.
+ */
 static enum mitigation_state spectre_bhb_state;
 
 enum mitigation_state arm64_get_spectre_bhb_state(void)
 {
 	return spectre_bhb_state;
 }
+
+enum bhb_mitigation_bits {
+	BHB_LOOP,
+	BHB_FW,
+	BHB_HW,
+};
+static unsigned long system_bhb_mitigations;
+
+/*
+ * This must be called with SCOPE_LOCAL_CPU for each type of CPU, before any
+ * SCOPE_SYSTEM call will give the right answer.
+ */
+u8 spectre_bhb_loop_affected(int scope)
+{
+	u8 k = 0;
+	static u8 max_bhb_k;
+
+	if (scope == SCOPE_LOCAL_CPU) {
+		static const struct midr_range spectre_bhb_k32_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
+			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
+			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
+			{},
+		};
+		static const struct midr_range spectre_bhb_k24_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
+			MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
+			{},
+		};
+		static const struct midr_range spectre_bhb_k8_list[] = {
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
+			MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
+			{},
+		};
+
+		if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k32_list))
+			k = 32;
+		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k24_list))
+			k = 24;
+		else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k8_list))
+			k =  8;
+
+		max_bhb_k = max(max_bhb_k, k);
+	} else {
+		k = max_bhb_k;
+	}
+
+	return k;
+}
+
+static enum mitigation_state spectre_bhb_get_cpu_fw_mitigation_state(void)
+{
+	int ret;
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
+			     ARM_SMCCC_ARCH_WORKAROUND_3, &res);
+
+	ret = res.a0;
+	switch (ret) {
+	case SMCCC_RET_SUCCESS:
+		return SPECTRE_MITIGATED;
+	case SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED:
+		return SPECTRE_UNAFFECTED;
+	default:
+		fallthrough;
+	case SMCCC_RET_NOT_SUPPORTED:
+		return SPECTRE_VULNERABLE;
+	}
+}
+
+static bool is_spectre_bhb_fw_affected(int scope)
+{
+	static bool system_affected;
+	enum mitigation_state fw_state;
+	bool has_smccc = arm_smccc_1_1_get_conduit() != SMCCC_CONDUIT_NONE;
+	static const struct midr_range spectre_bhb_firmware_mitigated_list[] = {
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A75),
+		{},
+	};
+	bool cpu_in_list = is_midr_in_range_list(read_cpuid_id(),
+					 spectre_bhb_firmware_mitigated_list);
+
+	if (scope != SCOPE_LOCAL_CPU)
+		return system_affected;
+
+	fw_state = spectre_bhb_get_cpu_fw_mitigation_state();
+	if (cpu_in_list || (has_smccc && fw_state == SPECTRE_MITIGATED)) {
+		system_affected = true;
+		return true;
+	}
+
+	return false;
+}
+
+static bool supports_ecbhb(int scope)
+{
+	u64 mmfr1;
+
+	if (scope == SCOPE_LOCAL_CPU)
+		mmfr1 = read_sysreg_s(SYS_ID_AA64MMFR1_EL1);
+	else
+		mmfr1 = read_sanitised_ftr_reg(SYS_ID_AA64MMFR1_EL1);
+
+	return cpuid_feature_extract_unsigned_field(mmfr1,
+						    ID_AA64MMFR1_ECBHB_SHIFT);
+}
+
+bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry,
+			     int scope)
+{
+	WARN_ON(scope != SCOPE_LOCAL_CPU || preemptible());
+
+	if (supports_csv2p3(scope))
+		return false;
+
+	if (spectre_bhb_loop_affected(scope))
+		return true;
+
+	if (is_spectre_bhb_fw_affected(scope))
+		return true;
+
+	return false;
+}
+
+static void this_cpu_set_vectors(enum arm64_bp_harden_el1_vectors slot)
+{
+	const char *v = arm64_get_bp_hardening_vector(slot);
+
+	if (slot < 0)
+		return;
+
+	__this_cpu_write(this_cpu_vector, v);
+
+	/*
+	 * When KPTI is in use, the vectors are switched when exiting to
+	 * user-space.
+	 */
+	if (arm64_kernel_unmapped_at_el0())
+		return;
+
+	write_sysreg(v, vbar_el1);
+	isb();
+}
+
+void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry)
+{
+	bp_hardening_cb_t cpu_cb;
+	enum mitigation_state fw_state, state = SPECTRE_VULNERABLE;
+	struct bp_hardening_data *data = this_cpu_ptr(&bp_hardening_data);
+
+	if (!is_spectre_bhb_affected(entry, SCOPE_LOCAL_CPU))
+		return;
+
+	if (arm64_get_spectre_v2_state() == SPECTRE_VULNERABLE) {
+		/* No point mitigating Spectre-BHB alone. */
+	} else if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY)) {
+		pr_info_once("spectre-bhb mitigation disabled by compile time option\n");
+	} else if (cpu_mitigations_off()) {
+		pr_info_once("spectre-bhb mitigation disabled by command line option\n");
+	} else if (supports_ecbhb(SCOPE_LOCAL_CPU)) {
+		state = SPECTRE_MITIGATED;
+		set_bit(BHB_HW, &system_bhb_mitigations);
+	} else if (spectre_bhb_loop_affected(SCOPE_LOCAL_CPU)) {
+		/*
+		 * Ensure KVM uses the indirect vector which will have the
+		 * branchy-loop added. A57/A72-r0 will already have selected
+		 * the spectre-indirect vector, which is sufficient for BHB
+		 * too.
+		 */
+		if (!data->slot)
+			data->slot = HYP_VECTOR_INDIRECT;
+
+		this_cpu_set_vectors(EL1_VECTOR_BHB_LOOP);
+		state = SPECTRE_MITIGATED;
+		set_bit(BHB_LOOP, &system_bhb_mitigations);
+	} else if (is_spectre_bhb_fw_affected(SCOPE_LOCAL_CPU)) {
+		fw_state = spectre_bhb_get_cpu_fw_mitigation_state();
+		if (fw_state == SPECTRE_MITIGATED) {
+			/*
+			 * Ensure KVM uses one of the spectre bp_hardening
+			 * vectors. The indirect vector doesn't include the EL3
+			 * call, so needs upgrading to
+			 * HYP_VECTOR_SPECTRE_INDIRECT.
+			 */
+			if (!data->slot || data->slot == HYP_VECTOR_INDIRECT)
+				data->slot += 1;
+
+			this_cpu_set_vectors(EL1_VECTOR_BHB_FW);
+
+			/*
+			 * The WA3 call in the vectors supersedes the WA1 call
+			 * made during context-switch. Uninstall any firmware
+			 * bp_hardening callback.
+			 */
+			cpu_cb = spectre_v2_get_sw_mitigation_cb();
+			if (__this_cpu_read(bp_hardening_data.fn) != cpu_cb)
+				__this_cpu_write(bp_hardening_data.fn, NULL);
+
+			state = SPECTRE_MITIGATED;
+			set_bit(BHB_FW, &system_bhb_mitigations);
+		}
+	}
+
+	update_mitigation_state(&spectre_bhb_state, state);
+}
+
+/* Patched to NOP when enabled */
+void noinstr spectre_bhb_patch_loop_mitigation_enable(struct alt_instr *alt,
+						     __le32 *origptr,
+						      __le32 *updptr, int nr_inst)
+{
+	BUG_ON(nr_inst != 1);
+
+	if (test_bit(BHB_LOOP, &system_bhb_mitigations))
+		*updptr++ = cpu_to_le32(aarch64_insn_gen_nop());
+}
+
+/* Patched to NOP when enabled */
+void noinstr spectre_bhb_patch_fw_mitigation_enabled(struct alt_instr *alt,
+						   __le32 *origptr,
+						   __le32 *updptr, int nr_inst)
+{
+	BUG_ON(nr_inst != 1);
+
+	if (test_bit(BHB_FW, &system_bhb_mitigations))
+		*updptr++ = cpu_to_le32(aarch64_insn_gen_nop());
+}
+
+/* Patched to correct the immediate */
+void noinstr spectre_bhb_patch_loop_iter(struct alt_instr *alt,
+				   __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+	u8 rd;
+	u32 insn;
+	u16 loop_count = spectre_bhb_loop_affected(SCOPE_SYSTEM);
+
+	BUG_ON(nr_inst != 1); /* MOV -> MOV */
+
+	if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY))
+		return;
+
+	insn = le32_to_cpu(*origptr);
+	rd = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RD, insn);
+	insn = aarch64_insn_gen_movewide(rd, loop_count, 0,
+					 AARCH64_INSN_VARIANT_64BIT,
+					 AARCH64_INSN_MOVEWIDE_ZERO);
+	*updptr++ = cpu_to_le32(insn);
+}
+
+/* Patched to mov WA3 when supported */
+void noinstr spectre_bhb_patch_wa3(struct alt_instr *alt,
+				   __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+	u8 rd;
+	u32 insn;
+
+	BUG_ON(nr_inst != 1); /* MOV -> MOV */
+
+	if (!IS_ENABLED(CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY) ||
+	    !test_bit(BHB_FW, &system_bhb_mitigations))
+		return;
+
+	insn = le32_to_cpu(*origptr);
+	rd = aarch64_insn_decode_register(AARCH64_INSN_REGTYPE_RD, insn);
+
+	insn = aarch64_insn_gen_logical_immediate(AARCH64_INSN_LOGIC_ORR,
+						  AARCH64_INSN_VARIANT_32BIT,
+						  AARCH64_INSN_REG_ZR, rd,
+						  ARM_SMCCC_ARCH_WORKAROUND_3);
+	if (WARN_ON_ONCE(insn == AARCH64_BREAK_FAULT))
+		return;
+
+	*updptr++ = cpu_to_le32(insn);
+}
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index b6b6801d96d5a..12aa493249559 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -62,6 +62,10 @@ el1_sync:				// Guest trapped into EL2
 	/* ARM_SMCCC_ARCH_WORKAROUND_2 handling */
 	eor	w1, w1, #(ARM_SMCCC_ARCH_WORKAROUND_1 ^ \
 			  ARM_SMCCC_ARCH_WORKAROUND_2)
+	cbz	w1, wa_epilogue
+
+	eor	w1, w1, #(ARM_SMCCC_ARCH_WORKAROUND_2 ^ \
+			  ARM_SMCCC_ARCH_WORKAROUND_3)
 	cbnz	w1, el1_trap
 
 wa_epilogue:
@@ -192,7 +196,10 @@ SYM_CODE_END(__kvm_hyp_vector)
 	sub	sp, sp, #(8 * 4)
 	stp	x2, x3, [sp, #(8 * 0)]
 	stp	x0, x1, [sp, #(8 * 2)]
+	alternative_cb spectre_bhb_patch_wa3
+	/* Patched to mov WA3 when supported */
 	mov	w0, #ARM_SMCCC_ARCH_WORKAROUND_1
+	alternative_cb_end
 	smc	#0
 	ldp	x2, x3, [sp, #(8 * 0)]
 	add	sp, sp, #(8 * 2)
@@ -205,6 +212,7 @@ SYM_CODE_END(__kvm_hyp_vector)
 	spectrev2_smccc_wa1_smc
 	.else
 	stp	x0, x1, [sp, #-16]!
+	mitigate_spectre_bhb_loop	x0
 	.endif
 	.if \indirect != 0
 	alternative_cb  kvm_patch_vector_branch
-- 
GitLab


From d65dd058214689b75eaeb054647493511755db97 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Fri, 10 Dec 2021 11:16:18 +0000
Subject: [PATCH 4572/4878] UPSTREAM: KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3
 to be discovered and migrated

commit a5905d6af492ee6a4a2205f0d550b3f931b03d03 upstream.

KVM allows the guest to discover whether the ARCH_WORKAROUND SMCCC are
implemented, and to preserve that state during migration through its
firmware register interface.

Add the necessary boiler plate for SMCCC_ARCH_WORKAROUND_3.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9e0964b54727930bbda4f089c91075447b046c91
---
 arch/arm64/include/uapi/asm/kvm.h |  5 +++++
 arch/arm64/kvm/hypercalls.c       | 12 ++++++++++++
 arch/arm64/kvm/psci.c             | 18 +++++++++++++++++-
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index fa2b4119e18ab..0c93ab4216471 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -281,6 +281,11 @@ struct kvm_arm_copy_mte_tags {
 #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED	3
 #define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED     	(1U << 4)
 
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3	KVM_REG_ARM_FW_REG(3)
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL		0
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL		1
+#define KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED	2
+
 /* SVE registers */
 #define KVM_REG_ARM64_SVE		(0x15 << KVM_REG_ARM_COPROC_SHIFT)
 
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index a8fd2b1869b88..e7c71396b7e06 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -125,6 +125,18 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 				break;
 			}
 			break;
+		case ARM_SMCCC_ARCH_WORKAROUND_3:
+			switch (arm64_get_spectre_bhb_state()) {
+			case SPECTRE_VULNERABLE:
+				break;
+			case SPECTRE_MITIGATED:
+				val[0] = SMCCC_RET_SUCCESS;
+				break;
+			case SPECTRE_UNAFFECTED:
+				val[0] = SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED;
+				break;
+			}
+			break;
 		case ARM_SMCCC_HV_PV_TIME_FEATURES:
 			val[0] = SMCCC_RET_SUCCESS;
 			break;
diff --git a/arch/arm64/kvm/psci.c b/arch/arm64/kvm/psci.c
index 09c1385efcea3..371ebbc6b529c 100644
--- a/arch/arm64/kvm/psci.c
+++ b/arch/arm64/kvm/psci.c
@@ -415,7 +415,7 @@ int kvm_psci_call(struct kvm_vcpu *vcpu)
 
 int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu)
 {
-	return 3;		/* PSCI version and two workaround registers */
+	return 4;		/* PSCI version and three workaround registers */
 }
 
 int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
@@ -429,6 +429,9 @@ int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
 	if (put_user(KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2, uindices++))
 		return -EFAULT;
 
+	if (put_user(KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3, uindices++))
+		return -EFAULT;
+
 	return 0;
 }
 
@@ -468,6 +471,17 @@ static int get_kernel_wa_level(u64 regid)
 		case SPECTRE_VULNERABLE:
 			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL;
 		}
+		break;
+	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3:
+		switch (arm64_get_spectre_bhb_state()) {
+		case SPECTRE_VULNERABLE:
+			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL;
+		case SPECTRE_MITIGATED:
+			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_AVAIL;
+		case SPECTRE_UNAFFECTED:
+			return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_REQUIRED;
+		}
+		return KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3_NOT_AVAIL;
 	}
 
 	return -EINVAL;
@@ -484,6 +498,7 @@ int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 		break;
 	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1:
 	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2:
+	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3:
 		val = get_kernel_wa_level(reg->id) & KVM_REG_FEATURE_LEVEL_MASK;
 		break;
 	default:
@@ -530,6 +545,7 @@ int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 	}
 
 	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1:
+	case KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3:
 		if (val & ~KVM_REG_FEATURE_LEVEL_MASK)
 			return -EINVAL;
 
-- 
GitLab


From cae54aa2645c769ba3263b1abd1e05cbd838f4a9 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Fri, 10 Dec 2021 14:32:56 +0000
Subject: [PATCH 4573/4878] UPSTREAM: arm64: Use the clearbhb instruction in
 mitigations

Future CPUs may implement a clearbhb instruction that is sufficient
to mitigate SpectreBHB. CPUs that implement this instruction, but
not CSV2.3 must be affected by Spectre-BHB.

Add support to use this instruction as the BHB mitigation on CPUs
that support it. The instruction is in the hint space, so it will
be treated by a NOP as older CPUs.

Bug: 215557547
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
(cherry picked from commit 228a26b912287934789023b4132ba76065d9491c)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie233d92acfaed7b44ac255472ddb06367660384d
---
 arch/arm64/include/asm/assembler.h  | 17 +++++++++++++++++
 arch/arm64/include/asm/cpufeature.h | 13 +++++++++++++
 arch/arm64/include/asm/insn.h       |  1 +
 arch/arm64/include/asm/sysreg.h     |  1 +
 arch/arm64/include/asm/vectors.h    |  7 +++++++
 arch/arm64/kernel/cpufeature.c      |  1 +
 arch/arm64/kernel/entry.S           |  8 ++++++++
 arch/arm64/kernel/image-vars.h      |  1 +
 arch/arm64/kernel/proton-pack.c     | 29 +++++++++++++++++++++++++++++
 arch/arm64/kvm/hyp/hyp-entry.S      |  1 +
 10 files changed, 79 insertions(+)

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index ca036f63366dc..c51ce0dd57d0a 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -107,6 +107,13 @@
 	hint	#20
 	.endm
 
+/*
+ * Clear Branch History instruction
+ */
+	.macro clearbhb
+	hint	#22
+	.endm
+
 /*
  * Speculation barrier
  */
@@ -851,6 +858,16 @@ alternative_cb	smccc_patch_fw_mitigation_conduit
 alternative_cb_end
 	ldp	x2, x3, [sp], #16
 	ldp	x0, x1, [sp], #16
+#endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
+	.endm
+
+	.macro mitigate_spectre_bhb_clear_insn
+#ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
+alternative_cb	spectre_bhb_patch_clearbhb
+	/* Patched to NOP when not supported */
+	clearbhb
+	isb
+alternative_cb_end
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 	.endm
 #endif	/* __ASM_ASSEMBLER_H */
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index c7fbddbe91582..a36174096572a 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -646,6 +646,19 @@ static inline bool supports_csv2p3(int scope)
 	return csv2_val == 3;
 }
 
+static inline bool supports_clearbhb(int scope)
+{
+	u64 isar2;
+
+	if (scope == SCOPE_LOCAL_CPU)
+		isar2 = read_sysreg_s(SYS_ID_AA64ISAR2_EL1);
+	else
+		isar2 = read_sanitised_ftr_reg(SYS_ID_AA64ISAR2_EL1);
+
+	return cpuid_feature_extract_unsigned_field(isar2,
+						    ID_AA64ISAR2_CLEARBHB_SHIFT);
+}
+
 const struct cpumask *system_32bit_el0_cpumask(void);
 DECLARE_STATIC_KEY_FALSE(arm64_mismatched_32bit_el0);
 
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index 4ebb9c054cccd..c0973345e6e1d 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -64,6 +64,7 @@ enum aarch64_insn_hint_cr_op {
 	AARCH64_INSN_HINT_PSB  = 0x11 << 5,
 	AARCH64_INSN_HINT_TSB  = 0x12 << 5,
 	AARCH64_INSN_HINT_CSDB = 0x14 << 5,
+	AARCH64_INSN_HINT_CLEARBHB = 0x16 << 5,
 
 	AARCH64_INSN_HINT_BTI   = 0x20 << 5,
 	AARCH64_INSN_HINT_BTIC  = 0x22 << 5,
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index d96d999950bd6..3567520ac7012 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -761,6 +761,7 @@
 #define ID_AA64ISAR1_GPI_IMP_DEF		0x1
 
 /* id_aa64isar2 */
+#define ID_AA64ISAR2_CLEARBHB_SHIFT	28
 #define ID_AA64ISAR2_RPRES_SHIFT	4
 #define ID_AA64ISAR2_WFXT_SHIFT		0
 
diff --git a/arch/arm64/include/asm/vectors.h b/arch/arm64/include/asm/vectors.h
index 1f65c37dc653b..f64613a96d530 100644
--- a/arch/arm64/include/asm/vectors.h
+++ b/arch/arm64/include/asm/vectors.h
@@ -32,6 +32,12 @@ enum arm64_bp_harden_el1_vectors {
 	 * canonical vectors.
 	 */
 	EL1_VECTOR_BHB_FW,
+
+	/*
+	 * Use the ClearBHB instruction, before branching to the canonical
+	 * vectors.
+	 */
+	EL1_VECTOR_BHB_CLEAR_INSN,
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 
 	/*
@@ -43,6 +49,7 @@ enum arm64_bp_harden_el1_vectors {
 #ifndef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
 #define EL1_VECTOR_BHB_LOOP		-1
 #define EL1_VECTOR_BHB_FW		-1
+#define EL1_VECTOR_BHB_CLEAR_INSN	-1
 #endif /* !CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 
 /* The vectors to use on return from EL0. e.g. to remap the kernel */
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 8718b955283a5..e2cbe76c86623 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -232,6 +232,7 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64isar2[] = {
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_HIGHER_SAFE, ID_AA64ISAR2_CLEARBHB_SHIFT, 4, 0),
 	ARM64_FTR_BITS(FTR_VISIBLE, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64ISAR2_RPRES_SHIFT, 4, 0),
 	ARM64_FTR_END,
 };
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 08a82f4c81500..9f19e6bb48df0 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -924,6 +924,7 @@ alternative_else_nop_endif
 #define BHB_MITIGATION_NONE	0
 #define BHB_MITIGATION_LOOP	1
 #define BHB_MITIGATION_FW	2
+#define BHB_MITIGATION_INSN	3
 
 	.macro tramp_ventry, vector_start, regsize, kpti, bhb
 	.align	7
@@ -940,6 +941,11 @@ alternative_else_nop_endif
 	__mitigate_spectre_bhb_loop	x30
 	.endif // \bhb == BHB_MITIGATION_LOOP
 
+	.if	\bhb == BHB_MITIGATION_INSN
+	clearbhb
+	isb
+	.endif // \bhb == BHB_MITIGATION_INSN
+
 	.if	\kpti == 1
 	/*
 	 * Defend against branch aliasing attacks by pushing a dummy
@@ -1016,6 +1022,7 @@ SYM_CODE_START_NOALIGN(tramp_vectors)
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
 	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_LOOP
 	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_FW
+	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_INSN
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 	generate_tramp_vector	kpti=1, bhb=BHB_MITIGATION_NONE
 SYM_CODE_END(tramp_vectors)
@@ -1078,6 +1085,7 @@ SYM_CODE_START(__bp_harden_el1_vectors)
 #ifdef CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY
 	generate_el1_vector	bhb=BHB_MITIGATION_LOOP
 	generate_el1_vector	bhb=BHB_MITIGATION_FW
+	generate_el1_vector	bhb=BHB_MITIGATION_INSN
 #endif /* CONFIG_MITIGATE_SPECTRE_BRANCH_HISTORY */
 SYM_CODE_END(__bp_harden_el1_vectors)
 	.popsection
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index c6f361fbf082a..2858ed8a42206 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -69,6 +69,7 @@ KVM_NVHE_ALIAS(kvm_compute_final_ctr_el0);
 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_iter);
 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_mitigation_enable);
 KVM_NVHE_ALIAS(spectre_bhb_patch_wa3);
+KVM_NVHE_ALIAS(spectre_bhb_patch_clearbhb);
 
 /* Global kernel state accessed by nVHE hyp code. */
 KVM_NVHE_ALIAS(kvm_vgic_global_state);
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index fbbcd1d2eb192..d3fbff00993de 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -805,6 +805,7 @@ int arch_prctl_spec_ctrl_get(struct task_struct *task, unsigned long which)
  * - Mitigated by a branchy loop a CPU specific number of times, and listed
  *   in our "loop mitigated list".
  * - Mitigated in software by the firmware Spectre v2 call.
+ * - Has the ClearBHB instruction to perform the mitigation.
  * - Has the 'Exception Clears Branch History Buffer' (ECBHB) feature, so no
  *   software mitigation in the vectors is needed.
  * - Has CSV2.3, so is unaffected.
@@ -820,6 +821,7 @@ enum bhb_mitigation_bits {
 	BHB_LOOP,
 	BHB_FW,
 	BHB_HW,
+	BHB_INSN,
 };
 static unsigned long system_bhb_mitigations;
 
@@ -937,6 +939,9 @@ bool is_spectre_bhb_affected(const struct arm64_cpu_capabilities *entry,
 	if (supports_csv2p3(scope))
 		return false;
 
+	if (supports_clearbhb(scope))
+		return true;
+
 	if (spectre_bhb_loop_affected(scope))
 		return true;
 
@@ -984,6 +989,17 @@ void spectre_bhb_enable_mitigation(const struct arm64_cpu_capabilities *entry)
 	} else if (supports_ecbhb(SCOPE_LOCAL_CPU)) {
 		state = SPECTRE_MITIGATED;
 		set_bit(BHB_HW, &system_bhb_mitigations);
+	} else if (supports_clearbhb(SCOPE_LOCAL_CPU)) {
+		/*
+		 * Ensure KVM uses the indirect vector which will have ClearBHB
+		 * added.
+		 */
+		if (!data->slot)
+			data->slot = HYP_VECTOR_INDIRECT;
+
+		this_cpu_set_vectors(EL1_VECTOR_BHB_CLEAR_INSN);
+		state = SPECTRE_MITIGATED;
+		set_bit(BHB_INSN, &system_bhb_mitigations);
 	} else if (spectre_bhb_loop_affected(SCOPE_LOCAL_CPU)) {
 		/*
 		 * Ensure KVM uses the indirect vector which will have the
@@ -1096,3 +1112,16 @@ void noinstr spectre_bhb_patch_wa3(struct alt_instr *alt,
 
 	*updptr++ = cpu_to_le32(insn);
 }
+
+/* Patched to NOP when not supported */
+void __init spectre_bhb_patch_clearbhb(struct alt_instr *alt,
+				   __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+	BUG_ON(nr_inst != 2);
+
+	if (test_bit(BHB_INSN, &system_bhb_mitigations))
+		return;
+
+	*updptr++ = cpu_to_le32(aarch64_insn_gen_nop());
+	*updptr++ = cpu_to_le32(aarch64_insn_gen_nop());
+}
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index 12aa493249559..7839d075729b1 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -213,6 +213,7 @@ SYM_CODE_END(__kvm_hyp_vector)
 	.else
 	stp	x0, x1, [sp, #-16]!
 	mitigate_spectre_bhb_loop	x0
+	mitigate_spectre_bhb_clear_insn
 	.endif
 	.if \indirect != 0
 	alternative_cb  kvm_patch_vector_branch
-- 
GitLab


From cf6a46ae183aaba1b08f183e3448f8756f8d68e1 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Thu, 3 Mar 2022 16:53:56 +0000
Subject: [PATCH 4574/4878] UPSTREAM: arm64: proton-pack: Include unprivileged
 eBPF status in Spectre v2 mitigation reporting

commit 58c9a5060cb7cd529d49c93954cdafe81c1d642a upstream.

The mitigations for Spectre-BHB are only applied when an exception is
taken from user-space. The mitigation status is reported via the spectre_v2
sysfs vulnerabilities file.

When unprivileged eBPF is enabled the mitigation in the exception vectors
can be avoided by an eBPF program.

When unprivileged eBPF is enabled, print a warning and report vulnerable
via the sysfs vulnerabilities file.

Bug: 215557547
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib4a7b967d820684dbb18eafacdbaa22794469040
---
 arch/arm64/kernel/proton-pack.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index d3fbff00993de..6d45c63c64548 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/arm-smccc.h>
+#include <linux/bpf.h>
 #include <linux/cpu.h>
 #include <linux/device.h>
 #include <linux/nospec.h>
@@ -111,6 +112,15 @@ static const char *get_bhb_affected_string(enum mitigation_state bhb_state)
 	}
 }
 
+static bool _unprivileged_ebpf_enabled(void)
+{
+#ifdef CONFIG_BPF_SYSCALL
+	return !sysctl_unprivileged_bpf_disabled;
+#else
+	return false;
+#endif
+}
+
 ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
@@ -130,6 +140,9 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr,
 		v2_str = "CSV2";
 		fallthrough;
 	case SPECTRE_MITIGATED:
+		if (bhb_state == SPECTRE_MITIGATED && _unprivileged_ebpf_enabled())
+			return sprintf(buf, "Vulnerable: Unprivileged eBPF enabled\n");
+
 		return sprintf(buf, "Mitigation: %s%s\n", v2_str, bhb_str);
 	case SPECTRE_VULNERABLE:
 		fallthrough;
@@ -1125,3 +1138,16 @@ void __init spectre_bhb_patch_clearbhb(struct alt_instr *alt,
 	*updptr++ = cpu_to_le32(aarch64_insn_gen_nop());
 	*updptr++ = cpu_to_le32(aarch64_insn_gen_nop());
 }
+
+#ifdef CONFIG_BPF_SYSCALL
+#define EBPF_WARN "Unprivileged eBPF is enabled, data leaks possible via Spectre v2 BHB attacks!\n"
+void unpriv_ebpf_notify(int new_state)
+{
+	if (spectre_v2_state == SPECTRE_VULNERABLE ||
+	    spectre_bhb_state != SPECTRE_MITIGATED)
+		return;
+
+	if (!new_state)
+		pr_err("WARNING: %s", EBPF_WARN);
+}
+#endif
-- 
GitLab


From 9214367dd9abfb5ba6e3b0ef113f1212f2606f78 Mon Sep 17 00:00:00 2001
From: Fengnan Chang <changfengnan@vivo.com>
Date: Fri, 18 Mar 2022 09:23:04 +0800
Subject: [PATCH 4575/4878] f2fs: fix compressed file start atomic write may
 cause data corruption

When compressed file has blocks, f2fs_ioc_start_atomic_write will succeed,
but compressed flag will be remained in inode. If write partial compreseed
cluster and commit atomic write will cause data corruption.

This is the reproduction process:
Step 1:
create a compressed file ,write 64K data , call fsync(), then the blocks
are write as compressed cluster.
Step2:
iotcl(F2FS_IOC_START_ATOMIC_WRITE)  --- this should be fail, but not.
write page 0 and page 3.
iotcl(F2FS_IOC_COMMIT_ATOMIC_WRITE)  -- page 0 and 3 write as normal file,
Step3:
drop cache.
read page 0-4   -- Since page 0 has a valid block address, read as
non-compressed cluster, page 1 and 2 will be filled with compressed data
or zero.

The root cause is, after commit 7eab7a696827 ("f2fs: compress: remove
unneeded read when rewrite whole cluster"), in step 2, f2fs_write_begin()
only set target page dirty, and in f2fs_commit_inmem_pages(), we will write
partial raw pages into compressed cluster, result in corrupting compressed
cluster layout.

Fixes: 4c8ff7095bef ("f2fs: support data compression")
Fixes: 7eab7a696827 ("f2fs: compress: remove unneeded read when rewrite whole cluster")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fengnan Chang <changfengnan@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/data.c | 2 +-
 fs/f2fs/file.c | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 4ec21b035d4b1..2967c4ea3267a 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3386,7 +3386,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
 
 		*fsdata = NULL;
 
-		if (len == PAGE_SIZE)
+		if (len == PAGE_SIZE && !(f2fs_is_atomic_file(inode)))
 			goto repeat;
 
 		ret = f2fs_prepare_compress_overwrite(inode, pagep,
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c572f8d894338..02ac50bd93146 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2063,7 +2063,10 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 
 	inode_lock(inode);
 
-	f2fs_disable_compressed_file(inode);
+	if (!f2fs_disable_compressed_file(inode)) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	if (f2fs_is_atomic_file(inode)) {
 		if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
-- 
GitLab


From 2fce32030b73263ffeeba95b1f1101c20541a5c8 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Fri, 18 Mar 2022 17:02:30 +0800
Subject: [PATCH 4576/4878] f2fs: use aggressive GC policy during
 f2fs_disable_checkpoint()

Let's enable GC_URGENT_HIGH mode during f2fs_disable_checkpoint(),
so that we can use SSR allocator for GCed data/node persistence,
it can improve the performance due to it avoiding migration of
data/node locates in selected target segment of SSR allocator.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/super.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 20ebd5bc0a05c..43bccd770a8a3 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2091,6 +2091,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 {
 	unsigned int s_flags = sbi->sb->s_flags;
 	struct cp_control cpc;
+	unsigned int gc_mode;
 	int err = 0;
 	int ret;
 	block_t unusable;
@@ -2103,6 +2104,9 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 
 	f2fs_update_time(sbi, DISABLE_TIME);
 
+	gc_mode = sbi->gc_mode;
+	sbi->gc_mode = GC_URGENT_HIGH;
+
 	while (!f2fs_time_over(sbi, DISABLE_TIME)) {
 		f2fs_down_write(&sbi->gc_lock);
 		err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
@@ -2140,6 +2144,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
 out_unlock:
 	f2fs_up_write(&sbi->gc_lock);
 restore_flag:
+	sbi->gc_mode = gc_mode;
 	sbi->sb->s_flags = s_flags;	/* Restore SB_RDONLY status */
 	return err;
 }
-- 
GitLab


From 78ad5f1ff9a6e2c2654ee409f4e2e2cb04115853 Mon Sep 17 00:00:00 2001
From: "andrew.yang" <andrew.yang@mediatek.com>
Date: Tue, 15 Mar 2022 16:58:34 +1100
Subject: [PATCH 4577/4878] FROMGIT: mm/migrate: fix race between lock page and
 clear PG_Isolated

When memory is tight, system may start to compact memory for large
continuous memory demands.  If one process tries to lock a memory page
that is being locked and isolated for compaction, it may wait a long time
or even forever.  This is because compaction will perform non-atomic
PG_Isolated clear while holding page lock, this may overwrite PG_waiters
set by the process that can't obtain the page lock and add itself to the
waiting queue to wait for the lock to be unlocked.

CPU1                            CPU2
lock_page(page); (successful)
                                lock_page(); (failed)
__ClearPageIsolated(page);      SetPageWaiters(page) (may be overwritten)
unlock_page(page);

The solution is to not perform non-atomic operation on page flags while
holding page lock.

Link: https://lkml.kernel.org/r/20220315030515.20263-1-andrew.yang@mediatek.com
Signed-off-by: andrew.yang <andrew.yang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: "Vlastimil Babka" <vbabka@suse.cz>
Cc: David Howells <dhowells@redhat.com>
Cc: "William Kucharski" <william.kucharski@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit 48911e41ddee4fe113bf1e4303dda1a413b169c9
 https://github.com/hnaz/linux-mm.git)
Bug: 225086204
Change-Id: Ia72bd22fdf2fc0476fda7abb769e6c879f427b2b
---
 include/linux/page-flags.h |  2 +-
 mm/migrate.c               | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index c88dc07743d4e..1c5027fdc2a9e 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -758,7 +758,7 @@ PAGE_TYPE_OPS(Guard, guard)
 
 extern bool is_free_buddy_page(struct page *page);
 
-__PAGEFLAG(Isolated, isolated, PF_ANY);
+PAGEFLAG(Isolated, isolated, PF_ANY);
 
 /*
  * If network-based swap is enabled, sl*b must keep track of whether pages
diff --git a/mm/migrate.c b/mm/migrate.c
index 7137465caf404..26f8595de076c 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -105,7 +105,7 @@ int isolate_movable_page(struct page *page, isolate_mode_t mode)
 
 	/* Driver shouldn't use PG_isolated bit of page->flags */
 	WARN_ON_ONCE(PageIsolated(page));
-	__SetPageIsolated(page);
+	SetPageIsolated(page);
 	unlock_page(page);
 
 	return 0;
@@ -129,7 +129,7 @@ void putback_movable_page(struct page *page)
 
 	mapping = page_mapping(page);
 	mapping->a_ops->putback_page(page);
-	__ClearPageIsolated(page);
+	ClearPageIsolated(page);
 }
 
 /*
@@ -162,7 +162,7 @@ void putback_movable_pages(struct list_head *l)
 			if (PageMovable(page))
 				putback_movable_page(page);
 			else
-				__ClearPageIsolated(page);
+				ClearPageIsolated(page);
 			unlock_page(page);
 			put_page(page);
 		} else {
@@ -952,7 +952,7 @@ static int move_to_new_page(struct page *newpage, struct page *page,
 		VM_BUG_ON_PAGE(!PageIsolated(page), page);
 		if (!PageMovable(page)) {
 			rc = MIGRATEPAGE_SUCCESS;
-			__ClearPageIsolated(page);
+			ClearPageIsolated(page);
 			goto out;
 		}
 
@@ -974,7 +974,7 @@ static int move_to_new_page(struct page *newpage, struct page *page,
 			 * We clear PG_movable under page_lock so any compactor
 			 * cannot try to migrate this page.
 			 */
-			__ClearPageIsolated(page);
+			ClearPageIsolated(page);
 		}
 
 		/*
@@ -1160,7 +1160,7 @@ static int unmap_and_move(new_page_t get_new_page,
 		if (unlikely(__PageMovable(page))) {
 			lock_page(page);
 			if (!PageMovable(page))
-				__ClearPageIsolated(page);
+				ClearPageIsolated(page);
 			unlock_page(page);
 		}
 		goto out;
@@ -1215,7 +1215,7 @@ out:
 			if (PageMovable(page))
 				putback_movable_page(page);
 			else
-				__ClearPageIsolated(page);
+				ClearPageIsolated(page);
 			unlock_page(page);
 			put_page(page);
 		}
-- 
GitLab


From bdf0316982f00010d6e56f1379a51cd0568d51cd Mon Sep 17 00:00:00 2001
From: Kai Lueke <kailueke@linux.microsoft.com>
Date: Thu, 3 Mar 2022 15:55:10 +0100
Subject: [PATCH 4578/4878] Revert "xfrm: state and policy should fail if
 XFRMA_IF_ID 0"

commit a3d9001b4e287fc043e5539d03d71a32ab114bcb upstream.

This reverts commit 68ac0f3810e76a853b5f7b90601a05c3048b8b54 because ID
0 was meant to be used for configuring the policy/state without
matching for a specific interface (e.g., Cilium is affected, see
https://github.com/cilium/cilium/pull/18789 and
https://github.com/cilium/cilium/pull/19019).

Signed-off-by: Kai Lueke <kailueke@linux.microsoft.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/xfrm/xfrm_user.c | 21 +++------------------
 1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index d0fdfbf4c5f72..518462059a9ac 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -629,13 +629,8 @@ static struct xfrm_state *xfrm_state_construct(struct net *net,
 
 	xfrm_smark_init(attrs, &x->props.smark);
 
-	if (attrs[XFRMA_IF_ID]) {
+	if (attrs[XFRMA_IF_ID])
 		x->if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
-		if (!x->if_id) {
-			err = -EINVAL;
-			goto error;
-		}
-	}
 
 	err = __xfrm_init_state(x, false, attrs[XFRMA_OFFLOAD_DEV]);
 	if (err)
@@ -1371,13 +1366,8 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	mark = xfrm_mark_get(attrs, &m);
 
-	if (attrs[XFRMA_IF_ID]) {
+	if (attrs[XFRMA_IF_ID])
 		if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
-		if (!if_id) {
-			err = -EINVAL;
-			goto out_noput;
-		}
-	}
 
 	if (p->info.seq) {
 		x = xfrm_find_acq_byseq(net, mark, p->info.seq);
@@ -1690,13 +1680,8 @@ static struct xfrm_policy *xfrm_policy_construct(struct net *net, struct xfrm_us
 
 	xfrm_mark_get(attrs, &xp->mark);
 
-	if (attrs[XFRMA_IF_ID]) {
+	if (attrs[XFRMA_IF_ID])
 		xp->if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
-		if (!xp->if_id) {
-			err = -EINVAL;
-			goto error;
-		}
-	}
 
 	return xp;
  error:
-- 
GitLab


From 6056abc99b58fe55033577f3ad6e28d001a27641 Mon Sep 17 00:00:00 2001
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 20 Oct 2021 07:42:42 -0400
Subject: [PATCH 4579/4878] sctp: fix the processing for INIT chunk

commit eae5783908042a762c24e1bd11876edb91d314b1 upstream.

This patch fixes the problems below:

1. In non-shutdown_ack_sent states: in sctp_sf_do_5_1B_init() and
   sctp_sf_do_5_2_2_dupinit():

  chunk length check should be done before any checks that may cause
  to send abort, as making packet for abort will access the init_tag
  from init_hdr in sctp_ootb_pkt_new().

2. In shutdown_ack_sent state: in sctp_sf_do_9_2_reshutack():

  The same checks as does in sctp_sf_do_5_2_2_dupinit() is needed
  for sctp_sf_do_9_2_reshutack().

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/sctp/sm_statefuns.c | 71 ++++++++++++++++++++++++++---------------
 1 file changed, 46 insertions(+), 25 deletions(-)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index 096e6be1d8fc8..ee0b2b03657ca 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -149,6 +149,12 @@ static enum sctp_disposition __sctp_sf_do_9_1_abort(
 					void *arg,
 					struct sctp_cmd_seq *commands);
 
+static enum sctp_disposition
+__sctp_sf_do_9_2_reshutack(struct net *net, const struct sctp_endpoint *ep,
+			   const struct sctp_association *asoc,
+			   const union sctp_subtype type, void *arg,
+			   struct sctp_cmd_seq *commands);
+
 /* Small helper function that checks if the chunk length
  * is of the appropriate length.  The 'required_length' argument
  * is set to be the size of a specific chunk we are testing.
@@ -330,6 +336,14 @@ enum sctp_disposition sctp_sf_do_5_1B_init(struct net *net,
 	if (!chunk->singleton)
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
+	/* Make sure that the INIT chunk has a valid length.
+	 * Normally, this would cause an ABORT with a Protocol Violation
+	 * error, but since we don't have an association, we'll
+	 * just discard the packet.
+	 */
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* If the packet is an OOTB packet which is temporarily on the
 	 * control endpoint, respond with an ABORT.
 	 */
@@ -344,14 +358,6 @@ enum sctp_disposition sctp_sf_do_5_1B_init(struct net *net,
 	if (chunk->sctp_hdr->vtag != 0)
 		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 
-	/* Make sure that the INIT chunk has a valid length.
-	 * Normally, this would cause an ABORT with a Protocol Violation
-	 * error, but since we don't have an association, we'll
-	 * just discard the packet.
-	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
-		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
-
 	/* If the INIT is coming toward a closing socket, we'll send back
 	 * and ABORT.  Essentially, this catches the race of INIT being
 	 * backloged to the socket at the same time as the user isses close().
@@ -1484,19 +1490,16 @@ static enum sctp_disposition sctp_sf_do_unexpected_init(
 	if (!chunk->singleton)
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
 
+	/* Make sure that the INIT chunk has a valid length. */
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
 	/* 3.1 A packet containing an INIT chunk MUST have a zero Verification
 	 * Tag.
 	 */
 	if (chunk->sctp_hdr->vtag != 0)
 		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
 
-	/* Make sure that the INIT chunk has a valid length.
-	 * In this case, we generate a protocol violation since we have
-	 * an association established.
-	 */
-	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
-		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
-						  commands);
 	/* Grab the INIT header.  */
 	chunk->subh.init_hdr = (struct sctp_inithdr *)chunk->skb->data;
 
@@ -1814,9 +1817,9 @@ static enum sctp_disposition sctp_sf_do_dupcook_a(
 	 * its peer.
 	*/
 	if (sctp_state(asoc, SHUTDOWN_ACK_SENT)) {
-		disposition = sctp_sf_do_9_2_reshutack(net, ep, asoc,
-				SCTP_ST_CHUNK(chunk->chunk_hdr->type),
-				chunk, commands);
+		disposition = __sctp_sf_do_9_2_reshutack(net, ep, asoc,
+							 SCTP_ST_CHUNK(chunk->chunk_hdr->type),
+							 chunk, commands);
 		if (SCTP_DISPOSITION_NOMEM == disposition)
 			goto nomem;
 
@@ -2915,13 +2918,11 @@ enum sctp_disposition sctp_sf_do_9_2_shut_ctsn(
  * that belong to this association, it should discard the INIT chunk and
  * retransmit the SHUTDOWN ACK chunk.
  */
-enum sctp_disposition sctp_sf_do_9_2_reshutack(
-					struct net *net,
-					const struct sctp_endpoint *ep,
-					const struct sctp_association *asoc,
-					const union sctp_subtype type,
-					void *arg,
-					struct sctp_cmd_seq *commands)
+static enum sctp_disposition
+__sctp_sf_do_9_2_reshutack(struct net *net, const struct sctp_endpoint *ep,
+			   const struct sctp_association *asoc,
+			   const union sctp_subtype type, void *arg,
+			   struct sctp_cmd_seq *commands)
 {
 	struct sctp_chunk *chunk = arg;
 	struct sctp_chunk *reply;
@@ -2955,6 +2956,26 @@ nomem:
 	return SCTP_DISPOSITION_NOMEM;
 }
 
+enum sctp_disposition
+sctp_sf_do_9_2_reshutack(struct net *net, const struct sctp_endpoint *ep,
+			 const struct sctp_association *asoc,
+			 const union sctp_subtype type, void *arg,
+			 struct sctp_cmd_seq *commands)
+{
+	struct sctp_chunk *chunk = arg;
+
+	if (!chunk->singleton)
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
+	if (!sctp_chunk_length_valid(chunk, sizeof(struct sctp_init_chunk)))
+		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
+
+	if (chunk->sctp_hdr->vtag != 0)
+		return sctp_sf_tabort_8_4_8(net, ep, asoc, type, arg, commands);
+
+	return __sctp_sf_do_9_2_reshutack(net, ep, asoc, type, arg, commands);
+}
+
 /*
  * sctp_sf_do_ecn_cwr
  *
-- 
GitLab


From d8889a445b538dbcc25d9a8c118d18228b5bbab5 Mon Sep 17 00:00:00 2001
From: Yan Yan <evitayan@google.com>
Date: Tue, 18 Jan 2022 16:00:13 -0800
Subject: [PATCH 4580/4878] xfrm: Check if_id in xfrm_migrate

[ Upstream commit c1aca3080e382886e2e58e809787441984a2f89b ]

This patch enables distinguishing SAs and SPs based on if_id during
the xfrm_migrate flow. This ensures support for xfrm interfaces
throughout the SA/SP lifecycle.

When there are multiple existing SPs with the same direction,
the same xfrm_selector and different endpoint addresses,
xfrm_migrate might fail with ENODATA.

Specifically, the code path for performing xfrm_migrate is:
  Stage 1: find policy to migrate with
    xfrm_migrate_policy_find(sel, dir, type, net)
  Stage 2: find and update state(s) with
    xfrm_migrate_state_find(mp, net)
  Stage 3: update endpoint address(es) of template(s) with
    xfrm_policy_migrate(pol, m, num_migrate)

Currently "Stage 1" always returns the first xfrm_policy that
matches, and "Stage 3" looks for the xfrm_tmpl that matches the
old endpoint address. Thus if there are multiple xfrm_policy
with same selector, direction, type and net, "Stage 1" might
rertun a wrong xfrm_policy and "Stage 3" will fail with ENODATA
because it cannot find a xfrm_tmpl with the matching endpoint
address.

The fix is to allow userspace to pass an if_id and add if_id
to the matching rule in Stage 1 and Stage 2 since if_id is a
unique ID for xfrm_policy and xfrm_state. For compatibility,
if_id will only be checked if the attribute is set.

Tested with additions to Android's kernel unit test suite:
https://android-review.googlesource.com/c/kernel/tests/+/1668886

Signed-off-by: Yan Yan <evitayan@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/xfrm.h     |  5 +++--
 net/key/af_key.c       |  2 +-
 net/xfrm/xfrm_policy.c | 14 ++++++++------
 net/xfrm/xfrm_state.c  |  7 ++++++-
 net/xfrm/xfrm_user.c   |  6 +++++-
 5 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 4a2843441caf1..0049a74596490 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1668,14 +1668,15 @@ int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	       const struct xfrm_migrate *m, int num_bundles,
 	       const struct xfrm_kmaddress *k,
 	       const struct xfrm_encap_tmpl *encap);
-struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net);
+struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net,
+						u32 if_id);
 struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
 				      struct xfrm_migrate *m,
 				      struct xfrm_encap_tmpl *encap);
 int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		 struct xfrm_migrate *m, int num_bundles,
 		 struct xfrm_kmaddress *k, struct net *net,
-		 struct xfrm_encap_tmpl *encap);
+		 struct xfrm_encap_tmpl *encap, u32 if_id);
 #endif
 
 int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index ef9b4ac03e7b7..d1364b858fdf0 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2627,7 +2627,7 @@ static int pfkey_migrate(struct sock *sk, struct sk_buff *skb,
 	}
 
 	return xfrm_migrate(&sel, dir, XFRM_POLICY_TYPE_MAIN, m, i,
-			    kma ? &k : NULL, net, NULL);
+			    kma ? &k : NULL, net, NULL, 0);
 
  out:
 	return err;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index c4a195cb36817..3d0ffd9270041 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -4287,7 +4287,7 @@ static bool xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp,
 }
 
 static struct xfrm_policy *xfrm_migrate_policy_find(const struct xfrm_selector *sel,
-						    u8 dir, u8 type, struct net *net)
+						    u8 dir, u8 type, struct net *net, u32 if_id)
 {
 	struct xfrm_policy *pol, *ret = NULL;
 	struct hlist_head *chain;
@@ -4296,7 +4296,8 @@ static struct xfrm_policy *xfrm_migrate_policy_find(const struct xfrm_selector *
 	spin_lock_bh(&net->xfrm.xfrm_policy_lock);
 	chain = policy_hash_direct(net, &sel->daddr, &sel->saddr, sel->family, dir);
 	hlist_for_each_entry(pol, chain, bydst) {
-		if (xfrm_migrate_selector_match(sel, &pol->selector) &&
+		if ((if_id == 0 || pol->if_id == if_id) &&
+		    xfrm_migrate_selector_match(sel, &pol->selector) &&
 		    pol->type == type) {
 			ret = pol;
 			priority = ret->priority;
@@ -4308,7 +4309,8 @@ static struct xfrm_policy *xfrm_migrate_policy_find(const struct xfrm_selector *
 		if ((pol->priority >= priority) && ret)
 			break;
 
-		if (xfrm_migrate_selector_match(sel, &pol->selector) &&
+		if ((if_id == 0 || pol->if_id == if_id) &&
+		    xfrm_migrate_selector_match(sel, &pol->selector) &&
 		    pol->type == type) {
 			ret = pol;
 			break;
@@ -4424,7 +4426,7 @@ static int xfrm_migrate_check(const struct xfrm_migrate *m, int num_migrate)
 int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		 struct xfrm_migrate *m, int num_migrate,
 		 struct xfrm_kmaddress *k, struct net *net,
-		 struct xfrm_encap_tmpl *encap)
+		 struct xfrm_encap_tmpl *encap, u32 if_id)
 {
 	int i, err, nx_cur = 0, nx_new = 0;
 	struct xfrm_policy *pol = NULL;
@@ -4443,14 +4445,14 @@ int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	}
 
 	/* Stage 1 - find policy */
-	if ((pol = xfrm_migrate_policy_find(sel, dir, type, net)) == NULL) {
+	if ((pol = xfrm_migrate_policy_find(sel, dir, type, net, if_id)) == NULL) {
 		err = -ENOENT;
 		goto out;
 	}
 
 	/* Stage 2 - find and update state(s) */
 	for (i = 0, mp = m; i < num_migrate; i++, mp++) {
-		if ((x = xfrm_migrate_state_find(mp, net))) {
+		if ((x = xfrm_migrate_state_find(mp, net, if_id))) {
 			x_cur[nx_cur] = x;
 			nx_cur++;
 			xc = xfrm_state_migrate(x, mp, encap);
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index f5b846a2edcd7..37fe22b2e843b 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1569,7 +1569,8 @@ out:
 	return NULL;
 }
 
-struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net)
+struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net,
+						u32 if_id)
 {
 	unsigned int h;
 	struct xfrm_state *x = NULL;
@@ -1585,6 +1586,8 @@ struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *n
 				continue;
 			if (m->reqid && x->props.reqid != m->reqid)
 				continue;
+			if (if_id != 0 && x->if_id != if_id)
+				continue;
 			if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr,
 					     m->old_family) ||
 			    !xfrm_addr_equal(&x->props.saddr, &m->old_saddr,
@@ -1600,6 +1603,8 @@ struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *n
 			if (x->props.mode != m->mode ||
 			    x->id.proto != m->proto)
 				continue;
+			if (if_id != 0 && x->if_id != if_id)
+				continue;
 			if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr,
 					     m->old_family) ||
 			    !xfrm_addr_equal(&x->props.saddr, &m->old_saddr,
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 518462059a9ac..1ece01cd67a42 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2436,6 +2436,7 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
 	int n = 0;
 	struct net *net = sock_net(skb->sk);
 	struct xfrm_encap_tmpl  *encap = NULL;
+	u32 if_id = 0;
 
 	if (attrs[XFRMA_MIGRATE] == NULL)
 		return -EINVAL;
@@ -2460,7 +2461,10 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh,
 			return 0;
 	}
 
-	err = xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net, encap);
+	if (attrs[XFRMA_IF_ID])
+		if_id = nla_get_u32(attrs[XFRMA_IF_ID]);
+
+	err = xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net, encap, if_id);
 
 	kfree(encap);
 
-- 
GitLab


From ca142038a54f44ffd407ae2f6c65958f5e382ec6 Mon Sep 17 00:00:00 2001
From: Yan Yan <evitayan@google.com>
Date: Tue, 18 Jan 2022 16:00:14 -0800
Subject: [PATCH 4581/4878] xfrm: Fix xfrm migrate issues when address family
 changes

[ Upstream commit e03c3bba351f99ad932e8f06baa9da1afc418e02 ]

xfrm_migrate cannot handle address family change of an xfrm_state.
The symptons are the xfrm_state will be migrated to a wrong address,
and sending as well as receiving packets wil be broken.

This commit fixes it by breaking the original xfrm_state_clone
method into two steps so as to update the props.family before
running xfrm_init_state. As the result, xfrm_state's inner mode,
outer mode, type and IP header length in xfrm_state_migrate can
be updated with the new address family.

Tested with additions to Android's kernel unit test suite:
https://android-review.googlesource.com/c/kernel/tests/+/1885354

Signed-off-by: Yan Yan <evitayan@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_state.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 37fe22b2e843b..1befc6db723b0 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -1542,9 +1542,6 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig,
 	memcpy(&x->mark, &orig->mark, sizeof(x->mark));
 	memcpy(&x->props.smark, &orig->props.smark, sizeof(x->props.smark));
 
-	if (xfrm_init_state(x) < 0)
-		goto error;
-
 	x->props.flags = orig->props.flags;
 	x->props.extra_flags = orig->props.extra_flags;
 
@@ -1631,6 +1628,11 @@ struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
 	if (!xc)
 		return NULL;
 
+	xc->props.family = m->new_family;
+
+	if (xfrm_init_state(xc) < 0)
+		goto error;
+
 	memcpy(&xc->id.daddr, &m->new_daddr, sizeof(xc->id.daddr));
 	memcpy(&xc->props.saddr, &m->new_saddr, sizeof(xc->props.saddr));
 
-- 
GitLab


From f7f062919f4101505ff7ce2efccc9dcec5c334cd Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
Date: Wed, 19 Jan 2022 14:49:48 +0100
Subject: [PATCH 4582/4878] arm64: dts: rockchip: fix rk3399-puma eMMC HS400
 signal integrity

[ Upstream commit 62966cbdda8a92f82d966a45aa671e788b2006f7 ]

There are signal integrity issues running the eMMC at 200MHz on Puma
RK3399-Q7.

Similar to the work-around found for RK3399 Gru boards, lowering the
frequency to 100MHz made the eMMC much more stable, so let's lower the
frequency to 100MHz.

It might be possible to run at 150MHz as on RK3399 Gru boards but only
100MHz was extensively tested.

Cc: Quentin Schulz <foss+kernel@0leil.net>
Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20220119134948.1444965-1-quentin.schulz@theobroma-systems.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 4660416c8f382..544110aaffc56 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -472,6 +472,12 @@
 };
 
 &sdhci {
+	/*
+	 * Signal integrity isn't great at 200MHz but 100MHz has proven stable
+	 * enough.
+	 */
+	max-frequency = <100000000>;
+
 	bus-width = <8>;
 	mmc-hs400-1_8v;
 	mmc-hs400-enhanced-strobe;
-- 
GitLab


From c5c8c649fee0833c69c0f768cc3e9531c7701b3b Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Wed, 26 Jan 2022 15:55:40 +0100
Subject: [PATCH 4583/4878] arm64: dts: rockchip: reorder rk3399 hdmi clocks

[ Upstream commit 2e8a8b5955a000cc655f7e368670518cbb77fe58 ]

The binding specifies the clock order to "cec", "grf", "vpll". Reorder
the clocks accordingly.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20220126145549.617165-19-s.hauer@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 4b6065dbba55e..52ba4d07e7712 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1770,10 +1770,10 @@
 		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH 0>;
 		clocks = <&cru PCLK_HDMI_CTRL>,
 			 <&cru SCLK_HDMI_SFR>,
-			 <&cru PLL_VPLL>,
+			 <&cru SCLK_HDMI_CEC>,
 			 <&cru PCLK_VIO_GRF>,
-			 <&cru SCLK_HDMI_CEC>;
-		clock-names = "iahb", "isfr", "vpll", "grf", "cec";
+			 <&cru PLL_VPLL>;
+		clock-names = "iahb", "isfr", "cec", "grf", "vpll";
 		power-domains = <&power RK3399_PD_HDCP>;
 		reg-io-width = <4>;
 		rockchip,grf = <&grf>;
-- 
GitLab


From 6493c6aa8b4467c587444aa4b12805f6cc7307c9 Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@kernel.org>
Date: Thu, 6 Jan 2022 17:53:31 -0600
Subject: [PATCH 4584/4878] arm64: dts: agilex: use the compatible
 "intel,socfpga-agilex-hsotg"

[ Upstream commit 268a491aebc25e6dc7c618903b09ac3a2e8af530 ]

The DWC2 USB controller on the Agilex platform does not support clock
gating, so use the chip specific "intel,socfpga-agilex-hsotg"
compatible.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/intel/socfpga_agilex.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
index 07c099b4ed5b5..1e0c9415bfcd0 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
@@ -476,7 +476,7 @@
 		};
 
 		usb0: usb@ffb00000 {
-			compatible = "snps,dwc2";
+			compatible = "intel,socfpga-agilex-hsotg", "snps,dwc2";
 			reg = <0xffb00000 0x40000>;
 			interrupts = <0 93 4>;
 			phys = <&usbphy0>;
@@ -489,7 +489,7 @@
 		};
 
 		usb1: usb@ffb40000 {
-			compatible = "snps,dwc2";
+			compatible = "intel,socfpga-agilex-hsotg", "snps,dwc2";
 			reg = <0xffb40000 0x40000>;
 			interrupts = <0 94 4>;
 			phys = <&usbphy0>;
-- 
GitLab


From 6f0a94931c479632f1875aec0b53dd33d90dfe11 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 10 Feb 2022 15:23:53 +0100
Subject: [PATCH 4585/4878] ARM: dts: rockchip: reorder rk322x hmdi clocks

[ Upstream commit be4e65bdffab5f588044325117df77dad7e9c45a ]

The binding specifies the clock order to "iahb", "isfr", "cec". Reorder
the clocks accordingly.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20220210142353.3420859-1-s.hauer@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/rk322x.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/rk322x.dtsi b/arch/arm/boot/dts/rk322x.dtsi
index 7de8b006ca13a..2f17bf35d7a65 100644
--- a/arch/arm/boot/dts/rk322x.dtsi
+++ b/arch/arm/boot/dts/rk322x.dtsi
@@ -640,8 +640,8 @@
 		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
 		assigned-clocks = <&cru SCLK_HDMI_PHY>;
 		assigned-clock-parents = <&hdmi_phy>;
-		clocks = <&cru SCLK_HDMI_HDCP>, <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_CEC>;
-		clock-names = "isfr", "iahb", "cec";
+		clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>, <&cru SCLK_HDMI_CEC>;
+		clock-names = "iahb", "isfr", "cec";
 		pinctrl-names = "default";
 		pinctrl-0 = <&hdmii2c_xfer &hdmi_hpd &hdmi_cec>;
 		resets = <&cru SRST_HDMI_P>;
-- 
GitLab


From d687d7559e2460ad306484f64b85a943d7127508 Mon Sep 17 00:00:00 2001
From: Corentin Labbe <clabbe@baylibre.com>
Date: Wed, 9 Feb 2022 12:03:55 +0000
Subject: [PATCH 4586/4878] ARM: dts: rockchip: fix a typo on rk3288
 crypto-controller

[ Upstream commit 3916c3619599a3970d3e6f98fb430b7c46266ada ]

crypto-controller had a typo, fix it.
In the same time, rename it to just crypto

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220209120355.1985707-1-clabbe@baylibre.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/rk3288.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 0d89ad274268b..9051fb4a267d4 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -990,7 +990,7 @@
 		status = "disabled";
 	};
 
-	crypto: cypto-controller@ff8a0000 {
+	crypto: crypto@ff8a0000 {
 		compatible = "rockchip,rk3288-crypto";
 		reg = <0x0 0xff8a0000 0x0 0x4000>;
 		interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
-- 
GitLab


From 8c70b9b470046c9c5f2badfa3048f120d89722e8 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 3 Feb 2022 20:15:29 +0100
Subject: [PATCH 4587/4878] mac80211: refuse aggregations sessions before
 authorized

[ Upstream commit a6bce78262f5dd4b50510f0aa47f3995f7b185f3 ]

If an MFP station isn't authorized, the receiver will (or
at least should) drop the action frame since it's a robust
management frame, but if we're not authorized we haven't
installed keys yet. Refuse attempts to start a session as
they'd just time out.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220203201528.ff4d5679dce9.I34bb1f2bc341e161af2d6faf74f91b332ba11285@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/agg-tx.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 190f300d8923c..4b4ab1961068f 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -9,7 +9,7 @@
  * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
  * Copyright 2007-2010, Intel Corporation
  * Copyright(c) 2015-2017 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2021 Intel Corporation
+ * Copyright (C) 2018 - 2022 Intel Corporation
  */
 
 #include <linux/ieee80211.h>
@@ -626,6 +626,14 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 		return -EINVAL;
 	}
 
+	if (test_sta_flag(sta, WLAN_STA_MFP) &&
+	    !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
+		ht_dbg(sdata,
+		       "MFP STA not authorized - deny BA session request %pM tid %d\n",
+		       sta->sta.addr, tid);
+		return -EINVAL;
+	}
+
 	/*
 	 * 802.11n-2009 11.5.1.1: If the initiating STA is an HT STA, is a
 	 * member of an IBSS, and has no other existing Block Ack agreement
-- 
GitLab


From e8ad9ecc406974deb5e7c070f51cc1d09d21dc4b Mon Sep 17 00:00:00 2001
From: Alexander Lobakin <alobakin@pm.me>
Date: Sat, 12 Feb 2022 22:21:11 +0000
Subject: [PATCH 4588/4878] MIPS: smp: fill in sibling and core maps earlier
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit f2703def339c793674010cc9f01bfe4980231808 ]

After enabling CONFIG_SCHED_CORE (landed during 5.14 cycle),
2-core 2-thread-per-core interAptiv (CPS-driven) started emitting
the following:

[    0.025698] CPU1 revision is: 0001a120 (MIPS interAptiv (multi))
[    0.048183] ------------[ cut here ]------------
[    0.048187] WARNING: CPU: 1 PID: 0 at kernel/sched/core.c:6025 sched_core_cpu_starting+0x198/0x240
[    0.048220] Modules linked in:
[    0.048233] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.17.0-rc3+ #35 b7b319f24073fd9a3c2aa7ad15fb7993eec0b26f
[    0.048247] Stack : 817f0000 00000004 327804c8 810eb050 00000000 00000004 00000000 c314fdd1
[    0.048278]         830cbd64 819c0000 81800000 817f0000 83070bf4 00000001 830cbd08 00000000
[    0.048307]         00000000 00000000 815fcbc4 00000000 00000000 00000000 00000000 00000000
[    0.048334]         00000000 00000000 00000000 00000000 817f0000 00000000 00000000 817f6f34
[    0.048361]         817f0000 818a3c00 817f0000 00000004 00000000 00000000 4dc33260 0018c933
[    0.048389]         ...
[    0.048396] Call Trace:
[    0.048399] [<8105a7bc>] show_stack+0x3c/0x140
[    0.048424] [<8131c2a0>] dump_stack_lvl+0x60/0x80
[    0.048440] [<8108b5c0>] __warn+0xc0/0xf4
[    0.048454] [<8108b658>] warn_slowpath_fmt+0x64/0x10c
[    0.048467] [<810bd418>] sched_core_cpu_starting+0x198/0x240
[    0.048483] [<810c6514>] sched_cpu_starting+0x14/0x80
[    0.048497] [<8108c0f8>] cpuhp_invoke_callback_range+0x78/0x140
[    0.048510] [<8108d914>] notify_cpu_starting+0x94/0x140
[    0.048523] [<8106593c>] start_secondary+0xbc/0x280
[    0.048539]
[    0.048543] ---[ end trace 0000000000000000 ]---
[    0.048636] Synchronize counters for CPU 1: done.

...for each but CPU 0/boot.
Basic debug printks right before the mentioned line say:

[    0.048170] CPU: 1, smt_mask:

So smt_mask, which is sibling mask obviously, is empty when entering
the function.
This is critical, as sched_core_cpu_starting() calculates
core-scheduling parameters only once per CPU start, and it's crucial
to have all the parameters filled in at that moment (at least it
uses cpu_smt_mask() which in fact is `&cpu_sibling_map[cpu]` on
MIPS).

A bit of debugging led me to that set_cpu_sibling_map() performing
the actual map calculation, was being invocated after
notify_cpu_start(), and exactly the latter function starts CPU HP
callback round (sched_core_cpu_starting() is basically a CPU HP
callback).
While the flow is same on ARM64 (maps after the notifier, although
before calling set_cpu_online()), x86 started calculating sibling
maps earlier than starting the CPU HP callbacks in Linux 4.14 (see
[0] for the reference). Neither me nor my brief tests couldn't find
any potential caveats in calculating the maps right after performing
delay calibration, but the WARN splat is now gone.
The very same debug prints now yield exactly what I expected from
them:

[    0.048433] CPU: 1, smt_mask: 0-1

[0] https://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git/commit/?id=76ce7cfe35ef

Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/kernel/smp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index ff25926c5458c..14db66dbcdad9 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -351,6 +351,9 @@ asmlinkage void start_secondary(void)
 	cpu = smp_processor_id();
 	cpu_data[cpu].udelay_val = loops_per_jiffy;
 
+	set_cpu_sibling_map(cpu);
+	set_cpu_core_map(cpu);
+
 	cpumask_set_cpu(cpu, &cpu_coherent_mask);
 	notify_cpu_starting(cpu);
 
@@ -362,9 +365,6 @@ asmlinkage void start_secondary(void)
 	/* The CPU is running and counters synchronised, now mark it online */
 	set_cpu_online(cpu, true);
 
-	set_cpu_sibling_map(cpu);
-	set_cpu_core_map(cpu);
-
 	calculate_cpu_foreign_map();
 
 	/*
-- 
GitLab


From ebe106eac68675a1e6373723d0d8765a6adf3290 Mon Sep 17 00:00:00 2001
From: Julian Braha <julianbraha@gmail.com>
Date: Mon, 17 Jan 2022 05:09:40 +0100
Subject: [PATCH 4589/4878] ARM: 9178/1: fix unmet dependency on BITREVERSE for
 HAVE_ARCH_BITREVERSE

[ Upstream commit 11c57c3ba94da74c3446924260e34e0b1950b5d7 ]

Resending this to properly add it to the patch tracker - thanks for letting
me know, Arnd :)

When ARM is enabled, and BITREVERSE is disabled,
Kbuild gives the following warning:

WARNING: unmet direct dependencies detected for HAVE_ARCH_BITREVERSE
  Depends on [n]: BITREVERSE [=n]
  Selected by [y]:
  - ARM [=y] && (CPU_32v7M [=n] || CPU_32v7 [=y]) && !CPU_32v6 [=n]

This is because ARM selects HAVE_ARCH_BITREVERSE
without selecting BITREVERSE, despite
HAVE_ARCH_BITREVERSE depending on BITREVERSE.

This unmet dependency bug was found by Kismet,
a static analysis tool for Kconfig. Please advise if this
is not the appropriate solution.

Signed-off-by: Julian Braha <julianbraha@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index b46a9fd122c81..9216e24e51646 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -45,7 +45,6 @@ config BITREVERSE
 config HAVE_ARCH_BITREVERSE
 	bool
 	default n
-	depends on BITREVERSE
 	help
 	  This option enables the use of hardware bit-reversal instructions on
 	  architectures which support such operations.
-- 
GitLab


From efdd92c18ed4f39602d50dbc4a9d918109715b8d Mon Sep 17 00:00:00 2001
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Mon, 21 Feb 2022 22:59:35 +0000
Subject: [PATCH 4590/4878] can: rcar_canfd: rcar_canfd_channel_probe():
 register the CAN device when fully ready

[ Upstream commit c5048a7b2c23ab589f3476a783bd586b663eda5b ]

Register the CAN device only when all the necessary initialization is
completed. This patch makes sure all the data structures and locks are
initialized before registering the CAN device.

Link: https://lore.kernel.org/all/20220221225935.12300-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/can/rcar/rcar_canfd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c
index de59dd6aad299..67f0f14e2bf4e 100644
--- a/drivers/net/can/rcar/rcar_canfd.c
+++ b/drivers/net/can/rcar/rcar_canfd.c
@@ -1598,15 +1598,15 @@ static int rcar_canfd_channel_probe(struct rcar_canfd_global *gpriv, u32 ch,
 
 	netif_napi_add(ndev, &priv->napi, rcar_canfd_rx_poll,
 		       RCANFD_NAPI_WEIGHT);
+	spin_lock_init(&priv->tx_lock);
+	devm_can_led_init(ndev);
+	gpriv->ch[priv->channel] = priv;
 	err = register_candev(ndev);
 	if (err) {
 		dev_err(&pdev->dev,
 			"register_candev() failed, error %d\n", err);
 		goto fail_candev;
 	}
-	spin_lock_init(&priv->tx_lock);
-	devm_can_led_init(ndev);
-	gpriv->ch[priv->channel] = priv;
 	dev_info(&pdev->dev, "device registered (channel %u)\n", priv->channel);
 	return 0;
 
-- 
GitLab


From c5ea0221c8161350c61983479cb3d088fbf6ede4 Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1990@gmail.com>
Date: Fri, 25 Feb 2022 04:52:30 -0800
Subject: [PATCH 4591/4878] atm: firestream: check the return value of
 ioremap() in fs_init()

[ Upstream commit d4e26aaea7f82ba884dcb4acfe689406bc092dc3 ]

The function ioremap() in fs_init() can fail, so its return value should
be checked.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/atm/firestream.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 0ddd611b42776..43a34aee33b82 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -1675,6 +1675,8 @@ static int fs_init(struct fs_dev *dev)
 	dev->hw_base = pci_resource_start(pci_dev, 0);
 
 	dev->base = ioremap(dev->hw_base, 0x1000);
+	if (!dev->base)
+		return 1;
 
 	reset_chip (dev);
   
-- 
GitLab


From 9a8e4a5c5b73b4445ccb6bc71f23bbc18bc96d42 Mon Sep 17 00:00:00 2001
From: Golan Ben Ami <golan.ben.ami@intel.com>
Date: Tue, 1 Mar 2022 09:29:26 +0200
Subject: [PATCH 4592/4878] iwlwifi: don't advertise TWT support

[ Upstream commit 1db5fcbba2631277b78d7f8aff99c9607d29f6d8 ]

Some APs misbehave when TWT is used and cause our firmware to crash.
We don't know a reasonable way to detect and work around this problem
in the FW yet.  To prevent these crashes, disable TWT in the driver by
stopping to advertise TWT support.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215523
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
[reworded the commit message]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20220301072926.153969-1-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 3 +--
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c  | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index cbde21e772b17..b862cfbcd6e79 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -587,8 +587,7 @@ static struct ieee80211_sband_iftype_data iwl_he_capa[] = {
 			.has_he = true,
 			.he_cap_elem = {
 				.mac_cap_info[0] =
-					IEEE80211_HE_MAC_CAP0_HTC_HE |
-					IEEE80211_HE_MAC_CAP0_TWT_REQ,
+					IEEE80211_HE_MAC_CAP0_HTC_HE,
 				.mac_cap_info[1] =
 					IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 922a7ea0cd24e..d2c6fdb702732 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -350,7 +350,6 @@ static const u8 he_if_types_ext_capa_sta[] = {
 	 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
 	 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
 	 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
-	 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
 };
 
 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = {
-- 
GitLab


From 0ba557d330946c23559aaea2d51ea649fdeca98a Mon Sep 17 00:00:00 2001
From: Manasi Navare <manasi.d.navare@intel.com>
Date: Thu, 24 Feb 2022 17:30:54 -0800
Subject: [PATCH 4593/4878] drm/vrr: Set VRR capable prop only if it is
 attached to connector
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ Upstream commit 62929726ef0ec72cbbe9440c5d125d4278b99894 ]

VRR capable property is not attached by default to the connector
It is attached only if VRR is supported.
So if the driver tries to call drm core set prop function without
it being attached that causes NULL dereference.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225013055.9282-1-manasi.d.navare@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_connector.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 717c4e7271b04..5163433ac561b 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2155,6 +2155,9 @@ EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
 void drm_connector_set_vrr_capable_property(
 		struct drm_connector *connector, bool capable)
 {
+	if (!connector->vrr_capable_property)
+		return;
+
 	drm_object_property_set_value(&connector->base,
 				      connector->vrr_capable_property,
 				      capable);
-- 
GitLab


From 3f9a8f8a952c4678594d22b601943ad95c62fa18 Mon Sep 17 00:00:00 2001
From: Sreeramya Soratkal <quic_ssramya@quicinc.com>
Date: Tue, 1 Mar 2022 11:33:20 +0530
Subject: [PATCH 4594/4878] nl80211: Update bss channel on channel switch for
 P2P_CLIENT

[ Upstream commit e50b88c4f076242358b66ddb67482b96947438f2 ]

The wdev channel information is updated post channel switch only for
the station mode and not for the other modes. Due to this, the P2P client
still points to the old value though it moved to the new channel
when the channel change is induced from the P2P GO.

Update the bss channel after CSA channel switch completion for P2P client
interface as well.

Signed-off-by: Sreeramya Soratkal <quic_ssramya@quicinc.com>
Link: https://lore.kernel.org/r/1646114600-31479-1-git-send-email-quic_ssramya@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/wireless/nl80211.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 07bd7b00b56d4..0df8b9a19952c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -17127,7 +17127,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 	wdev->chandef = *chandef;
 	wdev->preset_chandef = *chandef;
 
-	if (wdev->iftype == NL80211_IFTYPE_STATION &&
+	if ((wdev->iftype == NL80211_IFTYPE_STATION ||
+	     wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) &&
 	    !WARN_ON(!wdev->current_bss))
 		cfg80211_update_assoc_bss_entry(wdev, chandef->chan);
 
-- 
GitLab


From 2fad5b6948963bac235eac8261d4cd9165eaf1c2 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 2 Mar 2022 08:17:23 -0800
Subject: [PATCH 4595/4878] tcp: make tcp_read_sock() more robust

[ Upstream commit e3d5ea2c011ecb16fb94c56a659364e6b30fac94 ]

If recv_actor() returns an incorrect value, tcp_read_sock()
might loop forever.

Instead, issue a one time warning and make sure to make progress.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20220302161723.3910001-2-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 63c81af41b43e..a3ec2a08027b8 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1652,11 +1652,13 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
 				if (!copied)
 					copied = used;
 				break;
-			} else if (used <= len) {
-				seq += used;
-				copied += used;
-				offset += used;
 			}
+			if (WARN_ON_ONCE(used > len))
+				used = len;
+			seq += used;
+			copied += used;
+			offset += used;
+
 			/* If recv_actor drops the lock (e.g. TCP splice
 			 * receive) the skb pointer might be invalid when
 			 * getting here: tcp_collapse might have deleted it
-- 
GitLab


From 2490695ffdbafbe79fb9c204df33a4597b1473b4 Mon Sep 17 00:00:00 2001
From: Niels Dossche <dossche.niels@gmail.com>
Date: Tue, 1 Mar 2022 23:28:22 +0100
Subject: [PATCH 4596/4878] sfc: extend the locking on mcdi->seqno

[ Upstream commit f1fb205efb0ccca55626fd4ef38570dd16b44719 ]

seqno could be read as a stale value outside of the lock. The lock is
already acquired to protect the modification of seqno against a possible
race condition. Place the reading of this value also inside this locking
to protect it against a possible race condition.

Signed-off-by: Niels Dossche <dossche.niels@gmail.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/sfc/mcdi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c
index be6bfd6b7ec75..50baf62b2cbc6 100644
--- a/drivers/net/ethernet/sfc/mcdi.c
+++ b/drivers/net/ethernet/sfc/mcdi.c
@@ -163,9 +163,9 @@ static void efx_mcdi_send_request(struct efx_nic *efx, unsigned cmd,
 	/* Serialise with efx_mcdi_ev_cpl() and efx_mcdi_ev_death() */
 	spin_lock_bh(&mcdi->iface_lock);
 	++mcdi->seqno;
+	seqno = mcdi->seqno & SEQ_MASK;
 	spin_unlock_bh(&mcdi->iface_lock);
 
-	seqno = mcdi->seqno & SEQ_MASK;
 	xflags = 0;
 	if (mcdi->mode == MCDI_MODE_EVENTS)
 		xflags |= MCDI_HEADER_XFLAGS_EVREQ;
-- 
GitLab


From 8fdaab341bad8a8449fcdca349e5081e6f62db09 Mon Sep 17 00:00:00 2001
From: Chengming Zhou <zhouchengming@bytedance.com>
Date: Fri, 4 Mar 2022 20:29:04 -0800
Subject: [PATCH 4597/4878] kselftest/vm: fix tests build with old libc

[ Upstream commit b773827e361952b3f53ac6fa4c4e39ccd632102e ]

The error message when I build vm tests on debian10 (GLIBC 2.28):

    userfaultfd.c: In function `userfaultfd_pagemap_test':
    userfaultfd.c:1393:37: error: `MADV_PAGEOUT' undeclared (first use
    in this function); did you mean `MADV_RANDOM'?
      if (madvise(area_dst, test_pgsize, MADV_PAGEOUT))
                                         ^~~~~~~~~~~~
                                         MADV_RANDOM

This patch includes these newer definitions from UAPI linux/mman.h, is
useful to fix tests build on systems without these definitions in glibc
sys/mman.h.

Link: https://lkml.kernel.org/r/20220227055330.43087-2-zhouchengming@bytedance.com
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/vm/userfaultfd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index d418ca5f90399..034245ea397f6 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -46,6 +46,7 @@
 #include <signal.h>
 #include <poll.h>
 #include <string.h>
+#include <linux/mman.h>
 #include <sys/mman.h>
 #include <sys/syscall.h>
 #include <sys/ioctl.h>
-- 
GitLab


From dc1163203ae6e24b86168390fe5b4a3295fcba7f Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Sun, 11 Apr 2021 01:46:40 +0100
Subject: [PATCH 4598/4878] io_uring: return back safer resurrect

commit f70865db5ff35f5ed0c7e9ef63e7cca3d4947f04 upstream.

Revert of revert of "io_uring: wait potential ->release() on resurrect",
which adds a helper for resurrect not racing completion reinit, as was
removed because of a strange bug with no clear root or link to the
patch.

Was improved, instead of rcu_synchronize(), just wait_for_completion()
because we're at 0 refs and it will happen very shortly. Specifically
use non-interruptible version to ignore all pending signals that may
have ended prior interruptible wait.

This reverts commit cb5e1b81304e089ee3ca948db4d29f71902eb575.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7a080c20f686d026efade810b116b72f88abaff9.1618101759.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/io_uring.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 019cbde8c3d67..fd188b9721511 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1009,6 +1009,18 @@ static inline bool __io_match_files(struct io_kiocb *req,
 		req->work.identity->files == files;
 }
 
+static void io_refs_resurrect(struct percpu_ref *ref, struct completion *compl)
+{
+	bool got = percpu_ref_tryget(ref);
+
+	/* already at zero, wait for ->release() */
+	if (!got)
+		wait_for_completion(compl);
+	percpu_ref_resurrect(ref);
+	if (got)
+		percpu_ref_put(ref);
+}
+
 static bool io_match_task(struct io_kiocb *head,
 			  struct task_struct *task,
 			  struct files_struct *files)
@@ -9757,12 +9769,11 @@ static int __io_uring_register(struct io_ring_ctx *ctx, unsigned opcode,
 			if (ret < 0)
 				break;
 		} while (1);
-
 		mutex_lock(&ctx->uring_lock);
 
 		if (ret) {
-			percpu_ref_resurrect(&ctx->refs);
-			goto out_quiesce;
+			io_refs_resurrect(&ctx->refs, &ctx->ref_comp);
+			return ret;
 		}
 	}
 
@@ -9855,7 +9866,6 @@ out:
 	if (io_register_op_must_quiesce(opcode)) {
 		/* bring the ctx back to life */
 		percpu_ref_reinit(&ctx->refs);
-out_quiesce:
 		reinit_completion(&ctx->ref_comp);
 	}
 	return ret;
-- 
GitLab


From 7a0d13ef67a1084e1a77bf4d2334cc482699f861 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Tue, 15 Mar 2022 13:57:20 +0000
Subject: [PATCH 4599/4878] arm64: kvm: Fix copy-and-paste error in bhb
 templates for v5.10 stable

KVM's infrastructure for spectre mitigations in the vectors in v5.10 and
earlier is different, it uses templates which are used to build a set of
vectors at runtime.

There are two copy-and-paste errors in the templates: __spectre_bhb_loop_k24
should loop 24 times and __spectre_bhb_loop_k32 32.

Fix these.

Reported-by: Pavel Machek <pavel@denx.de>
Link: https://lore.kernel.org/all/20220310234858.GB16308@amd/
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm64/kvm/hyp/smccc_wa.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/smccc_wa.S b/arch/arm64/kvm/hyp/smccc_wa.S
index 24b281912463d..533b0aa73256a 100644
--- a/arch/arm64/kvm/hyp/smccc_wa.S
+++ b/arch/arm64/kvm/hyp/smccc_wa.S
@@ -68,7 +68,7 @@ SYM_DATA_START(__spectre_bhb_loop_k24)
 	esb
 	sub	sp, sp, #(8 * 2)
 	stp	x0, x1, [sp, #(8 * 0)]
-	mov	x0, #8
+	mov	x0, #24
 2:	b	. + 4
 	subs	x0, x0, #1
 	b.ne	2b
@@ -85,7 +85,7 @@ SYM_DATA_START(__spectre_bhb_loop_k32)
 	esb
 	sub	sp, sp, #(8 * 2)
 	stp	x0, x1, [sp, #(8 * 0)]
-	mov	x0, #8
+	mov	x0, #32
 2:	b	. + 4
 	subs	x0, x0, #1
 	b.ne	2b
-- 
GitLab


From 4c8814277b5dc2b9d2745c6493614b1ce10cef09 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 19 Mar 2022 13:44:47 +0100
Subject: [PATCH 4600/4878] Linux 5.10.107

Link: https://lore.kernel.org/r/20220317124525.955110315@linuxfoundation.org
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Fox Chen <foxhlchen@gmail.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 7b0dffadf6a89..c0be463910578 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 106
+SUBLEVEL = 107
 EXTRAVERSION =
 NAME = Dare mighty things
 
-- 
GitLab


From c05355c5f823b4ae49c4925b1b105d370549013e Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Mon, 7 Mar 2022 16:08:12 +1100
Subject: [PATCH 4601/4878] ANDROID: kasan: sync vmalloc support with
 linux-next/akpm

The FROMLIST patches merged in aosp/1974918 that add vmalloc support to
KASAN now have a few fixes staged in linux-next/akpm. Sync the changes.

Bug: 217222520
Bug: 222221793
Change-Id: I33dd30e3834a4d1bb8eac611b350004afdb08a74
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 kernel/scs.c      |  5 +++--
 lib/test_kasan.c  | 17 +++++++++++------
 mm/kasan/shadow.c |  5 +++--
 3 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/kernel/scs.c b/kernel/scs.c
index b83bc9251f996..1033a76a32845 100644
--- a/kernel/scs.c
+++ b/kernel/scs.c
@@ -32,7 +32,8 @@ static void *__scs_alloc(int node)
 	for (i = 0; i < NR_CACHED_SCS; i++) {
 		s = this_cpu_xchg(scs_cache[i], NULL);
 		if (s) {
-			kasan_unpoison_vmalloc(s, SCS_SIZE, KASAN_VMALLOC_NONE);
+			kasan_unpoison_vmalloc(s, SCS_SIZE,
+					       KASAN_VMALLOC_PROT_NORMAL);
 			memset(s, 0, SCS_SIZE);
 			return s;
 		}
@@ -78,7 +79,7 @@ void scs_free(void *s)
 		if (this_cpu_cmpxchg(scs_cache[i], 0, s) == NULL)
 			return;
 
-	kasan_unpoison_vmalloc(s, SCS_SIZE, KASAN_VMALLOC_NONE);
+	kasan_unpoison_vmalloc(s, SCS_SIZE, KASAN_VMALLOC_PROT_NORMAL);
 	vfree_atomic(s);
 }
 
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 7d3c5111bbfc5..06414e1ee3be6 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -1062,7 +1062,6 @@ static void kmalloc_double_kzfree(struct kunit *test)
 static void vmalloc_helpers_tags(struct kunit *test)
 {
 	void *ptr;
-	int rv;
 
 	/* This test is intended for tag-based modes. */
 	KASAN_TEST_NEEDS_CONFIG_OFF(test, CONFIG_KASAN_GENERIC);
@@ -1080,11 +1079,17 @@ static void vmalloc_helpers_tags(struct kunit *test)
 	KUNIT_ASSERT_TRUE(test, is_vmalloc_addr(ptr));
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, vmalloc_to_page(ptr));
 
-	/* Make sure vmalloc'ed memory permissions can be changed. */
-	rv = set_memory_ro((unsigned long)ptr, 1);
-	KUNIT_ASSERT_GE(test, rv, 0);
-	rv = set_memory_rw((unsigned long)ptr, 1);
-	KUNIT_ASSERT_GE(test, rv, 0);
+#if !IS_MODULE(CONFIG_KASAN_KUNIT_TEST)
+	{
+		int rv;
+
+		/* Make sure vmalloc'ed memory permissions can be changed. */
+		rv = set_memory_ro((unsigned long)ptr, 1);
+		KUNIT_ASSERT_GE(test, rv, 0);
+		rv = set_memory_rw((unsigned long)ptr, 1);
+		KUNIT_ASSERT_GE(test, rv, 0);
+	}
+#endif
 
 	vfree(ptr);
 }
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index 47fee6d7d0a57..a3438661c777b 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -484,10 +484,11 @@ void *__kasan_unpoison_vmalloc(const void *start, unsigned long size,
 		return (void *)start;
 
 	/*
-	 * Don't tag executable memory.
+	 * Don't tag executable memory with the tag-based mode.
 	 * The kernel doesn't tolerate having the PC register tagged.
 	 */
-	if (!(flags & KASAN_VMALLOC_PROT_NORMAL))
+	if (IS_ENABLED(CONFIG_KASAN_SW_TAGS) &&
+	    !(flags & KASAN_VMALLOC_PROT_NORMAL))
 		return (void *)start;
 
 	start = set_tag(start, kasan_random_tag());
-- 
GitLab


From f1e8564c553006badd89fff54cc9e294f6fea59a Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Mon, 7 Mar 2022 16:08:12 +1100
Subject: [PATCH 4602/4878] FROMLIST: kasan, scs: support tagged vmalloc
 mappings

Fix up the custom KASAN instrumentation for Shadow Call Stack to support
vmalloc() mappings and pointers being tagged.

- Use the tagged pointer returned by kasan_unpoison_vmalloc() in
  __scs_alloc() when calling memset() to avoid false-positives.

- Do not return a tagged Shadow Call Stack pointer from __scs_alloc(),
  as this might lead to conflicts with the instrumentation.

Link: https://lkml.kernel.org/r/2f6605e3a358cf64d73a05710cb3da356886ad29.1646233925.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit bd2c296805cff9572080bf56807c16d1dd382260
 git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git akpm)
Link: https://lore.kernel.org/all/2f6605e3a358cf64d73a05710cb3da356886ad29.1646233925.git.andreyknvl@google.com/
Bug: 217222520
Bug: 222221793
Change-Id: I9e6e4cd303e0815a5b092ba6ec28638bd1f7bc2c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 kernel/scs.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/scs.c b/kernel/scs.c
index 1033a76a32845..b7e1b096d9060 100644
--- a/kernel/scs.c
+++ b/kernel/scs.c
@@ -32,16 +32,19 @@ static void *__scs_alloc(int node)
 	for (i = 0; i < NR_CACHED_SCS; i++) {
 		s = this_cpu_xchg(scs_cache[i], NULL);
 		if (s) {
-			kasan_unpoison_vmalloc(s, SCS_SIZE,
-					       KASAN_VMALLOC_PROT_NORMAL);
+			s = kasan_unpoison_vmalloc(s, SCS_SIZE,
+						   KASAN_VMALLOC_PROT_NORMAL);
 			memset(s, 0, SCS_SIZE);
-			return s;
+			goto out;
 		}
 	}
 
-	return __vmalloc_node_range(SCS_SIZE, 1, VMALLOC_START, VMALLOC_END,
+	s = __vmalloc_node_range(SCS_SIZE, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_SCS, PAGE_KERNEL, 0, node,
 				    __builtin_return_address(0));
+
+out:
+	return kasan_reset_tag(s);
 }
 
 void *scs_alloc(int node)
-- 
GitLab


From 40185ceea189e3433fe20914e4eca969efec687f Mon Sep 17 00:00:00 2001
From: Daeho Jeong <daehojeong@google.com>
Date: Fri, 18 Mar 2022 12:13:23 -0700
Subject: [PATCH 4603/4878] f2fs: make gc_urgent and gc_segment_mode sysfs node
 readable

Changed a way of showing values of them to use strings.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/sysfs.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 8fad502d1b371..f240f55933940 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -41,6 +41,16 @@ enum {
 	ATGC_INFO,	/* struct atgc_management */
 };
 
+static const char *gc_mode_names[MAX_GC_MODE] = {
+	"GC_NORMAL",
+	"GC_IDLE_CB",
+	"GC_IDLE_GREEDY",
+	"GC_IDLE_AT",
+	"GC_URGENT_HIGH",
+	"GC_URGENT_LOW",
+	"GC_URGENT_MID"
+};
+
 struct f2fs_attr {
 	struct attribute attr;
 	ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
@@ -317,8 +327,13 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
 		return sysfs_emit(buf, "%u\n", sbi->compr_new_inode);
 #endif
 
+	if (!strcmp(a->attr.name, "gc_urgent"))
+		return sysfs_emit(buf, "%s\n",
+				gc_mode_names[sbi->gc_mode]);
+
 	if (!strcmp(a->attr.name, "gc_segment_mode"))
-		return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode);
+		return sysfs_emit(buf, "%s\n",
+				gc_mode_names[sbi->gc_segment_mode]);
 
 	if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
 		return sysfs_emit(buf, "%u\n",
-- 
GitLab


From 59e664cd0ee83620e5211925032083ab4cb4daf6 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Mon, 21 Mar 2022 23:22:11 +0800
Subject: [PATCH 4604/4878] f2fs: fix to do sanity check on
 .cp_pack_total_block_count

As bughunter reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=215709

f2fs may hang when mounting a fuzzed image, the dmesg shows as below:

__filemap_get_folio+0x3a9/0x590
pagecache_get_page+0x18/0x60
__get_meta_page+0x95/0x460 [f2fs]
get_checkpoint_version+0x2a/0x1e0 [f2fs]
validate_checkpoint+0x8e/0x2a0 [f2fs]
f2fs_get_valid_checkpoint+0xd0/0x620 [f2fs]
f2fs_fill_super+0xc01/0x1d40 [f2fs]
mount_bdev+0x18a/0x1c0
f2fs_mount+0x15/0x20 [f2fs]
legacy_get_tree+0x28/0x50
vfs_get_tree+0x27/0xc0
path_mount+0x480/0xaa0
do_mount+0x7c/0xa0
__x64_sys_mount+0x8b/0xe0
do_syscall_64+0x38/0xc0
entry_SYSCALL_64_after_hwframe+0x44/0xae

The root cause is cp_pack_total_block_count field in checkpoint was fuzzed
to one, as calcuated, two cp pack block locates in the same block address,
so then read latter cp pack block, it will block on the page lock due to
the lock has already held when reading previous cp pack block, fix it by
adding sanity check for cp_pack_total_block_count.

Cc: stable@vger.kernel.org
Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index dea5b5c57bd85..bd2a0f5854aaa 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -875,6 +875,7 @@ static struct page *validate_checkpoint(struct f2fs_sb_info *sbi,
 	struct page *cp_page_1 = NULL, *cp_page_2 = NULL;
 	struct f2fs_checkpoint *cp_block = NULL;
 	unsigned long long cur_version = 0, pre_version = 0;
+	unsigned int cp_blocks;
 	int err;
 
 	err = get_checkpoint_version(sbi, cp_addr, &cp_block,
@@ -882,15 +883,16 @@ static struct page *validate_checkpoint(struct f2fs_sb_info *sbi,
 	if (err)
 		return NULL;
 
-	if (le32_to_cpu(cp_block->cp_pack_total_block_count) >
-					sbi->blocks_per_seg) {
+	cp_blocks = le32_to_cpu(cp_block->cp_pack_total_block_count);
+
+	if (cp_blocks > sbi->blocks_per_seg || cp_blocks <= F2FS_CP_PACKS) {
 		f2fs_warn(sbi, "invalid cp_pack_total_block_count:%u",
 			  le32_to_cpu(cp_block->cp_pack_total_block_count));
 		goto invalid_cp;
 	}
 	pre_version = *version;
 
-	cp_addr += le32_to_cpu(cp_block->cp_pack_total_block_count) - 1;
+	cp_addr += cp_blocks - 1;
 	err = get_checkpoint_version(sbi, cp_addr, &cp_block,
 					&cp_page_2, version);
 	if (err)
-- 
GitLab


From 21557656afb6eeba99eb72f8d3d67bc57e9613fe Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 9 Mar 2022 17:30:38 -0800
Subject: [PATCH 4605/4878] ANDROID: selftests: incfs: Add
 -fno-omit-frame-pointer

Without it incfs/incfs_perf runtime fails in format_signature:

malloc(): invalid size (unsorted)
Aborted

When compiled with gcc version 11.2.0.

Also add check for NULL after the malloc, and remove unneeded
space for uint32_t in signing_section.

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I62b775140e4b89f75335cbd65665cf6a3e0fe964
---
 tools/testing/selftests/filesystems/incfs/Makefile | 4 ++--
 tools/testing/selftests/filesystems/incfs/utils.c  | 5 ++++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/filesystems/incfs/Makefile b/tools/testing/selftests/filesystems/incfs/Makefile
index f3798029247a3..5a2f6301c4b27 100644
--- a/tools/testing/selftests/filesystems/incfs/Makefile
+++ b/tools/testing/selftests/filesystems/incfs/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
-CFLAGS += -D_FILE_OFFSET_BITS=64 -Wall -Werror -I../.. -I../../../../..
-LDLIBS := -llz4 -lzstd -lcrypto -lpthread
+CFLAGS += -D_FILE_OFFSET_BITS=64 -Wall -Werror -I../.. -I../../../../.. -fno-omit-frame-pointer -fsanitize=address -g
+LDLIBS := -llz4 -lzstd -lcrypto -lpthread -fsanitize=address
 TEST_GEN_PROGS := incfs_test incfs_stress incfs_perf
 
 include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/incfs/utils.c b/tools/testing/selftests/filesystems/incfs/utils.c
index e60b0d36f49df..0411d912ae053 100644
--- a/tools/testing/selftests/filesystems/incfs/utils.c
+++ b/tools/testing/selftests/filesystems/incfs/utils.c
@@ -116,6 +116,9 @@ size_t format_signature(void **buf, const char *root_hash, const char *add_data)
 	size_t size = sizeof(struct signature_blob) + strlen(add_data) + 1;
 	struct signature_blob *sb = malloc(size);
 
+	if (!sb)
+		return 0;
+
 	*sb = (struct signature_blob){
 		.version = INCFS_SIGNATURE_VERSION,
 		.hash_section_size = sizeof(struct hash_section),
@@ -126,7 +129,7 @@ size_t format_signature(void **buf, const char *root_hash, const char *add_data)
 				.salt_size = 0,
 				.hash_size = SHA256_DIGEST_SIZE,
 			},
-		.signing_section_size = sizeof(uint32_t) + strlen(add_data) + 1,
+		.signing_section_size = strlen(add_data) + 1,
 	};
 
 	memcpy(sb->hash_section.hash, root_hash, SHA256_DIGEST_SIZE);
-- 
GitLab


From b6da748bab947a89c5bc002883740e831aa78c87 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 28 Jan 2022 15:39:36 -0800
Subject: [PATCH 4606/4878] fscrypt: add functions for direct I/O support

Encrypted files traditionally haven't supported DIO, due to the need to
encrypt/decrypt the data.  However, when the encryption is implemented
using inline encryption (blk-crypto) instead of the traditional
filesystem-layer encryption, it is straightforward to support DIO.

In preparation for supporting this, add the following functions:

- fscrypt_dio_supported() checks whether a DIO request is supported as
  far as encryption is concerned.  Encrypted files will only support DIO
  when inline encryption is used and the I/O request is properly
  aligned; this function checks these preconditions.

- fscrypt_limit_io_blocks() limits the length of a bio to avoid crossing
  a place in the file that a bio with an encryption context cannot
  cross due to a DUN discontiguity.  This function is needed by
  filesystems that use the iomap DIO implementation (which operates
  directly on logical ranges, so it won't use fscrypt_mergeable_bio())
  and that support FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32.

Co-developed-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220128233940.79464-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/crypto.c       |  8 ++++
 fs/crypto/inline_crypt.c | 93 ++++++++++++++++++++++++++++++++++++++++
 include/linux/fscrypt.h  | 18 ++++++++
 3 files changed, 119 insertions(+)

diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index 4ef3f714046aa..4fcca79f39aeb 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -69,6 +69,14 @@ void fscrypt_free_bounce_page(struct page *bounce_page)
 }
 EXPORT_SYMBOL(fscrypt_free_bounce_page);
 
+/*
+ * Generate the IV for the given logical block number within the given file.
+ * For filenames encryption, lblk_num == 0.
+ *
+ * Keep this in sync with fscrypt_limit_io_blocks().  fscrypt_limit_io_blocks()
+ * needs to know about any IV generation methods where the low bits of IV don't
+ * simply contain the lblk_num (e.g., IV_INO_LBLK_32).
+ */
 void fscrypt_generate_iv(union fscrypt_iv *iv, u64 lblk_num,
 			 const struct fscrypt_info *ci)
 {
diff --git a/fs/crypto/inline_crypt.c b/fs/crypto/inline_crypt.c
index c57bebfa48fea..93c2ca8580923 100644
--- a/fs/crypto/inline_crypt.c
+++ b/fs/crypto/inline_crypt.c
@@ -17,6 +17,7 @@
 #include <linux/buffer_head.h>
 #include <linux/sched/mm.h>
 #include <linux/slab.h>
+#include <linux/uio.h>
 
 #include "fscrypt_private.h"
 
@@ -315,6 +316,10 @@ EXPORT_SYMBOL_GPL(fscrypt_set_bio_crypt_ctx_bh);
  *
  * fscrypt_set_bio_crypt_ctx() must have already been called on the bio.
  *
+ * This function isn't required in cases where crypto-mergeability is ensured in
+ * another way, such as I/O targeting only a single file (and thus a single key)
+ * combined with fscrypt_limit_io_blocks() to ensure DUN contiguity.
+ *
  * Return: true iff the I/O is mergeable
  */
 bool fscrypt_mergeable_bio(struct bio *bio, const struct inode *inode,
@@ -363,3 +368,91 @@ bool fscrypt_mergeable_bio_bh(struct bio *bio,
 	return fscrypt_mergeable_bio(bio, inode, next_lblk);
 }
 EXPORT_SYMBOL_GPL(fscrypt_mergeable_bio_bh);
+
+/**
+ * fscrypt_dio_supported() - check whether a DIO (direct I/O) request is
+ *			     supported as far as encryption is concerned
+ * @iocb: the file and position the I/O is targeting
+ * @iter: the I/O data segment(s)
+ *
+ * Return: %true if there are no encryption constraints that prevent DIO from
+ *	   being supported; %false if DIO is unsupported.  (Note that in the
+ *	   %true case, the filesystem might have other, non-encryption-related
+ *	   constraints that prevent DIO from actually being supported.)
+ */
+bool fscrypt_dio_supported(struct kiocb *iocb, struct iov_iter *iter)
+{
+	const struct inode *inode = file_inode(iocb->ki_filp);
+	const unsigned int blocksize = i_blocksize(inode);
+
+	/* If the file is unencrypted, no veto from us. */
+	if (!fscrypt_needs_contents_encryption(inode))
+		return true;
+
+	/* We only support DIO with inline crypto, not fs-layer crypto. */
+	if (!fscrypt_inode_uses_inline_crypto(inode))
+		return false;
+
+	/*
+	 * Since the granularity of encryption is filesystem blocks, the file
+	 * position and total I/O length must be aligned to the filesystem block
+	 * size -- not just to the block device's logical block size as is
+	 * traditionally the case for DIO on many filesystems.
+	 *
+	 * We require that the user-provided memory buffers be filesystem block
+	 * aligned too.  It is simpler to have a single alignment value required
+	 * for all properties of the I/O, as is normally the case for DIO.
+	 * Also, allowing less aligned buffers would imply that data units could
+	 * cross bvecs, which would greatly complicate the I/O stack, which
+	 * assumes that bios can be split at any bvec boundary.
+	 */
+	if (!IS_ALIGNED(iocb->ki_pos | iov_iter_alignment(iter), blocksize))
+		return false;
+
+	return true;
+}
+EXPORT_SYMBOL_GPL(fscrypt_dio_supported);
+
+/**
+ * fscrypt_limit_io_blocks() - limit I/O blocks to avoid discontiguous DUNs
+ * @inode: the file on which I/O is being done
+ * @lblk: the block at which the I/O is being started from
+ * @nr_blocks: the number of blocks we want to submit starting at @lblk
+ *
+ * Determine the limit to the number of blocks that can be submitted in a bio
+ * targeting @lblk without causing a data unit number (DUN) discontiguity.
+ *
+ * This is normally just @nr_blocks, as normally the DUNs just increment along
+ * with the logical blocks.  (Or the file is not encrypted.)
+ *
+ * In rare cases, fscrypt can be using an IV generation method that allows the
+ * DUN to wrap around within logically contiguous blocks, and that wraparound
+ * will occur.  If this happens, a value less than @nr_blocks will be returned
+ * so that the wraparound doesn't occur in the middle of a bio, which would
+ * cause encryption/decryption to produce wrong results.
+ *
+ * Return: the actual number of blocks that can be submitted
+ */
+u64 fscrypt_limit_io_blocks(const struct inode *inode, u64 lblk, u64 nr_blocks)
+{
+	const struct fscrypt_info *ci;
+	u32 dun;
+
+	if (!fscrypt_inode_uses_inline_crypto(inode))
+		return nr_blocks;
+
+	if (nr_blocks <= 1)
+		return nr_blocks;
+
+	ci = inode->i_crypt_info;
+	if (!(fscrypt_policy_flags(&ci->ci_policy) &
+	      FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32))
+		return nr_blocks;
+
+	/* With IV_INO_LBLK_32, the DUN can wrap around from U32_MAX to 0. */
+
+	dun = ci->ci_hashed_ino + lblk;
+
+	return min_t(u64, nr_blocks, (u64)U32_MAX + 1 - dun);
+}
+EXPORT_SYMBOL_GPL(fscrypt_limit_io_blocks);
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 91ea9477e9bd2..50d92d805bd8c 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -714,6 +714,10 @@ bool fscrypt_mergeable_bio(struct bio *bio, const struct inode *inode,
 bool fscrypt_mergeable_bio_bh(struct bio *bio,
 			      const struct buffer_head *next_bh);
 
+bool fscrypt_dio_supported(struct kiocb *iocb, struct iov_iter *iter);
+
+u64 fscrypt_limit_io_blocks(const struct inode *inode, u64 lblk, u64 nr_blocks);
+
 #else /* CONFIG_FS_ENCRYPTION_INLINE_CRYPT */
 
 static inline bool __fscrypt_inode_uses_inline_crypto(const struct inode *inode)
@@ -742,6 +746,20 @@ static inline bool fscrypt_mergeable_bio_bh(struct bio *bio,
 {
 	return true;
 }
+
+static inline bool fscrypt_dio_supported(struct kiocb *iocb,
+					 struct iov_iter *iter)
+{
+	const struct inode *inode = file_inode(iocb->ki_filp);
+
+	return !fscrypt_needs_contents_encryption(inode);
+}
+
+static inline u64 fscrypt_limit_io_blocks(const struct inode *inode, u64 lblk,
+					  u64 nr_blocks)
+{
+	return nr_blocks;
+}
 #endif /* !CONFIG_FS_ENCRYPTION_INLINE_CRYPT */
 
 /**
-- 
GitLab


From 4b613cb0c405e2aed33dfcfef7b557ac82bb734a Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 28 Jan 2022 15:39:37 -0800
Subject: [PATCH 4607/4878] iomap: support direct I/O with fscrypt using
 blk-crypto

Encrypted files traditionally haven't supported DIO, due to the need to
encrypt/decrypt the data.  However, when the encryption is implemented
using inline encryption (blk-crypto) instead of the traditional
filesystem-layer encryption, it is straightforward to support DIO.

Add support for this to the iomap DIO implementation by calling
fscrypt_set_bio_crypt_ctx() to set encryption contexts on the bios.

Don't check for the rare case where a DUN (crypto data unit number)
discontiguity creates a boundary that bios must not cross.  Instead,
filesystems are expected to handle this in ->iomap_begin() by limiting
the length of the mapping so that iomap doesn't have to worry about it.

Co-developed-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220128233940.79464-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/iomap/direct-io.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 53e3cde0e3079..fff29a3d34f42 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -6,6 +6,7 @@
 #include <linux/module.h>
 #include <linux/compiler.h>
 #include <linux/fs.h>
+#include <linux/fscrypt.h>
 #include <linux/iomap.h>
 #include <linux/backing-dev.h>
 #include <linux/uio.h>
@@ -185,11 +186,14 @@ static void
 iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos,
 		unsigned len)
 {
+	struct inode *inode = file_inode(dio->iocb->ki_filp);
 	struct page *page = ZERO_PAGE(0);
 	int flags = REQ_SYNC | REQ_IDLE;
 	struct bio *bio;
 
 	bio = bio_alloc(GFP_KERNEL, 1);
+	fscrypt_set_bio_crypt_ctx(bio, inode, pos >> inode->i_blkbits,
+				  GFP_KERNEL);
 	bio_set_dev(bio, iomap->bdev);
 	bio->bi_iter.bi_sector = iomap_sector(iomap, pos);
 	bio->bi_private = dio;
@@ -272,6 +276,8 @@ iomap_dio_bio_actor(struct inode *inode, loff_t pos, loff_t length,
 		}
 
 		bio = bio_alloc(GFP_KERNEL, nr_pages);
+		fscrypt_set_bio_crypt_ctx(bio, inode, pos >> inode->i_blkbits,
+					  GFP_KERNEL);
 		bio_set_dev(bio, iomap->bdev);
 		bio->bi_iter.bi_sector = iomap_sector(iomap, pos);
 		bio->bi_write_hint = dio->iocb->ki_hint;
-- 
GitLab


From 9f7cc5fda464aca966e39340015221a1384a9307 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 28 Jan 2022 15:39:38 -0800
Subject: [PATCH 4608/4878] ext4: support direct I/O with fscrypt using
 blk-crypto

Encrypted files traditionally haven't supported DIO, due to the need to
encrypt/decrypt the data.  However, when the encryption is implemented
using inline encryption (blk-crypto) instead of the traditional
filesystem-layer encryption, it is straightforward to support DIO.

Therefore, make ext4 support DIO on files that are using inline
encryption.  Since ext4 uses iomap for DIO, and fscrypt support was
already added to iomap DIO, this just requires two small changes:

- Let DIO proceed when supported, by checking fscrypt_dio_supported()
  instead of assuming that encrypted files never support DIO.

- In ext4_iomap_begin(), use fscrypt_limit_io_blocks() to limit the
  length of the mapping in the rare case where a DUN discontiguity
  occurs in the middle of an extent.  The iomap DIO implementation
  requires this, since it assumes that it can submit a bio covering (up
  to) the whole mapping, without checking fscrypt constraints itself.

Co-developed-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Acked-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jaegeuk Kim <jaegeuk@kernel.org>
Link: https://lore.kernel.org/r/20220128233940.79464-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/ext4/file.c  | 10 ++++++----
 fs/ext4/inode.c |  7 +++++++
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 3ed8c048fb12c..be77b7732c8eb 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -36,9 +36,11 @@
 #include "acl.h"
 #include "truncate.h"
 
-static bool ext4_dio_supported(struct inode *inode)
+static bool ext4_dio_supported(struct kiocb *iocb, struct iov_iter *iter)
 {
-	if (IS_ENABLED(CONFIG_FS_ENCRYPTION) && IS_ENCRYPTED(inode))
+	struct inode *inode = file_inode(iocb->ki_filp);
+
+	if (!fscrypt_dio_supported(iocb, iter))
 		return false;
 	if (fsverity_active(inode))
 		return false;
@@ -61,7 +63,7 @@ static ssize_t ext4_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
 		inode_lock_shared(inode);
 	}
 
-	if (!ext4_dio_supported(inode)) {
+	if (!ext4_dio_supported(iocb, to)) {
 		inode_unlock_shared(inode);
 		/*
 		 * Fallback to buffered I/O if the operation being performed on
@@ -495,7 +497,7 @@ static ssize_t ext4_dio_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	}
 
 	/* Fallback to buffered I/O if the inode does not support direct I/O. */
-	if (!ext4_dio_supported(inode)) {
+	if (!ext4_dio_supported(iocb, from)) {
 		if (ilock_shared)
 			inode_unlock_shared(inode);
 		else
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0d8385aea8981..77d8d4b7966c5 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3473,6 +3473,13 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	if (ret < 0)
 		return ret;
 out:
+	/*
+	 * When inline encryption is enabled, sometimes I/O to an encrypted file
+	 * has to be broken up to guarantee DUN contiguity.  Handle this by
+	 * limiting the length of the mapping returned.
+	 */
+	map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);
+
 	ext4_set_iomap(inode, iomap, &map, offset, length);
 
 	return 0;
-- 
GitLab


From 165421972359f4160d7b2f7a107e44c2603e26bc Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 28 Jan 2022 15:39:39 -0800
Subject: [PATCH 4609/4878] f2fs: support direct I/O with fscrypt using
 blk-crypto

Encrypted files traditionally haven't supported DIO, due to the need to
encrypt/decrypt the data.  However, when the encryption is implemented
using inline encryption (blk-crypto) instead of the traditional
filesystem-layer encryption, it is straightforward to support DIO.

Therefore, make f2fs support DIO on files that are using inline
encryption.  Since f2fs uses iomap for DIO, and fscrypt support was
already added to iomap DIO, this just requires two small changes:

- Let DIO proceed when supported, by checking fscrypt_dio_supported()
  instead of assuming that encrypted files never support DIO.

- In f2fs_iomap_begin(), use fscrypt_limit_io_blocks() to limit the
  length of the mapping in the rare case where a DUN discontiguity
  occurs in the middle of an extent.  The iomap DIO implementation
  requires this, since it assumes that it can submit a bio covering (up
  to) the whole mapping, without checking fscrypt constraints itself.

Co-developed-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Link: https://lore.kernel.org/r/20220128233940.79464-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/f2fs/data.c | 7 +++++++
 fs/f2fs/f2fs.h | 6 +++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 2967c4ea3267a..fe419ac14e4eb 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -4079,6 +4079,13 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 
 	iomap->offset = blks_to_bytes(inode, map.m_lblk);
 
+	/*
+	 * When inline encryption is enabled, sometimes I/O to an encrypted file
+	 * has to be broken up to guarantee DUN contiguity.  Handle this by
+	 * limiting the length of the mapping returned.
+	 */
+	map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len);
+
 	if (map.m_flags & (F2FS_MAP_MAPPED | F2FS_MAP_UNWRITTEN)) {
 		iomap->length = blks_to_bytes(inode, map.m_len);
 		if (map.m_flags & F2FS_MAP_MAPPED) {
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index f4bdfa7af3baa..6b5b3e293ae1f 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -4474,7 +4474,11 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	int rw = iov_iter_rw(iter);
 
-	if (f2fs_post_read_required(inode))
+	if (!fscrypt_dio_supported(iocb, iter))
+		return true;
+	if (fsverity_active(inode))
+		return true;
+	if (f2fs_compressed_file(inode))
 		return true;
 
 	/* disallow direct IO if any of devices has unaligned blksize */
-- 
GitLab


From 68980ff96c1a22811f024753f7a1c72d065b4136 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@google.com>
Date: Fri, 28 Jan 2022 15:39:40 -0800
Subject: [PATCH 4610/4878] fscrypt: update documentation for direct I/O
 support

Now that direct I/O is supported on encrypted files in some cases,
document what these cases are.

Link: https://lore.kernel.org/r/20220128233940.79464-6-ebiggers@kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 Documentation/filesystems/fscrypt.rst | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 4d5d50dca65c6..6ccd5efb25b77 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -1047,8 +1047,8 @@ astute users may notice some differences in behavior:
   may be used to overwrite the source files but isn't guaranteed to be
   effective on all filesystems and storage devices.
 
-- Direct I/O is not supported on encrypted files.  Attempts to use
-  direct I/O on such files will fall back to buffered I/O.
+- Direct I/O is supported on encrypted files only under some
+  circumstances.  For details, see `Direct I/O support`_.
 
 - The fallocate operations FALLOC_FL_COLLAPSE_RANGE and
   FALLOC_FL_INSERT_RANGE are not supported on encrypted files and will
@@ -1179,6 +1179,27 @@ Inline encryption doesn't affect the ciphertext or other aspects of
 the on-disk format, so users may freely switch back and forth between
 using "inlinecrypt" and not using "inlinecrypt".
 
+Direct I/O support
+==================
+
+For direct I/O on an encrypted file to work, the following conditions
+must be met (in addition to the conditions for direct I/O on an
+unencrypted file):
+
+* The file must be using inline encryption.  Usually this means that
+  the filesystem must be mounted with ``-o inlinecrypt`` and inline
+  encryption hardware must be present.  However, a software fallback
+  is also available.  For details, see `Inline encryption support`_.
+
+* The I/O request must be fully aligned to the filesystem block size.
+  This means that the file position the I/O is targeting, the lengths
+  of all I/O segments, and the memory addresses of all I/O buffers
+  must be multiples of this value.  Note that the filesystem block
+  size may be greater than the logical block size of the block device.
+
+If either of the above conditions is not met, then direct I/O on the
+encrypted file will fall back to buffered I/O.
+
 Implementation details
 ======================
 
-- 
GitLab


From b6079b142e3d3d5168d9aef84b5662eac3d2729b Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Tue, 8 Mar 2022 17:20:15 -0800
Subject: [PATCH 4611/4878] ANDROID: incremental-fs: limit mount stack depth

Syzbot recently found a number of issues related to incremental-fs
(see bug numbers below). All have to do with the fact that incr-fs
allows mounts of the same source and target multiple times.
This is a design decision and the user space component "Data Loader"
expects this to work for app re-install use case.
The mounting depth needs to be controlled, however, and only allowed
to be two levels deep. In case of more than two mount attempts the
driver needs to return an error.
In case of the issues listed below the common pattern is that the
reproducer calls:

mount("./file0", "./file0", "incremental-fs", 0, NULL)

many times and then invokes a file operation like chmod, setxattr,
or open on the ./file0. This causes a recursive call for all the
mounted instances, which eventually causes a stack overflow and
a kernel crash:

BUG: stack guard page was hit at ffffc90000c0fff8
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN

This change also cleans up the mount error path to properly clean
allocated resources and call deactivate_locked_super(), which
causes the incfs_kill_sb() to be called, where the sb is freed.

Bug: 211066171
Bug: 213140206
Bug: 213215835
Bug: 211914587
Bug: 211213635
Bug: 213137376
Bug: 211161296

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I08d9b545a2715423296bf4beb67bdbbed78d1be1
---
 fs/incfs/data_mgmt.h |  6 ++++
 fs/incfs/vfs.c       | 79 +++++++++++++++++++++++++++++++-------------
 2 files changed, 62 insertions(+), 23 deletions(-)

diff --git a/fs/incfs/data_mgmt.h b/fs/incfs/data_mgmt.h
index 84db0382765db..2227913674a4f 100644
--- a/fs/incfs/data_mgmt.h
+++ b/fs/incfs/data_mgmt.h
@@ -131,8 +131,14 @@ struct mount_info {
 	struct path mi_backing_dir_path;
 
 	struct dentry *mi_index_dir;
+	/* For stacking mounts, if true, this indicates if the index dir needs
+	 * to be freed for this SB otherwise it was created by lower level SB */
+	bool mi_index_free;
 
 	struct dentry *mi_incomplete_dir;
+	/* For stacking mounts, if true, this indicates if the incomplete dir
+	 * needs to be freed for this SB. Similar to mi_index_free */
+	bool mi_incomplete_free;
 
 	const struct cred *mi_owner;
 
diff --git a/fs/incfs/vfs.c b/fs/incfs/vfs.c
index 8d21f6decaee0..e97b843a4da53 100644
--- a/fs/incfs/vfs.c
+++ b/fs/incfs/vfs.c
@@ -437,7 +437,8 @@ static int incfs_init_dentry(struct dentry *dentry, struct path *path)
 }
 
 static struct dentry *open_or_create_special_dir(struct dentry *backing_dir,
-						 const char *name)
+						 const char *name,
+						 bool *created)
 {
 	struct dentry *index_dentry;
 	struct inode *backing_inode = d_inode(backing_dir);
@@ -450,6 +451,7 @@ static struct dentry *open_or_create_special_dir(struct dentry *backing_dir,
 		return index_dentry;
 	} else if (d_really_is_positive(index_dentry)) {
 		/* Index already exists. */
+		*created = false;
 		return index_dentry;
 	}
 
@@ -469,6 +471,7 @@ static struct dentry *open_or_create_special_dir(struct dentry *backing_dir,
 		return ERR_PTR(-EINVAL);
 	}
 
+	*created = true;
 	return index_dentry;
 }
 
@@ -1747,6 +1750,7 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	struct super_block *src_fs_sb = NULL;
 	struct inode *root_inode = NULL;
 	struct super_block *sb = sget(type, NULL, set_anon_super, flags, NULL);
+	bool dir_created = false;
 	int error = 0;
 
 	if (IS_ERR(sb))
@@ -1763,17 +1767,23 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 
 	BUILD_BUG_ON(PAGE_SIZE != INCFS_DATA_FILE_BLOCK_SIZE);
 
+	if (!dev_name) {
+		pr_err("incfs: Backing dir is not set, filesystem can't be mounted.\n");
+		error = -ENOENT;
+		goto err_deactivate;
+	}
+
 	error = parse_options(&options, (char *)data);
 	if (error != 0) {
 		pr_err("incfs: Options parsing error. %d\n", error);
-		goto err;
+		goto err_deactivate;
 	}
 
 	sb->s_bdi->ra_pages = options.readahead_pages;
 	if (!dev_name) {
 		pr_err("incfs: Backing dir is not set, filesystem can't be mounted.\n");
 		error = -ENOENT;
-		goto err;
+		goto err_free_opts;
 	}
 
 	error = kern_path(dev_name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY,
@@ -1782,57 +1792,66 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 		!d_really_is_positive(backing_dir_path.dentry)) {
 		pr_err("incfs: Error accessing: %s.\n",
 			dev_name);
-		goto err;
+		goto err_free_opts;
 	}
 	src_fs_sb = backing_dir_path.dentry->d_sb;
 	sb->s_maxbytes = src_fs_sb->s_maxbytes;
+	sb->s_stack_depth = src_fs_sb->s_stack_depth + 1;
 
-	mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
+	if (sb->s_stack_depth > FILESYSTEM_MAX_STACK_DEPTH) {
+		error = -EINVAL;
+		goto err_put_path;
+	}
 
+	mi = incfs_alloc_mount_info(sb, &options, &backing_dir_path);
 	if (IS_ERR_OR_NULL(mi)) {
 		error = PTR_ERR(mi);
 		pr_err("incfs: Error allocating mount info. %d\n", error);
-		mi = NULL;
-		goto err;
+		goto err_put_path;
 	}
 
+	sb->s_fs_info = mi;
+	mi->mi_backing_dir_path = backing_dir_path;
 	index_dir = open_or_create_special_dir(backing_dir_path.dentry,
-					       INCFS_INDEX_NAME);
+					       INCFS_INDEX_NAME, &dir_created);
 	if (IS_ERR_OR_NULL(index_dir)) {
 		error = PTR_ERR(index_dir);
 		pr_err("incfs: Can't find or create .index dir in %s\n",
 			dev_name);
 		/* No need to null index_dir since we don't put it */
-		goto err;
+		goto err_put_path;
 	}
+
 	mi->mi_index_dir = index_dir;
+	mi->mi_index_free = dir_created;
 
 	incomplete_dir = open_or_create_special_dir(backing_dir_path.dentry,
-						    INCFS_INCOMPLETE_NAME);
+						    INCFS_INCOMPLETE_NAME,
+						    &dir_created);
 	if (IS_ERR_OR_NULL(incomplete_dir)) {
 		error = PTR_ERR(incomplete_dir);
 		pr_err("incfs: Can't find or create .incomplete dir in %s\n",
 			dev_name);
 		/* No need to null incomplete_dir since we don't put it */
-		goto err;
+		goto err_put_path;
 	}
 	mi->mi_incomplete_dir = incomplete_dir;
+	mi->mi_incomplete_free = dir_created;
 
-	sb->s_fs_info = mi;
 	root_inode = fetch_regular_inode(sb, backing_dir_path.dentry);
 	if (IS_ERR(root_inode)) {
 		error = PTR_ERR(root_inode);
-		goto err;
+		goto err_put_path;
 	}
 
 	sb->s_root = d_make_root(root_inode);
 	if (!sb->s_root) {
 		error = -ENOMEM;
-		goto err;
+		goto err_put_path;
 	}
 	error = incfs_init_dentry(sb->s_root, &backing_dir_path);
 	if (error)
-		goto err;
+		goto err_put_path;
 
 	mi->mi_backing_dir_path = backing_dir_path;
 	sb->s_flags |= SB_ACTIVE;
@@ -1840,12 +1859,14 @@ struct dentry *incfs_mount_fs(struct file_system_type *type, int flags,
 	pr_debug("incfs: mount\n");
 	free_options(&options);
 	return dget(sb->s_root);
-err:
-	sb->s_fs_info = NULL;
+
+err_put_path:
 	path_put(&backing_dir_path);
-	incfs_free_mount_info(mi);
-	deactivate_locked_super(sb);
+err_free_opts:
 	free_options(&options);
+err_deactivate:
+	deactivate_locked_super(sb);
+	pr_err("incfs: mount failed %d\n", error);
 	return ERR_PTR(error);
 }
 
@@ -1880,14 +1901,26 @@ out:
 void incfs_kill_sb(struct super_block *sb)
 {
 	struct mount_info *mi = sb->s_fs_info;
-	struct inode *dinode = d_inode(mi->mi_backing_dir_path.dentry);
+	struct inode *dinode = NULL;
 
 	pr_debug("incfs: unmount\n");
-	vfs_rmdir(dinode, mi->mi_index_dir);
-	vfs_rmdir(dinode, mi->mi_incomplete_dir);
 
+	if (mi) {
+		if (mi->mi_backing_dir_path.dentry)
+			dinode = d_inode(mi->mi_backing_dir_path.dentry);
+
+		if (dinode) {
+			if (mi->mi_index_dir && mi->mi_index_free)
+				vfs_rmdir(dinode, mi->mi_index_dir);
+
+			if (mi->mi_incomplete_dir && mi->mi_incomplete_free)
+				vfs_rmdir(dinode, mi->mi_incomplete_dir);
+		}
+
+		incfs_free_mount_info(mi);
+		sb->s_fs_info = NULL;
+	}
 	kill_anon_super(sb);
-	incfs_free_mount_info(mi);
 }
 
 static int show_options(struct seq_file *m, struct dentry *root)
-- 
GitLab


From 9a7faf669a554b4318a57182cc18b0189865ae9d Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Mon, 14 Mar 2022 08:54:02 +0800
Subject: [PATCH 4612/4878] ANDROID: Update the ABI symbol list

Leaf changes summary: 3 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 2 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable

2 Added functions:

  [A] 'function int __traceiter_android_vh_scheduler_tick(void*, rq*)'
  [A] 'function pid* find_pid_ns(int, pid_namespace*)'

1 Added variable:

  [A] 'tracepoint __tracepoint_android_vh_scheduler_tick'

Bug: 223481647
Signed-off-by: Woody Lin <woodylin@google.com>
Change-Id: I456c97aeebbc0ae70dd66a2d63b2aba13b1d4116
---
 android/abi_gki_aarch64.xml     | 263 ++++++++++++++++++--------------
 android/abi_gki_aarch64_generic |   3 +
 2 files changed, 154 insertions(+), 112 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 7b166ac221616..5cade141658c5 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -251,6 +251,7 @@
       <elf-symbol name='__traceiter_android_vh_of_i2c_get_board_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcc0513d'/>
       <elf-symbol name='__traceiter_android_vh_pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e4bbcf'/>
       <elf-symbol name='__traceiter_android_vh_rmqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9aacbdd9'/>
+      <elf-symbol name='__traceiter_android_vh_scheduler_tick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c91de8f'/>
       <elf-symbol name='__traceiter_android_vh_setscheduler_uclamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2670a8ee'/>
       <elf-symbol name='__traceiter_android_vh_sha256' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88fe3e25'/>
       <elf-symbol name='__traceiter_android_vh_snd_compr_use_pause_in_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6ab1ad2'/>
@@ -1507,6 +1508,7 @@
       <elf-symbol name='find_last_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a68816'/>
       <elf-symbol name='find_next_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3d105'/>
       <elf-symbol name='find_next_zero_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479c3c86'/>
+      <elf-symbol name='find_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25687428'/>
       <elf-symbol name='find_task_by_vpid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b706beb'/>
       <elf-symbol name='find_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71bcaf53'/>
       <elf-symbol name='finish_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92540fbf'/>
@@ -3710,6 +3712,7 @@
       <elf-symbol name='__tracepoint_android_vh_of_i2c_get_board_info' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb3bfdc5'/>
       <elf-symbol name='__tracepoint_android_vh_pagecache_get_page' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcb3c40e'/>
       <elf-symbol name='__tracepoint_android_vh_rmqueue' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c074b9'/>
+      <elf-symbol name='__tracepoint_android_vh_scheduler_tick' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3e74b24'/>
       <elf-symbol name='__tracepoint_android_vh_setscheduler_uclamp' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ae79b81'/>
       <elf-symbol name='__tracepoint_android_vh_sha256' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x890676c3'/>
       <elf-symbol name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b89d106'/>
@@ -60211,7 +60214,20 @@
           <var-decl name='private_value' type-id='7359adad' visibility='default' filepath='include/sound/control.h' line='56' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='udp_table' is-struct='yes' visibility='default' is-declaration-only='yes' id='9a516b13'/>
+      <class-decl name='udp_table' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/net/udp.h' line='72' column='1' id='9a516b13'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='hash' type-id='9cc41107' visibility='default' filepath='include/net/udp.h' line='73' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='hash2' type-id='9cc41107' visibility='default' filepath='include/net/udp.h' line='74' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='mask' type-id='f0981eeb' visibility='default' filepath='include/net/udp.h' line='75' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='160'>
+          <var-decl name='log' type-id='f0981eeb' visibility='default' filepath='include/net/udp.h' line='76' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='6661a698' size-in-bits='64' id='9a537bbe'/>
       <function-type size-in-bits='64' id='9a54e634'>
         <parameter type-id='8898134d'/>
@@ -60934,6 +60950,7 @@
       <array-type-def dimensions='1' type-id='00205383' size-in-bits='3072' id='9cc39ce1'>
         <subrange length='24' type-id='7ff19f0f' id='fdd3342b'/>
       </array-type-def>
+      <pointer-type-def type-id='fa07ab8f' size-in-bits='64' id='9cc41107'/>
       <class-decl name='snd_kcontrol_volatile' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/sound/control.h' line='59' column='1' id='9cd807f4'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='owner' type-id='ed27ccc9' visibility='default' filepath='include/sound/control.h' line='60' column='1'/>
@@ -71088,7 +71105,7 @@
       <qualified-type-def type-id='3419b67d' const='yes' id='b121efca'/>
       <pointer-type-def type-id='272672f5' size-in-bits='64' id='b121f651'/>
       <pointer-type-def type-id='0ef5c7e0' size-in-bits='64' id='b1253746'/>
-      <typedef-decl name='vq_callback_t' type-id='efc29a3e' filepath='include/linux/virtio_config.h' line='78' column='1' id='b1376802'/>
+      <typedef-decl name='vq_callback_t' type-id='efc29a3e' filepath='include/linux/virtio_config.h' line='79' column='1' id='b1376802'/>
       <class-decl name='media_entity_operations' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/media/media-entity.h' line='216' column='1' id='b13ab8d6'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='get_fwnode_pad' type-id='28588d1c' visibility='default' filepath='include/media/media-entity.h' line='217' column='1'/>
@@ -86524,51 +86541,51 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='5985c13a' size-in-bits='64' id='d6f1846c'/>
-      <class-decl name='virtio_config_ops' size-in-bits='960' is-struct='yes' visibility='default' filepath='include/linux/virtio_config.h' line='79' column='1' id='d70a473a'>
+      <class-decl name='virtio_config_ops' size-in-bits='960' is-struct='yes' visibility='default' filepath='include/linux/virtio_config.h' line='80' column='1' id='d70a473a'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='enable_cbs' type-id='33d93b18' visibility='default' filepath='include/linux/virtio_config.h' line='80' column='1'/>
+          <var-decl name='enable_cbs' type-id='33d93b18' visibility='default' filepath='include/linux/virtio_config.h' line='81' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='get' type-id='b22e78ee' visibility='default' filepath='include/linux/virtio_config.h' line='81' column='1'/>
+          <var-decl name='get' type-id='b22e78ee' visibility='default' filepath='include/linux/virtio_config.h' line='82' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='set' type-id='b22e78ee' visibility='default' filepath='include/linux/virtio_config.h' line='83' column='1'/>
+          <var-decl name='set' type-id='b22e78ee' visibility='default' filepath='include/linux/virtio_config.h' line='84' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='generation' type-id='fe5a9a49' visibility='default' filepath='include/linux/virtio_config.h' line='85' column='1'/>
+          <var-decl name='generation' type-id='fe5a9a49' visibility='default' filepath='include/linux/virtio_config.h' line='86' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='get_status' type-id='bbefcc2a' visibility='default' filepath='include/linux/virtio_config.h' line='86' column='1'/>
+          <var-decl name='get_status' type-id='bbefcc2a' visibility='default' filepath='include/linux/virtio_config.h' line='87' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
-          <var-decl name='set_status' type-id='3dc18b9c' visibility='default' filepath='include/linux/virtio_config.h' line='87' column='1'/>
+          <var-decl name='set_status' type-id='3dc18b9c' visibility='default' filepath='include/linux/virtio_config.h' line='88' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='384'>
-          <var-decl name='reset' type-id='33d93b18' visibility='default' filepath='include/linux/virtio_config.h' line='88' column='1'/>
+          <var-decl name='reset' type-id='33d93b18' visibility='default' filepath='include/linux/virtio_config.h' line='89' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='448'>
-          <var-decl name='find_vqs' type-id='17035a6b' visibility='default' filepath='include/linux/virtio_config.h' line='89' column='1'/>
+          <var-decl name='find_vqs' type-id='17035a6b' visibility='default' filepath='include/linux/virtio_config.h' line='90' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='512'>
-          <var-decl name='del_vqs' type-id='33d93b18' visibility='default' filepath='include/linux/virtio_config.h' line='93' column='1'/>
+          <var-decl name='del_vqs' type-id='33d93b18' visibility='default' filepath='include/linux/virtio_config.h' line='94' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='576'>
-          <var-decl name='get_features' type-id='f428336a' visibility='default' filepath='include/linux/virtio_config.h' line='94' column='1'/>
+          <var-decl name='get_features' type-id='f428336a' visibility='default' filepath='include/linux/virtio_config.h' line='95' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='640'>
-          <var-decl name='finalize_features' type-id='b89d0409' visibility='default' filepath='include/linux/virtio_config.h' line='95' column='1'/>
+          <var-decl name='finalize_features' type-id='b89d0409' visibility='default' filepath='include/linux/virtio_config.h' line='96' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='704'>
-          <var-decl name='bus_name' type-id='eb8aa2f1' visibility='default' filepath='include/linux/virtio_config.h' line='96' column='1'/>
+          <var-decl name='bus_name' type-id='eb8aa2f1' visibility='default' filepath='include/linux/virtio_config.h' line='97' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='768'>
-          <var-decl name='set_vq_affinity' type-id='53a5ad54' visibility='default' filepath='include/linux/virtio_config.h' line='97' column='1'/>
+          <var-decl name='set_vq_affinity' type-id='53a5ad54' visibility='default' filepath='include/linux/virtio_config.h' line='98' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='832'>
-          <var-decl name='get_vq_affinity' type-id='7642cce6' visibility='default' filepath='include/linux/virtio_config.h' line='99' column='1'/>
+          <var-decl name='get_vq_affinity' type-id='7642cce6' visibility='default' filepath='include/linux/virtio_config.h' line='100' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='896'>
-          <var-decl name='get_shm_region' type-id='ab7c4594' visibility='default' filepath='include/linux/virtio_config.h' line='101' column='1'/>
+          <var-decl name='get_shm_region' type-id='ab7c4594' visibility='default' filepath='include/linux/virtio_config.h' line='102' column='1'/>
         </data-member>
       </class-decl>
       <function-type size-in-bits='64' id='d71978c5'>
@@ -102469,45 +102486,45 @@
           <var-decl name='cpus' type-id='c99b5ecd' visibility='default' filepath='include/linux/energy_model.h' line='49' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='virtio_driver' size-in-bits='2176' is-struct='yes' visibility='default' filepath='include/linux/virtio.h' line='166' column='1' id='f8d99df1'>
+      <class-decl name='virtio_driver' size-in-bits='2176' is-struct='yes' visibility='default' filepath='include/linux/virtio.h' line='165' column='1' id='f8d99df1'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='driver' type-id='fe007c02' visibility='default' filepath='include/linux/virtio.h' line='167' column='1'/>
+          <var-decl name='driver' type-id='fe007c02' visibility='default' filepath='include/linux/virtio.h' line='166' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1408'>
-          <var-decl name='id_table' type-id='3049673c' visibility='default' filepath='include/linux/virtio.h' line='168' column='1'/>
+          <var-decl name='id_table' type-id='3049673c' visibility='default' filepath='include/linux/virtio.h' line='167' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1472'>
-          <var-decl name='feature_table' type-id='5b2fd8e8' visibility='default' filepath='include/linux/virtio.h' line='169' column='1'/>
+          <var-decl name='feature_table' type-id='5b2fd8e8' visibility='default' filepath='include/linux/virtio.h' line='168' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1536'>
-          <var-decl name='feature_table_size' type-id='f0981eeb' visibility='default' filepath='include/linux/virtio.h' line='170' column='1'/>
+          <var-decl name='feature_table_size' type-id='f0981eeb' visibility='default' filepath='include/linux/virtio.h' line='169' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1600'>
-          <var-decl name='feature_table_legacy' type-id='5b2fd8e8' visibility='default' filepath='include/linux/virtio.h' line='171' column='1'/>
+          <var-decl name='feature_table_legacy' type-id='5b2fd8e8' visibility='default' filepath='include/linux/virtio.h' line='170' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1664'>
-          <var-decl name='feature_table_size_legacy' type-id='f0981eeb' visibility='default' filepath='include/linux/virtio.h' line='172' column='1'/>
+          <var-decl name='feature_table_size_legacy' type-id='f0981eeb' visibility='default' filepath='include/linux/virtio.h' line='171' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1728'>
-          <var-decl name='validate' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='173' column='1'/>
+          <var-decl name='validate' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='172' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1792'>
-          <var-decl name='probe' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='174' column='1'/>
+          <var-decl name='probe' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='173' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1856'>
-          <var-decl name='scan' type-id='33d93b18' visibility='default' filepath='include/linux/virtio.h' line='175' column='1'/>
+          <var-decl name='scan' type-id='33d93b18' visibility='default' filepath='include/linux/virtio.h' line='174' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1920'>
-          <var-decl name='remove' type-id='33d93b18' visibility='default' filepath='include/linux/virtio.h' line='176' column='1'/>
+          <var-decl name='remove' type-id='33d93b18' visibility='default' filepath='include/linux/virtio.h' line='175' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1984'>
-          <var-decl name='config_changed' type-id='33d93b18' visibility='default' filepath='include/linux/virtio.h' line='177' column='1'/>
+          <var-decl name='config_changed' type-id='33d93b18' visibility='default' filepath='include/linux/virtio.h' line='176' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='2048'>
-          <var-decl name='freeze' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='179' column='1'/>
+          <var-decl name='freeze' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='178' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='2112'>
-          <var-decl name='restore' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='180' column='1'/>
+          <var-decl name='restore' type-id='b89d0409' visibility='default' filepath='include/linux/virtio.h' line='179' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='f3415517' size-in-bits='64' id='f8dc9def'/>
@@ -102789,6 +102806,17 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='91f77fa3' size-in-bits='64' id='fa058983'/>
+      <class-decl name='udp_hslot' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/net/udp.h' line='58' column='1' id='fa07ab8f'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/udp.h' line='59' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='count' type-id='95e97e5e' visibility='default' filepath='include/net/udp.h' line='60' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='96'>
+          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/net/udp.h' line='61' column='1'/>
+        </data-member>
+      </class-decl>
       <array-type-def dimensions='2' type-id='8f048e17' size-in-bits='304' id='fa0a1f4c'>
         <subrange length='2' type-id='7ff19f0f' id='52efc4ef'/>
         <subrange length='19' type-id='7ff19f0f' id='448ee30f'/>
@@ -106629,6 +106657,11 @@
         <parameter type-id='95e97e5e' name='migratetype' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_vh_scheduler_tick' mangled-name='__traceiter_android_vh_scheduler_tick' filepath='include/trace/hooks/sched.h' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_scheduler_tick'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='31' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='31' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_vh_setscheduler_uclamp' mangled-name='__traceiter_android_vh_setscheduler_uclamp' filepath='include/trace/hooks/sched.h' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_setscheduler_uclamp'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
         <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
@@ -106978,6 +107011,7 @@
       <var-decl name='__tracepoint_android_vh_of_i2c_get_board_info' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_of_i2c_get_board_info' visibility='default' filepath='include/trace/hooks/i2c.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_of_i2c_get_board_info'/>
       <var-decl name='__tracepoint_android_vh_pagecache_get_page' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pagecache_get_page' visibility='default' filepath='include/trace/hooks/mm.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_pagecache_get_page'/>
       <var-decl name='__tracepoint_android_vh_rmqueue' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_rmqueue' visibility='default' filepath='include/trace/hooks/mm.h' line='35' column='1' elf-symbol-id='__tracepoint_android_vh_rmqueue'/>
+      <var-decl name='__tracepoint_android_vh_scheduler_tick' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_scheduler_tick' visibility='default' filepath='include/trace/hooks/sched.h' line='31' column='1' elf-symbol-id='__tracepoint_android_vh_scheduler_tick'/>
       <var-decl name='__tracepoint_android_vh_setscheduler_uclamp' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_setscheduler_uclamp' visibility='default' filepath='include/trace/hooks/sched.h' line='404' column='1' elf-symbol-id='__tracepoint_android_vh_setscheduler_uclamp'/>
       <var-decl name='__tracepoint_android_vh_sha256' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sha256' visibility='default' filepath='include/trace/hooks/fips140.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_sha256'/>
       <var-decl name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' visibility='default' filepath='include/trace/hooks/snd_compr.h' line='18' column='1' elf-symbol-id='__tracepoint_android_vh_snd_compr_use_pause_in_drain'/>
@@ -107477,8 +107511,8 @@
         <parameter type-id='7292109c' name='argcp' filepath='lib/argv_split.c' line='60' column='1'/>
         <return type-id='9b23c9ad'/>
       </function-decl>
-      <var-decl name='arm64_const_caps_ready' type-id='237c0d27' mangled-name='arm64_const_caps_ready' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='137' column='1' elf-symbol-id='arm64_const_caps_ready'/>
-      <var-decl name='arm64_use_ng_mappings' type-id='b50a4934' mangled-name='arm64_use_ng_mappings' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='107' column='1' elf-symbol-id='arm64_use_ng_mappings'/>
+      <var-decl name='arm64_const_caps_ready' type-id='237c0d27' mangled-name='arm64_const_caps_ready' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='142' column='1' elf-symbol-id='arm64_const_caps_ready'/>
+      <var-decl name='arm64_use_ng_mappings' type-id='b50a4934' mangled-name='arm64_use_ng_mappings' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='110' column='1' elf-symbol-id='arm64_use_ng_mappings'/>
       <function-decl name='async_schedule_node' mangled-name='async_schedule_node' filepath='kernel/async.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='async_schedule_node'>
         <parameter type-id='5c19cb0c' name='func' filepath='kernel/async.c' line='228' column='1'/>
         <parameter type-id='eaa32e2f' name='data' filepath='kernel/async.c' line='228' column='1'/>
@@ -108508,10 +108542,10 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1144' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17750' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17750' column='1'/>
-        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17751' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17752' column='1'/>
+      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17751' column='1'/>
+        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17752' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17753' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='cfg80211_find_elem_match' mangled-name='cfg80211_find_elem_match' filepath='net/wireless/scan.c' line='1216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_elem_match'>
@@ -108681,12 +108715,12 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/core.c' line='1233' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17532' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17532' column='1'/>
-        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17532' column='1'/>
-        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17533' column='1'/>
-        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
+      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17533' column='1'/>
+        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17533' column='1'/>
+        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
+        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17535' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17535' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_unlink_bss' mangled-name='cfg80211_unlink_bss' filepath='net/wireless/scan.c' line='2507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_unlink_bss'>
@@ -108698,10 +108732,10 @@
         <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/core.c' line='1141' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
-        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17791' column='1'/>
-        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17792' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17793' column='1'/>
+      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
+        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17792' column='1'/>
+        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17793' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17794' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='13828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
@@ -109091,12 +109125,12 @@
       <var-decl name='contig_page_data' type-id='54406315' mangled-name='contig_page_data' visibility='default' filepath='mm/memblock.c' line='96' column='1' elf-symbol-id='contig_page_data'/>
       <var-decl name='cpu_all_bits' type-id='afe549fd' mangled-name='cpu_all_bits' visibility='default' filepath='kernel/cpu.c' line='2755' column='1' elf-symbol-id='cpu_all_bits'/>
       <var-decl name='cpu_bit_bitmap' type-id='f959706c' mangled-name='cpu_bit_bitmap' visibility='default' filepath='kernel/cpu.c' line='2744' column='1' elf-symbol-id='cpu_bit_bitmap'/>
-      <function-decl name='cpu_have_feature' mangled-name='cpu_have_feature' filepath='arch/arm64/kernel/cpufeature.c' line='2853' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_have_feature'>
-        <parameter type-id='f0981eeb' name='num' filepath='arch/arm64/kernel/cpufeature.c' line='2853' column='1'/>
+      <function-decl name='cpu_have_feature' mangled-name='cpu_have_feature' filepath='arch/arm64/kernel/cpufeature.c' line='2879' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_have_feature'>
+        <parameter type-id='f0981eeb' name='num' filepath='arch/arm64/kernel/cpufeature.c' line='2879' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <var-decl name='cpu_hwcap_keys' type-id='cee5a038' mangled-name='cpu_hwcap_keys' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='150' column='1' elf-symbol-id='cpu_hwcap_keys'/>
-      <var-decl name='cpu_hwcaps' type-id='f05e8e77' mangled-name='cpu_hwcaps' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='100' column='1' elf-symbol-id='cpu_hwcaps'/>
+      <var-decl name='cpu_hwcap_keys' type-id='cee5a038' mangled-name='cpu_hwcap_keys' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='155' column='1' elf-symbol-id='cpu_hwcap_keys'/>
+      <var-decl name='cpu_hwcaps' type-id='f05e8e77' mangled-name='cpu_hwcaps' visibility='default' filepath='arch/arm64/kernel/cpufeature.c' line='103' column='1' elf-symbol-id='cpu_hwcaps'/>
       <function-decl name='cpu_latency_qos_add_request' mangled-name='cpu_latency_qos_add_request' filepath='kernel/power/qos.c' line='267' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cpu_latency_qos_add_request'>
         <parameter type-id='221c3010' name='req' filepath='kernel/power/qos.c' line='267' column='1'/>
         <parameter type-id='a7832498' name='value' filepath='kernel/power/qos.c' line='267' column='1'/>
@@ -112091,9 +112125,9 @@
         <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='502' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='drm_connector_set_panel_orientation' mangled-name='drm_connector_set_panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_set_panel_orientation'>
-        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='2183' column='1'/>
-        <parameter type-id='59f3d325' name='panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2184' column='1'/>
+      <function-decl name='drm_connector_set_panel_orientation' mangled-name='drm_connector_set_panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_set_panel_orientation'>
+        <parameter type-id='4db02c58' name='connector' filepath='drivers/gpu/drm/drm_connector.c' line='2186' column='1'/>
+        <parameter type-id='59f3d325' name='panel_orientation' filepath='drivers/gpu/drm/drm_connector.c' line='2187' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='drm_connector_unregister' mangled-name='drm_connector_unregister' filepath='drivers/gpu/drm/drm_connector.c' line='552' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='drm_connector_unregister'>
@@ -113497,6 +113531,11 @@
         <parameter type-id='7359adad' name='offset' filepath='lib/find_bit.c' line='86' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
+      <function-decl name='find_pid_ns' mangled-name='find_pid_ns' filepath='kernel/pid.c' line='309' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_pid_ns'>
+        <parameter type-id='95e97e5e' name='nr' filepath='kernel/pid.c' line='309' column='1'/>
+        <parameter type-id='b816e1d0' name='ns' filepath='kernel/pid.c' line='309' column='1'/>
+        <return type-id='b94e5398'/>
+      </function-decl>
       <function-decl name='find_task_by_vpid' mangled-name='find_task_by_vpid' filepath='kernel/pid.c' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='find_task_by_vpid'>
         <parameter type-id='587f89d2' name='vnr' filepath='kernel/pid.c' line='420' column='1'/>
         <return type-id='f23e2572'/>
@@ -113627,12 +113666,12 @@
         <parameter type-id='7837cd88' name='fwnode' filepath='drivers/base/property.c' line='565' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='fwnode_gpiod_get_index' mangled-name='fwnode_gpiod_get_index' filepath='drivers/gpio/gpiolib.c' line='3783' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_gpiod_get_index'>
-        <parameter type-id='4a935625' name='fwnode' filepath='drivers/gpio/gpiolib.c' line='3783' column='1'/>
-        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3784' column='1'/>
-        <parameter type-id='95e97e5e' name='index' filepath='drivers/gpio/gpiolib.c' line='3784' column='1'/>
-        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib.c' line='3785' column='1'/>
-        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib.c' line='3786' column='1'/>
+      <function-decl name='fwnode_gpiod_get_index' mangled-name='fwnode_gpiod_get_index' filepath='drivers/gpio/gpiolib.c' line='3793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_gpiod_get_index'>
+        <parameter type-id='4a935625' name='fwnode' filepath='drivers/gpio/gpiolib.c' line='3793' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3794' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='drivers/gpio/gpiolib.c' line='3794' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib.c' line='3795' column='1'/>
+        <parameter type-id='80f4b756' name='label' filepath='drivers/gpio/gpiolib.c' line='3796' column='1'/>
         <return type-id='26760480'/>
       </function-decl>
       <function-decl name='fwnode_handle_get' mangled-name='fwnode_handle_get' filepath='drivers/base/property.c' line='814' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fwnode_handle_get'>
@@ -114011,9 +114050,9 @@
         <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='463' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='gpiochip_lock_as_irq' mangled-name='gpiochip_lock_as_irq' filepath='drivers/gpio/gpiolib.c' line='3231' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_lock_as_irq'>
-        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='3231' column='1'/>
-        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='3231' column='1'/>
+      <function-decl name='gpiochip_lock_as_irq' mangled-name='gpiochip_lock_as_irq' filepath='drivers/gpio/gpiolib.c' line='3241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_lock_as_irq'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='3241' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='3241' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='gpiochip_populate_parent_fwspec_fourcell' mangled-name='gpiochip_populate_parent_fwspec_fourcell' filepath='drivers/gpio/gpiolib.c' line='1266' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_populate_parent_fwspec_fourcell'>
@@ -114026,18 +114065,18 @@
         <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='815' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gpiochip_unlock_as_irq' mangled-name='gpiochip_unlock_as_irq' filepath='drivers/gpio/gpiolib.c' line='3285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_unlock_as_irq'>
-        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='3285' column='1'/>
-        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='3285' column='1'/>
+      <function-decl name='gpiochip_unlock_as_irq' mangled-name='gpiochip_unlock_as_irq' filepath='drivers/gpio/gpiolib.c' line='3295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiochip_unlock_as_irq'>
+        <parameter type-id='e324928d' name='gc' filepath='drivers/gpio/gpiolib.c' line='3295' column='1'/>
+        <parameter type-id='f0981eeb' name='offset' filepath='drivers/gpio/gpiolib.c' line='3295' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='gpiod_cansleep' mangled-name='gpiod_cansleep' filepath='drivers/gpio/gpiolib.c' line='3160' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_cansleep'>
         <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3160' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpiod_count' mangled-name='gpiod_count' filepath='drivers/gpio/gpiolib.c' line='3816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_count'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib.c' line='3816' column='1'/>
-        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3816' column='1'/>
+      <function-decl name='gpiod_count' mangled-name='gpiod_count' filepath='drivers/gpio/gpiolib.c' line='3826' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_count'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib.c' line='3826' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3826' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='gpiod_direction_input' mangled-name='gpiod_direction_input' filepath='drivers/gpio/gpiolib.c' line='2318' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_direction_input'>
@@ -114054,30 +114093,30 @@
         <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='2418' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpiod_get_optional' mangled-name='gpiod_get_optional' filepath='drivers/gpio/gpiolib.c' line='3859' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_optional'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib.c' line='3859' column='1'/>
-        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3860' column='1'/>
-        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib.c' line='3861' column='1'/>
+      <function-decl name='gpiod_get_optional' mangled-name='gpiod_get_optional' filepath='drivers/gpio/gpiolib.c' line='3869' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_optional'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/gpio/gpiolib.c' line='3869' column='1'/>
+        <parameter type-id='80f4b756' name='con_id' filepath='drivers/gpio/gpiolib.c' line='3870' column='1'/>
+        <parameter type-id='38d4936d' name='flags' filepath='drivers/gpio/gpiolib.c' line='3871' column='1'/>
         <return type-id='26760480'/>
       </function-decl>
       <function-decl name='gpiod_get_raw_value' mangled-name='gpiod_get_raw_value' filepath='drivers/gpio/gpiolib.c' line='2769' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_raw_value'>
         <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='2769' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpiod_get_raw_value_cansleep' mangled-name='gpiod_get_raw_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3398' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_raw_value_cansleep'>
-        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3398' column='1'/>
+      <function-decl name='gpiod_get_raw_value_cansleep' mangled-name='gpiod_get_raw_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_raw_value_cansleep'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3408' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='gpiod_get_value' mangled-name='gpiod_get_value' filepath='drivers/gpio/gpiolib.c' line='2788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_value'>
         <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='2788' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpiod_get_value_cansleep' mangled-name='gpiod_get_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_value_cansleep'>
-        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3415' column='1'/>
+      <function-decl name='gpiod_get_value_cansleep' mangled-name='gpiod_get_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3425' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_get_value_cansleep'>
+        <parameter type-id='5bed570d' name='desc' filepath='drivers/gpio/gpiolib.c' line='3425' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='gpiod_put' mangled-name='gpiod_put' filepath='drivers/gpio/gpiolib.c' line='4331' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_put'>
-        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='4331' column='1'/>
+      <function-decl name='gpiod_put' mangled-name='gpiod_put' filepath='drivers/gpio/gpiolib.c' line='4341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_put'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='4341' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='gpiod_set_consumer_name' mangled-name='gpiod_set_consumer_name' filepath='drivers/gpio/gpiolib.c' line='3172' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_consumer_name'>
@@ -114095,9 +114134,9 @@
         <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3054' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gpiod_set_raw_value_cansleep' mangled-name='gpiod_set_raw_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3495' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_raw_value_cansleep'>
-        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3495' column='1'/>
-        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3495' column='1'/>
+      <function-decl name='gpiod_set_raw_value_cansleep' mangled-name='gpiod_set_raw_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3505' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_raw_value_cansleep'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3505' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3505' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='gpiod_set_value' mangled-name='gpiod_set_value' filepath='drivers/gpio/gpiolib.c' line='3095' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_value'>
@@ -114105,9 +114144,9 @@
         <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3095' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='gpiod_set_value_cansleep' mangled-name='gpiod_set_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3513' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_value_cansleep'>
-        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3513' column='1'/>
-        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3513' column='1'/>
+      <function-decl name='gpiod_set_value_cansleep' mangled-name='gpiod_set_value_cansleep' filepath='drivers/gpio/gpiolib.c' line='3523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_set_value_cansleep'>
+        <parameter type-id='26760480' name='desc' filepath='drivers/gpio/gpiolib.c' line='3523' column='1'/>
+        <parameter type-id='95e97e5e' name='value' filepath='drivers/gpio/gpiolib.c' line='3523' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='gpiod_to_irq' mangled-name='gpiod_to_irq' filepath='drivers/gpio/gpiolib.c' line='3195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gpiod_to_irq'>
@@ -114922,10 +114961,10 @@
         <parameter type-id='bbaf3419' name='addr' filepath='net/mac80211/agg-rx.c' line='126' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ieee80211_stop_tx_ba_cb_irqsafe' mangled-name='ieee80211_stop_tx_ba_cb_irqsafe' filepath='net/mac80211/agg-tx.c' line='924' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_stop_tx_ba_cb_irqsafe'>
-        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/agg-tx.c' line='924' column='1'/>
-        <parameter type-id='bbaf3419' name='ra' filepath='net/mac80211/agg-tx.c' line='925' column='1'/>
-        <parameter type-id='1dc6a898' name='tid' filepath='net/mac80211/agg-tx.c' line='925' column='1'/>
+      <function-decl name='ieee80211_stop_tx_ba_cb_irqsafe' mangled-name='ieee80211_stop_tx_ba_cb_irqsafe' filepath='net/mac80211/agg-tx.c' line='932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_stop_tx_ba_cb_irqsafe'>
+        <parameter type-id='3a1577c5' name='vif' filepath='net/mac80211/agg-tx.c' line='932' column='1'/>
+        <parameter type-id='bbaf3419' name='ra' filepath='net/mac80211/agg-tx.c' line='933' column='1'/>
+        <parameter type-id='1dc6a898' name='tid' filepath='net/mac80211/agg-tx.c' line='933' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='ieee80211_tdls_oper_request' mangled-name='ieee80211_tdls_oper_request' filepath='net/mac80211/tdls.c' line='1441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_tdls_oper_request'>
@@ -118710,28 +118749,28 @@
         <parameter type-id='eaa32e2f' name='data' filepath='fs/proc/generic.c' line='651' column='1'/>
         <return type-id='d077e928'/>
       </function-decl>
-      <function-decl name='proc_dointvec' mangled-name='proc_dointvec' filepath='kernel/sysctl.c' line='825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dointvec'>
-        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='825' column='1'/>
-        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='825' column='1'/>
-        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='825' column='1'/>
-        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='826' column='1'/>
-        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='826' column='1'/>
+      <function-decl name='proc_dointvec' mangled-name='proc_dointvec' filepath='kernel/sysctl.c' line='832' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dointvec'>
+        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='832' column='1'/>
+        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='832' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='832' column='1'/>
+        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='833' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='833' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='proc_dostring' mangled-name='proc_dostring' filepath='kernel/sysctl.c' line='382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dostring'>
-        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='382' column='1'/>
-        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='382' column='1'/>
-        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='383' column='1'/>
-        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='383' column='1'/>
-        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='383' column='1'/>
+      <function-decl name='proc_dostring' mangled-name='proc_dostring' filepath='kernel/sysctl.c' line='389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_dostring'>
+        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='389' column='1'/>
+        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='389' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='390' column='1'/>
+        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='390' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='390' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='proc_douintvec_minmax' mangled-name='proc_douintvec_minmax' filepath='kernel/sysctl.c' line='1051' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_douintvec_minmax'>
-        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='1051' column='1'/>
-        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='1051' column='1'/>
-        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='1052' column='1'/>
-        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='1052' column='1'/>
-        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='1052' column='1'/>
+      <function-decl name='proc_douintvec_minmax' mangled-name='proc_douintvec_minmax' filepath='kernel/sysctl.c' line='1058' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_douintvec_minmax'>
+        <parameter type-id='631dc3c1' name='table' filepath='kernel/sysctl.c' line='1058' column='1'/>
+        <parameter type-id='95e97e5e' name='write' filepath='kernel/sysctl.c' line='1058' column='1'/>
+        <parameter type-id='eaa32e2f' name='buffer' filepath='kernel/sysctl.c' line='1059' column='1'/>
+        <parameter type-id='78c01427' name='lenp' filepath='kernel/sysctl.c' line='1059' column='1'/>
+        <parameter type-id='b53e8dbb' name='ppos' filepath='kernel/sysctl.c' line='1059' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='proc_mkdir' mangled-name='proc_mkdir' filepath='fs/proc/generic.c' line='520' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='proc_mkdir'>
@@ -122273,8 +122312,8 @@
       <function-decl name='touch_softlockup_watchdog' mangled-name='touch_softlockup_watchdog' filepath='kernel/watchdog.c' line='262' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='touch_softlockup_watchdog'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='trace_event_buffer_commit' mangled-name='trace_event_buffer_commit' filepath='kernel/trace/trace.c' line='2857' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_commit'>
-        <parameter type-id='9f548f9a' name='fbuffer' filepath='kernel/trace/trace.c' line='2857' column='1'/>
+      <function-decl name='trace_event_buffer_commit' mangled-name='trace_event_buffer_commit' filepath='kernel/trace/trace.c' line='2859' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_commit'>
+        <parameter type-id='9f548f9a' name='fbuffer' filepath='kernel/trace/trace.c' line='2859' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='trace_event_buffer_reserve' mangled-name='trace_event_buffer_reserve' filepath='kernel/trace/trace_events.c' line='251' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_event_buffer_reserve'>
@@ -122297,8 +122336,8 @@
         <parameter type-id='eaa32e2f' name='data' filepath='kernel/trace/trace_events.c' line='287' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='trace_handle_return' mangled-name='trace_handle_return' filepath='kernel/trace/trace.c' line='2593' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_handle_return'>
-        <parameter type-id='fc932690' name='s' filepath='kernel/trace/trace.c' line='2593' column='1'/>
+      <function-decl name='trace_handle_return' mangled-name='trace_handle_return' filepath='kernel/trace/trace.c' line='2595' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_handle_return'>
+        <parameter type-id='fc932690' name='s' filepath='kernel/trace/trace.c' line='2595' column='1'/>
         <return type-id='b1a0a119'/>
       </function-decl>
       <function-decl name='trace_output_call' mangled-name='trace_output_call' filepath='kernel/trace/trace_output.c' line='326' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='trace_output_call'>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 14968c013c61a..8b49fe757caf2 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -840,6 +840,7 @@
   find_last_bit
   find_next_bit
   find_next_zero_bit
+  find_pid_ns
   find_task_by_vpid
   find_vma
   finish_wait
@@ -2172,6 +2173,7 @@
   __traceiter_android_vh_of_i2c_get_board_info
   __traceiter_android_vh_pagecache_get_page
   __traceiter_android_vh_rmqueue
+  __traceiter_android_vh_scheduler_tick
   __traceiter_android_vh_setscheduler_uclamp
   __traceiter_android_vh_snd_compr_use_pause_in_drain
   __traceiter_android_vh_sound_usb_support_cpu_suspend
@@ -2262,6 +2264,7 @@
   __tracepoint_android_vh_of_i2c_get_board_info
   __tracepoint_android_vh_pagecache_get_page
   __tracepoint_android_vh_rmqueue
+  __tracepoint_android_vh_scheduler_tick
   __tracepoint_android_vh_setscheduler_uclamp
   __tracepoint_android_vh_snd_compr_use_pause_in_drain
   __tracepoint_android_vh_sound_usb_support_cpu_suspend
-- 
GitLab


From 5fdeabb1a2098ff364f55b4f8f15eb2f75ba2e26 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Wed, 9 Mar 2022 15:33:45 -0800
Subject: [PATCH 4613/4878] ANDROID: selftests: incfs: skip large_file_test
 test is not enough free space

Make the large_file_test check if there is at least 3GB of free disk
space and skip the test if there is not. This is to make the tests pass
on a VM with limited disk size, now all functional tests are passing.

TAP version 13
1..26
ok 1 basic_file_ops_test
ok 2 cant_touch_index_test
ok 3 dynamic_files_and_data_test
ok 4 concurrent_reads_and_writes_test
ok 5 attribute_test
ok 6 work_after_remount_test
ok 7 child_procs_waiting_for_data_test
ok 8 multiple_providers_test
ok 9 hash_tree_test
ok 10 read_log_test
ok 11 get_blocks_test
ok 12 get_hash_blocks_test
ok 13 large_file_test
ok 14 mapped_file_test
ok 15 compatibility_test
ok 16 data_block_count_test
ok 17 hash_block_count_test
ok 18 per_uid_read_timeouts_test
ok 19 inotify_test
ok 20 verity_test
ok 21 enable_verity_test
ok 22 mmap_test
ok 23 truncate_test
ok 24 stat_test
ok 25 sysfs_test
Error mounting fs.: File exists
Error mounting fs.: File exists
ok 26 sysfs_rename_test

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I2260e2b314429251070d0163c70173f237f86476
---
 .../selftests/filesystems/incfs/incfs_test.c  | 33 +++++++++++++++++--
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/filesystems/incfs/incfs_test.c b/tools/testing/selftests/filesystems/incfs/incfs_test.c
index e3ba304f39cad..b3773bd1df91f 100644
--- a/tools/testing/selftests/filesystems/incfs/incfs_test.c
+++ b/tools/testing/selftests/filesystems/incfs/incfs_test.c
@@ -26,6 +26,7 @@
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/xattr.h>
+#include <sys/statvfs.h>
 
 #include <linux/random.h>
 #include <linux/stat.h>
@@ -43,6 +44,7 @@
 #define	FS_IOC_GETFLAGS			_IOR('f', 1, long)
 #define FS_VERITY_FL			0x00100000 /* Verity protected inode */
 
+#define TEST_SKIP 2
 #define TEST_FAILURE 1
 #define TEST_SUCCESS 0
 
@@ -2793,14 +2795,16 @@ failure:
 	return TEST_FAILURE;
 }
 
+#define THREE_GB (3LL * 1024 * 1024 * 1024)
+#define FOUR_GB (4LL * 1024 * 1024 * 1024) /* Have 1GB of margin */
 static int large_file_test(const char *mount_dir)
 {
 	char *backing_dir;
 	int cmd_fd = -1;
 	int i;
-	int result = TEST_FAILURE;
+	int result = TEST_FAILURE, ret;
 	uint8_t data[INCFS_DATA_FILE_BLOCK_SIZE] = {};
-	int block_count = 3LL * 1024 * 1024 * 1024 / INCFS_DATA_FILE_BLOCK_SIZE;
+	int block_count = THREE_GB / INCFS_DATA_FILE_BLOCK_SIZE;
 	struct incfs_fill_block *block_buf =
 		calloc(block_count, sizeof(struct incfs_fill_block));
 	struct incfs_fill_blocks fill_blocks = {
@@ -2809,6 +2813,22 @@ static int large_file_test(const char *mount_dir)
 	};
 	incfs_uuid_t id;
 	int fd = -1;
+	struct statvfs svfs;
+	unsigned long long free_disksz;
+
+	ret = statvfs(mount_dir, &svfs);
+	if (ret) {
+		ksft_print_msg("Can't get disk size. Skipping %s...\n", __func__);
+		return TEST_SKIP;
+	}
+
+	free_disksz = (unsigned long long)svfs.f_bavail * svfs.f_bsize;
+
+	if (FOUR_GB > free_disksz) {
+		ksft_print_msg("Not enough free disk space (%lldMB). Skipping %s...\n",
+				free_disksz >> 20, __func__);
+		return TEST_SKIP;
+	}
 
 	backing_dir = create_backing_dir(mount_dir);
 	if (!backing_dir)
@@ -2849,6 +2869,7 @@ static int large_file_test(const char *mount_dir)
 failure:
 	close(fd);
 	close(cmd_fd);
+	unlink("very_large_file");
 	umount(mount_dir);
 	free(backing_dir);
 	return result;
@@ -4688,9 +4709,15 @@ struct test_case {
 
 void run_one_test(const char *mount_dir, struct test_case *test_case)
 {
+	int ret;
+
 	ksft_print_msg("Running %s\n", test_case->name);
-	if (test_case->pfunc(mount_dir) == TEST_SUCCESS)
+	ret = test_case->pfunc(mount_dir);
+
+	if (ret == TEST_SUCCESS)
 		ksft_test_result_pass("%s\n", test_case->name);
+	else if (ret == TEST_SKIP)
+		ksft_test_result_skip("%s\n", test_case->name);
 	else
 		ksft_test_result_fail("%s\n", test_case->name);
 }
-- 
GitLab


From 0375b0d2979048a480270fa0b224a814ce20c6c7 Mon Sep 17 00:00:00 2001
From: Tadeusz Struk <tadeusz.struk@linaro.org>
Date: Thu, 10 Mar 2022 08:51:45 -0800
Subject: [PATCH 4614/4878] ANDROID: selftests: incfs: Add umount helper
 function

Bug: 211066171

Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Change-Id: I3c8eebbce3079292fc85dad8984efe6382f22cac
---
 tools/testing/selftests/filesystems/incfs/utils.c | 10 ++++++++++
 tools/testing/selftests/filesystems/incfs/utils.h |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/tools/testing/selftests/filesystems/incfs/utils.c b/tools/testing/selftests/filesystems/incfs/utils.c
index 0411d912ae053..d7deb5321c3e2 100644
--- a/tools/testing/selftests/filesystems/incfs/utils.c
+++ b/tools/testing/selftests/filesystems/incfs/utils.c
@@ -81,6 +81,16 @@ int mount_fs(const char *mount_dir, const char *backing_dir,
 	return result;
 }
 
+int umount_fs(const char *mount_dir)
+{
+	int result;
+
+	result = umount(mount_dir);
+	if (result != 0)
+		perror("Error unmounting fs.");
+	return result;
+}
+
 int mount_fs_opt(const char *mount_dir, const char *backing_dir,
 		 const char *opt, bool remount)
 {
diff --git a/tools/testing/selftests/filesystems/incfs/utils.h b/tools/testing/selftests/filesystems/incfs/utils.h
index f5ed8dc5f0ff2..17a1ac5eef7d8 100644
--- a/tools/testing/selftests/filesystems/incfs/utils.h
+++ b/tools/testing/selftests/filesystems/incfs/utils.h
@@ -29,6 +29,8 @@ int drop_caches(void);
 int mount_fs(const char *mount_dir, const char *backing_dir,
 	     int read_timeout_ms);
 
+int umount_fs(const char *mount_dir);
+
 int mount_fs_opt(const char *mount_dir, const char *backing_dir,
 		 const char *opt, bool remount);
 
-- 
GitLab


From aea946bdf05bbeb0ba043157bb77130c946eb037 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Wed, 9 Mar 2022 11:26:56 -0800
Subject: [PATCH 4615/4878] ANDROID: mm: gup: vendor hook in GUP friends

The page pinning causes CMA allocation long latency until the process
held the refcont is scheduled in and then released the refcount, which
introduces CMA allocaiton failure.

To overcome the issue, add vendor hooks to migrate the target page of
GUP out of CMA area.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I5ebf491531d0bfee96ebee83919f22e34ee1d41b
---
 drivers/android/vendor_hooks.c |  6 ++++++
 include/trace/hooks/gup.h      | 34 ++++++++++++++++++++++++++++++++++
 mm/gup.c                       | 15 +++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 include/trace/hooks/gup.h

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index a72414c52a5a1..744e73bc15fc8 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -72,6 +72,7 @@
 #include <trace/hooks/ipv6.h>
 #include <trace/hooks/sound.h>
 #include <trace/hooks/snd_compr.h>
+#include <trace/hooks/gup.h>
 
 /*
  * Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -382,3 +383,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_power_throttle);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_thermal_power_cap);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_get_thermal_zone_device);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_typec_tcpm_modify_src_caps);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_try_grab_compound_head);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh___get_user_pages_remote);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_get_user_pages);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_internal_get_user_pages_fast);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_pin_user_pages);
diff --git a/include/trace/hooks/gup.h b/include/trace/hooks/gup.h
new file mode 100644
index 0000000000000..3f2eb308edfb6
--- /dev/null
+++ b/include/trace/hooks/gup.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM gup
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH trace/hooks
+#if !defined(_TRACE_HOOK_GUP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HOOK_GUP_H
+#include <linux/tracepoint.h>
+#include <trace/hooks/vendor_hooks.h>
+
+struct page;
+
+DECLARE_HOOK(android_vh_try_grab_compound_head,
+       TP_PROTO(struct page *page, int refs, unsigned int flags, bool *ret),
+       TP_ARGS(page, refs, flags, ret));
+
+DECLARE_HOOK(android_vh___get_user_pages_remote,
+       TP_PROTO(int *locked, unsigned int *gup_flags),
+       TP_ARGS(locked, gup_flags));
+
+DECLARE_HOOK(android_vh_get_user_pages,
+       TP_PROTO(unsigned int *gup_flags),
+       TP_ARGS(gup_flags));
+
+DECLARE_HOOK(android_vh_internal_get_user_pages_fast,
+       TP_PROTO(unsigned int *gup_flags),
+       TP_ARGS(gup_flags));
+
+DECLARE_HOOK(android_vh_pin_user_pages,
+       TP_PROTO(unsigned int *gup_flags),
+       TP_ARGS(gup_flags));
+#endif /* _TRACE_HOOK_GUP_H */
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/mm/gup.c b/mm/gup.c
index 54b0a694712e2..ececf00c7971b 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -25,6 +25,9 @@
 
 #include "internal.h"
 
+#undef CREATE_TRACE_POINTS
+#include <trace/hooks/gup.h>
+
 struct follow_page_context {
 	struct dev_pagemap *pgmap;
 	unsigned int page_mask;
@@ -116,6 +119,12 @@ static __maybe_unused struct page *try_grab_compound_head(struct page *page,
 							  int refs,
 							  unsigned int flags)
 {
+	bool vendor_ret = false;
+
+	trace_android_vh_try_grab_compound_head(page, refs, flags, &vendor_ret);
+	if (vendor_ret)
+		return NULL;
+
 	if (flags & FOLL_GET) {
 		struct page *head = try_get_compound_head(page, refs);
 		if (head)
@@ -1760,6 +1769,8 @@ static long __get_user_pages_remote(struct mm_struct *mm,
 				    unsigned int gup_flags, struct page **pages,
 				    struct vm_area_struct **vmas, int *locked)
 {
+	trace_android_vh___get_user_pages_remote(locked, &gup_flags);
+
 	/*
 	 * Parts of FOLL_LONGTERM behavior are incompatible with
 	 * FAULT_FLAG_ALLOW_RETRY because of the FS DAX check requirement on
@@ -1898,6 +1909,8 @@ long get_user_pages(unsigned long start, unsigned long nr_pages,
 	if (!is_valid_gup_flags(gup_flags))
 		return -EINVAL;
 
+	trace_android_vh_get_user_pages(&gup_flags);
+
 	return __gup_longterm_locked(current->mm, start, nr_pages,
 				     pages, vmas, gup_flags | FOLL_TOUCH);
 }
@@ -2707,6 +2720,7 @@ static int internal_get_user_pages_fast(unsigned long start,
 	/* Slow path: try to get the remaining pages with get_user_pages */
 	start += nr_pinned << PAGE_SHIFT;
 	pages += nr_pinned;
+	trace_android_vh_internal_get_user_pages_fast(&gup_flags);
 	ret = __gup_longterm_unlocked(start, nr_pages - nr_pinned, gup_flags,
 				      pages);
 	if (ret < 0) {
@@ -2932,6 +2946,7 @@ long pin_user_pages(unsigned long start, unsigned long nr_pages,
 		return -EINVAL;
 
 	gup_flags |= FOLL_PIN;
+	trace_android_vh_pin_user_pages(&gup_flags);
 	return __gup_longterm_locked(current->mm, start, nr_pages,
 				     pages, vmas, gup_flags);
 }
-- 
GitLab


From 7531264e686cc007639dddb4622290588b6fb5c1 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Wed, 9 Mar 2022 14:35:10 -0800
Subject: [PATCH 4616/4878] ANDROID: Update the ABI symbol list

Update the generic symbol list.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I8c48b029a1a1c7da39e3611446616815630173ab
---
 android/abi_gki_aarch64_generic | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 8b49fe757caf2..75f2c2069758f 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -897,6 +897,7 @@
   get_device
   __get_free_pages
   get_governor_parent_kobj
+  get_pfnblock_flags_mask
   get_pid_task
   get_random_bytes
   get_random_bytes_arch
@@ -2168,10 +2169,14 @@
   __traceiter_android_vh_dup_task_struct
   __traceiter_android_vh_enable_thermal_genl_check
   __traceiter_android_vh_ep_create_wakeup_source
+  __traceiter_android_vh_get_user_pages
+  __traceiter_android_vh___get_user_pages_remote
+  __traceiter_android_vh_internal_get_user_pages_fast
   __traceiter_android_vh_ipi_stop
   __traceiter_android_vh_meminfo_proc_show
   __traceiter_android_vh_of_i2c_get_board_info
   __traceiter_android_vh_pagecache_get_page
+  __traceiter_android_vh_pin_user_pages
   __traceiter_android_vh_rmqueue
   __traceiter_android_vh_scheduler_tick
   __traceiter_android_vh_setscheduler_uclamp
@@ -2180,6 +2185,7 @@
   __traceiter_android_vh_sysrq_crash
   __traceiter_android_vh_thermal_pm_notify_suspend
   __traceiter_android_vh_timerfd_create
+  __traceiter_android_vh_try_grab_compound_head
   __traceiter_android_vh_typec_store_partner_src_caps
   __traceiter_android_vh_typec_tcpci_override_toggling
   __traceiter_android_vh_typec_tcpm_get_timer
@@ -2259,10 +2265,14 @@
   __tracepoint_android_vh_dup_task_struct
   __tracepoint_android_vh_enable_thermal_genl_check
   __tracepoint_android_vh_ep_create_wakeup_source
+  __tracepoint_android_vh_get_user_pages
+  __tracepoint_android_vh___get_user_pages_remote
+  __tracepoint_android_vh_internal_get_user_pages_fast
   __tracepoint_android_vh_ipi_stop
   __tracepoint_android_vh_meminfo_proc_show
   __tracepoint_android_vh_of_i2c_get_board_info
   __tracepoint_android_vh_pagecache_get_page
+  __tracepoint_android_vh_pin_user_pages
   __tracepoint_android_vh_rmqueue
   __tracepoint_android_vh_scheduler_tick
   __tracepoint_android_vh_setscheduler_uclamp
@@ -2271,6 +2281,7 @@
   __tracepoint_android_vh_sysrq_crash
   __tracepoint_android_vh_thermal_pm_notify_suspend
   __tracepoint_android_vh_timerfd_create
+  __tracepoint_android_vh_try_grab_compound_head
   __tracepoint_android_vh_typec_store_partner_src_caps
   __tracepoint_android_vh_typec_tcpci_override_toggling
   __tracepoint_android_vh_typec_tcpm_get_timer
-- 
GitLab


From e5315a20b2c2c2e40b0bd9c3ef87fe4f683124ca Mon Sep 17 00:00:00 2001
From: Victor Shutemov <victor@haleytek.com>
Date: Thu, 17 Mar 2022 15:23:04 +0100
Subject: [PATCH 4617/4878] ANDROID: GKI: enable macsec

This is needed for Volvo Cars

Bug: 224999021

Signed-off-by: Victor Shutemov <victor@haleytek.com>
Change-Id: I61fb2388524ba9efa6cd34873d91dd7cc9fe246e
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 188b192bcd183..c0744fd418c8e 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -331,6 +331,7 @@ CONFIG_NETDEVICES=y
 CONFIG_DUMMY=y
 CONFIG_WIREGUARD=y
 CONFIG_IFB=y
+CONFIG_MACSEC=y
 CONFIG_TUN=y
 CONFIG_VETH=y
 CONFIG_PPP=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 76cb80cb70c3f..ee7976c6d9f8f 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -302,6 +302,7 @@ CONFIG_NETDEVICES=y
 CONFIG_DUMMY=y
 CONFIG_WIREGUARD=y
 CONFIG_IFB=y
+CONFIG_MACSEC=y
 CONFIG_TUN=y
 CONFIG_VETH=y
 CONFIG_PPP=y
-- 
GitLab


From cf9be86ac40d727515c1aa8a5de0e0753f9aa272 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Wed, 23 Mar 2022 10:09:45 -0700
Subject: [PATCH 4618/4878] ANDROID: GKI: 3/23/2022 KMI update

Set KMI_GENERATION=2 for 3/23 KMI update

Leaf changes summary: 505 artifacts changed
Changed leaf types summary: 2 leaf types changed
Removed/Changed/Added functions summary: 0 Removed, 489 Changed, 6 Added functions
Removed/Changed/Added variables summary: 0 Removed, 3 Changed, 5 Added variables

6 Added functions:

  [A] 'function int __traceiter_android_vh___get_user_pages_remote(void*, int*, unsigned int*)'
  [A] 'function int __traceiter_android_vh_get_user_pages(void*, unsigned int*)'
  [A] 'function int __traceiter_android_vh_internal_get_user_pages_fast(void*, unsigned int*)'
  [A] 'function int __traceiter_android_vh_pin_user_pages(void*, unsigned int*)'
  [A] 'function int __traceiter_android_vh_try_grab_compound_head(void*, page*, int, unsigned int, bool*)'
  [A] 'function unsigned long int get_pfnblock_flags_mask(page*, unsigned long int, unsigned long int)'

489 functions with some sub-type change:

  [C] 'function sk_buff* __alloc_skb(unsigned int, gfp_t, int, int)' at skbuff.c:183:1 has some sub-type changes:
    CRC (modversions) changed from 0x42ee9964 to 0x7c77e5af

  [C] 'function sk_buff* __cfg80211_alloc_event_skb(wiphy*, wireless_dev*, nl80211_commands, nl80211_attrs, unsigned int, int, int, gfp_t)' at nl80211.c:10277:1 has some sub-type changes:
    CRC (modversions) changed from 0x55bb655c to 0x5f07fe5f

  [C] 'function sk_buff* __cfg80211_alloc_reply_skb(wiphy*, nl80211_commands, nl80211_attrs, int)' at nl80211.c:13811:1 has some sub-type changes:
    CRC (modversions) changed from 0x8854dc9d to 0x4d096973

  ... 486 omitted; 489 symbols have only CRC changes

5 Added variables:

  [A] 'tracepoint __tracepoint_android_vh___get_user_pages_remote'
  [A] 'tracepoint __tracepoint_android_vh_get_user_pages'
  [A] 'tracepoint __tracepoint_android_vh_internal_get_user_pages_fast'
  [A] 'tracepoint __tracepoint_android_vh_pin_user_pages'
  [A] 'tracepoint __tracepoint_android_vh_try_grab_compound_head'

3 Changed variables:

  [C] 'net init_net' was changed at net_namespace.c:47:1:
    CRC (modversions) changed from 0xaff22d13 to 0x59ca894

  [C] 'pid_namespace init_pid_ns' was changed at pid.c:75:1:
    CRC (modversions) changed from 0x31a2d4d4 to 0x1ee0d04c

  [C] 'softnet_data softnet_data' was changed at dev.c:403:1:
    CRC (modversions) changed from 0x3f45ee4 to 0xad33d222

'struct net_device at netdevice.h:1898:1' changed:
  type size hasn't changed
  1 data member insertion:
    'const macsec_ops* macsec_ops', at offset 19328 (in bits) at netdevice.h:2202:1
  there are data member changes:
    11 ('const udp_tunnel_nic_info* udp_tunnel_nic_info' .. 'u64 android_kabi_reserved8') offsets changed (by +64 bits)
  2953 impacted interfaces

'struct phy_device at phy.h:541:1' changed:
  type size changed from 12736 to 12800 (in bits)
  1 data member insertion:
    'const macsec_ops* macsec_ops', at offset 12480 (in bits) at phy.h:647:1
  there are data member changes:
    4 ('u64 android_kabi_reserved1' .. 'u64 android_kabi_reserved4') offsets changed (by +64 bits)
  2953 impacted interfaces

Bug: 226384098
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I128f3003dff88cee9e0dd4041e2f2cc467dac1ee
---
 android/abi_gki_aarch64.xml | 1407 ++++++++++++++++-------------------
 build.config.common         |    2 +-
 2 files changed, 658 insertions(+), 751 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 5cade141658c5..1be4b7dcd1a6a 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -9,7 +9,7 @@
       <elf-symbol name='__alloc_pages_nodemask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818e45f3'/>
       <elf-symbol name='__alloc_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x949f7342'/>
       <elf-symbol name='__alloc_percpu_gfp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf793668'/>
-      <elf-symbol name='__alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42ee9964'/>
+      <elf-symbol name='__alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c77e5af'/>
       <elf-symbol name='__arch_clear_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55686530'/>
       <elf-symbol name='__arch_copy_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf507de1'/>
       <elf-symbol name='__arch_copy_in_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9957204'/>
@@ -23,9 +23,9 @@
       <elf-symbol name='__bitmap_weight' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c4d61f'/>
       <elf-symbol name='__blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d3c9c0c'/>
       <elf-symbol name='__blk_rq_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cda2b50'/>
-      <elf-symbol name='__cfg80211_alloc_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55bb655c'/>
-      <elf-symbol name='__cfg80211_alloc_reply_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8854dc9d'/>
-      <elf-symbol name='__cfg80211_send_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d582d68'/>
+      <elf-symbol name='__cfg80211_alloc_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f07fe5f'/>
+      <elf-symbol name='__cfg80211_alloc_reply_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d096973'/>
+      <elf-symbol name='__cfg80211_send_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d7053ae'/>
       <elf-symbol name='__cfi_slowpath' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cd90edd'/>
       <elf-symbol name='__check_object_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88db9f48'/>
       <elf-symbol name='__class_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7131f2a'/>
@@ -46,8 +46,8 @@
       <elf-symbol name='__cpuhp_state_add_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe21d8f58'/>
       <elf-symbol name='__cpuhp_state_remove_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6753e8cf'/>
       <elf-symbol name='__crypto_memneq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a44f8cb'/>
-      <elf-symbol name='__dev_get_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc80fbd46'/>
-      <elf-symbol name='__dev_kfree_skb_any' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5d009a1'/>
+      <elf-symbol name='__dev_get_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb0c5fb2'/>
+      <elf-symbol name='__dev_kfree_skb_any' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6fe088d'/>
       <elf-symbol name='__devm_drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda6d198'/>
       <elf-symbol name='__devm_iio_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba7f933'/>
       <elf-symbol name='__devm_of_phy_provider_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0c7e007'/>
@@ -78,21 +78,21 @@
       <elf-symbol name='__drm_printfn_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb953b1'/>
       <elf-symbol name='__drm_puts_coredump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b0e5e9c'/>
       <elf-symbol name='__drm_puts_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x513072fe'/>
-      <elf-symbol name='__dynamic_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x211f9974'/>
+      <elf-symbol name='__dynamic_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40db9de7'/>
       <elf-symbol name='__dynamic_pr_debug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x837b7b09'/>
-      <elf-symbol name='__ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a9bb4f4'/>
+      <elf-symbol name='__ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26e3598b'/>
       <elf-symbol name='__fdget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1d8cfaf'/>
       <elf-symbol name='__free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacd2f3fc'/>
       <elf-symbol name='__get_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a5cb5ee'/>
       <elf-symbol name='__get_task_comm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e8de867'/>
-      <elf-symbol name='__hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d5d9f29'/>
-      <elf-symbol name='__hci_cmd_sync_ev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dfead41'/>
+      <elf-symbol name='__hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaa84ac3'/>
+      <elf-symbol name='__hci_cmd_sync_ev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x687f046b'/>
       <elf-symbol name='__hvc_resize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd452da24'/>
       <elf-symbol name='__hwspin_lock_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe33e7fcf'/>
       <elf-symbol name='__hwspin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccef5d0'/>
       <elf-symbol name='__i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x488f26bf'/>
       <elf-symbol name='__i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17263c79'/>
-      <elf-symbol name='__ieee80211_schedule_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6326f5'/>
+      <elf-symbol name='__ieee80211_schedule_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d00d9c'/>
       <elf-symbol name='__init_rwsem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5a94b83'/>
       <elf-symbol name='__init_swait_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x608741b5'/>
       <elf-symbol name='__init_waitqueue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a5ea54'/>
@@ -130,15 +130,15 @@
       <elf-symbol name='__module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0d15e4c'/>
       <elf-symbol name='__msecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f02188f'/>
       <elf-symbol name='__mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x574add77'/>
-      <elf-symbol name='__napi_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfbdf36'/>
-      <elf-symbol name='__napi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x814cec45'/>
+      <elf-symbol name='__napi_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcafb8b3'/>
+      <elf-symbol name='__napi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc16d462e'/>
       <elf-symbol name='__ndelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf8c695a'/>
-      <elf-symbol name='__netdev_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3149ce5'/>
-      <elf-symbol name='__netif_napi_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39d9662d'/>
-      <elf-symbol name='__netif_set_xps_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7bf993c'/>
-      <elf-symbol name='__netlink_kernel_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2022665'/>
+      <elf-symbol name='__netdev_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5ca2f9d'/>
+      <elf-symbol name='__netif_napi_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597442ef'/>
+      <elf-symbol name='__netif_set_xps_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72b434f8'/>
+      <elf-symbol name='__netlink_kernel_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1548948d'/>
       <elf-symbol name='__nla_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x420964e3'/>
-      <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4398e6f9'/>
+      <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5c03c7'/>
       <elf-symbol name='__of_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x220b3ca3'/>
       <elf-symbol name='__page_frag_cache_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82702c60'/>
       <elf-symbol name='__page_pinner_migration_failed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf75ae849'/>
@@ -154,7 +154,7 @@
       <elf-symbol name='__pm_runtime_use_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c735047'/>
       <elf-symbol name='__pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811ba580'/>
       <elf-symbol name='__printk_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6128b5fc'/>
-      <elf-symbol name='__pskb_pull_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x676c479c'/>
+      <elf-symbol name='__pskb_pull_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81706f8d'/>
       <elf-symbol name='__put_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5ce765e'/>
       <elf-symbol name='__put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ea8ef0'/>
       <elf-symbol name='__put_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171996f6'/>
@@ -169,7 +169,7 @@
       <elf-symbol name='__request_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d9ee2a0'/>
       <elf-symbol name='__request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca39ba0'/>
       <elf-symbol name='__rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0d156e9'/>
-      <elf-symbol name='__root_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92977172'/>
+      <elf-symbol name='__root_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf56f834'/>
       <elf-symbol name='__rt_mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9377942'/>
       <elf-symbol name='__rtc_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5384acc6'/>
       <elf-symbol name='__scsi_iterate_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba247812'/>
@@ -183,9 +183,9 @@
       <elf-symbol name='__sg_page_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9ca58f'/>
       <elf-symbol name='__sg_page_iter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd4c999'/>
       <elf-symbol name='__skb_ext_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42e61877'/>
-      <elf-symbol name='__skb_flow_dissect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x142677b1'/>
-      <elf-symbol name='__skb_get_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x200de2da'/>
-      <elf-symbol name='__skb_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac0d08f7'/>
+      <elf-symbol name='__skb_flow_dissect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bafb455'/>
+      <elf-symbol name='__skb_get_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7633562'/>
+      <elf-symbol name='__skb_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a49eae'/>
       <elf-symbol name='__spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf46fef67'/>
       <elf-symbol name='__spi_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x748fa1fb'/>
       <elf-symbol name='__splice_from_pipe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x608c4e42'/>
@@ -197,7 +197,7 @@
       <elf-symbol name='__sw_hweight64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f46ced8'/>
       <elf-symbol name='__sw_hweight8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc3fcbc9'/>
       <elf-symbol name='__sysfs_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169938c1'/>
-      <elf-symbol name='__task_pid_nr_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x532cd153'/>
+      <elf-symbol name='__task_pid_nr_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1944182'/>
       <elf-symbol name='__tasklet_hi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e3bad0a'/>
       <elf-symbol name='__tasklet_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d2ab8ac'/>
       <elf-symbol name='__trace_bprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa20d01ba'/>
@@ -233,6 +233,7 @@
       <elf-symbol name='__traceiter_android_rvh_ufs_complete_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x347db806'/>
       <elf-symbol name='__traceiter_android_rvh_ufs_reprogram_all_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac38cf23'/>
       <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2968ee74'/>
+      <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeda60f64'/>
       <elf-symbol name='__traceiter_android_vh_aes_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1574b'/>
       <elf-symbol name='__traceiter_android_vh_aes_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6160ff0c'/>
       <elf-symbol name='__traceiter_android_vh_aes_expandkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc004b58'/>
@@ -244,12 +245,15 @@
       <elf-symbol name='__traceiter_android_vh_dup_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eb9ac10'/>
       <elf-symbol name='__traceiter_android_vh_enable_thermal_genl_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc39a1e16'/>
       <elf-symbol name='__traceiter_android_vh_ep_create_wakeup_source' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e8ed582'/>
+      <elf-symbol name='__traceiter_android_vh_get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9854c76b'/>
+      <elf-symbol name='__traceiter_android_vh_internal_get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e523298'/>
       <elf-symbol name='__traceiter_android_vh_ipi_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x250fcbba'/>
       <elf-symbol name='__traceiter_android_vh_meminfo_proc_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6b0362e'/>
       <elf-symbol name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a666675'/>
       <elf-symbol name='__traceiter_android_vh_mmc_blk_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae47a396'/>
       <elf-symbol name='__traceiter_android_vh_of_i2c_get_board_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcc0513d'/>
       <elf-symbol name='__traceiter_android_vh_pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e4bbcf'/>
+      <elf-symbol name='__traceiter_android_vh_pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa07ed526'/>
       <elf-symbol name='__traceiter_android_vh_rmqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9aacbdd9'/>
       <elf-symbol name='__traceiter_android_vh_scheduler_tick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c91de8f'/>
       <elf-symbol name='__traceiter_android_vh_setscheduler_uclamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2670a8ee'/>
@@ -259,6 +263,7 @@
       <elf-symbol name='__traceiter_android_vh_sysrq_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40207816'/>
       <elf-symbol name='__traceiter_android_vh_thermal_pm_notify_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d0ef19f'/>
       <elf-symbol name='__traceiter_android_vh_timerfd_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c68d59c'/>
+      <elf-symbol name='__traceiter_android_vh_try_grab_compound_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76902002'/>
       <elf-symbol name='__traceiter_android_vh_typec_store_partner_src_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3707443'/>
       <elf-symbol name='__traceiter_android_vh_typec_tcpci_override_toggling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd3fc09b'/>
       <elf-symbol name='__traceiter_android_vh_typec_tcpm_get_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa264e589'/>
@@ -298,7 +303,7 @@
       <elf-symbol name='__traceiter_sched_util_est_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9990573a'/>
       <elf-symbol name='__traceiter_sched_util_est_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63423c10'/>
       <elf-symbol name='__traceiter_suspend_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5883efb'/>
-      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed1d6f84'/>
+      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x520bb9af'/>
       <elf-symbol name='__tty_insert_flip_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ad626c6'/>
       <elf-symbol name='__udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e7d6bd0'/>
       <elf-symbol name='__uio_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x817cf9ee'/>
@@ -312,16 +317,16 @@
       <elf-symbol name='__wake_up_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8273d0b'/>
       <elf-symbol name='__warn_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56470118'/>
       <elf-symbol name='__xa_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf40e7a73'/>
-      <elf-symbol name='__xfrm_state_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98649520'/>
+      <elf-symbol name='__xfrm_state_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x677fd8de'/>
       <elf-symbol name='_copy_from_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa016aa25'/>
       <elf-symbol name='_copy_from_iter_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdbf0404'/>
       <elf-symbol name='_copy_to_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1df176e9'/>
-      <elf-symbol name='_dev_crit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3132a9e'/>
-      <elf-symbol name='_dev_emerg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f7f06d6'/>
-      <elf-symbol name='_dev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fb4b5ed'/>
-      <elf-symbol name='_dev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74feff2b'/>
-      <elf-symbol name='_dev_notice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x363a4b43'/>
-      <elf-symbol name='_dev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9453a732'/>
+      <elf-symbol name='_dev_crit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f7756cf'/>
+      <elf-symbol name='_dev_emerg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44f20b51'/>
+      <elf-symbol name='_dev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x216240e'/>
+      <elf-symbol name='_dev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf65b59e'/>
+      <elf-symbol name='_dev_notice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa78ffc37'/>
+      <elf-symbol name='_dev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f385e04'/>
       <elf-symbol name='_raw_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe8c61f0'/>
       <elf-symbol name='_raw_read_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8dee722d'/>
       <elf-symbol name='_raw_read_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48112d76'/>
@@ -366,15 +371,15 @@
       <elf-symbol name='alarm_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3295ffe'/>
       <elf-symbol name='alarmtimer_get_rtcdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfbb1c96'/>
       <elf-symbol name='alloc_anon_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd987c1'/>
-      <elf-symbol name='alloc_can_err_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2391f2a3'/>
-      <elf-symbol name='alloc_can_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37b1cb93'/>
-      <elf-symbol name='alloc_candev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d310af2'/>
+      <elf-symbol name='alloc_can_err_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x355dd968'/>
+      <elf-symbol name='alloc_can_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c6016cf'/>
+      <elf-symbol name='alloc_candev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc83c324'/>
       <elf-symbol name='alloc_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3ec2f2b'/>
-      <elf-symbol name='alloc_etherdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f29123e'/>
+      <elf-symbol name='alloc_etherdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9445cf15'/>
       <elf-symbol name='alloc_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d6234b'/>
-      <elf-symbol name='alloc_netdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9e75e4f'/>
+      <elf-symbol name='alloc_netdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b9a8691'/>
       <elf-symbol name='alloc_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fc72f0e'/>
-      <elf-symbol name='alloc_skb_with_frags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a5b931'/>
+      <elf-symbol name='alloc_skb_with_frags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ee2faec'/>
       <elf-symbol name='alloc_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf9208c0'/>
       <elf-symbol name='amba_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab8e7ee9'/>
       <elf-symbol name='amba_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6d92348'/>
@@ -505,30 +510,30 @@
       <elf-symbol name='blocking_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb0c86a5'/>
       <elf-symbol name='blocking_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x963aa2a9'/>
       <elf-symbol name='bpf_dispatcher_xdp_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f8f674a'/>
-      <elf-symbol name='bpf_prog_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383ddb61'/>
-      <elf-symbol name='bpf_prog_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb56d201f'/>
-      <elf-symbol name='bpf_prog_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc519e1de'/>
-      <elf-symbol name='bpf_trace_run1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9bab223'/>
-      <elf-symbol name='bpf_trace_run10' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6acc5ca'/>
-      <elf-symbol name='bpf_trace_run11' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8e4c044'/>
-      <elf-symbol name='bpf_trace_run12' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2787d850'/>
-      <elf-symbol name='bpf_trace_run2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71672bcd'/>
-      <elf-symbol name='bpf_trace_run3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdddbea1b'/>
-      <elf-symbol name='bpf_trace_run4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6180c3f0'/>
-      <elf-symbol name='bpf_trace_run5' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf89d44f'/>
-      <elf-symbol name='bpf_trace_run6' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94b100d4'/>
-      <elf-symbol name='bpf_trace_run7' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335c6c26'/>
-      <elf-symbol name='bpf_trace_run8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e1019a9'/>
-      <elf-symbol name='bpf_trace_run9' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f61af74'/>
+      <elf-symbol name='bpf_prog_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf490860d'/>
+      <elf-symbol name='bpf_prog_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc04673e9'/>
+      <elf-symbol name='bpf_prog_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x867b9051'/>
+      <elf-symbol name='bpf_trace_run1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x303e6d24'/>
+      <elf-symbol name='bpf_trace_run10' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3b3aa88'/>
+      <elf-symbol name='bpf_trace_run11' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x569ac243'/>
+      <elf-symbol name='bpf_trace_run12' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7179f3fc'/>
+      <elf-symbol name='bpf_trace_run2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb4d16e8'/>
+      <elf-symbol name='bpf_trace_run3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c752078'/>
+      <elf-symbol name='bpf_trace_run4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8619cb06'/>
+      <elf-symbol name='bpf_trace_run5' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe233aa2b'/>
+      <elf-symbol name='bpf_trace_run6' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x667a6f5b'/>
+      <elf-symbol name='bpf_trace_run7' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eabd308'/>
+      <elf-symbol name='bpf_trace_run8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82f341ea'/>
+      <elf-symbol name='bpf_trace_run9' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdcf2fb1'/>
       <elf-symbol name='bpf_warn_invalid_xdp_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2bcd37'/>
       <elf-symbol name='bt_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b8c32f1'/>
       <elf-symbol name='bt_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x718b8b7'/>
       <elf-symbol name='bt_to_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aad008b'/>
       <elf-symbol name='bt_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x214e4265'/>
-      <elf-symbol name='btbcm_set_bdaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aee73b5'/>
-      <elf-symbol name='btbcm_setup_apple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb44677e'/>
-      <elf-symbol name='btbcm_setup_patchram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4743b39'/>
-      <elf-symbol name='build_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x117d5f4'/>
+      <elf-symbol name='btbcm_set_bdaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97edbbd2'/>
+      <elf-symbol name='btbcm_setup_apple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7686b027'/>
+      <elf-symbol name='btbcm_setup_patchram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde3eeda9'/>
+      <elf-symbol name='build_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc353678'/>
       <elf-symbol name='bus_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbe4f6da'/>
       <elf-symbol name='bus_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b6ccf40'/>
       <elf-symbol name='bus_for_each_drv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cb311'/>
@@ -538,11 +543,11 @@
       <elf-symbol name='bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a41daf'/>
       <elf-symbol name='bus_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c7225'/>
       <elf-symbol name='cache_line_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x605d5bfa'/>
-      <elf-symbol name='call_netdevice_notifiers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ecf2037'/>
-      <elf-symbol name='can_change_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a72706e'/>
-      <elf-symbol name='can_free_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae9043b4'/>
-      <elf-symbol name='can_get_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc690b2d2'/>
-      <elf-symbol name='can_put_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8123a045'/>
+      <elf-symbol name='call_netdevice_notifiers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c90beef'/>
+      <elf-symbol name='can_change_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff93097'/>
+      <elf-symbol name='can_free_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd070944e'/>
+      <elf-symbol name='can_get_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x183ac05a'/>
+      <elf-symbol name='can_put_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x151c2d22'/>
       <elf-symbol name='cancel_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda571594'/>
       <elf-symbol name='cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8beca97'/>
       <elf-symbol name='cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd969d6f4'/>
@@ -564,40 +569,40 @@
       <elf-symbol name='cec_transmit_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x821f891b'/>
       <elf-symbol name='cec_unregister_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57241e0d'/>
       <elf-symbol name='cfg80211_calculate_bitrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15a37cf3'/>
-      <elf-symbol name='cfg80211_ch_switch_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3edafbc6'/>
+      <elf-symbol name='cfg80211_ch_switch_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe67863f6'/>
       <elf-symbol name='cfg80211_chandef_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef265f27'/>
-      <elf-symbol name='cfg80211_connect_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148cfa49'/>
-      <elf-symbol name='cfg80211_del_sta_sinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72a297d5'/>
-      <elf-symbol name='cfg80211_disconnected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951456b3'/>
-      <elf-symbol name='cfg80211_external_auth_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbefcaba8'/>
+      <elf-symbol name='cfg80211_connect_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe511ebe2'/>
+      <elf-symbol name='cfg80211_del_sta_sinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94491b26'/>
+      <elf-symbol name='cfg80211_disconnected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13478138'/>
+      <elf-symbol name='cfg80211_external_auth_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63400bb6'/>
       <elf-symbol name='cfg80211_find_elem_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d6cba30'/>
       <elf-symbol name='cfg80211_find_vendor_elem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b82a71'/>
-      <elf-symbol name='cfg80211_get_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x328d16d4'/>
-      <elf-symbol name='cfg80211_gtk_rekey_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ffdd313'/>
-      <elf-symbol name='cfg80211_ibss_joined' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd11723'/>
-      <elf-symbol name='cfg80211_inform_bss_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4487d922'/>
-      <elf-symbol name='cfg80211_inform_bss_frame_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x207e4744'/>
-      <elf-symbol name='cfg80211_mgmt_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa15b2af9'/>
-      <elf-symbol name='cfg80211_michael_mic_failure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e803092'/>
-      <elf-symbol name='cfg80211_new_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15f8d46'/>
-      <elf-symbol name='cfg80211_pmksa_candidate_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e6a258'/>
-      <elf-symbol name='cfg80211_port_authorized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaaae4122'/>
-      <elf-symbol name='cfg80211_put_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91b275cc'/>
-      <elf-symbol name='cfg80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94755b9f'/>
-      <elf-symbol name='cfg80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadcd6f9'/>
-      <elf-symbol name='cfg80211_roamed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41a2c31e'/>
-      <elf-symbol name='cfg80211_rx_mgmt_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9debcbe2'/>
-      <elf-symbol name='cfg80211_rx_unprot_mlme_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5671a455'/>
-      <elf-symbol name='cfg80211_scan_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d866aad'/>
-      <elf-symbol name='cfg80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84ac3ed4'/>
-      <elf-symbol name='cfg80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7179509a'/>
-      <elf-symbol name='cfg80211_sched_scan_stopped_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a26cca8'/>
-      <elf-symbol name='cfg80211_stop_iface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6afd1311'/>
-      <elf-symbol name='cfg80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52f189ed'/>
-      <elf-symbol name='cfg80211_unlink_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfb85975'/>
-      <elf-symbol name='cfg80211_unregister_wdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3d10170'/>
-      <elf-symbol name='cfg80211_update_owe_info_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe206c2f8'/>
-      <elf-symbol name='cfg80211_vendor_cmd_reply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55e4f2f2'/>
+      <elf-symbol name='cfg80211_get_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75d5ea01'/>
+      <elf-symbol name='cfg80211_gtk_rekey_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb483f8b'/>
+      <elf-symbol name='cfg80211_ibss_joined' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd05257d'/>
+      <elf-symbol name='cfg80211_inform_bss_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb894b40e'/>
+      <elf-symbol name='cfg80211_inform_bss_frame_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab3beb43'/>
+      <elf-symbol name='cfg80211_mgmt_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb87718c'/>
+      <elf-symbol name='cfg80211_michael_mic_failure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c1eccbe'/>
+      <elf-symbol name='cfg80211_new_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2da234f7'/>
+      <elf-symbol name='cfg80211_pmksa_candidate_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4db7285b'/>
+      <elf-symbol name='cfg80211_port_authorized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7366d6'/>
+      <elf-symbol name='cfg80211_put_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaa74022'/>
+      <elf-symbol name='cfg80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x208f4020'/>
+      <elf-symbol name='cfg80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9905798'/>
+      <elf-symbol name='cfg80211_roamed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e379cb6'/>
+      <elf-symbol name='cfg80211_rx_mgmt_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4823f93'/>
+      <elf-symbol name='cfg80211_rx_unprot_mlme_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bfe26b2'/>
+      <elf-symbol name='cfg80211_scan_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd25fa0df'/>
+      <elf-symbol name='cfg80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7b315bc'/>
+      <elf-symbol name='cfg80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98604c49'/>
+      <elf-symbol name='cfg80211_sched_scan_stopped_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb54026a9'/>
+      <elf-symbol name='cfg80211_stop_iface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb0522cc'/>
+      <elf-symbol name='cfg80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7459eb'/>
+      <elf-symbol name='cfg80211_unlink_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa942539e'/>
+      <elf-symbol name='cfg80211_unregister_wdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f722bf1'/>
+      <elf-symbol name='cfg80211_update_owe_info_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af51dc4'/>
+      <elf-symbol name='cfg80211_vendor_cmd_reply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3c1758c'/>
       <elf-symbol name='class_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61823fd'/>
       <elf-symbol name='class_interface_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e979ea3'/>
       <elf-symbol name='class_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3bd2b'/>
@@ -645,7 +650,7 @@
       <elf-symbol name='clk_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7757b51a'/>
       <elf-symbol name='clockevents_config_and_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11df07b4'/>
       <elf-symbol name='clocks_calc_mult_shift' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62bb09bf'/>
-      <elf-symbol name='close_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b622b60'/>
+      <elf-symbol name='close_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171b013e'/>
       <elf-symbol name='cma_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3311dc19'/>
       <elf-symbol name='cma_for_each_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec4a2a21'/>
       <elf-symbol name='cma_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x287a30ac'/>
@@ -674,7 +679,7 @@
       <elf-symbol name='configfs_unregister_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea988bc8'/>
       <elf-symbol name='console_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d04664'/>
       <elf-symbol name='console_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc631580a'/>
-      <elf-symbol name='consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c983e65'/>
+      <elf-symbol name='consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb9e8dd8'/>
       <elf-symbol name='cpu_have_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41237f71'/>
       <elf-symbol name='cpu_latency_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x589e1a22'/>
       <elf-symbol name='cpu_latency_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3aaa15b2'/>
@@ -733,8 +738,8 @@
       <elf-symbol name='crypto_alloc_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x423ff6df'/>
       <elf-symbol name='crypto_alloc_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaccac105'/>
       <elf-symbol name='crypto_alloc_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ed56155'/>
-      <elf-symbol name='crypto_alloc_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e32022f'/>
-      <elf-symbol name='crypto_alloc_sync_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa535d4f6'/>
+      <elf-symbol name='crypto_alloc_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c3ff046'/>
+      <elf-symbol name='crypto_alloc_sync_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbac41307'/>
       <elf-symbol name='crypto_attr_alg_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a11a0fc'/>
       <elf-symbol name='crypto_check_attr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4934bdd0'/>
       <elf-symbol name='crypto_cipher_encrypt_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8636029'/>
@@ -742,33 +747,33 @@
       <elf-symbol name='crypto_comp_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7c8c35a'/>
       <elf-symbol name='crypto_comp_decompress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca6b505'/>
       <elf-symbol name='crypto_destroy_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e49ad49'/>
-      <elf-symbol name='crypto_drop_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1f76103'/>
+      <elf-symbol name='crypto_drop_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1716ec38'/>
       <elf-symbol name='crypto_get_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3232f8ca'/>
       <elf-symbol name='crypto_grab_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f433ad0'/>
       <elf-symbol name='crypto_grab_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d1a0664'/>
       <elf-symbol name='crypto_grab_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa58524fc'/>
-      <elf-symbol name='crypto_grab_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54c6e412'/>
-      <elf-symbol name='crypto_grab_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1755205'/>
+      <elf-symbol name='crypto_grab_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc220b29b'/>
+      <elf-symbol name='crypto_grab_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d5f7f2c'/>
       <elf-symbol name='crypto_has_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951a2773'/>
-      <elf-symbol name='crypto_inst_setname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe31d2ac7'/>
+      <elf-symbol name='crypto_inst_setname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16a8845b'/>
       <elf-symbol name='crypto_put_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21cd536a'/>
       <elf-symbol name='crypto_register_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc010019'/>
       <elf-symbol name='crypto_register_aeads' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14cc4060'/>
       <elf-symbol name='crypto_register_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429cf632'/>
       <elf-symbol name='crypto_register_ahashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c4aed31'/>
-      <elf-symbol name='crypto_register_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe558d510'/>
-      <elf-symbol name='crypto_register_algs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75e28dd8'/>
+      <elf-symbol name='crypto_register_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x833f6a9b'/>
+      <elf-symbol name='crypto_register_algs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6910d155'/>
       <elf-symbol name='crypto_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9879932b'/>
       <elf-symbol name='crypto_register_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8060860'/>
       <elf-symbol name='crypto_register_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x903a8c93'/>
       <elf-symbol name='crypto_register_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fcbfdee'/>
       <elf-symbol name='crypto_register_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x427bf83c'/>
       <elf-symbol name='crypto_register_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe418d562'/>
-      <elf-symbol name='crypto_register_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6544ed20'/>
-      <elf-symbol name='crypto_register_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeaf34f5'/>
-      <elf-symbol name='crypto_register_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x895ba341'/>
-      <elf-symbol name='crypto_register_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1486a42c'/>
-      <elf-symbol name='crypto_remove_spawns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0b820c'/>
+      <elf-symbol name='crypto_register_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa37c8f2a'/>
+      <elf-symbol name='crypto_register_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x106e8712'/>
+      <elf-symbol name='crypto_register_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf65bac44'/>
+      <elf-symbol name='crypto_register_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe93201c6'/>
+      <elf-symbol name='crypto_remove_spawns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9db2f935'/>
       <elf-symbol name='crypto_req_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31752a0d'/>
       <elf-symbol name='crypto_rng_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71b456c7'/>
       <elf-symbol name='crypto_shash_alg_has_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12cd8c56'/>
@@ -778,22 +783,22 @@
       <elf-symbol name='crypto_shash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c113d0c'/>
       <elf-symbol name='crypto_shash_tfm_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec318a9'/>
       <elf-symbol name='crypto_shash_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x280a4826'/>
-      <elf-symbol name='crypto_skcipher_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5290ec52'/>
-      <elf-symbol name='crypto_skcipher_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed48f554'/>
-      <elf-symbol name='crypto_skcipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb80ac271'/>
-      <elf-symbol name='crypto_spawn_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd83c0e9'/>
-      <elf-symbol name='crypto_spawn_tfm2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d4b7a96'/>
+      <elf-symbol name='crypto_skcipher_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72e85757'/>
+      <elf-symbol name='crypto_skcipher_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32489a87'/>
+      <elf-symbol name='crypto_skcipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73c71b88'/>
+      <elf-symbol name='crypto_spawn_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95b8ff1d'/>
+      <elf-symbol name='crypto_spawn_tfm2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49fe8cf0'/>
       <elf-symbol name='crypto_unregister_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb11bfa74'/>
-      <elf-symbol name='crypto_unregister_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2337f10b'/>
+      <elf-symbol name='crypto_unregister_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb378f58e'/>
       <elf-symbol name='crypto_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x710c73b6'/>
       <elf-symbol name='crypto_unregister_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04c78c3'/>
       <elf-symbol name='crypto_unregister_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1a12f04'/>
       <elf-symbol name='crypto_unregister_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x883b95dd'/>
       <elf-symbol name='crypto_unregister_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90645ab4'/>
       <elf-symbol name='crypto_unregister_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb547153d'/>
-      <elf-symbol name='crypto_unregister_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf798497b'/>
-      <elf-symbol name='crypto_unregister_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa406e80f'/>
-      <elf-symbol name='crypto_unregister_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7f62c3e'/>
+      <elf-symbol name='crypto_unregister_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8fb3411'/>
+      <elf-symbol name='crypto_unregister_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d0cdab5'/>
+      <elf-symbol name='crypto_unregister_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6000437'/>
       <elf-symbol name='csum_ipv6_magic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d65cbd5'/>
       <elf-symbol name='csum_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe113bbbc'/>
       <elf-symbol name='csum_tcpudp_nofold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd25bc5d4'/>
@@ -803,7 +808,7 @@
       <elf-symbol name='d_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383bd26'/>
       <elf-symbol name='d_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc499dcbd'/>
       <elf-symbol name='d_make_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x931b832d'/>
-      <elf-symbol name='datagram_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27e3ca13'/>
+      <elf-symbol name='datagram_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa39b328b'/>
       <elf-symbol name='debugfs_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63b7c596'/>
       <elf-symbol name='debugfs_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13e17040'/>
       <elf-symbol name='debugfs_create_atomic_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb22eecb'/>
@@ -831,19 +836,19 @@
       <elf-symbol name='delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253af43d'/>
       <elf-symbol name='desc_to_gpio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cbb5bfb'/>
       <elf-symbol name='destroy_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c03d20c'/>
-      <elf-symbol name='dev_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d063b15'/>
-      <elf-symbol name='dev_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x865a99e0'/>
+      <elf-symbol name='dev_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x303c518a'/>
+      <elf-symbol name='dev_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88319077'/>
       <elf-symbol name='dev_coredumpm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86552fa9'/>
       <elf-symbol name='dev_coredumpv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb29dbd9'/>
-      <elf-symbol name='dev_driver_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf6eb3ac'/>
-      <elf-symbol name='dev_err_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98776dd5'/>
-      <elf-symbol name='dev_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x469ecc15'/>
-      <elf-symbol name='dev_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8dbca9c1'/>
+      <elf-symbol name='dev_driver_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951d005e'/>
+      <elf-symbol name='dev_err_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51fde028'/>
+      <elf-symbol name='dev_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25a2d727'/>
+      <elf-symbol name='dev_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65339256'/>
       <elf-symbol name='dev_get_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cce78a5'/>
-      <elf-symbol name='dev_get_stats' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd13d8d6d'/>
-      <elf-symbol name='dev_mc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x768f3117'/>
-      <elf-symbol name='dev_mc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86ed0c8'/>
-      <elf-symbol name='dev_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bd2c065'/>
+      <elf-symbol name='dev_get_stats' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45e8d2f0'/>
+      <elf-symbol name='dev_mc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc559c461'/>
+      <elf-symbol name='dev_mc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b86cde'/>
+      <elf-symbol name='dev_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eb341f5'/>
       <elf-symbol name='dev_pm_clear_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc69b5888'/>
       <elf-symbol name='dev_pm_domain_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee43354d'/>
       <elf-symbol name='dev_pm_domain_attach_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39c660ec'/>
@@ -894,13 +899,13 @@
       <elf-symbol name='dev_pm_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0c4e1c4'/>
       <elf-symbol name='dev_pm_qos_update_user_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x180cf516'/>
       <elf-symbol name='dev_pm_set_dedicated_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x660f9121'/>
-      <elf-symbol name='dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f04855c'/>
-      <elf-symbol name='dev_printk_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55f1e668'/>
-      <elf-symbol name='dev_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd00c5004'/>
-      <elf-symbol name='dev_set_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9382dee'/>
-      <elf-symbol name='dev_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb89e4de3'/>
-      <elf-symbol name='dev_uc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c2fa19'/>
-      <elf-symbol name='dev_uc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ab6106'/>
+      <elf-symbol name='dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45751c11'/>
+      <elf-symbol name='dev_printk_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10f11399'/>
+      <elf-symbol name='dev_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2facd5c9'/>
+      <elf-symbol name='dev_set_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf961a6e'/>
+      <elf-symbol name='dev_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bf85a1c'/>
+      <elf-symbol name='dev_uc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe78300ae'/>
+      <elf-symbol name='dev_uc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24821c2a'/>
       <elf-symbol name='devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd5efe81'/>
       <elf-symbol name='devfreq_add_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x822ee5fc'/>
       <elf-symbol name='devfreq_cooling_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f718b4b'/>
@@ -915,45 +920,45 @@
       <elf-symbol name='devfreq_suspend_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc7d86aa'/>
       <elf-symbol name='devfreq_unregister_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df99458'/>
       <elf-symbol name='devfreq_update_interval' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb3ecbef'/>
-      <elf-symbol name='device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82eff8a4'/>
+      <elf-symbol name='device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67eb5992'/>
       <elf-symbol name='device_add_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb21108'/>
-      <elf-symbol name='device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x195f92cb'/>
+      <elf-symbol name='device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xede6cb61'/>
       <elf-symbol name='device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f72f0ae'/>
       <elf-symbol name='device_bind_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbc4df26'/>
-      <elf-symbol name='device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98f3401'/>
-      <elf-symbol name='device_create_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe438826'/>
-      <elf-symbol name='device_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148427c7'/>
-      <elf-symbol name='device_create_with_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x235ab42a'/>
-      <elf-symbol name='device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25c41e3f'/>
-      <elf-symbol name='device_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4120b5ae'/>
-      <elf-symbol name='device_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80ecaf78'/>
-      <elf-symbol name='device_for_each_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe19b409c'/>
-      <elf-symbol name='device_get_child_node_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0bd7020'/>
-      <elf-symbol name='device_get_dma_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13334a6'/>
-      <elf-symbol name='device_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1095c3ab'/>
-      <elf-symbol name='device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x744e031f'/>
-      <elf-symbol name='device_get_named_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e11a5ff'/>
-      <elf-symbol name='device_get_next_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a0ca713'/>
+      <elf-symbol name='device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a0d51d1'/>
+      <elf-symbol name='device_create_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7400e712'/>
+      <elf-symbol name='device_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf12801de'/>
+      <elf-symbol name='device_create_with_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5345fb8'/>
+      <elf-symbol name='device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecec0188'/>
+      <elf-symbol name='device_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d0b2ce'/>
+      <elf-symbol name='device_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb67ae03a'/>
+      <elf-symbol name='device_for_each_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddd66619'/>
+      <elf-symbol name='device_get_child_node_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56bd2044'/>
+      <elf-symbol name='device_get_dma_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee94c46b'/>
+      <elf-symbol name='device_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda2b29cf'/>
+      <elf-symbol name='device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2736558f'/>
+      <elf-symbol name='device_get_named_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96ce76ed'/>
+      <elf-symbol name='device_get_next_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd098536e'/>
       <elf-symbol name='device_init_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae7a86a6'/>
-      <elf-symbol name='device_initialize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e0ec40b'/>
-      <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7420a13'/>
-      <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a52c938'/>
-      <elf-symbol name='device_match_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6e68543'/>
-      <elf-symbol name='device_match_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x613f508f'/>
-      <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefe90225'/>
-      <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc78be0f7'/>
-      <elf-symbol name='device_property_read_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0540760'/>
-      <elf-symbol name='device_property_read_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67c02ca5'/>
-      <elf-symbol name='device_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d90dee3'/>
-      <elf-symbol name='device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe25523b'/>
+      <elf-symbol name='device_initialize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x319cedc1'/>
+      <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d163a52'/>
+      <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3593685'/>
+      <elf-symbol name='device_match_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x636e87d0'/>
+      <elf-symbol name='device_match_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f0076c'/>
+      <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x680b8786'/>
+      <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x257d03e0'/>
+      <elf-symbol name='device_property_read_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d13279'/>
+      <elf-symbol name='device_property_read_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fa4da5c'/>
+      <elf-symbol name='device_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacbb708b'/>
+      <elf-symbol name='device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9289768b'/>
       <elf-symbol name='device_release_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x454440f1'/>
-      <elf-symbol name='device_remove_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4749845e'/>
-      <elf-symbol name='device_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78042805'/>
-      <elf-symbol name='device_remove_file_self' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd16e89bf'/>
-      <elf-symbol name='device_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c8d479a'/>
+      <elf-symbol name='device_remove_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x119d293e'/>
+      <elf-symbol name='device_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff15d7a4'/>
+      <elf-symbol name='device_remove_file_self' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c6da9b7'/>
+      <elf-symbol name='device_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26d23177'/>
       <elf-symbol name='device_set_wakeup_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9708e35'/>
       <elf-symbol name='device_set_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9335c84a'/>
-      <elf-symbol name='device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9b63d9f'/>
+      <elf-symbol name='device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18799114'/>
       <elf-symbol name='device_wakeup_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f6e2b61'/>
       <elf-symbol name='device_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37662541'/>
       <elf-symbol name='devm_add_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfc65577'/>
@@ -970,9 +975,9 @@
       <elf-symbol name='devm_clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb653fedc'/>
       <elf-symbol name='devm_clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9cbd89b'/>
       <elf-symbol name='devm_devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd42634'/>
-      <elf-symbol name='devm_device_add_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4bbccb6'/>
-      <elf-symbol name='devm_device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbacf79a3'/>
-      <elf-symbol name='devm_device_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89905067'/>
+      <elf-symbol name='devm_device_add_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd21cbc2b'/>
+      <elf-symbol name='devm_device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57a718fc'/>
+      <elf-symbol name='devm_device_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0180cd9'/>
       <elf-symbol name='devm_drm_panel_bridge_add_typed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58b631d3'/>
       <elf-symbol name='devm_extcon_dev_allocate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa94b1073'/>
       <elf-symbol name='devm_extcon_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7f22760'/>
@@ -1458,7 +1463,7 @@
       <elf-symbol name='drm_writeback_signal_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac0371f'/>
       <elf-symbol name='drmm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a6fff5'/>
       <elf-symbol name='drmm_mode_config_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17d27791'/>
-      <elf-symbol name='dst_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ecde61'/>
+      <elf-symbol name='dst_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3192d5c'/>
       <elf-symbol name='dump_backtrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6f4a15f'/>
       <elf-symbol name='dump_stack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2dc060'/>
       <elf-symbol name='dup_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8f527d'/>
@@ -1475,16 +1480,16 @@
       <elf-symbol name='enable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcec0987'/>
       <elf-symbol name='enable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335c570f'/>
       <elf-symbol name='errno_to_blk_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x612bfd89'/>
-      <elf-symbol name='eth_commit_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb77a141'/>
-      <elf-symbol name='eth_mac_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd424df08'/>
-      <elf-symbol name='eth_platform_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x302d3a8c'/>
-      <elf-symbol name='eth_prepare_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x960d867d'/>
-      <elf-symbol name='eth_type_trans' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6bfa20e'/>
-      <elf-symbol name='eth_validate_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe895a32d'/>
-      <elf-symbol name='ether_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad03d385'/>
-      <elf-symbol name='ethtool_op_get_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf2e3eb8'/>
-      <elf-symbol name='ethtool_op_get_ts_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79d0e54f'/>
-      <elf-symbol name='ethtool_virtdev_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1de0572'/>
+      <elf-symbol name='eth_commit_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3afabe43'/>
+      <elf-symbol name='eth_mac_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68905c00'/>
+      <elf-symbol name='eth_platform_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80a0d575'/>
+      <elf-symbol name='eth_prepare_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d9c679c'/>
+      <elf-symbol name='eth_type_trans' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e07f1a2'/>
+      <elf-symbol name='eth_validate_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x405ea842'/>
+      <elf-symbol name='ether_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x116e1ef4'/>
+      <elf-symbol name='ethtool_op_get_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedeec2a'/>
+      <elf-symbol name='ethtool_op_get_ts_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcb72d25'/>
+      <elf-symbol name='ethtool_virtdev_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2a0818f'/>
       <elf-symbol name='event_triggers_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d770c8a'/>
       <elf-symbol name='eventfd_ctx_fdget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd67364f7'/>
       <elf-symbol name='eventfd_ctx_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x941f2aaa'/>
@@ -1498,18 +1503,18 @@
       <elf-symbol name='extcon_set_state_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bf5c4bc'/>
       <elf-symbol name='extcon_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a7652e4'/>
       <elf-symbol name='fasync_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad4095b'/>
-      <elf-symbol name='fd_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0585911'/>
-      <elf-symbol name='fget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4926c9f7'/>
+      <elf-symbol name='fd_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880c788e'/>
+      <elf-symbol name='fget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a24bb7'/>
       <elf-symbol name='file_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58ef6e4f'/>
       <elf-symbol name='filp_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18603e77'/>
       <elf-symbol name='filp_open_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fa7cdb4'/>
       <elf-symbol name='find_extend_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa97ac25c'/>
-      <elf-symbol name='find_get_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62f521f2'/>
+      <elf-symbol name='find_get_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x967ea74'/>
       <elf-symbol name='find_last_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a68816'/>
       <elf-symbol name='find_next_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3d105'/>
       <elf-symbol name='find_next_zero_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479c3c86'/>
-      <elf-symbol name='find_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25687428'/>
-      <elf-symbol name='find_task_by_vpid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b706beb'/>
+      <elf-symbol name='find_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5561a3eb'/>
+      <elf-symbol name='find_task_by_vpid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbd5a1ce'/>
       <elf-symbol name='find_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71bcaf53'/>
       <elf-symbol name='finish_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92540fbf'/>
       <elf-symbol name='firmware_request_nowarn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73cfdc4d'/>
@@ -1521,10 +1526,10 @@
       <elf-symbol name='frame_vector_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65246b8'/>
       <elf-symbol name='frame_vector_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d5f9555'/>
       <elf-symbol name='frame_vector_to_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5e5573a'/>
-      <elf-symbol name='free_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x412f689d'/>
+      <elf-symbol name='free_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bb82a82'/>
       <elf-symbol name='free_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e5c5bed'/>
       <elf-symbol name='free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1514a3b'/>
-      <elf-symbol name='free_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x607ba3bc'/>
+      <elf-symbol name='free_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8b1f0ec'/>
       <elf-symbol name='free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4302d0eb'/>
       <elf-symbol name='free_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb44339a'/>
       <elf-symbol name='free_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9ec4e21'/>
@@ -1533,16 +1538,16 @@
       <elf-symbol name='freq_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28498a88'/>
       <elf-symbol name='freq_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x894967be'/>
       <elf-symbol name='freq_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eec24ef'/>
-      <elf-symbol name='freq_reg_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab753be'/>
+      <elf-symbol name='freq_reg_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb35c2672'/>
       <elf-symbol name='fsync_bdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bde98ff'/>
       <elf-symbol name='full_name_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6eaaea1'/>
-      <elf-symbol name='fwnode_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7e76d8'/>
+      <elf-symbol name='fwnode_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26fdfaba'/>
       <elf-symbol name='fwnode_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8334dab'/>
-      <elf-symbol name='fwnode_handle_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78ade86d'/>
-      <elf-symbol name='fwnode_handle_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e67765f'/>
-      <elf-symbol name='fwnode_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dcad26'/>
-      <elf-symbol name='fwnode_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeca16cd'/>
-      <elf-symbol name='fwnode_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8707bda'/>
+      <elf-symbol name='fwnode_handle_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cefab1'/>
+      <elf-symbol name='fwnode_handle_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce791fe2'/>
+      <elf-symbol name='fwnode_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6cd8606'/>
+      <elf-symbol name='fwnode_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed5ec2f2'/>
+      <elf-symbol name='fwnode_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8771a1f'/>
       <elf-symbol name='gcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea124bd1'/>
       <elf-symbol name='gen_pool_add_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbefa51a3'/>
       <elf-symbol name='gen_pool_alloc_algo_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b593aa8'/>
@@ -1560,20 +1565,21 @@
       <elf-symbol name='generic_file_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x789dbc9e'/>
       <elf-symbol name='generic_handle_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ceaf0d5'/>
       <elf-symbol name='generic_iommu_put_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff00bb3d'/>
-      <elf-symbol name='generic_mii_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc09306'/>
-      <elf-symbol name='genl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76002ad4'/>
-      <elf-symbol name='genl_register_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe838afcf'/>
-      <elf-symbol name='genl_unregister_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b2ad6bd'/>
-      <elf-symbol name='genlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b2cd312'/>
+      <elf-symbol name='generic_mii_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a2a979b'/>
+      <elf-symbol name='genl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca8b57ee'/>
+      <elf-symbol name='genl_register_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73507374'/>
+      <elf-symbol name='genl_unregister_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe2ff3b'/>
+      <elf-symbol name='genlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9565a33'/>
       <elf-symbol name='get_cpu_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x804c202d'/>
       <elf-symbol name='get_cpu_idle_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fe899b7'/>
       <elf-symbol name='get_cpu_idle_time_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b9793a2'/>
       <elf-symbol name='get_cpu_iowait_time_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1234e483'/>
-      <elf-symbol name='get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5d5a9af'/>
+      <elf-symbol name='get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b309b91'/>
       <elf-symbol name='get_device_system_crosststamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb541311'/>
       <elf-symbol name='get_governor_parent_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15390382'/>
       <elf-symbol name='get_next_ino' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe953b21f'/>
-      <elf-symbol name='get_pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6758b2b6'/>
+      <elf-symbol name='get_pfnblock_flags_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11bfb49a'/>
+      <elf-symbol name='get_pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x741ea100'/>
       <elf-symbol name='get_random_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79aa04a2'/>
       <elf-symbol name='get_random_bytes_arch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d830297'/>
       <elf-symbol name='get_random_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36dc10c'/>
@@ -1582,9 +1588,9 @@
       <elf-symbol name='get_thermal_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaab3a2db'/>
       <elf-symbol name='get_tree_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c84477f'/>
       <elf-symbol name='get_unused_fd_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa843805a'/>
-      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5a53fc'/>
-      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9ff91e'/>
-      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ab0880a'/>
+      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4413fe2b'/>
+      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed8f5503'/>
+      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81def43a'/>
       <elf-symbol name='get_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58adb05c'/>
       <elf-symbol name='get_zeroed_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09b5d9a'/>
       <elf-symbol name='glob_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5009c71d'/>
@@ -1643,13 +1649,13 @@
       <elf-symbol name='handle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7647726c'/>
       <elf-symbol name='hashlen_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x162893fd'/>
       <elf-symbol name='have_governor_per_policy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47aad3b9'/>
-      <elf-symbol name='hci_alloc_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde0e5ec0'/>
-      <elf-symbol name='hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabb29f23'/>
-      <elf-symbol name='hci_free_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e36e568'/>
-      <elf-symbol name='hci_recv_diag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ed3041e'/>
-      <elf-symbol name='hci_recv_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x726da0c0'/>
-      <elf-symbol name='hci_register_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda24315d'/>
-      <elf-symbol name='hci_unregister_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a114790'/>
+      <elf-symbol name='hci_alloc_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33bec88c'/>
+      <elf-symbol name='hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3beac749'/>
+      <elf-symbol name='hci_free_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c289e'/>
+      <elf-symbol name='hci_recv_diag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe64ee1e4'/>
+      <elf-symbol name='hci_recv_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4280128d'/>
+      <elf-symbol name='hci_register_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e50e83e'/>
+      <elf-symbol name='hci_unregister_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb95aeb3c'/>
       <elf-symbol name='hdmi_audio_infoframe_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb14ab1ef'/>
       <elf-symbol name='hdmi_audio_infoframe_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29e1e204'/>
       <elf-symbol name='hdmi_avi_infoframe_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25e58a09'/>
@@ -1736,11 +1742,11 @@
       <elf-symbol name='idr_preload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x954f099c'/>
       <elf-symbol name='idr_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7665a95b'/>
       <elf-symbol name='idr_replace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b82b9a1'/>
-      <elf-symbol name='ieee80211_alloc_hw_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cc02e69'/>
-      <elf-symbol name='ieee80211_ap_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6046854'/>
+      <elf-symbol name='ieee80211_alloc_hw_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57b028c0'/>
+      <elf-symbol name='ieee80211_ap_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1282c4ec'/>
       <elf-symbol name='ieee80211_beacon_cntdwn_is_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe13a572f'/>
-      <elf-symbol name='ieee80211_beacon_get_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9f8aeb8'/>
-      <elf-symbol name='ieee80211_beacon_get_tim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f6828bd'/>
+      <elf-symbol name='ieee80211_beacon_get_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3757d4f0'/>
+      <elf-symbol name='ieee80211_beacon_get_tim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b29f0e'/>
       <elf-symbol name='ieee80211_beacon_loss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae563573'/>
       <elf-symbol name='ieee80211_beacon_update_cntdwn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a494b09'/>
       <elf-symbol name='ieee80211_bss_get_elem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7f4a43'/>
@@ -1751,70 +1757,70 @@
       <elf-symbol name='ieee80211_cqm_rssi_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf22289a'/>
       <elf-symbol name='ieee80211_csa_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8212dc1c'/>
       <elf-symbol name='ieee80211_find_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd72f22a'/>
-      <elf-symbol name='ieee80211_find_sta_by_ifaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a75293'/>
-      <elf-symbol name='ieee80211_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d05a3a3'/>
-      <elf-symbol name='ieee80211_free_txskb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fec4a66'/>
+      <elf-symbol name='ieee80211_find_sta_by_ifaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24bdc7de'/>
+      <elf-symbol name='ieee80211_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee5b500'/>
+      <elf-symbol name='ieee80211_free_txskb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea1b7c3d'/>
       <elf-symbol name='ieee80211_freq_khz_to_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bedf402'/>
-      <elf-symbol name='ieee80211_get_buffered_bc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1ae4d6c'/>
-      <elf-symbol name='ieee80211_get_channel_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f689184'/>
-      <elf-symbol name='ieee80211_get_hdrlen_from_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6508ce86'/>
-      <elf-symbol name='ieee80211_get_tx_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc35985a'/>
+      <elf-symbol name='ieee80211_get_buffered_bc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc528e1d4'/>
+      <elf-symbol name='ieee80211_get_channel_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7cda495'/>
+      <elf-symbol name='ieee80211_get_hdrlen_from_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3378f8'/>
+      <elf-symbol name='ieee80211_get_tx_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec5c38e'/>
       <elf-symbol name='ieee80211_hdrlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ef39823'/>
-      <elf-symbol name='ieee80211_iter_chan_contexts_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x516046a6'/>
-      <elf-symbol name='ieee80211_iterate_active_interfaces_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9095a783'/>
-      <elf-symbol name='ieee80211_iterate_interfaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5de6d553'/>
-      <elf-symbol name='ieee80211_iterate_stations_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8681597'/>
+      <elf-symbol name='ieee80211_iter_chan_contexts_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19ffd75'/>
+      <elf-symbol name='ieee80211_iterate_active_interfaces_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e206cdc'/>
+      <elf-symbol name='ieee80211_iterate_interfaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc53a1b70'/>
+      <elf-symbol name='ieee80211_iterate_stations_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5943b60c'/>
       <elf-symbol name='ieee80211_manage_rx_ba_offl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fe2d654'/>
-      <elf-symbol name='ieee80211_next_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da22342'/>
-      <elf-symbol name='ieee80211_nullfunc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d0389f'/>
-      <elf-symbol name='ieee80211_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf628bbb8'/>
-      <elf-symbol name='ieee80211_proberesp_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa803d3c0'/>
-      <elf-symbol name='ieee80211_pspoll_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf53014e8'/>
-      <elf-symbol name='ieee80211_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71fc25f'/>
-      <elf-symbol name='ieee80211_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3ea845'/>
-      <elf-symbol name='ieee80211_radar_detected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c445434'/>
-      <elf-symbol name='ieee80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85fdef2'/>
-      <elf-symbol name='ieee80211_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x478c48b8'/>
-      <elf-symbol name='ieee80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6d7c344'/>
+      <elf-symbol name='ieee80211_next_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ac96c9c'/>
+      <elf-symbol name='ieee80211_nullfunc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a77115e'/>
+      <elf-symbol name='ieee80211_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x437ac2e2'/>
+      <elf-symbol name='ieee80211_proberesp_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50571d51'/>
+      <elf-symbol name='ieee80211_pspoll_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x417767f5'/>
+      <elf-symbol name='ieee80211_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf357384'/>
+      <elf-symbol name='ieee80211_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98f83aca'/>
+      <elf-symbol name='ieee80211_radar_detected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc40d563'/>
+      <elf-symbol name='ieee80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2f43296'/>
+      <elf-symbol name='ieee80211_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c116517'/>
+      <elf-symbol name='ieee80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a31609'/>
       <elf-symbol name='ieee80211_report_low_ack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0112004'/>
-      <elf-symbol name='ieee80211_restart_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6771d44'/>
-      <elf-symbol name='ieee80211_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0222c38'/>
-      <elf-symbol name='ieee80211_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8369f525'/>
-      <elf-symbol name='ieee80211_scan_completed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3abf3a9b'/>
-      <elf-symbol name='ieee80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3ac2caa'/>
-      <elf-symbol name='ieee80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41b0b796'/>
+      <elf-symbol name='ieee80211_restart_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x876bbf94'/>
+      <elf-symbol name='ieee80211_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74ce8133'/>
+      <elf-symbol name='ieee80211_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc132bc17'/>
+      <elf-symbol name='ieee80211_scan_completed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf25c3cf9'/>
+      <elf-symbol name='ieee80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2e381bf'/>
+      <elf-symbol name='ieee80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5b8a40'/>
       <elf-symbol name='ieee80211_sta_ps_transition' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8688a755'/>
       <elf-symbol name='ieee80211_sta_register_airtime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb73ea975'/>
-      <elf-symbol name='ieee80211_stop_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41f59f2f'/>
-      <elf-symbol name='ieee80211_stop_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95c693a9'/>
+      <elf-symbol name='ieee80211_stop_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf26c2a7'/>
+      <elf-symbol name='ieee80211_stop_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa87252e7'/>
       <elf-symbol name='ieee80211_stop_rx_ba_session' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2460676'/>
       <elf-symbol name='ieee80211_stop_tx_ba_cb_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf780e33'/>
       <elf-symbol name='ieee80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf38a065'/>
-      <elf-symbol name='ieee80211_tx_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0798172'/>
-      <elf-symbol name='ieee80211_tx_prepare_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefb5b420'/>
-      <elf-symbol name='ieee80211_tx_rate_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26e2a433'/>
-      <elf-symbol name='ieee80211_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4866c846'/>
-      <elf-symbol name='ieee80211_tx_status_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa401f3b5'/>
+      <elf-symbol name='ieee80211_tx_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x543ef26f'/>
+      <elf-symbol name='ieee80211_tx_prepare_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0da137f'/>
+      <elf-symbol name='ieee80211_tx_rate_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53cc833f'/>
+      <elf-symbol name='ieee80211_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x721f9bc2'/>
+      <elf-symbol name='ieee80211_tx_status_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbff6f34d'/>
       <elf-symbol name='ieee80211_txq_get_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc98e08'/>
-      <elf-symbol name='ieee80211_txq_may_transmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb69d1db8'/>
-      <elf-symbol name='ieee80211_txq_schedule_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12028dee'/>
-      <elf-symbol name='ieee80211_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe94e040f'/>
-      <elf-symbol name='ieee80211_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8953c1a9'/>
-      <elf-symbol name='ieee80211_wake_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27523fcb'/>
-      <elf-symbol name='ieee802154_alloc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a7a2242'/>
-      <elf-symbol name='ieee802154_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd145fd9'/>
-      <elf-symbol name='ieee802154_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1bc20ef'/>
-      <elf-symbol name='ieee802154_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc07c1b'/>
-      <elf-symbol name='ieee802154_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853b997e'/>
-      <elf-symbol name='ieee802154_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6c405fb'/>
-      <elf-symbol name='ieee802154_xmit_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff79f5fb'/>
+      <elf-symbol name='ieee80211_txq_may_transmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c1e4bba'/>
+      <elf-symbol name='ieee80211_txq_schedule_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48eab6f1'/>
+      <elf-symbol name='ieee80211_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x541f9dc4'/>
+      <elf-symbol name='ieee80211_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe17bd412'/>
+      <elf-symbol name='ieee80211_wake_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2804f0f0'/>
+      <elf-symbol name='ieee802154_alloc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a764e76'/>
+      <elf-symbol name='ieee802154_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecb34a78'/>
+      <elf-symbol name='ieee802154_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe152d84c'/>
+      <elf-symbol name='ieee802154_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87d97a8a'/>
+      <elf-symbol name='ieee802154_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72c8a165'/>
+      <elf-symbol name='ieee802154_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e2d1370'/>
+      <elf-symbol name='ieee802154_xmit_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7687df6'/>
       <elf-symbol name='iio_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d5d937'/>
       <elf-symbol name='import_iovec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91152c75'/>
       <elf-symbol name='in6_pton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609bcd98'/>
       <elf-symbol name='in_aton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b6314fd'/>
       <elf-symbol name='in_egroup_p' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39461d6a'/>
       <elf-symbol name='inc_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a283be'/>
-      <elf-symbol name='init_dummy_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34b7898e'/>
+      <elf-symbol name='init_dummy_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc80e4b6d'/>
       <elf-symbol name='init_pseudo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ce4437'/>
       <elf-symbol name='init_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x910e6db5'/>
       <elf-symbol name='init_timer_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79cf5987'/>
@@ -1939,19 +1945,19 @@
       <elf-symbol name='kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb384d37'/>
       <elf-symbol name='kern_mount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97315e00'/>
       <elf-symbol name='kern_unmount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2e06d1e'/>
-      <elf-symbol name='kernel_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23706ccb'/>
-      <elf-symbol name='kernel_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc383fbe'/>
-      <elf-symbol name='kernel_getsockname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde95d74c'/>
+      <elf-symbol name='kernel_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaaf1d0e4'/>
+      <elf-symbol name='kernel_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0d85c02'/>
+      <elf-symbol name='kernel_getsockname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe06ee5f'/>
       <elf-symbol name='kernel_neon_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fd180e7'/>
       <elf-symbol name='kernel_neon_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8a8110c'/>
-      <elf-symbol name='kernel_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cfb287c'/>
+      <elf-symbol name='kernel_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9030ace'/>
       <elf-symbol name='kernel_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e7bbcb3'/>
-      <elf-symbol name='kernel_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8a69daa'/>
-      <elf-symbol name='kernel_sock_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb58a98af'/>
+      <elf-symbol name='kernel_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ed0da4'/>
+      <elf-symbol name='kernel_sock_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2b05492'/>
       <elf-symbol name='kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37a0cba'/>
       <elf-symbol name='kfree_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf474fdcb'/>
       <elf-symbol name='kfree_sensitive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0760fc0'/>
-      <elf-symbol name='kfree_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd2429f8'/>
+      <elf-symbol name='kfree_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c7e580'/>
       <elf-symbol name='kill_anon_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3f2a38a'/>
       <elf-symbol name='kill_fasync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b81611'/>
       <elf-symbol name='kill_litter_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94118467'/>
@@ -1973,8 +1979,8 @@
       <elf-symbol name='kobject_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a45081'/>
       <elf-symbol name='kobject_init_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x974e91f8'/>
       <elf-symbol name='kobject_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce54e2df'/>
-      <elf-symbol name='kobject_uevent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3431a7b'/>
-      <elf-symbol name='kobject_uevent_env' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffa6ca02'/>
+      <elf-symbol name='kobject_uevent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1652a466'/>
+      <elf-symbol name='kobject_uevent_env' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d1f4f5'/>
       <elf-symbol name='krealloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1e12d81'/>
       <elf-symbol name='ksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ea5d10'/>
       <elf-symbol name='kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d39b0a7'/>
@@ -2036,7 +2042,7 @@
       <elf-symbol name='led_trigger_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe30d40dd'/>
       <elf-symbol name='list_sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe091c977'/>
       <elf-symbol name='llist_add_batch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a1840e'/>
-      <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a5efa5'/>
+      <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ba60f8a'/>
       <elf-symbol name='log_abnormal_wakeup_reason' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d20fc95'/>
       <elf-symbol name='log_threaded_irq_wakeup_reason' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34e5628d'/>
       <elf-symbol name='lzo1x_1_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x787c882b'/>
@@ -2072,10 +2078,10 @@
       <elf-symbol name='memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e9fdd9d'/>
       <elf-symbol name='mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b70124'/>
       <elf-symbol name='mfd_remove_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864a5d7'/>
-      <elf-symbol name='mii_ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20758f8b'/>
-      <elf-symbol name='mii_ethtool_gset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9767205'/>
-      <elf-symbol name='mii_ethtool_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe58c8b'/>
-      <elf-symbol name='mii_nway_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bfa3fe9'/>
+      <elf-symbol name='mii_ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc17cae'/>
+      <elf-symbol name='mii_ethtool_gset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c5ffd6e'/>
+      <elf-symbol name='mii_ethtool_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b92bb22'/>
+      <elf-symbol name='mii_nway_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x460c5404'/>
       <elf-symbol name='mipi_dsi_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea215e5a'/>
       <elf-symbol name='mipi_dsi_compression_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6a832f5'/>
       <elf-symbol name='mipi_dsi_create_packet' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81ce66fa'/>
@@ -2161,48 +2167,48 @@
       <elf-symbol name='mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78c7940d'/>
       <elf-symbol name='mutex_trylock_recursive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ce057b'/>
       <elf-symbol name='mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8b268ae'/>
-      <elf-symbol name='napi_complete_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20004db4'/>
-      <elf-symbol name='napi_consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x905c3'/>
-      <elf-symbol name='napi_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd963607f'/>
-      <elf-symbol name='napi_gro_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0a9c670'/>
-      <elf-symbol name='napi_gro_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea5961ec'/>
-      <elf-symbol name='napi_schedule_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff8556b4'/>
+      <elf-symbol name='napi_complete_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7778a432'/>
+      <elf-symbol name='napi_consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x693b9d63'/>
+      <elf-symbol name='napi_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x780bbc13'/>
+      <elf-symbol name='napi_gro_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c6ef2'/>
+      <elf-symbol name='napi_gro_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97545999'/>
+      <elf-symbol name='napi_schedule_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8c480f'/>
       <elf-symbol name='net_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6ebc03b'/>
-      <elf-symbol name='netdev_change_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa32490d'/>
-      <elf-symbol name='netdev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe944aa8d'/>
+      <elf-symbol name='netdev_change_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83356af3'/>
+      <elf-symbol name='netdev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73c50e2b'/>
       <elf-symbol name='netdev_increment_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69668826'/>
-      <elf-symbol name='netdev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf09cae3'/>
-      <elf-symbol name='netdev_lower_state_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x867a515c'/>
-      <elf-symbol name='netdev_master_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dda9de3'/>
-      <elf-symbol name='netdev_notify_peers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7437a806'/>
-      <elf-symbol name='netdev_pick_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f0702e0'/>
-      <elf-symbol name='netdev_rx_handler_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7715bf'/>
-      <elf-symbol name='netdev_rx_handler_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86bc4f3'/>
-      <elf-symbol name='netdev_state_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb031b098'/>
-      <elf-symbol name='netdev_update_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ff76acb'/>
-      <elf-symbol name='netdev_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x246aab1b'/>
-      <elf-symbol name='netdev_upper_dev_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20164be5'/>
-      <elf-symbol name='netdev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe42dfcb9'/>
-      <elf-symbol name='netif_carrier_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a6f6a50'/>
-      <elf-symbol name='netif_carrier_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x947c337'/>
-      <elf-symbol name='netif_device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b829d9'/>
-      <elf-symbol name='netif_device_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f809972'/>
-      <elf-symbol name='netif_napi_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1561dc2'/>
-      <elf-symbol name='netif_receive_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9ed102b'/>
+      <elf-symbol name='netdev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadf6d01b'/>
+      <elf-symbol name='netdev_lower_state_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9e2860'/>
+      <elf-symbol name='netdev_master_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ea3ab36'/>
+      <elf-symbol name='netdev_notify_peers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47ac2a96'/>
+      <elf-symbol name='netdev_pick_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ae4bd81'/>
+      <elf-symbol name='netdev_rx_handler_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58e8c698'/>
+      <elf-symbol name='netdev_rx_handler_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3048afd7'/>
+      <elf-symbol name='netdev_state_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9813e1b'/>
+      <elf-symbol name='netdev_update_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ffcffa'/>
+      <elf-symbol name='netdev_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a5213dc'/>
+      <elf-symbol name='netdev_upper_dev_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb4b463f'/>
+      <elf-symbol name='netdev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4c1f69f'/>
+      <elf-symbol name='netif_carrier_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cfe8b67'/>
+      <elf-symbol name='netif_carrier_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2868923'/>
+      <elf-symbol name='netif_device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa90cadcc'/>
+      <elf-symbol name='netif_device_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f4e088'/>
+      <elf-symbol name='netif_napi_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e7b5ffe'/>
+      <elf-symbol name='netif_receive_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x909fbe86'/>
       <elf-symbol name='netif_receive_skb_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b8bf149'/>
-      <elf-symbol name='netif_rx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe571ff73'/>
-      <elf-symbol name='netif_rx_ni' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b75de6'/>
-      <elf-symbol name='netif_schedule_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f5f55f6'/>
-      <elf-symbol name='netif_set_real_num_rx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25357473'/>
-      <elf-symbol name='netif_set_real_num_tx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x239edfb8'/>
-      <elf-symbol name='netif_stacked_transfer_operstate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0398408'/>
-      <elf-symbol name='netif_tx_stop_all_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a1e69ed'/>
-      <elf-symbol name='netif_tx_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04ac924'/>
-      <elf-symbol name='netlink_broadcast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87c06272'/>
-      <elf-symbol name='netlink_has_listeners' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d8a6578'/>
-      <elf-symbol name='netlink_kernel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc2bc675'/>
+      <elf-symbol name='netif_rx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf05e7d27'/>
+      <elf-symbol name='netif_rx_ni' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf05f6574'/>
+      <elf-symbol name='netif_schedule_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x881ba0b1'/>
+      <elf-symbol name='netif_set_real_num_rx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b70b267'/>
+      <elf-symbol name='netif_set_real_num_tx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd88eb74e'/>
+      <elf-symbol name='netif_stacked_transfer_operstate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde46d163'/>
+      <elf-symbol name='netif_tx_stop_all_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd423589'/>
+      <elf-symbol name='netif_tx_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5fbfb30'/>
+      <elf-symbol name='netlink_broadcast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb8e12e'/>
+      <elf-symbol name='netlink_has_listeners' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fb5009a'/>
+      <elf-symbol name='netlink_kernel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced85350'/>
       <elf-symbol name='netlink_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa599bb2'/>
-      <elf-symbol name='netlink_unicast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aee3f29'/>
+      <elf-symbol name='netlink_unicast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8dd63e6'/>
       <elf-symbol name='netlink_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf54a8f7'/>
       <elf-symbol name='new_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x923010b5'/>
       <elf-symbol name='nf_conntrack_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a18c74'/>
@@ -2338,7 +2344,7 @@
       <elf-symbol name='of_thermal_is_trip_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a4eb5f1'/>
       <elf-symbol name='of_translate_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c4763e4'/>
       <elf-symbol name='of_usb_host_tpl_support' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe58719b1'/>
-      <elf-symbol name='open_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43c7ff08'/>
+      <elf-symbol name='open_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab8f519'/>
       <elf-symbol name='out_of_line_wait_on_bit_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4071b517'/>
       <elf-symbol name='page_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec728214'/>
       <elf-symbol name='page_frag_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc306c3a8'/>
@@ -2351,7 +2357,7 @@
       <elf-symbol name='param_set_copystring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf41de0c6'/>
       <elf-symbol name='param_set_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48e725b3'/>
       <elf-symbol name='param_set_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb77a54'/>
-      <elf-symbol name='passthru_features_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5eb04d87'/>
+      <elf-symbol name='passthru_features_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc486d37'/>
       <elf-symbol name='pause_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1f3509f'/>
       <elf-symbol name='pci_alloc_irq_vectors_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd47c9dd6'/>
       <elf-symbol name='pci_assign_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5d1de0b'/>
@@ -2418,21 +2424,21 @@
       <elf-symbol name='perf_aux_output_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31a03dc1'/>
       <elf-symbol name='perf_aux_output_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f38d9e'/>
       <elf-symbol name='perf_aux_output_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2694940f'/>
-      <elf-symbol name='perf_event_addr_filters_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x129516bc'/>
-      <elf-symbol name='perf_event_create_kernel_counter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa00336e2'/>
-      <elf-symbol name='perf_event_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5941b48a'/>
-      <elf-symbol name='perf_event_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x873c41b4'/>
-      <elf-symbol name='perf_event_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffa5e74f'/>
-      <elf-symbol name='perf_event_read_local' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa912dc0d'/>
-      <elf-symbol name='perf_event_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd925ab5'/>
-      <elf-symbol name='perf_event_release_kernel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f7985b6'/>
-      <elf-symbol name='perf_event_update_userpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1f18c3e'/>
+      <elf-symbol name='perf_event_addr_filters_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c44d853'/>
+      <elf-symbol name='perf_event_create_kernel_counter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5e64022'/>
+      <elf-symbol name='perf_event_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13458d60'/>
+      <elf-symbol name='perf_event_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe20af356'/>
+      <elf-symbol name='perf_event_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d799eb0'/>
+      <elf-symbol name='perf_event_read_local' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3925c7d4'/>
+      <elf-symbol name='perf_event_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6d46b85'/>
+      <elf-symbol name='perf_event_release_kernel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9148a53a'/>
+      <elf-symbol name='perf_event_update_userpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1adffcf'/>
       <elf-symbol name='perf_get_aux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77eb63b'/>
-      <elf-symbol name='perf_pmu_migrate_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7567ca06'/>
-      <elf-symbol name='perf_pmu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94ce9be'/>
-      <elf-symbol name='perf_pmu_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4780a44'/>
+      <elf-symbol name='perf_pmu_migrate_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32e97227'/>
+      <elf-symbol name='perf_pmu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50a3b076'/>
+      <elf-symbol name='perf_pmu_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa6fe22b'/>
       <elf-symbol name='perf_trace_buf_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb8a6e1b'/>
-      <elf-symbol name='perf_trace_run_bpf_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61a1474e'/>
+      <elf-symbol name='perf_trace_run_bpf_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf225e92a'/>
       <elf-symbol name='pfn_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51e77c97'/>
       <elf-symbol name='phy_calibrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb65c2fd2'/>
       <elf-symbol name='phy_configure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b53d615'/>
@@ -2441,11 +2447,11 @@
       <elf-symbol name='phy_power_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22e9d1f5'/>
       <elf-symbol name='phy_power_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67665973'/>
       <elf-symbol name='phy_set_mode_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2176859d'/>
-      <elf-symbol name='pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x181b49d2'/>
+      <elf-symbol name='pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1d07b6a'/>
       <elf-symbol name='pin_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f47b30'/>
-      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3e55532'/>
-      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfb2b40a'/>
-      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35db23f0'/>
+      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf084c23b'/>
+      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52be154d'/>
+      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccbd8eea'/>
       <elf-symbol name='pinconf_generic_dt_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f84483f'/>
       <elf-symbol name='pinconf_generic_dt_node_to_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ed99bb2'/>
       <elf-symbol name='pinctrl_add_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93f9fca6'/>
@@ -2464,7 +2470,7 @@
       <elf-symbol name='pinctrl_utils_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e79fadb'/>
       <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1cf7fcf'/>
       <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf4d722d'/>
-      <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0113e4f'/>
+      <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d58254f'/>
       <elf-symbol name='pkvm_iommu_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff696ab2'/>
       <elf-symbol name='pkvm_iommu_s2mpu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d486258'/>
       <elf-symbol name='pkvm_iommu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2554db42'/>
@@ -2536,8 +2542,8 @@
       <elf-symbol name='proc_mkdir_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadbfc412'/>
       <elf-symbol name='proc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeffe481b'/>
       <elf-symbol name='proc_set_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d54f8f7'/>
-      <elf-symbol name='proto_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45fc1eb4'/>
-      <elf-symbol name='proto_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3febb60e'/>
+      <elf-symbol name='proto_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c27d7ec'/>
+      <elf-symbol name='proto_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e7f80c2'/>
       <elf-symbol name='ps2_begin_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e280db6'/>
       <elf-symbol name='ps2_cmd_aborted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2480b9d'/>
       <elf-symbol name='ps2_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8101ce02'/>
@@ -2548,10 +2554,10 @@
       <elf-symbol name='ps2_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237eb0b0'/>
       <elf-symbol name='ps2_sendbyte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ddc0e52'/>
       <elf-symbol name='ps2_sliced_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a21696f'/>
-      <elf-symbol name='pskb_expand_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73f8c5b9'/>
-      <elf-symbol name='put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67cc7b3'/>
+      <elf-symbol name='pskb_expand_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71db7378'/>
+      <elf-symbol name='put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28a72d6a'/>
       <elf-symbol name='put_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x338f5828'/>
-      <elf-symbol name='put_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x347bc154'/>
+      <elf-symbol name='put_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f96ea55'/>
       <elf-symbol name='put_sg_io_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec4aee6'/>
       <elf-symbol name='put_unused_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f4547a7'/>
       <elf-symbol name='put_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b700d37'/>
@@ -2596,7 +2602,7 @@
       <elf-symbol name='regcache_mark_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8583d27'/>
       <elf-symbol name='regcache_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe131dfb5'/>
       <elf-symbol name='register_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a50dbc'/>
-      <elf-symbol name='register_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb94ed27a'/>
+      <elf-symbol name='register_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9090ba'/>
       <elf-symbol name='register_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd78f3b'/>
       <elf-symbol name='register_console' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35087890'/>
       <elf-symbol name='register_die_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6261484'/>
@@ -2604,13 +2610,13 @@
       <elf-symbol name='register_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60352082'/>
       <elf-symbol name='register_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf68285c0'/>
       <elf-symbol name='register_kernel_break_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf42b9584'/>
-      <elf-symbol name='register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a0ffec4'/>
-      <elf-symbol name='register_netdevice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6e74fa1'/>
+      <elf-symbol name='register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12e336f6'/>
+      <elf-symbol name='register_netdevice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x674f47e4'/>
       <elf-symbol name='register_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2da1048'/>
       <elf-symbol name='register_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4761f17c'/>
       <elf-symbol name='register_oom_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x622c7922'/>
-      <elf-symbol name='register_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4428aa54'/>
-      <elf-symbol name='register_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd38f80e8'/>
+      <elf-symbol name='register_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfca0ca68'/>
+      <elf-symbol name='register_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bf2c553'/>
       <elf-symbol name='register_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cc4f70a'/>
       <elf-symbol name='register_reboot_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3517383e'/>
       <elf-symbol name='register_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d8fd16'/>
@@ -2668,11 +2674,11 @@
       <elf-symbol name='regulator_set_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a20112c'/>
       <elf-symbol name='regulator_set_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f883c2a'/>
       <elf-symbol name='regulator_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2146908'/>
-      <elf-symbol name='regulatory_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfef0ebd'/>
-      <elf-symbol name='regulatory_set_wiphy_regd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc41efa44'/>
-      <elf-symbol name='regulatory_set_wiphy_regd_sync_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31336bc9'/>
+      <elf-symbol name='regulatory_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x854c95e'/>
+      <elf-symbol name='regulatory_set_wiphy_regd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec9cde3'/>
+      <elf-symbol name='regulatory_set_wiphy_regd_sync_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1eb21c36'/>
       <elf-symbol name='release_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6d09aa9'/>
-      <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28ce116a'/>
+      <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20c82de7'/>
       <elf-symbol name='remap_pfn_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef15865'/>
       <elf-symbol name='remap_vmalloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97b9765e'/>
       <elf-symbol name='remove_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad4e6259'/>
@@ -2700,7 +2706,7 @@
       <elf-symbol name='rhashtable_insert_slow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe086059f'/>
       <elf-symbol name='rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f990e9'/>
       <elf-symbol name='rht_bucket_nested_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9920ae2a'/>
-      <elf-symbol name='root_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d9bb712'/>
+      <elf-symbol name='root_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c94a893'/>
       <elf-symbol name='round_jiffies_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50fad434'/>
       <elf-symbol name='rpmsg_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x879a24ae'/>
       <elf-symbol name='rpmsg_send' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b04d9fb'/>
@@ -2731,8 +2737,8 @@
       <elf-symbol name='rtc_valid_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5838f6c9'/>
       <elf-symbol name='rtc_year_days' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4859b8bb'/>
       <elf-symbol name='rtnl_is_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85670f1d'/>
-      <elf-symbol name='rtnl_link_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba8b1c0'/>
-      <elf-symbol name='rtnl_link_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e908bf4'/>
+      <elf-symbol name='rtnl_link_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x935d9230'/>
+      <elf-symbol name='rtnl_link_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71cef9c6'/>
       <elf-symbol name='rtnl_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a4fbed'/>
       <elf-symbol name='rtnl_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4f14de6'/>
       <elf-symbol name='rtnl_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e720ff2'/>
@@ -2881,41 +2887,41 @@
       <elf-symbol name='single_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eae4d4a'/>
       <elf-symbol name='single_open_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9bfad79'/>
       <elf-symbol name='single_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4289b376'/>
-      <elf-symbol name='sk_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9f1807d'/>
-      <elf-symbol name='sk_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1168a58f'/>
-      <elf-symbol name='skb_add_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3488c6fc'/>
-      <elf-symbol name='skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x313b34c6'/>
-      <elf-symbol name='skb_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5e564a'/>
-      <elf-symbol name='skb_coalesce_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85fb05e6'/>
-      <elf-symbol name='skb_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x654d2d21'/>
-      <elf-symbol name='skb_copy_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64dac6cd'/>
-      <elf-symbol name='skb_copy_datagram_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55e5be4a'/>
-      <elf-symbol name='skb_copy_expand' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc61ab3f'/>
-      <elf-symbol name='skb_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee77b576'/>
-      <elf-symbol name='skb_dequeue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb6e6e79'/>
-      <elf-symbol name='skb_free_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c362f68'/>
-      <elf-symbol name='skb_page_frag_refill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d1bb9b0'/>
-      <elf-symbol name='skb_partial_csum_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacd56497'/>
-      <elf-symbol name='skb_pull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cc6f633'/>
-      <elf-symbol name='skb_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dfc3435'/>
-      <elf-symbol name='skb_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x304994d'/>
-      <elf-symbol name='skb_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa733531b'/>
-      <elf-symbol name='skb_queue_purge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e4de333'/>
-      <elf-symbol name='skb_queue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefc47e34'/>
-      <elf-symbol name='skb_realloc_headroom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fb763a9'/>
-      <elf-symbol name='skb_recv_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x422e50ea'/>
-      <elf-symbol name='skb_set_owner_w' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c502685'/>
-      <elf-symbol name='skb_store_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x812045e4'/>
-      <elf-symbol name='skb_to_sgvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a979142'/>
-      <elf-symbol name='skb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0fc770b'/>
-      <elf-symbol name='skb_tstamp_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x355f8b9e'/>
-      <elf-symbol name='skb_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda079344'/>
-      <elf-symbol name='skcipher_alloc_instance_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59d006b8'/>
-      <elf-symbol name='skcipher_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3de94d03'/>
-      <elf-symbol name='skcipher_walk_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f774821'/>
-      <elf-symbol name='skcipher_walk_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf63ea406'/>
-      <elf-symbol name='skcipher_walk_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4489d56d'/>
-      <elf-symbol name='skcipher_walk_virt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5276c19'/>
+      <elf-symbol name='sk_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a0e9eee'/>
+      <elf-symbol name='sk_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeef51b7'/>
+      <elf-symbol name='skb_add_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c24e5f3'/>
+      <elf-symbol name='skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23df7243'/>
+      <elf-symbol name='skb_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7425598'/>
+      <elf-symbol name='skb_coalesce_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75e835cd'/>
+      <elf-symbol name='skb_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa95131ef'/>
+      <elf-symbol name='skb_copy_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd587778c'/>
+      <elf-symbol name='skb_copy_datagram_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5b85675'/>
+      <elf-symbol name='skb_copy_expand' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab79529'/>
+      <elf-symbol name='skb_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40422cd1'/>
+      <elf-symbol name='skb_dequeue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb0535cd'/>
+      <elf-symbol name='skb_free_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4df2809'/>
+      <elf-symbol name='skb_page_frag_refill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ae31950'/>
+      <elf-symbol name='skb_partial_csum_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd396ce'/>
+      <elf-symbol name='skb_pull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27386fea'/>
+      <elf-symbol name='skb_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cbe9f5e'/>
+      <elf-symbol name='skb_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f730d6a'/>
+      <elf-symbol name='skb_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x187e18f1'/>
+      <elf-symbol name='skb_queue_purge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0599129'/>
+      <elf-symbol name='skb_queue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb37dcf2e'/>
+      <elf-symbol name='skb_realloc_headroom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7cbc3fb'/>
+      <elf-symbol name='skb_recv_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15c41664'/>
+      <elf-symbol name='skb_set_owner_w' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09a703d'/>
+      <elf-symbol name='skb_store_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76b1baae'/>
+      <elf-symbol name='skb_to_sgvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf511b23f'/>
+      <elf-symbol name='skb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68926053'/>
+      <elf-symbol name='skb_tstamp_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x145a44f6'/>
+      <elf-symbol name='skb_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc8d1ab8'/>
+      <elf-symbol name='skcipher_alloc_instance_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09f11a3'/>
+      <elf-symbol name='skcipher_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcab9770c'/>
+      <elf-symbol name='skcipher_walk_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10198e03'/>
+      <elf-symbol name='skcipher_walk_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1bde2f0'/>
+      <elf-symbol name='skcipher_walk_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a286d62'/>
+      <elf-symbol name='skcipher_walk_virt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde84dc35'/>
       <elf-symbol name='skip_spaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a91bab'/>
       <elf-symbol name='smp_call_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0eae826'/>
       <elf-symbol name='smp_call_function_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6228c21f'/>
@@ -3053,25 +3059,25 @@
       <elf-symbol name='snprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656e4a6e'/>
       <elf-symbol name='soc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd7266a'/>
       <elf-symbol name='soc_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19c20269'/>
-      <elf-symbol name='sock_alloc_send_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x594fafcb'/>
-      <elf-symbol name='sock_create_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3559b27'/>
-      <elf-symbol name='sock_efree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5869565d'/>
-      <elf-symbol name='sock_gettstamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37fe361'/>
-      <elf-symbol name='sock_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe50a0b2f'/>
-      <elf-symbol name='sock_no_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad0c7b66'/>
-      <elf-symbol name='sock_no_listen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9726b3a3'/>
-      <elf-symbol name='sock_no_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a163f2'/>
-      <elf-symbol name='sock_no_sendpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bb80d58'/>
-      <elf-symbol name='sock_no_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8e8c443'/>
-      <elf-symbol name='sock_no_socketpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b096036'/>
-      <elf-symbol name='sock_queue_rcv_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa456e1f9'/>
-      <elf-symbol name='sock_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04587cd'/>
-      <elf-symbol name='sock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2398121c'/>
-      <elf-symbol name='sock_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5ed42a4'/>
-      <elf-symbol name='sock_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42081eef'/>
+      <elf-symbol name='sock_alloc_send_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x273c6d74'/>
+      <elf-symbol name='sock_create_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9065d7b'/>
+      <elf-symbol name='sock_efree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbde68ab0'/>
+      <elf-symbol name='sock_gettstamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd5249f2'/>
+      <elf-symbol name='sock_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa195755e'/>
+      <elf-symbol name='sock_no_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a5388f2'/>
+      <elf-symbol name='sock_no_listen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2599bd6'/>
+      <elf-symbol name='sock_no_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x917f57ee'/>
+      <elf-symbol name='sock_no_sendpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff83e621'/>
+      <elf-symbol name='sock_no_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e7b2581'/>
+      <elf-symbol name='sock_no_socketpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38b74f92'/>
+      <elf-symbol name='sock_queue_rcv_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95765df2'/>
+      <elf-symbol name='sock_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e3b1b8a'/>
+      <elf-symbol name='sock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7ba927e'/>
+      <elf-symbol name='sock_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dc15336'/>
+      <elf-symbol name='sock_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb7c853'/>
       <elf-symbol name='sock_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62737e1d'/>
-      <elf-symbol name='sock_wfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55b9e087'/>
-      <elf-symbol name='sockfd_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x371fc080'/>
+      <elf-symbol name='sock_wfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa8a9506'/>
+      <elf-symbol name='sockfd_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad3651e2'/>
       <elf-symbol name='sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c0f443'/>
       <elf-symbol name='spi_bus_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdaf9199'/>
       <elf-symbol name='spi_bus_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbdf09f0'/>
@@ -3168,7 +3174,7 @@
       <elf-symbol name='sysfs_streq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x222e7ce2'/>
       <elf-symbol name='sysfs_update_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x542fc9ce'/>
       <elf-symbol name='sysrq_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a17ed66'/>
-      <elf-symbol name='task_active_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99333af9'/>
+      <elf-symbol name='task_active_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b495251'/>
       <elf-symbol name='task_may_not_preempt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b731107'/>
       <elf-symbol name='task_rq_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c340'/>
       <elf-symbol name='tasklet_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2364c85a'/>
@@ -3257,7 +3263,7 @@
       <elf-symbol name='uart_update_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49ded97c'/>
       <elf-symbol name='uart_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd9d34df'/>
       <elf-symbol name='uclamp_eff_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d402716'/>
-      <elf-symbol name='udp4_hwcsum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90131ead'/>
+      <elf-symbol name='udp4_hwcsum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf88f9127'/>
       <elf-symbol name='ufshcd_bkops_ctrl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd920e320'/>
       <elf-symbol name='ufshcd_dme_configure_adapt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545d1738'/>
       <elf-symbol name='ufshcd_dme_get_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e39352e'/>
@@ -3286,21 +3292,21 @@
       <elf-symbol name='uio_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51bcc00'/>
       <elf-symbol name='unlock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfdf1a93'/>
       <elf-symbol name='unmap_mapping_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3037d1d'/>
-      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf607ac6b'/>
+      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5acba20b'/>
       <elf-symbol name='unregister_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5a459dc'/>
-      <elf-symbol name='unregister_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3434597'/>
+      <elf-symbol name='unregister_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a76434d'/>
       <elf-symbol name='unregister_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091b333'/>
       <elf-symbol name='unregister_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabdccf3'/>
       <elf-symbol name='unregister_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fe252cc'/>
       <elf-symbol name='unregister_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe029963'/>
-      <elf-symbol name='unregister_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5b966f2'/>
+      <elf-symbol name='unregister_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ebf6669'/>
       <elf-symbol name='unregister_netdevice_many' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fdecc31'/>
       <elf-symbol name='unregister_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0d6206'/>
-      <elf-symbol name='unregister_netdevice_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62103836'/>
+      <elf-symbol name='unregister_netdevice_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefa9a4c0'/>
       <elf-symbol name='unregister_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe1eddf'/>
       <elf-symbol name='unregister_oom_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc617f82c'/>
-      <elf-symbol name='unregister_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf79a6'/>
-      <elf-symbol name='unregister_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a8531a'/>
+      <elf-symbol name='unregister_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74492d9d'/>
+      <elf-symbol name='unregister_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31b22a6'/>
       <elf-symbol name='unregister_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7681946c'/>
       <elf-symbol name='unregister_reboot_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac1a55be'/>
       <elf-symbol name='unregister_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d59096'/>
@@ -3400,27 +3406,27 @@
       <elf-symbol name='usb_submit_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa17db968'/>
       <elf-symbol name='usb_unanchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x972f7566'/>
       <elf-symbol name='usb_unregister_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811dc334'/>
-      <elf-symbol name='usbnet_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5afad7eb'/>
-      <elf-symbol name='usbnet_get_endpoints' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2d79b62'/>
-      <elf-symbol name='usbnet_get_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x455b7595'/>
-      <elf-symbol name='usbnet_get_stats64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75948999'/>
-      <elf-symbol name='usbnet_link_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160fce3b'/>
-      <elf-symbol name='usbnet_nway_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37096042'/>
-      <elf-symbol name='usbnet_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88d250e0'/>
-      <elf-symbol name='usbnet_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbc60e7c'/>
-      <elf-symbol name='usbnet_read_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf001db5'/>
-      <elf-symbol name='usbnet_read_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2808b945'/>
-      <elf-symbol name='usbnet_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebde46be'/>
-      <elf-symbol name='usbnet_set_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fed2f1a'/>
-      <elf-symbol name='usbnet_skb_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x118cb8dc'/>
-      <elf-symbol name='usbnet_start_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97118398'/>
-      <elf-symbol name='usbnet_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a7ced7'/>
-      <elf-symbol name='usbnet_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6458ffad'/>
-      <elf-symbol name='usbnet_tx_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5292f49a'/>
-      <elf-symbol name='usbnet_update_max_qlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dcb800b'/>
-      <elf-symbol name='usbnet_write_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd4bd7f1'/>
-      <elf-symbol name='usbnet_write_cmd_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb99981f7'/>
-      <elf-symbol name='usbnet_write_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4b5a865'/>
+      <elf-symbol name='usbnet_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a6f3b26'/>
+      <elf-symbol name='usbnet_get_endpoints' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4a0d4e7'/>
+      <elf-symbol name='usbnet_get_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af7a9f4'/>
+      <elf-symbol name='usbnet_get_stats64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf619e32'/>
+      <elf-symbol name='usbnet_link_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4c4db68'/>
+      <elf-symbol name='usbnet_nway_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8e4d0b0'/>
+      <elf-symbol name='usbnet_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a4a03b1'/>
+      <elf-symbol name='usbnet_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf312a7a'/>
+      <elf-symbol name='usbnet_read_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d91097'/>
+      <elf-symbol name='usbnet_read_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa22ebef'/>
+      <elf-symbol name='usbnet_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x742892d5'/>
+      <elf-symbol name='usbnet_set_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd56b61'/>
+      <elf-symbol name='usbnet_skb_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17292e23'/>
+      <elf-symbol name='usbnet_start_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb35916a6'/>
+      <elf-symbol name='usbnet_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc086bc1a'/>
+      <elf-symbol name='usbnet_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eb7e670'/>
+      <elf-symbol name='usbnet_tx_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39a0f97c'/>
+      <elf-symbol name='usbnet_update_max_qlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4b31e3b'/>
+      <elf-symbol name='usbnet_write_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x131f31c5'/>
+      <elf-symbol name='usbnet_write_cmd_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a5acb5d'/>
+      <elf-symbol name='usbnet_write_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c2d58b6'/>
       <elf-symbol name='usleep_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a38747'/>
       <elf-symbol name='uuid_gen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69e683de'/>
       <elf-symbol name='v4l2_ctrl_handler_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9609b6ee'/>
@@ -3502,36 +3508,36 @@
       <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f7a054f'/>
       <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc712be6f'/>
       <elf-symbol name='virtio_max_dma_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9fa287'/>
-      <elf-symbol name='virtio_transport_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf53835e'/>
-      <elf-symbol name='virtio_transport_deliver_tap_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd85f3ac2'/>
-      <elf-symbol name='virtio_transport_destruct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd749a09'/>
+      <elf-symbol name='virtio_transport_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf56f400'/>
+      <elf-symbol name='virtio_transport_deliver_tap_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cacc28a'/>
+      <elf-symbol name='virtio_transport_destruct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40113435'/>
       <elf-symbol name='virtio_transport_dgram_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbabd30f5'/>
-      <elf-symbol name='virtio_transport_dgram_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf58ba2e4'/>
-      <elf-symbol name='virtio_transport_dgram_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x183a0c8f'/>
-      <elf-symbol name='virtio_transport_dgram_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd59370bb'/>
-      <elf-symbol name='virtio_transport_do_socket_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4514ba2'/>
-      <elf-symbol name='virtio_transport_free_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95fcca19'/>
-      <elf-symbol name='virtio_transport_notify_buffer_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bad4245'/>
-      <elf-symbol name='virtio_transport_notify_poll_in' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69db5bd6'/>
-      <elf-symbol name='virtio_transport_notify_poll_out' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53b147c8'/>
-      <elf-symbol name='virtio_transport_notify_recv_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ed6f8a'/>
-      <elf-symbol name='virtio_transport_notify_recv_post_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85968377'/>
-      <elf-symbol name='virtio_transport_notify_recv_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x652457bb'/>
-      <elf-symbol name='virtio_transport_notify_recv_pre_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9efff1b'/>
-      <elf-symbol name='virtio_transport_notify_send_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x647bac1b'/>
-      <elf-symbol name='virtio_transport_notify_send_post_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2272392'/>
-      <elf-symbol name='virtio_transport_notify_send_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x965f9670'/>
-      <elf-symbol name='virtio_transport_notify_send_pre_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd901de36'/>
-      <elf-symbol name='virtio_transport_recv_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97896b02'/>
-      <elf-symbol name='virtio_transport_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4c7a653'/>
-      <elf-symbol name='virtio_transport_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe338c100'/>
+      <elf-symbol name='virtio_transport_dgram_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbe781ce'/>
+      <elf-symbol name='virtio_transport_dgram_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdaa70748'/>
+      <elf-symbol name='virtio_transport_dgram_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d091b09'/>
+      <elf-symbol name='virtio_transport_do_socket_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88af1184'/>
+      <elf-symbol name='virtio_transport_free_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecced2b3'/>
+      <elf-symbol name='virtio_transport_notify_buffer_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3200796a'/>
+      <elf-symbol name='virtio_transport_notify_poll_in' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2912103'/>
+      <elf-symbol name='virtio_transport_notify_poll_out' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x323b8ff2'/>
+      <elf-symbol name='virtio_transport_notify_recv_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11e95af7'/>
+      <elf-symbol name='virtio_transport_notify_recv_post_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15fb7f4d'/>
+      <elf-symbol name='virtio_transport_notify_recv_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b47c5cc'/>
+      <elf-symbol name='virtio_transport_notify_recv_pre_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c99a2c6'/>
+      <elf-symbol name='virtio_transport_notify_send_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82d0afae'/>
+      <elf-symbol name='virtio_transport_notify_send_post_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70570b00'/>
+      <elf-symbol name='virtio_transport_notify_send_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54d9446'/>
+      <elf-symbol name='virtio_transport_notify_send_pre_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88fb6239'/>
+      <elf-symbol name='virtio_transport_recv_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cf47ddd'/>
+      <elf-symbol name='virtio_transport_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc44d1d11'/>
+      <elf-symbol name='virtio_transport_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26942b34'/>
       <elf-symbol name='virtio_transport_stream_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a81e69'/>
-      <elf-symbol name='virtio_transport_stream_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b5b365a'/>
-      <elf-symbol name='virtio_transport_stream_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf91e30'/>
-      <elf-symbol name='virtio_transport_stream_has_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60cff3c2'/>
-      <elf-symbol name='virtio_transport_stream_has_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf07627be'/>
-      <elf-symbol name='virtio_transport_stream_is_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cf70997'/>
-      <elf-symbol name='virtio_transport_stream_rcvhiwat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e1982ac'/>
+      <elf-symbol name='virtio_transport_stream_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2219aad'/>
+      <elf-symbol name='virtio_transport_stream_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a666a54'/>
+      <elf-symbol name='virtio_transport_stream_has_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3807f6c0'/>
+      <elf-symbol name='virtio_transport_stream_has_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f6321c0'/>
+      <elf-symbol name='virtio_transport_stream_is_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77863f09'/>
+      <elf-symbol name='virtio_transport_stream_rcvhiwat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2df8a2af'/>
       <elf-symbol name='virtqueue_add_inbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35643838'/>
       <elf-symbol name='virtqueue_add_inbuf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cc783ba'/>
       <elf-symbol name='virtqueue_add_outbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18349308'/>
@@ -3552,11 +3558,11 @@
       <elf-symbol name='virtqueue_kick_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x647c058a'/>
       <elf-symbol name='virtqueue_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5457d2dc'/>
       <elf-symbol name='virtqueue_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8b7ec98'/>
-      <elf-symbol name='vlan_uses_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5581068'/>
-      <elf-symbol name='vlan_vid_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc781f093'/>
-      <elf-symbol name='vlan_vid_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafdd890'/>
-      <elf-symbol name='vlan_vids_add_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe04f0c98'/>
-      <elf-symbol name='vlan_vids_del_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x245cae5c'/>
+      <elf-symbol name='vlan_uses_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81eeb993'/>
+      <elf-symbol name='vlan_vid_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fbb6189'/>
+      <elf-symbol name='vlan_vid_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b9357f'/>
+      <elf-symbol name='vlan_vids_add_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee5064'/>
+      <elf-symbol name='vlan_vids_del_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9be428c'/>
       <elf-symbol name='vm_get_page_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c91e17c'/>
       <elf-symbol name='vm_iomap_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2e3b3af'/>
       <elf-symbol name='vm_map_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9232b7'/>
@@ -3579,9 +3585,9 @@
       <elf-symbol name='vring_transport_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36f38c31'/>
       <elf-symbol name='vscnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa0c318b'/>
       <elf-symbol name='vsnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148653'/>
-      <elf-symbol name='vsock_core_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fece0cb'/>
-      <elf-symbol name='vsock_core_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf25a6f87'/>
-      <elf-symbol name='vsock_for_each_connected_socket' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x420e2f63'/>
+      <elf-symbol name='vsock_core_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43fd0596'/>
+      <elf-symbol name='vsock_core_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b95de27'/>
+      <elf-symbol name='vsock_for_each_connected_socket' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4940d84'/>
       <elf-symbol name='vsscanf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50d035c2'/>
       <elf-symbol name='vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94961283'/>
       <elf-symbol name='vzalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40a9b349'/>
@@ -3605,15 +3611,15 @@
       <elf-symbol name='watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d8914a'/>
       <elf-symbol name='watchdog_set_restart_priority' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63132125'/>
       <elf-symbol name='watchdog_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91bf1765'/>
-      <elf-symbol name='wiphy_apply_custom_regulatory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aa8f50b'/>
-      <elf-symbol name='wiphy_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e523e6b'/>
-      <elf-symbol name='wiphy_new_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57890435'/>
-      <elf-symbol name='wiphy_read_of_freq_limits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1bcf9c'/>
-      <elf-symbol name='wiphy_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x833d5421'/>
-      <elf-symbol name='wiphy_rfkill_set_hw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbab2b152'/>
-      <elf-symbol name='wiphy_to_ieee80211_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x544ea8cd'/>
-      <elf-symbol name='wiphy_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff32ffd6'/>
-      <elf-symbol name='wireless_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ded33b0'/>
+      <elf-symbol name='wiphy_apply_custom_regulatory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdba9b83a'/>
+      <elf-symbol name='wiphy_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x410e75c2'/>
+      <elf-symbol name='wiphy_new_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b92a32d'/>
+      <elf-symbol name='wiphy_read_of_freq_limits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x398dc630'/>
+      <elf-symbol name='wiphy_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd322428e'/>
+      <elf-symbol name='wiphy_rfkill_set_hw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4960efae'/>
+      <elf-symbol name='wiphy_to_ieee80211_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb1097c5'/>
+      <elf-symbol name='wiphy_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf497a179'/>
+      <elf-symbol name='wireless_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce3d2dbc'/>
       <elf-symbol name='woken_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0654aba'/>
       <elf-symbol name='work_busy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86ab091d'/>
       <elf-symbol name='ww_mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c7ae3a2'/>
@@ -3627,17 +3633,17 @@
       <elf-symbol name='xa_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa85a3e6d'/>
       <elf-symbol name='xa_set_mark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9da0ba4'/>
       <elf-symbol name='xa_store' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b3e282f'/>
-      <elf-symbol name='xdp_convert_zc_to_xdp_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x508d1837'/>
+      <elf-symbol name='xdp_convert_zc_to_xdp_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cbd8b2c'/>
       <elf-symbol name='xdp_do_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9681621'/>
-      <elf-symbol name='xdp_do_redirect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf08b36f7'/>
-      <elf-symbol name='xdp_return_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe03ad8a5'/>
-      <elf-symbol name='xdp_return_frame_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa642f76b'/>
-      <elf-symbol name='xdp_rxq_info_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x201cf965'/>
-      <elf-symbol name='xdp_rxq_info_reg_mem_model' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9458573'/>
-      <elf-symbol name='xdp_rxq_info_unreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x200c6045'/>
+      <elf-symbol name='xdp_do_redirect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef86429e'/>
+      <elf-symbol name='xdp_return_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7be5e67'/>
+      <elf-symbol name='xdp_return_frame_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880714a8'/>
+      <elf-symbol name='xdp_rxq_info_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfc82a20'/>
+      <elf-symbol name='xdp_rxq_info_reg_mem_model' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6854de9'/>
+      <elf-symbol name='xdp_rxq_info_unreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f604761'/>
       <elf-symbol name='xdp_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb7195a5'/>
-      <elf-symbol name='xfrm_state_lookup_byspi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e25cbd2'/>
-      <elf-symbol name='xfrm_stateonly_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec1e5250'/>
+      <elf-symbol name='xfrm_state_lookup_byspi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45642e8f'/>
+      <elf-symbol name='xfrm_stateonly_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8480e406'/>
       <elf-symbol name='xhci_address_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x417d7452'/>
       <elf-symbol name='xhci_bus_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7a5a481'/>
       <elf-symbol name='xhci_bus_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10df6c9'/>
@@ -3694,6 +3700,7 @@
       <elf-symbol name='__tracepoint_android_rvh_ufs_complete_init' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x149dd525'/>
       <elf-symbol name='__tracepoint_android_rvh_ufs_reprogram_all_keys' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c77d76'/>
       <elf-symbol name='__tracepoint_android_rvh_util_est_update' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c941f9'/>
+      <elf-symbol name='__tracepoint_android_vh___get_user_pages_remote' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bfad40'/>
       <elf-symbol name='__tracepoint_android_vh_aes_decrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde5b1cc7'/>
       <elf-symbol name='__tracepoint_android_vh_aes_encrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10f648a3'/>
       <elf-symbol name='__tracepoint_android_vh_aes_expandkey' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7274615'/>
@@ -3705,12 +3712,15 @@
       <elf-symbol name='__tracepoint_android_vh_dup_task_struct' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14fff0cf'/>
       <elf-symbol name='__tracepoint_android_vh_enable_thermal_genl_check' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x901a2c7c'/>
       <elf-symbol name='__tracepoint_android_vh_ep_create_wakeup_source' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdd7bb80'/>
+      <elf-symbol name='__tracepoint_android_vh_get_user_pages' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bfaba4a'/>
+      <elf-symbol name='__tracepoint_android_vh_internal_get_user_pages_fast' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a7be1df'/>
       <elf-symbol name='__tracepoint_android_vh_ipi_stop' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8064d573'/>
       <elf-symbol name='__tracepoint_android_vh_meminfo_proc_show' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3a8654d'/>
       <elf-symbol name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf721b2a7'/>
       <elf-symbol name='__tracepoint_android_vh_mmc_blk_reset' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28c3f8b2'/>
       <elf-symbol name='__tracepoint_android_vh_of_i2c_get_board_info' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb3bfdc5'/>
       <elf-symbol name='__tracepoint_android_vh_pagecache_get_page' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcb3c40e'/>
+      <elf-symbol name='__tracepoint_android_vh_pin_user_pages' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10347bce'/>
       <elf-symbol name='__tracepoint_android_vh_rmqueue' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c074b9'/>
       <elf-symbol name='__tracepoint_android_vh_scheduler_tick' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3e74b24'/>
       <elf-symbol name='__tracepoint_android_vh_setscheduler_uclamp' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ae79b81'/>
@@ -3720,6 +3730,7 @@
       <elf-symbol name='__tracepoint_android_vh_sysrq_crash' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0fe057b'/>
       <elf-symbol name='__tracepoint_android_vh_thermal_pm_notify_suspend' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbacbda3'/>
       <elf-symbol name='__tracepoint_android_vh_timerfd_create' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7b47b4c'/>
+      <elf-symbol name='__tracepoint_android_vh_try_grab_compound_head' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c963ec5'/>
       <elf-symbol name='__tracepoint_android_vh_typec_store_partner_src_caps' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed5b195a'/>
       <elf-symbol name='__tracepoint_android_vh_typec_tcpci_override_toggling' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7021a827'/>
       <elf-symbol name='__tracepoint_android_vh_typec_tcpm_get_timer' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac9783b6'/>
@@ -3801,8 +3812,8 @@
       <elf-symbol name='i2c_adapter_type' size='48' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2112b56'/>
       <elf-symbol name='i2c_bus_type' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b2f735'/>
       <elf-symbol name='i2c_client_type' size='48' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe80a08e2'/>
-      <elf-symbol name='init_net' size='4672' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff22d13'/>
-      <elf-symbol name='init_pid_ns' size='136' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31a2d4d4'/>
+      <elf-symbol name='init_net' size='4672' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59ca894'/>
+      <elf-symbol name='init_pid_ns' size='136' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ee0d04c'/>
       <elf-symbol name='init_task' size='4736' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x124472e1'/>
       <elf-symbol name='init_uts_ns' size='440' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x442f2b95'/>
       <elf-symbol name='iomem_resource' size='96' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7da062f'/>
@@ -3853,7 +3864,7 @@
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       <elf-symbol name='snd_pcm_std_chmaps' size='96' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e1b99f'/>
       <elf-symbol name='snd_soc_pm_ops' size='192' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad5593dc'/>
-      <elf-symbol name='softnet_data' size='704' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f45ee4'/>
+      <elf-symbol name='softnet_data' size='704' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad33d222'/>
       <elf-symbol name='sys_tz' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe5d4bb2'/>
       <elf-symbol name='sysctl_sched_features' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84da85bb'/>
       <elf-symbol name='sysctl_sched_latency' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceee0cb7'/>
@@ -4276,7 +4287,7 @@
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         </data-member>
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-          <var-decl name='' type-id='ac5ab66f' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
+          <var-decl name='' type-id='ac5ab66e' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
         </data-member>
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           <var-decl name='private' type-id='eaa32e2f' visibility='default' filepath='include/sound/soc-topology.h' line='73' column='1'/>
@@ -4887,23 +4898,7 @@
         <return type-id='48b5725f'/>
       </function-type>
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-      <class-decl name='bpf_local_storage_map' size-in-bits='2560' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='42' column='1' id='03c3afa4'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='map' type-id='9e4acc7a' visibility='default' filepath='include/linux/bpf_local_storage.h' line='43' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='2048'>
-          <var-decl name='buckets' type-id='3bdbc3eb' visibility='default' filepath='include/linux/bpf_local_storage.h' line='50' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='2112'>
-          <var-decl name='bucket_log' type-id='19c2251e' visibility='default' filepath='include/linux/bpf_local_storage.h' line='51' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='2144'>
-          <var-decl name='elem_size' type-id='1dc6a898' visibility='default' filepath='include/linux/bpf_local_storage.h' line='52' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='2160'>
-          <var-decl name='cache_idx' type-id='1dc6a898' visibility='default' filepath='include/linux/bpf_local_storage.h' line='53' column='1'/>
-        </data-member>
-      </class-decl>
+      <class-decl name='bpf_local_storage_map' is-struct='yes' visibility='default' is-declaration-only='yes' id='03c3afa4'/>
       <function-type size-in-bits='64' id='03d219e2'>
         <parameter type-id='8cffa561'/>
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@@ -5927,14 +5922,6 @@
           <var-decl name='position' type-id='0d8415b5' visibility='default' filepath='include/net/mac80211.h' line='481' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='inet_bind_hashbucket' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='101' column='1' id='082b64be'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/net/inet_hashtables.h' line='102' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='chain' type-id='e151255a' visibility='default' filepath='include/net/inet_hashtables.h' line='103' column='1'/>
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       <function-type size-in-bits='64' id='0834640b'>
         <parameter type-id='af051c69'/>
         <parameter type-id='95e97e5e'/>
@@ -5942,11 +5929,6 @@
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       <pointer-type-def type-id='ae2eaa42' size-in-bits='64' id='0838a534'/>
-      <class-decl name='inet_ehash_bucket' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='38' column='1' id='08400b46'>
-        <data-member access='public' layout-offset-in-bits='0'>
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       <typedef-decl name='pm_message_t' type-id='c120b5da' filepath='include/linux/pm.h' line='53' column='1' id='08496218'/>
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@@ -13153,7 +13135,7 @@
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         </data-member>
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-          <var-decl name='u' type-id='ac5ab665' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
+          <var-decl name='u' type-id='ac5ab664' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='crypto_shash_spawn' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/crypto/internal/hash.h' line='58' column='1' id='1aafc68e'>
@@ -13553,6 +13535,7 @@
         <return type-id='48b5725f'/>
       </function-type>
       <pointer-type-def type-id='e613f28a' size-in-bits='64' id='1c33159c'/>
+      <class-decl name='macsec_ops' is-struct='yes' visibility='default' is-declaration-only='yes' id='1c4048ae'/>
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       <class-decl name='pci_sriov' size-in-bits='1280' is-struct='yes' visibility='default' filepath='drivers/pci/pci.h' line='324' column='1' id='1c590219'>
@@ -15578,7 +15561,7 @@
           <var-decl name='tx_time_est' type-id='19c2251e' visibility='default' filepath='include/net/mac80211.h' line='1056' column='1'/>
         </data-member>
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-          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
+          <var-decl name='' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
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@@ -17582,7 +17565,7 @@
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       <class-decl name='ieee80211_key_seq' size-in-bits='160' is-struct='yes' visibility='default' filepath='include/net/mac80211.h' line='1891' column='1' id='27ba2d9f'>
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-          <var-decl name='' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
+          <var-decl name='' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
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@@ -19312,7 +19295,6 @@
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-        </data-member>
-      </class-decl>
+      <class-decl name='bpf_local_storage' is-struct='yes' visibility='default' is-declaration-only='yes' id='ab3ad981'/>
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@@ -68987,15 +68914,7 @@
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-        <data-member access='public'>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65d'>
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@@ -69003,7 +68922,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65f'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65e'>
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@@ -69011,7 +68930,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab660'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab65f'>
         <data-member access='public'>
           <var-decl name='rssi' type-id='1569e170' visibility='default' filepath='include/net/mac80211.h' line='465' column='1'/>
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@@ -69022,7 +68941,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1' id='ac5ab660'>
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@@ -69042,7 +68961,7 @@
           <var-decl name='hw' type-id='e7f44029' visibility='default' filepath='include/net/mac80211.h' line='1912' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab661'>
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@@ -69062,7 +68981,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab662'>
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           <var-decl name='' type-id='e7f4402f' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1'/>
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@@ -69070,7 +68989,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab663'>
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@@ -69078,7 +68997,7 @@
           <var-decl name='adjust' type-id='5da08e25' visibility='default' filepath='include/net/cfg80211.h' line='2742' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='208' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1098' column='1' id='ac5ab664'>
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@@ -69119,7 +69038,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='200' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1159' column='1' id='ac5ab665'>
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@@ -69172,7 +69091,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/sound/control.h' line='71' column='1' id='ac5ab667'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/sound/control.h' line='71' column='1' id='ac5ab666'>
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@@ -69180,7 +69099,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1023' column='1' id='ac5ab667'>
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@@ -69194,24 +69113,24 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1049' column='1' id='ac5ab668'>
         <data-member access='public'>
-          <var-decl name='integer' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
+          <var-decl name='integer' type-id='ac5ab669' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
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-          <var-decl name='integer64' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
+          <var-decl name='integer64' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
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-          <var-decl name='enumerated' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
+          <var-decl name='enumerated' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
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         <data-member access='public'>
-          <var-decl name='bytes' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
+          <var-decl name='bytes' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1050' column='1' id='ac5ab669'>
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@@ -69219,7 +69138,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1054' column='1' id='ac5ab66a'>
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@@ -69227,7 +69146,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66b'>
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@@ -69235,7 +69154,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66c'>
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@@ -69243,7 +69162,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66d'>
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@@ -69251,7 +69170,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab66e'>
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@@ -69259,7 +69178,7 @@
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab670'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab66f'>
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@@ -69270,7 +69189,7 @@
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+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab670'>
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@@ -69278,7 +69197,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab671'>
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@@ -73341,14 +73260,6 @@
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@@ -84522,7 +84433,7 @@
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-          <var-decl name='param' type-id='ac5ab664' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
+          <var-decl name='param' type-id='ac5ab663' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
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@@ -85016,14 +84927,6 @@
           <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/usb/typec.h' line='219' column='1'/>
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@@ -87613,9 +87516,6 @@
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@@ -90143,7 +90043,6 @@
       <pointer-type-def type-id='92892da6' size-in-bits='64' id='dffc7428'/>
       <typedef-decl name='efi_time_t' type-id='d77b0fc0' filepath='include/linux/efi.h' line='193' column='1' id='dffd2b75'/>
       <pointer-type-def type-id='7f73c08c' size-in-bits='64' id='e003b5ce'/>
-      <pointer-type-def type-id='42b16dba' size-in-bits='64' id='e0087b68'/>
       <class-decl name='drm_crtc_funcs' size-in-bits='1536' is-struct='yes' visibility='default' filepath='include/drm/drm_crtc.h' line='409' column='1' id='e019c76b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='reset' type-id='a50616ee' visibility='default' filepath='include/drm/drm_crtc.h' line='420' column='1'/>
@@ -91256,7 +91155,7 @@
           <var-decl name='nhc_lwtstate' type-id='d19f4fca' visibility='default' filepath='include/net/ip_fib.h' line='87' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='nhc_gw' type-id='ac5ab65e' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
+          <var-decl name='nhc_gw' type-id='ac5ab65d' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
           <var-decl name='nhc_weight' type-id='95e97e5e' visibility='default' filepath='include/net/ip_fib.h' line='94' column='1'/>
@@ -91867,9 +91766,6 @@
       </function-type>
       <pointer-type-def type-id='9da0fa51' size-in-bits='64' id='e357ec39'/>
       <pointer-type-def type-id='c4e36342' size-in-bits='64' id='e36088ec'/>
-      <array-type-def dimensions='1' type-id='42b16dba' size-in-bits='4096' id='e3638da9'>
-        <subrange length='32' type-id='7ff19f0f' id='ae5bde82'/>
-      </array-type-def>
       <array-type-def dimensions='1' type-id='2f162548' size-in-bits='224' id='e369592a'>
         <subrange length='7' type-id='7ff19f0f' id='16fc326e'/>
       </array-type-def>
@@ -95736,7 +95632,7 @@
       </class-decl>
       <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1060' column='1' id='e7f4402b'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
+          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='vif' type-id='3a1577c5' visibility='default' filepath='include/net/mac80211.h' line='1077' column='1'/>
@@ -95975,7 +95871,7 @@
           <var-decl name='category' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1158' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='8'>
-          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
+          <var-decl name='u' type-id='ac5ab665' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403c'>
@@ -99407,7 +99303,7 @@
           <var-decl name='type' type-id='703e082c' visibility='default' filepath='include/net/mac80211.h' line='463' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='u' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
+          <var-decl name='u' type-id='ac5ab65f' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='b5d64367' size-in-bits='64' id='f08a800b'/>
@@ -104028,7 +103924,6 @@
           <var-decl name='perf_perm' type-id='7fa32aba' visibility='default' filepath='include/linux/trace_events.h' line='307' column='1'/>
         </data-member>
       </class-decl>
-      <pointer-type-def type-id='082b64be' size-in-bits='64' id='fd53db64'/>
       <pointer-type-def type-id='b36b391c' size-in-bits='64' id='fd780be6'/>
       <class-decl name='usb_ctrlrequest' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/uapi/linux/usb/ch9.h' line='213' column='1' id='fd7e7994'>
         <data-member access='public' layout-offset-in-bits='0'>
@@ -105006,35 +104901,7 @@
         <return type-id='95e97e5e'/>
       </function-type>
       <pointer-type-def type-id='f5362227' size-in-bits='64' id='ff70ae33'/>
-      <class-decl name='sock_reuseport' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/net/sock_reuseport.h' line='13' column='1' id='ff751355'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/net/sock_reuseport.h' line='14' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='max_socks' type-id='1dc6a898' visibility='default' filepath='include/net/sock_reuseport.h' line='16' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='144'>
-          <var-decl name='num_socks' type-id='1dc6a898' visibility='default' filepath='include/net/sock_reuseport.h' line='17' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='160'>
-          <var-decl name='synq_overflow_ts' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='21' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='reuseport_id' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='23' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='224'>
-          <var-decl name='bind_inany' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='24' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='225'>
-          <var-decl name='has_conns' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='25' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='prog' type-id='bdcee7ae' visibility='default' filepath='include/net/sock_reuseport.h' line='26' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='320'>
-          <var-decl name='socks' type-id='5be9db8d' visibility='default' filepath='include/net/sock_reuseport.h' line='27' column='1'/>
-        </data-member>
-      </class-decl>
+      <class-decl name='sock_reuseport' is-struct='yes' visibility='default' is-declaration-only='yes' id='ff751355'/>
       <class-decl name='kobj_ns_type_operations' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/kobject_ns.h' line='39' column='1' id='ff771233'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='type' type-id='52127d59' visibility='default' filepath='include/linux/kobject_ns.h' line='40' column='1'/>
@@ -106532,6 +106399,12 @@
         <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_vh___get_user_pages_remote' mangled-name='__traceiter_android_vh___get_user_pages_remote' filepath='include/trace/hooks/gup.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh___get_user_pages_remote'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='17' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='include/trace/hooks/gup.h' line='17' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='17' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_vh_aes_decrypt' mangled-name='__traceiter_android_vh_aes_decrypt' filepath='include/trace/hooks/fips140.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_decrypt'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
         <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
@@ -106610,6 +106483,16 @@
         <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_vh_get_user_pages' mangled-name='__traceiter_android_vh_get_user_pages' filepath='include/trace/hooks/gup.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_get_user_pages'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='21' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='21' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_vh_internal_get_user_pages_fast' mangled-name='__traceiter_android_vh_internal_get_user_pages_fast' filepath='include/trace/hooks/gup.h' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_internal_get_user_pages_fast'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='25' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='25' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_vh_ipi_stop' mangled-name='__traceiter_android_vh_ipi_stop' filepath='include/trace/hooks/debug.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ipi_stop'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/debug.h' line='16' column='1'/>
         <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/debug.h' line='16' column='1'/>
@@ -106647,6 +106530,11 @@
         <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_vh_pin_user_pages' mangled-name='__traceiter_android_vh_pin_user_pages' filepath='include/trace/hooks/gup.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_pin_user_pages'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='29' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='29' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_vh_rmqueue' mangled-name='__traceiter_android_vh_rmqueue' filepath='include/trace/hooks/mm.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_rmqueue'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
         <parameter type-id='0a0aff97' name='preferred_zone' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
@@ -106707,6 +106595,14 @@
         <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_vh_try_grab_compound_head' mangled-name='__traceiter_android_vh_try_grab_compound_head' filepath='include/trace/hooks/gup.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_try_grab_compound_head'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='refs' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
+        <parameter type-id='d8e6b335' name='ret' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_vh_typec_store_partner_src_caps' mangled-name='__traceiter_android_vh_typec_store_partner_src_caps' filepath='include/trace/hooks/typec.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_store_partner_src_caps'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
         <parameter type-id='426e425b' name='port' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
@@ -106993,6 +106889,7 @@
       <var-decl name='__tracepoint_android_rvh_ufs_complete_init' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_complete_init' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_complete_init'/>
       <var-decl name='__tracepoint_android_rvh_ufs_reprogram_all_keys' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_reprogram_all_keys' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_reprogram_all_keys'/>
       <var-decl name='__tracepoint_android_rvh_util_est_update' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_util_est_update' visibility='default' filepath='include/trace/hooks/sched.h' line='317' column='1' elf-symbol-id='__tracepoint_android_rvh_util_est_update'/>
+      <var-decl name='__tracepoint_android_vh___get_user_pages_remote' type-id='4ca0c298' mangled-name='__tracepoint_android_vh___get_user_pages_remote' visibility='default' filepath='include/trace/hooks/gup.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh___get_user_pages_remote'/>
       <var-decl name='__tracepoint_android_vh_aes_decrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_decrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_aes_decrypt'/>
       <var-decl name='__tracepoint_android_vh_aes_encrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_encrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='34' column='1' elf-symbol-id='__tracepoint_android_vh_aes_encrypt'/>
       <var-decl name='__tracepoint_android_vh_aes_expandkey' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_expandkey' visibility='default' filepath='include/trace/hooks/fips140.h' line='27' column='1' elf-symbol-id='__tracepoint_android_vh_aes_expandkey'/>
@@ -107004,12 +106901,15 @@
       <var-decl name='__tracepoint_android_vh_dup_task_struct' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_dup_task_struct' visibility='default' filepath='include/trace/hooks/sched.h' line='384' column='1' elf-symbol-id='__tracepoint_android_vh_dup_task_struct'/>
       <var-decl name='__tracepoint_android_vh_enable_thermal_genl_check' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_enable_thermal_genl_check' visibility='default' filepath='include/trace/hooks/thermal.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_enable_thermal_genl_check'/>
       <var-decl name='__tracepoint_android_vh_ep_create_wakeup_source' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ep_create_wakeup_source' visibility='default' filepath='include/trace/hooks/fs.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_ep_create_wakeup_source'/>
+      <var-decl name='__tracepoint_android_vh_get_user_pages' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_get_user_pages' visibility='default' filepath='include/trace/hooks/gup.h' line='21' column='1' elf-symbol-id='__tracepoint_android_vh_get_user_pages'/>
+      <var-decl name='__tracepoint_android_vh_internal_get_user_pages_fast' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_internal_get_user_pages_fast' visibility='default' filepath='include/trace/hooks/gup.h' line='25' column='1' elf-symbol-id='__tracepoint_android_vh_internal_get_user_pages_fast'/>
       <var-decl name='__tracepoint_android_vh_ipi_stop' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ipi_stop' visibility='default' filepath='include/trace/hooks/debug.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_ipi_stop'/>
       <var-decl name='__tracepoint_android_vh_meminfo_proc_show' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_meminfo_proc_show' visibility='default' filepath='include/trace/hooks/mm.h' line='51' column='1' elf-symbol-id='__tracepoint_android_vh_meminfo_proc_show'/>
       <var-decl name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_mq_rw_recovery'/>
       <var-decl name='__tracepoint_android_vh_mmc_blk_reset' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_reset' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_reset'/>
       <var-decl name='__tracepoint_android_vh_of_i2c_get_board_info' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_of_i2c_get_board_info' visibility='default' filepath='include/trace/hooks/i2c.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_of_i2c_get_board_info'/>
       <var-decl name='__tracepoint_android_vh_pagecache_get_page' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pagecache_get_page' visibility='default' filepath='include/trace/hooks/mm.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_pagecache_get_page'/>
+      <var-decl name='__tracepoint_android_vh_pin_user_pages' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pin_user_pages' visibility='default' filepath='include/trace/hooks/gup.h' line='29' column='1' elf-symbol-id='__tracepoint_android_vh_pin_user_pages'/>
       <var-decl name='__tracepoint_android_vh_rmqueue' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_rmqueue' visibility='default' filepath='include/trace/hooks/mm.h' line='35' column='1' elf-symbol-id='__tracepoint_android_vh_rmqueue'/>
       <var-decl name='__tracepoint_android_vh_scheduler_tick' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_scheduler_tick' visibility='default' filepath='include/trace/hooks/sched.h' line='31' column='1' elf-symbol-id='__tracepoint_android_vh_scheduler_tick'/>
       <var-decl name='__tracepoint_android_vh_setscheduler_uclamp' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_setscheduler_uclamp' visibility='default' filepath='include/trace/hooks/sched.h' line='404' column='1' elf-symbol-id='__tracepoint_android_vh_setscheduler_uclamp'/>
@@ -107019,6 +106919,7 @@
       <var-decl name='__tracepoint_android_vh_sysrq_crash' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sysrq_crash' visibility='default' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_sysrq_crash'/>
       <var-decl name='__tracepoint_android_vh_thermal_pm_notify_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_thermal_pm_notify_suspend' visibility='default' filepath='include/trace/hooks/thermal.h' line='19' column='1' elf-symbol-id='__tracepoint_android_vh_thermal_pm_notify_suspend'/>
       <var-decl name='__tracepoint_android_vh_timerfd_create' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_timerfd_create' visibility='default' filepath='include/trace/hooks/fs.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_timerfd_create'/>
+      <var-decl name='__tracepoint_android_vh_try_grab_compound_head' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_try_grab_compound_head' visibility='default' filepath='include/trace/hooks/gup.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_try_grab_compound_head'/>
       <var-decl name='__tracepoint_android_vh_typec_store_partner_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_store_partner_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='51' column='1' elf-symbol-id='__tracepoint_android_vh_typec_store_partner_src_caps'/>
       <var-decl name='__tracepoint_android_vh_typec_tcpci_override_toggling' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpci_override_toggling' visibility='default' filepath='include/trace/hooks/typec.h' line='28' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpci_override_toggling'/>
       <var-decl name='__tracepoint_android_vh_typec_tcpm_get_timer' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_get_timer' visibility='default' filepath='include/trace/hooks/typec.h' line='47' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_get_timer'/>
@@ -113869,6 +113770,12 @@
       <function-decl name='get_next_ino' mangled-name='get_next_ino' filepath='fs/inode.c' line='894' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_next_ino'>
         <return type-id='f0981eeb'/>
       </function-decl>
+      <function-decl name='get_pfnblock_flags_mask' mangled-name='get_pfnblock_flags_mask' filepath='mm/page_alloc.c' line='501' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_pfnblock_flags_mask'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='501' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/page_alloc.c' line='501' column='1'/>
+        <parameter type-id='7359adad' name='mask' filepath='mm/page_alloc.c' line='502' column='1'/>
+        <return type-id='7359adad'/>
+      </function-decl>
       <function-decl name='get_pid_task' mangled-name='get_pid_task' filepath='kernel/pid.c' line='449' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_pid_task'>
         <parameter type-id='b94e5398' name='pid' filepath='kernel/pid.c' line='449' column='1'/>
         <parameter type-id='ce78cf46' name='type' filepath='kernel/pid.c' line='449' column='1'/>
@@ -113911,29 +113818,29 @@
         <parameter type-id='f0981eeb' name='flags' filepath='fs/file.c' line='561' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1894' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1894' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1894' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1895' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1895' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1896' column='1'/>
+      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1905' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1905' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1906' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1906' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1907' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2789' column='1'/>
-        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2789' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2790' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2790' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1847' column='1'/>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1848' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1848' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1849' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1849' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1850' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1850' column='1'/>
+      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2803' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2803' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2803' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2804' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2804' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1858' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1858' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1859' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1859' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1860' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1860' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1861' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1861' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='get_vaddr_frames' mangled-name='get_vaddr_frames' filepath='mm/frame_vector.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_vaddr_frames'>
@@ -118320,29 +118227,29 @@
         <parameter type-id='20f5f452' name='pin' filepath='drivers/pinctrl/core.c' line='167' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2926' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2926' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2926' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2927' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2927' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2928' column='1'/>
+      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2940' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2940' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2940' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2941' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2941' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2942' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2822' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2822' column='1'/>
-        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2822' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2823' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2823' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2893' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2893' column='1'/>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2894' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2894' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2895' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2895' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2896' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2896' column='1'/>
+      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2836' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2836' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2836' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2837' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2837' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2907' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2907' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2908' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2908' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2909' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2909' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2910' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2910' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='pinconf_generic_dt_free_map' mangled-name='pinconf_generic_dt_free_map' filepath='drivers/pinctrl/pinconf-generic.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinconf_generic_dt_free_map'>
@@ -122719,8 +122626,8 @@
         <parameter type-id='95e97e5e' name='even_cows' filepath='mm/memory.c' line='3539' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='252' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/gup.c' line='252' column='1'/>
+      <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/gup.c' line='261' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unregister_blkdev' mangled-name='unregister_blkdev' filepath='block/genhd.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_blkdev'>
diff --git a/build.config.common b/build.config.common
index 754271c1114c7..c7c4b23590f5a 100644
--- a/build.config.common
+++ b/build.config.common
@@ -1,7 +1,7 @@
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.constants
 
 BRANCH=android13-5.10
-KMI_GENERATION=1
+KMI_GENERATION=2
 
 LLVM=1
 DEPMOD=depmod
-- 
GitLab


From ed0dec098e2c5f92d2578dd25cee57c1cddb499d Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@google.com>
Date: Wed, 23 Mar 2022 11:00:08 -0700
Subject: [PATCH 4619/4878] ANDROID: gki_config: enable F2FS_UNFAIR_RWSEM

Let's try this to avoid lock contention, until we find a better solution.

Bug: 216636351
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: Ib7ae218cb4a2531fdb85679b8530e4eba755e06a
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index c0744fd418c8e..aa1130c00355b 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -576,6 +576,7 @@ CONFIG_EXT4_FS_SECURITY=y
 CONFIG_F2FS_FS=y
 CONFIG_F2FS_FS_SECURITY=y
 CONFIG_F2FS_FS_COMPRESSION=y
+CONFIG_F2FS_UNFAIR_RWSEM=y
 CONFIG_FS_ENCRYPTION=y
 CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
 CONFIG_FS_VERITY=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index ee7976c6d9f8f..1eb28d0b8273c 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -506,6 +506,7 @@ CONFIG_EXT4_FS_SECURITY=y
 CONFIG_F2FS_FS=y
 CONFIG_F2FS_FS_SECURITY=y
 CONFIG_F2FS_FS_COMPRESSION=y
+CONFIG_F2FS_UNFAIR_RWSEM=y
 CONFIG_FS_ENCRYPTION=y
 CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y
 CONFIG_FS_VERITY=y
-- 
GitLab


From 93846ccca1091e6bd07bf8e657a57143cf9fa9b0 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Wed, 23 Mar 2022 09:27:26 +0000
Subject: [PATCH 4620/4878] ANDROID: KVM: arm64: Invalidate TLB by VMID when
 tearing down the shadow VM

When a shadow VM is torn down, its VMID can be reallocated as soon as
the shadow table entry is cleared to NULL. Since tearing down the
stage-2 page-table does not imply TLB invalidation, the TLB could still
contain stale entries from the old VM and the new user of the VMID could
end up seeing erroneous translations.

Invalidate the TLB for the VMID of the VM being torn down prior to
clearing its entry in the shadow table.

Bug: 226312378
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ice44d030bf01a1b7612413ee32440f3f38cb3e4e
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 6d1eeacc559bc..6e32f6d7188da 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -678,6 +678,8 @@ int __pkvm_teardown_shadow(int shadow_handle)
 		goto err_unlock;
 	}
 
+	/* Ensure the VMID is clean before it can be reallocated */
+	__kvm_tlb_flush_vmid(&vm->arch.mmu);
 	remove_shadow_table(shadow_handle);
 	hyp_spin_unlock(&shadow_lock);
 
-- 
GitLab


From 3101b49e5b697badde66ba3c8664e73442abdf10 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers@google.com>
Date: Fri, 18 Mar 2022 13:14:56 -0700
Subject: [PATCH 4621/4878] ANDROID: clang: update to 14.0.3

Bug: 225394140
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Id092562afb73b51883feafbd8ae49736a570af09
---
 build.config.constants | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.constants b/build.config.constants
index 3dfe3ba4d9bf5..17300e99677f7 100644
--- a/build.config.constants
+++ b/build.config.constants
@@ -1 +1 @@
-CLANG_VERSION=r445002
+CLANG_VERSION=r450784
-- 
GitLab


From c8b5505153c8ca922c31bd46c7f69b2a58a80bdc Mon Sep 17 00:00:00 2001
From: Will McVicker <willmcvicker@google.com>
Date: Thu, 24 Mar 2022 12:26:50 -0700
Subject: [PATCH 4622/4878] ANDROID: Update the ABI representation

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable

1 Added variable:

  [A] 'reboot_mode reboot_mode'

Bug: 226526792
Change-Id: Ic51d233429f0325c33111bc36a65b78fc4288fa6
Signed-off-by: Will McVicker <willmcvicker@google.com>
---
 android/abi_gki_aarch64.xml     | 258 ++++++++++++++++++++++++++------
 android/abi_gki_aarch64_generic |   1 +
 2 files changed, 212 insertions(+), 47 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 1be4b7dcd1a6a..564e59ae04217 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -3852,6 +3852,7 @@
       <elf-symbol name='platform_bus_type' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cefccc9'/>
       <elf-symbol name='pm_power_off' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60a32ea9'/>
       <elf-symbol name='pm_suspend_global_flags' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42635d55'/>
+      <elf-symbol name='reboot_mode' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429c3f9c'/>
       <elf-symbol name='reservation_ww_class' size='32' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc328a5c'/>
       <elf-symbol name='rfc1042_header' size='6' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69b18f43'/>
       <elf-symbol name='root_task_group' size='448' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc63fa7f'/>
@@ -4287,7 +4288,7 @@
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+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='map' type-id='9e4acc7a' visibility='default' filepath='include/linux/bpf_local_storage.h' line='43' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2048'>
+          <var-decl name='buckets' type-id='3bdbc3eb' visibility='default' filepath='include/linux/bpf_local_storage.h' line='50' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2112'>
+          <var-decl name='bucket_log' type-id='19c2251e' visibility='default' filepath='include/linux/bpf_local_storage.h' line='51' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2144'>
+          <var-decl name='elem_size' type-id='1dc6a898' visibility='default' filepath='include/linux/bpf_local_storage.h' line='52' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2160'>
+          <var-decl name='cache_idx' type-id='1dc6a898' visibility='default' filepath='include/linux/bpf_local_storage.h' line='53' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='0'>
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       <pointer-type-def type-id='ae2eaa42' size-in-bits='64' id='0838a534'/>
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-          <var-decl name='' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
+          <var-decl name='' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='ehash_locks' type-id='cff2d845' visibility='default' filepath='include/net/inet_hashtables.h' line='132' column='1'/>
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+        </data-member>
+        <data-member access='public' layout-offset-in-bits='160'>
+          <var-decl name='ehash_locks_mask' type-id='f0981eeb' visibility='default' filepath='include/net/inet_hashtables.h' line='134' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
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+        <data-member access='public' layout-offset-in-bits='320'>
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+        <data-member access='public' layout-offset-in-bits='352'>
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+        </data-member>
+        <data-member access='public' layout-offset-in-bits='384'>
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+          <var-decl name='listening_hash' type-id='e3638da9' visibility='default' filepath='include/net/inet_hashtables.h' line='159' column='1'/>
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@@ -24313,6 +24375,7 @@
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       <class-decl name='ufs_clk_scaling' size-in-bits='1792' is-struct='yes' visibility='default' filepath='drivers/scsi/ufs/ufshcd.h' line='440' column='1' id='ab4dad02'>
@@ -68914,7 +69008,15 @@
           <var-decl name='nh_grp' type-id='c5ff416f' visibility='default' filepath='include/net/nexthop.h' line='103' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65d'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1' id='ac5ab65d'>
+        <data-member access='public'>
+          <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/inet_hashtables.h' line='116' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='nulls_head' type-id='af86905d' visibility='default' filepath='include/net/inet_hashtables.h' line='117' column='1'/>
+        </data-member>
+      </union-decl>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65e'>
         <data-member access='public'>
           <var-decl name='ipv4' type-id='78a133c2' visibility='default' filepath='include/net/ip_fib.h' line='90' column='1'/>
         </data-member>
@@ -68922,7 +69024,7 @@
           <var-decl name='ipv6' type-id='f6ed712a' visibility='default' filepath='include/net/ip_fib.h' line='91' column='1'/>
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       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65e'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65f'>
         <data-member access='public'>
           <var-decl name='rt_gw4' type-id='78a133c2' visibility='default' filepath='include/net/route.h' line='63' column='1'/>
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@@ -68930,7 +69032,7 @@
           <var-decl name='rt_gw6' type-id='f6ed712a' visibility='default' filepath='include/net/route.h' line='64' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab65f'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab660'>
         <data-member access='public'>
           <var-decl name='rssi' type-id='1569e170' visibility='default' filepath='include/net/mac80211.h' line='465' column='1'/>
         </data-member>
@@ -68941,7 +69043,7 @@
           <var-decl name='ba' type-id='0da711ca' visibility='default' filepath='include/net/mac80211.h' line='467' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1' id='ac5ab660'>
+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1' id='ac5ab661'>
         <data-member access='public'>
           <var-decl name='tkip' type-id='e7f44027' visibility='default' filepath='include/net/mac80211.h' line='1896' column='1'/>
         </data-member>
@@ -68961,7 +69063,7 @@
           <var-decl name='hw' type-id='e7f44029' visibility='default' filepath='include/net/mac80211.h' line='1912' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab661'>
+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab662'>
         <data-member access='public'>
           <var-decl name='control' type-id='e7f4402b' visibility='default' filepath='include/net/mac80211.h' line='1081' column='1'/>
         </data-member>
@@ -68981,7 +69083,7 @@
           <var-decl name='driver_data' type-id='e4a26562' visibility='default' filepath='include/net/mac80211.h' line='1106' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab662'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab663'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f4402f' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1'/>
         </data-member>
@@ -68989,7 +69091,7 @@
           <var-decl name='jiffies' type-id='7359adad' visibility='default' filepath='include/net/mac80211.h' line='1074' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab663'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab664'>
         <data-member access='public'>
           <var-decl name='band_pref' type-id='3eaa0294' visibility='default' filepath='include/net/cfg80211.h' line='2741' column='1'/>
         </data-member>
@@ -68997,7 +69099,7 @@
           <var-decl name='adjust' type-id='5da08e25' visibility='default' filepath='include/net/cfg80211.h' line='2742' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='208' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1098' column='1' id='ac5ab664'>
+      <union-decl name='__anonymous_union__' size-in-bits='208' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1098' column='1' id='ac5ab665'>
         <data-member access='public'>
           <var-decl name='auth' type-id='e7f44033' visibility='default' filepath='include/linux/ieee80211.h' line='1105' column='1'/>
         </data-member>
@@ -69038,7 +69140,7 @@
           <var-decl name='action' type-id='e7f4403b' visibility='default' filepath='include/linux/ieee80211.h' line='1256' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='200' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1159' column='1' id='ac5ab665'>
+      <union-decl name='__anonymous_union__' size-in-bits='200' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1159' column='1' id='ac5ab666'>
         <data-member access='public'>
           <var-decl name='wme_action' type-id='e7f4403c' visibility='default' filepath='include/linux/ieee80211.h' line='1165' column='1'/>
         </data-member>
@@ -69091,7 +69193,7 @@
           <var-decl name='ftm' type-id='e7f4404a' visibility='default' filepath='include/linux/ieee80211.h' line='1254' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/sound/control.h' line='71' column='1' id='ac5ab666'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/sound/control.h' line='71' column='1' id='ac5ab667'>
         <data-member access='public'>
           <var-decl name='c' type-id='bf7b4ec3' visibility='default' filepath='include/sound/control.h' line='72' column='1'/>
         </data-member>
@@ -69099,7 +69201,7 @@
           <var-decl name='p' type-id='5b2fd8e8' visibility='default' filepath='include/sound/control.h' line='73' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1023' column='1' id='ac5ab667'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1023' column='1' id='ac5ab668'>
         <data-member access='public'>
           <var-decl name='integer' type-id='e7f4404b' visibility='default' filepath='include/uapi/sound/asound.h' line='1028' column='1'/>
         </data-member>
@@ -69113,24 +69215,24 @@
           <var-decl name='reserved' type-id='6f10c3ff' visibility='default' filepath='include/uapi/sound/asound.h' line='1041' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1049' column='1' id='ac5ab668'>
+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1049' column='1' id='ac5ab669'>
         <data-member access='public'>
-          <var-decl name='integer' type-id='ac5ab669' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
+          <var-decl name='integer' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='integer64' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
+          <var-decl name='integer64' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='enumerated' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
+          <var-decl name='enumerated' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='bytes' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
+          <var-decl name='bytes' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
         </data-member>
         <data-member access='public'>
           <var-decl name='iec958' type-id='22a78e66' visibility='default' filepath='include/uapi/sound/asound.h' line='1066' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1050' column='1' id='ac5ab669'>
+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1050' column='1' id='ac5ab66a'>
         <data-member access='public'>
           <var-decl name='value' type-id='e1c8dbe3' visibility='default' filepath='include/uapi/sound/asound.h' line='1051' column='1'/>
         </data-member>
@@ -69138,7 +69240,7 @@
           <var-decl name='value_ptr' type-id='3ccc2590' visibility='default' filepath='include/uapi/sound/asound.h' line='1052' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1054' column='1' id='ac5ab66a'>
+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1054' column='1' id='ac5ab66b'>
         <data-member access='public'>
           <var-decl name='value' type-id='1fd26250' visibility='default' filepath='include/uapi/sound/asound.h' line='1055' column='1'/>
         </data-member>
@@ -69146,7 +69248,7 @@
           <var-decl name='value_ptr' type-id='8b97c2dc' visibility='default' filepath='include/uapi/sound/asound.h' line='1056' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66b'>
+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66c'>
         <data-member access='public'>
           <var-decl name='item' type-id='ee4e68c4' visibility='default' filepath='include/uapi/sound/asound.h' line='1059' column='1'/>
         </data-member>
@@ -69154,7 +69256,7 @@
           <var-decl name='item_ptr' type-id='807869d3' visibility='default' filepath='include/uapi/sound/asound.h' line='1060' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66c'>
+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66d'>
         <data-member access='public'>
           <var-decl name='data' type-id='b6d05418' visibility='default' filepath='include/uapi/sound/asound.h' line='1063' column='1'/>
         </data-member>
@@ -69162,7 +69264,7 @@
           <var-decl name='data_ptr' type-id='cf536864' visibility='default' filepath='include/uapi/sound/asound.h' line='1064' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66d'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66e'>
         <data-member access='public'>
           <var-decl name='text' type-id='cf87b76c' visibility='default' filepath='include/sound/info.h' line='69' column='1'/>
         </data-member>
@@ -69170,7 +69272,7 @@
           <var-decl name='ops' type-id='3245eba2' visibility='default' filepath='include/sound/info.h' line='70' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab66e'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab66f'>
         <data-member access='public'>
           <var-decl name='control' type-id='8a84fb32' visibility='default' filepath='include/sound/soc-topology.h' line='70' column='1'/>
         </data-member>
@@ -69178,7 +69280,7 @@
           <var-decl name='widget' type-id='ca569b91' visibility='default' filepath='include/sound/soc-topology.h' line='71' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab66f'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab670'>
         <data-member access='public'>
           <var-decl name='uuid' type-id='ebaaecd3' visibility='default' filepath='include/uapi/sound/asoc.h' line='223' column='1'/>
         </data-member>
@@ -69189,7 +69291,7 @@
           <var-decl name='string' type-id='e9564905' visibility='default' filepath='include/uapi/sound/asoc.h' line='225' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab670'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab671'>
         <data-member access='public'>
           <var-decl name='data' type-id='e84913bd' visibility='default' filepath='include/uapi/sound/asoc.h' line='237' column='1'/>
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@@ -69197,7 +69299,7 @@
           <var-decl name='array' type-id='591a7f7d' visibility='default' filepath='include/uapi/sound/asoc.h' line='238' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab671'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab672'>
         <data-member access='public'>
           <var-decl name='data' type-id='28645bde' visibility='default' filepath='include/uapi/sound/asoc.h' line='255' column='1'/>
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@@ -73260,6 +73362,14 @@
       </function-type>
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       <pointer-type-def type-id='537afa70' size-in-bits='64' id='b6c6c0b9'/>
+      <class-decl name='bpf_local_storage_data' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='56' column='1' id='b6caa30a'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='smap' type-id='ac2666b2' visibility='default' filepath='include/linux/bpf_local_storage.h' line='63' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='data' type-id='29c3368c' visibility='default' filepath='include/linux/bpf_local_storage.h' line='64' column='1'/>
+        </data-member>
+      </class-decl>
       <array-type-def dimensions='1' type-id='002ac4a6' size-in-bits='4096' id='b6d05418'>
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@@ -84433,7 +84543,7 @@
           <var-decl name='behaviour' type-id='10fd9108' visibility='default' filepath='include/net/cfg80211.h' line='2739' column='1'/>
         </data-member>
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-          <var-decl name='param' type-id='ac5ab663' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
+          <var-decl name='param' type-id='ac5ab664' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
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       <class-decl name='drm_bridge_state' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/drm/drm_atomic.h' line='1033' column='1' id='d24b8c9c'>
@@ -84927,6 +85037,14 @@
           <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/usb/typec.h' line='219' column='1'/>
         </data-member>
       </class-decl>
+      <class-decl name='bpf_local_storage_map_bucket' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='19' column='1' id='d38c200b'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='list' type-id='e151255a' visibility='default' filepath='include/linux/bpf_local_storage.h' line='20' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='lock' type-id='f5c90b3f' visibility='default' filepath='include/linux/bpf_local_storage.h' line='21' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='c0342c43' size-in-bits='64' id='d38eb863'/>
       <class-decl name='xarray' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/xarray.h' line='292' column='1' id='d39738ac'>
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@@ -87516,6 +87634,9 @@
       <array-type-def dimensions='1' type-id='094d8048' size-in-bits='infinite' id='da6e2919'>
         <subrange length='infinite' type-id='7ff19f0f' id='031f2035'/>
       </array-type-def>
+      <array-type-def dimensions='1' type-id='2c5bcc28' size-in-bits='1024' id='da6f4a25'>
+        <subrange length='16' type-id='7ff19f0f' id='848d0938'/>
+      </array-type-def>
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         <parameter type-id='77e79a4b'/>
         <parameter type-id='f57039f0'/>
@@ -90043,6 +90164,7 @@
       <pointer-type-def type-id='92892da6' size-in-bits='64' id='dffc7428'/>
       <typedef-decl name='efi_time_t' type-id='d77b0fc0' filepath='include/linux/efi.h' line='193' column='1' id='dffd2b75'/>
       <pointer-type-def type-id='7f73c08c' size-in-bits='64' id='e003b5ce'/>
+      <pointer-type-def type-id='42b16dba' size-in-bits='64' id='e0087b68'/>
       <class-decl name='drm_crtc_funcs' size-in-bits='1536' is-struct='yes' visibility='default' filepath='include/drm/drm_crtc.h' line='409' column='1' id='e019c76b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='reset' type-id='a50616ee' visibility='default' filepath='include/drm/drm_crtc.h' line='420' column='1'/>
@@ -91155,7 +91277,7 @@
           <var-decl name='nhc_lwtstate' type-id='d19f4fca' visibility='default' filepath='include/net/ip_fib.h' line='87' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='nhc_gw' type-id='ac5ab65d' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
+          <var-decl name='nhc_gw' type-id='ac5ab65e' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
           <var-decl name='nhc_weight' type-id='95e97e5e' visibility='default' filepath='include/net/ip_fib.h' line='94' column='1'/>
@@ -91766,6 +91888,9 @@
       </function-type>
       <pointer-type-def type-id='9da0fa51' size-in-bits='64' id='e357ec39'/>
       <pointer-type-def type-id='c4e36342' size-in-bits='64' id='e36088ec'/>
+      <array-type-def dimensions='1' type-id='42b16dba' size-in-bits='4096' id='e3638da9'>
+        <subrange length='32' type-id='7ff19f0f' id='ae5bde82'/>
+      </array-type-def>
       <array-type-def dimensions='1' type-id='2f162548' size-in-bits='224' id='e369592a'>
         <subrange length='7' type-id='7ff19f0f' id='16fc326e'/>
       </array-type-def>
@@ -95632,7 +95757,7 @@
       </class-decl>
       <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1060' column='1' id='e7f4402b'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
+          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='vif' type-id='3a1577c5' visibility='default' filepath='include/net/mac80211.h' line='1077' column='1'/>
@@ -95871,7 +95996,7 @@
           <var-decl name='category' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1158' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='8'>
-          <var-decl name='u' type-id='ac5ab665' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
+          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403c'>
@@ -99303,7 +99428,7 @@
           <var-decl name='type' type-id='703e082c' visibility='default' filepath='include/net/mac80211.h' line='463' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='u' type-id='ac5ab65f' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
+          <var-decl name='u' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='b5d64367' size-in-bits='64' id='f08a800b'/>
@@ -103924,6 +104049,7 @@
           <var-decl name='perf_perm' type-id='7fa32aba' visibility='default' filepath='include/linux/trace_events.h' line='307' column='1'/>
         </data-member>
       </class-decl>
+      <pointer-type-def type-id='082b64be' size-in-bits='64' id='fd53db64'/>
       <pointer-type-def type-id='b36b391c' size-in-bits='64' id='fd780be6'/>
       <class-decl name='usb_ctrlrequest' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/uapi/linux/usb/ch9.h' line='213' column='1' id='fd7e7994'>
         <data-member access='public' layout-offset-in-bits='0'>
@@ -103953,6 +104079,15 @@
         <parameter type-id='f9409001'/>
         <return type-id='48b5725f'/>
       </function-type>
+      <enum-decl name='reboot_mode' filepath='include/linux/reboot.h' line='16' column='1' id='fdb20761'>
+        <underlying-type type-id='9cac1fee'/>
+        <enumerator name='REBOOT_UNDEFINED' value='-1'/>
+        <enumerator name='REBOOT_COLD' value='0'/>
+        <enumerator name='REBOOT_WARM' value='1'/>
+        <enumerator name='REBOOT_HARD' value='2'/>
+        <enumerator name='REBOOT_SOFT' value='3'/>
+        <enumerator name='REBOOT_GPIO' value='4'/>
+      </enum-decl>
       <function-type size-in-bits='64' id='fdb31210'>
         <parameter type-id='43c38462'/>
         <parameter type-id='f0981eeb'/>
@@ -104901,7 +105036,35 @@
         <return type-id='95e97e5e'/>
       </function-type>
       <pointer-type-def type-id='f5362227' size-in-bits='64' id='ff70ae33'/>
-      <class-decl name='sock_reuseport' is-struct='yes' visibility='default' is-declaration-only='yes' id='ff751355'/>
+      <class-decl name='sock_reuseport' size-in-bits='320' is-struct='yes' visibility='default' filepath='include/net/sock_reuseport.h' line='13' column='1' id='ff751355'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/net/sock_reuseport.h' line='14' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='max_socks' type-id='1dc6a898' visibility='default' filepath='include/net/sock_reuseport.h' line='16' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='144'>
+          <var-decl name='num_socks' type-id='1dc6a898' visibility='default' filepath='include/net/sock_reuseport.h' line='17' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='160'>
+          <var-decl name='synq_overflow_ts' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='21' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='reuseport_id' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='23' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='224'>
+          <var-decl name='bind_inany' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='24' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='225'>
+          <var-decl name='has_conns' type-id='f0981eeb' visibility='default' filepath='include/net/sock_reuseport.h' line='25' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='prog' type-id='bdcee7ae' visibility='default' filepath='include/net/sock_reuseport.h' line='26' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='320'>
+          <var-decl name='socks' type-id='5be9db8d' visibility='default' filepath='include/net/sock_reuseport.h' line='27' column='1'/>
+        </data-member>
+      </class-decl>
       <class-decl name='kobj_ns_type_operations' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/kobject_ns.h' line='39' column='1' id='ff771233'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='type' type-id='52127d59' visibility='default' filepath='include/linux/kobject_ns.h' line='40' column='1'/>
@@ -118955,6 +119118,7 @@
         <parameter type-id='43c38462' name='rdev' filepath='drivers/regulator/core.c' line='5571' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <var-decl name='reboot_mode' type-id='fdb20761' mangled-name='reboot_mode' visibility='default' filepath='kernel/reboot.c' line='34' column='1' elf-symbol-id='reboot_mode'/>
       <function-decl name='refcount_dec_and_mutex_lock' mangled-name='refcount_dec_and_mutex_lock' filepath='lib/refcount.c' line='113' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='refcount_dec_and_mutex_lock'>
         <parameter type-id='35a0b4f8' name='r' filepath='lib/refcount.c' line='113' column='1'/>
         <parameter type-id='e0ea832a' name='lock' filepath='lib/refcount.c' line='113' column='1'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 75f2c2069758f..e8e9aa1252c50 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1655,6 +1655,7 @@
   __rcu_read_unlock
   rdev_get_drvdata
   rdev_get_id
+  reboot_mode
   refcount_dec_not_one
   refcount_warn_saturate
   __refrigerator
-- 
GitLab


From 6b94b8c3b72200644c26a48040aff111348887a6 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Thu, 24 Mar 2022 14:17:28 +0000
Subject: [PATCH 4623/4878] ANDROID: KVM: arm64: Only map swap-backed pages
 into the guest

Alistair reports an ext4 splat when running a non-protected guest under
pKVM using Cuttlefish on a rockpi board:

 | WARNING: CPU: 4 PID: 3125 at fs/ext4/inode.c:3592 ext4_set_page_dirty+0x6c/0x90
 |  sp : ffffffc00e1a39b0
 |  x29: ffffffc00e1a39b0 x28: ffffffc009ac3c18 x27: ffffffc009a80968
 |  x26: ffffff80c2753a00 x25: 0000000200000000 x24: ffffffc00a6dc000
 |  x23: 0000000000000000 x22: 0000000000000001 x21: fffffffe0314f640
 |  x20: ffffff8063a99890 x19: fffffffe0314f640 x18: ffffffc00dbf5090
 |  x17: 0000000000000020 x16: ffffffc00ab73080 x15: 0000000000000040
 |  x14: 0000000000000040 x13: 0000000000000040 x12: 0000000080200000
 |  x11: 0000000000000000 x10: fffffffe0314f640 x9 : 0000000000000016
 |  x8 : 0000000000000015 x7 : 0000000000000062 x6 : 0000000000000068
 |  x5 : 0000000080200015 x4 : ffffff80067c7500 x3 : 0000000080200016
 |  x2 : 0000000000000001 x1 : 0000000000000001 x0 : fffffffe0314f640
 |  Call trace:
 |   ext4_set_page_dirty+0x6c/0x90
 |   set_page_dirty+0xf0/0x264
 |   set_page_dirty_lock+0x94/0x164
 |   unpin_user_pages_dirty_lock+0xa0/0x15c
 |   kvm_shadow_destroy+0xd4/0x150
 |   kvm_arch_destroy_vm+0xa0/0xa4
 |   kvm_destroy_vm+0x634/0xa0c
 |   kvm_vcpu_release+0x44/0xc0
 |   __fput+0xf8/0x43c
 |   ____fput+0x14/0x24
 |   task_work_run+0x140/0x204
 |   do_exit+0x450/0x12b0
 |   do_group_exit+0xc8/0x17c
 |   get_signal+0x85c/0xa10
 |   do_signal+0x9c/0x268
 |   do_notify_resume+0x98/0x220
 |   el0_svc+0x5c/0x84
 |   el0t_64_sync_handler+0x88/0xec
 |   el0t_64_sync+0x1b4/0x1b8

This appears to be due to virtio-pmem mapping a host page-cache page
directly into the guest and pinning it with GUP. A later attempt to
wrprotect the page using page_mkclean() on the writeback path will not
find the guest mapping and consequently the filesystem becomes confused
when we later dirty the page without any page buffers having been
allocated.

Since the host cannot generally access the memory of protected VMs,
restrict ourselves to swap-backed pages for now and avoid attempting
writeback altogether, with the GUP pin preventing swapout.

Bug: 223678931
Reported-by: Alistair Delva <adelva@google.com>
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Id8da126aac220df6eff44177a911dc4627e68c02
---
 arch/arm64/kvm/mmu.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 80fed4cf0512a..79fb8a43ac5b6 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1189,7 +1189,22 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	ret = pin_user_pages(hva, 1, flags, &page, NULL);
 	mmap_read_unlock(mm);
 
-	if (ret == -EHWPOISON) {
+	/*
+	 * We really can't deal with page-cache pages returned by GUP
+	 * because (a) we may trigger writeback of a page for which we
+	 * no longer have access and (b) page_mkclean() won't find the
+	 * stage-2 mapping in the rmap so we can get out-of-whack with
+	 * the filesystem when marking the page dirty during unpinning.
+	 *
+	 * Ideally we'd just restrict ourselves to anonymous pages, but
+	 * we also want to allow memfd (i.e. shmem) pages, so check for
+	 * pages backed by swap in the knowledge that the GUP pin will
+	 * prevent try_to_unmap() from succeeding.
+	 */
+	if (!PageSwapBacked(page)) {
+		ret = -EIO;
+		goto dec_account;
+	} else if (ret == -EHWPOISON) {
 		kvm_send_hwpoison_signal(hva, PAGE_SHIFT);
 		ret = 0;
 		goto dec_account;
-- 
GitLab


From 9fbdc4b53fd18f66035a4765a635e177c2a34412 Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 4 Mar 2022 20:28:51 -0800
Subject: [PATCH 4624/4878] UPSTREAM: mm: refactor
 vm_area_struct::anon_vma_name usage code

Avoid mixing strings and their anon_vma_name referenced pointers by
using struct anon_vma_name whenever possible.  This simplifies the code
and allows easier sharing of anon_vma_name structures when they
represent the same name.

[surenb@google.com: fix comment]

Link: https://lkml.kernel.org/r/20220223153613.835563-1-surenb@google.com
Link: https://lkml.kernel.org/r/20220224231834.1481408-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Colin Cross <ccross@google.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Chris Hyser <chris.hyser@oracle.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Xiaofeng Cao <caoxiaofeng@yulong.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5c26f6ac9416b63d093e29c30e79b3297e425472)

Bug: 218352794
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I4a6b5602ce7151d1a4b88fac489f86d68089bd4d
---
 fs/proc/task_mmu.c        |  6 +--
 fs/userfaultfd.c          |  6 +--
 include/linux/mm.h        |  9 ++--
 include/linux/mm_inline.h | 86 +++++++++++++++++++++++++-------------
 include/linux/mm_types.h  |  5 ++-
 kernel/fork.c             |  4 +-
 kernel/sys.c              | 19 +++++----
 mm/madvise.c              | 87 +++++++++++++--------------------------
 mm/mempolicy.c            |  2 +-
 mm/mlock.c                |  2 +-
 mm/mmap.c                 | 12 +++---
 mm/mprotect.c             |  2 +-
 12 files changed, 125 insertions(+), 115 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 13f8e6f3d30f3..b1bcbe7aca0eb 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -309,7 +309,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 
 	name = arch_vma_name(vma);
 	if (!name) {
-		const char *anon_name;
+		struct anon_vma_name *anon_name;
 
 		if (!mm) {
 			name = "[vdso]";
@@ -327,10 +327,10 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
 			goto done;
 		}
 
-		anon_name = vma_anon_name(vma);
+		anon_name = anon_vma_name(vma);
 		if (anon_name) {
 			seq_pad(m, ' ');
-			seq_printf(m, "[anon:%s]", anon_name);
+			seq_printf(m, "[anon:%s]", anon_name->name);
 		}
 	}
 
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 1c171cb26412e..da8c8409528dc 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -880,7 +880,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 				 new_flags, vma->anon_vma,
 				 vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 NULL_VM_UFFD_CTX, vma_anon_name(vma));
+				 NULL_VM_UFFD_CTX, anon_vma_name(vma));
 		if (prev)
 			vma = prev;
 		else
@@ -1438,7 +1438,7 @@ static int userfaultfd_register(struct userfaultfd_ctx *ctx,
 				 vma->anon_vma, vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
 				 ((struct vm_userfaultfd_ctx){ ctx }),
-				 vma_anon_name(vma));
+				 anon_vma_name(vma));
 		if (prev) {
 			vma = prev;
 			goto next;
@@ -1617,7 +1617,7 @@ static int userfaultfd_unregister(struct userfaultfd_ctx *ctx,
 		prev = vma_merge(mm, prev, start, vma_end, new_flags,
 				 vma->anon_vma, vma->vm_file, vma->vm_pgoff,
 				 vma_policy(vma),
-				 NULL_VM_UFFD_CTX, vma_anon_name(vma));
+				 NULL_VM_UFFD_CTX, anon_vma_name(vma));
 		if (prev) {
 			vma = prev;
 			goto next;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f8ae933c9ed31..08326d776d4ae 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2672,13 +2672,13 @@ extern struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *anon, struct file *file,
 	pgoff_t pgoff, struct mempolicy *mpol, struct vm_userfaultfd_ctx uff,
-	const char *, bool keep_locked);
+	struct anon_vma_name *, bool keep_locked);
 
 static inline struct vm_area_struct *vma_merge(struct mm_struct *mm,
 	struct vm_area_struct *prev, unsigned long addr, unsigned long end,
 	unsigned long vm_flags, struct anon_vma *anon, struct file *file,
 	pgoff_t off, struct mempolicy *pol, struct vm_userfaultfd_ctx uff,
-	const char *anon_name)
+	struct anon_vma_name *anon_name)
 {
 	return __vma_merge(mm, prev, addr, end, vm_flags, anon, file, off,
 			   pol, uff, anon_name, false);
@@ -3397,11 +3397,12 @@ static inline int seal_check_future_write(int seals, struct vm_area_struct *vma)
 
 #ifdef CONFIG_ANON_VMA_NAME
 int madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
-			  unsigned long len_in, const char *name);
+			  unsigned long len_in,
+			  struct anon_vma_name *anon_name);
 #else
 static inline int
 madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
-		      unsigned long len_in, const char *name) {
+		      unsigned long len_in, struct anon_vma_name *anon_name) {
 	return 0;
 }
 #endif
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 589e828f8fa81..e733fcf083346 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -129,50 +129,80 @@ static __always_inline enum lru_list page_lru(struct page *page)
 
 #ifdef CONFIG_ANON_VMA_NAME
 /*
- * mmap_lock should be read-locked when calling vma_anon_name() and while using
- * the returned pointer.
+ * mmap_lock should be read-locked when calling anon_vma_name(). Caller should
+ * either keep holding the lock while using the returned pointer or it should
+ * raise anon_vma_name refcount before releasing the lock.
  */
-extern const char *vma_anon_name(struct vm_area_struct *vma);
+extern struct anon_vma_name *anon_vma_name(struct vm_area_struct *vma);
+extern struct anon_vma_name *anon_vma_name_alloc(const char *name);
+extern void anon_vma_name_free(struct kref *kref);
 
-/*
- * mmap_lock should be read-locked for orig_vma->vm_mm.
- * mmap_lock should be write-locked for new_vma->vm_mm or new_vma should be
- * isolated.
- */
-extern void dup_vma_anon_name(struct vm_area_struct *orig_vma,
-			      struct vm_area_struct *new_vma);
+/* mmap_lock should be read-locked */
+static inline void anon_vma_name_get(struct anon_vma_name *anon_name)
+{
+	if (anon_name)
+		kref_get(&anon_name->kref);
+}
 
-/*
- * mmap_lock should be write-locked or vma should have been isolated under
- * write-locked mmap_lock protection.
- */
-extern void free_vma_anon_name(struct vm_area_struct *vma);
+static inline void anon_vma_name_put(struct anon_vma_name *anon_name)
+{
+	if (anon_name)
+		kref_put(&anon_name->kref, anon_vma_name_free);
+}
 
-/* mmap_lock should be read-locked */
-static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
-					 const char *name)
+static inline void dup_anon_vma_name(struct vm_area_struct *orig_vma,
+				     struct vm_area_struct *new_vma)
+{
+	struct anon_vma_name *anon_name = anon_vma_name(orig_vma);
+
+	if (anon_name) {
+		anon_vma_name_get(anon_name);
+		new_vma->anon_name = anon_name;
+	}
+}
+
+static inline void free_anon_vma_name(struct vm_area_struct *vma)
 {
-	const char *vma_name = vma_anon_name(vma);
+	/*
+	 * Not using anon_vma_name because it generates a warning if mmap_lock
+	 * is not held, which might be the case here.
+	 */
+	if (!vma->vm_file)
+		anon_vma_name_put(vma->anon_name);
+}
 
-	/* either both NULL, or pointers to same string */
-	if (vma_name == name)
+static inline bool anon_vma_name_eq(struct anon_vma_name *anon_name1,
+				    struct anon_vma_name *anon_name2)
+{
+	if (anon_name1 == anon_name2)
 		return true;
 
-	return name && vma_name && !strcmp(name, vma_name);
+	return anon_name1 && anon_name2 &&
+		!strcmp(anon_name1->name, anon_name2->name);
 }
 #else /* CONFIG_ANON_VMA_NAME */
-static inline const char *vma_anon_name(struct vm_area_struct *vma)
+static inline struct anon_vma_name *anon_vma_name(struct vm_area_struct *vma)
+{
+	return NULL;
+}
+
+static inline struct anon_vma_name *anon_vma_name_alloc(const char *name)
 {
 	return NULL;
 }
-static inline void dup_vma_anon_name(struct vm_area_struct *orig_vma,
-			      struct vm_area_struct *new_vma) {}
-static inline void free_vma_anon_name(struct vm_area_struct *vma) {}
-static inline bool is_same_vma_anon_name(struct vm_area_struct *vma,
-					 const char *name)
+
+static inline void anon_vma_name_get(struct anon_vma_name *anon_name) {}
+static inline void anon_vma_name_put(struct anon_vma_name *anon_name) {}
+static inline void dup_anon_vma_name(struct vm_area_struct *orig_vma,
+				     struct vm_area_struct *new_vma) {}
+static inline void free_anon_vma_name(struct vm_area_struct *vma) {}
+
+static inline bool anon_vma_name_eq(struct anon_vma_name *anon_name1,
+				    struct anon_vma_name *anon_name2)
 {
 	return true;
 }
+
 #endif  /* CONFIG_ANON_VMA_NAME */
 
 #endif
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 04f1003826148..34c04b208968f 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -356,7 +356,10 @@ struct vm_area_struct {
 			struct rb_node rb;
 			unsigned long rb_subtree_last;
 		} shared;
-		/* Serialized by mmap_sem. */
+		/*
+		 * Serialized by mmap_sem. Never use directly because it is
+		 * valid only when vm_file is NULL. Use anon_vma_name instead.
+		 */
 		struct anon_vma_name *anon_name;
 	};
 
diff --git a/kernel/fork.c b/kernel/fork.c
index 7ea0443320faf..394593115c8d8 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -375,14 +375,14 @@ struct vm_area_struct *vm_area_dup(struct vm_area_struct *orig)
 		*new = data_race(*orig);
 		INIT_VMA(new);
 		new->vm_next = new->vm_prev = NULL;
-		dup_vma_anon_name(orig, new);
+		dup_anon_vma_name(orig, new);
 	}
 	return new;
 }
 
 void vm_area_free(struct vm_area_struct *vma)
 {
-	free_vma_anon_name(vma);
+	free_anon_vma_name(vma);
 	kmem_cache_free(vm_area_cachep, vma);
 }
 
diff --git a/kernel/sys.c b/kernel/sys.c
index ccfb6f05303e3..b9c690c534345 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -7,6 +7,7 @@
 
 #include <linux/export.h>
 #include <linux/mm.h>
+#include <linux/mm_inline.h>
 #include <linux/utsname.h>
 #include <linux/mman.h>
 #include <linux/reboot.h>
@@ -2298,15 +2299,16 @@ static int prctl_set_vma(unsigned long opt, unsigned long addr,
 {
 	struct mm_struct *mm = current->mm;
 	const char __user *uname;
-	char *name, *pch;
+	struct anon_vma_name *anon_name = NULL;
 	int error;
 
 	switch (opt) {
 	case PR_SET_VMA_ANON_NAME:
 		uname = (const char __user *)arg;
 		if (uname) {
-			name = strndup_user(uname, ANON_VMA_NAME_MAX_LEN);
+			char *name, *pch;
 
+			name = strndup_user(uname, ANON_VMA_NAME_MAX_LEN);
 			if (IS_ERR(name))
 				return PTR_ERR(name);
 
@@ -2316,15 +2318,18 @@ static int prctl_set_vma(unsigned long opt, unsigned long addr,
 					return -EINVAL;
 				}
 			}
-		} else {
-			/* Reset the name */
-			name = NULL;
+			/* anon_vma has its own copy */
+			anon_name = anon_vma_name_alloc(name);
+			kfree(name);
+			if (!anon_name)
+				return -ENOMEM;
+
 		}
 
 		mmap_write_lock(mm);
-		error = madvise_set_anon_name(mm, addr, size, name);
+		error = madvise_set_anon_name(mm, addr, size, anon_name);
 		mmap_write_unlock(mm);
-		kfree(name);
+		anon_vma_name_put(anon_name);
 		break;
 	default:
 		error = -EINVAL;
diff --git a/mm/madvise.c b/mm/madvise.c
index 49a1ff53ccdb4..8e8630c481673 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -63,7 +63,7 @@ static int madvise_need_mmap_write(int behavior)
 }
 
 #ifdef CONFIG_ANON_VMA_NAME
-static struct anon_vma_name *anon_vma_name_alloc(const char *name)
+struct anon_vma_name *anon_vma_name_alloc(const char *name)
 {
 	struct anon_vma_name *anon_name;
 	size_t count;
@@ -79,78 +79,49 @@ static struct anon_vma_name *anon_vma_name_alloc(const char *name)
 	return anon_name;
 }
 
-static void vma_anon_name_free(struct kref *kref)
+void anon_vma_name_free(struct kref *kref)
 {
 	struct anon_vma_name *anon_name =
 			container_of(kref, struct anon_vma_name, kref);
 	kfree(anon_name);
 }
 
-static inline bool has_vma_anon_name(struct vm_area_struct *vma)
+struct anon_vma_name *anon_vma_name(struct vm_area_struct *vma)
 {
-	return !vma->vm_file && vma->anon_name;
-}
-
-const char *vma_anon_name(struct vm_area_struct *vma)
-{
-	if (!has_vma_anon_name(vma))
-		return NULL;
-
 	mmap_assert_locked(vma->vm_mm);
 
-	return vma->anon_name->name;
-}
-
-void dup_vma_anon_name(struct vm_area_struct *orig_vma,
-		       struct vm_area_struct *new_vma)
-{
-	if (!has_vma_anon_name(orig_vma))
-		return;
-
-	kref_get(&orig_vma->anon_name->kref);
-	new_vma->anon_name = orig_vma->anon_name;
-}
-
-void free_vma_anon_name(struct vm_area_struct *vma)
-{
-	struct anon_vma_name *anon_name;
-
-	if (!has_vma_anon_name(vma))
-		return;
+	if (vma->vm_file)
+		return NULL;
 
-	anon_name = vma->anon_name;
-	vma->anon_name = NULL;
-	kref_put(&anon_name->kref, vma_anon_name_free);
+	return vma->anon_name;
 }
 
 /* mmap_lock should be write-locked */
-static int replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
+static int replace_anon_vma_name(struct vm_area_struct *vma,
+				 struct anon_vma_name *anon_name)
 {
-	const char *anon_name;
+	struct anon_vma_name *orig_name = anon_vma_name(vma);
 
-	if (!name) {
-		free_vma_anon_name(vma);
+	if (!anon_name) {
+		vma->anon_name = NULL;
+		anon_vma_name_put(orig_name);
 		return 0;
 	}
 
-	anon_name = vma_anon_name(vma);
-	if (anon_name) {
-		/* Same name, nothing to do here */
-		if (!strcmp(name, anon_name))
-			return 0;
+	if (anon_vma_name_eq(orig_name, anon_name))
+		return 0;
 
-		free_vma_anon_name(vma);
-	}
-	vma->anon_name = anon_vma_name_alloc(name);
-	if (!vma->anon_name)
-		return -ENOMEM;
+	anon_vma_name_get(anon_name);
+	vma->anon_name = anon_name;
+	anon_vma_name_put(orig_name);
 
 	return 0;
 }
 #else /* CONFIG_ANON_VMA_NAME */
-static int replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
+static int replace_anon_vma_name(struct vm_area_struct *vma,
+				 struct anon_vma_name *anon_name)
 {
-	if (name)
+	if (anon_name)
 		return -EINVAL;
 
 	return 0;
@@ -163,13 +134,13 @@ static int replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
 static int madvise_update_vma(struct vm_area_struct *vma,
 			      struct vm_area_struct **prev, unsigned long start,
 			      unsigned long end, unsigned long new_flags,
-			      const char *name)
+			      struct anon_vma_name *anon_name)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	int error;
 	pgoff_t pgoff;
 
-	if (new_flags == vma->vm_flags && is_same_vma_anon_name(vma, name)) {
+	if (new_flags == vma->vm_flags && anon_vma_name_eq(anon_vma_name(vma), anon_name)) {
 		*prev = vma;
 		return 0;
 	}
@@ -177,7 +148,7 @@ static int madvise_update_vma(struct vm_area_struct *vma,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, new_flags, vma->anon_vma,
 			  vma->vm_file, pgoff, vma_policy(vma),
-			  vma->vm_userfaultfd_ctx, name);
+			  vma->vm_userfaultfd_ctx, anon_name);
 	if (*prev) {
 		vma = *prev;
 		goto success;
@@ -209,7 +180,7 @@ success:
 	WRITE_ONCE(vma->vm_flags, new_flags);
 	vm_write_end(vma);
 	if (!vma->vm_file) {
-		error = replace_vma_anon_name(vma, name);
+		error = replace_anon_vma_name(vma, anon_name);
 		if (error)
 			return error;
 	}
@@ -986,7 +957,7 @@ static int madvise_vma_behavior(struct vm_area_struct *vma,
 	}
 
 	error = madvise_update_vma(vma, prev, start, end, new_flags,
-				   vma_anon_name(vma));
+				   anon_vma_name(vma));
 
 out:
 	/*
@@ -1172,7 +1143,7 @@ int madvise_walk_vmas(struct mm_struct *mm, unsigned long start,
 static int madvise_vma_anon_name(struct vm_area_struct *vma,
 				 struct vm_area_struct **prev,
 				 unsigned long start, unsigned long end,
-				 unsigned long name)
+				 unsigned long anon_name)
 {
 	int error;
 
@@ -1181,7 +1152,7 @@ static int madvise_vma_anon_name(struct vm_area_struct *vma,
 		return -EBADF;
 
 	error = madvise_update_vma(vma, prev, start, end, vma->vm_flags,
-				   (const char *)name);
+				   (struct anon_vma_name *)anon_name);
 
 	/*
 	 * madvise() returns EAGAIN if kernel resources, such as
@@ -1193,7 +1164,7 @@ static int madvise_vma_anon_name(struct vm_area_struct *vma,
 }
 
 int madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
-			  unsigned long len_in, const char *name)
+			  unsigned long len_in, struct anon_vma_name *anon_name)
 {
 	unsigned long end;
 	unsigned long len;
@@ -1213,7 +1184,7 @@ int madvise_set_anon_name(struct mm_struct *mm, unsigned long start,
 	if (end == start)
 		return 0;
 
-	return madvise_walk_vmas(mm, start, end, (unsigned long)name,
+	return madvise_walk_vmas(mm, start, end, (unsigned long)anon_name,
 				 madvise_vma_anon_name);
 }
 #endif /* CONFIG_ANON_VMA_NAME */
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 51c27b8ba1dc5..3b2584088d281 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -842,7 +842,7 @@ static int mbind_range(struct mm_struct *mm, unsigned long start,
 		prev = vma_merge(mm, prev, vmstart, vmend, vma->vm_flags,
 				 vma->anon_vma, vma->vm_file, pgoff,
 				 new_pol, vma->vm_userfaultfd_ctx,
-				 vma_anon_name(vma));
+				 anon_vma_name(vma));
 		if (prev) {
 			vma = prev;
 			next = vma->vm_next;
diff --git a/mm/mlock.c b/mm/mlock.c
index a90b46d863346..225c6294fd25e 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -550,7 +550,7 @@ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*prev = vma_merge(mm, *prev, start, end, newflags, vma->anon_vma,
 			  vma->vm_file, pgoff, vma_policy(vma),
-			  vma->vm_userfaultfd_ctx, vma_anon_name(vma));
+			  vma->vm_userfaultfd_ctx, anon_vma_name(vma));
 	if (*prev) {
 		vma = *prev;
 		goto success;
diff --git a/mm/mmap.c b/mm/mmap.c
index 6233a6cd8df14..cb5fded3aa0b4 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1084,7 +1084,7 @@ again:
 static inline int is_mergeable_vma(struct vm_area_struct *vma,
 				struct file *file, unsigned long vm_flags,
 				struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-				const char *anon_name)
+				struct anon_vma_name *anon_name)
 {
 	/*
 	 * VM_SOFTDIRTY should not prevent from VMA merging, if we
@@ -1102,7 +1102,7 @@ static inline int is_mergeable_vma(struct vm_area_struct *vma,
 		return 0;
 	if (!is_mergeable_vm_userfaultfd_ctx(vma, vm_userfaultfd_ctx))
 		return 0;
-	if (!is_same_vma_anon_name(vma, anon_name))
+	if (!anon_vma_name_eq(anon_vma_name(vma), anon_name))
 		return 0;
 	return 1;
 }
@@ -1137,7 +1137,7 @@ can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags,
 		     struct anon_vma *anon_vma, struct file *file,
 		     pgoff_t vm_pgoff,
 		     struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-		     const char *anon_name)
+		     struct anon_vma_name *anon_name)
 {
 	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
@@ -1159,7 +1159,7 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
 		    struct anon_vma *anon_vma, struct file *file,
 		    pgoff_t vm_pgoff,
 		    struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-		    const char *anon_name)
+		    struct anon_vma_name *anon_name)
 {
 	if (is_mergeable_vma(vma, file, vm_flags, vm_userfaultfd_ctx, anon_name) &&
 	    is_mergeable_anon_vma(anon_vma, vma->anon_vma, vma)) {
@@ -1220,7 +1220,7 @@ struct vm_area_struct *__vma_merge(struct mm_struct *mm,
 			struct anon_vma *anon_vma, struct file *file,
 			pgoff_t pgoff, struct mempolicy *policy,
 			struct vm_userfaultfd_ctx vm_userfaultfd_ctx,
-			const char *anon_name, bool keep_locked)
+			struct anon_vma_name *anon_name, bool keep_locked)
 {
 	pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
 	struct vm_area_struct *area, *next;
@@ -3410,7 +3410,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	new_vma = __vma_merge(mm, prev, addr, addr + len, vma->vm_flags,
 			      vma->anon_vma, vma->vm_file, pgoff,
 			      vma_policy(vma), vma->vm_userfaultfd_ctx,
-			      vma_anon_name(vma), true);
+			      anon_vma_name(vma), true);
 	if (new_vma) {
 		/*
 		 * Source vma may have been merged into new_vma
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 02886b6617198..b7f744ce02953 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -454,7 +454,7 @@ mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev,
 	pgoff = vma->vm_pgoff + ((start - vma->vm_start) >> PAGE_SHIFT);
 	*pprev = vma_merge(mm, *pprev, start, end, newflags,
 			   vma->anon_vma, vma->vm_file, pgoff, vma_policy(vma),
-			   vma->vm_userfaultfd_ctx, vma_anon_name(vma));
+			   vma->vm_userfaultfd_ctx, anon_vma_name(vma));
 	if (*pprev) {
 		vma = *pprev;
 		VM_WARN_ON((vma->vm_flags ^ newflags) & ~VM_SOFTDIRTY);
-- 
GitLab


From 6962eb33d89374302d97a9a14cf1c6c9b42dd64f Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 4 Mar 2022 20:28:55 -0800
Subject: [PATCH 4625/4878] UPSTREAM: mm: prevent vm_area_struct::anon_name
 refcount saturation

A deep process chain with many vmas could grow really high.  With
default sysctl_max_map_count (64k) and default pid_max (32k) the max
number of vmas in the system is 2147450880 and the refcounter has
headroom of 1073774592 before it reaches REFCOUNT_SATURATED
(3221225472).

Therefore it's unlikely that an anonymous name refcounter will overflow
with these defaults.  Currently the max for pid_max is PID_MAX_LIMIT
(4194304) and for sysctl_max_map_count it's INT_MAX (2147483647).  In
this configuration anon_vma_name refcount overflow becomes theoretically
possible (that still require heavy sharing of that anon_vma_name between
processes).

kref refcounting interface used in anon_vma_name structure will detect a
counter overflow when it reaches REFCOUNT_SATURATED value but will only
generate a warning and freeze the ref counter.  This would lead to the
refcounted object never being freed.  A determined attacker could leak
memory like that but it would be rather expensive and inefficient way to
do so.

To ensure anon_vma_name refcount does not overflow, stop anon_vma_name
sharing when the refcount reaches REFCOUNT_MAX (2147483647), which still
leaves INT_MAX/2 (1073741823) values before the counter reaches
REFCOUNT_SATURATED.  This should provide enough headroom for raising the
refcounts temporarily.

Link: https://lkml.kernel.org/r/20220223153613.835563-2-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Chris Hyser <chris.hyser@oracle.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Colin Cross <ccross@google.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xiaofeng Cao <caoxiaofeng@yulong.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 96403e11283def1d1c465c8279514c9a504d8630)

Bug: 218352794
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ieaab58f6300d9aff3139eed1c1d3417237d81955
---
 include/linux/mm_inline.h | 18 ++++++++++++++----
 mm/madvise.c              |  3 +--
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index e733fcf083346..de031b0f1aec2 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -150,15 +150,25 @@ static inline void anon_vma_name_put(struct anon_vma_name *anon_name)
 		kref_put(&anon_name->kref, anon_vma_name_free);
 }
 
+static inline
+struct anon_vma_name *anon_vma_name_reuse(struct anon_vma_name *anon_name)
+{
+	/* Prevent anon_name refcount saturation early on */
+	if (kref_read(&anon_name->kref) < REFCOUNT_MAX) {
+		anon_vma_name_get(anon_name);
+		return anon_name;
+
+	}
+	return anon_vma_name_alloc(anon_name->name);
+}
+
 static inline void dup_anon_vma_name(struct vm_area_struct *orig_vma,
 				     struct vm_area_struct *new_vma)
 {
 	struct anon_vma_name *anon_name = anon_vma_name(orig_vma);
 
-	if (anon_name) {
-		anon_vma_name_get(anon_name);
-		new_vma->anon_name = anon_name;
-	}
+	if (anon_name)
+		new_vma->anon_name = anon_vma_name_reuse(anon_name);
 }
 
 static inline void free_anon_vma_name(struct vm_area_struct *vma)
diff --git a/mm/madvise.c b/mm/madvise.c
index 8e8630c481673..0d26ec057f47c 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -111,8 +111,7 @@ static int replace_anon_vma_name(struct vm_area_struct *vma,
 	if (anon_vma_name_eq(orig_name, anon_name))
 		return 0;
 
-	anon_vma_name_get(anon_name);
-	vma->anon_name = anon_name;
+	vma->anon_name = anon_vma_name_reuse(anon_name);
 	anon_vma_name_put(orig_name);
 
 	return 0;
-- 
GitLab


From 4443600ce167ab3ab5c6ea734647d52e57421ecc Mon Sep 17 00:00:00 2001
From: Suren Baghdasaryan <surenb@google.com>
Date: Fri, 4 Mar 2022 20:28:58 -0800
Subject: [PATCH 4626/4878] UPSTREAM: mm: fix use-after-free when anon vma name
 is used after vma is freed

When adjacent vmas are being merged it can result in the vma that was
originally passed to madvise_update_vma being destroyed.  In the current
implementation, the name parameter passed to madvise_update_vma points
directly to vma->anon_name and it is used after the call to vma_merge.
In the cases when vma_merge merges the original vma and destroys it,
this might result in UAF.  For that the original vma would have to hold
the anon_vma_name with the last reference.  The following vma would need
to contain a different anon_vma_name object with the same string.  Such
scenario is shown below:

madvise_vma_behavior(vma)
  madvise_update_vma(vma, ..., anon_name == vma->anon_name)
    vma_merge(vma)
      __vma_adjust(vma) <-- merges vma with adjacent one
        vm_area_free(vma) <-- frees the original vma
    replace_vma_anon_name(anon_name) <-- UAF of vma->anon_name

Fix this by raising the name refcount and stabilizing it.

Link: https://lkml.kernel.org/r/20220224231834.1481408-3-surenb@google.com
Link: https://lkml.kernel.org/r/20220223153613.835563-3-surenb@google.com
Fixes: 9a10064f5625 ("mm: add a field to store names for private anonymous memory")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reported-by: syzbot+aa7b3d4b35f9dc46a366@syzkaller.appspotmail.com
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Chris Hyser <chris.hyser@oracle.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Colin Cross <ccross@google.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xiaofeng Cao <caoxiaofeng@yulong.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 942341dcc5748d9c1fc7009a359fc1916bfe0ef0)

Bug: 218352794
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I07e3cbff2eaa69a0d56281537510f7a42feaaf09
---
 mm/madvise.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index 0d26ec057f47c..a1281c795292d 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -129,6 +129,8 @@ static int replace_anon_vma_name(struct vm_area_struct *vma,
 /*
  * Update the vm_flags on region of a vma, splitting it or merging it as
  * necessary.  Must be called with mmap_sem held for writing;
+ * Caller should ensure anon_name stability by raising its refcount even when
+ * anon_name belongs to a valid vma because this function might free that vma.
  */
 static int madvise_update_vma(struct vm_area_struct *vma,
 			      struct vm_area_struct **prev, unsigned long start,
@@ -893,6 +895,7 @@ static int madvise_vma_behavior(struct vm_area_struct *vma,
 				unsigned long behavior)
 {
 	int error;
+	struct anon_vma_name *anon_name;
 	unsigned long new_flags = vma->vm_flags;
 
 	switch (behavior) {
@@ -955,8 +958,11 @@ static int madvise_vma_behavior(struct vm_area_struct *vma,
 		break;
 	}
 
+	anon_name = anon_vma_name(vma);
+	anon_vma_name_get(anon_name);
 	error = madvise_update_vma(vma, prev, start, end, new_flags,
-				   anon_vma_name(vma));
+				   anon_name);
+	anon_vma_name_put(anon_name);
 
 out:
 	/*
-- 
GitLab


From 83631772f3ebd22e9b8f9393d48601fa3d46b46d Mon Sep 17 00:00:00 2001
From: Aran Dalton <arda@allwinnertech.com>
Date: Mon, 7 Mar 2022 17:34:34 +0800
Subject: [PATCH 4627/4878] ANDROID: usb: gadget: f_accessory: add compat_ioctl
 support

On Android 32-bit system, the following Cts Verifier testcase failed:

manualTests#com.android.cts.verifier.usb.accessory.UsbAccessoryTestActivity

The reason is that compat_ioctl() needs to be called.
So let's add compat_ioctl() for 32-bit applications to solve this issue.

Bug: 223101878
Change-Id: I6e1f797d919494d293184411041955c33ad08aef
Signed-off-by: Aran Dalton <arda@allwinnertech.com>
(cherry picked from commit 77bf53b4861491ad49414d8fceefda2602274519)
---
 drivers/usb/gadget/function/f_accessory.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/function/f_accessory.c b/drivers/usb/gadget/function/f_accessory.c
index 66a603f3327d6..3510f6d39f0c3 100644
--- a/drivers/usb/gadget/function/f_accessory.c
+++ b/drivers/usb/gadget/function/f_accessory.c
@@ -931,6 +931,7 @@ static const struct file_operations acc_fops = {
 	.read = acc_read,
 	.write = acc_write,
 	.unlocked_ioctl = acc_ioctl,
+	.compat_ioctl = acc_ioctl,
 	.open = acc_open,
 	.release = acc_release,
 };
-- 
GitLab


From 373e5bd7d4b53389518c26e0e1598dc8026d7d01 Mon Sep 17 00:00:00 2001
From: Bowgo Tsai <bowgotsai@google.com>
Date: Fri, 25 Mar 2022 14:32:46 +0800
Subject: [PATCH 4628/4878] ANDROID: GKI: Enable BUILD_GKI_CERTIFICATION_TOOLS

Bug: 222082632
Test: TH
Signed-off-by: Bowgo Tsai <bowgotsai@google.com>
Change-Id: I29aa163a8de8d60c103aad642f306ad5d4b92d40
---
 build.config.gki.aarch64 | 2 ++
 build.config.gki.x86_64  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/build.config.gki.aarch64 b/build.config.gki.aarch64
index ad0078a7fee7f..2e7f202446bf3 100644
--- a/build.config.gki.aarch64
+++ b/build.config.gki.aarch64
@@ -35,3 +35,5 @@ MODULES_ORDER=android/gki_aarch64_modules
 if [ -n "${GKI_DEFCONFIG_FRAGMENT}" ]; then
 source ${GKI_DEFCONFIG_FRAGMENT}
 fi
+
+BUILD_GKI_CERTIFICATION_TOOLS=1
diff --git a/build.config.gki.x86_64 b/build.config.gki.x86_64
index b8f7773108e40..739ae0b86e0d2 100644
--- a/build.config.gki.x86_64
+++ b/build.config.gki.x86_64
@@ -4,3 +4,5 @@
 
 BUILD_SYSTEM_DLKM=1
 MODULES_LIST=${ROOT_DIR}/${KERNEL_DIR}/android/gki_system_dlkm_modules
+
+BUILD_GKI_CERTIFICATION_TOOLS=1
-- 
GitLab


From 5c6f14f1465ea62da5e0af30266f9c710b02f9d2 Mon Sep 17 00:00:00 2001
From: Siddharth Kapoor <ksiddharth@google.com>
Date: Fri, 25 Mar 2022 22:38:05 +0800
Subject: [PATCH 4629/4878] ANDROID: Update the ABI symbol list

Leaf changes summary: 0 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 0 Removed, 1 Added function symbol not referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not referenced by debug info

1 Added function symbol not referenced by debug info:

  [A] memchr

Bug: 220942030
Signed-off-by: Siddharth Kapoor <ksiddharth@google.com>
Change-Id: If972ccefd136c76871fece6be793db36e76e42e0
---
 android/abi_gki_aarch64.xml     | 1 +
 android/abi_gki_aarch64_generic | 1 +
 2 files changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 564e59ae04217..48e0b304fbfee 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -2056,6 +2056,7 @@
       <elf-symbol name='mbox_free_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b128769'/>
       <elf-symbol name='mbox_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x669f6337'/>
       <elf-symbol name='mbox_send_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f6b5ac1'/>
+      <elf-symbol name='memchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xa07a37f0'/>
       <elf-symbol name='memchr_inv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df92f66'/>
       <elf-symbol name='memcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x449ad0a7'/>
       <elf-symbol name='memcpy' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x4829a47e'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index e8e9aa1252c50..d23b147cbf1af 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1231,6 +1231,7 @@
   mbox_free_channel
   mbox_request_channel
   mbox_send_message
+  memchr
   memcmp
   memcpy
   __memcpy_fromio
-- 
GitLab


From dbba49b6cb98b8a9c9953f675848622cb3bc956e Mon Sep 17 00:00:00 2001
From: Marc Zyngier <mzyngier@google.com>
Date: Fri, 25 Mar 2022 16:10:23 +0000
Subject: [PATCH 4630/4878] ANDROID: KVM: arm64: Handle all ID registers
 trapped for a protected VM

A protected VM accessing ID_AA64ISAR2_EL1 gets punished with an UNDEF,
while it really should only get a zero back if the register is not
handled by the hypervisor emulation (as mandated by the architecture).

Introduce all the missing ID registers (including the unallocated ones),
and have them to return 0.

Bug: 226913064
Reported-by: Will Deacon <willdeacon@google.com>
Signed-off-by: Marc Zyngier <mzyngier@google.com>
Change-Id: I1f8de324af8a47974e6ab6b0bf68c8e1b01c4baf
---
 arch/arm64/kvm/hyp/nvhe/sys_regs.c | 42 ++++++++++++++++++++++++------
 1 file changed, 34 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 024e663305846..1729b4d6059e0 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -232,15 +232,9 @@ u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu, u32 id)
 	case SYS_ID_AA64MMFR2_EL1:
 		return get_pvm_id_aa64mmfr2(vcpu);
 	default:
-		/*
-		 * Should never happen because all cases are covered in
-		 * pvm_sys_reg_descs[].
-		 */
-		WARN_ON(1);
-		break;
+		/* Unhandled ID register, RAZ */
+		return 0;
 	}
-
-	return 0;
 }
 
 static u64 read_id_reg(const struct kvm_vcpu *vcpu,
@@ -321,6 +315,16 @@ static bool pvm_gic_read_sre(struct kvm_vcpu *vcpu,
 /* Mark the specified system register as an AArch64 feature id register. */
 #define AARCH64(REG) { SYS_DESC(REG), .access = pvm_access_id_aarch64 }
 
+/*
+ * sys_reg_desc initialiser for architecturally unallocated cpufeature ID
+ * register with encoding Op0=3, Op1=0, CRn=0, CRm=crm, Op2=op2
+ * (1 <= crm < 8, 0 <= Op2 < 8).
+ */
+#define ID_UNALLOCATED(crm, op2) {			\
+	Op0(3), Op1(0), CRn(0), CRm(crm), Op2(op2),	\
+	.access = pvm_access_id_aarch64,		\
+}
+
 /* Mark the specified system register as Read-As-Zero/Write-Ignored */
 #define RAZ_WI(REG) { SYS_DESC(REG), .access = pvm_access_raz_wi }
 
@@ -375,24 +379,46 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
 	AARCH32(SYS_MVFR0_EL1),
 	AARCH32(SYS_MVFR1_EL1),
 	AARCH32(SYS_MVFR2_EL1),
+	ID_UNALLOCATED(3,3),
 	AARCH32(SYS_ID_PFR2_EL1),
 	AARCH32(SYS_ID_DFR1_EL1),
 	AARCH32(SYS_ID_MMFR5_EL1),
+	ID_UNALLOCATED(3,7),
 
 	/* AArch64 ID registers */
 	/* CRm=4 */
 	AARCH64(SYS_ID_AA64PFR0_EL1),
 	AARCH64(SYS_ID_AA64PFR1_EL1),
+	ID_UNALLOCATED(4,2),
+	ID_UNALLOCATED(4,3),
 	AARCH64(SYS_ID_AA64ZFR0_EL1),
+	ID_UNALLOCATED(4,5),
+	ID_UNALLOCATED(4,6),
+	ID_UNALLOCATED(4,7),
 	AARCH64(SYS_ID_AA64DFR0_EL1),
 	AARCH64(SYS_ID_AA64DFR1_EL1),
+	ID_UNALLOCATED(5,2),
+	ID_UNALLOCATED(5,3),
 	AARCH64(SYS_ID_AA64AFR0_EL1),
 	AARCH64(SYS_ID_AA64AFR1_EL1),
+	ID_UNALLOCATED(5,6),
+	ID_UNALLOCATED(5,7),
 	AARCH64(SYS_ID_AA64ISAR0_EL1),
 	AARCH64(SYS_ID_AA64ISAR1_EL1),
+	AARCH64(SYS_ID_AA64ISAR2_EL1),
+	ID_UNALLOCATED(6,3),
+	ID_UNALLOCATED(6,4),
+	ID_UNALLOCATED(6,5),
+	ID_UNALLOCATED(6,6),
+	ID_UNALLOCATED(6,7),
 	AARCH64(SYS_ID_AA64MMFR0_EL1),
 	AARCH64(SYS_ID_AA64MMFR1_EL1),
 	AARCH64(SYS_ID_AA64MMFR2_EL1),
+	ID_UNALLOCATED(7,3),
+	ID_UNALLOCATED(7,4),
+	ID_UNALLOCATED(7,5),
+	ID_UNALLOCATED(7,6),
+	ID_UNALLOCATED(7,7),
 
 	/* Scalable Vector Registers are restricted. */
 
-- 
GitLab


From 40493bc91e4984de175f4f06a903ab4dfe8296f6 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Fri, 25 Mar 2022 17:58:43 +0000
Subject: [PATCH 4631/4878] ANDROID: KVM: arm64: Check pin_user_pages() return
 value

Let's check the return value of pin_user_pages() before blindly
dereferencing the struct page pointer as it may very well be NULL.

Bug: 223678931
Reported-by: Keir Fraser <keirf@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: I49eb0eb14b88429cfeed3e7cc8a2a72404cfea97
---
 arch/arm64/kvm/mmu.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 79fb8a43ac5b6..8e8d90831c3d0 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1189,28 +1189,28 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	ret = pin_user_pages(hva, 1, flags, &page, NULL);
 	mmap_read_unlock(mm);
 
-	/*
-	 * We really can't deal with page-cache pages returned by GUP
-	 * because (a) we may trigger writeback of a page for which we
-	 * no longer have access and (b) page_mkclean() won't find the
-	 * stage-2 mapping in the rmap so we can get out-of-whack with
-	 * the filesystem when marking the page dirty during unpinning.
-	 *
-	 * Ideally we'd just restrict ourselves to anonymous pages, but
-	 * we also want to allow memfd (i.e. shmem) pages, so check for
-	 * pages backed by swap in the knowledge that the GUP pin will
-	 * prevent try_to_unmap() from succeeding.
-	 */
-	if (!PageSwapBacked(page)) {
-		ret = -EIO;
-		goto dec_account;
-	} else if (ret == -EHWPOISON) {
+	if (ret == -EHWPOISON) {
 		kvm_send_hwpoison_signal(hva, PAGE_SHIFT);
 		ret = 0;
 		goto dec_account;
 	} else if (ret != 1) {
 		ret = -EFAULT;
 		goto dec_account;
+	} else if (!PageSwapBacked(page)) {
+		/*
+		 * We really can't deal with page-cache pages returned by GUP
+		 * because (a) we may trigger writeback of a page for which we
+		 * no longer have access and (b) page_mkclean() won't find the
+		 * stage-2 mapping in the rmap so we can get out-of-whack with
+		 * the filesystem when marking the page dirty during unpinning.
+		 *
+		 * Ideally we'd just restrict ourselves to anonymous pages, but
+		 * we also want to allow memfd (i.e. shmem) pages, so check for
+		 * pages backed by swap in the knowledge that the GUP pin will
+		 * prevent try_to_unmap() from succeeding.
+		 */
+		ret = -EIO;
+		goto dec_account;
 	}
 
 	spin_lock(&kvm->mmu_lock);
-- 
GitLab


From ba73e0b827383ff4ede2036f5bae8424896139f3 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 25 Mar 2022 15:01:38 +0000
Subject: [PATCH 4632/4878] ANDROID: KVM: arm64: Use PSCI MEM_PROTECT to zap
 guest pages on reset

If a malicious/compromised host issues a PSCI SYSTEM_RESET call in the
presence of guest-owned pages then the contents of those pages may be
susceptible to cold-reboot attacks.

Use the PSCI MEM_PROTECT call to ensure that volatile memory is wiped by
the firmware if a SYSTEM_RESET occurs while unpoisoned guest pages exist
in the system. Since this call does not offer protection for a "warm"
reset initiated by SYSTEM_RESET2, detect this case in the PSCI relay and
repaint the call to a standard SYSTEM_RESET instead.

Bug: 196204410
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I5c3dd93bc83ebcd0b6cea2ec734f6e3a77f0064e
---
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  3 ++
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 13 ++++--
 arch/arm64/kvm/hyp/nvhe/psci-relay.c          | 45 +++++++++++++++++++
 include/uapi/linux/psci.h                     |  2 +
 4 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 3f4f90f55c5c4..e796ff5e74fb1 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -91,6 +91,9 @@ int refill_memcache(struct kvm_hyp_memcache *mc, unsigned long min_pages,
 		    struct kvm_hyp_memcache *host_mc);
 void reclaim_guest_pages(struct kvm_shadow_vm *vm, struct kvm_hyp_memcache *mc);
 
+void psci_mem_protect_inc(void);
+void psci_mem_protect_dec(void);
+
 static __always_inline void __load_host_stage2(void)
 {
 	if (static_branch_likely(&kvm_protected_mode_initialized))
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 750eab9678f93..bff50d7c63b52 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -1073,10 +1073,14 @@ static int guest_complete_donation(u64 addr, const struct pkvm_mem_transition *t
 	u64 size = tx->nr_pages * PAGE_SIZE;
 	int err;
 
-	if (tx->initiator.id == PKVM_ID_HOST && ipa_in_pvmfw_region(vm, addr)) {
-		err = pkvm_load_pvmfw_pages(vm, addr, phys, size);
-		if (err)
-			return err;
+	if (tx->initiator.id == PKVM_ID_HOST) {
+		psci_mem_protect_inc();
+
+		if (ipa_in_pvmfw_region(vm, addr)) {
+			err = pkvm_load_pvmfw_pages(vm, addr, phys, size);
+			if (err)
+				return err;
+		}
 	}
 
 	return kvm_pgtable_stage2_map(&vm->pgt, addr, size, phys, prot,
@@ -1893,6 +1897,7 @@ int __pkvm_host_reclaim_page(u64 pfn)
 		if (ret)
 			goto unlock;
 		page->flags &= ~HOST_PAGE_NEED_POISONING;
+		psci_mem_protect_dec();
 	}
 
 	ret = host_stage2_set_owner_locked(addr, PAGE_SIZE, pkvm_host_id);
diff --git a/arch/arm64/kvm/hyp/nvhe/psci-relay.c b/arch/arm64/kvm/hyp/nvhe/psci-relay.c
index cee6d4a2821fd..85f7cad956d54 100644
--- a/arch/arm64/kvm/hyp/nvhe/psci-relay.c
+++ b/arch/arm64/kvm/hyp/nvhe/psci-relay.c
@@ -222,6 +222,44 @@ asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on)
 	__host_enter(host_ctxt);
 }
 
+static DEFINE_HYP_SPINLOCK(mem_protect_lock);
+
+static u64 psci_mem_protect(s64 offset)
+{
+	static u64 cnt;
+	u64 new = cnt + offset;
+
+	hyp_assert_lock_held(&mem_protect_lock);
+
+	if (!offset || kvm_host_psci_config.version < PSCI_VERSION(1, 1))
+		return cnt;
+
+	if (!cnt || !new)
+		psci_call(PSCI_1_1_FN64_MEM_PROTECT, offset < 0 ? 0 : 1, 0, 0);
+
+	cnt = new;
+	return cnt;
+}
+
+static bool psci_mem_protect_active(void)
+{
+	return psci_mem_protect(0);
+}
+
+void psci_mem_protect_inc(void)
+{
+	hyp_spin_lock(&mem_protect_lock);
+	psci_mem_protect(1);
+	hyp_spin_unlock(&mem_protect_lock);
+}
+
+void psci_mem_protect_dec(void)
+{
+	hyp_spin_lock(&mem_protect_lock);
+	psci_mem_protect(-1);
+	hyp_spin_unlock(&mem_protect_lock);
+}
+
 static unsigned long psci_0_1_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)
 {
 	if (is_psci_0_1(cpu_off, func_id) || is_psci_0_1(migrate, func_id))
@@ -251,6 +289,8 @@ static unsigned long psci_0_2_handler(u64 func_id, struct kvm_cpu_context *host_
 	case PSCI_0_2_FN_SYSTEM_OFF:
 	case PSCI_0_2_FN_SYSTEM_RESET:
 		pkvm_clear_pvmfw_pages();
+		/* Avoid racing with a MEM_PROTECT call. */
+		hyp_spin_lock(&mem_protect_lock);
 		return psci_forward(host_ctxt);
 	case PSCI_0_2_FN64_CPU_SUSPEND:
 		return psci_cpu_suspend(func_id, host_ctxt);
@@ -266,6 +306,11 @@ static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_
 	switch (func_id) {
 	case PSCI_1_1_FN64_SYSTEM_RESET2:
 		pkvm_clear_pvmfw_pages();
+		hyp_spin_lock(&mem_protect_lock);
+		if (psci_mem_protect_active()) {
+			return psci_0_2_handler(PSCI_0_2_FN_SYSTEM_RESET,
+						host_ctxt);
+		}
 		fallthrough;
 	case PSCI_1_0_FN_PSCI_FEATURES:
 	case PSCI_1_0_FN_SET_SUSPEND_MODE:
diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h
index 2bf93c0d6354b..b1484a5a3c360 100644
--- a/include/uapi/linux/psci.h
+++ b/include/uapi/linux/psci.h
@@ -55,6 +55,8 @@
 #define PSCI_1_0_FN64_SYSTEM_SUSPEND		PSCI_0_2_FN64(14)
 #define PSCI_1_1_FN64_SYSTEM_RESET2		PSCI_0_2_FN64(18)
 
+#define PSCI_1_1_FN64_MEM_PROTECT		PSCI_0_2_FN64(19)
+
 /* PSCI v0.2 power state encoding for CPU_SUSPEND function */
 #define PSCI_0_2_POWER_STATE_ID_MASK		0xffff
 #define PSCI_0_2_POWER_STATE_ID_SHIFT		0
-- 
GitLab


From 91c32ff1fe6c975117d858996c032536e1344794 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 22 Mar 2022 14:31:37 +0000
Subject: [PATCH 4633/4878] ANDROID: KVM: arm64: Add is_pkvm_initialized()
 helper

Add a helper allowing to check when the pkvm static key is enabled to
ease the introduction of pkvm hooks in other parts of the code.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 215520143
Change-Id: Iae065b09bb33d42d73a408365c803727269d0de0
---
 arch/arm64/include/asm/virt.h | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index 3218ca17f819e..8bc48dec69528 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -72,6 +72,12 @@ void __hyp_reset_vectors(void);
 
 DECLARE_STATIC_KEY_FALSE(kvm_protected_mode_initialized);
 
+static inline bool is_pkvm_initialized(void)
+{
+	return IS_ENABLED(CONFIG_KVM) &&
+	       static_branch_likely(&kvm_protected_mode_initialized);
+}
+
 /* Reports the availability of HYP mode */
 static inline bool is_hyp_mode_available(void)
 {
@@ -79,8 +85,7 @@ static inline bool is_hyp_mode_available(void)
 	 * If KVM protected mode is initialized, all CPUs must have been booted
 	 * in EL2. Avoid checking __boot_cpu_mode as CPUs now come up in EL1.
 	 */
-	if (IS_ENABLED(CONFIG_KVM) &&
-	    static_branch_likely(&kvm_protected_mode_initialized))
+	if (is_pkvm_initialized())
 		return true;
 
 	return (__boot_cpu_mode[0] == BOOT_CPU_MODE_EL2 &&
@@ -94,8 +99,7 @@ static inline bool is_hyp_mode_mismatched(void)
 	 * If KVM protected mode is initialized, all CPUs must have been booted
 	 * in EL2. Avoid checking __boot_cpu_mode as CPUs now come up in EL1.
 	 */
-	if (IS_ENABLED(CONFIG_KVM) &&
-	    static_branch_likely(&kvm_protected_mode_initialized))
+	if (is_pkvm_initialized())
 		return false;
 
 	return __boot_cpu_mode[0] != __boot_cpu_mode[1];
-- 
GitLab


From e7b80adac2b8b5c6efe0a05929cfeb16422f69cc Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 22 Mar 2022 14:33:37 +0000
Subject: [PATCH 4634/4878] ANDROID: KVM: arm64: Refactor enter_exception64()

In order to simplify the injection of exceptions in the host in pkvm
context, let's factor out of enter_exception64() the code calculating
the exception offset from VBAR_EL1 and the cpsr.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 215520143
Change-Id: I97b2431a79fdec87c95c2d1f691bd3a11635c29b
---
 arch/arm64/include/asm/kvm_emulate.h |  5 ++
 arch/arm64/kvm/hyp/exception.c       | 89 ++++++++++++++++------------
 2 files changed, 57 insertions(+), 37 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index 7e0ff042be886..f583373ff8abe 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -41,6 +41,11 @@ void kvm_inject_vabt(struct kvm_vcpu *vcpu);
 void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);
 void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
 
+unsigned long get_except64_offset(unsigned long psr, unsigned long target_mode,
+				  enum exception_type type);
+unsigned long get_except64_cpsr(unsigned long old, bool has_mte,
+				unsigned long sctlr, unsigned long mode);
+
 static inline int kvm_vcpu_enable_ptrauth(struct kvm_vcpu *vcpu)
 {
 	/*
diff --git a/arch/arm64/kvm/hyp/exception.c b/arch/arm64/kvm/hyp/exception.c
index c5d0097154020..14a80b0e2f91d 100644
--- a/arch/arm64/kvm/hyp/exception.c
+++ b/arch/arm64/kvm/hyp/exception.c
@@ -60,31 +60,12 @@ static void __vcpu_write_spsr_und(struct kvm_vcpu *vcpu, u64 val)
 		vcpu->arch.ctxt.spsr_und = val;
 }
 
-/*
- * This performs the exception entry at a given EL (@target_mode), stashing PC
- * and PSTATE into ELR and SPSR respectively, and compute the new PC/PSTATE.
- * The EL passed to this function *must* be a non-secure, privileged mode with
- * bit 0 being set (PSTATE.SP == 1).
- *
- * When an exception is taken, most PSTATE fields are left unchanged in the
- * handler. However, some are explicitly overridden (e.g. M[4:0]). Luckily all
- * of the inherited bits have the same position in the AArch64/AArch32 SPSR_ELx
- * layouts, so we don't need to shuffle these for exceptions from AArch32 EL0.
- *
- * For the SPSR_ELx layout for AArch64, see ARM DDI 0487E.a page C5-429.
- * For the SPSR_ELx layout for AArch32, see ARM DDI 0487E.a page C5-426.
- *
- * Here we manipulate the fields in order of the AArch64 SPSR_ELx layout, from
- * MSB to LSB.
- */
-static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode,
-			      enum exception_type type)
+unsigned long get_except64_offset(unsigned long psr, unsigned long target_mode,
+				  enum exception_type type)
 {
-	unsigned long sctlr, vbar, old, new, mode;
+	u64 mode = psr & (PSR_MODE_MASK | PSR_MODE32_BIT);
 	u64 exc_offset;
 
-	mode = *vcpu_cpsr(vcpu) & (PSR_MODE_MASK | PSR_MODE32_BIT);
-
 	if      (mode == target_mode)
 		exc_offset = CURRENT_EL_SP_ELx_VECTOR;
 	else if ((mode | PSR_MODE_THREAD_BIT) == target_mode)
@@ -94,28 +75,32 @@ static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode,
 	else
 		exc_offset = LOWER_EL_AArch32_VECTOR;
 
-	switch (target_mode) {
-	case PSR_MODE_EL1h:
-		vbar = __vcpu_read_sys_reg(vcpu, VBAR_EL1);
-		sctlr = __vcpu_read_sys_reg(vcpu, SCTLR_EL1);
-		__vcpu_write_sys_reg(vcpu, *vcpu_pc(vcpu), ELR_EL1);
-		break;
-	default:
-		/* Don't do that */
-		BUG();
-	}
-
-	*vcpu_pc(vcpu) = vbar + exc_offset + type;
+	return exc_offset + type;
+}
 
-	old = *vcpu_cpsr(vcpu);
-	new = 0;
+/*
+ * When an exception is taken, most PSTATE fields are left unchanged in the
+ * handler. However, some are explicitly overridden (e.g. M[4:0]). Luckily all
+ * of the inherited bits have the same position in the AArch64/AArch32 SPSR_ELx
+ * layouts, so we don't need to shuffle these for exceptions from AArch32 EL0.
+ *
+ * For the SPSR_ELx layout for AArch64, see ARM DDI 0487E.a page C5-429.
+ * For the SPSR_ELx layout for AArch32, see ARM DDI 0487E.a page C5-426.
+ *
+ * Here we manipulate the fields in order of the AArch64 SPSR_ELx layout, from
+ * MSB to LSB.
+ */
+unsigned long get_except64_cpsr(unsigned long old, bool has_mte,
+				unsigned long sctlr, unsigned long target_mode)
+{
+	u64 new = 0;
 
 	new |= (old & PSR_N_BIT);
 	new |= (old & PSR_Z_BIT);
 	new |= (old & PSR_C_BIT);
 	new |= (old & PSR_V_BIT);
 
-	if (kvm_has_mte(vcpu->kvm))
+	if (has_mte)
 		new |= PSR_TCO_BIT;
 
 	new |= (old & PSR_DIT_BIT);
@@ -151,6 +136,36 @@ static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode,
 
 	new |= target_mode;
 
+	return new;
+}
+
+/*
+ * This performs the exception entry at a given EL (@target_mode), stashing PC
+ * and PSTATE into ELR and SPSR respectively, and compute the new PC/PSTATE.
+ * The EL passed to this function *must* be a non-secure, privileged mode with
+ * bit 0 being set (PSTATE.SP == 1).
+ */
+static void enter_exception64(struct kvm_vcpu *vcpu, unsigned long target_mode,
+			      enum exception_type type)
+{
+	u64 offset = get_except64_offset(*vcpu_cpsr(vcpu), target_mode, type);
+	unsigned long sctlr, vbar, old, new;
+
+	switch (target_mode) {
+	case PSR_MODE_EL1h:
+		vbar = __vcpu_read_sys_reg(vcpu, VBAR_EL1);
+		sctlr = __vcpu_read_sys_reg(vcpu, SCTLR_EL1);
+		__vcpu_write_sys_reg(vcpu, *vcpu_pc(vcpu), ELR_EL1);
+		break;
+	default:
+		/* Don't do that */
+		BUG();
+	}
+
+	*vcpu_pc(vcpu) = vbar + offset;
+
+	old = *vcpu_cpsr(vcpu);
+	new = get_except64_cpsr(old, kvm_has_mte(vcpu->kvm), sctlr, target_mode);
 	*vcpu_cpsr(vcpu) = new;
 	__vcpu_write_spsr(vcpu, old);
 }
-- 
GitLab


From 982febefcdaa1325029faecdb49d2b46e78a9d32 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 22 Mar 2022 14:35:33 +0000
Subject: [PATCH 4635/4878] ANDROID: KVM: arm64: pkvm: Inject SIGSEGV on
 illegal accesses

The pKVM hypervisor will currently panic if the host tries to access
memory that it doesn't own (e.g. protected guest memory). Sadly, as
guest memory can still be mapped into the VMM's address space, userspace
can trivially crash the kernel/hypervisor by poking into guest memory.

To prevent this, inject the abort back in the host with S1PTW set in the
ESR, hence allowing the host to differentiate this abort from normal
userspace faults and inject a SIGSEGV cleanly.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 215520143
Change-Id: I9636e71e2fe3eb49d2d7cddaab7774cd672cfcae
---
 arch/arm64/kvm/hyp/nvhe/mem_protect.c | 50 ++++++++++++++++++++++++++-
 arch/arm64/mm/fault.c                 | 22 ++++++++++++
 2 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index bff50d7c63b52..76703b2b6f3c5 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -620,6 +620,50 @@ static bool is_dabt(u64 esr)
 	return ESR_ELx_EC(esr) == ESR_ELx_EC_DABT_LOW;
 }
 
+static void host_inject_abort(struct kvm_cpu_context *host_ctxt)
+{
+	u64 spsr = read_sysreg_el2(SYS_SPSR);
+	u64 esr = read_sysreg_el2(SYS_ESR);
+	u64 ventry, ec;
+
+	/* Repaint the ESR to report a same-level fault if taken from EL1 */
+	if ((spsr & PSR_MODE_MASK) != PSR_MODE_EL0t) {
+		ec = ESR_ELx_EC(esr);
+		if (ec == ESR_ELx_EC_DABT_LOW)
+			ec = ESR_ELx_EC_DABT_CUR;
+		else if (ec == ESR_ELx_EC_IABT_LOW)
+			ec = ESR_ELx_EC_IABT_CUR;
+		else
+			WARN_ON(1);
+		esr &= ~ESR_ELx_EC_MASK;
+		esr |= ec << ESR_ELx_EC_SHIFT;
+	}
+
+	/*
+	 * Since S1PTW should only ever be set for stage-2 faults, we're pretty
+	 * much guaranteed that it won't be set in ESR_EL1 by the hardware. So,
+	 * let's use that bit to allow the host abort handler to differentiate
+	 * this abort from normal userspace faults.
+	 *
+	 * Note: although S1PTW is RES0 at EL1, it is guaranteed by the
+	 * architecture to be backed by flops, so it should be safe to use.
+	 */
+	esr |= ESR_ELx_S1PTW;
+
+	write_sysreg_el1(esr, SYS_ESR);
+	write_sysreg_el1(spsr, SYS_SPSR);
+	write_sysreg_el1(read_sysreg_el2(SYS_ELR), SYS_ELR);
+	write_sysreg_el1(read_sysreg_el2(SYS_FAR), SYS_FAR);
+
+	ventry = read_sysreg_el1(SYS_VBAR);
+	ventry += get_except64_offset(spsr, PSR_MODE_EL1h, except_type_sync);
+	write_sysreg_el2(ventry, SYS_ELR);
+
+	spsr = get_except64_cpsr(spsr, system_supports_mte(),
+				 read_sysreg_el1(SYS_SCTLR), PSR_MODE_EL1h);
+	write_sysreg_el2(spsr, SYS_SPSR);
+}
+
 void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 {
 	struct kvm_vcpu_fault_info fault;
@@ -644,7 +688,11 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt)
 		ret = host_stage2_idmap(addr);
 
 	host_unlock_component();
-	BUG_ON(ret && ret != -EAGAIN);
+
+	if (ret == -EPERM)
+		host_inject_abort(host_ctxt);
+	else
+		BUG_ON(ret && ret != -EAGAIN);
 }
 
 /* This corresponds to locking order */
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 540ef3cd0a36a..9af359f683561 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -41,6 +41,7 @@
 #include <asm/system_misc.h>
 #include <asm/tlbflush.h>
 #include <asm/traps.h>
+#include <asm/virt.h>
 
 #include <trace/hooks/fault.h>
 
@@ -253,6 +254,15 @@ static inline bool is_el1_permission_fault(unsigned long addr, unsigned int esr,
 	return false;
 }
 
+static bool is_pkvm_stage2_abort(unsigned int esr)
+{
+	/*
+	 * S1PTW should only ever be set in ESR_EL1 if the pkvm hypervisor
+	 * injected a stage-2 abort -- see host_inject_abort().
+	 */
+	return is_pkvm_initialized() && (esr & ESR_ELx_S1PTW);
+}
+
 static bool __kprobes is_spurious_el1_translation_fault(unsigned long addr,
 							unsigned int esr,
 							struct pt_regs *regs)
@@ -264,6 +274,9 @@ static bool __kprobes is_spurious_el1_translation_fault(unsigned long addr,
 	    (esr & ESR_ELx_FSC_TYPE) != ESR_ELx_FSC_FAULT)
 		return false;
 
+	if (is_pkvm_stage2_abort(esr))
+		return false;
+
 	local_irq_save(flags);
 	asm volatile("at s1e1r, %0" :: "r" (addr));
 	isb();
@@ -379,6 +392,8 @@ static void __do_kernel_fault(unsigned long addr, unsigned int esr,
 			msg = "read from unreadable memory";
 	} else if (addr < PAGE_SIZE) {
 		msg = "NULL pointer dereference";
+	} else if (is_pkvm_stage2_abort(esr)) {
+		msg = "access to hypervisor-protected memory";
 	} else {
 		if (kfence_handle_page_fault(addr, esr & ESR_ELx_WNR, regs))
 			return;
@@ -557,6 +572,13 @@ static int __kprobes do_page_fault(unsigned long far, unsigned int esr,
 					 addr, esr, regs);
 	}
 
+	if (is_pkvm_stage2_abort(esr)) {
+		if (!user_mode(regs))
+			goto no_context;
+		arm64_force_sig_fault(SIGSEGV, SEGV_ACCERR, far, "stage-2 fault");
+		return 0;
+	}
+
 	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
 
 	/*
-- 
GitLab


From ec7c9ea9d496133caf94e1a95ac05c6f383ac20e Mon Sep 17 00:00:00 2001
From: Ray Chi <raychi@google.com>
Date: Mon, 28 Mar 2022 15:09:16 +0800
Subject: [PATCH 4636/4878] ANDROID: Update the ABI representation

Leaf changes summary: 19 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 19 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

19 Added functions:

  [A] 'function void gether_cleanup(eth_dev*)'
  [A] 'function net_device* gether_connect(gether*)'
  [A] 'function void gether_disconnect(gether*)'
  [A] 'function int gether_get_dev_addr(net_device*, char*, int)'
  [A] 'function int gether_get_host_addr(net_device*, char*, int)'
  [A] 'function void gether_get_host_addr_u8(net_device*, u8*)'
  [A] 'function int gether_get_ifname(net_device*, char*, int)'
  [A] 'function unsigned int gether_get_qmult(net_device*)'
  [A] 'function int gether_register_netdev(net_device*)'
  [A] 'function int gether_set_dev_addr(net_device*, const char*)'
  [A] 'function void gether_set_gadget(net_device*, usb_gadget*)'
  [A] 'function int gether_set_host_addr(net_device*, const char*)'
  [A] 'function int gether_set_ifname(net_device*, const char*, int)'
  [A] 'function void gether_set_qmult(net_device*, unsigned int)'
  [A] 'function net_device* gether_setup_name_default(const char*)'
  [A] 'function int usb_assign_descriptors(usb_function*, usb_descriptor_header**, usb_descriptor_header**, usb_descriptor_header**, usb_descriptor_header**)'
  [A] 'function void usb_free_all_descriptors(usb_function*)'
  [A] 'function usb_string* usb_gstrings_attach(usb_composite_dev*, usb_gadget_strings**, unsigned int)'
  [A] 'function config_group* usb_os_desc_prepare_interf_dir(config_group*, int, usb_os_desc**, char**, module*)'

Bug: 226074645
Change-Id: Iddfd251ee91514fac4153e14737825f40d855634
Signed-off-by: Ray Chi <raychi@google.com>
---
 android/abi_gki_aarch64.xml     | 613 ++++++++++++++++++++++++--------
 android/abi_gki_aarch64_generic |  23 ++
 2 files changed, 497 insertions(+), 139 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 48e0b304fbfee..73578e45a94f1 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -1593,6 +1593,21 @@
       <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81def43a'/>
       <elf-symbol name='get_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58adb05c'/>
       <elf-symbol name='get_zeroed_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09b5d9a'/>
+      <elf-symbol name='gether_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8878cfa6'/>
+      <elf-symbol name='gether_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81814649'/>
+      <elf-symbol name='gether_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7876db41'/>
+      <elf-symbol name='gether_get_dev_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa37ac07b'/>
+      <elf-symbol name='gether_get_host_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59327a6b'/>
+      <elf-symbol name='gether_get_host_addr_u8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171f5c65'/>
+      <elf-symbol name='gether_get_ifname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a59a5a'/>
+      <elf-symbol name='gether_get_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93c7cc0'/>
+      <elf-symbol name='gether_register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82bfcd74'/>
+      <elf-symbol name='gether_set_dev_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb4a0bfd'/>
+      <elf-symbol name='gether_set_gadget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f18c703'/>
+      <elf-symbol name='gether_set_host_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fd5257e'/>
+      <elf-symbol name='gether_set_ifname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92d4bfc5'/>
+      <elf-symbol name='gether_set_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48400604'/>
+      <elf-symbol name='gether_setup_name_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76946226'/>
       <elf-symbol name='glob_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5009c71d'/>
       <elf-symbol name='gnss_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc231a1c0'/>
       <elf-symbol name='gnss_deregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19e2eae7'/>
@@ -3333,6 +3348,7 @@
       <elf-symbol name='usb_amd_quirk_pll_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc825d6c'/>
       <elf-symbol name='usb_amd_quirk_pll_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10ecc52c'/>
       <elf-symbol name='usb_anchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x684877e8'/>
+      <elf-symbol name='usb_assign_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aa5d55d'/>
       <elf-symbol name='usb_autopm_get_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14baaf6f'/>
       <elf-symbol name='usb_autopm_put_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7a50b11'/>
       <elf-symbol name='usb_bulk_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc35060b'/>
@@ -3357,6 +3373,7 @@
       <elf-symbol name='usb_ep_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d6766db'/>
       <elf-symbol name='usb_ep_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4616fc7'/>
       <elf-symbol name='usb_ep_set_halt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8310b89e'/>
+      <elf-symbol name='usb_free_all_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1188aee'/>
       <elf-symbol name='usb_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x447fe056'/>
       <elf-symbol name='usb_free_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb98ec8e2'/>
       <elf-symbol name='usb_function_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91174c19'/>
@@ -3368,6 +3385,7 @@
       <elf-symbol name='usb_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1939c931'/>
       <elf-symbol name='usb_get_from_anchor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9479807'/>
       <elf-symbol name='usb_get_gadget_udc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b88f41'/>
+      <elf-symbol name='usb_gstrings_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45cf6b90'/>
       <elf-symbol name='usb_hc_died' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x788dbd87'/>
       <elf-symbol name='usb_hcd_check_unlink_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4566980c'/>
       <elf-symbol name='usb_hcd_giveback_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea9d0fcb'/>
@@ -3385,6 +3403,7 @@
       <elf-symbol name='usb_interface_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec3385da'/>
       <elf-symbol name='usb_kill_anchored_urbs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x962c8ae1'/>
       <elf-symbol name='usb_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8541c7c3'/>
+      <elf-symbol name='usb_os_desc_prepare_interf_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6460ddc'/>
       <elf-symbol name='usb_otg_state_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f0d9053'/>
       <elf-symbol name='usb_put_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8939becb'/>
       <elf-symbol name='usb_put_function_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd71f1853'/>
@@ -4289,7 +4308,7 @@
           <var-decl name='ops' type-id='76e6e22f' visibility='default' filepath='include/sound/soc-topology.h' line='68' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='' type-id='ac5ab66f' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
+          <var-decl name='' type-id='ac5ab670' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='448'>
           <var-decl name='private' type-id='eaa32e2f' visibility='default' filepath='include/sound/soc-topology.h' line='73' column='1'/>
@@ -5035,6 +5054,7 @@
       <pointer-type-def type-id='e45577b8' size-in-bits='64' id='048b3ad6'/>
       <pointer-type-def type-id='7b596412' size-in-bits='64' id='0499c3f4'/>
       <pointer-type-def type-id='89f1cbf8' size-in-bits='64' id='04a219de'/>
+      <pointer-type-def type-id='37eec936' size-in-bits='64' id='04b6a8dc'/>
       <pointer-type-def type-id='f154f192' size-in-bits='64' id='04b7616c'/>
       <enum-decl name='dma_ctrl_flags' filepath='include/linux/dmaengine.h' line='195' column='1' id='04baee86'>
         <underlying-type type-id='9cac1fee'/>
@@ -8041,15 +8061,15 @@
       <array-type-def dimensions='1' type-id='0bb26f49' size-in-bits='96' id='0e1e8cdf'>
         <subrange length='6' type-id='7ff19f0f' id='52fa524b'/>
       </array-type-def>
-      <class-decl name='core_state' size-in-bits='448' is-struct='yes' visibility='default' filepath='include/linux/mm_types.h' line='408' column='1' id='0e1f7cac'>
+      <class-decl name='core_state' size-in-bits='448' is-struct='yes' visibility='default' filepath='include/linux/mm_types.h' line='411' column='1' id='0e1f7cac'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='nr_threads' type-id='49178f86' visibility='default' filepath='include/linux/mm_types.h' line='409' column='1'/>
+          <var-decl name='nr_threads' type-id='49178f86' visibility='default' filepath='include/linux/mm_types.h' line='412' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='dumper' type-id='f3d147c3' visibility='default' filepath='include/linux/mm_types.h' line='410' column='1'/>
+          <var-decl name='dumper' type-id='f3d147c3' visibility='default' filepath='include/linux/mm_types.h' line='413' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='startup' type-id='f9fef04f' visibility='default' filepath='include/linux/mm_types.h' line='411' column='1'/>
+          <var-decl name='startup' type-id='f9fef04f' visibility='default' filepath='include/linux/mm_types.h' line='414' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='25bc1b8d' size-in-bits='64' id='0e1f87e5'/>
@@ -9212,6 +9232,26 @@
         <subrange length='32' type-id='7ff19f0f' id='ae5bde82'/>
       </array-type-def>
       <pointer-type-def type-id='ed51618b' size-in-bits='64' id='11b101bb'/>
+      <class-decl name='ip_sf_list' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/igmp.h' line='61' column='1' id='11b31209'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='sf_next' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='62' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='sf_count' type-id='f05e8e77' visibility='default' filepath='include/linux/igmp.h' line='63' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='sf_inaddr' type-id='78a133c2' visibility='default' filepath='include/linux/igmp.h' line='64' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='224'>
+          <var-decl name='sf_gsresp' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='65' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='232'>
+          <var-decl name='sf_oldin' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='66' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='240'>
+          <var-decl name='sf_crcount' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='67' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='19b26952' size-in-bits='64' id='11bff950'/>
       <function-type size-in-bits='64' id='11c513ae'>
         <parameter type-id='b4de78ea'/>
@@ -9595,6 +9635,7 @@
           <var-decl name='reserved' type-id='83a5454e' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2417' column='1'/>
         </data-member>
       </class-decl>
+      <pointer-type-def type-id='6167e1dd' size-in-bits='64' id='125250b1'/>
       <pointer-type-def type-id='733b57c3' size-in-bits='64' id='1261411f'/>
       <class-decl name='pm_subsys_data' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/pm.h' line='539' column='1' id='1269b801'>
         <data-member access='public' layout-offset-in-bits='0'>
@@ -13166,7 +13207,7 @@
           <var-decl name='seq_ctrl' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1097' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='u' type-id='ac5ab665' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
+          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='crypto_shash_spawn' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/crypto/internal/hash.h' line='58' column='1' id='1aafc68e'>
@@ -15592,7 +15633,7 @@
           <var-decl name='tx_time_est' type-id='19c2251e' visibility='default' filepath='include/net/mac80211.h' line='1056' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
+          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='345f1a5f' size-in-bits='64' id='2227a3ab'/>
@@ -17596,7 +17637,7 @@
       <pointer-type-def type-id='6e44244d' size-in-bits='64' id='27b80621'/>
       <class-decl name='ieee80211_key_seq' size-in-bits='160' is-struct='yes' visibility='default' filepath='include/net/mac80211.h' line='1891' column='1' id='27ba2d9f'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
+          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='f111d4f3' size-in-bits='64' id='27bb8677'/>
@@ -17721,6 +17762,7 @@
           <var-decl name='prios' type-id='6ed968f3' visibility='default' filepath='include/media/v4l2-dev.h' line='113' column='1'/>
         </data-member>
       </class-decl>
+      <pointer-type-def type-id='c41f8fa1' size-in-bits='64' id='281e6c4d'/>
       <pointer-type-def type-id='ce8c45a3' size-in-bits='64' id='28271da3'/>
       <union-decl name='extcon_property_value' size-in-bits='32' visibility='default' filepath='include/linux/extcon.h' line='162' column='1' id='282b2805'>
         <data-member access='public'>
@@ -18911,7 +18953,7 @@
         <parameter type-id='855e3679'/>
         <return type-id='95e97e5e'/>
       </function-type>
-      <typedef-decl name='va_list' type-id='7f896fb4' filepath='prebuilts/clang/host/linux-x86/clang-r445002/lib64/clang/14.0.2/include/stdarg.h' line='14' column='1' id='2aee9912'/>
+      <typedef-decl name='va_list' type-id='7f896fb4' filepath='prebuilts/clang/host/linux-x86/clang-r450784/lib64/clang/14.0.3/include/stdarg.h' line='14' column='1' id='2aee9912'/>
       <class-decl name='transport_container' size-in-bits='832' is-struct='yes' visibility='default' filepath='include/linux/transport_class.h' line='56' column='1' id='2af4292a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ac' type-id='52bea74f' visibility='default' filepath='include/linux/transport_class.h' line='57' column='1'/>
@@ -20753,12 +20795,12 @@
       <array-type-def dimensions='1' type-id='26a90f95' size-in-bits='4096' id='31147867'>
         <subrange length='64' type-id='7ff19f0f' id='b10be967'/>
       </array-type-def>
-      <class-decl name='mm_struct' size-in-bits='7680' is-struct='yes' visibility='default' filepath='include/linux/mm_types.h' line='416' column='1' id='311626f1'>
+      <class-decl name='mm_struct' size-in-bits='7680' is-struct='yes' visibility='default' filepath='include/linux/mm_types.h' line='419' column='1' id='311626f1'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='e7f43fce' visibility='default' filepath='include/linux/mm_types.h' line='417' column='1'/>
+          <var-decl name='' type-id='e7f43fce' visibility='default' filepath='include/linux/mm_types.h' line='420' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='7680'>
-          <var-decl name='cpu_bitmap' type-id='c99b5ecd' visibility='default' filepath='include/linux/mm_types.h' line='621' column='1'/>
+          <var-decl name='cpu_bitmap' type-id='c99b5ecd' visibility='default' filepath='include/linux/mm_types.h' line='624' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='93df1bf0' size-in-bits='64' id='31163f5a'/>
@@ -22608,7 +22650,7 @@
           <var-decl name='size' type-id='2f162548' visibility='default' filepath='include/uapi/sound/asoc.h' line='235' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='' type-id='ac5ab671' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1'/>
+          <var-decl name='' type-id='ac5ab672' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='usb_config_descriptor' size-in-bits='72' is-struct='yes' visibility='default' filepath='include/uapi/linux/usb/ch9.h' line='349' column='1' id='372ebfa4'>
@@ -22762,6 +22804,53 @@
         <subrange length='16' type-id='7ff19f0f' id='848d0938'/>
       </array-type-def>
       <pointer-type-def type-id='7fa2fd91' size-in-bits='64' id='37ec0ebd'/>
+      <class-decl name='gether' size-in-bits='2368' is-struct='yes' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='52' column='1' id='37eec936'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='func' type-id='d6a54726' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='53' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1728'>
+          <var-decl name='ioport' type-id='a15a118e' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='56' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1792'>
+          <var-decl name='in_ep' type-id='63a08bf7' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='59' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1856'>
+          <var-decl name='out_ep' type-id='63a08bf7' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='60' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1920'>
+          <var-decl name='is_zlp_ok' type-id='b50a4934' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='62' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1936'>
+          <var-decl name='cdc_filter' type-id='1dc6a898' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='64' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1952'>
+          <var-decl name='header_len' type-id='19c2251e' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='67' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1984'>
+          <var-decl name='is_fixed' type-id='b50a4934' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='69' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2016'>
+          <var-decl name='fixed_out_len' type-id='19c2251e' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='70' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2048'>
+          <var-decl name='fixed_in_len' type-id='19c2251e' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='71' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2080'>
+          <var-decl name='supports_multi_frame' type-id='b50a4934' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='72' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2112'>
+          <var-decl name='wrap' type-id='ade1e67f' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='73' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2176'>
+          <var-decl name='unwrap' type-id='125250b1' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='75' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2240'>
+          <var-decl name='open' type-id='281e6c4d' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='80' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2304'>
+          <var-decl name='close' type-id='281e6c4d' visibility='default' filepath='drivers/usb/gadget/function/u_ether.h' line='81' column='1'/>
+        </data-member>
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@@ -69044,7 +69154,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1' id='ac5ab662'>
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@@ -69064,7 +69174,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab663'>
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@@ -69084,7 +69194,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab664'>
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@@ -69092,7 +69202,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab665'>
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@@ -69100,7 +69210,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='208' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1098' column='1' id='ac5ab666'>
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@@ -69141,7 +69251,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='200' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1159' column='1' id='ac5ab667'>
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@@ -69194,7 +69304,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/sound/control.h' line='71' column='1' id='ac5ab668'>
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@@ -69202,7 +69312,7 @@
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@@ -69216,24 +69326,24 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1049' column='1' id='ac5ab66a'>
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-          <var-decl name='integer' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
+          <var-decl name='integer' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
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-          <var-decl name='integer64' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
+          <var-decl name='integer64' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
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-          <var-decl name='enumerated' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
+          <var-decl name='enumerated' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
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-          <var-decl name='bytes' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
+          <var-decl name='bytes' type-id='ac5ab66e' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1050' column='1' id='ac5ab66b'>
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@@ -69241,7 +69351,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1054' column='1' id='ac5ab66c'>
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@@ -69249,7 +69359,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66d'>
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@@ -69257,7 +69367,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66e'>
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@@ -69265,7 +69375,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66e'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66f'>
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@@ -69273,7 +69383,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab670'>
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@@ -69281,7 +69391,7 @@
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab670'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab671'>
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@@ -69292,7 +69402,7 @@
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab671'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab672'>
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@@ -69300,7 +69410,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab673'>
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@@ -69677,6 +69787,7 @@
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       <pointer-type-def type-id='476ef610' size-in-bits='64' id='addd4a1a'/>
+      <pointer-type-def type-id='a15f21bb' size-in-bits='64' id='ade1e67f'/>
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@@ -73103,6 +73214,7 @@
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       <pointer-type-def type-id='68a72cd7' size-in-bits='64' id='b6316a7f'/>
+      <pointer-type-def type-id='5260af22' size-in-bits='64' id='b6338998'/>
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@@ -73588,7 +73700,7 @@
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+          <var-decl name='' type-id='ac5ab65d' visibility='default' filepath='include/net/nexthop.h' line='101' column='1'/>
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@@ -78844,7 +78956,65 @@
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+      <class-decl name='ip_mc_list' size-in-bits='1280' is-struct='yes' visibility='default' filepath='include/linux/igmp.h' line='70' column='1' id='c2a59aaa'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='interface' type-id='fc6f14a9' visibility='default' filepath='include/linux/igmp.h' line='71' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='multiaddr' type-id='78a133c2' visibility='default' filepath='include/linux/igmp.h' line='72' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='96'>
+          <var-decl name='sfmode' type-id='f0981eeb' visibility='default' filepath='include/linux/igmp.h' line='73' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='sources' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='74' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='192'>
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+        <data-member access='public' layout-offset-in-bits='256'>
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+          <var-decl name='' type-id='ac5ab65a' visibility='default' filepath='include/linux/igmp.h' line='77' column='1'/>
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+          <var-decl name='next_hash' type-id='26479c18' visibility='default' filepath='include/linux/igmp.h' line='81' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='512'>
+          <var-decl name='timer' type-id='abe41e67' visibility='default' filepath='include/linux/igmp.h' line='82' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='960'>
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+        </data-member>
+        <data-member access='public' layout-offset-in-bits='992'>
+          <var-decl name='refcnt' type-id='64615833' visibility='default' filepath='include/linux/igmp.h' line='84' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1024'>
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+        <data-member access='public' layout-offset-in-bits='1064'>
+          <var-decl name='reporter' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='87' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='1072'>
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+        <data-member access='public' layout-offset-in-bits='1080'>
+          <var-decl name='loaded' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='89' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='1088'>
+          <var-decl name='gsquery' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='90' column='1'/>
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+        <data-member access='public' layout-offset-in-bits='1096'>
+          <var-decl name='crcount' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='91' column='1'/>
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@@ -79430,6 +79600,10 @@
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-          <var-decl name='uprobes_state' type-id='6308a819' visibility='default' filepath='include/linux/mm_types.h' line='604' column='1'/>
+          <var-decl name='uprobes_state' type-id='6308a819' visibility='default' filepath='include/linux/mm_types.h' line='607' column='1'/>
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-          <var-decl name='async_put_work' type-id='ef9025d0' visibility='default' filepath='include/linux/mm_types.h' line='608' column='1'/>
+          <var-decl name='async_put_work' type-id='ef9025d0' visibility='default' filepath='include/linux/mm_types.h' line='611' column='1'/>
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-          <var-decl name='pasid' type-id='19c2251e' visibility='default' filepath='include/linux/mm_types.h' line='611' column='1'/>
+          <var-decl name='pasid' type-id='19c2251e' visibility='default' filepath='include/linux/mm_types.h' line='614' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='7616'>
-          <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/mm_types.h' line='614' column='1'/>
+          <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/mm_types.h' line='617' column='1'/>
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@@ -95654,7 +95828,7 @@
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-          <var-decl name='u' type-id='ac5ab65a' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='65' column='1'/>
+          <var-decl name='u' type-id='ac5ab65b' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='65' column='1'/>
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           <var-decl name='protonum' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='68' column='1'/>
@@ -95758,7 +95932,7 @@
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-          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
+          <var-decl name='' type-id='ac5ab664' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
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         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='vif' type-id='3a1577c5' visibility='default' filepath='include/net/mac80211.h' line='1077' column='1'/>
@@ -95997,7 +96171,7 @@
           <var-decl name='category' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1158' column='1'/>
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         <data-member access='public' layout-offset-in-bits='8'>
-          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
+          <var-decl name='u' type-id='ac5ab667' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
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       <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403c'>
@@ -96608,7 +96782,7 @@
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       <pointer-type-def type-id='98336dd9' size-in-bits='64' id='e91f335d'/>
-      <typedef-decl name='vm_fault_t' type-id='f0981eeb' filepath='include/linux/mm_types.h' line='738' column='1' id='e9265215'/>
+      <typedef-decl name='vm_fault_t' type-id='f0981eeb' filepath='include/linux/mm_types.h' line='741' column='1' id='e9265215'/>
       <class-decl name='fib_nh_exception' size-in-bits='640' is-struct='yes' visibility='default' filepath='include/net/ip_fib.h' line='58' column='1' id='e92f1a2f'>
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           <var-decl name='fnhe_next' type-id='aa804387' visibility='default' filepath='include/net/ip_fib.h' line='59' column='1'/>
@@ -99429,7 +99603,7 @@
           <var-decl name='type' type-id='703e082c' visibility='default' filepath='include/net/mac80211.h' line='463' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='u' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
+          <var-decl name='u' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='b5d64367' size-in-bits='64' id='f08a800b'/>
@@ -100691,12 +100865,12 @@
         <parameter type-id='67681d50'/>
         <return type-id='95e97e5e'/>
       </function-type>
-      <class-decl name='core_thread' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/mm_types.h' line='403' column='1' id='f3d147c3'>
+      <class-decl name='core_thread' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/mm_types.h' line='406' column='1' id='f3d147c3'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='task' type-id='f23e2572' visibility='default' filepath='include/linux/mm_types.h' line='404' column='1'/>
+          <var-decl name='task' type-id='f23e2572' visibility='default' filepath='include/linux/mm_types.h' line='407' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='next' type-id='740b5503' visibility='default' filepath='include/linux/mm_types.h' line='405' column='1'/>
+          <var-decl name='next' type-id='740b5503' visibility='default' filepath='include/linux/mm_types.h' line='408' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='46af63cb' size-in-bits='64' id='f3d2e9a7'/>
@@ -103447,6 +103621,68 @@
         <parameter type-id='e90f4666'/>
         <return type-id='95e97e5e'/>
       </function-type>
+      <class-decl name='eth_dev' size-in-bits='1600' is-struct='yes' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='53' column='1' id='fb75bb68'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='56' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='port_usb' type-id='04b6a8dc' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='57' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='net' type-id='68a2d05b' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='59' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='gadget' type-id='49a58c0c' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='60' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='req_lock' type-id='fb4018a0' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='62' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='320'>
+          <var-decl name='tx_reqs' type-id='72f469ec' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='63' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='448'>
+          <var-decl name='rx_reqs' type-id='72f469ec' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='63' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='576'>
+          <var-decl name='tx_qlen' type-id='49178f86' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='64' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='640'>
+          <var-decl name='rx_frames' type-id='e61c85d0' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='66' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='832'>
+          <var-decl name='qmult' type-id='f0981eeb' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='68' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='864'>
+          <var-decl name='header_len' type-id='f0981eeb' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='70' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='896'>
+          <var-decl name='wrap' type-id='ade1e67f' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='71' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='960'>
+          <var-decl name='unwrap' type-id='125250b1' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='72' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1024'>
+          <var-decl name='work' type-id='ef9025d0' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='76' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1408'>
+          <var-decl name='todo' type-id='7359adad' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='78' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1472'>
+          <var-decl name='zlp' type-id='b50a4934' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='81' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1480'>
+          <var-decl name='no_skb_reserve' type-id='b50a4934' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='82' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1488'>
+          <var-decl name='ifname_set' type-id='b50a4934' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='83' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1496'>
+          <var-decl name='host_mac' type-id='cf1a4160' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='84' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1544'>
+          <var-decl name='dev_mac' type-id='cf1a4160' visibility='default' filepath='drivers/usb/gadget/function/u_ether.c' line='85' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='0c01943f' size-in-bits='64' id='fb7c1d0f'/>
       <typedef-decl name='cc_t' type-id='002ac4a6' filepath='include/uapi/asm-generic/termbits.h' line='7' column='1' id='fb7c6451'/>
       <pointer-type-def type-id='78b26ac9' size-in-bits='64' id='fb7d87a1'/>
@@ -114018,6 +114254,79 @@
         <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5204' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
+      <function-decl name='gether_cleanup' mangled-name='gether_cleanup' filepath='drivers/usb/gadget/function/u_ether.c' line='1049' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_cleanup'>
+        <parameter type-id='a15a118e' name='dev' filepath='drivers/usb/gadget/function/u_ether.c' line='1049' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gether_connect' mangled-name='gether_connect' filepath='drivers/usb/gadget/function/u_ether.c' line='1076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_connect'>
+        <parameter type-id='04b6a8dc' name='link' filepath='drivers/usb/gadget/function/u_ether.c' line='1076' column='1'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
+      <function-decl name='gether_disconnect' mangled-name='gether_disconnect' filepath='drivers/usb/gadget/function/u_ether.c' line='1154' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_disconnect'>
+        <parameter type-id='04b6a8dc' name='link' filepath='drivers/usb/gadget/function/u_ether.c' line='1154' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gether_get_dev_addr' mangled-name='gether_get_dev_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='916' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_get_dev_addr'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='916' column='1'/>
+        <parameter type-id='26a90f95' name='dev_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='916' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/usb/gadget/function/u_ether.c' line='916' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_get_host_addr' mangled-name='gether_get_host_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_get_host_addr'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='945' column='1'/>
+        <parameter type-id='26a90f95' name='host_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='945' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/usb/gadget/function/u_ether.c' line='945' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_get_host_addr_u8' mangled-name='gether_get_host_addr_u8' filepath='drivers/usb/gadget/function/u_ether.c' line='975' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_get_host_addr_u8'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='975' column='1'/>
+        <parameter type-id='8bff8096' name='host_mac' filepath='drivers/usb/gadget/function/u_ether.c' line='975' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gether_get_ifname' mangled-name='gether_get_ifname' filepath='drivers/usb/gadget/function/u_ether.c' line='1002' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_get_ifname'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='1002' column='1'/>
+        <parameter type-id='26a90f95' name='name' filepath='drivers/usb/gadget/function/u_ether.c' line='1002' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/usb/gadget/function/u_ether.c' line='1002' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_get_qmult' mangled-name='gether_get_qmult' filepath='drivers/usb/gadget/function/u_ether.c' line='993' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_get_qmult'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='993' column='1'/>
+        <return type-id='f0981eeb'/>
+      </function-decl>
+      <function-decl name='gether_register_netdev' mangled-name='gether_register_netdev' filepath='drivers/usb/gadget/function/u_ether.c' line='860' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_register_netdev'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='860' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_set_dev_addr' mangled-name='gether_set_dev_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='903' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_set_dev_addr'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='903' column='1'/>
+        <parameter type-id='80f4b756' name='dev_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='903' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_set_gadget' mangled-name='gether_set_gadget' filepath='drivers/usb/gadget/function/u_ether.c' line='893' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_set_gadget'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='893' column='1'/>
+        <parameter type-id='49a58c0c' name='g' filepath='drivers/usb/gadget/function/u_ether.c' line='893' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gether_set_host_addr' mangled-name='gether_set_host_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_set_host_addr'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='932' column='1'/>
+        <parameter type-id='80f4b756' name='host_addr' filepath='drivers/usb/gadget/function/u_ether.c' line='932' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_set_ifname' mangled-name='gether_set_ifname' filepath='drivers/usb/gadget/function/u_ether.c' line='1015' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_set_ifname'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='1015' column='1'/>
+        <parameter type-id='80f4b756' name='name' filepath='drivers/usb/gadget/function/u_ether.c' line='1015' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='drivers/usb/gadget/function/u_ether.c' line='1015' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='gether_set_qmult' mangled-name='gether_set_qmult' filepath='drivers/usb/gadget/function/u_ether.c' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_set_qmult'>
+        <parameter type-id='68a2d05b' name='net' filepath='drivers/usb/gadget/function/u_ether.c' line='984' column='1'/>
+        <parameter type-id='f0981eeb' name='qmult' filepath='drivers/usb/gadget/function/u_ether.c' line='984' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='gether_setup_name_default' mangled-name='gether_setup_name_default' filepath='drivers/usb/gadget/function/u_ether.c' line='819' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_setup_name_default'>
+        <parameter type-id='80f4b756' name='netname' filepath='drivers/usb/gadget/function/u_ether.c' line='819' column='1'/>
+        <return type-id='68a2d05b'/>
+      </function-decl>
       <var-decl name='gic_nonsecure_priorities' type-id='237c0d27' mangled-name='gic_nonsecure_priorities' visibility='default' filepath='drivers/irqchip/irq-gic-v3.c' line='92' column='1' elf-symbol-id='gic_nonsecure_priorities'/>
       <function-decl name='glob_match' mangled-name='glob_match' filepath='lib/glob.c' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='glob_match'>
         <parameter type-id='80f4b756' name='pat' filepath='lib/glob.c' line='40' column='1'/>
@@ -122957,6 +123266,14 @@
         <parameter type-id='bd300bf3' name='anchor' filepath='drivers/usb/core/urb.c' line='126' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
+      <function-decl name='usb_assign_descriptors' mangled-name='usb_assign_descriptors' filepath='drivers/usb/gadget/config.c' line='159' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_assign_descriptors'>
+        <parameter type-id='e5411c2c' name='f' filepath='drivers/usb/gadget/config.c' line='159' column='1'/>
+        <parameter type-id='f363a725' name='fs' filepath='drivers/usb/gadget/config.c' line='160' column='1'/>
+        <parameter type-id='f363a725' name='hs' filepath='drivers/usb/gadget/config.c' line='161' column='1'/>
+        <parameter type-id='f363a725' name='ss' filepath='drivers/usb/gadget/config.c' line='162' column='1'/>
+        <parameter type-id='f363a725' name='ssp' filepath='drivers/usb/gadget/config.c' line='163' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='usb_autopm_get_interface' mangled-name='usb_autopm_get_interface' filepath='drivers/usb/core/driver.c' line='1825' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_autopm_get_interface'>
         <parameter type-id='8bf48c31' name='intf' filepath='drivers/usb/core/driver.c' line='1825' column='1'/>
         <return type-id='95e97e5e'/>
@@ -123083,6 +123400,10 @@
         <parameter type-id='63a08bf7' name='ep' filepath='drivers/usb/gadget/udc/core.c' line='343' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='usb_free_all_descriptors' mangled-name='usb_free_all_descriptors' filepath='drivers/usb/gadget/config.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_all_descriptors'>
+        <parameter type-id='e5411c2c' name='f' filepath='drivers/usb/gadget/config.c' line='202' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
       <function-decl name='usb_free_coherent' mangled-name='usb_free_coherent' filepath='drivers/usb/core/usb.c' line='944' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_free_coherent'>
         <parameter type-id='25e60cb2' name='dev' filepath='drivers/usb/core/usb.c' line='944' column='1'/>
         <parameter type-id='b59d7dce' name='size' filepath='drivers/usb/core/usb.c' line='944' column='1'/>
@@ -123131,6 +123452,12 @@
       <function-decl name='usb_get_gadget_udc_name' mangled-name='usb_get_gadget_udc_name' filepath='drivers/usb/gadget/udc/core.c' line='1393' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_get_gadget_udc_name'>
         <return type-id='26a90f95'/>
       </function-decl>
+      <function-decl name='usb_gstrings_attach' mangled-name='usb_gstrings_attach' filepath='drivers/usb/gadget/composite.c' line='1388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_gstrings_attach'>
+        <parameter type-id='2a895c01' name='cdev' filepath='drivers/usb/gadget/composite.c' line='1388' column='1'/>
+        <parameter type-id='fa0eba8f' name='sp' filepath='drivers/usb/gadget/composite.c' line='1389' column='1'/>
+        <parameter type-id='f0981eeb' name='n_strings' filepath='drivers/usb/gadget/composite.c' line='1389' column='1'/>
+        <return type-id='3b7e997b'/>
+      </function-decl>
       <function-decl name='usb_hc_died' mangled-name='usb_hc_died' filepath='drivers/usb/core/hcd.c' line='2385' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_hc_died'>
         <parameter type-id='fc4f83c1' name='hcd' filepath='drivers/usb/core/hcd.c' line='2385' column='1'/>
         <return type-id='48b5725f'/>
@@ -123213,6 +123540,14 @@
         <parameter type-id='bc57058f' name='id' filepath='drivers/usb/core/driver.c' line='808' column='1'/>
         <return type-id='bc57058f'/>
       </function-decl>
+      <function-decl name='usb_os_desc_prepare_interf_dir' mangled-name='usb_os_desc_prepare_interf_dir' filepath='drivers/usb/gadget/configfs.c' line='1228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_os_desc_prepare_interf_dir'>
+        <parameter type-id='97aff453' name='parent' filepath='drivers/usb/gadget/configfs.c' line='1229' column='1'/>
+        <parameter type-id='95e97e5e' name='n_interf' filepath='drivers/usb/gadget/configfs.c' line='1230' column='1'/>
+        <parameter type-id='b6338998' name='desc' filepath='drivers/usb/gadget/configfs.c' line='1231' column='1'/>
+        <parameter type-id='9b23c9ad' name='names' filepath='drivers/usb/gadget/configfs.c' line='1232' column='1'/>
+        <parameter type-id='2730d015' name='owner' filepath='drivers/usb/gadget/configfs.c' line='1233' column='1'/>
+        <return type-id='97aff453'/>
+      </function-decl>
       <function-decl name='usb_otg_state_string' mangled-name='usb_otg_state_string' filepath='drivers/usb/common/common.c' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='usb_otg_state_string'>
         <parameter type-id='4c0c8157' name='state' filepath='drivers/usb/common/common.c' line='43' column='1'/>
         <return type-id='80f4b756'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index d23b147cbf1af..0363117ed73cb 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -388,6 +388,7 @@
   devfreq_update_interval
   dev_fwnode
   dev_get_by_name
+  dev_get_stats
   device_add
   device_add_disk
   device_add_groups
@@ -897,6 +898,21 @@
   get_device
   __get_free_pages
   get_governor_parent_kobj
+  gether_cleanup
+  gether_connect
+  gether_disconnect
+  gether_get_dev_addr
+  gether_get_host_addr
+  gether_get_host_addr_u8
+  gether_get_ifname
+  gether_get_qmult
+  gether_register_netdev
+  gether_set_dev_addr
+  gether_set_gadget
+  gether_set_host_addr
+  gether_set_ifname
+  gether_set_qmult
+  gether_setup_name_default
   get_pfnblock_flags_mask
   get_pid_task
   get_random_bytes
@@ -2399,20 +2415,27 @@
   up_write
   usb_add_function
   usb_add_hcd
+  usb_assign_descriptors
   usb_copy_descriptors
   __usb_create_hcd
   usb_disabled
   usb_enable_autosuspend
+  usb_ep_alloc_request
   usb_ep_autoconfig
   usb_ep_disable
   usb_ep_enable
+  usb_ep_free_request
+  usb_ep_queue
+  usb_free_all_descriptors
   usb_function_register
   usb_function_unregister
   usb_gadget_set_state
+  usb_gstrings_attach
   usb_hcd_is_primary_hcd
   usb_hcd_platform_shutdown
   usb_hub_find_child
   usb_interface_id
+  usb_os_desc_prepare_interf_dir
   usb_otg_state_string
   usb_put_function_instance
   usb_put_hcd
-- 
GitLab


From e3356ca0a6c24e1ccdde6e9f80875701218ab090 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Fri, 7 Jan 2022 18:31:06 +0800
Subject: [PATCH 4637/4878] ANDROID: sched: Add vendor hook for util-update
 related functions

Vendor may have the need to implement their own util tracking.

Bug: 201260585
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I973902e6ff82a85ecd029ac5a78692d629df1ebe
---
 drivers/android/vendor_hooks.c |  5 +++++
 include/trace/hooks/sched.h    | 20 ++++++++++++++++++++
 kernel/sched/fair.c            | 10 ++++++++++
 kernel/sched/pelt.c            | 11 ++++++-----
 4 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 744e73bc15fc8..0bd6030fbb622 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -388,3 +388,8 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh___get_user_pages_remote);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_get_user_pages);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_internal_get_user_pages_fast);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_pin_user_pages);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_attach_entity_load_avg);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_detach_entity_load_avg);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_load_avg);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_remove_entity_load_avg);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_blocked_fair);
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index a9884beaf2e8a..445484f1356c6 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -405,6 +405,26 @@ DECLARE_HOOK(android_vh_setscheduler_uclamp,
 	TP_PROTO(struct task_struct *tsk, int clamp_id, unsigned int value),
 	TP_ARGS(tsk, clamp_id, value));
 
+DECLARE_RESTRICTED_HOOK(android_rvh_attach_entity_load_avg,
+	TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
+	TP_ARGS(cfs_rq, se), 1);
+
+DECLARE_RESTRICTED_HOOK(android_rvh_detach_entity_load_avg,
+	TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
+	TP_ARGS(cfs_rq, se), 1);
+
+DECLARE_RESTRICTED_HOOK(android_rvh_update_load_avg,
+	TP_PROTO(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se),
+	TP_ARGS(now, cfs_rq, se), 1);
+
+DECLARE_RESTRICTED_HOOK(android_rvh_remove_entity_load_avg,
+	TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
+	TP_ARGS(cfs_rq, se), 1);
+
+DECLARE_RESTRICTED_HOOK(android_rvh_update_blocked_fair,
+	TP_PROTO(struct rq *rq),
+	TP_ARGS(rq), 1);
+
 /* macro versions of hooks are no longer required */
 
 #endif /* _TRACE_HOOK_SCHED_H */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4d478fe31f98b..ff561e3763f4b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3763,6 +3763,8 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
 			div_u64(se->avg.load_avg * se->avg.load_sum, se_weight(se));
 	}
 
+	trace_android_rvh_attach_entity_load_avg(cfs_rq, se);
+
 	enqueue_load_avg(cfs_rq, se);
 	cfs_rq->avg.util_avg += se->avg.util_avg;
 	cfs_rq->avg.util_sum += se->avg.util_sum;
@@ -3786,6 +3788,8 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
  */
 static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
+	trace_android_rvh_detach_entity_load_avg(cfs_rq, se);
+
 	dequeue_load_avg(cfs_rq, se);
 	sub_positive(&cfs_rq->avg.util_avg, se->avg.util_avg);
 	sub_positive(&cfs_rq->avg.util_sum, se->avg.util_sum);
@@ -3825,6 +3829,8 @@ static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
 	decayed  = update_cfs_rq_load_avg(now, cfs_rq);
 	decayed |= propagate_entity_load_avg(se);
 
+	trace_android_rvh_update_load_avg(now, cfs_rq, se);
+
 	if (!se->avg.last_update_time && (flags & DO_ATTACH)) {
 
 		/*
@@ -3896,6 +3902,8 @@ static void remove_entity_load_avg(struct sched_entity *se)
 
 	sync_entity_load_avg(se);
 
+	trace_android_rvh_remove_entity_load_avg(cfs_rq, se);
+
 	raw_spin_lock_irqsave(&cfs_rq->removed.lock, flags);
 	++cfs_rq->removed.nr;
 	cfs_rq->removed.util_avg	+= se->avg.util_avg;
@@ -8108,6 +8116,8 @@ static bool __update_blocked_fair(struct rq *rq, bool *done)
 	bool decayed = false;
 	int cpu = cpu_of(rq);
 
+	trace_android_rvh_update_blocked_fair(rq);
+
 	/*
 	 * Iterates the task_group tree in a bottom up fashion, see
 	 * list_add_leaf_cfs_rq() for details.
diff --git a/kernel/sched/pelt.c b/kernel/sched/pelt.c
index cd54fab42cf4e..e15a2fad146ef 100644
--- a/kernel/sched/pelt.c
+++ b/kernel/sched/pelt.c
@@ -30,6 +30,7 @@
 
 int pelt_load_avg_period = PELT32_LOAD_AVG_PERIOD;
 int pelt_load_avg_max = PELT32_LOAD_AVG_MAX;
+EXPORT_SYMBOL_GPL(pelt_load_avg_max);
 const u32 *pelt_runnable_avg_yN_inv = pelt32_runnable_avg_yN_inv;
 
 static int __init set_pelt(char *str)
@@ -216,9 +217,8 @@ accumulate_sum(u64 delta, struct sched_avg *sa,
  *   load_avg = u_0` + y*(u_0 + u_1*y + u_2*y^2 + ... )
  *            = u_0 + u_1*y + u_2*y^2 + ... [re-labeling u_i --> u_{i+1}]
  */
-static __always_inline int
-___update_load_sum(u64 now, struct sched_avg *sa,
-		  unsigned long load, unsigned long runnable, int running)
+int ___update_load_sum(u64 now, struct sched_avg *sa,
+		       unsigned long load, unsigned long runnable, int running)
 {
 	u64 delta;
 
@@ -268,6 +268,7 @@ ___update_load_sum(u64 now, struct sched_avg *sa,
 
 	return 1;
 }
+EXPORT_SYMBOL_GPL(___update_load_sum);
 
 /*
  * When syncing *_avg with *_sum, we must take into account the current
@@ -293,8 +294,7 @@ ___update_load_sum(u64 now, struct sched_avg *sa,
  * the period_contrib of cfs_rq when updating the sched_avg of a sched_entity
  * if it's more convenient.
  */
-static __always_inline void
-___update_load_avg(struct sched_avg *sa, unsigned long load)
+void ___update_load_avg(struct sched_avg *sa, unsigned long load)
 {
 	u32 divider = get_pelt_divider(sa);
 
@@ -305,6 +305,7 @@ ___update_load_avg(struct sched_avg *sa, unsigned long load)
 	sa->runnable_avg = div_u64(sa->runnable_sum, divider);
 	WRITE_ONCE(sa->util_avg, sa->util_sum / divider);
 }
+EXPORT_SYMBOL_GPL(___update_load_avg);
 
 /*
  * sched_entity:
-- 
GitLab


From fe0484006ffa6f07fa5eda9782ee783126989071 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Mon, 28 Mar 2022 21:48:43 +0800
Subject: [PATCH 4638/4878] ANDROID: Update the ABI representation

Leaf changes summary: 13 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 7 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 6 Added variables

7 Added functions:

  [A] 'function void ___update_load_avg(sched_avg*, unsigned long int)'
  [A] 'function int ___update_load_sum(u64, sched_avg*, unsigned long int, unsigned long int, int)'
  [A] 'function int __traceiter_android_rvh_attach_entity_load_avg(void*, cfs_rq*, sched_entity*)'
  [A] 'function int __traceiter_android_rvh_detach_entity_load_avg(void*, cfs_rq*, sched_entity*)'
  [A] 'function int __traceiter_android_rvh_remove_entity_load_avg(void*, cfs_rq*, sched_entity*)'
  [A] 'function int __traceiter_android_rvh_update_blocked_fair(void*, rq*)'
  [A] 'function int __traceiter_android_rvh_update_load_avg(void*, u64, cfs_rq*, sched_entity*)'

6 Added variables:

  [A] 'tracepoint __tracepoint_android_rvh_attach_entity_load_avg'
  [A] 'tracepoint __tracepoint_android_rvh_detach_entity_load_avg'
  [A] 'tracepoint __tracepoint_android_rvh_remove_entity_load_avg'
  [A] 'tracepoint __tracepoint_android_rvh_update_blocked_fair'
  [A] 'tracepoint __tracepoint_android_rvh_update_load_avg'
  [A] 'int pelt_load_avg_max'

Bug: 201260585
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ie75a373840f3cb531648d760eaba846065328d1a
---
 android/abi_gki_aarch64.xml     | 105 +++++++++++++++++++++++++-------
 android/abi_gki_aarch64_generic |  13 ++++
 2 files changed, 97 insertions(+), 21 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 73578e45a94f1..0bde293cf1c15 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -5,6 +5,8 @@
       <elf-symbol name='__ClearPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x274b4312'/>
       <elf-symbol name='__SetPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf251a50'/>
       <elf-symbol name='___ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d24c881'/>
+      <elf-symbol name='___update_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8b1b72f'/>
+      <elf-symbol name='___update_load_sum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd667f721'/>
       <elf-symbol name='__alloc_disk_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa46d7f6'/>
       <elf-symbol name='__alloc_pages_nodemask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818e45f3'/>
       <elf-symbol name='__alloc_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x949f7342'/>
@@ -202,6 +204,7 @@
       <elf-symbol name='__tasklet_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d2ab8ac'/>
       <elf-symbol name='__trace_bprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa20d01ba'/>
       <elf-symbol name='__traceiter_android_rvh_arm64_serror_panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe90dfa30'/>
+      <elf-symbol name='__traceiter_android_rvh_attach_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4a0bd87'/>
       <elf-symbol name='__traceiter_android_rvh_bad_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dc2e9e1'/>
       <elf-symbol name='__traceiter_android_rvh_cgroup_force_kthread_migration' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x147db077'/>
       <elf-symbol name='__traceiter_android_rvh_check_preempt_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79ac8f47'/>
@@ -209,6 +212,7 @@
       <elf-symbol name='__traceiter_android_rvh_cpu_overutilized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f085466'/>
       <elf-symbol name='__traceiter_android_rvh_dequeue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87a58d4a'/>
       <elf-symbol name='__traceiter_android_rvh_dequeue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd1dff4f'/>
+      <elf-symbol name='__traceiter_android_rvh_detach_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc383818'/>
       <elf-symbol name='__traceiter_android_rvh_die_kernel_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91f68209'/>
       <elf-symbol name='__traceiter_android_rvh_do_mem_abort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x669812d6'/>
       <elf-symbol name='__traceiter_android_rvh_do_sea' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1b06d02'/>
@@ -222,6 +226,7 @@
       <elf-symbol name='__traceiter_android_rvh_post_init_entity_util_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcfea98e'/>
       <elf-symbol name='__traceiter_android_rvh_preempt_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1585c762'/>
       <elf-symbol name='__traceiter_android_rvh_preempt_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3235e37a'/>
+      <elf-symbol name='__traceiter_android_rvh_remove_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b4a6c40'/>
       <elf-symbol name='__traceiter_android_rvh_sched_fork' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a88ecfe'/>
       <elf-symbol name='__traceiter_android_rvh_select_task_rq_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82cd0e36'/>
       <elf-symbol name='__traceiter_android_rvh_select_task_rq_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ec54a6'/>
@@ -232,6 +237,8 @@
       <elf-symbol name='__traceiter_android_rvh_uclamp_rq_util_with' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88355ef0'/>
       <elf-symbol name='__traceiter_android_rvh_ufs_complete_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x347db806'/>
       <elf-symbol name='__traceiter_android_rvh_ufs_reprogram_all_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac38cf23'/>
+      <elf-symbol name='__traceiter_android_rvh_update_blocked_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d9b54a'/>
+      <elf-symbol name='__traceiter_android_rvh_update_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeff8bb86'/>
       <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2968ee74'/>
       <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeda60f64'/>
       <elf-symbol name='__traceiter_android_vh_aes_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1574b'/>
@@ -3689,6 +3696,7 @@
       <elf-symbol name='__num_online_cpus' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc60d0620'/>
       <elf-symbol name='__per_cpu_offset' size='256' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x280f9f14'/>
       <elf-symbol name='__tracepoint_android_rvh_arm64_serror_panic' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eeb0795'/>
+      <elf-symbol name='__tracepoint_android_rvh_attach_entity_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9476c5e4'/>
       <elf-symbol name='__tracepoint_android_rvh_bad_mode' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11c4733a'/>
       <elf-symbol name='__tracepoint_android_rvh_cgroup_force_kthread_migration' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc180285'/>
       <elf-symbol name='__tracepoint_android_rvh_check_preempt_wakeup' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e34ad6c'/>
@@ -3696,6 +3704,7 @@
       <elf-symbol name='__tracepoint_android_rvh_cpu_overutilized' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29b33046'/>
       <elf-symbol name='__tracepoint_android_rvh_dequeue_task' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf992211e'/>
       <elf-symbol name='__tracepoint_android_rvh_dequeue_task_fair' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34684643'/>
+      <elf-symbol name='__tracepoint_android_rvh_detach_entity_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb186a022'/>
       <elf-symbol name='__tracepoint_android_rvh_die_kernel_fault' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33c9af1e'/>
       <elf-symbol name='__tracepoint_android_rvh_do_mem_abort' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadec6b55'/>
       <elf-symbol name='__tracepoint_android_rvh_do_sea' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23501356'/>
@@ -3709,6 +3718,7 @@
       <elf-symbol name='__tracepoint_android_rvh_post_init_entity_util_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa967c441'/>
       <elf-symbol name='__tracepoint_android_rvh_preempt_disable' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4ec0da4'/>
       <elf-symbol name='__tracepoint_android_rvh_preempt_enable' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d490a6'/>
+      <elf-symbol name='__tracepoint_android_rvh_remove_entity_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b69fe2c'/>
       <elf-symbol name='__tracepoint_android_rvh_sched_fork' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62081353'/>
       <elf-symbol name='__tracepoint_android_rvh_select_task_rq_fair' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bfae7d4'/>
       <elf-symbol name='__tracepoint_android_rvh_select_task_rq_rt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1f10509'/>
@@ -3719,6 +3729,8 @@
       <elf-symbol name='__tracepoint_android_rvh_uclamp_rq_util_with' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8974cb57'/>
       <elf-symbol name='__tracepoint_android_rvh_ufs_complete_init' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x149dd525'/>
       <elf-symbol name='__tracepoint_android_rvh_ufs_reprogram_all_keys' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c77d76'/>
+      <elf-symbol name='__tracepoint_android_rvh_update_blocked_fair' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3cb3aa'/>
+      <elf-symbol name='__tracepoint_android_rvh_update_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae1dc28'/>
       <elf-symbol name='__tracepoint_android_rvh_util_est_update' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c941f9'/>
       <elf-symbol name='__tracepoint_android_vh___get_user_pages_remote' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bfad40'/>
       <elf-symbol name='__tracepoint_android_vh_aes_decrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde5b1cc7'/>
@@ -3868,6 +3880,7 @@
       <elf-symbol name='param_ops_ulong' size='32' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f98ae36'/>
       <elf-symbol name='param_ops_ushort' size='32' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1acf3082'/>
       <elf-symbol name='pci_bus_type' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaed9424'/>
+      <elf-symbol name='pelt_load_avg_max' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3489dd53'/>
       <elf-symbol name='platform_bus' size='912' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c35e16'/>
       <elf-symbol name='platform_bus_type' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cefccc9'/>
       <elf-symbol name='pm_power_off' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60a32ea9'/>
@@ -79554,6 +79567,7 @@
         <parameter type-id='f0981eeb'/>
         <return type-id='95e97e5e'/>
       </function-type>
+      <pointer-type-def type-id='629c8d83' size-in-bits='64' id='c3e73f93'/>
       <qualified-type-def type-id='6bac1cb5' const='yes' id='c3f0f7d9'/>
       <pointer-type-def type-id='76b325f9' size-in-bits='64' id='c3f1f74d'/>
       <function-type size-in-bits='64' id='c3f42608'>
@@ -105448,6 +105462,19 @@
         <parameter type-id='80f4b756' name='func' filepath='lib/ratelimit.c' line='27' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='___update_load_avg' mangled-name='___update_load_avg' filepath='kernel/sched/pelt.c' line='297' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='___update_load_avg'>
+        <parameter type-id='c3e73f93' name='sa' filepath='kernel/sched/pelt.c' line='297' column='1'/>
+        <parameter type-id='7359adad' name='load' filepath='kernel/sched/pelt.c' line='297' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='___update_load_sum' mangled-name='___update_load_sum' filepath='kernel/sched/pelt.c' line='220' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='___update_load_sum'>
+        <parameter type-id='91ce1af9' name='now' filepath='kernel/sched/pelt.c' line='220' column='1'/>
+        <parameter type-id='c3e73f93' name='sa' filepath='kernel/sched/pelt.c' line='220' column='1'/>
+        <parameter type-id='7359adad' name='load' filepath='kernel/sched/pelt.c' line='221' column='1'/>
+        <parameter type-id='7359adad' name='runnable' filepath='kernel/sched/pelt.c' line='221' column='1'/>
+        <parameter type-id='95e97e5e' name='running' filepath='kernel/sched/pelt.c' line='221' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__alloc_disk_node' mangled-name='__alloc_disk_node' filepath='block/genhd.c' line='1715' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_disk_node'>
         <parameter type-id='95e97e5e' name='minors' filepath='block/genhd.c' line='1715' column='1'/>
         <parameter type-id='95e97e5e' name='node_id' filepath='block/genhd.c' line='1715' column='1'/>
@@ -106578,6 +106605,12 @@
         <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_attach_entity_load_avg' mangled-name='__traceiter_android_rvh_attach_entity_load_avg' filepath='include/trace/hooks/sched.h' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_attach_entity_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='408' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='408' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='408' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_bad_mode' mangled-name='__traceiter_android_rvh_bad_mode' filepath='include/trace/hooks/traps.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_bad_mode'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
         <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
@@ -106630,6 +106663,12 @@
         <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_detach_entity_load_avg' mangled-name='__traceiter_android_rvh_detach_entity_load_avg' filepath='include/trace/hooks/sched.h' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_detach_entity_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='412' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='412' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='412' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_die_kernel_fault' mangled-name='__traceiter_android_rvh_die_kernel_fault' filepath='include/trace/hooks/fault.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_die_kernel_fault'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
         <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
@@ -106719,6 +106758,12 @@
         <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_remove_entity_load_avg' mangled-name='__traceiter_android_rvh_remove_entity_load_avg' filepath='include/trace/hooks/sched.h' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_remove_entity_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='420' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='420' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='420' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_sched_fork' mangled-name='__traceiter_android_rvh_sched_fork' filepath='include/trace/hooks/sched.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_sched_fork'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='149' column='1'/>
         <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='149' column='1'/>
@@ -106791,6 +106836,18 @@
         <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_update_blocked_fair' mangled-name='__traceiter_android_rvh_update_blocked_fair' filepath='include/trace/hooks/sched.h' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_blocked_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='424' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='424' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='__traceiter_android_rvh_update_load_avg' mangled-name='__traceiter_android_rvh_update_load_avg' filepath='include/trace/hooks/sched.h' line='416' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
+        <parameter type-id='91ce1af9' name='now' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_util_est_update' mangled-name='__traceiter_android_rvh_util_est_update' filepath='include/trace/hooks/sched.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_util_est_update'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
         <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
@@ -107258,6 +107315,7 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='__tracepoint_android_rvh_arm64_serror_panic' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_arm64_serror_panic' visibility='default' filepath='include/trace/hooks/traps.h' line='24' column='1' elf-symbol-id='__tracepoint_android_rvh_arm64_serror_panic'/>
+      <var-decl name='__tracepoint_android_rvh_attach_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_attach_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='408' column='1' elf-symbol-id='__tracepoint_android_rvh_attach_entity_load_avg'/>
       <var-decl name='__tracepoint_android_rvh_bad_mode' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_bad_mode' visibility='default' filepath='include/trace/hooks/traps.h' line='20' column='1' elf-symbol-id='__tracepoint_android_rvh_bad_mode'/>
       <var-decl name='__tracepoint_android_rvh_cgroup_force_kthread_migration' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cgroup_force_kthread_migration' visibility='default' filepath='include/trace/hooks/cgroup.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_cgroup_force_kthread_migration'/>
       <var-decl name='__tracepoint_android_rvh_check_preempt_wakeup' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_check_preempt_wakeup' visibility='default' filepath='include/trace/hooks/sched.h' line='269' column='1' elf-symbol-id='__tracepoint_android_rvh_check_preempt_wakeup'/>
@@ -107265,6 +107323,7 @@
       <var-decl name='__tracepoint_android_rvh_cpu_overutilized' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_overutilized' visibility='default' filepath='include/trace/hooks/sched.h' line='124' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_overutilized'/>
       <var-decl name='__tracepoint_android_rvh_dequeue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='39' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task'/>
       <var-decl name='__tracepoint_android_rvh_dequeue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='372' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task_fair'/>
+      <var-decl name='__tracepoint_android_rvh_detach_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_detach_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='412' column='1' elf-symbol-id='__tracepoint_android_rvh_detach_entity_load_avg'/>
       <var-decl name='__tracepoint_android_rvh_die_kernel_fault' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_die_kernel_fault' visibility='default' filepath='include/trace/hooks/fault.h' line='15' column='1' elf-symbol-id='__tracepoint_android_rvh_die_kernel_fault'/>
       <var-decl name='__tracepoint_android_rvh_do_mem_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_mem_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='23' column='1' elf-symbol-id='__tracepoint_android_rvh_do_mem_abort'/>
       <var-decl name='__tracepoint_android_rvh_do_sea' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sea' visibility='default' filepath='include/trace/hooks/fault.h' line='19' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sea'/>
@@ -107278,6 +107337,7 @@
       <var-decl name='__tracepoint_android_rvh_post_init_entity_util_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_post_init_entity_util_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='329' column='1' elf-symbol-id='__tracepoint_android_rvh_post_init_entity_util_avg'/>
       <var-decl name='__tracepoint_android_rvh_preempt_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_disable'/>
       <var-decl name='__tracepoint_android_rvh_preempt_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_enable'/>
+      <var-decl name='__tracepoint_android_rvh_remove_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_remove_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='420' column='1' elf-symbol-id='__tracepoint_android_rvh_remove_entity_load_avg'/>
       <var-decl name='__tracepoint_android_rvh_sched_fork' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_sched_fork' visibility='default' filepath='include/trace/hooks/sched.h' line='149' column='1' elf-symbol-id='__tracepoint_android_rvh_sched_fork'/>
       <var-decl name='__tracepoint_android_rvh_select_task_rq_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_fair'/>
       <var-decl name='__tracepoint_android_rvh_select_task_rq_rt' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_rt' visibility='default' filepath='include/trace/hooks/sched.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_rt'/>
@@ -107288,6 +107348,8 @@
       <var-decl name='__tracepoint_android_rvh_uclamp_rq_util_with' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_rq_util_with' visibility='default' filepath='include/trace/hooks/sched.h' line='296' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_rq_util_with'/>
       <var-decl name='__tracepoint_android_rvh_ufs_complete_init' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_complete_init' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_complete_init'/>
       <var-decl name='__tracepoint_android_rvh_ufs_reprogram_all_keys' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_reprogram_all_keys' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_reprogram_all_keys'/>
+      <var-decl name='__tracepoint_android_rvh_update_blocked_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_blocked_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='424' column='1' elf-symbol-id='__tracepoint_android_rvh_update_blocked_fair'/>
+      <var-decl name='__tracepoint_android_rvh_update_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='416' column='1' elf-symbol-id='__tracepoint_android_rvh_update_load_avg'/>
       <var-decl name='__tracepoint_android_rvh_util_est_update' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_util_est_update' visibility='default' filepath='include/trace/hooks/sched.h' line='317' column='1' elf-symbol-id='__tracepoint_android_rvh_util_est_update'/>
       <var-decl name='__tracepoint_android_vh___get_user_pages_remote' type-id='4ca0c298' mangled-name='__tracepoint_android_vh___get_user_pages_remote' visibility='default' filepath='include/trace/hooks/gup.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh___get_user_pages_remote'/>
       <var-decl name='__tracepoint_android_vh_aes_decrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_decrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_aes_decrypt'/>
@@ -107383,9 +107445,9 @@
         <parameter type-id='80f4b756' name='name' filepath='fs/char_dev.c' line='336' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='__update_load_avg_blocked_se' mangled-name='__update_load_avg_blocked_se' filepath='kernel/sched/pelt.c' line='335' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__update_load_avg_blocked_se'>
-        <parameter type-id='91ce1af9' name='now' filepath='kernel/sched/pelt.c' line='335' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='kernel/sched/pelt.c' line='335' column='1'/>
+      <function-decl name='__update_load_avg_blocked_se' mangled-name='__update_load_avg_blocked_se' filepath='kernel/sched/pelt.c' line='336' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__update_load_avg_blocked_se'>
+        <parameter type-id='91ce1af9' name='now' filepath='kernel/sched/pelt.c' line='336' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='kernel/sched/pelt.c' line='336' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='__usb_create_hcd' mangled-name='__usb_create_hcd' filepath='drivers/usb/core/hcd.c' line='2437' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__usb_create_hcd'>
@@ -118557,6 +118619,7 @@
         <parameter type-id='1dc6a898' name='val' filepath='drivers/pci/access.c' line='465' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <var-decl name='pelt_load_avg_max' type-id='95e97e5e' mangled-name='pelt_load_avg_max' visibility='default' filepath='kernel/sched/pelt.c' line='32' column='1' elf-symbol-id='pelt_load_avg_max'/>
       <function-decl name='perf_aux_output_begin' mangled-name='perf_aux_output_begin' filepath='kernel/events/ring_buffer.c' line='361' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='perf_aux_output_begin'>
         <parameter type-id='d3b23a45' name='handle' filepath='kernel/events/ring_buffer.c' line='361' column='1'/>
         <parameter type-id='2bf16f59' name='event' filepath='kernel/events/ring_buffer.c' line='362' column='1'/>
@@ -120223,38 +120286,38 @@
         <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='6690' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sched_trace_cfs_rq_avg' mangled-name='sched_trace_cfs_rq_avg' filepath='kernel/sched/fair.c' line='11527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_avg'>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11527' column='1'/>
+      <function-decl name='sched_trace_cfs_rq_avg' mangled-name='sched_trace_cfs_rq_avg' filepath='kernel/sched/fair.c' line='11537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_avg'>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11537' column='1'/>
         <return type-id='847e6fee'/>
       </function-decl>
-      <function-decl name='sched_trace_cfs_rq_cpu' mangled-name='sched_trace_cfs_rq_cpu' filepath='kernel/sched/fair.c' line='11551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_cpu'>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11551' column='1'/>
+      <function-decl name='sched_trace_cfs_rq_cpu' mangled-name='sched_trace_cfs_rq_cpu' filepath='kernel/sched/fair.c' line='11561' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_cpu'>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11561' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sched_trace_cfs_rq_path' mangled-name='sched_trace_cfs_rq_path' filepath='kernel/sched/fair.c' line='11537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_path'>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11537' column='1'/>
-        <parameter type-id='26a90f95' name='str' filepath='kernel/sched/fair.c' line='11537' column='1'/>
-        <parameter type-id='95e97e5e' name='len' filepath='kernel/sched/fair.c' line='11537' column='1'/>
+      <function-decl name='sched_trace_cfs_rq_path' mangled-name='sched_trace_cfs_rq_path' filepath='kernel/sched/fair.c' line='11547' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_path'>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='kernel/sched/fair.c' line='11547' column='1'/>
+        <parameter type-id='26a90f95' name='str' filepath='kernel/sched/fair.c' line='11547' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='kernel/sched/fair.c' line='11547' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
-      <function-decl name='sched_trace_rd_span' mangled-name='sched_trace_rd_span' filepath='kernel/sched/fair.c' line='11605' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rd_span'>
-        <parameter type-id='c13bca88' name='rd' filepath='kernel/sched/fair.c' line='11605' column='1'/>
+      <function-decl name='sched_trace_rd_span' mangled-name='sched_trace_rd_span' filepath='kernel/sched/fair.c' line='11615' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rd_span'>
+        <parameter type-id='c13bca88' name='rd' filepath='kernel/sched/fair.c' line='11615' column='1'/>
         <return type-id='5f8a1ac4'/>
       </function-decl>
-      <function-decl name='sched_trace_rq_avg_dl' mangled-name='sched_trace_rq_avg_dl' filepath='kernel/sched/fair.c' line='11567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_dl'>
-        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11567' column='1'/>
+      <function-decl name='sched_trace_rq_avg_dl' mangled-name='sched_trace_rq_avg_dl' filepath='kernel/sched/fair.c' line='11577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_dl'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11577' column='1'/>
         <return type-id='847e6fee'/>
       </function-decl>
-      <function-decl name='sched_trace_rq_avg_irq' mangled-name='sched_trace_rq_avg_irq' filepath='kernel/sched/fair.c' line='11577' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_irq'>
-        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11577' column='1'/>
+      <function-decl name='sched_trace_rq_avg_irq' mangled-name='sched_trace_rq_avg_irq' filepath='kernel/sched/fair.c' line='11587' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_irq'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11587' column='1'/>
         <return type-id='847e6fee'/>
       </function-decl>
-      <function-decl name='sched_trace_rq_avg_rt' mangled-name='sched_trace_rq_avg_rt' filepath='kernel/sched/fair.c' line='11557' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_rt'>
-        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11557' column='1'/>
+      <function-decl name='sched_trace_rq_avg_rt' mangled-name='sched_trace_rq_avg_rt' filepath='kernel/sched/fair.c' line='11567' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_avg_rt'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11567' column='1'/>
         <return type-id='847e6fee'/>
       </function-decl>
-      <function-decl name='sched_trace_rq_cpu' mangled-name='sched_trace_rq_cpu' filepath='kernel/sched/fair.c' line='11587' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_cpu'>
-        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11587' column='1'/>
+      <function-decl name='sched_trace_rq_cpu' mangled-name='sched_trace_rq_cpu' filepath='kernel/sched/fair.c' line='11597' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_rq_cpu'>
+        <parameter type-id='6ed6b432' name='rq' filepath='kernel/sched/fair.c' line='11597' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='sched_uclamp_used' type-id='237c0d27' mangled-name='sched_uclamp_used' visibility='default' filepath='kernel/sched/core.c' line='966' column='1' elf-symbol-id='sched_uclamp_used'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 0363117ed73cb..be6f0884e59ee 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1493,6 +1493,7 @@
   pci_write_config_dword
   pci_write_config_word
   PDE_DATA
+  pelt_load_avg_max
   __per_cpu_offset
   perf_aux_output_begin
   perf_aux_output_end
@@ -2148,6 +2149,7 @@
   trace_event_reg
   trace_handle_return
   __traceiter_android_rvh_arm64_serror_panic
+  __traceiter_android_rvh_attach_entity_load_avg
   __traceiter_android_rvh_bad_mode
   __traceiter_android_rvh_cgroup_force_kthread_migration
   __traceiter_android_rvh_check_preempt_wakeup
@@ -2155,6 +2157,7 @@
   __traceiter_android_rvh_cpu_overutilized
   __traceiter_android_rvh_dequeue_task
   __traceiter_android_rvh_dequeue_task_fair
+  __traceiter_android_rvh_detach_entity_load_avg
   __traceiter_android_rvh_die_kernel_fault
   __traceiter_android_rvh_do_mem_abort
   __traceiter_android_rvh_do_sea
@@ -2168,6 +2171,7 @@
   __traceiter_android_rvh_post_init_entity_util_avg
   __traceiter_android_rvh_preempt_disable
   __traceiter_android_rvh_preempt_enable
+  __traceiter_android_rvh_remove_entity_load_avg
   __traceiter_android_rvh_sched_fork
   __traceiter_android_rvh_select_task_rq_fair
   __traceiter_android_rvh_select_task_rq_rt
@@ -2178,6 +2182,8 @@
   __traceiter_android_rvh_uclamp_rq_util_with
   __traceiter_android_rvh_ufs_complete_init
   __traceiter_android_rvh_ufs_reprogram_all_keys
+  __traceiter_android_rvh_update_blocked_fair
+  __traceiter_android_rvh_update_load_avg
   __traceiter_android_rvh_util_est_update
   __traceiter_android_vh_arch_set_freq_scale
   __traceiter_android_vh_cma_alloc_finish
@@ -2244,6 +2250,7 @@
   __traceiter_suspend_resume
   trace_output_call
   __tracepoint_android_rvh_arm64_serror_panic
+  __tracepoint_android_rvh_attach_entity_load_avg
   __tracepoint_android_rvh_bad_mode
   __tracepoint_android_rvh_cgroup_force_kthread_migration
   __tracepoint_android_rvh_check_preempt_wakeup
@@ -2251,6 +2258,7 @@
   __tracepoint_android_rvh_cpu_overutilized
   __tracepoint_android_rvh_dequeue_task
   __tracepoint_android_rvh_dequeue_task_fair
+  __tracepoint_android_rvh_detach_entity_load_avg
   __tracepoint_android_rvh_die_kernel_fault
   __tracepoint_android_rvh_do_mem_abort
   __tracepoint_android_rvh_do_sea
@@ -2264,6 +2272,7 @@
   __tracepoint_android_rvh_post_init_entity_util_avg
   __tracepoint_android_rvh_preempt_disable
   __tracepoint_android_rvh_preempt_enable
+  __tracepoint_android_rvh_remove_entity_load_avg
   __tracepoint_android_rvh_sched_fork
   __tracepoint_android_rvh_select_task_rq_fair
   __tracepoint_android_rvh_select_task_rq_rt
@@ -2274,6 +2283,8 @@
   __tracepoint_android_rvh_uclamp_rq_util_with
   __tracepoint_android_rvh_ufs_complete_init
   __tracepoint_android_rvh_ufs_reprogram_all_keys
+  __tracepoint_android_rvh_update_blocked_fair
+  __tracepoint_android_rvh_update_load_avg
   __tracepoint_android_rvh_util_est_update
   __tracepoint_android_vh_arch_set_freq_scale
   __tracepoint_android_vh_cma_alloc_finish
@@ -2409,7 +2420,9 @@
   unregister_virtio_driver
   up
   update_devfreq
+  ___update_load_avg
   __update_load_avg_blocked_se
+  ___update_load_sum
   update_rq_clock
   up_read
   up_write
-- 
GitLab


From 588affc843da96cda1747b4caa8fcd9bd8796d3c Mon Sep 17 00:00:00 2001
From: Xie Yongji <xieyongji@bytedance.com>
Date: Tue, 26 Oct 2021 22:40:15 +0800
Subject: [PATCH 4639/4878] BACKPORT: virtio-blk: Use blk_validate_block_size()
 to validate block size

The block layer can't support a block size larger than
page size yet. And a block size that's too small or
not a power of two won't work either. If a misconfigured
device presents an invalid block size in configuration space,
it will result in the kernel crash something like below:

[  506.154324] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  506.160416] RIP: 0010:create_empty_buffers+0x24/0x100
[  506.174302] Call Trace:
[  506.174651]  create_page_buffers+0x4d/0x60
[  506.175207]  block_read_full_page+0x50/0x380
[  506.175798]  ? __mod_lruvec_page_state+0x60/0xa0
[  506.176412]  ? __add_to_page_cache_locked+0x1b2/0x390
[  506.177085]  ? blkdev_direct_IO+0x4a0/0x4a0
[  506.177644]  ? scan_shadow_nodes+0x30/0x30
[  506.178206]  ? lru_cache_add+0x42/0x60
[  506.178716]  do_read_cache_page+0x695/0x740
[  506.179278]  ? read_part_sector+0xe0/0xe0
[  506.179821]  read_part_sector+0x36/0xe0
[  506.180337]  adfspart_check_ICS+0x32/0x320
[  506.180890]  ? snprintf+0x45/0x70
[  506.181350]  ? read_part_sector+0xe0/0xe0
[  506.181906]  bdev_disk_changed+0x229/0x5c0
[  506.182483]  blkdev_get_whole+0x6d/0x90
[  506.183013]  blkdev_get_by_dev+0x122/0x2d0
[  506.183562]  device_add_disk+0x39e/0x3c0
[  506.184472]  virtblk_probe+0x3f8/0x79b [virtio_blk]
[  506.185461]  virtio_dev_probe+0x15e/0x1d0 [virtio]

So let's use a block layer helper to validate the block size.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20211026144015.188-5-xieyongji@bytedance.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit 57a13a5b8157d9a8606490aaa1b805bafe6c37e1)
[keirf@: Implement missing error path]
Bug: 226679849
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I78cde1101baf8da2f68d0b9f942a0f1ec89fb30e
---
 drivers/block/virtio_blk.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index a6d20d156a6aa..73f30b5c2f523 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -837,9 +837,17 @@ static int virtblk_probe(struct virtio_device *vdev)
 	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_BLK_SIZE,
 				   struct virtio_blk_config, blk_size,
 				   &blk_size);
-	if (!err)
+	if (!err) {
+		err = blk_validate_block_size(blk_size);
+		if (err) {
+			dev_err(&vdev->dev,
+				"virtio_blk: invalid block size: 0x%x\n",
+				blk_size);
+			goto out_cleanup_disk;
+		}
+
 		blk_queue_logical_block_size(q, blk_size);
-	else
+	} else
 		blk_size = queue_logical_block_size(q);
 
 	/* Use topology information if available */
@@ -906,6 +914,8 @@ static int virtblk_probe(struct virtio_device *vdev)
 	device_add_disk(&vdev->dev, vblk->disk, virtblk_attr_groups);
 	return 0;
 
+out_cleanup_disk:
+	blk_cleanup_queue(vblk->disk->queue);
 out_free_tags:
 	blk_mq_free_tag_set(&vblk->tag_set);
 out_put_disk:
-- 
GitLab


From bbe5c8559278a209454c7066c1fa01878f4a16d5 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 25 Mar 2022 11:28:09 +0000
Subject: [PATCH 4640/4878] Revert "ANDROID: KVM: arm64: Allow userspace to
 receive SHARE and UNSHARE notifications"

This reverts commit 7f19cf521f49f3df6801cb2acf421215c2a35cb2.

These notifications are unused by crosvm and are no longer required now
that the host takes care of injecting a SEGV on an illegal memory access
from userspace.

Bug: 226564150
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I22c3e49b4aa5f023961c8849b79e2e0a21ebf0c1
---
 arch/arm64/kvm/arm.c        | 3 +--
 arch/arm64/kvm/hypercalls.c | 8 --------
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 26d52c39c15f9..60b695985b18f 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -64,8 +64,7 @@ static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
 DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
 
 /* KVM "vendor" hypercalls which may be forwarded to userspace on request. */
-#define KVM_EXIT_HYPERCALL_VALID_MASK	(BIT(ARM_SMCCC_KVM_FUNC_MEM_SHARE) |	\
-					 BIT(ARM_SMCCC_KVM_FUNC_MEM_UNSHARE))
+#define KVM_EXIT_HYPERCALL_VALID_MASK	(0)
 
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index e7c71396b7e06..5d31640d745f0 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -163,14 +163,6 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 	case ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID:
 		kvm_ptp_get_time(vcpu, val);
 		break;
-	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_SHARE_FUNC_ID:
-		if (!kvm_vcpu_exit_hcall(vcpu, ARM_SMCCC_KVM_FUNC_MEM_SHARE, 3))
-			return 0;
-		break;
-	case ARM_SMCCC_VENDOR_HYP_KVM_MEM_UNSHARE_FUNC_ID:
-		if (!kvm_vcpu_exit_hcall(vcpu, ARM_SMCCC_KVM_FUNC_MEM_UNSHARE, 3))
-			return 0;
-		break;
 	case ARM_SMCCC_VENDOR_HYP_KVM_MMIO_GUARD_MAP_FUNC_ID:
 		if (kvm_vm_is_protected(vcpu->kvm) && !topup_hyp_memcache(vcpu))
 			val[0] = SMCCC_RET_SUCCESS;
-- 
GitLab


From a246583fcc4770b33d0e5ab2ca926022ac053b8d Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 25 Mar 2022 11:30:04 +0000
Subject: [PATCH 4641/4878] Revert "ANDROID: BACKPORT: KVM: arm64: Add initial
 support for KVM_CAP_EXIT_HYPERCALL"

This reverts commit e853c3b1726fe561617db754188d8354fba1350a.

This capability is unused, so remove it to avoid UAPI divergence from
upstream.

Bug: 226564150
[willdeacon@: Also removed additional instance in arch/arm64/kvm/arm.c]
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ib3e929a5fc81dc5c9c1ff8512d48f63bdda5c404
---
 arch/arm64/include/asm/kvm_host.h |  2 --
 arch/arm64/kvm/arm.c              | 23 -----------------------
 arch/arm64/kvm/hypercalls.c       | 18 ------------------
 include/uapi/linux/kvm.h          |  2 --
 4 files changed, 45 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 08bf6cc097431..1d914fbcddedb 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -212,8 +212,6 @@ struct kvm_arch {
 	u8 pfr0_csv3;
 
 	struct kvm_protected_vm pkvm;
-
-	u64 hypercall_exit_enabled;
 };
 
 struct kvm_protected_vcpu {
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 60b695985b18f..e2b5dec6d6326 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -63,9 +63,6 @@ static bool vgic_present;
 static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
 DEFINE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
 
-/* KVM "vendor" hypercalls which may be forwarded to userspace on request. */
-#define KVM_EXIT_HYPERCALL_VALID_MASK	(0)
-
 int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
 {
 	return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE;
@@ -116,16 +113,6 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 		}
 		mutex_unlock(&kvm->lock);
 		break;
-	case KVM_CAP_EXIT_HYPERCALL:
-		if (cap->args[0] & ~KVM_EXIT_HYPERCALL_VALID_MASK)
-			return -EINVAL;
-
-		if (cap->args[1] || cap->args[2] || cap->args[3])
-			return -EINVAL;
-
-		WRITE_ONCE(kvm->arch.hypercall_exit_enabled, cap->args[0]);
-		r = 0;
-		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -313,9 +300,6 @@ static int kvm_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_ARM_PTRAUTH_GENERIC:
 		r = system_has_full_ptr_auth();
 		break;
-	case KVM_CAP_EXIT_HYPERCALL:
-		r = KVM_EXIT_HYPERCALL_VALID_MASK;
-		break;
 	default:
 		r = 0;
 	}
@@ -340,7 +324,6 @@ static int pkvm_check_extension(struct kvm *kvm, long ext, int kvm_cap)
 	case KVM_CAP_MAX_VCPU_ID:
 	case KVM_CAP_MSI_DEVID:
 	case KVM_CAP_ARM_VM_IPA_SIZE:
-	case KVM_CAP_EXIT_HYPERCALL:
 		r = kvm_cap;
 		break;
 	case KVM_CAP_GUEST_DEBUG_HW_BPS:
@@ -891,12 +874,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 		ret = kvm_handle_mmio_return(vcpu);
 		if (ret)
 			return ret;
-	} else if (run->exit_reason == KVM_EXIT_HYPERCALL) {
-		smccc_set_retval(vcpu,
-				 vcpu->run->hypercall.ret,
-				 vcpu->run->hypercall.args[0],
-				 vcpu->run->hypercall.args[1],
-				 vcpu->run->hypercall.args[2]);
 	}
 
 	vcpu_load(vcpu);
diff --git a/arch/arm64/kvm/hypercalls.c b/arch/arm64/kvm/hypercalls.c
index 5d31640d745f0..bb04eb91e5e61 100644
--- a/arch/arm64/kvm/hypercalls.c
+++ b/arch/arm64/kvm/hypercalls.c
@@ -58,24 +58,6 @@ static void kvm_ptp_get_time(struct kvm_vcpu *vcpu, u64 *val)
 	val[3] = lower_32_bits(cycles);
 }
 
-static int kvm_vcpu_exit_hcall(struct kvm_vcpu *vcpu, u32 nr, u32 nr_args)
-{
-	u64 mask = vcpu->kvm->arch.hypercall_exit_enabled;
-	u32 i;
-
-	if (nr_args > 6 || !(mask & BIT(nr)))
-		return -EINVAL;
-
-	vcpu->run->exit_reason		= KVM_EXIT_HYPERCALL;
-	vcpu->run->hypercall.nr		= nr;
-
-	for (i = 0; i < nr_args; ++i)
-		vcpu->run->hypercall.args[i] = vcpu_get_reg(vcpu, i + 1);
-
-	vcpu->run->hypercall.longmode = !vcpu_mode_is_32bit(vcpu);
-	return 0;
-}
-
 int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
 {
 	u32 func_id = smccc_get_function(vcpu);
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 2380257670457..facb29ebef2dd 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1072,9 +1072,7 @@ struct kvm_ppc_resize_hpt {
 /*
 #define KVM_CAP_HYPERV_ENFORCE_CPUID 199
 #define KVM_CAP_SREGS2 200
-*/
 #define KVM_CAP_EXIT_HYPERCALL 201
-/*
 #define KVM_CAP_PPC_RPT_INVALIDATE 202
 #define KVM_CAP_BINARY_STATS_FD 203
 #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
-- 
GitLab


From a75cb9df82a220a6d6e19d6575b0c4f909577959 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Fri, 25 Mar 2022 11:31:35 +0000
Subject: [PATCH 4642/4878] ANDROID: KVM: arm64: Drop FOLL_FORCE when pinning
 guest memory pages

Passing FOLL_FORCE when pinning guest memory pages was intended to allow
the VMM to map guest memory as PROT_NONE without prohibiting access from
the guest. As it turns out, crosvm doesn't implement this, and since
the host kernel will inject a signal into the VMM on a bad access
irrespective of the stage-1 permissions, we can drop the FOLL_FORCE flag
altogether.

Bug: 226564150
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: If21091b6adf3dbe4155c5c840753c912d283b159
---
 arch/arm64/kvm/mmu.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 8e8d90831c3d0..20249b7492f32 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1163,10 +1163,7 @@ static int pkvm_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 			  unsigned long hva)
 {
 	struct mm_struct *mm = current->mm;
-	unsigned int flags = FOLL_FORCE |
-			     FOLL_HWPOISON |
-			     FOLL_LONGTERM |
-			     FOLL_WRITE;
+	unsigned int flags = FOLL_HWPOISON | FOLL_LONGTERM | FOLL_WRITE;
 	struct kvm_pinned_page *ppage;
 	struct kvm *kvm = vcpu->kvm;
 	struct page *page;
-- 
GitLab


From 6eaed0b8b769b78fe237a13d757adb4bf1a883c6 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 15 Mar 2022 11:37:28 +0000
Subject: [PATCH 4643/4878] ANDROID: KVM: arm64: iommu: Harden
 __pkvm_iommu_pm_notify

Currently __pkvm_iommu_pm_notify always changes the value of
dev->powered following a suspend/resume attempt. This could potentially
be abused to force the hypervisor to stop issuing updates to an S2MPU
and preserving an old/invalid state.

Modify to only update the power state if suspend/resume was successful.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I285fc822e9fc926c49b9b5e69446790e1edccafb
---
 arch/arm64/kvm/hyp/nvhe/iommu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 9b659abc79570..2fed6433e065f 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -360,10 +360,12 @@ int __pkvm_iommu_pm_notify(unsigned long dev_id, enum pkvm_iommu_pm_event event)
 	if (dev) {
 		if (event == PKVM_IOMMU_PM_SUSPEND) {
 			ret = dev->ops->suspend ? dev->ops->suspend(dev) : 0;
-			dev->powered = !!ret;
+			if (!ret)
+				dev->powered = false;
 		} else if (event == PKVM_IOMMU_PM_RESUME) {
 			ret = dev->ops->resume ? dev->ops->resume(dev) : 0;
-			dev->powered = !ret;
+			if (!ret)
+				dev->powered = true;
 		} else {
 			ret = -EINVAL;
 		}
-- 
GitLab


From acb9a25416ad028354393eb44adf512a4d7ce567 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 25 Mar 2022 08:33:25 +0000
Subject: [PATCH 4644/4878] ANDROID: KVM: arm64: iommu: Free memory on
 registration error

Memory for IOMMU device entries gets allocated from a pool donated by
the host. It is possible for pkvm_iommu_register() to allocate the
memory and then fail, in which case the memory remains unused but not
freed.

Refactor the code such that the host lock covers the entire section
where the memory is allocated. This way we can return the memory back to
the linear allocator if an error is returned.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I8c1650ba3e545741144d793de506e93c4066896f
---
 arch/arm64/kvm/hyp/nvhe/iommu.c | 81 ++++++++++++++++++++++-----------
 1 file changed, 54 insertions(+), 27 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 2fed6433e065f..30401b2640d93 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -31,6 +31,9 @@ static struct pkvm_iommu_driver iommu_drivers[PKVM_IOMMU_NR_DRIVERS];
 /* IOMMU device list. Must only be accessed with host_kvm.lock held. */
 static LIST_HEAD(iommu_list);
 
+static void *iommu_mem_pool;
+static size_t iommu_mem_remaining;
+
 static void assert_host_component_locked(void)
 {
 	hyp_assert_lock_held(&host_kvm.lock);
@@ -89,41 +92,56 @@ static inline bool is_driver_ready(struct pkvm_iommu_driver *drv)
 	return atomic_read(&drv->state) == IOMMU_DRIVER_READY;
 }
 
+static size_t __iommu_alloc_size(struct pkvm_iommu_driver *drv)
+{
+	return ALIGN(sizeof(struct pkvm_iommu) + drv->ops->data_size,
+		     sizeof(unsigned long));
+}
+
 /* Global memory pool for allocating IOMMU list entry structs. */
-static inline struct pkvm_iommu *
-alloc_iommu_list_entry(struct pkvm_iommu_driver *drv, void *mem, size_t mem_size)
+static inline struct pkvm_iommu *alloc_iommu(struct pkvm_iommu_driver *drv,
+					     void *mem, size_t mem_size)
 {
-	static void *pool;
-	static size_t remaining;
-	static DEFINE_HYP_SPINLOCK(lock);
-	size_t size = sizeof(struct pkvm_iommu) + drv->ops->data_size;
+	size_t size = __iommu_alloc_size(drv);
 	void *ptr;
 
-	size = ALIGN(size, sizeof(unsigned long));
-
-	hyp_spin_lock(&lock);
+	assert_host_component_locked();
 
 	/*
 	 * If new memory is being provided, replace the existing pool with it.
 	 * Any remaining memory in the pool is discarded.
 	 */
 	if (mem && mem_size) {
-		pool = mem;
-		remaining = mem_size;
+		iommu_mem_pool = mem;
+		iommu_mem_remaining = mem_size;
 	}
 
-	if (size <= remaining) {
-		ptr = pool;
-		pool += size;
-		remaining -= size;
-	} else {
-		ptr = NULL;
-	}
+	if (size > iommu_mem_remaining)
+		return NULL;
 
-	hyp_spin_unlock(&lock);
+	ptr = iommu_mem_pool;
+	iommu_mem_pool += size;
+	iommu_mem_remaining -= size;
 	return ptr;
 }
 
+static inline void free_iommu(struct pkvm_iommu_driver *drv, struct pkvm_iommu *ptr)
+{
+	size_t size = __iommu_alloc_size(drv);
+
+	assert_host_component_locked();
+
+	if (!ptr)
+		return;
+
+	/* Only allow freeing the last allocated buffer. */
+	if ((void*)ptr + size != iommu_mem_pool)
+		return;
+
+	iommu_mem_pool -= size;
+	iommu_mem_remaining += size;
+}
+
 static bool is_overlap(phys_addr_t r1_start, size_t r1_size,
 		       phys_addr_t r2_start, size_t r2_size)
 {
@@ -310,16 +328,22 @@ int __pkvm_iommu_register(unsigned long dev_id,
 			return ret;
 	}
 
+	host_lock_component();
+
 	/* Allocate memory for the new device entry. */
-	dev = alloc_iommu_list_entry(drv, mem_va, mem_size);
-	if (!dev)
-		return -ENOMEM;
+	dev = alloc_iommu(drv, mem_va, mem_size);
+	if (!dev) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	/* Create EL2 mapping for the device. */
 	dev_va = (void *)__pkvm_create_private_mapping(dev_pa, dev_size,
 						       PAGE_HYP_DEVICE);
-	if (IS_ERR(dev_va))
-		return PTR_ERR(dev_va);
+	if (IS_ERR(dev_va)) {
+		ret = PTR_ERR(dev_va);
+		goto out;
+	}
 
 	/* Populate the new device entry. */
 	*dev = (struct pkvm_iommu){
@@ -330,14 +354,15 @@ int __pkvm_iommu_register(unsigned long dev_id,
 		.size = dev_size,
 	};
 
-	/* Take the host_kvm lock to block host stage-2 changes. */
-	host_lock_component();
 	if (!validate_against_existing_iommus(dev)) {
 		ret = -EBUSY;
 		goto out;
 	}
 
-	/* Unmap the device's MMIO range from host stage-2. */
+	/*
+	 * Unmap the device's MMIO range from host stage-2. Future attempts to
+	 * map will be blocked by pkvm_iommu_host_stage2_adjust_range.
+	 */
 	ret = host_stage2_unmap_dev_locked(dev_pa, dev_size);
 	if (ret)
 		goto out;
@@ -346,6 +371,8 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	list_add_tail(&dev->list, &iommu_list);
 
 out:
+	if (ret)
+		free_iommu(drv, dev);
 	host_unlock_component();
 	return ret;
 }
-- 
GitLab


From e6574a68fafc1961150d657f0ebf882c68afbb5b Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Fri, 25 Mar 2022 19:38:21 +0000
Subject: [PATCH 4645/4878] ANDROID: KVM: arm64: iommu: Create private mapping
 last

Private EL2 mappings currently cannot be removed. Move the creation of
IOMMU device mappings at the end of the registration function so that
other errors do not result in unnecessary mappings.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I3139e9af3345f157295eb72441a7cf3cc055116d
---
 arch/arm64/kvm/hyp/nvhe/iommu.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 30401b2640d93..fcb842aae8924 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -293,7 +293,7 @@ int __pkvm_iommu_register(unsigned long dev_id,
 {
 	struct pkvm_iommu *dev = NULL;
 	struct pkvm_iommu_driver *drv;
-	void *dev_va, *mem_va = NULL;
+	void *mem_va = NULL;
 	int ret = 0;
 
 	drv = get_driver(drv_id);
@@ -337,20 +337,11 @@ int __pkvm_iommu_register(unsigned long dev_id,
 		goto out;
 	}
 
-	/* Create EL2 mapping for the device. */
-	dev_va = (void *)__pkvm_create_private_mapping(dev_pa, dev_size,
-						       PAGE_HYP_DEVICE);
-	if (IS_ERR(dev_va)) {
-		ret = PTR_ERR(dev_va);
-		goto out;
-	}
-
 	/* Populate the new device entry. */
 	*dev = (struct pkvm_iommu){
 		.id = dev_id,
 		.ops = drv->ops,
 		.pa = dev_pa,
-		.va = dev_va,
 		.size = dev_size,
 	};
 
@@ -360,13 +351,22 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	}
 
 	/*
-	 * Unmap the device's MMIO range from host stage-2. Future attempts to
-	 * map will be blocked by pkvm_iommu_host_stage2_adjust_range.
+	 * Unmap the device's MMIO range from host stage-2. If registration
+	 * is successful, future attempts to re-map will be blocked by
+	 * pkvm_iommu_host_stage2_adjust_range.
 	 */
 	ret = host_stage2_unmap_dev_locked(dev_pa, dev_size);
 	if (ret)
 		goto out;
 
+	/* Create EL2 mapping for the device. Do it last as it is irreversible. */
+	dev->va = (void *)__pkvm_create_private_mapping(dev_pa, dev_size,
+							PAGE_HYP_DEVICE);
+	if (IS_ERR(dev->va)) {
+		ret = PTR_ERR(dev->va);
+		goto out;
+	}
+
 	/* Register device and prevent host from mapping the MMIO range. */
 	list_add_tail(&dev->list, &iommu_list);
 
-- 
GitLab


From be84f2c770810494ef178cdb73e22b05f2dfc2b6 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 15 Mar 2022 11:35:01 +0000
Subject: [PATCH 4646/4878] ANDROID: KVM: arm64: iommu: Run validate() on
 struct pkvm_iommu

In preparation for needing to validate more aspects of a device that is
about to be registered, change the callback to accept the to-be-added
'struct pkvm_iommu' rather than individual inputs.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I3fb911e4280c220ddd779cf6a5fc9c302a5617f7
---
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  7 ++++---
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 12 ++++++------
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c   |  4 ++--
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 2367fe153ad35..70d9c9e679915 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -20,10 +20,11 @@ struct pkvm_iommu_ops {
 	int (*init)(void *data, size_t size);
 
 	/*
-	 * Driver-specific validation of device registration inputs.
-	 * This should be stateless. No locks are held at entry.
+	 * Driver-specific validation of a device that is being registered.
+	 * All fields of the device struct have been populated.
+	 * Called with the host lock held.
 	 */
-	int (*validate)(phys_addr_t base, size_t size);
+	int (*validate)(struct pkvm_iommu *dev);
 
 	/*
 	 * Callback to apply a host stage-2 mapping change at driver level.
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index fcb842aae8924..8b84966c55cce 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -306,12 +306,6 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	if (!is_mmio_range(dev_pa, dev_size))
 		return -EINVAL;
 
-	if (drv->ops->validate) {
-		ret = drv->ops->validate(dev_pa, dev_size);
-		if (ret)
-			return ret;
-	}
-
 	/*
 	 * Accept memory donation if the host is providing new memory.
 	 * Note: We do not return the memory even if there is an error later.
@@ -350,6 +344,12 @@ int __pkvm_iommu_register(unsigned long dev_id,
 		goto out;
 	}
 
+	if (dev->ops->validate) {
+		ret = dev->ops->validate(dev);
+		if (ret)
+			goto out;
+	}
+
 	/*
 	 * Unmap the device's MMIO range from host stage-2. If registration
 	 * is successful, future attempts to re-map will be blocked by
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 3fbd68c842186..dd9c81f15898e 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -465,9 +465,9 @@ static int s2mpu_init(void *data, size_t size)
 	return ret;
 }
 
-static int s2mpu_validate(phys_addr_t pa, size_t size)
+static int s2mpu_validate(struct pkvm_iommu *dev)
 {
-	if (size != S2MPU_MMIO_SIZE)
+	if (dev->size != S2MPU_MMIO_SIZE)
 		return -EINVAL;
 
 	return 0;
-- 
GitLab


From e69c61cf4ebab19f5abdfedb66c48e96345dbdf4 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 15 Mar 2022 11:33:45 +0000
Subject: [PATCH 4647/4878] ANDROID: KVM: arm64: iommu: Create parent/child
 relation

In preparation for adding new IOMMU devices that act as suppliers to
others, add the notion of a parent IOMMU device. Such device must be
registered after its parent and the driver of the parent device must
validate the addition.

The relation has no generic implications, it is up to drivers to make
use of it.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I4ee3675e5529bb73ad4546fa32380f237f054177
---
 arch/arm64/include/asm/kvm_host.h       |  2 +-
 arch/arm64/kvm/hyp/include/nvhe/iommu.h | 10 ++++++++++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c      |  8 +++++---
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 18 ++++++++++++++++++
 arch/arm64/kvm/iommu.c                  |  7 ++++---
 arch/arm64/kvm/iommu/s2mpu.c            |  2 +-
 6 files changed, 39 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 1d914fbcddedb..e339a1785d432 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -386,7 +386,7 @@ enum pkvm_iommu_pm_event {
 
 int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id drv_id, void *data, size_t size);
 int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
-			phys_addr_t pa, size_t size);
+			phys_addr_t pa, size_t size, struct device *parent);
 int pkvm_iommu_suspend(struct device *dev);
 int pkvm_iommu_resume(struct device *dev);
 
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 70d9c9e679915..e9683d3149384 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -26,6 +26,12 @@ struct pkvm_iommu_ops {
 	 */
 	int (*validate)(struct pkvm_iommu *dev);
 
+	/*
+	 * Validation of a new child device that is being register by
+	 * the parent device the child selected. Called with the host lock held.
+	 */
+	int (*validate_child)(struct pkvm_iommu *dev, struct pkvm_iommu *child);
+
 	/*
 	 * Callback to apply a host stage-2 mapping change at driver level.
 	 * Called before 'host_stage2_idmap_apply' with host lock held.
@@ -57,7 +63,10 @@ struct pkvm_iommu_ops {
 };
 
 struct pkvm_iommu {
+	struct pkvm_iommu *parent;
 	struct list_head list;
+	struct list_head siblings;
+	struct list_head children;
 	unsigned long id;
 	const struct pkvm_iommu_ops *ops;
 	phys_addr_t pa;
@@ -71,6 +80,7 @@ int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t si
 int __pkvm_iommu_register(unsigned long dev_id,
 			  enum pkvm_iommu_driver_id drv_id,
 			  phys_addr_t dev_pa, size_t dev_size,
+			  unsigned long parent_id,
 			  void *kern_mem_va, size_t mem_size);
 int __pkvm_iommu_pm_notify(unsigned long dev_id,
 			   enum pkvm_iommu_pm_event event);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index fae3dd83bbdf4..30b3af4b1d253 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -991,11 +991,13 @@ static void handle___pkvm_iommu_register(struct kvm_cpu_context *host_ctxt)
 	DECLARE_REG(enum pkvm_iommu_driver_id, drv_id, host_ctxt, 2);
 	DECLARE_REG(phys_addr_t, dev_pa, host_ctxt, 3);
 	DECLARE_REG(size_t, dev_size, host_ctxt, 4);
-	DECLARE_REG(void *, mem, host_ctxt, 5);
-	DECLARE_REG(size_t, mem_size, host_ctxt, 6);
+	DECLARE_REG(unsigned long, parent_id, host_ctxt, 5);
+	DECLARE_REG(void *, mem, host_ctxt, 6);
+	DECLARE_REG(size_t, mem_size, host_ctxt, 7);
 
 	cpu_reg(host_ctxt, 1) = __pkvm_iommu_register(dev_id, drv_id, dev_pa,
-						      dev_size, mem, mem_size);
+						      dev_size, parent_id,
+						      mem, mem_size);
 }
 
 static void handle___pkvm_iommu_pm_notify(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 8b84966c55cce..4b77aba72b653 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -289,6 +289,7 @@ out:
 int __pkvm_iommu_register(unsigned long dev_id,
 			  enum pkvm_iommu_driver_id drv_id,
 			  phys_addr_t dev_pa, size_t dev_size,
+			  unsigned long parent_id,
 			  void *kern_mem_va, size_t mem_size)
 {
 	struct pkvm_iommu *dev = NULL;
@@ -333,6 +334,7 @@ int __pkvm_iommu_register(unsigned long dev_id,
 
 	/* Populate the new device entry. */
 	*dev = (struct pkvm_iommu){
+		.children = LIST_HEAD_INIT(dev->children),
 		.id = dev_id,
 		.ops = drv->ops,
 		.pa = dev_pa,
@@ -344,6 +346,20 @@ int __pkvm_iommu_register(unsigned long dev_id,
 		goto out;
 	}
 
+	if (parent_id) {
+		dev->parent = find_iommu_by_id(parent_id);
+		if (!dev->parent) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		if (dev->parent->ops->validate_child) {
+			ret = dev->parent->ops->validate_child(dev->parent, dev);
+			if (ret)
+				goto out;
+		}
+	}
+
 	if (dev->ops->validate) {
 		ret = dev->ops->validate(dev);
 		if (ret)
@@ -369,6 +385,8 @@ int __pkvm_iommu_register(unsigned long dev_id,
 
 	/* Register device and prevent host from mapping the MMIO range. */
 	list_add_tail(&dev->list, &iommu_list);
+	if (dev->parent)
+		list_add_tail(&dev->siblings, &dev->parent->children);
 
 out:
 	if (ret)
diff --git a/arch/arm64/kvm/iommu.c b/arch/arm64/kvm/iommu.c
index e13d36ec57e71..01176199e08fb 100644
--- a/arch/arm64/kvm/iommu.c
+++ b/arch/arm64/kvm/iommu.c
@@ -18,7 +18,7 @@ int pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t size
 }
 
 int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
-			phys_addr_t pa, size_t size)
+			phys_addr_t pa, size_t size, struct device *parent)
 {
 	void *mem;
 	int ret;
@@ -29,14 +29,15 @@ int pkvm_iommu_register(struct device *dev, enum pkvm_iommu_driver_id drv_id,
 	 * We assume that hyp never allocates more than a page per hypcall.
 	 */
 	ret = kvm_call_hyp_nvhe(__pkvm_iommu_register, dev_to_id(dev),
-				drv_id, pa, size, NULL, 0);
+				drv_id, pa, size, dev_to_id(parent), NULL, 0);
 	if (ret == -ENOMEM) {
 		mem = (void *)__get_free_page(GFP_KERNEL);
 		if (!mem)
 			return -ENOMEM;
 
 		ret = kvm_call_hyp_nvhe(__pkvm_iommu_register, dev_to_id(dev),
-					drv_id, pa, size, mem, PAGE_SIZE);
+					drv_id, pa, size, dev_to_id(parent),
+					mem, PAGE_SIZE);
 	}
 	return ret;
 }
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index be2b1ad094808..7d989afde0fb0 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -81,6 +81,6 @@ int pkvm_iommu_s2mpu_register(struct device *dev, phys_addr_t addr)
 		return ret;
 
 	return pkvm_iommu_register(dev, PKVM_IOMMU_DRIVER_S2MPU,
-				   addr, S2MPU_MMIO_SIZE);
+				   addr, S2MPU_MMIO_SIZE, NULL);
 }
 EXPORT_SYMBOL_GPL(pkvm_iommu_s2mpu_register);
-- 
GitLab


From 57381d548d9de5382047ac9602da5487a2f78383 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 15 Mar 2022 11:39:02 +0000
Subject: [PATCH 4648/4878] ANDROID: KVM: arm64: s2mpu: Create SysMMU_SYNC
 driver

SysMMU_SYNC devices expose an interface to start a sync counter and
poll its SFR until the device signals that all memory transactions in
flight at the start have drained. This gives the hypervisor a reliable
indicator that S2MPU invalidation has fully completed and all new
transactions will use the new MPTs.

Add a new pKVM IOMMU driver that the host can use to register
SysMMU_SYNCs. Each device is expected to be a supplier to exactly one
S2MPU (parent), but multiple SYNCs can supply a single S2MPU.

To keep things simple, the SYNCs do not implement suspend/resume and are
assumed to follow the power transitions of their parent.

Following an invalidation, the S2MPU driver iterates over its children
and waits for each SYNC to signal that its transactions have drained.
The algorithm currently waits on each SYNC in turn. If latency proves to
be an issue, this could be optimized to initiate a SYNC on all powered
devices before starting to poll.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I45b832fd11d76b65987935c8548e2a214ee2fa2a
---
 arch/arm64/include/asm/kvm_host.h       |  3 ++
 arch/arm64/include/asm/kvm_s2mpu.h      | 11 ++++++
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  1 +
 arch/arm64/kvm/hyp/nvhe/iommu.c         |  2 ++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c   | 45 +++++++++++++++++++++++++
 arch/arm64/kvm/iommu/s2mpu.c            | 34 +++++++++++++++++++
 6 files changed, 96 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index e339a1785d432..49d404b2cecc6 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -376,6 +376,7 @@ extern u64 kvm_nvhe_sym(hyp_cpu_logical_map)[NR_CPUS];
 
 enum pkvm_iommu_driver_id {
 	PKVM_IOMMU_DRIVER_S2MPU,
+	PKVM_IOMMU_DRIVER_SYSMMU_SYNC,
 	PKVM_IOMMU_NR_DRIVERS,
 };
 
@@ -391,6 +392,8 @@ int pkvm_iommu_suspend(struct device *dev);
 int pkvm_iommu_resume(struct device *dev);
 
 int pkvm_iommu_s2mpu_register(struct device *dev, phys_addr_t pa);
+int pkvm_iommu_sysmmu_sync_register(struct device *dev, phys_addr_t pa,
+				    struct device *parent);
 
 struct vcpu_reset_state {
 	unsigned long	pc;
diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 4d517bc1d0ebf..0804ece03cfd6 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -12,6 +12,10 @@
 #include <asm/kvm_mmu.h>
 
 #define S2MPU_MMIO_SIZE				SZ_64K
+#define SYSMMU_SYNC_MMIO_SIZE			SZ_64K
+#define SYSMMU_SYNC_S2_OFFSET			SZ_32K
+#define SYSMMU_SYNC_S2_MMIO_SIZE		(SYSMMU_SYNC_MMIO_SIZE - \
+						 SYSMMU_SYNC_S2_OFFSET)
 
 #define NR_VIDS					8
 #define NR_CTX_IDS				8
@@ -128,6 +132,13 @@ static_assert(SMPT_GRAN <= PAGE_SIZE);
 #define SMPT_NUM_PAGES				(SMPT_SIZE / PAGE_SIZE)
 #define SMPT_ORDER				get_order(SMPT_SIZE)
 
+/* SysMMU_SYNC registers, relative to SYSMMU_SYNC_S2_OFFSET. */
+#define REG_NS_SYNC_CMD				0x0
+#define REG_NS_SYNC_COMP			0x4
+
+#define SYNC_CMD_SYNC				BIT(0)
+#define SYNC_COMP_COMPLETE			BIT(0)
+
 /*
  * Iterate over S2MPU gigabyte regions. Skip those that cannot be modified
  * (the MMIO registers are read only, with reset value MPT_PROT_NONE).
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index e9683d3149384..07fe3db958c30 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -92,5 +92,6 @@ void pkvm_iommu_host_stage2_idmap(phys_addr_t start, phys_addr_t end,
 				  enum kvm_pgtable_prot prot);
 
 extern const struct pkvm_iommu_ops pkvm_s2mpu_ops;
+extern const struct pkvm_iommu_ops pkvm_sysmmu_sync_ops;
 
 #endif	/* __ARM64_KVM_NVHE_IOMMU_H__ */
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 4b77aba72b653..9ad3e8079e030 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -68,6 +68,8 @@ static const struct pkvm_iommu_ops *get_driver_ops(enum pkvm_iommu_driver_id id)
 	switch (id) {
 	case PKVM_IOMMU_DRIVER_S2MPU:
 		return IS_ENABLED(CONFIG_KVM_S2MPU) ? &pkvm_s2mpu_ops : NULL;
+	case PKVM_IOMMU_DRIVER_SYSMMU_SYNC:
+		return IS_ENABLED(CONFIG_KVM_S2MPU) ? &pkvm_sysmmu_sync_ops : NULL;
 	default:
 		return NULL;
 	}
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index dd9c81f15898e..01cd8a97fa159 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -28,6 +28,9 @@
 	(CONTEXT_CFG_VALID_VID_CTX_VID(ctxid, vid) \
 	 | (((ctxid) < (nr_ctx)) ? CONTEXT_CFG_VALID_VID_CTX_VALID(ctxid) : 0))
 
+#define for_each_child(child, dev) \
+	list_for_each_entry((child), &(dev)->children, siblings)
+
 struct s2mpu_drv_data {
 	u32 version;
 	u32 context_cfg_valid_vid;
@@ -155,6 +158,13 @@ static void __set_control_regs(struct pkvm_iommu *dev)
 	writel_relaxed(ctrl0, dev->va + REG_NS_CTRL0);
 }
 
+/* Poll the given SFR until its value has all bits of a given mask set. */
+static void __wait_until(void __iomem *addr, u32 mask)
+{
+	while ((readl_relaxed(addr) & mask) != mask)
+		continue;
+}
+
 /* Poll the given SFR as long as its value has all bits of a given mask set. */
 static void __wait_while(void __iomem *addr, u32 mask)
 {
@@ -164,6 +174,17 @@ static void __wait_while(void __iomem *addr, u32 mask)
 
 static void __wait_for_invalidation_complete(struct pkvm_iommu *dev)
 {
+	struct pkvm_iommu *sync;
+
+	/*
+	 * Wait for transactions to drain if SysMMU_SYNCs were registered.
+	 * Assumes that they are in the same power domain as the S2MPU.
+	 */
+	for_each_child(sync, dev) {
+		writel_relaxed(SYNC_CMD_SYNC, sync->va + REG_NS_SYNC_CMD);
+		__wait_until(sync->va + REG_NS_SYNC_COMP, SYNC_COMP_COMPLETE);
+	}
+
 	/* Must not access SFRs while S2MPU is busy invalidating (v9 only). */
 	if (is_version(dev, S2MPU_VERSION_9)) {
 		__wait_while(dev->va + REG_NS_STATUS,
@@ -473,9 +494,29 @@ static int s2mpu_validate(struct pkvm_iommu *dev)
 	return 0;
 }
 
+static int s2mpu_validate_child(struct pkvm_iommu *dev, struct pkvm_iommu *child)
+{
+	if (child->ops != &pkvm_sysmmu_sync_ops)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int sysmmu_sync_validate(struct pkvm_iommu *dev)
+{
+	if (dev->size != SYSMMU_SYNC_S2_MMIO_SIZE)
+		return -EINVAL;
+
+	if (!dev->parent || dev->parent->ops != &pkvm_s2mpu_ops)
+		return -EINVAL;
+
+	return 0;
+}
+
 const struct pkvm_iommu_ops pkvm_s2mpu_ops = (struct pkvm_iommu_ops){
 	.init = s2mpu_init,
 	.validate = s2mpu_validate,
+	.validate_child = s2mpu_validate_child,
 	.resume = s2mpu_resume,
 	.suspend = s2mpu_suspend,
 	.host_stage2_idmap_prepare = s2mpu_host_stage2_idmap_prepare,
@@ -483,3 +524,7 @@ const struct pkvm_iommu_ops pkvm_s2mpu_ops = (struct pkvm_iommu_ops){
 	.host_dabt_handler = s2mpu_host_dabt_handler,
 	.data_size = sizeof(struct s2mpu_drv_data),
 };
+
+const struct pkvm_iommu_ops pkvm_sysmmu_sync_ops = (struct pkvm_iommu_ops){
+	.validate = sysmmu_sync_validate,
+};
diff --git a/arch/arm64/kvm/iommu/s2mpu.c b/arch/arm64/kvm/iommu/s2mpu.c
index 7d989afde0fb0..733451d741007 100644
--- a/arch/arm64/kvm/iommu/s2mpu.c
+++ b/arch/arm64/kvm/iommu/s2mpu.c
@@ -84,3 +84,37 @@ int pkvm_iommu_s2mpu_register(struct device *dev, phys_addr_t addr)
 				   addr, S2MPU_MMIO_SIZE, NULL);
 }
 EXPORT_SYMBOL_GPL(pkvm_iommu_s2mpu_register);
+
+static int init_sysmmu_sync_driver(void)
+{
+	static DEFINE_MUTEX(lock);
+	static bool init_done;
+
+	int ret = 0;
+
+	mutex_lock(&lock);
+	if (!init_done) {
+		ret = pkvm_iommu_driver_init(PKVM_IOMMU_DRIVER_SYSMMU_SYNC, NULL, 0);
+		init_done = !ret;
+	}
+	mutex_unlock(&lock);
+	return ret;
+}
+
+int pkvm_iommu_sysmmu_sync_register(struct device *dev, phys_addr_t addr,
+				    struct device *parent)
+{
+	int ret;
+
+	if (!is_protected_kvm_enabled())
+		return -ENODEV;
+
+	ret = init_sysmmu_sync_driver();
+	if (ret)
+		return ret;
+
+	return pkvm_iommu_register(dev, PKVM_IOMMU_DRIVER_SYSMMU_SYNC,
+				   addr + SYSMMU_SYNC_S2_OFFSET,
+				   SYSMMU_SYNC_S2_MMIO_SIZE, parent);
+}
+EXPORT_SYMBOL_GPL(pkvm_iommu_sysmmu_sync_register);
-- 
GitLab


From 798c4ea545e98e04797424c98c4329e6a34db60e Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 29 Mar 2022 16:56:10 +0100
Subject: [PATCH 4649/4878] ANDROID: KVM: arm64: iommu: No powered check in
 DABT handler

The IOMMU DABT handler currently checks if the device is considered
powered by hyp before resolving the request. If the power tracking does
not reflect reality, the IOMMU may trigger issues in the host but the
incorrect state prevents it from diagnosing the issue.

Drop the powered check from the generic IOMMU code. The host accessing
the device's SFR means that it assumes it is powered, and individual
drivers can choose to reject that DABT request.

Bug: 224891559
Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I1c132c4030a61a90be4675867c9658e3bc696118
---
 arch/arm64/kvm/hyp/nvhe/iommu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 9ad3e8079e030..3c0d2327a8398 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -467,7 +467,8 @@ bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
 		if (pa < dev->pa || pa >= dev->pa + dev->size)
 			continue;
 
-		if (!dev->powered || !dev->ops->host_dabt_handler ||
+		/* No 'powered' check - the host assumes it is powered. */
+		if (!dev->ops->host_dabt_handler ||
 		    !dev->ops->host_dabt_handler(dev, host_ctxt, esr, pa - dev->pa))
 			return false;
 
-- 
GitLab


From 8fd93b0ef92202f16008d97ebcb92de367751491 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 28 Mar 2022 11:02:34 +0100
Subject: [PATCH 4650/4878] ANDROID: KVM: arm64: iommu: Add pkvm_iommu_finalize

Add new hypercall that the host can use to inform the hypervisor that
all hypervisor-controlled IOMMUs have been registered and no new
registrations should be allowed. This will typically be called at the
end of kernel module initialization phase.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I8c175310d5b262a67947443c5a0154056a8ebf3e
---
 arch/arm64/include/asm/kvm_asm.h        |  1 +
 arch/arm64/include/asm/kvm_host.h       |  2 +
 arch/arm64/kvm/hyp/include/nvhe/iommu.h |  1 +
 arch/arm64/kvm/hyp/nvhe/hyp-main.c      |  6 ++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 94 +++++++++++++++++++------
 arch/arm64/kvm/iommu.c                  |  6 ++
 6 files changed, 87 insertions(+), 23 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 8ce6444d861ae..630646297d78c 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -82,6 +82,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_driver_init,
 	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_register,
 	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_pm_notify,
+	__KVM_HOST_SMCCC_FUNC___pkvm_iommu_finalize,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 49d404b2cecc6..f73ed0c867be0 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -394,6 +394,8 @@ int pkvm_iommu_resume(struct device *dev);
 int pkvm_iommu_s2mpu_register(struct device *dev, phys_addr_t pa);
 int pkvm_iommu_sysmmu_sync_register(struct device *dev, phys_addr_t pa,
 				    struct device *parent);
+/* Reject future calls to pkvm_iommu_driver_init() and pkvm_iommu_register(). */
+int pkvm_iommu_finalize(void);
 
 struct vcpu_reset_state {
 	unsigned long	pc;
diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index 07fe3db958c30..d794f705fb1a3 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -84,6 +84,7 @@ int __pkvm_iommu_register(unsigned long dev_id,
 			  void *kern_mem_va, size_t mem_size);
 int __pkvm_iommu_pm_notify(unsigned long dev_id,
 			   enum pkvm_iommu_pm_event event);
+int __pkvm_iommu_finalize(void);
 int pkvm_iommu_host_stage2_adjust_range(phys_addr_t addr, phys_addr_t *start,
 					phys_addr_t *end);
 bool pkvm_iommu_host_dabt_handler(struct kvm_cpu_context *host_ctxt, u32 esr,
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 30b3af4b1d253..bd84430e9fb3d 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -1008,6 +1008,11 @@ static void handle___pkvm_iommu_pm_notify(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_iommu_pm_notify(dev_id, event);
 }
 
+static void handle___pkvm_iommu_finalize(struct kvm_cpu_context *host_ctxt)
+{
+	cpu_reg(host_ctxt, 1) = __pkvm_iommu_finalize();
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -1044,6 +1049,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_iommu_driver_init),
 	HANDLE_FUNC(__pkvm_iommu_register),
 	HANDLE_FUNC(__pkvm_iommu_pm_notify),
+	HANDLE_FUNC(__pkvm_iommu_finalize),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 3c0d2327a8398..0f30563b3d106 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -31,6 +31,9 @@ static struct pkvm_iommu_driver iommu_drivers[PKVM_IOMMU_NR_DRIVERS];
 /* IOMMU device list. Must only be accessed with host_kvm.lock held. */
 static LIST_HEAD(iommu_list);
 
+static bool iommu_finalized;
+static DEFINE_HYP_SPINLOCK(iommu_registration_lock);
+
 static void *iommu_mem_pool;
 static size_t iommu_mem_remaining;
 
@@ -251,13 +254,24 @@ int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t si
 
 	data = kern_hyp_va(data);
 
+	/* New driver initialization not allowed after __pkvm_iommu_finalize(). */
+	hyp_spin_lock(&iommu_registration_lock);
+	if (iommu_finalized) {
+		ret = -EPERM;
+		goto out_unlock;
+	}
+
 	drv = get_driver(id);
 	ops = get_driver_ops(id);
-	if (!drv || !ops)
-		return -EINVAL;
+	if (!drv || !ops) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
 
-	if (!driver_acquire_init(drv))
-		return -EBUSY;
+	if (!driver_acquire_init(drv)) {
+		ret = -EBUSY;
+		goto out_unlock;
+	}
 
 	drv->ops = ops;
 
@@ -269,7 +283,7 @@ int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t si
 			hyp_unpin_shared_mem(data, data + size);
 		}
 		if (ret)
-			goto out;
+			goto out_release;
 	}
 
 	/*
@@ -282,9 +296,12 @@ int __pkvm_iommu_driver_init(enum pkvm_iommu_driver_id id, void *data, size_t si
 		driver_release_init(drv, /*success=*/true);
 	host_unlock_component();
 
-out:
+out_release:
 	if (ret)
 		driver_release_init(drv, /*success=*/false);
+
+out_unlock:
+	hyp_spin_unlock(&iommu_registration_lock);
 	return ret;
 }
 
@@ -299,15 +316,28 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	void *mem_va = NULL;
 	int ret = 0;
 
+	/* New device registration not allowed after __pkvm_iommu_finalize(). */
+	hyp_spin_lock(&iommu_registration_lock);
+	if (iommu_finalized) {
+		ret = -EPERM;
+		goto out_unlock;
+	}
+
 	drv = get_driver(drv_id);
-	if (!drv || !is_driver_ready(drv))
-		return -ENOENT;
+	if (!drv || !is_driver_ready(drv)) {
+		ret = -ENOENT;
+		goto out_unlock;
+	}
 
-	if (!PAGE_ALIGNED(dev_pa) || !PAGE_ALIGNED(dev_size))
-		return -EINVAL;
+	if (!PAGE_ALIGNED(dev_pa) || !PAGE_ALIGNED(dev_size)) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
 
-	if (!is_mmio_range(dev_pa, dev_size))
-		return -EINVAL;
+	if (!is_mmio_range(dev_pa, dev_size)) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
 
 	/*
 	 * Accept memory donation if the host is providing new memory.
@@ -316,13 +346,15 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	if (kern_mem_va && mem_size) {
 		mem_va = kern_hyp_va(kern_mem_va);
 
-		if (!PAGE_ALIGNED(mem_va) || !PAGE_ALIGNED(mem_size))
-			return -EINVAL;
+		if (!PAGE_ALIGNED(mem_va) || !PAGE_ALIGNED(mem_size)) {
+			ret = -EINVAL;
+			goto out_unlock;
+		}
 
 		ret = __pkvm_host_donate_hyp(hyp_virt_to_pfn(mem_va),
 					     mem_size >> PAGE_SHIFT);
 		if (ret)
-			return ret;
+			goto out_unlock;
 	}
 
 	host_lock_component();
@@ -331,7 +363,7 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	dev = alloc_iommu(drv, mem_va, mem_size);
 	if (!dev) {
 		ret = -ENOMEM;
-		goto out;
+		goto out_free;
 	}
 
 	/* Populate the new device entry. */
@@ -345,27 +377,27 @@ int __pkvm_iommu_register(unsigned long dev_id,
 
 	if (!validate_against_existing_iommus(dev)) {
 		ret = -EBUSY;
-		goto out;
+		goto out_free;
 	}
 
 	if (parent_id) {
 		dev->parent = find_iommu_by_id(parent_id);
 		if (!dev->parent) {
 			ret = -EINVAL;
-			goto out;
+			goto out_free;
 		}
 
 		if (dev->parent->ops->validate_child) {
 			ret = dev->parent->ops->validate_child(dev->parent, dev);
 			if (ret)
-				goto out;
+				goto out_free;
 		}
 	}
 
 	if (dev->ops->validate) {
 		ret = dev->ops->validate(dev);
 		if (ret)
-			goto out;
+			goto out_free;
 	}
 
 	/*
@@ -375,14 +407,14 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	 */
 	ret = host_stage2_unmap_dev_locked(dev_pa, dev_size);
 	if (ret)
-		goto out;
+		goto out_free;
 
 	/* Create EL2 mapping for the device. Do it last as it is irreversible. */
 	dev->va = (void *)__pkvm_create_private_mapping(dev_pa, dev_size,
 							PAGE_HYP_DEVICE);
 	if (IS_ERR(dev->va)) {
 		ret = PTR_ERR(dev->va);
-		goto out;
+		goto out_free;
 	}
 
 	/* Register device and prevent host from mapping the MMIO range. */
@@ -390,10 +422,26 @@ int __pkvm_iommu_register(unsigned long dev_id,
 	if (dev->parent)
 		list_add_tail(&dev->siblings, &dev->parent->children);
 
-out:
+out_free:
 	if (ret)
 		free_iommu(drv, dev);
 	host_unlock_component();
+
+out_unlock:
+	hyp_spin_unlock(&iommu_registration_lock);
+	return ret;
+}
+
+int __pkvm_iommu_finalize(void)
+{
+	int ret = 0;
+
+	hyp_spin_lock(&iommu_registration_lock);
+	if (!iommu_finalized)
+		iommu_finalized = true;
+	else
+		ret = -EPERM;
+	hyp_spin_unlock(&iommu_registration_lock);
 	return ret;
 }
 
diff --git a/arch/arm64/kvm/iommu.c b/arch/arm64/kvm/iommu.c
index 01176199e08fb..6ca171327b289 100644
--- a/arch/arm64/kvm/iommu.c
+++ b/arch/arm64/kvm/iommu.c
@@ -55,3 +55,9 @@ int pkvm_iommu_resume(struct device *dev)
 				 PKVM_IOMMU_PM_RESUME);
 }
 EXPORT_SYMBOL_GPL(pkvm_iommu_resume);
+
+int pkvm_iommu_finalize(void)
+{
+	return kvm_call_hyp_nvhe(__pkvm_iommu_finalize);
+}
+EXPORT_SYMBOL_GPL(pkvm_iommu_finalize);
-- 
GitLab


From 9859d2761ea88afe5e44a81cd04e127a64696b79 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Tue, 15 Mar 2022 17:19:02 +0000
Subject: [PATCH 4651/4878] ANDROID: Add new pkvm_iommu_* functions to aarch64
 ABI

Add two new symbols to aarch64 kernel ABI:
  * pkvm_iommu_sysmmu_sync_register
  * pkvm_iommu_finalize

The former allows vendor modules to register a SYSMMU_SYNC device with
the hypervisor, and the latter tells the hypervisor to stop acception
new device registrations.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I6c6948d94cb6494f07d52b4e2b7e91db40e2fcd6
---
 android/abi_gki_aarch64_generic | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index be6f0884e59ee..0db1fe038bc69 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1532,9 +1532,11 @@
   pin_user_pages_fast
   pin_user_pages_remote
   pktgen_xfrm_outer_mode_output
+  pkvm_iommu_finalize
   pkvm_iommu_resume
   pkvm_iommu_s2mpu_register
   pkvm_iommu_suspend
+  pkvm_iommu_sysmmu_sync_register
   platform_bus_type
   platform_device_add
   platform_device_add_data
-- 
GitLab


From cd5c13796ba1e6ee772cbe033782641123fd8389 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Mon, 28 Mar 2022 13:02:04 +0100
Subject: [PATCH 4652/4878] ANDROID: Update the ABI symbol list

Leaf changes summary: 2 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 2 Added
functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added
variable

2 Added functions:

  [A] 'function int pkvm_iommu_finalize()'
  [A] 'function int pkvm_iommu_sysmmu_sync_register(device*, phys_addr_t, device*)'

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ibc7bf50b9b68c0334ea786b603f40c04b8ccea5b
---
 android/abi_gki_aarch64.xml | 40 +++++++++++++++----------------------
 1 file changed, 16 insertions(+), 24 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 0bde293cf1c15..149b2a5e43ae0 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -2494,9 +2494,11 @@
       <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1cf7fcf'/>
       <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf4d722d'/>
       <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d58254f'/>
+      <elf-symbol name='pkvm_iommu_finalize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23d83c25'/>
       <elf-symbol name='pkvm_iommu_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff696ab2'/>
       <elf-symbol name='pkvm_iommu_s2mpu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d486258'/>
       <elf-symbol name='pkvm_iommu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2554db42'/>
+      <elf-symbol name='pkvm_iommu_sysmmu_sync_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76fa4991'/>
       <elf-symbol name='platform_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1f2d2e8'/>
       <elf-symbol name='platform_device_add_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb05eda59'/>
       <elf-symbol name='platform_device_add_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5988706b'/>
@@ -74766,9 +74768,6 @@
         <parameter type-id='cd1b45ab'/>
         <return type-id='3f1a6b60'/>
       </function-type>
-      <array-type-def dimensions='1' type-id='e151255a' size-in-bits='131072' id='b9cedcb8'>
-        <subrange length='2048' type-id='7ff19f0f' id='e5323efb'/>
-      </array-type-def>
       <function-type size-in-bits='64' id='b9d8dce4'>
         <parameter type-id='807b7702'/>
         <parameter type-id='95e97e5e'/>
@@ -82568,9 +82567,6 @@
       <pointer-type-def type-id='c9196d18' size-in-bits='64' id='cba10b6e'/>
       <pointer-type-def type-id='4b7a84f4' size-in-bits='64' id='cba114b6'/>
       <pointer-type-def type-id='284260b8' size-in-bits='64' id='cba1f2de'/>
-      <array-type-def dimensions='1' type-id='e151255a' size-in-bits='65536' id='cba3052b'>
-        <subrange length='1024' type-id='7ff19f0f' id='c60446f8'/>
-      </array-type-def>
       <function-type size-in-bits='64' id='cba59087'>
         <parameter type-id='eaa32e2f'/>
         <parameter type-id='91ce1af9'/>
@@ -96465,20 +96461,7 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='84a0e7ab' size-in-bits='64' id='e812884b'/>
-      <class-decl name='can_dev_rcv_lists' size-in-bits='196928' is-struct='yes' visibility='default' filepath='include/linux/can/can-ml.h' line='55' column='1' id='e82476af'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='rx' type-id='fc3a8480' visibility='default' filepath='include/linux/can/can-ml.h' line='56' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='rx_sff' type-id='b9cedcb8' visibility='default' filepath='include/linux/can/can-ml.h' line='57' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='131328'>
-          <var-decl name='rx_eff' type-id='cba3052b' visibility='default' filepath='include/linux/can/can-ml.h' line='58' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='196864'>
-          <var-decl name='entries' type-id='95e97e5e' visibility='default' filepath='include/linux/can/can-ml.h' line='59' column='1'/>
-        </data-member>
-      </class-decl>
+      <class-decl name='can_dev_rcv_lists' is-struct='yes' visibility='default' is-declaration-only='yes' id='e82476af'/>
       <class-decl name='ieee80211_scan_request' size-in-bits='2048' is-struct='yes' visibility='default' filepath='include/net/mac80211.h' line='2645' column='1' id='e827ee6f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ies' type-id='80d7b69d' visibility='default' filepath='include/net/mac80211.h' line='2646' column='1'/>
@@ -118877,8 +118860,11 @@
         <parameter type-id='0fbf3cfd' name='skb' filepath='net/xfrm/xfrm_output.c' line='405' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pkvm_iommu_resume' mangled-name='pkvm_iommu_resume' filepath='arch/arm64/kvm/iommu.c' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_resume'>
-        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu.c' line='51' column='1'/>
+      <function-decl name='pkvm_iommu_finalize' mangled-name='pkvm_iommu_finalize' filepath='arch/arm64/kvm/iommu.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_finalize'>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pkvm_iommu_resume' mangled-name='pkvm_iommu_resume' filepath='arch/arm64/kvm/iommu.c' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu.c' line='52' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pkvm_iommu_s2mpu_register' mangled-name='pkvm_iommu_s2mpu_register' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='72' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_s2mpu_register'>
@@ -118886,8 +118872,14 @@
         <parameter type-id='2522883d' name='addr' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='72' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pkvm_iommu_suspend' mangled-name='pkvm_iommu_suspend' filepath='arch/arm64/kvm/iommu.c' line='44' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_suspend'>
-        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu.c' line='44' column='1'/>
+      <function-decl name='pkvm_iommu_suspend' mangled-name='pkvm_iommu_suspend' filepath='arch/arm64/kvm/iommu.c' line='45' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu.c' line='45' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pkvm_iommu_sysmmu_sync_register' mangled-name='pkvm_iommu_sysmmu_sync_register' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='104' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pkvm_iommu_sysmmu_sync_register'>
+        <parameter type-id='fa0b179b' name='dev' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='104' column='1'/>
+        <parameter type-id='2522883d' name='addr' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='104' column='1'/>
+        <parameter type-id='fa0b179b' name='parent' filepath='arch/arm64/kvm/iommu/s2mpu.c' line='105' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='platform_bus' type-id='66e487eb' mangled-name='platform_bus' visibility='default' filepath='drivers/base/platform.c' line='38' column='1' elf-symbol-id='platform_bus'/>
-- 
GitLab


From 3f9db3f71181771c96abb39924b4cb9f423c9894 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Tue, 22 Mar 2022 22:22:09 +0800
Subject: [PATCH 4653/4878] ANDROID: sched: Add vendor hook for rt util update

Vendor may have need to track rt util.

Bug: 201261299
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I2f4e5142c6bc8574ee3558042e1fb0dae13b702d
---
 drivers/android/vendor_hooks.c | 1 +
 include/trace/hooks/sched.h    | 4 ++++
 kernel/sched/rt.c              | 3 +++
 3 files changed, 8 insertions(+)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 0bd6030fbb622..c60e6ff02a4f0 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -393,3 +393,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_detach_entity_load_avg);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_load_avg);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_remove_entity_load_avg);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_blocked_fair);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_rt_rq_load_avg);
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index 445484f1356c6..f459ec72d368b 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -425,6 +425,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_update_blocked_fair,
 	TP_PROTO(struct rq *rq),
 	TP_ARGS(rq), 1);
 
+DECLARE_RESTRICTED_HOOK(android_rvh_update_rt_rq_load_avg,
+	TP_PROTO(u64 now, struct rq *rq, struct task_struct *tsk, int running),
+	TP_ARGS(now, rq, tsk, running), 1);
+
 /* macro versions of hooks are no longer required */
 
 #endif /* _TRACE_HOOK_SCHED_H */
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index d7e73977b0aed..3e1866534db52 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1685,6 +1685,7 @@ static inline void set_next_task_rt(struct rq *rq, struct task_struct *p, bool f
 	 */
 	if (rq->curr->sched_class != &rt_sched_class)
 		update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 0);
+	trace_android_rvh_update_rt_rq_load_avg(rq_clock_pelt(rq), rq, p, 0);
 
 	rt_queue_push_tasks(rq);
 }
@@ -1737,6 +1738,7 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
 	update_curr_rt(rq);
 
 	update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 1);
+	trace_android_rvh_update_rt_rq_load_avg(rq_clock_pelt(rq), rq, p, 1);
 
 	/*
 	 * The previous task needs to be made eligible for pushing
@@ -2500,6 +2502,7 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
 
 	update_curr_rt(rq);
 	update_rt_rq_load_avg(rq_clock_pelt(rq), rq, 1);
+	trace_android_rvh_update_rt_rq_load_avg(rq_clock_pelt(rq), rq, p, 1);
 
 	watchdog(rq, p);
 
-- 
GitLab


From dc123bee9489b10933d5e512048ea66eeb1d2a73 Mon Sep 17 00:00:00 2001
From: Lee Jones <joneslee@google.com>
Date: Thu, 31 Mar 2022 08:36:36 +0000
Subject: [PATCH 4654/4878] Revert "ANDROID: dm-bow: Protect Ranges fetched and
 erased from the RB tree"

This reverts commit 3dcc5d0b9d0cfd6f96d5d63bc9b560ab9d5e3fe2.

Reason for revert: Needs rework - causes unforeseen deadlock.

Bug: 227141277
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: Id23e99dfca3449017e6095e169a383241cc413ff
---
 drivers/md/dm-bow.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/md/dm-bow.c b/drivers/md/dm-bow.c
index e666ca01d2200..cfd1fa63ff971 100644
--- a/drivers/md/dm-bow.c
+++ b/drivers/md/dm-bow.c
@@ -236,7 +236,6 @@ static void set_type(struct bow_context *bc, struct bow_range **br, int type)
 
 	(*br)->type = type;
 
-	mutex_lock(&bc->ranges_lock);
 	if (next->type == type) {
 		if (type == TRIMMED)
 			list_del(&next->trimmed_list);
@@ -250,7 +249,6 @@ static void set_type(struct bow_context *bc, struct bow_range **br, int type)
 		rb_erase(&(*br)->node, &bc->ranges);
 		kfree(*br);
 	}
-	mutex_unlock(&bc->ranges_lock);
 
 	*br = NULL;
 }
@@ -601,7 +599,6 @@ static void dm_bow_dtr(struct dm_target *ti)
 	struct bow_context *bc = (struct bow_context *) ti->private;
 	struct kobject *kobj;
 
-	mutex_lock(&bc->ranges_lock);
 	while (rb_first(&bc->ranges)) {
 		struct bow_range *br = container_of(rb_first(&bc->ranges),
 						    struct bow_range, node);
@@ -609,8 +606,6 @@ static void dm_bow_dtr(struct dm_target *ti)
 		rb_erase(&br->node, &bc->ranges);
 		kfree(br);
 	}
-	mutex_unlock(&bc->ranges_lock);
-
 	if (bc->workqueue)
 		destroy_workqueue(bc->workqueue);
 	if (bc->bufio)
@@ -1186,7 +1181,6 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 		return;
 	}
 
-	mutex_lock(&bc->ranges_lock);
 	for (i = rb_first(&bc->ranges); i; i = rb_next(i)) {
 		struct bow_range *br = container_of(i, struct bow_range, node);
 
@@ -1194,11 +1188,11 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 				    readable_type[br->type],
 				    (unsigned long long)br->sector);
 		if (result >= end)
-			goto unlock;
+			return;
 
 		result += scnprintf(result, end - result, "\n");
 		if (result >= end)
-			goto unlock;
+			return;
 
 		if (br->type == TRIMMED)
 			++trimmed_range_count;
@@ -1220,22 +1214,19 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 		if (!rb_next(i)) {
 			scnprintf(result, end - result,
 				  "\nERROR: Last range not of type TOP");
-			goto unlock;
+			return;
 		}
 
 		if (br->sector > range_top(br)) {
 			scnprintf(result, end - result,
 				  "\nERROR: sectors out of order");
-			goto unlock;
+			return;
 		}
 	}
 
 	if (trimmed_range_count != trimmed_list_length)
 		scnprintf(result, end - result,
 			  "\nERROR: not all trimmed ranges in trimmed list");
-
-unlock:
-	mutex_unlock(&bc->ranges_lock);
 }
 
 static void dm_bow_status(struct dm_target *ti, status_type_t type,
-- 
GitLab


From 4c3d004aa7602cf2c7c20f9ccb14b36a33de2c66 Mon Sep 17 00:00:00 2001
From: Huang Jianan <huangjianan@oppo.com>
Date: Wed, 1 Dec 2021 22:54:36 +0800
Subject: [PATCH 4655/4878] UPSTREAM: erofs: add sysfs interface

Add sysfs interface to configure erofs related parameters later.

Link: https://lore.kernel.org/r/20211201145436.4357-1-huangjianan@oppo.com
Reviewed-by: Chao Yu <chao@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: David Anderson <dvander@google.com>
Change-Id: I1c6a5af906cdac3e49bd7fc94d3ca58d5f80c4a4
(cherry picked from commit 168e9a76200c54c584a23aa88c62c53c4b0edd66)
---
 Documentation/ABI/testing/sysfs-fs-erofs |   7 +
 Documentation/filesystems/erofs.rst      |   8 +
 fs/erofs/Makefile                        |   2 +-
 fs/erofs/internal.h                      |  12 ++
 fs/erofs/super.c                         |  12 ++
 fs/erofs/sysfs.c                         | 239 +++++++++++++++++++++++
 6 files changed, 279 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/ABI/testing/sysfs-fs-erofs
 create mode 100644 fs/erofs/sysfs.c

diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs
new file mode 100644
index 0000000000000..a9512594dc4ca
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-fs-erofs
@@ -0,0 +1,7 @@
+What:		/sys/fs/erofs/features/
+Date:		November 2021
+Contact:	"Huang Jianan" <huangjianan@oppo.com>
+Description:	Shows all enabled kernel features.
+		Supported features:
+		zero_padding, compr_cfgs, big_pcluster, chunked_file,
+		device_table, compr_head2, sb_chksum.
diff --git a/Documentation/filesystems/erofs.rst b/Documentation/filesystems/erofs.rst
index 01df283c7d04f..7119aa213be71 100644
--- a/Documentation/filesystems/erofs.rst
+++ b/Documentation/filesystems/erofs.rst
@@ -93,6 +93,14 @@ dax                    A legacy option which is an alias for ``dax=always``.
 device=%s              Specify a path to an extra device to be used together.
 ===================    =========================================================
 
+Sysfs Entries
+=============
+
+Information about mounted erofs file systems can be found in /sys/fs/erofs.
+Each mounted filesystem will have a directory in /sys/fs/erofs based on its
+device name (i.e., /sys/fs/erofs/sda).
+(see also Documentation/ABI/testing/sysfs-fs-erofs)
+
 On-disk details
 ===============
 
diff --git a/fs/erofs/Makefile b/fs/erofs/Makefile
index 756fe2d652725..8a3317e38e5a8 100644
--- a/fs/erofs/Makefile
+++ b/fs/erofs/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 obj-$(CONFIG_EROFS_FS) += erofs.o
-erofs-objs := super.o inode.o data.o namei.o dir.o utils.o pcpubuf.o
+erofs-objs := super.o inode.o data.o namei.o dir.o utils.o pcpubuf.o sysfs.o
 erofs-$(CONFIG_EROFS_FS_XATTR) += xattr.o
 erofs-$(CONFIG_EROFS_FS_ZIP) += decompressor.o zmap.o zdata.o
 erofs-$(CONFIG_EROFS_FS_ZIP_LZMA) += decompressor_lzma.o
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index d5046bbbcaf1e..d75a45c691346 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -134,6 +134,10 @@ struct erofs_sb_info {
 	u8 volume_name[16];             /* volume name */
 	u32 feature_compat;
 	u32 feature_incompat;
+
+	/* sysfs support */
+	struct kobject s_kobj;		/* /sys/fs/erofs/<devname> */
+	struct completion s_kobj_unregister;
 };
 
 #define EROFS_SB(sb) ((struct erofs_sb_info *)(sb)->s_fs_info)
@@ -261,7 +265,9 @@ static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \
 EROFS_FEATURE_FUNCS(lz4_0padding, incompat, INCOMPAT_LZ4_0PADDING)
 EROFS_FEATURE_FUNCS(compr_cfgs, incompat, INCOMPAT_COMPR_CFGS)
 EROFS_FEATURE_FUNCS(big_pcluster, incompat, INCOMPAT_BIG_PCLUSTER)
+EROFS_FEATURE_FUNCS(chunked_file, incompat, INCOMPAT_CHUNKED_FILE)
 EROFS_FEATURE_FUNCS(device_table, incompat, INCOMPAT_DEVICE_TABLE)
+EROFS_FEATURE_FUNCS(compr_head2, incompat, INCOMPAT_COMPR_HEAD2)
 EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM)
 
 /* atomic flag definitions */
@@ -484,6 +490,12 @@ int erofs_pcpubuf_growsize(unsigned int nrpages);
 void erofs_pcpubuf_init(void);
 void erofs_pcpubuf_exit(void);
 
+/* sysfs.c */
+int erofs_register_sysfs(struct super_block *sb);
+void erofs_unregister_sysfs(struct super_block *sb);
+int __init erofs_init_sysfs(void);
+void erofs_exit_sysfs(void);
+
 /* utils.c / zdata.c */
 struct page *erofs_allocpage(struct page **pagepool, gfp_t gfp);
 static inline void erofs_pagepool_add(struct page **pagepool,
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 9862457b421a1..205d3c431e2d9 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -695,6 +695,10 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
 	if (err)
 		return err;
 
+	err = erofs_register_sysfs(sb);
+	if (err)
+		return err;
+
 	erofs_info(sb, "mounted with root inode @ nid %llu.", ROOT_NID(sbi));
 	return 0;
 }
@@ -808,6 +812,7 @@ static void erofs_put_super(struct super_block *sb)
 
 	DBG_BUGON(!sbi);
 
+	erofs_unregister_sysfs(sb);
 	erofs_shrinker_unregister(sb);
 #ifdef CONFIG_EROFS_FS_ZIP
 	iput(sbi->managed_cache);
@@ -852,6 +857,10 @@ static int __init erofs_module_init(void)
 	if (err)
 		goto zip_err;
 
+	err = erofs_init_sysfs();
+	if (err)
+		goto sysfs_err;
+
 	err = register_filesystem(&erofs_fs_type);
 	if (err)
 		goto fs_err;
@@ -859,6 +868,8 @@ static int __init erofs_module_init(void)
 	return 0;
 
 fs_err:
+	erofs_exit_sysfs();
+sysfs_err:
 	z_erofs_exit_zip_subsystem();
 zip_err:
 	z_erofs_lzma_exit();
@@ -877,6 +888,7 @@ static void __exit erofs_module_exit(void)
 	/* Ensure all RCU free inodes / pclusters are safe to be destroyed. */
 	rcu_barrier();
 
+	erofs_exit_sysfs();
 	z_erofs_exit_zip_subsystem();
 	z_erofs_lzma_exit();
 	erofs_exit_shrinker();
diff --git a/fs/erofs/sysfs.c b/fs/erofs/sysfs.c
new file mode 100644
index 0000000000000..33e15fa63c82d
--- /dev/null
+++ b/fs/erofs/sysfs.c
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C), 2008-2021, OPPO Mobile Comm Corp., Ltd.
+ *             https://www.oppo.com/
+ */
+#include <linux/sysfs.h>
+#include <linux/kobject.h>
+
+#include "internal.h"
+
+enum {
+	attr_feature,
+	attr_pointer_ui,
+	attr_pointer_bool,
+};
+
+enum {
+	struct_erofs_sb_info,
+};
+
+struct erofs_attr {
+	struct attribute attr;
+	short attr_id;
+	int struct_type, offset;
+};
+
+#define EROFS_ATTR(_name, _mode, _id)					\
+static struct erofs_attr erofs_attr_##_name = {				\
+	.attr = {.name = __stringify(_name), .mode = _mode },		\
+	.attr_id = attr_##_id,						\
+}
+#define EROFS_ATTR_FUNC(_name, _mode)	EROFS_ATTR(_name, _mode, _name)
+#define EROFS_ATTR_FEATURE(_name)	EROFS_ATTR(_name, 0444, feature)
+
+#define EROFS_ATTR_OFFSET(_name, _mode, _id, _struct)	\
+static struct erofs_attr erofs_attr_##_name = {			\
+	.attr = {.name = __stringify(_name), .mode = _mode },	\
+	.attr_id = attr_##_id,					\
+	.struct_type = struct_##_struct,			\
+	.offset = offsetof(struct _struct, _name),\
+}
+
+#define EROFS_ATTR_RW(_name, _id, _struct)	\
+	EROFS_ATTR_OFFSET(_name, 0644, _id, _struct)
+
+#define EROFS_RO_ATTR(_name, _id, _struct)	\
+	EROFS_ATTR_OFFSET(_name, 0444, _id, _struct)
+
+#define EROFS_ATTR_RW_UI(_name, _struct)	\
+	EROFS_ATTR_RW(_name, pointer_ui, _struct)
+
+#define EROFS_ATTR_RW_BOOL(_name, _struct)	\
+	EROFS_ATTR_RW(_name, pointer_bool, _struct)
+
+#define ATTR_LIST(name) (&erofs_attr_##name.attr)
+
+static struct attribute *erofs_attrs[] = {
+	NULL,
+};
+ATTRIBUTE_GROUPS(erofs);
+
+/* Features this copy of erofs supports */
+EROFS_ATTR_FEATURE(zero_padding);
+EROFS_ATTR_FEATURE(compr_cfgs);
+EROFS_ATTR_FEATURE(big_pcluster);
+EROFS_ATTR_FEATURE(chunked_file);
+EROFS_ATTR_FEATURE(device_table);
+EROFS_ATTR_FEATURE(compr_head2);
+EROFS_ATTR_FEATURE(sb_chksum);
+
+static struct attribute *erofs_feat_attrs[] = {
+	ATTR_LIST(zero_padding),
+	ATTR_LIST(compr_cfgs),
+	ATTR_LIST(big_pcluster),
+	ATTR_LIST(chunked_file),
+	ATTR_LIST(device_table),
+	ATTR_LIST(compr_head2),
+	ATTR_LIST(sb_chksum),
+	NULL,
+};
+ATTRIBUTE_GROUPS(erofs_feat);
+
+static unsigned char *__struct_ptr(struct erofs_sb_info *sbi,
+					  int struct_type, int offset)
+{
+	if (struct_type == struct_erofs_sb_info)
+		return (unsigned char *)sbi + offset;
+	return NULL;
+}
+
+static ssize_t erofs_attr_show(struct kobject *kobj,
+				struct attribute *attr, char *buf)
+{
+	struct erofs_sb_info *sbi = container_of(kobj, struct erofs_sb_info,
+						s_kobj);
+	struct erofs_attr *a = container_of(attr, struct erofs_attr, attr);
+	unsigned char *ptr = __struct_ptr(sbi, a->struct_type, a->offset);
+
+	switch (a->attr_id) {
+	case attr_feature:
+		return sysfs_emit(buf, "supported\n");
+	case attr_pointer_ui:
+		if (!ptr)
+			return 0;
+		return sysfs_emit(buf, "%u\n", *(unsigned int *)ptr);
+	case attr_pointer_bool:
+		if (!ptr)
+			return 0;
+		return sysfs_emit(buf, "%d\n", *(bool *)ptr);
+	}
+	return 0;
+}
+
+static ssize_t erofs_attr_store(struct kobject *kobj, struct attribute *attr,
+						const char *buf, size_t len)
+{
+	struct erofs_sb_info *sbi = container_of(kobj, struct erofs_sb_info,
+						s_kobj);
+	struct erofs_attr *a = container_of(attr, struct erofs_attr, attr);
+	unsigned char *ptr = __struct_ptr(sbi, a->struct_type, a->offset);
+	unsigned long t;
+	int ret;
+
+	switch (a->attr_id) {
+	case attr_pointer_ui:
+		if (!ptr)
+			return 0;
+		ret = kstrtoul(skip_spaces(buf), 0, &t);
+		if (ret)
+			return ret;
+		if (t != (unsigned int)t)
+			return -ERANGE;
+		*(unsigned int *)ptr = t;
+		return len;
+	case attr_pointer_bool:
+		if (!ptr)
+			return 0;
+		ret = kstrtoul(skip_spaces(buf), 0, &t);
+		if (ret)
+			return ret;
+		if (t != 0 && t != 1)
+			return -EINVAL;
+		*(bool *)ptr = !!t;
+		return len;
+	}
+	return 0;
+}
+
+static void erofs_sb_release(struct kobject *kobj)
+{
+	struct erofs_sb_info *sbi = container_of(kobj, struct erofs_sb_info,
+						 s_kobj);
+	complete(&sbi->s_kobj_unregister);
+}
+
+static const struct sysfs_ops erofs_attr_ops = {
+	.show	= erofs_attr_show,
+	.store	= erofs_attr_store,
+};
+
+static struct kobj_type erofs_sb_ktype = {
+	.default_groups = erofs_groups,
+	.sysfs_ops	= &erofs_attr_ops,
+	.release	= erofs_sb_release,
+};
+
+static struct kobj_type erofs_ktype = {
+	.sysfs_ops	= &erofs_attr_ops,
+};
+
+static struct kset erofs_root = {
+	.kobj	= {.ktype = &erofs_ktype},
+};
+
+static struct kobj_type erofs_feat_ktype = {
+	.default_groups = erofs_feat_groups,
+	.sysfs_ops	= &erofs_attr_ops,
+};
+
+static struct kobject erofs_feat = {
+	.kset	= &erofs_root,
+};
+
+int erofs_register_sysfs(struct super_block *sb)
+{
+	struct erofs_sb_info *sbi = EROFS_SB(sb);
+	int err;
+
+	sbi->s_kobj.kset = &erofs_root;
+	init_completion(&sbi->s_kobj_unregister);
+	err = kobject_init_and_add(&sbi->s_kobj, &erofs_sb_ktype, NULL,
+				   "%s", sb->s_id);
+	if (err)
+		goto put_sb_kobj;
+	return 0;
+
+put_sb_kobj:
+	kobject_put(&sbi->s_kobj);
+	wait_for_completion(&sbi->s_kobj_unregister);
+	return err;
+}
+
+void erofs_unregister_sysfs(struct super_block *sb)
+{
+	struct erofs_sb_info *sbi = EROFS_SB(sb);
+
+	kobject_del(&sbi->s_kobj);
+	kobject_put(&sbi->s_kobj);
+	wait_for_completion(&sbi->s_kobj_unregister);
+}
+
+int __init erofs_init_sysfs(void)
+{
+	int ret;
+
+	kobject_set_name(&erofs_root.kobj, "erofs");
+	erofs_root.kobj.parent = fs_kobj;
+	ret = kset_register(&erofs_root);
+	if (ret)
+		goto root_err;
+
+	ret = kobject_init_and_add(&erofs_feat, &erofs_feat_ktype,
+				   NULL, "features");
+	if (ret)
+		goto feat_err;
+	return ret;
+
+feat_err:
+	kobject_put(&erofs_feat);
+	kset_unregister(&erofs_root);
+root_err:
+	return ret;
+}
+
+void erofs_exit_sysfs(void)
+{
+	kobject_put(&erofs_feat);
+	kset_unregister(&erofs_root);
+}
-- 
GitLab


From b576a36a95598ed0c94f52f54244a4fc9d2d0a3e Mon Sep 17 00:00:00 2001
From: Mars Lin <marslin@google.com>
Date: Thu, 31 Mar 2022 13:22:57 +0800
Subject: [PATCH 4656/4878] ANDROID: Update the ABI symbol list

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function irq_data* irq_domain_get_irq_data(irq_domain*, unsigned int)'

Bug: 208368211
Change-Id: I513e4392ea9aa556d9acb7f8cc1f06d802e34dfb
Signed-off-by: Mars Lin <marslin@google.com>
---
 android/abi_gki_aarch64.xml     | 253 ++++++++++++++++++--------------
 android/abi_gki_aarch64_generic |   3 +
 2 files changed, 146 insertions(+), 110 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 149b2a5e43ae0..9810ebb3e4096 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -1940,6 +1940,7 @@
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       <elf-symbol name='irq_domain_create_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x135aa0df'/>
       <elf-symbol name='irq_domain_free_irqs_common' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd81079aa'/>
+      <elf-symbol name='irq_domain_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc839f675'/>
       <elf-symbol name='irq_domain_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fcf3277'/>
       <elf-symbol name='irq_domain_set_hwirq_and_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23b62735'/>
       <elf-symbol name='irq_domain_set_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe98f8b9f'/>
@@ -9247,26 +9248,6 @@
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@@ -15648,7 +15629,7 @@
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         </data-member>
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-          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
+          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
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       <pointer-type-def type-id='345f1a5f' size-in-bits='64' id='2227a3ab'/>
@@ -17652,7 +17633,7 @@
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-          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
+          <var-decl name='' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
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@@ -25589,7 +25570,7 @@
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-          <var-decl name='' type-id='ac5ab65c' visibility='default' filepath='include/net/nexthop.h' line='59' column='1'/>
+          <var-decl name='' type-id='ac5ab65b' visibility='default' filepath='include/net/nexthop.h' line='59' column='1'/>
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@@ -26998,7 +26979,7 @@
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-          <var-decl name='' type-id='ac5ab65e' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1'/>
+          <var-decl name='' type-id='ac5ab65d' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1'/>
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@@ -34118,6 +34099,17 @@
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       <pointer-type-def type-id='2b4e6dbe' size-in-bits='64' id='57d10d30'/>
+      <class-decl name='ieee802154_addr' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/net/cfg802154.h' line='230' column='1' id='57d8dd3d'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='mode' type-id='f9b06939' visibility='default' filepath='include/net/cfg802154.h' line='231' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='16'>
+          <var-decl name='pan_id' type-id='23119536' visibility='default' filepath='include/net/cfg802154.h' line='232' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='' type-id='ac5ab664' visibility='default' filepath='include/net/cfg802154.h' line='233' column='1'/>
+        </data-member>
+      </class-decl>
       <enum-decl name='thermal_trip_type' filepath='include/uapi/linux/thermal.h' line='12' column='1' id='57e8e954'>
         <underlying-type type-id='9cac1fee'/>
         <enumerator name='THERMAL_TRIP_ACTIVE' value='0'/>
@@ -35787,6 +35779,7 @@
         <return type-id='48b5725f'/>
       </function-type>
       <pointer-type-def type-id='86607661' size-in-bits='64' id='5afa70dd'/>
+      <pointer-type-def type-id='bb1a67f7' size-in-bits='64' id='5afbd3c3'/>
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@@ -42389,7 +42382,7 @@
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         </data-member>
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-          <var-decl name='' type-id='ac5ab660' visibility='default' filepath='include/net/route.h' line='62' column='1'/>
+          <var-decl name='' type-id='ac5ab65f' visibility='default' filepath='include/net/route.h' line='62' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1184'>
           <var-decl name='rt_mtu_locked' type-id='19c2251e' visibility='default' filepath='include/net/route.h' line='68' column='1'/>
@@ -46955,6 +46948,7 @@
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       <pointer-type-def type-id='cf081899' size-in-bits='64' id='78faece1'/>
       <qualified-type-def type-id='8a1bdab0' const='yes' id='78fc3761'/>
+      <pointer-type-def type-id='ff37489f' size-in-bits='64' id='790774ef'/>
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@@ -54461,7 +54455,65 @@
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-      <class-decl name='wpan_dev' is-struct='yes' visibility='default' is-declaration-only='yes' id='8ae2fb1d'/>
+      <class-decl name='wpan_dev' size-in-bits='704' is-struct='yes' visibility='default' filepath='include/net/cfg802154.h' line='326' column='1' id='8ae2fb1d'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='wpan_phy' type-id='82398c35' visibility='default' filepath='include/net/cfg802154.h' line='327' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='iftype' type-id='95e97e5e' visibility='default' filepath='include/net/cfg802154.h' line='328' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='list' type-id='72f469ec' visibility='default' filepath='include/net/cfg802154.h' line='331' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='netdev' type-id='68a2d05b' visibility='default' filepath='include/net/cfg802154.h' line='332' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='320'>
+          <var-decl name='header_ops' type-id='790774ef' visibility='default' filepath='include/net/cfg802154.h' line='334' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='384'>
+          <var-decl name='lowpan_dev' type-id='68a2d05b' visibility='default' filepath='include/net/cfg802154.h' line='337' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='448'>
+          <var-decl name='identifier' type-id='19c2251e' visibility='default' filepath='include/net/cfg802154.h' line='339' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='480'>
+          <var-decl name='pan_id' type-id='23119536' visibility='default' filepath='include/net/cfg802154.h' line='342' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='496'>
+          <var-decl name='short_addr' type-id='23119536' visibility='default' filepath='include/net/cfg802154.h' line='343' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='512'>
+          <var-decl name='extended_addr' type-id='a30e8d1f' visibility='default' filepath='include/net/cfg802154.h' line='344' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='576'>
+          <var-decl name='bsn' type-id='49178f86' visibility='default' filepath='include/net/cfg802154.h' line='347' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='608'>
+          <var-decl name='dsn' type-id='49178f86' visibility='default' filepath='include/net/cfg802154.h' line='349' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='640'>
+          <var-decl name='min_be' type-id='f9b06939' visibility='default' filepath='include/net/cfg802154.h' line='351' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='648'>
+          <var-decl name='max_be' type-id='f9b06939' visibility='default' filepath='include/net/cfg802154.h' line='352' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='656'>
+          <var-decl name='csma_retries' type-id='f9b06939' visibility='default' filepath='include/net/cfg802154.h' line='353' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='664'>
+          <var-decl name='frame_retries' type-id='fdbf7a0f' visibility='default' filepath='include/net/cfg802154.h' line='354' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='672'>
+          <var-decl name='lbt' type-id='b50a4934' visibility='default' filepath='include/net/cfg802154.h' line='356' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='680'>
+          <var-decl name='promiscuous_mode' type-id='b50a4934' visibility='default' filepath='include/net/cfg802154.h' line='358' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='688'>
+          <var-decl name='ackreq' type-id='b50a4934' visibility='default' filepath='include/net/cfg802154.h' line='361' column='1'/>
+        </data-member>
+      </class-decl>
       <enum-decl name='dma_desc_metadata_mode' filepath='include/linux/dmaengine.h' line='289' column='1' id='8ae66bc4'>
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@@ -58931,6 +58983,11 @@
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       <type-decl name='int' size-in-bits='32' id='95e97e5e'/>
+      <class-decl name='wpan_dev_header_ops' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/net/cfg802154.h' line='315' column='1' id='95fcbc94'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='create' type-id='5afbd3c3' visibility='default' filepath='include/net/cfg802154.h' line='320' column='1'/>
+        </data-member>
+      </class-decl>
       <function-type size-in-bits='64' id='960bee7e'>
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@@ -66654,7 +66711,6 @@
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           <var-decl name='active_reqs' type-id='95e97e5e' visibility='default' filepath='drivers/scsi/ufs/ufshcd.h' line='441' column='1'/>
@@ -69084,15 +69140,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='16' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='43' column='1' id='ac5ab65a'>
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@@ -69115,7 +69163,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='832' is-anonymous='yes' visibility='default' filepath='include/net/nexthop.h' line='59' column='1' id='ac5ab65b'>
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@@ -69126,7 +69174,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/nexthop.h' line='101' column='1' id='ac5ab65c'>
         <data-member access='public'>
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@@ -69134,7 +69182,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1' id='ac5ab65d'>
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@@ -69142,7 +69190,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65e'>
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@@ -69150,7 +69198,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab660'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65f'>
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@@ -69158,7 +69206,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab661'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab660'>
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@@ -69169,7 +69217,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1' id='ac5ab661'>
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           <var-decl name='tkip' type-id='e7f44027' visibility='default' filepath='include/net/mac80211.h' line='1896' column='1'/>
         </data-member>
@@ -69189,7 +69237,7 @@
           <var-decl name='hw' type-id='e7f44029' visibility='default' filepath='include/net/mac80211.h' line='1912' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab663'>
+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab662'>
         <data-member access='public'>
           <var-decl name='control' type-id='e7f4402b' visibility='default' filepath='include/net/mac80211.h' line='1081' column='1'/>
         </data-member>
@@ -69209,7 +69257,7 @@
           <var-decl name='driver_data' type-id='e4a26562' visibility='default' filepath='include/net/mac80211.h' line='1106' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab664'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab663'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f4402f' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1'/>
         </data-member>
@@ -69217,6 +69265,14 @@
           <var-decl name='jiffies' type-id='7359adad' visibility='default' filepath='include/net/mac80211.h' line='1074' column='1'/>
         </data-member>
       </union-decl>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg802154.h' line='233' column='1' id='ac5ab664'>
+        <data-member access='public'>
+          <var-decl name='short_addr' type-id='23119536' visibility='default' filepath='include/net/cfg802154.h' line='234' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='extended_addr' type-id='a30e8d1f' visibility='default' filepath='include/net/cfg802154.h' line='235' column='1'/>
+        </data-member>
+      </union-decl>
       <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab665'>
         <data-member access='public'>
           <var-decl name='band_pref' type-id='3eaa0294' visibility='default' filepath='include/net/cfg80211.h' line='2741' column='1'/>
@@ -73715,7 +73771,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/net/nexthop.h' line='99' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1024'>
-          <var-decl name='' type-id='ac5ab65d' visibility='default' filepath='include/net/nexthop.h' line='101' column='1'/>
+          <var-decl name='' type-id='ac5ab65c' visibility='default' filepath='include/net/nexthop.h' line='101' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='2449db3f' size-in-bits='64' id='b7589fb3'/>
@@ -74768,6 +74824,9 @@
         <parameter type-id='cd1b45ab'/>
         <return type-id='3f1a6b60'/>
       </function-type>
+      <array-type-def dimensions='1' type-id='e151255a' size-in-bits='131072' id='b9cedcb8'>
+        <subrange length='2048' type-id='7ff19f0f' id='e5323efb'/>
+      </array-type-def>
       <function-type size-in-bits='64' id='b9d8dce4'>
         <parameter type-id='807b7702'/>
         <parameter type-id='95e97e5e'/>
@@ -74785,6 +74844,7 @@
       <pointer-type-def type-id='850738b3' size-in-bits='64' id='ba09778f'/>
       <pointer-type-def type-id='e682e2f0' size-in-bits='64' id='ba0b1d2e'/>
       <pointer-type-def type-id='43489bca' size-in-bits='64' id='ba18e248'/>
+      <pointer-type-def type-id='d37aa9fa' size-in-bits='64' id='ba195270'/>
       <pointer-type-def type-id='d9609309' size-in-bits='64' id='ba1d878d'/>
       <pointer-type-def type-id='e82a9f1d' size-in-bits='64' id='ba21bbb1'/>
       <pointer-type-def type-id='636cc9ab' size-in-bits='64' id='ba21e62b'/>
@@ -75259,6 +75319,14 @@
       <pointer-type-def type-id='e26b47d7' size-in-bits='64' id='bb071cdb'/>
       <pointer-type-def type-id='a9ab8935' size-in-bits='64' id='bb0baf11'/>
       <pointer-type-def type-id='9bc083a1' size-in-bits='64' id='bb0f13d1'/>
+      <function-type size-in-bits='64' id='bb1a67f7'>
+        <parameter type-id='0fbf3cfd'/>
+        <parameter type-id='68a2d05b'/>
+        <parameter type-id='ba195270'/>
+        <parameter type-id='ba195270'/>
+        <parameter type-id='f0981eeb'/>
+        <return type-id='95e97e5e'/>
+      </function-type>
       <qualified-type-def type-id='32858f34' const='yes' id='bb21a21f'/>
       <pointer-type-def type-id='ecbaa04a' size-in-bits='64' id='bb28da1c'/>
       <pointer-type-def type-id='25b5e9dd' size-in-bits='64' id='bb2acc29'/>
@@ -78968,65 +79036,7 @@
       <pointer-type-def type-id='b6da1a0e' size-in-bits='64' id='c28fe484'/>
       <pointer-type-def type-id='cbab5390' size-in-bits='64' id='c297681a'/>
       <pointer-type-def type-id='dd9a5153' size-in-bits='64' id='c297924f'/>
-      <class-decl name='ip_mc_list' size-in-bits='1280' is-struct='yes' visibility='default' filepath='include/linux/igmp.h' line='70' column='1' id='c2a59aaa'>
-        <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='interface' type-id='fc6f14a9' visibility='default' filepath='include/linux/igmp.h' line='71' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='multiaddr' type-id='78a133c2' visibility='default' filepath='include/linux/igmp.h' line='72' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='96'>
-          <var-decl name='sfmode' type-id='f0981eeb' visibility='default' filepath='include/linux/igmp.h' line='73' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='sources' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='74' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='tomb' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='75' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='sfcount' type-id='f05e8e77' visibility='default' filepath='include/linux/igmp.h' line='76' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='384'>
-          <var-decl name='' type-id='ac5ab65a' visibility='default' filepath='include/linux/igmp.h' line='77' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='448'>
-          <var-decl name='next_hash' type-id='26479c18' visibility='default' filepath='include/linux/igmp.h' line='81' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='512'>
-          <var-decl name='timer' type-id='abe41e67' visibility='default' filepath='include/linux/igmp.h' line='82' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='960'>
-          <var-decl name='users' type-id='95e97e5e' visibility='default' filepath='include/linux/igmp.h' line='83' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='992'>
-          <var-decl name='refcnt' type-id='64615833' visibility='default' filepath='include/linux/igmp.h' line='84' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1024'>
-          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/linux/igmp.h' line='85' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1056'>
-          <var-decl name='tm_running' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='86' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1064'>
-          <var-decl name='reporter' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='87' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1072'>
-          <var-decl name='unsolicit_count' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='88' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1080'>
-          <var-decl name='loaded' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='89' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1088'>
-          <var-decl name='gsquery' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='90' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1096'>
-          <var-decl name='crcount' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='91' column='1'/>
-        </data-member>
-        <data-member access='public' layout-offset-in-bits='1152'>
-          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/igmp.h' line='92' column='1'/>
-        </data-member>
-      </class-decl>
+      <class-decl name='ip_mc_list' is-struct='yes' visibility='default' is-declaration-only='yes' id='c2a59aaa'/>
       <pointer-type-def type-id='5e80f131' size-in-bits='64' id='c2ab7955'/>
       <function-type size-in-bits='64' id='c2b07168'>
         <parameter type-id='1351523a'/>
@@ -82567,6 +82577,9 @@
       <pointer-type-def type-id='c9196d18' size-in-bits='64' id='cba10b6e'/>
       <pointer-type-def type-id='4b7a84f4' size-in-bits='64' id='cba114b6'/>
       <pointer-type-def type-id='284260b8' size-in-bits='64' id='cba1f2de'/>
+      <array-type-def dimensions='1' type-id='e151255a' size-in-bits='65536' id='cba3052b'>
+        <subrange length='1024' type-id='7ff19f0f' id='c60446f8'/>
+      </array-type-def>
       <function-type size-in-bits='64' id='cba59087'>
         <parameter type-id='eaa32e2f'/>
         <parameter type-id='91ce1af9'/>
@@ -85197,6 +85210,7 @@
       <pointer-type-def type-id='0ad12489' size-in-bits='64' id='d3769ffd'/>
       <pointer-type-def type-id='4dedc1bb' size-in-bits='64' id='d379869f'/>
       <pointer-type-def type-id='08dd4249' size-in-bits='64' id='d37a2705'/>
+      <qualified-type-def type-id='57d8dd3d' const='yes' id='d37aa9fa'/>
       <pointer-type-def type-id='7e8ddfae' size-in-bits='64' id='d3807eb0'/>
       <function-type size-in-bits='64' id='d385bfac'>
         <parameter type-id='b9af02c3'/>
@@ -91462,7 +91476,7 @@
           <var-decl name='nhc_lwtstate' type-id='d19f4fca' visibility='default' filepath='include/net/ip_fib.h' line='87' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='nhc_gw' type-id='ac5ab65f' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
+          <var-decl name='nhc_gw' type-id='ac5ab65e' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
           <var-decl name='nhc_weight' type-id='95e97e5e' visibility='default' filepath='include/net/ip_fib.h' line='94' column='1'/>
@@ -95838,7 +95852,7 @@
           <var-decl name='u3' type-id='8c17f46b' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='42' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='u' type-id='ac5ab65b' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='65' column='1'/>
+          <var-decl name='u' type-id='ac5ab65a' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='65' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='144'>
           <var-decl name='protonum' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='68' column='1'/>
@@ -95942,7 +95956,7 @@
       </class-decl>
       <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1060' column='1' id='e7f4402b'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='ac5ab664' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
+          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='vif' type-id='3a1577c5' visibility='default' filepath='include/net/mac80211.h' line='1077' column='1'/>
@@ -96461,7 +96475,20 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='84a0e7ab' size-in-bits='64' id='e812884b'/>
-      <class-decl name='can_dev_rcv_lists' is-struct='yes' visibility='default' is-declaration-only='yes' id='e82476af'/>
+      <class-decl name='can_dev_rcv_lists' size-in-bits='196928' is-struct='yes' visibility='default' filepath='include/linux/can/can-ml.h' line='55' column='1' id='e82476af'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='rx' type-id='fc3a8480' visibility='default' filepath='include/linux/can/can-ml.h' line='56' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='rx_sff' type-id='b9cedcb8' visibility='default' filepath='include/linux/can/can-ml.h' line='57' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='131328'>
+          <var-decl name='rx_eff' type-id='cba3052b' visibility='default' filepath='include/linux/can/can-ml.h' line='58' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='196864'>
+          <var-decl name='entries' type-id='95e97e5e' visibility='default' filepath='include/linux/can/can-ml.h' line='59' column='1'/>
+        </data-member>
+      </class-decl>
       <class-decl name='ieee80211_scan_request' size-in-bits='2048' is-struct='yes' visibility='default' filepath='include/net/mac80211.h' line='2645' column='1' id='e827ee6f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ies' type-id='80d7b69d' visibility='default' filepath='include/net/mac80211.h' line='2646' column='1'/>
@@ -99600,7 +99627,7 @@
           <var-decl name='type' type-id='703e082c' visibility='default' filepath='include/net/mac80211.h' line='463' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='u' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
+          <var-decl name='u' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='b5d64367' size-in-bits='64' id='f08a800b'/>
@@ -105251,6 +105278,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/fdtable.h' line='33' column='1'/>
         </data-member>
       </class-decl>
+      <qualified-type-def type-id='95fcbc94' const='yes' id='ff37489f'/>
       <class-decl name='timerqueue_head' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/timerqueue.h' line='14' column='1' id='ff3c7f20'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='rb_root' type-id='6fe1603d' visibility='default' filepath='include/linux/timerqueue.h' line='15' column='1'/>
@@ -116020,6 +116048,11 @@
         <parameter type-id='f0981eeb' name='nr_irqs' filepath='kernel/irq/irqdomain.c' line='1342' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
+      <function-decl name='irq_domain_get_irq_data' mangled-name='irq_domain_get_irq_data' filepath='kernel/irq/irqdomain.c' line='1274' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_get_irq_data'>
+        <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='1274' column='1'/>
+        <parameter type-id='f0981eeb' name='virq' filepath='kernel/irq/irqdomain.c' line='1275' column='1'/>
+        <return type-id='1c475548'/>
+      </function-decl>
       <function-decl name='irq_domain_remove' mangled-name='irq_domain_remove' filepath='kernel/irq/irqdomain.c' line='229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='irq_domain_remove'>
         <parameter type-id='7544e824' name='domain' filepath='kernel/irq/irqdomain.c' line='229' column='1'/>
         <return type-id='48b5725f'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 0db1fe038bc69..4d1614df5ecdf 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1106,7 +1106,9 @@
   irq_create_mapping_affinity
   irq_create_of_mapping
   __irq_domain_add
+  irq_domain_get_irq_data
   irq_domain_remove
+  irq_domain_set_info
   irq_domain_xlate_twocell
   irq_find_mapping
   irq_get_irq_data
@@ -1554,6 +1556,7 @@
   platform_find_device_by_driver
   platform_get_irq
   platform_get_irq_byname
+  platform_get_irq_optional
   platform_get_resource
   platform_get_resource_byname
   platform_irq_count
-- 
GitLab


From ae49ca9a176bf98d09524281a30567ee2451afaf Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Wed, 30 Mar 2022 16:11:28 +0100
Subject: [PATCH 4657/4878] ANDROID: KVM: arm64: pkvm: Don't access
 kvm_arm_hyp_percpu_base at EL1

The host KVM PMU code can currently index kvm_arm_hyp_percpu_base[]
through this_cpu_ptr_hyp_sym(), but will not actually dereference that
pointer when protected KVM is enabled. In preparation for making
kvm_arm_hyp_percpu_base[] unaccessible to the host, let's make sure the
indexing in hyp per-cpu pages is also done after the static key check to
avoid spurious accesses to EL2-private data from EL1.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 225169428
Change-Id: I3f4e3f7ee789c31a1ae1f67e07edf8fb34f520b9
---
 arch/arm64/kvm/pmu.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/pmu.c b/arch/arm64/kvm/pmu.c
index 03a6c1f4a09af..a8878fd8b696c 100644
--- a/arch/arm64/kvm/pmu.c
+++ b/arch/arm64/kvm/pmu.c
@@ -31,9 +31,13 @@ static bool kvm_pmu_switch_needed(struct perf_event_attr *attr)
  */
 void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr)
 {
-	struct kvm_host_data *ctx = this_cpu_ptr_hyp_sym(kvm_host_data);
+	struct kvm_host_data *ctx;
 
-	if (!kvm_arm_support_pmu_v3() || !ctx || !kvm_pmu_switch_needed(attr))
+	if (!kvm_arm_support_pmu_v3())
+		return;
+
+	ctx = this_cpu_ptr_hyp_sym(kvm_host_data);
+	if (!ctx || !kvm_pmu_switch_needed(attr))
 		return;
 
 	if (!attr->exclude_host)
@@ -47,9 +51,13 @@ void kvm_set_pmu_events(u32 set, struct perf_event_attr *attr)
  */
 void kvm_clr_pmu_events(u32 clr)
 {
-	struct kvm_host_data *ctx = this_cpu_ptr_hyp_sym(kvm_host_data);
+	struct kvm_host_data *ctx;
+
+	if (!kvm_arm_support_pmu_v3())
+		return;
 
-	if (!kvm_arm_support_pmu_v3() || !ctx)
+	ctx = this_cpu_ptr_hyp_sym(kvm_host_data);
+	if (!ctx)
 		return;
 
 	ctx->pmu_events.events_host &= ~clr;
-- 
GitLab


From 6e12d67ad0e0f9d823eeb35648b1fe37dfc161e6 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 29 Mar 2022 12:10:19 +0100
Subject: [PATCH 4658/4878] ANDROID: KVM: arm64: Unmap kvm_arm_hyp_percpu_base
 from the host

In pKVM mode, we can't trust the host not to mess with the hypervisor
per-cpu offsets, so let's move the array containing them to the nVHE
code.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 225169428
Change-Id: I9ef4175ce9cf00d6ff1c0e358551a565358f2408
---
 arch/arm64/include/asm/kvm_asm.h  | 4 ++--
 arch/arm64/kernel/image-vars.h    | 3 ---
 arch/arm64/kvm/arm.c              | 9 ++++-----
 arch/arm64/kvm/hyp/nvhe/hyp-smp.c | 2 ++
 4 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 630646297d78c..ef1cf41ea394f 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -113,7 +113,7 @@ enum __kvm_host_smccc_func {
 #define per_cpu_ptr_nvhe_sym(sym, cpu)						\
 	({									\
 		unsigned long base, off;					\
-		base = kvm_arm_hyp_percpu_base[cpu];				\
+		base = kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu];		\
 		off = (unsigned long)&CHOOSE_NVHE_SYM(sym) -			\
 		      (unsigned long)&CHOOSE_NVHE_SYM(__per_cpu_start);		\
 		base ? (typeof(CHOOSE_NVHE_SYM(sym))*)(base + off) : NULL;	\
@@ -201,7 +201,7 @@ DECLARE_KVM_HYP_SYM(__kvm_hyp_vector);
 #define __kvm_hyp_init		CHOOSE_NVHE_SYM(__kvm_hyp_init)
 #define __kvm_hyp_vector	CHOOSE_HYP_SYM(__kvm_hyp_vector)
 
-extern unsigned long kvm_arm_hyp_percpu_base[NR_CPUS];
+extern unsigned long kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[];
 DECLARE_KVM_NVHE_SYM(__per_cpu_start);
 DECLARE_KVM_NVHE_SYM(__per_cpu_end);
 
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index 2858ed8a42206..477c558a97c40 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -99,9 +99,6 @@ KVM_NVHE_ALIAS(gic_nonsecure_priorities);
 KVM_NVHE_ALIAS(__start___kvm_ex_table);
 KVM_NVHE_ALIAS(__stop___kvm_ex_table);
 
-/* Array containing bases of nVHE per-CPU memory regions. */
-KVM_NVHE_ALIAS(kvm_arm_hyp_percpu_base);
-
 /* PMU available static key */
 KVM_NVHE_ALIAS(kvm_arm_pmu_available);
 
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index e2b5dec6d6326..f0e2822447527 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -50,7 +50,6 @@ DEFINE_STATIC_KEY_FALSE(kvm_protected_mode_initialized);
 DECLARE_KVM_HYP_PER_CPU(unsigned long, kvm_hyp_vector);
 
 static DEFINE_PER_CPU(unsigned long, kvm_arm_hyp_stack_page);
-unsigned long kvm_arm_hyp_percpu_base[NR_CPUS];
 DECLARE_KVM_NVHE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
 
 /* The VMID used in the VTTBR */
@@ -1899,13 +1898,13 @@ static void teardown_hyp_mode(void)
 	free_hyp_pgds();
 	for_each_possible_cpu(cpu) {
 		free_page(per_cpu(kvm_arm_hyp_stack_page, cpu));
-		free_pages(kvm_arm_hyp_percpu_base[cpu], nvhe_percpu_order());
+		free_pages(kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu], nvhe_percpu_order());
 	}
 }
 
 static int do_pkvm_init(u32 hyp_va_bits)
 {
-	void *per_cpu_base = kvm_ksym_ref(kvm_arm_hyp_percpu_base);
+	void *per_cpu_base = kvm_ksym_ref(kvm_nvhe_sym(kvm_arm_hyp_percpu_base));
 	int ret;
 
 	preempt_disable();
@@ -2006,7 +2005,7 @@ static int init_hyp_mode(void)
 
 		page_addr = page_address(page);
 		memcpy(page_addr, CHOOSE_NVHE_SYM(__per_cpu_start), nvhe_percpu_size());
-		kvm_arm_hyp_percpu_base[cpu] = (unsigned long)page_addr;
+		kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu] = (unsigned long)page_addr;
 	}
 
 	/*
@@ -2074,7 +2073,7 @@ static int init_hyp_mode(void)
 	}
 
 	for_each_possible_cpu(cpu) {
-		char *percpu_begin = (char *)kvm_arm_hyp_percpu_base[cpu];
+		char *percpu_begin = (char *)kvm_nvhe_sym(kvm_arm_hyp_percpu_base)[cpu];
 		char *percpu_end = percpu_begin + nvhe_percpu_size();
 
 		/* Map Hyp percpu pages */
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-smp.c b/arch/arm64/kvm/hyp/nvhe/hyp-smp.c
index 9f54833af4009..04d194583f1e4 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-smp.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-smp.c
@@ -23,6 +23,8 @@ u64 cpu_logical_map(unsigned int cpu)
 	return hyp_cpu_logical_map[cpu];
 }
 
+unsigned long __ro_after_init kvm_arm_hyp_percpu_base[NR_CPUS];
+
 unsigned long __hyp_per_cpu_offset(unsigned int cpu)
 {
 	unsigned long *cpu_base_array;
-- 
GitLab


From fce8d906cf2a6c676705837e187b2e4300fd3608 Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Tue, 29 Mar 2022 13:29:28 +0100
Subject: [PATCH 4659/4878] ANDROID: KVM: arm64: Explicitely map
 kvm_vgic_global_state at EL2

The pkvm hypervisor may need to read the kvm_vgic_global_state variable
at EL2. Make sure to explicitely map it in the its stage-1 page-table
rather than relying on mapping all of .rodata.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 225169428
Change-Id: I72d1eba78fb6b7593d236539cd81269480856fdf
---
 arch/arm64/kvm/hyp/nvhe/setup.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index 18638652f06d6..cc2dc27488e0f 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -150,6 +150,10 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
 	if (ret)
 		return ret;
 
+	ret = pkvm_create_mappings(&kvm_vgic_global_state, &kvm_vgic_global_state + 1, prot);
+	if (ret)
+		return ret;
+
 	start = hyp_phys_to_virt(pvmfw_base);
 	end = start + pvmfw_size;
 	prot = pkvm_mkstate(PAGE_HYP, PKVM_PAGE_OWNED);
-- 
GitLab


From 11e605185f4a859a9f1eb15306fe9c3d732e640b Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Fri, 25 Mar 2022 15:34:00 +0000
Subject: [PATCH 4660/4878] ANDROID: KVM: arm64: Don't map host sections in
 pkvm

We no longer need to map the host's .rodata and .bss sections in the
pkvm hypervisor, so let's remove those mappings. This will avoid
creating dependencies at EL2 on host-controlled data-structures.

Signed-off-by: Quentin Perret <qperret@google.com>
Bug: 225169428
Change-Id: I0fcb0e1b34d3c7c0c226b3fd30cdec0e8d7bfb44
---
 arch/arm64/kernel/image-vars.h  |  6 ------
 arch/arm64/kvm/hyp/nvhe/setup.c | 14 +++-----------
 2 files changed, 3 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index 477c558a97c40..022f8fe07809c 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -113,12 +113,6 @@ KVM_NVHE_ALIAS_HYP(__memcpy, __pi_memcpy);
 KVM_NVHE_ALIAS_HYP(__memset, __pi_memset);
 #endif
 
-/* Kernel memory sections */
-KVM_NVHE_ALIAS(__start_rodata);
-KVM_NVHE_ALIAS(__end_rodata);
-KVM_NVHE_ALIAS(__bss_start);
-KVM_NVHE_ALIAS(__bss_stop);
-
 /* Hyp memory sections */
 KVM_NVHE_ALIAS(__hyp_idmap_text_start);
 KVM_NVHE_ALIAS(__hyp_idmap_text_end);
diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c
index cc2dc27488e0f..1a6f3eba50358 100644
--- a/arch/arm64/kvm/hyp/nvhe/setup.c
+++ b/arch/arm64/kvm/hyp/nvhe/setup.c
@@ -133,23 +133,15 @@ static int recreate_hyp_mappings(phys_addr_t phys, unsigned long size,
 	}
 
 	/*
-	 * Map the host's .bss and .rodata sections RO in the hypervisor, but
-	 * transfer the ownership from the host to the hypervisor itself to
-	 * make sure it can't be donated or shared with another entity.
+	 * Map the host sections RO in the hypervisor, but transfer the
+	 * ownership from the host to the hypervisor itself to make sure they
+	 * can't be donated or shared with another entity.
 	 *
 	 * The ownership transition requires matching changes in the host
 	 * stage-2. This will be done later (see finalize_host_mappings()) once
 	 * the hyp_vmemmap is addressable.
 	 */
 	prot = pkvm_mkstate(PAGE_HYP_RO, PKVM_PAGE_SHARED_OWNED);
-	ret = pkvm_create_mappings(__start_rodata, __end_rodata, prot);
-	if (ret)
-		return ret;
-
-	ret = pkvm_create_mappings(__hyp_bss_end, __bss_stop, prot);
-	if (ret)
-		return ret;
-
 	ret = pkvm_create_mappings(&kvm_vgic_global_state, &kvm_vgic_global_state + 1, prot);
 	if (ret)
 		return ret;
-- 
GitLab


From 30d72758dbe0e7fa9992f5d21ee8d23eec27934a Mon Sep 17 00:00:00 2001
From: Pradeep P V K <quic_pragalla@quicinc.com>
Date: Mon, 6 Dec 2021 14:16:45 +0530
Subject: [PATCH 4661/4878] FROMLIST: fuse: give wakeup hints to the scheduler

The synchronous wakeup interface is available only for the
interruptible wakeup. Add it for normal wakeup and use this
synchronous wakeup interface to wakeup the userspace daemon.
Scheduler can make use of this hint to find a better CPU for
the waker task.

With this change the performance numbers for compress, decompress
and copy use-cases on /sdcard path has improved by ~30%.

Use-case details:
1. copy 10000 files of each 4k size into /sdcard path
2. use any File explorer application that has compress/decompress
support
3. start compress/decompress and capture the time.

-------------------------------------------------
| Default   | wakeup support | Improvement/Diff |
-------------------------------------------------
| 13.8 sec  | 9.9 sec        | 3.9 sec (28.26%) |
-------------------------------------------------

Co-developed-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com>
Signed-off-by: Pradeep P V K <quic_pragalla@quicinc.com>

Bug: 216261533
Link: https://lore.kernel.org/lkml/1638780405-38026-1-git-send-email-quic_pragalla@quicinc.com/
Change-Id: I9ac89064e34b1e0605064bf4d2d3a310679cb605
Signed-off-by: Pradeep P V K <quic_pragalla@quicinc.com>
Signed-off-by: Alessio Balsini <balsini@google.com>
---
 fs/fuse/dev.c        | 21 ++++++++++++---------
 fs/fuse/fuse_i.h     |  6 +++---
 fs/fuse/virtio_fs.c  |  8 +++++---
 include/linux/wait.h |  1 +
 4 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index b8ef63c4fc27c..5a87d1247d82f 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -208,10 +208,13 @@ static unsigned int fuse_req_hash(u64 unique)
 /**
  * A new request is available, wake fiq->waitq
  */
-static void fuse_dev_wake_and_unlock(struct fuse_iqueue *fiq)
+static void fuse_dev_wake_and_unlock(struct fuse_iqueue *fiq, bool sync)
 __releases(fiq->lock)
 {
-	wake_up(&fiq->waitq);
+	if (sync)
+		wake_up_sync(&fiq->waitq);
+	else
+		wake_up(&fiq->waitq);
 	kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
 	spin_unlock(&fiq->lock);
 }
@@ -224,14 +227,14 @@ const struct fuse_iqueue_ops fuse_dev_fiq_ops = {
 EXPORT_SYMBOL_GPL(fuse_dev_fiq_ops);
 
 static void queue_request_and_unlock(struct fuse_iqueue *fiq,
-				     struct fuse_req *req)
+				     struct fuse_req *req, bool sync)
 __releases(fiq->lock)
 {
 	req->in.h.len = sizeof(struct fuse_in_header) +
 		fuse_len_args(req->args->in_numargs,
 			      (struct fuse_arg *) req->args->in_args);
 	list_add_tail(&req->list, &fiq->pending);
-	fiq->ops->wake_pending_and_unlock(fiq);
+	fiq->ops->wake_pending_and_unlock(fiq, sync);
 }
 
 void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
@@ -251,7 +254,7 @@ void fuse_queue_forget(struct fuse_conn *fc, struct fuse_forget_link *forget,
 	if (fiq->connected) {
 		fiq->forget_list_tail->next = forget;
 		fiq->forget_list_tail = forget;
-		fiq->ops->wake_forget_and_unlock(fiq);
+		fiq->ops->wake_forget_and_unlock(fiq, false);
 	} else {
 		kfree(forget);
 		spin_unlock(&fiq->lock);
@@ -271,7 +274,7 @@ static void flush_bg_queue(struct fuse_conn *fc)
 		fc->active_background++;
 		spin_lock(&fiq->lock);
 		req->in.h.unique = fuse_get_unique(fiq);
-		queue_request_and_unlock(fiq, req);
+		queue_request_and_unlock(fiq, req, false);
 	}
 }
 
@@ -364,7 +367,7 @@ static int queue_interrupt(struct fuse_req *req)
 			spin_unlock(&fiq->lock);
 			return 0;
 		}
-		fiq->ops->wake_interrupt_and_unlock(fiq);
+		fiq->ops->wake_interrupt_and_unlock(fiq, false);
 	} else {
 		spin_unlock(&fiq->lock);
 	}
@@ -431,7 +434,7 @@ static void __fuse_request_send(struct fuse_req *req)
 		/* acquire extra reference, since request is still needed
 		   after fuse_request_end() */
 		__fuse_get_request(req);
-		queue_request_and_unlock(fiq, req);
+		queue_request_and_unlock(fiq, req, true);
 
 		request_wait_answer(req);
 		/* Pairs with smp_wmb() in fuse_request_end() */
@@ -607,7 +610,7 @@ static int fuse_simple_notify_reply(struct fuse_mount *fm,
 
 	spin_lock(&fiq->lock);
 	if (fiq->connected) {
-		queue_request_and_unlock(fiq, req);
+		queue_request_and_unlock(fiq, req, false);
 	} else {
 		err = -ENODEV;
 		spin_unlock(&fiq->lock);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 87f2f2e5c5a89..d48f5b1e61784 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -436,19 +436,19 @@ struct fuse_iqueue_ops {
 	/**
 	 * Signal that a forget has been queued
 	 */
-	void (*wake_forget_and_unlock)(struct fuse_iqueue *fiq)
+	void (*wake_forget_and_unlock)(struct fuse_iqueue *fiq, bool sync)
 		__releases(fiq->lock);
 
 	/**
 	 * Signal that an INTERRUPT request has been queued
 	 */
-	void (*wake_interrupt_and_unlock)(struct fuse_iqueue *fiq)
+	void (*wake_interrupt_and_unlock)(struct fuse_iqueue *fiq, bool sync)
 		__releases(fiq->lock);
 
 	/**
 	 * Signal that a request has been queued
 	 */
-	void (*wake_pending_and_unlock)(struct fuse_iqueue *fiq)
+	void (*wake_pending_and_unlock)(struct fuse_iqueue *fiq, bool sync)
 		__releases(fiq->lock);
 
 	/**
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index b9cfb1165ff42..90a574ba92cf9 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -971,7 +971,7 @@ static struct virtio_driver virtio_fs_driver = {
 #endif
 };
 
-static void virtio_fs_wake_forget_and_unlock(struct fuse_iqueue *fiq)
+static void virtio_fs_wake_forget_and_unlock(struct fuse_iqueue *fiq, bool sync)
 __releases(fiq->lock)
 {
 	struct fuse_forget_link *link;
@@ -1006,7 +1006,8 @@ __releases(fiq->lock)
 	kfree(link);
 }
 
-static void virtio_fs_wake_interrupt_and_unlock(struct fuse_iqueue *fiq)
+static void virtio_fs_wake_interrupt_and_unlock(struct fuse_iqueue *fiq,
+						bool sync)
 __releases(fiq->lock)
 {
 	/*
@@ -1221,7 +1222,8 @@ out:
 	return ret;
 }
 
-static void virtio_fs_wake_pending_and_unlock(struct fuse_iqueue *fiq)
+static void virtio_fs_wake_pending_and_unlock(struct fuse_iqueue *fiq,
+					      bool sync)
 __releases(fiq->lock)
 {
 	unsigned int queue_id = VQ_REQUEST; /* TODO multiqueue */
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 9b8b0833100a0..5dfae54f88fde 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -219,6 +219,7 @@ void __wake_up_pollfree(struct wait_queue_head *wq_head);
 #define wake_up_interruptible_nr(x, nr)	__wake_up(x, TASK_INTERRUPTIBLE, nr, NULL)
 #define wake_up_interruptible_all(x)	__wake_up(x, TASK_INTERRUPTIBLE, 0, NULL)
 #define wake_up_interruptible_sync(x)	__wake_up_sync((x), TASK_INTERRUPTIBLE)
+#define wake_up_sync(x)			__wake_up_sync((x), TASK_NORMAL)
 
 /*
  * Wakeup macros to be used to report events to the targets.
-- 
GitLab


From c7912e3027ddc317f9355824fe6ffb30110c561e Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 23 Mar 2022 11:15:23 +0800
Subject: [PATCH 4662/4878] UPSTREAM: Revert "virtio-pci: harden INTX
 interrupts"

This reverts commit 080cd7c3ac8701081d143a15ba17dd9475313188. Since
the MSI-X interrupts hardening will be reverted in the next patch. We
will rework the interrupt hardening in the future.

Fixes: 080cd7c3ac87 ("virtio-pci: harden INTX interrupts")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20220323031524.6555-1-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 7b79edfb862d6b1ecc66479419ae67a7db2d02e3)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I11ea35dcff3cfd43a535acf2033d7921f39c8be7
---
 drivers/virtio/virtio_pci_common.c | 23 ++---------------------
 drivers/virtio/virtio_pci_common.h |  1 -
 2 files changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 1bce254a462a9..8d8f83aca7218 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -30,16 +30,8 @@ void vp_disable_cbs(struct virtio_device *vdev)
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	int i;
 
-	if (vp_dev->intx_enabled) {
-		/*
-		 * The below synchronize() guarantees that any
-		 * interrupt for this line arriving after
-		 * synchronize_irq() has completed is guaranteed to see
-		 * intx_soft_enabled == false.
-		 */
-		WRITE_ONCE(vp_dev->intx_soft_enabled, false);
+	if (vp_dev->intx_enabled)
 		synchronize_irq(vp_dev->pci_dev->irq);
-	}
 
 	for (i = 0; i < vp_dev->msix_vectors; ++i)
 		disable_irq(pci_irq_vector(vp_dev->pci_dev, i));
@@ -51,16 +43,8 @@ void vp_enable_cbs(struct virtio_device *vdev)
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	int i;
 
-	if (vp_dev->intx_enabled) {
-		disable_irq(vp_dev->pci_dev->irq);
-		/*
-		 * The above disable_irq() provides TSO ordering and
-		 * as such promotes the below store to store-release.
-		 */
-		WRITE_ONCE(vp_dev->intx_soft_enabled, true);
-		enable_irq(vp_dev->pci_dev->irq);
+	if (vp_dev->intx_enabled)
 		return;
-	}
 
 	for (i = 0; i < vp_dev->msix_vectors; ++i)
 		enable_irq(pci_irq_vector(vp_dev->pci_dev, i));
@@ -113,9 +97,6 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
 	struct virtio_pci_device *vp_dev = opaque;
 	u8 isr;
 
-	if (!READ_ONCE(vp_dev->intx_soft_enabled))
-		return IRQ_NONE;
-
 	/* reading the ISR has the effect of also clearing it so it's very
 	 * important to save off the value. */
 	isr = ioread8(vp_dev->isr);
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index 94cc3cb0f18f1..33058e31e470b 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -82,7 +82,6 @@ struct virtio_pci_device {
 	/* MSI-X support */
 	int msix_enabled;
 	int intx_enabled;
-	bool intx_soft_enabled;
 	cpumask_var_t *msix_affinity_masks;
 	/* Name strings for interrupts. This size should be enough,
 	 * and I'm too lazy to allocate each name separately. */
-- 
GitLab


From 7e5df18bee6e8d3111db944d2a081cf7665ae694 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 23 Mar 2022 11:15:24 +0800
Subject: [PATCH 4663/4878] UPSTREAM: Revert "virtio_pci: harden MSI-X
 interrupts"

This reverts commit 9e35276a5344f74d4a3600fc4100b3dd251d5c56. Issue
were reported for the drivers that are using affinity managed IRQ
where manually toggling IRQ status is not expected. And we forget to
enable the interrupts in the restore path as well.

In the future, we will rework on the interrupt hardening.

Fixes: 9e35276a5344 ("virtio_pci: harden MSI-X interrupts")
Reported-by: Marc Zyngier <maz@kernel.org>
Reported-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20220323031524.6555-2-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit eb4cecb453a19b34d5454b49532e09e9cb0c1529)
Bug: 196772804
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: I05264d9e61d558522a8a20cf87399aa3578b3a6e
---
 drivers/virtio/virtio_pci_common.c | 27 ++++++---------------------
 drivers/virtio/virtio_pci_common.h |  6 ++----
 drivers/virtio/virtio_pci_legacy.c |  5 ++---
 drivers/virtio/virtio_pci_modern.c |  6 ++----
 4 files changed, 12 insertions(+), 32 deletions(-)

diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 8d8f83aca7218..b35bb2d57f62c 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -24,8 +24,8 @@ MODULE_PARM_DESC(force_legacy,
 		 "Force legacy mode for transitional virtio 1 devices");
 #endif
 
-/* disable irq handlers */
-void vp_disable_cbs(struct virtio_device *vdev)
+/* wait for pending irq handlers */
+void vp_synchronize_vectors(struct virtio_device *vdev)
 {
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	int i;
@@ -34,20 +34,7 @@ void vp_disable_cbs(struct virtio_device *vdev)
 		synchronize_irq(vp_dev->pci_dev->irq);
 
 	for (i = 0; i < vp_dev->msix_vectors; ++i)
-		disable_irq(pci_irq_vector(vp_dev->pci_dev, i));
-}
-
-/* enable irq handlers */
-void vp_enable_cbs(struct virtio_device *vdev)
-{
-	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
-	int i;
-
-	if (vp_dev->intx_enabled)
-		return;
-
-	for (i = 0; i < vp_dev->msix_vectors; ++i)
-		enable_irq(pci_irq_vector(vp_dev->pci_dev, i));
+		synchronize_irq(pci_irq_vector(vp_dev->pci_dev, i));
 }
 
 /* the notify function used when creating a virt queue */
@@ -154,8 +141,7 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 	snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
 		 "%s-config", name);
 	err = request_irq(pci_irq_vector(vp_dev->pci_dev, v),
-			  vp_config_changed, IRQF_NO_AUTOEN,
-			  vp_dev->msix_names[v],
+			  vp_config_changed, 0, vp_dev->msix_names[v],
 			  vp_dev);
 	if (err)
 		goto error;
@@ -174,8 +160,7 @@ static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
 		snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
 			 "%s-virtqueues", name);
 		err = request_irq(pci_irq_vector(vp_dev->pci_dev, v),
-				  vp_vring_interrupt, IRQF_NO_AUTOEN,
-				  vp_dev->msix_names[v],
+				  vp_vring_interrupt, 0, vp_dev->msix_names[v],
 				  vp_dev);
 		if (err)
 			goto error;
@@ -352,7 +337,7 @@ static int vp_find_vqs_msix(struct virtio_device *vdev, unsigned nvqs,
 			 "%s-%s",
 			 dev_name(&vp_dev->vdev.dev), names[i]);
 		err = request_irq(pci_irq_vector(vp_dev->pci_dev, msix_vec),
-				  vring_interrupt, IRQF_NO_AUTOEN,
+				  vring_interrupt, 0,
 				  vp_dev->msix_names[msix_vec],
 				  vqs[i]);
 		if (err)
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index 33058e31e470b..b2f0eb4067cbf 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -120,10 +120,8 @@ static struct virtio_pci_device *to_vp_device(struct virtio_device *vdev)
 	return container_of(vdev, struct virtio_pci_device, vdev);
 }
 
-/* disable irq handlers */
-void vp_disable_cbs(struct virtio_device *vdev);
-/* enable irq handlers */
-void vp_enable_cbs(struct virtio_device *vdev);
+/* wait for pending irq handlers */
+void vp_synchronize_vectors(struct virtio_device *vdev);
 /* the notify function used when creating a virt queue */
 bool vp_notify(struct virtqueue *vq);
 /* the config->del_vqs() implementation */
diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c
index d9c95d89cdd08..d62e9835aeeca 100644
--- a/drivers/virtio/virtio_pci_legacy.c
+++ b/drivers/virtio/virtio_pci_legacy.c
@@ -97,8 +97,8 @@ static void vp_reset(struct virtio_device *vdev)
 	/* Flush out the status write, and flush in device writes,
 	 * including MSi-X interrupts, if any. */
 	ioread8(vp_dev->ioaddr + VIRTIO_PCI_STATUS);
-	/* Disable VQ/configuration callbacks. */
-	vp_disable_cbs(vdev);
+	/* Flush pending VQ/configuration callbacks. */
+	vp_synchronize_vectors(vdev);
 }
 
 static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
@@ -194,7 +194,6 @@ static void del_vq(struct virtio_pci_vq_info *info)
 }
 
 static const struct virtio_config_ops virtio_pci_config_ops = {
-	.enable_cbs	= vp_enable_cbs,
 	.get		= vp_get,
 	.set		= vp_set,
 	.get_status	= vp_get_status,
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index d30e00852318e..3d6ae5a5e252e 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -291,8 +291,8 @@ static void vp_reset(struct virtio_device *vdev)
 	 */
 	while (vp_ioread8(&vp_dev->common->device_status))
 		msleep(1);
-	/* Disable VQ/configuration callbacks. */
-	vp_disable_cbs(vdev);
+	/* Flush pending VQ/configuration callbacks. */
+	vp_synchronize_vectors(vdev);
 }
 
 static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
@@ -538,7 +538,6 @@ static bool vp_get_shm_region(struct virtio_device *vdev,
 }
 
 static const struct virtio_config_ops virtio_pci_config_nodev_ops = {
-	.enable_cbs	= vp_enable_cbs,
 	.get		= NULL,
 	.set		= NULL,
 	.generation	= vp_generation,
@@ -556,7 +555,6 @@ static const struct virtio_config_ops virtio_pci_config_nodev_ops = {
 };
 
 static const struct virtio_config_ops virtio_pci_config_ops = {
-	.enable_cbs	= vp_enable_cbs,
 	.get		= vp_get,
 	.set		= vp_set,
 	.generation	= vp_generation,
-- 
GitLab


From aadf7ad9db2f7d93ecfb34d0e4f328519460c94e Mon Sep 17 00:00:00 2001
From: Keir Fraser <keirf@google.com>
Date: Fri, 1 Apr 2022 10:44:41 +0000
Subject: [PATCH 4664/4878] BACKPORT: virtio: pci: check bar values read from
 virtio config space

virtio pci config structures may in future have non-standard bar
values in the bar field. We should anticipate this by skipping any
structures containing such a reserved value.

The bar value should never change: check for harmful modified values
we re-read it from the config space in vp_modern_map_capability().

Also clean up an existing check to consistently use PCI_STD_NUM_BARS.

Signed-off-by: Keir Fraser <keirf@google.com>
Link: https://lore.kernel.org/r/20220323140727.3499235-1-keirf@google.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 3f63a1d7f6f500b6891b1003cec3e23ea4996a2e)
Bug: 222232623
[keirf@: Pass virtio_pci_device to map_capability. Move everything
into virtio_pci_modern.c]
Signed-off-by: Keir Fraser <keirf@google.com>
Change-Id: Idbba48154a051cf173b9cb0bd40c77fcf02902a4
---
 drivers/virtio/virtio_pci_modern.c | 34 +++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 3d6ae5a5e252e..2158e16251334 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -63,12 +63,13 @@ static void vp_iowrite64_twopart(u64 val,
 	vp_iowrite32(val >> 32, hi);
 }
 
-static void __iomem *map_capability(struct pci_dev *dev, int off,
+static void __iomem *map_capability(struct virtio_pci_device *vp_dev, int off,
 				    size_t minlen,
 				    u32 align,
 				    u32 start, u32 size,
 				    size_t *len)
 {
+	struct pci_dev *dev = vp_dev->pci_dev;
 	u8 bar;
 	u32 offset, length;
 	void __iomem *p;
@@ -81,6 +82,13 @@ static void __iomem *map_capability(struct pci_dev *dev, int off,
 	pci_read_config_dword(dev, off + offsetof(struct virtio_pci_cap, length),
 			      &length);
 
+	/* Check if the BAR may have changed since we requested the region. */
+	if (bar >= PCI_STD_NUM_BARS || !(vp_dev->modern_bars & (1 << bar))) {
+		dev_err(&dev->dev,
+			"virtio_pci: bar unexpectedly changed to %u\n", bar);
+		return NULL;
+	}
+
 	if (length <= start) {
 		dev_err(&dev->dev,
 			"virtio_pci: bad capability len %u (>%u expected)\n",
@@ -370,7 +378,7 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
 		vq->priv = (void __force *)vp_dev->notify_base +
 			off * vp_dev->notify_offset_multiplier;
 	} else {
-		vq->priv = (void __force *)map_capability(vp_dev->pci_dev,
+		vq->priv = (void __force *)map_capability(vp_dev,
 					  vp_dev->notify_map_cap, 2, 2,
 					  off * vp_dev->notify_offset_multiplier, 2,
 					  NULL);
@@ -451,7 +459,7 @@ static int virtio_pci_find_shm_cap(struct pci_dev *dev, u8 required_id,
 
 	for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR); pos > 0;
 	     pos = pci_find_next_capability(dev, pos, PCI_CAP_ID_VNDR)) {
-		u8 type, cap_len, id;
+		u8 type, cap_len, id, res_bar;
 		u32 tmp32;
 		u64 res_offset, res_length;
 
@@ -473,9 +481,14 @@ static int virtio_pci_find_shm_cap(struct pci_dev *dev, u8 required_id,
 		if (id != required_id)
 			continue;
 
-		/* Type, and ID match, looks good */
 		pci_read_config_byte(dev, pos + offsetof(struct virtio_pci_cap,
-							 bar), bar);
+							 bar), &res_bar);
+		if (res_bar >= PCI_STD_NUM_BARS)
+			continue;
+
+		/* Type and ID match, and the BAR value isn't reserved.
+		 * Looks good.
+		 */
 
 		/* Read the lower 32bit of length and offset */
 		pci_read_config_dword(dev, pos + offsetof(struct virtio_pci_cap,
@@ -495,6 +508,7 @@ static int virtio_pci_find_shm_cap(struct pci_dev *dev, u8 required_id,
 						     length_hi), &tmp32);
 		res_length |= ((u64)tmp32) << 32;
 
+		*bar = res_bar;
 		*offset = res_offset;
 		*len = res_length;
 
@@ -597,7 +611,7 @@ static inline int virtio_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
 				     &bar);
 
 		/* Ignore structures with reserved BAR values */
-		if (bar > 0x5)
+		if (bar >= PCI_STD_NUM_BARS)
 			continue;
 
 		if (type == cfg_type) {
@@ -743,13 +757,13 @@ int virtio_pci_modern_probe(struct virtio_pci_device *vp_dev)
 		return err;
 
 	err = -EINVAL;
-	vp_dev->common = map_capability(pci_dev, common,
+	vp_dev->common = map_capability(vp_dev, common,
 					sizeof(struct virtio_pci_common_cfg), 4,
 					0, sizeof(struct virtio_pci_common_cfg),
 					NULL);
 	if (!vp_dev->common)
 		goto err_map_common;
-	vp_dev->isr = map_capability(pci_dev, isr, sizeof(u8), 1,
+	vp_dev->isr = map_capability(vp_dev, isr, sizeof(u8), 1,
 				     0, 1,
 				     NULL);
 	if (!vp_dev->isr)
@@ -776,7 +790,7 @@ int virtio_pci_modern_probe(struct virtio_pci_device *vp_dev)
 	 * Otherwise, map each VQ individually later.
 	 */
 	if ((u64)notify_length + (notify_offset % PAGE_SIZE) <= PAGE_SIZE) {
-		vp_dev->notify_base = map_capability(pci_dev, notify, 2, 2,
+		vp_dev->notify_base = map_capability(vp_dev, notify, 2, 2,
 						     0, notify_length,
 						     &vp_dev->notify_len);
 		if (!vp_dev->notify_base)
@@ -789,7 +803,7 @@ int virtio_pci_modern_probe(struct virtio_pci_device *vp_dev)
 	 * is more than enough for all existing devices.
 	 */
 	if (device) {
-		vp_dev->device = map_capability(pci_dev, device, 0, 4,
+		vp_dev->device = map_capability(vp_dev, device, 0, 4,
 						0, PAGE_SIZE,
 						&vp_dev->device_len);
 		if (!vp_dev->device)
-- 
GitLab


From 5748592d14a84529a56378b765382297e28ea5ce Mon Sep 17 00:00:00 2001
From: Valentin Schneider <valentin.schneider@arm.com>
Date: Wed, 16 Feb 2022 17:38:57 +0000
Subject: [PATCH 4665/4878] ANDROID: arm64: Partial MPAM sysreg definition
 import

This is a partial cherry-pick of commit:

  7fe77616f156 ("arm64: cpufeature: discover CPU support for MPAM")

from git://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git

Bug: 221768437
Change-Id: I77101abb07f9b73dbc7cc2a53ac44fbf772f0b1d
Signed-off-by: Valentin Schneider <Valentin.Schneider@arm.com>
Signed-off-by: Beata Michalska <beata.michalska@arm.com>
---
 arch/arm64/include/asm/sysreg.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 3567520ac7012..e706e55c6494d 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -394,7 +394,10 @@
 #define SYS_LOREA_EL1			sys_reg(3, 0, 10, 4, 1)
 #define SYS_LORN_EL1			sys_reg(3, 0, 10, 4, 2)
 #define SYS_LORC_EL1			sys_reg(3, 0, 10, 4, 3)
+#define SYS_MPAMIDR_EL1			sys_reg(3, 0, 10, 4, 4)
 #define SYS_LORID_EL1			sys_reg(3, 0, 10, 4, 7)
+#define SYS_MPAM1_EL1			sys_reg(3, 0, 10, 5, 0)
+#define SYS_MPAM0_EL1			sys_reg(3, 0, 10, 5, 1)
 
 #define SYS_VBAR_EL1			sys_reg(3, 0, 12, 0, 0)
 #define SYS_DISR_EL1			sys_reg(3, 0, 12, 1, 1)
@@ -536,6 +539,10 @@
 #define SYS_TFSR_EL2			sys_reg(3, 4, 5, 6, 0)
 #define SYS_FAR_EL2			sys_reg(3, 4, 6, 0, 0)
 
+#define SYS_MPAMHCR_EL2			sys_reg(3, 4, 10, 4, 0)
+#define SYS_MPAMVPMV_EL2		sys_reg(3, 4, 10, 4, 1)
+#define SYS_MPAM2_EL2			sys_reg(3, 4, 10, 5, 0)
+
 #define SYS_VDISR_EL2			sys_reg(3, 4, 12, 1,  1)
 #define __SYS__AP0Rx_EL2(x)		sys_reg(3, 4, 12, 8, x)
 #define SYS_ICH_AP0R0_EL2		__SYS__AP0Rx_EL2(0)
-- 
GitLab


From 8302ed7fba4cb15968bd009d97758a392db36424 Mon Sep 17 00:00:00 2001
From: James Morse <james.morse@arm.com>
Date: Mon, 2 Jul 2018 11:15:31 +0100
Subject: [PATCH 4666/4878] FROMGIT: arm64: head.S: Initialise MPAM EL2
 registers and disable traps

Add code to head.S's el2_setup to detect MPAM and disable any EL2 traps.
This register resets to an unknown value, setting it to the default
parititons/pmg before we enable the MMU is the best thing to do.

Kexec/kdump will depend on this if the previous kernel left the CPU
configured with a restrictive configuration.

If linux is booted at the highest implemented exception level el2_setup
will clear the enable bit, disabling MPAM.

Signed-off-by: James Morse <james.morse@arm.com>

Bug: 221768437
(cherry picked from commit fa0ff38f06b397d8a92d88eb8083c2c5a20ac87f
 git://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.16)
Change-Id: I2758f7f7b236d09a207e13d1165efb6887e8611a
Signed-off-by: Valentin Schneider <Valentin.Schneider@arm.com>
[bm: amended commit msg, dropped config option and switched to named labels]
Signed-off-by: Beata Michalska <beata.michalska@arm.com>
---
 arch/arm64/include/asm/el2_setup.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h
index bda918948471d..1bc198a5faade 100644
--- a/arch/arm64/include/asm/el2_setup.h
+++ b/arch/arm64/include/asm/el2_setup.h
@@ -149,6 +149,20 @@
 	msr	spsr_el2, x0
 .endm
 
+.macro __init_el2_mpam
+	/* Memory Partioning And Monitoring: disable EL2 traps */
+	mrs	x1, id_aa64pfr0_el1
+	ubfx	x0, x1, #ID_AA64PFR0_MPAM_SHIFT, #4
+	cbz	x0, .Lskip_mpam_\@		// skip if no MPAM
+	msr_s	SYS_MPAM0_EL1, xzr		// use the default partition..
+	msr_s	SYS_MPAM2_EL2, xzr		// ..and disable lower traps
+	msr_s	SYS_MPAM1_EL1, xzr
+	mrs_s	x0, SYS_MPAMIDR_EL1
+	tbz	x0, #17, .Lskip_mpam_\@		// skip if no MPAMHCR reg
+	msr_s	SYS_MPAMHCR_EL2, xzr		// clear TRAP_MPAMIDR_EL1 -> EL2
+.Lskip_mpam_\@:
+.endm
+
 /**
  * Initialize EL2 registers to sane values. This should be called early on all
  * cores that were booted in EL2. Note that everything gets initialised as
@@ -165,6 +179,7 @@
 	__init_el2_stage2
 	__init_el2_gicv3
 	__init_el2_hstr
+	__init_el2_mpam
 	__init_el2_nvhe_idregs
 	__init_el2_nvhe_cptr
 	__init_el2_nvhe_sve
-- 
GitLab


From 7ba447d0399b1e8c996bf417ca14fede25842c77 Mon Sep 17 00:00:00 2001
From: Victor Hsu <hsuvictor@google.com>
Date: Sun, 3 Apr 2022 00:36:41 +0800
Subject: [PATCH 4667/4878] ANDROID: Update the ABI representation

Leaf changes summary: 2 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 2 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

2 Added functions:

  [A] 'function void pci_msi_mask_irq(irq_data*)'
  [A] 'function void pci_msi_unmask_irq(irq_data*)'

Bug: 226026678
Signed-off-by: Victor Hsu <hsuvictor@google.com>
Change-Id: I53e8444b612c2852be35345385a0401df060a4e3
---
 android/abi_gki_aarch64.xml     | 169 ++++++++------------------------
 android/abi_gki_aarch64_generic |   4 +
 2 files changed, 46 insertions(+), 127 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 9810ebb3e4096..d055e4d3912db 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -2416,6 +2416,8 @@
       <elf-symbol name='pci_load_and_free_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6f8e089'/>
       <elf-symbol name='pci_load_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4aa4c6d'/>
       <elf-symbol name='pci_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9120aba5'/>
+      <elf-symbol name='pci_msi_mask_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38925c53'/>
+      <elf-symbol name='pci_msi_unmask_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5013c66'/>
       <elf-symbol name='pci_read_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e1bcb9d'/>
       <elf-symbol name='pci_read_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39814b73'/>
       <elf-symbol name='pci_read_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d7bcc72'/>
@@ -4324,7 +4326,7 @@
           <var-decl name='ops' type-id='76e6e22f' visibility='default' filepath='include/sound/soc-topology.h' line='68' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='' type-id='ac5ab670' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
+          <var-decl name='' type-id='ac5ab66f' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='448'>
           <var-decl name='private' type-id='eaa32e2f' visibility='default' filepath='include/sound/soc-topology.h' line='73' column='1'/>
@@ -13203,7 +13205,7 @@
           <var-decl name='seq_ctrl' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1097' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
+          <var-decl name='u' type-id='ac5ab665' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
         </data-member>
       </class-decl>
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@@ -54354,7 +54343,7 @@
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+      <class-decl name='wpan_dev' is-struct='yes' visibility='default' is-declaration-only='yes' id='8ae2fb1d'/>
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@@ -58983,11 +58914,6 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab664'>
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@@ -69281,7 +69199,7 @@
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+          <var-decl name='bytes' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
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@@ -69422,7 +69340,7 @@
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         </data-member>
@@ -69430,7 +69348,7 @@
           <var-decl name='value_ptr' type-id='8b97c2dc' visibility='default' filepath='include/uapi/sound/asound.h' line='1056' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66d'>
+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66c'>
         <data-member access='public'>
           <var-decl name='item' type-id='ee4e68c4' visibility='default' filepath='include/uapi/sound/asound.h' line='1059' column='1'/>
         </data-member>
@@ -69438,7 +69356,7 @@
           <var-decl name='item_ptr' type-id='807869d3' visibility='default' filepath='include/uapi/sound/asound.h' line='1060' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66e'>
+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66d'>
         <data-member access='public'>
           <var-decl name='data' type-id='b6d05418' visibility='default' filepath='include/uapi/sound/asound.h' line='1063' column='1'/>
         </data-member>
@@ -69446,7 +69364,7 @@
           <var-decl name='data_ptr' type-id='cf536864' visibility='default' filepath='include/uapi/sound/asound.h' line='1064' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66f'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66e'>
         <data-member access='public'>
           <var-decl name='text' type-id='cf87b76c' visibility='default' filepath='include/sound/info.h' line='69' column='1'/>
         </data-member>
@@ -69454,7 +69372,7 @@
           <var-decl name='ops' type-id='3245eba2' visibility='default' filepath='include/sound/info.h' line='70' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab670'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab66f'>
         <data-member access='public'>
           <var-decl name='control' type-id='8a84fb32' visibility='default' filepath='include/sound/soc-topology.h' line='70' column='1'/>
         </data-member>
@@ -69462,7 +69380,7 @@
           <var-decl name='widget' type-id='ca569b91' visibility='default' filepath='include/sound/soc-topology.h' line='71' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab671'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab670'>
         <data-member access='public'>
           <var-decl name='uuid' type-id='ebaaecd3' visibility='default' filepath='include/uapi/sound/asoc.h' line='223' column='1'/>
         </data-member>
@@ -69473,7 +69391,7 @@
           <var-decl name='string' type-id='e9564905' visibility='default' filepath='include/uapi/sound/asoc.h' line='225' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab672'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab671'>
         <data-member access='public'>
           <var-decl name='data' type-id='e84913bd' visibility='default' filepath='include/uapi/sound/asoc.h' line='237' column='1'/>
         </data-member>
@@ -69481,7 +69399,7 @@
           <var-decl name='array' type-id='591a7f7d' visibility='default' filepath='include/uapi/sound/asoc.h' line='238' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab673'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab672'>
         <data-member access='public'>
           <var-decl name='data' type-id='28645bde' visibility='default' filepath='include/uapi/sound/asoc.h' line='255' column='1'/>
         </data-member>
@@ -74844,7 +74762,6 @@
       <pointer-type-def type-id='850738b3' size-in-bits='64' id='ba09778f'/>
       <pointer-type-def type-id='e682e2f0' size-in-bits='64' id='ba0b1d2e'/>
       <pointer-type-def type-id='43489bca' size-in-bits='64' id='ba18e248'/>
-      <pointer-type-def type-id='d37aa9fa' size-in-bits='64' id='ba195270'/>
       <pointer-type-def type-id='d9609309' size-in-bits='64' id='ba1d878d'/>
       <pointer-type-def type-id='e82a9f1d' size-in-bits='64' id='ba21bbb1'/>
       <pointer-type-def type-id='636cc9ab' size-in-bits='64' id='ba21e62b'/>
@@ -75319,14 +75236,6 @@
       <pointer-type-def type-id='e26b47d7' size-in-bits='64' id='bb071cdb'/>
       <pointer-type-def type-id='a9ab8935' size-in-bits='64' id='bb0baf11'/>
       <pointer-type-def type-id='9bc083a1' size-in-bits='64' id='bb0f13d1'/>
-      <function-type size-in-bits='64' id='bb1a67f7'>
-        <parameter type-id='0fbf3cfd'/>
-        <parameter type-id='68a2d05b'/>
-        <parameter type-id='ba195270'/>
-        <parameter type-id='ba195270'/>
-        <parameter type-id='f0981eeb'/>
-        <return type-id='95e97e5e'/>
-      </function-type>
       <qualified-type-def type-id='32858f34' const='yes' id='bb21a21f'/>
       <pointer-type-def type-id='ecbaa04a' size-in-bits='64' id='bb28da1c'/>
       <pointer-type-def type-id='25b5e9dd' size-in-bits='64' id='bb2acc29'/>
@@ -84741,7 +84650,7 @@
           <var-decl name='behaviour' type-id='10fd9108' visibility='default' filepath='include/net/cfg80211.h' line='2739' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='param' type-id='ac5ab665' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
+          <var-decl name='param' type-id='ac5ab664' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='drm_bridge_state' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/drm/drm_atomic.h' line='1033' column='1' id='d24b8c9c'>
@@ -85210,7 +85119,6 @@
       <pointer-type-def type-id='0ad12489' size-in-bits='64' id='d3769ffd'/>
       <pointer-type-def type-id='4dedc1bb' size-in-bits='64' id='d379869f'/>
       <pointer-type-def type-id='08dd4249' size-in-bits='64' id='d37a2705'/>
-      <qualified-type-def type-id='57d8dd3d' const='yes' id='d37aa9fa'/>
       <pointer-type-def type-id='7e8ddfae' size-in-bits='64' id='d3807eb0'/>
       <function-type size-in-bits='64' id='d385bfac'>
         <parameter type-id='b9af02c3'/>
@@ -96195,7 +96103,7 @@
           <var-decl name='category' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1158' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='8'>
-          <var-decl name='u' type-id='ac5ab667' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
+          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403c'>
@@ -105278,7 +105186,6 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/fdtable.h' line='33' column='1'/>
         </data-member>
       </class-decl>
-      <qualified-type-def type-id='95fcbc94' const='yes' id='ff37489f'/>
       <class-decl name='timerqueue_head' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/timerqueue.h' line='14' column='1' id='ff3c7f20'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='rb_root' type-id='6fe1603d' visibility='default' filepath='include/linux/timerqueue.h' line='15' column='1'/>
@@ -118484,6 +118391,14 @@
         <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci-driver.c' line='224' column='1'/>
         <return type-id='92fc8aa5'/>
       </function-decl>
+      <function-decl name='pci_msi_mask_irq' mangled-name='pci_msi_mask_irq' filepath='drivers/pci/msi.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_msi_mask_irq'>
+        <parameter type-id='1c475548' name='data' filepath='drivers/pci/msi.c' line='224' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='pci_msi_unmask_irq' mangled-name='pci_msi_unmask_irq' filepath='drivers/pci/msi.c' line='234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_msi_unmask_irq'>
+        <parameter type-id='1c475548' name='data' filepath='drivers/pci/msi.c' line='234' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
       <function-decl name='pci_read_config_byte' mangled-name='pci_read_config_byte' filepath='drivers/pci/access.c' line='523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_read_config_byte'>
         <parameter type-id='947f31e6' name='dev' filepath='drivers/pci/access.c' line='523' column='1'/>
         <parameter type-id='95e97e5e' name='where' filepath='drivers/pci/access.c' line='523' column='1'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 4d1614df5ecdf..1388ae9831dcb 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -568,6 +568,7 @@
   dma_fence_remove_callback
   dma_fence_signal
   dma_fence_signal_locked
+  dma_fence_wait_timeout
   dma_free_attrs
   dma_free_noncoherent
   dma_get_sgtable_attrs
@@ -1046,6 +1047,7 @@
   input_mt_destroy_slots
   input_mt_init_slots
   input_mt_report_slot_state
+  input_mt_sync_frame
   input_open_device
   input_register_device
   input_register_handle
@@ -1477,6 +1479,8 @@
   pci_irq_vector
   pci_load_and_free_saved_state
   pci_load_saved_state
+  pci_msi_mask_irq
+  pci_msi_unmask_irq
   pci_read_config_dword
   pci_read_config_word
   __pci_register_driver
-- 
GitLab


From fdf0178dba855bae6fd60f0b6ae3448a9d7cb5d9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 8 Jan 2022 15:06:57 +0100
Subject: [PATCH 4668/4878] UPSTREAM: module.h: allow #define strings to work
 with MODULE_IMPORT_NS

The MODULE_IMPORT_NS() macro does not allow defined strings to work
properly with it, so add a layer of indirection to allow this to happen.

Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
(cherry picked from commit ca321ec74322e3c49552fc1ffc80b42d0dbf1a84)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibd64ba139912ea10e81ac22490831129b23a31e1
---
 include/linux/module.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/module.h b/include/linux/module.h
index 4fa2f7de56e61..c5c3ce08f6466 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -293,7 +293,8 @@ extern typeof(name) __mod_##type##__##name##_device_table		\
  * files require multiple MODULE_FIRMWARE() specifiers */
 #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
 
-#define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
+#define _MODULE_IMPORT_NS(ns)	MODULE_INFO(import_ns, #ns)
+#define MODULE_IMPORT_NS(ns)	_MODULE_IMPORT_NS(ns)
 
 struct notifier_block;
 
-- 
GitLab


From 21c7e202ac12e75ee5edc09e8a11eb7ea53cffb0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 8 Jan 2022 14:27:51 +0100
Subject: [PATCH 4669/4878] FROMLIST: export: fix string handling of namespace
 in EXPORT_SYMBOL_NS

Commit c3a6cf19e695 ("export: avoid code duplication in
include/linux/export.h") broke the ability for a defined string to be
used as a namespace value.  Fix this up by adding another layer of
indirection to preserve the previous functionality.

Fixes: c3a6cf19e695 ("export: avoid code duplication in include/linux/export.h")
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220108140415.3360088-1-gregkh@linuxfoundation.org
Bug: 210074446
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie43aa24f64b55cd1d70161c906b0ef32610430aa
---
 include/linux/export.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/export.h b/include/linux/export.h
index 8889809924156..3b25f680180fa 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -190,8 +190,10 @@ struct kernel_symbol {
 #define EXPORT_SYMBOL(sym)		_EXPORT_SYMBOL(sym, "")
 #define EXPORT_SYMBOL_GPL(sym)		_EXPORT_SYMBOL(sym, "_gpl")
 #define EXPORT_SYMBOL_GPL_FUTURE(sym)	_EXPORT_SYMBOL(sym, "_gpl_future")
-#define EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL(sym, "", #ns)
-#define EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL(sym, "_gpl", #ns)
+#define _EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL(sym, "", #ns)
+#define _EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL(sym, "_gpl", #ns)
+#define EXPORT_SYMBOL_NS(sym, ns)	_EXPORT_SYMBOL_NS(sym, ns)
+#define EXPORT_SYMBOL_NS_GPL(sym, ns)	_EXPORT_SYMBOL_NS_GPL(sym, ns)
 
 #ifdef CONFIG_UNUSED_SYMBOLS
 #define EXPORT_UNUSED_SYMBOL(sym)	_EXPORT_SYMBOL(sym, "_unused")
-- 
GitLab


From 176c157bbeb7a6d1ed2a2aec13321aa5b1f07da5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Thu, 2 Jul 2020 12:51:03 +0200
Subject: [PATCH 4670/4878] ANDROID: GKI: set vfs-only exports into their own
 namespace

We have namespaces, so use them for all vfs-exported namespaces so that
filesystems can use them, but not anything else.

Some in-kernel drivers that do direct filesystem accesses (because they
serve up files) are also allowed access to these symbols to keep 'make
allmodconfig' builds working properly, but it is not needed for Android
kernel images.

Bug: 157965270
Bug: 210074446
Cc: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iaf6140baf3a18a516ab2d5c3966235c42f3f70de
---
 drivers/mtd/nand/raw/nandsim.c               |  1 +
 drivers/mtd/ubi/build.c                      |  1 +
 drivers/nvme/target/core.c                   |  1 +
 drivers/target/target_core_configfs.c        |  1 +
 drivers/target/target_core_file.c            |  1 +
 drivers/usb/gadget/function/f_mass_storage.c |  1 +
 drivers/usb/gadget/function/f_uac1_legacy.c  |  1 +
 drivers/usb/gadget/function/storage_common.c |  1 +
 fs/9p/v9fs.c                                 |  1 +
 fs/Makefile                                  |  2 ++
 fs/adfs/super.c                              |  1 +
 fs/affs/super.c                              |  1 +
 fs/afs/main.c                                |  1 +
 fs/attr.c                                    |  6 ++--
 fs/autofs/init.c                             |  1 +
 fs/bad_inode.c                               |  4 +--
 fs/befs/linuxvfs.c                           |  1 +
 fs/bfs/inode.c                               |  1 +
 fs/binfmt_misc.c                             |  1 +
 fs/block_dev.c                               |  4 +--
 fs/btrfs/super.c                             |  1 +
 fs/buffer.c                                  | 34 +++++++++---------
 fs/cachefiles/main.c                         |  1 +
 fs/ceph/super.c                              |  1 +
 fs/cifs/cifsfs.c                             |  1 +
 fs/coda/psdev.c                              |  1 +
 fs/cramfs/inode.c                            |  1 +
 fs/dcache.c                                  |  6 ++--
 fs/direct-io.c                               |  2 +-
 fs/ecryptfs/main.c                           |  1 +
 fs/efivarfs/super.c                          |  1 +
 fs/efs/inode.c                               |  1 +
 fs/erofs/super.c                             |  1 +
 fs/exfat/super.c                             |  1 +
 fs/ext2/super.c                              |  1 +
 fs/ext4/super.c                              |  1 +
 fs/f2fs/super.c                              |  1 +
 fs/fat/inode.c                               |  1 +
 fs/fat/namei_msdos.c                         |  1 +
 fs/fat/namei_vfat.c                          |  1 +
 fs/file.c                                    |  2 +-
 fs/freevxfs/vxfs_super.c                     |  1 +
 fs/fs-writeback.c                            |  8 ++---
 fs/fuse/inode.c                              |  1 +
 fs/gfs2/main.c                               |  1 +
 fs/hfs/super.c                               |  1 +
 fs/hfsplus/super.c                           |  1 +
 fs/hpfs/super.c                              |  1 +
 fs/incfs/main.c                              |  1 +
 fs/inode.c                                   | 36 ++++++++++----------
 fs/ioctl.c                                   |  4 +--
 fs/isofs/inode.c                             |  1 +
 fs/jbd2/journal.c                            |  1 +
 fs/jffs2/super.c                             |  1 +
 fs/jfs/super.c                               |  1 +
 fs/libfs.c                                   |  2 +-
 fs/minix/inode.c                             |  1 +
 fs/mpage.c                                   |  4 +--
 fs/namei.c                                   | 14 ++++----
 fs/namespace.c                               |  4 +--
 fs/nfs/inode.c                               |  1 +
 fs/nfs/nfs4super.c                           |  1 +
 fs/nfsd/nfsctl.c                             |  1 +
 fs/nilfs2/super.c                            |  1 +
 fs/nls/nls_base.c                            |  6 ++--
 fs/nls/nls_euc-jp.c                          |  1 +
 fs/nls/nls_koi8-ru.c                         |  1 +
 fs/ntfs/super.c                              |  1 +
 fs/ocfs2/dlmfs/dlmfs.c                       |  1 +
 fs/ocfs2/super.c                             |  1 +
 fs/omfs/inode.c                              |  1 +
 fs/open.c                                    |  4 +--
 fs/orangefs/orangefs-mod.c                   |  1 +
 fs/overlayfs/super.c                         |  1 +
 fs/qnx4/inode.c                              |  1 +
 fs/qnx6/inode.c                              |  1 +
 fs/read_write.c                              |  4 +--
 fs/reiserfs/super.c                          |  1 +
 fs/romfs/super.c                             |  1 +
 fs/splice.c                                  |  4 +--
 fs/squashfs/super.c                          |  1 +
 fs/stat.c                                    |  2 +-
 fs/super.c                                   |  4 +--
 fs/sync.c                                    |  2 +-
 fs/sysv/super.c                              |  1 +
 fs/ubifs/super.c                             |  1 +
 fs/udf/super.c                               |  1 +
 fs/ufs/super.c                               |  1 +
 fs/vboxsf/super.c                            |  1 +
 fs/xattr.c                                   |  6 ++--
 fs/xfs/xfs_super.c                           |  1 +
 fs/zonefs/super.c                            |  1 +
 lib/test_lockup.c                            |  1 +
 net/9p/mod.c                                 |  1 +
 net/bpfilter/bpfilter_kern.c                 |  1 +
 net/sunrpc/sunrpc_syms.c                     |  1 +
 net/unix/af_unix.c                           |  1 +
 97 files changed, 157 insertions(+), 81 deletions(-)

diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c
index 9a9f1c24d8321..9e7cf9f360579 100644
--- a/drivers/mtd/nand/raw/nandsim.c
+++ b/drivers/mtd/nand/raw/nandsim.c
@@ -2453,5 +2453,6 @@ static void __exit ns_cleanup_module(void)
 module_exit(ns_cleanup_module);
 
 MODULE_LICENSE ("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 MODULE_AUTHOR ("Artem B. Bityuckiy");
 MODULE_DESCRIPTION ("The NAND flash simulator");
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index e85b04e9716b2..0597478129ffe 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -1476,3 +1476,4 @@ MODULE_VERSION(__stringify(UBI_VERSION));
 MODULE_DESCRIPTION("UBI - Unsorted Block Images");
 MODULE_AUTHOR("Artem Bityutskiy");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 9a8fa2e582d5b..f0f9d9007d49c 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -1602,3 +1602,4 @@ module_init(nvmet_init);
 module_exit(nvmet_exit);
 
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 56ae882fb7b39..1411f0cb40c51 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -3652,6 +3652,7 @@ static void __exit target_core_exit_configfs(void)
 MODULE_DESCRIPTION("Target_Core_Mod/ConfigFS");
 MODULE_AUTHOR("nab@Linux-iSCSI.org");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 
 module_init(target_core_init_configfs);
 module_exit(target_core_exit_configfs);
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 7143d03f0e027..cfa1bbef32e2e 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -956,6 +956,7 @@ static void __exit fileio_module_exit(void)
 MODULE_DESCRIPTION("TCM FILEIO subsystem plugin");
 MODULE_AUTHOR("nab@Linux-iSCSI.org");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 
 module_init(fileio_module_init);
 module_exit(fileio_module_exit);
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 73a28f8a38a7e..03db2d6b2dbae 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -3446,6 +3446,7 @@ static struct usb_function *fsg_alloc(struct usb_function_instance *fi)
 
 DECLARE_USB_FUNCTION_INIT(mass_storage, fsg_alloc_inst, fsg_alloc);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 MODULE_AUTHOR("Michal Nazarewicz");
 
 /************************* Module parameters *************************/
diff --git a/drivers/usb/gadget/function/f_uac1_legacy.c b/drivers/usb/gadget/function/f_uac1_legacy.c
index e2d7f69128a0e..8ffd477e79e11 100644
--- a/drivers/usb/gadget/function/f_uac1_legacy.c
+++ b/drivers/usb/gadget/function/f_uac1_legacy.c
@@ -1015,4 +1015,5 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi)
 
 DECLARE_USB_FUNCTION_INIT(uac1_legacy, f_audio_alloc_inst, f_audio_alloc);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 MODULE_AUTHOR("Bryan Wu");
diff --git a/drivers/usb/gadget/function/storage_common.c b/drivers/usb/gadget/function/storage_common.c
index f7e6c42558eb7..2451e45ada6ed 100644
--- a/drivers/usb/gadget/function/storage_common.c
+++ b/drivers/usb/gadget/function/storage_common.c
@@ -520,3 +520,4 @@ ssize_t fsg_store_inquiry_string(struct fsg_lun *curlun, const char *buf,
 EXPORT_SYMBOL_GPL(fsg_store_inquiry_string);
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 39def020a074b..6e3e65deb0b93 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -738,3 +738,4 @@ MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
 MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
 MODULE_AUTHOR("Ron Minnich <rminnich@lanl.gov>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/Makefile b/fs/Makefile
index 5dca3480ee83b..359c63fefa1b8 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -6,6 +6,8 @@
 # Rewritten to use lists instead of if-statements.
 # 
 
+subdir-ccflags-y += -DANDROID_GKI_VFS_EXPORT_ONLY=VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver
+
 obj-y :=	open.o read_write.o file_table.o super.o \
 		char_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
 		ioctl.o readdir.o select.o dcache.o inode.o \
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index bdbd26e571ed3..57044e5372906 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -492,3 +492,4 @@ static void __exit exit_adfs_fs(void)
 module_init(init_adfs_fs)
 module_exit(exit_adfs_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/affs/super.c b/fs/affs/super.c
index c6c2a513ec92d..2d2797ef7cfaf 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -676,6 +676,7 @@ static void __exit exit_affs_fs(void)
 
 MODULE_DESCRIPTION("Amiga filesystem support for Linux");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 module_init(init_affs_fs)
 module_exit(exit_affs_fs)
diff --git a/fs/afs/main.c b/fs/afs/main.c
index 179004b15566d..c6bd956454995 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -18,6 +18,7 @@
 MODULE_DESCRIPTION("AFS Client File System");
 MODULE_AUTHOR("Red Hat, Inc.");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 unsigned afs_debug;
 module_param_named(debug, afs_debug, uint, S_IWUSR | S_IRUGO);
diff --git a/fs/attr.c b/fs/attr.c
index b4bbdbd4c8ca0..d8c1f796d0e91 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -114,7 +114,7 @@ kill_priv:
 
 	return 0;
 }
-EXPORT_SYMBOL(setattr_prepare);
+EXPORT_SYMBOL_NS(setattr_prepare, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * inode_newsize_ok - may this inode be truncated to a given size
@@ -158,7 +158,7 @@ out_sig:
 out_big:
 	return -EFBIG;
 }
-EXPORT_SYMBOL(inode_newsize_ok);
+EXPORT_SYMBOL_NS(inode_newsize_ok, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * setattr_copy - copy simple metadata updates into the generic inode
@@ -345,4 +345,4 @@ int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **de
 
 	return error;
 }
-EXPORT_SYMBOL(notify_change);
+EXPORT_SYMBOL_NS(notify_change, ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/autofs/init.c b/fs/autofs/init.c
index d3f55e8743389..ba08261f4faa7 100644
--- a/fs/autofs/init.c
+++ b/fs/autofs/init.c
@@ -44,3 +44,4 @@ static void __exit exit_autofs_fs(void)
 module_init(init_autofs_fs)
 module_exit(exit_autofs_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 54f0ce4442720..b292859f5f85a 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -207,7 +207,7 @@ void make_bad_inode(struct inode *inode)
 	inode->i_opflags &= ~IOP_XATTR;
 	inode->i_fop = &bad_file_ops;	
 }
-EXPORT_SYMBOL(make_bad_inode);
+EXPORT_SYMBOL_NS(make_bad_inode, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * This tests whether an inode has been flagged as bad. The test uses
@@ -227,7 +227,7 @@ bool is_bad_inode(struct inode *inode)
 	return (inode->i_op == &bad_inode_ops);	
 }
 
-EXPORT_SYMBOL(is_bad_inode);
+EXPORT_SYMBOL_NS(is_bad_inode, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * iget_failed - Mark an under-construction inode as dead and release it
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index c1ba13d19024e..abb8f6bb7e395 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -34,6 +34,7 @@
 MODULE_DESCRIPTION("BeOS File System (BeFS) driver");
 MODULE_AUTHOR("Will Dyson");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /* The units the vfs expects inode->i_blocks to be in */
 #define VFS_BLOCK_SIZE 512
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index fd691e4815c56..293223cd4b375 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -22,6 +22,7 @@
 MODULE_AUTHOR("Tigran Aivazian <aivazian.tigran@gmail.com>");
 MODULE_DESCRIPTION("SCO UnixWare BFS filesystem for Linux");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 #undef DEBUG
 
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 11b5bf2419555..3e4791efdf77b 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -832,3 +832,4 @@ static void __exit exit_misc_binfmt(void)
 core_initcall(init_misc_binfmt);
 module_exit(exit_misc_binfmt);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 600ce43c1843e..aa0766b7be4f3 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -186,7 +186,7 @@ int sb_set_blocksize(struct super_block *sb, int size)
 	return sb->s_blocksize;
 }
 
-EXPORT_SYMBOL(sb_set_blocksize);
+EXPORT_SYMBOL_NS(sb_set_blocksize, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 int sb_min_blocksize(struct super_block *sb, int size)
 {
@@ -196,7 +196,7 @@ int sb_min_blocksize(struct super_block *sb, int size)
 	return sb_set_blocksize(sb, size);
 }
 
-EXPORT_SYMBOL(sb_min_blocksize);
+EXPORT_SYMBOL_NS(sb_min_blocksize, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static int
 blkdev_get_block(struct inode *inode, sector_t iblock,
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 2663485c17cb8..b5d2005d3415d 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -2597,6 +2597,7 @@ late_initcall(init_btrfs_fs);
 module_exit(exit_btrfs_fs)
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_SOFTDEP("pre: crc32c");
 MODULE_SOFTDEP("pre: xxhash64");
 MODULE_SOFTDEP("pre: sha256");
diff --git a/fs/buffer.c b/fs/buffer.c
index 63afd6ddb85f7..13dd0f71f7623 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -173,7 +173,7 @@ void end_buffer_write_sync(struct buffer_head *bh, int uptodate)
 	unlock_buffer(bh);
 	put_bh(bh);
 }
-EXPORT_SYMBOL(end_buffer_write_sync);
+EXPORT_SYMBOL_NS(end_buffer_write_sync, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Various filesystems appear to want __find_get_block to be non-blocking.
@@ -419,7 +419,7 @@ void mark_buffer_async_write(struct buffer_head *bh)
 {
 	mark_buffer_async_write_endio(bh, end_buffer_async_write);
 }
-EXPORT_SYMBOL(mark_buffer_async_write);
+EXPORT_SYMBOL_NS(mark_buffer_async_write, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 
 /*
@@ -674,7 +674,7 @@ int __set_page_dirty_buffers(struct page *page)
 
 	return newly_dirty;
 }
-EXPORT_SYMBOL(__set_page_dirty_buffers);
+EXPORT_SYMBOL_NS(__set_page_dirty_buffers, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Write out and wait upon a list of buffers.
@@ -1141,7 +1141,7 @@ void mark_buffer_dirty(struct buffer_head *bh)
 			__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
 	}
 }
-EXPORT_SYMBOL(mark_buffer_dirty);
+EXPORT_SYMBOL_NS(mark_buffer_dirty, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void mark_buffer_write_io_error(struct buffer_head *bh)
 {
@@ -1159,7 +1159,7 @@ void mark_buffer_write_io_error(struct buffer_head *bh)
 		errseq_set(&sb->s_wb_err, -EIO);
 	rcu_read_unlock();
 }
-EXPORT_SYMBOL(mark_buffer_write_io_error);
+EXPORT_SYMBOL_NS(mark_buffer_write_io_error, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Decrement a buffer_head's reference count.  If all buffers against a page
@@ -1176,7 +1176,7 @@ void __brelse(struct buffer_head * buf)
 	}
 	WARN(1, KERN_ERR "VFS: brelse: Trying to free free buffer\n");
 }
-EXPORT_SYMBOL(__brelse);
+EXPORT_SYMBOL_NS(__brelse, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * bforget() is like brelse(), except it discards any
@@ -1195,7 +1195,7 @@ void __bforget(struct buffer_head *bh)
 	}
 	__brelse(bh);
 }
-EXPORT_SYMBOL(__bforget);
+EXPORT_SYMBOL_NS(__bforget, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static struct buffer_head *__bread_slow(struct buffer_head *bh)
 {
@@ -1376,7 +1376,7 @@ void __breadahead(struct block_device *bdev, sector_t block, unsigned size)
 		brelse(bh);
 	}
 }
-EXPORT_SYMBOL(__breadahead);
+EXPORT_SYMBOL_NS(__breadahead, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void __breadahead_gfp(struct block_device *bdev, sector_t block, unsigned size,
 		      gfp_t gfp)
@@ -1411,7 +1411,7 @@ __bread_gfp(struct block_device *bdev, sector_t block,
 		bh = __bread_slow(bh);
 	return bh;
 }
-EXPORT_SYMBOL(__bread_gfp);
+EXPORT_SYMBOL_NS(__bread_gfp, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static void __invalidate_bh_lrus(struct bh_lru *b)
 {
@@ -1569,7 +1569,7 @@ void block_invalidatepage(struct page *page, unsigned int offset,
 out:
 	return;
 }
-EXPORT_SYMBOL(block_invalidatepage);
+EXPORT_SYMBOL_NS(block_invalidatepage, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 
 /*
@@ -1605,7 +1605,7 @@ void create_empty_buffers(struct page *page,
 	attach_page_private(page, head);
 	spin_unlock(&page->mapping->private_lock);
 }
-EXPORT_SYMBOL(create_empty_buffers);
+EXPORT_SYMBOL_NS(create_empty_buffers, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * clean_bdev_aliases: clean a range of buffers in block device
@@ -1679,7 +1679,7 @@ unlock_page:
 			break;
 	}
 }
-EXPORT_SYMBOL(clean_bdev_aliases);
+EXPORT_SYMBOL_NS(clean_bdev_aliases, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Size is a power-of-two in the range 512..PAGE_SIZE,
@@ -1937,7 +1937,7 @@ void page_zero_new_buffers(struct page *page, unsigned from, unsigned to)
 		bh = bh->b_this_page;
 	} while (bh != head);
 }
-EXPORT_SYMBOL(page_zero_new_buffers);
+EXPORT_SYMBOL_NS(page_zero_new_buffers, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static void
 iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,
@@ -2271,7 +2271,7 @@ int block_is_partially_uptodate(struct page *page, unsigned long from,
 
 	return ret;
 }
-EXPORT_SYMBOL(block_is_partially_uptodate);
+EXPORT_SYMBOL_NS(block_is_partially_uptodate, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Generic "read page" function for block devices that have the normal
@@ -3138,7 +3138,7 @@ void ll_rw_block(int op, int op_flags,  int nr, struct buffer_head *bhs[])
 		unlock_buffer(bh);
 	}
 }
-EXPORT_SYMBOL(ll_rw_block);
+EXPORT_SYMBOL_NS(ll_rw_block, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void write_dirty_buffer(struct buffer_head *bh, int op_flags)
 {
@@ -3185,13 +3185,13 @@ int __sync_dirty_buffer(struct buffer_head *bh, int op_flags)
 	}
 	return ret;
 }
-EXPORT_SYMBOL(__sync_dirty_buffer);
+EXPORT_SYMBOL_NS(__sync_dirty_buffer, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 int sync_dirty_buffer(struct buffer_head *bh)
 {
 	return __sync_dirty_buffer(bh, REQ_SYNC);
 }
-EXPORT_SYMBOL(sync_dirty_buffer);
+EXPORT_SYMBOL_NS(sync_dirty_buffer, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * try_to_free_buffers() checks if all the buffers on this particular page
diff --git a/fs/cachefiles/main.c b/fs/cachefiles/main.c
index ddf0cd58d60cc..0649e7e601341 100644
--- a/fs/cachefiles/main.c
+++ b/fs/cachefiles/main.c
@@ -28,6 +28,7 @@ MODULE_PARM_DESC(cachefiles_debug, "CacheFiles debugging mask");
 MODULE_DESCRIPTION("Mounted-filesystem based cache");
 MODULE_AUTHOR("Red Hat, Inc.");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 struct kmem_cache *cachefiles_object_jar;
 
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 08c8d34c98091..e0562c55384f6 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -1335,3 +1335,4 @@ MODULE_AUTHOR("Yehuda Sadeh <yehuda@hq.newdream.net>");
 MODULE_AUTHOR("Patience Warnick <patience@newdream.net>");
 MODULE_DESCRIPTION("Ceph filesystem for Linux");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index aa5a4d759ca23..8563e7b78c02d 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1693,6 +1693,7 @@ exit_cifs(void)
 
 MODULE_AUTHOR("Steve French");
 MODULE_LICENSE("GPL");	/* combination of LGPL + GPL source behaves as GPL */
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_DESCRIPTION
 	("VFS to access SMB3 servers e.g. Samba, Macs, Azure and Windows (and "
 	"also older servers complying with the SNIA CIFS Specification)");
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 240669f51eac3..897c7cb93f47c 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -388,6 +388,7 @@ MODULE_AUTHOR("Jan Harkes, Peter J. Braam");
 MODULE_DESCRIPTION("Coda Distributed File System VFS interface");
 MODULE_ALIAS_CHARDEV_MAJOR(CODA_PSDEV_MAJOR);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_VERSION("7.0");
 
 static int __init init_coda(void)
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 4b90cfd1ec360..6245470112a1d 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -1010,3 +1010,4 @@ static void __exit exit_cramfs_fs(void)
 module_init(init_cramfs_fs)
 module_exit(exit_cramfs_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/dcache.c b/fs/dcache.c
index ea0485861d937..cb588cee9669a 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2110,7 +2110,7 @@ struct dentry *d_obtain_alias(struct inode *inode)
 {
 	return __d_obtain_alias(inode, true);
 }
-EXPORT_SYMBOL(d_obtain_alias);
+EXPORT_SYMBOL_NS(d_obtain_alias, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * d_obtain_root - find or allocate a dentry for a given inode
@@ -2184,7 +2184,7 @@ struct dentry *d_add_ci(struct dentry *dentry, struct inode *inode,
 	}
 	return found;
 }
-EXPORT_SYMBOL(d_add_ci);
+EXPORT_SYMBOL_NS(d_add_ci, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 
 static inline bool d_same_name(const struct dentry *dentry,
@@ -3065,7 +3065,7 @@ out:
 	__d_add(dentry, inode);
 	return NULL;
 }
-EXPORT_SYMBOL(d_splice_alias);
+EXPORT_SYMBOL_NS(d_splice_alias, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Test whether new_dentry is a subdirectory of old_dentry.
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 4e9b306ca6bea..771017cf8fcc9 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1367,7 +1367,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
 				     end_io, submit_io, flags);
 }
 
-EXPORT_SYMBOL(__blockdev_direct_IO);
+EXPORT_SYMBOL_NS(__blockdev_direct_IO, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static __init int dio_init(void)
 {
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index b2f6a1937d239..eb12d38d000df 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -891,6 +891,7 @@ MODULE_AUTHOR("Michael A. Halcrow <mhalcrow@us.ibm.com>");
 MODULE_DESCRIPTION("eCryptfs");
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 module_init(ecryptfs_init)
 module_exit(ecryptfs_exit)
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 15880a68faadc..b62aefe3b4b82 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -272,6 +272,7 @@ static __exit void efivarfs_exit(void)
 MODULE_AUTHOR("Matthew Garrett, Jeremy Kerr");
 MODULE_DESCRIPTION("EFI Variable Filesystem");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_ALIAS_FS("efivarfs");
 
 module_init(efivarfs_init);
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
index 89e73a6f0d361..8c0ecaa62de2b 100644
--- a/fs/efs/inode.c
+++ b/fs/efs/inode.c
@@ -311,3 +311,4 @@ efs_block_t efs_map_block(struct inode *inode, efs_block_t block) {
 }  
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 205d3c431e2d9..46c80eab75274 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -963,3 +963,4 @@ module_exit(erofs_module_exit);
 MODULE_DESCRIPTION("Enhanced ROM File System");
 MODULE_AUTHOR("Gao Xiang, Chao Yu, Miao Xie, CONSUMER BG, HUAWEI Inc.");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index cd04c912f02e0..d3bf120e31e1d 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -836,5 +836,6 @@ module_exit(exit_exfat_fs);
 
 MODULE_ALIAS_FS("exfat");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_DESCRIPTION("exFAT filesystem support");
 MODULE_AUTHOR("Samsung Electronics Co., Ltd.");
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 09f1fe6769727..3b772568cccc7 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1650,5 +1650,6 @@ static void __exit exit_ext2_fs(void)
 MODULE_AUTHOR("Remy Card and others");
 MODULE_DESCRIPTION("Second Extended Filesystem");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 module_init(init_ext2_fs)
 module_exit(exit_ext2_fs)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c3cdfec63fdf7..bccf4f403bf8b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6758,6 +6758,7 @@ static void __exit ext4_exit_fs(void)
 MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others");
 MODULE_DESCRIPTION("Fourth Extended Filesystem");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_SOFTDEP("pre: crc32c");
 module_init(ext4_init_fs)
 module_exit(ext4_exit_fs)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 43bccd770a8a3..3d13fe053b308 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -4706,5 +4706,6 @@ module_exit(exit_f2fs_fs)
 MODULE_AUTHOR("Samsung Electronics's Praesto Team");
 MODULE_DESCRIPTION("Flash Friendly File System");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_SOFTDEP("pre: crc32");
 
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index bab9b202b4966..577c73a55c68d 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1979,3 +1979,4 @@ module_init(init_fat_fs)
 module_exit(exit_fat_fs)
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 9d062886fbc19..8376577ba0149 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -680,6 +680,7 @@ static void __exit exit_msdos_fs(void)
 }
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_AUTHOR("Werner Almesberger");
 MODULE_DESCRIPTION("MS-DOS filesystem support");
 
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 0cdd0fb9f742a..01fab05dc7a16 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -1077,6 +1077,7 @@ static void __exit exit_vfat_fs(void)
 }
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_DESCRIPTION("VFAT filesystem support");
 MODULE_AUTHOR("Gordon Chaffee");
 
diff --git a/fs/file.c b/fs/file.c
index 19f76d35a2b89..dcb7918b13742 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -670,7 +670,7 @@ int __close_fd(struct files_struct *files, unsigned fd)
 
 	return filp_close(file, files);
 }
-EXPORT_SYMBOL(__close_fd); /* for ksys_close() */
+EXPORT_SYMBOL_NS(__close_fd, ANDROID_GKI_VFS_EXPORT_ONLY); /* for ksys_close() */
 
 /**
  * last_fd - return last valid index into fd table
diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c
index 578a5062706ee..88fe3f4704097 100644
--- a/fs/freevxfs/vxfs_super.c
+++ b/fs/freevxfs/vxfs_super.c
@@ -52,6 +52,7 @@
 MODULE_AUTHOR("Christoph Hellwig, Krzysztof Blaszkowski");
 MODULE_DESCRIPTION("Veritas Filesystem (VxFS) driver");
 MODULE_LICENSE("Dual BSD/GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static struct kmem_cache *vxfs_inode_cachep;
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index a0869194ab739..d51354221fe77 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2338,7 +2338,7 @@ void __mark_inode_dirty(struct inode *inode, int flags)
 out_unlock_inode:
 	spin_unlock(&inode->i_lock);
 }
-EXPORT_SYMBOL(__mark_inode_dirty);
+EXPORT_SYMBOL_NS(__mark_inode_dirty, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * The @s_sync_lock is used to serialise concurrent sync operations
@@ -2504,7 +2504,7 @@ void try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
 	__writeback_inodes_sb_nr(sb, get_nr_dirty_pages(), reason, true);
 	up_read(&sb->s_umount);
 }
-EXPORT_SYMBOL(try_to_writeback_inodes_sb);
+EXPORT_SYMBOL_NS(try_to_writeback_inodes_sb, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * sync_inodes_sb	-	sync sb inode pages
@@ -2571,7 +2571,7 @@ int write_inode_now(struct inode *inode, int sync)
 	might_sleep();
 	return writeback_single_inode(inode, &wbc);
 }
-EXPORT_SYMBOL(write_inode_now);
+EXPORT_SYMBOL_NS(write_inode_now, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * sync_inode - write an inode and its pages to disk.
@@ -2608,4 +2608,4 @@ int sync_inode_metadata(struct inode *inode, int wait)
 
 	return sync_inode(inode, &wbc);
 }
-EXPORT_SYMBOL(sync_inode_metadata);
+EXPORT_SYMBOL_NS(sync_inode_metadata, ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index ee18e23215935..2e9af07ba431f 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -27,6 +27,7 @@
 MODULE_AUTHOR("Miklos Szeredi <miklos@szeredi.hu>");
 MODULE_DESCRIPTION("Filesystem in Userspace");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static struct kmem_cache *fuse_inode_cachep;
 struct list_head fuse_conn_list;
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index c7393ee9cf683..81925fd2985fd 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -260,6 +260,7 @@ static void __exit exit_gfs2_fs(void)
 MODULE_DESCRIPTION("Global File System");
 MODULE_AUTHOR("Red Hat, Inc.");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 module_init(init_gfs2_fs);
 module_exit(exit_gfs2_fs);
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 12d9bae393631..6432d65a08727 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -29,6 +29,7 @@
 static struct kmem_cache *hfs_inode_cachep;
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static int hfs_sync_fs(struct super_block *sb, int wait)
 {
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 807119ae5adf7..2b0031c6daeab 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -617,6 +617,7 @@ out:
 MODULE_AUTHOR("Brad Boyer");
 MODULE_DESCRIPTION("Extended Macintosh Filesystem");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static struct kmem_cache *hfsplus_inode_cachep;
 
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index a7dbfc8920227..d7598d70f329c 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -791,3 +791,4 @@ static void __exit exit_hpfs_fs(void)
 module_init(init_hpfs_fs)
 module_exit(exit_hpfs_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/incfs/main.c b/fs/incfs/main.c
index 23347acac8bf7..213faa5e91176 100644
--- a/fs/incfs/main.c
+++ b/fs/incfs/main.c
@@ -44,5 +44,6 @@ module_init(init_incfs_module);
 module_exit(cleanup_incfs_module);
 
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_AUTHOR("Eugene Zemtsov <ezemtsov@google.com>");
 MODULE_DESCRIPTION("Incremental File System");
diff --git a/fs/inode.c b/fs/inode.c
index 638d5d5bf42df..9246236bcdcaf 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -307,7 +307,7 @@ void drop_nlink(struct inode *inode)
 	if (!inode->i_nlink)
 		atomic_long_inc(&inode->i_sb->s_remove_count);
 }
-EXPORT_SYMBOL(drop_nlink);
+EXPORT_SYMBOL_NS(drop_nlink, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * clear_nlink - directly zero an inode's link count
@@ -346,7 +346,7 @@ void set_nlink(struct inode *inode, unsigned int nlink)
 		inode->__i_nlink = nlink;
 	}
 }
-EXPORT_SYMBOL(set_nlink);
+EXPORT_SYMBOL_NS(set_nlink, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * inc_nlink - directly increment an inode's link count
@@ -399,7 +399,7 @@ void inode_init_once(struct inode *inode)
 	__address_space_init_once(&inode->i_data);
 	i_size_ordered_init(inode);
 }
-EXPORT_SYMBOL(inode_init_once);
+EXPORT_SYMBOL_NS(inode_init_once, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static void init_once(void *foo)
 {
@@ -423,7 +423,7 @@ void ihold(struct inode *inode)
 {
 	WARN_ON(atomic_inc_return(&inode->i_count) < 2);
 }
-EXPORT_SYMBOL(ihold);
+EXPORT_SYMBOL_NS(ihold, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static void inode_lru_list_add(struct inode *inode)
 {
@@ -503,7 +503,7 @@ void __insert_inode_hash(struct inode *inode, unsigned long hashval)
 	spin_unlock(&inode->i_lock);
 	spin_unlock(&inode_hash_lock);
 }
-EXPORT_SYMBOL(__insert_inode_hash);
+EXPORT_SYMBOL_NS(__insert_inode_hash, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  *	__remove_inode_hash - remove an inode from the hash
@@ -519,7 +519,7 @@ void __remove_inode_hash(struct inode *inode)
 	spin_unlock(&inode->i_lock);
 	spin_unlock(&inode_hash_lock);
 }
-EXPORT_SYMBOL(__remove_inode_hash);
+EXPORT_SYMBOL_NS(__remove_inode_hash, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void clear_inode(struct inode *inode)
 {
@@ -539,7 +539,7 @@ void clear_inode(struct inode *inode)
 	/* don't need i_lock here, no concurrent mods to i_state */
 	inode->i_state = I_FREEING | I_CLEAR;
 }
-EXPORT_SYMBOL(clear_inode);
+EXPORT_SYMBOL_NS(clear_inode, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Free the inode passed in, removing it from the lists it is still connected
@@ -1001,7 +1001,7 @@ void unlock_new_inode(struct inode *inode)
 	wake_up_bit(&inode->i_state, __I_NEW);
 	spin_unlock(&inode->i_lock);
 }
-EXPORT_SYMBOL(unlock_new_inode);
+EXPORT_SYMBOL_NS(unlock_new_inode, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void discard_new_inode(struct inode *inode)
 {
@@ -1158,7 +1158,7 @@ struct inode *iget5_locked(struct super_block *sb, unsigned long hashval,
 	}
 	return inode;
 }
-EXPORT_SYMBOL(iget5_locked);
+EXPORT_SYMBOL_NS(iget5_locked, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * iget_locked - obtain an inode from a mounted file system
@@ -1290,7 +1290,7 @@ ino_t iunique(struct super_block *sb, ino_t max_reserved)
 
 	return res;
 }
-EXPORT_SYMBOL(iunique);
+EXPORT_SYMBOL_NS(iunique, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 struct inode *igrab(struct inode *inode)
 {
@@ -1373,7 +1373,7 @@ again:
 	}
 	return inode;
 }
-EXPORT_SYMBOL(ilookup5);
+EXPORT_SYMBOL_NS(ilookup5, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * ilookup - search for an inode in the inode cache
@@ -1853,7 +1853,7 @@ void touch_atime(const struct path *path)
 skip_update:
 	sb_end_write(inode->i_sb);
 }
-EXPORT_SYMBOL(touch_atime);
+EXPORT_SYMBOL_NS(touch_atime, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * The logic we want is
@@ -1949,7 +1949,7 @@ int file_remove_privs(struct file *file)
 
 	return error;
 }
-EXPORT_SYMBOL(file_remove_privs);
+EXPORT_SYMBOL_NS(file_remove_privs, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  *	file_update_time	-	update mtime and ctime time
@@ -2130,7 +2130,7 @@ void init_special_inode(struct inode *inode, umode_t mode, dev_t rdev)
 				  " inode %s:%lu\n", mode, inode->i_sb->s_id,
 				  inode->i_ino);
 }
-EXPORT_SYMBOL(init_special_inode);
+EXPORT_SYMBOL_NS(init_special_inode, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * inode_init_owner - Init uid,gid,mode for new inode according to posix standards
@@ -2156,7 +2156,7 @@ void inode_init_owner(struct inode *inode, const struct inode *dir,
 		inode->i_gid = current_fsgid();
 	inode->i_mode = mode;
 }
-EXPORT_SYMBOL(inode_init_owner);
+EXPORT_SYMBOL_NS(inode_init_owner, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * inode_owner_or_capable - check current task permissions to inode
@@ -2210,7 +2210,7 @@ void inode_dio_wait(struct inode *inode)
 	if (atomic_read(&inode->i_dio_count))
 		__inode_dio_wait(inode);
 }
-EXPORT_SYMBOL(inode_dio_wait);
+EXPORT_SYMBOL_NS(inode_dio_wait, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * inode_set_flags - atomically set some inode flags
@@ -2234,7 +2234,7 @@ void inode_set_flags(struct inode *inode, unsigned int flags,
 	WARN_ON_ONCE(flags & ~mask);
 	set_mask_bits(&inode->i_flags, mask, flags);
 }
-EXPORT_SYMBOL(inode_set_flags);
+EXPORT_SYMBOL_NS(inode_set_flags, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void inode_nohighmem(struct inode *inode)
 {
@@ -2271,7 +2271,7 @@ struct timespec64 timestamp_truncate(struct timespec64 t, struct inode *inode)
 		WARN(1, "invalid file time granularity: %u", gran);
 	return t;
 }
-EXPORT_SYMBOL(timestamp_truncate);
+EXPORT_SYMBOL_NS(timestamp_truncate, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * current_time - Return FS time
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 4e6cc0a7d69c9..32d8bd3f958b6 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -146,7 +146,7 @@ int fiemap_fill_next_extent(struct fiemap_extent_info *fieinfo, u64 logical,
 		return 1;
 	return (flags & FIEMAP_EXTENT_LAST) ? 1 : 0;
 }
-EXPORT_SYMBOL(fiemap_fill_next_extent);
+EXPORT_SYMBOL_NS(fiemap_fill_next_extent, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * fiemap_prep - check validity of requested flags for fiemap
@@ -191,7 +191,7 @@ int fiemap_prep(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		ret = filemap_write_and_wait(inode->i_mapping);
 	return ret;
 }
-EXPORT_SYMBOL(fiemap_prep);
+EXPORT_SYMBOL_NS(fiemap_prep, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static int ioctl_fiemap(struct file *filp, struct fiemap __user *ufiemap)
 {
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index f62b5a5015668..ecbc8ef0da176 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -1612,3 +1612,4 @@ static void __exit exit_iso9660_fs(void)
 module_init(init_iso9660_fs)
 module_exit(exit_iso9660_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index b748329bb0bab..099e4319851d8 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -3014,6 +3014,7 @@ static void __exit journal_exit(void)
 }
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 module_init(journal_init);
 module_exit(journal_exit);
 
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 81ca58c10b728..16dcc359fd359 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -439,3 +439,4 @@ MODULE_DESCRIPTION("The Journalling Flash File System, v2");
 MODULE_AUTHOR("Red Hat, Inc.");
 MODULE_LICENSE("GPL"); // Actually dual-licensed, but it doesn't matter for
 		       // the sake of this tag. It's Free Software.
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index b2dc4d1f9dcc5..8a02b9bdea19b 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -37,6 +37,7 @@
 MODULE_DESCRIPTION("The Journaled Filesystem (JFS)");
 MODULE_AUTHOR("Steve Best/Dave Kleikamp/Barry Arndt, IBM");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static struct kmem_cache *jfs_inode_cachep;
 
diff --git a/fs/libfs.c b/fs/libfs.c
index 1b4a215f7b749..40359a0b57e13 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -225,7 +225,7 @@ ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t
 {
 	return -EISDIR;
 }
-EXPORT_SYMBOL(generic_read_dir);
+EXPORT_SYMBOL_NS(generic_read_dir, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 const struct file_operations simple_dir_operations = {
 	.open		= dcache_dir_open,
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index 34f546404aa11..8a9d4a28290d1 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -719,4 +719,5 @@ static void __exit exit_minix_fs(void)
 module_init(init_minix_fs)
 module_exit(exit_minix_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
diff --git a/fs/mpage.c b/fs/mpage.c
index 00ac5c329b59f..55d2bfa062920 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -428,7 +428,7 @@ void mpage_readahead(struct readahead_control *rac, get_block_t get_block)
 	if (args.bio)
 		mpage_bio_submit(REQ_OP_READ, REQ_RAHEAD, args.bio);
 }
-EXPORT_SYMBOL(mpage_readahead);
+EXPORT_SYMBOL_NS(mpage_readahead, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * This isn't called much at all
@@ -446,7 +446,7 @@ int mpage_readpage(struct page *page, get_block_t get_block)
 		mpage_bio_submit(REQ_OP_READ, 0, args.bio);
 	return 0;
 }
-EXPORT_SYMBOL(mpage_readpage);
+EXPORT_SYMBOL_NS(mpage_readpage, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Writing is not so simple.
diff --git a/fs/namei.c b/fs/namei.c
index 1e6f5f6751a2b..d7b609a6f6dc9 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2533,7 +2533,7 @@ int kern_path(const char *name, unsigned int flags, struct path *path)
 	return filename_lookup(AT_FDCWD, getname_kernel(name),
 			       flags, path, NULL);
 }
-EXPORT_SYMBOL(kern_path);
+EXPORT_SYMBOL_NS(kern_path, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * vfs_path_lookup - lookup a file path relative to a dentry-vfsmount pair
@@ -2887,7 +2887,7 @@ int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 		fsnotify_create(dir, dentry);
 	return error;
 }
-EXPORT_SYMBOL(vfs_create);
+EXPORT_SYMBOL_NS(vfs_create, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 int vfs_mkobj(struct dentry *dentry, umode_t mode,
 		int (*f)(struct dentry *, umode_t, void *),
@@ -3727,7 +3727,7 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 		fsnotify_mkdir(dir, dentry);
 	return error;
 }
-EXPORT_SYMBOL(vfs_mkdir);
+EXPORT_SYMBOL_NS(vfs_mkdir, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static long do_mkdirat(int dfd, const char __user *pathname, umode_t mode)
 {
@@ -3801,7 +3801,7 @@ out:
 		d_delete_notify(dir, dentry);
 	return error;
 }
-EXPORT_SYMBOL(vfs_rmdir);
+EXPORT_SYMBOL_NS(vfs_rmdir, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 long do_rmdir(int dfd, struct filename *name)
 {
@@ -3924,7 +3924,7 @@ out:
 
 	return error;
 }
-EXPORT_SYMBOL(vfs_unlink);
+EXPORT_SYMBOL_NS(vfs_unlink, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Make sure that the actual truncation of the file will occur outside its
@@ -4159,7 +4159,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
 		fsnotify_link(dir, inode, new_dentry);
 	return error;
 }
-EXPORT_SYMBOL(vfs_link);
+EXPORT_SYMBOL_NS(vfs_link, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * Hardlinks are often used in delicate situations.  We avoid
@@ -4419,7 +4419,7 @@ out:
 
 	return error;
 }
-EXPORT_SYMBOL(vfs_rename);
+EXPORT_SYMBOL_NS(vfs_rename, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static int do_renameat2(int olddfd, const char __user *oldname, int newdfd,
 			const char __user *newname, unsigned int flags)
diff --git a/fs/namespace.c b/fs/namespace.c
index 046b084136c51..6d1f11a6b2904 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -415,7 +415,7 @@ int mnt_want_write_file(struct file *file)
 		sb_end_write(file_inode(file)->i_sb);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(mnt_want_write_file);
+EXPORT_SYMBOL_NS_GPL(mnt_want_write_file, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * __mnt_drop_write - give up write access to a mount
@@ -457,7 +457,7 @@ void mnt_drop_write_file(struct file *file)
 	__mnt_drop_write_file(file);
 	sb_end_write(file_inode(file)->i_sb);
 }
-EXPORT_SYMBOL(mnt_drop_write_file);
+EXPORT_SYMBOL_NS(mnt_drop_write_file, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static int mnt_make_readonly(struct mount *mnt)
 {
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index f27ecc2e490f2..f17ad75d0afd8 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -2337,6 +2337,7 @@ static void __exit exit_nfs_fs(void)
 /* Not quite true; I just maintain it */
 MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 module_param(enable_ino64, bool, 0644);
 
 module_init(init_nfs_fs)
diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index d09bcfd7db894..b422e8a09d251 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -309,6 +309,7 @@ static void __exit exit_nfs_v4(void)
 }
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 module_init(init_nfs_v4);
 module_exit(exit_nfs_v4);
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index dedec4771ecc2..2796ecfdfd5d0 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1584,5 +1584,6 @@ static void __exit exit_nfsd(void)
 
 MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 module_init(init_nfsd)
 module_exit(exit_nfsd)
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 4abd928b0bc83..ab1a5e8467f21 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -53,6 +53,7 @@ MODULE_AUTHOR("NTT Corp.");
 MODULE_DESCRIPTION("A New Implementation of the Log-structured Filesystem "
 		   "(NILFS)");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static struct kmem_cache *nilfs_inode_cachep;
 struct kmem_cache *nilfs_transaction_cachep;
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index 52ccd34b1e792..06c368ce3aa22 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -541,8 +541,8 @@ struct nls_table *load_nls_default(void)
 }
 
 EXPORT_SYMBOL(unregister_nls);
-EXPORT_SYMBOL(unload_nls);
-EXPORT_SYMBOL(load_nls);
-EXPORT_SYMBOL(load_nls_default);
+EXPORT_SYMBOL_NS(unload_nls, ANDROID_GKI_VFS_EXPORT_ONLY);
+EXPORT_SYMBOL_NS(load_nls, ANDROID_GKI_VFS_EXPORT_ONLY);
+EXPORT_SYMBOL_NS(load_nls_default, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 MODULE_LICENSE("Dual BSD/GPL");
diff --git a/fs/nls/nls_euc-jp.c b/fs/nls/nls_euc-jp.c
index 162b3f160353c..498b8a435d7e1 100644
--- a/fs/nls/nls_euc-jp.c
+++ b/fs/nls/nls_euc-jp.c
@@ -578,3 +578,4 @@ module_init(init_nls_euc_jp)
 module_exit(exit_nls_euc_jp)
 
 MODULE_LICENSE("Dual BSD/GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/nls/nls_koi8-ru.c b/fs/nls/nls_koi8-ru.c
index a80a741a8676d..99ceec9085ecd 100644
--- a/fs/nls/nls_koi8-ru.c
+++ b/fs/nls/nls_koi8-ru.c
@@ -80,3 +80,4 @@ module_init(init_nls_koi8_ru)
 module_exit(exit_nls_koi8_ru)
 
 MODULE_LICENSE("Dual BSD/GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index 0d7e948cb29c9..56edd625cf4d2 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -3186,6 +3186,7 @@ MODULE_AUTHOR("Anton Altaparmakov <anton@tuxera.com>");
 MODULE_DESCRIPTION("NTFS 1.2/3.x driver - Copyright (c) 2001-2014 Anton Altaparmakov and Tuxera Inc.");
 MODULE_VERSION(NTFS_VERSION);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 #ifdef DEBUG
 module_param(debug_msgs, bint, 0);
 MODULE_PARM_DESC(debug_msgs, "Enable debug messages.");
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index 583820ec63e2d..5b3a8681f87ef 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -615,6 +615,7 @@ static void __exit exit_dlmfs_fs(void)
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_DESCRIPTION("OCFS2 DLM-Filesystem");
 
 module_init(init_dlmfs_fs)
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 435f82892432c..f48369c021114 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -71,6 +71,7 @@ static struct dentry *ocfs2_debugfs_root;
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_DESCRIPTION("OCFS2 cluster file system");
 
 struct mount_options
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index ce93ccca86392..27143a2cd962a 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -20,6 +20,7 @@
 MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>");
 MODULE_DESCRIPTION("OMFS (ReplayTV/Karma) Filesystem for Linux");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 struct buffer_head *omfs_bread(struct super_block *sb, sector_t block)
 {
diff --git a/fs/open.c b/fs/open.c
index 78f32d483aefb..b9d55ca3763b6 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1158,7 +1158,7 @@ struct file *filp_open(const char *filename, int flags, umode_t mode)
 	}
 	return file;
 }
-EXPORT_SYMBOL(filp_open);
+EXPORT_SYMBOL_NS(filp_open, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /* ANDROID: Allow drivers to open only block files from kernel mode */
 struct file *filp_open_block(const char *filename, int flags, umode_t mode)
@@ -1390,7 +1390,7 @@ int generic_file_open(struct inode * inode, struct file * filp)
 	return 0;
 }
 
-EXPORT_SYMBOL(generic_file_open);
+EXPORT_SYMBOL_NS(generic_file_open, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * This is used by subsystems that don't want seekable
diff --git a/fs/orangefs/orangefs-mod.c b/fs/orangefs/orangefs-mod.c
index 74a3d6337ef43..a76a6ba8b3553 100644
--- a/fs/orangefs/orangefs-mod.c
+++ b/fs/orangefs/orangefs-mod.c
@@ -36,6 +36,7 @@ int orangefs_dcache_timeout_msecs = 50;
 int orangefs_getattr_timeout_msecs = 50;
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_AUTHOR("ORANGEFS Development Team");
 MODULE_DESCRIPTION("The Linux Kernel VFS interface to ORANGEFS");
 MODULE_PARM_DESC(module_parm_debug_mask, "debugging level (see orangefs-debug.h for values)");
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index e7f7163fae104..4a2ce2eeee887 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -20,6 +20,7 @@
 MODULE_AUTHOR("Miklos Szeredi <miklos@szeredi.hu>");
 MODULE_DESCRIPTION("Overlay filesystem");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 
 struct ovl_dir_cache;
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index 3fb7fc819b4fc..704fb7d09f0e2 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -420,4 +420,5 @@ static void __exit exit_qnx4_fs(void)
 module_init(init_qnx4_fs)
 module_exit(exit_qnx4_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
diff --git a/fs/qnx6/inode.c b/fs/qnx6/inode.c
index 61191f7bdf62d..ac771f0e02388 100644
--- a/fs/qnx6/inode.c
+++ b/fs/qnx6/inode.c
@@ -679,3 +679,4 @@ static void __exit exit_qnx6_fs(void)
 module_init(init_qnx6_fs)
 module_exit(exit_qnx6_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/read_write.c b/fs/read_write.c
index 75f764b434184..ae703cb905997 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -471,7 +471,7 @@ ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
 		return ret;
 	return __kernel_read(file, buf, count, pos);
 }
-EXPORT_SYMBOL(kernel_read);
+EXPORT_SYMBOL_NS(kernel_read, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
 {
@@ -580,7 +580,7 @@ ssize_t kernel_write(struct file *file, const void *buf, size_t count,
 	file_end_write(file);
 	return ret;
 }
-EXPORT_SYMBOL(kernel_write);
+EXPORT_SYMBOL_NS(kernel_write, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
 {
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 913f5af9bf248..d84c2f2df0b72 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2655,6 +2655,7 @@ MODULE_ALIAS_FS("reiserfs");
 MODULE_DESCRIPTION("ReiserFS journaled filesystem");
 MODULE_AUTHOR("Hans Reiser <reiser@namesys.com>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 
 module_init(init_reiserfs_fs);
 module_exit(exit_reiserfs_fs);
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 259f684d9236e..c335658c2e0f3 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -666,3 +666,4 @@ module_exit(exit_romfs_fs);
 MODULE_DESCRIPTION("Direct-MTD Capable RomFS");
 MODULE_AUTHOR("Red Hat, Inc.");
 MODULE_LICENSE("GPL"); /* Actually dual-licensed, but it doesn't matter for */
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/splice.c b/fs/splice.c
index 866d5c2367b23..036a47937c18e 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -326,7 +326,7 @@ ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,
 
 	return ret;
 }
-EXPORT_SYMBOL(generic_file_splice_read);
+EXPORT_SYMBOL_NS(generic_file_splice_read, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 const struct pipe_buf_operations default_pipe_buf_ops = {
 	.release	= generic_pipe_buf_release,
@@ -722,7 +722,7 @@ done:
 	return ret;
 }
 
-EXPORT_SYMBOL(iter_file_splice_write);
+EXPORT_SYMBOL_NS(iter_file_splice_write, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * generic_splice_sendpage - splice data from a pipe to a socket
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 88cc94be10765..83c48769f4140 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -498,3 +498,4 @@ module_exit(exit_squashfs_fs);
 MODULE_DESCRIPTION("squashfs 4.0, a compressed read-only filesystem");
 MODULE_AUTHOR("Phillip Lougher <phillip@squashfs.org.uk>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/stat.c b/fs/stat.c
index 1196af4d1ea03..c8a078f3acf89 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -49,7 +49,7 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
 	stat->blksize = i_blocksize(inode);
 	stat->blocks = inode->i_blocks;
 }
-EXPORT_SYMBOL(generic_fillattr);
+EXPORT_SYMBOL_NS(generic_fillattr, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /**
  * vfs_getattr_nosec - getattr without security checks
diff --git a/fs/super.c b/fs/super.c
index bae3fe80f852e..ae2b97dabe312 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1435,7 +1435,7 @@ error_bdev:
 error:
 	return ERR_PTR(error);
 }
-EXPORT_SYMBOL(mount_bdev);
+EXPORT_SYMBOL_NS(mount_bdev, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 void kill_block_super(struct super_block *sb)
 {
@@ -1449,7 +1449,7 @@ void kill_block_super(struct super_block *sb)
 	blkdev_put(bdev, mode | FMODE_EXCL);
 }
 
-EXPORT_SYMBOL(kill_block_super);
+EXPORT_SYMBOL_NS(kill_block_super, ANDROID_GKI_VFS_EXPORT_ONLY);
 #endif
 
 struct dentry *mount_nodev(struct file_system_type *fs_type,
diff --git a/fs/sync.c b/fs/sync.c
index 8e1c2272470fe..9bbaa61994fc3 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -66,7 +66,7 @@ int sync_filesystem(struct super_block *sb)
 		return ret;
 	return __sync_filesystem(sb, 1);
 }
-EXPORT_SYMBOL(sync_filesystem);
+EXPORT_SYMBOL_NS(sync_filesystem, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static void sync_inodes_one_sb(struct super_block *sb, void *arg)
 {
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index cc8e2ed155c84..e5383bff5dade 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -592,3 +592,4 @@ static void __exit exit_sysv_fs(void)
 module_init(init_sysv_fs)
 module_exit(exit_sysv_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 6a8f9efc2e2f0..54093d0a8f025 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -2475,6 +2475,7 @@ static void __exit ubifs_exit(void)
 module_exit(ubifs_exit);
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_VERSION(__stringify(UBIFS_VERSION));
 MODULE_AUTHOR("Artem Bityutskiy, Adrian Hunter");
 MODULE_DESCRIPTION("UBIFS - UBI File System");
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 3448098e54768..c31c5c44b9fe5 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -2545,5 +2545,6 @@ static unsigned int udf_count_free(struct super_block *sb)
 MODULE_AUTHOR("Ben Fennema");
 MODULE_DESCRIPTION("Universal Disk Format Filesystem");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 module_init(init_udf_fs)
 module_exit(exit_udf_fs)
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 983558b572c70..e0d7149f76ca3 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1542,3 +1542,4 @@ static void __exit exit_ufs_fs(void)
 module_init(init_ufs_fs)
 module_exit(exit_ufs_fs)
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/vboxsf/super.c b/fs/vboxsf/super.c
index c578e772cbd58..0d4a0408cbd7e 100644
--- a/fs/vboxsf/super.c
+++ b/fs/vboxsf/super.c
@@ -482,4 +482,5 @@ module_exit(vboxsf_fini);
 MODULE_DESCRIPTION("Oracle VM VirtualBox Module for Host File System Access");
 MODULE_AUTHOR("Oracle Corporation");
 MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 MODULE_ALIAS_FS("vboxsf");
diff --git a/fs/xattr.c b/fs/xattr.c
index d6bf5a7e2420e..f157f0b1bdfc2 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -291,7 +291,7 @@ retry_deleg:
 	}
 	return error;
 }
-EXPORT_SYMBOL_GPL(vfs_setxattr);
+EXPORT_SYMBOL_NS_GPL(vfs_setxattr, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 static ssize_t
 xattr_getsecurity(struct inode *inode, const char *name, void *value,
@@ -405,7 +405,7 @@ vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size)
 {
 	return __vfs_getxattr(dentry, dentry->d_inode, name, value, size, 0);
 }
-EXPORT_SYMBOL_GPL(vfs_getxattr);
+EXPORT_SYMBOL_NS_GPL(vfs_getxattr, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 ssize_t
 vfs_listxattr(struct dentry *dentry, char *list, size_t size)
@@ -425,7 +425,7 @@ vfs_listxattr(struct dentry *dentry, char *list, size_t size)
 	}
 	return error;
 }
-EXPORT_SYMBOL_GPL(vfs_listxattr);
+EXPORT_SYMBOL_NS_GPL(vfs_listxattr, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 int
 __vfs_removexattr(struct dentry *dentry, const char *name)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index e3e229e52512a..6a7724a3560ac 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -2224,3 +2224,4 @@ module_exit(exit_xfs_fs);
 MODULE_AUTHOR("Silicon Graphics, Inc.");
 MODULE_DESCRIPTION(XFS_VERSION_STRING " with " XFS_BUILD_OPTIONS " enabled");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index e60759d8bb5fb..0ed752c6ef25f 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -1800,5 +1800,6 @@ MODULE_AUTHOR("Damien Le Moal");
 MODULE_DESCRIPTION("Zone file system for zoned block devices");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_FS("zonefs");
+MODULE_IMPORT_NS(ANDROID_GKI_VFS_EXPORT_ONLY);
 module_init(zonefs_init);
 module_exit(zonefs_exit);
diff --git a/lib/test_lockup.c b/lib/test_lockup.c
index f1a020bcc763e..5359e2d1a2f24 100644
--- a/lib/test_lockup.c
+++ b/lib/test_lockup.c
@@ -595,5 +595,6 @@ static int __init test_lockup_init(void)
 module_init(test_lockup_init);
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 MODULE_AUTHOR("Konstantin Khlebnikov <khlebnikov@yandex-team.ru>");
 MODULE_DESCRIPTION("Test module to generate lockups");
diff --git a/net/9p/mod.c b/net/9p/mod.c
index 5126566850bd0..94cd2d132fd7f 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -189,4 +189,5 @@ MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
 MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
 MODULE_AUTHOR("Ron Minnich <rminnich@lanl.gov>");
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 MODULE_DESCRIPTION("Plan 9 Resource Sharing Support (9P2000)");
diff --git a/net/bpfilter/bpfilter_kern.c b/net/bpfilter/bpfilter_kern.c
index 51a941b56ec3a..4dfcd0d7ff3f7 100644
--- a/net/bpfilter/bpfilter_kern.c
+++ b/net/bpfilter/bpfilter_kern.c
@@ -134,3 +134,4 @@ static void __exit fini_umh(void)
 module_init(load_umh);
 module_exit(fini_umh);
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 236fadc4a4399..6c320623cdcd7 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -139,5 +139,6 @@ cleanup_sunrpc(void)
 	rcu_barrier(); /* Wait for completion of call_rcu()'s */
 }
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
 module_exit(cleanup_sunrpc);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index b7edca89e0ba9..fa99fe5bcf6ce 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -3008,4 +3008,5 @@ fs_initcall(af_unix_init);
 module_exit(af_unix_exit);
 
 MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 MODULE_ALIAS_NETPROTO(PF_UNIX);
-- 
GitLab


From 7cea3ceefb452c16757a9a83ab876f789d7077c7 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Thu, 31 Mar 2022 10:17:23 +0100
Subject: [PATCH 4671/4878] ANDROID: KVM: arm64: Make the use of host or shadow
 vcpu less error prone

It isn't always obvious what vcpu (host or shadow) should be used
in which context, nor whether the provided vcpu is valid or not.

To make this less error prone, provide a helper that will always
return a vcpu in the HYP address space as well as the corresponding
shadow state if we're in protected mode. If the host-provided vcpu
doesn't match the loaded vcpu, NULL is returned for both pointers.

In non-protected mode, no state is provided, of course, but the vcpu
is converted to its HYP pointer.

Bug: 227292021
Bug: 227768863
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Marc Zyngier <mzyngier@google.com>
Change-Id: Idcfc4e042ff05d97ae52f7991666935c1c570f10
---
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 139 ++++++++++++++++++-----------
 1 file changed, 88 insertions(+), 51 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index bd84430e9fb3d..49345929af0d2 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -696,21 +696,63 @@ static void handle___pkvm_vcpu_sync_state(struct kvm_cpu_context *host_ctxt)
 	}
 }
 
+static struct kvm_vcpu *__get_current_vcpu(struct kvm_vcpu *vcpu,
+					   struct pkvm_loaded_state **state)
+{
+	struct pkvm_loaded_state *sstate = NULL;
+
+	vcpu = kern_hyp_va(vcpu);
+
+	if (unlikely(is_protected_kvm_enabled())) {
+		sstate = this_cpu_ptr(&loaded_state);
+
+		if (!sstate || vcpu != sstate->vcpu->arch.pkvm.host_vcpu) {
+			sstate = NULL;
+			vcpu = NULL;
+		}
+	}
+
+	*state = sstate;
+	return vcpu;
+}
+
+#define get_current_vcpu(ctxt, regnr, statepp)				\
+	({								\
+		DECLARE_REG(struct kvm_vcpu *, __vcpu, ctxt, regnr);	\
+		__get_current_vcpu(__vcpu, statepp);			\
+	})
+
+#define get_current_vcpu_from_cpu_if(ctxt, regnr, statepp)		\
+	({								\
+		DECLARE_REG(struct vgic_v3_cpu_if *, cif, ctxt, regnr); \
+		struct kvm_vcpu *__vcpu;				\
+		__vcpu = container_of(cif,				\
+				      struct kvm_vcpu,			\
+				      arch.vgic_cpu.vgic_v3);		\
+									\
+		__get_current_vcpu(__vcpu, statepp);			\
+	})
+
 static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
+	struct pkvm_loaded_state *shadow_state;
+	struct kvm_vcpu *vcpu;
 	int ret;
 
-	if (unlikely(is_protected_kvm_enabled())) {
-		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+	vcpu = get_current_vcpu(host_ctxt, 1, &shadow_state);
+	if (!vcpu) {
+		cpu_reg(host_ctxt, 1) =  -EINVAL;
+		return;
+	}
 
-		flush_shadow_state(state);
+	if (unlikely(shadow_state)) {
+		flush_shadow_state(shadow_state);
 
-		ret = __kvm_vcpu_run(state->vcpu);
+		ret = __kvm_vcpu_run(shadow_state->vcpu);
 
-		sync_shadow_state(state, ret);
+		sync_shadow_state(shadow_state, ret);
 
-		if (state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
+		if (shadow_state->vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
 			/*
 			 * The guest has used the FP, trap all accesses
 			 * from the host (both FP and SVE).
@@ -722,7 +764,7 @@ static void handle___kvm_vcpu_run(struct kvm_cpu_context *host_ctxt)
 			sysreg_clear_set(cptr_el2, 0, reg);
 		}
 	} else {
-		ret = __kvm_vcpu_run(kern_hyp_va(vcpu));
+		ret = __kvm_vcpu_run(vcpu);
 	}
 
 	cpu_reg(host_ctxt, 1) =  ret;
@@ -759,20 +801,19 @@ out:
 
 static void handle___kvm_adjust_pc(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct kvm_vcpu *, vcpu, host_ctxt, 1);
-
-	vcpu = kern_hyp_va(vcpu);
+	struct pkvm_loaded_state *shadow_state;
+	struct kvm_vcpu *vcpu;
 
-	if (unlikely(is_protected_kvm_enabled())) {
-		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
+	vcpu = get_current_vcpu(host_ctxt, 1, &shadow_state);
+	if (!vcpu)
+		return;
 
-		/*
-		 * A shadow vcpu can never be updated from EL1, and we
-		 * must have a vcpu loaded when protected mode is
-		 * enabled.
-		 */
-		if (!state->vcpu || state->is_protected)
+	if (shadow_state) {
+		/* This only applies to non-protected VMs */
+		if (shadow_state->is_protected)
 			return;
+
+		vcpu = shadow_state->vcpu;
 	}
 
 	__kvm_adjust_pc(vcpu);
@@ -835,56 +876,50 @@ static void handle___kvm_get_mdcr_el2(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __kvm_get_mdcr_el2();
 }
 
-static struct vgic_v3_cpu_if *get_shadow_vgic_v3_cpu_if(struct vgic_v3_cpu_if *cpu_if)
-{
-	if (unlikely(is_protected_kvm_enabled())) {
-		struct pkvm_loaded_state *state = this_cpu_ptr(&loaded_state);
-		struct kvm_vcpu *host_vcpu;
-
-		if (!state->vcpu)
-			return NULL;
-
-		host_vcpu = state->vcpu->arch.pkvm.host_vcpu;
-
-		if (&host_vcpu->arch.vgic_cpu.vgic_v3 != cpu_if)
-			return NULL;
-	}
-
-	return cpu_if;
-}
-
 static void handle___vgic_v3_save_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct vgic_v3_cpu_if *, cpu_if, host_ctxt, 1);
-	struct vgic_v3_cpu_if *shadow_cpu_if;
-
-	cpu_if = kern_hyp_va(cpu_if);
-	shadow_cpu_if = get_shadow_vgic_v3_cpu_if(cpu_if);
+	struct pkvm_loaded_state *shadow_state;
+	struct kvm_vcpu *vcpu;
 
-	__vgic_v3_save_vmcr_aprs(shadow_cpu_if);
+	vcpu = get_current_vcpu_from_cpu_if(host_ctxt, 1, &shadow_state);
+	if (!vcpu)
+		return;
 
-	if (cpu_if != shadow_cpu_if) {
+	if (shadow_state) {
+		struct vgic_v3_cpu_if *shadow_cpu_if, *cpu_if;
 		int i;
 
+		shadow_cpu_if = &shadow_state->vcpu->arch.vgic_cpu.vgic_v3;
+		__vgic_v3_save_vmcr_aprs(shadow_cpu_if);
+
+		cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
+
 		cpu_if->vgic_vmcr = shadow_cpu_if->vgic_vmcr;
 		for (i = 0; i < ARRAY_SIZE(cpu_if->vgic_ap0r); i++) {
 			cpu_if->vgic_ap0r[i] = shadow_cpu_if->vgic_ap0r[i];
 			cpu_if->vgic_ap1r[i] = shadow_cpu_if->vgic_ap1r[i];
 		}
+	} else {
+		__vgic_v3_save_vmcr_aprs(&vcpu->arch.vgic_cpu.vgic_v3);
 	}
 }
 
 static void handle___vgic_v3_restore_vmcr_aprs(struct kvm_cpu_context *host_ctxt)
 {
-	DECLARE_REG(struct vgic_v3_cpu_if *, cpu_if, host_ctxt, 1);
-	struct vgic_v3_cpu_if *shadow_cpu_if;
+	struct pkvm_loaded_state *shadow_state;
+	struct kvm_vcpu *vcpu;
 
-	cpu_if = kern_hyp_va(cpu_if);
-	shadow_cpu_if = get_shadow_vgic_v3_cpu_if(cpu_if);
+	vcpu = get_current_vcpu_from_cpu_if(host_ctxt, 1, &shadow_state);
+	if (!vcpu)
+		return;
 
-	if (cpu_if != shadow_cpu_if) {
+	if (shadow_state) {
+		struct vgic_v3_cpu_if *shadow_cpu_if, *cpu_if;
 		int i;
 
+		shadow_cpu_if = &shadow_state->vcpu->arch.vgic_cpu.vgic_v3;
+		cpu_if = &vcpu->arch.vgic_cpu.vgic_v3;
+
 		shadow_cpu_if->vgic_vmcr = cpu_if->vgic_vmcr;
 		/* Should be a one-off */
 		shadow_cpu_if->vgic_sre = (ICC_SRE_EL1_DIB |
@@ -894,9 +929,11 @@ static void handle___vgic_v3_restore_vmcr_aprs(struct kvm_cpu_context *host_ctxt
 			shadow_cpu_if->vgic_ap0r[i] = cpu_if->vgic_ap0r[i];
 			shadow_cpu_if->vgic_ap1r[i] = cpu_if->vgic_ap1r[i];
 		}
-	}
 
-	__vgic_v3_restore_vmcr_aprs(shadow_cpu_if);
+		__vgic_v3_restore_vmcr_aprs(shadow_cpu_if);
+	} else {
+		__vgic_v3_restore_vmcr_aprs(&vcpu->arch.vgic_cpu.vgic_v3);
+	}
 }
 
 static void handle___pkvm_init(struct kvm_cpu_context *host_ctxt)
-- 
GitLab


From 34469ce1b40a27b503ea71563150695f6c7b7c06 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Mon, 4 Apr 2022 16:10:48 +0100
Subject: [PATCH 4672/4878] ANDROID: KVM: arm64: pkvm: Track the SVE state in
 the shadow vcpu

When dealing with a guest with SVE enabled, we don't populate
the shadow SVE state, nor pin the SVE state at S1 EL2.

Fix both issues in one go.

Bug: 227292021
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Marc Zyngier <mzyngier@google.com>
Change-Id: I88dc7e9c84e5970ec2466a0aa98ad4e3c94711a0
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 6e32f6d7188da..6c8b2f420476f 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -354,8 +354,19 @@ static void unpin_host_vcpus(struct shadow_vcpu_state *shadow_vcpus, int nr_vcpu
 
 	for (i = 0; i < nr_vcpus; i++) {
 		struct kvm_vcpu *host_vcpu = shadow_vcpus[i].vcpu.arch.pkvm.host_vcpu;
+		struct kvm_vcpu *shadow_vcpu = &shadow_vcpus[i].vcpu;
+		size_t sve_state_size;
+		void *sve_state;
 
 		hyp_unpin_shared_mem(host_vcpu, host_vcpu + 1);
+
+		if (!test_bit(KVM_ARM_VCPU_SVE, shadow_vcpu->arch.features))
+			continue;
+
+		sve_state = shadow_vcpu->arch.sve_state;
+		sve_state = kern_hyp_va(sve_state);
+		sve_state_size = vcpu_sve_state_size(shadow_vcpu);
+		hyp_unpin_shared_mem(sve_state, sve_state + sve_state_size);
 	}
 }
 
@@ -405,6 +416,27 @@ static int init_shadow_structs(struct kvm *kvm, struct kvm_shadow_vm *vm,
 		if (ret)
 			return ret;
 
+		if (test_bit(KVM_ARM_VCPU_SVE, shadow_vcpu->arch.features)) {
+			size_t sve_state_size;
+			void *sve_state;
+
+			shadow_vcpu->arch.sve_state = READ_ONCE(host_vcpu->arch.sve_state);
+			shadow_vcpu->arch.sve_max_vl = READ_ONCE(host_vcpu->arch.sve_max_vl);
+
+			sve_state = kern_hyp_va(shadow_vcpu->arch.sve_state);
+			sve_state_size = vcpu_sve_state_size(shadow_vcpu);
+
+			if (!shadow_vcpu->arch.sve_state || !sve_state_size ||
+			    hyp_pin_shared_mem(sve_state,
+					       sve_state + sve_state_size)) {
+				clear_bit(KVM_ARM_VCPU_SVE,
+					  shadow_vcpu->arch.features);
+				shadow_vcpu->arch.sve_state = NULL;
+				shadow_vcpu->arch.sve_max_vl = 0;
+				return -EINVAL;
+			}
+		}
+
 		if (vm->arch.pkvm.enabled)
 			pkvm_vcpu_init_traps(shadow_vcpu);
 		kvm_reset_pvm_sys_regs(shadow_vcpu);
-- 
GitLab


From 8e9a170748dd28ea3eb2fd85c9d299dcd6387d8b Mon Sep 17 00:00:00 2001
From: Yunfei Wang <yf.wang@mediatek.com>
Date: Thu, 10 Mar 2022 14:36:48 +0800
Subject: [PATCH 4673/4878] FROMGIT: iommu/iova: Improve 32-bit free space
 estimate

For various reasons based on the allocator behaviour and typical
use-cases at the time, when the max32_alloc_size optimisation was
introduced it seemed reasonable to couple the reset of the tracked
size to the update of cached32_node upon freeing a relevant IOVA.
However, since subsequent optimisations focused on helping genuine
32-bit devices make best use of even more limited address spaces, it
is now a lot more likely for cached32_node to be anywhere in a "full"
32-bit address space, and as such more likely for space to become
available from IOVAs below that node being freed.

At this point, the short-cut in __cached_rbnode_delete_update() really
doesn't hold up any more, and we need to fix the logic to reliably
provide the expected behaviour. We still want cached32_node to only move
upwards, but we should reset the allocation size if *any* 32-bit space
has become available.

Reported-by: Yunfei Wang <yf.wang@mediatek.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/033815732d83ca73b13c11485ac39336f15c3b40.1646318408.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

Bug: 223712131
(cherry picked from commit 5b61343b50590fb04a3f6be2cdc4868091757262
 https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git core)
Signed-off-by: Yunfei Wang <yf.wang@mediatek.com>
Change-Id: I5026411dd022c6ddea5c0e4da6e69c7b14162c3f
(cherry picked from commit ec48b1892eb5425c7cb9136f19b00ac14da7f0c2)
---
 drivers/iommu/iova.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 7e3f4d6c5e4c0..53994947ecf75 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -139,10 +139,11 @@ __cached_rbnode_delete_update(struct iova_domain *iovad, struct iova *free)
 	cached_iova = rb_entry(iovad->cached32_node, struct iova, node);
 	if (free == cached_iova ||
 	    (free->pfn_hi < iovad->dma_32bit_pfn &&
-	     free->pfn_lo >= cached_iova->pfn_lo)) {
+	     free->pfn_lo >= cached_iova->pfn_lo))
 		iovad->cached32_node = rb_next(&free->node);
+
+	if (free->pfn_lo < iovad->dma_32bit_pfn)
 		iovad->max32_alloc_size = iovad->dma_32bit_pfn;
-	}
 
 	cached_iova = rb_entry(iovad->cached_node, struct iova, node);
 	if (free->pfn_lo >= cached_iova->pfn_lo)
-- 
GitLab


From a45f3891ded167af52f3236db0efb76fcabf9d90 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Thu, 17 Mar 2022 15:35:58 -0700
Subject: [PATCH 4674/4878] ANDROID: mm: page_pinner refactoring

Currently, page_pinner code are too ugly since we missed refactoring
last time due to GKI deadline. Let's make it better this time before
GKI is freezing.

What this patch is cleaning are __reset_page_pinner which is used
for freeing page as well as putting pages depending on free parameter.
It makes code too ugly for readability PoV and hard to make further
changes so split it with each put and free functions.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I610ffc629eea5e996b7d55340b5589a3f49574d7
---
 include/linux/page_pinner.h |  30 +++----
 mm/gup.c                    |   4 +-
 mm/mlock.c                  |   2 +-
 mm/page_alloc.c             |   7 +-
 mm/page_pinner.c            | 175 ++++++++++++++++++++----------------
 5 files changed, 119 insertions(+), 99 deletions(-)

diff --git a/include/linux/page_pinner.h b/include/linux/page_pinner.h
index ba14d7636dc00..89578345b37eb 100644
--- a/include/linux/page_pinner.h
+++ b/include/linux/page_pinner.h
@@ -9,22 +9,23 @@ extern struct static_key_false page_pinner_inited;
 extern struct static_key_true failure_tracking;
 extern struct page_ext_operations page_pinner_ops;
 
-extern void __reset_page_pinner(struct page *page, unsigned int order, bool free);
+extern void __unset_page_pinner(struct page *page, unsigned int order);
+extern void __free_page_pinner(struct page *page, unsigned int order);
 extern void __set_page_pinner(struct page *page, unsigned int order);
 extern void __dump_page_pinner(struct page *page);
-void __page_pinner_migration_failed(struct page *page);
-void __page_pinner_mark_migration_failed_pages(struct list_head *page_list);
+void __page_pinner_failure_detect(struct page *page);
+void __page_pinner_put_page(struct page *page);
 
-static inline void reset_page_pinner(struct page *page, unsigned int order)
+static inline void unset_page_pinner(struct page *page, unsigned int order)
 {
 	if (static_branch_unlikely(&page_pinner_inited))
-		__reset_page_pinner(page, order, false);
+		__unset_page_pinner(page, order);
 }
 
 static inline void free_page_pinner(struct page *page, unsigned int order)
 {
 	if (static_branch_unlikely(&page_pinner_inited))
-		__reset_page_pinner(page, order, true);
+		__free_page_pinner(page, order);
 }
 
 static inline void set_page_pinner(struct page *page, unsigned int order)
@@ -44,7 +45,7 @@ static inline void page_pinner_put_page(struct page *page)
 	if (!static_branch_unlikely(&failure_tracking))
 		return;
 
-	__page_pinner_migration_failed(page);
+	__page_pinner_put_page(page);
 }
 
 static inline void page_pinner_failure_detect(struct page *page)
@@ -52,18 +53,10 @@ static inline void page_pinner_failure_detect(struct page *page)
 	if (!static_branch_unlikely(&failure_tracking))
 		return;
 
-	__page_pinner_migration_failed(page);
-}
-
-static inline void page_pinner_mark_migration_failed_pages(struct list_head *page_list)
-{
-	if (!static_branch_unlikely(&failure_tracking))
-		return;
-
-	__page_pinner_mark_migration_failed_pages(page_list);
+	__page_pinner_failure_detect(page);
 }
 #else
-static inline void reset_page_pinner(struct page *page, unsigned int order)
+static inline void unset_page_pinner(struct page *page, unsigned int order)
 {
 }
 static inline void free_page_pinner(struct page *page, unsigned int order)
@@ -81,8 +74,5 @@ static inline void page_pinner_put_page(struct page *page)
 static inline void page_pinner_failure_detect(struct page *page)
 {
 }
-static inline void page_pinner_mark_migration_failed_pages(struct list_head *page_list)
-{
-}
 #endif /* CONFIG_PAGE_PINNER */
 #endif /* __LINUX_PAGE_PINNER_H */
diff --git a/mm/gup.c b/mm/gup.c
index ececf00c7971b..9fd478f2f7d73 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -185,7 +185,7 @@ static void put_compound_head(struct page *page, int refs, unsigned int flags)
 	}
 
 	if (flags & FOLL_GET)
-		reset_page_pinner(page, compound_order(page));
+		unset_page_pinner(page, compound_order(page));
 	put_page_refs(page, refs);
 }
 
@@ -277,7 +277,7 @@ void put_user_page(struct page *page)
 {
 	struct page *head = compound_head(page);
 
-	reset_page_pinner(head, compound_order(head));
+	unset_page_pinner(head, compound_order(head));
 	put_page(page);
 }
 EXPORT_SYMBOL(put_user_page);
diff --git a/mm/mlock.c b/mm/mlock.c
index 225c6294fd25e..5cfe4a3cc7a7b 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -479,7 +479,7 @@ void munlock_vma_pages_range(struct vm_area_struct *vma,
 			 * sites correctly so just unattribute them to avoid
 			 * false positive at this moment.
 			 */
-			reset_page_pinner(page, compound_order(page));
+			unset_page_pinner(page, compound_order(page));
 			if (PageTransTail(page)) {
 				VM_BUG_ON_PAGE(PageMlocked(page), page);
 				put_page(page); /* follow_page_mask() */
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 629d1dcdd9e08..616849a7f8c89 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8715,7 +8715,12 @@ static int __alloc_contig_migrate_range(struct compact_control *cc,
 	if (ret < 0) {
 		if (ret == -EBUSY) {
 			alloc_contig_dump_pages(&cc->migratepages);
-			page_pinner_mark_migration_failed_pages(&cc->migratepages);
+			list_for_each_entry(page, &cc->migratepages, lru) {
+				/* The page will be freed by putback_movable_pages soon */
+				if (page_count(page) == 1)
+					continue;
+				page_pinner_failure_detect(page);
+			}
 		}
 
 		if (!list_empty(&cc->migratepages)) {
diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index 12d545c44a666..b0c24caab5bc0 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -15,7 +15,7 @@
 #include "internal.h"
 
 #define PAGE_PINNER_STACK_DEPTH 16
-#define LONGTERM_PIN_BUCKETS	4096
+#define PP_BUF_SIZE	4096
 
 struct page_pinner {
 	depot_stack_handle_t handle;
@@ -38,21 +38,21 @@ struct captured_pinner {
 	unsigned long flags;
 };
 
-struct longterm_pinner {
+struct page_pinner_buffer {
 	spinlock_t lock;
 	unsigned int index;
-	struct captured_pinner pinner[LONGTERM_PIN_BUCKETS];
+	struct captured_pinner buffer[PP_BUF_SIZE];
 };
 
-static struct longterm_pinner lt_pinner = {
-	.lock = __SPIN_LOCK_UNLOCKED(lt_pinner.lock),
+static struct page_pinner_buffer lt_buffer = {
+	.lock = __SPIN_LOCK_UNLOCKED(lt_buffer.lock),
 };
 
 static s64 threshold_usec = 300000;
 
 /* alloc_contig failed pinner */
-static struct longterm_pinner acf_pinner = {
-	.lock = __SPIN_LOCK_UNLOCKED(acf_pinner.lock),
+static struct page_pinner_buffer acf_buffer = {
+	.lock = __SPIN_LOCK_UNLOCKED(acf_buffer.lock),
 };
 
 static bool page_pinner_enabled;
@@ -128,12 +128,23 @@ static void capture_page_state(struct page *page,
 	record->mapcount = page_mapcount(page);
 }
 
+static void add_record(struct page_pinner_buffer *pp_buf,
+		       struct captured_pinner *record)
+{
+	unsigned long flags;
+	unsigned int idx;
+
+	spin_lock_irqsave(&pp_buf->lock, flags);
+	idx = pp_buf->index++;
+	pp_buf->index %= PP_BUF_SIZE;
+	pp_buf->buffer[idx] = *record;
+	spin_unlock_irqrestore(&pp_buf->lock, flags);
+}
+
 static void check_longterm_pin(struct page_pinner *page_pinner,
 			      struct page *page)
 {
 	s64 now, delta = 0;
-	unsigned long flags;
-	unsigned int idx;
 	struct captured_pinner record;
 
 	now = ktime_to_us(ktime_get_boottime());
@@ -149,14 +160,10 @@ static void check_longterm_pin(struct page_pinner *page_pinner,
 	record.elapsed = delta;
 	capture_page_state(page, &record);
 
-	spin_lock_irqsave(&lt_pinner.lock, flags);
-	idx = lt_pinner.index++;
-	lt_pinner.index %= LONGTERM_PIN_BUCKETS;
-	lt_pinner.pinner[idx] = record;
-	spin_unlock_irqrestore(&lt_pinner.lock, flags);
+	add_record(&lt_buffer, &record);
 }
 
-void __reset_page_pinner(struct page *page, unsigned int order, bool free)
+void __unset_page_pinner(struct page *page, unsigned int order)
 {
 	struct page_pinner *page_pinner;
 	struct page_ext *page_ext;
@@ -167,53 +174,74 @@ void __reset_page_pinner(struct page *page, unsigned int order, bool free)
 		return;
 
 	for (i = 0; i < (1 << order); i++) {
-		if (!test_bit(PAGE_EXT_GET, &page_ext->flags) &&
-			!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED,
-				  &page_ext->flags))
+		if (!test_bit(PAGE_EXT_GET, &page_ext->flags))
 			continue;
 
 		page_pinner = get_page_pinner(page_ext);
-		if (free) {
-			/* record page free call path */
-			__page_pinner_migration_failed(page);
-			atomic_set(&page_pinner->count, 0);
-			__clear_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
-		} else {
-			check_longterm_pin(page_pinner, page);
-		}
+		check_longterm_pin(page_pinner, page);
 		clear_bit(PAGE_EXT_GET, &page_ext->flags);
 		page_ext = page_ext_next(page_ext);
 	}
 }
 
-static inline void __set_page_pinner_handle(struct page *page,
-	struct page_ext *page_ext, depot_stack_handle_t handle,
-	unsigned int order)
+void __free_page_pinner(struct page *page, unsigned int order)
 {
 	struct page_pinner *page_pinner;
+	struct page_ext *page_ext;
 	int i;
-	s64 usec = ktime_to_us(ktime_get_boottime());
+
+	page_ext = lookup_page_ext(page);
+	if (unlikely(!page_ext))
+		return;
 
 	for (i = 0; i < (1 << order); i++) {
+		struct captured_pinner record;
+
+		if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags) &&
+		    !test_bit(PAGE_EXT_GET, &page_ext->flags))
+			continue;
+
 		page_pinner = get_page_pinner(page_ext);
-		page_pinner->handle = handle;
-		page_pinner->ts_usec = usec;
-		set_bit(PAGE_EXT_GET, &page_ext->flags);
-		atomic_inc(&page_pinner->count);
+		/* record page free call path */
+		page_ext = lookup_page_ext(page);
+		if (unlikely(!page_ext))
+			continue;
+
+		record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
+		record.ts_usec = ktime_to_us(ktime_get_boottime());
+		capture_page_state(page, &record);
+
+		add_record(&acf_buffer, &record);
+
+		atomic_set(&page_pinner->count, 0);
+		page_pinner->ts_usec = 0;
+		clear_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
+		clear_bit(PAGE_EXT_GET, &page_ext->flags);
 		page_ext = page_ext_next(page_ext);
 	}
 }
 
 noinline void __set_page_pinner(struct page *page, unsigned int order)
 {
+	struct page_pinner *page_pinner;
 	struct page_ext *page_ext = lookup_page_ext(page);
+	s64 usec = ktime_to_us(ktime_get_boottime());
+	int i;
+
 	depot_stack_handle_t handle;
 
 	if (unlikely(!page_ext))
 		return;
 
 	handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-	__set_page_pinner_handle(page, page_ext, handle, order);
+	for (i = 0; i < (1 << order); i++) {
+		page_pinner = get_page_pinner(page_ext);
+		page_pinner->handle = handle;
+		page_pinner->ts_usec = usec;
+		set_bit(PAGE_EXT_GET, &page_ext->flags);
+		atomic_inc(&page_pinner->count);
+		page_ext = page_ext_next(page_ext);
+	}
 }
 
 static ssize_t
@@ -325,47 +353,44 @@ void __dump_page_pinner(struct page *page)
 	}
 }
 
-void __page_pinner_migration_failed(struct page *page)
+void __page_pinner_failure_detect(struct page *page)
 {
 	struct page_ext *page_ext = lookup_page_ext(page);
 	struct captured_pinner record;
-	unsigned long flags;
-	unsigned int idx;
 
 	if (unlikely(!page_ext))
 		return;
 
-	if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
+	if (test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
 		return;
 
+	set_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
 	record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
 	record.ts_usec = ktime_to_us(ktime_get_boottime());
 	capture_page_state(page, &record);
 
-	spin_lock_irqsave(&acf_pinner.lock, flags);
-	idx = acf_pinner.index++;
-	acf_pinner.index %= LONGTERM_PIN_BUCKETS;
-	acf_pinner.pinner[idx] = record;
-	spin_unlock_irqrestore(&acf_pinner.lock, flags);
+	add_record(&acf_buffer, &record);
 }
-EXPORT_SYMBOL_GPL(__page_pinner_migration_failed);
+EXPORT_SYMBOL_GPL(__page_pinner_failure_detect);
 
-void __page_pinner_mark_migration_failed_pages(struct list_head *page_list)
+void __page_pinner_put_page(struct page *page)
 {
-	struct page *page;
-	struct page_ext *page_ext;
+	struct page_ext *page_ext = lookup_page_ext(page);
+	struct captured_pinner record;
 
-	list_for_each_entry(page, page_list, lru) {
-		/* The page will be freed by putback_movable_pages soon */
-		if (page_count(page) == 1)
-			continue;
-		page_ext = lookup_page_ext(page);
-		if (unlikely(!page_ext))
-			continue;
-		__set_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
-		__page_pinner_migration_failed(page);
-	}
+	if (unlikely(!page_ext))
+		return;
+
+	if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
+		return;
+
+	record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
+	record.ts_usec = ktime_to_us(ktime_get_boottime());
+	capture_page_state(page, &record);
+
+	add_record(&acf_buffer, &record);
 }
+EXPORT_SYMBOL_GPL(__page_pinner_put_page);
 
 static ssize_t
 read_longterm_page_pinner(struct file *file, char __user *buf, size_t count,
@@ -378,7 +403,7 @@ read_longterm_page_pinner(struct file *file, char __user *buf, size_t count,
 	if (!static_branch_unlikely(&page_pinner_inited))
 		return -EINVAL;
 
-	if (*ppos >= LONGTERM_PIN_BUCKETS)
+	if (*ppos >= PP_BUF_SIZE)
 		return 0;
 
 	i = *ppos;
@@ -388,11 +413,11 @@ read_longterm_page_pinner(struct file *file, char __user *buf, size_t count,
 	 * reading the records in the reverse order with newest one
 	 * being read first followed by older ones
 	 */
-	idx = (lt_pinner.index - 1 - i + LONGTERM_PIN_BUCKETS) %
-	       LONGTERM_PIN_BUCKETS;
-	spin_lock_irqsave(&lt_pinner.lock, flags);
-	record = lt_pinner.pinner[idx];
-	spin_unlock_irqrestore(&lt_pinner.lock, flags);
+	idx = (lt_buffer.index - 1 - i + PP_BUF_SIZE) %
+	       PP_BUF_SIZE;
+	spin_lock_irqsave(&lt_buffer.lock, flags);
+	record = lt_buffer.buffer[idx];
+	spin_unlock_irqrestore(&lt_buffer.lock, flags);
 	if (!record.handle)
 		return 0;
 
@@ -413,7 +438,7 @@ static ssize_t read_alloc_contig_failed(struct file *file, char __user *buf,
 	if (!static_branch_unlikely(&failure_tracking))
 		return -EINVAL;
 
-	if (*ppos >= LONGTERM_PIN_BUCKETS)
+	if (*ppos >= PP_BUF_SIZE)
 		return 0;
 
 	i = *ppos;
@@ -423,12 +448,12 @@ static ssize_t read_alloc_contig_failed(struct file *file, char __user *buf,
 	 * reading the records in the reverse order with newest one
 	 * being read first followed by older ones
 	 */
-	idx = (acf_pinner.index - 1 - i + LONGTERM_PIN_BUCKETS) %
-	       LONGTERM_PIN_BUCKETS;
+	idx = (acf_buffer.index - 1 - i + PP_BUF_SIZE) %
+	       PP_BUF_SIZE;
 
-	spin_lock_irqsave(&acf_pinner.lock, flags);
-	record = acf_pinner.pinner[idx];
-	spin_unlock_irqrestore(&acf_pinner.lock, flags);
+	spin_lock_irqsave(&acf_buffer.lock, flags);
+	record = acf_buffer.buffer[idx];
+	spin_unlock_irqrestore(&acf_buffer.lock, flags);
 	if (!record.handle)
 		return 0;
 
@@ -445,11 +470,11 @@ static int pp_threshold_set(void *data, unsigned long long val)
 
 	threshold_usec = (s64)val;
 
-	spin_lock_irqsave(&lt_pinner.lock, flags);
-	memset(lt_pinner.pinner, 0,
-	       sizeof(struct captured_pinner) * LONGTERM_PIN_BUCKETS);
-	lt_pinner.index = 0;
-	spin_unlock_irqrestore(&lt_pinner.lock, flags);
+	spin_lock_irqsave(&lt_buffer.lock, flags);
+	memset(lt_buffer.buffer, 0,
+	       sizeof(struct captured_pinner) * PP_BUF_SIZE);
+	lt_buffer.index = 0;
+	spin_unlock_irqrestore(&lt_buffer.lock, flags);
 	return 0;
 }
 
-- 
GitLab


From e17f903a9256dbec95d4e0355c67668a3493181b Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Thu, 17 Mar 2022 15:57:39 -0700
Subject: [PATCH 4675/4878] ANDROID: mm: page_pinner: change output format for
 alloc_contig_failed

Currently, output format is a little hard to parse how long the
page has been pinned since user need to figure out the timeline
from migration failure detection to put event. Sometimes, the log
buffer would be overflowed so we lost the migration failure event
timeline, even. This patch stores the page pinning time in kernel
side and keep the information whenever page was released. Thus,
user could understand the output easier and never lose the information.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I396f0c12438e0ff8a3497253b750a7e5bb342f57
---
 mm/page_pinner.c | 38 ++++++++++++++++++++++++++++++--------
 1 file changed, 30 insertions(+), 8 deletions(-)

diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index b0c24caab5bc0..3d812459de252 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -23,6 +23,12 @@ struct page_pinner {
 	atomic_t count;
 };
 
+enum pp_state {
+	PP_PUT,
+	PP_FREE,
+	PP_FAIL_DETECTED,
+};
+
 struct captured_pinner {
 	depot_stack_handle_t handle;
 	union {
@@ -36,6 +42,7 @@ struct captured_pinner {
 	int mapcount;
 	struct address_space *mapping;
 	unsigned long flags;
+	enum pp_state state;
 };
 
 struct page_pinner_buffer {
@@ -158,6 +165,7 @@ static void check_longterm_pin(struct page_pinner *page_pinner,
 
 	record.handle = page_pinner->handle;
 	record.elapsed = delta;
+	record.state = PP_PUT;
 	capture_page_state(page, &record);
 
 	add_record(&lt_buffer, &record);
@@ -180,6 +188,7 @@ void __unset_page_pinner(struct page *page, unsigned int order)
 		page_pinner = get_page_pinner(page_ext);
 		check_longterm_pin(page_pinner, page);
 		clear_bit(PAGE_EXT_GET, &page_ext->flags);
+		page_pinner->ts_usec = 0;
 		page_ext = page_ext_next(page_ext);
 	}
 }
@@ -209,6 +218,7 @@ void __free_page_pinner(struct page *page, unsigned int order)
 
 		record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
 		record.ts_usec = ktime_to_us(ktime_get_boottime());
+		record.state = PP_FREE;
 		capture_page_state(page, &record);
 
 		add_record(&acf_buffer, &record);
@@ -245,7 +255,7 @@ noinline void __set_page_pinner(struct page *page, unsigned int order)
 }
 
 static ssize_t
-print_page_pinner(bool longterm, char __user *buf, size_t count, struct captured_pinner *record)
+print_page_pinner(char __user *buf, size_t count, struct captured_pinner *record)
 {
 	int ret;
 	unsigned long *entries;
@@ -257,15 +267,17 @@ print_page_pinner(bool longterm, char __user *buf, size_t count, struct captured
 	if (!kbuf)
 		return -ENOMEM;
 
-	if (longterm) {
-		ret = snprintf(kbuf, count, "Page pinned for %lld us\n",
+	if (record->state == PP_PUT) {
+		ret = snprintf(kbuf, count, "At least, pinned for %lld us\n",
 			       record->elapsed);
 	} else {
 		s64 ts_usec = record->ts_usec;
 		unsigned long rem_usec = do_div(ts_usec, 1000000);
 
 		ret = snprintf(kbuf, count,
-			       "Page pinned ts [%5lu.%06lu]\n",
+			       "%s [%5lu.%06lu]\n",
+			       record->state == PP_FREE ? "Freed at" :
+							  "Failure detected at",
 			       (unsigned long)ts_usec, rem_usec);
 	}
 
@@ -356,7 +368,9 @@ void __dump_page_pinner(struct page *page)
 void __page_pinner_failure_detect(struct page *page)
 {
 	struct page_ext *page_ext = lookup_page_ext(page);
+	struct page_pinner *page_pinner;
 	struct captured_pinner record;
+	s64 now;
 
 	if (unlikely(!page_ext))
 		return;
@@ -364,9 +378,14 @@ void __page_pinner_failure_detect(struct page *page)
 	if (test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
 		return;
 
+	now = ktime_to_us(ktime_get_boottime());
+	page_pinner = get_page_pinner(page_ext);
+	if (!page_pinner->ts_usec)
+		page_pinner->ts_usec = now;
 	set_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
 	record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-	record.ts_usec = ktime_to_us(ktime_get_boottime());
+	record.ts_usec = now;
+	record.state = PP_FAIL_DETECTED;
 	capture_page_state(page, &record);
 
 	add_record(&acf_buffer, &record);
@@ -376,6 +395,7 @@ EXPORT_SYMBOL_GPL(__page_pinner_failure_detect);
 void __page_pinner_put_page(struct page *page)
 {
 	struct page_ext *page_ext = lookup_page_ext(page);
+	struct page_pinner *page_pinner;
 	struct captured_pinner record;
 
 	if (unlikely(!page_ext))
@@ -384,8 +404,10 @@ void __page_pinner_put_page(struct page *page)
 	if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
 		return;
 
+	page_pinner = get_page_pinner(page_ext);
 	record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-	record.ts_usec = ktime_to_us(ktime_get_boottime());
+	record.elapsed = ktime_to_us(ktime_get_boottime()) - page_pinner->ts_usec;
+	record.state = PP_PUT;
 	capture_page_state(page, &record);
 
 	add_record(&acf_buffer, &record);
@@ -421,7 +443,7 @@ read_longterm_page_pinner(struct file *file, char __user *buf, size_t count,
 	if (!record.handle)
 		return 0;
 
-	return print_page_pinner(true, buf, count, &record);
+	return print_page_pinner(buf, count, &record);
 }
 
 static const struct file_operations proc_longterm_pinner_operations = {
@@ -457,7 +479,7 @@ static ssize_t read_alloc_contig_failed(struct file *file, char __user *buf,
 	if (!record.handle)
 		return 0;
 
-	return print_page_pinner(false, buf, count, &record);
+	return print_page_pinner(buf, count, &record);
 }
 
 static const struct file_operations proc_alloc_contig_failed_operations = {
-- 
GitLab


From 5c70ecb399ace276ff300490937b2013e0ca5d48 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Tue, 29 Mar 2022 21:50:32 -0700
Subject: [PATCH 4676/4878] ANDROID: mm: page_pinner: remove longterm_pinner

From the experience, longterm_pinner is not worth maintaining
considering how much it churns MM. Just drop the feature and
we are good with alloc_contig_failed.

The visible effect from this patch is
  1. drop $debugfs/page_pinner/longterm_pinner
  2. drop put_user_page expoerted API
  3. rename alloc_contig_failed to buffer

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I68cc11db448260987a9e26b99647ecb55f571616
---
 fs/coredump.c               |   2 +-
 fs/exec.c                   |   2 +-
 fs/fuse/dev.c               |   6 +-
 include/linux/mm.h          |   1 -
 include/linux/page_ext.h    |   2 -
 include/linux/page_pinner.h |  20 -----
 kernel/futex.c              |   8 +-
 mm/gup.c                    |  33 +-------
 mm/ksm.c                    |  18 ++---
 mm/memory.c                 |   2 +-
 mm/migrate.c                |   2 +-
 mm/mlock.c                  |   8 --
 mm/page_pinner.c            | 153 ++----------------------------------
 13 files changed, 26 insertions(+), 231 deletions(-)

diff --git a/fs/coredump.c b/fs/coredump.c
index 4ab1c32db8125..c56a3bdce7cd4 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -900,7 +900,7 @@ int dump_user_range(struct coredump_params *cprm, unsigned long start,
 
 			stop = !dump_emit(cprm, kaddr, PAGE_SIZE);
 			kunmap(page);
-			put_user_page(page);
+			put_page(page);
 		} else {
 			stop = !dump_skip(cprm, PAGE_SIZE);
 		}
diff --git a/fs/exec.c b/fs/exec.c
index ec5ef10ce2dbb..35389eb9dc75c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -235,7 +235,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
 
 static void put_arg_page(struct page *page)
 {
-	put_user_page(page);
+	put_page(page);
 }
 
 static void free_arg_pages(struct linux_binprm *bprm)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 5a87d1247d82f..c3cd2b2c32764 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -693,11 +693,7 @@ static void fuse_copy_finish(struct fuse_copy_state *cs)
 			flush_dcache_page(cs->pg);
 			set_page_dirty_lock(cs->pg);
 		}
-		/*
-		 * The page could be GUP page(see iov_iter_get_pages in
-		 * fuse_copy_fill) so use put_user_page to release it.
-		 */
-		put_user_page(cs->pg);
+		put_page(cs->pg);
 	}
 	cs->pg = NULL;
 }
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 08326d776d4ae..ebd5520c826f6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1286,7 +1286,6 @@ static inline void put_page(struct page *page)
  */
 #define GUP_PIN_COUNTING_BIAS (1U << 10)
 
-void put_user_page(struct page *page);
 void unpin_user_page(struct page *page);
 void unpin_user_pages_dirty_lock(struct page **pages, unsigned long npages,
 				 bool make_dirty);
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index cd45c1927d903..874108d2c7ba4 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -20,8 +20,6 @@ enum page_ext_flags {
 	PAGE_EXT_OWNER,
 	PAGE_EXT_OWNER_ALLOCATED,
 #if defined(CONFIG_PAGE_PINNER)
-	/* page refcount was increased by GUP or follow_page(FOLL_GET) */
-	PAGE_EXT_GET,
 	/* page migration failed */
 	PAGE_EXT_PINNER_MIGRATION_FAILED,
 #endif
diff --git a/include/linux/page_pinner.h b/include/linux/page_pinner.h
index 89578345b37eb..10f7bdf4e3d4a 100644
--- a/include/linux/page_pinner.h
+++ b/include/linux/page_pinner.h
@@ -9,31 +9,17 @@ extern struct static_key_false page_pinner_inited;
 extern struct static_key_true failure_tracking;
 extern struct page_ext_operations page_pinner_ops;
 
-extern void __unset_page_pinner(struct page *page, unsigned int order);
 extern void __free_page_pinner(struct page *page, unsigned int order);
-extern void __set_page_pinner(struct page *page, unsigned int order);
 extern void __dump_page_pinner(struct page *page);
 void __page_pinner_failure_detect(struct page *page);
 void __page_pinner_put_page(struct page *page);
 
-static inline void unset_page_pinner(struct page *page, unsigned int order)
-{
-	if (static_branch_unlikely(&page_pinner_inited))
-		__unset_page_pinner(page, order);
-}
-
 static inline void free_page_pinner(struct page *page, unsigned int order)
 {
 	if (static_branch_unlikely(&page_pinner_inited))
 		__free_page_pinner(page, order);
 }
 
-static inline void set_page_pinner(struct page *page, unsigned int order)
-{
-	if (static_branch_unlikely(&page_pinner_inited))
-		__set_page_pinner(page, order);
-}
-
 static inline void dump_page_pinner(struct page *page)
 {
 	if (static_branch_unlikely(&page_pinner_inited))
@@ -56,15 +42,9 @@ static inline void page_pinner_failure_detect(struct page *page)
 	__page_pinner_failure_detect(page);
 }
 #else
-static inline void unset_page_pinner(struct page *page, unsigned int order)
-{
-}
 static inline void free_page_pinner(struct page *page, unsigned int order)
 {
 }
-static inline void set_page_pinner(struct page *page, unsigned int order)
-{
-}
 static inline void dump_page_pinner(struct page *page)
 {
 }
diff --git a/kernel/futex.c b/kernel/futex.c
index 3cd0ae850fdef..20b27a9551e73 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -587,7 +587,7 @@ again:
 		lock_page(page);
 		shmem_swizzled = PageSwapCache(page) || page->mapping;
 		unlock_page(page);
-		put_user_page(page);
+		put_page(page);
 
 		if (shmem_swizzled)
 			goto again;
@@ -637,7 +637,7 @@ again:
 
 		if (READ_ONCE(page->mapping) != mapping) {
 			rcu_read_unlock();
-			put_user_page(page);
+			put_page(page);
 
 			goto again;
 		}
@@ -645,7 +645,7 @@ again:
 		inode = READ_ONCE(mapping->host);
 		if (!inode) {
 			rcu_read_unlock();
-			put_user_page(page);
+			put_page(page);
 
 			goto again;
 		}
@@ -657,7 +657,7 @@ again:
 	}
 
 out:
-	put_user_page(page);
+	put_page(page);
 	return err;
 }
 
diff --git a/mm/gup.c b/mm/gup.c
index 9fd478f2f7d73..148eb65aa5101 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -126,10 +126,7 @@ static __maybe_unused struct page *try_grab_compound_head(struct page *page,
 		return NULL;
 
 	if (flags & FOLL_GET) {
-		struct page *head = try_get_compound_head(page, refs);
-		if (head)
-			set_page_pinner(head, compound_order(head));
-		return head;
+		return try_get_compound_head(page, refs);
 	} else if (flags & FOLL_PIN) {
 		int orig_refs = refs;
 
@@ -184,8 +181,6 @@ static void put_compound_head(struct page *page, int refs, unsigned int flags)
 			refs *= GUP_PIN_COUNTING_BIAS;
 	}
 
-	if (flags & FOLL_GET)
-		unset_page_pinner(page, compound_order(page));
 	put_page_refs(page, refs);
 }
 
@@ -215,13 +210,7 @@ bool __must_check try_grab_page(struct page *page, unsigned int flags)
 	WARN_ON_ONCE((flags & (FOLL_GET | FOLL_PIN)) == (FOLL_GET | FOLL_PIN));
 
 	if (flags & FOLL_GET) {
-		bool ret = try_get_page(page);
-
-		if (ret) {
-			page = compound_head(page);
-			set_page_pinner(page, compound_order(page));
-		}
-		return ret;
+		return try_get_page(page);
 	} else if (flags & FOLL_PIN) {
 		int refs = 1;
 
@@ -264,24 +253,6 @@ void unpin_user_page(struct page *page)
 }
 EXPORT_SYMBOL(unpin_user_page);
 
-/*
- * put_user_page() - release a page obtained using get_user_pages() or
- *                   follow_page(FOLL_GET)
- * @page:            pointer to page to be released
- *
- * Pages that were obtained via get_user_pages()/follow_page(FOLL_GET) must be
- * released via put_user_page.
- * note: If it's not a page from GUP or follow_page(FOLL_GET), it's harmless.
- */
-void put_user_page(struct page *page)
-{
-	struct page *head = compound_head(page);
-
-	unset_page_pinner(head, compound_order(head));
-	put_page(page);
-}
-EXPORT_SYMBOL(put_user_page);
-
 /**
  * unpin_user_pages_dirty_lock() - release and optionally dirty gup-pinned pages
  * @pages:  array of pages to be maybe marked dirty, and definitely released.
diff --git a/mm/ksm.c b/mm/ksm.c
index e2464c04ede28..25b8362a4f895 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -484,7 +484,7 @@ static int break_ksm(struct vm_area_struct *vma, unsigned long addr)
 					      NULL);
 		else
 			ret = VM_FAULT_WRITE;
-		put_user_page(page);
+		put_page(page);
 	} while (!(ret & (VM_FAULT_WRITE | VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV | VM_FAULT_OOM)));
 	/*
 	 * We must loop because handle_mm_fault() may back out if there's
@@ -569,7 +569,7 @@ static struct page *get_mergeable_page(struct rmap_item *rmap_item)
 		flush_anon_page(vma, page, addr);
 		flush_dcache_page(page);
 	} else {
-		put_user_page(page);
+		put_page(page);
 out:
 		page = NULL;
 	}
@@ -1950,7 +1950,7 @@ struct rmap_item *unstable_tree_search_insert(struct rmap_item *rmap_item,
 		 * Don't substitute a ksm page for a forked page.
 		 */
 		if (page == tree_page) {
-			put_user_page(tree_page);
+			put_page(tree_page);
 			return NULL;
 		}
 
@@ -1958,10 +1958,10 @@ struct rmap_item *unstable_tree_search_insert(struct rmap_item *rmap_item,
 
 		parent = *new;
 		if (ret < 0) {
-			put_user_page(tree_page);
+			put_page(tree_page);
 			new = &parent->rb_left;
 		} else if (ret > 0) {
-			put_user_page(tree_page);
+			put_page(tree_page);
 			new = &parent->rb_right;
 		} else if (!ksm_merge_across_nodes &&
 			   page_to_nid(tree_page) != nid) {
@@ -1970,7 +1970,7 @@ struct rmap_item *unstable_tree_search_insert(struct rmap_item *rmap_item,
 			 * it will be flushed out and put in the right unstable
 			 * tree next time: only merge with it when across_nodes.
 			 */
-			put_user_page(tree_page);
+			put_page(tree_page);
 			return NULL;
 		} else {
 			*tree_pagep = tree_page;
@@ -2151,7 +2151,7 @@ static void cmp_and_merge_page(struct page *page, struct rmap_item *rmap_item)
 		 */
 		split = PageTransCompound(page)
 			&& compound_head(page) == compound_head(tree_page);
-		put_user_page(tree_page);
+		put_page(tree_page);
 		if (kpage) {
 			/*
 			 * The pages were successfully merged: insert new
@@ -2320,11 +2320,11 @@ next_mm:
 							&rmap_item->rmap_list;
 					ksm_scan.address += PAGE_SIZE;
 				} else
-					put_user_page(*page);
+					put_page(*page);
 				mmap_read_unlock(mm);
 				return rmap_item;
 			}
-			put_user_page(*page);
+			put_page(*page);
 			ksm_scan.address += PAGE_SIZE;
 			cond_resched();
 		}
diff --git a/mm/memory.c b/mm/memory.c
index 5bfdb173b41ae..3cac597dbc467 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5535,7 +5535,7 @@ int __access_remote_vm(struct task_struct *tsk, struct mm_struct *mm,
 						    buf, maddr + offset, bytes);
 			}
 			kunmap(page);
-			put_user_page(page);
+			put_page(page);
 		}
 		len -= bytes;
 		buf += bytes;
diff --git a/mm/migrate.c b/mm/migrate.c
index 26f8595de076c..4d25efd7fca47 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1655,7 +1655,7 @@ out_putpage:
 	 * isolate_lru_page() or drop the page ref if it was
 	 * not isolated.
 	 */
-	put_user_page(page);
+	put_page(page);
 out:
 	mmap_read_unlock(mm);
 	return err;
diff --git a/mm/mlock.c b/mm/mlock.c
index 5cfe4a3cc7a7b..ff3f071f7bf0c 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -472,14 +472,6 @@ void munlock_vma_pages_range(struct vm_area_struct *vma,
 		 */
 		page = follow_page(vma, start, FOLL_GET | FOLL_DUMP);
 		if (page && !IS_ERR(page)) {
-			/*
-			 * munlock_vma_pages_range uses follow_page(FOLL_GET)
-			 * so it need to use put_user_page but the munlock
-			 * path is quite complicated to deal with each put
-			 * sites correctly so just unattribute them to avoid
-			 * false positive at this moment.
-			 */
-			unset_page_pinner(page, compound_order(page));
 			if (PageTransTail(page)) {
 				VM_BUG_ON_PAGE(PageMlocked(page), page);
 				put_page(page); /* follow_page_mask() */
diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index 3d812459de252..a9016a8f12f9e 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -51,12 +51,6 @@ struct page_pinner_buffer {
 	struct captured_pinner buffer[PP_BUF_SIZE];
 };
 
-static struct page_pinner_buffer lt_buffer = {
-	.lock = __SPIN_LOCK_UNLOCKED(lt_buffer.lock),
-};
-
-static s64 threshold_usec = 300000;
-
 /* alloc_contig failed pinner */
 static struct page_pinner_buffer acf_buffer = {
 	.lock = __SPIN_LOCK_UNLOCKED(acf_buffer.lock),
@@ -148,51 +142,6 @@ static void add_record(struct page_pinner_buffer *pp_buf,
 	spin_unlock_irqrestore(&pp_buf->lock, flags);
 }
 
-static void check_longterm_pin(struct page_pinner *page_pinner,
-			      struct page *page)
-{
-	s64 now, delta = 0;
-	struct captured_pinner record;
-
-	now = ktime_to_us(ktime_get_boottime());
-
-	/* get/put_page can be raced. Ignore that case */
-	if (page_pinner->ts_usec < now)
-		delta = now - page_pinner->ts_usec;
-
-	if (delta <= threshold_usec)
-		return;
-
-	record.handle = page_pinner->handle;
-	record.elapsed = delta;
-	record.state = PP_PUT;
-	capture_page_state(page, &record);
-
-	add_record(&lt_buffer, &record);
-}
-
-void __unset_page_pinner(struct page *page, unsigned int order)
-{
-	struct page_pinner *page_pinner;
-	struct page_ext *page_ext;
-	int i;
-
-	page_ext = lookup_page_ext(page);
-	if (unlikely(!page_ext))
-		return;
-
-	for (i = 0; i < (1 << order); i++) {
-		if (!test_bit(PAGE_EXT_GET, &page_ext->flags))
-			continue;
-
-		page_pinner = get_page_pinner(page_ext);
-		check_longterm_pin(page_pinner, page);
-		clear_bit(PAGE_EXT_GET, &page_ext->flags);
-		page_pinner->ts_usec = 0;
-		page_ext = page_ext_next(page_ext);
-	}
-}
-
 void __free_page_pinner(struct page *page, unsigned int order)
 {
 	struct page_pinner *page_pinner;
@@ -206,8 +155,7 @@ void __free_page_pinner(struct page *page, unsigned int order)
 	for (i = 0; i < (1 << order); i++) {
 		struct captured_pinner record;
 
-		if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags) &&
-		    !test_bit(PAGE_EXT_GET, &page_ext->flags))
+		if (!test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
 			continue;
 
 		page_pinner = get_page_pinner(page_ext);
@@ -226,30 +174,6 @@ void __free_page_pinner(struct page *page, unsigned int order)
 		atomic_set(&page_pinner->count, 0);
 		page_pinner->ts_usec = 0;
 		clear_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags);
-		clear_bit(PAGE_EXT_GET, &page_ext->flags);
-		page_ext = page_ext_next(page_ext);
-	}
-}
-
-noinline void __set_page_pinner(struct page *page, unsigned int order)
-{
-	struct page_pinner *page_pinner;
-	struct page_ext *page_ext = lookup_page_ext(page);
-	s64 usec = ktime_to_us(ktime_get_boottime());
-	int i;
-
-	depot_stack_handle_t handle;
-
-	if (unlikely(!page_ext))
-		return;
-
-	handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-	for (i = 0; i < (1 << order); i++) {
-		page_pinner = get_page_pinner(page_ext);
-		page_pinner->handle = handle;
-		page_pinner->ts_usec = usec;
-		set_bit(PAGE_EXT_GET, &page_ext->flags);
-		atomic_inc(&page_pinner->count);
 		page_ext = page_ext_next(page_ext);
 	}
 }
@@ -414,43 +338,7 @@ void __page_pinner_put_page(struct page *page)
 }
 EXPORT_SYMBOL_GPL(__page_pinner_put_page);
 
-static ssize_t
-read_longterm_page_pinner(struct file *file, char __user *buf, size_t count,
-			  loff_t *ppos)
-{
-	loff_t i, idx;
-	struct captured_pinner record;
-	unsigned long flags;
-
-	if (!static_branch_unlikely(&page_pinner_inited))
-		return -EINVAL;
-
-	if (*ppos >= PP_BUF_SIZE)
-		return 0;
-
-	i = *ppos;
-	*ppos = i + 1;
-
-	/*
-	 * reading the records in the reverse order with newest one
-	 * being read first followed by older ones
-	 */
-	idx = (lt_buffer.index - 1 - i + PP_BUF_SIZE) %
-	       PP_BUF_SIZE;
-	spin_lock_irqsave(&lt_buffer.lock, flags);
-	record = lt_buffer.buffer[idx];
-	spin_unlock_irqrestore(&lt_buffer.lock, flags);
-	if (!record.handle)
-		return 0;
-
-	return print_page_pinner(buf, count, &record);
-}
-
-static const struct file_operations proc_longterm_pinner_operations = {
-	.read		= read_longterm_page_pinner,
-};
-
-static ssize_t read_alloc_contig_failed(struct file *file, char __user *buf,
+static ssize_t read_buffer(struct file *file, char __user *buf,
 					size_t count, loff_t *ppos)
 {
 	loff_t i, idx;
@@ -482,33 +370,10 @@ static ssize_t read_alloc_contig_failed(struct file *file, char __user *buf,
 	return print_page_pinner(buf, count, &record);
 }
 
-static const struct file_operations proc_alloc_contig_failed_operations = {
-	.read		= read_alloc_contig_failed,
+static const struct file_operations proc_buffer_operations = {
+	.read		= read_buffer,
 };
 
-static int pp_threshold_set(void *data, unsigned long long val)
-{
-	unsigned long flags;
-
-	threshold_usec = (s64)val;
-
-	spin_lock_irqsave(&lt_buffer.lock, flags);
-	memset(lt_buffer.buffer, 0,
-	       sizeof(struct captured_pinner) * PP_BUF_SIZE);
-	lt_buffer.index = 0;
-	spin_unlock_irqrestore(&lt_buffer.lock, flags);
-	return 0;
-}
-
-static int pp_threshold_get(void *data, unsigned long long *val)
-{
-	*val = (unsigned long long)threshold_usec;
-
-	return 0;
-}
-DEFINE_DEBUGFS_ATTRIBUTE(pp_threshold_fops, pp_threshold_get,
-			 pp_threshold_set, "%lld\n");
-
 static int failure_tracking_set(void *data, u64 val)
 {
 	bool on;
@@ -541,15 +406,9 @@ static int __init page_pinner_init(void)
 
 	pp_debugfs_root = debugfs_create_dir("page_pinner", NULL);
 
-	debugfs_create_file("longterm_pinner", 0444, pp_debugfs_root, NULL,
-			    &proc_longterm_pinner_operations);
-
-	debugfs_create_file("threshold", 0644, pp_debugfs_root, NULL,
-			    &pp_threshold_fops);
-
-	debugfs_create_file("alloc_contig_failed", 0444,
+	debugfs_create_file("buffer", 0444,
 			    pp_debugfs_root, NULL,
-			    &proc_alloc_contig_failed_operations);
+			    &proc_buffer_operations);
 
 	debugfs_create_file("failure_tracking", 0644,
 			    pp_debugfs_root, NULL,
-- 
GitLab


From b8a18e852e74eebcad7ba8eaad4ef761fc2e0dae Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Tue, 29 Mar 2022 09:40:14 -0700
Subject: [PATCH 4677/4878] ANDROID: mm: page_pinner: remove static buffer

We shouldn't waste memory for vendors who don't use
page_pinner so remove the page_pinner static buffer.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I46ae2fb5000c4eb59253159032182ca106b39eb9
---
 mm/page_pinner.c | 34 +++++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index a9016a8f12f9e..485e58d2c4e73 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -48,13 +48,11 @@ struct captured_pinner {
 struct page_pinner_buffer {
 	spinlock_t lock;
 	unsigned int index;
-	struct captured_pinner buffer[PP_BUF_SIZE];
+	struct captured_pinner *buffer;
 };
 
 /* alloc_contig failed pinner */
-static struct page_pinner_buffer acf_buffer = {
-	.lock = __SPIN_LOCK_UNLOCKED(acf_buffer.lock),
-};
+static struct page_pinner_buffer pp_buffer;
 
 static bool page_pinner_enabled;
 DEFINE_STATIC_KEY_FALSE(page_pinner_inited);
@@ -148,6 +146,10 @@ void __free_page_pinner(struct page *page, unsigned int order)
 	struct page_ext *page_ext;
 	int i;
 
+	/* free_page could be called before buffer is initialized */
+	if (!pp_buffer.buffer)
+		return;
+
 	page_ext = lookup_page_ext(page);
 	if (unlikely(!page_ext))
 		return;
@@ -169,7 +171,7 @@ void __free_page_pinner(struct page *page, unsigned int order)
 		record.state = PP_FREE;
 		capture_page_state(page, &record);
 
-		add_record(&acf_buffer, &record);
+		add_record(&pp_buffer, &record);
 
 		atomic_set(&page_pinner->count, 0);
 		page_pinner->ts_usec = 0;
@@ -312,7 +314,7 @@ void __page_pinner_failure_detect(struct page *page)
 	record.state = PP_FAIL_DETECTED;
 	capture_page_state(page, &record);
 
-	add_record(&acf_buffer, &record);
+	add_record(&pp_buffer, &record);
 }
 EXPORT_SYMBOL_GPL(__page_pinner_failure_detect);
 
@@ -334,7 +336,7 @@ void __page_pinner_put_page(struct page *page)
 	record.state = PP_PUT;
 	capture_page_state(page, &record);
 
-	add_record(&acf_buffer, &record);
+	add_record(&pp_buffer, &record);
 }
 EXPORT_SYMBOL_GPL(__page_pinner_put_page);
 
@@ -358,12 +360,12 @@ static ssize_t read_buffer(struct file *file, char __user *buf,
 	 * reading the records in the reverse order with newest one
 	 * being read first followed by older ones
 	 */
-	idx = (acf_buffer.index - 1 - i + PP_BUF_SIZE) %
+	idx = (pp_buffer.index - 1 - i + PP_BUF_SIZE) %
 	       PP_BUF_SIZE;
 
-	spin_lock_irqsave(&acf_buffer.lock, flags);
-	record = acf_buffer.buffer[idx];
-	spin_unlock_irqrestore(&acf_buffer.lock, flags);
+	spin_lock_irqsave(&pp_buffer.lock, flags);
+	record = pp_buffer.buffer[idx];
+	spin_unlock_irqrestore(&pp_buffer.lock, flags);
 	if (!record.handle)
 		return 0;
 
@@ -402,6 +404,16 @@ static int __init page_pinner_init(void)
 	if (!static_branch_unlikely(&page_pinner_inited))
 		return 0;
 
+	pp_buffer.buffer = kvmalloc_array(PP_BUF_SIZE, sizeof(*pp_buffer.buffer),
+				GFP_KERNEL);
+	if (!pp_buffer.buffer) {
+		pr_info("page_pinner disabled due to \n");
+		return 1;
+	}
+
+	spin_lock_init(&pp_buffer.lock);
+	pp_buffer.index = 0;
+
 	pr_info("page_pinner enabled\n");
 
 	pp_debugfs_root = debugfs_create_dir("page_pinner", NULL);
-- 
GitLab


From 01edbc91e21505cbf426767d6ad3072d208399f9 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Tue, 29 Mar 2022 14:47:40 -0700
Subject: [PATCH 4678/4878] ANDROID: mm: page_pinner: change pinner buffer size

Introduce $debugfs/page_pinner/buffer_size to change
buffer_size on demand. The change of buffer_size will
reset the buffer.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I505cdc2ee29aa0c6ed4e2dc2c0b6fcff77c388e4
---
 mm/page_pinner.c | 48 +++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 41 insertions(+), 7 deletions(-)

diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index 485e58d2c4e73..f6c83b5500b6c 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -15,7 +15,7 @@
 #include "internal.h"
 
 #define PAGE_PINNER_STACK_DEPTH 16
-#define PP_BUF_SIZE	4096
+static unsigned long pp_buf_size = 4096;
 
 struct page_pinner {
 	depot_stack_handle_t handle;
@@ -47,7 +47,7 @@ struct captured_pinner {
 
 struct page_pinner_buffer {
 	spinlock_t lock;
-	unsigned int index;
+	unsigned long index;
 	struct captured_pinner *buffer;
 };
 
@@ -135,7 +135,7 @@ static void add_record(struct page_pinner_buffer *pp_buf,
 
 	spin_lock_irqsave(&pp_buf->lock, flags);
 	idx = pp_buf->index++;
-	pp_buf->index %= PP_BUF_SIZE;
+	pp_buf->index %= pp_buf_size;
 	pp_buf->buffer[idx] = *record;
 	spin_unlock_irqrestore(&pp_buf->lock, flags);
 }
@@ -343,6 +343,7 @@ EXPORT_SYMBOL_GPL(__page_pinner_put_page);
 static ssize_t read_buffer(struct file *file, char __user *buf,
 					size_t count, loff_t *ppos)
 {
+	u64 tmp;
 	loff_t i, idx;
 	struct captured_pinner record;
 	unsigned long flags;
@@ -350,7 +351,7 @@ static ssize_t read_buffer(struct file *file, char __user *buf,
 	if (!static_branch_unlikely(&failure_tracking))
 		return -EINVAL;
 
-	if (*ppos >= PP_BUF_SIZE)
+	if (*ppos >= pp_buf_size)
 		return 0;
 
 	i = *ppos;
@@ -360,8 +361,8 @@ static ssize_t read_buffer(struct file *file, char __user *buf,
 	 * reading the records in the reverse order with newest one
 	 * being read first followed by older ones
 	 */
-	idx = (pp_buffer.index - 1 - i + PP_BUF_SIZE) %
-	       PP_BUF_SIZE;
+	tmp = pp_buffer.index - 1 - i + pp_buf_size;
+	idx = do_div(tmp, pp_buf_size);
 
 	spin_lock_irqsave(&pp_buffer.lock, flags);
 	record = pp_buffer.buffer[idx];
@@ -397,6 +398,35 @@ DEFINE_DEBUGFS_ATTRIBUTE(failure_tracking_fops,
 			 failure_tracking_get,
 			 failure_tracking_set, "%llu\n");
 
+static int buffer_size_set(void *data, u64 val)
+{
+	unsigned long flags;
+	struct captured_pinner *new, *old;
+
+	new = kvmalloc_array(val, sizeof(*new), GFP_KERNEL);
+	if (!new)
+		return -ENOMEM;
+
+	spin_lock_irqsave(&pp_buffer.lock, flags);
+	old = pp_buffer.buffer;
+	pp_buffer.buffer = new;
+	pp_buffer.index = 0;
+	pp_buf_size = val;
+	spin_unlock_irqrestore(&pp_buffer.lock, flags);
+	kvfree(old);
+
+	return 0;
+}
+
+static int buffer_size_get(void *data, u64 *val)
+{
+	*val = pp_buf_size;
+	return 0;
+}
+DEFINE_DEBUGFS_ATTRIBUTE(buffer_size_fops,
+			 buffer_size_get,
+			 buffer_size_set, "%llu\n");
+
 static int __init page_pinner_init(void)
 {
 	struct dentry *pp_debugfs_root;
@@ -404,7 +434,7 @@ static int __init page_pinner_init(void)
 	if (!static_branch_unlikely(&page_pinner_inited))
 		return 0;
 
-	pp_buffer.buffer = kvmalloc_array(PP_BUF_SIZE, sizeof(*pp_buffer.buffer),
+	pp_buffer.buffer = kvmalloc_array(pp_buf_size, sizeof(*pp_buffer.buffer),
 				GFP_KERNEL);
 	if (!pp_buffer.buffer) {
 		pr_info("page_pinner disabled due to \n");
@@ -425,6 +455,10 @@ static int __init page_pinner_init(void)
 	debugfs_create_file("failure_tracking", 0644,
 			    pp_debugfs_root, NULL,
 			    &failure_tracking_fops);
+
+	debugfs_create_file("buffer_size", 0644,
+			    pp_debugfs_root, NULL,
+			    &buffer_size_fops);
 	return 0;
 }
 late_initcall(page_pinner_init)
-- 
GitLab


From 16b4583a99cf93e1e78bdb3dd002bdfdd78e5962 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Wed, 30 Mar 2022 17:34:31 -0700
Subject: [PATCH 4679/4878] ANDROID: mm: page_pinner: fix build warning

Remove the build warning below.

mm/page_pinner.c:201:28: warning: comparison of distinct pointer types ('typeof ((ts_usec)) *' (aka 'long long *') and 'uint64_t *' (aka 'unsigned long long *')) [-Wcompare-distinct-pointer-types]
                unsigned long rem_usec = do_div(ts_usec, 1000000);

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I4d7b24998c3288f4066b5f88d5ebbf59e04b9873
---
 mm/page_pinner.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index f6c83b5500b6c..9021a37f305a9 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -19,7 +19,7 @@ static unsigned long pp_buf_size = 4096;
 
 struct page_pinner {
 	depot_stack_handle_t handle;
-	s64 ts_usec;
+	u64 ts_usec;
 	atomic_t count;
 };
 
@@ -32,8 +32,8 @@ enum pp_state {
 struct captured_pinner {
 	depot_stack_handle_t handle;
 	union {
-		s64 ts_usec;
-		s64 elapsed;
+		u64 ts_usec;
+		u64 elapsed;
 	};
 
 	/* struct page fields */
@@ -167,7 +167,7 @@ void __free_page_pinner(struct page *page, unsigned int order)
 			continue;
 
 		record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-		record.ts_usec = ktime_to_us(ktime_get_boottime());
+		record.ts_usec = (u64)ktime_to_us(ktime_get_boottime());
 		record.state = PP_FREE;
 		capture_page_state(page, &record);
 
@@ -197,7 +197,7 @@ print_page_pinner(char __user *buf, size_t count, struct captured_pinner *record
 		ret = snprintf(kbuf, count, "At least, pinned for %lld us\n",
 			       record->elapsed);
 	} else {
-		s64 ts_usec = record->ts_usec;
+		u64 ts_usec = record->ts_usec;
 		unsigned long rem_usec = do_div(ts_usec, 1000000);
 
 		ret = snprintf(kbuf, count,
@@ -254,7 +254,7 @@ void __dump_page_pinner(struct page *page)
 	unsigned long pfn;
 	int count;
 	unsigned long rem_usec;
-	s64 ts_usec;
+	u64 ts_usec;
 
 	if (unlikely(!page_ext)) {
 		pr_alert("There is not page extension available.\n");
@@ -273,7 +273,7 @@ void __dump_page_pinner(struct page *page)
 	ts_usec = page_pinner->ts_usec;
 	rem_usec = do_div(ts_usec, 1000000);
 	pr_alert("page last pinned %5lu.%06lu] count %d\n",
-		 (unsigned long)ts_usec, rem_usec, count);
+		 ts_usec, rem_usec, count);
 
 	pageblock_mt = get_pageblock_migratetype(page);
 	pr_alert("PFN %lu Block %lu type %s Flags %#lx(%pGp)\n",
@@ -296,7 +296,7 @@ void __page_pinner_failure_detect(struct page *page)
 	struct page_ext *page_ext = lookup_page_ext(page);
 	struct page_pinner *page_pinner;
 	struct captured_pinner record;
-	s64 now;
+	u64 now;
 
 	if (unlikely(!page_ext))
 		return;
@@ -304,7 +304,7 @@ void __page_pinner_failure_detect(struct page *page)
 	if (test_bit(PAGE_EXT_PINNER_MIGRATION_FAILED, &page_ext->flags))
 		return;
 
-	now = ktime_to_us(ktime_get_boottime());
+	now = (u64)ktime_to_us(ktime_get_boottime());
 	page_pinner = get_page_pinner(page_ext);
 	if (!page_pinner->ts_usec)
 		page_pinner->ts_usec = now;
@@ -332,7 +332,8 @@ void __page_pinner_put_page(struct page *page)
 
 	page_pinner = get_page_pinner(page_ext);
 	record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-	record.elapsed = ktime_to_us(ktime_get_boottime()) - page_pinner->ts_usec;
+	record.elapsed = min_t(u64, 0, (u64)ktime_to_us(ktime_get_boottime()) -
+				page_pinner->ts_usec);
 	record.state = PP_PUT;
 	capture_page_state(page, &record);
 
-- 
GitLab


From f33dc31c48fc62801195b797917d368ae21c5710 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Wed, 30 Mar 2022 13:29:55 -0700
Subject: [PATCH 4680/4878] ANDROID: mm: gup: additional param in vendor hooks

It needs addtional struct page **pages params to judge whether
it's possible to migrate pages out of CMA.

Bug: 227475444
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I9a8aa57ff91228baf0fc970b8499464c07872c09
---
 include/trace/hooks/gup.h | 16 ++++++++--------
 mm/gup.c                  |  8 ++++----
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/trace/hooks/gup.h b/include/trace/hooks/gup.h
index 3f2eb308edfb6..461a8b5f21b14 100644
--- a/include/trace/hooks/gup.h
+++ b/include/trace/hooks/gup.h
@@ -15,20 +15,20 @@ DECLARE_HOOK(android_vh_try_grab_compound_head,
        TP_ARGS(page, refs, flags, ret));
 
 DECLARE_HOOK(android_vh___get_user_pages_remote,
-       TP_PROTO(int *locked, unsigned int *gup_flags),
-       TP_ARGS(locked, gup_flags));
+       TP_PROTO(int *locked, unsigned int *gup_flags, struct page **pages),
+       TP_ARGS(locked, gup_flags, pages));
 
 DECLARE_HOOK(android_vh_get_user_pages,
-       TP_PROTO(unsigned int *gup_flags),
-       TP_ARGS(gup_flags));
+       TP_PROTO(unsigned int *gup_flags, struct page **pages),
+       TP_ARGS(gup_flags, pages));
 
 DECLARE_HOOK(android_vh_internal_get_user_pages_fast,
-       TP_PROTO(unsigned int *gup_flags),
-       TP_ARGS(gup_flags));
+       TP_PROTO(unsigned int *gup_flags, struct page **pages),
+       TP_ARGS(gup_flags, pages));
 
 DECLARE_HOOK(android_vh_pin_user_pages,
-       TP_PROTO(unsigned int *gup_flags),
-       TP_ARGS(gup_flags));
+       TP_PROTO(unsigned int *gup_flags, struct page **pages),
+       TP_ARGS(gup_flags, pages));
 #endif /* _TRACE_HOOK_GUP_H */
 /* This part must be outside protection */
 #include <trace/define_trace.h>
diff --git a/mm/gup.c b/mm/gup.c
index 148eb65aa5101..ecc023e369406 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1740,7 +1740,7 @@ static long __get_user_pages_remote(struct mm_struct *mm,
 				    unsigned int gup_flags, struct page **pages,
 				    struct vm_area_struct **vmas, int *locked)
 {
-	trace_android_vh___get_user_pages_remote(locked, &gup_flags);
+	trace_android_vh___get_user_pages_remote(locked, &gup_flags, pages);
 
 	/*
 	 * Parts of FOLL_LONGTERM behavior are incompatible with
@@ -1880,7 +1880,7 @@ long get_user_pages(unsigned long start, unsigned long nr_pages,
 	if (!is_valid_gup_flags(gup_flags))
 		return -EINVAL;
 
-	trace_android_vh_get_user_pages(&gup_flags);
+	trace_android_vh_get_user_pages(&gup_flags, pages);
 
 	return __gup_longterm_locked(current->mm, start, nr_pages,
 				     pages, vmas, gup_flags | FOLL_TOUCH);
@@ -2691,7 +2691,7 @@ static int internal_get_user_pages_fast(unsigned long start,
 	/* Slow path: try to get the remaining pages with get_user_pages */
 	start += nr_pinned << PAGE_SHIFT;
 	pages += nr_pinned;
-	trace_android_vh_internal_get_user_pages_fast(&gup_flags);
+	trace_android_vh_internal_get_user_pages_fast(&gup_flags, pages);
 	ret = __gup_longterm_unlocked(start, nr_pages - nr_pinned, gup_flags,
 				      pages);
 	if (ret < 0) {
@@ -2917,7 +2917,7 @@ long pin_user_pages(unsigned long start, unsigned long nr_pages,
 		return -EINVAL;
 
 	gup_flags |= FOLL_PIN;
-	trace_android_vh_pin_user_pages(&gup_flags);
+	trace_android_vh_pin_user_pages(&gup_flags, pages);
 	return __gup_longterm_locked(current->mm, start, nr_pages,
 				     pages, vmas, gup_flags);
 }
-- 
GitLab


From ac3d413511a76ca08e44242a1d76c04ddb0dad39 Mon Sep 17 00:00:00 2001
From: Saravana Kannan <saravanak@google.com>
Date: Wed, 30 Mar 2022 14:58:30 -0700
Subject: [PATCH 4681/4878] ANDROID: vendor_hooks: Reduce pointless modversions
 CRC churn

When vendor hooks are added to a file that previously didn't have any
vendor hooks, we end up indirectly including linux/tracepoint.h.  This
causes some data types that used to be opaque (forward declared) to the
code to become visible to the code.

Modversions correctly catches this change in visibility, but we don't
really care about the data types made visible when linux/tracepoint.h is
included. So, hide this from modversions in the central vendor_hooks.h file
instead of having to fix this on a case by case basis.

This change itself will cause a one time CRC breakage/churn because it's
fixing the existing vendor hook headers, but should reduce unnecessary CRC
churns in the future.

To avoid future pointless CRC churn, vendor hook header files that include
vendor_hooks.h should not include linux/tracepoint.h directly.

Bug: 227513263
Bug: 226140073
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: Ia88e6af11dd94fe475c464eb30a6e5e1e24c938b
---
 drivers/android/vendor_hooks.c      | 1 +
 include/trace/hooks/avc.h           | 1 -
 include/trace/hooks/binder.h        | 1 -
 include/trace/hooks/block.h         | 1 -
 include/trace/hooks/bug.h           | 1 -
 include/trace/hooks/cgroup.h        | 1 -
 include/trace/hooks/cpu.h           | 1 -
 include/trace/hooks/cpufreq.h       | 1 -
 include/trace/hooks/cpuidle.h       | 1 -
 include/trace/hooks/cpuidle_psci.h  | 1 -
 include/trace/hooks/creds.h         | 1 -
 include/trace/hooks/debug.h         | 1 -
 include/trace/hooks/dtask.h         | 1 -
 include/trace/hooks/epoch.h         | 1 -
 include/trace/hooks/fault.h         | 1 -
 include/trace/hooks/fips140.h       | 1 -
 include/trace/hooks/fpsimd.h        | 1 -
 include/trace/hooks/fs.h            | 1 -
 include/trace/hooks/ftrace_dump.h   | 1 -
 include/trace/hooks/futex.h         | 1 -
 include/trace/hooks/gic.h           | 1 -
 include/trace/hooks/gic_v3.h        | 1 -
 include/trace/hooks/gpiolib.h       | 1 -
 include/trace/hooks/gup.h           | 1 -
 include/trace/hooks/hung_task.h     | 1 -
 include/trace/hooks/i2c.h           | 1 -
 include/trace/hooks/iommu.h         | 1 -
 include/trace/hooks/ipv6.h          | 1 -
 include/trace/hooks/logbuf.h        | 1 -
 include/trace/hooks/memory.h        | 1 -
 include/trace/hooks/mm.h            | 1 -
 include/trace/hooks/mmc_core.h      | 1 -
 include/trace/hooks/module.h        | 1 -
 include/trace/hooks/mpam.h          | 1 -
 include/trace/hooks/net.h           | 1 -
 include/trace/hooks/pm_domain.h     | 1 -
 include/trace/hooks/power.h         | 1 -
 include/trace/hooks/preemptirq.h    | 1 -
 include/trace/hooks/printk.h        | 1 -
 include/trace/hooks/psi.h           | 1 -
 include/trace/hooks/remoteproc.h    | 1 -
 include/trace/hooks/rwsem.h         | 1 -
 include/trace/hooks/sched.h         | 1 -
 include/trace/hooks/scmi.h          | 1 -
 include/trace/hooks/selinux.h       | 1 -
 include/trace/hooks/shmem_fs.h      | 1 -
 include/trace/hooks/signal.h        | 1 -
 include/trace/hooks/snd_compr.h     | 1 -
 include/trace/hooks/softlockup.h    | 1 -
 include/trace/hooks/sound.h         | 1 -
 include/trace/hooks/sys.h           | 1 -
 include/trace/hooks/syscall_check.h | 1 -
 include/trace/hooks/sysrqcrash.h    | 1 -
 include/trace/hooks/thermal.h       | 1 -
 include/trace/hooks/timer.h         | 1 -
 include/trace/hooks/topology.h      | 1 -
 include/trace/hooks/traps.h         | 1 -
 include/trace/hooks/typec.h         | 1 -
 include/trace/hooks/ufshcd.h        | 1 -
 include/trace/hooks/usb.h           | 1 -
 include/trace/hooks/user.h          | 1 -
 include/trace/hooks/v4l2core.h      | 1 -
 include/trace/hooks/v4l2mc.h        | 1 -
 include/trace/hooks/vendor_hooks.h  | 2 ++
 include/trace/hooks/vmscan.h        | 1 -
 include/trace/hooks/workqueue.h     | 1 -
 include/trace/hooks/wqlockup.h      | 1 -
 67 files changed, 3 insertions(+), 65 deletions(-)

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index c60e6ff02a4f0..18caca409bd2a 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -8,6 +8,7 @@
 
 #define CREATE_TRACE_POINTS
 #include <trace/hooks/vendor_hooks.h>
+#include <linux/tracepoint.h>
 #include <trace/hooks/sched.h>
 #include <trace/hooks/cpu.h>
 #include <trace/hooks/fpsimd.h>
diff --git a/include/trace/hooks/avc.h b/include/trace/hooks/avc.h
index 2c76e02fc3c52..1d205382e6df4 100644
--- a/include/trace/hooks/avc.h
+++ b/include/trace/hooks/avc.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_AVC_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_AVC_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/binder.h b/include/trace/hooks/binder.h
index ffba8746e58ba..d7419ef64de21 100644
--- a/include/trace/hooks/binder.h
+++ b/include/trace/hooks/binder.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_BINDER_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_BINDER_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/block.h b/include/trace/hooks/block.h
index 0d9d7db399680..ca9762a9be5b0 100644
--- a/include/trace/hooks/block.h
+++ b/include/trace/hooks/block.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_BLOCK_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct blk_mq_tag_set;
diff --git a/include/trace/hooks/bug.h b/include/trace/hooks/bug.h
index 685859e0eaf79..3bd683e54f713 100644
--- a/include/trace/hooks/bug.h
+++ b/include/trace/hooks/bug.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_BUG_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_BUG_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/cgroup.h b/include/trace/hooks/cgroup.h
index 6b6d7918c5186..e33d3519d6765 100644
--- a/include/trace/hooks/cgroup.h
+++ b/include/trace/hooks/cgroup.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_CGROUP_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_CGROUP_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct task_struct;
diff --git a/include/trace/hooks/cpu.h b/include/trace/hooks/cpu.h
index 645702996b000..b368736e72857 100644
--- a/include/trace/hooks/cpu.h
+++ b/include/trace/hooks/cpu.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_CPU_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_CPU_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/cpufreq.h b/include/trace/hooks/cpufreq.h
index 5142cd5a07de4..70f90a3ef25c2 100644
--- a/include/trace/hooks/cpufreq.h
+++ b/include/trace/hooks/cpufreq.h
@@ -8,7 +8,6 @@
 #define _TRACE_HOOK_CPUFREQ_H
 
 #include <linux/cpufreq.h>
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_show_max_freq,
diff --git a/include/trace/hooks/cpuidle.h b/include/trace/hooks/cpuidle.h
index 6d1f4bf7f1edb..c2ddabe37b00b 100644
--- a/include/trace/hooks/cpuidle.h
+++ b/include/trace/hooks/cpuidle.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_CPUIDLE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_CPUIDLE_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct cpuidle_device;
diff --git a/include/trace/hooks/cpuidle_psci.h b/include/trace/hooks/cpuidle_psci.h
index 94b01eba0b4ec..eef0032c0879b 100644
--- a/include/trace/hooks/cpuidle_psci.h
+++ b/include/trace/hooks/cpuidle_psci.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_CPUIDLE_PSCI_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_CPUIDLE_PSCI_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/creds.h b/include/trace/hooks/creds.h
index dd877e3a1f3e4..92b0d8e981f3a 100644
--- a/include/trace/hooks/creds.h
+++ b/include/trace/hooks/creds.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_CREDS_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_CREDS_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/debug.h b/include/trace/hooks/debug.h
index ac006d7fdd0a2..90d81041a48b5 100644
--- a/include/trace/hooks/debug.h
+++ b/include/trace/hooks/debug.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_DEBUG_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_DEBUG_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
diff --git a/include/trace/hooks/dtask.h b/include/trace/hooks/dtask.h
index 3c49af0e65608..b483037e10131 100644
--- a/include/trace/hooks/dtask.h
+++ b/include/trace/hooks/dtask.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_DTASK_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_DTASK_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/epoch.h b/include/trace/hooks/epoch.h
index f1c5342c822e3..c3f018edf1306 100644
--- a/include/trace/hooks/epoch.h
+++ b/include/trace/hooks/epoch.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_EPOCH_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_EPOCH_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_show_suspend_epoch_val,
diff --git a/include/trace/hooks/fault.h b/include/trace/hooks/fault.h
index 1daf2d250f310..8803a1b3d2f08 100644
--- a/include/trace/hooks/fault.h
+++ b/include/trace/hooks/fault.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_FAULT_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_FAULT_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/fips140.h b/include/trace/hooks/fips140.h
index 3aebf61687915..fd4a42c013c74 100644
--- a/include/trace/hooks/fips140.h
+++ b/include/trace/hooks/fips140.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_FIPS140_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_FIPS140_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct crypto_aes_ctx;
diff --git a/include/trace/hooks/fpsimd.h b/include/trace/hooks/fpsimd.h
index a4a3ce228fff9..3365c298e6bc1 100644
--- a/include/trace/hooks/fpsimd.h
+++ b/include/trace/hooks/fpsimd.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_FPSIMD_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_FPSIMD_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct task_struct;
diff --git a/include/trace/hooks/fs.h b/include/trace/hooks/fs.h
index 90acad536bdba..1c8d692be3afa 100644
--- a/include/trace/hooks/fs.h
+++ b/include/trace/hooks/fs.h
@@ -8,7 +8,6 @@
 #if !defined(_TRACE_HOOK_FS_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_FS_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 DECLARE_HOOK(android_vh_ep_create_wakeup_source,
 	TP_PROTO(char *name, int len),
diff --git a/include/trace/hooks/ftrace_dump.h b/include/trace/hooks/ftrace_dump.h
index ed3be8a0d74b1..b63d9c8094260 100644
--- a/include/trace/hooks/ftrace_dump.h
+++ b/include/trace/hooks/ftrace_dump.h
@@ -10,7 +10,6 @@
 #include <linux/trace_seq.h>
 #include <linux/trace_events.h>
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_ftrace_oops_enter,
diff --git a/include/trace/hooks/futex.h b/include/trace/hooks/futex.h
index 0692dd68d93c4..3acf8128dc3e6 100644
--- a/include/trace/hooks/futex.h
+++ b/include/trace/hooks/futex.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_FUTEX_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_FUTEX_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 #include <linux/plist.h>
 /*
diff --git a/include/trace/hooks/gic.h b/include/trace/hooks/gic.h
index 2f7d3cfa6d9b3..d33786f2de95b 100644
--- a/include/trace/hooks/gic.h
+++ b/include/trace/hooks/gic.h
@@ -8,7 +8,6 @@
 #define _TRACE_HOOK_GIC_H
 
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 struct gic_chip_data;
 
diff --git a/include/trace/hooks/gic_v3.h b/include/trace/hooks/gic_v3.h
index 3afb7379145d1..337f7e1348c18 100644
--- a/include/trace/hooks/gic_v3.h
+++ b/include/trace/hooks/gic_v3.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_GIC_V3_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_GIC_V3_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/gpiolib.h b/include/trace/hooks/gpiolib.h
index 96aca935f953d..24cb3f54fb82e 100644
--- a/include/trace/hooks/gpiolib.h
+++ b/include/trace/hooks/gpiolib.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_GPIOLIB_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_GPIOLIB_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 #include "../drivers/gpio/gpiolib.h"
 
diff --git a/include/trace/hooks/gup.h b/include/trace/hooks/gup.h
index 461a8b5f21b14..47ea47eeede40 100644
--- a/include/trace/hooks/gup.h
+++ b/include/trace/hooks/gup.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_GUP_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_GUP_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct page;
diff --git a/include/trace/hooks/hung_task.h b/include/trace/hooks/hung_task.h
index b355828df349e..1559d3ed774f0 100644
--- a/include/trace/hooks/hung_task.h
+++ b/include/trace/hooks/hung_task.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_HUNG_TASK_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_HUNG_TASK_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_check_uninterruptible_tasks,
diff --git a/include/trace/hooks/i2c.h b/include/trace/hooks/i2c.h
index 71536ad67f670..306c0f8cab51f 100644
--- a/include/trace/hooks/i2c.h
+++ b/include/trace/hooks/i2c.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_I2C_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_I2C_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_of_i2c_get_board_info,
diff --git a/include/trace/hooks/iommu.h b/include/trace/hooks/iommu.h
index c9a52193c4e94..6c30cb7932fa6 100644
--- a/include/trace/hooks/iommu.h
+++ b/include/trace/hooks/iommu.h
@@ -9,7 +9,6 @@
 
 #include <linux/types.h>
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
diff --git a/include/trace/hooks/ipv6.h b/include/trace/hooks/ipv6.h
index c1998af0c5a0a..64a5481612332 100644
--- a/include/trace/hooks/ipv6.h
+++ b/include/trace/hooks/ipv6.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_IPV6_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_IPV6_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/logbuf.h b/include/trace/hooks/logbuf.h
index f73ad597fc648..72c34f7fbad0c 100644
--- a/include/trace/hooks/logbuf.h
+++ b/include/trace/hooks/logbuf.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_LOGBUF_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_LOGBUF_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct printk_ringbuffer;
diff --git a/include/trace/hooks/memory.h b/include/trace/hooks/memory.h
index 4b3f77a72d82c..940af43d736c5 100644
--- a/include/trace/hooks/memory.h
+++ b/include/trace/hooks/memory.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_MEMORY_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_MEMORY_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/mm.h b/include/trace/hooks/mm.h
index ac6142a6e02ad..9b583a3371011 100644
--- a/include/trace/hooks/mm.h
+++ b/include/trace/hooks/mm.h
@@ -11,7 +11,6 @@
 
 #include <linux/mm.h>
 #include <linux/oom.h>
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct cma;
diff --git a/include/trace/hooks/mmc_core.h b/include/trace/hooks/mmc_core.h
index ad367782d59f6..2e36dd8b2b67a 100644
--- a/include/trace/hooks/mmc_core.h
+++ b/include/trace/hooks/mmc_core.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_MMC_CORE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_MMC_CORE_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct mmc_host;
diff --git a/include/trace/hooks/module.h b/include/trace/hooks/module.h
index 281cb0d37c12c..78b49869ca65c 100644
--- a/include/trace/hooks/module.h
+++ b/include/trace/hooks/module.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_MODULE_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/mpam.h b/include/trace/hooks/mpam.h
index 8479fe7c2356f..b62f965032da7 100644
--- a/include/trace/hooks/mpam.h
+++ b/include/trace/hooks/mpam.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_MPAM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_MPAM_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/net.h b/include/trace/hooks/net.h
index 6715aa4eb668d..0b6de6f659cf7 100644
--- a/include/trace/hooks/net.h
+++ b/include/trace/hooks/net.h
@@ -6,7 +6,6 @@
 
 #if !defined(_TRACE_HOOK_NET_VH_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_NET_VH_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct packet_type;
diff --git a/include/trace/hooks/pm_domain.h b/include/trace/hooks/pm_domain.h
index 548e350e80908..f6b1c3808ce98 100644
--- a/include/trace/hooks/pm_domain.h
+++ b/include/trace/hooks/pm_domain.h
@@ -8,7 +8,6 @@
 #if !defined(_TRACE_HOOK_PM_DOMAIN_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_PM_DOMAIN_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct generic_pm_domain;
diff --git a/include/trace/hooks/power.h b/include/trace/hooks/power.h
index 149ea08580b80..195538679f322 100644
--- a/include/trace/hooks/power.h
+++ b/include/trace/hooks/power.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_POWER_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_POWER_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/preemptirq.h b/include/trace/hooks/preemptirq.h
index b4d32c473f3ac..4fbab929f4cf5 100644
--- a/include/trace/hooks/preemptirq.h
+++ b/include/trace/hooks/preemptirq.h
@@ -8,7 +8,6 @@
 #if !defined(_TRACE_HOOK_PREEMPTIRQ_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_PREEMPTIRQ_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_RESTRICTED_HOOK(android_rvh_preempt_disable,
diff --git a/include/trace/hooks/printk.h b/include/trace/hooks/printk.h
index e4df6e4bf7a8a..5ec4d743d67f5 100644
--- a/include/trace/hooks/printk.h
+++ b/include/trace/hooks/printk.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_PRINTK_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_PRINTK_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_printk_hotplug,
diff --git a/include/trace/hooks/psi.h b/include/trace/hooks/psi.h
index 62d1a0ee7b635..bd704c16185b4 100644
--- a/include/trace/hooks/psi.h
+++ b/include/trace/hooks/psi.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_PSI_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_PSI_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
diff --git a/include/trace/hooks/remoteproc.h b/include/trace/hooks/remoteproc.h
index 7cc5e93d2ebe5..ee0a2f0ea147f 100644
--- a/include/trace/hooks/remoteproc.h
+++ b/include/trace/hooks/remoteproc.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_RPROC_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_RPROC_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct rproc;
diff --git a/include/trace/hooks/rwsem.h b/include/trace/hooks/rwsem.h
index d644a6e212598..9737879e3bc8f 100644
--- a/include/trace/hooks/rwsem.h
+++ b/include/trace/hooks/rwsem.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_RWSEM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_RWSEM_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/sched.h b/include/trace/hooks/sched.h
index f459ec72d368b..79e8b401b3a07 100644
--- a/include/trace/hooks/sched.h
+++ b/include/trace/hooks/sched.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SCHED_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/scmi.h b/include/trace/hooks/scmi.h
index ea2db9f07a9f8..d889d3334b9cb 100644
--- a/include/trace/hooks/scmi.h
+++ b/include/trace/hooks/scmi.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_SCMI_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SCMI_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_scmi_timeout_sync,
diff --git a/include/trace/hooks/selinux.h b/include/trace/hooks/selinux.h
index 2ad6484d2c553..ebd6187c41082 100644
--- a/include/trace/hooks/selinux.h
+++ b/include/trace/hooks/selinux.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SELINUX_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SELINUX_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/shmem_fs.h b/include/trace/hooks/shmem_fs.h
index 08e63033070e9..0077707072c5c 100644
--- a/include/trace/hooks/shmem_fs.h
+++ b/include/trace/hooks/shmem_fs.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SHMEM_FS_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SHMEM_FS_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct page;
diff --git a/include/trace/hooks/signal.h b/include/trace/hooks/signal.h
index a0db2e8cf77d3..937e6c49b7ca8 100644
--- a/include/trace/hooks/signal.h
+++ b/include/trace/hooks/signal.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SIGNAL_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SIGNAL_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct task_struct;
diff --git a/include/trace/hooks/snd_compr.h b/include/trace/hooks/snd_compr.h
index c42ed8d6bc301..2e63aff9e4f94 100644
--- a/include/trace/hooks/snd_compr.h
+++ b/include/trace/hooks/snd_compr.h
@@ -8,7 +8,6 @@
 #if !defined(_TRACE_HOOK_SND_COMPR_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SND_COMPR_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/softlockup.h b/include/trace/hooks/softlockup.h
index 9294913f91df3..072f30007d712 100644
--- a/include/trace/hooks/softlockup.h
+++ b/include/trace/hooks/softlockup.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_SOFTLOCKUP_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SOFTLOCKUP_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/sound.h b/include/trace/hooks/sound.h
index 2bf018edf3926..3dfd589d264d1 100644
--- a/include/trace/hooks/sound.h
+++ b/include/trace/hooks/sound.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SOUND_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SOUND_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 #include <linux/usb.h>
 
diff --git a/include/trace/hooks/sys.h b/include/trace/hooks/sys.h
index 9e5d7a5cb2cf1..e2d5d6d4fc142 100644
--- a/include/trace/hooks/sys.h
+++ b/include/trace/hooks/sys.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SYS_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SYS_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct task_struct;
diff --git a/include/trace/hooks/syscall_check.h b/include/trace/hooks/syscall_check.h
index d39802aa4a1e6..56d8267297ca2 100644
--- a/include/trace/hooks/syscall_check.h
+++ b/include/trace/hooks/syscall_check.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_SYSCALL_CHECK_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SYSCALL_CHECK_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/sysrqcrash.h b/include/trace/hooks/sysrqcrash.h
index d163f898a9f6e..0056322c38179 100644
--- a/include/trace/hooks/sysrqcrash.h
+++ b/include/trace/hooks/sysrqcrash.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_SYSRQCRASH_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_SYSRQCRASH_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/thermal.h b/include/trace/hooks/thermal.h
index 25d6151b29190..78ce2a5ea49bf 100644
--- a/include/trace/hooks/thermal.h
+++ b/include/trace/hooks/thermal.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_THERMAL_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_THERMAL_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 #include <linux/cpufreq.h>
 
diff --git a/include/trace/hooks/timer.h b/include/trace/hooks/timer.h
index 174d958e4c314..67ef865dad4ad 100644
--- a/include/trace/hooks/timer.h
+++ b/include/trace/hooks/timer.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_TIMER_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_TIMER_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_timer_calc_index,
diff --git a/include/trace/hooks/topology.h b/include/trace/hooks/topology.h
index 74014027160c8..5d29893ba477d 100644
--- a/include/trace/hooks/topology.h
+++ b/include/trace/hooks/topology.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_TOPOLOGY_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_TOPOLOGY_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 #include <linux/cpumask.h>
 
diff --git a/include/trace/hooks/traps.h b/include/trace/hooks/traps.h
index 350a14369acc9..38749535aa4d0 100644
--- a/include/trace/hooks/traps.h
+++ b/include/trace/hooks/traps.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_TRAPS_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_TRAPS_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/typec.h b/include/trace/hooks/typec.h
index b7be4d8577081..6634dbb82917f 100644
--- a/include/trace/hooks/typec.h
+++ b/include/trace/hooks/typec.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_TYPEC_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_TYPEC_H
-#include <linux/tracepoint.h>
 #include <linux/usb/pd.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
diff --git a/include/trace/hooks/ufshcd.h b/include/trace/hooks/ufshcd.h
index 744a1db41631d..eebde088cd240 100644
--- a/include/trace/hooks/ufshcd.h
+++ b/include/trace/hooks/ufshcd.h
@@ -4,7 +4,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_UFSHCD_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_UFSHCD_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/usb.h b/include/trace/hooks/usb.h
index f8459473042e4..f4d5ff04b6b88 100644
--- a/include/trace/hooks/usb.h
+++ b/include/trace/hooks/usb.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_USB_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_USB_H
-#include <linux/tracepoint.h>
 #include <linux/usb.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
diff --git a/include/trace/hooks/user.h b/include/trace/hooks/user.h
index b5b507ccd9c26..773eed2ea75a4 100644
--- a/include/trace/hooks/user.h
+++ b/include/trace/hooks/user.h
@@ -5,7 +5,6 @@
 #define TRACE_INCLUDE_PATH trace/hooks
 #if !defined(_TRACE_HOOK_USER_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_USER_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct user_struct;
diff --git a/include/trace/hooks/v4l2core.h b/include/trace/hooks/v4l2core.h
index 32b6e96ba627b..615e1ce8ff9e9 100644
--- a/include/trace/hooks/v4l2core.h
+++ b/include/trace/hooks/v4l2core.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_V4L2CORE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_V4L2_CORE_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct v4l2_format;
diff --git a/include/trace/hooks/v4l2mc.h b/include/trace/hooks/v4l2mc.h
index 8a4653bd4a4de..952c3ffe26e5c 100644
--- a/include/trace/hooks/v4l2mc.h
+++ b/include/trace/hooks/v4l2mc.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_V4L2MC_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_V4L2MC_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 struct media_link;
diff --git a/include/trace/hooks/vendor_hooks.h b/include/trace/hooks/vendor_hooks.h
index f51a9ac310457..a283509abbf61 100644
--- a/include/trace/hooks/vendor_hooks.h
+++ b/include/trace/hooks/vendor_hooks.h
@@ -7,7 +7,9 @@
  *  will override the DECLARE_RESTRICTED_HOOK and break the second include.
  */
 
+#ifndef __GENKSYMS__
 #include <linux/tracepoint.h>
+#endif
 
 #if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
 
diff --git a/include/trace/hooks/vmscan.h b/include/trace/hooks/vmscan.h
index b6b77d9895cdd..4a3af8e75839f 100644
--- a/include/trace/hooks/vmscan.h
+++ b/include/trace/hooks/vmscan.h
@@ -7,7 +7,6 @@
 #if !defined(_TRACE_HOOK_VMSCAN_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_VMSCAN_H
 
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 
 DECLARE_HOOK(android_vh_tune_scan_type,
diff --git a/include/trace/hooks/workqueue.h b/include/trace/hooks/workqueue.h
index 0ffe56433a4c8..dee037d0b7c04 100644
--- a/include/trace/hooks/workqueue.h
+++ b/include/trace/hooks/workqueue.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_WORKQUEUE_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
diff --git a/include/trace/hooks/wqlockup.h b/include/trace/hooks/wqlockup.h
index 21e23ad6b9d90..2572ebf5eff46 100644
--- a/include/trace/hooks/wqlockup.h
+++ b/include/trace/hooks/wqlockup.h
@@ -5,7 +5,6 @@
 
 #if !defined(_TRACE_HOOK_WQLOCKUP_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_HOOK_WQLOCKUP_H
-#include <linux/tracepoint.h>
 #include <trace/hooks/vendor_hooks.h>
 /*
  * Following tracepoints are not exported in tracefs and provide a
-- 
GitLab


From a63ec2bcac4c3bf31ad416da44ede2c628dd381a Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Wed, 6 Apr 2022 08:36:35 -0700
Subject: [PATCH 4682/4878] ANDROID: GKI: 4/6/2022 KMI update

Set KMI_GENERATION=3 for 4/6 KMI update

Leaf changes summary: 26 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 23 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 2 Removed, 0 Changed, 0 Added variable

23 Removed functions:

  [D] 'function file* anon_inode_getfile(const char*, const file_operations*, void*, int)'
  [D] 'function int compat_only_sysfs_link_entry_to_kobj(kobject*, kobject*, const char*, const char*)'
  [D] 'function int device_match_name(device*, void*)'
  [D] 'function gnss_device* gnss_allocate_device(device*)'
  [D] 'function void gnss_deregister_device(gnss_device*)'
  [D] 'function int gnss_insert_raw(gnss_device*, const unsigned char*, size_t)'
  [D] 'function void gnss_put_device(gnss_device*)'
  [D] 'function int gnss_register_device(gnss_device*)'
  [D] 'function void* idr_replace(idr*, void*, unsigned long int)'
  [D] 'function void led_set_brightness_nosleep(led_classdev*, led_brightness)'
  [D] 'function void led_trigger_event(led_trigger*, led_brightness)'
  [D] 'function int led_trigger_register(led_trigger*)'
  [D] 'function void led_trigger_unregister(led_trigger*)'
  [D] 'function dentry* securityfs_create_dir(const char*, dentry*)'
  [D] 'function dentry* securityfs_create_file(const char*, umode_t, dentry*, void*, const file_operations*)'
  [D] 'function void securityfs_remove(dentry*)'
  [D] 'function void serdev_device_close(serdev_device*)'
  [D] 'function int serdev_device_open(serdev_device*)'
  [D] 'function unsigned int serdev_device_set_baudrate(serdev_device*, unsigned int)'
  [D] 'function void serdev_device_set_flow_control(serdev_device*, bool)'
  [D] 'function void serdev_device_wait_until_sent(serdev_device*, long int)'
  [D] 'function int serdev_device_write(serdev_device*, const unsigned char*, size_t, long int)'
  [D] 'function void serdev_device_write_wakeup(serdev_device*)'

1 Added function:

  [A] 'function void __page_pinner_put_page(page*)'

2 Removed variables:

  [D] 'int efi_tpm_final_log_size'
  [D] 'const int hash_digest_size[20]'

Bug: 228318757
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I947875f13a75de7cb0c2765057cc468cc6810875
---
 android/abi_gki_aarch64.xml            | 2272 ++++++++++--------------
 android/abi_gki_aarch64_generic        |    1 -
 android/abi_gki_aarch64_hikey960       |    1 -
 android/abi_gki_aarch64_virtual_device |  132 +-
 build.config.common                    |    2 +-
 5 files changed, 989 insertions(+), 1419 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index d055e4d3912db..614f51c17f78e 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -143,7 +143,7 @@
       <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5c03c7'/>
       <elf-symbol name='__of_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x220b3ca3'/>
       <elf-symbol name='__page_frag_cache_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82702c60'/>
-      <elf-symbol name='__page_pinner_migration_failed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf75ae849'/>
+      <elf-symbol name='__page_pinner_put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9de074a1'/>
       <elf-symbol name='__pci_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a11108d'/>
       <elf-symbol name='__platform_driver_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c511cf2'/>
       <elf-symbol name='__platform_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8390dd5'/>
@@ -176,8 +176,8 @@
       <elf-symbol name='__rtc_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5384acc6'/>
       <elf-symbol name='__scsi_iterate_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba247812'/>
       <elf-symbol name='__scsi_print_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4870c30d'/>
-      <elf-symbol name='__sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6b929a8'/>
-      <elf-symbol name='__sdhci_set_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb10f87ce'/>
+      <elf-symbol name='__sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbde46141'/>
+      <elf-symbol name='__sdhci_set_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe676c15'/>
       <elf-symbol name='__seq_open_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x264ece54'/>
       <elf-symbol name='__serio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb966a74c'/>
       <elf-symbol name='__serio_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57539006'/>
@@ -240,7 +240,7 @@
       <elf-symbol name='__traceiter_android_rvh_update_blocked_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d9b54a'/>
       <elf-symbol name='__traceiter_android_rvh_update_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeff8bb86'/>
       <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2968ee74'/>
-      <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeda60f64'/>
+      <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a71ea37'/>
       <elf-symbol name='__traceiter_android_vh_aes_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1574b'/>
       <elf-symbol name='__traceiter_android_vh_aes_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6160ff0c'/>
       <elf-symbol name='__traceiter_android_vh_aes_expandkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc004b58'/>
@@ -252,15 +252,15 @@
       <elf-symbol name='__traceiter_android_vh_dup_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eb9ac10'/>
       <elf-symbol name='__traceiter_android_vh_enable_thermal_genl_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc39a1e16'/>
       <elf-symbol name='__traceiter_android_vh_ep_create_wakeup_source' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e8ed582'/>
-      <elf-symbol name='__traceiter_android_vh_get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9854c76b'/>
-      <elf-symbol name='__traceiter_android_vh_internal_get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e523298'/>
+      <elf-symbol name='__traceiter_android_vh_get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee8ed45c'/>
+      <elf-symbol name='__traceiter_android_vh_internal_get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9008bc04'/>
       <elf-symbol name='__traceiter_android_vh_ipi_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x250fcbba'/>
       <elf-symbol name='__traceiter_android_vh_meminfo_proc_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6b0362e'/>
       <elf-symbol name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a666675'/>
       <elf-symbol name='__traceiter_android_vh_mmc_blk_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae47a396'/>
       <elf-symbol name='__traceiter_android_vh_of_i2c_get_board_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcc0513d'/>
       <elf-symbol name='__traceiter_android_vh_pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e4bbcf'/>
-      <elf-symbol name='__traceiter_android_vh_pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa07ed526'/>
+      <elf-symbol name='__traceiter_android_vh_pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf840148d'/>
       <elf-symbol name='__traceiter_android_vh_rmqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9aacbdd9'/>
       <elf-symbol name='__traceiter_android_vh_scheduler_tick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c91de8f'/>
       <elf-symbol name='__traceiter_android_vh_setscheduler_uclamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2670a8ee'/>
@@ -310,7 +310,7 @@
       <elf-symbol name='__traceiter_sched_util_est_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9990573a'/>
       <elf-symbol name='__traceiter_sched_util_est_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63423c10'/>
       <elf-symbol name='__traceiter_suspend_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5883efb'/>
-      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x520bb9af'/>
+      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa06f3624'/>
       <elf-symbol name='__tty_insert_flip_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ad626c6'/>
       <elf-symbol name='__udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e7d6bd0'/>
       <elf-symbol name='__uio_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x817cf9ee'/>
@@ -395,7 +395,6 @@
       <elf-symbol name='android_debug_symbol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c42be3b'/>
       <elf-symbol name='android_rvh_probe_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fbbd0bb'/>
       <elf-symbol name='anon_inode_getfd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ceb2021'/>
-      <elf-symbol name='anon_inode_getfile' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bfc865f'/>
       <elf-symbol name='argv_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0b13336'/>
       <elf-symbol name='argv_split' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7380dffa'/>
       <elf-symbol name='async_schedule_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5f370e0'/>
@@ -664,7 +663,6 @@
       <elf-symbol name='cma_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cfece84'/>
       <elf-symbol name='cma_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x334bbb4a'/>
       <elf-symbol name='compat_alloc_user_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbffde8ec'/>
-      <elf-symbol name='compat_only_sysfs_link_entry_to_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c8e8e02'/>
       <elf-symbol name='compat_ptr_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52a45d32'/>
       <elf-symbol name='complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6257a2f'/>
       <elf-symbol name='complete_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93d6dd8c'/>
@@ -719,7 +717,7 @@
       <elf-symbol name='cpufreq_register_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab27ed45'/>
       <elf-symbol name='cpufreq_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65d9e877'/>
       <elf-symbol name='cpufreq_remove_update_util_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3192d768'/>
-      <elf-symbol name='cpufreq_table_index_unsorted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf31f3dc'/>
+      <elf-symbol name='cpufreq_table_index_unsorted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ed12f2'/>
       <elf-symbol name='cpufreq_this_cpu_can_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x784f84e0'/>
       <elf-symbol name='cpufreq_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8658dd2'/>
       <elf-symbol name='cpuidle_governor_latency_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc319717f'/>
@@ -951,7 +949,6 @@
       <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d163a52'/>
       <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3593685'/>
       <elf-symbol name='device_match_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x636e87d0'/>
-      <elf-symbol name='device_match_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f0076c'/>
       <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x680b8786'/>
       <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x257d03e0'/>
       <elf-symbol name='device_property_read_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d13279'/>
@@ -1591,13 +1588,13 @@
       <elf-symbol name='get_random_bytes_arch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d830297'/>
       <elf-symbol name='get_random_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36dc10c'/>
       <elf-symbol name='get_sg_io_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1de4ccb2'/>
-      <elf-symbol name='get_task_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83e387a7'/>
+      <elf-symbol name='get_task_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f483661'/>
       <elf-symbol name='get_thermal_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaab3a2db'/>
       <elf-symbol name='get_tree_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c84477f'/>
       <elf-symbol name='get_unused_fd_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa843805a'/>
-      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4413fe2b'/>
-      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed8f5503'/>
-      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81def43a'/>
+      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5a53fc'/>
+      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9ff91e'/>
+      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ab0880a'/>
       <elf-symbol name='get_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58adb05c'/>
       <elf-symbol name='get_zeroed_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09b5d9a'/>
       <elf-symbol name='gether_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8878cfa6'/>
@@ -1616,11 +1613,6 @@
       <elf-symbol name='gether_set_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48400604'/>
       <elf-symbol name='gether_setup_name_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76946226'/>
       <elf-symbol name='glob_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5009c71d'/>
-      <elf-symbol name='gnss_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc231a1c0'/>
-      <elf-symbol name='gnss_deregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19e2eae7'/>
-      <elf-symbol name='gnss_insert_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88173920'/>
-      <elf-symbol name='gnss_put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c3f211b'/>
-      <elf-symbol name='gnss_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbac87a71'/>
       <elf-symbol name='gov_attr_set_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31439123'/>
       <elf-symbol name='gov_attr_set_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x705fcd9c'/>
       <elf-symbol name='gov_attr_set_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4722f56'/>
@@ -1763,7 +1755,6 @@
       <elf-symbol name='idr_get_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc57c48a3'/>
       <elf-symbol name='idr_preload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x954f099c'/>
       <elf-symbol name='idr_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7665a95b'/>
-      <elf-symbol name='idr_replace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b82b9a1'/>
       <elf-symbol name='ieee80211_alloc_hw_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57b028c0'/>
       <elf-symbol name='ieee80211_ap_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1282c4ec'/>
       <elf-symbol name='ieee80211_beacon_cntdwn_is_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe13a572f'/>
@@ -2059,10 +2050,6 @@
       <elf-symbol name='kvmalloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x599fb41c'/>
       <elf-symbol name='led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b946d9d'/>
       <elf-symbol name='led_classdev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d623c9'/>
-      <elf-symbol name='led_set_brightness_nosleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fd16e9d'/>
-      <elf-symbol name='led_trigger_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7d92614'/>
-      <elf-symbol name='led_trigger_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3279075'/>
-      <elf-symbol name='led_trigger_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe30d40dd'/>
       <elf-symbol name='list_sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe091c977'/>
       <elf-symbol name='llist_add_batch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a1840e'/>
       <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ba60f8a'/>
@@ -2131,7 +2118,7 @@
       <elf-symbol name='mmc_app_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe30e03f9'/>
       <elf-symbol name='mmc_calc_max_discard' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x157af272'/>
       <elf-symbol name='mmc_can_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x650fa3e'/>
-      <elf-symbol name='mmc_can_gpio_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x307567d7'/>
+      <elf-symbol name='mmc_can_gpio_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa104f6b'/>
       <elf-symbol name='mmc_can_secure_erase_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8be4908a'/>
       <elf-symbol name='mmc_can_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadd088f6'/>
       <elf-symbol name='mmc_cmdq_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd09f7fb9'/>
@@ -2150,11 +2137,11 @@
       <elf-symbol name='mmc_free_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbbaacc3'/>
       <elf-symbol name='mmc_get_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0aa9d75'/>
       <elf-symbol name='mmc_get_ext_csd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59d16b1b'/>
-      <elf-symbol name='mmc_gpio_get_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37fd102f'/>
-      <elf-symbol name='mmc_gpio_get_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85f28fb7'/>
-      <elf-symbol name='mmc_gpiod_request_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x884382ef'/>
-      <elf-symbol name='mmc_gpiod_request_cd_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cc52a1a'/>
-      <elf-symbol name='mmc_gpiod_request_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x570e418c'/>
+      <elf-symbol name='mmc_gpio_get_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864aaad9'/>
+      <elf-symbol name='mmc_gpio_get_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacedcb35'/>
+      <elf-symbol name='mmc_gpiod_request_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff3c392b'/>
+      <elf-symbol name='mmc_gpiod_request_cd_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5db921f9'/>
+      <elf-symbol name='mmc_gpiod_request_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41e2b841'/>
       <elf-symbol name='mmc_hw_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x352dfd83'/>
       <elf-symbol name='mmc_of_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x848cca88'/>
       <elf-symbol name='mmc_of_parse_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe87732c4'/>
@@ -2291,8 +2278,8 @@
       <elf-symbol name='of_find_backlight_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x901d67d8'/>
       <elf-symbol name='of_find_compatible_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4828f51'/>
       <elf-symbol name='of_find_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a52d3dd'/>
-      <elf-symbol name='of_find_i2c_adapter_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cce7694'/>
-      <elf-symbol name='of_find_i2c_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b8cee43'/>
+      <elf-symbol name='of_find_i2c_adapter_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x425d1e37'/>
+      <elf-symbol name='of_find_i2c_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x860438c3'/>
       <elf-symbol name='of_find_matching_node_and_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc49236c8'/>
       <elf-symbol name='of_find_mipi_dsi_host_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x940bf934'/>
       <elf-symbol name='of_find_node_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64df0412'/>
@@ -2475,9 +2462,9 @@
       <elf-symbol name='phy_set_mode_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2176859d'/>
       <elf-symbol name='pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1d07b6a'/>
       <elf-symbol name='pin_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f47b30'/>
-      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf084c23b'/>
-      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52be154d'/>
-      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccbd8eea'/>
+      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3e55532'/>
+      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfb2b40a'/>
+      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35db23f0'/>
       <elf-symbol name='pinconf_generic_dt_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f84483f'/>
       <elf-symbol name='pinconf_generic_dt_node_to_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ed99bb2'/>
       <elf-symbol name='pinctrl_add_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93f9fca6'/>
@@ -2539,7 +2526,7 @@
       <elf-symbol name='pm_system_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c0215f2'/>
       <elf-symbol name='pm_wakeup_dev_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff1bbf5'/>
       <elf-symbol name='pm_wakeup_ws_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5615cf19'/>
-      <elf-symbol name='policy_has_boost_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8e4961e'/>
+      <elf-symbol name='policy_has_boost_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33493944'/>
       <elf-symbol name='power_supply_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a76c3ea'/>
       <elf-symbol name='power_supply_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40503578'/>
       <elf-symbol name='power_supply_get_by_phandle_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd7ead3d'/>
@@ -2708,7 +2695,7 @@
       <elf-symbol name='release_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6d09aa9'/>
       <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20c82de7'/>
       <elf-symbol name='remap_pfn_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef15865'/>
-      <elf-symbol name='remap_vmalloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97b9765e'/>
+      <elf-symbol name='remap_vmalloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8668b1ed'/>
       <elf-symbol name='remove_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad4e6259'/>
       <elf-symbol name='remove_proc_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2671b596'/>
       <elf-symbol name='remove_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37110088'/>
@@ -2740,18 +2727,18 @@
       <elf-symbol name='rpmsg_send' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b04d9fb'/>
       <elf-symbol name='rpmsg_trysend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a81e62'/>
       <elf-symbol name='rpmsg_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba5d396'/>
-      <elf-symbol name='rproc_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91dd4dea'/>
-      <elf-symbol name='rproc_add_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba86108'/>
-      <elf-symbol name='rproc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x111f8d16'/>
+      <elf-symbol name='rproc_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb0039ba'/>
+      <elf-symbol name='rproc_add_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41c33a3c'/>
+      <elf-symbol name='rproc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811934db'/>
       <elf-symbol name='rproc_coredump_add_custom_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4e2f7d6'/>
       <elf-symbol name='rproc_coredump_add_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68b1f9fb'/>
       <elf-symbol name='rproc_coredump_set_elf_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bdb8b0f'/>
-      <elf-symbol name='rproc_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ab6fd6a'/>
+      <elf-symbol name='rproc_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cb6e4cf'/>
       <elf-symbol name='rproc_elf_get_boot_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a921573'/>
-      <elf-symbol name='rproc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9ca1558'/>
-      <elf-symbol name='rproc_get_by_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaba85de7'/>
-      <elf-symbol name='rproc_remove_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd23d58c7'/>
-      <elf-symbol name='rproc_report_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc80391f'/>
+      <elf-symbol name='rproc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a5f80d5'/>
+      <elf-symbol name='rproc_get_by_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef42e80'/>
+      <elf-symbol name='rproc_remove_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x919e0ce8'/>
+      <elf-symbol name='rproc_report_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb88993ff'/>
       <elf-symbol name='rt_mutex_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a7a4e43'/>
       <elf-symbol name='rt_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa9e08a'/>
       <elf-symbol name='rt_mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdce6bd63'/>
@@ -2813,20 +2800,20 @@
       <elf-symbol name='scsi_set_sense_information' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818416e1'/>
       <elf-symbol name='scsi_unblock_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f93021'/>
       <elf-symbol name='sdev_prefix_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21efb8fa'/>
-      <elf-symbol name='sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f226ba'/>
-      <elf-symbol name='sdhci_cleanup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf86c2f3'/>
-      <elf-symbol name='sdhci_cqe_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf18e5b9e'/>
-      <elf-symbol name='sdhci_cqe_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5ad7c4f'/>
-      <elf-symbol name='sdhci_cqe_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ececbb'/>
-      <elf-symbol name='sdhci_enable_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2208baa7'/>
+      <elf-symbol name='sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29080604'/>
+      <elf-symbol name='sdhci_cleanup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b0223d7'/>
+      <elf-symbol name='sdhci_cqe_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31eab3b7'/>
+      <elf-symbol name='sdhci_cqe_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5581e596'/>
+      <elf-symbol name='sdhci_cqe_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aad6071'/>
+      <elf-symbol name='sdhci_enable_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86f4637c'/>
       <elf-symbol name='sdhci_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84e8190c'/>
       <elf-symbol name='sdhci_pltfm_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade956dc'/>
       <elf-symbol name='sdhci_pltfm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1780fad9'/>
-      <elf-symbol name='sdhci_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d61ff9'/>
-      <elf-symbol name='sdhci_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fc697b3'/>
-      <elf-symbol name='sdhci_set_bus_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87cb0ecc'/>
-      <elf-symbol name='sdhci_set_power_noreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5abbc73'/>
-      <elf-symbol name='sdhci_setup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe52510e3'/>
+      <elf-symbol name='sdhci_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4413ba3f'/>
+      <elf-symbol name='sdhci_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6691a241'/>
+      <elf-symbol name='sdhci_set_bus_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b225ac2'/>
+      <elf-symbol name='sdhci_set_power_noreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9abc391e'/>
+      <elf-symbol name='sdhci_setup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e5b40d'/>
       <elf-symbol name='sdio_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169a2b7d'/>
       <elf-symbol name='sdio_disable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb242c14c'/>
       <elf-symbol name='sdio_enable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac1d714c'/>
@@ -2843,9 +2830,6 @@
       <elf-symbol name='sdio_signal_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab92b8e7'/>
       <elf-symbol name='sdio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x209c631f'/>
       <elf-symbol name='sdio_writesb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3d81a78'/>
-      <elf-symbol name='securityfs_create_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d63716b'/>
-      <elf-symbol name='securityfs_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc692eb2e'/>
-      <elf-symbol name='securityfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f4b809e'/>
       <elf-symbol name='send_sig_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3db1f6cc'/>
       <elf-symbol name='seq_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefb9b198'/>
       <elf-symbol name='seq_lseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f2a5d37'/>
@@ -2858,13 +2842,6 @@
       <elf-symbol name='seq_release_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30af181'/>
       <elf-symbol name='seq_vprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47353f1f'/>
       <elf-symbol name='seq_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7654114'/>
-      <elf-symbol name='serdev_device_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87ae9c94'/>
-      <elf-symbol name='serdev_device_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5401725'/>
-      <elf-symbol name='serdev_device_set_baudrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e514527'/>
-      <elf-symbol name='serdev_device_set_flow_control' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b4c958e'/>
-      <elf-symbol name='serdev_device_wait_until_sent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1dce889f'/>
-      <elf-symbol name='serdev_device_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe84b065'/>
-      <elf-symbol name='serdev_device_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e85d4cb'/>
       <elf-symbol name='serio_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f268e5a'/>
       <elf-symbol name='serio_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51164765'/>
       <elf-symbol name='serio_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x432e9a5e'/>
@@ -3210,7 +3187,7 @@
       <elf-symbol name='tasklet_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa07d1b3c'/>
       <elf-symbol name='tcpci_get_tcpm_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe111953'/>
       <elf-symbol name='tcpci_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f497a3c'/>
-      <elf-symbol name='tcpci_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73c805f5'/>
+      <elf-symbol name='tcpci_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa263756'/>
       <elf-symbol name='tcpci_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc529e32e'/>
       <elf-symbol name='tcpm_cc_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc37b9769'/>
       <elf-symbol name='tcpm_is_toggling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd974a755'/>
@@ -3320,7 +3297,7 @@
       <elf-symbol name='uio_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51bcc00'/>
       <elf-symbol name='unlock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfdf1a93'/>
       <elf-symbol name='unmap_mapping_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3037d1d'/>
-      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5acba20b'/>
+      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf607ac6b'/>
       <elf-symbol name='unregister_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5a459dc'/>
       <elf-symbol name='unregister_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a76434d'/>
       <elf-symbol name='unregister_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091b333'/>
@@ -3598,13 +3575,13 @@
       <elf-symbol name='vm_get_page_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c91e17c'/>
       <elf-symbol name='vm_iomap_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2e3b3af'/>
       <elf-symbol name='vm_map_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9232b7'/>
-      <elf-symbol name='vm_map_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b4d5a03'/>
+      <elf-symbol name='vm_map_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24b8b753'/>
       <elf-symbol name='vm_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f12bcd'/>
       <elf-symbol name='vm_unmap_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd2571'/>
       <elf-symbol name='vmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ee688f'/>
-      <elf-symbol name='vmalloc_to_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x547f5759'/>
+      <elf-symbol name='vmalloc_to_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ea1ffc1'/>
       <elf-symbol name='vmalloc_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5635a60a'/>
-      <elf-symbol name='vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4667155b'/>
+      <elf-symbol name='vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47da008a'/>
       <elf-symbol name='vmemdup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90576ec4'/>
       <elf-symbol name='vmf_insert_mixed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb5dd91'/>
       <elf-symbol name='vmf_insert_pfn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ef2e98e'/>
@@ -3737,52 +3714,52 @@
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       <elf-symbol name='__tracepoint_android_rvh_update_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae1dc28'/>
       <elf-symbol name='__tracepoint_android_rvh_util_est_update' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c941f9'/>
-      <elf-symbol name='__tracepoint_android_vh___get_user_pages_remote' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bfad40'/>
-      <elf-symbol name='__tracepoint_android_vh_aes_decrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde5b1cc7'/>
-      <elf-symbol name='__tracepoint_android_vh_aes_encrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10f648a3'/>
-      <elf-symbol name='__tracepoint_android_vh_aes_expandkey' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7274615'/>
-      <elf-symbol name='__tracepoint_android_vh_arch_set_freq_scale' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31d4f5d9'/>
-      <elf-symbol name='__tracepoint_android_vh_cma_alloc_finish' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13105ce6'/>
-      <elf-symbol name='__tracepoint_android_vh_cma_alloc_start' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc79303a7'/>
-      <elf-symbol name='__tracepoint_android_vh_cpu_idle_enter' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefbedb90'/>
-      <elf-symbol name='__tracepoint_android_vh_cpu_idle_exit' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd391e1ed'/>
+      <elf-symbol name='__tracepoint_android_vh___get_user_pages_remote' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0375f2c'/>
+      <elf-symbol name='__tracepoint_android_vh_aes_decrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64eaf879'/>
+      <elf-symbol name='__tracepoint_android_vh_aes_encrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85db9ebb'/>
+      <elf-symbol name='__tracepoint_android_vh_aes_expandkey' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71396455'/>
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+      <elf-symbol name='__tracepoint_android_vh_cma_alloc_finish' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa90e8afe'/>
+      <elf-symbol name='__tracepoint_android_vh_cma_alloc_start' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe870063b'/>
+      <elf-symbol name='__tracepoint_android_vh_cpu_idle_enter' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656d334c'/>
+      <elf-symbol name='__tracepoint_android_vh_cpu_idle_exit' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51b29892'/>
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-      <elf-symbol name='__tracepoint_android_vh_mmc_blk_reset' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28c3f8b2'/>
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-      <elf-symbol name='__tracepoint_android_vh_rmqueue' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c074b9'/>
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+      <elf-symbol name='__tracepoint_android_vh_mmc_blk_reset' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x248c70ab'/>
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@@ -67730,7 +67499,7 @@
           <var-decl name='hsv_enc' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='512' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='833' column='1' id='ac5ab5d5'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='833' column='1' id='ac5ab5d4'>
         <data-member access='public'>
           <var-decl name='discrete' type-id='10186cf6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='834' column='1'/>
         </data-member>
@@ -67738,7 +67507,7 @@
           <var-decl name='stepwise' type-id='5a62dd2b' visibility='default' filepath='include/uapi/linux/videodev2.h' line='835' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='863' column='1' id='ac5ab5d6'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='863' column='1' id='ac5ab5d5'>
         <data-member access='public'>
           <var-decl name='discrete' type-id='5f37256e' visibility='default' filepath='include/uapi/linux/videodev2.h' line='864' column='1'/>
         </data-member>
@@ -67746,7 +67515,7 @@
           <var-decl name='stepwise' type-id='99cd0646' visibility='default' filepath='include/uapi/linux/videodev2.h' line='865' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='992' column='1' id='ac5ab5d7'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='992' column='1' id='ac5ab5d6'>
         <data-member access='public'>
           <var-decl name='mem_offset' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='993' column='1'/>
         </data-member>
@@ -67757,7 +67526,7 @@
           <var-decl name='fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='995' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1049' column='1' id='ac5ab5d8'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1049' column='1' id='ac5ab5d7'>
         <data-member access='public'>
           <var-decl name='offset' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1050' column='1'/>
         </data-member>
@@ -67771,7 +67540,7 @@
           <var-decl name='fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1053' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1057' column='1' id='ac5ab5d9'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1057' column='1' id='ac5ab5d8'>
         <data-member access='public'>
           <var-decl name='request_fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1058' column='1'/>
         </data-member>
@@ -67779,7 +67548,7 @@
           <var-decl name='reserved' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1059' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1568' column='1' id='ac5ab5da'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1568' column='1' id='ac5ab5d9'>
         <data-member access='public'>
           <var-decl name='bt' type-id='ecc13ba0' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1569' column='1'/>
         </data-member>
@@ -67787,7 +67556,7 @@
           <var-decl name='reserved' type-id='734a963c' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1570' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1634' column='1' id='ac5ab5db'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1634' column='1' id='ac5ab5da'>
         <data-member access='public'>
           <var-decl name='bt' type-id='e5bfe593' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1635' column='1'/>
         </data-member>
@@ -67795,7 +67564,7 @@
           <var-decl name='raw_data' type-id='734a963c' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1636' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1729' column='1' id='ac5ab5dc'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1729' column='1' id='ac5ab5db'>
         <data-member access='public'>
           <var-decl name='value' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1730' column='1'/>
         </data-member>
@@ -67821,12 +67590,12 @@
           <var-decl name='ptr' type-id='eaa32e2f' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1737' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1742' column='1' id='ac5ab5dd'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1742' column='1' id='ac5ab5dc'>
         <data-member access='public'>
           <var-decl name='which' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1746' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1829' column='1' id='ac5ab5de'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1829' column='1' id='ac5ab5dd'>
         <data-member access='public'>
           <var-decl name='name' type-id='7e67d89d' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1830' column='1'/>
         </data-member>
@@ -67834,12 +67603,12 @@
           <var-decl name='value' type-id='49659421' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1831' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2036' column='1' id='ac5ab5df'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2036' column='1' id='ac5ab5de'>
         <data-member access='public'>
           <var-decl name='raw' type-id='e7f43fa1' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2039' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2072' column='1' id='ac5ab5e0'>
+      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2072' column='1' id='ac5ab5df'>
         <data-member access='public'>
           <var-decl name='stop' type-id='e7f43fa2' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2075' column='1'/>
         </data-member>
@@ -67850,7 +67619,7 @@
           <var-decl name='raw' type-id='e7f43fa4' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2089' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='8' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2261' column='1' id='ac5ab5e1'>
+      <union-decl name='__anonymous_union__' size-in-bits='8' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2261' column='1' id='ac5ab5e0'>
         <data-member access='public'>
           <var-decl name='ycbcr_enc' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2262' column='1'/>
         </data-member>
@@ -67858,7 +67627,7 @@
           <var-decl name='hsv_enc' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2263' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2303' column='1' id='ac5ab5e2'>
+      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2303' column='1' id='ac5ab5e1'>
         <data-member access='public'>
           <var-decl name='pix' type-id='e8f6102b' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2304' column='1'/>
         </data-member>
@@ -67884,7 +67653,7 @@
           <var-decl name='raw_data' type-id='0530f1a6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2311' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2319' column='1' id='ac5ab5e3'>
+      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2319' column='1' id='ac5ab5e2'>
         <data-member access='public'>
           <var-decl name='capture' type-id='f88a5c22' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2320' column='1'/>
         </data-member>
@@ -67895,7 +67664,7 @@
           <var-decl name='raw_data' type-id='0530f1a6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2322' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='283' column='1' id='ac5ab5e4'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='283' column='1' id='ac5ab5e3'>
         <data-member access='public'>
           <var-decl name='step' type-id='91ce1af9' visibility='default' filepath='include/media/v4l2-ctrls.h' line='284' column='1'/>
         </data-member>
@@ -67903,7 +67672,7 @@
           <var-decl name='menu_skip_mask' type-id='91ce1af9' visibility='default' filepath='include/media/v4l2-ctrls.h' line='285' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='287' column='1' id='ac5ab5e5'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='287' column='1' id='ac5ab5e4'>
         <data-member access='public'>
           <var-decl name='qmenu' type-id='13956559' visibility='default' filepath='include/media/v4l2-ctrls.h' line='288' column='1'/>
         </data-member>
@@ -67911,7 +67680,7 @@
           <var-decl name='qmenu_int' type-id='43ae54cf' visibility='default' filepath='include/media/v4l2-ctrls.h' line='289' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/videobuf2-core.h' line='181' column='1' id='ac5ab5e6'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/videobuf2-core.h' line='181' column='1' id='ac5ab5e5'>
         <data-member access='public'>
           <var-decl name='offset' type-id='f0981eeb' visibility='default' filepath='include/media/videobuf2-core.h' line='182' column='1'/>
         </data-member>
@@ -67922,7 +67691,7 @@
           <var-decl name='fd' type-id='95e97e5e' visibility='default' filepath='include/media/videobuf2-core.h' line='184' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='791' column='1' id='ac5ab5e7'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='791' column='1' id='ac5ab5e6'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f43fa6' visibility='default' filepath='include/linux/cgroup-defs.h' line='793' column='1'/>
         </data-member>
@@ -67930,7 +67699,7 @@
           <var-decl name='val' type-id='91ce1af9' visibility='default' filepath='include/linux/cgroup-defs.h' line='811' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='359' column='1' id='ac5ab5e8'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='359' column='1' id='ac5ab5e7'>
         <data-member access='public'>
           <var-decl name='buf' type-id='26a90f95' visibility='default' filepath='include/linux/fs.h' line='360' column='1'/>
         </data-member>
@@ -67938,7 +67707,7 @@
           <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/fs.h' line='361' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/socket.h' line='60' column='1' id='ac5ab5e9'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/socket.h' line='60' column='1' id='ac5ab5e8'>
         <data-member access='public'>
           <var-decl name='msg_control' type-id='eaa32e2f' visibility='default' filepath='include/linux/socket.h' line='61' column='1'/>
         </data-member>
@@ -67946,7 +67715,7 @@
           <var-decl name='msg_control_user' type-id='eaa32e2f' visibility='default' filepath='include/linux/socket.h' line='62' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/sockptr.h' line='15' column='1' id='ac5ab5ea'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/sockptr.h' line='15' column='1' id='ac5ab5e9'>
         <data-member access='public'>
           <var-decl name='kernel' type-id='eaa32e2f' visibility='default' filepath='include/linux/sockptr.h' line='16' column='1'/>
         </data-member>
@@ -67954,7 +67723,7 @@
           <var-decl name='user' type-id='eaa32e2f' visibility='default' filepath='include/linux/sockptr.h' line='17' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='704' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='175' column='1' id='ac5ab5eb'>
+      <union-decl name='__anonymous_union__' size-in-bits='704' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='175' column='1' id='ac5ab5ea'>
         <data-member access='public'>
           <var-decl name='__fl_common' type-id='184ee240' visibility='default' filepath='include/net/flow.h' line='176' column='1'/>
         </data-member>
@@ -67968,7 +67737,7 @@
           <var-decl name='dn' type-id='83eba552' visibility='default' filepath='include/net/flow.h' line='179' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='168' column='1' id='ac5ab5ec'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='168' column='1' id='ac5ab5eb'>
         <data-member access='public'>
           <var-decl name='skc_addrpair' type-id='d17a6eed' visibility='default' filepath='include/net/sock.h' line='169' column='1'/>
         </data-member>
@@ -67976,7 +67745,7 @@
           <var-decl name='' type-id='e7f43fab' visibility='default' filepath='include/net/sock.h' line='170' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='175' column='1' id='ac5ab5ed'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='175' column='1' id='ac5ab5ec'>
         <data-member access='public'>
           <var-decl name='skc_hash' type-id='f0981eeb' visibility='default' filepath='include/net/sock.h' line='176' column='1'/>
         </data-member>
@@ -67984,7 +67753,7 @@
           <var-decl name='skc_u16hashes' type-id='810b4a17' visibility='default' filepath='include/net/sock.h' line='177' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='180' column='1' id='ac5ab5ee'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='180' column='1' id='ac5ab5ed'>
         <data-member access='public'>
           <var-decl name='skc_portpair' type-id='e7c2a649' visibility='default' filepath='include/net/sock.h' line='181' column='1'/>
         </data-member>
@@ -67992,7 +67761,7 @@
           <var-decl name='' type-id='e7f43fac' visibility='default' filepath='include/net/sock.h' line='182' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='195' column='1' id='ac5ab5ef'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='195' column='1' id='ac5ab5ee'>
         <data-member access='public'>
           <var-decl name='skc_bind_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='196' column='1'/>
         </data-member>
@@ -68000,7 +67769,7 @@
           <var-decl name='skc_portaddr_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='197' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='214' column='1' id='ac5ab5f0'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='214' column='1' id='ac5ab5ef'>
         <data-member access='public'>
           <var-decl name='skc_flags' type-id='7359adad' visibility='default' filepath='include/net/sock.h' line='215' column='1'/>
         </data-member>
@@ -68011,7 +67780,7 @@
           <var-decl name='skc_tw_dr' type-id='b7ab21fc' visibility='default' filepath='include/net/sock.h' line='217' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='226' column='1' id='ac5ab5f1'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='226' column='1' id='ac5ab5f0'>
         <data-member access='public'>
           <var-decl name='skc_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='227' column='1'/>
         </data-member>
@@ -68019,7 +67788,7 @@
           <var-decl name='skc_nulls_node' type-id='5bd248e7' visibility='default' filepath='include/net/sock.h' line='228' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='234' column='1' id='ac5ab5f2'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='234' column='1' id='ac5ab5f1'>
         <data-member access='public'>
           <var-decl name='skc_incoming_cpu' type-id='95e97e5e' visibility='default' filepath='include/net/sock.h' line='235' column='1'/>
         </data-member>
@@ -68030,7 +67799,7 @@
           <var-decl name='skc_tw_rcv_nxt' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='237' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='243' column='1' id='ac5ab5f3'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='243' column='1' id='ac5ab5f2'>
         <data-member access='public'>
           <var-decl name='skc_rxhash' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='244' column='1'/>
         </data-member>
@@ -68041,7 +67810,7 @@
           <var-decl name='skc_tw_snd_nxt' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='246' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='420' column='1' id='ac5ab5f4'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='420' column='1' id='ac5ab5f3'>
         <data-member access='public'>
           <var-decl name='sk_wq' type-id='99f34ac1' visibility='default' filepath='include/net/sock.h' line='421' column='1'/>
         </data-member>
@@ -68049,7 +67818,7 @@
           <var-decl name='sk_wq_raw' type-id='99f34ac1' visibility='default' filepath='include/net/sock.h' line='423' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='438' column='1' id='ac5ab5f5'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='438' column='1' id='ac5ab5f4'>
         <data-member access='public'>
           <var-decl name='sk_send_head' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='439' column='1'/>
         </data-member>
@@ -68057,7 +67826,7 @@
           <var-decl name='tcp_rtx_queue' type-id='dec44472' visibility='default' filepath='include/net/sock.h' line='440' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='1235' column='1' id='ac5ab5f6'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='1235' column='1' id='ac5ab5f5'>
         <data-member access='public'>
           <var-decl name='hashinfo' type-id='d7a1e3c2' visibility='default' filepath='include/net/sock.h' line='1236' column='1'/>
         </data-member>
@@ -68071,7 +67840,7 @@
           <var-decl name='smc_hash' type-id='aa8162a3' visibility='default' filepath='include/net/sock.h' line='1239' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='151' column='1' id='ac5ab5f7'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='151' column='1' id='ac5ab5f6'>
         <data-member access='public'>
           <var-decl name='gclist' type-id='03a4a074' visibility='default' filepath='include/net/xfrm.h' line='152' column='1'/>
         </data-member>
@@ -68079,7 +67848,7 @@
           <var-decl name='bydst' type-id='03a4a074' visibility='default' filepath='include/net/xfrm.h' line='153' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='108' column='1' id='ac5ab5f8'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='108' column='1' id='ac5ab5f7'>
         <data-member access='public'>
           <var-decl name='d_lru' type-id='72f469ec' visibility='default' filepath='include/linux/dcache.h' line='109' column='1'/>
         </data-member>
@@ -68087,7 +67856,7 @@
           <var-decl name='d_wait' type-id='03d48e96' visibility='default' filepath='include/linux/dcache.h' line='110' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='117' column='1' id='ac5ab5f9'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='117' column='1' id='ac5ab5f8'>
         <data-member access='public'>
           <var-decl name='d_alias' type-id='03a4a074' visibility='default' filepath='include/linux/dcache.h' line='118' column='1'/>
         </data-member>
@@ -68098,7 +67867,7 @@
           <var-decl name='d_rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/dcache.h' line='120' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/pinctrl/machine.h' line='72' column='1' id='ac5ab5fa'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/pinctrl/machine.h' line='72' column='1' id='ac5ab5f9'>
         <data-member access='public'>
           <var-decl name='mux' type-id='ad4dd73d' visibility='default' filepath='include/linux/pinctrl/machine.h' line='73' column='1'/>
         </data-member>
@@ -68106,7 +67875,7 @@
           <var-decl name='configs' type-id='687781fc' visibility='default' filepath='include/linux/pinctrl/machine.h' line='74' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='533' column='1' id='ac5ab5fb'>
+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='533' column='1' id='ac5ab5fa'>
         <data-member access='public'>
           <var-decl name='sr' type-id='18119fa5' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='534' column='1'/>
         </data-member>
@@ -68117,7 +67886,7 @@
           <var-decl name='qr' type-id='5fc79e81' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='536' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1' id='ac5ab5fc'>
+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1' id='ac5ab5fb'>
         <data-member access='public'>
           <var-decl name='sc' type-id='498490b9' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='76' column='1'/>
         </data-member>
@@ -68128,7 +67897,7 @@
           <var-decl name='uc' type-id='5fc79e81' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='78' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='124' column='1' id='ac5ab5fd'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='124' column='1' id='ac5ab5fc'>
         <data-member access='public'>
           <var-decl name='in' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='125' column='1'/>
         </data-member>
@@ -68136,7 +67905,7 @@
           <var-decl name='out' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='126' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fe'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fd'>
         <data-member access='public'>
           <var-decl name='kfifo' type-id='bbbc6c1e' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
         </data-member>
@@ -68156,7 +67925,7 @@
           <var-decl name='ptr_const' type-id='eaa32e2f' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1' id='ac5ab5ff'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1' id='ac5ab5fe'>
         <data-member access='public'>
           <var-decl name='vendor_ops' type-id='1e9ca7e3' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
         </data-member>
@@ -68164,11 +67933,11 @@
           <var-decl name='' type-id='e7f43fb9' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='ac5ab600' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
+          <var-decl name='' type-id='ac5ab5ff' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab600'/>
-      <union-decl name='__anonymous_union__' size-in-bits='224' is-anonymous='yes' visibility='default' filepath='include/linux/usb/pd.h' line='197' column='1' id='ac5ab601'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab5ff'/>
+      <union-decl name='__anonymous_union__' size-in-bits='224' is-anonymous='yes' visibility='default' filepath='include/linux/usb/pd.h' line='197' column='1' id='ac5ab600'>
         <data-member access='public'>
           <var-decl name='payload' type-id='e369592a' visibility='default' filepath='include/linux/usb/pd.h' line='198' column='1'/>
         </data-member>
@@ -68176,7 +67945,7 @@
           <var-decl name='ext_msg' type-id='9d90420f' visibility='default' filepath='include/linux/usb/pd.h' line='199' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fb.h' line='480' column='1' id='ac5ab602'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fb.h' line='480' column='1' id='ac5ab601'>
         <data-member access='public'>
           <var-decl name='screen_base' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='481' column='1'/>
         </data-member>
@@ -68184,7 +67953,7 @@
           <var-decl name='screen_buffer' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='482' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab603'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab602'>
         <data-member access='public'>
           <var-decl name='obj' type-id='c66f5ec5' visibility='default' filepath='include/linux/fsnotify_backend.h' line='362' column='1'/>
         </data-member>
@@ -68192,7 +67961,7 @@
           <var-decl name='destroy_next' type-id='994d9d61' visibility='default' filepath='include/linux/fsnotify_backend.h' line='364' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab604'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab603'>
         <data-member access='public'>
           <var-decl name='proc_ops' type-id='33d70f0f' visibility='default' filepath='fs/proc/internal.h' line='43' column='1'/>
         </data-member>
@@ -68200,7 +67969,7 @@
           <var-decl name='proc_dir_ops' type-id='61758ee5' visibility='default' filepath='fs/proc/internal.h' line='44' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab605'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab604'>
         <data-member access='public'>
           <var-decl name='seq_ops' type-id='943a1b48' visibility='default' filepath='fs/proc/internal.h' line='48' column='1'/>
         </data-member>
@@ -68208,7 +67977,7 @@
           <var-decl name='single_show' type-id='0131eb61' visibility='default' filepath='fs/proc/internal.h' line='49' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/splice.h' line='36' column='1' id='ac5ab606'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/splice.h' line='36' column='1' id='ac5ab605'>
         <data-member access='public'>
           <var-decl name='userptr' type-id='eaa32e2f' visibility='default' filepath='include/linux/splice.h' line='37' column='1'/>
         </data-member>
@@ -68219,7 +67988,7 @@
           <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/splice.h' line='39' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='14' column='1' id='ac5ab607'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='14' column='1' id='ac5ab606'>
         <data-member access='public'>
           <var-decl name='cnts' type-id='49178f86' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='15' column='1'/>
         </data-member>
@@ -68227,7 +67996,7 @@
           <var-decl name='' type-id='e7f43fbc' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='16' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/cred.h' line='149' column='1' id='ac5ab608'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/cred.h' line='149' column='1' id='ac5ab607'>
         <data-member access='public'>
           <var-decl name='non_rcu' type-id='95e97e5e' visibility='default' filepath='include/linux/cred.h' line='150' column='1'/>
         </data-member>
@@ -68235,7 +68004,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/cred.h' line='151' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='49' column='1' id='ac5ab609'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='49' column='1' id='ac5ab608'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f43fbd' visibility='default' filepath='include/linux/dcache.h' line='50' column='1'/>
         </data-member>
@@ -68243,7 +68012,7 @@
           <var-decl name='hash_len' type-id='91ce1af9' visibility='default' filepath='include/linux/dcache.h' line='53' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='334' column='1' id='ac5ab60a'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='334' column='1' id='ac5ab609'>
         <data-member access='public'>
           <var-decl name='ki_cookie' type-id='f0981eeb' visibility='default' filepath='include/linux/fs.h' line='335' column='1'/>
         </data-member>
@@ -68251,7 +68020,7 @@
           <var-decl name='ki_waitq' type-id='4be56288' visibility='default' filepath='include/linux/fs.h' line='336' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='932' column='1' id='ac5ab60b'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='932' column='1' id='ac5ab60a'>
         <data-member access='public'>
           <var-decl name='fu_llist' type-id='c5ccfee8' visibility='default' filepath='include/linux/fs.h' line='933' column='1'/>
         </data-member>
@@ -68259,7 +68028,7 @@
           <var-decl name='fu_rcuhead' type-id='e3d8ce29' visibility='default' filepath='include/linux/fs.h' line='934' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='1114' column='1' id='ac5ab60c'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='1114' column='1' id='ac5ab60b'>
         <data-member access='public'>
           <var-decl name='nfs_fl' type-id='17bacae5' visibility='default' filepath='include/linux/fs.h' line='1115' column='1'/>
         </data-member>
@@ -68270,7 +68039,7 @@
           <var-decl name='afs' type-id='e7f43fbe' visibility='default' filepath='include/linux/fs.h' line='1121' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/iocontext.h' line='83' column='1' id='ac5ab60d'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/iocontext.h' line='83' column='1' id='ac5ab60c'>
         <data-member access='public'>
           <var-decl name='q_node' type-id='72f469ec' visibility='default' filepath='include/linux/iocontext.h' line='84' column='1'/>
         </data-member>
@@ -68278,7 +68047,7 @@
           <var-decl name='__rcu_icq_cache' type-id='f3b4aca8' visibility='default' filepath='include/linux/iocontext.h' line='85' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/iocontext.h' line='87' column='1' id='ac5ab60e'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/iocontext.h' line='87' column='1' id='ac5ab60d'>
         <data-member access='public'>
           <var-decl name='ioc_node' type-id='03a4a074' visibility='default' filepath='include/linux/iocontext.h' line='88' column='1'/>
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@@ -68286,7 +68055,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/jump_label.h' line='102' column='1' id='ac5ab60e'>
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+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/kernfs.h' line='143' column='1' id='ac5ab60f'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='111' column='1' id='ac5ab610'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='202' column='1' id='ac5ab612'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/lockref.h' line='26' column='1' id='ac5ab615'>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/memremap.h' line='120' column='1' id='ac5ab616'>
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='81' column='1' id='ac5ab617'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/moduleparam.h' line='76' column='1' id='ac5ab61e'>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/percpu-rwsem.h' line='20' column='1' id='ac5ab61f'>
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/linux/quota.h' line='69' column='1' id='ac5ab620'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/skbuff.h' line='724' column='1' id='ac5ab621'>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/sysctl.h' line='132' column='1' id='ac5ab622'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='44' column='1' id='ac5ab624'>
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+      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/linux/user_namespace.h' line='26' column='1' id='ac5ab626'>
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+      <union-decl name='__anonymous_union__' size-in-bits='352' is-anonymous='yes' visibility='default' filepath='include/net/inet_frag.h' line='79' column='1' id='ac5ab627'>
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@@ -68550,7 +68319,7 @@
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           <var-decl name='proc_dops' type-id='1ee57353' visibility='default' filepath='fs/proc/internal.h' line='46' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='512'>
-          <var-decl name='' type-id='ac5ab605' visibility='default' filepath='fs/proc/internal.h' line='47' column='1'/>
+          <var-decl name='' type-id='ac5ab604' visibility='default' filepath='fs/proc/internal.h' line='47' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='576'>
           <var-decl name='write' type-id='7c2b18ab' visibility='default' filepath='fs/proc/internal.h' line='51' column='1'/>
@@ -106204,8 +105944,8 @@
         <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5270' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='__page_pinner_migration_failed' mangled-name='__page_pinner_migration_failed' filepath='mm/page_pinner.c' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_migration_failed'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_pinner.c' line='328' column='1'/>
+      <function-decl name='__page_pinner_put_page' mangled-name='__page_pinner_put_page' filepath='mm/page_pinner.c' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_put_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_pinner.c' line='321' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='__pci_register_driver' mangled-name='__pci_register_driver' filepath='drivers/pci/pci-driver.c' line='1378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pci_register_driver'>
@@ -106517,566 +106257,570 @@
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_arm64_serror_panic' mangled-name='__traceiter_android_rvh_arm64_serror_panic' filepath='include/trace/hooks/traps.h' line='24' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_arm64_serror_panic'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
-        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='24' column='1'/>
+      <function-decl name='__traceiter_android_rvh_arm64_serror_panic' mangled-name='__traceiter_android_rvh_arm64_serror_panic' filepath='include/trace/hooks/traps.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_arm64_serror_panic'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='23' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='23' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='23' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_attach_entity_load_avg' mangled-name='__traceiter_android_rvh_attach_entity_load_avg' filepath='include/trace/hooks/sched.h' line='408' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_attach_entity_load_avg'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='408' column='1'/>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='408' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='408' column='1'/>
+      <function-decl name='__traceiter_android_rvh_attach_entity_load_avg' mangled-name='__traceiter_android_rvh_attach_entity_load_avg' filepath='include/trace/hooks/sched.h' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_attach_entity_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='407' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='407' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='407' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_bad_mode' mangled-name='__traceiter_android_rvh_bad_mode' filepath='include/trace/hooks/traps.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_bad_mode'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
-        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
-        <parameter type-id='95e97e5e' name='reason' filepath='include/trace/hooks/traps.h' line='20' column='1'/>
+      <function-decl name='__traceiter_android_rvh_bad_mode' mangled-name='__traceiter_android_rvh_bad_mode' filepath='include/trace/hooks/traps.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_bad_mode'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='19' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='19' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/traps.h' line='19' column='1'/>
+        <parameter type-id='95e97e5e' name='reason' filepath='include/trace/hooks/traps.h' line='19' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_cgroup_force_kthread_migration' mangled-name='__traceiter_android_rvh_cgroup_force_kthread_migration' filepath='include/trace/hooks/cgroup.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cgroup_force_kthread_migration'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
-        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
-        <parameter type-id='46ff135d' name='dst_cgrp' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
-        <parameter type-id='d8e6b335' name='force_migration' filepath='include/trace/hooks/cgroup.h' line='18' column='1'/>
+      <function-decl name='__traceiter_android_rvh_cgroup_force_kthread_migration' mangled-name='__traceiter_android_rvh_cgroup_force_kthread_migration' filepath='include/trace/hooks/cgroup.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cgroup_force_kthread_migration'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cgroup.h' line='17' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/cgroup.h' line='17' column='1'/>
+        <parameter type-id='46ff135d' name='dst_cgrp' filepath='include/trace/hooks/cgroup.h' line='17' column='1'/>
+        <parameter type-id='d8e6b335' name='force_migration' filepath='include/trace/hooks/cgroup.h' line='17' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_check_preempt_wakeup' mangled-name='__traceiter_android_rvh_check_preempt_wakeup' filepath='include/trace/hooks/sched.h' line='269' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_check_preempt_wakeup'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='d8e6b335' name='preempt' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='d8e6b335' name='nopreempt' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='ff2b3d10' name='pse' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='95e97e5e' name='next_buddy_marked' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
-        <parameter type-id='f0981eeb' name='granularity' filepath='include/trace/hooks/sched.h' line='269' column='1'/>
+      <function-decl name='__traceiter_android_rvh_check_preempt_wakeup' mangled-name='__traceiter_android_rvh_check_preempt_wakeup' filepath='include/trace/hooks/sched.h' line='268' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_check_preempt_wakeup'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='d8e6b335' name='preempt' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='d8e6b335' name='nopreempt' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='ff2b3d10' name='pse' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='95e97e5e' name='next_buddy_marked' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
+        <parameter type-id='f0981eeb' name='granularity' filepath='include/trace/hooks/sched.h' line='268' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_cpu_cgroup_online' mangled-name='__traceiter_android_rvh_cpu_cgroup_online' filepath='include/trace/hooks/sched.h' line='212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cpu_cgroup_online'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='212' column='1'/>
-        <parameter type-id='cfff5953' name='css' filepath='include/trace/hooks/sched.h' line='212' column='1'/>
+      <function-decl name='__traceiter_android_rvh_cpu_cgroup_online' mangled-name='__traceiter_android_rvh_cpu_cgroup_online' filepath='include/trace/hooks/sched.h' line='211' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cpu_cgroup_online'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='211' column='1'/>
+        <parameter type-id='cfff5953' name='css' filepath='include/trace/hooks/sched.h' line='211' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_cpu_overutilized' mangled-name='__traceiter_android_rvh_cpu_overutilized' filepath='include/trace/hooks/sched.h' line='124' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cpu_overutilized'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='124' column='1'/>
-        <parameter type-id='95e97e5e' name='cpu' filepath='include/trace/hooks/sched.h' line='124' column='1'/>
-        <parameter type-id='7292109c' name='overutilized' filepath='include/trace/hooks/sched.h' line='124' column='1'/>
+      <function-decl name='__traceiter_android_rvh_cpu_overutilized' mangled-name='__traceiter_android_rvh_cpu_overutilized' filepath='include/trace/hooks/sched.h' line='123' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_cpu_overutilized'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='123' column='1'/>
+        <parameter type-id='95e97e5e' name='cpu' filepath='include/trace/hooks/sched.h' line='123' column='1'/>
+        <parameter type-id='7292109c' name='overutilized' filepath='include/trace/hooks/sched.h' line='123' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_dequeue_task' mangled-name='__traceiter_android_rvh_dequeue_task' filepath='include/trace/hooks/sched.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_dequeue_task'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
-        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='39' column='1'/>
+      <function-decl name='__traceiter_android_rvh_dequeue_task' mangled-name='__traceiter_android_rvh_dequeue_task' filepath='include/trace/hooks/sched.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_dequeue_task'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='38' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='38' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='38' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='38' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_dequeue_task_fair' mangled-name='__traceiter_android_rvh_dequeue_task_fair' filepath='include/trace/hooks/sched.h' line='372' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_dequeue_task_fair'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
-        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='372' column='1'/>
+      <function-decl name='__traceiter_android_rvh_dequeue_task_fair' mangled-name='__traceiter_android_rvh_dequeue_task_fair' filepath='include/trace/hooks/sched.h' line='371' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_dequeue_task_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='371' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='371' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='371' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='371' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_detach_entity_load_avg' mangled-name='__traceiter_android_rvh_detach_entity_load_avg' filepath='include/trace/hooks/sched.h' line='412' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_detach_entity_load_avg'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='412' column='1'/>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='412' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='412' column='1'/>
+      <function-decl name='__traceiter_android_rvh_detach_entity_load_avg' mangled-name='__traceiter_android_rvh_detach_entity_load_avg' filepath='include/trace/hooks/sched.h' line='411' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_detach_entity_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='411' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='411' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='411' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_die_kernel_fault' mangled-name='__traceiter_android_rvh_die_kernel_fault' filepath='include/trace/hooks/fault.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_die_kernel_fault'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
-        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
-        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='15' column='1'/>
+      <function-decl name='__traceiter_android_rvh_die_kernel_fault' mangled-name='__traceiter_android_rvh_die_kernel_fault' filepath='include/trace/hooks/fault.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_die_kernel_fault'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='14' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='14' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='14' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='14' column='1'/>
+        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='14' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_do_mem_abort' mangled-name='__traceiter_android_rvh_do_mem_abort' filepath='include/trace/hooks/fault.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_mem_abort'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
-        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
-        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='23' column='1'/>
+      <function-decl name='__traceiter_android_rvh_do_mem_abort' mangled-name='__traceiter_android_rvh_do_mem_abort' filepath='include/trace/hooks/fault.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_mem_abort'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='22' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='22' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='22' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='22' column='1'/>
+        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='22' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_do_sea' mangled-name='__traceiter_android_rvh_do_sea' filepath='include/trace/hooks/fault.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_sea'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
-        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
-        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='19' column='1'/>
+      <function-decl name='__traceiter_android_rvh_do_sea' mangled-name='__traceiter_android_rvh_do_sea' filepath='include/trace/hooks/fault.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_sea'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='18' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='18' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='18' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='18' column='1'/>
+        <parameter type-id='80f4b756' name='msg' filepath='include/trace/hooks/fault.h' line='18' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_do_sp_pc_abort' mangled-name='__traceiter_android_rvh_do_sp_pc_abort' filepath='include/trace/hooks/fault.h' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_sp_pc_abort'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
-        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
-        <parameter type-id='b50a4934' name='user' filepath='include/trace/hooks/fault.h' line='27' column='1'/>
+      <function-decl name='__traceiter_android_rvh_do_sp_pc_abort' mangled-name='__traceiter_android_rvh_do_sp_pc_abort' filepath='include/trace/hooks/fault.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_sp_pc_abort'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fault.h' line='26' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/fault.h' line='26' column='1'/>
+        <parameter type-id='f0981eeb' name='esr' filepath='include/trace/hooks/fault.h' line='26' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='include/trace/hooks/fault.h' line='26' column='1'/>
+        <parameter type-id='b50a4934' name='user' filepath='include/trace/hooks/fault.h' line='26' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_do_undefinstr' mangled-name='__traceiter_android_rvh_do_undefinstr' filepath='include/trace/hooks/traps.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_undefinstr'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='15' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='15' column='1'/>
-        <parameter type-id='b50a4934' name='user' filepath='include/trace/hooks/traps.h' line='15' column='1'/>
+      <function-decl name='__traceiter_android_rvh_do_undefinstr' mangled-name='__traceiter_android_rvh_do_undefinstr' filepath='include/trace/hooks/traps.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_do_undefinstr'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='14' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='14' column='1'/>
+        <parameter type-id='b50a4934' name='user' filepath='include/trace/hooks/traps.h' line='14' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_enqueue_task' mangled-name='__traceiter_android_rvh_enqueue_task' filepath='include/trace/hooks/sched.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_enqueue_task'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
-        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='35' column='1'/>
+      <function-decl name='__traceiter_android_rvh_enqueue_task' mangled-name='__traceiter_android_rvh_enqueue_task' filepath='include/trace/hooks/sched.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_enqueue_task'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='34' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='34' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='34' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='34' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_enqueue_task_fair' mangled-name='__traceiter_android_rvh_enqueue_task_fair' filepath='include/trace/hooks/sched.h' line='368' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_enqueue_task_fair'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
-        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='368' column='1'/>
+      <function-decl name='__traceiter_android_rvh_enqueue_task_fair' mangled-name='__traceiter_android_rvh_enqueue_task_fair' filepath='include/trace/hooks/sched.h' line='367' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_enqueue_task_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='367' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='367' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='367' column='1'/>
+        <parameter type-id='95e97e5e' name='flags' filepath='include/trace/hooks/sched.h' line='367' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_find_energy_efficient_cpu' mangled-name='__traceiter_android_rvh_find_energy_efficient_cpu' filepath='include/trace/hooks/sched.h' line='116' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_find_energy_efficient_cpu'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
-        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
-        <parameter type-id='95e97e5e' name='sync' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
-        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='116' column='1'/>
+      <function-decl name='__traceiter_android_rvh_find_energy_efficient_cpu' mangled-name='__traceiter_android_rvh_find_energy_efficient_cpu' filepath='include/trace/hooks/sched.h' line='115' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_find_energy_efficient_cpu'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='115' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='115' column='1'/>
+        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='115' column='1'/>
+        <parameter type-id='95e97e5e' name='sync' filepath='include/trace/hooks/sched.h' line='115' column='1'/>
+        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='115' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_irqs_disable' mangled-name='__traceiter_android_rvh_irqs_disable' filepath='include/trace/hooks/preemptirq.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_irqs_disable'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='22' column='1'/>
-        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='22' column='1'/>
-        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='22' column='1'/>
+      <function-decl name='__traceiter_android_rvh_irqs_disable' mangled-name='__traceiter_android_rvh_irqs_disable' filepath='include/trace/hooks/preemptirq.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_irqs_disable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='21' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='21' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='21' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_irqs_enable' mangled-name='__traceiter_android_rvh_irqs_enable' filepath='include/trace/hooks/preemptirq.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_irqs_enable'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='26' column='1'/>
-        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='26' column='1'/>
-        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='26' column='1'/>
+      <function-decl name='__traceiter_android_rvh_irqs_enable' mangled-name='__traceiter_android_rvh_irqs_enable' filepath='include/trace/hooks/preemptirq.h' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_irqs_enable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='25' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='25' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='25' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_post_init_entity_util_avg' mangled-name='__traceiter_android_rvh_post_init_entity_util_avg' filepath='include/trace/hooks/sched.h' line='329' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_post_init_entity_util_avg'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='329' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='329' column='1'/>
+      <function-decl name='__traceiter_android_rvh_post_init_entity_util_avg' mangled-name='__traceiter_android_rvh_post_init_entity_util_avg' filepath='include/trace/hooks/sched.h' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_post_init_entity_util_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='328' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='328' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_preempt_disable' mangled-name='__traceiter_android_rvh_preempt_disable' filepath='include/trace/hooks/preemptirq.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_preempt_disable'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='14' column='1'/>
-        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='14' column='1'/>
-        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='14' column='1'/>
+      <function-decl name='__traceiter_android_rvh_preempt_disable' mangled-name='__traceiter_android_rvh_preempt_disable' filepath='include/trace/hooks/preemptirq.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_preempt_disable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='13' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='13' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='13' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_preempt_enable' mangled-name='__traceiter_android_rvh_preempt_enable' filepath='include/trace/hooks/preemptirq.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_preempt_enable'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
-        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
-        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='18' column='1'/>
+      <function-decl name='__traceiter_android_rvh_preempt_enable' mangled-name='__traceiter_android_rvh_preempt_enable' filepath='include/trace/hooks/preemptirq.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_preempt_enable'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/preemptirq.h' line='17' column='1'/>
+        <parameter type-id='7359adad' name='ip' filepath='include/trace/hooks/preemptirq.h' line='17' column='1'/>
+        <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='17' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_remove_entity_load_avg' mangled-name='__traceiter_android_rvh_remove_entity_load_avg' filepath='include/trace/hooks/sched.h' line='420' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_remove_entity_load_avg'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='420' column='1'/>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='420' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='420' column='1'/>
+      <function-decl name='__traceiter_android_rvh_remove_entity_load_avg' mangled-name='__traceiter_android_rvh_remove_entity_load_avg' filepath='include/trace/hooks/sched.h' line='419' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_remove_entity_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='419' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='419' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='419' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_sched_fork' mangled-name='__traceiter_android_rvh_sched_fork' filepath='include/trace/hooks/sched.h' line='149' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_sched_fork'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='149' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='149' column='1'/>
+      <function-decl name='__traceiter_android_rvh_sched_fork' mangled-name='__traceiter_android_rvh_sched_fork' filepath='include/trace/hooks/sched.h' line='148' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_sched_fork'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='148' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='148' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_select_task_rq_fair' mangled-name='__traceiter_android_rvh_select_task_rq_fair' filepath='include/trace/hooks/sched.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_select_task_rq_fair'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
-        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
-        <parameter type-id='95e97e5e' name='sd_flag' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
-        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
-        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='14' column='1'/>
+      <function-decl name='__traceiter_android_rvh_select_task_rq_fair' mangled-name='__traceiter_android_rvh_select_task_rq_fair' filepath='include/trace/hooks/sched.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_select_task_rq_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='13' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='sd_flag' filepath='include/trace/hooks/sched.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='13' column='1'/>
+        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='13' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_select_task_rq_rt' mangled-name='__traceiter_android_rvh_select_task_rq_rt' filepath='include/trace/hooks/sched.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_select_task_rq_rt'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
-        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
-        <parameter type-id='95e97e5e' name='sd_flag' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
-        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
-        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='18' column='1'/>
+      <function-decl name='__traceiter_android_rvh_select_task_rq_rt' mangled-name='__traceiter_android_rvh_select_task_rq_rt' filepath='include/trace/hooks/sched.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_select_task_rq_rt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='17' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='17' column='1'/>
+        <parameter type-id='95e97e5e' name='prev_cpu' filepath='include/trace/hooks/sched.h' line='17' column='1'/>
+        <parameter type-id='95e97e5e' name='sd_flag' filepath='include/trace/hooks/sched.h' line='17' column='1'/>
+        <parameter type-id='95e97e5e' name='wake_flags' filepath='include/trace/hooks/sched.h' line='17' column='1'/>
+        <parameter type-id='7292109c' name='new_cpu' filepath='include/trace/hooks/sched.h' line='17' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_set_iowait' mangled-name='__traceiter_android_rvh_set_iowait' filepath='include/trace/hooks/sched.h' line='120' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_set_iowait'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='120' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='120' column='1'/>
-        <parameter type-id='7292109c' name='should_iowait_boost' filepath='include/trace/hooks/sched.h' line='120' column='1'/>
+      <function-decl name='__traceiter_android_rvh_set_iowait' mangled-name='__traceiter_android_rvh_set_iowait' filepath='include/trace/hooks/sched.h' line='119' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_set_iowait'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='119' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='119' column='1'/>
+        <parameter type-id='7292109c' name='should_iowait_boost' filepath='include/trace/hooks/sched.h' line='119' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' mangled-name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' filepath='include/trace/hooks/typec.h' line='32' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_chk_contaminant'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
-        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
-        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
-        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/typec.h' line='32' column='1'/>
+      <function-decl name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' mangled-name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' filepath='include/trace/hooks/typec.h' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_chk_contaminant'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='31' column='1'/>
+        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='31' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='31' column='1'/>
+        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/typec.h' line='31' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_typec_tcpci_get_vbus' mangled-name='__traceiter_android_rvh_typec_tcpci_get_vbus' filepath='include/trace/hooks/typec.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_get_vbus'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
-        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
-        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
-        <parameter type-id='7292109c' name='vbus' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
-        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/typec.h' line='43' column='1'/>
+      <function-decl name='__traceiter_android_rvh_typec_tcpci_get_vbus' mangled-name='__traceiter_android_rvh_typec_tcpci_get_vbus' filepath='include/trace/hooks/typec.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_get_vbus'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='42' column='1'/>
+        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='42' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='42' column='1'/>
+        <parameter type-id='7292109c' name='vbus' filepath='include/trace/hooks/typec.h' line='42' column='1'/>
+        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/typec.h' line='42' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_uclamp_eff_get' mangled-name='__traceiter_android_rvh_uclamp_eff_get' filepath='include/trace/hooks/sched.h' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_uclamp_eff_get'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
-        <parameter type-id='db819146' name='clamp_id' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
-        <parameter type-id='a1ac03ea' name='uclamp_max' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
-        <parameter type-id='a1ac03ea' name='uclamp_eff' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
-        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='286' column='1'/>
+      <function-decl name='__traceiter_android_rvh_uclamp_eff_get' mangled-name='__traceiter_android_rvh_uclamp_eff_get' filepath='include/trace/hooks/sched.h' line='285' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_uclamp_eff_get'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='285' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='285' column='1'/>
+        <parameter type-id='db819146' name='clamp_id' filepath='include/trace/hooks/sched.h' line='285' column='1'/>
+        <parameter type-id='a1ac03ea' name='uclamp_max' filepath='include/trace/hooks/sched.h' line='285' column='1'/>
+        <parameter type-id='a1ac03ea' name='uclamp_eff' filepath='include/trace/hooks/sched.h' line='285' column='1'/>
+        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='285' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_uclamp_rq_util_with' mangled-name='__traceiter_android_rvh_uclamp_rq_util_with' filepath='include/trace/hooks/sched.h' line='296' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_uclamp_rq_util_with'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
-        <parameter type-id='7359adad' name='util' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
-        <parameter type-id='7359adad' name='min_util' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
-        <parameter type-id='7359adad' name='max_util' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
-        <parameter type-id='1d2c2b85' name='ret' filepath='include/trace/hooks/sched.h' line='296' column='1'/>
+      <function-decl name='__traceiter_android_rvh_uclamp_rq_util_with' mangled-name='__traceiter_android_rvh_uclamp_rq_util_with' filepath='include/trace/hooks/sched.h' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_uclamp_rq_util_with'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='295' column='1'/>
+        <parameter type-id='7359adad' name='util' filepath='include/trace/hooks/sched.h' line='295' column='1'/>
+        <parameter type-id='7359adad' name='min_util' filepath='include/trace/hooks/sched.h' line='295' column='1'/>
+        <parameter type-id='7359adad' name='max_util' filepath='include/trace/hooks/sched.h' line='295' column='1'/>
+        <parameter type-id='1d2c2b85' name='ret' filepath='include/trace/hooks/sched.h' line='295' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_ufs_complete_init' mangled-name='__traceiter_android_rvh_ufs_complete_init' filepath='include/trace/hooks/ufshcd.h' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_ufs_complete_init'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='22' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='22' column='1'/>
+      <function-decl name='__traceiter_android_rvh_ufs_complete_init' mangled-name='__traceiter_android_rvh_ufs_complete_init' filepath='include/trace/hooks/ufshcd.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_ufs_complete_init'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='21' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='21' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_ufs_reprogram_all_keys' mangled-name='__traceiter_android_rvh_ufs_reprogram_all_keys' filepath='include/trace/hooks/ufshcd.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_ufs_reprogram_all_keys'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
-        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='26' column='1'/>
+      <function-decl name='__traceiter_android_rvh_ufs_reprogram_all_keys' mangled-name='__traceiter_android_rvh_ufs_reprogram_all_keys' filepath='include/trace/hooks/ufshcd.h' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_ufs_reprogram_all_keys'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='25' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='25' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='25' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_update_blocked_fair' mangled-name='__traceiter_android_rvh_update_blocked_fair' filepath='include/trace/hooks/sched.h' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_blocked_fair'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='424' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='424' column='1'/>
+      <function-decl name='__traceiter_android_rvh_update_blocked_fair' mangled-name='__traceiter_android_rvh_update_blocked_fair' filepath='include/trace/hooks/sched.h' line='423' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_blocked_fair'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='423' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='423' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_update_load_avg' mangled-name='__traceiter_android_rvh_update_load_avg' filepath='include/trace/hooks/sched.h' line='416' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_load_avg'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
-        <parameter type-id='91ce1af9' name='now' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
-        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='416' column='1'/>
+      <function-decl name='__traceiter_android_rvh_update_load_avg' mangled-name='__traceiter_android_rvh_update_load_avg' filepath='include/trace/hooks/sched.h' line='415' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='415' column='1'/>
+        <parameter type-id='91ce1af9' name='now' filepath='include/trace/hooks/sched.h' line='415' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='415' column='1'/>
+        <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='415' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_rvh_util_est_update' mangled-name='__traceiter_android_rvh_util_est_update' filepath='include/trace/hooks/sched.h' line='317' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_util_est_update'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
-        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
-        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
-        <parameter type-id='b50a4934' name='task_sleep' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
-        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='317' column='1'/>
+      <function-decl name='__traceiter_android_rvh_util_est_update' mangled-name='__traceiter_android_rvh_util_est_update' filepath='include/trace/hooks/sched.h' line='316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_util_est_update'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
+        <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
+        <parameter type-id='b50a4934' name='task_sleep' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
+        <parameter type-id='7292109c' name='ret' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh___get_user_pages_remote' mangled-name='__traceiter_android_vh___get_user_pages_remote' filepath='include/trace/hooks/gup.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh___get_user_pages_remote'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='17' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='include/trace/hooks/gup.h' line='17' column='1'/>
-        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='17' column='1'/>
+      <function-decl name='__traceiter_android_vh___get_user_pages_remote' mangled-name='__traceiter_android_vh___get_user_pages_remote' filepath='include/trace/hooks/gup.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh___get_user_pages_remote'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='16' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='include/trace/hooks/gup.h' line='16' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='16' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='include/trace/hooks/gup.h' line='16' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_aes_decrypt' mangled-name='__traceiter_android_vh_aes_decrypt' filepath='include/trace/hooks/fips140.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_decrypt'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
-        <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
-        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
-        <parameter type-id='bbaf3419' name='in' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
-        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='41' column='1'/>
+      <function-decl name='__traceiter_android_vh_aes_decrypt' mangled-name='__traceiter_android_vh_aes_decrypt' filepath='include/trace/hooks/fips140.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_decrypt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='40' column='1'/>
+        <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='40' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='40' column='1'/>
+        <parameter type-id='bbaf3419' name='in' filepath='include/trace/hooks/fips140.h' line='40' column='1'/>
+        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='40' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_aes_encrypt' mangled-name='__traceiter_android_vh_aes_encrypt' filepath='include/trace/hooks/fips140.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_encrypt'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
-        <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
-        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
-        <parameter type-id='bbaf3419' name='in' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
-        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='34' column='1'/>
+      <function-decl name='__traceiter_android_vh_aes_encrypt' mangled-name='__traceiter_android_vh_aes_encrypt' filepath='include/trace/hooks/fips140.h' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_encrypt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='33' column='1'/>
+        <parameter type-id='825271e7' name='ctx' filepath='include/trace/hooks/fips140.h' line='33' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='33' column='1'/>
+        <parameter type-id='bbaf3419' name='in' filepath='include/trace/hooks/fips140.h' line='33' column='1'/>
+        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='33' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_aes_expandkey' mangled-name='__traceiter_android_vh_aes_expandkey' filepath='include/trace/hooks/fips140.h' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_expandkey'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
-        <parameter type-id='21370cb4' name='ctx' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
-        <parameter type-id='bbaf3419' name='in_key' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
-        <parameter type-id='f0981eeb' name='key_len' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
-        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/fips140.h' line='27' column='1'/>
+      <function-decl name='__traceiter_android_vh_aes_expandkey' mangled-name='__traceiter_android_vh_aes_expandkey' filepath='include/trace/hooks/fips140.h' line='26' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_aes_expandkey'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='26' column='1'/>
+        <parameter type-id='21370cb4' name='ctx' filepath='include/trace/hooks/fips140.h' line='26' column='1'/>
+        <parameter type-id='bbaf3419' name='in_key' filepath='include/trace/hooks/fips140.h' line='26' column='1'/>
+        <parameter type-id='f0981eeb' name='key_len' filepath='include/trace/hooks/fips140.h' line='26' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/fips140.h' line='26' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_arch_set_freq_scale' mangled-name='__traceiter_android_vh_arch_set_freq_scale' filepath='include/trace/hooks/topology.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_arch_set_freq_scale'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
-        <parameter type-id='5f8a1ac4' name='cpus' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
-        <parameter type-id='7359adad' name='freq' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
-        <parameter type-id='7359adad' name='max' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
-        <parameter type-id='1d2c2b85' name='scale' filepath='include/trace/hooks/topology.h' line='14' column='1'/>
+      <function-decl name='__traceiter_android_vh_arch_set_freq_scale' mangled-name='__traceiter_android_vh_arch_set_freq_scale' filepath='include/trace/hooks/topology.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_arch_set_freq_scale'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/topology.h' line='13' column='1'/>
+        <parameter type-id='5f8a1ac4' name='cpus' filepath='include/trace/hooks/topology.h' line='13' column='1'/>
+        <parameter type-id='7359adad' name='freq' filepath='include/trace/hooks/topology.h' line='13' column='1'/>
+        <parameter type-id='7359adad' name='max' filepath='include/trace/hooks/topology.h' line='13' column='1'/>
+        <parameter type-id='1d2c2b85' name='scale' filepath='include/trace/hooks/topology.h' line='13' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_cma_alloc_finish' mangled-name='__traceiter_android_vh_cma_alloc_finish' filepath='include/trace/hooks/mm.h' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cma_alloc_finish'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
-        <parameter type-id='6f67b38a' name='cma' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
-        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
-        <parameter type-id='7359adad' name='count' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
-        <parameter type-id='f0981eeb' name='align' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
-        <parameter type-id='9b7c55ef' name='ts' filepath='include/trace/hooks/mm.h' line='31' column='1'/>
+      <function-decl name='__traceiter_android_vh_cma_alloc_finish' mangled-name='__traceiter_android_vh_cma_alloc_finish' filepath='include/trace/hooks/mm.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cma_alloc_finish'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
+        <parameter type-id='6f67b38a' name='cma' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
+        <parameter type-id='7359adad' name='count' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
+        <parameter type-id='f0981eeb' name='align' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
+        <parameter type-id='9b7c55ef' name='ts' filepath='include/trace/hooks/mm.h' line='30' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_cma_alloc_start' mangled-name='__traceiter_android_vh_cma_alloc_start' filepath='include/trace/hooks/mm.h' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cma_alloc_start'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='28' column='1'/>
-        <parameter type-id='842ac8d6' name='ts' filepath='include/trace/hooks/mm.h' line='28' column='1'/>
+      <function-decl name='__traceiter_android_vh_cma_alloc_start' mangled-name='__traceiter_android_vh_cma_alloc_start' filepath='include/trace/hooks/mm.h' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cma_alloc_start'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='27' column='1'/>
+        <parameter type-id='842ac8d6' name='ts' filepath='include/trace/hooks/mm.h' line='27' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_cpu_idle_enter' mangled-name='__traceiter_android_vh_cpu_idle_enter' filepath='include/trace/hooks/cpuidle.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cpu_idle_enter'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cpuidle.h' line='15' column='1'/>
-        <parameter type-id='7292109c' name='state' filepath='include/trace/hooks/cpuidle.h' line='15' column='1'/>
-        <parameter type-id='1b0e1d00' name='dev' filepath='include/trace/hooks/cpuidle.h' line='15' column='1'/>
+      <function-decl name='__traceiter_android_vh_cpu_idle_enter' mangled-name='__traceiter_android_vh_cpu_idle_enter' filepath='include/trace/hooks/cpuidle.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cpu_idle_enter'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cpuidle.h' line='14' column='1'/>
+        <parameter type-id='7292109c' name='state' filepath='include/trace/hooks/cpuidle.h' line='14' column='1'/>
+        <parameter type-id='1b0e1d00' name='dev' filepath='include/trace/hooks/cpuidle.h' line='14' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_cpu_idle_exit' mangled-name='__traceiter_android_vh_cpu_idle_exit' filepath='include/trace/hooks/cpuidle.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cpu_idle_exit'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cpuidle.h' line='18' column='1'/>
-        <parameter type-id='95e97e5e' name='state' filepath='include/trace/hooks/cpuidle.h' line='18' column='1'/>
-        <parameter type-id='1b0e1d00' name='dev' filepath='include/trace/hooks/cpuidle.h' line='18' column='1'/>
+      <function-decl name='__traceiter_android_vh_cpu_idle_exit' mangled-name='__traceiter_android_vh_cpu_idle_exit' filepath='include/trace/hooks/cpuidle.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_cpu_idle_exit'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/cpuidle.h' line='17' column='1'/>
+        <parameter type-id='95e97e5e' name='state' filepath='include/trace/hooks/cpuidle.h' line='17' column='1'/>
+        <parameter type-id='1b0e1d00' name='dev' filepath='include/trace/hooks/cpuidle.h' line='17' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_dup_task_struct' mangled-name='__traceiter_android_vh_dup_task_struct' filepath='include/trace/hooks/sched.h' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_dup_task_struct'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='384' column='1'/>
-        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='384' column='1'/>
-        <parameter type-id='f23e2572' name='orig' filepath='include/trace/hooks/sched.h' line='384' column='1'/>
+      <function-decl name='__traceiter_android_vh_dup_task_struct' mangled-name='__traceiter_android_vh_dup_task_struct' filepath='include/trace/hooks/sched.h' line='383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_dup_task_struct'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='383' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='383' column='1'/>
+        <parameter type-id='f23e2572' name='orig' filepath='include/trace/hooks/sched.h' line='383' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_enable_thermal_genl_check' mangled-name='__traceiter_android_vh_enable_thermal_genl_check' filepath='include/trace/hooks/thermal.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_enable_thermal_genl_check'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
-        <parameter type-id='95e97e5e' name='event' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
-        <parameter type-id='95e97e5e' name='tz_id' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
-        <parameter type-id='7292109c' name='enable_thermal_genl' filepath='include/trace/hooks/thermal.h' line='14' column='1'/>
+      <function-decl name='__traceiter_android_vh_enable_thermal_genl_check' mangled-name='__traceiter_android_vh_enable_thermal_genl_check' filepath='include/trace/hooks/thermal.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_enable_thermal_genl_check'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/thermal.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='event' filepath='include/trace/hooks/thermal.h' line='13' column='1'/>
+        <parameter type-id='95e97e5e' name='tz_id' filepath='include/trace/hooks/thermal.h' line='13' column='1'/>
+        <parameter type-id='7292109c' name='enable_thermal_genl' filepath='include/trace/hooks/thermal.h' line='13' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ep_create_wakeup_source' mangled-name='__traceiter_android_vh_ep_create_wakeup_source' filepath='include/trace/hooks/fs.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ep_create_wakeup_source'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
-        <parameter type-id='26a90f95' name='name' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
-        <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='13' column='1'/>
+      <function-decl name='__traceiter_android_vh_ep_create_wakeup_source' mangled-name='__traceiter_android_vh_ep_create_wakeup_source' filepath='include/trace/hooks/fs.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ep_create_wakeup_source'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fs.h' line='12' column='1'/>
+        <parameter type-id='26a90f95' name='name' filepath='include/trace/hooks/fs.h' line='12' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='12' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_get_user_pages' mangled-name='__traceiter_android_vh_get_user_pages' filepath='include/trace/hooks/gup.h' line='21' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_get_user_pages'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='21' column='1'/>
-        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='21' column='1'/>
+      <function-decl name='__traceiter_android_vh_get_user_pages' mangled-name='__traceiter_android_vh_get_user_pages' filepath='include/trace/hooks/gup.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_get_user_pages'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='20' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='20' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='include/trace/hooks/gup.h' line='20' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_internal_get_user_pages_fast' mangled-name='__traceiter_android_vh_internal_get_user_pages_fast' filepath='include/trace/hooks/gup.h' line='25' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_internal_get_user_pages_fast'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='25' column='1'/>
-        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='25' column='1'/>
+      <function-decl name='__traceiter_android_vh_internal_get_user_pages_fast' mangled-name='__traceiter_android_vh_internal_get_user_pages_fast' filepath='include/trace/hooks/gup.h' line='24' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_internal_get_user_pages_fast'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='24' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='24' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='include/trace/hooks/gup.h' line='24' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ipi_stop' mangled-name='__traceiter_android_vh_ipi_stop' filepath='include/trace/hooks/debug.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ipi_stop'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/debug.h' line='16' column='1'/>
-        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/debug.h' line='16' column='1'/>
+      <function-decl name='__traceiter_android_vh_ipi_stop' mangled-name='__traceiter_android_vh_ipi_stop' filepath='include/trace/hooks/debug.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ipi_stop'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/debug.h' line='15' column='1'/>
+        <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/debug.h' line='15' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_meminfo_proc_show' mangled-name='__traceiter_android_vh_meminfo_proc_show' filepath='include/trace/hooks/mm.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_meminfo_proc_show'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='51' column='1'/>
-        <parameter type-id='f8dc9def' name='m' filepath='include/trace/hooks/mm.h' line='51' column='1'/>
+      <function-decl name='__traceiter_android_vh_meminfo_proc_show' mangled-name='__traceiter_android_vh_meminfo_proc_show' filepath='include/trace/hooks/mm.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_meminfo_proc_show'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='50' column='1'/>
+        <parameter type-id='f8dc9def' name='m' filepath='include/trace/hooks/mm.h' line='50' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' mangled-name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' filepath='include/trace/hooks/mmc_core.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_mmc_blk_mq_rw_recovery'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mmc_core.h' line='20' column='1'/>
-        <parameter type-id='13d38dcb' name='card' filepath='include/trace/hooks/mmc_core.h' line='20' column='1'/>
+      <function-decl name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' mangled-name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' filepath='include/trace/hooks/mmc_core.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_mmc_blk_mq_rw_recovery'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mmc_core.h' line='19' column='1'/>
+        <parameter type-id='13d38dcb' name='card' filepath='include/trace/hooks/mmc_core.h' line='19' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_mmc_blk_reset' mangled-name='__traceiter_android_vh_mmc_blk_reset' filepath='include/trace/hooks/mmc_core.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_mmc_blk_reset'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
-        <parameter type-id='dd575c43' name='host' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
-        <parameter type-id='95e97e5e' name='err' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
-        <parameter type-id='d8e6b335' name='allow' filepath='include/trace/hooks/mmc_core.h' line='17' column='1'/>
+      <function-decl name='__traceiter_android_vh_mmc_blk_reset' mangled-name='__traceiter_android_vh_mmc_blk_reset' filepath='include/trace/hooks/mmc_core.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_mmc_blk_reset'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mmc_core.h' line='16' column='1'/>
+        <parameter type-id='dd575c43' name='host' filepath='include/trace/hooks/mmc_core.h' line='16' column='1'/>
+        <parameter type-id='95e97e5e' name='err' filepath='include/trace/hooks/mmc_core.h' line='16' column='1'/>
+        <parameter type-id='d8e6b335' name='allow' filepath='include/trace/hooks/mmc_core.h' line='16' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_of_i2c_get_board_info' mangled-name='__traceiter_android_vh_of_i2c_get_board_info' filepath='include/trace/hooks/i2c.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_of_i2c_get_board_info'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/i2c.h' line='13' column='1'/>
-        <parameter type-id='9a537bbe' name='node' filepath='include/trace/hooks/i2c.h' line='13' column='1'/>
-        <parameter type-id='7d3cd834' name='dev_name' filepath='include/trace/hooks/i2c.h' line='13' column='1'/>
+      <function-decl name='__traceiter_android_vh_of_i2c_get_board_info' mangled-name='__traceiter_android_vh_of_i2c_get_board_info' filepath='include/trace/hooks/i2c.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_of_i2c_get_board_info'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/i2c.h' line='12' column='1'/>
+        <parameter type-id='9a537bbe' name='node' filepath='include/trace/hooks/i2c.h' line='12' column='1'/>
+        <parameter type-id='7d3cd834' name='dev_name' filepath='include/trace/hooks/i2c.h' line='12' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_pagecache_get_page' mangled-name='__traceiter_android_vh_pagecache_get_page' filepath='include/trace/hooks/mm.h' line='41' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_pagecache_get_page'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
-        <parameter type-id='f57039f0' name='mapping' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
-        <parameter type-id='7359adad' name='index' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
-        <parameter type-id='95e97e5e' name='fgp_flags' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
-        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='41' column='1'/>
+      <function-decl name='__traceiter_android_vh_pagecache_get_page' mangled-name='__traceiter_android_vh_pagecache_get_page' filepath='include/trace/hooks/mm.h' line='40' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_pagecache_get_page'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='40' column='1'/>
+        <parameter type-id='f57039f0' name='mapping' filepath='include/trace/hooks/mm.h' line='40' column='1'/>
+        <parameter type-id='7359adad' name='index' filepath='include/trace/hooks/mm.h' line='40' column='1'/>
+        <parameter type-id='95e97e5e' name='fgp_flags' filepath='include/trace/hooks/mm.h' line='40' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='include/trace/hooks/mm.h' line='40' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/mm.h' line='40' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_pin_user_pages' mangled-name='__traceiter_android_vh_pin_user_pages' filepath='include/trace/hooks/gup.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_pin_user_pages'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='29' column='1'/>
-        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='29' column='1'/>
+      <function-decl name='__traceiter_android_vh_pin_user_pages' mangled-name='__traceiter_android_vh_pin_user_pages' filepath='include/trace/hooks/gup.h' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_pin_user_pages'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='28' column='1'/>
+        <parameter type-id='807869d3' name='gup_flags' filepath='include/trace/hooks/gup.h' line='28' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='include/trace/hooks/gup.h' line='28' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_rmqueue' mangled-name='__traceiter_android_vh_rmqueue' filepath='include/trace/hooks/mm.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_rmqueue'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
-        <parameter type-id='0a0aff97' name='preferred_zone' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
-        <parameter type-id='0a0aff97' name='zone' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp_flags' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
-        <parameter type-id='f0981eeb' name='alloc_flags' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
-        <parameter type-id='95e97e5e' name='migratetype' filepath='include/trace/hooks/mm.h' line='35' column='1'/>
+      <function-decl name='__traceiter_android_vh_rmqueue' mangled-name='__traceiter_android_vh_rmqueue' filepath='include/trace/hooks/mm.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_rmqueue'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
+        <parameter type-id='0a0aff97' name='preferred_zone' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
+        <parameter type-id='0a0aff97' name='zone' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_flags' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
+        <parameter type-id='f0981eeb' name='alloc_flags' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
+        <parameter type-id='95e97e5e' name='migratetype' filepath='include/trace/hooks/mm.h' line='34' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_scheduler_tick' mangled-name='__traceiter_android_vh_scheduler_tick' filepath='include/trace/hooks/sched.h' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_scheduler_tick'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='31' column='1'/>
-        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='31' column='1'/>
+      <function-decl name='__traceiter_android_vh_scheduler_tick' mangled-name='__traceiter_android_vh_scheduler_tick' filepath='include/trace/hooks/sched.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_scheduler_tick'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='30' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='30' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_setscheduler_uclamp' mangled-name='__traceiter_android_vh_setscheduler_uclamp' filepath='include/trace/hooks/sched.h' line='404' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_setscheduler_uclamp'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
-        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
-        <parameter type-id='95e97e5e' name='clamp_id' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
-        <parameter type-id='f0981eeb' name='value' filepath='include/trace/hooks/sched.h' line='404' column='1'/>
+      <function-decl name='__traceiter_android_vh_setscheduler_uclamp' mangled-name='__traceiter_android_vh_setscheduler_uclamp' filepath='include/trace/hooks/sched.h' line='403' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_setscheduler_uclamp'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='403' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='403' column='1'/>
+        <parameter type-id='95e97e5e' name='clamp_id' filepath='include/trace/hooks/sched.h' line='403' column='1'/>
+        <parameter type-id='f0981eeb' name='value' filepath='include/trace/hooks/sched.h' line='403' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_sha256' mangled-name='__traceiter_android_vh_sha256' filepath='include/trace/hooks/fips140.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sha256'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
-        <parameter type-id='bbaf3419' name='data' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
-        <parameter type-id='f0981eeb' name='len' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
-        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
-        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='20' column='1'/>
+      <function-decl name='__traceiter_android_vh_sha256' mangled-name='__traceiter_android_vh_sha256' filepath='include/trace/hooks/fips140.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sha256'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fips140.h' line='19' column='1'/>
+        <parameter type-id='bbaf3419' name='data' filepath='include/trace/hooks/fips140.h' line='19' column='1'/>
+        <parameter type-id='f0981eeb' name='len' filepath='include/trace/hooks/fips140.h' line='19' column='1'/>
+        <parameter type-id='8bff8096' name='out' filepath='include/trace/hooks/fips140.h' line='19' column='1'/>
+        <parameter type-id='7292109c' name='hook_inuse' filepath='include/trace/hooks/fips140.h' line='19' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_snd_compr_use_pause_in_drain' mangled-name='__traceiter_android_vh_snd_compr_use_pause_in_drain' filepath='include/trace/hooks/snd_compr.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_snd_compr_use_pause_in_drain'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/snd_compr.h' line='18' column='1'/>
-        <parameter type-id='d8e6b335' name='use_pause_in_drain' filepath='include/trace/hooks/snd_compr.h' line='18' column='1'/>
-        <parameter type-id='d8e6b335' name='leave_draining' filepath='include/trace/hooks/snd_compr.h' line='18' column='1'/>
+      <function-decl name='__traceiter_android_vh_snd_compr_use_pause_in_drain' mangled-name='__traceiter_android_vh_snd_compr_use_pause_in_drain' filepath='include/trace/hooks/snd_compr.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_snd_compr_use_pause_in_drain'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/snd_compr.h' line='17' column='1'/>
+        <parameter type-id='d8e6b335' name='use_pause_in_drain' filepath='include/trace/hooks/snd_compr.h' line='17' column='1'/>
+        <parameter type-id='d8e6b335' name='leave_draining' filepath='include/trace/hooks/snd_compr.h' line='17' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_sound_usb_support_cpu_suspend' mangled-name='__traceiter_android_vh_sound_usb_support_cpu_suspend' filepath='include/trace/hooks/sound.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sound_usb_support_cpu_suspend'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
-        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
-        <parameter type-id='95e97e5e' name='direction' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
-        <parameter type-id='d8e6b335' name='is_support' filepath='include/trace/hooks/sound.h' line='12' column='1'/>
+      <function-decl name='__traceiter_android_vh_sound_usb_support_cpu_suspend' mangled-name='__traceiter_android_vh_sound_usb_support_cpu_suspend' filepath='include/trace/hooks/sound.h' line='11' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sound_usb_support_cpu_suspend'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sound.h' line='11' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/sound.h' line='11' column='1'/>
+        <parameter type-id='95e97e5e' name='direction' filepath='include/trace/hooks/sound.h' line='11' column='1'/>
+        <parameter type-id='d8e6b335' name='is_support' filepath='include/trace/hooks/sound.h' line='11' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_sysrq_crash' mangled-name='__traceiter_android_vh_sysrq_crash' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sysrq_crash'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1'/>
-        <parameter type-id='eaa32e2f' name='data' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1'/>
+      <function-decl name='__traceiter_android_vh_sysrq_crash' mangled-name='__traceiter_android_vh_sysrq_crash' filepath='include/trace/hooks/sysrqcrash.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_sysrq_crash'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sysrqcrash.h' line='13' column='1'/>
+        <parameter type-id='eaa32e2f' name='data' filepath='include/trace/hooks/sysrqcrash.h' line='13' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_thermal_pm_notify_suspend' mangled-name='__traceiter_android_vh_thermal_pm_notify_suspend' filepath='include/trace/hooks/thermal.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_thermal_pm_notify_suspend'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/thermal.h' line='19' column='1'/>
-        <parameter type-id='404b1300' name='tz' filepath='include/trace/hooks/thermal.h' line='19' column='1'/>
-        <parameter type-id='7292109c' name='irq_wakeable' filepath='include/trace/hooks/thermal.h' line='19' column='1'/>
+      <function-decl name='__traceiter_android_vh_thermal_pm_notify_suspend' mangled-name='__traceiter_android_vh_thermal_pm_notify_suspend' filepath='include/trace/hooks/thermal.h' line='18' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_thermal_pm_notify_suspend'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/thermal.h' line='18' column='1'/>
+        <parameter type-id='404b1300' name='tz' filepath='include/trace/hooks/thermal.h' line='18' column='1'/>
+        <parameter type-id='7292109c' name='irq_wakeable' filepath='include/trace/hooks/thermal.h' line='18' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_timerfd_create' mangled-name='__traceiter_android_vh_timerfd_create' filepath='include/trace/hooks/fs.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_timerfd_create'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
-        <parameter type-id='26a90f95' name='name' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
-        <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='17' column='1'/>
+      <function-decl name='__traceiter_android_vh_timerfd_create' mangled-name='__traceiter_android_vh_timerfd_create' filepath='include/trace/hooks/fs.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_timerfd_create'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/fs.h' line='16' column='1'/>
+        <parameter type-id='26a90f95' name='name' filepath='include/trace/hooks/fs.h' line='16' column='1'/>
+        <parameter type-id='95e97e5e' name='len' filepath='include/trace/hooks/fs.h' line='16' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_try_grab_compound_head' mangled-name='__traceiter_android_vh_try_grab_compound_head' filepath='include/trace/hooks/gup.h' line='13' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_try_grab_compound_head'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
-        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
-        <parameter type-id='95e97e5e' name='refs' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
-        <parameter type-id='f0981eeb' name='flags' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
-        <parameter type-id='d8e6b335' name='ret' filepath='include/trace/hooks/gup.h' line='13' column='1'/>
+      <function-decl name='__traceiter_android_vh_try_grab_compound_head' mangled-name='__traceiter_android_vh_try_grab_compound_head' filepath='include/trace/hooks/gup.h' line='12' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_try_grab_compound_head'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/gup.h' line='12' column='1'/>
+        <parameter type-id='02f11ed4' name='page' filepath='include/trace/hooks/gup.h' line='12' column='1'/>
+        <parameter type-id='95e97e5e' name='refs' filepath='include/trace/hooks/gup.h' line='12' column='1'/>
+        <parameter type-id='f0981eeb' name='flags' filepath='include/trace/hooks/gup.h' line='12' column='1'/>
+        <parameter type-id='d8e6b335' name='ret' filepath='include/trace/hooks/gup.h' line='12' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_typec_store_partner_src_caps' mangled-name='__traceiter_android_vh_typec_store_partner_src_caps' filepath='include/trace/hooks/typec.h' line='51' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_store_partner_src_caps'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
-        <parameter type-id='426e425b' name='port' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
-        <parameter type-id='807869d3' name='nr_source_caps' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
-        <parameter type-id='428e8d18' name='source_caps' filepath='include/trace/hooks/typec.h' line='51' column='1'/>
+      <function-decl name='__traceiter_android_vh_typec_store_partner_src_caps' mangled-name='__traceiter_android_vh_typec_store_partner_src_caps' filepath='include/trace/hooks/typec.h' line='50' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_store_partner_src_caps'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='50' column='1'/>
+        <parameter type-id='426e425b' name='port' filepath='include/trace/hooks/typec.h' line='50' column='1'/>
+        <parameter type-id='807869d3' name='nr_source_caps' filepath='include/trace/hooks/typec.h' line='50' column='1'/>
+        <parameter type-id='428e8d18' name='source_caps' filepath='include/trace/hooks/typec.h' line='50' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_typec_tcpci_override_toggling' mangled-name='__traceiter_android_vh_typec_tcpci_override_toggling' filepath='include/trace/hooks/typec.h' line='28' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpci_override_toggling'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
-        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
-        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
-        <parameter type-id='7292109c' name='override_toggling' filepath='include/trace/hooks/typec.h' line='28' column='1'/>
+      <function-decl name='__traceiter_android_vh_typec_tcpci_override_toggling' mangled-name='__traceiter_android_vh_typec_tcpci_override_toggling' filepath='include/trace/hooks/typec.h' line='27' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpci_override_toggling'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='27' column='1'/>
+        <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='27' column='1'/>
+        <parameter type-id='b6733265' name='data' filepath='include/trace/hooks/typec.h' line='27' column='1'/>
+        <parameter type-id='7292109c' name='override_toggling' filepath='include/trace/hooks/typec.h' line='27' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_typec_tcpm_get_timer' mangled-name='__traceiter_android_vh_typec_tcpm_get_timer' filepath='include/trace/hooks/typec.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_get_timer'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
-        <parameter type-id='80f4b756' name='state' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
-        <parameter type-id='014ea5fb' name='timer' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
-        <parameter type-id='807869d3' name='msecs' filepath='include/trace/hooks/typec.h' line='47' column='1'/>
+      <function-decl name='__traceiter_android_vh_typec_tcpm_get_timer' mangled-name='__traceiter_android_vh_typec_tcpm_get_timer' filepath='include/trace/hooks/typec.h' line='46' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_get_timer'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='46' column='1'/>
+        <parameter type-id='80f4b756' name='state' filepath='include/trace/hooks/typec.h' line='46' column='1'/>
+        <parameter type-id='014ea5fb' name='timer' filepath='include/trace/hooks/typec.h' line='46' column='1'/>
+        <parameter type-id='807869d3' name='msecs' filepath='include/trace/hooks/typec.h' line='46' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_typec_tcpm_log' mangled-name='__traceiter_android_vh_typec_tcpm_log' filepath='include/trace/hooks/typec.h' line='61' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_log'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='61' column='1'/>
-        <parameter type-id='80f4b756' name='log' filepath='include/trace/hooks/typec.h' line='61' column='1'/>
-        <parameter type-id='d8e6b335' name='bypass' filepath='include/trace/hooks/typec.h' line='61' column='1'/>
+      <function-decl name='__traceiter_android_vh_typec_tcpm_log' mangled-name='__traceiter_android_vh_typec_tcpm_log' filepath='include/trace/hooks/typec.h' line='60' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_log'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='60' column='1'/>
+        <parameter type-id='80f4b756' name='log' filepath='include/trace/hooks/typec.h' line='60' column='1'/>
+        <parameter type-id='d8e6b335' name='bypass' filepath='include/trace/hooks/typec.h' line='60' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_typec_tcpm_modify_src_caps' mangled-name='__traceiter_android_vh_typec_tcpm_modify_src_caps' filepath='include/trace/hooks/typec.h' line='65' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_modify_src_caps'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
-        <parameter type-id='807869d3' name='nr_src_pdo' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
-        <parameter type-id='428e8d18' name='src_pdo' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
-        <parameter type-id='d8e6b335' name='modified' filepath='include/trace/hooks/typec.h' line='65' column='1'/>
+      <function-decl name='__traceiter_android_vh_typec_tcpm_modify_src_caps' mangled-name='__traceiter_android_vh_typec_tcpm_modify_src_caps' filepath='include/trace/hooks/typec.h' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_typec_tcpm_modify_src_caps'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='64' column='1'/>
+        <parameter type-id='807869d3' name='nr_src_pdo' filepath='include/trace/hooks/typec.h' line='64' column='1'/>
+        <parameter type-id='428e8d18' name='src_pdo' filepath='include/trace/hooks/typec.h' line='64' column='1'/>
+        <parameter type-id='d8e6b335' name='modified' filepath='include/trace/hooks/typec.h' line='64' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_check_int_errors' mangled-name='__traceiter_android_vh_ufs_check_int_errors' filepath='include/trace/hooks/ufshcd.h' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_check_int_errors'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='57' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='57' column='1'/>
-        <parameter type-id='b50a4934' name='queue_eh_work' filepath='include/trace/hooks/ufshcd.h' line='57' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_check_int_errors' mangled-name='__traceiter_android_vh_ufs_check_int_errors' filepath='include/trace/hooks/ufshcd.h' line='56' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_check_int_errors'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='56' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='56' column='1'/>
+        <parameter type-id='b50a4934' name='queue_eh_work' filepath='include/trace/hooks/ufshcd.h' line='56' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_compl_command' mangled-name='__traceiter_android_vh_ufs_compl_command' filepath='include/trace/hooks/ufshcd.h' line='43' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_compl_command'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='43' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='43' column='1'/>
-        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='43' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_compl_command' mangled-name='__traceiter_android_vh_ufs_compl_command' filepath='include/trace/hooks/ufshcd.h' line='42' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_compl_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='42' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='42' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='42' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_fill_prdt' mangled-name='__traceiter_android_vh_ufs_fill_prdt' filepath='include/trace/hooks/ufshcd.h' line='17' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_fill_prdt'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
-        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
-        <parameter type-id='f0981eeb' name='segments' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
-        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='17' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_fill_prdt' mangled-name='__traceiter_android_vh_ufs_fill_prdt' filepath='include/trace/hooks/ufshcd.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_fill_prdt'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='16' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='16' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='16' column='1'/>
+        <parameter type-id='f0981eeb' name='segments' filepath='include/trace/hooks/ufshcd.h' line='16' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='16' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_prepare_command' mangled-name='__traceiter_android_vh_ufs_prepare_command' filepath='include/trace/hooks/ufshcd.h' line='30' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_prepare_command'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
-        <parameter type-id='3dad1a48' name='rq' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
-        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
-        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='30' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_prepare_command' mangled-name='__traceiter_android_vh_ufs_prepare_command' filepath='include/trace/hooks/ufshcd.h' line='29' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_prepare_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='29' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='29' column='1'/>
+        <parameter type-id='3dad1a48' name='rq' filepath='include/trace/hooks/ufshcd.h' line='29' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='29' column='1'/>
+        <parameter type-id='7292109c' name='err' filepath='include/trace/hooks/ufshcd.h' line='29' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_send_command' mangled-name='__traceiter_android_vh_ufs_send_command' filepath='include/trace/hooks/ufshcd.h' line='39' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_command'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='39' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='39' column='1'/>
-        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='39' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_send_command' mangled-name='__traceiter_android_vh_ufs_send_command' filepath='include/trace/hooks/ufshcd.h' line='38' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='38' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='38' column='1'/>
+        <parameter type-id='6ca6fa6d' name='lrbp' filepath='include/trace/hooks/ufshcd.h' line='38' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_send_tm_command' mangled-name='__traceiter_android_vh_ufs_send_tm_command' filepath='include/trace/hooks/ufshcd.h' line='53' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_tm_command'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
-        <parameter type-id='95e97e5e' name='tag' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
-        <parameter type-id='80f4b756' name='str' filepath='include/trace/hooks/ufshcd.h' line='53' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_send_tm_command' mangled-name='__traceiter_android_vh_ufs_send_tm_command' filepath='include/trace/hooks/ufshcd.h' line='52' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_tm_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='52' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='52' column='1'/>
+        <parameter type-id='95e97e5e' name='tag' filepath='include/trace/hooks/ufshcd.h' line='52' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='include/trace/hooks/ufshcd.h' line='52' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_send_uic_command' mangled-name='__traceiter_android_vh_ufs_send_uic_command' filepath='include/trace/hooks/ufshcd.h' line='48' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_uic_command'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
-        <parameter type-id='cdf785b8' name='ucmd' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
-        <parameter type-id='80f4b756' name='str' filepath='include/trace/hooks/ufshcd.h' line='48' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_send_uic_command' mangled-name='__traceiter_android_vh_ufs_send_uic_command' filepath='include/trace/hooks/ufshcd.h' line='47' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_send_uic_command'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='47' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='47' column='1'/>
+        <parameter type-id='cdf785b8' name='ucmd' filepath='include/trace/hooks/ufshcd.h' line='47' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='include/trace/hooks/ufshcd.h' line='47' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_ufs_update_sysfs' mangled-name='__traceiter_android_vh_ufs_update_sysfs' filepath='include/trace/hooks/ufshcd.h' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_update_sysfs'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='35' column='1'/>
-        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='35' column='1'/>
+      <function-decl name='__traceiter_android_vh_ufs_update_sysfs' mangled-name='__traceiter_android_vh_ufs_update_sysfs' filepath='include/trace/hooks/ufshcd.h' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_ufs_update_sysfs'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/ufshcd.h' line='34' column='1'/>
+        <parameter type-id='442b8d89' name='hba' filepath='include/trace/hooks/ufshcd.h' line='34' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_usb_dev_resume' mangled-name='__traceiter_android_vh_usb_dev_resume' filepath='include/trace/hooks/usb.h' line='20' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_usb_dev_resume'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
-        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
-        <parameter type-id='08496218' name='msg' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
-        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/usb.h' line='20' column='1'/>
+      <function-decl name='__traceiter_android_vh_usb_dev_resume' mangled-name='__traceiter_android_vh_usb_dev_resume' filepath='include/trace/hooks/usb.h' line='19' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_usb_dev_resume'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/usb.h' line='19' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/usb.h' line='19' column='1'/>
+        <parameter type-id='08496218' name='msg' filepath='include/trace/hooks/usb.h' line='19' column='1'/>
+        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/usb.h' line='19' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='__traceiter_android_vh_usb_dev_suspend' mangled-name='__traceiter_android_vh_usb_dev_suspend' filepath='include/trace/hooks/usb.h' line='16' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_usb_dev_suspend'>
-        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
-        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
-        <parameter type-id='08496218' name='msg' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
-        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/usb.h' line='16' column='1'/>
+      <function-decl name='__traceiter_android_vh_usb_dev_suspend' mangled-name='__traceiter_android_vh_usb_dev_suspend' filepath='include/trace/hooks/usb.h' line='15' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_vh_usb_dev_suspend'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/usb.h' line='15' column='1'/>
+        <parameter type-id='25e60cb2' name='udev' filepath='include/trace/hooks/usb.h' line='15' column='1'/>
+        <parameter type-id='08496218' name='msg' filepath='include/trace/hooks/usb.h' line='15' column='1'/>
+        <parameter type-id='7292109c' name='bypass' filepath='include/trace/hooks/usb.h' line='15' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='__traceiter_clock_set_rate' mangled-name='__traceiter_clock_set_rate' filepath='include/trace/events/power.h' line='322' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_clock_set_rate'>
@@ -107232,89 +106976,89 @@
         <parameter type-id='19c2251e' name='act' filepath='include/trace/events/xdp.h' line='28' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <var-decl name='__tracepoint_android_rvh_arm64_serror_panic' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_arm64_serror_panic' visibility='default' filepath='include/trace/hooks/traps.h' line='24' column='1' elf-symbol-id='__tracepoint_android_rvh_arm64_serror_panic'/>
-      <var-decl name='__tracepoint_android_rvh_attach_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_attach_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='408' column='1' elf-symbol-id='__tracepoint_android_rvh_attach_entity_load_avg'/>
-      <var-decl name='__tracepoint_android_rvh_bad_mode' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_bad_mode' visibility='default' filepath='include/trace/hooks/traps.h' line='20' column='1' elf-symbol-id='__tracepoint_android_rvh_bad_mode'/>
-      <var-decl name='__tracepoint_android_rvh_cgroup_force_kthread_migration' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cgroup_force_kthread_migration' visibility='default' filepath='include/trace/hooks/cgroup.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_cgroup_force_kthread_migration'/>
-      <var-decl name='__tracepoint_android_rvh_check_preempt_wakeup' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_check_preempt_wakeup' visibility='default' filepath='include/trace/hooks/sched.h' line='269' column='1' elf-symbol-id='__tracepoint_android_rvh_check_preempt_wakeup'/>
-      <var-decl name='__tracepoint_android_rvh_cpu_cgroup_online' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_cgroup_online' visibility='default' filepath='include/trace/hooks/sched.h' line='212' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_cgroup_online'/>
-      <var-decl name='__tracepoint_android_rvh_cpu_overutilized' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_overutilized' visibility='default' filepath='include/trace/hooks/sched.h' line='124' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_overutilized'/>
-      <var-decl name='__tracepoint_android_rvh_dequeue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='39' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task'/>
-      <var-decl name='__tracepoint_android_rvh_dequeue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='372' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task_fair'/>
-      <var-decl name='__tracepoint_android_rvh_detach_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_detach_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='412' column='1' elf-symbol-id='__tracepoint_android_rvh_detach_entity_load_avg'/>
-      <var-decl name='__tracepoint_android_rvh_die_kernel_fault' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_die_kernel_fault' visibility='default' filepath='include/trace/hooks/fault.h' line='15' column='1' elf-symbol-id='__tracepoint_android_rvh_die_kernel_fault'/>
-      <var-decl name='__tracepoint_android_rvh_do_mem_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_mem_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='23' column='1' elf-symbol-id='__tracepoint_android_rvh_do_mem_abort'/>
-      <var-decl name='__tracepoint_android_rvh_do_sea' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sea' visibility='default' filepath='include/trace/hooks/fault.h' line='19' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sea'/>
-      <var-decl name='__tracepoint_android_rvh_do_sp_pc_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sp_pc_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='27' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sp_pc_abort'/>
-      <var-decl name='__tracepoint_android_rvh_do_undefinstr' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_undefinstr' visibility='default' filepath='include/trace/hooks/traps.h' line='15' column='1' elf-symbol-id='__tracepoint_android_rvh_do_undefinstr'/>
-      <var-decl name='__tracepoint_android_rvh_enqueue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_enqueue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='35' column='1' elf-symbol-id='__tracepoint_android_rvh_enqueue_task'/>
-      <var-decl name='__tracepoint_android_rvh_enqueue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_enqueue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='368' column='1' elf-symbol-id='__tracepoint_android_rvh_enqueue_task_fair'/>
-      <var-decl name='__tracepoint_android_rvh_find_energy_efficient_cpu' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_find_energy_efficient_cpu' visibility='default' filepath='include/trace/hooks/sched.h' line='116' column='1' elf-symbol-id='__tracepoint_android_rvh_find_energy_efficient_cpu'/>
-      <var-decl name='__tracepoint_android_rvh_irqs_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_disable'/>
-      <var-decl name='__tracepoint_android_rvh_irqs_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_enable'/>
-      <var-decl name='__tracepoint_android_rvh_post_init_entity_util_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_post_init_entity_util_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='329' column='1' elf-symbol-id='__tracepoint_android_rvh_post_init_entity_util_avg'/>
-      <var-decl name='__tracepoint_android_rvh_preempt_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_disable'/>
-      <var-decl name='__tracepoint_android_rvh_preempt_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_enable'/>
-      <var-decl name='__tracepoint_android_rvh_remove_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_remove_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='420' column='1' elf-symbol-id='__tracepoint_android_rvh_remove_entity_load_avg'/>
-      <var-decl name='__tracepoint_android_rvh_sched_fork' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_sched_fork' visibility='default' filepath='include/trace/hooks/sched.h' line='149' column='1' elf-symbol-id='__tracepoint_android_rvh_sched_fork'/>
-      <var-decl name='__tracepoint_android_rvh_select_task_rq_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_fair'/>
-      <var-decl name='__tracepoint_android_rvh_select_task_rq_rt' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_rt' visibility='default' filepath='include/trace/hooks/sched.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_rt'/>
-      <var-decl name='__tracepoint_android_rvh_set_iowait' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_set_iowait' visibility='default' filepath='include/trace/hooks/sched.h' line='120' column='1' elf-symbol-id='__tracepoint_android_rvh_set_iowait'/>
-      <var-decl name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' visibility='default' filepath='include/trace/hooks/typec.h' line='32' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_chk_contaminant'/>
-      <var-decl name='__tracepoint_android_rvh_typec_tcpci_get_vbus' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_get_vbus' visibility='default' filepath='include/trace/hooks/typec.h' line='43' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_get_vbus'/>
-      <var-decl name='__tracepoint_android_rvh_uclamp_eff_get' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_eff_get' visibility='default' filepath='include/trace/hooks/sched.h' line='286' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_eff_get'/>
-      <var-decl name='__tracepoint_android_rvh_uclamp_rq_util_with' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_rq_util_with' visibility='default' filepath='include/trace/hooks/sched.h' line='296' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_rq_util_with'/>
-      <var-decl name='__tracepoint_android_rvh_ufs_complete_init' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_complete_init' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_complete_init'/>
-      <var-decl name='__tracepoint_android_rvh_ufs_reprogram_all_keys' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_reprogram_all_keys' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_reprogram_all_keys'/>
-      <var-decl name='__tracepoint_android_rvh_update_blocked_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_blocked_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='424' column='1' elf-symbol-id='__tracepoint_android_rvh_update_blocked_fair'/>
-      <var-decl name='__tracepoint_android_rvh_update_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='416' column='1' elf-symbol-id='__tracepoint_android_rvh_update_load_avg'/>
-      <var-decl name='__tracepoint_android_rvh_util_est_update' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_util_est_update' visibility='default' filepath='include/trace/hooks/sched.h' line='317' column='1' elf-symbol-id='__tracepoint_android_rvh_util_est_update'/>
-      <var-decl name='__tracepoint_android_vh___get_user_pages_remote' type-id='4ca0c298' mangled-name='__tracepoint_android_vh___get_user_pages_remote' visibility='default' filepath='include/trace/hooks/gup.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh___get_user_pages_remote'/>
-      <var-decl name='__tracepoint_android_vh_aes_decrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_decrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_aes_decrypt'/>
-      <var-decl name='__tracepoint_android_vh_aes_encrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_encrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='34' column='1' elf-symbol-id='__tracepoint_android_vh_aes_encrypt'/>
-      <var-decl name='__tracepoint_android_vh_aes_expandkey' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_expandkey' visibility='default' filepath='include/trace/hooks/fips140.h' line='27' column='1' elf-symbol-id='__tracepoint_android_vh_aes_expandkey'/>
-      <var-decl name='__tracepoint_android_vh_arch_set_freq_scale' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_arch_set_freq_scale' visibility='default' filepath='include/trace/hooks/topology.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_arch_set_freq_scale'/>
-      <var-decl name='__tracepoint_android_vh_cma_alloc_finish' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cma_alloc_finish' visibility='default' filepath='include/trace/hooks/mm.h' line='31' column='1' elf-symbol-id='__tracepoint_android_vh_cma_alloc_finish'/>
-      <var-decl name='__tracepoint_android_vh_cma_alloc_start' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cma_alloc_start' visibility='default' filepath='include/trace/hooks/mm.h' line='28' column='1' elf-symbol-id='__tracepoint_android_vh_cma_alloc_start'/>
-      <var-decl name='__tracepoint_android_vh_cpu_idle_enter' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cpu_idle_enter' visibility='default' filepath='include/trace/hooks/cpuidle.h' line='15' column='1' elf-symbol-id='__tracepoint_android_vh_cpu_idle_enter'/>
-      <var-decl name='__tracepoint_android_vh_cpu_idle_exit' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cpu_idle_exit' visibility='default' filepath='include/trace/hooks/cpuidle.h' line='18' column='1' elf-symbol-id='__tracepoint_android_vh_cpu_idle_exit'/>
-      <var-decl name='__tracepoint_android_vh_dup_task_struct' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_dup_task_struct' visibility='default' filepath='include/trace/hooks/sched.h' line='384' column='1' elf-symbol-id='__tracepoint_android_vh_dup_task_struct'/>
-      <var-decl name='__tracepoint_android_vh_enable_thermal_genl_check' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_enable_thermal_genl_check' visibility='default' filepath='include/trace/hooks/thermal.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_enable_thermal_genl_check'/>
-      <var-decl name='__tracepoint_android_vh_ep_create_wakeup_source' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ep_create_wakeup_source' visibility='default' filepath='include/trace/hooks/fs.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_ep_create_wakeup_source'/>
-      <var-decl name='__tracepoint_android_vh_get_user_pages' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_get_user_pages' visibility='default' filepath='include/trace/hooks/gup.h' line='21' column='1' elf-symbol-id='__tracepoint_android_vh_get_user_pages'/>
-      <var-decl name='__tracepoint_android_vh_internal_get_user_pages_fast' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_internal_get_user_pages_fast' visibility='default' filepath='include/trace/hooks/gup.h' line='25' column='1' elf-symbol-id='__tracepoint_android_vh_internal_get_user_pages_fast'/>
-      <var-decl name='__tracepoint_android_vh_ipi_stop' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ipi_stop' visibility='default' filepath='include/trace/hooks/debug.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_ipi_stop'/>
-      <var-decl name='__tracepoint_android_vh_meminfo_proc_show' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_meminfo_proc_show' visibility='default' filepath='include/trace/hooks/mm.h' line='51' column='1' elf-symbol-id='__tracepoint_android_vh_meminfo_proc_show'/>
-      <var-decl name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_mq_rw_recovery'/>
-      <var-decl name='__tracepoint_android_vh_mmc_blk_reset' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_reset' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_reset'/>
-      <var-decl name='__tracepoint_android_vh_of_i2c_get_board_info' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_of_i2c_get_board_info' visibility='default' filepath='include/trace/hooks/i2c.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_of_i2c_get_board_info'/>
-      <var-decl name='__tracepoint_android_vh_pagecache_get_page' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pagecache_get_page' visibility='default' filepath='include/trace/hooks/mm.h' line='41' column='1' elf-symbol-id='__tracepoint_android_vh_pagecache_get_page'/>
-      <var-decl name='__tracepoint_android_vh_pin_user_pages' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pin_user_pages' visibility='default' filepath='include/trace/hooks/gup.h' line='29' column='1' elf-symbol-id='__tracepoint_android_vh_pin_user_pages'/>
-      <var-decl name='__tracepoint_android_vh_rmqueue' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_rmqueue' visibility='default' filepath='include/trace/hooks/mm.h' line='35' column='1' elf-symbol-id='__tracepoint_android_vh_rmqueue'/>
-      <var-decl name='__tracepoint_android_vh_scheduler_tick' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_scheduler_tick' visibility='default' filepath='include/trace/hooks/sched.h' line='31' column='1' elf-symbol-id='__tracepoint_android_vh_scheduler_tick'/>
-      <var-decl name='__tracepoint_android_vh_setscheduler_uclamp' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_setscheduler_uclamp' visibility='default' filepath='include/trace/hooks/sched.h' line='404' column='1' elf-symbol-id='__tracepoint_android_vh_setscheduler_uclamp'/>
-      <var-decl name='__tracepoint_android_vh_sha256' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sha256' visibility='default' filepath='include/trace/hooks/fips140.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_sha256'/>
-      <var-decl name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' visibility='default' filepath='include/trace/hooks/snd_compr.h' line='18' column='1' elf-symbol-id='__tracepoint_android_vh_snd_compr_use_pause_in_drain'/>
-      <var-decl name='__tracepoint_android_vh_sound_usb_support_cpu_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sound_usb_support_cpu_suspend' visibility='default' filepath='include/trace/hooks/sound.h' line='12' column='1' elf-symbol-id='__tracepoint_android_vh_sound_usb_support_cpu_suspend'/>
-      <var-decl name='__tracepoint_android_vh_sysrq_crash' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sysrq_crash' visibility='default' filepath='include/trace/hooks/sysrqcrash.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_sysrq_crash'/>
-      <var-decl name='__tracepoint_android_vh_thermal_pm_notify_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_thermal_pm_notify_suspend' visibility='default' filepath='include/trace/hooks/thermal.h' line='19' column='1' elf-symbol-id='__tracepoint_android_vh_thermal_pm_notify_suspend'/>
-      <var-decl name='__tracepoint_android_vh_timerfd_create' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_timerfd_create' visibility='default' filepath='include/trace/hooks/fs.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_timerfd_create'/>
-      <var-decl name='__tracepoint_android_vh_try_grab_compound_head' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_try_grab_compound_head' visibility='default' filepath='include/trace/hooks/gup.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_try_grab_compound_head'/>
-      <var-decl name='__tracepoint_android_vh_typec_store_partner_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_store_partner_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='51' column='1' elf-symbol-id='__tracepoint_android_vh_typec_store_partner_src_caps'/>
-      <var-decl name='__tracepoint_android_vh_typec_tcpci_override_toggling' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpci_override_toggling' visibility='default' filepath='include/trace/hooks/typec.h' line='28' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpci_override_toggling'/>
-      <var-decl name='__tracepoint_android_vh_typec_tcpm_get_timer' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_get_timer' visibility='default' filepath='include/trace/hooks/typec.h' line='47' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_get_timer'/>
-      <var-decl name='__tracepoint_android_vh_typec_tcpm_log' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_log' visibility='default' filepath='include/trace/hooks/typec.h' line='61' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_log'/>
-      <var-decl name='__tracepoint_android_vh_typec_tcpm_modify_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_modify_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='65' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_modify_src_caps'/>
-      <var-decl name='__tracepoint_android_vh_ufs_check_int_errors' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_check_int_errors' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='57' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_check_int_errors'/>
-      <var-decl name='__tracepoint_android_vh_ufs_compl_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_compl_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='43' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_compl_command'/>
-      <var-decl name='__tracepoint_android_vh_ufs_fill_prdt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_fill_prdt' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_fill_prdt'/>
-      <var-decl name='__tracepoint_android_vh_ufs_prepare_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_prepare_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='30' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_prepare_command'/>
-      <var-decl name='__tracepoint_android_vh_ufs_send_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='39' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_command'/>
-      <var-decl name='__tracepoint_android_vh_ufs_send_tm_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_tm_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='53' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_tm_command'/>
-      <var-decl name='__tracepoint_android_vh_ufs_send_uic_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_uic_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='48' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_uic_command'/>
-      <var-decl name='__tracepoint_android_vh_ufs_update_sysfs' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_update_sysfs' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='35' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_update_sysfs'/>
-      <var-decl name='__tracepoint_android_vh_usb_dev_resume' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_usb_dev_resume' visibility='default' filepath='include/trace/hooks/usb.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_usb_dev_resume'/>
-      <var-decl name='__tracepoint_android_vh_usb_dev_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_usb_dev_suspend' visibility='default' filepath='include/trace/hooks/usb.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_usb_dev_suspend'/>
+      <var-decl name='__tracepoint_android_rvh_arm64_serror_panic' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_arm64_serror_panic' visibility='default' filepath='include/trace/hooks/traps.h' line='23' column='1' elf-symbol-id='__tracepoint_android_rvh_arm64_serror_panic'/>
+      <var-decl name='__tracepoint_android_rvh_attach_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_attach_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='407' column='1' elf-symbol-id='__tracepoint_android_rvh_attach_entity_load_avg'/>
+      <var-decl name='__tracepoint_android_rvh_bad_mode' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_bad_mode' visibility='default' filepath='include/trace/hooks/traps.h' line='19' column='1' elf-symbol-id='__tracepoint_android_rvh_bad_mode'/>
+      <var-decl name='__tracepoint_android_rvh_cgroup_force_kthread_migration' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cgroup_force_kthread_migration' visibility='default' filepath='include/trace/hooks/cgroup.h' line='17' column='1' elf-symbol-id='__tracepoint_android_rvh_cgroup_force_kthread_migration'/>
+      <var-decl name='__tracepoint_android_rvh_check_preempt_wakeup' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_check_preempt_wakeup' visibility='default' filepath='include/trace/hooks/sched.h' line='268' column='1' elf-symbol-id='__tracepoint_android_rvh_check_preempt_wakeup'/>
+      <var-decl name='__tracepoint_android_rvh_cpu_cgroup_online' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_cgroup_online' visibility='default' filepath='include/trace/hooks/sched.h' line='211' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_cgroup_online'/>
+      <var-decl name='__tracepoint_android_rvh_cpu_overutilized' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_cpu_overutilized' visibility='default' filepath='include/trace/hooks/sched.h' line='123' column='1' elf-symbol-id='__tracepoint_android_rvh_cpu_overutilized'/>
+      <var-decl name='__tracepoint_android_rvh_dequeue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='38' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task'/>
+      <var-decl name='__tracepoint_android_rvh_dequeue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_dequeue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='371' column='1' elf-symbol-id='__tracepoint_android_rvh_dequeue_task_fair'/>
+      <var-decl name='__tracepoint_android_rvh_detach_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_detach_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='411' column='1' elf-symbol-id='__tracepoint_android_rvh_detach_entity_load_avg'/>
+      <var-decl name='__tracepoint_android_rvh_die_kernel_fault' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_die_kernel_fault' visibility='default' filepath='include/trace/hooks/fault.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_die_kernel_fault'/>
+      <var-decl name='__tracepoint_android_rvh_do_mem_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_mem_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='22' column='1' elf-symbol-id='__tracepoint_android_rvh_do_mem_abort'/>
+      <var-decl name='__tracepoint_android_rvh_do_sea' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sea' visibility='default' filepath='include/trace/hooks/fault.h' line='18' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sea'/>
+      <var-decl name='__tracepoint_android_rvh_do_sp_pc_abort' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_sp_pc_abort' visibility='default' filepath='include/trace/hooks/fault.h' line='26' column='1' elf-symbol-id='__tracepoint_android_rvh_do_sp_pc_abort'/>
+      <var-decl name='__tracepoint_android_rvh_do_undefinstr' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_do_undefinstr' visibility='default' filepath='include/trace/hooks/traps.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_do_undefinstr'/>
+      <var-decl name='__tracepoint_android_rvh_enqueue_task' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_enqueue_task' visibility='default' filepath='include/trace/hooks/sched.h' line='34' column='1' elf-symbol-id='__tracepoint_android_rvh_enqueue_task'/>
+      <var-decl name='__tracepoint_android_rvh_enqueue_task_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_enqueue_task_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='367' column='1' elf-symbol-id='__tracepoint_android_rvh_enqueue_task_fair'/>
+      <var-decl name='__tracepoint_android_rvh_find_energy_efficient_cpu' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_find_energy_efficient_cpu' visibility='default' filepath='include/trace/hooks/sched.h' line='115' column='1' elf-symbol-id='__tracepoint_android_rvh_find_energy_efficient_cpu'/>
+      <var-decl name='__tracepoint_android_rvh_irqs_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='21' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_disable'/>
+      <var-decl name='__tracepoint_android_rvh_irqs_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='25' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_enable'/>
+      <var-decl name='__tracepoint_android_rvh_post_init_entity_util_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_post_init_entity_util_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='328' column='1' elf-symbol-id='__tracepoint_android_rvh_post_init_entity_util_avg'/>
+      <var-decl name='__tracepoint_android_rvh_preempt_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='13' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_disable'/>
+      <var-decl name='__tracepoint_android_rvh_preempt_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='17' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_enable'/>
+      <var-decl name='__tracepoint_android_rvh_remove_entity_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_remove_entity_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='419' column='1' elf-symbol-id='__tracepoint_android_rvh_remove_entity_load_avg'/>
+      <var-decl name='__tracepoint_android_rvh_sched_fork' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_sched_fork' visibility='default' filepath='include/trace/hooks/sched.h' line='148' column='1' elf-symbol-id='__tracepoint_android_rvh_sched_fork'/>
+      <var-decl name='__tracepoint_android_rvh_select_task_rq_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='13' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_fair'/>
+      <var-decl name='__tracepoint_android_rvh_select_task_rq_rt' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_rt' visibility='default' filepath='include/trace/hooks/sched.h' line='17' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_rt'/>
+      <var-decl name='__tracepoint_android_rvh_set_iowait' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_set_iowait' visibility='default' filepath='include/trace/hooks/sched.h' line='119' column='1' elf-symbol-id='__tracepoint_android_rvh_set_iowait'/>
+      <var-decl name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' visibility='default' filepath='include/trace/hooks/typec.h' line='31' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_chk_contaminant'/>
+      <var-decl name='__tracepoint_android_rvh_typec_tcpci_get_vbus' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_get_vbus' visibility='default' filepath='include/trace/hooks/typec.h' line='42' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_get_vbus'/>
+      <var-decl name='__tracepoint_android_rvh_uclamp_eff_get' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_eff_get' visibility='default' filepath='include/trace/hooks/sched.h' line='285' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_eff_get'/>
+      <var-decl name='__tracepoint_android_rvh_uclamp_rq_util_with' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_rq_util_with' visibility='default' filepath='include/trace/hooks/sched.h' line='295' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_rq_util_with'/>
+      <var-decl name='__tracepoint_android_rvh_ufs_complete_init' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_complete_init' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='21' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_complete_init'/>
+      <var-decl name='__tracepoint_android_rvh_ufs_reprogram_all_keys' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_reprogram_all_keys' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='25' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_reprogram_all_keys'/>
+      <var-decl name='__tracepoint_android_rvh_update_blocked_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_blocked_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='423' column='1' elf-symbol-id='__tracepoint_android_rvh_update_blocked_fair'/>
+      <var-decl name='__tracepoint_android_rvh_update_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='415' column='1' elf-symbol-id='__tracepoint_android_rvh_update_load_avg'/>
+      <var-decl name='__tracepoint_android_rvh_util_est_update' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_util_est_update' visibility='default' filepath='include/trace/hooks/sched.h' line='316' column='1' elf-symbol-id='__tracepoint_android_rvh_util_est_update'/>
+      <var-decl name='__tracepoint_android_vh___get_user_pages_remote' type-id='4ca0c298' mangled-name='__tracepoint_android_vh___get_user_pages_remote' visibility='default' filepath='include/trace/hooks/gup.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh___get_user_pages_remote'/>
+      <var-decl name='__tracepoint_android_vh_aes_decrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_decrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='40' column='1' elf-symbol-id='__tracepoint_android_vh_aes_decrypt'/>
+      <var-decl name='__tracepoint_android_vh_aes_encrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_encrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='33' column='1' elf-symbol-id='__tracepoint_android_vh_aes_encrypt'/>
+      <var-decl name='__tracepoint_android_vh_aes_expandkey' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_expandkey' visibility='default' filepath='include/trace/hooks/fips140.h' line='26' column='1' elf-symbol-id='__tracepoint_android_vh_aes_expandkey'/>
+      <var-decl name='__tracepoint_android_vh_arch_set_freq_scale' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_arch_set_freq_scale' visibility='default' filepath='include/trace/hooks/topology.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_arch_set_freq_scale'/>
+      <var-decl name='__tracepoint_android_vh_cma_alloc_finish' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cma_alloc_finish' visibility='default' filepath='include/trace/hooks/mm.h' line='30' column='1' elf-symbol-id='__tracepoint_android_vh_cma_alloc_finish'/>
+      <var-decl name='__tracepoint_android_vh_cma_alloc_start' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cma_alloc_start' visibility='default' filepath='include/trace/hooks/mm.h' line='27' column='1' elf-symbol-id='__tracepoint_android_vh_cma_alloc_start'/>
+      <var-decl name='__tracepoint_android_vh_cpu_idle_enter' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cpu_idle_enter' visibility='default' filepath='include/trace/hooks/cpuidle.h' line='14' column='1' elf-symbol-id='__tracepoint_android_vh_cpu_idle_enter'/>
+      <var-decl name='__tracepoint_android_vh_cpu_idle_exit' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_cpu_idle_exit' visibility='default' filepath='include/trace/hooks/cpuidle.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_cpu_idle_exit'/>
+      <var-decl name='__tracepoint_android_vh_dup_task_struct' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_dup_task_struct' visibility='default' filepath='include/trace/hooks/sched.h' line='383' column='1' elf-symbol-id='__tracepoint_android_vh_dup_task_struct'/>
+      <var-decl name='__tracepoint_android_vh_enable_thermal_genl_check' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_enable_thermal_genl_check' visibility='default' filepath='include/trace/hooks/thermal.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_enable_thermal_genl_check'/>
+      <var-decl name='__tracepoint_android_vh_ep_create_wakeup_source' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ep_create_wakeup_source' visibility='default' filepath='include/trace/hooks/fs.h' line='12' column='1' elf-symbol-id='__tracepoint_android_vh_ep_create_wakeup_source'/>
+      <var-decl name='__tracepoint_android_vh_get_user_pages' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_get_user_pages' visibility='default' filepath='include/trace/hooks/gup.h' line='20' column='1' elf-symbol-id='__tracepoint_android_vh_get_user_pages'/>
+      <var-decl name='__tracepoint_android_vh_internal_get_user_pages_fast' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_internal_get_user_pages_fast' visibility='default' filepath='include/trace/hooks/gup.h' line='24' column='1' elf-symbol-id='__tracepoint_android_vh_internal_get_user_pages_fast'/>
+      <var-decl name='__tracepoint_android_vh_ipi_stop' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ipi_stop' visibility='default' filepath='include/trace/hooks/debug.h' line='15' column='1' elf-symbol-id='__tracepoint_android_vh_ipi_stop'/>
+      <var-decl name='__tracepoint_android_vh_meminfo_proc_show' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_meminfo_proc_show' visibility='default' filepath='include/trace/hooks/mm.h' line='50' column='1' elf-symbol-id='__tracepoint_android_vh_meminfo_proc_show'/>
+      <var-decl name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_mq_rw_recovery' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='19' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_mq_rw_recovery'/>
+      <var-decl name='__tracepoint_android_vh_mmc_blk_reset' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_mmc_blk_reset' visibility='default' filepath='include/trace/hooks/mmc_core.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_mmc_blk_reset'/>
+      <var-decl name='__tracepoint_android_vh_of_i2c_get_board_info' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_of_i2c_get_board_info' visibility='default' filepath='include/trace/hooks/i2c.h' line='12' column='1' elf-symbol-id='__tracepoint_android_vh_of_i2c_get_board_info'/>
+      <var-decl name='__tracepoint_android_vh_pagecache_get_page' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pagecache_get_page' visibility='default' filepath='include/trace/hooks/mm.h' line='40' column='1' elf-symbol-id='__tracepoint_android_vh_pagecache_get_page'/>
+      <var-decl name='__tracepoint_android_vh_pin_user_pages' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_pin_user_pages' visibility='default' filepath='include/trace/hooks/gup.h' line='28' column='1' elf-symbol-id='__tracepoint_android_vh_pin_user_pages'/>
+      <var-decl name='__tracepoint_android_vh_rmqueue' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_rmqueue' visibility='default' filepath='include/trace/hooks/mm.h' line='34' column='1' elf-symbol-id='__tracepoint_android_vh_rmqueue'/>
+      <var-decl name='__tracepoint_android_vh_scheduler_tick' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_scheduler_tick' visibility='default' filepath='include/trace/hooks/sched.h' line='30' column='1' elf-symbol-id='__tracepoint_android_vh_scheduler_tick'/>
+      <var-decl name='__tracepoint_android_vh_setscheduler_uclamp' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_setscheduler_uclamp' visibility='default' filepath='include/trace/hooks/sched.h' line='403' column='1' elf-symbol-id='__tracepoint_android_vh_setscheduler_uclamp'/>
+      <var-decl name='__tracepoint_android_vh_sha256' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sha256' visibility='default' filepath='include/trace/hooks/fips140.h' line='19' column='1' elf-symbol-id='__tracepoint_android_vh_sha256'/>
+      <var-decl name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_snd_compr_use_pause_in_drain' visibility='default' filepath='include/trace/hooks/snd_compr.h' line='17' column='1' elf-symbol-id='__tracepoint_android_vh_snd_compr_use_pause_in_drain'/>
+      <var-decl name='__tracepoint_android_vh_sound_usb_support_cpu_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sound_usb_support_cpu_suspend' visibility='default' filepath='include/trace/hooks/sound.h' line='11' column='1' elf-symbol-id='__tracepoint_android_vh_sound_usb_support_cpu_suspend'/>
+      <var-decl name='__tracepoint_android_vh_sysrq_crash' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_sysrq_crash' visibility='default' filepath='include/trace/hooks/sysrqcrash.h' line='13' column='1' elf-symbol-id='__tracepoint_android_vh_sysrq_crash'/>
+      <var-decl name='__tracepoint_android_vh_thermal_pm_notify_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_thermal_pm_notify_suspend' visibility='default' filepath='include/trace/hooks/thermal.h' line='18' column='1' elf-symbol-id='__tracepoint_android_vh_thermal_pm_notify_suspend'/>
+      <var-decl name='__tracepoint_android_vh_timerfd_create' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_timerfd_create' visibility='default' filepath='include/trace/hooks/fs.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_timerfd_create'/>
+      <var-decl name='__tracepoint_android_vh_try_grab_compound_head' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_try_grab_compound_head' visibility='default' filepath='include/trace/hooks/gup.h' line='12' column='1' elf-symbol-id='__tracepoint_android_vh_try_grab_compound_head'/>
+      <var-decl name='__tracepoint_android_vh_typec_store_partner_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_store_partner_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='50' column='1' elf-symbol-id='__tracepoint_android_vh_typec_store_partner_src_caps'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpci_override_toggling' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpci_override_toggling' visibility='default' filepath='include/trace/hooks/typec.h' line='27' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpci_override_toggling'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpm_get_timer' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_get_timer' visibility='default' filepath='include/trace/hooks/typec.h' line='46' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_get_timer'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpm_log' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_log' visibility='default' filepath='include/trace/hooks/typec.h' line='60' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_log'/>
+      <var-decl name='__tracepoint_android_vh_typec_tcpm_modify_src_caps' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_typec_tcpm_modify_src_caps' visibility='default' filepath='include/trace/hooks/typec.h' line='64' column='1' elf-symbol-id='__tracepoint_android_vh_typec_tcpm_modify_src_caps'/>
+      <var-decl name='__tracepoint_android_vh_ufs_check_int_errors' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_check_int_errors' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='56' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_check_int_errors'/>
+      <var-decl name='__tracepoint_android_vh_ufs_compl_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_compl_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='42' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_compl_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_fill_prdt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_fill_prdt' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_fill_prdt'/>
+      <var-decl name='__tracepoint_android_vh_ufs_prepare_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_prepare_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='29' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_prepare_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_send_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='38' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_send_tm_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_tm_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='52' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_tm_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_send_uic_command' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_send_uic_command' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='47' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_send_uic_command'/>
+      <var-decl name='__tracepoint_android_vh_ufs_update_sysfs' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_ufs_update_sysfs' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='34' column='1' elf-symbol-id='__tracepoint_android_vh_ufs_update_sysfs'/>
+      <var-decl name='__tracepoint_android_vh_usb_dev_resume' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_usb_dev_resume' visibility='default' filepath='include/trace/hooks/usb.h' line='19' column='1' elf-symbol-id='__tracepoint_android_vh_usb_dev_resume'/>
+      <var-decl name='__tracepoint_android_vh_usb_dev_suspend' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_usb_dev_suspend' visibility='default' filepath='include/trace/hooks/usb.h' line='15' column='1' elf-symbol-id='__tracepoint_android_vh_usb_dev_suspend'/>
       <var-decl name='__tracepoint_clock_set_rate' type-id='4ca0c298' mangled-name='__tracepoint_clock_set_rate' visibility='default' filepath='include/trace/events/power.h' line='322' column='1' elf-symbol-id='__tracepoint_clock_set_rate'/>
       <var-decl name='__tracepoint_cpu_frequency' type-id='4ca0c298' mangled-name='__tracepoint_cpu_frequency' visibility='default' filepath='include/trace/events/power.h' line='145' column='1' elf-symbol-id='__tracepoint_cpu_frequency'/>
       <var-decl name='__tracepoint_device_pm_callback_end' type-id='4ca0c298' mangled-name='__tracepoint_device_pm_callback_end' visibility='default' filepath='include/trace/events/power.h' line='204' column='1' elf-symbol-id='__tracepoint_device_pm_callback_end'/>
@@ -107774,13 +107518,6 @@
         <parameter type-id='95e97e5e' name='flags' filepath='fs/anon_inodes.c' line='198' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='anon_inode_getfile' mangled-name='anon_inode_getfile' filepath='fs/anon_inodes.c' line='143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='anon_inode_getfile'>
-        <parameter type-id='80f4b756' name='name' filepath='fs/anon_inodes.c' line='143' column='1'/>
-        <parameter type-id='61758ee5' name='fops' filepath='fs/anon_inodes.c' line='144' column='1'/>
-        <parameter type-id='eaa32e2f' name='priv' filepath='fs/anon_inodes.c' line='145' column='1'/>
-        <parameter type-id='95e97e5e' name='flags' filepath='fs/anon_inodes.c' line='145' column='1'/>
-        <return type-id='77e79a4b'/>
-      </function-decl>
       <var-decl name='arch_timer_read_counter' type-id='0e70db3e' mangled-name='arch_timer_read_counter' visibility='default' filepath='drivers/clocksource/arm_arch_timer.c' line='182' column='1' elf-symbol-id='arch_timer_read_counter'/>
       <function-decl name='argv_free' mangled-name='argv_free' filepath='lib/argv_split.c' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='argv_free'>
         <parameter type-id='9b23c9ad' name='argv' filepath='lib/argv_split.c' line='35' column='1'/>
@@ -109289,13 +109026,6 @@
         <parameter type-id='7359adad' name='len' filepath='kernel/compat.c' line='277' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='compat_only_sysfs_link_entry_to_kobj' mangled-name='compat_only_sysfs_link_entry_to_kobj' filepath='fs/sysfs/group.c' line='427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_only_sysfs_link_entry_to_kobj'>
-        <parameter type-id='d30bdc51' name='kobj' filepath='fs/sysfs/group.c' line='427' column='1'/>
-        <parameter type-id='d30bdc51' name='target_kobj' filepath='fs/sysfs/group.c' line='428' column='1'/>
-        <parameter type-id='80f4b756' name='target_name' filepath='fs/sysfs/group.c' line='429' column='1'/>
-        <parameter type-id='80f4b756' name='symlink_name' filepath='fs/sysfs/group.c' line='430' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
       <function-decl name='compat_ptr_ioctl' mangled-name='compat_ptr_ioctl' filepath='fs/ioctl.c' line='784' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='compat_ptr_ioctl'>
         <parameter type-id='77e79a4b' name='file' filepath='fs/ioctl.c' line='784' column='1'/>
         <parameter type-id='f0981eeb' name='cmd' filepath='fs/ioctl.c' line='784' column='1'/>
@@ -110754,11 +110484,6 @@
         <parameter type-id='eaa32e2f' name='fwnode' filepath='drivers/base/core.c' line='4656' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='device_match_name' mangled-name='device_match_name' filepath='drivers/base/core.c' line='4644' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_match_name'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='4644' column='1'/>
-        <parameter type-id='eaa32e2f' name='name' filepath='drivers/base/core.c' line='4644' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
       <function-decl name='device_property_present' mangled-name='device_property_present' filepath='drivers/base/property.c' line='35' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='device_property_present'>
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/property.c' line='35' column='1'/>
         <parameter type-id='80f4b756' name='propname' filepath='drivers/base/property.c' line='35' column='1'/>
@@ -113615,7 +113340,6 @@
         <return type-id='48b5725f'/>
       </function-decl>
       <var-decl name='efi' type-id='f7bdefe9' mangled-name='efi' visibility='default' filepath='drivers/firmware/efi/efi.c' line='37' column='1' elf-symbol-id='efi'/>
-      <var-decl name='efi_tpm_final_log_size' type-id='95e97e5e' mangled-name='efi_tpm_final_log_size' visibility='default' filepath='drivers/firmware/efi/tpm.c' line='16' column='1' elf-symbol-id='efi_tpm_final_log_size'/>
       <function-decl name='em_cpu_get' mangled-name='em_cpu_get' filepath='kernel/power/energy_model.c' line='241' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='em_cpu_get'>
         <parameter type-id='95e97e5e' name='cpu' filepath='kernel/power/energy_model.c' line='241' column='1'/>
         <return type-id='ce714046'/>
@@ -113752,7 +113476,7 @@
         <parameter type-id='d504f73d' name='nb' filepath='drivers/extcon/extcon.c' line='929' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <var-decl name='failure_tracking' type-id='49a0ad34' mangled-name='failure_tracking' visibility='default' filepath='mm/page_pinner.c' line='61' column='1' elf-symbol-id='failure_tracking'/>
+      <var-decl name='failure_tracking' type-id='49a0ad34' mangled-name='failure_tracking' visibility='default' filepath='mm/page_pinner.c' line='60' column='1' elf-symbol-id='failure_tracking'/>
       <function-decl name='fasync_helper' mangled-name='fasync_helper' filepath='fs/fcntl.c' line='982' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='fasync_helper'>
         <parameter type-id='95e97e5e' name='fd' filepath='fs/fcntl.c' line='982' column='1'/>
         <parameter type-id='77e79a4b' name='filp' filepath='fs/fcntl.c' line='982' column='1'/>
@@ -114198,29 +113922,29 @@
         <parameter type-id='f0981eeb' name='flags' filepath='fs/file.c' line='561' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1905' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1905' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1905' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1906' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1906' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1907' column='1'/>
+      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1876' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1876' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1877' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1877' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1878' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2803' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2803' column='1'/>
-        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2803' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2804' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2804' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1858' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1858' column='1'/>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1859' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1859' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1860' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1860' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1861' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1861' column='1'/>
+      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2774' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2774' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2774' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2775' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2775' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1829' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1830' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1830' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1831' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1831' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1832' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1832' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='get_vaddr_frames' mangled-name='get_vaddr_frames' filepath='mm/frame_vector.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_vaddr_frames'>
@@ -114313,28 +114037,6 @@
         <parameter type-id='80f4b756' name='str' filepath='lib/glob.c' line='40' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='gnss_allocate_device' mangled-name='gnss_allocate_device' filepath='drivers/gnss/core.c' line='224' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_allocate_device'>
-        <parameter type-id='fa0b179b' name='parent' filepath='drivers/gnss/core.c' line='224' column='1'/>
-        <return type-id='94411a61'/>
-      </function-decl>
-      <function-decl name='gnss_deregister_device' mangled-name='gnss_deregister_device' filepath='drivers/gnss/core.c' line='301' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_deregister_device'>
-        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='301' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='gnss_insert_raw' mangled-name='gnss_insert_raw' filepath='drivers/gnss/core.c' line='320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_insert_raw'>
-        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='320' column='1'/>
-        <parameter type-id='354f7eb9' name='buf' filepath='drivers/gnss/core.c' line='320' column='1'/>
-        <parameter type-id='b59d7dce' name='count' filepath='drivers/gnss/core.c' line='321' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='gnss_put_device' mangled-name='gnss_put_device' filepath='drivers/gnss/core.c' line='277' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_put_device'>
-        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='277' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='gnss_register_device' mangled-name='gnss_register_device' filepath='drivers/gnss/core.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gnss_register_device'>
-        <parameter type-id='94411a61' name='gdev' filepath='drivers/gnss/core.c' line='283' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
       <function-decl name='gov_attr_set_get' mangled-name='gov_attr_set_get' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='57' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gov_attr_set_get'>
         <parameter type-id='902fed1a' name='attr_set' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='57' column='1'/>
         <parameter type-id='e84b031a' name='list_node' filepath='drivers/cpufreq/cpufreq_governor_attr_set.c' line='57' column='1'/>
@@ -114562,7 +114264,6 @@
         <parameter type-id='95e97e5e' name='key' filepath='drivers/tty/sysrq.c' line='631' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <var-decl name='hash_digest_size' type-id='9208c5df' mangled-name='hash_digest_size' visibility='default' filepath='crypto/hash_info.c' line='35' column='1' elf-symbol-id='hash_digest_size'/>
       <function-decl name='hashlen_string' mangled-name='hashlen_string' filepath='fs/namei.c' line='2076' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='hashlen_string'>
         <parameter type-id='eaa32e2f' name='salt' filepath='fs/namei.c' line='2076' column='1'/>
         <parameter type-id='80f4b756' name='name' filepath='fs/namei.c' line='2076' column='1'/>
@@ -115045,12 +114746,6 @@
         <parameter type-id='7359adad' name='id' filepath='lib/idr.c' line='152' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='idr_replace' mangled-name='idr_replace' filepath='lib/idr.c' line='290' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='idr_replace'>
-        <parameter type-id='301185b4' name='idr' filepath='lib/idr.c' line='290' column='1'/>
-        <parameter type-id='eaa32e2f' name='ptr' filepath='lib/idr.c' line='290' column='1'/>
-        <parameter type-id='7359adad' name='id' filepath='lib/idr.c' line='290' column='1'/>
-        <return type-id='eaa32e2f'/>
-      </function-decl>
       <function-decl name='ieee80211_alloc_hw_nm' mangled-name='ieee80211_alloc_hw_nm' filepath='net/mac80211/main.c' line='527' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ieee80211_alloc_hw_nm'>
         <parameter type-id='b59d7dce' name='priv_data_len' filepath='net/mac80211/main.c' line='527' column='1'/>
         <parameter type-id='4b9cfd93' name='ops' filepath='net/mac80211/main.c' line='528' column='1'/>
@@ -116587,24 +116282,6 @@
         <parameter type-id='bd1c8eb6' name='led_cdev' filepath='drivers/leds/led-class.c' line='431' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='led_set_brightness_nosleep' mangled-name='led_set_brightness_nosleep' filepath='drivers/leds/led-core.c' line='284' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_set_brightness_nosleep'>
-        <parameter type-id='bd1c8eb6' name='led_cdev' filepath='drivers/leds/led-core.c' line='284' column='1'/>
-        <parameter type-id='fa598f35' name='value' filepath='drivers/leds/led-core.c' line='285' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='led_trigger_event' mangled-name='led_trigger_event' filepath='drivers/leds/led-triggers.c' line='377' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_event'>
-        <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='377' column='1'/>
-        <parameter type-id='fa598f35' name='brightness' filepath='drivers/leds/led-triggers.c' line='378' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='led_trigger_register' mangled-name='led_trigger_register' filepath='drivers/leds/led-triggers.c' line='283' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_register'>
-        <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='283' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='led_trigger_unregister' mangled-name='led_trigger_unregister' filepath='drivers/leds/led-triggers.c' line='323' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='led_trigger_unregister'>
-        <parameter type-id='db6d90a1' name='trig' filepath='drivers/leds/led-triggers.c' line='323' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
       <function-decl name='list_sort' mangled-name='list_sort' filepath='lib/list_sort.c' line='185' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='list_sort'>
         <parameter type-id='eaa32e2f' name='priv' filepath='lib/list_sort.c' line='185' column='1'/>
         <parameter type-id='e84b031a' name='head' filepath='lib/list_sort.c' line='185' column='1'/>
@@ -118694,29 +118371,29 @@
         <parameter type-id='20f5f452' name='pin' filepath='drivers/pinctrl/core.c' line='167' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2940' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2940' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2940' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2941' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2941' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2942' column='1'/>
+      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2911' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2911' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2912' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2912' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2913' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2836' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2836' column='1'/>
-        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2836' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2837' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2837' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2907' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2907' column='1'/>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2908' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2908' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2909' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2909' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2910' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2910' column='1'/>
+      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2807' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2807' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2808' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2808' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2878' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2878' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2879' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2879' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2880' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2880' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2881' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2881' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='pinconf_generic_dt_free_map' mangled-name='pinconf_generic_dt_free_map' filepath='drivers/pinctrl/pinconf-generic.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinconf_generic_dt_free_map'>
@@ -120541,23 +120218,6 @@
         <parameter type-id='95e97e5e' name='count' filepath='drivers/mmc/core/sdio_io.c' line='520' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='securityfs_create_dir' mangled-name='securityfs_create_dir' filepath='security/inode.c' line='228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_create_dir'>
-        <parameter type-id='80f4b756' name='name' filepath='security/inode.c' line='228' column='1'/>
-        <parameter type-id='27675065' name='parent' filepath='security/inode.c' line='228' column='1'/>
-        <return type-id='27675065'/>
-      </function-decl>
-      <function-decl name='securityfs_create_file' mangled-name='securityfs_create_file' filepath='security/inode.c' line='200' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_create_file'>
-        <parameter type-id='80f4b756' name='name' filepath='security/inode.c' line='200' column='1'/>
-        <parameter type-id='2594b00f' name='mode' filepath='security/inode.c' line='200' column='1'/>
-        <parameter type-id='27675065' name='parent' filepath='security/inode.c' line='201' column='1'/>
-        <parameter type-id='eaa32e2f' name='data' filepath='security/inode.c' line='201' column='1'/>
-        <parameter type-id='61758ee5' name='fops' filepath='security/inode.c' line='202' column='1'/>
-        <return type-id='27675065'/>
-      </function-decl>
-      <function-decl name='securityfs_remove' mangled-name='securityfs_remove' filepath='security/inode.c' line='295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='securityfs_remove'>
-        <parameter type-id='27675065' name='dentry' filepath='security/inode.c' line='295' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
       <function-decl name='send_sig_info' mangled-name='send_sig_info' filepath='kernel/signal.c' line='1609' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='send_sig_info'>
         <parameter type-id='95e97e5e' name='sig' filepath='kernel/signal.c' line='1609' column='1'/>
         <parameter type-id='0effb5d0' name='info' filepath='kernel/signal.c' line='1609' column='1'/>
@@ -120631,40 +120291,6 @@
         <parameter type-id='b59d7dce' name='len' filepath='fs/seq_file.c' line='818' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='serdev_device_close' mangled-name='serdev_device_close' filepath='drivers/tty/serdev/core.c' line='197' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_close'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='197' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='serdev_device_open' mangled-name='serdev_device_open' filepath='drivers/tty/serdev/core.c' line='169' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_open'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='169' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='serdev_device_set_baudrate' mangled-name='serdev_device_set_baudrate' filepath='drivers/tty/serdev/core.c' line='362' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_set_baudrate'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='362' column='1'/>
-        <parameter type-id='f0981eeb' name='speed' filepath='drivers/tty/serdev/core.c' line='362' column='1'/>
-        <return type-id='f0981eeb'/>
-      </function-decl>
-      <function-decl name='serdev_device_set_flow_control' mangled-name='serdev_device_set_flow_control' filepath='drivers/tty/serdev/core.c' line='374' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_set_flow_control'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='374' column='1'/>
-        <parameter type-id='b50a4934' name='enable' filepath='drivers/tty/serdev/core.c' line='374' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='serdev_device_wait_until_sent' mangled-name='serdev_device_wait_until_sent' filepath='drivers/tty/serdev/core.c' line='397' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_wait_until_sent'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='397' column='1'/>
-        <parameter type-id='bd54fe1a' name='timeout' filepath='drivers/tty/serdev/core.c' line='397' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
-      <function-decl name='serdev_device_write' mangled-name='serdev_device_write' filepath='drivers/tty/serdev/core.c' line='292' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_write'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='292' column='1'/>
-        <parameter type-id='354f7eb9' name='buf' filepath='drivers/tty/serdev/core.c' line='293' column='1'/>
-        <parameter type-id='b59d7dce' name='count' filepath='drivers/tty/serdev/core.c' line='293' column='1'/>
-        <parameter type-id='bd54fe1a' name='timeout' filepath='drivers/tty/serdev/core.c' line='294' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='serdev_device_write_wakeup' mangled-name='serdev_device_write_wakeup' filepath='drivers/tty/serdev/core.c' line='237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serdev_device_write_wakeup'>
-        <parameter type-id='97fbef77' name='serdev' filepath='drivers/tty/serdev/core.c' line='237' column='1'/>
-        <return type-id='48b5725f'/>
-      </function-decl>
       <function-decl name='serio_close' mangled-name='serio_close' filepath='drivers/input/serio/serio.c' line='984' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='serio_close'>
         <parameter type-id='95dc69d1' name='serio' filepath='drivers/input/serio/serio.c' line='984' column='1'/>
         <return type-id='48b5725f'/>
@@ -123103,8 +122729,8 @@
         <parameter type-id='95e97e5e' name='even_cows' filepath='mm/memory.c' line='3539' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/gup.c' line='261' column='1'/>
+      <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/gup.c' line='250' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unregister_blkdev' mangled-name='unregister_blkdev' filepath='block/genhd.c' line='504' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_blkdev'>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 1388ae9831dcb..435c393990dca 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1445,7 +1445,6 @@
   __page_frag_cache_drain
   page_frag_free
   page_mapping
-  __page_pinner_migration_failed
   panic
   panic_notifier_list
   param_array_ops
diff --git a/android/abi_gki_aarch64_hikey960 b/android/abi_gki_aarch64_hikey960
index 0609f21fcd3b7..eb9e5e3809909 100644
--- a/android/abi_gki_aarch64_hikey960
+++ b/android/abi_gki_aarch64_hikey960
@@ -791,7 +791,6 @@
   of_get_next_available_child
   of_parse_phandle
   of_property_read_u64
-  __page_pinner_migration_failed
   __put_page
   put_unused_fd
   rb_erase
diff --git a/android/abi_gki_aarch64_virtual_device b/android/abi_gki_aarch64_virtual_device
index 932cb8b3520d7..9968c643ed6bd 100644
--- a/android/abi_gki_aarch64_virtual_device
+++ b/android/abi_gki_aarch64_virtual_device
@@ -28,9 +28,6 @@
   bt_warn
   cancel_delayed_work_sync
   cancel_work_sync
-  capable
-  cfg80211_inform_bss_data
-  cfg80211_put_bss
   __cfi_slowpath
   __check_object_size
   __class_create
@@ -62,15 +59,12 @@
   delayed_work_timer_fn
   del_gendisk
   del_timer
-  del_timer_sync
   destroy_workqueue
   dev_close
   _dev_err
   device_add_disk
   device_create
-  device_initialize
   device_init_wakeup
-  device_register
   device_release_driver
   device_unregister
   _dev_info
@@ -82,7 +76,6 @@
   devm_request_threaded_irq
   _dev_notice
   dev_queue_xmit
-  dev_set_name
   _dev_warn
   dma_alloc_attrs
   dma_buf_export
@@ -96,7 +89,6 @@
   dma_set_mask
   dma_sync_sg_for_device
   dma_unmap_sg_attrs
-  down_read
   down_write
   ether_setup
   ethtool_op_get_link
@@ -123,14 +115,8 @@
   hci_recv_frame
   hci_register_dev
   hci_unregister_dev
-  hwrng_register
-  hwrng_unregister
   ida_alloc_range
   ida_free
-  idr_alloc
-  idr_destroy
-  idr_remove
-  __init_rwsem
   __init_swait_queue_head
   init_timer_key
   init_wait_entry
@@ -160,12 +146,10 @@
   kmem_cache_free
   kmemdup
   kobject_uevent
-  krealloc
   kstrdup
   kstrndup
   kstrtoint
   kstrtouint
-  kstrtoull
   ktime_get
   ktime_get_mono_fast_ns
   ktime_get_raw_ts64
@@ -184,13 +168,10 @@
   memcpy
   memmove
   memparse
-  memremap
   memset
   memstart_addr
-  memunmap
   misc_deregister
   misc_register
-  mod_timer
   module_layout
   module_put
   __msecs_to_jiffies
@@ -216,15 +197,11 @@
   nf_conntrack_destroy
   no_llseek
   nonseekable_open
-  noop_llseek
   nr_cpu_ids
   __num_online_cpus
-  of_find_property
-  of_get_property
   of_property_read_variable_u32_array
-  __page_pinner_migration_failed
+  __page_pinner_put_page
   param_ops_bool
-  param_ops_charp
   param_ops_int
   param_ops_uint
   passthru_features_check
@@ -250,11 +227,8 @@
   platform_get_irq
   platform_get_resource
   pm_runtime_allow
-  __pm_runtime_disable
-  pm_runtime_enable
   pm_runtime_force_resume
   pm_runtime_force_suspend
-  __pm_runtime_idle
   __pm_runtime_resume
   pm_runtime_set_autosuspend_delay
   __pm_runtime_suspend
@@ -305,9 +279,7 @@
   schedule
   schedule_timeout
   scnprintf
-  seq_lseek
   seq_printf
-  seq_read
   serio_close
   serio_interrupt
   serio_open
@@ -330,7 +302,6 @@
   snd_card_free
   snd_card_new
   snd_card_register
-  snd_ctl_enum_info
   snd_ctl_sync_vmaster
   snd_device_new
   snd_jack_new
@@ -355,13 +326,11 @@
   strncmp
   strncpy
   strscpy
-  strsep
   sync_file_create
   synchronize_rcu
   sysfs_create_group
   __sysfs_match_string
   sysfs_remove_group
-  sysfs_remove_link
   system_wq
   trace_event_buffer_commit
   trace_event_buffer_reserve
@@ -385,7 +354,6 @@
   unregister_netdevice_queue
   unregister_virtio_device
   unregister_virtio_driver
-  up_read
   up_write
   usb_alloc_urb
   usb_anchor_urb
@@ -396,7 +364,6 @@
   usb_register_driver
   usb_submit_urb
   usb_unanchor_urb
-  __usecs_to_jiffies
   usleep_range
   vabits_actual
   vfree
@@ -457,10 +424,12 @@
   mmc_remove_host
   mmc_request_done
   mmc_send_tuning
+  of_get_property
   pinctrl_lookup_state
   pinctrl_pm_select_sleep_state
   pinctrl_select_default_state
   pinctrl_select_state
+  __pm_runtime_idle
   regulator_disable
   regulator_enable
   reset_control_assert
@@ -525,26 +494,9 @@
   netdev_master_upper_dev_link
   rtnl_is_locked
 
-# required by gnss-cmdline.ko
-  bus_find_device
-  device_find_child
-  device_match_name
-  platform_bus_type
-  strstr
-
-# required by gnss-serial.ko
-  gnss_allocate_device
-  gnss_deregister_device
-  gnss_insert_raw
-  gnss_put_device
-  gnss_register_device
-  serdev_device_close
-  serdev_device_open
-  serdev_device_set_baudrate
-  serdev_device_set_flow_control
-  serdev_device_wait_until_sent
-  serdev_device_write
-  serdev_device_write_wakeup
+# required by goldfish_address_space.ko
+  memremap
+  memunmap
 
 # required by goldfish_battery.ko
   power_supply_changed
@@ -584,12 +536,6 @@
   skb_queue_head
   skb_queue_purge
 
-# required by ledtrig-audio.ko
-  led_set_brightness_nosleep
-  led_trigger_event
-  led_trigger_register
-  led_trigger_unregister
-
 # required by lzo-rle.ko
   lzorle1x_1_compress
 
@@ -699,11 +645,15 @@
 # required by open-dice.ko
   devm_memremap
   devm_memunmap
+  of_reserved_mem_lookup
+  __platform_driver_probe
+  simple_read_from_buffer
   vm_iomap_memory
 
 # required by psmouse.ko
   bus_register_notifier
   bus_unregister_notifier
+  del_timer_sync
   device_add_groups
   device_create_file
   device_remove_file
@@ -724,6 +674,7 @@
   input_set_capability
   kstrtobool
   kstrtou8
+  mod_timer
   ps2_begin_command
   ps2_cmd_aborted
   ps2_command
@@ -737,6 +688,7 @@
   serio_rescan
   serio_unregister_child_port
   strcasecmp
+  strsep
 
 # required by pulse8-cec.ko
   cec_allocate_adapter
@@ -759,6 +711,7 @@
   rtc_update_irq
 
 # required by slcan.ko
+  capable
   hex_asc_upper
   hex_to_bin
   msleep_interruptible
@@ -769,7 +722,6 @@
 
 # required by snd-hda-codec-generic.ko
   _ctype
-  devm_led_classdev_register_ext
   snd_ctl_boolean_stereo_info
   strlcat
   __sw_hweight32
@@ -783,6 +735,8 @@
   get_device_system_crosststamp
   kvasprintf
   ns_to_timespec64
+  __pm_runtime_disable
+  pm_runtime_enable
   pm_runtime_forbid
   __printk_ratelimit
   regcache_mark_dirty
@@ -794,6 +748,7 @@
   snd_ctl_add_vmaster_hook
   snd_ctl_apply_vmaster_followers
   snd_ctl_boolean_mono_info
+  snd_ctl_enum_info
   snd_ctl_find_id
   snd_ctl_make_virtual_master
   snd_ctl_new1
@@ -817,11 +772,14 @@
   bus_unregister
   device_add
   device_del
+  device_initialize
+  dev_set_name
   kasprintf
   kobject_add
   kobject_create_and_add
   kobject_init
   kobject_put
+  krealloc
   pm_runtime_get_if_active
   __pm_runtime_set_status
   prepare_to_wait
@@ -840,6 +798,7 @@
   param_array_ops
   param_get_int
   param_ops_bint
+  param_ops_charp
   param_set_int
   pci_dev_put
   pci_disable_msi
@@ -873,35 +832,6 @@
   vmap
   vunmap
 
-# required by tpm.ko
-  alloc_chrdev_region
-  cdev_device_add
-  cdev_device_del
-  cdev_init
-  compat_only_sysfs_link_entry_to_kobj
-  devm_add_action
-  efi
-  efi_tpm_final_log_size
-  hash_digest_size
-  idr_get_next
-  idr_replace
-  jiffies_to_usecs
-  memchr_inv
-  of_property_match_string
-  pm_suspend_global_flags
-  securityfs_create_dir
-  securityfs_create_file
-  securityfs_remove
-  seq_open
-  seq_putc
-  seq_release
-  seq_write
-  unregister_chrdev_region
-
-# required by tpm_vtpm_proxy.ko
-  anon_inode_getfile
-  compat_ptr_ioctl
-
 # required by usbip-core.ko
   iov_iter_kvec
   param_ops_ulong
@@ -917,10 +847,12 @@
   devres_free
   of_device_is_compatible
   of_find_compatible_node
+  of_find_property
   of_get_next_parent
   of_parse_phandle
   of_platform_populate
   of_root
+  __usecs_to_jiffies
 
 # required by vexpress-sysreg.ko
   bgpio_init
@@ -937,6 +869,7 @@
   platform_bus
   platform_device_add_data
   sockfd_lookup
+  sysfs_remove_link
   usb_add_hcd
   usb_create_hcd
   usb_create_shared_hcd
@@ -958,6 +891,8 @@
 # required by virt_wifi.ko
   cfg80211_connect_done
   cfg80211_disconnected
+  cfg80211_inform_bss_data
+  cfg80211_put_bss
   cfg80211_scan_done
   __dev_get_by_index
   dev_printk
@@ -970,9 +905,6 @@
   wiphy_register
   wiphy_unregister
 
-# required by virt_wifi_sim.ko
-  ieee80211_get_channel_khz
-
 # required by virtio-gpu.ko
   __devm_request_region
   dma_fence_match_context
@@ -1090,6 +1022,7 @@
   is_vmalloc_addr
   kmalloc_order_trace
   memdup_user
+  noop_llseek
   seq_puts
   sync_file_get_fence
   __traceiter_dma_fence_emit
@@ -1102,6 +1035,8 @@
   ww_mutex_unlock
 
 # required by virtio-rng.ko
+  hwrng_register
+  hwrng_unregister
   wait_for_completion_killable
 
 # required by virtio_blk.ko
@@ -1151,6 +1086,8 @@
   pipe_unlock
   __refrigerator
   __register_chrdev
+  seq_lseek
+  seq_read
   single_open
   single_release
   __splice_from_pipe
@@ -1159,6 +1096,7 @@
 
 # required by virtio_mmio.ko
   device_for_each_child
+  device_register
   devm_platform_ioremap_resource
   platform_device_register_full
 
@@ -1307,16 +1245,23 @@
   crypto_has_alg
   disk_end_io_acct
   disk_start_io_acct
+  down_read
   flush_dcache_page
   free_percpu
   fsync_bdev
+  idr_alloc
+  idr_destroy
   idr_find
   idr_for_each
+  idr_remove
+  __init_rwsem
   kstrtou16
+  kstrtoull
   memset64
   mutex_is_locked
   page_endio
   sysfs_streq
+  up_read
   vzalloc
 
 # required by zsmalloc.ko
@@ -1339,3 +1284,4 @@
   register_shrinker
   __SetPageMovable
   unregister_shrinker
+
diff --git a/build.config.common b/build.config.common
index c7c4b23590f5a..12e9622e57442 100644
--- a/build.config.common
+++ b/build.config.common
@@ -1,7 +1,7 @@
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.constants
 
 BRANCH=android13-5.10
-KMI_GENERATION=2
+KMI_GENERATION=3
 
 LLVM=1
 DEPMOD=depmod
-- 
GitLab


From a946ac5ff58d300fb5113ab42e6bfee16cdb1f37 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 6 Apr 2022 16:19:58 +0100
Subject: [PATCH 4683/4878] ANDROID: KVM: arm64: iommu: Fix upper bound of PT
 walk

The second argument of the kvm_pgtable_walker callback was
misinterpreted as the end of the current entry, where in fact it is
the end of the walked memory region. Fix this by computing the end of
the current entry from the start and the level.

This did not affect correctness, as the code iterates linarly over
the entire address space, but it did affect boot time.

Bug: 190463801
Bug: 218012133
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I6d189b87645f47cd215a783c1bc9e1f032ff8c62
---
 arch/arm64/kvm/hyp/nvhe/iommu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 0f30563b3d106..16570c01e88ab 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -174,12 +174,13 @@ static bool is_mmio_range(phys_addr_t base, size_t size)
 	return true;
 }
 
-static int __snapshot_host_stage2(u64 start, u64 end, u32 level,
+static int __snapshot_host_stage2(u64 start, u64 pa_max, u32 level,
 				  kvm_pte_t *ptep,
 				  enum kvm_pgtable_walk_flags flags,
 				  void * const arg)
 {
 	struct pkvm_iommu_driver * const drv = arg;
+	u64 end = start + kvm_granule_size(level);
 	enum kvm_pgtable_prot prot;
 	kvm_pte_t pte = *ptep;
 
-- 
GitLab


From 174ac5b7c56fe039fc04ab70073223dd1780e0de Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 6 Apr 2022 16:42:36 +0100
Subject: [PATCH 4684/4878] ANDROID: KVM: arm64: s2mpu: Initialize MPTs to
 PROT_RW

Change the permissions that MPTs are initialized with from PROT_NONE to
PROT_RW. No functional change intended as the generic IOMMU code
sets permissions for the entire address space later. This will allow to
optimize boot time by only unmapping pages not available to host.

Bug: 190463801
Bug: 218012133
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ic29ec690a84cde22a2ce8fe33e7127711c6f0f3e
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 01cd8a97fa159..508f5fd5ad666 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -466,7 +466,7 @@ static int s2mpu_init(void *data, size_t size)
 		host_mpt.fmpt[gb] = (struct fmpt){
 			.smpt = smpt,
 			.gran_1g = true,
-			.prot = MPT_PROT_NONE,
+			.prot = MPT_PROT_RW,
 		};
 	}
 
-- 
GitLab


From 4e56697b422df13df9f25074f6d7710acd784394 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 6 Apr 2022 16:46:03 +0100
Subject: [PATCH 4685/4878] ANDROID: KVM: arm64: iommu: Optimize
 snapshot_host_stage2

Currently the generic IOMMU code lets the driver initialize its PT and
then invokes callbacks to set the permissions across the entire PA
range. Optimize this by making it a requirement on the driver to
initialize its PTs to all memory owned by the host. snapshot_host_stage2
then only calls the driver's callback for memory regions not owned by
the host.

Bug: 190463801
Bug: 218012133
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I51ff38cb4f4e28e19903af942776b401504c363e
---
 arch/arm64/kvm/hyp/include/nvhe/iommu.h | 2 ++
 arch/arm64/kvm/hyp/nvhe/iommu.c         | 8 ++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/nvhe/iommu.h b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
index d794f705fb1a3..69bce1f017174 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/iommu.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/iommu.h
@@ -15,6 +15,8 @@ struct pkvm_iommu_ops {
 	 * Driver-specific arguments are passed in a buffer shared by the host.
 	 * The buffer memory has been pinned in EL2 but host retains R/W access.
 	 * Extra care must be taken when reading from it to avoid TOCTOU bugs.
+	 * If the driver maintains its own page tables, it is expected to
+	 * initialize them to all memory owned by the host.
 	 * Driver initialization lock held during callback.
 	 */
 	int (*init)(void *data, size_t size);
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu.c b/arch/arm64/kvm/hyp/nvhe/iommu.c
index 16570c01e88ab..3fe47e5420883 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu.c
@@ -181,16 +181,16 @@ static int __snapshot_host_stage2(u64 start, u64 pa_max, u32 level,
 {
 	struct pkvm_iommu_driver * const drv = arg;
 	u64 end = start + kvm_granule_size(level);
-	enum kvm_pgtable_prot prot;
 	kvm_pte_t pte = *ptep;
 
 	/*
 	 * Valid stage-2 entries are created lazily, invalid ones eagerly.
 	 * Note: In the future we may need to check if [start,end) is MMIO.
+	 * Note: Drivers initialize their PTs to all memory owned by the host,
+	 * so we only call the driver on regions where that is not the case.
 	 */
-	prot = (!pte || kvm_pte_valid(pte)) ? PKVM_HOST_MEM_PROT : 0;
-
-	drv->ops->host_stage2_idmap_prepare(start, end, prot);
+	if (pte && !kvm_pte_valid(pte))
+		drv->ops->host_stage2_idmap_prepare(start, end, /*prot*/ 0);
 	return 0;
 }
 
-- 
GitLab


From 7bfa608df514e15d7a7b5f0c47f7256cb4c742a4 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Thu, 24 Mar 2022 18:12:02 -0700
Subject: [PATCH 4686/4878] UPSTREAM: kasan: test: support async (again) and
 asymm modes for HW_TAGS

Async mode support has already been implemented in commit e80a76aa1a91
("kasan, arm64: tests supports for HW_TAGS async mode") but then got
accidentally broken in commit 99734b535d9b ("kasan: detect false-positives
in tests").

Restore the changes removed by the latter patch and adapt them for asymm
mode: add a sync_fault flag to kunit_kasan_expectation that only get set
if the MTE fault was synchronous, and reenable MTE on such faults in
tests.

Also rename kunit_kasan_expectation to kunit_kasan_status and move its
definition to mm/kasan/kasan.h from include/linux/kasan.h, as this
structure is only internally used by KASAN.  Also put the structure
definition under IS_ENABLED(CONFIG_KUNIT).

Link: https://lkml.kernel.org/r/133970562ccacc93ba19d754012c562351d4a8c8.1645033139.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit ed6d74446cbfb88c747d4b32477a9d46132694db)
Bug: 217222520
Change-Id: I8be7f20e72efe7ad81999dc75c848fb89664602c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h |  5 -----
 lib/test_kasan.c      | 39 ++++++++++++++++++++++-----------------
 mm/kasan/hw_tags.c    | 18 +++++++++---------
 mm/kasan/kasan.h      | 14 ++++++++++++--
 mm/kasan/report.c     | 17 +++++++++--------
 5 files changed, 52 insertions(+), 41 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 1f503288f222b..47775e893e6ba 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -17,11 +17,6 @@ struct task_struct;
 #include <linux/linkage.h>
 #include <asm/kasan.h>
 
-/* kasan_data struct is used in KUnit tests for KASAN expected failures */
-struct kunit_kasan_expectation {
-	bool report_found;
-};
-
 #endif
 
 typedef unsigned int __bitwise kasan_vmalloc_flags_t;
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 06414e1ee3be6..4de52eb5b93b6 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -37,7 +37,7 @@ void *kasan_ptr_result;
 int kasan_int_result;
 
 static struct kunit_resource resource;
-static struct kunit_kasan_expectation fail_data;
+static struct kunit_kasan_status test_status;
 static bool multishot;
 
 /*
@@ -54,58 +54,63 @@ static int kasan_test_init(struct kunit *test)
 	}
 
 	multishot = kasan_save_enable_multi_shot();
-	fail_data.report_found = false;
+	test_status.report_found = false;
+	test_status.sync_fault = false;
 	kunit_add_named_resource(test, NULL, NULL, &resource,
-					"kasan_data", &fail_data);
+					"kasan_status", &test_status);
 	return 0;
 }
 
 static void kasan_test_exit(struct kunit *test)
 {
 	kasan_restore_multi_shot(multishot);
-	KUNIT_EXPECT_FALSE(test, fail_data.report_found);
+	KUNIT_EXPECT_FALSE(test, test_status.report_found);
 }
 
 /**
  * KUNIT_EXPECT_KASAN_FAIL() - check that the executed expression produces a
  * KASAN report; causes a test failure otherwise. This relies on a KUnit
- * resource named "kasan_data". Do not use this name for KUnit resources
+ * resource named "kasan_status". Do not use this name for KUnit resources
  * outside of KASAN tests.
  *
- * For hardware tag-based KASAN in sync mode, when a tag fault happens, tag
+ * For hardware tag-based KASAN, when a synchronous tag fault happens, tag
  * checking is auto-disabled. When this happens, this test handler reenables
  * tag checking. As tag checking can be only disabled or enabled per CPU,
  * this handler disables migration (preemption).
  *
- * Since the compiler doesn't see that the expression can change the fail_data
+ * Since the compiler doesn't see that the expression can change the test_status
  * fields, it can reorder or optimize away the accesses to those fields.
  * Use READ/WRITE_ONCE() for the accesses and compiler barriers around the
  * expression to prevent that.
  *
- * In between KUNIT_EXPECT_KASAN_FAIL checks, fail_data.report_found is kept as
- * false. This allows detecting KASAN reports that happen outside of the checks
- * by asserting !fail_data.report_found at the start of KUNIT_EXPECT_KASAN_FAIL
- * and in kasan_test_exit.
+ * In between KUNIT_EXPECT_KASAN_FAIL checks, test_status.report_found is kept
+ * as false. This allows detecting KASAN reports that happen outside of the
+ * checks by asserting !test_status.report_found at the start of
+ * KUNIT_EXPECT_KASAN_FAIL and in kasan_test_exit.
  */
 #define KUNIT_EXPECT_KASAN_FAIL(test, expression) do {			\
 	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS) &&				\
 	    kasan_sync_fault_possible())				\
 		migrate_disable();					\
-	KUNIT_EXPECT_FALSE(test, READ_ONCE(fail_data.report_found));	\
+	KUNIT_EXPECT_FALSE(test, READ_ONCE(test_status.report_found));	\
 	barrier();							\
 	expression;							\
 	barrier();							\
-	if (!READ_ONCE(fail_data.report_found)) {			\
+	if (kasan_async_fault_possible())				\
+		kasan_force_async_fault();				\
+	if (!READ_ONCE(test_status.report_found)) {			\
 		KUNIT_FAIL(test, KUNIT_SUBTEST_INDENT "KASAN failure "	\
 				"expected in \"" #expression		\
 				 "\", but none occurred");		\
 	}								\
-	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS)) {				\
-		if (READ_ONCE(fail_data.report_found))			\
-			kasan_enable_tagging_sync();			\
+	if (IS_ENABLED(CONFIG_KASAN_HW_TAGS) &&				\
+	    kasan_sync_fault_possible()) {				\
+		if (READ_ONCE(test_status.report_found) &&		\
+		    READ_ONCE(test_status.sync_fault))			\
+			kasan_enable_tagging();				\
 		migrate_enable();					\
 	}								\
-	WRITE_ONCE(fail_data.report_found, false);			\
+	WRITE_ONCE(test_status.report_found, false);			\
 } while (0)
 
 #define KASAN_TEST_NEEDS_CONFIG_ON(test, config) do {			\
diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index fad1887e54c05..07a76c46daa5a 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -172,12 +172,7 @@ void kasan_init_hw_tags_cpu(void)
 	 * Enable async or asymm modes only when explicitly requested
 	 * through the command line.
 	 */
-	if (kasan_arg_mode == KASAN_ARG_MODE_ASYNC)
-		hw_enable_tagging_async();
-	else if (kasan_arg_mode == KASAN_ARG_MODE_ASYMM)
-		hw_enable_tagging_asymm();
-	else
-		hw_enable_tagging_sync();
+	kasan_enable_tagging();
 }
 
 /* kasan_init_hw_tags() is called once on boot CPU. */
@@ -343,11 +338,16 @@ void __kasan_poison_vmalloc(const void *start, unsigned long size)
 
 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
-void kasan_enable_tagging_sync(void)
+void kasan_enable_tagging(void)
 {
-	hw_enable_tagging_sync();
+	if (kasan_arg_mode == KASAN_ARG_MODE_ASYNC)
+		hw_enable_tagging_async();
+	else if (kasan_arg_mode == KASAN_ARG_MODE_ASYMM)
+		hw_enable_tagging_asymm();
+	else
+		hw_enable_tagging_sync();
 }
-EXPORT_SYMBOL_GPL(kasan_enable_tagging_sync);
+EXPORT_SYMBOL_GPL(kasan_enable_tagging);
 
 void kasan_force_async_fault(void)
 {
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 3fb9a1e847194..4791d080f3f31 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -7,6 +7,16 @@
 #include <linux/kfence.h>
 #include <linux/stackdepot.h>
 
+#if IS_ENABLED(CONFIG_KUNIT)
+
+/* Used in KUnit-compatible KASAN tests. */
+struct kunit_kasan_status {
+	bool report_found;
+	bool sync_fault;
+};
+
+#endif
+
 #ifdef CONFIG_KASAN_HW_TAGS
 
 #include <linux/static_key.h>
@@ -349,12 +359,12 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 
 #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
-void kasan_enable_tagging_sync(void);
+void kasan_enable_tagging(void);
 void kasan_force_async_fault(void);
 
 #else /* CONFIG_KASAN_HW_TAGS || CONFIG_KASAN_KUNIT_TEST */
 
-static inline void kasan_enable_tagging_sync(void) { }
+static inline void kasan_enable_tagging(void) { }
 static inline void kasan_force_async_fault(void) { }
 
 #endif /* CONFIG_KASAN_HW_TAGS || CONFIG_KASAN_KUNIT_TEST */
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 5f22ddfa2d7a1..98c186f9d9503 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -344,20 +344,21 @@ static bool report_enabled(void)
 }
 
 #if IS_ENABLED(CONFIG_KUNIT)
-static void kasan_update_kunit_status(struct kunit *cur_test)
+static void kasan_update_kunit_status(struct kunit *cur_test, bool sync)
 {
 	struct kunit_resource *resource;
-	struct kunit_kasan_expectation *kasan_data;
+	struct kunit_kasan_status *status;
 
-	resource = kunit_find_named_resource(cur_test, "kasan_data");
+	resource = kunit_find_named_resource(cur_test, "kasan_status");
 
 	if (!resource) {
 		kunit_set_failure(cur_test);
 		return;
 	}
 
-	kasan_data = (struct kunit_kasan_expectation *)resource->data;
-	WRITE_ONCE(kasan_data->report_found, true);
+	status = (struct kunit_kasan_status *)resource->data;
+	WRITE_ONCE(status->report_found, true);
+	WRITE_ONCE(status->sync_fault, sync);
 	kunit_put_resource(resource);
 }
 #endif /* IS_ENABLED(CONFIG_KUNIT) */
@@ -371,7 +372,7 @@ void kasan_report_invalid_free(void *object, unsigned long ip)
 
 #if IS_ENABLED(CONFIG_KUNIT)
 	if (current->kunit_test)
-		kasan_update_kunit_status(current->kunit_test);
+		kasan_update_kunit_status(current->kunit_test, true);
 #endif /* IS_ENABLED(CONFIG_KUNIT) */
 
 	start_report(&flags);
@@ -391,7 +392,7 @@ void kasan_report_async(void)
 
 #if IS_ENABLED(CONFIG_KUNIT)
 	if (current->kunit_test)
-		kasan_update_kunit_status(current->kunit_test);
+		kasan_update_kunit_status(current->kunit_test, false);
 #endif /* IS_ENABLED(CONFIG_KUNIT) */
 
 	start_report(&flags);
@@ -413,7 +414,7 @@ static void __kasan_report(unsigned long addr, size_t size, bool is_write,
 
 #if IS_ENABLED(CONFIG_KUNIT)
 	if (current->kunit_test)
-		kasan_update_kunit_status(current->kunit_test);
+		kasan_update_kunit_status(current->kunit_test, true);
 #endif /* IS_ENABLED(CONFIG_KUNIT) */
 
 	disable_trace_on_warning();
-- 
GitLab


From 94c6c10c394d201714b24748719be6150f910852 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Fri, 1 Apr 2022 11:28:45 -0700
Subject: [PATCH 4687/4878] BACKPORT: mm, kasan: fix __GFP_BITS_SHIFT
 definition breaking LOCKDEP

[Backport: resolve conflicts caused by CONFIG_CMA.]

KASAN changes that added new GFP flags mistakenly updated
__GFP_BITS_SHIFT as the total number of GFP bits instead of as a shift
used to define __GFP_BITS_MASK.

This broke LOCKDEP, as __GFP_BITS_MASK now gets the 25th bit enabled
instead of the 28th for __GFP_NOLOCKDEP.

Update __GFP_BITS_SHIFT to always count KASAN GFP bits.

In the future, we could handle all combinations of KASAN and LOCKDEP to
occupy as few bits as possible.  For now, we have enough GFP bits to be
inefficient in this quick fix.

Link: https://lkml.kernel.org/r/462ff52742a1fcc95a69778685737f723ee4dfb3.1648400273.git.andreyknvl@google.com
Fixes: 9353ffa6e9e9 ("kasan, page_alloc: allow skipping memory init for HW_TAGS")
Fixes: 53ae233c30a6 ("kasan, page_alloc: allow skipping unpoisoning for HW_TAGS")
Fixes: f49d9c5bb15c ("kasan, mm: only define ___GFP_SKIP_KASAN_POISON with HW_TAGS")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 78d104f8b401c81d140adad91e027d7d83b3315c)
Bug: 217222520
Change-Id: I82484635012c5773c6ef9164a9368d9e61157f87
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/gfp.h | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index def31f0f5a077..ae480a3d5307c 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -262,13 +262,9 @@ struct vm_area_struct;
 
 /* Room for N __GFP_FOO bits */
 #ifdef CONFIG_CMA
-#define __GFP_BITS_SHIFT (25 +						\
-			  3 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
-			  IS_ENABLED(CONFIG_LOCKDEP))
+#define __GFP_BITS_SHIFT (28 + IS_ENABLED(CONFIG_LOCKDEP))
 #else
-#define __GFP_BITS_SHIFT (24 +						\
-			  3 * IS_ENABLED(CONFIG_KASAN_HW_TAGS) +	\
-			  IS_ENABLED(CONFIG_LOCKDEP))
+#define __GFP_BITS_SHIFT (27 + IS_ENABLED(CONFIG_LOCKDEP))
 #endif
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
 
-- 
GitLab


From 8fe46774c6478181bb2948988c102ffd04b67489 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Thu, 7 Apr 2022 09:09:00 -0700
Subject: [PATCH 4688/4878] ANDROID: mm: page_pinner: remove dump_page_pinner

This patch removes dump_page_pinner since it was not useful(IOW,
the page_pinner buffer to keep the history is enough).

This patch also changes mismatched printf format specifier.

Bug: 218731671
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: I80c6f5ad656b3b0d27a50eabff4d1382559aa105
---
 include/linux/page_pinner.h | 10 --------
 mm/debug.c                  |  1 -
 mm/page_pinner.c            | 50 +------------------------------------
 3 files changed, 1 insertion(+), 60 deletions(-)

diff --git a/include/linux/page_pinner.h b/include/linux/page_pinner.h
index 10f7bdf4e3d4a..4d574d1ced59c 100644
--- a/include/linux/page_pinner.h
+++ b/include/linux/page_pinner.h
@@ -10,7 +10,6 @@ extern struct static_key_true failure_tracking;
 extern struct page_ext_operations page_pinner_ops;
 
 extern void __free_page_pinner(struct page *page, unsigned int order);
-extern void __dump_page_pinner(struct page *page);
 void __page_pinner_failure_detect(struct page *page);
 void __page_pinner_put_page(struct page *page);
 
@@ -20,12 +19,6 @@ static inline void free_page_pinner(struct page *page, unsigned int order)
 		__free_page_pinner(page, order);
 }
 
-static inline void dump_page_pinner(struct page *page)
-{
-	if (static_branch_unlikely(&page_pinner_inited))
-		__dump_page_pinner(page);
-}
-
 static inline void page_pinner_put_page(struct page *page)
 {
 	if (!static_branch_unlikely(&failure_tracking))
@@ -45,9 +38,6 @@ static inline void page_pinner_failure_detect(struct page *page)
 static inline void free_page_pinner(struct page *page, unsigned int order)
 {
 }
-static inline void dump_page_pinner(struct page *page)
-{
-}
 static inline void page_pinner_put_page(struct page *page)
 {
 }
diff --git a/mm/debug.c b/mm/debug.c
index aa44dea5276f5..061e2eb08981e 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -192,7 +192,6 @@ void dump_page(struct page *page, const char *reason)
 {
 	__dump_page(page, reason);
 	dump_page_owner(page);
-	dump_page_pinner(page);
 }
 EXPORT_SYMBOL(dump_page);
 
diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index 9021a37f305a9..dec309e7bd00d 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -194,7 +194,7 @@ print_page_pinner(char __user *buf, size_t count, struct captured_pinner *record
 		return -ENOMEM;
 
 	if (record->state == PP_PUT) {
-		ret = snprintf(kbuf, count, "At least, pinned for %lld us\n",
+		ret = snprintf(kbuf, count, "At least, pinned for %llu us\n",
 			       record->elapsed);
 	} else {
 		u64 ts_usec = record->ts_usec;
@@ -243,54 +243,6 @@ err:
 	return -ENOMEM;
 }
 
-void __dump_page_pinner(struct page *page)
-{
-	struct page_ext *page_ext = lookup_page_ext(page);
-	struct page_pinner *page_pinner;
-	depot_stack_handle_t handle;
-	unsigned long *entries;
-	unsigned int nr_entries;
-	int pageblock_mt;
-	unsigned long pfn;
-	int count;
-	unsigned long rem_usec;
-	u64 ts_usec;
-
-	if (unlikely(!page_ext)) {
-		pr_alert("There is not page extension available.\n");
-		return;
-	}
-
-	page_pinner = get_page_pinner(page_ext);
-
-	count = atomic_read(&page_pinner->count);
-	if (!count) {
-		pr_alert("page_pinner info is not present (never set?)\n");
-		return;
-	}
-
-	pfn = page_to_pfn(page);
-	ts_usec = page_pinner->ts_usec;
-	rem_usec = do_div(ts_usec, 1000000);
-	pr_alert("page last pinned %5lu.%06lu] count %d\n",
-		 ts_usec, rem_usec, count);
-
-	pageblock_mt = get_pageblock_migratetype(page);
-	pr_alert("PFN %lu Block %lu type %s Flags %#lx(%pGp)\n",
-			pfn,
-			pfn >> pageblock_order,
-			migratetype_names[pageblock_mt],
-			page->flags, &page->flags);
-
-	handle = READ_ONCE(page_pinner->handle);
-	if (!handle) {
-		pr_alert("page_pinner allocation stack trace missing\n");
-	} else {
-		nr_entries = stack_depot_fetch(handle, &entries);
-		stack_trace_print(entries, nr_entries, 0);
-	}
-}
-
 void __page_pinner_failure_detect(struct page *page)
 {
 	struct page_ext *page_ext = lookup_page_ext(page);
-- 
GitLab


From 74ff6e66d2fa9ca081568597241d2b4db218b22a Mon Sep 17 00:00:00 2001
From: Quentin Perret <qperret@google.com>
Date: Thu, 7 Apr 2022 15:26:30 +0000
Subject: [PATCH 4689/4878] ANDROID: KVM: arm64: Fix ToCToU issue when
 refilling the hyp memcache

Xiling reports that the hypervisor dereferences the host memcache struct
twice when refilling its own memcache. This allows the host to change its
memcache head after it has been admitted and before it is consumed,
leading to an arbitrary write in hypervisor memory.

Fix this by copying the host memcache on the stack before starting to
refill hence guaranteeing its stability.

Bug: 228435321
Reported-by: Xiling Gong <xiling@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Ib7c5db203e4a4a7f27eb9f0c0083f4b5c726b4d9
---
 arch/arm64/kvm/hyp/nvhe/mm.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/mm.c b/arch/arm64/kvm/hyp/nvhe/mm.c
index 6239fea7496b9..4e86a2123c054 100644
--- a/arch/arm64/kvm/hyp/nvhe/mm.c
+++ b/arch/arm64/kvm/hyp/nvhe/mm.c
@@ -331,6 +331,12 @@ static void *admit_host_page(void *arg)
 int refill_memcache(struct kvm_hyp_memcache *mc, unsigned long min_pages,
 		    struct kvm_hyp_memcache *host_mc)
 {
-	return __topup_hyp_memcache(mc, min_pages, admit_host_page,
-				    hyp_virt_to_phys, host_mc);
+	struct kvm_hyp_memcache tmp = *host_mc;
+	int ret;
+
+	ret =  __topup_hyp_memcache(mc, min_pages, admit_host_page,
+				    hyp_virt_to_phys, &tmp);
+	*host_mc = tmp;
+
+	return ret;
 }
-- 
GitLab


From e5765b86ce52dac1a1bc81f416deb843a8ff3056 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@google.com>
Date: Thu, 7 Apr 2022 19:58:31 +0200
Subject: [PATCH 4690/4878] ANDROID: GKI: set more vfs-only exports into their
 own namespace

There are more vfs-only symbols that OEMs want to use, so place them in
the proper vfs-only namespace.

Bug: 157965270
Bug: 210074446
Bug: 227656251
Cc: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I99b9facc8da45fb329f6627d204180d1f89bcf97
---
 fs/crypto/Makefile  | 2 ++
 fs/fs_types.c       | 2 +-
 fs/fscache/Makefile | 2 ++
 fs/jbd2/Makefile    | 2 ++
 fs/verity/Makefile  | 2 ++
 5 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/crypto/Makefile b/fs/crypto/Makefile
index 652c7180ec6de..d39077502e062 100644
--- a/fs/crypto/Makefile
+++ b/fs/crypto/Makefile
@@ -1,6 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_FS_ENCRYPTION)	+= fscrypto.o
 
+ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=ANDROID_GKI_VFS_EXPORT_ONLY
+
 fscrypto-y := crypto.o \
 	      fname.o \
 	      hkdf.o \
diff --git a/fs/fs_types.c b/fs/fs_types.c
index 78365e5dc08ca..a11a1d8c7811f 100644
--- a/fs/fs_types.c
+++ b/fs/fs_types.c
@@ -41,7 +41,7 @@ unsigned char fs_ftype_to_dtype(unsigned int filetype)
 
 	return fs_dtype_by_ftype[filetype];
 }
-EXPORT_SYMBOL_GPL(fs_ftype_to_dtype);
+EXPORT_SYMBOL_NS_GPL(fs_ftype_to_dtype, ANDROID_GKI_VFS_EXPORT_ONLY);
 
 /*
  * dirent file type to fs on-disk file type conversion
diff --git a/fs/fscache/Makefile b/fs/fscache/Makefile
index 79e08e05ef848..9121382cf16da 100644
--- a/fs/fscache/Makefile
+++ b/fs/fscache/Makefile
@@ -3,6 +3,8 @@
 # Makefile for general filesystem caching code
 #
 
+ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=ANDROID_GKI_VFS_EXPORT_ONLY
+
 fscache-y := \
 	cache.o \
 	cookie.o \
diff --git a/fs/jbd2/Makefile b/fs/jbd2/Makefile
index 126b4da6c7de8..b64f93331643b 100644
--- a/fs/jbd2/Makefile
+++ b/fs/jbd2/Makefile
@@ -3,6 +3,8 @@
 # Makefile for the linux journaling routines.
 #
 
+ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=ANDROID_GKI_VFS_EXPORT_ONLY
+
 obj-$(CONFIG_JBD2) += jbd2.o
 
 jbd2-objs := transaction.o commit.o recovery.o checkpoint.o revoke.o journal.o
diff --git a/fs/verity/Makefile b/fs/verity/Makefile
index 435559a4fa9ea..4b8323450f90a 100644
--- a/fs/verity/Makefile
+++ b/fs/verity/Makefile
@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 
+ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=ANDROID_GKI_VFS_EXPORT_ONLY
+
 obj-$(CONFIG_FS_VERITY) += enable.o \
 			   hash_algs.o \
 			   init.o \
-- 
GitLab


From bba21782c8f5658be441393b6a06788e1f7d723f Mon Sep 17 00:00:00 2001
From: Will McVicker <willmcvicker@google.com>
Date: Mon, 11 Apr 2022 09:32:09 -0700
Subject: [PATCH 4691/4878] ANDROID: Update the ABI symbol list and xml

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function void __drm_printfn_debug(drm_printer*, va_format*)'

Bug: 202781851
Change-Id: I8c0270ac538462cc64246195e20f5c653f5894cc
Signed-off-by: Midas Chien <midaschieh@google.com>
Signed-off-by: Will McVicker <willmcvicker@google.com>
---
 android/abi_gki_aarch64.xml     | 587 ++++++++++++++------------------
 android/abi_gki_aarch64_generic |   1 +
 2 files changed, 255 insertions(+), 333 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 614f51c17f78e..67c25ba597ff3 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -76,6 +76,7 @@
       <elf-symbol name='__drm_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec12af74'/>
       <elf-symbol name='__drm_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb11ac7a7'/>
       <elf-symbol name='__drm_printfn_coredump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea00fe81'/>
+      <elf-symbol name='__drm_printfn_debug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf824c7db'/>
       <elf-symbol name='__drm_printfn_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe317082a'/>
       <elf-symbol name='__drm_printfn_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb953b1'/>
       <elf-symbol name='__drm_puts_coredump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b0e5e9c'/>
@@ -3905,7 +3906,7 @@
           <var-decl name='enabled' type-id='49178f86' visibility='default' filepath='include/linux/jump_label.h' line='88' column='1'/>
         </data-member>
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+      <union-decl name='__anonymous_union__' size-in-bits='16' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='41' column='1' id='ac5ab5d3'>
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           <var-decl name='ycbcr_enc' type-id='d315442e' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='43' column='1'/>
         </data-member>
@@ -67491,7 +67449,7 @@
           <var-decl name='hsv_enc' type-id='d315442e' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='45' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='508' column='1' id='ac5ab5d3'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='508' column='1' id='ac5ab5d4'>
         <data-member access='public'>
           <var-decl name='ycbcr_enc' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='510' column='1'/>
         </data-member>
@@ -67499,7 +67457,7 @@
           <var-decl name='hsv_enc' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='512' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='833' column='1' id='ac5ab5d4'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='833' column='1' id='ac5ab5d5'>
         <data-member access='public'>
           <var-decl name='discrete' type-id='10186cf6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='834' column='1'/>
         </data-member>
@@ -67507,7 +67465,7 @@
           <var-decl name='stepwise' type-id='5a62dd2b' visibility='default' filepath='include/uapi/linux/videodev2.h' line='835' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='863' column='1' id='ac5ab5d5'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='863' column='1' id='ac5ab5d6'>
         <data-member access='public'>
           <var-decl name='discrete' type-id='5f37256e' visibility='default' filepath='include/uapi/linux/videodev2.h' line='864' column='1'/>
         </data-member>
@@ -67515,7 +67473,7 @@
           <var-decl name='stepwise' type-id='99cd0646' visibility='default' filepath='include/uapi/linux/videodev2.h' line='865' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='992' column='1' id='ac5ab5d6'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='992' column='1' id='ac5ab5d7'>
         <data-member access='public'>
           <var-decl name='mem_offset' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='993' column='1'/>
         </data-member>
@@ -67526,7 +67484,7 @@
           <var-decl name='fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='995' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1049' column='1' id='ac5ab5d7'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1049' column='1' id='ac5ab5d8'>
         <data-member access='public'>
           <var-decl name='offset' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1050' column='1'/>
         </data-member>
@@ -67540,7 +67498,7 @@
           <var-decl name='fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1053' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1057' column='1' id='ac5ab5d8'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1057' column='1' id='ac5ab5d9'>
         <data-member access='public'>
           <var-decl name='request_fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1058' column='1'/>
         </data-member>
@@ -67548,7 +67506,7 @@
           <var-decl name='reserved' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1059' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1568' column='1' id='ac5ab5d9'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1568' column='1' id='ac5ab5da'>
         <data-member access='public'>
           <var-decl name='bt' type-id='ecc13ba0' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1569' column='1'/>
         </data-member>
@@ -67556,7 +67514,7 @@
           <var-decl name='reserved' type-id='734a963c' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1570' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1634' column='1' id='ac5ab5da'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1634' column='1' id='ac5ab5db'>
         <data-member access='public'>
           <var-decl name='bt' type-id='e5bfe593' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1635' column='1'/>
         </data-member>
@@ -67564,7 +67522,7 @@
           <var-decl name='raw_data' type-id='734a963c' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1636' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1729' column='1' id='ac5ab5db'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1729' column='1' id='ac5ab5dc'>
         <data-member access='public'>
           <var-decl name='value' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1730' column='1'/>
         </data-member>
@@ -67590,12 +67548,12 @@
           <var-decl name='ptr' type-id='eaa32e2f' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1737' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1742' column='1' id='ac5ab5dc'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1742' column='1' id='ac5ab5dd'>
         <data-member access='public'>
           <var-decl name='which' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1746' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1829' column='1' id='ac5ab5dd'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1829' column='1' id='ac5ab5de'>
         <data-member access='public'>
           <var-decl name='name' type-id='7e67d89d' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1830' column='1'/>
         </data-member>
@@ -67603,12 +67561,12 @@
           <var-decl name='value' type-id='49659421' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1831' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2036' column='1' id='ac5ab5de'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2036' column='1' id='ac5ab5df'>
         <data-member access='public'>
           <var-decl name='raw' type-id='e7f43fa1' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2039' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2072' column='1' id='ac5ab5df'>
+      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2072' column='1' id='ac5ab5e0'>
         <data-member access='public'>
           <var-decl name='stop' type-id='e7f43fa2' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2075' column='1'/>
         </data-member>
@@ -67619,7 +67577,7 @@
           <var-decl name='raw' type-id='e7f43fa4' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2089' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='8' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2261' column='1' id='ac5ab5e0'>
+      <union-decl name='__anonymous_union__' size-in-bits='8' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2261' column='1' id='ac5ab5e1'>
         <data-member access='public'>
           <var-decl name='ycbcr_enc' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2262' column='1'/>
         </data-member>
@@ -67627,7 +67585,7 @@
           <var-decl name='hsv_enc' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2263' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2303' column='1' id='ac5ab5e1'>
+      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2303' column='1' id='ac5ab5e2'>
         <data-member access='public'>
           <var-decl name='pix' type-id='e8f6102b' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2304' column='1'/>
         </data-member>
@@ -67653,7 +67611,7 @@
           <var-decl name='raw_data' type-id='0530f1a6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2311' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2319' column='1' id='ac5ab5e2'>
+      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2319' column='1' id='ac5ab5e3'>
         <data-member access='public'>
           <var-decl name='capture' type-id='f88a5c22' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2320' column='1'/>
         </data-member>
@@ -67664,7 +67622,7 @@
           <var-decl name='raw_data' type-id='0530f1a6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2322' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='283' column='1' id='ac5ab5e3'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='283' column='1' id='ac5ab5e4'>
         <data-member access='public'>
           <var-decl name='step' type-id='91ce1af9' visibility='default' filepath='include/media/v4l2-ctrls.h' line='284' column='1'/>
         </data-member>
@@ -67672,7 +67630,7 @@
           <var-decl name='menu_skip_mask' type-id='91ce1af9' visibility='default' filepath='include/media/v4l2-ctrls.h' line='285' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='287' column='1' id='ac5ab5e4'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='287' column='1' id='ac5ab5e5'>
         <data-member access='public'>
           <var-decl name='qmenu' type-id='13956559' visibility='default' filepath='include/media/v4l2-ctrls.h' line='288' column='1'/>
         </data-member>
@@ -67680,7 +67638,7 @@
           <var-decl name='qmenu_int' type-id='43ae54cf' visibility='default' filepath='include/media/v4l2-ctrls.h' line='289' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/videobuf2-core.h' line='181' column='1' id='ac5ab5e5'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/videobuf2-core.h' line='181' column='1' id='ac5ab5e6'>
         <data-member access='public'>
           <var-decl name='offset' type-id='f0981eeb' visibility='default' filepath='include/media/videobuf2-core.h' line='182' column='1'/>
         </data-member>
@@ -67691,7 +67649,7 @@
           <var-decl name='fd' type-id='95e97e5e' visibility='default' filepath='include/media/videobuf2-core.h' line='184' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='791' column='1' id='ac5ab5e6'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='791' column='1' id='ac5ab5e7'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f43fa6' visibility='default' filepath='include/linux/cgroup-defs.h' line='793' column='1'/>
         </data-member>
@@ -67699,7 +67657,7 @@
           <var-decl name='val' type-id='91ce1af9' visibility='default' filepath='include/linux/cgroup-defs.h' line='811' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='359' column='1' id='ac5ab5e7'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='359' column='1' id='ac5ab5e8'>
         <data-member access='public'>
           <var-decl name='buf' type-id='26a90f95' visibility='default' filepath='include/linux/fs.h' line='360' column='1'/>
         </data-member>
@@ -67707,7 +67665,7 @@
           <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/fs.h' line='361' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/socket.h' line='60' column='1' id='ac5ab5e8'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/socket.h' line='60' column='1' id='ac5ab5e9'>
         <data-member access='public'>
           <var-decl name='msg_control' type-id='eaa32e2f' visibility='default' filepath='include/linux/socket.h' line='61' column='1'/>
         </data-member>
@@ -67715,7 +67673,7 @@
           <var-decl name='msg_control_user' type-id='eaa32e2f' visibility='default' filepath='include/linux/socket.h' line='62' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/sockptr.h' line='15' column='1' id='ac5ab5e9'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/sockptr.h' line='15' column='1' id='ac5ab5ea'>
         <data-member access='public'>
           <var-decl name='kernel' type-id='eaa32e2f' visibility='default' filepath='include/linux/sockptr.h' line='16' column='1'/>
         </data-member>
@@ -67723,7 +67681,7 @@
           <var-decl name='user' type-id='eaa32e2f' visibility='default' filepath='include/linux/sockptr.h' line='17' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='704' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='175' column='1' id='ac5ab5ea'>
+      <union-decl name='__anonymous_union__' size-in-bits='704' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='175' column='1' id='ac5ab5eb'>
         <data-member access='public'>
           <var-decl name='__fl_common' type-id='184ee240' visibility='default' filepath='include/net/flow.h' line='176' column='1'/>
         </data-member>
@@ -67737,7 +67695,7 @@
           <var-decl name='dn' type-id='83eba552' visibility='default' filepath='include/net/flow.h' line='179' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='168' column='1' id='ac5ab5eb'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='168' column='1' id='ac5ab5ec'>
         <data-member access='public'>
           <var-decl name='skc_addrpair' type-id='d17a6eed' visibility='default' filepath='include/net/sock.h' line='169' column='1'/>
         </data-member>
@@ -67745,7 +67703,7 @@
           <var-decl name='' type-id='e7f43fab' visibility='default' filepath='include/net/sock.h' line='170' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='175' column='1' id='ac5ab5ec'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='175' column='1' id='ac5ab5ed'>
         <data-member access='public'>
           <var-decl name='skc_hash' type-id='f0981eeb' visibility='default' filepath='include/net/sock.h' line='176' column='1'/>
         </data-member>
@@ -67753,7 +67711,7 @@
           <var-decl name='skc_u16hashes' type-id='810b4a17' visibility='default' filepath='include/net/sock.h' line='177' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='180' column='1' id='ac5ab5ed'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='180' column='1' id='ac5ab5ee'>
         <data-member access='public'>
           <var-decl name='skc_portpair' type-id='e7c2a649' visibility='default' filepath='include/net/sock.h' line='181' column='1'/>
         </data-member>
@@ -67761,7 +67719,7 @@
           <var-decl name='' type-id='e7f43fac' visibility='default' filepath='include/net/sock.h' line='182' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='195' column='1' id='ac5ab5ee'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='195' column='1' id='ac5ab5ef'>
         <data-member access='public'>
           <var-decl name='skc_bind_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='196' column='1'/>
         </data-member>
@@ -67769,7 +67727,7 @@
           <var-decl name='skc_portaddr_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='197' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='214' column='1' id='ac5ab5ef'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='214' column='1' id='ac5ab5f0'>
         <data-member access='public'>
           <var-decl name='skc_flags' type-id='7359adad' visibility='default' filepath='include/net/sock.h' line='215' column='1'/>
         </data-member>
@@ -67780,7 +67738,7 @@
           <var-decl name='skc_tw_dr' type-id='b7ab21fc' visibility='default' filepath='include/net/sock.h' line='217' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='226' column='1' id='ac5ab5f0'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='226' column='1' id='ac5ab5f1'>
         <data-member access='public'>
           <var-decl name='skc_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='227' column='1'/>
         </data-member>
@@ -67788,7 +67746,7 @@
           <var-decl name='skc_nulls_node' type-id='5bd248e7' visibility='default' filepath='include/net/sock.h' line='228' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='234' column='1' id='ac5ab5f1'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='234' column='1' id='ac5ab5f2'>
         <data-member access='public'>
           <var-decl name='skc_incoming_cpu' type-id='95e97e5e' visibility='default' filepath='include/net/sock.h' line='235' column='1'/>
         </data-member>
@@ -67799,7 +67757,7 @@
           <var-decl name='skc_tw_rcv_nxt' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='237' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='243' column='1' id='ac5ab5f2'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='243' column='1' id='ac5ab5f3'>
         <data-member access='public'>
           <var-decl name='skc_rxhash' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='244' column='1'/>
         </data-member>
@@ -67810,7 +67768,7 @@
           <var-decl name='skc_tw_snd_nxt' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='246' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='420' column='1' id='ac5ab5f3'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='420' column='1' id='ac5ab5f4'>
         <data-member access='public'>
           <var-decl name='sk_wq' type-id='99f34ac1' visibility='default' filepath='include/net/sock.h' line='421' column='1'/>
         </data-member>
@@ -67818,7 +67776,7 @@
           <var-decl name='sk_wq_raw' type-id='99f34ac1' visibility='default' filepath='include/net/sock.h' line='423' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='438' column='1' id='ac5ab5f4'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='438' column='1' id='ac5ab5f5'>
         <data-member access='public'>
           <var-decl name='sk_send_head' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='439' column='1'/>
         </data-member>
@@ -67826,7 +67784,7 @@
           <var-decl name='tcp_rtx_queue' type-id='dec44472' visibility='default' filepath='include/net/sock.h' line='440' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='1235' column='1' id='ac5ab5f5'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='1235' column='1' id='ac5ab5f6'>
         <data-member access='public'>
           <var-decl name='hashinfo' type-id='d7a1e3c2' visibility='default' filepath='include/net/sock.h' line='1236' column='1'/>
         </data-member>
@@ -67840,7 +67798,7 @@
           <var-decl name='smc_hash' type-id='aa8162a3' visibility='default' filepath='include/net/sock.h' line='1239' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='151' column='1' id='ac5ab5f6'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='151' column='1' id='ac5ab5f7'>
         <data-member access='public'>
           <var-decl name='gclist' type-id='03a4a074' visibility='default' filepath='include/net/xfrm.h' line='152' column='1'/>
         </data-member>
@@ -67848,7 +67806,7 @@
           <var-decl name='bydst' type-id='03a4a074' visibility='default' filepath='include/net/xfrm.h' line='153' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='108' column='1' id='ac5ab5f7'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='108' column='1' id='ac5ab5f8'>
         <data-member access='public'>
           <var-decl name='d_lru' type-id='72f469ec' visibility='default' filepath='include/linux/dcache.h' line='109' column='1'/>
         </data-member>
@@ -67856,7 +67814,7 @@
           <var-decl name='d_wait' type-id='03d48e96' visibility='default' filepath='include/linux/dcache.h' line='110' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='117' column='1' id='ac5ab5f8'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='117' column='1' id='ac5ab5f9'>
         <data-member access='public'>
           <var-decl name='d_alias' type-id='03a4a074' visibility='default' filepath='include/linux/dcache.h' line='118' column='1'/>
         </data-member>
@@ -67867,7 +67825,7 @@
           <var-decl name='d_rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/dcache.h' line='120' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/pinctrl/machine.h' line='72' column='1' id='ac5ab5f9'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/pinctrl/machine.h' line='72' column='1' id='ac5ab5fa'>
         <data-member access='public'>
           <var-decl name='mux' type-id='ad4dd73d' visibility='default' filepath='include/linux/pinctrl/machine.h' line='73' column='1'/>
         </data-member>
@@ -67875,7 +67833,7 @@
           <var-decl name='configs' type-id='687781fc' visibility='default' filepath='include/linux/pinctrl/machine.h' line='74' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='533' column='1' id='ac5ab5fa'>
+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='533' column='1' id='ac5ab5fb'>
         <data-member access='public'>
           <var-decl name='sr' type-id='18119fa5' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='534' column='1'/>
         </data-member>
@@ -67886,7 +67844,7 @@
           <var-decl name='qr' type-id='5fc79e81' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='536' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1' id='ac5ab5fb'>
+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1' id='ac5ab5fc'>
         <data-member access='public'>
           <var-decl name='sc' type-id='498490b9' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='76' column='1'/>
         </data-member>
@@ -67897,7 +67855,7 @@
           <var-decl name='uc' type-id='5fc79e81' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='78' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='124' column='1' id='ac5ab5fc'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='124' column='1' id='ac5ab5fd'>
         <data-member access='public'>
           <var-decl name='in' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='125' column='1'/>
         </data-member>
@@ -67905,7 +67863,7 @@
           <var-decl name='out' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='126' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fd'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fe'>
         <data-member access='public'>
           <var-decl name='kfifo' type-id='bbbc6c1e' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
         </data-member>
@@ -67925,7 +67883,7 @@
           <var-decl name='ptr_const' type-id='eaa32e2f' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1' id='ac5ab5fe'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1' id='ac5ab5ff'>
         <data-member access='public'>
           <var-decl name='vendor_ops' type-id='1e9ca7e3' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
         </data-member>
@@ -67933,11 +67891,11 @@
           <var-decl name='' type-id='e7f43fb9' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='ac5ab5ff' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
+          <var-decl name='' type-id='ac5ab600' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab5ff'/>
-      <union-decl name='__anonymous_union__' size-in-bits='224' is-anonymous='yes' visibility='default' filepath='include/linux/usb/pd.h' line='197' column='1' id='ac5ab600'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab600'/>
+      <union-decl name='__anonymous_union__' size-in-bits='224' is-anonymous='yes' visibility='default' filepath='include/linux/usb/pd.h' line='197' column='1' id='ac5ab601'>
         <data-member access='public'>
           <var-decl name='payload' type-id='e369592a' visibility='default' filepath='include/linux/usb/pd.h' line='198' column='1'/>
         </data-member>
@@ -67945,7 +67903,7 @@
           <var-decl name='ext_msg' type-id='9d90420f' visibility='default' filepath='include/linux/usb/pd.h' line='199' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fb.h' line='480' column='1' id='ac5ab601'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fb.h' line='480' column='1' id='ac5ab602'>
         <data-member access='public'>
           <var-decl name='screen_base' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='481' column='1'/>
         </data-member>
@@ -67953,7 +67911,7 @@
           <var-decl name='screen_buffer' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='482' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab602'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab603'>
         <data-member access='public'>
           <var-decl name='obj' type-id='c66f5ec5' visibility='default' filepath='include/linux/fsnotify_backend.h' line='362' column='1'/>
         </data-member>
@@ -67961,7 +67919,7 @@
           <var-decl name='destroy_next' type-id='994d9d61' visibility='default' filepath='include/linux/fsnotify_backend.h' line='364' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab603'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab604'>
         <data-member access='public'>
           <var-decl name='proc_ops' type-id='33d70f0f' visibility='default' filepath='fs/proc/internal.h' line='43' column='1'/>
         </data-member>
@@ -67969,7 +67927,7 @@
           <var-decl name='proc_dir_ops' type-id='61758ee5' visibility='default' filepath='fs/proc/internal.h' line='44' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab604'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab605'>
         <data-member access='public'>
           <var-decl name='seq_ops' type-id='943a1b48' visibility='default' filepath='fs/proc/internal.h' line='48' column='1'/>
         </data-member>
@@ -67977,7 +67935,7 @@
           <var-decl name='single_show' type-id='0131eb61' visibility='default' filepath='fs/proc/internal.h' line='49' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/splice.h' line='36' column='1' id='ac5ab605'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/splice.h' line='36' column='1' id='ac5ab606'>
         <data-member access='public'>
           <var-decl name='userptr' type-id='eaa32e2f' visibility='default' filepath='include/linux/splice.h' line='37' column='1'/>
         </data-member>
@@ -67988,7 +67946,7 @@
           <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/splice.h' line='39' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='14' column='1' id='ac5ab606'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='14' column='1' id='ac5ab607'>
         <data-member access='public'>
           <var-decl name='cnts' type-id='49178f86' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='15' column='1'/>
         </data-member>
@@ -67996,7 +67954,7 @@
           <var-decl name='' type-id='e7f43fbc' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='16' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/cred.h' line='149' column='1' id='ac5ab607'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/cred.h' line='149' column='1' id='ac5ab608'>
         <data-member access='public'>
           <var-decl name='non_rcu' type-id='95e97e5e' visibility='default' filepath='include/linux/cred.h' line='150' column='1'/>
         </data-member>
@@ -68004,7 +67962,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/cred.h' line='151' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='49' column='1' id='ac5ab608'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='49' column='1' id='ac5ab609'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f43fbd' visibility='default' filepath='include/linux/dcache.h' line='50' column='1'/>
         </data-member>
@@ -68012,7 +67970,7 @@
           <var-decl name='hash_len' type-id='91ce1af9' visibility='default' filepath='include/linux/dcache.h' line='53' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='334' column='1' id='ac5ab609'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='334' column='1' id='ac5ab60a'>
         <data-member access='public'>
           <var-decl name='ki_cookie' type-id='f0981eeb' visibility='default' filepath='include/linux/fs.h' line='335' column='1'/>
         </data-member>
@@ -68020,7 +67978,7 @@
           <var-decl name='ki_waitq' type-id='4be56288' visibility='default' filepath='include/linux/fs.h' line='336' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='932' column='1' id='ac5ab60a'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='932' column='1' id='ac5ab60b'>
         <data-member access='public'>
           <var-decl name='fu_llist' type-id='c5ccfee8' visibility='default' filepath='include/linux/fs.h' line='933' column='1'/>
         </data-member>
@@ -68028,7 +67986,7 @@
           <var-decl name='fu_rcuhead' type-id='e3d8ce29' visibility='default' filepath='include/linux/fs.h' line='934' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='1114' column='1' id='ac5ab60b'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='1114' column='1' id='ac5ab60c'>
         <data-member access='public'>
           <var-decl name='nfs_fl' type-id='17bacae5' visibility='default' filepath='include/linux/fs.h' line='1115' column='1'/>
         </data-member>
@@ -68039,7 +67997,7 @@
           <var-decl name='afs' type-id='e7f43fbe' visibility='default' filepath='include/linux/fs.h' line='1121' column='1'/>
         </data-member>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/iocontext.h' line='83' column='1' id='ac5ab60d'>
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@@ -68047,7 +68005,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/iocontext.h' line='87' column='1' id='ac5ab60e'>
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@@ -68055,7 +68013,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/jump_label.h' line='102' column='1' id='ac5ab60f'>
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@@ -68066,7 +68024,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/kernfs.h' line='143' column='1' id='ac5ab610'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='111' column='1' id='ac5ab611'>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='192' column='1' id='ac5ab612'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='202' column='1' id='ac5ab613'>
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='239' column='1' id='ac5ab614'>
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@@ -68109,7 +68067,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/key.h' line='254' column='1' id='ac5ab615'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/lockref.h' line='26' column='1' id='ac5ab616'>
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@@ -68125,7 +68083,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/memremap.h' line='120' column='1' id='ac5ab617'>
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@@ -68133,7 +68091,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='81' column='1' id='ac5ab618'>
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@@ -68159,7 +68117,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='183' column='1' id='ac5ab619'>
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@@ -68173,7 +68131,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='206' column='1' id='ac5ab61a'>
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@@ -68181,7 +68139,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='108' column='1' id='ac5ab61b'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='124' column='1' id='ac5ab61c'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='153' column='1' id='ac5ab61d'>
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@@ -68208,7 +68166,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/linux/mm_types.h' line='354' column='1' id='ac5ab61e'>
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@@ -68216,7 +68174,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/moduleparam.h' line='76' column='1' id='ac5ab61f'>
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@@ -68227,7 +68185,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/percpu-rwsem.h' line='20' column='1' id='ac5ab620'>
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@@ -68235,7 +68193,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/linux/quota.h' line='69' column='1' id='ac5ab621'>
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@@ -68246,7 +68204,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/skbuff.h' line='724' column='1' id='ac5ab622'>
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@@ -68254,7 +68212,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/sysctl.h' line='132' column='1' id='ac5ab623'>
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@@ -68262,7 +68220,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='38' column='1' id='ac5ab624'>
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@@ -68276,7 +68234,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='44' column='1' id='ac5ab625'>
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@@ -68284,7 +68242,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/uprobes.h' line='64' column='1' id='ac5ab626'>
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+      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/linux/user_namespace.h' line='26' column='1' id='ac5ab627'>
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@@ -68300,7 +68258,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='352' is-anonymous='yes' visibility='default' filepath='include/net/inet_frag.h' line='79' column='1' id='ac5ab628'>
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@@ -68308,7 +68266,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/in6.h' line='34' column='1' id='ac5ab629'>
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@@ -68319,7 +68277,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='384' is-anonymous='yes' visibility='default' filepath='include/linux/backing-dev-defs.h' line='159' column='1' id='ac5ab62a'>
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@@ -68327,7 +68285,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip6_fib.h' line='178' column='1' id='ac5ab62b'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/ip.h' line='126' column='1' id='ac5ab62c'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='2153' column='1' id='ac5ab62d'>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/memcontrol.h' line='199' column='1' id='ac5ab62f'>
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@@ -68885,28 +68835,28 @@
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@@ -69186,11 +69136,7 @@
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@@ -71898,7 +71844,7 @@
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-          <var-decl name='f_u' type-id='ac5ab60a' visibility='default' filepath='include/linux/fs.h' line='935' column='1'/>
+          <var-decl name='f_u' type-id='ac5ab60b' visibility='default' filepath='include/linux/fs.h' line='935' column='1'/>
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@@ -72781,7 +72727,7 @@
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-          <var-decl name='key' type-id='ac5ab627' visibility='default' filepath='include/net/inet_frag.h' line='82' column='1'/>
+          <var-decl name='key' type-id='ac5ab628' visibility='default' filepath='include/net/inet_frag.h' line='82' column='1'/>
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@@ -73230,14 +73176,6 @@
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-          <var-decl name='' type-id='ac5ab5fe' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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@@ -75925,7 +75863,7 @@
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-          <var-decl name='' type-id='ac5ab633' visibility='default' filepath='include/linux/sched.h' line='1213' column='1'/>
+          <var-decl name='' type-id='ac5ab5c7' visibility='default' filepath='include/linux/sched.h' line='1213' column='1'/>
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@@ -77841,15 +77779,15 @@
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-          <var-decl name='alloc_meta_offset' type-id='95e97e5e' visibility='default' filepath='include/linux/kasan.h' line='126' column='1'/>
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-          <var-decl name='free_meta_offset' type-id='95e97e5e' visibility='default' filepath='include/linux/kasan.h' line='127' column='1'/>
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+          <var-decl name='is_kmalloc' type-id='b50a4934' visibility='default' filepath='include/linux/kasan.h' line='123' column='1'/>
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@@ -78234,7 +78172,7 @@
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@@ -79003,7 +78941,7 @@
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@@ -79105,7 +79043,7 @@
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+          <var-decl name='data' type-id='ac5ab5fa' visibility='default' filepath='include/linux/pinctrl/machine.h' line='75' column='1'/>
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@@ -82093,7 +82031,7 @@
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         <subrange length='19' type-id='7ff19f0f' id='448ee30f'/>
@@ -102958,7 +102874,7 @@
           <var-decl name='fib6_node' type-id='f7b83e6d' visibility='default' filepath='include/net/ip6_fib.h' line='171' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='' type-id='ac5ab62a' visibility='default' filepath='include/net/ip6_fib.h' line='178' column='1'/>
+          <var-decl name='' type-id='ac5ab62b' visibility='default' filepath='include/net/ip6_fib.h' line='178' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
           <var-decl name='fib6_nsiblings' type-id='f0981eeb' visibility='default' filepath='include/net/ip6_fib.h' line='182' column='1'/>
@@ -104366,13 +104282,13 @@
           <var-decl name='proc_iops' type-id='de2c232c' visibility='default' filepath='fs/proc/internal.h' line='41' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='384'>
-          <var-decl name='' type-id='ac5ab603' visibility='default' filepath='fs/proc/internal.h' line='42' column='1'/>
+          <var-decl name='' type-id='ac5ab604' visibility='default' filepath='fs/proc/internal.h' line='42' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='448'>
           <var-decl name='proc_dops' type-id='1ee57353' visibility='default' filepath='fs/proc/internal.h' line='46' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='512'>
-          <var-decl name='' type-id='ac5ab604' visibility='default' filepath='fs/proc/internal.h' line='47' column='1'/>
+          <var-decl name='' type-id='ac5ab605' visibility='default' filepath='fs/proc/internal.h' line='47' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='576'>
           <var-decl name='write' type-id='7c2b18ab' visibility='default' filepath='fs/proc/internal.h' line='51' column='1'/>
@@ -105540,6 +105456,11 @@
         <parameter type-id='3b5c2208' name='vaf' filepath='drivers/gpu/drm/drm_print.c' line='99' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
+      <function-decl name='__drm_printfn_debug' mangled-name='__drm_printfn_debug' filepath='drivers/gpu/drm/drm_print.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_printfn_debug'>
+        <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='163' column='1'/>
+        <parameter type-id='3b5c2208' name='vaf' filepath='drivers/gpu/drm/drm_print.c' line='163' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
       <function-decl name='__drm_printfn_info' mangled-name='__drm_printfn_info' filepath='drivers/gpu/drm/drm_print.c' line='157' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__drm_printfn_info'>
         <parameter type-id='7ac48c21' name='p' filepath='drivers/gpu/drm/drm_print.c' line='157' column='1'/>
         <parameter type-id='3b5c2208' name='vaf' filepath='drivers/gpu/drm/drm_print.c' line='157' column='1'/>
@@ -105944,8 +105865,8 @@
         <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5270' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='__page_pinner_put_page' mangled-name='__page_pinner_put_page' filepath='mm/page_pinner.c' line='321' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_put_page'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_pinner.c' line='321' column='1'/>
+      <function-decl name='__page_pinner_put_page' mangled-name='__page_pinner_put_page' filepath='mm/page_pinner.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_put_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_pinner.c' line='273' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='__pci_register_driver' mangled-name='__pci_register_driver' filepath='drivers/pci/pci-driver.c' line='1378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__pci_register_driver'>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 435c393990dca..059afeaff4241 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -771,6 +771,7 @@
   drm_poll
   drm_prime_gem_destroy
   drm_printf
+  __drm_printfn_debug
   __drm_printfn_info
   __drm_printfn_seq_file
   drm_property_blob_get
-- 
GitLab


From b196350f2afed30a80b2007dadff251292abe8ed Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Mon, 11 Apr 2022 12:33:39 -0700
Subject: [PATCH 4692/4878] ANDROID: fuse-bpf: Fix lseek return value for
 offset 0

Bug: 227160050
Test: audible app now works
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: Ib14765285190b5838f28c25a69c91935d02c34f4
---
 fs/fuse/backing.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 118bd9d12945f..dc11545dcd48f 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -465,11 +465,15 @@ int fuse_lseek_backing(struct fuse_args *fa, struct file *file, loff_t offset, i
 
 	/* TODO: Handle changing of the file handle */
 	if (offset == 0) {
-		if (whence == SEEK_CUR)
-			return file->f_pos;
+		if (whence == SEEK_CUR) {
+			flo->offset = file->f_pos;
+			return flo->offset;
+		}
 
-		if (whence == SEEK_SET)
-			return vfs_setpos(file, 0, 0);
+		if (whence == SEEK_SET) {
+			flo->offset = vfs_setpos(file, 0, 0);
+			return flo->offset;
+		}
 	}
 
 	inode_lock(file->f_inode);
-- 
GitLab


From 2d2e0ad1d14d5866b9d5f14dcba260b9b04c86f2 Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Tue, 12 Apr 2022 09:50:23 +0100
Subject: [PATCH 4693/4878] ANDROID: KVM: arm64: Pin FFA mailboxes shared by
 the host

Gulshan reports that the hypervisor is not pinning the host FFA mailbox
pages, therefore allowing the host to unshare them after registration
and to later donate them for things like page-table pages.

Pin the host FFA mailboxes to prevent the host from unsharing them while
they are in use.

Bug: 228931886
Reported-by: Gulshan Singh <gsgx@google.com>
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I18ecad6ccaa3ef89015a71d97890fad55f0568f2
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 4dbd42a867565..2e5016399513e 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -176,6 +176,7 @@ static void do_ffa_rxtx_map(struct arm_smccc_res *res,
 	DECLARE_REG(phys_addr_t, rx, ctxt, 2);
 	DECLARE_REG(u32, npages, ctxt, 3);
 	int ret = 0;
+	void *rx_virt, *tx_virt;
 
 	if (npages != (KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE) / FFA_PAGE_SIZE) {
 		ret = FFA_RET_INVALID_PARAMETERS;
@@ -209,8 +210,22 @@ static void do_ffa_rxtx_map(struct arm_smccc_res *res,
 		goto err_unshare_tx;
 	}
 
-	host_kvm.ffa.tx = hyp_phys_to_virt(tx);
-	host_kvm.ffa.rx = hyp_phys_to_virt(rx);
+	tx_virt = hyp_phys_to_virt(tx);
+	ret = hyp_pin_shared_mem(tx_virt, tx_virt + 1);
+	if (ret) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto err_unshare_rx;
+	}
+
+	rx_virt = hyp_phys_to_virt(rx);
+	ret = hyp_pin_shared_mem(rx_virt, rx_virt + 1);
+	if (ret) {
+		ret = FFA_RET_INVALID_PARAMETERS;
+		goto err_unpin_tx;
+	}
+
+	host_kvm.ffa.tx = tx_virt;
+	host_kvm.ffa.rx = rx_virt;
 
 out_unlock:
 	hyp_spin_unlock(&host_kvm.ffa.lock);
@@ -218,6 +233,10 @@ out:
 	ffa_to_smccc_res(res, ret);
 	return;
 
+err_unpin_tx:
+	hyp_unpin_shared_mem(tx_virt, tx_virt + 1);
+err_unshare_rx:
+	__pkvm_host_unshare_hyp(hyp_phys_to_pfn(rx));
 err_unshare_tx:
 	__pkvm_host_unshare_hyp(hyp_phys_to_pfn(tx));
 err_unmap:
@@ -242,9 +261,11 @@ static void do_ffa_rxtx_unmap(struct arm_smccc_res *res,
 		goto out_unlock;
 	}
 
+	hyp_unpin_shared_mem(host_kvm.ffa.tx, host_kvm.ffa.tx + 1);
 	WARN_ON(__pkvm_host_unshare_hyp(hyp_virt_to_pfn(host_kvm.ffa.tx)));
 	host_kvm.ffa.tx = NULL;
 
+	hyp_unpin_shared_mem(host_kvm.ffa.rx, host_kvm.ffa.rx + 1);
 	WARN_ON(__pkvm_host_unshare_hyp(hyp_virt_to_pfn(host_kvm.ffa.rx)));
 	host_kvm.ffa.rx = NULL;
 
-- 
GitLab


From 83aa7ef8389c47a63474b7348666871852a421ea Mon Sep 17 00:00:00 2001
From: Will Deacon <willdeacon@google.com>
Date: Tue, 12 Apr 2022 09:55:24 +0100
Subject: [PATCH 4694/4878] ANDROID: KVM: arm64: Fix size calculation of FFA
 memory range

Ensure that the FFA memory range to be checked and annotated in the host
stage-2 page-table is page-aligned and that its size is calculated using
64-bit arithmetic to avoid the host triggering overflow and subsequent
truncation.

Bug: 228889679
Reported-by: Gulshan Singh <gsgx@google.com>
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: Ifc51ee9598905cf2926d19c53159804f89d74040
---
 arch/arm64/kvm/hyp/nvhe/ffa.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 2e5016399513e..1fd6c6e267bab 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -284,10 +284,13 @@ static u32 __ffa_host_share_ranges(struct ffa_mem_region_addr_range *ranges,
 
 	for (i = 0; i < nranges; ++i) {
 		struct ffa_mem_region_addr_range *range = &ranges[i];
-		u64 npages = (range->pg_cnt * FFA_PAGE_SIZE) / PAGE_SIZE;
+		u64 sz = (u64)range->pg_cnt * FFA_PAGE_SIZE;
 		u64 pfn = hyp_phys_to_pfn(range->address);
 
-		if (__pkvm_host_share_ffa(pfn, npages))
+		if (!PAGE_ALIGNED(sz))
+			break;
+
+		if (__pkvm_host_share_ffa(pfn, sz / PAGE_SIZE))
 			break;
 	}
 
@@ -301,10 +304,13 @@ static u32 __ffa_host_unshare_ranges(struct ffa_mem_region_addr_range *ranges,
 
 	for (i = 0; i < nranges; ++i) {
 		struct ffa_mem_region_addr_range *range = &ranges[i];
-		u64 npages = (range->pg_cnt * FFA_PAGE_SIZE) / PAGE_SIZE;
+		u64 sz = (u64)range->pg_cnt * FFA_PAGE_SIZE;
 		u64 pfn = hyp_phys_to_pfn(range->address);
 
-		if (__pkvm_host_unshare_ffa(pfn, npages))
+		if (!PAGE_ALIGNED(sz))
+			break;
+
+		if (__pkvm_host_unshare_ffa(pfn, sz / PAGE_SIZE))
 			break;
 	}
 
-- 
GitLab


From d9e4b67784866047e8cfb5598cdf1ebc0c71f3d9 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Fri, 8 Apr 2022 14:29:47 -0700
Subject: [PATCH 4695/4878] ANDROID: mm: freeing MIGRATE_ISOLATE page instantly

Since Android has pcp list for MIGRATE_CMA[1], it could cause
CMA allocation latency due to not freeing the MIGRATE_ISOLATE
page immediately.

Originally, MIGRATE_ISOLATED page is supposed to go buddy list
with skipping pcp list. Otherwise, the page could be reallocated
from pcp list or staying on the pcp list until the pcp is drained
so that CMA keeps retrying since it couldn't find the freed page
from buddy list. That worked before since the CMA pfnblocks changed
only from MIGRATE_CMA to MIGRATE_ISOLATE and free function logic
in page allocator has checked MIGRATE_ISOLATEness on every CMA
pages using below.

  free_unref_page_commit
    if (migratetype >= MIGRATE_PCPTYPES)
      if(is_migrate_isolate(migratetype))
        free_one_page(page);

It worked since enum MIGRATE_CMA was bigger than enum
MIGRATE_PCPTYPES but since [1], the enum MIGRATE_CMA is less than
MIGRATE_PCPTYPES so the logic above doesn't work any more.

It could cause following race

         CPU 0	                          CPU 1
  free_unref_page
  migratetype = get_pfnblock_migratetype()
  set_pcppage_migratetype(MIGRATE_CMA)

                                cma_alloc
				alloc_contig_range
                              	set_migrate_isolate(MIGRATE_ISOLATE)
  add the page into pcp list
  the page could be reallocated

This patch couldn't fix the race completely due to missing zone->lock
in order-0 page free(for performance reason). However, it's not a new
problem so we need to deal with the issue separately.

[1] ANDROID: mm: add cma pcp list

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ibea20085ce5bfb4b74b83b041f9bda9a380120f9
---
 mm/page_alloc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 616849a7f8c89..9ba48e2a36b94 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3350,19 +3350,20 @@ static void free_unref_page_commit(struct page *page, unsigned long pfn)
 	__count_vm_event(PGFREE);
 
 	/*
-	 * We only track unmovable, reclaimable and movable on pcp lists.
+	 * We only track unmovable, reclaimable, movable and cma on pcp lists.
 	 * Free ISOLATE pages back to the allocator because they are being
 	 * offlined but treat HIGHATOMIC as movable pages so we can get those
 	 * areas back if necessary. Otherwise, we may have to free
 	 * excessively into the page allocator
 	 */
-	if (migratetype >= MIGRATE_PCPTYPES) {
+	if (migratetype >= MIGRATE_CMA) {
 		if (unlikely(is_migrate_isolate(migratetype))) {
 			free_one_page(zone, page, pfn, 0, migratetype,
 				      FPI_NONE);
 			return;
 		}
-		migratetype = MIGRATE_MOVABLE;
+		if (migratetype == MIGRATE_HIGHATOMIC)
+			migratetype = MIGRATE_MOVABLE;
 	}
 
 	pcp = &this_cpu_ptr(zone->pageset)->pcp;
-- 
GitLab


From 7a197aa50441659a4c3d2e86006c9502ba094b33 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Tue, 12 Apr 2022 15:00:39 -0700
Subject: [PATCH 4696/4878] ANDROID: mm: fix build break

MIGRATE_CMA is defined only when CONFIG_CMA. Thus, we
couldn't use MIGRATE_CMA directly to build for both
!CONFIG_CMA and CONFIG_CMA.

Let's use MIGRATE_RECLAIMABLE in the case.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Idb4fc6f4ea02ab074f270ce62001182c8fff3b37
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9ba48e2a36b94..7041645cfe55d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3356,7 +3356,7 @@ static void free_unref_page_commit(struct page *page, unsigned long pfn)
 	 * areas back if necessary. Otherwise, we may have to free
 	 * excessively into the page allocator
 	 */
-	if (migratetype >= MIGRATE_CMA) {
+	if (migratetype > MIGRATE_RECLAIMABLE) {
 		if (unlikely(is_migrate_isolate(migratetype))) {
 			free_one_page(zone, page, pfn, 0, migratetype,
 				      FPI_NONE);
-- 
GitLab


From 68c99368830b9dd5d51ea07d8c730dfb6f7fc7a2 Mon Sep 17 00:00:00 2001
From: Yi Kong <yikong@google.com>
Date: Wed, 13 Apr 2022 08:34:02 +0800
Subject: [PATCH 4697/4878] ANDROID: clang: update to 14.0.4

Bug: 225394140
Signed-off-by: Yi Kong <yikong@google.com>
Change-Id: I9561e11768217b1ea9ab7c90d87445843784f8e9
---
 build.config.constants | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.constants b/build.config.constants
index 17300e99677f7..eea6186b0126d 100644
--- a/build.config.constants
+++ b/build.config.constants
@@ -1 +1 @@
-CLANG_VERSION=r450784
+CLANG_VERSION=r450784b
-- 
GitLab


From 0c37c1459af4639fd4fb5aedb4a05807f36a2f37 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 23 Mar 2022 16:43:25 -0700
Subject: [PATCH 4698/4878] ANDROID: fuse-bpf: Fix readdir

Fuse uses generic_file_llseek, so we must account for that in readdir to
ensure we read from the correct offset in the lower filesystem.

Bug: 226655281
Test: generic/257, fuse_test
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ie752c1c645e95b7c03ef9497562758a5c42b514a
---
 fs/fuse/backing.c                             | 44 ++++++++++++++++---
 fs/fuse/fuse_i.h                              | 10 ++---
 fs/fuse/readdir.c                             | 12 +++--
 .../selftests/filesystems/fuse/fuse_test.c    |  2 +-
 4 files changed, 49 insertions(+), 19 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index dc11545dcd48f..250d99af90fe7 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -2189,7 +2189,7 @@ void *fuse_symlink_finalize(
 
 int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
 			    struct file *file, struct dir_context *ctx,
-			    bool *force_again, bool *allow_force)
+			    bool *force_again, bool *allow_force, bool is_continued)
 {
 	struct fuse_file *ff = file->private_data;
 	u8 *page = (u8 *)__get_free_page(GFP_KERNEL);
@@ -2259,9 +2259,35 @@ static int filldir(struct dir_context *ctx, const char *name, int namelen,
 	return 0;
 }
 
+static int parse_dirfile(char *buf, size_t nbytes, struct dir_context *ctx)
+{
+	while (nbytes >= FUSE_NAME_OFFSET) {
+		struct fuse_dirent *dirent = (struct fuse_dirent *) buf;
+		size_t reclen = FUSE_DIRENT_SIZE(dirent);
+
+		if (!dirent->namelen || dirent->namelen > FUSE_NAME_MAX)
+			return -EIO;
+		if (reclen > nbytes)
+			break;
+		if (memchr(dirent->name, '/', dirent->namelen) != NULL)
+			return -EIO;
+
+		ctx->pos = dirent->off;
+		if (!dir_emit(ctx, dirent->name, dirent->namelen, dirent->ino,
+				dirent->type))
+			break;
+
+		buf += reclen;
+		nbytes -= reclen;
+	}
+
+	return 0;
+}
+
+
 int fuse_readdir_backing(struct fuse_args *fa,
 			 struct file *file, struct dir_context *ctx,
-			 bool *force_again, bool *allow_force)
+			 bool *force_again, bool *allow_force, bool is_continued)
 {
 	struct fuse_file *ff = file->private_data;
 	struct file *backing_dir = ff->backing_file;
@@ -2278,6 +2304,9 @@ int fuse_readdir_backing(struct fuse_args *fa,
 	if (!ec.addr)
 		return -ENOMEM;
 
+	if (!is_continued)
+		backing_dir->f_pos = file->f_pos;
+
 	err = iterate_dir(backing_dir, &ec.ctx);
 	if (ec.offset == 0)
 		*allow_force = false;
@@ -2290,18 +2319,19 @@ int fuse_readdir_backing(struct fuse_args *fa,
 
 void *fuse_readdir_finalize(struct fuse_args *fa,
 			    struct file *file, struct dir_context *ctx,
-			    bool *force_again, bool *allow_force)
+			    bool *force_again, bool *allow_force, bool is_continued)
 {
-	int err = 0;
+	struct fuse_read_out *fro = fa->out_args[0].value;
 	struct fuse_file *ff = file->private_data;
 	struct file *backing_dir = ff->backing_file;
-	struct fuse_read_out *fro = fa->out_args[0].value;
+	int err = 0;
 
-	err = fuse_parse_dirfile(fa->out_args[1].value,
-				 fa->out_args[1].size, file, ctx);
+	err = parse_dirfile(fa->out_args[1].value, fa->out_args[1].size, ctx);
 	*force_again = !!fro->again;
 	if (*force_again && !*allow_force)
 		err = -EINVAL;
+
+	ctx->pos = fro->offset;
 	backing_dir->f_pos = fro->offset;
 
 	free_page((unsigned long) fa->out_args[1].value);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index d48f5b1e61784..6a768c23be133 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -987,10 +987,6 @@ struct fuse_io_args {
 void fuse_read_args_fill(struct fuse_io_args *ia, struct file *file, loff_t pos,
 			 size_t count, int opcode);
 
-
-int fuse_parse_dirfile(char *buf, size_t nbytes, struct file *file,
-			 struct dir_context *ctx);
-
 /**
  * Send OPEN or OPENDIR request
  */
@@ -1637,13 +1633,13 @@ struct fuse_read_io {
 
 int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
 			    struct file *file, struct dir_context *ctx,
-			    bool *force_again, bool *allow_force);
+			    bool *force_again, bool *allow_force, bool is_continued);
 int fuse_readdir_backing(struct fuse_args *fa,
 			 struct file *file, struct dir_context *ctx,
-			 bool *force_again, bool *allow_force);
+			 bool *force_again, bool *allow_force, bool is_continued);
 void *fuse_readdir_finalize(struct fuse_args *fa,
 			    struct file *file, struct dir_context *ctx,
-			    bool *force_again, bool *allow_force);
+			    bool *force_again, bool *allow_force, bool is_continued);
 
 int fuse_access_initialize(struct fuse_args *fa, struct fuse_access_in *fai,
 			   struct inode *inode, int mask);
diff --git a/fs/fuse/readdir.c b/fs/fuse/readdir.c
index 4a8a3d5425b3e..e802426d42a9d 100644
--- a/fs/fuse/readdir.c
+++ b/fs/fuse/readdir.c
@@ -121,7 +121,7 @@ static bool fuse_emit(struct file *file, struct dir_context *ctx,
 			dirent->type);
 }
 
-int fuse_parse_dirfile(char *buf, size_t nbytes, struct file *file,
+static int parse_dirfile(char *buf, size_t nbytes, struct file *file,
 			 struct dir_context *ctx)
 {
 	while (nbytes >= FUSE_NAME_OFFSET) {
@@ -360,7 +360,7 @@ static int fuse_readdir_uncached(struct file *file, struct dir_context *ctx)
 			res = parse_dirplusfile(page_address(page), res,
 						file, ctx, attr_version);
 		} else {
-			res = fuse_parse_dirfile(page_address(page), res, file,
+			res = parse_dirfile(page_address(page), res, file,
 					    ctx);
 		}
 	}
@@ -574,13 +574,17 @@ int fuse_readdir(struct file *file, struct dir_context *ctx)
 #ifdef CONFIG_FUSE_BPF
 	struct fuse_err_ret fer;
 	bool force_again, allow_force;
+	bool is_continued = false;
+
 again:
 	fer = fuse_bpf_backing(inode, struct fuse_read_io,
 			       fuse_readdir_initialize, fuse_readdir_backing,
 			       fuse_readdir_finalize,
-			       file, ctx, &force_again, &allow_force);
-	if (force_again && !IS_ERR(fer.result))
+			       file, ctx, &force_again, &allow_force, is_continued);
+	if (force_again && !IS_ERR(fer.result)) {
+		is_continued = true;
 		goto again;
+	}
 
 	if (fer.ret)
 		return PTR_ERR(fer.result);
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_test.c b/tools/testing/selftests/filesystems/fuse/fuse_test.c
index 857484b90ae71..7adc6bdb22416 100644
--- a/tools/testing/selftests/filesystems/fuse/fuse_test.c
+++ b/tools/testing/selftests/filesystems/fuse/fuse_test.c
@@ -485,7 +485,7 @@ static int bpf_test_redact_readdir(const char *mount_dir)
 		TESTSYSCALL(closedir(dir));
 		dir = NULL;
 	FUSE_DAEMON
-	bool skip = true;
+		bool skip = true;
 		for (int i = 0; i < ARRAY_SIZE(names) + 1; i++) {
 			uint8_t bytes_in[FUSE_MIN_READ_BUFFER];
 			uint8_t bytes_out[FUSE_MIN_READ_BUFFER];
-- 
GitLab


From 0f51319527891bb34c9d5b8ac645053360daa950 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Mon, 4 Apr 2022 18:11:22 -0700
Subject: [PATCH 4699/4878] ANDROID: fuse-bpf: Fix fixattr in rename

Existing fixattr was adjusting the same node twice.

Bug: 226655982
Test: generic/241 generic/269
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I4b1cb6d626ee6bd9010012ac126b78f14d6157d0
---
 fs/fuse/backing.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 250d99af90fe7..7f089d2231e3e 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -1565,7 +1565,7 @@ static int fuse_rename_backing_common(
 	if (target_inode)
 		fsstack_copy_attr_all(target_inode,
 				get_fuse_inode(target_inode)->backing_inode);
-	fsstack_copy_attr_all(newdir, d_inode(new_backing_dir_dentry));
+	fsstack_copy_attr_all(d_inode(oldent), d_inode(old_backing_dentry));
 unlock:
 	unlock_rename(old_backing_dir_dentry, new_backing_dir_dentry);
 put_parents:
-- 
GitLab


From 8e24eb9a2d7e4a81d4f206ce4ea08228e8670d91 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Fri, 8 Apr 2022 19:06:56 -0700
Subject: [PATCH 4700/4878] ANDROID: fuse-bpf: Rename iocb_fuse to iocb_orig

The current name is a bit confusing. iocb_fuse could refer to the iocb
passed to fuse or created by fuse. The new name unambiguously refers to
the one passed in to fuse.

Test: compiles, behavior unchanged
Bug: 217570523
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I955500eb8a3186252427fd06ca6e99b4fec469b6
---
 fs/fuse/backing.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 7f089d2231e3e..6dd34a05a464a 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -17,7 +17,7 @@
 
 struct fuse_bpf_aio_req {
 	struct kiocb iocb;
-	struct kiocb *iocb_fuse;
+	struct kiocb *iocb_orig;
 };
 
 static void fuse_file_accessed(struct file *dst_file, struct file *src_file)
@@ -813,16 +813,16 @@ void *fuse_removexattr_finalize(struct fuse_args *fa,
 static void fuse_bpf_aio_cleanup_handler(struct fuse_bpf_aio_req *aio_req)
 {
 	struct kiocb *iocb = &aio_req->iocb;
-	struct kiocb *iocb_fuse = aio_req->iocb_fuse;
+	struct kiocb *iocb_orig = aio_req->iocb_orig;
 
 	if (iocb->ki_flags & IOCB_WRITE) {
 		__sb_writers_acquired(file_inode(iocb->ki_filp)->i_sb,
 				      SB_FREEZE_WRITE);
 		file_end_write(iocb->ki_filp);
-		fuse_copyattr(iocb_fuse->ki_filp, iocb->ki_filp);
+		fuse_copyattr(iocb_orig->ki_filp, iocb->ki_filp);
 	}
 
-	iocb_fuse->ki_pos = iocb->ki_pos;
+	iocb_orig->ki_pos = iocb->ki_pos;
 	kfree(aio_req);
 }
 
@@ -830,10 +830,10 @@ static void fuse_bpf_aio_rw_complete(struct kiocb *iocb, long res, long res2)
 {
 	struct fuse_bpf_aio_req *aio_req =
 		container_of(iocb, struct fuse_bpf_aio_req, iocb);
-	struct kiocb *iocb_fuse = aio_req->iocb_fuse;
+	struct kiocb *iocb_orig = aio_req->iocb_orig;
 
 	fuse_bpf_aio_cleanup_handler(aio_req);
-	iocb_fuse->ki_complete(iocb_fuse, res, res2);
+	iocb_orig->ki_complete(iocb_orig, res, res2);
 }
 
 
@@ -899,7 +899,7 @@ int fuse_file_read_iter_backing(struct fuse_args *fa,
 		aio_req = kzalloc(sizeof(struct fuse_bpf_aio_req), GFP_KERNEL);
 		if (!aio_req)
 			goto out;
-		aio_req->iocb_fuse = iocb;
+		aio_req->iocb_orig = iocb;
 		kiocb_clone(&aio_req->iocb, iocb, ff->backing_file);
 		aio_req->iocb.ki_complete = fuse_bpf_aio_rw_complete;
 		ret = vfs_iocb_iter_read(ff->backing_file, &aio_req->iocb, to);
@@ -991,7 +991,7 @@ int fuse_file_write_iter_backing(struct fuse_args *fa,
 
 		file_start_write(ff->backing_file);
 		__sb_writers_release(file_inode(ff->backing_file)->i_sb, SB_FREEZE_WRITE);
-		aio_req->iocb_fuse = iocb;
+		aio_req->iocb_orig = iocb;
 		kiocb_clone(&aio_req->iocb, iocb, ff->backing_file);
 		aio_req->iocb.ki_complete = fuse_bpf_aio_rw_complete;
 		ret = vfs_iocb_iter_write(ff->backing_file, &aio_req->iocb, from);
-- 
GitLab


From 128ed57bca5b3fa04fa1f12e18885e5b6d459de8 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Fri, 8 Apr 2022 19:08:53 -0700
Subject: [PATCH 4701/4878] ANDROID: fuse-bpf: Use cache and refcount

Allocates the iocb we create for asynchronous IO from a cache instead of
a regular kzalloc

Test: generic/467 and fuse_test
Bug: 217570523
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I27dcec89cd585835f6a8e80e1ae30c503f4038c8
---
 fs/fuse/backing.c | 38 +++++++++++++++++++++++++++++++++-----
 fs/fuse/control.c |  2 +-
 fs/fuse/fuse_i.h  |  5 ++++-
 fs/fuse/inode.c   |  7 +++++++
 4 files changed, 45 insertions(+), 7 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 6dd34a05a464a..9bc1c51f8f9ec 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -17,9 +17,12 @@
 
 struct fuse_bpf_aio_req {
 	struct kiocb iocb;
+	refcount_t ref;
 	struct kiocb *iocb_orig;
 };
 
+static struct kmem_cache *fuse_bpf_aio_request_cachep;
+
 static void fuse_file_accessed(struct file *dst_file, struct file *src_file)
 {
 	struct inode *dst_inode;
@@ -810,6 +813,12 @@ void *fuse_removexattr_finalize(struct fuse_args *fa,
 	return NULL;
 }
 
+static inline void fuse_bpf_aio_put(struct fuse_bpf_aio_req *aio_req)
+{
+	if (refcount_dec_and_test(&aio_req->ref))
+		kmem_cache_free(fuse_bpf_aio_request_cachep, aio_req);
+}
+
 static void fuse_bpf_aio_cleanup_handler(struct fuse_bpf_aio_req *aio_req)
 {
 	struct kiocb *iocb = &aio_req->iocb;
@@ -821,9 +830,8 @@ static void fuse_bpf_aio_cleanup_handler(struct fuse_bpf_aio_req *aio_req)
 		file_end_write(iocb->ki_filp);
 		fuse_copyattr(iocb_orig->ki_filp, iocb->ki_filp);
 	}
-
 	iocb_orig->ki_pos = iocb->ki_pos;
-	kfree(aio_req);
+	fuse_bpf_aio_put(aio_req);
 }
 
 static void fuse_bpf_aio_rw_complete(struct kiocb *iocb, long res, long res2)
@@ -896,13 +904,16 @@ int fuse_file_read_iter_backing(struct fuse_args *fa,
 		struct fuse_bpf_aio_req *aio_req;
 
 		ret = -ENOMEM;
-		aio_req = kzalloc(sizeof(struct fuse_bpf_aio_req), GFP_KERNEL);
+		aio_req = kmem_cache_zalloc(fuse_bpf_aio_request_cachep, GFP_KERNEL);
 		if (!aio_req)
 			goto out;
+
 		aio_req->iocb_orig = iocb;
 		kiocb_clone(&aio_req->iocb, iocb, ff->backing_file);
 		aio_req->iocb.ki_complete = fuse_bpf_aio_rw_complete;
+		refcount_set(&aio_req->ref, 2);
 		ret = vfs_iocb_iter_read(ff->backing_file, &aio_req->iocb, to);
+		fuse_bpf_aio_put(aio_req);
 		if (ret != -EIOCBQUEUED)
 			fuse_bpf_aio_cleanup_handler(aio_req);
 	}
@@ -984,8 +995,7 @@ int fuse_file_write_iter_backing(struct fuse_args *fa,
 		struct fuse_bpf_aio_req *aio_req;
 
 		ret = -ENOMEM;
-		/* TODO get this from a cache? */
-		aio_req = kzalloc(sizeof(struct fuse_bpf_aio_req), GFP_KERNEL);
+		aio_req = kmem_cache_zalloc(fuse_bpf_aio_request_cachep, GFP_KERNEL);
 		if (!aio_req)
 			goto out;
 
@@ -994,7 +1004,9 @@ int fuse_file_write_iter_backing(struct fuse_args *fa,
 		aio_req->iocb_orig = iocb;
 		kiocb_clone(&aio_req->iocb, iocb, ff->backing_file);
 		aio_req->iocb.ki_complete = fuse_bpf_aio_rw_complete;
+		refcount_set(&aio_req->ref, 2);
 		ret = vfs_iocb_iter_write(ff->backing_file, &aio_req->iocb, from);
+		fuse_bpf_aio_put(aio_req);
 		if (ret != -EIOCBQUEUED)
 			fuse_bpf_aio_cleanup_handler(aio_req);
 	}
@@ -2369,3 +2381,19 @@ void *fuse_access_finalize(struct fuse_args *fa, struct inode *inode, int mask)
 {
 	return NULL;
 }
+
+int __init fuse_bpf_init(void)
+{
+	fuse_bpf_aio_request_cachep = kmem_cache_create("fuse_bpf_aio_req",
+						   sizeof(struct fuse_bpf_aio_req),
+						   0, SLAB_HWCACHE_ALIGN, NULL);
+	if (!fuse_bpf_aio_request_cachep)
+		return -ENOMEM;
+
+	return 0;
+}
+
+void __exit fuse_bpf_cleanup(void)
+{
+	kmem_cache_destroy(fuse_bpf_aio_request_cachep);
+}
diff --git a/fs/fuse/control.c b/fs/fuse/control.c
index cc7e94d73c6cc..a4b16bc59f7a3 100644
--- a/fs/fuse/control.c
+++ b/fs/fuse/control.c
@@ -395,7 +395,7 @@ int __init fuse_ctl_init(void)
 	return register_filesystem(&fuse_ctl_fs_type);
 }
 
-void __exit fuse_ctl_cleanup(void)
+void fuse_ctl_cleanup(void)
 {
 	unregister_filesystem(&fuse_ctl_fs_type);
 }
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 6a768c23be133..b1f142495a5c2 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1055,7 +1055,7 @@ int fuse_dev_init(void);
 void fuse_dev_cleanup(void);
 
 int fuse_ctl_init(void);
-void __exit fuse_ctl_cleanup(void);
+void fuse_ctl_cleanup(void);
 
 /**
  * Simple request sending that does request allocation and freeing
@@ -1780,6 +1780,9 @@ struct fuse_err_ret {
 	bool ret;
 };
 
+int __init fuse_bpf_init(void);
+void __exit fuse_bpf_cleanup(void);
+
 /*
  * expression statement to wrap the backing filter logic
  * struct inode *inode: inode with bpf and backing inode
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 2e9af07ba431f..7092ca58040c4 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1903,11 +1903,17 @@ static int __init fuse_init(void)
 	if (res)
 		goto err_sysfs_cleanup;
 
+	res = fuse_bpf_init();
+	if (res)
+		goto err_ctl_cleanup;
+
 	sanitize_global_limit(&max_user_bgreq);
 	sanitize_global_limit(&max_user_congthresh);
 
 	return 0;
 
+ err_ctl_cleanup:
+	fuse_ctl_cleanup();
  err_sysfs_cleanup:
 	fuse_sysfs_cleanup();
  err_dev_cleanup:
@@ -1925,6 +1931,7 @@ static void __exit fuse_exit(void)
 	fuse_ctl_cleanup();
 	fuse_sysfs_cleanup();
 	fuse_fs_cleanup();
+	fuse_bpf_cleanup();
 	fuse_dev_cleanup();
 }
 
-- 
GitLab


From 8be6e93244d88e7835a1d53632887c200bef0767 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Fri, 8 Apr 2022 19:09:50 -0700
Subject: [PATCH 4702/4878] ANDROID: fuse-bpf: Fix read_iter

We had a size mismatch for the return value, leading to EIOCBQUEUED
getting interpreted as a return size instead of an error code.

Test: generic/467, generic/013, and fuse_test
Bug: 217570523
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: I64f9d5263f8b37d3c0e286467f9351997b294cc2
---
 fs/fuse/backing.c | 24 +++++++++++++++---------
 fs/fuse/file.c    |  2 +-
 fs/fuse/fuse_i.h  | 10 +++++++++-
 3 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 9bc1c51f8f9ec..fd3831472a2e0 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -846,29 +846,33 @@ static void fuse_bpf_aio_rw_complete(struct kiocb *iocb, long res, long res2)
 
 
 int fuse_file_read_iter_initialize(
-		struct fuse_args *fa, struct fuse_read_in *fri,
+		struct fuse_args *fa, struct fuse_file_read_iter_io *fri,
 		struct kiocb *iocb, struct iov_iter *to)
 {
 	struct file *file = iocb->ki_filp;
 	struct fuse_file *ff = file->private_data;
 
-	*fri = (struct fuse_read_in) {
+	fri->fri = (struct fuse_read_in) {
 		.fh = ff->fh,
 		.offset = iocb->ki_pos,
 		.size = to->count,
 	};
 
+	fri->frio = (struct fuse_read_iter_out) {
+		.ret = fri->fri.size,
+	};
+
 	/* TODO we can't assume 'to' is a kvec */
 	/* TODO we also can't assume the vector has only one component */
 	*fa = (struct fuse_args) {
 		.opcode = FUSE_READ,
 		.nodeid = ff->nodeid,
 		.in_numargs = 1,
-		.in_args[0].size = sizeof(*fri),
-		.in_args[0].value = fri,
+		.in_args[0].size = sizeof(fri->fri),
+		.in_args[0].value = &fri->fri,
 		.out_numargs = 1,
-		.out_args[0].size = fri->size,
-		.out_args[0].value = to->kvec->iov_base,
+		.out_args[0].size = sizeof(fri->frio),
+		.out_args[0].value = &fri->frio,
 		/*
 		 * TODO Design this properly.
 		 * Possible approach: do not pass buf to bpf
@@ -884,6 +888,7 @@ int fuse_file_read_iter_initialize(
 int fuse_file_read_iter_backing(struct fuse_args *fa,
 		struct kiocb *iocb, struct iov_iter *to)
 {
+	struct fuse_read_iter_out *frio = fa->out_args[0].value;
 	struct file *file = iocb->ki_filp;
 	struct fuse_file *ff = file->private_data;
 	ssize_t ret;
@@ -918,8 +923,7 @@ int fuse_file_read_iter_backing(struct fuse_args *fa,
 			fuse_bpf_aio_cleanup_handler(aio_req);
 	}
 
-	if (ret >= 0)
-		fa->out_args[0].size = ret;
+	frio->ret = ret;
 
 	/* TODO Need to point value at the buffer for post-modification */
 
@@ -932,7 +936,9 @@ out:
 void *fuse_file_read_iter_finalize(struct fuse_args *fa,
 		struct kiocb *iocb, struct iov_iter *to)
 {
-	return ERR_PTR(fa->out_args[0].size);
+	struct fuse_read_iter_out *frio = fa->out_args[0].value;
+
+	return ERR_PTR(frio->ret);
 }
 
 int fuse_file_write_iter_initialize(
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index a8070719881c9..d492898b33f52 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1643,7 +1643,7 @@ static ssize_t fuse_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	{
 		struct fuse_err_ret fer;
 
-		fer = fuse_bpf_backing(inode, struct fuse_read_in,
+		fer = fuse_bpf_backing(inode, struct fuse_file_read_iter_io,
 				       fuse_file_read_iter_initialize,
 				       fuse_file_read_iter_backing,
 				       fuse_file_read_iter_finalize,
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index b1f142495a5c2..fac80eadaff77 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1512,8 +1512,16 @@ int fuse_removexattr_backing(struct fuse_args *fa,
 void *fuse_removexattr_finalize(struct fuse_args *fa,
 				struct dentry *dentry, const char *name);
 
+struct fuse_read_iter_out {
+	uint64_t ret;
+};
+struct fuse_file_read_iter_io {
+	struct fuse_read_in fri;
+	struct fuse_read_iter_out frio;
+};
+
 int fuse_file_read_iter_initialize(
-		struct fuse_args *fa, struct fuse_read_in *fri,
+		struct fuse_args *fa, struct fuse_file_read_iter_io *fri,
 		struct kiocb *iocb, struct iov_iter *to);
 int fuse_file_read_iter_backing(struct fuse_args *fa,
 		struct kiocb *iocb, struct iov_iter *to);
-- 
GitLab


From 0a227f89cfc147ec8f1d403a81b6b7d5154f4353 Mon Sep 17 00:00:00 2001
From: Fuad Tabba <tabba@google.com>
Date: Thu, 7 Apr 2022 16:12:41 +0100
Subject: [PATCH 4703/4878] ANDROID: KVM: arm64: Do not allow memslot
 modifications once a PVM has run

Currently trying to move or delete a memslot results in a warning
and a failure. Userspace shouldn't be able to trigger kernel
warnings.

The cause is that in protected mode, stage-2 is managed by hyp.
Modifying a memslot flushes the shadow memslot, which tries to
unmap any stage-2 mapped pages.

Bug: 226890762
Signed-off-by: Fuad Tabba <tabba@google.com>
Change-Id: Icc6a0aada76e8492285cd5509bad1ee57700af7c
---
 arch/arm64/kvm/mmu.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 20249b7492f32..14f69c7fa141e 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1857,6 +1857,13 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
 			change != KVM_MR_FLAGS_ONLY)
 		return 0;
 
+	/* In protected mode, cannot modify memslots once a VM has run. */
+	if (is_protected_kvm_enabled() &&
+	    (change == KVM_MR_DELETE || change == KVM_MR_MOVE) &&
+	    kvm->arch.pkvm.shadow_handle) {
+		return -EPERM;
+	}
+
 	/*
 	 * Prevent userspace from creating a memory region outside of the IPA
 	 * space addressable by the KVM guest IPA space.
@@ -1926,6 +1933,10 @@ void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
 	gpa_t gpa = slot->base_gfn << PAGE_SHIFT;
 	phys_addr_t size = slot->npages << PAGE_SHIFT;
 
+	/* Stage-2 is managed by hyp in protected mode. */
+	if (is_protected_kvm_enabled())
+		return;
+
 	spin_lock(&kvm->mmu_lock);
 	unmap_stage2_range(&kvm->arch.mmu, gpa, size);
 	spin_unlock(&kvm->mmu_lock);
-- 
GitLab


From 5ef1198a153ece1a3dca6e82ba2e873ff340ca8d Mon Sep 17 00:00:00 2001
From: Woody Lin <woodylin@google.com>
Date: Thu, 14 Apr 2022 06:31:02 +0000
Subject: [PATCH 4704/4878] ANDROID: Update the ABI symbol list

Leaf changes summary: 5 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 5 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

5 Added functions:

  [A] 'function void interval_tree_insert(interval_tree_node*, rb_root_cached*)'
  [A] 'function interval_tree_node* interval_tree_iter_first(rb_root_cached*, unsigned long int, unsigned long int)'
  [A] 'function interval_tree_node* interval_tree_iter_next(interval_tree_node*, unsigned long int, unsigned long int)'
  [A] 'function void interval_tree_remove(interval_tree_node*, rb_root_cached*)'
  [A] 'function void suspend_set_ops(const platform_suspend_ops*)'

Bug: 226105845
Bug: 226167799
Signed-off-by: Woody Lin <woodylin@google.com>
Change-Id: I5da0ec8c678e36a46418c0f440fad87de1ac7a52
---
 android/abi_gki_aarch64.xml     | 282 ++++++++++++++++++++++++++------
 android/abi_gki_aarch64_generic |   6 +
 2 files changed, 234 insertions(+), 54 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 67c25ba597ff3..cb5f8787171da 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -1865,6 +1865,10 @@
       <elf-symbol name='input_unregister_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x550e832b'/>
       <elf-symbol name='int_sqrt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb678366f'/>
       <elf-symbol name='int_to_scsilun' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ed90adc'/>
+      <elf-symbol name='interval_tree_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab5a1eb'/>
+      <elf-symbol name='interval_tree_iter_first' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa44a1307'/>
+      <elf-symbol name='interval_tree_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd96babb4'/>
+      <elf-symbol name='interval_tree_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b53e14'/>
       <elf-symbol name='invalidate_mapping_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x682b3bb4'/>
       <elf-symbol name='io_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93a6e0b2'/>
       <elf-symbol name='io_schedule_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbc4f89e'/>
@@ -3153,6 +3157,7 @@
       <elf-symbol name='submit_bio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2fe6934'/>
       <elf-symbol name='submit_bio_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42bca0bc'/>
       <elf-symbol name='subsys_system_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0153998'/>
+      <elf-symbol name='suspend_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ab0c7e0'/>
       <elf-symbol name='sync_file_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x810751d5'/>
       <elf-symbol name='sync_file_get_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dca08ee'/>
       <elf-symbol name='synchronize_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe523ad75'/>
@@ -4913,7 +4918,23 @@
         <return type-id='48b5725f'/>
       </function-type>
       <pointer-type-def type-id='e61c85d0' size-in-bits='64' id='03c386c6'/>
-      <class-decl name='bpf_local_storage_map' is-struct='yes' visibility='default' is-declaration-only='yes' id='03c3afa4'/>
+      <class-decl name='bpf_local_storage_map' size-in-bits='2560' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='42' column='1' id='03c3afa4'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='map' type-id='9e4acc7a' visibility='default' filepath='include/linux/bpf_local_storage.h' line='43' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2048'>
+          <var-decl name='buckets' type-id='3bdbc3eb' visibility='default' filepath='include/linux/bpf_local_storage.h' line='50' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2112'>
+          <var-decl name='bucket_log' type-id='19c2251e' visibility='default' filepath='include/linux/bpf_local_storage.h' line='51' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2144'>
+          <var-decl name='elem_size' type-id='1dc6a898' visibility='default' filepath='include/linux/bpf_local_storage.h' line='52' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='2160'>
+          <var-decl name='cache_idx' type-id='1dc6a898' visibility='default' filepath='include/linux/bpf_local_storage.h' line='53' column='1'/>
+        </data-member>
+      </class-decl>
       <function-type size-in-bits='64' id='03d219e2'>
         <parameter type-id='8cffa561'/>
         <return type-id='48b5725f'/>
@@ -11393,6 +11414,7 @@
       </function-type>
       <pointer-type-def type-id='23a849db' size-in-bits='64' id='16cfe92b'/>
       <pointer-type-def type-id='00d2c7e1' size-in-bits='64' id='16d08491'/>
+      <pointer-type-def type-id='9666e837' size-in-bits='64' id='16d5931b'/>
       <array-type-def dimensions='1' type-id='a84c031d' size-in-bits='256' id='16dc656a'>
         <subrange length='32' type-id='7ff19f0f' id='ae5bde82'/>
       </array-type-def>
@@ -18867,7 +18889,7 @@
         <parameter type-id='855e3679'/>
         <return type-id='95e97e5e'/>
       </function-type>
-      <typedef-decl name='va_list' type-id='7f896fb4' filepath='prebuilts/clang/host/linux-x86/clang-r450784/lib64/clang/14.0.3/include/stdarg.h' line='14' column='1' id='2aee9912'/>
+      <typedef-decl name='va_list' type-id='7f896fb4' filepath='prebuilts/clang/host/linux-x86/clang-r450784b/lib64/clang/14.0.4/include/stdarg.h' line='14' column='1' id='2aee9912'/>
       <class-decl name='transport_container' size-in-bits='832' is-struct='yes' visibility='default' filepath='include/linux/transport_class.h' line='56' column='1' id='2af4292a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ac' type-id='52bea74f' visibility='default' filepath='include/linux/transport_class.h' line='57' column='1'/>
@@ -19282,6 +19304,7 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='fb4943b2' size-in-bits='64' id='2c556848'/>
+      <pointer-type-def type-id='b6caa30a' size-in-bits='64' id='2c5bcc28'/>
       <pointer-type-def type-id='8d077d91' size-in-bits='64' id='2c5f769d'/>
       <pointer-type-def type-id='92920004' size-in-bits='64' id='2c6d11fe'/>
       <union-decl name='phy_configure_opts' size-in-bits='896' visibility='default' filepath='include/linux/phy/phy.h' line='55' column='1' id='2c7a2d9f'>
@@ -24370,6 +24393,7 @@
         <parameter type-id='b548c585'/>
         <return type-id='95e97e5e'/>
       </function-type>
+      <pointer-type-def type-id='d38c200b' size-in-bits='64' id='3bdbc3eb'/>
       <typedef-decl name='kiocb_cancel_fn' type-id='5f9b036f' filepath='include/linux/aio.h' line='11' column='1' id='3bdd01dc'/>
       <qualified-type-def type-id='8efea9e5' const='yes' id='3beb2af4'/>
       <class-decl name='pm_domain_data' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/linux/pm_domain.h' line='189' column='1' id='3bf19710'>
@@ -26879,7 +26903,7 @@
           <var-decl name='count' type-id='f0981eeb' visibility='default' filepath='include/net/inet_hashtables.h' line='114' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='' type-id='ac5ab65f' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1'/>
+          <var-decl name='' type-id='ac5ab65d' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='df587ad7' size-in-bits='64' id='42bc911b'/>
@@ -42254,7 +42278,7 @@
           <var-decl name='rt_gw_family' type-id='f9b06939' visibility='default' filepath='include/net/route.h' line='60' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1056'>
-          <var-decl name='' type-id='ac5ab65e' visibility='default' filepath='include/net/route.h' line='62' column='1'/>
+          <var-decl name='' type-id='ac5ab65f' visibility='default' filepath='include/net/route.h' line='62' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1184'>
           <var-decl name='rt_mtu_locked' type-id='19c2251e' visibility='default' filepath='include/net/route.h' line='68' column='1'/>
@@ -47417,6 +47441,20 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='13be8ab4' size-in-bits='64' id='7a89a746'/>
+      <class-decl name='interval_tree_node' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/linux/interval_tree.h' line='7' column='1' id='7a8b9f02'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='rb' type-id='2a8a6332' visibility='default' filepath='include/linux/interval_tree.h' line='8' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='start' type-id='7359adad' visibility='default' filepath='include/linux/interval_tree.h' line='9' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='last' type-id='7359adad' visibility='default' filepath='include/linux/interval_tree.h' line='10' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='320'>
+          <var-decl name='__subtree_last' type-id='7359adad' visibility='default' filepath='include/linux/interval_tree.h' line='11' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='56a7b834' size-in-bits='64' id='7aa5a21e'/>
       <pointer-type-def type-id='68b6a809' size-in-bits='64' id='7ac48c21'/>
       <function-type size-in-bits='64' id='7ac88bec'>
@@ -58048,6 +58086,9 @@
         <parameter type-id='78c01427'/>
         <return type-id='95e97e5e'/>
       </function-type>
+      <array-type-def dimensions='1' type-id='95e97e5e' size-in-bits='2048' id='93e41790'>
+        <subrange length='64' type-id='7ff19f0f' id='b10be967'/>
+      </array-type-def>
       <array-type-def dimensions='1' type-id='3b0abfc6' size-in-bits='768' id='93f82aba'>
         <subrange length='6' type-id='7ff19f0f' id='52fa524b'/>
       </array-type-def>
@@ -58816,6 +58857,10 @@
         <parameter type-id='27675065'/>
         <return type-id='95e97e5e'/>
       </function-type>
+      <function-type size-in-bits='64' id='9666e837'>
+        <parameter type-id='e884daa5'/>
+        <return type-id='95e97e5e'/>
+      </function-type>
       <pointer-type-def type-id='f519d7ec' size-in-bits='64' id='966724ce'/>
       <pointer-type-def type-id='9f5a4f22' size-in-bits='64' id='9682fd8c'/>
       <pointer-type-def type-id='699ab992' size-in-bits='64' id='96846df4'/>
@@ -60131,7 +60176,20 @@
           <var-decl name='private_value' type-id='7359adad' visibility='default' filepath='include/sound/control.h' line='56' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='udp_table' is-struct='yes' visibility='default' is-declaration-only='yes' id='9a516b13'/>
+      <class-decl name='udp_table' size-in-bits='192' is-struct='yes' visibility='default' filepath='include/net/udp.h' line='72' column='1' id='9a516b13'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='hash' type-id='9cc41107' visibility='default' filepath='include/net/udp.h' line='73' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='hash2' type-id='9cc41107' visibility='default' filepath='include/net/udp.h' line='74' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='mask' type-id='f0981eeb' visibility='default' filepath='include/net/udp.h' line='75' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='160'>
+          <var-decl name='log' type-id='f0981eeb' visibility='default' filepath='include/net/udp.h' line='76' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='6661a698' size-in-bits='64' id='9a537bbe'/>
       <function-type size-in-bits='64' id='9a54e634'>
         <parameter type-id='8898134d'/>
@@ -60854,6 +60912,7 @@
       <array-type-def dimensions='1' type-id='00205383' size-in-bits='3072' id='9cc39ce1'>
         <subrange length='24' type-id='7ff19f0f' id='fdd3342b'/>
       </array-type-def>
+      <pointer-type-def type-id='fa07ab8f' size-in-bits='64' id='9cc41107'/>
       <class-decl name='snd_kcontrol_volatile' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/sound/control.h' line='59' column='1' id='9cd807f4'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='owner' type-id='ed27ccc9' visibility='default' filepath='include/sound/control.h' line='60' column='1'/>
@@ -61008,6 +61067,7 @@
           <var-decl name='device_release' type-id='8e91ceac' visibility='default' filepath='include/linux/of_reserved_mem.h' line='24' column='1'/>
         </data-member>
       </class-decl>
+      <pointer-type-def type-id='c0a7be7f' size-in-bits='64' id='9d109fcf'/>
       <pointer-type-def type-id='77e739eb' size-in-bits='64' id='9d11a2ef'/>
       <pointer-type-def type-id='b545ce08' size-in-bits='64' id='9d1360ce'/>
       <pointer-type-def type-id='23e41d37' size-in-bits='64' id='9d19d4a7'/>
@@ -61777,6 +61837,7 @@
           <var-decl name='pgdat' type-id='c876a7a5' visibility='default' filepath='include/linux/mmzone.h' line='296' column='1'/>
         </data-member>
       </class-decl>
+      <pointer-type-def type-id='6fe1603d' size-in-bits='64' id='9e8dca7d'/>
       <array-type-def dimensions='1' type-id='95e97e5e' size-in-bits='1024' id='9e942f0d'>
         <subrange length='32' type-id='7ff19f0f' id='ae5bde82'/>
       </array-type-def>
@@ -66361,7 +66422,23 @@
         <return type-id='eaa32e2f'/>
       </function-type>
       <pointer-type-def type-id='e38bdef8' size-in-bits='64' id='ab38066e'/>
-      <class-decl name='bpf_local_storage' is-struct='yes' visibility='default' is-declaration-only='yes' id='ab3ad981'/>
+      <class-decl name='bpf_local_storage' size-in-bits='1344' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='80' column='1' id='ab3ad981'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='cache' type-id='da6f4a25' visibility='default' filepath='include/linux/bpf_local_storage.h' line='81' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1024'>
+          <var-decl name='list' type-id='e151255a' visibility='default' filepath='include/linux/bpf_local_storage.h' line='82' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1088'>
+          <var-decl name='owner' type-id='eaa32e2f' visibility='default' filepath='include/linux/bpf_local_storage.h' line='83' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1152'>
+          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/bpf_local_storage.h' line='86' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1280'>
+          <var-decl name='lock' type-id='f5c90b3f' visibility='default' filepath='include/linux/bpf_local_storage.h' line='87' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='ebf04e7b' size-in-bits='64' id='ab3c35df'/>
       <pointer-type-def type-id='7f60130d' size-in-bits='64' id='ab3e2665'/>
       <class-decl name='ufs_clk_scaling' size-in-bits='1792' is-struct='yes' visibility='default' filepath='drivers/scsi/ufs/ufshcd.h' line='440' column='1' id='ab4dad02'>
@@ -68835,28 +68912,28 @@
           <var-decl name='nh_grp' type-id='c5ff416f' visibility='default' filepath='include/net/nexthop.h' line='103' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65d'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1' id='ac5ab65d'>
         <data-member access='public'>
-          <var-decl name='ipv4' type-id='78a133c2' visibility='default' filepath='include/net/ip_fib.h' line='90' column='1'/>
+          <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/inet_hashtables.h' line='116' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='ipv6' type-id='f6ed712a' visibility='default' filepath='include/net/ip_fib.h' line='91' column='1'/>
+          <var-decl name='nulls_head' type-id='af86905d' visibility='default' filepath='include/net/inet_hashtables.h' line='117' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65e'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65e'>
         <data-member access='public'>
-          <var-decl name='rt_gw4' type-id='78a133c2' visibility='default' filepath='include/net/route.h' line='63' column='1'/>
+          <var-decl name='ipv4' type-id='78a133c2' visibility='default' filepath='include/net/ip_fib.h' line='90' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='rt_gw6' type-id='f6ed712a' visibility='default' filepath='include/net/route.h' line='64' column='1'/>
+          <var-decl name='ipv6' type-id='f6ed712a' visibility='default' filepath='include/net/ip_fib.h' line='91' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1' id='ac5ab65f'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65f'>
         <data-member access='public'>
-          <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/inet_hashtables.h' line='116' column='1'/>
+          <var-decl name='rt_gw4' type-id='78a133c2' visibility='default' filepath='include/net/route.h' line='63' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='nulls_head' type-id='af86905d' visibility='default' filepath='include/net/inet_hashtables.h' line='117' column='1'/>
+          <var-decl name='rt_gw6' type-id='f6ed712a' visibility='default' filepath='include/net/route.h' line='64' column='1'/>
         </data-member>
       </union-decl>
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@@ -69136,7 +69213,11 @@
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       <pointer-type-def type-id='49a0ad34' size-in-bits='64' id='ac6963b2'/>
-      <class-decl name='prot_inuse' is-struct='yes' visibility='default' is-declaration-only='yes' id='ac763c5d'/>
+      <class-decl name='prot_inuse' size-in-bits='2048' is-struct='yes' visibility='default' filepath='net/core/sock.c' line='3328' column='1' id='ac763c5d'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='val' type-id='93e41790' visibility='default' filepath='net/core/sock.c' line='3329' column='1'/>
+        </data-member>
+      </class-decl>
       <class-decl name='reset_control_ops' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/reset-controller.h' line='18' column='1' id='ac76d92d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='reset' type-id='c637b701' visibility='default' filepath='include/linux/reset-controller.h' line='19' column='1'/>
@@ -70913,6 +70994,41 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='405001ce' size-in-bits='64' id='b104e6b0'/>
+      <class-decl name='platform_suspend_ops' size-in-bits='704' is-struct='yes' visibility='default' filepath='include/linux/suspend.h' line='178' column='1' id='b106e24e'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='valid' type-id='16d5931b' visibility='default' filepath='include/linux/suspend.h' line='179' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='begin' type-id='16d5931b' visibility='default' filepath='include/linux/suspend.h' line='180' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='prepare' type-id='1db260e5' visibility='default' filepath='include/linux/suspend.h' line='181' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='prepare_late' type-id='1db260e5' visibility='default' filepath='include/linux/suspend.h' line='182' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='enter' type-id='16d5931b' visibility='default' filepath='include/linux/suspend.h' line='183' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='320'>
+          <var-decl name='wake' type-id='953b12f8' visibility='default' filepath='include/linux/suspend.h' line='184' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='384'>
+          <var-decl name='finish' type-id='953b12f8' visibility='default' filepath='include/linux/suspend.h' line='185' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='448'>
+          <var-decl name='suspend_again' type-id='d4ae3f3f' visibility='default' filepath='include/linux/suspend.h' line='186' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='512'>
+          <var-decl name='end' type-id='953b12f8' visibility='default' filepath='include/linux/suspend.h' line='187' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='576'>
+          <var-decl name='recover' type-id='953b12f8' visibility='default' filepath='include/linux/suspend.h' line='188' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='640'>
+          <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/suspend.h' line='190' column='1'/>
+        </data-member>
+      </class-decl>
       <class-decl name='mini_Qdisc' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/net/sch_generic.h' line='1313' column='1' id='b10d582f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='filter_list' type-id='6dca061b' visibility='default' filepath='include/net/sch_generic.h' line='1314' column='1'/>
@@ -73176,6 +73292,14 @@
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       <pointer-type-def type-id='537afa70' size-in-bits='64' id='b6c6c0b9'/>
+      <class-decl name='bpf_local_storage_data' size-in-bits='64' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='56' column='1' id='b6caa30a'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='smap' type-id='ac2666b2' visibility='default' filepath='include/linux/bpf_local_storage.h' line='63' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='data' type-id='29c3368c' visibility='default' filepath='include/linux/bpf_local_storage.h' line='64' column='1'/>
+        </data-member>
+      </class-decl>
       <array-type-def dimensions='1' type-id='002ac4a6' size-in-bits='4096' id='b6d05418'>
         <subrange length='512' type-id='7ff19f0f' id='c11630dd'/>
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@@ -77934,6 +78058,7 @@
       <pointer-type-def type-id='1ca1bfac' size-in-bits='64' id='c0a08bbe'/>
       <pointer-type-def type-id='9d558819' size-in-bits='64' id='c0a3faf5'/>
       <pointer-type-def type-id='01e6a0f2' size-in-bits='64' id='c0a50b50'/>
+      <qualified-type-def type-id='b106e24e' const='yes' id='c0a7be7f'/>
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         <parameter type-id='68a2d05b'/>
         <parameter type-id='68a2d05b'/>
@@ -80997,6 +81122,7 @@
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         <subrange length='2' type-id='7ff19f0f' id='52efc4ef'/>
       </array-type-def>
+      <pointer-type-def type-id='7a8b9f02' size-in-bits='64' id='c7ea70e0'/>
       <class-decl name='radix_tree_iter' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/radix-tree.h' line='104' column='1' id='c7ead0f9'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='index' type-id='7359adad' visibility='default' filepath='include/linux/radix-tree.h' line='105' column='1'/>
@@ -84843,6 +84969,14 @@
           <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/linux/usb/typec.h' line='219' column='1'/>
         </data-member>
       </class-decl>
+      <class-decl name='bpf_local_storage_map_bucket' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/bpf_local_storage.h' line='19' column='1' id='d38c200b'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='list' type-id='e151255a' visibility='default' filepath='include/linux/bpf_local_storage.h' line='20' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='lock' type-id='f5c90b3f' visibility='default' filepath='include/linux/bpf_local_storage.h' line='21' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='c0342c43' size-in-bits='64' id='d38eb863'/>
       <class-decl name='xarray' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/linux/xarray.h' line='292' column='1' id='d39738ac'>
         <data-member access='public' layout-offset-in-bits='0'>
@@ -87432,6 +87566,9 @@
       <array-type-def dimensions='1' type-id='094d8048' size-in-bits='infinite' id='da6e2919'>
         <subrange length='infinite' type-id='7ff19f0f' id='031f2035'/>
       </array-type-def>
+      <array-type-def dimensions='1' type-id='2c5bcc28' size-in-bits='1024' id='da6f4a25'>
+        <subrange length='16' type-id='7ff19f0f' id='848d0938'/>
+      </array-type-def>
       <function-type size-in-bits='64' id='da73ead4'>
         <parameter type-id='77e79a4b'/>
         <parameter type-id='f57039f0'/>
@@ -91064,7 +91201,7 @@
           <var-decl name='nhc_lwtstate' type-id='d19f4fca' visibility='default' filepath='include/net/ip_fib.h' line='87' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='nhc_gw' type-id='ac5ab65d' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
+          <var-decl name='nhc_gw' type-id='ac5ab65e' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='320'>
           <var-decl name='nhc_weight' type-id='95e97e5e' visibility='default' filepath='include/net/ip_fib.h' line='94' column='1'/>
@@ -102602,6 +102739,17 @@
         </data-member>
       </class-decl>
       <pointer-type-def type-id='91f77fa3' size-in-bits='64' id='fa058983'/>
+      <class-decl name='udp_hslot' size-in-bits='128' is-struct='yes' visibility='default' filepath='include/net/udp.h' line='58' column='1' id='fa07ab8f'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='head' type-id='e151255a' visibility='default' filepath='include/net/udp.h' line='59' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='count' type-id='95e97e5e' visibility='default' filepath='include/net/udp.h' line='60' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='96'>
+          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/net/udp.h' line='61' column='1'/>
+        </data-member>
+      </class-decl>
       <array-type-def dimensions='2' type-id='8f048e17' size-in-bits='304' id='fa0a1f4c'>
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@@ -105054,11 +105202,11 @@
         <parameter type-id='95e97e5e' name='node_id' filepath='block/genhd.c' line='1715' column='1'/>
         <return type-id='33c599da'/>
       </function-decl>
-      <function-decl name='__alloc_pages_nodemask' mangled-name='__alloc_pages_nodemask' filepath='mm/page_alloc.c' line='5125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_pages_nodemask'>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5125' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5125' column='1'/>
-        <parameter type-id='95e97e5e' name='preferred_nid' filepath='mm/page_alloc.c' line='5125' column='1'/>
-        <parameter type-id='f461c050' name='nodemask' filepath='mm/page_alloc.c' line='5126' column='1'/>
+      <function-decl name='__alloc_pages_nodemask' mangled-name='__alloc_pages_nodemask' filepath='mm/page_alloc.c' line='5126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_pages_nodemask'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5126' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5126' column='1'/>
+        <parameter type-id='95e97e5e' name='preferred_nid' filepath='mm/page_alloc.c' line='5126' column='1'/>
+        <parameter type-id='f461c050' name='nodemask' filepath='mm/page_alloc.c' line='5127' column='1'/>
         <return type-id='02f11ed4'/>
       </function-decl>
       <function-decl name='__alloc_percpu' mangled-name='__alloc_percpu' filepath='mm/percpu.c' line='1904' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__alloc_percpu'>
@@ -105503,14 +105651,14 @@
         <parameter type-id='f0981eeb' name='fd' filepath='fs/file.c' line='994' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='__free_pages' mangled-name='__free_pages' filepath='mm/page_alloc.c' line='5218' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__free_pages'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5218' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5218' column='1'/>
+      <function-decl name='__free_pages' mangled-name='__free_pages' filepath='mm/page_alloc.c' line='5219' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__free_pages'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5219' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5219' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='__get_free_pages' mangled-name='__get_free_pages' filepath='mm/page_alloc.c' line='5193' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_free_pages'>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5193' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5193' column='1'/>
+      <function-decl name='__get_free_pages' mangled-name='__get_free_pages' filepath='mm/page_alloc.c' line='5194' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_free_pages'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5194' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5194' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='__get_task_comm' mangled-name='__get_task_comm' filepath='fs/exec.c' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_task_comm'>
@@ -105860,9 +106008,9 @@
         <parameter type-id='b50a4934' name='acquired' filepath='drivers/reset/core.c' line='607' column='1'/>
         <return type-id='9f9b8114'/>
       </function-decl>
-      <function-decl name='__page_frag_cache_drain' mangled-name='__page_frag_cache_drain' filepath='mm/page_alloc.c' line='5270' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_frag_cache_drain'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5270' column='1'/>
-        <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5270' column='1'/>
+      <function-decl name='__page_frag_cache_drain' mangled-name='__page_frag_cache_drain' filepath='mm/page_alloc.c' line='5271' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_frag_cache_drain'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='5271' column='1'/>
+        <parameter type-id='f0981eeb' name='count' filepath='mm/page_alloc.c' line='5271' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='__page_pinner_put_page' mangled-name='__page_pinner_put_page' filepath='mm/page_pinner.c' line='273' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__page_pinner_put_page'>
@@ -107286,9 +107434,9 @@
         <parameter type-id='db9d03e3' name='wq_entry' filepath='kernel/sched/wait.c' line='19' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='adjust_managed_page_count' mangled-name='adjust_managed_page_count' filepath='mm/page_alloc.c' line='7799' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='adjust_managed_page_count'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='7799' column='1'/>
-        <parameter type-id='bd54fe1a' name='count' filepath='mm/page_alloc.c' line='7799' column='1'/>
+      <function-decl name='adjust_managed_page_count' mangled-name='adjust_managed_page_count' filepath='mm/page_alloc.c' line='7800' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='adjust_managed_page_count'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='7800' column='1'/>
+        <parameter type-id='bd54fe1a' name='count' filepath='mm/page_alloc.c' line='7800' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='aead_register_instance' mangled-name='aead_register_instance' filepath='crypto/aead.c' line='286' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='aead_register_instance'>
@@ -107384,9 +107532,9 @@
         <parameter type-id='f0981eeb' name='rxqs' filepath='net/core/dev.c' line='10568' column='1'/>
         <return type-id='68a2d05b'/>
       </function-decl>
-      <function-decl name='alloc_pages_exact' mangled-name='alloc_pages_exact' filepath='mm/page_alloc.c' line='5381' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_pages_exact'>
-        <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='5381' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5381' column='1'/>
+      <function-decl name='alloc_pages_exact' mangled-name='alloc_pages_exact' filepath='mm/page_alloc.c' line='5382' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_pages_exact'>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='5382' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5382' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='alloc_skb_with_frags' mangled-name='alloc_skb_with_frags' filepath='net/core/skbuff.c' line='5865' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='alloc_skb_with_frags'>
@@ -113533,14 +113681,14 @@
         <parameter type-id='68a2d05b' name='dev' filepath='net/core/dev.c' line='10684' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_pages' mangled-name='free_pages' filepath='mm/page_alloc.c' line='5228' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages'>
-        <parameter type-id='7359adad' name='addr' filepath='mm/page_alloc.c' line='5228' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5228' column='1'/>
+      <function-decl name='free_pages' mangled-name='free_pages' filepath='mm/page_alloc.c' line='5229' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages'>
+        <parameter type-id='7359adad' name='addr' filepath='mm/page_alloc.c' line='5229' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5229' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='free_pages_exact' mangled-name='free_pages_exact' filepath='mm/page_alloc.c' line='5427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages_exact'>
-        <parameter type-id='eaa32e2f' name='virt' filepath='mm/page_alloc.c' line='5427' column='1'/>
-        <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='5427' column='1'/>
+      <function-decl name='free_pages_exact' mangled-name='free_pages_exact' filepath='mm/page_alloc.c' line='5428' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_pages_exact'>
+        <parameter type-id='eaa32e2f' name='virt' filepath='mm/page_alloc.c' line='5428' column='1'/>
+        <parameter type-id='b59d7dce' name='size' filepath='mm/page_alloc.c' line='5428' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='free_percpu' mangled-name='free_percpu' filepath='mm/percpu.c' line='2080' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='free_percpu'>
@@ -113875,8 +114023,8 @@
         <parameter type-id='d9fbdc06' name='vec' filepath='mm/frame_vector.c' line='35' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_zeroed_page' mangled-name='get_zeroed_page' filepath='mm/page_alloc.c' line='5204' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_zeroed_page'>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5204' column='1'/>
+      <function-decl name='get_zeroed_page' mangled-name='get_zeroed_page' filepath='mm/page_alloc.c' line='5205' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_zeroed_page'>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5205' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
       <function-decl name='gether_cleanup' mangled-name='gether_cleanup' filepath='drivers/usb/gadget/function/u_ether.c' line='1049' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='gether_cleanup'>
@@ -115232,6 +115380,28 @@
         <parameter type-id='a9aa3e2b' name='scsilun' filepath='drivers/scsi/scsi_common.c' line='105' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
+      <function-decl name='interval_tree_insert' mangled-name='interval_tree_insert' filepath='lib/interval_tree.c' line='10' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='interval_tree_insert'>
+        <parameter type-id='c7ea70e0' name='node' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <parameter type-id='9e8dca7d' name='root' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
+      <function-decl name='interval_tree_iter_first' mangled-name='interval_tree_iter_first' filepath='lib/interval_tree.c' line='10' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='interval_tree_iter_first'>
+        <parameter type-id='9e8dca7d' name='root' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <parameter type-id='7359adad' name='last' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <return type-id='c7ea70e0'/>
+      </function-decl>
+      <function-decl name='interval_tree_iter_next' mangled-name='interval_tree_iter_next' filepath='lib/interval_tree.c' line='10' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='interval_tree_iter_next'>
+        <parameter type-id='c7ea70e0' name='node' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <parameter type-id='7359adad' name='last' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <return type-id='c7ea70e0'/>
+      </function-decl>
+      <function-decl name='interval_tree_remove' mangled-name='interval_tree_remove' filepath='lib/interval_tree.c' line='10' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='interval_tree_remove'>
+        <parameter type-id='c7ea70e0' name='node' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <parameter type-id='9e8dca7d' name='root' filepath='lib/interval_tree.c' line='10' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
       <function-decl name='invalidate_mapping_pages' mangled-name='invalidate_mapping_pages' filepath='mm/truncate.c' line='629' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='invalidate_mapping_pages'>
         <parameter type-id='f57039f0' name='mapping' filepath='mm/truncate.c' line='629' column='1'/>
         <parameter type-id='7359adad' name='start' filepath='mm/truncate.c' line='630' column='1'/>
@@ -117755,14 +117925,14 @@
         <parameter type-id='95e97e5e' name='err' filepath='mm/filemap.c' line='1516' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='page_frag_alloc' mangled-name='page_frag_alloc' filepath='mm/page_alloc.c' line='5279' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_alloc'>
-        <parameter type-id='34e4f518' name='nc' filepath='mm/page_alloc.c' line='5279' column='1'/>
-        <parameter type-id='f0981eeb' name='fragsz' filepath='mm/page_alloc.c' line='5280' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5280' column='1'/>
+      <function-decl name='page_frag_alloc' mangled-name='page_frag_alloc' filepath='mm/page_alloc.c' line='5280' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_alloc'>
+        <parameter type-id='34e4f518' name='nc' filepath='mm/page_alloc.c' line='5280' column='1'/>
+        <parameter type-id='f0981eeb' name='fragsz' filepath='mm/page_alloc.c' line='5281' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp_mask' filepath='mm/page_alloc.c' line='5281' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='page_frag_free' mangled-name='page_frag_free' filepath='mm/page_alloc.c' line='5341' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_free'>
-        <parameter type-id='eaa32e2f' name='addr' filepath='mm/page_alloc.c' line='5341' column='1'/>
+      <function-decl name='page_frag_free' mangled-name='page_frag_free' filepath='mm/page_alloc.c' line='5342' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_frag_free'>
+        <parameter type-id='eaa32e2f' name='addr' filepath='mm/page_alloc.c' line='5342' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='page_mapping' mangled-name='page_mapping' filepath='mm/util.c' line='688' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='page_mapping'>
@@ -121641,9 +121811,9 @@
         <parameter type-id='f22e4524' name='ctlr' filepath='drivers/spi/spi.c' line='2873' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='split_page' mangled-name='split_page' filepath='mm/page_alloc.c' line='3439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='split_page'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='3439' column='1'/>
-        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='3439' column='1'/>
+      <function-decl name='split_page' mangled-name='split_page' filepath='mm/page_alloc.c' line='3440' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='split_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/page_alloc.c' line='3440' column='1'/>
+        <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='3440' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='spmi_controller_add' mangled-name='spmi_controller_add' filepath='drivers/spmi/spmi.c' line='508' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='spmi_controller_add'>
@@ -121898,6 +122068,10 @@
         <parameter type-id='c97de1ac' name='groups' filepath='drivers/base/bus.c' line='1158' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='suspend_set_ops' mangled-name='suspend_set_ops' filepath='kernel/power/suspend.c' line='203' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='suspend_set_ops'>
+        <parameter type-id='9d109fcf' name='ops' filepath='kernel/power/suspend.c' line='203' column='1'/>
+        <return type-id='48b5725f'/>
+      </function-decl>
       <function-decl name='sync_file_create' mangled-name='sync_file_create' filepath='drivers/dma-buf/sync_file.c' line='64' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sync_file_create'>
         <parameter type-id='28271da3' name='fence' filepath='drivers/dma-buf/sync_file.c' line='64' column='1'/>
         <return type-id='6a6b0b01'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 059afeaff4241..adfda5c2916c2 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1059,6 +1059,10 @@
   input_unregister_device
   input_unregister_handle
   input_unregister_handler
+  interval_tree_insert
+  interval_tree_iter_first
+  interval_tree_iter_next
+  interval_tree_remove
   int_sqrt
   int_to_scsilun
   iomem_resource
@@ -1446,6 +1450,7 @@
   __page_frag_cache_drain
   page_frag_free
   page_mapping
+  __page_pinner_put_page
   panic
   panic_notifier_list
   param_array_ops
@@ -2074,6 +2079,7 @@
   submit_bio
   submit_bio_wait
   subsys_system_register
+  suspend_set_ops
   __sw_hweight32
   __sw_hweight64
   sync_file_create
-- 
GitLab


From 75020bfbe2a57e5bddcd094bc4afa72ba81ceb70 Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Thu, 14 Apr 2022 14:18:25 -0700
Subject: [PATCH 4705/4878] ANDROID: Move BRANCH from build.config.common to
 .constants.

This allows Bazel to load the value of $BRANCH in order
to determine the value of --dist_dir of copy_to_dist_dir
statically.

Test: TH
Bug: 229268271

Change-Id: Iff759b8188360ea1b2bc204d29750eece9095582
Signed-off-by: Yifan Hong <elsk@google.com>
---
 build.config.common    | 1 -
 build.config.constants | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.common b/build.config.common
index 12e9622e57442..ef32b2235580e 100644
--- a/build.config.common
+++ b/build.config.common
@@ -1,6 +1,5 @@
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.constants
 
-BRANCH=android13-5.10
 KMI_GENERATION=3
 
 LLVM=1
diff --git a/build.config.constants b/build.config.constants
index eea6186b0126d..c4f41fec703b7 100644
--- a/build.config.constants
+++ b/build.config.constants
@@ -1 +1,2 @@
+BRANCH=android13-5.10
 CLANG_VERSION=r450784b
-- 
GitLab


From 885e11e970bab079d335cf7cbc49db46ca5b25c1 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Mon, 13 Jul 2020 11:37:30 -0600
Subject: [PATCH 4706/4878] BACKPORT: mm/vmscan.c: use add_page_to_lru_list()

Patch series "mm: lru related cleanups", v2.

The cleanups are intended to reduce the verbosity in lru list operations
and make them less error-prone.  A typical example would be how the
patches change __activate_page():

 static void __activate_page(struct page *page, struct lruvec *lruvec)
 {
 	if (!PageActive(page) && !PageUnevictable(page)) {
-		int lru = page_lru_base_type(page);
 		int nr_pages = thp_nr_pages(page);

-		del_page_from_lru_list(page, lruvec, lru);
+		del_page_from_lru_list(page, lruvec);
 		SetPageActive(page);
-		lru += LRU_ACTIVE;
-		add_page_to_lru_list(page, lruvec, lru);
+		add_page_to_lru_list(page, lruvec);
 		trace_mm_lru_activate(page);

There are a few more places like __activate_page() and they are
unnecessarily repetitive in terms of figuring out which list a page should
be added onto or deleted from.  And with the duplicated code removed, they
are easier to read, IMO.

Patch 1 to 5 basically cover the above.  Patch 6 and 7 make code more
robust by improving bug reporting.  Patch 8, 9 and 10 take care of some
dangling helpers left in header files.

This patch (of 10):

There is add_page_to_lru_list(), and move_pages_to_lru() should reuse it,
not duplicate it.

Link: https://lkml.kernel.org/r/20210122220600.906146-1-yuzhao@google.com
Link: https://lore.kernel.org/linux-mm/20201207220949.830352-2-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-2-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 42895ea73bcd37c4a79e4c9f681ab8b82243c7f7)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I7e09be6bedcd451c4e8c790c969306b6ca3adebd
---
 mm/vmscan.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index d49cd9cb79e0e..57476780585a6 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1917,8 +1917,8 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 	while (!list_empty(list)) {
 		page = lru_to_page(list);
 		VM_BUG_ON_PAGE(PageLRU(page), page);
+		list_del(&page->lru);
 		if (unlikely(!page_evictable(page))) {
-			list_del(&page->lru);
 			spin_unlock_irq(&pgdat->lru_lock);
 			putback_lru_page(page);
 			spin_lock_irq(&pgdat->lru_lock);
@@ -1928,10 +1928,7 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 
 		SetPageLRU(page);
 		lru = page_lru(page);
-
-		nr_pages = thp_nr_pages(page);
-		update_lru_size(lruvec, lru, page_zonenum(page), nr_pages);
-		list_move(&page->lru, &lruvec->lists[lru]);
+		add_page_to_lru_list(page, lruvec, lru);
 
 		if (put_page_testzero(page)) {
 			__ClearPageLRU(page);
@@ -1945,6 +1942,7 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 			} else
 				list_add(&page->lru, &pages_to_free);
 		} else {
+			nr_pages = thp_nr_pages(page);
 			nr_moved += nr_pages;
 			if (PageActive(page))
 				workingset_age_nonresident(lruvec, nr_pages);
-- 
GitLab


From 32ebee43825256212cb157a9ff380018d1aa7eca Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:08:13 -0800
Subject: [PATCH 4707/4878] BACKPORT: include/linux/mm_inline.h: shuffle lru
 list addition and deletion functions

These functions will call page_lru() in the following patches.  Move them
below page_lru() to avoid the forward declaration.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-3-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-3-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f90d8191ac864df33b1898bc7edc54eaa24e22bc)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I32b8565107c9134e656b43886c00105eb07b34dd
---
 include/linux/mm_inline.h | 42 +++++++++++++++++++--------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index de031b0f1aec2..e2fe1f0cd869d 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -46,27 +46,6 @@ static __always_inline void update_lru_size(struct lruvec *lruvec,
 #endif
 }
 
-static __always_inline void add_page_to_lru_list(struct page *page,
-				struct lruvec *lruvec, enum lru_list lru)
-{
-	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
-	list_add(&page->lru, &lruvec->lists[lru]);
-}
-
-static __always_inline void add_page_to_lru_list_tail(struct page *page,
-				struct lruvec *lruvec, enum lru_list lru)
-{
-	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
-	list_add_tail(&page->lru, &lruvec->lists[lru]);
-}
-
-static __always_inline void del_page_from_lru_list(struct page *page,
-				struct lruvec *lruvec, enum lru_list lru)
-{
-	list_del(&page->lru);
-	update_lru_size(lruvec, lru, page_zonenum(page), -thp_nr_pages(page));
-}
-
 /**
  * page_lru_base_type - which LRU list type should a page be on?
  * @page: the page to test
@@ -127,6 +106,27 @@ static __always_inline enum lru_list page_lru(struct page *page)
 	return lru;
 }
 
+static __always_inline void add_page_to_lru_list(struct page *page,
+				struct lruvec *lruvec, enum lru_list lru)
+{
+	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
+	list_add(&page->lru, &lruvec->lists[lru]);
+}
+
+static __always_inline void add_page_to_lru_list_tail(struct page *page,
+				struct lruvec *lruvec, enum lru_list lru)
+{
+	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
+	list_add_tail(&page->lru, &lruvec->lists[lru]);
+}
+
+static __always_inline void del_page_from_lru_list(struct page *page,
+				struct lruvec *lruvec, enum lru_list lru)
+{
+	list_del(&page->lru);
+	update_lru_size(lruvec, lru, page_zonenum(page), -thp_nr_pages(page));
+}
+
 #ifdef CONFIG_ANON_VMA_NAME
 /*
  * mmap_lock should be read-locked when calling anon_vma_name(). Caller should
-- 
GitLab


From c18b4f50cec6c77cd9f2fd271ba89946773a4de2 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:08:17 -0800
Subject: [PATCH 4708/4878] BACKPORT: mm: don't pass "enum lru_list" to lru
 list addition functions

The "enum lru_list" parameter to add_page_to_lru_list() and
add_page_to_lru_list_tail() is redundant in the sense that it can
be extracted from the "struct page" parameter by page_lru().

A caveat is that we need to make sure PageActive() or
PageUnevictable() is correctly set or cleared before calling
these two functions. And they are indeed.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-4-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-4-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 3a9c9788a3149d9745b7eb2eae811e57ef3b127c)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I0d92b845d18e6ab3bcb5645f22e3cedb04257d98
---
 include/linux/mm_inline.h |  8 ++++++--
 mm/swap.c                 | 22 ++++++++++------------
 mm/vmscan.c               |  6 ++----
 3 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index e2fe1f0cd869d..16426bf31f20d 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -107,15 +107,19 @@ static __always_inline enum lru_list page_lru(struct page *page)
 }
 
 static __always_inline void add_page_to_lru_list(struct page *page,
-				struct lruvec *lruvec, enum lru_list lru)
+				struct lruvec *lruvec)
 {
+	enum lru_list lru = page_lru(page);
+
 	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
 	list_add(&page->lru, &lruvec->lists[lru]);
 }
 
 static __always_inline void add_page_to_lru_list_tail(struct page *page,
-				struct lruvec *lruvec, enum lru_list lru)
+				struct lruvec *lruvec)
 {
+	enum lru_list lru = page_lru(page);
+
 	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
 	list_add_tail(&page->lru, &lruvec->lists[lru]);
 }
diff --git a/mm/swap.c b/mm/swap.c
index 8d5c61de5a6eb..4e618f3bb05aa 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -242,7 +242,7 @@ static void pagevec_move_tail_fn(struct page *page, struct lruvec *lruvec,
 	if (PageLRU(page) && !PageUnevictable(page)) {
 		del_page_from_lru_list(page, lruvec, page_lru(page));
 		ClearPageActive(page);
-		add_page_to_lru_list_tail(page, lruvec, page_lru(page));
+		add_page_to_lru_list_tail(page, lruvec);
 		(*pgmoved) += thp_nr_pages(page);
 	}
 }
@@ -338,8 +338,7 @@ static void __activate_page(struct page *page, struct lruvec *lruvec,
 
 		del_page_from_lru_list(page, lruvec, lru);
 		SetPageActive(page);
-		lru += LRU_ACTIVE;
-		add_page_to_lru_list(page, lruvec, lru);
+		add_page_to_lru_list(page, lruvec);
 		trace_mm_lru_activate(page);
 
 		__count_vm_events(PGACTIVATE, nr_pages);
@@ -569,14 +568,14 @@ static void lru_deactivate_file_fn(struct page *page, struct lruvec *lruvec,
 		 * It can make readahead confusing.  But race window
 		 * is _really_ small and  it's non-critical problem.
 		 */
-		add_page_to_lru_list(page, lruvec, lru);
+		add_page_to_lru_list(page, lruvec);
 		SetPageReclaim(page);
 	} else {
 		/*
 		 * The page's writeback ends up during pagevec
 		 * We moves tha page into tail of inactive.
 		 */
-		add_page_to_lru_list_tail(page, lruvec, lru);
+		add_page_to_lru_list_tail(page, lruvec);
 		__count_vm_events(PGROTATED, nr_pages);
 	}
 
@@ -597,7 +596,7 @@ static void lru_deactivate_fn(struct page *page, struct lruvec *lruvec,
 		del_page_from_lru_list(page, lruvec, lru + LRU_ACTIVE);
 		ClearPageActive(page);
 		ClearPageReferenced(page);
-		add_page_to_lru_list(page, lruvec, lru);
+		add_page_to_lru_list(page, lruvec);
 
 		__count_vm_events(PGDEACTIVATE, nr_pages);
 		__count_memcg_events(lruvec_memcg(lruvec), PGDEACTIVATE,
@@ -623,7 +622,7 @@ static void lru_lazyfree_fn(struct page *page, struct lruvec *lruvec,
 		 * anonymous pages
 		 */
 		ClearPageSwapBacked(page);
-		add_page_to_lru_list(page, lruvec, LRU_INACTIVE_FILE);
+		add_page_to_lru_list(page, lruvec);
 
 		__count_vm_events(PGLAZYFREE, nr_pages);
 		__count_memcg_events(lruvec_memcg(lruvec), PGLAZYFREE,
@@ -645,9 +644,9 @@ static void lru_lazyfree_movetail_fn(struct page *page, struct lruvec *lruvec,
 		ClearPageActive(page);
 		ClearPageReferenced(page);
 		if (add_to_tail && *add_to_tail)
-			add_page_to_lru_list_tail(page, lruvec, LRU_INACTIVE_FILE);
+			add_page_to_lru_list_tail(page, lruvec);
 		else
-			add_page_to_lru_list(page, lruvec, LRU_INACTIVE_FILE);
+			add_page_to_lru_list(page, lruvec);
 	}
 }
 
@@ -1117,8 +1116,7 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
 		 * Put page_tail on the list at the correct position
 		 * so they all end up in order.
 		 */
-		add_page_to_lru_list_tail(page_tail, lruvec,
-					  page_lru(page_tail));
+		add_page_to_lru_list_tail(page_tail, lruvec);
 	}
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
@@ -1173,7 +1171,7 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
 			__count_vm_events(UNEVICTABLE_PGCULLED, nr_pages);
 	}
 
-	add_page_to_lru_list(page, lruvec, lru);
+	add_page_to_lru_list(page, lruvec);
 	trace_mm_lru_insertion(page, lru);
 }
 
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 57476780585a6..657158a5db675 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1928,7 +1928,7 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 
 		SetPageLRU(page);
 		lru = page_lru(page);
-		add_page_to_lru_list(page, lruvec, lru);
+		add_page_to_lru_list(page, lruvec);
 
 		if (put_page_testzero(page)) {
 			__ClearPageLRU(page);
@@ -4421,12 +4421,10 @@ void check_move_unevictable_pages(struct pagevec *pvec)
 			continue;
 
 		if (page_evictable(page)) {
-			enum lru_list lru = page_lru_base_type(page);
-
 			VM_BUG_ON_PAGE(PageActive(page), page);
 			ClearPageUnevictable(page);
 			del_page_from_lru_list(page, lruvec, LRU_UNEVICTABLE);
-			add_page_to_lru_list(page, lruvec, lru);
+			add_page_to_lru_list(page, lruvec);
 			pgrescued += nr_pages;
 		}
 	}
-- 
GitLab


From 10899adee36d2b08716f0abbd2d63b2d40e3cd19 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:08:21 -0800
Subject: [PATCH 4709/4878] UPSTREAM: mm/swap.c: don't pass "enum lru_list" to
 trace_mm_lru_insertion()

The parameter is redundant in the sense that it can be extracted
from the "struct page" parameter by page_lru() correctly.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-5-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-5-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 861404536a3af3c39f1b10959a40def3d8efa2dd)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ia02c0c65dd427a98ffa39e9dc3e2ae701e85fad8
---
 include/trace/events/pagemap.h | 11 ++++-------
 mm/swap.c                      |  5 +----
 2 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h
index 8fd1babae761b..e1735fe7c76af 100644
--- a/include/trace/events/pagemap.h
+++ b/include/trace/events/pagemap.h
@@ -27,24 +27,21 @@
 
 TRACE_EVENT(mm_lru_insertion,
 
-	TP_PROTO(
-		struct page *page,
-		int lru
-	),
+	TP_PROTO(struct page *page),
 
-	TP_ARGS(page, lru),
+	TP_ARGS(page),
 
 	TP_STRUCT__entry(
 		__field(struct page *,	page	)
 		__field(unsigned long,	pfn	)
-		__field(int,		lru	)
+		__field(enum lru_list,	lru	)
 		__field(unsigned long,	flags	)
 	),
 
 	TP_fast_assign(
 		__entry->page	= page;
 		__entry->pfn	= page_to_pfn(page);
-		__entry->lru	= lru;
+		__entry->lru	= page_lru(page);
 		__entry->flags	= trace_pagemap_flags(page);
 	),
 
diff --git a/mm/swap.c b/mm/swap.c
index 4e618f3bb05aa..2f9c975f087f9 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -1124,7 +1124,6 @@ void lru_add_page_tail(struct page *page, struct page *page_tail,
 static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
 				 void *arg)
 {
-	enum lru_list lru;
 	int was_unevictable = TestClearPageUnevictable(page);
 	int nr_pages = thp_nr_pages(page);
 
@@ -1160,11 +1159,9 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
 	smp_mb__after_atomic();
 
 	if (page_evictable(page)) {
-		lru = page_lru(page);
 		if (was_unevictable)
 			__count_vm_events(UNEVICTABLE_PGRESCUED, nr_pages);
 	} else {
-		lru = LRU_UNEVICTABLE;
 		ClearPageActive(page);
 		SetPageUnevictable(page);
 		if (!was_unevictable)
@@ -1172,7 +1169,7 @@ static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
 	}
 
 	add_page_to_lru_list(page, lruvec);
-	trace_mm_lru_insertion(page, lru);
+	trace_mm_lru_insertion(page);
 }
 
 /*
-- 
GitLab


From 552f416558737ff048804d252a9727df28a81c14 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:08:25 -0800
Subject: [PATCH 4710/4878] BACKPORT: mm/swap.c: don't pass "enum lru_list" to
 del_page_from_lru_list()

The parameter is redundant in the sense that it can be potentially
extracted from the "struct page" parameter by page_lru(). We need to
make sure that existing PageActive() or PageUnevictable() remains
until the function returns. A few places don't conform, and simple
reordering fixes them.

This patch may have left page_off_lru() seemingly odd, and we'll take
care of it in the next patch.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-6-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-6-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 46ae6b2cc2a47904a368d238425531ea91f3a2a5)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I1e14dcbf4111b39cf155ed3512423448865eb324
---
 include/linux/mm_inline.h |  5 +++--
 mm/compaction.c           |  2 +-
 mm/mlock.c                |  2 +-
 mm/swap.c                 | 31 +++++++++++--------------------
 mm/vmscan.c               |  9 +++------
 5 files changed, 19 insertions(+), 30 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 16426bf31f20d..ad3b71e471db9 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -125,10 +125,11 @@ static __always_inline void add_page_to_lru_list_tail(struct page *page,
 }
 
 static __always_inline void del_page_from_lru_list(struct page *page,
-				struct lruvec *lruvec, enum lru_list lru)
+				struct lruvec *lruvec)
 {
 	list_del(&page->lru);
-	update_lru_size(lruvec, lru, page_zonenum(page), -thp_nr_pages(page));
+	update_lru_size(lruvec, page_lru(page), page_zonenum(page),
+			-thp_nr_pages(page));
 }
 
 #ifdef CONFIG_ANON_VMA_NAME
diff --git a/mm/compaction.c b/mm/compaction.c
index c1a02788282b3..6650f5968f261 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1034,7 +1034,7 @@ isolate_migratepages_block(struct compact_control *cc, unsigned long low_pfn,
 			low_pfn += compound_nr(page) - 1;
 
 		/* Successfully isolated */
-		del_page_from_lru_list(page, lruvec, page_lru(page));
+		del_page_from_lru_list(page, lruvec);
 		mod_node_page_state(page_pgdat(page),
 				NR_ISOLATED_ANON + page_is_file_lru(page),
 				thp_nr_pages(page));
diff --git a/mm/mlock.c b/mm/mlock.c
index ff3f071f7bf0c..49fe3d9ca2846 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -119,7 +119,7 @@ static bool __munlock_isolate_lru_page(struct page *page, bool getpage)
 		if (getpage)
 			get_page(page);
 		ClearPageLRU(page);
-		del_page_from_lru_list(page, lruvec, page_lru(page));
+		del_page_from_lru_list(page, lruvec);
 		return true;
 	}
 
diff --git a/mm/swap.c b/mm/swap.c
index 2f9c975f087f9..2caa601837b04 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -89,7 +89,8 @@ static void __page_cache_release(struct page *page)
 		lruvec = mem_cgroup_page_lruvec(page, pgdat);
 		VM_BUG_ON_PAGE(!PageLRU(page), page);
 		__ClearPageLRU(page);
-		del_page_from_lru_list(page, lruvec, page_off_lru(page));
+		del_page_from_lru_list(page, lruvec);
+		page_off_lru(page);
 		spin_unlock_irqrestore(&pgdat->lru_lock, flags);
 	}
 	__ClearPageWaiters(page);
@@ -240,7 +241,7 @@ static void pagevec_move_tail_fn(struct page *page, struct lruvec *lruvec,
 	int *pgmoved = arg;
 
 	if (PageLRU(page) && !PageUnevictable(page)) {
-		del_page_from_lru_list(page, lruvec, page_lru(page));
+		del_page_from_lru_list(page, lruvec);
 		ClearPageActive(page);
 		add_page_to_lru_list_tail(page, lruvec);
 		(*pgmoved) += thp_nr_pages(page);
@@ -333,10 +334,9 @@ static void __activate_page(struct page *page, struct lruvec *lruvec,
 			    void *arg)
 {
 	if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
-		int lru = page_lru_base_type(page);
 		int nr_pages = thp_nr_pages(page);
 
-		del_page_from_lru_list(page, lruvec, lru);
+		del_page_from_lru_list(page, lruvec);
 		SetPageActive(page);
 		add_page_to_lru_list(page, lruvec);
 		trace_mm_lru_activate(page);
@@ -541,8 +541,7 @@ void __lru_cache_add_inactive_or_unevictable(struct page *page,
 static void lru_deactivate_file_fn(struct page *page, struct lruvec *lruvec,
 			      void *arg)
 {
-	int lru;
-	bool active;
+	bool active = PageActive(page);
 	int nr_pages = thp_nr_pages(page);
 
 	if (!PageLRU(page))
@@ -555,10 +554,7 @@ static void lru_deactivate_file_fn(struct page *page, struct lruvec *lruvec,
 	if (page_mapped(page))
 		return;
 
-	active = PageActive(page);
-	lru = page_lru_base_type(page);
-
-	del_page_from_lru_list(page, lruvec, lru + active);
+	del_page_from_lru_list(page, lruvec);
 	ClearPageActive(page);
 	ClearPageReferenced(page);
 
@@ -590,10 +586,9 @@ static void lru_deactivate_fn(struct page *page, struct lruvec *lruvec,
 			    void *arg)
 {
 	if (PageLRU(page) && PageActive(page) && !PageUnevictable(page)) {
-		int lru = page_lru_base_type(page);
 		int nr_pages = thp_nr_pages(page);
 
-		del_page_from_lru_list(page, lruvec, lru + LRU_ACTIVE);
+		del_page_from_lru_list(page, lruvec);
 		ClearPageActive(page);
 		ClearPageReferenced(page);
 		add_page_to_lru_list(page, lruvec);
@@ -609,11 +604,9 @@ static void lru_lazyfree_fn(struct page *page, struct lruvec *lruvec,
 {
 	if (PageLRU(page) && PageAnon(page) && PageSwapBacked(page) &&
 	    !PageSwapCache(page) && !PageUnevictable(page)) {
-		bool active = PageActive(page);
 		int nr_pages = thp_nr_pages(page);
 
-		del_page_from_lru_list(page, lruvec,
-				       LRU_INACTIVE_ANON + active);
+		del_page_from_lru_list(page, lruvec);
 		ClearPageActive(page);
 		ClearPageReferenced(page);
 		/*
@@ -637,10 +630,7 @@ static void lru_lazyfree_movetail_fn(struct page *page, struct lruvec *lruvec,
 
 	if (PageLRU(page) && !PageUnevictable(page) && PageSwapBacked(page) &&
 		!PageSwapCache(page)) {
-		bool active = PageActive(page);
-
-		del_page_from_lru_list(page, lruvec,
-				       LRU_INACTIVE_ANON + active);
+		del_page_from_lru_list(page, lruvec);
 		ClearPageActive(page);
 		ClearPageReferenced(page);
 		if (add_to_tail && *add_to_tail)
@@ -1053,7 +1043,8 @@ void release_pages(struct page **pages, int nr)
 			lruvec = mem_cgroup_page_lruvec(page, locked_pgdat);
 			VM_BUG_ON_PAGE(!PageLRU(page), page);
 			__ClearPageLRU(page);
-			del_page_from_lru_list(page, lruvec, page_off_lru(page));
+			del_page_from_lru_list(page, lruvec);
+			page_off_lru(page);
 		}
 
 		__ClearPageWaiters(page);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 657158a5db675..8fa6dcd07669d 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1837,10 +1837,9 @@ int isolate_lru_page(struct page *page)
 		spin_lock_irq(&pgdat->lru_lock);
 		lruvec = mem_cgroup_page_lruvec(page, pgdat);
 		if (PageLRU(page)) {
-			int lru = page_lru(page);
 			get_page(page);
 			ClearPageLRU(page);
-			del_page_from_lru_list(page, lruvec, lru);
+			del_page_from_lru_list(page, lruvec);
 			ret = 0;
 		}
 		spin_unlock_irq(&pgdat->lru_lock);
@@ -1912,7 +1911,6 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 	int nr_pages, nr_moved = 0;
 	LIST_HEAD(pages_to_free);
 	struct page *page;
-	enum lru_list lru;
 
 	while (!list_empty(list)) {
 		page = lru_to_page(list);
@@ -1927,13 +1925,12 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 		lruvec = mem_cgroup_page_lruvec(page, pgdat);
 
 		SetPageLRU(page);
-		lru = page_lru(page);
 		add_page_to_lru_list(page, lruvec);
 
 		if (put_page_testzero(page)) {
 			__ClearPageLRU(page);
+			del_page_from_lru_list(page, lruvec);
 			__ClearPageActive(page);
-			del_page_from_lru_list(page, lruvec, lru);
 
 			if (unlikely(PageCompound(page))) {
 				spin_unlock_irq(&pgdat->lru_lock);
@@ -4422,8 +4419,8 @@ void check_move_unevictable_pages(struct pagevec *pvec)
 
 		if (page_evictable(page)) {
 			VM_BUG_ON_PAGE(PageActive(page), page);
+			del_page_from_lru_list(page, lruvec);
 			ClearPageUnevictable(page);
-			del_page_from_lru_list(page, lruvec, LRU_UNEVICTABLE);
 			add_page_to_lru_list(page, lruvec);
 			pgrescued += nr_pages;
 		}
-- 
GitLab


From bcc2f50f7b487005dbf0de69f8a600e6ca16c8e7 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:08:28 -0800
Subject: [PATCH 4711/4878] BACKPORT: mm: add __clear_page_lru_flags() to
 replace page_off_lru()

Similar to page_off_lru(), the new function does non-atomic clearing
of PageLRU() in addition to PageActive() and PageUnevictable(), on a
page that has no references left.

If PageActive() and PageUnevictable() are both set, refuse to clear
either and leave them to bad_page(). This is a behavior change that
is meant to help debug.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-7-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-7-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 875601796267214f286d3581fe74f2805d060fe8)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I0290916fa08277c50e228a8d3f39af67d62ff9d0
---
 include/linux/mm_inline.h | 28 ++++++++++------------------
 mm/swap.c                 |  6 ++----
 mm/vmscan.c               |  3 +--
 3 files changed, 13 insertions(+), 24 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index ad3b71e471db9..ceefe6988e9d2 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -62,27 +62,19 @@ static inline enum lru_list page_lru_base_type(struct page *page)
 }
 
 /**
- * page_off_lru - which LRU list was page on? clearing its lru flags.
- * @page: the page to test
- *
- * Returns the LRU list a page was on, as an index into the array of LRU
- * lists; and clears its Unevictable or Active flags, ready for freeing.
+ * __clear_page_lru_flags - clear page lru flags before releasing a page
+ * @page: the page that was on lru and now has a zero reference
  */
-static __always_inline enum lru_list page_off_lru(struct page *page)
+static __always_inline void __clear_page_lru_flags(struct page *page)
 {
-	enum lru_list lru;
+	__ClearPageLRU(page);
 
-	if (PageUnevictable(page)) {
-		__ClearPageUnevictable(page);
-		lru = LRU_UNEVICTABLE;
-	} else {
-		lru = page_lru_base_type(page);
-		if (PageActive(page)) {
-			__ClearPageActive(page);
-			lru += LRU_ACTIVE;
-		}
-	}
-	return lru;
+	/* this shouldn't happen, so leave the flags to bad_page() */
+	if (PageActive(page) && PageUnevictable(page))
+		return;
+
+	__ClearPageActive(page);
+	__ClearPageUnevictable(page);
 }
 
 /**
diff --git a/mm/swap.c b/mm/swap.c
index 2caa601837b04..24ca3e52b5278 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -88,9 +88,8 @@ static void __page_cache_release(struct page *page)
 		spin_lock_irqsave(&pgdat->lru_lock, flags);
 		lruvec = mem_cgroup_page_lruvec(page, pgdat);
 		VM_BUG_ON_PAGE(!PageLRU(page), page);
-		__ClearPageLRU(page);
 		del_page_from_lru_list(page, lruvec);
-		page_off_lru(page);
+		__clear_page_lru_flags(page);
 		spin_unlock_irqrestore(&pgdat->lru_lock, flags);
 	}
 	__ClearPageWaiters(page);
@@ -1042,9 +1041,8 @@ void release_pages(struct page **pages, int nr)
 
 			lruvec = mem_cgroup_page_lruvec(page, locked_pgdat);
 			VM_BUG_ON_PAGE(!PageLRU(page), page);
-			__ClearPageLRU(page);
 			del_page_from_lru_list(page, lruvec);
-			page_off_lru(page);
+			__clear_page_lru_flags(page);
 		}
 
 		__ClearPageWaiters(page);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 8fa6dcd07669d..6e8bf535a66bf 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1928,9 +1928,8 @@ static unsigned noinline_for_stack move_pages_to_lru(struct lruvec *lruvec,
 		add_page_to_lru_list(page, lruvec);
 
 		if (put_page_testzero(page)) {
-			__ClearPageLRU(page);
 			del_page_from_lru_list(page, lruvec);
-			__ClearPageActive(page);
+			__clear_page_lru_flags(page);
 
 			if (unlikely(PageCompound(page))) {
 				spin_unlock_irq(&pgdat->lru_lock);
-- 
GitLab


From aadc45fae64865c47a579bed2b45bee2b97df519 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Fri, 2 Oct 2020 02:08:58 -0600
Subject: [PATCH 4712/4878] BACKPORT: mm: VM_BUG_ON lru page flags

Move scattered VM_BUG_ONs to two essential places that cover all
lru list additions and deletions.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-8-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-8-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit bc7112719e1e80e4208eef3fc9bd8d2b6c263e7d)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I950ad4171f973c740d9fc3778d44efc020d0e12c
---
 include/linux/mm_inline.h | 4 ++++
 mm/swap.c                 | 2 --
 mm/vmscan.c               | 1 -
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index ceefe6988e9d2..3ca82456b4dd4 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -67,6 +67,8 @@ static inline enum lru_list page_lru_base_type(struct page *page)
  */
 static __always_inline void __clear_page_lru_flags(struct page *page)
 {
+	VM_BUG_ON_PAGE(!PageLRU(page), page);
+
 	__ClearPageLRU(page);
 
 	/* this shouldn't happen, so leave the flags to bad_page() */
@@ -88,6 +90,8 @@ static __always_inline enum lru_list page_lru(struct page *page)
 {
 	enum lru_list lru;
 
+	VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page);
+
 	if (PageUnevictable(page))
 		lru = LRU_UNEVICTABLE;
 	else {
diff --git a/mm/swap.c b/mm/swap.c
index 24ca3e52b5278..f2f04faba70cb 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -87,7 +87,6 @@ static void __page_cache_release(struct page *page)
 
 		spin_lock_irqsave(&pgdat->lru_lock, flags);
 		lruvec = mem_cgroup_page_lruvec(page, pgdat);
-		VM_BUG_ON_PAGE(!PageLRU(page), page);
 		del_page_from_lru_list(page, lruvec);
 		__clear_page_lru_flags(page);
 		spin_unlock_irqrestore(&pgdat->lru_lock, flags);
@@ -1040,7 +1039,6 @@ void release_pages(struct page **pages, int nr)
 			}
 
 			lruvec = mem_cgroup_page_lruvec(page, locked_pgdat);
-			VM_BUG_ON_PAGE(!PageLRU(page), page);
 			del_page_from_lru_list(page, lruvec);
 			__clear_page_lru_flags(page);
 		}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6e8bf535a66bf..f102ca3eeac57 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -4417,7 +4417,6 @@ void check_move_unevictable_pages(struct pagevec *pvec)
 			continue;
 
 		if (page_evictable(page)) {
-			VM_BUG_ON_PAGE(PageActive(page), page);
 			del_page_from_lru_list(page, lruvec);
 			ClearPageUnevictable(page);
 			add_page_to_lru_list(page, lruvec);
-- 
GitLab


From 0c20cff831e8b9a6b042d47b515441f05d1fd3e6 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:08:36 -0800
Subject: [PATCH 4713/4878] UPSTREAM: include/linux/mm_inline.h: fold
 page_lru_base_type() into its sole caller

We've removed all other references to this function.

Link: https://lore.kernel.org/linux-mm/20201207220949.830352-9-yuzhao@google.com/
Link: https://lkml.kernel.org/r/20210122220600.906146-9-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit c1770e34f3e7640887d8129fc05d13fe17101301)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: If229fa7a09e5be79cc28dc5a780b900e69f4ce64
---
 include/linux/mm_inline.h | 27 ++++++---------------------
 1 file changed, 6 insertions(+), 21 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 3ca82456b4dd4..3fcd1461f57c4 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -46,21 +46,6 @@ static __always_inline void update_lru_size(struct lruvec *lruvec,
 #endif
 }
 
-/**
- * page_lru_base_type - which LRU list type should a page be on?
- * @page: the page to test
- *
- * Used for LRU list index arithmetic.
- *
- * Returns the base LRU type - file or anon - @page should be on.
- */
-static inline enum lru_list page_lru_base_type(struct page *page)
-{
-	if (page_is_file_lru(page))
-		return LRU_INACTIVE_FILE;
-	return LRU_INACTIVE_ANON;
-}
-
 /**
  * __clear_page_lru_flags - clear page lru flags before releasing a page
  * @page: the page that was on lru and now has a zero reference
@@ -93,12 +78,12 @@ static __always_inline enum lru_list page_lru(struct page *page)
 	VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page);
 
 	if (PageUnevictable(page))
-		lru = LRU_UNEVICTABLE;
-	else {
-		lru = page_lru_base_type(page);
-		if (PageActive(page))
-			lru += LRU_ACTIVE;
-	}
+		return LRU_UNEVICTABLE;
+
+	lru = page_is_file_lru(page) ? LRU_INACTIVE_FILE : LRU_INACTIVE_ANON;
+	if (PageActive(page))
+		lru += LRU_ACTIVE;
+
 	return lru;
 }
 
-- 
GitLab


From 80343eeaf3ad0e9b0ce83eb087414e66a32f0ae6 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 24 Feb 2021 12:03:08 -0800
Subject: [PATCH 4714/4878] UPSTREAM: mm/swap: don't SetPageWorkingset
 unconditionally during swapin

We are capable of SetPageWorkingset based on refault distances after
commit aae466b0052e ("mm/swap: implement workingset detection for
anonymous LRU").  This is done by workingset_refault(), which is right
above the unconditional SetPageWorkingset deleted by this patch.

The unconditional SetPageWorkingset miscategorizes pages that are read
ahead or never belonged to the working set (e.g., tmpfs pages accessed
only once by fd).  When those pages are swapped in (after they were
swapped out) for the first time, they skew PSI (when using async swap).
When this happens again, depending on their refault distances, they might
skew workingset_restore_anon counter in addition to PSI because their
shadows indicate they were part of the working set.

Historically, SetPageWorkingset was added as part of the PSI series, and
Johannes said:
 "It was meant to mark incoming pages under IO with SetPageWorkingset
  when waiting for them constituted a memory stall.

  On the page cache side, because we HAVE workingset detection, this was
  specific to recently evicted pages that had been active in their
  previous life. On the anon side, the aging algorithm had no
  distinction between workingset and sporadically used pages. Given the
  choice between a) no swapin stalls are pressure and b) all swapin
  stalls are pressure, I went with the latter in order to detect swap
  storms. The false positive case - high rate of swapin without severe
  memory pressure - was relatively unlikely, because we tried to avoid
  swapping until everything was completely on fire in the first place."

Link: https://lkml.kernel.org/r/20201209012400.1771150-1-yuzhao@google.com
Link: https://lkml.kernel.org/r/20201214231253.62313-1-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit cad8320b4b395702e49578580c70026c8271ea88)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ifa9c5fa2e875e6ccee6c3f7e2d2983278d54c220
---
 mm/swap_state.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/swap_state.c b/mm/swap_state.c
index e797804dcc4d0..d13d58fe48c1f 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -538,7 +538,6 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
 		workingset_refault(page, shadow);
 
 	/* Caller will initiate read into locked page */
-	SetPageWorkingset(page);
 	lru_cache_add(page);
 	*new_page_allocated = true;
 	return page;
-- 
GitLab


From 2b286703d9a30e2c3b6d81acd2f62c5ce47e9d95 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 29 Apr 2021 23:01:04 -0700
Subject: [PATCH 4715/4878] UPSTREAM: include/linux/page-flags-layout.h:
 correctly determine LAST_CPUPID_WIDTH

The naming convention used in include/linux/page-flags-layout.h:
  *_SHIFT: the number of bits trying to allocate
  *_WIDTH: the number of bits successfully allocated

So when it comes to LAST_CPUPID_WIDTH, we need to check whether all
previous *_WIDTH and LAST_CPUPID_SHIFT can fit into page flags. This
means we need to use NODES_WIDTH, not NODES_SHIFT.

Link: https://lkml.kernel.org/r/20210303071609.797782-1-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit f73c6c8805ed0762d99122d5332fcf42b0c8fbb8)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I6d7c58cf5d10e302adc818ac7e1fd727208d23c8
---
 include/linux/page-flags-layout.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 7d4ec26d8a3ed..295c2c687d2ce 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -83,7 +83,7 @@
 #define KASAN_TAG_WIDTH 0
 #endif
 
-#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_CPUPID_SHIFT+KASAN_TAG_WIDTH \
+#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_WIDTH+LAST_CPUPID_SHIFT+KASAN_TAG_WIDTH \
 	<= BITS_PER_LONG - NR_PAGEFLAGS
 #define LAST_CPUPID_WIDTH LAST_CPUPID_SHIFT
 #else
-- 
GitLab


From b4f3b6ac71435bcf4cf22d2160792779eb121c64 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 29 Apr 2021 23:01:07 -0700
Subject: [PATCH 4716/4878] UPSTREAM: include/linux/page-flags-layout.h:
 cleanups

Tidy things up and delete comments stating the obvious with typos or
making no sense.

Link: https://lkml.kernel.org/r/20210303071609.797782-2-yuzhao@google.com
Signed-off-by: Yu Zhao <yuzhao@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 1587db62d8c0dbd943752f657b452213e1c4d8d4)
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I1d57992dd4c68d89c1b9180f280e09d5d08482b6
---
 include/linux/page-flags-layout.h | 62 +++++++++++++++----------------
 mm/mm_init.c                      |  4 --
 2 files changed, 29 insertions(+), 37 deletions(-)

diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 295c2c687d2ce..ef1e3e736e148 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -21,16 +21,17 @@
 #elif MAX_NR_ZONES <= 8
 #define ZONES_SHIFT 3
 #else
-#error ZONES_SHIFT -- too many zones configured adjust calculation
+#error ZONES_SHIFT "Too many zones configured"
 #endif
 
+#define ZONES_WIDTH		ZONES_SHIFT
+
 #ifdef CONFIG_SPARSEMEM
 #include <asm/sparsemem.h>
-
-/* SECTION_SHIFT	#bits space required to store a section # */
 #define SECTIONS_SHIFT	(MAX_PHYSMEM_BITS - SECTION_SIZE_BITS)
-
-#endif /* CONFIG_SPARSEMEM */
+#else
+#define SECTIONS_SHIFT	0
+#endif
 
 #ifndef BUILD_VDSO32_64
 /*
@@ -54,17 +55,28 @@
 #define SECTIONS_WIDTH		0
 #endif
 
-#define ZONES_WIDTH		ZONES_SHIFT
-
-#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
+#if ZONES_WIDTH + SECTIONS_WIDTH + NODES_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
 #define NODES_WIDTH		NODES_SHIFT
-#else
-#ifdef CONFIG_SPARSEMEM_VMEMMAP
+#elif defined(CONFIG_SPARSEMEM_VMEMMAP)
 #error "Vmemmap: No space for nodes field in page flags"
-#endif
+#else
 #define NODES_WIDTH		0
 #endif
 
+/*
+ * Note that this #define MUST have a value so that it can be tested with
+ * the IS_ENABLED() macro.
+ */
+#if NODES_SHIFT != 0 && NODES_WIDTH == 0
+#define NODE_NOT_IN_PAGE_FLAGS	1
+#endif
+
+#if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
+#define KASAN_TAG_WIDTH 8
+#else
+#define KASAN_TAG_WIDTH 0
+#endif
+
 #ifdef CONFIG_NUMA_BALANCING
 #define LAST__PID_SHIFT 8
 #define LAST__PID_MASK  ((1 << LAST__PID_SHIFT)-1)
@@ -77,36 +89,20 @@
 #define LAST_CPUPID_SHIFT 0
 #endif
 
-#if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
-#define KASAN_TAG_WIDTH 8
-#else
-#define KASAN_TAG_WIDTH 0
-#endif
-
-#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_WIDTH+LAST_CPUPID_SHIFT+KASAN_TAG_WIDTH \
+#if ZONES_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + KASAN_TAG_WIDTH + LAST_CPUPID_SHIFT \
 	<= BITS_PER_LONG - NR_PAGEFLAGS
 #define LAST_CPUPID_WIDTH LAST_CPUPID_SHIFT
 #else
 #define LAST_CPUPID_WIDTH 0
 #endif
 
-#if SECTIONS_WIDTH+NODES_WIDTH+ZONES_WIDTH+LAST_CPUPID_WIDTH+KASAN_TAG_WIDTH \
-	> BITS_PER_LONG - NR_PAGEFLAGS
-#error "Not enough bits in page flags"
-#endif
-
-/*
- * We are going to use the flags for the page to node mapping if its in
- * there.  This includes the case where there is no node, so it is implicit.
- * Note that this #define MUST have a value so that it can be tested with
- * the IS_ENABLED() macro.
- */
-#if !(NODES_WIDTH > 0 || NODES_SHIFT == 0)
-#define NODE_NOT_IN_PAGE_FLAGS 1
+#if LAST_CPUPID_SHIFT != 0 && LAST_CPUPID_WIDTH == 0
+#define LAST_CPUPID_NOT_IN_PAGE_FLAGS
 #endif
 
-#if defined(CONFIG_NUMA_BALANCING) && LAST_CPUPID_WIDTH == 0
-#define LAST_CPUPID_NOT_IN_PAGE_FLAGS
+#if ZONES_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + KASAN_TAG_WIDTH + LAST_CPUPID_WIDTH \
+	> BITS_PER_LONG - NR_PAGEFLAGS
+#error "Not enough bits in page flags"
 #endif
 
 #endif
diff --git a/mm/mm_init.c b/mm/mm_init.c
index b06a30fbedff7..954f0f93bb8a9 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -19,10 +19,6 @@
 #ifdef CONFIG_DEBUG_MEMORY_INIT
 int __meminitdata mminit_loglevel;
 
-#ifndef SECTIONS_SHIFT
-#define SECTIONS_SHIFT	0
-#endif
-
 /* The zonelists are simply reported, validation is manual. */
 void __init mminit_verify_zonelist(void)
 {
-- 
GitLab


From 1ed19b562b1fd7862dca4db2d7978fb63cc61454 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 4 Aug 2021 01:31:34 -0600
Subject: [PATCH 4717/4878] FROMLIST: mm: x86, arm64: add
 arch_has_hw_pte_young()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some architectures automatically set the accessed bit in PTEs, e.g.,
x86 and arm64 v8.2. On architectures that do not have this capability,
clearing the accessed bit in a PTE usually triggers a page fault
following the TLB miss of this PTE (to emulate the accessed bit).

Being aware of this capability can help make better decisions, e.g.,
whether to spread the work out over a period of time to reduce bursty
page faults when trying to clear the accessed bit in many PTEs.

Note that theoretically this capability can be unreliable, e.g.,
hotplugged CPUs might be different from builtin ones. Therefore it
should not be used in architecture-independent code that involves
correctness, e.g., to determine whether TLB flushes are required (in
combination with the accessed bit).

Link: https://lore.kernel.org/r/20220309021230.721028-2-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ie81175d7e0d239f688d31487b298cf9b4fb66707
---
 arch/arm64/include/asm/pgtable.h | 14 ++------------
 arch/x86/include/asm/pgtable.h   |  6 +++---
 include/linux/pgtable.h          | 13 +++++++++++++
 mm/memory.c                      | 14 +-------------
 4 files changed, 19 insertions(+), 28 deletions(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 40321a57088df..e4796c3ad19ac 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1011,23 +1011,13 @@ static inline void update_mmu_cache(struct vm_area_struct *vma,
  * page after fork() + CoW for pfn mappings. We don't always have a
  * hardware-managed access flag on arm64.
  */
-static inline bool arch_faults_on_old_pte(void)
-{
-	WARN_ON(preemptible());
-
-	return !cpu_has_hw_af();
-}
-#define arch_faults_on_old_pte		arch_faults_on_old_pte
+#define arch_has_hw_pte_young		cpu_has_hw_af
 
 /*
  * Experimentally, it's cheap to set the access flag in hardware and we
  * benefit from prefaulting mappings as 'old' to start with.
  */
-static inline bool arch_wants_old_prefaulted_pte(void)
-{
-	return !arch_faults_on_old_pte();
-}
-#define arch_wants_old_prefaulted_pte	arch_wants_old_prefaulted_pte
+#define arch_wants_old_prefaulted_pte	cpu_has_hw_af
 
 #endif /* !__ASSEMBLY__ */
 
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 87de9f2d71cf2..7792a0624b64b 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1452,10 +1452,10 @@ static inline bool arch_has_pfn_modify_check(void)
 	return boot_cpu_has_bug(X86_BUG_L1TF);
 }
 
-#define arch_faults_on_old_pte arch_faults_on_old_pte
-static inline bool arch_faults_on_old_pte(void)
+#define arch_has_hw_pte_young arch_has_hw_pte_young
+static inline bool arch_has_hw_pte_young(void)
 {
-	return false;
+	return true;
 }
 
 #endif	/* __ASSEMBLY__ */
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index eb724505951f8..3f6deb4340748 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -241,6 +241,19 @@ static inline int pmdp_clear_flush_young(struct vm_area_struct *vma,
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 #endif
 
+#ifndef arch_has_hw_pte_young
+/*
+ * Return whether the accessed bit is supported on the local CPU.
+ *
+ * This stub assumes accessing through an old PTE triggers a page fault.
+ * Architectures that automatically set the access bit should overwrite it.
+ */
+static inline bool arch_has_hw_pte_young(void)
+{
+	return false;
+}
+#endif
+
 #ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR
 static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
 				       unsigned long address,
diff --git a/mm/memory.c b/mm/memory.c
index 3cac597dbc467..fb569dd9489f7 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -126,18 +126,6 @@ int randomize_va_space __read_mostly =
 					2;
 #endif
 
-#ifndef arch_faults_on_old_pte
-static inline bool arch_faults_on_old_pte(void)
-{
-	/*
-	 * Those arches which don't have hw access flag feature need to
-	 * implement their own helper. By default, "true" means pagefault
-	 * will be hit on old pte.
-	 */
-	return true;
-}
-#endif
-
 #ifndef arch_wants_old_prefaulted_pte
 static inline bool arch_wants_old_prefaulted_pte(void)
 {
@@ -2880,7 +2868,7 @@ static inline bool cow_user_page(struct page *dst, struct page *src,
 	 * On architectures with software "accessed" bits, we would
 	 * take a double page fault, so mark it accessed here.
 	 */
-	if (arch_faults_on_old_pte() && !pte_young(vmf->orig_pte)) {
+	if (!arch_has_hw_pte_young() && !pte_young(vmf->orig_pte)) {
 		pte_t entry;
 
 		vmf->pte = pte_offset_map_lock(mm, vmf->pmd, addr, &vmf->ptl);
-- 
GitLab


From 95acc9c28b2420ab98813bb1dbe6c02bd4bcee96 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Sat, 26 Sep 2020 21:17:18 -0600
Subject: [PATCH 4718/4878] FROMLIST: mm: x86: add
 CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some architectures support the accessed bit in non-leaf PMD entries,
e.g., x86 sets the accessed bit in a non-leaf PMD entry when using it
as part of linear address translation [1]. Page table walkers that
clear the accessed bit may use this capability to reduce their search
space.

Note that:
1. Although an inline function is preferable, this capability is added
   as a configuration option for consistency with the existing macros.
2. Due to the little interest in other varieties, this capability was
   only tested on Intel and AMD CPUs.

[1]: Intel 64 and IA-32 Architectures Software Developer's Manual
     Volume 3 (June 2021), section 4.8

Link: https://lore.kernel.org/r/20220309021230.721028-3-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I73f84a21fd315192eaa3e6443334ed1bccb4e99e
---
 arch/Kconfig                   | 9 +++++++++
 arch/x86/Kconfig               | 1 +
 arch/x86/include/asm/pgtable.h | 3 ++-
 arch/x86/mm/pgtable.c          | 5 ++++-
 include/linux/pgtable.h        | 4 ++--
 5 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 9528d0bd544dd..d39f92e9cf51e 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1180,6 +1180,15 @@ config ARCH_SPLIT_ARG64
 	   If a 32-bit architecture requires 64-bit arguments to be split into
 	   pairs of 32-bit arguments, select this option.
 
+config ARCH_HAS_NONLEAF_PMD_YOUNG
+	bool
+	depends on PGTABLE_LEVELS > 2
+	help
+	  Architectures that select this option are capable of setting the
+	  accessed bit in non-leaf PMD entries when using them as part of linear
+	  address translations. Page table walkers that clear the accessed bit
+	  may use this capability to reduce their search space.
+
 source "kernel/gcov/Kconfig"
 
 source "scripts/gcc-plugins/Kconfig"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5e28d4a0dff5a..f6fb0f6277b95 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -76,6 +76,7 @@ config X86
 	select ARCH_HAS_PMEM_API		if X86_64
 	select ARCH_HAS_PTE_DEVMAP		if X86_64
 	select ARCH_HAS_PTE_SPECIAL
+	select ARCH_HAS_NONLEAF_PMD_YOUNG
 	select ARCH_HAS_UACCESS_FLUSHCACHE	if X86_64
 	select ARCH_HAS_COPY_MC			if X86_64
 	select ARCH_HAS_SET_MEMORY
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 7792a0624b64b..ed09aca6203ad 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -846,7 +846,8 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd)
 
 static inline int pmd_bad(pmd_t pmd)
 {
-	return (pmd_flags(pmd) & ~_PAGE_USER) != _KERNPG_TABLE;
+	return (pmd_flags(pmd) & ~(_PAGE_USER | _PAGE_ACCESSED)) !=
+	       (_KERNPG_TABLE & ~_PAGE_ACCESSED);
 }
 
 static inline unsigned long pages_to_mb(unsigned long npg)
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index f6a9e2e366425..fd0f1cb6fc6c9 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -550,7 +550,7 @@ int ptep_test_and_clear_young(struct vm_area_struct *vma,
 	return ret;
 }
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG)
 int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 			      unsigned long addr, pmd_t *pmdp)
 {
@@ -562,6 +562,9 @@ int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 
 	return ret;
 }
+#endif
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 int pudp_test_and_clear_young(struct vm_area_struct *vma,
 			      unsigned long addr, pud_t *pudp)
 {
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 3f6deb4340748..ab7287e59c070 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -194,7 +194,7 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
 #endif
 
 #ifndef __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG)
 static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 					    unsigned long address,
 					    pmd_t *pmdp)
@@ -215,7 +215,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 	BUILD_BUG();
 	return 0;
 }
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG */
 #endif
 
 #ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
-- 
GitLab


From 4c6c8172490089f479d7612ef39d3048fd77e9b5 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Sun, 27 Sep 2020 20:49:08 -0600
Subject: [PATCH 4719/4878] FROMLIST: mm/vmscan.c: refactor shrink_node()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch refactors shrink_node() to improve readability for the
upcoming changes to mm/vmscan.c.

Link: https://lore.kernel.org/r/20220309021230.721028-4-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I186f43f946de0d40d54883fb31114840fc749a57
---
 mm/vmscan.c | 186 +++++++++++++++++++++++++++-------------------------
 1 file changed, 98 insertions(+), 88 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index f102ca3eeac57..6de728db3053b 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2282,6 +2282,103 @@ enum scan_balance {
 	SCAN_FILE,
 };
 
+static void prepare_scan_count(pg_data_t *pgdat, struct scan_control *sc)
+{
+	unsigned long file;
+	struct lruvec *target_lruvec;
+
+	target_lruvec = mem_cgroup_lruvec(sc->target_mem_cgroup, pgdat);
+
+	/*
+	 * Determine the scan balance between anon and file LRUs.
+	 */
+	spin_lock_irq(&pgdat->lru_lock);
+	sc->anon_cost = target_lruvec->anon_cost;
+	sc->file_cost = target_lruvec->file_cost;
+	spin_unlock_irq(&pgdat->lru_lock);
+
+	/*
+	 * Target desirable inactive:active list ratios for the anon
+	 * and file LRU lists.
+	 */
+	if (!sc->force_deactivate) {
+		unsigned long refaults;
+
+		refaults = lruvec_page_state(target_lruvec,
+				WORKINGSET_ACTIVATE_ANON);
+		if (refaults != target_lruvec->refaults[0] ||
+			inactive_is_low(target_lruvec, LRU_INACTIVE_ANON))
+			sc->may_deactivate |= DEACTIVATE_ANON;
+		else
+			sc->may_deactivate &= ~DEACTIVATE_ANON;
+
+		/*
+		 * When refaults are being observed, it means a new
+		 * workingset is being established. Deactivate to get
+		 * rid of any stale active pages quickly.
+		 */
+		refaults = lruvec_page_state(target_lruvec,
+				WORKINGSET_ACTIVATE_FILE);
+		if (refaults != target_lruvec->refaults[1] ||
+		    inactive_is_low(target_lruvec, LRU_INACTIVE_FILE))
+			sc->may_deactivate |= DEACTIVATE_FILE;
+		else
+			sc->may_deactivate &= ~DEACTIVATE_FILE;
+	} else
+		sc->may_deactivate = DEACTIVATE_ANON | DEACTIVATE_FILE;
+
+	/*
+	 * If we have plenty of inactive file pages that aren't
+	 * thrashing, try to reclaim those first before touching
+	 * anonymous pages.
+	 */
+	file = lruvec_page_state(target_lruvec, NR_INACTIVE_FILE);
+	if (file >> sc->priority && !(sc->may_deactivate & DEACTIVATE_FILE))
+		sc->cache_trim_mode = 1;
+	else
+		sc->cache_trim_mode = 0;
+
+	/*
+	 * Prevent the reclaimer from falling into the cache trap: as
+	 * cache pages start out inactive, every cache fault will tip
+	 * the scan balance towards the file LRU.  And as the file LRU
+	 * shrinks, so does the window for rotation from references.
+	 * This means we have a runaway feedback loop where a tiny
+	 * thrashing file LRU becomes infinitely more attractive than
+	 * anon pages.  Try to detect this based on file LRU size.
+	 */
+	if (!cgroup_reclaim(sc)) {
+		unsigned long total_high_wmark = 0;
+		unsigned long free, anon;
+		int z;
+
+		free = sum_zone_node_page_state(pgdat->node_id, NR_FREE_PAGES);
+		file = node_page_state(pgdat, NR_ACTIVE_FILE) +
+			   node_page_state(pgdat, NR_INACTIVE_FILE);
+
+		for (z = 0; z < MAX_NR_ZONES; z++) {
+			struct zone *zone = &pgdat->node_zones[z];
+
+			if (!managed_zone(zone))
+				continue;
+
+			total_high_wmark += high_wmark_pages(zone);
+		}
+
+		/*
+		 * Consider anon: if that's low too, this isn't a
+		 * runaway file reclaim problem, but rather just
+		 * extreme pressure. Reclaim as per usual then.
+		 */
+		anon = node_page_state(pgdat, NR_INACTIVE_ANON);
+
+		sc->file_is_tiny =
+			file + free <= total_high_wmark &&
+			!(sc->may_deactivate & DEACTIVATE_ANON) &&
+			anon >> sc->priority;
+	}
+}
+
 /*
  * Determine how aggressively the anon and file LRU lists should be
  * scanned.  The relative value of each set of LRU lists is determined
@@ -2742,7 +2839,6 @@ static void shrink_node(pg_data_t *pgdat, struct scan_control *sc)
 	unsigned long nr_reclaimed, nr_scanned;
 	struct lruvec *target_lruvec;
 	bool reclaimable = false;
-	unsigned long file;
 
 	target_lruvec = mem_cgroup_lruvec(sc->target_mem_cgroup, pgdat);
 
@@ -2752,93 +2848,7 @@ again:
 	nr_reclaimed = sc->nr_reclaimed;
 	nr_scanned = sc->nr_scanned;
 
-	/*
-	 * Determine the scan balance between anon and file LRUs.
-	 */
-	spin_lock_irq(&pgdat->lru_lock);
-	sc->anon_cost = target_lruvec->anon_cost;
-	sc->file_cost = target_lruvec->file_cost;
-	spin_unlock_irq(&pgdat->lru_lock);
-
-	/*
-	 * Target desirable inactive:active list ratios for the anon
-	 * and file LRU lists.
-	 */
-	if (!sc->force_deactivate) {
-		unsigned long refaults;
-
-		refaults = lruvec_page_state(target_lruvec,
-				WORKINGSET_ACTIVATE_ANON);
-		if (refaults != target_lruvec->refaults[0] ||
-			inactive_is_low(target_lruvec, LRU_INACTIVE_ANON))
-			sc->may_deactivate |= DEACTIVATE_ANON;
-		else
-			sc->may_deactivate &= ~DEACTIVATE_ANON;
-
-		/*
-		 * When refaults are being observed, it means a new
-		 * workingset is being established. Deactivate to get
-		 * rid of any stale active pages quickly.
-		 */
-		refaults = lruvec_page_state(target_lruvec,
-				WORKINGSET_ACTIVATE_FILE);
-		if (refaults != target_lruvec->refaults[1] ||
-		    inactive_is_low(target_lruvec, LRU_INACTIVE_FILE))
-			sc->may_deactivate |= DEACTIVATE_FILE;
-		else
-			sc->may_deactivate &= ~DEACTIVATE_FILE;
-	} else
-		sc->may_deactivate = DEACTIVATE_ANON | DEACTIVATE_FILE;
-
-	/*
-	 * If we have plenty of inactive file pages that aren't
-	 * thrashing, try to reclaim those first before touching
-	 * anonymous pages.
-	 */
-	file = lruvec_page_state(target_lruvec, NR_INACTIVE_FILE);
-	if (file >> sc->priority && !(sc->may_deactivate & DEACTIVATE_FILE))
-		sc->cache_trim_mode = 1;
-	else
-		sc->cache_trim_mode = 0;
-
-	/*
-	 * Prevent the reclaimer from falling into the cache trap: as
-	 * cache pages start out inactive, every cache fault will tip
-	 * the scan balance towards the file LRU.  And as the file LRU
-	 * shrinks, so does the window for rotation from references.
-	 * This means we have a runaway feedback loop where a tiny
-	 * thrashing file LRU becomes infinitely more attractive than
-	 * anon pages.  Try to detect this based on file LRU size.
-	 */
-	if (!cgroup_reclaim(sc)) {
-		unsigned long total_high_wmark = 0;
-		unsigned long free, anon;
-		int z;
-
-		free = sum_zone_node_page_state(pgdat->node_id, NR_FREE_PAGES);
-		file = node_page_state(pgdat, NR_ACTIVE_FILE) +
-			   node_page_state(pgdat, NR_INACTIVE_FILE);
-
-		for (z = 0; z < MAX_NR_ZONES; z++) {
-			struct zone *zone = &pgdat->node_zones[z];
-			if (!managed_zone(zone))
-				continue;
-
-			total_high_wmark += high_wmark_pages(zone);
-		}
-
-		/*
-		 * Consider anon: if that's low too, this isn't a
-		 * runaway file reclaim problem, but rather just
-		 * extreme pressure. Reclaim as per usual then.
-		 */
-		anon = node_page_state(pgdat, NR_INACTIVE_ANON);
-
-		sc->file_is_tiny =
-			file + free <= total_high_wmark &&
-			!(sc->may_deactivate & DEACTIVATE_ANON) &&
-			anon >> sc->priority;
-	}
+	prepare_scan_count(pgdat, sc);
 
 	shrink_node_memcgs(pgdat, sc);
 
-- 
GitLab


From fe302bd1f9332f24eca774d2f958c95f807cf342 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Mon, 25 Jan 2021 21:12:33 -0700
Subject: [PATCH 4720/4878] FROMLIST: mm: multi-gen LRU: groundwork
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Evictable pages are divided into multiple generations for each lruvec.
The youngest generation number is stored in lrugen->max_seq for both
anon and file types as they are aged on an equal footing. The oldest
generation numbers are stored in lrugen->min_seq[] separately for anon
and file types as clean file pages can be evicted regardless of swap
constraints. These three variables are monotonically increasing.

Generation numbers are truncated into order_base_2(MAX_NR_GENS+1) bits
in order to fit into the gen counter in page->flags. Each truncated
generation number is an index to lrugen->lists[]. The sliding window
technique is used to track at least MIN_NR_GENS and at most
MAX_NR_GENS generations. The gen counter stores a value within [1,
MAX_NR_GENS] while a page is on one of lrugen->lists[]. Otherwise it
stores 0.

There are two conceptually independent procedures: "the aging", which
produces young generations, and "the eviction", which consumes old
generations. They form a closed-loop system, i.e., "the page reclaim".
Both procedures can be invoked from userspace for the purposes of
working set estimation and proactive reclaim. These features are
required to optimize job scheduling (bin packing) in data centers. The
variable size of the sliding window is designed for such use cases
[1][2].

To avoid confusion, the terms "hot" and "cold" will be applied to the
multi-gen LRU, as a new convention; the terms "active" and "inactive"
will be applied to the active/inactive LRU, as usual.

The protection of hot pages and the selection of cold pages are based
on page access channels and patterns. There are two access channels:
one through page tables and the other through file descriptors. The
protection of the former channel is by design stronger because:
1. The uncertainty in determining the access patterns of the former
   channel is higher due to the approximation of the accessed bit.
2. The cost of evicting the former channel is higher due to the TLB
   flushes required and the likelihood of encountering the dirty bit.
3. The penalty of underprotecting the former channel is higher because
   applications usually do not prepare themselves for major page
   faults like they do for blocked I/O. E.g., GUI applications
   commonly use dedicated I/O threads to avoid blocking the rendering
   threads.
There are also two access patterns: one with temporal locality and the
other without. For the reasons listed above, the former channel is
assumed to follow the former pattern unless VM_SEQ_READ or
VM_RAND_READ is present; the latter channel is assumed to follow the
latter pattern unless outlying refaults have been observed [3][4].

The next patch will address the "outlying refaults". Three macros,
i.e., LRU_REFS_WIDTH, LRU_REFS_PGOFF and LRU_REFS_MASK, used later are
added in this patch to make the entire patchset less diffy.

A page is added to the youngest generation on faulting. The aging
needs to check the accessed bit at least twice before handing this
page over to the eviction. The first check takes care of the accessed
bit set on the initial fault; the second check makes sure this page
has not been used since then. This protocol, AKA second chance,
requires a minimum of two generations, hence MIN_NR_GENS.

[1] https://dl.acm.org/doi/10.1145/3297858.3304053
[2] https://dl.acm.org/doi/10.1145/3503222.3507731
[3] https://lwn.net/Articles/495543/
[4] https://lwn.net/Articles/815342/

Link: https://lore.kernel.org/r/20220309021230.721028-6-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I333ec6a1d2abfa60d93d6adc190ed3eefe441512
---
 fs/fuse/dev.c                     |   3 +-
 include/linux/mm.h                |   2 +
 include/linux/mm_inline.h         | 174 ++++++++++++++++++++++++++++++
 include/linux/mmzone.h            |  94 ++++++++++++++++
 include/linux/page-flags-layout.h |  11 +-
 include/linux/page-flags.h        |   4 +-
 include/linux/sched.h             |   4 +
 kernel/bounds.c                   |   7 ++
 mm/Kconfig                        |   8 ++
 mm/huge_memory.c                  |   3 +-
 mm/memcontrol.c                   |   2 +
 mm/memory.c                       |  25 +++++
 mm/mm_init.c                      |   6 +-
 mm/mmzone.c                       |   2 +
 mm/swap.c                         |   9 +-
 mm/vmscan.c                       |  75 +++++++++++++
 16 files changed, 416 insertions(+), 13 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index c3cd2b2c32764..c13be2fa891f5 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -795,7 +795,8 @@ static int fuse_check_page(struct page *page)
 	       1 << PG_active |
 	       1 << PG_workingset |
 	       1 << PG_reclaim |
-	       1 << PG_waiters))) {
+	       1 << PG_waiters |
+	       LRU_GEN_MASK | LRU_REFS_MASK))) {
 		dump_page(page, "fuse: trying to steal weird page");
 		return 1;
 	}
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ebd5520c826f6..c93e896ab4d83 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1107,6 +1107,8 @@ vm_fault_t finish_mkwrite_fault(struct vm_fault *vmf);
 #define ZONES_PGOFF		(NODES_PGOFF - ZONES_WIDTH)
 #define LAST_CPUPID_PGOFF	(ZONES_PGOFF - LAST_CPUPID_WIDTH)
 #define KASAN_TAG_PGOFF		(LAST_CPUPID_PGOFF - KASAN_TAG_WIDTH)
+#define LRU_GEN_PGOFF		(KASAN_TAG_PGOFF - LRU_GEN_WIDTH)
+#define LRU_REFS_PGOFF		(LRU_GEN_PGOFF - LRU_REFS_WIDTH)
 
 /*
  * Define the bit shifts to access each section.  For non-existent
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 3fcd1461f57c4..9c71c4757cf3a 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -31,6 +31,8 @@ static __always_inline void __update_lru_size(struct lruvec *lruvec,
 {
 	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
 
+	lockdep_assert_held(&pgdat->lru_lock);
+
 	__mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages);
 	__mod_zone_page_state(&pgdat->node_zones[zid],
 				NR_ZONE_LRU_BASE + lru, nr_pages);
@@ -87,11 +89,177 @@ static __always_inline enum lru_list page_lru(struct page *page)
 	return lru;
 }
 
+#ifdef CONFIG_LRU_GEN
+
+static inline bool lru_gen_enabled(void)
+{
+	return true;
+}
+
+static inline bool lru_gen_in_fault(void)
+{
+	return current->in_lru_fault;
+}
+
+static inline int lru_gen_from_seq(unsigned long seq)
+{
+	return seq % MAX_NR_GENS;
+}
+
+static inline bool lru_gen_is_active(struct lruvec *lruvec, int gen)
+{
+	unsigned long max_seq = lruvec->lrugen.max_seq;
+
+	VM_BUG_ON(gen >= MAX_NR_GENS);
+
+	/* see the comment on MIN_NR_GENS */
+	return gen == lru_gen_from_seq(max_seq) || gen == lru_gen_from_seq(max_seq - 1);
+}
+
+static inline void lru_gen_update_size(struct lruvec *lruvec, struct page *page,
+				       int old_gen, int new_gen)
+{
+	int type = page_is_file_lru(page);
+	int zone = page_zonenum(page);
+	int delta = thp_nr_pages(page);
+	enum lru_list lru = type * LRU_INACTIVE_FILE;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	VM_BUG_ON(old_gen != -1 && old_gen >= MAX_NR_GENS);
+	VM_BUG_ON(new_gen != -1 && new_gen >= MAX_NR_GENS);
+	VM_BUG_ON(old_gen == -1 && new_gen == -1);
+
+	if (old_gen >= 0)
+		WRITE_ONCE(lrugen->nr_pages[old_gen][type][zone],
+			   lrugen->nr_pages[old_gen][type][zone] - delta);
+	if (new_gen >= 0)
+		WRITE_ONCE(lrugen->nr_pages[new_gen][type][zone],
+			   lrugen->nr_pages[new_gen][type][zone] + delta);
+
+	/* addition */
+	if (old_gen < 0) {
+		if (lru_gen_is_active(lruvec, new_gen))
+			lru += LRU_ACTIVE;
+		__update_lru_size(lruvec, lru, zone, delta);
+		return;
+	}
+
+	/* deletion */
+	if (new_gen < 0) {
+		if (lru_gen_is_active(lruvec, old_gen))
+			lru += LRU_ACTIVE;
+		__update_lru_size(lruvec, lru, zone, -delta);
+		return;
+	}
+}
+
+static inline bool lru_gen_add_page(struct lruvec *lruvec, struct page *page, bool reclaiming)
+{
+	int gen;
+	unsigned long old_flags, new_flags;
+	int type = page_is_file_lru(page);
+	int zone = page_zonenum(page);
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	if (PageUnevictable(page))
+		return false;
+	/*
+	 * There are three common cases for this page:
+	 * 1. If it's hot, e.g., freshly faulted in or previously hot and
+	 *    migrated, add it to the youngest generation.
+	 * 2. If it's cold but can't be evicted immediately, i.e., an anon page
+	 *    not in swapcache or a dirty page pending writeback, add it to the
+	 *    second oldest generation.
+	 * 3. Everything else (clean, cold) is added to the oldest generation.
+	 */
+	if (PageActive(page))
+		gen = lru_gen_from_seq(lrugen->max_seq);
+	else if ((type == LRU_GEN_ANON && !PageSwapCache(page)) ||
+		 (PageReclaim(page) && (PageDirty(page) || PageWriteback(page))))
+		gen = lru_gen_from_seq(lrugen->min_seq[type] + 1);
+	else
+		gen = lru_gen_from_seq(lrugen->min_seq[type]);
+
+	do {
+		new_flags = old_flags = READ_ONCE(page->flags);
+		VM_BUG_ON_PAGE(new_flags & LRU_GEN_MASK, page);
+
+		/* see the comment on MIN_NR_GENS */
+		new_flags &= ~(LRU_GEN_MASK | BIT(PG_active));
+		new_flags |= (gen + 1UL) << LRU_GEN_PGOFF;
+	} while (cmpxchg(&page->flags, old_flags, new_flags) != old_flags);
+
+	lru_gen_update_size(lruvec, page, -1, gen);
+	/* for rotate_reclaimable_page() */
+	if (reclaiming)
+		list_add_tail(&page->lru, &lrugen->lists[gen][type][zone]);
+	else
+		list_add(&page->lru, &lrugen->lists[gen][type][zone]);
+
+	return true;
+}
+
+static inline bool lru_gen_del_page(struct lruvec *lruvec, struct page *page, bool reclaiming)
+{
+	int gen;
+	unsigned long old_flags, new_flags;
+
+	do {
+		new_flags = old_flags = READ_ONCE(page->flags);
+		if (!(new_flags & LRU_GEN_MASK))
+			return false;
+
+		VM_BUG_ON_PAGE(PageActive(page), page);
+		VM_BUG_ON_PAGE(PageUnevictable(page), page);
+
+		gen = ((new_flags & LRU_GEN_MASK) >> LRU_GEN_PGOFF) - 1;
+
+		new_flags &= ~LRU_GEN_MASK;
+		/* for shrink_page_list() */
+		if (reclaiming)
+			new_flags &= ~(BIT(PG_referenced) | BIT(PG_reclaim));
+		else if (lru_gen_is_active(lruvec, gen))
+			new_flags |= BIT(PG_active);
+	} while (cmpxchg(&page->flags, old_flags, new_flags) != old_flags);
+
+	lru_gen_update_size(lruvec, page, gen, -1);
+	list_del(&page->lru);
+
+	return true;
+}
+
+#else
+
+static inline bool lru_gen_enabled(void)
+{
+	return false;
+}
+
+static inline bool lru_gen_in_fault(void)
+{
+	return false;
+}
+
+static inline bool lru_gen_add_page(struct lruvec *lruvec, struct page *page, bool reclaiming)
+{
+	return false;
+}
+
+static inline bool lru_gen_del_page(struct lruvec *lruvec, struct page *page, bool reclaiming)
+{
+	return false;
+}
+
+#endif /* CONFIG_LRU_GEN */
+
 static __always_inline void add_page_to_lru_list(struct page *page,
 				struct lruvec *lruvec)
 {
 	enum lru_list lru = page_lru(page);
 
+	if (lru_gen_add_page(lruvec, page, false))
+		return;
+
 	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
 	list_add(&page->lru, &lruvec->lists[lru]);
 }
@@ -101,6 +269,9 @@ static __always_inline void add_page_to_lru_list_tail(struct page *page,
 {
 	enum lru_list lru = page_lru(page);
 
+	if (lru_gen_add_page(lruvec, page, true))
+		return;
+
 	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
 	list_add_tail(&page->lru, &lruvec->lists[lru]);
 }
@@ -108,6 +279,9 @@ static __always_inline void add_page_to_lru_list_tail(struct page *page,
 static __always_inline void del_page_from_lru_list(struct page *page,
 				struct lruvec *lruvec)
 {
+	if (lru_gen_del_page(lruvec, page, false))
+		return;
+
 	list_del(&page->lru);
 	update_lru_size(lruvec, page_lru(page), page_zonenum(page),
 			-thp_nr_pages(page));
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index f72b488b790b8..14eaa2117e1d6 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -277,6 +277,96 @@ enum lruvec_flags {
 					 */
 };
 
+#endif /* !__GENERATING_BOUNDS_H */
+
+/*
+ * Evictable pages are divided into multiple generations. The youngest and the
+ * oldest generation numbers, max_seq and min_seq, are monotonically increasing.
+ * They form a sliding window of a variable size [MIN_NR_GENS, MAX_NR_GENS]. An
+ * offset within MAX_NR_GENS, gen, indexes the LRU list of the corresponding
+ * generation. The gen counter in page->flags stores gen+1 while a page is on
+ * one of lrugen->lists[]. Otherwise it stores 0.
+ *
+ * A page is added to the youngest generation on faulting. The aging needs to
+ * check the accessed bit at least twice before handing this page over to the
+ * eviction. The first check takes care of the accessed bit set on the initial
+ * fault; the second check makes sure this page hasn't been used since then.
+ * This process, AKA second chance, requires a minimum of two generations,
+ * hence MIN_NR_GENS. And to maintain ABI compatibility with the active/inactive
+ * LRU, these two generations are considered active; the rest of generations, if
+ * they exist, are considered inactive. See lru_gen_is_active(). PG_active is
+ * always cleared while a page is on one of lrugen->lists[] so that the aging
+ * needs not to worry about it. And it's set again when a page considered active
+ * is isolated for non-reclaiming purposes, e.g., migration. See
+ * lru_gen_add_page() and lru_gen_del_page().
+ *
+ * MAX_NR_GENS is set to 4 so that the multi-gen LRU can support twice of the
+ * categories of the active/inactive LRU when keeping track of accesses through
+ * page tables. It requires order_base_2(MAX_NR_GENS+1) bits in page->flags.
+ */
+#define MIN_NR_GENS		2U
+#define MAX_NR_GENS		4U
+
+#ifndef __GENERATING_BOUNDS_H
+
+struct lruvec;
+
+#define LRU_GEN_MASK		((BIT(LRU_GEN_WIDTH) - 1) << LRU_GEN_PGOFF)
+#define LRU_REFS_MASK		((BIT(LRU_REFS_WIDTH) - 1) << LRU_REFS_PGOFF)
+
+#ifdef CONFIG_LRU_GEN
+
+enum {
+	LRU_GEN_ANON,
+	LRU_GEN_FILE,
+};
+
+/*
+ * The youngest generation number is stored in max_seq for both anon and file
+ * types as they are aged on an equal footing. The oldest generation numbers are
+ * stored in min_seq[] separately for anon and file types as clean file pages
+ * can be evicted regardless of swap constraints.
+ *
+ * Normally anon and file min_seq are in sync. But if swapping is constrained,
+ * e.g., out of swap space, file min_seq is allowed to advance and leave anon
+ * min_seq behind.
+ */
+struct lru_gen_struct {
+	/* the aging increments the youngest generation number */
+	unsigned long max_seq;
+	/* the eviction increments the oldest generation numbers */
+	unsigned long min_seq[ANON_AND_FILE];
+	/* the multi-gen LRU lists */
+	struct list_head lists[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES];
+	/* the sizes of the above lists */
+	unsigned long nr_pages[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES];
+};
+
+void lru_gen_init_lruvec(struct lruvec *lruvec);
+
+#ifdef CONFIG_MEMCG
+void lru_gen_init_memcg(struct mem_cgroup *memcg);
+void lru_gen_exit_memcg(struct mem_cgroup *memcg);
+#endif
+
+#else /* !CONFIG_LRU_GEN */
+
+static inline void lru_gen_init_lruvec(struct lruvec *lruvec)
+{
+}
+
+#ifdef CONFIG_MEMCG
+static inline void lru_gen_init_memcg(struct mem_cgroup *memcg)
+{
+}
+
+static inline void lru_gen_exit_memcg(struct mem_cgroup *memcg)
+{
+}
+#endif
+
+#endif /* CONFIG_LRU_GEN */
+
 struct lruvec {
 	struct list_head		lists[NR_LRU_LISTS];
 	/*
@@ -292,6 +382,10 @@ struct lruvec {
 	unsigned long			refaults[ANON_AND_FILE];
 	/* Various lruvec state flags (enum lruvec_flags) */
 	unsigned long			flags;
+#ifdef CONFIG_LRU_GEN
+	/* evictable pages divided into generations */
+	struct lru_gen_struct		lrugen;
+#endif
 #ifdef CONFIG_MEMCG
 	struct pglist_data *pgdat;
 #endif
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index ef1e3e736e148..c1946cdb845fe 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -55,7 +55,8 @@
 #define SECTIONS_WIDTH		0
 #endif
 
-#if ZONES_WIDTH + SECTIONS_WIDTH + NODES_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
+#if ZONES_WIDTH + LRU_GEN_WIDTH + LRU_REFS_WIDTH + SECTIONS_WIDTH + NODES_SHIFT \
+	<= BITS_PER_LONG - NR_PAGEFLAGS
 #define NODES_WIDTH		NODES_SHIFT
 #elif defined(CONFIG_SPARSEMEM_VMEMMAP)
 #error "Vmemmap: No space for nodes field in page flags"
@@ -89,8 +90,8 @@
 #define LAST_CPUPID_SHIFT 0
 #endif
 
-#if ZONES_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + KASAN_TAG_WIDTH + LAST_CPUPID_SHIFT \
-	<= BITS_PER_LONG - NR_PAGEFLAGS
+#if ZONES_WIDTH + LRU_GEN_WIDTH + LRU_REFS_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + \
+	KASAN_TAG_WIDTH + LAST_CPUPID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
 #define LAST_CPUPID_WIDTH LAST_CPUPID_SHIFT
 #else
 #define LAST_CPUPID_WIDTH 0
@@ -100,8 +101,8 @@
 #define LAST_CPUPID_NOT_IN_PAGE_FLAGS
 #endif
 
-#if ZONES_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + KASAN_TAG_WIDTH + LAST_CPUPID_WIDTH \
-	> BITS_PER_LONG - NR_PAGEFLAGS
+#if ZONES_WIDTH + LRU_GEN_WIDTH + LRU_REFS_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + \
+	KASAN_TAG_WIDTH + LAST_CPUPID_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS
 #error "Not enough bits in page flags"
 #endif
 
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 1c5027fdc2a9e..403a1dd5dbae7 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -803,7 +803,7 @@ static inline void ClearPageSlabPfmemalloc(struct page *page)
 	 1UL << PG_private	| 1UL << PG_private_2	|	\
 	 1UL << PG_writeback	| 1UL << PG_reserved	|	\
 	 1UL << PG_slab		| 1UL << PG_active 	|	\
-	 1UL << PG_unevictable	| __PG_MLOCKED)
+	 1UL << PG_unevictable	| __PG_MLOCKED | LRU_GEN_MASK)
 
 /*
  * Flags checked when a page is prepped for return by the page allocator.
@@ -814,7 +814,7 @@ static inline void ClearPageSlabPfmemalloc(struct page *page)
  * alloc-free cycle to prevent from reusing the page.
  */
 #define PAGE_FLAGS_CHECK_AT_PREP	\
-	(((1UL << NR_PAGEFLAGS) - 1) & ~__PG_HWPOISON)
+	((((1UL << NR_PAGEFLAGS) - 1) & ~__PG_HWPOISON) | LRU_GEN_MASK | LRU_REFS_MASK)
 
 #define PAGE_FLAGS_PRIVATE				\
 	(1UL << PG_private | 1UL << PG_private_2)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 637d25c313740..df2259962ba1e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -835,6 +835,10 @@ struct task_struct {
 #ifdef CONFIG_MEMCG
 	unsigned			in_user_fault:1;
 #endif
+#ifdef CONFIG_LRU_GEN
+	/* whether the LRU algorithm may apply to this access */
+	unsigned			in_lru_fault:1;
+#endif
 #ifdef CONFIG_COMPAT_BRK
 	unsigned			brk_randomized:1;
 #endif
diff --git a/kernel/bounds.c b/kernel/bounds.c
index 9795d75b09b23..e08fb89f87f47 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -22,6 +22,13 @@ int main(void)
 	DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
 #endif
 	DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
+#ifdef CONFIG_LRU_GEN
+	DEFINE(LRU_GEN_WIDTH, order_base_2(MAX_NR_GENS + 1));
+	DEFINE(LRU_REFS_WIDTH, 0);
+#else
+	DEFINE(LRU_GEN_WIDTH, 0);
+	DEFINE(LRU_REFS_WIDTH, 0);
+#endif
 	/* End of constants */
 
 	return 0;
diff --git a/mm/Kconfig b/mm/Kconfig
index 7853ccc1c9359..46a23f65c4d25 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -907,4 +907,12 @@ config ANON_VMA_NAME
 	  area from being merged with adjacent virtual memory areas due to the
 	  difference in their name.
 
+config LRU_GEN
+	bool "Multi-Gen LRU"
+	depends on MMU
+	# the following options can use up the spare bits in page flags
+	depends on !MAXSMP && (64BIT || !SPARSEMEM || SPARSEMEM_VMEMMAP)
+	help
+	  A high performance LRU implementation to overcommit memory.
+
 endmenu
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 1eea5787fd639..123f3e0328712 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2402,7 +2402,8 @@ static void __split_huge_page_tail(struct page *head, int tail,
 #ifdef CONFIG_64BIT
 			 (1L << PG_arch_2) |
 #endif
-			 (1L << PG_dirty)));
+			 (1L << PG_dirty) |
+			 LRU_GEN_MASK | LRU_REFS_MASK));
 
 	/* ->mapping in first tail page is compound_mapcount */
 	VM_BUG_ON_PAGE(tail > 2 && page_tail->mapping != TAIL_MAPPING,
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ece377d5f6819..ebe2fd121c45a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5254,6 +5254,7 @@ static void __mem_cgroup_free(struct mem_cgroup *memcg)
 
 static void mem_cgroup_free(struct mem_cgroup *memcg)
 {
+	lru_gen_exit_memcg(memcg);
 	memcg_wb_domain_exit(memcg);
 	/*
 	 * Flush percpu vmstats and vmevents to guarantee the value correctness
@@ -5329,6 +5330,7 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
 #endif
 	idr_replace(&mem_cgroup_idr, memcg, memcg->id.id);
 	trace_android_vh_mem_cgroup_alloc(memcg);
+	lru_gen_init_memcg(memcg);
 	return memcg;
 fail:
 	mem_cgroup_id_remove(memcg);
diff --git a/mm/memory.c b/mm/memory.c
index fb569dd9489f7..a201cf3a558dd 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5159,6 +5159,27 @@ bool can_reuse_spf_vma(struct vm_area_struct *vma, unsigned long address)
 }
 #endif /* CONFIG_SPECULATIVE_PAGE_FAULT */
 
+#ifdef CONFIG_LRU_GEN
+static void lru_gen_enter_fault(struct vm_area_struct *vma)
+{
+	/* the LRU algorithm doesn't apply to sequential or random reads */
+	current->in_lru_fault = !(vma->vm_flags & (VM_SEQ_READ | VM_RAND_READ));
+}
+
+static void lru_gen_exit_fault(void)
+{
+	current->in_lru_fault = false;
+}
+#else
+static void lru_gen_enter_fault(struct vm_area_struct *vma)
+{
+}
+
+static void lru_gen_exit_fault(void)
+{
+}
+#endif /* CONFIG_LRU_GEN */
+
 /*
  * By the time we get here, we already hold the mm semaphore
  *
@@ -5190,11 +5211,15 @@ vm_fault_t handle_mm_fault(struct vm_area_struct *vma, unsigned long address,
 	if (flags & FAULT_FLAG_USER)
 		mem_cgroup_enter_user_fault();
 
+	lru_gen_enter_fault(vma);
+
 	if (unlikely(is_vm_hugetlb_page(vma)))
 		ret = hugetlb_fault(vma->vm_mm, vma, address, flags);
 	else
 		ret = __handle_mm_fault(vma, address, flags);
 
+	lru_gen_exit_fault();
+
 	if (flags & FAULT_FLAG_USER) {
 		mem_cgroup_exit_user_fault();
 		/*
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 954f0f93bb8a9..9351e8a25a80d 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -65,14 +65,16 @@ void __init mminit_verify_pageflags_layout(void)
 
 	shift = 8 * sizeof(unsigned long);
 	width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH
-		- LAST_CPUPID_SHIFT - KASAN_TAG_WIDTH;
+		- LAST_CPUPID_SHIFT - KASAN_TAG_WIDTH - LRU_GEN_WIDTH - LRU_REFS_WIDTH;
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths",
-		"Section %d Node %d Zone %d Lastcpupid %d Kasantag %d Flags %d\n",
+		"Section %d Node %d Zone %d Lastcpupid %d Kasantag %d Gen %d Tier %d Flags %d\n",
 		SECTIONS_WIDTH,
 		NODES_WIDTH,
 		ZONES_WIDTH,
 		LAST_CPUPID_WIDTH,
 		KASAN_TAG_WIDTH,
+		LRU_GEN_WIDTH,
+		LRU_REFS_WIDTH,
 		NR_PAGEFLAGS);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_shifts",
 		"Section %d Node %d Zone %d Lastcpupid %d Kasantag %d\n",
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 2241281ffe167..1470eea5454ae 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -96,6 +96,8 @@ void lruvec_init(struct lruvec *lruvec)
 
 	for_each_lru(lru)
 		INIT_LIST_HEAD(&lruvec->lists[lru]);
+
+	lru_gen_init_lruvec(lruvec);
 }
 
 #if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_CPUPID_NOT_IN_PAGE_FLAGS)
diff --git a/mm/swap.c b/mm/swap.c
index f2f04faba70cb..66f71e5251beb 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -477,6 +477,11 @@ void lru_cache_add(struct page *page)
 	VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page);
 	VM_BUG_ON_PAGE(PageLRU(page), page);
 
+	/* see the comment in lru_gen_add_page() */
+	if (lru_gen_enabled() && !PageUnevictable(page) &&
+	    lru_gen_in_fault() && !(current->flags & PF_MEMALLOC))
+		SetPageActive(page);
+
 	get_page(page);
 	local_lock(&lru_pvecs.lock);
 	pvec = this_cpu_ptr(&lru_pvecs.lru_add);
@@ -583,7 +588,7 @@ static void lru_deactivate_file_fn(struct page *page, struct lruvec *lruvec,
 static void lru_deactivate_fn(struct page *page, struct lruvec *lruvec,
 			    void *arg)
 {
-	if (PageLRU(page) && PageActive(page) && !PageUnevictable(page)) {
+	if (PageLRU(page) && !PageUnevictable(page) && (PageActive(page) || lru_gen_enabled())) {
 		int nr_pages = thp_nr_pages(page);
 
 		del_page_from_lru_list(page, lruvec);
@@ -720,7 +725,7 @@ void deactivate_file_page(struct page *page)
  */
 void deactivate_page(struct page *page)
 {
-	if (PageLRU(page) && PageActive(page) && !PageUnevictable(page)) {
+	if (PageLRU(page) && !PageUnevictable(page) && (PageActive(page) || lru_gen_enabled())) {
 		struct pagevec *pvec;
 
 		local_lock(&lru_pvecs.lock);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6de728db3053b..b8cca583de7d0 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2591,6 +2591,81 @@ out:
 	}
 }
 
+#ifdef CONFIG_LRU_GEN
+
+/******************************************************************************
+ *                          shorthand helpers
+ ******************************************************************************/
+
+#define for_each_gen_type_zone(gen, type, zone)				\
+	for ((gen) = 0; (gen) < MAX_NR_GENS; (gen)++)			\
+		for ((type) = 0; (type) < ANON_AND_FILE; (type)++)	\
+			for ((zone) = 0; (zone) < MAX_NR_ZONES; (zone)++)
+
+static struct lruvec *get_lruvec(struct mem_cgroup *memcg, int nid)
+{
+	struct pglist_data *pgdat = NODE_DATA(nid);
+
+#ifdef CONFIG_MEMCG
+	if (memcg) {
+		struct lruvec *lruvec = &memcg->nodeinfo[nid]->lruvec;
+
+		/* for hotadd_new_pgdat() */
+		if (!lruvec->pgdat)
+			lruvec->pgdat = pgdat;
+
+		return lruvec;
+	}
+#endif
+	VM_BUG_ON(!mem_cgroup_disabled());
+
+	return pgdat ? &pgdat->__lruvec : NULL;
+}
+
+/******************************************************************************
+ *                          initialization
+ ******************************************************************************/
+
+void lru_gen_init_lruvec(struct lruvec *lruvec)
+{
+	int gen, type, zone;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	lrugen->max_seq = MIN_NR_GENS + 1;
+
+	for_each_gen_type_zone(gen, type, zone)
+		INIT_LIST_HEAD(&lrugen->lists[gen][type][zone]);
+}
+
+#ifdef CONFIG_MEMCG
+void lru_gen_init_memcg(struct mem_cgroup *memcg)
+{
+}
+
+void lru_gen_exit_memcg(struct mem_cgroup *memcg)
+{
+	int nid;
+
+	for_each_node(nid) {
+		struct lruvec *lruvec = get_lruvec(memcg, nid);
+
+		VM_BUG_ON(memchr_inv(lruvec->lrugen.nr_pages, 0,
+				     sizeof(lruvec->lrugen.nr_pages)));
+	}
+}
+#endif
+
+static int __init init_lru_gen(void)
+{
+	BUILD_BUG_ON(MIN_NR_GENS + 1 >= MAX_NR_GENS);
+	BUILD_BUG_ON(BIT(LRU_GEN_WIDTH) <= MAX_NR_GENS);
+
+	return 0;
+};
+late_initcall(init_lru_gen);
+
+#endif /* CONFIG_LRU_GEN */
+
 static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
 {
 	unsigned long nr[NR_LRU_LISTS];
-- 
GitLab


From 436dff20ebac67927643de9cfbc3ecca2c22cf4b Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 20:32:37 -0700
Subject: [PATCH 4721/4878] FROMLIST: mm: multi-gen LRU: minimal implementation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

To avoid confusion, the terms "promotion" and "demotion" will be
applied to the multi-gen LRU, as a new convention; the terms
"activation" and "deactivation" will be applied to the active/inactive
LRU, as usual.

The aging produces young generations. Given an lruvec, it increments
max_seq when max_seq-min_seq+1 approaches MIN_NR_GENS. The aging
promotes hot pages to the youngest generation when it finds them
accessed through page tables; the demotion of cold pages happens
consequently when it increments max_seq. The aging has the complexity
O(nr_hot_pages), since it is only interested in hot pages. Promotion
in the aging path does not require any LRU list operations, only the
updates of the gen counter and lrugen->nr_pages[]; demotion, unless as
the result of the increment of max_seq, requires LRU list operations,
e.g., lru_deactivate_fn().

The eviction consumes old generations. Given an lruvec, it increments
min_seq when the lists indexed by min_seq%MAX_NR_GENS become empty. A
feedback loop modeled after the PID controller monitors refaults over
anon and file types and decides which type to evict when both types
are available from the same generation.

Each generation is divided into multiple tiers. Tiers represent
different ranges of numbers of accesses through file descriptors. A
page accessed N times through file descriptors is in tier
order_base_2(N). Tiers do not have dedicated lrugen->lists[], only
bits in page->flags. In contrast to moving across generations, which
requires the LRU lock, moving across tiers only involves operations on
page->flags. The feedback loop also monitors refaults over all tiers
and decides when to protect pages in which tiers (N>1), using the
first tier (N=0,1) as a baseline. The first tier contains single-use
unmapped clean pages, which are most likely the best choices. The
eviction moves a page to the next generation, i.e., min_seq+1, if the
feedback loop decides so. This approach has the following advantages:
1. It removes the cost of activation in the buffered access path by
   inferring whether pages accessed multiple times through file
   descriptors are statistically hot and thus worth protecting in the
   eviction path.
2. It takes pages accessed through page tables into account and avoids
   overprotecting pages accessed multiple times through file
   descriptors. (Pages accessed through page tables are in the first
   tier, since N=0.)
3. More tiers provide better protection for pages accessed more than
   twice through file descriptors, when under heavy buffered I/O
   workloads.

Server benchmark results:
  Single workload:
    fio (buffered I/O): +[38, 40]%
                         IOPS         BW
      5.18-ed4643521e6a: 2547k        9989MiB/s
      patch1-6:          3540k        13.5GiB/s

  Single workload:
    memcached (anon): +[103, 107]%
                         Ops/sec      KB/sec
      5.18-ed4643521e6a: 469048.66    18243.91
      patch1-6:          964656.80    37520.88

  Configurations:
    CPU: two Xeon 6154
    Mem: total 256G

    Node 1 was only used as a ram disk to reduce the variance in the
    results.

    patch drivers/block/brd.c <<EOF
    99,100c99,100
    < 	gfp_flags = GFP_NOIO | __GFP_ZERO | __GFP_HIGHMEM;
    < 	page = alloc_page(gfp_flags);
    ---
    > 	gfp_flags = GFP_NOIO | __GFP_ZERO | __GFP_HIGHMEM | __GFP_THISNODE;
    > 	page = alloc_pages_node(1, gfp_flags, 0);
    EOF

    cat >>/etc/systemd/system.conf <<EOF
    CPUAffinity=numa
    NUMAPolicy=bind
    NUMAMask=0
    EOF

    cat >>/etc/memcached.conf <<EOF
    -m 184320
    -s /var/run/memcached/memcached.sock
    -a 0766
    -t 36
    -B binary
    EOF

    cat fio.sh
    modprobe brd rd_nr=1 rd_size=113246208
    swapoff -a
    mkfs.ext4 /dev/ram0
    mount -t ext4 /dev/ram0 /mnt

    mkdir /sys/fs/cgroup/user.slice/test
    echo 38654705664 >/sys/fs/cgroup/user.slice/test/memory.max
    echo $$ >/sys/fs/cgroup/user.slice/test/cgroup.procs
    fio -name=mglru --numjobs=72 --directory=/mnt --size=1408m \
      --buffered=1 --ioengine=io_uring --iodepth=128 \
      --iodepth_batch_submit=32 --iodepth_batch_complete=32 \
      --rw=randread --random_distribution=random --norandommap \
      --time_based --ramp_time=10m --runtime=5m --group_reporting

    cat memcached.sh
    modprobe brd rd_nr=1 rd_size=113246208
    swapoff -a
    mkswap /dev/ram0
    swapon /dev/ram0

    memtier_benchmark -S /var/run/memcached/memcached.sock \
      -P memcache_binary -n allkeys --key-minimum=1 \
      --key-maximum=65000000 --key-pattern=P:P -c 1 -t 36 \
      --ratio 1:0 --pipeline 8 -d 2000

    memtier_benchmark -S /var/run/memcached/memcached.sock \
      -P memcache_binary -n allkeys --key-minimum=1 \
      --key-maximum=65000000 --key-pattern=R:R -c 1 -t 36 \
      --ratio 0:1 --pipeline 8 --randomize --distinct-client-seed

Client benchmark results:
  kswapd profiles:
    5.18-ed4643521e6a
      39.56%  page_vma_mapped_walk
      19.32%  lzo1x_1_do_compress (real work)
       7.18%  do_raw_spin_lock
       4.23%  _raw_spin_unlock_irq
       2.26%  vma_interval_tree_subtree_search
       2.12%  vma_interval_tree_iter_next
       2.11%  folio_referenced_one
       1.90%  anon_vma_interval_tree_iter_first
       1.47%  ptep_clear_flush
       0.97%  __anon_vma_interval_tree_subtree_search

    patch1-6
      36.13%  lzo1x_1_do_compress (real work)
      19.16%  page_vma_mapped_walk
       6.55%  _raw_spin_unlock_irq
       4.02%  do_raw_spin_lock
       2.32%  anon_vma_interval_tree_iter_first
       2.11%  ptep_clear_flush
       1.76%  __zram_bvec_write
       1.64%  folio_referenced_one
       1.40%  memmove
       1.35%  obj_malloc

  Configurations:
    CPU: single Snapdragon 7c
    Mem: total 4G

    Chrome OS MemoryPressure [1]

[1] https://chromium.googlesource.com/chromiumos/platform/tast-tests/

Link: https://lore.kernel.org/r/20220309021230.721028-7-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I3fe4850006d7984cd9f4fd46134b826609dc2f86
---
 include/linux/mm_inline.h |  24 ++
 include/linux/mmzone.h    |  41 ++
 kernel/bounds.c           |   2 +-
 mm/Kconfig                |  11 +
 mm/swap.c                 |  42 ++
 mm/vmscan.c               | 804 +++++++++++++++++++++++++++++++++++++-
 mm/workingset.c           | 119 +++++-
 7 files changed, 1039 insertions(+), 4 deletions(-)

diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 9c71c4757cf3a..68b60463dfc3e 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -106,6 +106,19 @@ static inline int lru_gen_from_seq(unsigned long seq)
 	return seq % MAX_NR_GENS;
 }
 
+static inline int lru_hist_from_seq(unsigned long seq)
+{
+	return seq % NR_HIST_GENS;
+}
+
+static inline int lru_tier_from_refs(int refs)
+{
+	VM_BUG_ON(refs > BIT(LRU_REFS_WIDTH));
+
+	/* see the comment on MAX_NR_TIERS */
+	return order_base_2(refs + 1);
+}
+
 static inline bool lru_gen_is_active(struct lruvec *lruvec, int gen)
 {
 	unsigned long max_seq = lruvec->lrugen.max_seq;
@@ -151,6 +164,15 @@ static inline void lru_gen_update_size(struct lruvec *lruvec, struct page *page,
 		__update_lru_size(lruvec, lru, zone, -delta);
 		return;
 	}
+
+	/* promotion */
+	if (!lru_gen_is_active(lruvec, old_gen) && lru_gen_is_active(lruvec, new_gen)) {
+		__update_lru_size(lruvec, lru, zone, -delta);
+		__update_lru_size(lruvec, lru + LRU_ACTIVE, zone, delta);
+	}
+
+	/* demotion requires isolation, e.g., lru_deactivate_fn() */
+	VM_BUG_ON(lru_gen_is_active(lruvec, old_gen) && !lru_gen_is_active(lruvec, new_gen));
 }
 
 static inline bool lru_gen_add_page(struct lruvec *lruvec, struct page *page, bool reclaiming)
@@ -215,6 +237,8 @@ static inline bool lru_gen_del_page(struct lruvec *lruvec, struct page *page, bo
 		gen = ((new_flags & LRU_GEN_MASK) >> LRU_GEN_PGOFF) - 1;
 
 		new_flags &= ~LRU_GEN_MASK;
+		if (!(new_flags & BIT(PG_referenced)))
+			new_flags &= ~(LRU_REFS_MASK | LRU_REFS_FLAGS);
 		/* for shrink_page_list() */
 		if (reclaiming)
 			new_flags &= ~(BIT(PG_referenced) | BIT(PG_reclaim));
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 14eaa2117e1d6..ffb62e88bcfca 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -307,12 +307,34 @@ enum lruvec_flags {
 #define MIN_NR_GENS		2U
 #define MAX_NR_GENS		4U
 
+/*
+ * Each generation is divided into multiple tiers. Tiers represent different
+ * ranges of numbers of accesses through file descriptors. A page accessed N
+ * times through file descriptors is in tier order_base_2(N). A page in the
+ * first tier (N=0,1) is marked by PG_referenced unless it was faulted in
+ * though page tables or read ahead. A page in any other tier (N>1) is marked
+ * by PG_referenced and PG_workingset.
+ *
+ * In contrast to moving across generations which requires the LRU lock, moving
+ * across tiers only requires operations on page->flags and therefore has a
+ * negligible cost in the buffered access path. In the eviction path,
+ * comparisons of refaulted/(evicted+protected) from the first tier and the
+ * rest infer whether pages accessed multiple times through file descriptors
+ * are statistically hot and thus worth protecting.
+ *
+ * MAX_NR_TIERS is set to 4 so that the multi-gen LRU can support twice of the
+ * categories of the active/inactive LRU when keeping track of accesses through
+ * file descriptors. It requires MAX_NR_TIERS-2 additional bits in page->flags.
+ */
+#define MAX_NR_TIERS		4U
+
 #ifndef __GENERATING_BOUNDS_H
 
 struct lruvec;
 
 #define LRU_GEN_MASK		((BIT(LRU_GEN_WIDTH) - 1) << LRU_GEN_PGOFF)
 #define LRU_REFS_MASK		((BIT(LRU_REFS_WIDTH) - 1) << LRU_REFS_PGOFF)
+#define LRU_REFS_FLAGS		(BIT(PG_referenced) | BIT(PG_workingset))
 
 #ifdef CONFIG_LRU_GEN
 
@@ -321,6 +343,16 @@ enum {
 	LRU_GEN_FILE,
 };
 
+#define MIN_LRU_BATCH		BITS_PER_LONG
+#define MAX_LRU_BATCH		(MIN_LRU_BATCH * 128)
+
+/* whether to keep historical stats from evicted generations */
+#ifdef CONFIG_LRU_GEN_STATS
+#define NR_HIST_GENS		MAX_NR_GENS
+#else
+#define NR_HIST_GENS		1U
+#endif
+
 /*
  * The youngest generation number is stored in max_seq for both anon and file
  * types as they are aged on an equal footing. The oldest generation numbers are
@@ -340,6 +372,15 @@ struct lru_gen_struct {
 	struct list_head lists[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES];
 	/* the sizes of the above lists */
 	unsigned long nr_pages[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES];
+	/* the exponential moving average of refaulted */
+	unsigned long avg_refaulted[ANON_AND_FILE][MAX_NR_TIERS];
+	/* the exponential moving average of evicted+protected */
+	unsigned long avg_total[ANON_AND_FILE][MAX_NR_TIERS];
+	/* the first tier doesn't need protection, hence the minus one */
+	unsigned long protected[NR_HIST_GENS][ANON_AND_FILE][MAX_NR_TIERS - 1];
+	/* can be modified without holding the LRU lock */
+	atomic_long_t evicted[NR_HIST_GENS][ANON_AND_FILE][MAX_NR_TIERS];
+	atomic_long_t refaulted[NR_HIST_GENS][ANON_AND_FILE][MAX_NR_TIERS];
 };
 
 void lru_gen_init_lruvec(struct lruvec *lruvec);
diff --git a/kernel/bounds.c b/kernel/bounds.c
index e08fb89f87f47..10dd9e6b03e55 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -24,7 +24,7 @@ int main(void)
 	DEFINE(SPINLOCK_SIZE, sizeof(spinlock_t));
 #ifdef CONFIG_LRU_GEN
 	DEFINE(LRU_GEN_WIDTH, order_base_2(MAX_NR_GENS + 1));
-	DEFINE(LRU_REFS_WIDTH, 0);
+	DEFINE(LRU_REFS_WIDTH, MAX_NR_TIERS - 2);
 #else
 	DEFINE(LRU_GEN_WIDTH, 0);
 	DEFINE(LRU_REFS_WIDTH, 0);
diff --git a/mm/Kconfig b/mm/Kconfig
index 46a23f65c4d25..d78a43ae35c82 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -907,6 +907,7 @@ config ANON_VMA_NAME
 	  area from being merged with adjacent virtual memory areas due to the
 	  difference in their name.
 
+# multi-gen LRU {
 config LRU_GEN
 	bool "Multi-Gen LRU"
 	depends on MMU
@@ -915,4 +916,14 @@ config LRU_GEN
 	help
 	  A high performance LRU implementation to overcommit memory.
 
+config LRU_GEN_STATS
+	bool "Full stats for debugging"
+	depends on LRU_GEN
+	help
+	  Do not enable this option unless you plan to look at historical stats
+	  from evicted generations for debugging purpose.
+
+	  This option has a per-memcg and per-node memory overhead.
+# }
+
 endmenu
diff --git a/mm/swap.c b/mm/swap.c
index 66f71e5251beb..864a122872404 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -420,6 +420,43 @@ static void __lru_cache_activate_page(struct page *page)
 	local_unlock(&lru_pvecs.lock);
 }
 
+#ifdef CONFIG_LRU_GEN
+static void page_inc_refs(struct page *page)
+{
+	unsigned long refs;
+	unsigned long old_flags, new_flags;
+
+	if (PageUnevictable(page))
+		return;
+
+	/* see the comment on MAX_NR_TIERS */
+	do {
+		new_flags = old_flags = READ_ONCE(page->flags);
+
+		if (!(new_flags & BIT(PG_referenced))) {
+			new_flags |= BIT(PG_referenced);
+			continue;
+		}
+
+		if (!(new_flags & BIT(PG_workingset))) {
+			new_flags |= BIT(PG_workingset);
+			continue;
+		}
+
+		refs = new_flags & LRU_REFS_MASK;
+		refs = min(refs + BIT(LRU_REFS_PGOFF), LRU_REFS_MASK);
+
+		new_flags &= ~LRU_REFS_MASK;
+		new_flags |= refs;
+	} while (new_flags != old_flags &&
+		 cmpxchg(&page->flags, old_flags, new_flags) != old_flags);
+}
+#else
+static void page_inc_refs(struct page *page)
+{
+}
+#endif /* CONFIG_LRU_GEN */
+
 /*
  * Mark a page as having seen activity.
  *
@@ -434,6 +471,11 @@ void mark_page_accessed(struct page *page)
 {
 	page = compound_head(page);
 
+	if (lru_gen_enabled()) {
+		page_inc_refs(page);
+		return;
+	}
+
 	if (!PageReferenced(page)) {
 		SetPageReferenced(page);
 	} else if (PageUnevictable(page)) {
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b8cca583de7d0..333ce42d7c7d0 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -931,9 +931,11 @@ static int __remove_mapping(struct address_space *mapping, struct page *page,
 
 	if (PageSwapCache(page)) {
 		swp_entry_t swap = { .val = page_private(page) };
-		mem_cgroup_swapout(page, swap);
+
+		/* get a shadow entry before mem_cgroup_swapout() clears page_memcg() */
 		if (reclaimed && !mapping_exiting(mapping))
 			shadow = workingset_eviction(page, target_memcg);
+		mem_cgroup_swapout(page, swap);
 		__delete_from_swap_cache(page, swap, shadow);
 		xa_unlock_irqrestore(&mapping->i_pages, flags);
 		put_swap_page(page, swap);
@@ -2287,6 +2289,9 @@ static void prepare_scan_count(pg_data_t *pgdat, struct scan_control *sc)
 	unsigned long file;
 	struct lruvec *target_lruvec;
 
+	if (lru_gen_enabled())
+		return;
+
 	target_lruvec = mem_cgroup_lruvec(sc->target_mem_cgroup, pgdat);
 
 	/*
@@ -2597,11 +2602,38 @@ out:
  *                          shorthand helpers
  ******************************************************************************/
 
+#define DEFINE_MAX_SEQ(lruvec)						\
+	unsigned long max_seq = READ_ONCE((lruvec)->lrugen.max_seq)
+
+#define DEFINE_MIN_SEQ(lruvec)						\
+	unsigned long min_seq[ANON_AND_FILE] = {			\
+		READ_ONCE((lruvec)->lrugen.min_seq[LRU_GEN_ANON]),	\
+		READ_ONCE((lruvec)->lrugen.min_seq[LRU_GEN_FILE]),	\
+	}
+
 #define for_each_gen_type_zone(gen, type, zone)				\
 	for ((gen) = 0; (gen) < MAX_NR_GENS; (gen)++)			\
 		for ((type) = 0; (type) < ANON_AND_FILE; (type)++)	\
 			for ((zone) = 0; (zone) < MAX_NR_ZONES; (zone)++)
 
+static int page_lru_gen(struct page *page)
+{
+	unsigned long flags = READ_ONCE(page->flags);
+
+	return ((flags & LRU_GEN_MASK) >> LRU_GEN_PGOFF) - 1;
+}
+
+static int page_lru_tier(struct page *page)
+{
+	int refs;
+	unsigned long flags = READ_ONCE(page->flags);
+
+	refs = (flags & LRU_REFS_FLAGS) == LRU_REFS_FLAGS ?
+	       ((flags & LRU_REFS_MASK) >> LRU_REFS_PGOFF) + 1 : 0;
+
+	return lru_tier_from_refs(refs);
+}
+
 static struct lruvec *get_lruvec(struct mem_cgroup *memcg, int nid)
 {
 	struct pglist_data *pgdat = NODE_DATA(nid);
@@ -2622,6 +2654,753 @@ static struct lruvec *get_lruvec(struct mem_cgroup *memcg, int nid)
 	return pgdat ? &pgdat->__lruvec : NULL;
 }
 
+static int get_swappiness(struct lruvec *lruvec, struct scan_control *sc)
+{
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+
+	if (mem_cgroup_get_nr_swap_pages(memcg) < MIN_LRU_BATCH)
+		return 0;
+
+	return mem_cgroup_swappiness(memcg);
+}
+
+static int get_nr_gens(struct lruvec *lruvec, int type)
+{
+	return lruvec->lrugen.max_seq - lruvec->lrugen.min_seq[type] + 1;
+}
+
+static bool __maybe_unused seq_is_valid(struct lruvec *lruvec)
+{
+	/* see the comment on lru_gen_struct */
+	return get_nr_gens(lruvec, LRU_GEN_FILE) >= MIN_NR_GENS &&
+	       get_nr_gens(lruvec, LRU_GEN_FILE) <= get_nr_gens(lruvec, LRU_GEN_ANON) &&
+	       get_nr_gens(lruvec, LRU_GEN_ANON) <= MAX_NR_GENS;
+}
+
+/******************************************************************************
+ *                          refault feedback loop
+ ******************************************************************************/
+
+/*
+ * A feedback loop based on Proportional-Integral-Derivative (PID) controller.
+ *
+ * The P term is refaulted/(evicted+protected) from a tier in the generation
+ * currently being evicted; the I term is the exponential moving average of the
+ * P term over the generations previously evicted, using the smoothing factor
+ * 1/2; the D term isn't supported.
+ *
+ * The setpoint (SP) is always the first tier of one type; the process variable
+ * (PV) is either any tier of the other type or any other tier of the same
+ * type.
+ *
+ * The error is the difference between the SP and the PV; the correction is
+ * turn off protection when SP>PV or turn on protection when SP<PV.
+ *
+ * For future optimizations:
+ * 1. The D term may discount the other two terms over time so that long-lived
+ *    generations can resist stale information.
+ */
+struct ctrl_pos {
+	unsigned long refaulted;
+	unsigned long total;
+	int gain;
+};
+
+static void read_ctrl_pos(struct lruvec *lruvec, int type, int tier, int gain,
+			  struct ctrl_pos *pos)
+{
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	int hist = lru_hist_from_seq(lrugen->min_seq[type]);
+
+	pos->refaulted = lrugen->avg_refaulted[type][tier] +
+			 atomic_long_read(&lrugen->refaulted[hist][type][tier]);
+	pos->total = lrugen->avg_total[type][tier] +
+		     atomic_long_read(&lrugen->evicted[hist][type][tier]);
+	if (tier)
+		pos->total += lrugen->protected[hist][type][tier - 1];
+	pos->gain = gain;
+}
+
+static void reset_ctrl_pos(struct lruvec *lruvec, int type, bool carryover)
+{
+	int hist, tier;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	bool clear = carryover ? NR_HIST_GENS == 1 : NR_HIST_GENS > 1;
+	unsigned long seq = carryover ? lrugen->min_seq[type] : lrugen->max_seq + 1;
+
+	lockdep_assert_held(&lruvec_pgdat(lruvec)->lru_lock);
+
+	if (!carryover && !clear)
+		return;
+
+	hist = lru_hist_from_seq(seq);
+
+	for (tier = 0; tier < MAX_NR_TIERS; tier++) {
+		if (carryover) {
+			unsigned long sum;
+
+			sum = lrugen->avg_refaulted[type][tier] +
+			      atomic_long_read(&lrugen->refaulted[hist][type][tier]);
+			WRITE_ONCE(lrugen->avg_refaulted[type][tier], sum / 2);
+
+			sum = lrugen->avg_total[type][tier] +
+			      atomic_long_read(&lrugen->evicted[hist][type][tier]);
+			if (tier)
+				sum += lrugen->protected[hist][type][tier - 1];
+			WRITE_ONCE(lrugen->avg_total[type][tier], sum / 2);
+		}
+
+		if (clear) {
+			atomic_long_set(&lrugen->refaulted[hist][type][tier], 0);
+			atomic_long_set(&lrugen->evicted[hist][type][tier], 0);
+			if (tier)
+				WRITE_ONCE(lrugen->protected[hist][type][tier - 1], 0);
+		}
+	}
+}
+
+static bool positive_ctrl_err(struct ctrl_pos *sp, struct ctrl_pos *pv)
+{
+	/*
+	 * Return true if the PV has a limited number of refaults or a lower
+	 * refaulted/total than the SP.
+	 */
+	return pv->refaulted < MIN_LRU_BATCH ||
+	       pv->refaulted * (sp->total + MIN_LRU_BATCH) * sp->gain <=
+	       (sp->refaulted + 1) * pv->total * pv->gain;
+}
+
+/******************************************************************************
+ *                          the aging
+ ******************************************************************************/
+
+static int page_inc_gen(struct lruvec *lruvec, struct page *page, bool reclaiming)
+{
+	unsigned long old_flags, new_flags;
+	int type = page_is_file_lru(page);
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	int new_gen, old_gen = lru_gen_from_seq(lrugen->min_seq[type]);
+
+	do {
+		new_flags = old_flags = READ_ONCE(page->flags);
+		VM_BUG_ON_PAGE(!(new_flags & LRU_GEN_MASK), page);
+
+		new_gen = (old_gen + 1) % MAX_NR_GENS;
+
+		new_flags &= ~LRU_GEN_MASK;
+		new_flags |= (new_gen + 1UL) << LRU_GEN_PGOFF;
+		new_flags &= ~(LRU_REFS_MASK | LRU_REFS_FLAGS);
+		/* for end_page_writeback() */
+		if (reclaiming)
+			new_flags |= BIT(PG_reclaim);
+	} while (cmpxchg(&page->flags, old_flags, new_flags) != old_flags);
+
+	lru_gen_update_size(lruvec, page, old_gen, new_gen);
+
+	return new_gen;
+}
+
+static void inc_min_seq(struct lruvec *lruvec)
+{
+	int type;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	VM_BUG_ON(!seq_is_valid(lruvec));
+
+	for (type = 0; type < ANON_AND_FILE; type++) {
+		if (get_nr_gens(lruvec, type) != MAX_NR_GENS)
+			continue;
+
+		reset_ctrl_pos(lruvec, type, true);
+		WRITE_ONCE(lrugen->min_seq[type], lrugen->min_seq[type] + 1);
+	}
+}
+
+static bool try_to_inc_min_seq(struct lruvec *lruvec, bool can_swap)
+{
+	int gen, type, zone;
+	bool success = false;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	DEFINE_MIN_SEQ(lruvec);
+
+	VM_BUG_ON(!seq_is_valid(lruvec));
+
+	for (type = !can_swap; type < ANON_AND_FILE; type++) {
+		while (min_seq[type] + MIN_NR_GENS <= lrugen->max_seq) {
+			gen = lru_gen_from_seq(min_seq[type]);
+
+			for (zone = 0; zone < MAX_NR_ZONES; zone++) {
+				if (!list_empty(&lrugen->lists[gen][type][zone]))
+					goto next;
+			}
+
+			min_seq[type]++;
+		}
+next:
+		;
+	}
+
+	/* see the comment on lru_gen_struct */
+	if (can_swap) {
+		min_seq[LRU_GEN_ANON] = min(min_seq[LRU_GEN_ANON], min_seq[LRU_GEN_FILE]);
+		min_seq[LRU_GEN_FILE] = max(min_seq[LRU_GEN_ANON], lrugen->min_seq[LRU_GEN_FILE]);
+	}
+
+	for (type = !can_swap; type < ANON_AND_FILE; type++) {
+		if (min_seq[type] == lrugen->min_seq[type])
+			continue;
+
+		reset_ctrl_pos(lruvec, type, true);
+		WRITE_ONCE(lrugen->min_seq[type], min_seq[type]);
+		success = true;
+	}
+
+	return success;
+}
+
+static void inc_max_seq(struct lruvec *lruvec, unsigned long max_seq)
+{
+	int prev, next;
+	int type, zone;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
+
+	spin_lock_irq(&pgdat->lru_lock);
+
+	VM_BUG_ON(!seq_is_valid(lruvec));
+
+	if (max_seq != lrugen->max_seq)
+		goto unlock;
+
+	inc_min_seq(lruvec);
+
+	/*
+	 * Update the active/inactive LRU sizes for compatibility. Both sides of
+	 * the current max_seq need to be covered, since max_seq+1 can overlap
+	 * with min_seq[LRU_GEN_ANON] if swapping is constrained. And if they do
+	 * overlap, cold/hot inversion happens. This can be solved by moving
+	 * pages from min_seq to min_seq+1 but is omitted for simplicity.
+	 */
+	prev = lru_gen_from_seq(lrugen->max_seq - 1);
+	next = lru_gen_from_seq(lrugen->max_seq + 1);
+
+	for (type = 0; type < ANON_AND_FILE; type++) {
+		for (zone = 0; zone < MAX_NR_ZONES; zone++) {
+			enum lru_list lru = type * LRU_INACTIVE_FILE;
+			long delta = lrugen->nr_pages[prev][type][zone] -
+				     lrugen->nr_pages[next][type][zone];
+
+			if (!delta)
+				continue;
+
+			WARN_ON_ONCE(delta != (int)delta);
+
+			__update_lru_size(lruvec, lru, zone, delta);
+			__update_lru_size(lruvec, lru + LRU_ACTIVE, zone, -delta);
+		}
+	}
+
+	for (type = 0; type < ANON_AND_FILE; type++)
+		reset_ctrl_pos(lruvec, type, false);
+
+	/* make sure preceding modifications appear */
+	smp_store_release(&lrugen->max_seq, lrugen->max_seq + 1);
+unlock:
+	spin_unlock_irq(&pgdat->lru_lock);
+}
+
+static long get_nr_evictable(struct lruvec *lruvec, unsigned long max_seq,
+			     unsigned long *min_seq, bool can_swap, bool *need_aging)
+{
+	int gen, type, zone;
+	long old = 0;
+	long young = 0;
+	long total = 0;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	for (type = !can_swap; type < ANON_AND_FILE; type++) {
+		unsigned long seq;
+
+		for (seq = min_seq[type]; seq <= max_seq; seq++) {
+			long size = 0;
+
+			gen = lru_gen_from_seq(seq);
+
+			for (zone = 0; zone < MAX_NR_ZONES; zone++)
+				size += READ_ONCE(lrugen->nr_pages[gen][type][zone]);
+
+			total += size;
+			if (seq == max_seq)
+				young += size;
+			if (seq + MIN_NR_GENS == max_seq)
+				old += size;
+		}
+	}
+
+	/*
+	 * The aging and the eviction is a typical producer-consumer model. The
+	 * aging tries to be lazy to reduce the unnecessary overhead. On the
+	 * other hand, the eviction stalls when the number of generations
+	 * reaches MIN_NR_GENS. So ideally, there should be MIN_NR_GENS+1
+	 * generations, hence the first two if's.
+	 *
+	 * In addition, it's ideal to spread pages out evenly, meaning
+	 * 1/(MIN_NR_GENS+1) of the total number of pages for each generation. A
+	 * reasonable range for this average portion would [1/MIN_NR_GENS,
+	 * 1/(MIN_NR_GENS+2)]. From the consumer's POV, the eviction only cares
+	 * about the lower bound of cold pages, i.e., 1/(MIN_NR_GENS+2), whereas
+	 * from the producer's POV, the aging only cares about the upper bound
+	 * of hot pages, i.e., 1/MIN_NR_GENS.
+	 */
+	if (min_seq[LRU_GEN_FILE] + MIN_NR_GENS > max_seq)
+		*need_aging = true;
+	else if (min_seq[LRU_GEN_FILE] + MIN_NR_GENS < max_seq)
+		*need_aging = false;
+	else if (young * MIN_NR_GENS > total)
+		*need_aging = true;
+	else if (old * (MIN_NR_GENS + 2) < total)
+		*need_aging = true;
+	else
+		*need_aging = false;
+
+	return total > 0 ? total : 0;
+}
+
+static void age_lruvec(struct lruvec *lruvec, struct scan_control *sc)
+{
+	bool need_aging;
+	long nr_to_scan;
+	int swappiness = get_swappiness(lruvec, sc);
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	DEFINE_MAX_SEQ(lruvec);
+	DEFINE_MIN_SEQ(lruvec);
+
+	mem_cgroup_calculate_protection(NULL, memcg);
+
+	if (mem_cgroup_below_min(memcg))
+		return;
+
+	nr_to_scan = get_nr_evictable(lruvec, max_seq, min_seq, swappiness, &need_aging);
+	if (!nr_to_scan)
+		return;
+
+	nr_to_scan >>= sc->priority;
+
+	if (!mem_cgroup_online(memcg))
+		nr_to_scan++;
+
+	if (nr_to_scan && need_aging && (!mem_cgroup_below_low(memcg) || sc->memcg_low_reclaim))
+		inc_max_seq(lruvec, max_seq);
+}
+
+static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
+{
+	struct mem_cgroup *memcg;
+
+	VM_BUG_ON(!current_is_kswapd());
+
+	memcg = mem_cgroup_iter(NULL, NULL, NULL);
+	do {
+		struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat);
+
+		age_lruvec(lruvec, sc);
+
+		cond_resched();
+	} while ((memcg = mem_cgroup_iter(NULL, memcg, NULL)));
+}
+
+/******************************************************************************
+ *                          the eviction
+ ******************************************************************************/
+
+static bool sort_page(struct lruvec *lruvec, struct page *page, int tier_idx)
+{
+	bool success;
+	int gen = page_lru_gen(page);
+	int type = page_is_file_lru(page);
+	int zone = page_zonenum(page);
+	int tier = page_lru_tier(page);
+	int delta = thp_nr_pages(page);
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	VM_BUG_ON_PAGE(gen >= MAX_NR_GENS, page);
+
+	if (!page_evictable(page)) {
+		success = lru_gen_del_page(lruvec, page, true);
+		VM_BUG_ON_PAGE(!success, page);
+		SetPageUnevictable(page);
+		add_page_to_lru_list(page, lruvec);
+		__count_vm_events(UNEVICTABLE_PGCULLED, delta);
+		return true;
+	}
+
+	if (type == LRU_GEN_FILE && PageAnon(page) && PageDirty(page)) {
+		success = lru_gen_del_page(lruvec, page, true);
+		VM_BUG_ON_PAGE(!success, page);
+		SetPageSwapBacked(page);
+		add_page_to_lru_list_tail(page, lruvec);
+		return true;
+	}
+
+	if (tier > tier_idx) {
+		int hist = lru_hist_from_seq(lrugen->min_seq[type]);
+
+		gen = page_inc_gen(lruvec, page, false);
+		list_move_tail(&page->lru, &lrugen->lists[gen][type][zone]);
+
+		WRITE_ONCE(lrugen->protected[hist][type][tier - 1],
+			   lrugen->protected[hist][type][tier - 1] + delta);
+		__mod_lruvec_state(lruvec, WORKINGSET_ACTIVATE_BASE + type, delta);
+		return true;
+	}
+
+	if (PageLocked(page) || PageWriteback(page) ||
+	    (type == LRU_GEN_FILE && PageDirty(page))) {
+		gen = page_inc_gen(lruvec, page, true);
+		list_move(&page->lru, &lrugen->lists[gen][type][zone]);
+		return true;
+	}
+
+	return false;
+}
+
+static bool isolate_page(struct lruvec *lruvec, struct page *page, struct scan_control *sc)
+{
+	bool success;
+
+	if (!sc->may_unmap && page_mapped(page))
+		return false;
+
+	if (!(sc->may_writepage && (sc->gfp_mask & __GFP_IO)) &&
+	    (PageDirty(page) || (PageAnon(page) && !PageSwapCache(page))))
+		return false;
+
+	if (!get_page_unless_zero(page))
+		return false;
+
+	ClearPageLRU(page);
+
+	success = lru_gen_del_page(lruvec, page, true);
+	VM_BUG_ON_PAGE(!success, page);
+
+	return true;
+}
+
+static int scan_pages(struct lruvec *lruvec, struct scan_control *sc,
+		      int type, int tier, struct list_head *list)
+{
+	int gen, zone;
+	enum vm_event_item item;
+	int sorted = 0;
+	int scanned = 0;
+	int isolated = 0;
+	int remaining = MAX_LRU_BATCH;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+
+	VM_BUG_ON(!list_empty(list));
+
+	if (get_nr_gens(lruvec, type) == MIN_NR_GENS)
+		return 0;
+
+	gen = lru_gen_from_seq(lrugen->min_seq[type]);
+
+	for (zone = sc->reclaim_idx; zone >= 0; zone--) {
+		LIST_HEAD(moved);
+		int skipped = 0;
+		struct list_head *head = &lrugen->lists[gen][type][zone];
+
+		while (!list_empty(head)) {
+			struct page *page = lru_to_page(head);
+			int delta = thp_nr_pages(page);
+
+			VM_BUG_ON_PAGE(PageTail(page), page);
+			VM_BUG_ON_PAGE(PageUnevictable(page), page);
+			VM_BUG_ON_PAGE(PageActive(page), page);
+			VM_BUG_ON_PAGE(page_is_file_lru(page) != type, page);
+			VM_BUG_ON_PAGE(page_zonenum(page) != zone, page);
+
+			prefetchw_prev_lru_page(page, head, flags);
+
+			scanned += delta;
+
+			if (sort_page(lruvec, page, tier))
+				sorted += delta;
+			else if (isolate_page(lruvec, page, sc)) {
+				list_add(&page->lru, list);
+				isolated += delta;
+			} else {
+				list_move(&page->lru, &moved);
+				skipped += delta;
+			}
+
+			if (!--remaining || max(isolated, skipped) >= MIN_LRU_BATCH)
+				break;
+		}
+
+		if (skipped) {
+			list_splice(&moved, head);
+			__count_zid_vm_events(PGSCAN_SKIP, zone, skipped);
+		}
+
+		if (!remaining || isolated >= MIN_LRU_BATCH)
+			break;
+	}
+
+	item = current_is_kswapd() ? PGSCAN_KSWAPD : PGSCAN_DIRECT;
+	if (!cgroup_reclaim(sc)) {
+		__count_vm_events(item, isolated);
+		__count_vm_events(PGREFILL, sorted);
+	}
+	__count_memcg_events(memcg, item, isolated);
+	__count_memcg_events(memcg, PGREFILL, sorted);
+	__count_vm_events(PGSCAN_ANON + type, isolated);
+
+	/*
+	 * There might not be eligible pages due to reclaim_idx, may_unmap and
+	 * may_writepage. Check the remaining to prevent livelock if there is no
+	 * progress.
+	 */
+	return isolated || !remaining ? scanned : 0;
+}
+
+static int get_tier_idx(struct lruvec *lruvec, int type)
+{
+	int tier;
+	struct ctrl_pos sp, pv;
+
+	/*
+	 * To leave a margin for fluctuations, use a larger gain factor (1:2).
+	 * This value is chosen because any other tier would have at least twice
+	 * as many refaults as the first tier.
+	 */
+	read_ctrl_pos(lruvec, type, 0, 1, &sp);
+	for (tier = 1; tier < MAX_NR_TIERS; tier++) {
+		read_ctrl_pos(lruvec, type, tier, 2, &pv);
+		if (!positive_ctrl_err(&sp, &pv))
+			break;
+	}
+
+	return tier - 1;
+}
+
+static int get_type_to_scan(struct lruvec *lruvec, int swappiness, int *tier_idx)
+{
+	int type, tier;
+	struct ctrl_pos sp, pv;
+	int gain[ANON_AND_FILE] = { swappiness, 200 - swappiness };
+
+	/*
+	 * Compare the first tier of anon with that of file to determine which
+	 * type to scan. Also need to compare other tiers of the selected type
+	 * with the first tier of the other type to determine the last tier (of
+	 * the selected type) to evict.
+	 */
+	read_ctrl_pos(lruvec, LRU_GEN_ANON, 0, gain[LRU_GEN_ANON], &sp);
+	read_ctrl_pos(lruvec, LRU_GEN_FILE, 0, gain[LRU_GEN_FILE], &pv);
+	type = positive_ctrl_err(&sp, &pv);
+
+	read_ctrl_pos(lruvec, !type, 0, gain[!type], &sp);
+	for (tier = 1; tier < MAX_NR_TIERS; tier++) {
+		read_ctrl_pos(lruvec, type, tier, gain[type], &pv);
+		if (!positive_ctrl_err(&sp, &pv))
+			break;
+	}
+
+	*tier_idx = tier - 1;
+
+	return type;
+}
+
+static int isolate_pages(struct lruvec *lruvec, struct scan_control *sc, int swappiness,
+			 int *type_scanned, struct list_head *list)
+{
+	int i;
+	int type;
+	int scanned;
+	int tier = -1;
+	DEFINE_MIN_SEQ(lruvec);
+
+	VM_BUG_ON(!seq_is_valid(lruvec));
+
+	/*
+	 * Try to make the obvious choice first. When anon and file are both
+	 * available from the same generation, interpret swappiness 1 as file
+	 * first and 200 as anon first.
+	 */
+	if (!swappiness)
+		type = LRU_GEN_FILE;
+	else if (min_seq[LRU_GEN_ANON] < min_seq[LRU_GEN_FILE])
+		type = LRU_GEN_ANON;
+	else if (swappiness == 1)
+		type = LRU_GEN_FILE;
+	else if (swappiness == 200)
+		type = LRU_GEN_ANON;
+	else
+		type = get_type_to_scan(lruvec, swappiness, &tier);
+
+	for (i = !swappiness; i < ANON_AND_FILE; i++) {
+		if (tier < 0)
+			tier = get_tier_idx(lruvec, type);
+
+		scanned = scan_pages(lruvec, sc, type, tier, list);
+		if (scanned)
+			break;
+
+		type = !type;
+		tier = -1;
+	}
+
+	*type_scanned = type;
+
+	return scanned;
+}
+
+static int evict_pages(struct lruvec *lruvec, struct scan_control *sc, int swappiness)
+{
+	int type;
+	int scanned;
+	int reclaimed;
+	LIST_HEAD(list);
+	struct page *page;
+	enum vm_event_item item;
+	struct reclaim_stat stat;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
+
+	spin_lock_irq(&pgdat->lru_lock);
+
+	scanned = isolate_pages(lruvec, sc, swappiness, &type, &list);
+
+	if (try_to_inc_min_seq(lruvec, swappiness))
+		scanned++;
+
+	if (get_nr_gens(lruvec, LRU_GEN_FILE) == MIN_NR_GENS)
+		scanned = 0;
+
+	spin_unlock_irq(&pgdat->lru_lock);
+
+	if (list_empty(&list))
+		return scanned;
+
+	reclaimed = shrink_page_list(&list, pgdat, sc, &stat, false);
+
+	/*
+	 * To avoid livelock, don't add rejected pages back to the same lists
+	 * they were isolated from. See lru_gen_add_page().
+	 */
+	list_for_each_entry(page, &list, lru) {
+		ClearPageReferenced(page);
+		ClearPageWorkingset(page);
+
+		if (PageReclaim(page) && (PageDirty(page) || PageWriteback(page)))
+			ClearPageActive(page);
+		else
+			SetPageActive(page);
+	}
+
+	spin_lock_irq(&pgdat->lru_lock);
+
+	move_pages_to_lru(lruvec, &list);
+
+	item = current_is_kswapd() ? PGSTEAL_KSWAPD : PGSTEAL_DIRECT;
+	if (!cgroup_reclaim(sc))
+		__count_vm_events(item, reclaimed);
+	__count_memcg_events(memcg, item, reclaimed);
+	__count_vm_events(PGSTEAL_ANON + type, reclaimed);
+
+	spin_unlock_irq(&pgdat->lru_lock);
+
+	mem_cgroup_uncharge_list(&list);
+	free_unref_page_list(&list);
+
+	sc->nr_reclaimed += reclaimed;
+
+	return scanned;
+}
+
+static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, bool can_swap)
+{
+	bool need_aging;
+	long nr_to_scan;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	DEFINE_MAX_SEQ(lruvec);
+	DEFINE_MIN_SEQ(lruvec);
+
+	if (mem_cgroup_below_min(memcg) ||
+	    (mem_cgroup_below_low(memcg) && !sc->memcg_low_reclaim))
+		return 0;
+
+	nr_to_scan = get_nr_evictable(lruvec, max_seq, min_seq, can_swap, &need_aging);
+	if (!nr_to_scan)
+		return 0;
+
+	/* reset the priority if the target has been met */
+	nr_to_scan >>= sc->nr_reclaimed < sc->nr_to_reclaim ? sc->priority : DEF_PRIORITY;
+
+	if (!mem_cgroup_online(memcg))
+		nr_to_scan++;
+
+	if (!nr_to_scan)
+		return 0;
+
+	if (!need_aging)
+		return nr_to_scan;
+
+	/* leave the work to lru_gen_age_node() */
+	if (current_is_kswapd())
+		return 0;
+
+	/* try other memcgs before going to the aging path */
+	if (!cgroup_reclaim(sc) && !sc->force_deactivate) {
+		sc->skipped_deactivate = true;
+		return 0;
+	}
+
+	inc_max_seq(lruvec, max_seq);
+
+	return nr_to_scan;
+}
+
+static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
+{
+	struct blk_plug plug;
+	long scanned = 0;
+
+	lru_add_drain();
+
+	blk_start_plug(&plug);
+
+	while (true) {
+		int delta;
+		int swappiness;
+		long nr_to_scan;
+
+		if (sc->may_swap)
+			swappiness = get_swappiness(lruvec, sc);
+		else if (!cgroup_reclaim(sc) && get_swappiness(lruvec, sc))
+			swappiness = 1;
+		else
+			swappiness = 0;
+
+		nr_to_scan = get_nr_to_scan(lruvec, sc, swappiness);
+		if (!nr_to_scan)
+			break;
+
+		delta = evict_pages(lruvec, sc, swappiness);
+		if (!delta)
+			break;
+
+		scanned += delta;
+		if (scanned >= nr_to_scan)
+			break;
+
+		cond_resched();
+	}
+
+	blk_finish_plug(&plug);
+}
+
 /******************************************************************************
  *                          initialization
  ******************************************************************************/
@@ -2664,6 +3443,16 @@ static int __init init_lru_gen(void)
 };
 late_initcall(init_lru_gen);
 
+#else
+
+static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
+{
+}
+
+static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
+{
+}
+
 #endif /* CONFIG_LRU_GEN */
 
 static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
@@ -2677,6 +3466,11 @@ static void shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
 	struct blk_plug plug;
 	bool scan_adjusted;
 
+	if (lru_gen_enabled()) {
+		lru_gen_shrink_lruvec(lruvec, sc);
+		return;
+	}
+
 	get_scan_count(lruvec, sc, nr);
 
 	/* Record the original scan target for proportional adjustments later */
@@ -3143,6 +3937,9 @@ static void snapshot_refaults(struct mem_cgroup *target_memcg, pg_data_t *pgdat)
 	struct lruvec *target_lruvec;
 	unsigned long refaults;
 
+	if (lru_gen_enabled())
+		return;
+
 	target_lruvec = mem_cgroup_lruvec(target_memcg, pgdat);
 	refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_ANON);
 	target_lruvec->refaults[0] = refaults;
@@ -3518,6 +4315,11 @@ static void age_active_anon(struct pglist_data *pgdat,
 	struct mem_cgroup *memcg;
 	struct lruvec *lruvec;
 
+	if (lru_gen_enabled()) {
+		lru_gen_age_node(pgdat, sc);
+		return;
+	}
+
 	if (!total_swap_pages)
 		return;
 
diff --git a/mm/workingset.c b/mm/workingset.c
index 975a4d2dd02ee..25eaab8811927 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -185,7 +185,6 @@ static unsigned int bucket_order __read_mostly;
 static void *pack_shadow(int memcgid, pg_data_t *pgdat, unsigned long eviction,
 			 bool workingset)
 {
-	eviction >>= bucket_order;
 	eviction &= EVICTION_MASK;
 	eviction = (eviction << MEM_CGROUP_ID_SHIFT) | memcgid;
 	eviction = (eviction << NODES_SHIFT) | pgdat->node_id;
@@ -210,10 +209,116 @@ static void unpack_shadow(void *shadow, int *memcgidp, pg_data_t **pgdat,
 
 	*memcgidp = memcgid;
 	*pgdat = NODE_DATA(nid);
-	*evictionp = entry << bucket_order;
+	*evictionp = entry;
 	*workingsetp = workingset;
 }
 
+#ifdef CONFIG_LRU_GEN
+
+static int page_lru_refs(struct page *page)
+{
+	unsigned long flags = READ_ONCE(page->flags);
+
+	BUILD_BUG_ON(LRU_GEN_WIDTH + LRU_REFS_WIDTH > BITS_PER_LONG - EVICTION_SHIFT);
+
+	/* see the comment on MAX_NR_TIERS */
+	return flags & BIT(PG_workingset) ? (flags & LRU_REFS_MASK) >> LRU_REFS_PGOFF : 0;
+}
+
+static void *lru_gen_eviction(struct page *page)
+{
+	int hist, tier;
+	unsigned long token;
+	unsigned long min_seq;
+	struct lruvec *lruvec;
+	struct lru_gen_struct *lrugen;
+	int type = page_is_file_lru(page);
+	int refs = page_lru_refs(page);
+	int delta = thp_nr_pages(page);
+	bool workingset = PageWorkingset(page);
+	struct mem_cgroup *memcg = page_memcg(page);
+	struct pglist_data *pgdat = page_pgdat(page);
+
+	lruvec = mem_cgroup_lruvec(memcg, pgdat);
+	lrugen = &lruvec->lrugen;
+	min_seq = READ_ONCE(lrugen->min_seq[type]);
+	token = (min_seq << LRU_REFS_WIDTH) | refs;
+
+	hist = lru_hist_from_seq(min_seq);
+	tier = lru_tier_from_refs(refs + workingset);
+	atomic_long_add(delta, &lrugen->evicted[hist][type][tier]);
+
+	return pack_shadow(mem_cgroup_id(memcg), pgdat, token, workingset);
+}
+
+static void lru_gen_refault(struct page *page, void *shadow)
+{
+	int hist, tier, refs;
+	int memcg_id;
+	bool workingset;
+	unsigned long token;
+	unsigned long min_seq;
+	struct lruvec *lruvec;
+	struct lru_gen_struct *lrugen;
+	struct mem_cgroup *memcg;
+	struct pglist_data *pgdat;
+	int type = page_is_file_lru(page);
+	int delta = thp_nr_pages(page);
+
+	unpack_shadow(shadow, &memcg_id, &pgdat, &token, &workingset);
+
+	refs = token & (BIT(LRU_REFS_WIDTH) - 1);
+	if (refs && !workingset)
+		return;
+
+	if (page_pgdat(page) != pgdat)
+		return;
+
+	rcu_read_lock();
+	memcg = page_memcg_rcu(page);
+	if (mem_cgroup_id(memcg) != memcg_id)
+		goto unlock;
+
+	token >>= LRU_REFS_WIDTH;
+	lruvec = mem_cgroup_lruvec(memcg, pgdat);
+	lrugen = &lruvec->lrugen;
+	min_seq = READ_ONCE(lrugen->min_seq[type]);
+	if (token != (min_seq & (EVICTION_MASK >> LRU_REFS_WIDTH)))
+		goto unlock;
+
+	hist = lru_hist_from_seq(min_seq);
+	tier = lru_tier_from_refs(refs + workingset);
+	atomic_long_add(delta, &lrugen->refaulted[hist][type][tier]);
+	mod_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + type, delta);
+
+	/*
+	 * Count the following two cases as stalls:
+	 * 1. For pages accessed through page tables, hotter pages pushed out
+	 *    hot pages which refaulted immediately.
+	 * 2. For pages accessed through file descriptors, numbers of accesses
+	 *    might have been beyond the limit.
+	 */
+	if (lru_gen_in_fault() || refs + workingset == BIT(LRU_REFS_WIDTH)) {
+		SetPageWorkingset(page);
+		mod_lruvec_state(lruvec, WORKINGSET_RESTORE_BASE + type, delta);
+	}
+unlock:
+	rcu_read_unlock();
+}
+
+#else
+
+static void *lru_gen_eviction(struct page *page)
+{
+	return NULL;
+}
+
+static void lru_gen_refault(struct page *page, void *shadow)
+{
+}
+
+#endif /* CONFIG_LRU_GEN */
+
 /**
  * workingset_age_nonresident - age non-resident entries as LRU ages
  * @lruvec: the lruvec that was aged
@@ -262,11 +367,15 @@ void *workingset_eviction(struct page *page, struct mem_cgroup *target_memcg)
 	VM_BUG_ON_PAGE(page_count(page), page);
 	VM_BUG_ON_PAGE(!PageLocked(page), page);
 
+	if (lru_gen_enabled())
+		return lru_gen_eviction(page);
+
 	lruvec = mem_cgroup_lruvec(target_memcg, pgdat);
 	workingset_age_nonresident(lruvec, thp_nr_pages(page));
 	/* XXX: target_memcg can be NULL, go through lruvec */
 	memcgid = mem_cgroup_id(lruvec_memcg(lruvec));
 	eviction = atomic_long_read(&lruvec->nonresident_age);
+	eviction >>= bucket_order;
 	return pack_shadow(memcgid, pgdat, eviction, PageWorkingset(page));
 }
 
@@ -294,7 +403,13 @@ void workingset_refault(struct page *page, void *shadow)
 	bool workingset;
 	int memcgid;
 
+	if (lru_gen_enabled()) {
+		lru_gen_refault(page, shadow);
+		return;
+	}
+
 	unpack_shadow(shadow, &memcgid, &pgdat, &eviction, &workingset);
+	eviction <<= bucket_order;
 
 	rcu_read_lock();
 	/*
-- 
GitLab


From c8356f7573a6d3a1eba7a6222dbe930162055f3f Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 20:43:22 -0700
Subject: [PATCH 4722/4878] FROMLIST: mm: multi-gen LRU: exploit locality in
 rmap
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Searching the rmap for PTEs mapping each page on an LRU list (to test
and clear the accessed bit) can be expensive because pages from
different VMAs (PA space) are not cache friendly to the rmap (VA
space). For workloads mostly using mapped pages, the rmap has a high
CPU cost in the reclaim path.

This patch exploits spatial locality to reduce the trips into the
rmap. When shrink_page_list() walks the rmap and finds a young PTE, a
new function lru_gen_look_around() scans at most BITS_PER_LONG-1
adjacent PTEs. On finding another young PTE, it clears the accessed
bit and updates the gen counter of the page mapped by this PTE to
(max_seq%MAX_NR_GENS)+1.

Server benchmark results:
  Single workload:
    fio (buffered I/O): no change

  Single workload:
    memcached (anon): +[4, 6]%
                         Ops/sec      KB/sec
      patch1-6:          964656.80    37520.88
      patch1-7:          1014393.57   39455.42

  Configurations:
    no change

Client benchmark results:
  kswapd profiles:
    patch1-6
      36.13%  lzo1x_1_do_compress (real work)
      19.16%  page_vma_mapped_walk
       6.55%  _raw_spin_unlock_irq
       4.02%  do_raw_spin_lock
       2.32%  anon_vma_interval_tree_iter_first
       2.11%  ptep_clear_flush
       1.76%  __zram_bvec_write
       1.64%  folio_referenced_one
       1.40%  memmove
       1.35%  obj_malloc

    patch1-7
      45.54%  lzo1x_1_do_compress (real work)
       9.56%  page_vma_mapped_walk
       6.70%  _raw_spin_unlock_irq
       2.78%  ptep_clear_flush
       2.47%  do_raw_spin_lock
       2.22%  __zram_bvec_write
       1.87%  lru_gen_look_around
       1.78%  memmove
       1.77%  obj_malloc
       1.44%  free_unref_page_list

  Configurations:
    no change

Link: https://lore.kernel.org/r/20220309021230.721028-8-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I9a290343840f3cf925c891c8e360c7cdc24ffb9c
---
 include/linux/memcontrol.h |  29 +++++++
 include/linux/mmzone.h     |   6 ++
 include/linux/swap.h       |   1 +
 mm/memcontrol.c            |   1 +
 mm/rmap.c                  |   7 ++
 mm/swap.c                  |   4 +-
 mm/vmscan.c                | 156 +++++++++++++++++++++++++++++++++++++
 7 files changed, 202 insertions(+), 2 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 6ea0873708b1d..8edbb3f954c4b 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -735,6 +735,23 @@ static inline unsigned long memcg_page_state_local(struct mem_cgroup *memcg,
 
 void __mod_memcg_state(struct mem_cgroup *memcg, int idx, int val);
 
+/* try to stablize page_memcg() for all the pages in a memcg */
+static inline bool mem_cgroup_trylock_pages(struct mem_cgroup *memcg)
+{
+	rcu_read_lock();
+
+	if (mem_cgroup_disabled() || !atomic_read(&memcg->moving_account))
+		return true;
+
+	rcu_read_unlock();
+	return false;
+}
+
+static inline void mem_cgroup_unlock_pages(void)
+{
+	rcu_read_unlock();
+}
+
 /* idx can be of type enum memcg_stat_item or node_stat_item */
 static inline void mod_memcg_state(struct mem_cgroup *memcg,
 				   int idx, int val)
@@ -1153,6 +1170,18 @@ static inline void unlock_page_memcg(struct page *page)
 {
 }
 
+static inline bool mem_cgroup_trylock_pages(struct mem_cgroup *memcg)
+{
+	/* to match page_memcg_rcu() */
+	rcu_read_lock();
+	return true;
+}
+
+static inline void mem_cgroup_unlock_pages(void)
+{
+	rcu_read_unlock();
+}
+
 static inline void mem_cgroup_handle_over_high(void)
 {
 }
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index ffb62e88bcfca..1337e6c2e75fb 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -331,6 +331,7 @@ enum lruvec_flags {
 #ifndef __GENERATING_BOUNDS_H
 
 struct lruvec;
+struct page_vma_mapped_walk;
 
 #define LRU_GEN_MASK		((BIT(LRU_GEN_WIDTH) - 1) << LRU_GEN_PGOFF)
 #define LRU_REFS_MASK		((BIT(LRU_REFS_WIDTH) - 1) << LRU_REFS_PGOFF)
@@ -384,6 +385,7 @@ struct lru_gen_struct {
 };
 
 void lru_gen_init_lruvec(struct lruvec *lruvec);
+void lru_gen_look_around(struct page_vma_mapped_walk *pvmw);
 
 #ifdef CONFIG_MEMCG
 void lru_gen_init_memcg(struct mem_cgroup *memcg);
@@ -396,6 +398,10 @@ static inline void lru_gen_init_lruvec(struct lruvec *lruvec)
 {
 }
 
+static inline void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
+{
+}
+
 #ifdef CONFIG_MEMCG
 static inline void lru_gen_init_memcg(struct mem_cgroup *memcg)
 {
diff --git a/include/linux/swap.h b/include/linux/swap.h
index beda0a50d0b91..b6fd10ff56574 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -350,6 +350,7 @@ extern void lru_add_drain_cpu(int cpu);
 extern void lru_add_drain_cpu_zone(struct zone *zone);
 extern void lru_add_drain_all(void);
 extern void rotate_reclaimable_page(struct page *page);
+extern void activate_page(struct page *page);
 extern void deactivate_file_page(struct page *page);
 extern void deactivate_page(struct page *page);
 extern void mark_page_lazyfree(struct page *page);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ebe2fd121c45a..53b7443c61976 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2883,6 +2883,7 @@ static void commit_charge(struct page *page, struct mem_cgroup *memcg)
 	 * - LRU isolation
 	 * - lock_page_memcg()
 	 * - exclusive reference
+	 * - mem_cgroup_trylock_pages()
 	 */
 	page->mem_cgroup = memcg;
 }
diff --git a/mm/rmap.c b/mm/rmap.c
index 4fdbda090c2c2..52291f59b0b45 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -72,6 +72,7 @@
 #include <linux/page_idle.h>
 #include <linux/memremap.h>
 #include <linux/userfaultfd_k.h>
+#include <linux/mm_inline.h>
 
 #include <asm/tlbflush.h>
 
@@ -782,6 +783,12 @@ static bool page_referenced_one(struct page *page, struct vm_area_struct *vma,
 		}
 
 		if (pvmw.pte) {
+			if (lru_gen_enabled() && pte_young(*pvmw.pte) &&
+			    !(vma->vm_flags & (VM_SEQ_READ | VM_RAND_READ))) {
+				lru_gen_look_around(&pvmw);
+				referenced++;
+			}
+
 			if (ptep_clear_flush_young_notify(vma, address,
 						pvmw.pte)) {
 				/*
diff --git a/mm/swap.c b/mm/swap.c
index 864a122872404..2f69e44ca7374 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -359,7 +359,7 @@ static bool need_activate_page_drain(int cpu)
 	return pagevec_count(&per_cpu(lru_pvecs.activate_page, cpu)) != 0;
 }
 
-static void activate_page(struct page *page)
+void activate_page(struct page *page)
 {
 	page = compound_head(page);
 	if (PageLRU(page) && !PageActive(page) && !PageUnevictable(page)) {
@@ -379,7 +379,7 @@ static inline void activate_page_drain(int cpu)
 {
 }
 
-static void activate_page(struct page *page)
+void activate_page(struct page *page)
 {
 	pg_data_t *pgdat = page_pgdat(page);
 
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 333ce42d7c7d0..6151c1c5bc861 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1146,6 +1146,11 @@ static unsigned int shrink_page_list(struct list_head *page_list,
 		if (!sc->may_unmap && page_mapped(page))
 			goto keep_locked;
 
+		/* page_update_gen() tried to promote this page? */
+		if (lru_gen_enabled() && !ignore_references &&
+		    page_mapped(page) && PageReferenced(page))
+			goto keep_locked;
+
 		may_enter_fs = (sc->gfp_mask & __GFP_FS) ||
 			(PageSwapCache(page) && (sc->gfp_mask & __GFP_IO));
 
@@ -2774,6 +2779,31 @@ static bool positive_ctrl_err(struct ctrl_pos *sp, struct ctrl_pos *pv)
  *                          the aging
  ******************************************************************************/
 
+static int page_update_gen(struct page *page, int gen)
+{
+	unsigned long old_flags, new_flags;
+
+	VM_BUG_ON(gen >= MAX_NR_GENS);
+	VM_BUG_ON(!rcu_read_lock_held());
+
+	do {
+		new_flags = old_flags = READ_ONCE(page->flags);
+
+		/* for shrink_page_list() */
+		if (!(new_flags & LRU_GEN_MASK)) {
+			new_flags |= BIT(PG_referenced);
+			continue;
+		}
+
+		new_flags &= ~LRU_GEN_MASK;
+		new_flags |= (gen + 1UL) << LRU_GEN_PGOFF;
+		new_flags &= ~(LRU_REFS_MASK | LRU_REFS_FLAGS);
+	} while (new_flags != old_flags &&
+		 cmpxchg(&page->flags, old_flags, new_flags) != old_flags);
+
+	return ((old_flags & LRU_GEN_MASK) >> LRU_GEN_PGOFF) - 1;
+}
+
 static int page_inc_gen(struct lruvec *lruvec, struct page *page, bool reclaiming)
 {
 	unsigned long old_flags, new_flags;
@@ -2785,6 +2815,11 @@ static int page_inc_gen(struct lruvec *lruvec, struct page *page, bool reclaimin
 		new_flags = old_flags = READ_ONCE(page->flags);
 		VM_BUG_ON_PAGE(!(new_flags & LRU_GEN_MASK), page);
 
+		new_gen = ((new_flags & LRU_GEN_MASK) >> LRU_GEN_PGOFF) - 1;
+		/* page_update_gen() has promoted this page? */
+		if (new_gen >= 0 && new_gen != old_gen)
+			return new_gen;
+
 		new_gen = (old_gen + 1) % MAX_NR_GENS;
 
 		new_flags &= ~LRU_GEN_MASK;
@@ -3009,6 +3044,122 @@ static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
 	} while ((memcg = mem_cgroup_iter(NULL, memcg, NULL)));
 }
 
+/*
+ * This function exploits spatial locality when shrink_page_list() walks the
+ * rmap. It scans the adjacent PTEs of a young PTE and promotes hot pages.
+ */
+void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
+{
+	int i;
+	pte_t *pte;
+	unsigned long start;
+	unsigned long end;
+	unsigned long addr;
+	struct page *page;
+	unsigned long bitmap[BITS_TO_LONGS(MIN_LRU_BATCH)] = {};
+	struct mem_cgroup *memcg = page_memcg(pvmw->page);
+	struct pglist_data *pgdat = page_pgdat(pvmw->page);
+	struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat);
+	DEFINE_MAX_SEQ(lruvec);
+	int old_gen, new_gen = lru_gen_from_seq(max_seq);
+
+	lockdep_assert_held(pvmw->ptl);
+	VM_BUG_ON_PAGE(PageLRU(pvmw->page), pvmw->page);
+
+	if (spin_is_contended(pvmw->ptl))
+		return;
+
+	start = max(pvmw->address & PMD_MASK, pvmw->vma->vm_start);
+	end = pmd_addr_end(pvmw->address, pvmw->vma->vm_end);
+
+	if (end - start > MIN_LRU_BATCH * PAGE_SIZE) {
+		if (pvmw->address - start < MIN_LRU_BATCH * PAGE_SIZE / 2)
+			end = start + MIN_LRU_BATCH * PAGE_SIZE;
+		else if (end - pvmw->address < MIN_LRU_BATCH * PAGE_SIZE / 2)
+			start = end - MIN_LRU_BATCH * PAGE_SIZE;
+		else {
+			start = pvmw->address - MIN_LRU_BATCH * PAGE_SIZE / 2;
+			end = pvmw->address + MIN_LRU_BATCH * PAGE_SIZE / 2;
+		}
+	}
+
+	pte = pvmw->pte - (pvmw->address - start) / PAGE_SIZE;
+
+	rcu_read_lock();
+	arch_enter_lazy_mmu_mode();
+
+	for (i = 0, addr = start; addr != end; i++, addr += PAGE_SIZE) {
+		unsigned long pfn = pte_pfn(pte[i]);
+
+		VM_BUG_ON(addr < pvmw->vma->vm_start || addr >= pvmw->vma->vm_end);
+
+		if (!pte_present(pte[i]) || is_zero_pfn(pfn))
+			continue;
+
+		if (WARN_ON_ONCE(pte_devmap(pte[i]) || pte_special(pte[i])))
+			continue;
+
+		if (!pte_young(pte[i]))
+			continue;
+
+		VM_BUG_ON(!pfn_valid(pfn));
+		if (pfn < pgdat->node_start_pfn || pfn >= pgdat_end_pfn(pgdat))
+			continue;
+
+		page = compound_head(pfn_to_page(pfn));
+		if (page_to_nid(page) != pgdat->node_id)
+			continue;
+
+		if (page_memcg_rcu(page) != memcg)
+			continue;
+
+		if (!ptep_test_and_clear_young(pvmw->vma, addr, pte + i))
+			continue;
+
+		if (pte_dirty(pte[i]) && !PageDirty(page) &&
+		    !(PageAnon(page) && PageSwapBacked(page) && !PageSwapCache(page)))
+			set_page_dirty(page);
+
+		old_gen = page_lru_gen(page);
+		if (old_gen < 0)
+			SetPageReferenced(page);
+		else if (old_gen != new_gen)
+			__set_bit(i, bitmap);
+	}
+
+	arch_leave_lazy_mmu_mode();
+	rcu_read_unlock();
+
+	if (bitmap_weight(bitmap, MIN_LRU_BATCH) < PAGEVEC_SIZE) {
+		for_each_set_bit(i, bitmap, MIN_LRU_BATCH)
+			activate_page(pte_page(pte[i]));
+		return;
+	}
+
+	/* page_update_gen() requires stable page_memcg() */
+	if (!mem_cgroup_trylock_pages(memcg))
+		return;
+
+	spin_lock_irq(&pgdat->lru_lock);
+	new_gen = lru_gen_from_seq(lruvec->lrugen.max_seq);
+
+	for_each_set_bit(i, bitmap, MIN_LRU_BATCH) {
+		page = compound_head(pte_page(pte[i]));
+		if (page_memcg_rcu(page) != memcg)
+			continue;
+
+		old_gen = page_update_gen(page, new_gen);
+		if (old_gen < 0 || old_gen == new_gen)
+			continue;
+
+		lru_gen_update_size(lruvec, page, old_gen, new_gen);
+	}
+
+	spin_unlock_irq(&pgdat->lru_lock);
+
+	mem_cgroup_unlock_pages();
+}
+
 /******************************************************************************
  *                          the eviction
  ******************************************************************************/
@@ -3042,6 +3193,11 @@ static bool sort_page(struct lruvec *lruvec, struct page *page, int tier_idx)
 		return true;
 	}
 
+	if (gen != lru_gen_from_seq(lrugen->min_seq[type])) {
+		list_move(&page->lru, &lrugen->lists[gen][type][zone]);
+		return true;
+	}
+
 	if (tier > tier_idx) {
 		int hist = lru_hist_from_seq(lrugen->min_seq[type]);
 
-- 
GitLab


From 93c4f8679393aa484505d910270a48aedf454cf4 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 19:23:01 -0700
Subject: [PATCH 4723/4878] FROMLIST: mm: multi-gen LRU: support page table
 walks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

To further exploit spatial locality, the aging prefers to walk page
tables to search for young PTEs and promote hot pages. A kill switch
will be added in the next patch to disable this behavior. When
disabled, the aging relies on the rmap only.

NB: this behavior has nothing similar with the page table scanning in
the 2.4 kernel [1], which searches page tables for old PTEs, adds cold
pages to swapcache and unmaps them.

To avoid confusion, the term "iteration" specifically means the
traversal of an entire mm_struct list; the term "walk" will be applied
to page tables and the rmap, as usual.

An mm_struct list is maintained for each memcg, and an mm_struct
follows its owner task to the new memcg when this task is migrated.
Given an lruvec, the aging iterates lruvec_memcg()->mm_list and calls
walk_page_range() with each mm_struct on this list to promote hot
pages before it increments max_seq.

When multiple page table walkers iterate the same list, each of them
gets a unique mm_struct; therefore they can run concurrently. Page
table walkers ignore any misplaced pages, e.g., if an mm_struct was
migrated, pages it left in the previous memcg will not be promoted
when its current memcg is under reclaim. Similarly, page table walkers
will not promote pages from nodes other than the one under reclaim.

This patch uses the following optimizations when walking page tables:
1. It tracks the usage of mm_struct's between context switches so that
   page table walkers can skip processes that have been sleeping since
   the last iteration.
2. It uses generational Bloom filters to record populated branches so
   that page table walkers can reduce their search space based on the
   query results, e.g., to skip page tables containing mostly holes or
   misplaced pages.
3. It takes advantage of the accessed bit in non-leaf PMD entries when
   CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y.
4. It does not zigzag between a PGD table and the same PMD table
   spanning multiple VMAs. IOW, it finishes all the VMAs within the
   range of the same PMD table before it returns to a PGD table. This
   improves the cache performance for workloads that have large
   numbers of tiny VMAs [2], especially when CONFIG_PGTABLE_LEVELS=5.

Server benchmark results:
  Single workload:
    fio (buffered I/O): no change

  Single workload:
    memcached (anon): +[5.5, 7.5]%
                         Ops/sec      KB/sec
      patch1-7:          1014393.57   39455.42
      patch1-8:          1078507.59   41949.15

  Configurations:
    no change

Client benchmark results:
  kswapd profiles:
    patch1-7
      45.54%  lzo1x_1_do_compress (real work)
       9.56%  page_vma_mapped_walk
       6.70%  _raw_spin_unlock_irq
       2.78%  ptep_clear_flush
       2.47%  do_raw_spin_lock
       2.22%  __zram_bvec_write
       1.87%  lru_gen_look_around
       1.78%  memmove
       1.77%  obj_malloc
       1.44%  free_unref_page_list

    patch1-8
      47.02%  lzo1x_1_do_compress (real work)
       6.73%  page_vma_mapped_walk
       6.14%  _raw_spin_unlock_irq
       3.39%  walk_pte_range
       2.63%  ptep_clear_flush
       2.29%  __zram_bvec_write
       2.10%  do_raw_spin_lock
       1.81%  memmove
       1.73%  obj_malloc
       1.53%  free_unref_page_list

  Configurations:
    no change

[1] https://lwn.net/Articles/23732/
[2] https://source.android.com/devices/tech/debug/scudo

Link: https://lore.kernel.org/r/20220309021230.721028-9-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I5a3c97cf8ebf8d65d5f9528cd979a637c190053e
---
 fs/exec.c                  |   2 +
 include/linux/memcontrol.h |   5 +
 include/linux/mm_types.h   |  79 +++
 include/linux/mmzone.h     |  59 +++
 include/linux/swap.h       |   4 +
 kernel/exit.c              |   1 +
 kernel/fork.c              |   9 +
 kernel/sched/core.c        |   1 +
 mm/memcontrol.c            |  24 +
 mm/vmscan.c                | 973 ++++++++++++++++++++++++++++++++++++-
 10 files changed, 1144 insertions(+), 13 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index 35389eb9dc75c..5b45f14f67f9f 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1010,6 +1010,7 @@ static int exec_mmap(struct mm_struct *mm)
 	active_mm = tsk->active_mm;
 	tsk->active_mm = mm;
 	tsk->mm = mm;
+	lru_gen_add_mm(mm);
 	/*
 	 * This prevents preemption while active_mm is being loaded and
 	 * it and mm are being updated, which could cause problems for
@@ -1022,6 +1023,7 @@ static int exec_mmap(struct mm_struct *mm)
 	activate_mm(active_mm, mm);
 	if (IS_ENABLED(CONFIG_ARCH_WANT_IRQS_OFF_ACTIVATE_MM))
 		local_irq_enable();
+	lru_gen_use_mm(mm);
 	tsk->mm->vmacache_seqnum = 0;
 	vmacache_flush(tsk);
 	task_unlock(tsk);
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 8edbb3f954c4b..531cb39a00f75 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -332,6 +332,11 @@ struct mem_cgroup {
 	struct deferred_split deferred_split_queue;
 #endif
 
+#ifdef CONFIG_LRU_GEN
+	/* per-memcg mm_struct list */
+	struct lru_gen_mm_list mm_list;
+#endif
+
 	ANDROID_OEM_DATA(1);
 	struct mem_cgroup_per_node *nodeinfo[0];
 	/* WARNING: nodeinfo must be the last member here */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 34c04b208968f..48d72db9d86df 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -3,6 +3,7 @@
 #define _LINUX_MM_TYPES_H
 
 #include <linux/mm_types_task.h>
+#include <linux/sched.h>
 
 #include <linux/auxvec.h>
 #include <linux/kref.h>
@@ -16,6 +17,8 @@
 #include <linux/page-flags-layout.h>
 #include <linux/workqueue.h>
 #include <linux/seqlock.h>
+#include <linux/nodemask.h>
+#include <linux/mmdebug.h>
 #include <linux/android_kabi.h>
 
 #include <asm/mmu.h>
@@ -614,6 +617,23 @@ struct mm_struct {
 		u32 pasid;
 #endif
 
+#ifdef CONFIG_LRU_GEN
+		struct {
+			/* this mm_struct is on lru_gen_mm_list */
+			struct list_head list;
+#ifdef CONFIG_MEMCG
+			/* points to the memcg of "owner" above */
+			struct mem_cgroup *memcg;
+#endif
+			/*
+			 * Set when switching to this mm_struct, as a hint of
+			 * whether it has been used since the last time per-node
+			 * page table walkers cleared the corresponding bits.
+			 */
+			nodemask_t nodes;
+		} lru_gen;
+#endif /* CONFIG_LRU_GEN */
+
 		ANDROID_KABI_RESERVE(1);
 	} __randomize_layout;
 
@@ -641,6 +661,65 @@ static inline cpumask_t *mm_cpumask(struct mm_struct *mm)
 	return (struct cpumask *)&mm->cpu_bitmap;
 }
 
+#ifdef CONFIG_LRU_GEN
+
+struct lru_gen_mm_list {
+	/* mm_struct list for page table walkers */
+	struct list_head fifo;
+	/* protects the list above */
+	spinlock_t lock;
+};
+
+void lru_gen_add_mm(struct mm_struct *mm);
+void lru_gen_del_mm(struct mm_struct *mm);
+#ifdef CONFIG_MEMCG
+void lru_gen_migrate_mm(struct mm_struct *mm);
+#endif
+
+static inline void lru_gen_init_mm(struct mm_struct *mm)
+{
+	INIT_LIST_HEAD(&mm->lru_gen.list);
+#ifdef CONFIG_MEMCG
+	mm->lru_gen.memcg = NULL;
+#endif
+	nodes_clear(mm->lru_gen.nodes);
+}
+
+static inline void lru_gen_use_mm(struct mm_struct *mm)
+{
+	/* unlikely but not a bug when racing with lru_gen_migrate_mm() */
+	VM_WARN_ON(list_empty(&mm->lru_gen.list));
+
+	if (!(current->flags & PF_KTHREAD) && !nodes_full(mm->lru_gen.nodes))
+		nodes_setall(mm->lru_gen.nodes);
+}
+
+#else /* !CONFIG_LRU_GEN */
+
+static inline void lru_gen_add_mm(struct mm_struct *mm)
+{
+}
+
+static inline void lru_gen_del_mm(struct mm_struct *mm)
+{
+}
+
+#ifdef CONFIG_MEMCG
+static inline void lru_gen_migrate_mm(struct mm_struct *mm)
+{
+}
+#endif
+
+static inline void lru_gen_init_mm(struct mm_struct *mm)
+{
+}
+
+static inline void lru_gen_use_mm(struct mm_struct *mm)
+{
+}
+
+#endif /* CONFIG_LRU_GEN */
+
 struct mmu_gather;
 extern void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,
 				unsigned long start, unsigned long end);
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 1337e6c2e75fb..d28f9bdd50242 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -384,6 +384,58 @@ struct lru_gen_struct {
 	atomic_long_t refaulted[NR_HIST_GENS][ANON_AND_FILE][MAX_NR_TIERS];
 };
 
+enum {
+	MM_PTE_TOTAL,	/* total leaf entries */
+	MM_PTE_OLD,	/* old leaf entries */
+	MM_PTE_YOUNG,	/* young leaf entries */
+	MM_PMD_TOTAL,	/* total non-leaf entries */
+	MM_PMD_FOUND,	/* non-leaf entries found in Bloom filters */
+	MM_PMD_ADDED,	/* non-leaf entries added to Bloom filters */
+	NR_MM_STATS
+};
+
+/* mnemonic codes for the mm stats above */
+#define MM_STAT_CODES		"toydfa"
+
+/* double-buffering Bloom filters */
+#define NR_BLOOM_FILTERS	2
+
+struct lru_gen_mm_state {
+	/* set to max_seq after each iteration */
+	unsigned long seq;
+	/* where the current iteration starts (inclusive) */
+	struct list_head *head;
+	/* where the last iteration ends (exclusive) */
+	struct list_head *tail;
+	/* to wait for the last page table walker to finish */
+	struct wait_queue_head wait;
+	/* Bloom filters flip after each iteration */
+	unsigned long *filters[NR_BLOOM_FILTERS];
+	/* the mm stats for debugging */
+	unsigned long stats[NR_HIST_GENS][NR_MM_STATS];
+	/* the number of concurrent page table walkers */
+	int nr_walkers;
+};
+
+struct lru_gen_mm_walk {
+	/* the lruvec under reclaim */
+	struct lruvec *lruvec;
+	/* unstable max_seq from lru_gen_struct */
+	unsigned long max_seq;
+	/* the next address within an mm to scan */
+	unsigned long next_addr;
+	/* to batch page table entries */
+	unsigned long bitmap[BITS_TO_LONGS(MIN_LRU_BATCH)];
+	/* to batch promoted pages */
+	int nr_pages[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES];
+	/* to batch the mm stats */
+	int mm_stats[NR_MM_STATS];
+	/* total batched items */
+	int batched;
+	bool can_swap;
+	bool full_scan;
+};
+
 void lru_gen_init_lruvec(struct lruvec *lruvec);
 void lru_gen_look_around(struct page_vma_mapped_walk *pvmw);
 
@@ -432,6 +484,8 @@ struct lruvec {
 #ifdef CONFIG_LRU_GEN
 	/* evictable pages divided into generations */
 	struct lru_gen_struct		lrugen;
+	/* to concurrently iterate lru_gen_mm_list */
+	struct lru_gen_mm_state		mm_state;
 #endif
 #ifdef CONFIG_MEMCG
 	struct pglist_data *pgdat;
@@ -968,6 +1022,11 @@ typedef struct pglist_data {
 
 	unsigned long		flags;
 
+#ifdef CONFIG_LRU_GEN
+	/* kswap mm walk data */
+	struct lru_gen_mm_walk	mm_walk;
+#endif
+
 	ZONE_PADDING(_pad2_)
 
 	/* Per-node vmstats */
diff --git a/include/linux/swap.h b/include/linux/swap.h
index b6fd10ff56574..186b63d7ec140 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -130,6 +130,10 @@ union swap_header {
  */
 struct reclaim_state {
 	unsigned long reclaimed_slab;
+#ifdef CONFIG_LRU_GEN
+	/* per-thread mm walk data */
+	struct lru_gen_mm_walk *mm_walk;
+#endif
 };
 
 #ifdef __KERNEL__
diff --git a/kernel/exit.c b/kernel/exit.c
index f61ac326daabd..24a302ecde59f 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -423,6 +423,7 @@ assign_new_owner:
 		goto retry;
 	}
 	WRITE_ONCE(mm->owner, c);
+	lru_gen_migrate_mm(mm);
 	task_unlock(c);
 	put_task_struct(c);
 }
diff --git a/kernel/fork.c b/kernel/fork.c
index 394593115c8d8..965d97bec20e3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1100,6 +1100,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
 		goto fail_nocontext;
 
 	mm->user_ns = get_user_ns(user_ns);
+	lru_gen_init_mm(mm);
 	return mm;
 
 fail_nocontext:
@@ -1142,6 +1143,7 @@ static inline void __mmput(struct mm_struct *mm)
 	}
 	if (mm->binfmt)
 		module_put(mm->binfmt->module);
+	lru_gen_del_mm(mm);
 	mmdrop(mm);
 }
 
@@ -2537,6 +2539,13 @@ pid_t kernel_clone(struct kernel_clone_args *args)
 		get_task_struct(p);
 	}
 
+	if (IS_ENABLED(CONFIG_LRU_GEN) && !(clone_flags & CLONE_VM)) {
+		/* lock the task to synchronize with memcg migration */
+		task_lock(p);
+		lru_gen_add_mm(p->mm);
+		task_unlock(p);
+	}
+
 	wake_up_new_task(p);
 
 	/* forking complete and child started to run, tell ptracer */
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 6a3af5ba16f3c..507ed2aed0e8e 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4003,6 +4003,7 @@ context_switch(struct rq *rq, struct task_struct *prev,
 		 * finish_task_switch()'s mmdrop().
 		 */
 		switch_mm_irqs_off(prev->active_mm, next->mm, next);
+		lru_gen_use_mm(next->mm);
 
 		if (!prev->mm) {                        // from kernel
 			/* will mmdrop() in finish_task_switch(). */
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 53b7443c61976..eed533d29bd77 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6226,6 +6226,29 @@ static void mem_cgroup_move_task(void)
 }
 #endif
 
+#ifdef CONFIG_LRU_GEN
+static void mem_cgroup_attach(struct cgroup_taskset *tset)
+{
+	struct cgroup_subsys_state *css;
+	struct task_struct *task = NULL;
+
+	cgroup_taskset_for_each_leader(task, css, tset)
+		break;
+
+	if (!task)
+		return;
+
+	task_lock(task);
+	if (task->mm && task->mm->owner == task)
+		lru_gen_migrate_mm(task->mm);
+	task_unlock(task);
+}
+#else
+static void mem_cgroup_attach(struct cgroup_taskset *tset)
+{
+}
+#endif /* CONFIG_LRU_GEN */
+
 /*
  * Cgroup retains root cgroups across [un]mount cycles making it necessary
  * to verify whether we're attached to the default hierarchy on each mount
@@ -6578,6 +6601,7 @@ struct cgroup_subsys memory_cgrp_subsys = {
 	.css_free = mem_cgroup_css_free,
 	.css_reset = mem_cgroup_css_reset,
 	.can_attach = mem_cgroup_can_attach,
+	.attach = mem_cgroup_attach,
 	.cancel_attach = mem_cgroup_cancel_attach,
 	.post_attach = mem_cgroup_move_task,
 	.bind = mem_cgroup_bind,
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6151c1c5bc861..e8ff26894b872 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -51,6 +51,8 @@
 #include <linux/printk.h>
 #include <linux/dax.h>
 #include <linux/psi.h>
+#include <linux/pagewalk.h>
+#include <linux/shmem_fs.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -2682,6 +2684,374 @@ static bool __maybe_unused seq_is_valid(struct lruvec *lruvec)
 	       get_nr_gens(lruvec, LRU_GEN_ANON) <= MAX_NR_GENS;
 }
 
+/******************************************************************************
+ *                          mm_struct list
+ ******************************************************************************/
+
+static struct lru_gen_mm_list *get_mm_list(struct mem_cgroup *memcg)
+{
+	static struct lru_gen_mm_list mm_list = {
+		.fifo = LIST_HEAD_INIT(mm_list.fifo),
+		.lock = __SPIN_LOCK_UNLOCKED(mm_list.lock),
+	};
+
+#ifdef CONFIG_MEMCG
+	if (memcg)
+		return &memcg->mm_list;
+#endif
+	VM_BUG_ON(!mem_cgroup_disabled());
+
+	return &mm_list;
+}
+
+void lru_gen_add_mm(struct mm_struct *mm)
+{
+	int nid;
+	struct mem_cgroup *memcg = get_mem_cgroup_from_mm(mm);
+	struct lru_gen_mm_list *mm_list = get_mm_list(memcg);
+
+	VM_BUG_ON_MM(!list_empty(&mm->lru_gen.list), mm);
+#ifdef CONFIG_MEMCG
+	VM_BUG_ON_MM(mm->lru_gen.memcg, mm);
+	mm->lru_gen.memcg = memcg;
+#endif
+	spin_lock(&mm_list->lock);
+
+	for_each_node_state(nid, N_MEMORY) {
+		struct lruvec *lruvec = get_lruvec(memcg, nid);
+
+		if (!lruvec)
+			continue;
+
+		if (lruvec->mm_state.tail == &mm_list->fifo)
+			lruvec->mm_state.tail = &mm->lru_gen.list;
+	}
+
+	list_add_tail(&mm->lru_gen.list, &mm_list->fifo);
+
+	spin_unlock(&mm_list->lock);
+}
+
+void lru_gen_del_mm(struct mm_struct *mm)
+{
+	int nid;
+	struct lru_gen_mm_list *mm_list;
+	struct mem_cgroup *memcg = NULL;
+
+	if (list_empty(&mm->lru_gen.list))
+		return;
+
+#ifdef CONFIG_MEMCG
+	memcg = mm->lru_gen.memcg;
+#endif
+	mm_list = get_mm_list(memcg);
+
+	spin_lock(&mm_list->lock);
+
+	for_each_node(nid) {
+		struct lruvec *lruvec = get_lruvec(memcg, nid);
+
+		if (!lruvec)
+			continue;
+
+		if (lruvec->mm_state.tail == &mm->lru_gen.list)
+			lruvec->mm_state.tail = lruvec->mm_state.tail->next;
+
+		if (lruvec->mm_state.head != &mm->lru_gen.list)
+			continue;
+
+		lruvec->mm_state.head = lruvec->mm_state.head->next;
+		if (lruvec->mm_state.head == &mm_list->fifo)
+			WRITE_ONCE(lruvec->mm_state.seq, lruvec->mm_state.seq + 1);
+	}
+
+	list_del_init(&mm->lru_gen.list);
+
+	spin_unlock(&mm_list->lock);
+
+#ifdef CONFIG_MEMCG
+	mem_cgroup_put(mm->lru_gen.memcg);
+	mm->lru_gen.memcg = NULL;
+#endif
+}
+
+#ifdef CONFIG_MEMCG
+void lru_gen_migrate_mm(struct mm_struct *mm)
+{
+	struct mem_cgroup *memcg;
+
+	lockdep_assert_held(&mm->owner->alloc_lock);
+
+	/* for mm_update_next_owner() */
+	if (mem_cgroup_disabled())
+		return;
+
+	rcu_read_lock();
+	memcg = mem_cgroup_from_task(mm->owner);
+	rcu_read_unlock();
+	if (memcg == mm->lru_gen.memcg)
+		return;
+
+	VM_BUG_ON_MM(!mm->lru_gen.memcg, mm);
+	VM_BUG_ON_MM(list_empty(&mm->lru_gen.list), mm);
+
+	lru_gen_del_mm(mm);
+	lru_gen_add_mm(mm);
+}
+#endif
+
+/*
+ * Bloom filters with m=1<<15, k=2 and the false positive rates of ~1/5 when
+ * n=10,000 and ~1/2 when n=20,000, where, conventionally, m is the number of
+ * bits in a bitmap, k is the number of hash functions and n is the number of
+ * inserted items.
+ *
+ * Page table walkers use one of the two filters to reduce their search space.
+ * To get rid of non-leaf entries that no longer have enough leaf entries, the
+ * aging uses the double-buffering technique to flip to the other filter each
+ * time it produces a new generation. For non-leaf entries that have enough
+ * leaf entries, the aging carries them over to the next generation in
+ * walk_pmd_range(); the eviction also report them when walking the rmap
+ * in lru_gen_look_around().
+ *
+ * For future optimizations:
+ * 1. It's not necessary to keep both filters all the time. The spare one can be
+ *    freed after the RCU grace period and reallocated if needed again.
+ * 2. And when reallocating, it's worth scaling its size according to the number
+ *    of inserted entries in the other filter, to reduce the memory overhead on
+ *    small systems and false positives on large systems.
+ * 3. Jenkins' hash function is an alternative to Knuth's.
+ */
+#define BLOOM_FILTER_SHIFT	15
+
+static inline int filter_gen_from_seq(unsigned long seq)
+{
+	return seq % NR_BLOOM_FILTERS;
+}
+
+static void get_item_key(void *item, int *key)
+{
+	u32 hash = hash_ptr(item, BLOOM_FILTER_SHIFT * 2);
+
+	BUILD_BUG_ON(BLOOM_FILTER_SHIFT * 2 > BITS_PER_TYPE(u32));
+
+	key[0] = hash & (BIT(BLOOM_FILTER_SHIFT) - 1);
+	key[1] = hash >> BLOOM_FILTER_SHIFT;
+}
+
+static void reset_bloom_filter(struct lruvec *lruvec, unsigned long seq)
+{
+	unsigned long *filter;
+	int gen = filter_gen_from_seq(seq);
+
+	lockdep_assert_held(&get_mm_list(lruvec_memcg(lruvec))->lock);
+
+	filter = lruvec->mm_state.filters[gen];
+	if (filter) {
+		bitmap_clear(filter, 0, BIT(BLOOM_FILTER_SHIFT));
+		return;
+	}
+
+	filter = bitmap_zalloc(BIT(BLOOM_FILTER_SHIFT), GFP_ATOMIC);
+	WRITE_ONCE(lruvec->mm_state.filters[gen], filter);
+}
+
+static void update_bloom_filter(struct lruvec *lruvec, unsigned long seq, void *item)
+{
+	int key[2];
+	unsigned long *filter;
+	int gen = filter_gen_from_seq(seq);
+
+	filter = READ_ONCE(lruvec->mm_state.filters[gen]);
+	if (!filter)
+		return;
+
+	get_item_key(item, key);
+
+	if (!test_bit(key[0], filter))
+		set_bit(key[0], filter);
+	if (!test_bit(key[1], filter))
+		set_bit(key[1], filter);
+}
+
+static bool test_bloom_filter(struct lruvec *lruvec, unsigned long seq, void *item)
+{
+	int key[2];
+	unsigned long *filter;
+	int gen = filter_gen_from_seq(seq);
+
+	filter = READ_ONCE(lruvec->mm_state.filters[gen]);
+	if (!filter)
+		return true;
+
+	get_item_key(item, key);
+
+	return test_bit(key[0], filter) && test_bit(key[1], filter);
+}
+
+static void reset_mm_stats(struct lruvec *lruvec, struct lru_gen_mm_walk *walk, bool last)
+{
+	int i;
+	int hist;
+
+	lockdep_assert_held(&get_mm_list(lruvec_memcg(lruvec))->lock);
+
+	if (walk) {
+		hist = lru_hist_from_seq(walk->max_seq);
+
+		for (i = 0; i < NR_MM_STATS; i++) {
+			WRITE_ONCE(lruvec->mm_state.stats[hist][i],
+				   lruvec->mm_state.stats[hist][i] + walk->mm_stats[i]);
+			walk->mm_stats[i] = 0;
+		}
+	}
+
+	if (NR_HIST_GENS > 1 && last) {
+		hist = lru_hist_from_seq(lruvec->mm_state.seq + 1);
+
+		for (i = 0; i < NR_MM_STATS; i++)
+			WRITE_ONCE(lruvec->mm_state.stats[hist][i], 0);
+	}
+}
+
+static bool should_skip_mm(struct mm_struct *mm, struct lru_gen_mm_walk *walk)
+{
+	int type;
+	unsigned long size = 0;
+	struct pglist_data *pgdat = lruvec_pgdat(walk->lruvec);
+
+	if (!walk->full_scan && cpumask_empty(mm_cpumask(mm)) &&
+	    !node_isset(pgdat->node_id, mm->lru_gen.nodes))
+		return true;
+
+	node_clear(pgdat->node_id, mm->lru_gen.nodes);
+
+	for (type = !walk->can_swap; type < ANON_AND_FILE; type++) {
+		size += type ? get_mm_counter(mm, MM_FILEPAGES) :
+			       get_mm_counter(mm, MM_ANONPAGES) +
+			       get_mm_counter(mm, MM_SHMEMPAGES);
+	}
+
+	if (size < MIN_LRU_BATCH)
+		return true;
+
+	if (mm_is_oom_victim(mm))
+		return true;
+
+	return !mmget_not_zero(mm);
+}
+
+static bool iterate_mm_list(struct lruvec *lruvec, struct lru_gen_mm_walk *walk,
+			    struct mm_struct **iter)
+{
+	bool first = false;
+	bool last = true;
+	struct mm_struct *mm = NULL;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	struct lru_gen_mm_list *mm_list = get_mm_list(memcg);
+	struct lru_gen_mm_state *mm_state = &lruvec->mm_state;
+
+	/*
+	 * There are four interesting cases for this page table walker:
+	 * 1. It tries to start a new iteration of mm_list with a stale max_seq;
+	 *    there is nothing to be done.
+	 * 2. It's the first of the current generation, and it needs to reset
+	 *    the Bloom filter for the next generation.
+	 * 3. It reaches the end of mm_list, and it needs to increment
+	 *    mm_state->seq; the iteration is done.
+	 * 4. It's the last of the current generation, and it needs to reset the
+	 *    mm stats counters for the next generation.
+	 */
+	if (*iter)
+		mmput_async(*iter);
+	else if (walk->max_seq <= READ_ONCE(mm_state->seq))
+		return false;
+
+	spin_lock(&mm_list->lock);
+
+	VM_BUG_ON(mm_state->seq + 1 < walk->max_seq);
+	VM_BUG_ON(*iter && mm_state->seq > walk->max_seq);
+	VM_BUG_ON(*iter && !mm_state->nr_walkers);
+
+	if (walk->max_seq <= mm_state->seq) {
+		if (!*iter)
+			last = false;
+		goto done;
+	}
+
+	if (!mm_state->nr_walkers) {
+		VM_BUG_ON(mm_state->head && mm_state->head != &mm_list->fifo);
+
+		mm_state->head = mm_list->fifo.next;
+		first = true;
+	}
+
+	while (!mm && mm_state->head != &mm_list->fifo) {
+		mm = list_entry(mm_state->head, struct mm_struct, lru_gen.list);
+
+		mm_state->head = mm_state->head->next;
+
+		/* full scan for those added after the last iteration */
+		if (!mm_state->tail || mm_state->tail == &mm->lru_gen.list) {
+			mm_state->tail = mm_state->head;
+			walk->full_scan = true;
+		}
+
+		if (should_skip_mm(mm, walk))
+			mm = NULL;
+	}
+
+	if (mm_state->head == &mm_list->fifo)
+		WRITE_ONCE(mm_state->seq, mm_state->seq + 1);
+done:
+	if (*iter && !mm)
+		mm_state->nr_walkers--;
+	if (!*iter && mm)
+		mm_state->nr_walkers++;
+
+	if (mm_state->nr_walkers)
+		last = false;
+
+	if (mm && first)
+		reset_bloom_filter(lruvec, walk->max_seq + 1);
+
+	if (*iter || last)
+		reset_mm_stats(lruvec, walk, last);
+
+	spin_unlock(&mm_list->lock);
+
+	*iter = mm;
+
+	return last;
+}
+
+static bool iterate_mm_list_nowalk(struct lruvec *lruvec, unsigned long max_seq)
+{
+	bool success = false;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	struct lru_gen_mm_list *mm_list = get_mm_list(memcg);
+	struct lru_gen_mm_state *mm_state = &lruvec->mm_state;
+
+	if (max_seq <= READ_ONCE(mm_state->seq))
+		return false;
+
+	spin_lock(&mm_list->lock);
+
+	VM_BUG_ON(mm_state->seq + 1 < max_seq);
+
+	if (max_seq > mm_state->seq && !mm_state->nr_walkers) {
+		VM_BUG_ON(mm_state->head && mm_state->head != &mm_list->fifo);
+
+		WRITE_ONCE(mm_state->seq, mm_state->seq + 1);
+		reset_mm_stats(lruvec, NULL, true);
+		success = true;
+	}
+
+	spin_unlock(&mm_list->lock);
+
+	return success;
+}
+
 /******************************************************************************
  *                          refault feedback loop
  ******************************************************************************/
@@ -2835,6 +3205,476 @@ static int page_inc_gen(struct lruvec *lruvec, struct page *page, bool reclaimin
 	return new_gen;
 }
 
+static void update_batch_size(struct lru_gen_mm_walk *walk, struct page *page,
+			      int old_gen, int new_gen)
+{
+	int type = page_is_file_lru(page);
+	int zone = page_zonenum(page);
+	int delta = thp_nr_pages(page);
+
+	VM_BUG_ON(old_gen >= MAX_NR_GENS);
+	VM_BUG_ON(new_gen >= MAX_NR_GENS);
+
+	walk->batched++;
+
+	walk->nr_pages[old_gen][type][zone] -= delta;
+	walk->nr_pages[new_gen][type][zone] += delta;
+}
+
+static void reset_batch_size(struct lruvec *lruvec, struct lru_gen_mm_walk *walk)
+{
+	int gen, type, zone;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	walk->batched = 0;
+
+	for_each_gen_type_zone(gen, type, zone) {
+		enum lru_list lru = type * LRU_INACTIVE_FILE;
+		int delta = walk->nr_pages[gen][type][zone];
+
+		if (!delta)
+			continue;
+
+		walk->nr_pages[gen][type][zone] = 0;
+		WRITE_ONCE(lrugen->nr_pages[gen][type][zone],
+			   lrugen->nr_pages[gen][type][zone] + delta);
+
+		if (lru_gen_is_active(lruvec, gen))
+			lru += LRU_ACTIVE;
+		__update_lru_size(lruvec, lru, zone, delta);
+	}
+}
+
+static int should_skip_vma(unsigned long start, unsigned long end, struct mm_walk *walk)
+{
+	struct address_space *mapping;
+	struct vm_area_struct *vma = walk->vma;
+	struct lru_gen_mm_walk *priv = walk->private;
+
+	if (!vma_is_accessible(vma) || is_vm_hugetlb_page(vma) ||
+	    (vma->vm_flags & (VM_LOCKED | VM_SPECIAL | VM_SEQ_READ | VM_RAND_READ)) ||
+	    vma == get_gate_vma(vma->vm_mm))
+		return true;
+
+	if (vma_is_anonymous(vma))
+		return !priv->can_swap;
+
+	if (WARN_ON_ONCE(!vma->vm_file || !vma->vm_file->f_mapping))
+		return true;
+
+	mapping = vma->vm_file->f_mapping;
+	if (mapping_unevictable(mapping))
+		return true;
+
+	/* check readpage to exclude special mappings like dax, etc. */
+	return shmem_mapping(mapping) ? !priv->can_swap : !mapping->a_ops->readpage;
+}
+
+/*
+ * Some userspace memory allocators map many single-page VMAs. Instead of
+ * returning back to the PGD table for each of such VMAs, finish an entire PMD
+ * table to reduce zigzags and improve cache performance.
+ */
+static bool get_next_vma(struct mm_walk *walk, unsigned long mask, unsigned long size,
+			 unsigned long *start, unsigned long *end)
+{
+	unsigned long next = round_up(*end, size);
+
+	VM_BUG_ON(mask & size);
+	VM_BUG_ON(*start >= *end);
+	VM_BUG_ON((next & mask) != (*start & mask));
+
+	while (walk->vma) {
+		if (next >= walk->vma->vm_end) {
+			walk->vma = walk->vma->vm_next;
+			continue;
+		}
+
+		if ((next & mask) != (walk->vma->vm_start & mask))
+			return false;
+
+		if (should_skip_vma(walk->vma->vm_start, walk->vma->vm_end, walk)) {
+			walk->vma = walk->vma->vm_next;
+			continue;
+		}
+
+		*start = max(next, walk->vma->vm_start);
+		next = (next | ~mask) + 1;
+		/* rounded-up boundaries can wrap to 0 */
+		*end = next && next < walk->vma->vm_end ? next : walk->vma->vm_end;
+
+		return true;
+	}
+
+	return false;
+}
+
+static bool suitable_to_scan(int total, int young)
+{
+	int n = clamp_t(int, cache_line_size() / sizeof(pte_t), 2, 8);
+
+	/* suitable if the average number of young PTEs per cacheline is >=1 */
+	return young * n >= total;
+}
+
+static bool walk_pte_range(pmd_t *pmd, unsigned long start, unsigned long end,
+			   struct mm_walk *walk)
+{
+	int i;
+	pte_t *pte;
+	spinlock_t *ptl;
+	unsigned long addr;
+	int total = 0;
+	int young = 0;
+	struct lru_gen_mm_walk *priv = walk->private;
+	struct mem_cgroup *memcg = lruvec_memcg(priv->lruvec);
+	struct pglist_data *pgdat = lruvec_pgdat(priv->lruvec);
+	int old_gen, new_gen = lru_gen_from_seq(priv->max_seq);
+
+	VM_BUG_ON(pmd_leaf(*pmd));
+
+	ptl = pte_lockptr(walk->mm, pmd);
+	if (!spin_trylock(ptl))
+		return false;
+
+	arch_enter_lazy_mmu_mode();
+
+	pte = pte_offset_map(pmd, start & PMD_MASK);
+restart:
+	for (i = pte_index(start), addr = start; addr != end; i++, addr += PAGE_SIZE) {
+		struct page *page;
+		unsigned long pfn = pte_pfn(pte[i]);
+
+		VM_BUG_ON(addr < walk->vma->vm_start || addr >= walk->vma->vm_end);
+
+		total++;
+		priv->mm_stats[MM_PTE_TOTAL]++;
+
+		if (!pte_present(pte[i]) || is_zero_pfn(pfn))
+			continue;
+
+		if (WARN_ON_ONCE(pte_devmap(pte[i]) || pte_special(pte[i])))
+			continue;
+
+		if (!pte_young(pte[i])) {
+			priv->mm_stats[MM_PTE_OLD]++;
+			continue;
+		}
+
+		VM_BUG_ON(!pfn_valid(pfn));
+		if (pfn < pgdat->node_start_pfn || pfn >= pgdat_end_pfn(pgdat))
+			continue;
+
+		page = compound_head(pfn_to_page(pfn));
+		if (page_to_nid(page) != pgdat->node_id)
+			continue;
+
+		if (page_memcg_rcu(page) != memcg)
+			continue;
+
+		if (!ptep_test_and_clear_young(walk->vma, addr, pte + i))
+			continue;
+
+		young++;
+		priv->mm_stats[MM_PTE_YOUNG]++;
+
+		if (pte_dirty(pte[i]) && !PageDirty(page) &&
+		    !(PageAnon(page) && PageSwapBacked(page) && !PageSwapCache(page)))
+			set_page_dirty(page);
+
+		old_gen = page_update_gen(page, new_gen);
+		if (old_gen >= 0 && old_gen != new_gen)
+			update_batch_size(priv, page, old_gen, new_gen);
+	}
+
+	if (i < PTRS_PER_PTE && get_next_vma(walk, PMD_MASK, PAGE_SIZE, &start, &end))
+		goto restart;
+
+	pte_unmap(pte);
+
+	arch_leave_lazy_mmu_mode();
+	spin_unlock(ptl);
+
+	return suitable_to_scan(total, young);
+}
+
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG)
+static void walk_pmd_range_locked(pud_t *pud, unsigned long next, struct vm_area_struct *vma,
+				  struct mm_walk *walk, unsigned long *start)
+{
+	int i;
+	pmd_t *pmd;
+	spinlock_t *ptl;
+	struct lru_gen_mm_walk *priv = walk->private;
+	struct mem_cgroup *memcg = lruvec_memcg(priv->lruvec);
+	struct pglist_data *pgdat = lruvec_pgdat(priv->lruvec);
+	int old_gen, new_gen = lru_gen_from_seq(priv->max_seq);
+
+	VM_BUG_ON(pud_leaf(*pud));
+
+	/* try to batch at most 1+MIN_LRU_BATCH+1 entries */
+	if (*start == -1) {
+		*start = next;
+		return;
+	}
+
+	i = next == -1 ? 0 : pmd_index(next) - pmd_index(*start);
+	if (i && i <= MIN_LRU_BATCH) {
+		__set_bit(i - 1, priv->bitmap);
+		return;
+	}
+
+	pmd = pmd_offset(pud, *start);
+
+	ptl = pmd_lockptr(walk->mm, pmd);
+	if (!spin_trylock(ptl))
+		goto done;
+
+	arch_enter_lazy_mmu_mode();
+
+	do {
+		struct page *page;
+		unsigned long pfn = pmd_pfn(pmd[i]);
+		unsigned long addr = i ? (*start & PMD_MASK) + i * PMD_SIZE : *start;
+
+		VM_BUG_ON(addr < vma->vm_start || addr >= vma->vm_end);
+
+		if (!pmd_present(pmd[i]) || is_huge_zero_pmd(pmd[i]))
+			goto next;
+
+		if (WARN_ON_ONCE(pmd_devmap(pmd[i])))
+			goto next;
+
+		if (!pmd_trans_huge(pmd[i])) {
+			if (IS_ENABLED(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG))
+				pmdp_test_and_clear_young(vma, addr, pmd + i);
+			goto next;
+		}
+
+		VM_BUG_ON(!pfn_valid(pfn));
+		if (pfn < pgdat->node_start_pfn || pfn >= pgdat_end_pfn(pgdat))
+			goto next;
+
+		page = pfn_to_page(pfn);
+		VM_BUG_ON_PAGE(PageTail(page), page);
+		if (page_to_nid(page) != pgdat->node_id)
+			goto next;
+
+		if (page_memcg_rcu(page) != memcg)
+			goto next;
+
+		if (!pmdp_test_and_clear_young(vma, addr, pmd + i))
+			goto next;
+
+		priv->mm_stats[MM_PTE_YOUNG]++;
+
+		if (pmd_dirty(pmd[i]) && !PageDirty(page) &&
+		    !(PageAnon(page) && PageSwapBacked(page) && !PageSwapCache(page)))
+			set_page_dirty(page);
+
+		old_gen = page_update_gen(page, new_gen);
+		if (old_gen >= 0 && old_gen != new_gen)
+			update_batch_size(priv, page, old_gen, new_gen);
+next:
+		i = i > MIN_LRU_BATCH ? 0 :
+		    find_next_bit(priv->bitmap, MIN_LRU_BATCH, i) + 1;
+	} while (i <= MIN_LRU_BATCH);
+
+	arch_leave_lazy_mmu_mode();
+	spin_unlock(ptl);
+done:
+	*start = -1;
+	bitmap_zero(priv->bitmap, MIN_LRU_BATCH);
+}
+#else
+static void walk_pmd_range_locked(pud_t *pud, unsigned long next, struct vm_area_struct *vma,
+				  struct mm_walk *walk, unsigned long *start)
+{
+}
+#endif
+
+static void walk_pmd_range(pud_t *pud, unsigned long start, unsigned long end,
+			   struct mm_walk *walk)
+{
+	int i;
+	pmd_t *pmd;
+	unsigned long next;
+	unsigned long addr;
+	struct vm_area_struct *vma;
+	unsigned long pos = -1;
+	struct lru_gen_mm_walk *priv = walk->private;
+
+	VM_BUG_ON(pud_leaf(*pud));
+
+	/*
+	 * Finish an entire PMD in two passes: the first only reaches to PTE
+	 * tables to avoid taking the PMD lock; the second, if necessary, takes
+	 * the PMD lock to clear the accessed bit in PMD entries.
+	 */
+	pmd = pmd_offset(pud, start & PUD_MASK);
+restart:
+	/* walk_pte_range() may call get_next_vma() */
+	vma = walk->vma;
+	for (i = pmd_index(start), addr = start; addr != end; i++, addr = next) {
+		pmd_t val = pmd_read_atomic(pmd + i);
+
+		/* for pmd_read_atomic() */
+		barrier();
+
+		next = pmd_addr_end(addr, end);
+
+		if (!pmd_present(val)) {
+			priv->mm_stats[MM_PTE_TOTAL]++;
+			continue;
+		}
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+		if (pmd_trans_huge(val)) {
+			unsigned long pfn = pmd_pfn(val);
+			struct pglist_data *pgdat = lruvec_pgdat(priv->lruvec);
+
+			priv->mm_stats[MM_PTE_TOTAL]++;
+
+			if (is_huge_zero_pmd(val))
+				continue;
+
+			if (!pmd_young(val)) {
+				priv->mm_stats[MM_PTE_OLD]++;
+				continue;
+			}
+
+			if (pfn < pgdat->node_start_pfn || pfn >= pgdat_end_pfn(pgdat))
+				continue;
+
+			walk_pmd_range_locked(pud, addr, vma, walk, &pos);
+			continue;
+		}
+#endif
+		priv->mm_stats[MM_PMD_TOTAL]++;
+
+#ifdef CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
+		if (!pmd_young(val))
+			continue;
+
+		walk_pmd_range_locked(pud, addr, vma, walk, &pos);
+#endif
+		if (!priv->full_scan && !test_bloom_filter(priv->lruvec, priv->max_seq, pmd + i))
+			continue;
+
+		priv->mm_stats[MM_PMD_FOUND]++;
+
+		if (!walk_pte_range(&val, addr, next, walk))
+			continue;
+
+		priv->mm_stats[MM_PMD_ADDED]++;
+
+		/* carry over to the next generation */
+		update_bloom_filter(priv->lruvec, priv->max_seq + 1, pmd + i);
+	}
+
+	walk_pmd_range_locked(pud, -1, vma, walk, &pos);
+
+	if (i < PTRS_PER_PMD && get_next_vma(walk, PUD_MASK, PMD_SIZE, &start, &end))
+		goto restart;
+}
+
+static int walk_pud_range(p4d_t *p4d, unsigned long start, unsigned long end,
+			  struct mm_walk *walk)
+{
+	int i;
+	pud_t *pud;
+	unsigned long addr;
+	unsigned long next;
+	struct lru_gen_mm_walk *priv = walk->private;
+
+	VM_BUG_ON(p4d_leaf(*p4d));
+
+	pud = pud_offset(p4d, start & P4D_MASK);
+restart:
+	for (i = pud_index(start), addr = start; addr != end; i++, addr = next) {
+		pud_t val = READ_ONCE(pud[i]);
+
+		next = pud_addr_end(addr, end);
+
+		if (!pud_present(val) || WARN_ON_ONCE(pud_leaf(val)))
+			continue;
+
+		walk_pmd_range(&val, addr, next, walk);
+
+		if (priv->batched >= MAX_LRU_BATCH) {
+			end = (addr | ~PUD_MASK) + 1;
+			goto done;
+		}
+	}
+
+	if (i < PTRS_PER_PUD && get_next_vma(walk, P4D_MASK, PUD_SIZE, &start, &end))
+		goto restart;
+
+	end = round_up(end, P4D_SIZE);
+done:
+	/* rounded-up boundaries can wrap to 0 */
+	priv->next_addr = end && walk->vma ? max(end, walk->vma->vm_start) : 0;
+
+	return -EAGAIN;
+}
+
+static void walk_mm(struct lruvec *lruvec, struct mm_struct *mm, struct lru_gen_mm_walk *walk)
+{
+	static const struct mm_walk_ops mm_walk_ops = {
+		.test_walk = should_skip_vma,
+		.p4d_entry = walk_pud_range,
+	};
+
+	int err;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
+
+	walk->next_addr = FIRST_USER_ADDRESS;
+
+	do {
+		err = -EBUSY;
+
+		/* page_update_gen() requires stable page_memcg() */
+		if (!mem_cgroup_trylock_pages(memcg))
+			break;
+
+		/* the caller might be holding the lock for write */
+		if (mmap_read_trylock(mm)) {
+			unsigned long start = walk->next_addr;
+			unsigned long end = mm->highest_vm_end;
+
+			err = walk_page_range(mm, start, end, &mm_walk_ops, walk);
+
+			mmap_read_unlock(mm);
+
+			if (walk->batched) {
+				spin_lock_irq(&pgdat->lru_lock);
+				reset_batch_size(lruvec, walk);
+				spin_unlock_irq(&pgdat->lru_lock);
+			}
+		}
+
+		mem_cgroup_unlock_pages();
+
+		cond_resched();
+	} while (err == -EAGAIN && walk->next_addr && !mm_is_oom_victim(mm));
+}
+
+static struct lru_gen_mm_walk *alloc_mm_walk(void)
+{
+	if (current->reclaim_state && current->reclaim_state->mm_walk)
+		return current->reclaim_state->mm_walk;
+
+	return kzalloc(sizeof(struct lru_gen_mm_walk),
+		       __GFP_HIGH | __GFP_NOMEMALLOC | __GFP_NOWARN);
+}
+
+static void free_mm_walk(struct lru_gen_mm_walk *walk)
+{
+	if (!current->reclaim_state || !current->reclaim_state->mm_walk)
+		kfree(walk);
+}
+
 static void inc_min_seq(struct lruvec *lruvec)
 {
 	int type;
@@ -2893,7 +3733,7 @@ next:
 	return success;
 }
 
-static void inc_max_seq(struct lruvec *lruvec, unsigned long max_seq)
+static void inc_max_seq(struct lruvec *lruvec)
 {
 	int prev, next;
 	int type, zone;
@@ -2904,9 +3744,6 @@ static void inc_max_seq(struct lruvec *lruvec, unsigned long max_seq)
 
 	VM_BUG_ON(!seq_is_valid(lruvec));
 
-	if (max_seq != lrugen->max_seq)
-		goto unlock;
-
 	inc_min_seq(lruvec);
 
 	/*
@@ -2940,10 +3777,72 @@ static void inc_max_seq(struct lruvec *lruvec, unsigned long max_seq)
 
 	/* make sure preceding modifications appear */
 	smp_store_release(&lrugen->max_seq, lrugen->max_seq + 1);
-unlock:
+
 	spin_unlock_irq(&pgdat->lru_lock);
 }
 
+static bool try_to_inc_max_seq(struct lruvec *lruvec, unsigned long max_seq,
+			       struct scan_control *sc, bool can_swap, bool full_scan)
+{
+	bool success;
+	struct lru_gen_mm_walk *walk;
+	struct mm_struct *mm = NULL;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	VM_BUG_ON(max_seq > READ_ONCE(lrugen->max_seq));
+
+	/*
+	 * If the hardware doesn't automatically set the accessed bit, fallback
+	 * to lru_gen_look_around(), which only clears the accessed bit in a
+	 * handful of PTEs. Spreading the work out over a period of time usually
+	 * is less efficient, but it avoids bursty page faults.
+	 */
+	if (!full_scan && !arch_has_hw_pte_young()) {
+		success = iterate_mm_list_nowalk(lruvec, max_seq);
+		goto done;
+	}
+
+	walk = alloc_mm_walk();
+	if (!walk) {
+		success = iterate_mm_list_nowalk(lruvec, max_seq);
+		goto done;
+	}
+
+	walk->lruvec = lruvec;
+	walk->max_seq = max_seq;
+	walk->can_swap = can_swap;
+	walk->full_scan = full_scan;
+
+	do {
+		success = iterate_mm_list(lruvec, walk, &mm);
+		if (mm)
+			walk_mm(lruvec, mm, walk);
+
+		cond_resched();
+	} while (mm);
+
+	free_mm_walk(walk);
+done:
+	if (!success) {
+		if (!current_is_kswapd() && !sc->priority)
+			wait_event_killable(lruvec->mm_state.wait,
+					    max_seq < READ_ONCE(lrugen->max_seq));
+
+		return max_seq < READ_ONCE(lrugen->max_seq);
+	}
+
+	VM_BUG_ON(max_seq != READ_ONCE(lrugen->max_seq));
+
+	inc_max_seq(lruvec);
+	/* either this sees any waiters or they will see updated max_seq */
+	if (wq_has_sleeper(&lruvec->mm_state.wait))
+		wake_up_all(&lruvec->mm_state.wait);
+
+	wakeup_flusher_threads(WB_REASON_VMSCAN);
+
+	return true;
+}
+
 static long get_nr_evictable(struct lruvec *lruvec, unsigned long max_seq,
 			     unsigned long *min_seq, bool can_swap, bool *need_aging)
 {
@@ -3025,7 +3924,7 @@ static void age_lruvec(struct lruvec *lruvec, struct scan_control *sc)
 		nr_to_scan++;
 
 	if (nr_to_scan && need_aging && (!mem_cgroup_below_low(memcg) || sc->memcg_low_reclaim))
-		inc_max_seq(lruvec, max_seq);
+		try_to_inc_max_seq(lruvec, max_seq, sc, swappiness, false);
 }
 
 static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
@@ -3034,6 +3933,8 @@ static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
 
 	VM_BUG_ON(!current_is_kswapd());
 
+	current->reclaim_state->mm_walk = &pgdat->mm_walk;
+
 	memcg = mem_cgroup_iter(NULL, NULL, NULL);
 	do {
 		struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat);
@@ -3042,11 +3943,16 @@ static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
 
 		cond_resched();
 	} while ((memcg = mem_cgroup_iter(NULL, memcg, NULL)));
+
+	current->reclaim_state->mm_walk = NULL;
 }
 
 /*
  * This function exploits spatial locality when shrink_page_list() walks the
  * rmap. It scans the adjacent PTEs of a young PTE and promotes hot pages.
+ * If the scan was done cacheline efficiently, it adds the PMD entry pointing
+ * to the PTE table to the Bloom filter. This process is a feedback loop from
+ * the eviction to the aging.
  */
 void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 {
@@ -3056,6 +3962,8 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 	unsigned long end;
 	unsigned long addr;
 	struct page *page;
+	struct lru_gen_mm_walk *walk;
+	int young = 0;
 	unsigned long bitmap[BITS_TO_LONGS(MIN_LRU_BATCH)] = {};
 	struct mem_cgroup *memcg = page_memcg(pvmw->page);
 	struct pglist_data *pgdat = page_pgdat(pvmw->page);
@@ -3116,6 +4024,8 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 		if (!ptep_test_and_clear_young(pvmw->vma, addr, pte + i))
 			continue;
 
+		young++;
+
 		if (pte_dirty(pte[i]) && !PageDirty(page) &&
 		    !(PageAnon(page) && PageSwapBacked(page) && !PageSwapCache(page)))
 			set_page_dirty(page);
@@ -3130,7 +4040,13 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 	arch_leave_lazy_mmu_mode();
 	rcu_read_unlock();
 
-	if (bitmap_weight(bitmap, MIN_LRU_BATCH) < PAGEVEC_SIZE) {
+	/* feedback from rmap walkers to page table walkers */
+	if (suitable_to_scan(i, young))
+		update_bloom_filter(lruvec, max_seq, pvmw->pmd);
+
+	walk = current->reclaim_state ? current->reclaim_state->mm_walk : NULL;
+
+	if (!walk && bitmap_weight(bitmap, MIN_LRU_BATCH) < PAGEVEC_SIZE) {
 		for_each_set_bit(i, bitmap, MIN_LRU_BATCH)
 			activate_page(pte_page(pte[i]));
 		return;
@@ -3140,8 +4056,10 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 	if (!mem_cgroup_trylock_pages(memcg))
 		return;
 
-	spin_lock_irq(&pgdat->lru_lock);
-	new_gen = lru_gen_from_seq(lruvec->lrugen.max_seq);
+	if (!walk) {
+		spin_lock_irq(&pgdat->lru_lock);
+		new_gen = lru_gen_from_seq(lruvec->lrugen.max_seq);
+	}
 
 	for_each_set_bit(i, bitmap, MIN_LRU_BATCH) {
 		page = compound_head(pte_page(pte[i]));
@@ -3152,10 +4070,14 @@ void lru_gen_look_around(struct page_vma_mapped_walk *pvmw)
 		if (old_gen < 0 || old_gen == new_gen)
 			continue;
 
-		lru_gen_update_size(lruvec, page, old_gen, new_gen);
+		if (walk)
+			update_batch_size(walk, page, old_gen, new_gen);
+		else
+			lru_gen_update_size(lruvec, page, old_gen, new_gen);
 	}
 
-	spin_unlock_irq(&pgdat->lru_lock);
+	if (!walk)
+		spin_unlock_irq(&pgdat->lru_lock);
 
 	mem_cgroup_unlock_pages();
 }
@@ -3421,6 +4343,7 @@ static int evict_pages(struct lruvec *lruvec, struct scan_control *sc, int swapp
 	struct page *page;
 	enum vm_event_item item;
 	struct reclaim_stat stat;
+	struct lru_gen_mm_walk *walk;
 	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
 	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
 
@@ -3459,6 +4382,10 @@ static int evict_pages(struct lruvec *lruvec, struct scan_control *sc, int swapp
 
 	move_pages_to_lru(lruvec, &list);
 
+	walk = current->reclaim_state ? current->reclaim_state->mm_walk : NULL;
+	if (walk && walk->batched)
+		reset_batch_size(lruvec, walk);
+
 	item = current_is_kswapd() ? PGSTEAL_KSWAPD : PGSTEAL_DIRECT;
 	if (!cgroup_reclaim(sc))
 		__count_vm_events(item, reclaimed);
@@ -3513,20 +4440,25 @@ static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, bool
 		return 0;
 	}
 
-	inc_max_seq(lruvec, max_seq);
+	if (try_to_inc_max_seq(lruvec, max_seq, sc, can_swap, false))
+		return nr_to_scan;
 
-	return nr_to_scan;
+	return min_seq[LRU_GEN_FILE] + MIN_NR_GENS <= max_seq ? nr_to_scan : 0;
 }
 
 static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc)
 {
 	struct blk_plug plug;
 	long scanned = 0;
+	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
 
 	lru_add_drain();
 
 	blk_start_plug(&plug);
 
+	if (current_is_kswapd())
+		current->reclaim_state->mm_walk = &pgdat->mm_walk;
+
 	while (true) {
 		int delta;
 		int swappiness;
@@ -3554,6 +4486,9 @@ static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc
 		cond_resched();
 	}
 
+	if (current_is_kswapd())
+		current->reclaim_state->mm_walk = NULL;
+
 	blk_finish_plug(&plug);
 }
 
@@ -3570,15 +4505,21 @@ void lru_gen_init_lruvec(struct lruvec *lruvec)
 
 	for_each_gen_type_zone(gen, type, zone)
 		INIT_LIST_HEAD(&lrugen->lists[gen][type][zone]);
+
+	lruvec->mm_state.seq = MIN_NR_GENS;
+	init_waitqueue_head(&lruvec->mm_state.wait);
 }
 
 #ifdef CONFIG_MEMCG
 void lru_gen_init_memcg(struct mem_cgroup *memcg)
 {
+	INIT_LIST_HEAD(&memcg->mm_list.fifo);
+	spin_lock_init(&memcg->mm_list.lock);
 }
 
 void lru_gen_exit_memcg(struct mem_cgroup *memcg)
 {
+	int i;
 	int nid;
 
 	for_each_node(nid) {
@@ -3586,6 +4527,11 @@ void lru_gen_exit_memcg(struct mem_cgroup *memcg)
 
 		VM_BUG_ON(memchr_inv(lruvec->lrugen.nr_pages, 0,
 				     sizeof(lruvec->lrugen.nr_pages)));
+
+		for (i = 0; i < NR_BLOOM_FILTERS; i++) {
+			bitmap_free(lruvec->mm_state.filters[i]);
+			lruvec->mm_state.filters[i] = NULL;
+		}
 	}
 }
 #endif
@@ -3594,6 +4540,7 @@ static int __init init_lru_gen(void)
 {
 	BUILD_BUG_ON(MIN_NR_GENS + 1 >= MAX_NR_GENS);
 	BUILD_BUG_ON(BIT(LRU_GEN_WIDTH) <= MAX_NR_GENS);
+	BUILD_BUG_ON(sizeof(MM_STAT_CODES) != NR_MM_STATS + 1);
 
 	return 0;
 };
-- 
GitLab


From 082bc8296ade0405f12c91e4d8b49de5efba4335 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 19:59:54 -0700
Subject: [PATCH 4724/4878] FROMLIST: mm: multi-gen LRU: optimize multiple
 memcgs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When multiple memcgs are available, it is possible to make better
choices based on generations and tiers and therefore improve the
overall performance under global memory pressure. This patch adds a
rudimentary optimization to select memcgs that can drop single-use
unmapped clean pages first. Doing so reduces the chance of going into
the aging path or swapping. These two operations can be costly.

A typical example that benefits from this optimization is a server
running mixed types of workloads, e.g., heavy anon workload in one
memcg and heavy buffered I/O workload in the other.

Though this optimization can be applied to both kswapd and direct
reclaim, it is only added to kswapd to keep the patchset manageable.
Later improvements will cover the direct reclaim path.

Server benchmark results:
  Mixed workloads:
    fio (buffered I/O): -[23, 25]%
                         IOPS         BW
      patch1-8:          2960k        11.3GiB/s
      patch1-9:          2248k        8783MiB/s

    memcached (anon): +[210, 214]%
                         Ops/sec      KB/sec
      patch1-8:          606940.09    23576.89
      patch1-9:          1895197.49   73619.93

  Mixed workloads:
    fio (buffered I/O): -[4, 6]%
                         IOPS         BW
      5.18-ed4643521e6a: 2369k        9255MiB/s
      patch1-9:          2248k        8783MiB/s

    memcached (anon): +[510, 516]%
                         Ops/sec      KB/sec
      5.18-ed4643521e6a: 309189.58    12010.61
      patch1-9:          1895197.49   73619.93

  Configurations:
    (changes since patch 6)

    cat mixed.sh
    modprobe brd rd_nr=2 rd_size=56623104

    swapoff -a
    mkswap /dev/ram0
    swapon /dev/ram0

    mkfs.ext4 /dev/ram1
    mount -t ext4 /dev/ram1 /mnt

    memtier_benchmark -S /var/run/memcached/memcached.sock \
      -P memcache_binary -n allkeys --key-minimum=1 \
      --key-maximum=50000000 --key-pattern=P:P -c 1 -t 36 \
      --ratio 1:0 --pipeline 8 -d 2000

    fio -name=mglru --numjobs=36 --directory=/mnt --size=1408m \
      --buffered=1 --ioengine=io_uring --iodepth=128 \
      --iodepth_batch_submit=32 --iodepth_batch_complete=32 \
      --rw=randread --random_distribution=random --norandommap \
      --time_based --ramp_time=10m --runtime=90m --group_reporting &
    pid=$!

    sleep 200

    memtier_benchmark -S /var/run/memcached/memcached.sock \
      -P memcache_binary -n allkeys --key-minimum=1 \
      --key-maximum=50000000 --key-pattern=R:R -c 1 -t 36 \
      --ratio 0:1 --pipeline 8 --randomize --distinct-client-seed

    kill -INT $pid
    wait

Client benchmark results:
  no change (CONFIG_MEMCG=n)

Link: https://lore.kernel.org/r/20220309021230.721028-10-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I0641467dbd7c5ba0645602cec7fe8d6fdb750edb
---
 mm/vmscan.c | 45 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 41 insertions(+), 4 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index e8ff26894b872..49afb679e6143 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -131,6 +131,13 @@ struct scan_control {
 	/* The file pages on the current node are dangerously low */
 	unsigned int file_is_tiny:1;
 
+#ifdef CONFIG_LRU_GEN
+	/* help make better choices when multiple memcgs are available */
+	unsigned int memcgs_need_aging:1;
+	unsigned int memcgs_need_swapping:1;
+	unsigned int memcgs_avoid_swapping:1;
+#endif
+
 	/* Allocation order */
 	s8 order;
 
@@ -3933,6 +3940,22 @@ static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
 
 	VM_BUG_ON(!current_is_kswapd());
 
+	/*
+	 * To reduce the chance of going into the aging path or swapping, which
+	 * can be costly, optimistically skip them unless their corresponding
+	 * flags were cleared in the eviction path. This improves the overall
+	 * performance when multiple memcgs are available.
+	 */
+	if (!sc->memcgs_need_aging) {
+		sc->memcgs_need_aging = true;
+		sc->memcgs_avoid_swapping = !sc->memcgs_need_swapping;
+		sc->memcgs_need_swapping = true;
+		return;
+	}
+
+	sc->memcgs_need_swapping = true;
+	sc->memcgs_avoid_swapping = true;
+
 	current->reclaim_state->mm_walk = &pgdat->mm_walk;
 
 	memcg = mem_cgroup_iter(NULL, NULL, NULL);
@@ -4334,7 +4357,8 @@ static int isolate_pages(struct lruvec *lruvec, struct scan_control *sc, int swa
 	return scanned;
 }
 
-static int evict_pages(struct lruvec *lruvec, struct scan_control *sc, int swappiness)
+static int evict_pages(struct lruvec *lruvec, struct scan_control *sc, int swappiness,
+		       bool *swapped)
 {
 	int type;
 	int scanned;
@@ -4399,6 +4423,9 @@ static int evict_pages(struct lruvec *lruvec, struct scan_control *sc, int swapp
 
 	sc->nr_reclaimed += reclaimed;
 
+	if (type == LRU_GEN_ANON && swapped)
+		*swapped = true;
+
 	return scanned;
 }
 
@@ -4427,8 +4454,10 @@ static long get_nr_to_scan(struct lruvec *lruvec, struct scan_control *sc, bool
 	if (!nr_to_scan)
 		return 0;
 
-	if (!need_aging)
+	if (!need_aging) {
+		sc->memcgs_need_aging = false;
 		return nr_to_scan;
+	}
 
 	/* leave the work to lru_gen_age_node() */
 	if (current_is_kswapd())
@@ -4450,6 +4479,8 @@ static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc
 {
 	struct blk_plug plug;
 	long scanned = 0;
+	bool swapped = false;
+	unsigned long reclaimed = sc->nr_reclaimed;
 	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
 
 	lru_add_drain();
@@ -4475,13 +4506,19 @@ static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc
 		if (!nr_to_scan)
 			break;
 
-		delta = evict_pages(lruvec, sc, swappiness);
+		delta = evict_pages(lruvec, sc, swappiness, &swapped);
 		if (!delta)
 			break;
 
+		if (sc->memcgs_avoid_swapping && swappiness < 200 && swapped)
+			break;
+
 		scanned += delta;
-		if (scanned >= nr_to_scan)
+		if (scanned >= nr_to_scan) {
+			if (!swapped && sc->nr_reclaimed - reclaimed >= MIN_LRU_BATCH)
+				sc->memcgs_need_swapping = false;
 			break;
+		}
 
 		cond_resched();
 	}
-- 
GitLab


From 76fdc1010bbda3904fe17c35d9d7feb0adc38ca0 Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 19:52:09 -0700
Subject: [PATCH 4725/4878] FROMLIST: mm: multi-gen LRU: kill switch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add /sys/kernel/mm/lru_gen/enabled as a kill switch. Components that
can be disabled include:
  0x0001: the multi-gen LRU core
  0x0002: walking page table, when arch_has_hw_pte_young() returns
          true
  0x0004: clearing the accessed bit in non-leaf PMD entries, when
          CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y
  [yYnN]: apply to all the components above
E.g.,
  echo y >/sys/kernel/mm/lru_gen/enabled
  cat /sys/kernel/mm/lru_gen/enabled
  0x0007
  echo 5 >/sys/kernel/mm/lru_gen/enabled
  cat /sys/kernel/mm/lru_gen/enabled
  0x0005

NB: the page table walks happen on the scale of seconds under heavy
memory pressure, in which case the mmap_lock contention is a lesser
concern, compared with the LRU lock contention and the I/O congestion.
So far the only well-known case of the mmap_lock contention happens on
Android, due to Scudo [1] which allocates several thousand VMAs for
merely a few hundred MBs. The SPF and the Maple Tree also have
provided their own assessments [2][3]. However, if walking page tables
does worsen the mmap_lock contention, the kill switch can be used to
disable it. In this case the multi-gen LRU will suffer a minor
performance degradation, as shown previously.

Clearing the accessed bit in non-leaf PMD entries can also be
disabled, since this behavior was not tested on x86 varieties other
than Intel and AMD.

[1] https://source.android.com/devices/tech/debug/scudo
[2] https://lore.kernel.org/lkml/20220128131006.67712-1-michel@lespinasse.org/
[3] https://lore.kernel.org/lkml/20220202024137.2516438-1-Liam.Howlett@oracle.com/

Link: https://lore.kernel.org/r/20220309021230.721028-11-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I71801d9470a2588cad8bfd14fbcfafc7b010aa03
---
 include/linux/cgroup.h          |  15 +-
 include/linux/mm_inline.h       |  12 +-
 include/linux/mmzone.h          |   9 ++
 kernel/cgroup/cgroup-internal.h |   1 -
 mm/Kconfig                      |   6 +
 mm/vmscan.c                     | 250 +++++++++++++++++++++++++++++++-
 6 files changed, 284 insertions(+), 9 deletions(-)

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 67b2190b1daef..ceecd7829d355 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -435,6 +435,18 @@ static inline void cgroup_put(struct cgroup *cgrp)
 	css_put(&cgrp->self);
 }
 
+extern struct mutex cgroup_mutex;
+
+static inline void cgroup_lock(void)
+{
+	mutex_lock(&cgroup_mutex);
+}
+
+static inline void cgroup_unlock(void)
+{
+	mutex_unlock(&cgroup_mutex);
+}
+
 /**
  * task_css_set_check - obtain a task's css_set with extra access conditions
  * @task: the task to obtain css_set for
@@ -449,7 +461,6 @@ static inline void cgroup_put(struct cgroup *cgrp)
  * as locks used during the cgroup_subsys::attach() methods.
  */
 #ifdef CONFIG_PROVE_RCU
-extern struct mutex cgroup_mutex;
 extern spinlock_t css_set_lock;
 #define task_css_set_check(task, __c)					\
 	rcu_dereference_check((task)->cgroups,				\
@@ -709,6 +720,8 @@ struct cgroup;
 static inline u64 cgroup_id(struct cgroup *cgrp) { return 1; }
 static inline void css_get(struct cgroup_subsys_state *css) {}
 static inline void css_put(struct cgroup_subsys_state *css) {}
+static inline void cgroup_lock(void) {}
+static inline void cgroup_unlock(void) {}
 static inline int cgroup_attach_task_all(struct task_struct *from,
 					 struct task_struct *t) { return 0; }
 static inline int cgroupstats_build(struct cgroupstats *stats,
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 68b60463dfc3e..af0790da3b9fe 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -93,7 +93,15 @@ static __always_inline enum lru_list page_lru(struct page *page)
 
 static inline bool lru_gen_enabled(void)
 {
-	return true;
+#ifdef CONFIG_LRU_GEN_ENABLED
+	DECLARE_STATIC_KEY_TRUE(lru_gen_caps[NR_LRU_GEN_CAPS]);
+
+	return static_branch_likely(&lru_gen_caps[LRU_GEN_CORE]);
+#else
+	DECLARE_STATIC_KEY_FALSE(lru_gen_caps[NR_LRU_GEN_CAPS]);
+
+	return static_branch_unlikely(&lru_gen_caps[LRU_GEN_CORE]);
+#endif
 }
 
 static inline bool lru_gen_in_fault(void)
@@ -183,7 +191,7 @@ static inline bool lru_gen_add_page(struct lruvec *lruvec, struct page *page, bo
 	int zone = page_zonenum(page);
 	struct lru_gen_struct *lrugen = &lruvec->lrugen;
 
-	if (PageUnevictable(page))
+	if (PageUnevictable(page) || !lrugen->enabled)
 		return false;
 	/*
 	 * There are three common cases for this page:
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index d28f9bdd50242..2db44a85f3ac3 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -344,6 +344,13 @@ enum {
 	LRU_GEN_FILE,
 };
 
+enum {
+	LRU_GEN_CORE,
+	LRU_GEN_MM_WALK,
+	LRU_GEN_NONLEAF_YOUNG,
+	NR_LRU_GEN_CAPS
+};
+
 #define MIN_LRU_BATCH		BITS_PER_LONG
 #define MAX_LRU_BATCH		(MIN_LRU_BATCH * 128)
 
@@ -382,6 +389,8 @@ struct lru_gen_struct {
 	/* can be modified without holding the LRU lock */
 	atomic_long_t evicted[NR_HIST_GENS][ANON_AND_FILE][MAX_NR_TIERS];
 	atomic_long_t refaulted[NR_HIST_GENS][ANON_AND_FILE][MAX_NR_TIERS];
+	/* whether the multi-gen LRU is enabled */
+	bool enabled;
 };
 
 enum {
diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h
index 02f32b13d9e52..df99cb9071471 100644
--- a/kernel/cgroup/cgroup-internal.h
+++ b/kernel/cgroup/cgroup-internal.h
@@ -146,7 +146,6 @@ struct cgroup_mgctx {
 #define DEFINE_CGROUP_MGCTX(name)						\
 	struct cgroup_mgctx name = CGROUP_MGCTX_INIT(name)
 
-extern struct mutex cgroup_mutex;
 extern spinlock_t css_set_lock;
 extern struct cgroup_subsys *cgroup_subsys[];
 extern struct list_head cgroup_roots;
diff --git a/mm/Kconfig b/mm/Kconfig
index d78a43ae35c82..c30e9d376e4a9 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -916,6 +916,12 @@ config LRU_GEN
 	help
 	  A high performance LRU implementation to overcommit memory.
 
+config LRU_GEN_ENABLED
+	bool "Enable by default"
+	depends on LRU_GEN
+	help
+	  This option enables the multi-gen LRU by default.
+
 config LRU_GEN_STATS
 	bool "Full stats for debugging"
 	depends on LRU_GEN
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 49afb679e6143..fd58875e745c8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -53,6 +53,7 @@
 #include <linux/psi.h>
 #include <linux/pagewalk.h>
 #include <linux/shmem_fs.h>
+#include <linux/ctype.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -2612,6 +2613,12 @@ out:
 
 #ifdef CONFIG_LRU_GEN
 
+#ifdef CONFIG_LRU_GEN_ENABLED
+DEFINE_STATIC_KEY_ARRAY_TRUE(lru_gen_caps, NR_LRU_GEN_CAPS);
+#else
+DEFINE_STATIC_KEY_ARRAY_FALSE(lru_gen_caps, NR_LRU_GEN_CAPS);
+#endif
+
 /******************************************************************************
  *                          shorthand helpers
  ******************************************************************************/
@@ -2648,6 +2655,15 @@ static int page_lru_tier(struct page *page)
 	return lru_tier_from_refs(refs);
 }
 
+static bool get_cap(int cap)
+{
+#ifdef CONFIG_LRU_GEN_ENABLED
+	return static_branch_likely(&lru_gen_caps[cap]);
+#else
+	return static_branch_unlikely(&lru_gen_caps[cap]);
+#endif
+}
+
 static struct lruvec *get_lruvec(struct mem_cgroup *memcg, int nid)
 {
 	struct pglist_data *pgdat = NODE_DATA(nid);
@@ -3453,7 +3469,8 @@ static void walk_pmd_range_locked(pud_t *pud, unsigned long next, struct vm_area
 			goto next;
 
 		if (!pmd_trans_huge(pmd[i])) {
-			if (IS_ENABLED(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG))
+			if (IS_ENABLED(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG) &&
+			    get_cap(LRU_GEN_NONLEAF_YOUNG))
 				pmdp_test_and_clear_young(vma, addr, pmd + i);
 			goto next;
 		}
@@ -3560,10 +3577,12 @@ restart:
 		priv->mm_stats[MM_PMD_TOTAL]++;
 
 #ifdef CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
-		if (!pmd_young(val))
-			continue;
+		if (get_cap(LRU_GEN_NONLEAF_YOUNG)) {
+			if (!pmd_young(val))
+				continue;
 
-		walk_pmd_range_locked(pud, addr, vma, walk, &pos);
+			walk_pmd_range_locked(pud, addr, vma, walk, &pos);
+		}
 #endif
 		if (!priv->full_scan && !test_bloom_filter(priv->lruvec, priv->max_seq, pmd + i))
 			continue;
@@ -3804,7 +3823,7 @@ static bool try_to_inc_max_seq(struct lruvec *lruvec, unsigned long max_seq,
 	 * handful of PTEs. Spreading the work out over a period of time usually
 	 * is less efficient, but it avoids bursty page faults.
 	 */
-	if (!full_scan && !arch_has_hw_pte_young()) {
+	if (!full_scan && (!arch_has_hw_pte_young() || !get_cap(LRU_GEN_MM_WALK))) {
 		success = iterate_mm_list_nowalk(lruvec, max_seq);
 		goto done;
 	}
@@ -4529,6 +4548,223 @@ static void lru_gen_shrink_lruvec(struct lruvec *lruvec, struct scan_control *sc
 	blk_finish_plug(&plug);
 }
 
+/******************************************************************************
+ *                          state change
+ ******************************************************************************/
+
+static bool __maybe_unused state_is_valid(struct lruvec *lruvec)
+{
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	if (lrugen->enabled) {
+		enum lru_list lru;
+
+		for_each_evictable_lru(lru) {
+			if (!list_empty(&lruvec->lists[lru]))
+				return false;
+		}
+	} else {
+		int gen, type, zone;
+
+		for_each_gen_type_zone(gen, type, zone) {
+			if (!list_empty(&lrugen->lists[gen][type][zone]))
+				return false;
+
+			/* unlikely but not a bug when reset_batch_size() is pending */
+			VM_WARN_ON(lrugen->nr_pages[gen][type][zone]);
+		}
+	}
+
+	return true;
+}
+
+static bool fill_evictable(struct lruvec *lruvec)
+{
+	enum lru_list lru;
+	int remaining = MAX_LRU_BATCH;
+
+	for_each_evictable_lru(lru) {
+		int type = is_file_lru(lru);
+		bool active = is_active_lru(lru);
+		struct list_head *head = &lruvec->lists[lru];
+
+		while (!list_empty(head)) {
+			bool success;
+			struct page *page = lru_to_page(head);
+
+			VM_BUG_ON_PAGE(PageTail(page), page);
+			VM_BUG_ON_PAGE(PageUnevictable(page), page);
+			VM_BUG_ON_PAGE(PageActive(page) != active, page);
+			VM_BUG_ON_PAGE(page_is_file_lru(page) != type, page);
+			VM_BUG_ON_PAGE(page_lru_gen(page) < MAX_NR_GENS, page);
+
+			prefetchw_prev_lru_page(page, head, flags);
+
+			del_page_from_lru_list(page, lruvec);
+			success = lru_gen_add_page(lruvec, page, false);
+			VM_BUG_ON(!success);
+
+			if (!--remaining)
+				return false;
+		}
+	}
+
+	return true;
+}
+
+static bool drain_evictable(struct lruvec *lruvec)
+{
+	int gen, type, zone;
+	int remaining = MAX_LRU_BATCH;
+
+	for_each_gen_type_zone(gen, type, zone) {
+		struct list_head *head = &lruvec->lrugen.lists[gen][type][zone];
+
+		while (!list_empty(head)) {
+			bool success;
+			struct page *page = lru_to_page(head);
+
+			VM_BUG_ON_PAGE(PageTail(page), page);
+			VM_BUG_ON_PAGE(PageUnevictable(page), page);
+			VM_BUG_ON_PAGE(PageActive(page), page);
+			VM_BUG_ON_PAGE(page_is_file_lru(page) != type, page);
+			VM_BUG_ON_PAGE(page_zonenum(page) != zone, page);
+
+			prefetchw_prev_lru_page(page, head, flags);
+
+			success = lru_gen_del_page(lruvec, page, false);
+			VM_BUG_ON(!success);
+			add_page_to_lru_list(page, lruvec);
+
+			if (!--remaining)
+				return false;
+		}
+	}
+
+	return true;
+}
+
+static void lru_gen_change_state(bool enable)
+{
+	static DEFINE_MUTEX(state_mutex);
+
+	struct mem_cgroup *memcg;
+
+	cgroup_lock();
+	cpus_read_lock();
+	get_online_mems();
+	mutex_lock(&state_mutex);
+
+	if (enable == lru_gen_enabled())
+		goto unlock;
+
+	if (enable)
+		static_branch_enable_cpuslocked(&lru_gen_caps[LRU_GEN_CORE]);
+	else
+		static_branch_disable_cpuslocked(&lru_gen_caps[LRU_GEN_CORE]);
+
+	memcg = mem_cgroup_iter(NULL, NULL, NULL);
+	do {
+		int nid;
+
+		for_each_node(nid) {
+			struct pglist_data *pgdat = NODE_DATA(nid);
+			struct lruvec *lruvec = get_lruvec(memcg, nid);
+
+			if (!lruvec)
+				continue;
+
+			if (!pgdat) {
+				lruvec->lrugen.enabled = enable;
+				continue;
+			}
+
+			spin_lock_irq(&pgdat->lru_lock);
+
+			VM_BUG_ON(!seq_is_valid(lruvec));
+			VM_BUG_ON(!state_is_valid(lruvec));
+
+			lruvec->lrugen.enabled = enable;
+
+			while (!(enable ? fill_evictable(lruvec) : drain_evictable(lruvec))) {
+				spin_unlock_irq(&pgdat->lru_lock);
+				cond_resched();
+				spin_lock_irq(&pgdat->lru_lock);
+			}
+
+			spin_unlock_irq(&pgdat->lru_lock);
+		}
+
+		cond_resched();
+	} while ((memcg = mem_cgroup_iter(NULL, memcg, NULL)));
+unlock:
+	mutex_unlock(&state_mutex);
+	put_online_mems();
+	cpus_read_unlock();
+	cgroup_unlock();
+}
+
+/******************************************************************************
+ *                          sysfs interface
+ ******************************************************************************/
+
+static ssize_t show_enable(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
+{
+	unsigned int caps = 0;
+
+	if (get_cap(LRU_GEN_CORE))
+		caps |= BIT(LRU_GEN_CORE);
+
+	if (arch_has_hw_pte_young() && get_cap(LRU_GEN_MM_WALK))
+		caps |= BIT(LRU_GEN_MM_WALK);
+
+	if (IS_ENABLED(CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG) && get_cap(LRU_GEN_NONLEAF_YOUNG))
+		caps |= BIT(LRU_GEN_NONLEAF_YOUNG);
+
+	return snprintf(buf, PAGE_SIZE, "0x%04x\n", caps);
+}
+
+static ssize_t store_enable(struct kobject *kobj, struct kobj_attribute *attr,
+			    const char *buf, size_t len)
+{
+	int i;
+	unsigned int caps;
+
+	if (tolower(*buf) == 'n')
+		caps = 0;
+	else if (tolower(*buf) == 'y')
+		caps = -1;
+	else if (kstrtouint(buf, 0, &caps))
+		return -EINVAL;
+
+	for (i = 0; i < NR_LRU_GEN_CAPS; i++) {
+		bool enable = caps & BIT(i);
+
+		if (i == LRU_GEN_CORE)
+			lru_gen_change_state(enable);
+		else if (enable)
+			static_branch_enable(&lru_gen_caps[i]);
+		else
+			static_branch_disable(&lru_gen_caps[i]);
+	}
+
+	return len;
+}
+
+static struct kobj_attribute lru_gen_enabled_attr = __ATTR(
+	enabled, 0644, show_enable, store_enable
+);
+
+static struct attribute *lru_gen_attrs[] = {
+	&lru_gen_enabled_attr.attr,
+	NULL
+};
+
+static struct attribute_group lru_gen_attr_group = {
+	.name = "lru_gen",
+	.attrs = lru_gen_attrs,
+};
+
 /******************************************************************************
  *                          initialization
  ******************************************************************************/
@@ -4539,6 +4775,7 @@ void lru_gen_init_lruvec(struct lruvec *lruvec)
 	struct lru_gen_struct *lrugen = &lruvec->lrugen;
 
 	lrugen->max_seq = MIN_NR_GENS + 1;
+	lrugen->enabled = lru_gen_enabled();
 
 	for_each_gen_type_zone(gen, type, zone)
 		INIT_LIST_HEAD(&lrugen->lists[gen][type][zone]);
@@ -4579,6 +4816,9 @@ static int __init init_lru_gen(void)
 	BUILD_BUG_ON(BIT(LRU_GEN_WIDTH) <= MAX_NR_GENS);
 	BUILD_BUG_ON(sizeof(MM_STAT_CODES) != NR_MM_STATS + 1);
 
+	if (sysfs_create_group(mm_kobj, &lru_gen_attr_group))
+		pr_err("lru_gen: failed to create sysfs group\n");
+
 	return 0;
 };
 late_initcall(init_lru_gen);
-- 
GitLab


From 96f4a592d31ad805c3114c7c2f0d3f117a09d14f Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 20:08:50 -0700
Subject: [PATCH 4726/4878] FROMLIST: mm: multi-gen LRU: thrashing prevention
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add /sys/kernel/mm/lru_gen/min_ttl_ms for thrashing prevention, as
requested by many desktop users [1].

When set to value N, it prevents the working set of N milliseconds
from getting evicted. The OOM killer is triggered if this working set
cannot be kept in memory. Based on the average human detectable lag
(~100ms), N=1000 usually eliminates intolerable lags due to thrashing.
Larger values like N=3000 make lags less noticeable at the risk of
premature OOM kills.

Compared with the size-based approach, e.g., [2], this time-based
approach has the following advantages:
1. It is easier to configure because it is agnostic to applications
   and memory sizes.
2. It is more reliable because it is directly wired to the OOM killer.

[1] https://lore.kernel.org/lkml/Ydza%2FzXKY9ATRoh6@google.com/
[2] https://lore.kernel.org/lkml/20211130201652.2218636d@mail.inbox.lv/

Link: https://lore.kernel.org/r/20220309021230.721028-12-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I482d33f3beaf7723d2f3eeaaa5b4f12bcb9b48a1
---
 include/linux/mmzone.h |  2 ++
 mm/vmscan.c            | 69 +++++++++++++++++++++++++++++++++++++++---
 2 files changed, 67 insertions(+), 4 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 2db44a85f3ac3..efb1e07457611 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -376,6 +376,8 @@ struct lru_gen_struct {
 	unsigned long max_seq;
 	/* the eviction increments the oldest generation numbers */
 	unsigned long min_seq[ANON_AND_FILE];
+	/* the birth time of each generation in jiffies */
+	unsigned long timestamps[MAX_NR_GENS];
 	/* the multi-gen LRU lists */
 	struct list_head lists[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES];
 	/* the sizes of the above lists */
diff --git a/mm/vmscan.c b/mm/vmscan.c
index fd58875e745c8..b16fe18e3bec4 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3801,6 +3801,7 @@ static void inc_max_seq(struct lruvec *lruvec)
 	for (type = 0; type < ANON_AND_FILE; type++)
 		reset_ctrl_pos(lruvec, type, false);
 
+	WRITE_ONCE(lrugen->timestamps[next], jiffies);
 	/* make sure preceding modifications appear */
 	smp_store_release(&lrugen->max_seq, lrugen->max_seq + 1);
 
@@ -3926,7 +3927,8 @@ static long get_nr_evictable(struct lruvec *lruvec, unsigned long max_seq,
 	return total > 0 ? total : 0;
 }
 
-static void age_lruvec(struct lruvec *lruvec, struct scan_control *sc)
+static bool age_lruvec(struct lruvec *lruvec, struct scan_control *sc,
+		       unsigned long min_ttl)
 {
 	bool need_aging;
 	long nr_to_scan;
@@ -3935,14 +3937,22 @@ static void age_lruvec(struct lruvec *lruvec, struct scan_control *sc)
 	DEFINE_MAX_SEQ(lruvec);
 	DEFINE_MIN_SEQ(lruvec);
 
+	if (min_ttl) {
+		int gen = lru_gen_from_seq(min_seq[LRU_GEN_FILE]);
+		unsigned long birth = READ_ONCE(lruvec->lrugen.timestamps[gen]);
+
+		if (time_is_after_jiffies(birth + min_ttl))
+			return false;
+	}
+
 	mem_cgroup_calculate_protection(NULL, memcg);
 
 	if (mem_cgroup_below_min(memcg))
-		return;
+		return false;
 
 	nr_to_scan = get_nr_evictable(lruvec, max_seq, min_seq, swappiness, &need_aging);
 	if (!nr_to_scan)
-		return;
+		return false;
 
 	nr_to_scan >>= sc->priority;
 
@@ -3951,11 +3961,18 @@ static void age_lruvec(struct lruvec *lruvec, struct scan_control *sc)
 
 	if (nr_to_scan && need_aging && (!mem_cgroup_below_low(memcg) || sc->memcg_low_reclaim))
 		try_to_inc_max_seq(lruvec, max_seq, sc, swappiness, false);
+
+	return true;
 }
 
+/* to protect the working set of the last N jiffies */
+static unsigned long lru_gen_min_ttl __read_mostly;
+
 static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
 {
 	struct mem_cgroup *memcg;
+	bool success = false;
+	unsigned long min_ttl = READ_ONCE(lru_gen_min_ttl);
 
 	VM_BUG_ON(!current_is_kswapd());
 
@@ -3981,12 +3998,29 @@ static void lru_gen_age_node(struct pglist_data *pgdat, struct scan_control *sc)
 	do {
 		struct lruvec *lruvec = mem_cgroup_lruvec(memcg, pgdat);
 
-		age_lruvec(lruvec, sc);
+		if (age_lruvec(lruvec, sc, min_ttl))
+			success = true;
 
 		cond_resched();
 	} while ((memcg = mem_cgroup_iter(NULL, memcg, NULL)));
 
 	current->reclaim_state->mm_walk = NULL;
+
+	/*
+	 * The main goal is to OOM kill if every generation from all memcgs is
+	 * younger than min_ttl. However, another theoretical possibility is all
+	 * memcgs are either below min or empty.
+	 */
+	if (!success && mutex_trylock(&oom_lock)) {
+		struct oom_control oc = {
+			.gfp_mask = sc->gfp_mask,
+			.order = sc->order,
+		};
+
+		out_of_memory(&oc);
+
+		mutex_unlock(&oom_lock);
+	}
 }
 
 /*
@@ -4708,6 +4742,28 @@ unlock:
  *                          sysfs interface
  ******************************************************************************/
 
+static ssize_t show_min_ttl(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%u\n", jiffies_to_msecs(READ_ONCE(lru_gen_min_ttl)));
+}
+
+static ssize_t store_min_ttl(struct kobject *kobj, struct kobj_attribute *attr,
+			     const char *buf, size_t len)
+{
+	unsigned int msecs;
+
+	if (kstrtouint(buf, 0, &msecs))
+		return -EINVAL;
+
+	WRITE_ONCE(lru_gen_min_ttl, msecs_to_jiffies(msecs));
+
+	return len;
+}
+
+static struct kobj_attribute lru_gen_min_ttl_attr = __ATTR(
+	min_ttl_ms, 0644, show_min_ttl, store_min_ttl
+);
+
 static ssize_t show_enable(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
 {
 	unsigned int caps = 0;
@@ -4756,6 +4812,7 @@ static struct kobj_attribute lru_gen_enabled_attr = __ATTR(
 );
 
 static struct attribute *lru_gen_attrs[] = {
+	&lru_gen_min_ttl_attr.attr,
 	&lru_gen_enabled_attr.attr,
 	NULL
 };
@@ -4771,12 +4828,16 @@ static struct attribute_group lru_gen_attr_group = {
 
 void lru_gen_init_lruvec(struct lruvec *lruvec)
 {
+	int i;
 	int gen, type, zone;
 	struct lru_gen_struct *lrugen = &lruvec->lrugen;
 
 	lrugen->max_seq = MIN_NR_GENS + 1;
 	lrugen->enabled = lru_gen_enabled();
 
+	for (i = 0; i <= MIN_NR_GENS + 1; i++)
+		lrugen->timestamps[i] = jiffies;
+
 	for_each_gen_type_zone(gen, type, zone)
 		INIT_LIST_HEAD(&lrugen->lists[gen][type][zone]);
 
-- 
GitLab


From 3cf1dfaaa513284b283d60b45717aaae3f03c90d Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Thu, 27 Jan 2022 20:12:41 -0700
Subject: [PATCH 4727/4878] FROMLIST: mm: multi-gen LRU: debugfs interface
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add /sys/kernel/debug/lru_gen for working set estimation and proactive
reclaim. These features are required to optimize job scheduling (bin
packing) in data centers [1][2].

Compared with the page table-based approach and the PFN-based
approach, e.g., mm/damon/[vp]addr.c, this lruvec-based approach has
the following advantages:
1. It offers better choices because it is aware of memcgs, NUMA nodes,
   shared mappings and unmapped page cache.
2. It is more scalable because it is O(nr_hot_pages), whereas the
   PFN-based approach is O(nr_total_pages).

Add /sys/kernel/debug/lru_gen_full for debugging.

[1] https://dl.acm.org/doi/10.1145/3297858.3304053
[2] https://dl.acm.org/doi/10.1145/3503222.3507731

Link: https://lore.kernel.org/r/20220309021230.721028-13-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: Ie558098e0a24a647f77f4eacc4d72576173fc0b8
---
 include/linux/nodemask.h |   1 +
 mm/vmscan.c              | 346 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 347 insertions(+)

diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index ac398e143c9a1..89fe4e3592f93 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -486,6 +486,7 @@ static inline int num_node_state(enum node_states state)
 #define first_online_node	0
 #define first_memory_node	0
 #define next_online_node(nid)	(MAX_NUMNODES)
+#define next_memory_node(nid)	(MAX_NUMNODES)
 #define nr_node_ids		1U
 #define nr_online_nodes		1U
 
diff --git a/mm/vmscan.c b/mm/vmscan.c
index b16fe18e3bec4..cb1a9b5b0729a 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -54,6 +54,7 @@
 #include <linux/pagewalk.h>
 #include <linux/shmem_fs.h>
 #include <linux/ctype.h>
+#include <linux/debugfs.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -4822,6 +4823,348 @@ static struct attribute_group lru_gen_attr_group = {
 	.attrs = lru_gen_attrs,
 };
 
+/******************************************************************************
+ *                          debugfs interface
+ ******************************************************************************/
+
+static void *lru_gen_seq_start(struct seq_file *m, loff_t *pos)
+{
+	struct mem_cgroup *memcg;
+	loff_t nr_to_skip = *pos;
+
+	m->private = kvmalloc(PATH_MAX, GFP_KERNEL);
+	if (!m->private)
+		return ERR_PTR(-ENOMEM);
+
+	memcg = mem_cgroup_iter(NULL, NULL, NULL);
+	do {
+		int nid;
+
+		for_each_node_state(nid, N_MEMORY) {
+			if (!nr_to_skip--)
+				return get_lruvec(memcg, nid);
+		}
+	} while ((memcg = mem_cgroup_iter(NULL, memcg, NULL)));
+
+	return NULL;
+}
+
+static void lru_gen_seq_stop(struct seq_file *m, void *v)
+{
+	if (!IS_ERR_OR_NULL(v))
+		mem_cgroup_iter_break(NULL, lruvec_memcg(v));
+
+	kvfree(m->private);
+	m->private = NULL;
+}
+
+static void *lru_gen_seq_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	int nid = lruvec_pgdat(v)->node_id;
+	struct mem_cgroup *memcg = lruvec_memcg(v);
+
+	++*pos;
+
+	nid = next_memory_node(nid);
+	if (nid == MAX_NUMNODES) {
+		memcg = mem_cgroup_iter(NULL, memcg, NULL);
+		if (!memcg)
+			return NULL;
+
+		nid = first_memory_node;
+	}
+
+	return get_lruvec(memcg, nid);
+}
+
+static void lru_gen_seq_show_full(struct seq_file *m, struct lruvec *lruvec,
+				  unsigned long max_seq, unsigned long *min_seq,
+				  unsigned long seq)
+{
+	int i;
+	int type, tier;
+	int hist = lru_hist_from_seq(seq);
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+
+	for (tier = 0; tier < MAX_NR_TIERS; tier++) {
+		seq_printf(m, "            %10d", tier);
+		for (type = 0; type < ANON_AND_FILE; type++) {
+			unsigned long n[3] = {};
+
+			if (seq == max_seq) {
+				n[0] = READ_ONCE(lrugen->avg_refaulted[type][tier]);
+				n[1] = READ_ONCE(lrugen->avg_total[type][tier]);
+
+				seq_printf(m, " %10luR %10luT %10lu ", n[0], n[1], n[2]);
+			} else if (seq == min_seq[type] || NR_HIST_GENS > 1) {
+				n[0] = atomic_long_read(&lrugen->refaulted[hist][type][tier]);
+				n[1] = atomic_long_read(&lrugen->evicted[hist][type][tier]);
+				if (tier)
+					n[2] = READ_ONCE(lrugen->protected[hist][type][tier - 1]);
+
+				seq_printf(m, " %10lur %10lue %10lup", n[0], n[1], n[2]);
+			} else
+				seq_puts(m, "          0           0           0 ");
+		}
+		seq_putc(m, '\n');
+	}
+
+	seq_puts(m, "                      ");
+	for (i = 0; i < NR_MM_STATS; i++) {
+		if (seq == max_seq && NR_HIST_GENS == 1)
+			seq_printf(m, " %10lu%c", READ_ONCE(lruvec->mm_state.stats[hist][i]),
+				   toupper(MM_STAT_CODES[i]));
+		else if (seq != max_seq && NR_HIST_GENS > 1)
+			seq_printf(m, " %10lu%c", READ_ONCE(lruvec->mm_state.stats[hist][i]),
+				   MM_STAT_CODES[i]);
+		else
+			seq_puts(m, "          0 ");
+	}
+	seq_putc(m, '\n');
+}
+
+static int lru_gen_seq_show(struct seq_file *m, void *v)
+{
+	unsigned long seq;
+	bool full = !debugfs_real_fops(m->file)->write;
+	struct lruvec *lruvec = v;
+	struct lru_gen_struct *lrugen = &lruvec->lrugen;
+	int nid = lruvec_pgdat(lruvec)->node_id;
+	struct mem_cgroup *memcg = lruvec_memcg(lruvec);
+	DEFINE_MAX_SEQ(lruvec);
+	DEFINE_MIN_SEQ(lruvec);
+
+	if (nid == first_memory_node) {
+		const char *path = memcg ? m->private : "";
+
+#ifdef CONFIG_MEMCG
+		if (memcg)
+			cgroup_path(memcg->css.cgroup, m->private, PATH_MAX);
+#endif
+		seq_printf(m, "memcg %5hu %s\n", mem_cgroup_id(memcg), path);
+	}
+
+	seq_printf(m, " node %5d\n", nid);
+
+	if (!full)
+		seq = min_seq[LRU_GEN_ANON];
+	else if (max_seq >= MAX_NR_GENS)
+		seq = max_seq - MAX_NR_GENS + 1;
+	else
+		seq = 0;
+
+	for (; seq <= max_seq; seq++) {
+		int type, zone;
+		int gen = lru_gen_from_seq(seq);
+		unsigned long birth = READ_ONCE(lruvec->lrugen.timestamps[gen]);
+
+		seq_printf(m, " %10lu %10u", seq, jiffies_to_msecs(jiffies - birth));
+
+		for (type = 0; type < ANON_AND_FILE; type++) {
+			long size = 0;
+			char mark = full && seq < min_seq[type] ? 'x' : ' ';
+
+			for (zone = 0; zone < MAX_NR_ZONES; zone++)
+				size += READ_ONCE(lrugen->nr_pages[gen][type][zone]);
+
+			seq_printf(m, " %10lu%c", max(size, 0L), mark);
+		}
+
+		seq_putc(m, '\n');
+
+		if (full)
+			lru_gen_seq_show_full(m, lruvec, max_seq, min_seq, seq);
+	}
+
+	return 0;
+}
+
+static const struct seq_operations lru_gen_seq_ops = {
+	.start = lru_gen_seq_start,
+	.stop = lru_gen_seq_stop,
+	.next = lru_gen_seq_next,
+	.show = lru_gen_seq_show,
+};
+
+static int run_aging(struct lruvec *lruvec, unsigned long seq, struct scan_control *sc,
+		     bool can_swap, bool full_scan)
+{
+	DEFINE_MAX_SEQ(lruvec);
+
+	if (seq == max_seq)
+		try_to_inc_max_seq(lruvec, max_seq, sc, can_swap, full_scan);
+
+	return seq > max_seq ? -EINVAL : 0;
+}
+
+static int run_eviction(struct lruvec *lruvec, unsigned long seq, struct scan_control *sc,
+			int swappiness, unsigned long nr_to_reclaim)
+{
+	struct blk_plug plug;
+	int err = -EINTR;
+	DEFINE_MAX_SEQ(lruvec);
+
+	if (seq + MIN_NR_GENS > max_seq)
+		return -EINVAL;
+
+	sc->nr_reclaimed = 0;
+
+	blk_start_plug(&plug);
+
+	while (!signal_pending(current)) {
+		DEFINE_MIN_SEQ(lruvec);
+
+		if (seq < min_seq[!swappiness] || sc->nr_reclaimed >= nr_to_reclaim ||
+		    !evict_pages(lruvec, sc, swappiness, NULL)) {
+			err = 0;
+			break;
+		}
+
+		cond_resched();
+	}
+
+	blk_finish_plug(&plug);
+
+	return err;
+}
+
+static int run_cmd(char cmd, int memcg_id, int nid, unsigned long seq,
+		   struct scan_control *sc, int swappiness, unsigned long opt)
+{
+	struct lruvec *lruvec;
+	int err = -EINVAL;
+	struct mem_cgroup *memcg = NULL;
+
+	if (!mem_cgroup_disabled()) {
+		rcu_read_lock();
+		memcg = mem_cgroup_from_id(memcg_id);
+#ifdef CONFIG_MEMCG
+		if (memcg && !css_tryget(&memcg->css))
+			memcg = NULL;
+#endif
+		rcu_read_unlock();
+
+		if (!memcg)
+			goto done;
+	}
+	if (memcg_id != mem_cgroup_id(memcg))
+		goto done;
+
+	if (nid < 0 || nid >= MAX_NUMNODES || !node_state(nid, N_MEMORY))
+		goto done;
+
+	lruvec = get_lruvec(memcg, nid);
+
+	if (swappiness < 0)
+		swappiness = get_swappiness(lruvec, sc);
+	else if (swappiness > 200)
+		goto done;
+
+	switch (cmd) {
+	case '+':
+		err = run_aging(lruvec, seq, sc, swappiness, opt);
+		break;
+	case '-':
+		err = run_eviction(lruvec, seq, sc, swappiness, opt);
+		break;
+	}
+done:
+	mem_cgroup_put(memcg);
+
+	return err;
+}
+
+static ssize_t lru_gen_seq_write(struct file *file, const char __user *src,
+				 size_t len, loff_t *pos)
+{
+	void *buf;
+	char *cur, *next;
+	unsigned int flags;
+	int err = 0;
+	struct scan_control sc = {
+		.may_writepage = true,
+		.may_unmap = true,
+		.may_swap = true,
+		.reclaim_idx = MAX_NR_ZONES - 1,
+		.gfp_mask = GFP_KERNEL,
+	};
+
+	buf = kvmalloc(len + 1, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (copy_from_user(buf, src, len)) {
+		kvfree(buf);
+		return -EFAULT;
+	}
+
+	next = buf;
+	next[len] = '\0';
+
+	sc.reclaim_state.mm_walk = alloc_mm_walk();
+	if (!sc.reclaim_state.mm_walk) {
+		kvfree(buf);
+		return -ENOMEM;
+	}
+
+	set_task_reclaim_state(current, &sc.reclaim_state);
+	flags = memalloc_noreclaim_save();
+
+	while ((cur = strsep(&next, ",;\n"))) {
+		int n;
+		int end;
+		char cmd;
+		unsigned int memcg_id;
+		unsigned int nid;
+		unsigned long seq;
+		unsigned int swappiness = -1;
+		unsigned long opt = -1;
+
+		cur = skip_spaces(cur);
+		if (!*cur)
+			continue;
+
+		n = sscanf(cur, "%c %u %u %lu %n %u %n %lu %n", &cmd, &memcg_id, &nid,
+			   &seq, &end, &swappiness, &end, &opt, &end);
+		if (n < 4 || cur[end]) {
+			err = -EINVAL;
+			break;
+		}
+
+		err = run_cmd(cmd, memcg_id, nid, seq, &sc, swappiness, opt);
+		if (err)
+			break;
+	}
+
+	memalloc_noreclaim_restore(flags);
+	set_task_reclaim_state(current, NULL);
+
+	free_mm_walk(sc.reclaim_state.mm_walk);
+	kvfree(buf);
+
+	return err ? : len;
+}
+
+static int lru_gen_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &lru_gen_seq_ops);
+}
+
+static const struct file_operations lru_gen_rw_fops = {
+	.open = lru_gen_seq_open,
+	.read = seq_read,
+	.write = lru_gen_seq_write,
+	.llseek = seq_lseek,
+	.release = seq_release,
+};
+
+static const struct file_operations lru_gen_ro_fops = {
+	.open = lru_gen_seq_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = seq_release,
+};
+
 /******************************************************************************
  *                          initialization
  ******************************************************************************/
@@ -4880,6 +5223,9 @@ static int __init init_lru_gen(void)
 	if (sysfs_create_group(mm_kobj, &lru_gen_attr_group))
 		pr_err("lru_gen: failed to create sysfs group\n");
 
+	debugfs_create_file("lru_gen", 0644, NULL, NULL, &lru_gen_rw_fops);
+	debugfs_create_file("lru_gen_full", 0444, NULL, NULL, &lru_gen_ro_fops);
+
 	return 0;
 };
 late_initcall(init_lru_gen);
-- 
GitLab


From 8b006e4d1cfc40a27ece56bf613e0464007d784d Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Sun, 23 Jan 2022 16:44:43 -0700
Subject: [PATCH 4728/4878] FROMLIST: mm: multi-gen LRU: admin guide
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add an admin guide.

Link: https://lore.kernel.org/r/20220309021230.721028-14-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I6fafbd7eb3ef6819cfcd30376459f14893f17c63
---
 Documentation/admin-guide/mm/index.rst        |   1 +
 Documentation/admin-guide/mm/multigen_lru.rst | 152 ++++++++++++++++++
 mm/Kconfig                                    |   3 +-
 3 files changed, 155 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/admin-guide/mm/multigen_lru.rst

diff --git a/Documentation/admin-guide/mm/index.rst b/Documentation/admin-guide/mm/index.rst
index cd727cfc1b040..2a2b5bd8299a8 100644
--- a/Documentation/admin-guide/mm/index.rst
+++ b/Documentation/admin-guide/mm/index.rst
@@ -31,6 +31,7 @@ the Linux memory management.
    idle_page_tracking
    ksm
    memory-hotplug
+   multigen_lru
    nommu-mmap
    numa_memory_policy
    numaperf
diff --git a/Documentation/admin-guide/mm/multigen_lru.rst b/Documentation/admin-guide/mm/multigen_lru.rst
new file mode 100644
index 0000000000000..3d9a6ef842298
--- /dev/null
+++ b/Documentation/admin-guide/mm/multigen_lru.rst
@@ -0,0 +1,152 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============
+Multi-Gen LRU
+=============
+The multi-gen LRU is an alternative LRU implementation that optimizes
+page reclaim and improves performance under memory pressure. Page
+reclaim decides the kernel's caching policy and ability to overcommit
+memory. It directly impacts the kswapd CPU usage and RAM efficiency.
+
+Quick start
+===========
+Build the kernel with the following configurations.
+
+* ``CONFIG_LRU_GEN=y``
+* ``CONFIG_LRU_GEN_ENABLED=y``
+
+All set!
+
+Runtime options
+===============
+``/sys/kernel/mm/lru_gen/`` contains stable ABIs described in the
+following subsections.
+
+Kill switch
+-----------
+``enable`` accepts different values to enable or disable the following
+components. Its default value depends on ``CONFIG_LRU_GEN_ENABLED``.
+All the components should be enabled unless some of them have
+unforeseen side effects. Writing to ``enable`` has no effect when a
+component is not supported by the hardware, and valid values will be
+accepted even when the main switch is off.
+
+====== ===============================================================
+Values Components
+====== ===============================================================
+0x0001 The main switch for the multi-gen LRU.
+0x0002 Clearing the accessed bit in leaf page table entries in large
+       batches, when MMU sets it (e.g., on x86). This behavior can
+       theoretically worsen lock contention (mmap_lock). If it is
+       disabled, the multi-gen LRU will suffer a minor performance
+       degradation.
+0x0004 Clearing the accessed bit in non-leaf page table entries as
+       well, when MMU sets it (e.g., on x86). This behavior was not
+       verified on x86 varieties other than Intel and AMD. If it is
+       disabled, the multi-gen LRU will suffer a negligible
+       performance degradation.
+[yYnN] Apply to all the components above.
+====== ===============================================================
+
+E.g.,
+::
+
+    echo y >/sys/kernel/mm/lru_gen/enabled
+    cat /sys/kernel/mm/lru_gen/enabled
+    0x0007
+    echo 5 >/sys/kernel/mm/lru_gen/enabled
+    cat /sys/kernel/mm/lru_gen/enabled
+    0x0005
+
+Thrashing prevention
+--------------------
+Personal computers are more sensitive to thrashing because it can
+cause janks (lags when rendering UI) and negatively impact user
+experience. The multi-gen LRU offers thrashing prevention to the
+majority of laptop and desktop users who do not have ``oomd``.
+
+Users can write ``N`` to ``min_ttl_ms`` to prevent the working set of
+``N`` milliseconds from getting evicted. The OOM killer is triggered
+if this working set cannot be kept in memory. In other words, this
+option works as an adjustable pressure relief valve, and when open, it
+terminates applications that are hopefully not being used.
+
+Based on the average human detectable lag (~100ms), ``N=1000`` usually
+eliminates intolerable janks due to thrashing. Larger values like
+``N=3000`` make janks less noticeable at the risk of premature OOM
+kills.
+
+The default value ``0`` means disabled.
+
+Experimental features
+=====================
+``/sys/kernel/debug/lru_gen`` accepts commands described in the
+following subsections. Multiple command lines are supported, so does
+concatenation with delimiters ``,`` and ``;``.
+
+``/sys/kernel/debug/lru_gen_full`` provides additional stats for
+debugging. ``CONFIG_LRU_GEN_STATS=y`` keeps historical stats from
+evicted generations in this file.
+
+Working set estimation
+----------------------
+Working set estimation measures how much memory an application
+requires in a given time interval, and it is usually done with little
+impact on the performance of the application. E.g., data centers want
+to optimize job scheduling (bin packing) to improve memory
+utilizations. When a new job comes in, the job scheduler needs to find
+out whether each server it manages can allocate a certain amount of
+memory for this new job before it can pick a candidate. To do so, this
+job scheduler needs to estimate the working sets of the existing jobs.
+
+When it is read, ``lru_gen`` returns a histogram of numbers of pages
+accessed over different time intervals for each memcg and node.
+``MAX_NR_GENS`` decides the number of bins for each histogram.
+::
+
+    memcg  memcg_id  memcg_path
+       node  node_id
+           min_gen_nr  age_in_ms  nr_anon_pages  nr_file_pages
+           ...
+           max_gen_nr  age_in_ms  nr_anon_pages  nr_file_pages
+
+Each generation contains an estimated number of pages that have been
+accessed within ``age_in_ms`` non-cumulatively. E.g., ``min_gen_nr``
+contains the coldest pages and ``max_gen_nr`` contains the hottest
+pages, since ``age_in_ms`` of the former is the largest and that of
+the latter is the smallest.
+
+Users can write ``+ memcg_id node_id max_gen_nr
+[can_swap[full_scan]]`` to ``lru_gen`` to create a new generation
+``max_gen_nr+1``. ``can_swap`` defaults to the swap setting and, if it
+is set to ``1``, it forces the scan of anon pages when swap is off.
+``full_scan`` defaults to ``1`` and, if it is set to ``0``, it reduces
+the overhead as well as the coverage when scanning page tables.
+
+A typical use case is that a job scheduler writes to ``lru_gen`` at a
+certain time interval to create new generations, and it ranks the
+servers it manages based on the sizes of their cold memory defined by
+this time interval.
+
+Proactive reclaim
+-----------------
+Proactive reclaim induces memory reclaim when there is no memory
+pressure and usually targets cold memory only. E.g., when a new job
+comes in, the job scheduler wants to proactively reclaim memory on the
+server it has selected to improve the chance of successfully landing
+this new job.
+
+Users can write ``- memcg_id node_id min_gen_nr [swappiness
+[nr_to_reclaim]]`` to ``lru_gen`` to evict generations less than or
+equal to ``min_gen_nr``. Note that ``min_gen_nr`` should be less than
+``max_gen_nr-1`` as ``max_gen_nr`` and ``max_gen_nr-1`` are not fully
+aged and therefore cannot be evicted. ``swappiness`` overrides the
+default value in ``/proc/sys/vm/swappiness``. ``nr_to_reclaim`` limits
+the number of pages to evict.
+
+A typical use case is that a job scheduler writes to ``lru_gen``
+before it tries to land a new job on a server, and if it fails to
+materialize the cold memory without impacting the existing jobs on
+this server, it retries on the next server according to the ranking
+result obtained from the working set estimation step described
+earlier.
diff --git a/mm/Kconfig b/mm/Kconfig
index c30e9d376e4a9..a0fe418652bae 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -914,7 +914,8 @@ config LRU_GEN
 	# the following options can use up the spare bits in page flags
 	depends on !MAXSMP && (64BIT || !SPARSEMEM || SPARSEMEM_VMEMMAP)
 	help
-	  A high performance LRU implementation to overcommit memory.
+	  A high performance LRU implementation to overcommit memory. See
+	  Documentation/admin-guide/mm/multigen_lru.rst for details.
 
 config LRU_GEN_ENABLED
 	bool "Enable by default"
-- 
GitLab


From 306dbfb34c0b234faeea24cd51c358d7a8eac1ee Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Sun, 6 Mar 2022 20:35:00 -0700
Subject: [PATCH 4729/4878] FROMLIST: mm: multi-gen LRU: design doc
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Add a design doc.

Link: https://lore.kernel.org/r/20220309021230.721028-15-yuzhao@google.com/
Signed-off-by: Yu Zhao <yuzhao@google.com>
Acked-by: Brian Geffon <bgeffon@google.com>
Acked-by: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
Acked-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Acked-by: Steven Barrett <steven@liquorix.net>
Acked-by: Suleiman Souhlal <suleiman@google.com>
Tested-by: Daniel Byrne <djbyrne@mtu.edu>
Tested-by: Donald Carr <d@chaos-reins.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Tested-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Tested-by: Shuang Zhai <szhai2@cs.rochester.edu>
Tested-by: Sofia Trinh <sofia.trinh@edi.works>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Bug: 227651406
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I1d66302e618416291ebf9647e20625fb76613c89
---
 Documentation/vm/index.rst        |   1 +
 Documentation/vm/multigen_lru.rst | 160 ++++++++++++++++++++++++++++++
 2 files changed, 161 insertions(+)
 create mode 100644 Documentation/vm/multigen_lru.rst

diff --git a/Documentation/vm/index.rst b/Documentation/vm/index.rst
index eff5fbd492d08..9f80cc8a1cd9e 100644
--- a/Documentation/vm/index.rst
+++ b/Documentation/vm/index.rst
@@ -41,6 +41,7 @@ descriptions of data structures and algorithms.
    ksm
    memory-model
    mmu_notifier
+   multigen_lru
    numa
    overcommit-accounting
    page_migration
diff --git a/Documentation/vm/multigen_lru.rst b/Documentation/vm/multigen_lru.rst
new file mode 100644
index 0000000000000..8f6498002576c
--- /dev/null
+++ b/Documentation/vm/multigen_lru.rst
@@ -0,0 +1,160 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============
+Multi-Gen LRU
+=============
+The multi-gen LRU is an alternative LRU implementation that optimizes
+page reclaim and improves performance under memory pressure. Page
+reclaim decides the kernel's caching policy and ability to overcommit
+memory. It directly impacts the kswapd CPU usage and RAM efficiency.
+
+Design overview
+===============
+Objectives
+----------
+The design objectives are:
+
+* Good representation of access recency
+* Try to profit from spatial locality
+* Fast paths to make obvious choices
+* Simple self-correcting heuristics
+
+The representation of access recency is at the core of all LRU
+implementations. In the multi-gen LRU, each generation represents a
+group of pages with similar access recency. Generations establish a
+common frame of reference and therefore help make better choices,
+e.g., between different memcgs on a computer or different computers in
+a data center (for job scheduling).
+
+Exploiting spatial locality improves efficiency when gathering the
+accessed bit. A rmap walk targets a single page and does not try to
+profit from discovering a young PTE. A page table walk can sweep all
+the young PTEs in an address space, but the address space can be too
+large to make a profit. The key is to optimize both methods and use
+them in combination.
+
+Fast paths reduce code complexity and runtime overhead. Unmapped pages
+do not require TLB flushes; clean pages do not require writeback.
+These facts are only helpful when other conditions, e.g., access
+recency, are similar. With generations as a common frame of reference,
+additional factors stand out. But obvious choices might not be good
+choices; thus self-correction is required.
+
+The benefits of simple self-correcting heuristics are self-evident.
+Again, with generations as a common frame of reference, this becomes
+attainable. Specifically, pages in the same generation can be
+categorized based on additional factors, and a feedback loop can
+statistically compare the refault percentages across those categories
+and infer which of them are better choices.
+
+Assumptions
+-----------
+The protection of hot pages and the selection of cold pages are based
+on page access channels and patterns. There are two access channels:
+
+* Accesses through page tables
+* Accesses through file descriptors
+
+The protection of the former channel is by design stronger because:
+
+1. The uncertainty in determining the access patterns of the former
+   channel is higher due to the approximation of the accessed bit.
+2. The cost of evicting the former channel is higher due to the TLB
+   flushes required and the likelihood of encountering the dirty bit.
+3. The penalty of underprotecting the former channel is higher because
+   applications usually do not prepare themselves for major page
+   faults like they do for blocked I/O. E.g., GUI applications
+   commonly use dedicated I/O threads to avoid blocking the rendering
+   threads.
+
+There are also two access patterns:
+
+* Accesses exhibiting temporal locality
+* Accesses not exhibiting temporal locality
+
+For the reasons listed above, the former channel is assumed to follow
+the former pattern unless ``VM_SEQ_READ`` or ``VM_RAND_READ`` is
+present, and the latter channel is assumed to follow the latter
+pattern unless outlying refaults have been observed.
+
+Workflow overview
+=================
+Evictable pages are divided into multiple generations for each
+``lruvec``. The youngest generation number is stored in
+``lrugen->max_seq`` for both anon and file types as they are aged on
+an equal footing. The oldest generation numbers are stored in
+``lrugen->min_seq[]`` separately for anon and file types as clean file
+pages can be evicted regardless of swap constraints. These three
+variables are monotonically increasing.
+
+Generation numbers are truncated into ``order_base_2(MAX_NR_GENS+1)``
+bits in order to fit into the gen counter in ``page->flags``. Each
+truncated generation number is an index to ``lrugen->lists[]``. The
+sliding window technique is used to track at least ``MIN_NR_GENS`` and
+at most ``MAX_NR_GENS`` generations. The gen counter stores a value
+within ``[1, MAX_NR_GENS]`` while a page is on one of
+``lrugen->lists[]``; otherwise it stores zero.
+
+Each generation is divided into multiple tiers. Tiers represent
+different ranges of numbers of accesses through file descriptors. A
+page accessed ``N`` times through file descriptors is in tier
+``order_base_2(N)``. In contrast to moving across generations, which
+requires the LRU lock, moving across tiers only requires operations on
+``page->flags`` and therefore has a negligible cost. A feedback loop
+modeled after the PID controller monitors refaults over all the tiers
+from anon and file types and decides which tiers from which types to
+evict or protect.
+
+There are two conceptually independent procedures: the aging and the
+eviction. They form a closed-loop system, i.e., the page reclaim.
+
+Aging
+-----
+The aging produces young generations. Given an ``lruvec``, it
+increments ``max_seq`` when ``max_seq-min_seq+1`` approaches
+``MIN_NR_GENS``. The aging promotes hot pages to the youngest
+generation when it finds them accessed through page tables; the
+demotion of cold pages happens consequently when it increments
+``max_seq``. The aging uses page table walks and rmap walks to find
+young PTEs. For the former, it iterates ``lruvec_memcg()->mm_list``
+and calls ``walk_page_range()`` with each ``mm_struct`` on this list
+to scan PTEs. On finding a young PTE, it clears the accessed bit and
+updates the gen counter of the page mapped by this PTE to
+``(max_seq%MAX_NR_GENS)+1``. After each iteration of this list, it
+increments ``max_seq``. For the latter, when the eviction walks the
+rmap and finds a young PTE, the aging scans the adjacent PTEs and
+follows the same steps just described.
+
+Eviction
+--------
+The eviction consumes old generations. Given an ``lruvec``, it
+increments ``min_seq`` when ``lrugen->lists[]`` indexed by
+``min_seq%MAX_NR_GENS`` becomes empty. To select a type and a tier to
+evict from, it first compares ``min_seq[]`` to select the older type.
+If both types are equally old, it selects the one whose first tier has
+a lower refault percentage. The first tier contains single-use
+unmapped clean pages, which are the best bet. The eviction sorts a
+page according to the gen counter if the aging has found this page
+accessed through page tables and updated the gen counter. It also
+moves a page to the next generation, i.e., ``min_seq+1``, if this page
+was accessed multiple times through file descriptors and the feedback
+loop has detected outlying refaults from the tier this page is in. To
+do this, the feedback loop uses the first tier as the baseline, for
+the reason stated earlier.
+
+Summary
+-------
+The multi-gen LRU can be disassembled into the following parts:
+
+* Generations
+* Page table walks
+* Rmap walks
+* Bloom filters
+* The PID controller
+
+The aging and the eviction is a producer-consumer model; specifically,
+the latter drives the former by the sliding window over generations.
+Within the aging, rmap walks drive page table walks by inserting hot
+densely populated page tables to the Bloom filters. Within the
+eviction, the PID controller uses refaults as the feedback to select
+types to evict and tiers to protect.
-- 
GitLab


From 321995d2809ba4ffda82f9393db6a9f59ef1c76e Mon Sep 17 00:00:00 2001
From: Yu Zhao <yuzhao@google.com>
Date: Wed, 30 Mar 2022 20:34:59 -0600
Subject: [PATCH 4730/4878] ANDROID: GKI: build multi-gen LRU

CONFIG_LRU_GEN=y to build multi-gen LRU.

To enable it, echo y >/sys/kernel/mm/lru_gen/enabled.

Bug: 227651406
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: If5f6ece8373f1da2eb1eb96d809a2e216ebc0fbc
---
 arch/arm64/configs/gki_defconfig | 1 +
 arch/x86/configs/gki_defconfig   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index aa1130c00355b..0809508013924 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -124,6 +124,7 @@ CONFIG_CMA_SYSFS=y
 CONFIG_CMA_AREAS=16
 CONFIG_READ_ONLY_THP_FOR_FS=y
 CONFIG_ANON_VMA_NAME=y
+CONFIG_LRU_GEN=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 1eb28d0b8273c..083731791dc14 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -99,6 +99,7 @@ CONFIG_CMA_SYSFS=y
 CONFIG_CMA_AREAS=16
 CONFIG_READ_ONLY_THP_FOR_FS=y
 CONFIG_ANON_VMA_NAME=y
+CONFIG_LRU_GEN=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
-- 
GitLab


From acb0ef885c6c30190ac29eff3cd06e8d22423af9 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Thu, 17 Mar 2022 16:54:28 -0700
Subject: [PATCH 4731/4878] ANDROID: scsi: ufs: Minimize the difference with
 the upstream code

Make the order of function declarations match the order in the upstream
code.

Bug: 204438323
Change-Id: Iac453cdb5ae67184c4218639ab8b91da03fabc66
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 88bc1b9c8768d..b8fee040820ac 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1219,11 +1219,11 @@ int ufshcd_read_desc_param(struct ufs_hba *hba,
 			   u8 param_offset,
 			   u8 *param_read_buf,
 			   u8 param_size);
+int ufshcd_query_attr_retry(struct ufs_hba *hba, enum query_opcode opcode,
+			    enum attr_idn idn, u8 index, u8 selector,
+			    u32 *attr_val);
 int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
 		      enum attr_idn idn, u8 index, u8 selector, u32 *attr_val);
-int ufshcd_query_attr_retry(struct ufs_hba *hba,
-	enum query_opcode opcode, enum attr_idn idn, u8 index, u8 selector,
-	u32 *attr_val);
 int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
 	enum flag_idn idn, u8 index, bool *flag_res);
 int ufshcd_query_flag_retry(struct ufs_hba *hba,
-- 
GitLab


From 4f4bf31d39ed8f0c1ba136456e8760bf3ead1adf Mon Sep 17 00:00:00 2001
From: Bean Huo <beanhuo@micron.com>
Date: Thu, 11 Nov 2021 23:24:52 +0100
Subject: [PATCH 4732/4878] FROMGIT: scsi: ufs: ufshpb: Fix warning in
 ufshpb_set_hpb_read_to_upiu()

Fix the following sparse warnings in ufshpb_set_hpb_read_to_upiu():

sparse warnings: (new ones prefixed by >>)
drivers/scsi/ufs/ufshpb.c:335:27: sparse: sparse: cast from restricted __be64
drivers/scsi/ufs/ufshpb.c:335:25: sparse: expected restricted __be64 [usertype] ppn_tmp
drivers/scsi/ufs/ufshpb.c:335:25: sparse: got unsigned long long [usertype]

Link: https://lore.kernel.org/r/20211111222452.384089-1-huobean@gmail.com
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 73185a13773af10264f9d8ee70386c01c849ff2c git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I6770255dab00a3ff8c5f7b4499efdfa0dd53839c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshpb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index 40c6c4515e6c6..63078ce2a70e5 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -320,7 +320,7 @@ ufshpb_set_hpb_read_to_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
 	cdb[0] = UFSHPB_READ;
 
 	if (hba->dev_quirks & UFS_DEVICE_QUIRK_SWAP_L2P_ENTRY_FOR_HPB_READ)
-		ppn_tmp = swab64(ppn);
+		ppn_tmp = (__force __be64)swab64((__force u64)ppn);
 
 	/* ppn value is stored as big-endian in the host memory */
 	memcpy(&cdb[6], &ppn_tmp, sizeof(__be64));
-- 
GitLab


From b65cfd7b921fbb1dcc34e9f8b1505ab77e4ddf4d Mon Sep 17 00:00:00 2001
From: Ye Guojin <ye.guojin@zte.com.cn>
Date: Wed, 10 Nov 2021 10:51:33 +0000
Subject: [PATCH 4733/4878] FROMGIT: scsi: ufs: ufs-mediatek: Add put_device()
 after of_find_device_by_node()

This was found by coccicheck:

./drivers/scsi/ufs/ufs-mediatek.c, 211, 1-7, ERROR missing put_device;
call of_find_device_by_node on line 1185, but without a corresponding
object release within this function.

Link: https://lore.kernel.org/r/20211110105133.150171-1-ye.guojin@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit cc03facb1c4248997592fc683518c00cc257db1a git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Change-Id: I0aa3e8be7f7bc84d5c9b4dc3fb1e5586bc7e5ddf
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index fc5b214347b36..5393b5c9dd9c8 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -1189,6 +1189,7 @@ static int ufs_mtk_probe(struct platform_device *pdev)
 	}
 	link = device_link_add(dev, &reset_pdev->dev,
 		DL_FLAG_AUTOPROBE_CONSUMER);
+	put_device(&reset_pdev->dev);
 	if (!link) {
 		dev_notice(dev, "add reset device_link fail\n");
 		goto skip_reset;
-- 
GitLab


From d87405c2fe78fab1bb790309e6056d02a6909033 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 24 Nov 2021 22:42:18 +0200
Subject: [PATCH 4734/4878] FROMGIT: scsi: ufs: ufs-pci: Add support for Intel
 ADL

Add PCI ID and callbacks to support Intel Alder Lake.

Link: https://lore.kernel.org/r/20211124204218.1784559-1-adrian.hunter@intel.com
Cc: stable@vger.kernel.org # v5.15+
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 7dc9fb47bc9a95f1cc6c5655341860c5e50f91d4 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I370ad2e01bc67fec675f4c2ebf7f5d222d0afb07
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd-pci.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index a673eedb2f059..f76692053ca17 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -421,6 +421,13 @@ static int ufs_intel_lkf_init(struct ufs_hba *hba)
 	return err;
 }
 
+static int ufs_intel_adl_init(struct ufs_hba *hba)
+{
+	hba->nop_out_timeout = 200;
+	hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8;
+	return ufs_intel_common_init(hba);
+}
+
 static struct ufs_hba_variant_ops ufs_intel_cnl_hba_vops = {
 	.name                   = "intel-pci",
 	.init			= ufs_intel_common_init,
@@ -449,6 +456,15 @@ static struct ufs_hba_variant_ops ufs_intel_lkf_hba_vops = {
 	.device_reset		= ufs_intel_device_reset,
 };
 
+static struct ufs_hba_variant_ops ufs_intel_adl_hba_vops = {
+	.name			= "intel-pci",
+	.init			= ufs_intel_adl_init,
+	.exit			= ufs_intel_common_exit,
+	.link_startup_notify	= ufs_intel_link_startup_notify,
+	.resume			= ufs_intel_resume,
+	.device_reset		= ufs_intel_device_reset,
+};
+
 #ifdef CONFIG_PM_SLEEP
 static int ufshcd_pci_restore(struct device *dev)
 {
@@ -561,6 +577,8 @@ static const struct pci_device_id ufshcd_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x4B41), (kernel_ulong_t)&ufs_intel_ehl_hba_vops },
 	{ PCI_VDEVICE(INTEL, 0x4B43), (kernel_ulong_t)&ufs_intel_ehl_hba_vops },
 	{ PCI_VDEVICE(INTEL, 0x98FA), (kernel_ulong_t)&ufs_intel_lkf_hba_vops },
+	{ PCI_VDEVICE(INTEL, 0x51FF), (kernel_ulong_t)&ufs_intel_adl_hba_vops },
+	{ PCI_VDEVICE(INTEL, 0x54FF), (kernel_ulong_t)&ufs_intel_adl_hba_vops },
 	{ }	/* terminate list */
 };
 
-- 
GitLab


From 1fc4aef3d5bfc83f091582952c331f62e8d0886e Mon Sep 17 00:00:00 2001
From: SEO HOYOUNG <hy50.seo@samsung.com>
Date: Fri, 7 Jan 2022 06:39:24 +0900
Subject: [PATCH 4735/4878] FROMGIT: scsi: ufs: Modify Tactive time setting
 conditions

The Tactive time determines the waiting time before burst at hibern8 exit
and is determined by hardware at linkup time. However, in the case of
Samsung devices, increase host's Tactive time +100us for stability. If the
HCI's Tactive time is equal or greater than the device, +100us should be
set.

Link: https://lore.kernel.org/r/20220106213924.186263-1-hy50.seo@samsung.com
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: SEO HOYOUNG <hy50.seo@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 9008661e19606bdf6dddd33073b70872da400590 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I6ffe1c279cab9b780558de763e94cf01cfd4be3e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d892faaef7bf2..88ddf60bbb069 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7864,7 +7864,7 @@ static int ufshcd_quirk_tune_host_pa_tactivate(struct ufs_hba *hba)
 	peer_pa_tactivate_us = peer_pa_tactivate *
 			     gran_to_us_table[peer_granularity - 1];
 
-	if (pa_tactivate_us > peer_pa_tactivate_us) {
+	if (pa_tactivate_us >= peer_pa_tactivate_us) {
 		u32 new_peer_pa_tactivate;
 
 		new_peer_pa_tactivate = pa_tactivate_us /
-- 
GitLab


From aeedc786797e385d7e208147e8c6cc1de2a6208c Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Wed, 22 Dec 2021 07:09:30 +0000
Subject: [PATCH 4736/4878] FROMGIT: scsi: ufs: ufs-mediatek: Fix error
 checking in ufs_mtk_init_va09_pwr_ctrl()

The function regulator_get() returns an error pointer. Use IS_ERR() to
validate the return value.

Link: https://lore.kernel.org/r/20211222070930.9449-1-linmq006@gmail.com
Fixes: cf137b3ea49a ("scsi: ufs-mediatek: Support VA09 regulator operations")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 3ba880a12df5aa4488c18281701b5b1bc3d4531a git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I9b6d2fbb9d1d795f30e7873837b59dbf76569d1b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs-mediatek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 5393b5c9dd9c8..86a938075f308 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -557,7 +557,7 @@ static void ufs_mtk_init_va09_pwr_ctrl(struct ufs_hba *hba)
 	struct ufs_mtk_host *host = ufshcd_get_variant(hba);
 
 	host->reg_va09 = regulator_get(hba->dev, "va09");
-	if (!host->reg_va09)
+	if (IS_ERR(host->reg_va09))
 		dev_info(hba->dev, "failed to get va09");
 	else
 		host->caps |= UFS_MTK_CAP_VA09_PWR_CTRL;
-- 
GitLab


From 44b7a4f00fcd2744a5e2e16b9cc42687c0b1dd4a Mon Sep 17 00:00:00 2001
From: Kiwoong Kim <kwmad.kim@samsung.com>
Date: Fri, 21 Jan 2022 14:33:02 +0900
Subject: [PATCH 4737/4878] FROMGIT: scsi: ufs: Use generic error code in
 ufshcd_set_dev_pwr_mode()

The return value of ufshcd_set_dev_pwr_mode() is passed to device PM
core. However, the function currently returns a SCSI result which the PM
core doesn't understand.  This might lead to unexpected behaviors in
userland; a platform reset was observed in Android.

Use a generic error code for SSU failures.

Link: https://lore.kernel.org/r/1642743182-54098-1-git-send-email-kwmad.kim@samsung.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit ad6c8a426446873febc98140d81d5353f8c0825b git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I051742cd8ea2215cbd94ac3dedc4fab2863a9c6e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 88ddf60bbb069..0dbd7774dc823 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8664,7 +8664,7 @@ static void ufshcd_hba_exit(struct ufs_hba *hba)
  * @pwr_mode: device power mode to set
  *
  * Returns 0 if requested power mode is set successfully
- * Returns non-zero if failed to set the requested power mode
+ * Returns < 0 if failed to set the requested power mode
  */
 static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 				     enum ufs_dev_pwr_mode pwr_mode)
@@ -8718,8 +8718,11 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
 		sdev_printk(KERN_WARNING, sdp,
 			    "START_STOP failed for power mode: %d, result %x\n",
 			    pwr_mode, ret);
-		if (ret > 0 && scsi_sense_valid(&sshdr))
-			scsi_print_sense_hdr(sdp, NULL, &sshdr);
+		if (ret > 0) {
+			if (scsi_sense_valid(&sshdr))
+				scsi_print_sense_hdr(sdp, NULL, &sshdr);
+			ret = -EIO;
+		}
 	}
 
 	if (!ret)
-- 
GitLab


From 85d759e39acd848fb02727376ca9504977ca6e92 Mon Sep 17 00:00:00 2001
From: Jinyoung Choi <j-young.choi@samsung.com>
Date: Thu, 27 Jan 2022 12:00:25 +0900
Subject: [PATCH 4738/4878] FROMGIT: scsi: ufs: Add checking lifetime attribute
 for WriteBooster

Because WB performs writes in SLC mode, it is not possible to use
WriteBooster indefinitely. Vendors can set a lifetime limit in the device.
If the lifetime exceeds this limit, the device ican disable the WB feature.

The feature is defined in the "bWriteBoosterBufferLifeTimeEst (IDN = 1E)"
attribute.

With lifetime exceeding the limit value, the current driver continuously
performs the following query:

	- Write Flag: WB_ENABLE / DISABLE
	- Read attr: Available Buffer Size
	- Read attr: Current Buffer Size

This patch recognizes that WriteBooster is no longer supported by the
device, and prevents unnecessary queries.

Link: https://lore.kernel.org/r/1891546521.01643252701746.JavaMail.epsvc@epcpadp3
Reviewed-by: Asutosh Das <quic_asutoshd@quicinc.com>
Acked-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Jinyoung Choi <j-young.choi@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit f681d1078d456ef4aea8da1bf5ccbd4081b0fbed git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I9178b31aaeb75ef157aa8e12b1dd0f5a646f0579
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufs.h    |  6 +++++
 drivers/scsi/ufs/ufshcd.c | 52 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index b3c792fc7bad6..280c56db3b126 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -44,6 +44,12 @@
 /* WriteBooster buffer is available only for the logical unit from 0 to 7 */
 #define UFS_UPIU_MAX_WB_LUN_ID	8
 
+/*
+ * WriteBooster buffer lifetime has a limit setted by vendor.
+ * If it is over the limit, WriteBooster feature will be disabled.
+ */
+#define UFS_WB_EXCEED_LIFETIME		0x0B
+
 /* Well known logical unit id in LUN field of UPIU */
 enum {
 	UFS_UPIU_REPORT_LUNS_WLUN	= 0x81,
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0dbd7774dc823..b6247c1ce6077 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5825,6 +5825,47 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba,
 	return false;
 }
 
+static void ufshcd_wb_force_disable(struct ufs_hba *hba)
+{
+	if (!(hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL))
+		ufshcd_wb_toggle_flush(hba, false);
+
+	ufshcd_wb_toggle_flush_during_h8(hba, false);
+	ufshcd_wb_toggle(hba, false);
+	hba->caps &= ~UFSHCD_CAP_WB_EN;
+
+	dev_info(hba->dev, "%s: WB force disabled\n", __func__);
+}
+
+static bool ufshcd_is_wb_buf_lifetime_available(struct ufs_hba *hba)
+{
+	u32 lifetime;
+	int ret;
+	u8 index;
+
+	index = ufshcd_wb_get_query_index(hba);
+	ret = ufshcd_query_attr_retry(hba, UPIU_QUERY_OPCODE_READ_ATTR,
+				      QUERY_ATTR_IDN_WB_BUFF_LIFE_TIME_EST,
+				      index, 0, &lifetime);
+	if (ret) {
+		dev_err(hba->dev,
+			"%s: bWriteBoosterBufferLifeTimeEst read failed %d\n",
+			__func__, ret);
+		return false;
+	}
+
+	if (lifetime == UFS_WB_EXCEED_LIFETIME) {
+		dev_err(hba->dev, "%s: WB buf lifetime is exhausted 0x%02X\n",
+			__func__, lifetime);
+		return false;
+	}
+
+	dev_dbg(hba->dev, "%s: WB buf lifetime is 0x%02X\n",
+		__func__, lifetime);
+
+	return true;
+}
+
 static bool ufshcd_wb_need_flush(struct ufs_hba *hba)
 {
 	int ret;
@@ -5833,6 +5874,12 @@ static bool ufshcd_wb_need_flush(struct ufs_hba *hba)
 
 	if (!ufshcd_is_wb_allowed(hba))
 		return false;
+
+	if (!ufshcd_is_wb_buf_lifetime_available(hba)) {
+		ufshcd_wb_force_disable(hba);
+		return false;
+	}
+
 	/*
 	 * The ufs device needs the vcc to be ON to flush.
 	 * With user-space reduction enabled, it's enough to enable flush
@@ -7535,6 +7582,7 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 
 	if (!ufshcd_is_wb_allowed(hba))
 		return;
+
 	/*
 	 * Probe WB only for UFS-2.2 and UFS-3.1 (and later) devices or
 	 * UFS devices with quirk UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES
@@ -7586,6 +7634,10 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 		if (!d_lu_wb_buf_alloc)
 			goto wb_disabled;
 	}
+
+	if (!ufshcd_is_wb_buf_lifetime_available(hba))
+		goto wb_disabled;
+
 	return;
 
 wb_disabled:
-- 
GitLab


From e46eb26194d2d4cc14efbd79baf534274f24f2fc Mon Sep 17 00:00:00 2001
From: Keoseong Park <keosung.park@samsung.com>
Date: Tue, 15 Feb 2022 20:40:02 +0900
Subject: [PATCH 4739/4878] FROMGIT: scsi: ufs: core: Remove wlun_dev_to_hba()

Commit edc0596cc04b ("scsi: ufs: core: Stop clearing UNIT ATTENTIONS")
removed all callers of wlun_dev_to_hba(). Hence also remove the macro
itself.

Link: https://lore.kernel.org/r/1891546521.01644927481711.JavaMail.epsvc@epcpadp4
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Keoseong Park <keosung.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from 482dcaa1c91adea338f33ed0ea34f6c01c9c8172 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I1eee9827255305f5567ee21c65dbfca897e9daa5
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b6247c1ce6077..04a9f038e9065 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -86,8 +86,6 @@
 /* Polling time to wait for fDeviceInit */
 #define FDEVICEINIT_COMPL_TIMEOUT 1500 /* millisecs */
 
-#define wlun_dev_to_hba(dv) shost_priv(to_scsi_device(dv)->host)
-
 #define ufshcd_toggle_vreg(_dev, _vreg, _on)				\
 	({                                                              \
 		int _ret;                                               \
-- 
GitLab


From 0cd3abcaa4dd31532c50e31c439407aace219997 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 28 Feb 2022 13:36:51 +0200
Subject: [PATCH 4740/4878] FROMGIT: scsi: core: sd: Add silence_suspend flag
 to suppress some PM messages

Kernel messages produced during runtime PM can cause a never-ending cycle
because user space utilities (e.g. journald or rsyslog) write the messages
back to storage, causing runtime resume, more messages, and so on.

Messages that tell of things that are expected to happen are arguably
unnecessary, so add a flag to suppress them. This flag is used by the UFS
driver.

Link: https://lore.kernel.org/r/20220228113652.970857-2-adrian.hunter@intel.com
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit af4edb1d50c6d1044cb34bc43621411b7ba2cffe git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Change-Id: I8834c9d71618fd04635804779a41117629a75166
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/scsi_error.c  | 9 +++++++--
 drivers/scsi/sd.c          | 6 ++++--
 include/scsi/scsi_device.h | 1 +
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index f11f51e2465f5..cfa588e915619 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -448,8 +448,13 @@ static void scsi_report_sense(struct scsi_device *sdev,
 
 		if (sshdr->asc == 0x29) {
 			evt_type = SDEV_EVT_POWER_ON_RESET_OCCURRED;
-			sdev_printk(KERN_WARNING, sdev,
-				    "Power-on or device reset occurred\n");
+			/*
+			 * Do not print message if it is an expected side-effect
+			 * of runtime PM.
+			 */
+			if (!sdev->silence_suspend)
+				sdev_printk(KERN_WARNING, sdev,
+					    "Power-on or device reset occurred\n");
 		}
 
 		if (sshdr->asc == 0x2a && sshdr->ascq == 0x01) {
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 9de0bd97c556e..edb1e26c734b1 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3663,7 +3663,8 @@ static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)
 		return 0;
 
 	if (sdkp->WCE && sdkp->media_present) {
-		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
+		if (!sdkp->device->silence_suspend)
+			sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
 		ret = sd_sync_cache(sdkp, &sshdr);
 
 		if (ret) {
@@ -3685,7 +3686,8 @@ static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)
 	}
 
 	if (sdkp->device->manage_start_stop) {
-		sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
+		if (!sdkp->device->silence_suspend)
+			sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
 		/* an error is not worth aborting a system sleep */
 		ret = sd_start_stop_device(sdkp, 0);
 		if (ignore_stop_errors)
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 0dd9dbc2ae21c..d54a6cb496dac 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -206,6 +206,7 @@ struct scsi_device {
 	unsigned rpm_autosuspend:1;	/* Enable runtime autosuspend at device
 					 * creation time */
 	unsigned ignore_media_change:1; /* Ignore MEDIA CHANGE on resume */
+	unsigned silence_suspend:1;	/* Do not print runtime PM related messages */
 
 	bool offline_already;		/* Device offline message logged */
 
-- 
GitLab


From c0a4aeb7aa35c75e20f97a95e21f1d1535109e20 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 28 Feb 2022 13:36:52 +0200
Subject: [PATCH 4741/4878] FROMGIT: scsi: ufs: Fix runtime PM messages
 never-ending cycle

Kernel messages produced during runtime PM can cause a never-ending cycle
because user space utilities (e.g. journald or rsyslog) write the messages
back to storage, causing runtime resume, more messages, and so on.

Messages that tell of things that are expected to happen, are arguably
unnecessary, so suppress them.

UFS driver messages are changes to from dev_err() to dev_dbg() which means
they will not display unless activated by dynamic debug of building with
-DDEBUG.

sdev->silence_suspend is set to skip messages from sd_suspend_common()
"Synchronizing SCSI cache", "Stopping disk" and scsi_report_sense()
"Power-on or device reset occurred" message (Note, that message appears
when the LUN is accessed after runtime PM, not during runtime PM)

 Example messages from Ubuntu 21.10:

 $ dmesg | tail
 [ 1620.380071] ufshcd 0000:00:12.5: ufshcd_print_pwr_info:[RX, TX]: gear=[1, 1], lane[1, 1], pwr[SLOWAUTO_MODE, SLOWAUTO_MODE], rate = 0
 [ 1620.408825] ufshcd 0000:00:12.5: ufshcd_print_pwr_info:[RX, TX]: gear=[4, 4], lane[2, 2], pwr[FAST MODE, FAST MODE], rate = 2
 [ 1620.409020] ufshcd 0000:00:12.5: ufshcd_find_max_sup_active_icc_level: Regulator capability was not set, actvIccLevel=0
 [ 1620.409524] sd 0:0:0:0: Power-on or device reset occurred
 [ 1622.938794] sd 0:0:0:0: [sda] Synchronizing SCSI cache
 [ 1622.939184] ufs_device_wlun 0:0:0:49488: Power-on or device reset occurred
 [ 1625.183175] ufshcd 0000:00:12.5: ufshcd_print_pwr_info:[RX, TX]: gear=[1, 1], lane[1, 1], pwr[SLOWAUTO_MODE, SLOWAUTO_MODE], rate = 0
 [ 1625.208041] ufshcd 0000:00:12.5: ufshcd_print_pwr_info:[RX, TX]: gear=[4, 4], lane[2, 2], pwr[FAST MODE, FAST MODE], rate = 2
 [ 1625.208311] ufshcd 0000:00:12.5: ufshcd_find_max_sup_active_icc_level: Regulator capability was not set, actvIccLevel=0
 [ 1625.209035] sd 0:0:0:0: Power-on or device reset occurred

Note for stable: depends on patch "scsi: core: sd: Add silence_suspend flag
to suppress some PM messages".

Link: https://lore.kernel.org/r/20220228113652.970857-3-adrian.hunter@intel.com
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Bug: 204438323
(cherry picked from commit 71bb9ab6e3511b7bb98678a19eb8cf1ccbf3ca2f git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Change-Id: I2a50283162aa1dc100e1269533ac61056172bd1d
---
 drivers/scsi/ufs/ufshcd.c | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 04a9f038e9065..0426916994c56 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -601,7 +601,12 @@ static void ufshcd_print_pwr_info(struct ufs_hba *hba)
 		"INVALID MODE",
 	};
 
-	dev_err(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n",
+	/*
+	 * Using dev_dbg to avoid messages during runtime PM to avoid
+	 * never-ending cycles of messages written back to storage by user space
+	 * causing runtime resume, causing more messages and so on.
+	 */
+	dev_dbg(hba->dev, "%s:[RX, TX]: gear=[%d, %d], lane[%d, %d], pwr[%s, %s], rate = %d\n",
 		 __func__,
 		 hba->pwr_info.gear_rx, hba->pwr_info.gear_tx,
 		 hba->pwr_info.lane_rx, hba->pwr_info.lane_tx,
@@ -5063,6 +5068,12 @@ static int ufshcd_slave_configure(struct scsi_device *sdev)
 		pm_runtime_get_noresume(&sdev->sdev_gendev);
 	else if (ufshcd_is_rpm_autosuspend_allowed(hba))
 		sdev->rpm_autosuspend = 1;
+	/*
+	 * Do not print messages during runtime PM to avoid never-ending cycles
+	 * of messages written back to storage by user space causing runtime
+	 * resume, causing more messages and so on.
+	 */
+	sdev->silence_suspend = 1;
 
 	ufshcd_crypto_setup_rq_keyslot_manager(hba, q);
 
@@ -7433,7 +7444,13 @@ static u32 ufshcd_find_max_sup_active_icc_level(struct ufs_hba *hba,
 
 	if (!hba->vreg_info.vcc || !hba->vreg_info.vccq ||
 						!hba->vreg_info.vccq2) {
-		dev_err(hba->dev,
+		/*
+		 * Using dev_dbg to avoid messages during runtime PM to avoid
+		 * never-ending cycles of messages written back to storage by
+		 * user space causing runtime resume, causing more messages and
+		 * so on.
+		 */
+		dev_dbg(hba->dev,
 			"%s: Regulator capability was not set, actvIccLevel=%d",
 							__func__, icc_level);
 		goto out;
-- 
GitLab


From 00ed95fe93bce9b322955ec4f8a760047ba0b77d Mon Sep 17 00:00:00 2001
From: Peter Wang <peter.wang@mediatek.com>
Date: Mon, 7 Mar 2022 19:17:52 +0800
Subject: [PATCH 4742/4878] FROMGIT: scsi: ufs: core: scsi_get_lba() error fix

When ufs initializes without scmd->device->sector_size set, scsi_get_lba()
will get a wrong shift number and trigger an ubsan error.  The shift
exponent 4294967286 is too large for the 64-bit type 'sector_t' (aka
'unsigned long long').

Call scsi_get_lba() only when opcode is READ_10/WRITE_10/UNMAP.

Link: https://lore.kernel.org/r/20220307111752.10465-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 2bd3b6b75946db2ace06e145d53988e10ed7e99a git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Bug: 204438323
Change-Id: I3457fcc88d7c4164c55010e440d9f274c169553e
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0426916994c56..568de29c6f157 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -383,7 +383,7 @@ static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
 static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 				     enum ufs_trace_str_t str_t)
 {
-	u64 lba;
+	u64 lba = 0;
 	u8 opcode = 0, group_id = 0;
 	u32 intr, doorbell;
 	struct ufshcd_lrb *lrbp = &hba->lrb[tag];
@@ -400,7 +400,6 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 		return;
 
 	opcode = cmd->cmnd[0];
-	lba = scsi_get_lba(cmd);
 
 	if (opcode == READ_10 || opcode == WRITE_10) {
 		/*
@@ -408,6 +407,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 		 */
 		transfer_len =
 		       be32_to_cpu(lrbp->ucd_req_ptr->sc.exp_data_transfer_len);
+		lba = scsi_get_lba(cmd);
 		if (opcode == WRITE_10)
 			group_id = lrbp->cmd->cmnd[6];
 	} else if (opcode == UNMAP) {
@@ -415,6 +415,7 @@ static void ufshcd_add_command_trace(struct ufs_hba *hba, unsigned int tag,
 		 * The number of Bytes to be unmapped beginning with the lba.
 		 */
 		transfer_len = blk_rq_bytes(rq);
+		lba = scsi_get_lba(cmd);
 	}
 
 	intr = ufshcd_readl(hba, REG_INTERRUPT_STATUS);
-- 
GitLab


From aca52cabdbc003e5f98bd43cf2b29744904f670e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Tue, 29 Mar 2022 15:55:44 -0700
Subject: [PATCH 4743/4878] ANDROID: scsi: ufs: Reduce the clock scaling
 latency

Wait at most 20 ms before rechecking the doorbells instead of waiting
for a potentially long time between doorbell checks.

Bug: 227177294
Change-Id: I8a4dd0e93ca02435264961851a095a9c83c68240
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 568de29c6f157..d70c3a0982a12 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1144,7 +1144,7 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
 		}
 
 		spin_unlock_irqrestore(hba->host->host_lock, flags);
-		schedule();
+		io_schedule_timeout(msecs_to_jiffies(20));
 		if (ktime_to_us(ktime_sub(ktime_get(), start)) >
 		    wait_timeout_us) {
 			timeout = true;
-- 
GitLab


From 69014b2b3611df9a8493e82c2e7eca2781233ace Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Tue, 29 Mar 2022 13:45:23 -0700
Subject: [PATCH 4744/4878] ANDROID: scsi: ufs: Move a clock scaling check

Move a check related to clock scaling into ufshcd_devfreq_scale(). This
patch prepares for adding a second ufshcd_clock_scaling_prepare()
caller.

Bug: 227177294
Change-Id: I928d4cbe64823960a6112ba7f98c18da6244a77c
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d70c3a0982a12..8fdc12358863e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1226,8 +1226,7 @@ static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba)
 	ufshcd_scsi_block_requests(hba);
 	down_write(&hba->clk_scaling_lock);
 
-	if (!hba->clk_scaling.is_allowed ||
-	    ufshcd_wait_for_doorbell_clr(hba, DOORBELL_CLR_TOUT_US)) {
+	if (ufshcd_wait_for_doorbell_clr(hba, DOORBELL_CLR_TOUT_US)) {
 		ret = -EBUSY;
 		up_write(&hba->clk_scaling_lock);
 		ufshcd_scsi_unblock_requests(hba);
@@ -1265,10 +1264,18 @@ static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
 	int ret = 0;
 	bool is_writelock = true;
 
+	if (!hba->clk_scaling.is_allowed)
+		return -EBUSY;
+
 	ret = ufshcd_clock_scaling_prepare(hba);
 	if (ret)
 		return ret;
 
+	if (!hba->clk_scaling.is_allowed) {
+		ret = -EBUSY;
+		goto out_unprepare;
+	}
+
 	/* scale down the gear before scaling down clocks */
 	if (!scale_up) {
 		ret = ufshcd_scale_gear(hba, false);
-- 
GitLab


From 64293a57f15edb22ddebf7a76773cf176d78679c Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Tue, 29 Mar 2022 15:37:26 -0700
Subject: [PATCH 4745/4878] ANDROID: scsi: ufs: Pass the clock scaling timeout
 as an argument

Prepare for adding an additional ufshcd_clock_scaling_prepare() call
with a different timeout.

Bug: 227177294
Change-Id: I67a569b074c292a3c37f20a1b1e36f95b682c5e8
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8fdc12358863e..0d44d1b47bb4b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1111,6 +1111,12 @@ static u32 ufshcd_pending_cmds(struct ufs_hba *hba)
 	return pending;
 }
 
+/*
+ * Wait until all pending SCSI commands and TMFs have finished or the timeout
+ * has expired.
+ *
+ * Return: 0 upon success; -EBUSY upon timeout.
+ */
 static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
 					u64 wait_timeout_us)
 {
@@ -1215,9 +1221,14 @@ static int ufshcd_scale_gear(struct ufs_hba *hba, bool scale_up)
 	return ret;
 }
 
-static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba)
+/*
+ * Wait until all pending SCSI commands and TMFs have finished or the timeout
+ * has expired.
+ *
+ * Return: 0 upon success; -EBUSY upon timeout.
+ */
+static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba, u64 timeout_us)
 {
-	#define DOORBELL_CLR_TOUT_US		(1000 * 1000) /* 1 sec */
 	int ret = 0;
 	/*
 	 * make sure that there are no outstanding requests when
@@ -1226,7 +1237,7 @@ static int ufshcd_clock_scaling_prepare(struct ufs_hba *hba)
 	ufshcd_scsi_block_requests(hba);
 	down_write(&hba->clk_scaling_lock);
 
-	if (ufshcd_wait_for_doorbell_clr(hba, DOORBELL_CLR_TOUT_US)) {
+	if (ufshcd_wait_for_doorbell_clr(hba, timeout_us)) {
 		ret = -EBUSY;
 		up_write(&hba->clk_scaling_lock);
 		ufshcd_scsi_unblock_requests(hba);
@@ -1267,7 +1278,7 @@ static int ufshcd_devfreq_scale(struct ufs_hba *hba, bool scale_up)
 	if (!hba->clk_scaling.is_allowed)
 		return -EBUSY;
 
-	ret = ufshcd_clock_scaling_prepare(hba);
+	ret = ufshcd_clock_scaling_prepare(hba, 1 * USEC_PER_SEC);
 	if (ret)
 		return ret;
 
-- 
GitLab


From fae5207ecc3fb2e06765db02590561e022587a3c Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@google.com>
Date: Tue, 29 Mar 2022 13:47:10 -0700
Subject: [PATCH 4746/4878] ANDROID: scsi: ufs: Add suspend/resume SCSI command
 processing support

This functionality is needed by UFS drivers to e.g. suspend SCSI command
processing while reprogramming encryption keys if the hardware does not
support concurrent I/O and key reprogramming.

Bug: 227177294
Change-Id: I10f11e67da81fae7063674838760903d2c178baf
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 drivers/scsi/ufs/ufshcd.c | 20 ++++++++++++++++++++
 drivers/scsi/ufs/ufshcd.h |  3 +++
 2 files changed, 23 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 0d44d1b47bb4b..9b0f7e76c0f3b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1700,6 +1700,26 @@ unblock_reqs:
 	ufshcd_scsi_unblock_requests(hba);
 }
 
+/*
+ * Block processing of new SCSI commands and wait until pending SCSI
+ * commands and TMFs have finished. ufshcd_exec_dev_cmd() and
+ * ufshcd_issue_devman_upiu_cmd() are not affected by this function.
+ *
+ * Return: 0 upon success; -EBUSY upon timeout.
+ */
+int ufshcd_freeze_scsi_devs(struct ufs_hba *hba, u64 timeout_us)
+{
+	return ufshcd_clock_scaling_prepare(hba, timeout_us);
+}
+EXPORT_SYMBOL_GPL(ufshcd_freeze_scsi_devs);
+
+/* Resume processing of SCSI commands. */
+void ufshcd_unfreeze_scsi_devs(struct ufs_hba *hba)
+{
+	ufshcd_clock_scaling_unprepare(hba, true);
+}
+EXPORT_SYMBOL_GPL(ufshcd_unfreeze_scsi_devs);
+
 /**
  * ufshcd_hold - Enable clocks that were gated earlier due to ufshcd_release.
  * Also, exit from hibern8 mode and set the link as active.
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index b8fee040820ac..4fc5deaa99dd6 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1241,6 +1241,9 @@ int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index,
 int ufshcd_hold(struct ufs_hba *hba, bool async);
 void ufshcd_release(struct ufs_hba *hba);
 
+int ufshcd_freeze_scsi_devs(struct ufs_hba *hba, u64 timeout_us);
+void ufshcd_unfreeze_scsi_devs(struct ufs_hba *hba);
+
 void ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id,
 				  int *desc_length);
 
-- 
GitLab


From af4eb0e377b09fe7e2f342bcca0e97fa43eaed41 Mon Sep 17 00:00:00 2001
From: Bing Han <bing.han@transsion.com>
Date: Fri, 15 Apr 2022 08:09:32 +0000
Subject: [PATCH 4747/4878] ANDROID: add vendor fields to swap_info_struct to
 record swap stats

struct swap_info_struct :: ANDROID_VENDOR_DATA(1)
	It is pointer to a struct to record the following message:
	1) total swapin pages;
	2) total swapout pages;
	3) total number of cold pages swapin;
	4) total number of swapout pages, specified by userspace;
	5) total number of swapout pages, specified by kernel;
	6) the maxmium number of swapout pages;
	7) the maxmium number of swapout pages allowed by kernel;
	8) the maxmium number of swapout pages allowed by framework;

Bug: 225795494
Change-Id: I779145a83d87e339db86ec81c7f962be99946afb
Signed-off-by: Bing Han <bing.han@transsion.com>
---
 include/linux/swap.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 186b63d7ec140..dfdf026dc54d1 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -285,6 +285,7 @@ struct swap_info_struct {
 					 */
 	struct work_struct discard_work; /* discard worker */
 	struct swap_cluster_list discard_clusters; /* discard clusters list */
+	ANDROID_VENDOR_DATA(1);
 	struct plist_node avail_lists[]; /*
 					   * entries in swap_avail_heads, one
 					   * entry per node.
-- 
GitLab


From 1b14ae01b09dfde89da470cac8415cefaca824fb Mon Sep 17 00:00:00 2001
From: Bing Han <bing.han@transsion.com>
Date: Fri, 15 Apr 2022 08:16:43 +0000
Subject: [PATCH 4748/4878] ANDROID: add vendor fields to lruvec to record
 refault stats
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

struct lruvec :: ANDROID_VENDOR_DATA(1)
It is pointer to a struct to record the following message:
1）the account of workingset_restore pages of cached anonymous and
   file pages
This is used to adjust the strategy and amount of reclaiming data.

Bug: 225795494
Change-Id: I34e57ee23b6c97ac91effa5b72513d238335a996
Signed-off-by: Bing Han <bing.han@transsion.com>
---
 include/linux/mmzone.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index efb1e07457611..60ddb2e4794a3 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -501,6 +501,7 @@ struct lruvec {
 #ifdef CONFIG_MEMCG
 	struct pglist_data *pgdat;
 #endif
+	ANDROID_VENDOR_DATA(1);
 };
 
 /* Isolate unmapped pages */
-- 
GitLab


From a034320a6855af99fe1ec1dfe6cafa4c2a15ecce Mon Sep 17 00:00:00 2001
From: Bing Han <bing.han@transsion.com>
Date: Fri, 15 Apr 2022 08:21:49 +0000
Subject: [PATCH 4749/4878] ANDROID: add vendor fields to swap_slots_cache to
 support multiple swap devices

struct swap_slots_cache  :: ANDROID_VENDOR_DATA(1)
1) Multiple swap devices can be supported;
2) There are different kinds of data;
3) During data reclamation, different types of data are exchanged
   to different swap devices;
4) Each swap device has corresponding arrays of slots and slots_ret;
5) Each swap device has corresponding indexes of nr, cur and n_ret;
6) This field is a pointer, it points to a struct which contains
   all the other arrays and indexes;

Bug: 225795494
Change-Id: Icf116135926be98449a2d96fc458e58e5ad3b7e9
Signed-off-by: Bing Han <bing.han@transsion.com>
---
 include/linux/swap_slots.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/swap_slots.h b/include/linux/swap_slots.h
index 347f1a3041905..c4dc91ebbaa87 100644
--- a/include/linux/swap_slots.h
+++ b/include/linux/swap_slots.h
@@ -19,6 +19,7 @@ struct swap_slots_cache {
 	spinlock_t	free_lock;  /* protects slots_ret, n_ret */
 	swp_entry_t	*slots_ret;
 	int		n_ret;
+	ANDROID_VENDOR_DATA(1);
 };
 
 void disable_swap_slots_cache_lock(void);
-- 
GitLab


From 6acb2614440138c24a7ffaa7dd6187a8a3073f77 Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Mon, 18 Apr 2022 10:56:00 -0700
Subject: [PATCH 4750/4878] ANDROID: GKI: 4/15/2022 KMI freeze

Set KMI_GENERATION=4 for 4/15 KMI freeze

Leaf changes summary: 2734 artifacts changed
Changed leaf types summary: 8 leaf types changed
Removed/Changed/Added functions summary: 0 Removed, 2677 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 49 Changed, 0 Added variable

2677 functions with some sub-type change:

  [C] 'function void* PDE_DATA(const inode*)' at generic.c:799:1 has some sub-type changes:
    CRC (modversions) changed from 0x830fd868 to 0xb70c2d59

  [C] 'function void __ClearPageMovable(page*)' at compaction.c:138:1 has some sub-type changes:
    CRC (modversions) changed from 0x274b4312 to 0x1e91976d

  [C] 'function void __SetPageMovable(page*, address_space*)' at compaction.c:130:1 has some sub-type changes:
    CRC (modversions) changed from 0xaf251a50 to 0xb1221a47

  ... 2674 omitted; 2677 symbols have only CRC changes

49 Changed variables:

  [C] 'pglist_data contig_page_data' was changed at memblock.c:96:1:
    size of symbol changed from 5696 to 6976
    CRC (modversions) changed from 0xa8156534 to 0x7007215
    type of variable changed:
      type size changed from 45568 to 55808 (in bits)
      1 data member insertion:
        'lru_gen_mm_walk mm_walk', at offset 51520 (in bits) at mmzone.h:1039:1
      there are data member changes:
        type 'struct lruvec' of 'pglist_data::__lruvec' changed:
          type size changed from 1088 to 9664 (in bits)
          3 data member insertions:
            'lru_gen_struct lrugen', at offset 1024 (in bits) at mmzone.h:497:1
            'lru_gen_mm_state mm_state', at offset 8576 (in bits) at mmzone.h:499:1
            'u64 android_vendor_data1', at offset 9600 (in bits) at mmzone.h:504:1
          there are data member changes:
            'pglist_data* pgdat' offset changed (by +8512 bits)
          2977 impacted interfaces
        'unsigned long int flags' offset changed (by +8576 bits)
        3 ('zone_padding _pad2_' .. 'atomic_long_t vm_stat[38]') offsets changed (by +10240 bits)
      2977 impacted interfaces

  [C] 'task_struct init_task' was changed at init_task.c:64:1:
    CRC (modversions) changed from 0x124472e1 to 0xf5fdc492
    type of variable changed:
      type size hasn't changed
      1 data member insertion:
        'unsigned int in_lru_fault', at offset 11332 (in bits) at sched.h:840:1
      there are data member changes:
        4 ('unsigned int no_cgroup_migration' .. 'unsigned int in_memstall') offsets changed (by +1 bits)
      2977 impacted interfaces

  [C] 'bus_type amba_bustype' was changed at bus.c:215:1:
    CRC (modversions) changed from 0x55933f58 to 0xefd95b38

  [C] 'const clk_ops clk_fixed_factor_ops' was changed at clk-fixed-factor.c:60:1:
    CRC (modversions) changed from 0x38f07e1d to 0xb94d81d6

  [C] 'const clk_ops clk_fixed_rate_ops' was changed at clk-fixed-rate.c:46:1:
    CRC (modversions) changed from 0x47fbebbe to 0x5299a868

  ... 44 omitted; 47 symbols have only CRC changes

'struct lruvec at mmzone.h:280:1' changed:
  details were reported earlier

'struct mem_cgroup at memcontrol.h:211:1' changed:
  type size hasn't changed
  1 data member insertion:
    'lru_gen_mm_list mm_list', at offset 23168 (in bits) at memcontrol.h:337:1
  there are data member changes:
    2 ('u64 android_oem_data1' .. 'mem_cgroup_per_node* nodeinfo[]') offsets changed (by +192 bits)
  2977 impacted interfaces

'struct mem_cgroup_per_node at memcontrol.h:107:1' changed:
  type size changed from 5184 to 13760 (in bits)
  there are data member changes:
    type 'struct lruvec' of 'mem_cgroup_per_node::lruvec' changed, as reported earlier
    10 ('lruvec_stat* lruvec_stat_local' .. 'mem_cgroup* memcg') offsets changed (by +8576 bits)
  2977 impacted interfaces

'struct mm_struct at mm_types.h:419:1' changed:
  type size changed from 7680 to 7936 (in bits)
  there are data member changes:
    anonymous data member at offset 0 (in bits) changed from:
      struct {vm_area_struct* mmap; rb_root mm_rb; u64 vmacache_seqnum; rwlock_t mm_rb_lock; unsigned long int (file*, unsigned long int, unsigned long int, unsigned long int, unsigned long int)* get_unmapped_area; unsigned long int mmap_base; unsigned long int mmap_legacy_base; unsigned long int task_size; unsigned long int highest_vm_end; pgd_t* pgd; atomic_t membarrier_state; atomic_t mm_users; atomic_t mm_count; atomic_t has_pinned; atomic_long_t pgtables_bytes; int map_count; spinlock_t page_table_lock; rw_semaphore mmap_lock; list_head mmlist; unsigned long int hiwater_rss; unsigned long int hiwater_vm; unsigned long int total_vm; unsigned long int locked_vm; atomic64_t pinned_vm; unsigned long int data_vm; unsigned long int exec_vm; unsigned long int stack_vm; unsigned long int def_flags; seqcount_t write_protect_seq; spinlock_t arg_lock; unsigned long int start_code; unsigned long int end_code; unsigned long int start_data; unsigned long int end_data; unsigned long int start_brk; unsigned long int brk; unsigned long int start_stack; unsigned long int arg_start; unsigned long int arg_end; unsigned long int env_start; unsigned long int env_end; unsigned long int saved_auxv[46]; mm_rss_stat rss_stat; linux_binfmt* binfmt; mm_context_t context; unsigned long int flags; core_state* core_state; spinlock_t ioctx_lock; kioctx_table* ioctx_table; task_struct* owner; user_namespace* user_ns; file* exe_file; mmu_notifier_subscriptions* notifier_subscriptions; percpu_rw_semaphore* mmu_notifier_lock; atomic_t tlb_flush_pending; uprobes_state uprobes_state; work_struct async_put_work; u32 pasid; u64 android_kabi_reserved1;}
    to:
      struct {vm_area_struct* mmap; rb_root mm_rb; u64 vmacache_seqnum; rwlock_t mm_rb_lock; unsigned long int (file*, unsigned long int, unsigned long int, unsigned long int, unsigned long int)* get_unmapped_area; unsigned long int mmap_base; unsigned long int mmap_legacy_base; unsigned long int task_size; unsigned long int highest_vm_end; pgd_t* pgd; atomic_t membarrier_state; atomic_t mm_users; atomic_t mm_count; atomic_t has_pinned; atomic_long_t pgtables_bytes; int map_count; spinlock_t page_table_lock; rw_semaphore mmap_lock; list_head mmlist; unsigned long int hiwater_rss; unsigned long int hiwater_vm; unsigned long int total_vm; unsigned long int locked_vm; atomic64_t pinned_vm; unsigned long int data_vm; unsigned long int exec_vm; unsigned long int stack_vm; unsigned long int def_flags; seqcount_t write_protect_seq; spinlock_t arg_lock; unsigned long int start_code; unsigned long int end_code; unsigned long int start_data; unsigned long int end_data; unsigned long int start_brk; unsigned long int brk; unsigned long int start_stack; unsigned long int arg_start; unsigned long int arg_end; unsigned long int env_start; unsigned long int env_end; unsigned long int saved_auxv[46]; mm_rss_stat rss_stat; linux_binfmt* binfmt; mm_context_t context; unsigned long int flags; core_state* core_state; spinlock_t ioctx_lock; kioctx_table* ioctx_table; task_struct* owner; user_namespace* user_ns; file* exe_file; mmu_notifier_subscriptions* notifier_subscriptions; percpu_rw_semaphore* mmu_notifier_lock; atomic_t tlb_flush_pending; uprobes_state uprobes_state; work_struct async_put_work; u32 pasid; struct {list_head list; mem_cgroup* memcg; nodemask_t nodes;} lru_gen; u64 android_kabi_reserved1;}
    and size changed from 7680 to 7936 (in bits) (by +256 bits)
    'unsigned long int cpu_bitmap[]' offset changed (by +256 bits)
  2977 impacted interfaces

'struct pglist_data at mmzone.h:729:1' changed:
  details were reported earlier

'struct reclaim_state at swap.h:131:1' changed:
  type size changed from 64 to 128 (in bits)
  1 data member insertion:
    'lru_gen_mm_walk* mm_walk', at offset 64 (in bits) at swap.h:135:1
  2977 impacted interfaces

'struct scsi_device at scsi_device.h:102:1' changed:
  type size hasn't changed
  1 data member insertion:
    'unsigned int silence_suspend', at offset 2448 (in bits) at scsi_device.h:209:1
  there are data member changes:
    'bool offline_already' offset changed (by +8 bits)
  45 impacted interfaces

'struct task_struct at sched.h:660:1' changed:
  details were reported earlier

Bug: 229630433
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: Iacd70a1553401ead91351db0b5b8ec6dfee6e6ec
---
 android/abi_gki_aarch64.xml | 8026 ++++++++++++++++++-----------------
 build.config.common         |    2 +-
 2 files changed, 4101 insertions(+), 3927 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index cb5f8787171da..1364bcb1d33ba 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -1,17 +1,17 @@
 <abi-corpus-group version='2.1' architecture='elf-arm-aarch64'>
   <abi-corpus version='2.1' path='vmlinux' architecture='elf-arm-aarch64'>
     <elf-function-symbols>
-      <elf-symbol name='PDE_DATA' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x830fd868'/>
-      <elf-symbol name='__ClearPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x274b4312'/>
-      <elf-symbol name='__SetPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf251a50'/>
+      <elf-symbol name='PDE_DATA' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb70c2d59'/>
+      <elf-symbol name='__ClearPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e91976d'/>
+      <elf-symbol name='__SetPageMovable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1221a47'/>
       <elf-symbol name='___ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d24c881'/>
       <elf-symbol name='___update_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8b1b72f'/>
       <elf-symbol name='___update_load_sum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd667f721'/>
-      <elf-symbol name='__alloc_disk_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa46d7f6'/>
-      <elf-symbol name='__alloc_pages_nodemask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818e45f3'/>
+      <elf-symbol name='__alloc_disk_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0366cdb'/>
+      <elf-symbol name='__alloc_pages_nodemask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b3c3f73'/>
       <elf-symbol name='__alloc_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x949f7342'/>
       <elf-symbol name='__alloc_percpu_gfp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf793668'/>
-      <elf-symbol name='__alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c77e5af'/>
+      <elf-symbol name='__alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a790250'/>
       <elf-symbol name='__arch_clear_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55686530'/>
       <elf-symbol name='__arch_copy_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf507de1'/>
       <elf-symbol name='__arch_copy_in_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9957204'/>
@@ -23,54 +23,54 @@
       <elf-symbol name='__bitmap_or' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa084749a'/>
       <elf-symbol name='__bitmap_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x615911d7'/>
       <elf-symbol name='__bitmap_weight' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c4d61f'/>
-      <elf-symbol name='__blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d3c9c0c'/>
-      <elf-symbol name='__blk_rq_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cda2b50'/>
-      <elf-symbol name='__cfg80211_alloc_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f07fe5f'/>
-      <elf-symbol name='__cfg80211_alloc_reply_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d096973'/>
-      <elf-symbol name='__cfg80211_send_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d7053ae'/>
+      <elf-symbol name='__blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fa4604e'/>
+      <elf-symbol name='__blk_rq_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x585d85b4'/>
+      <elf-symbol name='__cfg80211_alloc_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d2d07ef'/>
+      <elf-symbol name='__cfg80211_alloc_reply_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe80d788a'/>
+      <elf-symbol name='__cfg80211_send_event_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaea241a7'/>
       <elf-symbol name='__cfi_slowpath' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cd90edd'/>
       <elf-symbol name='__check_object_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88db9f48'/>
-      <elf-symbol name='__class_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7131f2a'/>
-      <elf-symbol name='__class_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe3d4908'/>
-      <elf-symbol name='__clk_determine_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x340e2aa3'/>
-      <elf-symbol name='__clk_get_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b894cf7'/>
+      <elf-symbol name='__class_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e6dcac3'/>
+      <elf-symbol name='__class_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6731b83'/>
+      <elf-symbol name='__clk_determine_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a7b009f'/>
+      <elf-symbol name='__clk_get_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x882b2393'/>
       <elf-symbol name='__clk_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc569d8ce'/>
-      <elf-symbol name='__clk_hw_register_divider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a84dddd'/>
-      <elf-symbol name='__clk_hw_register_mux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56b21c87'/>
+      <elf-symbol name='__clk_hw_register_divider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad6e876f'/>
+      <elf-symbol name='__clk_hw_register_mux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36f8f438'/>
       <elf-symbol name='__clk_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6a4a872'/>
-      <elf-symbol name='__clk_mux_determine_rate_closest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7aec971'/>
-      <elf-symbol name='__clocksource_register_scale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91676354'/>
+      <elf-symbol name='__clk_mux_determine_rate_closest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4ed8c2'/>
+      <elf-symbol name='__clocksource_register_scale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87e72a5c'/>
       <elf-symbol name='__const_udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeae3dfd6'/>
-      <elf-symbol name='__cpufreq_driver_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f1a6e56'/>
+      <elf-symbol name='__cpufreq_driver_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebb0bd5c'/>
       <elf-symbol name='__cpuhp_remove_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63547718'/>
       <elf-symbol name='__cpuhp_setup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57ad17e9'/>
       <elf-symbol name='__cpuhp_setup_state_cpuslocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46f24c3c'/>
       <elf-symbol name='__cpuhp_state_add_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe21d8f58'/>
       <elf-symbol name='__cpuhp_state_remove_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6753e8cf'/>
       <elf-symbol name='__crypto_memneq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a44f8cb'/>
-      <elf-symbol name='__dev_get_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb0c5fb2'/>
-      <elf-symbol name='__dev_kfree_skb_any' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6fe088d'/>
-      <elf-symbol name='__devm_drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda6d198'/>
-      <elf-symbol name='__devm_iio_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba7f933'/>
-      <elf-symbol name='__devm_of_phy_provider_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0c7e007'/>
-      <elf-symbol name='__devm_regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383e374c'/>
-      <elf-symbol name='__devm_regmap_init_i2c' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44202e87'/>
-      <elf-symbol name='__devm_regmap_init_mmio_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf62ae1e9'/>
-      <elf-symbol name='__devm_regmap_init_spi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a7f6306'/>
-      <elf-symbol name='__devm_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x704f5977'/>
-      <elf-symbol name='__devm_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcc8ce77'/>
-      <elf-symbol name='__devm_spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfe5c804'/>
-      <elf-symbol name='__dma_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27da1af0'/>
-      <elf-symbol name='__do_once_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced1ff13'/>
+      <elf-symbol name='__dev_get_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4fd4996'/>
+      <elf-symbol name='__dev_kfree_skb_any' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x214f8acd'/>
+      <elf-symbol name='__devm_drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a0bc38c'/>
+      <elf-symbol name='__devm_iio_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa456fb2c'/>
+      <elf-symbol name='__devm_of_phy_provider_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb603362'/>
+      <elf-symbol name='__devm_regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1bad9c8'/>
+      <elf-symbol name='__devm_regmap_init_i2c' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41d2315a'/>
+      <elf-symbol name='__devm_regmap_init_mmio_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11b3a89e'/>
+      <elf-symbol name='__devm_regmap_init_spi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d90fe8'/>
+      <elf-symbol name='__devm_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69568ca4'/>
+      <elf-symbol name='__devm_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d90fdc4'/>
+      <elf-symbol name='__devm_spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce3055a9'/>
+      <elf-symbol name='__dma_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a7231c'/>
+      <elf-symbol name='__do_once_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x792722d6'/>
       <elf-symbol name='__do_once_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18e60984'/>
-      <elf-symbol name='__drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd3b3ea3'/>
-      <elf-symbol name='__drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff0c5'/>
-      <elf-symbol name='__drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bd4d093'/>
-      <elf-symbol name='__drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9adfdb5'/>
-      <elf-symbol name='__drm_atomic_helper_crtc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6c5fa5c'/>
-      <elf-symbol name='__drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8306aea3'/>
-      <elf-symbol name='__drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b8cb5a8'/>
-      <elf-symbol name='__drm_atomic_helper_private_obj_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8619ed8c'/>
+      <elf-symbol name='__drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2473a691'/>
+      <elf-symbol name='__drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x539477c'/>
+      <elf-symbol name='__drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ef87846'/>
+      <elf-symbol name='__drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b8e1b25'/>
+      <elf-symbol name='__drm_atomic_helper_crtc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30afae43'/>
+      <elf-symbol name='__drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb55e240a'/>
+      <elf-symbol name='__drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x372d9d41'/>
+      <elf-symbol name='__drm_atomic_helper_private_obj_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x492f653'/>
       <elf-symbol name='__drm_atomic_state_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cad492'/>
       <elf-symbol name='__drm_crtc_commit_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae277372'/>
       <elf-symbol name='__drm_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec12af74'/>
@@ -81,21 +81,21 @@
       <elf-symbol name='__drm_printfn_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb953b1'/>
       <elf-symbol name='__drm_puts_coredump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b0e5e9c'/>
       <elf-symbol name='__drm_puts_seq_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x513072fe'/>
-      <elf-symbol name='__dynamic_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40db9de7'/>
+      <elf-symbol name='__dynamic_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bffa5c7'/>
       <elf-symbol name='__dynamic_pr_debug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x837b7b09'/>
-      <elf-symbol name='__ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26e3598b'/>
+      <elf-symbol name='__ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x166a9bf6'/>
       <elf-symbol name='__fdget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1d8cfaf'/>
-      <elf-symbol name='__free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacd2f3fc'/>
+      <elf-symbol name='__free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafb98789'/>
       <elf-symbol name='__get_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a5cb5ee'/>
-      <elf-symbol name='__get_task_comm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e8de867'/>
-      <elf-symbol name='__hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaa84ac3'/>
-      <elf-symbol name='__hci_cmd_sync_ev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x687f046b'/>
-      <elf-symbol name='__hvc_resize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd452da24'/>
-      <elf-symbol name='__hwspin_lock_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe33e7fcf'/>
-      <elf-symbol name='__hwspin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccef5d0'/>
-      <elf-symbol name='__i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x488f26bf'/>
-      <elf-symbol name='__i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17263c79'/>
-      <elf-symbol name='__ieee80211_schedule_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d00d9c'/>
+      <elf-symbol name='__get_task_comm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x619f9ce1'/>
+      <elf-symbol name='__hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58ab3544'/>
+      <elf-symbol name='__hci_cmd_sync_ev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff21ce7b'/>
+      <elf-symbol name='__hvc_resize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x626a2c75'/>
+      <elf-symbol name='__hwspin_lock_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5756a223'/>
+      <elf-symbol name='__hwspin_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11ff81de'/>
+      <elf-symbol name='__i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x358c59c8'/>
+      <elf-symbol name='__i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb76589cb'/>
+      <elf-symbol name='__ieee80211_schedule_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90bb7c27'/>
       <elf-symbol name='__init_rwsem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5a94b83'/>
       <elf-symbol name='__init_swait_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x608741b5'/>
       <elf-symbol name='__init_waitqueue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a5ea54'/>
@@ -104,7 +104,7 @@
       <elf-symbol name='__iowrite32_copy' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x2dba276a'/>
       <elf-symbol name='__ipv6_addr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd542439'/>
       <elf-symbol name='__irq_alloc_descs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5db075d0'/>
-      <elf-symbol name='__irq_domain_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76f6e37a'/>
+      <elf-symbol name='__irq_domain_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc093ed99'/>
       <elf-symbol name='__kfifo_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x139f2189'/>
       <elf-symbol name='__kfifo_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb760f52'/>
       <elf-symbol name='__kfifo_from_user_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeebc7c4'/>
@@ -116,83 +116,83 @@
       <elf-symbol name='__kfifo_skip_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce4e47b6'/>
       <elf-symbol name='__kfifo_to_user_r' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2484adc3'/>
       <elf-symbol name='__kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb233a45'/>
-      <elf-symbol name='__kthread_init_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b11dfa0'/>
+      <elf-symbol name='__kthread_init_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0befef5'/>
       <elf-symbol name='__list_add_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68f31cbd'/>
       <elf-symbol name='__list_del_entry_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1537255'/>
       <elf-symbol name='__local_bh_enable_ip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c3fce39'/>
-      <elf-symbol name='__lock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa32d6865'/>
+      <elf-symbol name='__lock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x560943f3'/>
       <elf-symbol name='__log_post_read_mmio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6980ea4b'/>
       <elf-symbol name='__log_read_mmio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf1211a8'/>
       <elf-symbol name='__log_write_mmio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31dfd5cd'/>
       <elf-symbol name='__memcpy_fromio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d112304'/>
       <elf-symbol name='__memcpy_toio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf77555cd'/>
       <elf-symbol name='__memset_io' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18b48e28'/>
-      <elf-symbol name='__mmc_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97e0a581'/>
-      <elf-symbol name='__mmc_send_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb91eaab2'/>
-      <elf-symbol name='__mmdrop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ea49da'/>
-      <elf-symbol name='__module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0d15e4c'/>
+      <elf-symbol name='__mmc_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91af504e'/>
+      <elf-symbol name='__mmc_send_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef047731'/>
+      <elf-symbol name='__mmdrop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88845810'/>
+      <elf-symbol name='__module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x846bd83c'/>
       <elf-symbol name='__msecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f02188f'/>
       <elf-symbol name='__mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x574add77'/>
-      <elf-symbol name='__napi_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcafb8b3'/>
-      <elf-symbol name='__napi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc16d462e'/>
+      <elf-symbol name='__napi_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e08ecfc'/>
+      <elf-symbol name='__napi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb2b5026'/>
       <elf-symbol name='__ndelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf8c695a'/>
-      <elf-symbol name='__netdev_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5ca2f9d'/>
-      <elf-symbol name='__netif_napi_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597442ef'/>
-      <elf-symbol name='__netif_set_xps_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72b434f8'/>
-      <elf-symbol name='__netlink_kernel_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1548948d'/>
+      <elf-symbol name='__netdev_alloc_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5084d216'/>
+      <elf-symbol name='__netif_napi_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x982c6b65'/>
+      <elf-symbol name='__netif_set_xps_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcc63aa3'/>
+      <elf-symbol name='__netlink_kernel_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5b0e8c9'/>
       <elf-symbol name='__nla_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x420964e3'/>
-      <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5c03c7'/>
-      <elf-symbol name='__of_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x220b3ca3'/>
-      <elf-symbol name='__page_frag_cache_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82702c60'/>
-      <elf-symbol name='__page_pinner_put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9de074a1'/>
-      <elf-symbol name='__pci_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a11108d'/>
-      <elf-symbol name='__platform_driver_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c511cf2'/>
-      <elf-symbol name='__platform_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8390dd5'/>
-      <elf-symbol name='__pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd3dd7dd'/>
-      <elf-symbol name='__pm_runtime_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d9929c0'/>
-      <elf-symbol name='__pm_runtime_idle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3b4f137'/>
-      <elf-symbol name='__pm_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa30f67b5'/>
-      <elf-symbol name='__pm_runtime_set_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4131f3b'/>
-      <elf-symbol name='__pm_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47ef9e5f'/>
-      <elf-symbol name='__pm_runtime_use_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c735047'/>
-      <elf-symbol name='__pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811ba580'/>
+      <elf-symbol name='__nlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbfb609e'/>
+      <elf-symbol name='__of_reset_control_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a1a417a'/>
+      <elf-symbol name='__page_frag_cache_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x725de0ab'/>
+      <elf-symbol name='__page_pinner_put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1641e9'/>
+      <elf-symbol name='__pci_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49db0a50'/>
+      <elf-symbol name='__platform_driver_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56048cc3'/>
+      <elf-symbol name='__platform_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc63c1c69'/>
+      <elf-symbol name='__pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x242e07e2'/>
+      <elf-symbol name='__pm_runtime_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa15d2b0'/>
+      <elf-symbol name='__pm_runtime_idle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x889b1352'/>
+      <elf-symbol name='__pm_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7c2a131'/>
+      <elf-symbol name='__pm_runtime_set_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0c974be'/>
+      <elf-symbol name='__pm_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e65c7e6'/>
+      <elf-symbol name='__pm_runtime_use_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x449d5f5e'/>
+      <elf-symbol name='__pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e2c4f7'/>
       <elf-symbol name='__printk_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6128b5fc'/>
-      <elf-symbol name='__pskb_pull_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81706f8d'/>
+      <elf-symbol name='__pskb_pull_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec28707f'/>
       <elf-symbol name='__put_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5ce765e'/>
-      <elf-symbol name='__put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ea8ef0'/>
-      <elf-symbol name='__put_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171996f6'/>
+      <elf-symbol name='__put_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x990fb212'/>
+      <elf-symbol name='__put_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8ae89e'/>
       <elf-symbol name='__rcu_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d522714'/>
       <elf-symbol name='__rcu_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2469810f'/>
       <elf-symbol name='__refrigerator' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4482cdb'/>
-      <elf-symbol name='__register_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f79f981'/>
-      <elf-symbol name='__register_rpmsg_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacee8545'/>
-      <elf-symbol name='__regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32182d15'/>
+      <elf-symbol name='__register_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe101410b'/>
+      <elf-symbol name='__register_rpmsg_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75b1d5cf'/>
+      <elf-symbol name='__regmap_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd8540d9'/>
       <elf-symbol name='__release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1848221d'/>
       <elf-symbol name='__request_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa24f23d8'/>
       <elf-symbol name='__request_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d9ee2a0'/>
       <elf-symbol name='__request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca39ba0'/>
       <elf-symbol name='__rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0d156e9'/>
-      <elf-symbol name='__root_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf56f834'/>
-      <elf-symbol name='__rt_mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9377942'/>
-      <elf-symbol name='__rtc_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5384acc6'/>
-      <elf-symbol name='__scsi_iterate_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba247812'/>
-      <elf-symbol name='__scsi_print_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4870c30d'/>
-      <elf-symbol name='__sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbde46141'/>
-      <elf-symbol name='__sdhci_set_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe676c15'/>
-      <elf-symbol name='__seq_open_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x264ece54'/>
-      <elf-symbol name='__serio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb966a74c'/>
-      <elf-symbol name='__serio_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57539006'/>
+      <elf-symbol name='__root_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa43365cc'/>
+      <elf-symbol name='__rt_mutex_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x488361de'/>
+      <elf-symbol name='__rtc_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeba2d63f'/>
+      <elf-symbol name='__scsi_iterate_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdc5873e'/>
+      <elf-symbol name='__scsi_print_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c0f26fc'/>
+      <elf-symbol name='__sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6609c418'/>
+      <elf-symbol name='__sdhci_set_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b36f8'/>
+      <elf-symbol name='__seq_open_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d36b19e'/>
+      <elf-symbol name='__serio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eafcad8'/>
+      <elf-symbol name='__serio_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c2ffda'/>
       <elf-symbol name='__sg_page_iter_dma_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc445ceb'/>
       <elf-symbol name='__sg_page_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9ca58f'/>
       <elf-symbol name='__sg_page_iter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd4c999'/>
       <elf-symbol name='__skb_ext_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42e61877'/>
-      <elf-symbol name='__skb_flow_dissect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bafb455'/>
-      <elf-symbol name='__skb_get_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7633562'/>
-      <elf-symbol name='__skb_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a49eae'/>
-      <elf-symbol name='__spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf46fef67'/>
-      <elf-symbol name='__spi_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x748fa1fb'/>
-      <elf-symbol name='__splice_from_pipe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x608c4e42'/>
-      <elf-symbol name='__spmi_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x929d956f'/>
+      <elf-symbol name='__skb_flow_dissect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9493412'/>
+      <elf-symbol name='__skb_get_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84c39500'/>
+      <elf-symbol name='__skb_pad' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fa84f12'/>
+      <elf-symbol name='__spi_alloc_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf489c20c'/>
+      <elf-symbol name='__spi_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53dd52a1'/>
+      <elf-symbol name='__splice_from_pipe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ef530b4'/>
+      <elf-symbol name='__spmi_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe7484de'/>
       <elf-symbol name='__srcu_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70272ece'/>
       <elf-symbol name='__stack_chk_fail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98a9d10c'/>
       <elf-symbol name='__sw_hweight16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57674fd7'/>
@@ -200,78 +200,78 @@
       <elf-symbol name='__sw_hweight64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f46ced8'/>
       <elf-symbol name='__sw_hweight8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc3fcbc9'/>
       <elf-symbol name='__sysfs_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169938c1'/>
-      <elf-symbol name='__task_pid_nr_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1944182'/>
+      <elf-symbol name='__task_pid_nr_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa34bf526'/>
       <elf-symbol name='__tasklet_hi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e3bad0a'/>
       <elf-symbol name='__tasklet_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d2ab8ac'/>
       <elf-symbol name='__trace_bprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa20d01ba'/>
       <elf-symbol name='__traceiter_android_rvh_arm64_serror_panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe90dfa30'/>
       <elf-symbol name='__traceiter_android_rvh_attach_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4a0bd87'/>
       <elf-symbol name='__traceiter_android_rvh_bad_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dc2e9e1'/>
-      <elf-symbol name='__traceiter_android_rvh_cgroup_force_kthread_migration' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x147db077'/>
-      <elf-symbol name='__traceiter_android_rvh_check_preempt_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79ac8f47'/>
-      <elf-symbol name='__traceiter_android_rvh_cpu_cgroup_online' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe22f3592'/>
+      <elf-symbol name='__traceiter_android_rvh_cgroup_force_kthread_migration' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9c76fb5'/>
+      <elf-symbol name='__traceiter_android_rvh_check_preempt_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e6d9b11'/>
+      <elf-symbol name='__traceiter_android_rvh_cpu_cgroup_online' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x939b6153'/>
       <elf-symbol name='__traceiter_android_rvh_cpu_overutilized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f085466'/>
-      <elf-symbol name='__traceiter_android_rvh_dequeue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87a58d4a'/>
-      <elf-symbol name='__traceiter_android_rvh_dequeue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd1dff4f'/>
+      <elf-symbol name='__traceiter_android_rvh_dequeue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54746f6f'/>
+      <elf-symbol name='__traceiter_android_rvh_dequeue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe60648a2'/>
       <elf-symbol name='__traceiter_android_rvh_detach_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc383818'/>
       <elf-symbol name='__traceiter_android_rvh_die_kernel_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91f68209'/>
       <elf-symbol name='__traceiter_android_rvh_do_mem_abort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x669812d6'/>
       <elf-symbol name='__traceiter_android_rvh_do_sea' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1b06d02'/>
       <elf-symbol name='__traceiter_android_rvh_do_sp_pc_abort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47243dfd'/>
       <elf-symbol name='__traceiter_android_rvh_do_undefinstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xace8e825'/>
-      <elf-symbol name='__traceiter_android_rvh_enqueue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe120adf'/>
-      <elf-symbol name='__traceiter_android_rvh_enqueue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e25123a'/>
-      <elf-symbol name='__traceiter_android_rvh_find_energy_efficient_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc97c3034'/>
+      <elf-symbol name='__traceiter_android_rvh_enqueue_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c42fab8'/>
+      <elf-symbol name='__traceiter_android_rvh_enqueue_task_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda8f82f0'/>
+      <elf-symbol name='__traceiter_android_rvh_find_energy_efficient_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34729d74'/>
       <elf-symbol name='__traceiter_android_rvh_irqs_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x707d1f10'/>
       <elf-symbol name='__traceiter_android_rvh_irqs_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a345722'/>
       <elf-symbol name='__traceiter_android_rvh_post_init_entity_util_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcfea98e'/>
       <elf-symbol name='__traceiter_android_rvh_preempt_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1585c762'/>
       <elf-symbol name='__traceiter_android_rvh_preempt_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3235e37a'/>
       <elf-symbol name='__traceiter_android_rvh_remove_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b4a6c40'/>
-      <elf-symbol name='__traceiter_android_rvh_sched_fork' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a88ecfe'/>
-      <elf-symbol name='__traceiter_android_rvh_select_task_rq_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82cd0e36'/>
-      <elf-symbol name='__traceiter_android_rvh_select_task_rq_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ec54a6'/>
-      <elf-symbol name='__traceiter_android_rvh_set_iowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c3f2145'/>
+      <elf-symbol name='__traceiter_android_rvh_sched_fork' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17bc915e'/>
+      <elf-symbol name='__traceiter_android_rvh_select_task_rq_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6406a68'/>
+      <elf-symbol name='__traceiter_android_rvh_select_task_rq_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfb6c27d'/>
+      <elf-symbol name='__traceiter_android_rvh_set_iowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a145935'/>
       <elf-symbol name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x760027e1'/>
       <elf-symbol name='__traceiter_android_rvh_typec_tcpci_get_vbus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37614c90'/>
-      <elf-symbol name='__traceiter_android_rvh_uclamp_eff_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x836419dc'/>
+      <elf-symbol name='__traceiter_android_rvh_uclamp_eff_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb502e3e'/>
       <elf-symbol name='__traceiter_android_rvh_uclamp_rq_util_with' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88355ef0'/>
       <elf-symbol name='__traceiter_android_rvh_ufs_complete_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x347db806'/>
       <elf-symbol name='__traceiter_android_rvh_ufs_reprogram_all_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac38cf23'/>
       <elf-symbol name='__traceiter_android_rvh_update_blocked_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d9b54a'/>
       <elf-symbol name='__traceiter_android_rvh_update_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeff8bb86'/>
-      <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2968ee74'/>
-      <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a71ea37'/>
+      <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f6d539a'/>
+      <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f0eea4f'/>
       <elf-symbol name='__traceiter_android_vh_aes_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1574b'/>
       <elf-symbol name='__traceiter_android_vh_aes_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6160ff0c'/>
       <elf-symbol name='__traceiter_android_vh_aes_expandkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc004b58'/>
       <elf-symbol name='__traceiter_android_vh_arch_set_freq_scale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb98e0e01'/>
-      <elf-symbol name='__traceiter_android_vh_cma_alloc_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28d7e2e'/>
+      <elf-symbol name='__traceiter_android_vh_cma_alloc_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c702b9d'/>
       <elf-symbol name='__traceiter_android_vh_cma_alloc_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44fcd06e'/>
       <elf-symbol name='__traceiter_android_vh_cpu_idle_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdc34d2e'/>
       <elf-symbol name='__traceiter_android_vh_cpu_idle_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd966796c'/>
-      <elf-symbol name='__traceiter_android_vh_dup_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eb9ac10'/>
+      <elf-symbol name='__traceiter_android_vh_dup_task_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75831bf5'/>
       <elf-symbol name='__traceiter_android_vh_enable_thermal_genl_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc39a1e16'/>
       <elf-symbol name='__traceiter_android_vh_ep_create_wakeup_source' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e8ed582'/>
-      <elf-symbol name='__traceiter_android_vh_get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee8ed45c'/>
-      <elf-symbol name='__traceiter_android_vh_internal_get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9008bc04'/>
+      <elf-symbol name='__traceiter_android_vh_get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8977c50b'/>
+      <elf-symbol name='__traceiter_android_vh_internal_get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f769392'/>
       <elf-symbol name='__traceiter_android_vh_ipi_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x250fcbba'/>
-      <elf-symbol name='__traceiter_android_vh_meminfo_proc_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6b0362e'/>
+      <elf-symbol name='__traceiter_android_vh_meminfo_proc_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f459b4f'/>
       <elf-symbol name='__traceiter_android_vh_mmc_blk_mq_rw_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a666675'/>
       <elf-symbol name='__traceiter_android_vh_mmc_blk_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae47a396'/>
-      <elf-symbol name='__traceiter_android_vh_of_i2c_get_board_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcc0513d'/>
-      <elf-symbol name='__traceiter_android_vh_pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0e4bbcf'/>
-      <elf-symbol name='__traceiter_android_vh_pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf840148d'/>
-      <elf-symbol name='__traceiter_android_vh_rmqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9aacbdd9'/>
+      <elf-symbol name='__traceiter_android_vh_of_i2c_get_board_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df245da'/>
+      <elf-symbol name='__traceiter_android_vh_pagecache_get_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5017b0cf'/>
+      <elf-symbol name='__traceiter_android_vh_pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ceece8'/>
+      <elf-symbol name='__traceiter_android_vh_rmqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fc0cdf1'/>
       <elf-symbol name='__traceiter_android_vh_scheduler_tick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c91de8f'/>
-      <elf-symbol name='__traceiter_android_vh_setscheduler_uclamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2670a8ee'/>
+      <elf-symbol name='__traceiter_android_vh_setscheduler_uclamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b1ef6c0'/>
       <elf-symbol name='__traceiter_android_vh_sha256' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88fe3e25'/>
       <elf-symbol name='__traceiter_android_vh_snd_compr_use_pause_in_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6ab1ad2'/>
-      <elf-symbol name='__traceiter_android_vh_sound_usb_support_cpu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76b8b179'/>
+      <elf-symbol name='__traceiter_android_vh_sound_usb_support_cpu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb67e469'/>
       <elf-symbol name='__traceiter_android_vh_sysrq_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40207816'/>
       <elf-symbol name='__traceiter_android_vh_thermal_pm_notify_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d0ef19f'/>
       <elf-symbol name='__traceiter_android_vh_timerfd_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c68d59c'/>
-      <elf-symbol name='__traceiter_android_vh_try_grab_compound_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76902002'/>
+      <elf-symbol name='__traceiter_android_vh_try_grab_compound_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15789cd0'/>
       <elf-symbol name='__traceiter_android_vh_typec_store_partner_src_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3707443'/>
       <elf-symbol name='__traceiter_android_vh_typec_tcpci_override_toggling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd3fc09b'/>
       <elf-symbol name='__traceiter_android_vh_typec_tcpm_get_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa264e589'/>
@@ -285,56 +285,56 @@
       <elf-symbol name='__traceiter_android_vh_ufs_send_tm_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ad14fe0'/>
       <elf-symbol name='__traceiter_android_vh_ufs_send_uic_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa724649'/>
       <elf-symbol name='__traceiter_android_vh_ufs_update_sysfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68f34378'/>
-      <elf-symbol name='__traceiter_android_vh_usb_dev_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10cf4398'/>
-      <elf-symbol name='__traceiter_android_vh_usb_dev_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f736b79'/>
+      <elf-symbol name='__traceiter_android_vh_usb_dev_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec70da1'/>
+      <elf-symbol name='__traceiter_android_vh_usb_dev_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3e970b8'/>
       <elf-symbol name='__traceiter_clock_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa45eb358'/>
       <elf-symbol name='__traceiter_cpu_frequency' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xead3e41b'/>
-      <elf-symbol name='__traceiter_device_pm_callback_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeee62d16'/>
-      <elf-symbol name='__traceiter_device_pm_callback_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3556ef52'/>
+      <elf-symbol name='__traceiter_device_pm_callback_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf14d833'/>
+      <elf-symbol name='__traceiter_device_pm_callback_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x975dd125'/>
       <elf-symbol name='__traceiter_dma_fence_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59e1482'/>
       <elf-symbol name='__traceiter_dwc3_readl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26871a2b'/>
       <elf-symbol name='__traceiter_dwc3_writel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcff87172'/>
       <elf-symbol name='__traceiter_gpu_mem_total' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x448af6f4'/>
       <elf-symbol name='__traceiter_mm_vmscan_direct_reclaim_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x803bf202'/>
       <elf-symbol name='__traceiter_mm_vmscan_direct_reclaim_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2520b8a'/>
-      <elf-symbol name='__traceiter_pelt_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f4cf534'/>
-      <elf-symbol name='__traceiter_pelt_dl_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36a981b4'/>
-      <elf-symbol name='__traceiter_pelt_irq_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d83e737'/>
-      <elf-symbol name='__traceiter_pelt_rt_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf253dc81'/>
-      <elf-symbol name='__traceiter_pelt_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2223ef63'/>
+      <elf-symbol name='__traceiter_pelt_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c89d510'/>
+      <elf-symbol name='__traceiter_pelt_dl_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5e180bc'/>
+      <elf-symbol name='__traceiter_pelt_irq_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f945efd'/>
+      <elf-symbol name='__traceiter_pelt_rt_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf680ebec'/>
+      <elf-symbol name='__traceiter_pelt_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2c9d1fc'/>
       <elf-symbol name='__traceiter_rwmmio_post_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7257c10'/>
       <elf-symbol name='__traceiter_rwmmio_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42dea6f7'/>
       <elf-symbol name='__traceiter_rwmmio_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x729023fd'/>
-      <elf-symbol name='__traceiter_sched_cpu_capacity_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x451b98b9'/>
+      <elf-symbol name='__traceiter_sched_cpu_capacity_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a08bfe7'/>
       <elf-symbol name='__traceiter_sched_overutilized_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f8c3cab'/>
-      <elf-symbol name='__traceiter_sched_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14e64933'/>
-      <elf-symbol name='__traceiter_sched_util_est_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9990573a'/>
-      <elf-symbol name='__traceiter_sched_util_est_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63423c10'/>
+      <elf-symbol name='__traceiter_sched_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbf3c3bc'/>
+      <elf-symbol name='__traceiter_sched_util_est_cfs_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9a7ce0c'/>
+      <elf-symbol name='__traceiter_sched_util_est_se_tp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bd905f3'/>
       <elf-symbol name='__traceiter_suspend_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5883efb'/>
-      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa06f3624'/>
-      <elf-symbol name='__tty_insert_flip_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ad626c6'/>
+      <elf-symbol name='__traceiter_xdp_exception' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf932933'/>
+      <elf-symbol name='__tty_insert_flip_char' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27f8cbdd'/>
       <elf-symbol name='__udelay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e7d6bd0'/>
-      <elf-symbol name='__uio_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x817cf9ee'/>
+      <elf-symbol name='__uio_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb07eb77f'/>
       <elf-symbol name='__unregister_chrdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bc3fbc0'/>
-      <elf-symbol name='__update_load_avg_blocked_se' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa49fae98'/>
-      <elf-symbol name='__usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde809bee'/>
+      <elf-symbol name='__update_load_avg_blocked_se' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9199651'/>
+      <elf-symbol name='__usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5cc9a1e'/>
       <elf-symbol name='__usecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1969a8e'/>
-      <elf-symbol name='__video_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeed2b56d'/>
+      <elf-symbol name='__video_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8995d6eb'/>
       <elf-symbol name='__wake_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eeb2322'/>
       <elf-symbol name='__wake_up_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2773c485'/>
       <elf-symbol name='__wake_up_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8273d0b'/>
       <elf-symbol name='__warn_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56470118'/>
       <elf-symbol name='__xa_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf40e7a73'/>
-      <elf-symbol name='__xfrm_state_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x677fd8de'/>
-      <elf-symbol name='_copy_from_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa016aa25'/>
-      <elf-symbol name='_copy_from_iter_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdbf0404'/>
-      <elf-symbol name='_copy_to_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1df176e9'/>
-      <elf-symbol name='_dev_crit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f7756cf'/>
-      <elf-symbol name='_dev_emerg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44f20b51'/>
-      <elf-symbol name='_dev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x216240e'/>
-      <elf-symbol name='_dev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf65b59e'/>
-      <elf-symbol name='_dev_notice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa78ffc37'/>
-      <elf-symbol name='_dev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f385e04'/>
+      <elf-symbol name='__xfrm_state_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4e80eb7'/>
+      <elf-symbol name='_copy_from_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a316df2'/>
+      <elf-symbol name='_copy_from_iter_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd919750b'/>
+      <elf-symbol name='_copy_to_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc93a4f2d'/>
+      <elf-symbol name='_dev_crit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c9bd466'/>
+      <elf-symbol name='_dev_emerg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6322b4f2'/>
+      <elf-symbol name='_dev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c2f7f69'/>
+      <elf-symbol name='_dev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25e353e8'/>
+      <elf-symbol name='_dev_notice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68e8aa02'/>
+      <elf-symbol name='_dev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16a2e62a'/>
       <elf-symbol name='_raw_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe8c61f0'/>
       <elf-symbol name='_raw_read_lock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8dee722d'/>
       <elf-symbol name='_raw_read_lock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48112d76'/>
@@ -360,42 +360,42 @@
       <elf-symbol name='_raw_write_unlock_bh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7ab1ecc'/>
       <elf-symbol name='_raw_write_unlock_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f76baf4'/>
       <elf-symbol name='_raw_write_unlock_irqrestore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb078aee'/>
-      <elf-symbol name='_snd_ctl_add_follower' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc49fa2b9'/>
+      <elf-symbol name='_snd_ctl_add_follower' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfaa45ec0'/>
       <elf-symbol name='add_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eb808d0'/>
       <elf-symbol name='add_device_randomness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fb6de5d'/>
-      <elf-symbol name='add_random_ready_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x872f3b5c'/>
+      <elf-symbol name='add_random_ready_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80494ad4'/>
       <elf-symbol name='add_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65744673'/>
       <elf-symbol name='add_timer_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa83a512'/>
       <elf-symbol name='add_uevent_var' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c6febfc'/>
       <elf-symbol name='add_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4afb2238'/>
-      <elf-symbol name='adjust_managed_page_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2fa9e5f'/>
-      <elf-symbol name='aead_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfffa69'/>
+      <elf-symbol name='adjust_managed_page_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb17b1592'/>
+      <elf-symbol name='aead_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x632fdb39'/>
       <elf-symbol name='aes_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77e9eb37'/>
       <elf-symbol name='aes_expandkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x558b281d'/>
-      <elf-symbol name='ahash_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x559eb8fd'/>
+      <elf-symbol name='ahash_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41a4cf8'/>
       <elf-symbol name='alarm_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x536e1fa7'/>
       <elf-symbol name='alarm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fbe3658'/>
       <elf-symbol name='alarm_start_relative' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb6361a'/>
       <elf-symbol name='alarm_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3295ffe'/>
-      <elf-symbol name='alarmtimer_get_rtcdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfbb1c96'/>
-      <elf-symbol name='alloc_anon_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd987c1'/>
-      <elf-symbol name='alloc_can_err_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x355dd968'/>
-      <elf-symbol name='alloc_can_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c6016cf'/>
-      <elf-symbol name='alloc_candev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc83c324'/>
+      <elf-symbol name='alarmtimer_get_rtcdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe05db369'/>
+      <elf-symbol name='alloc_anon_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29672e56'/>
+      <elf-symbol name='alloc_can_err_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98339ded'/>
+      <elf-symbol name='alloc_can_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe27a9002'/>
+      <elf-symbol name='alloc_candev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97da26c4'/>
       <elf-symbol name='alloc_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3ec2f2b'/>
-      <elf-symbol name='alloc_etherdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9445cf15'/>
-      <elf-symbol name='alloc_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d6234b'/>
-      <elf-symbol name='alloc_netdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b9a8691'/>
+      <elf-symbol name='alloc_etherdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35259fd5'/>
+      <elf-symbol name='alloc_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15b12fac'/>
+      <elf-symbol name='alloc_netdev_mqs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c573a3e'/>
       <elf-symbol name='alloc_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fc72f0e'/>
-      <elf-symbol name='alloc_skb_with_frags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ee2faec'/>
+      <elf-symbol name='alloc_skb_with_frags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbea02d1e'/>
       <elf-symbol name='alloc_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf9208c0'/>
-      <elf-symbol name='amba_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab8e7ee9'/>
-      <elf-symbol name='amba_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6d92348'/>
-      <elf-symbol name='amba_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf98505ee'/>
-      <elf-symbol name='amba_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaffc04e6'/>
+      <elf-symbol name='amba_driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabb0625b'/>
+      <elf-symbol name='amba_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x410b032e'/>
+      <elf-symbol name='amba_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5444cc67'/>
+      <elf-symbol name='amba_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae08667d'/>
       <elf-symbol name='android_debug_symbol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c42be3b'/>
       <elf-symbol name='android_rvh_probe_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fbbd0bb'/>
-      <elf-symbol name='anon_inode_getfd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ceb2021'/>
+      <elf-symbol name='anon_inode_getfd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaed0b7f'/>
       <elf-symbol name='argv_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0b13336'/>
       <elf-symbol name='argv_split' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7380dffa'/>
       <elf-symbol name='async_schedule_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5f370e0'/>
@@ -406,28 +406,28 @@
       <elf-symbol name='atomic_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7181db30'/>
       <elf-symbol name='autoremove_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad73041f'/>
       <elf-symbol name='available_idle_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2088e082'/>
-      <elf-symbol name='backlight_device_set_brightness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe023e65a'/>
-      <elf-symbol name='badblocks_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72a4830e'/>
-      <elf-symbol name='badblocks_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85dc420a'/>
-      <elf-symbol name='badblocks_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdc0406b'/>
-      <elf-symbol name='badblocks_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2215b6c'/>
-      <elf-symbol name='badblocks_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7836c1e5'/>
-      <elf-symbol name='badblocks_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb658d6fc'/>
+      <elf-symbol name='backlight_device_set_brightness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x925d335d'/>
+      <elf-symbol name='badblocks_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d85af16'/>
+      <elf-symbol name='badblocks_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6054cf88'/>
+      <elf-symbol name='badblocks_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4e5d7e7'/>
+      <elf-symbol name='badblocks_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45f45cfd'/>
+      <elf-symbol name='badblocks_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5097dda4'/>
+      <elf-symbol name='badblocks_show' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4dd333d'/>
       <elf-symbol name='bcmp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x263c3152'/>
-      <elf-symbol name='bd_set_nr_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1214b348'/>
-      <elf-symbol name='bdget_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d24fad3'/>
-      <elf-symbol name='bdput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa56ff2ce'/>
-      <elf-symbol name='bgpio_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf8869cd'/>
+      <elf-symbol name='bd_set_nr_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8aa279c'/>
+      <elf-symbol name='bdget_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3055f15c'/>
+      <elf-symbol name='bdput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c014972'/>
+      <elf-symbol name='bgpio_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb06712b5'/>
       <elf-symbol name='bin2hex' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd45cc6ca'/>
-      <elf-symbol name='bio_add_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54845d5b'/>
-      <elf-symbol name='bio_alloc_bioset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x591299e2'/>
-      <elf-symbol name='bio_associate_blkg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cbacfe5'/>
-      <elf-symbol name='bio_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58c23856'/>
-      <elf-symbol name='bio_clone_blkg_association' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee9ece25'/>
-      <elf-symbol name='bio_crypt_set_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78435629'/>
-      <elf-symbol name='bio_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfc2b1b2'/>
-      <elf-symbol name='bio_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11964b10'/>
-      <elf-symbol name='bio_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5ae3d0'/>
+      <elf-symbol name='bio_add_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfad339bf'/>
+      <elf-symbol name='bio_alloc_bioset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ec46e6'/>
+      <elf-symbol name='bio_associate_blkg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87e4803a'/>
+      <elf-symbol name='bio_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d84a413'/>
+      <elf-symbol name='bio_clone_blkg_association' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9ad681'/>
+      <elf-symbol name='bio_crypt_set_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72cbabb6'/>
+      <elf-symbol name='bio_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb02c76a'/>
+      <elf-symbol name='bio_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfa4f911'/>
+      <elf-symbol name='bio_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaae20768'/>
       <elf-symbol name='bit_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44bae227'/>
       <elf-symbol name='bitmap_find_next_zero_area_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64127b67'/>
       <elf-symbol name='bitmap_from_arr32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8d07858'/>
@@ -435,184 +435,184 @@
       <elf-symbol name='bitmap_parselist' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b015d25'/>
       <elf-symbol name='bitmap_print_to_pagebuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf474c21c'/>
       <elf-symbol name='bitmap_to_arr32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ec54e78'/>
-      <elf-symbol name='blk_abort_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x953d30ae'/>
-      <elf-symbol name='blk_alloc_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe00c29b0'/>
+      <elf-symbol name='blk_abort_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d44a655'/>
+      <elf-symbol name='blk_alloc_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9555eb07'/>
       <elf-symbol name='blk_check_plugged' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd27b25dd'/>
-      <elf-symbol name='blk_cleanup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x416d0715'/>
+      <elf-symbol name='blk_cleanup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c5a6dbd'/>
       <elf-symbol name='blk_crypto_init_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50f8429f'/>
-      <elf-symbol name='blk_execute_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7de97f9'/>
-      <elf-symbol name='blk_execute_rq_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4100d4b'/>
-      <elf-symbol name='blk_freeze_queue_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3fd2e'/>
-      <elf-symbol name='blk_get_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d165e5b'/>
-      <elf-symbol name='blk_get_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0d61369'/>
-      <elf-symbol name='blk_ksm_init_passthrough' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cfebca4'/>
-      <elf-symbol name='blk_mq_alloc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d3bf6c2'/>
-      <elf-symbol name='blk_mq_alloc_request_hctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc06b4c'/>
-      <elf-symbol name='blk_mq_alloc_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85f7561b'/>
-      <elf-symbol name='blk_mq_complete_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79534047'/>
-      <elf-symbol name='blk_mq_complete_request_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d21fd72'/>
-      <elf-symbol name='blk_mq_delay_kick_requeue_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb816187'/>
-      <elf-symbol name='blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x108e9720'/>
-      <elf-symbol name='blk_mq_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd0111'/>
-      <elf-symbol name='blk_mq_free_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc972e262'/>
-      <elf-symbol name='blk_mq_freeze_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e2da714'/>
-      <elf-symbol name='blk_mq_freeze_queue_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39757e50'/>
-      <elf-symbol name='blk_mq_freeze_queue_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa020bda1'/>
-      <elf-symbol name='blk_mq_init_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a2ea0ab'/>
-      <elf-symbol name='blk_mq_init_queue_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8004c53d'/>
+      <elf-symbol name='blk_execute_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc286fb5c'/>
+      <elf-symbol name='blk_execute_rq_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x568cd66a'/>
+      <elf-symbol name='blk_freeze_queue_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ca1897'/>
+      <elf-symbol name='blk_get_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79225c8c'/>
+      <elf-symbol name='blk_get_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28083d0f'/>
+      <elf-symbol name='blk_ksm_init_passthrough' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef0000'/>
+      <elf-symbol name='blk_mq_alloc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36fdd11'/>
+      <elf-symbol name='blk_mq_alloc_request_hctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf261a34'/>
+      <elf-symbol name='blk_mq_alloc_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ef63916'/>
+      <elf-symbol name='blk_mq_complete_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76131ea8'/>
+      <elf-symbol name='blk_mq_complete_request_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20783ee4'/>
+      <elf-symbol name='blk_mq_delay_kick_requeue_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9311eaf6'/>
+      <elf-symbol name='blk_mq_end_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af48802'/>
+      <elf-symbol name='blk_mq_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf148a750'/>
+      <elf-symbol name='blk_mq_free_tag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1ce8f1c'/>
+      <elf-symbol name='blk_mq_freeze_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a69c42e'/>
+      <elf-symbol name='blk_mq_freeze_queue_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8e3c8e'/>
+      <elf-symbol name='blk_mq_freeze_queue_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8637bc0'/>
+      <elf-symbol name='blk_mq_init_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e6f34d6'/>
+      <elf-symbol name='blk_mq_init_queue_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcaca3ae'/>
       <elf-symbol name='blk_mq_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d4d7b79'/>
-      <elf-symbol name='blk_mq_pci_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc840797'/>
-      <elf-symbol name='blk_mq_quiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f837643'/>
-      <elf-symbol name='blk_mq_requeue_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb32e0fa8'/>
-      <elf-symbol name='blk_mq_run_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5267ae45'/>
-      <elf-symbol name='blk_mq_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53290736'/>
-      <elf-symbol name='blk_mq_start_stopped_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6868429e'/>
-      <elf-symbol name='blk_mq_stop_hw_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17f42d98'/>
-      <elf-symbol name='blk_mq_stop_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda6dd4fb'/>
-      <elf-symbol name='blk_mq_tag_to_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaeec66d'/>
-      <elf-symbol name='blk_mq_tagset_busy_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9c2a95b'/>
-      <elf-symbol name='blk_mq_tagset_wait_completed_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a881102'/>
-      <elf-symbol name='blk_mq_unfreeze_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc66f5cd'/>
-      <elf-symbol name='blk_mq_unique_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x105e2054'/>
-      <elf-symbol name='blk_mq_unquiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90fe5761'/>
-      <elf-symbol name='blk_mq_update_nr_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9a5012c'/>
-      <elf-symbol name='blk_mq_virtio_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x535973fd'/>
-      <elf-symbol name='blk_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae23816'/>
-      <elf-symbol name='blk_put_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f6aab10'/>
-      <elf-symbol name='blk_put_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f39576'/>
-      <elf-symbol name='blk_queue_alignment_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x878ccd92'/>
-      <elf-symbol name='blk_queue_bounce_limit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbff22866'/>
-      <elf-symbol name='blk_queue_can_use_dma_map_merging' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbdf5888'/>
-      <elf-symbol name='blk_queue_chunk_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd59802e0'/>
-      <elf-symbol name='blk_queue_dma_alignment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d402fb4'/>
-      <elf-symbol name='blk_queue_flag_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde3dae6f'/>
-      <elf-symbol name='blk_queue_flag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62f28f0'/>
-      <elf-symbol name='blk_queue_flag_test_and_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b6b70f6'/>
-      <elf-symbol name='blk_queue_io_min' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53d34ef1'/>
-      <elf-symbol name='blk_queue_io_opt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4d6c68b'/>
-      <elf-symbol name='blk_queue_logical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a0fa933'/>
-      <elf-symbol name='blk_queue_max_discard_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d058be5'/>
-      <elf-symbol name='blk_queue_max_discard_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a28aa8c'/>
-      <elf-symbol name='blk_queue_max_hw_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53976fae'/>
-      <elf-symbol name='blk_queue_max_segment_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x892763dc'/>
-      <elf-symbol name='blk_queue_max_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb887ea6c'/>
-      <elf-symbol name='blk_queue_max_write_zeroes_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x798f5420'/>
-      <elf-symbol name='blk_queue_physical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50036483'/>
-      <elf-symbol name='blk_queue_rq_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x774a3563'/>
-      <elf-symbol name='blk_queue_virt_boundary' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd51a9206'/>
-      <elf-symbol name='blk_queue_write_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a10bc37'/>
-      <elf-symbol name='blk_rq_map_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e6ac5e4'/>
-      <elf-symbol name='blk_rq_map_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e19856c'/>
-      <elf-symbol name='blk_rq_map_user_iov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49249f9d'/>
-      <elf-symbol name='blk_rq_unmap_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd334fdf'/>
-      <elf-symbol name='blk_set_queue_dying' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe44a7ae5'/>
+      <elf-symbol name='blk_mq_pci_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd60c689a'/>
+      <elf-symbol name='blk_mq_quiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2479d1f0'/>
+      <elf-symbol name='blk_mq_requeue_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc0c9ff'/>
+      <elf-symbol name='blk_mq_run_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf59985f3'/>
+      <elf-symbol name='blk_mq_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa697c74'/>
+      <elf-symbol name='blk_mq_start_stopped_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x402cb719'/>
+      <elf-symbol name='blk_mq_stop_hw_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x802dbc42'/>
+      <elf-symbol name='blk_mq_stop_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a4bec2d'/>
+      <elf-symbol name='blk_mq_tag_to_rq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d58bda2'/>
+      <elf-symbol name='blk_mq_tagset_busy_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15ae1dc9'/>
+      <elf-symbol name='blk_mq_tagset_wait_completed_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8482c8'/>
+      <elf-symbol name='blk_mq_unfreeze_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63d76605'/>
+      <elf-symbol name='blk_mq_unique_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6a771ba'/>
+      <elf-symbol name='blk_mq_unquiesce_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x888c9612'/>
+      <elf-symbol name='blk_mq_update_nr_hw_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc07ba589'/>
+      <elf-symbol name='blk_mq_virtio_map_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2add496b'/>
+      <elf-symbol name='blk_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56576f48'/>
+      <elf-symbol name='blk_put_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d4525e9'/>
+      <elf-symbol name='blk_put_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50260b56'/>
+      <elf-symbol name='blk_queue_alignment_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d6a4137'/>
+      <elf-symbol name='blk_queue_bounce_limit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bf73478'/>
+      <elf-symbol name='blk_queue_can_use_dma_map_merging' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f7b7c93'/>
+      <elf-symbol name='blk_queue_chunk_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x320028fc'/>
+      <elf-symbol name='blk_queue_dma_alignment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4559c83f'/>
+      <elf-symbol name='blk_queue_flag_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x343e7734'/>
+      <elf-symbol name='blk_queue_flag_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e001075'/>
+      <elf-symbol name='blk_queue_flag_test_and_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdaefdd7d'/>
+      <elf-symbol name='blk_queue_io_min' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89420351'/>
+      <elf-symbol name='blk_queue_io_opt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aa025e4'/>
+      <elf-symbol name='blk_queue_logical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b757f35'/>
+      <elf-symbol name='blk_queue_max_discard_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5f1e178'/>
+      <elf-symbol name='blk_queue_max_discard_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe732090a'/>
+      <elf-symbol name='blk_queue_max_hw_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7faf587e'/>
+      <elf-symbol name='blk_queue_max_segment_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf14d5d3f'/>
+      <elf-symbol name='blk_queue_max_segments' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda79a5fa'/>
+      <elf-symbol name='blk_queue_max_write_zeroes_sectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec3f524'/>
+      <elf-symbol name='blk_queue_physical_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7821fc5a'/>
+      <elf-symbol name='blk_queue_rq_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8dfa3200'/>
+      <elf-symbol name='blk_queue_virt_boundary' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe049e269'/>
+      <elf-symbol name='blk_queue_write_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd196e035'/>
+      <elf-symbol name='blk_rq_map_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3f899bc'/>
+      <elf-symbol name='blk_rq_map_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc826f099'/>
+      <elf-symbol name='blk_rq_map_user_iov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc17b814c'/>
+      <elf-symbol name='blk_rq_unmap_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35715465'/>
+      <elf-symbol name='blk_set_queue_dying' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22a5706b'/>
       <elf-symbol name='blk_status_to_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84502a47'/>
-      <elf-symbol name='blk_sync_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3dda80a'/>
-      <elf-symbol name='blk_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7210a334'/>
+      <elf-symbol name='blk_sync_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c2addde'/>
+      <elf-symbol name='blk_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58e9c04'/>
       <elf-symbol name='blk_verify_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27639220'/>
-      <elf-symbol name='blkdev_get_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43d2cb86'/>
-      <elf-symbol name='blkdev_get_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d23872f'/>
-      <elf-symbol name='blkdev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86968560'/>
+      <elf-symbol name='blkdev_get_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1423e1e0'/>
+      <elf-symbol name='blkdev_get_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x649791a6'/>
+      <elf-symbol name='blkdev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa836e7d8'/>
       <elf-symbol name='blocking_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8317ad7c'/>
       <elf-symbol name='blocking_notifier_chain_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb0c86a5'/>
       <elf-symbol name='blocking_notifier_chain_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x963aa2a9'/>
       <elf-symbol name='bpf_dispatcher_xdp_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f8f674a'/>
-      <elf-symbol name='bpf_prog_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf490860d'/>
-      <elf-symbol name='bpf_prog_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc04673e9'/>
-      <elf-symbol name='bpf_prog_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x867b9051'/>
-      <elf-symbol name='bpf_trace_run1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x303e6d24'/>
-      <elf-symbol name='bpf_trace_run10' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3b3aa88'/>
-      <elf-symbol name='bpf_trace_run11' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x569ac243'/>
-      <elf-symbol name='bpf_trace_run12' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7179f3fc'/>
-      <elf-symbol name='bpf_trace_run2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb4d16e8'/>
-      <elf-symbol name='bpf_trace_run3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c752078'/>
-      <elf-symbol name='bpf_trace_run4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8619cb06'/>
-      <elf-symbol name='bpf_trace_run5' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe233aa2b'/>
-      <elf-symbol name='bpf_trace_run6' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x667a6f5b'/>
-      <elf-symbol name='bpf_trace_run7' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eabd308'/>
-      <elf-symbol name='bpf_trace_run8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82f341ea'/>
-      <elf-symbol name='bpf_trace_run9' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdcf2fb1'/>
+      <elf-symbol name='bpf_prog_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x366ca9b6'/>
+      <elf-symbol name='bpf_prog_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbdb91e8'/>
+      <elf-symbol name='bpf_prog_sub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56062a22'/>
+      <elf-symbol name='bpf_trace_run1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe6945da'/>
+      <elf-symbol name='bpf_trace_run10' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd40b6709'/>
+      <elf-symbol name='bpf_trace_run11' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2b45e14'/>
+      <elf-symbol name='bpf_trace_run12' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36067839'/>
+      <elf-symbol name='bpf_trace_run2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55cbe2a3'/>
+      <elf-symbol name='bpf_trace_run3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c5ff5e1'/>
+      <elf-symbol name='bpf_trace_run4' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf270ef1b'/>
+      <elf-symbol name='bpf_trace_run5' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21b8c997'/>
+      <elf-symbol name='bpf_trace_run6' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3efd1757'/>
+      <elf-symbol name='bpf_trace_run7' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd2eda80'/>
+      <elf-symbol name='bpf_trace_run8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f3eaada'/>
+      <elf-symbol name='bpf_trace_run9' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1cad306'/>
       <elf-symbol name='bpf_warn_invalid_xdp_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2bcd37'/>
       <elf-symbol name='bt_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b8c32f1'/>
       <elf-symbol name='bt_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x718b8b7'/>
       <elf-symbol name='bt_to_errno' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aad008b'/>
       <elf-symbol name='bt_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x214e4265'/>
-      <elf-symbol name='btbcm_set_bdaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97edbbd2'/>
-      <elf-symbol name='btbcm_setup_apple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7686b027'/>
-      <elf-symbol name='btbcm_setup_patchram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde3eeda9'/>
-      <elf-symbol name='build_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc353678'/>
-      <elf-symbol name='bus_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbe4f6da'/>
-      <elf-symbol name='bus_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b6ccf40'/>
-      <elf-symbol name='bus_for_each_drv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cb311'/>
-      <elf-symbol name='bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x722fce05'/>
-      <elf-symbol name='bus_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fa3c4d1'/>
-      <elf-symbol name='bus_set_iommu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a8fd12'/>
-      <elf-symbol name='bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9a41daf'/>
-      <elf-symbol name='bus_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c7225'/>
+      <elf-symbol name='btbcm_set_bdaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78accd70'/>
+      <elf-symbol name='btbcm_setup_apple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33719b3d'/>
+      <elf-symbol name='btbcm_setup_patchram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x320687a5'/>
+      <elf-symbol name='build_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70ef640f'/>
+      <elf-symbol name='bus_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0ed2be7'/>
+      <elf-symbol name='bus_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a6ea43b'/>
+      <elf-symbol name='bus_for_each_drv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a5b3886'/>
+      <elf-symbol name='bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84e95e4e'/>
+      <elf-symbol name='bus_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x107cec26'/>
+      <elf-symbol name='bus_set_iommu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa46b9b0'/>
+      <elf-symbol name='bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb56d0141'/>
+      <elf-symbol name='bus_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x201e20f7'/>
       <elf-symbol name='cache_line_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x605d5bfa'/>
-      <elf-symbol name='call_netdevice_notifiers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c90beef'/>
-      <elf-symbol name='can_change_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff93097'/>
-      <elf-symbol name='can_free_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd070944e'/>
-      <elf-symbol name='can_get_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x183ac05a'/>
-      <elf-symbol name='can_put_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x151c2d22'/>
+      <elf-symbol name='call_netdevice_notifiers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a6cdf3f'/>
+      <elf-symbol name='can_change_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa54d09b7'/>
+      <elf-symbol name='can_free_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x709049aa'/>
+      <elf-symbol name='can_get_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb794d3b'/>
+      <elf-symbol name='can_put_echo_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea8ca127'/>
       <elf-symbol name='cancel_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda571594'/>
       <elf-symbol name='cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8beca97'/>
       <elf-symbol name='cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd969d6f4'/>
       <elf-symbol name='capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6cbbc89'/>
-      <elf-symbol name='cdev_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9176be3'/>
-      <elf-symbol name='cdev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9e06b71'/>
-      <elf-symbol name='cdev_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429e6a87'/>
-      <elf-symbol name='cdev_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d970e2b'/>
-      <elf-symbol name='cdev_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64dd7b3a'/>
-      <elf-symbol name='cdev_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf14b4529'/>
-      <elf-symbol name='cec_allocate_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x117275f6'/>
-      <elf-symbol name='cec_delete_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a57c5f1'/>
-      <elf-symbol name='cec_received_msg_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb77cd564'/>
-      <elf-symbol name='cec_register_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x360b7f3b'/>
-      <elf-symbol name='cec_s_log_addrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5eaa449d'/>
-      <elf-symbol name='cec_s_phys_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76a5b12'/>
-      <elf-symbol name='cec_s_phys_addr_from_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6936018d'/>
-      <elf-symbol name='cec_transmit_attempt_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x536420dd'/>
-      <elf-symbol name='cec_transmit_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x821f891b'/>
-      <elf-symbol name='cec_unregister_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57241e0d'/>
+      <elf-symbol name='cdev_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0baa58'/>
+      <elf-symbol name='cdev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb698786f'/>
+      <elf-symbol name='cdev_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe80cad67'/>
+      <elf-symbol name='cdev_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b520dc0'/>
+      <elf-symbol name='cdev_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cfa9429'/>
+      <elf-symbol name='cdev_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa21876e3'/>
+      <elf-symbol name='cec_allocate_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac6f41a'/>
+      <elf-symbol name='cec_delete_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d05bedd'/>
+      <elf-symbol name='cec_received_msg_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18ef8b54'/>
+      <elf-symbol name='cec_register_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2790336'/>
+      <elf-symbol name='cec_s_log_addrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17830855'/>
+      <elf-symbol name='cec_s_phys_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf542579'/>
+      <elf-symbol name='cec_s_phys_addr_from_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x903aaeea'/>
+      <elf-symbol name='cec_transmit_attempt_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2027d09f'/>
+      <elf-symbol name='cec_transmit_done_ts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb927885'/>
+      <elf-symbol name='cec_unregister_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62561d8c'/>
       <elf-symbol name='cfg80211_calculate_bitrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15a37cf3'/>
-      <elf-symbol name='cfg80211_ch_switch_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe67863f6'/>
+      <elf-symbol name='cfg80211_ch_switch_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3039342a'/>
       <elf-symbol name='cfg80211_chandef_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef265f27'/>
-      <elf-symbol name='cfg80211_connect_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe511ebe2'/>
-      <elf-symbol name='cfg80211_del_sta_sinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94491b26'/>
-      <elf-symbol name='cfg80211_disconnected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13478138'/>
-      <elf-symbol name='cfg80211_external_auth_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63400bb6'/>
+      <elf-symbol name='cfg80211_connect_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb6f6ef1'/>
+      <elf-symbol name='cfg80211_del_sta_sinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0e219e8'/>
+      <elf-symbol name='cfg80211_disconnected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1885a6b'/>
+      <elf-symbol name='cfg80211_external_auth_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8105b412'/>
       <elf-symbol name='cfg80211_find_elem_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d6cba30'/>
       <elf-symbol name='cfg80211_find_vendor_elem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b82a71'/>
-      <elf-symbol name='cfg80211_get_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75d5ea01'/>
-      <elf-symbol name='cfg80211_gtk_rekey_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb483f8b'/>
-      <elf-symbol name='cfg80211_ibss_joined' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd05257d'/>
-      <elf-symbol name='cfg80211_inform_bss_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb894b40e'/>
-      <elf-symbol name='cfg80211_inform_bss_frame_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab3beb43'/>
-      <elf-symbol name='cfg80211_mgmt_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb87718c'/>
-      <elf-symbol name='cfg80211_michael_mic_failure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c1eccbe'/>
-      <elf-symbol name='cfg80211_new_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2da234f7'/>
-      <elf-symbol name='cfg80211_pmksa_candidate_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4db7285b'/>
-      <elf-symbol name='cfg80211_port_authorized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7366d6'/>
-      <elf-symbol name='cfg80211_put_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaa74022'/>
-      <elf-symbol name='cfg80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x208f4020'/>
-      <elf-symbol name='cfg80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9905798'/>
-      <elf-symbol name='cfg80211_roamed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e379cb6'/>
-      <elf-symbol name='cfg80211_rx_mgmt_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4823f93'/>
-      <elf-symbol name='cfg80211_rx_unprot_mlme_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bfe26b2'/>
-      <elf-symbol name='cfg80211_scan_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd25fa0df'/>
-      <elf-symbol name='cfg80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7b315bc'/>
-      <elf-symbol name='cfg80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98604c49'/>
-      <elf-symbol name='cfg80211_sched_scan_stopped_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb54026a9'/>
-      <elf-symbol name='cfg80211_stop_iface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb0522cc'/>
-      <elf-symbol name='cfg80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7459eb'/>
-      <elf-symbol name='cfg80211_unlink_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa942539e'/>
-      <elf-symbol name='cfg80211_unregister_wdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f722bf1'/>
-      <elf-symbol name='cfg80211_update_owe_info_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af51dc4'/>
-      <elf-symbol name='cfg80211_vendor_cmd_reply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3c1758c'/>
-      <elf-symbol name='class_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61823fd'/>
-      <elf-symbol name='class_interface_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e979ea3'/>
-      <elf-symbol name='class_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3bd2b'/>
+      <elf-symbol name='cfg80211_get_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6222b27'/>
+      <elf-symbol name='cfg80211_gtk_rekey_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f84e919'/>
+      <elf-symbol name='cfg80211_ibss_joined' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55b34df5'/>
+      <elf-symbol name='cfg80211_inform_bss_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe964ffd'/>
+      <elf-symbol name='cfg80211_inform_bss_frame_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa1f775b'/>
+      <elf-symbol name='cfg80211_mgmt_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9967030'/>
+      <elf-symbol name='cfg80211_michael_mic_failure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaedb37b5'/>
+      <elf-symbol name='cfg80211_new_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x773cbbd'/>
+      <elf-symbol name='cfg80211_pmksa_candidate_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c8efbc7'/>
+      <elf-symbol name='cfg80211_port_authorized' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c13069e'/>
+      <elf-symbol name='cfg80211_put_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88eccb27'/>
+      <elf-symbol name='cfg80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f769127'/>
+      <elf-symbol name='cfg80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10992361'/>
+      <elf-symbol name='cfg80211_roamed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5576f6d1'/>
+      <elf-symbol name='cfg80211_rx_mgmt_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22f60c81'/>
+      <elf-symbol name='cfg80211_rx_unprot_mlme_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf82df59'/>
+      <elf-symbol name='cfg80211_scan_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1dcd7d33'/>
+      <elf-symbol name='cfg80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc717787e'/>
+      <elf-symbol name='cfg80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52752d63'/>
+      <elf-symbol name='cfg80211_sched_scan_stopped_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x800cb07e'/>
+      <elf-symbol name='cfg80211_stop_iface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17db67ba'/>
+      <elf-symbol name='cfg80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72ad0a73'/>
+      <elf-symbol name='cfg80211_unlink_bss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1936da4'/>
+      <elf-symbol name='cfg80211_unregister_wdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeda0edd5'/>
+      <elf-symbol name='cfg80211_update_owe_info_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8db65a8e'/>
+      <elf-symbol name='cfg80211_vendor_cmd_reply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf848994c'/>
+      <elf-symbol name='class_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdae8a9'/>
+      <elf-symbol name='class_interface_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x716b65a0'/>
+      <elf-symbol name='class_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfffd791'/>
       <elf-symbol name='cleanup_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c909ed'/>
       <elf-symbol name='clear_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d9ee9f0'/>
       <elf-symbol name='clk_bulk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479f7d4b'/>
@@ -621,71 +621,71 @@
       <elf-symbol name='clk_bulk_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c08029'/>
       <elf-symbol name='clk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6e6d99d'/>
       <elf-symbol name='clk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x815588a6'/>
-      <elf-symbol name='clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97895721'/>
+      <elf-symbol name='clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4e78557'/>
       <elf-symbol name='clk_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63150e06'/>
       <elf-symbol name='clk_get_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x556e4390'/>
-      <elf-symbol name='clk_hw_get_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ff9312d'/>
-      <elf-symbol name='clk_hw_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e0f2f78'/>
-      <elf-symbol name='clk_hw_get_num_parents' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc787f72d'/>
-      <elf-symbol name='clk_hw_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26521648'/>
-      <elf-symbol name='clk_hw_get_parent_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9111ebe'/>
-      <elf-symbol name='clk_hw_get_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29d36816'/>
-      <elf-symbol name='clk_hw_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac3b4fe'/>
-      <elf-symbol name='clk_hw_is_prepared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77e6b761'/>
-      <elf-symbol name='clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32d05044'/>
-      <elf-symbol name='clk_hw_register_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1357df5a'/>
-      <elf-symbol name='clk_hw_round_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x754c9acd'/>
-      <elf-symbol name='clk_hw_set_rate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5a8f409'/>
-      <elf-symbol name='clk_hw_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5443fad'/>
-      <elf-symbol name='clk_hw_unregister_divider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99251d5e'/>
-      <elf-symbol name='clk_hw_unregister_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72bc0bcd'/>
-      <elf-symbol name='clk_hw_unregister_mux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f9023a4'/>
+      <elf-symbol name='clk_hw_get_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc49b65d8'/>
+      <elf-symbol name='clk_hw_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8eeab7ad'/>
+      <elf-symbol name='clk_hw_get_num_parents' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f951681'/>
+      <elf-symbol name='clk_hw_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0baf630'/>
+      <elf-symbol name='clk_hw_get_parent_by_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bd32278'/>
+      <elf-symbol name='clk_hw_get_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa783373f'/>
+      <elf-symbol name='clk_hw_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1adf99b4'/>
+      <elf-symbol name='clk_hw_is_prepared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4cb1bf7'/>
+      <elf-symbol name='clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a5b69d'/>
+      <elf-symbol name='clk_hw_register_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0f21dc2'/>
+      <elf-symbol name='clk_hw_round_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3022bd98'/>
+      <elf-symbol name='clk_hw_set_rate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x799a1b63'/>
+      <elf-symbol name='clk_hw_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27d0d611'/>
+      <elf-symbol name='clk_hw_unregister_divider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9b7fcf4'/>
+      <elf-symbol name='clk_hw_unregister_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x116feb6d'/>
+      <elf-symbol name='clk_hw_unregister_mux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11fc98a0'/>
       <elf-symbol name='clk_notifier_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60091316'/>
       <elf-symbol name='clk_notifier_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x719e17ff'/>
       <elf-symbol name='clk_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9a7371'/>
       <elf-symbol name='clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e1ca751'/>
-      <elf-symbol name='clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x624fcf05'/>
+      <elf-symbol name='clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd49ab1f8'/>
       <elf-symbol name='clk_register_clkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9822234'/>
-      <elf-symbol name='clk_register_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7c2c6ea'/>
-      <elf-symbol name='clk_register_fixed_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb387366d'/>
+      <elf-symbol name='clk_register_fixed_factor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7a86ab0'/>
+      <elf-symbol name='clk_register_fixed_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe33cc873'/>
       <elf-symbol name='clk_register_gate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92295424'/>
       <elf-symbol name='clk_round_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43f81957'/>
       <elf-symbol name='clk_set_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2396c7f0'/>
       <elf-symbol name='clk_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76d9b876'/>
-      <elf-symbol name='clk_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x285ed804'/>
+      <elf-symbol name='clk_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x500c836'/>
       <elf-symbol name='clk_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb077e70a'/>
       <elf-symbol name='clk_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7757b51a'/>
-      <elf-symbol name='clockevents_config_and_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11df07b4'/>
+      <elf-symbol name='clockevents_config_and_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8c1bf5e'/>
       <elf-symbol name='clocks_calc_mult_shift' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62bb09bf'/>
-      <elf-symbol name='close_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171b013e'/>
-      <elf-symbol name='cma_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3311dc19'/>
-      <elf-symbol name='cma_for_each_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec4a2a21'/>
-      <elf-symbol name='cma_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x287a30ac'/>
-      <elf-symbol name='cma_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cfece84'/>
-      <elf-symbol name='cma_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x334bbb4a'/>
+      <elf-symbol name='close_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa3b120f'/>
+      <elf-symbol name='cma_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c3fabf'/>
+      <elf-symbol name='cma_for_each_area' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6899fbe'/>
+      <elf-symbol name='cma_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ae4ec29'/>
+      <elf-symbol name='cma_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa143845c'/>
+      <elf-symbol name='cma_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46f92bc5'/>
       <elf-symbol name='compat_alloc_user_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbffde8ec'/>
-      <elf-symbol name='compat_ptr_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52a45d32'/>
+      <elf-symbol name='compat_ptr_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d331467'/>
       <elf-symbol name='complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6257a2f'/>
       <elf-symbol name='complete_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93d6dd8c'/>
       <elf-symbol name='complete_and_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26cc73c3'/>
       <elf-symbol name='completion_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddf6ad7a'/>
-      <elf-symbol name='component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c5f14c9'/>
-      <elf-symbol name='component_bind_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe937f5fa'/>
-      <elf-symbol name='component_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55bb940b'/>
-      <elf-symbol name='component_master_add_with_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7abe9fcf'/>
-      <elf-symbol name='component_master_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ea88f62'/>
-      <elf-symbol name='component_match_add_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b21a53b'/>
-      <elf-symbol name='component_unbind_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa046b38d'/>
-      <elf-symbol name='config_ep_by_speed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bd0db36'/>
-      <elf-symbol name='config_group_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a605ad3'/>
-      <elf-symbol name='config_group_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b5c1cda'/>
-      <elf-symbol name='config_item_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd007ad3f'/>
-      <elf-symbol name='config_item_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a9e611d'/>
-      <elf-symbol name='configfs_register_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68c4de9e'/>
-      <elf-symbol name='configfs_unregister_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea988bc8'/>
+      <elf-symbol name='component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x736d8f29'/>
+      <elf-symbol name='component_bind_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f14fe0b'/>
+      <elf-symbol name='component_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc41ee92f'/>
+      <elf-symbol name='component_master_add_with_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad15a66c'/>
+      <elf-symbol name='component_master_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d1e944a'/>
+      <elf-symbol name='component_match_add_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89d45e28'/>
+      <elf-symbol name='component_unbind_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef228735'/>
+      <elf-symbol name='config_ep_by_speed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9d7673'/>
+      <elf-symbol name='config_group_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x520842cc'/>
+      <elf-symbol name='config_group_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadc19ca'/>
+      <elf-symbol name='config_item_init_type_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f195478'/>
+      <elf-symbol name='config_item_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd333cd05'/>
+      <elf-symbol name='configfs_register_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4153a48c'/>
+      <elf-symbol name='configfs_unregister_subsystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x239b5d8'/>
       <elf-symbol name='console_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d04664'/>
       <elf-symbol name='console_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc631580a'/>
-      <elf-symbol name='consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb9e8dd8'/>
+      <elf-symbol name='consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66d98b47'/>
       <elf-symbol name='cpu_have_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41237f71'/>
       <elf-symbol name='cpu_latency_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x589e1a22'/>
       <elf-symbol name='cpu_latency_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3aaa15b2'/>
@@ -693,34 +693,34 @@
       <elf-symbol name='cpu_pm_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x444f1735'/>
       <elf-symbol name='cpu_pm_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f98d766'/>
       <elf-symbol name='cpufreq_add_update_util_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1403ad09'/>
-      <elf-symbol name='cpufreq_cpu_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6860819b'/>
-      <elf-symbol name='cpufreq_cpu_get_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81b1ddb7'/>
-      <elf-symbol name='cpufreq_cpu_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x886c7b78'/>
-      <elf-symbol name='cpufreq_disable_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb09a01a1'/>
-      <elf-symbol name='cpufreq_driver_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc73b173f'/>
-      <elf-symbol name='cpufreq_driver_resolve_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb9154c3'/>
-      <elf-symbol name='cpufreq_driver_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41569533'/>
+      <elf-symbol name='cpufreq_cpu_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x868da02c'/>
+      <elf-symbol name='cpufreq_cpu_get_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94f9c59d'/>
+      <elf-symbol name='cpufreq_cpu_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b771c1b'/>
+      <elf-symbol name='cpufreq_disable_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9ba8587'/>
+      <elf-symbol name='cpufreq_driver_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd4c1b5'/>
+      <elf-symbol name='cpufreq_driver_resolve_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9537fdb6'/>
+      <elf-symbol name='cpufreq_driver_target' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30ff05e4'/>
       <elf-symbol name='cpufreq_enable_boost_support' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30a5502'/>
-      <elf-symbol name='cpufreq_enable_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x624d602f'/>
-      <elf-symbol name='cpufreq_freq_transition_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68fec1d5'/>
-      <elf-symbol name='cpufreq_freq_transition_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dbe34cc'/>
+      <elf-symbol name='cpufreq_enable_fast_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdf8ed8f'/>
+      <elf-symbol name='cpufreq_freq_transition_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x128efb02'/>
+      <elf-symbol name='cpufreq_freq_transition_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x714eaced'/>
       <elf-symbol name='cpufreq_frequency_table_verify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec774acb'/>
       <elf-symbol name='cpufreq_generic_frequency_table_verify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc289e46d'/>
       <elf-symbol name='cpufreq_generic_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba2b7f64'/>
-      <elf-symbol name='cpufreq_generic_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5101582a'/>
+      <elf-symbol name='cpufreq_generic_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa350c0ab'/>
       <elf-symbol name='cpufreq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9305f8e6'/>
       <elf-symbol name='cpufreq_get_driver_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x553b49a4'/>
-      <elf-symbol name='cpufreq_get_policy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x558205f5'/>
-      <elf-symbol name='cpufreq_policy_transition_delay_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fb3fd1'/>
+      <elf-symbol name='cpufreq_get_policy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49c630bd'/>
+      <elf-symbol name='cpufreq_policy_transition_delay_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc186711'/>
       <elf-symbol name='cpufreq_quick_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c46233a'/>
       <elf-symbol name='cpufreq_quick_get_max' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33f0768c'/>
-      <elf-symbol name='cpufreq_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeda7233'/>
-      <elf-symbol name='cpufreq_register_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab27ed45'/>
+      <elf-symbol name='cpufreq_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a314123'/>
+      <elf-symbol name='cpufreq_register_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16ca673a'/>
       <elf-symbol name='cpufreq_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65d9e877'/>
       <elf-symbol name='cpufreq_remove_update_util_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3192d768'/>
-      <elf-symbol name='cpufreq_table_index_unsorted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ed12f2'/>
-      <elf-symbol name='cpufreq_this_cpu_can_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x784f84e0'/>
-      <elf-symbol name='cpufreq_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8658dd2'/>
+      <elf-symbol name='cpufreq_table_index_unsorted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ca30d11'/>
+      <elf-symbol name='cpufreq_this_cpu_can_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5628274a'/>
+      <elf-symbol name='cpufreq_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeeb9579a'/>
       <elf-symbol name='cpuidle_governor_latency_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc319717f'/>
       <elf-symbol name='cpuidle_pause_and_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf553318d'/>
       <elf-symbol name='cpuidle_resume_and_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcabe04de'/>
@@ -728,372 +728,372 @@
       <elf-symbol name='cpumask_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ad1db9'/>
       <elf-symbol name='cpumask_next_and' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4445ab21'/>
       <elf-symbol name='cpumask_next_wrap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x233eb8eb'/>
-      <elf-symbol name='cpupri_find_fitness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd52a1c9b'/>
+      <elf-symbol name='cpupri_find_fitness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbaab25f'/>
       <elf-symbol name='cpus_read_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04f945a'/>
       <elf-symbol name='cpus_read_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18fb2caf'/>
       <elf-symbol name='crc32_le' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69dd3b5b'/>
       <elf-symbol name='crc8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2aae5cc'/>
       <elf-symbol name='crc8_populate_msb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa8106bc'/>
-      <elf-symbol name='crypto_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x617f1963'/>
-      <elf-symbol name='crypto_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5c9b81b'/>
-      <elf-symbol name='crypto_aead_setauthsize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70fda164'/>
-      <elf-symbol name='crypto_aead_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86f04dd'/>
-      <elf-symbol name='crypto_ahash_finup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca842db7'/>
-      <elf-symbol name='crypto_ahash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5252ee41'/>
-      <elf-symbol name='crypto_alloc_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a651b87'/>
-      <elf-symbol name='crypto_alloc_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x423ff6df'/>
-      <elf-symbol name='crypto_alloc_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaccac105'/>
-      <elf-symbol name='crypto_alloc_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ed56155'/>
-      <elf-symbol name='crypto_alloc_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c3ff046'/>
-      <elf-symbol name='crypto_alloc_sync_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbac41307'/>
+      <elf-symbol name='crypto_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4297a9e8'/>
+      <elf-symbol name='crypto_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd06a3e8'/>
+      <elf-symbol name='crypto_aead_setauthsize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4e06a88'/>
+      <elf-symbol name='crypto_aead_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfde95d9d'/>
+      <elf-symbol name='crypto_ahash_finup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcce56cb8'/>
+      <elf-symbol name='crypto_ahash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c0c7c6'/>
+      <elf-symbol name='crypto_alloc_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a0d07e0'/>
+      <elf-symbol name='crypto_alloc_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x838f7d2c'/>
+      <elf-symbol name='crypto_alloc_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbeeee59'/>
+      <elf-symbol name='crypto_alloc_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb32a30be'/>
+      <elf-symbol name='crypto_alloc_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2ca08ae'/>
+      <elf-symbol name='crypto_alloc_sync_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdd551ba'/>
       <elf-symbol name='crypto_attr_alg_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a11a0fc'/>
       <elf-symbol name='crypto_check_attr_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4934bdd0'/>
-      <elf-symbol name='crypto_cipher_encrypt_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8636029'/>
-      <elf-symbol name='crypto_cipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd960d012'/>
-      <elf-symbol name='crypto_comp_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7c8c35a'/>
-      <elf-symbol name='crypto_comp_decompress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca6b505'/>
-      <elf-symbol name='crypto_destroy_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e49ad49'/>
-      <elf-symbol name='crypto_drop_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1716ec38'/>
-      <elf-symbol name='crypto_get_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3232f8ca'/>
-      <elf-symbol name='crypto_grab_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f433ad0'/>
-      <elf-symbol name='crypto_grab_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d1a0664'/>
-      <elf-symbol name='crypto_grab_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa58524fc'/>
-      <elf-symbol name='crypto_grab_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc220b29b'/>
-      <elf-symbol name='crypto_grab_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d5f7f2c'/>
+      <elf-symbol name='crypto_cipher_encrypt_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb55ee49'/>
+      <elf-symbol name='crypto_cipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x832362c2'/>
+      <elf-symbol name='crypto_comp_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d70ba1'/>
+      <elf-symbol name='crypto_comp_decompress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9617d71b'/>
+      <elf-symbol name='crypto_destroy_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2606b'/>
+      <elf-symbol name='crypto_drop_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf35f0324'/>
+      <elf-symbol name='crypto_get_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4014fa8d'/>
+      <elf-symbol name='crypto_grab_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8093d57'/>
+      <elf-symbol name='crypto_grab_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3e03610'/>
+      <elf-symbol name='crypto_grab_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c682c20'/>
+      <elf-symbol name='crypto_grab_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7e3b14f'/>
+      <elf-symbol name='crypto_grab_spawn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeaa61b1d'/>
       <elf-symbol name='crypto_has_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951a2773'/>
-      <elf-symbol name='crypto_inst_setname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16a8845b'/>
+      <elf-symbol name='crypto_inst_setname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bd9d528'/>
       <elf-symbol name='crypto_put_default_null_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21cd536a'/>
-      <elf-symbol name='crypto_register_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc010019'/>
-      <elf-symbol name='crypto_register_aeads' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14cc4060'/>
-      <elf-symbol name='crypto_register_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429cf632'/>
-      <elf-symbol name='crypto_register_ahashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c4aed31'/>
-      <elf-symbol name='crypto_register_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x833f6a9b'/>
-      <elf-symbol name='crypto_register_algs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6910d155'/>
+      <elf-symbol name='crypto_register_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31411dbd'/>
+      <elf-symbol name='crypto_register_aeads' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21dd2c7c'/>
+      <elf-symbol name='crypto_register_ahash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x996fb067'/>
+      <elf-symbol name='crypto_register_ahashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7b31d5e'/>
+      <elf-symbol name='crypto_register_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb648217'/>
+      <elf-symbol name='crypto_register_algs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25835782'/>
       <elf-symbol name='crypto_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9879932b'/>
-      <elf-symbol name='crypto_register_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8060860'/>
-      <elf-symbol name='crypto_register_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x903a8c93'/>
-      <elf-symbol name='crypto_register_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fcbfdee'/>
-      <elf-symbol name='crypto_register_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x427bf83c'/>
-      <elf-symbol name='crypto_register_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe418d562'/>
-      <elf-symbol name='crypto_register_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa37c8f2a'/>
-      <elf-symbol name='crypto_register_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x106e8712'/>
-      <elf-symbol name='crypto_register_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf65bac44'/>
-      <elf-symbol name='crypto_register_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe93201c6'/>
-      <elf-symbol name='crypto_remove_spawns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9db2f935'/>
-      <elf-symbol name='crypto_req_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31752a0d'/>
-      <elf-symbol name='crypto_rng_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71b456c7'/>
-      <elf-symbol name='crypto_shash_alg_has_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12cd8c56'/>
-      <elf-symbol name='crypto_shash_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a06e2ca'/>
-      <elf-symbol name='crypto_shash_final' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa7b75ff'/>
-      <elf-symbol name='crypto_shash_finup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe69b4a75'/>
-      <elf-symbol name='crypto_shash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c113d0c'/>
-      <elf-symbol name='crypto_shash_tfm_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec318a9'/>
-      <elf-symbol name='crypto_shash_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x280a4826'/>
-      <elf-symbol name='crypto_skcipher_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72e85757'/>
-      <elf-symbol name='crypto_skcipher_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32489a87'/>
-      <elf-symbol name='crypto_skcipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73c71b88'/>
-      <elf-symbol name='crypto_spawn_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95b8ff1d'/>
-      <elf-symbol name='crypto_spawn_tfm2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49fe8cf0'/>
-      <elf-symbol name='crypto_unregister_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb11bfa74'/>
-      <elf-symbol name='crypto_unregister_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb378f58e'/>
+      <elf-symbol name='crypto_register_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51978858'/>
+      <elf-symbol name='crypto_register_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5db54ea9'/>
+      <elf-symbol name='crypto_register_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe37c627b'/>
+      <elf-symbol name='crypto_register_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4d373fc'/>
+      <elf-symbol name='crypto_register_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe2a7c98'/>
+      <elf-symbol name='crypto_register_skcipher' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa528dd59'/>
+      <elf-symbol name='crypto_register_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddb74e1'/>
+      <elf-symbol name='crypto_register_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3ea1fe'/>
+      <elf-symbol name='crypto_register_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa60b6a93'/>
+      <elf-symbol name='crypto_remove_spawns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x787595e6'/>
+      <elf-symbol name='crypto_req_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb099863a'/>
+      <elf-symbol name='crypto_rng_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86a2ee9f'/>
+      <elf-symbol name='crypto_shash_alg_has_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6938d50a'/>
+      <elf-symbol name='crypto_shash_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc512a989'/>
+      <elf-symbol name='crypto_shash_final' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb801d9'/>
+      <elf-symbol name='crypto_shash_finup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cd1f5bb'/>
+      <elf-symbol name='crypto_shash_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed66b4d6'/>
+      <elf-symbol name='crypto_shash_tfm_digest' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec8008b9'/>
+      <elf-symbol name='crypto_shash_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa10672d8'/>
+      <elf-symbol name='crypto_skcipher_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x614641f9'/>
+      <elf-symbol name='crypto_skcipher_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd19c2c1'/>
+      <elf-symbol name='crypto_skcipher_setkey' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c481b74'/>
+      <elf-symbol name='crypto_spawn_tfm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x892ab25'/>
+      <elf-symbol name='crypto_spawn_tfm2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x225bc4e8'/>
+      <elf-symbol name='crypto_unregister_aead' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f32c9a4'/>
+      <elf-symbol name='crypto_unregister_alg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a1aa6b6'/>
       <elf-symbol name='crypto_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x710c73b6'/>
-      <elf-symbol name='crypto_unregister_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa04c78c3'/>
-      <elf-symbol name='crypto_unregister_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1a12f04'/>
-      <elf-symbol name='crypto_unregister_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x883b95dd'/>
-      <elf-symbol name='crypto_unregister_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90645ab4'/>
-      <elf-symbol name='crypto_unregister_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb547153d'/>
-      <elf-symbol name='crypto_unregister_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8fb3411'/>
-      <elf-symbol name='crypto_unregister_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d0cdab5'/>
-      <elf-symbol name='crypto_unregister_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6000437'/>
+      <elf-symbol name='crypto_unregister_rng' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ffb404c'/>
+      <elf-symbol name='crypto_unregister_rngs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f8287d2'/>
+      <elf-symbol name='crypto_unregister_scomp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18f5579c'/>
+      <elf-symbol name='crypto_unregister_shash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3b36f1e'/>
+      <elf-symbol name='crypto_unregister_shashes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d66b4bf'/>
+      <elf-symbol name='crypto_unregister_skciphers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4608b693'/>
+      <elf-symbol name='crypto_unregister_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe280c14b'/>
+      <elf-symbol name='crypto_unregister_templates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6f19b54'/>
       <elf-symbol name='csum_ipv6_magic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d65cbd5'/>
       <elf-symbol name='csum_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe113bbbc'/>
       <elf-symbol name='csum_tcpudp_nofold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd25bc5d4'/>
-      <elf-symbol name='current_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb5301d7'/>
+      <elf-symbol name='current_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29287397'/>
       <elf-symbol name='current_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd75ee543'/>
-      <elf-symbol name='d_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbabfe1b'/>
-      <elf-symbol name='d_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383bd26'/>
-      <elf-symbol name='d_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc499dcbd'/>
-      <elf-symbol name='d_make_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x931b832d'/>
-      <elf-symbol name='datagram_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa39b328b'/>
-      <elf-symbol name='debugfs_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63b7c596'/>
-      <elf-symbol name='debugfs_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13e17040'/>
-      <elf-symbol name='debugfs_create_atomic_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb22eecb'/>
-      <elf-symbol name='debugfs_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2c050b'/>
-      <elf-symbol name='debugfs_create_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6468c409'/>
-      <elf-symbol name='debugfs_create_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b440841'/>
-      <elf-symbol name='debugfs_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2552882'/>
-      <elf-symbol name='debugfs_create_file_unsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76fb7f4c'/>
-      <elf-symbol name='debugfs_create_size_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb72809d5'/>
-      <elf-symbol name='debugfs_create_u16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2861ea26'/>
-      <elf-symbol name='debugfs_create_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597c2901'/>
-      <elf-symbol name='debugfs_create_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1be3a523'/>
-      <elf-symbol name='debugfs_create_u8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f416b69'/>
-      <elf-symbol name='debugfs_create_x32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x889e493e'/>
-      <elf-symbol name='debugfs_create_x64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca01c51c'/>
-      <elf-symbol name='debugfs_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea0e441c'/>
-      <elf-symbol name='debugfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82d37f62'/>
-      <elf-symbol name='dec_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb96e01f3'/>
-      <elf-symbol name='default_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54f363cf'/>
+      <elf-symbol name='d_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15a195c0'/>
+      <elf-symbol name='d_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c6f23d2'/>
+      <elf-symbol name='d_delete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf74e40d'/>
+      <elf-symbol name='d_make_root' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa00f473c'/>
+      <elf-symbol name='datagram_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3542737'/>
+      <elf-symbol name='debugfs_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc975300d'/>
+      <elf-symbol name='debugfs_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28ae9db8'/>
+      <elf-symbol name='debugfs_create_atomic_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7a5cbe'/>
+      <elf-symbol name='debugfs_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2b56d32'/>
+      <elf-symbol name='debugfs_create_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xada69ce6'/>
+      <elf-symbol name='debugfs_create_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cf795'/>
+      <elf-symbol name='debugfs_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x685fd899'/>
+      <elf-symbol name='debugfs_create_file_unsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ecf183e'/>
+      <elf-symbol name='debugfs_create_size_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1117a511'/>
+      <elf-symbol name='debugfs_create_u16' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x806cb34e'/>
+      <elf-symbol name='debugfs_create_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7b4491e'/>
+      <elf-symbol name='debugfs_create_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x294895e4'/>
+      <elf-symbol name='debugfs_create_u8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee9adc95'/>
+      <elf-symbol name='debugfs_create_x32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71508598'/>
+      <elf-symbol name='debugfs_create_x64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefac5962'/>
+      <elf-symbol name='debugfs_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5876c15a'/>
+      <elf-symbol name='debugfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7169efe'/>
+      <elf-symbol name='dec_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee2c537d'/>
+      <elf-symbol name='default_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f3f434b'/>
       <elf-symbol name='deferred_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe730994c'/>
-      <elf-symbol name='del_gendisk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7db3b2f3'/>
-      <elf-symbol name='del_random_ready_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf813e57'/>
+      <elf-symbol name='del_gendisk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70e6af2e'/>
+      <elf-symbol name='del_random_ready_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ccf04ae'/>
       <elf-symbol name='del_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa4008af'/>
       <elf-symbol name='del_timer_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf15e728e'/>
       <elf-symbol name='delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253af43d'/>
-      <elf-symbol name='desc_to_gpio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cbb5bfb'/>
+      <elf-symbol name='desc_to_gpio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8662689'/>
       <elf-symbol name='destroy_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c03d20c'/>
-      <elf-symbol name='dev_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x303c518a'/>
-      <elf-symbol name='dev_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88319077'/>
-      <elf-symbol name='dev_coredumpm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86552fa9'/>
-      <elf-symbol name='dev_coredumpv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb29dbd9'/>
-      <elf-symbol name='dev_driver_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x951d005e'/>
-      <elf-symbol name='dev_err_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51fde028'/>
-      <elf-symbol name='dev_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25a2d727'/>
-      <elf-symbol name='dev_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65339256'/>
-      <elf-symbol name='dev_get_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6cce78a5'/>
-      <elf-symbol name='dev_get_stats' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45e8d2f0'/>
-      <elf-symbol name='dev_mc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc559c461'/>
-      <elf-symbol name='dev_mc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b86cde'/>
-      <elf-symbol name='dev_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eb341f5'/>
-      <elf-symbol name='dev_pm_clear_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc69b5888'/>
-      <elf-symbol name='dev_pm_domain_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee43354d'/>
-      <elf-symbol name='dev_pm_domain_attach_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39c660ec'/>
-      <elf-symbol name='dev_pm_domain_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62b58487'/>
-      <elf-symbol name='dev_pm_genpd_set_performance_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4056ade'/>
-      <elf-symbol name='dev_pm_opp_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72fa3ef7'/>
-      <elf-symbol name='dev_pm_opp_adjust_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d37e43e'/>
-      <elf-symbol name='dev_pm_opp_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23d704e7'/>
-      <elf-symbol name='dev_pm_opp_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa676cba5'/>
-      <elf-symbol name='dev_pm_opp_find_freq_ceil' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3cf109'/>
-      <elf-symbol name='dev_pm_opp_find_freq_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9d52f'/>
-      <elf-symbol name='dev_pm_opp_find_freq_floor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b01666e'/>
-      <elf-symbol name='dev_pm_opp_free_cpufreq_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e05a71f'/>
-      <elf-symbol name='dev_pm_opp_get_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2aa3414f'/>
-      <elf-symbol name='dev_pm_opp_get_level' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb87fbb3'/>
-      <elf-symbol name='dev_pm_opp_get_max_transition_latency' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb3db739'/>
-      <elf-symbol name='dev_pm_opp_get_opp_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd80838ad'/>
-      <elf-symbol name='dev_pm_opp_get_opp_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4747ab7e'/>
-      <elf-symbol name='dev_pm_opp_get_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a7ba270'/>
-      <elf-symbol name='dev_pm_opp_get_suspend_opp_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58850e03'/>
-      <elf-symbol name='dev_pm_opp_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6293bed4'/>
-      <elf-symbol name='dev_pm_opp_init_cpufreq_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb39ff093'/>
-      <elf-symbol name='dev_pm_opp_of_add_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc59c3f0b'/>
+      <elf-symbol name='dev_alloc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1393da9d'/>
+      <elf-symbol name='dev_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd22c78a7'/>
+      <elf-symbol name='dev_coredumpm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1c6e749'/>
+      <elf-symbol name='dev_coredumpv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6756c473'/>
+      <elf-symbol name='dev_driver_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee6f7962'/>
+      <elf-symbol name='dev_err_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf262fa3'/>
+      <elf-symbol name='dev_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e2cc5c2'/>
+      <elf-symbol name='dev_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b65c74b'/>
+      <elf-symbol name='dev_get_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2f555f0'/>
+      <elf-symbol name='dev_get_stats' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79e488fd'/>
+      <elf-symbol name='dev_mc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2ce6ed6'/>
+      <elf-symbol name='dev_mc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b377bc'/>
+      <elf-symbol name='dev_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76918487'/>
+      <elf-symbol name='dev_pm_clear_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf7f8369'/>
+      <elf-symbol name='dev_pm_domain_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x861104fb'/>
+      <elf-symbol name='dev_pm_domain_attach_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe8c74f4'/>
+      <elf-symbol name='dev_pm_domain_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b086807'/>
+      <elf-symbol name='dev_pm_genpd_set_performance_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c2f5d04'/>
+      <elf-symbol name='dev_pm_opp_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8805751'/>
+      <elf-symbol name='dev_pm_opp_adjust_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50871ca'/>
+      <elf-symbol name='dev_pm_opp_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cad9432'/>
+      <elf-symbol name='dev_pm_opp_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd427a1cf'/>
+      <elf-symbol name='dev_pm_opp_find_freq_ceil' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced8cbbf'/>
+      <elf-symbol name='dev_pm_opp_find_freq_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c50d704'/>
+      <elf-symbol name='dev_pm_opp_find_freq_floor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x492694ed'/>
+      <elf-symbol name='dev_pm_opp_free_cpufreq_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbf281fc'/>
+      <elf-symbol name='dev_pm_opp_get_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa394dd18'/>
+      <elf-symbol name='dev_pm_opp_get_level' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5398fb'/>
+      <elf-symbol name='dev_pm_opp_get_max_transition_latency' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66a5f6a5'/>
+      <elf-symbol name='dev_pm_opp_get_opp_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd7898ac'/>
+      <elf-symbol name='dev_pm_opp_get_opp_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2127230b'/>
+      <elf-symbol name='dev_pm_opp_get_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa324e14'/>
+      <elf-symbol name='dev_pm_opp_get_suspend_opp_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x673c8a38'/>
+      <elf-symbol name='dev_pm_opp_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24d0ff0c'/>
+      <elf-symbol name='dev_pm_opp_init_cpufreq_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1776ff1f'/>
+      <elf-symbol name='dev_pm_opp_of_add_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25298611'/>
       <elf-symbol name='dev_pm_opp_of_cpumask_add_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cf281e7'/>
       <elf-symbol name='dev_pm_opp_of_cpumask_remove_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ded56d3'/>
-      <elf-symbol name='dev_pm_opp_of_find_icc_paths' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76278be0'/>
-      <elf-symbol name='dev_pm_opp_of_get_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa21afc5c'/>
-      <elf-symbol name='dev_pm_opp_of_register_em' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67a108ab'/>
-      <elf-symbol name='dev_pm_opp_of_remove_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fc1de96'/>
-      <elf-symbol name='dev_pm_opp_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa911810a'/>
-      <elf-symbol name='dev_pm_opp_put_clkname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c06715c'/>
-      <elf-symbol name='dev_pm_opp_put_opp_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0789530'/>
-      <elf-symbol name='dev_pm_opp_put_regulators' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90581d7e'/>
-      <elf-symbol name='dev_pm_opp_remove_all_dynamic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdef13dea'/>
-      <elf-symbol name='dev_pm_opp_set_bw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8c4268a'/>
-      <elf-symbol name='dev_pm_opp_set_clkname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe678f8c1'/>
-      <elf-symbol name='dev_pm_opp_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f0d0a53'/>
-      <elf-symbol name='dev_pm_opp_set_regulators' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f4a82c6'/>
-      <elf-symbol name='dev_pm_opp_set_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c65bc94'/>
-      <elf-symbol name='dev_pm_opp_set_supported_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf9c5511'/>
-      <elf-symbol name='dev_pm_qos_add_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3397d365'/>
-      <elf-symbol name='dev_pm_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0c4bc07'/>
-      <elf-symbol name='dev_pm_qos_expose_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe066955e'/>
-      <elf-symbol name='dev_pm_qos_hide_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e3ac427'/>
-      <elf-symbol name='dev_pm_qos_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e228a6a'/>
-      <elf-symbol name='dev_pm_qos_remove_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e7eaaa0'/>
-      <elf-symbol name='dev_pm_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74ff26e9'/>
-      <elf-symbol name='dev_pm_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0c4e1c4'/>
-      <elf-symbol name='dev_pm_qos_update_user_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x180cf516'/>
-      <elf-symbol name='dev_pm_set_dedicated_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x660f9121'/>
-      <elf-symbol name='dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45751c11'/>
-      <elf-symbol name='dev_printk_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10f11399'/>
-      <elf-symbol name='dev_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2facd5c9'/>
-      <elf-symbol name='dev_set_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf961a6e'/>
-      <elf-symbol name='dev_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bf85a1c'/>
-      <elf-symbol name='dev_uc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe78300ae'/>
-      <elf-symbol name='dev_uc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24821c2a'/>
-      <elf-symbol name='devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd5efe81'/>
-      <elf-symbol name='devfreq_add_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x822ee5fc'/>
-      <elf-symbol name='devfreq_cooling_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f718b4b'/>
-      <elf-symbol name='devfreq_monitor_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0fe62e9'/>
-      <elf-symbol name='devfreq_monitor_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffa2e3d3'/>
-      <elf-symbol name='devfreq_monitor_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6207ea'/>
-      <elf-symbol name='devfreq_monitor_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd92588b4'/>
-      <elf-symbol name='devfreq_recommended_opp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x566e0b8b'/>
-      <elf-symbol name='devfreq_register_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x396bea05'/>
-      <elf-symbol name='devfreq_remove_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e6f9015'/>
-      <elf-symbol name='devfreq_resume_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbf77acc'/>
-      <elf-symbol name='devfreq_suspend_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc7d86aa'/>
-      <elf-symbol name='devfreq_unregister_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df99458'/>
-      <elf-symbol name='devfreq_update_interval' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb3ecbef'/>
-      <elf-symbol name='device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67eb5992'/>
-      <elf-symbol name='device_add_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb21108'/>
-      <elf-symbol name='device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xede6cb61'/>
-      <elf-symbol name='device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f72f0ae'/>
-      <elf-symbol name='device_bind_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbc4df26'/>
-      <elf-symbol name='device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a0d51d1'/>
-      <elf-symbol name='device_create_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7400e712'/>
-      <elf-symbol name='device_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf12801de'/>
-      <elf-symbol name='device_create_with_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5345fb8'/>
-      <elf-symbol name='device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecec0188'/>
-      <elf-symbol name='device_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d0b2ce'/>
-      <elf-symbol name='device_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb67ae03a'/>
-      <elf-symbol name='device_for_each_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddd66619'/>
-      <elf-symbol name='device_get_child_node_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56bd2044'/>
-      <elf-symbol name='device_get_dma_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee94c46b'/>
-      <elf-symbol name='device_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda2b29cf'/>
-      <elf-symbol name='device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2736558f'/>
-      <elf-symbol name='device_get_named_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96ce76ed'/>
-      <elf-symbol name='device_get_next_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd098536e'/>
-      <elf-symbol name='device_init_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae7a86a6'/>
-      <elf-symbol name='device_initialize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x319cedc1'/>
-      <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d163a52'/>
-      <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3593685'/>
-      <elf-symbol name='device_match_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x636e87d0'/>
-      <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x680b8786'/>
-      <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x257d03e0'/>
-      <elf-symbol name='device_property_read_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d13279'/>
-      <elf-symbol name='device_property_read_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fa4da5c'/>
-      <elf-symbol name='device_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacbb708b'/>
-      <elf-symbol name='device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9289768b'/>
-      <elf-symbol name='device_release_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x454440f1'/>
-      <elf-symbol name='device_remove_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x119d293e'/>
-      <elf-symbol name='device_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff15d7a4'/>
-      <elf-symbol name='device_remove_file_self' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c6da9b7'/>
-      <elf-symbol name='device_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26d23177'/>
-      <elf-symbol name='device_set_wakeup_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9708e35'/>
-      <elf-symbol name='device_set_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9335c84a'/>
-      <elf-symbol name='device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18799114'/>
-      <elf-symbol name='device_wakeup_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f6e2b61'/>
-      <elf-symbol name='device_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37662541'/>
-      <elf-symbol name='devm_add_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfc65577'/>
-      <elf-symbol name='devm_backlight_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x144ca657'/>
-      <elf-symbol name='devm_backlight_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x219e9644'/>
-      <elf-symbol name='devm_blk_ksm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e91cde5'/>
-      <elf-symbol name='devm_clk_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91a66625'/>
-      <elf-symbol name='devm_clk_bulk_get_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d9a55cd'/>
-      <elf-symbol name='devm_clk_bulk_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b3df91'/>
-      <elf-symbol name='devm_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70370712'/>
-      <elf-symbol name='devm_clk_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77de043f'/>
-      <elf-symbol name='devm_clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237ae111'/>
-      <elf-symbol name='devm_clk_hw_register_clkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7371abef'/>
-      <elf-symbol name='devm_clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb653fedc'/>
-      <elf-symbol name='devm_clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9cbd89b'/>
-      <elf-symbol name='devm_devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd42634'/>
-      <elf-symbol name='devm_device_add_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd21cbc2b'/>
-      <elf-symbol name='devm_device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57a718fc'/>
-      <elf-symbol name='devm_device_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0180cd9'/>
-      <elf-symbol name='devm_drm_panel_bridge_add_typed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58b631d3'/>
-      <elf-symbol name='devm_extcon_dev_allocate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa94b1073'/>
-      <elf-symbol name='devm_extcon_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7f22760'/>
-      <elf-symbol name='devm_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6664e2fa'/>
-      <elf-symbol name='devm_fwnode_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d3cb5f1'/>
-      <elf-symbol name='devm_gen_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cdf9951'/>
-      <elf-symbol name='devm_get_clk_from_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd076b28'/>
-      <elf-symbol name='devm_gpio_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1dd2fd2'/>
-      <elf-symbol name='devm_gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e2badb5'/>
-      <elf-symbol name='devm_gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc352fb3a'/>
-      <elf-symbol name='devm_gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98731f1f'/>
-      <elf-symbol name='devm_gpiod_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee14258a'/>
-      <elf-symbol name='devm_gpiod_get_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eb77c3b'/>
-      <elf-symbol name='devm_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf99d3032'/>
-      <elf-symbol name='devm_gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85864be0'/>
-      <elf-symbol name='devm_gpiod_put_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69bb59f'/>
-      <elf-symbol name='devm_hwspin_lock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde191b21'/>
-      <elf-symbol name='devm_i2c_new_dummy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x429040e2'/>
-      <elf-symbol name='devm_iio_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb31e6e32'/>
-      <elf-symbol name='devm_input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70a24c88'/>
-      <elf-symbol name='devm_ioremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe805760'/>
-      <elf-symbol name='devm_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73706e1e'/>
-      <elf-symbol name='devm_ioremap_wc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a54a47e'/>
-      <elf-symbol name='devm_iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae9ac9c8'/>
-      <elf-symbol name='devm_kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b66ebee'/>
-      <elf-symbol name='devm_kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f424ee3'/>
-      <elf-symbol name='devm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545a9955'/>
-      <elf-symbol name='devm_kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bb4b192'/>
-      <elf-symbol name='devm_kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6756163c'/>
-      <elf-symbol name='devm_kstrdup_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dd9eee6'/>
-      <elf-symbol name='devm_kvasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c5b57bb'/>
-      <elf-symbol name='devm_led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee6418c3'/>
-      <elf-symbol name='devm_mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecc95eaa'/>
-      <elf-symbol name='devm_memremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af2c0a3'/>
-      <elf-symbol name='devm_memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7793382e'/>
-      <elf-symbol name='devm_mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ab4ba3'/>
-      <elf-symbol name='devm_nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9db71a0b'/>
-      <elf-symbol name='devm_nvmem_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99e07ee7'/>
-      <elf-symbol name='devm_of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17ec42ae'/>
-      <elf-symbol name='devm_of_icc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb413b74a'/>
-      <elf-symbol name='devm_of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca26aef2'/>
-      <elf-symbol name='devm_of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2457c44'/>
-      <elf-symbol name='devm_phy_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b4effaa'/>
-      <elf-symbol name='devm_phy_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe01580b4'/>
-      <elf-symbol name='devm_phy_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf5379b0'/>
-      <elf-symbol name='devm_pinctrl_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15c778e6'/>
-      <elf-symbol name='devm_pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa260c858'/>
-      <elf-symbol name='devm_pinctrl_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e523e5e'/>
-      <elf-symbol name='devm_pinctrl_register_and_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70fc59bd'/>
-      <elf-symbol name='devm_platform_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefd61ad6'/>
-      <elf-symbol name='devm_platform_ioremap_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x508bac4f'/>
-      <elf-symbol name='devm_power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36ea075a'/>
-      <elf-symbol name='devm_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf86f23ae'/>
-      <elf-symbol name='devm_regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c300146'/>
-      <elf-symbol name='devm_regmap_field_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa89e9493'/>
-      <elf-symbol name='devm_regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d8e7b21'/>
-      <elf-symbol name='devm_regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5109386'/>
-      <elf-symbol name='devm_regulator_get_exclusive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68177c1d'/>
-      <elf-symbol name='devm_regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x553ad590'/>
-      <elf-symbol name='devm_regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cb99b97'/>
-      <elf-symbol name='devm_regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51210ee9'/>
-      <elf-symbol name='devm_request_any_context_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x780570ab'/>
-      <elf-symbol name='devm_request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc54b3ad'/>
-      <elf-symbol name='devm_reset_control_array_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ba92bb9'/>
-      <elf-symbol name='devm_reset_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d5d13e2'/>
-      <elf-symbol name='devm_rtc_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54669b79'/>
-      <elf-symbol name='devm_rtc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3cb8ecf'/>
-      <elf-symbol name='devm_snd_dmaengine_pcm_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cf7ccfa'/>
-      <elf-symbol name='devm_snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7596c1f'/>
-      <elf-symbol name='devm_snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed5149a'/>
-      <elf-symbol name='devm_spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd54534a'/>
-      <elf-symbol name='devm_thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6d26b08'/>
-      <elf-symbol name='devm_thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1b583b5'/>
-      <elf-symbol name='devm_thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47f25af7'/>
-      <elf-symbol name='devm_usb_get_phy_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe47b07a'/>
-      <elf-symbol name='devm_watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78172947'/>
-      <elf-symbol name='devres_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bcc9edf'/>
-      <elf-symbol name='devres_alloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3eec7b0'/>
+      <elf-symbol name='dev_pm_opp_of_find_icc_paths' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1b0cd5f'/>
+      <elf-symbol name='dev_pm_opp_of_get_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x288b7076'/>
+      <elf-symbol name='dev_pm_opp_of_register_em' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ff277e2'/>
+      <elf-symbol name='dev_pm_opp_of_remove_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9065c91b'/>
+      <elf-symbol name='dev_pm_opp_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5eff07db'/>
+      <elf-symbol name='dev_pm_opp_put_clkname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68778064'/>
+      <elf-symbol name='dev_pm_opp_put_opp_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ae81cc2'/>
+      <elf-symbol name='dev_pm_opp_put_regulators' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61810445'/>
+      <elf-symbol name='dev_pm_opp_remove_all_dynamic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26067b5f'/>
+      <elf-symbol name='dev_pm_opp_set_bw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22691adf'/>
+      <elf-symbol name='dev_pm_opp_set_clkname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab45cc47'/>
+      <elf-symbol name='dev_pm_opp_set_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x770c822c'/>
+      <elf-symbol name='dev_pm_opp_set_regulators' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57e3b035'/>
+      <elf-symbol name='dev_pm_opp_set_sharing_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3fc9d6'/>
+      <elf-symbol name='dev_pm_opp_set_supported_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac64094a'/>
+      <elf-symbol name='dev_pm_qos_add_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e021cc7'/>
+      <elf-symbol name='dev_pm_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57f82bad'/>
+      <elf-symbol name='dev_pm_qos_expose_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86cb742b'/>
+      <elf-symbol name='dev_pm_qos_hide_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90100c5a'/>
+      <elf-symbol name='dev_pm_qos_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90006374'/>
+      <elf-symbol name='dev_pm_qos_remove_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe865d8be'/>
+      <elf-symbol name='dev_pm_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae3fa166'/>
+      <elf-symbol name='dev_pm_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a403217'/>
+      <elf-symbol name='dev_pm_qos_update_user_latency_tolerance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7b424dc'/>
+      <elf-symbol name='dev_pm_set_dedicated_wake_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a608818'/>
+      <elf-symbol name='dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22adc302'/>
+      <elf-symbol name='dev_printk_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63c6350b'/>
+      <elf-symbol name='dev_queue_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6a122c2'/>
+      <elf-symbol name='dev_set_mtu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f9f2fb8'/>
+      <elf-symbol name='dev_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5b793bc'/>
+      <elf-symbol name='dev_uc_sync_multiple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda2920ec'/>
+      <elf-symbol name='dev_uc_unsync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5104a6c8'/>
+      <elf-symbol name='devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f362bed'/>
+      <elf-symbol name='devfreq_add_governor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x261f5add'/>
+      <elf-symbol name='devfreq_cooling_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71747ab9'/>
+      <elf-symbol name='devfreq_monitor_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3f4d5bd'/>
+      <elf-symbol name='devfreq_monitor_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x444e125b'/>
+      <elf-symbol name='devfreq_monitor_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6329cf27'/>
+      <elf-symbol name='devfreq_monitor_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6a5347c'/>
+      <elf-symbol name='devfreq_recommended_opp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4fef99b'/>
+      <elf-symbol name='devfreq_register_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ad171ad'/>
+      <elf-symbol name='devfreq_remove_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd10cf33b'/>
+      <elf-symbol name='devfreq_resume_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5311ab8'/>
+      <elf-symbol name='devfreq_suspend_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe246953c'/>
+      <elf-symbol name='devfreq_unregister_opp_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x766387d4'/>
+      <elf-symbol name='devfreq_update_interval' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe95c4ef'/>
+      <elf-symbol name='device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6984b77a'/>
+      <elf-symbol name='device_add_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf01e8aed'/>
+      <elf-symbol name='device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x707430e'/>
+      <elf-symbol name='device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5be0157'/>
+      <elf-symbol name='device_bind_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a23daed'/>
+      <elf-symbol name='device_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c778189'/>
+      <elf-symbol name='device_create_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5bfbe41'/>
+      <elf-symbol name='device_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x248706f5'/>
+      <elf-symbol name='device_create_with_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9dc28e4'/>
+      <elf-symbol name='device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22677679'/>
+      <elf-symbol name='device_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd54e0e3a'/>
+      <elf-symbol name='device_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf49bc565'/>
+      <elf-symbol name='device_for_each_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5467e92'/>
+      <elf-symbol name='device_get_child_node_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc251f92d'/>
+      <elf-symbol name='device_get_dma_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d3a726d'/>
+      <elf-symbol name='device_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49fb60e1'/>
+      <elf-symbol name='device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73234090'/>
+      <elf-symbol name='device_get_named_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d98bf89'/>
+      <elf-symbol name='device_get_next_child_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c02efbb'/>
+      <elf-symbol name='device_init_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc05d3310'/>
+      <elf-symbol name='device_initialize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96ce39fc'/>
+      <elf-symbol name='device_link_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac2c21b6'/>
+      <elf-symbol name='device_link_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1017afa6'/>
+      <elf-symbol name='device_match_fwnode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dc8bbde'/>
+      <elf-symbol name='device_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91d9d279'/>
+      <elf-symbol name='device_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58adfb31'/>
+      <elf-symbol name='device_property_read_string_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe42f97a6'/>
+      <elf-symbol name='device_property_read_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x457a9ef3'/>
+      <elf-symbol name='device_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8845cd6'/>
+      <elf-symbol name='device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e54dbf4'/>
+      <elf-symbol name='device_release_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45daf495'/>
+      <elf-symbol name='device_remove_bin_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xece0a1fa'/>
+      <elf-symbol name='device_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81490434'/>
+      <elf-symbol name='device_remove_file_self' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72c56908'/>
+      <elf-symbol name='device_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15ac5bc4'/>
+      <elf-symbol name='device_set_wakeup_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x896e4e1a'/>
+      <elf-symbol name='device_set_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb621ed7e'/>
+      <elf-symbol name='device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27cbf779'/>
+      <elf-symbol name='device_wakeup_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x481edb6e'/>
+      <elf-symbol name='device_wakeup_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa501ffba'/>
+      <elf-symbol name='devm_add_action' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2ca6fe5'/>
+      <elf-symbol name='devm_backlight_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe353142a'/>
+      <elf-symbol name='devm_backlight_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7081cf21'/>
+      <elf-symbol name='devm_blk_ksm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36e0568'/>
+      <elf-symbol name='devm_clk_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32ab1a8d'/>
+      <elf-symbol name='devm_clk_bulk_get_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc66dd445'/>
+      <elf-symbol name='devm_clk_bulk_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5383cb36'/>
+      <elf-symbol name='devm_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa08c4b35'/>
+      <elf-symbol name='devm_clk_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62155570'/>
+      <elf-symbol name='devm_clk_hw_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x925ab247'/>
+      <elf-symbol name='devm_clk_hw_register_clkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3308da70'/>
+      <elf-symbol name='devm_clk_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb31bdaed'/>
+      <elf-symbol name='devm_clk_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd41fae2e'/>
+      <elf-symbol name='devm_devfreq_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fed9582'/>
+      <elf-symbol name='devm_device_add_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x409f253b'/>
+      <elf-symbol name='devm_device_add_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545bfbb5'/>
+      <elf-symbol name='devm_device_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd305cf93'/>
+      <elf-symbol name='devm_drm_panel_bridge_add_typed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bce0c0a'/>
+      <elf-symbol name='devm_extcon_dev_allocate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38cf3eaa'/>
+      <elf-symbol name='devm_extcon_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2455c07e'/>
+      <elf-symbol name='devm_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8bdf7a8'/>
+      <elf-symbol name='devm_fwnode_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2a72d2'/>
+      <elf-symbol name='devm_gen_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb675cbed'/>
+      <elf-symbol name='devm_get_clk_from_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54025c32'/>
+      <elf-symbol name='devm_gpio_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bf88931'/>
+      <elf-symbol name='devm_gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcf54a6d'/>
+      <elf-symbol name='devm_gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeedcbcc2'/>
+      <elf-symbol name='devm_gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5317169'/>
+      <elf-symbol name='devm_gpiod_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x374ba21'/>
+      <elf-symbol name='devm_gpiod_get_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa961490'/>
+      <elf-symbol name='devm_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2425e3f2'/>
+      <elf-symbol name='devm_gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34bbb535'/>
+      <elf-symbol name='devm_gpiod_put_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2c705c'/>
+      <elf-symbol name='devm_hwspin_lock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1390ebea'/>
+      <elf-symbol name='devm_i2c_new_dummy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dd76c18'/>
+      <elf-symbol name='devm_iio_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75c9a4bc'/>
+      <elf-symbol name='devm_input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89ba15eb'/>
+      <elf-symbol name='devm_ioremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3859c031'/>
+      <elf-symbol name='devm_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9f79138'/>
+      <elf-symbol name='devm_ioremap_wc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd3aceb7'/>
+      <elf-symbol name='devm_iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95b28a25'/>
+      <elf-symbol name='devm_kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x273671d'/>
+      <elf-symbol name='devm_kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb249514'/>
+      <elf-symbol name='devm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4415af5a'/>
+      <elf-symbol name='devm_kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f3d3e93'/>
+      <elf-symbol name='devm_kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b0a6bbc'/>
+      <elf-symbol name='devm_kstrdup_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba90ef13'/>
+      <elf-symbol name='devm_kvasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x127dba4d'/>
+      <elf-symbol name='devm_led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d5d6ce7'/>
+      <elf-symbol name='devm_mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75695ff3'/>
+      <elf-symbol name='devm_memremap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c12e52b'/>
+      <elf-symbol name='devm_memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69a2bfd3'/>
+      <elf-symbol name='devm_mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ec55681'/>
+      <elf-symbol name='devm_nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bdb2d4'/>
+      <elf-symbol name='devm_nvmem_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x198d6fb'/>
+      <elf-symbol name='devm_of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x345afc6'/>
+      <elf-symbol name='devm_of_icc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x627baa66'/>
+      <elf-symbol name='devm_of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce692cdd'/>
+      <elf-symbol name='devm_of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe92e187e'/>
+      <elf-symbol name='devm_phy_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f7f5e60'/>
+      <elf-symbol name='devm_phy_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd627b470'/>
+      <elf-symbol name='devm_phy_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4eda1e59'/>
+      <elf-symbol name='devm_pinctrl_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72cae450'/>
+      <elf-symbol name='devm_pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6a68389'/>
+      <elf-symbol name='devm_pinctrl_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4e0877'/>
+      <elf-symbol name='devm_pinctrl_register_and_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff0c48e5'/>
+      <elf-symbol name='devm_platform_ioremap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9787912a'/>
+      <elf-symbol name='devm_platform_ioremap_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ee1e598'/>
+      <elf-symbol name='devm_power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20c863f8'/>
+      <elf-symbol name='devm_pwm_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe95b6dc7'/>
+      <elf-symbol name='devm_regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40f79fdc'/>
+      <elf-symbol name='devm_regmap_field_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x432ba0a7'/>
+      <elf-symbol name='devm_regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56be3861'/>
+      <elf-symbol name='devm_regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89382d44'/>
+      <elf-symbol name='devm_regulator_get_exclusive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1ab0f4b'/>
+      <elf-symbol name='devm_regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f9d8ae6'/>
+      <elf-symbol name='devm_regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcde6ba08'/>
+      <elf-symbol name='devm_regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x233627e0'/>
+      <elf-symbol name='devm_request_any_context_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef7147cc'/>
+      <elf-symbol name='devm_request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12e8a61e'/>
+      <elf-symbol name='devm_reset_control_array_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5218b7d5'/>
+      <elf-symbol name='devm_reset_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4ca1bd9'/>
+      <elf-symbol name='devm_rtc_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd80e61ce'/>
+      <elf-symbol name='devm_rtc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc4c77df'/>
+      <elf-symbol name='devm_snd_dmaengine_pcm_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa16ebf14'/>
+      <elf-symbol name='devm_snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39ba94bf'/>
+      <elf-symbol name='devm_snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x789bd853'/>
+      <elf-symbol name='devm_spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x897ca071'/>
+      <elf-symbol name='devm_thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97ecfc39'/>
+      <elf-symbol name='devm_thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x152c784c'/>
+      <elf-symbol name='devm_thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609cf4af'/>
+      <elf-symbol name='devm_usb_get_phy_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90c63f91'/>
+      <elf-symbol name='devm_watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3de5c715'/>
+      <elf-symbol name='devres_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4004a74'/>
+      <elf-symbol name='devres_alloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb88d9dbc'/>
       <elf-symbol name='devres_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe93e49c3'/>
-      <elf-symbol name='devres_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6abdf02e'/>
+      <elf-symbol name='devres_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66c86357'/>
       <elf-symbol name='disable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce4ca6f'/>
       <elf-symbol name='disable_irq_nosync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27bbf221'/>
       <elf-symbol name='disable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf21e1f9b'/>
-      <elf-symbol name='disk_end_io_acct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf07fa83'/>
-      <elf-symbol name='disk_start_io_acct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3098dcfd'/>
+      <elf-symbol name='disk_end_io_acct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb49b3073'/>
+      <elf-symbol name='disk_start_io_acct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ae9b6b9'/>
       <elf-symbol name='divider_get_val' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e798ffb'/>
-      <elf-symbol name='divider_recalc_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x676860d8'/>
-      <elf-symbol name='divider_ro_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53380227'/>
-      <elf-symbol name='divider_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbda3e7'/>
-      <elf-symbol name='dma_alloc_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c356292'/>
-      <elf-symbol name='dma_alloc_noncoherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd712ebb8'/>
-      <elf-symbol name='dma_async_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4bd9392'/>
-      <elf-symbol name='dma_async_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde0b1c4e'/>
-      <elf-symbol name='dma_async_tx_descriptor_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32280852'/>
-      <elf-symbol name='dma_buf_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccc4fd'/>
-      <elf-symbol name='dma_buf_begin_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66dd46f0'/>
-      <elf-symbol name='dma_buf_begin_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd2e4484'/>
-      <elf-symbol name='dma_buf_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x782e2679'/>
-      <elf-symbol name='dma_buf_end_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48a9f9d8'/>
-      <elf-symbol name='dma_buf_end_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79e8b8a5'/>
-      <elf-symbol name='dma_buf_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0ef0cdf'/>
-      <elf-symbol name='dma_buf_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x449af84b'/>
-      <elf-symbol name='dma_buf_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdba63bc8'/>
-      <elf-symbol name='dma_buf_map_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc33df55e'/>
-      <elf-symbol name='dma_buf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb494a60'/>
-      <elf-symbol name='dma_buf_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc85bbb3e'/>
-      <elf-symbol name='dma_buf_unmap_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fd64124'/>
-      <elf-symbol name='dma_buf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7835e47'/>
-      <elf-symbol name='dma_buf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e5a645e'/>
-      <elf-symbol name='dma_direct_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d6185a8'/>
-      <elf-symbol name='dma_direct_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x358b0b9b'/>
+      <elf-symbol name='divider_recalc_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e2d7c07'/>
+      <elf-symbol name='divider_ro_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceb35534'/>
+      <elf-symbol name='divider_round_rate_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1d1abf5'/>
+      <elf-symbol name='dma_alloc_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc78147b8'/>
+      <elf-symbol name='dma_alloc_noncoherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2689216'/>
+      <elf-symbol name='dma_async_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2faf2479'/>
+      <elf-symbol name='dma_async_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67601bd9'/>
+      <elf-symbol name='dma_async_tx_descriptor_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bc435fc'/>
+      <elf-symbol name='dma_buf_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2c32a4d'/>
+      <elf-symbol name='dma_buf_begin_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37ccec18'/>
+      <elf-symbol name='dma_buf_begin_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x881f035d'/>
+      <elf-symbol name='dma_buf_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x986a4b84'/>
+      <elf-symbol name='dma_buf_end_cpu_access' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4f27f59'/>
+      <elf-symbol name='dma_buf_end_cpu_access_partial' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb62807c1'/>
+      <elf-symbol name='dma_buf_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c9c30f'/>
+      <elf-symbol name='dma_buf_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7986d9e2'/>
+      <elf-symbol name='dma_buf_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1475901'/>
+      <elf-symbol name='dma_buf_map_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x340678d8'/>
+      <elf-symbol name='dma_buf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x127af056'/>
+      <elf-symbol name='dma_buf_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3405a627'/>
+      <elf-symbol name='dma_buf_unmap_attachment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bb965c3'/>
+      <elf-symbol name='dma_buf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4f7ab96'/>
+      <elf-symbol name='dma_buf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x196390c2'/>
+      <elf-symbol name='dma_direct_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2f5b531'/>
+      <elf-symbol name='dma_direct_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x399364d2'/>
       <elf-symbol name='dma_fence_add_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e21c9a1'/>
       <elf-symbol name='dma_fence_context_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14605535'/>
       <elf-symbol name='dma_fence_default_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x350ea558'/>
@@ -1106,53 +1106,53 @@
       <elf-symbol name='dma_fence_signal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x731c4a9c'/>
       <elf-symbol name='dma_fence_signal_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d02cd70'/>
       <elf-symbol name='dma_fence_wait_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98c039dc'/>
-      <elf-symbol name='dma_free_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9def071d'/>
-      <elf-symbol name='dma_free_noncoherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7723ee0'/>
-      <elf-symbol name='dma_get_merge_boundary' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde225c4'/>
-      <elf-symbol name='dma_get_sgtable_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd9a72db'/>
-      <elf-symbol name='dma_get_slave_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x357e2032'/>
-      <elf-symbol name='dma_get_slave_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe869565d'/>
-      <elf-symbol name='dma_heap_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73a8775f'/>
-      <elf-symbol name='dma_heap_buffer_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9950bd68'/>
+      <elf-symbol name='dma_free_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ea5160d'/>
+      <elf-symbol name='dma_free_noncoherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f1c9c34'/>
+      <elf-symbol name='dma_get_merge_boundary' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78fb8a40'/>
+      <elf-symbol name='dma_get_sgtable_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaf1e25f'/>
+      <elf-symbol name='dma_get_slave_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf22d6135'/>
+      <elf-symbol name='dma_get_slave_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x518a0b69'/>
+      <elf-symbol name='dma_heap_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c6d871b'/>
+      <elf-symbol name='dma_heap_buffer_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb774a44c'/>
       <elf-symbol name='dma_heap_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeff75c0b'/>
-      <elf-symbol name='dma_heap_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcffa53e'/>
+      <elf-symbol name='dma_heap_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20e3ba07'/>
       <elf-symbol name='dma_heap_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf39b6569'/>
       <elf-symbol name='dma_heap_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed3a3cb3'/>
       <elf-symbol name='dma_heap_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67e2f47'/>
-      <elf-symbol name='dma_map_page_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73930b77'/>
-      <elf-symbol name='dma_map_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2b9c72d'/>
-      <elf-symbol name='dma_map_sg_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6354401f'/>
-      <elf-symbol name='dma_max_mapping_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba00248b'/>
-      <elf-symbol name='dma_mmap_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf41300f2'/>
+      <elf-symbol name='dma_map_page_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13aa49d3'/>
+      <elf-symbol name='dma_map_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfffc46d'/>
+      <elf-symbol name='dma_map_sg_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11858f6f'/>
+      <elf-symbol name='dma_max_mapping_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x427658d'/>
+      <elf-symbol name='dma_mmap_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x760ce97f'/>
       <elf-symbol name='dma_pool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x678b96ec'/>
-      <elf-symbol name='dma_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff342b11'/>
+      <elf-symbol name='dma_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x198bda89'/>
       <elf-symbol name='dma_pool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5aa7165'/>
       <elf-symbol name='dma_pool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f7754a8'/>
-      <elf-symbol name='dma_release_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa67739e7'/>
-      <elf-symbol name='dma_request_chan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3b14a8'/>
-      <elf-symbol name='dma_resv_add_excl_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa53a4570'/>
-      <elf-symbol name='dma_resv_add_shared_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcf8191f'/>
-      <elf-symbol name='dma_resv_reserve_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85d17ccc'/>
-      <elf-symbol name='dma_resv_test_signaled_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbae6253c'/>
-      <elf-symbol name='dma_resv_wait_timeout_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38740874'/>
-      <elf-symbol name='dma_set_coherent_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eaf04d2'/>
-      <elf-symbol name='dma_set_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6601b31'/>
-      <elf-symbol name='dma_sync_sg_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e3b257a'/>
-      <elf-symbol name='dma_sync_sg_for_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd87bdc6a'/>
-      <elf-symbol name='dma_sync_single_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9525a758'/>
-      <elf-symbol name='dma_sync_single_for_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65cc0e8'/>
-      <elf-symbol name='dma_unmap_page_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f8d82a9'/>
-      <elf-symbol name='dma_unmap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14218eaa'/>
-      <elf-symbol name='dma_unmap_sg_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba6ac8a5'/>
-      <elf-symbol name='dmabuf_page_pool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7518a95c'/>
+      <elf-symbol name='dma_release_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7241ce7'/>
+      <elf-symbol name='dma_request_chan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24b9c211'/>
+      <elf-symbol name='dma_resv_add_excl_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a72118'/>
+      <elf-symbol name='dma_resv_add_shared_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd8c713e'/>
+      <elf-symbol name='dma_resv_reserve_shared' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38a9b842'/>
+      <elf-symbol name='dma_resv_test_signaled_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8f9ad23'/>
+      <elf-symbol name='dma_resv_wait_timeout_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb775a1e2'/>
+      <elf-symbol name='dma_set_coherent_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebe948e1'/>
+      <elf-symbol name='dma_set_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x383d8e02'/>
+      <elf-symbol name='dma_sync_sg_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x707235b2'/>
+      <elf-symbol name='dma_sync_sg_for_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8802a01a'/>
+      <elf-symbol name='dma_sync_single_for_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7483670'/>
+      <elf-symbol name='dma_sync_single_for_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9680feec'/>
+      <elf-symbol name='dma_unmap_page_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa11d7f37'/>
+      <elf-symbol name='dma_unmap_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2afff8a6'/>
+      <elf-symbol name='dma_unmap_sg_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x110f51e9'/>
+      <elf-symbol name='dmabuf_page_pool_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11ba47c5'/>
       <elf-symbol name='dmabuf_page_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7ca016b'/>
       <elf-symbol name='dmabuf_page_pool_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1f4f3d0'/>
-      <elf-symbol name='dmabuf_page_pool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4293c90'/>
-      <elf-symbol name='dmaengine_unmap_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x571370e'/>
-      <elf-symbol name='dmam_alloc_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1224b3f1'/>
-      <elf-symbol name='dmam_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa612d24a'/>
-      <elf-symbol name='dmam_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe92d4d'/>
-      <elf-symbol name='do_SAK' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x629de5e4'/>
+      <elf-symbol name='dmabuf_page_pool_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfce7fba4'/>
+      <elf-symbol name='dmaengine_unmap_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3feee88'/>
+      <elf-symbol name='dmam_alloc_attrs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1032db4'/>
+      <elf-symbol name='dmam_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46f44631'/>
+      <elf-symbol name='dmam_pool_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25b12b44'/>
+      <elf-symbol name='do_SAK' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64eed330'/>
       <elf-symbol name='do_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x952664c5'/>
       <elf-symbol name='do_wait_intr_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5102a30b'/>
       <elf-symbol name='down' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6626afca'/>
@@ -1163,132 +1163,132 @@
       <elf-symbol name='down_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc7e2596'/>
       <elf-symbol name='down_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28ed2847'/>
       <elf-symbol name='downgrade_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd486fb9c'/>
-      <elf-symbol name='dput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83c77e7'/>
+      <elf-symbol name='dput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x242a2191'/>
       <elf-symbol name='drain_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa38602cd'/>
-      <elf-symbol name='driver_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbfbf502'/>
-      <elf-symbol name='driver_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eb3c66f'/>
-      <elf-symbol name='driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x467b9d5c'/>
-      <elf-symbol name='driver_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d1464d2'/>
-      <elf-symbol name='driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x717b723b'/>
-      <elf-symbol name='drm_add_edid_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee346b14'/>
-      <elf-symbol name='drm_add_modes_noedid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ecf1161'/>
-      <elf-symbol name='drm_atomic_add_affected_connectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74360bb5'/>
-      <elf-symbol name='drm_atomic_add_affected_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bb5b186'/>
-      <elf-symbol name='drm_atomic_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f002c2d'/>
-      <elf-symbol name='drm_atomic_get_connector_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e4d0436'/>
-      <elf-symbol name='drm_atomic_get_crtc_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70284954'/>
-      <elf-symbol name='drm_atomic_get_new_connector_for_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f49c257'/>
-      <elf-symbol name='drm_atomic_get_old_connector_for_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6861250b'/>
-      <elf-symbol name='drm_atomic_get_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ff5bc18'/>
-      <elf-symbol name='drm_atomic_get_private_obj_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc168ab24'/>
-      <elf-symbol name='drm_atomic_helper_bridge_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22028983'/>
-      <elf-symbol name='drm_atomic_helper_bridge_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b94a26'/>
-      <elf-symbol name='drm_atomic_helper_bridge_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd268bb31'/>
-      <elf-symbol name='drm_atomic_helper_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70c9ed37'/>
-      <elf-symbol name='drm_atomic_helper_check_modeset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x360f4f18'/>
-      <elf-symbol name='drm_atomic_helper_check_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39186420'/>
-      <elf-symbol name='drm_atomic_helper_check_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b79cbe5'/>
-      <elf-symbol name='drm_atomic_helper_cleanup_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd409071b'/>
-      <elf-symbol name='drm_atomic_helper_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbec1c056'/>
-      <elf-symbol name='drm_atomic_helper_commit_cleanup_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacdc5f95'/>
-      <elf-symbol name='drm_atomic_helper_commit_duplicated_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x173403d8'/>
-      <elf-symbol name='drm_atomic_helper_commit_hw_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f03ab8e'/>
-      <elf-symbol name='drm_atomic_helper_commit_modeset_disables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb7abe07'/>
-      <elf-symbol name='drm_atomic_helper_commit_modeset_enables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a5753e3'/>
-      <elf-symbol name='drm_atomic_helper_commit_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2117b0c2'/>
-      <elf-symbol name='drm_atomic_helper_commit_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d67bdcb'/>
-      <elf-symbol name='drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe88b0b92'/>
-      <elf-symbol name='drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd938d662'/>
-      <elf-symbol name='drm_atomic_helper_connector_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fc9d384'/>
-      <elf-symbol name='drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16c7fcc2'/>
-      <elf-symbol name='drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2f73cdb'/>
-      <elf-symbol name='drm_atomic_helper_crtc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71574665'/>
-      <elf-symbol name='drm_atomic_helper_damage_merged' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe71eba50'/>
-      <elf-symbol name='drm_atomic_helper_dirtyfb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7463b29d'/>
-      <elf-symbol name='drm_atomic_helper_disable_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee5f6b90'/>
-      <elf-symbol name='drm_atomic_helper_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2047af0b'/>
-      <elf-symbol name='drm_atomic_helper_fake_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x217b57d5'/>
-      <elf-symbol name='drm_atomic_helper_page_flip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8cc9cf2'/>
-      <elf-symbol name='drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dfa2d5f'/>
-      <elf-symbol name='drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf247b62f'/>
-      <elf-symbol name='drm_atomic_helper_plane_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd055fb5f'/>
-      <elf-symbol name='drm_atomic_helper_prepare_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d29ace4'/>
-      <elf-symbol name='drm_atomic_helper_set_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f74362'/>
-      <elf-symbol name='drm_atomic_helper_setup_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfedd9f1c'/>
-      <elf-symbol name='drm_atomic_helper_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39a61a8c'/>
-      <elf-symbol name='drm_atomic_helper_swap_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6082028d'/>
-      <elf-symbol name='drm_atomic_helper_update_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9edb2137'/>
-      <elf-symbol name='drm_atomic_helper_wait_for_dependencies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d2c2ae9'/>
-      <elf-symbol name='drm_atomic_helper_wait_for_fences' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1137e9a7'/>
-      <elf-symbol name='drm_atomic_helper_wait_for_flip_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8725cf12'/>
-      <elf-symbol name='drm_atomic_nonblocking_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb13ad84e'/>
-      <elf-symbol name='drm_atomic_normalize_zpos' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe12a02c0'/>
-      <elf-symbol name='drm_atomic_private_obj_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f575726'/>
-      <elf-symbol name='drm_atomic_private_obj_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcace20a1'/>
-      <elf-symbol name='drm_atomic_set_crtc_for_connector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19c60232'/>
-      <elf-symbol name='drm_atomic_set_crtc_for_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf2e0963'/>
-      <elf-symbol name='drm_atomic_set_fb_for_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f9a7af1'/>
-      <elf-symbol name='drm_atomic_set_mode_prop_for_crtc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53351a52'/>
-      <elf-symbol name='drm_atomic_state_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd34096a3'/>
-      <elf-symbol name='drm_atomic_state_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fba2987'/>
-      <elf-symbol name='drm_bridge_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56f85f08'/>
-      <elf-symbol name='drm_bridge_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12c1de06'/>
-      <elf-symbol name='drm_bridge_chain_mode_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf53135e4'/>
-      <elf-symbol name='drm_bridge_hpd_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44ec4f10'/>
-      <elf-symbol name='drm_bridge_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5769c99'/>
-      <elf-symbol name='drm_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c98b9c5'/>
-      <elf-symbol name='drm_connector_attach_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd04514ad'/>
-      <elf-symbol name='drm_connector_attach_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf61fc4e0'/>
-      <elf-symbol name='drm_connector_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ef49a1e'/>
-      <elf-symbol name='drm_connector_has_possible_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbe2b48b'/>
-      <elf-symbol name='drm_connector_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ebb11f4'/>
-      <elf-symbol name='drm_connector_init_with_ddc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a0ed26'/>
-      <elf-symbol name='drm_connector_list_iter_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e2e81fb'/>
-      <elf-symbol name='drm_connector_list_iter_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea6f578b'/>
-      <elf-symbol name='drm_connector_list_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0c44ef3'/>
-      <elf-symbol name='drm_connector_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdee03a34'/>
-      <elf-symbol name='drm_connector_set_panel_orientation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25d43690'/>
-      <elf-symbol name='drm_connector_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x754513e2'/>
-      <elf-symbol name='drm_connector_update_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dad4c71'/>
-      <elf-symbol name='drm_crtc_arm_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd185baf7'/>
-      <elf-symbol name='drm_crtc_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6cdd750'/>
-      <elf-symbol name='drm_crtc_enable_color_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44cfb0fc'/>
-      <elf-symbol name='drm_crtc_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70ba125b'/>
-      <elf-symbol name='drm_crtc_init_with_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdec4dc6b'/>
-      <elf-symbol name='drm_crtc_send_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf03750ed'/>
-      <elf-symbol name='drm_crtc_set_max_vblank_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d5ab94'/>
-      <elf-symbol name='drm_crtc_vblank_count_and_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf411f463'/>
-      <elf-symbol name='drm_crtc_vblank_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe51a6fdd'/>
-      <elf-symbol name='drm_crtc_vblank_helper_get_vblank_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2baee06b'/>
-      <elf-symbol name='drm_crtc_vblank_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd516854f'/>
-      <elf-symbol name='drm_crtc_vblank_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9912b41a'/>
-      <elf-symbol name='drm_crtc_vblank_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22e60eb2'/>
-      <elf-symbol name='drm_crtc_wait_one_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253e8907'/>
-      <elf-symbol name='drm_cvt_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66e53e2f'/>
-      <elf-symbol name='drm_debugfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1df8c0e5'/>
+      <elf-symbol name='driver_create_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66c1f0bd'/>
+      <elf-symbol name='driver_find_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x174b38e4'/>
+      <elf-symbol name='driver_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5340e8'/>
+      <elf-symbol name='driver_remove_file' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x813afa14'/>
+      <elf-symbol name='driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x211b5e9d'/>
+      <elf-symbol name='drm_add_edid_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17d73e9b'/>
+      <elf-symbol name='drm_add_modes_noedid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9cb60f1'/>
+      <elf-symbol name='drm_atomic_add_affected_connectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb6bc54b'/>
+      <elf-symbol name='drm_atomic_add_affected_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a323752'/>
+      <elf-symbol name='drm_atomic_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58b07db8'/>
+      <elf-symbol name='drm_atomic_get_connector_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee2601a'/>
+      <elf-symbol name='drm_atomic_get_crtc_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa0bdd3a'/>
+      <elf-symbol name='drm_atomic_get_new_connector_for_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d8789d7'/>
+      <elf-symbol name='drm_atomic_get_old_connector_for_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6aaf6e8b'/>
+      <elf-symbol name='drm_atomic_get_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84063088'/>
+      <elf-symbol name='drm_atomic_get_private_obj_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51ed1af5'/>
+      <elf-symbol name='drm_atomic_helper_bridge_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee0e4e2b'/>
+      <elf-symbol name='drm_atomic_helper_bridge_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5998721'/>
+      <elf-symbol name='drm_atomic_helper_bridge_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23a1e86e'/>
+      <elf-symbol name='drm_atomic_helper_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f5acfaa'/>
+      <elf-symbol name='drm_atomic_helper_check_modeset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26dfd24d'/>
+      <elf-symbol name='drm_atomic_helper_check_plane_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e324985'/>
+      <elf-symbol name='drm_atomic_helper_check_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6054dc9'/>
+      <elf-symbol name='drm_atomic_helper_cleanup_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd72fb45'/>
+      <elf-symbol name='drm_atomic_helper_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf34b161'/>
+      <elf-symbol name='drm_atomic_helper_commit_cleanup_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7440d004'/>
+      <elf-symbol name='drm_atomic_helper_commit_duplicated_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e74e85b'/>
+      <elf-symbol name='drm_atomic_helper_commit_hw_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2792cd29'/>
+      <elf-symbol name='drm_atomic_helper_commit_modeset_disables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe29fa318'/>
+      <elf-symbol name='drm_atomic_helper_commit_modeset_enables' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30a422a0'/>
+      <elf-symbol name='drm_atomic_helper_commit_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7686741e'/>
+      <elf-symbol name='drm_atomic_helper_commit_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa38eb6fc'/>
+      <elf-symbol name='drm_atomic_helper_connector_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2bc20f0'/>
+      <elf-symbol name='drm_atomic_helper_connector_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa83b59b'/>
+      <elf-symbol name='drm_atomic_helper_connector_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3572923'/>
+      <elf-symbol name='drm_atomic_helper_crtc_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd16fad2'/>
+      <elf-symbol name='drm_atomic_helper_crtc_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeaf30d32'/>
+      <elf-symbol name='drm_atomic_helper_crtc_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b1075eb'/>
+      <elf-symbol name='drm_atomic_helper_damage_merged' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc84c47f2'/>
+      <elf-symbol name='drm_atomic_helper_dirtyfb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x751f9b07'/>
+      <elf-symbol name='drm_atomic_helper_disable_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4640c37e'/>
+      <elf-symbol name='drm_atomic_helper_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cf837c'/>
+      <elf-symbol name='drm_atomic_helper_fake_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fff29cd'/>
+      <elf-symbol name='drm_atomic_helper_page_flip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e1ef46'/>
+      <elf-symbol name='drm_atomic_helper_plane_destroy_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdea898fa'/>
+      <elf-symbol name='drm_atomic_helper_plane_duplicate_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19be0248'/>
+      <elf-symbol name='drm_atomic_helper_plane_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba35f045'/>
+      <elf-symbol name='drm_atomic_helper_prepare_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4456f1a7'/>
+      <elf-symbol name='drm_atomic_helper_set_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb4e76b1'/>
+      <elf-symbol name='drm_atomic_helper_setup_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9ec9273'/>
+      <elf-symbol name='drm_atomic_helper_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2595258'/>
+      <elf-symbol name='drm_atomic_helper_swap_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e1d3691'/>
+      <elf-symbol name='drm_atomic_helper_update_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88dca210'/>
+      <elf-symbol name='drm_atomic_helper_wait_for_dependencies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3042f182'/>
+      <elf-symbol name='drm_atomic_helper_wait_for_fences' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe958c0e3'/>
+      <elf-symbol name='drm_atomic_helper_wait_for_flip_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefa47c6d'/>
+      <elf-symbol name='drm_atomic_nonblocking_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee196522'/>
+      <elf-symbol name='drm_atomic_normalize_zpos' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x195ab8a8'/>
+      <elf-symbol name='drm_atomic_private_obj_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbda90616'/>
+      <elf-symbol name='drm_atomic_private_obj_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6306c6e'/>
+      <elf-symbol name='drm_atomic_set_crtc_for_connector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb3294b8'/>
+      <elf-symbol name='drm_atomic_set_crtc_for_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95625835'/>
+      <elf-symbol name='drm_atomic_set_fb_for_plane' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73856eaa'/>
+      <elf-symbol name='drm_atomic_set_mode_prop_for_crtc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e765a34'/>
+      <elf-symbol name='drm_atomic_state_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93b6f9bf'/>
+      <elf-symbol name='drm_atomic_state_clear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58fdcdf1'/>
+      <elf-symbol name='drm_bridge_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98f0b16e'/>
+      <elf-symbol name='drm_bridge_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37086572'/>
+      <elf-symbol name='drm_bridge_chain_mode_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc995227e'/>
+      <elf-symbol name='drm_bridge_hpd_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cad73d6'/>
+      <elf-symbol name='drm_bridge_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x310e4e02'/>
+      <elf-symbol name='drm_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7311cf92'/>
+      <elf-symbol name='drm_connector_attach_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8110bde'/>
+      <elf-symbol name='drm_connector_attach_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dbcd773'/>
+      <elf-symbol name='drm_connector_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10b6dec1'/>
+      <elf-symbol name='drm_connector_has_possible_encoder' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86dd7040'/>
+      <elf-symbol name='drm_connector_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18507db9'/>
+      <elf-symbol name='drm_connector_init_with_ddc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d5c68c4'/>
+      <elf-symbol name='drm_connector_list_iter_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a7b7b1f'/>
+      <elf-symbol name='drm_connector_list_iter_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81cefd24'/>
+      <elf-symbol name='drm_connector_list_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad2449ea'/>
+      <elf-symbol name='drm_connector_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5077da1c'/>
+      <elf-symbol name='drm_connector_set_panel_orientation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c76db92'/>
+      <elf-symbol name='drm_connector_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b93507b'/>
+      <elf-symbol name='drm_connector_update_edid_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ff2f2'/>
+      <elf-symbol name='drm_crtc_arm_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d7a652b'/>
+      <elf-symbol name='drm_crtc_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe0db2f9'/>
+      <elf-symbol name='drm_crtc_enable_color_mgmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ee7f143'/>
+      <elf-symbol name='drm_crtc_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff05bc2e'/>
+      <elf-symbol name='drm_crtc_init_with_planes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee5c714'/>
+      <elf-symbol name='drm_crtc_send_vblank_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x217e63d0'/>
+      <elf-symbol name='drm_crtc_set_max_vblank_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed01d46b'/>
+      <elf-symbol name='drm_crtc_vblank_count_and_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec78eec7'/>
+      <elf-symbol name='drm_crtc_vblank_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x801ccaa5'/>
+      <elf-symbol name='drm_crtc_vblank_helper_get_vblank_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1e96c6d'/>
+      <elf-symbol name='drm_crtc_vblank_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20934db'/>
+      <elf-symbol name='drm_crtc_vblank_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb9bc9f9'/>
+      <elf-symbol name='drm_crtc_vblank_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb41b07db'/>
+      <elf-symbol name='drm_crtc_wait_one_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6856f89c'/>
+      <elf-symbol name='drm_cvt_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7442a923'/>
+      <elf-symbol name='drm_debugfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdda573f2'/>
       <elf-symbol name='drm_detect_hdmi_monitor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8ad5d01'/>
       <elf-symbol name='drm_detect_monitor_audio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66551bc7'/>
-      <elf-symbol name='drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c8edce'/>
-      <elf-symbol name='drm_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0aabb69'/>
-      <elf-symbol name='drm_dev_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcbe20f9'/>
+      <elf-symbol name='drm_dev_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f86f751'/>
+      <elf-symbol name='drm_dev_dbg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3477200b'/>
+      <elf-symbol name='drm_dev_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb0f0f5'/>
       <elf-symbol name='drm_dev_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8a034df'/>
-      <elf-symbol name='drm_dev_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8529df93'/>
-      <elf-symbol name='drm_dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc932c80e'/>
-      <elf-symbol name='drm_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4957f12f'/>
-      <elf-symbol name='drm_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd0fffc3'/>
-      <elf-symbol name='drm_dev_set_unique' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb31006c'/>
-      <elf-symbol name='drm_dev_unplug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61494dec'/>
-      <elf-symbol name='drm_dev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc879fea'/>
+      <elf-symbol name='drm_dev_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e1cf5c6'/>
+      <elf-symbol name='drm_dev_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8be3c83'/>
+      <elf-symbol name='drm_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d989159'/>
+      <elf-symbol name='drm_dev_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47dc0aba'/>
+      <elf-symbol name='drm_dev_set_unique' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfccdbe0d'/>
+      <elf-symbol name='drm_dev_unplug' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc18104c4'/>
+      <elf-symbol name='drm_dev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3132c26'/>
       <elf-symbol name='drm_display_mode_to_videomode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe9f72f3'/>
-      <elf-symbol name='drm_do_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe72ece59'/>
-      <elf-symbol name='drm_dp_aux_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x286e487a'/>
-      <elf-symbol name='drm_dp_aux_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb18941c4'/>
+      <elf-symbol name='drm_do_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x355bc047'/>
+      <elf-symbol name='drm_dp_aux_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d8e390e'/>
+      <elf-symbol name='drm_dp_aux_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d2c1644'/>
       <elf-symbol name='drm_dp_bw_code_to_link_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73011db0'/>
       <elf-symbol name='drm_dp_channel_eq_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedcf81ce'/>
       <elf-symbol name='drm_dp_clock_recovery_ok' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d701329'/>
-      <elf-symbol name='drm_dp_dpcd_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9e4430'/>
-      <elf-symbol name='drm_dp_dpcd_read_link_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7975e1d'/>
-      <elf-symbol name='drm_dp_dpcd_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x578de86e'/>
+      <elf-symbol name='drm_dp_dpcd_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb04a92b0'/>
+      <elf-symbol name='drm_dp_dpcd_read_link_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb18d8d9'/>
+      <elf-symbol name='drm_dp_dpcd_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1bf36f8'/>
       <elf-symbol name='drm_dp_get_adjust_request_pre_emphasis' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x582f248e'/>
       <elf-symbol name='drm_dp_get_adjust_request_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5c99a79'/>
       <elf-symbol name='drm_dp_get_edid_quirks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2f5c65b'/>
@@ -1297,262 +1297,262 @@
       <elf-symbol name='drm_dp_link_train_clock_recovery_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6ff9496'/>
       <elf-symbol name='drm_dsc_pps_payload_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d8fcaa'/>
       <elf-symbol name='drm_edid_block_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd13f9985'/>
-      <elf-symbol name='drm_encoder_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e95e024'/>
-      <elf-symbol name='drm_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29026501'/>
-      <elf-symbol name='drm_event_cancel_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a72039b'/>
-      <elf-symbol name='drm_event_reserve_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ce1195'/>
-      <elf-symbol name='drm_fb_cma_get_gem_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65cb1ab4'/>
+      <elf-symbol name='drm_encoder_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc12637df'/>
+      <elf-symbol name='drm_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b316d2'/>
+      <elf-symbol name='drm_event_cancel_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd02dc06a'/>
+      <elf-symbol name='drm_event_reserve_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11b95bc2'/>
+      <elf-symbol name='drm_fb_cma_get_gem_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d49a943'/>
       <elf-symbol name='drm_flip_work_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd60ff1c2'/>
       <elf-symbol name='drm_flip_work_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a2ed2c'/>
       <elf-symbol name='drm_flip_work_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x737100b1'/>
       <elf-symbol name='drm_flip_work_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcb59b84'/>
       <elf-symbol name='drm_format_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf826786c'/>
-      <elf-symbol name='drm_framebuffer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c9caa48'/>
-      <elf-symbol name='drm_gem_cma_dumb_create_internal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd6c47ff'/>
-      <elf-symbol name='drm_gem_cma_free_object' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3deffe07'/>
-      <elf-symbol name='drm_gem_cma_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61391aa7'/>
-      <elf-symbol name='drm_gem_cma_prime_get_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bd080a9'/>
-      <elf-symbol name='drm_gem_cma_prime_import_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41dcdb5a'/>
-      <elf-symbol name='drm_gem_cma_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55d36da7'/>
-      <elf-symbol name='drm_gem_cma_prime_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7172d252'/>
-      <elf-symbol name='drm_gem_cma_prime_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe00e7321'/>
-      <elf-symbol name='drm_gem_create_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcaeb96c3'/>
-      <elf-symbol name='drm_gem_dmabuf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa429c951'/>
-      <elf-symbol name='drm_gem_dmabuf_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x996b75d1'/>
-      <elf-symbol name='drm_gem_dmabuf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b22e2bb'/>
-      <elf-symbol name='drm_gem_dmabuf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0f9b753'/>
-      <elf-symbol name='drm_gem_fb_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda93ad4f'/>
-      <elf-symbol name='drm_gem_fb_create_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2211a7a9'/>
-      <elf-symbol name='drm_gem_fb_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74961691'/>
-      <elf-symbol name='drm_gem_fb_get_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x414fb2e1'/>
-      <elf-symbol name='drm_gem_fb_prepare_fb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fbe93c3'/>
-      <elf-symbol name='drm_gem_free_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x308cf995'/>
-      <elf-symbol name='drm_gem_get_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x797a3264'/>
-      <elf-symbol name='drm_gem_handle_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x986e0c9'/>
-      <elf-symbol name='drm_gem_lock_reservations' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdd626fd'/>
-      <elf-symbol name='drm_gem_map_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a3e5c6'/>
-      <elf-symbol name='drm_gem_map_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a587a'/>
-      <elf-symbol name='drm_gem_map_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b840af7'/>
-      <elf-symbol name='drm_gem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9878c413'/>
-      <elf-symbol name='drm_gem_mmap_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7a16ce3'/>
+      <elf-symbol name='drm_framebuffer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84c8dd7f'/>
+      <elf-symbol name='drm_gem_cma_dumb_create_internal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e5c7e7b'/>
+      <elf-symbol name='drm_gem_cma_free_object' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf18751a'/>
+      <elf-symbol name='drm_gem_cma_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdca860ef'/>
+      <elf-symbol name='drm_gem_cma_prime_get_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85e1d7eb'/>
+      <elf-symbol name='drm_gem_cma_prime_import_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77096fc'/>
+      <elf-symbol name='drm_gem_cma_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cafa077'/>
+      <elf-symbol name='drm_gem_cma_prime_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d43aa04'/>
+      <elf-symbol name='drm_gem_cma_prime_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee801ebc'/>
+      <elf-symbol name='drm_gem_create_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28e49d4a'/>
+      <elf-symbol name='drm_gem_dmabuf_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9929730a'/>
+      <elf-symbol name='drm_gem_dmabuf_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x446663c8'/>
+      <elf-symbol name='drm_gem_dmabuf_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cb3fd8a'/>
+      <elf-symbol name='drm_gem_dmabuf_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a81e100'/>
+      <elf-symbol name='drm_gem_fb_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed1881c7'/>
+      <elf-symbol name='drm_gem_fb_create_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37797310'/>
+      <elf-symbol name='drm_gem_fb_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67c34b2c'/>
+      <elf-symbol name='drm_gem_fb_get_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65d7ec4c'/>
+      <elf-symbol name='drm_gem_fb_prepare_fb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ec8033f'/>
+      <elf-symbol name='drm_gem_free_mmap_offset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x711731be'/>
+      <elf-symbol name='drm_gem_get_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f1f9b71'/>
+      <elf-symbol name='drm_gem_handle_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x606ab71f'/>
+      <elf-symbol name='drm_gem_lock_reservations' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1cdfd1e'/>
+      <elf-symbol name='drm_gem_map_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ba0a931'/>
+      <elf-symbol name='drm_gem_map_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x753cad7'/>
+      <elf-symbol name='drm_gem_map_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4099659'/>
+      <elf-symbol name='drm_gem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1f24ac9'/>
+      <elf-symbol name='drm_gem_mmap_obj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54fc9d2f'/>
       <elf-symbol name='drm_gem_object_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd680a377'/>
-      <elf-symbol name='drm_gem_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b4e8e11'/>
-      <elf-symbol name='drm_gem_object_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ec3dd7e'/>
-      <elf-symbol name='drm_gem_object_put_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8f1ef9f'/>
-      <elf-symbol name='drm_gem_object_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefbf620'/>
-      <elf-symbol name='drm_gem_prime_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe35f42c1'/>
-      <elf-symbol name='drm_gem_prime_fd_to_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd8e0831'/>
-      <elf-symbol name='drm_gem_prime_handle_to_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd478672'/>
-      <elf-symbol name='drm_gem_prime_import' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadfd93a3'/>
-      <elf-symbol name='drm_gem_prime_import_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdf9f5e5'/>
-      <elf-symbol name='drm_gem_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30aa3dee'/>
-      <elf-symbol name='drm_gem_private_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x675edb93'/>
-      <elf-symbol name='drm_gem_put_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c338ca'/>
-      <elf-symbol name='drm_gem_shmem_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65779900'/>
-      <elf-symbol name='drm_gem_shmem_free_object' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x691f3e7d'/>
-      <elf-symbol name='drm_gem_shmem_get_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3983c6a3'/>
-      <elf-symbol name='drm_gem_shmem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x445abade'/>
-      <elf-symbol name='drm_gem_shmem_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae0886f9'/>
-      <elf-symbol name='drm_gem_shmem_print_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67825ad9'/>
-      <elf-symbol name='drm_gem_shmem_unpin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf64f6145'/>
-      <elf-symbol name='drm_gem_shmem_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ac2ebfa'/>
-      <elf-symbol name='drm_gem_shmem_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3564fbad'/>
-      <elf-symbol name='drm_gem_unlock_reservations' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71e9562f'/>
-      <elf-symbol name='drm_gem_unmap_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73788b7f'/>
-      <elf-symbol name='drm_gem_vm_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcace2848'/>
-      <elf-symbol name='drm_gem_vm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b8d8133'/>
-      <elf-symbol name='drm_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b286bcb'/>
-      <elf-symbol name='drm_get_format_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x400fbf4b'/>
+      <elf-symbol name='drm_gem_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cc5a7a7'/>
+      <elf-symbol name='drm_gem_object_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0c0a68'/>
+      <elf-symbol name='drm_gem_object_put_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc54a506'/>
+      <elf-symbol name='drm_gem_object_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f6848f2'/>
+      <elf-symbol name='drm_gem_prime_export' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c75bf74'/>
+      <elf-symbol name='drm_gem_prime_fd_to_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8605133'/>
+      <elf-symbol name='drm_gem_prime_handle_to_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cde7f96'/>
+      <elf-symbol name='drm_gem_prime_import' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb23a0c4d'/>
+      <elf-symbol name='drm_gem_prime_import_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1a592a2'/>
+      <elf-symbol name='drm_gem_prime_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9696463a'/>
+      <elf-symbol name='drm_gem_private_object_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda99f67c'/>
+      <elf-symbol name='drm_gem_put_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1eb918cd'/>
+      <elf-symbol name='drm_gem_shmem_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94012aa2'/>
+      <elf-symbol name='drm_gem_shmem_free_object' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8852c74f'/>
+      <elf-symbol name='drm_gem_shmem_get_sg_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x582dd1f4'/>
+      <elf-symbol name='drm_gem_shmem_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbbda85f'/>
+      <elf-symbol name='drm_gem_shmem_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b0580ff'/>
+      <elf-symbol name='drm_gem_shmem_print_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93b83546'/>
+      <elf-symbol name='drm_gem_shmem_unpin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedefa554'/>
+      <elf-symbol name='drm_gem_shmem_vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce71fe37'/>
+      <elf-symbol name='drm_gem_shmem_vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7f04f52'/>
+      <elf-symbol name='drm_gem_unlock_reservations' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a8b2d22'/>
+      <elf-symbol name='drm_gem_unmap_dma_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf46d0024'/>
+      <elf-symbol name='drm_gem_vm_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5e3ab88'/>
+      <elf-symbol name='drm_gem_vm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe20ed71e'/>
+      <elf-symbol name='drm_get_edid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b5dd44e'/>
+      <elf-symbol name='drm_get_format_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe385d645'/>
       <elf-symbol name='drm_get_format_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e095f11'/>
-      <elf-symbol name='drm_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x184a4f1'/>
-      <elf-symbol name='drm_hdmi_avi_infoframe_from_display_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde3ffdd6'/>
-      <elf-symbol name='drm_helper_hpd_irq_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30ed53f'/>
-      <elf-symbol name='drm_helper_mode_fill_fb_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa8ddbd7'/>
-      <elf-symbol name='drm_helper_probe_single_connector_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b96025a'/>
-      <elf-symbol name='drm_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ff8e5b3'/>
-      <elf-symbol name='drm_irq_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c5500a4'/>
-      <elf-symbol name='drm_irq_uninstall' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc63f7447'/>
-      <elf-symbol name='drm_kms_helper_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15e4a644'/>
-      <elf-symbol name='drm_kms_helper_poll_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf81d44ee'/>
-      <elf-symbol name='drm_kms_helper_poll_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x750cb7d'/>
+      <elf-symbol name='drm_handle_vblank' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2298c27d'/>
+      <elf-symbol name='drm_hdmi_avi_infoframe_from_display_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd4c19f0'/>
+      <elf-symbol name='drm_helper_hpd_irq_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x199962cc'/>
+      <elf-symbol name='drm_helper_mode_fill_fb_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8acc3f06'/>
+      <elf-symbol name='drm_helper_probe_single_connector_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71017c38'/>
+      <elf-symbol name='drm_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x682b0688'/>
+      <elf-symbol name='drm_irq_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3df0e81'/>
+      <elf-symbol name='drm_irq_uninstall' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x716aabe4'/>
+      <elf-symbol name='drm_kms_helper_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb5db555'/>
+      <elf-symbol name='drm_kms_helper_poll_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf53f1d75'/>
+      <elf-symbol name='drm_kms_helper_poll_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bd7e796'/>
       <elf-symbol name='drm_mm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0517d7a'/>
       <elf-symbol name='drm_mm_insert_node_in_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4032484'/>
       <elf-symbol name='drm_mm_print' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7acb66'/>
       <elf-symbol name='drm_mm_remove_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b7ebf95'/>
       <elf-symbol name='drm_mm_takedown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57698a50'/>
-      <elf-symbol name='drm_mode_config_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d6bf4c3'/>
-      <elf-symbol name='drm_mode_config_helper_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05dca62'/>
-      <elf-symbol name='drm_mode_config_helper_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd2cf725'/>
-      <elf-symbol name='drm_mode_config_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba6cd7db'/>
+      <elf-symbol name='drm_mode_config_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93a7d7b6'/>
+      <elf-symbol name='drm_mode_config_helper_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6195295'/>
+      <elf-symbol name='drm_mode_config_helper_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597c8975'/>
+      <elf-symbol name='drm_mode_config_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85fabe9e'/>
       <elf-symbol name='drm_mode_convert_to_umode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4694508f'/>
       <elf-symbol name='drm_mode_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ce050be'/>
       <elf-symbol name='drm_mode_debug_printmodeline' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ed3c600'/>
-      <elf-symbol name='drm_mode_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38008d5d'/>
-      <elf-symbol name='drm_mode_duplicate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a740e0'/>
+      <elf-symbol name='drm_mode_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7370c24'/>
+      <elf-symbol name='drm_mode_duplicate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43e353b5'/>
       <elf-symbol name='drm_mode_equal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9b4753'/>
       <elf-symbol name='drm_mode_equal_no_clocks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ab87110'/>
-      <elf-symbol name='drm_mode_object_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23234146'/>
-      <elf-symbol name='drm_mode_object_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b8121d1'/>
-      <elf-symbol name='drm_mode_object_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd905962e'/>
-      <elf-symbol name='drm_mode_probed_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3b14222'/>
+      <elf-symbol name='drm_mode_object_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58c9deb5'/>
+      <elf-symbol name='drm_mode_object_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcec26b6c'/>
+      <elf-symbol name='drm_mode_object_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2fe7d05'/>
+      <elf-symbol name='drm_mode_probed_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5c607a4'/>
       <elf-symbol name='drm_mode_vrefresh' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1b5340a'/>
-      <elf-symbol name='drm_modeset_acquire_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9cbb1ba'/>
-      <elf-symbol name='drm_modeset_acquire_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3590e4b4'/>
-      <elf-symbol name='drm_modeset_backoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d428e'/>
-      <elf-symbol name='drm_modeset_drop_locks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6f3829f'/>
-      <elf-symbol name='drm_modeset_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x801de275'/>
-      <elf-symbol name='drm_modeset_lock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6743c598'/>
-      <elf-symbol name='drm_modeset_lock_all_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82e6a663'/>
-      <elf-symbol name='drm_modeset_lock_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f66d2e5'/>
-      <elf-symbol name='drm_modeset_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf119b0c0'/>
-      <elf-symbol name='drm_modeset_unlock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x269d89cc'/>
-      <elf-symbol name='drm_object_attach_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2da16d8f'/>
-      <elf-symbol name='drm_of_component_match_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c70b050'/>
-      <elf-symbol name='drm_of_find_possible_crtcs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bb2cf5b'/>
-      <elf-symbol name='drm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74f2e73c'/>
-      <elf-symbol name='drm_panel_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac0085be'/>
-      <elf-symbol name='drm_panel_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6c47e89'/>
-      <elf-symbol name='drm_panel_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99b9f8ad'/>
-      <elf-symbol name='drm_panel_get_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f928692'/>
-      <elf-symbol name='drm_panel_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23008694'/>
-      <elf-symbol name='drm_panel_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaafc323'/>
-      <elf-symbol name='drm_panel_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a0851f'/>
-      <elf-symbol name='drm_panel_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe47478a7'/>
-      <elf-symbol name='drm_plane_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3b2b954'/>
-      <elf-symbol name='drm_plane_create_alpha_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6775321d'/>
-      <elf-symbol name='drm_plane_create_blend_mode_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe7b9c60'/>
-      <elf-symbol name='drm_plane_create_rotation_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadee4e98'/>
-      <elf-symbol name='drm_plane_create_zpos_immutable_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x358fc590'/>
-      <elf-symbol name='drm_plane_create_zpos_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4eee9974'/>
-      <elf-symbol name='drm_plane_enable_fb_damage_clips' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x918e0051'/>
-      <elf-symbol name='drm_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdd3c6a3'/>
-      <elf-symbol name='drm_prime_gem_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38004586'/>
-      <elf-symbol name='drm_prime_pages_to_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c8bdaf0'/>
-      <elf-symbol name='drm_prime_sg_to_page_addr_arrays' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4203a999'/>
+      <elf-symbol name='drm_modeset_acquire_fini' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfec37d34'/>
+      <elf-symbol name='drm_modeset_acquire_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b40336'/>
+      <elf-symbol name='drm_modeset_backoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a9ac99a'/>
+      <elf-symbol name='drm_modeset_drop_locks' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88f265d'/>
+      <elf-symbol name='drm_modeset_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87f29ca1'/>
+      <elf-symbol name='drm_modeset_lock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15245e84'/>
+      <elf-symbol name='drm_modeset_lock_all_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadb40016'/>
+      <elf-symbol name='drm_modeset_lock_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8885de05'/>
+      <elf-symbol name='drm_modeset_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87e18624'/>
+      <elf-symbol name='drm_modeset_unlock_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22ef3cc5'/>
+      <elf-symbol name='drm_object_attach_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd1a2498'/>
+      <elf-symbol name='drm_of_component_match_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9ea4ed9'/>
+      <elf-symbol name='drm_of_find_possible_crtcs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbba85b9'/>
+      <elf-symbol name='drm_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbdd30e4'/>
+      <elf-symbol name='drm_panel_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6321717d'/>
+      <elf-symbol name='drm_panel_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a8b84e0'/>
+      <elf-symbol name='drm_panel_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcb91c28'/>
+      <elf-symbol name='drm_panel_get_modes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd374bb09'/>
+      <elf-symbol name='drm_panel_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1d9c2c8'/>
+      <elf-symbol name='drm_panel_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed7895b1'/>
+      <elf-symbol name='drm_panel_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeaf8786'/>
+      <elf-symbol name='drm_panel_unprepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae97349d'/>
+      <elf-symbol name='drm_plane_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46b660d9'/>
+      <elf-symbol name='drm_plane_create_alpha_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4344795d'/>
+      <elf-symbol name='drm_plane_create_blend_mode_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b756c6d'/>
+      <elf-symbol name='drm_plane_create_rotation_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d5a0fc3'/>
+      <elf-symbol name='drm_plane_create_zpos_immutable_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x878e3e63'/>
+      <elf-symbol name='drm_plane_create_zpos_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff0e822c'/>
+      <elf-symbol name='drm_plane_enable_fb_damage_clips' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe86180e2'/>
+      <elf-symbol name='drm_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa61c6c31'/>
+      <elf-symbol name='drm_prime_gem_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xace47e64'/>
+      <elf-symbol name='drm_prime_pages_to_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x492b9e5c'/>
+      <elf-symbol name='drm_prime_sg_to_page_addr_arrays' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42a4601d'/>
       <elf-symbol name='drm_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28779e52'/>
-      <elf-symbol name='drm_property_blob_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d72168'/>
-      <elf-symbol name='drm_property_blob_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3b104e4'/>
-      <elf-symbol name='drm_property_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x907be143'/>
-      <elf-symbol name='drm_property_create_bitmask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde1273bd'/>
-      <elf-symbol name='drm_property_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34643096'/>
-      <elf-symbol name='drm_property_create_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79a20f1'/>
-      <elf-symbol name='drm_property_create_enum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffb6c1e1'/>
-      <elf-symbol name='drm_property_create_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30cb7285'/>
-      <elf-symbol name='drm_property_create_signed_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89462cac'/>
-      <elf-symbol name='drm_property_lookup_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853e2820'/>
-      <elf-symbol name='drm_property_replace_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdda92fda'/>
+      <elf-symbol name='drm_property_blob_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e09cdcd'/>
+      <elf-symbol name='drm_property_blob_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc637ea45'/>
+      <elf-symbol name='drm_property_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcfe719f'/>
+      <elf-symbol name='drm_property_create_bitmask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37deb427'/>
+      <elf-symbol name='drm_property_create_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3282513b'/>
+      <elf-symbol name='drm_property_create_bool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b94774f'/>
+      <elf-symbol name='drm_property_create_enum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff24a9a2'/>
+      <elf-symbol name='drm_property_create_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61c96c3'/>
+      <elf-symbol name='drm_property_create_signed_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcab2c635'/>
+      <elf-symbol name='drm_property_lookup_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34fad0cc'/>
+      <elf-symbol name='drm_property_replace_blob' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bb6d83'/>
       <elf-symbol name='drm_puts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x521ad6d0'/>
-      <elf-symbol name='drm_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72fd07be'/>
+      <elf-symbol name='drm_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3dee514'/>
       <elf-symbol name='drm_rect_calc_hscale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d50570f'/>
       <elf-symbol name='drm_rect_calc_vscale' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91fec1cc'/>
       <elf-symbol name='drm_rect_clip_scaled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99fd20aa'/>
       <elf-symbol name='drm_rect_intersect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x871ab41a'/>
-      <elf-symbol name='drm_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e52dc5b'/>
+      <elf-symbol name='drm_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17656f7a'/>
       <elf-symbol name='drm_rotation_simplify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf666902'/>
-      <elf-symbol name='drm_self_refresh_helper_alter_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6df1563d'/>
-      <elf-symbol name='drm_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbc21800'/>
-      <elf-symbol name='drm_send_event_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59c28641'/>
-      <elf-symbol name='drm_set_preferred_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcab9def'/>
-      <elf-symbol name='drm_simple_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b942b8'/>
-      <elf-symbol name='drm_state_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b88182f'/>
-      <elf-symbol name='drm_syncobj_add_point' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82fabd7d'/>
-      <elf-symbol name='drm_syncobj_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacdb94cc'/>
-      <elf-symbol name='drm_syncobj_find_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbde5c9e7'/>
+      <elf-symbol name='drm_self_refresh_helper_alter_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1365e924'/>
+      <elf-symbol name='drm_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabe2b45b'/>
+      <elf-symbol name='drm_send_event_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe72263b9'/>
+      <elf-symbol name='drm_set_preferred_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4aed4f6'/>
+      <elf-symbol name='drm_simple_encoder_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33296402'/>
+      <elf-symbol name='drm_state_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc1c2aa'/>
+      <elf-symbol name='drm_syncobj_add_point' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90a4f89d'/>
+      <elf-symbol name='drm_syncobj_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fdbd7d'/>
+      <elf-symbol name='drm_syncobj_find_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7f53d0a'/>
       <elf-symbol name='drm_syncobj_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a411479'/>
-      <elf-symbol name='drm_syncobj_replace_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89747265'/>
-      <elf-symbol name='drm_sysfs_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d08bee'/>
-      <elf-symbol name='drm_universal_plane_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x826931b2'/>
-      <elf-symbol name='drm_vblank_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb93b55a'/>
-      <elf-symbol name='drm_writeback_connector_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a6ad84'/>
-      <elf-symbol name='drm_writeback_queue_job' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2cf3f0'/>
-      <elf-symbol name='drm_writeback_signal_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac0371f'/>
-      <elf-symbol name='drmm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a6fff5'/>
-      <elf-symbol name='drmm_mode_config_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17d27791'/>
-      <elf-symbol name='dst_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3192d5c'/>
-      <elf-symbol name='dump_backtrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6f4a15f'/>
+      <elf-symbol name='drm_syncobj_replace_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xace513f6'/>
+      <elf-symbol name='drm_sysfs_hotplug_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ae76d87'/>
+      <elf-symbol name='drm_universal_plane_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ec397c7'/>
+      <elf-symbol name='drm_vblank_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd0fac9f'/>
+      <elf-symbol name='drm_writeback_connector_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4d052a'/>
+      <elf-symbol name='drm_writeback_queue_job' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1649e6a8'/>
+      <elf-symbol name='drm_writeback_signal_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53d675dd'/>
+      <elf-symbol name='drmm_kmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x495770d0'/>
+      <elf-symbol name='drmm_mode_config_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc423f01d'/>
+      <elf-symbol name='dst_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16ac277d'/>
+      <elf-symbol name='dump_backtrace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ca0e7f2'/>
       <elf-symbol name='dump_stack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b2dc060'/>
-      <elf-symbol name='dup_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8f527d'/>
-      <elf-symbol name='dw_handle_msi_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0dd58ce'/>
-      <elf-symbol name='dw_pcie_host_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba0c4b4d'/>
-      <elf-symbol name='dw_pcie_msi_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x834cb49f'/>
+      <elf-symbol name='dup_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4107884'/>
+      <elf-symbol name='dw_handle_msi_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34e4b27b'/>
+      <elf-symbol name='dw_pcie_host_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf81718f'/>
+      <elf-symbol name='dw_pcie_msi_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd4cb15d'/>
       <elf-symbol name='dw_pcie_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7791e066'/>
-      <elf-symbol name='dw_pcie_setup_rc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c214df6'/>
+      <elf-symbol name='dw_pcie_setup_rc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa31888b7'/>
       <elf-symbol name='dw_pcie_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe9a83d5'/>
-      <elf-symbol name='dwc3_send_gadget_ep_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb78da76'/>
-      <elf-symbol name='dwc3_stop_active_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc4ba7fc'/>
+      <elf-symbol name='dwc3_send_gadget_ep_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x226d1906'/>
+      <elf-symbol name='dwc3_stop_active_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6e892de'/>
       <elf-symbol name='em_cpu_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42c9a04'/>
       <elf-symbol name='emergency_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0c05159'/>
       <elf-symbol name='enable_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcec0987'/>
       <elf-symbol name='enable_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335c570f'/>
       <elf-symbol name='errno_to_blk_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x612bfd89'/>
-      <elf-symbol name='eth_commit_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3afabe43'/>
-      <elf-symbol name='eth_mac_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68905c00'/>
-      <elf-symbol name='eth_platform_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80a0d575'/>
-      <elf-symbol name='eth_prepare_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d9c679c'/>
-      <elf-symbol name='eth_type_trans' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e07f1a2'/>
-      <elf-symbol name='eth_validate_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x405ea842'/>
-      <elf-symbol name='ether_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x116e1ef4'/>
-      <elf-symbol name='ethtool_op_get_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedeec2a'/>
-      <elf-symbol name='ethtool_op_get_ts_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcb72d25'/>
-      <elf-symbol name='ethtool_virtdev_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2a0818f'/>
-      <elf-symbol name='event_triggers_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d770c8a'/>
+      <elf-symbol name='eth_commit_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf7bccf4'/>
+      <elf-symbol name='eth_mac_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x682945dc'/>
+      <elf-symbol name='eth_platform_get_mac_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40c83481'/>
+      <elf-symbol name='eth_prepare_mac_addr_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3df6fb33'/>
+      <elf-symbol name='eth_type_trans' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfbc6721'/>
+      <elf-symbol name='eth_validate_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dee3db0'/>
+      <elf-symbol name='ether_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ce0d2bc'/>
+      <elf-symbol name='ethtool_op_get_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2bb1c8c'/>
+      <elf-symbol name='ethtool_op_get_ts_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b9db23'/>
+      <elf-symbol name='ethtool_virtdev_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e8997b8'/>
+      <elf-symbol name='event_triggers_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cbf4c43'/>
       <elf-symbol name='eventfd_ctx_fdget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd67364f7'/>
       <elf-symbol name='eventfd_ctx_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x941f2aaa'/>
       <elf-symbol name='eventfd_signal' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf0f75c6'/>
-      <elf-symbol name='extcon_get_edev_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d9602e2'/>
-      <elf-symbol name='extcon_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd879db2'/>
-      <elf-symbol name='extcon_get_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbf5d173'/>
-      <elf-symbol name='extcon_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfba2266'/>
-      <elf-symbol name='extcon_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a3024f'/>
-      <elf-symbol name='extcon_set_property_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x482e2ebd'/>
-      <elf-symbol name='extcon_set_state_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bf5c4bc'/>
-      <elf-symbol name='extcon_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a7652e4'/>
-      <elf-symbol name='fasync_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad4095b'/>
-      <elf-symbol name='fd_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880c788e'/>
-      <elf-symbol name='fget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24a24bb7'/>
-      <elf-symbol name='file_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58ef6e4f'/>
-      <elf-symbol name='filp_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18603e77'/>
-      <elf-symbol name='filp_open_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fa7cdb4'/>
-      <elf-symbol name='find_extend_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa97ac25c'/>
-      <elf-symbol name='find_get_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x967ea74'/>
+      <elf-symbol name='extcon_get_edev_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5380ba'/>
+      <elf-symbol name='extcon_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc195e03a'/>
+      <elf-symbol name='extcon_get_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1212faa'/>
+      <elf-symbol name='extcon_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75d762a9'/>
+      <elf-symbol name='extcon_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x340c1441'/>
+      <elf-symbol name='extcon_set_property_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4bb1b0f'/>
+      <elf-symbol name='extcon_set_state_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e914c22'/>
+      <elf-symbol name='extcon_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880e8f8d'/>
+      <elf-symbol name='fasync_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b3c46c3'/>
+      <elf-symbol name='fd_install' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf23e0c3'/>
+      <elf-symbol name='fget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70917d1'/>
+      <elf-symbol name='file_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1c453e'/>
+      <elf-symbol name='filp_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9ad456'/>
+      <elf-symbol name='filp_open_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2305e91'/>
+      <elf-symbol name='find_extend_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36e1a2ce'/>
+      <elf-symbol name='find_get_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2db5d0e'/>
       <elf-symbol name='find_last_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6a68816'/>
       <elf-symbol name='find_next_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a3d105'/>
       <elf-symbol name='find_next_zero_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x479c3c86'/>
-      <elf-symbol name='find_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5561a3eb'/>
-      <elf-symbol name='find_task_by_vpid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbd5a1ce'/>
-      <elf-symbol name='find_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71bcaf53'/>
+      <elf-symbol name='find_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf77c1711'/>
+      <elf-symbol name='find_task_by_vpid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fa2d006'/>
+      <elf-symbol name='find_vma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17cbf475'/>
       <elf-symbol name='finish_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92540fbf'/>
-      <elf-symbol name='firmware_request_nowarn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73cfdc4d'/>
-      <elf-symbol name='flush_dcache_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe7fe16d'/>
+      <elf-symbol name='firmware_request_nowarn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d0b73a9'/>
+      <elf-symbol name='flush_dcache_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6766dabb'/>
       <elf-symbol name='flush_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1148c0ea'/>
       <elf-symbol name='flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4735ac17'/>
       <elf-symbol name='flush_workqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42160169'/>
-      <elf-symbol name='fput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85ef04fe'/>
+      <elf-symbol name='fput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec9bcf0'/>
       <elf-symbol name='frame_vector_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65246b8'/>
       <elf-symbol name='frame_vector_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d5f9555'/>
       <elf-symbol name='frame_vector_to_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5e5573a'/>
-      <elf-symbol name='free_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bb82a82'/>
+      <elf-symbol name='free_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe568f91'/>
       <elf-symbol name='free_io_pgtable_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e5c5bed'/>
       <elf-symbol name='free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1514a3b'/>
-      <elf-symbol name='free_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8b1f0ec'/>
+      <elf-symbol name='free_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd67e457b'/>
       <elf-symbol name='free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4302d0eb'/>
       <elf-symbol name='free_pages_exact' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb44339a'/>
       <elf-symbol name='free_percpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9ec4e21'/>
       <elf-symbol name='free_percpu_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc6bec66'/>
-      <elf-symbol name='freezing_slow_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb33fcc8e'/>
+      <elf-symbol name='freezing_slow_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf314c99'/>
       <elf-symbol name='freq_qos_add_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28498a88'/>
       <elf-symbol name='freq_qos_remove_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x894967be'/>
       <elf-symbol name='freq_qos_update_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eec24ef'/>
-      <elf-symbol name='freq_reg_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb35c2672'/>
-      <elf-symbol name='fsync_bdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9bde98ff'/>
+      <elf-symbol name='freq_reg_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6f88b0e'/>
+      <elf-symbol name='fsync_bdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3ee73d8'/>
       <elf-symbol name='full_name_hash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6eaaea1'/>
-      <elf-symbol name='fwnode_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26fdfaba'/>
-      <elf-symbol name='fwnode_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8334dab'/>
-      <elf-symbol name='fwnode_handle_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9cefab1'/>
-      <elf-symbol name='fwnode_handle_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce791fe2'/>
-      <elf-symbol name='fwnode_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6cd8606'/>
-      <elf-symbol name='fwnode_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed5ec2f2'/>
-      <elf-symbol name='fwnode_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8771a1f'/>
+      <elf-symbol name='fwnode_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeea350db'/>
+      <elf-symbol name='fwnode_gpiod_get_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64141bcb'/>
+      <elf-symbol name='fwnode_handle_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2b918f7'/>
+      <elf-symbol name='fwnode_handle_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacab02dd'/>
+      <elf-symbol name='fwnode_property_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94af2016'/>
+      <elf-symbol name='fwnode_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92c4c8de'/>
+      <elf-symbol name='fwnode_property_read_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadeb3cf0'/>
       <elf-symbol name='gcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea124bd1'/>
       <elf-symbol name='gen_pool_add_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbefa51a3'/>
       <elf-symbol name='gen_pool_alloc_algo_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b593aa8'/>
@@ -1565,112 +1565,112 @@
       <elf-symbol name='gen_pool_free_owner' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60ba97c'/>
       <elf-symbol name='gen_pool_has_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f557414'/>
       <elf-symbol name='gen_pool_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2464da17'/>
-      <elf-symbol name='generic_delete_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc234898'/>
-      <elf-symbol name='generic_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bf0c2a8'/>
-      <elf-symbol name='generic_file_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x789dbc9e'/>
+      <elf-symbol name='generic_delete_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf123f317'/>
+      <elf-symbol name='generic_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a96c9d8'/>
+      <elf-symbol name='generic_file_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65c1ac2d'/>
       <elf-symbol name='generic_handle_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ceaf0d5'/>
-      <elf-symbol name='generic_iommu_put_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff00bb3d'/>
-      <elf-symbol name='generic_mii_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a2a979b'/>
-      <elf-symbol name='genl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca8b57ee'/>
-      <elf-symbol name='genl_register_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73507374'/>
-      <elf-symbol name='genl_unregister_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe2ff3b'/>
-      <elf-symbol name='genlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9565a33'/>
-      <elf-symbol name='get_cpu_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x804c202d'/>
+      <elf-symbol name='generic_iommu_put_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf5d5723'/>
+      <elf-symbol name='generic_mii_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c84d5c5'/>
+      <elf-symbol name='genl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x723f86d'/>
+      <elf-symbol name='genl_register_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x840ffba8'/>
+      <elf-symbol name='genl_unregister_family' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc4513dc'/>
+      <elf-symbol name='genlmsg_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8239af0'/>
+      <elf-symbol name='get_cpu_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8750ef8e'/>
       <elf-symbol name='get_cpu_idle_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fe899b7'/>
       <elf-symbol name='get_cpu_idle_time_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b9793a2'/>
       <elf-symbol name='get_cpu_iowait_time_us' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1234e483'/>
-      <elf-symbol name='get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b309b91'/>
-      <elf-symbol name='get_device_system_crosststamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb541311'/>
-      <elf-symbol name='get_governor_parent_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15390382'/>
+      <elf-symbol name='get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf72be1b'/>
+      <elf-symbol name='get_device_system_crosststamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x796af671'/>
+      <elf-symbol name='get_governor_parent_kobj' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb18ba6a4'/>
       <elf-symbol name='get_next_ino' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe953b21f'/>
-      <elf-symbol name='get_pfnblock_flags_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11bfb49a'/>
-      <elf-symbol name='get_pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x741ea100'/>
+      <elf-symbol name='get_pfnblock_flags_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x509054c6'/>
+      <elf-symbol name='get_pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30e1078a'/>
       <elf-symbol name='get_random_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79aa04a2'/>
       <elf-symbol name='get_random_bytes_arch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d830297'/>
       <elf-symbol name='get_random_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36dc10c'/>
       <elf-symbol name='get_sg_io_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1de4ccb2'/>
-      <elf-symbol name='get_task_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f483661'/>
-      <elf-symbol name='get_thermal_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaab3a2db'/>
-      <elf-symbol name='get_tree_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c84477f'/>
+      <elf-symbol name='get_task_cred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5d5fec1'/>
+      <elf-symbol name='get_thermal_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ab9101'/>
+      <elf-symbol name='get_tree_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45b30b3'/>
       <elf-symbol name='get_unused_fd_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa843805a'/>
-      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5a53fc'/>
-      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9ff91e'/>
-      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ab0880a'/>
+      <elf-symbol name='get_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf43ef02c'/>
+      <elf-symbol name='get_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc252ae8f'/>
+      <elf-symbol name='get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeabc97ab'/>
       <elf-symbol name='get_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58adb05c'/>
       <elf-symbol name='get_zeroed_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09b5d9a'/>
       <elf-symbol name='gether_cleanup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8878cfa6'/>
-      <elf-symbol name='gether_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81814649'/>
-      <elf-symbol name='gether_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7876db41'/>
-      <elf-symbol name='gether_get_dev_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa37ac07b'/>
-      <elf-symbol name='gether_get_host_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59327a6b'/>
-      <elf-symbol name='gether_get_host_addr_u8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x171f5c65'/>
-      <elf-symbol name='gether_get_ifname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a59a5a'/>
-      <elf-symbol name='gether_get_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93c7cc0'/>
-      <elf-symbol name='gether_register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82bfcd74'/>
-      <elf-symbol name='gether_set_dev_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb4a0bfd'/>
-      <elf-symbol name='gether_set_gadget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f18c703'/>
-      <elf-symbol name='gether_set_host_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fd5257e'/>
-      <elf-symbol name='gether_set_ifname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92d4bfc5'/>
-      <elf-symbol name='gether_set_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48400604'/>
-      <elf-symbol name='gether_setup_name_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76946226'/>
+      <elf-symbol name='gether_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a90c685'/>
+      <elf-symbol name='gether_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a225b63'/>
+      <elf-symbol name='gether_get_dev_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a80689'/>
+      <elf-symbol name='gether_get_host_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21851b9d'/>
+      <elf-symbol name='gether_get_host_addr_u8' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad3f99ae'/>
+      <elf-symbol name='gether_get_ifname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca938d9c'/>
+      <elf-symbol name='gether_get_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf926dde2'/>
+      <elf-symbol name='gether_register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3707132d'/>
+      <elf-symbol name='gether_set_dev_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc151fc8b'/>
+      <elf-symbol name='gether_set_gadget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49029835'/>
+      <elf-symbol name='gether_set_host_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd07ca80'/>
+      <elf-symbol name='gether_set_ifname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3543b8e'/>
+      <elf-symbol name='gether_set_qmult' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe28af949'/>
+      <elf-symbol name='gether_setup_name_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab11cba0'/>
       <elf-symbol name='glob_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5009c71d'/>
-      <elf-symbol name='gov_attr_set_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31439123'/>
-      <elf-symbol name='gov_attr_set_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x705fcd9c'/>
-      <elf-symbol name='gov_attr_set_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4722f56'/>
+      <elf-symbol name='gov_attr_set_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce047391'/>
+      <elf-symbol name='gov_attr_set_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9030b4ab'/>
+      <elf-symbol name='gov_attr_set_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee369675'/>
       <elf-symbol name='gpio_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe990052'/>
       <elf-symbol name='gpio_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47229b5c'/>
       <elf-symbol name='gpio_request_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x403f9529'/>
-      <elf-symbol name='gpio_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b3fd722'/>
-      <elf-symbol name='gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b68ffd2'/>
-      <elf-symbol name='gpiochip_add_pin_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cf3c3a7'/>
-      <elf-symbol name='gpiochip_generic_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa90f0af9'/>
-      <elf-symbol name='gpiochip_generic_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x425fa0d1'/>
-      <elf-symbol name='gpiochip_generic_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545a9d2b'/>
-      <elf-symbol name='gpiochip_get_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a057f3a'/>
-      <elf-symbol name='gpiochip_line_is_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x972ee54a'/>
-      <elf-symbol name='gpiochip_lock_as_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef9c1ad6'/>
-      <elf-symbol name='gpiochip_populate_parent_fwspec_fourcell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2455618'/>
-      <elf-symbol name='gpiochip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9400de1d'/>
-      <elf-symbol name='gpiochip_unlock_as_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x858fa67c'/>
-      <elf-symbol name='gpiod_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82c3aebe'/>
-      <elf-symbol name='gpiod_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160e82aa'/>
-      <elf-symbol name='gpiod_direction_input' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c9ad6ba'/>
-      <elf-symbol name='gpiod_direction_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd472c07'/>
-      <elf-symbol name='gpiod_direction_output_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5247e93'/>
-      <elf-symbol name='gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x636d5da4'/>
-      <elf-symbol name='gpiod_get_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd29e985b'/>
-      <elf-symbol name='gpiod_get_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cfeeeed'/>
-      <elf-symbol name='gpiod_get_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7018dcc5'/>
-      <elf-symbol name='gpiod_get_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c6cd47b'/>
-      <elf-symbol name='gpiod_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd32d5f9b'/>
-      <elf-symbol name='gpiod_set_consumer_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66140ff8'/>
-      <elf-symbol name='gpiod_set_debounce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf20d085d'/>
-      <elf-symbol name='gpiod_set_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd07358c2'/>
-      <elf-symbol name='gpiod_set_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb83b2c7'/>
-      <elf-symbol name='gpiod_set_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4e04371'/>
-      <elf-symbol name='gpiod_set_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca704af8'/>
-      <elf-symbol name='gpiod_to_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf462f41f'/>
+      <elf-symbol name='gpio_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ada63e4'/>
+      <elf-symbol name='gpiochip_add_data_with_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71397870'/>
+      <elf-symbol name='gpiochip_add_pin_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcbb80d'/>
+      <elf-symbol name='gpiochip_generic_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f6ecf9a'/>
+      <elf-symbol name='gpiochip_generic_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe29d2af'/>
+      <elf-symbol name='gpiochip_generic_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca6c4a48'/>
+      <elf-symbol name='gpiochip_get_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a7417c9'/>
+      <elf-symbol name='gpiochip_line_is_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22604009'/>
+      <elf-symbol name='gpiochip_lock_as_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b4c193c'/>
+      <elf-symbol name='gpiochip_populate_parent_fwspec_fourcell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x507050ca'/>
+      <elf-symbol name='gpiochip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde89b326'/>
+      <elf-symbol name='gpiochip_unlock_as_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1f8ce1b'/>
+      <elf-symbol name='gpiod_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc023d27d'/>
+      <elf-symbol name='gpiod_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef40a088'/>
+      <elf-symbol name='gpiod_direction_input' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4d5b63f'/>
+      <elf-symbol name='gpiod_direction_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60111241'/>
+      <elf-symbol name='gpiod_direction_output_raw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b8bba4'/>
+      <elf-symbol name='gpiod_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6cb693'/>
+      <elf-symbol name='gpiod_get_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fb600ed'/>
+      <elf-symbol name='gpiod_get_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f16bf4b'/>
+      <elf-symbol name='gpiod_get_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28897871'/>
+      <elf-symbol name='gpiod_get_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67d86e1d'/>
+      <elf-symbol name='gpiod_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1bb490'/>
+      <elf-symbol name='gpiod_set_consumer_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb340aa0b'/>
+      <elf-symbol name='gpiod_set_debounce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x315e106f'/>
+      <elf-symbol name='gpiod_set_raw_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x718d701a'/>
+      <elf-symbol name='gpiod_set_raw_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6da7e7c'/>
+      <elf-symbol name='gpiod_set_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4e6a588'/>
+      <elf-symbol name='gpiod_set_value_cansleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b88f1c8'/>
+      <elf-symbol name='gpiod_to_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81f5709c'/>
       <elf-symbol name='gserial_alloc_line' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33bfdca2'/>
-      <elf-symbol name='gserial_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61d34436'/>
-      <elf-symbol name='gserial_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x159e7601'/>
+      <elf-symbol name='gserial_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8b64c93'/>
+      <elf-symbol name='gserial_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0e5c651'/>
       <elf-symbol name='guid_gen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c3f70e0'/>
-      <elf-symbol name='handle_bad_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b756ff5'/>
-      <elf-symbol name='handle_edge_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x310ad501'/>
-      <elf-symbol name='handle_fasteoi_ack_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82a95891'/>
-      <elf-symbol name='handle_fasteoi_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64f8c2b5'/>
-      <elf-symbol name='handle_level_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66151881'/>
+      <elf-symbol name='handle_bad_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90f64e6f'/>
+      <elf-symbol name='handle_edge_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca36e307'/>
+      <elf-symbol name='handle_fasteoi_ack_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68936f43'/>
+      <elf-symbol name='handle_fasteoi_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd23aa96f'/>
+      <elf-symbol name='handle_level_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdda49dc7'/>
       <elf-symbol name='handle_nested_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x549525ef'/>
-      <elf-symbol name='handle_simple_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3dea0cb'/>
+      <elf-symbol name='handle_simple_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf3eb49d'/>
       <elf-symbol name='handle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7647726c'/>
       <elf-symbol name='hashlen_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x162893fd'/>
       <elf-symbol name='have_governor_per_policy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47aad3b9'/>
-      <elf-symbol name='hci_alloc_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33bec88c'/>
-      <elf-symbol name='hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3beac749'/>
-      <elf-symbol name='hci_free_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c289e'/>
-      <elf-symbol name='hci_recv_diag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe64ee1e4'/>
-      <elf-symbol name='hci_recv_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4280128d'/>
-      <elf-symbol name='hci_register_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e50e83e'/>
-      <elf-symbol name='hci_unregister_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb95aeb3c'/>
+      <elf-symbol name='hci_alloc_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc6b1c43'/>
+      <elf-symbol name='hci_cmd_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca81b649'/>
+      <elf-symbol name='hci_free_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1488b1c3'/>
+      <elf-symbol name='hci_recv_diag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9551fdf'/>
+      <elf-symbol name='hci_recv_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe82e3fac'/>
+      <elf-symbol name='hci_register_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4cc6746'/>
+      <elf-symbol name='hci_unregister_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29c4ba7f'/>
       <elf-symbol name='hdmi_audio_infoframe_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb14ab1ef'/>
       <elf-symbol name='hdmi_audio_infoframe_pack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29e1e204'/>
       <elf-symbol name='hdmi_avi_infoframe_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25e58a09'/>
@@ -1679,71 +1679,71 @@
       <elf-symbol name='hex2bin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2edbeaf7'/>
       <elf-symbol name='hex_dump_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe916dc6'/>
       <elf-symbol name='hex_to_bin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11f7ed4c'/>
-      <elf-symbol name='hid_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefc9820d'/>
-      <elf-symbol name='hid_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1481f995'/>
-      <elf-symbol name='hid_destroy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b092e64'/>
-      <elf-symbol name='hid_input_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe462cf27'/>
-      <elf-symbol name='hid_parse_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd842c83d'/>
+      <elf-symbol name='hid_add_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3415a672'/>
+      <elf-symbol name='hid_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x484a3bb'/>
+      <elf-symbol name='hid_destroy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a79daad'/>
+      <elf-symbol name='hid_input_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x838085d4'/>
+      <elf-symbol name='hid_parse_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa89586c3'/>
       <elf-symbol name='hrtimer_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecd991f'/>
       <elf-symbol name='hrtimer_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc69bd8c'/>
       <elf-symbol name='hrtimer_forward' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76c41756'/>
       <elf-symbol name='hrtimer_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ebd5214'/>
-      <elf-symbol name='hrtimer_init_sleeper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da13bc5'/>
-      <elf-symbol name='hrtimer_sleeper_start_expires' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c91aab6'/>
+      <elf-symbol name='hrtimer_init_sleeper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0aed4b1'/>
+      <elf-symbol name='hrtimer_sleeper_start_expires' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56cc36d9'/>
       <elf-symbol name='hrtimer_start_range_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x939fc2ef'/>
       <elf-symbol name='hrtimer_try_to_cancel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef93df4b'/>
-      <elf-symbol name='hvc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b10ab'/>
-      <elf-symbol name='hvc_instantiate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x555d7223'/>
+      <elf-symbol name='hvc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf479db2c'/>
+      <elf-symbol name='hvc_instantiate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda3c6f74'/>
       <elf-symbol name='hvc_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9833bc0c'/>
-      <elf-symbol name='hvc_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7be59fa1'/>
-      <elf-symbol name='hvc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd11a47f4'/>
+      <elf-symbol name='hvc_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e669355'/>
+      <elf-symbol name='hvc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd79573d4'/>
       <elf-symbol name='hwrng_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x617b026c'/>
       <elf-symbol name='hwrng_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd57fbd31'/>
-      <elf-symbol name='hwspin_lock_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d51f541'/>
-      <elf-symbol name='hwspin_lock_request_specific' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ff95950'/>
-      <elf-symbol name='i2c_add_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51eac56c'/>
-      <elf-symbol name='i2c_add_numbered_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd455c9ac'/>
-      <elf-symbol name='i2c_del_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cde3267'/>
-      <elf-symbol name='i2c_del_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x477646e8'/>
-      <elf-symbol name='i2c_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabc612c6'/>
-      <elf-symbol name='i2c_generic_scl_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x492f16b8'/>
-      <elf-symbol name='i2c_get_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd286481'/>
-      <elf-symbol name='i2c_get_device_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a7490ff'/>
+      <elf-symbol name='hwspin_lock_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33704139'/>
+      <elf-symbol name='hwspin_lock_request_specific' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacbdea4f'/>
+      <elf-symbol name='i2c_add_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd091217e'/>
+      <elf-symbol name='i2c_add_numbered_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x108a0515'/>
+      <elf-symbol name='i2c_del_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2665558f'/>
+      <elf-symbol name='i2c_del_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8776945f'/>
+      <elf-symbol name='i2c_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x852d35f0'/>
+      <elf-symbol name='i2c_generic_scl_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae1756db'/>
+      <elf-symbol name='i2c_get_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe33c9384'/>
+      <elf-symbol name='i2c_get_device_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4416b51'/>
       <elf-symbol name='i2c_get_dma_safe_msg_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42041512'/>
-      <elf-symbol name='i2c_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e7cd404'/>
-      <elf-symbol name='i2c_new_ancillary_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5c10f06'/>
-      <elf-symbol name='i2c_new_client_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e07ffb8'/>
-      <elf-symbol name='i2c_new_dummy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7022fb6'/>
-      <elf-symbol name='i2c_new_scanned_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864d1c35'/>
-      <elf-symbol name='i2c_parse_fw_timings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb133fab8'/>
-      <elf-symbol name='i2c_put_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2751d424'/>
+      <elf-symbol name='i2c_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf978f97d'/>
+      <elf-symbol name='i2c_new_ancillary_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebe0f07'/>
+      <elf-symbol name='i2c_new_client_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5be3a2c9'/>
+      <elf-symbol name='i2c_new_dummy_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc43f942'/>
+      <elf-symbol name='i2c_new_scanned_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb515afd'/>
+      <elf-symbol name='i2c_parse_fw_timings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cfec83b'/>
+      <elf-symbol name='i2c_put_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9de242f0'/>
       <elf-symbol name='i2c_put_dma_safe_msg_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dae16e4'/>
-      <elf-symbol name='i2c_recover_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26140bfe'/>
-      <elf-symbol name='i2c_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd8e929'/>
-      <elf-symbol name='i2c_smbus_read_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae7c2ca2'/>
-      <elf-symbol name='i2c_smbus_read_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x571621a9'/>
-      <elf-symbol name='i2c_smbus_read_word_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b17a68'/>
-      <elf-symbol name='i2c_smbus_write_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b6f3c0f'/>
-      <elf-symbol name='i2c_smbus_write_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6735ef34'/>
-      <elf-symbol name='i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c468bf'/>
-      <elf-symbol name='i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3b3ef49'/>
-      <elf-symbol name='i2c_transfer_buffer_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8831aef'/>
-      <elf-symbol name='i2c_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x826815a4'/>
-      <elf-symbol name='i2c_verify_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3352851'/>
-      <elf-symbol name='i2c_verify_client' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61e88cb7'/>
-      <elf-symbol name='icc_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x989b8394'/>
-      <elf-symbol name='icc_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe823ea7b'/>
-      <elf-symbol name='icc_link_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe787a8f2'/>
-      <elf-symbol name='icc_node_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89c1713d'/>
-      <elf-symbol name='icc_node_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1faab67'/>
-      <elf-symbol name='icc_nodes_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed23c702'/>
-      <elf-symbol name='icc_provider_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6d727eb'/>
-      <elf-symbol name='icc_provider_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8483b4'/>
-      <elf-symbol name='icc_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa64315d8'/>
-      <elf-symbol name='icc_set_bw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c4a0a44'/>
-      <elf-symbol name='icc_set_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefdb3143'/>
-      <elf-symbol name='icc_std_aggregate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46255964'/>
-      <elf-symbol name='icc_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c8c4b3d'/>
+      <elf-symbol name='i2c_recover_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91b0d187'/>
+      <elf-symbol name='i2c_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38b226cf'/>
+      <elf-symbol name='i2c_smbus_read_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b4309fa'/>
+      <elf-symbol name='i2c_smbus_read_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b58a675'/>
+      <elf-symbol name='i2c_smbus_read_word_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x197a4213'/>
+      <elf-symbol name='i2c_smbus_write_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6734fff1'/>
+      <elf-symbol name='i2c_smbus_write_byte_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82e4895f'/>
+      <elf-symbol name='i2c_smbus_xfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cccbd54'/>
+      <elf-symbol name='i2c_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x432368d4'/>
+      <elf-symbol name='i2c_transfer_buffer_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac6c0315'/>
+      <elf-symbol name='i2c_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49c2f2b'/>
+      <elf-symbol name='i2c_verify_adapter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19dda417'/>
+      <elf-symbol name='i2c_verify_client' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcf484a4'/>
+      <elf-symbol name='icc_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6e3120e'/>
+      <elf-symbol name='icc_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4b56ecb'/>
+      <elf-symbol name='icc_link_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6743c14'/>
+      <elf-symbol name='icc_node_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6abb86d1'/>
+      <elf-symbol name='icc_node_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1f1fbe9'/>
+      <elf-symbol name='icc_nodes_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25b1e655'/>
+      <elf-symbol name='icc_provider_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f9b7149'/>
+      <elf-symbol name='icc_provider_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5991d11'/>
+      <elf-symbol name='icc_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bbe4604'/>
+      <elf-symbol name='icc_set_bw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16f09e8e'/>
+      <elf-symbol name='icc_set_tag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7048b48b'/>
+      <elf-symbol name='icc_std_aggregate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12e2e8b7'/>
+      <elf-symbol name='icc_sync_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x106a5efa'/>
       <elf-symbol name='ida_alloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7a02573'/>
       <elf-symbol name='ida_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7d5f92e'/>
       <elf-symbol name='ida_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffb7c514'/>
@@ -1756,11 +1756,11 @@
       <elf-symbol name='idr_get_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc57c48a3'/>
       <elf-symbol name='idr_preload' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x954f099c'/>
       <elf-symbol name='idr_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7665a95b'/>
-      <elf-symbol name='ieee80211_alloc_hw_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57b028c0'/>
-      <elf-symbol name='ieee80211_ap_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1282c4ec'/>
+      <elf-symbol name='ieee80211_alloc_hw_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c939dbe'/>
+      <elf-symbol name='ieee80211_ap_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b6c4166'/>
       <elf-symbol name='ieee80211_beacon_cntdwn_is_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe13a572f'/>
-      <elf-symbol name='ieee80211_beacon_get_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3757d4f0'/>
-      <elf-symbol name='ieee80211_beacon_get_tim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79b29f0e'/>
+      <elf-symbol name='ieee80211_beacon_get_template' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8886ebdd'/>
+      <elf-symbol name='ieee80211_beacon_get_tim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x860d81bc'/>
       <elf-symbol name='ieee80211_beacon_loss' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae563573'/>
       <elf-symbol name='ieee80211_beacon_update_cntdwn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a494b09'/>
       <elf-symbol name='ieee80211_bss_get_elem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7f4a43'/>
@@ -1771,190 +1771,190 @@
       <elf-symbol name='ieee80211_cqm_rssi_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf22289a'/>
       <elf-symbol name='ieee80211_csa_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8212dc1c'/>
       <elf-symbol name='ieee80211_find_sta' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd72f22a'/>
-      <elf-symbol name='ieee80211_find_sta_by_ifaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24bdc7de'/>
-      <elf-symbol name='ieee80211_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee5b500'/>
-      <elf-symbol name='ieee80211_free_txskb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea1b7c3d'/>
+      <elf-symbol name='ieee80211_find_sta_by_ifaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x196ae66e'/>
+      <elf-symbol name='ieee80211_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b349f3e'/>
+      <elf-symbol name='ieee80211_free_txskb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffd03b36'/>
       <elf-symbol name='ieee80211_freq_khz_to_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6bedf402'/>
-      <elf-symbol name='ieee80211_get_buffered_bc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc528e1d4'/>
-      <elf-symbol name='ieee80211_get_channel_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7cda495'/>
-      <elf-symbol name='ieee80211_get_hdrlen_from_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3378f8'/>
-      <elf-symbol name='ieee80211_get_tx_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec5c38e'/>
+      <elf-symbol name='ieee80211_get_buffered_bc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecc6645e'/>
+      <elf-symbol name='ieee80211_get_channel_khz' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60edd46d'/>
+      <elf-symbol name='ieee80211_get_hdrlen_from_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe86bcaf1'/>
+      <elf-symbol name='ieee80211_get_tx_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x173f6487'/>
       <elf-symbol name='ieee80211_hdrlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ef39823'/>
-      <elf-symbol name='ieee80211_iter_chan_contexts_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19ffd75'/>
-      <elf-symbol name='ieee80211_iterate_active_interfaces_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e206cdc'/>
-      <elf-symbol name='ieee80211_iterate_interfaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc53a1b70'/>
-      <elf-symbol name='ieee80211_iterate_stations_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5943b60c'/>
+      <elf-symbol name='ieee80211_iter_chan_contexts_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e27cdf7'/>
+      <elf-symbol name='ieee80211_iterate_active_interfaces_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf85e2c2b'/>
+      <elf-symbol name='ieee80211_iterate_interfaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf69b94b9'/>
+      <elf-symbol name='ieee80211_iterate_stations_atomic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd87ab480'/>
       <elf-symbol name='ieee80211_manage_rx_ba_offl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fe2d654'/>
-      <elf-symbol name='ieee80211_next_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ac96c9c'/>
-      <elf-symbol name='ieee80211_nullfunc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a77115e'/>
-      <elf-symbol name='ieee80211_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x437ac2e2'/>
-      <elf-symbol name='ieee80211_proberesp_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50571d51'/>
-      <elf-symbol name='ieee80211_pspoll_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x417767f5'/>
-      <elf-symbol name='ieee80211_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf357384'/>
-      <elf-symbol name='ieee80211_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98f83aca'/>
-      <elf-symbol name='ieee80211_radar_detected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc40d563'/>
-      <elf-symbol name='ieee80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2f43296'/>
-      <elf-symbol name='ieee80211_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c116517'/>
-      <elf-symbol name='ieee80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a31609'/>
+      <elf-symbol name='ieee80211_next_txq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc471e918'/>
+      <elf-symbol name='ieee80211_nullfunc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d22d864'/>
+      <elf-symbol name='ieee80211_probereq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce7cf3c'/>
+      <elf-symbol name='ieee80211_proberesp_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc47e94ba'/>
+      <elf-symbol name='ieee80211_pspoll_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa607f5'/>
+      <elf-symbol name='ieee80211_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2a6058e'/>
+      <elf-symbol name='ieee80211_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc39e75a'/>
+      <elf-symbol name='ieee80211_radar_detected' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48f53a3e'/>
+      <elf-symbol name='ieee80211_ready_on_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc5511bf'/>
+      <elf-symbol name='ieee80211_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597a278a'/>
+      <elf-symbol name='ieee80211_remain_on_channel_expired' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e4a4962'/>
       <elf-symbol name='ieee80211_report_low_ack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0112004'/>
-      <elf-symbol name='ieee80211_restart_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x876bbf94'/>
-      <elf-symbol name='ieee80211_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74ce8133'/>
-      <elf-symbol name='ieee80211_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc132bc17'/>
-      <elf-symbol name='ieee80211_scan_completed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf25c3cf9'/>
-      <elf-symbol name='ieee80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2e381bf'/>
-      <elf-symbol name='ieee80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5b8a40'/>
+      <elf-symbol name='ieee80211_restart_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c014196'/>
+      <elf-symbol name='ieee80211_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ed1fd1'/>
+      <elf-symbol name='ieee80211_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eaf0d43'/>
+      <elf-symbol name='ieee80211_scan_completed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb368f7dd'/>
+      <elf-symbol name='ieee80211_sched_scan_results' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff08f84'/>
+      <elf-symbol name='ieee80211_sched_scan_stopped' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6a9a41b'/>
       <elf-symbol name='ieee80211_sta_ps_transition' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8688a755'/>
       <elf-symbol name='ieee80211_sta_register_airtime' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb73ea975'/>
-      <elf-symbol name='ieee80211_stop_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf26c2a7'/>
-      <elf-symbol name='ieee80211_stop_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa87252e7'/>
+      <elf-symbol name='ieee80211_stop_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x188231f2'/>
+      <elf-symbol name='ieee80211_stop_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfff5a8d'/>
       <elf-symbol name='ieee80211_stop_rx_ba_session' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2460676'/>
       <elf-symbol name='ieee80211_stop_tx_ba_cb_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf780e33'/>
       <elf-symbol name='ieee80211_tdls_oper_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf38a065'/>
-      <elf-symbol name='ieee80211_tx_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x543ef26f'/>
-      <elf-symbol name='ieee80211_tx_prepare_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0da137f'/>
-      <elf-symbol name='ieee80211_tx_rate_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53cc833f'/>
-      <elf-symbol name='ieee80211_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x721f9bc2'/>
-      <elf-symbol name='ieee80211_tx_status_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbff6f34d'/>
+      <elf-symbol name='ieee80211_tx_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5aef926f'/>
+      <elf-symbol name='ieee80211_tx_prepare_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b7f962a'/>
+      <elf-symbol name='ieee80211_tx_rate_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbeee4711'/>
+      <elf-symbol name='ieee80211_tx_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60a59af7'/>
+      <elf-symbol name='ieee80211_tx_status_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc340128a'/>
       <elf-symbol name='ieee80211_txq_get_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc98e08'/>
-      <elf-symbol name='ieee80211_txq_may_transmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c1e4bba'/>
-      <elf-symbol name='ieee80211_txq_schedule_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48eab6f1'/>
-      <elf-symbol name='ieee80211_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x541f9dc4'/>
-      <elf-symbol name='ieee80211_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe17bd412'/>
-      <elf-symbol name='ieee80211_wake_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2804f0f0'/>
-      <elf-symbol name='ieee802154_alloc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a764e76'/>
-      <elf-symbol name='ieee802154_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecb34a78'/>
-      <elf-symbol name='ieee802154_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe152d84c'/>
-      <elf-symbol name='ieee802154_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87d97a8a'/>
-      <elf-symbol name='ieee802154_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72c8a165'/>
-      <elf-symbol name='ieee802154_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e2d1370'/>
-      <elf-symbol name='ieee802154_xmit_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7687df6'/>
-      <elf-symbol name='iio_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d5d937'/>
-      <elf-symbol name='import_iovec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91152c75'/>
+      <elf-symbol name='ieee80211_txq_may_transmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14b73ba9'/>
+      <elf-symbol name='ieee80211_txq_schedule_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9b957fe'/>
+      <elf-symbol name='ieee80211_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf14ebbb'/>
+      <elf-symbol name='ieee80211_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94f2d362'/>
+      <elf-symbol name='ieee80211_wake_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x932fa1f9'/>
+      <elf-symbol name='ieee802154_alloc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x337d65ec'/>
+      <elf-symbol name='ieee802154_free_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2086c757'/>
+      <elf-symbol name='ieee802154_register_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89be4d2e'/>
+      <elf-symbol name='ieee802154_rx_irqsafe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x944e1421'/>
+      <elf-symbol name='ieee802154_unregister_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab7662f2'/>
+      <elf-symbol name='ieee802154_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a6c5840'/>
+      <elf-symbol name='ieee802154_xmit_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71bce339'/>
+      <elf-symbol name='iio_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe22a758b'/>
+      <elf-symbol name='import_iovec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eadad1c'/>
       <elf-symbol name='in6_pton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609bcd98'/>
       <elf-symbol name='in_aton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b6314fd'/>
       <elf-symbol name='in_egroup_p' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39461d6a'/>
-      <elf-symbol name='inc_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a283be'/>
-      <elf-symbol name='init_dummy_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc80e4b6d'/>
-      <elf-symbol name='init_pseudo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ce4437'/>
+      <elf-symbol name='inc_zone_page_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d0afab1'/>
+      <elf-symbol name='init_dummy_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84405942'/>
+      <elf-symbol name='init_pseudo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d3badf'/>
       <elf-symbol name='init_srcu_struct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x910e6db5'/>
       <elf-symbol name='init_timer_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79cf5987'/>
       <elf-symbol name='init_wait_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe487975'/>
-      <elf-symbol name='input_alloc_absinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ccafa54'/>
-      <elf-symbol name='input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c94e4b2'/>
-      <elf-symbol name='input_close_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2ba707'/>
-      <elf-symbol name='input_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e052ff5'/>
-      <elf-symbol name='input_ff_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88089d7a'/>
-      <elf-symbol name='input_free_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeeb34eee'/>
-      <elf-symbol name='input_mt_assign_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99e2d2f0'/>
-      <elf-symbol name='input_mt_destroy_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67b077dc'/>
-      <elf-symbol name='input_mt_drop_unused' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4745149'/>
-      <elf-symbol name='input_mt_init_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c6a71a7'/>
-      <elf-symbol name='input_mt_report_finger_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb18161d'/>
-      <elf-symbol name='input_mt_report_pointer_emulation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c35a9d'/>
-      <elf-symbol name='input_mt_report_slot_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc0c8aca'/>
-      <elf-symbol name='input_mt_sync_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60450a8a'/>
-      <elf-symbol name='input_open_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1c007dc'/>
-      <elf-symbol name='input_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6341e'/>
-      <elf-symbol name='input_register_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7b8c63d'/>
-      <elf-symbol name='input_register_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa09bb137'/>
-      <elf-symbol name='input_set_abs_params' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x445bb35f'/>
-      <elf-symbol name='input_set_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb5e8c68'/>
-      <elf-symbol name='input_set_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fc60c45'/>
-      <elf-symbol name='input_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7758dda2'/>
-      <elf-symbol name='input_unregister_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e4027bc'/>
-      <elf-symbol name='input_unregister_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x550e832b'/>
+      <elf-symbol name='input_alloc_absinfo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ef39ad4'/>
+      <elf-symbol name='input_allocate_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ee6c1f2'/>
+      <elf-symbol name='input_close_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3dca9cf'/>
+      <elf-symbol name='input_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1710aaba'/>
+      <elf-symbol name='input_ff_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c5e90e0'/>
+      <elf-symbol name='input_free_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6464b358'/>
+      <elf-symbol name='input_mt_assign_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3cd4146'/>
+      <elf-symbol name='input_mt_destroy_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff97478c'/>
+      <elf-symbol name='input_mt_drop_unused' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0dd4095'/>
+      <elf-symbol name='input_mt_init_slots' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a96842'/>
+      <elf-symbol name='input_mt_report_finger_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd713875e'/>
+      <elf-symbol name='input_mt_report_pointer_emulation' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c6ab2e0'/>
+      <elf-symbol name='input_mt_report_slot_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd07d0958'/>
+      <elf-symbol name='input_mt_sync_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce59a2e0'/>
+      <elf-symbol name='input_open_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe208af98'/>
+      <elf-symbol name='input_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf69dd8d9'/>
+      <elf-symbol name='input_register_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99e52efe'/>
+      <elf-symbol name='input_register_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe13b52d8'/>
+      <elf-symbol name='input_set_abs_params' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff9e63c'/>
+      <elf-symbol name='input_set_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffc387d0'/>
+      <elf-symbol name='input_set_timestamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48716b59'/>
+      <elf-symbol name='input_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x139c974e'/>
+      <elf-symbol name='input_unregister_handle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x615fe332'/>
+      <elf-symbol name='input_unregister_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63a18c2d'/>
       <elf-symbol name='int_sqrt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb678366f'/>
       <elf-symbol name='int_to_scsilun' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ed90adc'/>
       <elf-symbol name='interval_tree_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab5a1eb'/>
       <elf-symbol name='interval_tree_iter_first' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa44a1307'/>
       <elf-symbol name='interval_tree_iter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd96babb4'/>
       <elf-symbol name='interval_tree_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b53e14'/>
-      <elf-symbol name='invalidate_mapping_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x682b3bb4'/>
+      <elf-symbol name='invalidate_mapping_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9678084e'/>
       <elf-symbol name='io_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93a6e0b2'/>
       <elf-symbol name='io_schedule_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbc4f89e'/>
       <elf-symbol name='iommu_alloc_resv_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf40724'/>
-      <elf-symbol name='iommu_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5470e50a'/>
-      <elf-symbol name='iommu_attach_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd97f7e44'/>
-      <elf-symbol name='iommu_aux_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41f8c336'/>
-      <elf-symbol name='iommu_aux_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c7eacb5'/>
-      <elf-symbol name='iommu_aux_get_pasid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a2e91b'/>
-      <elf-symbol name='iommu_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x241d53c9'/>
-      <elf-symbol name='iommu_dev_enable_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aeecf9a'/>
-      <elf-symbol name='iommu_dev_feature_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b6d09fa'/>
-      <elf-symbol name='iommu_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27e6e10f'/>
-      <elf-symbol name='iommu_device_sysfs_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8b02b80'/>
-      <elf-symbol name='iommu_device_sysfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd982d013'/>
-      <elf-symbol name='iommu_device_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f89fe7a'/>
-      <elf-symbol name='iommu_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x453a3227'/>
-      <elf-symbol name='iommu_dma_get_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x595624df'/>
-      <elf-symbol name='iommu_domain_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc4e74f0'/>
-      <elf-symbol name='iommu_domain_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf853d0'/>
-      <elf-symbol name='iommu_fwspec_add_ids' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8159e1e'/>
-      <elf-symbol name='iommu_fwspec_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1915a742'/>
-      <elf-symbol name='iommu_get_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4eb92b4'/>
-      <elf-symbol name='iommu_get_domain_for_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7f8606e'/>
+      <elf-symbol name='iommu_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd55a52d8'/>
+      <elf-symbol name='iommu_attach_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97d99231'/>
+      <elf-symbol name='iommu_aux_attach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c646195'/>
+      <elf-symbol name='iommu_aux_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e0d1471'/>
+      <elf-symbol name='iommu_aux_get_pasid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd06c5058'/>
+      <elf-symbol name='iommu_detach_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8164e337'/>
+      <elf-symbol name='iommu_dev_enable_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74093be1'/>
+      <elf-symbol name='iommu_dev_feature_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d800926'/>
+      <elf-symbol name='iommu_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9471f8c6'/>
+      <elf-symbol name='iommu_device_sysfs_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d6e35cb'/>
+      <elf-symbol name='iommu_device_sysfs_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff750b05'/>
+      <elf-symbol name='iommu_device_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56ef0e32'/>
+      <elf-symbol name='iommu_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x940ec806'/>
+      <elf-symbol name='iommu_dma_get_resv_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x675d61b6'/>
+      <elf-symbol name='iommu_domain_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13c8dffc'/>
+      <elf-symbol name='iommu_domain_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb095ee41'/>
+      <elf-symbol name='iommu_fwspec_add_ids' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x268d5609'/>
+      <elf-symbol name='iommu_fwspec_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x329c4e7d'/>
+      <elf-symbol name='iommu_get_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3053353'/>
+      <elf-symbol name='iommu_get_domain_for_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73b3ece3'/>
       <elf-symbol name='iommu_group_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d22bb58'/>
-      <elf-symbol name='iommu_group_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c6ad5da'/>
-      <elf-symbol name='iommu_group_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50cd1256'/>
+      <elf-symbol name='iommu_group_for_each_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87608e6e'/>
+      <elf-symbol name='iommu_group_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd9243'/>
       <elf-symbol name='iommu_group_get_iommudata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd55ad93b'/>
       <elf-symbol name='iommu_group_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89485687'/>
       <elf-symbol name='iommu_group_ref_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d6d0bbc'/>
       <elf-symbol name='iommu_group_set_iommudata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc66b77b1'/>
       <elf-symbol name='iommu_group_set_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcdd5b99'/>
-      <elf-symbol name='iommu_iova_to_phys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75552b8a'/>
-      <elf-symbol name='iommu_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66e4467a'/>
-      <elf-symbol name='iommu_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60ec2016'/>
-      <elf-symbol name='iommu_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6da6f477'/>
-      <elf-symbol name='iommu_put_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3468a195'/>
-      <elf-symbol name='iommu_register_device_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8aaace25'/>
-      <elf-symbol name='iommu_report_device_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76af2005'/>
-      <elf-symbol name='iommu_set_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe62dcf09'/>
-      <elf-symbol name='iommu_unmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3d6a593'/>
-      <elf-symbol name='iommu_unregister_device_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9953d7d9'/>
+      <elf-symbol name='iommu_iova_to_phys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a38131f'/>
+      <elf-symbol name='iommu_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6b8806f'/>
+      <elf-symbol name='iommu_map_sg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31e3f2a1'/>
+      <elf-symbol name='iommu_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc15dfbb6'/>
+      <elf-symbol name='iommu_put_dma_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4f1b173'/>
+      <elf-symbol name='iommu_register_device_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7025afb3'/>
+      <elf-symbol name='iommu_report_device_fault' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70ec0a89'/>
+      <elf-symbol name='iommu_set_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eec7bef'/>
+      <elf-symbol name='iommu_unmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94b1afdd'/>
+      <elf-symbol name='iommu_unregister_device_fault_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45f21128'/>
       <elf-symbol name='iounmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedc03953'/>
-      <elf-symbol name='iov_iter_bvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7b1b76e'/>
-      <elf-symbol name='iov_iter_kvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a0cb8c1'/>
+      <elf-symbol name='iov_iter_bvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1387f39c'/>
+      <elf-symbol name='iov_iter_kvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdeaf00a'/>
       <elf-symbol name='ip_compute_csum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20eadeb6'/>
       <elf-symbol name='ip_send_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2124474'/>
-      <elf-symbol name='iput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5b52769'/>
-      <elf-symbol name='irq_chip_ack_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13aad8d9'/>
-      <elf-symbol name='irq_chip_disable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91593d43'/>
-      <elf-symbol name='irq_chip_enable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3b55e22'/>
-      <elf-symbol name='irq_chip_eoi_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed407980'/>
-      <elf-symbol name='irq_chip_get_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d253b07'/>
-      <elf-symbol name='irq_chip_mask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7522903'/>
-      <elf-symbol name='irq_chip_retrigger_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf210370f'/>
-      <elf-symbol name='irq_chip_set_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd97588e6'/>
-      <elf-symbol name='irq_chip_set_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10230ac6'/>
-      <elf-symbol name='irq_chip_set_type_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe38ea9d3'/>
-      <elf-symbol name='irq_chip_set_vcpu_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bce6b1a'/>
-      <elf-symbol name='irq_chip_set_wake_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdca0e07f'/>
-      <elf-symbol name='irq_chip_unmask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd109999'/>
-      <elf-symbol name='irq_create_mapping_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x844833fc'/>
-      <elf-symbol name='irq_create_of_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8010f82b'/>
+      <elf-symbol name='iput' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c433868'/>
+      <elf-symbol name='irq_chip_ack_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38d0fb3c'/>
+      <elf-symbol name='irq_chip_disable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ca662bf'/>
+      <elf-symbol name='irq_chip_enable_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae7cdfd'/>
+      <elf-symbol name='irq_chip_eoi_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b6b1c73'/>
+      <elf-symbol name='irq_chip_get_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3e67c22'/>
+      <elf-symbol name='irq_chip_mask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5764647a'/>
+      <elf-symbol name='irq_chip_retrigger_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafe0d72a'/>
+      <elf-symbol name='irq_chip_set_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e0f3153'/>
+      <elf-symbol name='irq_chip_set_parent_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75ca8cb2'/>
+      <elf-symbol name='irq_chip_set_type_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec984d7'/>
+      <elf-symbol name='irq_chip_set_vcpu_affinity_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42853d0a'/>
+      <elf-symbol name='irq_chip_set_wake_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd755950'/>
+      <elf-symbol name='irq_chip_unmask_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebe86681'/>
+      <elf-symbol name='irq_create_mapping_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecaf5694'/>
+      <elf-symbol name='irq_create_of_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde1826ee'/>
       <elf-symbol name='irq_dispose_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c7db649'/>
-      <elf-symbol name='irq_domain_alloc_irqs_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b47c8b9'/>
-      <elf-symbol name='irq_domain_create_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x135aa0df'/>
-      <elf-symbol name='irq_domain_free_irqs_common' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd81079aa'/>
-      <elf-symbol name='irq_domain_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc839f675'/>
-      <elf-symbol name='irq_domain_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fcf3277'/>
-      <elf-symbol name='irq_domain_set_hwirq_and_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23b62735'/>
-      <elf-symbol name='irq_domain_set_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe98f8b9f'/>
-      <elf-symbol name='irq_domain_update_bus_token' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x409cbd95'/>
-      <elf-symbol name='irq_domain_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e5c8ae0'/>
-      <elf-symbol name='irq_domain_xlate_twocell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7146ce34'/>
-      <elf-symbol name='irq_find_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x677dde7c'/>
-      <elf-symbol name='irq_find_matching_fwspec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe704028a'/>
-      <elf-symbol name='irq_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64ed942c'/>
+      <elf-symbol name='irq_domain_alloc_irqs_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd67de87'/>
+      <elf-symbol name='irq_domain_create_hierarchy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37cbbe89'/>
+      <elf-symbol name='irq_domain_free_irqs_common' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a390fa'/>
+      <elf-symbol name='irq_domain_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85731ed3'/>
+      <elf-symbol name='irq_domain_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43001514'/>
+      <elf-symbol name='irq_domain_set_hwirq_and_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8d7c9bf'/>
+      <elf-symbol name='irq_domain_set_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82444a35'/>
+      <elf-symbol name='irq_domain_update_bus_token' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7681f48'/>
+      <elf-symbol name='irq_domain_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc47e3f99'/>
+      <elf-symbol name='irq_domain_xlate_twocell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a26cf30'/>
+      <elf-symbol name='irq_find_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe737a5'/>
+      <elf-symbol name='irq_find_matching_fwspec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7899bfa1'/>
+      <elf-symbol name='irq_get_irq_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7d3ce5f'/>
       <elf-symbol name='irq_modify_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7522f3ba'/>
-      <elf-symbol name='irq_of_parse_and_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4329fc'/>
+      <elf-symbol name='irq_of_parse_and_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x834ddc3b'/>
       <elf-symbol name='irq_set_affinity_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a7b4b03'/>
-      <elf-symbol name='irq_set_chained_handler_and_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x558a19f0'/>
-      <elf-symbol name='irq_set_chip_and_handler_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee2cde58'/>
+      <elf-symbol name='irq_set_chained_handler_and_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb57eaeed'/>
+      <elf-symbol name='irq_set_chip_and_handler_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9a36655'/>
       <elf-symbol name='irq_set_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20a789ac'/>
       <elf-symbol name='irq_set_irq_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc477a2'/>
       <elf-symbol name='irq_set_irq_wake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce2840e7'/>
-      <elf-symbol name='irq_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16db8f2f'/>
+      <elf-symbol name='irq_to_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74fdd831'/>
       <elf-symbol name='irq_work_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd36ebd12'/>
       <elf-symbol name='irq_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf361a95b'/>
       <elf-symbol name='is_vmalloc_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc31db0ce'/>
@@ -1962,49 +1962,49 @@
       <elf-symbol name='jiffies_to_msecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37befc70'/>
       <elf-symbol name='jiffies_to_usecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f24de73'/>
       <elf-symbol name='kasprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb384d37'/>
-      <elf-symbol name='kern_mount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97315e00'/>
-      <elf-symbol name='kern_unmount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2e06d1e'/>
-      <elf-symbol name='kernel_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaaf1d0e4'/>
-      <elf-symbol name='kernel_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0d85c02'/>
-      <elf-symbol name='kernel_getsockname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe06ee5f'/>
+      <elf-symbol name='kern_mount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e2e337a'/>
+      <elf-symbol name='kern_unmount' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x229611df'/>
+      <elf-symbol name='kernel_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5325e0d'/>
+      <elf-symbol name='kernel_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf48c16e9'/>
+      <elf-symbol name='kernel_getsockname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x696a2240'/>
       <elf-symbol name='kernel_neon_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fd180e7'/>
       <elf-symbol name='kernel_neon_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8a8110c'/>
-      <elf-symbol name='kernel_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9030ace'/>
+      <elf-symbol name='kernel_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x474a443c'/>
       <elf-symbol name='kernel_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e7bbcb3'/>
-      <elf-symbol name='kernel_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ed0da4'/>
-      <elf-symbol name='kernel_sock_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2b05492'/>
+      <elf-symbol name='kernel_sendmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x542df20d'/>
+      <elf-symbol name='kernel_sock_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87c39f0f'/>
       <elf-symbol name='kfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37a0cba'/>
       <elf-symbol name='kfree_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf474fdcb'/>
       <elf-symbol name='kfree_sensitive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0760fc0'/>
-      <elf-symbol name='kfree_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c7e580'/>
-      <elf-symbol name='kill_anon_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3f2a38a'/>
-      <elf-symbol name='kill_fasync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4b81611'/>
-      <elf-symbol name='kill_litter_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94118467'/>
-      <elf-symbol name='kiocb_set_cancel_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x180e4de7'/>
+      <elf-symbol name='kfree_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaeea9aa0'/>
+      <elf-symbol name='kill_anon_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d6ae2dd'/>
+      <elf-symbol name='kill_fasync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97576c28'/>
+      <elf-symbol name='kill_litter_super' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dbdee6e'/>
+      <elf-symbol name='kiocb_set_cancel_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a9d74cb'/>
       <elf-symbol name='kmalloc_order' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbe80fdb'/>
       <elf-symbol name='kmalloc_order_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8b9f817'/>
-      <elf-symbol name='kmem_cache_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3321775d'/>
-      <elf-symbol name='kmem_cache_alloc_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa1d9dc6'/>
-      <elf-symbol name='kmem_cache_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91dfd8e8'/>
-      <elf-symbol name='kmem_cache_create_usercopy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f130c9c'/>
-      <elf-symbol name='kmem_cache_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa981d2f'/>
-      <elf-symbol name='kmem_cache_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x783b4cf0'/>
+      <elf-symbol name='kmem_cache_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ae9a546'/>
+      <elf-symbol name='kmem_cache_alloc_trace' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x666e9a43'/>
+      <elf-symbol name='kmem_cache_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85248174'/>
+      <elf-symbol name='kmem_cache_create_usercopy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabfe41b6'/>
+      <elf-symbol name='kmem_cache_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c512d56'/>
+      <elf-symbol name='kmem_cache_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f408b45'/>
       <elf-symbol name='kmemdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66b4cc41'/>
       <elf-symbol name='kmemdup_nul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3f548ad'/>
-      <elf-symbol name='kobject_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd711db79'/>
-      <elf-symbol name='kobject_create_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37f653d6'/>
-      <elf-symbol name='kobject_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3f6208'/>
-      <elf-symbol name='kobject_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf90a270b'/>
-      <elf-symbol name='kobject_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a45081'/>
-      <elf-symbol name='kobject_init_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x974e91f8'/>
-      <elf-symbol name='kobject_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce54e2df'/>
-      <elf-symbol name='kobject_uevent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1652a466'/>
-      <elf-symbol name='kobject_uevent_env' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d1f4f5'/>
+      <elf-symbol name='kobject_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3fa22fb'/>
+      <elf-symbol name='kobject_create_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68165118'/>
+      <elf-symbol name='kobject_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c02219d'/>
+      <elf-symbol name='kobject_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8137bf53'/>
+      <elf-symbol name='kobject_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x564c727a'/>
+      <elf-symbol name='kobject_init_and_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1422541'/>
+      <elf-symbol name='kobject_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6dacf42'/>
+      <elf-symbol name='kobject_uevent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32f43548'/>
+      <elf-symbol name='kobject_uevent_env' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b944281'/>
       <elf-symbol name='krealloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1e12d81'/>
       <elf-symbol name='ksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ea5d10'/>
       <elf-symbol name='kstrdup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d39b0a7'/>
       <elf-symbol name='kstrdup_const' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x365e7911'/>
-      <elf-symbol name='kstrdup_quotable_cmdline' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x513cdff4'/>
+      <elf-symbol name='kstrdup_quotable_cmdline' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebb76f97'/>
       <elf-symbol name='kstrndup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eacf8a5'/>
       <elf-symbol name='kstrtobool' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0875eb1'/>
       <elf-symbol name='kstrtobool_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda9fc7ae'/>
@@ -2021,23 +2021,23 @@
       <elf-symbol name='kstrtoul_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a6af65c'/>
       <elf-symbol name='kstrtoull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c80c06c'/>
       <elf-symbol name='kstrtoull_from_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54245b39'/>
-      <elf-symbol name='kthread_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37623f4'/>
-      <elf-symbol name='kthread_bind_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b479b0e'/>
-      <elf-symbol name='kthread_cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x965f12d2'/>
-      <elf-symbol name='kthread_cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4a37d6c'/>
-      <elf-symbol name='kthread_create_on_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x888f5fad'/>
-      <elf-symbol name='kthread_create_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05f1b8c'/>
+      <elf-symbol name='kthread_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa049430b'/>
+      <elf-symbol name='kthread_bind_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa20d951b'/>
+      <elf-symbol name='kthread_cancel_delayed_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ce600c0'/>
+      <elf-symbol name='kthread_cancel_work_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb33b38e'/>
+      <elf-symbol name='kthread_create_on_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46dab91d'/>
+      <elf-symbol name='kthread_create_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6db92f4'/>
       <elf-symbol name='kthread_delayed_work_timer_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1b48cc6'/>
-      <elf-symbol name='kthread_destroy_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6581a50f'/>
-      <elf-symbol name='kthread_flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4723eb8'/>
-      <elf-symbol name='kthread_flush_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x807ff61a'/>
-      <elf-symbol name='kthread_mod_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x124b5c1'/>
-      <elf-symbol name='kthread_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37ab61c'/>
-      <elf-symbol name='kthread_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x247f26a9'/>
+      <elf-symbol name='kthread_destroy_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecee9688'/>
+      <elf-symbol name='kthread_flush_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5170c8b0'/>
+      <elf-symbol name='kthread_flush_worker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1e00cf8'/>
+      <elf-symbol name='kthread_mod_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc7df190'/>
+      <elf-symbol name='kthread_queue_delayed_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8e29f6d'/>
+      <elf-symbol name='kthread_queue_work' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb39fdd2f'/>
       <elf-symbol name='kthread_should_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3f7646e'/>
-      <elf-symbol name='kthread_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf27bd7e7'/>
-      <elf-symbol name='kthread_unuse_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb77984cd'/>
-      <elf-symbol name='kthread_use_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x277d03e1'/>
+      <elf-symbol name='kthread_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c78dedd'/>
+      <elf-symbol name='kthread_unuse_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44dd5714'/>
+      <elf-symbol name='kthread_use_mm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6dab3d9'/>
       <elf-symbol name='kthread_worker_fn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x955b0e2e'/>
       <elf-symbol name='ktime_add_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3952887'/>
       <elf-symbol name='ktime_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb43f9365'/>
@@ -2053,24 +2053,24 @@
       <elf-symbol name='kvfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aa1756e'/>
       <elf-symbol name='kvfree_call_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaf22757'/>
       <elf-symbol name='kvmalloc_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x599fb41c'/>
-      <elf-symbol name='led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b946d9d'/>
-      <elf-symbol name='led_classdev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d623c9'/>
+      <elf-symbol name='led_classdev_register_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d76d9e6'/>
+      <elf-symbol name='led_classdev_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacbd634a'/>
       <elf-symbol name='list_sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe091c977'/>
       <elf-symbol name='llist_add_batch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a1840e'/>
-      <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ba60f8a'/>
+      <elf-symbol name='lock_sock_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29a8e150'/>
       <elf-symbol name='log_abnormal_wakeup_reason' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d20fc95'/>
       <elf-symbol name='log_threaded_irq_wakeup_reason' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34e5628d'/>
       <elf-symbol name='lzo1x_1_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x787c882b'/>
       <elf-symbol name='lzo1x_decompress_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4df8fbc'/>
       <elf-symbol name='lzorle1x_1_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79f697e4'/>
       <elf-symbol name='mac_pton' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x652032cb'/>
-      <elf-symbol name='mbox_chan_received_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97c5e79d'/>
-      <elf-symbol name='mbox_client_txdone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e0f4cf7'/>
-      <elf-symbol name='mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27495465'/>
-      <elf-symbol name='mbox_controller_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaeb6fff4'/>
-      <elf-symbol name='mbox_free_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b128769'/>
-      <elf-symbol name='mbox_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x669f6337'/>
-      <elf-symbol name='mbox_send_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f6b5ac1'/>
+      <elf-symbol name='mbox_chan_received_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17a9c084'/>
+      <elf-symbol name='mbox_client_txdone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe59bc19b'/>
+      <elf-symbol name='mbox_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd95168ed'/>
+      <elf-symbol name='mbox_controller_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5517807e'/>
+      <elf-symbol name='mbox_free_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1ee4bf8'/>
+      <elf-symbol name='mbox_request_channel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f04c755'/>
+      <elf-symbol name='mbox_send_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3f1029b'/>
       <elf-symbol name='memchr' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xa07a37f0'/>
       <elf-symbol name='memchr_inv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8df92f66'/>
       <elf-symbol name='memcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0x449ad0a7'/>
@@ -2092,89 +2092,89 @@
       <elf-symbol name='memset' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xdcb764ad'/>
       <elf-symbol name='memset64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed8a2d95'/>
       <elf-symbol name='memunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e9fdd9d'/>
-      <elf-symbol name='mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b70124'/>
-      <elf-symbol name='mfd_remove_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864a5d7'/>
-      <elf-symbol name='mii_ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bc17cae'/>
-      <elf-symbol name='mii_ethtool_gset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c5ffd6e'/>
-      <elf-symbol name='mii_ethtool_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b92bb22'/>
-      <elf-symbol name='mii_nway_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x460c5404'/>
-      <elf-symbol name='mipi_dsi_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea215e5a'/>
-      <elf-symbol name='mipi_dsi_compression_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6a832f5'/>
+      <elf-symbol name='mfd_add_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb16acd3'/>
+      <elf-symbol name='mfd_remove_devices' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d08078a'/>
+      <elf-symbol name='mii_ethtool_get_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f230eb6'/>
+      <elf-symbol name='mii_ethtool_gset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0ed1187'/>
+      <elf-symbol name='mii_ethtool_set_link_ksettings' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf3f43ef'/>
+      <elf-symbol name='mii_nway_restart' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf71e8cfb'/>
+      <elf-symbol name='mipi_dsi_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x789d3d8e'/>
+      <elf-symbol name='mipi_dsi_compression_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c2117e6'/>
       <elf-symbol name='mipi_dsi_create_packet' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81ce66fa'/>
-      <elf-symbol name='mipi_dsi_dcs_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e911d93'/>
-      <elf-symbol name='mipi_dsi_dcs_set_column_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5362215c'/>
-      <elf-symbol name='mipi_dsi_dcs_set_display_brightness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfce631dd'/>
-      <elf-symbol name='mipi_dsi_dcs_set_page_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x710bd425'/>
-      <elf-symbol name='mipi_dsi_dcs_write_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe46b0d58'/>
-      <elf-symbol name='mipi_dsi_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcd345ae'/>
-      <elf-symbol name='mipi_dsi_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b3afb9e'/>
-      <elf-symbol name='mipi_dsi_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced82005'/>
-      <elf-symbol name='mipi_dsi_driver_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81314f28'/>
-      <elf-symbol name='mipi_dsi_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2686f75'/>
-      <elf-symbol name='mipi_dsi_host_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb983a0a3'/>
-      <elf-symbol name='mipi_dsi_host_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23900e93'/>
+      <elf-symbol name='mipi_dsi_dcs_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd6764d3'/>
+      <elf-symbol name='mipi_dsi_dcs_set_column_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3324f732'/>
+      <elf-symbol name='mipi_dsi_dcs_set_display_brightness' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2baf438'/>
+      <elf-symbol name='mipi_dsi_dcs_set_page_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaffa803d'/>
+      <elf-symbol name='mipi_dsi_dcs_write_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc547d5a8'/>
+      <elf-symbol name='mipi_dsi_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c678951'/>
+      <elf-symbol name='mipi_dsi_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeb24ea4'/>
+      <elf-symbol name='mipi_dsi_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9da7a51a'/>
+      <elf-symbol name='mipi_dsi_driver_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ca66e99'/>
+      <elf-symbol name='mipi_dsi_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d2aae'/>
+      <elf-symbol name='mipi_dsi_host_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31ff9459'/>
+      <elf-symbol name='mipi_dsi_host_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5439e36c'/>
       <elf-symbol name='mipi_dsi_packet_format_is_long' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadbeed61'/>
-      <elf-symbol name='mipi_dsi_picture_parameter_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8cb07a4'/>
-      <elf-symbol name='misc_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeb2a898'/>
-      <elf-symbol name='misc_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1399e020'/>
-      <elf-symbol name='mm_trace_rss_stat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85af20a2'/>
-      <elf-symbol name='mmc_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb395b340'/>
-      <elf-symbol name='mmc_alloc_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d48fef6'/>
-      <elf-symbol name='mmc_app_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe30e03f9'/>
-      <elf-symbol name='mmc_calc_max_discard' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x157af272'/>
-      <elf-symbol name='mmc_can_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x650fa3e'/>
-      <elf-symbol name='mmc_can_gpio_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa104f6b'/>
-      <elf-symbol name='mmc_can_secure_erase_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8be4908a'/>
-      <elf-symbol name='mmc_can_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadd088f6'/>
-      <elf-symbol name='mmc_cmdq_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd09f7fb9'/>
-      <elf-symbol name='mmc_cmdq_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdb67eda'/>
-      <elf-symbol name='mmc_cqe_post_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffd2cfb7'/>
-      <elf-symbol name='mmc_cqe_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f77d40e'/>
-      <elf-symbol name='mmc_cqe_request_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63e44943'/>
-      <elf-symbol name='mmc_cqe_start_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fdc3d25'/>
-      <elf-symbol name='mmc_crypto_prepare_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa25c2251'/>
-      <elf-symbol name='mmc_crypto_setup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed0866eb'/>
-      <elf-symbol name='mmc_detect_card_removed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e7dbd55'/>
-      <elf-symbol name='mmc_detect_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5efbe16b'/>
-      <elf-symbol name='mmc_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa24f2d75'/>
-      <elf-symbol name='mmc_erase_group_aligned' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11196990'/>
-      <elf-symbol name='mmc_flush_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc05fd4b8'/>
-      <elf-symbol name='mmc_free_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbbaacc3'/>
-      <elf-symbol name='mmc_get_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0aa9d75'/>
-      <elf-symbol name='mmc_get_ext_csd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59d16b1b'/>
-      <elf-symbol name='mmc_gpio_get_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x864aaad9'/>
-      <elf-symbol name='mmc_gpio_get_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacedcb35'/>
-      <elf-symbol name='mmc_gpiod_request_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff3c392b'/>
-      <elf-symbol name='mmc_gpiod_request_cd_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5db921f9'/>
-      <elf-symbol name='mmc_gpiod_request_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41e2b841'/>
-      <elf-symbol name='mmc_hw_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x352dfd83'/>
-      <elf-symbol name='mmc_of_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x848cca88'/>
-      <elf-symbol name='mmc_of_parse_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe87732c4'/>
-      <elf-symbol name='mmc_put_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa83ba31c'/>
-      <elf-symbol name='mmc_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1107525c'/>
-      <elf-symbol name='mmc_regulator_get_supply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fb1d228'/>
-      <elf-symbol name='mmc_regulator_set_ocr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb54b99ec'/>
-      <elf-symbol name='mmc_regulator_set_vqmmc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b432d0'/>
-      <elf-symbol name='mmc_release_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6fae633'/>
-      <elf-symbol name='mmc_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed2b12c4'/>
-      <elf-symbol name='mmc_request_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4d8f35'/>
-      <elf-symbol name='mmc_retune_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa20566f'/>
-      <elf-symbol name='mmc_retune_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2770e7a8'/>
-      <elf-symbol name='mmc_retune_unpause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93b085d'/>
-      <elf-symbol name='mmc_run_bkops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53be0005'/>
-      <elf-symbol name='mmc_sanitize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f506f71'/>
-      <elf-symbol name='mmc_send_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5af2d381'/>
-      <elf-symbol name='mmc_send_tuning' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea74f36b'/>
-      <elf-symbol name='mmc_set_data_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f4ed3d3'/>
-      <elf-symbol name='mmc_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4df83f'/>
-      <elf-symbol name='mmc_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9ad1295'/>
-      <elf-symbol name='mmc_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ca07f2a'/>
-      <elf-symbol name='mmc_wait_for_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95471ced'/>
-      <elf-symbol name='mmc_wait_for_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x993e881b'/>
+      <elf-symbol name='mipi_dsi_picture_parameter_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e8bfa35'/>
+      <elf-symbol name='misc_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x752c9cd6'/>
+      <elf-symbol name='misc_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x535cecd5'/>
+      <elf-symbol name='mm_trace_rss_stat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x819a7294'/>
+      <elf-symbol name='mmc_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb18845e5'/>
+      <elf-symbol name='mmc_alloc_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec2f24b'/>
+      <elf-symbol name='mmc_app_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf358d61b'/>
+      <elf-symbol name='mmc_calc_max_discard' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dd804a4'/>
+      <elf-symbol name='mmc_can_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4309731'/>
+      <elf-symbol name='mmc_can_gpio_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff5b14a'/>
+      <elf-symbol name='mmc_can_secure_erase_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed44d19'/>
+      <elf-symbol name='mmc_can_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd085a109'/>
+      <elf-symbol name='mmc_cmdq_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1744e2c6'/>
+      <elf-symbol name='mmc_cmdq_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8dd7f62'/>
+      <elf-symbol name='mmc_cqe_post_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34d6317e'/>
+      <elf-symbol name='mmc_cqe_recovery' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x560032ea'/>
+      <elf-symbol name='mmc_cqe_request_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a718eb2'/>
+      <elf-symbol name='mmc_cqe_start_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf36e4a8'/>
+      <elf-symbol name='mmc_crypto_prepare_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b87d079'/>
+      <elf-symbol name='mmc_crypto_setup_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4d31ed3'/>
+      <elf-symbol name='mmc_detect_card_removed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fa295b2'/>
+      <elf-symbol name='mmc_detect_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x892e1a4c'/>
+      <elf-symbol name='mmc_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd7db823'/>
+      <elf-symbol name='mmc_erase_group_aligned' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9be088ab'/>
+      <elf-symbol name='mmc_flush_cache' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83e22296'/>
+      <elf-symbol name='mmc_free_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6af6e669'/>
+      <elf-symbol name='mmc_get_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31414ae6'/>
+      <elf-symbol name='mmc_get_ext_csd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0bbf3dc'/>
+      <elf-symbol name='mmc_gpio_get_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d8edf58'/>
+      <elf-symbol name='mmc_gpio_get_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e814b0b'/>
+      <elf-symbol name='mmc_gpiod_request_cd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7e5e40d'/>
+      <elf-symbol name='mmc_gpiod_request_cd_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5238a262'/>
+      <elf-symbol name='mmc_gpiod_request_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77646e45'/>
+      <elf-symbol name='mmc_hw_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d8c74e0'/>
+      <elf-symbol name='mmc_of_parse' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97adda7'/>
+      <elf-symbol name='mmc_of_parse_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee73ebd'/>
+      <elf-symbol name='mmc_put_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb693a0c'/>
+      <elf-symbol name='mmc_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38db2ffb'/>
+      <elf-symbol name='mmc_regulator_get_supply' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe505b456'/>
+      <elf-symbol name='mmc_regulator_set_ocr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3249d05'/>
+      <elf-symbol name='mmc_regulator_set_vqmmc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x808fa645'/>
+      <elf-symbol name='mmc_release_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63991529'/>
+      <elf-symbol name='mmc_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e275a5e'/>
+      <elf-symbol name='mmc_request_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x251c7384'/>
+      <elf-symbol name='mmc_retune_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8076eb93'/>
+      <elf-symbol name='mmc_retune_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7b2392a'/>
+      <elf-symbol name='mmc_retune_unpause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x213f7b13'/>
+      <elf-symbol name='mmc_run_bkops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff4d2fda'/>
+      <elf-symbol name='mmc_sanitize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb2f2a75'/>
+      <elf-symbol name='mmc_send_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1848c253'/>
+      <elf-symbol name='mmc_send_tuning' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8239fa2d'/>
+      <elf-symbol name='mmc_set_data_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda388a28'/>
+      <elf-symbol name='mmc_start_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe65f1da8'/>
+      <elf-symbol name='mmc_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6deb6944'/>
+      <elf-symbol name='mmc_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5133287'/>
+      <elf-symbol name='mmc_wait_for_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75799775'/>
+      <elf-symbol name='mmc_wait_for_req' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x611906fe'/>
       <elf-symbol name='mod_delayed_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4f47221'/>
       <elf-symbol name='mod_timer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72cd0f7f'/>
-      <elf-symbol name='module_layout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2bb6019'/>
-      <elf-symbol name='module_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7737921'/>
+      <elf-symbol name='module_layout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6584ccbd'/>
+      <elf-symbol name='module_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25cb6f1b'/>
       <elf-symbol name='msleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a482f9'/>
       <elf-symbol name='msleep_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc5005fe'/>
       <elf-symbol name='mutex_is_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d6dd0aa'/>
@@ -2183,50 +2183,50 @@
       <elf-symbol name='mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78c7940d'/>
       <elf-symbol name='mutex_trylock_recursive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40ce057b'/>
       <elf-symbol name='mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8b268ae'/>
-      <elf-symbol name='napi_complete_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7778a432'/>
-      <elf-symbol name='napi_consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x693b9d63'/>
-      <elf-symbol name='napi_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x780bbc13'/>
-      <elf-symbol name='napi_gro_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14c6ef2'/>
-      <elf-symbol name='napi_gro_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97545999'/>
-      <elf-symbol name='napi_schedule_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8c480f'/>
+      <elf-symbol name='napi_complete_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe085a34d'/>
+      <elf-symbol name='napi_consume_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x245ccc3'/>
+      <elf-symbol name='napi_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9eb39f'/>
+      <elf-symbol name='napi_gro_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa505f514'/>
+      <elf-symbol name='napi_gro_receive' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc345d74d'/>
+      <elf-symbol name='napi_schedule_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20ee099c'/>
       <elf-symbol name='net_ratelimit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6ebc03b'/>
-      <elf-symbol name='netdev_change_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83356af3'/>
-      <elf-symbol name='netdev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73c50e2b'/>
+      <elf-symbol name='netdev_change_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb2a378b'/>
+      <elf-symbol name='netdev_err' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd92185a6'/>
       <elf-symbol name='netdev_increment_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69668826'/>
-      <elf-symbol name='netdev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadf6d01b'/>
-      <elf-symbol name='netdev_lower_state_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9e2860'/>
-      <elf-symbol name='netdev_master_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ea3ab36'/>
-      <elf-symbol name='netdev_notify_peers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47ac2a96'/>
-      <elf-symbol name='netdev_pick_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ae4bd81'/>
-      <elf-symbol name='netdev_rx_handler_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58e8c698'/>
-      <elf-symbol name='netdev_rx_handler_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3048afd7'/>
-      <elf-symbol name='netdev_state_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9813e1b'/>
-      <elf-symbol name='netdev_update_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ffcffa'/>
-      <elf-symbol name='netdev_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a5213dc'/>
-      <elf-symbol name='netdev_upper_dev_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb4b463f'/>
-      <elf-symbol name='netdev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4c1f69f'/>
-      <elf-symbol name='netif_carrier_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cfe8b67'/>
-      <elf-symbol name='netif_carrier_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2868923'/>
-      <elf-symbol name='netif_device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa90cadcc'/>
-      <elf-symbol name='netif_device_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f4e088'/>
-      <elf-symbol name='netif_napi_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e7b5ffe'/>
-      <elf-symbol name='netif_receive_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x909fbe86'/>
+      <elf-symbol name='netdev_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58f07722'/>
+      <elf-symbol name='netdev_lower_state_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce24671e'/>
+      <elf-symbol name='netdev_master_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52dad657'/>
+      <elf-symbol name='netdev_notify_peers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd85e0f3f'/>
+      <elf-symbol name='netdev_pick_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92d6b22f'/>
+      <elf-symbol name='netdev_rx_handler_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6870e92'/>
+      <elf-symbol name='netdev_rx_handler_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfed4facf'/>
+      <elf-symbol name='netdev_state_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe461c7ca'/>
+      <elf-symbol name='netdev_update_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf48be857'/>
+      <elf-symbol name='netdev_upper_dev_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43df099b'/>
+      <elf-symbol name='netdev_upper_dev_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf085a7'/>
+      <elf-symbol name='netdev_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48042c4b'/>
+      <elf-symbol name='netif_carrier_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x228bfd5e'/>
+      <elf-symbol name='netif_carrier_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335b16d'/>
+      <elf-symbol name='netif_device_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x297da19'/>
+      <elf-symbol name='netif_device_detach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x253c2051'/>
+      <elf-symbol name='netif_napi_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3097e8b2'/>
+      <elf-symbol name='netif_receive_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c883843'/>
       <elf-symbol name='netif_receive_skb_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b8bf149'/>
-      <elf-symbol name='netif_rx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf05e7d27'/>
-      <elf-symbol name='netif_rx_ni' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf05f6574'/>
-      <elf-symbol name='netif_schedule_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x881ba0b1'/>
-      <elf-symbol name='netif_set_real_num_rx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b70b267'/>
-      <elf-symbol name='netif_set_real_num_tx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd88eb74e'/>
-      <elf-symbol name='netif_stacked_transfer_operstate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde46d163'/>
-      <elf-symbol name='netif_tx_stop_all_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd423589'/>
-      <elf-symbol name='netif_tx_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5fbfb30'/>
-      <elf-symbol name='netlink_broadcast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb8e12e'/>
-      <elf-symbol name='netlink_has_listeners' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fb5009a'/>
-      <elf-symbol name='netlink_kernel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xced85350'/>
+      <elf-symbol name='netif_rx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dbab0df'/>
+      <elf-symbol name='netif_rx_ni' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e249534'/>
+      <elf-symbol name='netif_schedule_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6189adbb'/>
+      <elf-symbol name='netif_set_real_num_rx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa42d70'/>
+      <elf-symbol name='netif_set_real_num_tx_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66da4c3a'/>
+      <elf-symbol name='netif_stacked_transfer_operstate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3666c558'/>
+      <elf-symbol name='netif_tx_stop_all_queues' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d516d93'/>
+      <elf-symbol name='netif_tx_wake_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x278ceafe'/>
+      <elf-symbol name='netlink_broadcast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c9f8020'/>
+      <elf-symbol name='netlink_has_listeners' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61bef9d7'/>
+      <elf-symbol name='netlink_kernel_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa6f430d'/>
       <elf-symbol name='netlink_register_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa599bb2'/>
-      <elf-symbol name='netlink_unicast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8dd63e6'/>
+      <elf-symbol name='netlink_unicast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8945931'/>
       <elf-symbol name='netlink_unregister_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf54a8f7'/>
-      <elf-symbol name='new_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x923010b5'/>
+      <elf-symbol name='new_inode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafdce37a'/>
       <elf-symbol name='nf_conntrack_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a18c74'/>
       <elf-symbol name='nla_append' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb1703fe'/>
       <elf-symbol name='nla_memcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1db1704'/>
@@ -2235,314 +2235,314 @@
       <elf-symbol name='nla_put_nohdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f78276'/>
       <elf-symbol name='nla_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96c6101e'/>
       <elf-symbol name='nla_strlcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b640864'/>
-      <elf-symbol name='no_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f47c460'/>
-      <elf-symbol name='no_seek_end_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b02e2a5'/>
-      <elf-symbol name='nonseekable_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52889361'/>
-      <elf-symbol name='noop_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f73e011'/>
+      <elf-symbol name='no_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9005c3a0'/>
+      <elf-symbol name='no_seek_end_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x753b0257'/>
+      <elf-symbol name='nonseekable_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd5f092c'/>
+      <elf-symbol name='noop_llseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7e753b7'/>
       <elf-symbol name='ns_capable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3adccc5'/>
       <elf-symbol name='ns_to_timespec64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e1e140e'/>
       <elf-symbol name='nsec_to_clock_t' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0d036a6'/>
       <elf-symbol name='nsecs_to_jiffies' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffae8e8b'/>
-      <elf-symbol name='nvdimm_bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d0c8d8c'/>
-      <elf-symbol name='nvdimm_bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33e7e17'/>
-      <elf-symbol name='nvdimm_pmem_region_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeba54664'/>
-      <elf-symbol name='nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1175fb6'/>
+      <elf-symbol name='nvdimm_bus_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe2e545d'/>
+      <elf-symbol name='nvdimm_bus_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10eb1223'/>
+      <elf-symbol name='nvdimm_pmem_region_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1cfec'/>
+      <elf-symbol name='nvmem_cell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8779bc7d'/>
       <elf-symbol name='nvmem_cell_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85540ebc'/>
       <elf-symbol name='nvmem_cell_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99f018c4'/>
       <elf-symbol name='nvmem_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8349a895'/>
       <elf-symbol name='nvmem_device_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc697b0f7'/>
       <elf-symbol name='nvmem_device_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3866e217'/>
-      <elf-symbol name='of_address_to_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd536312'/>
-      <elf-symbol name='of_alias_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf00e00af'/>
-      <elf-symbol name='of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80a3fd6b'/>
-      <elf-symbol name='of_clk_add_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf13b242'/>
-      <elf-symbol name='of_clk_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d47179e'/>
-      <elf-symbol name='of_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a3999db'/>
-      <elf-symbol name='of_clk_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5975c23'/>
-      <elf-symbol name='of_clk_get_parent_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6a79bac'/>
-      <elf-symbol name='of_clk_hw_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69fdcbb6'/>
-      <elf-symbol name='of_clk_hw_simple_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38c08c52'/>
-      <elf-symbol name='of_clk_set_defaults' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65098d8e'/>
-      <elf-symbol name='of_clk_src_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b3445a9'/>
-      <elf-symbol name='of_clk_src_simple_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53782dd5'/>
-      <elf-symbol name='of_count_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1855d504'/>
-      <elf-symbol name='of_cpu_node_to_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0e8975f'/>
-      <elf-symbol name='of_devfreq_cooling_register_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77b89bae'/>
-      <elf-symbol name='of_device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf4111a1'/>
-      <elf-symbol name='of_device_is_available' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c3633f2'/>
-      <elf-symbol name='of_device_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58daa6f1'/>
-      <elf-symbol name='of_device_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a879199'/>
-      <elf-symbol name='of_device_request_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaef16769'/>
-      <elf-symbol name='of_device_uevent_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19838bc7'/>
-      <elf-symbol name='of_dma_configure_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd35d2fc'/>
-      <elf-symbol name='of_dma_controller_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d5badf0'/>
-      <elf-symbol name='of_dma_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5cca1ed'/>
-      <elf-symbol name='of_dma_is_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11fb6ada'/>
-      <elf-symbol name='of_drm_find_bridge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42923247'/>
-      <elf-symbol name='of_drm_find_panel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9b73595'/>
-      <elf-symbol name='of_find_backlight_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x901d67d8'/>
-      <elf-symbol name='of_find_compatible_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4828f51'/>
-      <elf-symbol name='of_find_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a52d3dd'/>
-      <elf-symbol name='of_find_i2c_adapter_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x425d1e37'/>
-      <elf-symbol name='of_find_i2c_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x860438c3'/>
-      <elf-symbol name='of_find_matching_node_and_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc49236c8'/>
-      <elf-symbol name='of_find_mipi_dsi_host_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x940bf934'/>
-      <elf-symbol name='of_find_node_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64df0412'/>
-      <elf-symbol name='of_find_node_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae11483f'/>
-      <elf-symbol name='of_find_node_by_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7b005eb'/>
-      <elf-symbol name='of_find_node_opts_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2839720'/>
-      <elf-symbol name='of_find_node_with_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34ff3625'/>
-      <elf-symbol name='of_find_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a0286d3'/>
-      <elf-symbol name='of_genpd_add_provider_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fe90cd6'/>
-      <elf-symbol name='of_genpd_add_provider_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79779ae2'/>
-      <elf-symbol name='of_genpd_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b87d7e5'/>
-      <elf-symbol name='of_get_child_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e19aede'/>
-      <elf-symbol name='of_get_compatible_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x644b8aea'/>
-      <elf-symbol name='of_get_cpu_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb74cedf'/>
-      <elf-symbol name='of_get_dma_window' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51d1ab53'/>
-      <elf-symbol name='of_get_named_gpio_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28c55bf'/>
-      <elf-symbol name='of_get_next_available_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b9d5f63'/>
-      <elf-symbol name='of_get_next_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ddd45eb'/>
-      <elf-symbol name='of_get_next_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f01a01b'/>
-      <elf-symbol name='of_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6e42094'/>
-      <elf-symbol name='of_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3d97d02'/>
-      <elf-symbol name='of_get_regulator_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9f4cb1f'/>
-      <elf-symbol name='of_graph_get_endpoint_by_regs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77f4c961'/>
-      <elf-symbol name='of_graph_get_next_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a2332b5'/>
-      <elf-symbol name='of_graph_get_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fae05c6'/>
-      <elf-symbol name='of_graph_get_remote_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb79ed0f'/>
-      <elf-symbol name='of_graph_get_remote_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7c7f51f'/>
-      <elf-symbol name='of_graph_get_remote_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38071c2f'/>
-      <elf-symbol name='of_graph_is_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb380ca53'/>
-      <elf-symbol name='of_graph_parse_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c6e9a0c'/>
-      <elf-symbol name='of_hwspin_lock_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x997ec9a'/>
-      <elf-symbol name='of_icc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x910b1caf'/>
-      <elf-symbol name='of_icc_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9896434'/>
-      <elf-symbol name='of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b8082e0'/>
-      <elf-symbol name='of_irq_find_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8307c93'/>
-      <elf-symbol name='of_irq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7da6bc94'/>
-      <elf-symbol name='of_irq_get_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x716ceaf5'/>
-      <elf-symbol name='of_irq_parse_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4f9687c'/>
+      <elf-symbol name='of_address_to_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba447ae6'/>
+      <elf-symbol name='of_alias_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad53113a'/>
+      <elf-symbol name='of_clk_add_hw_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe3a2dd9'/>
+      <elf-symbol name='of_clk_add_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cec679b'/>
+      <elf-symbol name='of_clk_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd35bb493'/>
+      <elf-symbol name='of_clk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23ea0559'/>
+      <elf-symbol name='of_clk_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaaf3b41e'/>
+      <elf-symbol name='of_clk_get_parent_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3def793'/>
+      <elf-symbol name='of_clk_hw_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe088ec13'/>
+      <elf-symbol name='of_clk_hw_simple_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eccc9cb'/>
+      <elf-symbol name='of_clk_set_defaults' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2981f1d6'/>
+      <elf-symbol name='of_clk_src_onecell_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4983f58e'/>
+      <elf-symbol name='of_clk_src_simple_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60eb61b5'/>
+      <elf-symbol name='of_count_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a4cc6c3'/>
+      <elf-symbol name='of_cpu_node_to_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4e508e'/>
+      <elf-symbol name='of_devfreq_cooling_register_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5eb582b'/>
+      <elf-symbol name='of_device_get_match_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x828144ca'/>
+      <elf-symbol name='of_device_is_available' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf37d2f43'/>
+      <elf-symbol name='of_device_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4003d5dd'/>
+      <elf-symbol name='of_device_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7fb0e66'/>
+      <elf-symbol name='of_device_request_module' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e0245e4'/>
+      <elf-symbol name='of_device_uevent_modalias' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a238e60'/>
+      <elf-symbol name='of_dma_configure_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc33bdb46'/>
+      <elf-symbol name='of_dma_controller_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9f2803'/>
+      <elf-symbol name='of_dma_controller_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3729242d'/>
+      <elf-symbol name='of_dma_is_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x719fce23'/>
+      <elf-symbol name='of_drm_find_bridge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3574ff5a'/>
+      <elf-symbol name='of_drm_find_panel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45e431aa'/>
+      <elf-symbol name='of_find_backlight_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x642f5d34'/>
+      <elf-symbol name='of_find_compatible_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ae5d0a3'/>
+      <elf-symbol name='of_find_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccf101c9'/>
+      <elf-symbol name='of_find_i2c_adapter_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbfa679c'/>
+      <elf-symbol name='of_find_i2c_device_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc57e5fd'/>
+      <elf-symbol name='of_find_matching_node_and_match' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb414eca'/>
+      <elf-symbol name='of_find_mipi_dsi_host_by_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d7755e8'/>
+      <elf-symbol name='of_find_node_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xedc65622'/>
+      <elf-symbol name='of_find_node_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7cd606e'/>
+      <elf-symbol name='of_find_node_by_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ea957db'/>
+      <elf-symbol name='of_find_node_opts_by_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18fa47b9'/>
+      <elf-symbol name='of_find_node_with_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1a39539'/>
+      <elf-symbol name='of_find_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57049820'/>
+      <elf-symbol name='of_genpd_add_provider_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x389cc6c3'/>
+      <elf-symbol name='of_genpd_add_provider_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2179df33'/>
+      <elf-symbol name='of_genpd_del_provider' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff850bd'/>
+      <elf-symbol name='of_get_child_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb450dc2'/>
+      <elf-symbol name='of_get_compatible_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9680228e'/>
+      <elf-symbol name='of_get_cpu_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab2db3cf'/>
+      <elf-symbol name='of_get_dma_window' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e1558f1'/>
+      <elf-symbol name='of_get_named_gpio_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6259b46c'/>
+      <elf-symbol name='of_get_next_available_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63284d53'/>
+      <elf-symbol name='of_get_next_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4413259'/>
+      <elf-symbol name='of_get_next_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb01edd0'/>
+      <elf-symbol name='of_get_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaac63be1'/>
+      <elf-symbol name='of_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe04c6135'/>
+      <elf-symbol name='of_get_regulator_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f5ca32c'/>
+      <elf-symbol name='of_graph_get_endpoint_by_regs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc3c83c6'/>
+      <elf-symbol name='of_graph_get_next_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x907c53cb'/>
+      <elf-symbol name='of_graph_get_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd26c3673'/>
+      <elf-symbol name='of_graph_get_remote_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49304a36'/>
+      <elf-symbol name='of_graph_get_remote_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc52d0024'/>
+      <elf-symbol name='of_graph_get_remote_port_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdfb1168'/>
+      <elf-symbol name='of_graph_is_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe54a8eba'/>
+      <elf-symbol name='of_graph_parse_endpoint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22479157'/>
+      <elf-symbol name='of_hwspin_lock_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ae29f64'/>
+      <elf-symbol name='of_icc_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2567f7c9'/>
+      <elf-symbol name='of_icc_xlate_onecell' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb66814d6'/>
+      <elf-symbol name='of_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa15b8b2'/>
+      <elf-symbol name='of_irq_find_parent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x481bc310'/>
+      <elf-symbol name='of_irq_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x823f2a2b'/>
+      <elf-symbol name='of_irq_get_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb5cb2f3'/>
+      <elf-symbol name='of_irq_parse_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf19111a9'/>
       <elf-symbol name='of_machine_is_compatible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd31ccb06'/>
-      <elf-symbol name='of_match_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd87b770'/>
-      <elf-symbol name='of_match_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30521123'/>
-      <elf-symbol name='of_n_addr_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0e8bee0'/>
-      <elf-symbol name='of_n_size_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8691c497'/>
-      <elf-symbol name='of_node_name_eq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4940e06b'/>
-      <elf-symbol name='of_nvmem_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe64b92a4'/>
-      <elf-symbol name='of_parse_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10801119'/>
-      <elf-symbol name='of_parse_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe02264d'/>
-      <elf-symbol name='of_parse_phandle_with_fixed_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaff12ff'/>
-      <elf-symbol name='of_phandle_iterator_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe047f24'/>
-      <elf-symbol name='of_phandle_iterator_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98ce8fa7'/>
-      <elf-symbol name='of_phy_simple_xlate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb57ce197'/>
-      <elf-symbol name='of_platform_depopulate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77c8254f'/>
-      <elf-symbol name='of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec1f5899'/>
-      <elf-symbol name='of_prop_next_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77494761'/>
-      <elf-symbol name='of_prop_next_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba578b7'/>
-      <elf-symbol name='of_property_count_elems_of_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda7aeddf'/>
-      <elf-symbol name='of_property_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87dcb80'/>
-      <elf-symbol name='of_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90f4b03d'/>
-      <elf-symbol name='of_property_read_string_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa0583f0'/>
-      <elf-symbol name='of_property_read_u32_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x199ec3de'/>
-      <elf-symbol name='of_property_read_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd4af222'/>
-      <elf-symbol name='of_property_read_u64_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65747ee'/>
-      <elf-symbol name='of_property_read_variable_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7fa5bb2'/>
-      <elf-symbol name='of_property_read_variable_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1736c96'/>
-      <elf-symbol name='of_property_read_variable_u64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb4c0dde'/>
-      <elf-symbol name='of_property_read_variable_u8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a21802'/>
-      <elf-symbol name='of_pwm_xlate_with_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x720a16d3'/>
-      <elf-symbol name='of_reserved_mem_device_init_by_idx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24e58960'/>
-      <elf-symbol name='of_reserved_mem_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x729ea2e8'/>
-      <elf-symbol name='of_reserved_mem_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5eef533'/>
-      <elf-symbol name='of_thermal_get_ntrips' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93d57242'/>
-      <elf-symbol name='of_thermal_get_trip_points' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18a3bfd6'/>
-      <elf-symbol name='of_thermal_is_trip_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a4eb5f1'/>
-      <elf-symbol name='of_translate_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c4763e4'/>
-      <elf-symbol name='of_usb_host_tpl_support' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe58719b1'/>
-      <elf-symbol name='open_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab8f519'/>
+      <elf-symbol name='of_match_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa54bf13f'/>
+      <elf-symbol name='of_match_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c02cac8'/>
+      <elf-symbol name='of_n_addr_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe497d085'/>
+      <elf-symbol name='of_n_size_cells' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64086790'/>
+      <elf-symbol name='of_node_name_eq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5941d7'/>
+      <elf-symbol name='of_nvmem_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4ce185d'/>
+      <elf-symbol name='of_parse_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9283b4a'/>
+      <elf-symbol name='of_parse_phandle_with_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99a2d743'/>
+      <elf-symbol name='of_parse_phandle_with_fixed_args' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4bb94dd'/>
+      <elf-symbol name='of_phandle_iterator_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8a83148'/>
+      <elf-symbol name='of_phandle_iterator_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2539803'/>
+      <elf-symbol name='of_phy_simple_xlate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafdc1b20'/>
+      <elf-symbol name='of_platform_depopulate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc316b93d'/>
+      <elf-symbol name='of_platform_populate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe342539a'/>
+      <elf-symbol name='of_prop_next_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25b4df6d'/>
+      <elf-symbol name='of_prop_next_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd53681c8'/>
+      <elf-symbol name='of_property_count_elems_of_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcefff7c2'/>
+      <elf-symbol name='of_property_match_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdaf28a14'/>
+      <elf-symbol name='of_property_read_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7937b9c'/>
+      <elf-symbol name='of_property_read_string_helper' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc102b13'/>
+      <elf-symbol name='of_property_read_u32_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x308f7271'/>
+      <elf-symbol name='of_property_read_u64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x846bec7e'/>
+      <elf-symbol name='of_property_read_u64_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe750dbd5'/>
+      <elf-symbol name='of_property_read_variable_u16_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca98dc06'/>
+      <elf-symbol name='of_property_read_variable_u32_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x364e8e3d'/>
+      <elf-symbol name='of_property_read_variable_u64_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc70fc439'/>
+      <elf-symbol name='of_property_read_variable_u8_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6731048a'/>
+      <elf-symbol name='of_pwm_xlate_with_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb71fe103'/>
+      <elf-symbol name='of_reserved_mem_device_init_by_idx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49c41ba8'/>
+      <elf-symbol name='of_reserved_mem_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70e9e591'/>
+      <elf-symbol name='of_reserved_mem_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd75d629'/>
+      <elf-symbol name='of_thermal_get_ntrips' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e5b464d'/>
+      <elf-symbol name='of_thermal_get_trip_points' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57867109'/>
+      <elf-symbol name='of_thermal_is_trip_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5af3607c'/>
+      <elf-symbol name='of_translate_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d119a13'/>
+      <elf-symbol name='of_usb_host_tpl_support' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae6b0382'/>
+      <elf-symbol name='open_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4af7edc'/>
       <elf-symbol name='out_of_line_wait_on_bit_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4071b517'/>
-      <elf-symbol name='page_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec728214'/>
+      <elf-symbol name='page_endio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbae40e1e'/>
       <elf-symbol name='page_frag_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc306c3a8'/>
       <elf-symbol name='page_frag_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88e1d0f0'/>
-      <elf-symbol name='page_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63fcac7a'/>
+      <elf-symbol name='page_mapping' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e3d06c3'/>
       <elf-symbol name='panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1e046cc'/>
-      <elf-symbol name='param_get_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4d5952d'/>
-      <elf-symbol name='param_get_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x268120f7'/>
-      <elf-symbol name='param_get_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c43fc4d'/>
-      <elf-symbol name='param_set_copystring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf41de0c6'/>
-      <elf-symbol name='param_set_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48e725b3'/>
-      <elf-symbol name='param_set_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb77a54'/>
-      <elf-symbol name='passthru_features_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc486d37'/>
+      <elf-symbol name='param_get_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa81b7e85'/>
+      <elf-symbol name='param_get_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fefb480'/>
+      <elf-symbol name='param_get_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf67c958f'/>
+      <elf-symbol name='param_set_copystring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c914908'/>
+      <elf-symbol name='param_set_int' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2c184e1'/>
+      <elf-symbol name='param_set_uint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb320144'/>
+      <elf-symbol name='passthru_features_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fbf967c'/>
       <elf-symbol name='pause_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1f3509f'/>
-      <elf-symbol name='pci_alloc_irq_vectors_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd47c9dd6'/>
-      <elf-symbol name='pci_assign_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5d1de0b'/>
-      <elf-symbol name='pci_clear_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a6e7793'/>
-      <elf-symbol name='pci_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f02cd3'/>
-      <elf-symbol name='pci_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb062cb86'/>
-      <elf-symbol name='pci_device_is_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92ee3a76'/>
-      <elf-symbol name='pci_disable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fa9c385'/>
-      <elf-symbol name='pci_disable_msi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38ace6b4'/>
-      <elf-symbol name='pci_disable_pcie_error_reporting' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9e82a70'/>
-      <elf-symbol name='pci_disable_sriov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd204beaf'/>
-      <elf-symbol name='pci_enable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa447b6b9'/>
-      <elf-symbol name='pci_enable_device_mem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x877fca69'/>
-      <elf-symbol name='pci_enable_msi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1173c233'/>
-      <elf-symbol name='pci_enable_pcie_error_reporting' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabd78458'/>
-      <elf-symbol name='pci_enable_sriov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd354212'/>
-      <elf-symbol name='pci_enable_wake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4223e649'/>
-      <elf-symbol name='pci_find_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9f0cd42'/>
-      <elf-symbol name='pci_find_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdc1bb0f'/>
-      <elf-symbol name='pci_find_ext_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86f0cffa'/>
-      <elf-symbol name='pci_find_next_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2627f8'/>
-      <elf-symbol name='pci_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x554e5b4b'/>
-      <elf-symbol name='pci_free_irq_vectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2a52e06'/>
-      <elf-symbol name='pci_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5413bc1d'/>
-      <elf-symbol name='pci_get_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa07b224'/>
-      <elf-symbol name='pci_intx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x865f2f1a'/>
-      <elf-symbol name='pci_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa54a9c59'/>
-      <elf-symbol name='pci_iomap_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fb65876'/>
-      <elf-symbol name='pci_ioremap_bar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca6e9a9a'/>
-      <elf-symbol name='pci_irq_get_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b5d5915'/>
-      <elf-symbol name='pci_irq_vector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b106342'/>
-      <elf-symbol name='pci_load_and_free_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6f8e089'/>
-      <elf-symbol name='pci_load_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4aa4c6d'/>
-      <elf-symbol name='pci_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9120aba5'/>
-      <elf-symbol name='pci_msi_mask_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38925c53'/>
-      <elf-symbol name='pci_msi_unmask_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5013c66'/>
-      <elf-symbol name='pci_read_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e1bcb9d'/>
-      <elf-symbol name='pci_read_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39814b73'/>
-      <elf-symbol name='pci_read_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d7bcc72'/>
-      <elf-symbol name='pci_release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb062f1c'/>
-      <elf-symbol name='pci_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75addc14'/>
-      <elf-symbol name='pci_release_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ada645'/>
-      <elf-symbol name='pci_request_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2af02af6'/>
-      <elf-symbol name='pci_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e8a5adf'/>
-      <elf-symbol name='pci_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9216bdf7'/>
-      <elf-symbol name='pci_request_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x140b320c'/>
-      <elf-symbol name='pci_rescan_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c654c85'/>
-      <elf-symbol name='pci_restore_msi_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92cb74b7'/>
-      <elf-symbol name='pci_restore_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73b10da0'/>
-      <elf-symbol name='pci_save_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6198bf0'/>
-      <elf-symbol name='pci_select_bars' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb48f2142'/>
-      <elf-symbol name='pci_set_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef4dc76b'/>
-      <elf-symbol name='pci_set_power_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76a7f9ca'/>
-      <elf-symbol name='pci_sriov_configure_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce743c9'/>
-      <elf-symbol name='pci_store_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1968cd3'/>
-      <elf-symbol name='pci_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbedaa9a9'/>
-      <elf-symbol name='pci_vfs_assigned' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34cd72b3'/>
-      <elf-symbol name='pci_wake_from_d3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44ce128a'/>
-      <elf-symbol name='pci_write_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x797f1912'/>
-      <elf-symbol name='pci_write_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x104b5b10'/>
-      <elf-symbol name='pci_write_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fad1dd9'/>
-      <elf-symbol name='pcibios_resource_to_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32b19c7b'/>
-      <elf-symbol name='pcie_aspm_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x981ee4d9'/>
-      <elf-symbol name='pcie_capability_read_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dea9319'/>
-      <elf-symbol name='pcie_capability_write_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff2f725'/>
-      <elf-symbol name='perf_aux_output_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31a03dc1'/>
-      <elf-symbol name='perf_aux_output_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84f38d9e'/>
-      <elf-symbol name='perf_aux_output_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2694940f'/>
-      <elf-symbol name='perf_event_addr_filters_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c44d853'/>
-      <elf-symbol name='perf_event_create_kernel_counter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5e64022'/>
-      <elf-symbol name='perf_event_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13458d60'/>
-      <elf-symbol name='perf_event_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe20af356'/>
-      <elf-symbol name='perf_event_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d799eb0'/>
-      <elf-symbol name='perf_event_read_local' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3925c7d4'/>
-      <elf-symbol name='perf_event_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6d46b85'/>
-      <elf-symbol name='perf_event_release_kernel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9148a53a'/>
-      <elf-symbol name='perf_event_update_userpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1adffcf'/>
-      <elf-symbol name='perf_get_aux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77eb63b'/>
-      <elf-symbol name='perf_pmu_migrate_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32e97227'/>
-      <elf-symbol name='perf_pmu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50a3b076'/>
-      <elf-symbol name='perf_pmu_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa6fe22b'/>
+      <elf-symbol name='pci_alloc_irq_vectors_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f2b7a5d'/>
+      <elf-symbol name='pci_assign_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c88cd5d'/>
+      <elf-symbol name='pci_clear_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f824a03'/>
+      <elf-symbol name='pci_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d34cfc6'/>
+      <elf-symbol name='pci_device_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb00d8b0'/>
+      <elf-symbol name='pci_device_is_present' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbce438ef'/>
+      <elf-symbol name='pci_disable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb993ad5e'/>
+      <elf-symbol name='pci_disable_msi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5e2a0ac'/>
+      <elf-symbol name='pci_disable_pcie_error_reporting' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd64b032a'/>
+      <elf-symbol name='pci_disable_sriov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8eee4cef'/>
+      <elf-symbol name='pci_enable_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x630749c1'/>
+      <elf-symbol name='pci_enable_device_mem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4999a6f'/>
+      <elf-symbol name='pci_enable_msi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd2819a'/>
+      <elf-symbol name='pci_enable_pcie_error_reporting' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x494bffd1'/>
+      <elf-symbol name='pci_enable_sriov' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa3c73a9'/>
+      <elf-symbol name='pci_enable_wake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67f2e525'/>
+      <elf-symbol name='pci_find_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x924b0896'/>
+      <elf-symbol name='pci_find_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x381f1558'/>
+      <elf-symbol name='pci_find_ext_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fd46263'/>
+      <elf-symbol name='pci_find_next_capability' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83134977'/>
+      <elf-symbol name='pci_free_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36141e7c'/>
+      <elf-symbol name='pci_free_irq_vectors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22b49e3f'/>
+      <elf-symbol name='pci_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6d2a8e9'/>
+      <elf-symbol name='pci_get_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c86309a'/>
+      <elf-symbol name='pci_intx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0d425b5'/>
+      <elf-symbol name='pci_iomap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d733d99'/>
+      <elf-symbol name='pci_iomap_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0875e0'/>
+      <elf-symbol name='pci_ioremap_bar' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2a7e3ea'/>
+      <elf-symbol name='pci_irq_get_affinity' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc008f3c'/>
+      <elf-symbol name='pci_irq_vector' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48b2f94b'/>
+      <elf-symbol name='pci_load_and_free_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd55e5156'/>
+      <elf-symbol name='pci_load_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x908f6d21'/>
+      <elf-symbol name='pci_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9dbde894'/>
+      <elf-symbol name='pci_msi_mask_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x105ec96c'/>
+      <elf-symbol name='pci_msi_unmask_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac370b0d'/>
+      <elf-symbol name='pci_read_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28d72203'/>
+      <elf-symbol name='pci_read_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44814d12'/>
+      <elf-symbol name='pci_read_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0a824f6'/>
+      <elf-symbol name='pci_release_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33bb46a1'/>
+      <elf-symbol name='pci_release_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb05c4618'/>
+      <elf-symbol name='pci_release_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5897afed'/>
+      <elf-symbol name='pci_request_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e37178f'/>
+      <elf-symbol name='pci_request_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6623505e'/>
+      <elf-symbol name='pci_request_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6156e345'/>
+      <elf-symbol name='pci_request_selected_regions' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a06919c'/>
+      <elf-symbol name='pci_rescan_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x240797b0'/>
+      <elf-symbol name='pci_restore_msi_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eff5531'/>
+      <elf-symbol name='pci_restore_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x266476bf'/>
+      <elf-symbol name='pci_save_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb823884c'/>
+      <elf-symbol name='pci_select_bars' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a05dff5'/>
+      <elf-symbol name='pci_set_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf7c497c'/>
+      <elf-symbol name='pci_set_power_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86922480'/>
+      <elf-symbol name='pci_sriov_configure_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8d2b896'/>
+      <elf-symbol name='pci_store_saved_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf685e5af'/>
+      <elf-symbol name='pci_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ef6846b'/>
+      <elf-symbol name='pci_vfs_assigned' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x190892b1'/>
+      <elf-symbol name='pci_wake_from_d3' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d967b63'/>
+      <elf-symbol name='pci_write_config_byte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56147e1c'/>
+      <elf-symbol name='pci_write_config_dword' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ec6d294'/>
+      <elf-symbol name='pci_write_config_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa982a57a'/>
+      <elf-symbol name='pcibios_resource_to_bus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c3aa6cf'/>
+      <elf-symbol name='pcie_aspm_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73b08533'/>
+      <elf-symbol name='pcie_capability_read_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x569973f7'/>
+      <elf-symbol name='pcie_capability_write_word' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x25ddec09'/>
+      <elf-symbol name='perf_aux_output_begin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67bcaa0d'/>
+      <elf-symbol name='perf_aux_output_end' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcee5a88c'/>
+      <elf-symbol name='perf_aux_output_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe08c88bb'/>
+      <elf-symbol name='perf_event_addr_filters_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf4bbacc'/>
+      <elf-symbol name='perf_event_create_kernel_counter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ca7586'/>
+      <elf-symbol name='perf_event_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52e2b05d'/>
+      <elf-symbol name='perf_event_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12148514'/>
+      <elf-symbol name='perf_event_pause' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2b37e9c'/>
+      <elf-symbol name='perf_event_read_local' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa13af5a'/>
+      <elf-symbol name='perf_event_read_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe346cdff'/>
+      <elf-symbol name='perf_event_release_kernel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43c1ebf6'/>
+      <elf-symbol name='perf_event_update_userpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc80ddc60'/>
+      <elf-symbol name='perf_get_aux' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0429bc3'/>
+      <elf-symbol name='perf_pmu_migrate_context' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf86556f1'/>
+      <elf-symbol name='perf_pmu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48c9dee4'/>
+      <elf-symbol name='perf_pmu_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8da3b53c'/>
       <elf-symbol name='perf_trace_buf_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb8a6e1b'/>
-      <elf-symbol name='perf_trace_run_bpf_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf225e92a'/>
+      <elf-symbol name='perf_trace_run_bpf_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3c2620'/>
       <elf-symbol name='pfn_valid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51e77c97'/>
-      <elf-symbol name='phy_calibrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb65c2fd2'/>
-      <elf-symbol name='phy_configure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b53d615'/>
-      <elf-symbol name='phy_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1281ae66'/>
-      <elf-symbol name='phy_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7422b4f4'/>
-      <elf-symbol name='phy_power_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22e9d1f5'/>
-      <elf-symbol name='phy_power_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67665973'/>
-      <elf-symbol name='phy_set_mode_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2176859d'/>
-      <elf-symbol name='pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1d07b6a'/>
-      <elf-symbol name='pin_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f47b30'/>
-      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3e55532'/>
-      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfb2b40a'/>
-      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35db23f0'/>
-      <elf-symbol name='pinconf_generic_dt_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f84483f'/>
-      <elf-symbol name='pinconf_generic_dt_node_to_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ed99bb2'/>
-      <elf-symbol name='pinctrl_add_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93f9fca6'/>
-      <elf-symbol name='pinctrl_dev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf88afe84'/>
-      <elf-symbol name='pinctrl_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24b6d5e8'/>
-      <elf-symbol name='pinctrl_force_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf0189a2'/>
-      <elf-symbol name='pinctrl_force_sleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc473686'/>
-      <elf-symbol name='pinctrl_lookup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x325642d7'/>
-      <elf-symbol name='pinctrl_pm_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42a7ff7e'/>
-      <elf-symbol name='pinctrl_pm_select_idle_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58d20c84'/>
-      <elf-symbol name='pinctrl_pm_select_sleep_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa330acf2'/>
-      <elf-symbol name='pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce061463'/>
-      <elf-symbol name='pinctrl_remove_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a5a18d0'/>
-      <elf-symbol name='pinctrl_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35ce98f7'/>
-      <elf-symbol name='pinctrl_select_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb038e05b'/>
-      <elf-symbol name='pinctrl_utils_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e79fadb'/>
-      <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1cf7fcf'/>
-      <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf4d722d'/>
-      <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d58254f'/>
+      <elf-symbol name='phy_calibrate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcec0d37'/>
+      <elf-symbol name='phy_configure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x859f8c93'/>
+      <elf-symbol name='phy_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x618dbdc6'/>
+      <elf-symbol name='phy_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4af58f03'/>
+      <elf-symbol name='phy_power_off' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x235ff888'/>
+      <elf-symbol name='phy_power_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x202cac6d'/>
+      <elf-symbol name='phy_set_mode_ext' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x674330ee'/>
+      <elf-symbol name='pid_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb01f6010'/>
+      <elf-symbol name='pin_get_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8e38dc9'/>
+      <elf-symbol name='pin_user_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbace5384'/>
+      <elf-symbol name='pin_user_pages_fast' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e29dd53'/>
+      <elf-symbol name='pin_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7811705'/>
+      <elf-symbol name='pinconf_generic_dt_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f891082'/>
+      <elf-symbol name='pinconf_generic_dt_node_to_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4840cbec'/>
+      <elf-symbol name='pinctrl_add_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a3c7f35'/>
+      <elf-symbol name='pinctrl_dev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x218aee2a'/>
+      <elf-symbol name='pinctrl_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff738ed'/>
+      <elf-symbol name='pinctrl_force_default' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa004bbe'/>
+      <elf-symbol name='pinctrl_force_sleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad839908'/>
+      <elf-symbol name='pinctrl_lookup_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41c2ae73'/>
+      <elf-symbol name='pinctrl_pm_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb15191c2'/>
+      <elf-symbol name='pinctrl_pm_select_idle_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f055b26'/>
+      <elf-symbol name='pinctrl_pm_select_sleep_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2575383'/>
+      <elf-symbol name='pinctrl_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x706d4fc9'/>
+      <elf-symbol name='pinctrl_remove_gpio_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x323bd44'/>
+      <elf-symbol name='pinctrl_select_default_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7590b286'/>
+      <elf-symbol name='pinctrl_select_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbcfe984b'/>
+      <elf-symbol name='pinctrl_utils_free_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x328c3ffa'/>
+      <elf-symbol name='pipe_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f47006b'/>
+      <elf-symbol name='pipe_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf75590c'/>
+      <elf-symbol name='pktgen_xfrm_outer_mode_output' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67692f15'/>
       <elf-symbol name='pkvm_iommu_finalize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23d83c25'/>
-      <elf-symbol name='pkvm_iommu_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff696ab2'/>
-      <elf-symbol name='pkvm_iommu_s2mpu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d486258'/>
-      <elf-symbol name='pkvm_iommu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2554db42'/>
-      <elf-symbol name='pkvm_iommu_sysmmu_sync_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76fa4991'/>
-      <elf-symbol name='platform_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1f2d2e8'/>
-      <elf-symbol name='platform_device_add_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb05eda59'/>
-      <elf-symbol name='platform_device_add_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5988706b'/>
-      <elf-symbol name='platform_device_add_resources' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bc0af14'/>
-      <elf-symbol name='platform_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59661a9a'/>
-      <elf-symbol name='platform_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54cf6797'/>
-      <elf-symbol name='platform_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aa01b1c'/>
-      <elf-symbol name='platform_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7995196'/>
-      <elf-symbol name='platform_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60d9945d'/>
-      <elf-symbol name='platform_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b57e2af'/>
-      <elf-symbol name='platform_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa68d9972'/>
-      <elf-symbol name='platform_find_device_by_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0a38a7e'/>
-      <elf-symbol name='platform_get_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc53f9942'/>
-      <elf-symbol name='platform_get_irq_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x396372e2'/>
-      <elf-symbol name='platform_get_irq_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b573a21'/>
-      <elf-symbol name='platform_get_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f311667'/>
-      <elf-symbol name='platform_get_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d30b61a'/>
-      <elf-symbol name='platform_irq_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc2025d0'/>
-      <elf-symbol name='pm_generic_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe666edc1'/>
-      <elf-symbol name='pm_generic_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a1fcfa7'/>
-      <elf-symbol name='pm_genpd_add_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8491508e'/>
-      <elf-symbol name='pm_genpd_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5f5914c'/>
-      <elf-symbol name='pm_genpd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1050965f'/>
-      <elf-symbol name='pm_genpd_remove_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f17ac82'/>
-      <elf-symbol name='pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c90d977'/>
-      <elf-symbol name='pm_runtime_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9572674c'/>
-      <elf-symbol name='pm_runtime_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec734387'/>
-      <elf-symbol name='pm_runtime_forbid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x191f59'/>
-      <elf-symbol name='pm_runtime_force_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62c37db5'/>
-      <elf-symbol name='pm_runtime_force_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69bbf0ea'/>
-      <elf-symbol name='pm_runtime_get_if_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78ad1eea'/>
-      <elf-symbol name='pm_runtime_irq_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x83b44ab9'/>
-      <elf-symbol name='pm_runtime_set_autosuspend_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1066b1b'/>
-      <elf-symbol name='pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1595eb5'/>
+      <elf-symbol name='pkvm_iommu_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b4c7d8e'/>
+      <elf-symbol name='pkvm_iommu_s2mpu_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf82580d'/>
+      <elf-symbol name='pkvm_iommu_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3babda3'/>
+      <elf-symbol name='pkvm_iommu_sysmmu_sync_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f596a6c'/>
+      <elf-symbol name='platform_device_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6b7d45b'/>
+      <elf-symbol name='platform_device_add_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ca19aca'/>
+      <elf-symbol name='platform_device_add_properties' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44d6259e'/>
+      <elf-symbol name='platform_device_add_resources' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f2805f4'/>
+      <elf-symbol name='platform_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa86ae975'/>
+      <elf-symbol name='platform_device_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd24cb76'/>
+      <elf-symbol name='platform_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebcafd0a'/>
+      <elf-symbol name='platform_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24130c5e'/>
+      <elf-symbol name='platform_device_register_full' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cd5aad6'/>
+      <elf-symbol name='platform_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ab41eae'/>
+      <elf-symbol name='platform_driver_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x658f39fc'/>
+      <elf-symbol name='platform_find_device_by_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34577f94'/>
+      <elf-symbol name='platform_get_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68f6056f'/>
+      <elf-symbol name='platform_get_irq_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb492249d'/>
+      <elf-symbol name='platform_get_irq_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4767b8a0'/>
+      <elf-symbol name='platform_get_resource' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbeab09a7'/>
+      <elf-symbol name='platform_get_resource_byname' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8499ef4'/>
+      <elf-symbol name='platform_irq_count' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31c1b5fa'/>
+      <elf-symbol name='pm_generic_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x618572ba'/>
+      <elf-symbol name='pm_generic_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0f1beb5'/>
+      <elf-symbol name='pm_genpd_add_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55edcca6'/>
+      <elf-symbol name='pm_genpd_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdad8980c'/>
+      <elf-symbol name='pm_genpd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3cf61f09'/>
+      <elf-symbol name='pm_genpd_remove_subdomain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1fb863'/>
+      <elf-symbol name='pm_relax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafe749f1'/>
+      <elf-symbol name='pm_runtime_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d1ee0d6'/>
+      <elf-symbol name='pm_runtime_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8faeff4e'/>
+      <elf-symbol name='pm_runtime_forbid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0ff2134'/>
+      <elf-symbol name='pm_runtime_force_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bf71248'/>
+      <elf-symbol name='pm_runtime_force_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21145666'/>
+      <elf-symbol name='pm_runtime_get_if_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3054296'/>
+      <elf-symbol name='pm_runtime_irq_safe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf176571'/>
+      <elf-symbol name='pm_runtime_set_autosuspend_delay' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656957e1'/>
+      <elf-symbol name='pm_stay_awake' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1889637'/>
       <elf-symbol name='pm_system_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c0215f2'/>
-      <elf-symbol name='pm_wakeup_dev_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff1bbf5'/>
-      <elf-symbol name='pm_wakeup_ws_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5615cf19'/>
-      <elf-symbol name='policy_has_boost_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33493944'/>
-      <elf-symbol name='power_supply_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a76c3ea'/>
-      <elf-symbol name='power_supply_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40503578'/>
-      <elf-symbol name='power_supply_get_by_phandle_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd7ead3d'/>
-      <elf-symbol name='power_supply_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dc8146b'/>
-      <elf-symbol name='power_supply_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60943367'/>
-      <elf-symbol name='power_supply_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc24bdd09'/>
+      <elf-symbol name='pm_wakeup_dev_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eae5132'/>
+      <elf-symbol name='pm_wakeup_ws_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8683206e'/>
+      <elf-symbol name='policy_has_boost_freq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81425ede'/>
+      <elf-symbol name='power_supply_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9a2d405'/>
+      <elf-symbol name='power_supply_get_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21e44ee'/>
+      <elf-symbol name='power_supply_get_by_phandle_array' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec0255fe'/>
+      <elf-symbol name='power_supply_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x268770e3'/>
+      <elf-symbol name='power_supply_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfb9f2a5'/>
+      <elf-symbol name='power_supply_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdce93514'/>
       <elf-symbol name='power_supply_reg_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x136209db'/>
-      <elf-symbol name='power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1de4c26'/>
-      <elf-symbol name='power_supply_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f0e79f9'/>
+      <elf-symbol name='power_supply_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcddcbe79'/>
+      <elf-symbol name='power_supply_set_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb51b0b1'/>
       <elf-symbol name='power_supply_unreg_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b81c38b'/>
-      <elf-symbol name='power_supply_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdde4d597'/>
+      <elf-symbol name='power_supply_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33410d35'/>
       <elf-symbol name='prandom_bytes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa99b39c2'/>
       <elf-symbol name='prandom_u32' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfda9581f'/>
       <elf-symbol name='preempt_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43b0c9c3'/>
@@ -2552,42 +2552,42 @@
       <elf-symbol name='print_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x167c5967'/>
       <elf-symbol name='printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5850110'/>
       <elf-symbol name='printk_deferred' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd98307f5'/>
-      <elf-symbol name='proc_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f8e3745'/>
-      <elf-symbol name='proc_create_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72658149'/>
-      <elf-symbol name='proc_create_single_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x490d94c1'/>
+      <elf-symbol name='proc_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9d293f6'/>
+      <elf-symbol name='proc_create_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5b56c36'/>
+      <elf-symbol name='proc_create_single_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9cdd39'/>
       <elf-symbol name='proc_dointvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8181adf'/>
       <elf-symbol name='proc_dostring' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x319d493d'/>
       <elf-symbol name='proc_douintvec_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x638aff11'/>
-      <elf-symbol name='proc_mkdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcba6ef37'/>
-      <elf-symbol name='proc_mkdir_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadbfc412'/>
-      <elf-symbol name='proc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeffe481b'/>
-      <elf-symbol name='proc_set_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d54f8f7'/>
-      <elf-symbol name='proto_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c27d7ec'/>
-      <elf-symbol name='proto_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e7f80c2'/>
-      <elf-symbol name='ps2_begin_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e280db6'/>
-      <elf-symbol name='ps2_cmd_aborted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2480b9d'/>
-      <elf-symbol name='ps2_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8101ce02'/>
-      <elf-symbol name='ps2_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4feaf56f'/>
-      <elf-symbol name='ps2_end_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7046db07'/>
-      <elf-symbol name='ps2_handle_ack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c719b3a'/>
-      <elf-symbol name='ps2_handle_response' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf90e3661'/>
-      <elf-symbol name='ps2_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x237eb0b0'/>
-      <elf-symbol name='ps2_sendbyte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ddc0e52'/>
-      <elf-symbol name='ps2_sliced_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a21696f'/>
-      <elf-symbol name='pskb_expand_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71db7378'/>
-      <elf-symbol name='put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x28a72d6a'/>
-      <elf-symbol name='put_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x338f5828'/>
-      <elf-symbol name='put_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f96ea55'/>
+      <elf-symbol name='proc_mkdir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71962f2'/>
+      <elf-symbol name='proc_mkdir_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdbd5626'/>
+      <elf-symbol name='proc_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9c214e2'/>
+      <elf-symbol name='proc_set_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9b58ed5a'/>
+      <elf-symbol name='proto_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x541d6ee9'/>
+      <elf-symbol name='proto_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd48c14c3'/>
+      <elf-symbol name='ps2_begin_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37b78d12'/>
+      <elf-symbol name='ps2_cmd_aborted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0447bdf'/>
+      <elf-symbol name='ps2_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa23bd644'/>
+      <elf-symbol name='ps2_drain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60445188'/>
+      <elf-symbol name='ps2_end_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b5d1e1'/>
+      <elf-symbol name='ps2_handle_ack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x335daee9'/>
+      <elf-symbol name='ps2_handle_response' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84580559'/>
+      <elf-symbol name='ps2_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeab7d5'/>
+      <elf-symbol name='ps2_sendbyte' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65c7c78f'/>
+      <elf-symbol name='ps2_sliced_command' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5fef2d5'/>
+      <elf-symbol name='pskb_expand_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d13a275'/>
+      <elf-symbol name='put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc25ff85a'/>
+      <elf-symbol name='put_disk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x657b28bf'/>
+      <elf-symbol name='put_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35daa920'/>
       <elf-symbol name='put_sg_io_hdr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec4aee6'/>
       <elf-symbol name='put_unused_fd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f4547a7'/>
       <elf-symbol name='put_vaddr_frames' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b700d37'/>
-      <elf-symbol name='pwm_apply_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4222c0f'/>
-      <elf-symbol name='pwm_get_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x231c3875'/>
-      <elf-symbol name='pwm_set_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa52f9bb9'/>
-      <elf-symbol name='pwmchip_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf12952d3'/>
-      <elf-symbol name='pwmchip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40937172'/>
-      <elf-symbol name='qcom_smem_state_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x976ee98d'/>
-      <elf-symbol name='qcom_smem_state_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23f4250e'/>
+      <elf-symbol name='pwm_apply_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebde933f'/>
+      <elf-symbol name='pwm_get_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55a2758e'/>
+      <elf-symbol name='pwm_set_chip_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ff69a9c'/>
+      <elf-symbol name='pwmchip_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1029220'/>
+      <elf-symbol name='pwmchip_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10fbade6'/>
+      <elf-symbol name='qcom_smem_state_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f4bcc87'/>
+      <elf-symbol name='qcom_smem_state_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9396e1c1'/>
       <elf-symbol name='qcom_smem_state_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4561f990'/>
       <elf-symbol name='qcom_smem_state_update_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf730fb4a'/>
       <elf-symbol name='queue_delayed_work_on' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf57e89e'/>
@@ -2610,112 +2610,112 @@
       <elf-symbol name='rb_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9360b5'/>
       <elf-symbol name='rb_prev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf82ec573'/>
       <elf-symbol name='rb_replace_node' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fe32873'/>
-      <elf-symbol name='rdev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c1c2b4a'/>
-      <elf-symbol name='rdev_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dc2c1e1'/>
+      <elf-symbol name='rdev_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80c27542'/>
+      <elf-symbol name='rdev_get_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f1b086b'/>
       <elf-symbol name='refcount_dec_and_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55eb4a7f'/>
       <elf-symbol name='refcount_dec_not_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe441e95a'/>
       <elf-symbol name='refcount_warn_saturate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x296695f'/>
       <elf-symbol name='reg_initiator_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdba126c1'/>
-      <elf-symbol name='regcache_cache_bypass' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4bbb493'/>
-      <elf-symbol name='regcache_cache_only' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x367f1a38'/>
-      <elf-symbol name='regcache_drop_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x799750ce'/>
-      <elf-symbol name='regcache_mark_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8583d27'/>
-      <elf-symbol name='regcache_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe131dfb5'/>
+      <elf-symbol name='regcache_cache_bypass' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e372936'/>
+      <elf-symbol name='regcache_cache_only' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7b0cf0c'/>
+      <elf-symbol name='regcache_drop_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34375ea9'/>
+      <elf-symbol name='regcache_mark_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58e854e1'/>
+      <elf-symbol name='regcache_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x257ca6dd'/>
       <elf-symbol name='register_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71a50dbc'/>
-      <elf-symbol name='register_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9090ba'/>
+      <elf-symbol name='register_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdcfeb1e'/>
       <elf-symbol name='register_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd78f3b'/>
-      <elf-symbol name='register_console' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35087890'/>
+      <elf-symbol name='register_console' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x721ff6f2'/>
       <elf-symbol name='register_die_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6261484'/>
-      <elf-symbol name='register_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb31ee7e3'/>
+      <elf-symbol name='register_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98370ff3'/>
       <elf-symbol name='register_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60352082'/>
       <elf-symbol name='register_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf68285c0'/>
       <elf-symbol name='register_kernel_break_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf42b9584'/>
-      <elf-symbol name='register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12e336f6'/>
-      <elf-symbol name='register_netdevice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x674f47e4'/>
+      <elf-symbol name='register_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b83e301'/>
+      <elf-symbol name='register_netdevice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7e5ce55'/>
       <elf-symbol name='register_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2da1048'/>
       <elf-symbol name='register_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4761f17c'/>
       <elf-symbol name='register_oom_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x622c7922'/>
-      <elf-symbol name='register_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfca0ca68'/>
-      <elf-symbol name='register_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bf2c553'/>
+      <elf-symbol name='register_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8876a51'/>
+      <elf-symbol name='register_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae81411'/>
       <elf-symbol name='register_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cc4f70a'/>
       <elf-symbol name='register_reboot_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3517383e'/>
       <elf-symbol name='register_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9d8fd16'/>
-      <elf-symbol name='register_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xafa2e419'/>
+      <elf-symbol name='register_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80145cad'/>
       <elf-symbol name='register_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9c425de'/>
       <elf-symbol name='register_sysctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9cd91791'/>
       <elf-symbol name='register_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a449c4f'/>
-      <elf-symbol name='register_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3477d03c'/>
-      <elf-symbol name='register_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9964a633'/>
+      <elf-symbol name='register_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14446684'/>
+      <elf-symbol name='register_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c2871de'/>
       <elf-symbol name='register_vmap_purge_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26ed2186'/>
-      <elf-symbol name='regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51bf0b28'/>
-      <elf-symbol name='regmap_async_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27dd59c0'/>
-      <elf-symbol name='regmap_bulk_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62fec4a2'/>
-      <elf-symbol name='regmap_bulk_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8d9f033'/>
+      <elf-symbol name='regmap_add_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d24fb92'/>
+      <elf-symbol name='regmap_async_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaeb93497'/>
+      <elf-symbol name='regmap_bulk_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd696d526'/>
+      <elf-symbol name='regmap_bulk_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2517759b'/>
       <elf-symbol name='regmap_del_irq_chip' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x131a5ed7'/>
-      <elf-symbol name='regmap_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67d96a1f'/>
-      <elf-symbol name='regmap_field_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2fd3675'/>
-      <elf-symbol name='regmap_field_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29712087'/>
-      <elf-symbol name='regmap_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7e3967a'/>
-      <elf-symbol name='regmap_irq_get_domain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb78649e9'/>
+      <elf-symbol name='regmap_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d53b697'/>
+      <elf-symbol name='regmap_field_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5757ed'/>
+      <elf-symbol name='regmap_field_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe01a74f0'/>
+      <elf-symbol name='regmap_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46b15fe9'/>
+      <elf-symbol name='regmap_irq_get_domain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73dbd283'/>
       <elf-symbol name='regmap_irq_get_virq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55784228'/>
-      <elf-symbol name='regmap_multi_reg_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x827a48'/>
-      <elf-symbol name='regmap_multi_reg_write_bypassed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15c212e5'/>
-      <elf-symbol name='regmap_raw_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fd4491a'/>
-      <elf-symbol name='regmap_raw_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x706f4e15'/>
-      <elf-symbol name='regmap_raw_write_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x549c7dea'/>
-      <elf-symbol name='regmap_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x612d1b68'/>
-      <elf-symbol name='regmap_register_patch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf432809'/>
-      <elf-symbol name='regmap_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16250fb6'/>
-      <elf-symbol name='regmap_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14735a1'/>
-      <elf-symbol name='regulator_bulk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee11a6ea'/>
-      <elf-symbol name='regulator_bulk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfef7e3b'/>
-      <elf-symbol name='regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x983a0339'/>
-      <elf-symbol name='regulator_count_voltages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc9e88fe'/>
-      <elf-symbol name='regulator_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92b70dc2'/>
-      <elf-symbol name='regulator_disable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d57ba9e'/>
-      <elf-symbol name='regulator_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c87bc0'/>
-      <elf-symbol name='regulator_enable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x388b5139'/>
-      <elf-symbol name='regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4544168d'/>
-      <elf-symbol name='regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebc144e'/>
-      <elf-symbol name='regulator_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x687b0006'/>
-      <elf-symbol name='regulator_get_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc26a6a7d'/>
-      <elf-symbol name='regulator_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e4d2dd2'/>
-      <elf-symbol name='regulator_is_enabled_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x698ee7bb'/>
-      <elf-symbol name='regulator_is_supported_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef22825'/>
-      <elf-symbol name='regulator_list_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2ef84da'/>
-      <elf-symbol name='regulator_list_voltage_linear_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacc6496b'/>
-      <elf-symbol name='regulator_list_voltage_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65f0ce73'/>
-      <elf-symbol name='regulator_map_voltage_ascend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4925b63'/>
-      <elf-symbol name='regulator_map_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x289dcdbb'/>
-      <elf-symbol name='regulator_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc670790'/>
-      <elf-symbol name='regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4ac234a'/>
-      <elf-symbol name='regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51d42ff'/>
-      <elf-symbol name='regulator_set_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x762bc20e'/>
-      <elf-symbol name='regulator_set_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a20112c'/>
-      <elf-symbol name='regulator_set_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f883c2a'/>
-      <elf-symbol name='regulator_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2146908'/>
-      <elf-symbol name='regulatory_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x854c95e'/>
-      <elf-symbol name='regulatory_set_wiphy_regd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec9cde3'/>
-      <elf-symbol name='regulatory_set_wiphy_regd_sync_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1eb21c36'/>
+      <elf-symbol name='regmap_multi_reg_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb88d24b6'/>
+      <elf-symbol name='regmap_multi_reg_write_bypassed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb8b15d6'/>
+      <elf-symbol name='regmap_raw_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaa30c3f'/>
+      <elf-symbol name='regmap_raw_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa519e2c'/>
+      <elf-symbol name='regmap_raw_write_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x137c625c'/>
+      <elf-symbol name='regmap_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51e55f54'/>
+      <elf-symbol name='regmap_register_patch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44ef6384'/>
+      <elf-symbol name='regmap_update_bits_base' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b0b3adb'/>
+      <elf-symbol name='regmap_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6afb15b8'/>
+      <elf-symbol name='regulator_bulk_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ebf0757'/>
+      <elf-symbol name='regulator_bulk_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcb49db8'/>
+      <elf-symbol name='regulator_bulk_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccc3922'/>
+      <elf-symbol name='regulator_count_voltages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f4ca8b2'/>
+      <elf-symbol name='regulator_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b5ca1e1'/>
+      <elf-symbol name='regulator_disable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a00370'/>
+      <elf-symbol name='regulator_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe741ecc4'/>
+      <elf-symbol name='regulator_enable_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfaa428d'/>
+      <elf-symbol name='regulator_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadca640'/>
+      <elf-symbol name='regulator_get_optional' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3eba614'/>
+      <elf-symbol name='regulator_get_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9334084'/>
+      <elf-symbol name='regulator_get_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ab7c7ef'/>
+      <elf-symbol name='regulator_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd38577c'/>
+      <elf-symbol name='regulator_is_enabled_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46ad89e7'/>
+      <elf-symbol name='regulator_is_supported_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa25aa5a5'/>
+      <elf-symbol name='regulator_list_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5846ee1b'/>
+      <elf-symbol name='regulator_list_voltage_linear_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb951aa77'/>
+      <elf-symbol name='regulator_list_voltage_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ca64fe1'/>
+      <elf-symbol name='regulator_map_voltage_ascend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8577d81b'/>
+      <elf-symbol name='regulator_map_voltage_linear' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef0be6b5'/>
+      <elf-symbol name='regulator_notifier_call_chain' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1051bbbe'/>
+      <elf-symbol name='regulator_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b2d8eb6'/>
+      <elf-symbol name='regulator_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa779d7fd'/>
+      <elf-symbol name='regulator_set_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfd18700'/>
+      <elf-symbol name='regulator_set_voltage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd281e676'/>
+      <elf-symbol name='regulator_set_voltage_sel_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f386041'/>
+      <elf-symbol name='regulator_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9bbec8c'/>
+      <elf-symbol name='regulatory_hint' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc857bb60'/>
+      <elf-symbol name='regulatory_set_wiphy_regd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76fddee6'/>
+      <elf-symbol name='regulatory_set_wiphy_regd_sync_rtnl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc163203'/>
       <elf-symbol name='release_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6d09aa9'/>
-      <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20c82de7'/>
-      <elf-symbol name='remap_pfn_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef15865'/>
-      <elf-symbol name='remap_vmalloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8668b1ed'/>
+      <elf-symbol name='release_sock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d5423c'/>
+      <elf-symbol name='remap_pfn_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e1f6d93'/>
+      <elf-symbol name='remap_vmalloc_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xadc7806f'/>
       <elf-symbol name='remove_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad4e6259'/>
-      <elf-symbol name='remove_proc_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2671b596'/>
+      <elf-symbol name='remove_proc_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3b4bfa36'/>
       <elf-symbol name='remove_wait_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37110088'/>
-      <elf-symbol name='request_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc58acd7d'/>
-      <elf-symbol name='request_firmware_direct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f6a3253'/>
-      <elf-symbol name='request_firmware_into_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe80bfdcb'/>
-      <elf-symbol name='request_firmware_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb471dba6'/>
+      <elf-symbol name='request_firmware' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8195455'/>
+      <elf-symbol name='request_firmware_direct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ea0a5be'/>
+      <elf-symbol name='request_firmware_into_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec8823bf'/>
+      <elf-symbol name='request_firmware_nowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9475825'/>
       <elf-symbol name='request_threaded_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2072ee9b'/>
       <elf-symbol name='reset_control_assert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c4b6684'/>
       <elf-symbol name='reset_control_deassert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2210d64'/>
       <elf-symbol name='reset_control_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24f39c39'/>
       <elf-symbol name='resume_cpus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b491092'/>
       <elf-symbol name='return_address' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb917b6d7'/>
-      <elf-symbol name='revalidate_disk_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f0430ae'/>
-      <elf-symbol name='rfkill_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf1240d8c'/>
+      <elf-symbol name='revalidate_disk_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2249fb42'/>
+      <elf-symbol name='rfkill_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefc446d5'/>
       <elf-symbol name='rfkill_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb68bbad'/>
       <elf-symbol name='rfkill_find_type' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b73ce2'/>
       <elf-symbol name='rfkill_init_sw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaad6d92f'/>
@@ -2726,394 +2726,394 @@
       <elf-symbol name='rhashtable_insert_slow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe086059f'/>
       <elf-symbol name='rht_bucket_nested' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f990e9'/>
       <elf-symbol name='rht_bucket_nested_insert' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9920ae2a'/>
-      <elf-symbol name='root_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c94a893'/>
+      <elf-symbol name='root_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19b78002'/>
       <elf-symbol name='round_jiffies_up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50fad434'/>
-      <elf-symbol name='rpmsg_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x879a24ae'/>
-      <elf-symbol name='rpmsg_send' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b04d9fb'/>
-      <elf-symbol name='rpmsg_trysend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a81e62'/>
-      <elf-symbol name='rpmsg_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ba5d396'/>
-      <elf-symbol name='rproc_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb0039ba'/>
-      <elf-symbol name='rproc_add_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41c33a3c'/>
-      <elf-symbol name='rproc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811934db'/>
-      <elf-symbol name='rproc_coredump_add_custom_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4e2f7d6'/>
-      <elf-symbol name='rproc_coredump_add_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68b1f9fb'/>
-      <elf-symbol name='rproc_coredump_set_elf_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bdb8b0f'/>
-      <elf-symbol name='rproc_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cb6e4cf'/>
-      <elf-symbol name='rproc_elf_get_boot_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a921573'/>
-      <elf-symbol name='rproc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1a5f80d5'/>
-      <elf-symbol name='rproc_get_by_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcef42e80'/>
-      <elf-symbol name='rproc_remove_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x919e0ce8'/>
-      <elf-symbol name='rproc_report_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb88993ff'/>
-      <elf-symbol name='rt_mutex_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a7a4e43'/>
-      <elf-symbol name='rt_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fa9e08a'/>
-      <elf-symbol name='rt_mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdce6bd63'/>
-      <elf-symbol name='rt_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb81ff86'/>
-      <elf-symbol name='rtc_class_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb417ea2b'/>
-      <elf-symbol name='rtc_class_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x166f11a4'/>
-      <elf-symbol name='rtc_read_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ae70239'/>
+      <elf-symbol name='rpmsg_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e406997'/>
+      <elf-symbol name='rpmsg_send' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9c682fe'/>
+      <elf-symbol name='rpmsg_trysend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0d710a3'/>
+      <elf-symbol name='rpmsg_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd9e64e4'/>
+      <elf-symbol name='rproc_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92e03312'/>
+      <elf-symbol name='rproc_add_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x157fb76d'/>
+      <elf-symbol name='rproc_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d51975c'/>
+      <elf-symbol name='rproc_coredump_add_custom_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5fc41d81'/>
+      <elf-symbol name='rproc_coredump_add_segment' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x838c5d8a'/>
+      <elf-symbol name='rproc_coredump_set_elf_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48c12f23'/>
+      <elf-symbol name='rproc_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4998fe5'/>
+      <elf-symbol name='rproc_elf_get_boot_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3ecf3c2'/>
+      <elf-symbol name='rproc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9046013e'/>
+      <elf-symbol name='rproc_get_by_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdea318e6'/>
+      <elf-symbol name='rproc_remove_subdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bbef72d'/>
+      <elf-symbol name='rproc_report_crash' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf93b5e0a'/>
+      <elf-symbol name='rt_mutex_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf030a61a'/>
+      <elf-symbol name='rt_mutex_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51450444'/>
+      <elf-symbol name='rt_mutex_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63f0d628'/>
+      <elf-symbol name='rt_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92393914'/>
+      <elf-symbol name='rtc_class_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aacf6db'/>
+      <elf-symbol name='rtc_class_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x163f6cdb'/>
+      <elf-symbol name='rtc_read_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd2a7c4c'/>
       <elf-symbol name='rtc_time64_to_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x356461c8'/>
       <elf-symbol name='rtc_tm_to_time64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f2250ba'/>
-      <elf-symbol name='rtc_update_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24e516a'/>
+      <elf-symbol name='rtc_update_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d15e7'/>
       <elf-symbol name='rtc_valid_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5838f6c9'/>
       <elf-symbol name='rtc_year_days' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4859b8bb'/>
       <elf-symbol name='rtnl_is_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85670f1d'/>
-      <elf-symbol name='rtnl_link_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x935d9230'/>
-      <elf-symbol name='rtnl_link_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71cef9c6'/>
+      <elf-symbol name='rtnl_link_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd98ccb06'/>
+      <elf-symbol name='rtnl_link_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf0978cb'/>
       <elf-symbol name='rtnl_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7a4fbed'/>
       <elf-symbol name='rtnl_trylock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4f14de6'/>
       <elf-symbol name='rtnl_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e720ff2'/>
-      <elf-symbol name='sb800_prefetch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12854cde'/>
+      <elf-symbol name='sb800_prefetch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10b05bc3'/>
       <elf-symbol name='scatterwalk_ffwd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bbdfa26'/>
       <elf-symbol name='scatterwalk_map_and_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x845dbf3b'/>
       <elf-symbol name='sched_clock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd653b126'/>
-      <elf-symbol name='sched_set_fifo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd9b564b'/>
-      <elf-symbol name='sched_setattr_nocheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6afd9a1'/>
-      <elf-symbol name='sched_setscheduler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x160ec420'/>
-      <elf-symbol name='sched_setscheduler_nocheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e4bc218'/>
-      <elf-symbol name='sched_show_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x697e1b51'/>
-      <elf-symbol name='sched_trace_cfs_rq_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdad92c62'/>
-      <elf-symbol name='sched_trace_cfs_rq_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53b1c832'/>
-      <elf-symbol name='sched_trace_cfs_rq_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4df6969'/>
+      <elf-symbol name='sched_set_fifo' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56dc8465'/>
+      <elf-symbol name='sched_setattr_nocheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe73f525f'/>
+      <elf-symbol name='sched_setscheduler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1aebfec'/>
+      <elf-symbol name='sched_setscheduler_nocheck' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a7b703f'/>
+      <elf-symbol name='sched_show_task' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3ab4867'/>
+      <elf-symbol name='sched_trace_cfs_rq_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9731d10b'/>
+      <elf-symbol name='sched_trace_cfs_rq_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe55be5c1'/>
+      <elf-symbol name='sched_trace_cfs_rq_path' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x721a0289'/>
       <elf-symbol name='sched_trace_rd_span' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63069a86'/>
-      <elf-symbol name='sched_trace_rq_avg_dl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1512c871'/>
-      <elf-symbol name='sched_trace_rq_avg_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb3b8af0'/>
-      <elf-symbol name='sched_trace_rq_avg_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c660f8e'/>
-      <elf-symbol name='sched_trace_rq_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59b84739'/>
+      <elf-symbol name='sched_trace_rq_avg_dl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7e115a9'/>
+      <elf-symbol name='sched_trace_rq_avg_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5b2a145'/>
+      <elf-symbol name='sched_trace_rq_avg_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa711143'/>
+      <elf-symbol name='sched_trace_rq_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1e69a85'/>
       <elf-symbol name='schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1000e51'/>
       <elf-symbol name='schedule_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ddd8aad'/>
       <elf-symbol name='schedule_timeout_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54496b4'/>
       <elf-symbol name='schedule_timeout_uninterruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x151f4898'/>
       <elf-symbol name='scnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96848186'/>
-      <elf-symbol name='scsi_add_host_with_dma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdff5b051'/>
-      <elf-symbol name='scsi_autopm_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76ced0b8'/>
-      <elf-symbol name='scsi_autopm_put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80e08eb7'/>
-      <elf-symbol name='scsi_block_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x344d6e40'/>
-      <elf-symbol name='scsi_block_when_processing_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3129017b'/>
+      <elf-symbol name='scsi_add_host_with_dma' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ae027d3'/>
+      <elf-symbol name='scsi_autopm_get_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc4dad5f'/>
+      <elf-symbol name='scsi_autopm_put_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x955f4dfa'/>
+      <elf-symbol name='scsi_block_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf605dd9d'/>
+      <elf-symbol name='scsi_block_when_processing_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6ff1f1d'/>
       <elf-symbol name='scsi_build_sense_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8112b3d2'/>
-      <elf-symbol name='scsi_change_queue_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb373fbf2'/>
-      <elf-symbol name='scsi_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6906124c'/>
-      <elf-symbol name='scsi_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6153c78b'/>
-      <elf-symbol name='scsi_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe392435'/>
-      <elf-symbol name='scsi_host_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xffd2bd49'/>
-      <elf-symbol name='scsi_host_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x809c4837'/>
-      <elf-symbol name='scsi_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb67b442'/>
-      <elf-symbol name='scsi_ioctl_block_when_processing_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2b78d5a'/>
+      <elf-symbol name='scsi_change_queue_depth' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfff7ce4'/>
+      <elf-symbol name='scsi_compat_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x731e5322'/>
+      <elf-symbol name='scsi_device_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69a548ab'/>
+      <elf-symbol name='scsi_device_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c548f88'/>
+      <elf-symbol name='scsi_host_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ebce6b9'/>
+      <elf-symbol name='scsi_host_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23eb1270'/>
+      <elf-symbol name='scsi_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda022e8b'/>
+      <elf-symbol name='scsi_ioctl_block_when_processing_errors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a96f524'/>
       <elf-symbol name='scsi_normalize_sense' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbad3cf0'/>
-      <elf-symbol name='scsi_register_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ef961a'/>
-      <elf-symbol name='scsi_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bb0db3c'/>
-      <elf-symbol name='scsi_scan_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51ae11bc'/>
+      <elf-symbol name='scsi_register_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc272acea'/>
+      <elf-symbol name='scsi_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2bd757'/>
+      <elf-symbol name='scsi_scan_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d6ba01d'/>
       <elf-symbol name='scsi_set_sense_information' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x818416e1'/>
-      <elf-symbol name='scsi_unblock_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f93021'/>
-      <elf-symbol name='sdev_prefix_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21efb8fa'/>
-      <elf-symbol name='sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29080604'/>
-      <elf-symbol name='sdhci_cleanup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b0223d7'/>
-      <elf-symbol name='sdhci_cqe_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31eab3b7'/>
-      <elf-symbol name='sdhci_cqe_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5581e596'/>
-      <elf-symbol name='sdhci_cqe_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aad6071'/>
-      <elf-symbol name='sdhci_enable_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86f4637c'/>
-      <elf-symbol name='sdhci_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84e8190c'/>
-      <elf-symbol name='sdhci_pltfm_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade956dc'/>
-      <elf-symbol name='sdhci_pltfm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1780fad9'/>
-      <elf-symbol name='sdhci_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4413ba3f'/>
-      <elf-symbol name='sdhci_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6691a241'/>
-      <elf-symbol name='sdhci_set_bus_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b225ac2'/>
-      <elf-symbol name='sdhci_set_power_noreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9abc391e'/>
-      <elf-symbol name='sdhci_setup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e5b40d'/>
-      <elf-symbol name='sdio_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x169a2b7d'/>
-      <elf-symbol name='sdio_disable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb242c14c'/>
-      <elf-symbol name='sdio_enable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac1d714c'/>
-      <elf-symbol name='sdio_f0_readb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x506381a'/>
-      <elf-symbol name='sdio_f0_writeb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93276bef'/>
-      <elf-symbol name='sdio_get_host_pm_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaa23a69'/>
-      <elf-symbol name='sdio_memcpy_fromio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee2f08d4'/>
-      <elf-symbol name='sdio_memcpy_toio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53d7959'/>
-      <elf-symbol name='sdio_readsb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcadcbdd4'/>
-      <elf-symbol name='sdio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f0af19'/>
-      <elf-symbol name='sdio_release_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3219f69'/>
-      <elf-symbol name='sdio_set_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90529800'/>
-      <elf-symbol name='sdio_set_host_pm_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbaf1109d'/>
-      <elf-symbol name='sdio_signal_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab92b8e7'/>
-      <elf-symbol name='sdio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x209c631f'/>
-      <elf-symbol name='sdio_writesb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3d81a78'/>
-      <elf-symbol name='send_sig_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3db1f6cc'/>
-      <elf-symbol name='seq_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefb9b198'/>
-      <elf-symbol name='seq_lseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f2a5d37'/>
-      <elf-symbol name='seq_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce3c365e'/>
-      <elf-symbol name='seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65452d63'/>
-      <elf-symbol name='seq_putc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4a810de'/>
-      <elf-symbol name='seq_puts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff4acde6'/>
-      <elf-symbol name='seq_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac7f70b'/>
-      <elf-symbol name='seq_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb1f96a6'/>
-      <elf-symbol name='seq_release_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf30af181'/>
-      <elf-symbol name='seq_vprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47353f1f'/>
-      <elf-symbol name='seq_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7654114'/>
-      <elf-symbol name='serio_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f268e5a'/>
-      <elf-symbol name='serio_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51164765'/>
-      <elf-symbol name='serio_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x432e9a5e'/>
-      <elf-symbol name='serio_reconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabd991cf'/>
-      <elf-symbol name='serio_rescan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95adb2a3'/>
-      <elf-symbol name='serio_unregister_child_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f02f5a4'/>
-      <elf-symbol name='serio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5656f1f'/>
-      <elf-symbol name='serio_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e10e333'/>
-      <elf-symbol name='set_blocksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf36ebc15'/>
-      <elf-symbol name='set_capacity_revalidate_and_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x80db02d9'/>
-      <elf-symbol name='set_cpus_allowed_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd249f425'/>
-      <elf-symbol name='set_disk_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97b5963c'/>
+      <elf-symbol name='scsi_unblock_requests' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa134ff80'/>
+      <elf-symbol name='sdev_prefix_printk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6121c61'/>
+      <elf-symbol name='sdhci_add_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x739314be'/>
+      <elf-symbol name='sdhci_cleanup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x689cd41'/>
+      <elf-symbol name='sdhci_cqe_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbce13182'/>
+      <elf-symbol name='sdhci_cqe_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc41987f2'/>
+      <elf-symbol name='sdhci_cqe_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29ceb363'/>
+      <elf-symbol name='sdhci_enable_clk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6788a7ed'/>
+      <elf-symbol name='sdhci_get_property' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcadde777'/>
+      <elf-symbol name='sdhci_pltfm_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x122c2875'/>
+      <elf-symbol name='sdhci_pltfm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e7dbed9'/>
+      <elf-symbol name='sdhci_remove_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6da2a59'/>
+      <elf-symbol name='sdhci_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e8c0b61'/>
+      <elf-symbol name='sdhci_set_bus_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8bb2510'/>
+      <elf-symbol name='sdhci_set_power_noreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b8d61a9'/>
+      <elf-symbol name='sdhci_setup_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff9d4f51'/>
+      <elf-symbol name='sdio_claim_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd97ad8f4'/>
+      <elf-symbol name='sdio_disable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f4a3cd4'/>
+      <elf-symbol name='sdio_enable_func' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeb0e937'/>
+      <elf-symbol name='sdio_f0_readb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeea56f3'/>
+      <elf-symbol name='sdio_f0_writeb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cbd9dcc'/>
+      <elf-symbol name='sdio_get_host_pm_caps' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dd87dfd'/>
+      <elf-symbol name='sdio_memcpy_fromio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a049fe3'/>
+      <elf-symbol name='sdio_memcpy_toio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98e4432f'/>
+      <elf-symbol name='sdio_readsb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3382d8e4'/>
+      <elf-symbol name='sdio_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd8fb47a'/>
+      <elf-symbol name='sdio_release_host' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa84db11b'/>
+      <elf-symbol name='sdio_set_block_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3d5a360'/>
+      <elf-symbol name='sdio_set_host_pm_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62ad2ac8'/>
+      <elf-symbol name='sdio_signal_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66104215'/>
+      <elf-symbol name='sdio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12fa979d'/>
+      <elf-symbol name='sdio_writesb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48d44df5'/>
+      <elf-symbol name='send_sig_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0f65363'/>
+      <elf-symbol name='seq_hex_dump' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49757861'/>
+      <elf-symbol name='seq_lseek' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b63d45e'/>
+      <elf-symbol name='seq_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb33c8e3a'/>
+      <elf-symbol name='seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed7d10b8'/>
+      <elf-symbol name='seq_putc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5afc7f8'/>
+      <elf-symbol name='seq_puts' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef71b98d'/>
+      <elf-symbol name='seq_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18607975'/>
+      <elf-symbol name='seq_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91a4459'/>
+      <elf-symbol name='seq_release_private' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b8ef7f0'/>
+      <elf-symbol name='seq_vprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64d1b0f6'/>
+      <elf-symbol name='seq_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7727cad2'/>
+      <elf-symbol name='serio_close' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27f4749f'/>
+      <elf-symbol name='serio_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16557519'/>
+      <elf-symbol name='serio_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb57c3ab4'/>
+      <elf-symbol name='serio_reconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc72094c3'/>
+      <elf-symbol name='serio_rescan' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e94e2be'/>
+      <elf-symbol name='serio_unregister_child_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6391449e'/>
+      <elf-symbol name='serio_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe84f2f73'/>
+      <elf-symbol name='serio_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x501fdc15'/>
+      <elf-symbol name='set_blocksize' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a10b4e3'/>
+      <elf-symbol name='set_capacity_revalidate_and_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd52ef3a6'/>
+      <elf-symbol name='set_cpus_allowed_ptr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd179a66'/>
+      <elf-symbol name='set_disk_ro' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24462b13'/>
       <elf-symbol name='set_freezable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e61bb05'/>
       <elf-symbol name='set_normalized_timespec64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x365acda7'/>
-      <elf-symbol name='set_page_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec62b37'/>
-      <elf-symbol name='set_page_dirty_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4cf0bf9'/>
-      <elf-symbol name='set_user_nice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eac6550'/>
+      <elf-symbol name='set_page_dirty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75f86ff6'/>
+      <elf-symbol name='set_page_dirty_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ffc0c72'/>
+      <elf-symbol name='set_user_nice' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dfdc57'/>
       <elf-symbol name='sg_alloc_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a2f6702'/>
-      <elf-symbol name='sg_alloc_table_from_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc8a6e50'/>
+      <elf-symbol name='sg_alloc_table_from_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c0f6f53'/>
       <elf-symbol name='sg_copy_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ac743de'/>
       <elf-symbol name='sg_copy_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x905695ab'/>
       <elf-symbol name='sg_copy_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b8ab42'/>
       <elf-symbol name='sg_free_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f5b4fe4'/>
       <elf-symbol name='sg_init_one' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb320cc0e'/>
       <elf-symbol name='sg_init_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf888ca21'/>
-      <elf-symbol name='sg_miter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc43a0ddf'/>
-      <elf-symbol name='sg_miter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42176b19'/>
-      <elf-symbol name='sg_miter_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45ae84c7'/>
+      <elf-symbol name='sg_miter_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d09ccf3'/>
+      <elf-symbol name='sg_miter_start' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4913d16e'/>
+      <elf-symbol name='sg_miter_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x452cd86d'/>
       <elf-symbol name='sg_next' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87b8798d'/>
       <elf-symbol name='sg_pcopy_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0fe8d51'/>
-      <elf-symbol name='sg_scsi_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69116b94'/>
-      <elf-symbol name='shash_free_singlespawn_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6871320a'/>
-      <elf-symbol name='shash_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x504e31ec'/>
-      <elf-symbol name='shmem_file_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65e23d80'/>
-      <elf-symbol name='shmem_truncate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x796d5f8f'/>
-      <elf-symbol name='simple_attr_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e5aa3d0'/>
-      <elf-symbol name='simple_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd753dab3'/>
-      <elf-symbol name='simple_attr_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b768a68'/>
-      <elf-symbol name='simple_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb68c0e7d'/>
-      <elf-symbol name='simple_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1ab47f5'/>
+      <elf-symbol name='sg_scsi_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf75f05f5'/>
+      <elf-symbol name='shash_free_singlespawn_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf89de46c'/>
+      <elf-symbol name='shash_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd713ef4'/>
+      <elf-symbol name='shmem_file_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9075186c'/>
+      <elf-symbol name='shmem_truncate_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64b2049b'/>
+      <elf-symbol name='simple_attr_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x58daa8ab'/>
+      <elf-symbol name='simple_attr_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f56bb79'/>
+      <elf-symbol name='simple_attr_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7f777ca'/>
+      <elf-symbol name='simple_attr_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x965d4359'/>
+      <elf-symbol name='simple_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16bc4be3'/>
       <elf-symbol name='simple_read_from_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x619cb7dd'/>
-      <elf-symbol name='simple_statfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb16e9d1f'/>
+      <elf-symbol name='simple_statfs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1f9f4cc'/>
       <elf-symbol name='simple_strtol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb742fd7'/>
       <elf-symbol name='simple_strtoll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7e56a4e'/>
       <elf-symbol name='simple_strtoul' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20000329'/>
       <elf-symbol name='simple_strtoull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61b7b126'/>
       <elf-symbol name='simple_write_to_buffer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb4f4766'/>
-      <elf-symbol name='single_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7eae4d4a'/>
-      <elf-symbol name='single_open_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9bfad79'/>
-      <elf-symbol name='single_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4289b376'/>
-      <elf-symbol name='sk_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a0e9eee'/>
-      <elf-symbol name='sk_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdeef51b7'/>
-      <elf-symbol name='skb_add_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c24e5f3'/>
-      <elf-symbol name='skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23df7243'/>
-      <elf-symbol name='skb_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7425598'/>
-      <elf-symbol name='skb_coalesce_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75e835cd'/>
-      <elf-symbol name='skb_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa95131ef'/>
-      <elf-symbol name='skb_copy_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd587778c'/>
-      <elf-symbol name='skb_copy_datagram_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5b85675'/>
-      <elf-symbol name='skb_copy_expand' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdab79529'/>
-      <elf-symbol name='skb_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40422cd1'/>
-      <elf-symbol name='skb_dequeue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb0535cd'/>
-      <elf-symbol name='skb_free_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4df2809'/>
-      <elf-symbol name='skb_page_frag_refill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ae31950'/>
-      <elf-symbol name='skb_partial_csum_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd396ce'/>
-      <elf-symbol name='skb_pull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27386fea'/>
-      <elf-symbol name='skb_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1cbe9f5e'/>
-      <elf-symbol name='skb_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f730d6a'/>
-      <elf-symbol name='skb_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x187e18f1'/>
-      <elf-symbol name='skb_queue_purge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0599129'/>
-      <elf-symbol name='skb_queue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb37dcf2e'/>
-      <elf-symbol name='skb_realloc_headroom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa7cbc3fb'/>
-      <elf-symbol name='skb_recv_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15c41664'/>
-      <elf-symbol name='skb_set_owner_w' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09a703d'/>
-      <elf-symbol name='skb_store_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76b1baae'/>
-      <elf-symbol name='skb_to_sgvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf511b23f'/>
-      <elf-symbol name='skb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68926053'/>
-      <elf-symbol name='skb_tstamp_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x145a44f6'/>
-      <elf-symbol name='skb_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc8d1ab8'/>
-      <elf-symbol name='skcipher_alloc_instance_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf09f11a3'/>
-      <elf-symbol name='skcipher_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcab9770c'/>
-      <elf-symbol name='skcipher_walk_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10198e03'/>
-      <elf-symbol name='skcipher_walk_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1bde2f0'/>
-      <elf-symbol name='skcipher_walk_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a286d62'/>
-      <elf-symbol name='skcipher_walk_virt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde84dc35'/>
+      <elf-symbol name='single_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef13231f'/>
+      <elf-symbol name='single_open_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33ffdd0'/>
+      <elf-symbol name='single_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15b33622'/>
+      <elf-symbol name='sk_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57ab77db'/>
+      <elf-symbol name='sk_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fdd9f2d'/>
+      <elf-symbol name='skb_add_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa54cc37'/>
+      <elf-symbol name='skb_checksum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20839735'/>
+      <elf-symbol name='skb_clone' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8772fdd'/>
+      <elf-symbol name='skb_coalesce_rx_frag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2bd2b39'/>
+      <elf-symbol name='skb_copy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c3d3322'/>
+      <elf-symbol name='skb_copy_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3995075'/>
+      <elf-symbol name='skb_copy_datagram_iter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0c86acb'/>
+      <elf-symbol name='skb_copy_expand' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37519d34'/>
+      <elf-symbol name='skb_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5597fe2'/>
+      <elf-symbol name='skb_dequeue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7461cef'/>
+      <elf-symbol name='skb_free_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc77bac1b'/>
+      <elf-symbol name='skb_page_frag_refill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc280f6a2'/>
+      <elf-symbol name='skb_partial_csum_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ad29fa7'/>
+      <elf-symbol name='skb_pull' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfd426bd'/>
+      <elf-symbol name='skb_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed6c86be'/>
+      <elf-symbol name='skb_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf2885e0'/>
+      <elf-symbol name='skb_queue_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9670821f'/>
+      <elf-symbol name='skb_queue_purge' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf24d7b38'/>
+      <elf-symbol name='skb_queue_tail' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe36a6fba'/>
+      <elf-symbol name='skb_realloc_headroom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2cdc954'/>
+      <elf-symbol name='skb_recv_datagram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8fca1e31'/>
+      <elf-symbol name='skb_set_owner_w' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb85adde9'/>
+      <elf-symbol name='skb_store_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ec8446c'/>
+      <elf-symbol name='skb_to_sgvec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x839da12e'/>
+      <elf-symbol name='skb_trim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd5f2d3a'/>
+      <elf-symbol name='skb_tstamp_tx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8e841e7'/>
+      <elf-symbol name='skb_unlink' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x490b57fa'/>
+      <elf-symbol name='skcipher_alloc_instance_simple' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x78970516'/>
+      <elf-symbol name='skcipher_register_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69d8ae5e'/>
+      <elf-symbol name='skcipher_walk_aead_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2b14999c'/>
+      <elf-symbol name='skcipher_walk_aead_encrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x405befa1'/>
+      <elf-symbol name='skcipher_walk_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd8edbe1'/>
+      <elf-symbol name='skcipher_walk_virt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38b953f7'/>
       <elf-symbol name='skip_spaces' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0a91bab'/>
       <elf-symbol name='smp_call_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0eae826'/>
       <elf-symbol name='smp_call_function_single' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6228c21f'/>
       <elf-symbol name='smp_call_on_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x267df662'/>
-      <elf-symbol name='snd_card_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdfd6625'/>
-      <elf-symbol name='snd_card_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef6eddfc'/>
-      <elf-symbol name='snd_card_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a37a0d0'/>
-      <elf-symbol name='snd_card_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5cbf4f2'/>
-      <elf-symbol name='snd_card_rw_proc_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd51fdacc'/>
-      <elf-symbol name='snd_component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31099de2'/>
-      <elf-symbol name='snd_compr_stop_error' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3f729d7'/>
-      <elf-symbol name='snd_ctl_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dd00758'/>
-      <elf-symbol name='snd_ctl_add_vmaster_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8369dd7'/>
-      <elf-symbol name='snd_ctl_apply_vmaster_followers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x945d47bd'/>
-      <elf-symbol name='snd_ctl_boolean_mono_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b3c0c99'/>
-      <elf-symbol name='snd_ctl_boolean_stereo_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2125812'/>
+      <elf-symbol name='snd_card_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabdbf3c1'/>
+      <elf-symbol name='snd_card_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c310601'/>
+      <elf-symbol name='snd_card_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97a4c6c3'/>
+      <elf-symbol name='snd_card_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee36c15f'/>
+      <elf-symbol name='snd_card_rw_proc_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc8a2daf'/>
+      <elf-symbol name='snd_component_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9806d9b4'/>
+      <elf-symbol name='snd_compr_stop_error' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e39b1b2'/>
+      <elf-symbol name='snd_ctl_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0fe7bf0'/>
+      <elf-symbol name='snd_ctl_add_vmaster_hook' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97105de1'/>
+      <elf-symbol name='snd_ctl_apply_vmaster_followers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77bc3cdf'/>
+      <elf-symbol name='snd_ctl_boolean_mono_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe48bbab3'/>
+      <elf-symbol name='snd_ctl_boolean_stereo_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7359e38'/>
       <elf-symbol name='snd_ctl_enum_info' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc6a729f'/>
-      <elf-symbol name='snd_ctl_find_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8519b49f'/>
-      <elf-symbol name='snd_ctl_make_virtual_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc183bcf5'/>
-      <elf-symbol name='snd_ctl_new1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3e6085'/>
-      <elf-symbol name='snd_ctl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30f07ba0'/>
-      <elf-symbol name='snd_ctl_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4b9e84'/>
-      <elf-symbol name='snd_ctl_sync_vmaster' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbec79d12'/>
-      <elf-symbol name='snd_device_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x435912a0'/>
-      <elf-symbol name='snd_device_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa504e02d'/>
-      <elf-symbol name='snd_device_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c8efcb9'/>
-      <elf-symbol name='snd_dma_alloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x101af08e'/>
-      <elf-symbol name='snd_dma_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc56f3bd7'/>
-      <elf-symbol name='snd_dmaengine_pcm_prepare_slave_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5c8e755'/>
-      <elf-symbol name='snd_info_create_card_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf60c750'/>
-      <elf-symbol name='snd_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ad37b12'/>
-      <elf-symbol name='snd_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ff8a7ce'/>
-      <elf-symbol name='snd_jack_set_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfbccca3'/>
-      <elf-symbol name='snd_pci_quirk_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6bd440c'/>
-      <elf-symbol name='snd_pcm_add_chmap_ctls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x194eb890'/>
+      <elf-symbol name='snd_ctl_find_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bff6856'/>
+      <elf-symbol name='snd_ctl_make_virtual_master' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb85fb0b2'/>
+      <elf-symbol name='snd_ctl_new1' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8db69c9f'/>
+      <elf-symbol name='snd_ctl_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30b06760'/>
+      <elf-symbol name='snd_ctl_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34ba8d07'/>
+      <elf-symbol name='snd_ctl_sync_vmaster' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b8c7a1'/>
+      <elf-symbol name='snd_device_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cb7f6f8'/>
+      <elf-symbol name='snd_device_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3bbaf64'/>
+      <elf-symbol name='snd_device_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51a408'/>
+      <elf-symbol name='snd_dma_alloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4a65267'/>
+      <elf-symbol name='snd_dma_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x193c19db'/>
+      <elf-symbol name='snd_dmaengine_pcm_prepare_slave_config' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda125f15'/>
+      <elf-symbol name='snd_info_create_card_entry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71696aee'/>
+      <elf-symbol name='snd_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a4e9f87'/>
+      <elf-symbol name='snd_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9845ba2'/>
+      <elf-symbol name='snd_jack_set_key' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9e29e641'/>
+      <elf-symbol name='snd_pci_quirk_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3e17434'/>
+      <elf-symbol name='snd_pcm_add_chmap_ctls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f6d65a0'/>
       <elf-symbol name='snd_pcm_create_iec958_consumer_hw_params' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11eba48e'/>
       <elf-symbol name='snd_pcm_format_physical_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x68a24153'/>
       <elf-symbol name='snd_pcm_format_width' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe56a9336'/>
-      <elf-symbol name='snd_pcm_hw_constraint_eld' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacdcf376'/>
-      <elf-symbol name='snd_pcm_hw_constraint_integer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc90a73c1'/>
-      <elf-symbol name='snd_pcm_hw_constraint_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7f86544'/>
-      <elf-symbol name='snd_pcm_hw_constraint_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe94a10eb'/>
-      <elf-symbol name='snd_pcm_hw_constraint_step' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6e311c'/>
+      <elf-symbol name='snd_pcm_hw_constraint_eld' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb558f49'/>
+      <elf-symbol name='snd_pcm_hw_constraint_integer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7109dd9'/>
+      <elf-symbol name='snd_pcm_hw_constraint_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13e0f138'/>
+      <elf-symbol name='snd_pcm_hw_constraint_minmax' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x607e5e84'/>
+      <elf-symbol name='snd_pcm_hw_constraint_step' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b55e2ec'/>
       <elf-symbol name='snd_pcm_hw_limit_rates' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69255f54'/>
-      <elf-symbol name='snd_pcm_lib_default_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd24e23a0'/>
-      <elf-symbol name='snd_pcm_lib_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1eeec4f5'/>
-      <elf-symbol name='snd_pcm_lib_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xed2fb049'/>
-      <elf-symbol name='snd_pcm_lib_malloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e41abd7'/>
-      <elf-symbol name='snd_pcm_lib_preallocate_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a35cebb'/>
-      <elf-symbol name='snd_pcm_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb583072'/>
-      <elf-symbol name='snd_pcm_period_elapsed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66ff9fa1'/>
-      <elf-symbol name='snd_pcm_set_managed_buffer_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36a6600c'/>
-      <elf-symbol name='snd_pcm_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7984e578'/>
-      <elf-symbol name='snd_pcm_set_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x752db5dc'/>
-      <elf-symbol name='snd_soc_add_component_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7fadfcc'/>
-      <elf-symbol name='snd_soc_add_dai_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd069fffa'/>
-      <elf-symbol name='snd_soc_bytes_tlv_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x315fc680'/>
-      <elf-symbol name='snd_soc_card_get_kcontrol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc34fc150'/>
-      <elf-symbol name='snd_soc_card_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff4e4c72'/>
-      <elf-symbol name='snd_soc_component_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd9112dc'/>
-      <elf-symbol name='snd_soc_component_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x837595d'/>
-      <elf-symbol name='snd_soc_component_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x523ac458'/>
-      <elf-symbol name='snd_soc_component_get_pin_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7572bc7'/>
-      <elf-symbol name='snd_soc_component_init_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd702ca52'/>
-      <elf-symbol name='snd_soc_component_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3de9e84a'/>
-      <elf-symbol name='snd_soc_component_set_jack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597de7e4'/>
-      <elf-symbol name='snd_soc_component_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f51b77b'/>
-      <elf-symbol name='snd_soc_component_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x510ebcc2'/>
-      <elf-symbol name='snd_soc_component_update_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d173235'/>
-      <elf-symbol name='snd_soc_component_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6369bae'/>
-      <elf-symbol name='snd_soc_dai_get_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2af87ab9'/>
-      <elf-symbol name='snd_soc_dai_link_set_capabilities' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf25e56df'/>
-      <elf-symbol name='snd_soc_dai_set_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e3b7277'/>
-      <elf-symbol name='snd_soc_dai_set_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67b04ebf'/>
-      <elf-symbol name='snd_soc_dai_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70929698'/>
-      <elf-symbol name='snd_soc_dai_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d6925b2'/>
-      <elf-symbol name='snd_soc_dai_set_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3915cf8'/>
-      <elf-symbol name='snd_soc_dapm_add_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9711b2e'/>
-      <elf-symbol name='snd_soc_dapm_del_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d7e23dc'/>
-      <elf-symbol name='snd_soc_dapm_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ae2f2aa'/>
-      <elf-symbol name='snd_soc_dapm_disable_pin_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x166400ff'/>
-      <elf-symbol name='snd_soc_dapm_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc26a35e5'/>
-      <elf-symbol name='snd_soc_dapm_force_enable_pin_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c08ac08'/>
-      <elf-symbol name='snd_soc_dapm_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41fd627f'/>
-      <elf-symbol name='snd_soc_dapm_get_pin_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5ccb386'/>
-      <elf-symbol name='snd_soc_dapm_get_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bb69a68'/>
-      <elf-symbol name='snd_soc_dapm_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e2b5099'/>
-      <elf-symbol name='snd_soc_dapm_ignore_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3e82506'/>
-      <elf-symbol name='snd_soc_dapm_info_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9376771'/>
-      <elf-symbol name='snd_soc_dapm_kcontrol_dapm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf928af45'/>
-      <elf-symbol name='snd_soc_dapm_kcontrol_widget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee83fe3'/>
-      <elf-symbol name='snd_soc_dapm_mixer_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfceb3329'/>
-      <elf-symbol name='snd_soc_dapm_mux_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb61bbd7d'/>
-      <elf-symbol name='snd_soc_dapm_new_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aa4dfae'/>
-      <elf-symbol name='snd_soc_dapm_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x651def1e'/>
-      <elf-symbol name='snd_soc_dapm_put_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf985d9b'/>
-      <elf-symbol name='snd_soc_dapm_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9826afda'/>
-      <elf-symbol name='snd_soc_dapm_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e2036bd'/>
-      <elf-symbol name='snd_soc_dapm_sync_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1f26b1f'/>
-      <elf-symbol name='snd_soc_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82df511f'/>
-      <elf-symbol name='snd_soc_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x336828d3'/>
-      <elf-symbol name='snd_soc_get_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4d6bd04'/>
-      <elf-symbol name='snd_soc_get_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x863c1760'/>
-      <elf-symbol name='snd_soc_info_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69e25b80'/>
-      <elf-symbol name='snd_soc_info_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe5e3d2a'/>
-      <elf-symbol name='snd_soc_info_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66358a5a'/>
-      <elf-symbol name='snd_soc_info_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4ea0be'/>
-      <elf-symbol name='snd_soc_jack_add_gpios' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3efa62'/>
-      <elf-symbol name='snd_soc_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe52138e3'/>
-      <elf-symbol name='snd_soc_lookup_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50099584'/>
-      <elf-symbol name='snd_soc_new_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ec7b334'/>
-      <elf-symbol name='snd_soc_of_get_dai_link_codecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa607565d'/>
-      <elf-symbol name='snd_soc_of_get_dai_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13eecb9b'/>
-      <elf-symbol name='snd_soc_of_parse_audio_routing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93107ea2'/>
-      <elf-symbol name='snd_soc_of_parse_audio_simple_widgets' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4db26788'/>
-      <elf-symbol name='snd_soc_of_parse_aux_devs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9216906c'/>
-      <elf-symbol name='snd_soc_of_parse_card_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9e12870'/>
-      <elf-symbol name='snd_soc_of_parse_daifmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3398f480'/>
-      <elf-symbol name='snd_soc_of_parse_node_prefix' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7d4fe7b'/>
-      <elf-symbol name='snd_soc_of_parse_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe56703b'/>
+      <elf-symbol name='snd_pcm_lib_default_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10a6f479'/>
+      <elf-symbol name='snd_pcm_lib_free_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbdd19e4d'/>
+      <elf-symbol name='snd_pcm_lib_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xacb984d7'/>
+      <elf-symbol name='snd_pcm_lib_malloc_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95495b83'/>
+      <elf-symbol name='snd_pcm_lib_preallocate_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69901dc5'/>
+      <elf-symbol name='snd_pcm_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc79fae33'/>
+      <elf-symbol name='snd_pcm_period_elapsed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f4cad80'/>
+      <elf-symbol name='snd_pcm_set_managed_buffer_all' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c8e21aa'/>
+      <elf-symbol name='snd_pcm_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfce24b16'/>
+      <elf-symbol name='snd_pcm_set_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35f8c8ac'/>
+      <elf-symbol name='snd_soc_add_component_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7519990f'/>
+      <elf-symbol name='snd_soc_add_dai_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84731b0'/>
+      <elf-symbol name='snd_soc_bytes_tlv_callback' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc667e28'/>
+      <elf-symbol name='snd_soc_card_get_kcontrol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4932897'/>
+      <elf-symbol name='snd_soc_card_jack_new' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39344a05'/>
+      <elf-symbol name='snd_soc_component_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47eb12c8'/>
+      <elf-symbol name='snd_soc_component_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5396028d'/>
+      <elf-symbol name='snd_soc_component_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56869a15'/>
+      <elf-symbol name='snd_soc_component_get_pin_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50604693'/>
+      <elf-symbol name='snd_soc_component_init_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x932cba66'/>
+      <elf-symbol name='snd_soc_component_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x73e51fd6'/>
+      <elf-symbol name='snd_soc_component_set_jack' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5a94e21'/>
+      <elf-symbol name='snd_soc_component_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb12a5f4'/>
+      <elf-symbol name='snd_soc_component_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c65e977'/>
+      <elf-symbol name='snd_soc_component_update_bits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0ab7cb6'/>
+      <elf-symbol name='snd_soc_component_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x71c63bf3'/>
+      <elf-symbol name='snd_soc_dai_get_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x436ace5e'/>
+      <elf-symbol name='snd_soc_dai_link_set_capabilities' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf40cf96'/>
+      <elf-symbol name='snd_soc_dai_set_channel_map' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe14780a0'/>
+      <elf-symbol name='snd_soc_dai_set_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe938bbe9'/>
+      <elf-symbol name='snd_soc_dai_set_pll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x888593b0'/>
+      <elf-symbol name='snd_soc_dai_set_sysclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51e8a4c5'/>
+      <elf-symbol name='snd_soc_dai_set_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e5517d1'/>
+      <elf-symbol name='snd_soc_dapm_add_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5b5368'/>
+      <elf-symbol name='snd_soc_dapm_del_routes' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x60fc6cd8'/>
+      <elf-symbol name='snd_soc_dapm_disable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7361fb2a'/>
+      <elf-symbol name='snd_soc_dapm_disable_pin_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13965536'/>
+      <elf-symbol name='snd_soc_dapm_force_enable_pin' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66ea3b71'/>
+      <elf-symbol name='snd_soc_dapm_force_enable_pin_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x403de08a'/>
+      <elf-symbol name='snd_soc_dapm_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeaa520b1'/>
+      <elf-symbol name='snd_soc_dapm_get_pin_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96352724'/>
+      <elf-symbol name='snd_soc_dapm_get_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf37bab5'/>
+      <elf-symbol name='snd_soc_dapm_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f611d79'/>
+      <elf-symbol name='snd_soc_dapm_ignore_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4d2e145'/>
+      <elf-symbol name='snd_soc_dapm_info_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fe2f610'/>
+      <elf-symbol name='snd_soc_dapm_kcontrol_dapm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd990a98b'/>
+      <elf-symbol name='snd_soc_dapm_kcontrol_widget' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93bc5239'/>
+      <elf-symbol name='snd_soc_dapm_mixer_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x164561a9'/>
+      <elf-symbol name='snd_soc_dapm_mux_update_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa047742d'/>
+      <elf-symbol name='snd_soc_dapm_new_controls' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb151ca9'/>
+      <elf-symbol name='snd_soc_dapm_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56e144f7'/>
+      <elf-symbol name='snd_soc_dapm_put_pin_switch' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdd0e604'/>
+      <elf-symbol name='snd_soc_dapm_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18a9247f'/>
+      <elf-symbol name='snd_soc_dapm_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e9847ba'/>
+      <elf-symbol name='snd_soc_dapm_sync_unlocked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8330a209'/>
+      <elf-symbol name='snd_soc_get_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x316320d6'/>
+      <elf-symbol name='snd_soc_get_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba0c9091'/>
+      <elf-symbol name='snd_soc_get_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa67ffbee'/>
+      <elf-symbol name='snd_soc_get_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ebe5d82'/>
+      <elf-symbol name='snd_soc_info_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c12b3d6'/>
+      <elf-symbol name='snd_soc_info_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a018054'/>
+      <elf-symbol name='snd_soc_info_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe21003dd'/>
+      <elf-symbol name='snd_soc_info_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7840bca'/>
+      <elf-symbol name='snd_soc_jack_add_gpios' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d3e9f9a'/>
+      <elf-symbol name='snd_soc_jack_report' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cb582b0'/>
+      <elf-symbol name='snd_soc_lookup_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61d395e7'/>
+      <elf-symbol name='snd_soc_new_compress' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9b41730'/>
+      <elf-symbol name='snd_soc_of_get_dai_link_codecs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9885dae'/>
+      <elf-symbol name='snd_soc_of_get_dai_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe94f4097'/>
+      <elf-symbol name='snd_soc_of_parse_audio_routing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e9d950a'/>
+      <elf-symbol name='snd_soc_of_parse_audio_simple_widgets' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe44a273b'/>
+      <elf-symbol name='snd_soc_of_parse_aux_devs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9d852bf'/>
+      <elf-symbol name='snd_soc_of_parse_card_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4d5178d'/>
+      <elf-symbol name='snd_soc_of_parse_daifmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9c8fb9'/>
+      <elf-symbol name='snd_soc_of_parse_node_prefix' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea5998a9'/>
+      <elf-symbol name='snd_soc_of_parse_tdm_slot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12fdb1f8'/>
       <elf-symbol name='snd_soc_params_to_bclk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb711ae7'/>
       <elf-symbol name='snd_soc_params_to_frame_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8269f94'/>
-      <elf-symbol name='snd_soc_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfcfef'/>
-      <elf-symbol name='snd_soc_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2e1149'/>
-      <elf-symbol name='snd_soc_put_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66d623f4'/>
-      <elf-symbol name='snd_soc_put_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7834364'/>
-      <elf-symbol name='snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd536a1f6'/>
-      <elf-symbol name='snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x276d5579'/>
-      <elf-symbol name='snd_soc_runtime_calc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfbe432b3'/>
-      <elf-symbol name='snd_soc_runtime_set_dai_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47ba795a'/>
-      <elf-symbol name='snd_soc_set_runtime_hwparams' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8f0c83c'/>
-      <elf-symbol name='snd_soc_unregister_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96ca3247'/>
-      <elf-symbol name='snd_soc_unregister_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44bfdcd9'/>
-      <elf-symbol name='snd_vendor_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc33f5864'/>
+      <elf-symbol name='snd_soc_put_enum_double' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe92f68d0'/>
+      <elf-symbol name='snd_soc_put_volsw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dd1af32'/>
+      <elf-symbol name='snd_soc_put_volsw_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e33b3e8'/>
+      <elf-symbol name='snd_soc_put_volsw_sx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x453c3a19'/>
+      <elf-symbol name='snd_soc_register_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91912fbf'/>
+      <elf-symbol name='snd_soc_register_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf71b28f3'/>
+      <elf-symbol name='snd_soc_runtime_calc_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14489b6a'/>
+      <elf-symbol name='snd_soc_runtime_set_dai_fmt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39eb4f55'/>
+      <elf-symbol name='snd_soc_set_runtime_hwparams' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb002703'/>
+      <elf-symbol name='snd_soc_unregister_card' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec92f30b'/>
+      <elf-symbol name='snd_soc_unregister_component' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb292fa5c'/>
+      <elf-symbol name='snd_vendor_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e8300ae'/>
       <elf-symbol name='snprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656e4a6e'/>
-      <elf-symbol name='soc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7dd7266a'/>
+      <elf-symbol name='soc_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fc2bf3c'/>
       <elf-symbol name='soc_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19c20269'/>
-      <elf-symbol name='sock_alloc_send_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x273c6d74'/>
-      <elf-symbol name='sock_create_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9065d7b'/>
-      <elf-symbol name='sock_efree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbde68ab0'/>
-      <elf-symbol name='sock_gettstamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd5249f2'/>
-      <elf-symbol name='sock_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa195755e'/>
-      <elf-symbol name='sock_no_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a5388f2'/>
-      <elf-symbol name='sock_no_listen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2599bd6'/>
-      <elf-symbol name='sock_no_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x917f57ee'/>
-      <elf-symbol name='sock_no_sendpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff83e621'/>
-      <elf-symbol name='sock_no_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e7b2581'/>
-      <elf-symbol name='sock_no_socketpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38b74f92'/>
-      <elf-symbol name='sock_queue_rcv_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95765df2'/>
-      <elf-symbol name='sock_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e3b1b8a'/>
-      <elf-symbol name='sock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7ba927e'/>
-      <elf-symbol name='sock_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dc15336'/>
-      <elf-symbol name='sock_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4cb7c853'/>
+      <elf-symbol name='sock_alloc_send_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa321690e'/>
+      <elf-symbol name='sock_create_kern' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a1c1d31'/>
+      <elf-symbol name='sock_efree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8731f5e3'/>
+      <elf-symbol name='sock_gettstamp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ac7dea1'/>
+      <elf-symbol name='sock_init_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a9cd110'/>
+      <elf-symbol name='sock_no_accept' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x59bdba87'/>
+      <elf-symbol name='sock_no_listen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x173da8b9'/>
+      <elf-symbol name='sock_no_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcea8eb2'/>
+      <elf-symbol name='sock_no_sendpage' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x591f58d9'/>
+      <elf-symbol name='sock_no_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x513a210c'/>
+      <elf-symbol name='sock_no_socketpair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x720e0d5a'/>
+      <elf-symbol name='sock_queue_rcv_skb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x356f6cbb'/>
+      <elf-symbol name='sock_recvmsg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7791060c'/>
+      <elf-symbol name='sock_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16db6e34'/>
+      <elf-symbol name='sock_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1617ac1e'/>
+      <elf-symbol name='sock_setsockopt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7a8f870'/>
       <elf-symbol name='sock_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62737e1d'/>
-      <elf-symbol name='sock_wfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa8a9506'/>
-      <elf-symbol name='sockfd_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xad3651e2'/>
+      <elf-symbol name='sock_wfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa4fbdbfc'/>
+      <elf-symbol name='sockfd_lookup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9ebe3f9'/>
       <elf-symbol name='sort' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c0f443'/>
-      <elf-symbol name='spi_bus_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfdaf9199'/>
-      <elf-symbol name='spi_bus_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbdf09f0'/>
-      <elf-symbol name='spi_controller_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d84cf3'/>
-      <elf-symbol name='spi_controller_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa05d9ef5'/>
+      <elf-symbol name='spi_bus_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81e1a40d'/>
+      <elf-symbol name='spi_bus_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5bcea72'/>
+      <elf-symbol name='spi_controller_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb8e768b'/>
+      <elf-symbol name='spi_controller_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24f73093'/>
       <elf-symbol name='spi_delay_exec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76306859'/>
-      <elf-symbol name='spi_finalize_current_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x235607d5'/>
-      <elf-symbol name='spi_finalize_current_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdd26553d'/>
-      <elf-symbol name='spi_get_next_queued_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fc72960'/>
-      <elf-symbol name='spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x93e695ba'/>
-      <elf-symbol name='spi_set_cs_timing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e3f9341'/>
-      <elf-symbol name='spi_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27b5f945'/>
-      <elf-symbol name='spi_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0683dae'/>
-      <elf-symbol name='spi_sync_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeea5a731'/>
-      <elf-symbol name='spi_unregister_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x842669e0'/>
-      <elf-symbol name='split_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x783724d8'/>
-      <elf-symbol name='spmi_controller_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x138e14f4'/>
-      <elf-symbol name='spmi_controller_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x385a43d8'/>
-      <elf-symbol name='spmi_controller_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb172fdd3'/>
-      <elf-symbol name='spmi_ext_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d266657'/>
-      <elf-symbol name='spmi_ext_register_readl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd47ce324'/>
-      <elf-symbol name='spmi_ext_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc06fcbdb'/>
-      <elf-symbol name='spmi_ext_register_writel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f5a53c5'/>
-      <elf-symbol name='spmi_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x656df3c3'/>
-      <elf-symbol name='spmi_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9c41335'/>
-      <elf-symbol name='spmi_register_zero_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd45cbd3'/>
+      <elf-symbol name='spi_finalize_current_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe631f760'/>
+      <elf-symbol name='spi_finalize_current_transfer' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd96ff542'/>
+      <elf-symbol name='spi_get_next_queued_message' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5aef81c3'/>
+      <elf-symbol name='spi_register_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x794c97f6'/>
+      <elf-symbol name='spi_set_cs_timing' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15ded9c5'/>
+      <elf-symbol name='spi_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x925a78ca'/>
+      <elf-symbol name='spi_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8cf55935'/>
+      <elf-symbol name='spi_sync_locked' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3968b2d0'/>
+      <elf-symbol name='spi_unregister_controller' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd39c3259'/>
+      <elf-symbol name='split_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cc39165'/>
+      <elf-symbol name='spmi_controller_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36c05459'/>
+      <elf-symbol name='spmi_controller_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85b06f46'/>
+      <elf-symbol name='spmi_controller_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc8a8aaf8'/>
+      <elf-symbol name='spmi_ext_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5e13ee57'/>
+      <elf-symbol name='spmi_ext_register_readl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x615ac52d'/>
+      <elf-symbol name='spmi_ext_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x423a8c67'/>
+      <elf-symbol name='spmi_ext_register_writel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9ffc43d'/>
+      <elf-symbol name='spmi_register_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x354be25'/>
+      <elf-symbol name='spmi_register_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d605deb'/>
+      <elf-symbol name='spmi_register_zero_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x302e44d1'/>
       <elf-symbol name='sprint_symbol' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x661601de'/>
       <elf-symbol name='sprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c3ff9fd'/>
       <elf-symbol name='srcu_init_notifier_head' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36d70b72'/>
@@ -3133,7 +3133,7 @@
       <elf-symbol name='strcmp' type='func-type' binding='weak-binding' visibility='default-visibility' is-defined='yes' crc='0xe2d5255a'/>
       <elf-symbol name='strcpy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe914e41e'/>
       <elf-symbol name='strcspn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ac5d3cb'/>
-      <elf-symbol name='stream_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b1e1ba6'/>
+      <elf-symbol name='stream_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb0f8674'/>
       <elf-symbol name='strim' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77bc13a0'/>
       <elf-symbol name='string_get_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x48a91171'/>
       <elf-symbol name='strlcat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9c0b663'/>
@@ -3154,46 +3154,46 @@
       <elf-symbol name='strsep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85df9b6c'/>
       <elf-symbol name='strspn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc29bf967'/>
       <elf-symbol name='strstr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1e6d26a8'/>
-      <elf-symbol name='submit_bio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2fe6934'/>
-      <elf-symbol name='submit_bio_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42bca0bc'/>
-      <elf-symbol name='subsys_system_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0153998'/>
+      <elf-symbol name='submit_bio' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd031c60a'/>
+      <elf-symbol name='submit_bio_wait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfc2a5c6'/>
+      <elf-symbol name='subsys_system_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bbbc01f'/>
       <elf-symbol name='suspend_set_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ab0c7e0'/>
-      <elf-symbol name='sync_file_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x810751d5'/>
+      <elf-symbol name='sync_file_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3f1336d'/>
       <elf-symbol name='sync_file_get_fence' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4dca08ee'/>
       <elf-symbol name='synchronize_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe523ad75'/>
       <elf-symbol name='synchronize_net' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x609f1c7e'/>
       <elf-symbol name='synchronize_rcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091797f'/>
       <elf-symbol name='synchronize_srcu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b0243a'/>
-      <elf-symbol name='syscon_node_to_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70dedd22'/>
-      <elf-symbol name='syscon_regmap_lookup_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9bdf56a'/>
-      <elf-symbol name='sysfs_add_file_to_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf6f0e0a'/>
-      <elf-symbol name='sysfs_add_link_to_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15835ed2'/>
-      <elf-symbol name='sysfs_create_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade52431'/>
-      <elf-symbol name='sysfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc643809b'/>
-      <elf-symbol name='sysfs_create_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49e6782c'/>
-      <elf-symbol name='sysfs_create_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfd0dcc0'/>
-      <elf-symbol name='sysfs_create_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c580aaa'/>
+      <elf-symbol name='syscon_node_to_regmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf69392b6'/>
+      <elf-symbol name='syscon_regmap_lookup_by_phandle' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb67639b'/>
+      <elf-symbol name='sysfs_add_file_to_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ab279d'/>
+      <elf-symbol name='sysfs_add_link_to_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd469448'/>
+      <elf-symbol name='sysfs_create_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc38a4c5f'/>
+      <elf-symbol name='sysfs_create_files' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0371306'/>
+      <elf-symbol name='sysfs_create_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb36277e6'/>
+      <elf-symbol name='sysfs_create_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba3967d8'/>
+      <elf-symbol name='sysfs_create_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d4ead16'/>
       <elf-symbol name='sysfs_emit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe783e261'/>
       <elf-symbol name='sysfs_emit_at' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99f2d00a'/>
-      <elf-symbol name='sysfs_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f5a72a0'/>
-      <elf-symbol name='sysfs_remove_file_from_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52086455'/>
-      <elf-symbol name='sysfs_remove_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xae8815c8'/>
-      <elf-symbol name='sysfs_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0914a1d'/>
-      <elf-symbol name='sysfs_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd968e310'/>
-      <elf-symbol name='sysfs_remove_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9cb02b2'/>
-      <elf-symbol name='sysfs_remove_link_from_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd37671e8'/>
+      <elf-symbol name='sysfs_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51c744c1'/>
+      <elf-symbol name='sysfs_remove_file_from_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99350b92'/>
+      <elf-symbol name='sysfs_remove_file_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf2967207'/>
+      <elf-symbol name='sysfs_remove_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3de88b'/>
+      <elf-symbol name='sysfs_remove_groups' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf73be5a4'/>
+      <elf-symbol name='sysfs_remove_link' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x33aafbc9'/>
+      <elf-symbol name='sysfs_remove_link_from_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbedd70e2'/>
       <elf-symbol name='sysfs_streq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x222e7ce2'/>
-      <elf-symbol name='sysfs_update_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x542fc9ce'/>
+      <elf-symbol name='sysfs_update_group' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46cdb6b2'/>
       <elf-symbol name='sysrq_mask' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a17ed66'/>
-      <elf-symbol name='task_active_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b495251'/>
-      <elf-symbol name='task_may_not_preempt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b731107'/>
-      <elf-symbol name='task_rq_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8c340'/>
+      <elf-symbol name='task_active_pid_ns' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ee3769'/>
+      <elf-symbol name='task_may_not_preempt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf5009ea2'/>
+      <elf-symbol name='task_rq_lock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a2676e7'/>
       <elf-symbol name='tasklet_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2364c85a'/>
       <elf-symbol name='tasklet_kill' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea3c74e'/>
       <elf-symbol name='tasklet_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa07d1b3c'/>
       <elf-symbol name='tcpci_get_tcpm_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe111953'/>
       <elf-symbol name='tcpci_irq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f497a3c'/>
-      <elf-symbol name='tcpci_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa263756'/>
+      <elf-symbol name='tcpci_register_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x104013a9'/>
       <elf-symbol name='tcpci_unregister_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc529e32e'/>
       <elf-symbol name='tcpm_cc_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc37b9769'/>
       <elf-symbol name='tcpm_is_toggling' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd974a755'/>
@@ -3204,161 +3204,161 @@
       <elf-symbol name='tcpm_sourcing_vbus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb779665'/>
       <elf-symbol name='tcpm_update_sink_capabilities' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x622a422a'/>
       <elf-symbol name='tcpm_vbus_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceb50012'/>
-      <elf-symbol name='thermal_cdev_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6900ebaf'/>
-      <elf-symbol name='thermal_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa62e5525'/>
-      <elf-symbol name='thermal_cooling_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47a18607'/>
-      <elf-symbol name='thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf5fd5e0'/>
-      <elf-symbol name='thermal_zone_device_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb2c78f2'/>
-      <elf-symbol name='thermal_zone_device_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56a42df8'/>
-      <elf-symbol name='thermal_zone_device_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2854f8a'/>
-      <elf-symbol name='thermal_zone_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ed59737'/>
-      <elf-symbol name='thermal_zone_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d8b7e10'/>
-      <elf-symbol name='thermal_zone_device_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x597d8673'/>
-      <elf-symbol name='thermal_zone_get_slope' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x463a94b0'/>
-      <elf-symbol name='thermal_zone_get_temp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f672fc3'/>
-      <elf-symbol name='thermal_zone_get_zone_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf8fe6fa'/>
-      <elf-symbol name='thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c5332f8'/>
-      <elf-symbol name='thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4375897f'/>
-      <elf-symbol name='thread_group_cputime_adjusted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b1b2842'/>
+      <elf-symbol name='thermal_cdev_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86589204'/>
+      <elf-symbol name='thermal_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xde010c14'/>
+      <elf-symbol name='thermal_cooling_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8669153'/>
+      <elf-symbol name='thermal_of_cooling_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c5802e1'/>
+      <elf-symbol name='thermal_zone_device_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1bca054a'/>
+      <elf-symbol name='thermal_zone_device_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceb0a66f'/>
+      <elf-symbol name='thermal_zone_device_is_enabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbcf76e0'/>
+      <elf-symbol name='thermal_zone_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9d01c3f'/>
+      <elf-symbol name='thermal_zone_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f79f8b7'/>
+      <elf-symbol name='thermal_zone_device_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x474bf3f9'/>
+      <elf-symbol name='thermal_zone_get_slope' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96925b08'/>
+      <elf-symbol name='thermal_zone_get_temp' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f2f9838'/>
+      <elf-symbol name='thermal_zone_get_zone_by_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xba389733'/>
+      <elf-symbol name='thermal_zone_of_sensor_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x387e77d3'/>
+      <elf-symbol name='thermal_zone_of_sensor_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37a181df'/>
+      <elf-symbol name='thread_group_cputime_adjusted' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6537dfc'/>
       <elf-symbol name='tick_nohz_get_idle_calls_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2943498b'/>
       <elf-symbol name='time64_to_tm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfff5afc'/>
       <elf-symbol name='timecounter_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x862258db'/>
       <elf-symbol name='timecounter_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f9e763b'/>
       <elf-symbol name='topology_set_thermal_pressure' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea0dce63'/>
       <elf-symbol name='touch_softlockup_watchdog' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fcb87a1'/>
-      <elf-symbol name='trace_event_buffer_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6271d31'/>
-      <elf-symbol name='trace_event_buffer_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47f65a7'/>
-      <elf-symbol name='trace_event_ignore_this_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec2deccc'/>
-      <elf-symbol name='trace_event_raw_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7815d22f'/>
-      <elf-symbol name='trace_event_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75b1b897'/>
+      <elf-symbol name='trace_event_buffer_commit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd98c9b52'/>
+      <elf-symbol name='trace_event_buffer_reserve' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4e6242'/>
+      <elf-symbol name='trace_event_ignore_this_pid' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4c30a395'/>
+      <elf-symbol name='trace_event_raw_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x57dbff01'/>
+      <elf-symbol name='trace_event_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6373e0b9'/>
       <elf-symbol name='trace_handle_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7381287f'/>
-      <elf-symbol name='trace_output_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50fa7004'/>
+      <elf-symbol name='trace_output_call' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4326b02'/>
       <elf-symbol name='trace_print_array_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3bc72ad'/>
       <elf-symbol name='trace_print_bitmask_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a58dd2d'/>
       <elf-symbol name='trace_print_flags_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99078b39'/>
       <elf-symbol name='trace_print_hex_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe02ba436'/>
       <elf-symbol name='trace_print_symbols_seq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc5c2df4'/>
-      <elf-symbol name='trace_raw_output_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ef0d04'/>
+      <elf-symbol name='trace_raw_output_prep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1362397'/>
       <elf-symbol name='trace_seq_printf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x525d0aa3'/>
       <elf-symbol name='trace_seq_putc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b5f4377'/>
       <elf-symbol name='tracepoint_probe_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x95e102ab'/>
       <elf-symbol name='tracepoint_probe_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbeeece6'/>
-      <elf-symbol name='try_module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12406514'/>
+      <elf-symbol name='try_module_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a986e4d'/>
       <elf-symbol name='try_to_del_timer_sync' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfaf9e645'/>
       <elf-symbol name='try_wait_for_completion' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21ef374c'/>
-      <elf-symbol name='tty_flip_buffer_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe66395f0'/>
-      <elf-symbol name='tty_hangup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b787c8'/>
-      <elf-symbol name='tty_insert_flip_string_fixed_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdec41eb4'/>
-      <elf-symbol name='tty_kref_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf900d62d'/>
-      <elf-symbol name='tty_mode_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35f9a02a'/>
-      <elf-symbol name='tty_port_tty_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98075942'/>
-      <elf-symbol name='tty_register_ldisc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88298f7a'/>
+      <elf-symbol name='tty_flip_buffer_push' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5a58bdfa'/>
+      <elf-symbol name='tty_hangup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3357c2f'/>
+      <elf-symbol name='tty_insert_flip_string_fixed_flag' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5444360'/>
+      <elf-symbol name='tty_kref_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3eeaaf66'/>
+      <elf-symbol name='tty_mode_ioctl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcbda9212'/>
+      <elf-symbol name='tty_port_tty_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a9f9977'/>
+      <elf-symbol name='tty_register_ldisc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45b53343'/>
       <elf-symbol name='tty_termios_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x409873e3'/>
       <elf-symbol name='tty_termios_encode_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5641485b'/>
       <elf-symbol name='tty_unregister_ldisc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa120d33c'/>
-      <elf-symbol name='typec_switch_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbbbc9f23'/>
-      <elf-symbol name='typec_switch_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50918654'/>
-      <elf-symbol name='typec_switch_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64ae4df6'/>
-      <elf-symbol name='uart_add_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1181c7da'/>
-      <elf-symbol name='uart_console_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcb53aed0'/>
-      <elf-symbol name='uart_console_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50708754'/>
-      <elf-symbol name='uart_get_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ce3d604'/>
+      <elf-symbol name='typec_switch_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cfc0407'/>
+      <elf-symbol name='typec_switch_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8209d06d'/>
+      <elf-symbol name='typec_switch_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75988fdd'/>
+      <elf-symbol name='uart_add_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf69e212f'/>
+      <elf-symbol name='uart_console_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7a6c86b'/>
+      <elf-symbol name='uart_console_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x927e1783'/>
+      <elf-symbol name='uart_get_baud_rate' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40519c55'/>
       <elf-symbol name='uart_parse_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f72a987'/>
-      <elf-symbol name='uart_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x219b572'/>
-      <elf-symbol name='uart_remove_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a490080'/>
-      <elf-symbol name='uart_resume_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d492b33'/>
-      <elf-symbol name='uart_set_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c325cf8'/>
-      <elf-symbol name='uart_suspend_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1fc7d1'/>
-      <elf-symbol name='uart_try_toggle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6426c6b0'/>
-      <elf-symbol name='uart_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf707180d'/>
-      <elf-symbol name='uart_update_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x49ded97c'/>
-      <elf-symbol name='uart_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd9d34df'/>
-      <elf-symbol name='uclamp_eff_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3d402716'/>
-      <elf-symbol name='udp4_hwcsum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf88f9127'/>
-      <elf-symbol name='ufshcd_bkops_ctrl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd920e320'/>
-      <elf-symbol name='ufshcd_dme_configure_adapt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x545d1738'/>
-      <elf-symbol name='ufshcd_dme_get_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e39352e'/>
-      <elf-symbol name='ufshcd_dme_set_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x65fe13fd'/>
-      <elf-symbol name='ufshcd_dump_regs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1ceff03'/>
-      <elf-symbol name='ufshcd_get_local_unipro_ver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2938536'/>
+      <elf-symbol name='uart_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8636d50d'/>
+      <elf-symbol name='uart_remove_one_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca19ff35'/>
+      <elf-symbol name='uart_resume_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39b3e94a'/>
+      <elf-symbol name='uart_set_options' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1183b0f0'/>
+      <elf-symbol name='uart_suspend_port' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf31ec878'/>
+      <elf-symbol name='uart_try_toggle_sysrq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3286d5d2'/>
+      <elf-symbol name='uart_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82c84608'/>
+      <elf-symbol name='uart_update_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc01ff42f'/>
+      <elf-symbol name='uart_write_wakeup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19325384'/>
+      <elf-symbol name='uclamp_eff_value' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4ce9b76'/>
+      <elf-symbol name='udp4_hwcsum' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x926044a'/>
+      <elf-symbol name='ufshcd_bkops_ctrl' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cf39668'/>
+      <elf-symbol name='ufshcd_dme_configure_adapt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9cb95ea'/>
+      <elf-symbol name='ufshcd_dme_get_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82dc0d53'/>
+      <elf-symbol name='ufshcd_dme_set_attr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4117a8a7'/>
+      <elf-symbol name='ufshcd_dump_regs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa5dc367e'/>
+      <elf-symbol name='ufshcd_get_local_unipro_ver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd110340'/>
       <elf-symbol name='ufshcd_get_pwr_dev_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff85cd6b'/>
-      <elf-symbol name='ufshcd_hold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x537b321c'/>
+      <elf-symbol name='ufshcd_hold' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10321d68'/>
       <elf-symbol name='ufshcd_init_pwr_dev_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54c946de'/>
-      <elf-symbol name='ufshcd_pltfrm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf9445da7'/>
-      <elf-symbol name='ufshcd_pltfrm_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf7f326c'/>
-      <elf-symbol name='ufshcd_query_attr_retry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x790374a1'/>
-      <elf-symbol name='ufshcd_query_flag_retry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9d05b9c'/>
-      <elf-symbol name='ufshcd_read_desc_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab27b99d'/>
-      <elf-symbol name='ufshcd_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6315a2bf'/>
-      <elf-symbol name='ufshcd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c214c'/>
-      <elf-symbol name='ufshcd_resume_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5c95fae0'/>
-      <elf-symbol name='ufshcd_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcccf88f6'/>
-      <elf-symbol name='ufshcd_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2f5bbf9'/>
-      <elf-symbol name='ufshcd_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ec1cf8f'/>
-      <elf-symbol name='ufshcd_suspend_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa9cebb4'/>
-      <elf-symbol name='ufshcd_system_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ed0ea7e'/>
-      <elf-symbol name='ufshcd_system_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x124af89'/>
-      <elf-symbol name='ufshcd_uic_hibern8_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd1d1877'/>
-      <elf-symbol name='ufshcd_uic_hibern8_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa13f8077'/>
-      <elf-symbol name='uio_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa51bcc00'/>
-      <elf-symbol name='unlock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcfdf1a93'/>
-      <elf-symbol name='unmap_mapping_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3037d1d'/>
-      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf607ac6b'/>
+      <elf-symbol name='ufshcd_pltfrm_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb822d52'/>
+      <elf-symbol name='ufshcd_pltfrm_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x957282f'/>
+      <elf-symbol name='ufshcd_query_attr_retry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x483eb3a7'/>
+      <elf-symbol name='ufshcd_query_flag_retry' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97500c2a'/>
+      <elf-symbol name='ufshcd_read_desc_param' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a47723e'/>
+      <elf-symbol name='ufshcd_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ed7eec1'/>
+      <elf-symbol name='ufshcd_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ba083a4'/>
+      <elf-symbol name='ufshcd_resume_complete' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff2a1dbb'/>
+      <elf-symbol name='ufshcd_runtime_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a1ddb48'/>
+      <elf-symbol name='ufshcd_runtime_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef05d4c3'/>
+      <elf-symbol name='ufshcd_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76d14611'/>
+      <elf-symbol name='ufshcd_suspend_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b85b8cf'/>
+      <elf-symbol name='ufshcd_system_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d9ffaa5'/>
+      <elf-symbol name='ufshcd_system_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3179c827'/>
+      <elf-symbol name='ufshcd_uic_hibern8_enter' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd3ca25c'/>
+      <elf-symbol name='ufshcd_uic_hibern8_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff5643e0'/>
+      <elf-symbol name='uio_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7b369ad'/>
+      <elf-symbol name='unlock_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7069c12'/>
+      <elf-symbol name='unmap_mapping_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeaab9fd0'/>
+      <elf-symbol name='unpin_user_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb44a305'/>
       <elf-symbol name='unregister_blkdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5a459dc'/>
-      <elf-symbol name='unregister_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2a76434d'/>
+      <elf-symbol name='unregister_candev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7f702cc'/>
       <elf-symbol name='unregister_chrdev_region' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6091b333'/>
-      <elf-symbol name='unregister_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabdccf3'/>
+      <elf-symbol name='unregister_filesystem' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x920c11a9'/>
       <elf-symbol name='unregister_inet6addr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fe252cc'/>
       <elf-symbol name='unregister_inetaddr_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe029963'/>
-      <elf-symbol name='unregister_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4ebf6669'/>
+      <elf-symbol name='unregister_netdev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dcbf1a4'/>
       <elf-symbol name='unregister_netdevice_many' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9fdecc31'/>
       <elf-symbol name='unregister_netdevice_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d0d6206'/>
-      <elf-symbol name='unregister_netdevice_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefa9a4c0'/>
+      <elf-symbol name='unregister_netdevice_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9eadb81'/>
       <elf-symbol name='unregister_netevent_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fe1eddf'/>
       <elf-symbol name='unregister_oom_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc617f82c'/>
-      <elf-symbol name='unregister_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74492d9d'/>
-      <elf-symbol name='unregister_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x31b22a6'/>
+      <elf-symbol name='unregister_pernet_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee5cceec'/>
+      <elf-symbol name='unregister_pernet_subsys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c33b0ac'/>
       <elf-symbol name='unregister_pm_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7681946c'/>
       <elf-symbol name='unregister_reboot_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac1a55be'/>
       <elf-symbol name='unregister_restart_handler' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d59096'/>
-      <elf-symbol name='unregister_rpmsg_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d1873c7'/>
-      <elf-symbol name='unregister_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8395c86'/>
+      <elf-symbol name='unregister_rpmsg_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x468befaf'/>
+      <elf-symbol name='unregister_shrinker' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbac9a1c6'/>
       <elf-symbol name='unregister_syscore_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfa1eb910'/>
       <elf-symbol name='unregister_sysctl_table' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd691c6a9'/>
-      <elf-symbol name='unregister_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b941620'/>
-      <elf-symbol name='unregister_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ca6c42'/>
+      <elf-symbol name='unregister_virtio_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55dac545'/>
+      <elf-symbol name='unregister_virtio_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62dad95a'/>
       <elf-symbol name='unregister_vmap_purge_notifier' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7c69a63'/>
       <elf-symbol name='up' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf2a6966'/>
       <elf-symbol name='up_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b50e951'/>
       <elf-symbol name='up_write' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x20d81059'/>
-      <elf-symbol name='update_devfreq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x750b434d'/>
-      <elf-symbol name='update_rq_clock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe79f369f'/>
-      <elf-symbol name='usb_add_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85db1e69'/>
-      <elf-symbol name='usb_add_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x67f580dd'/>
-      <elf-symbol name='usb_alloc_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd085060f'/>
-      <elf-symbol name='usb_alloc_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a27b4f'/>
+      <elf-symbol name='update_devfreq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8ef30e9'/>
+      <elf-symbol name='update_rq_clock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb39ecb'/>
+      <elf-symbol name='usb_add_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdc2ec3a'/>
+      <elf-symbol name='usb_add_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b74b49a'/>
+      <elf-symbol name='usb_alloc_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4e9ab56c'/>
+      <elf-symbol name='usb_alloc_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c528f53'/>
       <elf-symbol name='usb_amd_dev_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9b9df41'/>
       <elf-symbol name='usb_amd_prefetch_quirk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd87fc0a0'/>
       <elf-symbol name='usb_amd_quirk_pll_check' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf4014ff'/>
       <elf-symbol name='usb_amd_quirk_pll_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc825d6c'/>
       <elf-symbol name='usb_amd_quirk_pll_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10ecc52c'/>
-      <elf-symbol name='usb_anchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x684877e8'/>
-      <elf-symbol name='usb_assign_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4aa5d55d'/>
-      <elf-symbol name='usb_autopm_get_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14baaf6f'/>
-      <elf-symbol name='usb_autopm_put_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7a50b11'/>
-      <elf-symbol name='usb_bulk_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc35060b'/>
+      <elf-symbol name='usb_anchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1466849'/>
+      <elf-symbol name='usb_assign_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd160d76'/>
+      <elf-symbol name='usb_autopm_get_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f215e11'/>
+      <elf-symbol name='usb_autopm_put_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d475e81'/>
+      <elf-symbol name='usb_bulk_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34189573'/>
       <elf-symbol name='usb_calc_bus_time' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7e64181d'/>
-      <elf-symbol name='usb_control_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b4c58cd'/>
+      <elf-symbol name='usb_control_msg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9872acd9'/>
       <elf-symbol name='usb_copy_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e09263f'/>
-      <elf-symbol name='usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb3113070'/>
-      <elf-symbol name='usb_create_shared_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7aee2d6e'/>
-      <elf-symbol name='usb_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe7cfe98'/>
+      <elf-symbol name='usb_create_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb8e48bc3'/>
+      <elf-symbol name='usb_create_shared_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7a99146'/>
+      <elf-symbol name='usb_deregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6fdca8d3'/>
       <elf-symbol name='usb_disabled' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x19a304ba'/>
-      <elf-symbol name='usb_driver_claim_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd0740d5'/>
-      <elf-symbol name='usb_driver_release_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbf97068c'/>
-      <elf-symbol name='usb_enable_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee0e3169'/>
+      <elf-symbol name='usb_driver_claim_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37f204ee'/>
+      <elf-symbol name='usb_driver_release_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b827e3f'/>
+      <elf-symbol name='usb_enable_autosuspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6315ada8'/>
       <elf-symbol name='usb_ep_alloc_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880d48e4'/>
-      <elf-symbol name='usb_ep_autoconfig' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x207079fa'/>
+      <elf-symbol name='usb_ep_autoconfig' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8457a85'/>
       <elf-symbol name='usb_ep_clear_halt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9370b708'/>
       <elf-symbol name='usb_ep_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbadfaba7'/>
       <elf-symbol name='usb_ep_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1aec8cdd'/>
@@ -3368,241 +3368,241 @@
       <elf-symbol name='usb_ep_free_request' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d6766db'/>
       <elf-symbol name='usb_ep_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4616fc7'/>
       <elf-symbol name='usb_ep_set_halt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8310b89e'/>
-      <elf-symbol name='usb_free_all_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe1188aee'/>
-      <elf-symbol name='usb_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x447fe056'/>
-      <elf-symbol name='usb_free_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb98ec8e2'/>
-      <elf-symbol name='usb_function_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91174c19'/>
-      <elf-symbol name='usb_function_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x260ab682'/>
-      <elf-symbol name='usb_gadget_probe_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x189df051'/>
-      <elf-symbol name='usb_gadget_set_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8689476f'/>
-      <elf-symbol name='usb_gadget_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9748fc08'/>
-      <elf-symbol name='usb_gadget_vbus_draw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a13080e'/>
-      <elf-symbol name='usb_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1939c931'/>
-      <elf-symbol name='usb_get_from_anchor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9479807'/>
+      <elf-symbol name='usb_free_all_descriptors' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x265ae595'/>
+      <elf-symbol name='usb_free_coherent' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36a50789'/>
+      <elf-symbol name='usb_free_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2084a20'/>
+      <elf-symbol name='usb_function_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0177e42'/>
+      <elf-symbol name='usb_function_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa32ee667'/>
+      <elf-symbol name='usb_gadget_probe_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf21330f5'/>
+      <elf-symbol name='usb_gadget_set_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x758e4518'/>
+      <elf-symbol name='usb_gadget_unregister_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c4b2a51'/>
+      <elf-symbol name='usb_gadget_vbus_draw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x934b6bb9'/>
+      <elf-symbol name='usb_get_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4af59345'/>
+      <elf-symbol name='usb_get_from_anchor' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e3df6ce'/>
       <elf-symbol name='usb_get_gadget_udc_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b88f41'/>
-      <elf-symbol name='usb_gstrings_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45cf6b90'/>
-      <elf-symbol name='usb_hc_died' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x788dbd87'/>
-      <elf-symbol name='usb_hcd_check_unlink_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4566980c'/>
-      <elf-symbol name='usb_hcd_giveback_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea9d0fcb'/>
-      <elf-symbol name='usb_hcd_is_primary_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6dad2191'/>
-      <elf-symbol name='usb_hcd_link_urb_to_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef68b7db'/>
-      <elf-symbol name='usb_hcd_pci_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd94c9789'/>
-      <elf-symbol name='usb_hcd_pci_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b26df68'/>
-      <elf-symbol name='usb_hcd_pci_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec24a61a'/>
-      <elf-symbol name='usb_hcd_platform_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb5f7066'/>
-      <elf-symbol name='usb_hcd_poll_rh_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76629662'/>
-      <elf-symbol name='usb_hcd_resume_root_hub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x29ab89a9'/>
-      <elf-symbol name='usb_hcd_unlink_urb_from_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x174c7fa1'/>
-      <elf-symbol name='usb_hub_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77a0fcdb'/>
-      <elf-symbol name='usb_ifnum_to_if' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3a694b5'/>
-      <elf-symbol name='usb_interface_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xec3385da'/>
+      <elf-symbol name='usb_gstrings_attach' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e317566'/>
+      <elf-symbol name='usb_hc_died' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f3e7f52'/>
+      <elf-symbol name='usb_hcd_check_unlink_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x201c5313'/>
+      <elf-symbol name='usb_hcd_giveback_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2c840d0'/>
+      <elf-symbol name='usb_hcd_is_primary_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x42c9e5da'/>
+      <elf-symbol name='usb_hcd_link_urb_to_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x22bb556b'/>
+      <elf-symbol name='usb_hcd_pci_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdcc7232f'/>
+      <elf-symbol name='usb_hcd_pci_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa9f1260'/>
+      <elf-symbol name='usb_hcd_pci_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x32fb938b'/>
+      <elf-symbol name='usb_hcd_platform_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5630a5bf'/>
+      <elf-symbol name='usb_hcd_poll_rh_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe3637c11'/>
+      <elf-symbol name='usb_hcd_resume_root_hub' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb21aab'/>
+      <elf-symbol name='usb_hcd_unlink_urb_from_ep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13e8cd8'/>
+      <elf-symbol name='usb_hub_find_child' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcc52ff39'/>
+      <elf-symbol name='usb_ifnum_to_if' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38cdd89f'/>
+      <elf-symbol name='usb_interface_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69bb6c73'/>
       <elf-symbol name='usb_kill_anchored_urbs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x962c8ae1'/>
-      <elf-symbol name='usb_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8541c7c3'/>
-      <elf-symbol name='usb_os_desc_prepare_interf_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa6460ddc'/>
+      <elf-symbol name='usb_match_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9076acb8'/>
+      <elf-symbol name='usb_os_desc_prepare_interf_dir' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc7fdb1f6'/>
       <elf-symbol name='usb_otg_state_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2f0d9053'/>
-      <elf-symbol name='usb_put_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8939becb'/>
-      <elf-symbol name='usb_put_function_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd71f1853'/>
-      <elf-symbol name='usb_put_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43ca3f4c'/>
-      <elf-symbol name='usb_queue_reset_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81796706'/>
-      <elf-symbol name='usb_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd3565c8'/>
+      <elf-symbol name='usb_put_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf3f609c4'/>
+      <elf-symbol name='usb_put_function_instance' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fae885e'/>
+      <elf-symbol name='usb_put_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd49217b3'/>
+      <elf-symbol name='usb_queue_reset_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0b6ec9c'/>
+      <elf-symbol name='usb_register_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x550c04a8'/>
       <elf-symbol name='usb_register_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x89bbafc6'/>
-      <elf-symbol name='usb_remove_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5dc9728f'/>
-      <elf-symbol name='usb_role_switch_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62214251'/>
+      <elf-symbol name='usb_remove_hcd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c55bd6b'/>
+      <elf-symbol name='usb_role_switch_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50b12f1d'/>
       <elf-symbol name='usb_role_switch_get_drvdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1690b503'/>
       <elf-symbol name='usb_role_switch_put' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9fd634a'/>
-      <elf-symbol name='usb_role_switch_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5e07cdb'/>
+      <elf-symbol name='usb_role_switch_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3351595'/>
       <elf-symbol name='usb_role_switch_set_role' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5474690'/>
       <elf-symbol name='usb_role_switch_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2882d40e'/>
-      <elf-symbol name='usb_root_hub_lost_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb605ccc1'/>
+      <elf-symbol name='usb_root_hub_lost_power' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d185c90'/>
       <elf-symbol name='usb_scuttle_anchored_urbs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x807766ea'/>
-      <elf-symbol name='usb_set_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeae5af77'/>
+      <elf-symbol name='usb_set_interface' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56e068d2'/>
       <elf-symbol name='usb_speed_string' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77ae495d'/>
-      <elf-symbol name='usb_string_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb425390'/>
-      <elf-symbol name='usb_submit_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa17db968'/>
-      <elf-symbol name='usb_unanchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x972f7566'/>
+      <elf-symbol name='usb_string_id' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x218ac5c2'/>
+      <elf-symbol name='usb_submit_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6427dece'/>
+      <elf-symbol name='usb_unanchor_urb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8b47c0b0'/>
       <elf-symbol name='usb_unregister_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x811dc334'/>
-      <elf-symbol name='usbnet_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8a6f3b26'/>
-      <elf-symbol name='usbnet_get_endpoints' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf4a0d4e7'/>
-      <elf-symbol name='usbnet_get_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7af7a9f4'/>
-      <elf-symbol name='usbnet_get_stats64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf619e32'/>
-      <elf-symbol name='usbnet_link_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4c4db68'/>
-      <elf-symbol name='usbnet_nway_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8e4d0b0'/>
-      <elf-symbol name='usbnet_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a4a03b1'/>
-      <elf-symbol name='usbnet_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf312a7a'/>
-      <elf-symbol name='usbnet_read_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98d91097'/>
-      <elf-symbol name='usbnet_read_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa22ebef'/>
-      <elf-symbol name='usbnet_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x742892d5'/>
-      <elf-symbol name='usbnet_set_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd56b61'/>
-      <elf-symbol name='usbnet_skb_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x17292e23'/>
-      <elf-symbol name='usbnet_start_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb35916a6'/>
-      <elf-symbol name='usbnet_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc086bc1a'/>
-      <elf-symbol name='usbnet_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9eb7e670'/>
-      <elf-symbol name='usbnet_tx_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x39a0f97c'/>
-      <elf-symbol name='usbnet_update_max_qlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4b31e3b'/>
-      <elf-symbol name='usbnet_write_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x131f31c5'/>
-      <elf-symbol name='usbnet_write_cmd_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9a5acb5d'/>
-      <elf-symbol name='usbnet_write_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1c2d58b6'/>
+      <elf-symbol name='usbnet_disconnect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2b6e561'/>
+      <elf-symbol name='usbnet_get_endpoints' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d6af2f1'/>
+      <elf-symbol name='usbnet_get_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f762cdd'/>
+      <elf-symbol name='usbnet_get_stats64' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x61bc960c'/>
+      <elf-symbol name='usbnet_link_change' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x588f5687'/>
+      <elf-symbol name='usbnet_nway_reset' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c8cc556'/>
+      <elf-symbol name='usbnet_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa3edf80a'/>
+      <elf-symbol name='usbnet_probe' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbe55ce1e'/>
+      <elf-symbol name='usbnet_read_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23039828'/>
+      <elf-symbol name='usbnet_read_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x27f28519'/>
+      <elf-symbol name='usbnet_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x16d7e920'/>
+      <elf-symbol name='usbnet_set_msglevel' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d1605e2'/>
+      <elf-symbol name='usbnet_skb_return' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7268287b'/>
+      <elf-symbol name='usbnet_start_xmit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd739b1'/>
+      <elf-symbol name='usbnet_stop' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2093681c'/>
+      <elf-symbol name='usbnet_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1258e82d'/>
+      <elf-symbol name='usbnet_tx_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x202e720a'/>
+      <elf-symbol name='usbnet_update_max_qlen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fdab647'/>
+      <elf-symbol name='usbnet_write_cmd' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98f86fd6'/>
+      <elf-symbol name='usbnet_write_cmd_async' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca187e7f'/>
+      <elf-symbol name='usbnet_write_cmd_nopm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d018a54'/>
       <elf-symbol name='usleep_range' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x12a38747'/>
       <elf-symbol name='uuid_gen' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x69e683de'/>
-      <elf-symbol name='v4l2_ctrl_handler_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9609b6ee'/>
-      <elf-symbol name='v4l2_ctrl_handler_init_class' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd5f51a0e'/>
-      <elf-symbol name='v4l2_ctrl_log_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5d91eb72'/>
-      <elf-symbol name='v4l2_ctrl_new_custom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x329ae214'/>
-      <elf-symbol name='v4l2_ctrl_new_std' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc687a599'/>
-      <elf-symbol name='v4l2_ctrl_new_std_menu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac092950'/>
-      <elf-symbol name='v4l2_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd70cbb2b'/>
-      <elf-symbol name='v4l2_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7783d7ef'/>
-      <elf-symbol name='v4l2_fh_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f65a12b'/>
-      <elf-symbol name='v4l2_fh_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd07eb37e'/>
-      <elf-symbol name='v4l2_fh_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3735a644'/>
-      <elf-symbol name='v4l2_fh_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x625efb02'/>
-      <elf-symbol name='v4l2_fh_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86e3af4a'/>
-      <elf-symbol name='v4l2_m2m_buf_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x258a5ff2'/>
-      <elf-symbol name='v4l2_m2m_buf_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc3b7174'/>
-      <elf-symbol name='v4l2_m2m_ctx_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea42cf1f'/>
-      <elf-symbol name='v4l2_m2m_ctx_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7493bc24'/>
-      <elf-symbol name='v4l2_m2m_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x742aed31'/>
-      <elf-symbol name='v4l2_m2m_fop_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c8f7394'/>
+      <elf-symbol name='v4l2_ctrl_handler_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x596e376a'/>
+      <elf-symbol name='v4l2_ctrl_handler_init_class' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf138a392'/>
+      <elf-symbol name='v4l2_ctrl_log_status' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc40e519a'/>
+      <elf-symbol name='v4l2_ctrl_new_custom' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x491c6428'/>
+      <elf-symbol name='v4l2_ctrl_new_std' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cf75d86'/>
+      <elf-symbol name='v4l2_ctrl_new_std_menu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44f35d81'/>
+      <elf-symbol name='v4l2_device_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2ce6652d'/>
+      <elf-symbol name='v4l2_device_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5bf0ee6'/>
+      <elf-symbol name='v4l2_fh_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1201d802'/>
+      <elf-symbol name='v4l2_fh_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda0104fc'/>
+      <elf-symbol name='v4l2_fh_exit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e626b62'/>
+      <elf-symbol name='v4l2_fh_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea0e84d8'/>
+      <elf-symbol name='v4l2_fh_open' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x51b66bb2'/>
+      <elf-symbol name='v4l2_m2m_buf_queue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5073aeba'/>
+      <elf-symbol name='v4l2_m2m_buf_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5adf7b01'/>
+      <elf-symbol name='v4l2_m2m_ctx_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10c72f94'/>
+      <elf-symbol name='v4l2_m2m_ctx_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74ec3c4c'/>
+      <elf-symbol name='v4l2_m2m_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7420f5a0'/>
+      <elf-symbol name='v4l2_m2m_fop_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeb4a0bfe'/>
       <elf-symbol name='v4l2_m2m_get_curr_priv' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x459e133f'/>
-      <elf-symbol name='v4l2_m2m_get_vq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x13ccb6c3'/>
+      <elf-symbol name='v4l2_m2m_get_vq' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x96871bcd'/>
       <elf-symbol name='v4l2_m2m_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x730f2eae'/>
-      <elf-symbol name='v4l2_m2m_ioctl_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee534dec'/>
-      <elf-symbol name='v4l2_m2m_ioctl_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4fb4c169'/>
-      <elf-symbol name='v4l2_m2m_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45a82327'/>
-      <elf-symbol name='v4l2_m2m_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fb46642'/>
-      <elf-symbol name='v4l2_m2m_ioctl_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2fced1ca'/>
-      <elf-symbol name='v4l2_m2m_job_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40e86d2c'/>
-      <elf-symbol name='v4l2_m2m_next_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8d3cd793'/>
-      <elf-symbol name='v4l2_m2m_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd072b53f'/>
+      <elf-symbol name='v4l2_m2m_ioctl_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x675b17e5'/>
+      <elf-symbol name='v4l2_m2m_ioctl_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x38677e6d'/>
+      <elf-symbol name='v4l2_m2m_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8c4db07'/>
+      <elf-symbol name='v4l2_m2m_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92cd7bdd'/>
+      <elf-symbol name='v4l2_m2m_ioctl_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ec730c1'/>
+      <elf-symbol name='v4l2_m2m_job_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15b26329'/>
+      <elf-symbol name='v4l2_m2m_next_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2bdfc7e7'/>
+      <elf-symbol name='v4l2_m2m_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc67ea5ac'/>
       <elf-symbol name='v4l2_m2m_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc6fca5ad'/>
-      <elf-symbol name='vb2_buffer_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd2a81230'/>
+      <elf-symbol name='vb2_buffer_done' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf3d299a'/>
       <elf-symbol name='vb2_create_framevec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa21fa765'/>
       <elf-symbol name='vb2_destroy_framevec' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccd197c7'/>
-      <elf-symbol name='vb2_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xceeb727c'/>
-      <elf-symbol name='vb2_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0d85633'/>
-      <elf-symbol name='vb2_fop_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f6c6788'/>
-      <elf-symbol name='vb2_fop_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdc2f23ca'/>
-      <elf-symbol name='vb2_fop_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb33da09a'/>
-      <elf-symbol name='vb2_ioctl_create_bufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7652ddec'/>
-      <elf-symbol name='vb2_ioctl_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb926aea7'/>
-      <elf-symbol name='vb2_ioctl_expbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6b1fb46'/>
-      <elf-symbol name='vb2_ioctl_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84c9c0a9'/>
-      <elf-symbol name='vb2_ioctl_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x66478683'/>
-      <elf-symbol name='vb2_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb938cccf'/>
-      <elf-symbol name='vb2_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c05f809'/>
-      <elf-symbol name='vb2_ioctl_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2250eea8'/>
-      <elf-symbol name='vb2_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd857de69'/>
-      <elf-symbol name='vb2_ops_wait_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88465c8a'/>
-      <elf-symbol name='vb2_ops_wait_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6ed175d2'/>
-      <elf-symbol name='vb2_plane_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe068f685'/>
-      <elf-symbol name='vb2_plane_vaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7b38d2f4'/>
-      <elf-symbol name='vb2_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbd2ff623'/>
-      <elf-symbol name='vb2_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xade8e32c'/>
-      <elf-symbol name='vb2_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x41779bb0'/>
-      <elf-symbol name='vb2_queue_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x731ead32'/>
-      <elf-symbol name='vb2_queue_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x52842dbf'/>
-      <elf-symbol name='vb2_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43b3e84'/>
-      <elf-symbol name='vb2_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbc53243c'/>
-      <elf-symbol name='vb2_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5397c067'/>
-      <elf-symbol name='vb2_wait_for_all_buffers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e66d890'/>
-      <elf-symbol name='vchan_dma_desc_free_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x524afb39'/>
-      <elf-symbol name='vchan_find_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x650911f0'/>
-      <elf-symbol name='vchan_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf510d676'/>
-      <elf-symbol name='vchan_tx_desc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb143041'/>
-      <elf-symbol name='vchan_tx_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x623d6e48'/>
+      <elf-symbol name='vb2_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6f35f3'/>
+      <elf-symbol name='vb2_fop_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4d6ea285'/>
+      <elf-symbol name='vb2_fop_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2dc3689'/>
+      <elf-symbol name='vb2_fop_read' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb25fe423'/>
+      <elf-symbol name='vb2_fop_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70e6212b'/>
+      <elf-symbol name='vb2_ioctl_create_bufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2dd9be02'/>
+      <elf-symbol name='vb2_ioctl_dqbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdf08765'/>
+      <elf-symbol name='vb2_ioctl_expbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x798fccc4'/>
+      <elf-symbol name='vb2_ioctl_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ff16b0b'/>
+      <elf-symbol name='vb2_ioctl_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe91795fd'/>
+      <elf-symbol name='vb2_ioctl_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebcd05c6'/>
+      <elf-symbol name='vb2_ioctl_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6736a14'/>
+      <elf-symbol name='vb2_ioctl_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4fb8aad'/>
+      <elf-symbol name='vb2_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f37dc59'/>
+      <elf-symbol name='vb2_ops_wait_finish' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfead5cd2'/>
+      <elf-symbol name='vb2_ops_wait_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x402d778f'/>
+      <elf-symbol name='vb2_plane_cookie' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x695dca84'/>
+      <elf-symbol name='vb2_plane_vaddr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a058011'/>
+      <elf-symbol name='vb2_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf0b324ce'/>
+      <elf-symbol name='vb2_qbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabdf70bc'/>
+      <elf-symbol name='vb2_querybuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5d81fb5'/>
+      <elf-symbol name='vb2_queue_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2eca141c'/>
+      <elf-symbol name='vb2_queue_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40d40a05'/>
+      <elf-symbol name='vb2_reqbufs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cbe0349'/>
+      <elf-symbol name='vb2_streamoff' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7bcc7e4d'/>
+      <elf-symbol name='vb2_streamon' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xee40a1ca'/>
+      <elf-symbol name='vb2_wait_for_all_buffers' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdfab1cdd'/>
+      <elf-symbol name='vchan_dma_desc_free_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf47f5ac1'/>
+      <elf-symbol name='vchan_find_desc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd970aac9'/>
+      <elf-symbol name='vchan_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f555de5'/>
+      <elf-symbol name='vchan_tx_desc_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcd303f18'/>
+      <elf-symbol name='vchan_tx_submit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9abce7a0'/>
       <elf-symbol name='vfree' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x999e8297'/>
-      <elf-symbol name='video_devdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xea083b50'/>
-      <elf-symbol name='video_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb43f6a'/>
-      <elf-symbol name='video_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30ffd0e3'/>
-      <elf-symbol name='video_device_release_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3c8f292d'/>
-      <elf-symbol name='video_ioctl2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82cf2086'/>
-      <elf-symbol name='video_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdca301e3'/>
-      <elf-symbol name='virtio_break_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x75ab92b0'/>
-      <elf-symbol name='virtio_check_driver_offered_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0792ccc'/>
-      <elf-symbol name='virtio_config_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5514a43b'/>
-      <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8f7a054f'/>
-      <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc712be6f'/>
-      <elf-symbol name='virtio_max_dma_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe9fa287'/>
-      <elf-symbol name='virtio_transport_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaf56f400'/>
-      <elf-symbol name='virtio_transport_deliver_tap_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cacc28a'/>
-      <elf-symbol name='virtio_transport_destruct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40113435'/>
+      <elf-symbol name='video_devdata' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d86f058'/>
+      <elf-symbol name='video_device_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4ef3c14'/>
+      <elf-symbol name='video_device_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x23e687be'/>
+      <elf-symbol name='video_device_release_empty' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa575c8e7'/>
+      <elf-symbol name='video_ioctl2' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b2ef5c5'/>
+      <elf-symbol name='video_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x428c18ba'/>
+      <elf-symbol name='virtio_break_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3644a8f6'/>
+      <elf-symbol name='virtio_check_driver_offered_feature' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd342ffe0'/>
+      <elf-symbol name='virtio_config_changed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56cf5dd5'/>
+      <elf-symbol name='virtio_device_freeze' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x30e64997'/>
+      <elf-symbol name='virtio_device_restore' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc1330833'/>
+      <elf-symbol name='virtio_max_dma_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77bdcdb1'/>
+      <elf-symbol name='virtio_transport_connect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3bf261f7'/>
+      <elf-symbol name='virtio_transport_deliver_tap_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe39cca8e'/>
+      <elf-symbol name='virtio_transport_destruct' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb579b472'/>
       <elf-symbol name='virtio_transport_dgram_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbabd30f5'/>
-      <elf-symbol name='virtio_transport_dgram_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdbe781ce'/>
-      <elf-symbol name='virtio_transport_dgram_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdaa70748'/>
-      <elf-symbol name='virtio_transport_dgram_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d091b09'/>
-      <elf-symbol name='virtio_transport_do_socket_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88af1184'/>
-      <elf-symbol name='virtio_transport_free_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xecced2b3'/>
-      <elf-symbol name='virtio_transport_notify_buffer_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3200796a'/>
-      <elf-symbol name='virtio_transport_notify_poll_in' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc2912103'/>
-      <elf-symbol name='virtio_transport_notify_poll_out' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x323b8ff2'/>
-      <elf-symbol name='virtio_transport_notify_recv_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x11e95af7'/>
-      <elf-symbol name='virtio_transport_notify_recv_post_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x15fb7f4d'/>
-      <elf-symbol name='virtio_transport_notify_recv_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6b47c5cc'/>
-      <elf-symbol name='virtio_transport_notify_recv_pre_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6c99a2c6'/>
-      <elf-symbol name='virtio_transport_notify_send_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x82d0afae'/>
-      <elf-symbol name='virtio_transport_notify_send_post_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x70570b00'/>
-      <elf-symbol name='virtio_transport_notify_send_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x54d9446'/>
-      <elf-symbol name='virtio_transport_notify_send_pre_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x88fb6239'/>
-      <elf-symbol name='virtio_transport_recv_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2cf47ddd'/>
-      <elf-symbol name='virtio_transport_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc44d1d11'/>
-      <elf-symbol name='virtio_transport_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x26942b34'/>
+      <elf-symbol name='virtio_transport_dgram_bind' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc856da22'/>
+      <elf-symbol name='virtio_transport_dgram_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6f18427c'/>
+      <elf-symbol name='virtio_transport_dgram_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfe8a4358'/>
+      <elf-symbol name='virtio_transport_do_socket_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd4369811'/>
+      <elf-symbol name='virtio_transport_free_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe06cb022'/>
+      <elf-symbol name='virtio_transport_notify_buffer_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e39d853'/>
+      <elf-symbol name='virtio_transport_notify_poll_in' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x97b7551f'/>
+      <elf-symbol name='virtio_transport_notify_poll_out' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2eaec38'/>
+      <elf-symbol name='virtio_transport_notify_recv_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x99ec5ff7'/>
+      <elf-symbol name='virtio_transport_notify_recv_post_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd87b2f4b'/>
+      <elf-symbol name='virtio_transport_notify_recv_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1f0be7ea'/>
+      <elf-symbol name='virtio_transport_notify_recv_pre_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfeaacd0d'/>
+      <elf-symbol name='virtio_transport_notify_send_init' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6e3a07c7'/>
+      <elf-symbol name='virtio_transport_notify_send_post_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x56ccb160'/>
+      <elf-symbol name='virtio_transport_notify_send_pre_block' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7ec27068'/>
+      <elf-symbol name='virtio_transport_notify_send_pre_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfc4dc9fc'/>
+      <elf-symbol name='virtio_transport_recv_pkt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2b9d52f'/>
+      <elf-symbol name='virtio_transport_release' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9c649aa'/>
+      <elf-symbol name='virtio_transport_shutdown' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd41cfc8e'/>
       <elf-symbol name='virtio_transport_stream_allow' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a81e69'/>
-      <elf-symbol name='virtio_transport_stream_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa2219aad'/>
-      <elf-symbol name='virtio_transport_stream_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a666a54'/>
-      <elf-symbol name='virtio_transport_stream_has_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3807f6c0'/>
-      <elf-symbol name='virtio_transport_stream_has_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9f6321c0'/>
-      <elf-symbol name='virtio_transport_stream_is_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x77863f09'/>
-      <elf-symbol name='virtio_transport_stream_rcvhiwat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2df8a2af'/>
-      <elf-symbol name='virtqueue_add_inbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x35643838'/>
-      <elf-symbol name='virtqueue_add_inbuf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5cc783ba'/>
-      <elf-symbol name='virtqueue_add_outbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18349308'/>
-      <elf-symbol name='virtqueue_add_sgs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91395eae'/>
-      <elf-symbol name='virtqueue_detach_unused_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7beeeb05'/>
-      <elf-symbol name='virtqueue_disable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f5a0904'/>
-      <elf-symbol name='virtqueue_enable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa36664d9'/>
-      <elf-symbol name='virtqueue_enable_cb_delayed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c03f01'/>
-      <elf-symbol name='virtqueue_enable_cb_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x526e3aeb'/>
-      <elf-symbol name='virtqueue_get_avail_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90271e91'/>
-      <elf-symbol name='virtqueue_get_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb34b2fde'/>
-      <elf-symbol name='virtqueue_get_buf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb538faef'/>
-      <elf-symbol name='virtqueue_get_desc_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5b4fcf1'/>
-      <elf-symbol name='virtqueue_get_used_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1ada0857'/>
-      <elf-symbol name='virtqueue_get_vring_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50006ead'/>
-      <elf-symbol name='virtqueue_is_broken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ac0b75f'/>
-      <elf-symbol name='virtqueue_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc171619d'/>
-      <elf-symbol name='virtqueue_kick_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x647c058a'/>
-      <elf-symbol name='virtqueue_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5457d2dc'/>
-      <elf-symbol name='virtqueue_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8b7ec98'/>
-      <elf-symbol name='vlan_uses_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x81eeb993'/>
-      <elf-symbol name='vlan_vid_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7fbb6189'/>
-      <elf-symbol name='vlan_vid_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98b9357f'/>
-      <elf-symbol name='vlan_vids_add_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbee5064'/>
-      <elf-symbol name='vlan_vids_del_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9be428c'/>
+      <elf-symbol name='virtio_transport_stream_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac02f3bd'/>
+      <elf-symbol name='virtio_transport_stream_enqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c001119'/>
+      <elf-symbol name='virtio_transport_stream_has_data' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ce6c1a0'/>
+      <elf-symbol name='virtio_transport_stream_has_space' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a417469'/>
+      <elf-symbol name='virtio_transport_stream_is_active' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xabfc8935'/>
+      <elf-symbol name='virtio_transport_stream_rcvhiwat' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe4b8f8db'/>
+      <elf-symbol name='virtqueue_add_inbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6da7b7dd'/>
+      <elf-symbol name='virtqueue_add_inbuf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10ef4892'/>
+      <elf-symbol name='virtqueue_add_outbuf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d3ad9c6'/>
+      <elf-symbol name='virtqueue_add_sgs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53f943aa'/>
+      <elf-symbol name='virtqueue_detach_unused_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc09a7f1a'/>
+      <elf-symbol name='virtqueue_disable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfb69ebf4'/>
+      <elf-symbol name='virtqueue_enable_cb' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8262a352'/>
+      <elf-symbol name='virtqueue_enable_cb_delayed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd07d2a6b'/>
+      <elf-symbol name='virtqueue_enable_cb_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x62e9d86a'/>
+      <elf-symbol name='virtqueue_get_avail_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x947e3f46'/>
+      <elf-symbol name='virtqueue_get_buf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x419f2dc4'/>
+      <elf-symbol name='virtqueue_get_buf_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x510de735'/>
+      <elf-symbol name='virtqueue_get_desc_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x960995fa'/>
+      <elf-symbol name='virtqueue_get_used_addr' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6a9c0caa'/>
+      <elf-symbol name='virtqueue_get_vring_size' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe06943cd'/>
+      <elf-symbol name='virtqueue_is_broken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f366f79'/>
+      <elf-symbol name='virtqueue_kick' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcf65038a'/>
+      <elf-symbol name='virtqueue_kick_prepare' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd583a39e'/>
+      <elf-symbol name='virtqueue_notify' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fe438b'/>
+      <elf-symbol name='virtqueue_poll' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xddff0ec8'/>
+      <elf-symbol name='vlan_uses_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x554f9ff8'/>
+      <elf-symbol name='vlan_vid_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x754bc737'/>
+      <elf-symbol name='vlan_vid_del' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd84d99fd'/>
+      <elf-symbol name='vlan_vids_add_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xccb43225'/>
+      <elf-symbol name='vlan_vids_del_by_dev' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd1fa0fff'/>
       <elf-symbol name='vm_get_page_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2c91e17c'/>
-      <elf-symbol name='vm_iomap_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2e3b3af'/>
-      <elf-symbol name='vm_map_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c9232b7'/>
-      <elf-symbol name='vm_map_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x24b8b753'/>
-      <elf-symbol name='vm_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa9f12bcd'/>
+      <elf-symbol name='vm_iomap_memory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87c18a84'/>
+      <elf-symbol name='vm_map_pages' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3a934547'/>
+      <elf-symbol name='vm_map_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xda911df9'/>
+      <elf-symbol name='vm_mmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86a82606'/>
       <elf-symbol name='vm_unmap_ram' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fd2571'/>
       <elf-symbol name='vmalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6ee688f'/>
-      <elf-symbol name='vmalloc_to_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3ea1ffc1'/>
+      <elf-symbol name='vmalloc_to_page' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2e87353f'/>
       <elf-symbol name='vmalloc_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5635a60a'/>
-      <elf-symbol name='vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47da008a'/>
+      <elf-symbol name='vmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe0467061'/>
       <elf-symbol name='vmemdup_user' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x90576ec4'/>
-      <elf-symbol name='vmf_insert_mixed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcdb5dd91'/>
-      <elf-symbol name='vmf_insert_pfn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ef2e98e'/>
-      <elf-symbol name='vmf_insert_pfn_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x92343325'/>
+      <elf-symbol name='vmf_insert_mixed' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc87ec310'/>
+      <elf-symbol name='vmf_insert_pfn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1d7faee3'/>
+      <elf-symbol name='vmf_insert_pfn_prot' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x46a16238'/>
       <elf-symbol name='vprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x715a5ed0'/>
-      <elf-symbol name='vring_create_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x592dafbb'/>
-      <elf-symbol name='vring_del_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb72b6190'/>
+      <elf-symbol name='vring_create_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xebead721'/>
+      <elf-symbol name='vring_del_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7260b3'/>
       <elf-symbol name='vring_interrupt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff05fa13'/>
-      <elf-symbol name='vring_new_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9ee8d9b9'/>
-      <elf-symbol name='vring_transport_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x36f38c31'/>
+      <elf-symbol name='vring_new_virtqueue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe49b6b00'/>
+      <elf-symbol name='vring_transport_features' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x108845fd'/>
       <elf-symbol name='vscnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa0c318b'/>
       <elf-symbol name='vsnprintf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x148653'/>
-      <elf-symbol name='vsock_core_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43fd0596'/>
-      <elf-symbol name='vsock_core_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b95de27'/>
-      <elf-symbol name='vsock_for_each_connected_socket' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4940d84'/>
+      <elf-symbol name='vsock_core_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2aebe48'/>
+      <elf-symbol name='vsock_core_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x98195c82'/>
+      <elf-symbol name='vsock_for_each_connected_socket' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5ad0bf84'/>
       <elf-symbol name='vsscanf' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x50d035c2'/>
       <elf-symbol name='vunmap' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x94961283'/>
       <elf-symbol name='vzalloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x40a9b349'/>
@@ -3615,30 +3615,30 @@
       <elf-symbol name='wait_for_completion_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a3ad70e'/>
       <elf-symbol name='wait_woken' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb308c97d'/>
       <elf-symbol name='wake_up_bit' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0fbac79'/>
-      <elf-symbol name='wake_up_process' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb866fceb'/>
-      <elf-symbol name='wakeup_source_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8bb4089'/>
-      <elf-symbol name='wakeup_source_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x752ec0b'/>
-      <elf-symbol name='wakeup_source_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xaa39e253'/>
-      <elf-symbol name='wakeup_source_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xca9ac532'/>
-      <elf-symbol name='wakeup_source_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdde5d958'/>
-      <elf-symbol name='wakeup_source_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x726881a7'/>
-      <elf-symbol name='watchdog_init_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc0fea008'/>
-      <elf-symbol name='watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x74d8914a'/>
-      <elf-symbol name='watchdog_set_restart_priority' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x63132125'/>
-      <elf-symbol name='watchdog_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x91bf1765'/>
-      <elf-symbol name='wiphy_apply_custom_regulatory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdba9b83a'/>
-      <elf-symbol name='wiphy_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x410e75c2'/>
-      <elf-symbol name='wiphy_new_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1b92a32d'/>
-      <elf-symbol name='wiphy_read_of_freq_limits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x398dc630'/>
-      <elf-symbol name='wiphy_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd322428e'/>
-      <elf-symbol name='wiphy_rfkill_set_hw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4960efae'/>
-      <elf-symbol name='wiphy_to_ieee80211_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xdb1097c5'/>
-      <elf-symbol name='wiphy_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf497a179'/>
-      <elf-symbol name='wireless_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xce3d2dbc'/>
+      <elf-symbol name='wake_up_process' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b16f413'/>
+      <elf-symbol name='wakeup_source_add' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcde408d'/>
+      <elf-symbol name='wakeup_source_create' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4a0dd052'/>
+      <elf-symbol name='wakeup_source_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x87104041'/>
+      <elf-symbol name='wakeup_source_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1fbe307a'/>
+      <elf-symbol name='wakeup_source_remove' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4334e582'/>
+      <elf-symbol name='wakeup_source_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9e39c3c'/>
+      <elf-symbol name='watchdog_init_timeout' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x84076a2f'/>
+      <elf-symbol name='watchdog_register_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f849386'/>
+      <elf-symbol name='watchdog_set_restart_priority' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9c5887be'/>
+      <elf-symbol name='watchdog_unregister_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfda51ac'/>
+      <elf-symbol name='wiphy_apply_custom_regulatory' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x784981a9'/>
+      <elf-symbol name='wiphy_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe2358f4'/>
+      <elf-symbol name='wiphy_new_nm' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5830b6a1'/>
+      <elf-symbol name='wiphy_read_of_freq_limits' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe8198bde'/>
+      <elf-symbol name='wiphy_register' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c4dea81'/>
+      <elf-symbol name='wiphy_rfkill_set_hw_state' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53c14632'/>
+      <elf-symbol name='wiphy_to_ieee80211_hw' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe5762031'/>
+      <elf-symbol name='wiphy_unregister' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf8e099be'/>
+      <elf-symbol name='wireless_send_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3fc4375f'/>
       <elf-symbol name='woken_wake_function' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0654aba'/>
       <elf-symbol name='work_busy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86ab091d'/>
-      <elf-symbol name='ww_mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7c7ae3a2'/>
-      <elf-symbol name='ww_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6b92970'/>
+      <elf-symbol name='ww_mutex_lock_interruptible' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x79f44cbd'/>
+      <elf-symbol name='ww_mutex_unlock' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd0c33e75'/>
       <elf-symbol name='xa_clear_mark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x131a6146'/>
       <elf-symbol name='xa_destroy' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd9491c14'/>
       <elf-symbol name='xa_erase' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x745a981'/>
@@ -3648,32 +3648,32 @@
       <elf-symbol name='xa_load' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa85a3e6d'/>
       <elf-symbol name='xa_set_mark' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9da0ba4'/>
       <elf-symbol name='xa_store' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5b3e282f'/>
-      <elf-symbol name='xdp_convert_zc_to_xdp_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7cbd8b2c'/>
+      <elf-symbol name='xdp_convert_zc_to_xdp_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbca015ea'/>
       <elf-symbol name='xdp_do_flush' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb9681621'/>
-      <elf-symbol name='xdp_do_redirect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xef86429e'/>
-      <elf-symbol name='xdp_return_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7be5e67'/>
-      <elf-symbol name='xdp_return_frame_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x880714a8'/>
-      <elf-symbol name='xdp_rxq_info_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfc82a20'/>
-      <elf-symbol name='xdp_rxq_info_reg_mem_model' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd6854de9'/>
-      <elf-symbol name='xdp_rxq_info_unreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5f604761'/>
+      <elf-symbol name='xdp_do_redirect' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2d889217'/>
+      <elf-symbol name='xdp_return_frame' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3893b0f5'/>
+      <elf-symbol name='xdp_return_frame_rx_napi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x43194069'/>
+      <elf-symbol name='xdp_rxq_info_reg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14b385da'/>
+      <elf-symbol name='xdp_rxq_info_reg_mem_model' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1a1ec31'/>
+      <elf-symbol name='xdp_rxq_info_unreg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x262e1c69'/>
       <elf-symbol name='xdp_warn' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbb7195a5'/>
-      <elf-symbol name='xfrm_state_lookup_byspi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x45642e8f'/>
-      <elf-symbol name='xfrm_stateonly_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8480e406'/>
-      <elf-symbol name='xhci_address_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x417d7452'/>
-      <elf-symbol name='xhci_bus_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf7a5a481'/>
-      <elf-symbol name='xhci_bus_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x10df6c9'/>
-      <elf-symbol name='xhci_gen_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb902237b'/>
-      <elf-symbol name='xhci_get_ep_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb44c7c7a'/>
-      <elf-symbol name='xhci_get_slot_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x53320b23'/>
-      <elf-symbol name='xhci_handle_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf19f2ef7'/>
-      <elf-symbol name='xhci_init_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bcf04cf'/>
-      <elf-symbol name='xhci_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76ffe70b'/>
-      <elf-symbol name='xhci_ring_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc5ef9ae0'/>
-      <elf-symbol name='xhci_ring_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6612d690'/>
-      <elf-symbol name='xhci_run' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x14a9bfb0'/>
-      <elf-symbol name='xhci_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xff6606dd'/>
-      <elf-symbol name='xhci_update_erst_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f52daee'/>
-      <elf-symbol name='xhci_vendor_get_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8c760e5f'/>
+      <elf-symbol name='xfrm_state_lookup_byspi' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd586bedb'/>
+      <elf-symbol name='xfrm_stateonly_find' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf202a9e9'/>
+      <elf-symbol name='xhci_address_device' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x72fddac2'/>
+      <elf-symbol name='xhci_bus_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5749512a'/>
+      <elf-symbol name='xhci_bus_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x18231c37'/>
+      <elf-symbol name='xhci_gen_setup' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe6a422c5'/>
+      <elf-symbol name='xhci_get_ep_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb15d114f'/>
+      <elf-symbol name='xhci_get_slot_ctx' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd8a71456'/>
+      <elf-symbol name='xhci_handle_event' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xead664fc'/>
+      <elf-symbol name='xhci_init_driver' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb6f0ac5b'/>
+      <elf-symbol name='xhci_resume' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x318fed7a'/>
+      <elf-symbol name='xhci_ring_alloc' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd7bca4e'/>
+      <elf-symbol name='xhci_ring_free' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3f3815ee'/>
+      <elf-symbol name='xhci_run' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x21a3978b'/>
+      <elf-symbol name='xhci_suspend' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x384f42ed'/>
+      <elf-symbol name='xhci_update_erst_dequeue' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x85ca073e'/>
+      <elf-symbol name='xhci_vendor_get_ops' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5bc6d97e'/>
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@@ -3793,98 +3793,98 @@
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-      <elf-symbol name='amba_bustype' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x55933f58'/>
+      <elf-symbol name='amba_bustype' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xefd95b38'/>
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-      <elf-symbol name='clk_fixed_rate_ops' size='216' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x47fbebbe'/>
+      <elf-symbol name='clk_fixed_factor_ops' size='216' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb94d81d6'/>
+      <elf-symbol name='clk_fixed_rate_ops' size='216' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5299a868'/>
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+      <elf-symbol name='contig_page_data' size='6976' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7007215'/>
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-      <elf-symbol name='cpu_subsys' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfd9ddfa4'/>
+      <elf-symbol name='cpu_subsys' size='208' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd75caec5'/>
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-      <elf-symbol name='cpufreq_generic_attr' size='16' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa489340b'/>
+      <elf-symbol name='cpufreq_freq_attr_scaling_available_freqs' size='32' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x577342bd'/>
+      <elf-symbol name='cpufreq_freq_attr_scaling_boost_freqs' size='32' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xcca7824b'/>
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@@ -6931,7 +6931,7 @@
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@@ -7459,7 +7459,7 @@
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@@ -9346,10 +9346,13 @@
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@@ -9695,7 +9698,7 @@
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@@ -21497,8 +21504,37 @@
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+        </data-member>
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+          <var-decl name='next_addr' type-id='7359adad' visibility='default' filepath='include/linux/mmzone.h' line='437' column='1'/>
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+          <var-decl name='bitmap' type-id='f066dd3c' visibility='default' filepath='include/linux/mmzone.h' line='439' column='1'/>
+        </data-member>
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+        </data-member>
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+        </data-member>
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+          <var-decl name='can_swap' type-id='b50a4934' visibility='default' filepath='include/linux/mmzone.h' line='446' column='1'/>
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+          <var-decl name='full_scan' type-id='b50a4934' visibility='default' filepath='include/linux/mmzone.h' line='447' column='1'/>
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@@ -25013,7 +25049,7 @@
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@@ -26589,7 +26625,7 @@
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+          <var-decl name='u' type-id='ac5ab605' visibility='default' filepath='include/linux/splice.h' line='40' column='1'/>
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@@ -27214,7 +27250,7 @@
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@@ -27820,7 +27856,7 @@
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-          <var-decl name='' type-id='ac5ab632' visibility='default' filepath='include/linux/restart_block.h' line='27' column='1'/>
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+      <enum-decl name='bkops_status' filepath='drivers/scsi/ufs/ufs.h' line='389' column='1' id='462d2624'>
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@@ -28519,7 +28555,7 @@
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-          <var-decl name='' type-id='ac5ab62c' visibility='default' filepath='include/net/ip.h' line='126' column='1'/>
+          <var-decl name='' type-id='ac5ab62b' visibility='default' filepath='include/net/ip.h' line='126' column='1'/>
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@@ -32453,7 +32489,7 @@
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-          <var-decl name='earliest_dl' type-id='e7f43ff3' visibility='default' filepath='kernel/sched/sched.h' line='692' column='1'/>
+          <var-decl name='earliest_dl' type-id='e7f43ff4' visibility='default' filepath='kernel/sched/sched.h' line='692' column='1'/>
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@@ -32700,96 +32736,99 @@
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-          <var-decl name='node_zones' type-id='83aedf28' visibility='default' filepath='include/linux/mmzone.h' line='735' column='1'/>
+          <var-decl name='node_zones' type-id='83aedf28' visibility='default' filepath='include/linux/mmzone.h' line='942' column='1'/>
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+          <var-decl name='nr_zones' type-id='95e97e5e' visibility='default' filepath='include/linux/mmzone.h' line='951' column='1'/>
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-          <var-decl name='node_present_pages' type-id='7359adad' visibility='default' filepath='include/linux/mmzone.h' line='767' column='1'/>
+          <var-decl name='node_present_pages' type-id='7359adad' visibility='default' filepath='include/linux/mmzone.h' line='974' column='1'/>
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-          <var-decl name='node_id' type-id='95e97e5e' visibility='default' filepath='include/linux/mmzone.h' line='770' column='1'/>
+          <var-decl name='node_id' type-id='95e97e5e' visibility='default' filepath='include/linux/mmzone.h' line='977' column='1'/>
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@@ -48825,6 +48892,11 @@
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+          <var-decl name='_sigpoll' type-id='e7f43fe8' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='101' column='1'/>
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+          <var-decl name='_sigsys' type-id='e7f43fe9' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='108' column='1'/>
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@@ -66672,7 +66754,7 @@
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+          <var-decl name='flush' type-id='e7f43fef' visibility='default' filepath='include/linux/blkdev.h' line='197' column='1'/>
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@@ -67453,12 +67527,12 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/media-entity.h' line='314' column='1' id='ac5ab5d1'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/media-entity.h' line='314' column='1' id='ac5ab5d0'>
         <data-member access='public'>
           <var-decl name='dev' type-id='e7f43f9d' visibility='default' filepath='include/media/media-entity.h' line='318' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-async.h' line='81' column='1' id='ac5ab5d2'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-async.h' line='81' column='1' id='ac5ab5d1'>
         <data-member access='public'>
           <var-decl name='fwnode' type-id='4a935625' visibility='default' filepath='include/media/v4l2-async.h' line='82' column='1'/>
         </data-member>
@@ -67518,7 +67592,7 @@
           <var-decl name='custom' type-id='e7f43f9f' visibility='default' filepath='include/media/v4l2-async.h' line='92' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='16' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='41' column='1' id='ac5ab5d3'>
+      <union-decl name='__anonymous_union__' size-in-bits='16' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='41' column='1' id='ac5ab5d2'>
         <data-member access='public'>
           <var-decl name='ycbcr_enc' type-id='d315442e' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='43' column='1'/>
         </data-member>
@@ -67526,7 +67600,7 @@
           <var-decl name='hsv_enc' type-id='d315442e' visibility='default' filepath='include/uapi/linux/v4l2-mediabus.h' line='45' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='508' column='1' id='ac5ab5d4'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='508' column='1' id='ac5ab5d3'>
         <data-member access='public'>
           <var-decl name='ycbcr_enc' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='510' column='1'/>
         </data-member>
@@ -67534,7 +67608,7 @@
           <var-decl name='hsv_enc' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='512' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='833' column='1' id='ac5ab5d5'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='833' column='1' id='ac5ab5d4'>
         <data-member access='public'>
           <var-decl name='discrete' type-id='10186cf6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='834' column='1'/>
         </data-member>
@@ -67542,7 +67616,7 @@
           <var-decl name='stepwise' type-id='5a62dd2b' visibility='default' filepath='include/uapi/linux/videodev2.h' line='835' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='863' column='1' id='ac5ab5d6'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='863' column='1' id='ac5ab5d5'>
         <data-member access='public'>
           <var-decl name='discrete' type-id='5f37256e' visibility='default' filepath='include/uapi/linux/videodev2.h' line='864' column='1'/>
         </data-member>
@@ -67550,7 +67624,7 @@
           <var-decl name='stepwise' type-id='99cd0646' visibility='default' filepath='include/uapi/linux/videodev2.h' line='865' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='992' column='1' id='ac5ab5d7'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='992' column='1' id='ac5ab5d6'>
         <data-member access='public'>
           <var-decl name='mem_offset' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='993' column='1'/>
         </data-member>
@@ -67561,7 +67635,7 @@
           <var-decl name='fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='995' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1049' column='1' id='ac5ab5d8'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1049' column='1' id='ac5ab5d7'>
         <data-member access='public'>
           <var-decl name='offset' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1050' column='1'/>
         </data-member>
@@ -67575,7 +67649,7 @@
           <var-decl name='fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1053' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1057' column='1' id='ac5ab5d9'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1057' column='1' id='ac5ab5d8'>
         <data-member access='public'>
           <var-decl name='request_fd' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1058' column='1'/>
         </data-member>
@@ -67583,7 +67657,7 @@
           <var-decl name='reserved' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1059' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1568' column='1' id='ac5ab5da'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1568' column='1' id='ac5ab5d9'>
         <data-member access='public'>
           <var-decl name='bt' type-id='ecc13ba0' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1569' column='1'/>
         </data-member>
@@ -67591,7 +67665,7 @@
           <var-decl name='reserved' type-id='734a963c' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1570' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1634' column='1' id='ac5ab5db'>
+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1634' column='1' id='ac5ab5da'>
         <data-member access='public'>
           <var-decl name='bt' type-id='e5bfe593' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1635' column='1'/>
         </data-member>
@@ -67599,7 +67673,7 @@
           <var-decl name='raw_data' type-id='734a963c' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1636' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1729' column='1' id='ac5ab5dc'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1729' column='1' id='ac5ab5db'>
         <data-member access='public'>
           <var-decl name='value' type-id='3158a266' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1730' column='1'/>
         </data-member>
@@ -67625,12 +67699,12 @@
           <var-decl name='ptr' type-id='eaa32e2f' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1737' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1742' column='1' id='ac5ab5dd'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1742' column='1' id='ac5ab5dc'>
         <data-member access='public'>
           <var-decl name='which' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1746' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1829' column='1' id='ac5ab5de'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1829' column='1' id='ac5ab5dd'>
         <data-member access='public'>
           <var-decl name='name' type-id='7e67d89d' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1830' column='1'/>
         </data-member>
@@ -67638,12 +67712,12 @@
           <var-decl name='value' type-id='49659421' visibility='default' filepath='include/uapi/linux/videodev2.h' line='1831' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2036' column='1' id='ac5ab5df'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2036' column='1' id='ac5ab5de'>
         <data-member access='public'>
           <var-decl name='raw' type-id='e7f43fa1' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2039' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2072' column='1' id='ac5ab5e0'>
+      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2072' column='1' id='ac5ab5df'>
         <data-member access='public'>
           <var-decl name='stop' type-id='e7f43fa2' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2075' column='1'/>
         </data-member>
@@ -67654,7 +67728,7 @@
           <var-decl name='raw' type-id='e7f43fa4' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2089' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='8' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2261' column='1' id='ac5ab5e1'>
+      <union-decl name='__anonymous_union__' size-in-bits='8' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2261' column='1' id='ac5ab5e0'>
         <data-member access='public'>
           <var-decl name='ycbcr_enc' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2262' column='1'/>
         </data-member>
@@ -67662,7 +67736,7 @@
           <var-decl name='hsv_enc' type-id='8f048e17' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2263' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2303' column='1' id='ac5ab5e2'>
+      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2303' column='1' id='ac5ab5e1'>
         <data-member access='public'>
           <var-decl name='pix' type-id='e8f6102b' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2304' column='1'/>
         </data-member>
@@ -67688,7 +67762,7 @@
           <var-decl name='raw_data' type-id='0530f1a6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2311' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2319' column='1' id='ac5ab5e3'>
+      <union-decl name='__anonymous_union__' size-in-bits='1600' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2319' column='1' id='ac5ab5e2'>
         <data-member access='public'>
           <var-decl name='capture' type-id='f88a5c22' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2320' column='1'/>
         </data-member>
@@ -67699,7 +67773,7 @@
           <var-decl name='raw_data' type-id='0530f1a6' visibility='default' filepath='include/uapi/linux/videodev2.h' line='2322' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='283' column='1' id='ac5ab5e4'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='283' column='1' id='ac5ab5e3'>
         <data-member access='public'>
           <var-decl name='step' type-id='91ce1af9' visibility='default' filepath='include/media/v4l2-ctrls.h' line='284' column='1'/>
         </data-member>
@@ -67707,7 +67781,7 @@
           <var-decl name='menu_skip_mask' type-id='91ce1af9' visibility='default' filepath='include/media/v4l2-ctrls.h' line='285' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='287' column='1' id='ac5ab5e5'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/v4l2-ctrls.h' line='287' column='1' id='ac5ab5e4'>
         <data-member access='public'>
           <var-decl name='qmenu' type-id='13956559' visibility='default' filepath='include/media/v4l2-ctrls.h' line='288' column='1'/>
         </data-member>
@@ -67715,7 +67789,7 @@
           <var-decl name='qmenu_int' type-id='43ae54cf' visibility='default' filepath='include/media/v4l2-ctrls.h' line='289' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/videobuf2-core.h' line='181' column='1' id='ac5ab5e6'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/media/videobuf2-core.h' line='181' column='1' id='ac5ab5e5'>
         <data-member access='public'>
           <var-decl name='offset' type-id='f0981eeb' visibility='default' filepath='include/media/videobuf2-core.h' line='182' column='1'/>
         </data-member>
@@ -67726,7 +67800,7 @@
           <var-decl name='fd' type-id='95e97e5e' visibility='default' filepath='include/media/videobuf2-core.h' line='184' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='791' column='1' id='ac5ab5e7'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/cgroup-defs.h' line='791' column='1' id='ac5ab5e6'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f43fa6' visibility='default' filepath='include/linux/cgroup-defs.h' line='793' column='1'/>
         </data-member>
@@ -67734,7 +67808,7 @@
           <var-decl name='val' type-id='91ce1af9' visibility='default' filepath='include/linux/cgroup-defs.h' line='811' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='359' column='1' id='ac5ab5e8'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs.h' line='359' column='1' id='ac5ab5e7'>
         <data-member access='public'>
           <var-decl name='buf' type-id='26a90f95' visibility='default' filepath='include/linux/fs.h' line='360' column='1'/>
         </data-member>
@@ -67742,7 +67816,7 @@
           <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/fs.h' line='361' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/socket.h' line='60' column='1' id='ac5ab5e9'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/socket.h' line='60' column='1' id='ac5ab5e8'>
         <data-member access='public'>
           <var-decl name='msg_control' type-id='eaa32e2f' visibility='default' filepath='include/linux/socket.h' line='61' column='1'/>
         </data-member>
@@ -67750,7 +67824,7 @@
           <var-decl name='msg_control_user' type-id='eaa32e2f' visibility='default' filepath='include/linux/socket.h' line='62' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/sockptr.h' line='15' column='1' id='ac5ab5ea'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/sockptr.h' line='15' column='1' id='ac5ab5e9'>
         <data-member access='public'>
           <var-decl name='kernel' type-id='eaa32e2f' visibility='default' filepath='include/linux/sockptr.h' line='16' column='1'/>
         </data-member>
@@ -67758,7 +67832,7 @@
           <var-decl name='user' type-id='eaa32e2f' visibility='default' filepath='include/linux/sockptr.h' line='17' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='704' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='175' column='1' id='ac5ab5eb'>
+      <union-decl name='__anonymous_union__' size-in-bits='704' is-anonymous='yes' visibility='default' filepath='include/net/flow.h' line='175' column='1' id='ac5ab5ea'>
         <data-member access='public'>
           <var-decl name='__fl_common' type-id='184ee240' visibility='default' filepath='include/net/flow.h' line='176' column='1'/>
         </data-member>
@@ -67772,7 +67846,7 @@
           <var-decl name='dn' type-id='83eba552' visibility='default' filepath='include/net/flow.h' line='179' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='168' column='1' id='ac5ab5ec'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='168' column='1' id='ac5ab5eb'>
         <data-member access='public'>
           <var-decl name='skc_addrpair' type-id='d17a6eed' visibility='default' filepath='include/net/sock.h' line='169' column='1'/>
         </data-member>
@@ -67780,7 +67854,7 @@
           <var-decl name='' type-id='e7f43fab' visibility='default' filepath='include/net/sock.h' line='170' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='175' column='1' id='ac5ab5ed'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='175' column='1' id='ac5ab5ec'>
         <data-member access='public'>
           <var-decl name='skc_hash' type-id='f0981eeb' visibility='default' filepath='include/net/sock.h' line='176' column='1'/>
         </data-member>
@@ -67788,7 +67862,7 @@
           <var-decl name='skc_u16hashes' type-id='810b4a17' visibility='default' filepath='include/net/sock.h' line='177' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='180' column='1' id='ac5ab5ee'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='180' column='1' id='ac5ab5ed'>
         <data-member access='public'>
           <var-decl name='skc_portpair' type-id='e7c2a649' visibility='default' filepath='include/net/sock.h' line='181' column='1'/>
         </data-member>
@@ -67796,7 +67870,7 @@
           <var-decl name='' type-id='e7f43fac' visibility='default' filepath='include/net/sock.h' line='182' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='195' column='1' id='ac5ab5ef'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='195' column='1' id='ac5ab5ee'>
         <data-member access='public'>
           <var-decl name='skc_bind_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='196' column='1'/>
         </data-member>
@@ -67804,7 +67878,7 @@
           <var-decl name='skc_portaddr_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='197' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='214' column='1' id='ac5ab5f0'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='214' column='1' id='ac5ab5ef'>
         <data-member access='public'>
           <var-decl name='skc_flags' type-id='7359adad' visibility='default' filepath='include/net/sock.h' line='215' column='1'/>
         </data-member>
@@ -67815,7 +67889,7 @@
           <var-decl name='skc_tw_dr' type-id='b7ab21fc' visibility='default' filepath='include/net/sock.h' line='217' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='226' column='1' id='ac5ab5f1'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='226' column='1' id='ac5ab5f0'>
         <data-member access='public'>
           <var-decl name='skc_node' type-id='03a4a074' visibility='default' filepath='include/net/sock.h' line='227' column='1'/>
         </data-member>
@@ -67823,7 +67897,7 @@
           <var-decl name='skc_nulls_node' type-id='5bd248e7' visibility='default' filepath='include/net/sock.h' line='228' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='234' column='1' id='ac5ab5f2'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='234' column='1' id='ac5ab5f1'>
         <data-member access='public'>
           <var-decl name='skc_incoming_cpu' type-id='95e97e5e' visibility='default' filepath='include/net/sock.h' line='235' column='1'/>
         </data-member>
@@ -67834,7 +67908,7 @@
           <var-decl name='skc_tw_rcv_nxt' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='237' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='243' column='1' id='ac5ab5f3'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='243' column='1' id='ac5ab5f2'>
         <data-member access='public'>
           <var-decl name='skc_rxhash' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='244' column='1'/>
         </data-member>
@@ -67845,7 +67919,7 @@
           <var-decl name='skc_tw_snd_nxt' type-id='19c2251e' visibility='default' filepath='include/net/sock.h' line='246' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='420' column='1' id='ac5ab5f4'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='420' column='1' id='ac5ab5f3'>
         <data-member access='public'>
           <var-decl name='sk_wq' type-id='99f34ac1' visibility='default' filepath='include/net/sock.h' line='421' column='1'/>
         </data-member>
@@ -67853,7 +67927,7 @@
           <var-decl name='sk_wq_raw' type-id='99f34ac1' visibility='default' filepath='include/net/sock.h' line='423' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='438' column='1' id='ac5ab5f5'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='438' column='1' id='ac5ab5f4'>
         <data-member access='public'>
           <var-decl name='sk_send_head' type-id='0fbf3cfd' visibility='default' filepath='include/net/sock.h' line='439' column='1'/>
         </data-member>
@@ -67861,7 +67935,7 @@
           <var-decl name='tcp_rtx_queue' type-id='dec44472' visibility='default' filepath='include/net/sock.h' line='440' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='1235' column='1' id='ac5ab5f6'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/sock.h' line='1235' column='1' id='ac5ab5f5'>
         <data-member access='public'>
           <var-decl name='hashinfo' type-id='d7a1e3c2' visibility='default' filepath='include/net/sock.h' line='1236' column='1'/>
         </data-member>
@@ -67875,7 +67949,7 @@
           <var-decl name='smc_hash' type-id='aa8162a3' visibility='default' filepath='include/net/sock.h' line='1239' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='151' column='1' id='ac5ab5f7'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/xfrm.h' line='151' column='1' id='ac5ab5f6'>
         <data-member access='public'>
           <var-decl name='gclist' type-id='03a4a074' visibility='default' filepath='include/net/xfrm.h' line='152' column='1'/>
         </data-member>
@@ -67883,7 +67957,7 @@
           <var-decl name='bydst' type-id='03a4a074' visibility='default' filepath='include/net/xfrm.h' line='153' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='108' column='1' id='ac5ab5f8'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='108' column='1' id='ac5ab5f7'>
         <data-member access='public'>
           <var-decl name='d_lru' type-id='72f469ec' visibility='default' filepath='include/linux/dcache.h' line='109' column='1'/>
         </data-member>
@@ -67891,7 +67965,7 @@
           <var-decl name='d_wait' type-id='03d48e96' visibility='default' filepath='include/linux/dcache.h' line='110' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='117' column='1' id='ac5ab5f9'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='117' column='1' id='ac5ab5f8'>
         <data-member access='public'>
           <var-decl name='d_alias' type-id='03a4a074' visibility='default' filepath='include/linux/dcache.h' line='118' column='1'/>
         </data-member>
@@ -67902,7 +67976,7 @@
           <var-decl name='d_rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/dcache.h' line='120' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/pinctrl/machine.h' line='72' column='1' id='ac5ab5fa'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/pinctrl/machine.h' line='72' column='1' id='ac5ab5f9'>
         <data-member access='public'>
           <var-decl name='mux' type-id='ad4dd73d' visibility='default' filepath='include/linux/pinctrl/machine.h' line='73' column='1'/>
         </data-member>
@@ -67910,18 +67984,18 @@
           <var-decl name='configs' type-id='687781fc' visibility='default' filepath='include/linux/pinctrl/machine.h' line='74' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='533' column='1' id='ac5ab5fb'>
+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='539' column='1' id='ac5ab5fa'>
         <data-member access='public'>
-          <var-decl name='sr' type-id='18119fa5' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='534' column='1'/>
+          <var-decl name='sr' type-id='18119fa5' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='540' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='hr' type-id='a222ac53' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='535' column='1'/>
+          <var-decl name='hr' type-id='a222ac53' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='541' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='qr' type-id='5fc79e81' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='536' column='1'/>
+          <var-decl name='qr' type-id='5fc79e81' visibility='default' filepath='drivers/scsi/ufs/ufs.h' line='542' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1' id='ac5ab5fc'>
+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1' id='ac5ab5fb'>
         <data-member access='public'>
           <var-decl name='sc' type-id='498490b9' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='76' column='1'/>
         </data-member>
@@ -67932,7 +68006,7 @@
           <var-decl name='uc' type-id='5fc79e81' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='78' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='124' column='1' id='ac5ab5fd'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/spi/spi-mem.h' line='124' column='1' id='ac5ab5fc'>
         <data-member access='public'>
           <var-decl name='in' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='125' column='1'/>
         </data-member>
@@ -67940,7 +68014,7 @@
           <var-decl name='out' type-id='eaa32e2f' visibility='default' filepath='include/linux/spi/spi-mem.h' line='126' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fe'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1' id='ac5ab5fd'>
         <data-member access='public'>
           <var-decl name='kfifo' type-id='bbbc6c1e' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
         </data-member>
@@ -67960,7 +68034,7 @@
           <var-decl name='ptr_const' type-id='eaa32e2f' visibility='default' filepath='include/linux/kfifo.h' line='83' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1' id='ac5ab5ff'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1' id='ac5ab5fe'>
         <data-member access='public'>
           <var-decl name='vendor_ops' type-id='1e9ca7e3' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
         </data-member>
@@ -67968,11 +68042,11 @@
           <var-decl name='' type-id='e7f43fb9' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='ac5ab600' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
+          <var-decl name='' type-id='ac5ab5ff' visibility='default' filepath='drivers/usb/host/xhci.h' line='1936' column='1'/>
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab600'/>
-      <union-decl name='__anonymous_union__' size-in-bits='224' is-anonymous='yes' visibility='default' filepath='include/linux/usb/pd.h' line='197' column='1' id='ac5ab601'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/linux/blk_types.h' line='250' column='1' id='ac5ab5ff'/>
+      <union-decl name='__anonymous_union__' size-in-bits='224' is-anonymous='yes' visibility='default' filepath='include/linux/usb/pd.h' line='197' column='1' id='ac5ab600'>
         <data-member access='public'>
           <var-decl name='payload' type-id='e369592a' visibility='default' filepath='include/linux/usb/pd.h' line='198' column='1'/>
         </data-member>
@@ -67980,7 +68054,7 @@
           <var-decl name='ext_msg' type-id='9d90420f' visibility='default' filepath='include/linux/usb/pd.h' line='199' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fb.h' line='480' column='1' id='ac5ab602'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fb.h' line='480' column='1' id='ac5ab601'>
         <data-member access='public'>
           <var-decl name='screen_base' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='481' column='1'/>
         </data-member>
@@ -67988,7 +68062,7 @@
           <var-decl name='screen_buffer' type-id='26a90f95' visibility='default' filepath='include/linux/fb.h' line='482' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab603'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fsnotify_backend.h' line='360' column='1' id='ac5ab602'>
         <data-member access='public'>
           <var-decl name='obj' type-id='c66f5ec5' visibility='default' filepath='include/linux/fsnotify_backend.h' line='362' column='1'/>
         </data-member>
@@ -67996,7 +68070,7 @@
           <var-decl name='destroy_next' type-id='994d9d61' visibility='default' filepath='include/linux/fsnotify_backend.h' line='364' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab604'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='42' column='1' id='ac5ab603'>
         <data-member access='public'>
           <var-decl name='proc_ops' type-id='33d70f0f' visibility='default' filepath='fs/proc/internal.h' line='43' column='1'/>
         </data-member>
@@ -68004,7 +68078,7 @@
           <var-decl name='proc_dir_ops' type-id='61758ee5' visibility='default' filepath='fs/proc/internal.h' line='44' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab605'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='fs/proc/internal.h' line='47' column='1' id='ac5ab604'>
         <data-member access='public'>
           <var-decl name='seq_ops' type-id='943a1b48' visibility='default' filepath='fs/proc/internal.h' line='48' column='1'/>
         </data-member>
@@ -68012,7 +68086,7 @@
           <var-decl name='single_show' type-id='0131eb61' visibility='default' filepath='fs/proc/internal.h' line='49' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/splice.h' line='36' column='1' id='ac5ab606'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/splice.h' line='36' column='1' id='ac5ab605'>
         <data-member access='public'>
           <var-decl name='userptr' type-id='eaa32e2f' visibility='default' filepath='include/linux/splice.h' line='37' column='1'/>
         </data-member>
@@ -68023,7 +68097,7 @@
           <var-decl name='data' type-id='eaa32e2f' visibility='default' filepath='include/linux/splice.h' line='39' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='14' column='1' id='ac5ab607'>
+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='14' column='1' id='ac5ab606'>
         <data-member access='public'>
           <var-decl name='cnts' type-id='49178f86' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='15' column='1'/>
         </data-member>
@@ -68031,7 +68105,7 @@
           <var-decl name='' type-id='e7f43fbc' visibility='default' filepath='include/asm-generic/qrwlock_types.h' line='16' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/cred.h' line='149' column='1' id='ac5ab608'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/cred.h' line='149' column='1' id='ac5ab607'>
         <data-member access='public'>
           <var-decl name='non_rcu' type-id='95e97e5e' visibility='default' filepath='include/linux/cred.h' line='150' column='1'/>
         </data-member>
@@ -68039,7 +68113,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/cred.h' line='151' column='1'/>
         </data-member>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='49' column='1' id='ac5ab609'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/dcache.h' line='49' column='1' id='ac5ab608'>
         <data-member access='public'>
           <var-decl name='' type-id='e7f43fbd' visibility='default' filepath='include/linux/dcache.h' line='50' column='1'/>
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@@ -68047,7 +68121,7 @@
           <var-decl name='hash_len' type-id='91ce1af9' visibility='default' filepath='include/linux/dcache.h' line='53' column='1'/>
         </data-member>
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           <var-decl name='uid' type-id='d80b72e6' visibility='default' filepath='include/linux/quota.h' line='70' column='1'/>
         </data-member>
@@ -68281,7 +68355,7 @@
           <var-decl name='projid' type-id='b7cdd2f8' visibility='default' filepath='include/linux/quota.h' line='72' column='1'/>
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       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/skbuff.h' line='724' column='1' id='ac5ab622'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/skbuff.h' line='724' column='1' id='ac5ab621'>
         <data-member access='public'>
           <var-decl name='dev' type-id='68a2d05b' visibility='default' filepath='include/linux/skbuff.h' line='725' column='1'/>
         </data-member>
@@ -68289,15 +68363,15 @@
           <var-decl name='dev_scratch' type-id='7359adad' visibility='default' filepath='include/linux/skbuff.h' line='730' column='1'/>
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       </union-decl>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/sysctl.h' line='132' column='1' id='ac5ab622'>
         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fd2' visibility='default' filepath='include/linux/sysctl.h' line='133' column='1'/>
+          <var-decl name='' type-id='e7f43fd3' visibility='default' filepath='include/linux/sysctl.h' line='133' column='1'/>
         </data-member>
         <data-member access='public'>
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/sysctl.h' line='139' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='38' column='1' id='ac5ab624'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='38' column='1' id='ac5ab623'>
         <data-member access='public'>
           <var-decl name='iov' type-id='2c556848' visibility='default' filepath='include/linux/uio.h' line='39' column='1'/>
         </data-member>
@@ -68311,31 +68385,31 @@
           <var-decl name='pipe' type-id='15d29710' visibility='default' filepath='include/linux/uio.h' line='42' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='44' column='1' id='ac5ab625'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/uio.h' line='44' column='1' id='ac5ab624'>
         <data-member access='public'>
           <var-decl name='nr_segs' type-id='7359adad' visibility='default' filepath='include/linux/uio.h' line='45' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fd3' visibility='default' filepath='include/linux/uio.h' line='46' column='1'/>
+          <var-decl name='' type-id='e7f43fd4' visibility='default' filepath='include/linux/uio.h' line='46' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/linux/uprobes.h' line='64' column='1' id='ac5ab625'>
         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fd4' visibility='default' filepath='include/linux/uprobes.h' line='65' column='1'/>
+          <var-decl name='' type-id='e7f43fd5' visibility='default' filepath='include/linux/uprobes.h' line='65' column='1'/>
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         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fd5' visibility='default' filepath='include/linux/uprobes.h' line='70' column='1'/>
+          <var-decl name='' type-id='e7f43fd6' visibility='default' filepath='include/linux/uprobes.h' line='70' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='512' is-anonymous='yes' visibility='default' filepath='include/linux/user_namespace.h' line='26' column='1' id='ac5ab626'>
         <data-member access='public'>
           <var-decl name='extent' type-id='df6d2206' visibility='default' filepath='include/linux/user_namespace.h' line='27' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fd6' visibility='default' filepath='include/linux/user_namespace.h' line='28' column='1'/>
+          <var-decl name='' type-id='e7f43fd7' visibility='default' filepath='include/linux/user_namespace.h' line='28' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='352' is-anonymous='yes' visibility='default' filepath='include/net/inet_frag.h' line='79' column='1' id='ac5ab628'>
+      <union-decl name='__anonymous_union__' size-in-bits='352' is-anonymous='yes' visibility='default' filepath='include/net/inet_frag.h' line='79' column='1' id='ac5ab627'>
         <data-member access='public'>
           <var-decl name='v4' type-id='c3a8bbbc' visibility='default' filepath='include/net/inet_frag.h' line='80' column='1'/>
         </data-member>
@@ -68343,7 +68417,7 @@
           <var-decl name='v6' type-id='c67e16a2' visibility='default' filepath='include/net/inet_frag.h' line='81' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/in6.h' line='34' column='1' id='ac5ab628'>
         <data-member access='public'>
           <var-decl name='u6_addr8' type-id='9396cabb' visibility='default' filepath='include/uapi/linux/in6.h' line='35' column='1'/>
         </data-member>
@@ -68354,7 +68428,7 @@
           <var-decl name='u6_addr32' type-id='30180d4b' visibility='default' filepath='include/uapi/linux/in6.h' line='38' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='384' is-anonymous='yes' visibility='default' filepath='include/linux/backing-dev-defs.h' line='159' column='1' id='ac5ab62a'>
+      <union-decl name='__anonymous_union__' size-in-bits='384' is-anonymous='yes' visibility='default' filepath='include/linux/backing-dev-defs.h' line='159' column='1' id='ac5ab629'>
         <data-member access='public'>
           <var-decl name='release_work' type-id='ef9025d0' visibility='default' filepath='include/linux/backing-dev-defs.h' line='160' column='1'/>
         </data-member>
@@ -68362,7 +68436,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/backing-dev-defs.h' line='161' column='1'/>
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       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip6_fib.h' line='178' column='1' id='ac5ab62b'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip6_fib.h' line='178' column='1' id='ac5ab62a'>
         <data-member access='public'>
           <var-decl name='fib6_siblings' type-id='72f469ec' visibility='default' filepath='include/net/ip6_fib.h' line='179' column='1'/>
         </data-member>
@@ -68370,7 +68444,7 @@
           <var-decl name='nh_list' type-id='72f469ec' visibility='default' filepath='include/net/ip6_fib.h' line='180' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/ip.h' line='126' column='1' id='ac5ab62c'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/ip.h' line='126' column='1' id='ac5ab62b'>
         <data-member access='public'>
           <var-decl name='destructor' type-id='841969d0' visibility='default' filepath='include/net/ip.h' line='127' column='1'/>
         </data-member>
@@ -68378,7 +68452,7 @@
           <var-decl name='saved_sk' type-id='f772df6d' visibility='default' filepath='include/net/ip.h' line='128' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='2153' column='1' id='ac5ab62d'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='2153' column='1' id='ac5ab62c'>
         <data-member access='public'>
           <var-decl name='lstats' type-id='a42934eb' visibility='default' filepath='include/linux/netdevice.h' line='2154' column='1'/>
         </data-member>
@@ -68389,15 +68463,15 @@
           <var-decl name='dstats' type-id='f59f5033' visibility='default' filepath='include/linux/netdevice.h' line='2156' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/net/netns/generic.h' line='29' column='1' id='ac5ab62e'>
+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/net/netns/generic.h' line='29' column='1' id='ac5ab62d'>
         <data-member access='public'>
-          <var-decl name='s' type-id='e7f44024' visibility='default' filepath='include/net/netns/generic.h' line='33' column='1'/>
+          <var-decl name='s' type-id='e7f44025' visibility='default' filepath='include/net/netns/generic.h' line='33' column='1'/>
         </data-member>
         <data-member access='public'>
           <var-decl name='ptr' type-id='baf98fd3' visibility='default' filepath='include/net/netns/generic.h' line='35' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/memcontrol.h' line='199' column='1' id='ac5ab62e'>
         <data-member access='public'>
           <var-decl name='list' type-id='72f469ec' visibility='default' filepath='include/linux/memcontrol.h' line='200' column='1'/>
         </data-member>
@@ -68405,37 +68479,37 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/memcontrol.h' line='201' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='arch/arm64/include/asm/thread_info.h' line='32' column='1' id='ac5ab630'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='arch/arm64/include/asm/thread_info.h' line='32' column='1' id='ac5ab62f'>
         <data-member access='public'>
           <var-decl name='preempt_count' type-id='91ce1af9' visibility='default' filepath='arch/arm64/include/asm/thread_info.h' line='33' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='preempt' type-id='e7f43fda' visibility='default' filepath='arch/arm64/include/asm/thread_info.h' line='42' column='1'/>
+          <var-decl name='preempt' type-id='e7f43fdb' visibility='default' filepath='arch/arm64/include/asm/thread_info.h' line='42' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/asm-generic/qspinlock_types.h' line='15' column='1' id='ac5ab630'>
         <data-member access='public'>
           <var-decl name='val' type-id='49178f86' visibility='default' filepath='include/asm-generic/qspinlock_types.h' line='16' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fdb' visibility='default' filepath='include/asm-generic/qspinlock_types.h' line='24' column='1'/>
+          <var-decl name='' type-id='e7f43fdc' visibility='default' filepath='include/asm-generic/qspinlock_types.h' line='24' column='1'/>
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         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fdc' visibility='default' filepath='include/asm-generic/qspinlock_types.h' line='28' column='1'/>
+          <var-decl name='' type-id='e7f43fdd' visibility='default' filepath='include/asm-generic/qspinlock_types.h' line='28' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='27' column='1' id='ac5ab631'>
         <data-member access='public'>
-          <var-decl name='futex' type-id='e7f43fdd' visibility='default' filepath='include/linux/restart_block.h' line='36' column='1'/>
+          <var-decl name='futex' type-id='e7f43fde' visibility='default' filepath='include/linux/restart_block.h' line='36' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='nanosleep' type-id='e7f43fde' visibility='default' filepath='include/linux/restart_block.h' line='46' column='1'/>
+          <var-decl name='nanosleep' type-id='e7f43fdf' visibility='default' filepath='include/linux/restart_block.h' line='46' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='poll' type-id='e7f43fdf' visibility='default' filepath='include/linux/restart_block.h' line='54' column='1'/>
+          <var-decl name='poll' type-id='e7f43fe0' visibility='default' filepath='include/linux/restart_block.h' line='54' column='1'/>
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-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='41' column='1' id='ac5ab633'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='41' column='1' id='ac5ab632'>
         <data-member access='public'>
           <var-decl name='rmtp' type-id='59229509' visibility='default' filepath='include/linux/restart_block.h' line='42' column='1'/>
         </data-member>
@@ -68443,6 +68517,14 @@
           <var-decl name='compat_rmtp' type-id='e69c040e' visibility='default' filepath='include/linux/restart_block.h' line='43' column='1'/>
         </data-member>
       </union-decl>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/sched.h' line='1217' column='1' id='ac5ab633'>
+        <data-member access='public'>
+          <var-decl name='rcu_users' type-id='64615833' visibility='default' filepath='include/linux/sched.h' line='1218' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/sched.h' line='1219' column='1'/>
+        </data-member>
+      </union-decl>
       <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/linux/smp_types.h' line='60' column='1' id='ac5ab634'>
         <data-member access='public'>
           <var-decl name='u_flags' type-id='f0981eeb' visibility='default' filepath='include/linux/smp_types.h' line='61' column='1'/>
@@ -68461,10 +68543,10 @@
           <var-decl name='_addr_lsb' type-id='a2185560' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='82' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='_addr_bnd' type-id='e7f43fe9' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='88' column='1'/>
+          <var-decl name='_addr_bnd' type-id='e7f43fea' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='88' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='_addr_pkey' type-id='e7f43fea' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='93' column='1'/>
+          <var-decl name='_addr_pkey' type-id='e7f43feb' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='93' column='1'/>
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@@ -68480,7 +68562,7 @@
           <var-decl name='capabilities' type-id='d3130597' visibility='default' filepath='include/uapi/linux/perf_event.h' line='530' column='1'/>
         </data-member>
         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fec' visibility='default' filepath='include/uapi/linux/perf_event.h' line='531' column='1'/>
+          <var-decl name='' type-id='e7f43fed' visibility='default' filepath='include/uapi/linux/perf_event.h' line='531' column='1'/>
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       <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/fs_context.h' line='66' column='1' id='ac5ab639'>
@@ -68516,7 +68598,7 @@
           <var-decl name='node' type-id='94c5e8ed' visibility='default' filepath='include/linux/smp.h' line='25' column='1'/>
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         <data-member access='public'>
-          <var-decl name='' type-id='e7f43fef' visibility='default' filepath='include/linux/smp.h' line='26' column='1'/>
+          <var-decl name='' type-id='e7f43ff0' visibility='default' filepath='include/linux/smp.h' line='26' column='1'/>
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       <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/tty.h' line='60' column='1' id='ac5ab63c'>
@@ -68529,7 +68611,7 @@
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         <data-member access='public'>
-          <var-decl name='' type-id='e7f43ff0' visibility='default' filepath='include/linux/msi.h' line='102' column='1'/>
+          <var-decl name='' type-id='e7f43ff1' visibility='default' filepath='include/linux/msi.h' line='102' column='1'/>
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         <data-member access='public'>
           <var-decl name='platform' type-id='2ae2d1e2' visibility='default' filepath='include/linux/msi.h' line='127' column='1'/>
@@ -68575,7 +68657,7 @@
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         <data-member access='public'>
-          <var-decl name='tail_call' type-id='e7f43ff5' visibility='default' filepath='include/linux/bpf.h' line='771' column='1'/>
+          <var-decl name='tail_call' type-id='e7f43ff6' visibility='default' filepath='include/linux/bpf.h' line='771' column='1'/>
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       <union-decl name='__anonymous_union__' size-in-bits='384' is-anonymous='yes' visibility='default' filepath='include/linux/bpf.h' line='862' column='1' id='ac5ab643'>
@@ -68608,13 +68690,13 @@
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         <data-member access='public'>
-          <var-decl name='' type-id='e7f43ff7' visibility='default' filepath='include/linux/netdevice.h' line='917' column='1'/>
+          <var-decl name='' type-id='e7f43ff8' visibility='default' filepath='include/linux/netdevice.h' line='917' column='1'/>
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         <data-member access='public'>
-          <var-decl name='' type-id='e7f43ff8' visibility='default' filepath='include/linux/netdevice.h' line='923' column='1'/>
+          <var-decl name='' type-id='e7f43ff9' visibility='default' filepath='include/linux/netdevice.h' line='923' column='1'/>
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         <data-member access='public'>
-          <var-decl name='xsk' type-id='e7f43ff9' visibility='default' filepath='include/linux/netdevice.h' line='930' column='1'/>
+          <var-decl name='xsk' type-id='e7f43ffa' visibility='default' filepath='include/linux/netdevice.h' line='930' column='1'/>
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@@ -68645,7 +68727,7 @@
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           <var-decl name='validate' type-id='9c9480f6' visibility='default' filepath='include/net/netlink.h' line='329' column='1'/>
@@ -68656,13 +68738,13 @@
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@@ -68703,7 +68785,7 @@
           <var-decl name='target_btf_id' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='668' column='1'/>
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@@ -68836,10 +68918,10 @@
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+          <var-decl name='udf' type-id='e7f44014' visibility='default' filepath='include/linux/exportfs.h' line='133' column='1'/>
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@@ -68847,27 +68929,27 @@
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+          <var-decl name='raw_tracepoint' type-id='e7f44017' visibility='default' filepath='include/uapi/linux/bpf.h' line='4432' column='1'/>
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+          <var-decl name='netns' type-id='e7f4401b' visibility='default' filepath='include/uapi/linux/bpf.h' line='4452' column='1'/>
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+          <var-decl name='xdp' type-id='e7f4401c' visibility='default' filepath='include/uapi/linux/bpf.h' line='4455' column='1'/>
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@@ -68875,22 +68957,22 @@
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+          <var-decl name='tcp' type-id='e7f44020' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='49' column='1'/>
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+          <var-decl name='sctp' type-id='e7f44020' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='61' column='1'/>
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@@ -68949,36 +69031,36 @@
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+          <var-decl name='tkip' type-id='e7f44028' visibility='default' filepath='include/net/mac80211.h' line='1896' column='1'/>
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+          <var-decl name='aes_cmac' type-id='e7f44029' visibility='default' filepath='include/net/mac80211.h' line='1902' column='1'/>
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+          <var-decl name='aes_gmac' type-id='e7f44029' visibility='default' filepath='include/net/mac80211.h' line='1905' column='1'/>
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+          <var-decl name='gcmp' type-id='e7f44029' visibility='default' filepath='include/net/mac80211.h' line='1908' column='1'/>
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+          <var-decl name='hw' type-id='e7f4402a' visibility='default' filepath='include/net/mac80211.h' line='1912' column='1'/>
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+          <var-decl name='control' type-id='e7f4402c' visibility='default' filepath='include/net/mac80211.h' line='1081' column='1'/>
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+          <var-decl name='ack' type-id='e7f4402d' visibility='default' filepath='include/net/mac80211.h' line='1084' column='1'/>
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+          <var-decl name='status' type-id='e7f4402e' visibility='default' filepath='include/net/mac80211.h' line='1094' column='1'/>
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           <var-decl name='android_kabi_reserved1' type-id='91ce1af9' visibility='default' filepath='include/net/mac80211.h' line='1104' column='1'/>
@@ -68989,7 +69071,7 @@
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           <var-decl name='jiffies' type-id='7359adad' visibility='default' filepath='include/net/mac80211.h' line='1074' column='1'/>
@@ -69005,96 +69087,96 @@
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+          <var-decl name='auth' type-id='e7f44034' visibility='default' filepath='include/linux/ieee80211.h' line='1105' column='1'/>
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+          <var-decl name='deauth' type-id='e7f44035' visibility='default' filepath='include/linux/ieee80211.h' line='1108' column='1'/>
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+          <var-decl name='assoc_req' type-id='e7f44036' visibility='default' filepath='include/linux/ieee80211.h' line='1114' column='1'/>
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+          <var-decl name='assoc_resp' type-id='e7f44037' visibility='default' filepath='include/linux/ieee80211.h' line='1121' column='1'/>
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+          <var-decl name='reassoc_resp' type-id='e7f44037' visibility='default' filepath='include/linux/ieee80211.h' line='1121' column='1'/>
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+          <var-decl name='s1g_assoc_resp' type-id='e7f44038' visibility='default' filepath='include/linux/ieee80211.h' line='1126' column='1'/>
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+          <var-decl name='s1g_reassoc_resp' type-id='e7f44038' visibility='default' filepath='include/linux/ieee80211.h' line='1126' column='1'/>
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+          <var-decl name='reassoc_req' type-id='e7f44039' visibility='default' filepath='include/linux/ieee80211.h' line='1133' column='1'/>
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+          <var-decl name='disassoc' type-id='e7f44035' visibility='default' filepath='include/linux/ieee80211.h' line='1136' column='1'/>
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+          <var-decl name='probe_req' type-id='e7f4403b' visibility='default' filepath='include/linux/ieee80211.h' line='1148' column='1'/>
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+          <var-decl name='action' type-id='e7f4403c' visibility='default' filepath='include/linux/ieee80211.h' line='1256' column='1'/>
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+          <var-decl name='self_prot' type-id='e7f4403e' visibility='default' filepath='include/linux/ieee80211.h' line='1206' column='1'/>
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+          <var-decl name='mesh_action' type-id='e7f4403e' visibility='default' filepath='include/linux/ieee80211.h' line='1210' column='1'/>
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+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='29' column='1' id='e7f43fde'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='uaddr' type-id='f9409001' visibility='default' filepath='include/linux/restart_block.h' line='30' column='1'/>
         </data-member>
@@ -94721,7 +94837,7 @@
           <var-decl name='uaddr2' type-id='f9409001' visibility='default' filepath='include/linux/restart_block.h' line='35' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='38' column='1' id='e7f43fde'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='38' column='1' id='e7f43fdf'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='clockid' type-id='a1c3b834' visibility='default' filepath='include/linux/restart_block.h' line='39' column='1'/>
         </data-member>
@@ -94729,13 +94845,13 @@
           <var-decl name='type' type-id='58918b27' visibility='default' filepath='include/linux/restart_block.h' line='40' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='' type-id='ac5ab633' visibility='default' filepath='include/linux/restart_block.h' line='41' column='1'/>
+          <var-decl name='' type-id='ac5ab632' visibility='default' filepath='include/linux/restart_block.h' line='41' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='expires' type-id='91ce1af9' visibility='default' filepath='include/linux/restart_block.h' line='45' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='48' column='1' id='e7f43fdf'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/restart_block.h' line='48' column='1' id='e7f43fe0'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ufds' type-id='3ac36db0' visibility='default' filepath='include/linux/restart_block.h' line='49' column='1'/>
         </data-member>
@@ -94752,7 +94868,7 @@
           <var-decl name='tv_nsec' type-id='7359adad' visibility='default' filepath='include/linux/restart_block.h' line='53' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/sched.h' line='640' column='1' id='e7f43fe0'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/sched.h' line='640' column='1' id='e7f43fe1'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='blocked' type-id='f9b06939' visibility='default' filepath='include/linux/sched.h' line='641' column='1'/>
         </data-member>
@@ -94766,7 +94882,7 @@
           <var-decl name='need_mb' type-id='f9b06939' visibility='default' filepath='include/linux/sched.h' line='644' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/signal_types.h' line='13' column='1' id='e7f43fe1'>
+      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/signal_types.h' line='13' column='1' id='e7f43fe2'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='si_signo' type-id='95e97e5e' visibility='default' filepath='include/linux/signal_types.h' line='13' column='1'/>
         </data-member>
@@ -94780,7 +94896,7 @@
           <var-decl name='_sifields' type-id='a60646cb' visibility='default' filepath='include/linux/signal_types.h' line='13' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='34' column='1' id='e7f43fe2'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='34' column='1' id='e7f43fe3'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_pid' type-id='63eb2bf2' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='35' column='1'/>
         </data-member>
@@ -94788,7 +94904,7 @@
           <var-decl name='_uid' type-id='70734f24' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='36' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='40' column='1' id='e7f43fe3'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='40' column='1' id='e7f43fe4'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_tid' type-id='c28acba6' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='41' column='1'/>
         </data-member>
@@ -94802,7 +94918,7 @@
           <var-decl name='_sys_private' type-id='95e97e5e' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='44' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='48' column='1' id='e7f43fe4'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='48' column='1' id='e7f43fe5'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_pid' type-id='63eb2bf2' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='49' column='1'/>
         </data-member>
@@ -94813,7 +94929,7 @@
           <var-decl name='_sigval' type-id='95506cfb' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='51' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='55' column='1' id='e7f43fe5'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='55' column='1' id='e7f43fe6'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_pid' type-id='63eb2bf2' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='56' column='1'/>
         </data-member>
@@ -94830,7 +94946,7 @@
           <var-decl name='_stime' type-id='880ebc01' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='60' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='64' column='1' id='e7f43fe6'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='64' column='1' id='e7f43fe7'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_addr' type-id='eaa32e2f' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='65' column='1'/>
         </data-member>
@@ -94838,7 +94954,7 @@
           <var-decl name='' type-id='ac5ab636' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='77' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='98' column='1' id='e7f43fe7'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='98' column='1' id='e7f43fe8'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_band' type-id='bd54fe1a' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='99' column='1'/>
         </data-member>
@@ -94846,7 +94962,7 @@
           <var-decl name='_fd' type-id='95e97e5e' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='100' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='104' column='1' id='e7f43fe8'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='104' column='1' id='e7f43fe9'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_call_addr' type-id='eaa32e2f' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='105' column='1'/>
         </data-member>
@@ -94857,7 +94973,7 @@
           <var-decl name='_arch' type-id='f0981eeb' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='107' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='84' column='1' id='e7f43fe9'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='84' column='1' id='e7f43fea'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_dummy_bnd' type-id='8e100159' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='85' column='1'/>
         </data-member>
@@ -94868,7 +94984,7 @@
           <var-decl name='_upper' type-id='eaa32e2f' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='87' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='90' column='1' id='e7f43fea'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='90' column='1' id='e7f43feb'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='_dummy_pkey' type-id='8e100159' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='91' column='1'/>
         </data-member>
@@ -94876,7 +94992,7 @@
           <var-decl name='_pkey' type-id='3f1a6b60' visibility='default' filepath='include/uapi/asm-generic/siginfo.h' line='92' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='kernel/sched/sched.h' line='568' column='1' id='e7f43feb'>
+      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='kernel/sched/sched.h' line='568' column='1' id='e7f43fec'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='lock' type-id='f5c90b3f' visibility='default' filepath='kernel/sched/sched.h' line='569' column='1'/>
         </data-member>
@@ -94893,7 +95009,7 @@
           <var-decl name='runnable_avg' type-id='7359adad' visibility='default' filepath='kernel/sched/sched.h' line='573' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/perf_event.h' line='531' column='1' id='e7f43fec'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/perf_event.h' line='531' column='1' id='e7f43fed'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='cap_bit0' type-id='d3130597' visibility='default' filepath='include/uapi/linux/perf_event.h' line='532' column='1'/>
         </data-member>
@@ -94916,7 +95032,7 @@
           <var-decl name='cap_____res' type-id='d3130597' visibility='default' filepath='include/uapi/linux/perf_event.h' line='539' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/blkdev.h' line='188' column='1' id='e7f43fed'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/blkdev.h' line='188' column='1' id='e7f43fee'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='icq' type-id='7c6e0e0c' visibility='default' filepath='include/linux/blkdev.h' line='189' column='1'/>
         </data-member>
@@ -94924,7 +95040,7 @@
           <var-decl name='priv' type-id='24ae0315' visibility='default' filepath='include/linux/blkdev.h' line='190' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/blkdev.h' line='193' column='1' id='e7f43fee'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/blkdev.h' line='193' column='1' id='e7f43fef'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='seq' type-id='f0981eeb' visibility='default' filepath='include/linux/blkdev.h' line='194' column='1'/>
         </data-member>
@@ -94935,7 +95051,7 @@
           <var-decl name='saved_end_io' type-id='5afdaa66' visibility='default' filepath='include/linux/blkdev.h' line='196' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/smp.h' line='26' column='1' id='e7f43fef'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/smp.h' line='26' column='1' id='e7f43ff0'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='llist' type-id='c5ccfee8' visibility='default' filepath='include/linux/smp.h' line='27' column='1'/>
         </data-member>
@@ -94949,18 +95065,18 @@
           <var-decl name='dst' type-id='1dc6a898' visibility='default' filepath='include/linux/smp.h' line='30' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/msi.h' line='102' column='1' id='e7f43ff0'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/msi.h' line='102' column='1' id='e7f43ff1'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='masked' type-id='19c2251e' visibility='default' filepath='include/linux/msi.h' line='103' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='msi_attrib' type-id='e7f43ff1' visibility='default' filepath='include/linux/msi.h' line='113' column='1'/>
+          <var-decl name='msi_attrib' type-id='e7f43ff2' visibility='default' filepath='include/linux/msi.h' line='113' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
           <var-decl name='' type-id='ac5ab63e' visibility='default' filepath='include/linux/msi.h' line='114' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/msi.h' line='104' column='1' id='e7f43ff1'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/msi.h' line='104' column='1' id='e7f43ff2'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='is_msix' type-id='f9b06939' visibility='default' filepath='include/linux/msi.h' line='105' column='1'/>
         </data-member>
@@ -94986,7 +95102,7 @@
           <var-decl name='default_irq' type-id='f0981eeb' visibility='default' filepath='include/linux/msi.h' line='112' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='kernel/sched/sched.h' line='640' column='1' id='e7f43ff2'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='kernel/sched/sched.h' line='640' column='1' id='e7f43ff3'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='curr' type-id='95e97e5e' visibility='default' filepath='kernel/sched/sched.h' line='641' column='1'/>
         </data-member>
@@ -94994,7 +95110,7 @@
           <var-decl name='next' type-id='95e97e5e' visibility='default' filepath='kernel/sched/sched.h' line='643' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='kernel/sched/sched.h' line='689' column='1' id='e7f43ff3'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='kernel/sched/sched.h' line='689' column='1' id='e7f43ff4'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='curr' type-id='91ce1af9' visibility='default' filepath='kernel/sched/sched.h' line='690' column='1'/>
         </data-member>
@@ -95002,7 +95118,7 @@
           <var-decl name='next' type-id='91ce1af9' visibility='default' filepath='kernel/sched/sched.h' line='691' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/bpf.h' line='619' column='1' id='e7f43ff4'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/bpf.h' line='619' column='1' id='e7f43ff5'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='model' type-id='323174d0' visibility='default' filepath='include/linux/bpf.h' line='620' column='1'/>
         </data-member>
@@ -95013,7 +95129,7 @@
           <var-decl name='ftrace_managed' type-id='b50a4934' visibility='default' filepath='include/linux/bpf.h' line='622' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/bpf.h' line='768' column='1' id='e7f43ff5'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/bpf.h' line='768' column='1' id='e7f43ff6'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='map' type-id='00ee50b8' visibility='default' filepath='include/linux/bpf.h' line='769' column='1'/>
         </data-member>
@@ -95021,7 +95137,7 @@
           <var-decl name='key' type-id='19c2251e' visibility='default' filepath='include/linux/bpf.h' line='770' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ethtool.h' line='123' column='1' id='e7f43ff6'>
+      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ethtool.h' line='123' column='1' id='e7f43ff7'>
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@@ -95032,7 +95148,7 @@
           <var-decl name='lp_advertising' type-id='f05e8e77' visibility='default' filepath='include/linux/ethtool.h' line='126' column='1'/>
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       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='917' column='1' id='e7f43ff7'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='917' column='1' id='e7f43ff8'>
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           <var-decl name='flags' type-id='19c2251e' visibility='default' filepath='include/linux/netdevice.h' line='918' column='1'/>
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@@ -95043,12 +95159,12 @@
           <var-decl name='extack' type-id='5799dc94' visibility='default' filepath='include/linux/netdevice.h' line='920' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='923' column='1' id='e7f43ff8'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='923' column='1' id='e7f43ff9'>
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           <var-decl name='offmap' type-id='366d2695' visibility='default' filepath='include/linux/netdevice.h' line='924' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='927' column='1' id='e7f43ff9'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='927' column='1' id='e7f43ffa'>
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           <var-decl name='pool' type-id='81e0c1b8' visibility='default' filepath='include/linux/netdevice.h' line='928' column='1'/>
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@@ -95056,7 +95172,7 @@
           <var-decl name='queue_id' type-id='1dc6a898' visibility='default' filepath='include/linux/netdevice.h' line='929' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netlink.h' line='326' column='1' id='e7f43ffa'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netlink.h' line='326' column='1' id='e7f43ffb'>
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           <var-decl name='min' type-id='9b7e9486' visibility='default' filepath='include/net/netlink.h' line='327' column='1'/>
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@@ -95064,7 +95180,7 @@
           <var-decl name='max' type-id='9b7e9486' visibility='default' filepath='include/net/netlink.h' line='327' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='331' column='1' id='e7f43ffb'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='331' column='1' id='e7f43ffc'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='class' type-id='7359adad' visibility='default' filepath='include/net/sch_generic.h' line='332' column='1'/>
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@@ -95072,7 +95188,7 @@
           <var-decl name='classid' type-id='19c2251e' visibility='default' filepath='include/net/sch_generic.h' line='333' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='338' column='1' id='e7f43ffc'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='338' column='1' id='e7f43ffd'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ingress' type-id='b50a4934' visibility='default' filepath='include/net/sch_generic.h' line='339' column='1'/>
         </data-member>
@@ -95080,7 +95196,7 @@
           <var-decl name='qstats' type-id='338303f5' visibility='default' filepath='include/net/sch_generic.h' line='340' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='483' column='1' id='e7f43ffd'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/sch_generic.h' line='483' column='1' id='e7f43ffe'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='chain' type-id='45305972' visibility='default' filepath='include/net/sch_generic.h' line='484' column='1'/>
         </data-member>
@@ -95088,7 +95204,7 @@
           <var-decl name='filter_chain_list' type-id='72f469ec' visibility='default' filepath='include/net/sch_generic.h' line='485' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='485' column='1' id='e7f43ffe'>
+      <class-decl name='__anonymous_struct__' size-in-bits='512' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='485' column='1' id='e7f43fff'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='map_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='486' column='1'/>
         </data-member>
@@ -95129,7 +95245,7 @@
           <var-decl name='btf_vmlinux_value_type_id' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='502' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='508' column='1' id='e7f43fff'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='508' column='1' id='e7f44000'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='map_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='509' column='1'/>
         </data-member>
@@ -95143,7 +95259,7 @@
           <var-decl name='flags' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='515' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='448' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='518' column='1' id='e7f44000'>
+      <class-decl name='__anonymous_struct__' size-in-bits='448' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='518' column='1' id='e7f44001'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='in_batch' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='519' column='1'/>
         </data-member>
@@ -95169,7 +95285,7 @@
           <var-decl name='flags' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='532' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='960' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='535' column='1' id='e7f44001'>
+      <class-decl name='__anonymous_struct__' size-in-bits='960' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='535' column='1' id='e7f44002'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='prog_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='536' column='1'/>
         </data-member>
@@ -95234,7 +95350,7 @@
           <var-decl name='attach_prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='560' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='563' column='1' id='e7f44002'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='563' column='1' id='e7f44003'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='pathname' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='564' column='1'/>
         </data-member>
@@ -95245,7 +95361,7 @@
           <var-decl name='file_flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='566' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='569' column='1' id='e7f44003'>
+      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='569' column='1' id='e7f44004'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='target_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='570' column='1'/>
         </data-member>
@@ -95262,7 +95378,7 @@
           <var-decl name='replace_bpf_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='574' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='576' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='580' column='1' id='e7f44004'>
+      <class-decl name='__anonymous_struct__' size-in-bits='576' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='580' column='1' id='e7f44005'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='581' column='1'/>
         </data-member>
@@ -95306,7 +95422,7 @@
           <var-decl name='cpu' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='600' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='603' column='1' id='e7f44005'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='603' column='1' id='e7f44006'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='' type-id='ac5ab64a' visibility='default' filepath='include/uapi/linux/bpf.h' line='604' column='1'/>
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@@ -95317,7 +95433,7 @@
           <var-decl name='open_flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='612' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='615' column='1' id='e7f44006'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='615' column='1' id='e7f44007'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='bpf_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='616' column='1'/>
         </data-member>
@@ -95328,7 +95444,7 @@
           <var-decl name='info' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='618' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='621' column='1' id='e7f44007'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='621' column='1' id='e7f44008'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='target_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='622' column='1'/>
         </data-member>
@@ -95348,7 +95464,7 @@
           <var-decl name='prog_cnt' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='627' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='630' column='1' id='e7f44008'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='630' column='1' id='e7f44009'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='name' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='631' column='1'/>
         </data-member>
@@ -95356,7 +95472,7 @@
           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='632' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='635' column='1' id='e7f44009'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='635' column='1' id='e7f4400a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='btf' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='636' column='1'/>
         </data-member>
@@ -95373,7 +95489,7 @@
           <var-decl name='btf_log_level' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='640' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='643' column='1' id='e7f4400a'>
+      <class-decl name='__anonymous_struct__' size-in-bits='384' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='643' column='1' id='e7f4400b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='pid' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='644' column='1'/>
         </data-member>
@@ -95402,7 +95518,7 @@
           <var-decl name='probe_addr' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='656' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='659' column='1' id='e7f4400b'>
+      <class-decl name='__anonymous_struct__' size-in-bits='256' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='659' column='1' id='e7f4400c'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='660' column='1'/>
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@@ -95419,7 +95535,7 @@
           <var-decl name='' type-id='ac5ab64c' visibility='default' filepath='include/uapi/linux/bpf.h' line='667' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='676' column='1' id='e7f4400c'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='676' column='1' id='e7f4400d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='link_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='677' column='1'/>
         </data-member>
@@ -95433,17 +95549,17 @@
           <var-decl name='old_prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='683' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='686' column='1' id='e7f4400d'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='686' column='1' id='e7f4400e'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='link_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='687' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='690' column='1' id='e7f4400e'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='690' column='1' id='e7f4400f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='691' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='694' column='1' id='e7f4400f'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='694' column='1' id='e7f44010'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='link_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='695' column='1'/>
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@@ -95451,7 +95567,7 @@
           <var-decl name='flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='696' column='1'/>
         </data-member>
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-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='699' column='1' id='e7f44010'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='699' column='1' id='e7f44011'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='prog_fd' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='700' column='1'/>
         </data-member>
@@ -95462,7 +95578,7 @@
           <var-decl name='flags' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='702' column='1'/>
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-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='669' column='1' id='e7f44011'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='669' column='1' id='e7f44012'>
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           <var-decl name='iter_info' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='670' column='1'/>
         </data-member>
@@ -95470,7 +95586,7 @@
           <var-decl name='iter_info_len' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='671' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/exportfs.h' line='120' column='1' id='e7f44012'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/exportfs.h' line='120' column='1' id='e7f44013'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ino' type-id='19c2251e' visibility='default' filepath='include/linux/exportfs.h' line='121' column='1'/>
         </data-member>
@@ -95484,7 +95600,7 @@
           <var-decl name='parent_gen' type-id='19c2251e' visibility='default' filepath='include/linux/exportfs.h' line='124' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/exportfs.h' line='126' column='1' id='e7f44013'>
+      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/exportfs.h' line='126' column='1' id='e7f44014'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='block' type-id='19c2251e' visibility='default' filepath='include/linux/exportfs.h' line='127' column='1'/>
         </data-member>
@@ -95504,7 +95620,7 @@
           <var-decl name='parent_generation' type-id='19c2251e' visibility='default' filepath='include/linux/exportfs.h' line='132' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/cpu_rmap.h' line='28' column='1' id='e7f44014'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/cpu_rmap.h' line='28' column='1' id='e7f44015'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='index' type-id='1dc6a898' visibility='default' filepath='include/linux/cpu_rmap.h' line='29' column='1'/>
         </data-member>
@@ -95512,7 +95628,7 @@
           <var-decl name='dist' type-id='1dc6a898' visibility='default' filepath='include/linux/cpu_rmap.h' line='30' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='3282' column='1' id='e7f44015'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/netdevice.h' line='3282' column='1' id='e7f44016'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='recursion' type-id='1dc6a898' visibility='default' filepath='include/linux/netdevice.h' line='3283' column='1'/>
         </data-member>
@@ -95520,7 +95636,7 @@
           <var-decl name='more' type-id='f9b06939' visibility='default' filepath='include/linux/netdevice.h' line='3284' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4429' column='1' id='e7f44016'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4429' column='1' id='e7f44017'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='tp_name' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='4430' column='1'/>
         </data-member>
@@ -95528,12 +95644,12 @@
           <var-decl name='tp_name_len' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4431' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4433' column='1' id='e7f44017'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4433' column='1' id='e7f44018'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='attach_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4434' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4436' column='1' id='e7f44018'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4436' column='1' id='e7f44019'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='cgroup_id' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='4437' column='1'/>
         </data-member>
@@ -95541,7 +95657,7 @@
           <var-decl name='attach_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4438' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4440' column='1' id='e7f44019'>
+      <class-decl name='__anonymous_struct__' size-in-bits='128' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4440' column='1' id='e7f4401a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='target_name' type-id='d3130597' visibility='default' filepath='include/uapi/linux/bpf.h' line='4441' column='1'/>
         </data-member>
@@ -95552,7 +95668,7 @@
           <var-decl name='' type-id='ac5ab659' visibility='default' filepath='include/uapi/linux/bpf.h' line='4443' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4449' column='1' id='e7f4401a'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4449' column='1' id='e7f4401b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='netns_ino' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4450' column='1'/>
         </data-member>
@@ -95560,18 +95676,18 @@
           <var-decl name='attach_type' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4451' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4453' column='1' id='e7f4401b'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4453' column='1' id='e7f4401c'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='ifindex' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4454' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4444' column='1' id='e7f4401c'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/bpf.h' line='4444' column='1' id='e7f4401d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='map_id' type-id='3f1a6b60' visibility='default' filepath='include/uapi/linux/bpf.h' line='4445' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack.h' line='92' column='1' id='e7f4401d'/>
-      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='41' column='1' id='e7f4401e'>
+      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack.h' line='92' column='1' id='e7f4401e'/>
+      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='41' column='1' id='e7f4401f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='u3' type-id='8c17f46b' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='42' column='1'/>
         </data-member>
@@ -95585,12 +95701,12 @@
           <var-decl name='dir' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='71' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='24' column='1' id='e7f4401f'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='24' column='1' id='e7f44020'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='port' type-id='84a5c3d4' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='25' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='53' column='1' id='e7f44020'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='53' column='1' id='e7f44021'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='type' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='54' column='1'/>
         </data-member>
@@ -95598,12 +95714,12 @@
           <var-decl name='code' type-id='892641a4' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='54' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='39' column='1' id='e7f44021'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='39' column='1' id='e7f44022'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='key' type-id='84a5c3d4' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='40' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='76' column='1' id='e7f44022'>
+      <class-decl name='__anonymous_struct__' size-in-bits='160' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='76' column='1' id='e7f44023'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='u3' type-id='8c17f46b' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='77' column='1'/>
         </data-member>
@@ -95611,12 +95727,12 @@
           <var-decl name='u' type-id='cfd75634' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='78' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='30' column='1' id='e7f44023'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='30' column='1' id='e7f44024'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='id' type-id='84a5c3d4' visibility='default' filepath='include/uapi/linux/netfilter/nf_conntrack_tuple_common.h' line='31' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netns/generic.h' line='30' column='1' id='e7f44024'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/netns/generic.h' line='30' column='1' id='e7f44025'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='len' type-id='f0981eeb' visibility='default' filepath='include/net/netns/generic.h' line='31' column='1'/>
         </data-member>
@@ -95624,7 +95740,7 @@
           <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/net/netns/generic.h' line='32' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='2005' column='1' id='e7f44025'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='2005' column='1' id='e7f44026'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='idx' type-id='fdbf7a0f' visibility='default' filepath='include/net/mac80211.h' line='2006' column='1'/>
         </data-member>
@@ -95641,7 +95757,7 @@
           <var-decl name='flags' type-id='1dc6a898' visibility='default' filepath='include/net/mac80211.h' line='2010' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='695' column='1' id='e7f44026'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='695' column='1' id='e7f44027'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='params' type-id='19c2251e' visibility='default' filepath='include/net/mac80211.h' line='696' column='1'/>
         </data-member>
@@ -95649,7 +95765,7 @@
           <var-decl name='nss_set' type-id='1dc6a898' visibility='default' filepath='include/net/mac80211.h' line='697' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1893' column='1' id='e7f44027'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1893' column='1' id='e7f44028'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='iv32' type-id='19c2251e' visibility='default' filepath='include/net/mac80211.h' line='1894' column='1'/>
         </data-member>
@@ -95657,12 +95773,12 @@
           <var-decl name='iv16' type-id='1dc6a898' visibility='default' filepath='include/net/mac80211.h' line='1895' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1897' column='1' id='e7f44028'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1897' column='1' id='e7f44029'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='pn' type-id='cf1a4160' visibility='default' filepath='include/net/mac80211.h' line='1898' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='136' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1909' column='1' id='e7f44029'>
+      <class-decl name='__anonymous_struct__' size-in-bits='136' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1909' column='1' id='e7f4402a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='seq' type-id='0d8415b5' visibility='default' filepath='include/net/mac80211.h' line='1910' column='1'/>
         </data-member>
@@ -95670,7 +95786,7 @@
           <var-decl name='seq_len' type-id='f9b06939' visibility='default' filepath='include/net/mac80211.h' line='1911' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='2608' column='1' id='e7f4402a'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='2608' column='1' id='e7f4402b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='units_pos' type-id='95e97e5e' visibility='default' filepath='include/net/mac80211.h' line='2609' column='1'/>
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@@ -95678,7 +95794,7 @@
           <var-decl name='accuracy' type-id='9b7e9486' visibility='default' filepath='include/net/mac80211.h' line='2610' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1060' column='1' id='e7f4402b'>
+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1060' column='1' id='e7f4402c'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
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@@ -95695,12 +95811,12 @@
           <var-decl name='enqueue_time' type-id='989b7c52' visibility='default' filepath='include/net/mac80211.h' line='1080' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1082' column='1' id='e7f4402c'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1082' column='1' id='e7f4402d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='cookie' type-id='91ce1af9' visibility='default' filepath='include/net/mac80211.h' line='1083' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1085' column='1' id='e7f4402d'>
+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1085' column='1' id='e7f4402e'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='rates' type-id='bd01d8eb' visibility='default' filepath='include/net/mac80211.h' line='1086' column='1'/>
         </data-member>
@@ -95726,7 +95842,7 @@
           <var-decl name='status_driver_data' type-id='24ae0315' visibility='default' filepath='include/net/mac80211.h' line='1093' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1095' column='1' id='e7f4402e'>
+      <class-decl name='__anonymous_struct__' size-in-bits='320' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1095' column='1' id='e7f4402f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='driver_rates' type-id='bd01d8eb' visibility='default' filepath='include/net/mac80211.h' line='1096' column='1'/>
         </data-member>
@@ -95737,7 +95853,7 @@
           <var-decl name='rate_driver_data' type-id='20b03b60' visibility='default' filepath='include/net/mac80211.h' line='1100' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='112' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1' id='e7f4402f'>
+      <class-decl name='__anonymous_struct__' size-in-bits='112' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1063' column='1' id='e7f44030'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='rates' type-id='bd01d8eb' visibility='default' filepath='include/net/mac80211.h' line='1064' column='1'/>
         </data-member>
@@ -95757,7 +95873,7 @@
           <var-decl name='skip_table' type-id='f9b06939' visibility='default' filepath='include/net/mac80211.h' line='1070' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='480' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='705' column='1' id='e7f44030'>
+      <class-decl name='__anonymous_struct__' size-in-bits='480' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='705' column='1' id='e7f44031'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='legacy' type-id='19c2251e' visibility='default' filepath='include/net/cfg80211.h' line='706' column='1'/>
         </data-member>
@@ -95780,7 +95896,7 @@
           <var-decl name='he_ltf' type-id='dc98a315' visibility='default' filepath='include/net/cfg80211.h' line='712' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='4715' column='1' id='e7f44031'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='4715' column='1' id='e7f44032'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='preambles' type-id='19c2251e' visibility='default' filepath='include/net/cfg80211.h' line='4716' column='1'/>
         </data-member>
@@ -95815,7 +95931,7 @@
           <var-decl name='non_trigger_based' type-id='f9b06939' visibility='default' filepath='include/net/cfg80211.h' line='4726' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='5068' column='1' id='e7f44032'>
+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='5068' column='1' id='e7f44033'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='peer' type-id='91ce1af9' visibility='default' filepath='include/net/cfg80211.h' line='5069' column='1'/>
         </data-member>
@@ -95826,7 +95942,7 @@
           <var-decl name='max_retry' type-id='f9b06939' visibility='default' filepath='include/net/cfg80211.h' line='5070' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1099' column='1' id='e7f44033'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1099' column='1' id='e7f44034'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='auth_alg' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1100' column='1'/>
         </data-member>
@@ -95840,12 +95956,12 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1104' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1106' column='1' id='e7f44034'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1106' column='1' id='e7f44035'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='reason_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1107' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1109' column='1' id='e7f44035'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1109' column='1' id='e7f44036'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1110' column='1'/>
         </data-member>
@@ -95856,7 +95972,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1113' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1115' column='1' id='e7f44036'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1115' column='1' id='e7f44037'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1116' column='1'/>
         </data-member>
@@ -95870,7 +95986,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1120' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1122' column='1' id='e7f44037'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1122' column='1' id='e7f44038'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1123' column='1'/>
         </data-member>
@@ -95881,7 +95997,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1125' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='80' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1127' column='1' id='e7f44038'>
+      <class-decl name='__anonymous_struct__' size-in-bits='80' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1127' column='1' id='e7f44039'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='capab_info' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1128' column='1'/>
         </data-member>
@@ -95895,7 +96011,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1132' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1137' column='1' id='e7f44039'>
+      <class-decl name='__anonymous_struct__' size-in-bits='96' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1137' column='1' id='e7f4403a'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='timestamp' type-id='a30e8d1f' visibility='default' filepath='include/linux/ieee80211.h' line='1138' column='1'/>
         </data-member>
@@ -95909,12 +96025,12 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1143' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1145' column='1' id='e7f4403a'>
+      <class-decl name='__anonymous_struct__' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1145' column='1' id='e7f4403b'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1147' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='208' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1157' column='1' id='e7f4403b'>
+      <class-decl name='__anonymous_struct__' size-in-bits='208' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1157' column='1' id='e7f4403c'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='category' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1158' column='1'/>
         </data-member>
@@ -95922,7 +96038,7 @@
           <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1255' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403c'>
+      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1160' column='1' id='e7f4403d'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1161' column='1'/>
         </data-member>
@@ -95936,7 +96052,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1164' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='8' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1166' column='1' id='e7f4403d'>
+      <class-decl name='__anonymous_struct__' size-in-bits='8' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1166' column='1' id='e7f4403e'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1167' column='1'/>
         </data-member>
@@ -95944,7 +96060,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1168' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1170' column='1' id='e7f4403e'>
+      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1170' column='1' id='e7f4403f'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1171' column='1'/>
         </data-member>
@@ -95955,7 +96071,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1173' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1175' column='1' id='e7f4403f'>
+      <class-decl name='__anonymous_struct__' size-in-bits='56' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1175' column='1' id='e7f44040'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1176' column='1'/>
         </data-member>
@@ -95972,7 +96088,7 @@
           <var-decl name='msr_elem' type-id='1981efe5' visibility='default' filepath='include/linux/ieee80211.h' line='1180' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1182' column='1' id='e7f44040'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1182' column='1' id='e7f44041'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1183' column='1'/>
         </data-member>
@@ -95992,7 +96108,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1189' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1191' column='1' id='e7f44041'>
+      <class-decl name='__anonymous_struct__' size-in-bits='64' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1191' column='1' id='e7f44042'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1192' column='1'/>
         </data-member>
@@ -96009,7 +96125,7 @@
           <var-decl name='timeout' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1196' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1198' column='1' id='e7f44042'>
+      <class-decl name='__anonymous_struct__' size-in-bits='40' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1198' column='1' id='e7f44043'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1199' column='1'/>
         </data-member>
@@ -96020,7 +96136,7 @@
           <var-decl name='reason_code' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1201' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1211' column='1' id='e7f44043'>
+      <class-decl name='__anonymous_struct__' size-in-bits='24' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1211' column='1' id='e7f44044'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1212' column='1'/>
         </data-member>
@@ -96028,7 +96144,7 @@
           <var-decl name='trans_id' type-id='cf114704' visibility='default' filepath='include/linux/ieee80211.h' line='1213' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1215' column='1' id='e7f44044'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1215' column='1' id='e7f44045'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1216' column='1'/>
         </data-member>
@@ -96036,7 +96152,7 @@
           <var-decl name='smps_control' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1217' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1219' column='1' id='e7f44045'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1219' column='1' id='e7f44046'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1220' column='1'/>
         </data-member>
@@ -96044,7 +96160,7 @@
           <var-decl name='chanwidth' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1221' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1223' column='1' id='e7f44046'>
+      <class-decl name='__anonymous_struct__' size-in-bits='32' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1223' column='1' id='e7f44047'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1224' column='1'/>
         </data-member>
@@ -96058,7 +96174,7 @@
           <var-decl name='variable' type-id='29c3368c' visibility='default' filepath='include/linux/ieee80211.h' line='1227' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1229' column='1' id='e7f44047'>
+      <class-decl name='__anonymous_struct__' size-in-bits='16' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1229' column='1' id='e7f44048'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1230' column='1'/>
         </data-member>
@@ -96066,7 +96182,7 @@
           <var-decl name='operating_mode' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1231' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='200' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1233' column='1' id='e7f44048'>
+      <class-decl name='__anonymous_struct__' size-in-bits='200' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1233' column='1' id='e7f44049'>
         <data-member access='public' layout-offset-in-bits='0'>
           <var-decl name='action_code' type-id='f9b06939' visibility='default' filepath='include/linux/ieee80211.h' line='1234' column='1'/>
         </data-member>
@@ -96077,7 +96193,7 @@
           <var-decl name='position' type-id='0d8415b5' visibility='default' filepath='include/linux/ieee80211.h' line='1236' column='1'/>
         </data-member>
       </class-decl>
-      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1238' column='1' id='e7f44049'>
+      <class-decl name='__anonymous_struct__' size-in-bits='48' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1238' column='1' id='e7f4404a'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='152' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/linux/ieee80211.h' line='1245' column='1' id='e7f4404b'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1024' column='1' id='e7f4404c'>
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+      <class-decl name='__anonymous_struct__' size-in-bits='192' is-struct='yes' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1029' column='1' id='e7f4404d'>
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@@ -96509,7 +96625,7 @@
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+      <typedef-decl name='vm_fault_t' type-id='f0981eeb' filepath='include/linux/mm_types.h' line='820' column='1' id='e9265215'/>
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@@ -97951,6 +98067,41 @@
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+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='max_seq' type-id='7359adad' visibility='default' filepath='include/linux/mmzone.h' line='376' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
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+        </data-member>
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+          <var-decl name='timestamps' type-id='f46d9f4d' visibility='default' filepath='include/linux/mmzone.h' line='380' column='1'/>
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+        </data-member>
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+        </data-member>
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+        </data-member>
+        <data-member access='public' layout-offset-in-bits='5568'>
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+        </data-member>
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+          <var-decl name='protected' type-id='d2730d39' visibility='default' filepath='include/linux/mmzone.h' line='390' column='1'/>
+        </data-member>
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+        </data-member>
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+        </data-member>
+        <data-member access='public' layout-offset-in-bits='7488'>
+          <var-decl name='enabled' type-id='b50a4934' visibility='default' filepath='include/linux/mmzone.h' line='395' column='1'/>
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@@ -99616,6 +99767,29 @@
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+        </data-member>
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+        </data-member>
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+        </data-member>
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+          <var-decl name='wait' type-id='cff07063' visibility='default' filepath='include/linux/mmzone.h' line='422' column='1'/>
+        </data-member>
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+          <var-decl name='filters' type-id='dc94a8df' visibility='default' filepath='include/linux/mmzone.h' line='424' column='1'/>
+        </data-member>
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+          <var-decl name='stats' type-id='564ef35c' visibility='default' filepath='include/linux/mmzone.h' line='426' column='1'/>
+        </data-member>
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+          <var-decl name='nr_walkers' type-id='95e97e5e' visibility='default' filepath='include/linux/mmzone.h' line='428' column='1'/>
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-          <var-decl name='' type-id='ac5ab5fc' visibility='default' filepath='include/uapi/scsi/scsi_bsg_ufs.h' line='75' column='1'/>
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+          <var-decl name='ctx' type-id='9d25db30' visibility='default' filepath='include/linux/mm_types.h' line='299' column='1'/>
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       </class-decl>
       <pointer-type-def type-id='0457ac44' size-in-bits='64' id='fddad99e'/>
@@ -104430,13 +104604,13 @@
           <var-decl name='proc_iops' type-id='de2c232c' visibility='default' filepath='fs/proc/internal.h' line='41' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='384'>
-          <var-decl name='' type-id='ac5ab604' visibility='default' filepath='fs/proc/internal.h' line='42' column='1'/>
+          <var-decl name='' type-id='ac5ab603' visibility='default' filepath='fs/proc/internal.h' line='42' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='448'>
           <var-decl name='proc_dops' type-id='1ee57353' visibility='default' filepath='fs/proc/internal.h' line='46' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='512'>
-          <var-decl name='' type-id='ac5ab605' visibility='default' filepath='fs/proc/internal.h' line='47' column='1'/>
+          <var-decl name='' type-id='ac5ab604' visibility='default' filepath='fs/proc/internal.h' line='47' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='576'>
           <var-decl name='write' type-id='7c2b18ab' visibility='default' filepath='fs/proc/internal.h' line='51' column='1'/>
@@ -104774,7 +104948,7 @@
           <var-decl name='avg' type-id='629c8d83' visibility='default' filepath='kernel/sched/sched.h' line='564' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='1536'>
-          <var-decl name='removed' type-id='e7f43feb' visibility='default' filepath='kernel/sched/sched.h' line='574' column='1'/>
+          <var-decl name='removed' type-id='e7f43fec' visibility='default' filepath='kernel/sched/sched.h' line='574' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='2048'>
           <var-decl name='tg_load_avg_contrib' type-id='7359adad' visibility='default' filepath='kernel/sched/sched.h' line='577' column='1'/>
@@ -105661,10 +105835,10 @@
         <parameter type-id='f0981eeb' name='order' filepath='mm/page_alloc.c' line='5194' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='__get_task_comm' mangled-name='__get_task_comm' filepath='fs/exec.c' line='1212' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_task_comm'>
-        <parameter type-id='26a90f95' name='buf' filepath='fs/exec.c' line='1212' column='1'/>
-        <parameter type-id='b59d7dce' name='buf_size' filepath='fs/exec.c' line='1212' column='1'/>
-        <parameter type-id='f23e2572' name='tsk' filepath='fs/exec.c' line='1212' column='1'/>
+      <function-decl name='__get_task_comm' mangled-name='__get_task_comm' filepath='fs/exec.c' line='1214' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__get_task_comm'>
+        <parameter type-id='26a90f95' name='buf' filepath='fs/exec.c' line='1214' column='1'/>
+        <parameter type-id='b59d7dce' name='buf_size' filepath='fs/exec.c' line='1214' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='fs/exec.c' line='1214' column='1'/>
         <return type-id='26a90f95'/>
       </function-decl>
       <function-decl name='__hci_cmd_sync' mangled-name='__hci_cmd_sync' filepath='net/bluetooth/hci_request.c' line='184' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__hci_cmd_sync'>
@@ -106086,8 +106260,8 @@
         <parameter type-id='10cfb911' name='cred' filepath='kernel/cred.c' line='134' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='__put_page' mangled-name='__put_page' filepath='mm/swap.c' line='118' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_page'>
-        <parameter type-id='02f11ed4' name='page' filepath='mm/swap.c' line='118' column='1'/>
+      <function-decl name='__put_page' mangled-name='__put_page' filepath='mm/swap.c' line='117' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_page'>
+        <parameter type-id='02f11ed4' name='page' filepath='mm/swap.c' line='117' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='__put_task_struct' mangled-name='__put_task_struct' filepath='kernel/fork.c' line='767' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__put_task_struct'>
@@ -107640,8 +107814,8 @@
         <parameter type-id='eaa32e2f' name='key' filepath='kernel/sched/wait.c' line='404' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='available_idle_cpu' mangled-name='available_idle_cpu' filepath='kernel/sched/core.c' line='5383' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='available_idle_cpu'>
-        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/core.c' line='5383' column='1'/>
+      <function-decl name='available_idle_cpu' mangled-name='available_idle_cpu' filepath='kernel/sched/core.c' line='5384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='available_idle_cpu'>
+        <parameter type-id='95e97e5e' name='cpu' filepath='kernel/sched/core.c' line='5384' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='backlight_device_set_brightness' mangled-name='backlight_device_set_brightness' filepath='drivers/video/backlight/backlight.c' line='230' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='backlight_device_set_brightness'>
@@ -109109,9 +109283,9 @@
         <parameter type-id='389faaf7' name='x' filepath='kernel/sched/completion.c' line='57' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='complete_and_exit' mangled-name='complete_and_exit' filepath='kernel/exit.c' line='868' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete_and_exit'>
-        <parameter type-id='389faaf7' name='comp' filepath='kernel/exit.c' line='868' column='1'/>
-        <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='868' column='1'/>
+      <function-decl name='complete_and_exit' mangled-name='complete_and_exit' filepath='kernel/exit.c' line='869' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='complete_and_exit'>
+        <parameter type-id='389faaf7' name='comp' filepath='kernel/exit.c' line='869' column='1'/>
+        <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='869' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='completion_done' mangled-name='completion_done' filepath='kernel/sched/completion.c' line='315' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='completion_done'>
@@ -111729,8 +111903,8 @@
         <parameter type-id='572fbdca' name='tty' filepath='drivers/tty/tty_io.c' line='3042' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='do_exit' mangled-name='do_exit' filepath='kernel/exit.c' line='715' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_exit'>
-        <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='715' column='1'/>
+      <function-decl name='do_exit' mangled-name='do_exit' filepath='kernel/exit.c' line='716' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_exit'>
+        <parameter type-id='bd54fe1a' name='code' filepath='kernel/exit.c' line='716' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='do_wait_intr_irq' mangled-name='do_wait_intr_irq' filepath='kernel/sched/wait.c' line='351' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='do_wait_intr_irq'>
@@ -115408,11 +115582,11 @@
         <parameter type-id='7359adad' name='end' filepath='mm/truncate.c' line='630' column='1'/>
         <return type-id='7359adad'/>
       </function-decl>
-      <function-decl name='io_schedule' mangled-name='io_schedule' filepath='kernel/sched/core.c' line='6555' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='io_schedule'>
+      <function-decl name='io_schedule' mangled-name='io_schedule' filepath='kernel/sched/core.c' line='6556' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='io_schedule'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='io_schedule_timeout' mangled-name='io_schedule_timeout' filepath='kernel/sched/core.c' line='6542' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='io_schedule_timeout'>
-        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/sched/core.c' line='6542' column='1'/>
+      <function-decl name='io_schedule_timeout' mangled-name='io_schedule_timeout' filepath='kernel/sched/core.c' line='6543' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='io_schedule_timeout'>
+        <parameter type-id='bd54fe1a' name='timeout' filepath='kernel/sched/core.c' line='6543' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <var-decl name='iomem_resource' type-id='5218160d' mangled-name='iomem_resource' visibility='default' filepath='kernel/resource.c' line='38' column='1' elf-symbol-id='iomem_resource'/>
@@ -115907,7 +116081,7 @@
         <parameter type-id='95e97e5e' name='flags' filepath='net/socket.c' line='3462' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <var-decl name='kernel_cpustat' type-id='7b5f27b3' mangled-name='kernel_cpustat' visibility='default' filepath='kernel/sched/core.c' line='4159' column='1' elf-symbol-id='kernel_cpustat'/>
+      <var-decl name='kernel_cpustat' type-id='7b5f27b3' mangled-name='kernel_cpustat' visibility='default' filepath='kernel/sched/core.c' line='4160' column='1' elf-symbol-id='kernel_cpustat'/>
       <function-decl name='kernel_getsockname' mangled-name='kernel_getsockname' filepath='net/socket.c' line='3477' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kernel_getsockname'>
         <parameter type-id='13103032' name='sock' filepath='net/socket.c' line='3477' column='1'/>
         <parameter type-id='5c0abad8' name='addr' filepath='net/socket.c' line='3477' column='1'/>
@@ -116104,7 +116278,7 @@
         <parameter type-id='eaa32e2f' name='objp' filepath='mm/slab_common.c' line='1174' column='1'/>
         <return type-id='b59d7dce'/>
       </function-decl>
-      <var-decl name='kstat' type-id='153750ef' mangled-name='kstat' visibility='default' filepath='kernel/sched/core.c' line='4158' column='1' elf-symbol-id='kstat'/>
+      <var-decl name='kstat' type-id='153750ef' mangled-name='kstat' visibility='default' filepath='kernel/sched/core.c' line='4159' column='1' elf-symbol-id='kstat'/>
       <function-decl name='kstrdup' mangled-name='kstrdup' filepath='mm/util.c' line='54' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='kstrdup'>
         <parameter type-id='80f4b756' name='s' filepath='mm/util.c' line='54' column='1'/>
         <parameter type-id='3eb7c31c' name='gfp' filepath='mm/util.c' line='54' column='1'/>
@@ -116673,10 +116847,10 @@
         <parameter type-id='c63257f7' name='misc' filepath='drivers/char/misc.c' line='173' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='mm_trace_rss_stat' mangled-name='mm_trace_rss_stat' filepath='mm/memory.c' line='175' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_trace_rss_stat'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/memory.c' line='175' column='1'/>
-        <parameter type-id='95e97e5e' name='member' filepath='mm/memory.c' line='175' column='1'/>
-        <parameter type-id='bd54fe1a' name='count' filepath='mm/memory.c' line='175' column='1'/>
+      <function-decl name='mm_trace_rss_stat' mangled-name='mm_trace_rss_stat' filepath='mm/memory.c' line='163' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mm_trace_rss_stat'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/memory.c' line='163' column='1'/>
+        <parameter type-id='95e97e5e' name='member' filepath='mm/memory.c' line='163' column='1'/>
+        <parameter type-id='bd54fe1a' name='count' filepath='mm/memory.c' line='163' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='mmc_add_host' mangled-name='mmc_add_host' filepath='drivers/mmc/core/host.c' line='525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='mmc_add_host'>
@@ -118838,10 +119012,10 @@
       <function-decl name='prandom_u32' mangled-name='prandom_u32' filepath='lib/random32.c' line='384' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prandom_u32'>
         <return type-id='19c2251e'/>
       </function-decl>
-      <function-decl name='preempt_schedule' mangled-name='preempt_schedule' filepath='kernel/sched/core.c' line='4971' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule'>
+      <function-decl name='preempt_schedule' mangled-name='preempt_schedule' filepath='kernel/sched/core.c' line='4972' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule'>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='preempt_schedule_notrace' mangled-name='preempt_schedule_notrace' filepath='kernel/sched/core.c' line='4999' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule_notrace'>
+      <function-decl name='preempt_schedule_notrace' mangled-name='preempt_schedule_notrace' filepath='kernel/sched/core.c' line='5000' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='preempt_schedule_notrace'>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='prepare_to_wait' mangled-name='prepare_to_wait' filepath='kernel/sched/wait.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='prepare_to_wait'>
@@ -119321,8 +119495,8 @@
         <parameter type-id='d504f73d' name='nb' filepath='kernel/reboot.c' line='183' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='register_shrinker' mangled-name='register_shrinker' filepath='mm/vmscan.c' line='410' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_shrinker'>
-        <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='410' column='1'/>
+      <function-decl name='register_shrinker' mangled-name='register_shrinker' filepath='mm/vmscan.c' line='421' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_shrinker'>
+        <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='421' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='register_syscore_ops' mangled-name='register_syscore_ops' filepath='drivers/base/syscore.c' line='22' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='register_syscore_ops'>
@@ -119627,12 +119801,12 @@
         <parameter type-id='f772df6d' name='sk' filepath='net/core/sock.c' line='3084' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='remap_pfn_range' mangled-name='remap_pfn_range' filepath='mm/memory.c' line='2311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_pfn_range'>
-        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2311' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2311' column='1'/>
-        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2312' column='1'/>
-        <parameter type-id='7359adad' name='size' filepath='mm/memory.c' line='2312' column='1'/>
-        <parameter type-id='2e2dcbd3' name='prot' filepath='mm/memory.c' line='2312' column='1'/>
+      <function-decl name='remap_pfn_range' mangled-name='remap_pfn_range' filepath='mm/memory.c' line='2299' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_pfn_range'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2299' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2299' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2300' column='1'/>
+        <parameter type-id='7359adad' name='size' filepath='mm/memory.c' line='2300' column='1'/>
+        <parameter type-id='2e2dcbd3' name='prot' filepath='mm/memory.c' line='2300' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='remap_vmalloc_range' mangled-name='remap_vmalloc_range' filepath='mm/vmalloc.c' line='3151' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='remap_vmalloc_range'>
@@ -119780,7 +119954,7 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/base/core.c' line='3856' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <var-decl name='root_task_group' type-id='2d863538' mangled-name='root_task_group' visibility='default' filepath='kernel/sched/core.c' line='7433' column='1' elf-symbol-id='root_task_group'/>
+      <var-decl name='root_task_group' type-id='2d863538' mangled-name='root_task_group' visibility='default' filepath='kernel/sched/core.c' line='7434' column='1' elf-symbol-id='root_task_group'/>
       <function-decl name='round_jiffies_up' mangled-name='round_jiffies_up' filepath='kernel/time/timer.c' line='461' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='round_jiffies_up'>
         <parameter type-id='7359adad' name='j' filepath='kernel/time/timer.c' line='461' column='1'/>
         <return type-id='7359adad'/>
@@ -119969,29 +120143,29 @@
         <return type-id='0d77e947'/>
       </function-decl>
       <var-decl name='sched_feat_keys' type-id='9cc39ce1' mangled-name='sched_feat_keys' visibility='default' filepath='kernel/sched/debug.c' line='80' column='1' elf-symbol-id='sched_feat_keys'/>
-      <function-decl name='sched_set_fifo' mangled-name='sched_set_fifo' filepath='kernel/sched/core.c' line='5816' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_set_fifo'>
-        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5816' column='1'/>
+      <function-decl name='sched_set_fifo' mangled-name='sched_set_fifo' filepath='kernel/sched/core.c' line='5817' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_set_fifo'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5817' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='sched_setattr_nocheck' mangled-name='sched_setattr_nocheck' filepath='kernel/sched/core.c' line='5772' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setattr_nocheck'>
-        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5772' column='1'/>
-        <parameter type-id='8abbb6c3' name='attr' filepath='kernel/sched/core.c' line='5772' column='1'/>
+      <function-decl name='sched_setattr_nocheck' mangled-name='sched_setattr_nocheck' filepath='kernel/sched/core.c' line='5773' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setattr_nocheck'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5773' column='1'/>
+        <parameter type-id='8abbb6c3' name='attr' filepath='kernel/sched/core.c' line='5773' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sched_setscheduler' mangled-name='sched_setscheduler' filepath='kernel/sched/core.c' line='5759' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler'>
-        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5759' column='1'/>
-        <parameter type-id='95e97e5e' name='policy' filepath='kernel/sched/core.c' line='5759' column='1'/>
-        <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5760' column='1'/>
+      <function-decl name='sched_setscheduler' mangled-name='sched_setscheduler' filepath='kernel/sched/core.c' line='5760' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5760' column='1'/>
+        <parameter type-id='95e97e5e' name='policy' filepath='kernel/sched/core.c' line='5760' column='1'/>
+        <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5761' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sched_setscheduler_nocheck' mangled-name='sched_setscheduler_nocheck' filepath='kernel/sched/core.c' line='5791' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler_nocheck'>
-        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5791' column='1'/>
-        <parameter type-id='95e97e5e' name='policy' filepath='kernel/sched/core.c' line='5791' column='1'/>
-        <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5792' column='1'/>
+      <function-decl name='sched_setscheduler_nocheck' mangled-name='sched_setscheduler_nocheck' filepath='kernel/sched/core.c' line='5792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_setscheduler_nocheck'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5792' column='1'/>
+        <parameter type-id='95e97e5e' name='policy' filepath='kernel/sched/core.c' line='5792' column='1'/>
+        <parameter type-id='36fca399' name='param' filepath='kernel/sched/core.c' line='5793' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='sched_show_task' mangled-name='sched_show_task' filepath='kernel/sched/core.c' line='6690' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_show_task'>
-        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='6690' column='1'/>
+      <function-decl name='sched_show_task' mangled-name='sched_show_task' filepath='kernel/sched/core.c' line='6691' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_show_task'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='6691' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='sched_trace_cfs_rq_avg' mangled-name='sched_trace_cfs_rq_avg' filepath='kernel/sched/fair.c' line='11537' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sched_trace_cfs_rq_avg'>
@@ -120029,7 +120203,7 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='sched_uclamp_used' type-id='237c0d27' mangled-name='sched_uclamp_used' visibility='default' filepath='kernel/sched/core.c' line='966' column='1' elf-symbol-id='sched_uclamp_used'/>
-      <function-decl name='schedule' mangled-name='schedule' filepath='kernel/sched/core.c' line='4867' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule'>
+      <function-decl name='schedule' mangled-name='schedule' filepath='kernel/sched/core.c' line='4868' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule'>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='schedule_timeout' mangled-name='schedule_timeout' filepath='kernel/time/timer.c' line='1841' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='schedule_timeout'>
@@ -120455,9 +120629,9 @@
         <parameter type-id='02f11ed4' name='page' filepath='mm/page-writeback.c' line='2606' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='set_user_nice' mangled-name='set_user_nice' filepath='kernel/sched/core.c' line='5236' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_user_nice'>
-        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5236' column='1'/>
-        <parameter type-id='bd54fe1a' name='nice' filepath='kernel/sched/core.c' line='5236' column='1'/>
+      <function-decl name='set_user_nice' mangled-name='set_user_nice' filepath='kernel/sched/core.c' line='5237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='set_user_nice'>
+        <parameter type-id='f23e2572' name='p' filepath='kernel/sched/core.c' line='5237' column='1'/>
+        <parameter type-id='bd54fe1a' name='nice' filepath='kernel/sched/core.c' line='5237' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='sg_alloc_table' mangled-name='sg_alloc_table' filepath='lib/scatterlist.c' line='355' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='sg_alloc_table'>
@@ -122678,41 +122852,41 @@
         <parameter type-id='78a133c2' name='dst' filepath='net/ipv4/udp.c' line='807' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ufshcd_bkops_ctrl' mangled-name='ufshcd_bkops_ctrl' filepath='drivers/scsi/ufs/ufshcd.c' line='5626' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_bkops_ctrl'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='5626' column='1'/>
-        <parameter type-id='462d2624' name='status' filepath='drivers/scsi/ufs/ufshcd.c' line='5627' column='1'/>
+      <function-decl name='ufshcd_bkops_ctrl' mangled-name='ufshcd_bkops_ctrl' filepath='drivers/scsi/ufs/ufshcd.c' line='5674' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_bkops_ctrl'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='5674' column='1'/>
+        <parameter type-id='462d2624' name='status' filepath='drivers/scsi/ufs/ufshcd.c' line='5675' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_dme_configure_adapt' mangled-name='ufshcd_dme_configure_adapt' filepath='drivers/scsi/ufs/ufshcd.c' line='3821' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_configure_adapt'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3821' column='1'/>
-        <parameter type-id='95e97e5e' name='agreed_gear' filepath='drivers/scsi/ufs/ufshcd.c' line='3822' column='1'/>
-        <parameter type-id='95e97e5e' name='adapt_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3823' column='1'/>
+      <function-decl name='ufshcd_dme_configure_adapt' mangled-name='ufshcd_dme_configure_adapt' filepath='drivers/scsi/ufs/ufshcd.c' line='3863' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_configure_adapt'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3863' column='1'/>
+        <parameter type-id='95e97e5e' name='agreed_gear' filepath='drivers/scsi/ufs/ufshcd.c' line='3864' column='1'/>
+        <parameter type-id='95e97e5e' name='adapt_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3865' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_dme_get_attr' mangled-name='ufshcd_dme_get_attr' filepath='drivers/scsi/ufs/ufshcd.c' line='3945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_get_attr'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3945' column='1'/>
-        <parameter type-id='19c2251e' name='attr_sel' filepath='drivers/scsi/ufs/ufshcd.c' line='3945' column='1'/>
-        <parameter type-id='f9409001' name='mib_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3946' column='1'/>
-        <parameter type-id='f9b06939' name='peer' filepath='drivers/scsi/ufs/ufshcd.c' line='3946' column='1'/>
+      <function-decl name='ufshcd_dme_get_attr' mangled-name='ufshcd_dme_get_attr' filepath='drivers/scsi/ufs/ufshcd.c' line='3987' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_get_attr'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3987' column='1'/>
+        <parameter type-id='19c2251e' name='attr_sel' filepath='drivers/scsi/ufs/ufshcd.c' line='3987' column='1'/>
+        <parameter type-id='f9409001' name='mib_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3988' column='1'/>
+        <parameter type-id='f9b06939' name='peer' filepath='drivers/scsi/ufs/ufshcd.c' line='3988' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_dme_set_attr' mangled-name='ufshcd_dme_set_attr' filepath='drivers/scsi/ufs/ufshcd.c' line='3901' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_set_attr'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3901' column='1'/>
-        <parameter type-id='19c2251e' name='attr_sel' filepath='drivers/scsi/ufs/ufshcd.c' line='3901' column='1'/>
-        <parameter type-id='f9b06939' name='attr_set' filepath='drivers/scsi/ufs/ufshcd.c' line='3902' column='1'/>
-        <parameter type-id='19c2251e' name='mib_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3902' column='1'/>
-        <parameter type-id='f9b06939' name='peer' filepath='drivers/scsi/ufs/ufshcd.c' line='3902' column='1'/>
+      <function-decl name='ufshcd_dme_set_attr' mangled-name='ufshcd_dme_set_attr' filepath='drivers/scsi/ufs/ufshcd.c' line='3943' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dme_set_attr'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3943' column='1'/>
+        <parameter type-id='19c2251e' name='attr_sel' filepath='drivers/scsi/ufs/ufshcd.c' line='3943' column='1'/>
+        <parameter type-id='f9b06939' name='attr_set' filepath='drivers/scsi/ufs/ufshcd.c' line='3944' column='1'/>
+        <parameter type-id='19c2251e' name='mib_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3944' column='1'/>
+        <parameter type-id='f9b06939' name='peer' filepath='drivers/scsi/ufs/ufshcd.c' line='3944' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_dump_regs' mangled-name='ufshcd_dump_regs' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dump_regs'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1'/>
-        <parameter type-id='b59d7dce' name='offset' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1'/>
-        <parameter type-id='b59d7dce' name='len' filepath='drivers/scsi/ufs/ufshcd.c' line='108' column='1'/>
-        <parameter type-id='80f4b756' name='prefix' filepath='drivers/scsi/ufs/ufshcd.c' line='109' column='1'/>
+      <function-decl name='ufshcd_dump_regs' mangled-name='ufshcd_dump_regs' filepath='drivers/scsi/ufs/ufshcd.c' line='106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_dump_regs'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='106' column='1'/>
+        <parameter type-id='b59d7dce' name='offset' filepath='drivers/scsi/ufs/ufshcd.c' line='106' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='drivers/scsi/ufs/ufshcd.c' line='106' column='1'/>
+        <parameter type-id='80f4b756' name='prefix' filepath='drivers/scsi/ufs/ufshcd.c' line='107' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_get_local_unipro_ver' mangled-name='ufshcd_get_local_unipro_ver' filepath='drivers/scsi/ufs/ufshcd.c' line='936' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_get_local_unipro_ver'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='936' column='1'/>
+      <function-decl name='ufshcd_get_local_unipro_ver' mangled-name='ufshcd_get_local_unipro_ver' filepath='drivers/scsi/ufs/ufshcd.c' line='940' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_get_local_unipro_ver'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='940' column='1'/>
         <return type-id='19c2251e'/>
       </function-decl>
       <function-decl name='ufshcd_get_pwr_dev_param' mangled-name='ufshcd_get_pwr_dev_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='210' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_get_pwr_dev_param'>
@@ -122721,9 +122895,9 @@
         <parameter type-id='35f4156d' name='agreed_pwr' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='212' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_hold' mangled-name='ufshcd_hold' filepath='drivers/scsi/ufs/ufshcd.c' line='1687' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_hold'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='1687' column='1'/>
-        <parameter type-id='b50a4934' name='async' filepath='drivers/scsi/ufs/ufshcd.c' line='1687' column='1'/>
+      <function-decl name='ufshcd_hold' mangled-name='ufshcd_hold' filepath='drivers/scsi/ufs/ufshcd.c' line='1729' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_hold'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='1729' column='1'/>
+        <parameter type-id='b50a4934' name='async' filepath='drivers/scsi/ufs/ufshcd.c' line='1729' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='ufshcd_init_pwr_dev_param' mangled-name='ufshcd_init_pwr_dev_param' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='298' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_init_pwr_dev_param'>
@@ -122739,74 +122913,74 @@
         <parameter type-id='db362995' name='pdev' filepath='drivers/scsi/ufs/ufshcd-pltfrm.c' line='180' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ufshcd_query_attr_retry' mangled-name='ufshcd_query_attr_retry' filepath='drivers/scsi/ufs/ufshcd.c' line='3234' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_query_attr_retry'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3234' column='1'/>
-        <parameter type-id='5f757f13' name='opcode' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
-        <parameter type-id='75eb1735' name='idn' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
-        <parameter type-id='f9b06939' name='index' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
-        <parameter type-id='f9b06939' name='selector' filepath='drivers/scsi/ufs/ufshcd.c' line='3235' column='1'/>
-        <parameter type-id='f9409001' name='attr_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3236' column='1'/>
+      <function-decl name='ufshcd_query_attr_retry' mangled-name='ufshcd_query_attr_retry' filepath='drivers/scsi/ufs/ufshcd.c' line='3276' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_query_attr_retry'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3276' column='1'/>
+        <parameter type-id='5f757f13' name='opcode' filepath='drivers/scsi/ufs/ufshcd.c' line='3277' column='1'/>
+        <parameter type-id='75eb1735' name='idn' filepath='drivers/scsi/ufs/ufshcd.c' line='3277' column='1'/>
+        <parameter type-id='f9b06939' name='index' filepath='drivers/scsi/ufs/ufshcd.c' line='3277' column='1'/>
+        <parameter type-id='f9b06939' name='selector' filepath='drivers/scsi/ufs/ufshcd.c' line='3277' column='1'/>
+        <parameter type-id='f9409001' name='attr_val' filepath='drivers/scsi/ufs/ufshcd.c' line='3278' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_query_flag_retry' mangled-name='ufshcd_query_flag_retry' filepath='drivers/scsi/ufs/ufshcd.c' line='3064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_query_flag_retry'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3064' column='1'/>
-        <parameter type-id='5f757f13' name='opcode' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
-        <parameter type-id='92ace17c' name='idn' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
-        <parameter type-id='f9b06939' name='index' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
-        <parameter type-id='d8e6b335' name='flag_res' filepath='drivers/scsi/ufs/ufshcd.c' line='3065' column='1'/>
+      <function-decl name='ufshcd_query_flag_retry' mangled-name='ufshcd_query_flag_retry' filepath='drivers/scsi/ufs/ufshcd.c' line='3106' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_query_flag_retry'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3106' column='1'/>
+        <parameter type-id='5f757f13' name='opcode' filepath='drivers/scsi/ufs/ufshcd.c' line='3107' column='1'/>
+        <parameter type-id='92ace17c' name='idn' filepath='drivers/scsi/ufs/ufshcd.c' line='3107' column='1'/>
+        <parameter type-id='f9b06939' name='index' filepath='drivers/scsi/ufs/ufshcd.c' line='3107' column='1'/>
+        <parameter type-id='d8e6b335' name='flag_res' filepath='drivers/scsi/ufs/ufshcd.c' line='3107' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_read_desc_param' mangled-name='ufshcd_read_desc_param' filepath='drivers/scsi/ufs/ufshcd.c' line='3397' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_read_desc_param'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3397' column='1'/>
-        <parameter type-id='32c9d5cb' name='desc_id' filepath='drivers/scsi/ufs/ufshcd.c' line='3398' column='1'/>
-        <parameter type-id='95e97e5e' name='desc_index' filepath='drivers/scsi/ufs/ufshcd.c' line='3399' column='1'/>
-        <parameter type-id='f9b06939' name='param_offset' filepath='drivers/scsi/ufs/ufshcd.c' line='3400' column='1'/>
-        <parameter type-id='8bff8096' name='param_read_buf' filepath='drivers/scsi/ufs/ufshcd.c' line='3401' column='1'/>
-        <parameter type-id='f9b06939' name='param_size' filepath='drivers/scsi/ufs/ufshcd.c' line='3402' column='1'/>
+      <function-decl name='ufshcd_read_desc_param' mangled-name='ufshcd_read_desc_param' filepath='drivers/scsi/ufs/ufshcd.c' line='3439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_read_desc_param'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='3439' column='1'/>
+        <parameter type-id='32c9d5cb' name='desc_id' filepath='drivers/scsi/ufs/ufshcd.c' line='3440' column='1'/>
+        <parameter type-id='95e97e5e' name='desc_index' filepath='drivers/scsi/ufs/ufshcd.c' line='3441' column='1'/>
+        <parameter type-id='f9b06939' name='param_offset' filepath='drivers/scsi/ufs/ufshcd.c' line='3442' column='1'/>
+        <parameter type-id='8bff8096' name='param_read_buf' filepath='drivers/scsi/ufs/ufshcd.c' line='3443' column='1'/>
+        <parameter type-id='f9b06939' name='param_size' filepath='drivers/scsi/ufs/ufshcd.c' line='3444' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_release' mangled-name='ufshcd_release' filepath='drivers/scsi/ufs/ufshcd.c' line='1866' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_release'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='1866' column='1'/>
+      <function-decl name='ufshcd_release' mangled-name='ufshcd_release' filepath='drivers/scsi/ufs/ufshcd.c' line='1908' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_release'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='1908' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ufshcd_remove' mangled-name='ufshcd_remove' filepath='drivers/scsi/ufs/ufshcd.c' line='9459' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_remove'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='9459' column='1'/>
+      <function-decl name='ufshcd_remove' mangled-name='ufshcd_remove' filepath='drivers/scsi/ufs/ufshcd.c' line='9568' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_remove'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='9568' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ufshcd_resume_complete' mangled-name='ufshcd_resume_complete' filepath='drivers/scsi/ufs/ufshcd.c' line='9777' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_resume_complete'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9777' column='1'/>
+      <function-decl name='ufshcd_resume_complete' mangled-name='ufshcd_resume_complete' filepath='drivers/scsi/ufs/ufshcd.c' line='9886' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_resume_complete'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9886' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='ufshcd_runtime_resume' mangled-name='ufshcd_runtime_resume' filepath='drivers/scsi/ufs/ufshcd.c' line='9414' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_runtime_resume'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9414' column='1'/>
+      <function-decl name='ufshcd_runtime_resume' mangled-name='ufshcd_runtime_resume' filepath='drivers/scsi/ufs/ufshcd.c' line='9523' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_runtime_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9523' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_runtime_suspend' mangled-name='ufshcd_runtime_suspend' filepath='drivers/scsi/ufs/ufshcd.c' line='9389' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_runtime_suspend'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9389' column='1'/>
+      <function-decl name='ufshcd_runtime_suspend' mangled-name='ufshcd_runtime_suspend' filepath='drivers/scsi/ufs/ufshcd.c' line='9498' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_runtime_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9498' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_shutdown' mangled-name='ufshcd_shutdown' filepath='drivers/scsi/ufs/ufshcd.c' line='9439' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_shutdown'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='9439' column='1'/>
+      <function-decl name='ufshcd_shutdown' mangled-name='ufshcd_shutdown' filepath='drivers/scsi/ufs/ufshcd.c' line='9548' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_shutdown'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='9548' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_suspend_prepare' mangled-name='ufshcd_suspend_prepare' filepath='drivers/scsi/ufs/ufshcd.c' line='9840' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_suspend_prepare'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9840' column='1'/>
+      <function-decl name='ufshcd_suspend_prepare' mangled-name='ufshcd_suspend_prepare' filepath='drivers/scsi/ufs/ufshcd.c' line='9949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_suspend_prepare'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9949' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_system_resume' mangled-name='ufshcd_system_resume' filepath='drivers/scsi/ufs/ufshcd.c' line='9359' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_system_resume'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9359' column='1'/>
+      <function-decl name='ufshcd_system_resume' mangled-name='ufshcd_system_resume' filepath='drivers/scsi/ufs/ufshcd.c' line='9468' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_system_resume'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9468' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_system_suspend' mangled-name='ufshcd_system_suspend' filepath='drivers/scsi/ufs/ufshcd.c' line='9332' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_system_suspend'>
-        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9332' column='1'/>
+      <function-decl name='ufshcd_system_suspend' mangled-name='ufshcd_system_suspend' filepath='drivers/scsi/ufs/ufshcd.c' line='9441' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_system_suspend'>
+        <parameter type-id='fa0b179b' name='dev' filepath='drivers/scsi/ufs/ufshcd.c' line='9441' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_uic_hibern8_enter' mangled-name='ufshcd_uic_hibern8_enter' filepath='drivers/scsi/ufs/ufshcd.c' line='4171' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_uic_hibern8_enter'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='4171' column='1'/>
+      <function-decl name='ufshcd_uic_hibern8_enter' mangled-name='ufshcd_uic_hibern8_enter' filepath='drivers/scsi/ufs/ufshcd.c' line='4213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_uic_hibern8_enter'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='4213' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='ufshcd_uic_hibern8_exit' mangled-name='ufshcd_uic_hibern8_exit' filepath='drivers/scsi/ufs/ufshcd.c' line='4195' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_uic_hibern8_exit'>
-        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='4195' column='1'/>
+      <function-decl name='ufshcd_uic_hibern8_exit' mangled-name='ufshcd_uic_hibern8_exit' filepath='drivers/scsi/ufs/ufshcd.c' line='4237' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='ufshcd_uic_hibern8_exit'>
+        <parameter type-id='442b8d89' name='hba' filepath='drivers/scsi/ufs/ufshcd.c' line='4237' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='uio_unregister_device' mangled-name='uio_unregister_device' filepath='drivers/uio/uio.c' line='1042' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='uio_unregister_device'>
@@ -122817,11 +122991,11 @@
         <parameter type-id='02f11ed4' name='page' filepath='mm/filemap.c' line='1468' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unmap_mapping_range' mangled-name='unmap_mapping_range' filepath='mm/memory.c' line='3538' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unmap_mapping_range'>
-        <parameter type-id='f57039f0' name='mapping' filepath='mm/memory.c' line='3538' column='1'/>
-        <parameter type-id='bf352dfe' name='holebegin' filepath='mm/memory.c' line='3539' column='1'/>
-        <parameter type-id='bf352dfe' name='holelen' filepath='mm/memory.c' line='3539' column='1'/>
-        <parameter type-id='95e97e5e' name='even_cows' filepath='mm/memory.c' line='3539' column='1'/>
+      <function-decl name='unmap_mapping_range' mangled-name='unmap_mapping_range' filepath='mm/memory.c' line='3526' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unmap_mapping_range'>
+        <parameter type-id='f57039f0' name='mapping' filepath='mm/memory.c' line='3526' column='1'/>
+        <parameter type-id='bf352dfe' name='holebegin' filepath='mm/memory.c' line='3527' column='1'/>
+        <parameter type-id='bf352dfe' name='holelen' filepath='mm/memory.c' line='3527' column='1'/>
+        <parameter type-id='95e97e5e' name='even_cows' filepath='mm/memory.c' line='3527' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unpin_user_page' mangled-name='unpin_user_page' filepath='mm/gup.c' line='250' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unpin_user_page'>
@@ -122903,8 +123077,8 @@
         <parameter type-id='7331a99f' name='rpdrv' filepath='drivers/rpmsg/rpmsg_core.c' line='630' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='unregister_shrinker' mangled-name='unregister_shrinker' filepath='mm/vmscan.c' line='424' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_shrinker'>
-        <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='424' column='1'/>
+      <function-decl name='unregister_shrinker' mangled-name='unregister_shrinker' filepath='mm/vmscan.c' line='435' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_shrinker'>
+        <parameter type-id='4be14597' name='shrinker' filepath='mm/vmscan.c' line='435' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='unregister_syscore_ops' mangled-name='unregister_syscore_ops' filepath='drivers/base/syscore.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='unregister_syscore_ops'>
@@ -124189,16 +124363,16 @@
         <parameter type-id='7359adad' name='vm_flags' filepath='mm/mmap.c' line='111' column='1'/>
         <return type-id='2e2dcbd3'/>
       </function-decl>
-      <function-decl name='vm_iomap_memory' mangled-name='vm_iomap_memory' filepath='mm/memory.c' line='2388' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_iomap_memory'>
-        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2388' column='1'/>
-        <parameter type-id='2522883d' name='start' filepath='mm/memory.c' line='2388' column='1'/>
-        <parameter type-id='7359adad' name='len' filepath='mm/memory.c' line='2388' column='1'/>
+      <function-decl name='vm_iomap_memory' mangled-name='vm_iomap_memory' filepath='mm/memory.c' line='2376' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_iomap_memory'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2376' column='1'/>
+        <parameter type-id='2522883d' name='start' filepath='mm/memory.c' line='2376' column='1'/>
+        <parameter type-id='7359adad' name='len' filepath='mm/memory.c' line='2376' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='vm_map_pages' mangled-name='vm_map_pages' filepath='mm/memory.c' line='1932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_map_pages'>
-        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='1932' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/memory.c' line='1932' column='1'/>
-        <parameter type-id='7359adad' name='num' filepath='mm/memory.c' line='1933' column='1'/>
+      <function-decl name='vm_map_pages' mangled-name='vm_map_pages' filepath='mm/memory.c' line='1920' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_map_pages'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='1920' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/memory.c' line='1920' column='1'/>
+        <parameter type-id='7359adad' name='num' filepath='mm/memory.c' line='1921' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='vm_map_ram' mangled-name='vm_map_ram' filepath='mm/vmalloc.c' line='1847' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vm_map_ram'>
@@ -124245,23 +124419,23 @@
         <parameter type-id='b59d7dce' name='len' filepath='mm/util.c' line='198' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='vmf_insert_mixed' mangled-name='vmf_insert_mixed' filepath='mm/memory.c' line='2182' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_mixed'>
-        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2182' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2182' column='1'/>
-        <parameter type-id='abe59ef3' name='pfn' filepath='mm/memory.c' line='2183' column='1'/>
+      <function-decl name='vmf_insert_mixed' mangled-name='vmf_insert_mixed' filepath='mm/memory.c' line='2170' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_mixed'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2170' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2170' column='1'/>
+        <parameter type-id='abe59ef3' name='pfn' filepath='mm/memory.c' line='2171' column='1'/>
         <return type-id='e9265215'/>
       </function-decl>
-      <function-decl name='vmf_insert_pfn' mangled-name='vmf_insert_pfn' filepath='mm/memory.c' line='2082' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_pfn'>
-        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2082' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2082' column='1'/>
-        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2083' column='1'/>
+      <function-decl name='vmf_insert_pfn' mangled-name='vmf_insert_pfn' filepath='mm/memory.c' line='2070' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_pfn'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2070' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2070' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2071' column='1'/>
         <return type-id='e9265215'/>
       </function-decl>
-      <function-decl name='vmf_insert_pfn_prot' mangled-name='vmf_insert_pfn_prot' filepath='mm/memory.c' line='2034' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_pfn_prot'>
-        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2034' column='1'/>
-        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2034' column='1'/>
-        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2035' column='1'/>
-        <parameter type-id='2e2dcbd3' name='pgprot' filepath='mm/memory.c' line='2035' column='1'/>
+      <function-decl name='vmf_insert_pfn_prot' mangled-name='vmf_insert_pfn_prot' filepath='mm/memory.c' line='2022' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vmf_insert_pfn_prot'>
+        <parameter type-id='2ae08426' name='vma' filepath='mm/memory.c' line='2022' column='1'/>
+        <parameter type-id='7359adad' name='addr' filepath='mm/memory.c' line='2022' column='1'/>
+        <parameter type-id='7359adad' name='pfn' filepath='mm/memory.c' line='2023' column='1'/>
+        <parameter type-id='2e2dcbd3' name='pgprot' filepath='mm/memory.c' line='2023' column='1'/>
         <return type-id='e9265215'/>
       </function-decl>
       <function-decl name='vprintk' mangled-name='vprintk' filepath='kernel/printk/printk.c' line='2070' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='vprintk'>
diff --git a/build.config.common b/build.config.common
index ef32b2235580e..339c8e25e2d8b 100644
--- a/build.config.common
+++ b/build.config.common
@@ -1,6 +1,6 @@
 . ${ROOT_DIR}/${KERNEL_DIR}/build.config.constants
 
-KMI_GENERATION=3
+KMI_GENERATION=4
 
 LLVM=1
 DEPMOD=depmod
-- 
GitLab


From d5d9a235764ef913b65c4ec07061f0585de7c9f4 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Fri, 15 Apr 2022 09:30:21 -0700
Subject: [PATCH 4751/4878] ANDROID: mm: retry GUP with orignal gup_flags on
 failure

If GUP fails due to modified flags by vendor hook,
try one more time with original flag to keep the
API semantic.

Bug: 229391920
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: If2c20fe3e1752c9cc0d7d350ad84b38d8325f9ae
---
 mm/gup.c | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/mm/gup.c b/mm/gup.c
index ecc023e369406..e942c53c8ceaf 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1740,6 +1740,8 @@ static long __get_user_pages_remote(struct mm_struct *mm,
 				    unsigned int gup_flags, struct page **pages,
 				    struct vm_area_struct **vmas, int *locked)
 {
+	unsigned int orig_gup_flags = gup_flags;
+
 	trace_android_vh___get_user_pages_remote(locked, &gup_flags, pages);
 
 	/*
@@ -1749,16 +1751,23 @@ static long __get_user_pages_remote(struct mm_struct *mm,
 	 * callers that do request FOLL_LONGTERM, but do not set locked. So,
 	 * allow what we can.
 	 */
+retry:
 	if (gup_flags & FOLL_LONGTERM) {
+		long ret;
+
 		if (WARN_ON_ONCE(locked))
 			return -EINVAL;
 		/*
 		 * This will check the vmas (even if our vmas arg is NULL)
 		 * and return -ENOTSUPP if DAX isn't allowed in this case:
 		 */
-		return __gup_longterm_locked(mm, start, nr_pages, pages,
+		ret = __gup_longterm_locked(mm, start, nr_pages, pages,
 					     vmas, gup_flags | FOLL_TOUCH |
 					     FOLL_REMOTE);
+		if (ret < 0 && orig_gup_flags != gup_flags) {
+			gup_flags = orig_gup_flags;
+			goto retry;
+		}
 	}
 
 	return __get_user_pages_locked(mm, start, nr_pages, pages, vmas,
@@ -1877,13 +1886,23 @@ long get_user_pages(unsigned long start, unsigned long nr_pages,
 		unsigned int gup_flags, struct page **pages,
 		struct vm_area_struct **vmas)
 {
+	long ret;
+	unsigned int orig_gup_flags;
+
 	if (!is_valid_gup_flags(gup_flags))
 		return -EINVAL;
 
+	orig_gup_flags = gup_flags;
 	trace_android_vh_get_user_pages(&gup_flags, pages);
-
-	return __gup_longterm_locked(current->mm, start, nr_pages,
+retry:
+	ret = __gup_longterm_locked(current->mm, start, nr_pages,
 				     pages, vmas, gup_flags | FOLL_TOUCH);
+	if (ret < 0 && orig_gup_flags != gup_flags) {
+		gup_flags = orig_gup_flags;
+		goto retry;
+	}
+
+	return ret;
 }
 EXPORT_SYMBOL(get_user_pages);
 
-- 
GitLab


From 609fa1be7a2afb38341a9fc185ffebd99553ccd7 Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@google.com>
Date: Mon, 18 Apr 2022 12:13:26 -0700
Subject: [PATCH 4752/4878] ANDROID: mm: page_pinner: fix elapsed time

Put the elapsed time instead of zero all the time.

Bug: 218731671
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ibb319e7dfce2d47481e2462bfb8423fbd2ddad66
---
 mm/page_pinner.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/mm/page_pinner.c b/mm/page_pinner.c
index dec309e7bd00d..b81d48fa65fdb 100644
--- a/mm/page_pinner.c
+++ b/mm/page_pinner.c
@@ -275,6 +275,7 @@ void __page_pinner_put_page(struct page *page)
 	struct page_ext *page_ext = lookup_page_ext(page);
 	struct page_pinner *page_pinner;
 	struct captured_pinner record;
+	u64 now, ts_usec;
 
 	if (unlikely(!page_ext))
 		return;
@@ -284,8 +285,13 @@ void __page_pinner_put_page(struct page *page)
 
 	page_pinner = get_page_pinner(page_ext);
 	record.handle = save_stack(GFP_NOWAIT|__GFP_NOWARN);
-	record.elapsed = min_t(u64, 0, (u64)ktime_to_us(ktime_get_boottime()) -
-				page_pinner->ts_usec);
+	now = (u64)ktime_to_us(ktime_get_boottime());
+	ts_usec = page_pinner->ts_usec;
+
+	if (now > ts_usec)
+		record.elapsed = now - ts_usec;
+	else
+		record.elapsed = 0;
 	record.state = PP_PUT;
 	capture_page_state(page, &record);
 
-- 
GitLab


From 53ff5efb2c122b4f44d990068eb885813eb651f5 Mon Sep 17 00:00:00 2001
From: Sajid Dalvi <sdalvi@google.com>
Date: Tue, 27 Jul 2021 17:31:07 -0500
Subject: [PATCH 4753/4878] ANDROID: PCI/PM: Use usleep_range for d3hot_delay

This patch implements a vendor hook that changes d3hot_delay to use
usleep_range() instead of msleep() to reduce the resume time from
20ms to 10ms.

The call sequence is as follows:
pci_pm_resume_noirq()
pci_pm_default_resume_early()
pci_power_up()
pci_raw_set_power_state() --> msleep(10)

The default d3hot_delay is 10ms. Using msleep for delays less than 20ms
could result in delays up to 20ms.
Reference: Documentation/timers/timers-howto.rst

Using usleep_range() results in the delay being closer to 10ms and this
reduces the resume time.

Bug: 194231641
Change-Id: If3e4dcfb99edad302371273933fa6784854cf892
Signed-off-by: Sajid Dalvi <sdalvi@google.com>
---
 drivers/android/vendor_hooks.c |  2 ++
 drivers/pci/pci.c              |  8 ++++++--
 include/trace/hooks/pci.h      | 21 +++++++++++++++++++++
 3 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 include/trace/hooks/pci.h

diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c
index 18caca409bd2a..e8773213ed4c5 100644
--- a/drivers/android/vendor_hooks.c
+++ b/drivers/android/vendor_hooks.c
@@ -74,6 +74,7 @@
 #include <trace/hooks/sound.h>
 #include <trace/hooks/snd_compr.h>
 #include <trace/hooks/gup.h>
+#include <trace/hooks/pci.h>
 
 /*
  * Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -395,3 +396,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_load_avg);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_remove_entity_load_avg);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_blocked_fair);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_rt_rq_load_avg);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_pci_d3_sleep);
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 0d7109018a91f..fbb4d765b43c8 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -31,6 +31,7 @@
 #include <linux/vmalloc.h>
 #include <asm/dma.h>
 #include <linux/aer.h>
+#include <trace/hooks/pci.h>
 #include "pci.h"
 
 DEFINE_MUTEX(pci_slot_mutex);
@@ -68,8 +69,11 @@ static void pci_dev_d3_sleep(struct pci_dev *dev)
 	if (delay < pci_pm_d3hot_delay)
 		delay = pci_pm_d3hot_delay;
 
-	if (delay)
-		msleep(delay);
+	if (delay) {
+		trace_android_rvh_pci_d3_sleep(dev, &delay);
+		if (delay)
+			msleep(delay);
+	}
 }
 
 #ifdef CONFIG_PCI_DOMAINS
diff --git a/include/trace/hooks/pci.h b/include/trace/hooks/pci.h
new file mode 100644
index 0000000000000..00d38980ec499
--- /dev/null
+++ b/include/trace/hooks/pci.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM pci
+#define TRACE_INCLUDE_PATH trace/hooks
+
+#if !defined(_TRACE_HOOK_PCI_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HOOK_PCI_H
+#include <trace/hooks/vendor_hooks.h>
+/*
+ * Following tracepoints are not exported in tracefs and provide a
+ * mechanism for vendor modules to hook and extend functionality
+ */
+
+DECLARE_RESTRICTED_HOOK(android_rvh_pci_d3_sleep,
+		TP_PROTO(struct pci_dev *dev, unsigned int *delay),
+		TP_ARGS(dev, delay), 1);
+
+#endif /* _TRACE_HOOK_PCI_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
GitLab


From 699e6e32117a7ce94abf116df01c05f34d223712 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 20 Jan 2022 10:28:13 -0700
Subject: [PATCH 4754/4878] UPSTREAM: block: fix async_depth sysfs interface
 for mq-deadline

A previous commit added this feature, but it inadvertently used the wrong
variable to show/store the setting from/to, victimized by copy/paste. Fix
it up so that the async_depth sysfs interface reads and writes from the
right setting.

Fixes: 07757588e507 ("block/mq-deadline: Reserve 25% of scheduler tags for synchronous requests")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215485
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Change-Id: I28273a92ac7cbebc830df8b80ad461948402bcd2
(cherry picked from commit 46cdc45acb089c811d9a54fd50af33b96e5fae9d)
Signed-off-by: Bart Van Assche <bvanassche@google.com>
---
 block/mq-deadline.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index 0c6e2b3cf98eb..6556aa2182a53 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -860,7 +860,7 @@ SHOW_JIFFIES(deadline_write_expire_show, dd->fifo_expire[DD_WRITE]);
 SHOW_JIFFIES(deadline_prio_aging_expire_show, dd->prio_aging_expire);
 SHOW_INT(deadline_writes_starved_show, dd->writes_starved);
 SHOW_INT(deadline_front_merges_show, dd->front_merges);
-SHOW_INT(deadline_async_depth_show, dd->front_merges);
+SHOW_INT(deadline_async_depth_show, dd->async_depth);
 SHOW_INT(deadline_fifo_batch_show, dd->fifo_batch);
 #undef SHOW_INT
 #undef SHOW_JIFFIES
@@ -890,7 +890,7 @@ STORE_JIFFIES(deadline_write_expire_store, &dd->fifo_expire[DD_WRITE], 0, INT_MA
 STORE_JIFFIES(deadline_prio_aging_expire_store, &dd->prio_aging_expire, 0, INT_MAX);
 STORE_INT(deadline_writes_starved_store, &dd->writes_starved, INT_MIN, INT_MAX);
 STORE_INT(deadline_front_merges_store, &dd->front_merges, 0, 1);
-STORE_INT(deadline_async_depth_store, &dd->front_merges, 1, INT_MAX);
+STORE_INT(deadline_async_depth_store, &dd->async_depth, 1, INT_MAX);
 STORE_INT(deadline_fifo_batch_store, &dd->fifo_batch, 0, INT_MAX);
 #undef STORE_FUNCTION
 #undef STORE_INT
-- 
GitLab


From 68c87a277c3156d0d54270c8eff7d7d8c5210372 Mon Sep 17 00:00:00 2001
From: Sajid Dalvi <sdalvi@google.com>
Date: Tue, 19 Apr 2022 12:45:34 -0500
Subject: [PATCH 4755/4878] ANDROID: Update the ABI representation

Leaf changes summary: 2 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable

1 Added function:

  [A] 'function int __traceiter_android_rvh_pci_d3_sleep(void*, pci_dev*, unsigned int*)'

1 Added variable:

  [A] 'tracepoint __tracepoint_android_rvh_pci_d3_sleep'

Bug: 229125931
Signed-off-by: Sajid Dalvi <sdalvi@google.com>
Change-Id: I7db067bd3d468b11826e5e59ee9c96706fbad760
---
 android/abi_gki_aarch64.xml     | 243 +++++++++++++++++---------------
 android/abi_gki_aarch64_generic |   3 +
 2 files changed, 129 insertions(+), 117 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 1364bcb1d33ba..0908aca8fbc37 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -224,6 +224,7 @@
       <elf-symbol name='__traceiter_android_rvh_find_energy_efficient_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x34729d74'/>
       <elf-symbol name='__traceiter_android_rvh_irqs_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x707d1f10'/>
       <elf-symbol name='__traceiter_android_rvh_irqs_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a345722'/>
+      <elf-symbol name='__traceiter_android_rvh_pci_d3_sleep' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xab4f646d'/>
       <elf-symbol name='__traceiter_android_rvh_post_init_entity_util_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xfcfea98e'/>
       <elf-symbol name='__traceiter_android_rvh_preempt_disable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x1585c762'/>
       <elf-symbol name='__traceiter_android_rvh_preempt_enable' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3235e37a'/>
@@ -3703,6 +3704,7 @@
       <elf-symbol name='__tracepoint_android_rvh_find_energy_efficient_cpu' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc762e5b3'/>
       <elf-symbol name='__tracepoint_android_rvh_irqs_disable' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x44ac9f4b'/>
       <elf-symbol name='__tracepoint_android_rvh_irqs_enable' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc9d53b36'/>
+      <elf-symbol name='__tracepoint_android_rvh_pci_d3_sleep' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4c04111'/>
       <elf-symbol name='__tracepoint_android_rvh_post_init_entity_util_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa967c441'/>
       <elf-symbol name='__tracepoint_android_rvh_preempt_disable' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb4ec0da4'/>
       <elf-symbol name='__tracepoint_android_rvh_preempt_enable' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x86d490a6'/>
@@ -77293,12 +77295,12 @@
         <parameter type-id='eaa32e2f'/>
         <return type-id='95e97e5e'/>
       </function-type>
-      <class-decl name='pci_saved_state' size-in-bits='512' is-struct='yes' visibility='default' filepath='drivers/pci/pci.c' line='1697' column='1' id='bdbf2231'>
+      <class-decl name='pci_saved_state' size-in-bits='512' is-struct='yes' visibility='default' filepath='drivers/pci/pci.c' line='1701' column='1' id='bdbf2231'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='config_space' type-id='02fdec64' visibility='default' filepath='drivers/pci/pci.c' line='1698' column='1'/>
+          <var-decl name='config_space' type-id='02fdec64' visibility='default' filepath='drivers/pci/pci.c' line='1702' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='512'>
-          <var-decl name='cap' type-id='5f7bfbc1' visibility='default' filepath='drivers/pci/pci.c' line='1699' column='1'/>
+          <var-decl name='cap' type-id='5f7bfbc1' visibility='default' filepath='drivers/pci/pci.c' line='1703' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='facd5338' size-in-bits='64' id='bdcee7ae'/>
@@ -106642,6 +106644,12 @@
         <parameter type-id='7359adad' name='parent_ip' filepath='include/trace/hooks/preemptirq.h' line='25' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_pci_d3_sleep' mangled-name='__traceiter_android_rvh_pci_d3_sleep' filepath='include/trace/hooks/pci.h' line='14' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_pci_d3_sleep'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/pci.h' line='14' column='1'/>
+        <parameter type-id='85196e3f' name='dev' filepath='include/trace/hooks/pci.h' line='14' column='1'/>
+        <parameter type-id='807869d3' name='delay' filepath='include/trace/hooks/pci.h' line='14' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_post_init_entity_util_avg' mangled-name='__traceiter_android_rvh_post_init_entity_util_avg' filepath='include/trace/hooks/sched.h' line='328' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_post_init_entity_util_avg'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='328' column='1'/>
         <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='328' column='1'/>
@@ -107239,6 +107247,7 @@
       <var-decl name='__tracepoint_android_rvh_find_energy_efficient_cpu' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_find_energy_efficient_cpu' visibility='default' filepath='include/trace/hooks/sched.h' line='115' column='1' elf-symbol-id='__tracepoint_android_rvh_find_energy_efficient_cpu'/>
       <var-decl name='__tracepoint_android_rvh_irqs_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='21' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_disable'/>
       <var-decl name='__tracepoint_android_rvh_irqs_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_irqs_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='25' column='1' elf-symbol-id='__tracepoint_android_rvh_irqs_enable'/>
+      <var-decl name='__tracepoint_android_rvh_pci_d3_sleep' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_pci_d3_sleep' visibility='default' filepath='include/trace/hooks/pci.h' line='14' column='1' elf-symbol-id='__tracepoint_android_rvh_pci_d3_sleep'/>
       <var-decl name='__tracepoint_android_rvh_post_init_entity_util_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_post_init_entity_util_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='328' column='1' elf-symbol-id='__tracepoint_android_rvh_post_init_entity_util_avg'/>
       <var-decl name='__tracepoint_android_rvh_preempt_disable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_disable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='13' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_disable'/>
       <var-decl name='__tracepoint_android_rvh_preempt_enable' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_preempt_enable' visibility='default' filepath='include/trace/hooks/preemptirq.h' line='17' column='1' elf-symbol-id='__tracepoint_android_rvh_preempt_enable'/>
@@ -114165,29 +114174,29 @@
         <parameter type-id='f0981eeb' name='flags' filepath='fs/file.c' line='561' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1876' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1876' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1876' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1877' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1877' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1878' column='1'/>
+      <function-decl name='get_user_pages' mangled-name='get_user_pages' filepath='mm/gup.c' line='1885' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1885' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1885' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1886' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1886' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1887' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2774' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2774' column='1'/>
-        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2774' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2775' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2775' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1829' column='1'/>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1830' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1830' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1831' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1831' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1832' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1832' column='1'/>
+      <function-decl name='get_user_pages_fast' mangled-name='get_user_pages_fast' filepath='mm/gup.c' line='2793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2793' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2793' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2794' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2794' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='get_user_pages_remote' mangled-name='get_user_pages_remote' filepath='mm/gup.c' line='1838' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='1838' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='1839' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='1839' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='1840' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='1840' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='1841' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='1841' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='get_vaddr_frames' mangled-name='get_vaddr_frames' filepath='mm/frame_vector.c' line='34' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='get_vaddr_frames'>
@@ -118184,8 +118193,8 @@
         <return type-id='95e97e5e'/>
       </function-decl>
       <var-decl name='pci_bus_type' type-id='b31bfc8a' mangled-name='pci_bus_type' visibility='default' filepath='drivers/pci/pci-driver.c' line='1598' column='1' elf-symbol-id='pci_bus_type'/>
-      <function-decl name='pci_clear_master' mangled-name='pci_clear_master' filepath='drivers/pci/pci.c' line='4302' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_clear_master'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4302' column='1'/>
+      <function-decl name='pci_clear_master' mangled-name='pci_clear_master' filepath='drivers/pci/pci.c' line='4306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_clear_master'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4306' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_dev_put' mangled-name='pci_dev_put' filepath='drivers/pci/pci-driver.c' line='1491' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_dev_put'>
@@ -118196,12 +118205,12 @@
         <parameter type-id='fa0b179b' name='dev' filepath='drivers/iommu/iommu.c' line='1394' column='1'/>
         <return type-id='0b19fc54'/>
       </function-decl>
-      <function-decl name='pci_device_is_present' mangled-name='pci_device_is_present' filepath='drivers/pci/pci.c' line='6139' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_device_is_present'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='6139' column='1'/>
+      <function-decl name='pci_device_is_present' mangled-name='pci_device_is_present' filepath='drivers/pci/pci.c' line='6143' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_device_is_present'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='6143' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='pci_disable_device' mangled-name='pci_disable_device' filepath='drivers/pci/pci.c' line='2138' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_device'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2138' column='1'/>
+      <function-decl name='pci_disable_device' mangled-name='pci_disable_device' filepath='drivers/pci/pci.c' line='2142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_device'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2142' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_disable_msi' mangled-name='pci_disable_msi' filepath='drivers/pci/msi.c' line='962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_disable_msi'>
@@ -118216,12 +118225,12 @@
         <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/iov.c' line='943' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_enable_device' mangled-name='pci_enable_device' filepath='drivers/pci/pci.c' line='1945' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1945' column='1'/>
+      <function-decl name='pci_enable_device' mangled-name='pci_enable_device' filepath='drivers/pci/pci.c' line='1949' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1949' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_enable_device_mem' mangled-name='pci_enable_device_mem' filepath='drivers/pci/pci.c' line='1928' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device_mem'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1928' column='1'/>
+      <function-decl name='pci_enable_device_mem' mangled-name='pci_enable_device_mem' filepath='drivers/pci/pci.c' line='1932' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_device_mem'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1932' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_enable_msi' mangled-name='pci_enable_msi' filepath='drivers/pci/msi.c' line='1127' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_msi'>
@@ -118237,10 +118246,10 @@
         <parameter type-id='95e97e5e' name='nr_virtfn' filepath='drivers/pci/iov.c' line='928' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_enable_wake' mangled-name='pci_enable_wake' filepath='drivers/pci/pci.c' line='2502' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_wake'>
-        <parameter type-id='85196e3f' name='pci_dev' filepath='drivers/pci/pci.c' line='2502' column='1'/>
-        <parameter type-id='49c32219' name='state' filepath='drivers/pci/pci.c' line='2502' column='1'/>
-        <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2502' column='1'/>
+      <function-decl name='pci_enable_wake' mangled-name='pci_enable_wake' filepath='drivers/pci/pci.c' line='2506' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_enable_wake'>
+        <parameter type-id='85196e3f' name='pci_dev' filepath='drivers/pci/pci.c' line='2506' column='1'/>
+        <parameter type-id='49c32219' name='state' filepath='drivers/pci/pci.c' line='2506' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2506' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_find_bus' mangled-name='pci_find_bus' filepath='drivers/pci/search.c' line='141' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_bus'>
@@ -118248,20 +118257,20 @@
         <parameter type-id='95e97e5e' name='busnr' filepath='drivers/pci/search.c' line='141' column='1'/>
         <return type-id='d1feb554'/>
       </function-decl>
-      <function-decl name='pci_find_capability' mangled-name='pci_find_capability' filepath='drivers/pci/pci.c' line='480' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_capability'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='480' column='1'/>
-        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='480' column='1'/>
+      <function-decl name='pci_find_capability' mangled-name='pci_find_capability' filepath='drivers/pci/pci.c' line='484' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_capability'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='484' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='484' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_find_ext_capability' mangled-name='pci_find_ext_capability' filepath='drivers/pci/pci.c' line='586' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_ext_capability'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='586' column='1'/>
-        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='586' column='1'/>
+      <function-decl name='pci_find_ext_capability' mangled-name='pci_find_ext_capability' filepath='drivers/pci/pci.c' line='590' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_ext_capability'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='590' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='590' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_find_next_capability' mangled-name='pci_find_next_capability' filepath='drivers/pci/pci.c' line='434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_next_capability'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='434' column='1'/>
-        <parameter type-id='f9b06939' name='pos' filepath='drivers/pci/pci.c' line='434' column='1'/>
-        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='434' column='1'/>
+      <function-decl name='pci_find_next_capability' mangled-name='pci_find_next_capability' filepath='drivers/pci/pci.c' line='438' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_find_next_capability'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='438' column='1'/>
+        <parameter type-id='f9b06939' name='pos' filepath='drivers/pci/pci.c' line='438' column='1'/>
+        <parameter type-id='95e97e5e' name='cap' filepath='drivers/pci/pci.c' line='438' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_free_irq' mangled-name='pci_free_irq' filepath='drivers/pci/irq.c' line='70' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_free_irq'>
@@ -118285,9 +118294,9 @@
         <parameter type-id='f0981eeb' name='devfn' filepath='drivers/pci/search.c' line='195' column='1'/>
         <return type-id='85196e3f'/>
       </function-decl>
-      <function-decl name='pci_intx' mangled-name='pci_intx' filepath='drivers/pci/pci.c' line='4444' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_intx'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='4444' column='1'/>
-        <parameter type-id='95e97e5e' name='enable' filepath='drivers/pci/pci.c' line='4444' column='1'/>
+      <function-decl name='pci_intx' mangled-name='pci_intx' filepath='drivers/pci/pci.c' line='4448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_intx'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='4448' column='1'/>
+        <parameter type-id='95e97e5e' name='enable' filepath='drivers/pci/pci.c' line='4448' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_iomap' mangled-name='pci_iomap' filepath='lib/pci_iomap.c' line='111' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_iomap'>
@@ -118303,9 +118312,9 @@
         <parameter type-id='7359adad' name='maxlen' filepath='lib/pci_iomap.c' line='31' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
-      <function-decl name='pci_ioremap_bar' mangled-name='pci_ioremap_bar' filepath='drivers/pci/pci.c' line='209' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_ioremap_bar'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='209' column='1'/>
-        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='209' column='1'/>
+      <function-decl name='pci_ioremap_bar' mangled-name='pci_ioremap_bar' filepath='drivers/pci/pci.c' line='213' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_ioremap_bar'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='213' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='213' column='1'/>
         <return type-id='eaa32e2f'/>
       </function-decl>
       <function-decl name='pci_irq_get_affinity' mangled-name='pci_irq_get_affinity' filepath='drivers/pci/msi.c' line='1320' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_irq_get_affinity'>
@@ -118318,14 +118327,14 @@
         <parameter type-id='f0981eeb' name='nr' filepath='drivers/pci/msi.c' line='1281' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_load_and_free_saved_state' mangled-name='pci_load_and_free_saved_state' filepath='drivers/pci/pci.c' line='1785' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_and_free_saved_state'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1785' column='1'/>
-        <parameter type-id='6efc6709' name='state' filepath='drivers/pci/pci.c' line='1786' column='1'/>
+      <function-decl name='pci_load_and_free_saved_state' mangled-name='pci_load_and_free_saved_state' filepath='drivers/pci/pci.c' line='1789' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_and_free_saved_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1789' column='1'/>
+        <parameter type-id='6efc6709' name='state' filepath='drivers/pci/pci.c' line='1790' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_load_saved_state' mangled-name='pci_load_saved_state' filepath='drivers/pci/pci.c' line='1748' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_saved_state'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1748' column='1'/>
-        <parameter type-id='e4acc659' name='state' filepath='drivers/pci/pci.c' line='1749' column='1'/>
+      <function-decl name='pci_load_saved_state' mangled-name='pci_load_saved_state' filepath='drivers/pci/pci.c' line='1752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_load_saved_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1752' column='1'/>
+        <parameter type-id='e4acc659' name='state' filepath='drivers/pci/pci.c' line='1753' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_match_id' mangled-name='pci_match_id' filepath='drivers/pci/pci-driver.c' line='223' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_match_id'>
@@ -118359,18 +118368,18 @@
         <parameter type-id='26d4d46f' name='val' filepath='drivers/pci/access.c' line='533' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_release_region' mangled-name='pci_release_region' filepath='drivers/pci/pci.c' line='3788' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_region'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3788' column='1'/>
-        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3788' column='1'/>
+      <function-decl name='pci_release_region' mangled-name='pci_release_region' filepath='drivers/pci/pci.c' line='3792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_region'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3792' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3792' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_release_regions' mangled-name='pci_release_regions' filepath='drivers/pci/pci.c' line='3946' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_regions'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3946' column='1'/>
+      <function-decl name='pci_release_regions' mangled-name='pci_release_regions' filepath='drivers/pci/pci.c' line='3950' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3950' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_release_selected_regions' mangled-name='pci_release_selected_regions' filepath='drivers/pci/pci.c' line='3885' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_selected_regions'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3885' column='1'/>
-        <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3885' column='1'/>
+      <function-decl name='pci_release_selected_regions' mangled-name='pci_release_selected_regions' filepath='drivers/pci/pci.c' line='3889' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_release_selected_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3889' column='1'/>
+        <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3889' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='pci_request_irq' mangled-name='pci_request_irq' filepath='drivers/pci/irq.c' line='33' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_irq'>
@@ -118383,21 +118392,21 @@
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_request_region' mangled-name='pci_request_region' filepath='drivers/pci/pci.c' line='3871' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_region'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3871' column='1'/>
-        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3871' column='1'/>
-        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3871' column='1'/>
+      <function-decl name='pci_request_region' mangled-name='pci_request_region' filepath='drivers/pci/pci.c' line='3875' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_region'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3875' column='1'/>
+        <parameter type-id='95e97e5e' name='bar' filepath='drivers/pci/pci.c' line='3875' column='1'/>
+        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3875' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_request_regions' mangled-name='pci_request_regions' filepath='drivers/pci/pci.c' line='3965' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_regions'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3965' column='1'/>
-        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3965' column='1'/>
+      <function-decl name='pci_request_regions' mangled-name='pci_request_regions' filepath='drivers/pci/pci.c' line='3969' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3969' column='1'/>
+        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3969' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_request_selected_regions' mangled-name='pci_request_selected_regions' filepath='drivers/pci/pci.c' line='3921' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_selected_regions'>
-        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3921' column='1'/>
-        <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3921' column='1'/>
-        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3922' column='1'/>
+      <function-decl name='pci_request_selected_regions' mangled-name='pci_request_selected_regions' filepath='drivers/pci/pci.c' line='3925' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_request_selected_regions'>
+        <parameter type-id='85196e3f' name='pdev' filepath='drivers/pci/pci.c' line='3925' column='1'/>
+        <parameter type-id='95e97e5e' name='bars' filepath='drivers/pci/pci.c' line='3925' column='1'/>
+        <parameter type-id='80f4b756' name='res_name' filepath='drivers/pci/pci.c' line='3926' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_rescan_bus' mangled-name='pci_rescan_bus' filepath='drivers/pci/probe.c' line='3227' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_rescan_bus'>
@@ -118408,26 +118417,26 @@
         <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/msi.c' line='446' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_restore_state' mangled-name='pci_restore_state' filepath='drivers/pci/pci.c' line='1662' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_state'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1662' column='1'/>
+      <function-decl name='pci_restore_state' mangled-name='pci_restore_state' filepath='drivers/pci/pci.c' line='1666' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_restore_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1666' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_save_state' mangled-name='pci_save_state' filepath='drivers/pci/pci.c' line='1547' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_save_state'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1547' column='1'/>
+      <function-decl name='pci_save_state' mangled-name='pci_save_state' filepath='drivers/pci/pci.c' line='1551' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_save_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1551' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_select_bars' mangled-name='pci_select_bars' filepath='drivers/pci/pci.c' line='5986' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_select_bars'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='5986' column='1'/>
-        <parameter type-id='7359adad' name='flags' filepath='drivers/pci/pci.c' line='5986' column='1'/>
+      <function-decl name='pci_select_bars' mangled-name='pci_select_bars' filepath='drivers/pci/pci.c' line='5990' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_select_bars'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='5990' column='1'/>
+        <parameter type-id='7359adad' name='flags' filepath='drivers/pci/pci.c' line='5990' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_set_master' mangled-name='pci_set_master' filepath='drivers/pci/pci.c' line='4291' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_master'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4291' column='1'/>
+      <function-decl name='pci_set_master' mangled-name='pci_set_master' filepath='drivers/pci/pci.c' line='4295' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_master'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='4295' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='pci_set_power_state' mangled-name='pci_set_power_state' filepath='drivers/pci/pci.c' line='1306' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_power_state'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1306' column='1'/>
-        <parameter type-id='49c32219' name='state' filepath='drivers/pci/pci.c' line='1306' column='1'/>
+      <function-decl name='pci_set_power_state' mangled-name='pci_set_power_state' filepath='drivers/pci/pci.c' line='1310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_set_power_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1310' column='1'/>
+        <parameter type-id='49c32219' name='state' filepath='drivers/pci/pci.c' line='1310' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_sriov_configure_simple' mangled-name='pci_sriov_configure_simple' filepath='drivers/pci/iov.c' line='1066' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_sriov_configure_simple'>
@@ -118435,8 +118444,8 @@
         <parameter type-id='95e97e5e' name='nr_virtfn' filepath='drivers/pci/iov.c' line='1066' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_store_saved_state' mangled-name='pci_store_saved_state' filepath='drivers/pci/pci.c' line='1709' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_store_saved_state'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1709' column='1'/>
+      <function-decl name='pci_store_saved_state' mangled-name='pci_store_saved_state' filepath='drivers/pci/pci.c' line='1713' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_store_saved_state'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='1713' column='1'/>
         <return type-id='e4acc659'/>
       </function-decl>
       <function-decl name='pci_unregister_driver' mangled-name='pci_unregister_driver' filepath='drivers/pci/pci-driver.c' line='1406' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_unregister_driver'>
@@ -118447,9 +118456,9 @@
         <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/iov.c' line='976' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
-      <function-decl name='pci_wake_from_d3' mangled-name='pci_wake_from_d3' filepath='drivers/pci/pci.c' line='2525' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_wake_from_d3'>
-        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2525' column='1'/>
-        <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2525' column='1'/>
+      <function-decl name='pci_wake_from_d3' mangled-name='pci_wake_from_d3' filepath='drivers/pci/pci.c' line='2529' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_wake_from_d3'>
+        <parameter type-id='85196e3f' name='dev' filepath='drivers/pci/pci.c' line='2529' column='1'/>
+        <parameter type-id='b50a4934' name='enable' filepath='drivers/pci/pci.c' line='2529' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='pci_write_config_byte' mangled-name='pci_write_config_byte' filepath='drivers/pci/access.c' line='554' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pci_write_config_byte'>
@@ -118636,29 +118645,29 @@
         <parameter type-id='20f5f452' name='pin' filepath='drivers/pinctrl/core.c' line='167' column='1'/>
         <return type-id='80f4b756'/>
       </function-decl>
-      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2911' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2911' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2911' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2912' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2912' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2913' column='1'/>
+      <function-decl name='pin_user_pages' mangled-name='pin_user_pages' filepath='mm/gup.c' line='2930' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2930' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2930' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2931' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2931' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2932' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
-      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2807' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2807' column='1'/>
-        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2807' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2808' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2808' column='1'/>
-        <return type-id='95e97e5e'/>
-      </function-decl>
-      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2878' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
-        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2878' column='1'/>
-        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2879' column='1'/>
-        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2879' column='1'/>
-        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2880' column='1'/>
-        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2880' column='1'/>
-        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2881' column='1'/>
-        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2881' column='1'/>
+      <function-decl name='pin_user_pages_fast' mangled-name='pin_user_pages_fast' filepath='mm/gup.c' line='2826' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_fast'>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2826' column='1'/>
+        <parameter type-id='95e97e5e' name='nr_pages' filepath='mm/gup.c' line='2826' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2827' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2827' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
+      <function-decl name='pin_user_pages_remote' mangled-name='pin_user_pages_remote' filepath='mm/gup.c' line='2897' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pin_user_pages_remote'>
+        <parameter type-id='df4b7819' name='mm' filepath='mm/gup.c' line='2897' column='1'/>
+        <parameter type-id='7359adad' name='start' filepath='mm/gup.c' line='2898' column='1'/>
+        <parameter type-id='7359adad' name='nr_pages' filepath='mm/gup.c' line='2898' column='1'/>
+        <parameter type-id='f0981eeb' name='gup_flags' filepath='mm/gup.c' line='2899' column='1'/>
+        <parameter type-id='9f93c9da' name='pages' filepath='mm/gup.c' line='2899' column='1'/>
+        <parameter type-id='8b6fdee4' name='vmas' filepath='mm/gup.c' line='2900' column='1'/>
+        <parameter type-id='7292109c' name='locked' filepath='mm/gup.c' line='2900' column='1'/>
         <return type-id='bd54fe1a'/>
       </function-decl>
       <function-decl name='pinconf_generic_dt_free_map' mangled-name='pinconf_generic_dt_free_map' filepath='drivers/pinctrl/pinconf-generic.c' line='407' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='pinconf_generic_dt_free_map'>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index adfda5c2916c2..ec604226c84b7 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -1010,6 +1010,7 @@
   i2c_unregister_device
   i2c_verify_client
   ida_alloc_range
+  ida_destroy
   ida_free
   idr_alloc
   idr_alloc_cyclic
@@ -2183,6 +2184,7 @@
   __traceiter_android_rvh_find_energy_efficient_cpu
   __traceiter_android_rvh_irqs_disable
   __traceiter_android_rvh_irqs_enable
+  __traceiter_android_rvh_pci_d3_sleep
   __traceiter_android_rvh_post_init_entity_util_avg
   __traceiter_android_rvh_preempt_disable
   __traceiter_android_rvh_preempt_enable
@@ -2284,6 +2286,7 @@
   __tracepoint_android_rvh_find_energy_efficient_cpu
   __tracepoint_android_rvh_irqs_disable
   __tracepoint_android_rvh_irqs_enable
+  __tracepoint_android_rvh_pci_d3_sleep
   __tracepoint_android_rvh_post_init_entity_util_avg
   __tracepoint_android_rvh_preempt_disable
   __tracepoint_android_rvh_preempt_enable
-- 
GitLab


From 6db38c5bbce2709365db403030c5fdc59d931189 Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 8 Apr 2022 17:35:27 -0700
Subject: [PATCH 4756/4878] FROMGIT: EXP rcu: Move expedited grace period (GP)
 work to RT kthread_worker

Enabling CONFIG_RCU_BOOST did not reduce RCU expedited grace-period
latency because its workqueues run at SCHED_OTHER, and thus can be
delayed by normal processes.  This commit avoids these delays by moving
the expedited GP work items to a real-time-priority kthread_worker.

This option is controlled by CONFIG_RCU_EXP_KTHREAD and disabled by
default on PREEMPT_RT=y kernels which disable expedited grace periods
after boot by unconditionally setting rcupdate.rcu_normal_after_boot=1.

The results were evaluated on arm64 Android devices (6GB ram) running
5.10 kernel, and capturing trace data in critical user-level code.

The table below shows the resulting order-of-magnitude improvements
in synchronize_rcu_expedited() latency:

------------------------------------------------------------------------
|                          |   workqueues  |  kthread_worker |  Diff   |
------------------------------------------------------------------------
| Count                    |          725  |            688  |         |
------------------------------------------------------------------------
| Min Duration       (ns)  |          326  |            447  |  37.12% |
------------------------------------------------------------------------
| Q1                 (ns)  |       39,428  |         38,971  |  -1.16% |
------------------------------------------------------------------------
| Q2 - Median        (ns)  |       98,225  |         69,743  | -29.00% |
------------------------------------------------------------------------
| Q3                 (ns)  |      342,122  |        126,638  | -62.98% |
------------------------------------------------------------------------
| Max Duration       (ns)  |  372,766,967  |      2,329,671  | -99.38% |
------------------------------------------------------------------------
| Avg Duration       (ns)  |    2,746,353  |        151,242  | -94.49% |
------------------------------------------------------------------------
| Standard Deviation (ns)  |   19,327,765  |        294,408  |         |
------------------------------------------------------------------------

The below table show the range of maximums/minimums for
synchronize_rcu_expedited() latency from all experiments:

------------------------------------------------------------------------
|                          |   workqueues  |  kthread_worker |  Diff   |
------------------------------------------------------------------------
| Total No. of Experiments |           25  |             23  |         |
------------------------------------------------------------------------
| Largest  Maximum   (ns)  |  372,766,967  |      2,329,671  | -99.38% |
------------------------------------------------------------------------
| Smallest Maximum   (ns)  |       38,819  |         86,954  | 124.00% |
------------------------------------------------------------------------
| Range of Maximums  (ns)  |  372,728,148  |      2,242,717  |         |
------------------------------------------------------------------------
| Largest  Minimum   (ns)  |       88,623  |         27,588  | -68.87% |
------------------------------------------------------------------------
| Smallest Minimum   (ns)  |          326  |            447  |  37.12% |
------------------------------------------------------------------------
| Range of Minimums  (ns)  |       88,297  |         27,141  |         |
------------------------------------------------------------------------

Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Reported-by: Tim Murray <timmurray@google.com>
Reported-by: Wei Wang <wvw@google.com>
Tested-by: Kyle Lin <kylelin@google.com>
Tested-by: Chunwei Lu <chunweilu@google.com>
Tested-by: Lulu Wang <luluw@google.com>
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20220409003527.1587028-1-kaleshsingh@google.com/
(cherry picked from commit 3902dd17a29bd3ed1ead364a331a1761edb7162b
git: //git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git fastexp.2022.04.11a)
Bug: 224791892
Change-Id: I4cc5d28f9ae99e44e92afc43ff4db4b71c415d6c
---
 kernel/rcu/Kconfig    |  14 ++++
 kernel/rcu/rcu.h      |   5 ++
 kernel/rcu/tree.c     |  51 ++++++++++++++-
 kernel/rcu/tree.h     |   5 ++
 kernel/rcu/tree_exp.h | 147 +++++++++++++++++++++++++++++++++---------
 5 files changed, 188 insertions(+), 34 deletions(-)

diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig
index b71e21f73c403..97bfe2a891dbc 100644
--- a/kernel/rcu/Kconfig
+++ b/kernel/rcu/Kconfig
@@ -212,6 +212,20 @@ config RCU_BOOST_DELAY
 
 	  Accept the default if unsure.
 
+config RCU_EXP_KTHREAD
+	bool "Perform RCU expedited work in a real-time kthread"
+	depends on RCU_BOOST && RCU_EXPERT
+	default !PREEMPT_RT && NR_CPUS <= 32
+	help
+	  Use this option to further reduce the latencies of expedited
+	  grace periods at the expense of being more disruptive.
+
+	  This option is disabled by default on PREEMPT_RT=y kernels which
+	  disable expedited grace periods after boot by unconditionally
+	  setting rcupdate.rcu_normal_after_boot=1.
+
+	  Accept the default if unsure.
+
 config RCU_NOCB_CPU
 	bool "Offload RCU callback processing from boot-selected CPUs"
 	depends on TREE_RCU
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index fcf95d1eec69a..7befcfae5fb5a 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -524,7 +524,12 @@ int rcu_get_gp_kthreads_prio(void);
 void rcu_fwd_progress_check(unsigned long j);
 void rcu_force_quiescent_state(void);
 extern struct workqueue_struct *rcu_gp_wq;
+#ifdef CONFIG_RCU_EXP_KTHREAD
+extern struct kthread_worker *rcu_exp_gp_kworker;
+extern struct kthread_worker *rcu_exp_par_gp_kworker;
+#else /* !CONFIG_RCU_EXP_KTHREAD */
 extern struct workqueue_struct *rcu_par_gp_wq;
+#endif /* CONFIG_RCU_EXP_KTHREAD */
 #endif /* #else #ifdef CONFIG_TINY_RCU */
 
 #ifdef CONFIG_RCU_NOCB_CPU
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 1628dcb6e45a8..5b5f80ad0e7aa 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -4234,6 +4234,51 @@ static int rcu_pm_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
+#ifdef CONFIG_RCU_EXP_KTHREAD
+struct kthread_worker *rcu_exp_gp_kworker;
+struct kthread_worker *rcu_exp_par_gp_kworker;
+
+static void __init rcu_start_exp_gp_kworkers(void)
+{
+	const char *par_gp_kworker_name = "rcu_exp_par_gp_kthread_worker";
+	const char *gp_kworker_name = "rcu_exp_gp_kthread_worker";
+	struct sched_param param = { .sched_priority = kthread_prio };
+
+	rcu_exp_gp_kworker = kthread_create_worker(0, gp_kworker_name);
+	if (IS_ERR_OR_NULL(rcu_exp_gp_kworker)) {
+		pr_err("Failed to create %s!\n", gp_kworker_name);
+		return;
+	}
+
+	rcu_exp_par_gp_kworker = kthread_create_worker(0, par_gp_kworker_name);
+	if (IS_ERR_OR_NULL(rcu_exp_par_gp_kworker)) {
+		pr_err("Failed to create %s!\n", par_gp_kworker_name);
+		kthread_destroy_worker(rcu_exp_gp_kworker);
+		return;
+	}
+
+	sched_setscheduler_nocheck(rcu_exp_gp_kworker->task, SCHED_FIFO, &param);
+	sched_setscheduler_nocheck(rcu_exp_par_gp_kworker->task, SCHED_FIFO,
+				   &param);
+}
+
+static inline void rcu_alloc_par_gp_wq(void)
+{
+}
+#else /* !CONFIG_RCU_EXP_KTHREAD */
+struct workqueue_struct *rcu_par_gp_wq;
+
+static void __init rcu_start_exp_gp_kworkers(void)
+{
+}
+
+static inline void rcu_alloc_par_gp_wq(void)
+{
+	rcu_par_gp_wq = alloc_workqueue("rcu_par_gp", WQ_MEM_RECLAIM, 0);
+	WARN_ON(!rcu_par_gp_wq);
+}
+#endif /* CONFIG_RCU_EXP_KTHREAD */
+
 /*
  * Spawn the kthreads that handle RCU's grace periods.
  */
@@ -4279,6 +4324,8 @@ static int __init rcu_spawn_gp_kthread(void)
 	rcu_spawn_nocb_kthreads();
 	rcu_spawn_boost_kthreads();
 	rcu_spawn_core_kthreads();
+	/* Create kthread worker for expedited GPs */
+	rcu_start_exp_gp_kworkers();
 	return 0;
 }
 early_initcall(rcu_spawn_gp_kthread);
@@ -4501,7 +4548,6 @@ static void __init rcu_dump_rcu_node_tree(void)
 }
 
 struct workqueue_struct *rcu_gp_wq;
-struct workqueue_struct *rcu_par_gp_wq;
 
 static void __init kfree_rcu_batch_init(void)
 {
@@ -4554,8 +4600,7 @@ void __init rcu_init(void)
 	/* Create workqueue for expedited GPs and for Tree SRCU. */
 	rcu_gp_wq = alloc_workqueue("rcu_gp", WQ_MEM_RECLAIM, 0);
 	WARN_ON(!rcu_gp_wq);
-	rcu_par_gp_wq = alloc_workqueue("rcu_par_gp", WQ_MEM_RECLAIM, 0);
-	WARN_ON(!rcu_par_gp_wq);
+	rcu_alloc_par_gp_wq();
 	srcu_init();
 
 	/* Fill in default value for rcutree.qovld boot parameter. */
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index e4f66b8f7c470..12432de6c9203 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -10,6 +10,7 @@
  */
 
 #include <linux/cache.h>
+#include <linux/kthread.h>
 #include <linux/spinlock.h>
 #include <linux/rtmutex.h>
 #include <linux/threads.h>
@@ -23,7 +24,11 @@
 /* Communicate arguments to a workqueue handler. */
 struct rcu_exp_work {
 	unsigned long rew_s;
+#ifdef CONFIG_RCU_EXP_KTHREAD
+	struct kthread_work rew_work;
+#else
 	struct work_struct rew_work;
+#endif /* CONFIG_RCU_EXP_KTHREAD */
 };
 
 /* RCU's kthread states for tracing. */
diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h
index 6aeb5f517ce2c..bde4080a936f1 100644
--- a/kernel/rcu/tree_exp.h
+++ b/kernel/rcu/tree_exp.h
@@ -334,15 +334,13 @@ fastpath:
  * Select the CPUs within the specified rcu_node that the upcoming
  * expedited grace period needs to wait for.
  */
-static void sync_rcu_exp_select_node_cpus(struct work_struct *wp)
+static void __sync_rcu_exp_select_node_cpus(struct rcu_exp_work *rewp)
 {
 	int cpu;
 	unsigned long flags;
 	unsigned long mask_ofl_test;
 	unsigned long mask_ofl_ipi;
 	int ret;
-	struct rcu_exp_work *rewp =
-		container_of(wp, struct rcu_exp_work, rew_work);
 	struct rcu_node *rnp = container_of(rewp, struct rcu_node, rew);
 
 	raw_spin_lock_irqsave_rcu_node(rnp, flags);
@@ -417,13 +415,119 @@ retry_ipi:
 		rcu_report_exp_cpu_mult(rnp, mask_ofl_test, false);
 }
 
+static void rcu_exp_sel_wait_wake(unsigned long s);
+
+#ifdef CONFIG_RCU_EXP_KTHREAD
+static void sync_rcu_exp_select_node_cpus(struct kthread_work *wp)
+{
+	struct rcu_exp_work *rewp =
+		container_of(wp, struct rcu_exp_work, rew_work);
+
+	__sync_rcu_exp_select_node_cpus(rewp);
+}
+
+static inline bool rcu_gp_par_worker_started(void)
+{
+	return !!READ_ONCE(rcu_exp_par_gp_kworker);
+}
+
+static inline void sync_rcu_exp_select_cpus_queue_work(struct rcu_node *rnp)
+{
+	kthread_init_work(&rnp->rew.rew_work, sync_rcu_exp_select_node_cpus);
+	/*
+	 * Use rcu_exp_par_gp_kworker, because flushing a work item from
+	 * another work item on the same kthread worker can result in
+	 * deadlock.
+	 */
+	kthread_queue_work(rcu_exp_par_gp_kworker, &rnp->rew.rew_work);
+}
+
+static inline void sync_rcu_exp_select_cpus_flush_work(struct rcu_node *rnp)
+{
+	kthread_flush_work(&rnp->rew.rew_work);
+}
+
+/*
+ * Work-queue handler to drive an expedited grace period forward.
+ */
+static void wait_rcu_exp_gp(struct kthread_work *wp)
+{
+	struct rcu_exp_work *rewp;
+
+	rewp = container_of(wp, struct rcu_exp_work, rew_work);
+	rcu_exp_sel_wait_wake(rewp->rew_s);
+}
+
+static inline void synchronize_rcu_expedited_queue_work(struct rcu_exp_work *rew)
+{
+	kthread_init_work(&rew->rew_work, wait_rcu_exp_gp);
+	kthread_queue_work(rcu_exp_gp_kworker, &rew->rew_work);
+}
+
+static inline void synchronize_rcu_expedited_destroy_work(struct rcu_exp_work *rew)
+{
+}
+#else /* !CONFIG_RCU_EXP_KTHREAD */
+static void sync_rcu_exp_select_node_cpus(struct work_struct *wp)
+{
+	struct rcu_exp_work *rewp =
+		container_of(wp, struct rcu_exp_work, rew_work);
+
+	__sync_rcu_exp_select_node_cpus(rewp);
+}
+
+static inline bool rcu_gp_par_worker_started(void)
+{
+	return !!READ_ONCE(rcu_par_gp_wq);
+}
+
+static inline void sync_rcu_exp_select_cpus_queue_work(struct rcu_node *rnp)
+{
+	int cpu = find_next_bit(&rnp->ffmask, BITS_PER_LONG, -1);
+
+	INIT_WORK(&rnp->rew.rew_work, sync_rcu_exp_select_node_cpus);
+	/* If all offline, queue the work on an unbound CPU. */
+	if (unlikely(cpu > rnp->grphi - rnp->grplo))
+		cpu = WORK_CPU_UNBOUND;
+	else
+		cpu += rnp->grplo;
+	queue_work_on(cpu, rcu_par_gp_wq, &rnp->rew.rew_work);
+}
+
+static inline void sync_rcu_exp_select_cpus_flush_work(struct rcu_node *rnp)
+{
+	flush_work(&rnp->rew.rew_work);
+}
+
+/*
+ * Work-queue handler to drive an expedited grace period forward.
+ */
+static void wait_rcu_exp_gp(struct work_struct *wp)
+{
+	struct rcu_exp_work *rewp;
+
+	rewp = container_of(wp, struct rcu_exp_work, rew_work);
+	rcu_exp_sel_wait_wake(rewp->rew_s);
+}
+
+static inline void synchronize_rcu_expedited_queue_work(struct rcu_exp_work *rew)
+{
+	INIT_WORK_ONSTACK(&rew->rew_work, wait_rcu_exp_gp);
+	queue_work(rcu_gp_wq, &rew->rew_work);
+}
+
+static inline void synchronize_rcu_expedited_destroy_work(struct rcu_exp_work *rew)
+{
+	destroy_work_on_stack(&rew->rew_work);
+}
+#endif /* CONFIG_RCU_EXP_KTHREAD */
+
 /*
  * Select the nodes that the upcoming expedited grace period needs
  * to wait for.
  */
 static void sync_rcu_exp_select_cpus(void)
 {
-	int cpu;
 	struct rcu_node *rnp;
 
 	trace_rcu_exp_grace_period(rcu_state.name, rcu_exp_gp_seq_endval(), TPS("reset"));
@@ -435,28 +539,21 @@ static void sync_rcu_exp_select_cpus(void)
 		rnp->exp_need_flush = false;
 		if (!READ_ONCE(rnp->expmask))
 			continue; /* Avoid early boot non-existent wq. */
-		if (!READ_ONCE(rcu_par_gp_wq) ||
+		if (!rcu_gp_par_worker_started() ||
 		    rcu_scheduler_active != RCU_SCHEDULER_RUNNING ||
 		    rcu_is_last_leaf_node(rnp)) {
-			/* No workqueues yet or last leaf, do direct call. */
+			/* No worker started yet or last leaf, do direct call. */
 			sync_rcu_exp_select_node_cpus(&rnp->rew.rew_work);
 			continue;
 		}
-		INIT_WORK(&rnp->rew.rew_work, sync_rcu_exp_select_node_cpus);
-		cpu = find_next_bit(&rnp->ffmask, BITS_PER_LONG, -1);
-		/* If all offline, queue the work on an unbound CPU. */
-		if (unlikely(cpu > rnp->grphi - rnp->grplo))
-			cpu = WORK_CPU_UNBOUND;
-		else
-			cpu += rnp->grplo;
-		queue_work_on(cpu, rcu_par_gp_wq, &rnp->rew.rew_work);
+		sync_rcu_exp_select_cpus_queue_work(rnp);
 		rnp->exp_need_flush = true;
 	}
 
-	/* Wait for workqueue jobs (if any) to complete. */
+	/* Wait for jobs (if any) to complete. */
 	rcu_for_each_leaf_node(rnp)
 		if (rnp->exp_need_flush)
-			flush_work(&rnp->rew.rew_work);
+			sync_rcu_exp_select_cpus_flush_work(rnp);
 }
 
 /*
@@ -619,17 +716,6 @@ static void rcu_exp_sel_wait_wake(unsigned long s)
 	rcu_exp_wait_wake(s);
 }
 
-/*
- * Work-queue handler to drive an expedited grace period forward.
- */
-static void wait_rcu_exp_gp(struct work_struct *wp)
-{
-	struct rcu_exp_work *rewp;
-
-	rewp = container_of(wp, struct rcu_exp_work, rew_work);
-	rcu_exp_sel_wait_wake(rewp->rew_s);
-}
-
 #ifdef CONFIG_PREEMPT_RCU
 
 /*
@@ -845,20 +931,19 @@ void synchronize_rcu_expedited(void)
 	} else {
 		/* Marshall arguments & schedule the expedited grace period. */
 		rew.rew_s = s;
-		INIT_WORK_ONSTACK(&rew.rew_work, wait_rcu_exp_gp);
-		queue_work(rcu_gp_wq, &rew.rew_work);
+		synchronize_rcu_expedited_queue_work(&rew);
 	}
 
 	/* Wait for expedited grace period to complete. */
 	rnp = rcu_get_root();
 	wait_event(rnp->exp_wq[rcu_seq_ctr(s) & 0x3],
 		   sync_exp_work_done(s));
-	smp_mb(); /* Workqueue actions happen before return. */
+	smp_mb(); /* Work actions happen before return. */
 
 	/* Let the next expedited grace period start. */
 	mutex_unlock(&rcu_state.exp_mutex);
 
 	if (likely(!boottime))
-		destroy_work_on_stack(&rew.rew_work);
+		synchronize_rcu_expedited_destroy_work(&rew);
 }
 EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
-- 
GitLab


From 03f40d52522a0a029a26b59a8fe7dcd297d0d193 Mon Sep 17 00:00:00 2001
From: Rick Yiu <rickyiu@google.com>
Date: Tue, 19 Apr 2022 17:56:31 +0800
Subject: [PATCH 4757/4878] ANDROID: Update the ABI representation

Leaf changes summary: 4 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 2 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 2 Added variables

2 Added functions:

  [A] 'function int __traceiter_android_rvh_set_task_cpu(void*, task_struct*, unsigned int)'
  [A] 'function int __traceiter_android_rvh_update_rt_rq_load_avg(void*, u64, rq*, task_struct*, int)'

2 Added variables:

  [A] 'tracepoint __tracepoint_android_rvh_set_task_cpu'
  [A] 'tracepoint __tracepoint_android_rvh_update_rt_rq_load_avg'

Bug: 201261299
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ie1265a9d638e7826b6185bfde0ab8f900b51c6b0
---
 android/abi_gki_aarch64.xml     | 20 ++++++++++++++++++++
 android/abi_gki_aarch64_generic |  4 ++++
 2 files changed, 24 insertions(+)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 0908aca8fbc37..949250658a19b 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -233,6 +233,7 @@
       <elf-symbol name='__traceiter_android_rvh_select_task_rq_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf6406a68'/>
       <elf-symbol name='__traceiter_android_rvh_select_task_rq_rt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xbfb6c27d'/>
       <elf-symbol name='__traceiter_android_rvh_set_iowait' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7a145935'/>
+      <elf-symbol name='__traceiter_android_rvh_set_task_cpu' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8e6090a9'/>
       <elf-symbol name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x760027e1'/>
       <elf-symbol name='__traceiter_android_rvh_typec_tcpci_get_vbus' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x37614c90'/>
       <elf-symbol name='__traceiter_android_rvh_uclamp_eff_get' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb502e3e'/>
@@ -241,6 +242,7 @@
       <elf-symbol name='__traceiter_android_rvh_ufs_reprogram_all_keys' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xac38cf23'/>
       <elf-symbol name='__traceiter_android_rvh_update_blocked_fair' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7d9b54a'/>
       <elf-symbol name='__traceiter_android_rvh_update_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeff8bb86'/>
+      <elf-symbol name='__traceiter_android_rvh_update_rt_rq_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xeef26283'/>
       <elf-symbol name='__traceiter_android_rvh_util_est_update' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7f6d539a'/>
       <elf-symbol name='__traceiter_android_vh___get_user_pages_remote' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4f0eea4f'/>
       <elf-symbol name='__traceiter_android_vh_aes_decrypt' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb0d1574b'/>
@@ -3713,6 +3715,7 @@
       <elf-symbol name='__tracepoint_android_rvh_select_task_rq_fair' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bfae7d4'/>
       <elf-symbol name='__tracepoint_android_rvh_select_task_rq_rt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa1f10509'/>
       <elf-symbol name='__tracepoint_android_rvh_set_iowait' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x343470a7'/>
+      <elf-symbol name='__tracepoint_android_rvh_set_task_cpu' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb7e6c73'/>
       <elf-symbol name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4b7c8cf3'/>
       <elf-symbol name='__tracepoint_android_rvh_typec_tcpci_get_vbus' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x853bba97'/>
       <elf-symbol name='__tracepoint_android_rvh_uclamp_eff_get' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x76a8e7d1'/>
@@ -3721,6 +3724,7 @@
       <elf-symbol name='__tracepoint_android_rvh_ufs_reprogram_all_keys' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa8c77d76'/>
       <elf-symbol name='__tracepoint_android_rvh_update_blocked_fair' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x6d3cb3aa'/>
       <elf-symbol name='__tracepoint_android_rvh_update_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x8ae1dc28'/>
+      <elf-symbol name='__tracepoint_android_rvh_update_rt_rq_load_avg' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x4bcdd224'/>
       <elf-symbol name='__tracepoint_android_rvh_util_est_update' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb2c941f9'/>
       <elf-symbol name='__tracepoint_android_vh___get_user_pages_remote' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa0375f2c'/>
       <elf-symbol name='__tracepoint_android_vh_aes_decrypt' size='72' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x64eaf879'/>
@@ -106702,6 +106706,12 @@
         <parameter type-id='7292109c' name='should_iowait_boost' filepath='include/trace/hooks/sched.h' line='119' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_set_task_cpu' mangled-name='__traceiter_android_rvh_set_task_cpu' filepath='include/trace/hooks/sched.h' line='136' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_set_task_cpu'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='136' column='1'/>
+        <parameter type-id='f23e2572' name='p' filepath='include/trace/hooks/sched.h' line='136' column='1'/>
+        <parameter type-id='f0981eeb' name='new_cpu' filepath='include/trace/hooks/sched.h' line='136' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' mangled-name='__traceiter_android_rvh_typec_tcpci_chk_contaminant' filepath='include/trace/hooks/typec.h' line='31' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_typec_tcpci_chk_contaminant'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/typec.h' line='31' column='1'/>
         <parameter type-id='eefe253e' name='tcpci' filepath='include/trace/hooks/typec.h' line='31' column='1'/>
@@ -106757,6 +106767,14 @@
         <parameter type-id='ff2b3d10' name='se' filepath='include/trace/hooks/sched.h' line='415' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__traceiter_android_rvh_update_rt_rq_load_avg' mangled-name='__traceiter_android_rvh_update_rt_rq_load_avg' filepath='include/trace/hooks/sched.h' line='427' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_update_rt_rq_load_avg'>
+        <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='427' column='1'/>
+        <parameter type-id='91ce1af9' name='now' filepath='include/trace/hooks/sched.h' line='427' column='1'/>
+        <parameter type-id='6ed6b432' name='rq' filepath='include/trace/hooks/sched.h' line='427' column='1'/>
+        <parameter type-id='f23e2572' name='tsk' filepath='include/trace/hooks/sched.h' line='427' column='1'/>
+        <parameter type-id='95e97e5e' name='running' filepath='include/trace/hooks/sched.h' line='427' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_util_est_update' mangled-name='__traceiter_android_rvh_util_est_update' filepath='include/trace/hooks/sched.h' line='316' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_util_est_update'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
         <parameter type-id='a6892387' name='cfs_rq' filepath='include/trace/hooks/sched.h' line='316' column='1'/>
@@ -107256,6 +107274,7 @@
       <var-decl name='__tracepoint_android_rvh_select_task_rq_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='13' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_fair'/>
       <var-decl name='__tracepoint_android_rvh_select_task_rq_rt' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_select_task_rq_rt' visibility='default' filepath='include/trace/hooks/sched.h' line='17' column='1' elf-symbol-id='__tracepoint_android_rvh_select_task_rq_rt'/>
       <var-decl name='__tracepoint_android_rvh_set_iowait' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_set_iowait' visibility='default' filepath='include/trace/hooks/sched.h' line='119' column='1' elf-symbol-id='__tracepoint_android_rvh_set_iowait'/>
+      <var-decl name='__tracepoint_android_rvh_set_task_cpu' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_set_task_cpu' visibility='default' filepath='include/trace/hooks/sched.h' line='136' column='1' elf-symbol-id='__tracepoint_android_rvh_set_task_cpu'/>
       <var-decl name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_chk_contaminant' visibility='default' filepath='include/trace/hooks/typec.h' line='31' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_chk_contaminant'/>
       <var-decl name='__tracepoint_android_rvh_typec_tcpci_get_vbus' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_typec_tcpci_get_vbus' visibility='default' filepath='include/trace/hooks/typec.h' line='42' column='1' elf-symbol-id='__tracepoint_android_rvh_typec_tcpci_get_vbus'/>
       <var-decl name='__tracepoint_android_rvh_uclamp_eff_get' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_uclamp_eff_get' visibility='default' filepath='include/trace/hooks/sched.h' line='285' column='1' elf-symbol-id='__tracepoint_android_rvh_uclamp_eff_get'/>
@@ -107264,6 +107283,7 @@
       <var-decl name='__tracepoint_android_rvh_ufs_reprogram_all_keys' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_ufs_reprogram_all_keys' visibility='default' filepath='include/trace/hooks/ufshcd.h' line='25' column='1' elf-symbol-id='__tracepoint_android_rvh_ufs_reprogram_all_keys'/>
       <var-decl name='__tracepoint_android_rvh_update_blocked_fair' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_blocked_fair' visibility='default' filepath='include/trace/hooks/sched.h' line='423' column='1' elf-symbol-id='__tracepoint_android_rvh_update_blocked_fair'/>
       <var-decl name='__tracepoint_android_rvh_update_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='415' column='1' elf-symbol-id='__tracepoint_android_rvh_update_load_avg'/>
+      <var-decl name='__tracepoint_android_rvh_update_rt_rq_load_avg' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_update_rt_rq_load_avg' visibility='default' filepath='include/trace/hooks/sched.h' line='427' column='1' elf-symbol-id='__tracepoint_android_rvh_update_rt_rq_load_avg'/>
       <var-decl name='__tracepoint_android_rvh_util_est_update' type-id='4ca0c298' mangled-name='__tracepoint_android_rvh_util_est_update' visibility='default' filepath='include/trace/hooks/sched.h' line='316' column='1' elf-symbol-id='__tracepoint_android_rvh_util_est_update'/>
       <var-decl name='__tracepoint_android_vh___get_user_pages_remote' type-id='4ca0c298' mangled-name='__tracepoint_android_vh___get_user_pages_remote' visibility='default' filepath='include/trace/hooks/gup.h' line='16' column='1' elf-symbol-id='__tracepoint_android_vh___get_user_pages_remote'/>
       <var-decl name='__tracepoint_android_vh_aes_decrypt' type-id='4ca0c298' mangled-name='__tracepoint_android_vh_aes_decrypt' visibility='default' filepath='include/trace/hooks/fips140.h' line='40' column='1' elf-symbol-id='__tracepoint_android_vh_aes_decrypt'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index ec604226c84b7..4650e358a6071 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2193,6 +2193,7 @@
   __traceiter_android_rvh_select_task_rq_fair
   __traceiter_android_rvh_select_task_rq_rt
   __traceiter_android_rvh_set_iowait
+  __traceiter_android_rvh_set_task_cpu
   __traceiter_android_rvh_typec_tcpci_chk_contaminant
   __traceiter_android_rvh_typec_tcpci_get_vbus
   __traceiter_android_rvh_uclamp_eff_get
@@ -2201,6 +2202,7 @@
   __traceiter_android_rvh_ufs_reprogram_all_keys
   __traceiter_android_rvh_update_blocked_fair
   __traceiter_android_rvh_update_load_avg
+  __traceiter_android_rvh_update_rt_rq_load_avg
   __traceiter_android_rvh_util_est_update
   __traceiter_android_vh_arch_set_freq_scale
   __traceiter_android_vh_cma_alloc_finish
@@ -2295,6 +2297,7 @@
   __tracepoint_android_rvh_select_task_rq_fair
   __tracepoint_android_rvh_select_task_rq_rt
   __tracepoint_android_rvh_set_iowait
+  __tracepoint_android_rvh_set_task_cpu
   __tracepoint_android_rvh_typec_tcpci_chk_contaminant
   __tracepoint_android_rvh_typec_tcpci_get_vbus
   __tracepoint_android_rvh_uclamp_eff_get
@@ -2303,6 +2306,7 @@
   __tracepoint_android_rvh_ufs_reprogram_all_keys
   __tracepoint_android_rvh_update_blocked_fair
   __tracepoint_android_rvh_update_load_avg
+  __tracepoint_android_rvh_update_rt_rq_load_avg
   __tracepoint_android_rvh_util_est_update
   __tracepoint_android_vh_arch_set_freq_scale
   __tracepoint_android_vh_cma_alloc_finish
-- 
GitLab


From 3b508e8fe48b14efde919593c4d893f7d736860f Mon Sep 17 00:00:00 2001
From: Sven Peter <sven@svenpeter.dev>
Date: Mon, 7 Jun 2021 08:17:51 +0200
Subject: [PATCH 4758/4878] UPSTREAM: usb: dwc3: support 64 bit DMA in platform
 driver

Currently, the dwc3 platform driver does not explicitly ask for
a DMA mask. This makes it fall back to the default 32-bit mask which
breaks the driver on systems that only have RAM starting above the
first 4G like the Apple M1 SoC.

Fix this by calling dma_set_mask_and_coherent with a 64bit mask.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210607061751.89752-1-sven@svenpeter.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

(cherry picked from commit 45d39448b4d0260743f25d88fd929451ec8296f2)

Bug: 228575378
Signed-off-by: Albert Wang <albertccwang@google.com>
Change-Id: Icd994fde819fdd6fb0896d1bec1777fb73f454ee
---
 drivers/usb/dwc3/core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index be4690bcf1302..8da907c951b63 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1566,6 +1566,10 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	dwc3_get_properties(dwc);
 
+	ret = dma_set_mask_and_coherent(dwc->sysdev, DMA_BIT_MASK(64));
+	if (ret)
+		return ret;
+
 	dwc->reset = devm_reset_control_array_get_optional_shared(dev);
 	if (IS_ERR(dwc->reset))
 		return PTR_ERR(dwc->reset);
-- 
GitLab


From f60a0b328540fec6c2fe65d9f5a45ca40156b113 Mon Sep 17 00:00:00 2001
From: Fabio Aiuto <fabioaiuto83@gmail.com>
Date: Sat, 13 Nov 2021 15:29:59 +0100
Subject: [PATCH 4759/4878] UPSTREAM: usb: dwc3: leave default DMA for PCI
 devices

in case of a PCI dwc3 controller, leave the default DMA
mask. Calling of a 64 bit DMA mask breaks the driver on
cherrytrail based tablets like Cyberbook T116.

Fixes: 45d39448b4d0 ("usb: dwc3: support 64 bit DMA in platform driver")
Cc: stable <stable@vger.kernel.org>
Reported-by: Hans De Goede <hdegoede@redhat.com>
Tested-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/20211113142959.27191-1-fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


(cherry picked from commit 47ce45906ca9870cf5267261f155fb7c70307cf0)

Bug: 228575378
Signed-off-by: Albert Wang <albertccwang@google.com>
Change-Id: Id4e73116d4f8f603b8282e7bd7717cf28b5a3bf2
---
 drivers/usb/dwc3/core.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 8da907c951b63..0bd2f41f13ba0 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1566,9 +1566,11 @@ static int dwc3_probe(struct platform_device *pdev)
 
 	dwc3_get_properties(dwc);
 
-	ret = dma_set_mask_and_coherent(dwc->sysdev, DMA_BIT_MASK(64));
-	if (ret)
-		return ret;
+	if (!dwc->sysdev_is_parent) {
+		ret = dma_set_mask_and_coherent(dwc->sysdev, DMA_BIT_MASK(64));
+		if (ret)
+			return ret;
+	}
 
 	dwc->reset = devm_reset_control_array_get_optional_shared(dev);
 	if (IS_ERR(dwc->reset))
-- 
GitLab


From c098614509ef07f027611b2066d8f0b95b2be065 Mon Sep 17 00:00:00 2001
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: Tue, 12 Apr 2022 19:34:21 +0200
Subject: [PATCH 4760/4878] FROMLIST: kasan: fix hw tags enablement when KUNIT
 tests are disabled

Kasan enables hw tags via kasan_enable_tagging() which based on the mode
passed via kernel command line selects the correct hw backend.
kasan_enable_tagging() is meant to be invoked indirectly via the cpu
features framework of the architectures that support these backends.
Currently the invocation of this function is guarded by
CONFIG_KASAN_KUNIT_TEST which allows the enablement of the correct backend
only when KUNIT tests are enabled in the kernel.

This inconsistency was introduced in commit:

  ed6d74446cbf ("kasan: test: support async (again) and asymm modes for HW_TAGS")

... and prevents to enable MTE on arm64 when KUNIT tests for kasan hw_tags are
disabled.

Fix the issue making sure that the CONFIG_KASAN_KUNIT_TEST guard does not
prevent the correct invocation of kasan_enable_tagging().

Link: https://lkml.kernel.org/r/20220408124323.10028-1-vincenzo.frascino@arm.com
Fixes: ed6d74446cbf ("kasan: test: support async (again) and asymm modes for HW_TAGS")
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/all/20220408124323.10028-1-vincenzo.frascino@arm.com/T/#u
Bug: 217222520
Change-Id: Ib4f05d74e091db57d2a8d5000d67137105d59a4c
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/hw_tags.c |  5 +++--
 mm/kasan/kasan.h   | 10 ++++++----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/mm/kasan/hw_tags.c b/mm/kasan/hw_tags.c
index 07a76c46daa5a..9e1b6544bfa8e 100644
--- a/mm/kasan/hw_tags.c
+++ b/mm/kasan/hw_tags.c
@@ -336,8 +336,6 @@ void __kasan_poison_vmalloc(const void *start, unsigned long size)
 
 #endif
 
-#if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
-
 void kasan_enable_tagging(void)
 {
 	if (kasan_arg_mode == KASAN_ARG_MODE_ASYNC)
@@ -347,6 +345,9 @@ void kasan_enable_tagging(void)
 	else
 		hw_enable_tagging_sync();
 }
+
+#if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
+
 EXPORT_SYMBOL_GPL(kasan_enable_tagging);
 
 void kasan_force_async_fault(void)
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 4791d080f3f31..e6417aca1ebf0 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -349,25 +349,27 @@ static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
 #define hw_set_mem_tag_range(addr, size, tag, init) \
 			arch_set_mem_tag_range((addr), (size), (tag), (init))
 
+void kasan_enable_tagging(void);
+
 #else /* CONFIG_KASAN_HW_TAGS */
 
 #define hw_enable_tagging_sync()
 #define hw_enable_tagging_async()
 #define hw_enable_tagging_asymm()
 
+static inline void kasan_enable_tagging(void) { }
+
 #endif /* CONFIG_KASAN_HW_TAGS */
 
 #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
 
-void kasan_enable_tagging(void);
 void kasan_force_async_fault(void);
 
-#else /* CONFIG_KASAN_HW_TAGS || CONFIG_KASAN_KUNIT_TEST */
+#else /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */
 
-static inline void kasan_enable_tagging(void) { }
 static inline void kasan_force_async_fault(void) { }
 
-#endif /* CONFIG_KASAN_HW_TAGS || CONFIG_KASAN_KUNIT_TEST */
+#endif /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */
 
 #ifdef CONFIG_KASAN_SW_TAGS
 u8 kasan_random_tag(void);
-- 
GitLab


From a1013fd19b22ec3e88ccd297ac88183446ee9de5 Mon Sep 17 00:00:00 2001
From: Andrey Konovalov <andreyknvl@google.com>
Date: Tue, 12 Apr 2022 19:36:52 +0200
Subject: [PATCH 4761/4878] FROMLIST: kasan: mark KASAN_VMALLOC flags as
 kasan_vmalloc_flags_t

Fix sparse warning:

mm/kasan/shadow.c:496:15: warning: restricted kasan_vmalloc_flags_t degrades to integer

Link: https://lkml.kernel.org/r/52d8fccdd3a48d4bdfd0ff522553bac2a13f1579.1649351254.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/all/52d8fccdd3a48d4bdfd0ff522553bac2a13f1579.1649351254.git.andreyknvl@google.com/T/#u
Bug: 217222520
Change-Id: I04133e8e9610b81fd0c856ece4f566110094bcb1
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 include/linux/kasan.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 47775e893e6ba..90c54edfe5565 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -21,10 +21,10 @@ struct task_struct;
 
 typedef unsigned int __bitwise kasan_vmalloc_flags_t;
 
-#define KASAN_VMALLOC_NONE		0x00u
-#define KASAN_VMALLOC_INIT		0x01u
-#define KASAN_VMALLOC_VM_ALLOC		0x02u
-#define KASAN_VMALLOC_PROT_NORMAL	0x04u
+#define KASAN_VMALLOC_NONE		((__force kasan_vmalloc_flags_t)0x00u)
+#define KASAN_VMALLOC_INIT		((__force kasan_vmalloc_flags_t)0x01u)
+#define KASAN_VMALLOC_VM_ALLOC		((__force kasan_vmalloc_flags_t)0x02u)
+#define KASAN_VMALLOC_PROT_NORMAL	((__force kasan_vmalloc_flags_t)0x04u)
 
 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
 
-- 
GitLab


From 65533e021265bfa622fd9f9276bc425e6d78c92b Mon Sep 17 00:00:00 2001
From: Midas Chien <midaschieh@google.com>
Date: Tue, 19 Apr 2022 11:34:22 +0800
Subject: [PATCH 4762/4878] ANDROID: Update the ABI representation

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 1 Added variable

1 Added variable:

  [A] 'int console_set_on_cmdline'

Bug: 202781851
Signed-off-by: Midas Chien <midaschieh@google.com>
Change-Id: I302b16e6eeec60b070721c54980d989fb1d31c26
---
 android/abi_gki_aarch64.xml     | 46 +++++++++++++++++----------------
 android/abi_gki_aarch64_generic |  1 +
 2 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index 949250658a19b..d12a8a11fffe2 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -3806,6 +3806,7 @@
       <elf-symbol name='bpf_stats_enabled_key' size='16' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xf84bd6ee'/>
       <elf-symbol name='clk_fixed_factor_ops' size='216' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb94d81d6'/>
       <elf-symbol name='clk_fixed_rate_ops' size='216' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x5299a868'/>
+      <elf-symbol name='console_set_on_cmdline' size='4' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x2459bbcc'/>
       <elf-symbol name='console_suspend_enabled' size='1' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x366307a'/>
       <elf-symbol name='contig_page_data' size='6976' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x7007215'/>
       <elf-symbol name='cpu_all_bits' size='8' type='object-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xd994ecee'/>
@@ -19658,7 +19659,7 @@
           <var-decl name='flags' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='105' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='48'>
-          <var-decl name='formula' type-id='ac5ab5bd' visibility='default' filepath='include/drm/drm_edid.h' line='124' column='1'/>
+          <var-decl name='formula' type-id='ac5ab5bc' visibility='default' filepath='include/drm/drm_edid.h' line='124' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='154f1323' size-in-bits='64' id='2d642297'/>
@@ -26682,7 +26683,7 @@
           <var-decl name='pad2' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='150' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='24'>
-          <var-decl name='data' type-id='ac5ab5be' visibility='default' filepath='include/drm/drm_edid.h' line='157' column='1'/>
+          <var-decl name='data' type-id='ac5ab5bd' visibility='default' filepath='include/drm/drm_edid.h' line='157' column='1'/>
         </data-member>
       </class-decl>
       <function-type size-in-bits='64' id='419202b8'>
@@ -39411,7 +39412,7 @@
           <var-decl name='sequence' type-id='91ce1af9' visibility='default' filepath='include/drm/drm_vblank.h' line='54' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='704'>
-          <var-decl name='event' type-id='ac5ab5c0' visibility='default' filepath='include/drm/drm_vblank.h' line='78' column='1'/>
+          <var-decl name='event' type-id='ac5ab5bf' visibility='default' filepath='include/drm/drm_vblank.h' line='78' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='8a324762' size-in-bits='64' id='6430463c'/>
@@ -67374,18 +67375,7 @@
           <var-decl name='' type-id='e7f43f87' visibility='default' filepath='drivers/base/regmap/internal.h' line='52' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dma-fence.h' line='84' column='1' id='ac5ab5bc'>
-        <data-member access='public'>
-          <var-decl name='cb_list' type-id='72f469ec' visibility='default' filepath='include/linux/dma-fence.h' line='85' column='1'/>
-        </data-member>
-        <data-member access='public'>
-          <var-decl name='timestamp' type-id='fbc017ef' visibility='default' filepath='include/linux/dma-fence.h' line='87' column='1'/>
-        </data-member>
-        <data-member access='public'>
-          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/dma-fence.h' line='89' column='1'/>
-        </data-member>
-      </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='56' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='106' column='1' id='ac5ab5bd'>
+      <union-decl name='__anonymous_union__' size-in-bits='56' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='106' column='1' id='ac5ab5bc'>
         <data-member access='public'>
           <var-decl name='gtf2' type-id='e7f43f93' visibility='default' filepath='include/drm/drm_edid.h' line='114' column='1'/>
         </data-member>
@@ -67393,7 +67383,7 @@
           <var-decl name='cvt' type-id='e7f43f94' visibility='default' filepath='include/drm/drm_edid.h' line='123' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='104' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='151' column='1' id='ac5ab5be'>
+      <union-decl name='__anonymous_union__' size-in-bits='104' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='151' column='1' id='ac5ab5bd'>
         <data-member access='public'>
           <var-decl name='str' type-id='9839ad2e' visibility='default' filepath='include/drm/drm_edid.h' line='152' column='1'/>
         </data-member>
@@ -67410,7 +67400,7 @@
           <var-decl name='cvt' type-id='e6001147' visibility='default' filepath='include/drm/drm_edid.h' line='156' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='172' column='1' id='ac5ab5bf'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='172' column='1' id='ac5ab5be'>
         <data-member access='public'>
           <var-decl name='pixel_data' type-id='42c5f701' visibility='default' filepath='include/drm/drm_edid.h' line='173' column='1'/>
         </data-member>
@@ -67418,7 +67408,7 @@
           <var-decl name='other_data' type-id='4191437e' visibility='default' filepath='include/drm/drm_edid.h' line='174' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/drm/drm_vblank.h' line='58' column='1' id='ac5ab5c0'>
+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/drm/drm_vblank.h' line='58' column='1' id='ac5ab5bf'>
         <data-member access='public'>
           <var-decl name='base' type-id='9857a465' visibility='default' filepath='include/drm/drm_vblank.h' line='62' column='1'/>
         </data-member>
@@ -67429,11 +67419,22 @@
           <var-decl name='seq' type-id='3aca1eaa' visibility='default' filepath='include/drm/drm_vblank.h' line='77' column='1'/>
         </data-member>
       </union-decl>
-      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/hdmi.h' line='386' column='1' id='ac5ab5c1'>
+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/hdmi.h' line='386' column='1' id='ac5ab5c0'>
         <data-member access='public'>
           <var-decl name='hdmi_type1' type-id='4ba022f8' visibility='default' filepath='include/linux/hdmi.h' line='387' column='1'/>
         </data-member>
       </union-decl>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/linux/dma-fence.h' line='84' column='1' id='ac5ab5c1'>
+        <data-member access='public'>
+          <var-decl name='cb_list' type-id='72f469ec' visibility='default' filepath='include/linux/dma-fence.h' line='85' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='timestamp' type-id='fbc017ef' visibility='default' filepath='include/linux/dma-fence.h' line='87' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/dma-fence.h' line='89' column='1'/>
+        </data-member>
+      </union-decl>
       <union-decl name='__anonymous_union__' size-in-bits='32' is-anonymous='yes' visibility='default' filepath='include/drm/drm_fourcc.h' line='72' column='1' id='ac5ab5c2'>
         <data-member access='public'>
           <var-decl name='cpp' type-id='931565be' visibility='default' filepath='include/drm/drm_fourcc.h' line='81' column='1'/>
@@ -72218,7 +72219,7 @@
           <var-decl name='metadata_type' type-id='3f1a6b60' visibility='default' filepath='include/linux/hdmi.h' line='382' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='' type-id='ac5ab5c1' visibility='default' filepath='include/linux/hdmi.h' line='386' column='1'/>
+          <var-decl name='' type-id='ac5ab5c0' visibility='default' filepath='include/linux/hdmi.h' line='386' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='pr_ops' is-struct='yes' visibility='default' is-declaration-only='yes' id='b45c773c'/>
@@ -83289,7 +83290,7 @@
           <var-decl name='ops' type-id='13d85783' visibility='default' filepath='include/linux/dma-fence.h' line='67' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='128'>
-          <var-decl name='' type-id='ac5ab5bc' visibility='default' filepath='include/linux/dma-fence.h' line='84' column='1'/>
+          <var-decl name='' type-id='ac5ab5c1' visibility='default' filepath='include/linux/dma-fence.h' line='84' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
           <var-decl name='context' type-id='91ce1af9' visibility='default' filepath='include/linux/dma-fence.h' line='91' column='1'/>
@@ -84809,7 +84810,7 @@
           <var-decl name='pixel_clock' type-id='23119536' visibility='default' filepath='include/drm/drm_edid.h' line='171' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='16'>
-          <var-decl name='data' type-id='ac5ab5bf' visibility='default' filepath='include/drm/drm_edid.h' line='175' column='1'/>
+          <var-decl name='data' type-id='ac5ab5be' visibility='default' filepath='include/drm/drm_edid.h' line='175' column='1'/>
         </data-member>
       </class-decl>
       <function-type size-in-bits='64' id='d31161f1'>
@@ -109394,6 +109395,7 @@
         <parameter type-id='598755ca' name='subsys' filepath='fs/configfs/dir.c' line='1947' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
+      <var-decl name='console_set_on_cmdline' type-id='95e97e5e' mangled-name='console_set_on_cmdline' visibility='default' filepath='kernel/printk/printk.c' line='287' column='1' elf-symbol-id='console_set_on_cmdline'/>
       <var-decl name='console_suspend_enabled' type-id='b50a4934' mangled-name='console_suspend_enabled' visibility='default' filepath='kernel/printk/printk.c' line='2287' column='1' elf-symbol-id='console_suspend_enabled'/>
       <function-decl name='console_trylock' mangled-name='console_trylock' filepath='kernel/printk/printk.c' line='2378' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='console_trylock'>
         <return type-id='95e97e5e'/>
diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 4650e358a6071..4468cab1e12a3 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -240,6 +240,7 @@
   config_group_init_type_name
   config_item_init_type_name
   config_item_put
+  console_set_on_cmdline
   console_suspend_enabled
   console_trylock
   console_unlock
-- 
GitLab


From 92c8c21ad0ce3b3380d01d7a15d65132e81ed7cf Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 11 Apr 2022 11:42:03 +0200
Subject: [PATCH 4763/4878] BACKPORT: nl80211: correctly check
 NL80211_ATTR_REG_ALPHA2 size

commit 6624bb34b4eb19f715db9908cca00122748765d7 upstream.

We need this to be at least two bytes, so we can access
alpha2[0] and alpha2[1]. It may be three in case some
userspace used NUL-termination since it was NLA_STRING
(and we also push it out with NUL-termination).

Cc: stable@vger.kernel.org
Reported-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220411114201.fd4a31f06541.Ie7ff4be2cf348d8cc28ed0d626fc54becf7ea799@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I6f2338c409076f0960bb7305cee4959a22aa9280
---
 net/wireless/nl80211.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4ed99f0bcae99..5d8959a5e7608 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -475,7 +475,8 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 				   .len = IEEE80211_MAX_MESH_ID_LEN },
 	[NL80211_ATTR_MPATH_NEXT_HOP] = NLA_POLICY_ETH_ADDR_COMPAT,
 
-	[NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
+	/* allow 3 for NUL-termination, we used to declare this NLA_STRING */
+	[NL80211_ATTR_REG_ALPHA2] = NLA_POLICY_RANGE(NLA_BINARY, 2, 3),
 	[NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
 
 	[NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
-- 
GitLab


From 9a5023967b4d2b0b01880cdc325d03b7d5863768 Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 30 Mar 2022 15:19:00 -0700
Subject: [PATCH 4764/4878] ANDROID: fuse-bpf: Use fuse_bpf_args in uapi

fuse_args is not suitable for use in the uapi - it is not stable, and
contains internal pointers. Replace with stable equivalent.

The end_offset values are currently unused and unset, but will be used
in a follow up patch by the verifier.

Test: fuse_test, atest ScopedStorageDeviceTest pass
Bug: 202785178
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ic1c12f9706aeae233cc30a0d68ed2533030e485b
---
 fs/fuse/backing.c                             | 394 ++++++++++--------
 fs/fuse/fuse_i.h                              | 248 ++++++-----
 include/linux/bpf_types.h                     |   2 +-
 include/uapi/linux/fuse.h                     |  50 +--
 kernel/bpf/bpf_fuse.c                         |   6 +-
 .../selftests/filesystems/fuse/fd_bpf.c       |   2 +-
 .../selftests/filesystems/fuse/test_bpf.c     |  12 +-
 7 files changed, 402 insertions(+), 312 deletions(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index fd3831472a2e0..2959a6944c1a0 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -97,7 +97,7 @@ out:
 	return bpf_prog;
 }
 
-int fuse_open_initialize(struct fuse_args *fa, struct fuse_open_io *foio,
+int fuse_open_initialize(struct fuse_bpf_args *fa, struct fuse_open_io *foio,
 			 struct inode *inode, struct file *file, bool isdir)
 {
 	foio->foi = (struct fuse_open_in) {
@@ -106,16 +106,16 @@ int fuse_open_initialize(struct fuse_args *fa, struct fuse_open_io *foio,
 
 	foio->foo = (struct fuse_open_out) {0};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(inode)->nodeid,
 		.opcode = isdir ? FUSE_OPENDIR : FUSE_OPEN,
 		.in_numargs = 1,
 		.out_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(foio->foi),
 			.value = &foio->foi,
 		},
-		.out_args[0] = (struct fuse_arg) {
+		.out_args[0] = (struct fuse_bpf_arg) {
 			.size = sizeof(foio->foo),
 			.value = &foio->foo,
 		},
@@ -124,7 +124,7 @@ int fuse_open_initialize(struct fuse_args *fa, struct fuse_open_io *foio,
 	return 0;
 }
 
-int fuse_open_backing(struct fuse_args *fa,
+int fuse_open_backing(struct fuse_bpf_args *fa,
 		      struct inode *inode, struct file *file, bool isdir)
 {
 	struct fuse_mount *fm = get_fuse_mount(inode);
@@ -175,7 +175,7 @@ int fuse_open_backing(struct fuse_args *fa,
 	return 0;
 }
 
-void *fuse_open_finalize(struct fuse_args *fa,
+void *fuse_open_finalize(struct fuse_bpf_args *fa,
 		       struct inode *inode, struct file *file, bool isdir)
 {
 	struct fuse_file *ff = file->private_data;
@@ -187,7 +187,7 @@ void *fuse_open_finalize(struct fuse_args *fa,
 }
 
 int fuse_create_open_initialize(
-		struct fuse_args *fa, struct fuse_create_open_io *fcoio,
+		struct fuse_bpf_args *fa, struct fuse_create_open_io *fcoio,
 		struct inode *dir, struct dentry *entry,
 		struct file *file, unsigned int flags, umode_t mode)
 {
@@ -199,24 +199,24 @@ int fuse_create_open_initialize(
 	fcoio->feo = (struct fuse_entry_out) {0};
 	fcoio->foo = (struct fuse_open_out) {0};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(dir),
 		.opcode = FUSE_CREATE,
 		.in_numargs = 2,
 		.out_numargs = 2,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(fcoio->fci),
 			.value = &fcoio->fci,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
-		.out_args[0] = (struct fuse_arg) {
+		.out_args[0] = (struct fuse_bpf_arg) {
 			.size = sizeof(fcoio->feo),
 			.value = &fcoio->feo,
 		},
-		.out_args[1] = (struct fuse_arg) {
+		.out_args[1] = (struct fuse_bpf_arg) {
 			.size = sizeof(fcoio->foo),
 			.value = &fcoio->foo,
 		},
@@ -251,7 +251,7 @@ static int fuse_open_file_backing(struct inode *inode, struct file *file)
 }
 
 int fuse_create_open_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry,
 		struct file *file, unsigned int flags, umode_t mode)
 {
@@ -321,7 +321,7 @@ out:
 }
 
 void *fuse_create_open_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry,
 		struct file *file, unsigned int flags, umode_t mode)
 {
@@ -337,7 +337,7 @@ void *fuse_create_open_finalize(
 	return 0;
 }
 
-int fuse_release_initialize(struct fuse_args *fa, struct fuse_release_in *fri,
+int fuse_release_initialize(struct fuse_bpf_args *fa, struct fuse_release_in *fri,
 			    struct inode *inode, struct file *file)
 {
 	struct fuse_file *fuse_file = file->private_data;
@@ -349,7 +349,7 @@ int fuse_release_initialize(struct fuse_args *fa, struct fuse_release_in *fri,
 		.fh = ((struct fuse_file *)(file->private_data))->fh,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(inode)->nodeid,
 		.opcode = FUSE_RELEASE,
 		.in_numargs = 1,
@@ -360,7 +360,7 @@ int fuse_release_initialize(struct fuse_args *fa, struct fuse_release_in *fri,
 	return 0;
 }
 
-int fuse_releasedir_initialize(struct fuse_args *fa,
+int fuse_releasedir_initialize(struct fuse_bpf_args *fa,
 			struct fuse_release_in *fri,
 			struct inode *inode, struct file *file)
 {
@@ -373,7 +373,7 @@ int fuse_releasedir_initialize(struct fuse_args *fa,
 		.fh = ((struct fuse_file *)(file->private_data))->fh,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(inode)->nodeid,
 		.opcode = FUSE_RELEASEDIR,
 		.in_numargs = 1,
@@ -384,20 +384,20 @@ int fuse_releasedir_initialize(struct fuse_args *fa,
 	return 0;
 }
 
-int fuse_release_backing(struct fuse_args *fa,
+int fuse_release_backing(struct fuse_bpf_args *fa,
 			 struct inode *inode, struct file *file)
 {
 	return 0;
 }
 
-void *fuse_release_finalize(struct fuse_args *fa,
+void *fuse_release_finalize(struct fuse_bpf_args *fa,
 			    struct inode *inode, struct file *file)
 {
 	fuse_file_free(file->private_data);
 	return NULL;
 }
 
-int fuse_flush_initialize(struct fuse_args *fa, struct fuse_flush_in *ffi,
+int fuse_flush_initialize(struct fuse_bpf_args *fa, struct fuse_flush_in *ffi,
 			   struct file *file, fl_owner_t id)
 {
 	struct fuse_file *fuse_file = file->private_data;
@@ -406,19 +406,19 @@ int fuse_flush_initialize(struct fuse_args *fa, struct fuse_flush_in *ffi,
 		.fh = fuse_file->fh,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(file->f_inode),
 		.opcode = FUSE_FLUSH,
 		.in_numargs = 1,
 		.in_args[0].size = sizeof(*ffi),
 		.in_args[0].value = ffi,
-		.force = true,
+		.flags = FUSE_BPF_FORCE,
 	};
 
 	return 0;
 }
 
-int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id)
+int fuse_flush_backing(struct fuse_bpf_args *fa, struct file *file, fl_owner_t id)
 {
 	struct fuse_file *fuse_file = file->private_data;
 	struct file *backing_file = fuse_file->backing_file;
@@ -428,12 +428,12 @@ int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id)
 	return 0;
 }
 
-void *fuse_flush_finalize(struct fuse_args *fa, struct file *file, fl_owner_t id)
+void *fuse_flush_finalize(struct fuse_bpf_args *fa, struct file *file, fl_owner_t id)
 {
 	return NULL;
 }
 
-int fuse_lseek_initialize(struct fuse_args *fa, struct fuse_lseek_io *flio,
+int fuse_lseek_initialize(struct fuse_bpf_args *fa, struct fuse_lseek_io *flio,
 			  struct file *file, loff_t offset, int whence)
 {
 	struct fuse_file *fuse_file = file->private_data;
@@ -444,7 +444,7 @@ int fuse_lseek_initialize(struct fuse_args *fa, struct fuse_lseek_io *flio,
 		.whence = whence,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(file->f_inode),
 		.opcode = FUSE_LSEEK,
 		.in_numargs = 1,
@@ -458,7 +458,7 @@ int fuse_lseek_initialize(struct fuse_args *fa, struct fuse_lseek_io *flio,
 	return 0;
 }
 
-int fuse_lseek_backing(struct fuse_args *fa, struct file *file, loff_t offset, int whence)
+int fuse_lseek_backing(struct fuse_bpf_args *fa, struct file *file, loff_t offset, int whence)
 {
 	const struct fuse_lseek_in *fli = fa->in_args[0].value;
 	struct fuse_lseek_out *flo = fa->out_args[0].value;
@@ -487,7 +487,7 @@ int fuse_lseek_backing(struct fuse_args *fa, struct file *file, loff_t offset, i
 	return ret;
 }
 
-void *fuse_lseek_finalize(struct fuse_args *fa, struct file *file, loff_t offset, int whence)
+void *fuse_lseek_finalize(struct fuse_bpf_args *fa, struct file *file, loff_t offset, int whence)
 {
 	struct fuse_lseek_out *flo = fa->out_args[0].value;
 
@@ -496,7 +496,7 @@ void *fuse_lseek_finalize(struct fuse_args *fa, struct file *file, loff_t offset
 	return ERR_PTR(flo->offset);
 }
 
-int fuse_copy_file_range_initialize(struct fuse_args *fa, struct fuse_copy_file_range_io *fcf,
+int fuse_copy_file_range_initialize(struct fuse_bpf_args *fa, struct fuse_copy_file_range_io *fcf,
 				   struct file *file_in, loff_t pos_in, struct file *file_out,
 				   loff_t pos_out, size_t len, unsigned int flags)
 {
@@ -514,7 +514,7 @@ int fuse_copy_file_range_initialize(struct fuse_args *fa, struct fuse_copy_file_
 		.flags = flags,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(file_in->f_inode),
 		.opcode = FUSE_COPY_FILE_RANGE,
 		.in_numargs = 1,
@@ -528,7 +528,7 @@ int fuse_copy_file_range_initialize(struct fuse_args *fa, struct fuse_copy_file_
 	return 0;
 }
 
-int fuse_copy_file_range_backing(struct fuse_args *fa, struct file *file_in, loff_t pos_in,
+int fuse_copy_file_range_backing(struct fuse_bpf_args *fa, struct file *file_in, loff_t pos_in,
 				 struct file *file_out, loff_t pos_out, size_t len,
 				 unsigned int flags)
 {
@@ -547,14 +547,14 @@ int fuse_copy_file_range_backing(struct fuse_args *fa, struct file *file_in, lof
 					       flags);
 }
 
-void *fuse_copy_file_range_finalize(struct fuse_args *fa, struct file *file_in, loff_t pos_in,
+void *fuse_copy_file_range_finalize(struct fuse_bpf_args *fa, struct file *file_in, loff_t pos_in,
 				    struct file *file_out, loff_t pos_out, size_t len,
 				    unsigned int flags)
 {
 	return NULL;
 }
 
-int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+int fuse_fsync_initialize(struct fuse_bpf_args *fa, struct fuse_fsync_in *ffi,
 		   struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct fuse_file *fuse_file = file->private_data;
@@ -564,19 +564,19 @@ int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
 		.fsync_flags = datasync ? FUSE_FSYNC_FDATASYNC : 0,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(file->f_inode)->nodeid,
 		.opcode = FUSE_FSYNC,
 		.in_numargs = 1,
 		.in_args[0].size = sizeof(*ffi),
 		.in_args[0].value = ffi,
-		.force = true,
+		.flags = FUSE_BPF_FORCE,
 	};
 
 	return 0;
 }
 
-int fuse_fsync_backing(struct fuse_args *fa,
+int fuse_fsync_backing(struct fuse_bpf_args *fa,
 		   struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct fuse_file *fuse_file = file->private_data;
@@ -587,13 +587,13 @@ int fuse_fsync_backing(struct fuse_args *fa,
 	return vfs_fsync(backing_file, new_datasync);
 }
 
-void *fuse_fsync_finalize(struct fuse_args *fa,
+void *fuse_fsync_finalize(struct fuse_bpf_args *fa,
 		   struct file *file, loff_t start, loff_t end, int datasync)
 {
 	return NULL;
 }
 
-int fuse_dir_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+int fuse_dir_fsync_initialize(struct fuse_bpf_args *fa, struct fuse_fsync_in *ffi,
 		   struct file *file, loff_t start, loff_t end, int datasync)
 {
 	struct fuse_file *fuse_file = file->private_data;
@@ -603,19 +603,19 @@ int fuse_dir_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
 		.fsync_flags = datasync ? FUSE_FSYNC_FDATASYNC : 0,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(file->f_inode)->nodeid,
 		.opcode = FUSE_FSYNCDIR,
 		.in_numargs = 1,
 		.in_args[0].size = sizeof(*ffi),
 		.in_args[0].value = ffi,
-		.force = true,
+		.flags = FUSE_BPF_FORCE,
 	};
 
 	return 0;
 }
 
-int fuse_getxattr_initialize(struct fuse_args *fa,
+int fuse_getxattr_initialize(struct fuse_bpf_args *fa,
 		struct fuse_getxattr_io *fgio,
 		struct dentry *dentry, const char *name, void *value,
 		size_t size)
@@ -624,35 +624,34 @@ int fuse_getxattr_initialize(struct fuse_args *fa,
 		.fgi.size = size,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
 		.opcode = FUSE_GETXATTR,
 		.in_numargs = 2,
 		.out_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(fgio->fgi),
 			.value = &fgio->fgi,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = strlen(name) + 1,
 			.value = name,
 		},
-		.out_argvar = size ? true : false,
+		.flags = size ? FUSE_BPF_OUT_ARGVAR : 0,
 		.out_args[0].size = size ? size : sizeof(fgio->fgo),
 		.out_args[0].value = size ? value : &fgio->fgo,
 	};
-
 	return 0;
 }
 
-int fuse_getxattr_backing(struct fuse_args *fa,
+int fuse_getxattr_backing(struct fuse_bpf_args *fa,
 		struct dentry *dentry, const char *name, void *value,
 		size_t size)
 {
 	ssize_t ret = vfs_getxattr(get_fuse_dentry(dentry)->backing_path.dentry,
 				   fa->in_args[1].value, value, size);
 
-	if (fa->out_argvar)
+	if (fa->flags & FUSE_BPF_OUT_ARGVAR)
 		fa->out_args[0].size = ret;
 	else
 		((struct fuse_getxattr_out *)fa->out_args[0].value)->size = ret;
@@ -660,13 +659,13 @@ int fuse_getxattr_backing(struct fuse_args *fa,
 	return 0;
 }
 
-void *fuse_getxattr_finalize(struct fuse_args *fa,
+void *fuse_getxattr_finalize(struct fuse_bpf_args *fa,
 		struct dentry *dentry, const char *name, void *value,
 		size_t size)
 {
 	struct fuse_getxattr_out *fgo;
 
-	if (fa->out_argvar)
+	if (fa->flags & FUSE_BPF_OUT_ARGVAR)
 		return ERR_PTR(fa->out_args[0].size);
 
 	fgo = fa->out_args[0].value;
@@ -675,7 +674,7 @@ void *fuse_getxattr_finalize(struct fuse_args *fa,
 
 }
 
-int fuse_listxattr_initialize(struct fuse_args *fa,
+int fuse_listxattr_initialize(struct fuse_bpf_args *fa,
 			      struct fuse_getxattr_io *fgio,
 			      struct dentry *dentry, char *list, size_t size)
 {
@@ -683,17 +682,17 @@ int fuse_listxattr_initialize(struct fuse_args *fa,
 		.fgi.size = size,
 	};
 
-	*fa = (struct fuse_args){
+	*fa = (struct fuse_bpf_args){
 		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
 		.opcode = FUSE_LISTXATTR,
 		.in_numargs = 1,
 		.out_numargs = 1,
 		.in_args[0] =
-			(struct fuse_in_arg){
+			(struct fuse_bpf_in_arg){
 				.size = sizeof(fgio->fgi),
 				.value = &fgio->fgi,
 			},
-		.out_argvar = size ? true : false,
+		.flags = size ? FUSE_BPF_OUT_ARGVAR : 0,
 		.out_args[0].size = size ? size : sizeof(fgio->fgo),
 		.out_args[0].value = size ? (void *)list : &fgio->fgo,
 	};
@@ -701,7 +700,7 @@ int fuse_listxattr_initialize(struct fuse_args *fa,
 	return 0;
 }
 
-int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+int fuse_listxattr_backing(struct fuse_bpf_args *fa, struct dentry *dentry,
 			   char *list, size_t size)
 {
 	ssize_t ret =
@@ -711,7 +710,7 @@ int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
 	if (ret < 0)
 		return ret;
 
-	if (fa->out_argvar)
+	if (fa->flags & FUSE_BPF_OUT_ARGVAR)
 		fa->out_args[0].size = ret;
 	else
 		((struct fuse_getxattr_out *)fa->out_args[0].value)->size = ret;
@@ -719,7 +718,7 @@ int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
 	return ret;
 }
 
-void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+void *fuse_listxattr_finalize(struct fuse_bpf_args *fa, struct dentry *dentry,
 			      char *list, size_t size)
 {
 	struct fuse_getxattr_out *fgo;
@@ -727,14 +726,14 @@ void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
 	if (fa->error_in)
 		return NULL;
 
-	if (fa->out_argvar)
+	if (fa->flags & FUSE_BPF_OUT_ARGVAR)
 		return ERR_PTR(fa->out_args[0].size);
 
 	fgo = fa->out_args[0].value;
 	return ERR_PTR(fgo->size);
 }
 
-int fuse_setxattr_initialize(struct fuse_args *fa,
+int fuse_setxattr_initialize(struct fuse_bpf_args *fa,
 			     struct fuse_setxattr_in *fsxi,
 			     struct dentry *dentry, const char *name,
 			     const void *value, size_t size, int flags)
@@ -744,19 +743,19 @@ int fuse_setxattr_initialize(struct fuse_args *fa,
 		.flags = flags,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
 		.opcode = FUSE_SETXATTR,
 		.in_numargs = 3,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(*fsxi),
 			.value = fsxi,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = strlen(name) + 1,
 			.value = name,
 		},
-		.in_args[2] = (struct fuse_in_arg) {
+		.in_args[2] = (struct fuse_bpf_in_arg) {
 			.size = size,
 			.value = value,
 		},
@@ -765,7 +764,7 @@ int fuse_setxattr_initialize(struct fuse_args *fa,
 	return 0;
 }
 
-int fuse_setxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+int fuse_setxattr_backing(struct fuse_bpf_args *fa, struct dentry *dentry,
 			  const char *name, const void *value, size_t size,
 			  int flags)
 {
@@ -773,22 +772,22 @@ int fuse_setxattr_backing(struct fuse_args *fa, struct dentry *dentry,
 			    value, size, flags);
 }
 
-void *fuse_setxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+void *fuse_setxattr_finalize(struct fuse_bpf_args *fa, struct dentry *dentry,
 			     const char *name, const void *value, size_t size,
 			     int flags)
 {
 	return NULL;
 }
 
-int fuse_removexattr_initialize(struct fuse_args *fa,
+int fuse_removexattr_initialize(struct fuse_bpf_args *fa,
 				struct fuse_dummy_io *unused,
 				struct dentry *dentry, const char *name)
 {
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(dentry->d_inode)->nodeid,
 		.opcode = FUSE_REMOVEXATTR,
 		.in_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = strlen(name) + 1,
 			.value = name,
 		},
@@ -797,7 +796,7 @@ int fuse_removexattr_initialize(struct fuse_args *fa,
 	return 0;
 }
 
-int fuse_removexattr_backing(struct fuse_args *fa,
+int fuse_removexattr_backing(struct fuse_bpf_args *fa,
 			     struct dentry *dentry, const char *name)
 {
 	struct path *backing_path =
@@ -807,7 +806,7 @@ int fuse_removexattr_backing(struct fuse_args *fa,
 	return vfs_removexattr(backing_path->dentry, name);
 }
 
-void *fuse_removexattr_finalize(struct fuse_args *fa,
+void *fuse_removexattr_finalize(struct fuse_bpf_args *fa,
 				struct dentry *dentry, const char *name)
 {
 	return NULL;
@@ -846,7 +845,7 @@ static void fuse_bpf_aio_rw_complete(struct kiocb *iocb, long res, long res2)
 
 
 int fuse_file_read_iter_initialize(
-		struct fuse_args *fa, struct fuse_file_read_iter_io *fri,
+		struct fuse_bpf_args *fa, struct fuse_file_read_iter_io *fri,
 		struct kiocb *iocb, struct iov_iter *to)
 {
 	struct file *file = iocb->ki_filp;
@@ -864,7 +863,7 @@ int fuse_file_read_iter_initialize(
 
 	/* TODO we can't assume 'to' is a kvec */
 	/* TODO we also can't assume the vector has only one component */
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.opcode = FUSE_READ,
 		.nodeid = ff->nodeid,
 		.in_numargs = 1,
@@ -885,7 +884,7 @@ int fuse_file_read_iter_initialize(
 	return 0;
 }
 
-int fuse_file_read_iter_backing(struct fuse_args *fa,
+int fuse_file_read_iter_backing(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *to)
 {
 	struct fuse_read_iter_out *frio = fa->out_args[0].value;
@@ -933,7 +932,7 @@ out:
 	return ret;
 }
 
-void *fuse_file_read_iter_finalize(struct fuse_args *fa,
+void *fuse_file_read_iter_finalize(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *to)
 {
 	struct fuse_read_iter_out *frio = fa->out_args[0].value;
@@ -942,7 +941,7 @@ void *fuse_file_read_iter_finalize(struct fuse_args *fa,
 }
 
 int fuse_file_write_iter_initialize(
-		struct fuse_args *fa, struct fuse_file_write_iter_io *fwio,
+		struct fuse_bpf_args *fa, struct fuse_file_write_iter_io *fwio,
 		struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
@@ -955,7 +954,7 @@ int fuse_file_write_iter_initialize(
 	};
 
 	/* TODO we can't assume 'from' is a kvec */
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.opcode = FUSE_WRITE,
 		.nodeid = ff->nodeid,
 		.in_numargs = 2,
@@ -971,7 +970,7 @@ int fuse_file_write_iter_initialize(
 	return 0;
 }
 
-int fuse_file_write_iter_backing(struct fuse_args *fa,
+int fuse_file_write_iter_backing(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *from)
 {
 	struct file *file = iocb->ki_filp;
@@ -1025,7 +1024,7 @@ out:
 	return 0;
 }
 
-void *fuse_file_write_iter_finalize(struct fuse_args *fa,
+void *fuse_file_write_iter_finalize(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *from)
 {
 	struct fuse_write_iter_out *fwio = fa->out_args[0].value;
@@ -1071,7 +1070,7 @@ ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma)
 	return ret;
 }
 
-int fuse_file_fallocate_initialize(struct fuse_args *fa,
+int fuse_file_fallocate_initialize(struct fuse_bpf_args *fa,
 		struct fuse_fallocate_in *ffi,
 		struct file *file, int mode, loff_t offset, loff_t length)
 {
@@ -1084,7 +1083,7 @@ int fuse_file_fallocate_initialize(struct fuse_args *fa,
 		.mode = mode
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.opcode = FUSE_FALLOCATE,
 		.nodeid = ff->nodeid,
 		.in_numargs = 1,
@@ -1095,7 +1094,7 @@ int fuse_file_fallocate_initialize(struct fuse_args *fa,
 	return 0;
 }
 
-int fuse_file_fallocate_backing(struct fuse_args *fa,
+int fuse_file_fallocate_backing(struct fuse_bpf_args *fa,
 		struct file *file, int mode, loff_t offset, loff_t length)
 {
 	const struct fuse_fallocate_in *ffi = fa->in_args[0].value;
@@ -1105,7 +1104,7 @@ int fuse_file_fallocate_backing(struct fuse_args *fa,
 			     ffi->length);
 }
 
-void *fuse_file_fallocate_finalize(struct fuse_args *fa,
+void *fuse_file_fallocate_finalize(struct fuse_bpf_args *fa,
 		struct file *file, int mode, loff_t offset, loff_t length)
 {
 	return NULL;
@@ -1115,24 +1114,24 @@ void *fuse_file_fallocate_finalize(struct fuse_args *fa,
  * Directory operations after here                                             *
  ******************************************************************************/
 
-int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *fli,
+int fuse_lookup_initialize(struct fuse_bpf_args *fa, struct fuse_lookup_io *fli,
 	       struct inode *dir, struct dentry *entry, unsigned int flags)
 {
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_fuse_inode(dir)->nodeid,
 		.opcode = FUSE_LOOKUP,
 		.in_numargs = 1,
 		.out_numargs = 2,
-		.out_argvar = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.flags = FUSE_BPF_OUT_ARGVAR,
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
-		.out_args[0] = (struct fuse_arg) {
+		.out_args[0] = (struct fuse_bpf_arg) {
 			.size = sizeof(fli->feo),
 			.value = &fli->feo,
 		},
-		.out_args[1] = (struct fuse_arg) {
+		.out_args[1] = (struct fuse_bpf_arg) {
 			.size = sizeof(fli->feb.out),
 			.value = &fli->feb.out,
 		},
@@ -1141,7 +1140,7 @@ int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *fli,
 	return 0;
 }
 
-int fuse_lookup_backing(struct fuse_args *fa, struct inode *dir,
+int fuse_lookup_backing(struct fuse_bpf_args *fa, struct inode *dir,
 			  struct dentry *entry, unsigned int flags)
 {
 	struct fuse_dentry *fuse_entry = get_fuse_dentry(entry);
@@ -1168,7 +1167,7 @@ int fuse_lookup_backing(struct fuse_args *fa, struct inode *dir,
 	return 0;
 }
 
-struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
+struct dentry *fuse_lookup_finalize(struct fuse_bpf_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags)
 {
 	struct fuse_dentry *fd;
@@ -1271,7 +1270,7 @@ struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
 	return d_splice_alias(inode, entry);
 }
 
-int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
+int fuse_revalidate_backing(struct fuse_bpf_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags)
 {
 	struct fuse_dentry *fuse_dentry = get_fuse_dentry(entry);
@@ -1289,13 +1288,13 @@ int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
 	return 1;
 }
 
-void *fuse_revalidate_finalize(struct fuse_args *fa, struct inode *dir,
+void *fuse_revalidate_finalize(struct fuse_bpf_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags)
 {
 	return 0;
 }
 
-int fuse_canonical_path_initialize(struct fuse_args *fa,
+int fuse_canonical_path_initialize(struct fuse_bpf_args *fa,
 				   struct fuse_dummy_io *fdi,
 				   const struct path *path,
 				   struct path *canonical_path)
@@ -1304,14 +1303,14 @@ int fuse_canonical_path_initialize(struct fuse_args *fa,
 	return 0;
 }
 
-int fuse_canonical_path_backing(struct fuse_args *fa, const struct path *path,
+int fuse_canonical_path_backing(struct fuse_bpf_args *fa, const struct path *path,
 				struct path *canonical_path)
 {
 	get_fuse_backing_path(path->dentry, canonical_path);
 	return 0;
 }
 
-void *fuse_canonical_path_finalize(struct fuse_args *fa,
+void *fuse_canonical_path_finalize(struct fuse_bpf_args *fa,
 				   const struct path *path,
 				   struct path *canonical_path)
 {
@@ -1319,7 +1318,7 @@ void *fuse_canonical_path_finalize(struct fuse_args *fa,
 }
 
 int fuse_mknod_initialize(
-		struct fuse_args *fa, struct fuse_mknod_in *fmi,
+		struct fuse_bpf_args *fa, struct fuse_mknod_in *fmi,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
 {
 	*fmi = (struct fuse_mknod_in) {
@@ -1327,15 +1326,15 @@ int fuse_mknod_initialize(
 		.rdev = new_encode_dev(rdev),
 		.umask = current_umask(),
 	};
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(dir),
 		.opcode = FUSE_MKNOD,
 		.in_numargs = 2,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(*fmi),
 			.value = fmi,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
@@ -1345,7 +1344,7 @@ int fuse_mknod_initialize(
 }
 
 int fuse_mknod_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
 {
 	int err = 0;
@@ -1389,29 +1388,29 @@ out:
 }
 
 void *fuse_mknod_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev)
 {
 	return NULL;
 }
 
 int fuse_mkdir_initialize(
-		struct fuse_args *fa, struct fuse_mkdir_in *fmi,
+		struct fuse_bpf_args *fa, struct fuse_mkdir_in *fmi,
 		struct inode *dir, struct dentry *entry, umode_t mode)
 {
 	*fmi = (struct fuse_mkdir_in) {
 		.mode = mode,
 		.umask = current_umask(),
 	};
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(dir),
 		.opcode = FUSE_MKDIR,
 		.in_numargs = 2,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(*fmi),
 			.value = fmi,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
@@ -1421,7 +1420,7 @@ int fuse_mkdir_initialize(
 }
 
 int fuse_mkdir_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode)
 {
 	int err = 0;
@@ -1467,21 +1466,21 @@ out:
 }
 
 void *fuse_mkdir_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode)
 {
 	return NULL;
 }
 
 int fuse_rmdir_initialize(
-		struct fuse_args *fa, struct fuse_dummy_io *dummy,
+		struct fuse_bpf_args *fa, struct fuse_dummy_io *dummy,
 		struct inode *dir, struct dentry *entry)
 {
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(dir),
 		.opcode = FUSE_RMDIR,
 		.in_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
@@ -1491,7 +1490,7 @@ int fuse_rmdir_initialize(
 }
 
 int fuse_rmdir_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry)
 {
 	int err = 0;
@@ -1520,7 +1519,7 @@ int fuse_rmdir_backing(
 }
 
 void *fuse_rmdir_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry)
 {
 	return NULL;
@@ -1596,7 +1595,7 @@ put_old_path:
 	return err;
 }
 
-int fuse_rename2_initialize(struct fuse_args *fa, struct fuse_rename2_in *fri,
+int fuse_rename2_initialize(struct fuse_bpf_args *fa, struct fuse_rename2_in *fri,
 			    struct inode *olddir, struct dentry *oldent,
 			    struct inode *newdir, struct dentry *newent,
 			    unsigned int flags)
@@ -1605,19 +1604,19 @@ int fuse_rename2_initialize(struct fuse_args *fa, struct fuse_rename2_in *fri,
 		.newdir = get_node_id(newdir),
 		.flags = flags,
 	};
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(olddir),
 		.opcode = FUSE_RENAME2,
 		.in_numargs = 3,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(*fri),
 			.value = fri,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = oldent->d_name.len + 1,
 			.value = oldent->d_name.name,
 		},
-		.in_args[2] = (struct fuse_in_arg) {
+		.in_args[2] = (struct fuse_bpf_in_arg) {
 			.size = newent->d_name.len + 1,
 			.value = newent->d_name.name,
 		},
@@ -1626,7 +1625,7 @@ int fuse_rename2_initialize(struct fuse_args *fa, struct fuse_rename2_in *fri,
 	return 0;
 }
 
-int fuse_rename2_backing(struct fuse_args *fa,
+int fuse_rename2_backing(struct fuse_bpf_args *fa,
 			 struct inode *olddir, struct dentry *oldent,
 			 struct inode *newdir, struct dentry *newent,
 			 unsigned int flags)
@@ -1637,7 +1636,7 @@ int fuse_rename2_backing(struct fuse_args *fa,
 	return fuse_rename_backing_common(olddir, oldent, newdir, newent, fri->flags);
 }
 
-void *fuse_rename2_finalize(struct fuse_args *fa,
+void *fuse_rename2_finalize(struct fuse_bpf_args *fa,
 			    struct inode *olddir, struct dentry *oldent,
 			    struct inode *newdir, struct dentry *newent,
 			    unsigned int flags)
@@ -1645,26 +1644,26 @@ void *fuse_rename2_finalize(struct fuse_args *fa,
 	return NULL;
 }
 
-int fuse_rename_initialize(struct fuse_args *fa, struct fuse_rename_in *fri,
+int fuse_rename_initialize(struct fuse_bpf_args *fa, struct fuse_rename_in *fri,
 			   struct inode *olddir, struct dentry *oldent,
 			   struct inode *newdir, struct dentry *newent)
 {
 	*fri = (struct fuse_rename_in) {
 		.newdir = get_node_id(newdir),
 	};
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(olddir),
 		.opcode = FUSE_RENAME,
 		.in_numargs = 3,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(*fri),
 			.value = fri,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = oldent->d_name.len + 1,
 			.value = oldent->d_name.name,
 		},
-		.in_args[2] = (struct fuse_in_arg) {
+		.in_args[2] = (struct fuse_bpf_in_arg) {
 			.size = newent->d_name.len + 1,
 			.value = newent->d_name.name,
 		},
@@ -1673,7 +1672,7 @@ int fuse_rename_initialize(struct fuse_args *fa, struct fuse_rename_in *fri,
 	return 0;
 }
 
-int fuse_rename_backing(struct fuse_args *fa,
+int fuse_rename_backing(struct fuse_bpf_args *fa,
 			struct inode *olddir, struct dentry *oldent,
 			struct inode *newdir, struct dentry *newent)
 {
@@ -1681,7 +1680,7 @@ int fuse_rename_backing(struct fuse_args *fa,
 	return fuse_rename_backing_common(olddir, oldent, newdir, newent, 0);
 }
 
-void *fuse_rename_finalize(struct fuse_args *fa,
+void *fuse_rename_finalize(struct fuse_bpf_args *fa,
 			   struct inode *olddir, struct dentry *oldent,
 			   struct inode *newdir, struct dentry *newent)
 {
@@ -1689,14 +1688,14 @@ void *fuse_rename_finalize(struct fuse_args *fa,
 }
 
 int fuse_unlink_initialize(
-		struct fuse_args *fa, struct fuse_dummy_io *dummy,
+		struct fuse_bpf_args *fa, struct fuse_dummy_io *dummy,
 		struct inode *dir, struct dentry *entry)
 {
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(dir),
 		.opcode = FUSE_UNLINK,
 		.in_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
@@ -1706,7 +1705,7 @@ int fuse_unlink_initialize(
 }
 
 int fuse_unlink_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry)
 {
 	int err = 0;
@@ -1735,13 +1734,13 @@ int fuse_unlink_backing(
 }
 
 void *fuse_unlink_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry)
 {
 	return NULL;
 }
 
-int fuse_link_initialize(struct fuse_args *fa, struct fuse_link_in *fli,
+int fuse_link_initialize(struct fuse_bpf_args *fa, struct fuse_link_in *fli,
 			 struct dentry *entry, struct inode *dir,
 			 struct dentry *newent)
 {
@@ -1761,7 +1760,7 @@ int fuse_link_initialize(struct fuse_args *fa, struct fuse_link_in *fli,
 	return 0;
 }
 
-int fuse_link_backing(struct fuse_args *fa, struct dentry *entry,
+int fuse_link_backing(struct fuse_bpf_args *fa, struct dentry *entry,
 		      struct inode *dir, struct dentry *newent)
 {
 	int err = 0;
@@ -1815,13 +1814,13 @@ err_dst_path:
 	return err;
 }
 
-void *fuse_link_finalize(struct fuse_args *fa, struct dentry *entry,
+void *fuse_link_finalize(struct fuse_bpf_args *fa, struct dentry *entry,
 			 struct inode *dir, struct dentry *newent)
 {
 	return NULL;
 }
 
-int fuse_getattr_initialize(struct fuse_args *fa, struct fuse_getattr_io *fgio,
+int fuse_getattr_initialize(struct fuse_bpf_args *fa, struct fuse_getattr_io *fgio,
 			const struct dentry *entry, struct kstat *stat,
 			u32 request_mask, unsigned int flags)
 {
@@ -1832,16 +1831,16 @@ int fuse_getattr_initialize(struct fuse_args *fa, struct fuse_getattr_io *fgio,
 
 	fgio->fao = (struct fuse_attr_out) {0};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(entry->d_inode),
 		.opcode = FUSE_GETATTR,
 		.in_numargs = 1,
 		.out_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(fgio->fgi),
 			.value = &fgio->fgi,
 		},
-		.out_args[0] = (struct fuse_arg) {
+		.out_args[0] = (struct fuse_bpf_arg) {
 			.size = sizeof(fgio->fao),
 			.value = &fgio->fao,
 		},
@@ -1886,7 +1885,7 @@ static void fuse_stat_to_attr(struct fuse_conn *fc, struct inode *inode,
 	attr->blksize = 1 << blkbits;
 }
 
-int fuse_getattr_backing(struct fuse_args *fa,
+int fuse_getattr_backing(struct fuse_bpf_args *fa,
 		const struct dentry *entry, struct kstat *stat,
 			u32 request_mask, unsigned int flags)
 {
@@ -1909,7 +1908,7 @@ int fuse_getattr_backing(struct fuse_args *fa,
 	return err;
 }
 
-void *fuse_getattr_finalize(struct fuse_args *fa,
+void *fuse_getattr_finalize(struct fuse_bpf_args *fa,
 			const struct dentry *entry, struct kstat *stat,
 			u32 request_mask, unsigned int flags)
 {
@@ -1964,7 +1963,7 @@ static void fattr_to_iattr(struct fuse_conn *fc,
 	}
 }
 
-int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsio,
+int fuse_setattr_initialize(struct fuse_bpf_args *fa, struct fuse_setattr_io *fsio,
 		struct dentry *dentry, struct iattr *attr, struct file *file)
 {
 	struct fuse_conn *fc = get_fuse_conn(dentry->d_inode);
@@ -1972,7 +1971,7 @@ int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsio,
 	*fsio = (struct fuse_setattr_io) {0};
 	iattr_to_fattr(fc, attr, &fsio->fsi, true);
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.opcode = FUSE_SETATTR,
 		.nodeid = get_node_id(dentry->d_inode),
 		.in_numargs = 1,
@@ -1986,7 +1985,7 @@ int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsio,
 	return 0;
 }
 
-int fuse_setattr_backing(struct fuse_args *fa,
+int fuse_setattr_backing(struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct iattr *attr, struct file *file)
 {
 	struct fuse_conn *fc = get_fuse_conn(dentry->d_inode);
@@ -2013,18 +2012,18 @@ int fuse_setattr_backing(struct fuse_args *fa,
 	return res;
 }
 
-void *fuse_setattr_finalize(struct fuse_args *fa,
+void *fuse_setattr_finalize(struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct iattr *attr, struct file *file)
 {
 	return NULL;
 }
 
 int fuse_statfs_initialize(
-		struct fuse_args *fa, struct fuse_statfs_out *fso,
+		struct fuse_bpf_args *fa, struct fuse_statfs_out *fso,
 		struct dentry *dentry, struct kstatfs *buf)
 {
 	*fso = (struct fuse_statfs_out) {0};
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(d_inode(dentry)),
 		.opcode = FUSE_STATFS,
 		.out_numargs = 1,
@@ -2037,7 +2036,7 @@ int fuse_statfs_initialize(
 }
 
 int fuse_statfs_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct kstatfs *buf)
 {
 	int err = 0;
@@ -2059,7 +2058,7 @@ int fuse_statfs_backing(
 }
 
 void *fuse_statfs_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct kstatfs *buf)
 {
 	struct fuse_statfs_out *fso = fa->out_args[0].value;
@@ -2069,7 +2068,7 @@ void *fuse_statfs_finalize(
 	return NULL;
 }
 
-int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *unused,
+int fuse_get_link_initialize(struct fuse_bpf_args *fa, struct fuse_dummy_io *unused,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out)
 {
@@ -2085,11 +2084,11 @@ int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *unused,
 	 * We ought to only make that buffer if it's been requested, so leaving
 	 * this unimplemented for the moment
 	 */
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.opcode = FUSE_READLINK,
 		.nodeid = get_node_id(inode),
 		.in_numargs = 1,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = dentry->d_name.len + 1,
 			.value = dentry->d_name.name,
 		},
@@ -2104,7 +2103,7 @@ int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *unused,
 	return 0;
 }
 
-int fuse_get_link_backing(struct fuse_args *fa,
+int fuse_get_link_backing(struct fuse_bpf_args *fa,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out)
 {
@@ -2131,7 +2130,7 @@ int fuse_get_link_backing(struct fuse_args *fa,
 	return 0;
 }
 
-void *fuse_get_link_finalize(struct fuse_args *fa,
+void *fuse_get_link_finalize(struct fuse_bpf_args *fa,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback,  const char **out)
 {
@@ -2139,18 +2138,18 @@ void *fuse_get_link_finalize(struct fuse_args *fa,
 }
 
 int fuse_symlink_initialize(
-		struct fuse_args *fa, struct fuse_dummy_io *unused,
+		struct fuse_bpf_args *fa, struct fuse_dummy_io *unused,
 		struct inode *dir, struct dentry *entry, const char *link, int len)
 {
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = get_node_id(dir),
 		.opcode = FUSE_SYMLINK,
 		.in_numargs = 2,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = entry->d_name.len + 1,
 			.value = entry->d_name.name,
 		},
-		.in_args[1] = (struct fuse_in_arg) {
+		.in_args[1] = (struct fuse_bpf_in_arg) {
 			.size = len,
 			.value = link,
 		},
@@ -2160,7 +2159,7 @@ int fuse_symlink_initialize(
 }
 
 int fuse_symlink_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, const char *link, int len)
 {
 	int err = 0;
@@ -2199,13 +2198,13 @@ out:
 }
 
 void *fuse_symlink_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, const char *link, int len)
 {
 	return NULL;
 }
 
-int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
+int fuse_readdir_initialize(struct fuse_bpf_args *fa, struct fuse_read_io *frio,
 			    struct file *file, struct dir_context *ctx,
 			    bool *force_again, bool *allow_force, bool is_continued)
 {
@@ -2215,21 +2214,21 @@ int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
 	if (!page)
 		return -ENOMEM;
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.nodeid = ff->nodeid,
 		.opcode = FUSE_READDIR,
 		.in_numargs = 1,
-		.out_argvar = true,
+		.flags = FUSE_BPF_OUT_ARGVAR,
 		.out_numargs = 2,
-		.in_args[0] = (struct fuse_in_arg) {
+		.in_args[0] = (struct fuse_bpf_in_arg) {
 			.size = sizeof(frio->fri),
 			.value = &frio->fri,
 		},
-		.out_args[0] = (struct fuse_arg) {
+		.out_args[0] = (struct fuse_bpf_arg) {
 			.size = sizeof(frio->fro),
 			.value = &frio->fro,
 		},
-		.out_args[1] = (struct fuse_arg) {
+		.out_args[1] = (struct fuse_bpf_arg) {
 			.size = PAGE_SIZE,
 			.value = page,
 		},
@@ -2303,7 +2302,7 @@ static int parse_dirfile(char *buf, size_t nbytes, struct dir_context *ctx)
 }
 
 
-int fuse_readdir_backing(struct fuse_args *fa,
+int fuse_readdir_backing(struct fuse_bpf_args *fa,
 			 struct file *file, struct dir_context *ctx,
 			 bool *force_again, bool *allow_force, bool is_continued)
 {
@@ -2335,7 +2334,7 @@ int fuse_readdir_backing(struct fuse_args *fa,
 	return err;
 }
 
-void *fuse_readdir_finalize(struct fuse_args *fa,
+void *fuse_readdir_finalize(struct fuse_bpf_args *fa,
 			    struct file *file, struct dir_context *ctx,
 			    bool *force_again, bool *allow_force, bool is_continued)
 {
@@ -2356,14 +2355,14 @@ void *fuse_readdir_finalize(struct fuse_args *fa,
 	return ERR_PTR(err);
 }
 
-int fuse_access_initialize(struct fuse_args *fa, struct fuse_access_in *fai,
+int fuse_access_initialize(struct fuse_bpf_args *fa, struct fuse_access_in *fai,
 			    struct inode *inode, int mask)
 {
 	*fai = (struct fuse_access_in) {
 		.mask = mask,
 	};
 
-	*fa = (struct fuse_args) {
+	*fa = (struct fuse_bpf_args) {
 		.opcode = FUSE_ACCESS,
 		.nodeid = get_node_id(inode),
 		.in_numargs = 1,
@@ -2374,7 +2373,7 @@ int fuse_access_initialize(struct fuse_args *fa, struct fuse_access_in *fai,
 	return 0;
 }
 
-int fuse_access_backing(struct fuse_args *fa, struct inode *inode, int mask)
+int fuse_access_backing(struct fuse_bpf_args *fa, struct inode *inode, int mask)
 {
 	struct fuse_inode *fi = get_fuse_inode(inode);
 	const struct fuse_access_in *fai = fa->in_args[0].value;
@@ -2383,7 +2382,7 @@ int fuse_access_backing(struct fuse_args *fa, struct inode *inode, int mask)
 				fi->backing_inode, fai->mask);
 }
 
-void *fuse_access_finalize(struct fuse_args *fa, struct inode *inode, int mask)
+void *fuse_access_finalize(struct fuse_bpf_args *fa, struct inode *inode, int mask)
 {
 	return NULL;
 }
@@ -2403,3 +2402,54 @@ void __exit fuse_bpf_cleanup(void)
 {
 	kmem_cache_destroy(fuse_bpf_aio_request_cachep);
 }
+
+ssize_t fuse_bpf_simple_request(struct fuse_mount *fm, struct fuse_bpf_args *bpf_args)
+{
+	int i;
+	ssize_t res;
+	struct fuse_args args = {
+		.nodeid = bpf_args->nodeid,
+		.opcode = bpf_args->opcode,
+		.error_in = bpf_args->error_in,
+		.in_numargs = bpf_args->in_numargs,
+		.out_numargs = bpf_args->out_numargs,
+		.force = !!(bpf_args->flags & FUSE_BPF_FORCE),
+		.out_argvar = !!(bpf_args->flags & FUSE_BPF_OUT_ARGVAR),
+	};
+
+	for (i = 0; i < args.in_numargs; ++i)
+		args.in_args[i] = (struct fuse_in_arg) {
+			.size = bpf_args->in_args[i].size,
+			.value = bpf_args->in_args[i].value,
+		};
+	for (i = 0; i < args.out_numargs; ++i)
+		args.out_args[i] = (struct fuse_arg) {
+			.size = bpf_args->out_args[i].size,
+			.value = bpf_args->out_args[i].value,
+		};
+
+	res = fuse_simple_request(fm, &args);
+
+	*bpf_args = (struct fuse_bpf_args) {
+		.nodeid = args.nodeid,
+		.opcode = args.opcode,
+		.error_in = args.error_in,
+		.in_numargs = args.in_numargs,
+		.out_numargs = args.out_numargs,
+	};
+	if (args.force)
+		bpf_args->flags |= FUSE_BPF_FORCE;
+	if (args.out_args)
+		bpf_args->flags |= FUSE_BPF_OUT_ARGVAR;
+	for (i = 0; i < args.in_numargs; ++i)
+		bpf_args->in_args[i] = (struct fuse_bpf_in_arg) {
+			.size = args.in_args[i].size,
+			.value = args.in_args[i].value,
+		};
+	for (i = 0; i < args.out_numargs; ++i)
+		bpf_args->out_args[i] = (struct fuse_bpf_arg) {
+			.size = args.out_args[i].size,
+			.value = args.out_args[i].value,
+		};
+	return res;
+}
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index fac80eadaff77..00e0c53242e76 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -308,12 +308,48 @@ struct fuse_file {
 	bool flock:1;
 };
 
+/** One input argument of a request */
+struct fuse_in_arg {
+	unsigned size;
+	const void *value;
+};
+
+/** One output argument of a request */
+struct fuse_arg {
+	unsigned size;
+	void *value;
+};
+
 /** FUSE page descriptor */
 struct fuse_page_desc {
 	unsigned int length;
 	unsigned int offset;
 };
 
+struct fuse_args {
+	uint64_t nodeid;
+	uint32_t opcode;
+	uint32_t error_in;
+	unsigned short in_numargs;
+	unsigned short out_numargs;
+	int force:1;
+	int noreply:1;
+	int nocreds:1;
+	int in_pages:1;
+	int out_pages:1;
+	int user_pages:1;
+	int out_argvar:1;
+	int page_zeroing:1;
+	int page_replace:1;
+	int may_block:1;
+	struct fuse_in_arg in_args[FUSE_MAX_IN_ARGS];
+	struct fuse_arg out_args[FUSE_MAX_OUT_ARGS];
+	void (*end)(struct fuse_mount *fm, struct fuse_args *args, int error);
+
+	/* Path used for completing d_canonical_path */
+	struct path *canonical_path;
+};
+
 struct fuse_args_pages {
 	struct fuse_args args;
 	struct page **pages;
@@ -1316,11 +1352,11 @@ struct fuse_open_io {
 	struct fuse_open_out foo;
 };
 
-int fuse_open_initialize(struct fuse_args *fa, struct fuse_open_io *foi,
+int fuse_open_initialize(struct fuse_bpf_args *fa, struct fuse_open_io *foi,
 			 struct inode *inode, struct file *file, bool isdir);
-int fuse_open_backing(struct fuse_args *fa,
+int fuse_open_backing(struct fuse_bpf_args *fa,
 		      struct inode *inode, struct file *file, bool isdir);
-void *fuse_open_finalize(struct fuse_args *fa,
+void *fuse_open_finalize(struct fuse_bpf_args *fa,
 		       struct inode *inode, struct file *file, bool isdir);
 
 struct fuse_create_open_io {
@@ -1330,103 +1366,103 @@ struct fuse_create_open_io {
 };
 
 int fuse_create_open_initialize(
-		struct fuse_args *fa, struct fuse_create_open_io *fcoi,
+		struct fuse_bpf_args *fa, struct fuse_create_open_io *fcoi,
 		struct inode *dir, struct dentry *entry,
 		struct file *file, unsigned int flags, umode_t mode);
 int fuse_create_open_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry,
 		struct file *file, unsigned int flags, umode_t mode);
 void *fuse_create_open_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry,
 		struct file *file, unsigned int flags, umode_t mode);
 
 int fuse_mknod_initialize(
-		struct fuse_args *fa, struct fuse_mknod_in *fmi,
+		struct fuse_bpf_args *fa, struct fuse_mknod_in *fmi,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev);
 int fuse_mknod_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev);
 void *fuse_mknod_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode, dev_t rdev);
 
 int fuse_mkdir_initialize(
-		struct fuse_args *fa, struct fuse_mkdir_in *fmi,
+		struct fuse_bpf_args *fa, struct fuse_mkdir_in *fmi,
 		struct inode *dir, struct dentry *entry, umode_t mode);
 int fuse_mkdir_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode);
 void *fuse_mkdir_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, umode_t mode);
 
 int fuse_rmdir_initialize(
-		struct fuse_args *fa, struct fuse_dummy_io *fmi,
+		struct fuse_bpf_args *fa, struct fuse_dummy_io *fmi,
 		struct inode *dir, struct dentry *entry);
 int fuse_rmdir_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry);
 void *fuse_rmdir_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry);
 
-int fuse_rename2_initialize(struct fuse_args *fa, struct fuse_rename2_in *fri,
+int fuse_rename2_initialize(struct fuse_bpf_args *fa, struct fuse_rename2_in *fri,
 			    struct inode *olddir, struct dentry *oldent,
 			    struct inode *newdir, struct dentry *newent,
 			    unsigned int flags);
-int fuse_rename2_backing(struct fuse_args *fa,
+int fuse_rename2_backing(struct fuse_bpf_args *fa,
 			 struct inode *olddir, struct dentry *oldent,
 			 struct inode *newdir, struct dentry *newent,
 			 unsigned int flags);
-void *fuse_rename2_finalize(struct fuse_args *fa,
+void *fuse_rename2_finalize(struct fuse_bpf_args *fa,
 			    struct inode *olddir, struct dentry *oldent,
 			    struct inode *newdir, struct dentry *newent,
 			    unsigned int flags);
 
-int fuse_rename_initialize(struct fuse_args *fa, struct fuse_rename_in *fri,
+int fuse_rename_initialize(struct fuse_bpf_args *fa, struct fuse_rename_in *fri,
 			   struct inode *olddir, struct dentry *oldent,
 			   struct inode *newdir, struct dentry *newent);
-int fuse_rename_backing(struct fuse_args *fa,
+int fuse_rename_backing(struct fuse_bpf_args *fa,
 			struct inode *olddir, struct dentry *oldent,
 			struct inode *newdir, struct dentry *newent);
-void *fuse_rename_finalize(struct fuse_args *fa,
+void *fuse_rename_finalize(struct fuse_bpf_args *fa,
 			   struct inode *olddir, struct dentry *oldent,
 			   struct inode *newdir, struct dentry *newent);
 
 int fuse_unlink_initialize(
-		struct fuse_args *fa, struct fuse_dummy_io *fmi,
+		struct fuse_bpf_args *fa, struct fuse_dummy_io *fmi,
 		struct inode *dir, struct dentry *entry);
 int fuse_unlink_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry);
 void *fuse_unlink_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry);
 
-int fuse_link_initialize(struct fuse_args *fa, struct fuse_link_in *fli,
+int fuse_link_initialize(struct fuse_bpf_args *fa, struct fuse_link_in *fli,
 			  struct dentry *entry, struct inode *dir,
 			  struct dentry *newent);
-int fuse_link_backing(struct fuse_args *fa, struct dentry *entry,
+int fuse_link_backing(struct fuse_bpf_args *fa, struct dentry *entry,
 		      struct inode *dir, struct dentry *newent);
-void *fuse_link_finalize(struct fuse_args *fa, struct dentry *entry,
+void *fuse_link_finalize(struct fuse_bpf_args *fa, struct dentry *entry,
 			 struct inode *dir, struct dentry *newent);
 
-int fuse_release_initialize(struct fuse_args *fa, struct fuse_release_in *fri,
+int fuse_release_initialize(struct fuse_bpf_args *fa, struct fuse_release_in *fri,
 			    struct inode *inode, struct file *file);
-int fuse_releasedir_initialize(struct fuse_args *fa,
+int fuse_releasedir_initialize(struct fuse_bpf_args *fa,
 			struct fuse_release_in *fri,
 			struct inode *inode, struct file *file);
-int fuse_release_backing(struct fuse_args *fa,
+int fuse_release_backing(struct fuse_bpf_args *fa,
 			 struct inode *inode, struct file *file);
-void *fuse_release_finalize(struct fuse_args *fa,
+void *fuse_release_finalize(struct fuse_bpf_args *fa,
 			    struct inode *inode, struct file *file);
 
-int fuse_flush_initialize(struct fuse_args *fa, struct fuse_flush_in *ffi,
+int fuse_flush_initialize(struct fuse_bpf_args *fa, struct fuse_flush_in *ffi,
 			  struct file *file, fl_owner_t id);
-int fuse_flush_backing(struct fuse_args *fa, struct file *file, fl_owner_t id);
-void *fuse_flush_finalize(struct fuse_args *fa,
+int fuse_flush_backing(struct fuse_bpf_args *fa, struct file *file, fl_owner_t id);
+void *fuse_flush_finalize(struct fuse_bpf_args *fa,
 			  struct file *file, fl_owner_t id);
 
 struct fuse_lseek_io {
@@ -1434,37 +1470,37 @@ struct fuse_lseek_io {
 	struct fuse_lseek_out flo;
 };
 
-int fuse_lseek_initialize(struct fuse_args *fa, struct fuse_lseek_io *fli,
+int fuse_lseek_initialize(struct fuse_bpf_args *fa, struct fuse_lseek_io *fli,
 			  struct file *file, loff_t offset, int whence);
-int fuse_lseek_backing(struct fuse_args *fa, struct file *file, loff_t offset, int whence);
-void *fuse_lseek_finalize(struct fuse_args *fa, struct file *file, loff_t offset, int whence);
+int fuse_lseek_backing(struct fuse_bpf_args *fa, struct file *file, loff_t offset, int whence);
+void *fuse_lseek_finalize(struct fuse_bpf_args *fa, struct file *file, loff_t offset, int whence);
 
 struct fuse_copy_file_range_io {
 	struct fuse_copy_file_range_in fci;
 	struct fuse_write_out fwo;
 };
 
-int fuse_copy_file_range_initialize(struct fuse_args *fa,
+int fuse_copy_file_range_initialize(struct fuse_bpf_args *fa,
 				   struct fuse_copy_file_range_io *fcf,
 				   struct file *file_in, loff_t pos_in,
 				   struct file *file_out, loff_t pos_out,
 				   size_t len, unsigned int flags);
-int fuse_copy_file_range_backing(struct fuse_args *fa,
+int fuse_copy_file_range_backing(struct fuse_bpf_args *fa,
 				 struct file *file_in, loff_t pos_in,
 				 struct file *file_out, loff_t pos_out,
 				 size_t len, unsigned int flags);
-void *fuse_copy_file_range_finalize(struct fuse_args *fa,
+void *fuse_copy_file_range_finalize(struct fuse_bpf_args *fa,
 				    struct file *file_in, loff_t pos_in,
 				    struct file *file_out, loff_t pos_out,
 				    size_t len, unsigned int flags);
 
-int fuse_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+int fuse_fsync_initialize(struct fuse_bpf_args *fa, struct fuse_fsync_in *ffi,
 		   struct file *file, loff_t start, loff_t end, int datasync);
-int fuse_fsync_backing(struct fuse_args *fa,
+int fuse_fsync_backing(struct fuse_bpf_args *fa,
 		   struct file *file, loff_t start, loff_t end, int datasync);
-void *fuse_fsync_finalize(struct fuse_args *fa,
+void *fuse_fsync_finalize(struct fuse_bpf_args *fa,
 		   struct file *file, loff_t start, loff_t end, int datasync);
-int fuse_dir_fsync_initialize(struct fuse_args *fa, struct fuse_fsync_in *ffi,
+int fuse_dir_fsync_initialize(struct fuse_bpf_args *fa, struct fuse_fsync_in *ffi,
 		   struct file *file, loff_t start, loff_t end, int datasync);
 
 struct fuse_getxattr_io {
@@ -1473,43 +1509,43 @@ struct fuse_getxattr_io {
 };
 
 int fuse_getxattr_initialize(
-		struct fuse_args *fa, struct fuse_getxattr_io *fgio,
+		struct fuse_bpf_args *fa, struct fuse_getxattr_io *fgio,
 		struct dentry *dentry, const char *name, void *value,
 		size_t size);
 int fuse_getxattr_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct dentry *dentry, const char *name, void *value,
 		size_t size);
 void *fuse_getxattr_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct dentry *dentry, const char *name, void *value,
 		size_t size);
 
-int fuse_listxattr_initialize(struct fuse_args *fa,
+int fuse_listxattr_initialize(struct fuse_bpf_args *fa,
 			       struct fuse_getxattr_io *fgio,
 			       struct dentry *dentry, char *list, size_t size);
-int fuse_listxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+int fuse_listxattr_backing(struct fuse_bpf_args *fa, struct dentry *dentry,
 			   char *list, size_t size);
-void *fuse_listxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+void *fuse_listxattr_finalize(struct fuse_bpf_args *fa, struct dentry *dentry,
 			      char *list, size_t size);
 
-int fuse_setxattr_initialize(struct fuse_args *fa,
+int fuse_setxattr_initialize(struct fuse_bpf_args *fa,
 			     struct fuse_setxattr_in *fsxi,
 			     struct dentry *dentry, const char *name,
 			     const void *value, size_t size, int flags);
-int fuse_setxattr_backing(struct fuse_args *fa, struct dentry *dentry,
+int fuse_setxattr_backing(struct fuse_bpf_args *fa, struct dentry *dentry,
 			  const char *name, const void *value, size_t size,
 			  int flags);
-void *fuse_setxattr_finalize(struct fuse_args *fa, struct dentry *dentry,
+void *fuse_setxattr_finalize(struct fuse_bpf_args *fa, struct dentry *dentry,
 			     const char *name, const void *value, size_t size,
 			     int flags);
 
-int fuse_removexattr_initialize(struct fuse_args *fa,
+int fuse_removexattr_initialize(struct fuse_bpf_args *fa,
 				struct fuse_dummy_io *unused,
 				struct dentry *dentry, const char *name);
-int fuse_removexattr_backing(struct fuse_args *fa,
+int fuse_removexattr_backing(struct fuse_bpf_args *fa,
 			     struct dentry *dentry, const char *name);
-void *fuse_removexattr_finalize(struct fuse_args *fa,
+void *fuse_removexattr_finalize(struct fuse_bpf_args *fa,
 				struct dentry *dentry, const char *name);
 
 struct fuse_read_iter_out {
@@ -1521,11 +1557,11 @@ struct fuse_file_read_iter_io {
 };
 
 int fuse_file_read_iter_initialize(
-		struct fuse_args *fa, struct fuse_file_read_iter_io *fri,
+		struct fuse_bpf_args *fa, struct fuse_file_read_iter_io *fri,
 		struct kiocb *iocb, struct iov_iter *to);
-int fuse_file_read_iter_backing(struct fuse_args *fa,
+int fuse_file_read_iter_backing(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *to);
-void *fuse_file_read_iter_finalize(struct fuse_args *fa,
+void *fuse_file_read_iter_finalize(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *to);
 
 struct fuse_write_iter_out {
@@ -1538,21 +1574,21 @@ struct fuse_file_write_iter_io {
 };
 
 int fuse_file_write_iter_initialize(
-		struct fuse_args *fa, struct fuse_file_write_iter_io *fwio,
+		struct fuse_bpf_args *fa, struct fuse_file_write_iter_io *fwio,
 		struct kiocb *iocb, struct iov_iter *from);
-int fuse_file_write_iter_backing(struct fuse_args *fa,
+int fuse_file_write_iter_backing(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *from);
-void *fuse_file_write_iter_finalize(struct fuse_args *fa,
+void *fuse_file_write_iter_finalize(struct fuse_bpf_args *fa,
 		struct kiocb *iocb, struct iov_iter *from);
 
 ssize_t fuse_backing_mmap(struct file *file, struct vm_area_struct *vma);
 
-int fuse_file_fallocate_initialize(struct fuse_args *fa,
+int fuse_file_fallocate_initialize(struct fuse_bpf_args *fa,
 		struct fuse_fallocate_in *ffi,
 		struct file *file, int mode, loff_t offset, loff_t length);
-int fuse_file_fallocate_backing(struct fuse_args *fa,
+int fuse_file_fallocate_backing(struct fuse_bpf_args *fa,
 		struct file *file, int mode, loff_t offset, loff_t length);
-void *fuse_file_fallocate_finalize(struct fuse_args *fa,
+void *fuse_file_fallocate_finalize(struct fuse_bpf_args *fa,
 		struct file *file, int mode, loff_t offset, loff_t length);
 
 struct fuse_lookup_io {
@@ -1560,24 +1596,24 @@ struct fuse_lookup_io {
 	struct fuse_entry_bpf feb;
 };
 
-int fuse_lookup_initialize(struct fuse_args *fa, struct fuse_lookup_io *feo,
+int fuse_lookup_initialize(struct fuse_bpf_args *fa, struct fuse_lookup_io *feo,
 	       struct inode *dir, struct dentry *entry, unsigned int flags);
-int fuse_lookup_backing(struct fuse_args *fa, struct inode *dir,
+int fuse_lookup_backing(struct fuse_bpf_args *fa, struct inode *dir,
 			  struct dentry *entry, unsigned int flags);
-struct dentry *fuse_lookup_finalize(struct fuse_args *fa, struct inode *dir,
+struct dentry *fuse_lookup_finalize(struct fuse_bpf_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags);
-int fuse_revalidate_backing(struct fuse_args *fa, struct inode *dir,
+int fuse_revalidate_backing(struct fuse_bpf_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags);
-void *fuse_revalidate_finalize(struct fuse_args *fa, struct inode *dir,
+void *fuse_revalidate_finalize(struct fuse_bpf_args *fa, struct inode *dir,
 			   struct dentry *entry, unsigned int flags);
 
-int fuse_canonical_path_initialize(struct fuse_args *fa,
+int fuse_canonical_path_initialize(struct fuse_bpf_args *fa,
 				   struct fuse_dummy_io *fdi,
 				   const struct path *path,
 				   struct path *canonical_path);
-int fuse_canonical_path_backing(struct fuse_args *fa, const struct path *path,
+int fuse_canonical_path_backing(struct fuse_bpf_args *fa, const struct path *path,
 				struct path *canonical_path);
-void *fuse_canonical_path_finalize(struct fuse_args *fa,
+void *fuse_canonical_path_finalize(struct fuse_bpf_args *fa,
 				   const struct path *path,
 				   struct path *canonical_path);
 
@@ -1585,13 +1621,13 @@ struct fuse_getattr_io {
 	struct fuse_getattr_in fgi;
 	struct fuse_attr_out fao;
 };
-int fuse_getattr_initialize(struct fuse_args *fa, struct fuse_getattr_io *fgio,
+int fuse_getattr_initialize(struct fuse_bpf_args *fa, struct fuse_getattr_io *fgio,
 			const struct dentry *entry, struct kstat *stat,
 			u32 request_mask, unsigned int flags);
-int fuse_getattr_backing(struct fuse_args *fa,
+int fuse_getattr_backing(struct fuse_bpf_args *fa,
 			const struct dentry *entry, struct kstat *stat,
 			u32 request_mask, unsigned int flags);
-void *fuse_getattr_finalize(struct fuse_args *fa,
+void *fuse_getattr_finalize(struct fuse_bpf_args *fa,
 			const struct dentry *entry, struct kstat *stat,
 			u32 request_mask, unsigned int flags);
 
@@ -1600,38 +1636,38 @@ struct fuse_setattr_io {
 	struct fuse_attr_out fao;
 };
 
-int fuse_setattr_initialize(struct fuse_args *fa, struct fuse_setattr_io *fsi,
+int fuse_setattr_initialize(struct fuse_bpf_args *fa, struct fuse_setattr_io *fsi,
 		struct dentry *dentry, struct iattr *attr, struct file *file);
-int fuse_setattr_backing(struct fuse_args *fa,
+int fuse_setattr_backing(struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct iattr *attr, struct file *file);
-void *fuse_setattr_finalize(struct fuse_args *fa,
+void *fuse_setattr_finalize(struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct iattr *attr, struct file *file);
 
-int fuse_statfs_initialize(struct fuse_args *fa, struct fuse_statfs_out *fso,
+int fuse_statfs_initialize(struct fuse_bpf_args *fa, struct fuse_statfs_out *fso,
 		struct dentry *dentry, struct kstatfs *buf);
-int fuse_statfs_backing(struct fuse_args *fa,
+int fuse_statfs_backing(struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct kstatfs *buf);
-void *fuse_statfs_finalize(struct fuse_args *fa,
+void *fuse_statfs_finalize(struct fuse_bpf_args *fa,
 		struct dentry *dentry, struct kstatfs *buf);
 
-int fuse_get_link_initialize(struct fuse_args *fa, struct fuse_dummy_io *dummy,
+int fuse_get_link_initialize(struct fuse_bpf_args *fa, struct fuse_dummy_io *dummy,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out);
-int fuse_get_link_backing(struct fuse_args *fa,
+int fuse_get_link_backing(struct fuse_bpf_args *fa,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out);
-void *fuse_get_link_finalize(struct fuse_args *fa,
+void *fuse_get_link_finalize(struct fuse_bpf_args *fa,
 		struct inode *inode, struct dentry *dentry,
 		struct delayed_call *callback, const char **out);
 
 int fuse_symlink_initialize(
-		struct fuse_args *fa, struct fuse_dummy_io *unused,
+		struct fuse_bpf_args *fa, struct fuse_dummy_io *unused,
 		struct inode *dir, struct dentry *entry, const char *link, int len);
 int fuse_symlink_backing(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, const char *link, int len);
 void *fuse_symlink_finalize(
-		struct fuse_args *fa,
+		struct fuse_bpf_args *fa,
 		struct inode *dir, struct dentry *entry, const char *link, int len);
 
 struct fuse_read_io {
@@ -1639,20 +1675,20 @@ struct fuse_read_io {
 	struct fuse_read_out fro;
 };
 
-int fuse_readdir_initialize(struct fuse_args *fa, struct fuse_read_io *frio,
+int fuse_readdir_initialize(struct fuse_bpf_args *fa, struct fuse_read_io *frio,
 			    struct file *file, struct dir_context *ctx,
 			    bool *force_again, bool *allow_force, bool is_continued);
-int fuse_readdir_backing(struct fuse_args *fa,
+int fuse_readdir_backing(struct fuse_bpf_args *fa,
 			 struct file *file, struct dir_context *ctx,
 			 bool *force_again, bool *allow_force, bool is_continued);
-void *fuse_readdir_finalize(struct fuse_args *fa,
+void *fuse_readdir_finalize(struct fuse_bpf_args *fa,
 			    struct file *file, struct dir_context *ctx,
 			    bool *force_again, bool *allow_force, bool is_continued);
 
-int fuse_access_initialize(struct fuse_args *fa, struct fuse_access_in *fai,
+int fuse_access_initialize(struct fuse_bpf_args *fa, struct fuse_access_in *fai,
 			   struct inode *inode, int mask);
-int fuse_access_backing(struct fuse_args *fa, struct inode *inode, int mask);
-void *fuse_access_finalize(struct fuse_args *fa, struct inode *inode, int mask);
+int fuse_access_backing(struct fuse_bpf_args *fa, struct inode *inode, int mask);
+void *fuse_access_finalize(struct fuse_bpf_args *fa, struct inode *inode, int mask);
 
 /*
  * FUSE caches dentries and attributes with separate timeout.  The
@@ -1791,16 +1827,18 @@ struct fuse_err_ret {
 int __init fuse_bpf_init(void);
 void __exit fuse_bpf_cleanup(void);
 
+ssize_t fuse_bpf_simple_request(struct fuse_mount *fm, struct fuse_bpf_args *args);
+
 /*
  * expression statement to wrap the backing filter logic
  * struct inode *inode: inode with bpf and backing inode
  * typedef io: (typically complex) type whose components fuse_args can point to.
  *	An instance of this type is created locally and passed to initialize
- * void initialize(struct fuse_args *fa, io *in_out, args...): function that sets
+ * void initialize(struct fuse_bpf_args *fa, io *in_out, args...): function that sets
  *	up fa and io based on args
- * int backing(struct fuse_args *fa, args...): function that actually performs
+ * int backing(struct fuse_bpf_args *fa, args...): function that actually performs
  *	the backing io operation
- * void *finalize(struct fuse_args *, args...): function that performs any final
+ * void *finalize(struct fuse_bpf_args *, args...): function that performs any final
  *	work needed to commit the backing io
  */
 #define fuse_bpf_backing(inode, io, initialize, backing, finalize,	\
@@ -1811,7 +1849,7 @@ void __exit fuse_bpf_cleanup(void);
 	struct fuse_inode *fuse_inode = get_fuse_inode(inode);		\
 	struct fuse_mount *fm = get_fuse_mount(inode);			\
 	io feo = {0};							\
-	struct fuse_args fa = {0}, fa_backup = {0};			\
+	struct fuse_bpf_args fa = {0}, fa_backup = {0};			\
 	bool locked;							\
 	ssize_t res;							\
 	void *err;							\
@@ -1835,7 +1873,7 @@ void __exit fuse_bpf_cleanup(void);
 		fa_backup = fa;						\
 		fa.opcode |= FUSE_PREFILTER;				\
 		for (i = 0; i < fa.in_numargs; ++i)			\
-			fa.out_args[i] = (struct fuse_arg) {		\
+			fa.out_args[i] = (struct fuse_bpf_arg) {	\
 				.size = fa.in_args[i].size,		\
 				.value = (void *)fa.in_args[i].value,	\
 			};						\
@@ -1854,7 +1892,7 @@ void __exit fuse_bpf_cleanup(void);
 									\
 		if (ext_flags & FUSE_BPF_USER_FILTER) {			\
 			locked = fuse_lock_inode(inode);		\
-			res = fuse_simple_request(fm, &fa);		\
+			res = fuse_bpf_simple_request(fm, &fa);		\
 			fuse_unlock_inode(inode, locked);		\
 			if (res < 0) {					\
 				fer = (struct fuse_err_ret) {		\
@@ -1870,12 +1908,12 @@ void __exit fuse_bpf_cleanup(void);
 									\
 		fa.opcode &= ~FUSE_PREFILTER;				\
 		for (i = 0; i < fa.in_numargs; ++i)			\
-			fa.in_args[i] = (struct fuse_in_arg) {		\
+			fa.in_args[i] = (struct fuse_bpf_in_arg) {	\
 				.size = fa.out_args[i].size,		\
 				.value = fa.out_args[i].value,		\
 			};						\
-		for (i = 0; i < fa.out_numargs; ++i)			\
-			fa.out_args[i] = (struct fuse_arg) {		\
+		for (i = 0; i < fa_backup.out_numargs; ++i)		\
+			fa.out_args[i] = (struct fuse_bpf_arg) {	\
 				.size = fa_backup.out_args[i].size,	\
 				.value = fa_backup.out_args[i].value,	\
 			};						\
@@ -1893,7 +1931,7 @@ void __exit fuse_bpf_cleanup(void);
 		fa.opcode |= FUSE_POSTFILTER;				\
 		for (i = 0; i < fa.out_numargs; ++i)			\
 			fa.in_args[fa.in_numargs++] =			\
-				(struct fuse_in_arg) {			\
+				(struct fuse_bpf_in_arg) {		\
 					.size = fa.out_args[i].size,	\
 					.value = fa.out_args[i].value,	\
 				};					\
@@ -1912,7 +1950,7 @@ void __exit fuse_bpf_cleanup(void);
 		fa.out_args[1].size = fa_backup.out_args[1].size;	\
 		fa.out_numargs = fa_backup.out_numargs;			\
 		locked = fuse_lock_inode(inode);			\
-		res = fuse_simple_request(fm, &fa);			\
+		res = fuse_bpf_simple_request(fm, &fa);			\
 		fuse_unlock_inode(inode, locked);			\
 		if (res < 0) {						\
 			fer.result = ERR_PTR(res);			\
diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h
index cd894eaea3496..142c98a3497d9 100644
--- a/include/linux/bpf_types.h
+++ b/include/linux/bpf_types.h
@@ -78,7 +78,7 @@ BPF_PROG_TYPE(BPF_PROG_TYPE_LSM, lsm,
 #endif /* CONFIG_BPF_LSM */
 #endif
 #ifdef CONFIG_FUSE_BPF
-BPF_PROG_TYPE(BPF_PROG_TYPE_FUSE, fuse, struct fuse_args, struct fuse_args)
+BPF_PROG_TYPE(BPF_PROG_TYPE_FUSE, fuse, struct fuse_bpf_args, struct fuse_bpf_args)
 #endif
 
 BPF_MAP_TYPE(BPF_MAP_TYPE_ARRAY, array_map_ops)
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 98aaf3d84c5d0..f0521a39a5863 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -965,42 +965,44 @@ struct fuse_removemapping_one {
 #define FUSE_REMOVEMAPPING_MAX_ENTRY   \
 		(PAGE_SIZE / sizeof(struct fuse_removemapping_one))
 
-struct fuse_mount;
+/*
+ * Fuse BPF Args
+ *
+ * Used to communicate with bpf programs to allow checking or altering certain values.
+ * The end_offset allows the bpf verifier to check boundaries statically. This reflects
+ * the ends of the buffer. size shows the length that was actually used.
+ *
+ */
 
 /** One input argument of a request */
-struct fuse_in_arg {
-	unsigned size;
+struct fuse_bpf_in_arg {
+	uint32_t size;
 	const void *value;
+	const void *end_offset;
 };
 
 /** One output argument of a request */
-struct fuse_arg {
-	unsigned size;
+struct fuse_bpf_arg {
+	uint32_t size;
 	void *value;
+	void *end_offset;
 };
 
-struct fuse_args {
+#define FUSE_MAX_IN_ARGS 5
+#define FUSE_MAX_OUT_ARGS 3
+
+#define FUSE_BPF_FORCE (1 << 0)
+#define FUSE_BPF_OUT_ARGVAR (1 << 6)
+
+struct fuse_bpf_args {
 	uint64_t nodeid;
 	uint32_t opcode;
 	uint32_t error_in;
-	unsigned short in_numargs;
-	unsigned short out_numargs;
-	int force:1;
-	int noreply:1;
-	int nocreds:1;
-	int in_pages:1;
-	int out_pages:1;
-	int user_pages:1;
-	int out_argvar:1;
-	int page_zeroing:1;
-	int page_replace:1;
-	int may_block:1;
-	struct fuse_in_arg in_args[5];
-	struct fuse_arg out_args[3];
-	void (*end)(struct fuse_mount *fm, struct fuse_args *args, int error);
-
-	/* Path used for completing d_canonical_path */
-	struct path *canonical_path;
+	uint32_t in_numargs;
+	uint32_t out_numargs;
+	uint32_t flags;
+	struct fuse_bpf_in_arg in_args[FUSE_MAX_IN_ARGS];
+	struct fuse_bpf_arg out_args[FUSE_MAX_OUT_ARGS];
 };
 
 #define FUSE_BPF_USER_FILTER	1
diff --git a/kernel/bpf/bpf_fuse.c b/kernel/bpf/bpf_fuse.c
index 2a4db5ce06b48..00738c84b76e6 100644
--- a/kernel/bpf/bpf_fuse.c
+++ b/kernel/bpf/bpf_fuse.c
@@ -36,12 +36,12 @@ static bool fuse_prog_is_valid_access(int off, int size,
 {
 	int i;
 
-	if (off < 0 || off > offsetofend(struct fuse_args, out_args))
+	if (off < 0 || off > offsetofend(struct fuse_bpf_args, out_args))
 		return false;
 
 	/* TODO This is garbage. Do it properly */
 	for (i = 0; i < 5; i++) {
-		if (off == offsetof(struct fuse_args, in_args[i].value)) {
+		if (off == offsetof(struct fuse_bpf_args, in_args[i].value)) {
 			info->reg_type = PTR_TO_RDONLY_BUF;
 			info->ctx_field_size = 256;
 			if (type != BPF_READ)
@@ -50,7 +50,7 @@ static bool fuse_prog_is_valid_access(int off, int size,
 		}
 	}
 	for (i = 0; i < 3; i++) {
-		if (off == offsetof(struct fuse_args, out_args[i].value)) {
+		if (off == offsetof(struct fuse_bpf_args, out_args[i].value)) {
 			info->reg_type = PTR_TO_RDWR_BUF;
 			info->ctx_field_size = 256;
 			return true;
diff --git a/tools/testing/selftests/filesystems/fuse/fd_bpf.c b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
index f9102058515ff..ebf5c92c92972 100644
--- a/tools/testing/selftests/filesystems/fuse/fd_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/fd_bpf.c
@@ -74,7 +74,7 @@ SEC("maps") struct fuse_bpf_map test_map2 = {
 
 SEC("test_daemon")
 
-int trace_daemon(struct fuse_args *fa)
+int trace_daemon(struct fuse_bpf_args *fa)
 {
 	uint64_t uid_gid = bpf_get_current_uid_gid();
 	uint32_t uid = uid_gid & 0xffffffff;
diff --git a/tools/testing/selftests/filesystems/fuse/test_bpf.c b/tools/testing/selftests/filesystems/fuse/test_bpf.c
index 8afef42b4657a..3f4a9e727b683 100644
--- a/tools/testing/selftests/filesystems/fuse/test_bpf.c
+++ b/tools/testing/selftests/filesystems/fuse/test_bpf.c
@@ -35,7 +35,7 @@ inline int strcmp(const char *a, const char *b)
 }
 SEC("test_readdir_redact")
 /* return FUSE_BPF_BACKING to use backing fs, 0 to pass to usermode */
-int readdir_test(struct fuse_args *fa)
+int readdir_test(struct fuse_bpf_args *fa)
 {
 	switch (fa->opcode) {
 	case FUSE_READDIR | FUSE_PREFILTER: {
@@ -60,7 +60,7 @@ int readdir_test(struct fuse_args *fa)
 SEC("test_trace")
 
 /* return FUSE_BPF_BACKING to use backing fs, 0 to pass to usermode */
-int trace_test(struct fuse_args *fa)
+int trace_test(struct fuse_bpf_args *fa)
 {
 	switch (fa->opcode) {
 	case FUSE_LOOKUP | FUSE_PREFILTER: {
@@ -361,7 +361,7 @@ int trace_test(struct fuse_args *fa)
 
 SEC("test_hidden")
 
-int trace_hidden(struct fuse_args *fa)
+int trace_hidden(struct fuse_bpf_args *fa)
 {
 	switch (fa->opcode) {
 	case FUSE_LOOKUP | FUSE_PREFILTER: {
@@ -418,7 +418,7 @@ int trace_hidden(struct fuse_args *fa)
 }
 
 SEC("test_simple")
-int trace_simple(struct fuse_args *fa)
+int trace_simple(struct fuse_bpf_args *fa)
 {
 	if (fa->opcode & FUSE_PREFILTER)
 		bpf_printk("prefilter opcode: %d",
@@ -432,7 +432,7 @@ int trace_simple(struct fuse_args *fa)
 }
 
 SEC("test_passthrough")
-int trace_daemon(struct fuse_args *fa)
+int trace_daemon(struct fuse_bpf_args *fa)
 {
 	switch (fa->opcode) {
 	case FUSE_LOOKUP | FUSE_PREFILTER: {
@@ -468,7 +468,7 @@ int trace_daemon(struct fuse_args *fa)
 SEC("test_error")
 
 /* return FUSE_BPF_BACKING to use backing fs, 0 to pass to usermode */
-int error_test(struct fuse_args *fa)
+int error_test(struct fuse_bpf_args *fa)
 {
 	switch (fa->opcode) {
 	case FUSE_MKDIR | FUSE_PREFILTER: {
-- 
GitLab


From d4d78c7278ee4f6fd8f3b02c18e472e55558a98b Mon Sep 17 00:00:00 2001
From: Daniel Rosenberg <drosen@google.com>
Date: Wed, 20 Apr 2022 13:44:15 -0700
Subject: [PATCH 4765/4878] ANDROID: fuse-bpf: Fix non-fusebpf build

Added #ifdefs around fuse-bpf init/cleanup code

Bug: 202785178
Test: builds with and without CONFIG_FUSE_BPF
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Change-Id: Ie15bb04e439b496e4842303437b3f55c3da14f2c
---
 fs/fuse/inode.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 7092ca58040c4..fa692f9e4ef34 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1903,17 +1903,21 @@ static int __init fuse_init(void)
 	if (res)
 		goto err_sysfs_cleanup;
 
+#ifdef CONFIG_FUSE_BPF
 	res = fuse_bpf_init();
 	if (res)
 		goto err_ctl_cleanup;
+#endif
 
 	sanitize_global_limit(&max_user_bgreq);
 	sanitize_global_limit(&max_user_congthresh);
 
 	return 0;
 
+#ifdef CONFIG_FUSE_BPF
  err_ctl_cleanup:
 	fuse_ctl_cleanup();
+#endif
  err_sysfs_cleanup:
 	fuse_sysfs_cleanup();
  err_dev_cleanup:
@@ -1931,7 +1935,9 @@ static void __exit fuse_exit(void)
 	fuse_ctl_cleanup();
 	fuse_sysfs_cleanup();
 	fuse_fs_cleanup();
+#ifdef CONFIG_FUSE_BPF
 	fuse_bpf_cleanup();
+#endif
 	fuse_dev_cleanup();
 }
 
-- 
GitLab


From c383610d0fee9c0d968d7fef60fbae801c520662 Mon Sep 17 00:00:00 2001
From: Zhang Qilong <zhangqilong3@huawei.com>
Date: Mon, 26 Oct 2020 19:03:14 +0800
Subject: [PATCH 4766/4878] UPSTREAM: binder: change error code from postive to
 negative in binder_transaction

Depending on the context, the error return value
here (extra_buffers_size < added_size) should be
negative.

Acked-by: Martijn Coenen <maco@android.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201026110314.135481-1-zhangqilong3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 88f6c77927e4aee04e0193fd94e13a55753a72b0)
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Change-Id: If90760a8469f33bb121f0f71098b9415f6d4d783
---
 drivers/android/binder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index bcf0ae355bc64..a367ebf160be5 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2892,7 +2892,7 @@ static void binder_transaction(struct binder_proc *proc,
 		if (extra_buffers_size < added_size) {
 			/* integer overflow of extra_buffers_size */
 			return_error = BR_FAILED_REPLY;
-			return_error_param = EINVAL;
+			return_error_param = -EINVAL;
 			return_error_line = __LINE__;
 			goto err_bad_extra_size;
 		}
-- 
GitLab


From 7a9a5324327dc2b02df9a4967ba317b2a4d416aa Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 3 Mar 2022 09:38:47 -0500
Subject: [PATCH 4767/4878] BACKPORT: ext4: don't BUG if someone dirty pages
 without asking ext4 first

[ Upstream commit cc5095747edfb054ca2068d01af20be3fcc3634f ]

[un]pin_user_pages_remote is dirtying pages without properly warning
the file system in advance.  A related race was noted by Jan Kara in
2018[1]; however, more recently instead of it being a very hard-to-hit
race, it could be reliably triggered by process_vm_writev(2) which was
discovered by Syzbot[2].

This is technically a bug in mm/gup.c, but arguably ext4 is fragile in
that if some other kernel subsystem dirty pages without properly
notifying the file system using page_mkwrite(), ext4 will BUG, while
other file systems will not BUG (although data will still be lost).

So instead of crashing with a BUG, issue a warning (since there may be
potential data loss) and just mark the page as clean to avoid
unprivileged denial of service attacks until the problem can be
properly fixed.  More discussion and background can be found in the
thread starting at [2].

[1] https://lore.kernel.org/linux-mm/20180103100430.GE4911@quack2.suse.cz
[2] https://lore.kernel.org/r/Yg0m6IjcNmfaSokM@google.com

Reported-by: syzbot+d59332e2db681cf18f0318a06e994ebbb529a8db@syzkaller.appspotmail.com
Reported-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/YiDS9wVfq4mM2jGK@mit.edu
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: Ifa528c386540d70eafb7ec55b238add0c6ba7387
---
 fs/ext4/inode.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 2c39d9733f283..04c51065c1c99 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2036,6 +2036,15 @@ static int ext4_writepage(struct page *page,
 	else
 		len = PAGE_SIZE;
 
+	/* Should never happen but for bugs in other kernel subsystems */
+	if (!page_has_buffers(page)) {
+		ext4_warning_inode(inode,
+		   "page %lu does not have buffers attached", page->index);
+		ClearPageDirty(page);
+		unlock_page(page);
+		return 0;
+	}
+
 	page_bufs = page_buffers(page);
 	/*
 	 * We cannot do block allocation or other extent handling in this
@@ -2639,6 +2648,22 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
 			wait_on_page_writeback(page);
 			BUG_ON(PageWriteback(page));
 
+			/*
+			 * Should never happen but for buggy code in
+			 * other subsystems that call
+			 * set_page_dirty() without properly warning
+			 * the file system first.  See [1] for more
+			 * information.
+			 *
+			 * [1] https://lore.kernel.org/linux-mm/20180103100430.GE4911@quack2.suse.cz
+			 */
+			if (!page_has_buffers(page)) {
+				ext4_warning_inode(mpd->inode, "page %lu does not have buffers attached", page->index);
+				ClearPageDirty(page);
+				unlock_page(page);
+				continue;
+			}
+
 			if (mpd->map.m_len == 0)
 				mpd->first_page = page->index;
 			mpd->next_page = page->index + 1;
-- 
GitLab


From c43dfe89feb794ef85a90f3e3fbf0fe6965fefb2 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 20 Apr 2022 14:42:50 +0100
Subject: [PATCH 4768/4878] ANDROID: KVM: arm64: s2mpu: Extract L1ENTRY_*
 consts

Extract the L1ENTRY_ATTR_{PRON,GRAN}_MASK constants out of macros that
create the corresponding constants. This will allow EL1 users to use the
masks to get the fields out of register values. Also extract
L1ENTRY_L2TABLE_ADDR_SHIFT for adjusting the L2 table address.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I45578857694ca39266fe45b3c00dbea33738167f
---
 arch/arm64/include/asm/kvm_s2mpu.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index 0804ece03cfd6..d60790029e1fc 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -94,14 +94,17 @@
 #define FAULT_INFO_LEN_MASK			GENMASK(19, 16)
 #define FAULT_INFO_ID_MASK			GENMASK(15, 0)
 
-#define L1ENTRY_L2TABLE_ADDR(pa)		((pa) >> 4)
+#define L1ENTRY_L2TABLE_ADDR_SHIFT		4
+#define L1ENTRY_L2TABLE_ADDR(pa)		((pa) >> L1ENTRY_L2TABLE_ADDR_SHIFT)
 
 #define L1ENTRY_ATTR_L2TABLE_EN			BIT(0)
 #define L1ENTRY_ATTR_GRAN_4K			0x0
 #define L1ENTRY_ATTR_GRAN_64K			0x1
 #define L1ENTRY_ATTR_GRAN_2M			0x2
-#define L1ENTRY_ATTR_PROT(prot)			FIELD_PREP(GENMASK(2, 1), prot)
-#define L1ENTRY_ATTR_GRAN(gran)			FIELD_PREP(GENMASK(5, 4), gran)
+#define L1ENTRY_ATTR_PROT_MASK			GENMASK(2, 1)
+#define L1ENTRY_ATTR_GRAN_MASK			GENMASK(5, 4)
+#define L1ENTRY_ATTR_PROT(prot)			FIELD_PREP(L1ENTRY_ATTR_PROT_MASK, prot)
+#define L1ENTRY_ATTR_GRAN(gran)			FIELD_PREP(L1ENTRY_ATTR_GRAN_MASK, gran)
 #define L1ENTRY_ATTR_1G(prot)			L1ENTRY_ATTR_PROT(prot)
 #define L1ENTRY_ATTR_L2(gran)			(L1ENTRY_ATTR_GRAN(gran) | \
 						 L1ENTRY_ATTR_L2TABLE_EN)
-- 
GitLab


From 96767ad7bec869c1aee13f0c9680b2ed3d895db9 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 21 Apr 2022 11:00:33 +0100
Subject: [PATCH 4769/4878] ANDROID: KVM: arm64: s2mpu: Refactor DABT handler

In preparation for adding more entries to the list of S2MPU registers
accessible to the host, refactor the code to use a switch instead of
a series of ifs. No functional change intended.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I70afa8f755d6d96916cdc1f813e6506e97e761c0
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 508f5fd5ad666..8ff0daeae1766 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -393,15 +393,16 @@ static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
 	const u32 write_only = is_write ? read_write : no_access;
 	u32 masked_off;
 
-	/* IRQ handler can clear interrupts. */
-	if (off == REG_NS_INTERRUPT_CLEAR)
+	switch (off) {
+	/* Allow EL1 IRQ handler to clear interrupts. */
+	case REG_NS_INTERRUPT_CLEAR:
 		return write_only & ALL_VIDS_BITMAP;
-
-	/* IRQ handler can read bitmap of pending interrupts. */
-	if (off == REG_NS_FAULT_STATUS)
+	/* Allow EL1 IRQ handler to read bitmap of pending interrupts. */
+	case REG_NS_FAULT_STATUS:
 		return read_only & ALL_VIDS_BITMAP;
+	}
 
-	/* IRQ handler can read fault information. */
+	/* Allow EL1 IRQ handler to read fault information. */
 	masked_off = off & ~REG_NS_FAULT_VID_MASK;
 	if ((masked_off == REG_NS_FAULT_PA_LOW(0)) ||
 	    (masked_off == REG_NS_FAULT_PA_HIGH(0)) ||
-- 
GitLab


From e56d9603a633e7320ea1973ec0c4474b4cb7392c Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 20 Apr 2022 14:43:46 +0100
Subject: [PATCH 4770/4878] ANDROID: KVM: arm64: s2mpu: Allow L1ENTRY_* r/o
 access

Allow read-only access to L1ENTRY_ATTR and L1ENTRY_L2TABLE S2MPU
registers. This allows the host to dump the register state for debugging
purposes. It is safe because the state of the S2MPU is known to the host
anyway.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I4fbcc3f7fac3f51ed47ba85ee4eb408fbf154e2d
---
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 8ff0daeae1766..89967f2fefcd8 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -402,6 +402,11 @@ static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
 		return read_only & ALL_VIDS_BITMAP;
 	}
 
+	/* Allow reading L1ENTRY registers for debugging. */
+	if (off >= REG_NS_L1ENTRY_L2TABLE_ADDR(0, 0) &&
+	    off < REG_NS_L1ENTRY_ATTR(NR_VIDS, 0))
+		return read_only;
+
 	/* Allow EL1 IRQ handler to read fault information. */
 	masked_off = off & ~REG_NS_FAULT_VID_MASK;
 	if ((masked_off == REG_NS_FAULT_PA_LOW(0)) ||
-- 
GitLab


From d5c0f0f937af0826e549503897fb9e9c9b22722a Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Wed, 20 Apr 2022 15:48:16 +0100
Subject: [PATCH 4771/4878] ANDROID: KVM: arm64: s2mpu: Allow reading MPTC
 entries

The state of the S2MPU does not need to be kept secret from the host as
it merely reflects the permissions that the host has and knows about.
To make debugging DMA issues easier, allow the host to query entries
from the MPTC cache. This involves writing the set and way IDs of the
query to the READ_MPTC register and then reading the MPTC entry
information from READ_MPTC_TAG_PPN/TAG_OTHERS/DATA. Modify the S2MPU
DABT handler to allow this register access pattern.

Bug: 190463801
Bug: 229793579
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: I6bbcafa6b21c541774932c3b197d2888fd50202c
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 21 +++++++++++++++++++++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c | 16 ++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index d60790029e1fc..d8c552da273ff 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -28,6 +28,7 @@
 #define REG_NS_INTERRUPT_ENABLE_PER_VID_SET	0x20
 #define REG_NS_INTERRUPT_CLEAR			0x2c
 #define REG_NS_VERSION				0x60
+#define REG_NS_INFO				0x64
 #define REG_NS_STATUS				0x68
 #define REG_NS_NUM_CONTEXT			0x100
 #define REG_NS_CONTEXT_CFG_VALID_VID		0x104
@@ -39,6 +40,10 @@
 #define REG_NS_FAULT_PA_LOW(vid)		(0x2004 + ((vid) * 0x20))
 #define REG_NS_FAULT_PA_HIGH(vid)		(0x2008 + ((vid) * 0x20))
 #define REG_NS_FAULT_INFO(vid)			(0x2010 + ((vid) * 0x20))
+#define REG_NS_READ_MPTC			0x3000
+#define REG_NS_READ_MPTC_TAG_PPN		0x3004
+#define REG_NS_READ_MPTC_TAG_OTHERS		0x3008
+#define REG_NS_READ_MPTC_DATA			0x3010
 #define REG_NS_L1ENTRY_L2TABLE_ADDR(vid, gb)	(0x4000 + ((vid) * 0x200) + ((gb) * 0x8))
 #define REG_NS_L1ENTRY_ATTR(vid, gb)		(0x4004 + ((vid) * 0x200) + ((gb) * 0x8))
 
@@ -72,6 +77,8 @@
 						 VERSION_MINOR_ARCH_VER_MASK | \
 						 VERSION_REV_ARCH_VER_MASK)
 
+#define INFO_NUM_SET_MASK			GENMASK(15, 0)
+
 #define STATUS_BUSY				BIT(0)
 #define STATUS_ON_INVALIDATING			BIT(1)
 
@@ -97,6 +104,20 @@
 #define L1ENTRY_L2TABLE_ADDR_SHIFT		4
 #define L1ENTRY_L2TABLE_ADDR(pa)		((pa) >> L1ENTRY_L2TABLE_ADDR_SHIFT)
 
+#define READ_MPTC_WAY_MASK			GENMASK(18, 16)
+#define READ_MPTC_SET_MASK			GENMASK(15, 0)
+#define READ_MPTC_MASK				(READ_MPTC_WAY_MASK | READ_MPTC_SET_MASK)
+#define READ_MPTC_WAY(way)			FIELD_PREP(READ_MPTC_WAY_MASK, (way))
+#define READ_MPTC_SET(set)			FIELD_PREP(READ_MPTC_SET_MASK, (set))
+#define READ_MPTC(set, way)			(READ_MPTC_SET(set) | READ_MPTC_WAY(way))
+#define READ_MPTC_TAG_PPN_MASK			GENMASK(23, 0)
+#define READ_MPTC_TAG_OTHERS_VID_MASK		GENMASK(10, 8)
+#define READ_MPTC_TAG_OTHERS_GRAN_MASK		GENMASK(5, 4)
+#define READ_MPTC_TAG_OTHERS_VALID_BIT		BIT(0)
+#define READ_MPTC_TAG_OTHERS_MASK		(READ_MPTC_TAG_OTHERS_VID_MASK | \
+						 READ_MPTC_TAG_OTHERS_GRAN_MASK | \
+						 READ_MPTC_TAG_OTHERS_VALID_BIT)
+
 #define L1ENTRY_ATTR_L2TABLE_EN			BIT(0)
 #define L1ENTRY_ATTR_GRAN_4K			0x0
 #define L1ENTRY_ATTR_GRAN_64K			0x1
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 89967f2fefcd8..50f842a3b0dec 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -397,9 +397,25 @@ static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
 	/* Allow EL1 IRQ handler to clear interrupts. */
 	case REG_NS_INTERRUPT_CLEAR:
 		return write_only & ALL_VIDS_BITMAP;
+	/* Allow reading number of sets used by MPTC. */
+	case REG_NS_INFO:
+		return read_only & INFO_NUM_SET_MASK;
 	/* Allow EL1 IRQ handler to read bitmap of pending interrupts. */
 	case REG_NS_FAULT_STATUS:
 		return read_only & ALL_VIDS_BITMAP;
+	/*
+	 * Allow reading MPTC entries for debugging. That involves:
+	 *   - writing (set,way) to READ_MPTC
+	 *   - reading READ_MPTC_*
+	 */
+	case REG_NS_READ_MPTC:
+		return write_only & READ_MPTC_MASK;
+	case REG_NS_READ_MPTC_TAG_PPN:
+		return read_only & READ_MPTC_TAG_PPN_MASK;
+	case REG_NS_READ_MPTC_TAG_OTHERS:
+		return read_only & READ_MPTC_TAG_OTHERS_MASK;
+	case REG_NS_READ_MPTC_DATA:
+		return read_only;
 	}
 
 	/* Allow reading L1ENTRY registers for debugging. */
-- 
GitLab


From 5d6831add7c1bb441fe410481d055e2b1c486684 Mon Sep 17 00:00:00 2001
From: David Brazdil <dbrazdil@google.com>
Date: Thu, 21 Apr 2022 10:56:36 +0100
Subject: [PATCH 4772/4878] ANDROID: KVM: arm64: s2mpu: Allow r/o access to
 control regs

To ease debugging, allow the host to read the state of S2MPU's control
registers. These values do not need to be kept secret from the host.

Bug: 190463801
Signed-off-by: David Brazdil <dbrazdil@google.com>
Change-Id: Ib9e5be443f38a0ae8fb0d4f5820017d728adf64b
---
 arch/arm64/include/asm/kvm_s2mpu.h    | 15 +++++++++++++++
 arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c |  7 +++++++
 2 files changed, 22 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_s2mpu.h b/arch/arm64/include/asm/kvm_s2mpu.h
index d8c552da273ff..b1075abd604ca 100644
--- a/arch/arm64/include/asm/kvm_s2mpu.h
+++ b/arch/arm64/include/asm/kvm_s2mpu.h
@@ -51,15 +51,30 @@
 #define CTRL0_INTERRUPT_ENABLE			BIT(1)
 #define CTRL0_FAULT_RESP_TYPE_SLVERR		BIT(2) /* for v8 */
 #define CTRL0_FAULT_RESP_TYPE_DECERR		BIT(2) /* for v9 */
+#define CTRL0_MASK				(CTRL0_ENABLE | \
+						 CTRL0_INTERRUPT_ENABLE | \
+						 CTRL0_FAULT_RESP_TYPE_SLVERR | \
+						 CTRL0_FAULT_RESP_TYPE_DECERR)
 
 #define CTRL1_DISABLE_CHK_S1L1PTW		BIT(0)
 #define CTRL1_DISABLE_CHK_S1L2PTW		BIT(1)
 #define CTRL1_ENABLE_PAGE_SIZE_AWARENESS	BIT(2)
 #define CTRL1_DISABLE_CHK_USER_MATCHED_REQ	BIT(3)
+#define CTRL1_MASK				(CTRL1_DISABLE_CHK_S1L1PTW | \
+						 CTRL1_DISABLE_CHK_S1L2PTW | \
+						 CTRL1_ENABLE_PAGE_SIZE_AWARENESS | \
+						 CTRL1_DISABLE_CHK_USER_MATCHED_REQ)
 
 #define CFG_MPTW_CACHE_OVERRIDE			BIT(0)
+#define CFG_MPTW_CACHE_VALUE			GENMASK(7, 4)
 #define CFG_MPTW_QOS_OVERRIDE			BIT(8)
+#define CFG_MPTW_QOS_VALUE			GENMASK(15, 12)
 #define CFG_MPTW_SHAREABLE			BIT(16)
+#define CFG_MASK				(CFG_MPTW_CACHE_OVERRIDE | \
+						 CFG_MPTW_CACHE_VALUE | \
+						 CFG_MPTW_QOS_OVERRIDE | \
+						 CFG_MPTW_QOS_VALUE | \
+						 CFG_MPTW_SHAREABLE)
 
 /* For use with hi_lo_readq_relaxed(). */
 #define REG_NS_FAULT_PA_HIGH_LOW(vid)		REG_NS_FAULT_PA_LOW(vid)
diff --git a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
index 50f842a3b0dec..ff5d7d1044e52 100644
--- a/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
+++ b/arch/arm64/kvm/hyp/nvhe/iommu/s2mpu.c
@@ -394,6 +394,13 @@ static u32 host_mmio_reg_access_mask(size_t off, bool is_write)
 	u32 masked_off;
 
 	switch (off) {
+	/* Allow reading control registers for debugging. */
+	case REG_NS_CTRL0:
+		return read_only & CTRL0_MASK;
+	case REG_NS_CTRL1:
+		return read_only & CTRL1_MASK;
+	case REG_NS_CFG:
+		return read_only & CFG_MASK;
 	/* Allow EL1 IRQ handler to clear interrupts. */
 	case REG_NS_INTERRUPT_CLEAR:
 		return write_only & ALL_VIDS_BITMAP;
-- 
GitLab


From f6c964af25eac4dd7fc24546b8b34ad47f1f2818 Mon Sep 17 00:00:00 2001
From: Yifan Hong <elsk@google.com>
Date: Tue, 19 Apr 2022 22:34:01 -0700
Subject: [PATCH 4773/4878] ANDROID: Suppress build.sh deprecation warnings.

build.sh will continued to be supported in android13-*
branches. To avoid confusion, suppress the deprecation
warnings when executing build.sh on android13-*.

This change also avoids the time delay for inferring
the equivalent Bazel command.

It is still encouraged to migrate build.sh to Bazel.

Test: manually execute build.sh, no deprecation warnings
Bug: 222074706
Change-Id: I8b62a442cb154f43375a9dae6593340c79ba556c
Signed-off-by: Yifan Hong <elsk@google.com>
---
 build.config.common | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/build.config.common b/build.config.common
index 339c8e25e2d8b..9a3580b33978c 100644
--- a/build.config.common
+++ b/build.config.common
@@ -14,3 +14,5 @@ IN_KERNEL_MODULES=1
 DO_NOT_STRIP_MODULES=1
 
 HERMETIC_TOOLCHAIN=${HERMETIC_TOOLCHAIN:-1}
+
+KLEAF_SUPPRESS_BUILD_SH_DEPRECATION_WARNING=${KLEAF_SUPPRESS_BUILD_SH_DEPRECATION_WARNING:-1}
-- 
GitLab


From d7b1683f783033175cdbf761cc2978df2f6f73b5 Mon Sep 17 00:00:00 2001
From: Petri Gynther <pgynther@google.com>
Date: Wed, 20 Apr 2022 14:16:31 -0700
Subject: [PATCH 4774/4878] ANDROID: add __trace_bputs() to aarch64 ABI

Add __trace_bputs() to ABI, so that vendor modules can use
trace_printk() for development debugging.

android12-5.10 already has this, so replicating for android13-5.10.

Bug: 229909445
Signed-off-by: Petri Gynther <pgynther@google.com>
Change-Id: Ida8266c92bd03aade3e93ff75393e07e6100e5ce
---
 android/abi_gki_aarch64_generic | 1 +
 1 file changed, 1 insertion(+)

diff --git a/android/abi_gki_aarch64_generic b/android/abi_gki_aarch64_generic
index 4468cab1e12a3..fc32aec4dd1e0 100644
--- a/android/abi_gki_aarch64_generic
+++ b/android/abi_gki_aarch64_generic
@@ -2159,6 +2159,7 @@
   _totalram_pages
   touch_softlockup_watchdog
   __trace_bprintk
+  __trace_bputs
   trace_event_buffer_commit
   trace_event_buffer_reserve
   trace_event_ignore_this_pid
-- 
GitLab


From df2083258dc2106a08feeafbf7971198439fe6bc Mon Sep 17 00:00:00 2001
From: Petri Gynther <pgynther@google.com>
Date: Wed, 20 Apr 2022 20:29:26 -0700
Subject: [PATCH 4775/4878] ANDROID: Update the ABI representation

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function int __trace_bputs(unsigned long int, const char*)'

Bug: 229909445
Signed-off-by: Petri Gynther <pgynther@google.com>
Change-Id: I0049c23b3948a47fc7984083a80339aced101693
---
 android/abi_gki_aarch64.xml | 399 ++++++++++++++++++++++--------------
 1 file changed, 246 insertions(+), 153 deletions(-)

diff --git a/android/abi_gki_aarch64.xml b/android/abi_gki_aarch64.xml
index d12a8a11fffe2..be34a71279005 100644
--- a/android/abi_gki_aarch64.xml
+++ b/android/abi_gki_aarch64.xml
@@ -204,6 +204,7 @@
       <elf-symbol name='__tasklet_hi_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3e3bad0a'/>
       <elf-symbol name='__tasklet_schedule' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x9d2ab8ac'/>
       <elf-symbol name='__trace_bprintk' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xa20d01ba'/>
+      <elf-symbol name='__trace_bputs' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xb1e25684'/>
       <elf-symbol name='__traceiter_android_rvh_arm64_serror_panic' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xe90dfa30'/>
       <elf-symbol name='__traceiter_android_rvh_attach_entity_load_avg' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0xc4a0bd87'/>
       <elf-symbol name='__traceiter_android_rvh_bad_mode' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes' crc='0x3dc2e9e1'/>
@@ -4314,7 +4315,7 @@
           <var-decl name='ops' type-id='76e6e22f' visibility='default' filepath='include/sound/soc-topology.h' line='68' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='' type-id='ac5ab66f' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
+          <var-decl name='' type-id='ac5ab670' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='448'>
           <var-decl name='private' type-id='eaa32e2f' visibility='default' filepath='include/sound/soc-topology.h' line='73' column='1'/>
@@ -9202,6 +9203,26 @@
         <subrange length='32' type-id='7ff19f0f' id='ae5bde82'/>
       </array-type-def>
       <pointer-type-def type-id='ed51618b' size-in-bits='64' id='11b101bb'/>
+      <class-decl name='ip_sf_list' size-in-bits='256' is-struct='yes' visibility='default' filepath='include/linux/igmp.h' line='61' column='1' id='11b31209'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='sf_next' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='62' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='sf_count' type-id='f05e8e77' visibility='default' filepath='include/linux/igmp.h' line='63' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='sf_inaddr' type-id='78a133c2' visibility='default' filepath='include/linux/igmp.h' line='64' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='224'>
+          <var-decl name='sf_gsresp' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='65' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='232'>
+          <var-decl name='sf_oldin' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='66' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='240'>
+          <var-decl name='sf_crcount' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='67' column='1'/>
+        </data-member>
+      </class-decl>
       <pointer-type-def type-id='19b26952' size-in-bits='64' id='11bff950'/>
       <function-type size-in-bits='64' id='11c513ae'>
         <parameter type-id='b4de78ea'/>
@@ -13161,7 +13182,7 @@
           <var-decl name='seq_ctrl' type-id='23119536' visibility='default' filepath='include/linux/ieee80211.h' line='1097' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='192'>
-          <var-decl name='u' type-id='ac5ab665' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
+          <var-decl name='u' type-id='ac5ab666' visibility='default' filepath='include/linux/ieee80211.h' line='1257' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='crypto_shash_spawn' size-in-bits='384' is-struct='yes' visibility='default' filepath='include/crypto/internal/hash.h' line='58' column='1' id='1aafc68e'>
@@ -15585,7 +15606,7 @@
           <var-decl name='tx_time_est' type-id='19c2251e' visibility='default' filepath='include/net/mac80211.h' line='1056' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
+          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='345f1a5f' size-in-bits='64' id='2227a3ab'/>
@@ -17583,7 +17604,7 @@
       <pointer-type-def type-id='6e44244d' size-in-bits='64' id='27b80621'/>
       <class-decl name='ieee80211_key_seq' size-in-bits='160' is-struct='yes' visibility='default' filepath='include/net/mac80211.h' line='1891' column='1' id='27ba2d9f'>
         <data-member access='public' layout-offset-in-bits='0'>
-          <var-decl name='' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
+          <var-decl name='' type-id='ac5ab662' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='f111d4f3' size-in-bits='64' id='27bb8677'/>
@@ -19659,7 +19680,7 @@
           <var-decl name='flags' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='105' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='48'>
-          <var-decl name='formula' type-id='ac5ab5bc' visibility='default' filepath='include/drm/drm_edid.h' line='124' column='1'/>
+          <var-decl name='formula' type-id='ac5ab5bd' visibility='default' filepath='include/drm/drm_edid.h' line='124' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='154f1323' size-in-bits='64' id='2d642297'/>
@@ -22621,7 +22642,7 @@
           <var-decl name='size' type-id='2f162548' visibility='default' filepath='include/uapi/sound/asoc.h' line='235' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='32'>
-          <var-decl name='' type-id='ac5ab671' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1'/>
+          <var-decl name='' type-id='ac5ab672' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1'/>
         </data-member>
       </class-decl>
       <class-decl name='usb_config_descriptor' size-in-bits='72' is-struct='yes' visibility='default' filepath='include/uapi/linux/usb/ch9.h' line='349' column='1' id='372ebfa4'>
@@ -25537,7 +25558,7 @@
           <var-decl name='fdb_nh' type-id='b50a4934' visibility='default' filepath='include/net/nexthop.h' line='57' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='' type-id='ac5ab65b' visibility='default' filepath='include/net/nexthop.h' line='59' column='1'/>
+          <var-decl name='' type-id='ac5ab65c' visibility='default' filepath='include/net/nexthop.h' line='59' column='1'/>
         </data-member>
       </class-decl>
       <function-type size-in-bits='64' id='3f0a3b53'>
@@ -26683,7 +26704,7 @@
           <var-decl name='pad2' type-id='f9b06939' visibility='default' filepath='include/drm/drm_edid.h' line='150' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='24'>
-          <var-decl name='data' type-id='ac5ab5bd' visibility='default' filepath='include/drm/drm_edid.h' line='157' column='1'/>
+          <var-decl name='data' type-id='ac5ab5be' visibility='default' filepath='include/drm/drm_edid.h' line='157' column='1'/>
         </data-member>
       </class-decl>
       <function-type size-in-bits='64' id='419202b8'>
@@ -26900,7 +26921,7 @@
           <var-decl name='indirect' type-id='f0981eeb' visibility='default' filepath='include/uapi/sound/asound.h' line='1048' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='576'>
-          <var-decl name='value' type-id='ac5ab669' visibility='default' filepath='include/uapi/sound/asound.h' line='1067' column='1'/>
+          <var-decl name='value' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1067' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='8768'>
           <var-decl name='reserved' type-id='6f10c3ff' visibility='default' filepath='include/uapi/sound/asound.h' line='1068' column='1'/>
@@ -26946,7 +26967,7 @@
           <var-decl name='count' type-id='f0981eeb' visibility='default' filepath='include/net/inet_hashtables.h' line='114' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='' type-id='ac5ab65d' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1'/>
+          <var-decl name='' type-id='ac5ab65e' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1'/>
         </data-member>
       </class-decl>
       <pointer-type-def type-id='df587ad7' size-in-bits='64' id='42bc911b'/>
@@ -28719,7 +28740,7 @@
           <var-decl name='content' type-id='8efea9e5' visibility='default' filepath='include/sound/info.h' line='67' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='256'>
-          <var-decl name='c' type-id='ac5ab66e' visibility='default' filepath='include/sound/info.h' line='71' column='1'/>
+          <var-decl name='c' type-id='ac5ab66f' visibility='default' filepath='include/sound/info.h' line='71' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='384'>
           <var-decl name='parent' type-id='b9608bfc' visibility='default' filepath='include/sound/info.h' line='72' column='1'/>
@@ -30026,7 +30047,7 @@
           <var-decl name='type' type-id='2f162548' visibility='default' filepath='include/uapi/sound/asoc.h' line='253' column='1'/>
         </data-member>
         <data-member access='public' layout-offset-in-bits='64'>
-          <var-decl name='' type-id='ac5ab672' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1'/>
+          <var-decl name='' type-id='ac5ab673' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1'/>
         </data-member>
       </class-decl>
       <array-type-def dimensions='1' type-id='f0981eeb' size-in-bits='160' id='4d5a4f46'>
@@ -39412,7 +39433,7 @@
           <var-decl name='sequence' type-id='91ce1af9' visibility='default' filepath='include/drm/drm_vblank.h' line='54' column='1'/>
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-          <var-decl name='event' type-id='ac5ab5bf' visibility='default' filepath='include/drm/drm_vblank.h' line='78' column='1'/>
+          <var-decl name='event' type-id='ac5ab5c0' visibility='default' filepath='include/drm/drm_vblank.h' line='78' column='1'/>
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@@ -42346,7 +42367,7 @@
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-          <var-decl name='' type-id='ac5ab65f' visibility='default' filepath='include/net/route.h' line='62' column='1'/>
+          <var-decl name='' type-id='ac5ab660' visibility='default' filepath='include/net/route.h' line='62' column='1'/>
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@@ -52963,7 +52984,7 @@
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+          <var-decl name='tlv' type-id='ac5ab668' visibility='default' filepath='include/sound/control.h' line='74' column='1'/>
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@@ -53784,7 +53805,7 @@
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-          <var-decl name='value' type-id='ac5ab668' visibility='default' filepath='include/uapi/sound/asound.h' line='1042' column='1'/>
+          <var-decl name='value' type-id='ac5ab669' visibility='default' filepath='include/uapi/sound/asound.h' line='1042' column='1'/>
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@@ -54287,7 +54308,7 @@
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         </data-member>
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-          <var-decl name='' type-id='ac5ab670' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1'/>
+          <var-decl name='' type-id='ac5ab671' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1'/>
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@@ -60249,7 +60270,7 @@
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-          <var-decl name='tlv' type-id='ac5ab667' visibility='default' filepath='include/sound/control.h' line='55' column='1'/>
+          <var-decl name='tlv' type-id='ac5ab668' visibility='default' filepath='include/sound/control.h' line='55' column='1'/>
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@@ -66530,6 +66551,7 @@
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       <pointer-type-def type-id='7f60130d' size-in-bits='64' id='ab3e2665'/>
+      <pointer-type-def type-id='11b31209' size-in-bits='64' id='ab3e7181'/>
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@@ -67375,7 +67397,18 @@
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+        <data-member access='public'>
+          <var-decl name='cb_list' type-id='72f469ec' visibility='default' filepath='include/linux/dma-fence.h' line='85' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='timestamp' type-id='fbc017ef' visibility='default' filepath='include/linux/dma-fence.h' line='87' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/dma-fence.h' line='89' column='1'/>
+        </data-member>
+      </union-decl>
+      <union-decl name='__anonymous_union__' size-in-bits='56' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='106' column='1' id='ac5ab5bd'>
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@@ -67383,7 +67416,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='104' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='151' column='1' id='ac5ab5be'>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/drm/drm_edid.h' line='172' column='1' id='ac5ab5bf'>
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           <var-decl name='pixel_data' type-id='42c5f701' visibility='default' filepath='include/drm/drm_edid.h' line='173' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='256' is-anonymous='yes' visibility='default' filepath='include/drm/drm_vblank.h' line='58' column='1' id='ac5ab5c0'>
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@@ -67419,22 +67452,11 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/hdmi.h' line='386' column='1' id='ac5ab5c1'>
         <data-member access='public'>
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@@ -68959,7 +68981,15 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/linux/igmp.h' line='77' column='1' id='ac5ab65a'>
+        <data-member access='public'>
+          <var-decl name='next' type-id='26479c18' visibility='default' filepath='include/linux/igmp.h' line='78' column='1'/>
+        </data-member>
+        <data-member access='public'>
+          <var-decl name='next_rcu' type-id='26479c18' visibility='default' filepath='include/linux/igmp.h' line='79' column='1'/>
+        </data-member>
+      </union-decl>
+      <union-decl name='__anonymous_union__' size-in-bits='16' is-anonymous='yes' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='43' column='1' id='ac5ab65b'>
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@@ -68982,7 +69012,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='832' is-anonymous='yes' visibility='default' filepath='include/net/nexthop.h' line='59' column='1' id='ac5ab65c'>
         <data-member access='public'>
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@@ -68993,7 +69023,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/nexthop.h' line='101' column='1' id='ac5ab65d'>
         <data-member access='public'>
           <var-decl name='nh_info' type-id='e55edb2e' visibility='default' filepath='include/net/nexthop.h' line='102' column='1'/>
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@@ -69001,7 +69031,7 @@
           <var-decl name='nh_grp' type-id='c5ff416f' visibility='default' filepath='include/net/nexthop.h' line='103' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/inet_hashtables.h' line='115' column='1' id='ac5ab65e'>
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@@ -69009,7 +69039,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/ip_fib.h' line='89' column='1' id='ac5ab65f'>
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@@ -69017,7 +69047,7 @@
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-      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab65f'>
+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/route.h' line='62' column='1' id='ac5ab660'>
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='464' column='1' id='ac5ab661'>
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@@ -69036,7 +69066,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='160' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1892' column='1' id='ac5ab662'>
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@@ -69056,7 +69086,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='320' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1059' column='1' id='ac5ab663'>
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@@ -69076,7 +69106,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1' id='ac5ab664'>
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+      <union-decl name='__anonymous_union__' size-in-bits='64' is-anonymous='yes' visibility='default' filepath='include/net/cfg80211.h' line='2740' column='1' id='ac5ab665'>
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@@ -69092,7 +69122,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1023' column='1' id='ac5ab669'>
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@@ -69208,24 +69238,24 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1049' column='1' id='ac5ab66a'>
         <data-member access='public'>
-          <var-decl name='integer' type-id='ac5ab66a' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
+          <var-decl name='integer' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1053' column='1'/>
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         <data-member access='public'>
-          <var-decl name='integer64' type-id='ac5ab66b' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
+          <var-decl name='integer64' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1057' column='1'/>
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-          <var-decl name='enumerated' type-id='ac5ab66c' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
+          <var-decl name='enumerated' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1061' column='1'/>
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         <data-member access='public'>
-          <var-decl name='bytes' type-id='ac5ab66d' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
+          <var-decl name='bytes' type-id='ac5ab66e' visibility='default' filepath='include/uapi/sound/asound.h' line='1065' column='1'/>
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+      <union-decl name='__anonymous_union__' size-in-bits='8192' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1050' column='1' id='ac5ab66b'>
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@@ -69233,7 +69263,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1054' column='1' id='ac5ab66c'>
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@@ -69241,7 +69271,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1058' column='1' id='ac5ab66d'>
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@@ -69249,7 +69279,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='4096' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asound.h' line='1062' column='1' id='ac5ab66e'>
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@@ -69257,7 +69287,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='128' is-anonymous='yes' visibility='default' filepath='include/sound/info.h' line='68' column='1' id='ac5ab66f'>
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@@ -69265,7 +69295,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='192' is-anonymous='yes' visibility='default' filepath='include/sound/soc-topology.h' line='69' column='1' id='ac5ab670'>
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@@ -69273,7 +69303,7 @@
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-      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab670'>
+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='222' column='1' id='ac5ab671'>
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@@ -69284,7 +69314,7 @@
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+      <union-decl name='__anonymous_union__' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='236' column='1' id='ac5ab672'>
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@@ -69292,7 +69322,7 @@
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+      <union-decl name='__anonymous_union__' size-in-bits='1024' is-anonymous='yes' visibility='default' filepath='include/uapi/sound/asoc.h' line='254' column='1' id='ac5ab673'>
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@@ -72219,7 +72249,7 @@
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-          <var-decl name='' type-id='ac5ab5c0' visibility='default' filepath='include/linux/hdmi.h' line='386' column='1'/>
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@@ -73606,7 +73636,7 @@
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-          <var-decl name='' type-id='ac5ab65c' visibility='default' filepath='include/net/nexthop.h' line='101' column='1'/>
+          <var-decl name='' type-id='ac5ab65d' visibility='default' filepath='include/net/nexthop.h' line='101' column='1'/>
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@@ -78864,7 +78894,65 @@
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+      <class-decl name='ip_mc_list' size-in-bits='1280' is-struct='yes' visibility='default' filepath='include/linux/igmp.h' line='70' column='1' id='c2a59aaa'>
+        <data-member access='public' layout-offset-in-bits='0'>
+          <var-decl name='interface' type-id='fc6f14a9' visibility='default' filepath='include/linux/igmp.h' line='71' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='64'>
+          <var-decl name='multiaddr' type-id='78a133c2' visibility='default' filepath='include/linux/igmp.h' line='72' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='96'>
+          <var-decl name='sfmode' type-id='f0981eeb' visibility='default' filepath='include/linux/igmp.h' line='73' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='128'>
+          <var-decl name='sources' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='74' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='192'>
+          <var-decl name='tomb' type-id='ab3e7181' visibility='default' filepath='include/linux/igmp.h' line='75' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='256'>
+          <var-decl name='sfcount' type-id='f05e8e77' visibility='default' filepath='include/linux/igmp.h' line='76' column='1'/>
+        </data-member>
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+          <var-decl name='' type-id='ac5ab65a' visibility='default' filepath='include/linux/igmp.h' line='77' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='448'>
+          <var-decl name='next_hash' type-id='26479c18' visibility='default' filepath='include/linux/igmp.h' line='81' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='512'>
+          <var-decl name='timer' type-id='abe41e67' visibility='default' filepath='include/linux/igmp.h' line='82' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='960'>
+          <var-decl name='users' type-id='95e97e5e' visibility='default' filepath='include/linux/igmp.h' line='83' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='992'>
+          <var-decl name='refcnt' type-id='64615833' visibility='default' filepath='include/linux/igmp.h' line='84' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1024'>
+          <var-decl name='lock' type-id='fb4018a0' visibility='default' filepath='include/linux/igmp.h' line='85' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1056'>
+          <var-decl name='tm_running' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='86' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1064'>
+          <var-decl name='reporter' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='87' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1072'>
+          <var-decl name='unsolicit_count' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='88' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1080'>
+          <var-decl name='loaded' type-id='a84c031d' visibility='default' filepath='include/linux/igmp.h' line='89' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1088'>
+          <var-decl name='gsquery' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='90' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1096'>
+          <var-decl name='crcount' type-id='002ac4a6' visibility='default' filepath='include/linux/igmp.h' line='91' column='1'/>
+        </data-member>
+        <data-member access='public' layout-offset-in-bits='1152'>
+          <var-decl name='rcu' type-id='e3d8ce29' visibility='default' filepath='include/linux/igmp.h' line='92' column='1'/>
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@@ -83290,7 +83378,7 @@
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-          <var-decl name='' type-id='ac5ab5c1' visibility='default' filepath='include/linux/dma-fence.h' line='84' column='1'/>
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@@ -84570,7 +84658,7 @@
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-          <var-decl name='param' type-id='ac5ab664' visibility='default' filepath='include/net/cfg80211.h' line='2743' column='1'/>
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@@ -84810,7 +84898,7 @@
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-          <var-decl name='data' type-id='ac5ab5be' visibility='default' filepath='include/drm/drm_edid.h' line='175' column='1'/>
+          <var-decl name='data' type-id='ac5ab5bf' visibility='default' filepath='include/drm/drm_edid.h' line='175' column='1'/>
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@@ -91307,7 +91395,7 @@
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-          <var-decl name='nhc_gw' type-id='ac5ab65e' visibility='default' filepath='include/net/ip_fib.h' line='92' column='1'/>
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@@ -95699,7 +95787,7 @@
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-          <var-decl name='u' type-id='ac5ab65a' visibility='default' filepath='include/net/netfilter/nf_conntrack_tuple.h' line='65' column='1'/>
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@@ -95803,7 +95891,7 @@
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-          <var-decl name='' type-id='ac5ab663' visibility='default' filepath='include/net/mac80211.h' line='1061' column='1'/>
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@@ -96042,7 +96130,7 @@
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-          <var-decl name='u' type-id='ac5ab660' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
+          <var-decl name='u' type-id='ac5ab661' visibility='default' filepath='include/net/mac80211.h' line='468' column='1'/>
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-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='10278' column='1'/>
-        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='10279' column='1'/>
-        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='10280' column='1'/>
-        <parameter type-id='f0981eeb' name='portid' filepath='net/wireless/nl80211.c' line='10281' column='1'/>
-        <parameter type-id='95e97e5e' name='vendor_event_idx' filepath='net/wireless/nl80211.c' line='10282' column='1'/>
-        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='10283' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10283' column='1'/>
+      <function-decl name='__cfg80211_alloc_event_skb' mangled-name='__cfg80211_alloc_event_skb' filepath='net/wireless/nl80211.c' line='10278' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_event_skb'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='10278' column='1'/>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='10279' column='1'/>
+        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='10280' column='1'/>
+        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='10281' column='1'/>
+        <parameter type-id='f0981eeb' name='portid' filepath='net/wireless/nl80211.c' line='10282' column='1'/>
+        <parameter type-id='95e97e5e' name='vendor_event_idx' filepath='net/wireless/nl80211.c' line='10283' column='1'/>
+        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='10284' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10284' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='__cfg80211_alloc_reply_skb' mangled-name='__cfg80211_alloc_reply_skb' filepath='net/wireless/nl80211.c' line='13811' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_reply_skb'>
-        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='13811' column='1'/>
-        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='13812' column='1'/>
-        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='13813' column='1'/>
-        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='13814' column='1'/>
+      <function-decl name='__cfg80211_alloc_reply_skb' mangled-name='__cfg80211_alloc_reply_skb' filepath='net/wireless/nl80211.c' line='13812' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_alloc_reply_skb'>
+        <parameter type-id='666fb412' name='wiphy' filepath='net/wireless/nl80211.c' line='13812' column='1'/>
+        <parameter type-id='187e1e49' name='cmd' filepath='net/wireless/nl80211.c' line='13813' column='1'/>
+        <parameter type-id='320b0ded' name='attr' filepath='net/wireless/nl80211.c' line='13814' column='1'/>
+        <parameter type-id='95e97e5e' name='approxlen' filepath='net/wireless/nl80211.c' line='13815' column='1'/>
         <return type-id='0fbf3cfd'/>
       </function-decl>
-      <function-decl name='__cfg80211_send_event_skb' mangled-name='__cfg80211_send_event_skb' filepath='net/wireless/nl80211.c' line='10310' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_send_event_skb'>
-        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='10310' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10310' column='1'/>
+      <function-decl name='__cfg80211_send_event_skb' mangled-name='__cfg80211_send_event_skb' filepath='net/wireless/nl80211.c' line='10311' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfg80211_send_event_skb'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='10311' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='10311' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='__cfi_slowpath' mangled-name='__cfi_slowpath' filepath='kernel/cfi.c' line='319' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__cfi_slowpath'>
@@ -106507,6 +106595,11 @@
         <parameter is-variadic='yes'/>
         <return type-id='95e97e5e'/>
       </function-decl>
+      <function-decl name='__trace_bputs' mangled-name='__trace_bputs' filepath='kernel/trace/trace.c' line='1064' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__trace_bputs'>
+        <parameter type-id='7359adad' name='ip' filepath='kernel/trace/trace.c' line='1064' column='1'/>
+        <parameter type-id='80f4b756' name='str' filepath='kernel/trace/trace.c' line='1064' column='1'/>
+        <return type-id='95e97e5e'/>
+      </function-decl>
       <function-decl name='__traceiter_android_rvh_arm64_serror_panic' mangled-name='__traceiter_android_rvh_arm64_serror_panic' filepath='include/trace/hooks/traps.h' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='__traceiter_android_rvh_arm64_serror_panic'>
         <parameter type-id='eaa32e2f' name='__data' filepath='include/trace/hooks/traps.h' line='23' column='1'/>
         <parameter type-id='4616a179' name='regs' filepath='include/trace/hooks/traps.h' line='23' column='1'/>
@@ -108800,9 +108893,9 @@
         <parameter type-id='185e765a' name='rate' filepath='net/wireless/util.c' line='1402' column='1'/>
         <return type-id='19c2251e'/>
       </function-decl>
-      <function-decl name='cfg80211_ch_switch_notify' mangled-name='cfg80211_ch_switch_notify' filepath='net/wireless/nl80211.c' line='17125' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ch_switch_notify'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17125' column='1'/>
-        <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='17126' column='1'/>
+      <function-decl name='cfg80211_ch_switch_notify' mangled-name='cfg80211_ch_switch_notify' filepath='net/wireless/nl80211.c' line='17126' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ch_switch_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17126' column='1'/>
+        <parameter type-id='0953fbfe' name='chandef' filepath='net/wireless/nl80211.c' line='17127' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_chandef_create' mangled-name='cfg80211_chandef_create' filepath='net/wireless/chan.c' line='23' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_chandef_create'>
@@ -108817,11 +108910,11 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='791' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_del_sta_sinfo' mangled-name='cfg80211_del_sta_sinfo' filepath='net/wireless/nl80211.c' line='16497' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_del_sta_sinfo'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16497' column='1'/>
-        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16497' column='1'/>
-        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16498' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16498' column='1'/>
+      <function-decl name='cfg80211_del_sta_sinfo' mangled-name='cfg80211_del_sta_sinfo' filepath='net/wireless/nl80211.c' line='16498' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_del_sta_sinfo'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16498' column='1'/>
+        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16498' column='1'/>
+        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16499' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16499' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_disconnected' mangled-name='cfg80211_disconnected' filepath='net/wireless/sme.c' line='1142' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_disconnected'>
@@ -108833,10 +108926,10 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/sme.c' line='1144' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17751' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17751' column='1'/>
-        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17752' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17753' column='1'/>
+      <function-decl name='cfg80211_external_auth_request' mangled-name='cfg80211_external_auth_request' filepath='net/wireless/nl80211.c' line='17752' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_external_auth_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17752' column='1'/>
+        <parameter type-id='2b041d55' name='params' filepath='net/wireless/nl80211.c' line='17753' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17754' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='cfg80211_find_elem_match' mangled-name='cfg80211_find_elem_match' filepath='net/wireless/scan.c' line='1216' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_find_elem_match'>
@@ -108865,11 +108958,11 @@
         <parameter type-id='d2b455cb' name='privacy' filepath='net/wireless/scan.c' line='1417' column='1'/>
         <return type-id='bda81d86'/>
       </function-decl>
-      <function-decl name='cfg80211_gtk_rekey_notify' mangled-name='cfg80211_gtk_rekey_notify' filepath='net/wireless/nl80211.c' line='17016' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_gtk_rekey_notify'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17016' column='1'/>
-        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17016' column='1'/>
-        <parameter type-id='bbaf3419' name='replay_ctr' filepath='net/wireless/nl80211.c' line='17017' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17017' column='1'/>
+      <function-decl name='cfg80211_gtk_rekey_notify' mangled-name='cfg80211_gtk_rekey_notify' filepath='net/wireless/nl80211.c' line='17017' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_gtk_rekey_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17017' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17017' column='1'/>
+        <parameter type-id='bbaf3419' name='replay_ctr' filepath='net/wireless/nl80211.c' line='17018' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17018' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_ibss_joined' mangled-name='cfg80211_ibss_joined' filepath='net/wireless/ibss.c' line='59' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ibss_joined'>
@@ -108900,13 +108993,13 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/scan.c' line='2428' column='1'/>
         <return type-id='bda81d86'/>
       </function-decl>
-      <function-decl name='cfg80211_mgmt_tx_status' mangled-name='cfg80211_mgmt_tx_status' filepath='net/wireless/nl80211.c' line='16737' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_mgmt_tx_status'>
-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16737' column='1'/>
-        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16737' column='1'/>
-        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
-        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
-        <parameter type-id='b50a4934' name='ack' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
+      <function-decl name='cfg80211_mgmt_tx_status' mangled-name='cfg80211_mgmt_tx_status' filepath='net/wireless/nl80211.c' line='16738' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_mgmt_tx_status'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16738' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='16739' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='16739' column='1'/>
+        <parameter type-id='b50a4934' name='ack' filepath='net/wireless/nl80211.c' line='16739' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16739' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_michael_mic_failure' mangled-name='cfg80211_michael_mic_failure' filepath='net/wireless/mlme.c' line='202' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_michael_mic_failure'>
@@ -108918,19 +109011,19 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/mlme.c' line='204' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_new_sta' mangled-name='cfg80211_new_sta' filepath='net/wireless/nl80211.c' line='16473' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_new_sta'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16473' column='1'/>
-        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16473' column='1'/>
-        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16474' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16474' column='1'/>
+      <function-decl name='cfg80211_new_sta' mangled-name='cfg80211_new_sta' filepath='net/wireless/nl80211.c' line='16474' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_new_sta'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='16474' column='1'/>
+        <parameter type-id='bbaf3419' name='mac_addr' filepath='net/wireless/nl80211.c' line='16474' column='1'/>
+        <parameter type-id='7af1dc96' name='sinfo' filepath='net/wireless/nl80211.c' line='16475' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16475' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_pmksa_candidate_notify' mangled-name='cfg80211_pmksa_candidate_notify' filepath='net/wireless/nl80211.c' line='17073' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_pmksa_candidate_notify'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17073' column='1'/>
-        <parameter type-id='95e97e5e' name='index' filepath='net/wireless/nl80211.c' line='17073' column='1'/>
-        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
-        <parameter type-id='b50a4934' name='preauth' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
+      <function-decl name='cfg80211_pmksa_candidate_notify' mangled-name='cfg80211_pmksa_candidate_notify' filepath='net/wireless/nl80211.c' line='17074' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_pmksa_candidate_notify'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
+        <parameter type-id='95e97e5e' name='index' filepath='net/wireless/nl80211.c' line='17074' column='1'/>
+        <parameter type-id='bbaf3419' name='bssid' filepath='net/wireless/nl80211.c' line='17075' column='1'/>
+        <parameter type-id='b50a4934' name='preauth' filepath='net/wireless/nl80211.c' line='17075' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17075' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_port_authorized' mangled-name='cfg80211_port_authorized' filepath='net/wireless/sme.c' line='1048' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_port_authorized'>
@@ -108944,19 +109037,19 @@
         <parameter type-id='bda81d86' name='pub' filepath='net/wireless/scan.c' line='2491' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='16433' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16433' column='1'/>
-        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16433' column='1'/>
-        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16434' column='1'/>
-        <parameter type-id='f0981eeb' name='duration' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
+      <function-decl name='cfg80211_ready_on_channel' mangled-name='cfg80211_ready_on_channel' filepath='net/wireless/nl80211.c' line='16434' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_ready_on_channel'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16434' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16434' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16435' column='1'/>
+        <parameter type-id='f0981eeb' name='duration' filepath='net/wireless/nl80211.c' line='16436' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16436' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_remain_on_channel_expired' mangled-name='cfg80211_remain_on_channel_expired' filepath='net/wireless/nl80211.c' line='16447' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_remain_on_channel_expired'>
-        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16447' column='1'/>
-        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16447' column='1'/>
-        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16448' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16449' column='1'/>
+      <function-decl name='cfg80211_remain_on_channel_expired' mangled-name='cfg80211_remain_on_channel_expired' filepath='net/wireless/nl80211.c' line='16448' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_remain_on_channel_expired'>
+        <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/nl80211.c' line='16448' column='1'/>
+        <parameter type-id='91ce1af9' name='cookie' filepath='net/wireless/nl80211.c' line='16448' column='1'/>
+        <parameter type-id='ec00acfb' name='chan' filepath='net/wireless/nl80211.c' line='16449' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='16450' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_roamed' mangled-name='cfg80211_roamed' filepath='net/wireless/sme.c' line='958' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_roamed'>
@@ -108974,10 +109067,10 @@
         <parameter type-id='19c2251e' name='flags' filepath='net/wireless/mlme.c' line='759' column='1'/>
         <return type-id='b50a4934'/>
       </function-decl>
-      <function-decl name='cfg80211_rx_unprot_mlme_mgmt' mangled-name='cfg80211_rx_unprot_mlme_mgmt' filepath='net/wireless/nl80211.c' line='15961' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_unprot_mlme_mgmt'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15961' column='1'/>
-        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='15961' column='1'/>
-        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='15962' column='1'/>
+      <function-decl name='cfg80211_rx_unprot_mlme_mgmt' mangled-name='cfg80211_rx_unprot_mlme_mgmt' filepath='net/wireless/nl80211.c' line='15962' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_rx_unprot_mlme_mgmt'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='15962' column='1'/>
+        <parameter type-id='bbaf3419' name='buf' filepath='net/wireless/nl80211.c' line='15962' column='1'/>
+        <parameter type-id='b59d7dce' name='len' filepath='net/wireless/nl80211.c' line='15963' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_scan_done' mangled-name='cfg80211_scan_done' filepath='net/wireless/scan.c' line='1000' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_scan_done'>
@@ -109006,12 +109099,12 @@
         <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/core.c' line='1233' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17533' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
-        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17533' column='1'/>
-        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17533' column='1'/>
-        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
-        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17535' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17535' column='1'/>
+      <function-decl name='cfg80211_tdls_oper_request' mangled-name='cfg80211_tdls_oper_request' filepath='net/wireless/nl80211.c' line='17534' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_tdls_oper_request'>
+        <parameter type-id='68a2d05b' name='dev' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
+        <parameter type-id='bbaf3419' name='peer' filepath='net/wireless/nl80211.c' line='17534' column='1'/>
+        <parameter type-id='ee1b00fc' name='oper' filepath='net/wireless/nl80211.c' line='17535' column='1'/>
+        <parameter type-id='1dc6a898' name='reason_code' filepath='net/wireless/nl80211.c' line='17536' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17536' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
       <function-decl name='cfg80211_unlink_bss' mangled-name='cfg80211_unlink_bss' filepath='net/wireless/scan.c' line='2507' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_unlink_bss'>
@@ -109023,14 +109116,14 @@
         <parameter type-id='63c7e8e1' name='wdev' filepath='net/wireless/core.c' line='1141' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17792' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
-        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17792' column='1'/>
-        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17793' column='1'/>
-        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17794' column='1'/>
+      <function-decl name='cfg80211_update_owe_info_event' mangled-name='cfg80211_update_owe_info_event' filepath='net/wireless/nl80211.c' line='17793' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_update_owe_info_event'>
+        <parameter type-id='68a2d05b' name='netdev' filepath='net/wireless/nl80211.c' line='17793' column='1'/>
+        <parameter type-id='37104a66' name='owe_info' filepath='net/wireless/nl80211.c' line='17794' column='1'/>
+        <parameter type-id='3eb7c31c' name='gfp' filepath='net/wireless/nl80211.c' line='17795' column='1'/>
         <return type-id='48b5725f'/>
       </function-decl>
-      <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='13828' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
-        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='13828' column='1'/>
+      <function-decl name='cfg80211_vendor_cmd_reply' mangled-name='cfg80211_vendor_cmd_reply' filepath='net/wireless/nl80211.c' line='13829' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='cfg80211_vendor_cmd_reply'>
+        <parameter type-id='0fbf3cfd' name='skb' filepath='net/wireless/nl80211.c' line='13829' column='1'/>
         <return type-id='95e97e5e'/>
       </function-decl>
       <function-decl name='class_destroy' mangled-name='class_destroy' filepath='drivers/base/class.c' line='261' column='1' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='class_destroy'>
-- 
GitLab


From 32169780e810e131cbe269520003fe41111c4663 Mon Sep 17 00:00:00 2001
From: Paul Lawrence <paullawrence@google.com>
Date: Thu, 21 Apr 2022 08:16:22 -0700
Subject: [PATCH 4776/4878] ANDROID: fuse-bpf: Fix misuse of args.out_args

Test: fuse_test
Bug: 202785178
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Change-Id: I332d196329bba257a577d3ddc140136aa03bfdf1
---
 fs/fuse/backing.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c
index 2959a6944c1a0..b68f4f5349743 100644
--- a/fs/fuse/backing.c
+++ b/fs/fuse/backing.c
@@ -2439,7 +2439,7 @@ ssize_t fuse_bpf_simple_request(struct fuse_mount *fm, struct fuse_bpf_args *bpf
 	};
 	if (args.force)
 		bpf_args->flags |= FUSE_BPF_FORCE;
-	if (args.out_args)
+	if (args.out_argvar)
 		bpf_args->flags |= FUSE_BPF_OUT_ARGVAR;
 	for (i = 0; i < args.in_numargs; ++i)
 		bpf_args->in_args[i] = (struct fuse_bpf_in_arg) {
-- 
GitLab


From e7c680add62e0733d15539edb9e7d9f09a2d507a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <maz@kernel.org>
Date: Wed, 13 Apr 2022 11:57:10 +0100
Subject: [PATCH 4777/4878] ANDROID: KVM: arm64: Prevent HVC calls outside of
 the core kernel text

Modules can easily wreak havoc in the hypervisor by calling into
it randomly, making it very hard to understand what is going on.

Given that limiting hypercalls to the core kernel is actually
pretty easy (a simple comparaison with _text and _etext), let's
implement that.

This is made extra-complicated due to KASLR and the disjointed
VA spaces (you can't just refer to _text, as this results in a
relative reference...).

Bug: 210011561
Signed-off-by: Marc Zyngier <maz@kernel.org>
Change-Id: I2f21871d7fe0fb22fd3660dbc1317ec8968d5b61
Signed-off-by: Sebastian Ene <sebastianene@google.com>
---
 arch/arm64/include/asm/kvm_mmu.h   |  4 ++++
 arch/arm64/kernel/image-vars.h     |  2 ++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c | 33 ++++++++++++++++++++++++++++++
 arch/arm64/kvm/va_layout.c         | 12 +++++++++++
 4 files changed, 51 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 7a8dc3f343ec8..b3b03f1549ebf 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -118,6 +118,10 @@ alternative_cb_end
 
 void kvm_update_va_mask(struct alt_instr *alt,
 			__le32 *origptr, __le32 *updptr, int nr_inst);
+void kvm_get__text(struct alt_instr *alt,
+		   __le32 *origptr, __le32 *updptr, int nr_inst);
+void kvm_get__etext(struct alt_instr *alt,
+		    __le32 *origptr, __le32 *updptr, int nr_inst);
 void kvm_compute_layout(void);
 void kvm_apply_hyp_relocations(void);
 
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index 022f8fe07809c..8f674fbab573d 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -65,6 +65,8 @@ __efistub__ctype		= _ctype;
 KVM_NVHE_ALIAS(kvm_patch_vector_branch);
 KVM_NVHE_ALIAS(kvm_update_va_mask);
 KVM_NVHE_ALIAS(kvm_get_kimage_voffset);
+KVM_NVHE_ALIAS(kvm_get__text);
+KVM_NVHE_ALIAS(kvm_get__etext);
 KVM_NVHE_ALIAS(kvm_compute_final_ctr_el0);
 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_iter);
 KVM_NVHE_ALIAS(spectre_bhb_patch_loop_mitigation_enable);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 49345929af0d2..14f9da9f87b90 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -1089,12 +1089,45 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_iommu_finalize),
 };
 
+static inline u64 kernel__text_addr(void)
+{
+	u64 val;
+
+	asm volatile(ALTERNATIVE_CB("movz	%0, #0\n"
+				    "movk	%0, #0, lsl #16\n"
+				    "movk	%0, #0, lsl #32\n"
+				    "movk	%0, #0, lsl #48\n",
+				    kvm_get__text)
+		     : "=r" (val));
+
+	return val;
+}
+
+static inline u64 kernel__etext_addr(void)
+{
+	u64 val;
+
+	asm volatile(ALTERNATIVE_CB("movz	%0, #0\n"
+				    "movk	%0, #0, lsl #16\n"
+				    "movk	%0, #0, lsl #32\n"
+				    "movk	%0, #0, lsl #48\n",
+				    kvm_get__etext)
+		     : "=r" (val));
+
+	return val;
+}
+
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
 {
 	DECLARE_REG(unsigned long, id, host_ctxt, 0);
+	u64 elr = read_sysreg_el2(SYS_ELR) - 4;
 	unsigned long hcall_min = 0;
 	hcall_t hfn;
 
+	/* Check for the provenance of the HC */
+	if (unlikely(elr < kernel__text_addr() || elr >= kernel__etext_addr()))
+		goto inval;
+
 	/*
 	 * If pKVM has been initialised then reject any calls to the
 	 * early "privileged" hypercalls. Note that we cannot reject
diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c
index acdb7b3cc97d6..f0b678d24e25d 100644
--- a/arch/arm64/kvm/va_layout.c
+++ b/arch/arm64/kvm/va_layout.c
@@ -295,3 +295,15 @@ void kvm_compute_final_ctr_el0(struct alt_instr *alt,
 	generate_mov_q(read_sanitised_ftr_reg(SYS_CTR_EL0),
 		       origptr, updptr, nr_inst);
 }
+
+void kvm_get__text(struct alt_instr *alt,
+		   __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+	generate_mov_q((u64)_text, origptr, updptr, nr_inst);
+}
+
+void kvm_get__etext(struct alt_instr *alt,
+		   __le32 *origptr, __le32 *updptr, int nr_inst)
+{
+	generate_mov_q((u64)_etext, origptr, updptr, nr_inst);
+}
-- 
GitLab


From 88e4dbaf592d8d9081837c9fef51335d0589354a Mon Sep 17 00:00:00 2001
From: Kalesh Singh <kaleshsingh@google.com>
Date: Fri, 22 Apr 2022 08:47:55 -0700
Subject: [PATCH 4778/4878] ANDROID: Make MGLRU aware of speculative faults

Bug: 228525049
Bug: 227651406
Change-Id: Ib3d45f74c5c23cbb1af7aaf95c90826baf406c7a
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
---
 mm/memory.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mm/memory.c b/mm/memory.c
index a201cf3a558dd..6b688988a4902 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4892,6 +4892,10 @@ static inline void mm_account_fault(struct pt_regs *regs,
 	else
 		perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
 }
+
+static void lru_gen_enter_fault(struct vm_area_struct *vma);
+static void lru_gen_exit_fault(void);
+
 #ifdef CONFIG_SPECULATIVE_PAGE_FAULT
 
 #ifndef CONFIG_ARCH_HAS_PTE_SPECIAL
@@ -5083,7 +5087,9 @@ static vm_fault_t ___handle_speculative_fault(struct mm_struct *mm,
 	}
 
 	mem_cgroup_enter_user_fault();
+	lru_gen_enter_fault(vmf.vma);
 	ret = handle_pte_fault(&vmf);
+	lru_gen_exit_fault();
 	mem_cgroup_exit_user_fault();
 
 	if (ret != VM_FAULT_RETRY) {
-- 
GitLab


From d1e43a5be8c28d80ab737d086210b39e1d64ff10 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:28 -0700
Subject: [PATCH 4779/4878] UPSTREAM: mm: introduce Data Access MONitor (DAMON)

Patch series "Introduce Data Access MONitor (DAMON)", v34.

Introduction
============

DAMON is a data access monitoring framework for the Linux kernel.  The
core mechanisms of DAMON called 'region based sampling' and 'adaptive
regions adjustment' (refer to 'mechanisms.rst' in the 11th patch of this
patchset for the detail) make it

- accurate (The monitored information is useful for DRAM level memory
  management.  It might not appropriate for Cache-level accuracy,
  though.),

- light-weight (The monitoring overhead is low enough to be applied
  online while making no impact on the performance of the target
  workloads.), and

- scalable (the upper-bound of the instrumentation overhead is
  controllable regardless of the size of target workloads.).

Using this framework, therefore, several memory management mechanisms such
as reclamation and THP can be optimized to aware real data access
patterns.  Experimental access pattern aware memory management
optimization works that incurring high instrumentation overhead will be
able to have another try.

Though DAMON is for kernel subsystems, it can be easily exposed to the
user space by writing a DAMON-wrapper kernel subsystem.  Then, user space
users who have some special workloads will be able to write personalized
tools or applications for deeper understanding and specialized
optimizations of their systems.

DAMON is also merged in two public Amazon Linux kernel trees that based on
v5.4.y[1] and v5.10.y[2].

[1] https://github.com/amazonlinux/linux/tree/amazon-5.4.y/master/mm/damon
[2] https://github.com/amazonlinux/linux/tree/amazon-5.10.y/master/mm/damon

The userspace tool[1] is available, released under GPLv2, and actively
being maintained.  I am also planning to implement another basic user
interface in perf[2].  Also, the basic test suite for DAMON is available
under GPLv2[3].

[1] https://github.com/awslabs/damo
[2] https://lore.kernel.org/linux-mm/20210107120729.22328-1-sjpark@amazon.com/
[3] https://github.com/awslabs/damon-tests

Long-term Plan
--------------

DAMON is a part of a project called Data Access-aware Operating System
(DAOS).  As the name implies, I want to improve the performance and
efficiency of systems using fine-grained data access patterns.  The
optimizations are for both kernel and user spaces.  I will therefore
modify or create kernel subsystems, export some of those to user space and
implement user space library / tools.  Below shows the layers and
components for the project.

    ---------------------------------------------------------------------------
    Primitives:     PTE Accessed bit, PG_idle, rmap, (Intel CMT), ...
    Framework:      DAMON
    Features:       DAMOS, virtual addr, physical addr, ...
    Applications:   DAMON-debugfs, (DARC), ...
    ^^^^^^^^^^^^^^^^^^^^^^^    KERNEL SPACE    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    Raw Interface:  debugfs, (sysfs), (damonfs), tracepoints, (sys_damon), ...

    vvvvvvvvvvvvvvvvvvvvvvv    USER SPACE      vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
    Library:        (libdamon), ...
    Tools:          DAMO, (perf), ...
    ---------------------------------------------------------------------------

The components in parentheses or marked as '...' are not implemented yet
but in the future plan.  IOW, those are the TODO tasks of DAOS project.
For more detail, please refer to the plans:
https://lore.kernel.org/linux-mm/20201202082731.24828-1-sjpark@amazon.com/

Evaluations
===========

We evaluated DAMON's overhead, monitoring quality and usefulness using 24
realistic workloads on my QEMU/KVM based virtual machine running a kernel
that v24 DAMON patchset is applied.

DAMON is lightweight.  It increases system memory usage by 0.39% and slows
target workloads down by 1.16%.

DAMON is accurate and useful for memory management optimizations.  An
experimental DAMON-based operation scheme for THP, namely 'ethp', removes
76.15% of THP memory overheads while preserving 51.25% of THP speedup.
Another experimental DAMON-based 'proactive reclamation' implementation,
'prcl', reduces 93.38% of residential sets and 23.63% of system memory
footprint while incurring only 1.22% runtime overhead in the best case
(parsec3/freqmine).

NOTE that the experimental THP optimization and proactive reclamation are
not for production but only for proof of concepts.

Please refer to the official document[1] or "Documentation/admin-guide/mm:
Add a document for DAMON" patch in this patchset for detailed evaluation
setup and results.

[1] https://damonitor.github.io/doc/html/latest-damon/admin-guide/mm/damon/eval.html

Real-world User Story
=====================

In summary, DAMON has used on production systems and proved its usefulness.

DAMON as a profiler
-------------------

We analyzed characteristics of a large scale production systems of our
customers using DAMON.  The systems utilize 70GB DRAM and 36 CPUs.  From
this, we were able to find interesting things below.

There were obviously different access pattern under idle workload and
active workload.  Under the idle workload, it accessed large memory
regions with low frequency, while the active workload accessed small
memory regions with high freuqnecy.

DAMON found a 7GB memory region that showing obviously high access
frequency under the active workload.  We believe this is the
performance-effective working set and need to be protected.

There was a 4KB memory region that showing highest access frequency under
not only active but also idle workloads.  We think this must be a hottest
code section like thing that should never be paged out.

For this analysis, DAMON used only 0.3-1% of single CPU time.  Because we
used recording-based analysis, it consumed about 3-12 MB of disk space per
20 minutes.  This is only small amount of disk space, but we can further
reduce the disk usage by using non-recording-based DAMON features.  I'd
like to argue that only DAMON can do such detailed analysis (finding 4KB
highest region in 70GB memory) with the light overhead.

DAMON as a system optimization tool
-----------------------------------

We also found below potential performance problems on the systems and made
DAMON-based solutions.

The system doesn't want to make the workload suffer from the page
reclamation and thus it utilizes enough DRAM but no swap device.  However,
we found the system is actively reclaiming file-backed pages, because the
system has intensive file IO.  The file IO turned out to be not
performance critical for the workload, but the customer wanted to ensure
performance critical file-backed pages like code section to not mistakenly
be evicted.

Using direct IO should or `mlock()` would be a straightforward solution,
but modifying the user space code is not easy for the customer.
Alternatively, we could use DAMON-based operation scheme[1].  By using it,
we can ask DAMON to track access frequency of each region and make
'process_madvise(MADV_WILLNEED)[2]' call for regions having specific size
and access frequency for a time interval.

We also found the system is having high number of TLB misses.  We tried
'always' THP enabled policy and it greatly reduced TLB misses, but the
page reclamation also been more frequent due to the THP internal
fragmentation caused memory bloat.  We could try another DAMON-based
operation scheme that applies 'MADV_HUGEPAGE' to memory regions having
>=2MB size and high access frequency, while applying 'MADV_NOHUGEPAGE' to
regions having <2MB size and low access frequency.

We do not own the systems so we only reported the analysis results and
possible optimization solutions to the customers.  The customers satisfied
about the analysis results and promised to try the optimization guides.

[1] https://lore.kernel.org/linux-mm/20201006123931.5847-1-sjpark@amazon.com/
[2] https://lore.kernel.org/linux-api/20200622192900.22757-4-minchan@kernel.org/

Comparison with Idle Page Tracking
==================================

Idle Page Tracking allows users to set and read idleness of pages using a
bitmap file which represents each page with each bit of the file.  One
recommended usage of it is working set size detection.  Users can do that
by

    1. find PFN of each page for workloads in interest,
    2. set all the pages as idle by doing writes to the bitmap file,
    3. wait until the workload accesses its working set, and
    4. read the idleness of the pages again and count pages became not idle.

NOTE: While Idle Page Tracking is for user space users, DAMON is primarily
designed for kernel subsystems though it can easily exposed to the user
space.  Hence, this section only assumes such user space use of DAMON.

For what use cases Idle Page Tracking would be better?
------------------------------------------------------

1. Flexible usecases other than hotness monitoring.

Because Idle Page Tracking allows users to control the primitive (Page
idleness) by themselves, Idle Page Tracking users can do anything they
want.  Meanwhile, DAMON is primarily designed to monitor the hotness of
each memory region.  For this, DAMON asks users to provide sampling
interval and aggregation interval.  For the reason, there could be some
use case that using Idle Page Tracking is simpler.

2. Physical memory monitoring.

Idle Page Tracking receives PFN range as input, so natively supports
physical memory monitoring.

DAMON is designed to be extensible for multiple address spaces and use
cases by implementing and using primitives for the given use case.
Therefore, by theory, DAMON has no limitation in the type of target
address space as long as primitives for the given address space exists.
However, the default primitives introduced by this patchset supports only
virtual address spaces.

Therefore, for physical memory monitoring, you should implement your own
primitives and use it, or simply use Idle Page Tracking.

Nonetheless, RFC patchsets[1] for the physical memory address space
primitives is already available.  It also supports user memory same to
Idle Page Tracking.

[1] https://lore.kernel.org/linux-mm/20200831104730.28970-1-sjpark@amazon.com/

For what use cases DAMON is better?
-----------------------------------

1. Hotness Monitoring.

Idle Page Tracking let users know only if a page frame is accessed or not.
For hotness check, the user should write more code and use more memory.
DAMON do that by itself.

2. Low Monitoring Overhead

DAMON receives user's monitoring request with one step and then provide
the results.  So, roughly speaking, DAMON require only O(1) user/kernel
context switches.

In case of Idle Page Tracking, however, because the interface receives
contiguous page frames, the number of user/kernel context switches
increases as the monitoring target becomes complex and huge.  As a result,
the context switch overhead could be not negligible.

Moreover, DAMON is born to handle with the monitoring overhead.  Because
the core mechanism is pure logical, Idle Page Tracking users might be able
to implement the mechanism on their own, but it would be time consuming
and the user/kernel context switching will still more frequent than that
of DAMON.  Also, the kernel subsystems cannot use the logic in this case.

3. Page granularity working set size detection.

Until v22 of this patchset, this was categorized as the thing Idle Page
Tracking could do better, because DAMON basically maintains additional
metadata for each of the monitoring target regions.  So, in the page
granularity working set size detection use case, DAMON would incur (number
of monitoring target pages * size of metadata) memory overhead.  Size of
the single metadata item is about 54 bytes, so assuming 4KB pages, about
1.3% of monitoring target pages will be additionally used.

All essential metadata for Idle Page Tracking are embedded in 'struct
page' and page table entries.  Therefore, in this use case, only one
counter variable for working set size accounting is required if Idle Page
Tracking is used.

There are more details to consider, but roughly speaking, this is true in
most cases.

However, the situation changed from v23.  Now DAMON supports arbitrary
types of monitoring targets, which don't use the metadata.  Using that,
DAMON can do the working set size detection with no additional space
overhead but less user-kernel context switch.  A first draft for the
implementation of monitoring primitives for this usage is available in a
DAMON development tree[1].  An RFC patchset for it based on this patchset
will also be available soon.

Since v24, the arbitrary type support is dropped from this patchset
because this patchset doesn't introduce real use of the type.  You can
still get it from the DAMON development tree[2], though.

[1] https://github.com/sjp38/linux/tree/damon/pgidle_hack
[2] https://github.com/sjp38/linux/tree/damon/master

4. More future usecases

While Idle Page Tracking has tight coupling with base primitives (PG_Idle
and page table Accessed bits), DAMON is designed to be extensible for many
use cases and address spaces.  If you need some special address type or
want to use special h/w access check primitives, you can write your own
primitives for that and configure DAMON to use those.  Therefore, if your
use case could be changed a lot in future, using DAMON could be better.

Can I use both Idle Page Tracking and DAMON?
--------------------------------------------

Yes, though using them concurrently for overlapping memory regions could
result in interference to each other.  Nevertheless, such use case would
be rare or makes no sense at all.  Even in the case, the noise would bot
be really significant.  So, you can choose whatever you want depending on
the characteristics of your use cases.

More Information
================

We prepared a showcase web site[1] that you can get more information.
There are

- the official documentations[2],
- the heatmap format dynamic access pattern of various realistic workloads for
  heap area[3], mmap()-ed area[4], and stack[5] area,
- the dynamic working set size distribution[6] and chronological working set
  size changes[7], and
- the latest performance test results[8].

[1] https://damonitor.github.io/_index
[2] https://damonitor.github.io/doc/html/latest-damon
[3] https://damonitor.github.io/test/result/visual/latest/rec.heatmap.0.png.html
[4] https://damonitor.github.io/test/result/visual/latest/rec.heatmap.1.png.html
[5] https://damonitor.github.io/test/result/visual/latest/rec.heatmap.2.png.html
[6] https://damonitor.github.io/test/result/visual/latest/rec.wss_sz.png.html
[7] https://damonitor.github.io/test/result/visual/latest/rec.wss_time.png.html
[8] https://damonitor.github.io/test/result/perf/latest/html/index.html

Baseline and Complete Git Trees
===============================

The patches are based on the latest -mm tree, specifically
v5.14-rc1-mmots-2021-07-15-18-47 of https://github.com/hnaz/linux-mm.  You can
also clone the complete git tree:

    $ git clone git://github.com/sjp38/linux -b damon/patches/v34

The web is also available:
https://github.com/sjp38/linux/releases/tag/damon/patches/v34

Development Trees
-----------------

There are a couple of trees for entire DAMON patchset series and features
for future release.

- For latest release: https://github.com/sjp38/linux/tree/damon/master
- For next release: https://github.com/sjp38/linux/tree/damon/next

Long-term Support Trees
-----------------------

For people who want to test DAMON but using LTS kernels, there are another
couple of trees based on two latest LTS kernels respectively and
containing the 'damon/master' backports.

- For v5.4.y: https://github.com/sjp38/linux/tree/damon/for-v5.4.y
- For v5.10.y: https://github.com/sjp38/linux/tree/damon/for-v5.10.y

Amazon Linux Kernel Trees
-------------------------

DAMON is also merged in two public Amazon Linux kernel trees that based on
v5.4.y[1] and v5.10.y[2].

[1] https://github.com/amazonlinux/linux/tree/amazon-5.4.y/master/mm/damon
[2] https://github.com/amazonlinux/linux/tree/amazon-5.10.y/master/mm/damon

Git Tree for Diff of Patches
============================

For easy review of diff between different versions of each patch, I
prepared a git tree containing all versions of the DAMON patchset series:
https://github.com/sjp38/damon-patches

You can clone it and use 'diff' for easy review of changes between
different versions of the patchset.  For example:

    $ git clone https://github.com/sjp38/damon-patches && cd damon-patches
    $ diff -u damon/v33 damon/v34

Sequence Of Patches
===================

First three patches implement the core logics of DAMON.  The 1st patch
introduces basic sampling based hotness monitoring for arbitrary types of
targets.  Following two patches implement the core mechanisms for control
of overhead and accuracy, namely regions based sampling (patch 2) and
adaptive regions adjustment (patch 3).

Now the essential parts of DAMON is complete, but it cannot work unless
someone provides monitoring primitives for a specific use case.  The
following two patches make it just work for virtual address spaces
monitoring.  The 4th patch makes 'PG_idle' can be used by DAMON and the
5th patch implements the virtual memory address space specific monitoring
primitives using page table Accessed bits and the 'PG_idle' page flag.

Now DAMON just works for virtual address space monitoring via the kernel
space api.  To let the user space users can use DAMON, following four
patches add interfaces for them.  The 6th patch adds a tracepoint for
monitoring results.  The 7th patch implements a DAMON application kernel
module, namely damon-dbgfs, that simply wraps DAMON and exposes DAMON
interface to the user space via the debugfs interface.  The 8th patch
further exports pid of monitoring thread (kdamond) to user space for
easier cpu usage accounting, and the 9th patch makes the debugfs interface
to support multiple contexts.

Three patches for maintainability follows.  The 10th patch adds
documentations for both the user space and the kernel space.  The 11th
patch provides unit tests (based on the kunit) while the 12th patch adds
user space tests (based on the kselftest).

Finally, the last patch (13th) updates the MAINTAINERS file.

This patch (of 13):

DAMON is a data access monitoring framework for the Linux kernel.  The
core mechanisms of DAMON make it

 - accurate (the monitoring output is useful enough for DRAM level
   performance-centric memory management; It might be inappropriate for
   CPU cache levels, though),
 - light-weight (the monitoring overhead is normally low enough to be
   applied online), and
 - scalable (the upper-bound of the overhead is in constant range
   regardless of the size of target workloads).

Using this framework, hence, we can easily write efficient kernel space
data access monitoring applications.  For example, the kernel's memory
management mechanisms can make advanced decisions using this.
Experimental data access aware optimization works that incurring high
access monitoring overhead could again be implemented on top of this.

Due to its simple and flexible interface, providing user space interface
would be also easy.  Then, user space users who have some special
workloads can write personalized applications for better understanding and
optimizations of their workloads and systems.

===

Nevertheless, this commit is defining and implementing only basic access
check part without the overhead-accuracy handling core logic.  The basic
access check is as below.

The output of DAMON says what memory regions are how frequently accessed
for a given duration.  The resolution of the access frequency is
controlled by setting ``sampling interval`` and ``aggregation interval``.
In detail, DAMON checks access to each page per ``sampling interval`` and
aggregates the results.  In other words, counts the number of the accesses
to each region.  After each ``aggregation interval`` passes, DAMON calls
callback functions that previously registered by users so that users can
read the aggregated results and then clears the results.  This can be
described in below simple pseudo-code::

    init()
    while monitoring_on:
        for page in monitoring_target:
            if accessed(page):
                nr_accesses[page] += 1
        if time() % aggregation_interval == 0:
            for callback in user_registered_callbacks:
                callback(monitoring_target, nr_accesses)
            for page in monitoring_target:
                nr_accesses[page] = 0
        if time() % update_interval == 0:
            update()
        sleep(sampling interval)

The target regions constructed at the beginning of the monitoring and
updated after each ``regions_update_interval``, because the target regions
could be dynamically changed (e.g., mmap() or memory hotplug).  The
monitoring overhead of this mechanism will arbitrarily increase as the
size of the target workload grows.

The basic monitoring primitives for actual access check and dynamic target
regions construction aren't in the core part of DAMON.  Instead, it allows
users to implement their own primitives that are optimized for their use
case and configure DAMON to use those.  In other words, users cannot use
current version of DAMON without some additional works.

Following commits will implement the core mechanisms for the
overhead-accuracy control and default primitives implementations.

Link: https://lkml.kernel.org/r/20210716081449.22187-1-sj38.park@gmail.com
Link: https://lkml.kernel.org/r/20210716081449.22187-2-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Leonard Foerster <foersleo@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Marco Elver <elver@google.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Joe Perches <joe@perches.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 2224d8485492e499ca2e5d25407f8502cc06f149)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I578b47551306e4c416e7b97c57335f810783615c
---
 include/linux/damon.h | 167 ++++++++++++++++++++++
 mm/Kconfig            |   2 +
 mm/Makefile           |   1 +
 mm/damon/Kconfig      |  15 ++
 mm/damon/Makefile     |   3 +
 mm/damon/core.c       | 320 ++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 508 insertions(+)
 create mode 100644 include/linux/damon.h
 create mode 100644 mm/damon/Kconfig
 create mode 100644 mm/damon/Makefile
 create mode 100644 mm/damon/core.c

diff --git a/include/linux/damon.h b/include/linux/damon.h
new file mode 100644
index 0000000000000..2f652602b1eaa
--- /dev/null
+++ b/include/linux/damon.h
@@ -0,0 +1,167 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * DAMON api
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#ifndef _DAMON_H_
+#define _DAMON_H_
+
+#include <linux/mutex.h>
+#include <linux/time64.h>
+#include <linux/types.h>
+
+struct damon_ctx;
+
+/**
+ * struct damon_primitive	Monitoring primitives for given use cases.
+ *
+ * @init:			Initialize primitive-internal data structures.
+ * @update:			Update primitive-internal data structures.
+ * @prepare_access_checks:	Prepare next access check of target regions.
+ * @check_accesses:		Check the accesses to target regions.
+ * @reset_aggregated:		Reset aggregated accesses monitoring results.
+ * @target_valid:		Determine if the target is valid.
+ * @cleanup:			Clean up the context.
+ *
+ * DAMON can be extended for various address spaces and usages.  For this,
+ * users should register the low level primitives for their target address
+ * space and usecase via the &damon_ctx.primitive.  Then, the monitoring thread
+ * (&damon_ctx.kdamond) calls @init and @prepare_access_checks before starting
+ * the monitoring, @update after each &damon_ctx.primitive_update_interval, and
+ * @check_accesses, @target_valid and @prepare_access_checks after each
+ * &damon_ctx.sample_interval.  Finally, @reset_aggregated is called after each
+ * &damon_ctx.aggr_interval.
+ *
+ * @init should initialize primitive-internal data structures.  For example,
+ * this could be used to construct proper monitoring target regions and link
+ * those to @damon_ctx.target.
+ * @update should update the primitive-internal data structures.  For example,
+ * this could be used to update monitoring target regions for current status.
+ * @prepare_access_checks should manipulate the monitoring regions to be
+ * prepared for the next access check.
+ * @check_accesses should check the accesses to each region that made after the
+ * last preparation and update the number of observed accesses of each region.
+ * @reset_aggregated should reset the access monitoring results that aggregated
+ * by @check_accesses.
+ * @target_valid should check whether the target is still valid for the
+ * monitoring.
+ * @cleanup is called from @kdamond just before its termination.
+ */
+struct damon_primitive {
+	void (*init)(struct damon_ctx *context);
+	void (*update)(struct damon_ctx *context);
+	void (*prepare_access_checks)(struct damon_ctx *context);
+	void (*check_accesses)(struct damon_ctx *context);
+	void (*reset_aggregated)(struct damon_ctx *context);
+	bool (*target_valid)(void *target);
+	void (*cleanup)(struct damon_ctx *context);
+};
+
+/*
+ * struct damon_callback	Monitoring events notification callbacks.
+ *
+ * @before_start:	Called before starting the monitoring.
+ * @after_sampling:	Called after each sampling.
+ * @after_aggregation:	Called after each aggregation.
+ * @before_terminate:	Called before terminating the monitoring.
+ * @private:		User private data.
+ *
+ * The monitoring thread (&damon_ctx.kdamond) calls @before_start and
+ * @before_terminate just before starting and finishing the monitoring,
+ * respectively.  Therefore, those are good places for installing and cleaning
+ * @private.
+ *
+ * The monitoring thread calls @after_sampling and @after_aggregation for each
+ * of the sampling intervals and aggregation intervals, respectively.
+ * Therefore, users can safely access the monitoring results without additional
+ * protection.  For the reason, users are recommended to use these callback for
+ * the accesses to the results.
+ *
+ * If any callback returns non-zero, monitoring stops.
+ */
+struct damon_callback {
+	void *private;
+
+	int (*before_start)(struct damon_ctx *context);
+	int (*after_sampling)(struct damon_ctx *context);
+	int (*after_aggregation)(struct damon_ctx *context);
+	int (*before_terminate)(struct damon_ctx *context);
+};
+
+/**
+ * struct damon_ctx - Represents a context for each monitoring.  This is the
+ * main interface that allows users to set the attributes and get the results
+ * of the monitoring.
+ *
+ * @sample_interval:		The time between access samplings.
+ * @aggr_interval:		The time between monitor results aggregations.
+ * @primitive_update_interval:	The time between monitoring primitive updates.
+ *
+ * For each @sample_interval, DAMON checks whether each region is accessed or
+ * not.  It aggregates and keeps the access information (number of accesses to
+ * each region) for @aggr_interval time.  DAMON also checks whether the target
+ * memory regions need update (e.g., by ``mmap()`` calls from the application,
+ * in case of virtual memory monitoring) and applies the changes for each
+ * @primitive_update_interval.  All time intervals are in micro-seconds.
+ * Please refer to &struct damon_primitive and &struct damon_callback for more
+ * detail.
+ *
+ * @kdamond:		Kernel thread who does the monitoring.
+ * @kdamond_stop:	Notifies whether kdamond should stop.
+ * @kdamond_lock:	Mutex for the synchronizations with @kdamond.
+ *
+ * For each monitoring context, one kernel thread for the monitoring is
+ * created.  The pointer to the thread is stored in @kdamond.
+ *
+ * Once started, the monitoring thread runs until explicitly required to be
+ * terminated or every monitoring target is invalid.  The validity of the
+ * targets is checked via the &damon_primitive.target_valid of @primitive.  The
+ * termination can also be explicitly requested by writing non-zero to
+ * @kdamond_stop.  The thread sets @kdamond to NULL when it terminates.
+ * Therefore, users can know whether the monitoring is ongoing or terminated by
+ * reading @kdamond.  Reads and writes to @kdamond and @kdamond_stop from
+ * outside of the monitoring thread must be protected by @kdamond_lock.
+ *
+ * Note that the monitoring thread protects only @kdamond and @kdamond_stop via
+ * @kdamond_lock.  Accesses to other fields must be protected by themselves.
+ *
+ * @primitive:	Set of monitoring primitives for given use cases.
+ * @callback:	Set of callbacks for monitoring events notifications.
+ *
+ * @target:	Pointer to the user-defined monitoring target.
+ */
+struct damon_ctx {
+	unsigned long sample_interval;
+	unsigned long aggr_interval;
+	unsigned long primitive_update_interval;
+
+/* private: internal use only */
+	struct timespec64 last_aggregation;
+	struct timespec64 last_primitive_update;
+
+/* public: */
+	struct task_struct *kdamond;
+	bool kdamond_stop;
+	struct mutex kdamond_lock;
+
+	struct damon_primitive primitive;
+	struct damon_callback callback;
+
+	void *target;
+};
+
+#ifdef CONFIG_DAMON
+
+struct damon_ctx *damon_new_ctx(void);
+void damon_destroy_ctx(struct damon_ctx *ctx);
+int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
+		unsigned long aggr_int, unsigned long primitive_upd_int);
+
+int damon_start(struct damon_ctx **ctxs, int nr_ctxs);
+int damon_stop(struct damon_ctx **ctxs, int nr_ctxs);
+
+#endif	/* CONFIG_DAMON */
+
+#endif	/* _DAMON_H */
diff --git a/mm/Kconfig b/mm/Kconfig
index a0fe418652bae..d81f5da2da8b4 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -933,4 +933,6 @@ config LRU_GEN_STATS
 	  This option has a per-memcg and per-node memory overhead.
 # }
 
+source "mm/damon/Kconfig"
+
 endmenu
diff --git a/mm/Makefile b/mm/Makefile
index 8de8651da0695..b90583a89fb5a 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -116,6 +116,7 @@ obj-$(CONFIG_USERFAULTFD) += userfaultfd.o
 obj-$(CONFIG_IDLE_PAGE_TRACKING) += page_idle.o
 obj-$(CONFIG_FRAME_VECTOR) += frame_vector.o
 obj-$(CONFIG_DEBUG_PAGE_REF) += debug_page_ref.o
+obj-$(CONFIG_DAMON) += damon/
 obj-$(CONFIG_HARDENED_USERCOPY) += usercopy.o
 obj-$(CONFIG_PERCPU_STATS) += percpu-stats.o
 obj-$(CONFIG_ZONE_DEVICE) += memremap.o
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
new file mode 100644
index 0000000000000..d00e99ac1a154
--- /dev/null
+++ b/mm/damon/Kconfig
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+menu "Data Access Monitoring"
+
+config DAMON
+	bool "DAMON: Data Access Monitoring Framework"
+	help
+	  This builds a framework that allows kernel subsystems to monitor
+	  access frequency of each memory region. The information can be useful
+	  for performance-centric DRAM level memory management.
+
+	  See https://damonitor.github.io/doc/html/latest-damon/index.html for
+	  more information.
+
+endmenu
diff --git a/mm/damon/Makefile b/mm/damon/Makefile
new file mode 100644
index 0000000000000..4fd2edb4becfb
--- /dev/null
+++ b/mm/damon/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_DAMON)		:= core.o
diff --git a/mm/damon/core.c b/mm/damon/core.c
new file mode 100644
index 0000000000000..651590bf49b17
--- /dev/null
+++ b/mm/damon/core.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Data Access Monitor
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#define pr_fmt(fmt) "damon: " fmt
+
+#include <linux/damon.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+#include <linux/slab.h>
+
+static DEFINE_MUTEX(damon_lock);
+static int nr_running_ctxs;
+
+struct damon_ctx *damon_new_ctx(void)
+{
+	struct damon_ctx *ctx;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return NULL;
+
+	ctx->sample_interval = 5 * 1000;
+	ctx->aggr_interval = 100 * 1000;
+	ctx->primitive_update_interval = 60 * 1000 * 1000;
+
+	ktime_get_coarse_ts64(&ctx->last_aggregation);
+	ctx->last_primitive_update = ctx->last_aggregation;
+
+	mutex_init(&ctx->kdamond_lock);
+
+	ctx->target = NULL;
+
+	return ctx;
+}
+
+void damon_destroy_ctx(struct damon_ctx *ctx)
+{
+	if (ctx->primitive.cleanup)
+		ctx->primitive.cleanup(ctx);
+	kfree(ctx);
+}
+
+/**
+ * damon_set_attrs() - Set attributes for the monitoring.
+ * @ctx:		monitoring context
+ * @sample_int:		time interval between samplings
+ * @aggr_int:		time interval between aggregations
+ * @primitive_upd_int:	time interval between monitoring primitive updates
+ *
+ * This function should not be called while the kdamond is running.
+ * Every time interval is in micro-seconds.
+ *
+ * Return: 0 on success, negative error code otherwise.
+ */
+int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
+		    unsigned long aggr_int, unsigned long primitive_upd_int)
+{
+	ctx->sample_interval = sample_int;
+	ctx->aggr_interval = aggr_int;
+	ctx->primitive_update_interval = primitive_upd_int;
+
+	return 0;
+}
+
+static bool damon_kdamond_running(struct damon_ctx *ctx)
+{
+	bool running;
+
+	mutex_lock(&ctx->kdamond_lock);
+	running = ctx->kdamond != NULL;
+	mutex_unlock(&ctx->kdamond_lock);
+
+	return running;
+}
+
+static int kdamond_fn(void *data);
+
+/*
+ * __damon_start() - Starts monitoring with given context.
+ * @ctx:	monitoring context
+ *
+ * This function should be called while damon_lock is hold.
+ *
+ * Return: 0 on success, negative error code otherwise.
+ */
+static int __damon_start(struct damon_ctx *ctx)
+{
+	int err = -EBUSY;
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (!ctx->kdamond) {
+		err = 0;
+		ctx->kdamond_stop = false;
+		ctx->kdamond = kthread_run(kdamond_fn, ctx, "kdamond.%d",
+				nr_running_ctxs);
+		if (IS_ERR(ctx->kdamond)) {
+			err = PTR_ERR(ctx->kdamond);
+			ctx->kdamond = 0;
+		}
+	}
+	mutex_unlock(&ctx->kdamond_lock);
+
+	return err;
+}
+
+/**
+ * damon_start() - Starts the monitorings for a given group of contexts.
+ * @ctxs:	an array of the pointers for contexts to start monitoring
+ * @nr_ctxs:	size of @ctxs
+ *
+ * This function starts a group of monitoring threads for a group of monitoring
+ * contexts.  One thread per each context is created and run in parallel.  The
+ * caller should handle synchronization between the threads by itself.  If a
+ * group of threads that created by other 'damon_start()' call is currently
+ * running, this function does nothing but returns -EBUSY.
+ *
+ * Return: 0 on success, negative error code otherwise.
+ */
+int damon_start(struct damon_ctx **ctxs, int nr_ctxs)
+{
+	int i;
+	int err = 0;
+
+	mutex_lock(&damon_lock);
+	if (nr_running_ctxs) {
+		mutex_unlock(&damon_lock);
+		return -EBUSY;
+	}
+
+	for (i = 0; i < nr_ctxs; i++) {
+		err = __damon_start(ctxs[i]);
+		if (err)
+			break;
+		nr_running_ctxs++;
+	}
+	mutex_unlock(&damon_lock);
+
+	return err;
+}
+
+/*
+ * __damon_stop() - Stops monitoring of given context.
+ * @ctx:	monitoring context
+ *
+ * Return: 0 on success, negative error code otherwise.
+ */
+static int __damon_stop(struct damon_ctx *ctx)
+{
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond) {
+		ctx->kdamond_stop = true;
+		mutex_unlock(&ctx->kdamond_lock);
+		while (damon_kdamond_running(ctx))
+			usleep_range(ctx->sample_interval,
+					ctx->sample_interval * 2);
+		return 0;
+	}
+	mutex_unlock(&ctx->kdamond_lock);
+
+	return -EPERM;
+}
+
+/**
+ * damon_stop() - Stops the monitorings for a given group of contexts.
+ * @ctxs:	an array of the pointers for contexts to stop monitoring
+ * @nr_ctxs:	size of @ctxs
+ *
+ * Return: 0 on success, negative error code otherwise.
+ */
+int damon_stop(struct damon_ctx **ctxs, int nr_ctxs)
+{
+	int i, err = 0;
+
+	for (i = 0; i < nr_ctxs; i++) {
+		/* nr_running_ctxs is decremented in kdamond_fn */
+		err = __damon_stop(ctxs[i]);
+		if (err)
+			return err;
+	}
+
+	return err;
+}
+
+/*
+ * damon_check_reset_time_interval() - Check if a time interval is elapsed.
+ * @baseline:	the time to check whether the interval has elapsed since
+ * @interval:	the time interval (microseconds)
+ *
+ * See whether the given time interval has passed since the given baseline
+ * time.  If so, it also updates the baseline to current time for next check.
+ *
+ * Return:	true if the time interval has passed, or false otherwise.
+ */
+static bool damon_check_reset_time_interval(struct timespec64 *baseline,
+		unsigned long interval)
+{
+	struct timespec64 now;
+
+	ktime_get_coarse_ts64(&now);
+	if ((timespec64_to_ns(&now) - timespec64_to_ns(baseline)) <
+			interval * 1000)
+		return false;
+	*baseline = now;
+	return true;
+}
+
+/*
+ * Check whether it is time to flush the aggregated information
+ */
+static bool kdamond_aggregate_interval_passed(struct damon_ctx *ctx)
+{
+	return damon_check_reset_time_interval(&ctx->last_aggregation,
+			ctx->aggr_interval);
+}
+
+/*
+ * Check whether it is time to check and apply the target monitoring regions
+ *
+ * Returns true if it is.
+ */
+static bool kdamond_need_update_primitive(struct damon_ctx *ctx)
+{
+	return damon_check_reset_time_interval(&ctx->last_primitive_update,
+			ctx->primitive_update_interval);
+}
+
+/*
+ * Check whether current monitoring should be stopped
+ *
+ * The monitoring is stopped when either the user requested to stop, or all
+ * monitoring targets are invalid.
+ *
+ * Returns true if need to stop current monitoring.
+ */
+static bool kdamond_need_stop(struct damon_ctx *ctx)
+{
+	bool stop;
+
+	mutex_lock(&ctx->kdamond_lock);
+	stop = ctx->kdamond_stop;
+	mutex_unlock(&ctx->kdamond_lock);
+	if (stop)
+		return true;
+
+	if (!ctx->primitive.target_valid)
+		return false;
+
+	return !ctx->primitive.target_valid(ctx->target);
+}
+
+static void set_kdamond_stop(struct damon_ctx *ctx)
+{
+	mutex_lock(&ctx->kdamond_lock);
+	ctx->kdamond_stop = true;
+	mutex_unlock(&ctx->kdamond_lock);
+}
+
+/*
+ * The monitoring daemon that runs as a kernel thread
+ */
+static int kdamond_fn(void *data)
+{
+	struct damon_ctx *ctx = (struct damon_ctx *)data;
+
+	mutex_lock(&ctx->kdamond_lock);
+	pr_info("kdamond (%d) starts\n", ctx->kdamond->pid);
+	mutex_unlock(&ctx->kdamond_lock);
+
+	if (ctx->primitive.init)
+		ctx->primitive.init(ctx);
+	if (ctx->callback.before_start && ctx->callback.before_start(ctx))
+		set_kdamond_stop(ctx);
+
+	while (!kdamond_need_stop(ctx)) {
+		if (ctx->primitive.prepare_access_checks)
+			ctx->primitive.prepare_access_checks(ctx);
+		if (ctx->callback.after_sampling &&
+				ctx->callback.after_sampling(ctx))
+			set_kdamond_stop(ctx);
+
+		usleep_range(ctx->sample_interval, ctx->sample_interval + 1);
+
+		if (ctx->primitive.check_accesses)
+			ctx->primitive.check_accesses(ctx);
+
+		if (kdamond_aggregate_interval_passed(ctx)) {
+			if (ctx->callback.after_aggregation &&
+					ctx->callback.after_aggregation(ctx))
+				set_kdamond_stop(ctx);
+			if (ctx->primitive.reset_aggregated)
+				ctx->primitive.reset_aggregated(ctx);
+		}
+
+		if (kdamond_need_update_primitive(ctx)) {
+			if (ctx->primitive.update)
+				ctx->primitive.update(ctx);
+		}
+	}
+
+	if (ctx->callback.before_terminate &&
+			ctx->callback.before_terminate(ctx))
+		set_kdamond_stop(ctx);
+	if (ctx->primitive.cleanup)
+		ctx->primitive.cleanup(ctx);
+
+	pr_debug("kdamond (%d) finishes\n", ctx->kdamond->pid);
+	mutex_lock(&ctx->kdamond_lock);
+	ctx->kdamond = NULL;
+	mutex_unlock(&ctx->kdamond_lock);
+
+	mutex_lock(&damon_lock);
+	nr_running_ctxs--;
+	mutex_unlock(&damon_lock);
+
+	do_exit(0);
+}
-- 
GitLab


From 40064a18778690e9c6c27c9878df868ca2efe1a0 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:32 -0700
Subject: [PATCH 4780/4878] UPSTREAM: mm/damon/core: implement region-based
 sampling

To avoid the unbounded increase of the overhead, DAMON groups adjacent
pages that are assumed to have the same access frequencies into a
region.  As long as the assumption (pages in a region have the same
access frequencies) is kept, only one page in the region is required to
be checked.  Thus, for each ``sampling interval``,

 1. the 'prepare_access_checks' primitive picks one page in each region,
 2. waits for one ``sampling interval``,
 3. checks whether the page is accessed meanwhile, and
 4. increases the access count of the region if so.

Therefore, the monitoring overhead is controllable by adjusting the
number of regions.  DAMON allows both the underlying primitives and user
callbacks to adjust regions for the trade-off.  In other words, this
commit makes DAMON to use not only time-based sampling but also
space-based sampling.

This scheme, however, cannot preserve the quality of the output if the
assumption is not guaranteed.  Next commit will address this problem.

Link: https://lkml.kernel.org/r/20210716081449.22187-3-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Leonard Foerster <foersleo@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit f23b8eee1871a6db5c37f90831147de5426c40b7)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iaecd1ea4d5123e7ffc21ca63de0fe3555bab079d
---
 include/linux/damon.h |  77 ++++++++++++++++++++++-
 mm/damon/core.c       | 143 ++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 213 insertions(+), 7 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 2f652602b1eaa..67db309ad61be 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -12,6 +12,48 @@
 #include <linux/time64.h>
 #include <linux/types.h>
 
+/**
+ * struct damon_addr_range - Represents an address region of [@start, @end).
+ * @start:	Start address of the region (inclusive).
+ * @end:	End address of the region (exclusive).
+ */
+struct damon_addr_range {
+	unsigned long start;
+	unsigned long end;
+};
+
+/**
+ * struct damon_region - Represents a monitoring target region.
+ * @ar:			The address range of the region.
+ * @sampling_addr:	Address of the sample for the next access check.
+ * @nr_accesses:	Access frequency of this region.
+ * @list:		List head for siblings.
+ */
+struct damon_region {
+	struct damon_addr_range ar;
+	unsigned long sampling_addr;
+	unsigned int nr_accesses;
+	struct list_head list;
+};
+
+/**
+ * struct damon_target - Represents a monitoring target.
+ * @id:			Unique identifier for this target.
+ * @regions_list:	Head of the monitoring target regions of this target.
+ * @list:		List head for siblings.
+ *
+ * Each monitoring context could have multiple targets.  For example, a context
+ * for virtual memory address spaces could have multiple target processes.  The
+ * @id of each target should be unique among the targets of the context.  For
+ * example, in the virtual address monitoring context, it could be a pidfd or
+ * an address of an mm_struct.
+ */
+struct damon_target {
+	unsigned long id;
+	struct list_head regions_list;
+	struct list_head list;
+};
+
 struct damon_ctx;
 
 /**
@@ -36,7 +78,7 @@ struct damon_ctx;
  *
  * @init should initialize primitive-internal data structures.  For example,
  * this could be used to construct proper monitoring target regions and link
- * those to @damon_ctx.target.
+ * those to @damon_ctx.adaptive_targets.
  * @update should update the primitive-internal data structures.  For example,
  * this could be used to update monitoring target regions for current status.
  * @prepare_access_checks should manipulate the monitoring regions to be
@@ -130,7 +172,7 @@ struct damon_callback {
  * @primitive:	Set of monitoring primitives for given use cases.
  * @callback:	Set of callbacks for monitoring events notifications.
  *
- * @target:	Pointer to the user-defined monitoring target.
+ * @region_targets:	Head of monitoring targets (&damon_target) list.
  */
 struct damon_ctx {
 	unsigned long sample_interval;
@@ -149,11 +191,40 @@ struct damon_ctx {
 	struct damon_primitive primitive;
 	struct damon_callback callback;
 
-	void *target;
+	struct list_head region_targets;
 };
 
+#define damon_next_region(r) \
+	(container_of(r->list.next, struct damon_region, list))
+
+#define damon_prev_region(r) \
+	(container_of(r->list.prev, struct damon_region, list))
+
+#define damon_for_each_region(r, t) \
+	list_for_each_entry(r, &t->regions_list, list)
+
+#define damon_for_each_region_safe(r, next, t) \
+	list_for_each_entry_safe(r, next, &t->regions_list, list)
+
+#define damon_for_each_target(t, ctx) \
+	list_for_each_entry(t, &(ctx)->region_targets, list)
+
+#define damon_for_each_target_safe(t, next, ctx)	\
+	list_for_each_entry_safe(t, next, &(ctx)->region_targets, list)
+
 #ifdef CONFIG_DAMON
 
+struct damon_region *damon_new_region(unsigned long start, unsigned long end);
+inline void damon_insert_region(struct damon_region *r,
+		struct damon_region *prev, struct damon_region *next);
+void damon_add_region(struct damon_region *r, struct damon_target *t);
+void damon_destroy_region(struct damon_region *r);
+
+struct damon_target *damon_new_target(unsigned long id);
+void damon_add_target(struct damon_ctx *ctx, struct damon_target *t);
+void damon_free_target(struct damon_target *t);
+void damon_destroy_target(struct damon_target *t);
+
 struct damon_ctx *damon_new_ctx(void);
 void damon_destroy_ctx(struct damon_ctx *ctx);
 int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 651590bf49b17..947486a150ce2 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -15,6 +15,101 @@
 static DEFINE_MUTEX(damon_lock);
 static int nr_running_ctxs;
 
+/*
+ * Construct a damon_region struct
+ *
+ * Returns the pointer to the new struct if success, or NULL otherwise
+ */
+struct damon_region *damon_new_region(unsigned long start, unsigned long end)
+{
+	struct damon_region *region;
+
+	region = kmalloc(sizeof(*region), GFP_KERNEL);
+	if (!region)
+		return NULL;
+
+	region->ar.start = start;
+	region->ar.end = end;
+	region->nr_accesses = 0;
+	INIT_LIST_HEAD(&region->list);
+
+	return region;
+}
+
+/*
+ * Add a region between two other regions
+ */
+inline void damon_insert_region(struct damon_region *r,
+		struct damon_region *prev, struct damon_region *next)
+{
+	__list_add(&r->list, &prev->list, &next->list);
+}
+
+void damon_add_region(struct damon_region *r, struct damon_target *t)
+{
+	list_add_tail(&r->list, &t->regions_list);
+}
+
+static void damon_del_region(struct damon_region *r)
+{
+	list_del(&r->list);
+}
+
+static void damon_free_region(struct damon_region *r)
+{
+	kfree(r);
+}
+
+void damon_destroy_region(struct damon_region *r)
+{
+	damon_del_region(r);
+	damon_free_region(r);
+}
+
+/*
+ * Construct a damon_target struct
+ *
+ * Returns the pointer to the new struct if success, or NULL otherwise
+ */
+struct damon_target *damon_new_target(unsigned long id)
+{
+	struct damon_target *t;
+
+	t = kmalloc(sizeof(*t), GFP_KERNEL);
+	if (!t)
+		return NULL;
+
+	t->id = id;
+	INIT_LIST_HEAD(&t->regions_list);
+
+	return t;
+}
+
+void damon_add_target(struct damon_ctx *ctx, struct damon_target *t)
+{
+	list_add_tail(&t->list, &ctx->region_targets);
+}
+
+static void damon_del_target(struct damon_target *t)
+{
+	list_del(&t->list);
+}
+
+void damon_free_target(struct damon_target *t)
+{
+	struct damon_region *r, *next;
+
+	damon_for_each_region_safe(r, next, t)
+		damon_free_region(r);
+	kfree(t);
+}
+
+void damon_destroy_target(struct damon_target *t)
+{
+	damon_del_target(t);
+	damon_free_target(t);
+}
+
 struct damon_ctx *damon_new_ctx(void)
 {
 	struct damon_ctx *ctx;
@@ -32,15 +127,27 @@ struct damon_ctx *damon_new_ctx(void)
 
 	mutex_init(&ctx->kdamond_lock);
 
-	ctx->target = NULL;
+	INIT_LIST_HEAD(&ctx->region_targets);
 
 	return ctx;
 }
 
-void damon_destroy_ctx(struct damon_ctx *ctx)
+static void damon_destroy_targets(struct damon_ctx *ctx)
 {
-	if (ctx->primitive.cleanup)
+	struct damon_target *t, *next_t;
+
+	if (ctx->primitive.cleanup) {
 		ctx->primitive.cleanup(ctx);
+		return;
+	}
+
+	damon_for_each_target_safe(t, next_t, ctx)
+		damon_destroy_target(t);
+}
+
+void damon_destroy_ctx(struct damon_ctx *ctx)
+{
+	damon_destroy_targets(ctx);
 	kfree(ctx);
 }
 
@@ -217,6 +324,21 @@ static bool kdamond_aggregate_interval_passed(struct damon_ctx *ctx)
 			ctx->aggr_interval);
 }
 
+/*
+ * Reset the aggregated monitoring results ('nr_accesses' of each region).
+ */
+static void kdamond_reset_aggregated(struct damon_ctx *c)
+{
+	struct damon_target *t;
+
+	damon_for_each_target(t, c) {
+		struct damon_region *r;
+
+		damon_for_each_region(r, t)
+			r->nr_accesses = 0;
+	}
+}
+
 /*
  * Check whether it is time to check and apply the target monitoring regions
  *
@@ -238,6 +360,7 @@ static bool kdamond_need_update_primitive(struct damon_ctx *ctx)
  */
 static bool kdamond_need_stop(struct damon_ctx *ctx)
 {
+	struct damon_target *t;
 	bool stop;
 
 	mutex_lock(&ctx->kdamond_lock);
@@ -249,7 +372,12 @@ static bool kdamond_need_stop(struct damon_ctx *ctx)
 	if (!ctx->primitive.target_valid)
 		return false;
 
-	return !ctx->primitive.target_valid(ctx->target);
+	damon_for_each_target(t, ctx) {
+		if (ctx->primitive.target_valid(t))
+			return false;
+	}
+
+	return true;
 }
 
 static void set_kdamond_stop(struct damon_ctx *ctx)
@@ -265,6 +393,8 @@ static void set_kdamond_stop(struct damon_ctx *ctx)
 static int kdamond_fn(void *data)
 {
 	struct damon_ctx *ctx = (struct damon_ctx *)data;
+	struct damon_target *t;
+	struct damon_region *r, *next;
 
 	mutex_lock(&ctx->kdamond_lock);
 	pr_info("kdamond (%d) starts\n", ctx->kdamond->pid);
@@ -291,6 +421,7 @@ static int kdamond_fn(void *data)
 			if (ctx->callback.after_aggregation &&
 					ctx->callback.after_aggregation(ctx))
 				set_kdamond_stop(ctx);
+			kdamond_reset_aggregated(ctx);
 			if (ctx->primitive.reset_aggregated)
 				ctx->primitive.reset_aggregated(ctx);
 		}
@@ -300,6 +431,10 @@ static int kdamond_fn(void *data)
 				ctx->primitive.update(ctx);
 		}
 	}
+	damon_for_each_target(t, ctx) {
+		damon_for_each_region_safe(r, next, t)
+			damon_destroy_region(r);
+	}
 
 	if (ctx->callback.before_terminate &&
 			ctx->callback.before_terminate(ctx))
-- 
GitLab


From f78eee74b4e13fb3e552d6e1167e3c8c77e888e3 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:36 -0700
Subject: [PATCH 4781/4878] UPSTREAM: mm/damon: adaptively adjust regions

Even somehow the initial monitoring target regions are well constructed to
fulfill the assumption (pages in same region have similar access
frequencies), the data access pattern can be dynamically changed.  This
will result in low monitoring quality.  To keep the assumption as much as
possible, DAMON adaptively merges and splits each region based on their
access frequency.

For each ``aggregation interval``, it compares the access frequencies of
adjacent regions and merges those if the frequency difference is small.
Then, after it reports and clears the aggregated access frequency of each
region, it splits each region into two or three regions if the total
number of regions will not exceed the user-specified maximum number of
regions after the split.

In this way, DAMON provides its best-effort quality and minimal overhead
while keeping the upper-bound overhead that users set.

Link: https://lkml.kernel.org/r/20210716081449.22187-4-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Leonard Foerster <foersleo@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit b9a6ac4e4ede4172d165c133398b93e3233b0ba7)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I330416cf16f4e72fd8f26e01d3bd425738216c70
---
 include/linux/damon.h |  30 ++++--
 mm/damon/core.c       | 224 ++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 237 insertions(+), 17 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 67db309ad61be..ce2a84b26cd74 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -12,6 +12,9 @@
 #include <linux/time64.h>
 #include <linux/types.h>
 
+/* Minimal region size.  Every damon_region is aligned by this. */
+#define DAMON_MIN_REGION	PAGE_SIZE
+
 /**
  * struct damon_addr_range - Represents an address region of [@start, @end).
  * @start:	Start address of the region (inclusive).
@@ -39,6 +42,7 @@ struct damon_region {
 /**
  * struct damon_target - Represents a monitoring target.
  * @id:			Unique identifier for this target.
+ * @nr_regions:		Number of monitoring target regions of this target.
  * @regions_list:	Head of the monitoring target regions of this target.
  * @list:		List head for siblings.
  *
@@ -50,6 +54,7 @@ struct damon_region {
  */
 struct damon_target {
 	unsigned long id;
+	unsigned int nr_regions;
 	struct list_head regions_list;
 	struct list_head list;
 };
@@ -85,6 +90,8 @@ struct damon_ctx;
  * prepared for the next access check.
  * @check_accesses should check the accesses to each region that made after the
  * last preparation and update the number of observed accesses of each region.
+ * It should also return max number of observed accesses that made as a result
+ * of its update.  The value will be used for regions adjustment threshold.
  * @reset_aggregated should reset the access monitoring results that aggregated
  * by @check_accesses.
  * @target_valid should check whether the target is still valid for the
@@ -95,7 +102,7 @@ struct damon_primitive {
 	void (*init)(struct damon_ctx *context);
 	void (*update)(struct damon_ctx *context);
 	void (*prepare_access_checks)(struct damon_ctx *context);
-	void (*check_accesses)(struct damon_ctx *context);
+	unsigned int (*check_accesses)(struct damon_ctx *context);
 	void (*reset_aggregated)(struct damon_ctx *context);
 	bool (*target_valid)(void *target);
 	void (*cleanup)(struct damon_ctx *context);
@@ -172,7 +179,9 @@ struct damon_callback {
  * @primitive:	Set of monitoring primitives for given use cases.
  * @callback:	Set of callbacks for monitoring events notifications.
  *
- * @region_targets:	Head of monitoring targets (&damon_target) list.
+ * @min_nr_regions:	The minimum number of adaptive monitoring regions.
+ * @max_nr_regions:	The maximum number of adaptive monitoring regions.
+ * @adaptive_targets:	Head of monitoring targets (&damon_target) list.
  */
 struct damon_ctx {
 	unsigned long sample_interval;
@@ -191,7 +200,9 @@ struct damon_ctx {
 	struct damon_primitive primitive;
 	struct damon_callback callback;
 
-	struct list_head region_targets;
+	unsigned long min_nr_regions;
+	unsigned long max_nr_regions;
+	struct list_head adaptive_targets;
 };
 
 #define damon_next_region(r) \
@@ -207,28 +218,31 @@ struct damon_ctx {
 	list_for_each_entry_safe(r, next, &t->regions_list, list)
 
 #define damon_for_each_target(t, ctx) \
-	list_for_each_entry(t, &(ctx)->region_targets, list)
+	list_for_each_entry(t, &(ctx)->adaptive_targets, list)
 
 #define damon_for_each_target_safe(t, next, ctx)	\
-	list_for_each_entry_safe(t, next, &(ctx)->region_targets, list)
+	list_for_each_entry_safe(t, next, &(ctx)->adaptive_targets, list)
 
 #ifdef CONFIG_DAMON
 
 struct damon_region *damon_new_region(unsigned long start, unsigned long end);
 inline void damon_insert_region(struct damon_region *r,
-		struct damon_region *prev, struct damon_region *next);
+		struct damon_region *prev, struct damon_region *next,
+		struct damon_target *t);
 void damon_add_region(struct damon_region *r, struct damon_target *t);
-void damon_destroy_region(struct damon_region *r);
+void damon_destroy_region(struct damon_region *r, struct damon_target *t);
 
 struct damon_target *damon_new_target(unsigned long id);
 void damon_add_target(struct damon_ctx *ctx, struct damon_target *t);
 void damon_free_target(struct damon_target *t);
 void damon_destroy_target(struct damon_target *t);
+unsigned int damon_nr_regions(struct damon_target *t);
 
 struct damon_ctx *damon_new_ctx(void);
 void damon_destroy_ctx(struct damon_ctx *ctx);
 int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
-		unsigned long aggr_int, unsigned long primitive_upd_int);
+		unsigned long aggr_int, unsigned long primitive_upd_int,
+		unsigned long min_nr_reg, unsigned long max_nr_reg);
 
 int damon_start(struct damon_ctx **ctxs, int nr_ctxs);
 int damon_stop(struct damon_ctx **ctxs, int nr_ctxs);
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 947486a150ce2..28a2c78914faa 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -10,8 +10,12 @@
 #include <linux/damon.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/random.h>
 #include <linux/slab.h>
 
+/* Get a random number in [l, r) */
+#define damon_rand(l, r) (l + prandom_u32_max(r - l))
+
 static DEFINE_MUTEX(damon_lock);
 static int nr_running_ctxs;
 
@@ -40,19 +44,23 @@ struct damon_region *damon_new_region(unsigned long start, unsigned long end)
  * Add a region between two other regions
  */
 inline void damon_insert_region(struct damon_region *r,
-		struct damon_region *prev, struct damon_region *next)
+		struct damon_region *prev, struct damon_region *next,
+		struct damon_target *t)
 {
 	__list_add(&r->list, &prev->list, &next->list);
+	t->nr_regions++;
 }
 
 void damon_add_region(struct damon_region *r, struct damon_target *t)
 {
 	list_add_tail(&r->list, &t->regions_list);
+	t->nr_regions++;
 }
 
-static void damon_del_region(struct damon_region *r)
+static void damon_del_region(struct damon_region *r, struct damon_target *t)
 {
 	list_del(&r->list);
+	t->nr_regions--;
 }
 
 static void damon_free_region(struct damon_region *r)
@@ -60,9 +68,9 @@ static void damon_free_region(struct damon_region *r)
 	kfree(r);
 }
 
-void damon_destroy_region(struct damon_region *r)
+void damon_destroy_region(struct damon_region *r, struct damon_target *t)
 {
-	damon_del_region(r);
+	damon_del_region(r, t);
 	damon_free_region(r);
 }
 
@@ -80,6 +88,7 @@ struct damon_target *damon_new_target(unsigned long id)
 		return NULL;
 
 	t->id = id;
+	t->nr_regions = 0;
 	INIT_LIST_HEAD(&t->regions_list);
 
 	return t;
@@ -87,7 +96,7 @@ struct damon_target *damon_new_target(unsigned long id)
 
 void damon_add_target(struct damon_ctx *ctx, struct damon_target *t)
 {
-	list_add_tail(&t->list, &ctx->region_targets);
+	list_add_tail(&t->list, &ctx->adaptive_targets);
 }
 
 static void damon_del_target(struct damon_target *t)
@@ -110,6 +119,11 @@ void damon_destroy_target(struct damon_target *t)
 	damon_free_target(t);
 }
 
+unsigned int damon_nr_regions(struct damon_target *t)
+{
+	return t->nr_regions;
+}
+
 struct damon_ctx *damon_new_ctx(void)
 {
 	struct damon_ctx *ctx;
@@ -127,7 +141,10 @@ struct damon_ctx *damon_new_ctx(void)
 
 	mutex_init(&ctx->kdamond_lock);
 
-	INIT_LIST_HEAD(&ctx->region_targets);
+	ctx->min_nr_regions = 10;
+	ctx->max_nr_regions = 1000;
+
+	INIT_LIST_HEAD(&ctx->adaptive_targets);
 
 	return ctx;
 }
@@ -157,6 +174,8 @@ void damon_destroy_ctx(struct damon_ctx *ctx)
  * @sample_int:		time interval between samplings
  * @aggr_int:		time interval between aggregations
  * @primitive_upd_int:	time interval between monitoring primitive updates
+ * @min_nr_reg:		minimal number of regions
+ * @max_nr_reg:		maximum number of regions
  *
  * This function should not be called while the kdamond is running.
  * Every time interval is in micro-seconds.
@@ -164,15 +183,49 @@ void damon_destroy_ctx(struct damon_ctx *ctx)
  * Return: 0 on success, negative error code otherwise.
  */
 int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
-		    unsigned long aggr_int, unsigned long primitive_upd_int)
+		    unsigned long aggr_int, unsigned long primitive_upd_int,
+		    unsigned long min_nr_reg, unsigned long max_nr_reg)
 {
+	if (min_nr_reg < 3) {
+		pr_err("min_nr_regions (%lu) must be at least 3\n",
+				min_nr_reg);
+		return -EINVAL;
+	}
+	if (min_nr_reg > max_nr_reg) {
+		pr_err("invalid nr_regions.  min (%lu) > max (%lu)\n",
+				min_nr_reg, max_nr_reg);
+		return -EINVAL;
+	}
+
 	ctx->sample_interval = sample_int;
 	ctx->aggr_interval = aggr_int;
 	ctx->primitive_update_interval = primitive_upd_int;
+	ctx->min_nr_regions = min_nr_reg;
+	ctx->max_nr_regions = max_nr_reg;
 
 	return 0;
 }
 
+/* Returns the size upper limit for each monitoring region */
+static unsigned long damon_region_sz_limit(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	struct damon_region *r;
+	unsigned long sz = 0;
+
+	damon_for_each_target(t, ctx) {
+		damon_for_each_region(r, t)
+			sz += r->ar.end - r->ar.start;
+	}
+
+	if (ctx->min_nr_regions)
+		sz /= ctx->min_nr_regions;
+	if (sz < DAMON_MIN_REGION)
+		sz = DAMON_MIN_REGION;
+
+	return sz;
+}
+
 static bool damon_kdamond_running(struct damon_ctx *ctx)
 {
 	bool running;
@@ -339,6 +392,150 @@ static void kdamond_reset_aggregated(struct damon_ctx *c)
 	}
 }
 
+#define sz_damon_region(r) (r->ar.end - r->ar.start)
+
+/*
+ * Merge two adjacent regions into one region
+ */
+static void damon_merge_two_regions(struct damon_target *t,
+		struct damon_region *l, struct damon_region *r)
+{
+	unsigned long sz_l = sz_damon_region(l), sz_r = sz_damon_region(r);
+
+	l->nr_accesses = (l->nr_accesses * sz_l + r->nr_accesses * sz_r) /
+			(sz_l + sz_r);
+	l->ar.end = r->ar.end;
+	damon_destroy_region(r, t);
+}
+
+#define diff_of(a, b) (a > b ? a - b : b - a)
+
+/*
+ * Merge adjacent regions having similar access frequencies
+ *
+ * t		target affected by this merge operation
+ * thres	'->nr_accesses' diff threshold for the merge
+ * sz_limit	size upper limit of each region
+ */
+static void damon_merge_regions_of(struct damon_target *t, unsigned int thres,
+				   unsigned long sz_limit)
+{
+	struct damon_region *r, *prev = NULL, *next;
+
+	damon_for_each_region_safe(r, next, t) {
+		if (prev && prev->ar.end == r->ar.start &&
+		    diff_of(prev->nr_accesses, r->nr_accesses) <= thres &&
+		    sz_damon_region(prev) + sz_damon_region(r) <= sz_limit)
+			damon_merge_two_regions(t, prev, r);
+		else
+			prev = r;
+	}
+}
+
+/*
+ * Merge adjacent regions having similar access frequencies
+ *
+ * threshold	'->nr_accesses' diff threshold for the merge
+ * sz_limit	size upper limit of each region
+ *
+ * This function merges monitoring target regions which are adjacent and their
+ * access frequencies are similar.  This is for minimizing the monitoring
+ * overhead under the dynamically changeable access pattern.  If a merge was
+ * unnecessarily made, later 'kdamond_split_regions()' will revert it.
+ */
+static void kdamond_merge_regions(struct damon_ctx *c, unsigned int threshold,
+				  unsigned long sz_limit)
+{
+	struct damon_target *t;
+
+	damon_for_each_target(t, c)
+		damon_merge_regions_of(t, threshold, sz_limit);
+}
+
+/*
+ * Split a region in two
+ *
+ * r		the region to be split
+ * sz_r		size of the first sub-region that will be made
+ */
+static void damon_split_region_at(struct damon_ctx *ctx,
+		struct damon_target *t, struct damon_region *r,
+		unsigned long sz_r)
+{
+	struct damon_region *new;
+
+	new = damon_new_region(r->ar.start + sz_r, r->ar.end);
+	if (!new)
+		return;
+
+	r->ar.end = new->ar.start;
+
+	damon_insert_region(new, r, damon_next_region(r), t);
+}
+
+/* Split every region in the given target into 'nr_subs' regions */
+static void damon_split_regions_of(struct damon_ctx *ctx,
+				     struct damon_target *t, int nr_subs)
+{
+	struct damon_region *r, *next;
+	unsigned long sz_region, sz_sub = 0;
+	int i;
+
+	damon_for_each_region_safe(r, next, t) {
+		sz_region = r->ar.end - r->ar.start;
+
+		for (i = 0; i < nr_subs - 1 &&
+				sz_region > 2 * DAMON_MIN_REGION; i++) {
+			/*
+			 * Randomly select size of left sub-region to be at
+			 * least 10 percent and at most 90% of original region
+			 */
+			sz_sub = ALIGN_DOWN(damon_rand(1, 10) *
+					sz_region / 10, DAMON_MIN_REGION);
+			/* Do not allow blank region */
+			if (sz_sub == 0 || sz_sub >= sz_region)
+				continue;
+
+			damon_split_region_at(ctx, t, r, sz_sub);
+			sz_region = sz_sub;
+		}
+	}
+}
+
+/*
+ * Split every target region into randomly-sized small regions
+ *
+ * This function splits every target region into random-sized small regions if
+ * current total number of the regions is equal or smaller than half of the
+ * user-specified maximum number of regions.  This is for maximizing the
+ * monitoring accuracy under the dynamically changeable access patterns.  If a
+ * split was unnecessarily made, later 'kdamond_merge_regions()' will revert
+ * it.
+ */
+static void kdamond_split_regions(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	unsigned int nr_regions = 0;
+	static unsigned int last_nr_regions;
+	int nr_subregions = 2;
+
+	damon_for_each_target(t, ctx)
+		nr_regions += damon_nr_regions(t);
+
+	if (nr_regions > ctx->max_nr_regions / 2)
+		return;
+
+	/* Maybe the middle of the region has different access frequency */
+	if (last_nr_regions == nr_regions &&
+			nr_regions < ctx->max_nr_regions / 3)
+		nr_subregions = 3;
+
+	damon_for_each_target(t, ctx)
+		damon_split_regions_of(ctx, t, nr_subregions);
+
+	last_nr_regions = nr_regions;
+}
+
 /*
  * Check whether it is time to check and apply the target monitoring regions
  *
@@ -395,6 +592,8 @@ static int kdamond_fn(void *data)
 	struct damon_ctx *ctx = (struct damon_ctx *)data;
 	struct damon_target *t;
 	struct damon_region *r, *next;
+	unsigned int max_nr_accesses = 0;
+	unsigned long sz_limit = 0;
 
 	mutex_lock(&ctx->kdamond_lock);
 	pr_info("kdamond (%d) starts\n", ctx->kdamond->pid);
@@ -405,6 +604,8 @@ static int kdamond_fn(void *data)
 	if (ctx->callback.before_start && ctx->callback.before_start(ctx))
 		set_kdamond_stop(ctx);
 
+	sz_limit = damon_region_sz_limit(ctx);
+
 	while (!kdamond_need_stop(ctx)) {
 		if (ctx->primitive.prepare_access_checks)
 			ctx->primitive.prepare_access_checks(ctx);
@@ -415,13 +616,17 @@ static int kdamond_fn(void *data)
 		usleep_range(ctx->sample_interval, ctx->sample_interval + 1);
 
 		if (ctx->primitive.check_accesses)
-			ctx->primitive.check_accesses(ctx);
+			max_nr_accesses = ctx->primitive.check_accesses(ctx);
 
 		if (kdamond_aggregate_interval_passed(ctx)) {
+			kdamond_merge_regions(ctx,
+					max_nr_accesses / 10,
+					sz_limit);
 			if (ctx->callback.after_aggregation &&
 					ctx->callback.after_aggregation(ctx))
 				set_kdamond_stop(ctx);
 			kdamond_reset_aggregated(ctx);
+			kdamond_split_regions(ctx);
 			if (ctx->primitive.reset_aggregated)
 				ctx->primitive.reset_aggregated(ctx);
 		}
@@ -429,11 +634,12 @@ static int kdamond_fn(void *data)
 		if (kdamond_need_update_primitive(ctx)) {
 			if (ctx->primitive.update)
 				ctx->primitive.update(ctx);
+			sz_limit = damon_region_sz_limit(ctx);
 		}
 	}
 	damon_for_each_target(t, ctx) {
 		damon_for_each_region_safe(r, next, t)
-			damon_destroy_region(r);
+			damon_destroy_region(r, t);
 	}
 
 	if (ctx->callback.before_terminate &&
-- 
GitLab


From ad6156f8339464ef006ceda3c50a3e6e409d1a02 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:40 -0700
Subject: [PATCH 4782/4878] UPSTREAM: mm/idle_page_tracking: make PG_idle
 reusable

PG_idle and PG_young allow the two PTE Accessed bit users, Idle Page
Tracking and the reclaim logic concurrently work while not interfering
with each other.  That is, when they need to clear the Accessed bit, they
set PG_young to represent the previous state of the bit, respectively.
And when they need to read the bit, if the bit is cleared, they further
read the PG_young to know whether the other has cleared the bit meanwhile
or not.

For yet another user of the PTE Accessed bit, we could add another page
flag, or extend the mechanism to use the flags.  For the DAMON usecase,
however, we don't need to do that just yet.  IDLE_PAGE_TRACKING and DAMON
are mutually exclusive, so there's only ever going to be one user of the
current set of flags.

In this commit, we split out the CONFIG options to allow for the use of
PG_young and PG_idle outside of idle page tracking.

In the next commit, DAMON's reference implementation of the virtual memory
address space monitoring primitives will use it.

[sjpark@amazon.de: set PAGE_EXTENSION for non-64BIT]
  Link: https://lkml.kernel.org/r/20210806095153.6444-1-sj38.park@gmail.com
[akpm@linux-foundation.org: tweak Kconfig text]
[sjpark@amazon.de: hide PAGE_IDLE_FLAG from users]
  Link: https://lkml.kernel.org/r/20210813081238.34705-1-sj38.park@gmail.com

Link: https://lkml.kernel.org/r/20210716081449.22187-5-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 1c676e0d9b1a59b98885b24a0e16a81fe4cc8301)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I4b2c3087b069b0306ab8743402fabcd195d63e54
---
 include/linux/page-flags.h     |  4 ++--
 include/linux/page_ext.h       |  2 +-
 include/linux/page_idle.h      |  6 +++---
 include/trace/events/mmflags.h |  2 +-
 mm/Kconfig                     | 10 +++++++++-
 mm/page_ext.c                  | 12 +++++++++++-
 mm/page_idle.c                 | 10 ----------
 7 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 403a1dd5dbae7..1d2a9a3103da7 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -132,7 +132,7 @@ enum pageflags {
 #ifdef CONFIG_MEMORY_FAILURE
 	PG_hwpoison,		/* hardware poisoned page. Don't touch */
 #endif
-#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
+#if defined(CONFIG_PAGE_IDLE_FLAG) && defined(CONFIG_64BIT)
 	PG_young,
 	PG_idle,
 #endif
@@ -440,7 +440,7 @@ PAGEFLAG_FALSE(HWPoison)
 #define __PG_HWPOISON 0
 #endif
 
-#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
+#if defined(CONFIG_PAGE_IDLE_FLAG) && defined(CONFIG_64BIT)
 TESTPAGEFLAG(Young, young, PF_ANY)
 SETPAGEFLAG(Young, young, PF_ANY)
 TESTCLEARFLAG(Young, young, PF_ANY)
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 874108d2c7ba4..2e64843c14689 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -23,7 +23,7 @@ enum page_ext_flags {
 	/* page migration failed */
 	PAGE_EXT_PINNER_MIGRATION_FAILED,
 #endif
-#if defined(CONFIG_IDLE_PAGE_TRACKING) && !defined(CONFIG_64BIT)
+#if defined(CONFIG_PAGE_IDLE_FLAG) && !defined(CONFIG_64BIT)
 	PAGE_EXT_YOUNG,
 	PAGE_EXT_IDLE,
 #endif
diff --git a/include/linux/page_idle.h b/include/linux/page_idle.h
index 1e894d34bdceb..d8a6aecf99cb9 100644
--- a/include/linux/page_idle.h
+++ b/include/linux/page_idle.h
@@ -6,7 +6,7 @@
 #include <linux/page-flags.h>
 #include <linux/page_ext.h>
 
-#ifdef CONFIG_IDLE_PAGE_TRACKING
+#ifdef CONFIG_PAGE_IDLE_FLAG
 
 #ifdef CONFIG_64BIT
 static inline bool page_is_young(struct page *page)
@@ -106,7 +106,7 @@ static inline void clear_page_idle(struct page *page)
 }
 #endif /* CONFIG_64BIT */
 
-#else /* !CONFIG_IDLE_PAGE_TRACKING */
+#else /* !CONFIG_PAGE_IDLE_FLAG */
 
 static inline bool page_is_young(struct page *page)
 {
@@ -135,6 +135,6 @@ static inline void clear_page_idle(struct page *page)
 {
 }
 
-#endif /* CONFIG_IDLE_PAGE_TRACKING */
+#endif /* CONFIG_PAGE_IDLE_FLAG */
 
 #endif /* _LINUX_MM_PAGE_IDLE_H */
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index d26bfc4951291..12d76932e390e 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -83,7 +83,7 @@
 #define IF_HAVE_PG_HWPOISON(flag,string)
 #endif
 
-#if defined(CONFIG_IDLE_PAGE_TRACKING) && defined(CONFIG_64BIT)
+#if defined(CONFIG_PAGE_IDLE_FLAG) && defined(CONFIG_64BIT)
 #define IF_HAVE_PG_IDLE(flag,string) ,{1UL << flag, string}
 #else
 #define IF_HAVE_PG_IDLE(flag,string)
diff --git a/mm/Kconfig b/mm/Kconfig
index d81f5da2da8b4..27cdf23dd46ed 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -756,10 +756,18 @@ config DEFERRED_STRUCT_PAGE_INIT
 	  lifetime of the system until these kthreads finish the
 	  initialisation.
 
+config PAGE_IDLE_FLAG
+	bool
+	select PAGE_EXTENSION if !64BIT
+	help
+	  This adds PG_idle and PG_young flags to 'struct page'.  PTE Accessed
+	  bit writers can set the state of the bit in the flags so that PTE
+	  Accessed bit readers may avoid disturbance.
+
 config IDLE_PAGE_TRACKING
 	bool "Enable idle page tracking"
 	depends on SYSFS && MMU
-	select PAGE_EXTENSION if !64BIT
+	select PAGE_IDLE_FLAG
 	help
 	  This feature allows to estimate the amount of user pages that have
 	  not been touched during a given period of time. This information can
diff --git a/mm/page_ext.c b/mm/page_ext.c
index 7e44726b35495..e5e31ff1adba5 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -58,11 +58,21 @@
  * can utilize this callback to initialize the state of it correctly.
  */
 
+#if defined(CONFIG_PAGE_IDLE_FLAG) && !defined(CONFIG_64BIT)
+static bool need_page_idle(void)
+{
+	return true;
+}
+struct page_ext_operations page_idle_ops = {
+	.need = need_page_idle,
+};
+#endif
+
 static struct page_ext_operations *page_ext_ops[] = {
 #ifdef CONFIG_PAGE_OWNER
 	&page_owner_ops,
 #endif
-#if defined(CONFIG_IDLE_PAGE_TRACKING) && !defined(CONFIG_64BIT)
+#if defined(CONFIG_PAGE_IDLE_FLAG) && !defined(CONFIG_64BIT)
 	&page_idle_ops,
 #endif
 #ifdef CONFIG_PAGE_PINNER
diff --git a/mm/page_idle.c b/mm/page_idle.c
index 057c61df12dba..144fb4ed961d7 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -211,16 +211,6 @@ static const struct attribute_group page_idle_attr_group = {
 	.name = "page_idle",
 };
 
-#ifndef CONFIG_64BIT
-static bool need_page_idle(void)
-{
-	return true;
-}
-struct page_ext_operations page_idle_ops = {
-	.need = need_page_idle,
-};
-#endif
-
 static int __init page_idle_init(void)
 {
 	int err;
-- 
GitLab


From 75f4f6ebe90544d922af1ee7acc56dc4733a0cf0 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:44 -0700
Subject: [PATCH 4783/4878] UPSTREAM: mm/damon: implement primitives for the
 virtual memory address spaces

This commit introduces a reference implementation of the address space
specific low level primitives for the virtual address space, so that users
of DAMON can easily monitor the data accesses on virtual address spaces of
specific processes by simply configuring the implementation to be used by
DAMON.

The low level primitives for the fundamental access monitoring are defined
in two parts:

1. Identification of the monitoring target address range for the address
   space.
2. Access check of specific address range in the target space.

The reference implementation for the virtual address space does the works
as below.

PTE Accessed-bit Based Access Check
-----------------------------------

The implementation uses PTE Accessed-bit for basic access checks.  That
is, it clears the bit for the next sampling target page and checks whether
it is set again after one sampling period.  This could disturb the reclaim
logic.  DAMON uses ``PG_idle`` and ``PG_young`` page flags to solve the
conflict, as Idle page tracking does.

VMA-based Target Address Range Construction
-------------------------------------------

Only small parts in the super-huge virtual address space of the processes
are mapped to physical memory and accessed.  Thus, tracking the unmapped
address regions is just wasteful.  However, because DAMON can deal with
some level of noise using the adaptive regions adjustment mechanism,
tracking every mapping is not strictly required but could even incur a
high overhead in some cases.  That said, too huge unmapped areas inside
the monitoring target should be removed to not take the time for the
adaptive mechanism.

For the reason, this implementation converts the complex mappings to three
distinct regions that cover every mapped area of the address space.  Also,
the two gaps between the three regions are the two biggest unmapped areas
in the given address space.  The two biggest unmapped areas would be the
gap between the heap and the uppermost mmap()-ed region, and the gap
between the lowermost mmap()-ed region and the stack in most of the cases.
Because these gaps are exceptionally huge in usual address spaces,
excluding these will be sufficient to make a reasonable trade-off.  Below
shows this in detail::

    <heap>
    <BIG UNMAPPED REGION 1>
    <uppermost mmap()-ed region>
    (small mmap()-ed regions and munmap()-ed regions)
    <lowermost mmap()-ed region>
    <BIG UNMAPPED REGION 2>
    <stack>

[akpm@linux-foundation.org: mm/damon/vaddr.c needs highmem.h for kunmap_atomic()]
[sjpark@amazon.de: remove unnecessary PAGE_EXTENSION setup]
  Link: https://lkml.kernel.org/r/20210806095153.6444-2-sj38.park@gmail.com
[sjpark@amazon.de: safely walk page table]
  Link: https://lkml.kernel.org/r/20210831161800.29419-1-sj38.park@gmail.com

Link: https://lkml.kernel.org/r/20210716081449.22187-6-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Leonard Foerster <foersleo@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 3f49584b262cf8f42b25f4c1ad9f5bfd3bdc1bca)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ib7d134932b1dd20cd926968991654d71717c197d
---
 include/linux/damon.h |  13 +
 mm/damon/Kconfig      |   8 +
 mm/damon/Makefile     |   1 +
 mm/damon/vaddr.c      | 665 ++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 687 insertions(+)
 create mode 100644 mm/damon/vaddr.c

diff --git a/include/linux/damon.h b/include/linux/damon.h
index ce2a84b26cd74..edb350e52b934 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -249,4 +249,17 @@ int damon_stop(struct damon_ctx **ctxs, int nr_ctxs);
 
 #endif	/* CONFIG_DAMON */
 
+#ifdef CONFIG_DAMON_VADDR
+
+/* Monitoring primitives for virtual memory address spaces */
+void damon_va_init(struct damon_ctx *ctx);
+void damon_va_update(struct damon_ctx *ctx);
+void damon_va_prepare_access_checks(struct damon_ctx *ctx);
+unsigned int damon_va_check_accesses(struct damon_ctx *ctx);
+bool damon_va_target_valid(void *t);
+void damon_va_cleanup(struct damon_ctx *ctx);
+void damon_va_set_primitives(struct damon_ctx *ctx);
+
+#endif	/* CONFIG_DAMON_VADDR */
+
 #endif	/* _DAMON_H */
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index d00e99ac1a154..5cbb5db541587 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -12,4 +12,12 @@ config DAMON
 	  See https://damonitor.github.io/doc/html/latest-damon/index.html for
 	  more information.
 
+config DAMON_VADDR
+	bool "Data access monitoring primitives for virtual address spaces"
+	depends on DAMON && MMU
+	select PAGE_IDLE_FLAG
+	help
+	  This builds the default data access monitoring primitives for DAMON
+	  that works for virtual address spaces.
+
 endmenu
diff --git a/mm/damon/Makefile b/mm/damon/Makefile
index 4fd2edb4becfb..6ebbd08aed673 100644
--- a/mm/damon/Makefile
+++ b/mm/damon/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_DAMON)		:= core.o
+obj-$(CONFIG_DAMON_VADDR)	+= vaddr.o
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
new file mode 100644
index 0000000000000..897aa8cf96c83
--- /dev/null
+++ b/mm/damon/vaddr.c
@@ -0,0 +1,665 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DAMON Primitives for Virtual Address Spaces
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#define pr_fmt(fmt) "damon-va: " fmt
+
+#include <linux/damon.h>
+#include <linux/hugetlb.h>
+#include <linux/mm.h>
+#include <linux/mmu_notifier.h>
+#include <linux/highmem.h>
+#include <linux/page_idle.h>
+#include <linux/pagewalk.h>
+#include <linux/random.h>
+#include <linux/sched/mm.h>
+#include <linux/slab.h>
+
+/* Get a random number in [l, r) */
+#define damon_rand(l, r) (l + prandom_u32_max(r - l))
+
+/*
+ * 't->id' should be the pointer to the relevant 'struct pid' having reference
+ * count.  Caller must put the returned task, unless it is NULL.
+ */
+#define damon_get_task_struct(t) \
+	(get_pid_task((struct pid *)t->id, PIDTYPE_PID))
+
+/*
+ * Get the mm_struct of the given target
+ *
+ * Caller _must_ put the mm_struct after use, unless it is NULL.
+ *
+ * Returns the mm_struct of the target on success, NULL on failure
+ */
+static struct mm_struct *damon_get_mm(struct damon_target *t)
+{
+	struct task_struct *task;
+	struct mm_struct *mm;
+
+	task = damon_get_task_struct(t);
+	if (!task)
+		return NULL;
+
+	mm = get_task_mm(task);
+	put_task_struct(task);
+	return mm;
+}
+
+/*
+ * Functions for the initial monitoring target regions construction
+ */
+
+/*
+ * Size-evenly split a region into 'nr_pieces' small regions
+ *
+ * Returns 0 on success, or negative error code otherwise.
+ */
+static int damon_va_evenly_split_region(struct damon_target *t,
+		struct damon_region *r, unsigned int nr_pieces)
+{
+	unsigned long sz_orig, sz_piece, orig_end;
+	struct damon_region *n = NULL, *next;
+	unsigned long start;
+
+	if (!r || !nr_pieces)
+		return -EINVAL;
+
+	orig_end = r->ar.end;
+	sz_orig = r->ar.end - r->ar.start;
+	sz_piece = ALIGN_DOWN(sz_orig / nr_pieces, DAMON_MIN_REGION);
+
+	if (!sz_piece)
+		return -EINVAL;
+
+	r->ar.end = r->ar.start + sz_piece;
+	next = damon_next_region(r);
+	for (start = r->ar.end; start + sz_piece <= orig_end;
+			start += sz_piece) {
+		n = damon_new_region(start, start + sz_piece);
+		if (!n)
+			return -ENOMEM;
+		damon_insert_region(n, r, next, t);
+		r = n;
+	}
+	/* complement last region for possible rounding error */
+	if (n)
+		n->ar.end = orig_end;
+
+	return 0;
+}
+
+static unsigned long sz_range(struct damon_addr_range *r)
+{
+	return r->end - r->start;
+}
+
+static void swap_ranges(struct damon_addr_range *r1,
+			struct damon_addr_range *r2)
+{
+	struct damon_addr_range tmp;
+
+	tmp = *r1;
+	*r1 = *r2;
+	*r2 = tmp;
+}
+
+/*
+ * Find three regions separated by two biggest unmapped regions
+ *
+ * vma		the head vma of the target address space
+ * regions	an array of three address ranges that results will be saved
+ *
+ * This function receives an address space and finds three regions in it which
+ * separated by the two biggest unmapped regions in the space.  Please refer to
+ * below comments of '__damon_va_init_regions()' function to know why this is
+ * necessary.
+ *
+ * Returns 0 if success, or negative error code otherwise.
+ */
+static int __damon_va_three_regions(struct vm_area_struct *vma,
+				       struct damon_addr_range regions[3])
+{
+	struct damon_addr_range gap = {0}, first_gap = {0}, second_gap = {0};
+	struct vm_area_struct *last_vma = NULL;
+	unsigned long start = 0;
+	struct rb_root rbroot;
+
+	/* Find two biggest gaps so that first_gap > second_gap > others */
+	for (; vma; vma = vma->vm_next) {
+		if (!last_vma) {
+			start = vma->vm_start;
+			goto next;
+		}
+
+		if (vma->rb_subtree_gap <= sz_range(&second_gap)) {
+			rbroot.rb_node = &vma->vm_rb;
+			vma = rb_entry(rb_last(&rbroot),
+					struct vm_area_struct, vm_rb);
+			goto next;
+		}
+
+		gap.start = last_vma->vm_end;
+		gap.end = vma->vm_start;
+		if (sz_range(&gap) > sz_range(&second_gap)) {
+			swap_ranges(&gap, &second_gap);
+			if (sz_range(&second_gap) > sz_range(&first_gap))
+				swap_ranges(&second_gap, &first_gap);
+		}
+next:
+		last_vma = vma;
+	}
+
+	if (!sz_range(&second_gap) || !sz_range(&first_gap))
+		return -EINVAL;
+
+	/* Sort the two biggest gaps by address */
+	if (first_gap.start > second_gap.start)
+		swap_ranges(&first_gap, &second_gap);
+
+	/* Store the result */
+	regions[0].start = ALIGN(start, DAMON_MIN_REGION);
+	regions[0].end = ALIGN(first_gap.start, DAMON_MIN_REGION);
+	regions[1].start = ALIGN(first_gap.end, DAMON_MIN_REGION);
+	regions[1].end = ALIGN(second_gap.start, DAMON_MIN_REGION);
+	regions[2].start = ALIGN(second_gap.end, DAMON_MIN_REGION);
+	regions[2].end = ALIGN(last_vma->vm_end, DAMON_MIN_REGION);
+
+	return 0;
+}
+
+/*
+ * Get the three regions in the given target (task)
+ *
+ * Returns 0 on success, negative error code otherwise.
+ */
+static int damon_va_three_regions(struct damon_target *t,
+				struct damon_addr_range regions[3])
+{
+	struct mm_struct *mm;
+	int rc;
+
+	mm = damon_get_mm(t);
+	if (!mm)
+		return -EINVAL;
+
+	mmap_read_lock(mm);
+	rc = __damon_va_three_regions(mm->mmap, regions);
+	mmap_read_unlock(mm);
+
+	mmput(mm);
+	return rc;
+}
+
+/*
+ * Initialize the monitoring target regions for the given target (task)
+ *
+ * t	the given target
+ *
+ * Because only a number of small portions of the entire address space
+ * is actually mapped to the memory and accessed, monitoring the unmapped
+ * regions is wasteful.  That said, because we can deal with small noises,
+ * tracking every mapping is not strictly required but could even incur a high
+ * overhead if the mapping frequently changes or the number of mappings is
+ * high.  The adaptive regions adjustment mechanism will further help to deal
+ * with the noise by simply identifying the unmapped areas as a region that
+ * has no access.  Moreover, applying the real mappings that would have many
+ * unmapped areas inside will make the adaptive mechanism quite complex.  That
+ * said, too huge unmapped areas inside the monitoring target should be removed
+ * to not take the time for the adaptive mechanism.
+ *
+ * For the reason, we convert the complex mappings to three distinct regions
+ * that cover every mapped area of the address space.  Also the two gaps
+ * between the three regions are the two biggest unmapped areas in the given
+ * address space.  In detail, this function first identifies the start and the
+ * end of the mappings and the two biggest unmapped areas of the address space.
+ * Then, it constructs the three regions as below:
+ *
+ *     [mappings[0]->start, big_two_unmapped_areas[0]->start)
+ *     [big_two_unmapped_areas[0]->end, big_two_unmapped_areas[1]->start)
+ *     [big_two_unmapped_areas[1]->end, mappings[nr_mappings - 1]->end)
+ *
+ * As usual memory map of processes is as below, the gap between the heap and
+ * the uppermost mmap()-ed region, and the gap between the lowermost mmap()-ed
+ * region and the stack will be two biggest unmapped regions.  Because these
+ * gaps are exceptionally huge areas in usual address space, excluding these
+ * two biggest unmapped regions will be sufficient to make a trade-off.
+ *
+ *   <heap>
+ *   <BIG UNMAPPED REGION 1>
+ *   <uppermost mmap()-ed region>
+ *   (other mmap()-ed regions and small unmapped regions)
+ *   <lowermost mmap()-ed region>
+ *   <BIG UNMAPPED REGION 2>
+ *   <stack>
+ */
+static void __damon_va_init_regions(struct damon_ctx *ctx,
+				     struct damon_target *t)
+{
+	struct damon_region *r;
+	struct damon_addr_range regions[3];
+	unsigned long sz = 0, nr_pieces;
+	int i;
+
+	if (damon_va_three_regions(t, regions)) {
+		pr_err("Failed to get three regions of target %lu\n", t->id);
+		return;
+	}
+
+	for (i = 0; i < 3; i++)
+		sz += regions[i].end - regions[i].start;
+	if (ctx->min_nr_regions)
+		sz /= ctx->min_nr_regions;
+	if (sz < DAMON_MIN_REGION)
+		sz = DAMON_MIN_REGION;
+
+	/* Set the initial three regions of the target */
+	for (i = 0; i < 3; i++) {
+		r = damon_new_region(regions[i].start, regions[i].end);
+		if (!r) {
+			pr_err("%d'th init region creation failed\n", i);
+			return;
+		}
+		damon_add_region(r, t);
+
+		nr_pieces = (regions[i].end - regions[i].start) / sz;
+		damon_va_evenly_split_region(t, r, nr_pieces);
+	}
+}
+
+/* Initialize '->regions_list' of every target (task) */
+void damon_va_init(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+
+	damon_for_each_target(t, ctx) {
+		/* the user may set the target regions as they want */
+		if (!damon_nr_regions(t))
+			__damon_va_init_regions(ctx, t);
+	}
+}
+
+/*
+ * Functions for the dynamic monitoring target regions update
+ */
+
+/*
+ * Check whether a region is intersecting an address range
+ *
+ * Returns true if it is.
+ */
+static bool damon_intersect(struct damon_region *r, struct damon_addr_range *re)
+{
+	return !(r->ar.end <= re->start || re->end <= r->ar.start);
+}
+
+/*
+ * Update damon regions for the three big regions of the given target
+ *
+ * t		the given target
+ * bregions	the three big regions of the target
+ */
+static void damon_va_apply_three_regions(struct damon_target *t,
+		struct damon_addr_range bregions[3])
+{
+	struct damon_region *r, *next;
+	unsigned int i = 0;
+
+	/* Remove regions which are not in the three big regions now */
+	damon_for_each_region_safe(r, next, t) {
+		for (i = 0; i < 3; i++) {
+			if (damon_intersect(r, &bregions[i]))
+				break;
+		}
+		if (i == 3)
+			damon_destroy_region(r, t);
+	}
+
+	/* Adjust intersecting regions to fit with the three big regions */
+	for (i = 0; i < 3; i++) {
+		struct damon_region *first = NULL, *last;
+		struct damon_region *newr;
+		struct damon_addr_range *br;
+
+		br = &bregions[i];
+		/* Get the first and last regions which intersects with br */
+		damon_for_each_region(r, t) {
+			if (damon_intersect(r, br)) {
+				if (!first)
+					first = r;
+				last = r;
+			}
+			if (r->ar.start >= br->end)
+				break;
+		}
+		if (!first) {
+			/* no damon_region intersects with this big region */
+			newr = damon_new_region(
+					ALIGN_DOWN(br->start,
+						DAMON_MIN_REGION),
+					ALIGN(br->end, DAMON_MIN_REGION));
+			if (!newr)
+				continue;
+			damon_insert_region(newr, damon_prev_region(r), r, t);
+		} else {
+			first->ar.start = ALIGN_DOWN(br->start,
+					DAMON_MIN_REGION);
+			last->ar.end = ALIGN(br->end, DAMON_MIN_REGION);
+		}
+	}
+}
+
+/*
+ * Update regions for current memory mappings
+ */
+void damon_va_update(struct damon_ctx *ctx)
+{
+	struct damon_addr_range three_regions[3];
+	struct damon_target *t;
+
+	damon_for_each_target(t, ctx) {
+		if (damon_va_three_regions(t, three_regions))
+			continue;
+		damon_va_apply_three_regions(t, three_regions);
+	}
+}
+
+/*
+ * Get an online page for a pfn if it's in the LRU list.  Otherwise, returns
+ * NULL.
+ *
+ * The body of this function is stolen from the 'page_idle_get_page()'.  We
+ * steal rather than reuse it because the code is quite simple.
+ */
+static struct page *damon_get_page(unsigned long pfn)
+{
+	struct page *page = pfn_to_online_page(pfn);
+
+	if (!page || !PageLRU(page) || !get_page_unless_zero(page))
+		return NULL;
+
+	if (unlikely(!PageLRU(page))) {
+		put_page(page);
+		page = NULL;
+	}
+	return page;
+}
+
+static void damon_ptep_mkold(pte_t *pte, struct mm_struct *mm,
+			     unsigned long addr)
+{
+	bool referenced = false;
+	struct page *page = damon_get_page(pte_pfn(*pte));
+
+	if (!page)
+		return;
+
+	if (pte_young(*pte)) {
+		referenced = true;
+		*pte = pte_mkold(*pte);
+	}
+
+#ifdef CONFIG_MMU_NOTIFIER
+	if (mmu_notifier_clear_young(mm, addr, addr + PAGE_SIZE))
+		referenced = true;
+#endif /* CONFIG_MMU_NOTIFIER */
+
+	if (referenced)
+		set_page_young(page);
+
+	set_page_idle(page);
+	put_page(page);
+}
+
+static void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm,
+			     unsigned long addr)
+{
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	bool referenced = false;
+	struct page *page = damon_get_page(pmd_pfn(*pmd));
+
+	if (!page)
+		return;
+
+	if (pmd_young(*pmd)) {
+		referenced = true;
+		*pmd = pmd_mkold(*pmd);
+	}
+
+#ifdef CONFIG_MMU_NOTIFIER
+	if (mmu_notifier_clear_young(mm, addr,
+				addr + ((1UL) << HPAGE_PMD_SHIFT)))
+		referenced = true;
+#endif /* CONFIG_MMU_NOTIFIER */
+
+	if (referenced)
+		set_page_young(page);
+
+	set_page_idle(page);
+	put_page(page);
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+}
+
+static int damon_mkold_pmd_entry(pmd_t *pmd, unsigned long addr,
+		unsigned long next, struct mm_walk *walk)
+{
+	pte_t *pte;
+	spinlock_t *ptl;
+
+	if (pmd_huge(*pmd)) {
+		ptl = pmd_lock(walk->mm, pmd);
+		if (pmd_huge(*pmd)) {
+			damon_pmdp_mkold(pmd, walk->mm, addr);
+			spin_unlock(ptl);
+			return 0;
+		}
+		spin_unlock(ptl);
+	}
+
+	if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
+		return 0;
+	pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
+	if (!pte_present(*pte))
+		goto out;
+	damon_ptep_mkold(pte, walk->mm, addr);
+out:
+	pte_unmap_unlock(pte, ptl);
+	return 0;
+}
+
+static struct mm_walk_ops damon_mkold_ops = {
+	.pmd_entry = damon_mkold_pmd_entry,
+};
+
+static void damon_va_mkold(struct mm_struct *mm, unsigned long addr)
+{
+	mmap_read_lock(mm);
+	walk_page_range(mm, addr, addr + 1, &damon_mkold_ops, NULL);
+	mmap_read_unlock(mm);
+}
+
+/*
+ * Functions for the access checking of the regions
+ */
+
+static void damon_va_prepare_access_check(struct damon_ctx *ctx,
+			struct mm_struct *mm, struct damon_region *r)
+{
+	r->sampling_addr = damon_rand(r->ar.start, r->ar.end);
+
+	damon_va_mkold(mm, r->sampling_addr);
+}
+
+void damon_va_prepare_access_checks(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	struct mm_struct *mm;
+	struct damon_region *r;
+
+	damon_for_each_target(t, ctx) {
+		mm = damon_get_mm(t);
+		if (!mm)
+			continue;
+		damon_for_each_region(r, t)
+			damon_va_prepare_access_check(ctx, mm, r);
+		mmput(mm);
+	}
+}
+
+struct damon_young_walk_private {
+	unsigned long *page_sz;
+	bool young;
+};
+
+static int damon_young_pmd_entry(pmd_t *pmd, unsigned long addr,
+		unsigned long next, struct mm_walk *walk)
+{
+	pte_t *pte;
+	spinlock_t *ptl;
+	struct page *page;
+	struct damon_young_walk_private *priv = walk->private;
+
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	if (pmd_huge(*pmd)) {
+		ptl = pmd_lock(walk->mm, pmd);
+		if (!pmd_huge(*pmd)) {
+			spin_unlock(ptl);
+			goto regular_page;
+		}
+		page = damon_get_page(pmd_pfn(*pmd));
+		if (!page)
+			goto huge_out;
+		if (pmd_young(*pmd) || !page_is_idle(page) ||
+					mmu_notifier_test_young(walk->mm,
+						addr)) {
+			*priv->page_sz = ((1UL) << HPAGE_PMD_SHIFT);
+			priv->young = true;
+		}
+		put_page(page);
+huge_out:
+		spin_unlock(ptl);
+		return 0;
+	}
+
+regular_page:
+#endif	/* CONFIG_TRANSPARENT_HUGEPAGE */
+
+	if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
+		return -EINVAL;
+	pte = pte_offset_map_lock(walk->mm, pmd, addr, &ptl);
+	if (!pte_present(*pte))
+		goto out;
+	page = damon_get_page(pte_pfn(*pte));
+	if (!page)
+		goto out;
+	if (pte_young(*pte) || !page_is_idle(page) ||
+			mmu_notifier_test_young(walk->mm, addr)) {
+		*priv->page_sz = PAGE_SIZE;
+		priv->young = true;
+	}
+	put_page(page);
+out:
+	pte_unmap_unlock(pte, ptl);
+	return 0;
+}
+
+static struct mm_walk_ops damon_young_ops = {
+	.pmd_entry = damon_young_pmd_entry,
+};
+
+static bool damon_va_young(struct mm_struct *mm, unsigned long addr,
+		unsigned long *page_sz)
+{
+	struct damon_young_walk_private arg = {
+		.page_sz = page_sz,
+		.young = false,
+	};
+
+	mmap_read_lock(mm);
+	walk_page_range(mm, addr, addr + 1, &damon_young_ops, &arg);
+	mmap_read_unlock(mm);
+	return arg.young;
+}
+
+/*
+ * Check whether the region was accessed after the last preparation
+ *
+ * mm	'mm_struct' for the given virtual address space
+ * r	the region to be checked
+ */
+static void damon_va_check_access(struct damon_ctx *ctx,
+			       struct mm_struct *mm, struct damon_region *r)
+{
+	static struct mm_struct *last_mm;
+	static unsigned long last_addr;
+	static unsigned long last_page_sz = PAGE_SIZE;
+	static bool last_accessed;
+
+	/* If the region is in the last checked page, reuse the result */
+	if (mm == last_mm && (ALIGN_DOWN(last_addr, last_page_sz) ==
+				ALIGN_DOWN(r->sampling_addr, last_page_sz))) {
+		if (last_accessed)
+			r->nr_accesses++;
+		return;
+	}
+
+	last_accessed = damon_va_young(mm, r->sampling_addr, &last_page_sz);
+	if (last_accessed)
+		r->nr_accesses++;
+
+	last_mm = mm;
+	last_addr = r->sampling_addr;
+}
+
+unsigned int damon_va_check_accesses(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	struct mm_struct *mm;
+	struct damon_region *r;
+	unsigned int max_nr_accesses = 0;
+
+	damon_for_each_target(t, ctx) {
+		mm = damon_get_mm(t);
+		if (!mm)
+			continue;
+		damon_for_each_region(r, t) {
+			damon_va_check_access(ctx, mm, r);
+			max_nr_accesses = max(r->nr_accesses, max_nr_accesses);
+		}
+		mmput(mm);
+	}
+
+	return max_nr_accesses;
+}
+
+/*
+ * Functions for the target validity check and cleanup
+ */
+
+bool damon_va_target_valid(void *target)
+{
+	struct damon_target *t = target;
+	struct task_struct *task;
+
+	task = damon_get_task_struct(t);
+	if (task) {
+		put_task_struct(task);
+		return true;
+	}
+
+	return false;
+}
+
+void damon_va_set_primitives(struct damon_ctx *ctx)
+{
+	ctx->primitive.init = damon_va_init;
+	ctx->primitive.update = damon_va_update;
+	ctx->primitive.prepare_access_checks = damon_va_prepare_access_checks;
+	ctx->primitive.check_accesses = damon_va_check_accesses;
+	ctx->primitive.reset_aggregated = NULL;
+	ctx->primitive.target_valid = damon_va_target_valid;
+	ctx->primitive.cleanup = NULL;
+}
-- 
GitLab


From e415cf98cbcba30f7f03577c4d31d3660c5c7199 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:48 -0700
Subject: [PATCH 4784/4878] UPSTREAM: mm/damon: add a tracepoint

This commit adds a tracepoint for DAMON.  It traces the monitoring results
of each region for each aggregation interval.  Using this, DAMON can
easily integrated with tracepoints supporting tools such as perf.

Link: https://lkml.kernel.org/r/20210716081449.22187-7-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Leonard Foerster <foersleo@amazon.de>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 2fcb93629ad8911c846cdc44521c746e53cc4e6d)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I502a57938f7aa60c55b05525b45e50ddb1aeda65
---
 include/trace/events/damon.h | 43 ++++++++++++++++++++++++++++++++++++
 mm/damon/core.c              |  7 +++++-
 2 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 include/trace/events/damon.h

diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
new file mode 100644
index 0000000000000..2f422f4f1fb9e
--- /dev/null
+++ b/include/trace/events/damon.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM damon
+
+#if !defined(_TRACE_DAMON_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_DAMON_H
+
+#include <linux/damon.h>
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(damon_aggregated,
+
+	TP_PROTO(struct damon_target *t, struct damon_region *r,
+		unsigned int nr_regions),
+
+	TP_ARGS(t, r, nr_regions),
+
+	TP_STRUCT__entry(
+		__field(unsigned long, target_id)
+		__field(unsigned int, nr_regions)
+		__field(unsigned long, start)
+		__field(unsigned long, end)
+		__field(unsigned int, nr_accesses)
+	),
+
+	TP_fast_assign(
+		__entry->target_id = t->id;
+		__entry->nr_regions = nr_regions;
+		__entry->start = r->ar.start;
+		__entry->end = r->ar.end;
+		__entry->nr_accesses = r->nr_accesses;
+	),
+
+	TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u",
+			__entry->target_id, __entry->nr_regions,
+			__entry->start, __entry->end, __entry->nr_accesses)
+);
+
+#endif /* _TRACE_DAMON_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 28a2c78914faa..ee24d64e8019e 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -13,6 +13,9 @@
 #include <linux/random.h>
 #include <linux/slab.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/damon.h>
+
 /* Get a random number in [l, r) */
 #define damon_rand(l, r) (l + prandom_u32_max(r - l))
 
@@ -387,8 +390,10 @@ static void kdamond_reset_aggregated(struct damon_ctx *c)
 	damon_for_each_target(t, c) {
 		struct damon_region *r;
 
-		damon_for_each_region(r, t)
+		damon_for_each_region(r, t) {
+			trace_damon_aggregated(t, r, damon_nr_regions(t));
 			r->nr_accesses = 0;
+		}
 	}
 }
 
-- 
GitLab


From c8ecb4f7a184a55ce1a79584ed25b3c1c2de21e9 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:53 -0700
Subject: [PATCH 4785/4878] UPSTREAM: mm/damon: implement a debugfs-based user
 space interface

DAMON is designed to be used by kernel space code such as the memory
management subsystems, and therefore it provides only kernel space API.
That said, letting the user space control DAMON could provide some
benefits to them.  For example, it will allow user space to analyze their
specific workloads and make their own special optimizations.

For such cases, this commit implements a simple DAMON application kernel
module, namely 'damon-dbgfs', which merely wraps the DAMON api and exports
those to the user space via the debugfs.

'damon-dbgfs' exports three files, ``attrs``, ``target_ids``, and
``monitor_on`` under its debugfs directory, ``<debugfs>/damon/``.

Attributes
----------

Users can read and write the ``sampling interval``, ``aggregation
interval``, ``regions update interval``, and min/max number of monitoring
target regions by reading from and writing to the ``attrs`` file.  For
example, below commands set those values to 5 ms, 100 ms, 1,000 ms, 10,
1000 and check it again::

    # cd <debugfs>/damon
    # echo 5000 100000 1000000 10 1000 > attrs
    # cat attrs
    5000 100000 1000000 10 1000

Target IDs
----------

Some types of address spaces supports multiple monitoring target.  For
example, the virtual memory address spaces monitoring can have multiple
processes as the monitoring targets.  Users can set the targets by writing
relevant id values of the targets to, and get the ids of the current
targets by reading from the ``target_ids`` file.  In case of the virtual
address spaces monitoring, the values should be pids of the monitoring
target processes.  For example, below commands set processes having pids
42 and 4242 as the monitoring targets and check it again::

    # cd <debugfs>/damon
    # echo 42 4242 > target_ids
    # cat target_ids
    42 4242

Note that setting the target ids doesn't start the monitoring.

Turning On/Off
--------------

Setting the files as described above doesn't incur effect unless you
explicitly start the monitoring.  You can start, stop, and check the
current status of the monitoring by writing to and reading from the
``monitor_on`` file.  Writing ``on`` to the file starts the monitoring of
the targets with the attributes.  Writing ``off`` to the file stops those.
DAMON also stops if every targets are invalidated (in case of the virtual
memory monitoring, target processes are invalidated when terminated).
Below example commands turn on, off, and check the status of DAMON::

    # cd <debugfs>/damon
    # echo on > monitor_on
    # echo off > monitor_on
    # cat monitor_on
    off

Please note that you cannot write to the above-mentioned debugfs files
while the monitoring is turned on.  If you write to the files while DAMON
is running, an error code such as ``-EBUSY`` will be returned.

[akpm@linux-foundation.org: remove unneeded "alloc failed" printks]
[akpm@linux-foundation.org: replace macro with static inline]

Link: https://lkml.kernel.org/r/20210716081449.22187-8-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Leonard Foerster <foersleo@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 4bc05954d0076655cfaf6f0135585bdc20cd6b11)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I99664d4372dc5c510d7e16ffe384345e52579b0e
---
 include/linux/damon.h |   3 +
 mm/damon/Kconfig      |   9 +
 mm/damon/Makefile     |   1 +
 mm/damon/core.c       |  47 +++++
 mm/damon/dbgfs.c      | 397 ++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 457 insertions(+)
 create mode 100644 mm/damon/dbgfs.c

diff --git a/include/linux/damon.h b/include/linux/damon.h
index edb350e52b934..d68b67b8d458d 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -240,9 +240,12 @@ unsigned int damon_nr_regions(struct damon_target *t);
 
 struct damon_ctx *damon_new_ctx(void);
 void damon_destroy_ctx(struct damon_ctx *ctx);
+int damon_set_targets(struct damon_ctx *ctx,
+		unsigned long *ids, ssize_t nr_ids);
 int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
 		unsigned long aggr_int, unsigned long primitive_upd_int,
 		unsigned long min_nr_reg, unsigned long max_nr_reg);
+int damon_nr_running_ctxs(void);
 
 int damon_start(struct damon_ctx **ctxs, int nr_ctxs);
 int damon_stop(struct damon_ctx **ctxs, int nr_ctxs);
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 5cbb5db541587..c8e3dba6fb4cf 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -20,4 +20,13 @@ config DAMON_VADDR
 	  This builds the default data access monitoring primitives for DAMON
 	  that works for virtual address spaces.
 
+config DAMON_DBGFS
+	bool "DAMON debugfs interface"
+	depends on DAMON_VADDR && DEBUG_FS
+	help
+	  This builds the debugfs interface for DAMON.  The user space admins
+	  can use the interface for arbitrary data access monitoring.
+
+	  If unsure, say N.
+
 endmenu
diff --git a/mm/damon/Makefile b/mm/damon/Makefile
index 6ebbd08aed673..fed4be3bace3e 100644
--- a/mm/damon/Makefile
+++ b/mm/damon/Makefile
@@ -2,3 +2,4 @@
 
 obj-$(CONFIG_DAMON)		:= core.o
 obj-$(CONFIG_DAMON_VADDR)	+= vaddr.o
+obj-$(CONFIG_DAMON_DBGFS)	+= dbgfs.o
diff --git a/mm/damon/core.c b/mm/damon/core.c
index ee24d64e8019e..59033488402e8 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -171,6 +171,39 @@ void damon_destroy_ctx(struct damon_ctx *ctx)
 	kfree(ctx);
 }
 
+/**
+ * damon_set_targets() - Set monitoring targets.
+ * @ctx:	monitoring context
+ * @ids:	array of target ids
+ * @nr_ids:	number of entries in @ids
+ *
+ * This function should not be called while the kdamond is running.
+ *
+ * Return: 0 on success, negative error code otherwise.
+ */
+int damon_set_targets(struct damon_ctx *ctx,
+		      unsigned long *ids, ssize_t nr_ids)
+{
+	ssize_t i;
+	struct damon_target *t, *next;
+
+	damon_destroy_targets(ctx);
+
+	for (i = 0; i < nr_ids; i++) {
+		t = damon_new_target(ids[i]);
+		if (!t) {
+			pr_err("Failed to alloc damon_target\n");
+			/* The caller should do cleanup of the ids itself */
+			damon_for_each_target_safe(t, next, ctx)
+				damon_destroy_target(t);
+			return -ENOMEM;
+		}
+		damon_add_target(ctx, t);
+	}
+
+	return 0;
+}
+
 /**
  * damon_set_attrs() - Set attributes for the monitoring.
  * @ctx:		monitoring context
@@ -209,6 +242,20 @@ int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
 	return 0;
 }
 
+/**
+ * damon_nr_running_ctxs() - Return number of currently running contexts.
+ */
+int damon_nr_running_ctxs(void)
+{
+	int nr_ctxs;
+
+	mutex_lock(&damon_lock);
+	nr_ctxs = nr_running_ctxs;
+	mutex_unlock(&damon_lock);
+
+	return nr_ctxs;
+}
+
 /* Returns the size upper limit for each monitoring region */
 static unsigned long damon_region_sz_limit(struct damon_ctx *ctx)
 {
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
new file mode 100644
index 0000000000000..d2e0a547eb3f4
--- /dev/null
+++ b/mm/damon/dbgfs.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DAMON Debugfs Interface
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#define pr_fmt(fmt) "damon-dbgfs: " fmt
+
+#include <linux/damon.h>
+#include <linux/debugfs.h>
+#include <linux/file.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/page_idle.h>
+#include <linux/slab.h>
+
+static struct damon_ctx **dbgfs_ctxs;
+static int dbgfs_nr_ctxs;
+static struct dentry **dbgfs_dirs;
+
+/*
+ * Returns non-empty string on success, negative error code otherwise.
+ */
+static char *user_input_str(const char __user *buf, size_t count, loff_t *ppos)
+{
+	char *kbuf;
+	ssize_t ret;
+
+	/* We do not accept continuous write */
+	if (*ppos)
+		return ERR_PTR(-EINVAL);
+
+	kbuf = kmalloc(count + 1, GFP_KERNEL);
+	if (!kbuf)
+		return ERR_PTR(-ENOMEM);
+
+	ret = simple_write_to_buffer(kbuf, count + 1, ppos, buf, count);
+	if (ret != count) {
+		kfree(kbuf);
+		return ERR_PTR(-EIO);
+	}
+	kbuf[ret] = '\0';
+
+	return kbuf;
+}
+
+static ssize_t dbgfs_attrs_read(struct file *file,
+		char __user *buf, size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char kbuf[128];
+	int ret;
+
+	mutex_lock(&ctx->kdamond_lock);
+	ret = scnprintf(kbuf, ARRAY_SIZE(kbuf), "%lu %lu %lu %lu %lu\n",
+			ctx->sample_interval, ctx->aggr_interval,
+			ctx->primitive_update_interval, ctx->min_nr_regions,
+			ctx->max_nr_regions);
+	mutex_unlock(&ctx->kdamond_lock);
+
+	return simple_read_from_buffer(buf, count, ppos, kbuf, ret);
+}
+
+static ssize_t dbgfs_attrs_write(struct file *file,
+		const char __user *buf, size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	unsigned long s, a, r, minr, maxr;
+	char *kbuf;
+	ssize_t ret = count;
+	int err;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	if (sscanf(kbuf, "%lu %lu %lu %lu %lu",
+				&s, &a, &r, &minr, &maxr) != 5) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond) {
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	err = damon_set_attrs(ctx, s, a, r, minr, maxr);
+	if (err)
+		ret = err;
+unlock_out:
+	mutex_unlock(&ctx->kdamond_lock);
+out:
+	kfree(kbuf);
+	return ret;
+}
+
+static inline bool targetid_is_pid(const struct damon_ctx *ctx)
+{
+	return ctx->primitive.target_valid == damon_va_target_valid;
+}
+
+static ssize_t sprint_target_ids(struct damon_ctx *ctx, char *buf, ssize_t len)
+{
+	struct damon_target *t;
+	unsigned long id;
+	int written = 0;
+	int rc;
+
+	damon_for_each_target(t, ctx) {
+		id = t->id;
+		if (targetid_is_pid(ctx))
+			/* Show pid numbers to debugfs users */
+			id = (unsigned long)pid_vnr((struct pid *)id);
+
+		rc = scnprintf(&buf[written], len - written, "%lu ", id);
+		if (!rc)
+			return -ENOMEM;
+		written += rc;
+	}
+	if (written)
+		written -= 1;
+	written += scnprintf(&buf[written], len - written, "\n");
+	return written;
+}
+
+static ssize_t dbgfs_target_ids_read(struct file *file,
+		char __user *buf, size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	ssize_t len;
+	char ids_buf[320];
+
+	mutex_lock(&ctx->kdamond_lock);
+	len = sprint_target_ids(ctx, ids_buf, 320);
+	mutex_unlock(&ctx->kdamond_lock);
+	if (len < 0)
+		return len;
+
+	return simple_read_from_buffer(buf, count, ppos, ids_buf, len);
+}
+
+/*
+ * Converts a string into an array of unsigned long integers
+ *
+ * Returns an array of unsigned long integers if the conversion success, or
+ * NULL otherwise.
+ */
+static unsigned long *str_to_target_ids(const char *str, ssize_t len,
+					ssize_t *nr_ids)
+{
+	unsigned long *ids;
+	const int max_nr_ids = 32;
+	unsigned long id;
+	int pos = 0, parsed, ret;
+
+	*nr_ids = 0;
+	ids = kmalloc_array(max_nr_ids, sizeof(id), GFP_KERNEL);
+	if (!ids)
+		return NULL;
+	while (*nr_ids < max_nr_ids && pos < len) {
+		ret = sscanf(&str[pos], "%lu%n", &id, &parsed);
+		pos += parsed;
+		if (ret != 1)
+			break;
+		ids[*nr_ids] = id;
+		*nr_ids += 1;
+	}
+
+	return ids;
+}
+
+static void dbgfs_put_pids(unsigned long *ids, int nr_ids)
+{
+	int i;
+
+	for (i = 0; i < nr_ids; i++)
+		put_pid((struct pid *)ids[i]);
+}
+
+static ssize_t dbgfs_target_ids_write(struct file *file,
+		const char __user *buf, size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char *kbuf, *nrs;
+	unsigned long *targets;
+	ssize_t nr_targets;
+	ssize_t ret = count;
+	int i;
+	int err;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	nrs = kbuf;
+
+	targets = str_to_target_ids(nrs, ret, &nr_targets);
+	if (!targets) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	if (targetid_is_pid(ctx)) {
+		for (i = 0; i < nr_targets; i++) {
+			targets[i] = (unsigned long)find_get_pid(
+					(int)targets[i]);
+			if (!targets[i]) {
+				dbgfs_put_pids(targets, i);
+				ret = -EINVAL;
+				goto free_targets_out;
+			}
+		}
+	}
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond) {
+		if (targetid_is_pid(ctx))
+			dbgfs_put_pids(targets, nr_targets);
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	err = damon_set_targets(ctx, targets, nr_targets);
+	if (err) {
+		if (targetid_is_pid(ctx))
+			dbgfs_put_pids(targets, nr_targets);
+		ret = err;
+	}
+
+unlock_out:
+	mutex_unlock(&ctx->kdamond_lock);
+free_targets_out:
+	kfree(targets);
+out:
+	kfree(kbuf);
+	return ret;
+}
+
+static int damon_dbgfs_open(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+
+	return nonseekable_open(inode, file);
+}
+
+static const struct file_operations attrs_fops = {
+	.open = damon_dbgfs_open,
+	.read = dbgfs_attrs_read,
+	.write = dbgfs_attrs_write,
+};
+
+static const struct file_operations target_ids_fops = {
+	.open = damon_dbgfs_open,
+	.read = dbgfs_target_ids_read,
+	.write = dbgfs_target_ids_write,
+};
+
+static void dbgfs_fill_ctx_dir(struct dentry *dir, struct damon_ctx *ctx)
+{
+	const char * const file_names[] = {"attrs", "target_ids"};
+	const struct file_operations *fops[] = {&attrs_fops, &target_ids_fops};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(file_names); i++)
+		debugfs_create_file(file_names[i], 0600, dir, ctx, fops[i]);
+}
+
+static int dbgfs_before_terminate(struct damon_ctx *ctx)
+{
+	struct damon_target *t, *next;
+
+	if (!targetid_is_pid(ctx))
+		return 0;
+
+	damon_for_each_target_safe(t, next, ctx) {
+		put_pid((struct pid *)t->id);
+		damon_destroy_target(t);
+	}
+	return 0;
+}
+
+static struct damon_ctx *dbgfs_new_ctx(void)
+{
+	struct damon_ctx *ctx;
+
+	ctx = damon_new_ctx();
+	if (!ctx)
+		return NULL;
+
+	damon_va_set_primitives(ctx);
+	ctx->callback.before_terminate = dbgfs_before_terminate;
+	return ctx;
+}
+
+static ssize_t dbgfs_monitor_on_read(struct file *file,
+		char __user *buf, size_t count, loff_t *ppos)
+{
+	char monitor_on_buf[5];
+	bool monitor_on = damon_nr_running_ctxs() != 0;
+	int len;
+
+	len = scnprintf(monitor_on_buf, 5, monitor_on ? "on\n" : "off\n");
+
+	return simple_read_from_buffer(buf, count, ppos, monitor_on_buf, len);
+}
+
+static ssize_t dbgfs_monitor_on_write(struct file *file,
+		const char __user *buf, size_t count, loff_t *ppos)
+{
+	ssize_t ret = count;
+	char *kbuf;
+	int err;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	/* Remove white space */
+	if (sscanf(kbuf, "%s", kbuf) != 1) {
+		kfree(kbuf);
+		return -EINVAL;
+	}
+
+	if (!strncmp(kbuf, "on", count))
+		err = damon_start(dbgfs_ctxs, dbgfs_nr_ctxs);
+	else if (!strncmp(kbuf, "off", count))
+		err = damon_stop(dbgfs_ctxs, dbgfs_nr_ctxs);
+	else
+		err = -EINVAL;
+
+	if (err)
+		ret = err;
+	kfree(kbuf);
+	return ret;
+}
+
+static const struct file_operations monitor_on_fops = {
+	.read = dbgfs_monitor_on_read,
+	.write = dbgfs_monitor_on_write,
+};
+
+static int __init __damon_dbgfs_init(void)
+{
+	struct dentry *dbgfs_root;
+	const char * const file_names[] = {"monitor_on"};
+	const struct file_operations *fops[] = {&monitor_on_fops};
+	int i;
+
+	dbgfs_root = debugfs_create_dir("damon", NULL);
+
+	for (i = 0; i < ARRAY_SIZE(file_names); i++)
+		debugfs_create_file(file_names[i], 0600, dbgfs_root, NULL,
+				fops[i]);
+	dbgfs_fill_ctx_dir(dbgfs_root, dbgfs_ctxs[0]);
+
+	dbgfs_dirs = kmalloc_array(1, sizeof(dbgfs_root), GFP_KERNEL);
+	if (!dbgfs_dirs) {
+		debugfs_remove(dbgfs_root);
+		return -ENOMEM;
+	}
+	dbgfs_dirs[0] = dbgfs_root;
+
+	return 0;
+}
+
+/*
+ * Functions for the initialization
+ */
+
+static int __init damon_dbgfs_init(void)
+{
+	int rc;
+
+	dbgfs_ctxs = kmalloc(sizeof(*dbgfs_ctxs), GFP_KERNEL);
+	if (!dbgfs_ctxs)
+		return -ENOMEM;
+	dbgfs_ctxs[0] = dbgfs_new_ctx();
+	if (!dbgfs_ctxs[0]) {
+		kfree(dbgfs_ctxs);
+		return -ENOMEM;
+	}
+	dbgfs_nr_ctxs = 1;
+
+	rc = __damon_dbgfs_init();
+	if (rc) {
+		kfree(dbgfs_ctxs[0]);
+		kfree(dbgfs_ctxs);
+		pr_err("%s: dbgfs init failed\n", __func__);
+	}
+
+	return rc;
+}
+
+module_init(damon_dbgfs_init);
-- 
GitLab


From 9fda42d2d68dc2c850f9cf0ccc93120e3d247934 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:56:57 -0700
Subject: [PATCH 4786/4878] UPSTREAM: mm/damon/dbgfs: export kdamond pid to the
 user space

For CPU usage accounting, knowing pid of the monitoring thread could be
helpful.  For example, users could use cpuaccount cgroups with the pid.

This commit therefore exports the pid of currently running monitoring
thread to the user space via 'kdamond_pid' file in the debugfs directory.

Link: https://lkml.kernel.org/r/20210716081449.22187-9-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 429538e85410c3ae12719ec42b89ab873ed6d47b)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I32d41776a1850ed189b2759194061004ca8a83cf
---
 mm/damon/dbgfs.c | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index d2e0a547eb3f4..e850be4077f55 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -239,6 +239,32 @@ out:
 	return ret;
 }
 
+static ssize_t dbgfs_kdamond_pid_read(struct file *file,
+		char __user *buf, size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char *kbuf;
+	ssize_t len;
+
+	kbuf = kmalloc(count, GFP_KERNEL);
+	if (!kbuf)
+		return -ENOMEM;
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond)
+		len = scnprintf(kbuf, count, "%d\n", ctx->kdamond->pid);
+	else
+		len = scnprintf(kbuf, count, "none\n");
+	mutex_unlock(&ctx->kdamond_lock);
+	if (!len)
+		goto out;
+	len = simple_read_from_buffer(buf, count, ppos, kbuf, len);
+
+out:
+	kfree(kbuf);
+	return len;
+}
+
 static int damon_dbgfs_open(struct inode *inode, struct file *file)
 {
 	file->private_data = inode->i_private;
@@ -258,10 +284,17 @@ static const struct file_operations target_ids_fops = {
 	.write = dbgfs_target_ids_write,
 };
 
+static const struct file_operations kdamond_pid_fops = {
+	.open = damon_dbgfs_open,
+	.read = dbgfs_kdamond_pid_read,
+};
+
 static void dbgfs_fill_ctx_dir(struct dentry *dir, struct damon_ctx *ctx)
 {
-	const char * const file_names[] = {"attrs", "target_ids"};
-	const struct file_operations *fops[] = {&attrs_fops, &target_ids_fops};
+	const char * const file_names[] = {"attrs", "target_ids",
+		"kdamond_pid"};
+	const struct file_operations *fops[] = {&attrs_fops, &target_ids_fops,
+		&kdamond_pid_fops};
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(file_names); i++)
-- 
GitLab


From ac418a7965665bc09f607973eb08c032fb32cb06 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:57:01 -0700
Subject: [PATCH 4787/4878] UPSTREAM: mm/damon/dbgfs: support multiple contexts

In some use cases, users would want to run multiple monitoring context.
For example, if a user wants a high precision monitoring and dedicating
multiple CPUs for the job is ok, because DAMON creates one monitoring
thread per one context, the user can split the monitoring target regions
into multiple small regions and create one context for each region.  Or,
someone might want to simultaneously monitor different address spaces,
e.g., both virtual address space and physical address space.

The DAMON's API allows such usage, but 'damon-dbgfs' does not.  Therefore,
only kernel space DAMON users can do multiple contexts monitoring.

This commit allows the user space DAMON users to use multiple contexts
monitoring by introducing two new 'damon-dbgfs' debugfs files,
'mk_context' and 'rm_context'.  Users can create a new monitoring context
by writing the desired name of the new context to 'mk_context'.  Then, a
new directory with the name and having the files for setting of the
context ('attrs', 'target_ids' and 'record') will be created under the
debugfs directory.  Writing the name of the context to remove to
'rm_context' will remove the related context and directory.

Link: https://lkml.kernel.org/r/20210716081449.22187-10-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Fernand Sieber <sieberf@amazon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 75c1c2b53c78bf3b3188ebb7b3508dadbf98bba1)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Idba5509b6ef147cd6f8cd820d241718b284a34a3
---
 mm/damon/dbgfs.c | 195 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 193 insertions(+), 2 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index e850be4077f55..31ad550ecba2d 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -18,6 +18,7 @@
 static struct damon_ctx **dbgfs_ctxs;
 static int dbgfs_nr_ctxs;
 static struct dentry **dbgfs_dirs;
+static DEFINE_MUTEX(damon_dbgfs_lock);
 
 /*
  * Returns non-empty string on success, negative error code otherwise.
@@ -328,6 +329,186 @@ static struct damon_ctx *dbgfs_new_ctx(void)
 	return ctx;
 }
 
+static void dbgfs_destroy_ctx(struct damon_ctx *ctx)
+{
+	damon_destroy_ctx(ctx);
+}
+
+/*
+ * Make a context of @name and create a debugfs directory for it.
+ *
+ * This function should be called while holding damon_dbgfs_lock.
+ *
+ * Returns 0 on success, negative error code otherwise.
+ */
+static int dbgfs_mk_context(char *name)
+{
+	struct dentry *root, **new_dirs, *new_dir;
+	struct damon_ctx **new_ctxs, *new_ctx;
+
+	if (damon_nr_running_ctxs())
+		return -EBUSY;
+
+	new_ctxs = krealloc(dbgfs_ctxs, sizeof(*dbgfs_ctxs) *
+			(dbgfs_nr_ctxs + 1), GFP_KERNEL);
+	if (!new_ctxs)
+		return -ENOMEM;
+	dbgfs_ctxs = new_ctxs;
+
+	new_dirs = krealloc(dbgfs_dirs, sizeof(*dbgfs_dirs) *
+			(dbgfs_nr_ctxs + 1), GFP_KERNEL);
+	if (!new_dirs)
+		return -ENOMEM;
+	dbgfs_dirs = new_dirs;
+
+	root = dbgfs_dirs[0];
+	if (!root)
+		return -ENOENT;
+
+	new_dir = debugfs_create_dir(name, root);
+	dbgfs_dirs[dbgfs_nr_ctxs] = new_dir;
+
+	new_ctx = dbgfs_new_ctx();
+	if (!new_ctx) {
+		debugfs_remove(new_dir);
+		dbgfs_dirs[dbgfs_nr_ctxs] = NULL;
+		return -ENOMEM;
+	}
+
+	dbgfs_ctxs[dbgfs_nr_ctxs] = new_ctx;
+	dbgfs_fill_ctx_dir(dbgfs_dirs[dbgfs_nr_ctxs],
+			dbgfs_ctxs[dbgfs_nr_ctxs]);
+	dbgfs_nr_ctxs++;
+
+	return 0;
+}
+
+static ssize_t dbgfs_mk_context_write(struct file *file,
+		const char __user *buf, size_t count, loff_t *ppos)
+{
+	char *kbuf;
+	char *ctx_name;
+	ssize_t ret = count;
+	int err;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+	ctx_name = kmalloc(count + 1, GFP_KERNEL);
+	if (!ctx_name) {
+		kfree(kbuf);
+		return -ENOMEM;
+	}
+
+	/* Trim white space */
+	if (sscanf(kbuf, "%s", ctx_name) != 1) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	mutex_lock(&damon_dbgfs_lock);
+	err = dbgfs_mk_context(ctx_name);
+	if (err)
+		ret = err;
+	mutex_unlock(&damon_dbgfs_lock);
+
+out:
+	kfree(kbuf);
+	kfree(ctx_name);
+	return ret;
+}
+
+/*
+ * Remove a context of @name and its debugfs directory.
+ *
+ * This function should be called while holding damon_dbgfs_lock.
+ *
+ * Return 0 on success, negative error code otherwise.
+ */
+static int dbgfs_rm_context(char *name)
+{
+	struct dentry *root, *dir, **new_dirs;
+	struct damon_ctx **new_ctxs;
+	int i, j;
+
+	if (damon_nr_running_ctxs())
+		return -EBUSY;
+
+	root = dbgfs_dirs[0];
+	if (!root)
+		return -ENOENT;
+
+	dir = debugfs_lookup(name, root);
+	if (!dir)
+		return -ENOENT;
+
+	new_dirs = kmalloc_array(dbgfs_nr_ctxs - 1, sizeof(*dbgfs_dirs),
+			GFP_KERNEL);
+	if (!new_dirs)
+		return -ENOMEM;
+
+	new_ctxs = kmalloc_array(dbgfs_nr_ctxs - 1, sizeof(*dbgfs_ctxs),
+			GFP_KERNEL);
+	if (!new_ctxs) {
+		kfree(new_dirs);
+		return -ENOMEM;
+	}
+
+	for (i = 0, j = 0; i < dbgfs_nr_ctxs; i++) {
+		if (dbgfs_dirs[i] == dir) {
+			debugfs_remove(dbgfs_dirs[i]);
+			dbgfs_destroy_ctx(dbgfs_ctxs[i]);
+			continue;
+		}
+		new_dirs[j] = dbgfs_dirs[i];
+		new_ctxs[j++] = dbgfs_ctxs[i];
+	}
+
+	kfree(dbgfs_dirs);
+	kfree(dbgfs_ctxs);
+
+	dbgfs_dirs = new_dirs;
+	dbgfs_ctxs = new_ctxs;
+	dbgfs_nr_ctxs--;
+
+	return 0;
+}
+
+static ssize_t dbgfs_rm_context_write(struct file *file,
+		const char __user *buf, size_t count, loff_t *ppos)
+{
+	char *kbuf;
+	ssize_t ret = count;
+	int err;
+	char *ctx_name;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+	ctx_name = kmalloc(count + 1, GFP_KERNEL);
+	if (!ctx_name) {
+		kfree(kbuf);
+		return -ENOMEM;
+	}
+
+	/* Trim white space */
+	if (sscanf(kbuf, "%s", ctx_name) != 1) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	mutex_lock(&damon_dbgfs_lock);
+	err = dbgfs_rm_context(ctx_name);
+	if (err)
+		ret = err;
+	mutex_unlock(&damon_dbgfs_lock);
+
+out:
+	kfree(kbuf);
+	kfree(ctx_name);
+	return ret;
+}
+
 static ssize_t dbgfs_monitor_on_read(struct file *file,
 		char __user *buf, size_t count, loff_t *ppos)
 {
@@ -370,6 +551,14 @@ static ssize_t dbgfs_monitor_on_write(struct file *file,
 	return ret;
 }
 
+static const struct file_operations mk_contexts_fops = {
+	.write = dbgfs_mk_context_write,
+};
+
+static const struct file_operations rm_contexts_fops = {
+	.write = dbgfs_rm_context_write,
+};
+
 static const struct file_operations monitor_on_fops = {
 	.read = dbgfs_monitor_on_read,
 	.write = dbgfs_monitor_on_write,
@@ -378,8 +567,10 @@ static const struct file_operations monitor_on_fops = {
 static int __init __damon_dbgfs_init(void)
 {
 	struct dentry *dbgfs_root;
-	const char * const file_names[] = {"monitor_on"};
-	const struct file_operations *fops[] = {&monitor_on_fops};
+	const char * const file_names[] = {"mk_contexts", "rm_contexts",
+		"monitor_on"};
+	const struct file_operations *fops[] = {&mk_contexts_fops,
+		&rm_contexts_fops, &monitor_on_fops};
 	int i;
 
 	dbgfs_root = debugfs_create_dir("damon", NULL);
-- 
GitLab


From d3cff19d3197c946706d0cd89ad30e57df52ff7c Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:57:13 -0700
Subject: [PATCH 4788/4878] UPSTREAM: mm/damon: add user space selftests

This commit adds a simple user space tests for DAMON.  The tests are using
kselftest framework.

Link: https://lkml.kernel.org/r/20210716081449.22187-13-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Markus Boehme <markubo@amazon.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Fernand Sieber <sieberf@amazon.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit b348eb7abd0987b849420113ced27ad7a1bc6cf3)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I4406106b9d7a0b3774de638fc014357762c30f8e
---
 tools/testing/selftests/damon/Makefile        |  7 ++
 .../selftests/damon/_chk_dependency.sh        | 28 +++++++
 .../testing/selftests/damon/debugfs_attrs.sh  | 75 +++++++++++++++++++
 3 files changed, 110 insertions(+)
 create mode 100644 tools/testing/selftests/damon/Makefile
 create mode 100644 tools/testing/selftests/damon/_chk_dependency.sh
 create mode 100644 tools/testing/selftests/damon/debugfs_attrs.sh

diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile
new file mode 100644
index 0000000000000..8a3f2cd9fec0c
--- /dev/null
+++ b/tools/testing/selftests/damon/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for damon selftests
+
+TEST_FILES = _chk_dependency.sh
+TEST_PROGS = debugfs_attrs.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/damon/_chk_dependency.sh b/tools/testing/selftests/damon/_chk_dependency.sh
new file mode 100644
index 0000000000000..0189db81550be
--- /dev/null
+++ b/tools/testing/selftests/damon/_chk_dependency.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+DBGFS=/sys/kernel/debug/damon
+
+if [ $EUID -ne 0 ];
+then
+	echo "Run as root"
+	exit $ksft_skip
+fi
+
+if [ ! -d "$DBGFS" ]
+then
+	echo "$DBGFS not found"
+	exit $ksft_skip
+fi
+
+for f in attrs target_ids monitor_on
+do
+	if [ ! -f "$DBGFS/$f" ]
+	then
+		echo "$f not found"
+		exit 1
+	fi
+done
diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
new file mode 100644
index 0000000000000..bfabb19dc0d3d
--- /dev/null
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+test_write_result() {
+	file=$1
+	content=$2
+	orig_content=$3
+	expect_reason=$4
+	expected=$5
+
+	echo "$content" > "$file"
+	if [ $? -ne "$expected" ]
+	then
+		echo "writing $content to $file doesn't return $expected"
+		echo "expected because: $expect_reason"
+		echo "$orig_content" > "$file"
+		exit 1
+	fi
+}
+
+test_write_succ() {
+	test_write_result "$1" "$2" "$3" "$4" 0
+}
+
+test_write_fail() {
+	test_write_result "$1" "$2" "$3" "$4" 1
+}
+
+test_content() {
+	file=$1
+	orig_content=$2
+	expected=$3
+	expect_reason=$4
+
+	content=$(cat "$file")
+	if [ "$content" != "$expected" ]
+	then
+		echo "reading $file expected $expected but $content"
+		echo "expected because: $expect_reason"
+		echo "$orig_content" > "$file"
+		exit 1
+	fi
+}
+
+source ./_chk_dependency.sh
+
+# Test attrs file
+# ===============
+
+file="$DBGFS/attrs"
+orig_content=$(cat "$file")
+
+test_write_succ "$file" "1 2 3 4 5" "$orig_content" "valid input"
+test_write_fail "$file" "1 2 3 4" "$orig_content" "no enough fields"
+test_write_fail "$file" "1 2 3 5 4" "$orig_content" \
+	"min_nr_regions > max_nr_regions"
+test_content "$file" "$orig_content" "1 2 3 4 5" "successfully written"
+echo "$orig_content" > "$file"
+
+# Test target_ids file
+# ====================
+
+file="$DBGFS/target_ids"
+orig_content=$(cat "$file")
+
+test_write_succ "$file" "1 2 3 4" "$orig_content" "valid input"
+test_write_succ "$file" "1 2 abc 4" "$orig_content" "still valid input"
+test_content "$file" "$orig_content" "1 2" "non-integer was there"
+test_write_succ "$file" "abc 2 3" "$orig_content" "the file allows wrong input"
+test_content "$file" "$orig_content" "" "wrong input written"
+test_write_succ "$file" "" "$orig_content" "empty input"
+test_content "$file" "$orig_content" "" "empty input written"
+echo "$orig_content" > "$file"
+
+echo "PASS"
-- 
GitLab


From 789928c5b6c857365c49508accf0c4656d778bb1 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Tue, 7 Sep 2021 19:57:09 -0700
Subject: [PATCH 4789/4878] UPSTREAM: mm/damon: add kunit tests

This commit adds kunit based unit tests for the core and the virtual
address spaces monitoring primitives of DAMON.

Link: https://lkml.kernel.org/r/20210716081449.22187-12-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Fan Du <fan.du@intel.com>
Cc: Fernand Sieber <sieberf@amazon.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Maximilian Heyne <mheyne@amazon.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 17ccae8bb5c928946f6f3af14626ec458f74e6ad)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I3f660b6064a2db350b6b2a422889d189c7a72f62
---
 mm/damon/Kconfig      |  36 +++++
 mm/damon/core-test.h  | 253 ++++++++++++++++++++++++++++++++
 mm/damon/core.c       |   7 +
 mm/damon/dbgfs-test.h | 126 ++++++++++++++++
 mm/damon/dbgfs.c      |   2 +
 mm/damon/vaddr-test.h | 329 ++++++++++++++++++++++++++++++++++++++++++
 mm/damon/vaddr.c      |   7 +
 7 files changed, 760 insertions(+)
 create mode 100644 mm/damon/core-test.h
 create mode 100644 mm/damon/dbgfs-test.h
 create mode 100644 mm/damon/vaddr-test.h

diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index c8e3dba6fb4cf..37024798a97ca 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -12,6 +12,18 @@ config DAMON
 	  See https://damonitor.github.io/doc/html/latest-damon/index.html for
 	  more information.
 
+config DAMON_KUNIT_TEST
+	bool "Test for damon" if !KUNIT_ALL_TESTS
+	depends on DAMON && KUNIT=y
+	default KUNIT_ALL_TESTS
+	help
+	  This builds the DAMON Kunit test suite.
+
+	  For more information on KUnit and unit tests in general, please refer
+	  to the KUnit documentation.
+
+	  If unsure, say N.
+
 config DAMON_VADDR
 	bool "Data access monitoring primitives for virtual address spaces"
 	depends on DAMON && MMU
@@ -20,6 +32,18 @@ config DAMON_VADDR
 	  This builds the default data access monitoring primitives for DAMON
 	  that works for virtual address spaces.
 
+config DAMON_VADDR_KUNIT_TEST
+	bool "Test for DAMON primitives" if !KUNIT_ALL_TESTS
+	depends on DAMON_VADDR && KUNIT=y
+	default KUNIT_ALL_TESTS
+	help
+	  This builds the DAMON virtual addresses primitives Kunit test suite.
+
+	  For more information on KUnit and unit tests in general, please refer
+	  to the KUnit documentation.
+
+	  If unsure, say N.
+
 config DAMON_DBGFS
 	bool "DAMON debugfs interface"
 	depends on DAMON_VADDR && DEBUG_FS
@@ -29,4 +53,16 @@ config DAMON_DBGFS
 
 	  If unsure, say N.
 
+config DAMON_DBGFS_KUNIT_TEST
+	bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS
+	depends on DAMON_DBGFS && KUNIT=y
+	default KUNIT_ALL_TESTS
+	help
+	  This builds the DAMON debugfs interface Kunit test suite.
+
+	  For more information on KUnit and unit tests in general, please refer
+	  to the KUnit documentation.
+
+	  If unsure, say N.
+
 endmenu
diff --git a/mm/damon/core-test.h b/mm/damon/core-test.h
new file mode 100644
index 0000000000000..c938a9c34e6c5
--- /dev/null
+++ b/mm/damon/core-test.h
@@ -0,0 +1,253 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Data Access Monitor Unit Tests
+ *
+ * Copyright 2019 Amazon.com, Inc. or its affiliates.  All rights reserved.
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#ifdef CONFIG_DAMON_KUNIT_TEST
+
+#ifndef _DAMON_CORE_TEST_H
+#define _DAMON_CORE_TEST_H
+
+#include <kunit/test.h>
+
+static void damon_test_regions(struct kunit *test)
+{
+	struct damon_region *r;
+	struct damon_target *t;
+
+	r = damon_new_region(1, 2);
+	KUNIT_EXPECT_EQ(test, 1ul, r->ar.start);
+	KUNIT_EXPECT_EQ(test, 2ul, r->ar.end);
+	KUNIT_EXPECT_EQ(test, 0u, r->nr_accesses);
+
+	t = damon_new_target(42);
+	KUNIT_EXPECT_EQ(test, 0u, damon_nr_regions(t));
+
+	damon_add_region(r, t);
+	KUNIT_EXPECT_EQ(test, 1u, damon_nr_regions(t));
+
+	damon_del_region(r, t);
+	KUNIT_EXPECT_EQ(test, 0u, damon_nr_regions(t));
+
+	damon_free_target(t);
+}
+
+static unsigned int nr_damon_targets(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	unsigned int nr_targets = 0;
+
+	damon_for_each_target(t, ctx)
+		nr_targets++;
+
+	return nr_targets;
+}
+
+static void damon_test_target(struct kunit *test)
+{
+	struct damon_ctx *c = damon_new_ctx();
+	struct damon_target *t;
+
+	t = damon_new_target(42);
+	KUNIT_EXPECT_EQ(test, 42ul, t->id);
+	KUNIT_EXPECT_EQ(test, 0u, nr_damon_targets(c));
+
+	damon_add_target(c, t);
+	KUNIT_EXPECT_EQ(test, 1u, nr_damon_targets(c));
+
+	damon_destroy_target(t);
+	KUNIT_EXPECT_EQ(test, 0u, nr_damon_targets(c));
+
+	damon_destroy_ctx(c);
+}
+
+/*
+ * Test kdamond_reset_aggregated()
+ *
+ * DAMON checks access to each region and aggregates this information as the
+ * access frequency of each region.  In detail, it increases '->nr_accesses' of
+ * regions that an access has confirmed.  'kdamond_reset_aggregated()' flushes
+ * the aggregated information ('->nr_accesses' of each regions) to the result
+ * buffer.  As a result of the flushing, the '->nr_accesses' of regions are
+ * initialized to zero.
+ */
+static void damon_test_aggregate(struct kunit *test)
+{
+	struct damon_ctx *ctx = damon_new_ctx();
+	unsigned long target_ids[] = {1, 2, 3};
+	unsigned long saddr[][3] = {{10, 20, 30}, {5, 42, 49}, {13, 33, 55} };
+	unsigned long eaddr[][3] = {{15, 27, 40}, {31, 45, 55}, {23, 44, 66} };
+	unsigned long accesses[][3] = {{42, 95, 84}, {10, 20, 30}, {0, 1, 2} };
+	struct damon_target *t;
+	struct damon_region *r;
+	int it, ir;
+
+	damon_set_targets(ctx, target_ids, 3);
+
+	it = 0;
+	damon_for_each_target(t, ctx) {
+		for (ir = 0; ir < 3; ir++) {
+			r = damon_new_region(saddr[it][ir], eaddr[it][ir]);
+			r->nr_accesses = accesses[it][ir];
+			damon_add_region(r, t);
+		}
+		it++;
+	}
+	kdamond_reset_aggregated(ctx);
+	it = 0;
+	damon_for_each_target(t, ctx) {
+		ir = 0;
+		/* '->nr_accesses' should be zeroed */
+		damon_for_each_region(r, t) {
+			KUNIT_EXPECT_EQ(test, 0u, r->nr_accesses);
+			ir++;
+		}
+		/* regions should be preserved */
+		KUNIT_EXPECT_EQ(test, 3, ir);
+		it++;
+	}
+	/* targets also should be preserved */
+	KUNIT_EXPECT_EQ(test, 3, it);
+
+	damon_destroy_ctx(ctx);
+}
+
+static void damon_test_split_at(struct kunit *test)
+{
+	struct damon_ctx *c = damon_new_ctx();
+	struct damon_target *t;
+	struct damon_region *r;
+
+	t = damon_new_target(42);
+	r = damon_new_region(0, 100);
+	damon_add_region(r, t);
+	damon_split_region_at(c, t, r, 25);
+	KUNIT_EXPECT_EQ(test, r->ar.start, 0ul);
+	KUNIT_EXPECT_EQ(test, r->ar.end, 25ul);
+
+	r = damon_next_region(r);
+	KUNIT_EXPECT_EQ(test, r->ar.start, 25ul);
+	KUNIT_EXPECT_EQ(test, r->ar.end, 100ul);
+
+	damon_free_target(t);
+	damon_destroy_ctx(c);
+}
+
+static void damon_test_merge_two(struct kunit *test)
+{
+	struct damon_target *t;
+	struct damon_region *r, *r2, *r3;
+	int i;
+
+	t = damon_new_target(42);
+	r = damon_new_region(0, 100);
+	r->nr_accesses = 10;
+	damon_add_region(r, t);
+	r2 = damon_new_region(100, 300);
+	r2->nr_accesses = 20;
+	damon_add_region(r2, t);
+
+	damon_merge_two_regions(t, r, r2);
+	KUNIT_EXPECT_EQ(test, r->ar.start, 0ul);
+	KUNIT_EXPECT_EQ(test, r->ar.end, 300ul);
+	KUNIT_EXPECT_EQ(test, r->nr_accesses, 16u);
+
+	i = 0;
+	damon_for_each_region(r3, t) {
+		KUNIT_EXPECT_PTR_EQ(test, r, r3);
+		i++;
+	}
+	KUNIT_EXPECT_EQ(test, i, 1);
+
+	damon_free_target(t);
+}
+
+static struct damon_region *__nth_region_of(struct damon_target *t, int idx)
+{
+	struct damon_region *r;
+	unsigned int i = 0;
+
+	damon_for_each_region(r, t) {
+		if (i++ == idx)
+			return r;
+	}
+
+	return NULL;
+}
+
+static void damon_test_merge_regions_of(struct kunit *test)
+{
+	struct damon_target *t;
+	struct damon_region *r;
+	unsigned long sa[] = {0, 100, 114, 122, 130, 156, 170, 184};
+	unsigned long ea[] = {100, 112, 122, 130, 156, 170, 184, 230};
+	unsigned int nrs[] = {0, 0, 10, 10, 20, 30, 1, 2};
+
+	unsigned long saddrs[] = {0, 114, 130, 156, 170};
+	unsigned long eaddrs[] = {112, 130, 156, 170, 230};
+	int i;
+
+	t = damon_new_target(42);
+	for (i = 0; i < ARRAY_SIZE(sa); i++) {
+		r = damon_new_region(sa[i], ea[i]);
+		r->nr_accesses = nrs[i];
+		damon_add_region(r, t);
+	}
+
+	damon_merge_regions_of(t, 9, 9999);
+	/* 0-112, 114-130, 130-156, 156-170 */
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 5u);
+	for (i = 0; i < 5; i++) {
+		r = __nth_region_of(t, i);
+		KUNIT_EXPECT_EQ(test, r->ar.start, saddrs[i]);
+		KUNIT_EXPECT_EQ(test, r->ar.end, eaddrs[i]);
+	}
+	damon_free_target(t);
+}
+
+static void damon_test_split_regions_of(struct kunit *test)
+{
+	struct damon_ctx *c = damon_new_ctx();
+	struct damon_target *t;
+	struct damon_region *r;
+
+	t = damon_new_target(42);
+	r = damon_new_region(0, 22);
+	damon_add_region(r, t);
+	damon_split_regions_of(c, t, 2);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 2u);
+	damon_free_target(t);
+
+	t = damon_new_target(42);
+	r = damon_new_region(0, 220);
+	damon_add_region(r, t);
+	damon_split_regions_of(c, t, 4);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 4u);
+	damon_free_target(t);
+	damon_destroy_ctx(c);
+}
+
+static struct kunit_case damon_test_cases[] = {
+	KUNIT_CASE(damon_test_target),
+	KUNIT_CASE(damon_test_regions),
+	KUNIT_CASE(damon_test_aggregate),
+	KUNIT_CASE(damon_test_split_at),
+	KUNIT_CASE(damon_test_merge_two),
+	KUNIT_CASE(damon_test_merge_regions_of),
+	KUNIT_CASE(damon_test_split_regions_of),
+	{},
+};
+
+static struct kunit_suite damon_test_suite = {
+	.name = "damon",
+	.test_cases = damon_test_cases,
+};
+kunit_test_suite(damon_test_suite);
+
+#endif /* _DAMON_CORE_TEST_H */
+
+#endif	/* CONFIG_DAMON_KUNIT_TEST */
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 59033488402e8..30e9211f494a7 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -16,6 +16,11 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/damon.h>
 
+#ifdef CONFIG_DAMON_KUNIT_TEST
+#undef DAMON_MIN_REGION
+#define DAMON_MIN_REGION 1
+#endif
+
 /* Get a random number in [l, r) */
 #define damon_rand(l, r) (l + prandom_u32_max(r - l))
 
@@ -711,3 +716,5 @@ static int kdamond_fn(void *data)
 
 	do_exit(0);
 }
+
+#include "core-test.h"
diff --git a/mm/damon/dbgfs-test.h b/mm/damon/dbgfs-test.h
new file mode 100644
index 0000000000000..930e83bceef03
--- /dev/null
+++ b/mm/damon/dbgfs-test.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * DAMON Debugfs Interface Unit Tests
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#ifdef CONFIG_DAMON_DBGFS_KUNIT_TEST
+
+#ifndef _DAMON_DBGFS_TEST_H
+#define _DAMON_DBGFS_TEST_H
+
+#include <kunit/test.h>
+
+static void damon_dbgfs_test_str_to_target_ids(struct kunit *test)
+{
+	char *question;
+	unsigned long *answers;
+	unsigned long expected[] = {12, 35, 46};
+	ssize_t nr_integers = 0, i;
+
+	question = "123";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
+	KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
+	kfree(answers);
+
+	question = "123abc";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
+	KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
+	kfree(answers);
+
+	question = "a123";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
+	kfree(answers);
+
+	question = "12 35";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
+	for (i = 0; i < nr_integers; i++)
+		KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
+	kfree(answers);
+
+	question = "12 35 46";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)3, nr_integers);
+	for (i = 0; i < nr_integers; i++)
+		KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
+	kfree(answers);
+
+	question = "12 35 abc 46";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
+	for (i = 0; i < 2; i++)
+		KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
+	kfree(answers);
+
+	question = "";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
+	kfree(answers);
+
+	question = "\n";
+	answers = str_to_target_ids(question, strnlen(question, 128),
+			&nr_integers);
+	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
+	kfree(answers);
+}
+
+static void damon_dbgfs_test_set_targets(struct kunit *test)
+{
+	struct damon_ctx *ctx = dbgfs_new_ctx();
+	unsigned long ids[] = {1, 2, 3};
+	char buf[64];
+
+	/* Make DAMON consider target id as plain number */
+	ctx->primitive.target_valid = NULL;
+	ctx->primitive.cleanup = NULL;
+
+	damon_set_targets(ctx, ids, 3);
+	sprint_target_ids(ctx, buf, 64);
+	KUNIT_EXPECT_STREQ(test, (char *)buf, "1 2 3\n");
+
+	damon_set_targets(ctx, NULL, 0);
+	sprint_target_ids(ctx, buf, 64);
+	KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
+
+	damon_set_targets(ctx, (unsigned long []){1, 2}, 2);
+	sprint_target_ids(ctx, buf, 64);
+	KUNIT_EXPECT_STREQ(test, (char *)buf, "1 2\n");
+
+	damon_set_targets(ctx, (unsigned long []){2}, 1);
+	sprint_target_ids(ctx, buf, 64);
+	KUNIT_EXPECT_STREQ(test, (char *)buf, "2\n");
+
+	damon_set_targets(ctx, NULL, 0);
+	sprint_target_ids(ctx, buf, 64);
+	KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
+
+	dbgfs_destroy_ctx(ctx);
+}
+
+static struct kunit_case damon_test_cases[] = {
+	KUNIT_CASE(damon_dbgfs_test_str_to_target_ids),
+	KUNIT_CASE(damon_dbgfs_test_set_targets),
+	{},
+};
+
+static struct kunit_suite damon_test_suite = {
+	.name = "damon-dbgfs",
+	.test_cases = damon_test_cases,
+};
+kunit_test_suite(damon_test_suite);
+
+#endif /* _DAMON_TEST_H */
+
+#endif	/* CONFIG_DAMON_KUNIT_TEST */
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 31ad550ecba2d..faee070977d80 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -619,3 +619,5 @@ static int __init damon_dbgfs_init(void)
 }
 
 module_init(damon_dbgfs_init);
+
+#include "dbgfs-test.h"
diff --git a/mm/damon/vaddr-test.h b/mm/damon/vaddr-test.h
new file mode 100644
index 0000000000000..1f5c13257dbaf
--- /dev/null
+++ b/mm/damon/vaddr-test.h
@@ -0,0 +1,329 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Data Access Monitor Unit Tests
+ *
+ * Copyright 2019 Amazon.com, Inc. or its affiliates.  All rights reserved.
+ *
+ * Author: SeongJae Park <sjpark@amazon.de>
+ */
+
+#ifdef CONFIG_DAMON_VADDR_KUNIT_TEST
+
+#ifndef _DAMON_VADDR_TEST_H
+#define _DAMON_VADDR_TEST_H
+
+#include <kunit/test.h>
+
+static void __link_vmas(struct vm_area_struct *vmas, ssize_t nr_vmas)
+{
+	int i, j;
+	unsigned long largest_gap, gap;
+
+	if (!nr_vmas)
+		return;
+
+	for (i = 0; i < nr_vmas - 1; i++) {
+		vmas[i].vm_next = &vmas[i + 1];
+
+		vmas[i].vm_rb.rb_left = NULL;
+		vmas[i].vm_rb.rb_right = &vmas[i + 1].vm_rb;
+
+		largest_gap = 0;
+		for (j = i; j < nr_vmas; j++) {
+			if (j == 0)
+				continue;
+			gap = vmas[j].vm_start - vmas[j - 1].vm_end;
+			if (gap > largest_gap)
+				largest_gap = gap;
+		}
+		vmas[i].rb_subtree_gap = largest_gap;
+	}
+	vmas[i].vm_next = NULL;
+	vmas[i].vm_rb.rb_right = NULL;
+	vmas[i].rb_subtree_gap = 0;
+}
+
+/*
+ * Test __damon_va_three_regions() function
+ *
+ * In case of virtual memory address spaces monitoring, DAMON converts the
+ * complex and dynamic memory mappings of each target task to three
+ * discontiguous regions which cover every mapped areas.  However, the three
+ * regions should not include the two biggest unmapped areas in the original
+ * mapping, because the two biggest areas are normally the areas between 1)
+ * heap and the mmap()-ed regions, and 2) the mmap()-ed regions and stack.
+ * Because these two unmapped areas are very huge but obviously never accessed,
+ * covering the region is just a waste.
+ *
+ * '__damon_va_three_regions() receives an address space of a process.  It
+ * first identifies the start of mappings, end of mappings, and the two biggest
+ * unmapped areas.  After that, based on the information, it constructs the
+ * three regions and returns.  For more detail, refer to the comment of
+ * 'damon_init_regions_of()' function definition in 'mm/damon.c' file.
+ *
+ * For example, suppose virtual address ranges of 10-20, 20-25, 200-210,
+ * 210-220, 300-305, and 307-330 (Other comments represent this mappings in
+ * more short form: 10-20-25, 200-210-220, 300-305, 307-330) of a process are
+ * mapped.  To cover every mappings, the three regions should start with 10,
+ * and end with 305.  The process also has three unmapped areas, 25-200,
+ * 220-300, and 305-307.  Among those, 25-200 and 220-300 are the biggest two
+ * unmapped areas, and thus it should be converted to three regions of 10-25,
+ * 200-220, and 300-330.
+ */
+static void damon_test_three_regions_in_vmas(struct kunit *test)
+{
+	struct damon_addr_range regions[3] = {0,};
+	/* 10-20-25, 200-210-220, 300-305, 307-330 */
+	struct vm_area_struct vmas[] = {
+		(struct vm_area_struct) {.vm_start = 10, .vm_end = 20},
+		(struct vm_area_struct) {.vm_start = 20, .vm_end = 25},
+		(struct vm_area_struct) {.vm_start = 200, .vm_end = 210},
+		(struct vm_area_struct) {.vm_start = 210, .vm_end = 220},
+		(struct vm_area_struct) {.vm_start = 300, .vm_end = 305},
+		(struct vm_area_struct) {.vm_start = 307, .vm_end = 330},
+	};
+
+	__link_vmas(vmas, 6);
+
+	__damon_va_three_regions(&vmas[0], regions);
+
+	KUNIT_EXPECT_EQ(test, 10ul, regions[0].start);
+	KUNIT_EXPECT_EQ(test, 25ul, regions[0].end);
+	KUNIT_EXPECT_EQ(test, 200ul, regions[1].start);
+	KUNIT_EXPECT_EQ(test, 220ul, regions[1].end);
+	KUNIT_EXPECT_EQ(test, 300ul, regions[2].start);
+	KUNIT_EXPECT_EQ(test, 330ul, regions[2].end);
+}
+
+static struct damon_region *__nth_region_of(struct damon_target *t, int idx)
+{
+	struct damon_region *r;
+	unsigned int i = 0;
+
+	damon_for_each_region(r, t) {
+		if (i++ == idx)
+			return r;
+	}
+
+	return NULL;
+}
+
+/*
+ * Test 'damon_va_apply_three_regions()'
+ *
+ * test			kunit object
+ * regions		an array containing start/end addresses of current
+ *			monitoring target regions
+ * nr_regions		the number of the addresses in 'regions'
+ * three_regions	The three regions that need to be applied now
+ * expected		start/end addresses of monitoring target regions that
+ *			'three_regions' are applied
+ * nr_expected		the number of addresses in 'expected'
+ *
+ * The memory mapping of the target processes changes dynamically.  To follow
+ * the change, DAMON periodically reads the mappings, simplifies it to the
+ * three regions, and updates the monitoring target regions to fit in the three
+ * regions.  The update of current target regions is the role of
+ * 'damon_va_apply_three_regions()'.
+ *
+ * This test passes the given target regions and the new three regions that
+ * need to be applied to the function and check whether it updates the regions
+ * as expected.
+ */
+static void damon_do_test_apply_three_regions(struct kunit *test,
+				unsigned long *regions, int nr_regions,
+				struct damon_addr_range *three_regions,
+				unsigned long *expected, int nr_expected)
+{
+	struct damon_ctx *ctx = damon_new_ctx();
+	struct damon_target *t;
+	struct damon_region *r;
+	int i;
+
+	t = damon_new_target(42);
+	for (i = 0; i < nr_regions / 2; i++) {
+		r = damon_new_region(regions[i * 2], regions[i * 2 + 1]);
+		damon_add_region(r, t);
+	}
+	damon_add_target(ctx, t);
+
+	damon_va_apply_three_regions(t, three_regions);
+
+	for (i = 0; i < nr_expected / 2; i++) {
+		r = __nth_region_of(t, i);
+		KUNIT_EXPECT_EQ(test, r->ar.start, expected[i * 2]);
+		KUNIT_EXPECT_EQ(test, r->ar.end, expected[i * 2 + 1]);
+	}
+
+	damon_destroy_ctx(ctx);
+}
+
+/*
+ * This function test most common case where the three big regions are only
+ * slightly changed.  Target regions should adjust their boundary (10-20-30,
+ * 50-55, 70-80, 90-100) to fit with the new big regions or remove target
+ * regions (57-79) that now out of the three regions.
+ */
+static void damon_test_apply_three_regions1(struct kunit *test)
+{
+	/* 10-20-30, 50-55-57-59, 70-80-90-100 */
+	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,
+				70, 80, 80, 90, 90, 100};
+	/* 5-27, 45-55, 73-104 */
+	struct damon_addr_range new_three_regions[3] = {
+		(struct damon_addr_range){.start = 5, .end = 27},
+		(struct damon_addr_range){.start = 45, .end = 55},
+		(struct damon_addr_range){.start = 73, .end = 104} };
+	/* 5-20-27, 45-55, 73-80-90-104 */
+	unsigned long expected[] = {5, 20, 20, 27, 45, 55,
+				73, 80, 80, 90, 90, 104};
+
+	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),
+			new_three_regions, expected, ARRAY_SIZE(expected));
+}
+
+/*
+ * Test slightly bigger change.  Similar to above, but the second big region
+ * now require two target regions (50-55, 57-59) to be removed.
+ */
+static void damon_test_apply_three_regions2(struct kunit *test)
+{
+	/* 10-20-30, 50-55-57-59, 70-80-90-100 */
+	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,
+				70, 80, 80, 90, 90, 100};
+	/* 5-27, 56-57, 65-104 */
+	struct damon_addr_range new_three_regions[3] = {
+		(struct damon_addr_range){.start = 5, .end = 27},
+		(struct damon_addr_range){.start = 56, .end = 57},
+		(struct damon_addr_range){.start = 65, .end = 104} };
+	/* 5-20-27, 56-57, 65-80-90-104 */
+	unsigned long expected[] = {5, 20, 20, 27, 56, 57,
+				65, 80, 80, 90, 90, 104};
+
+	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),
+			new_three_regions, expected, ARRAY_SIZE(expected));
+}
+
+/*
+ * Test a big change.  The second big region has totally freed and mapped to
+ * different area (50-59 -> 61-63).  The target regions which were in the old
+ * second big region (50-55-57-59) should be removed and new target region
+ * covering the second big region (61-63) should be created.
+ */
+static void damon_test_apply_three_regions3(struct kunit *test)
+{
+	/* 10-20-30, 50-55-57-59, 70-80-90-100 */
+	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,
+				70, 80, 80, 90, 90, 100};
+	/* 5-27, 61-63, 65-104 */
+	struct damon_addr_range new_three_regions[3] = {
+		(struct damon_addr_range){.start = 5, .end = 27},
+		(struct damon_addr_range){.start = 61, .end = 63},
+		(struct damon_addr_range){.start = 65, .end = 104} };
+	/* 5-20-27, 61-63, 65-80-90-104 */
+	unsigned long expected[] = {5, 20, 20, 27, 61, 63,
+				65, 80, 80, 90, 90, 104};
+
+	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),
+			new_three_regions, expected, ARRAY_SIZE(expected));
+}
+
+/*
+ * Test another big change.  Both of the second and third big regions (50-59
+ * and 70-100) has totally freed and mapped to different area (30-32 and
+ * 65-68).  The target regions which were in the old second and third big
+ * regions should now be removed and new target regions covering the new second
+ * and third big regions should be crated.
+ */
+static void damon_test_apply_three_regions4(struct kunit *test)
+{
+	/* 10-20-30, 50-55-57-59, 70-80-90-100 */
+	unsigned long regions[] = {10, 20, 20, 30, 50, 55, 55, 57, 57, 59,
+				70, 80, 80, 90, 90, 100};
+	/* 5-7, 30-32, 65-68 */
+	struct damon_addr_range new_three_regions[3] = {
+		(struct damon_addr_range){.start = 5, .end = 7},
+		(struct damon_addr_range){.start = 30, .end = 32},
+		(struct damon_addr_range){.start = 65, .end = 68} };
+	/* expect 5-7, 30-32, 65-68 */
+	unsigned long expected[] = {5, 7, 30, 32, 65, 68};
+
+	damon_do_test_apply_three_regions(test, regions, ARRAY_SIZE(regions),
+			new_three_regions, expected, ARRAY_SIZE(expected));
+}
+
+static void damon_test_split_evenly(struct kunit *test)
+{
+	struct damon_ctx *c = damon_new_ctx();
+	struct damon_target *t;
+	struct damon_region *r;
+	unsigned long i;
+
+	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(NULL, NULL, 5),
+			-EINVAL);
+
+	t = damon_new_target(42);
+	r = damon_new_region(0, 100);
+	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 0), -EINVAL);
+
+	damon_add_region(r, t);
+	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 10), 0);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 10u);
+
+	i = 0;
+	damon_for_each_region(r, t) {
+		KUNIT_EXPECT_EQ(test, r->ar.start, i++ * 10);
+		KUNIT_EXPECT_EQ(test, r->ar.end, i * 10);
+	}
+	damon_free_target(t);
+
+	t = damon_new_target(42);
+	r = damon_new_region(5, 59);
+	damon_add_region(r, t);
+	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 5), 0);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 5u);
+
+	i = 0;
+	damon_for_each_region(r, t) {
+		if (i == 4)
+			break;
+		KUNIT_EXPECT_EQ(test, r->ar.start, 5 + 10 * i++);
+		KUNIT_EXPECT_EQ(test, r->ar.end, 5 + 10 * i);
+	}
+	KUNIT_EXPECT_EQ(test, r->ar.start, 5 + 10 * i);
+	KUNIT_EXPECT_EQ(test, r->ar.end, 59ul);
+	damon_free_target(t);
+
+	t = damon_new_target(42);
+	r = damon_new_region(5, 6);
+	damon_add_region(r, t);
+	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 2), -EINVAL);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 1u);
+
+	damon_for_each_region(r, t) {
+		KUNIT_EXPECT_EQ(test, r->ar.start, 5ul);
+		KUNIT_EXPECT_EQ(test, r->ar.end, 6ul);
+	}
+	damon_free_target(t);
+	damon_destroy_ctx(c);
+}
+
+static struct kunit_case damon_test_cases[] = {
+	KUNIT_CASE(damon_test_three_regions_in_vmas),
+	KUNIT_CASE(damon_test_apply_three_regions1),
+	KUNIT_CASE(damon_test_apply_three_regions2),
+	KUNIT_CASE(damon_test_apply_three_regions3),
+	KUNIT_CASE(damon_test_apply_three_regions4),
+	KUNIT_CASE(damon_test_split_evenly),
+	{},
+};
+
+static struct kunit_suite damon_test_suite = {
+	.name = "damon-primitives",
+	.test_cases = damon_test_cases,
+};
+kunit_test_suite(damon_test_suite);
+
+#endif /* _DAMON_VADDR_TEST_H */
+
+#endif	/* CONFIG_DAMON_VADDR_KUNIT_TEST */
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 897aa8cf96c83..58c1fb2aafa91 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -18,6 +18,11 @@
 #include <linux/sched/mm.h>
 #include <linux/slab.h>
 
+#ifdef CONFIG_DAMON_VADDR_KUNIT_TEST
+#undef DAMON_MIN_REGION
+#define DAMON_MIN_REGION 1
+#endif
+
 /* Get a random number in [l, r) */
 #define damon_rand(l, r) (l + prandom_u32_max(r - l))
 
@@ -663,3 +668,5 @@ void damon_va_set_primitives(struct damon_ctx *ctx)
 	ctx->primitive.target_valid = damon_va_target_valid;
 	ctx->primitive.cleanup = NULL;
 }
+
+#include "vaddr-test.h"
-- 
GitLab


From 729698e1abb3e3c8c5abed0da69b909260a8a729 Mon Sep 17 00:00:00 2001
From: Adam Borowski <kilobyte@angband.pl>
Date: Fri, 24 Sep 2021 15:43:26 -0700
Subject: [PATCH 4790/4878] UPSTREAM: mm/damon: don't use strnlen() with
 known-bogus source length

gcc knows the true length too, and rightfully complains.

Link: https://lkml.kernel.org/r/20210912204447.10427-1-kilobyte@angband.pl
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Cc: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 892ab4bbd063cfe7f6bbb183e6be69d9907a61de)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ia3ad91fd9541a2e57156a999c5fe3e70efe740fb
---
 mm/damon/dbgfs-test.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/mm/damon/dbgfs-test.h b/mm/damon/dbgfs-test.h
index 930e83bceef03..4eddcfa73996f 100644
--- a/mm/damon/dbgfs-test.h
+++ b/mm/damon/dbgfs-test.h
@@ -20,27 +20,27 @@ static void damon_dbgfs_test_str_to_target_ids(struct kunit *test)
 	ssize_t nr_integers = 0, i;
 
 	question = "123";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
 	KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
 	kfree(answers);
 
 	question = "123abc";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
 	KUNIT_EXPECT_EQ(test, 123ul, answers[0]);
 	kfree(answers);
 
 	question = "a123";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
 	kfree(answers);
 
 	question = "12 35";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
 	for (i = 0; i < nr_integers; i++)
@@ -48,7 +48,7 @@ static void damon_dbgfs_test_str_to_target_ids(struct kunit *test)
 	kfree(answers);
 
 	question = "12 35 46";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)3, nr_integers);
 	for (i = 0; i < nr_integers; i++)
@@ -56,7 +56,7 @@ static void damon_dbgfs_test_str_to_target_ids(struct kunit *test)
 	kfree(answers);
 
 	question = "12 35 abc 46";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
 	for (i = 0; i < 2; i++)
@@ -64,13 +64,13 @@ static void damon_dbgfs_test_str_to_target_ids(struct kunit *test)
 	kfree(answers);
 
 	question = "";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
 	kfree(answers);
 
 	question = "\n";
-	answers = str_to_target_ids(question, strnlen(question, 128),
+	answers = str_to_target_ids(question, strlen(question),
 			&nr_integers);
 	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
 	kfree(answers);
-- 
GitLab


From e24d4d7d21b3c5dcfd46efe58cfdce96607fdeba Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Thu, 28 Oct 2021 14:36:33 -0700
Subject: [PATCH 4791/4878] UPSTREAM: mm/damon/core-test: fix wrong
 expectations for 'damon_split_regions_of()'

Kunit test cases for 'damon_split_regions_of()' expects the number of
regions after calling the function will be same to their request
('nr_sub').  However, the requested number is just an upper-limit,
because the function randomly decides the size of each sub-region.

This fixes the wrong expectation.

Link: https://lkml.kernel.org/r/20211028090628.14948-1-sj@kernel.org
Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 2e014660b3e4b7bd0e75f845cdcf745c0f632889)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I3237d82880ca4308dd4161de9dd957925384a333
---
 mm/damon/core-test.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/damon/core-test.h b/mm/damon/core-test.h
index c938a9c34e6c5..7008c3735e99f 100644
--- a/mm/damon/core-test.h
+++ b/mm/damon/core-test.h
@@ -219,14 +219,14 @@ static void damon_test_split_regions_of(struct kunit *test)
 	r = damon_new_region(0, 22);
 	damon_add_region(r, t);
 	damon_split_regions_of(c, t, 2);
-	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 2u);
+	KUNIT_EXPECT_LE(test, damon_nr_regions(t), 2u);
 	damon_free_target(t);
 
 	t = damon_new_target(42);
 	r = damon_new_region(0, 220);
 	damon_add_region(r, t);
 	damon_split_regions_of(c, t, 4);
-	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 4u);
+	KUNIT_EXPECT_LE(test, damon_nr_regions(t), 4u);
 	damon_free_target(t);
 	damon_destroy_ctx(c);
 }
-- 
GitLab


From 0492d06b2e46c5c70ba630d15b3cdf069158c50d Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 5 Nov 2021 13:45:52 -0700
Subject: [PATCH 4792/4878] UPSTREAM: mm/damon: grammar s/works/work/

Correct a singular versus plural grammar mistake in the help text for
the DAMON_VADDR config symbol.

Link: https://lkml.kernel.org/r/20210914073451.3883834-1-geert@linux-m68k.org
Fixes: 3f49584b262cf8f4 ("mm/damon: implement primitives for the virtual memory address spaces")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit f24b0626076783d56ef41c6459fedf70ab6dcbd0)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I194d0315cb93c2923d066092432e7dc997abe4e0
---
 mm/damon/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 37024798a97ca..ba8898c7eb8eb 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -30,7 +30,7 @@ config DAMON_VADDR
 	select PAGE_IDLE_FLAG
 	help
 	  This builds the default data access monitoring primitives for DAMON
-	  that works for virtual address spaces.
+	  that work for virtual address spaces.
 
 config DAMON_VADDR_KUNIT_TEST
 	bool "Test for DAMON primitives" if !KUNIT_ALL_TESTS
-- 
GitLab


From d09e6d43669fb8da1878b1fb57009827eb4be1fb Mon Sep 17 00:00:00 2001
From: SeongJae Park <sjpark@amazon.de>
Date: Fri, 5 Nov 2021 13:46:04 -0700
Subject: [PATCH 4793/4878] UPSTREAM: include/linux/damon.h: fix kernel-doc
 comments for 'damon_callback'

A few Kernel-doc comments in 'damon.h' are broken.  This fixes them.

Link: https://lkml.kernel.org/r/20210917123958.3819-5-sj@kernel.org
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit d2f272b35a84ace2ef04334a9822fd726a7f061b)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ic57dd7ca6528303cc07f2dca16487820ac100650
---
 include/linux/damon.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index d68b67b8d458d..755d70804705b 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -62,7 +62,7 @@ struct damon_target {
 struct damon_ctx;
 
 /**
- * struct damon_primitive	Monitoring primitives for given use cases.
+ * struct damon_primitive - Monitoring primitives for given use cases.
  *
  * @init:			Initialize primitive-internal data structures.
  * @update:			Update primitive-internal data structures.
@@ -108,8 +108,8 @@ struct damon_primitive {
 	void (*cleanup)(struct damon_ctx *context);
 };
 
-/*
- * struct damon_callback	Monitoring events notification callbacks.
+/**
+ * struct damon_callback - Monitoring events notification callbacks.
  *
  * @before_start:	Called before starting the monitoring.
  * @after_sampling:	Called after each sampling.
-- 
GitLab


From bbc7383c1f4bd55823f7dbf45399563a3fdef1c7 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:06 -0700
Subject: [PATCH 4794/4878] UPSTREAM: mm/damon/core: print kdamond start log in
 debug mode only

Logging of kdamond startup is using 'pr_info()' unnecessarily.  This
makes it to use 'pr_debug()' instead.

Link: https://lkml.kernel.org/r/20210917123958.3819-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 704571f997424ecd64b10b37ca6097e65690240a)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Idf59dd43a8cecfbbe2846bfa81a8c79744ce08c9
---
 mm/damon/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 30e9211f494a7..874558a790a0f 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -653,7 +653,7 @@ static int kdamond_fn(void *data)
 	unsigned long sz_limit = 0;
 
 	mutex_lock(&ctx->kdamond_lock);
-	pr_info("kdamond (%d) starts\n", ctx->kdamond->pid);
+	pr_debug("kdamond (%d) starts\n", ctx->kdamond->pid);
 	mutex_unlock(&ctx->kdamond_lock);
 
 	if (ctx->primitive.init)
-- 
GitLab


From 7aa826a5df8141f18bc8a1afccde0271534a7ba4 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Fri, 5 Nov 2021 13:46:09 -0700
Subject: [PATCH 4795/4878] UPSTREAM: mm/damon: remove unnecessary do_exit()
 from kdamond

Just return from the kthread function.

Link: https://lkml.kernel.org/r/20210927232421.17694-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Cc: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5f7fe2b9b827662cf349ab45406d6cbf0cc6251f)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I3915c829f26c2d6e0e983156bf0229d067b03f4f
---
 mm/damon/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 874558a790a0f..61a9e3b37bc9d 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -714,7 +714,7 @@ static int kdamond_fn(void *data)
 	nr_running_ctxs--;
 	mutex_unlock(&damon_lock);
 
-	do_exit(0);
+	return 0;
 }
 
 #include "core-test.h"
-- 
GitLab


From f6a7b6527d91d926c1f78eaa83cdcd3b960e3682 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Fri, 5 Nov 2021 13:46:12 -0700
Subject: [PATCH 4796/4878] UPSTREAM: mm/damon: needn't hold kdamond_lock to
 print pid of kdamond

Just get the pid by 'current->pid'.  Meanwhile, to be symmetrical make
the 'starts' and 'finishes' logs both use debug level.

Link: https://lkml.kernel.org/r/20210927232432.17750-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 42e4cef5fe48333e0db6e98b019edf5f2c2f11fd)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I6ea6f697795a43663f7c20e87c07cddae891a231
---
 mm/damon/core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 61a9e3b37bc9d..8171e7dddc309 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -652,9 +652,7 @@ static int kdamond_fn(void *data)
 	unsigned int max_nr_accesses = 0;
 	unsigned long sz_limit = 0;
 
-	mutex_lock(&ctx->kdamond_lock);
-	pr_debug("kdamond (%d) starts\n", ctx->kdamond->pid);
-	mutex_unlock(&ctx->kdamond_lock);
+	pr_debug("kdamond (%d) starts\n", current->pid);
 
 	if (ctx->primitive.init)
 		ctx->primitive.init(ctx);
@@ -705,7 +703,7 @@ static int kdamond_fn(void *data)
 	if (ctx->primitive.cleanup)
 		ctx->primitive.cleanup(ctx);
 
-	pr_debug("kdamond (%d) finishes\n", ctx->kdamond->pid);
+	pr_debug("kdamond (%d) finishes\n", current->pid);
 	mutex_lock(&ctx->kdamond_lock);
 	ctx->kdamond = NULL;
 	mutex_unlock(&ctx->kdamond_lock);
-- 
GitLab


From e5a92ffc766e68e5c0075a564ab85e5d8c22c7f9 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Fri, 5 Nov 2021 13:46:15 -0700
Subject: [PATCH 4797/4878] UPSTREAM: mm/damon/core: nullify pointer
 ctx->kdamond with a NULL

Currently a plain integer is being used to nullify the pointer
ctx->kdamond.  Use NULL instead.  Cleans up sparse warning:

  mm/damon/core.c:317:40: warning: Using plain integer as NULL pointer

Link: https://lkml.kernel.org/r/20210925215908.181226-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 7ec1992b891e59dba0f04e0327980786e8f61b13)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Id5f9786633a785fd45bb6b25f0765671a21d3458
---
 mm/damon/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 8171e7dddc309..d993db50280cb 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -314,7 +314,7 @@ static int __damon_start(struct damon_ctx *ctx)
 				nr_running_ctxs);
 		if (IS_ERR(ctx->kdamond)) {
 			err = PTR_ERR(ctx->kdamond);
-			ctx->kdamond = 0;
+			ctx->kdamond = NULL;
 		}
 	}
 	mutex_unlock(&ctx->kdamond_lock);
-- 
GitLab


From a0a2eec57c489bbde7614a5749b4eae7742e62b7 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:18 -0700
Subject: [PATCH 4798/4878] UPSTREAM: mm/damon/core: account age of target
 regions

Patch series "Implement Data Access Monitoring-based Memory Operation Schemes".

Introduction
============

DAMON[1] can be used as a primitive for data access aware memory
management optimizations.  For that, users who want such optimizations
should run DAMON, read the monitoring results, analyze it, plan a new
memory management scheme, and apply the new scheme by themselves.  Such
efforts will be inevitable for some complicated optimizations.

However, in many other cases, the users would simply want the system to
apply a memory management action to a memory region of a specific size
having a specific access frequency for a specific time.  For example,
"page out a memory region larger than 100 MiB keeping only rare accesses
more than 2 minutes", or "Do not use THP for a memory region larger than
2 MiB rarely accessed for more than 1 seconds".

To make the works easier and non-redundant, this patchset implements a
new feature of DAMON, which is called Data Access Monitoring-based
Operation Schemes (DAMOS).  Using the feature, users can describe the
normal schemes in a simple way and ask DAMON to execute those on its
own.

[1] https://damonitor.github.io

Evaluations
===========

DAMOS is accurate and useful for memory management optimizations.  An
experimental DAMON-based operation scheme for THP, 'ethp', removes
76.15% of THP memory overheads while preserving 51.25% of THP speedup.
Another experimental DAMON-based 'proactive reclamation' implementation,
'prcl', reduces 93.38% of residential sets and 23.63% of system memory
footprint while incurring only 1.22% runtime overhead in the best case
(parsec3/freqmine).

NOTE that the experimental THP optimization and proactive reclamation
are not for production but only for proof of concepts.

Please refer to the showcase web site's evaluation document[1] for
detailed evaluation setup and results.

[1] https://damonitor.github.io/doc/html/v34/vm/damon/eval.html

Long-term Support Trees
-----------------------

For people who want to test DAMON but using LTS kernels, there are
another couple of trees based on two latest LTS kernels respectively and
containing the 'damon/master' backports.

- For v5.4.y: https://git.kernel.org/sj/h/damon/for-v5.4.y
- For v5.10.y: https://git.kernel.org/sj/h/damon/for-v5.10.y

Sequence Of Patches
===================

The 1st patch accounts age of each region.  The 2nd patch implements the
core of the DAMON-based operation schemes feature.  The 3rd patch makes
the default monitoring primitives for virtual address spaces to support
the schemes.  From this point, the kernel space users can use DAMOS.
The 4th patch exports the feature to the user space via the debugfs
interface.  The 5th patch implements schemes statistics feature for
easier tuning of the schemes and runtime access pattern analysis, and
the 6th patch adds selftests for these changes.  Finally, the 7th patch
documents this new feature.

This patch (of 7):

DAMON can be used for data access pattern aware memory management
optimizations.  For that, users should run DAMON, read the monitoring
results, analyze it, plan a new memory management scheme, and apply the
new scheme by themselves.  It would not be too hard, but still require
some level of effort.  For complicated cases, this effort is inevitable.

That said, in many cases, users would simply want to apply an actions to
a memory region of a specific size having a specific access frequency
for a specific time.  For example, "page out a memory region larger than
100 MiB but having a low access frequency more than 10 minutes", or "Use
THP for a memory region larger than 2 MiB having a high access frequency
for more than 2 seconds".

For such optimizations, users will need to first account the age of each
region themselves.  To reduce such efforts, this implements a simple age
account of each region in DAMON.  For each aggregation step, DAMON
compares the access frequency with that from last aggregation and reset
the age of the region if the change is significant.  Else, the age is
incremented.  Also, in case of the merge of regions, the region
size-weighted average of the ages is set as the age of merged new
region.

Link: https://lkml.kernel.org/r/20211001125604.29660-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211001125604.29660-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Marco Elver <elver@google.com>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Greg Thelen <gthelen@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: David Rienjes <rientjes@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit fda504fade7f124858d7022341dc46ff35b45274)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ia5ddb3b5ce9c0d14e098a0af55dabf4b6a609aaa
---
 include/linux/damon.h | 10 ++++++++++
 mm/damon/core.c       | 13 +++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 755d70804705b..3e8215debbd47 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -31,12 +31,22 @@ struct damon_addr_range {
  * @sampling_addr:	Address of the sample for the next access check.
  * @nr_accesses:	Access frequency of this region.
  * @list:		List head for siblings.
+ * @age:		Age of this region.
+ *
+ * @age is initially zero, increased for each aggregation interval, and reset
+ * to zero again if the access frequency is significantly changed.  If two
+ * regions are merged into a new region, both @nr_accesses and @age of the new
+ * region are set as region size-weighted average of those of the two regions.
  */
 struct damon_region {
 	struct damon_addr_range ar;
 	unsigned long sampling_addr;
 	unsigned int nr_accesses;
 	struct list_head list;
+
+	unsigned int age;
+/* private: Internal value for age calculation. */
+	unsigned int last_nr_accesses;
 };
 
 /**
diff --git a/mm/damon/core.c b/mm/damon/core.c
index d993db50280cb..3efbe80779db2 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -45,6 +45,9 @@ struct damon_region *damon_new_region(unsigned long start, unsigned long end)
 	region->nr_accesses = 0;
 	INIT_LIST_HEAD(&region->list);
 
+	region->age = 0;
+	region->last_nr_accesses = 0;
+
 	return region;
 }
 
@@ -444,6 +447,7 @@ static void kdamond_reset_aggregated(struct damon_ctx *c)
 
 		damon_for_each_region(r, t) {
 			trace_damon_aggregated(t, r, damon_nr_regions(t));
+			r->last_nr_accesses = r->nr_accesses;
 			r->nr_accesses = 0;
 		}
 	}
@@ -461,6 +465,7 @@ static void damon_merge_two_regions(struct damon_target *t,
 
 	l->nr_accesses = (l->nr_accesses * sz_l + r->nr_accesses * sz_r) /
 			(sz_l + sz_r);
+	l->age = (l->age * sz_l + r->age * sz_r) / (sz_l + sz_r);
 	l->ar.end = r->ar.end;
 	damon_destroy_region(r, t);
 }
@@ -480,6 +485,11 @@ static void damon_merge_regions_of(struct damon_target *t, unsigned int thres,
 	struct damon_region *r, *prev = NULL, *next;
 
 	damon_for_each_region_safe(r, next, t) {
+		if (diff_of(r->nr_accesses, r->last_nr_accesses) > thres)
+			r->age = 0;
+		else
+			r->age++;
+
 		if (prev && prev->ar.end == r->ar.start &&
 		    diff_of(prev->nr_accesses, r->nr_accesses) <= thres &&
 		    sz_damon_region(prev) + sz_damon_region(r) <= sz_limit)
@@ -527,6 +537,9 @@ static void damon_split_region_at(struct damon_ctx *ctx,
 
 	r->ar.end = new->ar.start;
 
+	new->age = r->age;
+	new->last_nr_accesses = r->last_nr_accesses;
+
 	damon_insert_region(new, r, damon_next_region(r), t);
 }
 
-- 
GitLab


From 07cefe8b8c912eda60b3b8e189a9563403ea653b Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:22 -0700
Subject: [PATCH 4799/4878] UPSTREAM: mm/damon/core: implement DAMON-based
 Operation Schemes (DAMOS)

In many cases, users might use DAMON for simple data access aware memory
management optimizations such as applying an operation scheme to a
memory region of a specific size having a specific access frequency for
a specific time.  For example, "page out a memory region larger than 100
MiB but having a low access frequency more than 10 minutes", or "Use THP
for a memory region larger than 2 MiB having a high access frequency for
more than 2 seconds".

Most simple form of the solution would be doing offline data access
pattern profiling using DAMON and modifying the application source code
or system configuration based on the profiling results.  Or, developing
a daemon constructed with two modules (one for access monitoring and the
other for applying memory management actions via mlock(), madvise(),
sysctl, etc) is imaginable.

To avoid users spending their time for implementation of such simple
data access monitoring-based operation schemes, this makes DAMON to
handle such schemes directly.  With this change, users can simply
specify their desired schemes to DAMON.  Then, DAMON will automatically
apply the schemes to the user-specified target processes.

Each of the schemes is composed with conditions for filtering of the
target memory regions and desired memory management action for the
target.  Specifically, the format is::

    <min/max size> <min/max access frequency> <min/max age> <action>

The filtering conditions are size of memory region, number of accesses
to the region monitored by DAMON, and the age of the region.  The age of
region is incremented periodically but reset when its addresses or
access frequency has significantly changed or the action of a scheme was
applied.  For the action, current implementation supports a few of
madvise()-like hints, ``WILLNEED``, ``COLD``, ``PAGEOUT``, ``HUGEPAGE``,
and ``NOHUGEPAGE``.

Because DAMON supports various address spaces and application of the
actions to a monitoring target region is dependent to the type of the
target address space, the application code should be implemented by each
primitives and registered to the framework.  Note that this only
implements the framework part.  Following commit will implement the
action applications for virtual address spaces primitives.

Link: https://lkml.kernel.org/r/20211001125604.29660-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 1f366e421c8f69583ed37b56d86e3747331869c3)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iae8c0d0ade588de0720140fcf6f97a1873f896a0
---
 include/linux/damon.h |  66 +++++++++++++++++++++++++
 mm/damon/core.c       | 109 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 175 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 3e8215debbd47..dbe18b0fb795c 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -69,6 +69,48 @@ struct damon_target {
 	struct list_head list;
 };
 
+/**
+ * enum damos_action - Represents an action of a Data Access Monitoring-based
+ * Operation Scheme.
+ *
+ * @DAMOS_WILLNEED:	Call ``madvise()`` for the region with MADV_WILLNEED.
+ * @DAMOS_COLD:		Call ``madvise()`` for the region with MADV_COLD.
+ * @DAMOS_PAGEOUT:	Call ``madvise()`` for the region with MADV_PAGEOUT.
+ * @DAMOS_HUGEPAGE:	Call ``madvise()`` for the region with MADV_HUGEPAGE.
+ * @DAMOS_NOHUGEPAGE:	Call ``madvise()`` for the region with MADV_NOHUGEPAGE.
+ */
+enum damos_action {
+	DAMOS_WILLNEED,
+	DAMOS_COLD,
+	DAMOS_PAGEOUT,
+	DAMOS_HUGEPAGE,
+	DAMOS_NOHUGEPAGE,
+};
+
+/**
+ * struct damos - Represents a Data Access Monitoring-based Operation Scheme.
+ * @min_sz_region:	Minimum size of target regions.
+ * @max_sz_region:	Maximum size of target regions.
+ * @min_nr_accesses:	Minimum ``->nr_accesses`` of target regions.
+ * @max_nr_accesses:	Maximum ``->nr_accesses`` of target regions.
+ * @min_age_region:	Minimum age of target regions.
+ * @max_age_region:	Maximum age of target regions.
+ * @action:		&damo_action to be applied to the target regions.
+ * @list:		List head for siblings.
+ *
+ * Note that both the minimums and the maximums are inclusive.
+ */
+struct damos {
+	unsigned long min_sz_region;
+	unsigned long max_sz_region;
+	unsigned int min_nr_accesses;
+	unsigned int max_nr_accesses;
+	unsigned int min_age_region;
+	unsigned int max_age_region;
+	enum damos_action action;
+	struct list_head list;
+};
+
 struct damon_ctx;
 
 /**
@@ -79,6 +121,7 @@ struct damon_ctx;
  * @prepare_access_checks:	Prepare next access check of target regions.
  * @check_accesses:		Check the accesses to target regions.
  * @reset_aggregated:		Reset aggregated accesses monitoring results.
+ * @apply_scheme:		Apply a DAMON-based operation scheme.
  * @target_valid:		Determine if the target is valid.
  * @cleanup:			Clean up the context.
  *
@@ -104,6 +147,9 @@ struct damon_ctx;
  * of its update.  The value will be used for regions adjustment threshold.
  * @reset_aggregated should reset the access monitoring results that aggregated
  * by @check_accesses.
+ * @apply_scheme is called from @kdamond when a region for user provided
+ * DAMON-based operation scheme is found.  It should apply the scheme's action
+ * to the region.  This is not used for &DAMON_ARBITRARY_TARGET case.
  * @target_valid should check whether the target is still valid for the
  * monitoring.
  * @cleanup is called from @kdamond just before its termination.
@@ -114,6 +160,8 @@ struct damon_primitive {
 	void (*prepare_access_checks)(struct damon_ctx *context);
 	unsigned int (*check_accesses)(struct damon_ctx *context);
 	void (*reset_aggregated)(struct damon_ctx *context);
+	int (*apply_scheme)(struct damon_ctx *context, struct damon_target *t,
+			struct damon_region *r, struct damos *scheme);
 	bool (*target_valid)(void *target);
 	void (*cleanup)(struct damon_ctx *context);
 };
@@ -192,6 +240,7 @@ struct damon_callback {
  * @min_nr_regions:	The minimum number of adaptive monitoring regions.
  * @max_nr_regions:	The maximum number of adaptive monitoring regions.
  * @adaptive_targets:	Head of monitoring targets (&damon_target) list.
+ * @schemes:		Head of schemes (&damos) list.
  */
 struct damon_ctx {
 	unsigned long sample_interval;
@@ -213,6 +262,7 @@ struct damon_ctx {
 	unsigned long min_nr_regions;
 	unsigned long max_nr_regions;
 	struct list_head adaptive_targets;
+	struct list_head schemes;
 };
 
 #define damon_next_region(r) \
@@ -233,6 +283,12 @@ struct damon_ctx {
 #define damon_for_each_target_safe(t, next, ctx)	\
 	list_for_each_entry_safe(t, next, &(ctx)->adaptive_targets, list)
 
+#define damon_for_each_scheme(s, ctx) \
+	list_for_each_entry(s, &(ctx)->schemes, list)
+
+#define damon_for_each_scheme_safe(s, next, ctx) \
+	list_for_each_entry_safe(s, next, &(ctx)->schemes, list)
+
 #ifdef CONFIG_DAMON
 
 struct damon_region *damon_new_region(unsigned long start, unsigned long end);
@@ -242,6 +298,14 @@ inline void damon_insert_region(struct damon_region *r,
 void damon_add_region(struct damon_region *r, struct damon_target *t);
 void damon_destroy_region(struct damon_region *r, struct damon_target *t);
 
+struct damos *damon_new_scheme(
+		unsigned long min_sz_region, unsigned long max_sz_region,
+		unsigned int min_nr_accesses, unsigned int max_nr_accesses,
+		unsigned int min_age_region, unsigned int max_age_region,
+		enum damos_action action);
+void damon_add_scheme(struct damon_ctx *ctx, struct damos *s);
+void damon_destroy_scheme(struct damos *s);
+
 struct damon_target *damon_new_target(unsigned long id);
 void damon_add_target(struct damon_ctx *ctx, struct damon_target *t);
 void damon_free_target(struct damon_target *t);
@@ -255,6 +319,8 @@ int damon_set_targets(struct damon_ctx *ctx,
 int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
 		unsigned long aggr_int, unsigned long primitive_upd_int,
 		unsigned long min_nr_reg, unsigned long max_nr_reg);
+int damon_set_schemes(struct damon_ctx *ctx,
+			struct damos **schemes, ssize_t nr_schemes);
 int damon_nr_running_ctxs(void);
 
 int damon_start(struct damon_ctx **ctxs, int nr_ctxs);
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 3efbe80779db2..0ed97b21cbb6e 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -85,6 +85,50 @@ void damon_destroy_region(struct damon_region *r, struct damon_target *t)
 	damon_free_region(r);
 }
 
+struct damos *damon_new_scheme(
+		unsigned long min_sz_region, unsigned long max_sz_region,
+		unsigned int min_nr_accesses, unsigned int max_nr_accesses,
+		unsigned int min_age_region, unsigned int max_age_region,
+		enum damos_action action)
+{
+	struct damos *scheme;
+
+	scheme = kmalloc(sizeof(*scheme), GFP_KERNEL);
+	if (!scheme)
+		return NULL;
+	scheme->min_sz_region = min_sz_region;
+	scheme->max_sz_region = max_sz_region;
+	scheme->min_nr_accesses = min_nr_accesses;
+	scheme->max_nr_accesses = max_nr_accesses;
+	scheme->min_age_region = min_age_region;
+	scheme->max_age_region = max_age_region;
+	scheme->action = action;
+	INIT_LIST_HEAD(&scheme->list);
+
+	return scheme;
+}
+
+void damon_add_scheme(struct damon_ctx *ctx, struct damos *s)
+{
+	list_add_tail(&s->list, &ctx->schemes);
+}
+
+static void damon_del_scheme(struct damos *s)
+{
+	list_del(&s->list);
+}
+
+static void damon_free_scheme(struct damos *s)
+{
+	kfree(s);
+}
+
+void damon_destroy_scheme(struct damos *s)
+{
+	damon_del_scheme(s);
+	damon_free_scheme(s);
+}
+
 /*
  * Construct a damon_target struct
  *
@@ -156,6 +200,7 @@ struct damon_ctx *damon_new_ctx(void)
 	ctx->max_nr_regions = 1000;
 
 	INIT_LIST_HEAD(&ctx->adaptive_targets);
+	INIT_LIST_HEAD(&ctx->schemes);
 
 	return ctx;
 }
@@ -175,7 +220,13 @@ static void damon_destroy_targets(struct damon_ctx *ctx)
 
 void damon_destroy_ctx(struct damon_ctx *ctx)
 {
+	struct damos *s, *next_s;
+
 	damon_destroy_targets(ctx);
+
+	damon_for_each_scheme_safe(s, next_s, ctx)
+		damon_destroy_scheme(s);
+
 	kfree(ctx);
 }
 
@@ -250,6 +301,30 @@ int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
 	return 0;
 }
 
+/**
+ * damon_set_schemes() - Set data access monitoring based operation schemes.
+ * @ctx:	monitoring context
+ * @schemes:	array of the schemes
+ * @nr_schemes:	number of entries in @schemes
+ *
+ * This function should not be called while the kdamond of the context is
+ * running.
+ *
+ * Return: 0 if success, or negative error code otherwise.
+ */
+int damon_set_schemes(struct damon_ctx *ctx, struct damos **schemes,
+			ssize_t nr_schemes)
+{
+	struct damos *s, *next;
+	ssize_t i;
+
+	damon_for_each_scheme_safe(s, next, ctx)
+		damon_destroy_scheme(s);
+	for (i = 0; i < nr_schemes; i++)
+		damon_add_scheme(ctx, schemes[i]);
+	return 0;
+}
+
 /**
  * damon_nr_running_ctxs() - Return number of currently running contexts.
  */
@@ -453,6 +528,39 @@ static void kdamond_reset_aggregated(struct damon_ctx *c)
 	}
 }
 
+static void damon_do_apply_schemes(struct damon_ctx *c,
+				   struct damon_target *t,
+				   struct damon_region *r)
+{
+	struct damos *s;
+	unsigned long sz;
+
+	damon_for_each_scheme(s, c) {
+		sz = r->ar.end - r->ar.start;
+		if (sz < s->min_sz_region || s->max_sz_region < sz)
+			continue;
+		if (r->nr_accesses < s->min_nr_accesses ||
+				s->max_nr_accesses < r->nr_accesses)
+			continue;
+		if (r->age < s->min_age_region || s->max_age_region < r->age)
+			continue;
+		if (c->primitive.apply_scheme)
+			c->primitive.apply_scheme(c, t, r, s);
+		r->age = 0;
+	}
+}
+
+static void kdamond_apply_schemes(struct damon_ctx *c)
+{
+	struct damon_target *t;
+	struct damon_region *r;
+
+	damon_for_each_target(t, c) {
+		damon_for_each_region(r, t)
+			damon_do_apply_schemes(c, t, r);
+	}
+}
+
 #define sz_damon_region(r) (r->ar.end - r->ar.start)
 
 /*
@@ -693,6 +801,7 @@ static int kdamond_fn(void *data)
 			if (ctx->callback.after_aggregation &&
 					ctx->callback.after_aggregation(ctx))
 				set_kdamond_stop(ctx);
+			kdamond_apply_schemes(ctx);
 			kdamond_reset_aggregated(ctx);
 			kdamond_split_regions(ctx);
 			if (ctx->primitive.reset_aggregated)
-- 
GitLab


From 77091caf831bfa08cf68bc3bd80480b4880f9f28 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:25 -0700
Subject: [PATCH 4800/4878] UPSTREAM: mm/damon/vaddr: support DAMON-based
 Operation Schemes

This makes DAMON's default primitives for virtual address spaces to
support DAMON-based Operation Schemes (DAMOS) by implementing actions
application functions and registering it to the monitoring context.  The
implementation simply links 'madvise()' for related DAMOS actions.  That
is, 'madvise(MADV_WILLNEED)' is called for 'WILLNEED' DAMOS action and
similar for other actions ('COLD', 'PAGEOUT', 'HUGEPAGE', 'NOHUGEPAGE').

So, the kernel space DAMON users can now use the DAMON-based
optimizations with only small amount of code.

Link: https://lkml.kernel.org/r/20211001125604.29660-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 6dea8add4d2875b80843e4a4c8acd334a4db8c8f)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I791dacf0f965deaed4a9fca155aa376764927b46
---
 include/linux/damon.h |  2 ++
 mm/damon/vaddr.c      | 56 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index dbe18b0fb795c..be6b6e81e8ee1 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -337,6 +337,8 @@ void damon_va_prepare_access_checks(struct damon_ctx *ctx);
 unsigned int damon_va_check_accesses(struct damon_ctx *ctx);
 bool damon_va_target_valid(void *t);
 void damon_va_cleanup(struct damon_ctx *ctx);
+int damon_va_apply_scheme(struct damon_ctx *context, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme);
 void damon_va_set_primitives(struct damon_ctx *ctx);
 
 #endif	/* CONFIG_DAMON_VADDR */
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 58c1fb2aafa91..3e1c74d36bab7 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -7,6 +7,7 @@
 
 #define pr_fmt(fmt) "damon-va: " fmt
 
+#include <asm-generic/mman-common.h>
 #include <linux/damon.h>
 #include <linux/hugetlb.h>
 #include <linux/mm.h>
@@ -658,6 +659,60 @@ bool damon_va_target_valid(void *target)
 	return false;
 }
 
+#ifndef CONFIG_ADVISE_SYSCALLS
+static int damos_madvise(struct damon_target *target, struct damon_region *r,
+			int behavior)
+{
+	return -EINVAL;
+}
+#else
+static int damos_madvise(struct damon_target *target, struct damon_region *r,
+			int behavior)
+{
+	struct mm_struct *mm;
+	int ret = -ENOMEM;
+
+	mm = damon_get_mm(target);
+	if (!mm)
+		goto out;
+
+	ret = do_madvise(mm, PAGE_ALIGN(r->ar.start),
+			PAGE_ALIGN(r->ar.end - r->ar.start), behavior);
+	mmput(mm);
+out:
+	return ret;
+}
+#endif	/* CONFIG_ADVISE_SYSCALLS */
+
+int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme)
+{
+	int madv_action;
+
+	switch (scheme->action) {
+	case DAMOS_WILLNEED:
+		madv_action = MADV_WILLNEED;
+		break;
+	case DAMOS_COLD:
+		madv_action = MADV_COLD;
+		break;
+	case DAMOS_PAGEOUT:
+		madv_action = MADV_PAGEOUT;
+		break;
+	case DAMOS_HUGEPAGE:
+		madv_action = MADV_HUGEPAGE;
+		break;
+	case DAMOS_NOHUGEPAGE:
+		madv_action = MADV_NOHUGEPAGE;
+		break;
+	default:
+		pr_warn("Wrong action %d\n", scheme->action);
+		return -EINVAL;
+	}
+
+	return damos_madvise(t, r, madv_action);
+}
+
 void damon_va_set_primitives(struct damon_ctx *ctx)
 {
 	ctx->primitive.init = damon_va_init;
@@ -667,6 +722,7 @@ void damon_va_set_primitives(struct damon_ctx *ctx)
 	ctx->primitive.reset_aggregated = NULL;
 	ctx->primitive.target_valid = damon_va_target_valid;
 	ctx->primitive.cleanup = NULL;
+	ctx->primitive.apply_scheme = damon_va_apply_scheme;
 }
 
 #include "vaddr-test.h"
-- 
GitLab


From 59e4256bb06ff00e71826a8fe09789a43379c05c Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:29 -0700
Subject: [PATCH 4801/4878] UPSTREAM: mm/damon/dbgfs: support DAMON-based
 Operation Schemes

This makes 'damon-dbgfs' to support the data access monitoring oriented
memory management schemes.  Users can read and update the schemes using
``<debugfs>/damon/schemes`` file.  The format is::

    <min/max size> <min/max access frequency> <min/max age> <action>

Link: https://lkml.kernel.org/r/20211001125604.29660-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit af122dd8f3c0099349bc98ff69f0d90efd8b149f)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I0ef1d7cc491f93ae6baaefbf9dc47ee342807069
---
 mm/damon/dbgfs.c | 165 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 162 insertions(+), 3 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index faee070977d80..78b7a04490c57 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -98,6 +98,159 @@ out:
 	return ret;
 }
 
+static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
+{
+	struct damos *s;
+	int written = 0;
+	int rc;
+
+	damon_for_each_scheme(s, c) {
+		rc = scnprintf(&buf[written], len - written,
+				"%lu %lu %u %u %u %u %d\n",
+				s->min_sz_region, s->max_sz_region,
+				s->min_nr_accesses, s->max_nr_accesses,
+				s->min_age_region, s->max_age_region,
+				s->action);
+		if (!rc)
+			return -ENOMEM;
+
+		written += rc;
+	}
+	return written;
+}
+
+static ssize_t dbgfs_schemes_read(struct file *file, char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char *kbuf;
+	ssize_t len;
+
+	kbuf = kmalloc(count, GFP_KERNEL);
+	if (!kbuf)
+		return -ENOMEM;
+
+	mutex_lock(&ctx->kdamond_lock);
+	len = sprint_schemes(ctx, kbuf, count);
+	mutex_unlock(&ctx->kdamond_lock);
+	if (len < 0)
+		goto out;
+	len = simple_read_from_buffer(buf, count, ppos, kbuf, len);
+
+out:
+	kfree(kbuf);
+	return len;
+}
+
+static void free_schemes_arr(struct damos **schemes, ssize_t nr_schemes)
+{
+	ssize_t i;
+
+	for (i = 0; i < nr_schemes; i++)
+		kfree(schemes[i]);
+	kfree(schemes);
+}
+
+static bool damos_action_valid(int action)
+{
+	switch (action) {
+	case DAMOS_WILLNEED:
+	case DAMOS_COLD:
+	case DAMOS_PAGEOUT:
+	case DAMOS_HUGEPAGE:
+	case DAMOS_NOHUGEPAGE:
+		return true;
+	default:
+		return false;
+	}
+}
+
+/*
+ * Converts a string into an array of struct damos pointers
+ *
+ * Returns an array of struct damos pointers that converted if the conversion
+ * success, or NULL otherwise.
+ */
+static struct damos **str_to_schemes(const char *str, ssize_t len,
+				ssize_t *nr_schemes)
+{
+	struct damos *scheme, **schemes;
+	const int max_nr_schemes = 256;
+	int pos = 0, parsed, ret;
+	unsigned long min_sz, max_sz;
+	unsigned int min_nr_a, max_nr_a, min_age, max_age;
+	unsigned int action;
+
+	schemes = kmalloc_array(max_nr_schemes, sizeof(scheme),
+			GFP_KERNEL);
+	if (!schemes)
+		return NULL;
+
+	*nr_schemes = 0;
+	while (pos < len && *nr_schemes < max_nr_schemes) {
+		ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u%n",
+				&min_sz, &max_sz, &min_nr_a, &max_nr_a,
+				&min_age, &max_age, &action, &parsed);
+		if (ret != 7)
+			break;
+		if (!damos_action_valid(action)) {
+			pr_err("wrong action %d\n", action);
+			goto fail;
+		}
+
+		pos += parsed;
+		scheme = damon_new_scheme(min_sz, max_sz, min_nr_a, max_nr_a,
+				min_age, max_age, action);
+		if (!scheme)
+			goto fail;
+
+		schemes[*nr_schemes] = scheme;
+		*nr_schemes += 1;
+	}
+	return schemes;
+fail:
+	free_schemes_arr(schemes, *nr_schemes);
+	return NULL;
+}
+
+static ssize_t dbgfs_schemes_write(struct file *file, const char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char *kbuf;
+	struct damos **schemes;
+	ssize_t nr_schemes = 0, ret = count;
+	int err;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	schemes = str_to_schemes(kbuf, ret, &nr_schemes);
+	if (!schemes) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond) {
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	err = damon_set_schemes(ctx, schemes, nr_schemes);
+	if (err)
+		ret = err;
+	else
+		nr_schemes = 0;
+unlock_out:
+	mutex_unlock(&ctx->kdamond_lock);
+	free_schemes_arr(schemes, nr_schemes);
+out:
+	kfree(kbuf);
+	return ret;
+}
+
 static inline bool targetid_is_pid(const struct damon_ctx *ctx)
 {
 	return ctx->primitive.target_valid == damon_va_target_valid;
@@ -279,6 +432,12 @@ static const struct file_operations attrs_fops = {
 	.write = dbgfs_attrs_write,
 };
 
+static const struct file_operations schemes_fops = {
+	.open = damon_dbgfs_open,
+	.read = dbgfs_schemes_read,
+	.write = dbgfs_schemes_write,
+};
+
 static const struct file_operations target_ids_fops = {
 	.open = damon_dbgfs_open,
 	.read = dbgfs_target_ids_read,
@@ -292,10 +451,10 @@ static const struct file_operations kdamond_pid_fops = {
 
 static void dbgfs_fill_ctx_dir(struct dentry *dir, struct damon_ctx *ctx)
 {
-	const char * const file_names[] = {"attrs", "target_ids",
+	const char * const file_names[] = {"attrs", "schemes", "target_ids",
 		"kdamond_pid"};
-	const struct file_operations *fops[] = {&attrs_fops, &target_ids_fops,
-		&kdamond_pid_fops};
+	const struct file_operations *fops[] = {&attrs_fops, &schemes_fops,
+		&target_ids_fops, &kdamond_pid_fops};
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(file_names); i++)
-- 
GitLab


From fe2da2d930663da40b921e3b3fead6a91d72cc2b Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:32 -0700
Subject: [PATCH 4802/4878] UPSTREAM: mm/damon/schemes: implement statistics
 feature

To tune the DAMON-based operation schemes, knowing how many and how
large regions are affected by each of the schemes will be helful.  Those
stats could be used for not only the tuning, but also monitoring of the
working set size and the number of regions, if the scheme does not
change the program behavior too much.

For the reason, this implements the statistics for the schemes.  The
total number and size of the regions that each scheme is applied are
exported to users via '->stat_count' and '->stat_sz' of 'struct damos'.
Admins can also check the number by reading 'schemes' debugfs file.  The
last two integers now represents the stats.  To allow collecting the
stats without changing the program behavior, this also adds new scheme
action, 'DAMOS_STAT'.  Note that 'DAMOS_STAT' is not only making no
memory operation actions, but also does not reset the age of regions.

Link: https://lkml.kernel.org/r/20211001125604.29660-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 2f0b548c9f03a78f4ce6ab48986e3108028936a6)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Id485ee13922bd769075a77e7263380db32a15544
---
 include/linux/damon.h | 10 +++++++++-
 mm/damon/core.c       |  7 ++++++-
 mm/damon/dbgfs.c      |  5 +++--
 mm/damon/vaddr.c      |  2 ++
 4 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index be6b6e81e8ee1..f301bb53381c1 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -78,6 +78,7 @@ struct damon_target {
  * @DAMOS_PAGEOUT:	Call ``madvise()`` for the region with MADV_PAGEOUT.
  * @DAMOS_HUGEPAGE:	Call ``madvise()`` for the region with MADV_HUGEPAGE.
  * @DAMOS_NOHUGEPAGE:	Call ``madvise()`` for the region with MADV_NOHUGEPAGE.
+ * @DAMOS_STAT:		Do nothing but count the stat.
  */
 enum damos_action {
 	DAMOS_WILLNEED,
@@ -85,6 +86,7 @@ enum damos_action {
 	DAMOS_PAGEOUT,
 	DAMOS_HUGEPAGE,
 	DAMOS_NOHUGEPAGE,
+	DAMOS_STAT,		/* Do nothing but only record the stat */
 };
 
 /**
@@ -96,9 +98,13 @@ enum damos_action {
  * @min_age_region:	Minimum age of target regions.
  * @max_age_region:	Maximum age of target regions.
  * @action:		&damo_action to be applied to the target regions.
+ * @stat_count:		Total number of regions that this scheme is applied.
+ * @stat_sz:		Total size of regions that this scheme is applied.
  * @list:		List head for siblings.
  *
- * Note that both the minimums and the maximums are inclusive.
+ * For each aggregation interval, DAMON applies @action to monitoring target
+ * regions fit in the condition and updates the statistics.  Note that both
+ * the minimums and the maximums are inclusive.
  */
 struct damos {
 	unsigned long min_sz_region;
@@ -108,6 +114,8 @@ struct damos {
 	unsigned int min_age_region;
 	unsigned int max_age_region;
 	enum damos_action action;
+	unsigned long stat_count;
+	unsigned long stat_sz;
 	struct list_head list;
 };
 
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 0ed97b21cbb6e..2f6785737902d 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -103,6 +103,8 @@ struct damos *damon_new_scheme(
 	scheme->min_age_region = min_age_region;
 	scheme->max_age_region = max_age_region;
 	scheme->action = action;
+	scheme->stat_count = 0;
+	scheme->stat_sz = 0;
 	INIT_LIST_HEAD(&scheme->list);
 
 	return scheme;
@@ -544,9 +546,12 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 			continue;
 		if (r->age < s->min_age_region || s->max_age_region < r->age)
 			continue;
+		s->stat_count++;
+		s->stat_sz += sz;
 		if (c->primitive.apply_scheme)
 			c->primitive.apply_scheme(c, t, r, s);
-		r->age = 0;
+		if (s->action != DAMOS_STAT)
+			r->age = 0;
 	}
 }
 
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 78b7a04490c57..28d6abf277636 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -106,11 +106,11 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 
 	damon_for_each_scheme(s, c) {
 		rc = scnprintf(&buf[written], len - written,
-				"%lu %lu %u %u %u %u %d\n",
+				"%lu %lu %u %u %u %u %d %lu %lu\n",
 				s->min_sz_region, s->max_sz_region,
 				s->min_nr_accesses, s->max_nr_accesses,
 				s->min_age_region, s->max_age_region,
-				s->action);
+				s->action, s->stat_count, s->stat_sz);
 		if (!rc)
 			return -ENOMEM;
 
@@ -159,6 +159,7 @@ static bool damos_action_valid(int action)
 	case DAMOS_PAGEOUT:
 	case DAMOS_HUGEPAGE:
 	case DAMOS_NOHUGEPAGE:
+	case DAMOS_STAT:
 		return true;
 	default:
 		return false;
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 3e1c74d36bab7..953c145b4f08a 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -705,6 +705,8 @@ int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	case DAMOS_NOHUGEPAGE:
 		madv_action = MADV_NOHUGEPAGE;
 		break;
+	case DAMOS_STAT:
+		return 0;
 	default:
 		pr_warn("Wrong action %d\n", scheme->action);
 		return -EINVAL;
-- 
GitLab


From 99510047c7ec4159d1c54dbec86b1db518e178ca Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:36 -0700
Subject: [PATCH 4803/4878] UPSTREAM: selftests/damon: add 'schemes' debugfs
 tests

This adds simple selftets for 'schemes' debugfs file of DAMON.

Link: https://lkml.kernel.org/r/20211001125604.29660-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 8d5d4c6359054f3e680e1a2caca50e9b6d688b7d)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I5858f06af5169aca20bab3d871e4a0dd532b0a86
---
 tools/testing/selftests/damon/debugfs_attrs.sh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
index bfabb19dc0d3d..639cfb6a1f651 100644
--- a/tools/testing/selftests/damon/debugfs_attrs.sh
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -57,6 +57,19 @@ test_write_fail "$file" "1 2 3 5 4" "$orig_content" \
 test_content "$file" "$orig_content" "1 2 3 4 5" "successfully written"
 echo "$orig_content" > "$file"
 
+# Test schemes file
+# =================
+
+file="$DBGFS/schemes"
+orig_content=$(cat "$file")
+
+test_write_succ "$file" "1 2 3 4 5 6 4" \
+	"$orig_content" "valid input"
+test_write_fail "$file" "1 2
+3 4 5 6 3" "$orig_content" "multi lines"
+test_write_succ "$file" "" "$orig_content" "disabling"
+echo "$orig_content" > "$file"
+
 # Test target_ids file
 # ====================
 
-- 
GitLab


From 2c807d1f1fff6e149f9f32251e1e4f3f720ff84c Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:42 -0700
Subject: [PATCH 4804/4878] UPSTREAM: mm/damon/dbgfs: allow users to set
 initial monitoring target regions

Patch series "DAMON: Support Physical Memory Address Space Monitoring:.

DAMON currently supports only virtual address spaces monitoring.  It can
be easily extended for various use cases and address spaces by
configuring its monitoring primitives layer to use appropriate
primitives implementations, though.  This patchset implements monitoring
primitives for the physical address space monitoring using the
structure.

The first 3 patches allow the user space users manually set the
monitoring regions.  The 1st patch implements the feature in the
'damon-dbgfs'.  Then, patches for adding a unit tests (the 2nd patch)
and updating the documentation (the 3rd patch) follow.

Following 4 patches implement the physical address space monitoring
primitives.  The 4th patch makes some primitive functions for the
virtual address spaces primitives reusable.  The 5th patch implements
the physical address space monitoring primitives.  The 6th patch links
the primitives to the 'damon-dbgfs'.  Finally, 7th patch documents this
new features.

This patch (of 7):

Some 'damon-dbgfs' users would want to monitor only a part of the entire
virtual memory address space.  The program interface users in the kernel
space could use '->before_start()' callback or set the regions inside
the context struct as they want, but 'damon-dbgfs' users cannot.

For that reason, this introduces a new debugfs file called
'init_region'.  'damon-dbgfs' users can specify which initial monitoring
target address regions they want by writing special input to the file.
The input should describe each region in each line in the below form:

    <pid> <start address> <end address>

Note that the regions will be updated to cover entire memory mapped
regions after a 'regions update interval' is passed.  If you want the
regions to not be updated after the initial setting, you could set the
interval as a very long time, say, a few decades.

Link: https://lkml.kernel.org/r/20211012205711.29216-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211012205711.29216-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Marco Elver <elver@google.com>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Greg Thelen <gthelen@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: David Rienjes <rientjes@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 90bebce9fcd6488ba6b010af3a16a0a0d7e44cb6)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Idb8961fbe0d851f9b4a1da6b42dfff291d86eae2
---
 mm/damon/dbgfs.c | 156 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 154 insertions(+), 2 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 28d6abf277636..1cce53cd241d0 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -394,6 +394,152 @@ out:
 	return ret;
 }
 
+static ssize_t sprint_init_regions(struct damon_ctx *c, char *buf, ssize_t len)
+{
+	struct damon_target *t;
+	struct damon_region *r;
+	int written = 0;
+	int rc;
+
+	damon_for_each_target(t, c) {
+		damon_for_each_region(r, t) {
+			rc = scnprintf(&buf[written], len - written,
+					"%lu %lu %lu\n",
+					t->id, r->ar.start, r->ar.end);
+			if (!rc)
+				return -ENOMEM;
+			written += rc;
+		}
+	}
+	return written;
+}
+
+static ssize_t dbgfs_init_regions_read(struct file *file, char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char *kbuf;
+	ssize_t len;
+
+	kbuf = kmalloc(count, GFP_KERNEL);
+	if (!kbuf)
+		return -ENOMEM;
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond) {
+		mutex_unlock(&ctx->kdamond_lock);
+		len = -EBUSY;
+		goto out;
+	}
+
+	len = sprint_init_regions(ctx, kbuf, count);
+	mutex_unlock(&ctx->kdamond_lock);
+	if (len < 0)
+		goto out;
+	len = simple_read_from_buffer(buf, count, ppos, kbuf, len);
+
+out:
+	kfree(kbuf);
+	return len;
+}
+
+static int add_init_region(struct damon_ctx *c,
+			 unsigned long target_id, struct damon_addr_range *ar)
+{
+	struct damon_target *t;
+	struct damon_region *r, *prev;
+	unsigned long id;
+	int rc = -EINVAL;
+
+	if (ar->start >= ar->end)
+		return -EINVAL;
+
+	damon_for_each_target(t, c) {
+		id = t->id;
+		if (targetid_is_pid(c))
+			id = (unsigned long)pid_vnr((struct pid *)id);
+		if (id == target_id) {
+			r = damon_new_region(ar->start, ar->end);
+			if (!r)
+				return -ENOMEM;
+			damon_add_region(r, t);
+			if (damon_nr_regions(t) > 1) {
+				prev = damon_prev_region(r);
+				if (prev->ar.end > r->ar.start) {
+					damon_destroy_region(r, t);
+					return -EINVAL;
+				}
+			}
+			rc = 0;
+		}
+	}
+	return rc;
+}
+
+static int set_init_regions(struct damon_ctx *c, const char *str, ssize_t len)
+{
+	struct damon_target *t;
+	struct damon_region *r, *next;
+	int pos = 0, parsed, ret;
+	unsigned long target_id;
+	struct damon_addr_range ar;
+	int err;
+
+	damon_for_each_target(t, c) {
+		damon_for_each_region_safe(r, next, t)
+			damon_destroy_region(r, t);
+	}
+
+	while (pos < len) {
+		ret = sscanf(&str[pos], "%lu %lu %lu%n",
+				&target_id, &ar.start, &ar.end, &parsed);
+		if (ret != 3)
+			break;
+		err = add_init_region(c, target_id, &ar);
+		if (err)
+			goto fail;
+		pos += parsed;
+	}
+
+	return 0;
+
+fail:
+	damon_for_each_target(t, c) {
+		damon_for_each_region_safe(r, next, t)
+			damon_destroy_region(r, t);
+	}
+	return err;
+}
+
+static ssize_t dbgfs_init_regions_write(struct file *file,
+					  const char __user *buf, size_t count,
+					  loff_t *ppos)
+{
+	struct damon_ctx *ctx = file->private_data;
+	char *kbuf;
+	ssize_t ret = count;
+	int err;
+
+	kbuf = user_input_str(buf, count, ppos);
+	if (IS_ERR(kbuf))
+		return PTR_ERR(kbuf);
+
+	mutex_lock(&ctx->kdamond_lock);
+	if (ctx->kdamond) {
+		ret = -EBUSY;
+		goto unlock_out;
+	}
+
+	err = set_init_regions(ctx, kbuf, ret);
+	if (err)
+		ret = err;
+
+unlock_out:
+	mutex_unlock(&ctx->kdamond_lock);
+	kfree(kbuf);
+	return ret;
+}
+
 static ssize_t dbgfs_kdamond_pid_read(struct file *file,
 		char __user *buf, size_t count, loff_t *ppos)
 {
@@ -445,6 +591,12 @@ static const struct file_operations target_ids_fops = {
 	.write = dbgfs_target_ids_write,
 };
 
+static const struct file_operations init_regions_fops = {
+	.open = damon_dbgfs_open,
+	.read = dbgfs_init_regions_read,
+	.write = dbgfs_init_regions_write,
+};
+
 static const struct file_operations kdamond_pid_fops = {
 	.open = damon_dbgfs_open,
 	.read = dbgfs_kdamond_pid_read,
@@ -453,9 +605,9 @@ static const struct file_operations kdamond_pid_fops = {
 static void dbgfs_fill_ctx_dir(struct dentry *dir, struct damon_ctx *ctx)
 {
 	const char * const file_names[] = {"attrs", "schemes", "target_ids",
-		"kdamond_pid"};
+		"init_regions", "kdamond_pid"};
 	const struct file_operations *fops[] = {&attrs_fops, &schemes_fops,
-		&target_ids_fops, &kdamond_pid_fops};
+		&target_ids_fops, &init_regions_fops, &kdamond_pid_fops};
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(file_names); i++)
-- 
GitLab


From 319f3accc78aa9d044c38ea71c6c0562f38ec140 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:46 -0700
Subject: [PATCH 4805/4878] UPSTREAM: mm/damon/dbgfs-test: add a unit test case
 for 'init_regions'

This adds another test case for the new feature, 'init_regions'.

Link: https://lkml.kernel.org/r/20211012205711.29216-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 1c2e11bfa649cc07e6322b0e5ea3cdbada9c43c3)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I99ea9f6aa40f3b241bedd0a8434d41a49ac8fea5
---
 mm/damon/dbgfs-test.h | 54 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/mm/damon/dbgfs-test.h b/mm/damon/dbgfs-test.h
index 4eddcfa73996f..104b22957616b 100644
--- a/mm/damon/dbgfs-test.h
+++ b/mm/damon/dbgfs-test.h
@@ -109,9 +109,63 @@ static void damon_dbgfs_test_set_targets(struct kunit *test)
 	dbgfs_destroy_ctx(ctx);
 }
 
+static void damon_dbgfs_test_set_init_regions(struct kunit *test)
+{
+	struct damon_ctx *ctx = damon_new_ctx();
+	unsigned long ids[] = {1, 2, 3};
+	/* Each line represents one region in ``<target id> <start> <end>`` */
+	char * const valid_inputs[] = {"2 10 20\n 2   20 30\n2 35 45",
+		"2 10 20\n",
+		"2 10 20\n1 39 59\n1 70 134\n  2  20 25\n",
+		""};
+	/* Reading the file again will show sorted, clean output */
+	char * const valid_expects[] = {"2 10 20\n2 20 30\n2 35 45\n",
+		"2 10 20\n",
+		"1 39 59\n1 70 134\n2 10 20\n2 20 25\n",
+		""};
+	char * const invalid_inputs[] = {"4 10 20\n",	/* target not exists */
+		"2 10 20\n 2 14 26\n",		/* regions overlap */
+		"1 10 20\n2 30 40\n 1 5 8"};	/* not sorted by address */
+	char *input, *expect;
+	int i, rc;
+	char buf[256];
+
+	damon_set_targets(ctx, ids, 3);
+
+	/* Put valid inputs and check the results */
+	for (i = 0; i < ARRAY_SIZE(valid_inputs); i++) {
+		input = valid_inputs[i];
+		expect = valid_expects[i];
+
+		rc = set_init_regions(ctx, input, strnlen(input, 256));
+		KUNIT_EXPECT_EQ(test, rc, 0);
+
+		memset(buf, 0, 256);
+		sprint_init_regions(ctx, buf, 256);
+
+		KUNIT_EXPECT_STREQ(test, (char *)buf, expect);
+	}
+	/* Put invlid inputs and check the return error code */
+	for (i = 0; i < ARRAY_SIZE(invalid_inputs); i++) {
+		input = invalid_inputs[i];
+		pr_info("input: %s\n", input);
+		rc = set_init_regions(ctx, input, strnlen(input, 256));
+		KUNIT_EXPECT_EQ(test, rc, -EINVAL);
+
+		memset(buf, 0, 256);
+		sprint_init_regions(ctx, buf, 256);
+
+		KUNIT_EXPECT_STREQ(test, (char *)buf, "");
+	}
+
+	damon_set_targets(ctx, NULL, 0);
+	damon_destroy_ctx(ctx);
+}
+
 static struct kunit_case damon_test_cases[] = {
 	KUNIT_CASE(damon_dbgfs_test_str_to_target_ids),
 	KUNIT_CASE(damon_dbgfs_test_set_targets),
+	KUNIT_CASE(damon_dbgfs_test_set_init_regions),
 	{},
 };
 
-- 
GitLab


From 7dc7024f32df759c6a99318a1e35f743fa8e3b1f Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:53 -0700
Subject: [PATCH 4806/4878] UPSTREAM: mm/damon/vaddr: separate commonly usable
 functions

This moves functions in the default virtual address spaces monitoring
primitives that commonly usable from other address spaces like physical
address space into a header file.  Those will be reused by the physical
address space monitoring primitives which will be implemented by the
following commit.

[sj@kernel.org: include 'highmem.h' to fix a build failure]
  Link: https://lkml.kernel.org/r/20211014110848.5204-1-sj@kernel.org

Link: https://lkml.kernel.org/r/20211012205711.29216-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 46c3a0accdc48c86928157fd073e66807f338485)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I6f69ed866410db882171c4318f5ee799fbc4eb98
---
 mm/damon/Makefile       |  2 +-
 mm/damon/prmtv-common.c | 87 ++++++++++++++++++++++++++++++++++++++++
 mm/damon/prmtv-common.h | 17 ++++++++
 mm/damon/vaddr.c        | 88 ++---------------------------------------
 4 files changed, 108 insertions(+), 86 deletions(-)
 create mode 100644 mm/damon/prmtv-common.c
 create mode 100644 mm/damon/prmtv-common.h

diff --git a/mm/damon/Makefile b/mm/damon/Makefile
index fed4be3bace3e..99b1bfe01ff51 100644
--- a/mm/damon/Makefile
+++ b/mm/damon/Makefile
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_DAMON)		:= core.o
-obj-$(CONFIG_DAMON_VADDR)	+= vaddr.o
+obj-$(CONFIG_DAMON_VADDR)	+= prmtv-common.o vaddr.o
 obj-$(CONFIG_DAMON_DBGFS)	+= dbgfs.o
diff --git a/mm/damon/prmtv-common.c b/mm/damon/prmtv-common.c
new file mode 100644
index 0000000000000..7e62ee54fb543
--- /dev/null
+++ b/mm/damon/prmtv-common.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Common Primitives for Data Access Monitoring
+ *
+ * Author: SeongJae Park <sj@kernel.org>
+ */
+
+#include <linux/mmu_notifier.h>
+#include <linux/page_idle.h>
+#include <linux/pagemap.h>
+#include <linux/rmap.h>
+
+#include "prmtv-common.h"
+
+/*
+ * Get an online page for a pfn if it's in the LRU list.  Otherwise, returns
+ * NULL.
+ *
+ * The body of this function is stolen from the 'page_idle_get_page()'.  We
+ * steal rather than reuse it because the code is quite simple.
+ */
+struct page *damon_get_page(unsigned long pfn)
+{
+	struct page *page = pfn_to_online_page(pfn);
+
+	if (!page || !PageLRU(page) || !get_page_unless_zero(page))
+		return NULL;
+
+	if (unlikely(!PageLRU(page))) {
+		put_page(page);
+		page = NULL;
+	}
+	return page;
+}
+
+void damon_ptep_mkold(pte_t *pte, struct mm_struct *mm, unsigned long addr)
+{
+	bool referenced = false;
+	struct page *page = damon_get_page(pte_pfn(*pte));
+
+	if (!page)
+		return;
+
+	if (pte_young(*pte)) {
+		referenced = true;
+		*pte = pte_mkold(*pte);
+	}
+
+#ifdef CONFIG_MMU_NOTIFIER
+	if (mmu_notifier_clear_young(mm, addr, addr + PAGE_SIZE))
+		referenced = true;
+#endif /* CONFIG_MMU_NOTIFIER */
+
+	if (referenced)
+		set_page_young(page);
+
+	set_page_idle(page);
+	put_page(page);
+}
+
+void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm, unsigned long addr)
+{
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	bool referenced = false;
+	struct page *page = damon_get_page(pmd_pfn(*pmd));
+
+	if (!page)
+		return;
+
+	if (pmd_young(*pmd)) {
+		referenced = true;
+		*pmd = pmd_mkold(*pmd);
+	}
+
+#ifdef CONFIG_MMU_NOTIFIER
+	if (mmu_notifier_clear_young(mm, addr,
+				addr + ((1UL) << HPAGE_PMD_SHIFT)))
+		referenced = true;
+#endif /* CONFIG_MMU_NOTIFIER */
+
+	if (referenced)
+		set_page_young(page);
+
+	set_page_idle(page);
+	put_page(page);
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+}
diff --git a/mm/damon/prmtv-common.h b/mm/damon/prmtv-common.h
new file mode 100644
index 0000000000000..7093d19e5d428
--- /dev/null
+++ b/mm/damon/prmtv-common.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common Primitives for Data Access Monitoring
+ *
+ * Author: SeongJae Park <sj@kernel.org>
+ */
+
+#include <linux/damon.h>
+#include <linux/random.h>
+
+/* Get a random number in [l, r) */
+#define damon_rand(l, r) (l + prandom_u32_max(r - l))
+
+struct page *damon_get_page(unsigned long pfn);
+
+void damon_ptep_mkold(pte_t *pte, struct mm_struct *mm, unsigned long addr);
+void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm, unsigned long addr);
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 953c145b4f08a..f0aef35602dab 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -8,25 +8,19 @@
 #define pr_fmt(fmt) "damon-va: " fmt
 
 #include <asm-generic/mman-common.h>
-#include <linux/damon.h>
+#include <linux/highmem.h>
 #include <linux/hugetlb.h>
-#include <linux/mm.h>
 #include <linux/mmu_notifier.h>
-#include <linux/highmem.h>
 #include <linux/page_idle.h>
 #include <linux/pagewalk.h>
-#include <linux/random.h>
-#include <linux/sched/mm.h>
-#include <linux/slab.h>
+
+#include "prmtv-common.h"
 
 #ifdef CONFIG_DAMON_VADDR_KUNIT_TEST
 #undef DAMON_MIN_REGION
 #define DAMON_MIN_REGION 1
 #endif
 
-/* Get a random number in [l, r) */
-#define damon_rand(l, r) (l + prandom_u32_max(r - l))
-
 /*
  * 't->id' should be the pointer to the relevant 'struct pid' having reference
  * count.  Caller must put the returned task, unless it is NULL.
@@ -373,82 +367,6 @@ void damon_va_update(struct damon_ctx *ctx)
 	}
 }
 
-/*
- * Get an online page for a pfn if it's in the LRU list.  Otherwise, returns
- * NULL.
- *
- * The body of this function is stolen from the 'page_idle_get_page()'.  We
- * steal rather than reuse it because the code is quite simple.
- */
-static struct page *damon_get_page(unsigned long pfn)
-{
-	struct page *page = pfn_to_online_page(pfn);
-
-	if (!page || !PageLRU(page) || !get_page_unless_zero(page))
-		return NULL;
-
-	if (unlikely(!PageLRU(page))) {
-		put_page(page);
-		page = NULL;
-	}
-	return page;
-}
-
-static void damon_ptep_mkold(pte_t *pte, struct mm_struct *mm,
-			     unsigned long addr)
-{
-	bool referenced = false;
-	struct page *page = damon_get_page(pte_pfn(*pte));
-
-	if (!page)
-		return;
-
-	if (pte_young(*pte)) {
-		referenced = true;
-		*pte = pte_mkold(*pte);
-	}
-
-#ifdef CONFIG_MMU_NOTIFIER
-	if (mmu_notifier_clear_young(mm, addr, addr + PAGE_SIZE))
-		referenced = true;
-#endif /* CONFIG_MMU_NOTIFIER */
-
-	if (referenced)
-		set_page_young(page);
-
-	set_page_idle(page);
-	put_page(page);
-}
-
-static void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm,
-			     unsigned long addr)
-{
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	bool referenced = false;
-	struct page *page = damon_get_page(pmd_pfn(*pmd));
-
-	if (!page)
-		return;
-
-	if (pmd_young(*pmd)) {
-		referenced = true;
-		*pmd = pmd_mkold(*pmd);
-	}
-
-#ifdef CONFIG_MMU_NOTIFIER
-	if (mmu_notifier_clear_young(mm, addr,
-				addr + ((1UL) << HPAGE_PMD_SHIFT)))
-		referenced = true;
-#endif /* CONFIG_MMU_NOTIFIER */
-
-	if (referenced)
-		set_page_young(page);
-
-	set_page_idle(page);
-	put_page(page);
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-}
-
 static int damon_mkold_pmd_entry(pmd_t *pmd, unsigned long addr,
 		unsigned long next, struct mm_walk *walk)
 {
-- 
GitLab


From 2dc9fec10eb296b22d3d13e8da0206ddf50aeb23 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:46:56 -0700
Subject: [PATCH 4807/4878] UPSTREAM: mm/damon: implement primitives for
 physical address space monitoring

This implements the monitoring primitives for the physical memory
address space.  Internally, it uses the PTE Accessed bit, similar to
that of the virtual address spaces monitoring primitives.  It supports
only user memory pages, as idle pages tracking does.  If the monitoring
target physical memory address range contains non-user memory pages,
access check of the pages will do nothing but simply treat the pages as
not accessed.

Link: https://lkml.kernel.org/r/20211012205711.29216-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit a28397beb55b68bd0f15c6778540e8ae1bc26d21)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ib36d7b5d2256fbc49013b394071d884b5f64e2ce
---
 include/linux/damon.h |  10 ++
 mm/damon/Kconfig      |   8 ++
 mm/damon/Makefile     |   1 +
 mm/damon/paddr.c      | 224 ++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 243 insertions(+)
 create mode 100644 mm/damon/paddr.c

diff --git a/include/linux/damon.h b/include/linux/damon.h
index f301bb53381c1..715dadd21f7cd 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -351,4 +351,14 @@ void damon_va_set_primitives(struct damon_ctx *ctx);
 
 #endif	/* CONFIG_DAMON_VADDR */
 
+#ifdef CONFIG_DAMON_PADDR
+
+/* Monitoring primitives for the physical memory address space */
+void damon_pa_prepare_access_checks(struct damon_ctx *ctx);
+unsigned int damon_pa_check_accesses(struct damon_ctx *ctx);
+bool damon_pa_target_valid(void *t);
+void damon_pa_set_primitives(struct damon_ctx *ctx);
+
+#endif	/* CONFIG_DAMON_PADDR */
+
 #endif	/* _DAMON_H */
diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index ba8898c7eb8eb..2a5923be631e2 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -32,6 +32,14 @@ config DAMON_VADDR
 	  This builds the default data access monitoring primitives for DAMON
 	  that work for virtual address spaces.
 
+config DAMON_PADDR
+	bool "Data access monitoring primitives for the physical address space"
+	depends on DAMON && MMU
+	select PAGE_IDLE_FLAG
+	help
+	  This builds the default data access monitoring primitives for DAMON
+	  that works for the physical address space.
+
 config DAMON_VADDR_KUNIT_TEST
 	bool "Test for DAMON primitives" if !KUNIT_ALL_TESTS
 	depends on DAMON_VADDR && KUNIT=y
diff --git a/mm/damon/Makefile b/mm/damon/Makefile
index 99b1bfe01ff51..8d9b0df797029 100644
--- a/mm/damon/Makefile
+++ b/mm/damon/Makefile
@@ -2,4 +2,5 @@
 
 obj-$(CONFIG_DAMON)		:= core.o
 obj-$(CONFIG_DAMON_VADDR)	+= prmtv-common.o vaddr.o
+obj-$(CONFIG_DAMON_PADDR)	+= prmtv-common.o paddr.o
 obj-$(CONFIG_DAMON_DBGFS)	+= dbgfs.o
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
new file mode 100644
index 0000000000000..d7a2ecd09ed02
--- /dev/null
+++ b/mm/damon/paddr.c
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DAMON Primitives for The Physical Address Space
+ *
+ * Author: SeongJae Park <sj@kernel.org>
+ */
+
+#define pr_fmt(fmt) "damon-pa: " fmt
+
+#include <linux/mmu_notifier.h>
+#include <linux/page_idle.h>
+#include <linux/pagemap.h>
+#include <linux/rmap.h>
+
+#include "prmtv-common.h"
+
+static bool __damon_pa_mkold(struct page *page, struct vm_area_struct *vma,
+		unsigned long addr, void *arg)
+{
+	struct page_vma_mapped_walk pvmw = {
+		.page = page,
+		.vma = vma,
+		.address = addr,
+	};
+
+	while (page_vma_mapped_walk(&pvmw)) {
+		addr = pvmw.address;
+		if (pvmw.pte)
+			damon_ptep_mkold(pvmw.pte, vma->vm_mm, addr);
+		else
+			damon_pmdp_mkold(pvmw.pmd, vma->vm_mm, addr);
+	}
+	return true;
+}
+
+static void damon_pa_mkold(unsigned long paddr)
+{
+	struct page *page = damon_get_page(PHYS_PFN(paddr));
+	struct rmap_walk_control rwc = {
+		.rmap_one = __damon_pa_mkold,
+		.anon_lock = page_lock_anon_vma_read,
+	};
+	bool need_lock;
+
+	if (!page)
+		return;
+
+	if (!page_mapped(page) || !page_rmapping(page)) {
+		set_page_idle(page);
+		goto out;
+	}
+
+	need_lock = !PageAnon(page) || PageKsm(page);
+	if (need_lock && !trylock_page(page))
+		goto out;
+
+	rmap_walk(page, &rwc);
+
+	if (need_lock)
+		unlock_page(page);
+
+out:
+	put_page(page);
+}
+
+static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,
+					    struct damon_region *r)
+{
+	r->sampling_addr = damon_rand(r->ar.start, r->ar.end);
+
+	damon_pa_mkold(r->sampling_addr);
+}
+
+void damon_pa_prepare_access_checks(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	struct damon_region *r;
+
+	damon_for_each_target(t, ctx) {
+		damon_for_each_region(r, t)
+			__damon_pa_prepare_access_check(ctx, r);
+	}
+}
+
+struct damon_pa_access_chk_result {
+	unsigned long page_sz;
+	bool accessed;
+};
+
+static bool __damon_pa_young(struct page *page, struct vm_area_struct *vma,
+		unsigned long addr, void *arg)
+{
+	struct damon_pa_access_chk_result *result = arg;
+	struct page_vma_mapped_walk pvmw = {
+		.page = page,
+		.vma = vma,
+		.address = addr,
+	};
+
+	result->accessed = false;
+	result->page_sz = PAGE_SIZE;
+	while (page_vma_mapped_walk(&pvmw)) {
+		addr = pvmw.address;
+		if (pvmw.pte) {
+			result->accessed = pte_young(*pvmw.pte) ||
+				!page_is_idle(page) ||
+				mmu_notifier_test_young(vma->vm_mm, addr);
+		} else {
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+			result->accessed = pmd_young(*pvmw.pmd) ||
+				!page_is_idle(page) ||
+				mmu_notifier_test_young(vma->vm_mm, addr);
+			result->page_sz = ((1UL) << HPAGE_PMD_SHIFT);
+#else
+			WARN_ON_ONCE(1);
+#endif	/* CONFIG_TRANSPARENT_HUGEPAGE */
+		}
+		if (result->accessed) {
+			page_vma_mapped_walk_done(&pvmw);
+			break;
+		}
+	}
+
+	/* If accessed, stop walking */
+	return !result->accessed;
+}
+
+static bool damon_pa_young(unsigned long paddr, unsigned long *page_sz)
+{
+	struct page *page = damon_get_page(PHYS_PFN(paddr));
+	struct damon_pa_access_chk_result result = {
+		.page_sz = PAGE_SIZE,
+		.accessed = false,
+	};
+	struct rmap_walk_control rwc = {
+		.arg = &result,
+		.rmap_one = __damon_pa_young,
+		.anon_lock = page_lock_anon_vma_read,
+	};
+	bool need_lock;
+
+	if (!page)
+		return false;
+
+	if (!page_mapped(page) || !page_rmapping(page)) {
+		if (page_is_idle(page))
+			result.accessed = false;
+		else
+			result.accessed = true;
+		put_page(page);
+		goto out;
+	}
+
+	need_lock = !PageAnon(page) || PageKsm(page);
+	if (need_lock && !trylock_page(page)) {
+		put_page(page);
+		return NULL;
+	}
+
+	rmap_walk(page, &rwc);
+
+	if (need_lock)
+		unlock_page(page);
+	put_page(page);
+
+out:
+	*page_sz = result.page_sz;
+	return result.accessed;
+}
+
+static void __damon_pa_check_access(struct damon_ctx *ctx,
+				    struct damon_region *r)
+{
+	static unsigned long last_addr;
+	static unsigned long last_page_sz = PAGE_SIZE;
+	static bool last_accessed;
+
+	/* If the region is in the last checked page, reuse the result */
+	if (ALIGN_DOWN(last_addr, last_page_sz) ==
+				ALIGN_DOWN(r->sampling_addr, last_page_sz)) {
+		if (last_accessed)
+			r->nr_accesses++;
+		return;
+	}
+
+	last_accessed = damon_pa_young(r->sampling_addr, &last_page_sz);
+	if (last_accessed)
+		r->nr_accesses++;
+
+	last_addr = r->sampling_addr;
+}
+
+unsigned int damon_pa_check_accesses(struct damon_ctx *ctx)
+{
+	struct damon_target *t;
+	struct damon_region *r;
+	unsigned int max_nr_accesses = 0;
+
+	damon_for_each_target(t, ctx) {
+		damon_for_each_region(r, t) {
+			__damon_pa_check_access(ctx, r);
+			max_nr_accesses = max(r->nr_accesses, max_nr_accesses);
+		}
+	}
+
+	return max_nr_accesses;
+}
+
+bool damon_pa_target_valid(void *t)
+{
+	return true;
+}
+
+void damon_pa_set_primitives(struct damon_ctx *ctx)
+{
+	ctx->primitive.init = NULL;
+	ctx->primitive.update = NULL;
+	ctx->primitive.prepare_access_checks = damon_pa_prepare_access_checks;
+	ctx->primitive.check_accesses = damon_pa_check_accesses;
+	ctx->primitive.reset_aggregated = NULL;
+	ctx->primitive.target_valid = damon_pa_target_valid;
+	ctx->primitive.cleanup = NULL;
+	ctx->primitive.apply_scheme = NULL;
+}
-- 
GitLab


From fd1bd69a674c263e01855189cf328c87c72e3bda Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:00 -0700
Subject: [PATCH 4808/4878] UPSTREAM: mm/damon/dbgfs: support physical memory
 monitoring

This makes the 'damon-dbgfs' to support the physical memory monitoring,
in addition to the virtual memory monitoring.

Users can do the physical memory monitoring by writing a special
keyword, 'paddr' to the 'target_ids' debugfs file.  Then, DAMON will
check the special keyword and configure the monitoring context to run
with the primitives for the physical address space.

Unlike the virtual memory monitoring, the monitoring target region will
not be automatically set.  Therefore, users should also set the
monitoring target address region using the 'init_regions' debugfs file.

Also, note that the physical memory monitoring will not automatically
terminated.  The user should explicitly turn off the monitoring by
writing 'off' to the 'monitor_on' debugfs file.

Link: https://lkml.kernel.org/r/20211012205711.29216-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rienjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit c026291ab88f02247999959d01182cb8eb6e6a5b)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I8d90c01714b5cc05ebaaea34d957686f5fafc868
---
 mm/damon/Kconfig |  2 +-
 mm/damon/dbgfs.c | 21 ++++++++++++++++++---
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 2a5923be631e2..ca33b289ebbe4 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -54,7 +54,7 @@ config DAMON_VADDR_KUNIT_TEST
 
 config DAMON_DBGFS
 	bool "DAMON debugfs interface"
-	depends on DAMON_VADDR && DEBUG_FS
+	depends on DAMON_VADDR && DAMON_PADDR && DEBUG_FS
 	help
 	  This builds the debugfs interface for DAMON.  The user space admins
 	  can use the interface for arbitrary data access monitoring.
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 1cce53cd241d0..38188347d8abb 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -339,6 +339,7 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 		const char __user *buf, size_t count, loff_t *ppos)
 {
 	struct damon_ctx *ctx = file->private_data;
+	bool id_is_pid = true;
 	char *kbuf, *nrs;
 	unsigned long *targets;
 	ssize_t nr_targets;
@@ -351,6 +352,11 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 		return PTR_ERR(kbuf);
 
 	nrs = kbuf;
+	if (!strncmp(kbuf, "paddr\n", count)) {
+		id_is_pid = false;
+		/* target id is meaningless here, but we set it just for fun */
+		scnprintf(kbuf, count, "42    ");
+	}
 
 	targets = str_to_target_ids(nrs, ret, &nr_targets);
 	if (!targets) {
@@ -358,7 +364,7 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 		goto out;
 	}
 
-	if (targetid_is_pid(ctx)) {
+	if (id_is_pid) {
 		for (i = 0; i < nr_targets; i++) {
 			targets[i] = (unsigned long)find_get_pid(
 					(int)targets[i]);
@@ -372,15 +378,24 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 
 	mutex_lock(&ctx->kdamond_lock);
 	if (ctx->kdamond) {
-		if (targetid_is_pid(ctx))
+		if (id_is_pid)
 			dbgfs_put_pids(targets, nr_targets);
 		ret = -EBUSY;
 		goto unlock_out;
 	}
 
+	/* remove targets with previously-set primitive */
+	damon_set_targets(ctx, NULL, 0);
+
+	/* Configure the context for the address space type */
+	if (id_is_pid)
+		damon_va_set_primitives(ctx);
+	else
+		damon_pa_set_primitives(ctx);
+
 	err = damon_set_targets(ctx, targets, nr_targets);
 	if (err) {
-		if (targetid_is_pid(ctx))
+		if (id_is_pid)
 			dbgfs_put_pids(targets, nr_targets);
 		ret = err;
 	}
-- 
GitLab


From c525089abfaff83c892959bf90d13913b5fdf747 Mon Sep 17 00:00:00 2001
From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Date: Fri, 5 Nov 2021 13:47:07 -0700
Subject: [PATCH 4809/4878] UPSTREAM: mm/damon/vaddr: constify static
 mm_walk_ops

The only usage of these structs is to pass their addresses to
walk_page_range(), which takes a pointer to const mm_walk_ops as
argument.  Make them const to allow the compiler to put them in
read-only memory.

Link: https://lkml.kernel.org/r/20211014075042.17174-2-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 199b50f4c9485c46c2403d8b3e0eca90ec401ed6)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ib72d1a17a17377357a53b80cbafc13c456e71683
---
 mm/damon/vaddr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index f0aef35602dab..758501b8d97db 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -394,7 +394,7 @@ out:
 	return 0;
 }
 
-static struct mm_walk_ops damon_mkold_ops = {
+static const struct mm_walk_ops damon_mkold_ops = {
 	.pmd_entry = damon_mkold_pmd_entry,
 };
 
@@ -490,7 +490,7 @@ out:
 	return 0;
 }
 
-static struct mm_walk_ops damon_young_ops = {
+static const struct mm_walk_ops damon_young_ops = {
 	.pmd_entry = damon_young_pmd_entry,
 };
 
-- 
GitLab


From 8d537db0f98cd6d2edbcfaa40695329626eee6f6 Mon Sep 17 00:00:00 2001
From: Rongwei Wang <rongwei.wang@linux.alibaba.com>
Date: Fri, 5 Nov 2021 13:47:09 -0700
Subject: [PATCH 4810/4878] UPSTREAM: mm/damon/dbgfs: remove unnecessary
 variables

In some functions, it's unnecessary to declare 'err' and 'ret' variables
at the same time.  This patch mainly to simplify the issue of such
declarations by reusing one variable.

Link: https://lkml.kernel.org/r/20211014073014.35754-1-sj@kernel.org
Signed-off-by: Rongwei Wang <rongwei.wang@linux.alibaba.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 9210622ab81f7e722da7563166d93b2a028a79d4)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iac1dfa450c23f09ced9b4edc9e8e42b6cb01b1c4
---
 mm/damon/dbgfs.c | 66 +++++++++++++++++++++++-------------------------
 1 file changed, 31 insertions(+), 35 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 38188347d8abb..c90988a20fa4f 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -69,8 +69,7 @@ static ssize_t dbgfs_attrs_write(struct file *file,
 	struct damon_ctx *ctx = file->private_data;
 	unsigned long s, a, r, minr, maxr;
 	char *kbuf;
-	ssize_t ret = count;
-	int err;
+	ssize_t ret;
 
 	kbuf = user_input_str(buf, count, ppos);
 	if (IS_ERR(kbuf))
@@ -88,9 +87,9 @@ static ssize_t dbgfs_attrs_write(struct file *file,
 		goto unlock_out;
 	}
 
-	err = damon_set_attrs(ctx, s, a, r, minr, maxr);
-	if (err)
-		ret = err;
+	ret = damon_set_attrs(ctx, s, a, r, minr, maxr);
+	if (!ret)
+		ret = count;
 unlock_out:
 	mutex_unlock(&ctx->kdamond_lock);
 out:
@@ -220,14 +219,13 @@ static ssize_t dbgfs_schemes_write(struct file *file, const char __user *buf,
 	struct damon_ctx *ctx = file->private_data;
 	char *kbuf;
 	struct damos **schemes;
-	ssize_t nr_schemes = 0, ret = count;
-	int err;
+	ssize_t nr_schemes = 0, ret;
 
 	kbuf = user_input_str(buf, count, ppos);
 	if (IS_ERR(kbuf))
 		return PTR_ERR(kbuf);
 
-	schemes = str_to_schemes(kbuf, ret, &nr_schemes);
+	schemes = str_to_schemes(kbuf, count, &nr_schemes);
 	if (!schemes) {
 		ret = -EINVAL;
 		goto out;
@@ -239,11 +237,12 @@ static ssize_t dbgfs_schemes_write(struct file *file, const char __user *buf,
 		goto unlock_out;
 	}
 
-	err = damon_set_schemes(ctx, schemes, nr_schemes);
-	if (err)
-		ret = err;
-	else
+	ret = damon_set_schemes(ctx, schemes, nr_schemes);
+	if (!ret) {
+		ret = count;
 		nr_schemes = 0;
+	}
+
 unlock_out:
 	mutex_unlock(&ctx->kdamond_lock);
 	free_schemes_arr(schemes, nr_schemes);
@@ -343,9 +342,8 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 	char *kbuf, *nrs;
 	unsigned long *targets;
 	ssize_t nr_targets;
-	ssize_t ret = count;
+	ssize_t ret;
 	int i;
-	int err;
 
 	kbuf = user_input_str(buf, count, ppos);
 	if (IS_ERR(kbuf))
@@ -358,7 +356,7 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 		scnprintf(kbuf, count, "42    ");
 	}
 
-	targets = str_to_target_ids(nrs, ret, &nr_targets);
+	targets = str_to_target_ids(nrs, count, &nr_targets);
 	if (!targets) {
 		ret = -ENOMEM;
 		goto out;
@@ -393,11 +391,12 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 	else
 		damon_pa_set_primitives(ctx);
 
-	err = damon_set_targets(ctx, targets, nr_targets);
-	if (err) {
+	ret = damon_set_targets(ctx, targets, nr_targets);
+	if (ret) {
 		if (id_is_pid)
 			dbgfs_put_pids(targets, nr_targets);
-		ret = err;
+	} else {
+		ret = count;
 	}
 
 unlock_out:
@@ -715,8 +714,7 @@ static ssize_t dbgfs_mk_context_write(struct file *file,
 {
 	char *kbuf;
 	char *ctx_name;
-	ssize_t ret = count;
-	int err;
+	ssize_t ret;
 
 	kbuf = user_input_str(buf, count, ppos);
 	if (IS_ERR(kbuf))
@@ -734,9 +732,9 @@ static ssize_t dbgfs_mk_context_write(struct file *file,
 	}
 
 	mutex_lock(&damon_dbgfs_lock);
-	err = dbgfs_mk_context(ctx_name);
-	if (err)
-		ret = err;
+	ret = dbgfs_mk_context(ctx_name);
+	if (!ret)
+		ret = count;
 	mutex_unlock(&damon_dbgfs_lock);
 
 out:
@@ -805,8 +803,7 @@ static ssize_t dbgfs_rm_context_write(struct file *file,
 		const char __user *buf, size_t count, loff_t *ppos)
 {
 	char *kbuf;
-	ssize_t ret = count;
-	int err;
+	ssize_t ret;
 	char *ctx_name;
 
 	kbuf = user_input_str(buf, count, ppos);
@@ -825,9 +822,9 @@ static ssize_t dbgfs_rm_context_write(struct file *file,
 	}
 
 	mutex_lock(&damon_dbgfs_lock);
-	err = dbgfs_rm_context(ctx_name);
-	if (err)
-		ret = err;
+	ret = dbgfs_rm_context(ctx_name);
+	if (!ret)
+		ret = count;
 	mutex_unlock(&damon_dbgfs_lock);
 
 out:
@@ -851,9 +848,8 @@ static ssize_t dbgfs_monitor_on_read(struct file *file,
 static ssize_t dbgfs_monitor_on_write(struct file *file,
 		const char __user *buf, size_t count, loff_t *ppos)
 {
-	ssize_t ret = count;
+	ssize_t ret;
 	char *kbuf;
-	int err;
 
 	kbuf = user_input_str(buf, count, ppos);
 	if (IS_ERR(kbuf))
@@ -866,14 +862,14 @@ static ssize_t dbgfs_monitor_on_write(struct file *file,
 	}
 
 	if (!strncmp(kbuf, "on", count))
-		err = damon_start(dbgfs_ctxs, dbgfs_nr_ctxs);
+		ret = damon_start(dbgfs_ctxs, dbgfs_nr_ctxs);
 	else if (!strncmp(kbuf, "off", count))
-		err = damon_stop(dbgfs_ctxs, dbgfs_nr_ctxs);
+		ret = damon_stop(dbgfs_ctxs, dbgfs_nr_ctxs);
 	else
-		err = -EINVAL;
+		ret = -EINVAL;
 
-	if (err)
-		ret = err;
+	if (!ret)
+		ret = count;
 	kfree(kbuf);
 	return ret;
 }
-- 
GitLab


From 78572870a2eb83ed7361e9e7f68c66af57ca5de9 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:13 -0700
Subject: [PATCH 4811/4878] UPSTREAM: mm/damon/paddr: support the pageout
 scheme

Introduction
============

This patchset 1) makes the engine for general data access
pattern-oriented memory management (DAMOS) be more useful for production
environments, and 2) implements a static kernel module for lightweight
proactive reclamation using the engine.

Proactive Reclamation
---------------------

On general memory over-committed systems, proactively reclaiming cold
pages helps saving memory and reducing latency spikes that incurred by
the direct reclaim or the CPU consumption of kswapd, while incurring
only minimal performance degradation[2].

A Free Pages Reporting[8] based memory over-commit virtualization system
would be one more specific use case.  In the system, the guest VMs
reports their free memory to host, and the host reallocates the reported
memory to other guests.  As a result, the system's memory utilization
can be maximized.  However, the guests could be not so memory-frugal,
because some kernel subsystems and user-space applications are designed
to use as much memory as available.  Then, guests would report only
small amount of free memory to host, results in poor memory utilization.
Running the proactive reclamation in such guests could help mitigating
this problem.

Google has also implemented this idea and using it in their data center.
They further proposed upstreaming it in LSFMM'19, and "the general
consensus was that, while this sort of proactive reclaim would be useful
for a number of users, the cost of this particular solution was too high
to consider merging it upstream"[3].  The cost mainly comes from the
coldness tracking.  Roughly speaking, the implementation periodically
scans the 'Accessed' bit of each page.  For the reason, the overhead
linearly increases as the size of the memory and the scanning frequency
grows.  As a result, Google is known to dedicating one CPU for the work.
That's a reasonable option to someone like Google, but it wouldn't be so
to some others.

DAMON and DAMOS: An engine for data access pattern-oriented memory management
-----------------------------------------------------------------------------

DAMON[4] is a framework for general data access monitoring.  Its
adaptive monitoring overhead control feature minimizes its monitoring
overhead.  It also let the upper-bound of the overhead be configurable
by clients, regardless of the size of the monitoring target memory.
While monitoring 70 GiB memory of a production system every 5
milliseconds, it consumes less than 1% single CPU time.  For this, it
could sacrify some of the quality of the monitoring results.
Nevertheless, the lower-bound of the quality is configurable, and it
uses a best-effort algorithm for better quality.  Our test results[5]
show the quality is practical enough.  From the production system
monitoring, we were able to find a 4 KiB region in the 70 GiB memory
that shows highest access frequency.

We normally don't monitor the data access pattern just for fun but to
improve something like memory management.  Proactive reclamation is one
such usage.  For such general cases, DAMON provides a feature called
DAMon-based Operation Schemes (DAMOS)[6].  It makes DAMON an engine for
general data access pattern oriented memory management.  Using this,
clients can ask DAMON to find memory regions of specific data access
pattern and apply some memory management action (e.g., page out, move to
head of the LRU list, use huge page, ...).  We call the request
'scheme'.

Proactive Reclamation on top of DAMON/DAMOS
-------------------------------------------

Therefore, by using DAMON for the cold pages detection, the proactive
reclamation's monitoring overhead issue can be solved.  Actually, we
previously implemented a version of proactive reclamation using DAMOS
and achieved noticeable improvements with our evaluation setup[5].
Nevertheless, it more for a proof-of-concept, rather than production
uses.  It supports only virtual address spaces of processes, and require
additional tuning efforts for given workloads and the hardware.  For the
tuning, we introduced a simple auto-tuning user space tool[8].  Google
is also known to using a ML-based similar approach for their fleets[2].
But, making it just works with intuitive knobs in the kernel would be
helpful for general users.

To this end, this patchset improves DAMOS to be ready for such
production usages, and implements another version of the proactive
reclamation, namely DAMON_RECLAIM, on top of it.

DAMOS Improvements: Aggressiveness Control, Prioritization, and Watermarks
--------------------------------------------------------------------------

First of all, the current version of DAMOS supports only virtual address
spaces.  This patchset makes it supports the physical address space for
the page out action.

Next major problem of the current version of DAMOS is the lack of the
aggressiveness control, which can results in arbitrary overhead.  For
example, if huge memory regions having the data access pattern of
interest are found, applying the requested action to all of the regions
could incur significant overhead.  It can be controlled by tuning the
target data access pattern with manual or automated approaches[2,7].
But, some people would prefer the kernel to just work with only
intuitive tuning or default values.

For such cases, this patchset implements a safeguard, namely time/size
quota.  Using this, the clients can specify up to how much time can be
used for applying the action, and/or up to how much memory regions the
action can be applied within a user-specified time duration.  A followup
question is, to which memory regions should the action applied within
the limits? We implement a simple regions prioritization mechanism for
each action and make DAMOS to apply the action to high priority regions
first.  It also allows clients tune the prioritization mechanism to use
different weights for size, access frequency, and age of memory regions.
This means we could use not only LRU but also LFU or some fancy
algorithms like CAR[9] with lightweight overhead.

Though DAMON is lightweight, someone would want to remove even the cold
pages monitoring overhead when it is unnecessary.  Currently, it should
manually turned on and off by clients, but some clients would simply
want to turn it on and off based on some metrics like free memory ratio
or memory fragmentation.  For such cases, this patchset implements a
watermarks-based automatic activation feature.  It allows the clients
configure the metric of their interest, and three watermarks of the
metric.  If the metric is higher than the high watermark or lower than
the low watermark, the scheme is deactivated.  If the metric is lower
than the mid watermark but higher than the low watermark, the scheme is
activated.

DAMON-based Reclaim
-------------------

Using the improved version of DAMOS, this patchset implements a static
kernel module called 'damon_reclaim'.  It finds memory regions that
didn't accessed for specific time duration and page out.  Consuming too
much CPU for the paging out operations, or doing pageout too frequently
can be critical for systems configuring their swap devices with
software-defined in-memory block devices like zram/zswap or total number
of writes limited devices like SSDs, respectively.  To avoid the
problems, the time/size quotas can be configured.  Under the quotas, it
pages out memory regions that didn't accessed longer first.  Also, to
remove the monitoring overhead under peaceful situation, and to fall
back to the LRU-list based page granularity reclamation when it doesn't
make progress, the three watermarks based activation mechanism is used,
with the free memory ratio as the watermark metric.

For convenient configurations, it provides several module parameters.
Using these, sysadmins can enable/disable it, and tune its parameters
including the coldness identification time threshold, the time/size
quotas and the three watermarks.

Evaluation
==========

In short, DAMON_RECLAIM with 50ms/s time quota and regions
prioritization on v5.15-rc5 Linux kernel with ZRAM swap device achieves
38.58% memory saving with only 1.94% runtime overhead.  For this,
DAMON_RECLAIM consumes only 4.97% of single CPU time.

Setup
-----

We evaluate DAMON_RECLAIM to show how each of the DAMOS improvements
make effect.  For this, we measure DAMON_RECLAIM's CPU consumption,
entire system memory footprint, total number of major page faults, and
runtime of 24 realistic workloads in PARSEC3 and SPLASH-2X benchmark
suites on my QEMU/KVM based virtual machine.  The virtual machine runs
on an i3.metal AWS instance, has 130GiB memory, and runs a linux kernel
built on latest -mm tree[1] plus this patchset.  It also utilizes a 4
GiB ZRAM swap device.  We repeats the measurement 5 times and use
averages.

[1] https://github.com/hnaz/linux-mm/tree/v5.15-rc5-mmots-2021-10-13-19-55

Detailed Results
----------------

The results are summarized in the below table.

With coldness identification threshold of 5 seconds, DAMON_RECLAIM
without the time quota-based speed limit achieves 47.21% memory saving,
but incur 4.59% runtime slowdown to the workloads on average.  For this,
DAMON_RECLAIM consumes about 11.28% single CPU time.

Applying time quotas of 200ms/s, 50ms/s, and 10ms/s without the regions
prioritization reduces the slowdown to 4.89%, 2.65%, and 1.5%,
respectively.  Time quota of 200ms/s (20%) makes no real change compared
to the quota unapplied version, because the quota unapplied version
consumes only 11.28% CPU time.  DAMON_RECLAIM's CPU utilization also
similarly reduced: 11.24%, 5.51%, and 2.01% of single CPU time.  That
is, the overhead is proportional to the speed limit.  Nevertheless, it
also reduces the memory saving because it becomes less aggressive.  In
detail, the three variants show 48.76%, 37.83%, and 7.85% memory saving,
respectively.

Applying the regions prioritization (page out regions that not accessed
longer first within the time quota) further reduces the performance
degradation.  Runtime slowdowns and total number of major page faults
increase has been 4.89%/218,690% -> 4.39%/166,136% (200ms/s),
2.65%/111,886% -> 1.94%/59,053% (50ms/s), and 1.5%/34,973.40% ->
2.08%/8,781.75% (10ms/s).  The runtime under 10ms/s time quota has
increased with prioritization, but apparently that's under the margin of
error.

    time quota   prioritization  memory_saving  cpu_util  slowdown  pgmajfaults overhead
    N            N               47.21%         11.28%    4.59%     194,802%
    200ms/s      N               48.76%         11.24%    4.89%     218,690%
    50ms/s       N               37.83%         5.51%     2.65%     111,886%
    10ms/s       N               7.85%          2.01%     1.5%      34,793.40%
    200ms/s      Y               50.08%         10.38%    4.39%     166,136%
    50ms/s       Y               38.58%         4.97%     1.94%     59,053%
    10ms/s       Y               3.63%          1.73%     2.08%     8,781.75%

Baseline and Complete Git Trees
===============================

The patches are based on the latest -mm tree
(v5.15-rc5-mmots-2021-10-13-19-55).  You can also clone the complete git tree
from:

    $ git clone git://github.com/sjp38/linux -b damon_reclaim/patches/v1

The web is also available:
https://git.kernel.org/pub/scm/linux/kernel/git/sj/linux.git/tag/?h=damon_reclaim/patches/v1

Sequence Of Patches
===================

The first patch makes DAMOS support the physical address space for the
page out action.  Following five patches (patches 2-6) implement the
time/size quotas.  Next four patches (patches 7-10) implement the memory
regions prioritization within the limit.  Then, three following patches
(patches 11-13) implement the watermarks-based schemes activation.

Finally, the last two patches (patches 14-15) implement and document the
DAMON-based reclamation using the advanced DAMOS.

[1] https://www.kernel.org/doc/html/v5.15-rc1/vm/damon/index.html
[2] https://research.google/pubs/pub48551/
[3] https://lwn.net/Articles/787611/
[4] https://damonitor.github.io
[5] https://damonitor.github.io/doc/html/latest/vm/damon/eval.html
[6] https://lore.kernel.org/linux-mm/20211001125604.29660-1-sj@kernel.org/
[7] https://github.com/awslabs/damoos
[8] https://www.kernel.org/doc/html/latest/vm/free_page_reporting.html
[9] https://www.usenix.org/conference/fast-04/car-clock-adaptive-replacement

This patch (of 15):

This makes the DAMON primitives for physical address space support the
pageout action for DAMON-based Operation Schemes.  With this commit,
hence, users can easily implement system-level data access-aware
reclamations using DAMOS.

[sj@kernel.org: fix missing-prototype build warning]
  Link: https://lkml.kernel.org/r/20211025064220.13904-1-sj@kernel.org

Link: https://lkml.kernel.org/r/20211019150731.16699-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211019150731.16699-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Marco Elver <elver@google.com>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Greg Thelen <gthelen@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 57223ac295845b1d72ec1bd02b5fab992b77a021)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I56dbce96f1d8152cac49ef0d11cb81a342bfa89d
---
 include/linux/damon.h |  2 ++
 mm/damon/paddr.c      | 37 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 715dadd21f7cd..9a327bc787b52 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -357,6 +357,8 @@ void damon_va_set_primitives(struct damon_ctx *ctx);
 void damon_pa_prepare_access_checks(struct damon_ctx *ctx);
 unsigned int damon_pa_check_accesses(struct damon_ctx *ctx);
 bool damon_pa_target_valid(void *t);
+int damon_pa_apply_scheme(struct damon_ctx *context, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme);
 void damon_pa_set_primitives(struct damon_ctx *ctx);
 
 #endif	/* CONFIG_DAMON_PADDR */
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index d7a2ecd09ed02..957ada55de77b 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -11,7 +11,9 @@
 #include <linux/page_idle.h>
 #include <linux/pagemap.h>
 #include <linux/rmap.h>
+#include <linux/swap.h>
 
+#include "../internal.h"
 #include "prmtv-common.h"
 
 static bool __damon_pa_mkold(struct page *page, struct vm_area_struct *vma,
@@ -211,6 +213,39 @@ bool damon_pa_target_valid(void *t)
 	return true;
 }
 
+int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme)
+{
+	unsigned long addr;
+	LIST_HEAD(page_list);
+
+	if (scheme->action != DAMOS_PAGEOUT)
+		return -EINVAL;
+
+	for (addr = r->ar.start; addr < r->ar.end; addr += PAGE_SIZE) {
+		struct page *page = damon_get_page(PHYS_PFN(addr));
+
+		if (!page)
+			continue;
+
+		ClearPageReferenced(page);
+		test_and_clear_page_young(page);
+		if (isolate_lru_page(page)) {
+			put_page(page);
+			continue;
+		}
+		if (PageUnevictable(page)) {
+			putback_lru_page(page);
+		} else {
+			list_add(&page->lru, &page_list);
+			put_page(page);
+		}
+	}
+	reclaim_pages(&page_list);
+	cond_resched();
+	return 0;
+}
+
 void damon_pa_set_primitives(struct damon_ctx *ctx)
 {
 	ctx->primitive.init = NULL;
@@ -220,5 +255,5 @@ void damon_pa_set_primitives(struct damon_ctx *ctx)
 	ctx->primitive.reset_aggregated = NULL;
 	ctx->primitive.target_valid = damon_pa_target_valid;
 	ctx->primitive.cleanup = NULL;
-	ctx->primitive.apply_scheme = NULL;
+	ctx->primitive.apply_scheme = damon_pa_apply_scheme;
 }
-- 
GitLab


From 51cd480dec1cd86210f8449837a97a1b7ec4519d Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:16 -0700
Subject: [PATCH 4812/4878] UPSTREAM: mm/damon/schemes: implement size quota
 for schemes application speed control

There could be arbitrarily large memory regions fulfilling the target
data access pattern of a DAMON-based operation scheme.  In the case,
applying the action of the scheme could incur too high overhead.  To
provide an intuitive way for avoiding it, this implements a feature
called size quota.  If the quota is set, DAMON tries to apply the action
only up to the given amount of memory regions within a given time
window.

Link: https://lkml.kernel.org/r/20211019150731.16699-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 2b8a248d5873343aa16f6c5ede30517693995f13)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I14a2cddcf6d9fa313ab16150a8d580ee60288b9e
---
 include/linux/damon.h | 36 +++++++++++++++++++++++---
 mm/damon/core.c       | 60 +++++++++++++++++++++++++++++++++++++------
 mm/damon/dbgfs.c      |  4 ++-
 3 files changed, 87 insertions(+), 13 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 9a327bc787b52..3a1ce9d9921c8 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -89,6 +89,26 @@ enum damos_action {
 	DAMOS_STAT,		/* Do nothing but only record the stat */
 };
 
+/**
+ * struct damos_quota - Controls the aggressiveness of the given scheme.
+ * @sz:			Maximum bytes of memory that the action can be applied.
+ * @reset_interval:	Charge reset interval in milliseconds.
+ *
+ * To avoid consuming too much CPU time or IO resources for applying the
+ * &struct damos->action to large memory, DAMON allows users to set a size
+ * quota.  The quota can be set by writing non-zero values to &sz.  If the size
+ * quota is set, DAMON tries to apply the action only up to &sz bytes within
+ * &reset_interval.
+ */
+struct damos_quota {
+	unsigned long sz;
+	unsigned long reset_interval;
+
+/* private: For charging the quota */
+	unsigned long charged_sz;
+	unsigned long charged_from;
+};
+
 /**
  * struct damos - Represents a Data Access Monitoring-based Operation Scheme.
  * @min_sz_region:	Minimum size of target regions.
@@ -98,13 +118,20 @@ enum damos_action {
  * @min_age_region:	Minimum age of target regions.
  * @max_age_region:	Maximum age of target regions.
  * @action:		&damo_action to be applied to the target regions.
+ * @quota:		Control the aggressiveness of this scheme.
  * @stat_count:		Total number of regions that this scheme is applied.
  * @stat_sz:		Total size of regions that this scheme is applied.
  * @list:		List head for siblings.
  *
- * For each aggregation interval, DAMON applies @action to monitoring target
- * regions fit in the condition and updates the statistics.  Note that both
- * the minimums and the maximums are inclusive.
+ * For each aggregation interval, DAMON finds regions which fit in the
+ * condition (&min_sz_region, &max_sz_region, &min_nr_accesses,
+ * &max_nr_accesses, &min_age_region, &max_age_region) and applies &action to
+ * those.  To avoid consuming too much CPU time or IO resources for the
+ * &action, &quota is used.
+ *
+ * After applying the &action to each region, &stat_count and &stat_sz is
+ * updated to reflect the number of regions and total size of regions that the
+ * &action is applied.
  */
 struct damos {
 	unsigned long min_sz_region;
@@ -114,6 +141,7 @@ struct damos {
 	unsigned int min_age_region;
 	unsigned int max_age_region;
 	enum damos_action action;
+	struct damos_quota quota;
 	unsigned long stat_count;
 	unsigned long stat_sz;
 	struct list_head list;
@@ -310,7 +338,7 @@ struct damos *damon_new_scheme(
 		unsigned long min_sz_region, unsigned long max_sz_region,
 		unsigned int min_nr_accesses, unsigned int max_nr_accesses,
 		unsigned int min_age_region, unsigned int max_age_region,
-		enum damos_action action);
+		enum damos_action action, struct damos_quota *quota);
 void damon_add_scheme(struct damon_ctx *ctx, struct damos *s);
 void damon_destroy_scheme(struct damos *s);
 
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 2f6785737902d..cce14a0d5c725 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -89,7 +89,7 @@ struct damos *damon_new_scheme(
 		unsigned long min_sz_region, unsigned long max_sz_region,
 		unsigned int min_nr_accesses, unsigned int max_nr_accesses,
 		unsigned int min_age_region, unsigned int max_age_region,
-		enum damos_action action)
+		enum damos_action action, struct damos_quota *quota)
 {
 	struct damos *scheme;
 
@@ -107,6 +107,11 @@ struct damos *damon_new_scheme(
 	scheme->stat_sz = 0;
 	INIT_LIST_HEAD(&scheme->list);
 
+	scheme->quota.sz = quota->sz;
+	scheme->quota.reset_interval = quota->reset_interval;
+	scheme->quota.charged_sz = 0;
+	scheme->quota.charged_from = 0;
+
 	return scheme;
 }
 
@@ -530,15 +535,25 @@ static void kdamond_reset_aggregated(struct damon_ctx *c)
 	}
 }
 
+static void damon_split_region_at(struct damon_ctx *ctx,
+		struct damon_target *t, struct damon_region *r,
+		unsigned long sz_r);
+
 static void damon_do_apply_schemes(struct damon_ctx *c,
 				   struct damon_target *t,
 				   struct damon_region *r)
 {
 	struct damos *s;
-	unsigned long sz;
 
 	damon_for_each_scheme(s, c) {
-		sz = r->ar.end - r->ar.start;
+		struct damos_quota *quota = &s->quota;
+		unsigned long sz = r->ar.end - r->ar.start;
+
+		/* Check the quota */
+		if (quota->sz && quota->charged_sz >= quota->sz)
+			continue;
+
+		/* Check the target regions condition */
 		if (sz < s->min_sz_region || s->max_sz_region < sz)
 			continue;
 		if (r->nr_accesses < s->min_nr_accesses ||
@@ -546,22 +561,51 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 			continue;
 		if (r->age < s->min_age_region || s->max_age_region < r->age)
 			continue;
-		s->stat_count++;
-		s->stat_sz += sz;
-		if (c->primitive.apply_scheme)
+
+		/* Apply the scheme */
+		if (c->primitive.apply_scheme) {
+			if (quota->sz && quota->charged_sz + sz > quota->sz) {
+				sz = ALIGN_DOWN(quota->sz - quota->charged_sz,
+						DAMON_MIN_REGION);
+				if (!sz)
+					goto update_stat;
+				damon_split_region_at(c, t, r, sz);
+			}
 			c->primitive.apply_scheme(c, t, r, s);
+			quota->charged_sz += sz;
+		}
 		if (s->action != DAMOS_STAT)
 			r->age = 0;
+
+update_stat:
+		s->stat_count++;
+		s->stat_sz += sz;
 	}
 }
 
 static void kdamond_apply_schemes(struct damon_ctx *c)
 {
 	struct damon_target *t;
-	struct damon_region *r;
+	struct damon_region *r, *next_r;
+	struct damos *s;
+
+	damon_for_each_scheme(s, c) {
+		struct damos_quota *quota = &s->quota;
+
+		if (!quota->sz)
+			continue;
+
+		/* New charge window starts */
+		if (time_after_eq(jiffies, quota->charged_from +
+					msecs_to_jiffies(
+						quota->reset_interval))) {
+			quota->charged_from = jiffies;
+			quota->charged_sz = 0;
+		}
+	}
 
 	damon_for_each_target(t, c) {
-		damon_for_each_region(r, t)
+		damon_for_each_region_safe(r, next_r, t)
 			damon_do_apply_schemes(c, t, r);
 	}
 }
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index c90988a20fa4f..a04bd50cc4c4e 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -188,6 +188,8 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 
 	*nr_schemes = 0;
 	while (pos < len && *nr_schemes < max_nr_schemes) {
+		struct damos_quota quota = {};
+
 		ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u%n",
 				&min_sz, &max_sz, &min_nr_a, &max_nr_a,
 				&min_age, &max_age, &action, &parsed);
@@ -200,7 +202,7 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 
 		pos += parsed;
 		scheme = damon_new_scheme(min_sz, max_sz, min_nr_a, max_nr_a,
-				min_age, max_age, action);
+				min_age, max_age, action, &quota);
 		if (!scheme)
 			goto fail;
 
-- 
GitLab


From a7e263a0c59ead467a72ec2e8ecd33b102d7187b Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:20 -0700
Subject: [PATCH 4813/4878] UPSTREAM: mm/damon/schemes: skip already charged
 targets and regions

If DAMOS has stopped applying action in the middle of a group of memory
regions due to its size quota, it starts the work again from the
beginning of the address space in the next charge window.  If there is a
huge memory region at the beginning of the address space and it fulfills
the scheme's target data access pattern always, the action will applied
to only the region.

This mitigates the case by skipping memory regions that charged in
current charge window at the beginning of next charge window.

Link: https://lkml.kernel.org/r/20211019150731.16699-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 50585192bc2ef9309d32dabdbb5e735679f4f128)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I73d1b16851b2dbe57927d9685b53e7ab3ad22a9c
---
 include/linux/damon.h |  5 +++++
 mm/damon/core.c       | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 3a1ce9d9921c8..585d985768fd1 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -107,6 +107,8 @@ struct damos_quota {
 /* private: For charging the quota */
 	unsigned long charged_sz;
 	unsigned long charged_from;
+	struct damon_target *charge_target_from;
+	unsigned long charge_addr_from;
 };
 
 /**
@@ -307,6 +309,9 @@ struct damon_ctx {
 #define damon_prev_region(r) \
 	(container_of(r->list.prev, struct damon_region, list))
 
+#define damon_last_region(t) \
+	(list_last_entry(&t->regions_list, struct damon_region, list))
+
 #define damon_for_each_region(r, t) \
 	list_for_each_entry(r, &t->regions_list, list)
 
diff --git a/mm/damon/core.c b/mm/damon/core.c
index cce14a0d5c725..693b75bc34505 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -111,6 +111,8 @@ struct damos *damon_new_scheme(
 	scheme->quota.reset_interval = quota->reset_interval;
 	scheme->quota.charged_sz = 0;
 	scheme->quota.charged_from = 0;
+	scheme->quota.charge_target_from = NULL;
+	scheme->quota.charge_addr_from = 0;
 
 	return scheme;
 }
@@ -553,6 +555,37 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 		if (quota->sz && quota->charged_sz >= quota->sz)
 			continue;
 
+		/* Skip previously charged regions */
+		if (quota->charge_target_from) {
+			if (t != quota->charge_target_from)
+				continue;
+			if (r == damon_last_region(t)) {
+				quota->charge_target_from = NULL;
+				quota->charge_addr_from = 0;
+				continue;
+			}
+			if (quota->charge_addr_from &&
+					r->ar.end <= quota->charge_addr_from)
+				continue;
+
+			if (quota->charge_addr_from && r->ar.start <
+					quota->charge_addr_from) {
+				sz = ALIGN_DOWN(quota->charge_addr_from -
+						r->ar.start, DAMON_MIN_REGION);
+				if (!sz) {
+					if (r->ar.end - r->ar.start <=
+							DAMON_MIN_REGION)
+						continue;
+					sz = DAMON_MIN_REGION;
+				}
+				damon_split_region_at(c, t, r, sz);
+				r = damon_next_region(r);
+				sz = r->ar.end - r->ar.start;
+			}
+			quota->charge_target_from = NULL;
+			quota->charge_addr_from = 0;
+		}
+
 		/* Check the target regions condition */
 		if (sz < s->min_sz_region || s->max_sz_region < sz)
 			continue;
@@ -573,6 +606,10 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 			}
 			c->primitive.apply_scheme(c, t, r, s);
 			quota->charged_sz += sz;
+			if (quota->sz && quota->charged_sz >= quota->sz) {
+				quota->charge_target_from = t;
+				quota->charge_addr_from = r->ar.end + 1;
+			}
 		}
 		if (s->action != DAMOS_STAT)
 			r->age = 0;
-- 
GitLab


From e2eee39ec1203dc5ce98492a1158c28fd4ff1364 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:23 -0700
Subject: [PATCH 4814/4878] UPSTREAM: mm/damon/schemes: implement time quota

The size quota feature of DAMOS is useful for IO resource-critical
systems, but not so intuitive for CPU time-critical systems.  Systems
using zram or zswap-like swap device would be examples.

To provide another intuitive ways for such systems, this implements
time-based quota for DAMON-based Operation Schemes.  If the quota is
set, DAMOS tries to use only up to the user-defined quota of CPU time
within a given time window.

Link: https://lkml.kernel.org/r/20211019150731.16699-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 1cd2430300594a230dba9178ac9e286d868d9da2)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I5ee77a0882cb67d76f7f24ce7742414718ba028c
---
 include/linux/damon.h | 25 +++++++++++++++++++-----
 mm/damon/core.c       | 45 ++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 60 insertions(+), 10 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 585d985768fd1..1e7671bf3d23a 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -91,20 +91,35 @@ enum damos_action {
 
 /**
  * struct damos_quota - Controls the aggressiveness of the given scheme.
+ * @ms:			Maximum milliseconds that the scheme can use.
  * @sz:			Maximum bytes of memory that the action can be applied.
  * @reset_interval:	Charge reset interval in milliseconds.
  *
  * To avoid consuming too much CPU time or IO resources for applying the
- * &struct damos->action to large memory, DAMON allows users to set a size
- * quota.  The quota can be set by writing non-zero values to &sz.  If the size
- * quota is set, DAMON tries to apply the action only up to &sz bytes within
- * &reset_interval.
+ * &struct damos->action to large memory, DAMON allows users to set time and/or
+ * size quotas.  The quotas can be set by writing non-zero values to &ms and
+ * &sz, respectively.  If the time quota is set, DAMON tries to use only up to
+ * &ms milliseconds within &reset_interval for applying the action.  If the
+ * size quota is set, DAMON tries to apply the action only up to &sz bytes
+ * within &reset_interval.
+ *
+ * Internally, the time quota is transformed to a size quota using estimated
+ * throughput of the scheme's action.  DAMON then compares it against &sz and
+ * uses smaller one as the effective quota.
  */
 struct damos_quota {
+	unsigned long ms;
 	unsigned long sz;
 	unsigned long reset_interval;
 
-/* private: For charging the quota */
+/* private: */
+	/* For throughput estimation */
+	unsigned long total_charged_sz;
+	unsigned long total_charged_ns;
+
+	unsigned long esz;	/* Effective size quota in bytes */
+
+	/* For charging the quota */
 	unsigned long charged_sz;
 	unsigned long charged_from;
 	struct damon_target *charge_target_from;
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 693b75bc34505..d1da4bef96ede 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -107,8 +107,12 @@ struct damos *damon_new_scheme(
 	scheme->stat_sz = 0;
 	INIT_LIST_HEAD(&scheme->list);
 
+	scheme->quota.ms = quota->ms;
 	scheme->quota.sz = quota->sz;
 	scheme->quota.reset_interval = quota->reset_interval;
+	scheme->quota.total_charged_sz = 0;
+	scheme->quota.total_charged_ns = 0;
+	scheme->quota.esz = 0;
 	scheme->quota.charged_sz = 0;
 	scheme->quota.charged_from = 0;
 	scheme->quota.charge_target_from = NULL;
@@ -550,9 +554,10 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 	damon_for_each_scheme(s, c) {
 		struct damos_quota *quota = &s->quota;
 		unsigned long sz = r->ar.end - r->ar.start;
+		struct timespec64 begin, end;
 
 		/* Check the quota */
-		if (quota->sz && quota->charged_sz >= quota->sz)
+		if (quota->esz && quota->charged_sz >= quota->esz)
 			continue;
 
 		/* Skip previously charged regions */
@@ -597,16 +602,21 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 
 		/* Apply the scheme */
 		if (c->primitive.apply_scheme) {
-			if (quota->sz && quota->charged_sz + sz > quota->sz) {
-				sz = ALIGN_DOWN(quota->sz - quota->charged_sz,
+			if (quota->esz &&
+					quota->charged_sz + sz > quota->esz) {
+				sz = ALIGN_DOWN(quota->esz - quota->charged_sz,
 						DAMON_MIN_REGION);
 				if (!sz)
 					goto update_stat;
 				damon_split_region_at(c, t, r, sz);
 			}
+			ktime_get_coarse_ts64(&begin);
 			c->primitive.apply_scheme(c, t, r, s);
+			ktime_get_coarse_ts64(&end);
+			quota->total_charged_ns += timespec64_to_ns(&end) -
+				timespec64_to_ns(&begin);
 			quota->charged_sz += sz;
-			if (quota->sz && quota->charged_sz >= quota->sz) {
+			if (quota->esz && quota->charged_sz >= quota->esz) {
 				quota->charge_target_from = t;
 				quota->charge_addr_from = r->ar.end + 1;
 			}
@@ -620,6 +630,29 @@ update_stat:
 	}
 }
 
+/* Shouldn't be called if quota->ms and quota->sz are zero */
+static void damos_set_effective_quota(struct damos_quota *quota)
+{
+	unsigned long throughput;
+	unsigned long esz;
+
+	if (!quota->ms) {
+		quota->esz = quota->sz;
+		return;
+	}
+
+	if (quota->total_charged_ns)
+		throughput = quota->total_charged_sz * 1000000 /
+			quota->total_charged_ns;
+	else
+		throughput = PAGE_SIZE * 1024;
+	esz = throughput * quota->ms;
+
+	if (quota->sz && quota->sz < esz)
+		esz = quota->sz;
+	quota->esz = esz;
+}
+
 static void kdamond_apply_schemes(struct damon_ctx *c)
 {
 	struct damon_target *t;
@@ -629,15 +662,17 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
 	damon_for_each_scheme(s, c) {
 		struct damos_quota *quota = &s->quota;
 
-		if (!quota->sz)
+		if (!quota->ms && !quota->sz)
 			continue;
 
 		/* New charge window starts */
 		if (time_after_eq(jiffies, quota->charged_from +
 					msecs_to_jiffies(
 						quota->reset_interval))) {
+			quota->total_charged_sz += quota->charged_sz;
 			quota->charged_from = jiffies;
 			quota->charged_sz = 0;
+			damos_set_effective_quota(quota);
 		}
 	}
 
-- 
GitLab


From 350631992ffb7db761c6466d433418193131a547 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:27 -0700
Subject: [PATCH 4815/4878] UPSTREAM: mm/damon/dbgfs: support quotas of schemes

This makes the debugfs interface of DAMON support the scheme quotas by
chaning the format of the input for the schemes file.

Link: https://lkml.kernel.org/r/20211019150731.16699-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit d7d0ec85e983945079364db3c3d2d80cc795a48c)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I2260814672b0b9db7f0b416505bfa767fa0fa00b
---
 mm/damon/dbgfs.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index a04bd50cc4c4e..097e6745ba75c 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -105,11 +105,14 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 
 	damon_for_each_scheme(s, c) {
 		rc = scnprintf(&buf[written], len - written,
-				"%lu %lu %u %u %u %u %d %lu %lu\n",
+				"%lu %lu %u %u %u %u %d %lu %lu %lu %lu %lu\n",
 				s->min_sz_region, s->max_sz_region,
 				s->min_nr_accesses, s->max_nr_accesses,
 				s->min_age_region, s->max_age_region,
-				s->action, s->stat_count, s->stat_sz);
+				s->action,
+				s->quota.ms, s->quota.sz,
+				s->quota.reset_interval,
+				s->stat_count, s->stat_sz);
 		if (!rc)
 			return -ENOMEM;
 
@@ -190,10 +193,11 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 	while (pos < len && *nr_schemes < max_nr_schemes) {
 		struct damos_quota quota = {};
 
-		ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u%n",
+		ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u %lu %lu %lu%n",
 				&min_sz, &max_sz, &min_nr_a, &max_nr_a,
-				&min_age, &max_age, &action, &parsed);
-		if (ret != 7)
+				&min_age, &max_age, &action, &quota.ms,
+				&quota.sz, &quota.reset_interval, &parsed);
+		if (ret != 10)
 			break;
 		if (!damos_action_valid(action)) {
 			pr_err("wrong action %d\n", action);
-- 
GitLab


From 6a0d2afdab6f0bdb0e782744df2a0b90fd854e79 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:30 -0700
Subject: [PATCH 4816/4878] UPSTREAM: mm/damon/selftests: support schemes
 quotas

This updates DAMON selftests to support updated schemes debugfs file
format for the quotas.

Link: https://lkml.kernel.org/r/20211019150731.16699-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit a2cb4dd0d40d3dcb7288a963d0f66271934417b6)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I6e8ea947a6f999daef8ee52cd882d17dda6ae098
---
 tools/testing/selftests/damon/debugfs_attrs.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
index 639cfb6a1f651..8e33a7b584e70 100644
--- a/tools/testing/selftests/damon/debugfs_attrs.sh
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -63,10 +63,10 @@ echo "$orig_content" > "$file"
 file="$DBGFS/schemes"
 orig_content=$(cat "$file")
 
-test_write_succ "$file" "1 2 3 4 5 6 4" \
+test_write_succ "$file" "1 2 3 4 5 6 4 0 0 0" \
 	"$orig_content" "valid input"
 test_write_fail "$file" "1 2
-3 4 5 6 3" "$orig_content" "multi lines"
+3 4 5 6 3 0 0 0" "$orig_content" "multi lines"
 test_write_succ "$file" "" "$orig_content" "disabling"
 echo "$orig_content" > "$file"
 
-- 
GitLab


From 76fb24657c70333f3b15ccdb87041e32ae21416f Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:33 -0700
Subject: [PATCH 4817/4878] UPSTREAM: mm/damon/schemes: prioritize regions
 within the quotas

This makes DAMON apply schemes to regions having higher priority first,
if it cannot apply schemes to all regions due to the quotas.

The prioritization function should be implemented in the monitoring
primitives.  Those would commonly calculate the priority of the region
using attributes of regions, namely 'size', 'nr_accesses', and 'age'.
For example, some primitive would calculate the priority of each region
using a weighted sum of 'nr_accesses' and 'age' of the region.

The optimal weights would depend on give environments, so this makes
those customizable.  Nevertheless, the score calculation functions are
only encouraged to respect the weights, not mandated.

Link: https://lkml.kernel.org/r/20211019150731.16699-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 38683e003153f7abfa612d7b7fe147efa4624af2)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I7c96b116f7daf1d33df427b023aba3664951e2cb
---
 include/linux/damon.h | 26 ++++++++++++++++++
 mm/damon/core.c       | 62 ++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 81 insertions(+), 7 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 1e7671bf3d23a..5d47ad9e3911b 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -14,6 +14,8 @@
 
 /* Minimal region size.  Every damon_region is aligned by this. */
 #define DAMON_MIN_REGION	PAGE_SIZE
+/* Max priority score for DAMON-based operation schemes */
+#define DAMOS_MAX_SCORE		(99)
 
 /**
  * struct damon_addr_range - Represents an address region of [@start, @end).
@@ -95,6 +97,10 @@ enum damos_action {
  * @sz:			Maximum bytes of memory that the action can be applied.
  * @reset_interval:	Charge reset interval in milliseconds.
  *
+ * @weight_sz:		Weight of the region's size for prioritization.
+ * @weight_nr_accesses:	Weight of the region's nr_accesses for prioritization.
+ * @weight_age:		Weight of the region's age for prioritization.
+ *
  * To avoid consuming too much CPU time or IO resources for applying the
  * &struct damos->action to large memory, DAMON allows users to set time and/or
  * size quotas.  The quotas can be set by writing non-zero values to &ms and
@@ -106,12 +112,22 @@ enum damos_action {
  * Internally, the time quota is transformed to a size quota using estimated
  * throughput of the scheme's action.  DAMON then compares it against &sz and
  * uses smaller one as the effective quota.
+ *
+ * For selecting regions within the quota, DAMON prioritizes current scheme's
+ * target memory regions using the &struct damon_primitive->get_scheme_score.
+ * You could customize the prioritization logic by setting &weight_sz,
+ * &weight_nr_accesses, and &weight_age, because monitoring primitives are
+ * encouraged to respect those.
  */
 struct damos_quota {
 	unsigned long ms;
 	unsigned long sz;
 	unsigned long reset_interval;
 
+	unsigned int weight_sz;
+	unsigned int weight_nr_accesses;
+	unsigned int weight_age;
+
 /* private: */
 	/* For throughput estimation */
 	unsigned long total_charged_sz;
@@ -124,6 +140,10 @@ struct damos_quota {
 	unsigned long charged_from;
 	struct damon_target *charge_target_from;
 	unsigned long charge_addr_from;
+
+	/* For prioritization */
+	unsigned long histogram[DAMOS_MAX_SCORE + 1];
+	unsigned int min_score;
 };
 
 /**
@@ -174,6 +194,7 @@ struct damon_ctx;
  * @prepare_access_checks:	Prepare next access check of target regions.
  * @check_accesses:		Check the accesses to target regions.
  * @reset_aggregated:		Reset aggregated accesses monitoring results.
+ * @get_scheme_score:		Get the score of a region for a scheme.
  * @apply_scheme:		Apply a DAMON-based operation scheme.
  * @target_valid:		Determine if the target is valid.
  * @cleanup:			Clean up the context.
@@ -200,6 +221,8 @@ struct damon_ctx;
  * of its update.  The value will be used for regions adjustment threshold.
  * @reset_aggregated should reset the access monitoring results that aggregated
  * by @check_accesses.
+ * @get_scheme_score should return the priority score of a region for a scheme
+ * as an integer in [0, &DAMOS_MAX_SCORE].
  * @apply_scheme is called from @kdamond when a region for user provided
  * DAMON-based operation scheme is found.  It should apply the scheme's action
  * to the region.  This is not used for &DAMON_ARBITRARY_TARGET case.
@@ -213,6 +236,9 @@ struct damon_primitive {
 	void (*prepare_access_checks)(struct damon_ctx *context);
 	unsigned int (*check_accesses)(struct damon_ctx *context);
 	void (*reset_aggregated)(struct damon_ctx *context);
+	int (*get_scheme_score)(struct damon_ctx *context,
+			struct damon_target *t, struct damon_region *r,
+			struct damos *scheme);
 	int (*apply_scheme)(struct damon_ctx *context, struct damon_target *t,
 			struct damon_region *r, struct damos *scheme);
 	bool (*target_valid)(void *target);
diff --git a/mm/damon/core.c b/mm/damon/core.c
index d1da4bef96ede..fad25778e2ecf 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -12,6 +12,7 @@
 #include <linux/kthread.h>
 #include <linux/random.h>
 #include <linux/slab.h>
+#include <linux/string.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/damon.h>
@@ -110,6 +111,9 @@ struct damos *damon_new_scheme(
 	scheme->quota.ms = quota->ms;
 	scheme->quota.sz = quota->sz;
 	scheme->quota.reset_interval = quota->reset_interval;
+	scheme->quota.weight_sz = quota->weight_sz;
+	scheme->quota.weight_nr_accesses = quota->weight_nr_accesses;
+	scheme->quota.weight_age = quota->weight_age;
 	scheme->quota.total_charged_sz = 0;
 	scheme->quota.total_charged_ns = 0;
 	scheme->quota.esz = 0;
@@ -545,6 +549,28 @@ static void damon_split_region_at(struct damon_ctx *ctx,
 		struct damon_target *t, struct damon_region *r,
 		unsigned long sz_r);
 
+static bool __damos_valid_target(struct damon_region *r, struct damos *s)
+{
+	unsigned long sz;
+
+	sz = r->ar.end - r->ar.start;
+	return s->min_sz_region <= sz && sz <= s->max_sz_region &&
+		s->min_nr_accesses <= r->nr_accesses &&
+		r->nr_accesses <= s->max_nr_accesses &&
+		s->min_age_region <= r->age && r->age <= s->max_age_region;
+}
+
+static bool damos_valid_target(struct damon_ctx *c, struct damon_target *t,
+		struct damon_region *r, struct damos *s)
+{
+	bool ret = __damos_valid_target(r, s);
+
+	if (!ret || !s->quota.esz || !c->primitive.get_scheme_score)
+		return ret;
+
+	return c->primitive.get_scheme_score(c, t, r, s) >= s->quota.min_score;
+}
+
 static void damon_do_apply_schemes(struct damon_ctx *c,
 				   struct damon_target *t,
 				   struct damon_region *r)
@@ -591,13 +617,7 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 			quota->charge_addr_from = 0;
 		}
 
-		/* Check the target regions condition */
-		if (sz < s->min_sz_region || s->max_sz_region < sz)
-			continue;
-		if (r->nr_accesses < s->min_nr_accesses ||
-				s->max_nr_accesses < r->nr_accesses)
-			continue;
-		if (r->age < s->min_age_region || s->max_age_region < r->age)
+		if (!damos_valid_target(c, t, r, s))
 			continue;
 
 		/* Apply the scheme */
@@ -661,6 +681,8 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
 
 	damon_for_each_scheme(s, c) {
 		struct damos_quota *quota = &s->quota;
+		unsigned long cumulated_sz;
+		unsigned int score, max_score = 0;
 
 		if (!quota->ms && !quota->sz)
 			continue;
@@ -674,6 +696,32 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
 			quota->charged_sz = 0;
 			damos_set_effective_quota(quota);
 		}
+
+		if (!c->primitive.get_scheme_score)
+			continue;
+
+		/* Fill up the score histogram */
+		memset(quota->histogram, 0, sizeof(quota->histogram));
+		damon_for_each_target(t, c) {
+			damon_for_each_region(r, t) {
+				if (!__damos_valid_target(r, s))
+					continue;
+				score = c->primitive.get_scheme_score(
+						c, t, r, s);
+				quota->histogram[score] +=
+					r->ar.end - r->ar.start;
+				if (score > max_score)
+					max_score = score;
+			}
+		}
+
+		/* Set the min score limit */
+		for (cumulated_sz = 0, score = max_score; ; score--) {
+			cumulated_sz += quota->histogram[score];
+			if (cumulated_sz >= quota->esz || !score)
+				break;
+		}
+		quota->min_score = score;
 	}
 
 	damon_for_each_target(t, c) {
-- 
GitLab


From 2b85e83330ffc71cb848b22ecb92728650c64ee0 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:37 -0700
Subject: [PATCH 4818/4878] UPSTREAM: mm/damon/vaddr,paddr: support pageout
 prioritization

This makes the default monitoring primitives for virtual address spaces
and the physical address sapce to support memory regions prioritization
for 'PAGEOUT' DAMOS action.  It calculates hotness of each region as
weighted sum of 'nr_accesses' and 'age' of the region and get the
priority score as reverse of the hotness, so that cold regions can be
paged out first.

Link: https://lkml.kernel.org/r/20211019150731.16699-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 198f0f4c58b9f481e4e51c8c70a6ab9852bbab7f)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I5f8f8d5e3b0669ec48fa6d698b963091c892106d
---
 include/linux/damon.h   |  4 ++++
 mm/damon/paddr.c        | 14 +++++++++++++
 mm/damon/prmtv-common.c | 46 +++++++++++++++++++++++++++++++++++++++++
 mm/damon/prmtv-common.h |  3 +++
 mm/damon/vaddr.c        | 15 ++++++++++++++
 5 files changed, 82 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 5d47ad9e3911b..1217566a0ebcf 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -421,6 +421,8 @@ bool damon_va_target_valid(void *t);
 void damon_va_cleanup(struct damon_ctx *ctx);
 int damon_va_apply_scheme(struct damon_ctx *context, struct damon_target *t,
 		struct damon_region *r, struct damos *scheme);
+int damon_va_scheme_score(struct damon_ctx *context, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme);
 void damon_va_set_primitives(struct damon_ctx *ctx);
 
 #endif	/* CONFIG_DAMON_VADDR */
@@ -433,6 +435,8 @@ unsigned int damon_pa_check_accesses(struct damon_ctx *ctx);
 bool damon_pa_target_valid(void *t);
 int damon_pa_apply_scheme(struct damon_ctx *context, struct damon_target *t,
 		struct damon_region *r, struct damos *scheme);
+int damon_pa_scheme_score(struct damon_ctx *context, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme);
 void damon_pa_set_primitives(struct damon_ctx *ctx);
 
 #endif	/* CONFIG_DAMON_PADDR */
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index 957ada55de77b..a496d6f203d64 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -246,6 +246,19 @@ int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	return 0;
 }
 
+int damon_pa_scheme_score(struct damon_ctx *context, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme)
+{
+	switch (scheme->action) {
+	case DAMOS_PAGEOUT:
+		return damon_pageout_score(context, r, scheme);
+	default:
+		break;
+	}
+
+	return DAMOS_MAX_SCORE;
+}
+
 void damon_pa_set_primitives(struct damon_ctx *ctx)
 {
 	ctx->primitive.init = NULL;
@@ -256,4 +269,5 @@ void damon_pa_set_primitives(struct damon_ctx *ctx)
 	ctx->primitive.target_valid = damon_pa_target_valid;
 	ctx->primitive.cleanup = NULL;
 	ctx->primitive.apply_scheme = damon_pa_apply_scheme;
+	ctx->primitive.get_scheme_score = damon_pa_scheme_score;
 }
diff --git a/mm/damon/prmtv-common.c b/mm/damon/prmtv-common.c
index 7e62ee54fb543..92a04f5831d6b 100644
--- a/mm/damon/prmtv-common.c
+++ b/mm/damon/prmtv-common.c
@@ -85,3 +85,49 @@ void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm, unsigned long addr)
 	put_page(page);
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 }
+
+#define DAMON_MAX_SUBSCORE	(100)
+#define DAMON_MAX_AGE_IN_LOG	(32)
+
+int damon_pageout_score(struct damon_ctx *c, struct damon_region *r,
+			struct damos *s)
+{
+	unsigned int max_nr_accesses;
+	int freq_subscore;
+	unsigned int age_in_sec;
+	int age_in_log, age_subscore;
+	unsigned int freq_weight = s->quota.weight_nr_accesses;
+	unsigned int age_weight = s->quota.weight_age;
+	int hotness;
+
+	max_nr_accesses = c->aggr_interval / c->sample_interval;
+	freq_subscore = r->nr_accesses * DAMON_MAX_SUBSCORE / max_nr_accesses;
+
+	age_in_sec = (unsigned long)r->age * c->aggr_interval / 1000000;
+	for (age_in_log = 0; age_in_log < DAMON_MAX_AGE_IN_LOG && age_in_sec;
+			age_in_log++, age_in_sec >>= 1)
+		;
+
+	/* If frequency is 0, higher age means it's colder */
+	if (freq_subscore == 0)
+		age_in_log *= -1;
+
+	/*
+	 * Now age_in_log is in [-DAMON_MAX_AGE_IN_LOG, DAMON_MAX_AGE_IN_LOG].
+	 * Scale it to be in [0, 100] and set it as age subscore.
+	 */
+	age_in_log += DAMON_MAX_AGE_IN_LOG;
+	age_subscore = age_in_log * DAMON_MAX_SUBSCORE /
+		DAMON_MAX_AGE_IN_LOG / 2;
+
+	hotness = (freq_weight * freq_subscore + age_weight * age_subscore);
+	if (freq_weight + age_weight)
+		hotness /= freq_weight + age_weight;
+	/*
+	 * Transform it to fit in [0, DAMOS_MAX_SCORE]
+	 */
+	hotness = hotness * DAMOS_MAX_SCORE / DAMON_MAX_SUBSCORE;
+
+	/* Return coldness of the region */
+	return DAMOS_MAX_SCORE - hotness;
+}
diff --git a/mm/damon/prmtv-common.h b/mm/damon/prmtv-common.h
index 7093d19e5d428..61f27037603e1 100644
--- a/mm/damon/prmtv-common.h
+++ b/mm/damon/prmtv-common.h
@@ -15,3 +15,6 @@ struct page *damon_get_page(unsigned long pfn);
 
 void damon_ptep_mkold(pte_t *pte, struct mm_struct *mm, unsigned long addr);
 void damon_pmdp_mkold(pmd_t *pmd, struct mm_struct *mm, unsigned long addr);
+
+int damon_pageout_score(struct damon_ctx *c, struct damon_region *r,
+			struct damos *s);
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 758501b8d97db..675cd8c7df9b8 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -633,6 +633,20 @@ int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	return damos_madvise(t, r, madv_action);
 }
 
+int damon_va_scheme_score(struct damon_ctx *context, struct damon_target *t,
+		struct damon_region *r, struct damos *scheme)
+{
+
+	switch (scheme->action) {
+	case DAMOS_PAGEOUT:
+		return damon_pageout_score(context, r, scheme);
+	default:
+		break;
+	}
+
+	return DAMOS_MAX_SCORE;
+}
+
 void damon_va_set_primitives(struct damon_ctx *ctx)
 {
 	ctx->primitive.init = damon_va_init;
@@ -643,6 +657,7 @@ void damon_va_set_primitives(struct damon_ctx *ctx)
 	ctx->primitive.target_valid = damon_va_target_valid;
 	ctx->primitive.cleanup = NULL;
 	ctx->primitive.apply_scheme = damon_va_apply_scheme;
+	ctx->primitive.get_scheme_score = damon_va_scheme_score;
 }
 
 #include "vaddr-test.h"
-- 
GitLab


From 98260e4ee7fe2d7be0c93b17bec1166a3c88f83d Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:40 -0700
Subject: [PATCH 4819/4878] UPSTREAM: mm/damon/dbgfs: support prioritization
 weights

This allows DAMON debugfs interface users set the prioritization weights
by putting three more numbers to the 'schemes' file.

Link: https://lkml.kernel.org/r/20211019150731.16699-10-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit f4a68b4a04e6db9397f7776c51d0f9715bd1a60e)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ia47dfebe9817da3e0d669ea996c0d3b44f980936
---
 mm/damon/dbgfs.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 097e6745ba75c..20c4feb8b918c 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -105,13 +105,16 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 
 	damon_for_each_scheme(s, c) {
 		rc = scnprintf(&buf[written], len - written,
-				"%lu %lu %u %u %u %u %d %lu %lu %lu %lu %lu\n",
+				"%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %lu %lu\n",
 				s->min_sz_region, s->max_sz_region,
 				s->min_nr_accesses, s->max_nr_accesses,
 				s->min_age_region, s->max_age_region,
 				s->action,
 				s->quota.ms, s->quota.sz,
 				s->quota.reset_interval,
+				s->quota.weight_sz,
+				s->quota.weight_nr_accesses,
+				s->quota.weight_age,
 				s->stat_count, s->stat_sz);
 		if (!rc)
 			return -ENOMEM;
@@ -193,11 +196,14 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 	while (pos < len && *nr_schemes < max_nr_schemes) {
 		struct damos_quota quota = {};
 
-		ret = sscanf(&str[pos], "%lu %lu %u %u %u %u %u %lu %lu %lu%n",
+		ret = sscanf(&str[pos],
+				"%lu %lu %u %u %u %u %u %lu %lu %lu %u %u %u%n",
 				&min_sz, &max_sz, &min_nr_a, &max_nr_a,
 				&min_age, &max_age, &action, &quota.ms,
-				&quota.sz, &quota.reset_interval, &parsed);
-		if (ret != 10)
+				&quota.sz, &quota.reset_interval,
+				&quota.weight_sz, &quota.weight_nr_accesses,
+				&quota.weight_age, &parsed);
+		if (ret != 13)
 			break;
 		if (!damos_action_valid(action)) {
 			pr_err("wrong action %d\n", action);
-- 
GitLab


From f4a02dbcefb6f020dca2938e99c11422e454e7a1 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:44 -0700
Subject: [PATCH 4820/4878] UPSTREAM: tools/selftests/damon: update for regions
 prioritization of schemes

This updates the DAMON selftests for 'schemes' debugfs file, as the file
format is updated.

Link: https://lkml.kernel.org/r/20211019150731.16699-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5a0d6a08b81162fbe1e207f02571ace6d888f8b0)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I3a70ee8105555cc65987914c2c43973e5d3f9fd3
---
 tools/testing/selftests/damon/debugfs_attrs.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
index 8e33a7b584e70..466dbeb37e31e 100644
--- a/tools/testing/selftests/damon/debugfs_attrs.sh
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -63,10 +63,10 @@ echo "$orig_content" > "$file"
 file="$DBGFS/schemes"
 orig_content=$(cat "$file")
 
-test_write_succ "$file" "1 2 3 4 5 6 4 0 0 0" \
+test_write_succ "$file" "1 2 3 4 5 6 4 0 0 0 1 2 3" \
 	"$orig_content" "valid input"
 test_write_fail "$file" "1 2
-3 4 5 6 3 0 0 0" "$orig_content" "multi lines"
+3 4 5 6 3 0 0 0 1 2 3" "$orig_content" "multi lines"
 test_write_succ "$file" "" "$orig_content" "disabling"
 echo "$orig_content" > "$file"
 
-- 
GitLab


From 62bd89b42a99fc89a121d5f508b680e4b822ee5e Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:47 -0700
Subject: [PATCH 4821/4878] UPSTREAM: mm/damon/schemes: activate schemes based
 on a watermarks mechanism

DAMON-based operation schemes need to be manually turned on and off.  In
some use cases, however, the condition for turning a scheme on and off
would depend on the system's situation.  For example, schemes for
proactive pages reclamation would need to be turned on when some memory
pressure is detected, and turned off when the system has enough free
memory.

For easier control of schemes activation based on the system situation,
this introduces a watermarks-based mechanism.  The client can describe
the watermark metric (e.g., amount of free memory in the system),
watermark check interval, and three watermarks, namely high, mid, and
low.  If the scheme is deactivated, it only gets the metric and compare
that to the three watermarks for every check interval.  If the metric is
higher than the high watermark, the scheme is deactivated.  If the
metric is between the mid watermark and the low watermark, the scheme is
activated.  If the metric is lower than the low watermark, the scheme is
deactivated again.  This is to allow users fall back to traditional
page-granularity mechanisms.

Link: https://lkml.kernel.org/r/20211019150731.16699-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit ee801b7dd7822a82fd7663048ad649545fac6df3)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I857d0aeab8aa58929ea71c8e9d42b3b93966fc51
---
 include/linux/damon.h | 52 ++++++++++++++++++++++-
 mm/damon/core.c       | 97 ++++++++++++++++++++++++++++++++++++++++++-
 mm/damon/dbgfs.c      |  5 ++-
 3 files changed, 151 insertions(+), 3 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 1217566a0ebcf..c93325efddd7d 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -146,6 +146,45 @@ struct damos_quota {
 	unsigned int min_score;
 };
 
+/**
+ * enum damos_wmark_metric - Represents the watermark metric.
+ *
+ * @DAMOS_WMARK_NONE:		Ignore the watermarks of the given scheme.
+ * @DAMOS_WMARK_FREE_MEM_RATE:	Free memory rate of the system in [0,1000].
+ */
+enum damos_wmark_metric {
+	DAMOS_WMARK_NONE,
+	DAMOS_WMARK_FREE_MEM_RATE,
+};
+
+/**
+ * struct damos_watermarks - Controls when a given scheme should be activated.
+ * @metric:	Metric for the watermarks.
+ * @interval:	Watermarks check time interval in microseconds.
+ * @high:	High watermark.
+ * @mid:	Middle watermark.
+ * @low:	Low watermark.
+ *
+ * If &metric is &DAMOS_WMARK_NONE, the scheme is always active.  Being active
+ * means DAMON does monitoring and applying the action of the scheme to
+ * appropriate memory regions.  Else, DAMON checks &metric of the system for at
+ * least every &interval microseconds and works as below.
+ *
+ * If &metric is higher than &high, the scheme is inactivated.  If &metric is
+ * between &mid and &low, the scheme is activated.  If &metric is lower than
+ * &low, the scheme is inactivated.
+ */
+struct damos_watermarks {
+	enum damos_wmark_metric metric;
+	unsigned long interval;
+	unsigned long high;
+	unsigned long mid;
+	unsigned long low;
+
+/* private: */
+	bool activated;
+};
+
 /**
  * struct damos - Represents a Data Access Monitoring-based Operation Scheme.
  * @min_sz_region:	Minimum size of target regions.
@@ -156,6 +195,7 @@ struct damos_quota {
  * @max_age_region:	Maximum age of target regions.
  * @action:		&damo_action to be applied to the target regions.
  * @quota:		Control the aggressiveness of this scheme.
+ * @wmarks:		Watermarks for automated (in)activation of this scheme.
  * @stat_count:		Total number of regions that this scheme is applied.
  * @stat_sz:		Total size of regions that this scheme is applied.
  * @list:		List head for siblings.
@@ -166,6 +206,14 @@ struct damos_quota {
  * those.  To avoid consuming too much CPU time or IO resources for the
  * &action, &quota is used.
  *
+ * To do the work only when needed, schemes can be activated for specific
+ * system situations using &wmarks.  If all schemes that registered to the
+ * monitoring context are inactive, DAMON stops monitoring either, and just
+ * repeatedly checks the watermarks.
+ *
+ * If all schemes that registered to a &struct damon_ctx are inactive, DAMON
+ * stops monitoring and just repeatedly checks the watermarks.
+ *
  * After applying the &action to each region, &stat_count and &stat_sz is
  * updated to reflect the number of regions and total size of regions that the
  * &action is applied.
@@ -179,6 +227,7 @@ struct damos {
 	unsigned int max_age_region;
 	enum damos_action action;
 	struct damos_quota quota;
+	struct damos_watermarks wmarks;
 	unsigned long stat_count;
 	unsigned long stat_sz;
 	struct list_head list;
@@ -384,7 +433,8 @@ struct damos *damon_new_scheme(
 		unsigned long min_sz_region, unsigned long max_sz_region,
 		unsigned int min_nr_accesses, unsigned int max_nr_accesses,
 		unsigned int min_age_region, unsigned int max_age_region,
-		enum damos_action action, struct damos_quota *quota);
+		enum damos_action action, struct damos_quota *quota,
+		struct damos_watermarks *wmarks);
 void damon_add_scheme(struct damon_ctx *ctx, struct damos *s);
 void damon_destroy_scheme(struct damos *s);
 
diff --git a/mm/damon/core.c b/mm/damon/core.c
index fad25778e2ecf..6993c60ae31c4 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -10,6 +10,7 @@
 #include <linux/damon.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/string.h>
@@ -90,7 +91,8 @@ struct damos *damon_new_scheme(
 		unsigned long min_sz_region, unsigned long max_sz_region,
 		unsigned int min_nr_accesses, unsigned int max_nr_accesses,
 		unsigned int min_age_region, unsigned int max_age_region,
-		enum damos_action action, struct damos_quota *quota)
+		enum damos_action action, struct damos_quota *quota,
+		struct damos_watermarks *wmarks)
 {
 	struct damos *scheme;
 
@@ -122,6 +124,13 @@ struct damos *damon_new_scheme(
 	scheme->quota.charge_target_from = NULL;
 	scheme->quota.charge_addr_from = 0;
 
+	scheme->wmarks.metric = wmarks->metric;
+	scheme->wmarks.interval = wmarks->interval;
+	scheme->wmarks.high = wmarks->high;
+	scheme->wmarks.mid = wmarks->mid;
+	scheme->wmarks.low = wmarks->low;
+	scheme->wmarks.activated = true;
+
 	return scheme;
 }
 
@@ -582,6 +591,9 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 		unsigned long sz = r->ar.end - r->ar.start;
 		struct timespec64 begin, end;
 
+		if (!s->wmarks.activated)
+			continue;
+
 		/* Check the quota */
 		if (quota->esz && quota->charged_sz >= quota->esz)
 			continue;
@@ -684,6 +696,9 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
 		unsigned long cumulated_sz;
 		unsigned int score, max_score = 0;
 
+		if (!s->wmarks.activated)
+			continue;
+
 		if (!quota->ms && !quota->sz)
 			continue;
 
@@ -924,6 +939,83 @@ static bool kdamond_need_stop(struct damon_ctx *ctx)
 	return true;
 }
 
+static unsigned long damos_wmark_metric_value(enum damos_wmark_metric metric)
+{
+	struct sysinfo i;
+
+	switch (metric) {
+	case DAMOS_WMARK_FREE_MEM_RATE:
+		si_meminfo(&i);
+		return i.freeram * 1000 / i.totalram;
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+/*
+ * Returns zero if the scheme is active.  Else, returns time to wait for next
+ * watermark check in micro-seconds.
+ */
+static unsigned long damos_wmark_wait_us(struct damos *scheme)
+{
+	unsigned long metric;
+
+	if (scheme->wmarks.metric == DAMOS_WMARK_NONE)
+		return 0;
+
+	metric = damos_wmark_metric_value(scheme->wmarks.metric);
+	/* higher than high watermark or lower than low watermark */
+	if (metric > scheme->wmarks.high || scheme->wmarks.low > metric) {
+		if (scheme->wmarks.activated)
+			pr_debug("inactivate a scheme (%d) for %s wmark\n",
+					scheme->action,
+					metric > scheme->wmarks.high ?
+					"high" : "low");
+		scheme->wmarks.activated = false;
+		return scheme->wmarks.interval;
+	}
+
+	/* inactive and higher than middle watermark */
+	if ((scheme->wmarks.high >= metric && metric >= scheme->wmarks.mid) &&
+			!scheme->wmarks.activated)
+		return scheme->wmarks.interval;
+
+	if (!scheme->wmarks.activated)
+		pr_debug("activate a scheme (%d)\n", scheme->action);
+	scheme->wmarks.activated = true;
+	return 0;
+}
+
+static void kdamond_usleep(unsigned long usecs)
+{
+	if (usecs > 100 * 1000)
+		schedule_timeout_interruptible(usecs_to_jiffies(usecs));
+	else
+		usleep_range(usecs, usecs + 1);
+}
+
+/* Returns negative error code if it's not activated but should return */
+static int kdamond_wait_activation(struct damon_ctx *ctx)
+{
+	struct damos *s;
+	unsigned long wait_time;
+	unsigned long min_wait_time = 0;
+
+	while (!kdamond_need_stop(ctx)) {
+		damon_for_each_scheme(s, ctx) {
+			wait_time = damos_wmark_wait_us(s);
+			if (!min_wait_time || wait_time < min_wait_time)
+				min_wait_time = wait_time;
+		}
+		if (!min_wait_time)
+			return 0;
+
+		kdamond_usleep(min_wait_time);
+	}
+	return -EBUSY;
+}
+
 static void set_kdamond_stop(struct damon_ctx *ctx)
 {
 	mutex_lock(&ctx->kdamond_lock);
@@ -952,6 +1044,9 @@ static int kdamond_fn(void *data)
 	sz_limit = damon_region_sz_limit(ctx);
 
 	while (!kdamond_need_stop(ctx)) {
+		if (kdamond_wait_activation(ctx))
+			continue;
+
 		if (ctx->primitive.prepare_access_checks)
 			ctx->primitive.prepare_access_checks(ctx);
 		if (ctx->callback.after_sampling &&
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 20c4feb8b918c..9f13060d10585 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -195,6 +195,9 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 	*nr_schemes = 0;
 	while (pos < len && *nr_schemes < max_nr_schemes) {
 		struct damos_quota quota = {};
+		struct damos_watermarks wmarks = {
+			.metric = DAMOS_WMARK_NONE,
+		};
 
 		ret = sscanf(&str[pos],
 				"%lu %lu %u %u %u %u %u %lu %lu %lu %u %u %u%n",
@@ -212,7 +215,7 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 
 		pos += parsed;
 		scheme = damon_new_scheme(min_sz, max_sz, min_nr_a, max_nr_a,
-				min_age, max_age, action, &quota);
+				min_age, max_age, action, &quota, &wmarks);
 		if (!scheme)
 			goto fail;
 
-- 
GitLab


From 545df688142a5740eb504fffc54602154611775e Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:50 -0700
Subject: [PATCH 4822/4878] UPSTREAM: mm/damon/dbgfs: support watermarks

This updates DAMON debugfs interface to support the watermarks based
schemes activation.  For this, now 'schemes' file receives five more
values.

Link: https://lkml.kernel.org/r/20211019150731.16699-13-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit ae666a6dddfd119da55cc1bad54f7cbd8b2ef54c)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I9b1b7c285ea04bd4dc9beefcc6a4e5368f093745
---
 mm/damon/dbgfs.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 9f13060d10585..6828e463348b0 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -105,7 +105,7 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 
 	damon_for_each_scheme(s, c) {
 		rc = scnprintf(&buf[written], len - written,
-				"%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %lu %lu\n",
+				"%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %d %lu %lu %lu %lu %lu %lu\n",
 				s->min_sz_region, s->max_sz_region,
 				s->min_nr_accesses, s->max_nr_accesses,
 				s->min_age_region, s->max_age_region,
@@ -115,6 +115,8 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 				s->quota.weight_sz,
 				s->quota.weight_nr_accesses,
 				s->quota.weight_age,
+				s->wmarks.metric, s->wmarks.interval,
+				s->wmarks.high, s->wmarks.mid, s->wmarks.low,
 				s->stat_count, s->stat_sz);
 		if (!rc)
 			return -ENOMEM;
@@ -195,18 +197,18 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 	*nr_schemes = 0;
 	while (pos < len && *nr_schemes < max_nr_schemes) {
 		struct damos_quota quota = {};
-		struct damos_watermarks wmarks = {
-			.metric = DAMOS_WMARK_NONE,
-		};
+		struct damos_watermarks wmarks;
 
 		ret = sscanf(&str[pos],
-				"%lu %lu %u %u %u %u %u %lu %lu %lu %u %u %u%n",
+				"%lu %lu %u %u %u %u %u %lu %lu %lu %u %u %u %u %lu %lu %lu %lu%n",
 				&min_sz, &max_sz, &min_nr_a, &max_nr_a,
 				&min_age, &max_age, &action, &quota.ms,
 				&quota.sz, &quota.reset_interval,
 				&quota.weight_sz, &quota.weight_nr_accesses,
-				&quota.weight_age, &parsed);
-		if (ret != 13)
+				&quota.weight_age, &wmarks.metric,
+				&wmarks.interval, &wmarks.high, &wmarks.mid,
+				&wmarks.low, &parsed);
+		if (ret != 18)
 			break;
 		if (!damos_action_valid(action)) {
 			pr_err("wrong action %d\n", action);
-- 
GitLab


From 656bbf4bded75b794670fb03f5b79993a27662e6 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:54 -0700
Subject: [PATCH 4823/4878] UPSTREAM: selftests/damon: support watermarks

This updates DAMON selftests for 'schemes' debugfs file to reflect the
changes in the format.

Link: https://lkml.kernel.org/r/20211019150731.16699-14-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 1dc90ccd15c55cc3edec508466db9248a841acad)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ic66b3aa8db37ba276624d80278ca8e35f2c07963
---
 tools/testing/selftests/damon/debugfs_attrs.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
index 466dbeb37e31e..196b6640bf378 100644
--- a/tools/testing/selftests/damon/debugfs_attrs.sh
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -63,10 +63,10 @@ echo "$orig_content" > "$file"
 file="$DBGFS/schemes"
 orig_content=$(cat "$file")
 
-test_write_succ "$file" "1 2 3 4 5 6 4 0 0 0 1 2 3" \
+test_write_succ "$file" "1 2 3 4 5 6 4 0 0 0 1 2 3 1 100 3 2 1" \
 	"$orig_content" "valid input"
 test_write_fail "$file" "1 2
-3 4 5 6 3 0 0 0 1 2 3" "$orig_content" "multi lines"
+3 4 5 6 3 0 0 0 1 2 3 1 100 3 2 1" "$orig_content" "multi lines"
 test_write_succ "$file" "" "$orig_content" "disabling"
 echo "$orig_content" > "$file"
 
-- 
GitLab


From b3b73183327cd9a01778e873a04e25d1da23322d Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 5 Nov 2021 13:47:57 -0700
Subject: [PATCH 4824/4878] UPSTREAM: mm/damon: introduce DAMON-based
 Reclamation (DAMON_RECLAIM)

This implements a new kernel subsystem that finds cold memory regions
using DAMON and reclaims those immediately.  It is intended to be used
as proactive lightweigh reclamation logic for light memory pressure.
For heavy memory pressure, it could be inactivated and fall back to the
traditional page-scanning based reclamation.

It's implemented on top of DAMON framework to use the DAMON-based
Operation Schemes (DAMOS) feature.  It utilizes all the DAMOS features
including speed limit, prioritization, and watermarks.

It could be enabled and tuned in boot time via the kernel boot
parameter, and in run time via its module parameters
('/sys/module/damon_reclaim/parameters/') interface.

[yangyingliang@huawei.com: fix error return code in damon_reclaim_turn()]
  Link: https://lkml.kernel.org/r/20211025124500.2758060-1-yangyingliang@huawei.com

Link: https://lkml.kernel.org/r/20211019150731.16699-15-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: David Woodhouse <dwmw@amazon.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leonard Foerster <foersleo@amazon.de>
Cc: Marco Elver <elver@google.com>
Cc: Markus Boehme <markubo@amazon.de>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 43b0536cb4710e7bb591edfda7e68a1c327a3409)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Id57795ee37e5db046f782d2bffcd0533fe476558
---
 mm/damon/Kconfig   |  12 ++
 mm/damon/Makefile  |   1 +
 mm/damon/reclaim.c | 356 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 369 insertions(+)
 create mode 100644 mm/damon/reclaim.c

diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index ca33b289ebbe4..5bcf05851ad07 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -73,4 +73,16 @@ config DAMON_DBGFS_KUNIT_TEST
 
 	  If unsure, say N.
 
+config DAMON_RECLAIM
+	bool "Build DAMON-based reclaim (DAMON_RECLAIM)"
+	depends on DAMON_PADDR
+	help
+	  This builds the DAMON-based reclamation subsystem.  It finds pages
+	  that not accessed for a long time (cold) using DAMON and reclaim
+	  those.
+
+	  This is suggested to be used as a proactive and lightweight
+	  reclamation under light memory pressure, while the traditional page
+	  scanning-based reclamation is used for heavy pressure.
+
 endmenu
diff --git a/mm/damon/Makefile b/mm/damon/Makefile
index 8d9b0df797029..f7d5ac377a2bb 100644
--- a/mm/damon/Makefile
+++ b/mm/damon/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_DAMON)		:= core.o
 obj-$(CONFIG_DAMON_VADDR)	+= prmtv-common.o vaddr.o
 obj-$(CONFIG_DAMON_PADDR)	+= prmtv-common.o paddr.o
 obj-$(CONFIG_DAMON_DBGFS)	+= dbgfs.o
+obj-$(CONFIG_DAMON_RECLAIM)	+= reclaim.o
diff --git a/mm/damon/reclaim.c b/mm/damon/reclaim.c
new file mode 100644
index 0000000000000..dc1485044eaf7
--- /dev/null
+++ b/mm/damon/reclaim.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * DAMON-based page reclamation
+ *
+ * Author: SeongJae Park <sj@kernel.org>
+ */
+
+#define pr_fmt(fmt) "damon-reclaim: " fmt
+
+#include <linux/damon.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+
+#ifdef MODULE_PARAM_PREFIX
+#undef MODULE_PARAM_PREFIX
+#endif
+#define MODULE_PARAM_PREFIX "damon_reclaim."
+
+/*
+ * Enable or disable DAMON_RECLAIM.
+ *
+ * You can enable DAMON_RCLAIM by setting the value of this parameter as ``Y``.
+ * Setting it as ``N`` disables DAMON_RECLAIM.  Note that DAMON_RECLAIM could
+ * do no real monitoring and reclamation due to the watermarks-based activation
+ * condition.  Refer to below descriptions for the watermarks parameter for
+ * this.
+ */
+static bool enabled __read_mostly;
+module_param(enabled, bool, 0600);
+
+/*
+ * Time threshold for cold memory regions identification in microseconds.
+ *
+ * If a memory region is not accessed for this or longer time, DAMON_RECLAIM
+ * identifies the region as cold, and reclaims.  120 seconds by default.
+ */
+static unsigned long min_age __read_mostly = 120000000;
+module_param(min_age, ulong, 0600);
+
+/*
+ * Limit of time for trying the reclamation in milliseconds.
+ *
+ * DAMON_RECLAIM tries to use only up to this time within a time window
+ * (quota_reset_interval_ms) for trying reclamation of cold pages.  This can be
+ * used for limiting CPU consumption of DAMON_RECLAIM.  If the value is zero,
+ * the limit is disabled.
+ *
+ * 10 ms by default.
+ */
+static unsigned long quota_ms __read_mostly = 10;
+module_param(quota_ms, ulong, 0600);
+
+/*
+ * Limit of size of memory for the reclamation in bytes.
+ *
+ * DAMON_RECLAIM charges amount of memory which it tried to reclaim within a
+ * time window (quota_reset_interval_ms) and makes no more than this limit is
+ * tried.  This can be used for limiting consumption of CPU and IO.  If this
+ * value is zero, the limit is disabled.
+ *
+ * 128 MiB by default.
+ */
+static unsigned long quota_sz __read_mostly = 128 * 1024 * 1024;
+module_param(quota_sz, ulong, 0600);
+
+/*
+ * The time/size quota charge reset interval in milliseconds.
+ *
+ * The charge reset interval for the quota of time (quota_ms) and size
+ * (quota_sz).  That is, DAMON_RECLAIM does not try reclamation for more than
+ * quota_ms milliseconds or quota_sz bytes within quota_reset_interval_ms
+ * milliseconds.
+ *
+ * 1 second by default.
+ */
+static unsigned long quota_reset_interval_ms __read_mostly = 1000;
+module_param(quota_reset_interval_ms, ulong, 0600);
+
+/*
+ * The watermarks check time interval in microseconds.
+ *
+ * Minimal time to wait before checking the watermarks, when DAMON_RECLAIM is
+ * enabled but inactive due to its watermarks rule.  5 seconds by default.
+ */
+static unsigned long wmarks_interval __read_mostly = 5000000;
+module_param(wmarks_interval, ulong, 0600);
+
+/*
+ * Free memory rate (per thousand) for the high watermark.
+ *
+ * If free memory of the system in bytes per thousand bytes is higher than
+ * this, DAMON_RECLAIM becomes inactive, so it does nothing but periodically
+ * checks the watermarks.  500 (50%) by default.
+ */
+static unsigned long wmarks_high __read_mostly = 500;
+module_param(wmarks_high, ulong, 0600);
+
+/*
+ * Free memory rate (per thousand) for the middle watermark.
+ *
+ * If free memory of the system in bytes per thousand bytes is between this and
+ * the low watermark, DAMON_RECLAIM becomes active, so starts the monitoring
+ * and the reclaiming.  400 (40%) by default.
+ */
+static unsigned long wmarks_mid __read_mostly = 400;
+module_param(wmarks_mid, ulong, 0600);
+
+/*
+ * Free memory rate (per thousand) for the low watermark.
+ *
+ * If free memory of the system in bytes per thousand bytes is lower than this,
+ * DAMON_RECLAIM becomes inactive, so it does nothing but periodically checks
+ * the watermarks.  In the case, the system falls back to the LRU-based page
+ * granularity reclamation logic.  200 (20%) by default.
+ */
+static unsigned long wmarks_low __read_mostly = 200;
+module_param(wmarks_low, ulong, 0600);
+
+/*
+ * Sampling interval for the monitoring in microseconds.
+ *
+ * The sampling interval of DAMON for the cold memory monitoring.  Please refer
+ * to the DAMON documentation for more detail.  5 ms by default.
+ */
+static unsigned long sample_interval __read_mostly = 5000;
+module_param(sample_interval, ulong, 0600);
+
+/*
+ * Aggregation interval for the monitoring in microseconds.
+ *
+ * The aggregation interval of DAMON for the cold memory monitoring.  Please
+ * refer to the DAMON documentation for more detail.  100 ms by default.
+ */
+static unsigned long aggr_interval __read_mostly = 100000;
+module_param(aggr_interval, ulong, 0600);
+
+/*
+ * Minimum number of monitoring regions.
+ *
+ * The minimal number of monitoring regions of DAMON for the cold memory
+ * monitoring.  This can be used to set lower-bound of the monitoring quality.
+ * But, setting this too high could result in increased monitoring overhead.
+ * Please refer to the DAMON documentation for more detail.  10 by default.
+ */
+static unsigned long min_nr_regions __read_mostly = 10;
+module_param(min_nr_regions, ulong, 0600);
+
+/*
+ * Maximum number of monitoring regions.
+ *
+ * The maximum number of monitoring regions of DAMON for the cold memory
+ * monitoring.  This can be used to set upper-bound of the monitoring overhead.
+ * However, setting this too low could result in bad monitoring quality.
+ * Please refer to the DAMON documentation for more detail.  1000 by default.
+ */
+static unsigned long max_nr_regions __read_mostly = 1000;
+module_param(max_nr_regions, ulong, 0600);
+
+/*
+ * Start of the target memory region in physical address.
+ *
+ * The start physical address of memory region that DAMON_RECLAIM will do work
+ * against.  By default, biggest System RAM is used as the region.
+ */
+static unsigned long monitor_region_start __read_mostly;
+module_param(monitor_region_start, ulong, 0600);
+
+/*
+ * End of the target memory region in physical address.
+ *
+ * The end physical address of memory region that DAMON_RECLAIM will do work
+ * against.  By default, biggest System RAM is used as the region.
+ */
+static unsigned long monitor_region_end __read_mostly;
+module_param(monitor_region_end, ulong, 0600);
+
+/*
+ * PID of the DAMON thread
+ *
+ * If DAMON_RECLAIM is enabled, this becomes the PID of the worker thread.
+ * Else, -1.
+ */
+static int kdamond_pid __read_mostly = -1;
+module_param(kdamond_pid, int, 0400);
+
+static struct damon_ctx *ctx;
+static struct damon_target *target;
+
+struct damon_reclaim_ram_walk_arg {
+	unsigned long start;
+	unsigned long end;
+};
+
+static int walk_system_ram(struct resource *res, void *arg)
+{
+	struct damon_reclaim_ram_walk_arg *a = arg;
+
+	if (a->end - a->start < res->end - res->start) {
+		a->start = res->start;
+		a->end = res->end;
+	}
+	return 0;
+}
+
+/*
+ * Find biggest 'System RAM' resource and store its start and end address in
+ * @start and @end, respectively.  If no System RAM is found, returns false.
+ */
+static bool get_monitoring_region(unsigned long *start, unsigned long *end)
+{
+	struct damon_reclaim_ram_walk_arg arg = {};
+
+	walk_system_ram_res(0, ULONG_MAX, &arg, walk_system_ram);
+	if (arg.end <= arg.start)
+		return false;
+
+	*start = arg.start;
+	*end = arg.end;
+	return true;
+}
+
+static struct damos *damon_reclaim_new_scheme(void)
+{
+	struct damos_watermarks wmarks = {
+		.metric = DAMOS_WMARK_FREE_MEM_RATE,
+		.interval = wmarks_interval,
+		.high = wmarks_high,
+		.mid = wmarks_mid,
+		.low = wmarks_low,
+	};
+	struct damos_quota quota = {
+		/*
+		 * Do not try reclamation for more than quota_ms milliseconds
+		 * or quota_sz bytes within quota_reset_interval_ms.
+		 */
+		.ms = quota_ms,
+		.sz = quota_sz,
+		.reset_interval = quota_reset_interval_ms,
+		/* Within the quota, page out older regions first. */
+		.weight_sz = 0,
+		.weight_nr_accesses = 0,
+		.weight_age = 1
+	};
+	struct damos *scheme = damon_new_scheme(
+			/* Find regions having PAGE_SIZE or larger size */
+			PAGE_SIZE, ULONG_MAX,
+			/* and not accessed at all */
+			0, 0,
+			/* for min_age or more micro-seconds, and */
+			min_age / aggr_interval, UINT_MAX,
+			/* page out those, as soon as found */
+			DAMOS_PAGEOUT,
+			/* under the quota. */
+			&quota,
+			/* (De)activate this according to the watermarks. */
+			&wmarks);
+
+	return scheme;
+}
+
+static int damon_reclaim_turn(bool on)
+{
+	struct damon_region *region;
+	struct damos *scheme;
+	int err;
+
+	if (!on) {
+		err = damon_stop(&ctx, 1);
+		if (!err)
+			kdamond_pid = -1;
+		return err;
+	}
+
+	err = damon_set_attrs(ctx, sample_interval, aggr_interval, 0,
+			min_nr_regions, max_nr_regions);
+	if (err)
+		return err;
+
+	if (monitor_region_start > monitor_region_end)
+		return -EINVAL;
+	if (!monitor_region_start && !monitor_region_end &&
+			!get_monitoring_region(&monitor_region_start,
+				&monitor_region_end))
+		return -EINVAL;
+	/* DAMON will free this on its own when finish monitoring */
+	region = damon_new_region(monitor_region_start, monitor_region_end);
+	if (!region)
+		return -ENOMEM;
+	damon_add_region(region, target);
+
+	/* Will be freed by 'damon_set_schemes()' below */
+	scheme = damon_reclaim_new_scheme();
+	if (!scheme) {
+		err = -ENOMEM;
+		goto free_region_out;
+	}
+	err = damon_set_schemes(ctx, &scheme, 1);
+	if (err)
+		goto free_scheme_out;
+
+	err = damon_start(&ctx, 1);
+	if (!err) {
+		kdamond_pid = ctx->kdamond->pid;
+		return 0;
+	}
+
+free_scheme_out:
+	damon_destroy_scheme(scheme);
+free_region_out:
+	damon_destroy_region(region, target);
+	return err;
+}
+
+#define ENABLE_CHECK_INTERVAL_MS	1000
+static struct delayed_work damon_reclaim_timer;
+static void damon_reclaim_timer_fn(struct work_struct *work)
+{
+	static bool last_enabled;
+	bool now_enabled;
+
+	now_enabled = enabled;
+	if (last_enabled != now_enabled) {
+		if (!damon_reclaim_turn(now_enabled))
+			last_enabled = now_enabled;
+		else
+			enabled = last_enabled;
+	}
+
+	schedule_delayed_work(&damon_reclaim_timer,
+			msecs_to_jiffies(ENABLE_CHECK_INTERVAL_MS));
+}
+static DECLARE_DELAYED_WORK(damon_reclaim_timer, damon_reclaim_timer_fn);
+
+static int __init damon_reclaim_init(void)
+{
+	ctx = damon_new_ctx();
+	if (!ctx)
+		return -ENOMEM;
+
+	damon_pa_set_primitives(ctx);
+
+	/* 4242 means nothing but fun */
+	target = damon_new_target(4242);
+	if (!target) {
+		damon_destroy_ctx(ctx);
+		return -ENOMEM;
+	}
+	damon_add_target(ctx, target);
+
+	schedule_delayed_work(&damon_reclaim_timer, 0);
+	return 0;
+}
+
+module_init(damon_reclaim_init);
-- 
GitLab


From 2aafd45856f001f6061bc043bfd479119f2c8dba Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 5 Nov 2021 13:48:04 -0700
Subject: [PATCH 4825/4878] UPSTREAM: mm/damon: remove unnecessary variable
 initialization

Patch series "mm/damon: Fix some small bugs", v4.

This patch (of 2):

In 'damon_va_apply_three_regions' there is no need to set variable 'i'
to zero.

Link: https://lkml.kernel.org/r/b7df8d3dad0943a37e01f60c441b1968b2b20354.1634720326.git.xhao@linux.alibaba.com
Link: https://lkml.kernel.org/r/cover.1634720326.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit a460a36034bad4403c2c62e04a521bc6987ae5db)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I81c05842e2372f3ab7a3d74df5358fbfb1c96342
---
 mm/damon/vaddr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 675cd8c7df9b8..35fe49080ee99 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -306,7 +306,7 @@ static void damon_va_apply_three_regions(struct damon_target *t,
 		struct damon_addr_range bregions[3])
 {
 	struct damon_region *r, *next;
-	unsigned int i = 0;
+	unsigned int i;
 
 	/* Remove regions which are not in the three big regions now */
 	damon_for_each_region_safe(r, next, t) {
-- 
GitLab


From c8f09592281d18ab54803cb36e83d47e05addfbb Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 5 Nov 2021 13:48:07 -0700
Subject: [PATCH 4826/4878] UPSTREAM: mm/damon/dbgfs: add adaptive_targets list
 check before enable monitor_on

When the ctx->adaptive_targets list is empty, I did some test on
monitor_on interface like this.

    # cat /sys/kernel/debug/damon/target_ids
    #
    # echo on > /sys/kernel/debug/damon/monitor_on
    # damon: kdamond (5390) starts

Though the ctx->adaptive_targets list is empty, but the kthread_run
still be called, and the kdamond.x thread still be created, this is
meaningless.

So there adds a judgment in 'dbgfs_monitor_on_write', if the
ctx->adaptive_targets list is empty, return -EINVAL.

Link: https://lkml.kernel.org/r/0a60a6e8ec9d71989e0848a4dc3311996ca3b5d4.1634720326.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit b5ca3e83ddb05342b1b30700b999cb9b107511f6)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I768592c5fded26ead98ba94a46d43fd64118f589
---
 include/linux/damon.h |  1 +
 mm/damon/core.c       |  5 +++++
 mm/damon/dbgfs.c      | 15 ++++++++++++---
 3 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index c93325efddd7d..fa7f32614b65e 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -440,6 +440,7 @@ void damon_destroy_scheme(struct damos *s);
 
 struct damon_target *damon_new_target(unsigned long id);
 void damon_add_target(struct damon_ctx *ctx, struct damon_target *t);
+bool damon_targets_empty(struct damon_ctx *ctx);
 void damon_free_target(struct damon_target *t);
 void damon_destroy_target(struct damon_target *t);
 unsigned int damon_nr_regions(struct damon_target *t);
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 6993c60ae31c4..46a6afea3030c 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -180,6 +180,11 @@ void damon_add_target(struct damon_ctx *ctx, struct damon_target *t)
 	list_add_tail(&t->list, &ctx->adaptive_targets);
 }
 
+bool damon_targets_empty(struct damon_ctx *ctx)
+{
+	return list_empty(&ctx->adaptive_targets);
+}
+
 static void damon_del_target(struct damon_target *t)
 {
 	list_del(&t->list);
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 6828e463348b0..befb27a29aabd 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -878,12 +878,21 @@ static ssize_t dbgfs_monitor_on_write(struct file *file,
 		return -EINVAL;
 	}
 
-	if (!strncmp(kbuf, "on", count))
+	if (!strncmp(kbuf, "on", count)) {
+		int i;
+
+		for (i = 0; i < dbgfs_nr_ctxs; i++) {
+			if (damon_targets_empty(dbgfs_ctxs[i])) {
+				kfree(kbuf);
+				return -EINVAL;
+			}
+		}
 		ret = damon_start(dbgfs_ctxs, dbgfs_nr_ctxs);
-	else if (!strncmp(kbuf, "off", count))
+	} else if (!strncmp(kbuf, "off", count)) {
 		ret = damon_stop(dbgfs_ctxs, dbgfs_nr_ctxs);
-	else
+	} else {
 		ret = -EINVAL;
+	}
 
 	if (!ret)
 		ret = count;
-- 
GitLab


From 8d31217aa05d17c93017016a9b0004518558cb33 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Fri, 5 Nov 2021 13:48:22 -0700
Subject: [PATCH 4827/4878] UPSTREAM: mm/damon: simplify stop mechanism

A kernel thread can exit gracefully with kthread_stop().  So we don't
need a new flag 'kdamond_stop'.  And to make sure the task struct is not
freed when accessing it, get reference to it before termination.

Link: https://lkml.kernel.org/r/20211027130517.4404-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 0f91d13366a402420bf98eaaf393db03946c13e0)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I7b959fc6cd114dc244c895cf19b9fd864b81cd12
---
 include/linux/damon.h |  1 -
 mm/damon/core.c       | 51 +++++++++++++------------------------------
 2 files changed, 15 insertions(+), 37 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index fa7f32614b65e..321de9d723600 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -381,7 +381,6 @@ struct damon_ctx {
 
 /* public: */
 	struct task_struct *kdamond;
-	bool kdamond_stop;
 	struct mutex kdamond_lock;
 
 	struct damon_primitive primitive;
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 46a6afea3030c..f37c17b538148 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -390,17 +390,6 @@ static unsigned long damon_region_sz_limit(struct damon_ctx *ctx)
 	return sz;
 }
 
-static bool damon_kdamond_running(struct damon_ctx *ctx)
-{
-	bool running;
-
-	mutex_lock(&ctx->kdamond_lock);
-	running = ctx->kdamond != NULL;
-	mutex_unlock(&ctx->kdamond_lock);
-
-	return running;
-}
-
 static int kdamond_fn(void *data);
 
 /*
@@ -418,7 +407,6 @@ static int __damon_start(struct damon_ctx *ctx)
 	mutex_lock(&ctx->kdamond_lock);
 	if (!ctx->kdamond) {
 		err = 0;
-		ctx->kdamond_stop = false;
 		ctx->kdamond = kthread_run(kdamond_fn, ctx, "kdamond.%d",
 				nr_running_ctxs);
 		if (IS_ERR(ctx->kdamond)) {
@@ -474,13 +462,15 @@ int damon_start(struct damon_ctx **ctxs, int nr_ctxs)
  */
 static int __damon_stop(struct damon_ctx *ctx)
 {
+	struct task_struct *tsk;
+
 	mutex_lock(&ctx->kdamond_lock);
-	if (ctx->kdamond) {
-		ctx->kdamond_stop = true;
+	tsk = ctx->kdamond;
+	if (tsk) {
+		get_task_struct(tsk);
 		mutex_unlock(&ctx->kdamond_lock);
-		while (damon_kdamond_running(ctx))
-			usleep_range(ctx->sample_interval,
-					ctx->sample_interval * 2);
+		kthread_stop(tsk);
+		put_task_struct(tsk);
 		return 0;
 	}
 	mutex_unlock(&ctx->kdamond_lock);
@@ -925,12 +915,8 @@ static bool kdamond_need_update_primitive(struct damon_ctx *ctx)
 static bool kdamond_need_stop(struct damon_ctx *ctx)
 {
 	struct damon_target *t;
-	bool stop;
 
-	mutex_lock(&ctx->kdamond_lock);
-	stop = ctx->kdamond_stop;
-	mutex_unlock(&ctx->kdamond_lock);
-	if (stop)
+	if (kthread_should_stop())
 		return true;
 
 	if (!ctx->primitive.target_valid)
@@ -1021,13 +1007,6 @@ static int kdamond_wait_activation(struct damon_ctx *ctx)
 	return -EBUSY;
 }
 
-static void set_kdamond_stop(struct damon_ctx *ctx)
-{
-	mutex_lock(&ctx->kdamond_lock);
-	ctx->kdamond_stop = true;
-	mutex_unlock(&ctx->kdamond_lock);
-}
-
 /*
  * The monitoring daemon that runs as a kernel thread
  */
@@ -1038,17 +1017,18 @@ static int kdamond_fn(void *data)
 	struct damon_region *r, *next;
 	unsigned int max_nr_accesses = 0;
 	unsigned long sz_limit = 0;
+	bool done = false;
 
 	pr_debug("kdamond (%d) starts\n", current->pid);
 
 	if (ctx->primitive.init)
 		ctx->primitive.init(ctx);
 	if (ctx->callback.before_start && ctx->callback.before_start(ctx))
-		set_kdamond_stop(ctx);
+		done = true;
 
 	sz_limit = damon_region_sz_limit(ctx);
 
-	while (!kdamond_need_stop(ctx)) {
+	while (!kdamond_need_stop(ctx) && !done) {
 		if (kdamond_wait_activation(ctx))
 			continue;
 
@@ -1056,7 +1036,7 @@ static int kdamond_fn(void *data)
 			ctx->primitive.prepare_access_checks(ctx);
 		if (ctx->callback.after_sampling &&
 				ctx->callback.after_sampling(ctx))
-			set_kdamond_stop(ctx);
+			done = true;
 
 		usleep_range(ctx->sample_interval, ctx->sample_interval + 1);
 
@@ -1069,7 +1049,7 @@ static int kdamond_fn(void *data)
 					sz_limit);
 			if (ctx->callback.after_aggregation &&
 					ctx->callback.after_aggregation(ctx))
-				set_kdamond_stop(ctx);
+				done = true;
 			kdamond_apply_schemes(ctx);
 			kdamond_reset_aggregated(ctx);
 			kdamond_split_regions(ctx);
@@ -1088,9 +1068,8 @@ static int kdamond_fn(void *data)
 			damon_destroy_region(r, t);
 	}
 
-	if (ctx->callback.before_terminate &&
-			ctx->callback.before_terminate(ctx))
-		set_kdamond_stop(ctx);
+	if (ctx->callback.before_terminate)
+		ctx->callback.before_terminate(ctx);
 	if (ctx->primitive.cleanup)
 		ctx->primitive.cleanup(ctx);
 
-- 
GitLab


From c8aa05a582bd743f58862671444115ab228b6344 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.i.king@googlemail.com>
Date: Fri, 5 Nov 2021 13:48:24 -0700
Subject: [PATCH 4828/4878] UPSTREAM: mm/damon: fix a few spelling mistakes in
 comments and a pr_debug message

There are a few spelling mistakes in the code.  Fix these.

Link: https://lkml.kernel.org/r/20211028184157.614544-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 0107865541961ee128149c9873996d32143a74d0)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I09c9421b1abeed6c002cf5fef07d229cf0f22ebd
---
 mm/damon/core.c       | 2 +-
 mm/damon/dbgfs-test.h | 2 +-
 mm/damon/vaddr-test.h | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index f37c17b538148..c381b3c525d0b 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -959,7 +959,7 @@ static unsigned long damos_wmark_wait_us(struct damos *scheme)
 	/* higher than high watermark or lower than low watermark */
 	if (metric > scheme->wmarks.high || scheme->wmarks.low > metric) {
 		if (scheme->wmarks.activated)
-			pr_debug("inactivate a scheme (%d) for %s wmark\n",
+			pr_debug("deactivate a scheme (%d) for %s wmark\n",
 					scheme->action,
 					metric > scheme->wmarks.high ?
 					"high" : "low");
diff --git a/mm/damon/dbgfs-test.h b/mm/damon/dbgfs-test.h
index 104b22957616b..86b9f9528231e 100644
--- a/mm/damon/dbgfs-test.h
+++ b/mm/damon/dbgfs-test.h
@@ -145,7 +145,7 @@ static void damon_dbgfs_test_set_init_regions(struct kunit *test)
 
 		KUNIT_EXPECT_STREQ(test, (char *)buf, expect);
 	}
-	/* Put invlid inputs and check the return error code */
+	/* Put invalid inputs and check the return error code */
 	for (i = 0; i < ARRAY_SIZE(invalid_inputs); i++) {
 		input = invalid_inputs[i];
 		pr_info("input: %s\n", input);
diff --git a/mm/damon/vaddr-test.h b/mm/damon/vaddr-test.h
index 1f5c13257dbaf..ecfd0b2ed222d 100644
--- a/mm/damon/vaddr-test.h
+++ b/mm/damon/vaddr-test.h
@@ -233,7 +233,7 @@ static void damon_test_apply_three_regions3(struct kunit *test)
  * and 70-100) has totally freed and mapped to different area (30-32 and
  * 65-68).  The target regions which were in the old second and third big
  * regions should now be removed and new target regions covering the new second
- * and third big regions should be crated.
+ * and third big regions should be created.
  */
 static void damon_test_apply_three_regions4(struct kunit *test)
 {
-- 
GitLab


From 90ba2d5488ede1739fa3ce644828115a90e125b8 Mon Sep 17 00:00:00 2001
From: Changbin Du <changbin.du@gmail.com>
Date: Fri, 5 Nov 2021 13:48:27 -0700
Subject: [PATCH 4829/4878] UPSTREAM: mm/damon: remove return value from
 before_terminate callback

Since the return value of 'before_terminate' callback is never used, we
make it have no return value.

Link: https://lkml.kernel.org/r/20211029005023.8895-1-changbin.du@gmail.com
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 658f9ae761b5965893727dd4edcdad56e5a439bb)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ida44623827a7a667118a2af329f6e58a57941fc9
---
 include/linux/damon.h | 2 +-
 mm/damon/dbgfs.c      | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 321de9d723600..b4d4be3cc987f 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -322,7 +322,7 @@ struct damon_callback {
 	int (*before_start)(struct damon_ctx *context);
 	int (*after_sampling)(struct damon_ctx *context);
 	int (*after_aggregation)(struct damon_ctx *context);
-	int (*before_terminate)(struct damon_ctx *context);
+	void (*before_terminate)(struct damon_ctx *context);
 };
 
 /**
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index befb27a29aabd..eccc14b349013 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -645,18 +645,17 @@ static void dbgfs_fill_ctx_dir(struct dentry *dir, struct damon_ctx *ctx)
 		debugfs_create_file(file_names[i], 0600, dir, ctx, fops[i]);
 }
 
-static int dbgfs_before_terminate(struct damon_ctx *ctx)
+static void dbgfs_before_terminate(struct damon_ctx *ctx)
 {
 	struct damon_target *t, *next;
 
 	if (!targetid_is_pid(ctx))
-		return 0;
+		return;
 
 	damon_for_each_target_safe(t, next, ctx) {
 		put_pid((struct pid *)t->id);
 		damon_destroy_target(t);
 	}
-	return 0;
 }
 
 static struct damon_ctx *dbgfs_new_ctx(void)
-- 
GitLab


From 48bd7c89638d9fa806db30b5237bd3fa3d3510f8 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 19 Nov 2021 16:43:49 -0800
Subject: [PATCH 4830/4878] UPSTREAM: mm/damon/dbgfs: use '__GFP_NOWARN' for
 user-specified size buffer allocation

Patch series "DAMON fixes".

This patch (of 2):

DAMON users can trigger below warning in '__alloc_pages()' by invoking
write() to some DAMON debugfs files with arbitrarily high count
argument, because DAMON debugfs interface allocates some buffers based
on the user-specified 'count'.

        if (unlikely(order >= MAX_ORDER)) {
                WARN_ON_ONCE(!(gfp & __GFP_NOWARN));
                return NULL;
        }

Because the DAMON debugfs interface code checks failure of the
'kmalloc()', this commit simply suppresses the warnings by adding
'__GFP_NOWARN' flag.

Link: https://lkml.kernel.org/r/20211110145758.16558-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211110145758.16558-2-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit db7a347b26fe05d2e8c115bb24dfd908d0252bc3)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ie04cc634d998260e5791b4daa4215b83a6af9071
---
 mm/damon/dbgfs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index eccc14b349013..8ce1311ac5338 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -32,7 +32,7 @@ static char *user_input_str(const char __user *buf, size_t count, loff_t *ppos)
 	if (*ppos)
 		return ERR_PTR(-EINVAL);
 
-	kbuf = kmalloc(count + 1, GFP_KERNEL);
+	kbuf = kmalloc(count + 1, GFP_KERNEL | __GFP_NOWARN);
 	if (!kbuf)
 		return ERR_PTR(-ENOMEM);
 
@@ -133,7 +133,7 @@ static ssize_t dbgfs_schemes_read(struct file *file, char __user *buf,
 	char *kbuf;
 	ssize_t len;
 
-	kbuf = kmalloc(count, GFP_KERNEL);
+	kbuf = kmalloc(count, GFP_KERNEL | __GFP_NOWARN);
 	if (!kbuf)
 		return -ENOMEM;
 
@@ -452,7 +452,7 @@ static ssize_t dbgfs_init_regions_read(struct file *file, char __user *buf,
 	char *kbuf;
 	ssize_t len;
 
-	kbuf = kmalloc(count, GFP_KERNEL);
+	kbuf = kmalloc(count, GFP_KERNEL | __GFP_NOWARN);
 	if (!kbuf)
 		return -ENOMEM;
 
@@ -578,7 +578,7 @@ static ssize_t dbgfs_kdamond_pid_read(struct file *file,
 	char *kbuf;
 	ssize_t len;
 
-	kbuf = kmalloc(count, GFP_KERNEL);
+	kbuf = kmalloc(count, GFP_KERNEL | __GFP_NOWARN);
 	if (!kbuf)
 		return -ENOMEM;
 
-- 
GitLab


From 4c721a7b6e42364b362118aeeecf2aea253a5da7 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 19 Nov 2021 16:43:52 -0800
Subject: [PATCH 4831/4878] UPSTREAM: mm/damon/dbgfs: fix missed use of
 damon_dbgfs_lock

DAMON debugfs is supposed to protect dbgfs_ctxs, dbgfs_nr_ctxs, and
dbgfs_dirs using damon_dbgfs_lock.  However, some of the code is
accessing the variables without the protection.  This fixes it by
protecting all such accesses.

Link: https://lkml.kernel.org/r/20211110145758.16558-3-sj@kernel.org
Fixes: 75c1c2b53c78 ("mm/damon/dbgfs: support multiple contexts")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit d78f3853f831eee46c6dbe726debf3be9e9c0d05)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ibdfcc75f9f219b69a4b4e6161af257c1d0eba891
---
 mm/damon/dbgfs.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 8ce1311ac5338..9b520bb4a3e70 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -877,12 +877,14 @@ static ssize_t dbgfs_monitor_on_write(struct file *file,
 		return -EINVAL;
 	}
 
+	mutex_lock(&damon_dbgfs_lock);
 	if (!strncmp(kbuf, "on", count)) {
 		int i;
 
 		for (i = 0; i < dbgfs_nr_ctxs; i++) {
 			if (damon_targets_empty(dbgfs_ctxs[i])) {
 				kfree(kbuf);
+				mutex_unlock(&damon_dbgfs_lock);
 				return -EINVAL;
 			}
 		}
@@ -892,6 +894,7 @@ static ssize_t dbgfs_monitor_on_write(struct file *file,
 	} else {
 		ret = -EINVAL;
 	}
+	mutex_unlock(&damon_dbgfs_lock);
 
 	if (!ret)
 		ret = count;
@@ -944,15 +947,16 @@ static int __init __damon_dbgfs_init(void)
 
 static int __init damon_dbgfs_init(void)
 {
-	int rc;
+	int rc = -ENOMEM;
 
+	mutex_lock(&damon_dbgfs_lock);
 	dbgfs_ctxs = kmalloc(sizeof(*dbgfs_ctxs), GFP_KERNEL);
 	if (!dbgfs_ctxs)
-		return -ENOMEM;
+		goto out;
 	dbgfs_ctxs[0] = dbgfs_new_ctx();
 	if (!dbgfs_ctxs[0]) {
 		kfree(dbgfs_ctxs);
-		return -ENOMEM;
+		goto out;
 	}
 	dbgfs_nr_ctxs = 1;
 
@@ -963,6 +967,8 @@ static int __init damon_dbgfs_init(void)
 		pr_err("%s: dbgfs init failed\n", __func__);
 	}
 
+out:
+	mutex_unlock(&damon_dbgfs_lock);
 	return rc;
 }
 
-- 
GitLab


From 856b276105bb4e14122ba2ac5089e089fba62559 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:22 -0800
Subject: [PATCH 4832/4878] BACKPORT: timers: implement usleep_idle_range()

Patch series "mm/damon: Fix fake /proc/loadavg reports", v3.

This patchset fixes DAMON's fake load report issue.  The first patch
makes yet another variant of usleep_range() for this fix, and the second
patch fixes the issue of DAMON by making it using the newly introduced
function.

This patch (of 2):

Some kernel threads such as DAMON could need to repeatedly sleep in
micro seconds level.  Because usleep_range() sleeps in uninterruptible
state, however, such threads would make /proc/loadavg reports fake load.

To help such cases, this commit implements a variant of usleep_range()
called usleep_idle_range().  It is same to usleep_range() but sets the
state of the current task as TASK_IDLE while sleeping.

Link: https://lkml.kernel.org/r/20211126145015.15862-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211126145015.15862-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: John Stultz <john.stultz@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit e4779015fd5d2fb8390c258268addff24d6077c7)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ie590ba5fcff22c981d0a7ecae6d8e551160136f3
---
 include/linux/delay.h |  8 ++++++++
 kernel/time/timer.c   | 30 ++++++++++++++++++++++++------
 2 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/include/linux/delay.h b/include/linux/delay.h
index 1d0e2ce6b6d9f..abecbccab6e44 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -20,6 +20,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/sched.h>
 
 extern unsigned long loops_per_jiffy;
 
@@ -58,8 +59,15 @@ void calibrate_delay(void);
 void __attribute__((weak)) calibration_delay_done(void);
 void msleep(unsigned int msecs);
 unsigned long msleep_interruptible(unsigned int msecs);
+void usleep_range_state(unsigned long min, unsigned long max,
+			unsigned int state);
 void usleep_range(unsigned long min, unsigned long max);
 
+static inline void usleep_idle_range(unsigned long min, unsigned long max)
+{
+	usleep_range_state(min, max, TASK_IDLE);
+}
+
 static inline void ssleep(unsigned int seconds)
 {
 	msleep(seconds * 1000);
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index ed71c41410472..1535065a7d76a 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -2053,26 +2053,44 @@ unsigned long msleep_interruptible(unsigned int msecs)
 EXPORT_SYMBOL(msleep_interruptible);
 
 /**
- * usleep_range - Sleep for an approximate time
- * @min: Minimum time in usecs to sleep
- * @max: Maximum time in usecs to sleep
+ * usleep_range_state - Sleep for an approximate time in a given state
+ * @min:	Minimum time in usecs to sleep
+ * @max:	Maximum time in usecs to sleep
+ * @state:	State of the current task that will be while sleeping
  *
  * In non-atomic context where the exact wakeup time is flexible, use
- * usleep_range() instead of udelay().  The sleep improves responsiveness
+ * usleep_range_state() instead of udelay().  The sleep improves responsiveness
  * by avoiding the CPU-hogging busy-wait of udelay(), and the range reduces
  * power usage by allowing hrtimers to take advantage of an already-
  * scheduled interrupt instead of scheduling a new one just for this sleep.
  */
-void __sched usleep_range(unsigned long min, unsigned long max)
+void __sched usleep_range_state(unsigned long min, unsigned long max,
+				unsigned int state)
 {
 	ktime_t exp = ktime_add_us(ktime_get(), min);
 	u64 delta = (u64)(max - min) * NSEC_PER_USEC;
 
 	for (;;) {
-		__set_current_state(TASK_UNINTERRUPTIBLE);
+		__set_current_state(state);
 		/* Do not return before the requested sleep time has elapsed */
 		if (!schedule_hrtimeout_range(&exp, delta, HRTIMER_MODE_ABS))
 			break;
 	}
 }
+
+/**
+ * usleep_range - Sleep for an approximate time
+ * @min: Minimum time in usecs to sleep
+ * @max: Maximum time in usecs to sleep
+ *
+ * In non-atomic context where the exact wakeup time is flexible, use
+ * usleep_range() instead of udelay().  The sleep improves responsiveness
+ * by avoiding the CPU-hogging busy-wait of udelay(), and the range reduces
+ * power usage by allowing hrtimers to take advantage of an already-
+ * scheduled interrupt instead of scheduling a new one just for this sleep.
+ */
+void __sched usleep_range(unsigned long min, unsigned long max)
+{
+	usleep_range_state(min, max, TASK_UNINTERRUPTIBLE);
+}
 EXPORT_SYMBOL(usleep_range);
-- 
GitLab


From cce6ca2fa3c7149b064c32cdf8941c6f89d1aaf4 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:25 -0800
Subject: [PATCH 4833/4878] UPSTREAM: mm/damon/core: fix fake load reports due
 to uninterruptible sleeps

Because DAMON sleeps in uninterruptible mode, /proc/loadavg reports fake
load while DAMON is turned on, though it is doing nothing.  This can
confuse users[1].  To avoid the case, this commit makes DAMON sleeps in
idle mode.

[1] https://lore.kernel.org/all/11868371.O9o76ZdvQC@natalenko.name/

Link: https://lkml.kernel.org/r/20211126145015.15862-3-sj@kernel.org
Fixes: 2224d8485492 ("mm: introduce Data Access MONitor (DAMON)")
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: SeongJae Park <sj@kernel.org>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 70e9274805fccfd175d0431a947bfd11ee7df40e)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Id3518e85d9b1db9f71b62932418993b4b9666326
---
 mm/damon/core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index c381b3c525d0b..2daffd5820fe0 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -981,9 +981,9 @@ static unsigned long damos_wmark_wait_us(struct damos *scheme)
 static void kdamond_usleep(unsigned long usecs)
 {
 	if (usecs > 100 * 1000)
-		schedule_timeout_interruptible(usecs_to_jiffies(usecs));
+		schedule_timeout_idle(usecs_to_jiffies(usecs));
 	else
-		usleep_range(usecs, usecs + 1);
+		usleep_idle_range(usecs, usecs + 1);
 }
 
 /* Returns negative error code if it's not activated but should return */
@@ -1038,7 +1038,7 @@ static int kdamond_fn(void *data)
 				ctx->callback.after_sampling(ctx))
 			done = true;
 
-		usleep_range(ctx->sample_interval, ctx->sample_interval + 1);
+		kdamond_usleep(ctx->sample_interval);
 
 		if (ctx->primitive.check_accesses)
 			max_nr_accesses = ctx->primitive.check_accesses(ctx);
-- 
GitLab


From 5e3197617187c6ef238e9dd3897d9fec0a6f8f36 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:28 -0800
Subject: [PATCH 4834/4878] UPSTREAM: mm/damon/core: use better timer
 mechanisms selection threshold

Patch series "mm/damon: Trivial fixups and improvements".

This patchset contains trivial fixups and improvements for DAMON and its
kunit/kselftest tests.

This patch (of 11):

DAMON is using hrtimer if requested sleep time is <=100ms, while the
suggested threshold[1] is <=20ms.  This commit applies the threshold.

[1] Documentation/timers/timers-howto.rst

Link: https://lkml.kernel.org/r/20211201150440.1088-2-sj@kernel.org
Fixes: ee801b7dd7822 ("mm/damon/schemes: activate schemes based on a watermarks mechanism")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 4de46a30b9929d3d1b29e481d48e9c25f8ac7919)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ieb5e3e196c96d8d54c83fecec53fdd13db763b62
---
 mm/damon/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 2daffd5820fe0..eefb2ada67cae 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -980,7 +980,8 @@ static unsigned long damos_wmark_wait_us(struct damos *scheme)
 
 static void kdamond_usleep(unsigned long usecs)
 {
-	if (usecs > 100 * 1000)
+	/* See Documentation/timers/timers-howto.rst for the thresholds */
+	if (usecs > 20 * USEC_PER_MSEC)
 		schedule_timeout_idle(usecs_to_jiffies(usecs));
 	else
 		usleep_idle_range(usecs, usecs + 1);
-- 
GitLab


From 1b77288b69d94ffce1ebfd7d893e52fa9da50f6b Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:31 -0800
Subject: [PATCH 4835/4878] UPSTREAM: mm/damon/dbgfs: remove an unnecessary
 error message

When wrong scheme action is requested via the debugfs interface, DAMON
prints an error message.  Because the function returns error code, this
is not really needed.  Because the code path is triggered by the user
specified input, this can result in kernel log mistakenly being messy.
To avoid the case, this commit removes the message.

Link: https://lkml.kernel.org/r/20211201150440.1088-3-sj@kernel.org
Fixes: af122dd8f3c0 ("mm/damon/dbgfs: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 0bceffa236af401f5206feaf3538526cbc427209)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I6c6e4ea6891eee04cb934f237b7d1768a766f240
---
 mm/damon/dbgfs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 9b520bb4a3e70..1efac0022e9a4 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -210,10 +210,8 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 				&wmarks.low, &parsed);
 		if (ret != 18)
 			break;
-		if (!damos_action_valid(action)) {
-			pr_err("wrong action %d\n", action);
+		if (!damos_action_valid(action))
 			goto fail;
-		}
 
 		pos += parsed;
 		scheme = damon_new_scheme(min_sz, max_sz, min_nr_a, max_nr_a,
-- 
GitLab


From 04b67c5cf27dd1e793e6beec117a390f9df2d897 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:34 -0800
Subject: [PATCH 4836/4878] UPSTREAM: mm/damon/core: remove unnecessary error
 messages

DAMON core prints error messages when damon_target object creation is
failed or wrong monitoring attributes are given.  Because appropriate
error code is returned for each case, the messages are not essential.
Also, because the code path can be triggered with user-specified input,
this could result in kernel log mistakenly being messy.  To avoid the
case, this commit removes the messages.

Link: https://lkml.kernel.org/r/20211201150440.1088-4-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Fixes: b9a6ac4e4ede ("mm/damon: adaptively adjust regions")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 1afaf5cb687de85c5e00ac70f6eea5597077cbc5)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I571336c5d49998029d4727b523b7a0950c753b2f
---
 mm/damon/core.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index eefb2ada67cae..e924978952025 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -282,7 +282,6 @@ int damon_set_targets(struct damon_ctx *ctx,
 	for (i = 0; i < nr_ids; i++) {
 		t = damon_new_target(ids[i]);
 		if (!t) {
-			pr_err("Failed to alloc damon_target\n");
 			/* The caller should do cleanup of the ids itself */
 			damon_for_each_target_safe(t, next, ctx)
 				damon_destroy_target(t);
@@ -312,16 +311,10 @@ int damon_set_attrs(struct damon_ctx *ctx, unsigned long sample_int,
 		    unsigned long aggr_int, unsigned long primitive_upd_int,
 		    unsigned long min_nr_reg, unsigned long max_nr_reg)
 {
-	if (min_nr_reg < 3) {
-		pr_err("min_nr_regions (%lu) must be at least 3\n",
-				min_nr_reg);
+	if (min_nr_reg < 3)
 		return -EINVAL;
-	}
-	if (min_nr_reg > max_nr_reg) {
-		pr_err("invalid nr_regions.  min (%lu) > max (%lu)\n",
-				min_nr_reg, max_nr_reg);
+	if (min_nr_reg > max_nr_reg)
 		return -EINVAL;
-	}
 
 	ctx->sample_interval = sample_int;
 	ctx->aggr_interval = aggr_int;
-- 
GitLab


From a5405bc0f57c7ed23fb309a3c40b4feb611f6c48 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:37 -0800
Subject: [PATCH 4837/4878] UPSTREAM: mm/damon/vaddr: remove an unnecessary
 warning message

The DAMON virtual address space monitoring primitive prints a warning
message for wrong DAMOS action.  However, it is not essential as the
code returns appropriate failure in the case.  This commit removes the
message to make the log clean.

Link: https://lkml.kernel.org/r/20211201150440.1088-5-sj@kernel.org
Fixes: 6dea8add4d28 ("mm/damon/vaddr: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 09e12289cc044afa484e70c0b379d579d52caf9a)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I695d3e813f9449b388f2757c6e81cba76ee3e1bf
---
 mm/damon/vaddr.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 35fe49080ee99..5609d0ad4afd6 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -626,7 +626,6 @@ int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	case DAMOS_STAT:
 		return 0;
 	default:
-		pr_warn("Wrong action %d\n", scheme->action);
 		return -EINVAL;
 	}
 
-- 
GitLab


From 0a44e491b5b312fdc47ef9cb35a21e777087079e Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:40 -0800
Subject: [PATCH 4838/4878] UPSTREAM: mm/damon/vaddr-test: split a test
 function having >1024 bytes frame size

On some configuration[1], 'damon_test_split_evenly()' kunit test
function has >1024 bytes frame size, so below build warning is
triggered:

      CC      mm/damon/vaddr.o
    In file included from mm/damon/vaddr.c:672:
    mm/damon/vaddr-test.h: In function 'damon_test_split_evenly':
    mm/damon/vaddr-test.h:309:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]
      309 | }
          | ^

This commit fixes the warning by separating the common logic in the
function.

[1] https://lore.kernel.org/linux-mm/202111182146.OV3C4uGr-lkp@intel.com/

Link: https://lkml.kernel.org/r/20211201150440.1088-6-sj@kernel.org
Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 044cd9750fe010170f5dc812e4824d98f5ea928c)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I78226fdde7f992f5aa8209f0996561a3f7efce84
---
 mm/damon/vaddr-test.h | 77 ++++++++++++++++++++++---------------------
 1 file changed, 40 insertions(+), 37 deletions(-)

diff --git a/mm/damon/vaddr-test.h b/mm/damon/vaddr-test.h
index ecfd0b2ed222d..3097ef9c662af 100644
--- a/mm/damon/vaddr-test.h
+++ b/mm/damon/vaddr-test.h
@@ -252,59 +252,62 @@ static void damon_test_apply_three_regions4(struct kunit *test)
 			new_three_regions, expected, ARRAY_SIZE(expected));
 }
 
-static void damon_test_split_evenly(struct kunit *test)
+static void damon_test_split_evenly_fail(struct kunit *test,
+		unsigned long start, unsigned long end, unsigned int nr_pieces)
 {
-	struct damon_ctx *c = damon_new_ctx();
-	struct damon_target *t;
-	struct damon_region *r;
-	unsigned long i;
-
-	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(NULL, NULL, 5),
-			-EINVAL);
-
-	t = damon_new_target(42);
-	r = damon_new_region(0, 100);
-	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 0), -EINVAL);
+	struct damon_target *t = damon_new_target(42);
+	struct damon_region *r = damon_new_region(start, end);
 
 	damon_add_region(r, t);
-	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 10), 0);
-	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 10u);
+	KUNIT_EXPECT_EQ(test,
+			damon_va_evenly_split_region(t, r, nr_pieces), -EINVAL);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 1u);
 
-	i = 0;
 	damon_for_each_region(r, t) {
-		KUNIT_EXPECT_EQ(test, r->ar.start, i++ * 10);
-		KUNIT_EXPECT_EQ(test, r->ar.end, i * 10);
+		KUNIT_EXPECT_EQ(test, r->ar.start, start);
+		KUNIT_EXPECT_EQ(test, r->ar.end, end);
 	}
+
 	damon_free_target(t);
+}
+
+static void damon_test_split_evenly_succ(struct kunit *test,
+	unsigned long start, unsigned long end, unsigned int nr_pieces)
+{
+	struct damon_target *t = damon_new_target(42);
+	struct damon_region *r = damon_new_region(start, end);
+	unsigned long expected_width = (end - start) / nr_pieces;
+	unsigned long i = 0;
 
-	t = damon_new_target(42);
-	r = damon_new_region(5, 59);
 	damon_add_region(r, t);
-	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 5), 0);
-	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 5u);
+	KUNIT_EXPECT_EQ(test,
+			damon_va_evenly_split_region(t, r, nr_pieces), 0);
+	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), nr_pieces);
 
-	i = 0;
 	damon_for_each_region(r, t) {
-		if (i == 4)
+		if (i == nr_pieces - 1)
 			break;
-		KUNIT_EXPECT_EQ(test, r->ar.start, 5 + 10 * i++);
-		KUNIT_EXPECT_EQ(test, r->ar.end, 5 + 10 * i);
+		KUNIT_EXPECT_EQ(test,
+				r->ar.start, start + i++ * expected_width);
+		KUNIT_EXPECT_EQ(test, r->ar.end, start + i * expected_width);
 	}
-	KUNIT_EXPECT_EQ(test, r->ar.start, 5 + 10 * i);
-	KUNIT_EXPECT_EQ(test, r->ar.end, 59ul);
+	KUNIT_EXPECT_EQ(test, r->ar.start, start + i * expected_width);
+	KUNIT_EXPECT_EQ(test, r->ar.end, end);
 	damon_free_target(t);
+}
 
-	t = damon_new_target(42);
-	r = damon_new_region(5, 6);
-	damon_add_region(r, t);
-	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(t, r, 2), -EINVAL);
-	KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 1u);
+static void damon_test_split_evenly(struct kunit *test)
+{
+	struct damon_ctx *c = damon_new_ctx();
+
+	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(NULL, NULL, 5),
+			-EINVAL);
+
+	damon_test_split_evenly_fail(test, 0, 100, 0);
+	damon_test_split_evenly_succ(test, 0, 100, 10);
+	damon_test_split_evenly_succ(test, 5, 59, 5);
+	damon_test_split_evenly_fail(test, 5, 6, 2);
 
-	damon_for_each_region(r, t) {
-		KUNIT_EXPECT_EQ(test, r->ar.start, 5ul);
-		KUNIT_EXPECT_EQ(test, r->ar.end, 6ul);
-	}
-	damon_free_target(t);
 	damon_destroy_ctx(c);
 }
 
-- 
GitLab


From 3de975028c54f79674bad04ad3f2a58d73c4a211 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 10 Dec 2021 14:46:43 -0800
Subject: [PATCH 4839/4878] UPSTREAM: mm/damon/vaddr-test: remove unnecessary
 variables

A couple of test functions in DAMON virtual address space monitoring
primitives implementation has unnecessary damon_ctx variables.  This
commit removes those.

Link: https://lkml.kernel.org/r/20211201150440.1088-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 9f86d624292c238203b3687cdb870a2cde1a6f9b)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ic7543d67d15843d7c2110302de950958a3b46e04
---
 mm/damon/vaddr-test.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/mm/damon/vaddr-test.h b/mm/damon/vaddr-test.h
index 3097ef9c662af..6a1b9272ea123 100644
--- a/mm/damon/vaddr-test.h
+++ b/mm/damon/vaddr-test.h
@@ -135,7 +135,6 @@ static void damon_do_test_apply_three_regions(struct kunit *test,
 				struct damon_addr_range *three_regions,
 				unsigned long *expected, int nr_expected)
 {
-	struct damon_ctx *ctx = damon_new_ctx();
 	struct damon_target *t;
 	struct damon_region *r;
 	int i;
@@ -145,7 +144,6 @@ static void damon_do_test_apply_three_regions(struct kunit *test,
 		r = damon_new_region(regions[i * 2], regions[i * 2 + 1]);
 		damon_add_region(r, t);
 	}
-	damon_add_target(ctx, t);
 
 	damon_va_apply_three_regions(t, three_regions);
 
@@ -154,8 +152,6 @@ static void damon_do_test_apply_three_regions(struct kunit *test,
 		KUNIT_EXPECT_EQ(test, r->ar.start, expected[i * 2]);
 		KUNIT_EXPECT_EQ(test, r->ar.end, expected[i * 2 + 1]);
 	}
-
-	damon_destroy_ctx(ctx);
 }
 
 /*
@@ -298,8 +294,6 @@ static void damon_test_split_evenly_succ(struct kunit *test,
 
 static void damon_test_split_evenly(struct kunit *test)
 {
-	struct damon_ctx *c = damon_new_ctx();
-
 	KUNIT_EXPECT_EQ(test, damon_va_evenly_split_region(NULL, NULL, 5),
 			-EINVAL);
 
@@ -307,8 +301,6 @@ static void damon_test_split_evenly(struct kunit *test)
 	damon_test_split_evenly_succ(test, 0, 100, 10);
 	damon_test_split_evenly_succ(test, 5, 59, 5);
 	damon_test_split_evenly_fail(test, 5, 6, 2);
-
-	damon_destroy_ctx(c);
 }
 
 static struct kunit_case damon_test_cases[] = {
-- 
GitLab


From 5529c8c7eb19bced3982c5f239a3f6e91a3a1a63 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 24 Dec 2021 21:12:54 -0800
Subject: [PATCH 4840/4878] UPSTREAM: mm/damon/dbgfs: protect targets
 destructions with kdamond_lock

DAMON debugfs interface iterates current monitoring targets in
'dbgfs_target_ids_read()' while holding the corresponding
'kdamond_lock'.  However, it also destructs the monitoring targets in
'dbgfs_before_terminate()' without holding the lock.  This can result in
a use_after_free bug.  This commit avoids the race by protecting the
destruction with the corresponding 'kdamond_lock'.

Link: https://lkml.kernel.org/r/20211221094447.2241-1-sj@kernel.org
Reported-by: Sangwoo Bae <sangwoob@amazon.com>
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>	[5.15.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 34796417964b8d0aef45a99cf6c2d20cebe33733)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I27e10c0e1ccc6c28c5a948a246e45db7a0338bed
---
 mm/damon/dbgfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 1efac0022e9a4..4fbd729edc9e7 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -650,10 +650,12 @@ static void dbgfs_before_terminate(struct damon_ctx *ctx)
 	if (!targetid_is_pid(ctx))
 		return;
 
+	mutex_lock(&ctx->kdamond_lock);
 	damon_for_each_target_safe(t, next, ctx) {
 		put_pid((struct pid *)t->id);
 		damon_destroy_target(t);
 	}
+	mutex_unlock(&ctx->kdamond_lock);
 }
 
 static struct damon_ctx *dbgfs_new_ctx(void)
-- 
GitLab


From b1ddf425f66f3adc0e91ba50261743544665fe0f Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Thu, 30 Dec 2021 20:12:34 -0800
Subject: [PATCH 4841/4878] UPSTREAM: mm/damon/dbgfs: fix 'struct pid' leaks in
 'dbgfs_target_ids_write()'

DAMON debugfs interface increases the reference counts of 'struct pid's
for targets from the 'target_ids' file write callback
('dbgfs_target_ids_write()'), but decreases the counts only in DAMON
monitoring termination callback ('dbgfs_before_terminate()').

Therefore, when 'target_ids' file is repeatedly written without DAMON
monitoring start/termination, the reference count is not decreased and
therefore memory for the 'struct pid' cannot be freed.  This commit
fixes this issue by decreasing the reference counts when 'target_ids' is
written.

Link: https://lkml.kernel.org/r/20211229124029.23348-1-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>	[5.15+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit ebb3f994dd92f8fb4d70c7541091216c1e10cb71)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I1d280e32acf9478f48c6946469da1444a2998464
---
 mm/damon/dbgfs.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 4fbd729edc9e7..ad65436756aff 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -353,6 +353,7 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 		const char __user *buf, size_t count, loff_t *ppos)
 {
 	struct damon_ctx *ctx = file->private_data;
+	struct damon_target *t, *next_t;
 	bool id_is_pid = true;
 	char *kbuf, *nrs;
 	unsigned long *targets;
@@ -397,8 +398,12 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 		goto unlock_out;
 	}
 
-	/* remove targets with previously-set primitive */
-	damon_set_targets(ctx, NULL, 0);
+	/* remove previously set targets */
+	damon_for_each_target_safe(t, next_t, ctx) {
+		if (targetid_is_pid(ctx))
+			put_pid((struct pid *)t->id);
+		damon_destroy_target(t);
+	}
 
 	/* Configure the context for the address space type */
 	if (id_is_pid)
-- 
GitLab


From df930c3b5d9b5ee67beb3c537182e87f42813951 Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:34 -0800
Subject: [PATCH 4842/4878] UPSTREAM: mm/damon: unified access_check function
 naming rules

Patch series "mm/damon: Do some small changes", v4.

This patch (of 4):

In damon/paddr.c file, two functions names start with underscore,
	static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,
			struct damon_region *r)
	static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,
			struct damon_region *r)
In damon/vaddr.c file, there are also two functions with the same function,
	static void damon_va_prepare_access_check(struct damon_ctx *ctx,
			struct mm_struct *mm, struct damon_region *r)
	static void damon_va_check_access(struct damon_ctx *ctx,
			struct mm_struct *mm, struct damon_region *r)

It makes sense to keep consistent, and it is not easy to be confused with
the function that call them.

Link: https://lkml.kernel.org/r/cover.1636989871.git.xhao@linux.alibaba.com
Link: https://lkml.kernel.org/r/529054aed932a42b9c09fc9977ad4574b9e7b0bd.1636989871.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit b627b774911660852ce7f3f3817955ddad2bd130)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I180e7f068ed4745c5fbc0e2a81320b7fda03c52e
---
 mm/damon/vaddr.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 5609d0ad4afd6..fa1c6d1da4bee 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -409,7 +409,7 @@ static void damon_va_mkold(struct mm_struct *mm, unsigned long addr)
  * Functions for the access checking of the regions
  */
 
-static void damon_va_prepare_access_check(struct damon_ctx *ctx,
+static void __damon_va_prepare_access_check(struct damon_ctx *ctx,
 			struct mm_struct *mm, struct damon_region *r)
 {
 	r->sampling_addr = damon_rand(r->ar.start, r->ar.end);
@@ -428,7 +428,7 @@ void damon_va_prepare_access_checks(struct damon_ctx *ctx)
 		if (!mm)
 			continue;
 		damon_for_each_region(r, t)
-			damon_va_prepare_access_check(ctx, mm, r);
+			__damon_va_prepare_access_check(ctx, mm, r);
 		mmput(mm);
 	}
 }
@@ -514,7 +514,7 @@ static bool damon_va_young(struct mm_struct *mm, unsigned long addr,
  * mm	'mm_struct' for the given virtual address space
  * r	the region to be checked
  */
-static void damon_va_check_access(struct damon_ctx *ctx,
+static void __damon_va_check_access(struct damon_ctx *ctx,
 			       struct mm_struct *mm, struct damon_region *r)
 {
 	static struct mm_struct *last_mm;
@@ -550,7 +550,7 @@ unsigned int damon_va_check_accesses(struct damon_ctx *ctx)
 		if (!mm)
 			continue;
 		damon_for_each_region(r, t) {
-			damon_va_check_access(ctx, mm, r);
+			__damon_va_check_access(ctx, mm, r);
 			max_nr_accesses = max(r->nr_accesses, max_nr_accesses);
 		}
 		mmput(mm);
-- 
GitLab


From 0fb0a85d4299d304a7f9eddc9e5aea85b19dcdd8 Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:40 -0800
Subject: [PATCH 4843/4878] UPSTREAM: mm/damon/core: use abs() instead of
 diff_of()

In kernel, we can use abs(a - b) to get the absolute value, So there is no
need to redefine a new one.

Link: https://lkml.kernel.org/r/b24e7b82d9efa90daf150d62dea171e19390ad0b.1636989871.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit d720bbbd70e968f8a0257393b575c3a29b56f990)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iab418bdc79cea24a175c2c5e17ab7ee393df6c47
---
 mm/damon/core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index e924978952025..04b8df7fd9e95 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -750,8 +750,6 @@ static void damon_merge_two_regions(struct damon_target *t,
 	damon_destroy_region(r, t);
 }
 
-#define diff_of(a, b) (a > b ? a - b : b - a)
-
 /*
  * Merge adjacent regions having similar access frequencies
  *
@@ -765,13 +763,13 @@ static void damon_merge_regions_of(struct damon_target *t, unsigned int thres,
 	struct damon_region *r, *prev = NULL, *next;
 
 	damon_for_each_region_safe(r, next, t) {
-		if (diff_of(r->nr_accesses, r->last_nr_accesses) > thres)
+		if (abs(r->nr_accesses - r->last_nr_accesses) > thres)
 			r->age = 0;
 		else
 			r->age++;
 
 		if (prev && prev->ar.end == r->ar.start &&
-		    diff_of(prev->nr_accesses, r->nr_accesses) <= thres &&
+		    abs(prev->nr_accesses - r->nr_accesses) <= thres &&
 		    sz_damon_region(prev) + sz_damon_region(r) <= sz_limit)
 			damon_merge_two_regions(t, prev, r);
 		else
-- 
GitLab


From ed97f2620f861f67051fa9f892fd049e23d34858 Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:44 -0800
Subject: [PATCH 4844/4878] UPSTREAM: mm/damon: remove some unneeded function
 definitions in damon.h

In damon.h some func definitions about VA & PA can only be used in its
own file, so there no need to define in the header file, and the header
file will look cleaner.

If other files later need these functions, the prototypes can be added
to damon.h at that time.

[sj@kernel.org: remove unnecessary function prototype position changes]
 Link: https://lkml.kernel.org/r/20211118114827.20052-1-sj@kernel.org

Link: https://lkml.kernel.org/r/45fd5b3ef6cce8e28dbc1c92f9dc845ccfc949d7.1636989871.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit cdeed009f3bceee41f73f0137db785fd29a05cb8)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I2203b9c8e4625493797e1f3e506431799c4404c9
---
 include/linux/damon.h | 21 ---------------------
 mm/damon/paddr.c      | 11 ++++++-----
 mm/damon/vaddr.c      | 18 ++++++++++--------
 3 files changed, 16 insertions(+), 34 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index b4d4be3cc987f..1d1be348f506e 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -461,34 +461,13 @@ int damon_stop(struct damon_ctx **ctxs, int nr_ctxs);
 #endif	/* CONFIG_DAMON */
 
 #ifdef CONFIG_DAMON_VADDR
-
-/* Monitoring primitives for virtual memory address spaces */
-void damon_va_init(struct damon_ctx *ctx);
-void damon_va_update(struct damon_ctx *ctx);
-void damon_va_prepare_access_checks(struct damon_ctx *ctx);
-unsigned int damon_va_check_accesses(struct damon_ctx *ctx);
 bool damon_va_target_valid(void *t);
-void damon_va_cleanup(struct damon_ctx *ctx);
-int damon_va_apply_scheme(struct damon_ctx *context, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme);
-int damon_va_scheme_score(struct damon_ctx *context, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme);
 void damon_va_set_primitives(struct damon_ctx *ctx);
-
 #endif	/* CONFIG_DAMON_VADDR */
 
 #ifdef CONFIG_DAMON_PADDR
-
-/* Monitoring primitives for the physical memory address space */
-void damon_pa_prepare_access_checks(struct damon_ctx *ctx);
-unsigned int damon_pa_check_accesses(struct damon_ctx *ctx);
 bool damon_pa_target_valid(void *t);
-int damon_pa_apply_scheme(struct damon_ctx *context, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme);
-int damon_pa_scheme_score(struct damon_ctx *context, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme);
 void damon_pa_set_primitives(struct damon_ctx *ctx);
-
 #endif	/* CONFIG_DAMON_PADDR */
 
 #endif	/* _DAMON_H */
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index a496d6f203d64..4318134cbc4c5 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -73,7 +73,7 @@ static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,
 	damon_pa_mkold(r->sampling_addr);
 }
 
-void damon_pa_prepare_access_checks(struct damon_ctx *ctx)
+static void damon_pa_prepare_access_checks(struct damon_ctx *ctx)
 {
 	struct damon_target *t;
 	struct damon_region *r;
@@ -192,7 +192,7 @@ static void __damon_pa_check_access(struct damon_ctx *ctx,
 	last_addr = r->sampling_addr;
 }
 
-unsigned int damon_pa_check_accesses(struct damon_ctx *ctx)
+static unsigned int damon_pa_check_accesses(struct damon_ctx *ctx)
 {
 	struct damon_target *t;
 	struct damon_region *r;
@@ -213,7 +213,7 @@ bool damon_pa_target_valid(void *t)
 	return true;
 }
 
-int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
+static int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 		struct damon_region *r, struct damos *scheme)
 {
 	unsigned long addr;
@@ -246,8 +246,9 @@ int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	return 0;
 }
 
-int damon_pa_scheme_score(struct damon_ctx *context, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme)
+static int damon_pa_scheme_score(struct damon_ctx *context,
+		struct damon_target *t, struct damon_region *r,
+		struct damos *scheme)
 {
 	switch (scheme->action) {
 	case DAMOS_PAGEOUT:
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index fa1c6d1da4bee..c55057264e986 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -271,7 +271,7 @@ static void __damon_va_init_regions(struct damon_ctx *ctx,
 }
 
 /* Initialize '->regions_list' of every target (task) */
-void damon_va_init(struct damon_ctx *ctx)
+static void damon_va_init(struct damon_ctx *ctx)
 {
 	struct damon_target *t;
 
@@ -291,7 +291,8 @@ void damon_va_init(struct damon_ctx *ctx)
  *
  * Returns true if it is.
  */
-static bool damon_intersect(struct damon_region *r, struct damon_addr_range *re)
+static bool damon_intersect(struct damon_region *r,
+		struct damon_addr_range *re)
 {
 	return !(r->ar.end <= re->start || re->end <= r->ar.start);
 }
@@ -355,7 +356,7 @@ static void damon_va_apply_three_regions(struct damon_target *t,
 /*
  * Update regions for current memory mappings
  */
-void damon_va_update(struct damon_ctx *ctx)
+static void damon_va_update(struct damon_ctx *ctx)
 {
 	struct damon_addr_range three_regions[3];
 	struct damon_target *t;
@@ -417,7 +418,7 @@ static void __damon_va_prepare_access_check(struct damon_ctx *ctx,
 	damon_va_mkold(mm, r->sampling_addr);
 }
 
-void damon_va_prepare_access_checks(struct damon_ctx *ctx)
+static void damon_va_prepare_access_checks(struct damon_ctx *ctx)
 {
 	struct damon_target *t;
 	struct mm_struct *mm;
@@ -538,7 +539,7 @@ static void __damon_va_check_access(struct damon_ctx *ctx,
 	last_addr = r->sampling_addr;
 }
 
-unsigned int damon_va_check_accesses(struct damon_ctx *ctx)
+static unsigned int damon_va_check_accesses(struct damon_ctx *ctx)
 {
 	struct damon_target *t;
 	struct mm_struct *mm;
@@ -602,7 +603,7 @@ out:
 }
 #endif	/* CONFIG_ADVISE_SYSCALLS */
 
-int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
+static int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 		struct damon_region *r, struct damos *scheme)
 {
 	int madv_action;
@@ -632,8 +633,9 @@ int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	return damos_madvise(t, r, madv_action);
 }
 
-int damon_va_scheme_score(struct damon_ctx *context, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme)
+static int damon_va_scheme_score(struct damon_ctx *context,
+		struct damon_target *t, struct damon_region *r,
+		struct damos *scheme)
 {
 
 	switch (scheme->action) {
-- 
GitLab


From 1a8086a78ed5fa3fd6e167f7534f790c6c557b64 Mon Sep 17 00:00:00 2001
From: Yihao Han <hanyihao@vivo.com>
Date: Fri, 14 Jan 2022 14:09:47 -0800
Subject: [PATCH 4845/4878] UPSTREAM: mm/damon/vaddr: remove swap_ranges() and
 replace it with swap()

Remove 'swap_ranges()' and replace it with the macro 'swap()' defined in
'include/linux/minmax.h' to simplify code and improve efficiency

Link: https://lkml.kernel.org/r/20211111115355.2808-1-hanyihao@vivo.com
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 8bd0b9da03c9154e279b1a502636103887b9fbed)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Icf565b52a7642fb830ae004764ca496986aed82a
---
 mm/damon/vaddr.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index c55057264e986..a65b1a4d236c7 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -97,16 +97,6 @@ static unsigned long sz_range(struct damon_addr_range *r)
 	return r->end - r->start;
 }
 
-static void swap_ranges(struct damon_addr_range *r1,
-			struct damon_addr_range *r2)
-{
-	struct damon_addr_range tmp;
-
-	tmp = *r1;
-	*r1 = *r2;
-	*r2 = tmp;
-}
-
 /*
  * Find three regions separated by two biggest unmapped regions
  *
@@ -145,9 +135,9 @@ static int __damon_va_three_regions(struct vm_area_struct *vma,
 		gap.start = last_vma->vm_end;
 		gap.end = vma->vm_start;
 		if (sz_range(&gap) > sz_range(&second_gap)) {
-			swap_ranges(&gap, &second_gap);
+			swap(gap, second_gap);
 			if (sz_range(&second_gap) > sz_range(&first_gap))
-				swap_ranges(&second_gap, &first_gap);
+				swap(second_gap, first_gap);
 		}
 next:
 		last_vma = vma;
@@ -158,7 +148,7 @@ next:
 
 	/* Sort the two biggest gaps by address */
 	if (first_gap.start > second_gap.start)
-		swap_ranges(&first_gap, &second_gap);
+		swap(first_gap, second_gap);
 
 	/* Store the result */
 	regions[0].start = ALIGN(start, DAMON_MIN_REGION);
-- 
GitLab


From 5fefa05ffd0faf18d571e736f430230d6b715ec3 Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:50 -0800
Subject: [PATCH 4846/4878] UPSTREAM: mm/damon/schemes: add the validity
 judgment of thresholds

In dbgfs "schemes" interface, i do some test like this:
    # cd /sys/kernel/debug/damon
    # echo "2 1 2 1 10 1 3 10 1 1 1 1 1 1 1 1 2 3" > schemes
    # cat schemes
    # 2 1 2 1 10 1 3 10 1 1 1 1 1 1 1 1 2 3 0 0

There have some unreasonable places, i set the valules of these variables
"<min_sz, max_sz> <min_nr_a, max_nr_a>, <min_age, max_age>, <wmarks.high,
wmarks.mid, wmarks.low>" as "<2, 1>, <2, 1>, <10, 1>, <1, 2, 3>.

So there add a validity judgment for these thresholds value.

Link: https://lkml.kernel.org/r/d78360e52158d786fcbf20bc62c96785742e76d3.1637239568.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit c89ae63eb0662b6c9f82dbfad3ef010239b8c1b1)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I2b23124b95ebeac935f28f9632dccaeabace4533
---
 mm/damon/dbgfs.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index ad65436756aff..bf36a2756cfb1 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -213,6 +213,13 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
 		if (!damos_action_valid(action))
 			goto fail;
 
+		if (min_sz > max_sz || min_nr_a > max_nr_a || min_age > max_age)
+			goto fail;
+
+		if (wmarks.high < wmarks.mid || wmarks.high < wmarks.low ||
+		    wmarks.mid <  wmarks.low)
+			goto fail;
+
 		pos += parsed;
 		scheme = damon_new_scheme(min_sz, max_sz, min_nr_a, max_nr_a,
 				min_age, max_age, action, &quota, &wmarks);
-- 
GitLab


From e7b7a5370d33a6bff54b869c1be4a13b41dd8377 Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:53 -0800
Subject: [PATCH 4847/4878] UPSTREAM: mm/damon: move damon_rand() definition
 into damon.h

damon_rand() is called in three files:damon/core.c, damon/ paddr.c,
damon/vaddr.c, i think there is no need to redefine this twice, So move
it to damon.h will be a good choice.

Link: https://lkml.kernel.org/r/20211202075859.51341-1-xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 9b2a38d6ef25c1748e3964b0ff30a89e4ed26583)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ib7be3062385fac4b422faa86705968aa39095a72
---
 include/linux/damon.h   | 4 ++++
 mm/damon/core.c         | 4 ----
 mm/damon/prmtv-common.h | 4 ----
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 1d1be348f506e..3e91a597a1aad 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -11,12 +11,16 @@
 #include <linux/mutex.h>
 #include <linux/time64.h>
 #include <linux/types.h>
+#include <linux/random.h>
 
 /* Minimal region size.  Every damon_region is aligned by this. */
 #define DAMON_MIN_REGION	PAGE_SIZE
 /* Max priority score for DAMON-based operation schemes */
 #define DAMOS_MAX_SCORE		(99)
 
+/* Get a random number in [l, r) */
+#define damon_rand(l, r) (l + prandom_u32_max(r - l))
+
 /**
  * struct damon_addr_range - Represents an address region of [@start, @end).
  * @start:	Start address of the region (inclusive).
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 04b8df7fd9e95..61e844d15b13a 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -11,7 +11,6 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/mm.h>
-#include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 
@@ -23,9 +22,6 @@
 #define DAMON_MIN_REGION 1
 #endif
 
-/* Get a random number in [l, r) */
-#define damon_rand(l, r) (l + prandom_u32_max(r - l))
-
 static DEFINE_MUTEX(damon_lock);
 static int nr_running_ctxs;
 
diff --git a/mm/damon/prmtv-common.h b/mm/damon/prmtv-common.h
index 61f27037603e1..e790cb5f8fe05 100644
--- a/mm/damon/prmtv-common.h
+++ b/mm/damon/prmtv-common.h
@@ -6,10 +6,6 @@
  */
 
 #include <linux/damon.h>
-#include <linux/random.h>
-
-/* Get a random number in [l, r) */
-#define damon_rand(l, r) (l + prandom_u32_max(r - l))
 
 struct page *damon_get_page(unsigned long pfn);
 
-- 
GitLab


From cb7e28849db0dfcc2bfb8ad17b4795085f881aa6 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:09:59 -0800
Subject: [PATCH 4848/4878] UPSTREAM: mm/damon: convert macro functions to
 static inline functions

Patch series "mm/damon: Misc cleanups".

This patchset contains miscellaneous cleanups for DAMON's macro
functions and documentation.

This patch (of 6):

This commit converts macro functions in DAMON to static inline functions,
for better type checking, code documentation, etc[1].

[1] https://lore.kernel.org/linux-mm/20211202151213.6ec830863342220da4141bc5@linux-foundation.org/

Link: https://lkml.kernel.org/r/20211209131806.19317-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211209131806.19317-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 88f86dcfa454784f7de550966c60fc78a3e95d6d)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Id1e4e08a844b49cf3572cb3ac02158f5c1909ea2
---
 include/linux/damon.h | 22 ++++++++++++++--------
 mm/damon/core.c       |  5 ++++-
 mm/damon/vaddr.c      |  6 ++++--
 3 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 3e91a597a1aad..87d04e044a5d5 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -396,14 +396,20 @@ struct damon_ctx {
 	struct list_head schemes;
 };
 
-#define damon_next_region(r) \
-	(container_of(r->list.next, struct damon_region, list))
-
-#define damon_prev_region(r) \
-	(container_of(r->list.prev, struct damon_region, list))
-
-#define damon_last_region(t) \
-	(list_last_entry(&t->regions_list, struct damon_region, list))
+static inline struct damon_region *damon_next_region(struct damon_region *r)
+{
+	return container_of(r->list.next, struct damon_region, list);
+}
+
+static inline struct damon_region *damon_prev_region(struct damon_region *r)
+{
+	return container_of(r->list.prev, struct damon_region, list);
+}
+
+static inline struct damon_region *damon_last_region(struct damon_target *t)
+{
+	return list_last_entry(&t->regions_list, struct damon_region, list);
+}
 
 #define damon_for_each_region(r, t) \
 	list_for_each_entry(r, &t->regions_list, list)
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 61e844d15b13a..4515cf82c433c 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -729,7 +729,10 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
 	}
 }
 
-#define sz_damon_region(r) (r->ar.end - r->ar.start)
+static inline unsigned long sz_damon_region(struct damon_region *r)
+{
+	return r->ar.end - r->ar.start;
+}
 
 /*
  * Merge two adjacent regions into one region
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index a65b1a4d236c7..981785c82f997 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -25,8 +25,10 @@
  * 't->id' should be the pointer to the relevant 'struct pid' having reference
  * count.  Caller must put the returned task, unless it is NULL.
  */
-#define damon_get_task_struct(t) \
-	(get_pid_task((struct pid *)t->id, PIDTYPE_PID))
+static inline struct task_struct *damon_get_task_struct(struct damon_target *t)
+{
+	return get_pid_task((struct pid *)t->id, PIDTYPE_PID);
+}
 
 /*
  * Get the mm_struct of the given target
-- 
GitLab


From caa9694119b436277c3419171b43074362c40ca2 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:17 -0800
Subject: [PATCH 4849/4878] UPSTREAM: mm/damon/schemes: account scheme actions
 that successfully applied

Patch series "mm/damon/schemes: Extend stats for better online analysis and tuning".

To help online access pattern analysis and tuning of DAMON-based
Operation Schemes (DAMOS), DAMOS provides simple statistics for each
scheme.  Introduction of DAMOS time/space quota further made the tuning
easier by making the risk management easier.  However, that also made
understanding of the working schemes a little bit more difficult.

For an example, progress of a given scheme can now be throttled by not
only the aggressiveness of the target access pattern, but also the
time/space quotas.  So, when a scheme is showing unexpectedly slow
progress, it's difficult to know by what the progress of the scheme is
throttled, with currently provided statistics.

This patchset extends the statistics to contain some metrics that can be
helpful for such online schemes analysis and tuning (patches 1-2),
exports those to users (patches 3 and 5), and add documents (patches 4
and 6).

This patch (of 6):

DAMON-based operation schemes (DAMOS) stats provide only the number and
the amount of regions that the action of the scheme has tried to be
applied.  Because the action could be failed for some reasons, the
currently provided information is sometimes not useful or convenient
enough for schemes profiling and tuning.  To improve this situation,
this commit extends the DAMOS stats to provide the number and the amount
of regions that the action has successfully applied.

Link: https://lkml.kernel.org/r/20211210150016.35349-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211210150016.35349-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 0e92c2ee9f459542c5384d9cfab24873c3dd6398)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iddfe9257cb99091404202576a1addc5cc340cb8b
---
 include/linux/damon.h | 28 +++++++++++++++++++++-------
 mm/damon/core.c       | 13 ++++++++-----
 mm/damon/dbgfs.c      |  2 +-
 mm/damon/paddr.c      | 13 +++++++------
 mm/damon/vaddr.c      | 30 ++++++++++++++++--------------
 5 files changed, 53 insertions(+), 33 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 87d04e044a5d5..59fcb5f895948 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -189,6 +189,20 @@ struct damos_watermarks {
 	bool activated;
 };
 
+/**
+ * struct damos_stat - Statistics on a given scheme.
+ * @nr_tried:	Total number of regions that the scheme is tried to be applied.
+ * @sz_tried:	Total size of regions that the scheme is tried to be applied.
+ * @nr_applied:	Total number of regions that the scheme is applied.
+ * @sz_applied:	Total size of regions that the scheme is applied.
+ */
+struct damos_stat {
+	unsigned long nr_tried;
+	unsigned long sz_tried;
+	unsigned long nr_applied;
+	unsigned long sz_applied;
+};
+
 /**
  * struct damos - Represents a Data Access Monitoring-based Operation Scheme.
  * @min_sz_region:	Minimum size of target regions.
@@ -200,8 +214,7 @@ struct damos_watermarks {
  * @action:		&damo_action to be applied to the target regions.
  * @quota:		Control the aggressiveness of this scheme.
  * @wmarks:		Watermarks for automated (in)activation of this scheme.
- * @stat_count:		Total number of regions that this scheme is applied.
- * @stat_sz:		Total size of regions that this scheme is applied.
+ * @stat:		Statistics of this scheme.
  * @list:		List head for siblings.
  *
  * For each aggregation interval, DAMON finds regions which fit in the
@@ -232,8 +245,7 @@ struct damos {
 	enum damos_action action;
 	struct damos_quota quota;
 	struct damos_watermarks wmarks;
-	unsigned long stat_count;
-	unsigned long stat_sz;
+	struct damos_stat stat;
 	struct list_head list;
 };
 
@@ -278,7 +290,8 @@ struct damon_ctx;
  * as an integer in [0, &DAMOS_MAX_SCORE].
  * @apply_scheme is called from @kdamond when a region for user provided
  * DAMON-based operation scheme is found.  It should apply the scheme's action
- * to the region.  This is not used for &DAMON_ARBITRARY_TARGET case.
+ * to the region and return bytes of the region that the action is successfully
+ * applied.
  * @target_valid should check whether the target is still valid for the
  * monitoring.
  * @cleanup is called from @kdamond just before its termination.
@@ -292,8 +305,9 @@ struct damon_primitive {
 	int (*get_scheme_score)(struct damon_ctx *context,
 			struct damon_target *t, struct damon_region *r,
 			struct damos *scheme);
-	int (*apply_scheme)(struct damon_ctx *context, struct damon_target *t,
-			struct damon_region *r, struct damos *scheme);
+	unsigned long (*apply_scheme)(struct damon_ctx *context,
+			struct damon_target *t, struct damon_region *r,
+			struct damos *scheme);
 	bool (*target_valid)(void *target);
 	void (*cleanup)(struct damon_ctx *context);
 };
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 4515cf82c433c..d745bf28509ff 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -102,8 +102,7 @@ struct damos *damon_new_scheme(
 	scheme->min_age_region = min_age_region;
 	scheme->max_age_region = max_age_region;
 	scheme->action = action;
-	scheme->stat_count = 0;
-	scheme->stat_sz = 0;
+	scheme->stat = (struct damos_stat){};
 	INIT_LIST_HEAD(&scheme->list);
 
 	scheme->quota.ms = quota->ms;
@@ -574,6 +573,7 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 		struct damos_quota *quota = &s->quota;
 		unsigned long sz = r->ar.end - r->ar.start;
 		struct timespec64 begin, end;
+		unsigned long sz_applied = 0;
 
 		if (!s->wmarks.activated)
 			continue;
@@ -627,7 +627,7 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 				damon_split_region_at(c, t, r, sz);
 			}
 			ktime_get_coarse_ts64(&begin);
-			c->primitive.apply_scheme(c, t, r, s);
+			sz_applied = c->primitive.apply_scheme(c, t, r, s);
 			ktime_get_coarse_ts64(&end);
 			quota->total_charged_ns += timespec64_to_ns(&end) -
 				timespec64_to_ns(&begin);
@@ -641,8 +641,11 @@ static void damon_do_apply_schemes(struct damon_ctx *c,
 			r->age = 0;
 
 update_stat:
-		s->stat_count++;
-		s->stat_sz += sz;
+		s->stat.nr_tried++;
+		s->stat.sz_tried += sz;
+		if (sz_applied)
+			s->stat.nr_applied++;
+		s->stat.sz_applied += sz_applied;
 	}
 }
 
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index bf36a2756cfb1..9318b52d0b462 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -117,7 +117,7 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 				s->quota.weight_age,
 				s->wmarks.metric, s->wmarks.interval,
 				s->wmarks.high, s->wmarks.mid, s->wmarks.low,
-				s->stat_count, s->stat_sz);
+				s->stat.nr_tried, s->stat.sz_tried);
 		if (!rc)
 			return -ENOMEM;
 
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index 4318134cbc4c5..5e8244f65a1a2 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -213,14 +213,15 @@ bool damon_pa_target_valid(void *t)
 	return true;
 }
 
-static int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme)
+static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
+		struct damon_target *t, struct damon_region *r,
+		struct damos *scheme)
 {
-	unsigned long addr;
+	unsigned long addr, applied;
 	LIST_HEAD(page_list);
 
 	if (scheme->action != DAMOS_PAGEOUT)
-		return -EINVAL;
+		return 0;
 
 	for (addr = r->ar.start; addr < r->ar.end; addr += PAGE_SIZE) {
 		struct page *page = damon_get_page(PHYS_PFN(addr));
@@ -241,9 +242,9 @@ static int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 			put_page(page);
 		}
 	}
-	reclaim_pages(&page_list);
+	applied = reclaim_pages(&page_list);
 	cond_resched();
-	return 0;
+	return applied * PAGE_SIZE;
 }
 
 static int damon_pa_scheme_score(struct damon_ctx *context,
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 981785c82f997..11d9a63fd4cbc 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -571,32 +571,34 @@ bool damon_va_target_valid(void *target)
 }
 
 #ifndef CONFIG_ADVISE_SYSCALLS
-static int damos_madvise(struct damon_target *target, struct damon_region *r,
-			int behavior)
+static unsigned long damos_madvise(struct damon_target *target,
+		struct damon_region *r, int behavior)
 {
-	return -EINVAL;
+	return 0;
 }
 #else
-static int damos_madvise(struct damon_target *target, struct damon_region *r,
-			int behavior)
+static unsigned long damos_madvise(struct damon_target *target,
+		struct damon_region *r, int behavior)
 {
 	struct mm_struct *mm;
-	int ret = -ENOMEM;
+	unsigned long start = PAGE_ALIGN(r->ar.start);
+	unsigned long len = PAGE_ALIGN(r->ar.end - r->ar.start);
+	unsigned long applied;
 
 	mm = damon_get_mm(target);
 	if (!mm)
-		goto out;
+		return 0;
 
-	ret = do_madvise(mm, PAGE_ALIGN(r->ar.start),
-			PAGE_ALIGN(r->ar.end - r->ar.start), behavior);
+	applied = do_madvise(mm, start, len, behavior) ? 0 : len;
 	mmput(mm);
-out:
-	return ret;
+
+	return applied;
 }
 #endif	/* CONFIG_ADVISE_SYSCALLS */
 
-static int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
-		struct damon_region *r, struct damos *scheme)
+static unsigned long damon_va_apply_scheme(struct damon_ctx *ctx,
+		struct damon_target *t, struct damon_region *r,
+		struct damos *scheme)
 {
 	int madv_action;
 
@@ -619,7 +621,7 @@ static int damon_va_apply_scheme(struct damon_ctx *ctx, struct damon_target *t,
 	case DAMOS_STAT:
 		return 0;
 	default:
-		return -EINVAL;
+		return 0;
 	}
 
 	return damos_madvise(t, r, madv_action);
-- 
GitLab


From 5388d0502f36786017c0431568de30806f4fc274 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:20 -0800
Subject: [PATCH 4850/4878] UPSTREAM: mm/damon/schemes: account how many times
 quota limit has exceeded

If the time/space quotas of a given DAMON-based operation scheme is too
small, the scheme could show unexpectedly slow progress.  However, there
is no good way to notice the case in runtime.  This commit extends the
DAMOS stat to provide how many times the quota limits exceeded so that
the users can easily notice the case and tune the scheme.

Link: https://lkml.kernel.org/r/20211210150016.35349-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 6268eac34ca30af7f6313504d556ec7fcd295621)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I36184dc51917810c81ac8d576b144e33a4454dc1
---
 include/linux/damon.h | 2 ++
 mm/damon/core.c       | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 59fcb5f895948..9dbb2210a2861 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -195,12 +195,14 @@ struct damos_watermarks {
  * @sz_tried:	Total size of regions that the scheme is tried to be applied.
  * @nr_applied:	Total number of regions that the scheme is applied.
  * @sz_applied:	Total size of regions that the scheme is applied.
+ * @qt_exceeds: Total number of times the quota of the scheme has exceeded.
  */
 struct damos_stat {
 	unsigned long nr_tried;
 	unsigned long sz_tried;
 	unsigned long nr_applied;
 	unsigned long sz_applied;
+	unsigned long qt_exceeds;
 };
 
 /**
diff --git a/mm/damon/core.c b/mm/damon/core.c
index d745bf28509ff..d5120b326e1b6 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -693,6 +693,8 @@ static void kdamond_apply_schemes(struct damon_ctx *c)
 		if (time_after_eq(jiffies, quota->charged_from +
 					msecs_to_jiffies(
 						quota->reset_interval))) {
+			if (quota->esz && quota->charged_sz >= quota->esz)
+				s->stat.qt_exceeds++;
 			quota->total_charged_sz += quota->charged_sz;
 			quota->charged_from = jiffies;
 			quota->charged_sz = 0;
-- 
GitLab


From 4baaaded13f821952a357081d37e72dd9dcf1f26 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:23 -0800
Subject: [PATCH 4851/4878] UPSTREAM: mm/damon/reclaim: provide reclamation
 statistics

This implements new DAMON_RECLAIM parameters for statistics reporting.
Those can be used for understanding how DAMON_RECLAIM is working, and
for tuning the other parameters.

Link: https://lkml.kernel.org/r/20211210150016.35349-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 60e52e7c46a127bca5ddd48b89002564f3862063)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I721bdacb3b2d8b41154296f5dbf8ef48c5dd0744
---
 mm/damon/reclaim.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/mm/damon/reclaim.c b/mm/damon/reclaim.c
index dc1485044eaf7..bc476cef688e8 100644
--- a/mm/damon/reclaim.c
+++ b/mm/damon/reclaim.c
@@ -185,6 +185,36 @@ module_param(monitor_region_end, ulong, 0600);
 static int kdamond_pid __read_mostly = -1;
 module_param(kdamond_pid, int, 0400);
 
+/*
+ * Number of memory regions that tried to be reclaimed.
+ */
+static unsigned long nr_reclaim_tried_regions __read_mostly;
+module_param(nr_reclaim_tried_regions, ulong, 0400);
+
+/*
+ * Total bytes of memory regions that tried to be reclaimed.
+ */
+static unsigned long bytes_reclaim_tried_regions __read_mostly;
+module_param(bytes_reclaim_tried_regions, ulong, 0400);
+
+/*
+ * Number of memory regions that successfully be reclaimed.
+ */
+static unsigned long nr_reclaimed_regions __read_mostly;
+module_param(nr_reclaimed_regions, ulong, 0400);
+
+/*
+ * Total bytes of memory regions that successfully be reclaimed.
+ */
+static unsigned long bytes_reclaimed_regions __read_mostly;
+module_param(bytes_reclaimed_regions, ulong, 0400);
+
+/*
+ * Number of times that the time/space quota limits have exceeded
+ */
+static unsigned long nr_quota_exceeds __read_mostly;
+module_param(nr_quota_exceeds, ulong, 0400);
+
 static struct damon_ctx *ctx;
 static struct damon_target *target;
 
@@ -333,6 +363,21 @@ static void damon_reclaim_timer_fn(struct work_struct *work)
 }
 static DECLARE_DELAYED_WORK(damon_reclaim_timer, damon_reclaim_timer_fn);
 
+static int damon_reclaim_after_aggregation(struct damon_ctx *c)
+{
+	struct damos *s;
+
+	/* update the stats parameter */
+	damon_for_each_scheme(s, c) {
+		nr_reclaim_tried_regions = s->stat.nr_tried;
+		bytes_reclaim_tried_regions = s->stat.sz_tried;
+		nr_reclaimed_regions = s->stat.nr_applied;
+		bytes_reclaimed_regions = s->stat.sz_applied;
+		nr_quota_exceeds = s->stat.qt_exceeds;
+	}
+	return 0;
+}
+
 static int __init damon_reclaim_init(void)
 {
 	ctx = damon_new_ctx();
@@ -340,6 +385,7 @@ static int __init damon_reclaim_init(void)
 		return -ENOMEM;
 
 	damon_pa_set_primitives(ctx);
+	ctx->callback.after_aggregation = damon_reclaim_after_aggregation;
 
 	/* 4242 means nothing but fun */
 	target = damon_new_target(4242);
-- 
GitLab


From 2d885a490288f313ce0aa588f19b3fde08224ac4 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:29 -0800
Subject: [PATCH 4852/4878] UPSTREAM: mm/damon/dbgfs: support all DAMOS stats

Currently, DAMON debugfs interface is not supporting DAMON-based
Operation Schemes (DAMOS) stats for schemes successfully applied regions
and time/space quota limit exceeds.  This adds the support.

Link: https://lkml.kernel.org/r/20211210150016.35349-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 3a619fdb8de8a3ecd4200e7d183d2c8ceb32289e)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ide3cfaff1b63e053ece5a8746a463fb87ef6c607
---
 mm/damon/dbgfs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 9318b52d0b462..751c7b8356848 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -105,7 +105,7 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 
 	damon_for_each_scheme(s, c) {
 		rc = scnprintf(&buf[written], len - written,
-				"%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %d %lu %lu %lu %lu %lu %lu\n",
+				"%lu %lu %u %u %u %u %d %lu %lu %lu %u %u %u %d %lu %lu %lu %lu %lu %lu %lu %lu %lu\n",
 				s->min_sz_region, s->max_sz_region,
 				s->min_nr_accesses, s->max_nr_accesses,
 				s->min_age_region, s->max_age_region,
@@ -117,7 +117,9 @@ static ssize_t sprint_schemes(struct damon_ctx *c, char *buf, ssize_t len)
 				s->quota.weight_age,
 				s->wmarks.metric, s->wmarks.interval,
 				s->wmarks.high, s->wmarks.mid, s->wmarks.low,
-				s->stat.nr_tried, s->stat.sz_tried);
+				s->stat.nr_tried, s->stat.sz_tried,
+				s->stat.nr_applied, s->stat.sz_applied,
+				s->stat.qt_exceeds);
 		if (!rc)
 			return -ENOMEM;
 
-- 
GitLab


From 196600574ba433b41940b80f2aee36b0b21e5d9b Mon Sep 17 00:00:00 2001
From: Baolin Wang <baolin.wang@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:10:35 -0800
Subject: [PATCH 4853/4878] UPSTREAM: mm/damon: add access checking for hugetlb
 pages

The process's VMAs can be mapped by hugetlb page, but now the DAMON did
not implement the access checking for hugetlb pte, so we can not get the
actual access count like below if a process VMAs were mapped by hugetlb.

  damon_aggregated: target_id=18446614368406014464 nr_regions=12 4194304-5476352: 0 545
  damon_aggregated: target_id=18446614368406014464 nr_regions=12 140662370467840-140662372970496: 0 545
  damon_aggregated: target_id=18446614368406014464 nr_regions=12 140662372970496-140662375460864: 0 545
  damon_aggregated: target_id=18446614368406014464 nr_regions=12 140662375460864-140662377951232: 0 545
  damon_aggregated: target_id=18446614368406014464 nr_regions=12 140662377951232-140662380449792: 0 545
  damon_aggregated: target_id=18446614368406014464 nr_regions=12 140662380449792-140662382944256: 0 545
  ......

Thus this patch adds hugetlb access checking support, with this patch we
can see below VMA mapped by hugetlb access count.

  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296486649856-140296489914368: 1 3
  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296489914368-140296492978176: 1 3
  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296492978176-140296495439872: 1 3
  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296495439872-140296498311168: 1 3
  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296498311168-140296501198848: 1 3
  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296501198848-140296504320000: 1 3
  damon_aggregated: target_id=18446613056935405824 nr_regions=12 140296504320000-140296507568128: 1 2
  ......

[baolin.wang@linux.alibaba.com: fix unused var warning]
  Link: https://lkml.kernel.org/r/1aaf9c11-0d8e-b92d-5c92-46e50a6e8d4e@linux.alibaba.com
[baolin.wang@linux.alibaba.com: v3]
  Link: https://lkml.kernel.org/r/486927ecaaaecf2e3a7fbe0378ec6e1c58b50747.1640852276.git.baolin.wang@linux.alibaba.com

Link: https://lkml.kernel.org/r/6afcbd1fda5f9c7c24f320d26a98188c727ceec3.1639623751.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 49f4203aae06ba9d67b500c90339b262b0a52637)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Id7c86f5c0344efef150b3b27f662b696263947ed
---
 mm/damon/vaddr.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 11d9a63fd4cbc..57e34d1649601 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -387,8 +387,65 @@ out:
 	return 0;
 }
 
+#ifdef CONFIG_HUGETLB_PAGE
+static void damon_hugetlb_mkold(pte_t *pte, struct mm_struct *mm,
+				struct vm_area_struct *vma, unsigned long addr)
+{
+	bool referenced = false;
+	pte_t entry = huge_ptep_get(pte);
+	struct page *page = pte_page(entry);
+
+	if (!page)
+		return;
+
+	get_page(page);
+
+	if (pte_young(entry)) {
+		referenced = true;
+		entry = pte_mkold(entry);
+		huge_ptep_set_access_flags(vma, addr, pte, entry,
+					   vma->vm_flags & VM_WRITE);
+	}
+
+#ifdef CONFIG_MMU_NOTIFIER
+	if (mmu_notifier_clear_young(mm, addr,
+				     addr + huge_page_size(hstate_vma(vma))))
+		referenced = true;
+#endif /* CONFIG_MMU_NOTIFIER */
+
+	if (referenced)
+		set_page_young(page);
+
+	set_page_idle(page);
+	put_page(page);
+}
+
+static int damon_mkold_hugetlb_entry(pte_t *pte, unsigned long hmask,
+				     unsigned long addr, unsigned long end,
+				     struct mm_walk *walk)
+{
+	struct hstate *h = hstate_vma(walk->vma);
+	spinlock_t *ptl;
+	pte_t entry;
+
+	ptl = huge_pte_lock(h, walk->mm, pte);
+	entry = huge_ptep_get(pte);
+	if (!pte_present(entry))
+		goto out;
+
+	damon_hugetlb_mkold(pte, walk->mm, walk->vma, addr);
+
+out:
+	spin_unlock(ptl);
+	return 0;
+}
+#else
+#define damon_mkold_hugetlb_entry NULL
+#endif /* CONFIG_HUGETLB_PAGE */
+
 static const struct mm_walk_ops damon_mkold_ops = {
 	.pmd_entry = damon_mkold_pmd_entry,
+	.hugetlb_entry = damon_mkold_hugetlb_entry,
 };
 
 static void damon_va_mkold(struct mm_struct *mm, unsigned long addr)
@@ -483,8 +540,47 @@ out:
 	return 0;
 }
 
+#ifdef CONFIG_HUGETLB_PAGE
+static int damon_young_hugetlb_entry(pte_t *pte, unsigned long hmask,
+				     unsigned long addr, unsigned long end,
+				     struct mm_walk *walk)
+{
+	struct damon_young_walk_private *priv = walk->private;
+	struct hstate *h = hstate_vma(walk->vma);
+	struct page *page;
+	spinlock_t *ptl;
+	pte_t entry;
+
+	ptl = huge_pte_lock(h, walk->mm, pte);
+	entry = huge_ptep_get(pte);
+	if (!pte_present(entry))
+		goto out;
+
+	page = pte_page(entry);
+	if (!page)
+		goto out;
+
+	get_page(page);
+
+	if (pte_young(entry) || !page_is_idle(page) ||
+	    mmu_notifier_test_young(walk->mm, addr)) {
+		*priv->page_sz = huge_page_size(h);
+		priv->young = true;
+	}
+
+	put_page(page);
+
+out:
+	spin_unlock(ptl);
+	return 0;
+}
+#else
+#define damon_young_hugetlb_entry NULL
+#endif /* CONFIG_HUGETLB_PAGE */
+
 static const struct mm_walk_ops damon_young_ops = {
 	.pmd_entry = damon_young_pmd_entry,
+	.hugetlb_entry = damon_young_hugetlb_entry,
 };
 
 static bool damon_va_young(struct mm_struct *mm, unsigned long addr,
-- 
GitLab


From 1b9e81febe0f6180f88fd292cb96e6e00956d757 Mon Sep 17 00:00:00 2001
From: Guoqing Jiang <guoqing.jiang@linux.dev>
Date: Fri, 14 Jan 2022 14:10:38 -0800
Subject: [PATCH 4854/4878] UPSTREAM: mm/damon: move the implementation of
 damon_insert_region to damon.h

Usually, inline function is declared static since it should sit between
storage and type.  And implement it in a header file if used by multiple
files.

And this change also fixes compile issue when backport damon to 5.10.

  mm/damon/vaddr.c: In function `damon_va_evenly_split_region':
  ./include/linux/damon.h:425:13: error: inlining failed in call to `always_inline' `damon_insert_region': function body not available
  425 | inline void damon_insert_region(struct damon_region *r,
      | ^~~~~~~~~~~~~~~~~~~
  mm/damon/vaddr.c:86:3: note: called from here
  86 | damon_insert_region(n, r, next, t);
     | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Link: https://lkml.kernel.org/r/20211223085703.6142-1-guoqing.jiang@linux.dev
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 2cd4b8e10cc31eadb5b10b1d73b3f28156f3776c)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iaa05318092b8e98bfbfc72a8c5df2cb6de97d224
---
 include/linux/damon.h | 13 +++++++++++--
 mm/damon/core.c       | 11 -----------
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index 9dbb2210a2861..b4e3dfb620635 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -448,9 +448,18 @@ static inline struct damon_region *damon_last_region(struct damon_target *t)
 #ifdef CONFIG_DAMON
 
 struct damon_region *damon_new_region(unsigned long start, unsigned long end);
-inline void damon_insert_region(struct damon_region *r,
+
+/*
+ * Add a region between two other regions
+ */
+static inline void damon_insert_region(struct damon_region *r,
 		struct damon_region *prev, struct damon_region *next,
-		struct damon_target *t);
+		struct damon_target *t)
+{
+	__list_add(&r->list, &prev->list, &next->list);
+	t->nr_regions++;
+}
+
 void damon_add_region(struct damon_region *r, struct damon_target *t);
 void damon_destroy_region(struct damon_region *r, struct damon_target *t);
 
diff --git a/mm/damon/core.c b/mm/damon/core.c
index d5120b326e1b6..6482d510dcbe3 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -49,17 +49,6 @@ struct damon_region *damon_new_region(unsigned long start, unsigned long end)
 	return region;
 }
 
-/*
- * Add a region between two other regions
- */
-inline void damon_insert_region(struct damon_region *r,
-		struct damon_region *prev, struct damon_region *next,
-		struct damon_target *t)
-{
-	__list_add(&r->list, &prev->list, &next->list);
-	t->nr_regions++;
-}
-
 void damon_add_region(struct damon_region *r, struct damon_target *t)
 {
 	list_add_tail(&r->list, &t->regions_list);
-- 
GitLab


From 6be0ebcb8938d5e99c804079dd75a41aa956cecd Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:41 -0800
Subject: [PATCH 4855/4878] UPSTREAM: mm/damon/dbgfs: remove an unnecessary
 variable

Patch series "mm/damon: Hide unnecessary information disclosures".

DAMON is exposing some unnecessary information including kernel pointer
in kernel log and tracepoint.  This patchset hides such information.
The first patch is only for a trivial cleanup, though.

This patch (of 4):

This commit removes a unnecessarily used variable in
dbgfs_target_ids_write().

Link: https://lkml.kernel.org/r/20211229131016.23641-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20211229131016.23641-2-sj@kernel.org
Fixes: 4bc05954d007 ("mm/damon: implement a debugfs-based user space interface")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 70b8480812d0a3930049a44820a1fa149b090c10)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I774c900de92780ae9ebf09f01c0b0536eb43f822
---
 mm/damon/dbgfs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 751c7b8356848..5b899601e56c3 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -364,7 +364,7 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 	struct damon_ctx *ctx = file->private_data;
 	struct damon_target *t, *next_t;
 	bool id_is_pid = true;
-	char *kbuf, *nrs;
+	char *kbuf;
 	unsigned long *targets;
 	ssize_t nr_targets;
 	ssize_t ret;
@@ -374,14 +374,13 @@ static ssize_t dbgfs_target_ids_write(struct file *file,
 	if (IS_ERR(kbuf))
 		return PTR_ERR(kbuf);
 
-	nrs = kbuf;
 	if (!strncmp(kbuf, "paddr\n", count)) {
 		id_is_pid = false;
 		/* target id is meaningless here, but we set it just for fun */
 		scnprintf(kbuf, count, "42    ");
 	}
 
-	targets = str_to_target_ids(nrs, count, &nr_targets);
+	targets = str_to_target_ids(kbuf, count, &nr_targets);
 	if (!targets) {
 		ret = -ENOMEM;
 		goto out;
-- 
GitLab


From a0220f613b7472f31b151cdc91b7221b347277f5 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:44 -0800
Subject: [PATCH 4856/4878] UPSTREAM: mm/damon/vaddr: use pr_debug() for
 damon_va_three_regions() failure logging

Failure of 'damon_va_three_regions()' is logged using 'pr_err()'.  But,
the function can fail in legal situations.  To avoid making users be
surprised and to keep the kernel clean, this makes the log to be printed
using 'pr_debug()'.

Link: https://lkml.kernel.org/r/20211229131016.23641-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 251403f19aab6a122f4dcfb14149814e85564202)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I0a2c08d856d0067af6af7a008e89f63fa5fac381
---
 mm/damon/vaddr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 57e34d1649601..420ef396b136e 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -237,7 +237,7 @@ static void __damon_va_init_regions(struct damon_ctx *ctx,
 	int i;
 
 	if (damon_va_three_regions(t, regions)) {
-		pr_err("Failed to get three regions of target %lu\n", t->id);
+		pr_debug("Failed to get three regions of target %lu\n", t->id);
 		return;
 	}
 
-- 
GitLab


From 1656aa6e496ffaa385ec2a9443842bcceb66074a Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:47 -0800
Subject: [PATCH 4857/4878] UPSTREAM: mm/damon/vaddr: hide kernel pointer from
 damon_va_three_regions() failure log

The failure log message for 'damon_va_three_regions()' prints the target
id, which is a 'struct pid' pointer in the case.  To avoid exposing the
kernel pointer via the log, this makes the log to use the index of the
target in the context's targets list instead.

Link: https://lkml.kernel.org/r/20211229131016.23641-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 962fe7a6b1b2f9deb1b31b3344afa3b11afdf7ab)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I6b9b09a9b7024630f05ec41db030006d63f47ce1
---
 mm/damon/vaddr.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 420ef396b136e..5a8945571c592 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -231,13 +231,19 @@ static int damon_va_three_regions(struct damon_target *t,
 static void __damon_va_init_regions(struct damon_ctx *ctx,
 				     struct damon_target *t)
 {
+	struct damon_target *ti;
 	struct damon_region *r;
 	struct damon_addr_range regions[3];
 	unsigned long sz = 0, nr_pieces;
-	int i;
+	int i, tidx = 0;
 
 	if (damon_va_three_regions(t, regions)) {
-		pr_debug("Failed to get three regions of target %lu\n", t->id);
+		damon_for_each_target(ti, ctx) {
+			if (ti == t)
+				break;
+			tidx++;
+		}
+		pr_debug("Failed to get three regions of %dth target\n", tidx);
 		return;
 	}
 
-- 
GitLab


From 3d89e63310602997e91aecde951170b2caf61ba9 Mon Sep 17 00:00:00 2001
From: SeongJae Park <sj@kernel.org>
Date: Fri, 14 Jan 2022 14:10:50 -0800
Subject: [PATCH 4858/4878] UPSTREAM: mm/damon: hide kernel pointer from
 tracepoint event

DAMON's virtual address spaces monitoring primitive uses 'struct pid *'
of the target process as its monitoring target id.  The kernel address
is exposed as-is to the user space via the DAMON tracepoint,
'damon_aggregated'.

Though primarily only privileged users are allowed to access that, it
would be better to avoid unnecessarily exposing kernel pointers so.
Because the trace result is only required to be able to distinguish each
target, we aren't need to use the pointer as-is.

This makes the tracepoint to use the index of the target in the
context's targets list as its id in the tracepoint, to hide the kernel
space address.

Link: https://lkml.kernel.org/r/20211229131016.23641-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 76fd0285b447991267e838842c0be7395eb454bb)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Iee4a6f56cf9bf5f61fb95f438dfc3316c10198e5
---
 include/trace/events/damon.h | 8 ++++----
 mm/damon/core.c              | 4 +++-
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
index 2f422f4f1fb9e..e0a344fda98e1 100644
--- a/include/trace/events/damon.h
+++ b/include/trace/events/damon.h
@@ -11,10 +11,10 @@
 
 TRACE_EVENT(damon_aggregated,
 
-	TP_PROTO(struct damon_target *t, struct damon_region *r,
-		unsigned int nr_regions),
+	TP_PROTO(struct damon_target *t, unsigned int target_id,
+		struct damon_region *r, unsigned int nr_regions),
 
-	TP_ARGS(t, r, nr_regions),
+	TP_ARGS(t, target_id, r, nr_regions),
 
 	TP_STRUCT__entry(
 		__field(unsigned long, target_id)
@@ -25,7 +25,7 @@ TRACE_EVENT(damon_aggregated,
 	),
 
 	TP_fast_assign(
-		__entry->target_id = t->id;
+		__entry->target_id = target_id;
 		__entry->nr_regions = nr_regions;
 		__entry->start = r->ar.start;
 		__entry->end = r->ar.end;
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 6482d510dcbe3..1dd153c31c9e2 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -514,15 +514,17 @@ static bool kdamond_aggregate_interval_passed(struct damon_ctx *ctx)
 static void kdamond_reset_aggregated(struct damon_ctx *c)
 {
 	struct damon_target *t;
+	unsigned int ti = 0;	/* target's index */
 
 	damon_for_each_target(t, c) {
 		struct damon_region *r;
 
 		damon_for_each_region(r, t) {
-			trace_damon_aggregated(t, r, damon_nr_regions(t));
+			trace_damon_aggregated(t, ti, r, damon_nr_regions(t));
 			r->last_nr_accesses = r->nr_accesses;
 			r->nr_accesses = 0;
 		}
+		ti++;
 	}
 }
 
-- 
GitLab


From 284927effacab167c4ce3ec70c2802cec08ab8cf Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:37 -0800
Subject: [PATCH 4859/4878] UPSTREAM: mm/damon: add 'age' of region tracepoint
 support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

In Damon, we can get age information by analyzing the nr_access change,
But short time sampling is not effective, we have to obtain enough data
for analysis through long time trace, this also means that we need to
consume more cpu resources and storage space.

Now the region add a new 'age' variable, we only need to get the change of
age value through a little time trace, for example, age has been
increasing to 141, but nr_access shows a value of 0 at the same time,
Through this，we can conclude that the region has a very low nr_access
value for a long time.

Link: https://lkml.kernel.org/r/b9def1262af95e0dc1d0caea447886434db01161.1636989871.git.xhao@linux.alibaba.com
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit c46b0bb6a735db0b6140e12e750b5acb1b032982)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I39aeea71756f5af6f270efe9d5653815c905af46
---
 include/trace/events/damon.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/damon.h b/include/trace/events/damon.h
index e0a344fda98e1..c79f1d4c39afe 100644
--- a/include/trace/events/damon.h
+++ b/include/trace/events/damon.h
@@ -22,6 +22,7 @@ TRACE_EVENT(damon_aggregated,
 		__field(unsigned long, start)
 		__field(unsigned long, end)
 		__field(unsigned int, nr_accesses)
+		__field(unsigned int, age)
 	),
 
 	TP_fast_assign(
@@ -30,11 +31,13 @@ TRACE_EVENT(damon_aggregated,
 		__entry->start = r->ar.start;
 		__entry->end = r->ar.end;
 		__entry->nr_accesses = r->nr_accesses;
+		__entry->age = r->age;
 	),
 
-	TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u",
+	TP_printk("target_id=%lu nr_regions=%u %lu-%lu: %u %u",
 			__entry->target_id, __entry->nr_regions,
-			__entry->start, __entry->end, __entry->nr_accesses)
+			__entry->start, __entry->end,
+			__entry->nr_accesses, __entry->age)
 );
 
 #endif /* _TRACE_DAMON_H */
-- 
GitLab


From 891f111a149a5bf7ca5404d28fbbaf4cbaa71f60 Mon Sep 17 00:00:00 2001
From: Xin Hao <xhao@linux.alibaba.com>
Date: Fri, 14 Jan 2022 14:09:56 -0800
Subject: [PATCH 4860/4878] UPSTREAM: mm/damon: modify damon_rand() macro to
 static inline function

damon_rand() cannot be implemented as a macro.

Example:
	damon_rand(a++, b);

The value of 'a' will be incremented twice, This is obviously
unreasonable, So there fix it.

Link: https://lkml.kernel.org/r/110ffcd4e420c86c42b41ce2bc9f0fe6a4f32cd3.1638795127.git.xhao@linux.alibaba.com
Fixes: b9a6ac4e4ede ("mm/damon: adaptively adjust regions")
Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 234d68732b6c135087bdebfa0630a43ae8c27758)

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Idcc316e6f582959254111fb160d04875d235c306
---
 include/linux/damon.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/damon.h b/include/linux/damon.h
index b4e3dfb620635..5e1e3a128b77a 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -19,7 +19,10 @@
 #define DAMOS_MAX_SCORE		(99)
 
 /* Get a random number in [l, r) */
-#define damon_rand(l, r) (l + prandom_u32_max(r - l))
+static inline unsigned long damon_rand(unsigned long l, unsigned long r)
+{
+	return l + prandom_u32_max(r - l);
+}
 
 /**
  * struct damon_addr_range - Represents an address region of [@start, @end).
-- 
GitLab


From ca5cc6bc4cfbed230afa5894c2cd508a8dc9f393 Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kuba@kernel.org>
Date: Thu, 2 Dec 2021 12:34:00 -0800
Subject: [PATCH 4861/4878] BACKPORT: treewide: Add missing includes masked by
 cgroup -> bpf dependency
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

cgroup.h (therefore swap.h, therefore half of the universe)
includes bpf.h which in turn includes module.h and slab.h.
Since we're about to get rid of that dependency we need
to clean things up.

v2: drop the cpu.h include from cacheinfo.h, it's not necessary
and it makes riscv sensitive to ordering of include files.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Krzysztof Wilczyński <kw@linux.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Acked-by: SeongJae Park <sj@kernel.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/all/20211120035253.72074-1-kuba@kernel.org/  # v1
Link: https://lore.kernel.org/all/20211120165528.197359-1-kuba@kernel.org/ # cacheinfo discussion
Link: https://lore.kernel.org/bpf/20211202203400.1208663-1-kuba@kernel.org

(cherry picked from commit 8581fd402a0cf80b5298e3b225e7a7bd8f110e69)

Dropped all the changes except for the ones made in mm/damon/vaddr.c

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ib64ecbe4e06f192ed576af77e03e6b49d538bac9
---
 mm/damon/vaddr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 5a8945571c592..89b6468da2b9b 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -13,6 +13,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/page_idle.h>
 #include <linux/pagewalk.h>
+#include <linux/sched/mm.h>
 
 #include "prmtv-common.h"
 
-- 
GitLab


From b3190b539a0845d3b849926b723deeeacc7491a4 Mon Sep 17 00:00:00 2001
From: Hailong Tu <tuhailong@oppo.com>
Date: Wed, 20 Apr 2022 16:37:15 +0800
Subject: [PATCH 4862/4878] FROMLIST: mm/damon/reclaim: Fix the timer always
 stays active

The timer stays active even if the reclaim mechanism is never enabled.
It is unnecessary overhead can be completely avoided by using module_param_cb() for enabled flag.

Signed-off-by: Hailong Tu <tuhailong@gmail.com>

Link: https://lore.kernel.org/all/20220421125910.1052459-1-tuhailong@gmail.com/

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: I77591e41ce424ce16a4a5c70e7a86cdae996a354
---
 mm/damon/reclaim.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/mm/damon/reclaim.c b/mm/damon/reclaim.c
index bc476cef688e8..183d4f3b4fde7 100644
--- a/mm/damon/reclaim.c
+++ b/mm/damon/reclaim.c
@@ -28,7 +28,6 @@
  * this.
  */
 static bool enabled __read_mostly;
-module_param(enabled, bool, 0600);
 
 /*
  * Time threshold for cold memory regions identification in microseconds.
@@ -358,11 +357,35 @@ static void damon_reclaim_timer_fn(struct work_struct *work)
 			enabled = last_enabled;
 	}
 
-	schedule_delayed_work(&damon_reclaim_timer,
+	if (enabled)
+		schedule_delayed_work(&damon_reclaim_timer,
 			msecs_to_jiffies(ENABLE_CHECK_INTERVAL_MS));
 }
 static DECLARE_DELAYED_WORK(damon_reclaim_timer, damon_reclaim_timer_fn);
 
+static int enabled_store(const char *val,
+		const struct kernel_param *kp)
+{
+	int rc = param_set_bool(val, kp);
+
+	if (rc < 0)
+		return rc;
+
+	if (enabled)
+		schedule_delayed_work(&damon_reclaim_timer, 0);
+
+	return 0;
+}
+
+static const struct kernel_param_ops enabled_param_ops = {
+	.set = enabled_store,
+	.get = param_get_bool,
+};
+
+module_param_cb(enabled, &enabled_param_ops, &enabled, 0600);
+MODULE_PARM_DESC(enabled,
+        "Enable or disable DAMON_RECLAIM (default: disabled)");
+
 static int damon_reclaim_after_aggregation(struct damon_ctx *c)
 {
 	struct damos *s;
-- 
GitLab


From 0496c13ded02bd72426d189b777bf303fe490f62 Mon Sep 17 00:00:00 2001
From: tuhailong <tuhailong@oppo.com>
Date: Wed, 13 Apr 2022 16:45:07 +0800
Subject: [PATCH 4863/4878] ANDROID: GKI: build damon reclaim

To enable it, echo 1 > /sys/module/damon_reclaim/parameters/enable

Bug: 228223814
Signed-off-by: Hailong Tu <tuhailong@oppo.com>
Change-Id: Ibb0701b6dd83070c6fbc8c96fdac3bc839821377
---
 arch/arm64/configs/gki_defconfig | 3 +++
 arch/x86/configs/gki_defconfig   | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 0809508013924..9fef3770f3703 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -125,6 +125,9 @@ CONFIG_CMA_AREAS=16
 CONFIG_READ_ONLY_THP_FOR_FS=y
 CONFIG_ANON_VMA_NAME=y
 CONFIG_LRU_GEN=y
+CONFIG_DAMON=y
+CONFIG_DAMON_PADDR=y
+CONFIG_DAMON_RECLAIM=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 083731791dc14..02826ddbb7125 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -100,6 +100,9 @@ CONFIG_CMA_AREAS=16
 CONFIG_READ_ONLY_THP_FOR_FS=y
 CONFIG_ANON_VMA_NAME=y
 CONFIG_LRU_GEN=y
+CONFIG_DAMON=y
+CONFIG_DAMON_PADDR=y
+CONFIG_DAMON_RECLAIM=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
-- 
GitLab


From a50ef731e098167b1e8ab4abac2144bb0ef5a292 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wenst@chromium.org>
Date: Thu, 9 Dec 2021 17:38:03 +0100
Subject: [PATCH 4864/4878] BACKPORT: media: v4l2-mem2mem: Apply
 DST_QUEUE_OFF_BASE on MMAP buffers across ioctls

[ Upstream commit 8310ca94075e784bbb06593cd6c068ee6b6e4ca6 ]

DST_QUEUE_OFF_BASE is applied to offset/mem_offset on MMAP capture buffers
only for the VIDIOC_QUERYBUF ioctl, while the userspace fields (including
offset/mem_offset) are filled in for VIDIOC_{QUERY,PREPARE,Q,DQ}BUF
ioctls. This leads to differences in the values presented to userspace.
If userspace attempts to mmap the capture buffer directly using values
from DQBUF, it will fail.

Move the code that applies the magic offset into a helper, and call
that helper from all four ioctl entry points.

[hverkuil: drop unnecessary '= 0' in v4l2_m2m_querybuf() for ret]

Bug: 223375145
Fixes: 7f98639def42 ("V4L/DVB: add memory-to-memory device helper framework for videobuf")
Fixes: 908a0d7c588e ("[media] v4l: mem2mem: port to videobuf2")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: Ifab9933f85f4ba7e0fadddf52debaf837830a06d
(cherry picked from commit 6def3a5ed8ee24465edf6b30cdbe4b27c6d4e1df)
---
 drivers/media/v4l2-core/v4l2-mem2mem.c | 53 ++++++++++++++++++++------
 1 file changed, 41 insertions(+), 12 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index b221b4e438a1a..73190652c267b 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -585,19 +585,14 @@ int v4l2_m2m_reqbufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 }
 EXPORT_SYMBOL_GPL(v4l2_m2m_reqbufs);
 
-int v4l2_m2m_querybuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
-		      struct v4l2_buffer *buf)
+static void v4l2_m2m_adjust_mem_offset(struct vb2_queue *vq,
+				       struct v4l2_buffer *buf)
 {
-	struct vb2_queue *vq;
-	int ret = 0;
-	unsigned int i;
-
-	vq = v4l2_m2m_get_vq(m2m_ctx, buf->type);
-	ret = vb2_querybuf(vq, buf);
-
 	/* Adjust MMAP memory offsets for the CAPTURE queue */
 	if (buf->memory == V4L2_MEMORY_MMAP && V4L2_TYPE_IS_CAPTURE(vq->type)) {
 		if (V4L2_TYPE_IS_MULTIPLANAR(vq->type)) {
+			unsigned int i;
+
 			for (i = 0; i < buf->length; ++i)
 				buf->m.planes[i].m.mem_offset
 					+= DST_QUEUE_OFF_BASE;
@@ -605,8 +600,23 @@ int v4l2_m2m_querybuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 			buf->m.offset += DST_QUEUE_OFF_BASE;
 		}
 	}
+}
 
-	return ret;
+int v4l2_m2m_querybuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+		      struct v4l2_buffer *buf)
+{
+	struct vb2_queue *vq;
+	int ret;
+
+	vq = v4l2_m2m_get_vq(m2m_ctx, buf->type);
+	ret = vb2_querybuf(vq, buf);
+	if (ret)
+		return ret;
+
+	/* Adjust MMAP memory offsets for the CAPTURE queue */
+	v4l2_m2m_adjust_mem_offset(vq, buf);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(v4l2_m2m_querybuf);
 
@@ -763,6 +773,9 @@ int v4l2_m2m_qbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 	if (ret)
 		return ret;
 
+	/* Adjust MMAP memory offsets for the CAPTURE queue */
+	v4l2_m2m_adjust_mem_offset(vq, buf);
+
 	/*
 	 * If the capture queue is streaming, but streaming hasn't started
 	 * on the device, but was asked to stop, mark the previously queued
@@ -784,9 +797,17 @@ int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 		   struct v4l2_buffer *buf)
 {
 	struct vb2_queue *vq;
+	int ret;
 
 	vq = v4l2_m2m_get_vq(m2m_ctx, buf->type);
-	return vb2_dqbuf(vq, buf, file->f_flags & O_NONBLOCK);
+	ret = vb2_dqbuf(vq, buf, file->f_flags & O_NONBLOCK);
+	if (ret)
+		return ret;
+
+	/* Adjust MMAP memory offsets for the CAPTURE queue */
+	v4l2_m2m_adjust_mem_offset(vq, buf);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(v4l2_m2m_dqbuf);
 
@@ -795,9 +816,17 @@ int v4l2_m2m_prepare_buf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 {
 	struct video_device *vdev = video_devdata(file);
 	struct vb2_queue *vq;
+	int ret;
 
 	vq = v4l2_m2m_get_vq(m2m_ctx, buf->type);
-	return vb2_prepare_buf(vq, vdev->v4l2_dev->mdev, buf);
+	ret = vb2_prepare_buf(vq, vdev->v4l2_dev->mdev, buf);
+	if (ret)
+		return ret;
+
+	/* Adjust MMAP memory offsets for the CAPTURE queue */
+	v4l2_m2m_adjust_mem_offset(vq, buf);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(v4l2_m2m_prepare_buf);
 
-- 
GitLab


From c56ecad17200341be24bc07af6cf3623bba4f83b Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Thu, 21 Apr 2022 16:47:02 -0700
Subject: [PATCH 4865/4878] UPSTREAM: f2fs: should not truncate blocks during
 roll-forward recovery

If the file preallocated blocks and fsync'ed, we should not truncate them during
roll-forward recovery which will recover i_size correctly back.

Bug: 223740163
Fixes: d4dd19ec1ea0 ("f2fs: do not expose unwritten blocks to user by DIO")
Cc: <stable@vger.kernel.org> # 5.17+
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit 4d8ec91208196e0e19195f1e7d6be9de5873f242)
Change-Id: I5e974a564667115455b53a18f31902a875d86dee
---
 fs/f2fs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index ad5fde39d3bd0..5fffc22689645 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -550,7 +550,8 @@ make_now:
 	}
 	f2fs_set_inode_flags(inode);
 
-	if (file_should_truncate(inode)) {
+	if (file_should_truncate(inode) &&
+			!is_sbi_flag_set(sbi, SBI_POR_DOING)) {
 		ret = f2fs_truncate(inode);
 		if (ret)
 			goto bad_inode;
-- 
GitLab


From 3e591c63b13772a1de0ffed995b482166d27ed71 Mon Sep 17 00:00:00 2001
From: Martin Liu <liumartin@google.com>
Date: Wed, 20 Apr 2022 16:47:57 +0800
Subject: [PATCH 4866/4878] ANDROID: cma: allow to use CMA in swap-in path

Now, we allow to use CMA pages for certain user space
allocations. One of them is anonymous page fault case.
To align the use case, we should also allow to use CMA
pages in swap-in cases. This could help mitigate OOM
on swap-in cases showing plenty of free CMA left.

logd.klogd invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=-1000
CPU: 0 PID: 433 Comm: logd.klogd Tainted: G        W  OE     5.10.100-android13-0 #1

Call trace:
 dump_backtrace.cfi_jt+0x0/0x8
 show_stack+0x1c/0x2c
 dump_stack_lvl+0xc0/0x13c
 dump_header+0x54/0x238
 oom_kill_process+0xb0/0x158
 out_of_memory+0x17c/0x328
 __alloc_pages_slowpath+0x5c4/0x8d0
 __alloc_pages_nodemask+0x1bc/0x2e0
 __read_swap_cache_async+0xdc/0x370
 swap_vma_readahead+0x3b4/0x488
 swapin_readahead+0x3c/0x54
 do_swap_page+0x1e0/0xaa0
 handle_pte_fault+0x128/0x1e0
 handle_mm_fault+0x308/0x590
 do_page_fault+0x33c/0x478
 do_translation_fault+0x58/0x11c
 do_mem_abort+0x68/0x144
 el0_da+0x24/0x34
 el0_sync_handler+0xc4/0xec
 el0_sync+0x1c0/0x200
Mem-Info:
active_anon:0 inactive_anon:3222 isolated_anon:62
 active_file:232 inactive_file:428 isolated_file:0
 unevictable:37232 dirty:3 writeback:40
 slab_reclaimable:19943 slab_unreclaimable:281193
 mapped:37126 shmem:2815 pagetables:8981 bounce:0
 free:126007 free_pcp:223 free_cma:123062
Node 0 active_anon:16kB inactive_anon:13160kB active_file:292kB inactive_file:2000kB unevictable:148928kB isolated(anon):0kB isolated(file):0kB mapped:148308kB dirty:12kB writeback:164kB shmem:11260kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:20528kB shadow_call_stack:5200kB all_unreclaimable? no
DMA32 free:14128kB min:7572kB low:22636kB high:37700kB reserved_highatomic:4096KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1913856kB managed:1553276kB mlocked:0kB pagetables:1292kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:2520kB
lowmem_reserve[]: 0 0 0
Normal free:489888kB min:19808kB low:59220kB high:98632kB reserved_highatomic:36864KB active_anon:20kB inactive_anon:12168kB active_file:0kB inactive_file:1640kB unevictable:148928kB writepending:180kB present:4194304kB managed:4063392kB mlocked:148928kB pagetables:34632kB bounce:0kB free_pcp:1928kB local_pcp:0kB free_cma:489752kB
lowmem_reserve[]: 0 0 0
DMA32: 166*4kB (UME) 163*8kB (UMECH) 592*16kB (UMCH) 5*32kB (UC) 2*64kB (C) 2*128kB (C) 2*256kB (C) 1*512kB (C) 1*1024kB (C) 0*2048kB 0*4096kB = 14032kB
Normal: 969*4kB (C) 77*8kB (C) 40*16kB (C) 17*32kB (C) 5*64kB (C) 1*128kB (C) 2*256kB (C) 1*512kB (C) 0*1024kB 0*2048kB 118*4096kB (C) = 490476kB
40220 total pagecache pages
30 pages in swap cache
Swap cache stats: add 2634625, delete 2635304, find 160621/2963954
Free swap  = 1473788kB
Total swap = 2097148kB

Bug: 229822798
Signed-off-by: Martin Liu <liumartin@google.com>
Change-Id: Ia0bb6f72e52f77f26062e1769bfd92e831f07cab
---
 mm/memory.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 6b688988a4902..a038d72a81106 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3600,7 +3600,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
 		if (data_race(si->flags & SWP_SYNCHRONOUS_IO) &&
 		    __swap_count(entry) == 1) {
 			/* skip swapcache */
-			gfp_t flags = GFP_HIGHUSER_MOVABLE;
+			gfp_t flags = GFP_HIGHUSER_MOVABLE | __GFP_CMA;
 
 			trace_android_rvh_set_skip_swapcache_flags(&flags);
 			page = alloc_page_vma(flags, vma, vmf->address);
@@ -3640,7 +3640,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf)
 			ret = VM_FAULT_RETRY;
 			goto out;
 		} else {
-			page = swapin_readahead(entry, GFP_HIGHUSER_MOVABLE,
+			page = swapin_readahead(entry, GFP_HIGHUSER_MOVABLE | __GFP_CMA,
 						vmf);
 			swapcache = page;
 		}
-- 
GitLab


From 6450df3d7e103af142213c6d1fad9baec18483b6 Mon Sep 17 00:00:00 2001
From: Sebastian Ene <sebastianene@google.com>
Date: Thu, 21 Apr 2022 10:45:51 +0000
Subject: [PATCH 4867/4878] ANDROID: arm64: Auto-enroll MMIO guard on protected
 vms

Set the MMIO guard flag for protected vms prior to entering the guest
for the first time.

Bug: 216798684
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Change-Id: I1448102ae85176d495ae7f8d6d20de4092049f0d
---
 arch/arm64/kvm/hyp/nvhe/pkvm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 6c8b2f420476f..511b5dd5a6fb1 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -833,6 +833,10 @@ void pkvm_reset_vcpu(struct kvm_vcpu *vcpu)
 		*vcpu_pc(vcpu) = entry;
 
 		vm->pvmfw_entry_vcpu = NULL;
+
+		/* Auto enroll MMIO guard */
+		set_bit(KVM_ARCH_FLAG_MMIO_GUARD,
+			&vcpu->arch.pkvm.shadow_vm->arch.flags);
 	} else {
 		*vcpu_pc(vcpu) = reset_state->pc;
 		vcpu_set_reg(vcpu, 0, reset_state->r0);
-- 
GitLab


From 98c15b2bad1a277da43c65c642f8c3c3ee07bacc Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 11 Mar 2022 14:19:59 +0000
Subject: [PATCH 4868/4878] ANDROID: dm-bow: Protect Ranges fetched and erased
 from the RB tree

Bug: 195565510
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: Ic8134eb902aa7d929e3121b2f69b1d258f570652
---
 drivers/md/dm-bow.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-bow.c b/drivers/md/dm-bow.c
index cfd1fa63ff971..2e95d61496920 100644
--- a/drivers/md/dm-bow.c
+++ b/drivers/md/dm-bow.c
@@ -599,6 +599,7 @@ static void dm_bow_dtr(struct dm_target *ti)
 	struct bow_context *bc = (struct bow_context *) ti->private;
 	struct kobject *kobj;
 
+	mutex_lock(&bc->ranges_lock);
 	while (rb_first(&bc->ranges)) {
 		struct bow_range *br = container_of(rb_first(&bc->ranges),
 						    struct bow_range, node);
@@ -606,6 +607,8 @@ static void dm_bow_dtr(struct dm_target *ti)
 		rb_erase(&br->node, &bc->ranges);
 		kfree(br);
 	}
+	mutex_unlock(&bc->ranges_lock);
+
 	if (bc->workqueue)
 		destroy_workqueue(bc->workqueue);
 	if (bc->bufio)
@@ -1181,6 +1184,7 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 		return;
 	}
 
+	mutex_lock(&bc->ranges_lock);
 	for (i = rb_first(&bc->ranges); i; i = rb_next(i)) {
 		struct bow_range *br = container_of(i, struct bow_range, node);
 
@@ -1188,11 +1192,11 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 				    readable_type[br->type],
 				    (unsigned long long)br->sector);
 		if (result >= end)
-			return;
+			goto unlock;
 
 		result += scnprintf(result, end - result, "\n");
 		if (result >= end)
-			return;
+			goto unlock;
 
 		if (br->type == TRIMMED)
 			++trimmed_range_count;
@@ -1214,19 +1218,22 @@ static void dm_bow_tablestatus(struct dm_target *ti, char *result,
 		if (!rb_next(i)) {
 			scnprintf(result, end - result,
 				  "\nERROR: Last range not of type TOP");
-			return;
+			goto unlock;
 		}
 
 		if (br->sector > range_top(br)) {
 			scnprintf(result, end - result,
 				  "\nERROR: sectors out of order");
-			return;
+			goto unlock;
 		}
 	}
 
 	if (trimmed_range_count != trimmed_list_length)
 		scnprintf(result, end - result,
 			  "\nERROR: not all trimmed ranges in trimmed list");
+
+unlock:
+	mutex_unlock(&bc->ranges_lock);
 }
 
 static void dm_bow_status(struct dm_target *ti, status_type_t type,
-- 
GitLab


From 06bb3003c686a8a96c9f5b592d00df2945cca9ec Mon Sep 17 00:00:00 2001
From: Jiazi Li <jqqlijiazi@gmail.com>
Date: Wed, 29 Sep 2021 19:59:28 +0800
Subject: [PATCH 4869/4878] BACKPORT: dm: fix NULL pointer issue when free bio

dm_io_dec_pending call end_io_acct first, will dec md in-flight
pending count. If a task is swapping table at same time.
task1                             task2
do_resume
 ->do_suspend
  ->dm_wait_for_completion
                                  bio_endio
				   ->clone_endio
				    ->dm_io_dec_pending
				     ->end_io_acct
				      ->wakeup task1
 ->dm_swap_table
  ->__bind
   ->__bind_mempools
    ->bioset_exit
     ->mempool_exit
                                     ->free_io
mempool->elements is NULL, and lead to following crash:
[ 67.330330] Unable to handle kernel NULL pointer dereference at virtual
address 0000000000000000
......
[ 67.330494] pstate: 80400085 (Nzcv daIf +PAN -UAO)
[ 67.330510] pc : mempool_free+0x70/0xa0
[ 67.330515] lr : mempool_free+0x4c/0xa0
[ 67.330520] sp : ffffff8008013b20
[ 67.330524] x29: ffffff8008013b20 x28: 0000000000000004
[ 67.330530] x27: ffffffa8c2ff40a0 x26: 00000000ffff1cc8
[ 67.330535] x25: 0000000000000000 x24: ffffffdada34c800
[ 67.330541] x23: 0000000000000000 x22: ffffffdada34c800
[ 67.330547] x21: 00000000ffff1cc8 x20: ffffffd9a1304d80
[ 67.330552] x19: ffffffdada34c970 x18: 000000b312625d9c
[ 67.330558] x17: 00000000002dcfbf x16: 00000000000006dd
[ 67.330563] x15: 000000000093b41e x14: 0000000000000010
[ 67.330569] x13: 0000000000007f7a x12: 0000000034155555
[ 67.330574] x11: 0000000000000001 x10: 0000000000000001
[ 67.330579] x9 : 0000000000000000 x8 : 0000000000000000
[ 67.330585] x7 : 0000000000000000 x6 : ffffff80148b5c1a
[ 67.330590] x5 : ffffff8008013ae0 x4 : 0000000000000001
[ 67.330596] x3 : ffffff80080139c8 x2 : ffffff801083bab8
[ 67.330601] x1 : 0000000000000000 x0 : ffffffdada34c970
[ 67.330609] Call trace:
[ 67.330616] mempool_free+0x70/0xa0
[ 67.330627] bio_put+0xf8/0x110
[ 67.330638] dec_pending+0x13c/0x230
[ 67.330644] clone_endio+0x90/0x180
[ 67.330649] bio_endio+0x198/0x1b8
[ 67.330655] dec_pending+0x190/0x230
[ 67.330660] clone_endio+0x90/0x180
[ 67.330665] bio_endio+0x198/0x1b8
[ 67.330673] blk_update_request+0x214/0x428
[ 67.330683] scsi_end_request+0x2c/0x300
[ 67.330688] scsi_io_completion+0xa0/0x710
[ 67.330695] scsi_finish_command+0xd8/0x110
[ 67.330700] scsi_softirq_done+0x114/0x148
[ 67.330708] blk_done_softirq+0x74/0xd0
[ 67.330716] __do_softirq+0x18c/0x374
[ 67.330724] irq_exit+0xb4/0xb8
[ 67.330732] __handle_domain_irq+0x84/0xc0
[ 67.330737] gic_handle_irq+0x148/0x1b0
[ 67.330744] el1_irq+0xe8/0x190
[ 67.330753] lpm_cpuidle_enter+0x4f8/0x538
[ 67.330759] cpuidle_enter_state+0x1fc/0x398
[ 67.330764] cpuidle_enter+0x18/0x20
[ 67.330772] do_idle+0x1b4/0x290
[ 67.330778] cpu_startup_entry+0x20/0x28
[ 67.330786] secondary_start_kernel+0x160/0x170

Move end_io_acct after free_io to fix this issue.

Bug: 228982905
Link: https://lore.kernel.org/dm-devel/1632916768-22379-1-git-send-email-lijiazi@xiaomi.com/T/#u
[Akilesh: Resolved merge conflict in drivers/md/dm.c]
Signed-off-by: Jiazi Li <lijiazi@xiaomi.com>
Signed-off-by: Akilesh Kailash <akailash@google.com>
(cherry picked from commit d208b89401e073de986dc891037c5a668f5d5d95)
Change-Id: I9f122cab2af3b961c472b8cf2087399c63c28de1
---
 drivers/md/dm.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 10eb0544f1cba..9fd176e225aff 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -608,18 +608,17 @@ static void start_io_acct(struct dm_io *io)
 				    false, 0, &io->stats_aux);
 }
 
-static void end_io_acct(struct dm_io *io)
+static void end_io_acct(struct mapped_device *md, struct bio *bio,
+		unsigned long start_time, struct dm_stats_aux *stats_aux)
 {
-	struct mapped_device *md = io->md;
-	struct bio *bio = io->orig_bio;
-	unsigned long duration = jiffies - io->start_time;
+	unsigned long duration = jiffies - start_time;
 
-	bio_end_io_acct(bio, io->start_time);
+	bio_end_io_acct(bio, start_time);
 
 	if (unlikely(dm_stats_used(&md->stats)))
 		dm_stats_account_io(&md->stats, bio_data_dir(bio),
 				    bio->bi_iter.bi_sector, bio_sectors(bio),
-				    true, duration, &io->stats_aux);
+				    true, duration, stats_aux);
 
 	/* nudge anyone waiting on suspend queue */
 	if (unlikely(wq_has_sleeper(&md->wait)))
@@ -904,6 +903,8 @@ static void dec_pending(struct dm_io *io, blk_status_t error)
 	blk_status_t io_error;
 	struct bio *bio;
 	struct mapped_device *md = io->md;
+	unsigned long start_time = 0;
+	struct dm_stats_aux stats_aux;
 
 	/* Push-back supersedes any I/O errors */
 	if (unlikely(error)) {
@@ -930,8 +931,10 @@ static void dec_pending(struct dm_io *io, blk_status_t error)
 
 		io_error = io->status;
 		bio = io->orig_bio;
-		end_io_acct(io);
+		start_time = io->start_time;
+		stats_aux = io->stats_aux;
 		free_io(md, io);
+		end_io_acct(md, bio, start_time, &stats_aux);
 
 		if (io_error == BLK_STS_DM_REQUEUE)
 			return;
-- 
GitLab


From a0046956bf6fe4637ce9686f314e7332535ef1b1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 12 Mar 2022 15:29:58 -0800
Subject: [PATCH 4870/4878] BACKPORT: net/packet: fix slab-out-of-bounds access
 in packet_recvmsg()

[ Upstream commit c700525fcc06b05adfea78039de02628af79e07a ]

syzbot found that when an AF_PACKET socket is using PACKET_COPY_THRESH
and mmap operations, tpacket_rcv() is queueing skbs with
garbage in skb->cb[], triggering a too big copy [1]

Presumably, users of af_packet using mmap() already gets correct
metadata from the mapped buffer, we can simply make sure
to clear 12 bytes that might be copied to user space later.

BUG: KASAN: stack-out-of-bounds in memcpy include/linux/fortify-string.h:225 [inline]
BUG: KASAN: stack-out-of-bounds in packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489
Write of size 165 at addr ffffc9000385fb78 by task syz-executor233/3631

CPU: 0 PID: 3631 Comm: syz-executor233 Not tainted 5.17.0-rc7-syzkaller-02396-g0b3660695e80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0xf/0x336 mm/kasan/report.c:255
 __kasan_report mm/kasan/report.c:442 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:459
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
 memcpy+0x39/0x60 mm/kasan/shadow.c:66
 memcpy include/linux/fortify-string.h:225 [inline]
 packet_recvmsg+0x56c/0x1150 net/packet/af_packet.c:3489
 sock_recvmsg_nosec net/socket.c:948 [inline]
 sock_recvmsg net/socket.c:966 [inline]
 sock_recvmsg net/socket.c:962 [inline]
 ____sys_recvmsg+0x2c4/0x600 net/socket.c:2632
 ___sys_recvmsg+0x127/0x200 net/socket.c:2674
 __sys_recvmsg+0xe2/0x1a0 net/socket.c:2704
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fdfd5954c29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcf8e71e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdfd5954c29
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf8e71e60
R13: 00000000000f4240 R14: 000000000000c1ff R15: 00007ffcf8e71e54
 </TASK>

addr ffffc9000385fb78 is located in stack of task syz-executor233/3631 at offset 32 in frame:
 ____sys_recvmsg+0x0/0x600 include/linux/uio.h:246

this frame has 1 object:
 [32, 160) 'addr'

Memory state around the buggy address:
 ffffc9000385fa80: 00 04 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 00
 ffffc9000385fb00: 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00
>ffffc9000385fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f3
                                                                ^
 ffffc9000385fc00: f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
 ffffc9000385fc80: f1 f1 f1 00 f2 f2 f2 00 f2 f2 f2 00 00 00 00 00
==================================================================

Bug: 224546354
Fixes: 0fb375fb9b93 ("[AF_PACKET]: Allow for > 8 byte hardware addresses.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Link: https://lore.kernel.org/r/20220312232958.3535620-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Change-Id: I37e4a05a8d81b2645bc65db002e644b40d1a984d
---
 net/packet/af_packet.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index a31334b92be7e..d0c95d7dd292d 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2278,8 +2278,11 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
 					copy_skb = skb_get(skb);
 					skb_head = skb->data;
 				}
-				if (copy_skb)
+				if (copy_skb) {
+					memset(&PACKET_SKB_CB(copy_skb)->sa.ll, 0,
+					       sizeof(PACKET_SKB_CB(copy_skb)->sa.ll));
 					skb_set_owner_r(copy_skb, sk);
+				}
 			}
 			snaplen = po->rx_ring.frame_size - macoff;
 			if ((int)snaplen < 0) {
@@ -3434,6 +3437,8 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	sock_recv_ts_and_drops(msg, sk, skb);
 
 	if (msg->msg_name) {
+		const size_t max_len = min(sizeof(skb->cb),
+					   sizeof(struct sockaddr_storage));
 		int copy_len;
 
 		/* If the address length field is there to be filled
@@ -3456,6 +3461,10 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 				msg->msg_namelen = sizeof(struct sockaddr_ll);
 			}
 		}
+		if (WARN_ON_ONCE(copy_len > max_len)) {
+			copy_len = max_len;
+			msg->msg_namelen = copy_len;
+		}
 		memcpy(msg->msg_name, &PACKET_SKB_CB(skb)->sa, copy_len);
 	}
 
-- 
GitLab


From 5f9fb34d8b3ba0990e6f09491444e1ab28ae8c0c Mon Sep 17 00:00:00 2001
From: Marco Elver <elver@google.com>
Date: Fri, 9 Apr 2021 13:27:44 -0700
Subject: [PATCH 4871/4878] UPSTREAM: kfence, x86: fix preemptible warning on
 KPTI-enabled systems

On systems with KPTI enabled, we can currently observe the following
warning:

  BUG: using smp_processor_id() in preemptible
  caller is invalidate_user_asid+0x13/0x50
  CPU: 6 PID: 1075 Comm: dmesg Not tainted 5.12.0-rc4-gda4a2b1a5479-kfence_1+ #1
  Hardware name: Hewlett-Packard HP Pro 3500 Series/2ABF, BIOS 8.11 10/24/2012
  Call Trace:
   dump_stack+0x7f/0xad
   check_preemption_disabled+0xc8/0xd0
   invalidate_user_asid+0x13/0x50
   flush_tlb_one_kernel+0x5/0x20
   kfence_protect+0x56/0x80
   ...

While it normally makes sense to require preemption to be off, so that
the expected CPU's TLB is flushed and not another, in our case it really
is best-effort (see comments in kfence_protect_page()).

Avoid the warning by disabling preemption around flush_tlb_one_kernel().

Link: https://lore.kernel.org/lkml/YGIDBAboELGgMgXy@elver.google.com/
Link: https://lkml.kernel.org/r/20210330065737.652669-1-elver@google.com
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Tomi Sarvela <tomi.p.sarvela@intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 6a77d38efcda40f555a920909eab22ee0917fd0d)

Bug: 229863099
Signed-off-by: Colin Downs-Razouk <colindr@google.com>
Change-Id: Ia917b052ffbb267254f281f55141c34ad193c78e
---
 arch/x86/include/asm/kfence.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kfence.h b/arch/x86/include/asm/kfence.h
index 97bbb4a9083a7..05b48b33baf0b 100644
--- a/arch/x86/include/asm/kfence.h
+++ b/arch/x86/include/asm/kfence.h
@@ -56,8 +56,13 @@ static inline bool kfence_protect_page(unsigned long addr, bool protect)
 	else
 		set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT));
 
-	/* Flush this CPU's TLB. */
+	/*
+	 * Flush this CPU's TLB, assuming whoever did the allocation/free is
+	 * likely to continue running on this CPU.
+	 */
+	preempt_disable();
 	flush_tlb_one_kernel(addr);
+	preempt_enable();
 	return true;
 }
 
-- 
GitLab


From e78c5b621d094974cb63304fbb85d3fd7d5c1734 Mon Sep 17 00:00:00 2001
From: Charan Teja Kalla <quic_charante@quicinc.com>
Date: Tue, 22 Mar 2022 14:46:44 -0700
Subject: [PATCH 4872/4878] UPSTREAM: mm: madvise: return correct bytes advised
 with process_madvise
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Patch series "mm: madvise: return correct bytes processed with
process_madvise", v2.  With the process_madvise(), always choose to return
non zero processed bytes over an error.  This can help the user to know on
which VMA, passed in the 'struct iovec' vector list, is failed to advise
thus can take the decission of retrying/skipping on that VMA.

This patch (of 2):

The process_madvise() system call returns error even after processing some
VMA's passed in the 'struct iovec' vector list which leaves the user
confused to know where to restart the advise next.  It is also against
this syscall man page[1] documentation where it mentions that "return
value may be less than the total number of requested bytes, if an error
occurred after some iovec elements were already processed.".

Consider a user passed 10 VMA's in the 'struct iovec' vector list of which
9 are processed but one.  Then it just returns the error caused on that
failed VMA despite the first 9 VMA's processed, leaving the user confused
about on which VMA it is failed.  Returning the number of bytes processed
here can help the user to know which VMA it is failed on and thus can
retry/skip the advise on that VMA.

[1]https://man7.org/linux/man-pages/man2/process_madvise.2.html.

Link: https://lkml.kernel.org/r/cover.1647008754.git.quic_charante@quicinc.com
Link: https://lkml.kernel.org/r/125b61a0edcee5c2db8658aed9d06a43a19ccafc.1647008754.git.quic_charante@quicinc.com
Fixes: ecb8ac8b1f14("mm/madvise: introduce process_madvise() syscall: an external memory hinting API")
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5bd009c7c9a9e888077c07535dc0c70aeab242c3)

Bug: 205658049
Test: Manual, build and flash

Signed-off-by: Edgar Arriaga García <edgararriaga@google.com>
Change-Id: I03f14997e542943fed75f0988b2c37aeaed649f7
---
 mm/madvise.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/madvise.c b/mm/madvise.c
index a1281c795292d..8920a7125389f 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1383,8 +1383,7 @@ SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec,
 		iov_iter_advance(&iter, iovec.iov_len);
 	}
 
-	if (ret == 0)
-		ret = total_len - iov_iter_count(&iter);
+	ret = (total_len - iov_iter_count(&iter)) ? : ret;
 
 release_mm:
 	mmput(mm);
-- 
GitLab


From 4053a1e89879a12172605f1dadd760a1a0396798 Mon Sep 17 00:00:00 2001
From: Elliot Berman <quic_eberman@quicinc.com>
Date: Wed, 27 Apr 2022 12:55:25 -0700
Subject: [PATCH 4873/4878] ANDROID: Add flag to indicate compiling against ACK

Add a flag: __ANDROID_COMMON_KERNEL__ which out-of-tree vendor drivers
can use to check if they are compiling against an Android Common Kernel.
These out-of-tree vendor drivers can use this flag +
LINUX_KERNEL_VERSION to determine if a feature has been backported.

Bug: 229953929
Change-Id: I832344d63f3639479784753edfb7ac405068312f
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
---
 build.config.common | 1 +
 1 file changed, 1 insertion(+)

diff --git a/build.config.common b/build.config.common
index 9a3580b33978c..52aea299e7a6f 100644
--- a/build.config.common
+++ b/build.config.common
@@ -8,6 +8,7 @@ CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-${CLANG_VERSION}/bin
 BUILDTOOLS_PREBUILT_BIN=build/kernel/build-tools/path/linux-x86
 DTC=${ROOT_DIR}/${BUILDTOOLS_PREBUILT_BIN}/dtc
 
+KCFLAGS=-D__ANDROID_COMMON_KERNEL__
 EXTRA_CMDS=''
 STOP_SHIP_TRACEPRINTK=1
 IN_KERNEL_MODULES=1
-- 
GitLab


From 277827dd5bf0866df0cc147e36bb916a3b08d8a7 Mon Sep 17 00:00:00 2001
From: Lecopzer Chen <lecopzer.chen@mediatek.com>
Date: Fri, 29 Apr 2022 16:37:36 +0800
Subject: [PATCH 4874/4878] ANDROID: fix KCFLAGS override by
 __ANDROID_COMMON_KERNEL__

Our test build is broken by KCFLAGS overrided in build.config.comm.

Since Linux Makefile supports 'export KCFLAGS=XXX' to customize the
KCFLAGS, and we should keep this functionality.

Bug: 230818006
Fixes: 4053a1e89879 ("ANDROID: Add flag to indicate compiling against ACK")
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Change-Id: I9425d79697bc1fe816ce82d523f91631dee6b8f4
---
 build.config.common | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.common b/build.config.common
index 52aea299e7a6f..a07fb7f8c0120 100644
--- a/build.config.common
+++ b/build.config.common
@@ -8,7 +8,7 @@ CLANG_PREBUILT_BIN=prebuilts/clang/host/linux-x86/clang-${CLANG_VERSION}/bin
 BUILDTOOLS_PREBUILT_BIN=build/kernel/build-tools/path/linux-x86
 DTC=${ROOT_DIR}/${BUILDTOOLS_PREBUILT_BIN}/dtc
 
-KCFLAGS=-D__ANDROID_COMMON_KERNEL__
+KCFLAGS="${KCFLAGS} -D__ANDROID_COMMON_KERNEL__"
 EXTRA_CMDS=''
 STOP_SHIP_TRACEPRINTK=1
 IN_KERNEL_MODULES=1
-- 
GitLab


From 3ed683cb941fc0a457159dbaf736eee40f82b840 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= <maze@google.com>
Date: Fri, 17 Sep 2021 15:41:58 -0700
Subject: [PATCH 4875/4878] ANDROID: gki - set CONFIG_USB_NET_AX88179_178A=y
 (usb gbit ethernet dongle)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Per Kconfig:
  config USB_NET_AX88179_178A
    tristate "ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet"
  depends on USB_USBNET
  select CRC32
  select PHYLIB
  default y
  help
    This option adds support for ASIX AX88179 based USB 3.0/2.0
    to Gigabit Ethernet adapters.
    This driver should work with at least the following devices:
      * ASIX AX88179
      * ASIX AX88178A
      * Sitcomm LN-032
    This driver creates an interface named "ethX", where X depends on
    what other networking devices you have in use.

This was already enabled on 'db845c_gki.fragment',
which suggests this hardware is reasonably common
(even though I don't have a dongle that requires it).

Test: TreeHugger
Bug: 200269356
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I9915cfb54a324f007d508a8e3d2aad1d6fc9e5de
---
 arch/arm64/configs/db845c_gki.fragment | 1 -
 arch/arm64/configs/gki_defconfig       | 1 -
 arch/x86/configs/gki_defconfig         | 1 -
 3 files changed, 3 deletions(-)

diff --git a/arch/arm64/configs/db845c_gki.fragment b/arch/arm64/configs/db845c_gki.fragment
index 5ba41f2d8ddcb..7260af26f4a36 100644
--- a/arch/arm64/configs/db845c_gki.fragment
+++ b/arch/arm64/configs/db845c_gki.fragment
@@ -1,7 +1,6 @@
 CONFIG_QRTR=m
 CONFIG_QRTR_TUN=m
 CONFIG_SCSI_UFS_QCOM=m
-CONFIG_USB_NET_AX88179_178A=m
 CONFIG_INPUT_PM8941_PWRKEY=m
 CONFIG_SERIAL_MSM=m
 CONFIG_SERIAL_QCOM_GENI=m
diff --git a/arch/arm64/configs/gki_defconfig b/arch/arm64/configs/gki_defconfig
index 9fef3770f3703..86f63c51de4d7 100644
--- a/arch/arm64/configs/gki_defconfig
+++ b/arch/arm64/configs/gki_defconfig
@@ -347,7 +347,6 @@ CONFIG_PPPOL2TP=y
 CONFIG_USB_RTL8150=y
 CONFIG_USB_RTL8152=y
 CONFIG_USB_USBNET=y
-# CONFIG_USB_NET_AX88179_178A is not set
 CONFIG_USB_NET_CDC_EEM=y
 # CONFIG_USB_NET_NET1080 is not set
 # CONFIG_USB_NET_CDC_SUBSET is not set
diff --git a/arch/x86/configs/gki_defconfig b/arch/x86/configs/gki_defconfig
index 02826ddbb7125..103720489453e 100644
--- a/arch/x86/configs/gki_defconfig
+++ b/arch/x86/configs/gki_defconfig
@@ -318,7 +318,6 @@ CONFIG_PPPOL2TP=y
 CONFIG_USB_RTL8150=y
 CONFIG_USB_RTL8152=y
 CONFIG_USB_USBNET=y
-# CONFIG_USB_NET_AX88179_178A is not set
 CONFIG_USB_NET_CDC_EEM=y
 # CONFIG_USB_NET_NET1080 is not set
 # CONFIG_USB_NET_CDC_SUBSET is not set
-- 
GitLab


From 4eb197cb06e5bae696d626df8585a12ca7d2df5d Mon Sep 17 00:00:00 2001
From: Todd Kjos <tkjos@google.com>
Date: Fri, 29 Apr 2022 16:40:03 -0700
Subject: [PATCH 4876/4878] ANDROID: fix kernelci build issue for configfs
 module

This fixes the kernelci error:

"ERROR: modpost: module configfs uses symbol kern_path from namespace
VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver, but does not import it."

Bug: 230913804
Fixes: 0a77fca3aafc ("ANDROID: GKI: set vfs-only exports into their own namespace")
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: Ib4ab1b83c8c8c996b1f15c419fb8ce0549832699
---
 fs/configfs/mount.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c
index 0c6e8cf619530..c01eb7264b4d1 100644
--- a/fs/configfs/mount.c
+++ b/fs/configfs/mount.c
@@ -175,6 +175,7 @@ MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("0.0.2");
 MODULE_DESCRIPTION("Simple RAM filesystem for user driven kernel subsystem configuration.");
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
 
 core_initcall(configfs_init);
 module_exit(configfs_exit);
-- 
GitLab


From 43e6093d9dacd3bb480e2c370528ec17053592fa Mon Sep 17 00:00:00 2001
From: Will Deacon <will@kernel.org>
Date: Wed, 27 Apr 2022 18:13:32 +0100
Subject: [PATCH 4877/4878] FROMGIT: KVM: arm64: Handle host stage-2 faults
 from 32-bit EL0

When pKVM is enabled, host memory accesses are translated by an identity
mapping at stage-2, which is populated lazily in response to synchronous
exceptions from 64-bit EL1 and EL0.

Extend this handling to cover exceptions originating from 32-bit EL0 as
well. Although these are very unlikely to occur in practice, as the
kernel typically ensures that user pages are initialised before mapping
them in, drivers could still map previously untouched device pages into
userspace and expect things to work rather than panic the system.

Cc: Quentin Perret <qperret@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220427171332.13635-1-will@kernel.org
(cherry picked from commit 2a50fc5fd09798cc154b587acd4f4ee261ea19be
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git fixes)
Bug: 216811181
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I98ad9d9f0e2a78751ed73cc5d7c481d07a3ed1db
---
 arch/arm64/kvm/hyp/nvhe/host.S | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/host.S b/arch/arm64/kvm/hyp/nvhe/host.S
index 8fc25633d6cc9..85788e511156a 100644
--- a/arch/arm64/kvm/hyp/nvhe/host.S
+++ b/arch/arm64/kvm/hyp/nvhe/host.S
@@ -198,15 +198,15 @@ SYM_CODE_START(__kvm_hyp_host_vector)
 	invalid_host_el2_vect			// FIQ EL2h
 	invalid_host_el2_vect			// Error EL2h
 
-	host_el1_sync_vect			// Synchronous 64-bit EL1
-	invalid_host_el1_vect			// IRQ 64-bit EL1
-	invalid_host_el1_vect			// FIQ 64-bit EL1
-	invalid_host_el1_vect			// Error 64-bit EL1
-
-	invalid_host_el1_vect			// Synchronous 32-bit EL1
-	invalid_host_el1_vect			// IRQ 32-bit EL1
-	invalid_host_el1_vect			// FIQ 32-bit EL1
-	invalid_host_el1_vect			// Error 32-bit EL1
+	host_el1_sync_vect			// Synchronous 64-bit EL1/EL0
+	invalid_host_el1_vect			// IRQ 64-bit EL1/EL0
+	invalid_host_el1_vect			// FIQ 64-bit EL1/EL0
+	invalid_host_el1_vect			// Error 64-bit EL1/EL0
+
+	host_el1_sync_vect			// Synchronous 32-bit EL1/EL0
+	invalid_host_el1_vect			// IRQ 32-bit EL1/EL0
+	invalid_host_el1_vect			// FIQ 32-bit EL1/EL0
+	invalid_host_el1_vect			// Error 32-bit EL1/EL0
 SYM_CODE_END(__kvm_hyp_host_vector)
 
 /*
-- 
GitLab


From 4dce9d7a65b14d5949b20ced210413d04d914053 Mon Sep 17 00:00:00 2001
From: Yi Kong <yikong@google.com>
Date: Mon, 2 May 2022 19:41:20 +0000
Subject: [PATCH 4878/4878] ANDROID: clang: update to 14.0.7

Bug: 219872481
Change-Id: I5f6cabe293431b5351dd45db632be6bbd82b34b1
Signed-off-by: Yi Kong <yikong@google.com>
---
 build.config.constants | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.config.constants b/build.config.constants
index c4f41fec703b7..028ad6a847497 100644
--- a/build.config.constants
+++ b/build.config.constants
@@ -1,2 +1,2 @@
 BRANCH=android13-5.10
-CLANG_VERSION=r450784b
+CLANG_VERSION=r450784e
-- 
GitLab